/* roulang page: index */
:root{
      --bg:#070b0f;
      --bg-2:#0d1319;
      --panel:#111923;
      --panel-2:#141e29;
      --card:#101821;
      --muted-card:#0b1219;
      --line:rgba(143, 176, 189, .18);
      --line-strong:rgba(82, 231, 209, .34);
      --text:#eef6f5;
      --muted:#94aab1;
      --soft:#c2d4d6;
      --cyan:#39f0d1;
      --cyan-2:#78d8ff;
      --amber:#ffb547;
      --red:#e56d5a;
      --green:#8bf5a2;
      --shadow:0 18px 50px rgba(0,0,0,.38);
      --shadow-soft:0 12px 28px rgba(0,0,0,.25);
      --radius-xl:24px;
      --radius-lg:18px;
      --radius-md:14px;
      --radius-sm:10px;
      --container:1180px;
      --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      --mono:"DIN Alternate","Roboto Mono","SFMono-Regular",Consolas,monospace;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      line-height:1.68;
      background:
        linear-gradient(rgba(57,240,209,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(57,240,209,.025) 1px, transparent 1px),
        radial-gradient(circle at 15% 8%, rgba(57,240,209,.16), transparent 28%),
        radial-gradient(circle at 86% 18%, rgba(255,181,71,.10), transparent 26%),
        var(--bg);
      background-size:44px 44px,44px 44px,auto,auto,auto;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:linear-gradient(120deg, transparent 0 30%, rgba(255,255,255,.025) 30% 30.3%, transparent 30.3% 58%, rgba(57,240,209,.025) 58% 58.2%, transparent 58.2%);
      opacity:.72;
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{
      width:min(var(--container), calc(100% - 40px));
      margin-inline:auto;
    }
    .skip-link{
      position:absolute;
      left:16px;
      top:-60px;
      background:var(--cyan);
      color:#03100e;
      padding:10px 14px;
      border-radius:10px;
      z-index:100;
      transition:.2s ease;
    }
    .skip-link:focus{top:14px;outline:2px solid var(--amber)}

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      border-bottom:1px solid var(--line);
      background:rgba(7,11,15,.84);
      backdrop-filter:blur(14px);
    }
    .nav-wrap{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#06110f;
      font-weight:900;
      font-family:var(--mono);
      letter-spacing:-1px;
      background:
        linear-gradient(135deg, var(--cyan), var(--cyan-2));
      box-shadow:0 0 0 1px rgba(255,255,255,.12), 0 10px 28px rgba(57,240,209,.22);
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.08;
    }
    .brand-text strong{
      font-size:18px;
      letter-spacing:.2px;
      white-space:nowrap;
    }
    .brand-text span{
      margin-top:4px;
      font-size:12px;
      color:var(--muted);
      white-space:nowrap;
    }
    .main-nav{
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .main-nav a{
      position:relative;
      padding:10px 14px;
      border-radius:999px;
      color:var(--soft);
      font-size:14px;
      border:1px solid transparent;
      transition:transform .2s ease,color .2s ease,border-color .2s ease,background .2s ease;
    }
    .main-nav a:hover{
      color:var(--text);
      transform:translateY(-1px);
      border-color:var(--line-strong);
      background:rgba(57,240,209,.07);
    }
    .main-nav a.active{
      color:#06110f;
      background:var(--cyan);
      font-weight:700;
      box-shadow:0 10px 24px rgba(57,240,209,.18);
    }
    .mobile-toggle{
      display:none;
      width:44px;
      height:44px;
      border:1px solid var(--line);
      border-radius:14px;
      background:rgba(255,255,255,.04);
      color:var(--text);
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:12px 18px;
      border-radius:999px;
      border:1px solid var(--line);
      color:var(--text);
      background:rgba(255,255,255,.04);
      transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease, color .2s ease;
      font-weight:700;
      white-space:nowrap;
    }
    .btn:hover{
      transform:translateY(-2px);
      border-color:var(--line-strong);
      box-shadow:0 16px 34px rgba(0,0,0,.26);
      background:rgba(57,240,209,.08);
    }
    .btn:focus-visible,.main-nav a:focus-visible,.search-box input:focus-visible,.search-box button:focus-visible{
      outline:3px solid rgba(255,181,71,.45);
      outline-offset:3px;
    }
    .btn.primary{
      background:linear-gradient(135deg, var(--cyan), var(--cyan-2));
      color:#03110f;
      border-color:transparent;
      box-shadow:0 16px 38px rgba(57,240,209,.18);
    }
    .btn.primary:hover{box-shadow:0 20px 44px rgba(57,240,209,.25)}
    .btn.warning{
      background:rgba(255,181,71,.12);
      border-color:rgba(255,181,71,.34);
      color:#ffe0a6;
    }
    .badge,.tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      border-radius:999px;
      padding:6px 10px;
      font-size:12px;
      line-height:1;
      border:1px solid var(--line);
      color:var(--soft);
      background:rgba(255,255,255,.04);
    }
    .badge.cyan,.tag.cyan{border-color:rgba(57,240,209,.32);color:#bafff4;background:rgba(57,240,209,.08)}
