/* roulang page: index */
:root {
            --primary: #2F6FED;
            --primary-dark: #1B4ED8;
            --primary-soft: #EAF1FE;
            --accent: #FF7A45;
            --accent-dark: #F25B19;
            --accent-soft: #FFF1E9;
            --ink-900: #0F172A;
            --ink-700: #334155;
            --ink-500: #64748B;
            --bg-white: #FFFFFF;
            --bg-soft: #F6F8FC;
            --bg-deep: #0E1B33;
            --border: #E7EBF2;
            --font-base: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 9px;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 14px 34px rgba(15, 23, 42, 0.1);
            --shadow-lg: 0 24px 64px rgba(15, 23, 42, 0.14);
            --transition: 0.25s 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: var(--font-base);
            font-size: 16px;
            line-height: 1.75;
            color: var(--ink-700);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition), background var(--transition), border-color var(--transition);
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        .grid-container.fluid {
            max-width: 100%;
            padding: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1;
            padding: 14px 28px;
            border-radius: 999px;
            border: 2px solid transparent;
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 16px rgba(47, 111, 237, 0.32);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(47, 111, 237, 0.38);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 10px rgba(47, 111, 237, 0.3);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 6px 16px rgba(255, 122, 69, 0.32);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(255, 122, 69, 0.34);
        }
        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
        }
        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.12);
        }
        .btn-outline-dark {
            background: transparent;
            border-color: var(--border);
            color: var(--ink-700);
        }
        .btn-outline-dark:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-sm {
            padding: 10px 20px;
            font-size: 14px;
        }
        .btn:focus-visible,
        a:focus-visible,
        input:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(47, 111, 237, 0.45);
            outline-offset: 2px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            min-height: 74px;
            gap: 24px;
        }
        .brand-logo {
            font-size: 23px;
            font-weight: 900;
            letter-spacing: 0.4px;
            color: var(--ink-900);
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1.2;
        }
        .brand-logo .logo-main {
            color: var(--ink-900);
        }
        .brand-logo .logo-accent {
            color: var(--primary);
        }
        .brand-logo .logo-badge {
            font-size: 11px;
            font-weight: 700;
            background: var(--primary-soft);
            color: var(--primary);
            padding: 4px 10px;
            border-radius: 999px;
            letter-spacing: 0.5px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 34px;
        }
        .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--ink-700);
            padding: 24px 2px 22px;
            line-height: 1;
            white-space: nowrap;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 14px;
            width: 0;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            transition: width 0.3s ease;
        }
        .nav-link:hover::after,
        .nav-link.is-active::after {
            width: 100%;
        }
        .nav-link:hover,
        .nav-link.is-active {
            color: var(--primary);
        }
        .header-tools {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-left: auto;
        }
        .search-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            background: var(--bg-soft);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 8px 14px;
            min-width: 220px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .search-wrap:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.14);
            background: #fff;
        }
        .search-wrap i {
            color: var(--ink-500);
            font-size: 14px;
        }
        .search-input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            color: var(--ink-900);
            width: 100%;
        }
        .search-input::placeholder {
            color: var(--ink-500);
        }
        .search-cmd {
            font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
            font-size: 11px;
            background: var(--ink-900);
            color: #fff;
            padding: 3px 8px;
            border-radius: 6px;
            line-height: 1.4;
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border: 1px solid var(--border);
            border-radius: 10px;
            background: var(--bg-white);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
        }
        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--ink-700);
            border-radius: 2px;
            transition: transform var(--transition), opacity var(--transition);
        }
        .nav-toggle.is-active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.is-active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.is-active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: #fff;
            padding: 120px 0 130px;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(105deg, rgba(11, 21, 45, 0.85) 10%, rgba(26, 46, 90, 0.55) 54%, rgba(36, 88, 150, 0.38) 100%);
        }
        .hero-inner {
            position: relative;
            z-index: 2;
        }
        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1.5px;
            color: rgba(255, 255, 255, 0.85);
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.22);
            padding: 8px 16px;
            border-radius: 999px;
            margin-bottom: 26px;
        }
        .hero-eyebrow i {
            color: var(--accent);
        }
        .hero-title {
            font-size: clamp(38px, 5.5vw, 64px);
            font-weight: 900;
            line-height: 1.15;
            color: #fff;
            letter-spacing: 0.5px;
            margin-bottom: 22px;
        }
        .hero-title .accent-line {
            display: block;
            background: linear-gradient(120deg, #FFB38A, #FF7A45);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .hero-desc {
            font-size: 17px;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.85);
            max-width: 620px;
            margin-bottom: 36px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 56px;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 36px;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .hero-stat strong {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .hero-stat strong small {
            font-size: 14px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.7);
            margin-left: 4px;
        }
        .hero-stat em {
            font-style: normal;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
        }
        .section {
            padding: 96px 0;
        }
        .section-alt {
            background: var(--bg-soft);
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 60px;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: clamp(28px, 3.4vw, 42px);
            font-weight: 800;
            color: var(--ink-900);
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .section-sub {
            font-size: 16px;
            color: var(--ink-500);
            line-height: 1.8;
        }
        .cap-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 38px 28px;
            height: 100%;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            position: relative;
            overflow: hidden;
        }
        .cap-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(47, 111, 237, 0.3);
        }
        .cap-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 22px;
        }
        .cap-card:nth-child(2) .cap-icon {
            background: var(--accent-soft);
            color: var(--accent);
        }
        .cap-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--ink-900);
            margin-bottom: 12px;
        }
        .cap-card p {
            font-size: 15px;
            color: var(--ink-500);
            line-height: 1.8;
            margin-bottom: 0;
        }
        .category-wrap {
            display: flex;
            align-items: center;
            gap: 48px;
        }
        .category-visual {
            flex: 0 0 44%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .category-visual img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }
        .category-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(15, 23, 42, 0.22), transparent 50%);
        }
        .category-cards {
            flex: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .category-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            transition: all var(--transition);
            position: relative;
        }
        .category-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
            transform: translateY(-3px);
        }
        .category-card i {
            font-size: 18px;
            color: var(--primary);
            margin-bottom: 12px;
            display: inline-block;
        }
        .category-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--ink-900);
