/* roulang page: index */
:root {
            --primary: #1b2a4a;
            --primary-dark: #101b30;
            --primary-light: #2b3f66;
            --secondary: #c9a063;
            --secondary-dark: #a5844a;
            --accent: #e0604a;
            --bg-light: #f2f5f9;
            --bg-white: #ffffff;
            --text-dark: #1d2939;
            --text-body: #4a5668;
            --text-light: #8a94a6;
            --border-color: #e5e9ef;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 10px rgba(27, 42, 74, 0.06);
            --shadow-md: 0 6px 24px rgba(27, 42, 74, 0.08);
            --shadow-lg: 0 16px 48px rgba(27, 42, 74, 0.14);
            --transition: all 0.3s ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
            overflow-x: hidden;
        }

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

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

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

        .container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            position: relative;
        }

        .header-left,
        .header-right {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .header-right {
            justify-content: flex-end;
        }

        .nav-link-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-body);
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .nav-link-item:hover {
            color: var(--primary);
            background: rgba(27, 42, 74, 0.05);
        }

        .nav-link-item.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(27, 42, 74, 0.25);
        }

        .nav-link-item.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        .brand-logo {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            font-size: 26px;
            font-weight: 800;
            letter-spacing: 1px;
            white-space: nowrap;
            color: var(--primary);
            transition: var(--transition);
        }

        .brand-logo:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .brand-logo .logo-accent {
            color: var(--secondary);
            font-weight: 700;
        }

        .brand-logo .logo-hover {
            display: inline-block;
            transition: transform 0.3s ease;
        }

        .brand-logo:hover .logo-hover {
            transform: scale(1.02);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: 1px solid var(--border-color);
            border-radius: 10px;
            width: 44px;
            height: 44px;
            font-size: 20px;
            color: var(--primary);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .mobile-menu-btn:hover {
            background: var(--primary);
            color: #fff;
        }

        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border-color);
            padding: 16px 24px;
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
        }

        .mobile-menu.show {
            display: block;
        }

        .mobile-link {
            display: block;
            padding: 14px 16px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-body);
            border-radius: 10px;
            transition: var(--transition);
        }

        .mobile-link:hover {
            color: var(--primary);
            background: rgba(27, 42, 74, 0.05);
        }

        .mobile-link.active {
            color: var(--primary);
            background: rgba(27, 42, 74, 0.08);
            font-weight: 700;
        }

        .hero-section {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            min-height: 680px;
            display: flex;
            align-items: center;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(16, 27, 48, 0.88) 0%, rgba(16, 27, 48, 0.72) 50%, rgba(16, 27, 48, 0.45) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding: 100px 0;
            max-width: 780px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(201, 160, 99, 0.2);
            border: 1px solid rgba(201, 160, 99, 0.4);
            color: #e8c78e;
            border-radius: 40px;
            padding: 8px 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 28px;
            backdrop-filter: blur(4px);
        }

        .hero-badge i {
            font-size: 14px;
        }

        .hero-title {
            font-size: 56px;
            font-weight: 800;
            color: #fff;
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: 2px;
        }

        .hero-title .accent {
            color: var(--secondary);
            position: relative;
        }

        .hero-subtitle {
            font-size: 19px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 12px;
            font-weight: 500;
            line-height: 1.6;
        }

        .hero-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.6);
            max-width: 640px;
            margin-bottom: 40px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-main {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            border: 1px solid transparent;
            transition: var(--transition);
            cursor: pointer;
            text-align: center;
        }

        .btn-primary-custom {
            background: var(--secondary);
            color: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(201, 160, 99, 0.35);
        }

        .btn-primary-custom:hover {
            background: #ddb577;
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(201, 160, 99, 0.45);
        }

        .btn-outline-light-custom {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.6);
        }

        .btn-outline-light-custom:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }

        .section {
            padding: 100px 0;
        }

        .section-white {
            background: #fff;
        }

        .section-light {
            background: var(--bg-light);
        }

        .section-dark {
            background: var(--primary-dark);
            color: #fff;
        }

        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 12px;
            padding: 6px 20px;
            border-radius: 40px;
            background: rgba(201, 160, 99, 0.08);
            border: 1px solid rgba(201, 160, 99, 0.2);
        }

        .section-title {
            font-size: 38px;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 16px;
            line-height: 1.2;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-light);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .section-title-light {
            color: #fff;
        }

        .section-subtitle-light {
            color: rgba(255, 255, 255, 0.65);
        }

        .section-tag-light {
            background: rgba(201, 160, 99, 0.15);
            border-color: rgba(201, 160, 99, 0.35);
        }

        .feature-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 42px 36px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--secondary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }

        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-md);
            border-color: rgba(201, 160, 99, 0.3);
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-icon {
            width: 86px;
            height: 86px;
            border-radius: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 24px;
            font-size: 32px;
            color: #fff;
        }

        .feature-icon-bg1 {
            background: linear-gradient(135deg, #2b3f66, #1b2a4a);
        }

