/* roulang page: index */
:root {
            --color-charcoal: #171A21;
            --color-charcoal-dark: #0F1117;
            --color-amber: #E8B339;
            --color-amber-dark: #D09D2E;
            --color-mist: #A8B3C0;
            --color-bg-light: #F5F6F8;
            --color-surface: #FFFFFF;
            --color-surface-dark: #1D2027;
            --color-border-light: #E3E6EA;
            --color-border-dark: #2A2F38;
            --color-sage: #3A7D70;
            --radius-xl: 12px;
            --radius-2xl: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 10px 24px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.16);
            --transition-base: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --header-height: 68px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.85;
            color: #2D3138;
            background-color: var(--color-bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-amber);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-base);
        }

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 14px;
            color: #2D3138;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: var(--header-height);
            background: rgba(23, 26, 33, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border-dark);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.18);
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }
        .logo-text {
            font-size: 1.55rem;
            font-weight: 700;
            letter-spacing: 0.01em;
            color: #FFFFFF;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .logo-text .logo-dot {
            width: 10px;
            height: 10px;
            background: var(--color-amber);
            border-radius: 50%;
            display: inline-block;
            flex-shrink: 0;
            animation: logoPulse 3s ease-in-out infinite;
        }
        @keyframes logoPulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.65;
                transform: scale(0.9);
            }
        }
        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: #D1D5DB;
            border-radius: 8px;
            letter-spacing: 0.01em;
            position: relative;
            transition: color var(--transition-base), background-color var(--transition-base);
        }
        .nav-link:hover {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-link.active {
            color: var(--color-amber);
            background: rgba(232, 179, 57, 0.12);
        }
        .nav-link .nav-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: currentColor;
            opacity: 0.5;
            flex-shrink: 0;
        }
        .nav-actions-desktop {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 0.875rem;
            border-radius: 10px;
            padding: 12px 22px;
            min-height: 44px;
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: var(--color-amber);
            color: #1A1D22;
            box-shadow: 0 4px 14px rgba(232, 179, 57, 0.3);
        }
        .btn-primary:hover {
            background: var(--color-amber-dark);
            box-shadow: 0 6px 20px rgba(232, 179, 57, 0.4);
            transform: translateY(-1px) scale(0.99);
        }
        .btn-primary:active {
            transform: scale(0.97);
            box-shadow: 0 2px 8px rgba(232, 179, 57, 0.25);
        }
        .btn-secondary {
            background: transparent;
            color: #D1D5DB;
            border: 1px solid #4A5058;
            box-shadow: none;
        }
        .btn-secondary:hover {
            border-color: var(--color-amber);
            color: var(--color-amber);
            background: rgba(232, 179, 57, 0.06);
        }
        .btn-secondary:active {
            transform: scale(0.97);
        }
        .btn-sm {
            padding: 8px 16px;
            min-height: 36px;
            font-size: 0.8rem;
            border-radius: 8px;
        }
        .btn-lg {
            padding: 14px 28px;
            min-height: 52px;
            font-size: 0.95rem;
            border-radius: 12px;
        }
        .btn-block {
            width: 100%;
        }
        .btn[disabled] {
            opacity: 0.3;
            cursor: not-allowed;
            pointer-events: none;
        }

        /* Mobile nav toggle */
        .mobile-nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            border: 1px solid #3A3F48;
            background: rgba(255, 255, 255, 0.04);
            gap: 5px;
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .mobile-nav-toggle:hover {
            border-color: var(--color-amber);
            background: rgba(232, 179, 57, 0.08);
        }
        .mobile-nav-toggle .bar {
            width: 22px;
            height: 2px;
            background: #E5E7EB;
            border-radius: 2px;
            transition: all var(--transition-smooth);
        }
        .mobile-nav-toggle.active .bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .mobile-nav-toggle.active .bar:nth-child(2) {
            opacity: 0;
        }
        .mobile-nav-toggle.active .bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(23, 26, 33, 0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            z-index: 99;
            padding: 20px 24px 40px;
            overflow-y: auto;
            flex-direction: column;
            gap: 8px;
            animation: fadeInDown 0.25s ease;
        }
        .mobile-menu.open {
            display: flex;
        }
        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .mobile-menu .nav-link {
            font-size: 1rem;
            padding: 14px 16px;
            border-radius: 10px;
            border: 1px solid transparent;
        }
        .mobile-menu .nav-link:hover {
            border-color: #3A3F48;
        }
        .mobile-menu .nav-link.active {
            border-color: rgba(232, 179, 57, 0.3);
        }
        .mobile-menu .btn {
            width: 100%;
            margin-top: 8px;
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 82vh;
            display: flex;
            align-items: center;
            padding-top: calc(var(--header-height) + 24px);
            padding-bottom: 56px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(15, 17, 23, 0.92) 0%, rgba(15, 17, 23, 0.72) 38%, rgba(15, 17, 23, 0.35) 70%, rgba(15, 17, 23, 0.55) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.85fr;
            gap: 40px;
            align-items: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(232, 179, 57, 0.14);
            border: 1px solid rgba(232, 179, 57, 0.35);
            color: var(--color-amber);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 20px;
            letter-spacing: 0.02em;
            margin-bottom: 18px;
        }
        .hero-title {
            font-size: 2.4rem;
            font-weight: 700;
            line-height: 1.22;
            color: #FFFFFF;
            letter-spacing: -0.01em;
            margin-bottom: 18px;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .hero-title .highlight {
            color: var(--color-amber);
        }
        .hero-subtitle {
            font-size: 1.02rem;
            color: #D1D5DB;
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 28px;
            letter-spacing: 0.01em;
        }
        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 28px;
        }
        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }
        .hero-stat {
            color: #E5E7EB;
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            gap: 7px;
        }
        .hero-stat .stat-num {
            font-weight: 700;
            color: var(--color-amber);
            font-size: 1.05rem;
        }
        .hero-topic-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 16px;
        }
        .hero-topic-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.14);
            color: #E5E7EB;
            font-size: 0.78rem;
            padding: 6px 12px;
            border-radius: 16px;
            transition: all var(--transition-base);
        }
        .hero-topic-tag:hover {
            border-color: var(--color-amber);
            color: var(--color-amber);
            background: rgba(232, 179, 57, 0.1);
        }
        .hero-topic-tag .tag-hot {
            color: #E85B4A;
            font-size: 0.7rem;
        }

        /* Hero right card — trending topics card */
        .hero-card {
            background: rgba(29, 32, 39, 0.72);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-2xl);
            padding: 20px 18px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
        }
        .hero-card .card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 12px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            margin-bottom: 12px;
        }
        .hero-card .card-header h3 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #FFFFFF;
        }
        .hero-card .card-header .badge-pin {
            background: var(--color-amber);
            color: #1A1D22;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 3px 8px;
            border-radius: 10px;
            letter-spacing: 0.03em;
        }
        .hero-topic-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 8px;
            border-radius: 8px;
            cursor: pointer;
            transition: background-color var(--transition-base);
        }
        .hero-topic-item:hover {
            background: rgba(255, 255, 255, 0.06);
        }
        .hero-topic-item .rank {
            font-weight: 700;
            font-size: 0.8rem;
            color: var(--color-mist);
            width: 22px;
            flex-shrink: 0;
            text-align: center;
        }
        .hero-topic-item .rank.top1 {
            color: var(--color-amber);
        }
        .hero-topic-item .topic-info {
            flex: 1;
            min-width: 0;
        }
        .hero-topic-item .topic-info .topic-title {
            font-size: 0.85rem;
            color: #E5E7EB;
            font-weight: 500;
            line-height: 1.5;
            margin-bottom: 3px;
        }
        .hero-topic-item .topic-info .topic-meta {
            display: flex;
            gap: 10px;
            font-size: 0.7rem;
            color: var(--color-mist);
        }

        /* Section base */
        .section {
            padding-top: 3.2rem;
            padding-bottom: 3.2rem;
            position: relative;
        }
        .section-sm {
            padding-top: 1.8rem;
            padding-bottom: 1.8rem;
        }
        .section-title {
            font-size: 1.55rem;
            font-weight: 700;
            line-height: 1.32;
            color: #1A1D22;
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }
        .section-desc {
            font-size: 0.92rem;
            color: #5A6270;
            line-height: 1.8;
            max-width: 640px;
            margin-bottom: 22px;
        }
        .section-header {
            margin-bottom: 28px;
        }
        .section-header .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--color-amber-dark);
            letter-spacing: 0.06em;
            margin-bottom: 8px;
            text-transform: uppercase;
        }
        .section-label .label-line {
            width: 24px;
            height: 2px;
            background: var(--color-amber);
            border-radius: 2px;
        }

        /* Cards */
        .card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-2xl);
            padding: 18px;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-sm);
        }
        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(232, 179, 57, 0.45);
        }
        .card-dark {
            background: var(--color-surface-dark);
            border: 1px solid var(--color-border-dark);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
        }
        .card-dark:hover {
            border-color: rgba(232, 179, 57, 0.5);
        }
        .card-cover {
            width: 100%;
            aspect-ratio: 16/9;
            border-radius: 10px;
            overflow: hidden;
            margin-bottom: 12px;
            background: #EDF0F3;
            position: relative;
        }
        .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: relative;
            z-index: 1;
        }
        .card-cover .cover-badge {
            position: absolute;
            top: 10px;
            left: 10px;
            z-index: 2;
            background: var(--color-amber);
            color: #1A1D22;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 8px;
            letter-spacing: 0.03em;
        }
        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 8px;
        }
        .card-tag {
            font-size: 0.7rem;
            background: #F0F2F5;
            color: #4A5058;
            padding: 3px 10px;
            border-radius: 12px;
            font-weight: 500;
            letter-spacing: 0.02em;
        }
        .card-tag.tag-amber {
            background: rgba(232, 179, 57, 0.14);
            color: #B8860B;
        }
        .card-title {
            font-size: 0.95rem;
            font-weight: 600;
            line-height: 1.45;
            color: #1A1D22;
            margin-bottom: 6px;
        }
        .card-desc {
            font-size: 0.82rem;
            color: #6B7280;
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.72rem;
            color: #9CA3AF;
        }
        .card-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .card-meta .meta-heat {
            color: #D97706;
            font-weight: 600;
        }

        /* Info flow cards */
        .info-flow-card {
            display: flex;
            gap: 12px;
            padding: 12px;
            border-radius: var(--radius-xl);
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-sm);
            align-items: flex-start;
        }
        .info-flow-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: rgba(232, 179, 57, 0.4);
        }
        .info-flow-card .flow-cover {
            width: 120px;
            height: 90px;
            border-radius: 10px;
            overflow: hidden;
            flex-shrink: 0;
            background: #EDF0F3;
        }
        .info-flow-card .flow-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .info-flow-card .flow-content {
            flex: 1;
            min-width: 0;
        }
        .info-flow-card .flow-title {
            font-size: 0.88rem;
            font-weight: 600;
            color: #1A1D22;
            line-height: 1.4;
            margin-bottom: 4px;
        }
        .info-flow-card .flow-desc {
            font-size: 0.78rem;
            color: #6B7280;
            line-height: 1.65;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .info-flow-card .flow-meta {
            font-size: 0.7rem;
            color: #9CA3AF;
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        /* Sidebar */
        .sidebar-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-2xl);
            padding: 18px 16px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 16px;
        }
        .sidebar-card .sidebar-title {
            font-size: 0.88rem;
            font-weight: 600;
            color: #1A1D22;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .sidebar-card .sidebar-title .dot {
            width: 6px;
            height: 6px;
            background: var(--color-amber);
            border-radius: 50%;
        }

        /* Scenario cards */
        .scenario-scroll {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding-bottom: 12px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: #C5CAD3 transparent;
        }
        .scenario-scroll::-webkit-scrollbar {
            height: 6px;
        }
        .scenario-scroll::-webkit-scrollbar-track {
            background: transparent;
        }
        .scenario-scroll::-webkit-scrollbar-thumb {
            background: #C5CAD3;
            border-radius: 6px;
        }
        .scenario-card {
            min-width: 280px;
            max-width: 300px;
            scroll-snap-align: start;
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-2xl);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
            flex-shrink: 0;
        }
        .scenario-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(232, 179, 57, 0.45);
        }
        .scenario-card .scenario-cover {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            border-radius: 0;
        }
        .scenario-card .scenario-body {
            padding: 14px 16px;
        }
        .scenario-card .scenario-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: #1A1D22;
            margin-bottom: 6px;
            line-height: 1.35;
        }
        .scenario-card .scenario-desc {
            font-size: 0.78rem;
            color: #6B7280;
            line-height: 1.65;
            margin-bottom: 8px;
        }
        .scenario-card .scenario-link {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--color-amber-dark);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .scenario-card .scenario-link:hover {
            text-decoration: underline;
        }