    .badge.amber,.tag.amber{border-color:rgba(255,181,71,.36);color:#ffdca0;background:rgba(255,181,71,.10)}
    .badge.red,.tag.red{border-color:rgba(229,109,90,.36);color:#ffb1a5;background:rgba(229,109,90,.10)}
    .badge.green,.tag.green{border-color:rgba(139,245,162,.32);color:#c7ffd2;background:rgba(139,245,162,.08)}

    .hero{
      position:relative;
      padding:74px 0 42px;
      overflow:hidden;
    }
    .hero::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg, rgba(7,11,15,.92), rgba(7,11,15,.72) 48%, rgba(7,11,15,.96)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      opacity:.72;
      z-index:-2;
    }
    .hero::before{
      content:"";
      position:absolute;
      width:520px;
      height:520px;
      right:-220px;
      top:20px;
      background:radial-gradient(circle, rgba(57,240,209,.18), transparent 64%);
      z-index:-1;
    }
    .hero-layout{
      display:grid;
      grid-template-columns:minmax(0, 1.08fr) minmax(360px, .92fr);
      gap:32px;
      align-items:stretch;
    }
    .hero-copy{
      padding:18px 0 10px;
    }
    .eyebrow{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:9px;
      margin-bottom:18px;
    }
    h1{
      margin:0;
      font-size:clamp(36px, 5vw, 66px);
      line-height:1.08;
      letter-spacing:-1.8px;
      max-width:820px;
    }
    .hero-subtitle{
      max-width:720px;
      margin:22px 0 0;
      color:var(--soft);
      font-size:18px;
    }
    .hero-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      margin-top:30px;
    }
    .hero-note{
      display:flex;
      align-items:flex-start;
      gap:10px;
      margin-top:22px;
      max-width:720px;
      padding:12px 14px;
      border:1px solid rgba(229,109,90,.26);
      border-radius:var(--radius-md);
      background:rgba(229,109,90,.08);
      color:#ffd0c9;
      font-size:14px;
    }
    .hero-note span:first-child{font-size:18px;line-height:1.3}
    .score-stage{
      display:grid;
      grid-template-rows:auto 1fr;
      gap:14px;
    }
    .score-board{
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      background:linear-gradient(180deg, rgba(17,25,35,.92), rgba(10,17,24,.94));
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .board-head{
      padding:18px 18px 14px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      border-bottom:1px solid var(--line);
    }
    .board-head h2{
      margin:0;
      font-size:18px;
    }
    .pulse{
      width:10px;
      height:10px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 0 8px rgba(57,240,209,.10);
      flex:0 0 auto;
    }
    .match-list{padding:12px}
    .match-row{
      display:grid;
      grid-template-columns:1fr auto 1fr;
      align-items:center;
      gap:12px;
      padding:14px 12px;
      border-radius:16px;
      background:rgba(255,255,255,.035);
      border:1px solid transparent;
      margin-bottom:10px;
    }
    .match-row:hover{border-color:var(--line-strong);background:rgba(57,240,209,.055)}
    .team{
      display:flex;
      flex-direction:column;
      gap:2px;
      min-width:0;
    }
    .team b{font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .team small{color:var(--muted);font-size:12px}
    .team.right{text-align:right}
    .score{
      min-width:76px;
      text-align:center;
      font-family:var(--mono);
      font-weight:900;
      font-size:24px;
      color:#eafffb;
      padding:4px 10px;
      border-radius:12px;
      background:rgba(57,240,209,.08);
      border:1px solid rgba(57,240,209,.20);
    }
    .board-foot{
      padding:14px 18px 18px;
      color:var(--muted);
      font-size:13px;
      border-top:1px solid var(--line);
    }
    .mini-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
    }
    .mini-card{
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      padding:16px;
      min-height:130px;
      background:rgba(13,19,25,.82);
      box-shadow:var(--shadow-soft);
    }
    .mini-card strong{
      display:block;
      font-family:var(--mono);
      font-size:28px;
      line-height:1.1;
      color:var(--cyan);
      margin-bottom:8px;
    }
    .mini-card span{color:var(--soft);font-size:14px}

    main{position:relative}
    .section{
      padding:58px 0;
    }
    .section-tight{padding:38px 0}
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:20px;
      margin-bottom:24px;
    }
    .section-head h2{
      margin:0;
      font-size:clamp(26px, 3vw, 38px);
      line-height:1.18;
      letter-spacing:-.8px;
    }
    .section-head p{
      margin:8px 0 0;
      color:var(--muted);
      max-width:660px;
    }

    .quick-strip{
      margin-top:-2px;
      padding:0 0 24px;
    }
    .quick-grid{
      display:grid;
      grid-template-columns:repeat(5, 1fr);
      gap:12px;
    }
    .quick-item{
      position:relative;
      overflow:hidden;
      padding:16px 14px;
      min-height:112px;
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg, rgba(20,30,41,.88), rgba(13,19,25,.88));
