/* roulang page: index */
:root{
    --bg-0:#070B16;
    --bg-1:#0C1424;
    --bg-2:#101A2E;
    --surface:rgba(255,255,255,.04);
    --line:rgba(120,220,200,.14);
    --line-strong:rgba(120,220,200,.28);
    --primary:#2BE3B0;
    --primary-deep:#12A886;
    --violet:#6C5CFF;
    --alert:#FF7A45;
    --text-1:#ECF3F8;
    --text-2:#9FB0C4;
    --text-3:#6B7C92;
    --r-card:16px;
    --r-btn:12px;
    --shadow-card:0 1px 0 rgba(255,255,255,.04) inset, 0 18px 40px -22px rgba(0,0,0,.8);
    --ease:cubic-bezier(.2,.7,.3,1);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg-0);
    color:var(--text-2);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.85;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:0;
    background:
      radial-gradient(760px 420px at 12% -6%, rgba(43,227,176,.10), transparent 62%),
      radial-gradient(620px 380px at 96% 8%, rgba(108,92,255,.09), transparent 60%);
  }
  img{max-width:100%;display:block;border-style:none}
  a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
  button,input{font-family:inherit}
  h1,h2,h3,h4{color:var(--text-1);margin:0;font-weight:700;letter-spacing:-.01em}
  p{margin:0}
  ul{margin:0;padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
  .section{padding:80px 0}
  .section-tight{padding:56px 0}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;letter-spacing:.14em;color:var(--primary);
    text-transform:uppercase;font-weight:600;
  }
  .eyebrow::before{content:"";width:18px;height:1px;background:var(--primary);opacity:.8}
  .sec-title{font-size:clamp(22px,2.6vw,32px);line-height:1.25;font-weight:700}
  .sec-desc{margin-top:12px;font-size:15px;color:var(--text-2);max-width:62ch}
  .title-bar{position:relative;padding-left:16px}
  .title-bar::before{
    content:"";position:absolute;left:0;top:.22em;width:4px;height:20px;
    border-radius:2px;background:var(--primary);box-shadow:0 0 18px rgba(43,227,176,.6);
  }
  /* ---------- 倒计时条 ---------- */
  .topbar{
    background:linear-gradient(90deg,rgba(43,227,176,.10),rgba(108,92,255,.10));
    border-bottom:1px solid var(--line);
    font-size:13px;
  }
  .topbar-inner{
    min-height:44px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  }
  .topbar-note{color:var(--text-2);display:flex;align-items:center;gap:8px}
  .topbar-note i{color:var(--alert)}
  .countdown{display:flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
  .countdown .num{
    color:var(--text-1);font-size:19px;font-weight:700;
    background:var(--surface);border:1px solid var(--line);border-radius:8px;
    padding:1px 8px;text-shadow:0 0 16px rgba(43,227,176,.45);
  }
  .countdown .colon{color:var(--primary);animation:blink 1s steps(1,end) infinite}
  @keyframes blink{0%,49%{opacity:1}50%,100%{opacity:.25}}
  .btn-mini{
    display:inline-flex;align-items:center;gap:6px;
    border:1px solid var(--line-strong);border-radius:999px;
    padding:4px 14px;font-size:12.5px;color:var(--text-1);
    background:transparent;transition:all .2s var(--ease);
  }
  .btn-mini:hover{border-color:var(--primary);color:var(--primary);background:rgba(43,227,176,.08)}
  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(7,11,22,.72);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
    transition:height .2s var(--ease),background .2s var(--ease);
  }
  .nav-row{
    display:flex;align-items:center;gap:24px;
    min-height:72px;transition:min-height .2s var(--ease);
  }
  .site-header.is-scrolled{background:rgba(7,11,22,.88)}
  .site-header.is-scrolled .nav-row{min-height:64px}
  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .brand-mark{
    width:38px;height:38px;border-radius:11px;
    background:linear-gradient(140deg,var(--primary),var(--primary-deep));
    display:grid;place-items:center;color:#04211A;font-weight:800;font-size:15px;
    box-shadow:0 8px 24px -10px rgba(43,227,176,.8);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.15}
  .brand-name{font-size:17px;font-weight:800;color:var(--text-1);letter-spacing:-.01em;white-space:nowrap}
  .brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.1em}
  .nav-search{
    flex:1 1 auto;max-width:560px;min-width:280px;position:relative;
  }
  .search-shell{
    display:flex;align-items:center;gap:10px;
    background:var(--surface);border:1px solid var(--line);
    border-radius:999px;padding:6px 6px 6px 18px;
    transition:all .2s var(--ease);
  }
  .search-shell:focus-within{
    border-color:var(--primary);
    box-shadow:0 0 0 3px rgba(43,227,176,.16),0 0 26px -8px rgba(43,227,176,.7);
  }
  .search-shell i{color:var(--text-3);font-size:14px;transition:color .2s var(--ease)}
  .search-shell:focus-within i{color:var(--primary)}
  .search-shell input{
    flex:1;background:transparent;border:0;outline:none;color:var(--text-1);
    font-size:14.5px;padding:8px 0;
  }
  .search-shell input::placeholder{color:var(--text-3)}
  .search-submit{
    border:0;cursor:pointer;border-radius:999px;padding:8px 20px;
    font-size:13.5px;font-weight:600;color:#04211A;
    background:linear-gradient(120deg,var(--primary),var(--primary-deep));
    box-shadow:0 8px 26px -10px rgba(43,227,176,.85);
    transition:all .2s var(--ease);
  }
  .search-submit:hover{filter:brightness(1.07);box-shadow:0 10px 32px -10px rgba(43,227,176,1)}
  .search-submit:active{transform:translateY(1px)}
  .search-panel{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    background:rgba(12,20,36,.96);backdrop-filter:blur(12px);
    border:1px solid var(--line);border-radius:16px;padding:16px 18px;
    box-shadow:0 26px 60px -28px rgba(0,0,0,.95);
    display:none;z-index:70;
  }
  .search-panel.open{display:block}
  .panel-label{font-size:12px;color:var(--text-3);letter-spacing:.08em;margin-bottom:10px}
  .chips{display:flex;flex-wrap:wrap;gap:8px}
  .chip{
    font-size:12.5px;color:var(--text-2);border:1px solid var(--line);
    border-radius:999px;padding:4px 12px;transition:all .2s var(--ease);cursor:pointer;
  }
  .chip:hover{color:var(--primary);border-color:var(--line-strong);background:rgba(43,227,176,.08)}
  .nav-links{display:flex;align-items:center;gap:22px;flex:0 0 auto}
  .nav-links a{font-size:15px;color:var(--text-2);position:relative;padding:6px 0;white-space:nowrap}
  .nav-links a::after{
    content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;border-radius:2px;
    background:var(--primary);transition:right .22s var(--ease);
  }
  .nav-links a:hover{color:var(--text-1)}
  .nav-links a:hover::after{right:0}
  .nav-links a.active{color:var(--primary)}
  .nav-links a.active::after{right:0}
  .nav-cta{
    display:inline-flex;align-items:center;gap:7px;
    padding:9px 18px;border-radius:var(--r-btn);font-size:14px;font-weight:600;color:#04211A;
    background:linear-gradient(120deg,var(--primary),var(--primary-deep));
    box-shadow:0 8px 28px -10px rgba(43,227,176,.9);
    transition:all .2s var(--ease);white-space:nowrap;
  }
  .nav-cta:hover{filter:brightness(1.07);box-shadow:0 12px 34px -10px rgba(43,227,176,1)}
  .nav-cta:active{transform:translateY(1px)}
  .nav-toggle{
    display:none;background:var(--surface);border:1px solid var(--line);
    color:var(--text-1);width:42px;height:42px;border-radius:12px;cursor:pointer;font-size:16px;
  }
  .mobile-drawer{
    display:none;border-top:1px solid var(--line);background:rgba(7,11,22,.97);padding:18px 24px 24px;
  }
  .mobile-drawer.open{display:block}
  .mobile-drawer a{display:block;padding:12px 0;font-size:15px;color:var(--text-2);border-bottom:1px solid rgba(255,255,255,.05)}
  .mobile-drawer a.active{color:var(--primary)}
  .mobile-search{display:none;padding:12px 24px 0}
  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
    cursor:pointer;border:1px solid transparent;transition:all .2s var(--ease);
  }
  .btn-primary{
    color:#04211A;
    background:linear-gradient(120deg,var(--primary),var(--primary-deep));
    box-shadow:0 10px 32px -10px rgba(43,227,176,.85);
  }
  .btn-primary:hover{filter:brightness(1.07);box-shadow:0 14px 40px -10px rgba(43,227,176,1)}
  .btn-primary:active{transform:translateY(1px)}
  .btn-ghost{
    color:var(--text-1);background:var(--surface);border-color:var(--line);
  }
  .btn-ghost:hover{border-color:var(--line-strong);background:rgba(255,255,255,.07)}
  .btn-ghost:active{transform:translateY(1px)}
  .btn-outline{
    color:var(--primary);background:transparent;border-color:var(--line-strong);
  }
  .btn-outline:hover{background:rgba(43,227,176,.08);border-color:var(--primary)}
  .btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}
  /* ---------- Hero ---------- */
  .hero{position:relative;padding:72px 0 76px;overflow:hidden}
  .hero::before{
    content:"";position:absolute;inset:0;z-index:0;opacity:.5;
    background-image:linear-gradient(rgba(120,220,200,.05) 1px,transparent 1px),
                     linear-gradient(90deg,rgba(120,220,200,.05) 1px,transparent 1px);
    background-size:56px 56px;
    mask-image:radial-gradient(circle at 30% 20%,#000 12%,transparent 72%);
  }
  .hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;position:relative;z-index:1}
  .hero h1{font-size:clamp(30px,4.2vw,52px);line-height:1.15;font-weight:800;letter-spacing:-.01em}
  .hero h1 em{font-style:normal;color:var(--primary);text-shadow:0 0 34px rgba(43,227,176,.4)}
  .hero-sub{margin-top:20px;font-size:16px;line-height:1.85;color:var(--text-2);max-width:52ch}
  .hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px}
  .hero-pills{margin-top:28px;display:flex;flex-wrap:wrap;gap:10px}
  .pill{
    display:inline-flex;align-items:center;gap:7px;
    font-size:12.5px;color:var(--text-2);
    border:1px solid var(--line);border-radius:999px;padding:5px 14px;
    background:var(--surface);
  }
  .pill i{color:var(--primary);font-size:11px}
  .hero-visual{position:relative}
  .hero-media{
    position:relative;border-radius:18px;overflow:hidden;
    border:1px solid var(--line);box-shadow:var(--shadow-card);
  }
  .hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s var(--ease)}
  .hero-media:hover img{transform:scale(1.03)}
  .hero-media::after{
    content:"";position:absolute;inset:auto 0 0 0;height:40%;
    background:linear-gradient(to top,rgba(7,11,22,.92),transparent);
  }
  .float-card{
    position:absolute;top:-16px;right:-14px;z-index:3;
    background:rgba(12,20,36,.9);backdrop-filter:blur(12px);
    border:1px solid var(--line);border-radius:14px;
    padding:12px 16px;transform:translateY(-8px);
    box-shadow:0 24px 50px -24px rgba(0,0,0,.95);
    animation:floaty 5s ease-in-out infinite;
  }
  @keyframes floaty{0%,100%{transform:translateY(-8px)}50%{transform:translateY(-16px)}}
  .float-card .tag{font-size:11px;color:var(--primary);letter-spacing:.08em}
  .float-card .txt{font-size:13px;color:var(--text-1);margin-top:4px}
  /* ---------- 通用卡片 ---------- */
  .card{
    background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-card);transition:all .22s var(--ease);
  }
  .card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
  .card-cover{position:relative;overflow:hidden;border-radius:14px}
  .card-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .25s var(--ease)}
  .card:hover .card-cover img{transform:scale(1.04)}
  .badge{
    display:inline-flex;align-items:center;
    height:23px;padding:0 10px;border-radius:999px;
    font-size:11.5px;font-weight:600;line-height:1;
  }
  .badge-violet{color:#CFC9FF;background:rgba(108,92,255,.16);border:1px solid rgba(108,92,255,.36)}
  .badge-elec{color:var(--primary);background:rgba(43,227,176,.12);border:1px solid rgba(43,227,176,.3)}
  .badge-alert{color:var(--alert);background:rgba(255,122,69,.12);border:1px solid rgba(255,122,69,.34)}
  /* ---------- 卖点 2x2 交错 ---------- */
  .feat-row{
    display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
    padding:34px 0;border-top:1px solid rgba(255,255,255,.05);
  }
  .feat-row:first-child{border-top:0;padding-top:0}
  .feat-row.rev .feat-media{order:2}
  .feat-num{
    font-size:46px;font-weight:800;line-height:1;
    color:transparent;-webkit-text-stroke:1px rgba(43,227,176,.5);
    letter-spacing:-.02em;
  }
  .feat-title{font-size:20px;margin-top:12px}
  .feat-text{margin-top:10px;font-size:15px;color:var(--text-2)}
  .feat-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:16px;border:1px solid var(--line)}
  /* ---------- 图墙 ---------- */
  .wall{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
  .wall-item{
    position:relative;overflow:hidden;border-radius:14px;border:1px solid var(--line);
    background:var(--bg-2);cursor:pointer;
  }
  .wall-item img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .28s var(--ease)}
  .wall-item:hover img{transform:scale(1.04)}
  .wall-item.big{grid-column:span 2;grid-row:span 2}
  .wall-item.big img{aspect-ratio:16/13}
  .wall-mask{
    position:absolute;inset:auto 0 0 0;padding:16px;
    background:linear-gradient(to top,rgba(7,11,22,.94),rgba(7,11,22,.05));
    opacity:0;transform:translateY(10px);transition:all .25s var(--ease);
  }
  .wall-item:hover .wall-mask{opacity:1;transform:translateY(0)}
  .wall-mask .t{font-size:14.5px;color:var(--text-1);font-weight:600}
  .wall-mask .row{display:flex;align-items:center;gap:8px;margin-top:8px}
  .wall-arrow{margin-left:auto;color:var(--primary);font-size:13px}
  /* ---------- 排行表 ---------- */
  .rank-table{
    width:100%;border-collapse:collapse;font-size:14px;
  }
  .rank-table thead th{
    text-align:left;font-size:12.5px;font-weight:600;letter-spacing:.06em;
    color:var(--text-3);background:var(--bg-2);padding:12px 16px;
    border-bottom:1px solid var(--line);
  }
  .rank-table thead th:first-child{border-radius:12px 0 0 0}
  .rank-table thead th:last-child{border-radius:0 12px 0 0}
  .rank-table tbody td{padding:14px 16px;border-bottom:1px solid rgba(255,255,255,.05);color:var(--text-2)}
  .rank-table tbody tr:nth-child(even){background:rgba(255,255,255,.03)}
  .rank-table tbody tr:hover{background:rgba(43,227,176,.05)}
  .rank-no{
    display:inline-grid;place-items:center;width:24px;height:24px;border-radius:8px;
    font-size:12px;font-weight:700;color:var(--text-2);background:var(--surface);border:1px solid var(--line);
  }
  .rank-no.top{color:#04211A;background:linear-gradient(120deg,var(--primary),var(--primary-deep));border-color:transparent}
  .rank-name{color:var(--text-1);font-weight:600}
  .stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
  .stat{padding:22px;border-radius:var(--r-card);background:var(--bg-2);border:1px solid var(--line)}
  .stat .v{font-size:28px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums}
  .stat .k{font-size:13px;color:var(--text-3);margin-top:6px}
  /* ---------- 流程 ---------- */
  .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
  .step{
    position:relative;padding:26px 22px;border-radius:var(--r-card);
    background:var(--bg-1);border:1px solid var(--line);
  }
  .step .idx{
    font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--primary);
  }
  .step h3{font-size:17px;margin-top:12px}
  .step p{margin-top:8px;font-size:14px;color:var(--text-2)}
  /* ---------- CTA 通栏 ---------- */
  .cta-band{
    background:rgba(255,255,255,.04);backdrop-filter:blur(12px);
    border:1px solid var(--line);border-radius:20px;
    padding:40px;display:grid;grid-template-columns:6fr 4fr;gap:40px;align-items:center;
    box-shadow:var(--shadow-card);
  }
  .cta-band h2{font-size:clamp(20px,2.4vw,28px)}
  .cta-band .desc{margin-top:12px;font-size:15px;color:var(--text-2)}
  .form-row{display:flex;gap:12px;margin-top:20px;flex-wrap:wrap}
  .input{
    flex:1;min-width:220px;height:46px;border-radius:10px;
    background:rgba(255,255,255,.04);border:1px solid var(--line);
    color:var(--text-1);padding:0 16px;font-size:14.5px;outline:none;
    transition:all .2s var(--ease);
  }
  .input::placeholder{color:var(--text-3)}
  .input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,227,176,.14)}
  .input.error{border-color:var(--alert);box-shadow:0 0 0 3px rgba(255,122,69,.14)}
  .check-row{display:flex;align-items:center;gap:10px;margin-top:14px;font-size:13px;color:var(--text-3)}
  .check-row input{
    appearance:none;width:18px;height:18px;border-radius:5px;flex:0 0 auto;
    border:1px solid var(--line-strong);background:rgba(255,255,255,.03);
    cursor:pointer;position:relative;transition:all .18s var(--ease);
  }
  .check-row input:checked{background:var(--primary);border-color:var(--primary)}
  .check-row input:checked::after{
    content:"";position:absolute;left:5px;top:1px;width:6px;height:11px;
    border:solid #04211A;border-width:0 2px 2px 0;transform:rotate(45deg);
  }
  .form-msg{margin-top:10px;font-size:13px;min-height:20px}
  .form-msg.err{color:var(--alert)}
  .form-msg.ok{color:var(--primary)}
  .qr-box{
    aspect-ratio:1/1;border-radius:16px;border:1px solid var(--line);
    background:
      linear-gradient(rgba(43,227,176,.06),rgba(108,92,255,.06)),
      repeating-linear-gradient(45deg,rgba(255,255,255,.03) 0 8px,transparent 8px 16px);
    display:grid;place-items:center;text-align:center;padding:20px;
  }
  .qr-box .wm{font-size:15px;font-weight:700;color:var(--text-1);opacity:.75}
  .qr-box .sub{font-size:12.5px;color:var(--text-3);margin-top:8px}
  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:860px;margin:0 auto}
  .faq-item{border-top:1px solid rgba(255,255,255,.07)}
  .faq-item:last-child{border-bottom:1px solid rgba(255,255,255,.07)}
  .faq-q{
    width:100%;background:transparent;border:0;cursor:pointer;text-align:left;
    display:flex;align-items:center;gap:16px;padding:20px 4px;
    font-size:16px;font-weight:600;color:var(--text-1);
  }
  .faq-q:hover{color:var(--primary)}
  .faq-icon{
    margin-left:auto;flex:0 0 auto;width:26px;height:26px;border-radius:999px;
    border:1px solid var(--line-strong);display:grid;place-items:center;
    color:var(--primary);font-size:13px;transition:transform .2s var(--ease);
  }
  .faq-item.open .faq-icon{transform:rotate(45deg)}
  .faq-a{
    max-height:0;overflow:hidden;transition:max-height .22s var(--ease);
  }
  .faq-a p{padding:0 44px 20px 4px;font-size:15px;line-height:1.9;color:var(--text-2)}
  /* ---------- 最新信息 ---------- */
  .news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
  .news-card{
    background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
    padding:16px;box-shadow:var(--shadow-card);transition:all .22s var(--ease);
    display:flex;flex-direction:column;
  }
  .news-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
  .news-title{
    font-size:17px;font-weight:600;color:var(--text-1);margin-top:14px;line-height:1.5;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .news-desc{
    margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.75;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .news-meta{
    margin-top:auto;padding-top:16px;display:flex;align-items:center;gap:12px;
    font-size:12.5px;color:var(--text-3);border-top:1px solid rgba(255,255,255,.05);
  }
  .news-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3)}
  .empty-state{
    display:grid;place-items:center;gap:14px;text-align:center;
    padding:52px 24px;border-radius:var(--r-card);
    background:var(--surface);border:1px solid var(--line);
  }
  .empty-state i{font-size:26px;color:var(--text-3)}
  .empty-state .txt{font-size:14.5px;color:var(--text-2)}
  .more-link{font-size:14px;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
  .more-link:hover{text-decoration:underline;text-underline-offset:4px}
  /* ---------- 页脚 ---------- */
  .site-footer{
    margin-top:40px;border-top:1px solid var(--line);
    background:linear-gradient(180deg,rgba(12,20,36,.6),rgba(7,11,22,1));
    padding:60px 0 26px;
  }
  .foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
  .foot-title{font-size:14px;color:var(--text-1);font-weight:600;margin-bottom:16px}
  .foot-list li{margin-bottom:10px}
  .foot-list a{font-size:14px;color:var(--text-2)}
  .foot-list a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
  .foot-brand p{margin-top:14px;font-size:14px;color:var(--text-2);max-width:30ch}
  .foot-bottom{
    margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.06);
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:var(--text-3);
  }
  /* ---------- 动效 ---------- */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .3s var(--ease),transform .3s var(--ease)}
  .reveal.in{opacity:1;transform:none}
  @media (prefers-reduced-motion:reduce){
    .reveal{opacity:1;transform:none;transition:none}
    .float-card{animation:none}
    .countdown .colon{animation:none}
    html{scroll-behavior:auto}
  }
  /* ---------- 响应式 ---------- */
  @media (max-width:1280px){
    .nav-links{gap:16px}
    .nav-links a{font-size:14px}
  }
  @media (max-width:1024px){
    .section{padding:64px 0}
    .nav-search{max-width:420px;min-width:200px}
    .nav-links{display:none}
    .nav-toggle{display:grid;place-items:center}
    .hero-grid{grid-template-columns:1fr;gap:36px}
    .hero-visual{order:-1}
    .feat-row{grid-template-columns:1fr;gap:22px}
    .feat-row.rev .feat-media{order:0}
    .wall{grid-template-columns:repeat(3,1fr)}
    .stat-grid{grid-template-columns:repeat(2,1fr)}
    .steps{grid-template-columns:1fr 1fr}
    .cta-band{grid-template-columns:1fr;padding:32px}
    .news-grid{grid-template-columns:repeat(2,1fr)}
    .foot-grid{grid-template-columns:1fr 1fr}
  }
  @media (max-width:768px){
    .container{padding:0 20px}
    .nav-search{display:none}
    .mobile-search{display:block}
    .mobile-search .search-shell{width:100%}
    .topbar-note{display:none}
    .wall{grid-template-columns:repeat(2,1fr)}
    .wall-item.big{grid-column:span 2;grid-row:span 1}
    .steps{grid-template-columns:1fr}
    .news-grid{grid-template-columns:1fr}
    .cta-band{padding:26px 20px}
  }
  @media (max-width:520px){
    .container{padding:0 16px}
    .hero{padding:48px 0 56px}
    .section{padding:48px 0}
    .stat-grid{grid-template-columns:1fr 1fr;gap:12px}
    .foot-grid{grid-template-columns:1fr}
    .hero-actions .btn{width:100%}
    .form-row .btn{width:100%}
    .wall{grid-template-columns:repeat(2,1fr);gap:12px}
    .rank-table{font-size:13px}
    .rank-table thead th,.rank-table tbody td{padding:10px 10px}
  }

