/* roulang page: index */
:root{
    --primary:#FF6A2B;
    --primary-hover:#FF7F47;
    --primary-active:#E45818;
    --accent:#2FD6C3;
    --ink:#131017;
    --panel:#1C1922;
    --panel-2:#171420;
    --line:#2E2A38;
    --paper:#F6F4F1;
    --text:#F4F1F6;
    --text-2:#A9A3B3;
    --text-dark:#1B1720;
    --text-dark-2:#5B5566;
    --danger:#E5484D;
    --warn:#F2B21A;
    --soft:#FFD9C7;
    --r-card:14px;
    --r-btn:10px;
    --r-field:10px;
    --r-img:12px;
    --shadow-dark:0 12px 32px rgba(0,0,0,.35);
    --shadow-paper:0 8px 24px rgba(19,16,23,.08);
    --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(--ink);
    color:var(--text);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16.5px;
    line-height:1.9;
    letter-spacing:.01em;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input,select,textarea{font:inherit;color:inherit;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;}
  h1{font-size:40px;}
  h2{font-size:28px;margin-top:40px;margin-bottom:16px;}
  h3{font-size:19px;margin-top:28px;margin-bottom:10px;font-weight:600;}
  p{margin:0 0 20px;}
  .num{font-variant-numeric:tabular-nums;}
  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
  .section{padding:96px 0;}
  .section-tight{padding:72px 0;}
  .section-sub{color:var(--text-2);max-width:760px;margin-bottom:36px;font-size:16px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;font-weight:500;letter-spacing:.04em;
    color:var(--accent);text-transform:uppercase;
    border:1px solid rgba(47,214,195,.35);
    border-radius:999px;padding:4px 12px;margin-bottom:16px;
  }
  .eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}
  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:46px;padding:0 22px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
    transition:transform .18s var(--ease),background-color .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
  }
  .btn-primary{background:var(--primary);color:#1B1010;box-shadow:0 2px 8px rgba(255,106,43,.25);}
  .btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 8px 20px rgba(255,106,43,.35);}
  .btn-primary:active{background:var(--primary-active);transform:translateY(0);box-shadow:0 2px 6px rgba(255,106,43,.25);}
  .btn-ghost{background:transparent;color:var(--accent);border-color:rgba(47,214,195,.55);}
  .btn-ghost:hover{background:rgba(47,214,195,.08);border-color:var(--accent);transform:translateY(-1px);}
  .btn-ghost:active{background:rgba(47,214,195,.14);transform:translateY(0);}
  .btn-outline{background:transparent;color:var(--text);border-color:var(--line);}
  .btn-outline:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);}
  .btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
  .btn-block{width:100%;}
  a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,label:focus-visible{
    outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;
  }
  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(19,16,23,.94);
    border-bottom:1px solid var(--line);
    backdrop-filter:blur(6px);
  }
  .nav-bar{display:flex;align-items:center;gap:28px;min-height:72px;}
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{
    width:36px;height:36px;border-radius:10px;flex-shrink:0;
    background:linear-gradient(140deg,var(--primary),#ff9a5c);
    color:#1B1010;font-weight:700;font-size:18px;
    display:flex;align-items:center;justify-content:center;
  }
  .brand-text{font-size:17px;font-weight:700;letter-spacing:.02em;white-space:nowrap;}
  .brand-suffix{font-size:11px;font-weight:500;color:var(--accent);border:1px solid rgba(47,214,195,.4);border-radius:999px;padding:1px 6px;margin-left:6px;vertical-align:2px;}
  .nav-links{display:flex;align-items:center;gap:6px;flex:1;}
  .nav-link{
    position:relative;display:inline-flex;align-items:center;
    min-height:44px;padding:0 12px;font-size:15px;color:var(--text-2);
    transition:color .18s var(--ease);
  }
  .nav-link::after{
    content:"";position:absolute;left:12px;right:12px;bottom:8px;height:2px;
    background:var(--primary);transform:scaleX(0);transform-origin:left;
    transition:transform .18s var(--ease);
  }
  .nav-link:hover,.nav-link:focus-visible,.nav-link.is-active{color:var(--text);}
  .nav-link:hover::after,.nav-link:focus-visible::after,.nav-link.is-active::after{transform:scaleX(1);}
  .nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
  .mega-wrap{position:relative;}
  .mega-trigger{
    min-height:44px;padding:0 14px;border-radius:var(--r-btn);
    background:transparent;border:1px solid var(--line);color:var(--text-2);
    font-size:14.5px;cursor:pointer;transition:color .18s var(--ease),border-color .18s var(--ease);
  }
  .mega-wrap:hover .mega-trigger,.mega-wrap:focus-within .mega-trigger{color:var(--accent);border-color:rgba(47,214,195,.5);}
  .mega-panel{
    position:absolute;right:0;top:calc(100% + 12px);width:820px;
    background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-dark);padding:24px;
    display:grid;grid-template-columns:1fr 1fr 1.1fr;gap:24px;
    opacity:0;visibility:hidden;transform:translateY(6px);
    transition:opacity .15s var(--ease),transform .15s var(--ease),visibility .15s;
  }
  .mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
  .mega-title{font-size:12px;letter-spacing:.04em;color:var(--accent);font-weight:500;margin-bottom:12px;}
  .mega-list li + li{margin-top:2px;}
  .mega-list a{
    display:block;padding:8px 10px;border-radius:8px;font-size:14.5px;color:var(--text-2);
    transition:background-color .18s var(--ease),color .18s var(--ease);
  }
  .mega-list a:hover{background:rgba(255,106,43,.1);color:var(--text);}
  .mega-time{font-size:12px;color:#7d7789;margin-left:6px;}
  .mega-card{
    background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r-img);
    padding:14px;display:flex;flex-direction:column;gap:12px;
  }
  .mega-card img{width:100%;height:110px;object-fit:cover;border-radius:8px;}
  .mega-card p{font-size:13.5px;color:var(--text-2);margin:0;line-height:1.7;}
  .hamburger{
    display:none;width:46px;height:46px;border-radius:var(--r-btn);
    border:1px solid var(--line);background:transparent;cursor:pointer;
    align-items:center;justify-content:center;flex-direction:column;gap:5px;
  }
  .hamburger span{display:block;width:20px;height:2px;background:var(--text);border-radius:2px;}
  .nav-toggle{position:absolute;width:0;height:0;opacity:0;pointer-events:none;}
  .mobile-drawer{
    max-height:0;overflow:hidden;background:var(--panel);border-top:1px solid transparent;
    transition:max-height .25s var(--ease);
  }
  .nav-toggle:checked ~ .mobile-drawer{max-height:640px;border-top-color:var(--line);}
  .mobile-drawer-inner{padding:18px 24px 26px;}
  .mobile-drawer a{
    display:block;padding:14px 4px;font-size:17px;color:var(--text);border-bottom:1px solid rgba(46,42,56,.7);
  }
  .mobile-drawer a:last-of-type{border-bottom:0;}
  .mobile-drawer .drawer-label{font-size:12px;letter-spacing:.04em;color:var(--accent);margin:18px 4px 6px;}
  .mobile-drawer .drawer-sub a{font-size:15px;color:var(--text-2);padding:10px 4px;border-bottom:0;}
  .drawer-cta{margin-top:18px;}
  /* ---------- Hero ---------- */
  .hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
  .hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55;}
  .hero-mask{
    position:absolute;inset:0;
    background:linear-gradient(90deg,rgba(19,16,23,.97) 0%,rgba(19,16,23,.88) 40%,rgba(19,16,23,.42) 78%,rgba(19,16,23,.6) 100%);
  }
  .hero-mask::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:140px;
    background:linear-gradient(180deg,rgba(19,16,23,0),rgba(19,16,23,.95));
  }
  .hero-inner{position:relative;padding:104px 0 88px;display:grid;grid-template-columns:1.25fr .85fr;gap:48px;align-items:center;}
  .hero h1{font-size:44px;margin:14px 0 18px;}
  .hero h1 em{font-style:normal;color:var(--primary);}
  .hero-lead{font-size:17.5px;color:#CFC9D8;max-width:620px;margin-bottom:30px;}
  .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:38px;}
  .hero-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;max-width:760px;}
  .metric{
    background:rgba(28,25,34,.86);border:1px solid var(--line);border-radius:var(--r-card);
    padding:16px 16px 14px;
  }
  .metric-value{display:flex;align-items:baseline;gap:6px;color:var(--accent);font-size:28px;font-weight:700;line-height:1.2;}
  .metric-value small{font-size:13px;font-weight:500;color:var(--accent);}
  .metric-label{font-size:13px;color:var(--text-2);margin-top:6px;}
  .pulse{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--accent);position:relative;}
  .pulse::after{
    content:"";position:absolute;inset:-4px;border-radius:50%;
    border:1px solid var(--accent);opacity:.7;animation:pulseRing 2.4s var(--ease) infinite;
  }
  @keyframes pulseRing{0%{transform:scale(.7);opacity:.75;}70%{transform:scale(1.5);opacity:0;}100%{transform:scale(1.5);opacity:0;}}
  .hero-side{
    background:rgba(28,25,34,.9);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-dark);padding:22px;
  }
  .hero-side img{width:100%;height:170px;object-fit:cover;border-radius:var(--r-img);margin-bottom:18px;}
  .hero-side h2{font-size:18px;margin:0 0 8px;}
  .hero-side p{font-size:14px;color:var(--text-2);margin:0 0 16px;}
  .hero-side ul li{display:flex;justify-content:space-between;font-size:14px;color:var(--text-2);padding:10px 0;border-bottom:1px dashed rgba(46,42,56,.9);}
  .hero-side ul li:last-child{border-bottom:0;}
  .hero-side ul li strong{color:var(--text);font-weight:600;}
  /* ---------- 看板 ---------- */
  .board{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;}
  .board-item{
    position:relative;background:var(--panel);border:1px solid var(--line);
    border-radius:var(--r-card);padding:20px 18px 18px 22px;overflow:hidden;
    transition:border-color .18s var(--ease),transform .18s var(--ease);
  }
  .board-item::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--primary);border-radius:0 3px 3px 0;}
  .board-item:hover{border-color:rgba(47,214,195,.45);transform:translateY(-2px);}
  .board-value{font-size:32px;font-weight:700;color:var(--text);line-height:1.2;}
  .board-value span{font-size:15px;font-weight:500;color:var(--text-2);margin-left:4px;}
  .board-name{font-size:14px;color:var(--text-2);margin-top:8px;}
  .board-trend{font-size:12.5px;color:var(--accent);margin-top:10px;}
  /* ---------- Bento ---------- */
  .bento{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
  .bento-card{
    position:relative;background:var(--panel);border:1px solid var(--line);
    border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column;
    transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
  }
  .bento-card:hover{transform:translateY(-2px);border-color:rgba(47,214,195,.5);box-shadow:var(--shadow-dark);}
  .bento-card:hover .bento-cover img{transform:scale(1.03);}
  .bento-cover{overflow:hidden;}
  .bento-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
  .bento-a{grid-column:span 2;}
  .bento-a .bento-cover img{height:280px;}
  .bento-b .bento-cover img{height:280px;}
  .bento-c .bento-cover img{height:220px;}
  .bento-d{grid-column:span 2;}
  .bento-d .bento-cover img{height:220px;}
  .bento-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1;}
  .tag{
    display:inline-flex;align-items:center;font-size:12px;font-weight:500;letter-spacing:.04em;
    color:var(--accent);border:1px solid rgba(47,214,195,.35);border-radius:999px;
    padding:3px 10px;margin-bottom:12px;align-self:flex-start;
  }
  .tag-warm{color:var(--soft);border-color:rgba(255,217,199,.4);}
  .bento-body h3{margin:0 0 10px;font-size:20px;}
  .bento-body p{font-size:15px;color:var(--text-2);margin:0 0 18px;}
  .arrow{margin-top:auto;font-size:14px;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
  .bento-card:hover .arrow{gap:10px;}
  .arrow span{transition:transform .18s var(--ease);}
  /* ---------- 资讯列表 ---------- */
  .news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
  .news-card{
    background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
    overflow:hidden;display:flex;flex-direction:column;
    transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
  }
  .news-card:hover{transform:translateY(-2px);border-color:rgba(47,214,195,.45);box-shadow:var(--shadow-dark);}
  .news-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
  .news-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1;}
  .news-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px;}
  .news-meta time{font-size:13px;color:#7d7789;}
  .news-title{
    font-size:18px;font-weight:600;line-height:1.5;margin:0 0 8px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .news-desc{
    font-size:14px;color:var(--text-2);margin:0 0 18px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .empty-state{
    grid-column:1 / -1;text-align:center;padding:64px 24px;
    background:var(--panel);border:1px dashed var(--line);border-radius:var(--r-card);
  }
  .empty-state .empty-icon{
    width:52px;height:52px;border-radius:50%;border:1px solid var(--line);
    display:flex;align-items:center;justify-content:center;margin:0 auto 16px;
    color:var(--accent);font-size:20px;
  }
  .empty-state p{color:var(--text-2);font-size:15px;margin:0 0 18px;}
  /* ---------- 对比（浅底） ---------- */
  .section-paper{background:var(--paper);color:var(--text-dark);}
  .section-paper .section-sub{color:var(--text-dark-2);}
  .section-paper .eyebrow{color:#C24A14;border-color:rgba(194,74,20,.35);}
  .section-paper .eyebrow::before{background:#C24A14;}
  .compare{
    background:#fff;border:1px solid #E6E1DB;border-radius:var(--r-card);
    box-shadow:var(--shadow-paper);overflow:hidden;
  }
  .compare-head{display:grid;grid-template-columns:1fr 1fr;background:var(--panel);color:var(--text);}
  .compare-head .compare-col{padding:18px 24px;font-size:15px;font-weight:600;}
  .compare-head .compare-col.is-accent{color:var(--accent);}
  .compare-row{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);}
  .compare-row .compare-col{
    min-height:56px;display:flex;align-items:center;padding:12px 24px;
    font-size:15px;color:var(--text-dark-2);border-right:1px solid var(--line);
  }
  .compare-row .compare-col:last-child{border-right:0;}
  .compare-row .compare-col.is-accent{
    color:var(--text-dark);font-weight:600;
    box-shadow:inset 0 0 0 1px rgba(47,214,195,.6);
    background:rgba(47,214,195,.06);
  }
  /* ---------- FAQ ---------- */
  .faq-list{max-width:920px;}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
    padding:22px 0;font-size:17px;font-weight:600;color:var(--text);
    transition:color .18s var(--ease);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::after{
    content:"+";font-size:22px;font-weight:400;color:var(--accent);flex-shrink:0;
    transition:transform .18s var(--ease);
  }
  .faq-item summary:hover{color:var(--accent);}
  .faq-item[open] summary::after{transform:rotate(45deg);}
  .faq-answer{padding:0 0 22px;color:var(--text-2);font-size:15.5px;max-width:820px;}
  .faq-answer p{margin:0;}
  /* ---------- 表单 ---------- */
  .lead-wrap{
    display:grid;grid-template-columns:1fr 1.05fr;gap:48px;
    background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
    padding:44px;box-shadow:var(--shadow-dark);
  }
  .lead-wrap h2{margin-top:0;}
  .lead-points li{display:flex;gap:12px;font-size:15px;color:var(--text-2);padding:9px 0;}
  .lead-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);margin-top:12px;flex-shrink:0;}
  .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
  .form-field{display:flex;flex-direction:column;gap:8px;}
  .form-field.full{grid-column:span 2;}
  .form-field label{font-size:13px;color:var(--text-2);display:flex;align-items:center;gap:6px;}
  .req{width:6px;height:6px;border-radius:50%;background:var(--primary);display:inline-block;}
  .form-field input,.form-field select,.form-field textarea{
    width:100%;min-height:48px;background:var(--panel-2);border:1px solid var(--line);
    border-radius:var(--r-field);padding:12px 14px;font-size:15px;color:var(--text);
    transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
  }
  .form-field textarea{min-height:112px;resize:vertical;line-height:1.8;}
  .form-field input::placeholder,.form-field textarea::placeholder{color:#6f6a7c;}
  .form-field input:focus,.form-field select:focus,.form-field textarea:focus{
    outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(255,106,43,.15);
  }
  .form-actions{grid-column:span 2;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}
  .form-note{font-size:13px;color:#7d7789;margin:0;}
  /* ---------- CTA 条 ---------- */
  .cta-band{
    background:linear-gradient(100deg,rgba(255,106,43,.16),rgba(47,214,195,.1));
    border:1px solid var(--line);border-radius:var(--r-card);
    padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  }
  .cta-band h2{margin:0 0 8px;font-size:25px;}
  .cta-band p{margin:0;color:var(--text-2);font-size:15px;}
  /* ---------- 页脚 ---------- */
  .site-footer{border-top:1px solid var(--line);background:#100E14;padding:64px 0 28px;margin-top:0;}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
  .footer-grid h3{font-size:14px;font-weight:600;color:var(--text);margin:0 0 16px;letter-spacing:.02em;}
  .footer-grid p,.footer-grid li{font-size:13px;color:var(--text-2);line-height:1.9;}
  .footer-grid ul li{margin-bottom:8px;}
  .footer-grid a{transition:color .18s var(--ease);}
  .footer-grid a:hover{color:var(--primary);}
  .footer-bottom{
    margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:#7d7789;
  }
  /* ---------- 响应式 ---------- */
  @media (max-width:1280px){
    .mega-panel{width:720px;}
  }
  @media (max-width:1024px){
    .nav-links,.mega-wrap,.nav-cta{display:none;}
    .hamburger{display:flex;}
    .hero-inner{grid-template-columns:1fr;padding:76px 0 68px;}
    .hero h1{font-size:34px;}
    .board{grid-template-columns:repeat(3,1fr);}
    .bento{grid-template-columns:repeat(2,1fr);}
    .bento-a,.bento-b,.bento-c,.bento-d{grid-column:span 2;}
    .bento-a .bento-cover img,.bento-b .bento-cover img{height:240px;}
    .news-grid{grid-template-columns:repeat(2,1fr);}
    .lead-wrap{grid-template-columns:1fr;padding:32px;}
    .footer-grid{grid-template-columns:1fr 1fr;}
  }
  @media (max-width:768px){
    body{font-size:16px;}
    .container{padding:0 16px;}
    .section{padding:64px 0;}
    .section-tight{padding:56px 0;}
    h2{font-size:24px;margin-top:34px;}
    .hero-inner{padding:52px 0 56px;}
    .hero h1{font-size:29px;}
    .hero-lead{font-size:16px;}
    .hero-metrics{grid-template-columns:repeat(2,1fr);}
    .board{grid-template-columns:repeat(2,1fr);}
    .news-grid{grid-template-columns:1fr;}
    .compare-head,.compare-row{grid-template-columns:1fr;}
    .compare-head .compare-col.is-accent{display:none;}
    .compare-row .compare-col{border-right:0;min-height:0;padding:14px 18px;}
    .compare-row .compare-col::before{
      content:"传统下载方式";display:block;font-size:12px;color:#8B8595;letter-spacing:.04em;margin-bottom:4px;
    }
    .compare-row .compare-col.is-accent::before{content:"九游在线网页版官网";color:#177a6f;}
    .form-grid{grid-template-columns:1fr;}
    .form-field.full,.form-actions{grid-column:span 1;}
    .cta-band{padding:28px 24px;}
    .footer-grid{grid-template-columns:1fr;}
  }
  @media (max-width:520px){
    .hero h1{font-size:26px;}
    .board{grid-template-columns:1fr;}
    .bento-a .bento-cover img,.bento-b .bento-cover img,.bento-c .bento-cover img,.bento-d .bento-cover img{height:190px;}
    .hero-actions .btn{width:100%;}
  }
  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;}
  }

