/* roulang page: index */
:root{
    --bg-0:#070B14;
    --bg-1:#0B1220;
    --bg-2:#0F172A;
    --brand:#FF6B1A;
    --brand-2:#FF8A3D;
    --cyan:#22D3EE;
    --lime:#A3E635;
    --amber:#FFB020;
    --text:#E8EEF7;
    --muted:#9AA7B8;
    --dim:#64748B;
    --line:rgba(255,255,255,.08);
    --line-cyan:rgba(34,211,238,.35);
    --line-brand:rgba(255,107,26,.35);
    --glass:rgba(15,23,42,.55);
    --radius-card:18px;
    --radius-btn:12px;
    --shadow-card:0 20px 60px rgba(0,0,0,.35);
    --container:1240px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:
      radial-gradient(1100px 620px at 82% -8%, rgba(34,211,238,.10), transparent 60%),
      radial-gradient(900px 560px at 6% 6%, rgba(255,107,26,.10), transparent 62%),
      var(--bg-0);
    color:var(--text);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    letter-spacing:.1px;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;}
  a{color:var(--cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
  a:hover{color:var(--brand-2);}
  button{font-family:inherit;}
  h1,h2,h3,h4{margin:0;line-height:1.2;font-weight:700;}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  input,select,textarea{font-family:inherit;font-size:15px;}
  :focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}
  ::selection{background:rgba(255,107,26,.35);color:#fff;}
  ::-webkit-scrollbar{width:10px;height:10px;}
  ::-webkit-scrollbar-track{background:#080D18;}
  ::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#22304A,#141D2E);border-radius:999px;border:2px solid #080D18;}
  ::-webkit-scrollbar-thumb:hover{background:linear-gradient(180deg,#2E4A63,#1A2740);}

  .container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
  .num{font-variant-numeric:tabular-nums;}

  /* ============ header ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(7,11,20,.78);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:74px;}
  .brand{display:flex;align-items:center;gap:11px;color:var(--text);flex-shrink:0;}
  .brand:hover{color:var(--text);}
  .brand-mark{
    width:38px;height:38px;border-radius:12px;flex-shrink:0;
    display:grid;place-items:center;
    background:linear-gradient(140deg,var(--brand),#FF9A4D 55%,#FFC46B);
    color:#0B1220;font-weight:800;font-size:19px;letter-spacing:-.5px;
    box-shadow:0 0 22px rgba(255,107,26,.45),inset 0 1px 0 rgba(255,255,255,.55);
  }
  .brand-text{font-size:17px;font-weight:800;letter-spacing:.5px;white-space:nowrap;}
  .nav-main{display:flex;align-items:center;gap:2px;}
  .nav-link{
    position:relative;display:inline-block;padding:9px 13px;border-radius:10px;
    color:var(--muted);font-size:15px;font-weight:500;white-space:nowrap;
    transition:color .2s ease,background .2s ease;
  }
  .nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
  .nav-link.active{color:var(--text);background:rgba(255,107,26,.12);box-shadow:inset 0 0 0 1px rgba(255,107,26,.35);}
  .nav-link.active::after{
    content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%);
    width:18px;height:2px;border-radius:2px;background:var(--brand);
  }
  .mega-wrap{position:relative;}
  .mega-trigger{
    display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border-radius:var(--radius-btn);
    background:rgba(255,255,255,.04);border:1px solid rgba(34,211,238,.35);color:var(--text);
    font-size:15px;cursor:pointer;transition:background .2s ease,border-color .2s ease;
  }
  .mega-trigger:hover{background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.6);}
  .mega-trigger svg{transition:transform .25s ease;}
  .mega-wrap:hover .mega-trigger svg,.mega-wrap:focus-within .mega-trigger svg{transform:rotate(180deg);}
  .mega-panel{
    position:absolute;right:0;top:calc(100% + 14px);width:660px;
    background:rgba(11,18,32,.96);
    border:1px solid rgba(34,211,238,.28);
    border-radius:18px;
    box-shadow:0 28px 80px rgba(0,0,0,.6),0 0 0 1px rgba(255,255,255,.03) inset;
    padding:22px;
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
  }
  .mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
  .mega-grid{display:grid;grid-template-columns:1.05fr 1.05fr .95fr;gap:20px;}
  .mega-title{font-size:12px;letter-spacing:2px;color:var(--dim);font-weight:700;margin-bottom:10px;}
  .mega-item{display:block;padding:9px 11px;border-radius:10px;color:var(--muted);font-size:14px;transition:background .2s ease,color .2s ease;}
  .mega-item:hover{background:rgba(34,211,238,.09);color:var(--text);}
  .mega-card{
    border:1px solid var(--line);border-radius:14px;padding:14px;
    background:linear-gradient(160deg,rgba(255,107,26,.14),rgba(34,211,238,.06));
  }
  .mobile-panel{border-top:1px solid var(--line);background:rgba(7,11,20,.98);padding:14px 0 22px;}

  /* ============ buttons ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 22px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
    transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
    white-space:nowrap;
  }
  .btn-primary{
    background:linear-gradient(135deg,var(--brand),var(--brand-2));
    color:#fff;box-shadow:0 0 24px rgba(255,107,26,.35);
  }
  .btn-primary:hover{color:#fff;filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 34px rgba(255,107,26,.5);}
  .btn-primary:active{transform:translateY(0);filter:brightness(.98);}
  .btn-ghost{
    background:rgba(255,255,255,.04);border-color:rgba(34,211,238,.42);color:var(--text);
  }
  .btn-ghost:hover{background:rgba(34,211,238,.12);border-color:rgba(34,211,238,.7);color:#fff;transform:translateY(-2px);}
  .btn-text{background:none;border:none;color:var(--cyan);padding:6px 0;font-weight:600;}
  .btn-text:hover{color:var(--brand-2);}
  .btn-text .arrow{display:inline-block;transition:transform .2s ease;}
  .btn-text:hover .arrow{transform:translateX(4px);}
  .btn[disabled],.btn.is-disabled{filter:grayscale(.6) brightness(.75);box-shadow:none;cursor:not-allowed;}

  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:999px;
    background:rgba(255,107,26,.12);border:1px solid rgba(255,107,26,.35);
    color:#FFC08A;font-size:13px;font-weight:600;letter-spacing:.5px;
  }
  .dot{width:7px;height:7px;border-radius:999px;background:var(--lime);box-shadow:0 0 10px rgba(163,230,53,.9);}
  .dot.amber{background:var(--amber);box-shadow:0 0 10px rgba(255,176,32,.9);}
  .dot.cyan{background:var(--cyan);box-shadow:0 0 10px rgba(34,211,238,.9);}

  .section{padding:82px 0;}
  .section-tight{padding:58px 0;}
  .section-head{max-width:760px;margin-bottom:42px;}
  .section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
  .h2{font-size:clamp(1.5rem,2.5vw,2rem);font-weight:700;letter-spacing:.4px;}
  .h3{font-size:1.15rem;font-weight:600;}
  .lead{color:var(--muted);font-size:16px;margin-top:14px;}
  .divider{height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.14),transparent);}

  /* ============ hero ============ */
  .hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
  .hero-bg{
    position:absolute;inset:0;
    background-image:linear-gradient(105deg,rgba(7,11,20,.96) 0%,rgba(7,11,20,.82) 42%,rgba(7,11,20,.62) 100%),url('/assets/images/backpic/back-1.webp');
    background-size:cover;background-position:center;
  }
  .hero-grid-overlay{
    position:absolute;inset:0;opacity:.16;
    background-image:linear-gradient(rgba(255,255,255,.10) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.10) 1px,transparent 1px);
    background-size:64px 64px;
    mask-image:radial-gradient(70% 60% at 55% 40%,#000 20%,transparent 85%);
    -webkit-mask-image:radial-gradient(70% 60% at 55% 40%,#000 20%,transparent 85%);
  }
  .hero-band{
    position:absolute;left:-10%;right:-10%;bottom:-2px;height:3px;
    background:linear-gradient(90deg,transparent,rgba(255,107,26,.85),rgba(34,211,238,.75),transparent);
    filter:blur(.4px);
  }
  .hero-inner{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center;padding:92px 0 88px;}
  .hero h1{
    font-size:clamp(2rem,4vw,3.25rem);font-weight:800;line-height:1.15;letter-spacing:.6px;margin:22px 0 18px;
  }
  .hero h1 .accent{
    background:linear-gradient(120deg,var(--brand),#FFC46B 45%,var(--cyan));
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .hero-sub{color:var(--muted);font-size:17px;max-width:600px;line-height:1.8;}
  .hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
  .tag{
    padding:7px 13px;border-radius:999px;font-size:13px;color:var(--muted);
    background:rgba(255,255,255,.04);border:1px solid var(--line);
  }
  .tag strong{color:var(--text);font-weight:600;}

  .glass{
    background:var(--glass);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    border:1px solid rgba(255,255,255,.12);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  }
  .hero-card{padding:26px;}
  .hero-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);}
  .stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:18px;}
  .stat-cell{
    padding:14px 16px;border-radius:14px;background:rgba(255,255,255,.035);border:1px solid var(--line);
  }
  .stat-cell .k{font-size:12px;color:var(--dim);letter-spacing:1px;}
  .stat-cell .v{font-size:17px;font-weight:700;margin-top:6px;}
  .entry-list{margin-top:18px;display:grid;gap:10px;}
  .entry-row{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    padding:12px 14px;border-radius:12px;background:rgba(255,255,255,.03);
    border:1px solid var(--line);transition:border-color .2s ease,background .2s ease,transform .2s ease;
  }
  .entry-row:hover{border-color:var(--line-cyan);background:rgba(34,211,238,.07);transform:translateX(3px);}
  .entry-row .name{font-size:14px;font-weight:600;}
  .entry-row .desc{font-size:12px;color:var(--dim);}

  /* ============ trust bar ============ */
  .trust-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(11,18,32,.62);}
  .trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);}
  .trust-cell{background:var(--bg-1);padding:28px 24px;}
  .trust-cell .k{font-size:12px;color:var(--dim);letter-spacing:1.4px;}
  .trust-cell .v{font-size:19px;font-weight:700;margin-top:8px;}
  .trust-cell .s{font-size:13px;color:var(--muted);margin-top:6px;}

  /* ============ ladder ============ */
  .ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;}
  .ladder::before{
    content:"";position:absolute;left:8%;right:8%;top:74px;height:1px;
    background:linear-gradient(90deg,rgba(255,107,26,.45),rgba(34,211,238,.35),rgba(255,255,255,.08));
  }
  .ladder-node{position:relative;}
  .ladder-card{
    border-radius:var(--radius-card);border:1px solid var(--line);
    background:linear-gradient(165deg,rgba(15,23,42,.92),rgba(11,18,32,.72));
    padding:24px;height:100%;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
  }
  .ladder-card:hover{transform:translateY(-4px);border-color:var(--line-cyan);box-shadow:var(--shadow-card);}
  .ladder-node.current .ladder-card{
    border-color:var(--line-brand);
    background:linear-gradient(165deg,rgba(255,107,26,.16),rgba(11,18,32,.86));
    box-shadow:0 0 34px rgba(255,107,26,.22);
  }
  .ladder-step{
    width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
    font-weight:800;font-size:16px;color:var(--text);
    background:rgba(255,255,255,.05);border:1px solid var(--line);margin-bottom:18px;
    font-variant-numeric:tabular-nums;
  }
  .ladder-node.current .ladder-step{background:linear-gradient(140deg,var(--brand),var(--brand-2));border-color:transparent;color:#fff;box-shadow:0 0 20px rgba(255,107,26,.5);}
  .ladder-card h3{font-size:1.08rem;margin-bottom:8px;}
  .ladder-card p{font-size:14px;color:var(--muted);min-height:66px;}
  .chip-row{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 18px;}
  .chip{font-size:12px;padding:5px 10px;border-radius:999px;color:#CFE3EF;background:rgba(34,211,238,.10);border:1px solid rgba(34,211,238,.28);}
  .ladder-node.current .chip{background:rgba(255,107,26,.16);border-color:rgba(255,107,26,.42);color:#FFD3B0;}

  /* ============ compare ============ */
  .compare-wrap{border-radius:var(--radius-card);border:1px solid var(--line);overflow:hidden;background:rgba(11,18,32,.7);}
  table.compare{width:100%;border-collapse:collapse;}
  table.compare th,table.compare td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--line);font-size:14px;vertical-align:top;}
  table.compare thead th{background:rgba(15,23,42,.95);font-size:14px;color:var(--text);font-weight:700;}
  table.compare thead th.hi{background:linear-gradient(180deg,rgba(255,107,26,.22),rgba(255,107,26,.06));color:#FFD3B0;border-bottom-color:var(--line-brand);}
  table.compare tbody th{font-weight:600;color:var(--muted);width:150px;background:rgba(255,255,255,.02);}
  table.compare tbody tr:last-child th,table.compare tbody tr:last-child td{border-bottom:none;}
  table.compare tbody tr:hover td{background:rgba(255,255,255,.025);}
  table.compare td.hi{background:rgba(255,107,26,.055);}
  .compare-cards{display:grid;gap:16px;}
  .compare-card{border-radius:var(--radius-card);border:1px solid var(--line);background:rgba(11,18,32,.75);padding:20px;}
  .compare-card.hi{border-color:var(--line-brand);background:linear-gradient(165deg,rgba(255,107,26,.12),rgba(11,18,32,.85));}
  .compare-card dl{margin:0;display:grid;gap:10px;margin-top:14px;}
  .compare-card dt{font-size:12px;color:var(--dim);letter-spacing:1px;}
  .compare-card dd{margin:2px 0 0;font-size:14px;color:var(--muted);}

