/* roulang page: index */
:root {
            --color-primary: #FF5A5F;
            --color-secondary: #FFC857;
            --color-accent: #3DDC97;
            --color-bg: #1A1322;
            --color-panel: #241B2E;
            --color-text: #F6F1E8;
            --color-text-muted: #BEB3C9;
            --color-border: rgba(255, 255, 255, 0.08);
            --color-border-strong: rgba(255, 255, 255, 0.14);
            --color-primary-hover: #ff6f73;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.32);
            --radius-card: 18px;
            --radius-button: 999px;
            --radius-input: 12px;
            --nav-width: 280px;
            --nav-width-mobile: 0px;
            --section-padding-y: 80px;
            --container-padding-x: 48px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.85;
            font-size: 16px;
            font-weight: 400;
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-primary);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-text);
        }
        h1 {
            font-size: 36px;
            line-height: 1.2;
            font-weight: 800;
        }
        h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.25;
        }
        h3 {
            font-size: 20px;
            font-weight: 600;
            line-height: 1.3;
        }
        p {
            margin-bottom: 1rem;
            line-height: 1.85;
        }
        .container-main {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 var(--container-padding-x);
        }
        /* Sidebar Navigation */
        .sidebar-nav {
            position: fixed;
            left: 0;
            top: 0;
            width: var(--nav-width);
            height: 100vh;
            background-color: rgba(26, 19, 34, 0.96);
            backdrop-filter: blur(16px);
            border-right: 1px solid var(--color-border);
            z-index: 100;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition-base);
            padding: 32px 20px 20px;
            overflow-y: auto;
        }
        .sidebar-brand {
            font-size: 20px;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: 0.5px;
            line-height: 1.3;
            padding-bottom: 24px;
            border-bottom: 1px solid var(--color-border);
            margin-bottom: 24px;
            word-break: break-word;
        }
        .sidebar-brand span {
            color: var(--color-primary);
        }
        .sidebar-nav-links {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex: 1;
        }
        .sidebar-nav-links a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-muted);
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }
        .sidebar-nav-links a:hover {
            background-color: rgba(255, 90, 95, 0.10);
            color: var(--color-primary);
            border-color: rgba(255, 90, 95, 0.25);
        }
        .sidebar-nav-links a.active {
            background-color: rgba(255, 90, 95, 0.15);
            color: var(--color-primary);
            border-color: rgba(255, 90, 95, 0.3);
            font-weight: 600;
        }
        .sidebar-nav-links .nav-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }
        .sidebar-bottom {
            padding-top: 20px;
            border-top: 1px solid var(--color-border);
        }
        .sidebar-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background-color: var(--color-panel);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-input);
            padding: 10px 14px;
            font-size: 14px;
            color: var(--color-text-muted);
        }
        .sidebar-search input {
            flex: 1;
            background: transparent;
            color: var(--color-text);
            font-size: 14px;
        }
        .sidebar-search input::placeholder {
            color: var(--color-text-muted);
        }
        /* Main Content Area */
        .main-content {
            margin-left: var(--nav-width);
            min-height: 100vh;
        }
        /* Mobile Top Nav */
        .mobile-top-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background-color: rgba(26, 19, 34, 0.95);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            z-index: 99;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
        }
        .mobile-brand {
            font-size: 16px;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: 0.3px;
        }
        .mobile-brand span {
            color: var(--color-primary);
        }
        .hamburger-btn {
            width: 40px;
            height: 40px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            background: transparent;
            border-radius: 10px;
            transition: background var(--transition-fast);
        }
        .hamburger-btn:hover {
            background-color: rgba(255, 90, 95, 0.15);
        }
        .hamburger-btn span {
            display: block;
            width: 22px;
            height: 2px;
            background-color: var(--color-text);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            background-color: rgba(26, 19, 34, 0.98);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            z-index: 98;
            padding: 16px 20px;
            flex-direction: column;
            gap: 6px;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            padding: 12px 16px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-muted);
            transition: all var(--transition-fast);
        }
        .mobile-menu a:hover {
            background-color: rgba(255, 90, 95, 0.10);
            color: var(--color-primary);
        }
        .mobile-menu a.active {
            background-color: rgba(255, 90, 95, 0.15);
            color: var(--color-primary);
            font-weight: 600;
        }
        /* Section Base */
        .section-block {
            padding: var(--section-padding-y) 0;
            border-bottom: 1px solid var(--color-border);
        }
        .section-block:nth-child(even) {
            background-color: rgba(36, 27, 46, 0.45);
        }
        .section-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.3px;
            background-color: rgba(255, 90, 95, 0.10);
            color: var(--color-primary);
            border: 1px solid rgba(255, 90, 95, 0.25);
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.25;
        }
        .section-desc {
            font-size: 16px;
            color: var(--color-text-muted);
            max-width: 680px;
            line-height: 1.85;
            margin-bottom: 32px;
        }
        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-button);
            background-color: var(--color-primary);
            color: #1A1322;
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
            border: 2px solid var(--color-primary);
        }
        .btn-primary:hover {
            background-color: var(--color-primary-hover);
            border-color: var(--color-primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 90, 95, 0.3);
            color: #1A1322;