/* roulang page: article */
:root{
    --primary:#FF6A2B;
    --primary-hover:#FF7F47;
    --primary-active:#E45818;
    --accent:#2FD6C3;
    --peach:#FFD9C7;
    --ink:#131017;
    --panel:#1C1922;
    --panel-2:#171420;
    --line:#2E2A38;
    --paper:#F6F4F1;
    --text:#F4F1F6;
    --text-2:#A9A3B3;
    --light-text:#1B1720;
    --light-text-2:#5B5566;
    --danger:#E5484D;
    --success:#2FD6C3;
    --warn:#F2B21A;
    --radius-card:14px;
    --radius-btn:10px;
    --radius-input:10px;
    --radius-pic:12px;
    --shadow-dark:0 12px 32px rgba(0,0,0,.35);
    --shadow-light:0 8px 24px rgba(19,16,23,.08);
    --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(--ink);
    color:var(--text);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16.5px;
    line-height:1.9;
    letter-spacing:.01em;
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;height:auto;border-radius:var(--radius-pic)}
  a{color:inherit;text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease)}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700}
  p{margin:0 0 20px}
  button,input,textarea,select{font:inherit;color:inherit}
  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
  .num{font-variant-numeric:tabular-nums}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

  /* ===== 顶部导航 ===== */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(19,16,23,.94);
    border-bottom:1px solid var(--line);
  }
  .nav-bar{
    display:flex;align-items:center;gap:18px;
    min-height:70px;
  }
  .nav-toggle{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
  .brand-mark{
    width:34px;height:34px;border-radius:9px;
    background:linear-gradient(140deg,var(--primary),#B33F12);
    color:#fff;font-weight:700;font-size:18px;
    display:flex;align-items:center;justify-content:center;
    box-shadow:0 6px 16px rgba(255,106,43,.28);
  }
  .brand-text{font-size:18px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
  .brand-suffix{
    font-size:12px;font-weight:500;color:var(--primary);
    border:1px solid rgba(255,106,43,.5);border-radius:999px;
    padding:1px 7px;margin-left:6px;vertical-align:2px;
  }
  .nav-links{display:flex;align-items:center;gap:2px;margin-left:8px}
  .nav-link{
    position:relative;display:inline-flex;align-items:center;
    height:44px;padding:0 12px;font-size:15px;color:var(--text-2);
    border-radius:8px;
  }
  .nav-link::after{
    content:"";position:absolute;left:12px;right:12px;bottom:6px;height:2px;
    background:var(--primary);transform:scaleX(0);transform-origin:left;
    transition:transform .18s var(--ease);
  }
  .nav-link:hover,.nav-link:focus-visible{color:var(--text)}
  .nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1)}
  .nav-link.is-active{color:var(--primary)}
  .nav-link.is-active::after{transform:scaleX(1)}
  .nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}

