/* roulang page: index */
:root {
            --primary: #c8a45a;
            --primary-dark: #a9853e;
            --primary-light: #e2c578;
            --dark: #0d1b2f;
            --dark-2: #152a45;
            --dark-3: #1d3655;
            --body-bg: #f6f4ee;
            --white: #ffffff;
            --text: #1e2a3d;
            --text-muted: #6b7590;
            --border: #e8e2d6;
            --radius-lg: 20px;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 12px rgba(13, 27, 47, .06);
            --shadow-md: 0 10px 36px rgba(13, 27, 47, .10);
            --shadow-lg: 0 24px 64px rgba(13, 27, 47, .14);
            --transition: all .3s cubic-bezier(.4, 0, .2, 1);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
        }

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

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

        body {
            margin: 0;
            font-family: var(--font-family);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text);
            background: var(--body-bg);
            padding-top: 76px;
        }

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

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

        a:hover {
            text-decoration: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== 导航栏 ===== */
        .custom-navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            padding: 14px 0;
            background: rgba(13, 27, 47, .92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
            transition: var(--transition);
        }

        .custom-navbar.navbar-scrolled {
            background: rgba(13, 27, 47, .98);
            box-shadow: 0 8px 32px rgba(0, 0, 0, .25);
            padding: 10px 0;
        }

        .navbar-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--white) !important;
            letter-spacing: .02em;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .navbar-brand i {
            color: var(--primary);
            font-size: 1.35rem;
        }

        .custom-navbar .nav-link {
            color: rgba(255, 255, 255, .82) !important;
            font-weight: 500;
            font-size: .95rem;
            padding: 8px 18px !important;
            border-radius: 50px;
            transition: var(--transition);
            position: relative;
        }

        .custom-navbar .nav-link:hover,
        .custom-navbar .nav-link.active {
            color: var(--primary-light) !important;
            background: rgba(200, 164, 90, .12);
        }

        .custom-navbar .nav-link::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 24px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            transition: var(--transition);
        }

        .custom-navbar .nav-link.active::after,
        .custom-navbar .nav-link:hover::after {
            transform: translateX(-50%) scaleX(1);
        }

        .btn-cta-nav {
            background: linear-gradient(135deg, #e2c578, #c8a45a);
            color: var(--dark) !important;
            font-weight: 600;
            font-size: .9rem;
            border-radius: 50px;
            padding: 10px 26px;
            border: none;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(200, 164, 90, .3);
        }

        .btn-cta-nav:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 164, 90, .45);
            color: var(--dark) !important;
        }

        .navbar-toggler {
            border: 2px solid rgba(255, 255, 255, .3);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255,255,255,.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            padding: 100px 0 80px;
            background: linear-gradient(135deg, #0d1b2f 0%, #1a2f4f 60%, #1d3655 100%);
            overflow: hidden;
            isolation: isolate;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            z-index: -2;
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 47, .88) 0%, rgba(13, 27, 47, .72) 60%, rgba(29, 54, 85, .78) 100%);
        }

        .hero-content {
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(200, 164, 90, .15);
            border: 1px solid rgba(200, 164, 90, .4);
            color: var(--primary-light);
            font-size: .82rem;
            font-weight: 600;
            padding: 7px 20px;
            border-radius: 50px;
            letter-spacing: .06em;
            margin-bottom: 28px;
            backdrop-filter: blur(4px);
        }

        .hero h1 {
            font-size: clamp(2.4rem, 5vw, 3.8rem);
            font-weight: 800;
            color: var(--white);
            line-height: 1.2;
            letter-spacing: .01em;
            margin-bottom: 20px;
            background: linear-gradient(120deg, #fff 30%, #e2c578 70%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, .85);
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }

        .hero-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-gold {
            background: linear-gradient(135deg, #e2c578, #c8a45a 80%);
            color: var(--dark);
            font-weight: 600;
            border-radius: 50px;
            padding: 13px 36px;
            font-size: .95rem;
            border: none;
            box-shadow: 0 6px 24px rgba(200, 164, 90, .35);
            transition: var(--transition);
        }

        .btn-gold:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(200, 164, 90, .5);
            color: var(--dark);
        }

        .btn-outline-light {
            border-radius: 50px;
            padding: 13px 36px;
            font-size: .95rem;
            font-weight: 500;
            border: 2px solid rgba(255, 255, 255, .6);
            color: #fff;
            transition: var(--transition);
            background: transparent;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-3px);
        }

        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 48px;
            margin-top: 60px;
            flex-wrap: wrap;
        }

        .hero-stats .stat {
            text-align: center;
        }

        .hero-stats .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-light);
            display: block;
            line-height: 1.2;
        }

        .hero-stats .label {
            font-size: .85rem;
            color: rgba(255, 255, 255, .6);
            letter-spacing: .04em;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 90px 0;
            position: relative;
        }