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 2px;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-button);
            background-color: transparent;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
            border: 2px solid var(--color-primary);
        }
        .btn-secondary:hover {
            background-color: rgba(255, 90, 95, 0.10);
            transform: translateY(-2px);
            color: var(--color-primary);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 2px;
        }
        .btn-sm {
            padding: 10px 22px;
            font-size: 14px;
        }
        /* Cards */
        .card {
            background-color: var(--color-panel);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            overflow: hidden;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(255, 90, 95, 0.35);
        }
        .card-image {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }
        .card:hover .card-image img {
            transform: scale(1.05);
        }
        .card-body {
            padding: 20px 22px;
        }
        .card-title {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-text {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.6;
        }
        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background-color: rgba(255, 90, 95, 0.10);
            color: var(--color-primary);
            border: 1px solid rgba(255, 90, 95, 0.3);
            letter-spacing: 0.2px;
        }
        .badge-green {
            background-color: rgba(61, 220, 151, 0.10);
            color: var(--color-accent);
            border-color: rgba(61, 220, 151, 0.3);
        }
        .badge-yellow {
            background-color: rgba(255, 200, 87, 0.10);
            color: var(--color-secondary);
            border-color: rgba(255, 200, 87, 0.3);
        }
        .tag {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            background-color: rgba(255, 255, 255, 0.04);
            color: var(--color-text-muted);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
            cursor: pointer;
            letter-spacing: 0.2px;
        }
        .tag:hover {
            background-color: rgba(255, 90, 95, 0.15);
            color: var(--color-primary);
            border-color: rgba(255, 90, 95, 0.3);
        }
        /* FAQ */
        .faq-item {
            background-color: var(--color-panel);
            border: 1px solid var(--color-border);
            border-radius: 14px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item.open {
            border-color: rgba(255, 90, 95, 0.45);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--color-text);
            gap: 16px;
            user-select: none;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background-color: rgba(255, 90, 95, 0.05);
        }
        .faq-indicator {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--color-primary);
            transition: transform var(--transition-fast);
            font-weight: 300;
        }
        .faq-item.open .faq-indicator {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.25s ease;
            padding: 0 22px;
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 22px 20px;
        }
        /* Footer */
        .site-footer {
            background-color: #150e1d;
            padding: 56px 0 32px;
            border-top: 1px solid var(--color-border);
        }
        .footer-brand {
            font-size: 18px;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 12px;
        }
        .footer-brand span {
            color: var(--color-primary);
        }
        .footer-link {
            display: block;
            font-size: 14px;
            color: var(--color-text-muted);
            padding: 4px 0;
            transition: color var(--transition-fast);
        }
        .footer-link:hover {
            color: var(--color-primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--color-border);
            margin-top: 32px;
            padding-top: 20px;
            font-size: 13px;
            color: var(--color-text-muted);
            text-align: center;
        }
        /* Form */
        .form-input {
            background-color: var(--color-panel);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-input);
            padding: 14px 18px;
            font-size: 15px;
            color: var(--color-text);
            width: 100%;
            transition: all var(--transition-fast);
        }
        .form-input::placeholder {
            color: var(--color-text-muted);
        }
        .form-input:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(255, 90, 95, 0.2);
        }
        /* Step indicator */
        .step-dot {
            width: 44px;
            height: 44px;
            border-radius: 999px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            background-color: var(--color-primary);
            color: #1A1322;
            flex-shrink: 0;
            border: 2px solid var(--color-primary);
        }
        /* Timeline */
        .timeline-item {
            display: flex;
            gap: 16px;
            padding-bottom: 24px;
            border-left: 2px solid var(--color-border);
            margin-left: 8px;
            padding-left: 24px;
            position: relative;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -7px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: var(--color-primary);
            border: 2px solid var(--color-bg);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .sidebar-nav {
                transform: translateX(-100%);
            }
            .sidebar-nav.open {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-top-nav {
                display: flex;
            }
            .main-content {
                padding-top: 60px;
            }
            :root {
                --section-padding-y: 56px;
                --container-padding-x: 24px;
            }
            h1 {
                font-size: 28px;
            }
            h2 {
                font-size: 24px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-padding-y: 44px;
                --container-padding-x: 20px;
            }
            h1 {
                font-size: 24px;
            }
            h2 {
                font-size: 21px;
            }
            h3 {
                font-size: 17px;
            }
            .section-title {
                font-size: 21px;
            }
            .btn-primary, .btn-secondary {
                padding: 12px 24px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }
            .card-body {
                padding: 16px 18px;
            }
        }
        @media (max-width: 480px) {
            :root {
                --section-padding-y: 36px;
                --container-padding-x: 16px;
            }
            h1 {
                font-size: 22px;
            }
            .section-desc {
                font-size: 14px;
            }
        }
        .focus-visible-ring:focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 2px;
        }