  /* ============ limited band ============ */
  .band{
    position:relative;overflow:hidden;border-radius:22px;
    border:1px solid rgba(255,176,32,.35);
    background-image:linear-gradient(100deg,rgba(11,18,32,.96),rgba(11,18,32,.86) 45%,rgba(255,107,26,.24)),url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;
    box-shadow:0 0 44px rgba(255,176,32,.12);
  }
  .band-inner{position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:26px;padding:30px 32px;}
  .countdown{display:flex;gap:8px;align-items:center;}
  .cd-cell{
    min-width:66px;text-align:center;padding:8px 10px;border-radius:12px;
    background:rgba(7,11,20,.7);border:1px solid rgba(255,176,32,.35);
    font-variant-numeric:tabular-nums;font-weight:800;font-size:22px;color:#FFD79A;
    box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  }
  .cd-label{font-size:11px;color:var(--dim);letter-spacing:1px;text-align:center;margin-top:6px;}

  /* ============ cards / list ============ */
  .card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .post-card{
    display:flex;flex-direction:column;overflow:hidden;
    border-radius:var(--radius-card);border:1px solid var(--line);
    background:linear-gradient(170deg,rgba(15,23,42,.9),rgba(11,18,32,.7));
    transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
  }
  .post-card:hover{transform:translateY(-4px);border-color:var(--line-cyan);box-shadow:var(--shadow-card);}
  .post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0B1220;}
  .post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;opacity:.92;}
  .post-card:hover .post-thumb img{transform:scale(1.05);}
  .post-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1;}
  .post-body h3{font-size:1.05rem;line-height:1.45;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .post-body p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
  .post-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--dim);margin-top:16px;padding-top:14px;border-top:1px solid var(--line);}
  .badge{font-size:12px;padding:4px 10px;border-radius:999px;background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.3);color:#A8E9F6;}
  .empty-state{
    grid-column:1/-1;text-align:center;padding:56px 24px;border-radius:var(--radius-card);
    border:1px dashed rgba(255,255,255,.16);background:rgba(255,255,255,.02);color:var(--muted);
  }
  .empty-icon{
    width:54px;height:54px;margin:0 auto 16px;border-radius:16px;display:grid;place-items:center;
    background:rgba(255,107,26,.12);border:1px solid rgba(255,107,26,.3);color:var(--brand-2);
  }

  /* ============ form ============ */
  .form-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:start;}
  .panel{
    border-radius:var(--radius-card);border:1px solid var(--line);
    background:linear-gradient(170deg,rgba(15,23,42,.92),rgba(11,18,32,.75));
    box-shadow:var(--shadow-card);padding:28px;
  }
  .field{margin-bottom:18px;}
  .field label{display:block;font-size:13px;color:var(--muted);margin-bottom:8px;letter-spacing:.5px;}
  .field .req{color:var(--brand-2);}
  .input,.select,.textarea{
    width:100%;padding:12px 14px;border-radius:10px;
    background:rgba(7,11,20,.75);border:1px solid rgba(255,255,255,.12);color:var(--text);
    transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
  }
  .input::placeholder,.textarea::placeholder{color:#5C6A7D;}
  .input:focus,.select:focus,.textarea:focus{
    outline:none;border-color:rgba(34,211,238,.7);
    box-shadow:0 0 0 3px rgba(34,211,238,.16);background:rgba(7,11,20,.95);
  }
  .textarea{min-height:120px;resize:vertical;line-height:1.7;}
  .form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
  .form-note{font-size:13px;color:var(--dim);margin-top:14px;line-height:1.7;}
  .side-item{display:flex;gap:12px;padding:16px 0;border-bottom:1px solid var(--line);}
  .side-item:last-child{border-bottom:none;padding-bottom:0;}
  .side-ico{
    width:36px;height:36px;flex-shrink:0;border-radius:10px;display:grid;place-items:center;
    background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.28);color:var(--cyan);
  }
  .side-item h4{font-size:14px;font-weight:600;margin-bottom:4px;}
  .side-item p{font-size:13px;color:var(--muted);line-height:1.7;}

  /* ============ faq ============ */
  .faq-list{display:grid;gap:12px;}
  .faq-item{
    border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.022);
    transition:border-color .2s ease,background .2s ease;
  }
  .faq-item:hover{border-color:rgba(255,255,255,.18);background:rgba(255,255,255,.04);}
  .faq-item summary{
    list-style:none;cursor:pointer;padding:18px 22px;display:flex;align-items:center;justify-content:space-between;gap:16px;
    font-size:1.03rem;font-weight:600;color:var(--text);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::after{
    content:"+";flex-shrink:0;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
    font-size:18px;font-weight:700;color:var(--brand-2);background:rgba(255,107,26,.12);border:1px solid rgba(255,107,26,.28);
    transition:transform .25s ease,background .25s ease;
  }
  .faq-item[open] summary::after{transform:rotate(45deg);background:rgba(255,107,26,.24);}
  .faq-item[open]{border-color:var(--line-brand);background:rgba(255,107,26,.05);}
  .faq-answer{padding:0 22px 20px;color:var(--muted);font-size:15px;line-height:1.8;}

  /* ============ cta ============ */
  .cta-band{
    position:relative;overflow:hidden;border-radius:24px;
    border:1px solid rgba(255,107,26,.34);
    background:radial-gradient(600px 260px at 12% 20%,rgba(255,107,26,.22),transparent 65%),linear-gradient(150deg,rgba(15,23,42,.96),rgba(7,11,20,.96));
    padding:44px 40px;
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  }
  .cta-band::after{
    content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:999px;
    background:radial-gradient(circle,rgba(34,211,238,.22),transparent 70%);
  }

  /* ============ footer ============ */
  .site-footer{
    position:relative;margin-top:20px;border-top:1px solid var(--line);
    background:linear-gradient(180deg,rgba(11,18,32,.9),rgba(7,11,20,1));
  }
  .footer-top-line{height:1px;background:linear-gradient(90deg,transparent,rgba(255,107,26,.6),rgba(34,211,238,.5),transparent);}
  .footer-grid{display:grid;grid-template-columns:1.4fr .8fr .9fr 1fr;gap:34px;padding:56px 0 40px;}
  .footer-title{font-size:13px;color:var(--dim);letter-spacing:1.6px;font-weight:700;margin-bottom:16px;}
  .footer-link{display:block;color:var(--muted);font-size:14px;padding:6px 0;transition:color .2s ease,transform .2s ease;}
  .footer-link:hover{color:var(--brand-2);transform:translateX(3px);}
  .footer-bottom{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
    padding:20px 0 34px;border-top:1px solid var(--line);font-size:13px;color:var(--dim);
  }

  @media (max-width:1024px){
    .hero-inner{grid-template-columns:1fr;gap:36px;padding:72px 0 64px;}
    .trust-grid{grid-template-columns:1fr 1fr;}
    .ladder{grid-template-columns:1fr 1fr;}
    .ladder::before{display:none;}
    .card-grid{grid-template-columns:1fr 1fr;}
    .form-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
    .mega-panel{width:560px;}
  }
  @media (max-width:768px){
    .section{padding:58px 0;}
    .section-tight{padding:44px 0;}
    .hero-inner{padding:56px 0 52px;}
    .hero-cta .btn{width:100%;}
    .stat-grid{grid-template-columns:1fr;}
    .band-inner{padding:24px 20px;}
    .cd-cell{min-width:56px;font-size:19px;}
    .cta-band{padding:32px 22px;}
    .panel{padding:22px;}
    .form-row{grid-template-columns:1fr;}
  }
  @media (max-width:640px){
    .trust-grid{grid-template-columns:1fr;}
    .ladder{grid-template-columns:1fr;}
    .card-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;}
    .brand-text{font-size:15px;}
    .hero h1{letter-spacing:.3px;}
    .compare-wrap{overflow-x:auto;}
    table.compare{min-width:640px;}
  }

/* roulang page: category1 */
:root{
    --bg-0:#070B14;
    --bg-1:#0B1220;
    --bg-2:#0F172A;
    --primary:#FF6B1A;
    --primary-soft:rgba(255,107,26,.14);
    --primary-line:rgba(255,107,26,.35);
    --cyan:#22D3EE;
    --cyan-line:rgba(34,211,238,.35);
    --lime:#A3E635;
    --amber:#FFB020;
    --text:#E8EEF7;
    --muted:#9AA7B8;
    --weak:#64748B;
    --line:rgba(255,255,255,.08);
    --glass:rgba(15,23,42,.55);
    --radius-card:18px;
    --radius-btn:11px;
    --shadow-card:0 20px 60px rgba(0,0,0,.35);
    --shadow-glow:0 0 24px rgba(255,107,26,.35);
  }
  *,*::before,*::after{ box-sizing:border-box; }
  html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
  body{
    margin:0;
    background:
      radial-gradient(1200px 600px at 12% -8%, rgba(34,211,238,.10), transparent 60%),
      radial-gradient(900px 500px at 92% 4%, rgba(255,107,26,.12), transparent 62%),
      var(--bg-0);
    color:var(--text);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    overflow-x:hidden;
  }
  img{ max-width:100%; display:block; }
  a{ color:inherit; text-decoration:none; }
  button,input,textarea,select{ font:inherit; color:inherit; }
  h1,h2,h3,h4,p{ margin:0; }
  ::selection{ background:rgba(255,107,26,.35); color:#fff; }
  :focus-visible{ outline:2px solid var(--cyan); outline-offset:2px; border-radius:6px; }
  ::-webkit-scrollbar{ width:10px; height:10px; }
  ::-webkit-scrollbar-track{ background:#05080F; }
  ::-webkit-scrollbar-thumb{ background:linear-gradient(180deg,#1E293B,#0F172A); border-radius:999px; border:2px solid #05080F; }
  ::-webkit-scrollbar-thumb:hover{ background:linear-gradient(180deg,#334155,#1E293B); }

  .container-x{ width:100%; max-width:1240px; margin:0 auto; padding:0 24px; }
  .num{ font-variant-numeric:tabular-nums; }

  /* ---------- Header ---------- */
  .site-header{
    position:sticky; top:0; z-index:60;
    background:rgba(7,11,20,.78);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{
    display:flex; align-items:center; gap:20px;
    min-height:70px;
  }
  .brand{ display:inline-flex; align-items:center; gap:10px; flex-shrink:0; }
  .brand-mark{
    width:36px; height:36px; border-radius:11px;
    display:inline-flex; align-items:center; justify-content:center;
    font-weight:800; font-size:18px; color:#0B1220;
    background:linear-gradient(135deg,var(--primary),#FFB020);
    box-shadow:var(--shadow-glow);
  }
  .brand-text{ font-weight:800; font-size:17px; letter-spacing:.02em; white-space:nowrap; }
  .nav-main{
    display:flex; align-items:center; gap:4px;
    margin-left:auto; flex-wrap:nowrap;
  }
  .nav-link{
    position:relative;
    padding:9px 13px; border-radius:10px;
    font-size:14.5px; color:var(--muted);
    white-space:nowrap; transition:color .2s ease, background .2s ease;
  }
  .nav-link:hover{ color:var(--text); background:rgba(255,255,255,.05); }
  .nav-link.active{
    color:#fff;
    background:var(--primary-soft);
    box-shadow:inset 0 0 0 1px var(--primary-line);
  }
  .nav-link.active::after{
    content:""; position:absolute; left:50%; bottom:2px; transform:translateX(-50%);
    width:16px; height:2px; border-radius:2px; background:var(--primary);
  }
  .header-actions{ display:flex; align-items:center; gap:10px; flex-shrink:0; }
  .nav-check{ position:absolute; opacity:0; pointer-events:none; }
  .nav-toggle{
    display:none; width:42px; height:42px; border-radius:11px;
    border:1px solid var(--line); background:rgba(255,255,255,.04);
    align-items:center; justify-content:center; cursor:pointer; color:var(--text);
  }
  .nav-toggle span{ display:block; width:18px; height:2px; background:currentColor; position:relative; }
  .nav-toggle span::before,.nav-toggle span::after{
    content:""; position:absolute; left:0; width:18px; height:2px; background:currentColor;
  }
  .nav-toggle span::before{ top:-6px; }
  .nav-toggle span::after{ top:6px; }

  /* ---------- Buttons ---------- */
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    padding:13px 24px; border-radius:var(--radius-btn);
    font-weight:600; font-size:15px; line-height:1;
    border:1px solid transparent; cursor:pointer;
    transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
  }
  .btn-primary{
    color:#1A0D02;
    background:linear-gradient(135deg,var(--primary),#FF8A3D);
    box-shadow:var(--shadow-glow);
  }
  .btn-primary:hover{ transform:translateY(-2px); box-shadow:0 0 34px rgba(255,107,26,.55); filter:brightness(1.06); }
  .btn-primary:active{ transform:translateY(0); }
  .btn-ghost{
    color:var(--text);
    background:rgba(255,255,255,.04);
    border-color:var(--cyan-line);
  }
  .btn-ghost:hover{ background:rgba(34,211,238,.12); border-color:var(--cyan); transform:translateY(-2px); }
  .btn-sm{ padding:10px 18px; font-size:14px; }
  .btn-block{ width:100%; }
  .btn[disabled]{ filter:saturate(.35); box-shadow:none; cursor:not-allowed; }

