/* roulang page: index */
:root{
    --ink:#0A1310;
    --ink-2:#14211C;
    --paper:#F7F6F2;
    --card:#FFFFFF;
    --accent:#C9F24D;
    --live:#FF5C2B;
    --muted:#6B7770;
    --line:rgba(10,19,16,.10);
    --line-dark:rgba(247,246,242,.14);
    --radius:16px;
    --radius-btn:10px;
    --shadow-soft:0 8px 30px rgba(10,19,16,.08);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button,input{font:inherit;color:inherit}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  ul,ol{padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
  .container-x{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
  @media (min-width:768px){.container-x{padding-left:24px;padding-right:24px}}

  .tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
  .no-scrollbar{-ms-overflow-style:none;scrollbar-width:none}
  .no-scrollbar::-webkit-scrollbar{display:none}

  .brand-mark{
    width:30px;height:30px;flex:0 0 30px;
    background:var(--accent);
    border-radius:8px 8px 8px 2px;
    position:relative;
    transform:skewX(-8deg);
  }
  .brand-mark::after{
    content:"";
    position:absolute;right:6px;top:6px;bottom:6px;width:5px;
    background:var(--ink);
    border-radius:2px;
    opacity:.85;
  }

  .tab-item{
    display:inline-flex;align-items:center;gap:8px;
    padding:9px 18px;border-radius:999px;
    font-size:14px;font-weight:600;letter-spacing:.01em;
    border:1px solid var(--line);
    background:transparent;color:var(--ink);
    transition:background-color .15s ease,border-color .15s ease,color .15s ease;
    white-space:nowrap;
  }
  .tab-item:hover{border-color:rgba(10,19,16,.35);background:rgba(10,19,16,.04)}
  .tab-item.is-active{background:var(--accent);border-color:var(--accent);color:var(--ink)}
  .tab-item.is-active:hover{background:#bef03c;border-color:#bef03c}

  .tab-fade{position:relative}
  .tab-fade::before,.tab-fade::after{
    content:"";position:absolute;top:0;bottom:0;width:28px;pointer-events:none;z-index:2;
  }
  .tab-fade::before{left:0;background:linear-gradient(90deg,var(--paper),rgba(247,246,242,0))}
  .tab-fade::after{right:0;background:linear-gradient(270deg,var(--paper),rgba(247,246,242,0))}

  .nav-link{
    position:relative;font-size:14px;color:var(--muted);
    background-image:linear-gradient(currentColor,currentColor);
    background-repeat:no-repeat;background-position:0 100%;background-size:0 1px;
    transition:color .2s ease,background-size .3s ease;
  }
  .nav-link:hover{color:var(--ink);background-size:100% 1px}

  .title-link{
    background-image:linear-gradient(var(--ink),var(--ink));
    background-repeat:no-repeat;background-position:0 100%;background-size:0 1px;
    transition:background-size .35s ease;
  }
  .card-hover:hover .title-link{background-size:100% 1px}

  .card-base{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius);
    transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
  }
  .card-base:hover{border-color:rgba(10,19,16,.28);box-shadow:var(--shadow-soft);transform:translateY(-2px)}
  .media-zoom{overflow:hidden;border-radius:12px}
  .media-zoom img{transition:transform .5s ease}
  .card-hover:hover .media-zoom img{transform:scale(1.03)}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--radius-btn);
    padding:12px 22px;font-size:15px;font-weight:600;
    border:1px solid transparent;cursor:pointer;
    transition:transform .16s ease,background-color .2s ease,border-color .2s ease,color .2s ease,opacity .2s ease;
    white-space:nowrap;
  }
  .btn:active{transform:translateY(1px)}
  .btn-primary{background:var(--accent);color:var(--ink)}
  .btn-primary:hover{background:#bef03c;transform:translateY(-1px)}
  .btn-dark{background:var(--ink);color:var(--paper)}
  .btn-dark:hover{background:#1c2b25;transform:translateY(-1px)}
  .btn-ghost{background:transparent;color:var(--paper);border-color:rgba(247,246,242,.32)}
  .btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
  .btn-line{background:transparent;color:var(--ink);border-color:var(--line)}
  .btn-line:hover{border-color:var(--ink)}
  .btn[disabled]{opacity:.4;cursor:not-allowed}

  .badge{
    display:inline-flex;align-items:center;gap:6px;
    font-size:12px;font-weight:600;line-height:1;
    padding:5px 10px;border-radius:999px;
    border:1px solid var(--line);color:var(--muted);
    background:var(--card);
  }
  .badge-dark{background:rgba(10,19,16,.72);color:var(--paper);border-color:transparent;backdrop-filter:blur(6px)}
  .badge-live{background:var(--live);color:#fff;border-color:transparent}
  .badge-accent{background:var(--accent);color:var(--ink);border-color:transparent}
  .dot-live{width:7px;height:7px;border-radius:50%;background:currentColor;animation:pulse 2s ease-in-out infinite}
  @keyframes pulse{
    0%,100%{opacity:1;transform:scale(1)}
    50%{opacity:.45;transform:scale(.8)}
  }

  .hero-cover::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(10,19,16,.05) 0%,rgba(10,19,16,.15) 45%,rgba(10,19,16,.85) 100%);
  }

  .count-block{
    background:rgba(247,246,242,.06);
    border:1px solid var(--line-dark);
    border-radius:14px;
    padding:12px 4px;
    text-align:center;
  }
  .count-num{font-size:clamp(26px,3.4vw,38px);font-weight:800;line-height:1;letter-spacing:-.02em;color:var(--accent)}

  .metric-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0}
  @media (min-width:768px){.metric-row{grid-template-columns:repeat(4,minmax(0,1fr))}}
  .metric-cell{padding:22px 20px;border-left:1px solid var(--line);border-top:1px solid var(--line)}
  .metric-cell:nth-child(odd){border-left:none}
  @media (min-width:768px){
    .metric-cell{border-top:none;border-left:1px solid var(--line)}
    .metric-cell:first-child{border-left:none}
    .metric-cell:nth-child(odd){border-left:1px solid var(--line)}
    .metric-cell:first-child{border-left:none}
  }

  .stream-row{display:flex;gap:20px;overflow-x:auto;padding-bottom:8px;scroll-snap-type:x mandatory}
  .stream-row > *{flex:0 0 82%;scroll-snap-align:start}
  @media (min-width:640px){.stream-row > *{flex:0 0 46%}}
  @media (min-width:1024px){
    .stream-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));overflow:visible;padding-bottom:0}
    .stream-row > *{flex:none;scroll-snap-align:none}
  }