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

        .section-title {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }

        .section-title .subtitle {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary-dark);
            font-size: .82rem;
            font-weight: 700;
            letter-spacing: .1em;
            text-transform: uppercase;
            background: rgba(200, 164, 90, .1);
            padding: 6px 18px;
            border-radius: 50px;
            margin-bottom: 14px;
        }

        .section-title h2 {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 12px;
        }

        .section-title p {
            color: var(--text-muted);
            font-size: .95rem;
            line-height: 1.7;
        }

        /* ===== 关于 ===== */
        .about-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .about-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
            aspect-ratio: 4/3;
        }

        .about-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .about-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(200, 164, 90, .12), transparent 50%);
        }

        .about-content h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .about-content p {
            color: var(--text-muted);
            margin-bottom: 20px;
            line-height: 1.8;
        }

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

        .about-points li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            margin-bottom: 16px;
            color: var(--text);
            font-weight: 500;
        }

        .about-points li i {
            color: var(--primary);
            margin-top: 3px;
            font-size: 1.1rem;
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(200, 164, 90, .12);
            border-radius: 50%;
        }

        /* ===== 分类入口 ===== */
        .category-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(200, 164, 90, .4);
        }

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

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

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

        .category-card .card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(13, 27, 47, .4), transparent 60%);
        }

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

        .category-card .card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }

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

        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 18px;
        }

        .tag {
            background: rgba(200, 164, 90, .1);
            color: var(--primary-dark);
            font-size: .75rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 50px;
        }

        .btn-card {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: .88rem;
            color: var(--primary-dark);
            transition: var(--transition);
        }

        .btn-card:hover {
            gap: 14px;
            color: var(--dark);
        }

        /* ===== 特色 ===== */
        .feature-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, transparent, var(--primary), transparent);
            opacity: 0;
            transition: var(--transition);
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }

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

        .feature-icon {
            width: 68px;
            height: 68px;
            background: linear-gradient(135deg, rgba(200, 164, 90, .15), rgba(200, 164, 90, .05));
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.6rem;
            color: var(--primary-dark);
            transition: var(--transition);
        }

        .feature-card:hover .feature-icon {
            transform: scale(1.08) rotate(-3deg);
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--dark);
        }

        .feature-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .feature-card p {
            font-size: .88rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== 资讯列表 ===== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 24px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 22px 28px;
            transition: var(--transition);
        }

        .news-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: rgba(200, 164, 90, .4);
        }

        .news-item .news-category {
            flex-shrink: 0;
            background: rgba(200, 164, 90, .12);
            color: var(--primary-dark);
            font-size: .75rem;
            font-weight: 700;
            padding: 5px 16px;
            border-radius: 50px;
            letter-spacing: .02em;
        }

        .news-item .news-content {
            flex: 1;
            min-width: 0;
        }

        .news-item .news-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 4px;
            line-height: 1.5;
            transition: var(--transition);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

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

        .news-item .news-excerpt {
            font-size: .85rem;
            color: var(--text-muted);
            margin: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-item .news-meta {
            flex-shrink: 0;
            text-align: right;
            font-size: .78rem;
            color: #98a1b3;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .news-empty {
            background: var(--white);
            border: 1px dashed var(--border);
            border-radius: var(--radius);
            padding: 48px 20px;
            text-align: center;
            color: var(--text-muted);
        }

        /* ===== 流程 ===== */
        .process-section {
            background: linear-gradient(135deg, #0d1b2f, #1a2f4f);
            padding: 90px 0;
            color: #fff;
        }

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

        .process-section .section-title p {
            color: rgba(255, 255, 255, .6);
        }

        .process-section .section-title .subtitle {
            color: var(--primary-light);
            background: rgba(200, 164, 90, .15);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            margin-top: 20px;
        }

        .process-step {
            text-align: center;
            padding: 32px 24px;
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius-lg);
            transition: var(--transition);
            position: relative;
        }

        .process-step:hover {
            background: rgba(255, 255, 255, .08);
            transform: translateY(-4px);
            border-color: rgba(200, 164, 90, .3);
        }

        .process-step .step-num {
            font-size: .8rem;
            font-weight: 700;
            color: var(--primary-light);
            letter-spacing: .14em;
            margin-bottom: 16px;
            display: block;
        }

        .process-step .step-icon {
            width: 72px;
            height: 72px;
            margin: 0 auto 20px;
            background: rgba(200, 164, 90, .14);
            border-radius: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.7rem;
            color: var(--primary-light);
            transition: var(--transition);
        }

        .process-step:hover .step-icon {
            transform: scale(1.06);
            background: rgba(200, 164, 90, .24);
        }

        .process-step h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: #fff;
        }

        .process-step p {
            font-size: .88rem;
            color: rgba(255, 255, 255, .6);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .custom-accordion .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius) !important;
            margin-bottom: 14px;
            overflow: hidden;
            background: var(--white);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .custom-accordion .accordion-item:hover {
            border-color: rgba(200, 164, 90, .4);
        }