  /* ---------- Layout blocks ---------- */
  .section{ padding:88px 0; }
  .section-sm{ padding:56px 0; }
  .section-head{ max-width:760px; margin-bottom:44px; }
  .eyebrow{
    display:inline-flex; align-items:center; gap:8px;
    font-size:13px; letter-spacing:.12em; text-transform:uppercase;
    color:var(--cyan); margin-bottom:16px;
  }
  .eyebrow::before{ content:""; width:22px; height:1px; background:var(--cyan); opacity:.7; }
  .h1{
    font-size:clamp(2rem,4vw,3.25rem);
    font-weight:800; line-height:1.15; letter-spacing:.01em;
  }
  .h2{
    font-size:clamp(1.5rem,2.5vw,2rem);
    font-weight:700; line-height:1.3;
  }
  .h3{ font-size:1.15rem; font-weight:600; line-height:1.5; }
  .lead{ color:var(--muted); font-size:16.5px; line-height:1.85; }
  .muted{ color:var(--muted); }
  .weak{ color:var(--weak); font-size:13.5px; }
  .accent{ color:var(--primary); }
  .accent-cyan{ color:var(--cyan); }
  .divider{ height:1px; width:100%; background:linear-gradient(90deg,transparent,var(--line),transparent); }

  .glass{
    background:var(--glass);
    border:1px solid var(--line);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    box-shadow:var(--shadow-card);
    border-radius:var(--radius-card);
    position:relative;
  }
  .glass::before{
    content:""; position:absolute; inset:0; border-radius:inherit; pointer-events:none;
    background:linear-gradient(180deg,rgba(255,255,255,.10),rgba(255,255,255,0) 42%);
    opacity:.7;
  }
  .card{
    background:linear-gradient(180deg,rgba(15,23,42,.75),rgba(11,18,32,.6));
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:26px;
    box-shadow:var(--shadow-card);
    transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease;
  }
  .card:hover{
    transform:translateY(-4px);
    border-color:var(--cyan-line);
    box-shadow:0 26px 70px rgba(0,0,0,.45);
  }
  .tag{
    display:inline-flex; align-items:center; gap:6px;
    padding:5px 12px; border-radius:999px;
    font-size:12.5px; color:var(--muted);
    background:rgba(255,255,255,.05);
    border:1px solid var(--line);
  }
  .tag-orange{ color:#FFD9C0; background:var(--primary-soft); border-color:var(--primary-line); }
  .tag-cyan{ color:#C8F7FF; background:rgba(34,211,238,.12); border-color:var(--cyan-line); }
  .dot{ width:8px; height:8px; border-radius:50%; background:var(--lime); box-shadow:0 0 10px rgba(163,230,53,.8); flex-shrink:0; }
  .dot.cyan{ background:var(--cyan); box-shadow:0 0 10px rgba(34,211,238,.8); }
  .dot.amber{ background:var(--amber); box-shadow:0 0 10px rgba(255,176,32,.8); }

  /* ---------- Hero ---------- */
  .hero{
    position:relative;
    padding:96px 0 84px;
    overflow:hidden;
    border-bottom:1px solid var(--line);
  }
  .hero-bg{
    position:absolute; inset:0;
    background-image:url('/assets/images/backpic/back-1.webp');
    background-size:cover; background-position:center;
    opacity:.30;
  }
  .hero-mask{
    position:absolute; inset:0;
    background:
      linear-gradient(90deg,rgba(7,11,20,.96) 0%,rgba(7,11,20,.80) 45%,rgba(7,11,20,.62) 100%),
      linear-gradient(180deg,rgba(7,11,20,.55),rgba(7,11,20,.95));
  }
  .hero-grid-lines{
    position:absolute; inset:0; opacity:.10;
    background-image:
      linear-gradient(rgba(255,255,255,.35) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.35) 1px, transparent 1px);
    background-size:64px 64px;
    mask-image:radial-gradient(circle at 30% 40%, #000 0%, transparent 78%);
    -webkit-mask-image:radial-gradient(circle at 30% 40%, #000 0%, transparent 78%);
  }
  .hero-lane{
    position:absolute; right:-140px; top:12%; width:520px; height:520px;
    background:radial-gradient(circle, rgba(255,107,26,.22), transparent 62%);
    filter:blur(8px); pointer-events:none;
  }
  .hero-inner{
    position:relative; z-index:2;
    display:grid; grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
    gap:56px; align-items:center;
  }
  .hero h1{ margin-bottom:20px; }
  .hero-sub{ color:var(--muted); font-size:17px; max-width:600px; margin-bottom:30px; }
  .hero-cta{ display:flex; flex-wrap:wrap; gap:14px; margin-bottom:26px; }
  .hero-trust{ display:flex; flex-wrap:wrap; gap:10px; }

  .score-board{ padding:24px; }
  .score-row{
    display:grid; grid-template-columns:repeat(2,minmax(0,1fr));
    gap:14px; margin-top:18px;
  }
  .score-cell{
    padding:14px 16px; border-radius:14px;
    background:rgba(255,255,255,.035);
    border:1px solid var(--line);
  }
  .score-num{ font-size:22px; font-weight:800; line-height:1.2; }
  .score-label{ font-size:12.5px; color:var(--weak); margin-top:4px; }
  .board-title{ display:flex; align-items:center; justify-content:space-between; gap:12px; }
  .board-list{ margin-top:18px; display:grid; gap:10px; }
  .board-item{
    display:flex; align-items:center; justify-content:space-between; gap:12px;
    padding:11px 14px; border-radius:12px;
    background:rgba(255,255,255,.03);
    border:1px solid var(--line);
    font-size:14px;
  }
  .board-item:hover{ border-color:var(--cyan-line); }

  /* ---------- Ladder ---------- */
  .ladder{
    display:grid; grid-template-columns:repeat(4,minmax(0,1fr));
    gap:0; align-items:stretch; margin-top:12px;
  }
  .ladder-step{
    position:relative;
    padding:26px 22px 24px;
    background:linear-gradient(180deg,rgba(15,23,42,.72),rgba(11,18,32,.5));
    border:1px solid var(--line);
    border-radius:16px;
    margin-right:-1px;
    transition:transform .25s ease, border-color .25s ease;
  }
  .ladder-step:first-child{ border-radius:16px 0 0 16px; }
  .ladder-step:last-child{ border-radius:0 16px 16px 0; margin-right:0; }
  .ladder-step:hover{ transform:translateY(-4px); border-color:var(--cyan-line); z-index:2; }
  .ladder-step.is-current{
    background:linear-gradient(180deg,rgba(255,107,26,.16),rgba(15,23,42,.72));
    border-color:var(--primary-line);
    box-shadow:0 0 32px rgba(255,107,26,.20);
    z-index:3;
  }
  .step-index{
    font-size:12px; letter-spacing:.16em; color:var(--weak); text-transform:uppercase;
  }
  .ladder-step.is-current .step-index{ color:var(--primary); }
  .step-title{ font-size:17px; font-weight:700; margin:10px 0 8px; }
  .step-text{ color:var(--muted); font-size:14px; line-height:1.75; }
  .step-meta{ margin-top:16px; display:flex; flex-wrap:wrap; gap:8px; }

  /* ---------- Entry cards ---------- */
  .entry-grid{ display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:22px; }
  .entry-card{
    display:flex; flex-direction:column; overflow:hidden;
    background:linear-gradient(180deg,rgba(15,23,42,.78),rgba(11,18,32,.55));
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease;
  }
  .entry-card:hover{ transform:translateY(-4px); border-color:var(--cyan-line); box-shadow:0 26px 70px rgba(0,0,0,.45); }
  .entry-media{ position:relative; aspect-ratio:16/9; overflow:hidden; background:#0B1220; }
  .entry-media img{ width:100%; height:100%; object-fit:cover; opacity:.85; transition:transform .5s ease, opacity .4s ease; }
  .entry-card:hover .entry-media img{ transform:scale(1.06); opacity:1; }
  .entry-media::after{
    content:""; position:absolute; inset:0;
    background:linear-gradient(180deg,rgba(7,11,20,.15),rgba(7,11,20,.82));
  }
  .entry-badge{
    position:absolute; left:14px; top:14px; z-index:2;
  }
  .entry-body{ padding:20px 22px 24px; display:flex; flex-direction:column; gap:12px; flex:1; }
  .entry-title{ font-size:17px; font-weight:700; }
  .entry-text{ color:var(--muted); font-size:14px; line-height:1.75; flex:1; }
  .entry-foot{ display:flex; align-items:center; justify-content:space-between; gap:12px; }
  .link-arrow{
    display:inline-flex; align-items:center; gap:6px;
    color:var(--cyan); font-size:14px; font-weight:600;
  }
  .link-arrow span{ transition:transform .2s ease; }
  .link-arrow:hover span{ transform:translateX(4px); }
  .link-arrow:hover{ text-decoration:underline; }

  /* ---------- Status strip ---------- */
  .status-band{
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    background:linear-gradient(90deg,rgba(255,107,26,.12),rgba(15,23,42,.72) 40%,rgba(15,23,42,.72));
    box-shadow:var(--shadow-card);
    padding:22px 26px;
    display:flex; align-items:center; gap:26px; flex-wrap:wrap;
  }
  .status-item{ display:flex; align-items:center; gap:10px; font-size:14px; color:var(--muted); }
  .status-item strong{ color:var(--text); font-weight:700; }
  .status-divider{ width:1px; height:26px; background:var(--line); }

  /* ---------- Checklist ---------- */
  .split{ display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1fr); gap:48px; align-items:center; }
  .split-media{
    border-radius:var(--radius-card); overflow:hidden;
    border:1px solid var(--line); box-shadow:var(--shadow-card); position:relative;
  }
  .split-media img{ width:100%; height:100%; object-fit:cover; opacity:.9; }
  .split-media::after{
    content:""; position:absolute; inset:0;
    background:linear-gradient(180deg,rgba(7,11,20,.12),rgba(7,11,20,.7));
  }
  .check-list{ display:grid; gap:14px; margin-top:26px; }
  .check-item{
    display:flex; gap:14px; align-items:flex-start;
    padding:16px 18px; border-radius:14px;
    background:rgba(255,255,255,.03);
    border:1px solid var(--line);
    transition:border-color .2s ease, background .2s ease;
  }
  .check-item:hover{ border-color:var(--primary-line); background:rgba(255,107,26,.06); }
  .check-icon{
    width:26px; height:26px; border-radius:8px; flex-shrink:0;
    display:inline-flex; align-items:center; justify-content:center;
    background:var(--primary-soft); border:1px solid var(--primary-line);
    color:var(--primary); font-size:13px; font-weight:800;
  }
  .check-title{ font-weight:600; font-size:15px; }
  .check-text{ color:var(--muted); font-size:13.8px; line-height:1.7; }

  /* ---------- FAQ ---------- */
  .faq-wrap{ display:grid; gap:14px; max-width:920px; }
  .faq-item{
    border:1px solid var(--line); border-radius:14px;
    background:rgba(15,23,42,.5);
    overflow:hidden;
    transition:border-color .2s ease, background .2s ease;
  }
  .faq-item:hover{ border-color:var(--cyan-line); background:rgba(15,23,42,.68); }
  .faq-item summary{
    list-style:none; cursor:pointer;
    padding:18px 22px; display:flex; align-items:center; justify-content:space-between; gap:16px;
  }
  .faq-item summary::-webkit-details-marker{ display:none; }
  .faq-item summary h3{ font-size:16px; font-weight:600; margin:0; }
  .faq-icon{
    width:26px; height:26px; border-radius:999px; flex-shrink:0;
    display:inline-flex; align-items:center; justify-content:center;
    border:1px solid var(--line); color:var(--cyan); font-size:16px; line-height:1;
    transition:transform .25s ease, border-color .25s ease;
  }
  .faq-item[open] .faq-icon{ transform:rotate(45deg); border-color:var(--cyan-line); }
  .faq-item[open] summary{ background:rgba(34,211,238,.06); }
  .faq-body{ padding:0 22px 20px; color:var(--muted); font-size:14.8px; line-height:1.8; }

  /* ---------- CTA ---------- */
  .cta-panel{
    position:relative; overflow:hidden;
    border-radius:22px;
    border:1px solid var(--primary-line);
    background:linear-gradient(120deg,rgba(255,107,26,.16),rgba(15,23,42,.82) 45%,rgba(11,18,32,.9));
    box-shadow:0 30px 80px rgba(0,0,0,.45);
    padding:44px 42px;
    display:grid; grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);
    gap:36px; align-items:center;
  }
  .cta-panel::after{
    content:""; position:absolute; right:-90px; top:-90px; width:320px; height:320px;
    background:radial-gradient(circle,rgba(255,107,26,.28),transparent 65%);
    pointer-events:none;
  }
  .cta-actions{ display:flex; flex-wrap:wrap; gap:14px; }
  .cta-facts{ display:grid; gap:12px; position:relative; z-index:2; }
  .fact{
    display:flex; align-items:center; justify-content:space-between; gap:12px;
    padding:14px 18px; border-radius:14px;
    background:rgba(7,11,20,.5); border:1px solid var(--line); font-size:14px;
  }
  .fact strong{ font-size:16px; }

  /* ---------- Footer ---------- */
  .site-footer{
    position:relative; margin-top:40px;
    background:linear-gradient(180deg,#0A101C,#060A12);
    border-top:1px solid var(--line);
    padding:64px 0 30px;
  }
  .footer-top-line{
    position:absolute; top:0; left:0; right:0; height:1px;
    background:linear-gradient(90deg,transparent,rgba(255,107,26,.55),rgba(34,211,238,.45),transparent);
  }
  .footer-grid{
    display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px;
  }
  .footer-title{ font-size:14px; font-weight:700; margin-bottom:16px; color:var(--text); letter-spacing:.02em; }
  .footer-link{
    display:block; font-size:14px; color:var(--muted);
    padding:6px 0; transition:color .2s ease, transform .2s ease;
  }
  .footer-link:hover{ color:var(--cyan); transform:translateX(3px); }
  .footer-bottom{
    margin-top:44px; padding-top:22px;
    border-top:1px solid var(--line);
    display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap;
    font-size:13px; color:var(--weak);
  }