        /* Testimonial cards */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 18px;
        }
        .testimonial-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-2xl);
            padding: 18px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
            border-left: 3px solid transparent;
            position: relative;
        }
        .testimonial-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-left-color: var(--color-amber);
        }
        .testimonial-card .quote-mark {
            font-size: 2.5rem;
            color: rgba(232, 179, 57, 0.3);
            line-height: 1;
            margin-bottom: 6px;
            font-family: Georgia, serif;
        }
        .testimonial-card .quote-text {
            font-size: 0.85rem;
            color: #3D424D;
            line-height: 1.75;
            margin-bottom: 12px;
        }
        .testimonial-card .testimonial-footer {
            display: flex;
            align-items: center;
            gap: 10px;
            padding-top: 10px;
            border-top: 1px solid #F0F2F5;
        }
        .testimonial-card .avatar {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            overflow: hidden;
            flex-shrink: 0;
            background: #EDF0F3;
        }
        .testimonial-card .avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .testimonial-card .testimonial-info {
            flex: 1;
            min-width: 0;
        }
        .testimonial-card .testimonial-name {
            font-size: 0.82rem;
            font-weight: 600;
            color: #1A1D22;
        }
        .testimonial-card .testimonial-meta {
            font-size: 0.7rem;
            color: #9CA3AF;
            display: flex;
            gap: 8px;
        }

        /* Pricing table */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 18px;
            align-items: stretch;
        }
        .pricing-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-2xl);
            padding: 22px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            position: relative;
        }
        .pricing-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: rgba(232, 179, 57, 0.4);
        }
        .pricing-card.featured {
            border-color: var(--color-amber);
            box-shadow: 0 12px 32px rgba(232, 179, 57, 0.18);
            background: #FFFDF7;
        }
        .pricing-card .price-badge {
            display: inline-block;
            background: var(--color-amber);
            color: #1A1D22;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 12px;
            margin-bottom: 10px;
            letter-spacing: 0.03em;
        }
        .pricing-card .price-name {
            font-size: 0.95rem;
            font-weight: 700;
            color: #1A1D22;
            margin-bottom: 6px;
        }
        .pricing-card .price-amount {
            font-size: 1.8rem;
            font-weight: 700;
            color: #1A1D22;
            margin-bottom: 4px;
        }
        .pricing-card .price-amount .currency {
            font-size: 0.9rem;
            font-weight: 500;
            color: #6B7280;
        }
        .pricing-card .price-period {
            font-size: 0.75rem;
            color: #9CA3AF;
            margin-bottom: 14px;
        }
        .pricing-card .price-features {
            list-style: none;
            text-align: left;
            margin-bottom: 18px;
            flex: 1;
        }
        .pricing-card .price-features li {
            font-size: 0.8rem;
            color: #5A6270;
            line-height: 1.6;
            padding: 4px 0;
            display: flex;
            align-items: flex-start;
            gap: 6px;
            border-bottom: 1px solid #F0F2F5;
        }
        .pricing-card .price-features li:last-child {
            border-bottom: none;
        }
        .pricing-card .price-features li::before {
            content: "✓";
            color: var(--color-sage);
            font-weight: 700;
            flex-shrink: 0;
        }
        .pricing-card.featured .price-features li::before {
            color: var(--color-amber-dark);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-xl);
            padding: 16px 18px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: rgba(232, 179, 57, 0.4);
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.9rem;
            color: #1A1D22;
            line-height: 1.5;
            user-select: none;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 6px;
            background: #F0F2F5;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 700;
            color: #6B7280;
            transition: all var(--transition-base);
        }
        .faq-question.active .faq-icon {
            background: var(--color-amber);
            color: #1A1D22;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth);
            font-size: 0.85rem;
            color: #5A6270;
            line-height: 1.8;
        }
        .faq-answer.open {
            max-height: 400px;
        }
        .faq-answer .faq-answer-inner {
            padding-top: 10px;
            border-top: 1px solid #F0F2F5;
            margin-top: 8px;
        }

        /* News list */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 14px;
            border-radius: 10px;
            transition: all var(--transition-base);
            cursor: pointer;
            border-bottom: 1px solid #EDF0F3;
        }
        .news-item:hover {
            background: #FAFBFC;
            border-bottom-color: rgba(232, 179, 57, 0.4);
        }
        .news-item .news-date {
            font-size: 0.72rem;
            color: #9CA3AF;
            flex-shrink: 0;
            min-width: 52px;
            padding-top: 2px;
        }
        .news-item .news-content {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-title {
            font-size: 0.88rem;
            font-weight: 600;
            color: #1A1D22;
            line-height: 1.45;
            margin-bottom: 3px;
        }
        .news-item .news-summary {
            font-size: 0.8rem;
            color: #6B7280;
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* Partner tags */
        .partner-tags-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 12px;
        }
        .partner-tag-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-xl);
            padding: 14px 16px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
        }
        .partner-tag-card:hover {
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
            border-color: rgba(232, 179, 57, 0.4);
        }
        .partner-tag-card .partner-name {
            font-size: 0.82rem;
            font-weight: 700;
            color: #1A1D22;
            margin-bottom: 4px;
        }
        .partner-tag-card .partner-desc {
            font-size: 0.75rem;
            color: #6B7280;
            line-height: 1.6;
        }

        /* Brand intro */
        .brand-intro-section {
            background: var(--color-charcoal);
            border-radius: var(--radius-2xl);
            padding: 28px 24px;
            color: #D1D5DB;
            position: relative;
            overflow: hidden;
        }
        .brand-intro-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            background: rgba(232, 179, 57, 0.06);
            border-radius: 50%;
            pointer-events: none;
        }
        .brand-intro-section .brand-intro-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .brand-intro-section .brand-intro-text {
            font-size: 0.88rem;
            color: #C5CAD3;
            line-height: 1.85;
            position: relative;
            z-index: 1;
        }

        /* CTA section */
        .cta-section {
            background: var(--color-charcoal);
            padding: 48px 24px;
            border-radius: var(--radius-2xl);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(232, 179, 57, 0.08) 0%, transparent 55%);
            pointer-events: none;
        }
        .cta-section .cta-title {
            position: relative;
            z-index: 1;
            font-size: 1.4rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 8px;
        }
        .cta-section .cta-desc {
            position: relative;
            z-index: 1;
            font-size: 0.9rem;
            color: #C5CAD3;
            max-width: 480px;
            margin: 0 auto 20px;
            line-height: 1.7;
        }
        .cta-section .btn {
            position: relative;
            z-index: 1;
        }

        /* Footer */
        .site-footer {
            background: var(--color-charcoal-dark);
            color: #9CA3AF;
            padding-top: 40px;
            padding-bottom: 20px;
            border-top: 1px solid var(--color-border-dark);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 28px;
        }
        .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand .footer-logo-dot {
            width: 8px;
            height: 8px;
            background: var(--color-amber);
            border-radius: 50%;
            display: inline-block;
        }
        .footer-desc {
            font-size: 0.8rem;
            color: #7A8290;
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .footer-heading {
            font-size: 0.85rem;
            font-weight: 600;
            color: #E5E7EB;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .footer-links a {
            font-size: 0.8rem;
            color: #7A8290;
            transition: color var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .footer-links a:hover {
            color: var(--color-amber);
        }
        .footer-form {
            display: flex;
            gap: 8px;
            margin-top: 8px;
        }
        .footer-form input {
            flex: 1;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid #3A3F48;
            border-radius: 8px;
            padding: 10px 12px;
            font-size: 0.8rem;
            color: #E5E7EB;
            outline: none;
            min-width: 0;
        }
        .footer-form input::placeholder {
            color: #6B7280;
        }
        .footer-form input:focus {
            border-color: var(--color-amber);
        }
        .footer-form .btn {
            flex-shrink: 0;
            min-height: 40px;
            padding: 10px 16px;
            font-size: 0.8rem;
        }
        .footer-bottom {
            border-top: 1px solid #2A2F38;
            padding-top: 16px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            font-size: 0.72rem;
            color: #6B7280;
        }
        .footer-bottom .footer-legal-links {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .footer-bottom a {
            color: #6B7280;
        }
        .footer-bottom a:hover {
            color: var(--color-amber);
        }

        /* Table-like rows for latest updates */
        .update-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 14px;
            border-bottom: 1px solid #EDF0F3;
            font-size: 0.8rem;
            gap: 10px;
            flex-wrap: wrap;
        }
        .update-row:last-child {
            border-bottom: none;
        }
        .update-row .update-label {
            font-weight: 600;
            color: #1A1D22;
        }
        .update-row .update-time {
            color: #9CA3AF;
            font-size: 0.72rem;
        }
        .update-row .update-status {
            display: inline-block;
            padding: 2px 8px;
            border-radius: 10px;
            font-size: 0.7rem;
            font-weight: 600;
            background: rgba(58, 125, 112, 0.12);
            color: var(--color-sage);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero-section {
                min-height: auto;
                padding-top: calc(var(--header-height) + 32px);
                padding-bottom: 48px;
            }
            .hero-title {
                font-size: 2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            .nav-links-desktop {
                display: none;
            }
            .nav-actions-desktop .btn-secondary {
                display: none;
            }
            .mobile-nav-toggle {
                display: flex;
            }
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-subtitle {
                font-size: 0.92rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
                max-width: 420px;
                margin: 0 auto;
            }
            .section {
                padding-top: 2.2rem;
                padding-bottom: 2.2rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .info-flow-card {
                flex-direction: column;
            }
            .info-flow-card .flow-cover {
                width: 100%;
                height: 140px;
            }
            .partner-tags-grid {
                grid-template-columns: 1fr 1fr;
            }
            .update-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
            .hero-card {
                padding: 14px 12px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .btn-lg {
                padding: 12px 18px;
                min-height: 44px;
                font-size: 0.85rem;
            }
            .hero-cta-group {
                gap: 8px;
            }
            .hero-cta-group .btn {
                flex: 1;
                min-width: 0;
                padding: 10px 14px;
                font-size: 0.8rem;
            }
            .partner-tags-grid {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 1.45rem;
            }
            .hero-topic-tags {
                gap: 6px;
            }
            .hero-topic-tag {
                font-size: 0.7rem;
                padding: 4px 8px;
            }
            .section-title {
                font-size: 1.2rem;
            }
            .footer-form {
                flex-direction: column;
            }
            .footer-form .btn {
                width: 100%;
            }
        }

