/* roulang page: index */
:root{
    --ink:#0C0E11; --deep:#14152B; --paper:#F7F6F2; --paper2:#EFEEE8;
    --accent:#12BFA2; --accent-h:#0AA48B; --accent-soft:rgba(18,191,162,.12);
    --ink500:#5A616B; --line:#E3E1DA; --warn:#B4432F;
    --r-sm:8px; --r-md:14px; --r-lg:22px; --r-xl:28px;
    --sh1:0 1px 2px rgba(12,14,17,.06);
    --sh2:0 14px 34px -14px rgba(12,14,17,.22);
    --ease:cubic-bezier(.2,.7,.3,1);
    --maxw:1240px;
    --dock-h:76px;
  }
  *,*::before,*::after{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',sans-serif;
    font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
  input{font: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:4px}
  ::selection{background:var(--accent-soft);color:var(--ink)}

  .container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
  .mono{font-family:'Space Grotesk',ui-monospace,monospace;font-variant-numeric:tabular-nums;letter-spacing:.02em}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.28em;
    text-transform:uppercase;color:var(--ink500);font-weight:500;
  }
  .eyebrow::before{content:"";width:18px;height:1px;background:var(--accent)}
  .section{padding:96px 0}
  .section-sm{padding:64px 0}
  .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px;flex-wrap:wrap}
  .sec-head h2{font-size:clamp(26px,3vw,38px);font-weight:700;line-height:1.2;letter-spacing:-.01em}
  .sec-head p{color:var(--ink500);font-size:14px;max-width:520px;margin-top:10px}
  .textlink{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;border-bottom:1px solid transparent;transition:border-color .2s var(--ease),color .2s var(--ease)}
  .textlink:hover{color:var(--accent-h);border-color:var(--accent)}
  .textlink svg{transition:transform .2s var(--ease)}
  .textlink:hover svg{transform:translateX(4px)}

  /* ---------- Dock ---------- */
  .dock-wrap{position:fixed;top:16px;left:0;right:0;z-index:80;display:flex;justify-content:center;padding:0 16px;pointer-events:none}
  .dock{
    pointer-events:auto;width:100%;max-width:var(--dock-wrap,1080px);
    display:flex;align-items:center;gap:14px;
    background:rgba(247,246,242,.96);border:1px solid var(--line);border-radius:999px;
    padding:9px 10px 9px 18px;box-shadow:var(--sh1);
    transition:height .24s var(--ease),box-shadow .24s var(--ease),padding .24s var(--ease);
  }
  .dock.is-scrolled{box-shadow:0 10px 28px -16px rgba(12,14,17,.32);padding-top:6px;padding-bottom:6px}
  .brand{display:flex;align-items:center;gap:10px;flex:none}
  .brand-mark{width:30px;height:30px;border-radius:9px;background:var(--ink);display:grid;place-items:center;flex:none}
  .brand-mark svg{width:16px;height:16px}
  .brand-name{font-size:15px;font-weight:800;letter-spacing:-.01em;line-height:1.1;white-space:nowrap}
  .brand-sub{display:block;font-size:9px;letter-spacing:.2em;color:var(--ink500);font-weight:500;margin-top:3px}
  .dock-nav{display:flex;align-items:center;gap:2px;margin-left:auto;margin-right:auto}
  .dock-nav a{
    position:relative;font-size:13.5px;font-weight:500;color:var(--ink500);
    padding:7px 11px;border-radius:999px;white-space:nowrap;
    transition:color .18s var(--ease),background-color .18s var(--ease);
  }
  .dock-nav a:hover{color:var(--ink);background:var(--paper2)}
  .dock-nav a.is-active{color:var(--ink);background:var(--paper2);font-weight:700}
  .dock-nav a.is-active::after{content:"";position:absolute;left:50%;bottom:2px;width:4px;height:4px;border-radius:50%;background:var(--accent);transform:translateX(-50%)}
  .dock-tools{display:flex;align-items:center;gap:6px;flex:none}
  .icon-btn{
    width:38px;height:38px;border-radius:999px;display:grid;place-items:center;
    border:1px solid transparent;color:var(--ink500);
    transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  }
  .icon-btn:hover{background:var(--paper2);color:var(--ink)}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:999px;font-size:14px;font-weight:600;
    transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
    border:1px solid transparent;white-space:nowrap;
  }
  .btn-primary{background:var(--ink);color:var(--paper)}
  .btn-primary:hover{background:var(--accent);color:var(--ink)}
  .btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
  .btn-ghost:hover{background:var(--ink);color:var(--paper)}
  .btn-light{background:var(--paper);color:var(--ink)}
  .btn-light:hover{background:var(--accent);color:var(--ink)}
  .btn-sm{height:38px;padding:0 16px;font-size:13px}
  .dock-cta{height:40px;padding:0 18px;font-size:13.5px}
  .dock-search{display:none;align-items:center;gap:8px;background:var(--paper2);border-radius:999px;padding:0 14px;height:40px;border:1px solid var(--line)}
  .dock-search.is-open{display:flex}
  .dock-search input{border:none;background:transparent;outline:none;width:150px;font-size:13.5px;color:var(--ink)}
  .dock-search input::placeholder{color:var(--ink500)}
  .dock-burger{display:none;width:40px;height:40px;border-radius:999px;border:1px solid var(--line);align-items:center;justify-content:center;color:var(--ink)}
  .dock-burger:hover{background:var(--paper2)}

  /* drawer */
  .drawer{
    position:fixed;inset:0;z-index:90;background:var(--paper);
    display:flex;flex-direction:column;padding:20px 24px 32px;
    transform:translateY(-100%);opacity:0;pointer-events:none;
    transition:transform .28s var(--ease),opacity .24s var(--ease);
  }
  .drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
  .drawer-nav{display:flex;flex-direction:column}
  .drawer-nav a{padding:16px 2px;font-size:18px;font-weight:600;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
  .drawer-nav a span{font-size:12px;color:var(--ink500);font-family:'Space Grotesk',monospace}
  .drawer-nav a.is-active{color:var(--accent-h)}
  .drawer-foot{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:12px}
  .drawer-foot .btn{width:100%}

  /* ---------- Hero ---------- */
  .hero{position:relative;overflow:hidden;background:var(--deep);color:var(--paper);padding-top:calc(var(--dock-h) + 46px);padding-bottom:0}
  .hero-bg{
    position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-1.webp');
    background-size:cover;background-position:center;
    opacity:.42;
  }
  .hero-overlay{
    position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(20,21,43,.86) 0%,rgba(12,14,17,.92) 100%);
  }
  .hero-stars{
    position:absolute;inset:0;opacity:.5;
    background-image:
      radial-gradient(1.5px 1.5px at 12% 22%, rgba(255,255,255,.55) 50%, transparent 51%),
      radial-gradient(1px 1px at 32% 68%, rgba(255,255,255,.42) 50%, transparent 51%),
      radial-gradient(1.5px 1.5px at 58% 18%, rgba(18,191,162,.55) 50%, transparent 51%),
      radial-gradient(1px 1px at 74% 54%, rgba(255,255,255,.4) 50%, transparent 51%),
      radial-gradient(1.5px 1.5px at 88% 30%, rgba(255,255,255,.45) 50%, transparent 51%),
      radial-gradient(1px 1px at 46% 84%, rgba(255,255,255,.35) 50%, transparent 51%),
      radial-gradient(1px 1px at 92% 78%, rgba(18,191,162,.4) 50%, transparent 51%),
      linear-gradient(to right, rgba(255,255,255,.035) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(255,255,255,.035) 1px, transparent 1px);
    background-size:auto,auto,auto,auto,auto,auto,auto,24px 24px,24px 24px;
  }
  .hero-inner{position:relative;z-index:2;min-height:560px;display:flex;flex-direction:column;justify-content:center;padding-top:40px;padding-bottom:0}
  .hero .eyebrow{color:rgba(247,246,242,.62)}
  .hero h1{
    font-size:clamp(34px,5.2vw,60px);font-weight:800;line-height:1.08;letter-spacing:-.02em;
    margin:22px 0 0;max-width:900px;
  }
  .hero h1 em{font-style:normal;color:var(--accent)}
  .hero-sub{margin-top:22px;font-size:clamp(15px,1.6vw,18px);line-height:1.8;color:rgba(247,246,242,.78);max-width:620px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
  .hero-actions .btn-ghost{border-color:rgba(247,246,242,.45);color:var(--paper)}
  .hero-actions .btn-ghost:hover{background:var(--paper);color:var(--ink);border-color:var(--paper)}
  .hero-meta{
    display:flex;flex-wrap:wrap;gap:28px;align-items:center;
    margin-top:56px;padding:22px 0;border-top:1px solid rgba(247,246,242,.16);
  }
  .hero-meta div{display:flex;align-items:baseline;gap:8px;font-size:13px;color:rgba(247,246,242,.6)}
  .hero-meta strong{font-family:'Space Grotesk',monospace;font-size:20px;font-weight:700;color:var(--paper)}

  /* ---------- 目录行 ---------- */
  .cat-list{border-top:1px solid var(--line)}
  .cat-row{
    display:flex;align-items:center;gap:24px;
    padding:26px 18px;border-bottom:1px solid var(--line);
    transition:background-color .2s var(--ease),padding .2s var(--ease);
  }
  .cat-row:hover{background:var(--paper2)}
  .cat-num{
    font-family:'Space Grotesk',monospace;font-size:28px;font-weight:700;line-height:1;
    color:var(--line);min-width:52px;transition:color .2s var(--ease);
  }
  .cat-row:hover .cat-num{color:var(--accent)}
  .cat-main{flex:1;min-width:0}
  .cat-title{font-size:20px;font-weight:700;line-height:1.3}
  .cat-desc{font-size:14px;color:var(--ink500);margin-top:6px;line-height:1.7}
  .cat-side{display:flex;align-items:center;gap:18px;flex:none}
  .cat-count{font-family:'Space Grotesk',monospace;font-size:13px;color:var(--ink500);white-space:nowrap}
  .cat-arrow{width:34px;height:34px;border-radius:999px;border:1px solid var(--line);display:grid;place-items:center;color:var(--ink500);transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease)}
  .cat-row:hover .cat-arrow{background:var(--ink);border-color:var(--ink);color:var(--paper);transform:translateX(4px)}

  /* ---------- 精选条目 ---------- */
  .feature{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:44px 0;border-bottom:1px solid var(--line)}
  .feature:last-child{border-bottom:none}
  .feature.rev .feature-media{order:2}
  .feature-media{position:relative;overflow:hidden;border-radius:var(--r-xl);border:1px solid var(--line);box-shadow:var(--sh1)}
  .feature-media img{width:100%;height:340px;object-fit:cover;transition:transform .3s var(--ease)}
  .feature:hover .feature-media img{transform:scale(1.03)}
  .feature-body h3{font-size:clamp(21px,2.2vw,26px);font-weight:700;line-height:1.35;margin:14px 0 0}
  .feature-body p{color:var(--ink500);font-size:15px;line-height:1.85;margin-top:14px;max-width:520px}
  .feature-meta{display:flex;align-items:center;gap:16px;margin-top:22px;font-size:13px;color:var(--ink500)}
  .tag{display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;font-size:12px;font-weight:500;background:var(--accent-soft);color:#0B8571;letter-spacing:.02em}
  .tag-line{background:transparent;border:1px solid var(--line);color:var(--ink500)}

  /* ---------- CMS 卡片 ---------- */
  .card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  .card{
    display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);
    border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh1);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:#D5D2C8}
  .card-cover{aspect-ratio:16/10;overflow:hidden;background:var(--paper2)}
  .card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
  .card:hover .card-cover img{transform:scale(1.03)}
  .card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
  .card-title{font-size:17px;font-weight:700;line-height:1.5;margin-top:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .card-desc{font-size:14px;color:var(--ink500);line-height:1.75;margin-top:10px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
  .card-meta{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--ink500);border-top:1px solid var(--line);margin-top:18px}
  .card-meta time{font-family:'Space Grotesk',monospace}
  .empty-state{
    grid-column:1/-1;min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
    background:var(--paper2);border-radius:var(--r-md);border:1px dashed var(--line);padding:40px 24px;text-align:center;
  }
  .empty-state p{color:var(--ink500);font-size:14.5px}
  .empty-ico{width:44px;height:44px;border-radius:12px;background:var(--paper);display:grid;place-items:center;color:var(--accent);border:1px solid var(--line)}

  /* ---------- 相关推荐横滑 ---------- */
  .rail-wrap{position:relative}
  .rail{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
  .rail-fade{display:none}
  .mini{
    border:1px solid var(--line);border-radius:var(--r-md);background:var(--paper);
    padding:18px;display:flex;flex-direction:column;gap:10px;transition:transform .2s var(--ease),box-shadow .2s var(--ease);
  }
  .mini:hover{transform:translateY(-2px);box-shadow:var(--sh2)}
  .mini img{width:100%;height:112px;object-fit:cover;border-radius:var(--r-sm)}
  .mini h4{font-size:15px;font-weight:600;line-height:1.55}
  .mini span{font-size:12px;color:var(--ink500);font-family:'Space Grotesk',monospace}

  /* ---------- FAQ ---------- */
  .faq{border-top:1px solid var(--line);max-width:900px}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;
    padding:24px 4px;text-align:left;font-size:17.5px;font-weight:600;line-height:1.6;
    transition:color .2s var(--ease);
  }
  .faq-q:hover{color:var(--accent-h)}
  .faq-ico{flex:none;width:26px;height:26px;display:grid;place-items:center;color:var(--ink500);transition:transform .22s var(--ease),color .22s var(--ease)}
  .faq-q[aria-expanded="true"] .faq-ico{transform:rotate(45deg);color:var(--accent)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease)}
  .faq-a p{padding:0 4px 26px;font-size:15px;line-height:1.85;color:var(--ink500);max-width:720px}

  /* ---------- CTA ---------- */
  .cta-box{
    position:relative;overflow:hidden;background:var(--deep);color:var(--paper);
    border-radius:var(--r-xl);padding:64px 56px;
    display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
  }
  .cta-box::after{
    content:"";position:absolute;inset:0;opacity:.35;pointer-events:none;
    background-image:
      radial-gradient(1.5px 1.5px at 20% 30%, rgba(255,255,255,.5) 50%, transparent 51%),
      radial-gradient(1px 1px at 62% 20%, rgba(18,191,162,.6) 50%, transparent 51%),
      radial-gradient(1px 1px at 82% 66%, rgba(255,255,255,.42) 50%, transparent 51%),
      radial-gradient(1px 1px at 38% 80%, rgba(255,255,255,.35) 50%, transparent 51%);
  }
  .cta-box h2{font-size:clamp(24px,2.8vw,34px);font-weight:700;line-height:1.25;position:relative;z-index:2}
  .cta-box p{color:rgba(247,246,242,.72);font-size:14.5px;margin-top:12px;max-width:420px;position:relative;z-index:2}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2}
  .toast{
    position:fixed;left:50%;bottom:36px;transform:translate(-50%,16px);
    background:var(--paper);color:var(--ink);border:1px solid var(--line);
    padding:12px 22px;border-radius:999px;box-shadow:var(--sh2);
    font-size:13.5px;opacity:0;pointer-events:none;transition:opacity .2s var(--ease),transform .2s var(--ease);z-index:120;
  }
  .toast.is-show{opacity:1;transform:translate(-50%,0)}

  /* ---------- Footer ---------- */
  .site-foot{background:var(--ink);color:var(--paper);padding:72px 0 0;margin-top:96px}
  .foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:56px}
  .foot-grid h5{font-size:13px;letter-spacing:.2em;color:rgba(247,246,242,.5);font-weight:500;margin:0 0 20px}
  .foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
  .foot-brand .brand-mark{background:rgba(247,246,242,.08)}
  .foot-brand span{font-size:16px;font-weight:800}
  .foot-grid p{font-size:13.5px;line-height:1.9;color:rgba(247,246,242,.6);max-width:300px}
  .foot-links{display:flex;flex-direction:column;gap:12px}
  .foot-links a{font-size:13.5px;color:rgba(247,246,242,.65);transition:color .18s var(--ease)}
  .foot-links a:hover{color:var(--accent)}
  .foot-bottom{
    border-top:1px solid rgba(247,246,242,.14);padding:24px 0 32px;
    display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
    font-size:12.5px;color:rgba(247,246,242,.5);
  }
  .to-top{display:inline-flex;align-items:center;gap:8px;color:rgba(247,246,242,.7);font-size:12.5px;transition:color .18s var(--ease)}
  .to-top:hover{color:var(--accent)}

  /* ---------- Responsive ---------- */
  @media (max-width:1024px){
    .dock-nav a{padding:6px 9px;font-size:13px}
    .card-grid{grid-template-columns:repeat(2,1fr)}
    .rail{grid-template-columns:repeat(2,1fr)}
    .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
    .feature{gap:36px}
    .feature-media img{height:280px}
  }
  @media (max-width:860px){
    .dock-nav,.dock-tools .dock-search{display:none}
    .dock-burger{display:flex}
    .dock-tools .dock-cta{display:none}
    .dock{padding:8px 10px 8px 14px}
  }
  @media (max-width:768px){
    .section{padding:64px 0}
    .container{padding:0 20px}
    .hero{padding-top:calc(var(--dock-h) + 24px)}
    .hero-inner{min-height:420px;padding-top:24px}
    .hero-meta{gap:18px;margin-top:40px}
    .hero-meta strong{font-size:17px}
    .feature{grid-template-columns:1fr;gap:24px;padding:32px 0}
    .feature.rev .feature-media{order:0}
    .feature-media img{height:230px}
    .cat-row{gap:16px;padding:20px 10px;align-items:flex-start}
    .cat-num{font-size:22px;min-width:36px}
    .cat-title{font-size:17px}
    .cat-desc{font-size:13px}
    .cat-side{gap:10px}
    .cat-count{display:none}
    .card-grid{grid-template-columns:1fr}
    .cta-box{padding:40px 26px;border-radius:var(--r-lg)}
    .foot-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px}
    .site-foot{margin-top:64px;padding-top:56px}
    .faq-q{font-size:16px;padding:20px 2px}
  }
  @media (max-width:520px){
    .rail{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:14px;padding-bottom:10px;-webkit-overflow-scrolling:touch}
    .rail::-webkit-scrollbar{display:none}
    .mini{flex:0 0 76%;scroll-snap-align:start}
    .rail-fade{display:block;position:absolute;right:0;top:0;bottom:10px;width:52px;pointer-events:none;background:linear-gradient(90deg,rgba(247,246,242,0),var(--paper))}
    .hero-actions .btn{width:100%}
    .cta-actions{width:100%}
    .cta-actions .btn{flex:1}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
    .card:hover,.mini:hover{transform:none}
    .feature:hover .feature-media img,.card:hover .card-cover img{transform:none}
  }