  .guide-grid{display:grid;gap:20px}
  @media (min-width:768px){.guide-grid{grid-template-columns:repeat(3,minmax(0,1fr));align-items:start}}
  .guide-card{
    border-radius:var(--radius);border:1px solid var(--line);background:var(--card);
    padding:26px 24px;display:flex;flex-direction:column;gap:14px;
    transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
  }
  .guide-card:hover{border-color:rgba(10,19,16,.3);box-shadow:var(--shadow-soft);transform:translateY(-3px)}
  .guide-card.tall{padding-top:38px;padding-bottom:38px}
  .guide-num{font-size:30px;font-weight:800;letter-spacing:-.03em;color:var(--ink);line-height:1}

  details.faq-item{
    border:1px solid var(--line);
    border-radius:14px;
    background:var(--card);
    overflow:hidden;
    transition:border-color .2s ease,background-color .2s ease;
  }
  details.faq-item + details.faq-item{margin-top:12px}
  details.faq-item[open]{background:#FCFCFA;border-color:rgba(10,19,16,.24)}
  details.faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:19px 22px;min-height:56px;
    font-size:16px;font-weight:600;
  }
  details.faq-item summary::-webkit-details-marker{display:none}
  details.faq-item summary .faq-mark{
    flex:0 0 24px;width:24px;height:24px;border-radius:50%;
    border:1px solid var(--line);display:grid;place-items:center;
    font-size:15px;line-height:1;color:var(--muted);
    transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .25s ease;
  }
  details.faq-item[open] summary .faq-mark{background:var(--accent);border-color:var(--accent);color:var(--ink);transform:rotate(45deg)}
  details.faq-item .faq-body{
    padding:0 22px 22px 22px;border-left:3px solid var(--accent);
    margin-left:22px;padding-left:18px;color:#33403A;
  }

  .field{
    width:100%;height:48px;border-radius:var(--radius-btn);
    border:1px solid var(--line);background:var(--card);
    padding:0 16px;font-size:15px;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .field::placeholder{color:var(--muted)}
  .field:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(201,242,77,.28)}

  .reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease}
  .reveal.is-in{opacity:1;transform:none}

  .search-pill{
    display:flex;align-items:center;gap:8px;
    border:1px solid var(--line);border-radius:999px;
    background:var(--card);padding:0 14px;height:40px;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .search-pill:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(201,242,77,.25)}
  .search-pill input{border:none;background:transparent;outline:none;font-size:14px;width:100%}

  .empty-box{
    border:1px dashed rgba(10,19,16,.24);
    border-radius:var(--radius);
    padding:44px 24px;text-align:center;color:var(--muted);
    background:rgba(255,255,255,.6);
  }

  .footer-link{font-size:14px;color:rgba(247,246,242,.72);transition:color .2s ease}
  .footer-link:hover{color:var(--accent)}

  .cta-band{
    background:var(--accent);color:var(--ink);
    border-radius:20px;
  }

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

/* roulang page: article */
:root{
    --ink:#0A1310;
    --ink-2:#14211C;
    --paper:#F7F6F2;
    --card:#FFFFFF;
    --accent:#C9F24D;
    --accent-deep:#8FD41F;
    --live:#FF5C2B;
    --muted:#6B7770;
    --text:#1B2723;
    --line:rgba(10,19,16,.10);
    --line-dark:rgba(247,246,242,.14);
    --radius-card:16px;
    --radius-btn:10px;
    --shadow-hover:0 8px 30px rgba(10,19,16,.08);
  }

  *{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.7;
    text-rendering:optimizeLegibility;
  }
  a{color:inherit;text-decoration:none}
  img{max-width:100%;display:block}
  button,input{font:inherit;color:inherit}
  button{cursor:pointer;border:none;background:none}
  ul,ol{margin:0;padding:0}
  ::selection{background:var(--accent);color:var(--ink)}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

  .container-x{max-width:1200px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){.container-x{padding:0 24px}}
  .num{font-variant-numeric:tabular-nums}

  /* 品牌标记 */
  .brand-mark{
    width:26px;height:26px;border-radius:8px;flex:0 0 auto;
    background:linear-gradient(135deg,var(--accent),var(--accent-deep));
    position:relative;transform:rotate(-8deg);
    box-shadow:inset 0 0 0 2px rgba(10,19,16,.85);
  }
  .brand-mark::after{content:"";position:absolute;inset:7px;background:var(--ink);border-radius:3px}

  /* 导航 */
  .search-pill{
    display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
    border:1px solid var(--line);border-radius:999px;background:var(--card);
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .search-pill:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(201,242,77,.35)}
  .search-pill input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px}
  .search-pill input::placeholder{color:var(--muted)}

  .nav-link{position:relative;font-size:14px;font-weight:600;padding:4px 0}
  .nav-link::after{
    content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
    background:var(--accent);transform:scaleX(0);transform-origin:left;
    transition:transform .25s ease;
  }
  .nav-link:hover::after{transform:scaleX(1)}

  .tab-item{
    display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:999px;
    border:1px solid var(--line);font-size:14px;font-weight:600;color:var(--ink);
    white-space:nowrap;transition:border-color .15s ease,background-color .15s ease,color .15s ease;
  }
  .tab-item:hover{border-color:rgba(10,19,16,.35)}
  .tab-item.is-active{background:var(--accent);border-color:var(--accent);font-weight:700}

  .no-scrollbar{-ms-overflow-style:none;scrollbar-width:none}
  .no-scrollbar::-webkit-scrollbar{display:none}
  .tab-fade .no-scrollbar{
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
    mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
  }

  /* 按钮 */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--radius-btn);font-weight:700;border:1px solid transparent;
    transition:transform .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease;
  }
  .btn-dark{background:var(--ink);color:var(--paper)}
  .btn-dark:hover{background:var(--ink-2);transform:translateY(-1px);box-shadow:0 10px 24px rgba(10,19,16,.18)}
  .btn-accent{background:var(--accent);color:var(--ink)}
  .btn-accent:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(201,242,77,.45)}
  .btn-outline{border-color:var(--line);background:var(--card);color:var(--ink)}
  .btn-outline:hover{border-color:var(--ink);transform:translateY(-1px)}
  .btn:active{transform:translateY(0)}
  .btn[disabled]{opacity:.4;pointer-events:none}

  /* 徽章与标签 */
  .badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;border:1px solid var(--line);background:var(--card)}
  .badge-soft{background:rgba(201,242,77,.28);border-color:rgba(201,242,77,.7)}
  .badge-live{background:var(--live);border-color:transparent;color:#fff}
  .dot-live{width:6px;height:6px;border-radius:50%;background:currentColor;animation:pulse 2s infinite}
  @keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.8)}}
  @media (prefers-reduced-motion:reduce){
    *{animation:none!important;transition:none!important}
    .reveal{opacity:1!important;transform:none!important}
  }

  /* 面包屑 */
  .crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
  .crumbs a{color:var(--muted)}
  .crumbs a:hover{color:var(--ink)}
  .crumb-sep{color:rgba(10,19,16,.25)}
  .crumb-current{color:var(--ink);font-weight:600}

  /* 文章头部 */
  .article-title{font-size:clamp(27px,4.2vw,46px);line-height:1.22;font-weight:800;letter-spacing:-.02em;margin:16px 0 0}
  .article-meta{
    display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted);
    margin-top:18px;padding-top:18px;border-top:1px solid var(--line);
  }
  .meta-sep{width:3px;height:3px;border-radius:50%;background:rgba(10,19,16,.28)}

  .cover-figure{margin:28px 0 0}
  .cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-card)}
  .cover-figure figcaption{margin-top:10px;font-size:12.5px;color:var(--muted)}