      border:1px solid var(--line);
      transition:.2s ease;
    }
    .quick-item:hover{
      transform:translateY(-3px);
      border-color:var(--line-strong);
      box-shadow:var(--shadow-soft);
    }
    .quick-item::after{
      content:"";
      position:absolute;
      right:-22px;
      bottom:-30px;
      width:90px;
      height:90px;
      border-radius:50%;
      border:1px solid rgba(57,240,209,.18);
    }
    .quick-item b{display:block;margin-bottom:7px;font-size:16px}
    .quick-item span{display:block;color:var(--muted);font-size:13px;line-height:1.55}

    .content-combo{
      display:grid;
      grid-template-columns:minmax(0, 1.42fr) minmax(310px, .58fr);
      gap:22px;
      align-items:start;
    }
    .feature-card{
      position:relative;
      overflow:hidden;
      min-height:430px;
      border-radius:var(--radius-xl);
      border:1px solid var(--line);
      box-shadow:var(--shadow);
      background:var(--panel);
    }
    .feature-card img{
      width:100%;
      height:430px;
      object-fit:cover;
      opacity:.72;
    }
    .feature-card::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(7,11,15,.15), rgba(7,11,15,.92) 72%);
    }
    .feature-content{
      position:absolute;
      inset:auto 0 0 0;
      padding:28px;
      z-index:2;
    }
    .feature-content h3{
      margin:14px 0 10px;
      font-size:clamp(24px,3vw,38px);
      line-height:1.18;
      letter-spacing:-.8px;
    }
    .feature-content p{
      margin:0 0 18px;
      color:var(--soft);
      max-width:760px;
    }
    .meta-line{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      align-items:center;
      color:var(--muted);
      font-size:13px;
    }
    .side-panel{
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      background:linear-gradient(180deg, rgba(17,25,35,.9), rgba(10,17,24,.9));
      padding:18px;
      box-shadow:var(--shadow-soft);
    }
    .side-panel h3{
      margin:0 0 14px;
      font-size:20px;
    }
    .focus-list{
      display:grid;
      gap:12px;
    }
    .focus-item{
      padding:13px;
      border:1px solid var(--line);
      border-radius:16px;
      background:rgba(255,255,255,.035);
      transition:.2s ease;
    }
    .focus-item:hover{border-color:var(--line-strong);background:rgba(57,240,209,.055)}
    .focus-item b{display:block;margin-bottom:5px}
    .focus-item span{display:block;color:var(--muted);font-size:13px}

    .article-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:16px;
    }
    .article-card{
      display:grid;
      grid-template-columns:174px minmax(0,1fr);
      gap:16px;
      align-items:stretch;
      padding:14px;
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg, rgba(17,25,35,.85), rgba(11,18,25,.92));
      border:1px solid var(--line);
      transition:.22s ease;
    }
    .article-card:hover{
      transform:translateY(-3px);
      border-color:var(--line-strong);
      box-shadow:var(--shadow-soft);
    }
    .article-thumb{
      position:relative;
      overflow:hidden;
      border-radius:14px;
      min-height:126px;
      background:#151d26;
    }
    .article-thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
      aspect-ratio:16/10;
    }
    .article-thumb .tag{
      position:absolute;
      left:10px;
      top:10px;
      backdrop-filter:blur(8px);
    }
    .article-body h3{
      margin:2px 0 8px;
      font-size:18px;
      line-height:1.35;
    }
    .article-body p{
      margin:0 0 12px;
      color:var(--muted);
      font-size:14px;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }

    .rule-band{
      border:1px solid rgba(255,181,71,.25);
      border-radius:var(--radius-xl);
      background:
        linear-gradient(90deg, rgba(255,181,71,.11), rgba(57,240,209,.05)),
        linear-gradient(180deg, rgba(17,25,35,.96), rgba(9,15,21,.96));
      padding:26px;
      display:grid;
      grid-template-columns:.92fr 1.08fr;
      gap:26px;
      align-items:center;
      box-shadow:var(--shadow-soft);
    }
    .rule-band h2{margin:0 0 12px;font-size:32px;line-height:1.2}
    .rule-band p{margin:0;color:var(--soft)}
    .check-list{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .check-list li{
      padding:13px 14px;
      border-radius:14px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.035);
      color:var(--soft);
    }
    .check-list li::before{
      content:"✓";
      color:var(--cyan);
      font-weight:900;
      margin-right:8px;
    }

    .data-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
    }
    .data-card{
      padding:20px;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:rgba(17,25,35,.78);
      box-shadow:var(--shadow-soft);
    }
    .data-card strong{
      display:block;
      font-family:var(--mono);
      font-size:34px;
      color:var(--cyan);
      line-height:1;
      margin-bottom:10px;
    }
    .data-card span{color:var(--muted);font-size:14px}

    .split-section{
      display:grid;
      grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