            margin-bottom: 6px;
        }
        .category-card p {
            font-size: 13px;
            color: var(--ink-500);
            line-height: 1.65;
            margin-bottom: 10px;
        }
        .category-card a {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
        }
        .category-card a:hover {
            color: var(--primary-dark);
        }
        .stat-band {
            background: var(--bg-deep);
            color: #fff;
            padding: 84px 0;
            position: relative;
            overflow: hidden;
        }
        .stat-band::before {
            content: '';
            position: absolute;
            width: 480px;
            height: 480px;
            border-radius: 50%;
            background: rgba(47, 111, 237, 0.2);
            filter: blur(90px);
            top: -180px;
            right: -80px;
        }
        .stat-band .section-title {
            color: #fff;
        }
        .stat-band .section-sub {
            color: rgba(255, 255, 255, 0.7);
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-top: 20px;
        }
        .stat-block {
            text-align: center;
            padding: 32px 20px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            transition: background var(--transition);
        }
        .stat-block:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .stat-block strong {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            display: block;
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-block span {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.68);
        }
        .news-grid .news-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .news-grid .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .news-thumb {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }
        .news-card:hover .news-thumb img {
            transform: scale(1.05);
        }
        .news-badge {
            position: absolute;
            left: 14px;
            top: 14px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(15, 23, 42, 0.78);
            color: #fff;
            padding: 5px 12px;
            border-radius: 999px;
            backdrop-filter: blur(6px);
        }
        .news-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .news-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--ink-900);
            line-height: 1.55;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-title a:hover {
            color: var(--primary);
        }
        .news-desc {
            font-size: 14px;
            color: var(--ink-500);
            line-height: 1.75;
            margin-bottom: 18px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-meta {
            margin-top: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }
        .news-time {
            font-size: 13px;
            color: var(--ink-500);
        }
        .news-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .news-more:hover {
            color: var(--primary-dark);
        }
        .no-data {
            background: var(--bg-soft);
            border: 1px dashed var(--border);
            border-radius: var(--radius-lg);
            padding: 60px 24px;
            text-align: center;
            color: var(--ink-500);
            font-size: 16px;
        }
        .flow-section .section-head {
            margin-bottom: 50px;
        }
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            counter-reset: flow;
        }
        .flow-step {
            position: relative;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 38px 28px 30px;
            transition: all var(--transition);
        }
        .flow-step:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }
        .flow-step::before {
            counter-increment: flow;
            content: "0" counter(flow);
            font-size: 40px;
            font-weight: 900;
            color: rgba(47, 111, 237, 0.16);
            line-height: 1;
            display: block;
            margin-bottom: 18px;
        }
        .flow-step h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink-900);
            margin-bottom: 10px;
        }
        .flow-step p {
            font-size: 14px;
            color: var(--ink-500);
            line-height: 1.75;
            margin-bottom: 0;
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            background: var(--bg-white);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(47, 111, 237, 0.35);
        }
        .faq-item.open {
            border-color: rgba(47, 111, 237, 0.45);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink-900);
            user-select: none;
        }
        .faq-question i {
            color: var(--primary);
            font-size: 14px;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-answer-inner {
            padding: 0 24px 22px;
            font-size: 15px;
            color: var(--ink-500);
            line-height: 1.85;
        }
        .cta-band {
            position: relative;
            background: linear-gradient(120deg, rgba(11, 21, 45, 0.92), rgba(23, 50, 96, 0.82)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            color: #fff;
            border-radius: var(--radius-lg);
            padding: 80px 64px;
            overflow: hidden;
        }
        .cta-band .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 620px;
        }
        .cta-band h2 {
            font-size: clamp(26px, 3vw, 40px);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .cta-band p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 30px;
            line-height: 1.8;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .section-cta-outter {
            padding: 40px 0 96px;
        }
        .site-footer {
            background: var(--bg-deep);
            color: rgba(255, 255, 255, 0.6);
            padding: 70px 0 30px;
        }
        .footer-top {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            justify-content: space-between;
            padding-bottom: 46px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 30px;
        }
        .footer-brand .brand-logo {
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand .brand-logo .logo-accent {
            color: #7BA6FF;
        }
        .footer-brand p {
            font-size: 14px;
            max-width: 360px;
            line-height: 1.75;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            padding: 6px 0;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
        }
        @media screen and (max-width: 1024px) {
            .main-nav {
                gap: 22px;
            }
            .search-wrap {
                min-width: 170px;
            }
            .stat-grid {
                gap: 20px;
            }
            .category-wrap {
                flex-direction: column;
                gap: 36px;
            }
            .category-visual {
                flex: none;
                width: 100%;
            }
            .category-cards {
                width: 100%;
            }
        }
        @media screen and (max-width: 768px) {
            .section {
                padding: 70px 0;
            }
            .header-inner {
                flex-wrap: wrap;
                min-height: auto;
                padding: 16px 0;
                gap: 12px;
            }
            .brand-logo {
                font-size: 20px;
            }
            .header-tools {
                margin-left: auto;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                background: var(--bg-white);
                border-top: 1px solid var(--border);
                margin-top: 8px;
                padding: 10px 0 16px;
            }
            .main-nav.is-open {
                display: flex;
            }
            .nav-link {
                padding: 14px 4px;
                font-size: 16px;
                border-bottom: 1px solid var(--bg-soft);
            }
            .nav-link::after {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .search-wrap {
                display: none;
            }
            .flow-grid {
                grid-template-columns: 1fr;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
            .category-cards {
                grid-template-columns: 1fr 1fr;
            }
            .cta-band {
                padding: 50px 28px;
            }
            .hero {
                padding: 90px 0 90px;
            }
            .hero-title {
                font-size: 36px;
            }
            .hero-stats {
                gap: 24px;
            }
            .hero-actions .btn {
                padding: 12px 22px;
            }
        }
        @media screen and (max-width: 520px) {
            .grid-container {
                padding-left: 18px;
                padding-right: 18px;
            }
            .category-cards {
                grid-template-columns: 1fr;
            }
            .stat-grid {
                grid-template-columns: 1fr;
            }
            .hero-stats {
                flex-direction: column;
                gap: 18px;
            }
            .hero-title {
                font-size: 30px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .footer-top {
                flex-direction: column;
                gap: 30px;
            }
            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-actions .btn {
                width: 100%;
            }
        }