        .custom-accordion .accordion-button {
            font-size: .95rem;
            font-weight: 600;
            color: var(--dark);
            background: var(--white);
            padding: 20px 28px;
            box-shadow: none !important;
            transition: var(--transition);
            border: none;
        }

        .custom-accordion .accordion-button:not(.collapsed) {
            color: var(--primary-dark);
            background: rgba(200, 164, 90, .05);
        }

        .custom-accordion .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23c8a45a'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
        }

        .custom-accordion .accordion-button:focus {
            box-shadow: none;
        }

        .custom-accordion .accordion-body {
            padding: 0 28px 24px;
            color: var(--text-muted);
            font-size: .9rem;
            line-height: 1.8;
            border-top: 1px solid rgba(200, 164, 90, .08);
            padding-top: 18px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 90px 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            text-align: center;
            isolation: isolate;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 47, .9), rgba(29, 54, 85, .85));
            z-index: -1;
        }

        .cta-section h2 {
            color: #fff;
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, .7);
            font-size: 1rem;
            max-width: 620px;
            margin: 0 auto 32px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark);
            padding: 64px 0 0;
            color: rgba(255, 255, 255, .7);
        }

        .footer-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

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

        .footer-desc {
            font-size: .88rem;
            color: rgba(255, 255, 255, .55);
            line-height: 1.7;
            max-width: 340px;
            margin-bottom: 0;
        }

        .footer-heading {
            font-size: .92rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: .04em;
        }

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

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, .6);
            font-size: .88rem;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--primary-light);
            padding-left: 6px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            margin-top: 48px;
            padding: 22px 0;
            text-align: center;
            font-size: .82rem;
            color: rgba(255, 255, 255, .4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, .5);
        }

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

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .about-wrap {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .about-img {
                max-width: 640px;
                margin: 0 auto;
            }

            .process-steps {
                gap: 20px;
            }

            .news-item {
                flex-wrap: wrap;
                gap: 12px;
            }

            .news-item .news-meta {
                width: 100%;
                text-align: left;
                flex-direction: row;
                gap: 16px;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 64px;
            }

            .custom-navbar {
                padding: 10px 0;
            }

            .navbar-brand {
                font-size: 1.1rem;
            }

            .hero {
                min-height: auto;
                padding: 90px 0 60px;
            }

            .hero h1 {
                font-size: 2rem;
            }

            .hero-desc {
                font-size: .95rem;
            }

            .hero-buttons .btn {
                width: 100%;
                max-width: 280px;
                margin: 0 auto;
            }

            .hero-stats {
                gap: 24px;
                margin-top: 40px;
            }

            .hero-stats .num {
                font-size: 1.6rem;
            }

            .section {
                padding: 60px 0;
            }

            .process-steps {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .news-item {
                padding: 18px 20px;
            }

            .news-item .news-category {
                font-size: .7rem;
                padding: 4px 12px;
            }

            .news-item .news-title {
                white-space: normal;
                -webkit-line-clamp: 2;
                display: -webkit-box;
                -webkit-box-orient: vertical;
            }

            .news-item .news-excerpt {
                white-space: normal;
                -webkit-line-clamp: 2;
                display: -webkit-box;
                -webkit-box-orient: vertical;
            }

            .footer-widget {
                margin-bottom: 32px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .hero h1 {
                font-size: 1.7rem;
            }

            .hero-badge {
                font-size: .72rem;
                padding: 5px 14px;
            }

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

            .hero-stats {
                gap: 16px;
            }

            .hero-stats .num {
                font-size: 1.3rem;
            }

            .hero-stats .label {
                font-size: .75rem;
            }

            .section-title h2 {
                font-size: 1.5rem;
            }

            .feature-card {
                padding: 28px 20px;
            }

            .about-content h2 {
                font-size: 1.4rem;
            }

            .news-item .news-meta {
                flex-direction: column;
                gap: 2px;
            }

            .cta-section {
                padding: 60px 0;
                background-attachment: scroll;
            }

            .btn-gold,
            .btn-outline-light {
                padding: 11px 26px;
                font-size: .88rem;
            }
        }

        @media (max-width: 360px) {
            .hero-stats .label {
                font-size: .7rem;
            }