/* roulang page: article */
:root{
  --bg-0:#070B16;
  --bg-1:#0C1424;
  --bg-2:#101A2E;
  --surface:rgba(255,255,255,.04);
  --line:rgba(120,220,200,.14);
  --line-strong:rgba(120,220,200,.28);
  --primary:#2BE3B0;
  --primary-deep:#12A886;
  --violet:#6C5CFF;
  --alert:#FF7A45;
  --text-1:#ECF3F8;
  --text-2:#9FB0C4;
  --text-3:#6B7C92;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-pill:999px;
  --shadow-card:0 1px 0 rgba(255,255,255,.04) inset,0 18px 40px -22px rgba(0,0,0,.8);
  --shadow-glow:0 8px 30px -8px rgba(43,227,176,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:15px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease)}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;line-height:1.25}
p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
::selection{background:rgba(43,227,176,.28);color:#fff}
.container{width:100%;max-width:var(--container);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(7,11,22,.82);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:height .22s var(--ease),background .22s var(--ease);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:68px;padding-top:10px;padding-bottom:10px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;letter-spacing:.02em;color:#04170f;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-deep) 100%);
  box-shadow:var(--shadow-glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:800;color:var(--text-1);letter-spacing:-.01em}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.06em}
.nav-search{
  position:relative;flex:1 1 auto;max-width:560px;min-width:220px;
}
.search-box{
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 6px 0 16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,227,176,.16)}
.search-box i{color:var(--text-3);font-size:14px;transition:color .2s var(--ease)}
.search-box:focus-within i{color:var(--primary)}
.search-box input{
  flex:1;min-width:0;height:100%;background:transparent;border:0;outline:none;
  font-size:14px;color:var(--text-1);
}
.search-box input::placeholder{color:var(--text-3)}
.search-btn{
  height:34px;padding:0 16px;border-radius:var(--radius-pill);
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04170f;font-size:13px;font-weight:700;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.search-btn:hover{box-shadow:var(--shadow-glow)}
.search-btn:active{transform:translateY(1px)}
.search-panel{
  position:absolute;top:calc(100% + 10px);left:0;right:0;
  display:none;padding:18px;
  background:rgba(12,20,36,.96);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  z-index:70;
}
.search-panel.open{display:block}
.panel-label{font-size:12px;color:var(--text-3);margin-bottom:10px;letter-spacing:.05em}
.chip-row{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:var(--radius-pill);border:1px solid var(--line);
  font-size:12.5px;color:var(--text-2);background:rgba(108,92,255,.08);
  transition:all .18s var(--ease);
}
.chip:hover{border-color:var(--line-strong);color:var(--text-1);background:rgba(43,227,176,.12)}
.search-empty{
  margin-top:14px;padding:16px;text-align:center;font-size:13px;color:var(--text-3);
  border-top:1px dashed var(--line);
}
.nav-links{display:flex;align-items:center;gap:22px;flex-shrink:0}
.nav-links a{
  position:relative;font-size:15px;color:var(--text-2);white-space:nowrap;
  padding:6px 0;transition:color .2s var(--ease);
}
.nav-links a:hover{color:var(--primary)}
.nav-links a.active{color:var(--text-1);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--violet));
}
.nav-cta{
  display:inline-flex;align-items:center;gap:7px;
  height:38px;padding:0 18px;border-radius:var(--radius-btn);
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04170f !important;font-size:14px;font-weight:700;
  box-shadow:var(--shadow-glow);
  transition:filter .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.nav-cta:hover{filter:brightness(1.06);box-shadow:0 10px 36px -8px rgba(43,227,176,.75)}
.nav-cta:active{transform:translateY(1px);box-shadow:0 6px 20px -10px rgba(43,227,176,.5)}
.nav-icon-btn{
  display:none;width:42px;height:42px;border-radius:12px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--surface);color:var(--text-2);
}
.nav-icon-btn:hover{color:var(--primary);border-color:var(--line-strong)}
.mobile-drawer{
  display:none;position:fixed;inset:0;z-index:90;
  background:rgba(4,8,16,.72);backdrop-filter:blur(4px);
}
.mobile-drawer.open{display:block}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:var(--bg-1);border-left:1px solid var(--line);
  padding:22px 20px;overflow-y:auto;
  display:flex;flex-direction:column;gap:8px;
  animation:drawerIn .24s var(--ease);
}
@keyframes drawerIn{from{transform:translateX(24px);opacity:.4}to{transform:translateX(0);opacity:1}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer-head span{font-size:13px;color:var(--text-3);letter-spacing:.08em}
.drawer-panel a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 14px;border-radius:12px;font-size:15px;color:var(--text-1);
  border:1px solid transparent;
}
.drawer-panel a:hover{background:var(--surface);border-color:var(--line)}
.drawer-panel a.active{border-color:var(--line-strong);background:rgba(43,227,176,.08)}
.mobile-search-layer{
  display:none;position:fixed;top:0;left:0;right:0;z-index:95;
  background:var(--bg-1);border-bottom:1px solid var(--line);
  padding:16px;box-shadow:var(--shadow-card);
}
.mobile-search-layer.open{display:block}