/* roulang page: article */
:root {
            --primary: #16255c;
            --primary-light: #1f337a;
            --primary-dark: #0d1638;
            --accent: #f58a1e;
            --accent-light: #ffa94d;
            --accent-dark: #d9710a;
            --bg: #f5f6fb;
            --bg-deep: #0d1638;
            --card-bg: #ffffff;
            --text: #1a2333;
            --text-weak: #5c6678;
            --border: #e4e8f0;
            --radius: 18px;
            --radius-sm: 12px;
            --shadow-sm: 0 2px 10px rgba(22, 37, 92, .06);
            --shadow-md: 0 8px 30px rgba(22, 37, 92, .10);
            --shadow-lg: 0 16px 48px rgba(22, 37, 92, .14);
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --gradient: linear-gradient(135deg, #16255c 0%, #1f337a 60%, #2a468f 100%);
            --gradient-accent: linear-gradient(135deg, #f58a1e, #ffb14e);
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        a { text-decoration: none; color: inherit; transition: color .25s, opacity .25s; }
        ul, ol { list-style: none; }
        button { font-family: inherit; border: none; background: none; cursor: pointer; }
        input { font-family: inherit; }

        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .grid-container { max-width: 1200px; }
        .section { padding: 80px 0; }
        .section-alt { background: #fff; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
        .section-head { text-align: center; max-width: 680px; margin: 0 auto 48px; }
        .section-head .eyebrow { display: inline-block; background: rgba(245, 138, 30, .12); color: var(--accent-dark); font-size: 13px; font-weight: 700; letter-spacing: 1px; padding: 4px 14px; border-radius: 100px; margin-bottom: 14px; }
        .section-head h2 { font-size: clamp(26px, 4vw, 38px); font-weight: 800; line-height: 1.3; color: var(--primary); margin-bottom: 12px; }
        .section-head p { color: var(--text-weak); font-size: 16px; }

        /* Buttons */
        .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 26px; border-radius: 100px; font-weight: 600; font-size: 15px; transition: all .3s ease; border: 2px solid transparent; }
        .btn-primary { background: var(--accent); color: #fff; box-shadow: 0 4px 16px rgba(245, 138, 30, .35); }
        .btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245, 138, 30, .4); }
        .btn-outline { background: transparent; color: var(--primary); border-color: rgba(22, 37, 92, .25); }
        .btn-outline:hover { border-color: var(--primary); background: rgba(22, 37, 92, .04); }
        .btn-white { background: #fff; color: var(--primary); }
        .btn-white:hover { background: #f0f2f8; transform: translateY(-2px); box-shadow: var(--shadow-md); }
        .btn-lg { padding: 16px 36px; font-size: 16px; }
        .btn-sm { padding: 8px 18px; font-size: 14px; }
        .btn-block { width: 100%; }

        /* Badge & Tags */
        .badge { display: inline-block; padding: 4px 13px; border-radius: 100px; font-size: 12px; font-weight: 700; letter-spacing: .4px; background: rgba(245, 138, 30, .12); color: var(--accent-dark); }
        .badge-primary { background: rgba(22, 37, 92, .08); color: var(--primary); }
        .badge-green { background: rgba(34, 155, 92, .12); color: #1f9d63; }

        /* ===== Header ===== */
        .site-header { background: rgba(255,255,255,.92); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid rgba(228, 232, 240, .8); position: sticky; top: 0; z-index: 200; box-shadow: 0 2px 20px rgba(22,37,92,.05); }
        .header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 14px 0; }
        .brand-logo { display: inline-flex; align-items: center; gap: 2px; font-size: 22px; font-weight: 900; letter-spacing: .5px; white-space: nowrap; }
        .logo-main { color: var(--primary); }
        .logo-accent { background: var(--gradient-accent); -webkit-background-clip: text; background-clip: text; color: transparent; }
        .main-nav { display: flex; align-items: center; gap: 8px; }
        .nav-link { position: relative; padding: 8px 16px; border-radius: 100px; color: var(--text-weak); font-size: 15px; font-weight: 500; transition: all .25s; }
        .nav-link:hover { color: var(--primary); background: rgba(22, 37, 92, .05); }
        .nav-link.is-active { color: var(--primary); font-weight: 700; background: rgba(22, 37, 92, .07); }
        .nav-link.is-active::after { content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%); width: 18px; height: 3px; border-radius: 3px; background: var(--accent); }
        .header-tools { display: flex; align-items: center; gap: 14px; }
        .search-wrap { display: flex; align-items: center; gap: 10px; background: #f0f2f8; border: 1px solid var(--border); border-radius: 100px; padding: 8px 14px; width: 240px; transition: all .3s; }
        .search-wrap:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(245,138,30,.15); background: #fff; }
        .search-wrap i { color: var(--text-weak); font-size: 14px; }
        .search-input { border: none; background: transparent; flex: 1; font-size: 14px; color: var(--text); outline: none; min-width: 0; }
        .search-input::placeholder { color: #9aa3b5; }
        .search-cmd { font-size: 11px; font-weight: 700; background: #fff; border: 1px solid var(--border); color: var(--text-weak); padding: 2px 8px; border-radius: 6px; white-space: nowrap; }
        .nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 10px; border-radius: 10px; background: #f0f2f8; }
        .nav-toggle span { display: block; width: 20px; height: 2px; background: var(--primary); border-radius: 2px; transition: all .3s; }