      gap:24px;
      align-items:center;
    }
    .image-panel{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-xl);
      border:1px solid var(--line);
      box-shadow:var(--shadow);
      min-height:390px;
    }
    .image-panel img{
      width:100%;
      height:390px;
      object-fit:cover;
      opacity:.84;
    }
    .image-panel .overlay-label{
      position:absolute;
      left:18px;
      bottom:18px;
      right:18px;
      padding:16px;
      border-radius:18px;
      background:rgba(7,11,15,.76);
      border:1px solid var(--line);
      backdrop-filter:blur(10px);
    }
    .text-panel{
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      padding:28px;
      background:rgba(17,25,35,.72);
    }
    .text-panel h2{margin:0 0 14px;font-size:34px;line-height:1.2}
    .text-panel p{color:var(--soft);margin:0 0 18px}
    .step-list{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:12px;
    }
    .step-list li{
      display:grid;
      grid-template-columns:42px 1fr;
      gap:12px;
      align-items:start;
      padding:13px;
      border-radius:16px;
      background:rgba(255,255,255,.035);
      border:1px solid var(--line);
    }
    .step-list em{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      font-style:normal;
      font-family:var(--mono);
      font-weight:900;
      color:#03110f;
      background:var(--cyan);
    }
    .step-list b{display:block;margin-bottom:3px}
    .step-list span{color:var(--muted);font-size:14px}

    .faq-grid{
      display:grid;
      grid-template-columns:.72fr 1.28fr;
      gap:24px;
      align-items:start;
    }
    .faq-intro{
      position:sticky;
      top:98px;
      padding:24px;
      border-radius:var(--radius-xl);
      border:1px solid var(--line);
      background:rgba(17,25,35,.78);
      box-shadow:var(--shadow-soft);
    }
    .faq-intro h2{margin:0 0 12px;font-size:32px;line-height:1.2}
    .faq-intro p{margin:0;color:var(--muted)}
    .faq-list{display:grid;gap:12px}
    details{
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:rgba(17,25,35,.78);
      overflow:hidden;
      transition:.2s ease;
    }
    details:hover{border-color:var(--line-strong)}
    details[open]{background:rgba(57,240,209,.055)}
    summary{
      list-style:none;
      cursor:pointer;
      padding:18px 20px;
      font-weight:800;
      display:flex;
      justify-content:space-between;
      gap:18px;
      align-items:center;
    }
    summary::-webkit-details-marker{display:none}
    summary::after{
      content:"+";
      width:28px;
      height:28px;
      border-radius:9px;
      display:grid;
      place-items:center;
      flex:0 0 auto;
      color:var(--cyan);
      border:1px solid var(--line);
      transition:.2s ease;
    }
    details[open] summary::after{content:"−";background:rgba(57,240,209,.12)}
    details p{
      margin:0;
      padding:0 20px 20px;
      color:var(--soft);
    }

    .cta{
      padding:54px 0 68px;
    }
    .cta-panel{
      position:relative;
      overflow:hidden;
      border-radius:28px;
      border:1px solid var(--line-strong);
      padding:34px;
      background:
        linear-gradient(90deg, rgba(7,11,15,.92), rgba(7,11,15,.70)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      box-shadow:var(--shadow);
      display:grid;
      grid-template-columns:1fr auto;
      gap:24px;
      align-items:center;
    }
    .cta-panel h2{margin:0 0 10px;font-size:34px;line-height:1.2}
    .cta-panel p{margin:0;color:var(--soft);max-width:780px}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}

    .site-footer{
      border-top:1px solid var(--line);
      background:#06090d;
      padding:42px 0 22px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:28px;
      margin-bottom:28px;
    }
    .footer-title{
      display:flex;
      align-items:center;
      gap:10px;
      margin-bottom:12px;
    }
    .footer-title .brand-mark{width:36px;height:36px;border-radius:12px;font-size:13px}
    .footer-title strong{font-size:18px}
    .footer-col p,.footer-col li{
      color:var(--muted);
      font-size:14px;
      margin:0;
    }
    .footer-col ul{margin:0;padding:0;list-style:none;display:grid;gap:8px}
    .footer-col a{color:var(--soft);transition:.2s ease}
    .footer-col a:hover{color:var(--cyan)}
    .risk-footer{
      padding:14px;
      border-radius:16px;
      background:rgba(229,109,90,.08);
      border:1px solid rgba(229,109,90,.22);
      color:#ffd0c9;
    }
    .copyright{
      padding-top:18px;
      border-top:1px solid var(--line);
      display:flex;
      justify-content:space-between;
      gap:14px;
      color:var(--muted);
      font-size:13px;
      flex-wrap:wrap;
    }

    @media (max-width:1024px){
      .hero-layout,.content-combo,.rule-band,.split-section,.faq-grid,.cta-panel{
        grid-template-columns:1fr;
      }
      .score-stage{grid-template-columns:1fr}
      .quick-grid{grid-template-columns:repeat(3,1fr)}
      .article-grid{grid-template-columns:1fr}