  /* 正文排版 */
  .article-body{max-width:760px;font-size:17.5px;line-height:1.85;color:var(--text)}
  .article-body>*:first-child{margin-top:0}
  .article-body p{margin:0 0 1.2em}
  .article-body h2{
    position:relative;font-size:27px;line-height:1.4;font-weight:700;color:var(--ink);
    margin:2.4em 0 .9em;padding-left:15px;letter-spacing:-.01em;
  }
  .article-body h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:2px;background:var(--accent)}
  .article-body h3{font-size:21px;font-weight:600;color:var(--ink);margin:2em 0 .7em}
  .article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em}
  .article-body li{margin-bottom:.6em}
  .article-body li::marker{color:var(--accent-deep)}
  .article-body a{text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px;text-underline-offset:3px}
  .article-body a:hover{background:rgba(201,242,77,.35)}
  .article-body blockquote{
    margin:1.6em 0;padding:14px 20px;background:rgba(201,242,77,.16);
    border-left:3px solid var(--accent);border-radius:0 12px 12px 0;color:var(--ink);
  }
  .article-body blockquote p:last-child{margin-bottom:0}
  .article-body img{border-radius:var(--radius-card);margin:1.8em auto;width:100%}
  .article-body figure{margin:1.8em 0}
  .article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
  .article-body code{
    font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em;
    background:rgba(10,19,16,.07);padding:2px 6px;border-radius:6px;
  }
  .article-body pre{
    background:#0F1A16;color:#E8F2ED;padding:16px 18px;border-radius:14px;
    overflow-x:auto;font-size:14px;line-height:1.7;margin:1.6em 0;
  }
  .article-body pre code{background:none;padding:0;color:inherit}
  .article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
  .article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
  .article-body th{background:rgba(10,19,16,.04);font-weight:700}
  .article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}

  /* 空态 */
  .empty-state{border:1px dashed rgba(10,19,16,.22);border-radius:var(--radius-card);padding:44px 24px;text-align:center;background:var(--card)}
  .empty-title{font-size:20px;font-weight:800;margin:0 0 8px}
  .empty-desc{color:var(--muted);font-size:14.5px;margin:0 0 20px}

  /* 标签与分享 */
  .tag-pill{
    display:inline-flex;align-items:center;font-size:13px;padding:6px 12px;border-radius:999px;
    border:1px solid var(--line);background:var(--card);
    transition:border-color .18s ease,color .18s ease,transform .18s ease;
  }
  .tag-pill:hover{border-color:var(--accent);transform:translateY(-1px)}
  .icon-btn{
    width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:var(--card);
    display:inline-flex;align-items:center;justify-content:center;
    transition:border-color .18s ease,transform .18s ease,background-color .18s ease;
  }
  .icon-btn:hover{border-color:var(--ink);transform:translateY(-1px);background:rgba(201,242,77,.25)}

  /* 卡片 */
  .post-card{
    display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
    border-radius:var(--radius-card);overflow:hidden;
    transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
  }
  .post-card:hover{border-color:var(--accent);box-shadow:var(--shadow-hover);transform:translateY(-3px)}
  .post-card .thumb{overflow:hidden;aspect-ratio:16/10}
  .post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
  .post-card:hover .thumb img{transform:scale(1.03)}
  .post-body{padding:16px 18px 20px}
  .post-title{
    font-size:16.5px;font-weight:700;line-height:1.5;margin:10px 0 8px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .post-desc{
    font-size:14px;color:var(--muted);line-height:1.65;margin:0;
    display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  }
  .post-meta{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);margin-top:14px}

  /* 侧栏 */
  .side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:20px}
  .side-list{list-style:none}
  .side-list li+li{border-top:1px solid var(--line)}
  .side-list a{display:flex;gap:10px;align-items:flex-start;padding:12px 0;font-size:14.5px;font-weight:600;transition:padding-left .2s ease,color .2s ease}
  .side-list a:hover{padding-left:5px;color:var(--ink-2)}
  .side-num{font-style:italic;font-weight:800;color:var(--accent-deep);font-variant-numeric:tabular-nums}

  /* CTA */
  .cta-band{background:var(--accent);color:var(--ink);border-radius:20px;padding:28px}
  @media (min-width:768px){.cta-band{padding:34px 36px}}
  .subscribe-form{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
  .subscribe-form input{
    height:48px;flex:1 1 220px;min-width:0;border:1px solid rgba(10,19,16,.2);
    border-radius:var(--radius-btn);padding:0 16px;background:rgba(255,255,255,.78);outline:none;
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .subscribe-form input:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(10,19,16,.14)}
  .sub-note{flex:1 1 100%;font-size:13.5px;font-weight:600;margin:2px 0 0}

  /* 页脚 */
  .footer-link{font-size:14px;color:rgba(247,246,242,.72);transition:color .18s ease}
  .footer-link:hover{color:var(--accent)}

  /* 滚动淡入 */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease}
  .reveal.is-in{opacity:1;transform:none}

  @media (max-width:1023px){
    .article-body{font-size:17px}
  }
  @media (max-width:640px){
    .article-title{font-size:26px}
    .article-body{font-size:16.5px;line-height:1.8}
    .article-body h2{font-size:22px}
    .article-body h3{font-size:19px}
    .cover-figure{margin-top:20px}
    .cta-band{border-radius:16px;padding:24px 20px}
  }

/* roulang page: category1 */
:root{
  --ink:#0A1310;
  --ink-2:#14211C;
  --paper:#F7F6F2;
  --card:#FFFFFF;
  --accent:#C9F24D;
  --live:#FF5C2B;
  --muted:#6B7770;
  --line:rgba(10,19,16,.10);
  --line-dark:rgba(247,246,242,.14);
  --r-card:16px;
  --r-btn:10px;
  --shadow-hover:0 8px 30px rgba(10,19,16,.08);
  --shadow-soft:0 2px 12px rgba(10,19,16,.05);
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.72;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,background-size .35s ease}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
::selection{background:var(--accent);color:var(--ink)}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container-x{padding:0 24px}}

.tnum{font-variant-numeric:tabular-nums}

/* ---------- 品牌标记 ---------- */
.brand-mark{
  width:26px;height:26px;display:inline-block;flex:none;
  background:linear-gradient(135deg,var(--accent) 0%,#93D400 100%);
  border-radius:7px;
  clip-path:polygon(16% 0,100% 0,84% 100%,0 100%);
  box-shadow:0 3px 12px rgba(201,242,77,.35);
}

/* ---------- 搜索框 ---------- */
.search-pill{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  border:1px solid var(--line);border-radius:999px;background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-pill:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(201,242,77,.28)}
.search-pill input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:14px}
.search-pill input::placeholder{color:var(--muted)}

/* ---------- 导航链接 / 按钮 / Tabs ---------- */
.nav-link{
  font-size:14px;font-weight:600;color:var(--ink-2);
  background-image:linear-gradient(var(--accent),var(--accent));
  background-repeat:no-repeat;background-size:0% 2px;background-position:0 100%;
  padding-bottom:2px;
}
.nav-link:hover{background-size:100% 2px;color:var(--ink)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn:disabled{opacity:.4;cursor:not-allowed}
.btn-dark{background:var(--ink);color:var(--paper)}
.btn-dark:hover{background:var(--ink-2);box-shadow:0 10px 24px rgba(10,19,16,.2)}
.btn-accent{background:var(--accent);color:var(--ink)}
.btn-accent:hover{box-shadow:0 10px 26px rgba(201,242,77,.42)}
.btn-ghost{border-color:var(--line);background:#fff;color:var(--ink)}
.btn-ghost:hover{border-color:rgba(10,19,16,.32);box-shadow:var(--shadow-soft)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}