/* roulang page: category1 */
:root {
            --color-charcoal: #171A21;
            --color-charcoal-dark: #0F1117;
            --color-amber: #E8B339;
            --color-amber-dark: #D09D2E;
            --color-mist: #A8B3C0;
            --color-bg-light: #F5F6F8;
            --color-surface: #FFFFFF;
            --color-surface-dark: #1D2027;
            --color-border-light: #E3E6EA;
            --color-border-dark: #2A2F38;
            --color-sage: #3A7D70;
            --radius-xl: 12px;
            --radius-2xl: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 10px 24px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.16);
            --transition-base: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --header-height: 68px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.85;
            color: #2D3138;
            background-color: var(--color-bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-amber);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-base);
        }
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 14px;
            color: #2D3138;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: var(--header-height);
            background: rgba(23, 26, 33, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border-dark);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.18);
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }
        .logo-text {
            font-size: 1.55rem;
            font-weight: 700;
            letter-spacing: 0.01em;
            color: #FFFFFF;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .logo-text .logo-dot {
            width: 10px;
            height: 10px;
            background: var(--color-amber);
            border-radius: 50%;
            display: inline-block;
            flex-shrink: 0;
            animation: logoPulse 3s ease-in-out infinite;
        }
        @keyframes logoPulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.6; transform: scale(0.85); }
        }
        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: #D1D5DB;
            border-radius: 8px;
            letter-spacing: 0.01em;
            position: relative;
            transition: color var(--transition-base), background-color var(--transition-base);
        }
        .nav-link:hover {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-link.active {
            color: var(--color-amber);
            background: rgba(232, 179, 57, 0.12);
        }
        .nav-link .nav-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: currentColor;
            opacity: 0.5;
            flex-shrink: 0;
        }
        .nav-actions-desktop {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 0.875rem;
            border-radius: 10px;
            padding: 12px 22px;
            min-height: 44px;
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: var(--color-amber);
            color: #1A1D22;
            box-shadow: 0 4px 14px rgba(232, 179, 57, 0.3);
        }
        .btn-primary:hover {
            background: var(--color-amber-dark);
            box-shadow: 0 6px 20px rgba(232, 179, 57, 0.4);
            transform: translateY(-1px) scale(0.99);
        }
        .btn-primary:active {
            transform: scale(0.97);
            box-shadow: 0 2px 8px rgba(232, 179, 57, 0.25);
        }
        .btn-secondary {
            background: transparent;
            color: #D1D5DB;
            border: 1px solid #4A5058;
            box-shadow: none;
        }
        .btn-secondary:hover {
            border-color: var(--color-amber);
            color: var(--color-amber);
            background: rgba(232, 179, 57, 0.08);
        }
        .btn-sm {
            padding: 8px 16px;
            min-height: 36px;
            font-size: 0.8rem;
        }
        .mobile-nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            margin-left: auto;
            background: transparent;
            border: none;
            cursor: pointer;
            z-index: 110;
        }
        .mobile-nav-toggle .bar {
            width: 24px;
            height: 2px;
            background: #FFFFFF;
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .mobile-nav-toggle[aria-expanded="true"] .bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .mobile-nav-toggle[aria-expanded="true"] .bar:nth-child(2) {
            opacity: 0;
        }
        .mobile-nav-toggle[aria-expanded="true"] .bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            position: absolute;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: var(--color-charcoal);
            border-bottom: 1px solid var(--color-border-dark);
            padding: 16px 24px 24px;
            flex-direction: column;
            gap: 6px;
            z-index: 99;
            box-shadow: 0 16px 32px rgba(0, 0, 0, 0.3);
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu .nav-link {
            padding: 12px 16px;
            width: 100%;
            border-radius: 8px;
            font-size: 0.95rem;
        }
        .breadcrumb-section {
            background: #FFFFFF;
            border-bottom: 1px solid var(--color-border-light);
            padding: 14px 0;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 0.82rem;
            color: var(--color-mist);
        }
        .breadcrumb-nav a {
            color: #5A6572;
            transition: color var(--transition-base);
        }
        .breadcrumb-nav a:hover {
            color: var(--color-amber-dark);
        }
        .breadcrumb-nav .separator {
            color: #B0B7C0;
        }
        .breadcrumb-nav .current {
            color: #2D3138;
            font-weight: 500;
        }
        .category-hero {
            background: var(--color-charcoal);
            position: relative;
            overflow: hidden;
        }
        .category-hero .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
        }
        .category-hero .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(23,26,33,0.7) 0%, rgba(23,26,33,0.9) 100%);
        }
        .category-hero .hero-content {
            position: relative;
            z-index: 2;
            padding: 4rem 0 3rem;
        }
        .category-badge-row {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 999px;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
        }
        .badge-amber {
            background: rgba(232, 179, 57, 0.15);
            color: var(--color-amber);
            border: 1px solid rgba(232, 179, 57, 0.35);
        }
        .badge-dark {
            background: rgba(168, 179, 192, 0.15);
            color: #D1D5DB;
            border: 1px solid rgba(168, 179, 192, 0.3);
        }
        .category-hero h1 {
            font-size: 2.25rem;
            font-weight: 700;
            line-height: 1.25;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .category-hero .hero-desc {
            font-size: 1rem;
            line-height: 1.8;
            color: #C5CDD6;
            max-width: 760px;
            margin-bottom: 24px;
        }
        .hero-stats-row {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
        }
        .hero-stat {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #C5CDD6;
            font-size: 0.85rem;
        }
        .hero-stat .stat-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(232, 179, 57, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-amber);
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .category-main {
            padding: 2.5rem 0 3rem;
        }
        .category-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 28px;
            align-items: start;
        }
        .filter-toolbar {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-xl);
            padding: 14px 18px;
            margin-bottom: 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-sm);
        }
        .filter-tabs {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .filter-tab {
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 500;
            color: #5A6572;
            border-radius: 8px;
            background: transparent;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .filter-tab:hover {
            color: var(--color-charcoal);
            background: var(--color-bg-light);
        }
        .filter-tab.active {
            background: var(--color-amber);
            color: #1A1D22;
            border-color: var(--color-amber);
            font-weight: 600;
        }
        .filter-tab .tab-count {
            display: inline-block;
            background: rgba(0,0,0,0.08);
            border-radius: 999px;
            padding: 0 8px;
            font-size: 0.72rem;
            margin-left: 4px;
        }
        .filter-sort {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .sort-select {
            padding: 8px 32px 8px 14px;
            font-size: 0.85rem;
            border: 1px solid var(--color-border-light);
            border-radius: 8px;
            background: #FFFFFF url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%235A6572' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 12px center;
            appearance: none;
            cursor: pointer;
            color: #2D3138;
        }
        .sort-select:focus {
            border-color: var(--color-amber);
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
        }
        .announcement-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-2xl);
            overflow: hidden;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-sm);
            position: relative;
        }
        .announcement-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-amber);
        }
        .announcement-card .card-cover {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            border-bottom: 1px solid var(--color-border-light);
        }
        .announcement-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .announcement-card:hover .card-cover img {
            transform: scale(1.03);
        }
        .announcement-card .card-cover .cover-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
        }
        .announcement-card .card-body {
            padding: 18px 20px 20px;
        }
        .announcement-card .card-tag-row {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 3px 12px;
            font-size: 0.72rem;
            font-weight: 600;
            border-radius: 999px;
            letter-spacing: 0.02em;
            background: var(--color-bg-light);
            color: #5A6572;
            border: 1px solid var(--color-border-light);
        }
        .tag-hot {
            background: rgba(232, 179, 57, 0.12);
            color: var(--color-amber-dark);
            border-color: rgba(232, 179, 57, 0.4);
        }
        .tag-sage {
            background: rgba(58, 125, 112, 0.12);
            color: var(--color-sage);
            border-color: rgba(58, 125, 112, 0.3);
        }
        .announcement-card h3 {
            font-size: 1.05rem;
            font-weight: 650;
            line-height: 1.4;
            color: #1E2228;
            margin-bottom: 8px;
            letter-spacing: 0.01em;
        }
        .announcement-card .card-summary {
            font-size: 0.88rem;
            line-height: 1.7;
            color: #5A6572;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .announcement-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.78rem;
            color: var(--color-mist);
            flex-wrap: wrap;
        }
        .announcement-card .card-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .announcement-card .card-meta .meta-item i {
            font-size: 0.75rem;
            opacity: 0.7;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 22px;
        }
        .sidebar-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-xl);
            padding: 20px;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h3 {
            font-size: 1rem;
            font-weight: 650;
            color: #1E2228;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }
        .hot-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .hot-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 10px;
            border-radius: 8px;
            transition: background var(--transition-base);
        }
        .hot-item:hover {
            background: var(--color-bg-light);
        }
        .hot-item .hot-rank {
            width: 26px;
            height: 26px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 700;
            flex-shrink: 0;
            background: var(--color-bg-light);
            color: #5A6572;
        }
        .hot-item .hot-rank.rank-1 {
            background: rgba(232, 179, 57, 0.2);
            color: var(--color-amber-dark);
        }
        .hot-item .hot-rank.rank-2 {
            background: rgba(168, 179, 192, 0.2);
            color: #5A6572;
        }
        .hot-item .hot-rank.rank-3 {
            background: rgba(58, 125, 112, 0.15);
            color: var(--color-sage);
        }
        .hot-item .hot-title {
            font-size: 0.85rem;
            font-weight: 500;
            color: #2D3138;
            line-height: 1.4;
            flex: 1;
        }
        .hot-item .hot-count {
            font-size: 0.72rem;
            color: var(--color-mist);
            white-space: nowrap;
        }
        .sidebar-subscribe {
            background: var(--color-charcoal);
            border: none;
            color: #FFFFFF;
            border-radius: var(--radius-xl);
            padding: 24px 20px;
        }
        .sidebar-subscribe h3 {
            color: #FFFFFF;
        }
        .sidebar-subscribe p {
            font-size: 0.85rem;
            color: #C5CDD6;
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .sidebar-subscribe .footer-form {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .sidebar-subscribe input {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid var(--color-border-dark);
            color: #FFFFFF;
            padding: 10px 14px;
            border-radius: 8px;
            width: 100%;
        }
        .sidebar-subscribe input::placeholder {
            color: #7A8494;
        }
        .sidebar-subscribe input:focus {
            border-color: var(--color-amber);
            outline: none;
        }
        .sidebar-subscribe .btn {
            width: 100%;
        }
        .pagination-section {
            margin-top: 28px;
            display: flex;
            justify-content: center;
        }
        .pagination {
            display: flex;
            align-items: center;
            gap: 6px;
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-xl);
            padding: 8px 14px;
            box-shadow: var(--shadow-sm);
        }
        .pagination a,
        .pagination span.page-current,
        .pagination button {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 38px;
            height: 38px;
            padding: 0 10px;
            font-size: 0.85rem;
            font-weight: 500;
            border-radius: 8px;
            color: #5A6572;
            transition: all var(--transition-base);
        }
        .pagination a:hover {
            background: var(--color-bg-light);
            color: var(--color-charcoal);
        }
        .pagination .page-current {
            background: var(--color-amber);
            color: #1A1D22;
            font-weight: 700;
            box-shadow: 0 2px 8px rgba(232, 179, 57, 0.3);
        }
        .pagination .page-dots {
            color: var(--color-mist);
            padding: 0 4px;
        }
        .site-footer {
            background: var(--color-charcoal);
            color: #C5CDD6;
            padding: 4rem 0 1.5rem;
            border-top: 1px solid var(--color-border-dark);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 36px;
            margin-bottom: 2.5rem;
        }
        .footer-brand {
            font-size: 1.4rem;
            font-weight: 700;
            color: #FFFFFF;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 14px;
        }
        .footer-logo-dot {
            width: 10px;
            height: 10px;
            background: var(--color-amber);
            border-radius: 50%;
            display: inline-block;
        }
        .footer-desc {
            font-size: 0.85rem;
            color: #A8B3C0;
            line-height: 1.75;
            margin-bottom: 8px;
        }
        .footer-heading {
            font-size: 0.95rem;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a {
            font-size: 0.85rem;
            color: #A8B3C0;
            transition: color var(--transition-base);
        }
        .footer-links a:hover {
            color: var(--color-amber);
        }
        .footer-form {
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .footer-form input {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--color-border-dark);
            color: #FFFFFF;
            padding: 10px 14px;
            border-radius: 8px;
            flex: 1;
            min-width: 0;
        }
        .footer-form input::placeholder {
            color: #7A8494;
        }
        .footer-form input:focus {
            border-color: var(--color-amber);
            outline: none;
        }
        .footer-bottom {
            border-top: 1px solid var(--color-border-dark);
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            font-size: 0.75rem;
            color: #7A8494;
        }
        .footer-legal-links {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: auto;
        }
        .footer-legal-links a {
            color: #7A8494;
            transition: color var(--transition-base);
        }
        .footer-legal-links a:hover {
            color: var(--color-amber);
        }
        @media (max-width: 1024px) {
            .nav-links-desktop {
                gap: 2px;
            }
            .nav-link {
                padding: 8px 10px;
                font-size: 0.82rem;
            }
            .category-layout {
                grid-template-columns: 1fr;
            }
            .sidebar {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 16px;
            }
            .sidebar-card {
                flex: 1;
                min-width: 260px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .nav-links-desktop {
                display: none !important;
            }
            .nav-actions-desktop {
                display: none !important;
            }
            .mobile-nav-toggle {
                display: flex;
            }
            .category-hero h1 {
                font-size: 1.7rem;
            }
            .category-hero .hero-content {
                padding: 2.5rem 0 2rem;
            }
            .hero-stats-row {
                gap: 14px;
            }
            .category-main {
                padding: 1.5rem 0 2rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .filter-sort {
                width: 100%;
            }
            .sort-select {
                width: 100%;
            }
            .sidebar {
                flex-direction: column;
            }
            .sidebar-card {
                min-width: auto;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .footer-legal-links {
                margin-left: 0;
            }
            .footer-form {
                flex-direction: column;
                align-items: stretch;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .category-hero h1 {
                font-size: 1.4rem;
            }
            .category-hero .hero-desc {
                font-size: 0.9rem;
            }
            .filter-tab {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
            .pagination {
                padding: 6px 8px;
                gap: 3px;
            }
            .pagination a,
            .pagination span.page-current,
            .pagination button {
                min-width: 32px;
                height: 32px;
                font-size: 0.78rem;
                padding: 0 6px;
            }
            .announcement-card h3 {
                font-size: 0.95rem;
            }
            .announcement-card .card-summary {
                font-size: 0.82rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-charcoal: #171A21;
            --color-charcoal-dark: #0F1117;
            --color-amber: #E8B339;
            --color-amber-dark: #D09D2E;
            --color-mist: #A8B3C0;
            --color-bg-light: #F5F6F8;
            --color-surface: #FFFFFF;
            --color-surface-dark: #1D2027;
            --color-border-light: #E3E6EA;
            --color-border-dark: #2A2F38;
            --color-sage: #3A7D70;
            --radius-xl: 12px;
            --radius-2xl: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 10px 24px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.16);
            --transition-base: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --header-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.85;
            color: #2D3138;
            background-color: var(--color-bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-amber);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-base);
        }

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 14px;
            color: #2D3138;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: var(--header-height);
            background: rgba(23, 26, 33, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border-dark);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.18);
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }

        .logo-text {
            font-size: 1.55rem;
            font-weight: 700;
            letter-spacing: 0.01em;
            color: #FFFFFF;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .logo-text .logo-dot {
            width: 10px;
            height: 10px;
            background: var(--color-amber);
            border-radius: 50%;
            display: inline-block;
            flex-shrink: 0;
            animation: logoPulse 3s ease-in-out infinite;
        }

        @keyframes logoPulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.6; transform: scale(0.85); }
        }

        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 12px;
            font-size: 0.875rem;
            font-weight: 500;
            color: #D1D5DB;
            border-radius: 8px;
            letter-spacing: 0.01em;
            position: relative;
            transition: color var(--transition-base), background-color var(--transition-base);
            white-space: nowrap;
        }

        .nav-link:hover {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-link.active {
            color: var(--color-amber);
            background: rgba(232, 179, 57, 0.12);
        }

        .nav-link .nav-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: currentColor;
            opacity: 0.5;
            flex-shrink: 0;
        }

        .nav-actions-desktop {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 0.875rem;
            border-radius: 10px;
            padding: 12px 22px;
            min-height: 44px;
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background: var(--color-amber);
            color: #1A1D22;
            box-shadow: 0 4px 14px rgba(232, 179, 57, 0.3);
        }

        .btn-primary:hover {
            background: var(--color-amber-dark);
            box-shadow: 0 6px 20px rgba(232, 179, 57, 0.4);
            transform: translateY(-1px) scale(0.99);
        }

        .btn-primary:active {
            transform: scale(0.97);
            box-shadow: 0 2px 8px rgba(232, 179, 57, 0.25);
        }

        .btn-secondary {
            background: transparent;
            color: #D1D5DB;
            border: 1px solid #4A5058;
            box-shadow: none;
        }