        .feature-icon-bg2 {
            background: linear-gradient(135deg, #d4a95b, #a5844a);
        }

        .feature-icon-bg3 {
            background: linear-gradient(135deg, #e0704a, #c04a32);
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 14px;
        }

        .feature-card p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            background: #fff;
        }

        .category-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
        }

        .category-card-img {
            width: 100%;
            height: 280px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .category-card-body {
            padding: 28px;
        }

        .category-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }

        .category-card p {
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .category-card-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            color: var(--primary);
        }

        .category-card-link:hover {
            color: var(--secondary);
        }

        .news-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(27, 42, 74, 0.15);
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .news-category {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 600;
            color: var(--secondary-dark);
            background: rgba(201, 160, 99, 0.1);
            border: 1px solid rgba(201, 160, 99, 0.25);
        }

        .news-date {
            font-size: 13px;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .news-date i {
            font-size: 14px;
            opacity: 0.7;
        }

        .news-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.4;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-title a {
            color: var(--text-dark);
            text-decoration: none;
            transition: var(--transition);
        }

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

        .news-summary {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 20px;
            flex-grow: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }

        .news-link:hover {
            color: var(--secondary);
            gap: 12px;
        }

        .stats-section {
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 90px 0;
        }

        .stats-overlay {
            position: absolute;
            inset: 0;
            background: rgba(16, 27, 48, 0.92);
        }

        .stats-item {
            text-align: center;
            position: relative;
            z-index: 2;
            padding: 40px 20px;
            border-radius: var(--radius-md);
            transition: var(--transition);
        }

        .stats-item:hover {
            background: rgba(255, 255, 255, 0.04);
        }

        .stats-number {
            font-size: 52px;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.2;
            display: block;
            margin-bottom: 8px;
        }

        .stats-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
        }

        .process-step {
            text-align: center;
            padding: 30px 24px;
            position: relative;
        }

        .process-step::after {
            content: "";
            position: absolute;
            top: 45px;
            right: -15px;
            width: 30px;
            height: 2px;
            background: var(--border-color);
            z-index: 0;
        }

        .process-step:last-child::after {
            display: none;
        }

        .process-num {
            width: 86px;
            height: 86px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 28px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 22px;
            box-shadow: 0 8px 24px rgba(27, 42, 74, 0.25);
            position: relative;
            z-index: 2;
        }

        .process-step h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }

        .process-step p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 0;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 28px 30px;
            margin-bottom: 16px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(27, 42, 74, 0.12);
        }

        .faq-question {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 14px;
            cursor: pointer;
            user-select: none;
        }

        .faq-question i {
            color: var(--secondary);
            font-size: 16px;
            flex-shrink: 0;
        }

        .faq-answer {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
            padding-left: 30px;
            display: none;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        .cta-section {
            position: relative;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 80px 0;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 260px;
            height: 260px;
            background: rgba(201, 160, 99, 0.1);
            border-radius: 50%;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -100px;
            left: 10%;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
        }

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

        .cta-title {
            font-size: 38px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }

        .site-footer {
            background: #0d1424;
            padding: 60px 0 30px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-brand {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 24px;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-link-group h5 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .footer-link-group ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-link-group ul li {
            margin-bottom: 10px;
        }

        .footer-link-group ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            transition: var(--transition);
        }

        .footer-link-group ul li a:hover {
            color: var(--secondary);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            margin-top: 48px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
            text-align: center;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom a:hover {
            color: var(--secondary);
        }

        .footer-bottom .sep {
            margin: 0 10px;
            opacity: 0.4;
        }

        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            border: none;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 6px 20px rgba(27, 42, 74, 0.3);
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 999;
        }

        .scroll-top.show {
            opacity: 1;
            visibility: visible;
        }

        .scroll-top:hover {
            background: var(--secondary);
            transform: translateY(-3px);
        }

        .empty-news {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 50px 40px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px dashed var(--border-color);
            font-size: 16px;
            color: var(--text-light);
        }

        .empty-news i {
            font-size: 36px;
            color: var(--border-color);
            margin-bottom: 16px;
            display: block;
        }

        @media (max-width: 992px) {
            .header-left,
            .header-right {
                display: none;
            }

            .brand-logo {
                position: static;
                transform: none;
                font-size: 22px;
                flex: 1;
                justify-content: center;
            }

            .header-inner {
                gap: 12px;
            }

            .mobile-menu-btn {
                display: inline-flex;
            }

            .hero-title {
                font-size: 42px;
            }

            .hero-subtitle {
                font-size: 17px;
            }

            .section-title {
                font-size: 30px;
            }

            .section {
                padding: 70px 0;
            }

            .footer-bottom .sep {
                margin: 0 6px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .hero-section {
                min-height: 560px;
            }

            .hero-content {
                padding: 70px 0;
            }

            .hero-title {
                font-size: 34px;
            }

            .hero-subtitle {
                font-size: 16px;
            }

            .hero-desc {
                font-size: 15px;
                margin-bottom: 30px;
            }