/* roulang page: article */
:root{
  --ink-900:#0C0E11;
  --deep:#14152B;
  --paper:#F7F6F2;
  --paper-2:#EFEEE8;
  --paper-3:#FBFAF7;
  --accent:#12BFA2;
  --accent-hover:#0AA48B;
  --accent-soft:rgba(18,191,162,.12);
  --ink-500:#5A616B;
  --line:#E3E1DA;
  --line-dark:rgba(247,246,242,.16);
  --danger:#B4432F;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-cover:28px;
  --sh-1:0 1px 2px rgba(12,14,17,.06);
  --sh-2:0 14px 34px -14px rgba(12,14,17,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --maxw:1240px;
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-900);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding-left:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

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

/* ============ Dock 导航 ============ */
.site-head{
  position:sticky;
  top:0;
  z-index:80;
  padding:14px 0 10px;
  background:linear-gradient(180deg,rgba(247,246,242,.92) 0%,rgba(247,246,242,.72) 70%,rgba(247,246,242,0) 100%);
}
.dock{
  max-width:1080px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:14px;
  padding:9px 12px 9px 16px;
  background:rgba(247,246,242,.97);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--sh-1);
  transition:box-shadow .24s var(--ease),padding .24s var(--ease);
}
.site-head.is-compact .dock{box-shadow:var(--sh-2);padding-top:6px;padding-bottom:6px}
.dock-brand{display:flex;align-items:center;gap:9px;flex-shrink:0}
.brand-mark{width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center}
.brand-mark svg{width:22px;height:22px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text>span,.brand-text{font-size:15px;font-weight:800;letter-spacing:-.01em}
.brand-text em{
  font-style:normal;
  font-family:var(--font-mono);
  font-size:9.5px;
  letter-spacing:.22em;
  color:var(--ink-500);
  font-weight:500;
  margin-top:3px;
  text-transform:uppercase;
}
.dock-nav{display:flex;align-items:center;gap:2px;margin-left:auto;flex-wrap:nowrap}
.dock-nav a{
  position:relative;
  padding:7px 11px;
  font-size:14px;
  color:var(--ink-500);
  border-radius:999px;
  white-space:nowrap;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.dock-nav a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  width:4px;height:4px;
  margin-left:-2px;
  border-radius:50%;
  background:var(--accent);
  opacity:0;
  transform:translateY(3px);
  transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.dock-nav a:hover{color:var(--ink-900)}
.dock-nav a:hover::after{opacity:1;transform:translateY(0)}
.dock-nav a.is-active{background:var(--paper-2);color:var(--ink-900);font-weight:600}
.dock-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}
.icon-btn{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  background:transparent;
  border-radius:50%;
  color:var(--ink-900);
  cursor:pointer;
  transition:background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.icon-btn:hover{background:var(--ink-900);border-color:var(--ink-900);color:var(--paper)}
.icon-btn svg{width:16px;height:16px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.btn svg{width:15px;height:15px;transition:transform .22s var(--ease)}
.btn-primary{background:var(--ink-900);color:var(--paper)}
.btn-primary:hover{background:var(--accent);color:var(--ink-900)}
.btn-primary:hover svg{transform:translateX(3px)}
.btn-ghost{background:transparent;border-color:var(--ink-900);color:var(--ink-900)}
.btn-ghost:hover{background:var(--ink-900);color:var(--paper)}
.btn-ghost:hover svg{transform:translateX(3px)}
.btn-sm{height:38px;padding:0 16px;font-size:13px}
.btn-block{width:100%}

.burger{
  display:none;
  width:38px;height:38px;
  border:1px solid var(--line);
  background:transparent;
  border-radius:50%;
  cursor:pointer;
  padding:0;
  align-items:center;justify-content:center;
  flex-direction:column;gap:5px;
}
.burger span{display:block;width:16px;height:2px;background:var(--ink-900);border-radius:2px;transition:transform .22s var(--ease),opacity .22s var(--ease)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(3.5px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){transform:translateY(-3.5px) rotate(-45deg)}

.dock-search{display:none;max-width:1080px;margin:10px auto 0}
.dock-search.is-open{display:block}
.search-form{
  display:flex;align-items:center;gap:10px;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:10px 12px;
  box-shadow:var(--sh-1);
}
.search-form label{font-size:13px;color:var(--ink-500);white-space:nowrap}
.search-form input{
  flex:1;
  height:38px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:#fff;
  padding:0 12px;
  font-size:14px;
  color:var(--ink-900);
  min-width:0;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-form input::placeholder{color:#9aa0a8}
.search-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}

.drawer{
  display:none;
  position:fixed;inset:0;
  background:var(--paper);
  z-index:95;
  padding:86px 24px 40px;
  overflow-y:auto;
}
.drawer.is-open{display:block}
.drawer-close{
  position:absolute;top:20px;right:22px;
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line);background:transparent;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}
.drawer-close:hover{background:var(--ink-900);color:var(--paper)}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 2px;
  font-size:18px;font-weight:600;
  border-bottom:1px solid var(--line);
}
.drawer-nav a span.num{font-family:var(--font-mono);font-size:12px;color:var(--ink-500);font-weight:500}
.drawer-nav a:hover{color:var(--accent-hover)}
.drawer-cta{margin-top:26px}

/* ============ 面包屑 ============ */
.breadcrumb-wrap{padding-top:26px}
.crumbs{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--ink-500);
  line-height:1.6;
}
.crumbs a{color:var(--ink-500);transition:color .2s var(--ease)}
.crumbs a:hover{color:var(--ink-900)}
.crumbs .sep{color:#c3c1b8}
.crumbs .current{
  color:var(--ink-500);
  max-width:52ch;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ============ 文章布局 ============ */
.article-shell{
  display:grid;
  grid-template-columns:minmax(0,1fr) 232px;
  gap:56px;
  align-items:start;
  padding-top:26px;
  padding-bottom:96px;
}
.article-main{max-width:760px;width:100%}
.article-head{border-bottom:1px solid var(--line);padding-bottom:26px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  border-radius:999px;
  background:var(--accent-soft);
  color:var(--accent-hover);
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
}
.article-head h1{
  margin-top:16px;
  font-size:clamp(28px,4.4vw,44px);
  line-height:1.18;
  font-weight:800;
  letter-spacing:-.02em;
  word-break:break-word;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:18px;
  font-size:13px;
  color:var(--ink-500);
  line-height:1.6;
}
.meta-row .num{font-family:var(--font-mono);font-size:12.5px;letter-spacing:.02em}
.meta-dot{width:3px;height:3px;border-radius:50%;background:#c3c1b8;display:inline-block}

/* 移动端折叠目录 */
.toc-mobile{
  margin-top:26px;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:var(--paper-2);
  padding:12px 16px;
  display:none;
}
.toc-mobile summary{
  list-style:none;
  cursor:pointer;
  font-size:14px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;
}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary .chev{transition:transform .22s var(--ease)}
.toc-mobile[open] summary .chev{transform:rotate(45deg)}
.toc-mobile ol{margin-top:10px;border-top:1px solid var(--line);padding-top:10px}
.toc-mobile li{padding:5px 0;font-size:14px;color:var(--ink-500)}
.toc-mobile li a:hover{color:var(--ink-900)}

/* ============ 正文排版 ============ */
.prose-cn{
  max-width:760px;
  font-size:16.5px;
  line-height:1.92;
  color:#1a1d21;
  padding-top:34px;
  word-break:break-word;
}
.prose-cn > *:first-child{margin-top:0}
.prose-cn p{margin:0 0 1.2em}
.prose-cn h2{
  position:relative;
  margin:48px 0 16px;
  padding-left:14px;
  font-size:clamp(21px,2.4vw,26px);
  font-weight:700;
  line-height:1.35;
  letter-spacing:-.01em;
}
.prose-cn h2::before{
  content:"";
  position:absolute;left:0;top:.28em;
  width:3px;height:1.05em;
  background:var(--accent);
  border-radius:2px;
}
.prose-cn h3{margin:32px 0 12px;font-size:19px;font-weight:600;line-height:1.5}
.prose-cn h4{margin:24px 0 10px;font-size:17px;font-weight:600}
.prose-cn a{
  color:var(--ink-900);
  box-shadow:inset 0 -1px 0 var(--accent);
  transition:color .2s var(--ease),box-shadow .2s var(--ease);
}
.prose-cn a:hover{color:var(--accent-hover);box-shadow:inset 0 -2px 0 var(--accent)}
.prose-cn strong{font-weight:700}
.prose-cn ul,.prose-cn ol{margin:0 0 1.2em;padding-left:1.4em}
.prose-cn ul{list-style:none;padding-left:1.3em}
.prose-cn ul li{position:relative;margin:.45em 0}
.prose-cn ul li::before{
  content:"";
  position:absolute;left:-1.1em;top:.78em;
  width:6px;height:6px;border-radius:50%;
  background:var(--accent);
}
.prose-cn ol{list-style:decimal}
.prose-cn ol li{margin:.45em 0}
.prose-cn ol li::marker{color:var(--accent-hover);font-family:var(--font-mono);font-size:.9em}
.prose-cn blockquote{
  margin:26px 0;
  padding:18px 22px;
  background:var(--paper-2);
  border-left:3px solid var(--accent);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:#2a2e34;
}
.prose-cn blockquote p:last-child{margin-bottom:0}
.prose-cn img{border-radius:var(--r-md);margin:26px 0;width:100%}
.prose-cn figure{margin:26px 0}
.prose-cn figcaption{font-size:13px;color:var(--ink-500);text-align:center;margin-top:10px}
.prose-cn hr{
  border:0;height:1px;background:var(--line);
  margin:40px 0;
}
.prose-cn table{
  width:100%;
  border-collapse:collapse;
  margin:26px 0;
  font-size:15px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  overflow:hidden;
}
.prose-cn th{background:var(--paper-2);text-align:left;font-weight:600}
.prose-cn th,.prose-cn td{padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.prose-cn tbody tr:nth-child(even){background:var(--paper-3)}
.prose-cn tbody tr:last-child td{border-bottom:0}
.prose-cn code{
  font-family:var(--font-mono);
  font-size:.88em;
  background:var(--paper-2);
  border-radius:4px;
  padding:2px 6px;
}

/* 空态 */
.empty-state{
  margin:44px 0 8px;
  padding:56px 24px;
  background:var(--paper-2);
  border-radius:var(--r-md);
  text-align:center;
}
.empty-state .star{width:34px;height:34px;margin:0 auto 14px}
.empty-state h2{font-size:20px;font-weight:700;padding:0;margin:0 0 8px}
.empty-state h2::before{display:none}
.empty-state p{color:var(--ink-500);font-size:15px;margin-bottom:22px}

/* 标签 */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:44px}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 13px;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:12.5px;
  color:var(--ink-500);
  background:transparent;
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
}
.tag:hover{border-color:var(--accent);color:var(--accent-hover);background:var(--accent-soft)}

/* 收藏分享条 */
.share-bar{
  margin-top:26px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 20px;
  background:var(--paper-2);
  border-radius:var(--r-md);
}
.share-bar .share-title{font-size:14px;font-weight:600}
.share-actions{display:flex;flex-wrap:wrap;gap:8px}

/* 继续阅读双栏 */
.pager{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-top:52px;
}
.pager-card{
  display:flex;flex-direction:column;gap:6px;
  padding:18px 20px;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:var(--paper);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.pager-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#d6d3c9}
.pager-card .k{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--ink-500);text-transform:uppercase}
.pager-card .t{font-size:16px;font-weight:600;display:flex;align-items:center;justify-content:space-between;gap:10px}
.pager-card .t svg{width:15px;height:15px;flex-shrink:0;transition:transform .22s var(--ease)}
.pager-card:hover .t svg{transform:translateX(4px)}

/* 相关推荐 */
.related{margin-top:64px}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:16px;
  margin-bottom:22px;
}
.section-head h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;letter-spacing:-.01em}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;color:var(--ink-500);
  transition:color .2s var(--ease);
}
.link-more svg{width:14px;height:14px;transition:transform .2s var(--ease)}
.link-more:hover{color:var(--ink-900)}
.link-more:hover svg{transform:translateX(4px)}
.card-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.card{
  display:flex;flex-direction:column;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#d6d3c9}
.card-cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--paper-2)}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.card:hover .card-cover img{transform:scale(1.03)}
.card-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body .badge{align-self:flex-start;font-size:11px;padding:4px 10px}
.card-body h3{font-size:16px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:13.5px;color:var(--ink-500);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{
  margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;
  font-size:12px;color:var(--ink-500);
  font-family:var(--font-mono);
}
.card-meta svg{width:14px;height:14px;transition:transform .22s var(--ease)}
.card:hover .card-meta svg{transform:translateX(4px)}

.back-row{margin-top:44px;display:flex;gap:12px;flex-wrap:wrap}

/* ============ 侧栏目录 ============ */
.article-aside{position:sticky;top:100px}
.toc-box{
  border-left:1px solid var(--line);
  padding-left:16px;
}
.toc-box .toc-title{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.22em;
  color:var(--ink-500);
  text-transform:uppercase;
  margin-bottom:12px;
}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;
  padding:5px 0 5px 10px;
  margin-left:-11px;
  font-size:13.5px;
  line-height:1.55;
  color:var(--ink-500);
  border-left:2px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.toc-list a:hover{color:var(--ink-900)}
.toc-list a.is-active{color:var(--ink-900);font-weight:600;border-left-color:var(--accent)}
.toc-list a.lv3{padding-left:22px;font-size:12.5px}

/* ============ 文末 CTA ============ */
.cta-section{padding-bottom:88px}
.cta-block{
  position:relative;
  overflow:hidden;
  background:linear-gradient(160deg,var(--deep) 0%,var(--ink-900) 100%);
  border-radius:var(--r-cover);
  padding:56px;
  color:var(--paper);
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;
}
.cta-block::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    radial-gradient(1.5px 1.5px at 18% 26%,rgba(255,255,255,.10) 50%,transparent 51%),
    radial-gradient(1px 1px at 62% 14%,rgba(255,255,255,.09) 50%,transparent 51%),
    radial-gradient(1.5px 1.5px at 84% 62%,rgba(18,191,162,.22) 50%,transparent 51%),
    radial-gradient(1px 1px at 34% 78%,rgba(255,255,255,.08) 50%,transparent 51%),
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:auto,auto,auto,auto,24px 24px,24px 24px;
  pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:560px}
.cta-copy .eyebrow{
  font-family:var(--font-mono);
  font-size:11px;letter-spacing:.24em;
  color:var(--accent);
  text-transform:uppercase;
}
.cta-copy h2{
  margin-top:12px;
  font-size:clamp(24px,3vw,34px);
  font-weight:800;
  line-height:1.25;
  letter-spacing:-.02em;
}
.cta-copy p{margin-top:12px;font-size:15px;color:rgba(247,246,242,.72);line-height:1.8}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}
.cta-actions .btn-primary{background:var(--accent);color:var(--ink-900)}
.cta-actions .btn-primary:hover{background:var(--paper);color:var(--ink-900)}
.cta-actions .btn-ghost{border-color:rgba(247,246,242,.5);color:var(--paper)}
.cta-actions .btn-ghost:hover{background:var(--paper);color:var(--ink-900);border-color:var(--paper)}

/* ============ 页脚 ============ */
.site-foot{background:var(--ink-900);color:var(--paper);padding:64px 0 28px}
.foot-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:36px;
}
.foot-brand{
  display:flex;align-items:center;gap:9px;
  font-size:16px;font-weight:800;
  letter-spacing:-.01em;
}
.foot-brand .brand-mark{width:20px;height:20px}
.site-foot p{font-size:13.5px;line-height:1.85;color:rgba(247,246,242,.66);margin-top:14px;max-width:34ch}
.site-foot h5{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  color:rgba(247,246,242,.5);
  font-weight:500;
  margin-bottom:16px;
  text-transform:uppercase;
}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links a{
  font-size:14px;
  color:rgba(247,246,242,.82);
  transition:color .2s var(--ease),transform .2s var(--ease);
  align-self:flex-start;
}
.foot-links a:hover{color:var(--accent);transform:translateX(3px)}
.foot-bottom{
  margin-top:48px;
  padding-top:20px;
  border-top:1px solid var(--line-dark);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:rgba(247,246,242,.55);
}
.to-top{
  display:inline-flex;align-items:center;gap:6px;
  color:rgba(247,246,242,.8);
  font-size:12.5px;
  transition:color .2s var(--ease);
}
.to-top:hover{color:var(--accent)}

/* ============ Toast ============ */
.toast{
  position:fixed;
  left:50%;
  bottom:32px;
  transform:translate(-50%,16px);
  background:var(--paper);
  color:var(--ink-900);
  border:1px solid var(--line);
  border-radius:999px;
  padding:11px 22px;
  font-size:14px;
  box-shadow:var(--sh-2);
  opacity:0;
  pointer-events:none;
  transition:opacity .22s var(--ease),transform .22s var(--ease);
  z-index:120;
}
.toast.is-show{opacity:1;transform:translate(-50%,0)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .article-shell{grid-template-columns:minmax(0,1fr);gap:0;padding-bottom:80px}
  .article-aside{display:none}
  .toc-mobile{display:block}
}
@media (max-width:1080px){
  .dock-nav{display:none}
  .dock-actions .btn{display:none}
  .burger{display:inline-flex}
  .dock{max-width:calc(100% - 32px)}
}
@media (max-width:1024px){
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .card-grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-block{padding:44px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .site-head{padding-top:10px}
  .article-shell{padding-bottom:64px}
  .article-head h1{font-size:clamp(26px,7.2vw,34px)}
  .prose-cn{font-size:16px;padding-top:28px}
  .prose-cn h2{margin-top:40px}
  .prose-cn table{display:block;overflow-x:auto;white-space:nowrap}
  .pager{grid-template-columns:1fr}
  .card-grid-3{grid-template-columns:1fr}
  .cta-block{padding:34px 24px;border-radius:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .share-bar{flex-direction:column;align-items:flex-start}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .site-foot{padding:52px 0 24px}
  .crumbs .current{max-width:100%}
}
@media (max-width:520px){
  .btn{height:44px;padding:0 18px;font-size:14px}
  .btn-sm{height:38px;padding:0 14px;font-size:13px}
  .empty-state{padding:40px 18px}
  .search-form{flex-wrap:wrap}
  .search-form label{width:100%}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  .card:hover,.pager-card:hover{transform:none}
  .card:hover .card-cover img{transform:none}
}