  /* ---------- Responsive ---------- */
  @media (max-width:1100px){
    .entry-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
    .ladder{ grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px; }
    .ladder-step{ border-radius:16px; margin-right:0; }
    .ladder-step:first-child{ border-radius:16px; }
    .ladder-step:last-child{ border-radius:16px; }
  }
  @media (max-width:1024px){
    .hero{ padding:74px 0 64px; }
    .hero-inner{ grid-template-columns:1fr; gap:38px; }
    .split{ grid-template-columns:1fr; gap:32px; }
    .cta-panel{ grid-template-columns:1fr; padding:36px 28px; }
    .footer-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); gap:32px; }
    .nav-main{
      position:absolute; left:0; right:0; top:70px;
      display:none; flex-direction:column; align-items:stretch; gap:6px;
      padding:16px 24px 22px;
      background:rgba(7,11,20,.97);
      backdrop-filter:blur(16px);
      border-bottom:1px solid var(--line);
    }
    .nav-check:checked ~ .nav-main{ display:flex; }
    .nav-link{ padding:12px 14px; font-size:15px; }
    .nav-toggle{ display:inline-flex; }
    .header-actions .btn{ display:none; }
    .header-inner{ position:relative; }
  }
  @media (max-width:768px){
    .section{ padding:60px 0; }
    .section-sm{ padding:44px 0; }
    .container-x{ padding:0 18px; }
    .entry-grid{ grid-template-columns:1fr; }
    .ladder{ grid-template-columns:1fr; }
    .score-row{ grid-template-columns:1fr 1fr; }
    .status-band{ padding:18px 20px; gap:14px; }
    .status-divider{ display:none; }
    .hero-cta .btn{ flex:1 1 100%; }
    .footer-grid{ grid-template-columns:1fr; gap:28px; }
    .footer-bottom{ flex-direction:column; align-items:flex-start; }
  }
  @media (max-width:520px){
    .h1{ font-size:1.9rem; }
    .card{ padding:20px; }
    .cta-actions .btn{ flex:1 1 100%; }
    .brand-text{ font-size:15px; }
    .score-row{ grid-template-columns:1fr; }
  }

/* roulang page: article */
:root{
  --bg:#070B14;
  --bg-2:#0B1220;
  --bg-3:#0F172A;
  --brand:#FF6B1A;
  --brand-2:#FF8A3D;
  --cyan:#22D3EE;
  --lime:#A3E635;
  --amber:#FFB020;
  --text:#E8EEF7;
  --muted:#9AA7B8;
  --dim:#64748B;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,107,26,.35);
  --glass:rgba(15,23,42,.55);
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 20px 60px rgba(0,0,0,.35);
  --container:1240px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(900px 500px at 12% -6%, rgba(255,107,26,.14), transparent 62%),
    radial-gradient(760px 460px at 92% 4%, rgba(34,211,238,.12), transparent 60%),
    linear-gradient(180deg, rgba(7,11,20,0) 0%, rgba(7,11,20,.6) 100%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.06;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px, transparent 1px),linear-gradient(90deg, rgba(255,255,255,.6) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 0%, #000 0%, transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 50% 0%, #000 0%, transparent 72%);
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,border-color .2s ease,opacity .2s ease;}
a:hover{color:#fff;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{list-style:none;}
h1,h2,h3,h4{line-height:1.2;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:8px;}
::selection{background:rgba(255,107,26,.35);color:#fff;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:#070B14;}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#1E293B,#0F172A);border-radius:999px;border:1px solid rgba(255,255,255,.06);}
::-webkit-scrollbar-thumb:hover{background:linear-gradient(180deg,rgba(255,107,26,.7),rgba(34,211,238,.5));}

.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:2;}
.section{padding:72px 0;}
.section-tight{padding:52px 0;}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{font-size:clamp(1.5rem,2.5vw,2rem);font-weight:700;margin:0 0 12px;letter-spacing:.01em;}
.section-head p{margin:0;color:var(--muted);font-size:15.5px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;color:var(--cyan);text-transform:uppercase;margin-bottom:14px;}
.eyebrow::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,20,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:20px;height:70px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:800;flex:none;}
.brand:hover{color:#fff;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--amber));
  color:#0B1220;font-weight:900;font-size:17px;
  box-shadow:0 0 20px rgba(255,107,26,.45);
}
.brand-text{font-size:17px;letter-spacing:.02em;white-space:nowrap;}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link{
  position:relative;padding:8px 12px;border-radius:10px;
  color:var(--muted);font-size:14.5px;white-space:nowrap;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-link.active{
  color:#fff;
  background:rgba(255,107,26,.14);
  box-shadow:inset 0 0 0 1px rgba(255,107,26,.35);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.mega{position:relative;}
.mega-btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:10px;cursor:pointer;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text);font-size:14px;
  transition:border-color .2s ease,background .2s ease;
}
.mega-btn:hover{border-color:rgba(34,211,238,.45);background:rgba(34,211,238,.08);}
.mega-btn .caret{transition:transform .25s ease;}
.mega:hover .mega-btn .caret,.mega:focus-within .mega-btn .caret{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:600px;
  display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:18px;
  padding:20px;border-radius:18px;
  background:rgba(11,18,32,.96);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease,border-color .22s ease;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{
  opacity:1;visibility:visible;transform:translateY(0);border-color:rgba(34,211,238,.35);
}
.mega-col-title{font-size:12px;letter-spacing:.12em;color:var(--dim);text-transform:uppercase;margin-bottom:10px;}
.mega-link{display:block;padding:7px 0;font-size:14px;color:var(--muted);}
.mega-link:hover{color:var(--cyan);}
.mega-spot{
  padding:14px;border-radius:14px;
  background:linear-gradient(150deg,rgba(255,107,26,.16),rgba(34,211,238,.10));
  border:1px solid rgba(255,107,26,.25);
}
.mega-spot strong{display:block;color:#fff;font-size:14px;margin-bottom:6px;}
.mega-spot span{font-size:12.5px;color:var(--muted);line-height:1.6;display:block;}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  cursor:pointer;place-items:center;color:var(--text);
}
.menu-toggle:hover{border-color:rgba(34,211,238,.45);}

/* ============ 按钮 ============ */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:12px;border:0;cursor:pointer;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#0B1220;font-weight:700;font-size:15px;letter-spacing:.01em;
  box-shadow:0 0 24px rgba(255,107,26,.35);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.btn-primary:hover{color:#0B1220;filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 34px rgba(255,107,26,.55);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:12px;cursor:pointer;
  background:rgba(34,211,238,.06);
  border:1px solid rgba(34,211,238,.45);
  color:var(--cyan);font-weight:600;font-size:15px;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:rgba(34,211,238,.16);color:#fff;transform:translateY(-2px);}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--cyan);font-weight:600;font-size:14.5px;}
.btn-text:hover{gap:10px;color:#fff;}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px;}

/* ============ 标签 ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--muted);font-size:12.5px;line-height:1.5;
}
.tag-brand{color:#FFD5B8;border-color:rgba(255,107,26,.4);background:rgba(255,107,26,.12);}
.tag-cyan{color:#B8F4FF;border-color:rgba(34,211,238,.4);background:rgba(34,211,238,.12);}
.dot{width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 10px rgba(163,230,53,.85);display:inline-block;flex:none;}
.dot.cyan{background:var(--cyan);box-shadow:0 0 10px rgba(34,211,238,.85);}

/* ============ 文章 Hero ============ */
.article-hero{
  position:relative;overflow:hidden;
  padding:56px 0 44px;
  border-bottom:1px solid var(--line);
}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.24;filter:saturate(.9);
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.55),rgba(7,11,20,.94));
}
.hero-inner{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--dim);margin-bottom:20px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--cyan);}
.article-hero h1{
  font-size:clamp(2rem,4vw,3.25rem);
  font-weight:800;line-height:1.15;letter-spacing:.01em;
  margin:0 0 20px;max-width:900px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;color:var(--muted);font-size:14px;}
.meta-item{display:inline-flex;align-items:center;gap:8px;}
.meta-item .label{color:var(--dim);}

/* ============ 文章布局 ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:36px;align-items:start;}
.article-main{min-width:0;}
.article-panel{
  background:rgba(15,23,42,.45);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:36px 40px;
  box-shadow:0 18px 50px rgba(0,0,0,.28);
}
.article-body{max-width:840px;font-size:16.5px;line-height:1.85;color:#DCE5F2;}
.article-body p{margin:0 0 18px;line-height:1.85;}
.article-body h2{
  font-size:clamp(1.35rem,2.2vw,1.7rem);font-weight:700;line-height:1.3;
  color:#fff;margin:38px 0 16px;padding-left:14px;
  border-left:3px solid var(--brand);
}
.article-body h3{font-size:1.16rem;font-weight:600;color:#fff;margin:28px 0 12px;line-height:1.4;}
.article-body h4{font-size:1.03rem;font-weight:600;color:#fff;margin:22px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:8px 0;line-height:1.8;}
.article-body li::marker{color:var(--brand);}
.article-body strong{color:#fff;font-weight:600;}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;border-radius:0 12px 12px 0;
  border-left:3px solid var(--cyan);
  background:rgba(34,211,238,.07);
  color:#C7D5E6;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:14px;border:1px solid var(--line);margin:24px 0;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--dim);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;display:block;overflow-x:auto;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap;}
.article-body th{background:rgba(255,255,255,.05);color:#fff;font-weight:600;}
.article-body a{color:var(--cyan);border-bottom:1px solid rgba(34,211,238,.4);}
.article-body a:hover{color:#fff;border-color:#fff;}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.92em;padding:2px 6px;border-radius:6px;
  background:rgba(255,255,255,.08);color:var(--lime);
}
.article-body pre{
  background:#0B1220;border:1px solid var(--line);border-radius:14px;
  padding:16px;overflow-x:auto;margin:24px 0;
}
.article-body pre code{background:none;padding:0;color:#E8EEF7;}
.article-body hr{border:0;height:1px;background:var(--line);margin:32px 0;}
.empty-state{
  text-align:center;padding:56px 20px;border-radius:16px;
  border:1px dashed rgba(255,255,255,.14);
  background:rgba(255,255,255,.02);
}
.empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;
  display:grid;place-items:center;font-size:24px;font-weight:800;
  color:var(--amber);background:rgba(255,176,32,.12);border:1px solid rgba(255,176,32,.32);
}
.empty-state h2{font-size:1.35rem;font-weight:700;margin:0 0 10px;color:#fff;}
.empty-state p{color:var(--muted);margin:0 0 22px;font-size:15px;}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.post-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:24px;padding:18px 22px;border-radius:16px;
  background:rgba(255,255,255,.03);border:1px solid var(--line);
}

/* ============ 侧栏 ============ */
.article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:94px;}
.side-card{
  border-radius:var(--radius);padding:22px;
  background:rgba(15,23,42,.6);
  border:1px solid var(--line);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:0 16px 40px rgba(0,0,0,.28);
}
.side-card h3{font-size:1.02rem;font-weight:600;margin:0 0 14px;color:#fff;}
.side-list{display:flex;flex-direction:column;gap:12px;}
.side-item{display:flex;gap:12px;align-items:flex-start;}
.side-item img{width:66px;height:50px;object-fit:cover;border-radius:10px;border:1px solid var(--line);flex:none;}
.side-item strong{display:block;font-size:14px;color:var(--text);font-weight:600;line-height:1.5;margin-bottom:4px;}
.side-item:hover strong{color:var(--cyan);}
.side-item span{font-size:12.5px;color:var(--dim);}
.side-links{display:flex;flex-direction:column;gap:2px;}
.side-links a{display:flex;align-items:center;justify-content:space-between;padding:9px 0;font-size:14px;color:var(--muted);border-bottom:1px dashed var(--line);}
.side-links a:last-child{border-bottom:0;}
.side-links a:hover{color:var(--cyan);}

/* ============ 卡片与网格 ============ */
.grid-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius);
  background:rgba(15,23,42,.55);
  border:1px solid var(--line);
  box-shadow:0 18px 46px rgba(0,0,0,.3);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.35);box-shadow:0 24px 60px rgba(0,0,0,.42);}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0B1220;}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card:hover .card-cover img{transform:scale(1.05);}
.card-cover .badge{position:absolute;left:14px;top:14px;}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:1.06rem;font-weight:600;margin:0;line-height:1.5;color:#fff;}
.card:hover .card-body h3{color:var(--cyan);}
.card-body p{margin:0;color:var(--muted);font-size:14.5px;line-height:1.7;}
.card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--dim);}
.badge{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;
  font-size:12px;line-height:1.5;
  background:rgba(11,18,32,.85);color:#FFD5B8;
  border:1px solid rgba(255,107,26,.4);
  backdrop-filter:blur(6px);
}