            .hero-actions .btn-main {
                padding: 12px 24px;
                font-size: 14px;
            }

            .section {
                padding: 56px 0;
            }

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

            .section-title {
                font-size: 26px;
            }

            .feature-card {
                padding: 32px 24px;
            }

            .news-card {
                padding: 22px;
            }

            .stats-number {
                font-size: 38px;
            }

            .cta-title {
                font-size: 28px;
            }

            .cta-desc {
                font-size: 15px;
            }

            .process-step::after {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .brand-logo {
                font-size: 20px;
            }

            .hero-title {
                font-size: 28px;
                letter-spacing: 1px;
            }

            .hero-badge {
                font-size: 12px;
                padding: 6px 14px;
            }

            .hero-actions {
                flex-direction: column;
                gap: 12px;
            }

            .hero-actions .btn-main {
                width: 100%;
                justify-content: center;
            }

            .section-title {
                font-size: 23px;
            }

            .stats-number {
                font-size: 32px;
            }

            .stats-label {
                font-size: 13px;
            }

            .footer-bottom {
                font-size: 12px;
                line-height: 1.8;
            }

            .scroll-top {
                bottom: 20px;
                right: 20px;
            }
        }

        .btn:focus,
        .nav-link-item:focus,
        .mobile-menu-btn:focus,
        .brand-logo:focus,
        a:focus {
            outline: 2px solid var(--secondary);
            outline-offset: 3px;
        }

        .section-features .row>[class*="col-"] {
            margin-bottom: 24px;
        }

        .section-news .row>[class*="col-"] {
            margin-bottom: 24px;
        }

        .section-category .row>[class*="col-"] {
            margin-bottom: 24px;
        }

/* roulang page: category1 */
:root {
            --primary: #0a1f44;
            --primary-light: #162b5c;
            --primary-dark: #050f25;
            --secondary: #f0a420;
            --secondary-dark: #d18a10;
            --secondary-light: #fff1d6;
            --bg-light: #f6f8fb;
            --bg-white: #ffffff;
            --bg-deep: #081530;
            --text-main: #16223a;
            --text-muted: #6b7688;
            --border-light: #e7ecf3;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 10px rgba(10, 31, 68, .05);
            --shadow-md: 0 8px 24px rgba(10, 31, 68, .08);
            --shadow-lg: 0 18px 40px rgba(10, 31, 68, .12);
            --transition: .25s ease;
            --font-sans: 'Noto Sans SC', system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            color: var(--text-main);
            background: var(--bg-light);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }

        .container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: relative;
            min-height: 76px;
        }

        .header-left,
        .header-right {
            display: flex;
            align-items: center;
            gap: 8px;
            z-index: 2;
        }

        .nav-link-item {
            font-weight: 500;
            font-size: 15px;
            color: var(--text-main);
            padding: 8px 16px;
            border-radius: 30px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition);
        }

        .nav-link-item i {
            font-size: 13px;
            opacity: .7;
        }

        .nav-link-item:hover {
            color: var(--primary);
            background: var(--secondary-light);
        }

        .nav-link-item.active {
            color: var(--primary);
            background: linear-gradient(135deg, #fff7e8, #ffe9c7);
            font-weight: 600;
            box-shadow: inset 0 0 0 1px rgba(240, 164, 32, .25);
        }

        .brand-logo {
            font-size: 28px;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: -1px;
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            white-space: nowrap;
            transition: transform var(--transition), color var(--transition);
        }

        .brand-logo .logo-accent {
            color: var(--secondary);
        }

        .brand-logo:hover {
            transform: translate(-50%, -50%) scale(1.04);
            color: var(--primary);
        }

        .mobile-menu-btn {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--secondary-light);
            color: var(--primary);
            font-size: 20px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition);
        }

        .mobile-menu-btn:hover {
            background: var(--secondary);
            color: #fff;
        }

        .mobile-menu {
            display: none;
            padding: 12px 24px 20px;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            box-shadow: var(--shadow-md);
        }

        .mobile-menu.open {
            display: block;
            animation: fadeDown .3s ease;
        }

        .mobile-link {
            display: flex;
            align-items: center;
            padding: 14px 16px;
            border-radius: var(--radius-md);
            font-weight: 500;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .mobile-link:hover {
            background: var(--secondary-light);
            color: var(--primary);
        }

        .mobile-link.active {
            background: var(--primary);
            color: #fff;
        }

        @keyframes fadeDown {
            from {
                opacity: 0;
                transform: translateY(-8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .page-hero {
            position: relative;
            padding: 110px 0 100px;
            background: linear-gradient(120deg, rgba(5, 15, 37, .88), rgba(22, 43, 92, .78)), url('/assets/images/backpic/back-1.png') center center/cover no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            right: -120px;
            bottom: -120px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(240, 164, 32, .25), transparent 65%);
            border-radius: 50%;
        }