            .hero-stats .num {
                font-size: 1.1rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1e3a8a;
            --primary-dark: #172f6b;
            --primary-light: #3b5bdb;
            --accent: #f59e0b;
            --accent-hover: #d97706;
            --bg-light: #f8fafc;
            --bg-soft: #eef2f7;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --white: #ffffff;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 10px rgba(30, 41, 59, .06);
            --shadow-md: 0 10px 30px rgba(30, 41, 59, .08);
            --shadow-lg: 0 20px 50px rgba(30, 41, 59, .12);
            --transition: all .3s ease;
            --font-base: "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-base);
            color: var(--text-main);
            background: var(--white);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: var(--primary);
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1240px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Custom Navbar ===== */
        .custom-navbar {
            background: rgba(255, 255, 255, .95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            padding-top: 14px;
            padding-bottom: 14px;
            box-shadow: 0 2px 20px rgba(30, 41, 59, .04);
            position: sticky;
            top: 0;
            z-index: 1080;
        }
        .custom-navbar .navbar-brand {
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: .5px;
        }
        .custom-navbar .navbar-brand i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        .custom-navbar .navbar-brand:hover {
            color: var(--primary);
        }
        .custom-navbar .navbar-nav {
            gap: 4px;
        }
        .custom-navbar .nav-link {
            font-weight: 600;
            font-size: .95rem;
            color: var(--text-muted);
            padding: 10px 18px !important;
            border-radius: 50px;
            transition: var(--transition);
            position: relative;
        }
        .custom-navbar .nav-link:hover {
            color: var(--primary);
            background: var(--bg-soft);
        }
        .custom-navbar .nav-link.active {
            color: var(--primary);
            background: rgba(30, 58, 138, .08);
        }
        .custom-navbar .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 22px;
            height: 3px;
            border-radius: 4px;
            background: var(--accent);
        }
        .btn-cta-nav {
            background: linear-gradient(135deg, var(--accent), #f59e0b);
            color: #1e293b;
            font-weight: 700;
            font-size: .93rem;
            border: none;
            border-radius: 50px;
            padding: 10px 26px;
            box-shadow: 0 6px 18px rgba(245, 158, 11, .3);
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-cta-nav:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(245, 158, 11, .4);
            color: #0f172a;
            background: linear-gradient(135deg, var(--accent-hover), #f59e0b);
        }
        .custom-navbar .navbar-toggler {
            border: 2px solid var(--border);
            border-radius: 10px;
            padding: 4px 10px;
        }
        .custom-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 4px rgba(30, 58, 138, .1);
        }

        /* ===== Category Hero ===== */
        .category-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(15, 23, 42, .92), rgba(30, 58, 138, .88)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 100px 0 90px;
            color: #f8fafc;
        }
        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .2);
            border-radius: 50px;
            padding: 6px 18px;
            font-size: .85rem;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 22px;
            backdrop-filter: blur(6px);
        }
        .category-hero .hero-badge i {
            color: var(--accent);
        }
        .category-hero h1 {
            font-size: 2.9rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }
        .category-hero h1 span {
            color: var(--accent);
        }
        .category-hero .hero-desc {
            font-size: 1.12rem;
            color: rgba(248, 250, 252, .85);
            max-width: 620px;
            line-height: 1.8;
        }
        .hero-meta {
            margin-top: 28px;
        }
        .hero-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .1);
            border-radius: 12px;
            padding: 10px 18px;
            font-size: .92rem;
            color: #e2e8f0;
            margin-right: 10px;
            margin-bottom: 8px;
        }
        .hero-meta .meta-item i {
            color: var(--accent);
        }

        /* ===== Section common ===== */
        .section-block {
            padding: 90px 0;
        }
        .section-block.bg-light {
            background: var(--bg-light);
        }
        .section-head {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 56px;
        }
        .section-head .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            background: rgba(30, 58, 138, .08);
            font-size: .88rem;
            font-weight: 700;
            border-radius: 50px;
            padding: 6px 20px;
            margin-bottom: 18px;
        }
        .section-head .section-tag i {
            color: var(--accent);
        }
        .section-head h2 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.25;
            margin-bottom: 16px;
        }
        .section-head p {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ===== Guide Intro ===== */
        .guide-intro-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            align-items: center;
        }
        .intro-media {
            flex: 1 1 420px;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .intro-media img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .intro-media:hover img {
            transform: scale(1.03);
        }
        .intro-content {
            flex: 1 1 420px;
        }
        .intro-content h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 20px;
            color: var(--text-main);
            line-height: 1.3;
        }
        .intro-content .highlight {
            color: var(--accent);
            font-weight: 700;
        }
        .intro-content .intro-text {
            color: var(--text-muted);
            font-size: 1.02rem;
            line-height: 1.9;
            margin-bottom: 24px;
        }
        .intro-points {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 30px;
        }
        .intro-point {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 10px 18px;
            font-size: .92rem;
            font-weight: 600;
            color: var(--text-main);
            transition: var(--transition);
        }
        .intro-point:hover {
            border-color: var(--primary-light);
            background: rgba(30, 58, 138, .04);
        }
        .intro-point i {
            color: var(--primary-light);
        }
        .btn-primary-custom {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-weight: 700;
            font-size: .95rem;
            border: none;
            border-radius: 50px;
            padding: 14px 34px;
            box-shadow: 0 8px 24px rgba(30, 58, 138, .25);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary-custom:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 32px rgba(30, 58, 138, .32);
            color: #fff;
        }
        .btn-outline-custom {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
            font-weight: 700;
            font-size: .95rem;
            border-radius: 50px;
            padding: 12px 30px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-outline-custom:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ===== Collection Cards ===== */
        .collection-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .collection-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .collection-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .collection-card .card-media {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }
        .collection-card .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .collection-card:hover .card-media img {
            transform: scale(1.05);
        }
        .collection-card .card-label {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(255, 255, 255, .95);
            color: var(--primary);
            font-size: .82rem;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 30px;
            box-shadow: 0 4px 12px rgba(15, 23, 42, .12);
        }
        .collection-card .card-body {
            padding: 24px 24px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .collection-card .card-title {
            font-size: 1.28rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 12px;
            line-height: 1.4;
            transition: var(--transition);
        }
        .collection-card .card-title a {
            color: inherit;
        }
        .collection-card .card-title a:hover {
            color: var(--primary);
        }
        .collection-card .card-desc {
            font-size: .95rem;
            color: var(--text-muted);
            line-height: 1.8;
            flex: 1;
            margin-bottom: 16px;
        }
        .collection-card .card-footer {
            border-top: 1px solid var(--border);
            padding-top: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .card-tags .tag {
            background: var(--bg-soft);
            color: var(--text-muted);
            font-size: .78rem;
            font-weight: 600;
            border-radius: 6px;
            padding: 3px 10px;
            transition: var(--transition);
        }
        .card-tags .tag:hover {
            background: rgba(30, 58, 138, .1);
            color: var(--primary);
        }
        .card-link {
            color: var(--primary);
            font-size: .88rem;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .card-link i {
            transition: transform .3s;
            font-size: .8rem;
        }
        .card-link:hover {
            color: var(--accent);
        }
        .card-link:hover i {
            transform: translateX(4px);
        }