.tab-fade{position:relative}
.tab-fade::before,.tab-fade::after{
  content:"";position:absolute;top:0;bottom:0;width:26px;pointer-events:none;z-index:1;
}
.tab-fade::before{left:-1px;background:linear-gradient(90deg,var(--paper),rgba(247,246,242,0))}
.tab-fade::after{right:-1px;background:linear-gradient(270deg,var(--paper),rgba(247,246,242,0))}
.no-scrollbar{-ms-overflow-style:none;scrollbar-width:none}
.no-scrollbar::-webkit-scrollbar{display:none}

.tab-item{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.5);
  font-size:14px;font-weight:600;color:var(--ink-2);white-space:nowrap;
  transition:background-color .15s ease,border-color .15s ease,color .15s ease;
}
.tab-item:hover{border-color:rgba(10,19,16,.32);background:#fff}
.tab-item.is-active{background:var(--accent);border-color:var(--accent);color:var(--ink)}
.tab-item.is-active:hover{background:var(--accent)}

/* ---------- 品牌行移动端收起 ---------- */
.brand-row{transition:max-height .28s ease,opacity .24s ease}
@media (max-width:767px){
  .brand-row{max-height:76px;overflow:hidden}
  .brand-row.is-hidden{max-height:0;opacity:0}
}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(247,246,242,.62)}
.crumb a:hover{color:var(--accent)}
.crumb .sep{opacity:.45}
.crumb .now{color:var(--paper);font-weight:600}

/* ---------- Hero ---------- */
.hero-live{position:relative;overflow:hidden;background:var(--ink);color:var(--paper)}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.34}
.hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(10,19,16,.95) 0%,rgba(10,19,16,.8) 46%,rgba(10,19,16,.52) 100%);
}
.hero-inner{position:relative;z-index:2;padding-top:40px;padding-bottom:56px}
@media (min-width:768px){.hero-inner{padding-top:52px;padding-bottom:76px}}
.hero-title{
  font-size:clamp(30px,5vw,54px);
  font-weight:800;letter-spacing:-.02em;line-height:1.16;margin-top:22px;
}
.hero-sub{margin-top:16px;font-size:16px;line-height:1.75;color:rgba(247,246,242,.78);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-stats{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;
  margin-top:36px;background:var(--line-dark);border:1px solid var(--line-dark);border-radius:14px;overflow:hidden;
}
@media (min-width:768px){.hero-stats{grid-template-columns:repeat(4,minmax(0,1fr))}}
.hero-stat{background:rgba(20,33,28,.72);padding:18px 20px}
.hero-stat b{display:block;font-size:26px;font-weight:800;letter-spacing:-.01em;color:var(--accent);font-variant-numeric:tabular-nums}
.hero-stat span{display:block;margin-top:4px;font-size:13px;color:rgba(247,246,242,.66)}

/* ---------- 通用板块 ---------- */
.section{padding:64px 0}
@media (min-width:768px){.section{padding:88px 0}}
.section-ink{background:var(--ink);color:var(--paper)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted);
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px}
.section-title{font-size:clamp(24px,3vw,32px);font-weight:700;letter-spacing:-.01em;line-height:1.3;margin-top:10px}
.section-desc{font-size:15px;color:var(--muted);margin-top:10px;max-width:680px}
.text-link{
  font-size:14px;font-weight:700;color:var(--ink);
  background-image:linear-gradient(var(--accent),var(--accent));
  background-repeat:no-repeat;background-size:0% 2px;background-position:0 100%;padding-bottom:3px;
}
.text-link:hover{background-size:100% 2px}

/* ---------- 卖点条 ---------- */
.value-grid{display:grid;gap:20px}
@media (min-width:900px){.value-grid{grid-template-columns:1.25fr 1fr}}
.value-lead{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--shadow-soft);
}
.value-lead h3{font-size:20px;font-weight:700;margin-bottom:12px}
.value-lead p{font-size:15px;color:#3d4843;line-height:1.8}
.value-list{display:grid;gap:14px}
.value-item{
  display:flex;gap:14px;align-items:flex-start;background:var(--card);
  border:1px solid var(--line);border-radius:14px;padding:18px 20px;
  transition:border-color .2s ease,box-shadow .3s ease,transform .25s ease;
}
.value-item:hover{border-color:var(--accent);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.value-item .vi-dot{
  flex:none;width:34px;height:34px;border-radius:10px;background:rgba(201,242,77,.24);
  display:grid;place-items:center;font-weight:800;font-size:14px;color:var(--ink);
}
.value-item h4{font-size:16px;font-weight:700;margin-bottom:4px}
.value-item p{font-size:14px;color:var(--muted);line-height:1.7}

/* ---------- 图文交错列表 ---------- */
.zig{display:grid;gap:22px}
.zig-row{
  display:grid;gap:20px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px;transition:border-color .25s ease,box-shadow .3s ease;
}
.zig-row:hover{border-color:rgba(201,242,77,.85);box-shadow:var(--shadow-hover)}
@media (min-width:920px){
  .zig-row{grid-template-columns:1.05fr 1fr;gap:34px;padding:24px}
  .zig-row.rev .zig-media{order:2}
}
.zig-media{position:relative;overflow:hidden;border-radius:12px;background:var(--ink)}
.zig-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease}
.zig-row:hover .zig-media img{transform:scale(1.03)}
.zig-media .zig-tag{
  position:absolute;left:12px;top:12px;
  background:rgba(10,19,16,.82);color:var(--paper);
  font-size:12px;font-weight:700;padding:5px 11px;border-radius:999px;backdrop-filter:blur(4px);
}
.zig-num{
  font-size:42px;font-weight:800;line-height:1;letter-spacing:-.03em;
  color:rgba(10,19,16,.13);font-variant-numeric:tabular-nums;
}
.zig-body h3{font-size:21px;font-weight:700;margin-top:8px}
.zig-body p{margin-top:10px;font-size:15px;color:#3d4843;line-height:1.8}
.zig-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.pill{
  display:inline-flex;align-items:center;font-size:12px;font-weight:600;
  padding:5px 12px;border-radius:999px;border:1px solid var(--line);
  color:var(--ink-2);background:rgba(247,246,242,.9);
}
.pill-accent{background:rgba(201,242,77,.3);border-color:rgba(201,242,77,.75);color:var(--ink)}

/* ---------- 流程 ---------- */
.steps{display:grid;gap:18px}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1100px){.steps{grid-template-columns:repeat(4,minmax(0,1fr))}}
.step{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px 22px;overflow:hidden;
}
.step::before{
  content:"";position:absolute;left:0;top:0;height:100%;width:4px;
  background:linear-gradient(180deg,var(--accent),rgba(201,242,77,0));
}
.step b{font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--muted);font-variant-numeric:tabular-nums}
.step h3{font-size:18px;font-weight:700;margin-top:10px}
.step p{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.75}

