/* roulang page: index */
:root{
            --primary:#0f1f3d;--primary-light:#1b3356;--accent:#f0b429;--accent-hover:#d19a1e;
            --bg-dark:#0a1428;--bg-sections:#f4f6fa;--bg-light:#ffffff;
            --text-main:#1a2b4a;--text-muted:#5c6b84;--border-light:#e2e8f0;
            --radius:16px;--radius-sm:10px;
            --shadow:0 8px 30px rgba(10,20,40,.08);--shadow-hover:0 12px 40px rgba(10,20,40,.15);
            --transition:.3s ease;
        }
        *,*::before,*::after{box-sizing:border-box}
        body{
            margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
            font-size:16px;line-height:1.7;color:var(--text-main);background:var(--bg-light);
        }
        a{text-decoration:none;color:var(--primary);transition:color .2s}
        a:hover{color:var(--accent-hover)}
        img{max-width:100%;height:auto;display:block}
        .container-custom{max-width:1200px;margin:0 auto;padding:0 24px}

        /* ===== 导航 ===== */
        .site-header{
            background:var(--bg-dark);backdrop-filter:blur(8px);
            border-bottom:1px solid rgba(255,255,255,.08);position:sticky;top:0;z-index:1000;
        }
        .site-header .navbar{padding:0;min-height:72px}
        .site-header .navbar-brand{color:#fff;font-size:1.5rem;font-weight:700;letter-spacing:.02em;display:flex;align-items:center;gap:10px}
        .site-header .navbar-brand .logo-icon{
            width:38px;height:38px;background:var(--accent);border-radius:8px;
            display:flex;align-items:center;justify-content:center;color:var(--primary);
            font-size:1.1rem;font-weight:800;
        }
        .site-header .nav-link{color:rgba(255,255,255,.75);font-weight:500;padding:10px 18px!important;position:relative;transition:color var(--transition)}
        .site-header .nav-link:hover{color:#fff}
        .site-header .nav-link.active{color:#fff;font-weight:600}
        .site-header .nav-link.active::after{
            content:"";position:absolute;bottom:2px;left:18px;right:18px;
            height:2px;background:var(--accent);border-radius:2px;
        }
        .navbar-toggler{border-color:rgba(255,255,255,.3);color:#fff}
        .navbar-toggler:focus{box-shadow:0 0 0 3px rgba(240,180,41,.3)}

        /* ===== Hero ===== */
        .hero{
            background:linear-gradient(135deg,rgba(10,20,40,.92),rgba(15,31,61,.85)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color:#fff;padding:140px 0 100px;position:relative;overflow:hidden;
        }
        .hero::after{
            content:"";position:absolute;bottom:-40px;left:0;right:0;height:100px;
            background:linear-gradient(to top,#fff,transparent);opacity:.06;
        }
        .hero-badge{
            display:inline-flex;align-items:center;gap:8px;background:rgba(240,180,41,.15);
            border:1px solid rgba(240,180,41,.4);color:var(--accent);padding:6px 16px;
            border-radius:50px;font-size:.85rem;font-weight:500;margin-bottom:24px;
        }
        .hero h1{font-size:3.2rem;font-weight:800;line-height:1.2;margin-bottom:8px;letter-spacing:.01em}
        .hero .lead{font-size:1.2rem;max-width:640px;color:rgba(255,255,255,.85);margin-bottom:32px}
        .hero-actions{display:flex;gap:16px;flex-wrap:wrap}
        .btn-custom-primary{
            background:var(--accent);color:var(--primary);font-weight:600;border:none;
            padding:12px 32px;border-radius:8px;transition:all var(--transition);
            box-shadow:0 4px 20px rgba(240,180,41,.3);display:inline-flex;align-items:center;justify-content:center;
        }
        .btn-custom-primary:hover{
            background:var(--accent-hover);color:#fff;transform:translateY(-2px);
            box-shadow:0 8px 30px rgba(240,180,41,.4);
        }
        .btn-custom-outline{
            background:transparent;color:#fff;border:1px solid rgba(255,255,255,.5);
            padding:12px 32px;border-radius:8px;font-weight:500;transition:all var(--transition);
            display:inline-flex;align-items:center;justify-content:center;
        }
        .btn-custom-outline:hover{
            background:rgba(255,255,255,.1);color:var(--accent);border-color:var(--accent);transform:translateY(-2px);
        }

        /* ===== 统计 ===== */
        .stats-section{background:var(--bg-dark);color:#fff;padding:60px 0;border-top:1px solid rgba(255,255,255,.08);border-bottom:1px solid rgba(255,255,255,.08)}
        .stats-section .stat-number{font-size:2.6rem;font-weight:800;color:var(--accent);line-height:1.2}
        .stats-section .stat-label{color:rgba(255,255,255,.7);font-size:.95rem;margin-top:4px}

        /* ===== 板块 ===== */
        .section{padding:90px 0}
        .section-label{
            display:inline-flex;align-items:center;gap:8px;color:var(--accent-hover);
            font-size:.85rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-bottom:12px;
        }
        .section-title{font-size:2.2rem;font-weight:800;margin-bottom:16px;color:var(--text-main);line-height:1.3}
        .section-desc{color:var(--text-muted);max-width:700px;margin-bottom:48px;font-size:1.05rem}

        /* ===== 分类卡片 ===== */
        .category-card{
            border:1px solid var(--border-light);border-radius:var(--radius);padding:32px 28px;
            height:100%;transition:all var(--transition);background:var(--bg-light);position:relative;overflow:hidden;
        }
        .category-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:rgba(240,180,41,.5)}
        .category-card .category-icon{
            width:52px;height:52px;background:rgba(240,180,41,.12);border-radius:10px;
            display:flex;align-items:center;justify-content:center;color:var(--accent-hover);font-size:1.3rem;margin-bottom:20px;
        }
        .category-card h3{font-size:1.2rem;font-weight:700;margin-bottom:10px}
        .category-card p{color:var(--text-muted);font-size:.95rem;margin-bottom:16px}
        .category-card .category-link{color:var(--primary);font-weight:600;font-size:.95rem;display:inline-flex;align-items:center;gap:6px}
        .category-card .category-link i{transition:transform var(--transition)}
        .category-card:hover .category-link i{transform:translateX(4px)}

        /* ===== 资讯列表 ===== */
        .news-section{background:var(--bg-sections)}
        .news-card{
            background:var(--bg-light);border:1px solid var(--border-light);border-radius:var(--radius-sm);
            padding:24px;transition:all var(--transition);height:100%;
        }
        .news-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
        .news-meta{font-size:.82rem;color:var(--text-muted);display:flex;gap:16px;margin-bottom:10px}
        .news-meta .badge-custom{background:rgba(240,180,41,.15);color:var(--accent-hover);padding:2px 10px;border-radius:20px;font-weight:500;font-size:.78rem}
        .news-card h3{font-size:1.05rem;font-weight:700;margin-bottom:8px;line-height:1.4}
        .news-card h3 a{color:var(--text-main)}
        .news-card h3 a:hover{color:var(--accent-hover)}
        .news-card p{color:var(--text-muted);font-size:.9rem;margin-bottom:0}

        /* ===== 精选内容 ===== */
        .featured-card{
            border-radius:var(--radius);overflow:hidden;border:1px solid var(--border-light);
            background:var(--bg-light);transition:all var(--transition);height:100%;
        }
        .featured-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-5px)}
        .featured-card .featured-img{height:220px;background-size:cover;background-position:center;position:relative}
        .featured-card .featured-overlay{
            position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(10,20,40,.85));
            padding:24px 20px 16px;color:#fff;
        }
        .featured-card .featured-overlay .tag{
            background:var(--accent);color:var(--primary);font-weight:600;padding:2px 10px;
            border-radius:4px;font-size:.75rem;margin-bottom:8px;display:inline-block;
        }
        .featured-card .featured-overlay h3{font-size:1rem;margin:0}
        .featured-card .featured-body{padding:24px}
        .featured-card .featured-body h3{font-size:1.15rem;font-weight:700;margin-bottom:10px}
        .featured-card .featured-body p{color:var(--text-muted);font-size:.95rem}

        /* ===== 流程 ===== */
        .process-section{background:var(--bg-dark);color:#fff}
        .process-section .section-title{color:#fff}
        .process-section .section-desc{color:rgba(255,255,255,.7)}
        .process-step{
            position:relative;padding:24px;border-radius:var(--radius-sm);
            background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);height:100%;transition:all var(--transition);
        }
        .process-step:hover{background:rgba(255,255,255,.08);transform:translateY(-4px)}
        .process-step .step-number{font-size:2.4rem;font-weight:800;color:var(--accent);opacity:.8;margin-bottom:12px;line-height:1}
        .process-step h3{font-size:1.1rem;font-weight:600;margin-bottom:8px}
        .process-step p{color:rgba(255,255,255,.7);font-size:.9rem;margin-bottom:0}