        .btn-secondary:hover {
            border-color: var(--color-amber);
            color: var(--color-amber);
            background: rgba(232, 179, 57, 0.08);
        }

        .btn-sm {
            padding: 8px 16px;
            min-height: 36px;
            font-size: 0.8rem;
            border-radius: 8px;
        }

        .mobile-nav-toggle {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 8px;
            border-radius: 6px;
            background: rgba(255, 255, 255, 0.06);
        }

        .mobile-nav-toggle .bar {
            width: 22px;
            height: 2px;
            background: #D1D5DB;
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .mobile-menu {
            display: none;
            background: rgba(23, 26, 33, 0.98);
            border-bottom: 1px solid var(--color-border-dark);
            flex-direction: column;
            padding: 12px 20px 20px;
            gap: 4px;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            z-index: 99;
            max-height: calc(100vh - var(--header-height));
            overflow-y: auto;
            box-shadow: var(--shadow-lg);
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu .nav-link {
            padding: 12px 14px;
            font-size: 0.95rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 8px;
        }

        @media (max-width: 1024px) {
            .nav-links-desktop {
                gap: 0;
            }
            .nav-link {
                padding: 8px 8px;
                font-size: 0.8rem;
            }
            .nav-actions-desktop .btn-secondary {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .nav-links-desktop {
                display: none;
            }
            .nav-actions-desktop {
                display: none;
            }
            .mobile-nav-toggle {
                display: flex;
            }
            .header-inner {
                gap: 8px;
            }
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--color-mist);
            margin-bottom: 12px;
        }

        .breadcrumb a {
            color: var(--color-mist);
            transition: color var(--transition-base);
        }

        .breadcrumb a:hover {
            color: var(--color-amber);
        }

        .breadcrumb .separator {
            opacity: 0.5;
            font-size: 0.7rem;
        }

        .breadcrumb .current {
            color: #2D3138;
            font-weight: 500;
        }

        /* Category Page Header */
        .category-header {
            background: var(--color-charcoal);
            padding: 48px 0 56px;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--color-border-dark);
        }

        .category-header::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            z-index: 0;
        }

        .category-header::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(23, 26, 33, 0.95) 0%, rgba(23, 26, 33, 0.75) 50%, rgba(23, 26, 33, 0.55) 100%);
            z-index: 1;
        }

        .category-header .container {
            position: relative;
            z-index: 2;
        }

        .category-header .breadcrumb {
            margin-bottom: 16px;
        }

        .category-header .breadcrumb a {
            color: rgba(255, 255, 255, 0.6);
        }

        .category-header .breadcrumb .current {
            color: var(--color-amber);
        }

        .category-header h1 {
            font-size: 2.25rem;
            font-weight: 700;
            color: #FFFFFF;
            line-height: 1.25;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .category-header .category-desc {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 20px;
        }

        .category-header-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
        }

        .category-header-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .category-header-meta i {
            color: var(--color-amber);
            font-size: 0.8rem;
        }

        /* Filter Toolbar */
        .filter-toolbar {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-xl);
            padding: 16px 20px;
            margin-top: -28px;
            margin-bottom: 32px;
            position: relative;
            z-index: 5;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .filter-group {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .filter-label {
            font-size: 0.8rem;
            font-weight: 600;
            color: #6B7280;
            margin-right: 4px;
            white-space: nowrap;
        }

        .filter-tab {
            padding: 7px 14px;
            font-size: 0.8rem;
            font-weight: 500;
            color: #4B5563;
            border-radius: 20px;
            border: 1px solid var(--color-border-light);
            background: #FFFFFF;
            transition: all var(--transition-base);
            white-space: nowrap;
            cursor: pointer;
        }

        .filter-tab:hover {
            border-color: var(--color-amber);
            color: var(--color-amber-dark);
            background: rgba(232, 179, 57, 0.06);
        }

        .filter-tab.active {
            background: var(--color-amber);
            color: #1A1D22;
            border-color: var(--color-amber);
            font-weight: 600;
        }

        /* Resource Card Grid */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-bottom: 32px;
        }

        @media (max-width: 1024px) {
            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .resource-grid {
                grid-template-columns: 1fr;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        .resource-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-xl);
            overflow: hidden;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }

        .resource-card:hover {
            transform: translateY(-3px);
            border-color: rgba(232, 179, 57, 0.5);
            box-shadow: var(--shadow-lg);
        }

        .resource-card .card-image {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
            background: #F0F1F3;
        }

        .resource-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .resource-card:hover .card-image img {
            transform: scale(1.05);
        }

        .resource-card .card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-tag-row {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 10px;
        }

        .card-tag {
            display: inline-block;
            padding: 3px 10px;
            font-size: 0.72rem;
            font-weight: 600;
            border-radius: 14px;
            background: rgba(232, 179, 57, 0.1);
            color: #A07820;
            letter-spacing: 0.02em;
        }

        .card-tag.hot-tag {
            background: rgba(232, 179, 57, 0.2);
            color: #8B6914;
        }

        .resource-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            line-height: 1.4;
            color: #1F2329;
            margin-bottom: 8px;
        }

        .resource-card h3 a:hover {
            color: var(--color-amber-dark);
        }

        .resource-card .card-summary {
            font-size: 0.85rem;
            color: #6B7280;
            line-height: 1.7;
            flex: 1;
            margin-bottom: 12px;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.75rem;
            color: #9CA3AF;
            padding-top: 12px;
            border-top: 1px solid var(--color-border-light);
        }

        .card-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .card-meta i {
            font-size: 0.7rem;
            opacity: 0.7;
        }

        /* Sidebar */
        .sidebar-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-xl);
            padding: 20px;
            margin-bottom: 20px;
            box-shadow: var(--shadow-sm);
        }

        .sidebar-card .sidebar-heading {
            font-size: 1rem;
            font-weight: 600;
            color: #1F2329;
            margin-bottom: 14px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--color-border-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card .sidebar-heading i {
            color: var(--color-amber);
            font-size: 0.9rem;
        }

        .hot-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid #F0F1F3;
            transition: background-color var(--transition-base);
            border-radius: 6px;
            padding-left: 8px;
            padding-right: 8px;
        }

        .hot-item:hover {
            background: #F8F9FA;
        }

        .hot-item:last-child {
            border-bottom: none;
        }

        .hot-rank {
            width: 24px;
            height: 24px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.72rem;
            font-weight: 700;
            flex-shrink: 0;
            background: #F3F4F6;
            color: #9CA3AF;
        }

        .hot-rank.top-1 {
            background: rgba(232, 179, 57, 0.15);
            color: #A07820;
        }

        .hot-rank.top-2 {
            background: rgba(232, 179, 57, 0.08);
            color: #B8892A;
        }

        .hot-rank.top-3 {
            background: rgba(232, 179, 57, 0.05);
            color: #C99735;
        }

        .hot-item .hot-info {
            flex: 1;
            min-width: 0;
        }

        .hot-item .hot-title {
            font-size: 0.82rem;
            font-weight: 500;
            color: #4B5563;
            line-height: 1.4;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            transition: color var(--transition-base);
        }

        .hot-item:hover .hot-title {
            color: var(--color-amber-dark);
        }

        .hot-item .hot-meta {
            font-size: 0.7rem;
            color: #9CA3AF;
            margin-top: 2px;
        }

        /* Subscribe Box */
        .subscribe-box {
            background: var(--color-charcoal);
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-xl);
            padding: 20px;
            color: #FFFFFF;
        }

        .subscribe-box .sidebar-heading {
            color: #FFFFFF;
            border-bottom-color: var(--color-border-dark);
        }

        .subscribe-box p {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .subscribe-form {
            display: flex;
            gap: 8px;
            flex-direction: column;
        }

        .subscribe-form input {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--color-border-dark);
            border-radius: 8px;
            padding: 10px 14px;
            color: #FFFFFF;
            font-size: 0.85rem;
            width: 100%;
            transition: all var(--transition-base);
        }

        .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }

        .subscribe-form input:focus {
            border-color: var(--color-amber);
            outline: none;
            background: rgba(255, 255, 255, 0.12);
        }

        .subscribe-form .btn {
            width: 100%;
            justify-content: center;
        }

        /* Pagination */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 20px 0 10px;
            flex-wrap: wrap;
        }

        .pagination .page-btn {
            min-width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            font-size: 0.85rem;
            font-weight: 500;
            color: #4B5563;
            border: 1px solid var(--color-border-light);
            background: #FFFFFF;
            transition: all var(--transition-base);
            cursor: pointer;
            padding: 0 10px;
        }

        .pagination .page-btn:hover {
            border-color: var(--color-amber);
            color: var(--color-amber-dark);
            background: rgba(232, 179, 57, 0.06);
        }

        .pagination .page-btn.active {
            background: var(--color-amber);
            color: #1A1D22;
            border-color: var(--color-amber);
            font-weight: 700;
        }

        .pagination .page-btn.disabled {
            opacity: 0.4;
            cursor: not-allowed;
            pointer-events: none;
        }

        /* Stats Section */
        .stats-section {
            background: var(--color-charcoal-dark);
            padding: 48px 0;
            border-top: 1px solid var(--color-border-dark);
            border-bottom: 1px solid var(--color-border-dark);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }

        .stat-item {
            text-align: center;
            padding: 20px;
        }

        .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-amber);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.6);
            letter-spacing: 0.02em;
        }

        /* FAQ Section */
        .faq-section {
            padding: 56px 0;
            background: var(--color-surface);
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
        }

        .faq-section h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #1F2329;
            margin-bottom: 28px;
            text-align: center;
        }

        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-xl);
            margin-bottom: 12px;
            overflow: hidden;
            background: #FFFFFF;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(232, 179, 57, 0.4);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: #1F2329;
            gap: 12px;
            transition: color var(--transition-base);
            user-select: none;
        }

        .faq-question:hover {
            color: var(--color-amber-dark);
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            flex-shrink: 0;
            background: #F3F4F6;
            color: #6B7280;
            transition: all var(--transition-base);
        }

        .faq-item.open .faq-question .faq-icon {
            background: var(--color-amber);
            color: #1A1D22;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 0.88rem;
            color: #6B7280;
            line-height: 1.8;
        }

        /* CTA Section */
        .cta-section {
            padding: 56px 0;
            background: var(--color-charcoal);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            z-index: 0;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }

        .cta-buttons {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: var(--color-charcoal-dark);
            padding: 48px 0 24px;
            border-top: 1px solid var(--color-border-dark);
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 600px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #FFFFFF;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }

        .footer-logo-dot {
            width: 8px;
            height: 8px;
            background: var(--color-amber);
            border-radius: 50%;
            display: inline-block;
        }

        .footer-desc {
            font-size: 0.82rem;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-heading {
            font-size: 0.95rem;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--color-amber);
        }

        .footer-form {
            display: flex;
            gap: 8px;
        }

        .footer-form input {
            flex: 1;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--color-border-dark);
            border-radius: 8px;
            padding: 10px 12px;
            color: #FFFFFF;
            font-size: 0.8rem;
            min-width: 0;
        }

        .footer-form input::placeholder {
            color: rgba(255, 255, 255, 0.35);
        }

        .footer-form input:focus {
            border-color: var(--color-amber);
            outline: none;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid var(--color-border-dark);
            font-size: 0.72rem;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-legal-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-legal-links a {
            color: rgba(255, 255, 255, 0.4);
            transition: color var(--transition-base);
        }

        .footer-legal-links a:hover {
            color: var(--color-amber);
        }

        /* Main Content Layout */
        .category-main {
            padding: 32px 0 16px;
            background: var(--color-bg-light);
        }

        .category-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 24px;
            align-items: start;
        }

        @media (max-width: 1024px) {
            .category-layout {
                grid-template-columns: 1fr;
            }
        }

        .category-main-content {
            min-width: 0;
        }

        .category-sidebar {
            position: sticky;
            top: calc(var(--header-height) + 20px);
        }

        @media (max-width: 1024px) {
            .category-sidebar {
                position: static;
                order: 2;
            }
            .category-main-content {
                order: 1;
            }
        }

        /* Responsive category header */
        @media (max-width: 768px) {
            .category-header {
                padding: 32px 0 40px;
            }
            .category-header h1 {
                font-size: 1.5rem;
            }
            .category-header .category-desc {
                font-size: 0.9rem;
            }
            .filter-toolbar {
                padding: 12px 14px;
            }
            .resource-card h3 {
                font-size: 0.95rem;
            }
        }