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

        .hero-breadcrumb {
            font-size: 14px;
            color: rgba(255, 255, 255, .75);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .hero-breadcrumb a {
            color: rgba(255, 255, 255, .85);
            padding: 4px 10px;
            background: rgba(255, 255, 255, .08);
            border-radius: 30px;
        }

        .hero-breadcrumb a:hover {
            background: var(--secondary);
            color: var(--primary);
        }

        .hero-breadcrumb .sep {
            opacity: .5;
            font-size: 12px;
        }

        .page-hero h1 {
            font-size: 52px;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 22px;
            letter-spacing: -1.5px;
        }

        .page-hero h1 span {
            color: var(--secondary);
        }

        .hero-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, .85);
            max-width: 640px;
            margin-bottom: 30px;
            line-height: 1.8;
        }

        .hero-topic-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 30px;
        }

        .hero-topic-tags span {
            font-size: 14px;
            padding: 7px 16px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .18);
            border-radius: 40px;
            color: rgba(255, 255, 255, .92);
            backdrop-filter: blur(6px);
        }

        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--secondary);
            color: var(--primary);
            font-weight: 700;
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 16px;
            border: 2px solid var(--secondary);
            transition: all var(--transition);
            box-shadow: 0 8px 20px rgba(240, 164, 32, .3);
        }

        .btn-brand:hover {
            background: transparent;
            color: #fff;
            border-color: #fff;
            box-shadow: none;
            transform: translateY(-3px);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .06);
            color: #fff;
            font-weight: 600;
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 16px;
            border: 1.5px solid rgba(255, 255, 255, .4);
            transition: all var(--transition);
        }

        .btn-outline-light:hover {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
            transform: translateY(-3px);
        }

        .section-pad {
            padding: 96px 0;
        }

        .section-pad-sm {
            padding: 64px 0;
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--secondary-light);
            border: 1px solid rgba(240, 164, 32, .25);
            color: var(--secondary-dark);
            font-size: 14px;
            font-weight: 700;
            padding: 6px 18px;
            border-radius: 40px;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }

        .section-head h2 {
            font-size: 38px;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: -1px;
            line-height: 1.25;
            margin-bottom: 16px;
        }

        .section-head p {
            color: var(--text-muted);
            font-size: 16px;
            line-height: 1.8;
        }

        .stats-section {
            background: var(--primary);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(120deg, rgba(240, 164, 32, .08), transparent 40%);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 2;
        }

        .stat-card {
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            text-align: center;
            backdrop-filter: blur(10px);
            transition: all var(--transition);
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, .1);
            transform: translateY(-6px);
        }

        .stat-icon {
            font-size: 28px;
            color: var(--secondary);
            margin-bottom: 12px;
        }

        .stat-num {
            font-size: 40px;
            font-weight: 900;
            color: #fff;
            line-height: 1.2;
            letter-spacing: -1px;
        }

        .stat-num small {
            font-size: 20px;
            color: var(--secondary);
            margin-left: 2px;
        }

        .stat-label {
            color: rgba(255, 255, 255, .7);
            font-size: 14px;
            margin-top: 6px;
        }

        .card-modern {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition);
            height: 100%;
        }

        .card-modern:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }

        .card-thumb {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }

        .card-thumb img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .card-modern:hover .card-thumb img {
            transform: scale(1.06);
        }

        .card-thumb .tag-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--secondary);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 30px;
            box-shadow: 0 4px 12px rgba(240, 164, 32, .3);
        }

        .card-body {
            padding: 28px;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }

        .card-meta i {
            color: var(--secondary);
        }

        .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .card-body p {
            color: var(--text-muted);
            font-size: 15px;
            margin-bottom: 20px;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            color: var(--primary);
            font-size: 14px;
        }

        .card-link i {
            transition: transform var(--transition);
        }

        .card-link:hover i {
            transform: translateX(5px);
        }

        .deep-section {
            background: var(--bg-white);
        }

        .deep-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .deep-image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .deep-image img {
            width: 100%;
            height: 460px;
            object-fit: cover;
        }

        .deep-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(10, 31, 68, .35), transparent 45%);
        }

        .deep-image .image-badge {
            position: absolute;
            left: 20px;
            bottom: 20px;
            background: rgba(255, 255, 255, .95);
            color: var(--primary);
            font-weight: 700;
            font-size: 14px;
            padding: 10px 20px;
            border-radius: 40px;
            z-index: 2;
            box-shadow: var(--shadow-md);
        }

        .deep-content .section-eyebrow {
            margin-bottom: 12px;
        }

        .deep-content h2 {
            font-size: 34px;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 18px;
        }

        .deep-content p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 15px;
        }

        .deep-list {
            list-style: none;
            margin: 24px 0 0;
            padding: 0;
        }

        .deep-list li {
            display: flex;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px dashed var(--border-light);
            align-items: flex-start;
        }

        .deep-list li:last-child {
            border-bottom: none;
        }

        .deep-list i {
            color: var(--secondary);
            font-size: 18px;
            margin-top: 4px;
            width: 24px;
            text-align: center;
            flex-shrink: 0;
        }