/* ============ 面包屑 ============ */
.crumb-bar{padding:22px 0 6px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{opacity:.5}
.crumb .current{color:var(--text-2);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 316px;
  gap:40px;padding:24px 0 72px;align-items:start;
}
.article-main{min-width:0}
.article-head{
  padding:26px 28px;border-radius:var(--radius-card);
  background:linear-gradient(160deg,rgba(16,26,46,.95),rgba(12,20,36,.95));
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  position:relative;overflow:hidden;
}
.article-head::before{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,227,176,.12),transparent 68%);
  pointer-events:none;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 12px;
  border-radius:var(--radius-pill);font-size:11.5px;font-weight:600;letter-spacing:.03em;
}
.badge-violet{background:rgba(108,92,255,.16);color:#B9B1FF;border:1px solid rgba(108,92,255,.34)}
.badge-primary{background:rgba(43,227,176,.13);color:var(--primary);border:1px solid rgba(43,227,176,.3)}
.badge-alert{background:rgba(255,122,69,.14);color:#FFB08C;border:1px solid rgba(255,122,69,.32)}
.article-title{
  margin-top:16px;
  font-size:clamp(24px,3.2vw,38px);line-height:1.25;font-weight:800;letter-spacing:-.01em;
  color:var(--text-1);
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:18px;font-size:13px;color:var(--text-3);
}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-row .divider{width:1px;height:12px;background:var(--line);display:inline-block}
.head-actions{display:flex;gap:10px;margin-top:20px}
.ghost-btn{
  display:inline-flex;align-items:center;gap:7px;height:36px;padding:0 16px;
  border-radius:var(--radius-btn);border:1px solid var(--line);
  background:var(--surface);color:var(--text-2);font-size:13.5px;
  transition:all .18s var(--ease);
}
.ghost-btn:hover{border-color:var(--line-strong);color:var(--text-1);background:rgba(255,255,255,.07)}
.ghost-btn:active{transform:translateY(1px)}