  .mega-wrap{position:relative}
  .mega-trigger{
    height:44px;padding:0 14px;border-radius:999px;cursor:pointer;
    background:transparent;border:1px solid var(--line);color:var(--text-2);
    font-size:14px;transition:all .18s var(--ease);
  }
  .mega-trigger:hover,.mega-wrap:focus-within .mega-trigger{color:var(--text);border-color:rgba(47,214,195,.55)}
  .mega-panel{
    position:absolute;top:calc(100% + 12px);right:0;width:800px;
    display:grid;grid-template-columns:1fr 1fr 240px;gap:26px;
    background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:24px;box-shadow:var(--shadow-dark);
    opacity:0;visibility:hidden;transform:translateY(6px);
    transition:opacity .15s var(--ease),transform .15s var(--ease),visibility .15s;
  }
  .mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
  .mega-title{font-size:12px;letter-spacing:.04em;color:var(--accent);font-weight:500;margin:0 0 12px;text-transform:uppercase}
  .mega-list li{margin-bottom:6px}
  .mega-list a{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    font-size:14.5px;color:var(--text-2);padding:7px 10px;border-radius:8px;
  }
  .mega-list a:hover{color:var(--text);background:rgba(255,255,255,.04)}
  .mega-time{font-size:12px;color:#6F687C}
  .mega-card{
    background:var(--panel-2);border:1px solid var(--line);border-radius:12px;
    padding:14px;display:flex;flex-direction:column;gap:10px;
  }
  .mega-card img{aspect-ratio:16/10;object-fit:cover;width:100%}
  .mega-card p{font-size:13px;line-height:1.7;color:var(--text-2);margin:0}

  .nav-burger{
    display:none;width:44px;height:44px;border-radius:10px;
    border:1px solid var(--line);align-items:center;justify-content:center;
    flex-direction:column;gap:4px;cursor:pointer;
  }
  .nav-burger span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px}

  /* ===== 按钮 ===== */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:46px;padding:0 22px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
    transition:transform .18s var(--ease),background-color .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  }
  .btn-sm{min-height:40px;padding:0 16px;font-size:14px}
  .btn-primary{background:var(--primary);color:#fff;box-shadow:0 2px 8px rgba(255,106,43,.25)}
  .btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 6px 18px rgba(255,106,43,.35)}
  .btn-primary:active{background:var(--primary-active);transform:translateY(0)}
  .btn-ghost{background:transparent;border-color:rgba(47,214,195,.5);color:var(--accent)}
  .btn-ghost:hover{background:rgba(47,214,195,.08);transform:translateY(-1px)}
  .btn-ghost:active{transform:translateY(0)}
  .nav-cta{white-space:nowrap}

  /* ===== 文章头 ===== */
  .article-banner{
    position:relative;
    background-image:linear-gradient(90deg,rgba(19,16,23,.96) 0%,rgba(19,16,23,.82) 55%,rgba(19,16,23,.62) 100%),url('/assets/images/backpic/back-1.webp');
    background-size:cover;background-position:center;
    border-bottom:1px solid var(--line);
    padding:34px 0 46px;
  }
  .crumbs{font-size:13px;color:var(--text-2)}
  .crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
  .crumbs li{display:flex;align-items:center;gap:8px}
  .crumbs li:not(:last-child)::after{content:"/";color:#5C5568}
  .crumbs a:hover{color:var(--primary)}
  .crumbs li[aria-current] span,.crumbs li[aria-current]{color:var(--text-2);display:inline-block;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .article-title{
    font-size:38px;line-height:1.28;margin:20px 0 16px;max-width:900px;
  }
  .article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--text-2)}
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    font-size:12px;font-weight:500;letter-spacing:.04em;
    padding:4px 12px;border-radius:999px;
    border:1px solid rgba(47,214,195,.45);color:var(--accent);
  }
  .badge-dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}
  .meta-sep{width:1px;height:12px;background:var(--line)}

  /* ===== 正文 ===== */
  .article-wrap{padding:56px 0 88px}
  .article-sheet{max-width:1100px;margin:0 auto}
  .article-body{
    max-width:820px;margin:0 auto;
    font-size:17px;line-height:1.9;
  }
  .article-body h2{
    font-size:28px;margin:40px 0 16px;padding-top:6px;
  }
  .article-body h3{font-size:19px;font-weight:600;margin:28px 0 10px}
  .article-body h4{font-size:17px;font-weight:600;margin:22px 0 8px;color:var(--text-2)}
  .article-body p{margin:0 0 20px;color:#DDD8E4}
  .article-body a{color:var(--accent);border-bottom:1px solid rgba(47,214,195,.35)}
  .article-body a:hover{color:var(--primary);border-color:var(--primary)}
  .article-body strong{color:#fff;font-weight:600}
  .article-body ul,.article-body ol{margin:0 0 20px;padding-left:1.5em}
  .article-body ul{list-style:disc}
  .article-body ol{list-style:decimal}
  .article-body li{margin-bottom:10px;color:#DDD8E4}
  .article-body li::marker{color:var(--primary)}
  .article-body blockquote{
    margin:24px 0;padding:6px 0 6px 18px;
    border-left:3px solid var(--primary);
    color:var(--text-2);font-style:normal;
  }
  .article-body img{margin:24px auto;border-radius:var(--radius-pic)}
  .article-body figure{margin:24px 0}
  .article-body figcaption{font-size:13px;color:var(--text-2);text-align:center;margin-top:10px}
  .article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
  .article-body th{background:var(--panel);color:var(--text);font-weight:600;text-align:left}
  .article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px}
  .article-body tr+tr td{border-top:1px solid var(--line)}
  .article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}
  .article-foot{
    max-width:820px;margin:44px auto 0;padding-top:26px;
    border-top:1px solid var(--line);
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  }
  .article-foot p{margin:0;font-size:13px;color:var(--text-2)}
  .empty-state{
    text-align:center;padding:64px 24px;
    border:1px dashed var(--line);border-radius:var(--radius-card);
    background:var(--panel);
  }
  .empty-state .empty-icon{
    width:52px;height:52px;margin:0 auto 18px;border-radius:50%;
    background:rgba(255,106,43,.12);border:1px solid rgba(255,106,43,.4);
    display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:22px;
  }
  .empty-state h3{font-size:18px;margin-bottom:10px}
  .empty-state p{font-size:14px;color:var(--text-2);margin-bottom:22px}

  /* ===== 相关推荐 ===== */
  .related{padding:0 0 96px}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:28px}
  .section-head h2{font-size:26px}
  .section-head p{margin:8px 0 0;font-size:14px;color:var(--text-2)}
  .card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
  .post-card{
    display:flex;flex-direction:column;
    background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);
    overflow:hidden;box-shadow:var(--shadow-dark);
    transition:transform .2s var(--ease),border-color .2s var(--ease);
  }
  .post-card:hover{transform:translateY(-2px);border-color:rgba(47,214,195,.55)}
  .post-cover{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
  .post-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
  .post-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .post-body p{font-size:14px;color:var(--text-2);line-height:1.75;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-2)}
  .post-foot .go{color:var(--primary);font-weight:600}

  /* ===== 页脚 ===== */
  .site-footer{border-top:1px solid var(--line);background:#100D14;padding:56px 0 26px}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
  .footer-grid h3{font-size:15px;font-weight:600;margin-bottom:14px}
  .footer-grid p{font-size:13px;line-height:1.85;color:var(--text-2);margin:0;max-width:340px}
  .footer-grid ul li{margin-bottom:9px;font-size:13px;color:var(--text-2)}
  .footer-grid ul a:hover{color:var(--primary)}
  .footer-bottom{
    margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
    display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
    font-size:13px;color:#7C7589;
  }

  @media (max-width:1023px){
    .nav-burger{display:flex}
    .nav-links{
      position:fixed;top:70px;right:0;height:calc(100vh - 70px);
      width:min(330px,86vw);
      flex-direction:column;align-items:stretch;gap:4px;
      background:var(--panel);border-left:1px solid var(--line);
      padding:20px 18px;margin-left:0;
      transform:translateX(102%);
      transition:transform .22s var(--ease);
      overflow-y:auto;
    }
    .nav-toggle:checked ~ .nav-links{transform:translateX(0)}
    .nav-link{height:48px;font-size:17px;color:var(--text);padding:0 6px}
    .nav-link::after{left:6px;right:auto;width:34px;bottom:8px}
    .mega-panel{
      width:min(360px,92vw);grid-template-columns:1fr;gap:18px;
      padding:18px;max-height:70vh;overflow-y:auto;
    }
    .footer-grid{grid-template-columns:1fr 1fr}
    .article-title{font-size:30px}
  }
  @media (max-width:767px){
    .container{padding:0 16px}
    .article-body{font-size:16px}
    .article-body h2{font-size:23px}
    .article-title{font-size:26px}
    .article-wrap{padding:40px 0 64px}
    .related{padding-bottom:72px}
    .card-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr;gap:26px}
    .section-head{flex-direction:column;align-items:flex-start}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  }

/* roulang page: category1 */
:root {
    --primary: #FF6A2B;
    --primary-hover: #FF7F47;
    --primary-active: #E45818;
    --accent: #2FD6C3;
    --ink: #131017;
    --panel: #1C1922;
    --line: #2E2A38;
    --paper: #F6F4F1;
    --text: #F4F1F6;
    --text-2: #A9A3B3;
    --dark-text: #1B1720;
    --dark-text-2: #5B5566;
    --danger: #E5484D;
    --success: #2FD6C3;
    --warn: #F2B21A;
    --radius-card: 14px;
    --radius-btn: 10px;
    --radius-img: 12px;
    --shadow-dark: 0 12px 32px rgba(0, 0, 0, .35);
    --shadow-light: 0 8px 24px rgba(19, 16, 23, .08);
    --ease: cubic-bezier(.2, .7, .3, 1);
  }

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

  html { scroll-behavior: smooth; }

  body {
    margin: 0;
    background: var(--ink);
    color: var(--text);
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    font-size: 16px;
    line-height: 1.9;
    letter-spacing: .01em;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }

  img { max-width: 100%; display: block; border-radius: var(--radius-img); }
  a { color: inherit; text-decoration: none; }
  button, input, textarea { font: inherit; color: inherit; }
  ul, ol { margin: 0; padding: 0; list-style: none; }
  h1, h2, h3, h4 { margin: 0; line-height: 1.28; font-weight: 700; }
  p { margin: 0 0 18px; }
  p:last-child { margin-bottom: 0; }

  .container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  .num { font-variant-numeric: tabular-nums; }

  /* ---------- 按钮 ---------- */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 48px;
    padding: 0 24px;
    border-radius: var(--radius-btn);
    border: 1px solid transparent;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: .02em;
    cursor: pointer;
    transition: background-color .18s var(--ease), color .18s var(--ease),
                border-color .18s var(--ease), transform .18s var(--ease),
                box-shadow .18s var(--ease);
    white-space: nowrap;
  }
  .btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 2px 8px rgba(255, 106, 43, .25);
  }
  .btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 8px 22px rgba(255, 106, 43, .35);
  }
  .btn-primary:active {
    background: var(--primary-active);
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(255, 106, 43, .25);
  }
  .btn-ghost {
    background: transparent;
    border-color: rgba(47, 214, 195, .55);
    color: var(--accent);
  }
  .btn-ghost:hover {
    background: rgba(47, 214, 195, .08);
    border-color: var(--accent);
    transform: translateY(-1px);
  }
  .btn-ghost:active { transform: translateY(0); background: rgba(47, 214, 195, .14); }
  .btn-sm { height: 40px; padding: 0 16px; font-size: 14px; }
  .btn:focus-visible,
  a:focus-visible,
  summary:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 6px;
  }