        .deep-list strong {
            display: block;
            color: var(--primary);
            font-size: 16px;
            font-weight: 600;
        }

        .deep-list span {
            color: var(--text-muted);
            font-size: 14px;
        }

        .process-section {
            background: var(--bg-deep);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .process-section::before {
            content: '';
            position: absolute;
            background: url('/assets/images/backpic/back-2.png') center center/cover no-repeat;
            opacity: .12;
            inset: 0;
        }

        .process-section .section-head h2 {
            color: #fff;
        }

        .process-section .section-head p {
            color: rgba(255, 255, 255, .7);
        }

        .process-wrapper {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }

        .process-step {
            text-align: center;
            padding: 36px 24px;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius-lg);
            transition: all var(--transition);
        }

        .process-step:hover {
            background: rgba(255, 255, 255, .1);
            transform: translateY(-6px);
        }

        .step-num {
            width: 52px;
            height: 52px;
            margin: 0 auto 20px;
            border-radius: 16px;
            background: var(--secondary);
            color: var(--primary);
            font-size: 22px;
            font-weight: 900;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 20px rgba(240, 164, 32, .3);
        }

        .process-step h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .process-step p {
            color: rgba(255, 255, 255, .65);
            font-size: 14px;
            margin-bottom: 0;
        }

        .timeline-section {
            background: var(--bg-light);
        }

        .timeline-list {
            max-width: 900px;
            margin: 0 auto;
            position: relative;
        }

        .timeline-list::before {
            content: '';
            position: absolute;
            left: 28px;
            top: 10px;
            bottom: 10px;
            width: 2px;
            background: linear-gradient(180deg, var(--secondary), var(--border-light));
        }

        .timeline-item {
            position: relative;
            padding-left: 84px;
            margin-bottom: 36px;
        }

        .timeline-dot {
            position: absolute;
            left: 18px;
            top: 20px;
            width: 22px;
            height: 22px;
            background: var(--secondary);
            border: 4px solid #fff;
            border-radius: 50%;
            box-shadow: 0 0 0 2px var(--secondary);
            z-index: 2;
        }

        .timeline-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            padding: 24px 28px;
            transition: box-shadow var(--transition);
        }

        .timeline-card:hover {
            box-shadow: var(--shadow-md);
        }

        .timeline-date {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--secondary-light);
            color: var(--secondary-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 30px;
            margin-bottom: 12px;
        }

        .timeline-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .timeline-card p {
            color: var(--text-muted);
            font-size: 15px;
            margin-bottom: 8px;
        }

        .timeline-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 12px;
        }

        .timeline-tags span {
            font-size: 12px;
            background: var(--bg-light);
            color: var(--text-muted);
            padding: 4px 12px;
            border-radius: 20px;
            border: 1px solid var(--border-light);
        }

        .faq-section {
            background: var(--bg-white);
        }

        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md) !important;
            margin-bottom: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .accordion-button {
            background: var(--bg-white);
            color: var(--primary);
            font-weight: 600;
            font-size: 16px;
            padding: 20px 24px;
            box-shadow: none;
            transition: all var(--transition);
        }

        .accordion-button:not(.collapsed) {
            background: var(--secondary-light);
            color: var(--primary);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: none;
            border-color: var(--secondary);
        }

        .accordion-button::after {
            background-size: 18px;
        }

        .accordion-body {
            padding: 20px 24px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
            border-top: 1px dashed var(--border-light);
        }

        .cta-section {
            background: linear-gradient(120deg, var(--primary), var(--primary-light)), url('/assets/images/backpic/back-3.png') center center/cover no-repeat;
            background-blend-mode: overlay;
            color: #fff;
            text-align: center;
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(240, 164, 32, .3), transparent 60%);
            left: -120px;
            top: -120px;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 38px;
            font-weight: 900;
            margin-bottom: 16px;
        }

        .cta-inner p {
            font-size: 17px;
            color: rgba(255, 255, 255, .82);
            margin-bottom: 32px;
        }

        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, .75);
            padding: 72px 0 30px;
        }

        .footer-brand {
            font-size: 28px;
            font-weight: 900;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -1px;
        }

        .footer-brand .logo-accent {
            color: var(--secondary);
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            max-width: 360px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .footer-link-group h5 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .footer-link-group ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-link-group ul li {
            margin-bottom: 10px;
        }

        .footer-link-group ul a {
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            transition: color var(--transition);
        }

        .footer-link-group ul a:hover {
            color: var(--secondary);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            margin-top: 50px;
            padding-top: 26px;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, .4);
        }

        .footer-bottom .sep {
            margin: 0 12px;
            color: rgba(255, 255, 255, .2);
        }

        .btn-back-top {
            position: fixed;
            right: 24px;
            bottom: 24px;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--primary);
            color: #fff;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-md);
            opacity: 0;
            visibility: hidden;
            transition: all var(--transition);
            z-index: 998;
        }