/* ============ CTA 横条 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;
  border:1px solid rgba(255,107,26,.3);
  background:linear-gradient(120deg,rgba(255,107,26,.16),rgba(34,211,238,.10) 55%,rgba(15,23,42,.9));
  padding:44px 44px;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,176,32,.28),transparent 68%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(1.4rem,2.4vw,1.9rem);font-weight:700;margin:0 0 12px;color:#fff;}
.cta-band p{margin:0 0 24px;color:var(--muted);max-width:640px;font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  border:1px solid var(--line);border-radius:16px;
  background:rgba(15,23,42,.5);
  overflow:hidden;transition:border-color .25s ease,background .25s ease;
}
.faq-item:hover{border-color:rgba(34,211,238,.3);background:rgba(15,23,42,.7);}
.faq-item[open]{border-color:rgba(34,211,238,.4);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:#fff;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  width:24px;height:24px;flex:none;border-radius:50%;position:relative;
  border:1px solid rgba(34,211,238,.5);transition:transform .25s ease,background .25s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--cyan);transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:1.6px;}
.faq-icon::after{width:1.6px;height:10px;transition:opacity .25s ease;}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:rgba(34,211,238,.15);}
.faq-item[open] .faq-icon::after{opacity:0;}
.faq-body{padding:0 22px 20px;color:var(--muted);font-size:15px;line-height:1.8;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;margin-top:24px;padding:52px 0 28px;
  background:linear-gradient(180deg,rgba(11,18,32,.7),rgba(7,11,20,1));
  border-top:1px solid var(--line);
  z-index:2;
}
.footer-top-line{
  position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,107,26,.65),rgba(34,211,238,.55),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;letter-spacing:.06em;margin-bottom:14px;}
.footer-link{display:block;padding:5px 0;color:var(--muted);font-size:14px;}
.footer-link:hover{color:var(--cyan);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  margin-top:36px;padding-top:22px;border-top:1px solid var(--line);
  color:var(--dim);font-size:13px;
}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .nav-link{padding:8px 9px;font-size:14px;}
  .mega-panel{width:520px;grid-template-columns:1fr 1fr;}
}
@media (max-width:1023px){
  .nav-main{
    position:fixed;left:16px;right:16px;top:80px;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:16px;border-radius:18px;margin:0;
    background:rgba(11,18,32,.98);
    border:1px solid var(--line);
    box-shadow:var(--shadow);
    display:none;max-height:calc(100vh - 110px);overflow-y:auto;
  }
  .nav-main.open{display:flex;}
  .nav-link{padding:12px 14px;font-size:15.5px;}
  .menu-toggle{display:grid;}
  .mega{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .article-side{position:static;}
  .grid-cards{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .section{padding:52px 0;}
  .section-tight{padding:40px 0;}
  .container-x{padding:0 18px;}
  .brand-text{font-size:15.5px;}
  .nav-actions .btn-primary{display:none;}
  .article-hero{padding:40px 0 32px;}
  .article-panel{padding:24px 20px;}
  .article-body{font-size:16px;}
  .cta-band{padding:30px 24px;border-radius:18px;}
  .cta-actions .btn-primary,.cta-actions .btn-ghost{width:100%;}
  .post-foot{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .grid-cards{grid-template-columns:minmax(0,1fr);}
  .article-hero h1{font-size:1.72rem;}
  .meta-row{font-size:13px;gap:8px 14px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category2 */
:root{
  --bg-900:#070B14;
  --bg-800:#0B1220;
  --bg-700:#0F172A;
  --primary:#FF6B1A;
  --primary-soft:#FF8A3D;
  --cyan:#22D3EE;
  --lime:#A3E635;
  --amber:#FFB020;
  --text:#E8EEF7;
  --muted:#9AA7B8;
  --dim:#64748B;
  --border:rgba(255,255,255,0.08);
  --border-strong:rgba(255,107,26,0.35);
  --glass:rgba(15,23,42,0.55);
  --radius-card:18px;
  --radius-btn:12px;
  --shadow-card:0 20px 60px rgba(0,0,0,0.35);
  --danger:#F87171;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{text-decoration:underline;}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:.2px;}
p{margin:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:#070B14;}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#FF6B1A,#22D3EE);border-radius:999px;border:2px solid #070B14;}
.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,20,.84);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;gap:18px;height:74px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  font-weight:800;font-size:19px;color:#0B1220;
  background:linear-gradient(135deg,var(--primary),var(--amber));
  box-shadow:0 0 22px rgba(255,107,26,.42);
}
.brand-text{font-weight:800;font-size:17px;color:var(--text);white-space:nowrap;letter-spacing:.5px;}
.nav-main{display:flex;align-items:center;gap:2px;margin-left:auto;overflow-x:auto;scrollbar-width:none;}
.nav-main::-webkit-scrollbar{display:none;}
.nav-link{
  padding:8px 12px;border-radius:10px;font-size:14.5px;color:var(--muted);
  white-space:nowrap;transition:all .2s ease;text-decoration:none;display:inline-block;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.06);text-decoration:none;}
.nav-link.active{
  color:#fff;background:rgba(255,107,26,.15);
  box-shadow:inset 0 0 0 1px var(--border-strong);
}
.mega{position:relative;flex-shrink:0;}
.mega-trigger{
  display:flex;align-items:center;gap:6px;padding:9px 15px;border-radius:11px;border:0;cursor:pointer;
  background:linear-gradient(135deg,var(--primary),var(--primary-soft));
  color:#0B1220;font-weight:700;font-size:14px;
  box-shadow:0 0 22px rgba(255,107,26,.38);transition:all .2s ease;
}
.mega-trigger:hover{filter:brightness(1.07);transform:translateY(-1px);}
.caret{display:inline-block;transition:transform .22s ease;font-size:11px;}
.mega:hover .caret,.mega:focus-within .caret{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:560px;
  background:rgba(11,18,32,.97);
  border:1px solid var(--border);border-radius:16px;padding:20px;
  box-shadow:0 26px 70px rgba(0,0,0,.55);
  backdrop-filter:blur(14px);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{
  opacity:1;visibility:visible;transform:translateY(0);
  border-color:rgba(34,211,238,.35);
}
.mega-col-title{font-size:12.5px;letter-spacing:1px;color:var(--dim);font-weight:700;margin-bottom:10px;}
.mega-item{display:block;padding:9px 11px;border-radius:10px;color:var(--muted);font-size:14px;text-decoration:none;transition:all .18s ease;}
.mega-item:hover{background:rgba(34,211,238,.09);color:var(--text);text-decoration:none;transform:translateX(2px);}
.mega-item span{display:block;font-size:12.5px;color:var(--dim);line-height:1.6;}

/* ===== 通用按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:700;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:all .22s ease;
}
.btn:hover{text-decoration:none;}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-soft));
  color:#0B1220;box-shadow:0 0 24px rgba(255,107,26,.35);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(255,107,26,.55);filter:brightness(1.05);}
.btn-ghost{
  background:rgba(34,211,238,.06);
  border-color:rgba(34,211,238,.42);
  color:#BDF3FB;
}
.btn-ghost:hover{background:rgba(34,211,238,.16);transform:translateY(-2px);color:#E6FEFF;}
.btn:focus-visible,a:focus-visible,summary:focus-visible,button:focus-visible{
  outline:2px solid var(--cyan);outline-offset:2px;
}

/* ===== Hero ===== */
.hero-page{
  position:relative;overflow:hidden;
  padding:52px 0 60px;
  background-image:linear-gradient(100deg,rgba(7,11,20,.96) 0%,rgba(7,11,20,.78) 46%,rgba(7,11,20,.62) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--border);
}
.hero-page::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:46px 46px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 85%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.35fr .85fr;gap:44px;align-items:center;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--dim);margin-bottom:18px;}
.crumb a{color:var(--muted);text-decoration:none;}
.crumb a:hover{color:var(--primary);}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(255,107,26,.12);border:1px solid var(--border-strong);
  color:#FFC79A;font-size:13px;font-weight:600;margin-bottom:18px;
}
.hero-page h1{
  font-size:clamp(2rem,4vw,3.1rem);font-weight:800;line-height:1.15;
  margin-bottom:16px;
}
.hero-page h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--primary),var(--amber));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{color:var(--muted);font-size:16.5px;max-width:640px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  font-size:12.5px;color:var(--muted);
  background:rgba(255,255,255,.04);border:1px solid var(--border);
}
.tag.orange{color:#FFC79A;border-color:var(--border-strong);background:rgba(255,107,26,.1);}
.tag.cyan{color:#A5F0FA;border-color:rgba(34,211,238,.35);background:rgba(34,211,238,.08);}

.glass-card{
  position:relative;
  background:var(--glass);border:1px solid var(--border);
  border-radius:var(--radius-card);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);padding:22px;
}
.glass-card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(180deg,rgba(255,255,255,.09),transparent 42%);
}
.score-card-title{font-size:13px;color:var(--dim);letter-spacing:1px;font-weight:700;margin-bottom:14px;}
.score-row{display:flex;align-items:center;justify-content:space-between;padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.08);}
.score-row:last-child{border-bottom:0;}
.score-row .k{color:var(--muted);font-size:14px;}
.score-row .v{font-weight:700;font-size:15px;color:#fff;}
.score-row .v.cy{color:var(--cyan);}
.score-row .v.lm{color:var(--lime);}
.pulse-dot{width:8px;height:8px;border-radius:50%;display:inline-block;background:var(--lime);box-shadow:0 0 10px var(--lime);margin-right:8px;}

/* ===== 板块 ===== */
.section{padding:72px 0;}
.section-alt{background:var(--bg-800);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-head{max-width:720px;margin-bottom:36px;}
.eyebrow{font-size:13px;letter-spacing:2px;color:var(--primary);font-weight:700;margin-bottom:10px;}
.section-head h2{font-size:clamp(1.5rem,2.5vw,2rem);font-weight:700;margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:15.5px;}

/* 列表式信息条 */
.info-list{border-top:1px solid var(--border);}
.info-item{
  display:grid;grid-template-columns:56px 1fr;gap:18px;align-items:start;
  padding:20px 12px;border-bottom:1px solid var(--border);
  transition:background .2s ease;border-radius:10px;
}
.info-item:hover{background:rgba(34,211,238,.05);}
.info-index{
  font-size:20px;font-weight:800;color:var(--primary);
  font-variant-numeric:tabular-nums;opacity:.95;
}
.info-item h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.info-item p{color:var(--muted);font-size:14.5px;}

/* 对比表 */
.table-wrap{
  border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;background:rgba(11,18,32,.6);box-shadow:var(--shadow-card);
}
.cmp-table{width:100%;border-collapse:collapse;font-size:14.5px;}
.cmp-table th{
  background:rgba(15,23,42,.92);text-align:left;padding:16px 18px;
  color:var(--dim);font-size:13px;font-weight:700;letter-spacing:1px;
  border-bottom:1px solid var(--border);white-space:nowrap;
}
.cmp-table td{
  padding:18px;border-bottom:1px solid var(--border);
  color:var(--muted);vertical-align:top;line-height:1.7;
}
.cmp-table tbody tr:last-child td{border-bottom:0;}
.cmp-table tbody tr{transition:background .2s ease;}
.cmp-table tbody tr:hover{background:rgba(34,211,238,.05);}
.cmp-table td strong{color:var(--text);display:block;font-size:15px;margin-bottom:4px;}
.cmp-table .cell-link{color:var(--cyan);font-weight:600;text-decoration:none;white-space:nowrap;}
.cmp-table .cell-link:hover{text-decoration:underline;color:#7DE7F7;}
.pill{
  display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--border);color:var(--muted);margin:0 4px 4px 0;
}
.pill.p{color:#FFC79A;background:rgba(255,107,26,.1);border-color:var(--border-strong);}
.pill.g{color:#D8F5A8;background:rgba(163,230,53,.09);border-color:rgba(163,230,53,.3);}
.pill.c{color:#A5F0FA;background:rgba(34,211,238,.09);border-color:rgba(34,211,238,.3);}

/* 时间线 / 步骤 */
.steps{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.steps::before{
  content:"";position:absolute;top:26px;left:6%;right:6%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,107,26,.5),rgba(34,211,238,.5),transparent);
}
.step{position:relative;padding-top:64px;}
.step-dot{
  position:absolute;top:10px;left:0;
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  background:rgba(15,23,42,.95);border:1px solid var(--border-strong);
  color:var(--primary);font-weight:800;font-size:14px;
  box-shadow:0 0 20px rgba(255,107,26,.28);
}
.step h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.step p{color:var(--muted);font-size:14.5px;}

/* 图像卡片 */
.cover-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.cover-card{
  background:rgba(15,23,42,.55);border:1px solid var(--border);
  border-radius:var(--radius-card);overflow:hidden;
  transition:all .25s ease;box-shadow:0 14px 40px rgba(0,0,0,.3);
}
.cover-card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.38);box-shadow:0 22px 54px rgba(0,0,0,.45);}
.cover-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0B1220;}
.cover-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;opacity:.9;}
.cover-card:hover .cover-media img{transform:scale(1.06);}
.cover-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.1),rgba(7,11,20,.72));
}
.cover-body{padding:18px 20px 22px;}
.cover-body h3{font-size:16px;font-weight:700;margin-bottom:8px;}
.cover-body p{color:var(--muted);font-size:14px;}

/* FAQ */
.faq-item{
  border:1px solid var(--border);border-radius:14px;
  background:rgba(15,23,42,.48);margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease,background .2s ease;
}
.faq-item:hover{border-color:rgba(34,211,238,.28);}
.faq-item[open]{border-color:var(--border-strong);background:rgba(15,23,42,.72);}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-weight:600;font-size:16px;color:var(--text);
}
.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 ease;flex-shrink:0;
}
.faq-item[open] summary::after{content:"−";}
.faq-body{padding:0 22px 20px;color:var(--muted);font-size:15px;line-height:1.8;}