/* ---------- 项目卡 ---------- */
.topic-grid{display:grid;gap:20px}
@media (min-width:640px){.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.topic-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.topic-card{
  position:relative;border-radius:var(--r-card);padding:24px 22px;overflow:hidden;
  background:linear-gradient(160deg,rgba(201,242,77,.22) 0%,rgba(247,246,242,.6) 62%,#fff 100%);
  border:1px solid var(--line);
  transition:transform .25s ease,box-shadow .3s ease,border-color .2s ease;
}
.topic-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(201,242,77,.85)}
.topic-card .tc-index{
  position:absolute;right:16px;top:8px;font-size:64px;font-weight:800;
  color:rgba(10,19,16,.06);line-height:1;font-variant-numeric:tabular-nums;
}
.topic-card h3{position:relative;font-size:19px;font-weight:700;margin-top:14px}
.topic-card p{position:relative;font-size:14px;color:#3d4843;margin-top:10px;line-height:1.75}
.topic-card .tc-meta{
  position:relative;display:block;margin-top:16px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;
}
.badge{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;padding:4px 11px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
}
.badge-solid{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.badge-accent{background:var(--accent);border-color:var(--accent);color:var(--ink)}
.badge-live{background:var(--live);border-color:var(--live);color:#fff}
.badge-live::before{
  content:"";width:6px;height:6px;border-radius:50%;background:#fff;animation:pulse 2s infinite;
}
@keyframes pulse{0%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.7)}100%{opacity:1;transform:scale(1)}}

/* ---------- 节奏条 ---------- */
.metric-line{
  display:grid;grid-template-columns:1fr;gap:0;border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark);
}
@media (min-width:768px){.metric-line{grid-template-columns:repeat(4,minmax(0,1fr))}}
.metric{padding:22px 4px;border-bottom:1px solid var(--line-dark)}
@media (min-width:768px){
  .metric{padding:26px 24px;border-bottom:0;border-right:1px solid var(--line-dark)}
  .metric:last-child{border-right:0}
}
.metric b{display:block;font-size:30px;font-weight:800;letter-spacing:-.02em;color:var(--accent);font-variant-numeric:tabular-nums}
.metric span{display:block;margin-top:6px;font-size:13px;color:rgba(247,246,242,.68)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .25s ease;
}
.faq-item[open]{border-color:rgba(201,242,77,.9);box-shadow:var(--shadow-hover)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:58px;padding:16px 20px;font-size:16px;font-weight:700;list-style:none;cursor:pointer;
}
.faq-q::-webkit-details-marker{display:none}
.faq-q::after{
  content:"+";flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;
  font-size:16px;font-weight:700;color:var(--muted);transition:all .2s ease;
}
.faq-item[open] .faq-q::after{content:"−";background:var(--accent);border-color:var(--accent);color:var(--ink)}
.faq-a{padding:0 20px 20px 20px;font-size:15px;line-height:1.85;color:#3d4843}
.faq-a-inner{border-left:3px solid var(--accent);padding-left:14px}

/* ---------- CTA ---------- */
.cta-band{background:var(--accent);color:var(--ink)}
.cta-wrap{display:grid;gap:22px;padding:44px 0}
@media (min-width:900px){.cta-wrap{grid-template-columns:1.1fr 1fr;align-items:center;padding:56px 0;gap:40px}}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;letter-spacing:-.01em}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(10,19,16,.72);max-width:520px}
.cta-form{display:flex;flex-wrap:wrap;gap:10px}
.cta-form input{
  flex:1 1 220px;height:48px;padding:0 16px;border-radius:var(--r-btn);
  border:1px solid rgba(10,19,16,.22);background:rgba(255,255,255,.85);outline:0;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.cta-form input:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(10,19,16,.16)}
.cta-note{margin-top:12px;font-size:13px;color:rgba(10,19,16,.62)}
.cta-ok{display:none;margin-top:12px;font-size:14px;font-weight:700}
.cta-ok.show{display:block}

/* ---------- 翻页文本导航 ---------- */
.pager{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  border-top:1px solid var(--line);padding-top:24px;margin-top:8px;
}
.pager a{font-size:14px;font-weight:700}
.pager a:hover{color:var(--ink)}

/* ---------- 页脚 ---------- */
.footer-link{font-size:14px;color:rgba(247,246,242,.72)}
.footer-link:hover{color:var(--accent)}

/* ---------- 进入动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s ease,transform .55s 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}
}

/* roulang page: category2 */
:root{
    --ink:#0A1310;
    --ink-2:#14211C;
    --paper:#F7F6F2;
    --card:#FFFFFF;
    --accent:#C9F24D;
    --live:#FF5C2B;
    --muted:#6B7770;
    --line:rgba(10,19,16,.10);
    --line-dark:rgba(247,246,242,.14);
    --radius:16px;
    --shadow:0 8px 30px rgba(10,19,16,.08);
    --shadow-lg:0 18px 48px rgba(10,19,16,.14);
  }

  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
    background:var(--paper);
    color:var(--ink);
    font-size:16px;
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button,input{font:inherit;color:inherit}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:8px}

  .container-x{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}

  .brand-mark{
    width:22px;height:22px;display:inline-block;flex:none;
    background:var(--accent);
    clip-path:polygon(0 0,100% 0,100% 60%,60% 100%,0 100%);
    box-shadow:inset 0 0 0 1px rgba(10,19,16,.18);
  }

  /* ---------- 导航 ---------- */
  .search-pill{
    display:flex;align-items:center;gap:8px;
    border:1px solid var(--line);background:#fff;border-radius:999px;
    padding:0 14px;height:42px;
    transition:border-color .2s ease, box-shadow .2s ease;
  }
  .search-pill input{flex:1;border:0;outline:0;background:transparent;font-size:14px;min-width:0}
  .search-pill input::placeholder{color:var(--muted)}
  .search-pill:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(201,242,77,.35)}

  .nav-link{position:relative;font-size:14px;color:var(--muted);transition:color .2s ease;padding-bottom:2px}
  .nav-link:hover{color:var(--ink)}
  .nav-link::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);transition:width .25s ease}
  .nav-link:hover::after{width:100%}

  .tab-fade{
    position:relative;
    -webkit-mask-image:linear-gradient(to right,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
    mask-image:linear-gradient(to right,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
  }
  .no-scrollbar{scrollbar-width:none;-ms-overflow-style:none}
  .no-scrollbar::-webkit-scrollbar{display:none}

  .tab-item{
    display:inline-flex;align-items:center;height:38px;padding:0 16px;
    border-radius:999px;font-size:14px;white-space:nowrap;
    color:rgba(10,19,16,.74);border:1px solid var(--line);background:transparent;
    transition:background-color .15s ease,border-color .15s ease,color .15s ease;
  }
  .tab-item:hover{border-color:rgba(10,19,16,.3);background:#fff;color:var(--ink)}
  .tab-item.is-active{background:var(--accent);border-color:var(--accent);color:var(--ink);font-weight:700}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:10px;font-weight:600;font-size:15px;line-height:1;
    padding:14px 22px;border:1px solid transparent;cursor:pointer;
    transition:transform .18s ease, box-shadow .18s ease, background-color .18s ease, border-color .18s ease, color .18s ease;
  }
  .btn:hover{transform:translateY(-1px)}
  .btn:active{transform:translateY(1px)}
  .btn-dark{background:var(--ink);color:var(--paper);box-shadow:0 6px 18px rgba(10,19,16,.18)}
  .btn-dark:hover{background:var(--ink-2);box-shadow:0 12px 26px rgba(10,19,16,.24)}
  .btn-accent{background:var(--accent);color:var(--ink);box-shadow:0 6px 18px rgba(201,242,77,.3)}
  .btn-accent:hover{box-shadow:0 12px 28px rgba(201,242,77,.4)}
  .btn-ghost{background:transparent;color:var(--paper);border-color:var(--line-dark)}
  .btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
  .btn-outline{background:#fff;border-color:var(--line);color:var(--ink)}
  .btn-outline:hover{border-color:rgba(10,19,16,.3);box-shadow:var(--shadow)}