        .btn-back-top.show {
            opacity: 1;
            visibility: visible;
        }

        .btn-back-top:hover {
            background: var(--secondary);
            color: var(--primary);
            transform: translateY(-4px);
        }

        @media (max-width: 1024px) {
            .page-hero h1 {
                font-size: 42px;
            }
            .section-head h2 {
                font-size: 32px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-wrapper {
                grid-template-columns: repeat(2, 1fr);
            }
            .deep-grid {
                grid-template-columns: 1fr;
                gap: 44px;
            }
            .deep-image img {
                height: 380px;
            }
        }

        @media (max-width: 768px) {
            .header-left,
            .header-right {
                display: none;
            }
            .brand-logo {
                position: relative;
                left: auto;
                top: auto;
                transform: none;
                font-size: 24px;
            }
            .header-inner {
                justify-content: space-between;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .page-hero {
                padding: 80px 0 70px;
            }
            .page-hero h1 {
                font-size: 34px;
            }
            .hero-sub {
                font-size: 16px;
            }
            .section-pad {
                padding: 64px 0;
            }
            .section-pad-sm {
                padding: 48px 0;
            }
            .section-head {
                margin-bottom: 40px;
            }
            .section-head h2 {
                font-size: 28px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-card {
                padding: 24px 16px;
            }
            .stat-num {
                font-size: 32px;
            }
            .deep-image img {
                height: 300px;
            }
            .process-wrapper {
                grid-template-columns: 1fr;
            }
            .timeline-item {
                padding-left: 64px;
            }
            .timeline-list::before {
                left: 20px;
            }
            .timeline-dot {
                left: 10px;
            }
            .card-thumb img {
                height: 190px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 4px;
            }
            .footer-bottom .sep {
                display: none;
            }
            .cta-inner h2 {
                font-size: 30px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }
            .brand-logo {
                font-size: 22px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .hero-topic-tags span {
                font-size: 12px;
                padding: 5px 12px;
            }
            .btn-brand,
            .btn-outline-light {
                padding: 12px 24px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }
            .hero-topic-tags {
                gap: 6px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .process-wrapper {
                grid-template-columns: 1fr;
            }
            .timeline-item {
                padding-left: 54px;
            }
            .timeline-card {
                padding: 18px;
            }
            .card-body {
                padding: 22px;
            }
            .section-head h2 {
                font-size: 25px;
            }
            .deep-content h2 {
                font-size: 26px;
            }
        }

/* roulang page: article */
:root {
            --primary: #e6392e;
            --primary-dark: #c72518;
            --primary-light: #ffe0db;
            --secondary: #f5b301;
            --secondary-dark: #d99a00;
            --dark: #181832;
            --dark-800: #232345;
            --bg: #f6f6fb;
            --bg-white: #ffffff;
            --text: #181832;
            --text-muted: #6f6f85;
            --border: #e7e7f0;
            --radius: 18px;
            --radius-sm: 12px;
            --radius-pill: 50rem;
            --shadow-sm: 0 4px 12px rgba(24, 24, 50, .06);
            --shadow: 0 12px 32px rgba(24, 24, 50, .08);
            --shadow-lg: 0 24px 60px rgba(24, 24, 50, .12);
            --transition: all .3s ease;
        }

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

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            margin: 0 0 .5rem;
        }

        .container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-pad {
            padding: 80px 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: .5rem;
            letter-spacing: -0.02em;
        }

        .section-sub {
            color: var(--text-muted);
            margin-bottom: 2rem;
            font-size: 1rem;
        }

        /* ========= Header ========= */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, .95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 0;
        }

        .site-header .container {
            max-width: 1280px;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 12px 0;
            position: relative;
        }

        .header-left,
        .header-right {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
        }

        .header-right {
            justify-content: flex-end;
        }

        .brand-logo {
            font-size: 1.65rem;
            font-weight: 900;
            letter-spacing: -.02em;
            display: flex;
            align-items: baseline;
            gap: 2px;
            color: var(--dark);
            padding: 4px 0;
            white-space: nowrap;
        }

        .brand-logo .logo-accent {
            color: var(--primary);
        }

        .logo-hover {
            transition: var(--transition);
        }

        .logo-hover:hover {
            transform: scale(1.02);
            color: var(--dark);
        }

        .nav-link-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: .93rem;
            color: var(--text);
            background: transparent;
            transition: var(--transition);
        }

        .nav-link-item i {
            font-size: .85rem;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .nav-link-item:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
        }

        .nav-link-item:hover i {
            color: var(--primary);
        }

        .nav-link-item.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(230, 57, 46, .25);
        }

        .nav-link-item.active i {
            color: #fff;
        }

        .mobile-menu-btn {
            display: none;
            width: 44px;
            height: 44px;
            border: none;
            border-radius: var(--radius-sm);
            background: var(--bg);
            color: var(--text);
            font-size: 1.2rem;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .mobile-menu-btn:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            padding: 12px 24px 20px;
            background: #fff;
            border-top: 1px solid var(--border);
            gap: 4px;
        }