  /* ---------- 徽章 ---------- */
  .badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 11px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: .04em;
    line-height: 1.6;
    color: var(--accent);
    border: 1px solid rgba(47, 214, 195, .38);
    background: rgba(47, 214, 195, .08);
  }
  .badge-primary {
    color: #FFD9C7;
    border-color: rgba(255, 106, 43, .42);
    background: rgba(255, 106, 43, .12);
  }
  .pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 0 rgba(47, 214, 195, .6);
    animation: pulse 2.4s var(--ease) infinite;
    flex: none;
  }
  @keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(47, 214, 195, .55); }
    70% { box-shadow: 0 0 0 10px rgba(47, 214, 195, 0); }
    100% { box-shadow: 0 0 0 0 rgba(47, 214, 195, 0); }
  }

  /* ---------- 导航 ---------- */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 80;
    background: rgba(19, 16, 23, .96);
    border-bottom: 1px solid var(--line);
  }
  .nav-bar {
    display: flex;
    align-items: center;
    gap: 28px;
    min-height: 72px;
  }
  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex: none;
  }
  .brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(140deg, var(--primary), #FF9A5C);
    color: #22150E;
    font-size: 18px;
    font-weight: 700;
  }
  .brand-text {
    font-size: 17px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: .02em;
  }
  .brand-suffix {
    margin-left: 6px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-2);
    letter-spacing: .04em;
  }
  .nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
  }
  .nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    height: 44px;
    padding: 0 12px;
    font-size: 15px;
    color: var(--text-2);
    transition: color .18s var(--ease);
  }
  .nav-link::after {
    content: "";
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: 6px;
    height: 2px;
    background: var(--primary);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform .18s var(--ease);
  }
  .nav-link:hover,
  .nav-link:focus-visible { color: var(--text); }
  .nav-link:hover::after,
  .nav-link:focus-visible::after { transform: scaleX(1); }
  .nav-link.is-active { color: var(--primary); }
  .nav-link.is-active::after { transform: scaleX(1); }

  .nav-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 12px;
  }

  /* 下拉面板 */
  .mega-wrap { position: relative; }
  .mega-trigger {
    display: inline-flex;
    align-items: center;
    height: 40px;
    padding: 0 16px;
    border-radius: var(--radius-btn);
    border: 1px solid var(--line);
    background: transparent;
    color: var(--text-2);
    font-size: 14px;
    cursor: pointer;
    transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
  }
  .mega-wrap:hover .mega-trigger,
  .mega-wrap:focus-within .mega-trigger {
    color: var(--text);
    border-color: rgba(255, 106, 43, .55);
    background: rgba(255, 106, 43, .06);
  }
  .mega-panel {
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    width: 760px;
    display: grid;
    grid-template-columns: 1fr 1fr 250px;
    gap: 24px;
    padding: 24px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-dark);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: opacity .15s var(--ease), transform .15s var(--ease), visibility .15s;
  }
  .mega-wrap:hover .mega-panel,
  .mega-wrap:focus-within .mega-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .mega-title {
    margin: 0 0 12px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .04em;
    color: var(--text);
  }
  .mega-list li + li { margin-top: 2px; }
  .mega-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 8px 10px;
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-2);
    transition: background-color .16s var(--ease), color .16s var(--ease);
  }
  .mega-list a:hover {
    background: rgba(255, 255, 255, .04);
    color: var(--primary);
  }
  .mega-time { font-size: 12px; color: #6E6878; }
  .mega-card {
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    background: #171420;
  }
  .mega-card img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; margin-bottom: 12px; }
  .mega-card p { margin: 0 0 12px; font-size: 13px; line-height: 1.7; color: var(--text-2); }

  .nav-toggle { display: none; }
  .nav-burger {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    border: 1px solid var(--line);
    border-radius: var(--radius-btn);
    cursor: pointer;
  }
  .nav-burger span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform .2s var(--ease), opacity .2s var(--ease);
  }

  /* ---------- 分类页 Hero ---------- */
  .page-hero {
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--line);
  }
  .page-hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center right;
    opacity: .6;
  }
  .page-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(19, 16, 23, .97) 0%, rgba(19, 16, 23, .9) 45%, rgba(19, 16, 23, .42) 100%);
  }
  .page-hero-inner {
    position: relative;
    z-index: 2;
    max-width: 760px;
    padding: 44px 0 72px;
  }
  .breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-2);
    margin-bottom: 22px;
  }
  .breadcrumb li { display: inline-flex; align-items: center; gap: 8px; }
  .breadcrumb li + li::before {
    content: "/";
    color: #4A4457;
  }
  .breadcrumb a { transition: color .16s var(--ease); }
  .breadcrumb a:hover { color: var(--primary); }
  .page-hero h1 {
    margin: 16px 0 16px;
    font-size: 42px;
    letter-spacing: .01em;
  }
  .page-hero-sub {
    max-width: 620px;
    font-size: 17px;
    color: #C9C4D2;
    margin-bottom: 28px;
  }
  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
  }

  /* ---------- 通用板块 ---------- */
  .section { padding: 92px 0; }
  .section-tight { padding: 64px 0; }
  .section-head { max-width: 760px; margin-bottom: 36px; }
  .section-head h2 {
    font-size: 28px;
    margin-bottom: 14px;
  }
  .section-head p {
    color: var(--text-2);
    font-size: 16px;
    margin: 0;
  }
  .eyebrow {
    display: inline-block;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: .16em;
    color: var(--primary);
    margin-bottom: 10px;
    text-transform: uppercase;
  }
  .divider { height: 1px; background: var(--line); border: 0; margin: 0; }

  /* ---------- 指标条 ---------- */
  .metric-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
  }
  .metric-card {
    position: relative;
    padding: 22px 22px 22px 26px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-dark);
  }
  .metric-card::before {
    content: "";
    position: absolute;
    left: 12px;
    top: 22px;
    bottom: 22px;
    width: 3px;
    border-radius: 3px;
    background: var(--primary);
  }
  .metric-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--accent);
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
  }
  .metric-value small { font-size: 15px; font-weight: 600; margin-left: 2px; }
  .metric-label {
    margin-top: 6px;
    font-size: 13px;
    color: var(--text-2);
    display: flex;
    align-items: center;
    gap: 6px;
  }

  /* ---------- 编号行 ---------- */
  .step-list { border-bottom: 1px solid var(--line); }
  .step-row {
    display: grid;
    grid-template-columns: 84px minmax(0, 1fr) 200px;
    gap: 28px;
    align-items: center;
    padding: 24px 12px;
    border-top: 1px solid var(--line);
    transition: background-color .18s var(--ease), padding-left .18s var(--ease);
  }
  .step-row:hover {
    background: rgba(255, 255, 255, .025);
    padding-left: 18px;
  }
  .step-num {
    font-size: 26px;
    font-weight: 700;
    color: var(--primary);
    font-variant-numeric: tabular-nums;
    line-height: 1;
  }
  .step-body h3 {
    font-size: 19px;
    font-weight: 600;
    margin-bottom: 6px;
  }
  .step-body p { margin: 0; font-size: 15px; color: var(--text-2); }
  .step-side {
    justify-self: end;
    font-size: 13px;
    color: var(--accent);
    border: 1px solid rgba(47, 214, 195, .32);
    border-radius: 999px;
    padding: 5px 12px;
    white-space: nowrap;
  }

  /* ---------- 标签 + 横向卡片 ---------- */
  .tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 26px;
  }
  .tag {
    display: inline-flex;
    align-items: center;
    height: 36px;
    padding: 0 16px;
    border-radius: 999px;
    border: 1px solid var(--line);
    font-size: 14px;
    color: var(--text-2);
    background: var(--panel);
    transition: color .16s var(--ease), border-color .16s var(--ease), background-color .16s var(--ease);
  }
  .tag:hover {
    color: var(--text);
    border-color: rgba(47, 214, 195, .5);
  }
  .tag.is-on {
    color: #22150E;
    background: var(--accent);
    border-color: var(--accent);
    font-weight: 600;
  }
  .slide-row {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: 292px;
    gap: 18px;
    overflow-x: auto;
    padding-bottom: 14px;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
  }
  .slide-row::-webkit-scrollbar { height: 6px; }
  .slide-row::-webkit-scrollbar-track { background: #1A1721; border-radius: 6px; }
  .slide-row::-webkit-scrollbar-thumb { background: #3A3546; border-radius: 6px; }
  .entry-card {
    scroll-snap-align: start;
    display: flex;
    flex-direction: column;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    overflow: hidden;
    transition: transform .18s var(--ease), border-color .18s var(--ease), box-shadow .18s var(--ease);
  }
  .entry-card:hover {
    transform: translateY(-2px);
    border-color: rgba(47, 214, 195, .5);
    box-shadow: var(--shadow-dark);
  }
  .entry-thumb {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 9;
  }
  .entry-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0;
    transition: transform .22s var(--ease);
  }
  .entry-card:hover .entry-thumb img { transform: scale(1.03); }
  .entry-thumb .badge {
    position: absolute;
    left: 12px;
    top: 12px;
    background: rgba(19, 16, 23, .82);
    backdrop-filter: none;
  }
  .entry-body { padding: 18px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
  .entry-body h3 { font-size: 17px; font-weight: 600; }
  .entry-body p { margin: 0; font-size: 14px; color: var(--text-2); }
  .entry-link {
    margin-top: auto;
    padding-top: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap .18s var(--ease), color .18s var(--ease);
  }
  .entry-card:hover .entry-link { gap: 10px; color: var(--primary-hover); }

  /* ---------- 浅色提示条 ---------- */
  .note-band {
    background: var(--paper);
    color: var(--dark-text);
    border-radius: var(--radius-card);
    padding: 30px 32px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 24px;
    align-items: center;
    box-shadow: var(--shadow-light);
  }
  .note-band h3 { font-size: 19px; color: var(--dark-text); margin-bottom: 8px; }
  .note-band p { margin: 0; font-size: 15px; color: var(--dark-text-2); line-height: 1.8; }
  .note-band .btn-ghost { color: #1F7C71; border-color: rgba(31, 124, 113, .5); }
  .note-band .btn-ghost:hover { background: rgba(31, 124, 113, .08); }

  /* ---------- FAQ ---------- */
  .faq-list { border-bottom: 1px solid var(--line); }
  .faq-item { border-top: 1px solid var(--line); }
  .faq-item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 22px 4px;
    font-size: 17px;
    font-weight: 600;
    transition: color .16s var(--ease);
  }
  .faq-item summary::-webkit-details-marker { display: none; }
  .faq-item summary:hover { color: var(--primary); }
  .faq-icon {
    flex: none;
    width: 26px;
    height: 26px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    line-height: 1;
    color: var(--accent);
    border: 1px solid rgba(47, 214, 195, .4);
    border-radius: 50%;
    transition: transform .18s var(--ease), background-color .18s var(--ease);
  }
  .faq-item[open] .faq-icon {
    transform: rotate(45deg);
    background: rgba(47, 214, 195, .12);
  }
  .faq-body {
    padding: 0 4px 24px;
    max-width: 860px;
    font-size: 15.5px;
    color: var(--text-2);
  }