/* roulang page: category1 */
:root{
  --ink-900:#0C0E11;
  --deep:#14152B;
  --paper:#F7F6F2;
  --paper-2:#EFEEE8;
  --accent:#12BFA2;
  --accent-hover:#0AA48B;
  --accent-soft:rgba(18,191,162,.12);
  --accent-text:#0A7F6D;
  --ink-500:#5A616B;
  --line:#E3E1DA;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-cover:28px;
  --shadow-1:0 1px 2px rgba(12,14,17,.06);
  --shadow-2:0 14px 34px -14px rgba(12,14,17,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --maxw:1240px;
  --mono:ui-monospace,"SFMono-Regular","IBM Plex Mono","Space Grotesk",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-900);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
@media (min-width:1440px){:root{--maxw:1320px}}

/* ---------- 浮动 Dock 导航 ---------- */
.site-head{position:fixed;top:16px;left:0;right:0;z-index:60;padding:0 24px}
.dock{
  display:flex;align-items:center;gap:10px;
  max-width:1140px;margin:0 auto;
  padding:10px 12px 10px 16px;
  background:rgba(247,246,242,.97);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--shadow-1);
  transition:padding .24s var(--ease),box-shadow .24s var(--ease);
}
.dock.is-scrolled{padding-top:6px;padding-bottom:6px;box-shadow:var(--shadow-2)}
.dock-brand{display:inline-flex;align-items:center;gap:9px;font-size:15px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.brand-mark{width:27px;height:27px;display:grid;place-items:center;border-radius:9px;background:var(--ink-900);flex:none}
.brand-mark svg{width:15px;height:15px}
.dock-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.dock-nav a{
  position:relative;display:inline-block;font-size:14px;color:var(--ink-500);
  padding:8px 11px;border-radius:999px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.dock-nav a:hover{color:var(--ink-900);background:var(--paper-2)}
.dock-nav a::after{
  content:"";position:absolute;left:50%;bottom:3px;width:4px;height:4px;border-radius:50%;
  background:var(--accent);transform:translateX(-50%) scale(0);
  transition:transform .2s var(--ease);
}
.dock-nav a:hover::after{transform:translateX(-50%) scale(1)}
.dock-nav a.is-active{background:var(--paper-2);color:var(--ink-900);font-weight:600}
.dock-nav a.is-active::after{display:none}
.dock-actions{display:flex;align-items:center;gap:8px;margin-left:10px}
.icon-btn{
  width:38px;height:38px;display:grid;place-items:center;border-radius:999px;
  border:1px solid var(--line);color:var(--ink-500);background:transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.icon-btn:hover{color:var(--ink-900);border-color:var(--ink-900);background:var(--paper-2)}
.icon-btn svg{width:17px;height:17px}
.dock-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:40px;padding:0 18px;border-radius:999px;
  background:var(--ink-900);color:var(--paper);font-size:14px;font-weight:600;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.dock-cta:hover{background:var(--accent);color:var(--ink-900)}
.menu-btn{display:none}
.dock-search{
  max-width:1140px;margin:10px auto 0;
  display:none;align-items:center;gap:10px;
  background:var(--paper);border:1px solid var(--line);border-radius:999px;
  padding:8px 10px 8px 18px;box-shadow:var(--shadow-2);
}
.dock-search.is-open{display:flex}
.dock-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.dock-search svg{width:16px;height:16px;color:var(--ink-500);flex:none}
.dock-search input{flex:1;border:0;background:transparent;padding:7px 0;color:var(--ink-900);font-size:15px}
.dock-search input:focus{outline:none}
.dock-search-btn{
  height:36px;padding:0 18px;border-radius:999px;background:var(--ink-900);color:var(--paper);
  font-size:13px;font-weight:600;transition:background .2s var(--ease),color .2s var(--ease);
}
.dock-search-btn:hover{background:var(--accent);color:var(--ink-900)}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--paper);
  padding:24px 24px 40px;display:none;flex-direction:column;overflow-y:auto;
}
.drawer.is-open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.drawer-links{margin-top:8px}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:17px 4px;border-bottom:1px solid var(--line);
  font-size:18px;font-weight:600;color:var(--ink-900);
}
.drawer-links a.is-active{color:var(--accent-text)}
.drawer-links a span{font-size:13px;color:var(--ink-500);font-family:var(--mono);font-weight:400}
.drawer-foot{margin-top:auto;padding-top:28px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-dark{background:var(--ink-900);color:var(--paper)}
.btn-dark:hover{background:var(--accent);color:var(--ink-900)}
.btn-light{background:var(--paper);color:var(--ink-900)}
.btn-light:hover{background:var(--accent);color:var(--ink-900)}
.btn-ghost{border-color:rgba(247,246,242,.34);color:var(--paper);background:transparent}
.btn-ghost:hover{background:var(--paper);color:var(--ink-900);border-color:var(--paper)}
.btn-outline{border-color:var(--ink-900);color:var(--ink-900);background:transparent}
.btn-outline:hover{background:var(--ink-900);color:var(--paper)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600;color:var(--ink-900)}
.link-arrow svg{transition:transform .2s var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}
.link-arrow:hover{color:var(--accent-text)}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  min-height:420px;display:flex;align-items:flex-end;
  padding:152px 0 56px;
  background:var(--deep) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  color:var(--paper);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(178deg,rgba(20,21,43,.9) 0%,rgba(12,14,17,.93) 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;opacity:.55;
  background-image:
    radial-gradient(circle at 1px 1px,rgba(247,246,242,.10) 1px,transparent 0),
    linear-gradient(rgba(247,246,242,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(247,246,242,.035) 1px,transparent 1px);
  background-size:26px 26px,26px 26px,26px 26px;
  pointer-events:none;
}
.hero-inner{position:relative;z-index:1;max-width:840px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12px;letter-spacing:.26em;
  color:var(--accent);margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--accent);display:inline-block}
.page-hero h1{
  font-size:clamp(30px,4.4vw,50px);font-weight:800;
  line-height:1.14;letter-spacing:-.02em;max-width:15em;
}
.hero-sub{
  margin-top:18px;font-size:clamp(15px,1.5vw,18px);line-height:1.75;
  color:rgba(247,246,242,.78);max-width:640px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:14px 34px;
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(247,246,242,.18);
  font-family:var(--mono);font-size:13px;color:rgba(247,246,242,.62);
}
.hero-meta b{color:var(--paper);font-weight:600;margin-right:8px}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--paper-2)}
.section-tight{padding:72px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:44px}
.sec-eyebrow{
  display:block;font-family:var(--mono);font-size:12px;letter-spacing:.24em;
  color:var(--accent-text);margin-bottom:12px;
}
.sec-head h2{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.26;letter-spacing:-.01em;max-width:18em}
.sec-desc{color:var(--ink-500);font-size:15px;max-width:600px;margin-top:12px}

/* ---------- 四步流程 ---------- */
.steps-grid{display:grid;grid-template-columns:minmax(0,1fr) 366px;gap:56px;align-items:start}
.steps{position:relative}
.step{
  position:relative;display:grid;grid-template-columns:64px minmax(0,1fr);
  gap:20px;padding-bottom:44px;
}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:31.5px;top:56px;bottom:0;width:1px;background:var(--line);
}
.step:last-child::before{display:none}
.step-num{
  width:46px;height:46px;display:grid;place-items:center;
  border:1px solid var(--line);border-radius:999px;background:var(--paper);
  font-family:var(--mono);font-size:15px;color:var(--ink-500);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.step:hover .step-num{border-color:var(--accent);color:var(--ink-900)}
.step-body h3{font-size:21px;font-weight:600;line-height:1.5;margin-bottom:8px}
.step-body p{color:var(--ink-500);font-size:15px;line-height:1.8;max-width:600px}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;
  border-radius:999px;border:1px solid var(--line);background:var(--paper);
  font-size:12px;color:var(--ink-500);
}
.tag-accent{background:var(--accent-soft);border-color:transparent;color:var(--accent-text);font-weight:600}

/* 要点速览卡 */
.check-card{
  position:sticky;top:104px;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px 22px;box-shadow:var(--shadow-1);
}
.check-card h3{font-size:16px;font-weight:700;letter-spacing:.01em}
.check-sub{font-size:13px;color:var(--ink-500);margin-top:6px}
.check-list{margin-top:16px}
.check-list li{
  display:flex;gap:11px;align-items:flex-start;
  padding:11px 0;border-top:1px solid var(--line);
  font-size:14px;line-height:1.65;color:var(--ink-900);
}
.check-ico{
  width:19px;height:19px;flex:none;margin-top:3px;border-radius:999px;
  display:grid;place-items:center;background:var(--accent-soft);
}
.check-ico svg{width:11px;height:11px;color:var(--accent-text)}
.check-note{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;line-height:1.7;color:var(--ink-500);
}

/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.scene-card{
  display:flex;flex-direction:column;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.scene-media{overflow:hidden;background:var(--paper-2)}
.scene-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .24s var(--ease)}
.scene-card:hover .scene-media img{transform:scale(1.03)}
.scene-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.scene-body h3{font-size:18px;font-weight:600;line-height:1.5}
.scene-body p{font-size:14px;color:var(--ink-500);line-height:1.78}
.scene-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  font-family:var(--mono);font-size:12px;color:var(--ink-500);
  display:flex;justify-content:space-between;gap:10px;
}

/* ---------- 核对表 ---------- */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--paper);box-shadow:var(--shadow-1);
}
table{width:100%;border-collapse:collapse;font-size:14px;min-width:680px}
thead th{
  background:var(--paper-2);text-align:left;font-weight:600;font-size:13px;
  letter-spacing:.04em;color:var(--ink-900);
  padding:15px 20px;border-bottom:1px solid var(--line);white-space:nowrap;
}
tbody td{padding:16px 20px;border-bottom:1px solid var(--line);color:var(--ink-500);line-height:1.7;vertical-align:top}
tbody tr:last-child td{border-bottom:0}
tbody tr:nth-child(even){background:rgba(239,238,232,.5)}
tbody td strong{color:var(--ink-900);font-weight:600}
.cell-key{display:flex;align-items:center;gap:9px;color:var(--ink-900);font-weight:600}
.cell-key i{width:5px;height:5px;border-radius:50%;background:var(--accent);flex:none;display:inline-block}
.table-note{margin-top:14px;font-size:13px;color:var(--ink-500)}

/* ---------- 排查列表 ---------- */
.issue-list{border-top:1px solid var(--line)}
.issue{
  display:grid;grid-template-columns:60px minmax(0,1fr);gap:22px;
  padding:26px 0;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.issue:hover{background:var(--paper-2)}
.issue-num{font-family:var(--mono);font-size:22px;color:var(--line);line-height:1.3;transition:color .2s var(--ease)}
.issue:hover .issue-num{color:var(--accent)}
.issue-body h3{font-size:18px;font-weight:600;margin-bottom:6px}
.issue-body p{font-size:15px;color:var(--ink-500);line-height:1.8;max-width:700px}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;text-align:left;font-size:17px;font-weight:600;line-height:1.6;color:var(--ink-900);
}
.faq-q:hover{color:var(--accent-text)}
.faq-ico{width:22px;height:22px;flex:none;position:relative;transition:transform .22s var(--ease)}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink-900);
  transform:translate(-50%,-50%);
}
.faq-ico::before{width:14px;height:1.5px}
.faq-ico::after{width:1.5px;height:14px;transition:opacity .22s var(--ease)}
.faq-item.is-open .faq-ico{transform:rotate(45deg)}
.faq-item.is-open .faq-ico::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease)}
.faq-a p{padding:0 0 24px;max-width:720px;font-size:15px;line-height:1.85;color:var(--ink-500)}

/* ---------- CTA ---------- */
.cta-block{
  position:relative;overflow:hidden;
  background:linear-gradient(158deg,#14152B 0%,#0C0E11 100%);
  border-radius:var(--r-cover);padding:64px 56px;color:var(--paper);
}
.cta-block::after{
  content:"";position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:radial-gradient(circle at 1px 1px,rgba(247,246,242,.10) 1px,transparent 0);
  background-size:26px 26px;
}
.cta-inner{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(23px,2.6vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.01em;max-width:16em}
.cta-inner p{margin-top:12px;font-size:15px;color:rgba(247,246,242,.72);max-width:460px}
.cta-btns{display:flex;flex-wrap:wrap;gap:10px}
.back-row{display:flex;justify-content:center;margin-top:56px}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink-900);color:rgba(247,246,242,.72);padding:76px 0 32px;font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.4fr;gap:44px}
.foot-brand{display:flex;align-items:center;gap:10px;color:var(--paper);font-size:16px;font-weight:800;margin-bottom:16px}
.foot-brand .brand-mark{background:rgba(247,246,242,.09)}
.site-foot p{line-height:1.85;max-width:360px;color:rgba(247,246,242,.66)}
.foot-grid h5{font-size:13px;font-weight:600;letter-spacing:.2em;color:var(--paper);margin-bottom:16px}
.foot-links{display:flex;flex-direction:column;gap:11px}
.foot-links a{color:rgba(247,246,242,.66);transition:color .2s var(--ease)}
.foot-links a:hover{color:var(--accent)}
.foot-bottom{
  margin-top:56px;padding-top:22px;border-top:1px solid rgba(247,246,242,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,246,242,.5);
}
.to-top{display:inline-flex;align-items:center;gap:7px;color:rgba(247,246,242,.72);transition:color .2s var(--ease)}
.to-top:hover{color:var(--accent)}

/* ---------- Toast ---------- */
.toast{
  position:fixed;left:50%;bottom:32px;z-index:120;
  transform:translate(-50%,20px);opacity:0;pointer-events:none;
  background:var(--paper);color:var(--ink-900);
  border:1px solid var(--line);border-radius:999px;
  padding:12px 22px;font-size:14px;box-shadow:var(--shadow-2);
  transition:opacity .24s var(--ease),transform .24s var(--ease);
}
.toast.is-show{opacity:1;transform:translate(-50%,0)}

/* ---------- 响应式 ---------- */
@media (max-width:1120px){
  .steps-grid{grid-template-columns:minmax(0,1fr) 330px;gap:40px}
}
@media (max-width:1080px){
  .dock-nav{display:none}
  .menu-btn{display:grid}
  .dock-actions{margin-left:auto}
}
@media (max-width:1024px){
  .section{padding:72px 0}
  .steps-grid{grid-template-columns:1fr}
  .check-card{position:static}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:820px){
  .page-hero{padding:130px 0 48px;min-height:380px}
  .cta-block{padding:44px 28px;border-radius:var(--r-lg)}
  .cta-btns{width:100%}
  .cta-btns .btn{flex:1 1 auto}
}
@media (max-width:768px){
  .scene-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:32px}
  .foot-bottom{margin-top:40px}
  .sec-head{margin-bottom:32px}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .site-head{padding:0 14px;top:12px}
  .dock{padding:8px 10px 8px 12px;gap:8px}
  .dock-brand{font-size:13px}
  .brand-mark{width:24px;height:24px;border-radius:8px}
  .dock-cta{display:none}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .step{grid-template-columns:48px minmax(0,1fr);gap:14px;padding-bottom:36px}
  .step::before{left:19.5px;top:48px}
  .step-num{width:40px;height:40px;font-size:13px}
  .step-body h3{font-size:18px}
  .page-hero h1{max-width:none}
  .hero-meta{gap:10px 22px;font-size:12px;margin-top:28px}
  .faq-q{font-size:16px}
  .issue{grid-template-columns:44px minmax(0,1fr);gap:14px;padding:22px 0}
  .issue-num{font-size:18px}
  .btn{height:44px;padding:0 18px;font-size:14px}
  .back-row{margin-top:40px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important}
  .scene-card:hover{transform:none}
  .scene-card:hover .scene-media img{transform:none}
}

/* roulang page: category2 */
:root{
    --ink-900:#0C0E11;
    --ink-500:#5A616B;
    --deep:#14152B;
    --paper:#F7F6F2;
    --paper-2:#EFEEE8;
    --accent:#12BFA2;
    --accent-hover:#0AA48B;
    --accent-soft:rgba(18,191,162,.12);
    --line:#E3E1DA;
    --danger:#B4432F;
    --r-sm:8px;
    --r-md:14px;
    --r-lg:22px;
    --r-cover:28px;
    --sh-1:0 1px 2px rgba(12,14,17,.06);
    --sh-2:0 14px 34px -14px rgba(12,14,17,.22);
    --ease:cubic-bezier(.2,.7,.3,1);
    --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.85;
    color:var(--ink-900);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;height:auto}
  a{color:inherit;text-decoration:none}
  button,input{font:inherit;color:inherit}
  h1,h2,h3,h4,h5,p,ul,ol{margin:0}
  ul,ol{padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
  @media (min-width:1440px){.container{max-width:1320px}}
  @media (max-width:640px){.container{padding:0 20px}}