.article-body{
  margin-top:22px;padding:32px 34px;
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
}
.article-body h2{
  position:relative;margin:38px 0 16px;padding-left:14px;
  font-size:clamp(19px,2.2vw,24px);font-weight:700;color:var(--text-1);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:20px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--primary-deep));
}
.article-body h2:first-child{margin-top:0}
.article-body h3{margin:26px 0 12px;font-size:18px;font-weight:600;color:var(--text-1)}
.article-body p{margin:0 0 1.05em;font-size:16.5px;line-height:1.9;color:var(--text-2)}
.article-body strong{color:var(--text-1);font-weight:600}
.article-body em{color:var(--primary);font-style:normal}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(43,227,176,.35)}
.article-body a:hover{border-bottom-color:var(--primary)}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:0}
.article-body ul li,.article-body ol li{
  position:relative;padding-left:22px;margin-bottom:8px;
  font-size:16px;line-height:1.85;color:var(--text-2);
}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:6px;height:6px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 8px rgba(43,227,176,.7);
}
.article-body ol{counter-reset:cmslist}
.article-body ol li{counter-increment:cmslist}
.article-body ol li::before{
  content:counter(cmslist);position:absolute;left:0;top:.28em;
  width:18px;height:18px;border-radius:6px;font-size:11px;font-weight:700;color:#04170f;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:20px 0;padding:16px 20px;
  border-left:3px solid var(--primary);border-radius:0 12px 12px 0;
  background:rgba(255,255,255,.035);color:var(--text-2);font-size:15.5px;
}
.article-body blockquote p{margin:0;font-size:15.5px}
.article-body img{
  width:100%;height:auto;border-radius:12px;margin:18px 0 10px;
  background:var(--bg-2);
}
.article-body figure{margin:20px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px}
.article-body table{
  width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.article-body thead th{
  background:var(--bg-2);color:var(--text-1);font-weight:600;
  text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);
}
.article-body tbody td{padding:12px 14px;border-bottom:1px solid rgba(120,220,200,.08);color:var(--text-2)}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.03)}
.article-body tbody tr:last-child td{border-bottom:0}

.empty-state{
  padding:52px 24px;text-align:center;border-radius:var(--radius-card);
  background:var(--bg-2);border:1px dashed var(--line);
}
.empty-state i{font-size:32px;color:var(--text-3)}
.empty-state p{margin:14px 0 18px;font-size:15px;color:var(--text-2)}
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-btn);
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04170f;font-size:15px;font-weight:700;
  box-shadow:var(--shadow-glow);
  transition:filter .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 12px 40px -8px rgba(43,227,176,.75)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 20px -10px rgba(43,227,176,.5)}
.btn-outline{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:var(--surface);
  color:var(--text-1);font-size:15px;font-weight:600;
  transition:all .18s var(--ease);
}
.btn-outline:hover{border-color:var(--line-strong);background:rgba(255,255,255,.07)}