  /* ---------- Hero ---------- */
  .hero-deep{
    background-color:var(--ink);
    background-image:linear-gradient(180deg,rgba(10,19,16,.80),rgba(10,19,16,.95)),url('/assets/images/backpic/back-2.png');
    background-size:cover;
    background-position:center;
    color:var(--paper);
  }
  .hero-title{
    font-size:clamp(30px,4.6vw,52px);
    font-weight:800;
    line-height:1.14;
    letter-spacing:-0.02em;
    margin-top:20px;
  }
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(247,246,242,.62)}
  .breadcrumb a:hover{color:var(--accent)}

  .pill-dark{
    display:inline-flex;align-items:center;gap:6px;
    border:1px solid var(--line-dark);border-radius:999px;
    padding:5px 12px;font-size:12px;color:rgba(247,246,242,.78);
  }
  .chip-dark{
    display:inline-flex;align-items:center;height:36px;padding:0 15px;border-radius:999px;
    font-size:13.5px;color:rgba(247,246,242,.78);
    border:1px solid var(--line-dark);background:transparent;cursor:pointer;
    transition:background-color .15s ease,border-color .15s ease,color .15s ease;
  }
  .chip-dark:hover{border-color:rgba(201,242,77,.6);color:var(--paper)}
  .chip-dark.is-on{background:var(--accent);border-color:var(--accent);color:var(--ink);font-weight:700}

  .glass-card{
    background:rgba(247,246,242,.06);
    border:1px solid var(--line-dark);
    border-radius:var(--radius);
    backdrop-filter:blur(8px);
    -webkit-backdrop-filter:blur(8px);
  }
  .time-mono{
    font-family:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
    font-variant-numeric:tabular-nums;
    font-size:17px;font-weight:700;color:var(--accent);letter-spacing:.01em;
  }
  .badge-dark{
    display:inline-flex;align-items:center;border:1px solid var(--line-dark);border-radius:999px;
    padding:3px 10px;font-size:12px;color:rgba(247,246,242,.72);white-space:nowrap;
  }
  .badge-live{background:var(--live);border-color:var(--live);color:#fff}

  .pulse-dot{
    width:8px;height:8px;border-radius:50%;background:var(--live);flex:none;
    animation:pulse 2s infinite;
  }
  @keyframes pulse{
    0%{box-shadow:0 0 0 0 rgba(255,92,43,.6)}
    70%{box-shadow:0 0 0 10px rgba(255,92,43,0)}
    100%{box-shadow:0 0 0 0 rgba(255,92,43,0)}
  }

  /* ---------- 板块 ---------- */
  .section{padding:68px 0}
  @media (min-width:768px){.section{padding:96px 0}}
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
  .section-title{font-size:clamp(24px,3vw,32px);font-weight:700;letter-spacing:-0.01em;line-height:1.25}
  .section-desc{margin-top:12px;font-size:15px;color:var(--muted);max-width:640px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);
  }
  .eyebrow::before{content:"";width:18px;height:2px;background:var(--accent);display:inline-block}

  .card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius);
    transition:box-shadow .3s ease,border-color .3s ease,transform .3s ease;
  }
  .card:hover{box-shadow:var(--shadow);border-color:var(--accent);transform:translateY(-2px)}

  .feature-card{position:relative;overflow:hidden;padding:30px 24px 28px}
  .feature-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--accent)}
  .feature-card.bar-ink::before{background:var(--ink)}
  .feature-card.bar-live::before{background:var(--live)}
  .wm-num{
    position:absolute;top:12px;right:18px;
    font-size:64px;font-weight:800;line-height:1;
    color:rgba(10,19,16,.06);
    font-variant-numeric:tabular-nums;
    pointer-events:none;
  }
  .feature-card h3{font-size:19px;font-weight:700;margin-top:6px;letter-spacing:-0.01em}
  .feature-card p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.75}

  .step-item{position:relative;padding-left:60px;padding-bottom:28px}
  .step-item:last-child{padding-bottom:0}
  .step-item::before{
    content:attr(data-step);
    position:absolute;left:0;top:0;
    width:42px;height:42px;border-radius:12px;
    display:grid;place-items:center;
    background:var(--ink);color:var(--accent);
    font-weight:800;font-size:15px;
    font-variant-numeric:tabular-nums;
  }
  .step-item::after{
    content:"";position:absolute;left:20px;top:50px;bottom:6px;width:2px;
    background:linear-gradient(180deg,rgba(10,19,16,.16),rgba(10,19,16,0));
  }
  .step-item:last-child::after{display:none}
  .step-item h3{font-size:17px;font-weight:700}
  .step-item p{margin-top:6px;font-size:14.5px;color:var(--muted)}

  .metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:26px 0;margin-top:8px}
  @media (min-width:768px){.metrics{grid-template-columns:repeat(5,1fr)}}
  .metric{border-left:1px solid var(--line);padding-left:22px}
  .metric:first-child{border-left:0;padding-left:0}
  .metric-num{font-size:clamp(26px,3vw,36px);font-weight:800;letter-spacing:-0.02em;font-variant-numeric:tabular-nums;line-height:1.1}
  .metric-num span{font-size:15px;font-weight:600;color:var(--muted);margin-left:4px;letter-spacing:0}
  .metric-label{margin-top:8px;font-size:13.5px;color:var(--muted)}

  .cover-frame{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
  .cover-frame img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
  .cover-frame:hover img{transform:scale(1.03)}

  .check-list li{position:relative;padding-left:26px;font-size:15px;color:rgba(10,19,16,.78);margin-bottom:12px}
  .check-list li::before{
    content:"";position:absolute;left:0;top:9px;
    width:10px;height:10px;background:var(--accent);
    clip-path:polygon(0 0,100% 0,100% 58%,58% 100%,0 100%);
  }

  /* ---------- FAQ ---------- */
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:14px;
    overflow:hidden;margin-bottom:12px;
    transition:border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
  }
  .faq-item:hover{border-color:rgba(10,19,16,.22)}
  .faq-item[open]{border-color:rgba(10,19,16,.16);border-left:3px solid var(--accent);background:#FCFDF3;box-shadow:var(--shadow)}
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 22px;min-height:60px;
    font-size:16px;font-weight:600;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary::after{
    content:"+";font-size:20px;font-weight:700;color:var(--muted);line-height:1;
    transition:color .2s ease;
  }
  .faq-item[open] summary::after{content:"−";color:var(--ink)}
  .faq-answer{padding:0 22px 22px;font-size:15px;color:var(--muted);line-height:1.8;max-width:860px}