        /* ===== FAQ ===== */
        .faq-item{
            border:1px solid var(--border-light);border-radius:var(--radius-sm);background:var(--bg-light);
            padding:24px;margin-bottom:16px;transition:all var(--transition);
        }
        .faq-item:hover{border-color:rgba(240,180,41,.4);box-shadow:var(--shadow)}
        .faq-item h3{font-size:1.05rem;font-weight:600;margin-bottom:8px;color:var(--text-main)}
        .faq-item p{color:var(--text-muted);font-size:.95rem;margin-bottom:0}

        /* ===== CTA ===== */
        .cta-section{
            background:linear-gradient(135deg,var(--primary),var(--primary-light)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            background-blend-mode:overlay;color:#fff;padding:100px 0;text-align:center;
        }
        .cta-section h2{font-size:2.2rem;font-weight:800;margin-bottom:16px}
        .cta-section p{color:rgba(255,255,255,.85);max-width:600px;margin:0 auto 32px}

        /* ===== 页脚 ===== */
        .site-footer{background:#081120;color:rgba(255,255,255,.7);padding:70px 0 30px}
        .site-footer h4{color:#fff;font-size:1.1rem;margin-bottom:20px;font-weight:600}
        .site-footer .footer-brand{font-size:1.4rem;font-weight:700;color:#fff;margin-bottom:12px}
        .site-footer a{color:rgba(255,255,255,.6);transition:color var(--transition)}
        .site-footer a:hover{color:var(--accent)}
        .site-footer ul{list-style:none;padding:0;margin:0}
        .site-footer ul li{margin-bottom:8px;font-size:.95rem}
        .footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;margin-top:48px;font-size:.85rem;color:rgba(255,255,255,.4)}

        /* ===== 响应式 ===== */
        @media (max-width:991px){
            .site-header .navbar{min-height:64px}
            .navbar-collapse{background:var(--bg-dark);padding:16px;border-radius:12px;margin-top:8px}
            .site-header .nav-link.active::after{display:none}
            .site-header .nav-link.active{color:var(--accent)}
            .hero{padding:100px 0 70px}
            .hero h1{font-size:2.4rem}
            .section{padding:60px 0}
        }
        @media (max-width:767px){
            .hero h1{font-size:1.9rem}
            .hero-badge{font-size:.8rem}
            .section-title{font-size:1.7rem}
            .stats-section .stat-number{font-size:2rem}
            .btn-custom-primary,.btn-custom-outline{padding:10px 20px;font-size:.95rem}
            .featured-card .featured-img{height:180px}
        }
        @media (max-width:520px){
            .container-custom{padding:0 16px}
            .hero{padding:80px 0 50px}
            .hero h1{font-size:1.6rem}
            .hero .lead{font-size:1rem}
            .hero-actions{flex-direction:column;align-items:stretch}
            .btn-custom-primary,.btn-custom-outline{text-align:center;width:100%}
        }

