/* roulang page: index */
:root{
        --brand:#1357b8;
        --brand-deep:#0b3a7d;
        --brand-light:#2f86ea;
        --brand-soft:#e9f1fc;
        --accent:#e9a63a;
        --ink:#101c30;
        --muted:#5c6d85;
        --line:#e3ebf6;
        --bg:#f5f8fd;
        --surface:#ffffff;
        --radius:14px;
        --radius-sm:10px;
        --shadow-sm:0 2px 10px rgba(16,40,80,.06);
        --shadow-md:0 10px 26px rgba(16,40,80,.10);
        --shadow-lg:0 18px 42px rgba(16,40,80,.14);
        --container:1180px;
    }
    *,*::before,*::after{box-sizing:border-box;}
    html{scroll-behavior:smooth;}
    body{
        margin:0;
        font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
        font-size:15.5px;
        line-height:1.75;
        color:var(--ink);
        background:var(--surface);
        -webkit-font-smoothing:antialiased;
    }
    h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
    ul,ol{padding:0;list-style:none;}
    a{color:inherit;text-decoration:none;}
    img{display:block;max-width:100%;height:auto;}
    button{font:inherit;cursor:pointer;border:none;background:none;color:inherit;}
    input,select,textarea{font:inherit;color:inherit;}
    a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
        outline:3px solid rgba(47,134,234,.45);
        outline-offset:2px;
        border-radius:6px;
    }
    .container{
        width:100%;
        max-width:var(--container);
        margin:0 auto;
        padding:0 24px;
    }

    /* ---------- 浮动 Dock 导航 ---------- */
    .site-header{
        position:fixed;
        top:0;left:0;right:0;
        z-index:60;
        padding:16px 20px 0;
        pointer-events:none;
        transition:padding .25s ease;
    }
    .site-header.is-scrolled{padding-top:10px;}
    .dock{
        pointer-events:auto;
        max-width:var(--container);
        margin:0 auto;
        display:flex;
        align-items:center;
        gap:18px;
        padding:10px 14px 10px 18px;
        background:rgba(255,255,255,.92);
        backdrop-filter:blur(14px);
        border:1px solid rgba(19,87,184,.10);
        border-radius:999px;
        box-shadow:var(--shadow-sm);
        transition:box-shadow .25s ease,transform .25s ease;
    }
    .site-header.is-scrolled .dock{box-shadow:var(--shadow-md);}
    .brand{
        display:flex;
        align-items:center;
        gap:10px;
        flex-shrink:0;
        font-weight:800;
        letter-spacing:.5px;
        color:var(--brand-deep);
        font-size:17px;
    }
    .brand-mark{
        width:34px;height:34px;
        display:grid;place-items:center;
        border-radius:11px;
        background:linear-gradient(140deg,var(--brand),var(--brand-light));
        color:#fff;
        font-size:16px;
        font-weight:800;
        box-shadow:0 6px 14px rgba(19,87,184,.28);
    }
    .dock-nav{
        display:flex;
        align-items:center;
        gap:4px;
        margin-left:8px;
    }
    .nav-link{
        display:inline-flex;
        align-items:center;
        height:38px;
        padding:0 16px;
        border-radius:999px;
        font-size:14.5px;
        font-weight:600;
        color:var(--muted);
        transition:color .2s ease,background .2s ease;
    }
    .nav-link:hover{color:var(--brand);background:var(--brand-soft);}
    .nav-link.active{color:var(--brand-deep);background:var(--brand-soft);}
    .dock-right{
        margin-left:auto;
        display:flex;
        align-items:center;
        gap:10px;
    }
    .nav-toggle{
        display:none;
        width:42px;height:42px;
        border-radius:50%;
        border:1px solid var(--line);
        align-items:center;
        justify-content:center;
        color:var(--brand-deep);
    }
    .nav-toggle svg{width:20px;height:20px;}

    /* ---------- 按钮 ---------- */
    .btn{
        display:inline-flex;
        align-items:center;
        justify-content:center;
        gap:8px;
        height:44px;
        padding:0 22px;
        border-radius:10px;
        font-weight:700;
        font-size:14.5px;
        letter-spacing:.3px;
        transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
        white-space:nowrap;
    }
    .btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:999px;}
    .btn-lg{height:52px;padding:0 28px;font-size:16px;}
    .btn-primary{
        background:linear-gradient(135deg,var(--brand),var(--brand-light));
        color:#fff;
        box-shadow:0 8px 20px rgba(19,87,184,.28);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(19,87,184,.34);}
    .btn-primary:active{transform:translateY(0);}
    .btn-light{
        background:#fff;
        color:var(--brand-deep);
        box-shadow:0 10px 24px rgba(9,32,68,.20);
    }
    .btn-light:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(9,32,68,.26);}
    .btn-ghost{
        border:1px solid rgba(19,87,184,.28);
        color:var(--brand);
        background:rgba(255,255,255,.7);
    }
    .btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px);}

    /* ---------- Hero 斜切色块 ---------- */
    .hero{
        position:relative;
        margin-top:0;
        padding:150px 0 130px;
        overflow:hidden;
        clip-path:polygon(0 0,100% 0,100% 90%,0 100%);
        background:linear-gradient(135deg,#0b3a7d 0%,#1357b8 55%,#2f86ea 100%);
        color:#fff;
    }
    .hero-media{
        position:absolute;
        inset:0;
        background-size:cover;
        background-position:center;
        opacity:.20;
        mix-blend-mode:luminosity;
    }
    .hero::after{
        content:"";
        position:absolute;
        right:-140px;top:-120px;
        width:520px;height:520px;
        border-radius:50%;
        background:radial-gradient(circle,rgba(255,255,255,.22),rgba(255,255,255,0) 70%);
    }
    .hero-inner{
        position:relative;
        z-index:2;
        display:grid;
        grid-template-columns:1.15fr .85fr;
        gap:56px;
        align-items:center;
    }
    .hero-eyebrow{
        display:inline-flex;
        align-items:center;
        gap:8px;
        padding:6px 14px;
        border-radius:999px;
        background:rgba(255,255,255,.16);
        border:1px solid rgba(255,255,255,.28);
        font-size:13px;
        font-weight:600;
        letter-spacing:1px;
        margin-bottom:20px;
    }
    .hero h1{
        font-size:42px;
        line-height:1.26;
        font-weight:800;
        letter-spacing:.5px;
        margin-bottom:20px;
        text-shadow:0 3px 18px rgba(4,22,50,.28);
    }
    .hero-sub{
        font-size:15.5px;
        line-height:1.85;
        color:rgba(255,255,255,.90);
        max-width:640px;
    }
    .hero-actions{
        display:flex;
        flex-wrap:wrap;
        gap:14px;
        margin-top:28px;
    }
    .hero-chips{
        display:flex;
        flex-wrap:wrap;
        gap:10px;
        margin-top:30px;
    }
    .hero-chips li{
        padding:6px 14px;
        border-radius:999px;
        font-size:13px;
        font-weight:600;
        color:rgba(255,255,255,.94);
        background:rgba(255,255,255,.12);
        border:1px solid rgba(255,255,255,.22);
    }
    .road-panel{
        background:rgba(255,255,255,.96);
        border-radius:18px;
        padding:22px;
        color:var(--ink);
        box-shadow:var(--shadow-lg);
        transform:rotate(-1.2deg);
    }
    .road-panel-head{
        display:flex;
        align-items:center;
        justify-content:space-between;
        margin-bottom:16px;
    }
    .road-panel-head strong{font-size:15px;color:var(--brand-deep);}
    .road-panel-head span{
        font-size:12px;
        color:var(--brand);
        background:var(--brand-soft);
        padding:3px 10px;
        border-radius:999px;
        font-weight:700;
    }
    .road-grid{
        display:grid;
        grid-template-columns:repeat(6,1fr);
        gap:8px;
    }
    .road-dot{
        aspect-ratio:1/1;
        border-radius:50%;
        display:grid;
        place-items:center;
        font-size:12px;
        font-weight:800;
        color:#fff;
    }
    .dot-b{background:#1f6fd0;}
    .dot-p{background:#e08a2e;}
    .dot-t{background:#8b9cb5;}
    .road-legend{
        display:flex;
        gap:18px;
        margin-top:18px;
        font-size:12.5px;
        color:var(--muted);
    }
    .road-legend i{
        display:inline-block;
        width:9px;height:9px;
        border-radius:50%;
        margin-right:6px;
        vertical-align:middle;
    }

    /* ---------- 通用板块 ---------- */
    .section{padding:78px 0;}
    .section-alt{background:var(--bg);}
    .section-tight{padding:62px 0;}
    .section-head{max-width:760px;margin-bottom:40px;}
    .section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
    .section-tag{
        display:inline-flex;
        align-items:center;
        gap:8px;
        font-size:12.5px;
        font-weight:800;
        letter-spacing:2px;
        color:var(--brand);
        text-transform:uppercase;
        margin-bottom:12px;
    }
    .section-tag::before{
        content:"";
        width:22px;height:3px;
        border-radius:2px;
        background:linear-gradient(90deg,var(--brand),var(--brand-light));
    }
    .section-head h2{
        font-size:29px;
        line-height:1.36;
        font-weight:800;
        letter-spacing:.4px;
        color:var(--ink);
        margin-bottom:14px;
    }
    .section-head p{
        font-size:15px;
        color:var(--muted);
        line-height:1.85;
    }

    /* ---------- 指标看板 ---------- */
    .metrics{
        display:grid;
        grid-template-columns:repeat(4,1fr);
        gap:20px;
    }
    .metric-card{
        background:var(--surface);
        border:1px solid var(--line);
        border-radius:var(--radius);
        padding:26px 22px;
        box-shadow:var(--shadow-sm);
        transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
    }
    .metric-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(19,87,184,.24);}
    .metric-num{
        font-size:34px;
        font-weight:800;
        color:var(--brand-deep);
        letter-spacing:.5px;
        line-height:1.1;
    }
    .metric-num small{font-size:15px;font-weight:700;margin-left:4px;color:var(--brand);}
    .metric-label{
        margin-top:10px;
        font-size:14.5px;
        font-weight:700;
        color:var(--ink);
    }
    .metric-desc{
        margin-top:6px;
        font-size:13.5px;
        color:var(--muted);
        line-height:1.7;
    }

    /* ---------- 玩法矩阵卡片 ---------- */
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
    .card{
        background:var(--surface);
        border:1px solid var(--line);
        border-radius:var(--radius);
        padding:26px 24px;
        box-shadow:var(--shadow-sm);
        transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
    }
    .card:hover{
        transform:translateY(-4px);
        box-shadow:var(--shadow-md);
        border-color:rgba(19,87,184,.26);
    }
    .card-icon{
        width:44px;height:44px;
        border-radius:12px;
        display:grid;place-items:center;
        background:var(--brand-soft);
        color:var(--brand);
        margin-bottom:16px;
    }
    .card-icon svg{width:22px;height:22px;}
    .card h3{
        font-size:17.5px;
        font-weight:800;
        margin-bottom:10px;
        color:var(--ink);
    }
    .card p{
        font-size:14px;
        color:var(--muted);
        line-height:1.8;
    }
    .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
    .tag{
        display:inline-block;
        padding:4px 11px;
        border-radius:999px;
        font-size:12.5px;
        font-weight:700;
        color:var(--brand);
        background:var(--brand-soft);
    }
    .tag-muted{color:var(--muted);background:#eef3fa;}