  /* ============ 浮动 Dock 导航 ============ */
  .dock-shell{
    position:fixed;top:18px;left:0;right:0;z-index:80;
    display:flex;flex-direction:column;align-items:center;gap:10px;
    padding:0 24px;pointer-events:none;
  }
  .dock-shell > *{pointer-events:auto}
  .dock{
    width:100%;max-width:1080px;
    display:flex;align-items:center;gap:16px;
    background:rgba(247,246,242,.97);
    border:1px solid var(--line);
    border-radius:999px;
    padding:10px 12px 10px 18px;
    box-shadow:var(--sh-1);
    transition:padding .24s var(--ease),box-shadow .24s var(--ease);
  }
  .dock.is-scrolled{padding-top:7px;padding-bottom:7px;box-shadow:var(--sh-2)}
  .dock-brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .brand-mark{
    width:28px;height:28px;flex:0 0 auto;display:grid;place-items:center;
    background:var(--ink-900);border-radius:9px;
  }
  .brand-mark svg{width:15px;height:15px}
  .brand-text{display:flex;flex-direction:column;line-height:1.1}
  .brand-text b{font-size:15px;font-weight:800;letter-spacing:-.01em}
  .brand-text em{font-style:normal;font-size:10px;letter-spacing:.2em;color:var(--ink-500);margin-top:3px}

  .dock-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
  .dock-nav a{
    position:relative;font-size:14px;padding:8px 11px;border-radius:999px;
    white-space:nowrap;color:#2f343a;
    transition:background .2s var(--ease),color .2s var(--ease);
  }
  .dock-nav a::after{
    content:"";position:absolute;left:11px;right:11px;bottom:4px;height:3px;border-radius:3px;
    background:var(--accent);opacity:0;transform:scaleX(.4);transition:.2s var(--ease);
  }
  .dock-nav a:hover{background:var(--paper-2)}
  .dock-nav a:hover::after{opacity:1;transform:scaleX(1)}
  .dock-nav a.is-active{background:var(--paper-2);color:var(--ink-900);font-weight:700}
  .dock-nav a.is-active::after{opacity:0}

  .dock-tools{display:flex;align-items:center;gap:8px;flex:0 0 auto}
  .icon-btn,.menu-btn{
    width:38px;height:38px;border-radius:999px;border:1px solid var(--line);
    background:transparent;display:grid;place-items:center;cursor:pointer;
    transition:background .2s var(--ease),border-color .2s var(--ease);
  }
  .icon-btn:hover,.menu-btn:hover{background:var(--paper-2);border-color:#cfccc2}
  .menu-btn{display:none}

  /* 搜索条 */
  .dock-search{
    display:none;width:100%;max-width:1080px;
    background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
    padding:14px 16px;box-shadow:var(--sh-1);pointer-events:auto;
  }
  .dock-search.is-open{display:block}
  .dock-search label{display:block;font-size:13px;color:var(--ink-500);margin-bottom:8px}
  .field{
    width:100%;border:1px solid var(--line);border-radius:var(--r-sm);
    padding:11px 14px;font-size:15px;background:#fff;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .field:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}

  /* 移动抽屉 */
  .drawer{
    display:none;width:100%;max-width:1080px;
    background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);
    box-shadow:var(--sh-2);padding:8px 20px 20px;max-height:72vh;overflow:auto;
    pointer-events:auto;
  }
  .drawer.is-open{display:block}
  .drawer a{
    display:flex;align-items:center;justify-content:space-between;
    padding:15px 2px;font-size:18px;font-weight:600;
    border-bottom:1px solid var(--line);
    transition:color .2s var(--ease);
  }
  .drawer a:hover{color:var(--accent-hover)}
  .drawer a:last-of-type{border-bottom:0}
  .drawer .dr-cta{margin-top:14px;border-bottom:0}

  /* ============ 按钮 & 链接 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 24px;border-radius:999px;
    font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
    transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
  }
  .btn svg{transition:transform .22s var(--ease)}
  .btn:hover svg{transform:translateX(3px)}
  .btn-primary{background:var(--ink-900);color:var(--paper)}
  .btn-primary:hover{background:var(--accent);color:var(--ink-900)}
  .btn-ghost{background:transparent;border-color:var(--ink-900);color:var(--ink-900)}
  .btn-ghost:hover{background:var(--ink-900);color:var(--paper)}
  .btn-sm{height:38px;padding:0 16px;font-size:13.5px}
  .btn-light{background:var(--paper);color:var(--ink-900)}
  .btn-light:hover{background:var(--accent);color:var(--ink-900)}
  .btn-outline-light{border-color:rgba(247,246,242,.45);color:var(--paper);background:transparent}
  .btn-outline-light:hover{background:var(--paper);color:var(--ink-900);border-color:var(--paper)}

  .link-arrow{
    display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
    border-bottom:1px solid var(--line);padding-bottom:3px;
    transition:color .2s var(--ease),border-color .2s var(--ease);
  }
  .link-arrow:hover{color:var(--accent-hover);border-color:var(--accent)}
  .link-arrow:hover svg{transform:translateX(4px)}
  .link-arrow svg{transition:transform .2s var(--ease)}

  /* ============ Hero ============ */
  .page-hero{
    position:relative;overflow:hidden;color:var(--paper);
    background-color:var(--deep);
    background-image:
      linear-gradient(rgba(20,21,43,.88),rgba(12,14,17,.95)),
      url(/assets/images/backpic/back-2.png);
    background-size:cover;background-position:center;
    padding-top:calc(18px + 92px);
  }
  .page-hero::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:
      radial-gradient(1.6px 1.6px at 18% 22%,rgba(247,246,242,.28) 50%,transparent 51%),
      radial-gradient(1.4px 1.4px at 62% 12%,rgba(18,191,162,.45) 50%,transparent 51%),
      radial-gradient(1.4px 1.4px at 82% 46%,rgba(247,246,242,.22) 50%,transparent 51%),
      radial-gradient(1.2px 1.2px at 34% 68%,rgba(247,246,242,.18) 50%,transparent 51%),
      radial-gradient(1.2px 1.2px at 74% 82%,rgba(18,191,162,.32) 50%,transparent 51%);
    background-size:240px 240px,300px 300px,260px 260px,340px 340px,280px 280px;
    opacity:.9;
  }
  .hero-inner{position:relative;z-index:2;padding:40px 0 0;max-width:880px}
  .hero-eyebrow{
    display:inline-flex;align-items:center;gap:10px;
    font-family:var(--mono);font-size:12px;letter-spacing:.28em;
    color:rgba(247,246,242,.7);text-transform:uppercase;
  }
  .hero-eyebrow .bar{width:26px;height:1px;background:var(--accent);display:inline-block}
  .page-hero h1{
    font-size:clamp(32px,5vw,56px);font-weight:800;line-height:1.12;
    letter-spacing:-.02em;margin-top:20px;max-width:16em;
  }
  .hero-sub{
    margin-top:20px;font-size:16.5px;line-height:1.85;
    color:rgba(247,246,242,.78);max-width:620px;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
  .hero-meta{
    position:relative;z-index:2;
    margin-top:48px;padding:22px 0 30px;
    border-top:1px solid rgba(247,246,242,.16);
    display:flex;flex-wrap:wrap;gap:16px 48px;
  }
  .hero-meta div{display:flex;flex-direction:column;gap:4px}
  .hero-meta strong{font-family:var(--mono);font-size:19px;font-weight:600;letter-spacing:-.01em}
  .hero-meta span{font-size:12.5px;color:rgba(247,246,242,.6);letter-spacing:.06em}

  /* ============ 状态条 ============ */
  .strip-band{background:var(--paper);border-bottom:1px solid var(--line)}
  .strip-wrap{padding:26px 0 20px}
  .strip-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:14px;flex-wrap:wrap}
  .strip-head p{font-size:13.5px;color:var(--ink-500)}
  .strip{
    display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x mandatory;
    padding-bottom:8px;scrollbar-width:thin;
  }
  .strip::-webkit-scrollbar{height:6px}
  .strip::-webkit-scrollbar-thumb{background:#d8d5cc;border-radius:99px}
  .chip{
    flex:0 0 auto;scroll-snap-align:start;cursor:pointer;
    display:inline-flex;flex-direction:column;gap:2px;
    padding:10px 18px;border-radius:999px;border:1px solid var(--line);
    background:var(--paper);text-align:left;
    transition:border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
  }
  .chip b{font-size:14px;font-weight:600;color:var(--ink-900);line-height:1.4;white-space:nowrap}
  .chip span{font-family:var(--mono);font-size:11.5px;color:var(--ink-500);white-space:nowrap}
  .chip:hover{border-color:var(--ink-900);transform:translateY(-1px)}
  .chip.is-current{background:var(--accent);border-color:var(--accent);box-shadow:0 10px 26px -16px rgba(18,191,162,.9)}
  .chip.is-current b,.chip.is-current span{color:#08211C}

  /* ============ 通用板块 ============ */
  .section{padding:88px 0}
  .section--tight{padding:64px 0}
  .section--alt{background:var(--paper-2)}
  @media (max-width:768px){
    .section{padding:60px 0}
    .section--tight{padding:48px 0}
  }
  .eyebrow{
    font-family:var(--mono);font-size:12px;letter-spacing:.28em;
    color:var(--ink-500);margin-bottom:12px;
  }
  .sec-head{
    display:flex;align-items:flex-end;justify-content:space-between;
    gap:24px;margin-bottom:36px;flex-wrap:wrap;
  }
  .sec-head h2{
    font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.25;letter-spacing:-.01em;
  }
  .sec-lead{margin-top:10px;font-size:15px;color:var(--ink-500);max-width:640px}

  /* 条目卡 */
  .match-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
  @media (max-width:768px){.match-grid{grid-template-columns:1fr}}
  .match-card{
    display:flex;flex-direction:column;overflow:hidden;
    border:1px solid var(--line);border-radius:var(--r-md);
    background:var(--paper);box-shadow:var(--sh-1);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease);
  }
  .match-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
  .mc-cover{aspect-ratio:16/9;overflow:hidden;background:var(--paper-2)}
  .mc-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
  .match-card:hover .mc-cover img{transform:scale(1.03)}
  .mc-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
  .mc-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
  .badge{
    display:inline-flex;align-items:center;font-size:12px;font-weight:600;
    padding:4px 12px;border-radius:999px;
    background:var(--accent-soft);color:#0A7C6A;letter-spacing:.02em;white-space:nowrap;
  }
  .badge-live{background:var(--accent);color:#08211C}
  .badge-soon{background:var(--paper-2);color:var(--ink-500);border:1px solid var(--line)}
  .badge-done{background:transparent;border:1px solid var(--line);color:var(--ink-500)}
  .mc-no{font-family:var(--mono);font-size:12px;color:var(--ink-500)}
  .match-card h3{font-size:19px;font-weight:650;line-height:1.45;letter-spacing:-.005em}
  .mc-desc{font-size:14.5px;color:var(--ink-500);line-height:1.8}
  .mc-meta{
    margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    font-family:var(--mono);font-size:12.5px;color:var(--ink-500);
  }
  .mc-meta em{font-style:normal}
  .mc-arrow{
    width:32px;height:32px;flex:0 0 auto;border-radius:999px;
    border:1px solid var(--line);display:grid;place-items:center;
    transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  }
  .match-card:hover .mc-arrow{background:var(--ink-900);color:var(--paper);border-color:var(--ink-900)}

  /* 说明三条 */
  .notes-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
  @media (max-width:900px){.notes-grid{grid-template-columns:1fr;gap:26px}}
  .note-item{border-top:2px solid var(--ink-900);padding-top:18px}
  .note-item h3{font-size:17.5px;font-weight:650}
  .note-item p{margin-top:8px;font-size:14.5px;color:var(--ink-500)}
  .note-item .num{
    font-family:var(--mono);font-size:12px;color:var(--accent-hover);
    letter-spacing:.18em;display:block;margin-bottom:10px;
  }

  /* 目录行 */
  .dir-list{border-top:1px solid var(--line)}
  .dir-row{
    display:flex;align-items:center;gap:24px;
    padding:24px 8px;border-bottom:1px solid var(--line);
    transition:background .2s var(--ease);
  }
  .dir-row:hover{background:var(--paper-2)}
  .dir-row .no{
    font-family:var(--mono);font-size:26px;font-weight:600;line-height:1;
    color:#cfccc2;min-width:52px;transition:color .2s var(--ease);
  }
  .dir-row:hover .no{color:var(--accent)}
  .dir-main{flex:1;min-width:0}
  .dir-main h3{font-size:19px;font-weight:650;line-height:1.4}
  .dir-main p{margin-top:4px;font-size:14px;color:var(--ink-500)}
  .dir-side{
    display:flex;align-items:center;gap:16px;
    font-family:var(--mono);font-size:13px;color:var(--ink-500);white-space:nowrap;
  }
  .dir-side svg{transition:transform .2s var(--ease)}
  .dir-row:hover .dir-side svg{transform:translateX(4px)}
  @media (max-width:640px){
    .dir-row{gap:14px;padding:20px 4px;align-items:flex-start}
    .dir-row .no{font-size:20px;min-width:36px}
    .dir-side{display:none}
  }

  /* FAQ */
  .faq{border-top:1px solid var(--line);margin-top:8px}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:22px 4px;background:none;border:0;text-align:left;cursor:pointer;
    font-size:17px;font-weight:600;line-height:1.6;
    transition:color .2s var(--ease);
  }
  .faq-q:hover{color:var(--accent-hover)}
  .faq-icon{position:relative;width:22px;height:22px;flex:0 0 auto}
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;left:50%;top:50%;background:var(--ink-900);
    border-radius:2px;transition:transform .22s var(--ease),background .22s var(--ease);
  }
  .faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%)}
  .faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%)}
  .faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
  .faq-item.is-open .faq-q{color:var(--accent-hover)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease)}
  .faq-a-inner{
    padding:0 4px 26px;font-size:15px;line-height:1.85;
    color:var(--ink-500);max-width:720px;
  }

  /* CTA 深空块 */
  .cta-band{
    position:relative;overflow:hidden;color:var(--paper);
    background:var(--deep);border-radius:var(--r-cover);
    padding:60px 56px;
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:
      radial-gradient(1.5px 1.5px at 12% 30%,rgba(247,246,242,.22) 50%,transparent 51%),
      radial-gradient(1.5px 1.5px at 46% 74%,rgba(18,191,162,.4) 50%,transparent 51%),
      radial-gradient(1.3px 1.3px at 78% 24%,rgba(247,246,242,.2) 50%,transparent 51%);
    background-size:260px 260px,300px 300px,240px 240px;
  }
  .cta-flex{
    position:relative;z-index:2;
    display:flex;align-items:center;justify-content:space-between;
    gap:36px;flex-wrap:wrap;
  }
  .cta-band h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.25;max-width:16em}
  .cta-band p{margin-top:12px;font-size:15px;color:rgba(247,246,242,.72);max-width:520px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px}
  @media (max-width:768px){.cta-band{padding:40px 26px;border-radius:var(--r-lg)}}

  /* Toast */
  .toast{
    position:fixed;left:50%;bottom:34px;z-index:120;
    transform:translate(-50%,12px);opacity:0;pointer-events:none;
    background:var(--paper);border:1px solid var(--line);border-radius:999px;
    padding:11px 22px;font-size:14px;box-shadow:var(--sh-2);
    transition:opacity .24s var(--ease),transform .24s var(--ease);
  }
  .toast.is-show{opacity:1;transform:translate(-50%,0)}

  /* 页脚 */
  .site-foot{background:var(--ink-900);color:var(--paper);padding:72px 0 28px;margin-top:96px}
  @media (max-width:768px){.site-foot{margin-top:64px;padding:56px 0 24px}}
  .foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
  @media (max-width:900px){.foot-grid{grid-template-columns:1fr 1fr;gap:32px}}
  @media (max-width:560px){.foot-grid{grid-template-columns:1fr;gap:28px}}
  .foot-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;margin-bottom:16px}
  .foot-brand .brand-mark{background:rgba(247,246,242,.08)}
  .site-foot p{color:rgba(247,246,242,.66);font-size:14px;line-height:1.85;max-width:360px}
  .site-foot h5{
    font-size:13px;letter-spacing:.2em;font-weight:600;
    color:rgba(247,246,242,.56);margin-bottom:16px;
  }
  .foot-links{display:flex;flex-direction:column;gap:10px;font-size:14px}
  .foot-links a{color:rgba(247,246,242,.82);transition:color .2s var(--ease)}
  .foot-links a:hover{color:var(--accent)}
  .foot-bottom{
    margin-top:56px;padding-top:22px;
    border-top:1px solid rgba(247,246,242,.14);
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    font-size:13px;color:rgba(247,246,242,.6);flex-wrap:wrap;
  }
  .to-top{display:inline-flex;align-items:center;gap:6px;color:var(--paper);transition:color .2s var(--ease)}
  .to-top:hover{color:var(--accent)}

  /* 断点：Dock 收起 */
  @media (max-width:1023px){
    .dock-nav{display:none}
    .menu-btn{display:grid}
    .dock{gap:12px;padding:9px 10px 9px 14px}
    .brand-text b{font-size:14px}
    .dock-search{max-width:none}
    .drawer{max-width:none}
  }
  @media (max-width:520px){
    .dock-shell{top:12px;padding:0 12px}
    .dock{border-radius:18px}
    .brand-text em{display:none}
    .dock-tools .btn-sm{display:none}
    .page-hero{padding-top:calc(12px + 84px)}
    .hero-meta{gap:14px 28px;margin-top:36px}
    .cta-actions .btn{width:100%}
  }

  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{
      animation-duration:.001ms !important;
      transition-duration:.001ms !important;
      scroll-behavior:auto !important;
    }
    .match-card:hover{transform:none}
    .match-card:hover .mc-cover img{transform:none}
    .dir-row:hover .dir-side svg{transform:none}
    .btn:hover svg{transform:none}
  }

/* roulang page: category4 */
:root{
  --ink-900:#0C0E11;
  --ink-700:#23262C;
  --ink-500:#5A616B;
  --deep:#14152B;
  --paper:#F7F6F2;
  --paper-2:#EFEEE8;
  --accent:#12BFA2;
  --accent-dark:#0AA48B;
  --accent-soft:rgba(18,191,162,.12);
  --line:#E3E1DA;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --shadow-1:0 1px 2px rgba(12,14,17,.06);
  --shadow-2:0 14px 34px -14px rgba(12,14,17,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-900);
  font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
.mono{font-family:'IBM Plex Mono','Space Grotesk',ui-monospace,monospace;font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
@media(min-width:1440px){.container{max-width:1320px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.28em;color:var(--accent-dark);
  text-transform:uppercase;font-weight:600;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--accent)}