/* roulang page: article */
:root{
    --primary:#101826;
    --primary-soft:#1c2842;
    --primary-deep:#0a101d;
    --accent:#d4a652;
    --accent-light:#e8c47a;
    --accent-soft:#f6ecd8;
    --bg:#f4f6f9;
    --white:#ffffff;
    --text:#273044;
    --text-muted:#7a8699;
    --border:#e5e9f0;
    --radius:16px;
    --radius-sm:10px;
    --shadow:0 14px 40px rgba(16,24,38,.08);
    --shadow-lg:0 24px 60px rgba(16,24,38,.16);
    --font-base:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    font-family:var(--font-base);
    background:var(--bg);
    color:var(--text);
    line-height:1.75;
    font-size:16px;
    -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:color .25s ease}
a:hover{color:var(--accent)}
button,input,textarea{font-family:inherit}
.container-custom{
    width:100%;
    max-width:1280px;
    margin:0 auto;
    padding:0 24px;
}
/* ===== Header / 导航 ===== */
.site-header{
    background:rgba(255,255,255,.92);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--border);
    position:sticky;
    top:0;
    z-index:1000;
    transition:box-shadow .3s ease;
}
.site-header.scrolled{
    box-shadow:var(--shadow);
}
.navbar{
    padding:16px 0;
}
.navbar-brand{
    font-size:1.35rem;
    font-weight:800;
    color:var(--primary) !important;
    letter-spacing:.5px;
    display:flex;
    align-items:center;
    gap:10px;
}
.logo-icon{
    width:40px;
    height:40px;
    border-radius:10px;
    background:linear-gradient(135deg,var(--accent),#c48a32);
    color:#fff;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:1.15rem;
    font-weight:800;
    box-shadow:0 6px 18px rgba(212,166,82,.35);
    flex-shrink:0;
}
.navbar-nav{
    gap:4px;
}
.navbar-nav .nav-link{
    font-size:.98rem;
    font-weight:600;
    color:var(--text) !important;
    padding:10px 16px !important;
    border-radius:8px;
    position:relative;
    transition:color .25s ease,background .25s ease;
}
.navbar-nav .nav-link:hover{
    color:var(--accent) !important;
    background:rgba(212,166,82,.08);
}
.navbar-nav .nav-link.active{
    color:var(--primary) !important;
}
.navbar-nav .nav-link.active::after{
    content:"";
    position:absolute;
    left:16px;
    right:16px;
    bottom:6px;
    height:2px;
    border-radius:2px;
    background:var(--accent);
}
.navbar-toggler{
    border:1px solid var(--border);
    border-radius:10px;
    padding:8px 12px;
    font-size:1.2rem;
    color:var(--primary);
    box-shadow:none !important;
}
.navbar-toggler:focus{
    outline:none;
    border-color:var(--accent);
}
/* ===== 文章 Banner ===== */
.article-hero{
    background:linear-gradient(135deg,rgba(10,16,29,.92),rgba(28,36,66,.8)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    padding:80px 0 60px;
    color:#fff;
    position:relative;
    border-bottom:3px solid var(--accent);
}
.breadcrumb-wrap{
    display:flex;
    align-items:center;
    gap:10px;
    font-size:.92rem;
    color:rgba(255,255,255,.75);
    margin-bottom:28px;
    flex-wrap:wrap;
}
.breadcrumb-wrap a{
    color:rgba(255,255,255,.85);
    transition:color .2s ease;
}
.breadcrumb-wrap a:hover{
    color:var(--accent-light);
}
.breadcrumb-wrap .current{
    color:var(--accent-light);
    max-width:400px;
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
}
.breadcrumb-wrap i{
    font-size:.7rem;
    color:rgba(255,255,255,.5);
}
.article-hero-content h1{
    font-size:2.4rem;
    font-weight:800;
    line-height:1.35;
    max-width:860px;
    margin-bottom:20px;
    letter-spacing:.5px;
    text-shadow:0 4px 20px rgba(0,0,0,.3);
}
.article-meta{
    display:flex;
    align-items:center;
    gap:18px;
    flex-wrap:wrap;
}
.meta-badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    background:var(--accent);
    color:#fff;
    padding:5px 14px;
    border-radius:30px;
    font-size:.82rem;
    font-weight:600;
}
.meta-item{
    font-size:.88rem;
    color:rgba(255,255,255,.8);
    display:inline-flex;
    align-items:center;
    gap:6px;
}
/* ===== 文章主体 ===== */
.article-body{
    padding:60px 0;
}
.article-card{
    background:var(--white);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
    padding:40px 48px;
    border:1px solid rgba(229,233,240,.6);
}
.article-head{
    display:flex;
    justify-content:space-between;
    align-items:center;
    flex-wrap:wrap;
    gap:12px;
    margin-bottom:28px;
    padding-bottom:22px;
    border-bottom:1px solid var(--border);
}
.cate-label{
    display:inline-block;
    background:var(--accent-soft);
    color:#a8812e;
    font-size:.85rem;
    font-weight:700;
    padding:6px 16px;
    border-radius:30px;
    letter-spacing:.3px;
}
.article-tools{
    display:flex;
    gap:16px;
    color:var(--text-muted);
    font-size:.86rem;
}
.article-tools span{
    display:inline-flex;
    align-items:center;
    gap:6px;
}
.article-content{
    color:#344054;
    font-size:1.05rem;
    line-height:1.95;
}
.article-content p{
    margin-bottom:22px;
}
.article-content h2{
    font-size:1.55rem;
    font-weight:800;
    color:var(--primary);
    margin:42px 0 18px;
    padding-left:14px;
    border-left:4px solid var(--accent);
    line-height:1.4;
}
.article-content h3{
    font-size:1.25rem;
    font-weight:700;
    color:var(--primary);
    margin:32px 0 14px;
}
.article-content ul,.article-content ol{
    margin:0 0 24px 24px;
}
.article-content li{
    margin-bottom:8px;
}
.article-content img{
    border-radius:12px;
    margin:26px 0;
    box-shadow:var(--shadow);
}
.article-content blockquote{
    border-left:4px solid var(--accent);
    background:var(--accent-soft);
    padding:20px 24px;
    border-radius:0 10px 10px 0;
    margin:28px 0;
    color:var(--primary-soft);
    font-style:italic;
}
.article-content a{
    color:#b07b2d;
    font-weight:600;
    border-bottom:1px solid rgba(212,166,82,.4);
}
.article-content table{
    width:100%;
    border-collapse:collapse;
    margin:28px 0;
}
.article-content th,.article-content td{
    border:1px solid var(--border);
    padding:12px 16px;
    text-align:left;
}
.article-content th{
    background:var(--primary);
    color:#fff;
    font-weight:600;
}
.article-tags{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:36px;
    padding-top:26px;
    border-top:1px solid var(--border);
}
.tag-item{
    display:inline-block;
    background:var(--bg);
    border:1px solid var(--border);
    color:var(--text-muted);
    font-size:.82rem;
    padding:6px 14px;
    border-radius:30px;
    transition:all .25s ease;
}
.tag-item:hover{
    border-color:var(--accent);
    color:var(--accent);
    background:var(--accent-soft);
}
/* ===== 未找到 ===== */
.not-found{
    text-align:center;
    padding:70px 20px;
}
.not-found i{
    font-size:3.5rem;
    color:var(--accent);
    margin-bottom:24px;
    display:inline-block;
}
.not-found h2{
    font-size:1.6rem;
    font-weight:800;
    color:var(--primary);
    margin-bottom:12px;
}
.not-found p{
    color:var(--text-muted);
    margin-bottom:30px;
}
/* ===== 侧边栏 ===== */
.side-card{
    background:var(--white);
    border-radius:var(--radius);
    padding:28px;
    border:1px solid rgba(229,233,240,.6);
    box-shadow:0 8px 28px rgba(16,24,38,.05);
    margin-bottom:24px;
}
.side-card h3{
    font-size:1.05rem;
    font-weight:800;
    color:var(--primary);
    margin-bottom:20px;
    padding-left:12px;
    border-left:3px solid var(--accent);
    line-height:1.4;
}
.side-links{
    display:flex;
    flex-direction:column;
    gap:2px;
}
.side-links a{
    display:flex;
    align-items:center;
    gap:10px;
    padding:10px 12px;
    border-radius:8px;
    font-size:.95rem;
    color:var(--text);
    transition:all .25s ease;
}
.side-links a i{
    color:var(--accent);
    font-size:.85rem;
    width:18px;
    text-align:center;
}
.side-links a:hover{
    background:var(--accent-soft);
    color:var(--accent);
    transform:translateX(4px);
}
.side-list{
    list-style:none;
    padding:0;
    margin:0;
}
.side-list li{
    padding:14px 0;
    border-bottom:1px dashed var(--border);
}
.side-list li:last-child{
    border-bottom:none;
}
.side-list a{
    display:block;
    font-size:.92rem;
    line-height:1.55;
    color:var(--text);
    transition:color .2s ease;
}
.side-list a:hover{
    color:var(--accent);
}
.side-list .date{
    font-size:.8rem;
    color:var(--text-muted);
    display:block;
    margin-top:4px;
}
.side-cta{
    background:linear-gradient(135deg,var(--primary),var(--primary-soft));
    color:#fff;
    border-radius:var(--radius);
    padding:30px 26px;
    text-align:center;
}
.side-cta h4{
    font-size:1.1rem;
    font-weight:700;
    margin-bottom:10px;
}
.side-cta p{
    font-size:.88rem;
    color:rgba(255,255,255,.75);
    margin-bottom:20px;
    line-height:1.7;
}
/* ===== 按钮 ===== */
.btn{
    border-radius:50px;
    padding:12px 30px;
    font-weight:600;
    letter-spacing:.4px;
    transition:all .3s ease;
    border:2px solid transparent;
}
.btn-primary{
    background:var(--accent);
    color:#fff;
    border-color:var(--accent);
}
.btn-primary:hover{
    background:var(--accent-light);
    border-color:var(--accent-light);
    color:#fff;
    transform:translateY(-2px);
    box-shadow:0 10px 28px rgba(212,166,82,.35);
}
.btn-outline-light{
    border-color:rgba(255,255,255,.6);
    color:#fff;
    background:transparent;
}
.btn-outline-light:hover{
    background:#fff;
    color:var(--primary);
    transform:translateY(-2px);
    box-shadow:0 10px 30px rgba(255,255,255,.15);
}
/* ===== 相关推荐 ===== */
.related-section{
    background:var(--white);
    padding:70px 0;
    border-top:1px solid var(--border);
}
.section-title{
    text-align:center;
    margin-bottom:48px;
}
.section-title .sub{
    color:var(--accent);
    font-size:.88rem;
    font-weight:700;
    letter-spacing:2px;
    text-transform:uppercase;
    display:block;
    margin-bottom:8px;
}
.section-title h2{
    font-size:2rem;
    font-weight:800;
    color:var(--primary);
    margin-bottom:12px;
}
.section-title p{
    color:var(--text-muted);
    max-width:600px;
    margin:0 auto;
    font-size:.98rem;
}
.related-card{
    border:1px solid var(--border);
    border-radius:var(--radius);
    overflow:hidden;
    background:var(--white);
    transition:all .35s ease;
    height:100%;
    display:flex;
    flex-direction:column;
}
.related-card:hover{
    transform:translateY(-8px);
    box-shadow:var(--shadow-lg);
    border-color:rgba(212,166,82,.35);
}
.related-card .thumb{
    position:relative;
    overflow:hidden;
    aspect-ratio:16/10;
}
.related-card .thumb img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform .5s ease;
}
.related-card:hover .thumb img{
    transform:scale(1.06);
}
.related-card .thumb .tag{
    position:absolute;
    top:14px;
    left:14px;
    background:rgba(16,24,38,.85);
    color:var(--accent-light);
    font-size:.78rem;
    font-weight:600;
    padding:5px 14px;
    border-radius:30px;
    backdrop-filter:blur(6px);
    z-index:2;
}
.related-card .body{
    padding:22px 24px 26px;
    display:flex;
    flex-direction:column;
    flex:1;
}
.related-card h3{
    font-size:1.08rem;
    font-weight:700;
    color:var(--primary);
    line-height:1.5;
    margin-bottom:10px;
}
.related-card h3 a:hover{
    color:var(--accent);
}
.related-card p{
    font-size:.9rem;
    color:var(--text-muted);
    line-height:1.7;
    flex:1;
    margin-bottom:12px;
}
.related-card .meta-line{
    font-size:.8rem;
    color:var(--text-muted);
    display:flex;
    align-items:center;
    gap:8px;
}
/* ===== CTA ===== */
.cta-section{
    background:linear-gradient(135deg,rgba(10,16,29,.9),rgba(28,36,66,.85)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    padding:80px 0;
    color:#fff;
    text-align:center;
    position:relative;
}
.cta-section h2{
    font-size:2rem;
    font-weight:800;
    margin-bottom:16px;
}
.cta-section p{
    max-width:640px;
    margin:0 auto 34px;
    color:rgba(255,255,255,.8);
    font-size:1.02rem;
}
.cta-btns{
    display:flex;
    gap:16px;
    justify-content:center;
    flex-wrap:wrap;
}
/* ===== 页脚 ===== */
.site-footer{
    background:var(--primary-deep);
    color:rgba(255,255,255,.85);
    padding:70px 0 0;
}
.site-footer .footer-brand{
    font-size:1.35rem;
    font-weight:800;
    color:#fff;
    margin-bottom:14px;
    display:flex;
    align-items:center;
    gap:10px;
}
.site-footer .footer-brand::before{
    content:"华";
    width:36px;
    height:36px;
    border-radius:9px;
    background:var(--accent);
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:1rem;
    font-weight:800;
    color:#fff;
    flex-shrink:0;
}
.site-footer h4{
    font-size:1rem;
    font-weight:700;
    color:#fff;
    margin-bottom:18px;
    padding-bottom:12px;
    border-bottom:1px solid rgba(255,255,255,.1);
}
.site-footer ul{
    list-style:none;
    padding:0;
    margin:0;
}
.site-footer ul li{
    margin-bottom:12px;
}
.site-footer ul a{
    color:rgba(255,255,255,.7);
    font-size:.92rem;
    transition:color .25s ease,padding-left .25s ease;
}
.site-footer ul a:hover{
    color:var(--accent-light);
    padding-left:4px;
}
.site-footer .social-links{
    display:flex;
    gap:12px;
    margin-top:16px;
}
.site-footer .social-links a{
    width:40px;
    height:40px;
    border-radius:10px;
    background:rgba(255,255,255,.08);
    display:flex;
    align-items:center;
    justify-content:center;
    color:rgba(255,255,255,.8);
    transition:all .3s ease;
}
.site-footer .social-links a:hover{
    background:var(--accent);
    color:#fff;
    transform:translateY(-3px);
}
.footer-bottom{
    border-top:1px solid rgba(255,255,255,.08);
    padding:24px 0;
    margin-top:50px;
    font-size:.88rem;
    color:rgba(255,255,255,.55);
}
.footer-bottom a{
    color:rgba(255,255,255,.6);
}
.footer-bottom a:hover{
    color:var(--accent-light);
}
/* ===== 响应式 ===== */
@media (max-width: 1024px){
    .article-hero-content h1{font-size:2rem}
    .article-card{padding:32px}
    .section-title h2{font-size:1.7rem}
}
@media (max-width: 768px){
    .article-hero{padding:60px 0 50px}
    .article-hero-content h1{font-size:1.65rem}
    .article-card{padding:24px 22px}
    .article-content{font-size:.98rem}
    .related-section{padding:50px 0}
    .site-footer{padding-top:50px}
    .cta-section{padding:60px 0}
    .cta-section h2{font-size:1.6rem}
    .navbar-nav{
        padding:12px 0 4px;
    }
    .navbar-nav .nav-link{
        padding:10px 12px !important;
    }
}
@media (max-width: 520px){
    .container-custom{padding:0 16px}
    .article-hero-content h1{font-size:1.4rem}
    .article-meta{gap:12px}
    .meta-item{font-size:.8rem}
    .article-card{padding:20px 18px;border-radius:12px}
    .section-title h2{font-size:1.4rem}
    .footer-bottom .d-flex{
        flex-direction:column;
        align-items:center;
        text-align:center;
        gap:8px;
    }
    .cta-btns{flex-direction:column;align-items:center}
    .cta-btns .btn{width:100%;max-width:280px}
}
/* 滚动状态 */