    /* ---------- 时段卡 ---------- */
    .session-list{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
    .session-card{
        position:relative;
        background:var(--surface);
        border:1px solid var(--line);
        border-radius:var(--radius);
        padding:28px 24px 26px;
        box-shadow:var(--shadow-sm);
        overflow:hidden;
        transition:transform .2s ease,box-shadow .2s ease;
    }
    .session-card::before{
        content:"";
        position:absolute;
        left:0;top:0;bottom:0;
        width:4px;
        background:linear-gradient(180deg,var(--brand),var(--brand-light));
    }
    .session-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
    .session-time{
        font-size:13px;
        font-weight:800;
        letter-spacing:1px;
        color:var(--brand);
        margin-bottom:10px;
    }
    .session-card h3{font-size:17px;font-weight:800;margin-bottom:10px;}
    .session-card p{font-size:14px;color:var(--muted);line-height:1.8;}
    .session-card ul{margin-top:14px;display:grid;gap:8px;}
    .session-card li{
        position:relative;
        padding-left:18px;
        font-size:13.5px;
        color:var(--muted);
    }
    .session-card li::before{
        content:"";
        position:absolute;
        left:0;top:.72em;
        width:7px;height:7px;
        border-radius:2px;
        background:var(--brand-light);
    }

    /* ---------- 团队 ---------- */
    .team-card{text-align:left;}
    .avatar{
        width:52px;height:52px;
        border-radius:50%;
        display:grid;place-items:center;
        font-weight:800;
        font-size:17px;
        color:#fff;
        background:linear-gradient(140deg,var(--brand),var(--brand-light));
        margin-bottom:14px;
        box-shadow:0 6px 16px rgba(19,87,184,.24);
    }
    .team-role{font-size:12.5px;font-weight:700;color:var(--brand);letter-spacing:1px;margin-bottom:6px;}

    /* ---------- 结果对比 ---------- */
    .compare{
        display:grid;
        grid-template-columns:1fr 1fr;
        gap:22px;
    }
    .compare-box{
        border-radius:var(--radius);
        padding:28px 26px;
        border:1px solid var(--line);
        background:var(--surface);
        box-shadow:var(--shadow-sm);
    }
    .compare-box.after{
        border-color:rgba(19,87,184,.30);
        background:linear-gradient(180deg,#f3f8ff,#ffffff);
        box-shadow:var(--shadow-md);
    }
    .compare-title{
        display:flex;
        align-items:center;
        gap:10px;
        font-size:16px;
        font-weight:800;
        margin-bottom:18px;
    }
    .compare-badge{
        font-size:12px;
        font-weight:800;
        padding:3px 10px;
        border-radius:999px;
        background:#eef3fa;
        color:var(--muted);
    }
    .compare-box.after .compare-badge{background:var(--brand);color:#fff;}
    .compare-list{display:grid;gap:12px;}
    .compare-list li{
        position:relative;
        padding-left:26px;
        font-size:14px;
        color:var(--muted);
        line-height:1.75;
    }
    .compare-list li::before{
        content:"";
        position:absolute;
        left:0;top:.62em;
        width:14px;height:14px;
        border-radius:50%;
        border:2px solid #cfdceb;
    }
    .compare-box.after .compare-list li{color:var(--ink);}
    .compare-box.after .compare-list li::before{
        border-color:var(--brand);
        background:radial-gradient(circle,var(--brand) 0 40%,transparent 45%);
    }

    /* ---------- 里程碑 ---------- */
    .timeline{
        display:grid;
        grid-template-columns:repeat(4,1fr);
        gap:20px;
        position:relative;
    }
    .timeline::before{
        content:"";
        position:absolute;
        top:19px;left:6%;right:6%;
        height:2px;
        background:linear-gradient(90deg,rgba(19,87,184,.10),rgba(19,87,184,.35),rgba(19,87,184,.10));
    }
    .timeline-item{position:relative;padding-top:52px;}
    .timeline-dot{
        position:absolute;
        top:8px;left:0;
        width:24px;height:24px;
        border-radius:50%;
        background:#fff;
        border:3px solid var(--brand);
        box-shadow:0 0 0 5px rgba(19,87,184,.10);
    }
    .timeline-item h3{font-size:16px;font-weight:800;margin-bottom:8px;}
    .timeline-item p{font-size:13.8px;color:var(--muted);line-height:1.78;}

    /* ---------- 分类入口墙 ---------- */
    .channel-card{
        position:relative;
        overflow:hidden;
        background:var(--surface);
        border:1px solid var(--line);
        border-radius:var(--radius);
        box-shadow:var(--shadow-sm);
        transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
        display:flex;
        flex-direction:column;
    }
    .channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(19,87,184,.28);}
    .channel-thumb{height:150px;overflow:hidden;}
    .channel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
    .channel-card:hover .channel-thumb img{transform:scale(1.05);}
    .channel-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
    .channel-body h3{font-size:17.5px;font-weight:800;margin-bottom:10px;}
    .channel-body p{font-size:14px;color:var(--muted);line-height:1.78;flex:1;}
    .channel-link{
        display:inline-flex;
        align-items:center;
        gap:6px;
        margin-top:16px;
        font-size:14px;
        font-weight:800;
        color:var(--brand);
    }
    .channel-link span{transition:transform .2s ease;display:inline-block;}
    .channel-card:hover .channel-link span{transform:translateX(4px);}

    /* ---------- 场景矩阵 ---------- */
    .scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
    .scene-item{
        display:flex;
        gap:18px;
        padding:24px;
        border-radius:var(--radius);
        background:var(--surface);
        border:1px solid var(--line);
        box-shadow:var(--shadow-sm);
        transition:transform .2s ease,box-shadow .2s ease;
    }
    .scene-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
    .scene-num{
        flex-shrink:0;
        width:40px;height:40px;
        border-radius:12px;
        display:grid;place-items:center;
        background:var(--brand-soft);
        color:var(--brand-deep);
        font-weight:800;
        font-size:15px;
    }
    .scene-item h3{font-size:16px;font-weight:800;margin-bottom:8px;}
    .scene-item p{font-size:14px;color:var(--muted);line-height:1.78;}

    /* ---------- 评价 ---------- */
    .testimonial{
        background:var(--surface);
        border:1px solid var(--line);
        border-radius:var(--radius);
        padding:26px 24px;
        box-shadow:var(--shadow-sm);
        transition:transform .2s ease,box-shadow .2s ease;
    }
    .testimonial:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
    .quote-mark{font-size:30px;font-weight:800;color:rgba(19,87,184,.20);line-height:1;}
    .testimonial p{font-size:14.2px;color:var(--ink);line-height:1.82;margin:10px 0 16px;}
    .testimonial-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
    .testimonial-meta .dot{width:6px;height:6px;border-radius:50%;background:var(--brand-light);}
    .assure-bar{
        margin-top:26px;
        display:grid;
        grid-template-columns:repeat(4,1fr);
        gap:16px;
        padding:22px 24px;
        border-radius:var(--radius);
        background:var(--brand-deep);
        color:rgba(255,255,255,.92);
    }
    .assure-bar div{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:600;}
    .assure-bar svg{width:20px;height:20px;flex-shrink:0;color:#8fc0f5;}

    /* ---------- 资讯列表 ---------- */
    .news-layout{display:grid;grid-template-columns:1.55fr 1fr;gap:30px;align-items:start;}
    .news-list{display:grid;gap:16px;}
    .news-item{
        display:grid;
        grid-template-columns:132px 1fr;
        gap:18px;
        padding:14px;
        background:var(--surface);
        border:1px solid var(--line);
        border-radius:var(--radius);
        box-shadow:var(--shadow-sm);
        transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
    }
    .news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(19,87,184,.26);}
    .news-thumb{
        border-radius:var(--radius-sm);
        overflow:hidden;
        aspect-ratio:4/3;
        background:var(--brand-soft);
    }
    .news-thumb img{width:100%;height:100%;object-fit:cover;}
    .news-body{display:flex;flex-direction:column;justify-content:center;}
    .news-meta{
        display:flex;
        flex-wrap:wrap;
        align-items:center;
        gap:10px;
        font-size:12.5px;
        color:var(--muted);
        margin-bottom:6px;
    }
    .news-meta .pill{
        color:var(--brand);
        background:var(--brand-soft);
        padding:2px 9px;
        border-radius:999px;
        font-weight:700;
    }
    .news-body h3{
        font-size:16px;
        font-weight:800;
        line-height:1.5;
        margin-bottom:6px;
        color:var(--ink);
    }
    .news-body p{font-size:13.6px;color:var(--muted);line-height:1.72;}
    .news-side{
        background:var(--surface);
        border:1px solid var(--line);
        border-radius:var(--radius);
        padding:24px;
        box-shadow:var(--shadow-sm);
        position:sticky;
        top:96px;
    }
    .news-side h3{
        font-size:16px;
        font-weight:800;
        margin-bottom:16px;
        padding-bottom:12px;
        border-bottom:1px solid var(--line);
    }
    .side-item{
        display:block;
        padding:12px 0;
        border-bottom:1px dashed var(--line);
        transition:color .18s ease;
    }
    .side-item:last-child{border-bottom:none;padding-bottom:0;}
    .side-item:hover .side-title{color:var(--brand);}
    .side-title{
        font-size:14.2px;
        font-weight:700;
        line-height:1.6;
        color:var(--ink);
        transition:color .18s ease;
    }
    .side-meta{font-size:12.5px;color:var(--muted);margin-top:4px;}
    .cms-empty{
        padding:34px 24px;
        border:1px dashed var(--line);
        border-radius:var(--radius);
        text-align:center;
        color:var(--muted);
        font-size:14px;
        background:var(--surface);
    }

    /* ---------- 保障勾选 ---------- */
    .check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 26px;}
    .check-item{
        display:flex;
        gap:14px;
        padding:18px 20px;
        background:var(--surface);
        border:1px solid var(--line);
        border-radius:var(--radius-sm);
        box-shadow:var(--shadow-sm);
    }
    .check-icon{
        flex-shrink:0;
        width:26px;height:26px;
        border-radius:50%;
        background:var(--brand-soft);
        color:var(--brand);
        display:grid;place-items:center;
    }
    .check-icon svg{width:15px;height:15px;}
    .check-item h3{font-size:15px;font-weight:800;margin-bottom:6px;}
    .check-item p{font-size:13.6px;color:var(--muted);line-height:1.75;}