  /* ---------- CTA ---------- */
  .cta-band{background:var(--accent);color:var(--ink)}
  .field{
    height:48px;border:1px solid rgba(10,19,16,.24);border-radius:10px;
    padding:0 16px;background:#fff;font-size:15px;width:100%;
    transition:border-color .18s ease, box-shadow .18s ease;
  }
  .field::placeholder{color:rgba(10,19,16,.45)}
  .field:focus{outline:0;border-color:var(--ink);box-shadow:0 0 0 3px rgba(10,19,16,.14)}

  /* ---------- 前后条目 ---------- */
  .pn-link{font-size:14.5px;color:var(--muted);transition:color .2s ease}
  .pn-link:hover{color:var(--ink)}
  .pn-link span{border-bottom:1px solid rgba(10,19,16,.18);padding-bottom:2px;transition:border-color .2s ease}
  .pn-link:hover span{border-color:var(--accent)}

  /* ---------- 页脚 ---------- */
  .footer-link{font-size:14px;color:rgba(247,246,242,.7);transition:color .2s ease}
  .footer-link:hover{color:var(--accent)}

  /* ---------- 动效 ---------- */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease, transform .6s ease}
  .reveal.is-in{opacity:1;transform:none}

  @media (max-width:767px){
    .section{padding:56px 0}
    .feature-card{padding:26px 20px 24px}
    .wm-num{font-size:52px;top:10px;right:14px}
    .metric{border-left:0;padding-left:0}
    .hero-title{margin-top:16px}
  }

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

/* roulang page: category3 */
:root{
    --ink:#0A1310;
    --ink-2:#14211C;
    --paper:#F7F6F2;
    --card:#FFFFFF;
    --accent:#C9F24D;
    --live:#FF5C2B;
    --muted:#6B7770;
    --line:rgba(10,19,16,.10);
    --line-dark:rgba(247,246,242,.14);
    --radius-card:16px;
    --radius-btn:10px;
    --shadow-hover:0 8px 30px rgba(10,19,16,.08);
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button,input{font:inherit;color:inherit}
  button{background:none;border:0;cursor:pointer}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  ul{list-style:none;padding:0}
  .num{font-variant-numeric:tabular-nums}

  .container-x{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}

  /* 品牌标记 */
  .brand-mark{
    width:26px;height:26px;display:inline-block;flex:0 0 auto;
    background:var(--accent);
    border-radius:7px 2px 7px 2px;
    position:relative;
    box-shadow:inset 0 0 0 1px rgba(10,19,16,.16);
  }
  .brand-mark::after{
    content:"";position:absolute;left:7px;top:7px;width:12px;height:12px;
    background:var(--ink);border-radius:3px 1px 3px 1px;
  }

  /* 导航 */
  .nav-link{
    font-size:14px;color:var(--muted);position:relative;padding:2px 0;
    transition:color .15s ease;
  }
  .nav-link:hover,.nav-link:focus-visible{color:var(--ink)}
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;
    background:var(--accent);transform:scaleX(0);transform-origin:left;
    transition:transform .25s ease;
  }
  .nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1)}

  .search-pill{
    display:flex;align-items:center;gap:8px;
    height:42px;padding:0 16px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:999px;
    transition:border-color .15s ease,box-shadow .15s ease;
  }
  .search-pill:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(201,242,77,.35)}
  .search-pill input{
    flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:14px;
  }
  .search-pill input::placeholder{color:var(--muted)}

  .tab-fade{position:relative}
  .tab-fade::before,.tab-fade::after{
    content:"";position:absolute;top:0;bottom:0;width:28px;pointer-events:none;z-index:2;
  }
  .tab-fade::before{left:0;background:linear-gradient(90deg,var(--paper),rgba(247,246,242,0))}
  .tab-fade::after{right:0;background:linear-gradient(270deg,var(--paper),rgba(247,246,242,0))}
  @media (min-width:1024px){.tab-fade::before,.tab-fade::after{display:none}}

  .no-scrollbar{-ms-overflow-style:none;scrollbar-width:none}
  .no-scrollbar::-webkit-scrollbar{display:none}

  .tab-item{
    display:inline-flex;align-items:center;
    height:38px;padding:0 18px;
    border-radius:999px;
    font-size:14px;font-weight:600;
    color:var(--ink);
    border:1px solid var(--line);
    background:transparent;
    white-space:nowrap;
    transition:background-color .15s ease,border-color .15s ease,color .15s ease;
  }
  .tab-item:hover{border-color:rgba(10,19,16,.32);background:rgba(10,19,16,.03)}
  .tab-item:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
  .tab-item.is-active{
    background:var(--accent);
    border-color:var(--accent);
    color:var(--ink);
    font-weight:700;
  }

  /* 按钮 */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--radius-btn);
    font-weight:700;font-size:15px;
    padding:12px 22px;
    border:1px solid transparent;
    transition:transform .15s ease,box-shadow .2s ease,background-color .15s ease,border-color .15s ease,color .15s ease;
    white-space:nowrap;
  }
  .btn:active{transform:translateY(1px)}
  .btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
  .btn-dark{background:var(--ink);color:var(--paper)}
  .btn-dark:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(10,19,16,.22);background:var(--ink-2)}
  .btn-accent{background:var(--accent);color:var(--ink)}
  .btn-accent:hover{transform:translateY(-1px);box-shadow:0 10px 26px rgba(201,242,77,.4)}
  .btn-ghost{border-color:var(--line);color:var(--ink);background:transparent}
  .btn-ghost:hover{border-color:var(--ink);background:rgba(10,19,16,.04)}
  .btn-light-ghost{border-color:rgba(247,246,242,.3);color:var(--paper);background:transparent}
  .btn-light-ghost:hover{border-color:var(--accent);color:var(--accent)}

  /* 通用徽章 / 标签 */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    font-size:12px;font-weight:700;
    padding:4px 10px;border-radius:999px;
    border:1px solid var(--line);
    color:var(--muted);
    background:transparent;
    white-space:nowrap;
  }
  .badge-accent{background:var(--accent);border-color:var(--accent);color:var(--ink)}
  .badge-live{background:var(--live);border-color:var(--live);color:#fff}
  .badge-soft{background:rgba(10,19,16,.05);border-color:transparent;color:var(--ink)}

  .dot-pulse{
    width:7px;height:7px;border-radius:50%;background:currentColor;
    animation:pulse 2s infinite ease-in-out;
  }
  @keyframes pulse{
    0%,100%{opacity:1;transform:scale(1)}
    50%{opacity:.35;transform:scale(1.5)}
  }

  /* 卡片 */
  .card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    transition:border-color .2s ease,box-shadow .25s ease,transform .25s ease;
    overflow:hidden;
  }
  .card:hover{border-color:var(--accent);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
  .card-media{overflow:hidden;border-radius:12px}
  .card-media img{transition:transform .5s ease;width:100%;height:100%;object-fit:cover}
  .card:hover .card-media img{transform:scale(1.03)}

  .link-underline{
    background-image:linear-gradient(var(--accent),var(--accent));
    background-repeat:no-repeat;
    background-position:0 100%;
    background-size:0 2px;
    transition:background-size .3s ease;
  }
  .card:hover .link-underline,
  .link-underline:hover,
  .link-underline:focus-visible{background-size:100% 2px}