        /* ===== Hero Banner ===== */
        .article-hero { position: relative; background: linear-gradient(135deg, #0d1638 0%, #1f337a 50%, #16255c 100%); padding: 80px 0 56px; overflow: hidden; }
        .article-hero::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center/cover no-repeat; opacity: .25; }
        .article-hero::after { content: ''; position: absolute; top: -60%; right: -20%; width: 600px; height: 600px; background: radial-gradient(circle, rgba(245,138,30,.25) 0%, transparent 70%); pointer-events: none; }
        .article-hero .container { position: relative; z-index: 2; }
        .breadcrumb { display: flex; align-items: center; gap: 6px; color: rgba(255,255,255,.65); font-size: 13px; margin-bottom: 24px; flex-wrap: wrap; }
        .breadcrumb a { color: rgba(255,255,255,.75); }
        .breadcrumb a:hover { color: var(--accent-light); }
        .breadcrumb i { font-size: 10px; opacity: .6; }
        .article-hero .badge { background: rgba(245,138,30,.25); color: #ffd9a8; margin-bottom: 16px; }
        .article-hero h1 { color: #fff; font-size: clamp(26px, 4.5vw, 42px); font-weight: 900; line-height: 1.35; max-width: 860px; margin-bottom: 18px; text-shadow: 0 2px 20px rgba(0,0,0,.2); }
        .hero-meta { display: flex; align-items: center; gap: 20px; color: rgba(255,255,255,.7); font-size: 14px; flex-wrap: wrap; }
        .hero-meta span { display: inline-flex; align-items: center; gap: 6px; }
        .hero-meta i { color: var(--accent-light); }

        /* ===== Article Layout ===== */
        .article-section { padding: 64px 0 80px; }
        .article-layout { display: grid; grid-template-columns: 1fr 340px; gap: 48px; align-items: start; }
        .article-main { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-sm); padding: 48px; border: 1px solid rgba(228,232,240,.6); }
        .article-content { font-size: 16px; line-height: 2; color: #2d3648; }
        .article-content h2 { font-size: 24px; color: var(--primary); margin: 36px 0 16px; padding-bottom: 12px; border-bottom: 2px solid rgba(245,138,30,.2); }
        .article-content h3 { font-size: 20px; color: var(--primary); margin: 28px 0 12px; }
        .article-content p { margin-bottom: 18px; }
        .article-content ul { list-style: disc; padding-left: 24px; margin-bottom: 18px; }
        .article-content li { margin-bottom: 8px; }
        .article-content img { margin: 24px 0; border-radius: var(--radius-sm); box-shadow: var(--shadow-sm); }
        .article-content blockquote { background: rgba(245,138,30,.06); border-left: 4px solid var(--accent); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 18px 24px; margin: 24px 0; color: var(--text-weak); }
        .article-content a { color: var(--accent-dark); text-decoration: underline; text-underline-offset: 3px; }
        .article-content a:hover { color: var(--accent); }
        .article-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--border); }
        .article-tags .tag { background: #f0f2f8; color: var(--text-weak); font-size: 13px; padding: 6px 14px; border-radius: 100px; transition: all .25s; }
        .article-tags .tag:hover { background: var(--accent); color: #fff; }
        .article-share { margin-top: 24px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
        .article-share span { font-size: 14px; color: var(--text-weak); font-weight: 600; }
        .share-btn { width: 38px; height: 38px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; background: #f0f2f8; color: var(--text-weak); transition: all .25s; font-size: 14px; }
        .share-btn:hover { background: var(--accent); color: #fff; transform: translateY(-2px); }
        .article-empty { text-align: center; padding: 80px 0; }
        .article-empty i { font-size: 56px; color: var(--border); margin-bottom: 20px; }
        .article-empty h2 { color: var(--primary); margin-bottom: 12px; }
        .article-empty p { color: var(--text-weak); margin-bottom: 28px; }

        /* Sidebar */
        .article-sidebar { display: flex; flex-direction: column; gap: 28px; position: sticky; top: 100px; }
        .sidebar-card { background: #fff; border-radius: var(--radius); padding: 28px; border: 1px solid rgba(228,232,240,.6); box-shadow: var(--shadow-sm); }
        .sidebar-card h3 { font-size: 18px; font-weight: 800; color: var(--primary); margin-bottom: 18px; padding-bottom: 12px; border-bottom: 2px solid rgba(245,138,30,.2); display: flex; align-items: center; gap: 8px; }
        .sidebar-card h3 i { color: var(--accent); }
        .side-nav-list li { margin-bottom: 6px; }
        .side-nav-list a { display: flex; align-items: center; justify-content: space-between; padding: 10px 14px; border-radius: 10px; color: var(--text-weak); font-size: 14px; transition: all .25s; }
        .side-nav-list a:hover { background: rgba(245,138,30,.07); color: var(--accent-dark); }
        .side-nav-list a i { font-size: 12px; opacity: .6; }
        .side-card-list li { margin-bottom: 12px; }
        .side-card-list a { display: flex; gap: 12px; align-items: center; padding: 8px; border-radius: 10px; transition: all .25s; }
        .side-card-list a:hover { background: #f8f9fd; }
        .side-card-list .thumb { width: 72px; height: 54px; border-radius: 8px; object-fit: cover; flex-shrink: 0; }
        .side-card-list .info { flex: 1; min-width: 0; }
        .side-card-list .info h4 { font-size: 14px; font-weight: 600; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
        .side-card-list .info span { font-size: 12px; color: var(--text-weak); }
        .sidebar-cta { background: var(--gradient); color: #fff; text-align: center; }
        .sidebar-cta h3 { color: #fff; border-color: rgba(255,255,255,.2); }
        .sidebar-cta p { color: rgba(255,255,255,.7); font-size: 14px; margin-bottom: 16px; }