/* roulang page: category3 */
:root {
            --color-charcoal: #171A21;
            --color-charcoal-dark: #0F1117;
            --color-amber: #E8B339;
            --color-amber-dark: #D09D2E;
            --color-mist: #A8B3C0;
            --color-bg-light: #F5F6F8;
            --color-surface: #FFFFFF;
            --color-surface-dark: #1D2027;
            --color-border-light: #E3E6EA;
            --color-border-dark: #2A2F38;
            --color-sage: #3A7D70;
            --radius-xl: 12px;
            --radius-2xl: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 10px 24px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.16);
            --transition-base: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --header-height: 68px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.85;
            color: #2D3138;
            background-color: var(--color-bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-amber);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-base);
        }
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 14px;
            color: #2D3138;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: var(--header-height);
            background: rgba(23, 26, 33, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border-dark);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.18);
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }
        .logo-text {
            font-size: 1.55rem;
            font-weight: 700;
            letter-spacing: 0.01em;
            color: #FFFFFF;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .logo-text .logo-dot {
            width: 10px;
            height: 10px;
            background: var(--color-amber);
            border-radius: 50%;
            display: inline-block;
            flex-shrink: 0;
            animation: logoPulse 3s ease-in-out infinite;
        }
        @keyframes logoPulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.6; transform: scale(0.85); }
        }
        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: #D1D5DB;
            border-radius: 8px;
            letter-spacing: 0.01em;
            position: relative;
            transition: color var(--transition-base), background-color var(--transition-base);
        }
        .nav-link:hover {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-link.active {
            color: var(--color-amber);
            background: rgba(232, 179, 57, 0.12);
        }
        .nav-link .nav-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: currentColor;
            opacity: 0.5;
            flex-shrink: 0;
        }
        .nav-actions-desktop {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 0.875rem;
            border-radius: 10px;
            padding: 12px 22px;
            min-height: 44px;
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: var(--color-amber);
            color: #1A1D22;
            box-shadow: 0 4px 14px rgba(232, 179, 57, 0.3);
        }
        .btn-primary:hover {
            background: var(--color-amber-dark);
            box-shadow: 0 6px 20px rgba(232, 179, 57, 0.4);
            transform: translateY(-1px) scale(0.99);
        }
        .btn-primary:active {
            transform: scale(0.97);
            box-shadow: 0 2px 8px rgba(232, 179, 57, 0.25);
        }
        .btn-secondary {
            background: transparent;
            color: #D1D5DB;
            border: 1px solid #4A5058;
            box-shadow: none;
        }
        .btn-secondary:hover {
            border-color: var(--color-amber);
            color: var(--color-amber);
            background: rgba(232, 179, 57, 0.08);
        }
        .btn-sm {
            padding: 8px 16px;
            min-height: 36px;
            font-size: 0.8rem;
            border-radius: 8px;
        }
        .mobile-nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 6px;
            background: rgba(255, 255, 255, 0.06);
            cursor: pointer;
        }
        .mobile-nav-toggle .bar {
            width: 22px;
            height: 2px;
            background: #FFFFFF;
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .mobile-menu {
            display: none;
            position: absolute;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(23, 26, 33, 0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border-dark);
            padding: 16px 24px;
            flex-direction: column;
            gap: 8px;
            z-index: 99;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu .nav-link {
            font-size: 1rem;
            padding: 12px 16px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: #D1D5DB;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: #A8B3C0;
            transition: color var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--color-amber);
        }
        .breadcrumb .separator {
            color: #4A5058;
            user-select: none;
        }
        .page-banner {
            position: relative;
            background: var(--color-charcoal-dark);
            padding: 90px 0 70px;
            overflow: hidden;
            border-bottom: 1px solid var(--color-border-dark);
        }
        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            z-index: 1;
        }
        .page-banner::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 17, 23, 0.92) 0%, rgba(23, 26, 33, 0.75) 50%, rgba(15, 17, 23, 0.88) 100%);
            z-index: 2;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 3;
            max-width: 820px;
        }
        .page-banner h1 {
            font-size: 2.25rem;
            line-height: 1.25;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .page-banner .banner-desc {
            font-size: 1rem;
            line-height: 1.9;
            color: #C5CBD3;
            max-width: 680px;
            margin-bottom: 24px;
        }
        .banner-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }
        .banner-stats .stat-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .banner-stats .stat-number {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-amber);
            line-height: 1.3;
        }
        .banner-stats .stat-label {
            font-size: 0.8rem;
            color: #A8B3C0;
        }
        .filter-toolbar {
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border-light);
            padding: 14px 0;
            position: sticky;
            top: var(--header-height);
            z-index: 50;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }
        .filter-toolbar .toolbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .filter-tabs {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-tab {
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 500;
            color: #5A6068;
            background: #F0F2F5;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
            border: 1px solid transparent;
        }
        .filter-tab:hover {
            color: #2D3138;
            background: #E8EAED;
        }
        .filter-tab.active {
            background: rgba(232, 179, 57, 0.15);
            color: #8B6914;
            border-color: var(--color-amber);
            font-weight: 600;
        }
        .sort-control {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            color: #5A6068;
        }
        .sort-control select {
            padding: 6px 12px;
            border: 1px solid var(--color-border-light);
            border-radius: 8px;
            background: #FFFFFF;
            cursor: pointer;
            font-size: 0.8rem;
            color: #2D3138;
        }
        .qa-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-2xl);
            overflow: hidden;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-sm);
        }
        .qa-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-amber);
        }
        .qa-card .qa-cover {
            width: 100%;
            aspect-ratio: 3 / 1.2;
            overflow: hidden;
            position: relative;
        }
        .qa-card .qa-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .qa-card:hover .qa-cover img {
            transform: scale(1.04);
        }
        .qa-card .qa-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            border-radius: 6px;
            font-size: 0.7rem;
            font-weight: 600;
            background: rgba(232, 179, 57, 0.92);
            color: #1A1D22;
        }
        .qa-card .qa-body {
            padding: 20px 22px 22px;
        }
        .qa-card .qa-title {
            font-size: 1.05rem;
            font-weight: 600;
            line-height: 1.5;
            color: #1F2329;
            margin-bottom: 10px;
            transition: color var(--transition-base);
        }
        .qa-card:hover .qa-title {
            color: #8B6914;
        }
        .qa-card .qa-excerpt {
            font-size: 0.88rem;
            line-height: 1.7;
            color: #5A6068;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .qa-card .qa-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.78rem;
            color: #A8B3C0;
        }
        .qa-card .qa-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .qa-card .qa-meta .tag-item {
            padding: 2px 10px;
            border-radius: 4px;
            background: #F0F2F5;
            color: #5A6068;
            font-size: 0.72rem;
            font-weight: 500;
        }
        .qa-card .qa-meta .tag-item.amber {
            background: rgba(232, 179, 57, 0.12);
            color: #8B6914;
        }
        .sidebar-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-2xl);
            padding: 22px;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card .sidebar-title {
            font-size: 1rem;
            font-weight: 600;
            color: #1F2329;
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--color-bg-light);
        }
        .hot-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .hot-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid #F0F2F5;
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .hot-list li:last-child {
            border-bottom: none;
        }
        .hot-list li:hover {
            background: #F9FAFB;
            border-radius: 8px;
            padding-left: 8px;
        }
        .hot-list .hot-rank {
            font-size: 1.1rem;
            font-weight: 700;
            color: #C0C6CC;
            min-width: 28px;
            text-align: center;
            flex-shrink: 0;
        }
        .hot-list .hot-rank.top {
            color: var(--color-amber);
        }
        .hot-list .hot-info {
            flex: 1;
            min-width: 0;
        }
        .hot-list .hot-info .hot-name {
            font-size: 0.86rem;
            font-weight: 500;
            color: #2D3138;
            line-height: 1.5;
        }
        .hot-list .hot-info .hot-meta {
            font-size: 0.75rem;
            color: #A8B3C0;
        }
        .sidebar-form {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 12px;
        }
        .sidebar-form input {
            padding: 10px 14px;
            border: 1px solid var(--color-border-light);
            border-radius: 8px;
            background: #F9FAFB;
            font-size: 0.85rem;
        }
        .sidebar-form input:focus {
            border-color: var(--color-amber);
            background: #FFFFFF;
        }
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 32px 0;
        }
        .pagination .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            border-radius: 8px;
            font-size: 0.85rem;
            font-weight: 500;
            color: #5A6068;
            background: #FFFFFF;
            border: 1px solid var(--color-border-light);
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .pagination .page-btn:hover {
            border-color: var(--color-amber);
            color: #8B6914;
        }
        .pagination .page-btn.active {
            background: var(--color-amber);
            color: #1A1D22;
            border-color: var(--color-amber);
            font-weight: 600;
        }
        .pagination .page-btn.disabled {
            opacity: 0.4;
            cursor: not-allowed;
            pointer-events: none;
        }
        .faq-section {
            background: var(--color-charcoal-dark);
            padding: 60px 0;
        }
        .faq-section .faq-heading {
            font-size: 1.5rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 28px;
            text-align: center;
        }
        .faq-item {
            background: var(--color-surface-dark);
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-xl);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: #4A5058;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            color: #E5E7EB;
            font-weight: 500;
            font-size: 0.95rem;
            line-height: 1.6;
            user-select: none;
        }
        .faq-question .faq-icon {
            font-size: 1.3rem;
            color: var(--color-amber);
            flex-shrink: 0;
            transition: transform var(--transition-base);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 22px;
            color: #C5CBD3;
            font-size: 0.88rem;
            line-height: 1.85;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
            padding-bottom: 20px;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .cta-section {
            background: var(--color-bg-light);
            padding: 60px 0;
        }
        .cta-card {
            background: var(--color-charcoal);
            border-radius: var(--radius-2xl);
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-xl);
            border: 1px solid var(--color-border-dark);
        }
        .cta-card .cta-text h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 10px;
        }
        .cta-card .cta-text p {
            color: #C5CBD3;
            font-size: 0.95rem;
            max-width: 520px;
            line-height: 1.8;
        }
        .site-footer {
            background: var(--color-charcoal-dark);
            color: #C5CBD3;
            padding: 56px 0 24px;
            border-top: 1px solid var(--color-border-dark);
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand {
            font-size: 1.4rem;
            font-weight: 700;
            color: #FFFFFF;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }
        .footer-logo-dot {
            width: 9px;
            height: 9px;
            background: var(--color-amber);
            border-radius: 50%;
            display: inline-block;
            flex-shrink: 0;
        }
        .footer-desc {
            font-size: 0.85rem;
            line-height: 1.8;
            color: #A8B3C0;
            margin-bottom: 12px;
        }
        .footer-heading {
            font-size: 0.9rem;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a {
            font-size: 0.82rem;
            color: #A8B3C0;
            transition: color var(--transition-base);
        }
        .footer-links a:hover {
            color: var(--color-amber);
        }
        .footer-form {
            display: flex;
            gap: 8px;
        }
        .footer-form input {
            flex: 1;
            padding: 10px 14px;
            border: 1px solid var(--color-border-dark);
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.05);
            color: #E5E7EB;
            font-size: 0.82rem;
            min-width: 0;
        }
        .footer-form input::placeholder {
            color: #6B7280;
        }
        .footer-form input:focus {
            border-color: var(--color-amber);
        }
        .footer-bottom {
            border-top: 1px solid var(--color-border-dark);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            font-size: 0.78rem;
            color: #8B9198;
        }
        .footer-legal-links {
            display: flex;
            gap: 8px;
            align-items: center;
            font-size: 0.78rem;
        }
        .footer-legal-links a {
            color: #8B9198;
            transition: color var(--transition-base);
        }
        .footer-legal-links a:hover {
            color: var(--color-amber);
        }
        @media (max-width: 1024px) {
            .nav-links-desktop {
                gap: 2px;
            }
            .nav-link {
                padding: 8px 10px;
                font-size: 0.82rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .nav-links-desktop {
                display: none;
            }
            .nav-actions-desktop {
                display: none;
            }
            .mobile-nav-toggle {
                display: flex;
            }
            .page-banner {
                padding: 60px 0 48px;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .banner-stats {
                gap: 16px;
            }
            .banner-stats .stat-number {
                font-size: 1.1rem;
            }
            .filter-toolbar .toolbar-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-card {
                padding: 32px 24px;
                flex-direction: column;
                text-align: center;
            }
            .cta-card .cta-text p {
                max-width: 100%;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .footer-legal-links {
                flex-wrap: wrap;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .page-banner h1 {
                font-size: 1.3rem;
            }
            .page-banner .banner-desc {
                font-size: 0.88rem;
            }
            .filter-tabs {
                gap: 4px;
            }
            .filter-tab {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
            .qa-card .qa-body {
                padding: 16px;
            }
            .pagination .page-btn {
                min-width: 34px;
                height: 34px;
                font-size: 0.78rem;
                padding: 0 8px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.88rem;
            }
            .faq-answer {
                font-size: 0.82rem;
                padding: 0 16px;
            }
            .footer-form {
                flex-direction: column;
            }
        }