/* roulang page: category1 */
:root {
            --color-primary: #FF5A5F;
            --color-secondary: #FFC857;
            --color-accent: #3DDC97;
            --color-bg: #1A1322;
            --color-panel: #241B2E;
            --color-panel-alt: #2B2038;
            --color-text: #F6F1E8;
            --color-text-muted: #BEB3C9;
            --color-border: rgba(255, 255, 255, 0.08);
            --color-border-strong: rgba(255, 255, 255, 0.14);
            --color-primary-hover: #ff6f73;
            --color-primary-10: rgba(255, 90, 95, 0.10);
            --color-primary-15: rgba(255, 90, 95, 0.15);
            --color-primary-20: rgba(255, 90, 95, 0.20);
            --color-primary-30: rgba(255, 90, 95, 0.30);
            --color-secondary-15: rgba(255, 200, 87, 0.15);
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.32);
            --shadow-glow: 0 0 24px rgba(255, 90, 95, 0.18);
            --radius-card: 18px;
            --radius-card-sm: 12px;
            --radius-button: 999px;
            --radius-input: 12px;
            --nav-width: 280px;
            --section-padding-y: 72px;
            --container-padding-x: 48px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.45s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.85;
            font-size: 16px;
            font-weight: 400;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--color-primary);
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        button {
            cursor: pointer;
        }