  /* ---------- CTA 条 ---------- */
  .cta-band {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    background: linear-gradient(120deg, #241A1A 0%, var(--panel) 55%, #171A22 100%);
    padding: 44px 44px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 28px;
    align-items: center;
    box-shadow: var(--shadow-dark);
  }
  .cta-band::before {
    content: "";
    position: absolute;
    right: -60px;
    top: -70px;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 106, 43, .28), transparent 68%);
    pointer-events: none;
  }
  .cta-band h2 { font-size: 26px; margin-bottom: 12px; position: relative; }
  .cta-band p { margin: 0; color: var(--text-2); font-size: 15.5px; max-width: 640px; position: relative; }
  .cta-band .cta-actions { position: relative; display: flex; gap: 12px; flex-wrap: wrap; }

  /* ---------- 页脚 ---------- */
  .site-footer {
    margin-top: 8px;
    border-top: 1px solid var(--line);
    background: #100E15;
    padding: 64px 0 28px;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 36px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--line);
  }
  .footer-grid h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 14px;
  }
  .footer-grid p {
    font-size: 13px;
    color: var(--text-2);
    line-height: 1.9;
    margin: 0;
    max-width: 340px;
  }
  .footer-grid ul li {
    font-size: 13px;
    color: var(--text-2);
    line-height: 2;
  }
  .footer-grid ul a {
    font-size: 13px;
    color: var(--text-2);
    transition: color .16s var(--ease);
  }
  .footer-grid ul a:hover { color: var(--primary); }
  .footer-bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px;
    padding-top: 22px;
    font-size: 13px;
    color: #6E6878;
  }

  /* ---------- 响应式 ---------- */
  @media (max-width: 1023px) {
    .nav-toggle { display: none; }
    .nav-links {
      position: fixed;
      top: 72px;
      right: 0;
      bottom: 0;
      width: min(330px, 84vw);
      flex-direction: column;
      align-items: stretch;
      gap: 0;
      padding: 16px 20px 40px;
      background: var(--panel);
      border-left: 1px solid var(--line);
      box-shadow: -18px 0 40px rgba(0, 0, 0, .45);
      transform: translateX(103%);
      transition: transform .22s var(--ease);
      overflow-y: auto;
      z-index: 70;
    }
    .nav-toggle:checked ~ .nav-links { transform: translateX(0); }
    .nav-link {
      height: 54px;
      font-size: 17px;
      width: 100%;
      border-bottom: 1px solid var(--line);
      color: var(--text);
    }
    .nav-link::after { display: none; }
    .nav-link.is-active { color: var(--primary); }
    .mega-wrap,
    .nav-cta { display: none; }
    .nav-burger { display: inline-flex; }
    .page-hero h1 { font-size: 34px; }
    .metric-strip { grid-template-columns: repeat(2, 1fr); }
    .step-row { grid-template-columns: 58px minmax(0, 1fr); }
    .step-side { grid-column: 2; justify-self: start; }
    .cta-band { grid-template-columns: 1fr; padding: 32px; }
    .note-band { grid-template-columns: 1fr; padding: 26px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  }

  @media (max-width: 767px) {
    section.section { padding: 62px 0; }
    .section-head h2 { font-size: 23px; }
    .page-hero-inner { padding: 32px 0 56px; }
    .page-hero h1 { font-size: 28px; }
    .page-hero-sub { font-size: 16px; }
    .hero-actions .btn { flex: 1 1 auto; }
    .metric-value { font-size: 28px; }
    .slide-row { grid-auto-columns: 82%; }
  }

  @media (max-width: 520px) {
    .container { padding-left: 16px; padding-right: 16px; }
    .brand-text { font-size: 15px; }
    .brand-suffix { display: none; }
    .metric-strip { grid-template-columns: 1fr; }
    .step-row { gap: 16px; padding: 20px 4px; }
    .footer-grid { grid-template-columns: 1fr; }
    .cta-band { padding: 24px; }
    .cta-band .cta-actions .btn { width: 100%; }
  }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: .001ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: .001ms !important;
      scroll-behavior: auto !important;
    }
  }

/* roulang page: category2 */
:root{
  --primary:#FF6A2B;
  --primary-hover:#FF7F47;
  --primary-active:#E45818;
  --accent:#2FD6C3;
  --peach:#FFD9C7;
  --ink:#131017;
  --panel:#1C1922;
  --line:#2E2A38;
  --paper:#F6F4F1;
  --text:#F4F1F6;
  --muted:#A9A3B3;
  --error:#E5484D;
  --warn:#F2B21A;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --shadow-dark:0 12px 32px rgba(0,0,0,.35);
  --shadow-light:0 8px 24px rgba(19,16,23,.08);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
h1,h2,h3,h4{line-height:1.28;margin:0;font-weight:700}
h1{font-size:40px}
h2{font-size:28px;margin-top:40px;margin-bottom:16px}
h3{font-size:19px;margin-top:28px;margin-bottom:10px}
p{margin:0 0 20px;color:var(--muted)}
ul,ol{margin:0}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.lead{font-size:17px;color:var(--muted);max-width:820px}
.tag-label{display:inline-block;font-size:12px;font-weight:500;letter-spacing:.04em;color:var(--accent);border:1px solid rgba(47,214,195,.35);background:rgba(47,214,195,.08);border-radius:999px;padding:3px 10px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 2px 8px rgba(255,106,43,.25)}
.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 8px 20px rgba(255,106,43,.35)}
.btn-primary:active{background:var(--primary-active);transform:translateY(0);box-shadow:0 2px 8px rgba(255,106,43,.25)}
.btn-ghost{border-color:rgba(47,214,195,.5);color:var(--accent);background:transparent}
.btn-ghost:hover{background:rgba(47,214,195,.08);transform:translateY(-1px)}
.btn-outline{border-color:var(--line);color:var(--text);background:transparent}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(19,16,23,.95);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(6px);
}
.nav-bar{display:flex;align-items:center;gap:20px;height:72px}
.nav-toggle{display:none}
.nav-toggle-label{display:none}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),#ff9b6a);
  color:#fff;display:grid;place-items:center;font-weight:700;font-size:16px;
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.02em}
.brand-suffix{font-size:12px;font-weight:500;color:var(--accent);margin-left:4px}
.nav-links{display:flex;align-items:center;gap:2px;list-style:none;padding:0;flex:1}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 12px;
  color:var(--muted);font-size:15px;transition:color .18s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:6px;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .18s var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:var(--primary)}
.nav-link:hover::after,.nav-link:focus-visible::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--text)}
.nav-right{display:flex;align-items:center;gap:12px}
.mega-wrap{position:relative}
.mega-trigger{
  height:44px;padding:0 14px;background:transparent;border:1px solid var(--line);
  border-radius:var(--r-btn);color:var(--muted);font-size:14px;cursor:pointer;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.mega-trigger:hover,.mega-wrap:focus-within .mega-trigger{color:var(--primary);border-color:var(--primary)}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:780px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:0 18px 48px rgba(0,0,0,.5);padding:24px;
  display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .15s var(--ease),transform .15s var(--ease),visibility .15s;
}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-title{font-size:12px;letter-spacing:.06em;color:var(--accent);margin:0 0 12px}
.mega-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:4px}
.mega-list a{display:flex;justify-content:space-between;gap:10px;font-size:14px;color:var(--muted);padding:7px 8px;border-radius:8px;transition:background .16s var(--ease),color .16s var(--ease)}
.mega-list a:hover,.mega-list a:focus-visible{background:rgba(255,106,43,.1);color:var(--primary)}
.mega-time{font-size:12px;color:#6E6878;font-variant-numeric:tabular-nums}
.mega-card{background:#171420;border:1px solid var(--line);border-radius:12px;padding:14px}
.mega-card img{aspect-ratio:16/9;object-fit:cover;width:100%;margin-bottom:12px}
.mega-card p{font-size:13px;margin:0 0 12px;color:var(--muted)}

/* ---------- 分类页 Hero ---------- */
.cat-hero{
  position:relative;
  padding:56px 0 72px;
  background-image:
    linear-gradient(100deg,rgba(19,16,23,.97) 0%,rgba(19,16,23,.85) 45%,rgba(19,16,23,.55) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.breadcrumb{list-style:none;display:flex;align-items:center;gap:10px;padding:0;font-size:13px;color:var(--muted);margin-bottom:22px}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb li[aria-hidden]{color:#5B5566}
.cat-hero h1{max-width:820px;margin-bottom:20px}
.cat-hero .subtitle{font-size:17px;color:var(--muted);max-width:640px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:40px}
.metric{
  background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--primary);
  border-radius:12px;padding:16px 18px;box-shadow:var(--shadow-dark);
}
.metric b{display:block;font-size:30px;line-height:1.25;color:var(--accent);font-weight:700;font-variant-numeric:tabular-nums}
.metric span{font-size:13px;color:var(--muted)}
.pulse{
  display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--accent);
  margin-left:8px;vertical-align:middle;animation:pulse 2.4s var(--ease) infinite;
}
@keyframes pulse{
  0%{opacity:1;transform:scale(1)}
  50%{opacity:.35;transform:scale(.8)}
  100%{opacity:1;transform:scale(1)}
}

/* ---------- 两栏布局 ---------- */
.cat-layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:44px;align-items:start}
.cat-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:16px}
.side-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow-dark)}
.side-title{font-size:12px;letter-spacing:.06em;color:var(--accent);margin:0 0 12px}
.side-card ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:2px}
.side-card li a{display:block;font-size:14px;color:var(--muted);padding:8px 10px;border-radius:8px;border-left:2px solid transparent;transition:color .16s var(--ease),background .16s var(--ease),border-color .16s var(--ease)}
.side-card li a:hover,.side-card li a:focus-visible{color:var(--primary);background:rgba(255,106,43,.09);border-left-color:var(--primary)}
.side-card li a.is-current{color:var(--text);border-left-color:var(--accent)}
.side-note{font-size:13px;color:var(--muted);background:#171420;border:1px dashed var(--line);border-radius:12px;padding:16px}
.side-note strong{color:var(--accent);font-weight:600}

/* ---------- 卡片网格 ---------- */
.card-grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:28px}
.bcard{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-dark);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.bcard:hover{transform:translateY(-2px);border-color:var(--accent);box-shadow:0 18px 44px rgba(0,0,0,.45)}
.bcard-media{overflow:hidden;border-radius:0}
.bcard-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .25s var(--ease)}
.bcard:hover .bcard-media img{transform:scale(1.03)}
.bcard-body{padding:20px}
.bcard-body h3{margin:12px 0 8px;font-size:19px}
.bcard-body p{font-size:14px;margin:0 0 14px}
.bcard-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:#6E6878;border-top:1px solid var(--line);padding-top:14px}
.bcard-foot .arrow{color:var(--primary);transition:transform .18s var(--ease)}
.bcard:hover .bcard-foot .arrow{transform:translateX(4px)}