/* ---------- Dock nav ---------- */
.dock-wrap{position:fixed;top:16px;left:0;right:0;z-index:60;padding:0 20px;display:flex;justify-content:center;pointer-events:none}
.dock{
  pointer-events:auto;
  width:100%;max-width:1080px;
  display:flex;align-items:center;gap:18px;
  background:rgba(247,246,242,.96);
  border:1px solid var(--line);
  border-radius:999px;
  padding:10px 12px 10px 18px;
  box-shadow:var(--shadow-1);
  transition:height .2s var(--ease),padding .2s var(--ease),box-shadow .2s var(--ease);
}
.dock.is-scrolled{box-shadow:var(--shadow-2);padding-top:6px;padding-bottom:6px}
.dock-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:26px;height:26px;display:inline-flex;flex-shrink:0}
.brand-mark svg{width:100%;height:100%}
.dock-logo-text{display:flex;flex-direction:column;line-height:1.1}
.dock-logo-text b{font-size:15px;font-weight:800;letter-spacing:-.2px;white-space:nowrap}
.dock-logo-text span{font-size:9px;letter-spacing:.2em;color:var(--ink-500);font-weight:600}
.dock-nav{display:flex;align-items:center;gap:2px;margin-left:auto;flex-wrap:nowrap}
.dock-nav a{
  position:relative;font-size:14px;color:var(--ink-700);
  padding:8px 12px;border-radius:999px;white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.dock-nav a:hover{background:var(--paper-2);color:var(--ink-900)}
.dock-nav a.is-active{background:var(--paper-2);color:var(--ink-900);font-weight:700}
.dock-cta{
  flex-shrink:0;display:inline-flex;align-items:center;gap:6px;
  height:40px;padding:0 18px;border-radius:999px;
  background:var(--ink-900);color:var(--paper);
  font-size:13px;font-weight:700;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.dock-cta:hover{background:var(--accent);color:var(--ink-900)}
.dock-menu-btn{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:999px;
  border:1px solid var(--line);background:var(--paper);color:var(--ink-900);
}
.dock-drawer{
  position:fixed;inset:0;z-index:70;background:var(--paper);
  display:none;flex-direction:column;padding:24px;
}
.dock-drawer.open{display:flex}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.drawer-links{display:flex;flex-direction:column}
.drawer-links a{
  font-size:18px;padding:16px 4px;border-bottom:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;
}
.drawer-links a.is-active{color:var(--accent-dark);font-weight:700}
@media(max-width:900px){
  .dock-nav{display:none}
  .dock-cta{display:none}
  .dock-menu-btn{display:inline-flex;margin-left:auto}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:999px;
  font-size:14px;font-weight:700;border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn-primary{background:var(--ink-900);color:var(--paper)}
.btn-primary:hover{background:var(--accent);color:var(--ink-900)}
.btn-ghost{background:transparent;color:var(--ink-900);border-color:var(--ink-900)}
.btn-ghost:hover{background:var(--ink-900);color:var(--paper)}
.btn-ghost-light{background:transparent;color:var(--paper);border-color:rgba(247,246,242,.4)}
.btn-ghost-light:hover{background:var(--paper);color:var(--ink-900)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;
  color:var(--ink-900);border-bottom:1px solid transparent;transition:color .18s var(--ease);
}
.link-arrow svg{transition:transform .2s var(--ease)}
.link-arrow:hover{color:var(--accent-dark)}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- Page hero (category small) ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background-color:var(--deep);
  padding:140px 0 64px;
  color:var(--paper);
}
.page-hero .bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.30;
}
.page-hero .grid-lines{
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(247,246,242,.10) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.7;
}
.page-hero .veil{
  position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(20,21,43,.92),rgba(12,14,17,.72));
}
.page-hero .inner{position:relative;z-index:2;max-width:820px}
.page-hero h1{
  font-size:clamp(32px,4.6vw,52px);font-weight:800;line-height:1.1;letter-spacing:-.02em;
  margin:16px 0 18px;
}
.page-hero p{color:rgba(247,246,242,.78);font-size:16px;max-width:720px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;padding:5px 12px;border-radius:999px;
  background:var(--accent-soft);color:var(--accent-dark);font-weight:700;
}
.tag-outline{
  display:inline-flex;align-items:center;
  font-size:12px;padding:5px 12px;border-radius:999px;
  border:1px solid rgba(247,246,242,.28);color:rgba(247,246,242,.8);
}

/* ---------- Section base ---------- */
.section{padding:96px 0}
.section-tight{padding:64px 0}
@media(max-width:768px){.section{padding:60px 0}.section-tight{padding:44px 0}}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(24px,3vw,36px);font-weight:800;letter-spacing:-.02em;line-height:1.2}
.sec-head p{color:var(--ink-500);font-size:15px;max-width:560px;margin-top:10px}
.rule{height:1px;background:var(--line);width:100%}

/* ---------- Safety layout ---------- */
.safety-wrap{display:grid;grid-template-columns:250px minmax(0,1fr);gap:56px;align-items:start}
@media(max-width:1024px){.safety-wrap{grid-template-columns:1fr;gap:32px}}
.safety-toc{
  position:sticky;top:104px;
  border-left:1px solid var(--line);
  padding-left:20px;
}
.safety-toc h3{font-size:12px;letter-spacing:.24em;color:var(--ink-500);font-weight:700;margin-bottom:16px}
.safety-toc a{
  display:block;font-size:14px;color:var(--ink-500);padding:8px 0;
  border-left:2px solid transparent;margin-left:-22px;padding-left:20px;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.safety-toc a:hover{color:var(--ink-900)}
.safety-toc a.active{color:var(--accent-dark);border-left-color:var(--accent);font-weight:700}
@media(max-width:1024px){
  .safety-toc{position:static;border-left:0;padding-left:0;border:1px solid var(--line);border-radius:var(--r-md);padding:20px;background:#fff}
  .safety-toc a{margin-left:0;padding-left:0;border-left:0}
}
.safety-body{max-width:760px}
.safety-block{margin-bottom:48px}
.safety-block h2{
  font-size:clamp(21px,2.4vw,27px);font-weight:800;letter-spacing:-.01em;
  padding-left:14px;border-left:3px solid var(--accent);line-height:1.35;margin-bottom:16px;
}
.safety-block h3{font-size:18px;font-weight:700;margin:26px 0 8px}
.safety-block p{color:var(--ink-700);margin-bottom:14px}
.safety-block p:last-child{margin-bottom:0}
.checklist{display:grid;gap:10px;margin:18px 0 4px}
.checklist li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--ink-700);
  background:var(--paper-2);border-radius:var(--r-sm);padding:12px 14px;
}
.checklist li svg{flex-shrink:0;margin-top:4px;color:var(--accent-dark)}
.alert-strip{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--accent-soft);
  border-left:4px solid var(--accent);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  padding:18px 20px;margin:32px 0;
}
.alert-strip strong{display:block;font-size:15px;margin-bottom:4px}
.alert-strip p{font-size:14px;color:var(--ink-700);margin:0}

/* ---------- Numbered steps ---------- */
.steps{display:grid;gap:0;margin-top:8px}
.step{display:grid;grid-template-columns:64px minmax(0,1fr);gap:20px;padding:24px 0;border-bottom:1px solid var(--line)}
.step:first-child{border-top:1px solid var(--line)}
.step-num{
  font-family:'IBM Plex Mono',monospace;font-size:26px;font-weight:600;
  color:var(--line);line-height:1.2;transition:color .18s var(--ease);
}
.step:hover .step-num{color:var(--accent)}
.step h3{font-size:19px;font-weight:700;margin-bottom:6px}
.step p{font-size:14.5px;color:var(--ink-500);margin:0}

/* ---------- Related links ---------- */
.related-links{display:grid;gap:0;border-top:1px solid var(--line);margin-top:8px}
.related-links a{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px;border-bottom:1px solid var(--line);
  font-size:16px;font-weight:600;
  transition:background .18s var(--ease),padding .18s var(--ease);
}
.related-links a:hover{background:var(--paper-2);padding-left:14px;padding-right:14px}
.related-links a span:last-child{color:var(--ink-500);font-size:13px;display:inline-flex;align-items:center;gap:6px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:none;border:0;text-align:left;padding:20px 0;
  font-size:17px;font-weight:600;color:var(--ink-900);
}
.faq-q .ic{flex-shrink:0;width:22px;height:22px;position:relative;transition:transform .22s var(--ease)}
.faq-q .ic::before,.faq-q .ic::after{
  content:"";position:absolute;background:var(--ink-900);border-radius:2px;
  transition:background .2s var(--ease);
}
.faq-q .ic::before{left:0;top:10px;width:22px;height:2px}
.faq-q .ic::after{top:0;left:10px;width:2px;height:22px}
.faq-q[aria-expanded="true"] .ic{transform:rotate(45deg)}
.faq-q[aria-expanded="true"] .ic::before,.faq-q[aria-expanded="true"] .ic::after{background:var(--accent-dark)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease)}
.faq-a-inner{padding:0 0 22px;max-width:720px;font-size:15px;color:var(--ink-500);line-height:1.85}

/* ---------- CTA block ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--deep);color:var(--paper);
  border-radius:28px;padding:64px;
}
@media(max-width:768px){.cta-band{padding:36px 24px}}
.cta-band .dots{
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(247,246,242,.10) 1px,transparent 1px);
  background-size:24px 24px;opacity:.7;
}
.cta-band .inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(24px,3vw,34px);font-weight:800;letter-spacing:-.02em;line-height:1.25}
.cta-band p{color:rgba(247,246,242,.72);margin-top:10px;font-size:15px;max-width:460px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.toast{
  position:fixed;left:50%;bottom:32px;transform:translate(-50%,20px);
  background:var(--paper);color:var(--ink-900);border:1px solid var(--line);
  border-radius:999px;padding:12px 22px;font-size:14px;font-weight:600;
  box-shadow:var(--shadow-2);opacity:0;pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease);z-index:90;
}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- Footer ---------- */
.site-foot{background:var(--ink-900);color:var(--paper);padding:72px 0 0;margin-top:96px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
@media(max-width:900px){.foot-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:560px){.foot-grid{grid-template-columns:1fr}}
.foot-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;margin-bottom:14px}
.site-foot p{font-size:13.5px;color:rgba(247,246,242,.62);line-height:1.8;max-width:340px}
.site-foot h5{font-size:12px;letter-spacing:.2em;color:rgba(247,246,242,.5);font-weight:700;margin-bottom:16px;text-transform:uppercase}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links a{font-size:14px;color:rgba(247,246,242,.78);transition:color .18s var(--ease)}
.foot-links a:hover{color:var(--accent)}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(247,246,242,.14);padding:22px 0 28px;
  font-size:12.5px;color:rgba(247,246,242,.5);
}
.to-top{display:inline-flex;align-items:center;gap:6px;color:rgba(247,246,242,.7);font-size:12.5px;transition:color .18s var(--ease)}
.to-top:hover{color:var(--accent)}

:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}
@media(max-width:768px){
  .container{padding:0 20px}
  .page-hero{padding:120px 0 48px}
}

/* roulang page: category3 */
:root{
    --ink-900:#0C0E11;
    --ink-700:#2A2F38;
    --ink-500:#5A616B;
    --deep:#14152B;
    --paper:#F7F6F2;
    --paper-2:#EFEEE8;
    --accent:#12BFA2;
    --accent-hover:#0AA48B;
    --accent-soft:rgba(18,191,162,.12);
    --line:#E3E1DA;
    --line-strong:#D6D3CA;
    --danger:#B4432F;
    --r-sm:8px;
    --r-md:14px;
    --r-lg:22px;
    --r-xl:28px;
    --r-pill:999px;
    --sh-1:0 1px 2px rgba(12,14,17,.06);
    --sh-2:0 14px 34px -14px rgba(12,14,17,.22);
    --ease:cubic-bezier(.2,.7,.3,1);
    --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    --font-mono:"IBM Plex Mono","Space Grotesk",ui-monospace,SFMono-Regular,Menlo,monospace;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink-900);
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
    overflow-x:hidden;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
  input{font:inherit}
  h1,h2,h3,h4,h5,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:4px}

  .container{
    width:100%;
    max-width:1240px !important;
    margin-left:auto;
    margin-right:auto;
    padding-left:24px;
    padding-right:24px;
  }

  /* ============ 浮动 Dock 导航 ============ */
  .header-dock{
    position:fixed;
    top:0;left:0;right:0;
    z-index:80;
    padding:16px 24px 0;
    pointer-events:none;
    transition:padding .24s var(--ease);
  }
  .header-dock.is-scrolled{padding-top:8px}
  .dock{
    pointer-events:auto;
    display:flex;
    align-items:center;
    gap:14px;
    max-width:1080px;
    margin:0 auto;
    padding:9px 12px 9px 16px;
    background:rgba(247,246,242,.96);
    border:1px solid var(--line);
    border-radius:var(--r-pill);
    box-shadow:var(--sh-1);
    transition:box-shadow .24s var(--ease),padding .24s var(--ease);
    position:relative;
  }
  .header-dock.is-scrolled .dock{box-shadow:0 10px 26px -16px rgba(12,14,17,.34);padding:6px 10px 6px 14px}
  .dock-brand{display:flex;align-items:center;gap:9px;flex:none;padding-right:6px}
  .brand-mark{display:inline-flex;width:22px;height:22px;flex:none}
  .brand-mark svg{width:100%;height:100%;display:block}
  .brand-text{display:flex;flex-direction:column;line-height:1.1}
  .brand-name{font-size:15px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
  .brand-sub{font-family:var(--font-mono);font-size:9px;letter-spacing:.24em;color:var(--ink-500);margin-top:3px}
  .dock-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
  .dock-nav a{
    position:relative;
    padding:7px 10px;
    font-size:13.5px;
    border-radius:var(--r-pill);
    color:var(--ink-700);
    white-space:nowrap;
    transition:background .2s var(--ease),color .2s var(--ease);
  }
  .dock-nav a::after{
    content:"";
    position:absolute;
    left:50%;bottom:2px;
    width:4px;height:4px;border-radius:50%;
    background:var(--accent);
    opacity:0;
    transform:translate(-50%,4px);
    transition:opacity .2s var(--ease),transform .2s var(--ease);
  }
  .dock-nav a:hover{background:var(--paper-2);color:var(--ink-900)}
  .dock-nav a:hover::after{opacity:1;transform:translate(-50%,0)}
  .dock-nav a.is-active{background:var(--paper-2);color:var(--ink-900);font-weight:700}
  .dock-nav a.is-active::after{opacity:1;transform:translate(-50%,0)}
  .dock-tools{display:flex;align-items:center;gap:8px;flex:none;margin-left:6px}
  .icon-btn{
    width:36px;height:36px;
    display:inline-flex;align-items:center;justify-content:center;
    border-radius:var(--r-pill);
    border:1px solid transparent;
    color:var(--ink-700);
    transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  }
  .icon-btn:hover{background:var(--paper-2);border-color:var(--line);color:var(--ink-900)}
  .dock-search{
    position:absolute;
    right:64px;top:50%;
    transform:translateY(-50%) scale(.96);
    width:0;
    opacity:0;
    overflow:hidden;
    pointer-events:none;
    transition:width .24s var(--ease),opacity .2s var(--ease),transform .24s var(--ease);
  }
  .dock-search.is-open{width:200px;opacity:1;pointer-events:auto;transform:translateY(-50%) scale(1)}
  .dock-search input{
    width:100%;
    height:34px;
    padding:0 14px;
    border-radius:var(--r-pill);
    border:1px solid var(--line);
    background:var(--paper-2);
    font-size:13px;
    color:var(--ink-900);
  }
  .dock-search input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft)}
  .menu-btn{
    display:none;
    width:38px;height:38px;
    align-items:center;justify-content:center;
    border-radius:var(--r-pill);
    border:1px solid var(--line);
    color:var(--ink-900);
  }

  /* 按钮 */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:46px;
    padding:0 24px;
    border-radius:var(--r-pill);
    font-size:15px;
    font-weight:600;
    letter-spacing:.01em;
    transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
    white-space:nowrap;
  }
  .btn-sm{height:38px;padding:0 18px;font-size:13.5px}
  .btn-primary{background:var(--ink-900);color:var(--paper)}
  .btn-primary:hover{background:var(--accent);color:var(--ink-900)}
  .btn-secondary{background:transparent;color:var(--ink-900);border:1px solid var(--ink-900)}
  .btn-secondary:hover{background:var(--ink-900);color:var(--paper)}
  .btn-paper{background:var(--paper);color:var(--ink-900)}
  .btn-paper:hover{background:var(--accent);color:var(--ink-900)}
  .btn-ghost-light{background:transparent;color:var(--paper);border:1px solid rgba(247,246,242,.34)}
  .btn-ghost-light:hover{background:rgba(247,246,242,.12);border-color:rgba(247,246,242,.62)}
  .btn svg{transition:transform .2s var(--ease)}
  .btn:hover svg{transform:translateX(3px)}
  .link-arrow{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:14px;
    font-weight:600;
    color:var(--ink-700);
    padding-bottom:4px;
    border-bottom:1px solid transparent;
    transition:color .2s var(--ease),border-color .2s var(--ease);
  }
  .link-arrow span{transition:transform .2s var(--ease)}
  .link-arrow:hover{color:var(--accent-hover);border-bottom-color:var(--accent)}
  .link-arrow:hover span{transform:translateX(4px)}

  /* 移动端抽屉 */
  .mobile-drawer{
    position:fixed;
    inset:0;
    z-index:75;
    background:var(--paper);
    padding:96px 24px 40px;
    display:flex;
    flex-direction:column;
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
    overflow-y:auto;
  }
  .mobile-drawer.is-open{opacity:1;visibility:visible;transform:none}
  .mobile-drawer nav{display:flex;flex-direction:column;border-top:1px solid var(--line)}
  .mobile-drawer nav a{
    padding:16px 2px;
    font-size:18px;
    font-weight:600;
    border-bottom:1px solid var(--line);
    display:flex;
    align-items:center;
    justify-content:space-between;
    color:var(--ink-900);
  }
  .mobile-drawer nav a.is-active{color:var(--accent-hover)}
  .mobile-drawer nav a::after{content:"→";font-size:16px;color:var(--ink-500)}
  .drawer-foot{margin-top:28px;display:flex;flex-direction:column;gap:12px}