/* roulang page: category1 */
:root {
            --primary: #0c1222;
            --primary-light: #1a2338;
            --primary-dark: #070b14;
            --accent: #c9a14f;
            --accent-dark: #a9853a;
            --accent-light: #f0dcb8;
            --bg-light: #f7f5f1;
            --bg-white: #ffffff;
            --text-main: #1c2333;
            --text-body: #4a5568;
            --text-muted: #8a94a6;
            --border: #e8e4dd;
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(12, 18, 34, .06);
            --shadow-md: 0 6px 24px rgba(12, 18, 34, .10);
            --shadow-lg: 0 18px 50px rgba(12, 18, 34, .16);
            --section-pad: 88px;
            --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            color: var(--text-body);
            background: var(--bg-light);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .25s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .site-header {
            background: rgba(255, 255, 255, .96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 14px 0;
            transition: box-shadow .3s ease, background .3s ease;
        }
        .site-header.scrolled {
            background: #fff;
            box-shadow: 0 4px 20px rgba(12, 18, 34, .06);
        }
        .navbar {
            padding: 0;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: .5px;
            line-height: 1.2;
        }
        .navbar-brand:hover {
            color: var(--text-main);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
        }
        .navbar-nav {
            gap: 6px;
        }
        .nav-link {
            font-size: .95rem;
            font-weight: 500;
            color: var(--text-body);
            padding: 8px 16px !important;
            border-radius: 8px;
            position: relative;
            transition: color .3s ease, background .3s ease;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(12, 18, 34, .04);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .navbar-toggler {
            border: none;
            font-size: 1.3rem;
            color: var(--primary);
            padding: 4px 8px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }
        .page-hero {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 130px 0 110px;
            color: #fff;
        }
        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(7, 11, 20, .88) 20%, rgba(12, 18, 34, .65) 60%, rgba(12, 18, 34, .35));
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .breadcrumb-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: .85rem;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 32px;
            padding: 6px 16px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 30px;
        }
        .breadcrumb-custom a {
            color: rgba(255, 255, 255, .85);
            transition: color .3s;
        }
        .breadcrumb-custom a:hover {
            color: var(--accent);
        }
        .page-hero h1 {
            font-size: clamp(2rem, 4vw, 3.2rem);
            font-weight: 800;
            letter-spacing: 1px;
            line-height: 1.25;
            margin-bottom: 20px;
            color: #fff;
        }
        .page-hero p.lead {
            font-size: 1.08rem;
            max-width: 640px;
            color: rgba(255, 255, 255, .85);
            line-height: 1.8;
            margin-bottom: 36px;
        }
        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 600;
            font-size: .95rem;
            padding: 12px 28px;
            border-radius: 50px;
            border: 1px solid transparent;
            transition: all .3s ease;
            box-shadow: 0 4px 16px rgba(201, 161, 79, .35);
        }
        .btn-brand:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(201, 161, 79, .45);
        }
        .btn-outline-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            border: 1px solid rgba(255, 255, 255, .6);
            color: #fff;
            font-weight: 500;
            font-size: .95rem;
            padding: 12px 28px;
            border-radius: 50px;
            background: transparent;
            transition: all .3s ease;
        }
        .btn-outline-light-custom:hover {
            background: rgba(255, 255, 255, .1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .stats-strip {
            background: var(--primary);
            padding: 36px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .05);
        }
        .stat-item {
            text-align: center;
            padding: 10px 0;
        }
        .stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            font-family: "DIN Alternate", var(--font-main);
        }
        .stat-label {
            font-size: .88rem;
            color: rgba(255, 255, 255, .7);
            margin-top: 4px;
            letter-spacing: 1px;
        }
        .section-common {
            padding: var(--section-pad) 0;
        }
        .section-light {
            background: var(--bg-light);
        }
        .section-white {
            background: var(--bg-white);
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 52px;
        }
        .section-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent-dark);
            font-size: .78rem;
            font-weight: 600;
            letter-spacing: 1px;
            padding: 6px 18px;
            border-radius: 30px;
            margin-bottom: 14px;
        }
        .section-head h2 {
            font-size: clamp(1.6rem, 3vw, 2.3rem);
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 14px;
            letter-spacing: .5px;
        }
        .section-head p {
            color: var(--text-muted);
            font-size: .98rem;
            line-height: 1.8;
        }
        .news-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all .35s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .news-thumb {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #eee;
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .news-card:hover .news-thumb img {
            transform: scale(1.05);
        }
        .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(12, 18, 34, .82);
            color: var(--accent);
            font-size: .75rem;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 30px;
            backdrop-filter: blur(6px);
        }
        .news-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .news-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.5;
            margin-bottom: 10px;
            transition: color .3s;
        }
        .news-body h3 a:hover {
            color: var(--accent-dark);
        }
        .news-body p {
            font-size: .9rem;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 18px;
            flex-grow: 1;
        }
        .news-meta {
            display: flex;
            gap: 18px;
            font-size: .8rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }
        .news-meta i {
            margin-right: 5px;
        }
        .section-featured {
            background: var(--primary);
            color: #fff;
            position: relative;
            overflow: hidden;
            padding: var(--section-pad) 0;
        }
        .section-featured::before {
            content: "";
            position: absolute;
            top: -120px;
            right: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(201, 161, 79, .15), transparent 70%);
            pointer-events: none;
        }
        .section-featured .section-head h2 {
            color: #fff;
        }
        .section-featured .section-head p {
            color: rgba(255, 255, 255, .7);
        }
        .section-featured .section-tag {
            background: rgba(201, 161, 79, .15);
            color: var(--accent-light);
        }
        .featured-main {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background-size: cover;
            background-position: center;
            min-height: 380px;
            position: relative;
            display: flex;
            align-items: flex-end;
            padding: 32px;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .08);
        }
        .featured-main::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, .78));
        }
        .featured-main-content {
            position: relative;
            z-index: 2;
        }
        .featured-main .f-tag {
            display: inline-block;
            font-size: .75rem;
            background: var(--accent);
            color: var(--primary);
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .featured-main h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .featured-main p {
            font-size: .88rem;
            color: rgba(255, 255, 255, .8);
            margin-bottom: 10px;
        }
        .featured-main .f-time {
            font-size: .8rem;
            color: rgba(255, 255, 255, .65);
        }
        .featured-list-item {
            display: flex;
            gap: 16px;
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius-md);
            padding: 20px;
            margin-bottom: 16px;
            transition: all .3s ease;
        }
        .featured-list-item:hover {
            background: rgba(255, 255, 255, .08);
            transform: translateX(4px);
        }
        .featured-list-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: rgba(201, 161, 79, .15);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .featured-list-body h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
        }
        .featured-list-body p {
            font-size: .82rem;
            color: rgba(255, 255, 255, .6);
            margin: 0;
        }
        .section-timeline {
            background: var(--bg-light);
            padding: var(--section-pad) 0;
        }
        .timeline-list {
            position: relative;
            max-width: 760px;
            margin: 0 auto;
            padding-left: 40px;
        }
        .timeline-list::before {
            content: "";
            position: absolute;
            left: 14px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--accent), rgba(201, 161, 79, .2));
        }
        .timeline-item {
            position: relative;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            margin-bottom: 28px;
            transition: all .3s ease;
        }
        .timeline-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .timeline-item::before {
            content: "";
            position: absolute;
            left: -33px;
            top: 30px;
            width: 12px;
            height: 12px;
            background: var(--accent);
            border: 3px solid var(--bg-light);
            border-radius: 50%;
            box-shadow: 0 0 0 2px var(--accent);
        }
        .timeline-date {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: .82rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .timeline-date i {
            color: var(--accent);
        }
        .timeline-item h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .timeline-item p {
            font-size: .88rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }
        .section-faq {
            background: var(--bg-white);
            padding: var(--section-pad) 0;
        }
        .faq-wrap {
            max-width: 780px;
            margin: 0 auto;
        }
        .accordion-item {
            border: 1px solid var(--border) !important;
            border-radius: var(--radius-md) !important;
            margin-bottom: 16px;
            overflow: hidden;
            background: var(--bg-white);
        }
        .accordion-button {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main) !important;
            padding: 20px 24px;
            background: var(--bg-white) !important;
            box-shadow: none !important;
        }
        .accordion-button:not(.collapsed) {
            color: var(--primary) !important;
            border-bottom: 1px solid var(--border);
        }
        .accordion-button::after {
            color: var(--accent);
        }
        .accordion-body {
            font-size: .92rem;
            color: var(--text-body);
            line-height: 1.8;
            padding: 20px 24px;
        }
        .section-cta {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 100px 0;
            color: #fff;
            text-align: center;
        }
        .section-cta::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(7, 11, 20, .8);
        }
        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: clamp(1.6rem, 3vw, 2.3rem);
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-content p {
            color: rgba(255, 255, 255, .75);
            margin-bottom: 30px;
            line-height: 1.8;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 16px;
        }
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, .8);
            padding: 70px 0 0;
        }
        .footer-brand {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-brand::before {
            content: "华";
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--accent);
            color: var(--primary);
            border-radius: 8px;
            font-weight: 700;
            font-size: 1rem;
        }
        .site-footer h4 {
            font-size: .95rem;
            color: #fff;
            font-weight: 600;
            margin-bottom: 18px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 10px;
        }
        .site-footer ul a {
            color: rgba(255, 255, 255, .65);
            font-size: .9rem;
            transition: color .3s, padding-left .3s;
        }
        .site-footer ul a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            margin-top: 50px;
            padding: 22px 0;
            font-size: .85rem;
            color: rgba(255, 255, 255, .45);
        }
        .footer-social a {
            color: rgba(255, 255, 255, .65);
            margin-right: 14px;
            font-size: 1.1rem;
            transition: color .3s, transform .3s;
            display: inline-block;
        }
        .footer-social a:hover {
            color: var(--accent);
            transform: translateY(-2px);
        }
        @media (max-width: 991px) {
            .navbar-collapse {
                background: #fff;
                border-radius: 12px;
                padding: 16px;
                margin-top: 12px;
                box-shadow: var(--shadow-sm);
                border: 1px solid var(--border);
            }
            .nav-link {
                padding: 12px 14px !important;
                border-radius: 8px;
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-link.active {
                background: var(--accent-light);
                color: var(--primary);
            }
            .page-hero {
                padding: 90px 0 70px;
            }
            .section-common,
            .section-featured,
            .section-timeline,
            .section-faq {
                padding: 60px 0;
            }
        }
        @media (max-width: 767px) {
            .page-hero h1 {
                font-size: 1.7rem;
            }
            .page-hero p.lead {
                font-size: .95rem;
            }
            .hero-actions .btn-brand,
            .hero-actions .btn-outline-light-custom {
                width: 100%;
                justify-content: center;
            }
            .stat-num {
                font-size: 1.6rem;
            }
            .stat-label {
                font-size: .75rem;
            }
            .section-head {
                margin-bottom: 36px;
            }
            .news-body {
                padding: 18px;
            }
            .featured-main {
                min-height: 300px;
                padding: 22px;
            }
            .featured-main h3 {
                font-size: 1.2rem;
            }
            .timeline-list {
                padding-left: 30px;
            }
            .timeline-item {
                padding: 18px 20px;
            }
            .timeline-item::before {
                left: -26px;
                width: 10px;
                height: 10px;
            }
            .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            .cta-actions .btn-brand,
            .cta-actions .btn-outline-light-custom {
                width: 100%;
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .container-custom {
                padding-left: 18px;
                padding-right: 18px;
            }
            .navbar-brand {
                font-size: 1.05rem;
            }
            .section-common,
            .section-featured,
            .section-timeline,
            .section-faq {
                padding: 48px 0;
            }
        }