/* 标签 */
.tag-block{margin-top:24px;display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag-block .tag-label{font-size:13px;color:var(--text-3);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--radius-pill);font-size:12.5px;
  background:rgba(43,227,176,.1);border:1px solid rgba(43,227,176,.24);color:#8FF0D6;
  transition:all .18s var(--ease);
}
.tag:hover{background:rgba(43,227,176,.18);border-color:var(--line-strong);color:#BFF7E7}

/* 上/下篇 */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:30px}
.post-card{
  display:block;padding:18px 20px;border-radius:var(--radius-card);
  background:var(--bg-1);border:1px solid var(--line);
  transition:all .2s var(--ease);
}
.post-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-card)}
.post-card .p-label{font-size:12px;color:var(--text-3);display:flex;align-items:center;gap:6px}
.post-card .p-title{
  margin-top:8px;font-size:15px;font-weight:600;color:var(--text-1);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.post-card.next{text-align:right}
.post-card.next .p-label{justify-content:flex-end}

/* 相关推荐 */
.section-block{margin-top:52px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.section-head h2{font-size:clamp(20px,2.4vw,26px);font-weight:700}
.section-head .more-link{font-size:14px;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.section-head .more-link:hover{text-decoration:underline;text-underline-offset:3px}
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rec-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.rec-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.rec-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-1)}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s var(--ease)}
.rec-card:hover .rec-thumb img{transform:scale(1.04)}
.rec-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(7,11,22,.7) 100%);
}
.rec-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-body h3{
  font-size:16.5px;font-weight:600;line-height:1.5;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-body p{
  font-size:13.5px;line-height:1.75;color:var(--text-3);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-3)}

/* CTA 通栏 */
.cta-banner{
  margin-top:56px;padding:34px 36px;border-radius:20px;
  display:grid;grid-template-columns:1.5fr 1fr;gap:28px;align-items:center;
  background:linear-gradient(135deg,rgba(16,26,46,.96),rgba(12,20,36,.96));
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  position:relative;overflow:hidden;
}
.cta-banner::before{
  content:"";position:absolute;left:-60px;bottom:-100px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,92,255,.16),transparent 70%);
  pointer-events:none;
}
.cta-banner h2{font-size:clamp(20px,2.4vw,28px);margin-bottom:12px}
.cta-banner p{font-size:15px;line-height:1.85;color:var(--text-2);max-width:46ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px}
.qr-box{
  justify-self:center;width:180px;height:180px;border-radius:16px;
  background:var(--bg-2);border:1px solid var(--line);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  position:relative;overflow:hidden;
}
.qr-box i{font-size:44px;color:rgba(43,227,176,.5)}
.qr-box span{font-size:12.5px;color:var(--text-3);letter-spacing:.06em}

/* 侧栏 */
.side{position:sticky;top:94px;display:flex;flex-direction:column;gap:20px}
.side-card{
  padding:20px 20px 22px;border-radius:var(--radius-card);
  background:var(--bg-1);border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.side-title{
  display:flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:16px;
}
.side-title::before{
  content:"";width:4px;height:16px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--violet));
}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:340px;overflow-y:auto}
.toc-list a{
  display:block;padding:8px 10px;border-radius:10px;font-size:13.5px;color:var(--text-2);
  border-left:2px solid transparent;line-height:1.6;
}
.toc-list a:hover{background:var(--surface);color:var(--text-1)}
.toc-list a.active{color:var(--primary);border-left-color:var(--primary);background:rgba(43,227,176,.08)}
.hot-list{display:flex;flex-direction:column;gap:14px}
.hot-item{display:flex;gap:12px;align-items:flex-start}
.hot-item img{width:64px;height:44px;object-fit:cover;border-radius:10px;background:var(--bg-2);flex-shrink:0}
.hot-item .h-title{
  font-size:14px;font-weight:600;color:var(--text-1);line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.hot-item:hover .h-title{color:var(--primary)}
.hot-item .h-meta{font-size:12px;color:var(--text-3);margin-top:4px}
.side-cta{
  padding:22px 20px;border-radius:var(--radius-card);
  background:linear-gradient(160deg,rgba(43,227,176,.12),rgba(108,92,255,.1));
  border:1px solid var(--line-strong);
}
.side-cta h3{font-size:16px;margin-bottom:8px}
.side-cta p{font-size:13.5px;color:var(--text-2);line-height:1.75;margin-bottom:16px}
.side-cta .btn-primary{width:100%;justify-content:center;height:42px;font-size:14.5px}

/* 底部内链 */
.link-strip{margin-top:54px;padding-top:26px;border-top:1px solid var(--line)}
.link-strip .ls-title{font-size:13px;color:var(--text-3);margin-bottom:14px;letter-spacing:.06em}
.link-strip .ls-grid{display:flex;flex-wrap:wrap;gap:12px}
.link-strip .ls-grid a{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:var(--surface);
  font-size:13.5px;color:var(--text-2);
  transition:all .18s var(--ease);
}
.link-strip .ls-grid a:hover{border-color:var(--line-strong);color:var(--primary);background:rgba(43,227,176,.08)}

/* ============ 页脚 ============ */
.site-footer{margin-top:28px;border-top:1px solid var(--line);background:var(--bg-1)}
.foot-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;
  padding:52px 0 36px;
}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{font-size:13.5px;line-height:1.85;color:var(--text-2);max-width:34ch}
.foot-title{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:16px}
.foot-list{display:flex;flex-direction:column;gap:10px}
.foot-list a{font-size:13.5px;color:var(--text-2)}
.foot-list a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  padding:18px 0 26px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);
}

/* 动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s var(--ease),transform .3s var(--ease)}
.reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .article-layout{grid-template-columns:minmax(0,1fr) 290px;gap:30px}
  .nav-links{gap:16px}
  .nav-links a{font-size:14px}
}
@media (max-width:1024px){
  .nav-search{display:none}
  .nav-links{display:none}
  .nav-icon-btn{display:inline-flex}
  .header-inner{gap:12px;min-height:62px}
  .brand{margin-right:auto}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .side{position:static;margin-top:34px}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-banner{grid-template-columns:1fr;padding:28px}
  .qr-box{display:none}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .crumb-bar{padding:16px 0 2px}
  .article-head{padding:20px}
  .article-body{padding:22px 20px}
  .article-body p{font-size:16px}
  .article-body ul li,.article-body ol li{font-size:15.5px}
  .post-nav{grid-template-columns:1fr}
  .post-card.next{text-align:left}
  .post-card.next .p-label{justify-content:flex-start}
  .rec-grid{grid-template-columns:1fr}
  .link-strip .ls-grid a{width:100%;justify-content:center}
}
@media (max-width:520px){
  .brand-sub{display:none}
  .brand-name{font-size:15.5px}
  .article-title{font-size:23px}
  .article-body{padding:18px 16px;margin-top:16px}
  .article-body table{font-size:13px}
  .article-body thead th,.article-body tbody td{padding:9px 10px}
  .foot-grid{grid-template-columns:1fr;gap:22px;padding:38px 0 26px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn-primary,.cta-actions .btn-outline{justify-content:center}
  .meta-row{gap:8px;font-size:12.5px}
  .meta-row .divider{display:none}
}

/* roulang page: category1 */
:root{
    --bg-0:#070B16;
    --bg-1:#0C1424;
    --bg-2:#101A2E;
    --surface:rgba(255,255,255,.04);
    --line:rgba(120,220,200,.14);
    --line-strong:rgba(120,220,200,.28);
    --primary:#2BE3B0;
    --primary-deep:#12A886;
    --violet:#6C5CFF;
    --alert:#FF7A45;
    --text-1:#ECF3F8;
    --text-2:#9FB0C4;
    --text-3:#6B7C92;
    --radius:16px;
    --radius-sm:12px;
    --radius-pill:999px;
    --shadow-card:0 1px 0 rgba(255,255,255,.04) inset, 0 18px 40px -22px rgba(0,0,0,.8);
    --glow:0 8px 30px -8px rgba(43,227,176,.55);
    --ease:cubic-bezier(.2,.7,.3,1);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg-0);
    color:var(--text-2);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  a{color:inherit;text-decoration:none}
  img{display:block;max-width:100%}
  ul{margin:0;padding:0;list-style:none}
  p{margin:0}
  h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700}
  button{font:inherit;cursor:pointer}
  input{font:inherit}
  a:focus-visible,button:focus-visible,input:focus-visible,.chip:focus-visible,.faq-q:focus-visible{
    outline:2px solid var(--primary);
    outline-offset:2px;
  }
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
  .cd-num{font-variant-numeric:tabular-nums;font-family:ui-monospace,"SFMono-Regular",Menlo,monospace}