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

        .mobile-link {
            display: block;
            padding: 12px 14px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            color: var(--text);
            background: transparent;
        }

        .mobile-link.active {
            background: var(--primary-light);
            color: var(--primary-dark);
        }

        .mobile-link:hover {
            background: var(--bg);
        }

        @media (max-width: 768px) {
            .header-left,
            .header-right {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .header-inner {
                justify-content: space-between;
            }
            .brand-logo {
                font-size: 1.4rem;
            }
        }

        /* ========= Article Hero ========= */
        .article-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            padding: 80px 0 60px;
            color: #fff;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(24, 24, 50, .93) 0%, rgba(24, 24, 50, .76) 50%, rgba(230, 57, 46, .35) 100%);
            z-index: 0;
        }

        .article-hero .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb-bar {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: .9rem;
            opacity: .85;
            margin-bottom: 28px;
        }

        .breadcrumb-bar a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, .85);
        }

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

        .breadcrumb-bar .sep {
            opacity: .5;
        }

        .breadcrumb-bar .current {
            color: var(--secondary);
            font-weight: 600;
        }

        .article-cat {
            display: inline-block;
            background: var(--secondary);
            color: var(--dark);
            font-size: .85rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
            letter-spacing: .02em;
        }

        .article-hero h1.hero-title {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.28;
            max-width: 860px;
            margin-bottom: 18px;
            letter-spacing: -.01em;
            text-shadow: 0 2px 20px rgba(0, 0, 0, .2);
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 18px;
            font-size: .9rem;
            color: rgba(255, 255, 255, .8);
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta i {
            color: var(--secondary);
        }

        @media (max-width: 768px) {
            .article-hero {
                padding: 60px 0 40px;
            }
            .article-hero h1.hero-title {
                font-size: 1.7rem;
            }
        }

        /* ========= Article Main ========= */
        .article-main {
            padding: 60px 0 80px;
        }

        .article-card {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px 44px;
            border: 1px solid var(--border);
        }

        .article-body {
            font-size: 15.5px;
            line-height: 1.9;
            color: var(--text);
        }

        .article-body p {
            margin-bottom: 1.4em;
        }

        .article-body h2 {
            font-size: 1.45rem;
            margin-top: 1.8em;
            margin-bottom: .8em;
            padding-left: 14px;
            border-left: 4px solid var(--primary);
        }

        .article-body h3 {
            font-size: 1.2rem;
            margin-top: 1.5em;
            margin-bottom: .6em;
        }

        .article-body img {
            border-radius: var(--radius-sm);
            margin: 1.5em auto;
            box-shadow: var(--shadow-sm);
        }

        .article-body blockquote {
            background: var(--bg);
            border-left: 4px solid var(--secondary);
            padding: 16px 20px;
            margin: 1.5em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-muted);
        }

        .article-body ul,
        .article-body ol {
            padding-left: 1.4em;
            margin-bottom: 1.4em;
        }

        .article-body ul li,
        .article-body ol li {
            margin-bottom: .4em;
        }

        .article-body a {
            color: var(--primary);
            text-decoration: underline;
        }

        .article-body a:hover {
            color: var(--primary-dark);
        }

        .not-found-box {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 60px 40px;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }

        .not-found-box .nf-icon {
            font-size: 3rem;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .not-found-box h2 {
            font-size: 1.5rem;
            margin-bottom: 8px;
        }

        .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .btn-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-pill);
            padding: 10px 24px;
            font-weight: 600;
            font-size: .95rem;
            transition: var(--transition);
        }

        .btn-custom:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(230, 57, 46, .3);
        }

        .btn-custom.btn-outline {
            background: transparent;
            color: var(--dark);
            border: 2px solid var(--border);
        }

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

        .article-tags {
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
        }

        .tag-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 700;
            font-size: .9rem;
            color: var(--text);
        }

        .tag-badge {
            display: inline-block;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 4px 14px;
            font-size: .82rem;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .tag-badge:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary-dark);
        }

        /* ========= Sidebar ========= */
        .sidebar {
            position: sticky;
            top: 100px;
        }

        .sidebar-widget {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 26px;
            margin-bottom: 24px;
        }

        .sidebar-widget .widget-title {
            font-size: 1.05rem;
            font-weight: 800;
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--bg);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-widget .widget-title i {
            color: var(--primary);
        }

        .info-widget .info-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .info-widget .info-list li {
            display: flex;
            justify-content: space-between;
            padding: 8px 0;
            border-bottom: 1px dashed var(--border);
            font-size: .9rem;
        }

        .info-widget .info-list li:last-child {
            border-bottom: none;
        }

        .info-widget .info-list .label {
            color: var(--text-muted);
        }

        .info-widget .info-list .value {
            font-weight: 600;
            color: var(--text);
            text-align: right;
        }

        .category-widget .cat-list {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .category-widget .cat-link {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            background: var(--bg);
            font-size: .92rem;
            font-weight: 500;
            transition: var(--transition);
        }