        /* ===== Steps / Flow ===== */
        .steps-section {
            background: linear-gradient(160deg, #0f172a, #1e3a8a);
            padding: 90px 0;
            color: #e2e8f0;
        }
        .steps-section .section-head h2 {
            color: #f8fafc;
        }
        .steps-section .section-head p {
            color: rgba(226, 232, 240, .7);
        }
        .steps-section .section-tag {
            background: rgba(255, 255, 255, .1);
            color: #f8fafc;
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            counter-reset: step;
        }
        .step-card {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius);
            padding: 34px 24px;
            text-align: center;
            backdrop-filter: blur(8px);
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            background: rgba(255, 255, 255, .1);
            border-color: rgba(245, 158, 11, .4);
            transform: translateY(-4px);
        }
        .step-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 14px;
            font-style: italic;
        }
        .step-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #f8fafc;
            margin-bottom: 10px;
        }
        .step-card p {
            font-size: .88rem;
            color: rgba(226, 232, 240, .7);
            line-height: 1.7;
            margin: 0;
        }
        .step-card .step-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(245, 158, 11, .15);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.3rem;
            color: var(--accent);
            border: 1px solid rgba(245, 158, 11, .3);
        }

        /* ===== Topics / Features ===== */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
        }
        .topic-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 26px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            height: 100%;
        }
        .topic-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }
        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .topic-card:hover::before {
            opacity: 1;
        }
        .topic-card .topic-icon {
            width: 60px;
            height: 60px;
            border-radius: 14px;
            background: rgba(30, 58, 138, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 20px;
            transition: var(--transition);
        }
        .topic-card:hover .topic-icon {
            background: var(--primary);
            color: #fff;
        }
        .topic-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .topic-card p {
            font-size: .92rem;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 16px;
            padding: 0;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
        }
        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-md);
        }
        .faq-item summary {
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 26px;
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--text-main);
            transition: var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(30, 58, 138, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            flex-shrink: 0;
            transition: var(--transition);
        }
        .faq-item[open] summary .faq-icon {
            background: var(--accent);
            color: #1e293b;
        }
        .faq-item[open] summary .faq-icon i {
            transform: rotate(45deg);
        }
        .faq-item summary .faq-icon i {
            transition: transform .3s;
        }
        .faq-item .faq-content {
            padding: 0 26px 24px;
            color: var(--text-muted);
            line-height: 1.8;
            font-size: .96rem;
        }
        .faq-item .faq-content a {
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 90px 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, .94), rgba(30, 58, 138, .88)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            text-align: center;
            color: #f8fafc;
        }
        .cta-section h2 {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-section h2 span {
            color: var(--accent);
        }
        .cta-section p {
            font-size: 1.08rem;
            color: rgba(248, 250, 252, .8);
            max-width: 640px;
            margin: 0 auto 34px;
            line-height: 1.8;
        }
        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-cta-gold {
            background: linear-gradient(135deg, var(--accent), #fbbf24);
            color: #1e293b;
            font-weight: 800;
            font-size: 1rem;
            border: none;
            border-radius: 50px;
            padding: 16px 38px;
            box-shadow: 0 10px 28px rgba(245, 158, 11, .35);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-cta-gold:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 36px rgba(245, 158, 11, .45);
            color: #0f172a;
        }
        .btn-cta-ghost {
            background: rgba(255, 255, 255, .08);
            border: 2px solid rgba(255, 255, 255, .35);
            color: #f8fafc;
            font-weight: 700;
            font-size: 1rem;
            border-radius: 50px;
            padding: 14px 36px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            backdrop-filter: blur(6px);
        }
        .btn-cta-ghost:hover {
            background: rgba(255, 255, 255, .16);
            border-color: rgba(255, 255, 255, .7);
            color: #fff;
            transform: translateY(-3px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding-top: 70px;
            padding-bottom: 28px;
            border-top: 4px solid var(--accent);
        }
        .site-footer .footer-widget {
            margin-bottom: 30px;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: #f1f5f9;
            margin-bottom: 16px;
        }
        .site-footer .footer-brand i {
            color: var(--accent);
        }
        .site-footer .footer-desc {
            font-size: .92rem;
            line-height: 1.75;
            color: #64748b;
            max-width: 320px;
        }
        .site-footer .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: #e2e8f0;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 12px;
        }
        .site-footer .footer-heading::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 3px;
            border-radius: 4px;
            background: var(--accent);
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 10px;
            font-size: .9rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-footer .footer-links a {