  /* ============ 主体 ============ */
  .page-main{padding-top:104px}

  .eyebrow{
    font-family:var(--font-mono);
    font-size:12px;
    font-weight:600;
    letter-spacing:.28em;
    text-transform:uppercase;
    color:var(--accent-hover);
    margin-bottom:12px;
  }
  .eyebrow-light{color:var(--accent)}
  .section-title{
    font-size:clamp(24px,3vw,36px);
    font-weight:700;
    line-height:1.25;
    letter-spacing:-.01em;
    max-width:760px;
  }
  .section-lead{
    font-size:16px;
    color:var(--ink-500);
    max-width:720px;
    margin-top:14px;
    line-height:1.85;
  }
  .section{padding:88px 0}
  .section-tight{padding:64px 0}
  .section-alt{background:var(--paper-2)}
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:32px;
    margin-bottom:44px;
    flex-wrap:wrap;
  }

  /* Hero */
  .hero-panel{
    position:relative;
    overflow:hidden;
    border-radius:var(--r-xl);
    padding:56px 56px 0;
    color:var(--paper);
    background:var(--deep) url(/assets/images/backpic/back-3.webp) center/cover no-repeat;
    min-height:400px;
    display:flex;
    flex-direction:column;
    justify-content:space-between;
  }
  .hero-panel::before{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(158deg,rgba(20,21,43,.94) 6%,rgba(12,14,17,.88) 96%);
    z-index:1;
  }
  .hero-panel::after{
    content:"";
    position:absolute;inset:0;
    z-index:1;
    background-image:radial-gradient(rgba(247,246,242,.10) 1px,transparent 1px);
    background-size:24px 24px;
    opacity:.6;
    pointer-events:none;
  }
  .hero-inner{position:relative;z-index:2;max-width:780px;padding-bottom:44px}
  .hero-title{
    font-size:clamp(30px,4.6vw,52px);
    font-weight:800;
    line-height:1.12;
    letter-spacing:-.02em;
    margin:0 0 18px;
    max-width:16em;
  }
  .hero-sub{
    font-size:clamp(15px,1.5vw,17px);
    color:rgba(247,246,242,.78);
    max-width:640px;
    line-height:1.8;
    margin-bottom:30px;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
  .hero-meta{
    position:relative;
    z-index:2;
    display:flex;
    flex-wrap:wrap;
    gap:12px 40px;
    padding:20px 0 24px;
    border-top:1px solid rgba(247,246,242,.16);
    font-size:13px;
    color:rgba(247,246,242,.62);
  }
  .hero-meta b{
    display:block;
    font-family:var(--font-mono);
    font-size:17px;
    font-weight:600;
    color:var(--paper);
    letter-spacing:.02em;
    margin-top:2px;
  }
  .hero-meta span{display:block;letter-spacing:.06em}

  /* 要点卡 */
  .point-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
  .point-card{
    display:flex;
    flex-direction:column;
    gap:12px;
    padding:28px 26px 28px;
    background:var(--paper);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-1);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .point-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
  .point-num{
    font-family:var(--font-mono);
    font-size:13px;
    letter-spacing:.18em;
    color:var(--ink-500);
    display:flex;
    align-items:center;
    gap:10px;
  }
  .point-num::after{content:"";flex:1;height:1px;background:var(--line)}
  .point-card h3{font-size:20px;font-weight:700;line-height:1.4;margin:0}
  .point-card p{font-size:15px;color:var(--ink-500);line-height:1.85;margin:0}
  .tag-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:14px}
  .tag{
    display:inline-flex;
    align-items:center;
    height:24px;
    padding:0 10px;
    border-radius:var(--r-pill);
    background:var(--accent-soft);
    color:var(--accent-hover);
    font-size:12px;
    font-weight:600;
    letter-spacing:.02em;
  }
  .tag-line{
    background:transparent;
    border:1px solid var(--line);
    color:var(--ink-500);
    font-weight:500;
  }

  /* 对比表 */
  .table-shell{
    overflow-x:auto;
    -webkit-overflow-scrolling:touch;
    border:1px solid var(--line);
    border-radius:var(--r-md);
    background:var(--paper);
    box-shadow:var(--sh-1);
  }
  table.compare{width:100%;min-width:760px;border-collapse:collapse;font-size:15px}
  .compare thead th{
    background:var(--paper-2);
    text-align:left;
    font-size:12.5px;
    font-weight:700;
    letter-spacing:.1em;
    color:var(--ink-700);
    padding:14px 20px;
    border-bottom:1px solid var(--line);
    white-space:nowrap;
  }
  .compare tbody td{
    padding:16px 20px;
    border-bottom:1px solid var(--line);
    vertical-align:top;
    line-height:1.75;
    color:var(--ink-700);
  }
  .compare tbody th{
    padding:16px 20px;
    border-bottom:1px solid var(--line);
    text-align:left;
    font-weight:700;
    color:var(--ink-900);
    white-space:nowrap;
  }
  .compare tbody tr:nth-child(even){background:rgba(239,238,232,.5)}
  .compare tbody tr:last-child td,.compare tbody tr:last-child th{border-bottom:0}
  .table-note{
    margin-top:14px;
    font-size:13px;
    color:var(--ink-500);
    display:flex;
    align-items:center;
    gap:8px;
    flex-wrap:wrap;
  }
  .table-scroll-hint{display:none;font-size:12.5px;color:var(--ink-500);margin-bottom:10px}

  /* 目录行 */
  .dir-list{border-top:1px solid var(--line)}
  .dir-row{
    display:flex;
    align-items:center;
    gap:24px;
    padding:24px 10px;
    border-bottom:1px solid var(--line);
    transition:background .2s var(--ease),padding-left .2s var(--ease);
  }
  .dir-row:hover{background:var(--paper-2);padding-left:16px}
  .dir-num{
    flex:none;
    width:54px;
    font-family:var(--font-mono);
    font-size:26px;
    font-weight:500;
    line-height:1;
    color:#C9C6BC;
    transition:color .2s var(--ease);
  }
  .dir-row:hover .dir-num{color:var(--accent)}
  .dir-main{flex:1;min-width:0}
  .dir-main h3{font-size:19px;font-weight:700;line-height:1.4;margin:0 0 4px}
  .dir-main p{font-size:14px;color:var(--ink-500);line-height:1.75;margin:0}
  .dir-go{
    flex:none;
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--ink-500);
    font-family:var(--font-mono);
  }
  .dir-row:hover .dir-go{color:var(--accent-hover)}
  .dir-go svg{transition:transform .2s var(--ease)}
  .dir-row:hover .dir-go svg{transform:translateX(4px)}

  /* 流程 */
  .flow-layout{display:grid;grid-template-columns:0.85fr 1.15fr;gap:40px;align-items:stretch}
  .flow-media{
    position:relative;
    overflow:hidden;
    border-radius:var(--r-lg);
    border:1px solid var(--line);
    min-height:300px;
    box-shadow:var(--sh-1);
  }
  .flow-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
  .flow-media:hover img{transform:scale(1.03)}
  .flow-media figcaption{
    position:absolute;
    left:0;right:0;bottom:0;
    padding:42px 22px 18px;
    background:linear-gradient(to top,rgba(12,14,17,.82),rgba(12,14,17,0));
    color:rgba(247,246,242,.86);
    font-size:12.5px;
    letter-spacing:.04em;
  }
  .flow-steps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;border-top:1px solid var(--line)}
  .flow-step{
    position:relative;
    padding:26px 22px 24px 0;
    border-bottom:1px solid var(--line);
  }
  .flow-step:nth-child(odd){padding-right:26px}
  .flow-step:nth-child(even){padding-left:26px;border-left:1px solid var(--line)}
  .flow-step::before{
    content:"";
    position:absolute;
    top:-3.5px;left:0;
    width:7px;height:7px;
    border-radius:50%;
    background:var(--accent);
  }
  .flow-step:nth-child(even)::before{left:26px}
  .flow-idx{
    font-family:var(--font-mono);
    font-size:12px;
    letter-spacing:.2em;
    color:var(--ink-500);
    display:block;
    margin-bottom:8px;
  }
  .flow-step h3{font-size:17px;font-weight:700;margin:0 0 6px}
  .flow-step p{font-size:14.5px;color:var(--ink-500);line-height:1.8;margin:0}

  /* 折叠说明 */
  .fold{border-top:1px solid var(--line);margin-top:8px}
  .fold-item{border-bottom:1px solid var(--line)}
  .fold-btn{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    padding:22px 4px;
    text-align:left;
    font-size:17px;
    font-weight:600;
    line-height:1.5;
    transition:color .2s var(--ease);
  }
  .fold-btn:hover{color:var(--accent-hover)}
  .fold-icon{position:relative;flex:none;width:20px;height:20px;color:var(--ink-500)}
  .fold-icon::before,.fold-icon::after{
    content:"";
    position:absolute;
    background:currentColor;
    transition:transform .22s var(--ease);
  }
  .fold-icon::before{left:0;top:9.25px;width:20px;height:1.5px}
  .fold-icon::after{top:0;left:9.25px;width:1.5px;height:20px}
  .fold-btn[aria-expanded="true"] .fold-icon::after{transform:rotate(90deg);opacity:0}
  .fold-btn[aria-expanded="true"] .fold-icon{color:var(--accent-hover)}
  .fold-panel{max-height:0;overflow:hidden;transition:max-height .22s var(--ease)}
  .fold-panel-inner{
    max-width:720px;
    padding:0 4px 26px;
    font-size:15px;
    line-height:1.9;
    color:var(--ink-700);
  }

  /* 下一步链接 */
  .next-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
  .next-card{
    display:flex;
    flex-direction:column;
    gap:10px;
    padding:24px;
    border:1px solid var(--line);
    border-radius:var(--r-md);
    background:var(--paper);
    box-shadow:var(--sh-1);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .next-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
  .next-card span.next-kicker{
    font-family:var(--font-mono);
    font-size:11.5px;
    letter-spacing:.22em;
    color:var(--ink-500);
  }
  .next-card h3{font-size:17px;font-weight:700;line-height:1.45;margin:0}
  .next-card p{font-size:14px;color:var(--ink-500);line-height:1.75;margin:0}
  .next-card .next-go{
    margin-top:6px;
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:13.5px;
    font-weight:600;
    color:var(--accent-hover);
  }
  .next-card .next-go svg{transition:transform .2s var(--ease)}
  .next-card:hover .next-go svg{transform:translateX(4px)}

  /* CTA */
  .cta-block{
    position:relative;
    overflow:hidden;
    border-radius:var(--r-xl);
    background:var(--deep);
    color:var(--paper);
    padding:56px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:40px;
    flex-wrap:wrap;
  }
  .cta-block::after{
    content:"";
    position:absolute;inset:0;
    background-image:radial-gradient(rgba(247,246,242,.10) 1px,transparent 1px);
    background-size:26px 26px;
    opacity:.55;
    pointer-events:none;
  }
  .cta-copy{position:relative;z-index:2;max-width:600px}
  .cta-copy h2{
    font-size:clamp(24px,2.8vw,34px);
    font-weight:700;
    line-height:1.28;
    letter-spacing:-.01em;
    margin:0 0 12px;
  }
  .cta-copy p{color:rgba(247,246,242,.72);font-size:15px;line-height:1.8;margin:0}
  .cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px}

  /* Toast */
  .toast{
    position:fixed;
    left:50%;
    bottom:32px;
    z-index:95;
    transform:translate(-50%,14px);
    background:var(--paper);
    color:var(--ink-900);
    border:1px solid var(--line);
    border-radius:var(--r-pill);
    padding:12px 26px;
    font-size:14px;
    box-shadow:var(--sh-2);
    opacity:0;
    pointer-events:none;
    transition:opacity .22s var(--ease),transform .22s var(--ease);
  }
  .toast.is-show{opacity:1;transform:translate(-50%,0)}

  /* ============ 页脚 ============ */
  .site-foot{background:var(--ink-900);color:#E8E6E0;padding:72px 0 28px;margin-top:96px}
  .foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
  .foot-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;margin-bottom:16px;color:#fff}
  .site-foot h5{font-size:13px;letter-spacing:.2em;color:#9DA2AB;margin:0 0 16px;font-weight:600}
  .site-foot p{color:#A8ADB6;font-size:14px;line-height:1.85;margin:0;max-width:340px}
  .foot-links{display:flex;flex-direction:column;gap:10px}
  .foot-links a{font-size:14px;color:#A8ADB6;transition:color .2s var(--ease)}
  .foot-links a:hover{color:var(--accent)}
  .foot-bottom{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
    margin-top:56px;
    padding-top:22px;
    border-top:1px solid rgba(255,255,255,.12);
    font-size:13px;
    color:#8B909A;
  }
  .to-top{display:inline-flex;align-items:center;gap:6px;color:#A8ADB6;transition:color .2s var(--ease)}
  .to-top:hover{color:var(--accent)}
  .to-top svg{transition:transform .2s var(--ease)}
  .to-top:hover svg{transform:translateY(-3px)}

  /* ============ 响应式 ============ */
  @media (max-width:1080px){
    .dock-nav{display:none}
    .menu-btn{display:inline-flex}
    .dock-tools{margin-left:auto}
    .dock-search{right:104px}
  }
  @media (max-width:960px){
    .point-grid{grid-template-columns:1fr}
    .flow-layout{grid-template-columns:1fr;gap:28px}
    .flow-media{min-height:240px}
    .next-grid{grid-template-columns:1fr}
    .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
    .cta-block{padding:40px}
  }
  @media (max-width:768px){
    body{font-size:15.5px}
    .container{padding-left:20px;padding-right:20px}
    .page-main{padding-top:92px}
    .header-dock{padding:12px 16px 0}
    .dock{padding:7px 8px 7px 12px;gap:8px}
    .brand-name{font-size:14px}
    .brand-sub{display:none}
    .section{padding:60px 0}
    .section-tight{padding:48px 0}
    .section-head{margin-bottom:30px;align-items:flex-start;flex-direction:column;gap:16px}
    .hero-panel{padding:36px 24px 0;border-radius:var(--r-lg);min-height:360px}
    .hero-inner{padding-bottom:32px}
    .hero-actions{gap:10px}
    .hero-actions .btn{flex:1 1 auto;min-width:140px}
    .hero-meta{gap:10px 26px;padding:16px 0 20px}
    .hero-meta b{font-size:15px}
    .dir-row{gap:16px;padding:20px 4px;align-items:flex-start}
    .dir-row:hover{padding-left:8px}
    .dir-num{width:40px;font-size:21px}
    .dir-main h3{font-size:17px}
    .dir-go{font-size:12px;padding-top:2px}
    .table-scroll-hint{display:block}
    .cta-block{padding:32px 24px;border-radius:var(--r-lg);flex-direction:column;align-items:flex-start;gap:24px}
    .cta-actions{width:100%}
    .cta-actions .btn{flex:1 1 auto;min-width:120px}
    .site-foot{padding:56px 0 24px;margin-top:64px}
    .foot-grid{grid-template-columns:1fr;gap:28px}
    .foot-bottom{margin-top:36px}
    .fold-btn{font-size:16px;padding:18px 2px}
    .flow-step{padding:20px 0 20px 0 !important;border-left:0 !important}
    .flow-step:nth-child(even){padding-left:0 !important}
    .flow-step:nth-child(even)::before{left:0}
    .flow-steps{grid-template-columns:1fr}
  }
  @media (max-width:520px){
    .dock-search{right:96px}
    .dock-search.is-open{width:150px}
    .hero-title{font-size:27px}
    .btn{height:44px;padding:0 18px;font-size:14px}
    .btn-sm{height:36px;padding:0 14px;font-size:13px}
    .hero-actions .btn{width:100%}
    .point-card{padding:22px 20px}
    .cta-actions .btn{width:100%}
    .hero-meta{gap:8px 20px}
  }

  @media (prefers-reduced-motion: reduce){
    *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
    html{scroll-behavior:auto}
    .point-card:hover,.next-card:hover,.dir-row:hover{transform:none}
  }

/* roulang page: category5 */
:root{
    --ink-900:#0C0E11;
    --deep:#14152B;
    --paper:#F7F6F2;
    --paper-2:#EFEEE8;
    --accent:#12BFA2;
    --accent-h:#0AA48B;
    --accent-soft:rgba(18,191,162,.12);
    --ink-500:#5A616B;
    --line:#E3E1DA;
    --warn:#B4432F;
    --r-sm:8px;
    --r-md:14px;
    --r-lg:22px;
    --r-xl:28px;
    --sh-1:0 1px 2px rgba(12,14,17,.06);
    --sh-2:0 14px 34px -14px rgba(12,14,17,.22);
    --ease:cubic-bezier(.2,.7,.3,1);
    --mono:"IBM Plex Mono","Space Grotesk",ui-monospace,SFMono-Regular,Menlo,monospace;
  }

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

  html body{
    margin:0;
    background:var(--paper);
    color:var(--ink-900);
    font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }

  a{color:inherit;text-decoration:none;}
  img{max-width:100%;display:block;}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
  svg{display:block;}

  :focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
  .mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

  /* ---------- 顶部浮动 Dock ---------- */
  .site-head{position:sticky;top:0;z-index:60;padding:16px 0 6px;}

  .dock{
    display:flex;align-items:center;gap:14px;
    max-width:1180px;margin:0 auto;
    padding:8px 10px 8px 18px;
    background:rgba(247,246,242,.97);
    border:1px solid var(--line);
    border-radius:999px;
    box-shadow:var(--sh-1);
    transition:padding .24s var(--ease),box-shadow .24s var(--ease);
  }
  .dock.is-compact{padding:4px 10px 4px 18px;box-shadow:var(--sh-2);}

  .brand{display:flex;align-items:center;gap:9px;flex:0 0 auto;}
  .brand-mark{width:24px;height:24px;display:grid;place-items:center;background:var(--ink-900);border-radius:7px;}
  .brand-mark svg{width:15px;height:15px;}
  .brand-text{font-size:15px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;}