        /* ===== Related Card ===== */
        .related-section { padding: 72px 0; background: #fff; border-top: 1px solid var(--border); }
        .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .related-card { background: var(--bg); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transition: all .35s; }
        .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
        .related-card .card-img { position: relative; height: 180px; overflow: hidden; }
        .related-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
        .related-card:hover .card-img img { transform: scale(1.06); }
        .related-card .card-body { padding: 22px; }
        .related-card .card-body .badge { margin-bottom: 10px; }
        .related-card .card-body h3 { font-size: 17px; font-weight: 700; line-height: 1.5; margin-bottom: 10px; color: var(--primary); }
        .related-card .card-body h3 a:hover { color: var(--accent-dark); }
        .related-card .card-body p { font-size: 14px; color: var(--text-weak); line-height: 1.7; margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .card-meta { display: flex; align-items: center; gap: 14px; font-size: 12px; color: #9aa3b5; }
        .card-meta i { font-size: 11px; }

        /* ===== CTA ===== */
        .cta-section { padding: 80px 0; background: var(--bg-deep); position: relative; overflow: hidden; }
        .cta-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center/cover no-repeat; opacity: .18; }
        .cta-section::after { content: ''; position: absolute; bottom: -100%; left: 50%; transform: translateX(-50%); width: 800px; height: 800px; background: radial-gradient(circle, rgba(245,138,30,.25), transparent 65%); pointer-events: none; }
        .cta-inner { position: relative; z-index: 2; text-align: center; max-width: 680px; margin: 0 auto; }
        .cta-inner .badge { background: rgba(245,138,30,.2); color: #ffd9a8; margin-bottom: 16px; }
        .cta-inner h2 { color: #fff; font-size: clamp(26px, 4vw, 36px); font-weight: 900; margin-bottom: 16px; }
        .cta-inner p { color: rgba(255,255,255,.7); font-size: 16px; margin-bottom: 32px; }
        .cta-buttons { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

        /* ===== Footer ===== */
        .site-footer { background: #0a1025; color: rgba(255,255,255,.7); padding: 64px 0 0; }
        .footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; padding-bottom: 44px; border-bottom: 1px solid rgba(255,255,255,.08); }
        .footer-brand .brand-logo { margin-bottom: 14px; }
        .footer-brand .logo-main { color: #fff; }
        .footer-brand p { font-size: 14px; line-height: 1.8; max-width: 320px; margin-top: 12px; color: rgba(255,255,255,.55); }
        .footer-col h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 18px; }
        .footer-col a { display: block; color: rgba(255,255,255,.55); font-size: 14px; margin-bottom: 10px; transition: all .25s; }
        .footer-col a:hover { color: var(--accent-light); padding-left: 4px; }
        .footer-bottom { display: flex; align-items: center; justify-content: space-between; padding: 24px 0; font-size: 13px; color: rgba(255,255,255,.4); flex-wrap: wrap; gap: 10px; }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            .search-wrap { width: 180px; }
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { position: static; flex-direction: row; flex-wrap: wrap; }
            .sidebar-card { flex: 1; min-width: 260px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media screen and (max-width: 768px) {
            .header-inner { flex-wrap: wrap; gap: 12px; }
            .main-nav { display: none; order: 3; width: 100%; flex-direction: column; background: #fff; border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow-md); }
            .main-nav.is-open { display: flex; }
            .nav-toggle { display: flex; }
            .search-wrap { order: 2; flex: 1; width: auto; }
            .header-tools .btn { display: none; }
            .section { padding: 56px 0; }
            .article-hero { padding: 56px 0 40px; }
            .article-main { padding: 28px; }
            .article-content { font-size: 15px; }
            .footer-top { grid-template-columns: 1fr; gap: 32px; }
            .related-grid { grid-template-columns: 1fr; }
            .cta-buttons .btn { width: 100%; }
        }
        @media screen and (max-width: 520px) {
            .container { padding: 0 16px; }
            .search-cmd { display: none; }
            .header-tools .btn { display: none; }
            .hero-meta { gap: 12px; font-size: 13px; }
            .article-main { padding: 20px 16px; }
            .sidebar-card { min-width: 100%; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

/* roulang page: category1 */
:root {
    --primary: #1B2F5E;
    --primary-dark: #12203F;
    --primary-light: #274386;
    --accent: #E8A33D;
    --accent-dark: #C9852A;
    --accent-light: #F7C97A;
    --cyan: #22B8A0;
    --bg-light: #F5F7FC;
    --bg-dark: #0F1B36;
    --text-main: #1D263B;
    --text-weak: #66728A;
    --border: #E3E8F2;
    --radius-lg: 22px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --shadow-sm: 0 2px 12px rgba(18, 32, 63, .06);
    --shadow-md: 0 12px 34px rgba(18, 32, 63, .10);
    --shadow-lg: 0 28px 60px rgba(18, 32, 63, .14);
    --space-section: 100px;
    --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-main);
    color: var(--text-main);
    background: #fff;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .25s; }
a:hover { color: var(--accent-dark); }
button, input { font-family: inherit; }

.grid-container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }

/* ===== Buttons ===== */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    font-weight: 700; border-radius: 999px; text-decoration: none;
    transition: all .28s ease; border: 1px solid transparent; cursor: pointer;
    line-height: 1; white-space: nowrap;
}
.btn-sm { height: 40px; padding: 0 20px; font-size: 14px; }
.btn-md { height: 48px; padding: 0 28px; font-size: 15px; }
.btn-lg { height: 54px; padding: 0 36px; font-size: 16px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-light); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.btn-primary:active { transform: translateY(0); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(232, 163, 61, .3); }
.btn-ghost { background: rgba(255, 255, 255, .12); color: #fff; border-color: rgba(255, 255, 255, .35); backdrop-filter: blur(6px); }
.btn-ghost:hover { background: rgba(255, 255, 255, .22); color: #fff; transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.btn:focus-visible { outline: 3px solid rgba(232, 163, 61, .45); outline-offset: 2px; }