/* CTA 条 */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid var(--border-strong);border-radius:22px;
  background:linear-gradient(120deg,rgba(255,107,26,.16),rgba(11,18,32,.9) 48%,rgba(34,211,238,.14));
  padding:38px 34px;
  display:flex;flex-wrap:wrap;align-items:center;gap:26px;justify-content:space-between;
  box-shadow:0 22px 60px rgba(0,0,0,.42);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,26,.35),transparent 68%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(1.35rem,2.2vw,1.85rem);font-weight:700;margin-bottom:8px;position:relative;z-index:2;}
.cta-band p{color:var(--muted);font-size:15px;max-width:620px;position:relative;z-index:2;margin:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:2;}

/* 页脚 */
.site-footer{position:relative;background:var(--bg-800);border-top:1px solid var(--border);padding:58px 0 28px;}
.footer-top-line{
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,107,26,.6),rgba(34,211,238,.6),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:38px;}
.footer-title{font-size:14px;font-weight:700;letter-spacing:.6px;color:#fff;margin-bottom:14px;}
.footer-link{display:block;color:var(--muted);font-size:14px;padding:6px 0;text-decoration:none;transition:all .2s ease;}
.footer-link:hover{color:var(--primary);transform:translateX(3px);text-decoration:none;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:38px;padding-top:20px;border-top:1px solid var(--border);
  font-size:13px;color:var(--dim);
}
.dot{width:8px;height:8px;border-radius:50%;display:inline-block;background:var(--lime);box-shadow:0 0 10px var(--lime);}
.dot.cyan{background:var(--cyan);box-shadow:0 0 10px var(--cyan);}

/* 响应式 */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:30px;}
  .cover-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .steps{grid-template-columns:1fr;gap:8px;}
  .steps::before{display:none;}
  .step{padding-top:0;padding-left:52px;padding-bottom:18px;}
  .step-dot{top:2px;left:0;}
}
@media (max-width:768px){
  .header-inner{height:auto;flex-wrap:wrap;padding:12px 0;gap:12px;}
  .nav-main{order:3;width:100%;margin-left:0;padding-bottom:4px;}
  .brand-text{font-size:15.5px;}
  .mega-panel{width:calc(100vw - 32px);right:-8px;padding:16px;}
  .section{padding:52px 0;}
  .hero-page{padding:38px 0 46px;}
  .cta-band{padding:28px 22px;}
  .cover-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .container-x{padding:0 16px;}
  .hero-actions .btn{width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .info-item{grid-template-columns:40px 1fr;gap:12px;padding:16px 6px;}
}

/* roulang page: category3 */
:root{
  --bg:#070B14;
  --bg-2:#0B1220;
  --bg-3:#0F172A;
  --brand:#FF6B1A;
  --brand-2:#FF8A3D;
  --cyan:#22D3EE;
  --lime:#A3E635;
  --amber:#FFB020;
  --text:#E8EEF7;
  --muted:#9AA7B8;
  --weak:#64748B;
  --border:rgba(255,255,255,.08);
  --border-strong:rgba(255,107,26,.35);
  --glass:rgba(15,23,42,.55);
  --radius-card:18px;
  --radius-btn:11px;
  --shadow-card:0 20px 60px rgba(0,0,0,.35);
  --container:1240px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(900px 520px at 10% -8%, rgba(255,107,26,.13), transparent 62%),
    radial-gradient(760px 480px at 96% 2%, rgba(34,211,238,.10), transparent 60%);
}
img{max-width:100%;display:block;}
a{color:var(--cyan);text-decoration:none;}
a:hover{text-decoration:none;}
button,input,select,textarea{font-family:inherit;}
h1,h2,h3,h4,p,ul{margin:0;}
ul{padding:0;list-style:none;}
::selection{background:rgba(255,107,26,.35);color:#fff;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:#070B14;}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,rgba(255,107,26,.6),rgba(34,211,238,.45));border-radius:999px;border:2px solid #070B14;}
::-webkit-scrollbar-thumb:hover{background:linear-gradient(180deg,rgba(255,107,26,.85),rgba(34,211,238,.65));}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}

.container-x{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:1;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(7,11,20,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:26px;
  height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--text);
  font-weight:700;
  font-size:16px;
  letter-spacing:.02em;
}
.brand:hover .brand-text{color:var(--brand);}
.brand-mark{
  width:34px;height:34px;
  border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--amber));
  color:#0B1220;
  font-weight:800;
  font-size:17px;
  box-shadow:0 0 18px rgba(255,107,26,.45);
}
.brand-text{transition:color .2s;}
.nav-main{
  display:flex;
  align-items:center;
  gap:2px;
  flex:1;
  min-width:0;
}
.nav-link{
  position:relative;
  padding:8px 12px;
  border-radius:9px;
  font-size:14.5px;
  color:var(--muted);
  white-space:nowrap;
  transition:color .2s,background .2s;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.active{color:var(--brand);background:rgba(255,107,26,.12);box-shadow:inset 0 0 0 1px rgba(255,107,26,.28);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.04);
  color:var(--text);
  cursor:pointer;
  place-items:center;
  transition:.2s;
}
.nav-toggle:hover{border-color:rgba(34,211,238,.4);color:var(--cyan);}
.mobile-panel{
  display:none;
  border-top:1px solid var(--border);
  background:rgba(7,11,20,.98);
  padding:10px 20px 18px;
}
.mobile-panel.open{display:block;}
.mobile-panel a{
  display:block;
  padding:12px 4px;
  color:var(--muted);
  border-bottom:1px solid var(--border);
  font-size:15px;
}
.mobile-panel a.active{color:var(--brand);}
.mobile-panel a:last-child{border-bottom:none;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .22s,box-shadow .22s,background .22s,border-color .22s,color .22s,filter .22s;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#fff;
  box-shadow:0 0 24px rgba(255,107,26,.35);
}
.btn-primary:hover{
  transform:translateY(-2px);
  filter:brightness(1.08);
  box-shadow:0 8px 34px rgba(255,107,26,.5);
  color:#fff;
}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:rgba(34,211,238,.38);
  color:var(--cyan);
}
.btn-ghost:hover{
  transform:translateY(-2px);
  background:rgba(34,211,238,.12);
  border-color:rgba(34,211,238,.65);
  color:#E8FDFF;
}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn:disabled{filter:grayscale(.7);opacity:.55;box-shadow:none;cursor:not-allowed;}

/* ---------- Tag / dot ---------- */
.tag{
  display:inline-block;
  padding:4px 11px;
  border-radius:999px;
  font-size:12.5px;
  line-height:1.6;
  color:var(--cyan);
  background:rgba(34,211,238,.1);
  border:1px solid rgba(34,211,238,.28);
}
.dot{
  width:8px;height:8px;border-radius:50%;
  display:inline-block;
  background:var(--lime);
  box-shadow:0 0 10px rgba(163,230,53,.8);
}
.dot.cyan{background:var(--cyan);box-shadow:0 0 10px rgba(34,211,238,.8);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  padding:76px 0 88px;
  border-bottom:1px solid var(--border);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;
  background-position:center;
  opacity:.22;
}
.hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.7) 0%,rgba(7,11,20,.93) 58%,#070B14 100%);
}
.hero-lines{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:58px 58px;
  -webkit-mask-image:radial-gradient(circle at 26% 34%,#000,transparent 72%);
  mask-image:radial-gradient(circle at 26% 34%,#000,transparent 72%);
}
.hero-inner{
  display:grid;
  grid-template-columns:1.06fr .94fr;
  gap:56px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--brand);
  background:rgba(255,107,26,.1);
  border:1px solid rgba(255,107,26,.3);
  margin-bottom:22px;
}
.hero h1{
  font-size:clamp(2rem,4vw,3.25rem);
  font-weight:800;
  line-height:1.15;
  letter-spacing:.01em;
  margin-bottom:20px;
}
.hero h1 em{
  font-style:normal;
  color:var(--brand);
}
.hero-sub{
  font-size:16.5px;
  color:var(--muted);
  max-width:600px;
  margin-bottom:30px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;}
.hero-points li{
  display:flex;
  align-items:center;
  gap:9px;
  font-size:14px;
  color:var(--muted);
}
.hero-points li::before{
  content:"";
  width:7px;height:7px;border-radius:2px;
  background:var(--cyan);
  box-shadow:0 0 10px rgba(34,211,238,.75);
  flex-shrink:0;
}
.hero-media{position:relative;}
.media-frame{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow-card);
  background:var(--bg-3);
}
.media-frame img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}
.media-frame::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.05) 35%,rgba(7,11,20,.78) 100%);
}
.hero-stat{
  position:absolute;
  left:-16px;
  bottom:-26px;
  min-width:236px;
  padding:16px 18px;
  border-radius:16px;
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--border);
  box-shadow:0 20px 60px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.08);
}
.hero-stat .stat-label{font-size:12.5px;color:var(--weak);letter-spacing:.06em;}
.hero-stat .stat-value{
  font-size:26px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  line-height:1.2;
  margin:4px 0 6px;
  color:var(--text);
}
.hero-stat .stat-value span{color:var(--lime);font-size:15px;font-weight:600;margin-left:6px;}
.hero-bars{display:flex;gap:6px;margin-top:10px;}
.hero-bars i{
  display:block;height:5px;border-radius:999px;flex:1;
  background:rgba(255,255,255,.09);
}
.hero-bars i.on{background:linear-gradient(90deg,var(--brand),var(--amber));box-shadow:0 0 10px rgba(255,107,26,.6);}

/* ---------- Data strip ---------- */
.strip{border-bottom:1px solid var(--border);background:rgba(11,18,32,.55);}
.strip-inner{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  padding:24px 0;
}
.strip-item{display:flex;align-items:baseline;gap:12px;}
.strip-item strong{
  font-size:24px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  color:var(--brand);
}
.strip-item span{font-size:14px;color:var(--muted);}

/* ---------- Sections ---------- */
.section{padding:84px 0;position:relative;}
.section-alt{background:linear-gradient(180deg,rgba(11,18,32,.75),rgba(7,11,20,0));border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-head{max-width:740px;margin-bottom:44px;}
.section-tag{
  display:inline-block;
  font-size:13px;
  letter-spacing:.1em;
  color:var(--cyan);
  margin-bottom:12px;
}
.section-head h2{
  font-size:clamp(1.5rem,2.5vw,2rem);
  font-weight:700;
  line-height:1.25;
  margin-bottom:12px;
}
.section-head p{color:var(--muted);font-size:16px;}

/* ---------- Coverage grid ---------- */
.cover-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:22px;
}
.cover-card{
  position:relative;
  padding:28px;
  border-radius:var(--radius-card);
  background:linear-gradient(160deg,rgba(15,23,42,.92),rgba(11,18,32,.62));
  border:1px solid var(--border);
  transition:transform .25s,border-color .25s,box-shadow .25s;
  overflow:hidden;
}
.cover-card::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:linear-gradient(180deg,var(--brand),rgba(34,211,238,.5));
  opacity:.85;
}
.cover-card:hover{
  transform:translateY(-3px);
  border-color:rgba(34,211,238,.35);
  box-shadow:0 18px 44px rgba(0,0,0,.42);
}
.cover-num{
  font-size:13px;
  font-weight:700;
  letter-spacing:.16em;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.cover-card h3{font-size:1.15rem;font-weight:600;margin:10px 0 10px;}
.cover-card p{color:var(--muted);font-size:14.5px;}

/* ---------- Timeline ---------- */
.timeline-wrap{display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:start;}
.timeline{position:relative;padding-left:42px;}
.timeline::before{
  content:"";
  position:absolute;
  left:14px;top:10px;bottom:12px;
  width:2px;
  background:linear-gradient(180deg,rgba(255,107,26,.75),rgba(34,211,238,.35),rgba(34,211,238,0));
}
.tl-item{position:relative;padding-bottom:34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;
  left:-42px;
  top:2px;
  width:30px;height:30px;
  border-radius:50%;
  display:grid;place-items:center;
  font-size:12px;
  font-weight:700;
  color:var(--brand);
  background:#0B1220;
  border:1px solid var(--border-strong);
  box-shadow:0 0 16px rgba(255,107,26,.28);
  font-variant-numeric:tabular-nums;
}
.tl-item h3{font-size:1.1rem;font-weight:600;margin-bottom:8px;}
.tl-item p{color:var(--muted);font-size:15px;margin-bottom:10px;}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;}
.tl-meta span{
  font-size:12.5px;
  color:var(--weak);
  padding:3px 10px;
  border-radius:999px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.03);
}
.timeline-aside{
  padding:26px;
  border-radius:var(--radius-card);
  background:var(--glass);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border:1px solid var(--border);
  box-shadow:0 20px 60px rgba(0,0,0,.35),inset 0 1px 0 rgba(255,255,255,.07);
  position:sticky;
  top:96px;
}
.timeline-aside h3{font-size:1.05rem;font-weight:600;margin-bottom:14px;}
.aside-list li{
  display:flex;
  gap:10px;
  padding:11px 0;
  border-bottom:1px dashed rgba(255,255,255,.08);
  font-size:14.5px;
  color:var(--muted);
}
.aside-list li:last-child{border-bottom:none;}
.aside-list li strong{color:var(--text);font-weight:600;flex-shrink:0;}
.aside-note{
  margin-top:18px;
  padding:14px 16px;
  border-radius:12px;
  background:rgba(255,107,26,.08);
  border:1px solid rgba(255,107,26,.25);
  font-size:13.5px;
  color:#FFD9BE;
}