            color: #94a3b8;
            transition: var(--transition);
            font-size: .9rem;
        }
        .site-footer .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, .2);
            padding-top: 24px;
            margin-top: 24px;
            text-align: center;
            font-size: .88rem;
            color: #64748b;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .collection-grid,
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .category-hero {
                padding: 70px 0 60px;
            }
            .category-hero h1 {
                font-size: 2.2rem;
            }
            .section-block {
                padding: 64px 0;
            }
            .section-head h2 {
                font-size: 1.9rem;
            }
            .collection-grid,
            .topics-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .guide-intro-grid {
                gap: 30px;
            }
            .intro-content h2 {
                font-size: 1.7rem;
            }
            .cta-section h2 {
                font-size: 1.9rem;
            }
            .custom-navbar .navbar-collapse {
                padding-top: 12px;
                padding-bottom: 8px;
            }
            .custom-navbar .nav-link.active::after {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .hero-meta .meta-item {
                padding: 8px 14px;
                font-size: .82rem;
            }
            .section-head {
                margin-bottom: 38px;
            }
            .section-head h2 {
                font-size: 1.6rem;
            }
            .btn-cta-gold,
            .btn-cta-ghost {
                width: 100%;
                justify-content: center;
            }
            .custom-navbar .navbar-brand {
                font-size: 1.1rem;
            }
            .collection-card .card-body {
                padding: 20px;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition: none !important;
                animation: none !important;
            }
        }

/* roulang page: article */
:root {
            --primary: #16337a;
            --primary-2: #244a9c;
            --primary-dark: #0d214f;
            --accent: #d4a24e;
            --accent-2: #e6b45e;
            --bg: #f4f6fb;
            --white: #ffffff;
            --text: #1e293b;
            --text-muted: #64748b;
            --border: #e5eaf2;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 10px rgba(13, 33, 79, .05);
            --shadow-md: 0 12px 30px rgba(13, 33, 79, .08);
            --shadow-lg: 0 24px 60px rgba(13, 33, 79, .12);
            --transition: all .28s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: var(--primary); transition: var(--transition); }
        a:hover { color: var(--accent); }
        ul, ol { list-style: none; padding: 0; margin: 0; }
        a:focus-visible, button:focus-visible, .nav-link:focus-visible {
            outline: 3px solid rgba(22, 51, 122, .35);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ========== 导航 ========== */
        .custom-navbar {
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 14px 0;
        }
        .navbar-brand {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--primary-dark) !important;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: .5px;
        }
        .navbar-brand i { color: var(--accent); font-size: 1.5rem; }
        .navbar-nav .nav-link {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text) !important;
            padding: 10px 18px !important;
            margin: 0 4px;
            border-radius: 8px;
            position: relative;
        }
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link.active {
            color: var(--primary) !important;
            background: rgba(22, 51, 122, .06);
        }
        .navbar-nav .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 18px;
            right: 18px;
            height: 3px;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--accent), var(--accent-2));
        }
        .btn-cta-nav {
            background: linear-gradient(135deg, var(--accent), var(--accent-2));
            color: var(--primary-dark) !important;
            font-weight: 800;
            border: none;
            border-radius: 50px;
            padding: 11px 28px;
            box-shadow: 0 6px 16px rgba(212, 162, 78, .35);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            white-space: nowrap;
        }
        .btn-cta-nav:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(212, 162, 78, .45);
            color: var(--white) !important;
        }
        .navbar-toggler { border: none; padding: 6px 10px; }
        .navbar-toggler:focus { box-shadow: none; }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2822,51,122,0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2.5' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ========== 页面头部 ========== */
        .page-banner {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            padding: 80px 0 115px;
            text-align: center;
            color: #fff;
        }
        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(13, 33, 79, .88), rgba(22, 51, 122, .72));
            z-index: 1;
        }
        .page-banner .container { position: relative; z-index: 2; }
        .breadcrumb {
            justify-content: center;
            background: transparent;
            margin-bottom: 22px;
            padding: 0;
        }
        .breadcrumb-item { font-size: .95rem; }
        .breadcrumb-item a { color: rgba(255, 255, 255, .78); }
        .breadcrumb-item a:hover { color: var(--accent-2); }
        .breadcrumb-item.active { color: var(--accent-2); }
        .breadcrumb-item + .breadcrumb-item::before { color: rgba(255, 255, 255, .5); }
        .page-banner h1 {
            font-size: 2.4rem;
            font-weight: 800;
            max-width: 820px;
            margin: 0 auto 18px;
            line-height: 1.3;
            text-shadow: 0 2px 20px rgba(0, 0, 0, .22);
        }
        .article-meta {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 14px;
        }
        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: .93rem;
            color: rgba(255, 255, 255, .88);
            background: rgba(255, 255, 255, .12);
            padding: 6px 16px;
            border-radius: 50px;
            backdrop-filter: blur(4px);
        }
        .meta-item i { color: var(--accent-2); }