        ::selection {
            background: rgba(255, 90, 95, 0.35);
            color: var(--color-text);
        }

        .container-main {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 var(--container-padding-x);
        }

        /* ========== Sidebar Navigation ========== */
        .sidebar-nav {
            position: fixed;
            left: 0;
            top: 0;
            width: var(--nav-width);
            height: 100vh;
            background-color: rgba(26, 19, 34, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-right: 1px solid var(--color-border);
            z-index: 100;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition-base);
            padding: 28px 18px 18px;
            overflow-y: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border-strong) transparent;
        }

        .sidebar-nav::-webkit-scrollbar {
            width: 4px;
        }

        .sidebar-nav::-webkit-scrollbar-thumb {
            background-color: var(--color-border-strong);
            border-radius: 4px;
        }

        .sidebar-brand {
            font-size: 19px;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: 0.5px;
            line-height: 1.35;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--color-border);
            margin-bottom: 20px;
            word-break: break-word;
        }

        .sidebar-brand span {
            color: var(--color-primary);
        }

        .sidebar-nav-links {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex: 1;
        }

        .sidebar-nav-links a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-muted);
            transition: all var(--transition-fast);
            border: 1px solid transparent;
            position: relative;
            letter-spacing: 0.2px;
        }

        .sidebar-nav-links a:hover {
            background-color: var(--color-primary-10);
            color: var(--color-primary);
            border-color: rgba(255, 90, 95, 0.28);
            transform: translateX(2px);
        }

        .sidebar-nav-links a.active {
            background-color: var(--color-primary-15);
            color: var(--color-primary);
            border-color: var(--color-primary-30);
            font-weight: 600;
            box-shadow: inset 0 0 0 1px rgba(255, 90, 95, 0.08);
        }

        .sidebar-nav-links a.active::after {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 22px;
            background-color: var(--color-primary);
            border-radius: 0 4px 4px 0;
        }

        .sidebar-nav-links .nav-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            opacity: 0.8;
        }

        .sidebar-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background-color: var(--color-panel);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-input);
            padding: 10px 14px;
            font-size: 14px;
            color: var(--color-text-muted);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            margin-top: 12px;
        }

        .sidebar-search:focus-within {
            border-color: rgba(255, 90, 95, 0.45);
            box-shadow: 0 0 0 3px var(--color-primary-10);
        }

        .sidebar-search svg {
            flex-shrink: 0;
            opacity: 0.6;
        }

        .sidebar-search input {
            flex: 1;
            background: transparent;
            color: var(--color-text);
            font-size: 14px;
            min-width: 0;
        }

        .sidebar-search input::placeholder {
            color: var(--color-text-muted);
            opacity: 0.7;
        }

        /* ========== Main Content Area ========== */
        .main-content {
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ========== Mobile Top Nav ========== */
        .mobile-top-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background-color: rgba(26, 19, 34, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--color-border);
            z-index: 99;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
        }

        .mobile-brand {
            font-size: 16px;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .mobile-brand span {
            color: var(--color-primary);
        }

        .hamburger-btn {
            width: 42px;
            height: 42px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            border-radius: 10px;
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }

        .hamburger-btn:hover {
            border-color: var(--color-primary-30);
            background-color: var(--color-primary-10);
        }

        .hamburger-btn span {
            display: block;
            width: 20px;
            height: 2px;
            background-color: var(--color-text);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .hamburger-btn.open span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }

        .hamburger-btn.open span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

        .hamburger-btn.open span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        /* Mobile Drawer */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            background-color: rgba(26, 19, 34, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--color-border);
            z-index: 98;
            padding: 16px 20px 20px;
            transform: translateY(-8px);
            opacity: 0;
            pointer-events: none;
            transition: all var(--transition-base);
        }

        .mobile-drawer.open {
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-drawer-links {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-drawer-links a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 13px 16px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-muted);
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

        .mobile-drawer-links a:hover {
            background-color: var(--color-primary-10);
            color: var(--color-primary);
        }

        .mobile-drawer-links a.active {
            background-color: var(--color-primary-15);
            color: var(--color-primary);
            border-color: var(--color-primary-30);
            font-weight: 600;
        }

        .mobile-drawer-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background-color: var(--color-panel);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-input);
            padding: 10px 14px;
            margin-top: 12px;
        }

        .mobile-drawer-search input {
            flex: 1;
            background: transparent;
            color: var(--color-text);
            font-size: 14px;
            min-width: 0;
        }

        .mobile-drawer-search input::placeholder {
            color: var(--color-text-muted);
        }

        /* ========== Section Common ========== */
        .section-block {
            padding: var(--section-padding-y) 0;
            position: relative;
        }

        .section-block-alt {
            background-color: var(--color-panel);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.3px;
            color: var(--color-text);
            margin-bottom: 10px;
        }

        .section-header p {
            font-size: 15px;
            color: var(--color-text-muted);
            max-width: 560px;
            line-height: 1.7;
        }