/* ---------- Status cards ---------- */
.status-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.status-card{
  padding:26px;
  border-radius:var(--radius-card);
  background:rgba(15,23,42,.62);
  border:1px solid var(--border);
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.status-card:hover{transform:translateY(-3px);box-shadow:0 18px 44px rgba(0,0,0,.4);}
.status-head{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.status-head h3{font-size:1.08rem;font-weight:600;}
.status-card p{color:var(--muted);font-size:14.5px;margin-bottom:14px;}
.status-card ul li{
  position:relative;
  padding-left:16px;
  font-size:14px;
  color:var(--muted);
  margin-bottom:8px;
}
.status-card ul li::before{
  content:"";
  position:absolute;
  left:0;top:10px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--cyan);
  opacity:.75;
}
.status-card.normal{border-color:rgba(163,230,53,.28);}
.status-card.normal .status-dot{background:var(--lime);box-shadow:0 0 12px rgba(163,230,53,.8);}
.status-card.opt{border-color:rgba(255,176,32,.3);}
.status-card.opt .status-dot{background:var(--amber);box-shadow:0 0 12px rgba(255,176,32,.8);}
.status-card.help{border-color:rgba(255,107,26,.32);}
.status-card.help .status-dot{background:var(--brand);box-shadow:0 0 12px rgba(255,107,26,.8);}
.status-dot{width:10px;height:10px;border-radius:50%;display:inline-block;flex-shrink:0;}

/* ---------- Consult form ---------- */
.consult-grid{display:grid;grid-template-columns:1.35fr .8fr;gap:28px;align-items:start;}
.form-panel{
  padding:32px;
  border-radius:20px;
  background:linear-gradient(160deg,rgba(15,23,42,.94),rgba(7,11,20,.86));
  border:1px solid var(--border);
  box-shadow:var(--shadow-card);
}
.form-panel h2{font-size:1.4rem;font-weight:700;margin-bottom:8px;}
.form-panel .form-intro{color:var(--muted);font-size:14.5px;margin-bottom:26px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;color:var(--muted);margin-bottom:8px;}
.field label .req{color:var(--brand);margin-left:4px;}
.field input,.field select,.field textarea{
  width:100%;
  padding:12px 14px;
  border-radius:10px;
  background:rgba(7,11,20,.78);
  border:1px solid var(--border);
  color:var(--text);
  font-size:15px;
  transition:border-color .2s,box-shadow .2s,background .2s;
}
.field textarea{min-height:104px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--weak);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--cyan);
  background:rgba(7,11,20,.95);
  box-shadow:0 0 0 3px rgba(34,211,238,.16);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 15px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:6px;}
.form-hint{font-size:13px;color:var(--weak);}
.form-note{
  display:none;
  margin-top:16px;
  padding:12px 16px;
  border-radius:10px;
  font-size:14px;
  color:var(--lime);
  background:rgba(163,230,53,.08);
  border:1px solid rgba(163,230,53,.3);
}
.form-aside{display:flex;flex-direction:column;gap:18px;}
.aside-card{
  padding:24px;
  border-radius:var(--radius-card);
  background:rgba(15,23,42,.6);
  border:1px solid var(--border);
}
.aside-card h3{font-size:1rem;font-weight:600;margin-bottom:12px;display:flex;align-items:center;gap:8px;}
.aside-card p{font-size:14px;color:var(--muted);}
.aside-card ul li{
  font-size:14px;
  color:var(--muted);
  padding:8px 0;
  border-bottom:1px dashed rgba(255,255,255,.08);
}
.aside-card ul li:last-child{border-bottom:none;}
.aside-card ul li b{color:var(--text);font-weight:600;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  border:1px solid var(--border);
  border-radius:14px;
  background:rgba(15,23,42,.55);
  overflow:hidden;
  transition:border-color .22s,background .22s;
}
.faq-item:hover{background:rgba(15,23,42,.75);}
.faq-item[open]{border-color:rgba(34,211,238,.32);background:rgba(15,23,42,.82);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:18px 22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  font-size:20px;
  font-weight:400;
  color:var(--brand);
  transition:transform .22s,color .22s;
  flex-shrink:0;
}
.faq-item[open] summary::after{content:"–";color:var(--cyan);}
.faq-body{padding:0 22px 20px;color:var(--muted);font-size:15px;line-height:1.8;}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:22px;
  padding:44px 40px;
  background:linear-gradient(120deg,rgba(255,107,26,.16),rgba(34,211,238,.12));
  border:1px solid rgba(255,107,26,.3);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:26px;
}
.cta-band::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.045) 0 2px,transparent 2px 20px);
  opacity:.6;
  pointer-events:none;
}
.cta-band h2{font-size:clamp(1.35rem,2.2vw,1.8rem);font-weight:700;margin-bottom:10px;position:relative;}
.cta-band p{color:#CBD8E8;font-size:15px;max-width:600px;position:relative;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;
  margin-top:20px;
  background:#05080F;
  border-top:1px solid var(--border);
}
.footer-top-line{
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,107,26,.7),rgba(34,211,238,.6),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.15fr;
  gap:36px;
  padding:56px 0 36px;
}
.footer-title{
  font-size:14px;
  font-weight:700;
  color:var(--text);
  letter-spacing:.05em;
  margin-bottom:14px;
}
.footer-link{
  display:block;
  color:var(--muted);
  font-size:14px;
  padding:6px 0;
  transition:color .2s,transform .2s;
}
.footer-link:hover{color:var(--brand);transform:translateX(3px);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:14px;
  padding:20px 0 32px;
  border-top:1px solid var(--border);
  color:var(--weak);
  font-size:13px;
}

/* ---------- Responsive ---------- */
@media (max-width:1200px){
  .hero-inner{gap:40px;}
}
@media (max-width:1023px){
  .nav-main{display:none;}
  .nav-toggle{display:grid;}
  .hero{padding:60px 0 72px;}
  .hero-inner{grid-template-columns:1fr;gap:44px;}
  .hero-stat{left:0;bottom:-20px;}
  .timeline-wrap{grid-template-columns:1fr;gap:34px;}
  .timeline-aside{position:static;}
  .consult-grid{grid-template-columns:1fr;}
  .status-grid{grid-template-columns:1fr;gap:16px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;padding:44px 0 28px;}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  .cover-grid{grid-template-columns:1fr;}
  .strip-inner{grid-template-columns:1fr;gap:14px;padding:20px 0;}
  .field-row{grid-template-columns:1fr;}
  .form-panel{padding:24px 20px;}
  .cta-band{padding:32px 22px;border-radius:18px;}
  .hero h1{font-size:clamp(1.75rem,7.5vw,2.4rem);}
  .hero-sub{font-size:15.5px;}
  .hero-cta .btn{flex:1 1 100%;}
  .section{padding:52px 0;}
  .section-head{margin-bottom:32px;}
  .brand-text{font-size:15px;}
}
@media (max-width:520px){
  .container-x{padding:0 16px;}
  .header-inner{height:64px;gap:14px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{font-size:12.5px;}
  .timeline{padding-left:36px;}
  .tl-dot{left:-36px;width:26px;height:26px;font-size:11px;}
  .tl-item h3{font-size:1rem;}
  .hero-stat{min-width:0;width:100%;position:relative;left:0;bottom:0;margin-top:16px;}
}
@media (min-width:1024px){
  .mobile-panel{display:none !important;}
}

/* roulang page: category4 */
:root{
    --bg:#070B14;
    --bg-2:#0B1220;
    --bg-3:#0F172A;
    --primary:#FF6B1A;
    --primary-2:#FF8A45;
    --cyan:#22D3EE;
    --lime:#A3E635;
    --amber:#FFB020;
    --text:#E8EEF7;
    --muted:#9AA7B8;
    --weak:#64748B;
    --border:rgba(255,255,255,0.08);
    --border-strong:rgba(255,107,26,0.35);
    --glass:rgba(15,23,42,0.55);
    --radius-card:18px;
    --radius-btn:11px;
    --shadow-card:0 20px 60px rgba(0,0,0,0.35);
    --glow-primary:0 0 24px rgba(255,107,26,0.35);
    --glow-cyan:0 0 22px rgba(34,211,238,0.28);
  }

  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
  a:hover{color:var(--cyan);}
  button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
  h1,h2,h3,h4{margin:0;line-height:1.2;letter-spacing:.01em;}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  ::selection{background:rgba(255,107,26,.35);color:#fff;}

  ::-webkit-scrollbar{width:10px;height:10px;}
  ::-webkit-scrollbar-track{background:#070B14;}
  ::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#FF6B1A,#22D3EE);border-radius:99px;border:2px solid #070B14;}

  .container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
  .tabular{font-variant-numeric:tabular-nums;}

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(7,11,20,.82);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--border);
  }
  .header-inner{
    display:flex;align-items:center;gap:24px;
    min-height:72px;
  }
  .logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .brand-mark{
    width:36px;height:36px;border-radius:10px;
    display:flex;align-items:center;justify-content:center;
    background:linear-gradient(135deg,#FF6B1A,#FFB020);
    color:#0B1220;font-weight:800;font-size:18px;
    box-shadow:var(--glow-primary);
  }
  .logo-text{font-weight:800;font-size:17px;letter-spacing:.02em;white-space:nowrap;}
  .nav-main{display:flex;align-items:center;gap:4px;flex:1 1 auto;flex-wrap:wrap;}
  .nav-link{
    padding:8px 12px;border-radius:999px;
    font-size:14px;color:var(--muted);
    border:1px solid transparent;
    transition:all .2s ease;white-space:nowrap;
  }
  .nav-link:hover{color:#fff;background:rgba(255,255,255,.05);}
  .nav-link.active{
    color:var(--primary-2);
    background:rgba(255,107,26,.12);
    border-color:var(--border-strong);
  }
  .header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}

  .mega{position:relative;}
  .mega-trigger{
    display:flex;align-items:center;gap:6px;
    background:rgba(255,255,255,.04);border:1px solid var(--border);
    padding:8px 14px;border-radius:999px;font-size:14px;color:var(--muted);
    cursor:pointer;transition:all .2s ease;
  }
  .mega-trigger:hover{color:#fff;border-color:rgba(34,211,238,.45);}
  .mega-trigger svg{transition:transform .25s ease;}
  .mega-panel{
    position:absolute;right:0;top:calc(100% + 12px);
    width:620px;
    background:rgba(11,18,32,.96);
    backdrop-filter:blur(16px);
    border:1px solid var(--border);
    border-radius:18px;
    padding:22px;
    box-shadow:0 30px 80px rgba(0,0,0,.6), 0 0 0 1px rgba(34,211,238,.08) inset;
    display:grid;grid-template-columns:1.1fr 1fr;gap:22px;
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:all .22s ease;
  }
  .mega:hover .mega-panel,
  .mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
  .mega:hover .mega-trigger svg,
  .mega:focus-within .mega-trigger svg{transform:rotate(180deg);}
  .mega-col-title{font-size:12px;letter-spacing:.12em;color:var(--weak);text-transform:uppercase;margin-bottom:12px;}
  .mega-link{display:block;padding:9px 10px;border-radius:10px;font-size:14px;color:var(--muted);border:1px solid transparent;}
  .mega-link:hover{background:rgba(34,211,238,.08);border-color:rgba(34,211,238,.25);color:#fff;}
  .mega-card{
    background:linear-gradient(140deg,rgba(255,107,26,.16),rgba(15,23,42,.4));
    border:1px solid var(--border-strong);
    border-radius:14px;padding:16px;
  }
  .mega-card h4{font-size:15px;margin-bottom:6px;}
  .mega-card p{font-size:13px;color:var(--muted);}

  .menu-toggle{
    display:none;background:rgba(255,255,255,.05);border:1px solid var(--border);
    border-radius:10px;width:40px;height:40px;cursor:pointer;
    align-items:center;justify-content:center;
  }
  .menu-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative;}
  .menu-toggle span::before,.menu-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);
  }
  .menu-toggle span::before{top:-6px;}
  .menu-toggle span::after{top:6px;}

  .mobile-nav{
    display:none;flex-direction:column;gap:4px;
    padding:12px 24px 20px;border-top:1px solid var(--border);
    background:rgba(7,11,20,.98);
  }
  .mobile-nav.open{display:flex;}
  .mobile-nav a{padding:12px 10px;border-radius:10px;font-size:15px;color:var(--muted);border:1px solid transparent;}
  .mobile-nav a:hover,.mobile-nav a.active{background:rgba(255,107,26,.1);border-color:var(--border-strong);color:var(--primary-2);}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 22px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
    transition:all .2s ease;white-space:nowrap;
  }
  .btn-primary{
    background:linear-gradient(135deg,#FF6B1A,#FF8A45);
    color:#1A0C02;box-shadow:var(--glow-primary);
  }
  .btn-primary:hover{color:#1A0C02;transform:translateY(-2px);box-shadow:0 0 34px rgba(255,107,26,.55);}
  .btn-ghost{
    background:rgba(255,255,255,.03);color:var(--text);
    border-color:rgba(34,211,238,.4);
  }
  .btn-ghost:hover{color:#fff;background:rgba(34,211,238,.12);border-color:rgba(34,211,238,.7);}
  .btn-sm{padding:9px 16px;font-size:14px;}
  .btn-lg{padding:15px 30px;font-size:16px;}
  .btn:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
    outline:2px solid var(--cyan);outline-offset:2px;
  }

  .tag{
    display:inline-flex;align-items:center;
    padding:5px 12px;border-radius:999px;
    font-size:12.5px;color:var(--cyan);
    background:rgba(34,211,238,.1);
    border:1px solid rgba(34,211,238,.28);
  }
  .tag-orange{color:var(--primary-2);background:rgba(255,107,26,.12);border-color:var(--border-strong);}