/* roulang page: category2 */
:root {
        --primary: #1a3a5c;
        --primary-dark: #0f2438;
        --accent: #c8a86e;
        --accent-hover: #b8955a;
        --bg-light: #f7f5f2;
        --bg-white: #ffffff;
        --text-main: #2b2b2b;
        --text-muted: #6b7280;
        --border: #e8e2d9;
        --radius-lg: 20px;
        --radius-md: 14px;
        --radius-sm: 10px;
        --shadow-sm: 0 4px 14px rgba(26, 58, 92, 0.06);
        --shadow-md: 0 10px 30px rgba(26, 58, 92, 0.1);
        --shadow-lg: 0 20px 50px rgba(26, 58, 92, 0.16);
        --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);
        background: var(--bg-white);
        color: var(--text-main);
        line-height: 1.7;
        font-size: 16px;
        -webkit-font-smoothing: antialiased;
    }

    a {
        text-decoration: none;
        color: var(--primary);
        transition: color 0.25s ease;
    }

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

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

    .container-custom {
        max-width: 1280px;
        margin: 0 auto;
        padding: 0 24px;
    }

    .text-accent {
        color: var(--accent) !important;
    }

    .text-muted-2 {
        color: var(--text-muted) !important;
    }

    .bg-light-2 {
        background: var(--bg-light);
    }

    .section-pad {
        padding: 88px 0;
    }

    .section-title-wrapper {
        text-align: center;
        max-width: 760px;
        margin: 0 auto 54px;
    }

    .section-eyebrow {
        display: inline-block;
        font-size: 0.85rem;
        font-weight: 600;
        letter-spacing: 2px;
        text-transform: uppercase;
        color: var(--accent);
        background: rgba(200, 168, 110, 0.12);
        padding: 6px 18px;
        border-radius: 40px;
        margin-bottom: 16px;
    }

    .section-title {
        font-size: 2.15rem;
        font-weight: 700;
        color: var(--primary-dark);
        line-height: 1.3;
        margin-bottom: 14px;
        letter-spacing: -0.02em;
    }

    .section-subtitle {
        font-size: 1.05rem;
        color: var(--text-muted);
        line-height: 1.8;
    }

    /* ===== Header ===== */
    .site-header {
        background: rgba(255, 255, 255, 0.92);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border);
        position: sticky;
        top: 0;
        z-index: 1030;
        padding: 14px 0;
    }

    .navbar-brand {
        display: flex;
        align-items: center;
        font-size: 1.25rem;
        font-weight: 700;
        color: var(--primary-dark) !important;
        letter-spacing: 0.01em;
    }

    .logo-icon {
        width: 40px;
        height: 40px;
        border-radius: 12px;
        background: linear-gradient(145deg, var(--primary), var(--primary-dark));
        color: #fff;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 1.1rem;
        font-weight: 800;
        margin-right: 10px;
        box-shadow: 0 4px 12px rgba(26, 58, 92, 0.3);
    }

    .navbar-nav .nav-link {
        font-size: 0.95rem;
        font-weight: 500;
        padding: 8px 18px;
        border-radius: 30px;
        color: var(--text-main);
        transition: all 0.3s ease;
        position: relative;
        margin: 0 4px;
    }

    .navbar-nav .nav-link:hover,
    .navbar-nav .nav-link:focus {
        color: var(--primary);
        background: rgba(26, 58, 92, 0.06);
    }

    .navbar-nav .nav-link.active {
        color: var(--primary);
        font-weight: 600;
        background: rgba(26, 58, 92, 0.08);
    }

    .navbar-nav .nav-link.active::after {
        content: '';
        position: absolute;
        bottom: 2px;
        left: 50%;
        transform: translateX(-50%);
        width: 20px;
        height: 3px;
        border-radius: 3px;
        background: var(--accent);
    }

    .navbar-toggler {
        border: none;
        padding: 8px 12px;
        color: var(--primary);
        font-size: 1.3rem;
        background: transparent;
    }

    .navbar-toggler:focus {
        box-shadow: none;
        outline: 2px solid var(--accent);
        outline-offset: 2px;
        border-radius: 8px;
    }

    .navbar-collapse {
        flex-grow: 0;
    }

    @media (max-width: 991px) {
        .navbar-collapse {
            background: rgba(255, 255, 255, 0.98);
            border-radius: var(--radius-md);
            padding: 16px 12px;
            margin-top: 12px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
        }
        .navbar-nav .nav-link {
            padding: 10px 16px;
            border-radius: 30px;
        }
        .navbar-nav .nav-link.active::after {
            display: none;
        }
        .navbar-nav .nav-link.active {
            background: rgba(200, 168, 110, 0.15);
        }
        .section-pad {
            padding: 64px 0;
        }
        .section-title {
            font-size: 1.7rem;
        }
        .container-custom {
            padding: 0 20px;
        }
    }

    /* ===== Page Hero ===== */
    .page-hero {
        position: relative;
        background: linear-gradient(135deg, rgba(15, 36, 56, 0.92), rgba(26, 58, 92, 0.82)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
        padding: 96px 0 70px;
        color: #fff;
        overflow: hidden;
    }

    .page-hero::before {
        content: '';
        position: absolute;
        top: -60px;
        right: -60px;
        width: 320px;
        height: 320px;
        border-radius: 50%;
        background: radial-gradient(circle, rgba(200, 168, 110, 0.2), transparent 65%);
        pointer-events: none;
    }