      .data-grid{grid-template-columns:repeat(2,1fr)}
      .faq-intro{position:relative;top:auto}
      .cta-actions{justify-content:flex-start}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px, var(--container))}
      .nav-wrap{min-height:68px}
      .brand-text span{display:none}
      .mobile-toggle{display:inline-grid;place-items:center}
      .main-nav{
        position:absolute;
        left:14px;
        right:14px;
        top:70px;
        display:none;
        padding:12px;
        border:1px solid var(--line);
        border-radius:18px;
        background:rgba(7,11,15,.96);
        box-shadow:var(--shadow);
      }
      .main-nav.open{display:grid;grid-template-columns:1fr}
      .main-nav a{border-color:var(--line);text-align:center}
      .hero{padding:48px 0 30px}
      .hero-layout{gap:22px}
      .hero-subtitle{font-size:16px}
      .hero-actions .btn{width:100%}
      .mini-grid,.check-list{grid-template-columns:1fr}
      .quick-grid{grid-template-columns:1fr 1fr}
      .article-card{grid-template-columns:1fr}
      .article-thumb img{height:auto;aspect-ratio:16/9}
      .feature-card,.feature-card img{min-height:390px;height:390px}
      .feature-content{padding:20px}
      .section{padding:42px 0}
      .section-head{display:block}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      h1{font-size:34px;letter-spacing:-1px}
      .brand-text strong{font-size:16px}
      .quick-grid,.data-grid{grid-template-columns:1fr}
      .match-row{grid-template-columns:1fr;gap:8px}
      .team.right{text-align:left}
      .score{width:max-content}
      .rule-band,.text-panel,.cta-panel{padding:20px}
      .feature-card,.feature-card img{min-height:430px;height:430px}
      .copyright{display:block}
      .btn{width:100%}
    }

/* roulang page: category1 */
:root{
      --bg:#080b0f;
      --bg-2:#0d1218;
      --panel:#111821;
      --panel-2:#151e28;
      --card:#121a23;
      --card-soft:#17222e;
      --text:#edf5f7;
      --muted:#98a8b2;
      --weak:#6f7f8b;
      --line:rgba(140, 169, 182, .18);
      --line-strong:rgba(91, 241, 219, .34);
      --cyan:#45ead8;
      --cyan-2:#8af7ff;
      --amber:#ffb34d;
      --amber-2:#ffd28c;
      --warn:#d86b55;
      --green:#7cf29a;
      --shadow:0 20px 60px rgba(0,0,0,.38);
      --shadow-soft:0 12px 30px rgba(0,0,0,.24);
      --radius-lg:22px;
      --radius:16px;
      --radius-sm:10px;
      --container:1180px;
      --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      --mono: "DIN Alternate", "Roboto Mono", Consolas, Monaco, monospace;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 12% 6%, rgba(69,234,216,.14), transparent 32%),
        radial-gradient(circle at 82% 12%, rgba(255,179,77,.09), transparent 28%),
        linear-gradient(180deg, #07090d 0%, var(--bg) 42%, #090d12 100%);
      line-height:1.72;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
      background-size:48px 48px;
      mask-image:linear-gradient(to bottom, rgba(0,0,0,.85), rgba(0,0,0,.18));
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(69,234,216,.28);color:#fff}
    .container{width:min(var(--container), calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(8,11,15,.86);
      backdrop-filter: blur(14px);
      border-bottom:1px solid var(--line);
    }
    .header-inner{
      min-height:74px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
    }
    .brand-mark{
      display:inline-grid;
      place-items:center;
      width:44px;
      height:44px;
      border-radius:14px;
      color:#071012;
      background:linear-gradient(135deg, var(--cyan), var(--amber));
      font-family:var(--mono);
      font-weight:900;
      letter-spacing:.5px;
      box-shadow:0 0 0 1px rgba(255,255,255,.18) inset, 0 12px 26px rgba(69,234,216,.14);
      flex:none;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      gap:1px;
      min-width:0;
    }
    .brand-text strong{
      font-size:18px;
      letter-spacing:.2px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand-text span{
      color:var(--muted);
      font-size:12px;
      white-space:nowrap;
    }
    .main-nav{
      display:flex;
      align-items:center;
      gap:8px;
      padding:6px;
      border:1px solid var(--line);
      background:rgba(17,24,33,.64);
      border-radius:999px;
    }
    .main-nav a{
      padding:10px 15px;
      border-radius:999px;
      color:var(--muted);
      font-size:14px;
      transition:.22s ease;
      outline:none;
    }
    .main-nav a:hover,.main-nav a:focus-visible{
      color:var(--text);
      background:rgba(255,255,255,.06);
      box-shadow:0 0 0 3px rgba(69,234,216,.11);
    }
    .main-nav a.active{
      color:#041111;
      background:linear-gradient(135deg, var(--cyan), var(--cyan-2));
      font-weight:800;
    }
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border:1px solid var(--line);
      border-radius:13px;
      background:rgba(255,255,255,.04);
      color:var(--text);
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