        .category-widget .cat-link i {
            color: var(--text-muted);
            font-size: .8rem;
        }

        .category-widget .cat-link:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateX(4px);
        }

        .category-widget .cat-link.active {
            background: var(--primary);
            color: #fff;
        }

        .category-widget .cat-link.active i {
            color: #fff;
        }

        .tag-widget .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-widget .cloud-tag {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 4px 12px;
            font-size: .82rem;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .tag-widget .cloud-tag:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary-dark);
        }

        @media (max-width: 992px) {
            .sidebar {
                position: static;
                margin-top: 40px;
            }
        }

        @media (max-width: 768px) {
            .article-card {
                padding: 28px 20px;
            }
        }

        /* ========= Related Section ========= */
        .related-section {
            padding: 60px 0 80px;
            background: var(--bg);
        }

        .related-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .related-card .card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }

        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

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

        .related-card .card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(24, 24, 50, .35), transparent 60%);
        }

        .related-card .card-body {
            padding: 22px 24px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card .card-cat {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: .78rem;
            font-weight: 700;
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            align-self: flex-start;
            margin-bottom: 10px;
        }

        .related-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .related-card p {
            color: var(--text-muted);
            font-size: .9rem;
            margin-top: auto;
            margin-bottom: 16px;
            flex: 1;
        }

        .related-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: .88rem;
            color: var(--primary);
        }

        .related-card .card-link:hover {
            color: var(--primary-dark);
            gap: 10px;
        }

        /* ========= FAQ Section ========= */
        .faq-section {
            padding: 80px 0;
            background: var(--bg-white);
        }

        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .accordion-item {
            border: 1px solid var(--border) !important;
            border-radius: var(--radius-sm) !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .accordion-button {
            font-weight: 700;
            font-size: .98rem;
            color: var(--text);
            background: #fff;
            padding: 18px 22px;
            box-shadow: none !important;
        }

        .accordion-button:not(.collapsed) {
            background: var(--primary-light);
            color: var(--primary-dark);
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(230, 57, 46, .15) !important;
        }

        .accordion-body {
            background: #fff;
            color: var(--text-muted);
            font-size: .92rem;
            line-height: 1.8;
            padding: 8px 22px 20px;
        }

        .faq-more {
            text-align: center;
            margin-top: 30px;
        }

        /* ========= CTA Section ========= */
        .cta-section {
            position: relative;
            padding: 80px 0;
            background: var(--dark);
            color: #fff;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(230, 57, 46, .35) 0%, transparent 70%);
            border-radius: 50%;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(245, 179, 1, .25) 0%, transparent 70%);
            border-radius: 50%;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, .75);
            margin-bottom: 28px;
            font-size: 1rem;
        }

        .cta-btns {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 14px;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--secondary);
            color: var(--dark);
            border: none;
            border-radius: var(--radius-pill);
            padding: 12px 30px;
            font-weight: 700;
            font-size: .95rem;
            transition: var(--transition);
        }

        .btn-cta:hover {
            background: #ffc21a;
            color: var(--dark);
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(245, 179, 1, .3);
        }

        .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, .3);
            border-radius: var(--radius-pill);
            padding: 12px 30px;
            font-weight: 600;
            font-size: .95rem;
            transition: var(--transition);
        }

        .btn-cta-outline:hover {
            border-color: #fff;
            color: #fff;
            transform: translateY(-3px);
        }

        /* ========= Footer ========= */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, .75);
            padding: 60px 0 0;
            border-top: 4px solid var(--primary);
        }

        .site-footer .footer-brand {
            font-size: 1.6rem;
            font-weight: 900;
            color: #fff;
            margin-bottom: 14px;
        }

        .site-footer .footer-brand .logo-accent {
            color: var(--secondary);
        }

        .footer-desc {
            font-size: .92rem;
            line-height: 1.7;
            max-width: 340px;
            color: rgba(255, 255, 255, .6);
        }

        .footer-link-group h5 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, .12);
        }

        .footer-link-group ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-link-group ul li {
            margin-bottom: 10px;
        }

        .footer-link-group ul li a {
            color: rgba(255, 255, 255, .6);
            font-size: .9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .footer-link-group ul li a:hover {
            color: var(--secondary);
            transform: translateX(4px);
        }

        .footer-link-group ul li a::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--secondary);
            opacity: .5;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            padding: 22px 0;
            margin-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, .1);
            font-size: .84rem;
            color: rgba(255, 255, 255, .45);
        }

        .footer-bottom .sep {
            opacity: .3;
        }

        @media (max-width: 768px) {
            .section-pad {
                padding: 50px 0;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 4px;
                text-align: center;
            }
            .footer-bottom .sep {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .article-main {
                padding: 40px 0 50px;
            }
            .cta-inner h2 {
                font-size: 1.5rem;
            }
            .related-card .card-body {
                padding: 18px 18px 22px;
            }
        }