/* roulang page: category4 */
:root {
 --color-charcoal: #171A21;
 --color-charcoal-dark: #0F1117;
 --color-amber: #E8B339;
 --color-amber-dark: #D09D2E;
 --color-mist: #A8B3C0;
 --color-bg-light: #F5F6F8;
 --color-surface: #FFFFFF;
 --color-surface-dark: #1D2027;
 --color-border-light: #E3E6EA;
 --color-border-dark: #2A2F38;
 --color-sage: #3A7D70;
 --radius-xl: 12px;
 --radius-2xl: 16px;
 --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
 --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.08);
 --shadow-lg: 0 10px 24px rgba(0, 0, 0, 0.12);
 --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.16);
 --transition-base: 0.2s ease;
 --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
 --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
 --header-height: 68px;
 }
 html {
 scroll-behavior: smooth;
 -webkit-text-size-adjust: 100%;
 }
 body {
 font-family: var(--font-sans);
 font-size: 15px;
 line-height: 1.85;
 color: #2D3138;
 background-color: var(--color-bg-light);
 -webkit-font-smoothing: antialiased;
 -moz-osx-font-smoothing: grayscale;
 overflow-x: hidden;
 }
 a {
 color: inherit;
 text-decoration: none;
 transition: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
 }
 a:focus-visible,
 button:focus-visible,
 input:focus-visible,
 textarea:focus-visible {
 outline: 2px solid var(--color-amber);
 outline-offset: 2px;
 border-radius: 4px;
 }
 img {
 max-width: 100%;
 height: auto;
 display: block;
 }
 button {
 font-family: inherit;
 cursor: pointer;
 border: none;
 background: none;
 transition: all var(--transition-base);
 }
 input,
 textarea,
 select {
 font-family: inherit;
 font-size: 14px;
 color: #2D3138;
 transition: border-color var(--transition-base), box-shadow var(--transition-base);
 }
 .container {
 max-width: 1240px;
 margin: 0 auto;
 padding-left: 24px;
 padding-right: 24px;
 }
 .site-header {
 position: sticky;
 top: 0;
 z-index: 100;
 height: var(--header-height);
 background: rgba(23, 26, 33, 0.95);
 backdrop-filter: blur(12px);
 -webkit-backdrop-filter: blur(12px);
 border-bottom: 1px solid var(--color-border-dark);
 box-shadow: 0 2px 16px rgba(0, 0, 0, 0.18);
 }
 .site-header .header-inner {
 display: flex;
 align-items: center;
 justify-content: space-between;
 height: 100%;
 gap: 16px;
 }
 .logo-text {
 font-size: 1.55rem;
 font-weight: 700;
 letter-spacing: 0.01em;
 color: #FFFFFF;
 display: flex;
 align-items: center;
 gap: 8px;
 white-space: nowrap;
 }
 .logo-text .logo-dot {
 width: 10px;
 height: 10px;
 background: var(--color-amber);
 border-radius: 50%;
 display: inline-block;
 flex-shrink: 0;
 animation: logoPulse 3s ease-in-out infinite;
 }
 @keyframes logoPulse {
 0%, 100% { opacity: 1; transform: scale(1); }
 50% { opacity: 0.7; transform: scale(0.9); }
 }
 .nav-links-desktop {
 display: flex;
 align-items: center;
 gap: 8px;
 }
 .nav-link {
 display: inline-flex;
 align-items: center;
 gap: 6px;
 padding: 8px 14px;
 font-size: 0.9rem;
 font-weight: 500;
 color: #D1D5DB;
 border-radius: 8px;
 letter-spacing: 0.01em;
 position: relative;
 transition: color var(--transition-base), background-color var(--transition-base);
 }
 .nav-link:hover {
 color: #FFFFFF;
 background: rgba(255, 255, 255, 0.08);
 }
 .nav-link.active {
 color: var(--color-amber);
 background: rgba(232, 179, 57, 0.12);
 }
 .nav-link .nav-dot {
 width: 6px;
 height: 6px;
 border-radius: 50%;
 background: currentColor;
 opacity: 0.5;
 flex-shrink: 0;
 }
 .nav-actions-desktop {
 display: flex;
 align-items: center;
 gap: 10px;
 flex-shrink: 0;
 }
 .btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 gap: 8px;
 font-weight: 600;
 font-size: 0.875rem;
 border-radius: 10px;
 padding: 12px 22px;
 min-height: 44px;
 transition: all var(--transition-base);
 white-space: nowrap;
 letter-spacing: 0.01em;
 }
 .btn-primary {
 background: var(--color-amber);
 color: #1A1D22;
 box-shadow: 0 4px 14px rgba(232, 179, 57, 0.3);
 }
 .btn-primary:hover {
 background: var(--color-amber-dark);
 box-shadow: 0 6px 20px rgba(232, 179, 57, 0.4);
 transform: translateY(-1px) scale(0.99);
 }
 .btn-primary:active {
 transform: scale(0.97);
 box-shadow: 0 2px 8px rgba(232, 179, 57, 0.25);
 }
 .btn-secondary {
 background: transparent;
 color: #D1D5DB;
 border: 1px solid #4A5058;
 box-shadow: none;
 }
 .btn-secondary:hover {
 border-color: var(--color-amber);
 color: var(--color-amber);
 background: rgba(232, 179, 57, 0.08);
 }
 .btn-sm {
 padding: 8px 14px;
 min-height: 36px;
 font-size: 0.8rem;
 border-radius: 8px;
 }
 .mobile-nav-toggle {
 display: none;
 flex-direction: column;
 gap: 4px;
 padding: 8px;
 background: transparent;
 border: none;
 }
 .mobile-nav-toggle .bar {
 width: 22px;
 height: 2px;
 background: #D1D5DB;
 border-radius: 2px;
 transition: all var(--transition-base);
 }
 .mobile-nav-toggle[aria-expanded="true"] .bar:nth-child(1) {
 transform: translateY(6px) rotate(45deg);
 background: var(--color-amber);
 }
 .mobile-nav-toggle[aria-expanded="true"] .bar:nth-child(2) {
 opacity: 0;
 }
 .mobile-nav-toggle[aria-expanded="true"] .bar:nth-child(3) {
 transform: translateY(-6px) rotate(-45deg);
 background: var(--color-amber);
 }
 .mobile-menu {
 display: none;
 position: absolute;
 top: var(--header-height);
 left: 0;
 right: 0;
 background: rgba(23, 26, 33, 0.98);
 backdrop-filter: blur(16px);
 -webkit-backdrop-filter: blur(16px);
 border-bottom: 1px solid var(--color-border-dark);
 padding: 16px 24px 24px;
 flex-direction: column;
 gap: 4px;
 box-shadow: var(--shadow-lg);
 }
 .mobile-menu.open {
 display: flex;
 }
 .mobile-menu .nav-link {
 padding: 12px 14px;
 font-size: 0.95rem;
 }
 .mobile-menu .btn {
 width: 100%;
 justify-content: center;
 }
 @media (max-width: 1024px) {
 .nav-links-desktop { display: none; }
 .nav-actions-desktop { display: none; }
 .mobile-nav-toggle { display: flex; }
 }
 @media (min-width: 1025px) {
 .mobile-menu { display: none !important; }
 }
 .breadcrumb {
 display: flex;
 align-items: center;
 flex-wrap: wrap;
 gap: 8px;
 font-size: 0.82rem;
 color: var(--color-mist);
 padding: 14px 0;
 }
 .breadcrumb a {
 color: var(--color-mist);
 transition: color var(--transition-base);
 }
 .breadcrumb a:hover {
 color: var(--color-amber);
 }
 .breadcrumb .separator {
 color: #6B7280;
 }
 .breadcrumb .current {
 color: var(--color-amber);
 font-weight: 500;
 }
 .page-header-topic {
 position: relative;
 background: var(--color-charcoal-dark);
 border-radius: var(--radius-2xl);
 overflow: hidden;
 margin-bottom: 24px;
 border: 1px solid var(--color-border-dark);
 }
 .page-header-topic .header-bg {
 position: absolute;
 inset: 0;
 background-image: url('/assets/images/backpic/back-1.webp');
 background-size: cover;
 background-position: center;
 opacity: 0.28;
 }
 .page-header-topic .header-overlay {
 position: absolute;
 inset: 0;
 background: linear-gradient(135deg, rgba(23, 26, 33, 0.92) 0%, rgba(23, 26, 33, 0.65) 50%, rgba(23, 26, 33, 0.45) 100%);
 }
 .page-header-topic .header-content {
 position: relative;
 z-index: 1;
 padding: 48px 40px;
 }
 .page-header-topic .topic-badge {
 display: inline-flex;
 align-items: center;
 gap: 6px;
 background: rgba(232, 179, 57, 0.18);
 color: var(--color-amber);
 font-size: 0.75rem;
 font-weight: 600;
 padding: 6px 12px;
 border-radius: 20px;
 letter-spacing: 0.04em;
 margin-bottom: 18px;
 }
 .page-header-topic h1 {
 font-size: 2.25rem;
 font-weight: 700;
 line-height: 1.25;
 color: #FFFFFF;
 margin-bottom: 16px;
 letter-spacing: -0.01em;
 }
 .page-header-topic .header-desc {
 font-size: 0.95rem;
 color: #C5CCD6;
 max-width: 680px;
 line-height: 1.8;
 }
 .filter-toolbar {
 background: var(--color-surface);
 border: 1px solid var(--color-border-light);
 border-radius: var(--radius-xl);
 padding: 16px 20px;
 display: flex;
 align-items: center;
 justify-content: space-between;
 flex-wrap: wrap;
 gap: 12px;
 margin-bottom: 24px;
 box-shadow: var(--shadow-sm);
 }
 .filter-tags {
 display: flex;
 align-items: center;
 flex-wrap: wrap;
 gap: 8px;
 }
 .filter-tag {
 font-size: 0.82rem;
 font-weight: 500;
 padding: 8px 16px;
 border-radius: 20px;
 color: #6B7280;
 background: var(--color-bg-light);
 border: 1px solid transparent;
 cursor: pointer;
 transition: all var(--transition-base);
 white-space: nowrap;
 }
 .filter-tag:hover {
 color: var(--color-charcoal);
 border-color: var(--color-border-light);
 }
 .filter-tag.active {
 background: rgba(232, 179, 57, 0.15);
 color: var(--color-amber-dark);
 border-color: rgba(232, 179, 57, 0.3);
 font-weight: 600;
 }
 .filter-sort {
 display: flex;
 align-items: center;
 gap: 6px;
 font-size: 0.82rem;
 color: #6B7280;
 }
 .filter-sort select {
 padding: 8px 12px;
 border: 1px solid var(--color-border-light);
 border-radius: 8px;
 background: var(--color-surface);
 font-size: 0.82rem;
 color: #2D3138;
 cursor: pointer;
 }
 .topic-grid-layout {
 display: grid;
 grid-template-columns: 2fr 1fr;
 gap: 24px;
 margin-bottom: 32px;
 }
 .topic-card {
 background: var(--color-surface);
 border: 1px solid var(--color-border-light);
 border-radius: var(--radius-2xl);
 overflow: hidden;
 box-shadow: var(--shadow-sm);
 transition: all var(--transition-smooth);
 display: flex;
 flex-direction: column;
 }
 .topic-card:hover {
 transform: translateY(-2px);
 box-shadow: var(--shadow-lg);
 border-color: rgba(232, 179, 57, 0.4);
 }
 .topic-card .card-image-wrap {
 position: relative;
 aspect-ratio: 16/9;
 overflow: hidden;
 }
 .topic-card .card-image-wrap img {
 width: 100%;
 height: 100%;
 object-fit: cover;
 transition: transform var(--transition-smooth);
 }
 .topic-card:hover .card-image-wrap img {
 transform: scale(1.04);
 }
 .topic-card .card-tag-badge {
 position: absolute;
 top: 12px;
 left: 12px;
 background: rgba(23, 26, 33, 0.85);
 color: var(--color-amber);
 font-size: 0.72rem;
 font-weight: 600;
 padding: 4px 10px;
 border-radius: 14px;
 letter-spacing: 0.03em;
 }
 .topic-card .card-body {
 padding: 18px 20px 20px;
 display: flex;
 flex-direction: column;
 flex: 1;
 }
 .topic-card .card-title {
 font-size: 1.08rem;
 font-weight: 600;
 line-height: 1.4;
 color: #1F2937;
 margin-bottom: 8px;
 transition: color var(--transition-base);
 }
 .topic-card:hover .card-title {
 color: var(--color-amber-dark);
 }
 .topic-card .card-excerpt {
 font-size: 0.88rem;
 color: #6B7280;
 line-height: 1.7;
 margin-bottom: 14px;
 }
 .topic-card .card-meta {
 display: flex;
 align-items: center;
 gap: 14px;
 font-size: 0.78rem;
 color: var(--color-mist);
 margin-top: auto;
 padding-top: 12px;
 border-top: 1px solid var(--color-border-light);
 }
 .topic-card .card-meta span {
 display: inline-flex;
 align-items: center;
 gap: 4px;
 }
 .topic-card-grid {
 display: grid;
 grid-template-columns: repeat(2, 1fr);
 gap: 20px;
 }
 .sidebar-card {
 background: var(--color-surface);
 border: 1px solid var(--color-border-light);
 border-radius: var(--radius-xl);
 padding: 20px;
 box-shadow: var(--shadow-sm);
 margin-bottom: 20px;
 }
 .sidebar-card:last-child {
 margin-bottom: 0;
 }
 .sidebar-card .sidebar-title {
 font-size: 0.95rem;
 font-weight: 700;
 color: #1F2937;
 margin-bottom: 14px;
 display: flex;
 align-items: center;
 gap: 8px;
 }
 .sidebar-card .sidebar-title .icon-dot {
 width: 8px;
 height: 8px;
 border-radius: 50%;
 background: var(--color-amber);
 flex-shrink: 0;
 }
 .hot-list {
 list-style: none;
 padding: 0;
 margin: 0;
 display: flex;
 flex-direction: column;
 gap: 0;
 }
 .hot-list li {
 display: flex;
 align-items: center;
 gap: 12px;
 padding: 10px 0;
 border-bottom: 1px solid var(--color-border-light);
 }
 .hot-list li:last-child {
 border-bottom: none;
 }
 .hot-list .rank-number {
 width: 24px;
 height: 24px;
 border-radius: 6px;
 background: var(--color-bg-light);
 color: #6B7280;
 font-size: 0.72rem;
 font-weight: 700;
 display: flex;
 align-items: center;
 justify-content: center;
 flex-shrink: 0;
 }
 .hot-list li:nth-child(1) .rank-number {
 background: rgba(232, 179, 57, 0.2);
 color: var(--color-amber-dark);
 }
 .hot-list li:nth-child(2) .rank-number {
 background: rgba(232, 179, 57, 0.12);
 color: var(--color-amber-dark);
 }
 .hot-list li:nth-child(3) .rank-number {
 background: rgba(232, 179, 57, 0.08);
 color: var(--color-amber-dark);
 }
 .hot-list .hot-title {
 font-size: 0.85rem;
 font-weight: 500;
 color: #374151;
 line-height: 1.4;
 flex: 1;
 transition: color var(--transition-base);
 }
 .hot-list li:hover .hot-title {
 color: var(--color-amber-dark);
 }
 .hot-list .hot-count {
 font-size: 0.75rem;
 color: var(--color-mist);
 flex-shrink: 0;
 }
 .announcement-item {
 display: flex;
 gap: 10px;
 padding: 10px 0;
 border-bottom: 1px solid var(--color-border-light);
 }
 .announcement-item:last-child {
 border-bottom: none;
 }
 .announcement-item .announce-dot {
 width: 6px;
 height: 6px;
 border-radius: 50%;
 background: var(--color-sage);
 margin-top: 8px;
 flex-shrink: 0;
 }
 .announcement-item .announce-text {
 font-size: 0.83rem;
 color: #4B5563;
 line-height: 1.6;
 }
 .announcement-item .announce-date {
 font-size: 0.72rem;
 color: var(--color-mist);
 display: block;
 margin-top: 2px;
 }
 .subscribe-box {
 background: var(--color-charcoal);
 border: none;
 color: #fff;
 }
 .subscribe-box .sidebar-title {
 color: #FFFFFF;
 }
 .subscribe-box .subscribe-desc {
 font-size: 0.82rem;
 color: #A8B3C0;
 line-height: 1.7;
 margin-bottom: 14px;
 }
 .subscribe-input-group {
 display: flex;
 flex-direction: column;
 gap: 10px;
 }
 .subscribe-input-group input {
 background: rgba(255, 255, 255, 0.08);
 border: 1px solid var(--color-border-dark);
 border-radius: 8px;
 color: #FFFFFF;
 padding: 10px 14px;
 font-size: 0.85rem;
 }
 .subscribe-input-group input::placeholder {
 color: #6B7280;
 }
 .subscribe-input-group input:focus {
 border-color: var(--color-amber);
 outline: none;
 box-shadow: 0 0 0 3px rgba(232, 179, 57, 0.15);
 }
 .subscribe-input-group .btn {
 width: 100%;
 }
 .pagination {
 display: flex;
 align-items: center;
 justify-content: center;
 gap: 6px;
 padding: 28px 0 8px;
 flex-wrap: wrap;
 }
 .pagination .page-btn {
 width: 38px;
 height: 38px;
 border-radius: 10px;
 display: flex;
 align-items: center;
 justify-content: center;
 font-size: 0.85rem;
 font-weight: 500;
 color: #4B5563;
 background: var(--color-surface);
 border: 1px solid var(--color-border-light);
 cursor: pointer;
 transition: all var(--transition-base);
 }
 .pagination .page-btn:hover {
 border-color: var(--color-amber);
 color: var(--color-amber-dark);
 }
 .pagination .page-btn.active {
 background: var(--color-amber);
 border-color: var(--color-amber);
 color: #1A1D22;
 font-weight: 700;
 }
 .pagination .page-btn.disabled {
 opacity: 0.4;
 cursor: not-allowed;
 }
 .cta-topic-section {
 background: linear-gradient(180deg, var(--color-charcoal) 0%, var(--color-charcoal-dark) 100%);
 border-radius: var(--radius-2xl);
 padding: 48px 40px;
 text-align: center;
 position: relative;
 overflow: hidden;
 margin-top: 12px;
 margin-bottom: 32px;
 border: 1px solid var(--color-border-dark);
 }
 .cta-topic-section::before {
 content: '';
 position: absolute;
 top: -60%;
 right: -20%;
 width: 400px;
 height: 400px;
 background: radial-gradient(circle, rgba(232, 179, 57, 0.12) 0%, transparent 70%);
 border-radius: 50%;
 pointer-events: none;
 }
 .cta-topic-section h2 {
 font-size: 1.6rem;
 font-weight: 700;
 color: #FFFFFF;
 margin-bottom: 12px;
 }
 .cta-topic-section p {
 font-size: 0.95rem;
 color: #C5CCD6;
 max-width: 560px;
 margin: 0 auto 24px;
 line-height: 1.8;
 }
 .cta-topic-section .cta-buttons {
 display: flex;
 align-items: center;
 justify-content: center;
 gap: 12px;
 flex-wrap: wrap;
 }
 .footer-topic-highlight {
 background: var(--color-bg-light);
 border: 1px dashed var(--color-border-light);
 border-radius: var(--radius-xl);
 padding: 24px 28px;
 margin-top: 20px;
 display: flex;
 align-items: flex-start;
 gap: 16px;
 flex-wrap: wrap;
 }
 .footer-topic-highlight .highlight-icon {
 width: 40px;
 height: 40px;
 border-radius: 50%;
 background: rgba(232, 179, 57, 0.18);
 display: flex;
 align-items: center;
 justify-content: center;
 flex-shrink: 0;
 font-size: 1.1rem;
 color: var(--color-amber-dark);
 }
 .footer-topic-highlight p {
 font-size: 0.88rem;
 color: #4B5563;
 line-height: 1.75;
 }
 .footer-topic-highlight strong {
 color: #1F2937;
 font-weight: 600;
 }
 @media (max-width: 1024px) {
 .topic-grid-layout {
 grid-template-columns: 1fr;
 }
 .topic-card-grid {
 grid-template-columns: repeat(2, 1fr);
 }
 .page-header-topic .header-content {
 padding: 32px 24px;
 }
 .page-header-topic h1 {
 font-size: 1.8rem;
 }
 }
 @media (max-width: 640px) {
 .topic-card-grid {
 grid-template-columns: 1fr;
 }
 .page-header-topic .header-content {
 padding: 24px 18px;
 }
 .page-header-topic h1 {
 font-size: 1.5rem;
 }
 .cta-topic-section {
 padding: 32px 20px;
 }
 .filter-toolbar {
 flex-direction: column;
 align-items: flex-start;
 }
 .footer-topic-highlight {
 flex-direction: column;
 }
 }
 .site-footer {
 background: var(--color-charcoal-dark);
 color: #A8B3C0;
 padding: 48px 0 24px;
 border-top: 1px solid var(--color-border-dark);
 margin-top: 40px;
 }
 .site-footer .footer-grid {
 display: grid;
 grid-template-columns: repeat(4, 1fr);
 gap: 32px;
 margin-bottom: 36px;
 }
 .site-footer .footer-brand {
 font-size: 1.3rem;
 font-weight: 700;
 color: #FFFFFF;
 display: flex;
 align-items: center;
 gap: 8px;
 margin-bottom: 12px;
 }
 .site-footer .footer-logo-dot {
 width: 8px;
 height: 8px;
 background: var(--color-amber);
 border-radius: 50%;
 display: inline-block;
 flex-shrink: 0;
 }
 .site-footer .footer-desc {
 font-size: 0.82rem;
 line-height: 1.75;
 color: #8A94A3;
 }
 .site-footer .footer-heading {
 font-size: 0.9rem;
 font-weight: 600;
 color: #FFFFFF;
 margin-bottom: 14px;
 letter-spacing: 0.02em;
 }
 .site-footer .footer-links {
 list-style: none;
 padding: 0;
 margin: 0;
 display: flex;
 flex-direction: column;
 gap: 8px;
 }
 .site-footer .footer-links a {
 font-size: 0.83rem;
 color: #8A94A3;
 transition: color var(--transition-base);
 }
 .site-footer .footer-links a:hover {
 color: var(--color-amber);
 }
 .site-footer .footer-form {
 display: flex;
 gap: 8px;
 }
 .site-footer .footer-form input {
 flex: 1;
 background: rgba(255, 255, 255, 0.06);
 border: 1px solid var(--color-border-dark);
 border-radius: 8px;
 padding: 10px 14px;
 color: #FFFFFF;
 font-size: 0.82rem;
 }
 .site-footer .footer-form input::placeholder {
 color: #6B7280;
 }
 .site-footer .footer-form input:focus {
 border-color: var(--color-amber);
 outline: none;
 }
 .site-footer .footer-bottom {
 display: flex;
 align-items: center;
 justify-content: space-between;
 flex-wrap: wrap;
 gap: 12px;
 padding-top: 20px;
 border-top: 1px solid var(--color-border-dark);
 font-size: 0.78rem;
 color: #6B7280;
 }
 .site-footer .footer-legal-links {
 display: flex;
 align-items: center;
 gap: 8px;
 }
 .site-footer .footer-legal-links a {
 color: #8A94A3;
 transition: color var(--transition-base);
 }
 .site-footer .footer-legal-links a:hover {
 color: var(--color-amber);
 }
 @media (max-width: 1024px) {
 .site-footer .footer-grid {
 grid-template-columns: repeat(2, 1fr);
 }
 }
 @media (max-width: 520px) {
 .site-footer .footer-grid {
 grid-template-columns: 1fr;
 }
 .site-footer .footer-bottom {
 flex-direction: column;
 align-items: flex-start;
 }
 }

/* roulang page: category5 */
:root {
            --color-charcoal: #171A21;
            --color-charcoal-dark: #0F1117;
            --color-amber: #E8B339;
            --color-amber-dark: #D09D2E;
            --color-mist: #A8B3C0;
            --color-bg-light: #F5F6F8;
            --color-surface: #FFFFFF;
            --color-surface-dark: #1D2027;
            --color-border-light: #E3E6EA;
            --color-border-dark: #2A2F38;
            --color-sage: #3A7D70;
            --radius-xl: 12px;
            --radius-2xl: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 10px 24px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.16);
            --transition-base: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --header-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.85;
            color: #2D3138;
            background-color: var(--color-bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-amber);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-base);
        }

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 14px;
            color: #2D3138;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
            box-sizing: border-box;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
            width: 100%;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: var(--header-height);
            background: rgba(23, 26, 33, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border-dark);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.18);
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }

        .logo-text {
            font-size: 1.55rem;
            font-weight: 700;
            letter-spacing: 0.01em;
            color: #FFFFFF;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo-text .logo-dot {
            width: 10px;
            height: 10px;
            background: var(--color-amber);
            border-radius: 50%;
            display: inline-block;
            flex-shrink: 0;
            animation: logoPulse 3s ease-in-out infinite;
        }

        @keyframes logoPulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.6;
                transform: scale(1.3);
            }
        }

        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 13px;
            font-size: 0.9rem;
            font-weight: 500;
            color: #D1D5DB;
            border-radius: 8px;
            letter-spacing: 0.01em;
            position: relative;
            transition: color var(--transition-base), background-color var(--transition-base);
        }

        .nav-link:hover {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-link.active {
            color: var(--color-amber);
            background: rgba(232, 179, 57, 0.12);
        }

        .nav-link .nav-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: currentColor;
            opacity: 0.5;
            flex-shrink: 0;
        }

        .nav-link.active .nav-dot {
            opacity: 1;
            background: var(--color-amber);
            box-shadow: 0 0 8px rgba(232, 179, 57, 0.7);
        }

        .nav-actions-desktop {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 0.875rem;
            border-radius: 10px;
            padding: 12px 22px;
            min-height: 44px;
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
            line-height: 1.2;
        }

        .btn-primary {
            background: var(--color-amber);
            color: #1A1D22;
            box-shadow: 0 4px 14px rgba(232, 179, 57, 0.3);
        }

        .btn-primary:hover {
            background: var(--color-amber-dark);
            box-shadow: 0 6px 20px rgba(232, 179, 57, 0.4);
            transform: translateY(-1px) scale(0.99);
        }

        .btn-primary:active {
            transform: scale(0.97);
            box-shadow: 0 2px 8px rgba(232, 179, 57, 0.25);
        }

        .btn-secondary {
            background: transparent;
            color: #D1D5DB;
            border: 1px solid #4A5058;
            box-shadow: none;
        }

        .btn-secondary:hover {
            border-color: var(--color-amber);
            color: var(--color-amber);
            background: rgba(232, 179, 57, 0.08);
        }

        .btn-sm {
            padding: 8px 16px;
            min-height: 36px;
            font-size: 0.8rem;
            border-radius: 8px;
        }

        .mobile-nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            padding: 10px;
            border-radius: 8px;
            border: 1px solid #3A3F47;
            background: rgba(255, 255, 255, 0.05);
            flex-shrink: 0;
        }

        .mobile-nav-toggle .bar {
            display: block;
            width: 100%;
            height: 2px;
            background: #D1D5DB;
            border-radius: 2px;
            transition: transform var(--transition-base), opacity var(--transition-base);
        }

        .mobile-nav-toggle[aria-expanded="true"] .bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .mobile-nav-toggle[aria-expanded="true"] .bar:nth-child(2) {
            opacity: 0;
        }
        .mobile-nav-toggle[aria-expanded="true"] .bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: absolute;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(23, 26, 33, 0.98);
            border-bottom: 1px solid var(--color-border-dark);
            padding: 16px 24px 24px;
            flex-direction: column;
            gap: 8px;
            box-shadow: 0 16px 32px rgba(0, 0, 0, 0.3);
            z-index: 99;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu .nav-link {
            padding: 12px 16px;
            font-size: 0.95rem;
            border-radius: 10px;
            justify-content: flex-start;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 16px;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
            transition: color var(--transition-base);
        }

        .breadcrumb a:hover {
            color: var(--color-amber);
        }

        .breadcrumb .separator {
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.7rem;
        }

        .breadcrumb .current {
            color: var(--color-amber);
            font-weight: 500;
        }

        /* Page Hero */
        .page-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 48px 0 40px;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 17, 23, 0.92) 0%, rgba(23, 26, 33, 0.78) 45%, rgba(23, 26, 33, 0.55) 100%);
            z-index: 1;
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
        }

        .page-hero h1 {
            font-size: 2.25rem;
            line-height: 1.25;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 16px;
            letter-spacing: 0.01em;
        }

        .page-hero .hero-desc {
            font-size: 1rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.75);
            max-width: 680px;
            margin: 0 0 24px;
        }

        .hero-meta-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 24px;
        }

        .hero-meta-tags .tag {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: rgba(255, 255, 255, 0.85);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 500;
            backdrop-filter: blur(4px);
        }

        /* Filter Toolbar */
        .filter-toolbar {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-xl);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 24px;
            box-shadow: var(--shadow-sm);
        }

        .filter-toolbar .filter-label {
            font-size: 0.8rem;
            font-weight: 600;
            color: #6B7280;
            flex-shrink: 0;
        }

        .filter-toolbar .filter-tabs {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .filter-tab {
            padding: 6px 14px;
            border-radius: 8px;
            font-size: 0.8rem;
            font-weight: 500;
            color: #4B5563;
            background: var(--color-bg-light);
            border: 1px solid transparent;
            transition: all var(--transition-base);
            cursor: pointer;
            white-space: nowrap;
        }

        .filter-tab:hover {
            color: var(--color-amber);
            border-color: var(--color-amber);
            background: rgba(232, 179, 57, 0.06);
        }

        .filter-tab.active {
            background: #1A1D22;
            color: var(--color-amber);
            border-color: #1A1D22;
            font-weight: 600;
        }

        .filter-sort {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            color: #6B7280;
            flex-shrink: 0;
        }

        .filter-sort select {
            border: 1px solid var(--color-border-light);
            border-radius: 8px;
            padding: 6px 12px;
            font-size: 0.8rem;
            background: #FFFFFF;
            color: #2D3138;
            cursor: pointer;
        }

        /* Content Layout */
        .content-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 24px;
            margin-bottom: 40px;
        }

        /* Cards Grid */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .content-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

        .content-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(232, 179, 57, 0.4);
        }

        .content-card .card-image {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }

        .content-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }

        .content-card:hover .card-image img {
            transform: scale(1.05);
        }

        .content-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-amber);
            color: #1A1D22;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 6px;
            letter-spacing: 0.02em;
            z-index: 2;
        }

        .content-card .card-badge.hot {
            background: #E8553D;
            color: #FFFFFF;
        }

        .content-card .card-body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .content-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 10px;
        }

        .content-card .card-tags span {
            font-size: 0.7rem;
            font-weight: 500;
            color: #6B7280;
            background: var(--color-bg-light);
            padding: 3px 10px;
            border-radius: 4px;
            letter-spacing: 0.01em;
        }

        .content-card .card-title {
            font-size: 1.05rem;
            font-weight: 600;
            line-height: 1.4;
            color: #1A1D22;
            margin: 0 0 8px;
            letter-spacing: 0.01em;
            transition: color var(--transition-base);
        }

        .content-card:hover .card-title {
            color: var(--color-amber-dark);
        }

        .content-card .card-excerpt {
            font-size: 0.85rem;
            line-height: 1.7;
            color: #6B7280;
            margin: 0 0 14px;
            flex: 1;
        }

        .content-card .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.75rem;
            color: var(--color-mist);
            padding-top: 12px;
            border-top: 1px solid var(--color-border-light);
        }

        .content-card .card-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .content-card .card-meta .meta-icon {
            font-size: 0.75rem;
            opacity: 0.7;
        }

        /* Sidebar */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .sidebar-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-xl);
            padding: 20px;
            box-shadow: var(--shadow-sm);
        }

        .sidebar-card .sidebar-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: #1A1D22;
            margin: 0 0 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.01em;
        }

        .sidebar-card .sidebar-title .icon {
            color: var(--color-amber);
            font-size: 1rem;
        }

        .hot-rank-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .hot-rank-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.82rem;
            color: #4B5563;
            padding: 8px 10px;
            border-radius: 8px;
            transition: background-color var(--transition-base);
        }

        .hot-rank-list li:hover {
            background: var(--color-bg-light);
        }

        .hot-rank-list .rank-num {
            width: 22px;
            height: 22px;
            border-radius: 6px;
            background: var(--color-bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            font-weight: 700;
            color: #9CA3AF;
            flex-shrink: 0;
        }

        .hot-rank-list li:nth-child(1) .rank-num {
            background: #E8553D;
            color: #FFFFFF;
        }
        .hot-rank-list li:nth-child(2) .rank-num {
            background: var(--color-amber);
            color: #1A1D22;
        }
        .hot-rank-list li:nth-child(3) .rank-num {
            background: var(--color-sage);
            color: #FFFFFF;
        }

        .hot-rank-list .rank-text {
            flex: 1;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .hot-rank-list .rank-count {
            font-size: 0.7rem;
            color: var(--color-mist);
            flex-shrink: 0;
        }

        .sidebar-subscribe-form {
            display: flex;
            gap: 8px;
            flex-direction: column;
        }

        .sidebar-subscribe-form input {
            border: 1px solid var(--color-border-light);
            border-radius: 8px;
            padding: 10px 14px;
            font-size: 0.85rem;
            background: var(--color-bg-light);
            width: 100%;
        }

        .sidebar-subscribe-form input:focus {
            border-color: var(--color-amber);
            background: #FFFFFF;
            box-shadow: 0 0 0 3px rgba(232, 179, 57, 0.1);
        }

        /* Pagination */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 4px;
            margin: 32px 0 40px;
            flex-wrap: wrap;
        }

        .pagination .page-btn {
            min-width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            font-size: 0.85rem;
            font-weight: 500;
            color: #4B5563;
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            cursor: pointer;
            padding: 0 10px;
        }

        .pagination .page-btn:hover {
            border-color: var(--color-amber);
            color: var(--color-amber);
            background: rgba(232, 179, 57, 0.06);
        }

        .pagination .page-btn.active {
            background: #1A1D22;
            color: var(--color-amber);
            border-color: #1A1D22;
            font-weight: 700;
        }

        .pagination .page-btn.disabled {
            opacity: 0.4;
            cursor: not-allowed;
            pointer-events: none;
        }

        /* Membership Compare Table */
        .membership-section {
            padding: 48px 0;
            background: var(--color-charcoal-dark);
            margin-bottom: 40px;
        }

        .membership-section .section-header {
            text-align: center;
            margin-bottom: 32px;
        }

        .membership-section .section-header h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 8px;
            letter-spacing: 0.01em;
        }

        .membership-section .section-header p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            margin: 0;
        }

        .membership-table-wrapper {
            overflow-x: auto;
            border-radius: var(--radius-xl);
            border: 1px solid var(--color-border-dark);
        }

        .membership-table {
            width: 100%;
            min-width: 720px;
            border-collapse: collapse;
            font-size: 0.85rem;
        }

        .membership-table thead th {
            background: var(--color-surface-dark);
            color: #FFFFFF;
            font-weight: 600;
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid var(--color-border-dark);
            white-space: nowrap;
        }

        .membership-table thead th:first-child {
            border-radius: 0;
        }

        .membership-table tbody td {
            padding: 14px 20px;
            color: rgba(255, 255, 255, 0.75);
            border-bottom: 1px solid rgba(42, 47, 56, 0.6);
            vertical-align: middle;
        }

        .membership-table tbody tr:last-child td {
            border-bottom: none;
        }

        .membership-table tbody tr:hover td {
            background: rgba(255, 255, 255, 0.03);
        }

        .membership-table .plan-name {
            font-weight: 700;
            color: #FFFFFF;
        }

        .membership-table .plan-recommend {
            display: inline-block;
            background: var(--color-amber);
            color: #1A1D22;
            font-size: 0.65rem;
            font-weight: 700;
            padding: 2px 8px;
            border-radius: 4px;
            margin-left: 8px;
        }

        .membership-table .check-icon {
            color: var(--color-sage);
            font-weight: 700;
        }

        .membership-table .cross-icon {
            color: #6B7280;
            font-weight: 400;
        }

        /* FAQ */
        .faq-section {
            padding: 48px 0;
            background: var(--color-bg-light);
            margin-bottom: 40px;
        }

        .faq-section .section-header {
            text-align: center;
            margin-bottom: 32px;
        }

        .faq-section .section-header h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #1A1D22;
            margin: 0 0 8px;
        }

        .faq-section .section-header p {
            font-size: 0.9rem;
            color: #6B7280;
            margin: 0;
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-xl);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(232, 179, 57, 0.35);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 0.9rem;
            font-weight: 600;
            color: #1A1D22;
            letter-spacing: 0.01em;
            transition: color var(--transition-base);
        }

        .faq-question:hover {
            color: var(--color-amber-dark);
        }

        .faq-question .faq-toggle-icon {
            font-size: 1.2rem;
            color: var(--color-mist);
            flex-shrink: 0;
            transition: transform var(--transition-base);
            line-height: 1;
        }

        .faq-item.open .faq-toggle-icon {
            transform: rotate(45deg);
            color: var(--color-amber);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 20px;
            font-size: 0.85rem;
            line-height: 1.8;
            color: #4B5563;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 20px 16px;
        }

        /* CTA Section */
        .cta-section {
            padding: 48px 0 56px;
            background: var(--color-surface);
        }

        .cta-banner {
            background: linear-gradient(135deg, #1A1D22 0%, #171A21 50%, #0F1117 100%);
            border-radius: var(--radius-2xl);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
            border: 1px solid var(--color-border-dark);
            box-shadow: var(--shadow-lg);
        }

        .cta-banner .cta-text {
            flex: 1;
            min-width: 280px;
        }

        .cta-banner .cta-text h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 8px;
            letter-spacing: 0.01em;
        }

        .cta-banner .cta-text p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            margin: 0;
            line-height: 1.7;
        }

        .cta-banner .cta-actions {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: var(--color-charcoal);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 24px;
            border-top: 1px solid var(--color-border-dark);
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #FFFFFF;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }

        .site-footer .footer-logo-dot {
            width: 8px;
            height: 8px;
            background: var(--color-amber);
            border-radius: 50%;
            display: inline-block;
        }

        .site-footer .footer-desc {
            font-size: 0.8rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            margin: 0;
        }

        .site-footer .footer-heading {
            font-size: 0.85rem;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 14px;
            letter-spacing: 0.01em;
        }

        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .site-footer .footer-links a {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-base);
        }

        .site-footer .footer-links a:hover {
            color: var(--color-amber);
        }

        .site-footer .footer-form {
            display: flex;
            gap: 8px;
        }

        .site-footer .footer-form input {
            flex: 1;
            border: 1px solid var(--color-border-dark);
            border-radius: 8px;
            padding: 10px 14px;
            font-size: 0.8rem;
            background: rgba(255, 255, 255, 0.05);
            color: #FFFFFF;
            min-width: 0;
        }

        .site-footer .footer-form input::placeholder {
            color: rgba(255, 255, 255, 0.35);
        }

        .site-footer .footer-form input:focus {
            border-color: var(--color-amber);
            background: rgba(255, 255, 255, 0.08);
            box-shadow: none;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid var(--color-border-dark);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.4);
        }

        .site-footer .footer-legal-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .site-footer .footer-legal-links a {
            color: rgba(255, 255, 255, 0.4);
            transition: color var(--transition-base);
        }

        .site-footer .footer-legal-links a:hover {
            color: var(--color-amber);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-links-desktop {
                gap: 2px;
            }
            .nav-link {
                padding: 8px 10px;
                font-size: 0.82rem;
            }
            .content-layout {
                grid-template-columns: 1fr;
            }
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links-desktop {
                display: none;
            }
            .nav-actions-desktop {
                display: none;
            }
            .mobile-nav-toggle {
                display: flex;
            }
            .page-hero {
                padding: 32px 0 28px;
            }
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .cards-grid {
                grid-template-columns: 1fr;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: flex-start;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-banner {
                padding: 28px 20px;
                flex-direction: column;
                text-align: center;
            }
            .cta-banner .cta-actions {
                justify-content: center;
            }
            .membership-section .section-header h2 {
                font-size: 1.3rem;
            }
            .faq-section .section-header h2 {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .page-hero h1 {
                font-size: 1.4rem;
            }
            .page-hero .hero-desc {
                font-size: 0.88rem;
            }
            .hero-meta-tags .tag {
                font-size: 0.7rem;
                padding: 4px 10px;
            }
            .content-card .card-body {
                padding: 14px 14px 16px;
            }
            .content-card .card-title {
                font-size: 0.95rem;
            }
            .content-card .card-excerpt {
                font-size: 0.8rem;
            }
            .membership-table {
                min-width: 560px;
                font-size: 0.75rem;
            }
            .membership-table tbody td,
            .membership-table thead th {
                padding: 10px 12px;
            }
            .cta-banner .cta-text h2 {
                font-size: 1.25rem;
            }
            .pagination .page-btn {
                min-width: 34px;
                height: 34px;
                font-size: 0.75rem;
            }
        }