/* ---------- 时间线 ---------- */
.timeline-wrap{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);padding:32px;box-shadow:var(--shadow-dark)}
.timeline{list-style:none;padding:0;position:relative}
.timeline::before{content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--primary),rgba(47,214,195,.45))}
.timeline li{position:relative;padding:0 0 30px 46px}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{content:"";position:absolute;left:4px;top:9px;width:16px;height:16px;border-radius:50%;background:var(--ink);border:2px solid var(--primary)}
.timeline time{display:block;font-size:13px;color:var(--accent);letter-spacing:.04em;margin-bottom:4px;font-variant-numeric:tabular-nums}
.timeline h3{margin:0 0 6px;font-size:18px}
.timeline p{margin:0;font-size:14px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);margin-top:28px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 0;font-size:17px;font-weight:600;cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";color:var(--primary);font-size:22px;line-height:1;
  transition:transform .2s var(--ease);flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{color:var(--muted);font-size:15px;margin:0 0 20px;max-width:820px}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:linear-gradient(135deg,rgba(255,106,43,.16),rgba(47,214,195,.10));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:64px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{margin:0 0 10px;font-size:26px}
.cta-inner p{margin:0;max-width:640px}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);background:#100E14;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.site-footer h3{font-size:14px;font-weight:600;color:var(--text);margin:0 0 14px}
.site-footer p{font-size:13px;color:var(--muted);margin:0;line-height:1.9}
.site-footer ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:8px}
.site-footer li{font-size:13px;color:var(--muted);line-height:1.9}
.site-footer a{font-size:13px;color:var(--muted);transition:color .16s var(--ease)}
.site-footer a:hover,.site-footer a:focus-visible{color:var(--primary)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:#6E6878;line-height:1.9;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .mega-panel{width:700px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .cat-layout{grid-template-columns:1fr;gap:28px}
  .cat-side{position:static;flex-direction:row;flex-wrap:wrap}
  .side-card{flex:1 1 240px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  h1{font-size:32px}
  h2{font-size:24px}

  .nav-bar{height:64px;gap:12px}
  .nav-right{order:3}
  .nav-toggle-label{
    display:flex;flex-direction:column;justify-content:center;gap:5px;
    width:44px;height:44px;padding:11px;cursor:pointer;margin-left:auto;
  }
  .nav-toggle-label span{display:block;height:2px;background:var(--text);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
  .nav-toggle:checked ~ .nav-toggle-label span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle:checked ~ .nav-toggle-label span:nth-child(2){opacity:0}
  .nav-toggle:checked ~ .nav-toggle-label span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .nav-links{
    position:fixed;left:0;right:0;top:64px;bottom:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--panel);border-top:1px solid var(--line);
    padding:12px 20px 40px;overflow-y:auto;
    transform:translateX(105%);
    transition:transform .22s var(--ease);
    z-index:70;
  }
  .nav-toggle:checked ~ .nav-links{transform:translateX(0)}
  .nav-link{height:52px;width:100%;font-size:17px;color:var(--text);border-bottom:1px solid var(--line);padding:0}
  .nav-link::after{display:none}
  .mega-wrap{display:none}
  .nav-cta{display:none}
  .brand-text{font-size:16px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section,.section-tight{padding:56px 0}
  .cat-hero{padding:40px 0 56px}
  h1{font-size:28px}
  h2{font-size:22px;margin-top:28px}
  .card-grid-2{grid-template-columns:1fr}
  .timeline-wrap{padding:24px}
  .cta-band{padding:48px 0}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .hero-actions .btn{width:100%}
  .metric b{font-size:26px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
    --primary:#FF6A2B;
    --primary-hover:#FF7F47;
    --primary-active:#E45818;
    --accent:#2FD6C3;
    --peach:#FFD9C7;
    --ink:#131017;
    --panel:#1C1922;
    --line:#2E2A38;
    --paper:#F6F4F1;
    --text:#F4F1F6;
    --text-2:#A9A3B3;
    --text-dark:#1B1720;
    --text-dark-2:#5B5566;
    --err:#E5484D;
    --warn:#F2B21A;
    --r-card:14px;
    --r-btn:10px;
    --r-img:12px;
    --shadow-dark:0 12px 32px rgba(0,0,0,.35);
    --shadow-light:0 8px 24px rgba(19,16,23,.08);
    --ease:cubic-bezier(.2,.7,.3,1);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--ink);
    color:var(--text);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.9;
    letter-spacing:.01em;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border-style:none}
  a{color:inherit}
  button,input,textarea,select{font-family:inherit}
  h1{font-size:clamp(26px,3.4vw,42px);line-height:1.28;font-weight:700;letter-spacing:.01em;margin:0 0 18px}
  h2{font-size:clamp(23px,2.4vw,30px);line-height:1.28;font-weight:700;margin:40px 0 16px}
  h3{font-size:19px;line-height:1.4;font-weight:600;margin:28px 0 10px}
  p{margin:0 0 20px}
  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
  .section{padding:96px 0}
  .section-head{max-width:800px;margin-bottom:40px}
  .section-head p{color:var(--text-2);font-size:16px;margin-bottom:0}
  .eyebrow{font-size:12px;letter-spacing:.14em;font-weight:600;color:var(--accent);margin:0 0 12px;text-transform:uppercase}
  .num{font-variant-numeric:tabular-nums}

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(19,16,23,.94);
    border-bottom:1px solid var(--line);
  }
  .nav-bar{display:flex;align-items:center;gap:20px;height:68px}
  .brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);flex:none}
  .brand-mark{
    width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
    background:linear-gradient(140deg,#FF7F47,#E45818);
    color:#fff;font-weight:700;font-size:17px;letter-spacing:0;
  }
  .brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
  .brand-suffix{
    margin-left:6px;font-size:12px;font-weight:500;color:var(--accent);
    border:1px solid rgba(47,214,195,.4);border-radius:999px;padding:1px 7px;vertical-align:2px;
  }
  .nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0 auto 0 8px;padding:0}
  .nav-link{
    position:relative;display:inline-flex;align-items:center;height:44px;padding:0 12px;
    color:var(--text-2);font-size:15px;text-decoration:none;border-radius:8px;
    transition:color .18s var(--ease),background-color .18s var(--ease);
    white-space:nowrap;
  }
  .nav-link::after{
    content:"";position:absolute;left:12px;right:12px;bottom:7px;height:2px;border-radius:2px;
    background:var(--primary);transform:scaleX(0);transform-origin:left;
    transition:transform .18s var(--ease);
  }
  .nav-link:hover,.nav-link:focus-visible{color:var(--text)}
  .nav-link:hover::after,.nav-link:focus-visible::after,.nav-link.is-active::after{transform:scaleX(1)}
  .nav-link.is-active{color:var(--text)}
  .nav-right{display:flex;align-items:center;gap:10px;margin-left:auto;flex:none}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:46px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
    font-size:15px;font-weight:600;text-decoration:none;cursor:pointer;line-height:1;
    transition:transform .18s var(--ease),background-color .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
  }
  .btn-sm{min-height:44px;padding:0 16px;font-size:14px}
  .btn-primary{background:var(--primary);color:#fff;box-shadow:0 2px 8px rgba(255,106,43,.25)}
  .btn-primary:hover{background:var(--primary-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,106,43,.32)}
  .btn-primary:active{background:var(--primary-active);transform:translateY(0);box-shadow:0 2px 8px rgba(255,106,43,.28)}
  .btn-ghost{background:transparent;color:var(--accent);border-color:rgba(47,214,195,.5)}
  .btn-ghost:hover{background:rgba(47,214,195,.08);border-color:var(--accent);transform:translateY(-1px)}
  .btn-ghost:active{transform:translateY(0);background:rgba(47,214,195,.14)}
  .btn-line{background:transparent;color:var(--text);border-color:var(--line)}
  .btn-line:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px}

  /* mega menu */
  .mega-wrap{position:relative}
  .mega-trigger{
    display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:0 14px;
    background:transparent;border:1px solid var(--line);border-radius:var(--r-btn);
    color:var(--text-2);font-size:14px;cursor:pointer;
    transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
  }
  .mega-trigger:hover,.mega-wrap:focus-within .mega-trigger{color:var(--text);border-color:var(--primary);background:rgba(255,106,43,.08)}
  .mega-panel{
    position:absolute;right:0;top:calc(100% + 14px);width:820px;max-width:calc(100vw - 48px);
    display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:22px;padding:22px;
    background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-dark);
    opacity:0;visibility:hidden;transform:translateY(-6px);
    transition:opacity .16s var(--ease),transform .16s var(--ease),visibility .16s;
  }
  .mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
  .mega-title{font-size:13px;font-weight:600;color:var(--text);margin:0 0 12px;letter-spacing:.02em}
  .mega-list{list-style:none;margin:0;padding:0;display:grid;gap:4px}
  .mega-list a{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    min-height:38px;padding:0 10px;border-radius:8px;
    color:var(--text-2);font-size:14px;text-decoration:none;
    transition:color .18s var(--ease),background-color .18s var(--ease);
  }
  .mega-list a:hover{color:var(--primary);background:rgba(255,106,43,.08)}
  .mega-time{font-size:12px;color:#7b7488;font-variant-numeric:tabular-nums}
  .mega-card{
    background:#171420;border:1px solid var(--line);border-radius:12px;padding:14px;
    display:flex;flex-direction:column;gap:10px;
  }
  .mega-card img{width:100%;height:104px;object-fit:cover;border-radius:8px}
  .mega-card p{margin:0;font-size:13px;line-height:1.7;color:var(--text-2)}

  .nav-toggle{position:absolute;opacity:0;width:0;height:0;pointer-events:none}
  .nav-burger{
    display:none;width:44px;height:44px;align-items:center;justify-content:center;
    border:1px solid var(--line);border-radius:var(--r-btn);color:var(--text);cursor:pointer;
    transition:border-color .18s var(--ease),color .18s var(--ease);
  }
  .nav-burger:hover{border-color:var(--primary);color:var(--primary)}

  /* ---------- Hero ---------- */
  .hero{
    position:relative;overflow:hidden;
    background:var(--ink) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    border-bottom:1px solid var(--line);
  }
  .hero::before{
    content:"";position:absolute;inset:0;
    background:linear-gradient(100deg,rgba(19,16,23,.97) 0%,rgba(19,16,23,.88) 45%,rgba(19,16,23,.5) 100%);
  }
  .hero-inner{
    position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:56px;
    align-items:center;padding:76px 0 84px;
  }
  .crumb{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:0 0 20px;padding:0;font-size:13px;color:var(--text-2)}
  .crumb li{display:flex;align-items:center;gap:8px}
  .crumb li:not(:last-child)::after{content:"/";color:#5c5568}
  .crumb a{color:var(--text-2);text-decoration:none;transition:color .18s var(--ease)}
  .crumb a:hover{color:var(--primary)}
  .crumb [aria-current="page"]{color:var(--text)}
  .tag{
    display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;
    font-size:12px;font-weight:500;letter-spacing:.04em;
    color:var(--accent);border:1px solid rgba(47,214,195,.45);background:rgba(47,214,195,.08);
  }
  .hero-sub{color:var(--text-2);font-size:17px;max-width:560px;margin-bottom:0}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
  .hero-visual{
    position:relative;border-radius:var(--r-card);overflow:hidden;
    border:1px solid var(--line);box-shadow:var(--shadow-dark);
  }
  .hero-visual img{width:100%;height:340px;object-fit:cover}
  .hero-float{
    position:absolute;left:16px;bottom:16px;right:16px;
    display:flex;align-items:center;gap:10px;padding:12px 14px;
    background:rgba(23,20,32,.94);border:1px solid var(--line);border-radius:12px;
  }
  .hero-float strong{display:block;font-size:14px;color:var(--text)}
  .hero-float span{display:block;font-size:12px;color:var(--text-2)}
  .pulse-dot{
    width:8px;height:8px;border-radius:50%;background:var(--accent);flex:none;
    animation:pulse 2.4s infinite;
  }
  @keyframes pulse{
    0%{box-shadow:0 0 0 0 rgba(47,214,195,.5)}
    70%{box-shadow:0 0 0 10px rgba(47,214,195,0)}
    100%{box-shadow:0 0 0 0 rgba(47,214,195,0)}
  }