      color:var(--muted);
      font-size:13px;
      margin:24px 0 0;
    }
    .breadcrumb a{color:var(--cyan)}
    .breadcrumb span:last-child{color:var(--text)}
    .category-hero{
      position:relative;
      margin:22px 0 0;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      overflow:hidden;
      background:
        linear-gradient(110deg, rgba(8,11,15,.95) 0%, rgba(10,16,22,.88) 46%, rgba(10,16,22,.62) 100%),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      box-shadow:var(--shadow);
    }
    .category-hero:after{
      content:"";
      position:absolute;
      inset:auto 0 0;
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(69,234,216,.75), transparent);
    }
    .hero-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1.22fr .78fr;
      gap:34px;
      padding:54px;
      align-items:end;
    }
    .kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--cyan-2);
      border:1px solid rgba(69,234,216,.28);
      background:rgba(69,234,216,.08);
      padding:7px 12px;
      border-radius:999px;
      font-size:13px;
      font-weight:800;
      margin-bottom:18px;
    }
    .pulse{
      width:7px;height:7px;border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 0 6px rgba(69,234,216,.13);
    }
    h1{
      margin:0;
      font-size:clamp(32px, 5vw, 58px);
      line-height:1.08;
      letter-spacing:-1.6px;
    }
    .hero-desc{
      max-width:760px;
      margin:20px 0 0;
      color:#c6d3d9;
      font-size:17px;
    }
    .tag-row,.filter-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:24px;
    }
    .tag,.filter-chip,.badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      border-radius:999px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.045);
      color:#c7d5db;
      padding:7px 11px;
      font-size:13px;
      transition:.22s ease;
    }
    .tag.hot{border-color:rgba(255,179,77,.32);color:var(--amber-2);background:rgba(255,179,77,.08)}
    .tag.warn{border-color:rgba(216,107,85,.38);color:#ffb1a2;background:rgba(216,107,85,.08)}
    .filter-chip{
      padding:10px 14px;
      cursor:pointer;
      color:var(--muted);
    }
    .filter-chip:hover,.filter-chip:focus-visible,.filter-chip.active{
      border-color:var(--line-strong);
      color:#061516;
      background:var(--cyan);
      outline:none;
    }
    .hero-panel{
      border:1px solid rgba(255,255,255,.12);
      border-radius:20px;
      background:rgba(10,15,20,.74);
      padding:20px;
      box-shadow:var(--shadow-soft);
    }
    .hero-panel h2{
      margin:0 0 14px;
      font-size:18px;
    }
    .mini-score{
      display:grid;
      gap:10px;
    }
    .score-line{
      display:flex;
      justify-content:space-between;
      gap:14px;
      padding:12px 0;
      border-bottom:1px solid var(--line);
      color:#cbd8de;
    }
    .score-line:last-child{border-bottom:0}
    .score-line strong{
      color:var(--text);
      font-family:var(--mono);
      letter-spacing:.4px;
    }
    .section{
      padding:72px 0 0;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:22px;
      margin-bottom:24px;
    }
    .section-title{
      margin:0;
      font-size:clamp(24px, 3vw, 36px);
      line-height:1.16;
      letter-spacing:-.6px;
    }
    .section-note{
      margin:8px 0 0;
      color:var(--muted);
      max-width:720px;
    }
    .search-strip{
      display:grid;
      grid-template-columns:1fr auto;
      gap:14px;
      padding:16px;
      border:1px solid var(--line);
      border-radius:18px;
      background:linear-gradient(180deg, rgba(21,30,40,.86), rgba(13,18,24,.86));
      margin-top:24px;
    }
    .search-strip input{
      min-height:46px;
      border:1px solid var(--line);
      border-radius:13px;
      padding:0 16px;
      background:rgba(6,10,14,.72);
      color:var(--text);
      outline:none;
    }
    .search-strip input:focus{
      border-color:var(--cyan);
      box-shadow:0 0 0 4px rgba(69,234,216,.12);
    }
    .btn{
      min-height:46px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      padding:0 18px;
      border-radius:13px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.04);
      color:var(--text);
      font-weight:800;
      transition:.22s ease;
      white-space:nowrap;
    }
    .btn:hover,.btn:focus-visible{
      transform:translateY(-2px);
      border-color:var(--line-strong);
      box-shadow:0 14px 28px rgba(0,0,0,.24),0 0 0 4px rgba(69,234,216,.1);
      outline:none;
    }
    .btn.primary{
      color:#041313;
      background:linear-gradient(135deg, var(--cyan), var(--cyan-2));
      border-color:transparent;
    }
    .btn.amber{
      color:#171008;
      background:linear-gradient(135deg, var(--amber), var(--amber-2));
      border-color:transparent;
    }
    .layout{
      display:grid;
      grid-template-columns:minmax(0, 1fr) 330px;
      gap:26px;
      align-items:start;
    }
    .filter-box{
      border:1px solid var(--line);
      border-radius:20px;
      background:rgba(17,24,33,.72);
      padding:18px;