  /* ---------- top bar ---------- */
  .topbar{
    background:linear-gradient(90deg,rgba(43,227,176,.12),rgba(108,92,255,.12));
    border-bottom:1px solid var(--line);
    font-size:13px;
    color:var(--text-2);
  }
  .topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:44px}
  .topbar-note{display:inline-flex;align-items:center;gap:8px;color:var(--text-2)}
  .topbar-note i{color:var(--primary)}
  .topbar-cd{display:inline-flex;align-items:center;gap:8px;color:var(--text-3)}
  .topbar-cd .cd-num{color:var(--primary);font-size:16px;font-weight:700;letter-spacing:.04em}

  /* ---------- header ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(7,11,22,.82);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{position:relative;display:flex;align-items:center;gap:22px;height:70px}
  .brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
  .brand-mark{
    width:42px;height:42px;border-radius:13px;
    display:grid;place-items:center;
    background:linear-gradient(135deg,var(--primary),var(--primary-deep));
    color:#04140F;font-weight:800;font-size:15px;letter-spacing:.02em;
    box-shadow:0 6px 20px -10px rgba(43,227,176,.9);
  }
  .brand-name{display:block;color:var(--text-1);font-size:16px;font-weight:700;line-height:1.25}
  .brand-sub{display:block;font-size:12px;color:var(--text-3);line-height:1.4}

  .search{position:relative;flex:1;min-width:200px;max-width:560px}
  .search-box{
    display:flex;align-items:center;gap:10px;
    height:44px;padding:0 6px 0 16px;
    border-radius:var(--radius-pill);
    background:var(--surface);
    border:1px solid var(--line);
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,227,176,.16)}
  .search-ico{color:var(--text-3);font-size:14px;transition:color .2s}
  .search-box:focus-within .search-ico{color:var(--primary)}
  .search-box input{
    flex:1;min-width:0;height:100%;
    background:transparent;border:0;outline:none;
    color:var(--text-1);font-size:14px;
  }
  .search-box input::placeholder{color:var(--text-3)}
  .search-btn{
    height:34px;padding:0 16px;border:0;border-radius:var(--radius-pill);
    background:linear-gradient(135deg,var(--primary),var(--primary-deep));
    color:#04140F;font-size:13px;font-weight:700;
    box-shadow:0 6px 18px -8px rgba(43,227,176,.8);
    transition:filter .18s var(--ease),transform .18s var(--ease);
  }
  .search-btn:hover{filter:brightness(1.08)}
  .search-btn:active{transform:translateY(1px)}
  .search-panel{
    position:absolute;left:0;right:0;top:56px;
    background:rgba(12,20,36,.96);
    backdrop-filter:blur(10px);
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow-card);
    padding:16px;
    display:none;
    z-index:80;
  }
  .search.show .search-panel{display:block}
  .panel-title{font-size:12px;color:var(--text-3);letter-spacing:.06em;margin-bottom:10px}
  .panel-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
  .panel-chip{font-size:12px;padding:4px 12px;border-radius:var(--radius-pill);border:1px solid var(--line);color:var(--text-2);transition:.18s var(--ease)}
  .panel-chip:hover{border-color:var(--line-strong);color:var(--primary);background:var(--surface)}
  .panel-row{display:flex;align-items:center;gap:12px;padding:8px 0;border-top:1px solid rgba(255,255,255,.05);font-size:14px;color:var(--text-2)}
  .panel-row:first-of-type{border-top:0}
  .panel-row span.dot{width:6px;height:6px;border-radius:50%;background:var(--primary);flex-shrink:0}

  .nav-links{display:flex;align-items:center;gap:22px;font-size:15px;margin-left:auto}
  .nav-links a{position:relative;color:var(--text-2);padding:6px 0;transition:color .18s var(--ease);white-space:nowrap}
  .nav-links a:hover{color:var(--primary)}
  .nav-links a.active{color:var(--text-1)}
  .nav-links a.active::after{
    content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
    background:linear-gradient(90deg,var(--primary),rgba(43,227,176,0));
  }
  .nav-cta{
    display:inline-flex;align-items:center;gap:7px;
    height:38px;padding:0 16px;border-radius:10px;
    background:linear-gradient(135deg,var(--primary),var(--primary-deep));
    color:#04140F !important;font-weight:700;font-size:14px;
    box-shadow:var(--glow);
    transition:box-shadow .2s var(--ease),transform .2s var(--ease);
  }
  .nav-cta:hover{box-shadow:0 10px 34px -8px rgba(43,227,176,.75)}
  .nav-cta:active{transform:translateY(1px)}
  .header-actions{display:none;align-items:center;gap:8px;margin-left:auto}
  .icon-btn{
    width:40px;height:40px;border-radius:12px;
    display:inline-flex;align-items:center;justify-content:center;
    background:var(--surface);border:1px solid var(--line);color:var(--text-1);
    transition:.18s var(--ease);
  }
  .icon-btn:hover{border-color:var(--line-strong);color:var(--primary)}

  .drawer{
    position:fixed;inset:0 0 0 auto;width:min(320px,86vw);
    background:rgba(10,16,30,.98);
    border-left:1px solid var(--line);
    transform:translateX(102%);
    transition:transform .26s var(--ease);
    z-index:90;
    padding:20px;
    display:flex;flex-direction:column;gap:8px;
  }
  .drawer.open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
  .drawer-head strong{color:var(--text-1);font-size:15px}
  .drawer-link{padding:12px 12px;border-radius:12px;color:var(--text-2);font-size:15px;border:1px solid transparent;transition:.18s var(--ease)}
  .drawer-link:hover{background:var(--surface);color:var(--primary);border-color:var(--line)}
  .drawer-link.active{color:var(--text-1);background:var(--surface);border-color:var(--line)}
  .drawer .btn{margin-top:auto}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:var(--radius-sm);
    font-size:15px;font-weight:600;border:1px solid transparent;
    white-space:nowrap;
    transition:all .2s var(--ease);
  }
  .btn-primary{
    background:linear-gradient(135deg,var(--primary),var(--primary-deep));
    color:#04140F;box-shadow:var(--glow);
  }
  .btn-primary:hover{filter:brightness(1.06);box-shadow:0 10px 36px -6px rgba(43,227,176,.75)}
  .btn-primary:active{transform:translateY(1px)}
  .btn-ghost{background:var(--surface);border-color:var(--line);color:var(--text-1)}
  .btn-ghost:hover{border-color:var(--line-strong);color:var(--primary)}
  .btn-sm{height:36px;padding:0 14px;font-size:13px;border-radius:10px}
  .btn:disabled,.btn.disabled{opacity:.45;box-shadow:none;cursor:not-allowed}

  /* ---------- tags ---------- */
  .tag{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 11px;border-radius:var(--radius-pill);font-size:12px;font-weight:600;line-height:1}
  .tag-violet{background:rgba(108,92,255,.16);color:#B9B1FF;border:1px solid rgba(108,92,255,.35)}
  .tag-primary{background:rgba(43,227,176,.14);color:var(--primary);border:1px solid rgba(43,227,176,.3)}
  .tag-alert{background:rgba(255,122,69,.14);color:var(--alert);border:1px solid rgba(255,122,69,.32)}
  .badge{
    position:absolute;left:12px;top:12px;
    display:inline-flex;align-items:center;height:24px;padding:0 11px;
    border-radius:var(--radius-pill);font-size:11px;font-weight:700;
    background:rgba(108,92,255,.22);color:#C6BFFF;border:1px solid rgba(108,92,255,.4);
    backdrop-filter:blur(4px);
  }
  .badge.is-open{background:rgba(43,227,176,.2);color:var(--primary);border-color:rgba(43,227,176,.42)}
  .badge.is-alert{background:rgba(255,122,69,.2);color:#FFB18F;border-color:rgba(255,122,69,.42)}

  /* ---------- crumbs ---------- */
  .crumbs{border-bottom:1px solid var(--line);background:var(--bg-0)}
  .crumbs .container{display:flex;align-items:center;gap:8px;height:46px;font-size:13px;color:var(--text-3)}
  .crumbs a{color:var(--text-3);transition:color .18s}
  .crumbs a:hover{color:var(--primary)}
  .crumbs .sep{color:#3A4557}
  .crumbs .cur{color:var(--text-2)}