  /* ---------- 图文交替 ---------- */
  .zigzag{
    display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
    padding:44px 0;border-bottom:1px solid var(--line);
  }
  .zigzag:last-child{border-bottom:0;padding-bottom:0}
  .zigzag:first-child{padding-top:0}
  .zigzag.reverse .zz-media{order:2}
  .zz-index{font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--primary);margin:0 0 10px}
  .zz-media{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line)}
  .zz-media img{width:100%;height:312px;object-fit:cover;transition:transform .2s var(--ease)}
  .zz-media:hover img{transform:scale(1.03)}
  .zz-badge{
    position:absolute;left:14px;top:14px;padding:5px 11px;border-radius:999px;
    background:rgba(19,16,23,.86);border:1px solid var(--line);color:var(--text);
    font-size:12px;letter-spacing:.04em;
  }
  .check-list{list-style:none;margin:0 0 22px;padding:0;display:grid;gap:8px}
  .check-list li{position:relative;padding-left:22px;color:var(--text-2);font-size:15px;line-height:1.8}
  .check-list li::before{
    content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:2px;background:var(--primary)
  }
  .text-link{
    display:inline-flex;align-items:center;gap:8px;min-height:44px;
    color:var(--accent);font-size:14px;font-weight:600;text-decoration:none;
    transition:color .18s var(--ease),gap .18s var(--ease);
  }
  .text-link:hover{color:#5ff0df;gap:12px}

  /* ---------- 浅底对比 ---------- */
  .paper{background:var(--paper);color:var(--text-dark)}
  .paper h2,.paper h3{color:var(--text-dark)}
  .paper .eyebrow{color:#0f8c7d}
  .paper .section-head p{color:var(--text-dark-2)}
  .cmp{border-radius:var(--r-card);overflow:hidden;background:#fff;box-shadow:var(--shadow-light);border:1px solid rgba(27,23,32,.08)}
  .cmp-row{
    display:grid;grid-template-columns:.9fr 1fr 1.1fr;
    border-bottom:1px solid rgba(27,23,32,.1);
  }
  .cmp-row:last-child{border-bottom:0}
  .cmp-cell{
    min-height:56px;display:flex;align-items:center;padding:12px 18px;
    font-size:15px;color:var(--text-dark-2);line-height:1.7;
  }
  .cmp-row.cmp-head .cmp-cell{
    background:var(--panel);color:var(--text);font-weight:600;font-size:14px;letter-spacing:.02em;
    min-height:56px;
  }
  .cmp-cell.is-key{color:var(--text-dark);font-weight:600}
  .cmp-cell.cmp-right{
    box-shadow:inset 0 0 0 1px rgba(47,214,195,.5);
    background:rgba(47,214,195,.1);
    color:var(--text-dark);font-weight:600;
  }
  .cmp-cell.cmp-right b{color:#0f8c7d;font-variant-numeric:tabular-nums}
  .paper-note{margin-top:22px;font-size:13px;color:var(--text-dark-2)}

  /* ---------- FAQ ---------- */
  .faq-list{border-top:1px solid var(--line)}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-item summary{
    list-style:none;cursor:pointer;position:relative;
    padding:20px 52px 20px 0;font-size:17px;font-weight:600;color:var(--text);
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary::after{
    content:"+";position:absolute;right:10px;top:50%;transform:translateY(-50%);
    font-size:22px;line-height:1;color:var(--primary);
    transition:transform .2s var(--ease);
  }
  .faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
  .faq-item p{margin:0 0 22px;color:var(--text-2);font-size:15px;max-width:900px}
  .faq-item summary:hover{color:var(--primary)}

  /* ---------- 表单 ---------- */
  .form-wrap{
    display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start;
  }
  .lead-form{display:grid;grid-template-columns:1fr 1fr;gap:20px 24px}
  .field{display:flex;flex-direction:column;gap:8px}
  .field.full{grid-column:1 / -1}
  .field label{font-size:13px;color:var(--text-2)}
  .field label .req{color:var(--primary);margin-left:4px}
  .field input,.field textarea{
    width:100%;background:#171420;border:1px solid var(--line);border-radius:var(--r-btn);
    color:var(--text);font-size:15px;padding:0 14px;height:48px;
    transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
  }
  .field textarea{height:auto;min-height:124px;padding:12px 14px;line-height:1.8;resize:vertical}
  .field input::placeholder,.field textarea::placeholder{color:#6d6779}
  .field input:focus,.field textarea:focus{
    outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(255,106,43,.15);
  }
  .form-actions{grid-column:1 / -1;display:flex;align-items:center;justify-content:flex-end;gap:16px;flex-wrap:wrap}
  .form-hint{font-size:13px;color:var(--text-2);margin:0;margin-right:auto}
  .contact-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
  .contact-list li{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--text-2)}
  .contact-list b{color:var(--text);font-weight:600}
  .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);margin-top:9px;flex:none}

  /* ---------- CTA 条 ---------- */
  .cta-band{
    border-top:1px solid var(--line);
    background:linear-gradient(92deg,rgba(255,106,43,.14),rgba(47,214,195,.08) 65%,rgba(19,16,23,0));
  }
  .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:48px 0;flex-wrap:wrap}
  .cta-inner h2{margin:0 0 8px;font-size:clamp(22px,2.2vw,28px)}
  .cta-inner p{margin:0;color:var(--text-2);font-size:15px}

  /* ---------- 页脚 ---------- */
  .site-footer{border-top:1px solid var(--line);background:#100E14;padding:64px 0 28px}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
  .site-footer h3{font-size:15px;font-weight:600;color:var(--text);margin:0 0 14px}
  .site-footer p,.site-footer li{font-size:13px;line-height:1.9;color:var(--text-2)}
  .site-footer p{margin:0;max-width:360px}
  .site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
  .site-footer a{color:var(--text-2);text-decoration:none;transition:color .18s var(--ease)}
  .site-footer a:hover{color:var(--primary)}
  .footer-bottom{
    margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
    display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
    font-size:13px;color:var(--text-2);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1180px){
    .nav-link{padding:0 9px;font-size:14px}
    .mega-panel{width:700px}
  }
  @media (max-width:1024px){
    .section{padding:72px 0}
    .nav-burger{display:inline-flex}
    .nav-links{
      position:fixed;top:68px;right:0;width:min(320px,88vw);height:calc(100dvh - 68px);
      flex-direction:column;align-items:stretch;gap:4px;margin:0;padding:20px 18px;
      background:var(--panel);border-left:1px solid var(--line);overflow-y:auto;
      transform:translateX(102%);transition:transform .22s var(--ease);z-index:60;
    }
    .nav-toggle:checked ~ .nav-links{transform:translateX(0)}
    .nav-link{height:48px;padding:0 12px;font-size:17px;color:var(--text);border-radius:10px}
    .nav-link::after{display:none}
    .nav-link:hover,.nav-link:focus-visible,.nav-link.is-active{background:rgba(255,106,43,.1);color:var(--primary)}
    .mega-panel{position:fixed;right:16px;top:120px;width:min(320px,88vw);grid-template-columns:1fr;max-height:62vh;overflow-y:auto}
    .hero-inner{grid-template-columns:1fr;gap:36px;padding:60px 0 68px}
    .hero-visual img{height:280px}
    .zigzag{grid-template-columns:1fr;gap:26px;padding:36px 0}
    .zigzag.reverse .zz-media{order:0}
    .zz-media img{height:260px}
    .form-wrap{grid-template-columns:1fr;gap:36px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  }
  @media (max-width:768px){
    .container{padding:0 18px}
    .section{padding:64px 0}
    h2{margin-top:32px}
    .cmp-row{grid-template-columns:1fr}
    .cmp-row .cmp-cell:first-child{background:rgba(27,23,32,.06);color:var(--text-dark);font-weight:600}
    .cmp-cell{min-height:auto;padding:12px 16px}
    .lead-form{grid-template-columns:1fr}
    .form-actions{justify-content:stretch}
    .form-actions .btn{width:100%}
    .cta-inner{padding:40px 0}
  }
  @media (max-width:520px){
    .container{padding:0 16px}
    .brand-text{font-size:15px}
    .brand-suffix{margin-left:4px;padding:0 5px}
    .nav-cta{display:none}
    .hero-inner{padding:48px 0 56px}
    .hero-visual img{height:220px}
    .zz-media img{height:200px}
    .footer-grid{grid-template-columns:1fr}
    .footer-bottom{flex-direction:column}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition:none !important}
    html{scroll-behavior:auto}
  }

/* roulang page: category4 */
:root{
  --primary:#FF6A2B;
  --primary-hover:#FF7F47;
  --primary-active:#E45818;
  --accent:#2FD6C3;
  --peach:#FFD9C7;
  --ink:#131017;
  --panel:#1C1922;
  --panel-soft:#241F2B;
  --line:#2E2A38;
  --paper:#F6F4F1;
  --text:#F4F1F6;
  --muted:#A9A3B3;
  --on-paper:#1B1720;
  --on-paper-muted:#5B5566;
  --error:#E5484D;
  --warn:#F2B21A;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-dark:0 12px 32px rgba(0,0,0,.35);
  --shadow-light:0 8px 24px rgba(19,16,23,.08);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
.site-body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
.site-body *,
.site-body *::before,
.site-body *::after{box-sizing:border-box;}
.site-body img{max-width:100%;display:block;}
.site-body a{color:inherit;text-decoration:none;transition:color .18s var(--ease);}
.site-body button,
.site-body input{font:inherit;}
.site-body h1,.site-body h2,.site-body h3,.site-body h4,.site-body p,.site-body ul,.site-body ol{margin:0;}
.site-body ul,.site-body ol{list-style:none;padding:0;}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
@media (max-width:767px){.container{padding:0 16px;}}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(19,16,23,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(6px);
}
.nav-bar{display:flex;align-items:center;gap:26px;min-height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;min-height:44px;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),#FF9A5C);
  color:#1B1017;font-weight:700;font-size:17px;
  display:flex;align-items:center;justify-content:center;flex:none;
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--text);white-space:nowrap;}
.brand-suffix{
  margin-left:6px;font-size:12px;font-weight:500;color:var(--accent);
  border:1px solid rgba(47,214,195,.42);border-radius:999px;padding:1px 8px;
  vertical-align:middle;letter-spacing:.04em;
}
.nav-links{display:flex;align-items:center;gap:2px;flex:1;min-width:0;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 12px;font-size:15px;color:var(--muted);border-radius:10px;
  transition:color .18s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:9px;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:var(--text);}
.nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--primary);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:12px;flex:none;margin-left:auto;}