      margin-bottom:22px;
    }
    .filter-box h2{
      margin:0 0 12px;
      font-size:18px;
    }
    .content-flow{
      display:grid;
      gap:18px;
    }
    .info-card{
      display:grid;
      grid-template-columns:230px minmax(0, 1fr);
      gap:20px;
      border:1px solid var(--line);
      border-radius:20px;
      background:linear-gradient(135deg, rgba(18,26,35,.94), rgba(14,20,27,.94));
      padding:14px;
      box-shadow:var(--shadow-soft);
      transition:.22s ease;
      overflow:hidden;
    }
    .info-card:hover{
      transform:translateY(-3px);
      border-color:rgba(69,234,216,.32);
      box-shadow:0 22px 50px rgba(0,0,0,.34);
    }
    .cover{
      position:relative;
      min-height:150px;
      border-radius:16px;
      overflow:hidden;
      background:#101820;
    }
    .cover img{
      width:100%;
      height:100%;
      object-fit:cover;
      aspect-ratio:16/10;
      filter:saturate(1.05) contrast(1.04);
    }
    .cover .corner{
      position:absolute;
      left:10px;
      top:10px;
      background:rgba(4,10,13,.78);
      border:1px solid rgba(255,255,255,.18);
      color:var(--cyan-2);
      border-radius:999px;
      padding:5px 9px;
      font-size:12px;
      font-weight:800;
    }
    .card-body{
      min-width:0;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      gap:16px;
      padding:4px 4px 4px 0;
    }
    .card-body h3{
      margin:0;
      font-size:22px;
      line-height:1.32;
    }
    .card-body p{
      margin:8px 0 0;
      color:#aebdc5;
      display:-webkit-box;
      -webkit-line-clamp:3;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .meta{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:10px;
      color:var(--weak);
      font-size:13px;
    }
    .meta strong{
      color:var(--amber-2);
      font-family:var(--mono);
    }
    .read-link{
      color:var(--cyan);
      font-weight:900;
      display:inline-flex;
      align-items:center;
      gap:6px;
    }
    .read-link:hover{color:var(--cyan-2)}
    .side-stack{
      position:sticky;
      top:96px;
      display:grid;
      gap:18px;
    }
    .side-card,.rule-card,.faq-card,.cta-box{
      border:1px solid var(--line);
      border-radius:20px;
      background:rgba(17,24,33,.76);
      padding:20px;
      box-shadow:var(--shadow-soft);
    }
    .side-card h2,.rule-card h2,.faq-card h2,.cta-box h2{
      margin:0 0 14px;
      font-size:20px;
    }
    .topic-list,.plain-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:12px;
    }
    .topic-list li{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:10px;
      align-items:center;
      padding-bottom:12px;
      border-bottom:1px solid var(--line);
      color:#c6d3d9;
    }
    .topic-list li:last-child{border-bottom:0;padding-bottom:0}
    .rank{
      width:24px;height:24px;border-radius:8px;
      display:grid;place-items:center;
      background:rgba(69,234,216,.12);
      color:var(--cyan);
      font-family:var(--mono);
      font-weight:900;
    }
    .heat{font-family:var(--mono);color:var(--amber-2);font-size:13px}
    .plain-list li{
      color:#c6d3d9;
      padding-left:16px;
      position:relative;
    }
    .plain-list li:before{
      content:"";
      position:absolute;
      left:0;top:.75em;
      width:6px;height:6px;border-radius:50%;
      background:var(--cyan);
    }
    .feature-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:24px;
    }
    .feature-large{
      border:1px solid var(--line);
      border-radius:22px;
      overflow:hidden;
      background:var(--panel);
      box-shadow:var(--shadow-soft);
    }
    .feature-large img{
      width:100%;
      aspect-ratio:16/8.2;
      object-fit:cover;
    }
    .feature-copy{padding:24px}
    .feature-copy h3{font-size:26px;line-height:1.25;margin:0 0 10px}
    .feature-copy p{color:var(--muted);margin:0}
    .metric-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
    }
    .metric{
      border:1px solid var(--line);
      border-radius:18px;
      background:rgba(21,30,40,.72);
      padding:20px;
      min-height:132px;
    }
    .metric strong{
      display:block;
      font-family:var(--mono);
      font-size:32px;
      color:var(--cyan-2);
      line-height:1;
    }
    .metric span{
      display:block;
      color:var(--muted);
      margin-top:10px;
      font-size:14px;
    }
    .process{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .step{
      position:relative;
      border:1px solid var(--line);
      border-radius:18px;
      background:linear-gradient(180deg, rgba(21,30,40,.84), rgba(14,20,27,.84));
      padding:22px;
      overflow:hidden;
    }
    .step:before{
      content:attr(data-step);
      position:absolute;
      right:16px;
      top:10px;
      font-family:var(--mono);
      font-size:46px;
      font-weight:900;
      color:rgba(69,234,216,.08);
    }
    .step h3{margin:0 0 10px;font-size:18px}
    .step p{margin:0;color:var(--muted);font-size:14px}