        /* ========== 文章主体 ========== */
        .article-section { padding: 0 0 70px; }
        .article-main {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-md);
            padding: 38px;
            margin-top: -48px;
            position: relative;
            z-index: 3;
        }
        .article-cover {
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-bottom: 30px;
        }
        .article-cover img { width: 100%; object-fit: cover; }
        .article-content { color: #334155; font-size: 1.05rem; }
        .article-content p { margin-bottom: 1.5rem; line-height: 1.85; }
        .article-content h2 {
            font-size: 1.6rem;
            color: var(--primary-dark);
            margin: 2rem 0 1rem;
            font-weight: 800;
        }
        .article-content h3 {
            font-size: 1.3rem;
            color: var(--primary);
            margin: 1.5rem 0 .75rem;
            font-weight: 700;
        }
        .article-content ul,
        .article-content ol { margin: 1rem 0 1.5rem 1.2rem; list-style: disc; }
        .article-content ol { list-style: decimal; }
        .article-content li { margin-bottom: .6rem; }
        .article-content img { width: auto; max-width: 100%; border-radius: 12px; }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: #fdf9f0;
            padding: 1rem 1.25rem;
            border-radius: 0 8px 8px 0;
            margin: 1.5rem 0;
            color: #554b3a;
        }
        .article-content table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; }
        .article-content th,
        .article-content td { border: 1px solid var(--border); padding: 10px 14px; }
        .article-content th { background: #f6f8fd; font-weight: 700; }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 30px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }
        .article-tags .tag {
            background: #f1f4fb;
            color: var(--primary);
            font-size: .88rem;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 50px;
            transition: var(--transition);
        }
        .article-tags .tag:hover { background: var(--primary); color: #fff; }
        .post-nav {
            display: flex;
            justify-content: space-between;
            gap: 16px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .post-nav-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #f8fafc;
            border: 1px solid var(--border);
            padding: 10px 18px;
            border-radius: 10px;
            font-weight: 600;
            color: var(--text);
            transition: var(--transition);
        }
        .post-nav-link:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: #fff;
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }

        /* ========== 侧边栏 ========== */
        .sidebar-widget {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            margin-bottom: 24px;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-widget h3 {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-widget h3 i { color: var(--accent); }
        .sidebar-widget ul li {
            padding: 8px 0;
            border-bottom: 1px dashed var(--border);
            font-size: .95rem;
        }
        .sidebar-widget ul li:last-child { border-bottom: none; }
        .widget-info li { display: flex; justify-content: space-between; align-items: center; }
        .widget-info li span { color: var(--text-muted); font-size: .88rem; }
        .widget-info li a { color: var(--primary); font-weight: 700; }
        .sidebar-links a {
            color: var(--text);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1.5;
        }
        .sidebar-links a::before {
            content: "›";
            color: var(--accent);
            font-weight: 800;
            font-size: 1.1rem;
        }
        .sidebar-links a:hover { color: var(--primary); }
        .widget-tip {
            background: linear-gradient(135deg, #fdf8ef, #fff);
            text-align: center;
        }
        .widget-tip i { color: var(--accent); font-size: 2rem; margin-bottom: 10px; }
        .widget-tip p { margin: 0; color: var(--text-muted); font-size: .92rem; }
        .widget-cta-side { text-align: center; }
        .cta-side-icon { font-size: 2.2rem; color: var(--accent); margin-bottom: 10px; }
        .widget-cta-side h3 { justify-content: center; }
        .widget-cta-side p { font-size: .92rem; color: var(--text-muted); margin-bottom: 16px; }

        /* ========== 未找到 ========== */
        .not-found-box { text-align: center; padding: 50px 20px; }
        .not-found-box i { font-size: 3rem; color: var(--accent); margin-bottom: 15px; }
        .not-found-box h2 { font-size: 1.6rem; color: var(--primary-dark); margin-bottom: 12px; font-weight: 800; }
        .not-found-box p { color: var(--text-muted); margin-bottom: 22px; }