/* ===== Tags / Badges ===== */
.tag {
    display: inline-flex; align-items: center; gap: 6px;
    background: rgba(27, 47, 94, .08); color: var(--primary);
    font-size: 12px; font-weight: 700; padding: 5px 12px; border-radius: 999px;
}
.tag-accent { background: rgba(232, 163, 61, .15); color: var(--accent-dark); }
.tag-cyan { background: rgba(34, 184, 160, .12); color: #0E826E; }

.topic-badge {
    position: absolute; top: 14px; left: 14px; z-index: 2;
    background: var(--accent); color: #fff; font-size: 12px; font-weight: 700;
    padding: 4px 12px; border-radius: 999px; box-shadow: 0 4px 14px rgba(0, 0, 0, .18);
}

/* ===== Header / Nav ===== */
.site-header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(255, 255, 255, .92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 20px; }
.brand-logo { display: flex; align-items: baseline; gap: 3px; font-size: 24px; font-weight: 800; line-height: 1; }
.logo-main { color: var(--primary); }
.logo-accent { color: var(--accent); }
.main-nav { display: flex; align-items: center; gap: 6px; margin-left: 10px; }
.nav-link {
    padding: 9px 18px; border-radius: 999px; font-size: 15px; font-weight: 600;
    color: var(--text-main); transition: all .25s; border: 1px solid transparent;
}
.nav-link:hover { background: var(--bg-light); color: var(--primary); }
.nav-link.is-active { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(27, 47, 94, .22); }
.header-tools { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.search-wrap {
    display: flex; align-items: center; gap: 8px;
    background: var(--bg-light); border: 1px solid var(--border);
    border-radius: 999px; padding: 0 14px; height: 40px; width: 248px;
    transition: all .25s;
}
.search-wrap.is-focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(27, 47, 94, .1); background: #fff; }
.search-wrap i { color: var(--text-weak); font-size: 14px; flex-shrink: 0; }
.search-input {
    border: none; background: transparent; flex: 1; min-width: 0;
    font-size: 14px; color: var(--text-main); outline: none;
}
.search-input::placeholder { color: #9AA5BB; }
.search-cmd {
    font-size: 11px; color: var(--text-weak); background: #fff;
    border: 1px solid var(--border); border-radius: 6px; padding: 2px 7px; flex-shrink: 0;
}
.nav-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--border); background: #fff; border-radius: 12px; cursor: pointer; flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--primary); border-radius: 2px; transition: all .3s; }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Category Hero ===== */
.cat-hero { position: relative; overflow: hidden; padding: 90px 0 100px; background: var(--bg-dark); }
.cat-hero-bg {
    position: absolute; inset: 0; background-size: cover; background-position: center;
    opacity: .5;
}
.cat-hero-bg::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(100deg, rgba(15, 27, 54, .94) 0%, rgba(15, 27, 54, .72) 52%, rgba(15, 27, 54, .45) 100%);
}
.cat-hero .grid-container { position: relative; z-index: 2; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 40px; }
.cat-hero-inner { max-width: 620px; }
.crumb { display: flex; align-items: center; gap: 8px; color: rgba(255, 255, 255, .72); font-size: 13px; letter-spacing: .4px; margin-bottom: 18px; }
.crumb a { color: rgba(255, 255, 255, .6); }
.crumb a:hover { color: var(--accent-light); }
.crumb i { font-size: 10px; color: rgba(255, 255, 255, .4); }
.cat-hero h1 { font-size: 52px; line-height: 1.15; font-weight: 800; color: #fff; letter-spacing: 1px; margin-bottom: 14px; }
.cat-hero h1 span { color: var(--accent-light); }
.cat-hero p { font-size: 17px; line-height: 1.8; color: rgba(255, 255, 255, .82); margin-bottom: 32px; max-width: 520px; }
.cat-hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.cat-hero-stats { display: flex; gap: 18px; }
.hero-stat {
    background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .16);
    backdrop-filter: blur(10px); border-radius: var(--radius-md);
    padding: 22px 26px; text-align: center; min-width: 116px;
}
.hero-stat strong { display: block; font-size: 32px; font-weight: 800; color: #fff; line-height: 1.2; }
.hero-stat strong i { color: var(--accent-light); font-style: normal; }
.hero-stat span { display: block; margin-top: 4px; font-size: 13px; color: rgba(255, 255, 255, .68); }

/* ===== Section general ===== */
.section { padding: var(--space-section) 0; }
.section-light { background: var(--bg-light); }
.section-head { max-width: 640px; margin: 0 auto 52px; text-align: center; }
.section-head .section-tag { justify-content: center; }
.section-head h2 { font-size: 40px; line-height: 1.25; font-weight: 800; color: var(--primary-dark); margin: 14px 0 12px; }
.section-head p { font-size: 16px; color: var(--text-weak); line-height: 1.8; }
.section-tag {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(232, 163, 61, .12); color: var(--accent-dark);
    font-size: 12px; font-weight: 800; letter-spacing: 2px;
    padding: 6px 14px; border-radius: 999px; text-transform: uppercase;
}
.section-tag::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