        .section-badge {
            display: inline-block;
            background-color: var(--color-primary-15);
            color: var(--color-primary);
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            border: 1px solid var(--color-primary-30);
            margin-bottom: 12px;
        }

        /* ========== Breadcrumb ========== */
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-muted);
            flex-wrap: wrap;
            margin-bottom: 12px;
        }

        .breadcrumb-nav a {
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb-nav .separator {
            opacity: 0.5;
            font-size: 11px;
        }

        .breadcrumb-nav .current {
            color: var(--color-text);
            font-weight: 600;
        }

        /* ========== Category H1 Bar ========== */
        .category-h1-bar {
            padding: 36px 0 28px;
            background-color: var(--color-panel);
            border-bottom: 1px solid var(--color-border);
            position: relative;
            overflow: hidden;
        }

        .category-h1-bar::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary), var(--color-accent));
            opacity: 0.7;
        }

        .category-h1-bar h1 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: 0.5px;
            color: var(--color-text);
            margin-bottom: 8px;
        }

        .category-h1-bar .cat-desc {
            font-size: 15px;
            color: var(--color-text-muted);
            max-width: 640px;
            line-height: 1.75;
        }

        /* ========== Filter Toolbar ========== */
        .filter-toolbar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            padding: 16px 0;
            border-bottom: 1px solid var(--color-border);
        }

        .filter-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            flex: 1;
            min-width: 200px;
        }

        .filter-chip {
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text-muted);
            background-color: transparent;
            border: 1px solid var(--color-border-strong);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.2px;
        }

        .filter-chip:hover {
            border-color: var(--color-primary-30);
            color: var(--color-primary);
            background-color: var(--color-primary-10);
        }

        .filter-chip.active {
            background-color: var(--color-primary-15);
            border-color: var(--color-primary-30);
            color: var(--color-primary);
            font-weight: 600;
            box-shadow: 0 0 0 2px var(--color-primary-10);
        }

        .sort-select-wrap {
            position: relative;
        }

        .sort-select {
            appearance: none;
            -webkit-appearance: none;
            padding: 8px 36px 8px 16px;
            border-radius: var(--radius-input);
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text);
            background-color: var(--color-panel);
            border: 1px solid var(--color-border-strong);
            cursor: pointer;
            transition: all var(--transition-fast);
            letter-spacing: 0.2px;
            min-width: 150px;
        }

        .sort-select:hover {
            border-color: var(--color-primary-30);
        }

        .sort-select:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px var(--color-primary-10);
        }

        .sort-select-wrap::after {
            content: '';
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            width: 0;
            height: 0;
            border-left: 5px solid transparent;
            border-right: 5px solid transparent;
            border-top: 6px solid var(--color-text-muted);
            pointer-events: none;
        }

        /* ========== Category Card Grid ========== */
        .category-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .category-card {
            background-color: var(--color-panel);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
        }

        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(255, 90, 95, 0.35);
        }

        .category-card .card-image {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
            border-bottom: 1px solid var(--color-border);
        }

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

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

        .category-card .card-image::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60%;
            background: linear-gradient(to top, rgba(26, 19, 34, 0.6), transparent);
            pointer-events: none;
        }

        .category-card .card-badge-top {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            background-color: rgba(26, 19, 34, 0.8);
            backdrop-filter: blur(8px);
            color: var(--color-secondary);
            font-size: 11px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            border: 1px solid rgba(255, 200, 87, 0.3);
            letter-spacing: 0.3px;
        }

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

        .category-card .card-title {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--color-text);
            margin-bottom: 8px;
            letter-spacing: 0.2px;
            transition: color var(--transition-fast);
        }

        .category-card:hover .card-title {
            color: var(--color-primary);
        }

        .category-card .card-excerpt {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.65;
            flex: 1;
            margin-bottom: 12px;
        }

        .category-card .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 12px;
            color: var(--color-text-muted);
            border-top: 1px solid var(--color-border);
            padding-top: 12px;
        }

        .category-card .card-meta .meta-dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background-color: var(--color-accent);
            flex-shrink: 0;
        }