.mega-wrap{position:relative;}
.mega-trigger{
  min-height:44px;padding:0 14px;border-radius:10px;font-size:14px;
  background:transparent;border:1px solid var(--line);color:var(--muted);cursor:pointer;
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.mega-trigger:hover,.mega-trigger:focus-visible{color:var(--text);border-color:rgba(47,214,195,.5);background:rgba(47,214,195,.06);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 10px);width:760px;
  display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:22px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow-dark);
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .15s var(--ease),transform .15s var(--ease),visibility .15s var(--ease);
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-title{margin:0 0 10px;font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--accent);}
.mega-list{display:grid;gap:2px;}
.mega-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:44px;padding:0 10px;border-radius:10px;font-size:14px;color:var(--text);
}
.mega-list a:hover,.mega-list a:focus-visible{background:rgba(255,106,43,.12);color:var(--primary);}
.mega-time{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;}
.mega-card{
  display:flex;flex-direction:column;gap:10px;
  background:#171420;border:1px solid var(--line);border-radius:var(--r-img);padding:14px;
}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:10px;}
.mega-card p{margin:0;font-size:13px;line-height:1.7;color:var(--muted);}

.nav-toggle{position:absolute;width:1px;height:1px;opacity:0;clip:rect(0 0 0 0);pointer-events:none;}
.nav-burger{
  display:none;width:46px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:transparent;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.nav-burger span{display:block;width:20px;height:2px;background:var(--text);transition:transform .2s var(--ease),opacity .2s var(--ease);}
.mobile-drawer{display:none;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-sm{min-height:44px;padding:0 16px;font-size:14px;}
.btn-primary{background:var(--primary);color:#1B1017;box-shadow:0 2px 8px rgba(255,106,43,.25);}
.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 8px 20px rgba(255,106,43,.35);}
.btn-primary:active{background:var(--primary-active);transform:translateY(0);box-shadow:0 2px 8px rgba(255,106,43,.25);}
.btn-ghost{border-color:rgba(47,214,195,.45);color:var(--accent);background:transparent;}
.btn-ghost:hover{background:rgba(47,214,195,.1);border-color:var(--accent);}
.btn-ghost:active{background:rgba(47,214,195,.16);}
.btn:focus-visible,
.nav-link:focus-visible,
.mega-trigger:focus-visible,
.mega-list a:focus-visible,
.faq-item summary:focus-visible,
a:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:8px;}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;
  padding:52px 0 68px;
  background-image:linear-gradient(90deg,rgba(19,16,23,.97) 0%,rgba(19,16,23,.9) 44%,rgba(19,16,23,.62) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover,cover;
  background-position:center,center;
  background-repeat:no-repeat,no-repeat;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,43,.22),rgba(255,106,43,0) 68%);
  pointer-events:none;
}
.crumbs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;font-size:13px;color:var(--muted);}
.crumbs li{display:inline-flex;align-items:center;}
.crumbs li:not(:last-child)::after{content:"/";margin-left:10px;color:#4A4453;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--primary);}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:44px;align-items:center;position:relative;z-index:2;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;
  font-size:12px;font-weight:500;letter-spacing:.04em;color:var(--accent);
  border:1px solid rgba(47,214,195,.35);border-radius:999px;padding:4px 12px;
}
.hero-title{font-size:clamp(28px,3.5vw,42px);line-height:1.28;font-weight:700;margin-bottom:18px;letter-spacing:.01em;}
.hero-title em{font-style:normal;color:var(--primary);}
.hero-sub{font-size:17px;line-height:1.9;color:var(--muted);max-width:620px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-side{
  background:rgba(28,25,34,.88);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--shadow-dark);
}
.hero-side-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px;}
.hero-side-title{font-size:13px;color:var(--muted);letter-spacing:.02em;}
.status-line{display:inline-flex;align-items:center;font-size:13px;color:var(--accent);}
.pulse-dot{
  position:relative;display:inline-block;width:9px;height:9px;border-radius:50%;
  background:var(--accent);margin-right:8px;flex:none;
}
.pulse-dot::after{
  content:"";position:absolute;inset:0;border-radius:50%;background:var(--accent);
  animation:pulse 2.4s var(--ease) infinite;
}
@keyframes pulse{
  0%{transform:scale(1);opacity:.55;}
  70%{transform:scale(3.2);opacity:0;}
  100%{transform:scale(3.2);opacity:0;}
}
.mini-metrics{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;
  margin-top:18px;padding-top:18px;border-top:1px solid var(--line);
}
.mini-metrics strong{
  display:block;font-size:24px;line-height:1.3;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.mini-metrics span{font-size:12px;color:var(--muted);line-height:1.6;display:block;margin-top:4px;}
.hero-note{margin-top:16px;font-size:13px;color:var(--muted);}

/* ---------- 板块基础 ---------- */
.section{padding:96px 0;}
.section-head{max-width:740px;margin-bottom:42px;}
.section-title{font-size:clamp(23px,2.4vw,29px);line-height:1.28;font-weight:700;margin-bottom:14px;}
.section-sub{font-size:16px;line-height:1.9;color:var(--muted);}
.section-alt{background:#171420;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

/* ---------- 入口卡（不等高） ---------- */
.bento-quad{display:grid;grid-template-columns:1.18fr .82fr;gap:18px;}
.bento-quad > .entry-card:nth-child(1){grid-row:span 2;}
.bento-quad > .entry-card:nth-child(4){grid-column:1 / -1;}
.entry-card{
  display:flex;flex-direction:column;gap:14px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:0 12px 32px rgba(0,0,0,.35);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.entry-card:hover{transform:translateY(-2px);border-color:rgba(47,214,195,.55);}
.entry-card .cover{border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/9;}
.entry-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .25s var(--ease);}
.entry-card:hover .cover img{transform:scale(1.03);}
.entry-card h3{font-size:19px;font-weight:600;line-height:1.4;}
.entry-card p{font-size:15px;line-height:1.9;color:var(--muted);}
.card-foot{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--primary);}
.card-foot .arrow{transition:transform .2s var(--ease);}
.entry-card:hover .card-foot .arrow{transform:translateX(4px);}
.tag{
  display:inline-flex;align-items:center;font-size:12px;font-weight:500;letter-spacing:.04em;
  color:var(--accent);border:1px solid rgba(47,214,195,.4);border-radius:999px;padding:3px 10px;
}
.entry-card.wide{display:grid;grid-template-columns:220px minmax(0,1fr);gap:24px;align-items:center;}
.entry-card.wide .cover{aspect-ratio:16/9;}
.entry-card.wide .wide-text{display:flex;flex-direction:column;gap:12px;}

/* ---------- 编号步骤行 ---------- */
.step-list{border-top:1px solid var(--line);}
.step-list li{
  display:grid;grid-template-columns:92px minmax(0,1fr) minmax(0,1.1fr);
  gap:24px;align-items:center;padding:26px 0;border-bottom:1px solid var(--line);
  transition:background-color .18s var(--ease);
}
.step-list li:hover{background:rgba(255,106,43,.06);}
.step-num{font-size:22px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.step-list h3{font-size:18px;font-weight:600;}
.step-list p{font-size:15px;color:var(--muted);}

/* ---------- 服务时效表 ---------- */
.table-wrap{
  overflow-x:auto;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:0 12px 32px rgba(0,0,0,.35);
}
.data-table{width:100%;min-width:660px;border-collapse:collapse;font-size:15px;}
.data-table thead th{
  background:var(--panel-soft);color:var(--text);font-size:13px;font-weight:600;letter-spacing:.04em;
  text-align:left;padding:15px 18px;white-space:nowrap;
}
.data-table tbody td{padding:16px 18px;border-top:1px solid var(--line);color:var(--muted);}
.data-table tbody td:first-child{color:var(--text);font-weight:600;}
.data-table tbody tr{transition:background-color .18s var(--ease);}
.data-table tbody tr:hover{background:rgba(255,106,43,.07);}
.data-table .cell-num{font-variant-numeric:tabular-nums;color:var(--text);}
.badge{display:inline-flex;align-items:center;font-size:12px;font-weight:500;letter-spacing:.04em;border-radius:999px;padding:3px 10px;border:1px solid transparent;}
.badge-ok{color:var(--accent);border-color:rgba(47,214,195,.42);}
.badge-wait{color:var(--warn);border-color:rgba(242,178,26,.42);}
.table-foot{margin-top:16px;font-size:13px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:44px;padding:20px 0;font-size:17px;font-weight:600;cursor:pointer;list-style:none;
  transition:color .18s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:15px;
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(45deg);border-color:rgba(47,214,195,.5);}
.faq-answer{max-width:840px;padding:0 0 24px;font-size:15.5px;line-height:1.9;color:var(--muted);}

/* ---------- 全宽 CTA 条 ---------- */
.cta-band{
  position:relative;
  padding:58px 0;
  background:linear-gradient(112deg,#2A1A12 0%,#1C1922 58%,#1C1922 100%);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta-band::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,var(--primary),rgba(255,106,43,0));
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);line-height:1.3;font-weight:700;margin-bottom:10px;}
.cta-band p{max-width:660px;font-size:15px;line-height:1.9;color:var(--muted);}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);background:#100E14;padding:56px 0 28px;font-size:13px;color:var(--muted);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px;margin-bottom:34px;}
.footer-grid h3{font-size:14px;font-weight:600;color:var(--text);margin:0 0 14px;}
.footer-grid p{margin:0;line-height:1.9;}
.footer-grid ul{display:grid;gap:10px;}
.footer-grid a{color:var(--muted);}
.footer-grid a:hover{color:var(--primary);}
.footer-grid li{line-height:1.8;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding-top:20px;font-size:13px;
}

/* ---------- 响应式 ---------- */
@media (min-width:1024px){
  .mobile-drawer{display:none !important;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .mega-wrap{display:none;}
  .nav-burger{display:flex;}
  .mobile-drawer{
    display:block;max-height:0;overflow:hidden;
    border-top:1px solid transparent;
    transition:max-height .25s var(--ease),border-color .25s var(--ease);
  }
  .nav-toggle:checked ~ .mobile-drawer{max-height:680px;border-top-color:var(--line);}
  .nav-toggle:checked ~ .nav-bar .nav-burger span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .nav-toggle:checked ~ .nav-bar .nav-burger span:nth-child(2){opacity:0;}
  .nav-toggle:checked ~ .nav-bar .nav-burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
  .drawer-group{padding:14px 0;border-bottom:1px solid var(--line);}
  .drawer-title{margin-bottom:8px;font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--accent);}
  .drawer-list{display:grid;gap:2px;}
  .drawer-list a{display:flex;align-items:center;min-height:46px;font-size:17px;color:var(--text);}
  .drawer-list a.is-current{color:var(--primary);}
  .drawer-cta{margin:18px 0 24px;width:100%;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-sub{max-width:none;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .bento-quad{grid-template-columns:1fr;}
  .bento-quad > .entry-card:nth-child(1){grid-row:auto;}
  .entry-card.wide{grid-template-columns:1fr;padding:22px;}
}
@media (max-width:767px){
  .site-body{font-size:16px;}
  .section{padding:62px 0;}
  .section-head{margin-bottom:30px;}
  .hero-title{font-size:26px;}
  .hero-sub{font-size:16px;}
  .page-hero{padding:36px 0 52px;}
  .hero-side{padding:20px;}
  .mini-metrics{grid-template-columns:1fr 1fr;}
  .step-list li{grid-template-columns:58px minmax(0,1fr);gap:12px;padding:20px 0;}
  .step-list p{grid-column:2;}
  .step-num{font-size:19px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-inner .btn{width:100%;}
  .faq-item summary{font-size:16px;}
  .entry-card{padding:22px;}
}
@media (max-width:519px){
  .brand-text{font-size:15px;}
  .mini-metrics{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (prefers-reduced-motion:reduce){
  .pulse-dot::after{animation:none;}
  .site-body *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}