  /* 面包屑 */
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(247,246,242,.7)}
  .crumb a:hover{color:var(--accent)}
  .crumb .sep{opacity:.5}

  /* Hero */
  .cat-hero{
    position:relative;
    background:linear-gradient(100deg,rgba(10,19,16,.94) 0%,rgba(10,19,16,.78) 52%,rgba(10,19,16,.5) 100%),
               url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
    color:var(--paper);
  }
  .cat-hero::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:120px;
    background:linear-gradient(180deg,rgba(10,19,16,0),rgba(10,19,16,.45));
    pointer-events:none;
  }
  .hero-h1{
    font-size:clamp(30px,4.6vw,52px);
    line-height:1.14;
    font-weight:800;
    letter-spacing:-.02em;
  }

  .filter-pill{
    display:inline-flex;align-items:center;height:36px;padding:0 16px;
    border-radius:999px;font-size:13px;font-weight:600;
    border:1px solid rgba(247,246,242,.26);
    color:rgba(247,246,242,.82);
    transition:background-color .15s ease,border-color .15s ease,color .15s ease;
  }
  .filter-pill:hover{border-color:var(--accent);color:var(--accent)}
  .filter-pill.is-on{background:var(--accent);border-color:var(--accent);color:var(--ink)}
  .filter-pill:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

  /* 指标条 */
  .stat-strip{
    display:grid;grid-template-columns:repeat(1,1fr);
    gap:0;border:1px solid var(--line);border-radius:var(--radius-card);
    background:var(--card);overflow:hidden;
  }
  .stat-cell{padding:26px 22px;border-top:1px solid var(--line)}
  .stat-cell:first-child{border-top:0}
  .stat-num{font-size:32px;font-weight:800;letter-spacing:-.02em;line-height:1.1}

  /* 时间轴 */
  .timeline{position:relative;padding-left:0}
  .timeline::before{
    content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;
    background:linear-gradient(180deg,var(--accent),rgba(201,242,77,.15));
  }
  .tl-item{
    position:relative;
    border-bottom:1px dashed var(--line);
  }
  .tl-item:last-child{border-bottom:0}
  .tl-item > summary{
    display:flex;align-items:center;gap:14px;flex-wrap:wrap;
    padding:20px 8px 20px 44px;
    cursor:pointer;list-style:none;
    position:relative;
    transition:background-color .2s ease;
    border-radius:12px;
  }
  .tl-item > summary::-webkit-details-marker{display:none}
  .tl-item > summary:hover{background:rgba(10,19,16,.03)}
  .tl-item > summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
  .tl-node{
    position:absolute;left:3px;top:50%;transform:translateY(-50%);
    width:18px;height:18px;border-radius:5px;
    background:var(--accent);
    border:3px solid var(--paper);
    box-shadow:0 0 0 1px var(--line);
  }
  .tl-step{
    font-size:12px;font-weight:800;letter-spacing:.06em;color:var(--muted);
    min-width:92px;
  }
  .tl-title{font-size:19px;font-weight:700;letter-spacing:-.01em}
  .tl-plus{
    margin-left:auto;width:28px;height:28px;flex:0 0 auto;
    border-radius:50%;border:1px solid var(--line);
    display:grid;place-items:center;font-size:16px;font-weight:700;color:var(--muted);
    transition:transform .25s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  }
  .tl-item[open] > summary{background:rgba(201,242,77,.14);box-shadow:inset 3px 0 0 var(--accent)}
  .tl-item[open] .tl-plus{transform:rotate(45deg);background:var(--ink);border-color:var(--ink);color:var(--paper)}
  .tl-body{padding:2px 24px 24px 44px;color:rgba(10,19,16,.76);font-size:15.5px;line-height:1.85}
  .tl-body p + p{margin-top:10px}
  .tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

  .dim-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:24px;position:relative;overflow:hidden;
    transition:border-color .2s ease,box-shadow .25s ease;
  }
  .dim-card::before{
    content:"";position:absolute;left:0;top:0;width:100%;height:3px;
    background:var(--accent);transform:scaleX(0);transform-origin:left;
    transition:transform .3s ease;
  }
  .dim-card:hover{border-color:rgba(10,19,16,.25);box-shadow:var(--shadow-hover)}
  .dim-card:hover::before{transform:scaleX(1)}

  /* FAQ */
  .faq-item{border:1px solid var(--line);border-radius:14px;background:var(--card);margin-bottom:12px;overflow:hidden}
  .faq-item > summary{
    display:flex;align-items:center;gap:16px;
    min-height:58px;padding:16px 20px;
    font-weight:700;font-size:16px;cursor:pointer;list-style:none;
    transition:background-color .2s ease;
  }
  .faq-item > summary::-webkit-details-marker{display:none}
  .faq-item > summary:hover{background:rgba(10,19,16,.03)}
  .faq-item > summary:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
  .faq-sign{
    margin-left:auto;flex:0 0 auto;width:26px;height:26px;border-radius:50%;
    border:1px solid var(--line);display:grid;place-items:center;font-weight:700;color:var(--muted);
    transition:transform .25s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  }
  .faq-item[open] > summary{background:rgba(201,242,77,.14)}
  .faq-item[open] .faq-sign{transform:rotate(45deg);background:var(--ink);border-color:var(--ink);color:var(--paper)}
  .faq-body{padding:0 20px 20px;color:rgba(10,19,16,.76);font-size:15.5px;line-height:1.85;border-left:3px solid var(--accent);margin-left:20px;padding-left:16px}

  /* CTA */
  .cta-band{
    background:var(--accent);color:var(--ink);
    border-radius:22px;padding:34px;
    display:grid;gap:24px;align-items:center;
  }
  .cta-input{
    height:48px;padding:0 16px;border-radius:10px;
    border:1px solid rgba(10,19,16,.24);
    background:#fff;outline:none;width:100%;
    transition:border-color .15s ease,box-shadow .15s ease;
  }
  .cta-input:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(10,19,16,.16)}

  /* 页脚 */
  .footer-link{font-size:14px;color:rgba(247,246,242,.72);transition:color .15s ease}
  .footer-link:hover,.footer-link:focus-visible{color:var(--accent)}

  .reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease}
  .reveal.in{opacity:1;transform:none}

  @media (min-width:768px){
    .stat-strip{grid-template-columns:repeat(2,1fr)}
    .stat-cell{border-top:0;border-left:1px solid var(--line)}
    .stat-cell:nth-child(2n+1){border-left:0}
    .stat-cell:nth-child(n+3){border-top:1px solid var(--line)}
    .cta-band{grid-template-columns:1.2fr .9fr;padding:44px}
  }
  @media (min-width:1024px){
    .stat-strip{grid-template-columns:repeat(4,1fr)}
    .stat-cell{border-left:1px solid var(--line);border-top:0}
    .stat-cell:first-child{border-left:0}
    .stat-cell:nth-child(n+3){border-top:0}
  }
  @media (max-width:520px){
    .hero-h1{font-size:29px}
    .tl-item > summary{padding-left:38px;gap:10px}
    .tl-body{padding-left:38px}
    .tl-step{min-width:auto;width:100%}
    .tl-title{font-size:17px}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition:none !important}
    .reveal{opacity:1;transform:none}
  }