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

    .page-hero .hero-badge {
        display: inline-flex;
        align-items: center;
        background: rgba(255, 255, 255, 0.12);
        backdrop-filter: blur(10px);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 40px;
        padding: 7px 20px;
        font-size: 0.85rem;
        letter-spacing: 0.6px;
        color: #f0e6d6;
        margin-bottom: 20px;
    }

    .page-hero h1 {
        font-size: 2.9rem;
        font-weight: 700;
        line-height: 1.25;
        letter-spacing: -0.02em;
        margin-bottom: 16px;
    }

    .page-hero .hero-lead {
        font-size: 1.1rem;
        color: rgba(255, 255, 255, 0.82);
        max-width: 680px;
        line-height: 1.85;
        margin-bottom: 26px;
    }

    .hero-stats {
        display: flex;
        gap: 36px;
        margin-top: 36px;
        flex-wrap: wrap;
    }

    .hero-stats .stat-item {
        position: relative;
    }

    .hero-stats .stat-val {
        font-size: 1.7rem;
        font-weight: 700;
        color: #f0e6d6;
        line-height: 1.2;
    }

    .hero-stats .stat-lab {
        font-size: 0.85rem;
        color: rgba(255, 255, 255, 0.65);
        margin-top: 4px;
    }

    @media (max-width: 767px) {
        .page-hero {
            padding: 70px 0 48px;
        }
        .page-hero h1 {
            font-size: 2rem;
        }
        .page-hero .hero-lead {
            font-size: 1rem;
        }
        .hero-stats {
            gap: 24px;
            margin-top: 24px;
        }
        .hero-stats .stat-val {
            font-size: 1.3rem;
        }
    }

    /* ===== Data Dimension Cards ===== */
    .dim-card {
        background: var(--bg-white);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 32px 28px;
        height: 100%;
        transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        position: relative;
        overflow: hidden;
    }

    .dim-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 4px;
        background: linear-gradient(90deg, var(--accent), var(--primary));
        opacity: 0;
        transition: opacity 0.3s ease;
    }

    .dim-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-md);
        border-color: rgba(200, 168, 110, 0.5);
    }

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

    .dim-icon {
        width: 64px;
        height: 64px;
        border-radius: 18px;
        background: linear-gradient(145deg, var(--primary), var(--primary-dark));
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.5rem;
        color: #fff;
        margin-bottom: 22px;
        box-shadow: 0 8px 20px rgba(26, 58, 92, 0.2);
    }

    .dim-card h3 {
        font-size: 1.2rem;
        font-weight: 600;
        color: var(--primary-dark);
        margin-bottom: 10px;
    }

    .dim-card p {
        color: var(--text-muted);
        font-size: 0.95rem;
        line-height: 1.7;
        margin-bottom: 16px;
    }

    .dim-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }

    .dim-tag {
        display: inline-flex;
        align-items: center;
        background: var(--bg-light);
        border-radius: 30px;
        padding: 4px 12px;
        font-size: 0.8rem;
        color: var(--primary);
        font-weight: 500;
    }

    /* ===== Analysis Flow ===== */
    .flow-section {
        background: linear-gradient(145deg, var(--primary-dark), #1d4468);
        color: #fff;
        position: relative;
        overflow: hidden;
    }

    .flow-section::after {
        content: '';
        position: absolute;
        bottom: -120px;
        left: 10%;
        width: 380px;
        height: 380px;
        border-radius: 50%;
        background: radial-gradient(circle, rgba(200, 168, 110, 0.18), transparent 65%);
        pointer-events: none;
    }

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

    .flow-section .section-subtitle {
        color: rgba(255, 255, 255, 0.7);
    }

    .flow-section .section-eyebrow {
        background: rgba(200, 168, 110, 0.2);
        color: #c8a86e;
    }

    .flow-step {
        position: relative;
        padding: 32px 24px;
        border-radius: var(--radius-lg);
        background: rgba(255, 255, 255, 0.06);
        backdrop-filter: blur(12px);
        border: 1px solid rgba(255, 255, 255, 0.1);
        height: 100%;
        transition: all 0.3s ease;
    }

    .flow-step:hover {
        background: rgba(255, 255, 255, 0.1);
        transform: translateY(-4px);
    }

    .flow-num {
        font-size: 0.85rem;
        font-weight: 700;
        color: var(--accent);
        letter-spacing: 1px;
        margin-bottom: 12px;
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }

    .flow-num::before {
        content: '';
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: var(--accent);
        display: inline-block;
    }

    .flow-step h3 {
        font-size: 1.1rem;
        font-weight: 600;
        margin-bottom: 10px;
        color: #fff;
    }

    .flow-step p {
        font-size: 0.92rem;
        color: rgba(255, 255, 255, 0.72);
        line-height: 1.7;
        margin: 0;
    }

    .flow-arrow {
        display: none;
    }

    @media (min-width: 992px) {
        .flow-arrow {
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.2rem;
        }
    }

    /* ===== Featured Data Cards ===== */
    .content-card {
        background: var(--bg-white);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        overflow: hidden;
        height: 100%;
        display: flex;
        flex-direction: column;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

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

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

    .card-thumb img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.45s ease;
    }

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

    .thumb-tag {
        position: absolute;
        top: 14px;
        left: 14px;
        background: rgba(15, 36, 56, 0.82);
        color: #f0e6d6;
        font-size: 0.78rem;
        font-weight: 500;
        padding: 5px 14px;
        border-radius: 30px;
        backdrop-filter: blur(8px);
        z-index: 2;
    }

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

    .card-body-custom h3 {
        font-size: 1.1rem;
        font-weight: 600;
        color: var(--primary-dark);
        line-height: 1.5;
        margin-bottom: 10px;
        transition: color 0.25s ease;
    }

    .content-card:hover .card-body-custom h3 {
        color: var(--accent);
    }

    .card-body-custom p {
        font-size: 0.9rem;
        color: var(--text-muted);
        line-height: 1.7;
        flex: 1;
    }

    .card-meta {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-top: 16px;
        padding-top: 14px;
        border-top: 1px solid var(--border);
        font-size: 0.82rem;
        color: var(--text-muted);
    }

    .card-link {
        color: var(--primary);
        font-weight: 500;
        display: inline-flex;
        align-items: center;
        gap: 6px;
        transition: gap 0.3s ease, color 0.3s ease;
    }

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

    /* ===== Data Comparison ===== */
    .compare-wrapper {
        background: var(--bg-white);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 34px 30px;
        margin-top: 20px;
    }

    .compare-row {
        display: flex;
        align-items: center;
        padding: 16px 0;
        border-bottom: 1px dashed var(--border);
        gap: 20px;
    }

    .compare-row:last-child {
        border-bottom: none;
    }

    .compare-label {
        flex: 0 0 160px;
        font-size: 0.95rem;
        font-weight: 600;
        color: var(--primary);
    }

    .compare-bar-wrap {
        flex: 1;
        display: flex;
        align-items: center;
        gap: 16px;
    }

    .compare-bar {
        flex: 1;
        height: 10px;
        background: var(--bg-light);
        border-radius: 10px;
        overflow: hidden;
    }

    .compare-fill {
        height: 100%;
        border-radius: 10px;
        background: linear-gradient(90deg, var(--primary), #3a6a9a);
        transition: width 1s ease;
    }

    .compare-fill.accent {
        background: linear-gradient(90deg, var(--accent), #e0c48a);
    }

    .compare-val {
        flex: 0 0 48px;
        text-align: right;
        font-size: 1rem;
        font-weight: 700;
        color: var(--primary-dark);
    }

    @media (max-width: 767px) {
        .compare-row {
            flex-direction: column;
            align-items: flex-start;
            gap: 8px;
            padding: 14px 0;
        }
        .compare-label {
            flex: none;
        }
        .compare-bar-wrap {
            width: 100%;
        }
    }

    /* ===== Data Tools / Services ===== */
    .tool-card {
        background: var(--bg-white);
        border-radius: var(--radius-lg);
        padding: 32px 28px;
        text-align: center;
        border: 1px solid var(--border);
        height: 100%;
        transition: all 0.35s ease;
        position: relative;
        z-index: 1;
    }

    .tool-card::after {
        content: '';
        position: absolute;
        inset: 0;
        border-radius: var(--radius-lg);
        background: linear-gradient(160deg, rgba(200, 168, 110, 0.08), rgba(26, 58, 92, 0.05));
        z-index: -1;
        opacity: 0;
        transition: opacity 0.35s ease;
    }

    .tool-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-md);
        border-color: rgba(200, 168, 110, 0.4);
    }

    .tool-card:hover::after {
        opacity: 1;
    }

    .tool-card .tool-icon {
        width: 72px;
        height: 72px;
        margin: 0 auto 20px;
        border-radius: 22px;
        background: linear-gradient(145deg, var(--primary), var(--primary-dark));
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.6rem;
        color: #fff;
        box-shadow: 0 12px 26px rgba(26, 58, 92, 0.22);
    }

    .tool-card h3 {
        font-size: 1.15rem;
        font-weight: 600;
        color: var(--primary-dark);
        margin-bottom: 10px;
    }