  .dock-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
  .dock-nav a{
    font-size:14px;color:var(--ink-500);
    padding:8px 11px;border-radius:999px;white-space:nowrap;
    transition:color .2s var(--ease),background .2s var(--ease);
  }
  .dock-nav a:hover{color:var(--ink-900);background:var(--paper-2);}
  .dock-nav a.is-active{background:var(--paper-2);color:var(--ink-900);font-weight:700;}
  .dock-nav a.is-active::after{
    content:"";display:block;width:4px;height:4px;border-radius:50%;
    background:var(--accent);margin:3px auto 0;
  }

  .dock-cta{
    flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
    height:38px;padding:0 18px;border-radius:999px;
    background:var(--ink-900);color:var(--paper);
    font-size:14px;font-weight:600;
    transition:background .2s var(--ease),color .2s var(--ease);
  }
  .dock-cta:hover{background:var(--accent);color:var(--ink-900);}

  .dock-menu{
    display:none;align-items:center;justify-content:center;
    width:40px;height:40px;border-radius:999px;
    border:1px solid var(--line);margin-left:auto;color:var(--ink-900);
  }
  .dock-menu svg{width:18px;height:18px;}

  /* ---------- 移动端抽屉 ---------- */
  .m-panel{
    position:fixed;inset:0;z-index:80;
    background:var(--paper);padding:22px 22px 40px;
    overflow-y:auto;
  }
  .m-panel[hidden]{display:none;}
  .m-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line);}
  .m-head .brand-text{font-size:16px;}
  .m-close{width:40px;height:40px;display:grid;place-items:center;border:1px solid var(--line);border-radius:999px;}
  .m-close svg{width:16px;height:16px;}
  .m-links{margin-top:8px;}
  .m-links a{
    display:flex;align-items:center;justify-content:space-between;
    font-size:18px;font-weight:600;padding:16px 2px;
    border-bottom:1px solid var(--line);color:var(--ink-900);
  }
  .m-links a span.arrow{color:var(--ink-500);font-size:15px;}
  .m-links a.is-active{color:var(--accent-h);}
  .m-cta{display:flex;align-items:center;justify-content:center;height:48px;margin-top:26px;border-radius:999px;background:var(--ink-900);color:var(--paper);font-weight:600;}

  /* ---------- Hero ---------- */
  .hero{position:relative;overflow:hidden;background:var(--deep);color:var(--paper);padding:64px 0 0;}
  .hero::before{
    content:"";position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-1.webp');
    background-size:cover;background-position:center 35%;
    opacity:.34;
  }
  .hero::after{
    content:"";position:absolute;inset:0;
    background-image:
      radial-gradient(circle,rgba(255,255,255,.6) 1px,transparent 1px),
      radial-gradient(circle,rgba(18,191,162,.55) 1px,transparent 1px);
    background-size:68px 68px,132px 132px;
    background-position:0 0,34px 38px;
    opacity:.16;
    mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.1));
  }
  .hero > .container{position:relative;z-index:2;padding-bottom:36px;}

  .eyebrow{
    display:inline-flex;align-items:center;gap:10px;
    font-size:12px;letter-spacing:.26em;color:var(--accent);
    text-transform:uppercase;
  }
  .eyebrow b{font-family:var(--mono);font-weight:600;letter-spacing:.1em;color:rgba(247,246,242,.55);}

  .hero-title{
    margin:18px 0 0;max-width:16em;
    font-size:clamp(30px,4.6vw,50px);
    font-weight:800;line-height:1.14;letter-spacing:-.02em;
  }
  .hero-sub{
    margin:18px 0 0;max-width:600px;
    font-size:16px;line-height:1.8;color:rgba(247,246,242,.74);
  }
  .hero-meta{
    display:flex;flex-wrap:wrap;gap:12px 34px;
    margin-top:34px;padding-top:16px;
    border-top:1px solid rgba(247,246,242,.16);
    font-size:13px;color:rgba(247,246,242,.6);
  }
  .hero-meta span{display:flex;align-items:center;gap:7px;}
  .hero-meta b{font-family:var(--mono);font-weight:600;color:var(--paper);}

  /* ---------- 搜索 ---------- */
  .search-sec{padding:56px 0 0;}
  .search-card{
    background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-lg);
    padding:20px;box-shadow:var(--sh-1);
  }
  .search-box{
    display:flex;align-items:center;gap:12px;
    border:1px solid var(--line);border-radius:999px;
    padding:6px 8px 6px 20px;background:var(--paper);
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .search-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft);}
  .search-box svg{width:18px;height:18px;flex:0 0 auto;color:var(--ink-500);}
  .search-box input{
    flex:1 1 auto;min-width:0;height:44px;border:0;background:transparent;outline:none;
    font-size:16px;color:var(--ink-900);
  }
  .search-box input::placeholder{color:#9AA0A8;}
  .btn-search{
    flex:0 0 auto;height:44px;padding:0 22px;border-radius:999px;
    background:var(--ink-900);color:var(--paper);font-size:14px;font-weight:600;
    transition:background .2s var(--ease),color .2s var(--ease);
  }
  .btn-search:hover{background:var(--accent);color:var(--ink-900);}

  .hot-words{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:16px;}
  .hot-words span.lbl{font-size:13px;color:var(--ink-500);margin-right:2px;}
  .chip{
    display:inline-flex;align-items:center;height:30px;padding:0 13px;
    border-radius:999px;border:1px solid var(--line);background:var(--paper);
    font-size:13px;color:var(--ink-500);
    transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
  }
  .chip:hover{border-color:var(--accent);color:var(--accent-h);background:var(--accent-soft);}

  /* ---------- 编号结论区 ---------- */
  .quick{padding:88px 0 0;}
  .quick-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center;}
  .sec-eyebrow{font-size:12px;letter-spacing:.24em;color:var(--accent-h);}
  .sec-title{
    margin:14px 0 0;font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.24;letter-spacing:-.01em;
  }
  .sec-lead{margin:14px 0 0;max-width:520px;font-size:15px;color:var(--ink-500);}
  .quick-list{margin:28px 0 0;padding:0;list-style:none;}
  .quick-list li{display:flex;gap:16px;padding:18px 0;border-top:1px solid var(--line);}
  .quick-list li:last-child{border-bottom:1px solid var(--line);}
  .quick-list .n{
    font-family:var(--mono);font-size:14px;color:var(--accent-h);
    padding-top:3px;flex:0 0 28px;
  }
  .quick-list h3{margin:0;font-size:16px;font-weight:700;line-height:1.6;}
  .quick-list p{margin:4px 0 0;font-size:14px;line-height:1.8;color:var(--ink-500);}
  .quick-figure{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);background:var(--paper-2);}
  .quick-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .24s var(--ease);}
  .quick-figure:hover img{transform:scale(1.03);}
  .quick-figure figcaption{
    position:absolute;left:0;right:0;bottom:0;
    padding:16px 18px;font-size:13px;color:rgba(247,246,242,.82);
    background:linear-gradient(180deg,rgba(12,14,17,0),rgba(12,14,17,.78));
  }

  /* ---------- 问答主体 ---------- */
  .qa-sec{padding:96px 0 0;}
  .qa-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start;}

  .qa-group + .qa-group{margin-top:46px;}
  .qa-group-title{
    display:flex;align-items:baseline;gap:14px;
    margin:0;padding-bottom:14px;border-bottom:1px solid var(--line);
    font-size:20px;font-weight:700;letter-spacing:-.01em;
  }
  .qa-group-title em{
    font-style:normal;font-family:var(--mono);font-size:13px;
    color:var(--accent-h);letter-spacing:.08em;
  }
  .qa-group-title small{margin-left:auto;font-size:13px;font-weight:400;color:var(--ink-500);}

  .qa-item{border-bottom:1px solid var(--line);}
  .qa-q{
    width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
    padding:20px 0;text-align:left;
    font-size:17px;font-weight:600;line-height:1.65;color:var(--ink-900);
    transition:color .2s var(--ease);
  }
  .qa-q:hover{color:var(--accent-h);}
  .qa-icon{position:relative;flex:0 0 18px;width:18px;height:18px;margin-top:5px;}
  .qa-icon::before,.qa-icon::after{
    content:"";position:absolute;background:var(--ink-500);border-radius:2px;
    transition:transform .22s var(--ease),background .2s var(--ease);
  }
  .qa-icon::before{left:0;top:8px;width:18px;height:2px;}
  .qa-icon::after{left:8px;top:0;width:2px;height:18px;}
  .qa-q[aria-expanded="true"] .qa-icon::before{background:var(--accent);}
  .qa-q[aria-expanded="true"] .qa-icon::after{transform:rotate(90deg);background:var(--accent);}
  .qa-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease);}
  .qa-a-inner{padding:0 0 22px;max-width:720px;font-size:15px;line-height:1.9;color:var(--ink-500);}
  .qa-a-inner strong{color:var(--ink-900);font-weight:600;}

  .qa-empty{
    margin-top:26px;padding:32px 24px;text-align:center;
    background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-md);
  }
  .qa-empty p{margin:10px 0 0;font-size:14px;color:var(--ink-500);}
  .qa-empty .star{width:26px;height:26px;margin:0 auto;color:var(--accent);}

  /* 侧栏 */
  .qa-side{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px;}
  .side-card{
    background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-lg);
    padding:24px;
  }
  .side-card h3{margin:0;font-size:17px;font-weight:700;}
  .side-card p{margin:10px 0 0;font-size:14px;line-height:1.85;color:var(--ink-500);}
  .btn-primary{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:999px;
    background:var(--ink-900);color:var(--paper);
    font-size:14px;font-weight:600;width:100%;margin-top:18px;
    transition:background .2s var(--ease),color .2s var(--ease);
  }
  .btn-primary:hover{background:var(--accent);color:var(--ink-900);}
  .btn-ghost{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:999px;
    border:1px solid var(--ink-900);color:var(--ink-900);background:transparent;
    font-size:14px;font-weight:600;
    transition:background .2s var(--ease),color .2s var(--ease);
  }
  .btn-ghost:hover{background:var(--ink-900);color:var(--paper);}

  .side-links{background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px 24px;}
  .side-links h4{margin:0 0 10px;font-size:13px;letter-spacing:.2em;color:var(--ink-500);font-weight:600;}
  .side-links a{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:11px 0;border-bottom:1px solid var(--line);
    font-size:14px;color:var(--ink-900);
    transition:color .2s var(--ease);
  }
  .side-links a:last-child{border-bottom:0;}
  .side-links a:hover{color:var(--accent-h);}
  .side-links a span{font-family:var(--mono);font-size:12px;color:var(--ink-500);}

  /* ---------- 相关分类目录 ---------- */
  .related{padding:96px 0 0;}
  .related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;}
  .dir-list{margin-top:28px;border-top:1px solid var(--line);}
  .dir-row{
    display:flex;align-items:center;gap:22px;
    padding:22px 16px;margin:0 -16px;border-bottom:1px solid var(--line);
    transition:background .2s var(--ease);
  }
  .dir-row:hover{background:var(--paper-2);}
  .dir-num{
    font-family:var(--mono);font-size:22px;color:#CFCCC2;flex:0 0 44px;
    transition:color .2s var(--ease);
  }
  .dir-row:hover .dir-num{color:var(--accent);}
  .dir-body{flex:1 1 auto;min-width:0;}
  .dir-body h3{margin:0;font-size:20px;font-weight:700;letter-spacing:-.01em;}
  .dir-body p{margin:2px 0 0;font-size:14px;color:var(--ink-500);}
  .dir-arrow{flex:0 0 auto;color:var(--ink-500);transition:transform .2s var(--ease),color .2s var(--ease);}
  .dir-row:hover .dir-arrow{transform:translateX(4px);color:var(--accent-h);}

  /* ---------- 深色 CTA ---------- */
  .cta-sec{padding:96px 0 0;}
  .cta-deep{
    position:relative;overflow:hidden;
    background:var(--deep);color:var(--paper);
    border-radius:var(--r-xl);
    padding:clamp(32px,5vw,64px);
    display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  }
  .cta-deep::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:radial-gradient(circle,rgba(255,255,255,.5) 1px,transparent 1px);
    background-size:74px 74px;opacity:.12;
  }
  .cta-deep h2{position:relative;z-index:2;margin:0;font-size:clamp(22px,3vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.01em;max-width:14em;}
  .cta-deep p{position:relative;z-index:2;margin:12px 0 0;font-size:15px;color:rgba(247,246,242,.7);max-width:32em;}
  .cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px;}
  .btn-light{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:999px;
    background:var(--paper);color:var(--ink-900);font-size:14px;font-weight:600;
    transition:background .2s var(--ease),color .2s var(--ease);
  }
  .btn-light:hover{background:var(--accent);color:var(--ink-900);}
  .btn-outline-light{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:999px;
    border:1px solid rgba(247,246,242,.4);color:var(--paper);font-size:14px;font-weight:600;
    transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  }
  .btn-outline-light:hover{background:rgba(247,246,242,.12);border-color:rgba(247,246,242,.7);}

  /* ---------- 页脚 ---------- */
  .site-foot{background:var(--ink-900);color:var(--paper);padding:64px 0 26px;margin-top:96px;}
  .foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
  .foot-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;margin-bottom:14px;}
  .foot-brand .brand-mark{width:24px;height:24px;background:rgba(255,255,255,.08);}
  .foot-grid p{margin:0;font-size:14px;line-height:1.85;color:rgba(247,246,242,.62);max-width:340px;}
  .foot-grid h5{margin:0 0 12px;font-size:13px;letter-spacing:.2em;font-weight:600;color:rgba(247,246,242,.55);}
  .foot-links a{
    display:block;font-size:14px;color:rgba(247,246,242,.78);padding:5px 0;
    transition:color .2s var(--ease);
  }
  .foot-links a:hover{color:var(--accent);}
  .foot-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    margin-top:46px;padding-top:20px;border-top:1px solid rgba(247,246,242,.14);
    font-size:13px;color:rgba(247,246,242,.55);
  }
  .to-top{display:inline-flex;align-items:center;gap:6px;color:rgba(247,246,242,.8);transition:color .2s var(--ease);}
  .to-top:hover{color:var(--accent);}

  /* ---------- Toast ---------- */
  .toast{
    position:fixed;left:50%;bottom:32px;transform:translate(-50%,16px);
    background:var(--paper);color:var(--ink-900);
    border:1px solid var(--line);border-radius:999px;
    padding:11px 22px;font-size:14px;box-shadow:var(--sh-2);
    opacity:0;pointer-events:none;z-index:120;
    transition:opacity .2s var(--ease),transform .2s var(--ease);
  }
  .toast.show{opacity:1;transform:translate(-50%,0);}

  /* ---------- 响应式 ---------- */
  @media (max-width:1180px){
    .dock-nav a{padding:8px 9px;font-size:13.5px;}
    .brand-text{font-size:14px;}
  }

  @media (max-width:1023px){
    .dock-nav,.dock-cta{display:none;}
    .dock-menu{display:flex;}
    .quick-grid{grid-template-columns:1fr;gap:32px;}
    .quick-figure{order:-1;}
    .qa-layout{grid-template-columns:1fr;gap:36px;}
    .qa-side{position:static;}
    .site-head{padding:12px 0 4px;}
  }

  @media (max-width:767px){
    .container{padding:0 20px;}
    .hero{padding-top:48px;}
    .hero-meta{gap:10px 22px;font-size:12.5px;}
    .search-sec{padding-top:40px;}
    .quick{padding-top:64px;}
    .qa-sec,.related,.cta-sec{padding-top:64px;}
    .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
    .dir-row{gap:16px;padding:18px 12px;margin:0 -12px;}
    .dir-num{font-size:18px;flex-basis:34px;}
    .dir-body h3{font-size:18px;}
    .cta-deep{padding:30px 24px;}
    .btn-light,.btn-outline-light{width:100%;}
    .cta-actions{width:100%;}
    .qa-q{font-size:16px;gap:14px;}
    .site-foot{margin-top:64px;padding-top:48px;}
  }

  @media (max-width:520px){
    .brand-text{font-size:13px;}
    .search-box{padding:4px 6px 4px 14px;gap:8px;}
    .btn-search{padding:0 16px;font-size:13px;}
    .search-box input{font-size:15px;}
    .hero-title{font-size:clamp(26px,8vw,34px);}
    .foot-grid{grid-template-columns:1fr;}
    .qa-group-title{flex-wrap:wrap;gap:8px 12px;}
    .qa-group-title small{margin-left:0;width:100%;}
  }

  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{
      transition-duration:.01ms !important;
      animation-duration:.01ms !important;
      scroll-behavior:auto !important;
    }
    .quick-figure:hover img{transform:none;}
    .dir-row:hover .dir-arrow{transform:none;}
  }

/* roulang page: category6 */
:root{
    --ink-900:#0C0E11;
    --ink-500:#5A616B;
    --deep:#14152B;
    --paper:#F7F6F2;
    --paper-2:#EFEEE8;
    --accent:#12BFA2;
    --accent-hover:#0AA48B;
    --accent-soft:rgba(18,191,162,.12);
    --line:#E3E1DA;
    --danger:#B4432F;
    --r-sm:8px;
    --r-md:14px;
    --r-lg:22px;
    --r-cover:28px;
    --shadow-1:0 1px 2px rgba(12,14,17,.06);
    --shadow-2:0 14px 34px -14px rgba(12,14,17,.22);
    --ease:cubic-bezier(.2,.7,.3,1);
    --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
    --font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,monospace;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink-900);
    font-family:var(--font-cn);
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{display:block;max-width:100%}
  a{color:inherit;text-decoration:none}
  button{font:inherit;cursor:pointer;color:inherit}
  h1,h2,h3,h4,h5,p{margin:0}
  ul{margin:0;padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
  .mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
  .eyebrow{
    display:inline-flex;align-items:center;gap:10px;
    font-family:var(--font-mono);font-size:12px;letter-spacing:.28em;
    color:var(--ink-500);text-transform:uppercase;
  }
  .eyebrow::before{content:"";width:22px;height:1px;background:var(--accent)}
  .section{padding:88px 0}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
  .section-head h2{font-size:clamp(26px,3vw,38px);line-height:1.2;font-weight:700;letter-spacing:-.01em}
  .section-head p{max-width:620px;color:var(--ink-500);font-size:15px;margin-top:10px}
  .divider{height:1px;background:var(--line);border:0;margin:0}