    /* ---------- FAQ ---------- */
    .faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto;}
    .faq-item{
        background:var(--surface);
        border:1px solid var(--line);
        border-radius:var(--radius-sm);
        box-shadow:var(--shadow-sm);
        overflow:hidden;
        transition:border-color .2s ease,box-shadow .2s ease;
    }
    .faq-item[open]{border-color:rgba(19,87,184,.30);box-shadow:var(--shadow-md);}
    .faq-item summary{
        list-style:none;
        cursor:pointer;
        display:flex;
        align-items:center;
        justify-content:space-between;
        gap:16px;
        padding:20px 22px;
        font-size:15.5px;
        font-weight:800;
        color:var(--ink);
    }
    .faq-item summary::-webkit-details-marker{display:none;}
    .faq-plus{
        flex-shrink:0;
        width:24px;height:24px;
        border-radius:50%;
        background:var(--brand-soft);
        color:var(--brand);
        display:grid;place-items:center;
        font-size:17px;
        font-weight:800;
        transition:transform .22s ease,background .22s ease,color .22s ease;
    }
    .faq-item[open] .faq-plus{transform:rotate(45deg);background:var(--brand);color:#fff;}
    .faq-answer{
        padding:0 22px 22px;
        font-size:14.3px;
        color:var(--muted);
        line-height:1.85;
    }

    /* ---------- 转化表单 ---------- */
    .join-wrap{
        display:grid;
        grid-template-columns:1fr 1.05fr;
        gap:48px;
        align-items:center;
        background:linear-gradient(135deg,#0b3a7d,#175fc4 60%,#2f86ea);
        border-radius:22px;
        padding:52px 48px;
        color:#fff;
        box-shadow:var(--shadow-lg);
        position:relative;
        overflow:hidden;
    }
    .join-wrap::after{
        content:"";
        position:absolute;
        right:-120px;bottom:-160px;
        width:420px;height:420px;
        border-radius:50%;
        background:radial-gradient(circle,rgba(255,255,255,.18),transparent 70%);
    }
    .join-copy{position:relative;z-index:2;}
    .join-copy h2{font-size:28px;font-weight:800;line-height:1.4;margin-bottom:14px;}
    .join-copy p{font-size:14.6px;line-height:1.85;color:rgba(255,255,255,.88);}
    .join-points{display:grid;gap:10px;margin-top:22px;}
    .join-points li{
        display:flex;
        align-items:center;
        gap:10px;
        font-size:14px;
        color:rgba(255,255,255,.92);
    }
    .join-points svg{width:17px;height:17px;color:#9ecbff;flex-shrink:0;}
    .join-form{
        position:relative;
        z-index:2;
        background:#fff;
        border-radius:16px;
        padding:28px 26px;
        color:var(--ink);
        box-shadow:0 16px 36px rgba(4,22,50,.22);
    }
    .field{margin-bottom:16px;}
    .field label{
        display:block;
        font-size:13.5px;
        font-weight:700;
        color:var(--ink);
        margin-bottom:7px;
    }
    .field input,.field select{
        width:100%;
        height:46px;
        padding:0 14px;
        border-radius:10px;
        border:1px solid var(--line);
        background:#f8fbff;
        font-size:14.5px;
        transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
    }
    .field input::placeholder{color:#9aa9bd;}
    .field input:focus,.field select:focus{
        border-color:var(--brand);
        background:#fff;
        box-shadow:0 0 0 4px rgba(19,87,184,.12);
        outline:none;
    }
    .form-note{
        font-size:12.6px;
        color:var(--muted);
        line-height:1.7;
        margin-top:12px;
    }
    .form-tip{
        margin-top:12px;
        font-size:13.5px;
        font-weight:700;
        color:var(--brand);
        min-height:20px;
    }
    .join-form .btn{width:100%;margin-top:4px;}

    /* ---------- 页脚 ---------- */
    .site-footer{
        margin-top:0;
        background:#0b1729;
        color:rgba(255,255,255,.78);
        padding:64px 0 0;
    }
    .footer-grid{
        display:grid;
        grid-template-columns:1.4fr 1fr 1fr;
        gap:44px;
        padding-bottom:44px;
        border-bottom:1px solid rgba(255,255,255,.10);
    }
    .footer-brand{
        display:flex;
        align-items:center;
        gap:10px;
        font-size:18px;
        font-weight:800;
        color:#fff;
        margin-bottom:16px;
    }
    .footer-brand .brand-mark{box-shadow:none;}
    .footer-about{
        font-size:14px;
        line-height:1.85;
        color:rgba(255,255,255,.62);
        max-width:380px;
    }
    .footer-col h4{
        font-size:14.5px;
        font-weight:800;
        color:#fff;
        margin-bottom:16px;
        letter-spacing:.5px;
    }
    .footer-col ul{display:grid;gap:10px;}
    .footer-col a{
        font-size:14px;
        color:rgba(255,255,255,.66);
        transition:color .2s ease;
    }
    .footer-col a:hover{color:#8fc0f5;}
    .footer-bottom{
        display:flex;
        flex-wrap:wrap;
        justify-content:space-between;
        gap:14px;
        padding:22px 0 28px;
        font-size:13px;
        color:rgba(255,255,255,.50);
    }
    .footer-bottom a{color:rgba(255,255,255,.62);}
    .footer-bottom a:hover{color:#8fc0f5;}

    /* ---------- 响应式 ---------- */
    @media (max-width:1024px){
        .hero-inner{grid-template-columns:1fr;gap:40px;}
        .hero h1{font-size:34px;}
        .hero{padding:132px 0 110px;}
        .metrics{grid-template-columns:repeat(2,1fr);}
        .grid-3{grid-template-columns:repeat(2,1fr);}
        .grid-4{grid-template-columns:repeat(2,1fr);}
        .session-list{grid-template-columns:1fr;}
        .timeline{grid-template-columns:repeat(2,1fr);gap:26px;}
        .timeline::before{display:none;}
        .timeline-item{padding-top:40px;}
        .news-layout{grid-template-columns:1fr;}
        .news-side{position:static;}
        .assure-bar{grid-template-columns:repeat(2,1fr);}
        .join-wrap{grid-template-columns:1fr;padding:40px 32px;gap:32px;}
    }
    @media (max-width:820px){
        .dock-nav{
            position:absolute;
            top:calc(100% + 10px);
            left:0;right:0;
            flex-direction:column;
            align-items:stretch;
            gap:4px;
            padding:12px;
            background:#fff;
            border:1px solid var(--line);
            border-radius:18px;
            box-shadow:var(--shadow-md);
            display:none;
        }
        .dock-nav.is-open{display:flex;}
        .nav-link{height:44px;justify-content:flex-start;padding:0 16px;}
        .nav-toggle{display:flex;}
        .dock{position:relative;padding:8px 10px 8px 14px;}
        .dock-right .btn{display:none;}
        .section{padding:58px 0;}
        .section-head h2{font-size:24px;}
        .compare{grid-template-columns:1fr;}
        .scene-grid{grid-template-columns:1fr;}
        .check-list{grid-template-columns:1fr;}
        .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
        .footer-about{max-width:none;}
    }
    @media (max-width:520px){
        body{font-size:15px;}
        .container{padding:0 16px;}
        .hero{padding:120px 0 92px;clip-path:polygon(0 0,100% 0,100% 94%,0 100%);}
        .hero h1{font-size:27px;line-height:1.34;}
        .hero-sub{font-size:14.5px;}
        .hero-actions .btn{width:100%;}
        .metrics{grid-template-columns:1fr;}
        .grid-3,.grid-4,.grid-2{grid-template-columns:1fr;}
        .timeline{grid-template-columns:1fr;}
        .news-item{grid-template-columns:1fr;}
        .news-thumb{aspect-ratio:16/9;}
        .assure-bar{grid-template-columns:1fr;}
        .join-wrap{padding:32px 20px;border-radius:18px;}
        .join-copy h2{font-size:22px;}
        .join-form{padding:22px 18px;}
        .footer-grid{grid-template-columns:1fr;}
        .footer-bottom{flex-direction:column;}
        .section-head h2{font-size:22px;}
        .metric-num{font-size:29px;}
    }

/* roulang page: article */
:root{
  --brand:#1357b8;
  --brand-deep:#0b3a7d;
  --brand-light:#2f86ea;
  --brand-soft:#e9f1fc;
  --accent:#e9a63a;
  --ink:#101c30;
  --muted:#5c6d85;
  --line:#e3ebf6;
  --bg:#f5f8fd;
  --surface:#ffffff;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 2px 10px rgba(16,40,80,.06);
  --shadow-md:0 10px 26px rgba(16,40,80,.10);
  --shadow-lg:0 18px 42px rgba(16,40,80,.14);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15.5px;
  line-height:1.75;
  color:var(--ink);
  background:var(--surface);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.32;letter-spacing:.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;height:auto;}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input,select,textarea{font:inherit;color:inherit;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:3px solid rgba(47,134,234,.45);
  outline-offset:2px;
  border-radius:8px;
}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- 浮动 Dock 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  padding:16px 20px 0;
  pointer-events:none;
  transition:padding .25s ease;
}
.site-header.is-scrolled{padding-top:10px;}
.dock{
  position:relative;
  pointer-events:auto;
  max-width:var(--container);
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:18px;
  padding:10px 12px 10px 18px;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled .dock{box-shadow:var(--shadow-md);}
.brand{
  display:flex;align-items:center;gap:10px;flex-shrink:0;
  font-weight:800;letter-spacing:.5px;color:var(--brand-deep);font-size:17px;
}
.brand-mark{
  width:34px;height:34px;display:grid;place-items:center;border-radius:11px;
  background:linear-gradient(140deg,var(--brand),var(--brand-light));
  color:#fff;font-size:16px;font-weight:800;
  box-shadow:0 6px 14px rgba(19,87,184,.28);
}
.dock-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:999px;
  font-size:14.5px;font-weight:600;color:var(--muted);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.active{color:var(--brand-deep);background:var(--brand-soft);}
.dock-right{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:50%;
  border:1px solid var(--line);
  align-items:center;justify-content:center;color:var(--brand-deep);
}
.nav-toggle svg{width:20px;height:20px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:10px;
  font-weight:700;font-size:14.5px;letter-spacing:.3px;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:999px;}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-light));
  color:#fff;box-shadow:0 8px 20px rgba(19,87,184,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(19,87,184,.34);}
.btn-primary:active{transform:translateY(0);}
.btn-light{background:#fff;color:var(--brand-deep);box-shadow:0 10px 24px rgba(9,32,68,.20);}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(9,32,68,.26);}
.btn-ghost{border:1px solid rgba(19,87,184,.28);color:var(--brand);background:rgba(255,255,255,.7);}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px);}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;overflow:hidden;
  padding:142px 0 92px;
  background:linear-gradient(135deg,#0b3a7d 0%,#1357b8 58%,#2f86ea 100%);
  color:#fff;
}
.article-hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.18;mix-blend-mode:luminosity;
}
.article-hero::after{
  content:"";position:absolute;right:-150px;top:-130px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.20),rgba(255,255,255,0) 70%);
}
.article-hero-inner{position:relative;z-index:2;max-width:920px;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:18px;}
.crumbs a{transition:color .2s ease;}
.crumbs a:hover{color:#fff;}
.crumb-current{color:rgba(255,255,255,.95);font-weight:600;}
.article-title{
  font-size:36px;line-height:1.34;letter-spacing:.4px;
  text-shadow:0 3px 18px rgba(4,22,50,.28);
}
.article-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.meta-pill{
  padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);
  color:rgba(255,255,255,.94);
}