  /* ---------- category hero ---------- */
  .cat-hero{
    position:relative;
    padding:60px 0 52px;
    background-image:url("/assets/images/backpic/back-1.png");
    background-size:cover;
    background-position:center;
    border-bottom:1px solid var(--line);
    overflow:hidden;
  }
  .cat-hero::before{
    content:"";position:absolute;inset:0;
    background:linear-gradient(120deg,rgba(7,11,22,.95) 0%,rgba(7,11,22,.82) 52%,rgba(12,20,36,.7) 100%);
  }
  .hero-inner{position:relative;z-index:1;max-width:760px}
  .hero-title{
    margin-top:16px;
    font-size:clamp(30px,4.2vw,50px);
    line-height:1.15;
    font-weight:800;
    letter-spacing:-.01em;
  }
  .hero-sub{margin-top:14px;font-size:clamp(16px,1.5vw,19px);color:var(--text-1);font-weight:600}
  .hero-desc{margin-top:10px;font-size:15px;color:var(--text-2);max-width:640px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
  .hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
  .hero-pills li{
    font-size:12px;color:var(--text-2);
    padding:5px 13px;border-radius:var(--radius-pill);
    background:var(--surface);border:1px solid var(--line);
  }

  /* ---------- sections ---------- */
  .section{padding:80px 0}
  .section-tight{padding:56px 0}
  .sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
  .sec-title{
    position:relative;padding-left:16px;
    font-size:clamp(22px,2.6vw,32px);line-height:1.25;font-weight:700;
  }
  .sec-title::before{
    content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:4px;
    background:linear-gradient(180deg,var(--primary),var(--primary-deep));
  }
  .sec-desc{margin-top:12px;font-size:15px;color:var(--text-2);max-width:680px}

  /* ---------- chips ---------- */
  .chips{
    display:flex;gap:10px;overflow-x:auto;
    padding:4px 0 14px;margin-bottom:12px;
    scrollbar-width:thin;
  }
  .chip{
    flex:0 0 auto;
    height:36px;padding:0 16px;border-radius:var(--radius-pill);
    display:inline-flex;align-items:center;
    background:var(--surface);border:1px solid var(--line);
    color:var(--text-2);font-size:14px;
    transition:.18s var(--ease);
  }
  .chip:hover{border-color:var(--line-strong);color:var(--primary)}
  .chip.active{
    background:linear-gradient(135deg,var(--primary),var(--primary-deep));
    border-color:transparent;color:#04140F;font-weight:700;
    box-shadow:0 6px 20px -10px rgba(43,227,176,.9);
  }

  /* ---------- activity grid ---------- */
  .grid-act{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
  .act-card{
    background:var(--bg-2);
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow-card);
    overflow:hidden;
    display:flex;flex-direction:column;
    transition:transform .2s var(--ease),border-color .2s var(--ease);
  }
  .act-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
  .card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-1)}
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
  .act-card:hover .card-media img{transform:scale(1.04)}
  .card-media::after{content:"";position:absolute;inset:auto 0 0 0;height:45%;background:linear-gradient(180deg,rgba(7,11,22,0),rgba(7,11,22,.85))}
  .card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
  .card-title{font-size:18px;font-weight:600;line-height:1.4;color:var(--text-1)}
  .card-text{font-size:14px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .card-meta{display:flex;flex-wrap:wrap;gap:8px 16px;font-size:13px;color:var(--text-3);margin-top:2px}
  .card-btn{margin-top:auto;align-self:flex-start}
  .empty{
    display:none;margin-top:8px;padding:38px 20px;text-align:center;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  }
  .empty.show{display:block}
  .empty i{font-size:26px;color:var(--text-3)}
  .empty p{margin-top:12px;color:var(--text-2);font-size:15px}

  /* ---------- steps ---------- */
  .steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
  .step{
    padding:24px 20px;border-radius:var(--radius);
    background:var(--bg-1);border:1px solid var(--line);
    transition:border-color .2s var(--ease),transform .2s var(--ease);
  }
  .step:hover{border-color:var(--line-strong);transform:translateY(-4px)}
  .step-num{
    font-size:34px;font-weight:800;line-height:1;
    color:transparent;-webkit-text-stroke:1px var(--line-strong);
    font-variant-numeric:tabular-nums;
    display:block;margin-bottom:14px;
  }
  .step h3{font-size:17px;font-weight:600;margin-bottom:8px}
  .step p{font-size:14px;color:var(--text-2)}

  /* ---------- zigzag ---------- */
  .zig{display:flex;flex-direction:column;gap:52px}
  .zig-item{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
  .zig-item .zig-text{order:2}
  .zig-item.rev .zig-media{order:2}
  .zig-item.rev .zig-text{order:1}
  .zig-media{
    border-radius:var(--radius);overflow:hidden;
    border:1px solid var(--line);background:var(--bg-2);
    aspect-ratio:16/10;
  }
  .zig-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
  .zig-media:hover img{transform:scale(1.03)}
  .zig-text h3{font-size:clamp(19px,2vw,23px);font-weight:700;margin-bottom:12px}
  .zig-text p{font-size:15px;color:var(--text-2)}
  .zig-list{margin-top:16px;display:flex;flex-direction:column;gap:8px}
  .zig-list li{position:relative;padding-left:18px;font-size:14px;color:var(--text-2)}
  .zig-list li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(43,227,176,.8)}

  /* ---------- faq ---------- */
  .faq-wrap{max-width:860px;margin:0 auto}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-item:first-child{border-top:1px solid var(--line)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 0;background:none;border:0;text-align:left;
    color:var(--text-1);font-size:16px;font-weight:600;line-height:1.6;
  }
  .faq-q .faq-ico{
    flex:0 0 auto;width:28px;height:28px;border-radius:50%;
    display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);color:var(--primary);font-size:12px;
    transition:transform .2s var(--ease),border-color .2s var(--ease);
  }
  .faq-item.open .faq-ico{transform:rotate(45deg);border-color:var(--line-strong)}
  .faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .24s var(--ease),opacity .2s var(--ease)}
  .faq-item.open .faq-a{max-height:340px;opacity:1}
  .faq-a p{padding:0 0 20px;font-size:15px;color:var(--text-2);max-width:760px}

  /* ---------- cta band ---------- */
  .cta-band{
    position:relative;
    border-radius:20px;
    border:1px solid var(--line);
    background:linear-gradient(115deg,rgba(16,26,46,.94),rgba(12,20,36,.9)),
               url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
    box-shadow:var(--shadow-card);
    padding:38px 34px;
    display:grid;grid-template-columns:6fr 4fr;gap:34px;
    overflow:hidden;
  }
  .cta-band::after{
    content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
    background:radial-gradient(circle,rgba(43,227,176,.14),rgba(43,227,176,0) 70%);
  }
  .cta-left{position:relative;z-index:1}
  .cta-left h2{font-size:clamp(21px,2.3vw,27px);font-weight:700}
  .cta-left p{margin-top:12px;font-size:15px;color:var(--text-2);max-width:520px}
  .join-form{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
  .join-form input[type="text"]{
    flex:1 1 240px;min-width:0;height:46px;padding:0 16px;
    border-radius:10px;background:var(--surface);
    border:1px solid var(--line);color:var(--text-1);outline:none;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .join-form input[type="text"]::placeholder{color:var(--text-3)}
  .join-form input[type="text"]:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,227,176,.16)}
  .join-form input.err{border-color:var(--alert);box-shadow:0 0 0 3px rgba(255,122,69,.14)}
  .check{display:flex;align-items:center;gap:9px;margin-top:14px;font-size:13px;color:var(--text-3);flex:1 1 100%}
  .check input{appearance:none;-webkit-appearance:none;width:16px;height:16px;border-radius:5px;border:1px solid var(--line-strong);background:var(--surface);position:relative;transition:.18s}
  .check input:checked{background:var(--primary);border-color:var(--primary)}
  .check input:checked::after{content:"";position:absolute;left:5px;top:1px;width:5px;height:9px;border:2px solid #04140F;border-top:0;border-left:0;transform:rotate(42deg)}
  .form-msg{margin-top:12px;font-size:13px;color:var(--alert);display:none;flex:1 1 100%}
  .form-msg.show{display:block}
  .form-msg.ok{color:var(--primary)}
  .cta-right{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px}
  .qr{
    width:100%;max-width:200px;aspect-ratio:1/1;border-radius:var(--radius);
    border:1px dashed var(--line-strong);
    background:var(--surface);
    display:grid;place-items:center;text-align:center;
    color:var(--text-3);font-size:13px;padding:12px;
  }
  .qr span{color:var(--primary);font-weight:700;font-size:14px}
  .cta-right small{font-size:12px;color:var(--text-3)}