        /* ========== 相关推荐 ========== */
        .related-section {
            padding: 70px 0;
            background: var(--white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-head { text-align: center; margin-bottom: 40px; }
        .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 8px;
            letter-spacing: 1px;
        }
        .section-head p { color: var(--text-muted); font-size: 1.05rem; margin: 0; }
        .related-card {
            display: block;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(22, 51, 122, .2);
        }
        .related-card .card-img { overflow: hidden; height: 190px; }
        .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-body { padding: 20px; }
        .related-card .card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.45;
        }
        .related-card .card-body p {
            color: var(--text-muted);
            font-size: .92rem;
            margin: 0 0 8px;
            line-height: 1.6;
        }
        .related-card .card-link {
            color: var(--primary);
            font-weight: 700;
            font-size: .9rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition);
        }
        .related-card:hover .card-link { color: var(--accent); gap: 8px; }

        /* ========== FAQ ========== */
        .faq-section { padding: 70px 0; }
        .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;
            color: var(--text);
            background: var(--white);
            padding: 18px 22px;
            font-size: 1rem;
        }
        .accordion-button:not(.collapsed) {
            color: var(--primary-dark) !important;
            background: #f6f8fd !important;
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: none;
            border-color: var(--border);
        }
        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2316337a'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
        }
        .accordion-body { color: var(--text-muted); padding: 18px 22px 22px; line-height: 1.8; }

        /* ========== CTA ========== */
        .cta-section { padding: 0 0 70px; background: var(--white); }
        .cta-box {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-2));
            border-radius: 24px;
            padding: 52px 42px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .cta-box::before {
            content: "";
            position: absolute;
            top: -50px;
            right: -50px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(212, 162, 78, .18);
        }
        .cta-box::after {
            content: "";
            position: absolute;
            bottom: -60px;
            left: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
        }
        .cta-box h2 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }
        .cta-box p {
            color: rgba(255, 255, 255, .85);
            max-width: 640px;
            margin: 0 auto 26px;
            position: relative;
            z-index: 1;
        }
        .cta-box .btn-light {
            border-radius: 50px;
            padding: 12px 34px;
            font-weight: 700;
            color: var(--primary-dark);
            border: none;
            box-shadow: 0 8px 20px rgba(0, 0, 0, .15);
            transition: var(--transition);
            position: relative;
            z-index: 1;
            white-space: nowrap;
        }
        .cta-box .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, .22);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0b1a3a;
            color: rgba(255, 255, 255, .75);
            padding: 55px 0 20px;
            border-top: 4px solid var(--accent);
        }
        .footer-widget { margin-bottom: 30px; }
        .footer-brand {
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-brand i { color: var(--accent); }
        .footer-desc {
            font-size: .95rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, .65);
            max-width: 320px;
        }
        .footer-heading {
            font-size: 1rem;
            color: #fff;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: .5px;
        }
        .footer-links a { color: rgba(255, 255, 255, .65); }
        .footer-links a:hover {
            color: var(--accent-2);
            padding-left: 5px;
        }
        .footer-links li { padding: 5px 0; font-size: .92rem; }
        .footer-links li i { color: var(--accent); margin-right: 6px; }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding-top: 20px;
            margin-top: 20px;
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: .9rem;
            color: rgba(255, 255, 255, .5);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: #fff;
                border-radius: 12px;
                padding: 16px;
                margin-top: 12px;
                box-shadow: var(--shadow-md);
                border: 1px solid var(--border);
            }
            .btn-cta-nav {
                margin-top: 12px;
                width: 100%;
            }
            .page-banner { padding: 70px 0 95px; }
            .article-main { margin-top: -30px; padding: 30px; }
        }

        @media (max-width: 768px) {
            .page-banner { padding: 60px 0 70px; }
            .page-banner h1 { font-size: 1.6rem; }
            .article-main { margin-top: 0; padding: 24px; }
            .article-section { padding-bottom: 50px; }
            .section-head h2 { font-size: 1.5rem; }
            .related-section,
            .faq-section { padding: 50px 0; }
            .cta-section { padding-bottom: 50px; }
            .cta-box { padding: 36px 22px; }
            .cta-box h2 { font-size: 1.4rem; }
            .footer-bottom { flex-direction: column; text-align: center; gap: 4px; }
        }

        @media (max-width: 520px) {
            .navbar-brand { font-size: 1.05rem; gap: 7px; }
            .navbar-brand i { font-size: 1.2rem; }
            .article-meta { gap: 10px; }
            .meta-item { font-size: .83rem; padding: 5px 12px; }
            .post-nav { flex-direction: column; }
            .post-nav-link { justify-content: center; }
            .related-card .card-img { height: 170px; }
            .footer-brand { font-size: 1.15rem; }
        }