/* ===== About Category ===== */
.about-cat .grid-x { align-items: center; row-gap: 36px; }
.about-img { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); }
.about-img img { width: 100%; height: 380px; object-fit: cover; transition: transform .6s ease; }
.about-img:hover img { transform: scale(1.03); }
.about-img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 65%, rgba(15, 27, 54, .4)); }
.about-img .about-img-tag {
    position: absolute; left: 20px; bottom: 20px; z-index: 2;
    background: rgba(255, 255, 255, .92); color: var(--primary);
    font-size: 13px; font-weight: 700; padding: 8px 16px; border-radius: 999px;
}
.about-content { padding-left: 24px; }
.about-content h2 { font-size: 36px; font-weight: 800; color: var(--primary-dark); line-height: 1.3; margin: 16px 0 14px; }
.about-content > p { font-size: 16px; color: var(--text-weak); line-height: 1.9; margin-bottom: 24px; }
.check-list { list-style: none; margin-bottom: 30px; }
.check-list li {
    position: relative; padding-left: 30px; font-size: 15px; color: var(--text-main);
    margin-bottom: 12px; line-height: 1.7;
}
.check-list li::before {
    content: "\f00c"; font-family: "Font Awesome 6 Free"; font-weight: 900;
    position: absolute; left: 0; top: 1px; width: 20px; height: 20px;
    background: rgba(34, 184, 160, .15); color: #0E826E;
    border-radius: 50%; font-size: 10px; display: flex; align-items: center; justify-content: center;
}

/* ===== Topic Cards ===== */
.topic-card {
    background: #fff; border-radius: var(--radius-lg); border: 1px solid var(--border);
    overflow: hidden; transition: all .35s ease; box-shadow: var(--shadow-sm); height: 100%;
    display: flex; flex-direction: column;
}
.topic-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); border-color: transparent; }
.topic-card-img { position: relative; overflow: hidden; height: 180px; }
.topic-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.topic-card:hover .topic-card-img img { transform: scale(1.06); }
.topic-card-img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(15, 27, 54, 0) 55%, rgba(15, 27, 54, .55)); }
.topic-card-body { padding: 22px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.topic-card-body h3 { font-size: 20px; font-weight: 800; color: var(--primary-dark); margin-bottom: 8px; }
.topic-card-body p { font-size: 14px; color: var(--text-weak); line-height: 1.75; flex: 1; margin-bottom: 16px; }
.topic-meta { display: flex; gap: 14px; font-size: 12px; color: var(--text-weak); margin-bottom: 14px; }
.topic-meta span { display: inline-flex; align-items: center; gap: 6px; }
.topic-meta i { color: var(--accent); font-size: 11px; }
.text-link { display: inline-flex; align-items: center; gap: 7px; font-size: 14px; font-weight: 700; color: var(--primary); }
.text-link i { transition: transform .25s; }
.text-link:hover i { transform: translateX(4px); }

/* ===== Hot List ===== */
.hot-panel { background: #fff; border-radius: var(--radius-lg); border: 1px solid var(--border); box-shadow: var(--shadow-sm); padding: 32px; height: 100%; }
.hot-list { display: flex; flex-direction: column; }
.hot-item {
    display: flex; align-items: center; gap: 20px; padding: 16px 4px;
    border-bottom: 1px solid var(--border); transition: background .25s; border-radius: var(--radius-sm);
}
.hot-item:last-child { border-bottom: none; }
.hot-item:hover { background: var(--bg-light); }
.hot-num {
    font-size: 22px; font-weight: 800; color: transparent; -webkit-text-stroke: 1.5px var(--accent);
    font-style: italic; min-width: 44px; text-align: center; line-height: 1;
}
.hot-info { flex: 1; min-width: 0; }
.hot-info h3 { font-size: 16px; font-weight: 700; color: var(--text-main); line-height: 1.5; margin-bottom: 4px; transition: color .2s; }
.hot-item:hover .hot-info h3 { color: var(--primary); }
.hot-info p { font-size: 13px; color: var(--text-weak); }
.hot-item .fa-chevron-right { color: #C3CDDF; font-size: 14px; transition: all .25s; }
.hot-item:hover .fa-chevron-right { color: var(--accent); transform: translateX(4px); }

.side-info {
    background: linear-gradient(160deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius-lg); padding: 34px; color: #fff; height: 100%;
    position: relative; overflow: hidden; box-shadow: var(--shadow-md);
}
.side-info::before {
    content: ""; position: absolute; right: -50px; top: -50px; width: 160px; height: 160px;
    background: rgba(255, 255, 255, .08); border-radius: 50%;
}
.side-info h3 { font-size: 24px; font-weight: 800; margin: 16px 0 10px; line-height: 1.4; }
.side-info p { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, .78); margin-bottom: 22px; }
.side-info .btn-accent { margin-top: 4px; }
.side-info-list { margin-top: 24px; list-style: none; display: flex; flex-direction: column; gap: 12px; }
.side-info-list li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255, 255, 255, .85); }
.side-info-list li i { color: var(--accent-light); font-size: 12px; }

/* ===== Data Section ===== */
.data-section { background: var(--bg-dark); padding: 84px 0; position: relative; overflow: hidden; }
.data-section::before {
    content: ""; position: absolute; inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px);
    background-size: 28px 28px;
}
.data-section .grid-container { position: relative; z-index: 2; }
.data-head { text-align: center; margin-bottom: 48px; }
.data-head .section-tag { background: rgba(255, 255, 255, .1); color: var(--accent-light); }
.data-head .section-tag::before { background: var(--accent-light); }
.data-head h2 { font-size: 36px; color: #fff; margin: 14px 0 10px; }
.data-head p { color: rgba(255, 255, 255, .62); font-size: 15px; }
.data-card {
    background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .1);
    border-radius: var(--radius-md); padding: 34px 28px; text-align: center;
    transition: all .35s; backdrop-filter: blur(4px);
}
.data-card:hover { background: rgba(255, 255, 255, .1); transform: translateY(-6px); border-color: rgba(232, 163, 61, .4); }
.data-card strong { display: block; font-size: 44px; font-weight: 800; color: var(--accent-light); line-height: 1.2; margin-bottom: 6px; }
.data-card span { font-size: 14px; color: rgba(255, 255, 255, .72); letter-spacing: 1px; }