        /* ========== Load More Button ========== */
        .load-more-wrap {
            display: flex;
            justify-content: center;
            margin-top: 32px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-button);
            background-color: var(--color-primary);
            color: #1A1322;
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 0.5px;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(255, 90, 95, 0.3);
            border: 1px solid transparent;
        }

        .btn-primary:hover {
            background-color: var(--color-primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 90, 95, 0.4);
            color: #1A1322;
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 2px;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255, 90, 95, 0.25);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: var(--radius-button);
            background-color: transparent;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.5px;
            border: 1.5px solid var(--color-primary-30);
            transition: all var(--transition-base);
        }

        .btn-outline:hover {
            background-color: var(--color-primary-10);
            border-color: var(--color-primary);
            transform: translateY(-2px);
            color: var(--color-primary);
        }

        .btn-outline:focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 2px;
        }

        /* ========== Mini Topic Cards ========== */
        .mini-topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 14px;
        }

        .mini-topic-card {
            background-color: var(--color-panel);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card-sm);
            padding: 16px;
            display: flex;
            align-items: center;
            gap: 12px;
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .mini-topic-card:hover {
            border-color: var(--color-primary-30);
            background-color: var(--color-panel-alt);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
        }

        .mini-topic-card .mini-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 16px;
            font-weight: 700;
            background-color: var(--color-primary-15);
            color: var(--color-primary);
            border: 1px solid var(--color-primary-30);
        }

        .mini-topic-card:nth-child(2) .mini-icon {
            background-color: var(--color-secondary-15);
            color: var(--color-secondary);
            border-color: rgba(255, 200, 87, 0.3);
        }

        .mini-topic-card:nth-child(3) .mini-icon {
            background-color: rgba(61, 220, 151, 0.12);
            color: var(--color-accent);
            border-color: rgba(61, 220, 151, 0.3);
        }

        .mini-topic-card .mini-info h3 {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.4;
            margin-bottom: 2px;
        }

        .mini-topic-card .mini-info p {
            font-size: 12px;
            color: var(--color-text-muted);
            line-height: 1.5;
        }

        /* ========== Tag Cloud ========== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-item {
            padding: 7px 18px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text);
            background-color: var(--color-panel);
            border: 1px solid var(--color-border-strong);
            transition: all var(--transition-fast);
            letter-spacing: 0.3px;
        }

        .tag-item:hover {
            border-color: var(--color-primary-30);
            color: var(--color-primary);
            background-color: var(--color-primary-10);
            transform: translateY(-1px);
        }

        .tag-item:focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 2px;
        }

        /* ========== FAQ Accordion ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 760px;
        }

        .faq-item {
            background-color: var(--color-panel);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card-sm);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item.active {
            border-color: var(--color-primary-30);
            box-shadow: 0 0 0 2px var(--color-primary-10);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            cursor: pointer;
            width: 100%;
            transition: background-color var(--transition-fast);
            user-select: none;
        }

        .faq-question:hover {
            background-color: rgba(255, 90, 95, 0.05);
        }

        .faq-question span {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.5;
            letter-spacing: 0.2px;
        }

        .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background-color: var(--color-primary-15);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 14px;
            font-weight: 700;
            transition: all var(--transition-base);
            border: 1px solid var(--color-primary-30);
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background-color: var(--color-primary);
            color: #1A1322;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            padding: 0 20px;
        }

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

        .faq-answer p {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
            border-top: 1px solid var(--color-border);
            padding-top: 14px;
        }

        /* ========== Data Stats ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .stat-block {
            background-color: var(--color-panel);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card-sm);
            padding: 22px 18px;
            text-align: center;
            transition: all var(--transition-fast);
        }

        .stat-block:hover {
            border-color: var(--color-primary-30);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }

        .stat-number {
            font-size: 28px;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.2;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }

        .stat-block:nth-child(2) .stat-number {
            color: var(--color-secondary);
        }

        .stat-block:nth-child(3) .stat-number {
            color: var(--color-accent);
        }

        .stat-label {
            font-size: 13px;
            color: var(--color-text-muted);
            font-weight: 500;
            letter-spacing: 0.3px;
        }