/* ---------- 正文 ---------- */
.article-section{padding:0 0 78px;background:var(--surface);}
.article-shell{
  position:relative;max-width:900px;margin:-52px auto 0;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:var(--shadow-lg);
  padding:36px 44px 44px;
}
.article-cover{border-radius:14px;overflow:hidden;margin-bottom:30px;border:1px solid var(--line);}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.prose{font-size:15.8px;line-height:1.92;color:#20304a;}
.prose > * + *{margin-top:18px;}
.prose p{margin:0;}
.prose h2{
  font-size:23px;line-height:1.45;color:var(--ink);
  padding-left:14px;border-left:4px solid var(--brand);
  margin-top:34px;
}
.prose h3{font-size:18.5px;color:var(--brand-deep);margin-top:26px;}
.prose ul{list-style:disc;padding-left:1.4em;}
.prose ol{list-style:decimal;padding-left:1.4em;}
.prose li{margin:8px 0;}
.prose strong{color:var(--brand-deep);}
.prose a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.prose a:hover{color:var(--brand-deep);}
.prose img{border-radius:12px;margin:22px 0;border:1px solid var(--line);}
.prose blockquote{
  margin:24px 0;padding:16px 22px;
  background:var(--brand-soft);
  border-left:4px solid var(--brand);
  border-radius:12px;color:var(--brand-deep);
}
.prose table{width:100%;border-collapse:collapse;font-size:14.5px;}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.prose th{background:var(--brand-soft);color:var(--brand-deep);}
.empty-state{text-align:center;padding:56px 20px;}
.empty-state h2{font-size:24px;margin-bottom:12px;}
.empty-state p{color:var(--muted);margin-bottom:24px;}

/* ---------- 区块通用 ---------- */
.section{padding:78px 0;}
.section-alt{background:var(--bg);}
.section-head{max-width:740px;margin-bottom:38px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:1.4px;
  color:var(--brand);margin-bottom:12px;
}
.kicker::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand);}
.section-title{font-size:28px;color:var(--ink);}
.section-desc{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.86;}

/* ---------- 网格与卡片 ---------- */
.grid{display:grid;gap:22px;}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr));}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  padding:26px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dcf6;}
.card-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);margin-bottom:16px;
}
.card-icon svg{width:22px;height:22px;}
.card h3{font-size:17.5px;margin-bottom:10px;color:var(--ink);}
.card p{color:var(--muted);font-size:14.6px;line-height:1.82;}
.tag{
  display:inline-flex;align-items:center;
  margin-top:16px;padding:4px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:12px;font-weight:700;
}

/* ---------- 数据看板 ---------- */
.stat-band{
  position:relative;overflow:hidden;border-radius:20px;
  padding:46px 44px;
  background:linear-gradient(135deg,#0b3a7d 0%,#1357b8 58%,#2f86ea 100%);
  color:#fff;
  box-shadow:var(--shadow-md);
}
.stat-band-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.15;}
.stat-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.stat-num{font-size:33px;font-weight:800;letter-spacing:.5px;line-height:1.2;}
.stat-label{margin-top:8px;font-size:13.5px;color:rgba(255,255,255,.80);}
.stat-note{
  position:relative;z-index:2;margin-top:28px;padding-top:18px;
  border-top:1px solid rgba(255,255,255,.18);
  font-size:13px;line-height:1.85;color:rgba(255,255,255,.76);
}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);padding:26px 22px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dcf6;}
.step-num{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  font-weight:800;color:#fff;margin-bottom:16px;
  background:linear-gradient(135deg,var(--brand),var(--brand-light));
  box-shadow:0 6px 14px rgba(19,87,184,.24);
}
.step h3{font-size:16.5px;margin-bottom:8px;}
.step p{color:var(--muted);font-size:14.4px;line-height:1.82;}

/* ---------- 误区 ---------- */
.mistakes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.mistake{
  display:flex;gap:14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-left:4px solid var(--accent);
  border-radius:12px;
  padding:22px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.mistake:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.mistake-dot{
  flex:0 0 26px;width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;
  background:rgba(233,166,58,.16);color:#b57a16;
  font-weight:800;font-size:14px;line-height:1;
}
.mistake h3{font-size:16px;margin-bottom:6px;}
.mistake p{color:var(--muted);font-size:14.4px;line-height:1.8;}

/* ---------- FAQ ---------- */
.faq{max-width:880px;margin:0 auto;display:grid;gap:14px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item:hover{border-color:#c9dcf6;box-shadow:var(--shadow-md);}
.faq-item summary{
  list-style:none;cursor:pointer;
  padding:20px 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:700;color:var(--brand);
  transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{padding:0 26px 22px;color:var(--muted);font-size:14.8px;line-height:1.9;}

/* ---------- 转化条 ---------- */
.join-band{
  position:relative;overflow:hidden;
  border-radius:22px;
  padding:50px 48px;
  display:grid;grid-template-columns:1.5fr .5fr;gap:32px;align-items:center;
  background:linear-gradient(120deg,#0b3a7d 0%,#1357b8 58%,#2f86ea 100%);
  color:#fff;
  box-shadow:var(--shadow-md);
}
.join-band-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.16;}
.join-inner{position:relative;z-index:2;}
.join-band h2{font-size:26px;line-height:1.4;}
.join-band p{margin-top:14px;font-size:14.8px;line-height:1.88;color:rgba(255,255,255,.86);max-width:640px;}
.join-actions{position:relative;z-index:2;display:flex;flex-direction:column;gap:12px;align-items:stretch;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0a1526;color:#b9c9de;padding:58px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;color:#fff;font-size:17px;margin-bottom:16px;}
.footer-about{font-size:14px;line-height:1.9;color:#93a7c1;max-width:440px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#9fb2ca;transition:color .2s ease;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:38px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:#7f93ad;
}
.footer-bottom a{color:#9fb2ca;}
.footer-bottom a:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .article-title{font-size:31px;}
  .grid-4,.stat-grid,.steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .join-band{grid-template-columns:1fr;padding:40px 34px;}
  .join-actions{flex-direction:row;justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:860px){
  .site-header{padding:10px 14px 0;}
  .dock{padding:8px 10px 8px 14px;gap:12px;}
  .dock-nav{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    margin-left:0;padding:12px;
    background:#fff;border:1px solid var(--line);border-radius:18px;
    box-shadow:var(--shadow-md);
  }
  .dock-nav.open{display:flex;}
  .nav-link{height:42px;justify-content:flex-start;padding:0 14px;border-radius:10px;}
  .nav-toggle{display:inline-flex;}
  .dock-right .btn{display:none;}
  .article-hero{padding:118px 0 84px;}
  .article-shell{padding:28px 24px 34px;border-radius:18px;}
  .section{padding:58px 0;}
  .section-title{font-size:24px;}
  .stat-band{padding:34px 26px;}
  .grid-2,.grid-3,.grid-4,.mistakes,.steps,.stat-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .article-title{font-size:25px;line-height:1.4;}
  .brand-name{font-size:16px;}
  .article-hero{padding:108px 0 76px;}
  .article-shell{margin-top:-40px;padding:22px 18px 28px;}
  .prose{font-size:15.2px;}
  .prose h2{font-size:20px;}
  .prose h3{font-size:17px;}
  .section{padding:48px 0;}
  .section-title{font-size:21px;}
  .card,.step,.mistake{padding:20px;}
  .join-band{padding:30px 22px;}
  .join-actions{flex-direction:column;}
  .btn{width:100%;}
  .meta-pill{font-size:12px;padding:5px 12px;}
}

/* roulang page: category1 */
:root{
  --brand:#1357b8;
  --brand-deep:#0b3a7d;
  --brand-light:#2f86ea;
  --brand-soft:#e9f1fc;
  --accent:#e9a63a;
  --ink:#101c30;
  --muted:#5c6d85;
  --line:#e3ebf6;
  --bg:#f5f8fd;
  --surface:#ffffff;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 2px 10px rgba(16,40,80,.06);
  --shadow-md:0 10px 26px rgba(16,40,80,.10);
  --shadow-lg:0 18px 42px rgba(16,40,80,.14);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15.5px;
  line-height:1.75;
  color:var(--ink);
  background:var(--surface);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;height:auto;}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input,select,textarea{font:inherit;color:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(47,134,234,.45);
  outline-offset:2px;
  border-radius:6px;
}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- 浮动 Dock 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  padding:16px 20px 0;pointer-events:none;transition:padding .25s ease;
}
.site-header.is-scrolled{padding-top:10px;}
.site-header.is-scrolled .dock{box-shadow:var(--shadow-md);}
.dock{
  position:relative;
  display:flex;align-items:center;gap:16px;
  width:100%;max-width:var(--container);margin:0 auto;
  padding:10px 12px 10px 18px;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);
  border:1px solid rgba(227,235,246,.9);
  border-radius:18px;
  box-shadow:var(--shadow-sm);
  pointer-events:auto;
  transition:box-shadow .25s ease;
}
.brand{
  display:flex;align-items:center;gap:10px;flex-shrink:0;
  font-weight:800;letter-spacing:.5px;color:var(--brand-deep);font-size:17px;
}
.brand-mark{
  width:34px;height:34px;display:grid;place-items:center;border-radius:11px;
  background:linear-gradient(140deg,var(--brand),var(--brand-light));
  color:#fff;font-size:16px;font-weight:800;box-shadow:0 6px 14px rgba(19,87,184,.28);
}
.dock-nav{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1;}
.nav-link{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:999px;
  font-size:14.5px;font-weight:600;color:var(--muted);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.active{color:var(--brand-deep);background:var(--brand-soft);}
.dock-right{display:flex;align-items:center;gap:8px;margin-left:auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:50%;
  border:1px solid var(--line);align-items:center;justify-content:center;color:var(--brand-deep);
}
.nav-toggle svg{width:20px;height:20px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:10px;
  font-weight:700;font-size:14.5px;letter-spacing:.3px;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:999px;}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-light));
  color:#fff;box-shadow:0 8px 20px rgba(19,87,184,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(19,87,184,.34);}
.btn-primary:active{transform:translateY(0);}
.btn-light{background:#fff;color:var(--brand-deep);box-shadow:0 10px 24px rgba(9,32,68,.20);}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(9,32,68,.26);}
.btn-ghost{
  border:1px solid rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.10);
}
.btn-ghost:hover{background:rgba(255,255,255,.20);transform:translateY(-2px);}
.btn-outline{
  border:1px solid rgba(19,87,184,.28);color:var(--brand);background:#fff;
}
.btn-outline:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px);}

/* ---------- 分类页 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:136px 0 118px;
  background:var(--brand-deep);color:#fff;
}
.page-hero-media{
  position:absolute;inset:0;background-size:cover;background-position:center;opacity:.30;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(8,32,74,.96) 0%,rgba(11,58,125,.88) 48%,rgba(19,87,184,.60) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.70);margin-bottom:18px;
}
.crumb a{color:rgba(255,255,255,.86);}
.crumb a:hover{color:#fff;text-decoration:underline;}
.crumb span{color:rgba(255,255,255,.5);}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);
  font-size:13px;font-weight:600;letter-spacing:1px;margin-bottom:20px;
}
.page-hero h1{
  font-size:40px;line-height:1.28;font-weight:800;letter-spacing:.4px;
  margin-bottom:18px;text-shadow:0 3px 18px rgba(4,22,50,.28);
}
.hero-sub{font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.90);max-width:600px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.hero-chips li{
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  color:rgba(255,255,255,.94);background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);
}
.quick-panel{
  background:#fff;color:var(--ink);border-radius:18px;padding:24px;
  box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.6);
}
.quick-title{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;color:var(--brand-deep);}
.quick-title svg{width:20px;height:20px;color:var(--brand);}
.quick-sub{font-size:13px;color:var(--muted);margin-top:6px;}
.quick-list{margin-top:16px;border-top:1px solid var(--line);}
.quick-row{
  display:flex;align-items:flex-start;gap:12px;
  padding:13px 0;border-bottom:1px dashed var(--line);
}
.quick-row:last-child{border-bottom:none;}
.quick-dot{
  width:8px;height:8px;border-radius:50%;background:var(--brand-light);
  margin-top:9px;flex-shrink:0;
}
.quick-k{font-size:14px;font-weight:700;color:var(--ink);}
.quick-v{font-size:13.2px;color:var(--muted);line-height:1.7;}
.quick-foot{
  margin-top:16px;padding:12px 14px;border-radius:var(--radius-sm);
  background:var(--brand-soft);color:var(--brand-deep);font-size:13px;font-weight:600;
}

/* ---------- 指标看板 ---------- */
.metrics-wrap{position:relative;z-index:3;margin-top:-56px;}
.metrics-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-md);
}
.metric{background:#fff;padding:26px 22px;}
.metric-num{font-size:30px;font-weight:800;color:var(--brand);line-height:1.2;letter-spacing:.5px;}
.metric-label{font-size:14px;font-weight:700;margin-top:6px;color:var(--ink);}
.metric-note{font-size:13px;color:var(--muted);margin-top:4px;line-height:1.6;}

/* ---------- 通用 section ---------- */
.section{padding:78px 0;}
.section-alt{background:var(--bg);}
.section-tight{padding:64px 0;}
.section-head{max-width:780px;margin-bottom:38px;}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1.8px;color:var(--brand);
}
.section-eyebrow::before{content:"";width:22px;height:2px;background:var(--brand-light);border-radius:2px;}
.section-title{font-size:29px;line-height:1.36;font-weight:800;margin-top:12px;color:var(--ink);}
.section-desc{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.8;}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:34px;}
.head-row .section-head{margin-bottom:0;}

/* ---------- 卡片与网格 ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe0f6;}
.rule-card{padding:26px 24px;}
.card-icon{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);margin-bottom:16px;
}
.card-icon svg{width:22px;height:22px;}
.card-title{font-size:17px;font-weight:800;color:var(--ink);margin-bottom:8px;line-height:1.45;}
.card-text{font-size:14.2px;color:var(--muted);line-height:1.78;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-deep);font-size:12.5px;font-weight:700;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}

/* ---------- 补牌流程 ---------- */
.flow{display:grid;gap:16px;}
.flow-step{
  display:grid;grid-template-columns:56px 1fr;gap:20px;align-items:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 24px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.flow-step:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#cfe0f6;}
.flow-num{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-light));
  color:#fff;font-weight:800;font-size:16px;box-shadow:0 8px 18px rgba(19,87,184,.24);
}
.flow-title{font-size:16.5px;font-weight:800;margin-bottom:6px;}
.flow-text{font-size:14.2px;color:var(--muted);line-height:1.78;}

/* ---------- 对比表 ---------- */
.table-wrap{overflow-x:auto;border-radius:var(--radius);}
.compare-table{
  width:100%;min-width:620px;border-collapse:separate;border-spacing:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);font-size:14.3px;
}
.compare-table th,.compare-table td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top;}
.compare-table thead th{background:var(--brand-soft);color:var(--brand-deep);font-weight:700;font-size:14px;}
.compare-table tbody tr:last-child td{border-bottom:none;}
.compare-table tbody tr:hover td{background:#fafcff;}
.cell-good{color:var(--brand-deep);font-weight:700;}
.cell-bad{color:#8a6a2c;font-weight:600;}

/* ---------- 里程碑时间线 ---------- */
.timeline{position:relative;padding-left:28px;}
.timeline::before{
  content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--brand-light),var(--brand-soft));border-radius:2px;
}
.timeline-item{position:relative;padding-bottom:26px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:"";position:absolute;left:-28px;top:7px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:3px solid var(--brand);box-shadow:0 0 0 4px rgba(47,134,234,.10);
}
.timeline-label{font-size:13px;font-weight:700;letter-spacing:1px;color:var(--brand);}
.timeline-title{font-size:16.5px;font-weight:800;margin:4px 0 6px;}
.timeline-text{font-size:14.2px;color:var(--muted);line-height:1.78;}

/* ---------- CMS 资讯列表 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe0f6;}
.post-thumb{position:relative;overflow:hidden;}
.post-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12.5px;color:var(--muted);}
.post-title{font-size:16.5px;font-weight:800;line-height:1.5;color:var(--ink);}
.post-card:hover .post-title{color:var(--brand-deep);}
.post-excerpt{font-size:13.8px;color:var(--muted);line-height:1.75;}
.post-more{margin-top:auto;font-size:13.5px;font-weight:700;color:var(--brand);}
.empty-note{
  padding:34px 26px;border:1px dashed var(--line);border-radius:var(--radius);
  background:#fff;color:var(--muted);font-size:14.5px;text-align:center;
}

/* ---------- 保障说明 ---------- */
.assure-card{padding:24px 22px;display:flex;gap:16px;align-items:flex-start;}
.assure-icon{
  width:40px;height:40px;flex-shrink:0;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);
}
.assure-icon svg{width:20px;height:20px;}

/* ---------- FAQ ---------- */
.faq-split{display:grid;grid-template-columns:.85fr 1.15fr;gap:40px;align-items:start;}
.quick-answer{display:grid;gap:14px;}
.qa-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;box-shadow:var(--shadow-sm);
}
.qa-q{font-size:14.5px;font-weight:800;color:var(--brand-deep);margin-bottom:6px;}
.qa-a{font-size:13.8px;color:var(--muted);line-height:1.78;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  box-shadow:var(--shadow-sm);margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#cfe0f6;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:15px;font-weight:700;text-align:left;color:var(--ink);
  min-height:44px;
}
.faq-icon{
  width:22px;height:22px;flex-shrink:0;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;
  font-size:15px;font-weight:800;transition:transform .25s ease,background .25s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--brand);color:#fff;}
.faq-a{padding:0 20px 18px;font-size:14.2px;color:var(--muted);line-height:1.82;display:none;}
.faq-item.open .faq-a{display:block;}

/* ---------- 转化表单 ---------- */
.join-panel{
  display:grid;grid-template-columns:1fr 1fr;gap:44px;
  background:linear-gradient(135deg,#0b3a7d 0%,#1357b8 62%,#2f86ea 100%);
  border-radius:22px;padding:46px;color:#fff;
  box-shadow:var(--shadow-lg);position:relative;overflow:hidden;
}
.join-panel::after{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.20),rgba(255,255,255,0) 70%);
}
.join-left{position:relative;z-index:2;}
.join-title{font-size:28px;font-weight:800;line-height:1.36;margin-bottom:14px;}
.join-text{font-size:14.6px;line-height:1.85;color:rgba(255,255,255,.88);max-width:440px;}
.join-points{margin-top:24px;display:grid;gap:10px;}
.join-points li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.90);}
.join-points li::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);
  margin-top:9px;flex-shrink:0;
}
.join-form{position:relative;z-index:2;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);border-radius:16px;padding:24px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:700;margin-bottom:7px;color:rgba(255,255,255,.92);}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;border-radius:10px;
  border:1px solid rgba(255,255,255,.30);background:rgba(255,255,255,.12);color:#fff;
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:rgba(255,255,255,.62);}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:#fff;background:rgba(255,255,255,.18);box-shadow:0 0 0 3px rgba(255,255,255,.18);
}
.field select option{color:#101c30;}
.form-note{font-size:12.5px;color:rgba(255,255,255,.72);margin-top:12px;line-height:1.7;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0a1b33;color:rgba(255,255,255,.72);padding:58px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:42px;
  padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-weight:800;font-size:17px;color:#fff;margin-bottom:14px;
}
.footer-about{font-size:14px;line-height:1.82;max-width:360px;color:rgba(255,255,255,.66);}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700;}
.footer-col li{margin-bottom:10px;font-size:14px;}
.footer-col a{color:rgba(255,255,255,.72);transition:color .2s ease;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding:20px 0 28px;font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.72);}
.footer-bottom a:hover{color:#fff;text-decoration:underline;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .page-hero{padding:126px 0 108px;}
  .page-hero h1{font-size:34px;}
  .grid-3,.post-grid{grid-template-columns:repeat(2,1fr);}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .metrics-grid{grid-template-columns:repeat(2,1fr);}
  .faq-split{grid-template-columns:1fr;gap:28px;}
  .join-panel{grid-template-columns:1fr;gap:30px;padding:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:860px){
  .site-header{padding:12px 14px 0;}
  .dock{padding:8px 10px 8px 14px;gap:10px;}
  .dock-nav{
    display:none;
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;margin-left:0;
    background:#fff;border:1px solid var(--line);border-radius:16px;
    padding:10px;box-shadow:var(--shadow-md);
  }
  .dock-nav.is-open{display:flex;}
  .nav-link{height:44px;justify-content:flex-start;padding:0 14px;border-radius:10px;}
  .nav-toggle{display:inline-flex;}
  .brand-name{font-size:16px;}
  .section{padding:58px 0;}
  .section-title{font-size:24px;}
  .metrics-wrap{margin-top:-40px;}
  .metric-num{font-size:25px;}
  .flow-step{grid-template-columns:1fr;gap:14px;}
  .join-title{font-size:23px;}
}
@media (max-width:640px){
  .container{padding:0 18px;}
  .page-hero{padding:112px 0 96px;}
  .page-hero h1{font-size:27px;}
  .hero-sub{font-size:14.5px;}
  .hero-actions{gap:10px;}
  .btn-lg{height:48px;padding:0 20px;font-size:15px;}
  .grid-2,.grid-3,.grid-4,.post-grid{grid-template-columns:1fr;}
  .metrics-grid{grid-template-columns:1fr;}
  .metric{padding:20px 18px;}
  .section{padding:48px 0;}
  .section-title{font-size:22px;}
  .rule-card,.assure-card{padding:20px 18px;}
  .join-panel{padding:26px 20px;border-radius:18px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:26px;}
  .footer-bottom{flex-direction:column;}
  .quick-panel{padding:20px;}
  .faq-q{padding:16px;font-size:14.5px;}
  .faq-a{padding:0 16px 16px;}
}

/* roulang page: category3 */
:root{
 --brand:#1357b8;
 --brand-deep:#0b3a7d;
 --brand-light:#2f86ea;
 --brand-soft:#e9f1fc;
 --accent:#e9a63a;
 --ink:#101c30;
 --muted:#5c6d85;
 --line:#e3ebf6;
 --bg:#f5f8fd;
 --surface:#ffffff;
 --radius:14px;
 --radius-sm:10px;
 --shadow-sm:0 2px 10px rgba(16,40,80,.06);
 --shadow-md:0 10px 26px rgba(16,40,80,.10);
 --shadow-lg:0 18px 42px rgba(16,40,80,.14);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:15.5px;
 line-height:1.78;
 color:var(--ink);
 background:var(--surface);
 -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;height:auto;}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input,select,textarea{font:inherit;color:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
 outline:3px solid rgba(47,134,234,.45);
 outline-offset:2px;
 border-radius:6px;
}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- 浮动 Dock 导航 ---------- */
.site-header{
 position:fixed;
 top:0;left:0;right:0;
 z-index:60;
 padding:16px 20px 0;
 pointer-events:none;
 transition:padding .25s ease;
}
.site-header.is-scrolled{padding-top:10px;}
.dock{
 pointer-events:auto;
 position:relative;
 max-width:var(--container);
 margin:0 auto;
 display:flex;
 align-items:center;
 gap:12px;
 padding:10px 14px;
 border-radius:999px;
 background:rgba(255,255,255,.94);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 border:1px solid var(--line);
 box-shadow:var(--shadow-sm);
 transition:box-shadow .25s ease;
}
.site-header.is-scrolled .dock{box-shadow:var(--shadow-md);}
.brand{
 display:flex;
 align-items:center;
 gap:10px;
 flex-shrink:0;
 font-weight:800;
 letter-spacing:.5px;
 color:var(--brand-deep);
 font-size:17px;
}
.brand-mark{
 width:34px;height:34px;
 display:grid;place-items:center;
 border-radius:11px;
 background:linear-gradient(140deg,var(--brand),var(--brand-light));
 color:#fff;
 font-size:16px;
 font-weight:800;
 box-shadow:0 6px 14px rgba(19,87,184,.28);
}
.dock-nav{
 display:flex;
 align-items:center;
 gap:4px;
 margin-left:8px;
}
.nav-link{
 display:inline-flex;
 align-items:center;
 height:38px;
 padding:0 16px;
 border-radius:999px;
 font-size:14.5px;
 font-weight:600;
 color:var(--muted);
 transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.active{color:var(--brand-deep);background:var(--brand-soft);}
.dock-right{margin-left:auto;display:flex;align-items:center;gap:10px;}
.nav-toggle{
 display:none;
 width:42px;height:42px;
 border-radius:50%;
 border:1px solid var(--line);
 align-items:center;
 justify-content:center;
 color:var(--brand-deep);
 transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:var(--brand-soft);border-color:var(--brand-light);}
.nav-toggle svg{width:20px;height:20px;}

/* ---------- 按钮 ---------- */
.btn{
 display:inline-flex;
 align-items:center;
 justify-content:center;
 gap:8px;
 height:44px;
 padding:0 22px;
 border-radius:10px;
 font-weight:700;
 font-size:14.5px;
 letter-spacing:.3px;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
 white-space:nowrap;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:999px;}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}
.btn-primary{
 background:linear-gradient(135deg,var(--brand),var(--brand-light));
 color:#fff;
 box-shadow:0 8px 20px rgba(19,87,184,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(19,87,184,.34);}
.btn-primary:active{transform:translateY(0);}
.btn-light{
 background:#fff;
 color:var(--brand-deep);
 box-shadow:0 10px 24px rgba(9,32,68,.20);
}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(9,32,68,.26);}
.btn-ghost{
 border:1px solid rgba(255,255,255,.46);
 color:#fff;
 background:rgba(255,255,255,.12);
}
.btn-ghost:hover{background:rgba(255,255,255,.22);transform:translateY(-2px);}
.btn-outline{
 border:1px solid rgba(19,87,184,.28);
 color:var(--brand);
 background:rgba(255,255,255,.7);
}
.btn-outline:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px);}

/* ---------- Hero Bento ---------- */
.hero{
 position:relative;
 padding:150px 0 92px;
 overflow:hidden;
 background:linear-gradient(135deg,#0b3a7d 0%,#1357b8 55%,#2f86ea 100%);
 color:#fff;
}
.hero-bg{
 position:absolute;inset:0;
 background-size:cover;
 background-position:center;
 opacity:.18;
 mix-blend-mode:luminosity;
}
.hero::after{
 content:"";
 position:absolute;
 right:-160px;top:-150px;
 width:560px;height:560px;
 border-radius:50%;
 background:radial-gradient(circle,rgba(255,255,255,.22),rgba(255,255,255,0) 70%);
}
.hero-inner{position:relative;z-index:2;}
.bento{display:grid;grid-template-columns:1.62fr 1fr;gap:18px;}
.bento-main{
 background:rgba(255,255,255,.11);
 border:1px solid rgba(255,255,255,.24);
 border-radius:20px;
 padding:38px 36px;
 backdrop-filter:blur(6px);
 -webkit-backdrop-filter:blur(6px);
}
.hero-eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 14px;border-radius:999px;
 background:rgba(255,255,255,.16);
 border:1px solid rgba(255,255,255,.28);
 font-size:13px;font-weight:600;letter-spacing:1px;
 margin-bottom:20px;
}
.bento-main h1{
 font-size:38px;line-height:1.28;font-weight:800;
 letter-spacing:.5px;margin:0 0 18px;
 text-shadow:0 3px 18px rgba(4,22,50,.26);
}
.hero-sub{
 font-size:15.5px;line-height:1.85;
 color:rgba(255,255,255,.9);
 margin:0;
 max-width:620px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin:28px 0 0;padding:0;list-style:none;}
.hero-chips li{
 padding:6px 14px;border-radius:999px;
 font-size:13px;font-weight:600;
 color:rgba(255,255,255,.94);
 background:rgba(255,255,255,.12);
 border:1px solid rgba(255,255,255,.22);
}
.bento-side{display:grid;grid-template-rows:1fr 1fr;gap:18px;}
.bento-mini{
 background:rgba(255,255,255,.94);
 color:var(--ink);
 border-radius:18px;
 padding:24px 22px;
 box-shadow:0 14px 32px rgba(6,26,58,.22);
}
.bento-mini .mini-label{
 display:block;font-size:12.5px;font-weight:700;
 letter-spacing:1px;color:var(--brand);
 margin-bottom:10px;
}
.bento-mini .mini-num{
 display:block;font-size:30px;font-weight:800;
 color:var(--brand-deep);line-height:1.1;
}
.bento-mini p{font-size:13.5px;color:var(--muted);margin:8px 0 0;line-height:1.7;}
.bento-strip{
 grid-column:1/-1;
 display:flex;align-items:center;gap:20px;flex-wrap:wrap;
 background:rgba(255,255,255,.10);
 border:1px solid rgba(255,255,255,.22);
 border-radius:16px;
 padding:18px 26px;
}
.bento-strip strong{font-size:15px;letter-spacing:.5px;}
.bento-strip span{font-size:14px;color:rgba(255,255,255,.82);flex:1;min-width:200px;}

/* ---------- 板块通用 ---------- */
.section{padding:86px 0;}
.section-alt{background:var(--bg);}
.section-tight{padding-top:60px;padding-bottom:60px;}
.sec-head{max-width:740px;margin-bottom:42px;}
.sec-tag{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;font-weight:700;letter-spacing:.5px;
 color:var(--brand);background:var(--brand-soft);
 padding:5px 14px;border-radius:999px;
}
.sec-head h2{
 font-size:29px;line-height:1.36;font-weight:800;
 letter-spacing:.3px;margin:16px 0 12px;
}
.sec-head p{color:var(--muted);font-size:15px;margin:0;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-head.center p{margin:0 auto;}

/* ---------- 指标看板 ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.metric-card{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:26px 24px;
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe0f7;}
.metric-num{display:block;font-size:32px;font-weight:800;color:var(--brand);letter-spacing:.5px;line-height:1.15;}
.metric-label{display:block;font-size:14px;font-weight:700;margin-top:8px;}
.metric-card p{font-size:13.5px;color:var(--muted);margin:8px 0 0;}

/* ---------- 形态矩阵 ---------- */
.shape-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.shape-card{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:26px 24px;
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.shape-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe0f7;}
.shape-icon{
 width:44px;height:44px;border-radius:12px;
 background:var(--brand-soft);color:var(--brand);
 display:grid;place-items:center;margin-bottom:16px;
}
.shape-icon svg{width:22px;height:22px;}
.shape-card h3{font-size:17px;font-weight:800;margin:0 0 10px;letter-spacing:.3px;}
.shape-card p{font-size:14px;color:var(--muted);margin:0 0 14px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
 font-size:12px;font-weight:700;
 padding:3px 10px;border-radius:999px;
 background:var(--brand-soft);color:var(--brand-deep);
}
.tag-warm{background:#fdf1dc;color:#9a6413;}

/* ---------- 对比 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.compare-panel{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:30px 28px;
 box-shadow:var(--shadow-sm);
}
.compare-panel.warn{background:#fdfbf5;border-color:#f2e5ca;}
.compare-panel h3{font-size:18px;font-weight:800;margin:0 0 6px;}
.compare-panel .panel-note{font-size:13.5px;color:var(--muted);margin:0 0 18px;}
.compare-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px;}
.compare-list li{
 display:flex;gap:12px;align-items:flex-start;
 font-size:14.5px;line-height:1.7;
}
.dot{
 flex:none;width:22px;height:22px;border-radius:50%;
 display:grid;place-items:center;font-size:12px;font-weight:800;
 background:var(--brand-soft);color:var(--brand);margin-top:2px;
}
.compare-panel.warn .dot{background:#f6e7c9;color:#9a6413;}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:36px;max-width:860px;}
.timeline::before{
 content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;
 background:linear-gradient(180deg,var(--brand-light),var(--brand-soft));
}
.tl-item{position:relative;margin-bottom:30px;}
.tl-item:last-child{margin-bottom:0;}
.tl-item::before{
 content:"";position:absolute;left:-31px;top:7px;
 width:12px;height:12px;border-radius:50%;
 background:#fff;border:3px solid var(--brand);
}
.tl-item h3{font-size:16.5px;font-weight:800;margin:0 0 6px;}
.tl-item p{font-size:14.5px;color:var(--muted);margin:0;}

/* ---------- 资讯列表 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.post-card{
 display:block;
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:24px 22px;
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe0f7;}
.post-cat{
 display:inline-block;font-size:12px;font-weight:700;
 padding:3px 10px;border-radius:999px;
 background:var(--brand-soft);color:var(--brand-deep);
 margin-bottom:12px;
}
.post-card h3{font-size:16px;font-weight:800;line-height:1.5;margin:0 0 10px;}
.post-card p{font-size:13.5px;color:var(--muted);margin:0 0 14px;}
.post-date{font-size:12.5px;color:#8a9ab0;}
.empty-tip{
 text-align:center;color:var(--muted);font-size:14.5px;
 padding:36px 0;margin:0;
}

/* ---------- 保障 ---------- */
.guard-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.guard-card{
 background:var(--surface);
 border:1px solid var(--line);
 border-left:4px solid var(--brand-light);
 border-radius:var(--radius);
 padding:26px 24px;
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease;
}
.guard-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.guard-card h3{font-size:16.5px;font-weight:800;margin:0 0 10px;}
.guard-card p{font-size:14px;color:var(--muted);margin:0;}

/* ---------- 快速解答 ---------- */
.quick-list{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.quick-item{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius-sm);
 padding:20px 22px;
 box-shadow:var(--shadow-sm);
}
.quick-item h3{font-size:15px;font-weight:800;margin:0 0 8px;color:var(--brand-deep);}
.quick-item p{font-size:14px;color:var(--muted);margin:0;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;}
.faq-item{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius-sm);
 padding:0 22px;
 margin-bottom:12px;
 box-shadow:var(--shadow-sm);
 transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#cfe0f7;box-shadow:var(--shadow-md);}
.faq-item summary{
 cursor:pointer;padding:18px 0;
 font-size:15.5px;font-weight:700;
 list-style:none;
 display:flex;justify-content:space-between;align-items:center;gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"+";color:var(--brand);font-size:20px;font-weight:700;line-height:1;
}
.faq-item[open] summary::after{content:"−";}
.faq-item p{margin:0 0 20px;color:var(--muted);font-size:14.5px;}

/* ---------- 转化表单 ---------- */
.join-wrap{
 display:grid;grid-template-columns:.95fr 1.05fr;gap:36px;
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:20px;
 padding:42px 40px;
 box-shadow:var(--shadow-md);
}
.join-copy h2{font-size:26px;font-weight:800;line-height:1.4;margin:14px 0 12px;}
.join-copy p{font-size:14.5px;color:var(--muted);margin:0 0 20px;}
.join-points{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;}
.join-points li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink);}
.join-points .dot{background:var(--brand-soft);color:var(--brand);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:6px;}
.field.full{grid-column:1/-1;}
.field label{font-size:13.5px;font-weight:700;color:var(--brand-deep);}
.field input,.field select,.field textarea{
 border:1px solid var(--line);
 border-radius:10px;
 padding:11px 14px;
 font-size:14.5px;
 background:#fbfdff;
 min-height:44px;
 transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{min-height:96px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
 border-color:var(--brand-light);
 box-shadow:0 0 0 4px rgba(47,134,234,.14);
 outline:none;
 background:#fff;
}
.form-tip{font-size:12.5px;color:#8a9ab0;margin:12px 0 0;}
.form-actions{margin-top:20px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.form-ok{
 display:none;
 margin-top:14px;
 font-size:14px;
 color:var(--brand-deep);
 background:var(--brand-soft);
 border-radius:var(--radius-sm);
 padding:12px 16px;
}
.form-ok.show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{
 background:#0b1a30;
 color:#c7d4e6;
 padding:66px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:42px;}
.footer-brand{
 display:flex;align-items:center;gap:10px;
 font-weight:800;color:#fff;font-size:17px;
 letter-spacing:.5px;margin-bottom:16px;
}
.footer-about{
 font-size:14px;line-height:1.8;color:#9fb2ca;
 margin:0;max-width:420px;
}
.footer-col h4{
 font-size:14.5px;color:#fff;margin:0 0 16px;
 font-weight:700;letter-spacing:.5px;
}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:#9fb2ca;transition:color .2s ease;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
 border-top:1px solid rgba(255,255,255,.12);
 margin-top:46px;padding-top:22px;
 display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
 font-size:13px;color:#8194ad;
}
.footer-bottom p{margin:0;}
.footer-bottom a{color:#9fb2ca;}
.footer-bottom a:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
 .hero{padding:130px 0 78px;}
 .bento{grid-template-columns:1fr;}
 .bento-side{grid-template-columns:1fr 1fr;grid-template-rows:auto;}
 .bento-main h1{font-size:33px;}
 .metric-grid{grid-template-columns:repeat(2,1fr);}
 .shape-grid{grid-template-columns:repeat(2,1fr);}
 .post-grid{grid-template-columns:repeat(2,1fr);}
 .guard-grid{grid-template-columns:1fr;}
 .compare{grid-template-columns:1fr;}
 .join-wrap{grid-template-columns:1fr;padding:34px 28px;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
 .section{padding:70px 0;}
}
@media (max-width:900px){
 .dock-nav{
  position:absolute;
  top:calc(100% + 10px);
  left:0;right:0;
  flex-direction:column;
  align-items:stretch;
  gap:4px;
  padding:10px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--shadow-md);
  display:none;
  margin-left:0;
 }
 .dock-nav.is-open{display:flex;}
 .nav-link{height:44px;justify-content:center;border-radius:10px;}
 .nav-toggle{display:inline-flex;}
 .dock-right .btn-sm{display:none;}
}
@media (max-width:768px){
 .hero{padding:118px 0 64px;}
 .bento-main{padding:28px 22px;}
 .bento-main h1{font-size:27px;line-height:1.35;}
 .hero-sub{font-size:14.5px;}
 .bento-side{grid-template-columns:1fr;}
 .bento-strip{padding:16px 18px;gap:12px;}
 .bento-strip strong{font-size:14px;}
 .sec-head h2{font-size:24px;}
 .metric-grid{grid-template-columns:1fr 1fr;gap:14px;}
 .shape-grid{grid-template-columns:1fr;gap:16px;}
 .post-grid{grid-template-columns:1fr;gap:16px;}
 .quick-list{grid-template-columns:1fr;}
 .form-grid{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr;gap:28px;}
 .footer-bottom{flex-direction:column;gap:8px;}
 .section{padding:58px 0;}
 .container{padding:0 18px;}
}
@media (max-width:520px){
 .bento-main h1{font-size:23px;}
 .hero-actions .btn{width:100%;}
 .hero-chips li{font-size:12px;padding:5px 12px;}
 .metric-num{font-size:26px;}
 .join-wrap{padding:26px 20px;}
 .faq-item{padding:0 16px;}
 .faq-item summary{font-size:14.5px;padding:16px 0;}
 .compare-panel{padding:24px 20px;}
}

/* roulang page: category2 */
:root{
  --brand:#1357b8;
  --brand-deep:#0b3a7d;
  --brand-light:#2f86ea;
  --brand-soft:#e9f1fc;
  --accent:#e9a63a;
  --ink:#101c30;
  --muted:#5c6d85;
  --line:#e3ebf6;
  --bg:#f5f8fd;
  --surface:#ffffff;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 2px 10px rgba(16,40,80,.06);
  --shadow-md:0 10px 26px rgba(16,40,80,.10);
  --shadow-lg:0 18px 42px rgba(16,40,80,.14);
  --container:1180px;
}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15.5px;
  line-height:1.78;
  color:var(--ink);
  background:var(--surface);
  -webkit-font-smoothing:antialiased;
}
*{box-sizing:border-box;}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;height:auto;}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(47,134,234,.45);
  outline-offset:2px;
  border-radius:6px;
}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
/* ---------- 浮动 Dock 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  padding:16px 20px 0;
  pointer-events:none;
  transition:padding .25s ease;
}
.site-header.is-scrolled{padding-top:10px;}
.site-header.is-scrolled .dock{box-shadow:var(--shadow-md);}
.dock{
  pointer-events:auto;
  position:relative;
  display:flex;
  align-items:center;
  gap:14px;
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:8px 10px 8px 16px;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .25s ease;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  font-weight:800;
  letter-spacing:.5px;
  color:var(--brand-deep);
  font-size:17px;
}
.brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(140deg,var(--brand),var(--brand-light));
  color:#fff;
  font-size:16px;
  font-weight:800;
  box-shadow:0 6px 14px rgba(19,87,184,.28);
}
.dock-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:8px;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 16px;
  border-radius:999px;
  font-size:14.5px;
  font-weight:600;
  color:var(--muted);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.active{color:var(--brand-deep);background:var(--brand-soft);}
.dock-right{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:10px;
}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:50%;
  border:1px solid var(--line);
  align-items:center;
  justify-content:center;
  color:var(--brand-deep);
  transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:var(--brand-soft);border-color:var(--brand);}
.nav-toggle svg{width:20px;height:20px;}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:10px;
  font-weight:700;
  font-size:14.5px;
  letter-spacing:.3px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:999px;}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-light));
  color:#fff;
  box-shadow:0 8px 20px rgba(19,87,184,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(19,87,184,.34);}
.btn-primary:active{transform:translateY(0);}
.btn-light{
  background:#fff;
  color:var(--brand-deep);
  box-shadow:0 10px 24px rgba(9,32,68,.20);
}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(9,32,68,.26);}
.btn-ghost{
  border:1px solid rgba(19,87,184,.28);
  color:var(--brand);
  background:rgba(255,255,255,.7);
}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px);}
/* ---------- 分类页 Hero KV ---------- */
.hero{
  position:relative;
  overflow:hidden;
  color:#fff;
  padding:158px 0 0;
  background:
    linear-gradient(122deg,rgba(9,42,94,.95) 0%,rgba(19,87,184,.90) 55%,rgba(47,134,234,.80) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.hero-inner{
  position:relative;
  z-index:2;
  max-width:880px;
  padding-bottom:56px;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.28);
  font-size:13px;
  font-weight:600;
  letter-spacing:1px;
  margin-bottom:22px;
}
.hero h1{
  font-size:40px;
  line-height:1.28;
  font-weight:800;
  letter-spacing:.5px;
  margin-bottom:20px;
  text-shadow:0 3px 18px rgba(4,22,50,.28);
}
.hero-sub{
  font-size:16px;
  line-height:1.9;
  color:rgba(255,255,255,.92);
  max-width:720px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:30px;
}
.hero-chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:28px;
}
.hero-chips li{
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  color:rgba(255,255,255,.94);
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);
}
.hero-ticker{
  position:relative;
  z-index:2;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px 22px;
  padding:18px 24px;
  border-radius:16px 16px 0 0;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);
  border-bottom:none;
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  font-size:14px;
}
.ticker-label{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  border-radius:999px;
  background:#fff;
  color:var(--brand-deep);
  font-weight:700;
  font-size:12.5px;
  letter-spacing:.6px;
}
.ticker-topic{font-weight:700;color:#fff;}
.ticker-meta{color:rgba(255,255,255,.86);}
.ticker-time{
  margin-left:auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:rgba(255,255,255,.9);
}
.ticker-time b{
  font-variant-numeric:tabular-nums;
  font-size:17px;
  letter-spacing:1px;
  color:#fff;
}
/* ---------- 板块基础 ---------- */
.section{padding:74px 0;}
.section-alt{background:var(--bg);}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head .kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:1.2px;
  color:var(--brand-light);
  margin-bottom:12px;
}
.section-head .kicker::before{
  content:"";
  width:26px;height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-light));
}
.section-head h2{
  font-size:28px;
  line-height:1.35;
  font-weight:800;
  letter-spacing:.3px;
  color:var(--ink);
  margin-bottom:14px;
}
.section-head p{
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
}
.grid{display:grid;gap:20px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
/* ---------- 指标看板 ---------- */
.metric{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  padding:24px 22px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.metric:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfdff5;}
.metric-num{
  font-size:32px;
  font-weight:800;
  letter-spacing:.5px;
  color:var(--brand);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.metric-num small{font-size:15px;font-weight:700;color:var(--brand-deep);margin-left:4px;}
.metric-label{
  margin-top:6px;
  font-size:14px;
  font-weight:700;
  color:var(--ink);
}
.metric-desc{
  margin-top:8px;
  font-size:13.5px;
  line-height:1.75;
  color:var(--muted);
}
/* ---------- 卡片 ---------- */
.card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  padding:26px 24px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfdff5;}
.card-icon{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:12px;
  background:var(--brand-soft);
  color:var(--brand);
  margin-bottom:16px;
}
.card-icon svg{width:22px;height:22px;}
.card h3{
  font-size:17.5px;
  font-weight:800;
  color:var(--ink);
  margin-bottom:10px;
  line-height:1.45;
}
.card p{
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
}
.card-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:18px;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 11px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  color:var(--brand-deep);
  background:var(--brand-soft);
  border:1px solid rgba(19,87,184,.12);
}
.tag-accent{
  color:#8a5a08;
  background:#fdf3e1;
  border-color:rgba(233,166,58,.28);
}
/* ---------- 频道矩阵 ---------- */
.channel-card{
  display:flex;
  flex-direction:column;
  gap:10px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  padding:26px 24px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfdff5;}
.channel-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}
.channel-card h3{font-size:17.5px;font-weight:800;color:var(--ink);}
.channel-card p{font-size:14px;color:var(--muted);line-height:1.8;}
.channel-current{
  font-size:12.5px;
  font-weight:700;
  color:var(--brand);
  background:var(--brand-soft);
  border-radius:999px;
  padding:3px 10px;
}
.channel-go{
  margin-top:6px;
  font-size:13.5px;
  font-weight:700;
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.channel-card:hover .channel-go{color:var(--brand-deep);}
/* ---------- 结果对比 ---------- */
.compare-wrap{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:22px;
}
.compare-col{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  padding:28px 26px;
}
.compare-col.bad{border-color:#eef0f4;background:#fbfcfe;}
.compare-head{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:18px;
}
.compare-head span.dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 4px rgba(19,87,184,.12);
}
.compare-col.bad .compare-head span.dot{background:#9aa7ba;box-shadow:0 0 0 4px rgba(154,167,186,.16);}
.compare-head h3{font-size:17px;font-weight:800;color:var(--ink);}
.compare-list li{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  padding:12px 0;
  border-bottom:1px dashed var(--line);
  font-size:14px;
  color:var(--muted);
}
.compare-list li:last-child{border-bottom:none;}
.compare-list b{
  font-size:16px;
  font-weight:800;
  color:var(--brand-deep);
  font-variant-numeric:tabular-nums;
  white-space:nowrap;
}
.compare-col.bad .compare-list b{color:#77869b;}
.compare-note{
  margin-top:22px;
  padding:18px 22px;
  border-radius:var(--radius-sm);
  background:var(--brand-soft);
  border:1px solid rgba(19,87,184,.12);
  font-size:14px;
  line-height:1.8;
  color:var(--brand-deep);
}
/* ---------- 里程碑 ---------- */
.milestone-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  counter-reset:step;
}
.milestone{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  padding:26px 22px 24px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.milestone:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfdff5;}
.milestone::before{
  counter-increment:step;
  content:"0" counter(step);
  display:block;
  font-size:13px;
  font-weight:800;
  letter-spacing:1px;
  color:var(--brand-light);
  margin-bottom:12px;
}
.milestone h3{font-size:16.5px;font-weight:800;color:var(--ink);margin-bottom:6px;}
.milestone .range{
  display:inline-block;
  font-size:12.5px;
  font-weight:700;
  color:var(--brand-deep);
  background:var(--brand-soft);
  border-radius:999px;
  padding:3px 10px;
  margin-bottom:12px;
}
.milestone p{font-size:13.8px;color:var(--muted);line-height:1.8;}
/* ---------- 资讯列表 ---------- */
.post-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.post-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  padding:24px 22px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfdff5;}
.post-card .post-cat{
  display:inline-flex;
  padding:3px 11px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:700;
  color:var(--brand-deep);
  background:var(--brand-soft);
  margin-bottom:12px;
}
.post-card h3{
  font-size:16px;
  font-weight:800;
  line-height:1.55;
  color:var(--ink);
  margin-bottom:10px;
}
.post-card p{
  font-size:13.8px;
  line-height:1.8;
  color:var(--muted);
}
.post-meta{
  margin-top:16px;
  font-size:12.5px;
  color:#8797ad;
  display:flex;
  align-items:center;
  gap:8px;
}
.empty-note{
  padding:30px 26px;
  border-radius:var(--radius);
  background:var(--surface);
  border:1px dashed var(--line);
  color:var(--muted);
  font-size:14px;
}
/* ---------- 平台保障 ---------- */
.guard-item{
  display:flex;
  gap:16px;
  padding:24px 22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.guard-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfdff5;}
.guard-item .card-icon{margin-bottom:0;flex-shrink:0;}
.guard-item h3{font-size:16px;font-weight:800;color:var(--ink);margin-bottom:6px;}
.guard-item p{font-size:13.8px;color:var(--muted);line-height:1.8;}
/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  box-shadow:var(--shadow-sm);
  padding:0 22px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#cfdff5;box-shadow:var(--shadow-md);}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 0;
  font-size:15.5px;
  font-weight:700;
  color:var(--ink);
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex-shrink:0;
  width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:50%;
  background:var(--brand-soft);
  color:var(--brand);
  font-weight:800;
  font-size:16px;
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.faq-item[open] summary::after{
  content:"−";
  background:var(--brand);
  color:#fff;
}
.faq-item .faq-body{
  padding:0 0 18px;
  font-size:14.2px;
  line-height:1.85;
  color:var(--muted);
}
/* ---------- 转化区 ---------- */
.join{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius);
  padding:44px 40px;
  color:#fff;
  background:
    linear-gradient(120deg,rgba(11,58,125,.94),rgba(19,87,184,.88) 58%,rgba(47,134,234,.82)),
    url('/assets/images/backpic/back-6.webp') center/cover no-repeat;
  box-shadow:var(--shadow-lg);
}
.join-grid{
  display:grid;
  grid-template-columns:1fr 1.05fr;
  gap:40px;
  align-items:start;
}
.join h2{
  font-size:27px;
  font-weight:800;
  line-height:1.4;
  margin-bottom:14px;
}
.join p{
  font-size:14.5px;
  line-height:1.9;
  color:rgba(255,255,255,.90);
}
.join-points{
  display:grid;
  gap:10px;
  margin-top:22px;
}
.join-points li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:rgba(255,255,255,.92);
}
.join-points li::before{
  content:"";
  flex-shrink:0;
  width:7px;height:7px;
  margin-top:9px;
  border-radius:50%;
  background:var(--accent);
}
.join-form{
  background:rgba(255,255,255,.97);
  border-radius:var(--radius);
  padding:26px 24px;
  box-shadow:var(--shadow-lg);
  color:var(--ink);
}
.form-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
}
.field{display:flex;flex-direction:column;gap:6px;}
.field.full{grid-column:1 / -1;}
.field label{
  font-size:13px;
  font-weight:700;
  color:var(--brand-deep);
  letter-spacing:.3px;
}
.field input,
.field select,
.field textarea{
  width:100%;
  padding:11px 14px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:#fbfcfe;
  font-size:14px;
  color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7;}
.field input:hover,
.field select:hover,
.field textarea:hover{border-color:#cfdff5;}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  background:#fff;
  border-color:var(--brand-light);
  box-shadow:0 0 0 4px rgba(47,134,234,.14);
}
.form-actions{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  margin-top:16px;
  flex-wrap:wrap;
}
.form-note{
  font-size:12.8px;
  color:var(--muted);
  line-height:1.7;
  margin-top:12px;
}
/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:0;
  background:#0a1b33;
  color:rgba(255,255,255,.80);
  padding:56px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr;
  gap:40px;
  padding-bottom:36px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:800;
  color:#fff;
  margin-bottom:14px;
}
.footer-about{
  font-size:13.8px;
  line-height:1.85;
  color:rgba(255,255,255,.66);
  max-width:420px;
}
.footer-col h4{
  font-size:14.5px;
  font-weight:800;
  color:#fff;
  margin-bottom:14px;
  letter-spacing:.5px;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{
  font-size:13.8px;
  color:rgba(255,255,255,.70);
  transition:color .2s ease,transform .2s ease;
  display:inline-block;
}
.footer-col a:hover{color:#fff;transform:translateX(3px);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  padding-top:20px;
  font-size:13px;
  color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.75);}
.footer-bottom a:hover{color:#fff;text-decoration:underline;}
/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero h1{font-size:34px;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .milestone-grid{grid-template-columns:repeat(2,1fr);}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .join-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:860px){
  .site-header{padding:10px 14px 0;}
  .dock{padding:8px 10px;border-radius:22px;gap:10px;}
  .brand{font-size:15.5px;}
  .nav-toggle{display:inline-flex;}
  .dock-nav{
    position:absolute;
    top:calc(100% + 10px);
    left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    margin:0;
    padding:10px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:16px;
    box-shadow:var(--shadow-md);
    display:none;
  }
  .dock-nav.is-open{display:flex;}
  .nav-link{height:44px;justify-content:flex-start;border-radius:10px;padding:0 14px;}
  .hero{padding-top:126px;}
  .hero h1{font-size:29px;line-height:1.34;}
  .hero-sub{font-size:15px;}
  .hero-inner{padding-bottom:40px;}
  .hero-ticker{border-radius:14px 14px 0 0;padding:16px 18px;font-size:13.4px;}
  .ticker-time{margin-left:0;width:100%;}
  .section{padding:56px 0;}
  .section-head h2{font-size:23px;}
  .compare-wrap{grid-template-columns:1fr;}
  .join{padding:30px 22px;}
  .join h2{font-size:22px;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .grid-2,.grid-3,.grid-4,.milestone-grid,.post-grid{grid-template-columns:1fr;}
  .hero{padding-top:118px;}
  .hero h1{font-size:25px;}
  .hero-actions .btn{width:100%;}
  .hero-chips li{font-size:12px;padding:5px 12px;}
  .metric-num{font-size:27px;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;}
  .compare-list li{flex-direction:column;gap:4px;}
  .btn-lg{height:48px;font-size:15px;}
}