    .tool-card p {
        font-size: 0.92rem;
        color: var(--text-muted);
        line-height: 1.7;
    }

    .btn-outline-primary-custom {
        border: 1.5px solid var(--primary);
        color: var(--primary);
        border-radius: 40px;
        padding: 9px 26px;
        font-size: 0.95rem;
        font-weight: 500;
        background: transparent;
        transition: all 0.3s ease;
        display: inline-flex;
        align-items: center;
        gap: 8px;
    }

    .btn-outline-primary-custom:hover {
        background: var(--primary);
        border-color: var(--primary);
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 8px 22px rgba(26, 58, 92, 0.2);
    }

    .btn-primary-custom {
        background: var(--primary);
        color: #fff;
        border: none;
        border-radius: 40px;
        padding: 12px 34px;
        font-size: 1rem;
        font-weight: 600;
        display: inline-flex;
        align-items: center;
        gap: 10px;
        transition: all 0.3s ease;
        box-shadow: 0 8px 24px rgba(26, 58, 92, 0.18);
    }

    .btn-primary-custom:hover {
        background: var(--primary-dark);
        color: #fff;
        transform: translateY(-3px);
        box-shadow: 0 14px 30px rgba(26, 58, 92, 0.28);
    }

    .btn-accent-custom {
        background: var(--accent);
        color: #fff;
        border: none;
        border-radius: 40px;
        padding: 12px 34px;
        font-size: 1rem;
        font-weight: 600;
        display: inline-flex;
        align-items: center;
        gap: 10px;
        transition: all 0.3s ease;
        box-shadow: 0 8px 24px rgba(200, 168, 110, 0.3);
    }

    .btn-accent-custom:hover {
        background: var(--accent-hover);
        color: #fff;
        transform: translateY(-3px);
        box-shadow: 0 14px 32px rgba(200, 168, 110, 0.42);
    }

    /* ===== FAQ ===== */
    .faq-item {
        background: var(--bg-white);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        padding: 24px 28px;
        margin-bottom: 16px;
        transition: all 0.3s ease;
        cursor: pointer;
    }

    .faq-item:hover {
        border-color: rgba(200, 168, 110, 0.4);
        box-shadow: var(--shadow-sm);
    }

    .faq-q {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        font-weight: 600;
        font-size: 1.05rem;
        color: var(--primary-dark);
    }

    .faq-q i {
        color: var(--accent);
        transition: transform 0.3s ease;
        flex-shrink: 0;
    }

    .faq-item[aria-expanded="true"] .faq-q i {
        transform: rotate(45deg);
    }

    .faq-a {
        padding-top: 14px;
        color: var(--text-muted);
        font-size: 0.95rem;
        line-height: 1.8;
        border-top: 1px dashed var(--border);
        margin-top: 14px;
    }

    /* ===== CTA ===== */
    .cta-section {
        background: linear-gradient(145deg, var(--primary-dark), #1d4468);
        border-radius: var(--radius-lg);
        padding: 60px 48px;
        position: relative;
        overflow: hidden;
        color: #fff;
        margin-bottom: -88px;
        z-index: 5;
    }

    .cta-section::before {
        content: '';
        position: absolute;
        top: -80px;
        right: -40px;
        width: 300px;
        height: 300px;
        border-radius: 50%;
        background: radial-gradient(circle, rgba(200, 168, 110, 0.25), transparent 65%);
        pointer-events: none;
    }

    .cta-section h2 {
        font-size: 1.8rem;
        font-weight: 700;
        margin-bottom: 14px;
        letter-spacing: -0.02em;
    }

    .cta-section p {
        color: rgba(255, 255, 255, 0.75);
        font-size: 1.02rem;
        max-width: 560px;
        line-height: 1.8;
        margin-bottom: 24px;
    }

    @media (max-width: 767px) {
        .cta-section {
            padding: 44px 24px;
        }
        .cta-section h2 {
            font-size: 1.45rem;
        }
    }

    /* ===== Footer ===== */
    .site-footer {
        background: var(--primary-dark);
        color: rgba(255, 255, 255, 0.8);
        padding: 120px 0 0;
        margin-top: 88px;
    }

    .site-footer a {
        color: rgba(255, 255, 255, 0.7);
        transition: color 0.25s ease;
    }

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

    .footer-brand {
        font-size: 1.4rem;
        font-weight: 700;
        color: #fff;
        margin-bottom: 16px;
        letter-spacing: 0.01em;
    }

    .site-footer h4 {
        font-size: 1.05rem;
        color: #fff;
        font-weight: 600;
        margin-bottom: 20px;
        position: relative;
        padding-bottom: 12px;
    }

    .site-footer h4::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 30px;
        height: 2px;
        background: var(--accent);
        border-radius: 2px;
    }

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

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

    .site-footer ul li a {
        font-size: 0.95rem;
        opacity: 0.85;
    }

    .site-footer ul li a:hover {
        opacity: 1;
    }

    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.12);
        margin-top: 46px;
        padding: 24px 0;
        font-size: 0.88rem;
        color: rgba(255, 255, 255, 0.55);
    }

    .social-links {
        display: flex;
        gap: 12px;
        margin-top: 16px;
    }

    .social-links a {
        width: 40px;
        height: 40px;
        border-radius: 12px;
        background: rgba(255, 255, 255, 0.08);
        display: flex;
        align-items: center;
        justify-content: center;
        color: rgba(255, 255, 255, 0.8);
        transition: all 0.3s ease;
    }

    .social-links a:hover {
        background: var(--accent);
        color: #fff;
        transform: translateY(-3px);
    }

    @media (max-width: 767px) {
        .site-footer {
            padding-top: 100px;
        }
        .footer-brand {
            font-size: 1.2rem;
        }
    }

    /* ===== Focus accessible ===== */
    a:focus-visible,
    button:focus-visible {
        outline: 3px solid rgba(200, 168, 110, 0.6);
        outline-offset: 3px;
        border-radius: 6px;
    }

    /* ===== Extra utilities ===== */
    .icon-circle {
        width: 46px;
        height: 46px;
        border-radius: 50%;
        background: rgba(200, 168, 110, 0.15);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--accent);
        font-size: 1rem;
        flex-shrink: 0;
    }

    .divider-line {
        width: 60px;
        height: 2px;
        background: var(--accent);
        border-radius: 2px;
        margin: 18px 0 20px;
    }

    @media (max-width: 520px) {
        .section-pad {
            padding: 52px 0;
        }
        .section-title {
            font-size: 1.5rem;
        }
        .page-hero h1 {
            font-size: 1.7rem;
        }
        .hero-stats {
            gap: 18px;
        }
        .hero-stats .stat-val {
            font-size: 1.15rem;
        }
        .footer-bottom .d-flex {
            flex-direction: column;
            gap: 8px;
        }
    }

/* roulang page: category3 */
:root {
            --primary: #1a3a5c;
            --primary-dark: #0f2438;
            --primary-light: #2d5a85;
            --accent: #c99b5f;
            --accent-light: #e4c59a;
            --bg: #f6f7f9;
            --bg-deep: #0c1b2b;
            --text: #1c2b3a;
            --text-muted: #5a6c7a;
            --text-light: #8a9aa8;
            --border: #e2e6ea;
            --white: #ffffff;
            --radius: 14px;
            --radius-lg: 24px;
            --shadow-sm: 0 3px 12px rgba(16, 36, 56, 0.06);
            --shadow: 0 12px 36px rgba(16, 36, 56, 0.10);
            --shadow-lg: 0 24px 64px rgba(10, 26, 42, 0.18);
            --space: 100px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }

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

        .container-custom {
            max-width: 1260px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ==================== 导航 ==================== */
        .site-header {
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .site-header .navbar {
            padding: 14px 0;
            position: relative;
        }

        .site-header .navbar-brand {
            display: flex;
            align-items: center;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.02em;
        }

        .site-header .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
            margin-right: 10px;
            box-shadow: 0 4px 12px rgba(26, 58, 92, 0.3);
        }

        .site-header .navbar-nav .nav-link {
            font-size: 0.98rem;
            color: var(--text-muted);
            padding: 8px 18px;
            font-weight: 500;
            position: relative;
            transition: color 0.25s ease;
        }

        .site-header .navbar-nav .nav-link:hover {
            color: var(--primary);
        }

        .site-header .navbar-nav .nav-link.active {
            color: var(--primary);
        }

        .site-header .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 18px;
            right: 18px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .site-header .navbar-toggler {
            border: none;
            color: var(--primary);
            font-size: 1.3rem;
            padding: 6px 10px;
        }

        .site-header .navbar-toggler:focus {
            outline: 2px solid rgba(26, 58, 92, 0.2);
            box-shadow: none;
        }

        /* ==================== 页内 Banner ==================== */
        .page-banner {
            position: relative;
            padding: 120px 0 110px;
            background: linear-gradient(135deg, var(--bg-deep) 0%, var(--primary-dark) 45%, var(--primary) 100%);
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -80px;
            right: -80px;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(201, 155, 95, 0.18), transparent 70%);
        }