        /* ========== CTA Subscribe ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, #FF7A3D 50%, var(--color-secondary) 100%);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            position: relative;
            overflow: hidden;
            box-shadow: 0 12px 40px rgba(255, 90, 95, 0.25);
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 20%;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .cta-text h2 {
            font-size: 24px;
            font-weight: 800;
            color: #1A1322;
            line-height: 1.4;
            letter-spacing: 0.3px;
            margin-bottom: 8px;
        }

        .cta-text p {
            font-size: 14px;
            color: rgba(26, 19, 34, 0.7);
            line-height: 1.7;
            max-width: 420px;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 220px;
            padding: 13px 18px;
            border-radius: var(--radius-input);
            background-color: rgba(26, 19, 34, 0.7);
            color: var(--color-text);
            font-size: 14px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: all var(--transition-fast);
            letter-spacing: 0.2px;
        }

        .subscribe-form input::placeholder {
            color: rgba(246, 241, 232, 0.5);
        }

        .subscribe-form input:focus {
            border-color: #FFC857;
            box-shadow: 0 0 0 3px rgba(255, 200, 87, 0.25);
            background-color: rgba(26, 19, 34, 0.85);
        }

        .subscribe-form button {
            padding: 13px 28px;
            border-radius: var(--radius-button);
            background-color: #1A1322;
            color: var(--color-text);
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 0.5px;
            transition: all var(--transition-base);
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .subscribe-form button:hover {
            background-color: #2B2038;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
        }

        .subscribe-form button:focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 2px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background-color: var(--color-panel);
            border-top: 1px solid var(--color-border);
            padding: 48px 0 28px;
            margin-top: 0;
        }

        .footer-brand {
            font-size: 18px;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .footer-brand span {
            color: var(--color-primary);
        }

        .footer-link {
            display: block;
            font-size: 14px;
            color: var(--color-text-muted);
            padding: 5px 0;
            transition: all var(--transition-fast);
            line-height: 1.6;
        }

        .footer-link:hover {
            color: var(--color-primary);
            transform: translateX(2px);
        }

        .footer-bottom {
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid var(--color-border);
            font-size: 13px;
            color: var(--color-text-muted);
            text-align: center;
            letter-spacing: 0.3px;
        }

        /* ========== Focus Visible ========== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 2px;
        }

        /* ========== Responsive Breakpoints ========== */
        @media (max-width: 1100px) {
            :root {
                --container-padding-x: 32px;
                --section-padding-y: 56px;
            }
            .category-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .mini-topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 1024px) {
            .sidebar-nav {
                display: none;
            }
            .mobile-top-nav {
                display: flex;
            }
            .mobile-drawer {
                display: block;
            }
            .main-content {
                margin-left: 0;
                padding-top: 60px;
            }
            :root {
                --container-padding-x: 24px;
                --section-padding-y: 48px;
            }
        }

        @media (max-width: 768px) {
            .category-card-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .mini-topic-grid {
                grid-template-columns: 1fr;
            }
            .category-h1-bar h1 {
                font-size: 26px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .cta-content {
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-form {
                width: 100%;
            }
            .subscribe-form input {
                min-width: 0;
                flex: 1;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .filter-chips {
                width: 100%;
            }
            .cta-section {
                padding: 32px 24px;
                border-radius: var(--radius-card-sm);
            }
        }

        @media (max-width: 520px) {
            :root {
                --container-padding-x: 16px;
                --section-padding-y: 36px;
            }
            .category-h1-bar {
                padding: 24px 0 20px;
            }
            .category-h1-bar h1 {
                font-size: 24px;
            }
            .category-h1-bar .cat-desc {
                font-size: 14px;
            }
            .section-header h2 {
                font-size: 20px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-number {
                font-size: 22px;
            }
            .stat-label {
                font-size: 12px;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
                justify-content: center;
            }
            .subscribe-form button {
                width: 100%;
            }
            .subscribe-form input {
                width: 100%;
                min-width: 100%;
            }
            .mobile-brand {
                font-size: 14px;
            }
            .faq-question span {
                font-size: 14px;
            }
            .mini-topic-card {
                padding: 12px;
            }
        }