  /* ============ Dock 导航 ============ */
  .dock-shell{
    position:fixed;top:18px;left:50%;transform:translateX(-50%);
    width:calc(100% - 32px);max-width:1080px;z-index:120;
    transition:top .24s var(--ease);
  }
  .dock{
    display:flex;align-items:center;gap:18px;
    padding:10px 12px 10px 16px;
    background:rgba(247,246,242,.97);
    border:1px solid var(--line);
    border-radius:999px;
    box-shadow:var(--shadow-1);
    transition:box-shadow .24s var(--ease),padding .24s var(--ease);
  }
  .dock.is-compact{padding-top:7px;padding-bottom:7px;box-shadow:0 10px 26px -16px rgba(12,14,17,.35)}
  .dock-brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .brand-mark{
    width:30px;height:30px;border-radius:9px;background:var(--ink-900);
    display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  }
  .brand-mark svg{width:16px;height:16px}
  .brand-text{display:flex;flex-direction:column;line-height:1.15}
  .brand-text strong{font-size:15px;font-weight:800;letter-spacing:-.01em}
  .brand-text small{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.2em;color:var(--ink-500);margin-top:3px}
  .dock-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
  .dock-nav a{
    position:relative;font-size:13.5px;font-weight:500;color:var(--ink-500);
    padding:8px 11px;border-radius:999px;white-space:nowrap;
    transition:color .2s var(--ease),background .2s var(--ease);
  }
  .dock-nav a::after{
    content:"";position:absolute;left:50%;bottom:3px;width:4px;height:4px;border-radius:50%;
    background:var(--accent);opacity:0;transform:translate(-50%,4px);
    transition:opacity .2s var(--ease),transform .2s var(--ease);
  }
  .dock-nav a:hover{color:var(--ink-900);background:var(--paper-2)}
  .dock-nav a:hover::after{opacity:1;transform:translate(-50%,0)}
  .dock-nav a.is-active{background:var(--paper-2);color:var(--ink-900);font-weight:700}
  .dock-nav a.is-active::after{opacity:0}
  .dock-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
  .icon-btn{
    width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);background:transparent;border-radius:999px;
    transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
  }
  .icon-btn:hover{background:var(--paper-2);border-color:#d6d4cc}
  .icon-btn:active{transform:scale(.96)}
  .menu-btn{display:none}

  .dock-search{
    margin-top:10px;max-width:520px;margin-left:auto;margin-right:8px;
    background:var(--paper);border:1px solid var(--line);border-radius:999px;
    padding:6px 8px 6px 16px;display:none;align-items:center;gap:10px;
    box-shadow:var(--shadow-1);
  }
  .dock-search.is-open{display:flex}
  .dock-search input{
    flex:1;border:0;background:transparent;font-size:14px;padding:6px 0;outline:none;
  }
  .dock-search input::placeholder{color:#9aa0a8}

  .drawer{
    position:fixed;inset:0;z-index:200;background:var(--paper);
    display:none;flex-direction:column;padding:22px 20px 32px;overflow-y:auto;
  }
  .drawer.is-open{display:flex}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
  .drawer-links{display:flex;flex-direction:column}
  .drawer-links a{font-size:18px;font-weight:600;padding:16px 2px;border-bottom:1px solid var(--line)}
  .drawer-links a.is-active{color:var(--accent-hover)}
  .drawer-cta{margin-top:28px;display:flex;flex-direction:column;gap:12px}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:999px;border:1px solid transparent;
    font-size:14px;font-weight:700;letter-spacing:.01em;
    transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
  }
  .btn svg{transition:transform .22s var(--ease)}
  .btn:hover svg{transform:translateX(3px)}
  .btn:active{transform:translateY(1px)}
  .btn-sm{height:40px;padding:0 16px;font-size:13px}
  .btn-dark{background:var(--ink-900);color:var(--paper)}
  .btn-dark:hover{background:var(--accent);color:var(--ink-900)}
  .btn-outline{border-color:var(--ink-900);color:var(--ink-900);background:transparent}
  .btn-outline:hover{background:var(--ink-900);color:var(--paper)}
  .btn-light{background:var(--paper);color:var(--ink-900)}
  .btn-light:hover{background:var(--accent);color:var(--ink-900)}
  .btn-ghost-dark{border-color:rgba(247,246,242,.32);color:var(--paper);background:transparent}
  .btn-ghost-dark:hover{background:var(--paper);color:var(--ink-900);border-color:var(--paper)}
  .link-arrow{
    display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
    color:var(--ink-900);border-bottom:1px solid transparent;padding-bottom:2px;
    transition:border-color .2s var(--ease),color .2s var(--ease);
  }
  .link-arrow svg{transition:transform .2s var(--ease)}
  .link-arrow:hover{color:var(--accent-hover);border-color:var(--accent-hover)}
  .link-arrow:hover svg{transform:translateX(4px)}

  /* ============ 内页 Hero ============ */
  .page-hero{
    position:relative;margin:104px auto 0;max-width:1240px;
    border-radius:var(--r-cover);overflow:hidden;color:var(--paper);
    background-image:
      linear-gradient(112deg,rgba(20,21,43,.95) 0%,rgba(12,14,17,.9) 48%,rgba(12,14,17,.72) 100%),
      url('/assets/images/backpic/back-1.webp');
    background-size:cover;background-position:center;
  }
  .page-hero .stars{
    position:absolute;inset:0;pointer-events:none;opacity:.75;
    background-image:
      radial-gradient(circle,rgba(247,246,242,.18) 1px,transparent 1px),
      radial-gradient(circle,rgba(18,191,162,.16) 1px,transparent 1px),
      linear-gradient(rgba(227,225,218,.05) 1px,transparent 1px),
      linear-gradient(90deg,rgba(227,225,218,.05) 1px,transparent 1px);
    background-size:120px 120px,180px 180px,24px 24px,24px 24px;
    background-position:0 0,40px 60px,0 0,0 0;
  }
  .page-hero-inner{position:relative;z-index:2;padding:64px 56px 0}
  .hero-badge{
    display:inline-flex;align-items:center;gap:10px;
    font-family:var(--font-mono);font-size:12px;letter-spacing:.24em;
    padding:6px 14px;border-radius:999px;
    background:var(--accent-soft);color:#5FE3CB;border:1px solid rgba(18,191,162,.32);
  }
  .page-hero h1{
    font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.14;
    letter-spacing:-.02em;margin:22px 0 18px;max-width:820px;
  }
  .page-hero .lede{max-width:660px;font-size:16px;color:rgba(247,246,242,.78);line-height:1.85}
  .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
  .hero-meta{
    position:relative;z-index:2;margin-top:46px;
    border-top:1px solid rgba(247,246,242,.16);
    display:grid;grid-template-columns:repeat(4,1fr);
  }
  .hero-meta div{padding:20px 0 24px;border-right:1px solid rgba(247,246,242,.12)}
  .hero-meta div:last-child{border-right:0}
  .hero-meta span{display:block;font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:rgba(247,246,242,.52)}
  .hero-meta strong{display:block;font-family:var(--font-mono);font-size:22px;font-weight:600;margin-top:6px}
  .hero-meta div{padding-left:0}
  .hero-meta div+div{padding-left:24px}

  /* ============ 概览条 ============ */
  .overview{
    display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
    background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);
    overflow:hidden;margin-top:28px;
  }
  .overview-cell{background:var(--paper);padding:24px 22px}
  .overview-cell span{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--ink-500)}
  .overview-cell strong{display:block;font-family:var(--font-mono);font-size:26px;font-weight:600;line-height:1.3;margin:6px 0 4px}
  .overview-cell p{font-size:13px;color:var(--ink-500);line-height:1.7}

  /* ============ 阅读指引 ============ */
  .guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
  .guide-card{
    border:1px solid var(--line);border-radius:var(--r-md);background:var(--paper);
    padding:26px 24px;box-shadow:var(--shadow-1);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .guide-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#d6d4cc}
  .guide-num{font-family:var(--font-mono);font-size:28px;font-weight:600;color:var(--line);line-height:1}
  .guide-card:hover .guide-num{color:var(--accent)}
  .guide-card h3{font-size:19px;font-weight:700;margin:14px 0 8px}
  .guide-card p{font-size:14px;color:var(--ink-500);line-height:1.8}
  .tag{
    display:inline-flex;align-items:center;gap:6px;
    font-size:12px;padding:3px 10px;border-radius:999px;
    background:var(--accent-soft);color:#0A8E79;border:1px solid rgba(18,191,162,.28);
    white-space:nowrap;
  }
  .tag-neutral{background:transparent;color:var(--ink-500);border:1px solid var(--line)}
  .tag-stack{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

  /* ============ 公告列表 ============ */
  .notice-layout{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:48px;align-items:start}
  .month-group{margin-bottom:44px}
  .month-head{display:flex;align-items:center;gap:14px;margin-bottom:8px}
  .month-head h3{font-family:var(--font-mono);font-size:15px;font-weight:600;letter-spacing:.08em;white-space:nowrap}
  .month-head .rule{flex:1;height:1px;background:var(--line)}
  .month-head .count{font-family:var(--font-mono);font-size:12px;color:var(--ink-500)}
  .notice-row{
    display:grid;grid-template-columns:82px minmax(0,1fr) auto 20px;
    gap:16px;align-items:center;
    padding:20px 12px;border-bottom:1px solid var(--line);
    border-radius:var(--r-sm);
    transition:background .2s var(--ease),transform .2s var(--ease);
  }
  .notice-row:hover{background:var(--paper-2)}
  .notice-row:hover .row-arrow{transform:translateX(4px);color:var(--accent-hover)}
  .notice-date{font-family:var(--font-mono);font-size:13px;color:var(--ink-500)}
  .notice-title{font-size:16.5px;font-weight:600;line-height:1.6}
  .notice-sub{font-size:13px;color:var(--ink-500);margin-top:2px;line-height:1.7}
  .row-arrow{color:#b7bcc2;transition:transform .2s var(--ease),color .2s var(--ease)}

  .side-title{font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;color:var(--ink-500);margin-bottom:14px}
  .pick-card{
    display:block;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
    background:var(--paper);box-shadow:var(--shadow-1);margin-bottom:16px;
    transition:transform .22s var(--ease),box-shadow .22s var(--ease);
  }
  .pick-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
  .pick-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--paper-2)}
  .pick-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
  .pick-card:hover .thumb img{transform:scale(1.03)}
  .pick-body{padding:16px 18px 18px}
  .pick-body h4{font-size:15px;font-weight:700;line-height:1.55;margin:10px 0 6px}
  .pick-body p{font-size:13px;color:var(--ink-500);line-height:1.7}

  .side-note{
    border:1px solid var(--line);background:var(--paper-2);
    border-radius:var(--r-md);padding:20px;margin-top:8px;
  }
  .side-note h4{font-size:14px;font-weight:700;margin-bottom:8px}
  .side-note p{font-size:13px;color:var(--ink-500);line-height:1.75}
  .side-note a{margin-top:12px}

  /* ============ 标签说明 ============ */
  .tag-legend{border-top:1px solid var(--line)}
  .legend-row{
    display:grid;grid-template-columns:140px minmax(0,1fr) 120px;gap:20px;align-items:center;
    padding:22px 4px;border-bottom:1px solid var(--line);
    transition:background .2s var(--ease);
  }
  .legend-row:hover{background:var(--paper-2)}
  .legend-row p{font-size:14.5px;color:var(--ink-500);line-height:1.8}
  .legend-state{font-family:var(--font-mono);font-size:12px;text-align:right;color:var(--ink-500)}

  /* ============ FAQ ============ */
  .faq-wrap{max-width:900px}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-q{
    width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
    background:none;border:0;padding:24px 2px;text-align:left;
    font-size:17px;font-weight:600;line-height:1.65;color:var(--ink-900);
    transition:color .2s var(--ease);
  }
  .faq-q:hover{color:var(--accent-hover)}
  .faq-icon{position:relative;width:18px;height:18px;flex:0 0 auto;margin-top:4px}
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
    transform:translate(-50%,-50%);transition:transform .22s var(--ease),opacity .22s var(--ease);
  }
  .faq-icon::before{width:16px;height:2px}
  .faq-icon::after{width:2px;height:16px}
  .faq-q[aria-expanded="true"] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease)}
  .faq-a-inner{max-width:720px;padding:0 2px 24px;font-size:15px;color:var(--ink-500);line-height:1.85}

  /* ============ 深色 CTA ============ */
  .cta-band{
    position:relative;overflow:hidden;border-radius:var(--r-cover);
    background:linear-gradient(135deg,#14152B 0%,#0C0E11 100%);
    color:var(--paper);padding:60px 56px;
  }
  .cta-band .stars{
    position:absolute;inset:0;pointer-events:none;opacity:.6;
    background-image:
      radial-gradient(circle,rgba(247,246,242,.16) 1px,transparent 1px),
      radial-gradient(circle,rgba(18,191,162,.14) 1px,transparent 1px);
    background-size:140px 140px,220px 220px;
    background-position:10px 20px,70px 90px;
  }
  .cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
  .cta-inner h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.25;letter-spacing:-.01em;max-width:520px}
  .cta-inner p{margin-top:10px;font-size:15px;color:rgba(247,246,242,.7);max-width:520px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px}

  /* ============ 相关分类 ============ */
  .cat-list{border-top:1px solid var(--line)}
  .cat-row{
    display:flex;align-items:center;gap:20px;
    padding:22px 8px;border-bottom:1px solid var(--line);
    transition:background .2s var(--ease),padding-left .2s var(--ease);
  }
  .cat-row:hover{background:var(--paper-2);padding-left:14px}
  .cat-row:hover .cat-num{color:var(--accent);-webkit-text-stroke-color:var(--accent)}
  .cat-row:hover .row-arrow{transform:translateX(4px);color:var(--accent-hover)}
  .cat-num{
    font-family:var(--font-mono);font-size:22px;font-weight:600;color:transparent;
    -webkit-text-stroke:1px #c9c7c0;letter-spacing:.04em;flex:0 0 auto;width:44px;
    transition:color .2s var(--ease),-webkit-text-stroke-color .2s var(--ease);
  }
  .cat-row h3{font-size:19px;font-weight:700;flex:1;min-width:0}
  .cat-row h3 small{display:block;font-size:13px;font-weight:400;color:var(--ink-500);margin-top:2px;line-height:1.7}
  .cat-row .meta{font-family:var(--font-mono);font-size:13px;color:var(--ink-500);white-space:nowrap}

  /* ============ toast ============ */
  .toast{
    position:fixed;left:50%;bottom:28px;transform:translate(-50%,12px);
    background:var(--paper);color:var(--ink-900);border:1px solid var(--line);
    box-shadow:var(--shadow-2);border-radius:999px;padding:12px 22px;font-size:14px;
    z-index:300;opacity:0;pointer-events:none;transition:opacity .2s var(--ease),transform .2s var(--ease);
  }
  .toast.is-show{opacity:1;transform:translate(-50%,0)}

  /* ============ 页脚 ============ */
  .site-foot{background:var(--ink-900);color:var(--paper);padding:72px 0 28px;margin-top:96px}
  .foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
  .foot-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;margin-bottom:16px}
  .foot-brand .brand-mark{background:rgba(247,246,242,.08)}
  .site-foot p{font-size:13.5px;color:rgba(247,246,242,.62);line-height:1.85;max-width:340px}
  .site-foot h5{font-size:13px;letter-spacing:.2em;font-weight:600;color:rgba(247,246,242,.9);margin:0 0 16px}
  .foot-links{display:flex;flex-direction:column;gap:10px}
  .foot-links a{font-size:14px;color:rgba(247,246,242,.66);transition:color .2s var(--ease),transform .2s var(--ease);width:fit-content}
  .foot-links a:hover{color:var(--accent)}
  .foot-bottom{
    margin-top:56px;padding-top:22px;border-top:1px solid rgba(247,246,242,.14);
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:rgba(247,246,242,.55);
  }
  .to-top{display:inline-flex;align-items:center;gap:6px;color:rgba(247,246,242,.75);transition:color .2s var(--ease)}
  .to-top:hover{color:var(--accent)}

  /* ============ 响应式 ============ */
  @media (max-width:1180px){
    .dock-nav a{padding:8px 8px;font-size:13px}
  }
  @media (max-width:1024px){
    .dock-nav{display:none}
    .menu-btn{display:inline-flex}
    .notice-layout{grid-template-columns:1fr;gap:40px}
    .overview{grid-template-columns:repeat(2,1fr)}
    .guide-grid{grid-template-columns:1fr}
    .page-hero-inner{padding:52px 36px 0}
    .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  }
  @media (max-width:900px){
    .brand-text small{display:none}
    .section{padding:64px 0}
  }
  @media (max-width:768px){
    .page-hero{margin-top:92px;border-radius:22px}
    .page-hero-inner{padding:40px 24px 0}
    .hero-meta{grid-template-columns:1fr 1fr}
    .hero-meta div{border-right:0;border-bottom:1px solid rgba(247,246,242,.12);padding:16px 0}
    .hero-meta div+div{padding-left:0}
    .hero-meta div:nth-child(odd){padding-right:16px}
    .hero-meta div:nth-child(even){padding-left:16px;border-left:1px solid rgba(247,246,242,.12)}
    .legend-row{grid-template-columns:1fr;gap:8px}
    .legend-state{text-align:left}
    .cta-band{padding:40px 26px}
    .cat-row{flex-wrap:wrap;gap:12px}
    .cat-row .meta{order:3}
    .dino{display:none}
  }
  @media (max-width:640px){
    .container{padding:0 20px}
    .notice-row{grid-template-columns:64px minmax(0,1fr) 16px;gap:12px;padding:16px 6px}
    .notice-row .tag{display:none}
    .overview{grid-template-columns:1fr 1fr}
    .overview-cell{padding:18px 16px}
    .overview-cell strong{font-size:22px}
    .foot-grid{grid-template-columns:1fr}
    .site-foot{padding:56px 0 24px;margin-top:72px}
    .cta-actions{width:100%}
    .cta-actions .btn{flex:1}
    .section-head{margin-bottom:28px}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition-duration:.001ms !important;animation-duration:.001ms !important}
    html{scroll-behavior:auto}
    .guide-card:hover,.pick-card:hover,.notice-row:hover{transform:none}
  }