        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }

        .page-banner .banner-tagline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(201, 155, 95, 0.16);
            border: 1px solid rgba(201, 155, 95, 0.35);
            color: var(--accent-light);
            font-size: 0.85rem;
            padding: 6px 16px;
            border-radius: 40px;
            margin-bottom: 20px;
            letter-spacing: 0.04em;
        }

        .page-banner h1 {
            color: #fff;
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
        }

        .page-banner h1 span {
            color: var(--accent-light);
        }

        .page-banner p {
            color: rgba(255, 255, 255, 0.72);
            font-size: 1.1rem;
            line-height: 1.8;
            margin-bottom: 36px;
            max-width: 600px;
        }

        .banner-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            margin-top: 32px;
        }

        .banner-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.92rem;
        }

        .banner-meta .meta-item i {
            color: var(--accent);
        }

        /* ==================== 板块通用 ==================== */
        .section {
            padding: var(--space) 0;
        }

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

        .section-header {
            margin-bottom: 52px;
        }

        .section-header .section-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent);
            background: rgba(201, 155, 95, 0.1);
            padding: 5px 14px;
            border-radius: 30px;
            margin-bottom: 14px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-header .section-sub {
            color: var(--text-muted);
            font-size: 1.02rem;
            max-width: 640px;
            line-height: 1.75;
        }

        .section-header.centered {
            text-align: center;
        }

        .section-header.centered .section-sub {
            margin: 0 auto;
        }

        /* ==================== 课程体系 ==================== */
        .curriculum-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .curriculum-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            position: relative;
        }

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

        .curriculum-card .card-level {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 30px;
            margin-bottom: 20px;
        }

        .curriculum-card .card-level.level-basic {
            background: #e8f4f0;
            color: #1d7a62;
        }

        .curriculum-card .card-level.level-inter {
            background: #fff3e0;
            color: #b06e2c;
        }

        .curriculum-card .card-level.level-advanced {
            background: #e8eef8;
            color: #3a5b94;
        }

        .curriculum-card .card-icon {
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.4rem;
            margin-bottom: 22px;
        }

        .curriculum-card h5 {
            font-size: 1.18rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .curriculum-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .curriculum-card .card-footer-text {
            font-size: 0.85rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 8px;
            border-top: 1px solid var(--border);
            padding-top: 16px;
            margin-top: 4px;
        }

        .curriculum-card .card-footer-text i {
            color: var(--accent);
        }

        /* ==================== 课程清单 ==================== */
        .course-list-wrapper {
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .course-row {
            display: flex;
            align-items: center;
            gap: 28px;
            padding: 28px 32px;
            border-bottom: 1px solid var(--border);
            transition: background 0.25s ease;
        }

        .course-row:last-child {
            border-bottom: none;
        }

        .course-row:hover {
            background: #fafbfc;
        }

        .course-row .course-thumb {
            flex-shrink: 0;
            width: 110px;
            height: 82px;
            border-radius: 12px;
            overflow: hidden;
        }

        .course-row .course-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .course-row .course-info {
            flex: 1;
        }

        .course-row .course-info h5 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .course-row .course-info p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        .course-row .course-meta {
            text-align: right;
            flex-shrink: 0;
        }

        .course-row .course-meta .course-duration {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 4px;
        }

        .course-row .course-meta .course-level {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 20px;
            background: rgba(26, 58, 92, 0.08);
            color: var(--primary);
        }

        /* ==================== 导师面板 ==================== */
        .instructor-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .instructor-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

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

        .instructor-card .instructor-photo {
            height: 220px;
            overflow: hidden;
            position: relative;
        }

        .instructor-card .instructor-photo img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .instructor-card .instructor-photo .photo-badge {
            position: absolute;
            left: 16px;
            bottom: 14px;
            background: rgba(12, 27, 43, 0.82);
            color: #fff;
            font-size: 0.75rem;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.03em;
        }

        .instructor-card .instructor-body {
            padding: 24px;
        }

        .instructor-card .instructor-body h5 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 2px;
        }

        .instructor-card .instructor-body .specialty {
            font-size: 0.82rem;
            color: var(--accent);
            margin-bottom: 10px;
            display: block;
            font-weight: 500;
        }

        .instructor-card .instructor-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ==================== 学习收益 ==================== */
        .benefit-panel {
            background: linear-gradient(135deg, var(--bg-deep) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 64px 56px;
            position: relative;
            overflow: hidden;
        }

        .benefit-panel::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(201, 155, 95, 0.16), transparent 70%);
        }

        .benefit-panel::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -100px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .benefit-panel .panel-icon {
            width: 60px;
            height: 60px;
            background: rgba(201, 155, 95, 0.18);
            border: 1px solid rgba(201, 155, 95, 0.3);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-light);
            margin-bottom: 20px;
        }

        .benefit-panel h2 {
            color: #fff;
            font-size: 1.7rem;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .benefit-panel p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.98rem;
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 32px;
        }

        .benefit-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
            margin-bottom: 36px;
            max-width: 640px;
        }

        .benefit-list .benefit-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.88);
            font-size: 0.95rem;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.07);
            padding: 12px 16px;
            border-radius: 10px;
        }

        .benefit-list .benefit-item i {
            color: var(--accent);
        }

        /* ==================== FAQ ==================== */
        .faq-wrapper {
            max-width: 820px;
            margin: 0 auto;
        }

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

        .accordion-button {
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary);
            padding: 20px 24px;
            background: var(--white);
            transition: background 0.25s ease;
        }

        .accordion-button:not(.collapsed) {
            background: rgba(26, 58, 92, 0.04);
            color: var(--primary);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid rgba(26, 58, 92, 0.1);
        }

        .accordion-body {
            padding: 0 24px 20px;
            color: var(--text-muted);
            font-size: 0.94rem;
            line-height: 1.8;
        }

        /* ==================== CTA ==================== */
        .cta-panel {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-lg);
            padding: 64px 56px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cta-panel::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 220px;
            height: 220px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
        }

        .cta-panel::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 30%;
            width: 180px;
            height: 180px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 50%;
        }

        .cta-panel h2 {
            color: #fff;
            font-size: 2.1rem;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .cta-panel p {
            color: rgba(255, 255, 255, 0.78);
            font-size: 1.02rem;
            max-width: 560px;
            margin-bottom: 36px;
        }

        .cta-panel .btn-cta {
            background: var(--accent);
            color: var(--primary-dark);
            border: none;
            font-size: 1rem;
            font-weight: 700;
            padding: 14px 38px;
            border-radius: 50px;
            transition: all 0.3s ease;
        }

        .cta-panel .btn-cta:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
        }

        /* ==================== 页脚 ==================== */
        .site-footer {
            background: var(--bg-deep);
            color: rgba(255, 255, 255, 0.72);
            padding: 70px 0 0;
            margin-top: var(--space);
        }

        .site-footer .footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .site-footer h4 {
            color: #fff;
            font-size: 0.92rem;
            font-weight: 700;
            margin-bottom: 18px;
            text-transform: uppercase;
            letter-spacing: 0.08em;
        }

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

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

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.92rem;
            transition: color 0.25s ease, padding-left 0.25s ease;
        }

        .site-footer ul li a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }

        .site-footer .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.7);
            transition: all 0.25s ease;
        }

        .site-footer .footer-social a:hover {
            background: var(--accent);
            color: var(--primary-dark);
            transform: translateY(-3px);
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 50px;
            padding: 22px 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

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

        /* ==================== 响应式 ==================== */
        @media (max-width: 1024px) {
            .curriculum-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .instructor-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .page-banner h1 {
                font-size: 2.6rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space: 64px;
            }

            .site-header .navbar-nav .nav-link.active::after {
                display: none;
            }

            .site-header .navbar-nav .nav-link.active {
                background: rgba(26, 58, 92, 0.06);
                border-radius: 8px;
            }

            .page-banner {
                padding: 80px 0 70px;
            }

            .page-banner h1 {
                font-size: 2.2rem;
            }

            .section-header h2 {
                font-size: 1.7rem;
            }

            .curriculum-grid {
                grid-template-columns: 1fr;
            }

            .instructor-grid {
                grid-template-columns: 1fr;
            }

            .course-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
                padding: 24px;
            }

            .course-row .course-thumb {
                width: 100%;
                height: 160px;
            }

            .course-row .course-meta {
                text-align: left;
            }

            .benefit-panel {
                padding: 40px 28px;
            }

            .benefit-list {
                grid-template-columns: 1fr;
            }

            .cta-panel {
                padding: 40px 28px;
            }

            .cta-panel h2 {
                font-size: 1.6rem;
            }

            .banner-meta {
                gap: 18px;
                flex-direction: column;
                gap: 12px;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding: 0 18px;
            }

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

            .page-banner h1 {
                font-size: 1.9rem;
            }

            .page-banner p {
                font-size: 1rem;
            }

            .curriculum-card {
                padding: 26px 22px;
            }

            .benefit-panel {
                padding: 32px 22px;
            }

            .cta-panel {
                padding: 32px 22px;
            }

            .cta-panel .btn-cta {
                padding: 12px 30px;
                font-size: 0.94rem;
            }

            .course-row .course-thumb {
                height: 130px;
            }
        }