  .dot{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 10px rgba(163,230,53,.8);display:inline-block;}
  .dot.cyan{background:var(--cyan);box-shadow:0 0 10px rgba(34,211,238,.8);}

  /* ---------- sections ---------- */
  .section{padding:88px 0;}
  .section-tight{padding:64px 0;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;letter-spacing:.16em;color:var(--cyan);
    text-transform:uppercase;margin-bottom:14px;
  }
  .eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent);}
  .h2{font-size:clamp(1.5rem,2.5vw,2rem);font-weight:700;}
  .lead{color:var(--muted);font-size:15.5px;max-width:720px;margin-top:14px;}
  .section-head{margin-bottom:44px;}

  .grid-bg{
    background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                     linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
    background-size:56px 56px;
  }

  /* ---------- hero ---------- */
  .hero{
    position:relative;overflow:hidden;
    background:#070B14;
    border-bottom:1px solid var(--border);
  }
  .hero::before{
    content:"";position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-1.webp');
    background-size:cover;background-position:center;
    opacity:.34;
  }
  .hero::after{
    content:"";position:absolute;inset:0;
    background:
      radial-gradient(900px 420px at 12% 8%,rgba(255,107,26,.22),transparent 62%),
      radial-gradient(700px 420px at 88% 20%,rgba(34,211,238,.16),transparent 60%),
      linear-gradient(180deg,rgba(7,11,20,.72),rgba(7,11,20,.96));
  }
  .hero-inner{position:relative;z-index:2;padding:78px 0 72px;}
  .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
  .hero h1{
    font-size:clamp(2rem,4vw,3.25rem);font-weight:800;line-height:1.15;
    letter-spacing:.005em;
  }
  .hero h1 .accent{
    background:linear-gradient(120deg,#FF6B1A,#FFB020 60%,#22D3EE);
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .hero-sub{color:var(--muted);font-size:16.5px;max-width:600px;margin-top:20px;}
  .hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
  .hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}

  .gallery{
    display:grid;grid-template-columns:1fr 1fr;grid-template-rows:auto auto;gap:14px;
  }
  .gallery figure{
    margin:0;position:relative;overflow:hidden;border-radius:16px;
    border:1px solid var(--border);background:var(--bg-3);
    box-shadow:var(--shadow-card);
  }
  .gallery figure:first-child{grid-row:span 2;}
  .gallery img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
  .gallery figure:hover img{transform:scale(1.05);}
  .gallery figcaption{
    position:absolute;left:0;right:0;bottom:0;
    padding:14px 16px;font-size:13px;color:#E8EEF7;
    background:linear-gradient(180deg,transparent,rgba(7,11,20,.92));
  }

  .stat-row{
    display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
    margin-top:52px;padding:22px 24px;
    border-radius:18px;border:1px solid var(--border);
    background:rgba(15,23,42,.55);
    backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  }
  .stat .num{font-size:22px;font-weight:800;color:var(--primary-2);}
  .stat .num.cyan{color:var(--cyan);}
  .stat .num.lime{color:var(--lime);}
  .stat .num.amber{color:var(--amber);}
  .stat .cap{font-size:13px;color:var(--muted);margin-top:4px;}

  /* ---------- card matrix ---------- */
  .card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .card{
    position:relative;display:flex;flex-direction:column;
    background:rgba(15,23,42,.6);
    border:1px solid var(--border);border-radius:var(--radius-card);
    overflow:hidden;
    transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
  }
  .card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.4);box-shadow:var(--shadow-card);}
  .card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-3);}
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;opacity:.9;}
  .card:hover .card-media img{transform:scale(1.06);opacity:1;}
  .card-media .badge{
    position:absolute;top:12px;left:12px;
    padding:4px 11px;border-radius:999px;font-size:12px;
    background:rgba(7,11,20,.78);border:1px solid var(--border-strong);color:var(--primary-2);
    backdrop-filter:blur(6px);
  }
  .card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
  .card-title{font-size:18px;font-weight:600;}
  .card-text{font-size:14.5px;color:var(--muted);line-height:1.75;}
  .card-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--weak);margin-top:auto;padding-top:6px;}
  .card:hover .card-title{color:var(--cyan);}
  .card-link{font-size:14px;color:var(--primary-2);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
  .card:hover .card-link{gap:10px;}

  /* ---------- steps ---------- */
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative;}
  .steps::before{
    content:"";position:absolute;top:26px;left:6%;right:6%;height:1px;
    background:linear-gradient(90deg,rgba(255,107,26,.5),rgba(34,211,238,.5));
    opacity:.55;
  }
  .step{position:relative;padding-top:0;}
  .step-num{
    width:52px;height:52px;border-radius:14px;
    display:flex;align-items:center;justify-content:center;
    font-weight:800;font-size:18px;
    background:rgba(15,23,42,.9);
    border:1px solid var(--border-strong);
    color:var(--primary-2);
    box-shadow:0 0 22px rgba(255,107,26,.18);
    position:relative;z-index:2;
  }
  .step h3{font-size:17px;font-weight:600;margin-top:18px;}
  .step p{font-size:14px;color:var(--muted);margin-top:8px;}

  /* ---------- compare ---------- */
  .compare-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
  .compare-card{
    border:1px solid var(--border);border-radius:var(--radius-card);
    background:rgba(15,23,42,.5);padding:24px 26px;
    transition:border-color .25s ease,transform .25s ease;
  }
  .compare-card:hover{border-color:rgba(34,211,238,.4);transform:translateY(-2px);}
  .compare-card .symptom{
    font-size:15.5px;font-weight:600;color:var(--amber);
    display:flex;align-items:center;gap:10px;
  }
  .compare-card .symptom::before{
    content:"";width:8px;height:8px;border-radius:50%;
    background:var(--amber);box-shadow:0 0 10px rgba(255,176,32,.8);
    flex:0 0 auto;
  }
  .compare-card ul{margin-top:14px;display:flex;flex-direction:column;gap:10px;}
  .compare-card li{
    font-size:14.5px;color:var(--muted);padding-left:20px;position:relative;line-height:1.7;
  }
  .compare-card li::before{
    content:"";position:absolute;left:0;top:9px;width:8px;height:2px;
    background:var(--cyan);border-radius:2px;
  }

  /* ---------- checklist ---------- */
  .check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
  .check-item{
    display:flex;gap:14px;align-items:flex-start;
    padding:20px 22px;border-radius:16px;
    background:rgba(15,23,42,.45);border:1px solid var(--border);
  }
  .check-item .ico{
    flex:0 0 auto;width:34px;height:34px;border-radius:10px;
    display:flex;align-items:center;justify-content:center;
    background:rgba(163,230,53,.12);border:1px solid rgba(163,230,53,.3);
    color:var(--lime);font-weight:800;font-size:15px;
  }
  .check-item h3{font-size:16px;font-weight:600;}
  .check-item p{font-size:14px;color:var(--muted);margin-top:6px;}

  /* ---------- update list ---------- */
  .update-list{border-top:1px solid var(--border);}
  .update-item{
    display:grid;grid-template-columns:110px 1fr auto;gap:20px;align-items:center;
    padding:20px 4px;border-bottom:1px solid var(--border);
    transition:background .2s ease;
  }
  .update-item:hover{background:rgba(255,255,255,.02);}
  .update-item .date{font-size:13.5px;color:var(--weak);}
  .update-item .title{font-size:15.5px;font-weight:600;}
  .update-item .desc{font-size:13.5px;color:var(--muted);margin-top:4px;}

  /* ---------- cta band ---------- */
  .cta-band{
    position:relative;overflow:hidden;
    border-radius:22px;border:1px solid var(--border-strong);
    background:linear-gradient(120deg,rgba(255,107,26,.18),rgba(11,18,32,.85) 55%,rgba(34,211,238,.14));
    padding:34px 36px;
    display:flex;align-items:center;gap:28px;flex-wrap:wrap;
    box-shadow:0 0 60px rgba(255,107,26,.14) inset;
  }
  .cta-band .countdown{
    display:flex;gap:8px;
  }
  .cta-band .cd-cell{
    min-width:56px;text-align:center;
    background:rgba(7,11,20,.72);border:1px solid var(--border);
    border-radius:12px;padding:8px 10px;
  }
  .cta-band .cd-cell b{display:block;font-size:20px;font-weight:800;color:var(--amber);}
  .cta-band .cd-cell span{font-size:11.5px;color:var(--weak);}

  /* ---------- form ---------- */
  .form-wrap{display:grid;grid-template-columns:1.35fr .65fr;gap:32px;align-items:start;}
  .form-panel{
    background:rgba(15,23,42,.6);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    border:1px solid var(--border);border-radius:20px;
    padding:32px;box-shadow:var(--shadow-card), inset 0 1px 0 rgba(255,255,255,.05);
  }
  .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
  .field{display:flex;flex-direction:column;gap:8px;}
  .field.full{grid-column:1 / -1;}
  .label{font-size:13.5px;color:var(--muted);}
  .label .req{color:var(--primary);margin-left:4px;}
  .input,.select,.textarea{
    width:100%;padding:12px 14px;border-radius:10px;
    background:rgba(7,11,20,.75);
    border:1px solid var(--border);
    color:var(--text);font-size:14.5px;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .textarea{min-height:120px;resize:vertical;line-height:1.7;}
  .input::placeholder,.textarea::placeholder{color:var(--weak);}
  .input:focus,.select:focus,.textarea:focus{
    outline:none;border-color:rgba(34,211,238,.7);box-shadow:0 0 0 3px rgba(34,211,238,.13);
  }
  .hint{font-size:12.5px;color:var(--weak);}
  .side-panel{
    border:1px solid var(--border);border-radius:20px;
    background:rgba(11,18,32,.6);padding:26px;
  }
  .side-panel h3{font-size:16.5px;font-weight:600;}
  .side-list{margin-top:16px;display:flex;flex-direction:column;gap:14px;}
  .side-list li{font-size:14px;color:var(--muted);display:flex;gap:10px;}
  .side-list li b{color:var(--cyan);font-weight:600;flex:0 0 auto;}

  /* ---------- faq ---------- */
  .faq{border-top:1px solid var(--border);}
  .faq-item{border-bottom:1px solid var(--border);}
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:20px;
    padding:22px 6px;font-size:16.5px;font-weight:600;
    transition:background .2s ease,color .2s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::after{
    content:"+";flex:0 0 auto;
    width:28px;height:28px;border-radius:8px;
    display:flex;align-items:center;justify-content:center;
    color:var(--cyan);font-size:18px;font-weight:400;
    border:1px solid rgba(34,211,238,.3);background:rgba(34,211,238,.07);
    transition:transform .25s ease;
  }
  .faq-item[open] summary::after{content:"−";transform:rotate(180deg);}
  .faq-item summary:hover{color:var(--cyan);}
  .faq-answer{padding:0 6px 24px;color:var(--muted);font-size:15px;line-height:1.8;max-width:920px;}

  /* ---------- footer ---------- */
  .site-footer{
    position:relative;margin-top:20px;
    background:linear-gradient(180deg,rgba(11,18,32,.9),#050810);
    border-top:1px solid var(--border);
  }
  .footer-top-line{
    height:1px;
    background:linear-gradient(90deg,transparent,rgba(255,107,26,.6),rgba(34,211,238,.6),transparent);
  }
  .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;
    padding:60px 0 44px;
  }
  .footer-title{font-size:13px;letter-spacing:.1em;color:var(--weak);margin-bottom:16px;text-transform:uppercase;}
  .footer-link{display:block;font-size:14px;color:var(--muted);padding:6px 0;}
  .footer-link:hover{color:var(--cyan);}
  .footer-bottom{
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
    padding:20px 0 34px;border-top:1px solid var(--border);
    font-size:13px;color:var(--weak);
  }
  .brand{display:flex;align-items:center;gap:10px;}
  .brand-text{font-weight:800;font-size:16px;}

  /* ---------- responsive ---------- */
  @media (max-width:1024px){
    .container-x{padding:0 20px;}
    .nav-main{display:none;}
    .menu-toggle{display:flex;}
    .hero-grid{grid-template-columns:1fr;gap:38px;}
    .card-grid{grid-template-columns:repeat(2,1fr);}
    .steps{grid-template-columns:repeat(2,1fr);}
    .steps::before{display:none;}
    .stat-row{grid-template-columns:repeat(2,1fr);gap:22px;}
    .form-wrap{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
    .mega-panel{width:520px;}
  }
  @media (max-width:768px){
    .section{padding:60px 0;}
    .section-tight{padding:48px 0;}
    .hero-inner{padding:56px 0 52px;}
    .card-grid{grid-template-columns:1fr;}
    .compare-grid{grid-template-columns:1fr;}
    .check-list{grid-template-columns:1fr;}
    .form-grid{grid-template-columns:1fr;}
    .form-panel{padding:24px;}
    .cta-band{padding:26px 22px;gap:18px;}
    .update-item{grid-template-columns:1fr;gap:6px;}
    .mega{display:none;}
  }
  @media (max-width:520px){
    .container-x{padding:0 16px;}
    .logo-text{font-size:15px;}
    .hero-cta .btn{width:100%;}
    .gallery{grid-template-columns:1fr;}
    .gallery figure:first-child{grid-row:auto;}
    .stat-row{grid-template-columns:1fr 1fr;padding:18px;}
    .steps{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;}
    .header-actions .btn{display:none;}
    .footer-bottom{flex-direction:column;}
  }