/* ===== Path Section ===== */
.path-card { position: relative; background: #fff; border-radius: var(--radius-lg); border: 1px solid var(--border); padding: 34px 28px; text-align: center; transition: all .35s; height: 100%; }
.path-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); border-color: transparent; }
.path-num {
    width: 56px; height: 56px; margin: 0 auto 20px; border-radius: 16px;
    background: var(--primary); color: #fff; font-size: 20px; font-weight: 800;
    display: flex; align-items: center; justify-content: center; line-height: 1;
    transition: background .3s;
}
.path-card:hover .path-num { background: var(--accent); }
.path-card h3 { font-size: 20px; font-weight: 800; color: var(--primary-dark); margin-bottom: 10px; }
.path-card p { font-size: 14px; color: var(--text-weak); line-height: 1.75; }
.path-arrow {
    position: absolute; right: -26px; top: 50%; transform: translateY(-50%); z-index: 3;
    color: var(--accent); font-size: 28px; opacity: .7;
}

/* ===== FAQ ===== */
.faq-panel { display: flex; flex-direction: column; gap: 14px; }
details.faq-item {
    background: #fff; border-radius: var(--radius-md); border: 1px solid var(--border);
    padding: 20px 24px; transition: all .3s; box-shadow: var(--shadow-sm);
}
details.faq-item[open] { border-color: var(--accent); box-shadow: var(--shadow-md); }
details.faq-item summary {
    cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between;
    font-size: 16px; font-weight: 700; color: var(--text-main); line-height: 1.5; user-select: none;
}
details.faq-item summary::-webkit-details-marker { display: none; }
details.faq-item summary::after {
    content: "\f078"; font-family: "Font Awesome 6 Free"; font-weight: 900;
    font-size: 14px; color: var(--text-weak); transition: all .3s; flex-shrink: 0; margin-left: 14px;
}
details.faq-item[open] summary::after { transform: rotate(180deg); color: var(--accent); }
.faq-answer { padding-top: 14px; color: var(--text-weak); font-size: 14px; line-height: 1.8; border-top: 1px dashed var(--border); margin-top: 14px; }

/* ===== CTA ===== */
.cta-section { position: relative; overflow: hidden; }
.cta-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.cta-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(27, 47, 94, .92), rgba(15, 27, 54, .85)); }
.cta-inner { position: relative; z-index: 2; text-align: center; padding: 92px 20px; }
.cta-inner h2 { font-size: 44px; font-weight: 800; color: #fff; letter-spacing: 1px; margin-bottom: 16px; }
.cta-inner p { font-size: 17px; color: rgba(255, 255, 255, .78); max-width: 540px; margin: 0 auto 34px; line-height: 1.8; }
.cta-inner .btn-lg { font-size: 17px; }

/* ===== Footer ===== */
.site-footer { background: var(--bg-dark); padding: 70px 0 0; color: rgba(255, 255, 255, .7); }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(255, 255, 255, .08); }
.footer-brand .brand-logo { margin-bottom: 18px; }
.footer-brand .logo-main { color: #fff; }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 320px; color: rgba(255, 255, 255, .6); }
.footer-col h4 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 18px; }
.footer-col a { display: block; padding: 6px 0; font-size: 14px; color: rgba(255, 255, 255, .62); transition: all .2s; }
.footer-col a:hover { color: var(--accent-light); padding-left: 4px; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding: 22px 0; font-size: 13px; color: rgba(255, 255, 255, .42); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    :root { --space-section: 78px; }
    .cat-hero h1 { font-size: 44px; }
    .search-wrap { width: 200px; }
    .cat-hero .grid-container { justify-content: flex-start; }
    .about-content { padding-left: 0; }
    .footer-top { grid-template-columns: 1.4fr 1fr 1fr; }
}

@media (max-width: 768px) {
    :root { --space-section: 62px; }
    .header-inner { height: 66px; gap: 12px; }
    .header-tools .search-wrap { display: none; }
    .header-tools .btn-sm { display: none; }
    .nav-toggle { display: flex; }
    .main-nav {
        position: absolute; top: 100%; left: 0; right: 0;
        background: #fff; border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md); flex-direction: column; align-items: stretch;
        padding: 14px 24px 20px; display: none; gap: 4px;
    }
    .main-nav.is-open { display: flex; animation: navFade .3s ease; }
    .nav-link { padding: 14px 18px; border-radius: 10px; font-size: 16px; }
    .nav-link.is-active { background: var(--primary); }
    .cat-hero { padding: 64px 0 70px; }
    .cat-hero h1 { font-size: 36px; }
    .cat-hero p { font-size: 15px; }
    .cat-hero-stats { width: 100%; flex-wrap: wrap; }
    .hero-stat { flex: 1; min-width: 100px; padding: 18px 14px; }
    .hero-stat strong { font-size: 26px; }
    .section-head h2 { font-size: 32px; }
    .about-content h2 { font-size: 30px; }
    .topic-card-img { height: 160px; }
    .footer-top { grid-template-columns: 1fr; gap: 36px; }
    .path-arrow { display: none; }
    .data-card { padding: 26px 18px; }
    .data-card strong { font-size: 34px; }
    .cta-inner { padding: 64px 20px; }
    .cta-inner h2 { font-size: 32px; }
}

@media (max-width: 520px) {
    :root { --space-section: 50px; }
    .grid-container { padding-left: 18px; padding-right: 18px; }
    .cat-hero h1 { font-size: 30px; }
    .cat-hero-stats { gap: 10px; }
    .hero-stat { min-width: calc(50% - 10px); }
    .hot-panel { padding: 20px; }
    .hot-item { gap: 12px; }
    .hot-num { min-width: 34px; font-size: 18px; }
    .side-info { padding: 26px; }
    .section-head h2 { font-size: 28px; }
    .about-content h2 { font-size: 26px; }
    .about-img img { height: 260px; }
    .footer-bottom { flex-direction: column; text-align: center; }
}
@keyframes navFade { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }