/* roulang page: index */
:root{
        --bg-0:#04060E;
        --bg-1:#080D1B;
        --bg-2:#0D1428;
        --c-primary:#17E1C8;
        --c-primary-hi:#4DF3DE;
        --c-primary-dk:#0BA99A;
        --c-accent:#FF3D8B;
        --c-violet:#8B5CF6;
        --t-1:#E9F2FF;
        --t-2:#9FB3D1;
        --t-3:#63779A;
        --glass-bg:rgba(20,30,54,.55);
        --glass-bd:rgba(120,220,255,.14);
        --glass-blur:18px;
        --ok:#22C55E;
        --warn:#FFB020;
        --err:#FF4D5E;
        --r-card:18px;
        --r-panel:22px;
        --r-img:14px;
        --shadow-card:0 18px 40px rgba(0,0,0,.45);
        --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
        --font-num:"Inter","HarmonyOS Sans",system-ui,sans-serif;
    }

    *,*::before,*::after{box-sizing:border-box;}
    html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
    body{
        margin:0;
        background:var(--bg-0);
        color:var(--t-1);
        font-family:var(--font-cn);
        font-size:16px;
        line-height:1.9;
        font-weight:400;
        overflow-x:hidden;
        -webkit-font-smoothing:antialiased;
    }
    body::before{
        content:"";
        position:fixed;
        inset:0;
        pointer-events:none;
        z-index:0;
        background:
            radial-gradient(680px 420px at 12% -6%, rgba(23,225,200,.13), transparent 62%),
            radial-gradient(620px 400px at 92% 8%, rgba(255,61,139,.10), transparent 60%),
            radial-gradient(700px 520px at 50% 108%, rgba(139,92,246,.08), transparent 66%);
    }
    body::after{
        content:"";
        position:fixed;
        inset:0;
        pointer-events:none;
        z-index:0;
        opacity:.05;
        background-image:linear-gradient(rgba(255,255,255,.6) 1px, transparent 1px),
                         linear-gradient(90deg, rgba(255,255,255,.6) 1px, transparent 1px);
        background-size:64px 64px;
    }
    img{max-width:100%;display:block;border:0;}
    a{color:inherit;text-decoration:none;}
    button,input,select,textarea{font:inherit;color:inherit;}
    button{cursor:pointer;background:none;border:0;}
    ul,ol{margin:0;padding:0;list-style:none;}
    h1,h2,h3,h4,p{margin:0;}
    h1,h2,h3{line-height:1.25;font-weight:700;letter-spacing:-.01em;}

    .wrap{position:relative;z-index:1;}
    .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
    .section{padding:96px 0;position:relative;}
    .section--tight{padding:66px 0;}

    .num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

    /* ============ 顶栏 ============ */
    .topbar{
        position:sticky;top:0;z-index:60;
        height:50px;
        background:linear-gradient(90deg,#050912,#0A1122 55%,#050912);
        border-bottom:1px solid rgba(23,225,200,.16);
    }
    .topbar-inner{
        height:100%;display:flex;align-items:center;gap:18px;justify-content:space-between;
    }
    .topbar-label{font-size:14px;color:var(--c-primary);font-weight:600;display:flex;align-items:center;gap:8px;}
    .dot-live{width:7px;height:7px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 10px rgba(255,61,139,.85);animation:pulse 1.8s infinite ease-in-out;}
    @keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.82);}}
    .clock{display:flex;gap:8px;align-items:center;}
    .clock-cell{
        min-width:54px;padding:3px 8px;border-radius:8px;
        background:rgba(23,225,200,.07);
        border:1px solid rgba(120,220,255,.16);
        text-align:center;
    }
    .clock-cell b{display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:17px;font-weight:700;color:var(--c-accent);line-height:1.2;}
    .clock-cell span{display:block;font-size:11px;color:var(--t-3);line-height:1.4;}
    .topbar-btn{
        font-size:13px;font-weight:600;color:#04121A;background:var(--c-primary);
        padding:7px 16px;border-radius:999px;transition:.25s;
        box-shadow:0 0 16px rgba(23,225,200,.35);
    }
    .topbar-btn:hover{background:var(--c-primary-hi);box-shadow:0 0 26px rgba(23,225,200,.55);}

    /* ============ 导航 ============ */
    .site-header{
        position:sticky;top:50px;z-index:55;
        background:rgba(6,10,20,.82);
        backdrop-filter:blur(14px);
        -webkit-backdrop-filter:blur(14px);
        border-bottom:1px solid transparent;
        border-image:linear-gradient(90deg,transparent,#17E1C8,#FF3D8B,transparent) 1;
        transition:background .3s,box-shadow .3s;
    }
    .site-header.scrolled{background:rgba(5,8,17,.94);box-shadow:0 12px 30px rgba(0,0,0,.5);}
    .nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px;transition:height .3s;}
    .site-header.scrolled .nav-inner{height:60px;}
    .brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;}
    .brand-mark{
        width:30px;height:30px;border-radius:9px;position:relative;
        background:linear-gradient(135deg,var(--c-primary),var(--c-violet));
        box-shadow:0 0 18px rgba(23,225,200,.55);
    }
    .brand-mark::after{content:"";position:absolute;inset:8px;border-radius:4px;background:#04060E;}
    .brand-text{font-size:19px;font-weight:700;letter-spacing:.02em;color:var(--t-1);}
    .brand-text em{font-style:normal;color:var(--c-primary);}

    .nav-links{display:flex;align-items:center;gap:4px;}
    .nav-links a{
        position:relative;display:flex;align-items:center;height:44px;padding:0 14px;
        font-size:15px;color:var(--t-2);font-weight:400;transition:color .22s;
    }
    .nav-links a::after{
        content:"";position:absolute;left:14px;right:14px;bottom:6px;height:1px;
        background:rgba(23,225,200,.35);transform:scaleX(0);transform-origin:left;transition:transform .25s;
    }
    .nav-links a:hover{color:var(--t-1);}
    .nav-links a:hover::after{transform:scaleX(1);}
    .nav-links a.active{color:var(--c-primary);font-weight:600;text-shadow:0 0 12px rgba(23,225,200,.5);}
    .nav-links a.active::after{
        transform:scaleX(1);height:2px;bottom:4px;
        background:var(--c-primary);box-shadow:0 0 10px rgba(23,225,200,.85);
    }
    .nav-actions{display:flex;align-items:center;gap:10px;}
    .btn{
        display:inline-flex;align-items:center;justify-content:center;gap:8px;
        min-height:44px;padding:0 22px;border-radius:999px;
        font-size:15px;font-weight:700;letter-spacing:.01em;transition:.25s;
        white-space:nowrap;
    }
    .btn-primary{
        color:#04121A;background:linear-gradient(120deg,var(--c-primary),var(--c-primary-hi));
        box-shadow:0 0 0 1px rgba(23,225,200,.35),0 0 22px rgba(23,225,200,.30);
        position:relative;overflow:hidden;
    }
    .btn-primary::after{
        content:"";position:absolute;top:0;left:-60%;width:45%;height:100%;
        background:linear-gradient(100deg,transparent,rgba(255,255,255,.62),transparent);
        animation:sweep 3.2s infinite;
    }
    @keyframes sweep{0%{left:-60%;}55%{left:130%;}100%{left:130%;}}
    .btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(23,225,200,.5),0 0 40px rgba(23,225,200,.55);}
    .btn-primary:active{transform:translateY(1px);}
    .btn-ghost{
        color:var(--c-primary);border:1px solid rgba(23,225,200,.45);background:transparent;
    }
    .btn-ghost:hover{background:rgba(23,225,200,.12);border-color:var(--c-primary);}
    .btn-text{color:var(--c-primary);font-weight:600;padding:0 4px;min-height:44px;display:inline-flex;align-items:center;gap:6px;}
    .btn-text .arw{transition:transform .25s;}
    .btn-text:hover .arw{transform:translateX(4px);}
    .btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
    .btn:focus-visible,.nav-links a:focus-visible,.topbar-btn:focus-visible,.icon-btn:focus-visible{
        outline:2px solid var(--c-primary);outline-offset:2px;border-radius:8px;
    }
    .icon-btn{
        width:44px;height:44px;border-radius:12px;display:none;align-items:center;justify-content:center;
        border:1px solid rgba(120,220,255,.18);color:var(--t-1);background:rgba(20,30,54,.5);
    }
    .icon-btn:hover{border-color:var(--c-primary);color:var(--c-primary);}
    .burger{display:none;flex-direction:column;gap:5px;}
    .burger span{display:block;width:20px;height:2px;background:var(--t-1);border-radius:2px;transition:.25s;}
    .drawer{
        position:fixed;inset:0;z-index:90;background:rgba(4,6,14,.97);
        backdrop-filter:blur(16px);transform:translateY(-100%);transition:transform .34s ease;
        display:flex;flex-direction:column;padding:20px 20px 30px;overflow-y:auto;
    }
    .drawer.open{transform:translateY(0);}
    .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
    .drawer a.drawer-link{
        display:flex;align-items:center;min-height:50px;padding:0 6px;font-size:17px;
        color:var(--t-2);border-bottom:1px solid rgba(120,220,255,.10);
    }
    .drawer a.drawer-link.active{color:var(--c-primary);font-weight:600;}
    .drawer-foot{margin-top:auto;padding-top:22px;}

    /* ============ Hero ============ */
    .hero{padding:74px 0 70px;position:relative;}
    .hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:44px;align-items:center;}
    .panel{
        background:var(--glass-bg);
        border:1px solid var(--glass-bd);
        border-radius:var(--r-panel);
        backdrop-filter:blur(var(--glass-blur));
        -webkit-backdrop-filter:blur(var(--glass-blur));
        box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
    }
    .hero-card{padding:34px;}
    .badge{
        display:inline-flex;align-items:center;gap:8px;
        font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--c-primary);
        padding:6px 14px;border-radius:999px;
        border:1px solid rgba(23,225,200,.35);background:rgba(23,225,200,.08);
    }
    h1.hero-title{
        font-size:clamp(34px,4.4vw,52px);
        margin:20px 0 16px;letter-spacing:-.02em;
        background:linear-gradient(96deg,#FFFFFF 8%,#BFF6EF 48%,#4DF3DE 92%);
        -webkit-background-clip:text;background-clip:text;color:transparent;
    }
    .hero-sub{font-size:18px;color:var(--t-2);line-height:1.85;max-width:560px;}
    .hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
    .hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:34px;padding-top:26px;border-top:1px solid rgba(120,220,255,.12);}
    .hero-stats div b{display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:24px;font-weight:700;color:var(--c-primary);}
    .hero-stats div span{font-size:13px;color:var(--t-3);}
    .hero-visual{position:relative;}
    .hero-visual img{
        width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-img);
        border:1px solid rgba(23,225,200,.25);
        box-shadow:0 0 42px rgba(23,225,200,.18),0 22px 50px rgba(0,0,0,.55);
    }
    .hero-visual::after{
        content:"";position:absolute;inset:0;border-radius:var(--r-img);pointer-events:none;
        background:linear-gradient(180deg,rgba(4,6,14,0) 40%,rgba(4,6,14,.62) 100%);
    }
    .hero-visual .float-tag{
        position:absolute;left:16px;bottom:16px;z-index:2;
        font-size:13px;color:var(--t-1);padding:7px 14px;border-radius:999px;
        background:rgba(8,13,27,.78);border:1px solid rgba(120,220,255,.2);
        backdrop-filter:blur(8px);
    }

    /* ============ 数据条 ============ */
    .stat-strip{
        display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
        background:rgba(120,220,255,.12);
        border:1px solid var(--glass-bd);border-radius:var(--r-card);overflow:hidden;
    }
    .stat-strip div{background:var(--bg-1);padding:22px 20px;}
    .stat-strip b{display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:22px;font-weight:700;color:var(--t-1);}
    .stat-strip span{font-size:13px;color:var(--t-3);}

    /* ============ 通用板块头 ============ */
    .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
    .sec-tag{
        display:inline-block;font-size:12px;font-weight:600;letter-spacing:.12em;
        color:var(--c-accent);margin-bottom:12px;position:relative;padding-left:26px;
    }
    .sec-tag::before{
        content:"";position:absolute;left:0;top:50%;width:18px;height:1px;
        background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
    }
    h2.sec-title{font-size:32px;letter-spacing:-.015em;}
    .sec-desc{margin-top:12px;color:var(--t-2);font-size:15.5px;max-width:640px;}
    .sec-line{
        height:1px;margin-bottom:36px;
        background:linear-gradient(90deg,transparent,#17E1C8,#FF3D8B,transparent);
        opacity:.45;
    }

    /* ============ 亮点（左大右三小） ============ */
    .feat-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:22px;}
    .feat-main{padding:34px;display:flex;flex-direction:column;justify-content:space-between;min-height:340px;position:relative;overflow:hidden;}
    .feat-main .num-big{
        font-family:var(--font-num);font-size:64px;font-weight:700;line-height:1;
        color:transparent;-webkit-text-stroke:1px rgba(23,225,200,.45);
    }
    .feat-main h3{font-size:22px;margin:20px 0 12px;}
    .feat-main p{color:var(--t-2);font-size:15px;line-height:1.9;}
    .feat-side{display:grid;gap:22px;}
    .feat-item{padding:24px 26px;display:flex;gap:18px;align-items:flex-start;transition:.28s;}
    .feat-item:hover{border-color:rgba(23,225,200,.42);transform:translateY(-4px);}
    .feat-item .idx{
        font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--c-primary);
        border:1px solid rgba(23,225,200,.32);border-radius:8px;padding:3px 9px;flex:0 0 auto;
    }
    .feat-item h3{font-size:17px;margin-bottom:8px;}
    .feat-item p{font-size:14px;color:var(--t-2);line-height:1.85;}

    /* ============ Bento 图墙 ============ */
    .bento{display:grid;grid-template-columns:repeat(6,1fr);grid-auto-rows:148px;gap:16px;}
    .bento-item{position:relative;overflow:hidden;border-radius:var(--r-img);border:1px solid rgba(120,220,255,.12);}
    .bento-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
    .bento-item:hover{border-color:rgba(23,225,200,.6);box-shadow:0 0 26px rgba(23,225,200,.25);}
    .bento-item:hover img{transform:scale(1.05);}
    .bento-item .cap{
        position:absolute;inset:auto 0 0 0;padding:38px 20px 18px;
        background:linear-gradient(180deg,rgba(4,6,14,0),rgba(4,6,14,.9));
    }
    .bento-item .cap b{display:block;font-size:16px;font-weight:600;color:#fff;}
    .bento-item .cap span{font-size:13px;color:var(--t-2);}
    .b1{grid-column:span 3;grid-row:span 2;}
    .b2{grid-column:span 3;grid-row:span 1;}
    .b3{grid-column:span 3;grid-row:span 1;}
    .b4,.b5,.b6{grid-column:span 2;grid-row:span 1;}

    /* ============ 卡片 ============ */
    .card{
        background:var(--bg-1);
        border:1px solid rgba(120,220,255,.12);
        border-radius:var(--r-card);
        box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.05);
        transition:.28s;position:relative;
    }
    .card:hover{transform:translateY(-4px);border-color:rgba(23,225,200,.45);}
    .tag{
        display:inline-block;font-size:12px;font-weight:600;color:var(--c-primary);
        padding:3px 10px;border-radius:8px;border:1px solid rgba(23,225,200,.34);
        background:rgba(23,225,200,.07);
    }

    /* ============ CMS 列表 ============ */
    .news-grid{display:grid;grid-template-columns:1.32fr 1fr;gap:22px;}
    .news-big{overflow:hidden;display:flex;flex-direction:column;}
    .news-big .thumb{position:relative;overflow:hidden;border-radius:var(--r-card) var(--r-card) 0 0;aspect-ratio:16/9;}
    .news-big .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
    .news-big:hover .thumb img{transform:scale(1.04);}
    .news-big .body{padding:26px 28px 28px;display:flex;flex-direction:column;flex:1;}
    .news-big h3{font-size:22px;margin:14px 0 12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
    .news-big p{color:var(--t-2);font-size:14.5px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
    .news-side{display:grid;gap:22px;grid-auto-rows:1fr;}
    .news-item{padding:22px 24px;display:flex;flex-direction:column;justify-content:center;position:relative;}
    .news-item::before{
        content:"";position:absolute;left:0;top:22px;width:0;height:26px;
        background:var(--c-primary);border-radius:0 2px 2px 0;box-shadow:0 0 12px rgba(23,225,200,.8);
        transition:width .28s;
    }
    .news-item:hover::before{width:2px;}
    .news-item h3{font-size:17px;margin:12px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
    .news-item p{font-size:14px;color:var(--t-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
    .meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--t-3);}
    .meta .sep{width:1px;height:12px;background:rgba(120,220,255,.22);}
    .stretch{
        position:absolute;inset:0;z-index:3;border-radius:var(--r-card);
    }
    .empty-state{
        grid-column:1/-1;padding:66px 24px;text-align:center;border-radius:var(--r-card);
        border:1px dashed rgba(120,220,255,.22);background:var(--bg-1);
    }
    .empty-state .ico{
        width:52px;height:52px;margin:0 auto 16px;border-radius:14px;
        border:1px solid rgba(120,220,255,.25);display:flex;align-items:center;justify-content:center;
        color:var(--t-3);
    }
    .empty-state p{color:var(--t-3);font-size:15px;}

    /* ============ CTA 表单 ============ */
    .cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;padding:44px;}
    .cta-list{margin-top:24px;display:grid;gap:14px;}
    .cta-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--t-2);}
    .cta-list li::before{
        content:"";width:7px;height:7px;border-radius:50%;margin-top:11px;flex:0 0 auto;
        background:var(--c-primary);box-shadow:0 0 10px rgba(23,225,200,.9);
    }
    .form-grid{display:grid;gap:18px;}
    .field label{display:block;font-size:13px;color:var(--t-2);margin-bottom:8px;font-weight:600;}
    .field input,.field select{
        width:100%;height:48px;padding:0 14px;border-radius:12px;
        background:rgba(8,13,27,.85);color:var(--t-1);
        border:1px solid rgba(120,220,255,.18);transition:.24s;
    }
    .field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#17E1C8 50%),linear-gradient(135deg,#17E1C8 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
    .field input::placeholder{color:var(--t-3);}
    .field input:focus,.field select:focus{
        outline:none;border-color:var(--c-primary);
        box-shadow:0 0 0 3px rgba(23,225,200,.16),0 0 18px rgba(23,225,200,.22);
    }
    .check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--t-2);line-height:1.7;}
    .check input{width:18px;height:18px;margin-top:3px;accent-color:var(--c-primary);}
    .form-note{font-size:12.5px;color:var(--t-3);}

    /* ============ FAQ ============ */
    .faq-list{display:grid;gap:14px;max-width:920px;}
    .faq-item{
        background:var(--bg-1);border:1px solid rgba(120,220,255,.12);
        border-radius:var(--r-card);overflow:hidden;transition:.26s;position:relative;
    }
    .faq-item::before{
        content:"";position:absolute;left:0;top:0;bottom:0;width:0;
        background:var(--c-primary);box-shadow:0 0 14px rgba(23,225,200,.85);transition:width .24s;
    }
    .faq-item.open{border-color:rgba(23,225,200,.45);}
    .faq-item.open::before{width:3px;}
    .faq-q{
        width:100%;display:flex;align-items:center;gap:16px;text-align:left;
        padding:20px 24px;font-size:16.5px;font-weight:600;color:var(--t-1);
    }
    .faq-q .no{font-family:var(--font-num);font-size:13px;color:var(--c-primary);font-weight:700;flex:0 0 auto;}
    .faq-q .sign{
        margin-left:auto;width:26px;height:26px;border-radius:8px;flex:0 0 auto;
        border:1px solid rgba(120,220,255,.28);display:flex;align-items:center;justify-content:center;
        color:var(--c-primary);font-size:17px;line-height:1;transition:.26s;
    }
    .faq-item.open .faq-q .sign{background:rgba(23,225,200,.14);transform:rotate(45deg);}
    .faq-a{
        max-height:0;overflow:hidden;transition:max-height .24s ease-out;
    }
    .faq-a p{padding:0 24px 22px 58px;font-size:15px;color:var(--t-2);line-height:1.9;}

    /* ============ 页脚 ============ */
    .site-footer{
        margin-top:40px;background:var(--bg-1);position:relative;
        border-top:1px solid transparent;
        border-image:linear-gradient(90deg,transparent,#17E1C8,#FF3D8B,transparent) 1;
    }
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px;}
    .footer-grid h4{font-size:13px;letter-spacing:.1em;color:var(--c-primary);font-weight:600;margin-bottom:20px;}
    .footer-grid p{font-size:14px;color:var(--t-2);line-height:1.9;}
    .footer-links{display:grid;gap:12px;}
    .footer-links a{font-size:14px;color:var(--t-2);transition:.22s;display:inline-block;}
    .footer-links a:hover{color:var(--c-primary);transform:translateX(2px);}
    .footer-bottom{
        border-top:1px solid rgba(120,220,255,.12);padding:22px 0 34px;
        display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
        font-size:13px;color:var(--t-3);
    }

    /* ============ 进场动效 ============ */
    .reveal{opacity:0;transform:translateY(16px);transition:opacity .52s ease,transform .52s ease;}
    .reveal.in{opacity:1;transform:none;}

    /* ============ 响应式 ============ */
    @media (max-width:1200px){
        .container{padding:0 22px;}
    }
    @media (max-width:1024px){
        .section{padding:72px 0;}
        .hero{padding:56px 0 52px;}
        .hero-grid{grid-template-columns:1fr;gap:32px;}
        .feat-grid{grid-template-columns:1fr;}
        .news-grid{grid-template-columns:1fr;}
        .cta-grid{grid-template-columns:1fr;gap:34px;padding:34px;}
        .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
        .bento{grid-auto-rows:170px;}
        .b1{grid-column:span 6;grid-row:span 2;}
        .b2,.b3{grid-column:span 3;}
        .b4,.b5,.b6{grid-column:span 3;}
    }
    @media (max-width:900px){
        .nav-links{display:none;}
        .icon-btn{display:flex;}
        .nav-actions .btn-primary{display:none;}
        .hero-stats{grid-template-columns:repeat(3,1fr);gap:10px;}
        .stat-strip{grid-template-columns:1fr 1fr;}
        h2.sec-title{font-size:26px;}
        .hero-card{padding:26px;}
        .feat-main{padding:26px;min-height:auto;}
    }
    @media (max-width:640px){
        body{font-size:15.5px;}
        .container{padding:0 16px;}
        .section{padding:52px 0;}
        .topbar-inner{gap:10px;}
        .clock-cell{min-width:44px;padding:2px 6px;}
        .clock-cell b{font-size:15px;}
        .clock-cell.sec-cell{display:none;}
        .topbar-label span.txt{display:none;}
        .topbar-btn{padding:6px 12px;font-size:12px;}
        .nav-inner{height:62px;}
        h1.hero-title{font-size:28px;}
        .hero-sub{font-size:16px;}
        .hero-cta{flex-direction:column;}
        .hero-cta .btn{width:100%;}
        .stat-strip{grid-template-columns:1fr;}
        .bento{grid-auto-rows:180px;}
        .b1,.b2,.b3,.b4,.b5,.b6{grid-column:span 6;grid-row:span 1;}
        .b1{grid-row:span 2;}
        .news-item{padding:20px;}
        .cta-grid{padding:24px;}
        .faq-q{padding:18px;font-size:15.5px;}
        .faq-a p{padding:0 18px 20px 18px;}
        .footer-grid{grid-template-columns:1fr;gap:30px;padding:44px 0 30px;}
        .footer-bottom{flex-direction:column;gap:8px;}
        .sec-head{margin-bottom:28px;}
    }
    @media (prefers-reduced-motion:reduce){
        *{animation:none !important;transition:none !important;}
        .reveal{opacity:1;transform:none;}
        html{scroll-behavior:auto;}
    }

/* roulang page: article */
:root{
    --bg-0:#04060E; --bg-1:#080D1B; --bg-2:#0D1428;
    --c-primary:#17E1C8; --c-primary-hi:#4DF3DE; --c-primary-dk:#0BA99A;
    --c-accent:#FF3D8B; --c-violet:#8B5CF6;
    --t-1:#E9F2FF; --t-2:#9FB3D1; --t-3:#63779A;
    --glass-bg:rgba(20,30,54,.55); --glass-bd:rgba(120,220,255,.14); --glass-blur:18px;
    --ok:#22C55E; --warn:#FFB020; --err:#FF4D5E;
    --r-card:18px; --r-panel:22px; --r-pill:999px; --r-tag:8px; --r-img:14px;
    --sh-card:0 18px 40px rgba(0,0,0,.45);
    --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    --font-num:"Inter","HarmonyOS Sans",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body.site-body{
    margin:0;padding:0;background:var(--bg-0);color:var(--t-1);
    font-family:var(--font-cn);font-size:16px;line-height:1.9;font-weight:400;
    overflow-x:hidden;position:relative;min-height:100vh;
}
body.site-body::before{
    content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
    background:
        radial-gradient(640px 420px at 10% 6%, rgba(23,225,200,.10), transparent 70%),
        radial-gradient(560px 420px at 90% 22%, rgba(255,61,139,.08), transparent 72%),
        linear-gradient(rgba(255,255,255,.026) 1px, transparent 1px) 0 0/100% 48px,
        linear-gradient(90deg, rgba(255,255,255,.026) 1px, transparent 1px) 0 0/48px 100%;
}
img{display:block;max-width:100%}
a{color:inherit}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
.glass{background:var(--glass-bg);border:1px solid var(--glass-bd);border-radius:var(--r-panel);
    box-shadow:var(--sh-card),inset 0 1px 0 rgba(255,255,255,.06);backdrop-filter:blur(var(--glass-blur));
    -webkit-backdrop-filter:blur(var(--glass-blur));}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(6,10,20,.82);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);transition:background .25s ease}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
    background:linear-gradient(90deg,transparent,var(--c-primary),var(--c-accent),transparent);opacity:.7}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height .28s ease}
.site-header.is-scrolled{background:rgba(4,7,16,.94)}
.site-header.is-scrolled .nav-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--t-1);flex:0 0 auto}
.brand-mark{width:12px;height:12px;border-radius:4px;
    background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
    box-shadow:0 0 14px rgba(23,225,200,.75)}
.brand-text{font-family:var(--font-num);font-size:20px;font-weight:700;letter-spacing:-.4px;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--c-primary)}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
    color:var(--t-2);text-decoration:none;font-size:15px;border-radius:10px;transition:color .22s ease}
.nav-links a::after{content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;border-radius:2px;
    background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
    transform:scaleX(0);transform-origin:left;transition:transform .26s ease}
.nav-links a:hover{color:var(--t-1)}
.nav-links a:hover::after{transform:scaleX(1);opacity:.45}
.nav-links a.active{color:var(--c-primary);text-shadow:0 0 12px rgba(23,225,200,.5)}
.nav-links a.active::after{transform:scaleX(1);opacity:1}
.nav-actions{display:flex;align-items:center;gap:12px}

/* ============ 按钮 ============ */
.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 24px;border-radius:var(--r-pill);font-size:15px;font-weight:700;
    text-decoration:none;border:1px solid transparent;cursor:pointer;overflow:hidden;
    transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .25s ease}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--c-primary);color:#04121A;
    box-shadow:0 0 0 1px rgba(23,225,200,.35),0 0 22px rgba(23,225,200,.30)}
.btn-primary::after{content:"";position:absolute;top:0;left:-70%;width:38%;height:100%;
    background:linear-gradient(100deg,transparent,rgba(255,255,255,.6),transparent);
    animation:sweep 2.6s ease-in-out infinite}
@keyframes sweep{0%{left:-70%}55%{left:125%}100%{left:125%}}
.btn-primary:hover{background:var(--c-primary-hi);transform:translateY(-1px);
    box-shadow:0 0 0 1px rgba(77,243,222,.5),0 0 40px rgba(23,225,200,.45)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:transparent;color:var(--c-primary);border-color:rgba(23,225,200,.45)}
.btn-outline:hover{background:rgba(23,225,200,.12);color:var(--c-primary-hi)}
.btn-ghost{background:transparent;color:var(--c-primary);border:none;padding:0 6px;min-height:40px}
.btn-ghost span{transition:transform .22s ease}
.btn-ghost:hover span{transform:translateX(4px)}
.icon-btn{width:44px;height:44px;border-radius:12px;background:rgba(20,30,54,.6);
    border:1px solid var(--glass-bd);display:none;align-items:center;justify-content:center;
    flex-direction:column;gap:4px;cursor:pointer;transition:border-color .22s ease,background .22s ease}
.icon-btn span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t-1);transition:.22s ease}
.icon-btn:hover{border-color:rgba(23,225,200,.5);background:rgba(23,225,200,.10)}

/* ============ 阅读进度 ============ */
.read-progress{position:fixed;top:0;left:0;right:0;height:2px;z-index:70;background:transparent;pointer-events:none}
.read-progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
    box-shadow:0 0 12px rgba(23,225,200,.6)}

/* ============ 移动抽屉 ============ */
.mobile-drawer{position:fixed;inset:0;z-index:80;display:none;flex-direction:column;gap:4px;
    padding:96px 24px 32px;background:rgba(4,6,14,.97);backdrop-filter:blur(10px)}
.mobile-drawer.open{display:flex}
.mobile-drawer a{display:flex;align-items:center;min-height:48px;color:var(--t-1);text-decoration:none;
    font-size:17px;border-bottom:1px solid rgba(120,220,255,.10);transition:color .2s ease,padding-left .2s ease}
.mobile-drawer a:hover,.mobile-drawer a.active{color:var(--c-primary);padding-left:6px}
body.drawer-open{overflow:hidden}

/* ============ 文章页头 ============ */
.article-hero{position:relative;padding:40px 0 44px;
    background:linear-gradient(180deg,rgba(4,6,14,.74),rgba(4,6,14,.95)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--t-3)}
.breadcrumb a{color:var(--t-2);text-decoration:none;transition:color .2s ease}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--c-primary);font-family:var(--font-num)}
.breadcrumb .current{color:var(--t-3);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-tag);
    font-size:12px;letter-spacing:.4px;color:var(--c-primary);background:rgba(23,225,200,.08);
    border:1px solid rgba(23,225,200,.4);text-decoration:none;transition:.2s ease}
a.tag:hover{background:rgba(23,225,200,.18);color:var(--c-primary-hi)}
.article-title{font-size:clamp(28px,3.6vw,40px);line-height:1.28;font-weight:700;
    margin:18px 0 16px;max-width:920px;letter-spacing:-.2px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;font-size:14px;color:var(--t-3)}
.article-meta em{font-style:normal;font-family:var(--font-num);font-variant-numeric:tabular-nums;color:var(--t-2)}
.article-meta .divider{width:1px;height:12px;background:rgba(120,220,255,.22)}

/* ============ 封面 ============ */
.feature-section{padding:34px 0 0;position:relative;z-index:1}
.feature-figure{max-width:1100px;margin:0 auto;border-radius:var(--r-img);overflow:hidden;
    border:1px solid rgba(23,225,200,.22);box-shadow:0 22px 50px rgba(0,0,0,.5)}
.feature-figure img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}

/* ============ 正文 ============ */
.article-main{padding:52px 0 76px;position:relative;z-index:1}
.article-body{max-width:760px;margin:0 auto;padding:34px 38px;border-radius:var(--r-panel);
    background:var(--glass-bg);border:1px solid var(--glass-bd);
    box-shadow:var(--sh-card),inset 0 1px 0 rgba(255,255,255,.06);
    backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur))}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 20px;font-size:16px;line-height:1.95;color:#D4E2F5}
.article-body h2{position:relative;font-size:24px;line-height:1.45;font-weight:700;color:var(--t-1);
    margin:40px 0 16px;padding-left:16px}
.article-body h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:3px;
    background:linear-gradient(180deg,var(--c-primary),var(--c-primary-dk));box-shadow:0 0 14px rgba(23,225,200,.6)}
.article-body h3{position:relative;font-size:19px;line-height:1.5;font-weight:600;color:var(--t-1);
    margin:28px 0 12px;padding-left:18px}
.article-body h3::before{content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:2px;
    background:var(--c-primary);box-shadow:0 0 8px rgba(23,225,200,.6)}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px;color:var(--t-1)}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--c-primary-hi)}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body li{margin-bottom:10px;line-height:1.9;color:#D4E2F5}
.article-body ul>li{list-style:none;position:relative;padding-left:16px}
.article-body ul>li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:2px;
    background:var(--c-primary);box-shadow:0 0 8px rgba(23,225,200,.6)}
.article-body ol{list-style:decimal}
.article-body ol>li::marker{color:var(--c-primary);font-family:var(--font-num);font-weight:600}
.article-body blockquote{margin:0 0 22px;padding:18px 22px;border-radius:0 var(--r-img) var(--r-img) 0;
    background:rgba(20,30,54,.62);border-left:3px solid var(--c-accent);color:var(--t-2)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:6px 0 8px;width:100%;height:auto}
.article-body figcaption{font-size:13px;color:var(--t-3);text-align:center;margin:0 0 22px}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 22px;font-size:15px;
    border:1px solid var(--glass-bd);border-radius:12px;overflow:hidden;
    box-shadow:0 12px 30px rgba(0,0,0,.35)}
.article-body th,.article-body td{padding:12px 16px;text-align:left;line-height:1.7;
    border-bottom:1px solid rgba(120,220,255,.12)}
.article-body th{background:rgba(23,225,200,.10);color:var(--t-1);font-weight:600}
.article-body td{color:var(--t-2)}
.article-body tr:nth-child(even) td{background:rgba(255,255,255,.02)}
.article-body tr:last-child td{border-bottom:none}
.article-body hr{border:none;height:1px;margin:32px 0;
    background:linear-gradient(90deg,transparent,rgba(23,225,200,.55),rgba(255,61,139,.45),transparent)}
.article-body strong{color:#FFFFFF;font-weight:600}
.empty-state{text-align:center;padding:36px 10px}
.empty-state h2{font-size:22px;margin:0 0 10px;padding-left:0}
.empty-state h2::before{display:none}
.empty-state p{margin:0 0 22px;color:var(--t-2)}

/* ============ 文末 ============ */
.article-foot{max-width:760px;margin:26px auto 0;display:flex;flex-wrap:wrap;align-items:center;
    justify-content:space-between;gap:16px}
.foot-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.foot-label{font-size:13px;color:var(--t-3)}

/* ============ 相关内容 ============ */
.related{padding:26px 0 0;position:relative;z-index:1}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.sec-title{font-size:26px;font-weight:700;margin:0;line-height:1.4}
.sec-sub{font-size:14px;color:var(--t-3);margin:6px 0 0}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card-text{position:relative;display:block;padding:24px;border-radius:var(--r-card);text-decoration:none;
    background:var(--glass-bg);border:1px solid var(--glass-bd);
    box-shadow:var(--sh-card),inset 0 1px 0 rgba(255,255,255,.06);
    transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease}
.card-text::before{content:"";position:absolute;left:24px;top:20px;width:2px;height:0;border-radius:2px;
    background:linear-gradient(180deg,var(--c-primary),var(--c-accent));
    transition:height .26s ease,opacity .26s ease;opacity:0}
.card-text:hover{transform:translateY(-4px);border-color:rgba(23,225,200,.45);
    box-shadow:0 24px 48px rgba(0,0,0,.5),0 0 24px rgba(23,225,200,.12)}
.card-text:hover::before{height:26px;opacity:1}
.card-text h3{font-size:18px;line-height:1.5;font-weight:600;margin:14px 0 10px;color:var(--t-1);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-text p{font-size:14px;line-height:1.8;color:var(--t-2);margin:0 0 14px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{font-size:13px;color:var(--t-3);font-family:var(--font-num);
    font-variant-numeric:tabular-nums;display:flex;align-items:center;gap:10px}

/* ============ CTA ============ */
.cta-strip{padding:64px 0 8px;position:relative;z-index:1}
.cta-panel{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;padding:34px 36px}
.cta-panel h2{font-size:24px;font-weight:700;margin:0 0 10px}
.cta-panel p{font-size:15px;color:var(--t-2);margin:0;max-width:620px;line-height:1.85}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{position:relative;z-index:1;margin-top:70px;padding:62px 0 28px;
    background:linear-gradient(180deg,rgba(8,13,27,.65),rgba(4,6,14,.97));border-top:1px solid rgba(120,220,255,.12)}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;
    background:linear-gradient(90deg,transparent,var(--c-primary),var(--c-accent),transparent)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px}
.footer-grid h4{font-size:14px;font-weight:600;letter-spacing:.5px;color:var(--c-primary);margin:0 0 16px}
.footer-grid p{font-size:14px;line-height:1.85;color:var(--t-2);margin:0}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--t-2);text-decoration:none;transition:color .2s ease,transform .2s ease}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;
    margin-top:42px;padding-top:20px;border-top:1px solid rgba(120,220,255,.10);
    font-size:13px;color:var(--t-3)}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .52s ease,transform .52s ease}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
    *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
    .reveal{opacity:1;transform:none}
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
    .related-grid{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:900px){
    .nav-links{display:none}
    .icon-btn{display:flex}
    .container{padding:0 20px}
    .article-body{padding:28px 24px}
    .breadcrumb .current{max-width:100%;white-space:normal}
}
@media (max-width:640px){
    body.site-body{font-size:15.5px}
    .container{padding:0 16px}
    .article-hero{padding:30px 0 34px}
    .article-title{margin:14px 0 14px}
    .article-main{padding:34px 0 56px}
    .article-body{padding:22px 18px;border-radius:16px}
    .article-body h2{font-size:21px;margin:30px 0 12px}
    .article-body h3{font-size:18px}
    .article-body p{font-size:15.5px;line-height:1.9}
    .feature-section{padding-top:24px}
    .related-grid{grid-template-columns:1fr}
    .cta-panel{padding:24px 20px}
    .cta-actions{width:100%}
    .cta-actions .btn{flex:1 1 auto}
    .footer-grid{grid-template-columns:1fr}
    .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: category2 */
:root{
    --bg-0:#04060E;
    --bg-1:#080D1B;
    --bg-2:#0D1428;
    --c-primary:#17E1C8;
    --c-primary-hi:#4DF3DE;
    --c-primary-dk:#0BA99A;
    --c-accent:#FF3D8B;
    --c-violet:#8B5CF6;
    --t-1:#E9F2FF;
    --t-2:#9FB3D1;
    --t-3:#63779A;
    --glass-bg:rgba(20,30,54,0.55);
    --glass-bd:rgba(120,220,255,0.14);
    --glass-blur:18px;
    --ok:#22C55E;
    --warn:#FFB020;
    --err:#FF4D5E;
    --r-card:18px;
    --r-panel:22px;
    --r-pill:999px;
    --r-tag:8px;
    --r-img:14px;
    --sh-card:0 18px 40px rgba(0,0,0,.45);
    --maxw:1200px;
    --ff-num:"Inter","HarmonyOS Sans",system-ui,sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
    margin:0;
    background:var(--bg-0);
    color:var(--t-1);
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    font-size:16px;
    line-height:1.9;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
}
body::before{
    content:"";
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
    background:
        radial-gradient(58% 38% at 10% 6%, rgba(23,225,200,.10), transparent 70%),
        radial-gradient(48% 36% at 90% 18%, rgba(255,61,139,.08), transparent 72%);
}
body::after{
    content:"";
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
    opacity:.5;
    background-image:
        linear-gradient(rgba(120,220,255,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(120,220,255,.05) 1px, transparent 1px);
    background-size:72px 72px;
    mask-image:radial-gradient(circle at 50% 20%, #000 0%, transparent 78%);
}
body.no-scroll{overflow:hidden;}

img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,select{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;letter-spacing:.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}

.container{
    width:100%;
    max-width:var(--maxw);
    margin:0 auto;
    padding:0 24px;
    position:relative;
    z-index:1;
}

/* ===== 顶部导航 ===== */
.site-header{
    position:sticky;
    top:0;
    z-index:80;
    background:rgba(6,10,20,.82);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    transition:background .25s ease;
}
.site-header::after{
    content:"";
    position:absolute;
    left:0;right:0;bottom:0;
    height:1px;
    background:linear-gradient(90deg,transparent,rgba(23,225,200,.75),rgba(255,61,139,.55),transparent);
}
.nav-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
    height:72px;
    transition:height .25s ease;
}
.site-header.is-scrolled .nav-inner{height:60px;}
.brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-weight:700;
    letter-spacing:.01em;
    white-space:nowrap;
}
.brand-mark{
    position:relative;
    width:22px;height:22px;
    border-radius:7px;
    background:linear-gradient(140deg,var(--c-primary),var(--c-violet));
    box-shadow:0 0 18px rgba(23,225,200,.55);
}
.brand-mark::after{
    content:"";
    position:absolute;
    inset:6px;
    border-radius:3px;
    background:#04060E;
    opacity:.65;
}
.brand-text{font-size:19px;letter-spacing:-.01em;}
.brand-text em{font-style:normal;color:var(--c-primary);}

.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
    position:relative;
    display:inline-flex;
    align-items:center;
    height:44px;
    padding:0 14px;
    font-size:15px;
    color:var(--t-2);
    border-radius:10px;
    transition:color .2s ease,background .2s ease;
}
.nav-links a::after{
    content:"";
    position:absolute;
    left:14px;right:14px;bottom:7px;
    height:2px;
    border-radius:2px;
    background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
    opacity:0;
    transform:scaleX(.35);
    transform-origin:left center;
    transition:opacity .24s ease,transform .24s ease;
}
.nav-links a:hover{color:var(--t-1);}
.nav-links a:hover::after{opacity:.45;transform:scaleX(1);}
.nav-links a.active{
    color:var(--c-primary);
    text-shadow:0 0 12px rgba(23,225,200,.45);
}
.nav-links a.active::after{
    opacity:1;
    transform:scaleX(1);
    box-shadow:0 0 12px rgba(23,225,200,.65);
}
.nav-actions{display:flex;align-items:center;gap:12px;}

/* ===== 按钮 ===== */
.btn{
    position:relative;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:44px;
    padding:0 22px;
    border:0;
    border-radius:var(--r-pill);
    font-weight:700;
    font-size:15px;
    cursor:pointer;
    overflow:hidden;
    transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .25s ease;
}
.btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;}
.btn-primary{
    background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dk));
    color:#04121A;
    box-shadow:0 0 0 1px rgba(23,225,200,.35),0 0 22px rgba(23,225,200,.30);
}
.btn-primary::before{
    content:"";
    position:absolute;
    top:0;left:-120%;
    width:60%;height:100%;
    background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);
    animation:sweep 3.4s ease-in-out infinite;
}
@keyframes sweep{
    0%{left:-120%;}
    55%{left:130%;}
    100%{left:130%;}
}
.btn-primary:hover{
    background:linear-gradient(135deg,var(--c-primary-hi),var(--c-primary));
    box-shadow:0 0 0 1px rgba(77,243,222,.5),0 0 40px rgba(23,225,200,.45);
    transform:translateY(-1px);
}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
    background:transparent;
    border:1px solid rgba(23,225,200,.45);
    color:var(--c-primary);
}
.btn-ghost:hover{
    background:rgba(23,225,200,.12);
    box-shadow:0 0 22px rgba(23,225,200,.22);
    transform:translateY(-1px);
}
.btn-text{
    background:transparent;
    color:var(--c-primary);
    padding:0 4px;
    font-weight:600;
}
.btn-text span{transition:transform .24s ease;display:inline-block;}
.btn-text:hover span{transform:translateX(4px);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}

.icon-btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:44px;height:44px;
    border:1px solid var(--glass-bd);
    border-radius:12px;
    background:rgba(20,30,54,.5);
    cursor:pointer;
    transition:border-color .22s ease,background .22s ease;
}
.icon-btn:hover{border-color:rgba(23,225,200,.5);background:rgba(23,225,200,.1);}
.icon-btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

.burger{display:none;flex-direction:column;gap:5px;}
.burger span{
    display:block;
    width:18px;height:2px;
    border-radius:2px;
    background:var(--t-1);
    transition:transform .24s ease,opacity .24s ease;
}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger.is-open span:nth-child(2){opacity:0;}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ===== 页面头部 ===== */
.page-head{
    position:relative;
    padding:52px 0 46px;
    overflow:hidden;
    border-bottom:1px solid rgba(120,220,255,.08);
}
.page-head::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:url('/assets/images/backpic/back-2.png');
    background-size:cover;
    background-position:center right;
    opacity:.22;
    mask-image:linear-gradient(90deg,#000 0%,rgba(0,0,0,.25) 62%,transparent 100%);
    -webkit-mask-image:linear-gradient(90deg,#000 0%,rgba(0,0,0,.25) 62%,transparent 100%);
}
.page-head .container{position:relative;z-index:2;}
.crumb{
    display:flex;
    align-items:center;
    gap:10px;
    font-size:13.5px;
    color:var(--t-3);
    margin-bottom:22px;
}
.crumb a{color:var(--t-2);transition:color .2s ease;}
.crumb a:hover{color:var(--c-primary);}
.crumb i{color:var(--c-primary);font-style:normal;}
.crumb .cur{color:var(--t-1);}

.head-row{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:40px;
    flex-wrap:wrap;
}
.head-main{max-width:640px;}
.eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:6px 14px;
    margin-bottom:18px;
    border:1px solid rgba(23,225,200,.35);
    border-radius:var(--r-pill);
    background:rgba(23,225,200,.08);
    color:var(--c-primary);
    font-size:12px;
    letter-spacing:.08em;
    font-weight:600;
}
.eyebrow::before{
    content:"";
    width:6px;height:6px;
    border-radius:50%;
    background:var(--c-primary);
    box-shadow:0 0 10px var(--c-primary);
}
.page-head h1{
    font-size:clamp(30px,4vw,46px);
    line-height:1.24;
    margin-bottom:16px;
}
.page-head h1 em{
    font-style:normal;
    color:var(--c-primary);
    text-shadow:0 0 24px rgba(23,225,200,.35);
}
.head-sub{
    color:var(--t-2);
    font-size:16px;
    line-height:1.9;
    max-width:600px;
}
.mini-filter{
    display:flex;
    align-items:center;
    gap:10px;
    flex-wrap:wrap;
    padding:12px;
    border:1px solid var(--glass-bd);
    border-radius:var(--r-panel);
    background:var(--glass-bg);
    backdrop-filter:blur(var(--glass-blur));
    -webkit-backdrop-filter:blur(var(--glass-blur));
    box-shadow:var(--sh-card),inset 0 1px 0 rgba(255,255,255,.06);
}
.mf-field{
    display:flex;
    align-items:center;
    gap:8px;
    padding:0 14px;
    height:42px;
    min-width:200px;
    border:1px solid rgba(120,220,255,.14);
    border-radius:12px;
    background:rgba(4,6,14,.5);
    transition:border-color .22s ease,box-shadow .22s ease;
}
.mf-field:focus-within{
    border-color:rgba(23,225,200,.65);
    box-shadow:0 0 18px rgba(23,225,200,.2);
}
.mf-field input{
    width:100%;
    border:0;
    background:transparent;
    outline:none;
    font-size:14px;
    color:var(--t-1);
}
.mf-field input::placeholder{color:var(--t-3);}
.mf-field .mf-ico{color:var(--c-primary);font-size:14px;}
.mf-chip{
    height:38px;
    padding:0 15px;
    border:1px solid rgba(120,220,255,.16);
    border-radius:var(--r-pill);
    background:transparent;
    color:var(--t-2);
    font-size:13.5px;
    cursor:pointer;
    transition:all .2s ease;
}
.mf-chip:hover{color:var(--t-1);border-color:rgba(23,225,200,.45);}
.mf-chip.active{
    color:#04121A;
    font-weight:700;
    background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dk));
    border-color:transparent;
    box-shadow:0 0 18px rgba(23,225,200,.35);
}

/* ===== 通用板块 ===== */
.section{padding:88px 0;}
.section-alt{background:linear-gradient(180deg,rgba(8,13,27,0),rgba(8,13,27,.85) 22%,rgba(8,13,27,.85) 78%,rgba(8,13,27,0));}
.sec-head{max-width:720px;margin-bottom:48px;}
.sec-tag{
    display:inline-block;
    padding:5px 12px;
    margin-bottom:16px;
    border:1px solid rgba(255,61,139,.4);
    border-radius:var(--r-tag);
    background:rgba(255,61,139,.1);
    color:var(--c-accent);
    font-size:12px;
    font-weight:600;
    letter-spacing:.08em;
}
.sec-head h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:14px;}
.sec-head h2 em{font-style:normal;color:var(--c-primary);}
.sec-head p{color:var(--t-2);font-size:15.5px;line-height:1.9;}
.neon-rule{
    height:1px;
    border:0;
    margin:0 0 32px;
    background:linear-gradient(90deg,transparent,rgba(23,225,200,.85),rgba(255,61,139,.6),transparent);
}
.glass{
    background:var(--glass-bg);
    border:1px solid var(--glass-bd);
    border-radius:var(--r-panel);
    backdrop-filter:blur(var(--glass-blur));
    -webkit-backdrop-filter:blur(var(--glass-blur));
    box-shadow:var(--sh-card),inset 0 1px 0 rgba(255,255,255,.06);
}

/* ===== 时间轴 ===== */
.timeline{position:relative;padding:6px 0;}
.timeline::before{
    content:"";
    position:absolute;
    left:25px;
    top:14px;
    bottom:14px;
    width:1px;
    background:linear-gradient(180deg,rgba(23,225,200,.08),var(--c-primary) 12%,rgba(255,61,139,.7) 62%,rgba(23,225,200,.12));
}
.tl-item{
    position:relative;
    padding-left:78px;
    margin-bottom:26px;
}
.tl-item:last-child{margin-bottom:0;}
.tl-node{
    position:absolute;
    left:0;
    top:6px;
    width:52px;
    height:52px;
    display:grid;
    place-items:center;
    border-radius:16px;
    background:rgba(13,20,40,.94);
    border:1px solid rgba(23,225,200,.35);
    box-shadow:0 0 22px rgba(23,225,200,.25),inset 0 1px 0 rgba(255,255,255,.06);
}
.tl-node::after{
    content:"";
    position:absolute;
    right:-4px;
    top:50%;
    width:7px;height:7px;
    transform:translateY(-50%);
    border-radius:50%;
    background:var(--c-primary);
    box-shadow:0 0 12px var(--c-primary);
}
.tl-index{
    font-family:var(--ff-num);
    font-variant-numeric:tabular-nums;
    font-size:15px;
    font-weight:700;
    letter-spacing:.06em;
    color:var(--c-primary);
}
.tl-card{
    padding:24px 26px;
    transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.tl-card:hover{
    transform:translateY(-4px);
    border-color:rgba(23,225,200,.42);
    box-shadow:0 22px 48px rgba(0,0,0,.5),0 0 0 1px rgba(23,225,200,.18),inset 0 1px 0 rgba(255,255,255,.08);
}
.tl-card h3{
    font-size:20px;
    margin-bottom:10px;
    display:flex;
    align-items:center;
    gap:10px;
}
.tl-card h3::before{
    content:"";
    width:4px;height:18px;
    border-radius:2px;
    background:linear-gradient(180deg,var(--c-primary),var(--c-accent));
    box-shadow:0 0 10px rgba(23,225,200,.5);
    flex:none;
}
.tl-card p{color:var(--t-2);font-size:15px;line-height:1.9;}
.tl-media{
    margin-top:18px;
    border-radius:var(--r-img);
    overflow:hidden;
    border:1px solid rgba(120,220,255,.14);
    aspect-ratio:16/9;
}
.tl-media img{
    width:100%;height:100%;
    object-fit:cover;
    transition:transform .5s ease;
}
.tl-card:hover .tl-media img{transform:scale(1.04);}
.tl-meta{
    display:flex;
    align-items:center;
    gap:10px;
    margin-top:16px;
    flex-wrap:wrap;
}
.tag{
    display:inline-flex;
    align-items:center;
    padding:3px 10px;
    border:1px solid rgba(23,225,200,.35);
    border-radius:var(--r-tag);
    background:rgba(23,225,200,.08);
    color:var(--c-primary);
    font-size:12px;
    font-weight:600;
}
.tag-pink{
    border-color:rgba(255,61,139,.4);
    background:rgba(255,61,139,.1);
    color:var(--c-accent);
}
.tl-note{
    font-family:var(--ff-num);
    font-variant-numeric:tabular-nums;
    font-size:13px;
    color:var(--t-3);
}

/* ===== 适用场景 ===== */
.scene-grid{
    display:grid;
    grid-template-columns:5fr 7fr;
    gap:24px;
    align-items:stretch;
}
.scene-main{
    position:relative;
    border-radius:var(--r-panel);
    overflow:hidden;
    border:1px solid rgba(120,220,255,.16);
    min-height:340px;
    display:flex;
    align-items:flex-end;
    box-shadow:var(--sh-card);
}
.scene-main img{
    position:absolute;
    inset:0;
    width:100%;height:100%;
    object-fit:cover;
    transition:transform .6s ease;
}
.scene-main:hover img{transform:scale(1.05);}
.scene-main::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(180deg,rgba(4,6,14,.05) 20%,rgba(4,6,14,.9) 92%);
}
.scene-main .scene-body{
    position:relative;
    z-index:2;
    padding:28px;
}
.scene-main h3{font-size:22px;margin-bottom:10px;}
.scene-main p{color:var(--t-2);font-size:14.5px;line-height:1.85;}
.scene-mini{display:grid;gap:18px;grid-auto-rows:1fr;}
.scene-card{
    padding:22px 24px;
    display:flex;
    gap:18px;
    align-items:flex-start;
    transition:transform .26s ease,border-color .26s ease;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(23,225,200,.4);}
.scene-num{
    flex:none;
    width:42px;height:42px;
    display:grid;
    place-items:center;
    border-radius:12px;
    background:rgba(23,225,200,.1);
    border:1px solid rgba(23,225,200,.3);
    color:var(--c-primary);
    font-family:var(--ff-num);
    font-variant-numeric:tabular-nums;
    font-weight:700;
    font-size:14px;
}
.scene-card h3{font-size:18px;margin-bottom:8px;}
.scene-card p{color:var(--t-2);font-size:14.5px;line-height:1.85;}

/* ===== 要点速览 ===== */
.stat-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:20px;
    margin-bottom:32px;
}
.stat{
    padding:24px 22px;
    transition:transform .26s ease,border-color .26s ease;
}
.stat:hover{transform:translateY(-4px);border-color:rgba(23,225,200,.4);}
.stat-num{
    display:block;
    font-family:var(--ff-num);
    font-variant-numeric:tabular-nums;
    font-size:38px;
    font-weight:700;
    line-height:1.1;
    color:var(--c-primary);
    text-shadow:0 0 22px rgba(23,225,200,.35);
}
.stat-lb{
    display:block;
    margin:10px 0 8px;
    font-size:15px;
    font-weight:600;
}
.stat p{color:var(--t-3);font-size:13.5px;line-height:1.8;}
.check-list{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:18px;
}
.check-item{
    display:flex;
    gap:12px;
    align-items:flex-start;
    padding:18px 20px;
    border:1px solid rgba(120,220,255,.12);
    border-radius:var(--r-card);
    background:rgba(13,20,40,.55);
    font-size:14.5px;
    color:var(--t-2);
    line-height:1.85;
}
.check-item::before{
    content:"";
    flex:none;
    width:8px;height:8px;
    margin-top:11px;
    border-radius:2px;
    background:var(--c-primary);
    box-shadow:0 0 10px rgba(23,225,200,.6);
}
.check-item b{color:var(--t-1);font-weight:600;}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
    border-radius:var(--r-card);
    overflow:hidden;
    transition:border-color .24s ease;
}
.faq-item.open{border-color:rgba(23,225,200,.4);}
.faq-q{
    position:relative;
    display:flex;
    align-items:center;
    gap:16px;
    width:100%;
    padding:20px 24px;
    background:transparent;
    border:0;
    text-align:left;
    cursor:pointer;
    font-weight:600;
    font-size:16.5px;
    color:var(--t-1);
}
.faq-q:focus-visible{outline:2px solid var(--c-primary);outline-offset:-2px;}
.faq-no{
    font-family:var(--ff-num);
    font-variant-numeric:tabular-nums;
    font-size:13px;
    color:var(--c-primary);
    letter-spacing:.08em;
    flex:none;
}
.faq-t{flex:1;}
.faq-i{
    position:relative;
    flex:none;
    width:22px;height:22px;
    border-radius:50%;
    border:1px solid rgba(23,225,200,.4);
}
.faq-i::before,.faq-i::after{
    content:"";
    position:absolute;
    left:50%;top:50%;
    background:var(--c-primary);
    transform:translate(-50%,-50%);
    transition:transform .24s ease,opacity .24s ease;
}
.faq-i::before{width:10px;height:1.5px;}
.faq-i::after{width:1.5px;height:10px;}
.faq-item.open .faq-i::after{transform:translate(-50%,-50%) scaleY(0);opacity:0;}
.faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .26s ease-out;
}
.faq-a p{
    padding:0 24px 22px 62px;
    color:var(--t-2);
    font-size:15px;
    line-height:1.9;
}
.faq-item.open .faq-a{max-height:340px;}

/* ===== CTA ===== */
.cta-panel{
    position:relative;
    display:grid;
    grid-template-columns:1.1fr .9fr;
    gap:40px;
    align-items:center;
    padding:44px;
    overflow:hidden;
}
.cta-panel::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:url('/assets/images/backpic/back-3.png');
    background-size:cover;
    background-position:center;
    opacity:.14;
}
.cta-panel > *{position:relative;z-index:2;}
.cta-panel h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:14px;}
.cta-panel p{color:var(--t-2);font-size:15.5px;line-height:1.9;}
.cta-actions{
    display:flex;
    gap:14px;
    flex-wrap:wrap;
    justify-content:flex-end;
}
.cta-note{
    margin-top:18px;
    font-size:13.5px;
    color:var(--t-3);
}

/* ===== 页脚 ===== */
.site-footer{
    position:relative;
    margin-top:40px;
    padding:64px 0 28px;
    background:linear-gradient(180deg,rgba(8,13,27,.4),rgba(4,6,14,.96));
    z-index:1;
}
.site-footer::before{
    content:"";
    position:absolute;
    left:0;right:0;top:0;
    height:1px;
    background:linear-gradient(90deg,transparent,rgba(23,225,200,.75),rgba(255,61,139,.55),transparent);
}
.footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1fr;
    gap:36px;
}
.footer-grid p{color:var(--t-2);font-size:14px;line-height:1.85;}
.footer-grid h4{
    margin-bottom:18px;
    color:var(--c-primary);
    font-size:13.5px;
    letter-spacing:.1em;
    font-weight:600;
}
.footer-links{display:grid;gap:12px;}
.footer-links a{
    color:var(--t-2);
    font-size:14px;
    transition:color .2s ease,transform .2s ease;
}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px);}
.footer-bottom{
    display:flex;
    flex-wrap:wrap;
    gap:14px 28px;
    justify-content:space-between;
    margin-top:44px;
    padding-top:22px;
    border-top:1px solid rgba(120,220,255,.1);
    color:var(--t-3);
    font-size:13px;
}

/* ===== 进场动画 ===== */
.reveal{
    opacity:0;
    transform:translateY(16px);
    transition:opacity .52s ease,transform .52s ease;
}
.reveal.in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition:none !important;}
    .reveal{opacity:1;transform:none;}
    html{scroll-behavior:auto;}
}

/* ===== 响应式 ===== */
@media (max-width:1200px){
    .scene-grid{grid-template-columns:1fr 1.25fr;}
}
@media (max-width:1024px){
    .section{padding:72px 0;}
    .stat-grid{grid-template-columns:repeat(2,1fr);}
    .check-list{grid-template-columns:repeat(2,1fr);}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .scene-grid{grid-template-columns:1fr;}
    .scene-main{min-height:280px;}
    .cta-panel{grid-template-columns:1fr;gap:28px;padding:36px;}
    .cta-actions{justify-content:flex-start;}
}
@media (max-width:900px){
    .nav-links{
        position:fixed;
        top:72px;
        left:0;right:0;bottom:0;
        flex-direction:column;
        align-items:stretch;
        gap:6px;
        padding:18px 20px 32px;
        background:rgba(5,8,16,.97);
        backdrop-filter:blur(18px);
        -webkit-backdrop-filter:blur(18px);
        transform:translateY(-10px);
        opacity:0;
        visibility:hidden;
        overflow-y:auto;
        transition:opacity .26s ease,transform .26s ease,visibility .26s ease;
    }
    .nav-links.open{opacity:1;visibility:visible;transform:none;}
    .nav-links a{
        height:48px;
        padding:0 16px;
        font-size:16px;
        border-radius:12px;
    }
    .nav-links a::after{
        left:16px;right:auto;top:50%;bottom:auto;
        width:3px;height:20px;
        transform:translateY(-50%) scaleY(.35);
        transform-origin:center;
        background:linear-gradient(180deg,var(--c-primary),var(--c-accent));
    }
    .nav-links a:hover::after,
    .nav-links a.active::after{transform:translateY(-50%) scaleY(1);}
    .burger{display:inline-flex;}
    .nav-actions .btn{display:none;}
    .head-row{gap:26px;}
    .mini-filter{width:100%;}
    .mf-field{flex:1 1 100%;}
}
@media (max-width:768px){
    .container{padding:0 16px;}
    .section{padding:64px 0;}
    .page-head{padding:38px 0 34px;}
    .tl-item{padding-left:60px;margin-bottom:22px;}
    .tl-node{width:44px;height:44px;border-radius:14px;}
    .timeline::before{left:21px;}
    .tl-card{padding:20px;}
    .tl-card h3{font-size:18px;}
    .faq-a p{padding:0 20px 20px 20px;}
    .stat-grid{grid-template-columns:1fr 1fr;gap:14px;}
    .check-list{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:520px){
    body{font-size:15.5px;}
    .brand-text{font-size:17px;}
    .nav-inner{height:64px;}
    .nav-links{top:64px;}
    .stat-grid{grid-template-columns:1fr;}
    .scene-card{flex-direction:column;gap:12px;}
    .cta-panel{padding:26px;}
    .btn{width:100%;}
    .cta-actions .btn,
    .mini-filter .mf-chip{width:auto;}
    .footer-bottom{flex-direction:column;}
}

/* roulang page: category1 */
:root{
  --bg-0:#04060E;--bg-1:#080D1B;--bg-2:#0D1428;
  --c-primary:#17E1C8;--c-primary-hi:#4DF3DE;--c-primary-dk:#0BA99A;
  --c-accent:#FF3D8B;--c-violet:#8B5CF6;
  --t-1:#E9F2FF;--t-2:#9FB3D1;--t-3:#63779A;
  --glass-bg:rgba(20,30,54,.55);--glass-bd:rgba(120,220,255,.14);--glass-blur:18px;
  --ok:#22C55E;--warn:#FFB020;--err:#FF4D5E;
  --r-card:18px;--r-panel:22px;--r-img:14px;--r-btn:999px;
  --sh-card:0 18px 40px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(23,225,200,.35),0 0 22px rgba(23,225,200,.30);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Inter","HarmonyOS Sans",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;background:var(--bg-0);color:var(--t-1);
  font-family:var(--font-cn);font-size:16px;line-height:1.9;font-weight:400;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(620px 430px at 10% -8%,rgba(23,225,200,.10),transparent 62%),
    radial-gradient(560px 420px at 94% 6%,rgba(255,61,139,.085),transparent 64%),
    linear-gradient(rgba(120,220,255,.042) 1px,transparent 1px) 0 0/64px 64px,
    linear-gradient(90deg,rgba(120,220,255,.042) 1px,transparent 1px) 0 0/64px 64px;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .22s ease,border-color .22s ease,background-color .22s ease}
button,input,select{font:inherit;color:inherit;margin:0}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
h1{font-size:clamp(32px,4vw,46px)}
h2{font-size:clamp(24px,2.4vw,32px)}
h3{font-size:clamp(19px,1.6vw,22px)}
::selection{background:rgba(23,225,200,.30);color:#fff}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
main,footer,.site-header{position:relative;z-index:1}
.neon-line{height:1px;width:100%;background:linear-gradient(90deg,transparent,#17E1C8,#FF3D8B,transparent);opacity:.7}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-head .lead{max-width:640px}
.tag{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:8px;
  border:1px solid rgba(23,225,200,.45);color:var(--c-primary);background:rgba(23,225,200,.07);
  font-size:12px;font-weight:600;letter-spacing:.06em;font-family:var(--font-num);
}
.tag-accent{border-color:rgba(255,61,139,.45);color:var(--c-accent);background:rgba(255,61,139,.08)}
.sec-title{margin-top:16px}
.sec-desc{margin-top:14px;color:var(--t-2);font-size:15.5px;line-height:1.9}
.mono{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(6,10,20,.82);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  transition:height .24s ease,background-color .24s ease;
}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,225,200,.7),rgba(255,61,139,.7),transparent)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height .24s ease}
.site-header.is-scrolled .nav-inner{height:60px}
.site-header.is-scrolled{background:rgba(6,10,20,.94)}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{
  width:14px;height:14px;border-radius:4px;flex:none;
  background:linear-gradient(135deg,var(--c-primary),var(--c-violet));
  box-shadow:0 0 14px rgba(23,225,200,.75),inset 0 0 6px rgba(255,255,255,.4);
}
.brand-text{font-size:20px;font-weight:700;letter-spacing:-.02em;font-family:var(--font-num)}
.brand-text em{font-style:normal;color:var(--c-primary);font-family:var(--font-cn);letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;color:var(--t-2);border-radius:10px;transition:color .22s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;border-radius:2px;
  background:transparent;transition:background-color .22s ease;
}
.nav-links a:hover{color:var(--t-1)}
.nav-links a:hover::after{background:rgba(23,225,200,.35)}
.nav-links a.active{color:var(--c-primary);text-shadow:0 0 14px rgba(23,225,200,.55)}
.nav-links a.active::after{background:var(--c-primary);box-shadow:0 0 12px rgba(23,225,200,.8)}
.nav-actions{display:flex;align-items:center;gap:12px}

/* 按钮 */
.btn{
  position:relative;overflow:hidden;display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:700;letter-spacing:.01em;cursor:pointer;white-space:nowrap;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease;
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dk));color:#04121A;
  box-shadow:var(--sh-glow);
}
.btn-primary::after{
  content:"";position:absolute;top:0;left:-60%;width:45%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);
  transform:skewX(-18deg);animation:shine 1.2s linear infinite;
}
@keyframes shine{0%{left:-60%}100%{left:130%}}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(23,225,200,.5),0 0 40px rgba(23,225,200,.45)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{
  background:transparent;border-color:rgba(23,225,200,.45);color:var(--c-primary);
}
.btn-outline:hover{background:rgba(23,225,200,.12);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;min-height:44px;color:var(--t-2);
  font-size:15px;font-weight:600;background:none;border:0;padding:0;cursor:pointer;
}
.btn-ghost span{transition:transform .22s ease}
.btn-ghost:hover{color:var(--c-primary)}
.btn-ghost:hover span{transform:translateX(4px)}
.icon-btn{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--glass-bd);
  background:rgba(20,30,54,.5);align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.icon-btn span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t-1);transition:transform .22s ease,opacity .22s ease}
body.nav-open .icon-btn span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .icon-btn span:nth-child(2){opacity:0}
body.nav-open .icon-btn span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 面包屑 */
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--t-3);flex-wrap:wrap}
.breadcrumb a{color:var(--t-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--c-primary);font-family:var(--font-num)}
.breadcrumb .now{color:var(--t-1)}

/* Hero */
.hero{position:relative;padding:56px 0 76px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;opacity:.30;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:0;
  background:linear-gradient(180deg,rgba(4,6,14,.72),rgba(4,6,14,.94) 72%,var(--bg-0));
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:52px;align-items:center}
.hero-panel{
  padding:36px;border-radius:var(--r-panel);border:1px solid var(--glass-bd);
  background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));
  box-shadow:var(--sh-card),inset 0 1px 0 rgba(255,255,255,.06);
}
.hero h1{margin-top:20px}
.hero h1 .hl{
  background:linear-gradient(120deg,var(--c-primary),var(--c-violet) 70%,var(--c-accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin-top:18px;color:var(--t-2);font-size:17px;line-height:1.9;max-width:560px}
.hero-cta{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.hero-stats{display:flex;gap:28px;margin-top:32px;padding-top:24px;border-top:1px solid rgba(120,220,255,.12);flex-wrap:wrap}
.hero-stat .num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:26px;font-weight:700;color:var(--c-primary);line-height:1.1}
.hero-stat .txt{margin-top:6px;font-size:13px;color:var(--t-3)}
.hero-visual{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid rgba(23,225,200,.25);box-shadow:0 0 46px rgba(23,225,200,.18)}
.hero-visual img{width:100%;aspect-ratio:16/9;object-fit:cover}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,6,14,.05),rgba(4,6,14,.65))}

/* 分类切换 */
.cat-bar{border-top:1px solid rgba(120,220,255,.10);border-bottom:1px solid rgba(120,220,255,.10);background:rgba(8,13,27,.7)}
.cat-bar-inner{display:flex;align-items:center;gap:12px;padding:16px 0;flex-wrap:wrap}
.cat-tabs{display:flex;gap:10px;flex-wrap:wrap}
.cat-tab{
  display:inline-flex;align-items:center;height:44px;padding:0 20px;border-radius:var(--r-btn);
  border:1px solid var(--glass-bd);background:rgba(20,30,54,.45);color:var(--t-2);
  font-size:14.5px;font-weight:600;
}
.cat-tab:hover{color:var(--t-1);border-color:rgba(23,225,200,.45)}
.cat-tab.active{
  color:#04121A;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dk));
  border-color:transparent;box-shadow:var(--sh-glow);
}
.cat-hint{font-size:13.5px;color:var(--t-3);margin-left:auto}

/* 精选大卡 */
.feature-card{
  position:relative;display:flex;align-items:flex-end;min-height:360px;border-radius:var(--r-panel);
  overflow:hidden;border:1px solid var(--glass-bd);box-shadow:var(--sh-card);
}
.feature-card .bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.feature-card:hover .bg{transform:scale(1.04)}
.feature-card .mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(4,6,14,.93) 12%,rgba(4,6,14,.62) 58%,rgba(4,6,14,.30))}
.feature-body{position:relative;z-index:2;padding:38px;max-width:620px}
.feature-body h3{margin-top:16px;font-size:clamp(22px,2.2vw,30px)}
.feature-body p{margin-top:14px;color:var(--t-2);font-size:15.5px;line-height:1.9}
.feature-actions{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap;align-items:center}

/* 卖点区：左大右小不对称 */
.perk-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:24px}
.perk-main{
  position:relative;padding:34px;border-radius:var(--r-card);border:1px solid var(--glass-bd);
  background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));
  box-shadow:var(--sh-card),inset 0 1px 0 rgba(255,255,255,.06);overflow:hidden;
  display:flex;flex-direction:column;justify-content:space-between;
}
.perk-main::before{content:"";position:absolute;top:0;left:0;width:100%;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent),transparent)}
.perk-num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:44px;font-weight:700;color:rgba(23,225,200,.30);line-height:1}
.perk-main h3{margin-top:18px}
.perk-main p{margin-top:14px;color:var(--t-2);font-size:15px}
.perk-img{margin-top:26px;border-radius:var(--r-img);overflow:hidden;border:1px solid rgba(120,220,255,.14)}
.perk-img img{width:100%;aspect-ratio:16/9;object-fit:cover}
.perk-side{display:grid;gap:24px}
.perk-card{
  position:relative;padding:24px;border-radius:var(--r-card);border:1px solid var(--glass-bd);
  background:rgba(13,20,40,.6);box-shadow:var(--sh-card),inset 0 1px 0 rgba(255,255,255,.05);
  transition:transform .24s ease,border-color .24s ease;
}
.perk-card:hover{transform:translateY(-4px);border-color:rgba(23,225,200,.4)}
.perk-card .idx{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:13px;color:var(--c-accent);font-weight:700;letter-spacing:.08em}
.perk-card h3{margin-top:10px;font-size:19px}
.perk-card p{margin-top:10px;color:var(--t-2);font-size:14.5px;line-height:1.85}
.perk-ico{width:34px;height:34px;border-radius:10px;border:1px solid rgba(23,225,200,.35);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.perk-ico svg{width:18px;height:18px;stroke:var(--c-primary);fill:none;stroke-width:1.6}

/* 条目卡网格 */
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.news-card{
  position:relative;padding:26px;border-radius:var(--r-card);border:1px solid var(--glass-bd);
  background:rgba(13,20,40,.62);box-shadow:var(--sh-card),inset 0 1px 0 rgba(255,255,255,.05);
  transition:transform .24s ease,border-color .24s ease,background-color .24s ease;
}
.news-card::before{
  content:"";position:absolute;left:0;top:26px;width:2px;height:0;border-radius:2px;
  background:var(--c-primary);box-shadow:0 0 10px rgba(23,225,200,.8);transition:height .26s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(23,225,200,.4);background:rgba(17,26,50,.72)}
.news-card:hover::before{height:36px}
.news-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.news-card h3{margin-top:16px;font-size:19px}
.news-card p{margin-top:12px;color:var(--t-2);font-size:14.5px;line-height:1.88}
.news-date{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--t-3);font-family:var(--font-num);font-variant-numeric:tabular-nums}
.news-date svg{width:14px;height:14px;stroke:var(--t-3);fill:none;stroke-width:1.6}
.news-more{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-size:14px;font-weight:600;color:var(--c-primary)}
.news-more i{font-style:normal;transition:transform .22s ease}
.news-card:hover .news-more i{transform:translateX(4px)}
.card-cover{position:absolute;inset:0;z-index:3;border-radius:var(--r-card)}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{
  position:relative;border-radius:var(--r-card);border:1px solid var(--glass-bd);
  background:rgba(13,20,40,.6);overflow:hidden;box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
  transition:border-color .24s ease,background-color .24s ease;
}
.faq-item::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:transparent;transition:background-color .24s ease}
.faq-item.is-open{border-color:rgba(23,225,200,.42);background:rgba(17,26,50,.74)}
.faq-item.is-open::before{background:var(--c-primary);box-shadow:0 0 12px rgba(23,225,200,.8)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;padding:20px 24px;background:none;border:0;
  text-align:left;cursor:pointer;font-size:16px;font-weight:600;color:var(--t-1);min-height:44px;
}
.faq-q .no{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:14px;font-weight:700;color:var(--c-accent);flex:none}
.faq-q .sign{margin-left:auto;flex:none;width:26px;height:26px;border-radius:50%;border:1px solid rgba(23,225,200,.4);display:flex;align-items:center;justify-content:center;color:var(--c-primary);font-size:16px;line-height:1;transition:transform .24s ease}
.faq-item.is-open .faq-q .sign{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out}
.faq-a p{padding:0 24px 22px 62px;color:var(--t-2);font-size:15px;line-height:1.9}

/* CTA 条 */
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  padding:26px 30px;border-radius:var(--r-panel);border:1px solid var(--glass-bd);
  background:linear-gradient(120deg,rgba(23,225,200,.10),rgba(13,20,40,.62) 55%,rgba(255,61,139,.08));
  box-shadow:var(--sh-card),inset 0 1px 0 rgba(255,255,255,.06);
}
.cta-bar h3{font-size:20px}
.cta-bar p{margin-top:8px;color:var(--t-2);font-size:14.5px}

/* 表单 */
.form-wrap{
  display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:44px;align-items:start;
  padding:40px;border-radius:var(--r-panel);border:1px solid var(--glass-bd);
  background:rgba(8,13,27,.72);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));
  box-shadow:var(--sh-card),inset 0 1px 0 rgba(255,255,255,.06);
}
.form-points{margin-top:24px;display:grid;gap:14px}
.form-points li{position:relative;padding-left:20px;color:var(--t-2);font-size:14.8px;line-height:1.85}
.form-points li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 10px rgba(23,225,200,.7)}
.form-panel{display:grid;gap:20px}
.field{display:grid;gap:8px}
.field label{font-size:14px;color:var(--t-2)}
.field input,.field select{
  height:46px;padding:0 14px;border-radius:12px;background:rgba(4,6,14,.6);
  border:1px solid rgba(120,220,255,.16);color:var(--t-1);font-size:15px;outline:none;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.field input::placeholder{color:var(--t-3)}
.field input:focus,.field select:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(23,225,200,.14)}
.field select option{background:#0D1428;color:var(--t-1)}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--t-2);line-height:1.8}
.check input{width:18px;height:18px;margin-top:4px;accent-color:var(--c-primary);flex:none}
.form-tip{font-size:12.5px;color:var(--t-3)}
.form-msg{font-size:13.5px;color:var(--c-primary);min-height:20px}

/* 页脚 */
.site-footer{margin-top:0;border-top:1px solid rgba(120,220,255,.12);background:rgba(4,6,14,.9);position:relative}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,225,200,.7),rgba(255,61,139,.7),transparent)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1.1fr;gap:40px;padding:64px 0 40px}
.site-footer p{color:var(--t-2);font-size:14px;line-height:1.9}
.site-footer h4{font-size:14px;color:var(--c-primary);letter-spacing:.06em;margin-bottom:18px}
.footer-links{display:grid;gap:12px}
.footer-links a{font-size:14px;color:var(--t-2);transition:color .22s ease,transform .22s ease;display:inline-block}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 32px;border-top:1px solid rgba(120,220,255,.10);
  font-size:13px;color:var(--t-3);
}

/* 进场动效 */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .52s ease,transform .52s ease}
.reveal.in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
}

/* 响应式 */
@media (max-width:1200px){
  .container{padding:0 24px}
}
@media (max-width:1024px){
  .section{padding:72px 0}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:-1}
  .perk-grid{grid-template-columns:1fr}
  .form-wrap{grid-template-columns:1fr;gap:32px;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
}
@media (max-width:900px){
  .nav-links{
    position:fixed;top:72px;left:0;right:0;height:calc(100vh - 72px);
    flex-direction:column;align-items:stretch;gap:0;padding:16px 24px 32px;
    background:rgba(6,10,20,.98);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    border-top:1px solid var(--glass-bd);z-index:88;
    opacity:0;visibility:hidden;transform:translateY(-12px);
    transition:opacity .24s ease,transform .24s ease,visibility .24s ease;
  }
  body.nav-open .nav-links{opacity:1;visibility:visible;transform:none}
  .nav-links a{height:50px;font-size:16px;border-bottom:1px solid rgba(120,220,255,.08);border-radius:0;padding:0 4px}
  .nav-links a::after{display:none}
  .nav-links a.active{padding-left:12px;border-left:2px solid var(--c-primary)}
  .icon-btn{display:flex}
  .nav-actions .btn-sm{display:none}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .hero{padding:36px 0 56px}
  .hero-panel{padding:26px}
  .hero-stats{gap:20px}
  .news-grid{grid-template-columns:1fr}
  .feature-body{padding:26px}
  .feature-card{min-height:300px}
  .cta-bar{padding:22px}
  .cta-bar .btn{width:100%}
  .form-wrap{padding:24px}
  .faq-a p{padding:0 20px 20px 20px}
  .faq-q{padding:18px 20px;font-size:15.5px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .cat-hint{margin-left:0;width:100%}
}
@media (max-width:520px){
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .hero-stats{flex-direction:column;gap:16px}
  .nav-actions{gap:8px}
  .feature-actions .btn{width:100%}
}

/* roulang page: category3 */
:root{
  --bg-0:#04060E;
  --bg-1:#080D1B;
  --bg-2:#0D1428;
  --c-primary:#17E1C8;
  --c-primary-hi:#4DF3DE;
  --c-primary-dk:#0BA99A;
  --c-accent:#FF3D8B;
  --c-violet:#8B5CF6;
  --t-1:#E9F2FF;
  --t-2:#9FB3D1;
  --t-3:#63779A;
  --glass-bg:rgba(20,30,54,.55);
  --glass-bd:rgba(120,220,255,.14);
  --glass-blur:18px;
  --ok:#22C55E;
  --warn:#FFB020;
  --err:#FF4D5E;
  --r-card:18px;
  --r-panel:22px;
  --r-btn:999px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--t-1);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(780px 540px at 10% -8%, rgba(23,225,200,.10), transparent 62%),
    radial-gradient(700px 500px at 94% 6%, rgba(255,61,139,.08), transparent 60%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  opacity:.05;
  background-image:linear-gradient(rgba(120,220,255,.5) 1px, transparent 1px),
                   linear-gradient(90deg, rgba(120,220,255,.5) 1px, transparent 1px);
  background-size:64px 64px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .22s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1}
.num{font-family:"Inter","HarmonyOS Sans",system-ui;font-variant-numeric:tabular-nums}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,10,20,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  transition:background .25s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,225,200,.85),rgba(255,61,139,.85),transparent);
  opacity:.7;
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:72px;transition:height .25s ease;
}
.site-header.scrolled{background:rgba(4,7,16,.94)}
.site-header.scrolled .nav-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:14px;height:14px;border-radius:5px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  box-shadow:0 0 14px rgba(23,225,200,.75),0 0 28px rgba(255,61,139,.35);
}
.brand-text{font-size:20px;font-weight:700;letter-spacing:-.4px;color:var(--t-1)}
.brand-text em{font-style:normal;color:var(--c-primary)}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;
  height:44px;padding:0 14px;font-size:15px;color:var(--t-2);
  border-radius:10px;transition:color .22s ease,background .22s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:1px;
  background:rgba(23,225,200,.4);transform:scaleX(0);transform-origin:left;
  transition:transform .24s ease;
}
.nav-links a:hover{color:var(--t-1);background:rgba(23,225,200,.06)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--c-primary);text-shadow:0 0 14px rgba(23,225,200,.55)}
.nav-links a.active::after{
  height:2px;transform:scaleX(1);
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  box-shadow:0 0 12px rgba(23,225,200,.7);
}
.nav-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:44px;height:44px;display:none;align-items:center;justify-content:center;
  flex-direction:column;gap:5px;border-radius:12px;
  border:1px solid var(--glass-bd);background:rgba(20,30,54,.5);
}
.icon-btn span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t-1);transition:transform .25s ease,opacity .25s ease}
body.no-scroll{overflow:hidden}
.icon-btn.on span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.icon-btn.on span:nth-child(2){opacity:0}
.icon-btn.on span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ 按钮 ============ */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.3px;cursor:pointer;
  transition:transform .2s ease,box-shadow .28s ease,background .22s ease,color .22s ease;
}
.btn-primary{
  color:#04121A;font-weight:700;
  background:linear-gradient(120deg,var(--c-primary),var(--c-primary-hi));
  box-shadow:0 0 0 1px rgba(23,225,200,.35),0 0 22px rgba(23,225,200,.30);
  overflow:hidden;
}
.btn-primary::after{
  content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.55),transparent);
  transform:skewX(-18deg);animation:sweep 1.2s ease-in-out infinite;
}
@keyframes sweep{0%{left:-60%}60%{left:120%}100%{left:120%}}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(23,225,200,.55),0 0 40px rgba(23,225,200,.5)}
.btn-primary:active{transform:translateY(0) scale(.99)}
.btn-outline{
  color:var(--c-primary);background:transparent;
  border:1px solid rgba(23,225,200,.45);
}
.btn-outline:hover{background:rgba(23,225,200,.12);transform:translateY(-1px)}
.btn-ghost{color:var(--t-2);padding:0 6px;min-height:44px}
.btn-ghost .arrow{transition:transform .24s ease;color:var(--c-primary)}
.btn-ghost:hover{color:var(--t-1)}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--t-3);margin-bottom:20px}
.breadcrumb a{color:var(--t-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--c-primary);font-size:13px}

/* ============ 页面头 ============ */
.page-hero{position:relative;overflow:hidden;padding:56px 0 0}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.5;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(4,6,14,.94),rgba(4,6,14,.6) 42%,var(--bg-0) 100%);
}
.page-hero-inner{padding-bottom:56px;max-width:860px}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:8px;font-size:12px;letter-spacing:.6px;
  color:var(--c-primary);border:1px solid rgba(23,225,200,.35);
  background:rgba(23,225,200,.08);margin-bottom:20px;
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 10px var(--c-accent)}
.page-hero h1{font-size:clamp(28px,4vw,46px);margin-bottom:18px}
.page-hero h1 em{font-style:normal;color:var(--c-primary);text-shadow:0 0 26px rgba(23,225,200,.4)}
.lede{font-size:17px;color:var(--t-2);line-height:1.9;max-width:720px}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-meta span{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:10px;font-size:13.5px;color:var(--t-2);
  background:var(--glass-bg);border:1px solid var(--glass-bd);
  backdrop-filter:blur(var(--glass-blur));
}
.hero-meta span b{color:var(--c-primary);font-weight:700}

/* ============ 板块通用 ============ */
.section{padding:92px 0}
.section-alt{background:linear-gradient(180deg,rgba(8,13,27,0),rgba(8,13,27,.85) 18%,rgba(8,13,27,.85) 82%,rgba(8,13,27,0))}
.section-head{max-width:720px;margin-bottom:44px}
.section-head .kicker{
  display:inline-block;font-size:12.5px;letter-spacing:1.2px;color:var(--c-primary);
  margin-bottom:14px;position:relative;padding-left:16px;
}
.section-head .kicker::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:8px;height:2px;background:var(--c-accent);box-shadow:0 0 10px var(--c-accent);
}
.section-head h2{font-size:clamp(24px,3vw,32px);margin-bottom:14px}
.section-head p{color:var(--t-2);font-size:15.5px}
.neon-line{
  height:1px;width:100%;
  background:linear-gradient(90deg,transparent,rgba(23,225,200,.85),rgba(255,61,139,.85),transparent);
  opacity:.55;
}

/* ============ 对照面板 ============ */
.compare{
  border-radius:var(--r-panel);
  border:1px solid var(--glass-bd);
  background:var(--glass-bg);
  backdrop-filter:blur(var(--glass-blur));
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  overflow:hidden;
}
.compare-head{
  display:grid;grid-template-columns:280px 1fr;gap:24px;
  padding:18px 28px;font-size:13px;letter-spacing:1px;color:var(--t-3);
  background:rgba(13,20,40,.75);
  border-bottom:1px solid rgba(120,220,255,.12);
}
.compare-row{
  display:grid;grid-template-columns:280px 1fr;gap:24px;align-items:center;
  min-height:52px;padding:12px 28px;
  border-top:1px solid rgba(120,220,255,.07);
  transition:background .22s ease;
}
.compare-row:first-of-type{border-top:0}
.compare-row:nth-child(odd){background:rgba(255,255,255,.018)}
.compare-row:hover{background:rgba(23,225,200,.07)}
.compare-row dt{
  display:flex;align-items:center;gap:10px;
  font-size:15px;font-weight:600;color:var(--t-1);
}
.compare-row dt i{
  width:6px;height:6px;border-radius:2px;background:var(--c-primary);
  box-shadow:0 0 10px rgba(23,225,200,.8);flex-shrink:0;
}
.compare-row dd{margin:0;font-size:15px;color:var(--t-2);line-height:1.8}
.compare-note{
  padding:16px 28px;font-size:13.5px;color:var(--t-3);
  background:rgba(255,61,139,.05);
  border-top:1px solid rgba(255,61,139,.18);
}

/* ============ 图卡 ============ */
.grid-2x2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.tile{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--glass-bd);background:var(--bg-2);
  box-shadow:var(--shadow-card);
  transition:transform .28s ease,border-color .28s ease;
}
.tile:hover{transform:translateY(-4px);border-color:rgba(23,225,200,.45)}
.tile-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.tile-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.tile:hover .tile-media img{transform:scale(1.05)}
.tile-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(4,6,14,.05),rgba(4,6,14,.75));
}
.tile-tag{
  position:absolute;left:16px;top:16px;z-index:2;
  padding:4px 10px;border-radius:8px;font-size:12px;
  color:var(--c-primary);background:rgba(4,6,14,.7);
  border:1px solid rgba(23,225,200,.4);
}
.tile-body{padding:22px 24px 26px}
.tile-body h3{font-size:19px;margin-bottom:10px}
.tile-body p{font-size:14.5px;color:var(--t-2);line-height:1.85}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{
  border-radius:var(--r-card);
  border:1px solid var(--glass-bd);
  background:var(--glass-bg);
  backdrop-filter:blur(var(--glass-blur));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
  overflow:hidden;position:relative;
  transition:border-color .24s ease,background .24s ease;
}
.faq-item:hover{border-color:rgba(23,225,200,.34)}
.faq-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--c-primary);opacity:0;box-shadow:0 0 14px rgba(23,225,200,.9);
  transition:opacity .24s ease;
}
.faq-item.open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;gap:18px;text-align:left;
  padding:20px 24px;min-height:44px;color:var(--t-1);
}
.faq-q .idx{
  font-family:"Inter",system-ui;font-variant-numeric:tabular-nums;
  font-size:13px;color:var(--c-primary);letter-spacing:1px;flex-shrink:0;
}
.faq-q .txt{flex:1;font-size:16.5px;font-weight:600;line-height:1.6}
.faq-q .sign{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  color:var(--c-primary);border:1px solid rgba(23,225,200,.4);
  font-size:16px;line-height:1;transition:transform .24s ease,background .24s ease;
}
.faq-item.open .faq-q .sign{transform:rotate(180deg);background:rgba(23,225,200,.14)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .24s ease-out;
}
.faq-a .inner{padding:0 24px 22px 66px;font-size:15px;color:var(--t-2);line-height:1.9}

/* ============ CTA 面板 ============ */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:var(--r-panel);
  border:1px solid var(--glass-bd);
  background:linear-gradient(135deg,rgba(20,30,54,.78),rgba(13,20,40,.62));
  backdrop-filter:blur(var(--glass-blur));
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.07);
  padding:52px 44px;
  text-align:center;
}
.cta-panel::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(520px 300px at 12% 0%, rgba(23,225,200,.16), transparent 62%),
             radial-gradient(460px 280px at 92% 100%, rgba(255,61,139,.14), transparent 60%);
  pointer-events:none;
}
.cta-panel > *{position:relative;z-index:1}
.cta-panel h2{font-size:clamp(24px,3vw,32px);margin-bottom:16px}
.cta-panel p{color:var(--t-2);font-size:15.5px;max-width:640px;margin:0 auto}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;margin-top:32px}
.cta-points{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;margin-top:26px}
.cta-points span{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--t-2)}
.cta-points span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 10px rgba(23,225,200,.8)}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;margin-top:20px;
  background:var(--bg-1);
  padding:72px 0 32px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,225,200,.85),rgba(255,61,139,.85),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-grid h4{font-size:14px;color:var(--c-primary);letter-spacing:1px;margin-bottom:18px}
.footer-grid p{font-size:14px;color:var(--t-2);line-height:1.85}
.footer-links{display:grid;gap:10px}
.footer-links a{
  font-size:14px;color:var(--t-2);
  transition:color .2s ease,transform .2s ease;display:inline-block;
}
.footer-links a:hover{color:var(--c-primary);transform:translateX(-2px)}
.footer-bottom{
  margin-top:48px;padding-top:24px;
  border-top:1px solid rgba(120,220,255,.1);
  display:flex;flex-wrap:wrap;gap:12px 28px;
  font-size:13px;color:var(--t-3);
}

/* ============ 进场动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .52s ease,transform .52s ease}
.reveal.in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .section{padding:72px 0}
  .page-hero-inner{padding-bottom:44px}
}
@media (max-width:900px){
  .nav-inner{height:64px}
  .icon-btn{display:flex}
  .nav-links{
    position:fixed;top:0;right:0;z-index:70;
    height:100vh;width:min(340px,86vw);
    flex-direction:column;align-items:stretch;gap:0;
    padding:96px 24px 32px;
    background:rgba(8,13,27,.97);
    backdrop-filter:blur(18px);
    border-left:1px solid var(--glass-bd);
    transform:translateX(105%);
    transition:transform .32s ease;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-links a{
    height:52px;padding:0;border-radius:0;font-size:16px;
    border-bottom:1px solid rgba(120,220,255,.08);
  }
  .nav-links a::after{display:none}
  .nav-links a.active{border-bottom-color:rgba(23,225,200,.4)}
  .nav-actions .btn-sm{display:none}
  .compare-head{display:none}
  .compare-row{grid-template-columns:1fr;gap:6px;padding:18px 22px;min-height:0;align-items:flex-start}
  .compare-row dd{font-size:14.5px}
  .compare-note{padding:16px 22px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:60px 0}
  .grid-2x2{grid-template-columns:1fr}
  .page-hero{padding-top:36px}
  .page-hero-inner{padding-bottom:36px}
  .cta-panel{padding:36px 22px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-a .inner{padding:0 20px 20px 20px}
}
@media (max-width:520px){
  body{font-size:15.5px}
  .brand-text{font-size:18px}
  .hero-meta span{font-size:13px;padding:7px 12px}
  .cta-actions .btn{width:100%}
  .compare-row{padding:16px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}