    .rule-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:16px;
    }
    .rule-card{
      padding:22px;
      background:linear-gradient(135deg, rgba(18,26,35,.92), rgba(11,16,22,.92));
    }
    .rule-card p{margin:0;color:var(--muted)}
    .rule-card .icon{
      width:42px;height:42px;border-radius:13px;
      display:grid;place-items:center;
      margin-bottom:14px;
      color:#061313;
      background:linear-gradient(135deg,var(--cyan),var(--cyan-2));
      font-weight:900;
    }
    .pager{
      display:flex;
      justify-content:center;
      gap:8px;
      margin-top:24px;
    }
    .pager a,.pager span{
      min-width:42px;
      height:42px;
      border:1px solid var(--line);
      border-radius:12px;
      display:grid;
      place-items:center;
      color:var(--muted);
      background:rgba(255,255,255,.035);
      transition:.22s ease;
    }
    .pager a:hover,.pager span.active{
      color:#061313;
      background:var(--cyan);
      border-color:transparent;
    }
    .faq-wrap{
      display:grid;
      grid-template-columns:.95fr 1.05fr;
      gap:24px;
      align-items:start;
    }
    details{
      border:1px solid var(--line);
      border-radius:16px;
      background:rgba(17,24,33,.72);
      margin-bottom:12px;
      overflow:hidden;
    }
    summary{
      list-style:none;
      padding:17px 18px;
      cursor:pointer;
      font-weight:850;
      display:flex;
      justify-content:space-between;
      gap:18px;
      align-items:center;
    }
    summary::-webkit-details-marker{display:none}
    summary:after{
      content:"+";
      color:var(--cyan);
      font-family:var(--mono);
      font-size:22px;
    }
    details[open] summary:after{content:"−"}
    details p{
      margin:0;
      padding:0 18px 18px;
      color:var(--muted);
    }
    .cta-box{
      position:relative;
      overflow:hidden;
      background:
        linear-gradient(100deg, rgba(18,26,35,.96), rgba(18,26,35,.78)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      padding:32px;
    }
    .cta-box:before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(90deg, rgba(69,234,216,.09), transparent 58%);
      pointer-events:none;
    }
    .cta-box > *{position:relative}
    .cta-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      margin-top:20px;
    }
    .site-footer{
      margin-top:78px;
      padding:48px 0 30px;
      border-top:1px solid var(--line);
      background:linear-gradient(180deg, rgba(12,17,23,.72), rgba(7,10,14,.95));
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.25fr .75fr 1fr;
      gap:28px;
    }
    .footer-title{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:12px;
    }
    .footer-col h3{
      margin:0 0 12px;
      font-size:17px;
    }
    .footer-col p,.footer-col li{
      color:var(--muted);
      font-size:14px;
    }
    .footer-col ul{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:8px;
    }
    .footer-col a{
      color:#c7d5db;
      transition:.2s ease;
    }
    .footer-col a:hover{color:var(--cyan)}
    .risk-footer{
      margin-top:28px;
      padding:16px;
      border:1px solid rgba(216,107,85,.32);
      border-radius:16px;
      background:rgba(216,107,85,.08);
      color:#ffc0b4;
      font-size:13px;
    }
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      margin-top:18px;
      color:var(--weak);
      font-size:13px;
      border-top:1px solid var(--line);
      padding-top:18px;
    }
    @media (max-width:1024px){
      .hero-grid,.layout,.feature-grid,.faq-wrap{grid-template-columns:1fr}
      .side-stack{position:static}
      .process{grid-template-columns:repeat(2,1fr)}
      .rule-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px, var(--container))}
      .header-inner{min-height:66px}
      .brand-text span{display:none}
      .menu-toggle{display:grid;place-items:center}
      .main-nav{
        position:absolute;
        left:14px;
        right:14px;
        top:72px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        border-radius:18px;
        padding:10px;
        background:rgba(9,13,18,.98);
        box-shadow:var(--shadow);
      }
      .main-nav.open{display:flex}
      .main-nav a{text-align:center;border-radius:13px}
      .hero-grid{padding:34px 22px}
      .category-hero{border-radius:18px}
      .search-strip{grid-template-columns:1fr}
      .info-card{grid-template-columns:1fr}
      .cover{min-height:auto}
      .cover img{aspect-ratio:16/9}
      .card-body{padding:0 2px 4px}
      .section{padding-top:54px}
      .section-head{display:block}
      .metric-grid,.process{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      h1{font-size:32px;letter-spacing:-.8px}
      .hero-desc{font-size:15px}
      .brand-text strong{max-width:164px;font-size:16px}
      .tag-row,.filter-row{gap:8px}
      .filter-chip,.tag{font-size:12px}
      .cta-box{padding:24px}
      .cta-actions .btn{width:100%}
      .pager{justify-content:flex-start;overflow:auto;padding-bottom:4px}
      .copyright{display:grid}
    }