  /* ---------- quick links ---------- */
  .quick{
    display:flex;flex-wrap:wrap;align-items:center;gap:12px;
    padding:20px 22px;border-radius:var(--radius);
    background:var(--bg-1);border:1px solid var(--line);
  }
  .quick-label{font-size:13px;color:var(--text-3);letter-spacing:.04em}
  .quick a{
    font-size:14px;color:var(--text-2);
    padding:7px 15px;border-radius:var(--radius-pill);
    border:1px solid var(--line);background:var(--surface);
    transition:.18s var(--ease);
  }
  .quick a:hover{color:var(--primary);border-color:var(--line-strong)}

  /* ---------- footer ---------- */
  .site-footer{border-top:1px solid var(--line);background:var(--bg-1);padding:60px 0 0}
  .foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px}
  .foot-brand .brand{margin-bottom:16px}
  .foot-brand p{font-size:14px;color:var(--text-2);max-width:300px}
  .foot-title{font-size:14px;color:var(--text-1);font-weight:600;margin-bottom:14px}
  .foot-list{display:flex;flex-direction:column;gap:10px}
  .foot-list a,.foot-list span{font-size:14px;color:var(--text-2);transition:color .18s,text-decoration-color .18s}
  .foot-list a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
  .foot-bottom{
    margin-top:46px;padding:20px 0;border-top:1px solid var(--line);
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
    font-size:13px;color:var(--text-3);
  }

  /* ---------- responsive ---------- */
  @media (max-width:1024px){
    .container{padding:0 20px}
    .section{padding:64px 0}
    .grid-act{grid-template-columns:repeat(2,minmax(0,1fr))}
    .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
    .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
    .nav-links{display:none}
    .search{display:none}
    .header-actions{display:flex}
    .site-header.show-search .search{
      display:block;position:absolute;left:20px;right:20px;top:60px;max-width:none;z-index:70;
    }
    .site-header.show-search .search .search-box{background:var(--bg-1)}
    .header-inner{height:62px;gap:14px}
    .cta-band{grid-template-columns:1fr;padding:30px 22px}
    .cta-right{align-items:flex-start}
  }
  @media (max-width:768px){
    .topbar-note{display:none}
    .hero-title{margin-top:12px}
    .zig-item{grid-template-columns:1fr;gap:20px}
    .zig-item .zig-text,.zig-item.rev .zig-text{order:1}
    .zig-item .zig-media,.zig-item.rev .zig-media{order:2}
    .zig{gap:38px}
    .section{padding:52px 0}
    .section-tight{padding:40px 0}
  }
  @media (max-width:560px){
    .container{padding:0 16px}
    .grid-act{grid-template-columns:1fr}
    .steps{grid-template-columns:1fr}
    .hero-actions .btn{flex:1 1 auto}
    .foot-grid{grid-template-columns:1fr}
    .cta-band{padding:26px 18px}
    .quick{padding:16px}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  }

/* roulang page: category2 */
:root{
  --bg-0:#070B16;--bg-1:#0C1424;--bg-2:#101A2E;
  --surface:rgba(255,255,255,.04);
  --line:rgba(120,220,200,.14);--line-strong:rgba(120,220,200,.28);
  --primary:#2BE3B0;--primary-deep:#12A886;--violet:#6C5CFF;--alert:#FF7A45;
  --text-1:#ECF3F8;--text-2:#9FB0C4;--text-3:#6B7C92;
  --r-card:16px;--r-btn:12px;--r-sm:10px;
  --shadow:0 1px 0 rgba(255,255,255,.04) inset,0 18px 40px -22px rgba(0,0,0,.8);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg-0);color:var(--text-2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:15px;line-height:1.85;-webkit-font-smoothing:antialiased;
  background-image:radial-gradient(900px 420px at 18% -10%,rgba(43,227,176,.10),transparent 65%),
                   radial-gradient(700px 360px at 92% 4%,rgba(108,92,255,.09),transparent 62%),
                   linear-gradient(rgba(120,220,200,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(120,220,200,.035) 1px,transparent 1px);
  background-size:auto,auto,64px 64px,64px 64px;
}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease)}
a:hover{color:var(--primary)}
img{max-width:100%;display:block}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--text-1);letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:70;background:rgba(7,11,22,.82);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:height .25s var(--ease),background .25s var(--ease)}
.header-inner{display:flex;align-items:center;gap:20px;height:74px;transition:height .25s var(--ease)}
.site-header.shrink .header-inner{height:66px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#04140F;font-weight:800;font-size:14px;letter-spacing:.02em;box-shadow:0 8px 26px -10px rgba(43,227,176,.7)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:16px;font-weight:800;color:var(--text-1);letter-spacing:.01em}
.brand-sub{font-size:11px;color:var(--text-3)}
.search-wrap{position:relative;flex:1 1 auto;max-width:560px;min-width:260px;margin:0 auto}
.search-box{display:flex;align-items:center;gap:10px;height:46px;padding:0 6px 0 18px;border-radius:999px;background:var(--surface);border:1px solid var(--line);transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.search-box i{color:var(--text-3);font-size:15px;transition:color .2s var(--ease)}
.search-box input{flex:1;min-width:0;background:transparent;border:0;outline:0;height:100%;font-size:14.5px;color:var(--text-1)}
.search-box input::placeholder{color:var(--text-3)}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,227,176,.16)}
.search-box:focus-within i{color:var(--primary)}
.search-btn{border:0;cursor:pointer;height:34px;padding:0 18px;border-radius:999px;background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#04140F;font-weight:700;font-size:13.5px;box-shadow:0 8px 30px -8px rgba(43,227,176,.55);transition:all .2s var(--ease)}
.search-btn:hover{box-shadow:0 8px 34px -6px rgba(43,227,176,.75);filter:brightness(1.06)}
.search-btn:active{transform:translateY(1px);box-shadow:0 4px 16px -8px rgba(43,227,176,.6)}
.search-panel{position:absolute;top:56px;left:0;right:0;padding:16px;border-radius:16px;background:rgba(12,20,36,.96);border:1px solid var(--line);box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .22s var(--ease)}
.search-panel.open{opacity:1;visibility:visible;transform:translateY(0)}
.panel-title{font-size:12.5px;color:var(--text-3);margin-bottom:10px;letter-spacing:.04em}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;height:28px;padding:0 13px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--text-2);font-size:12.5px;transition:all .2s var(--ease)}
.chip:hover{border-color:var(--line-strong);background:rgba(43,227,176,.10);color:var(--text-1)}
.panel-foot{margin-top:12px;font-size:12.5px;color:var(--text-3)}
.nav-links{display:flex;align-items:center;gap:22px;flex:0 0 auto}
.nav-links > a{font-size:15px;color:var(--text-2);position:relative;padding:4px 0;white-space:nowrap}
.nav-links > a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--primary);border-radius:2px;transition:right .22s var(--ease)}
.nav-links > a:hover{color:var(--text-1)}
.nav-links > a:hover::after{right:0}
.nav-links > a.active{color:var(--primary)}
.nav-links > a.active::after{right:0}
.nav-cta{display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 18px;border-radius:var(--r-btn);background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#04140F !important;font-weight:700;font-size:14px;box-shadow:0 8px 30px -8px rgba(43,227,176,.55)}
.nav-cta::after{display:none}
.nav-cta:hover{filter:brightness(1.06);box-shadow:0 10px 34px -6px rgba(43,227,176,.72)}
.icon-btn{display:none;width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--line);background:var(--surface);color:var(--text-2);cursor:pointer;align-items:center;justify-content:center}
.icon-btn:hover{color:var(--primary);border-color:var(--line-strong)}
.mobile-search{display:none;padding:0 24px 16px}
.mobile-search.open{display:block}
.mobile-search .search-box{margin-bottom:12px}
.drawer{position:fixed;top:0;right:0;width:300px;max-width:86vw;height:100%;z-index:90;background:rgba(9,14,26,.98);border-left:1px solid var(--line);padding:22px;transform:translateX(102%);transition:transform .28s var(--ease);display:flex;flex-direction:column;gap:8px}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer-head span{font-size:15px;font-weight:700;color:var(--text-1)}
.drawer-head button{background:transparent;border:1px solid var(--line);border-radius:10px;width:34px;height:34px;color:var(--text-2);cursor:pointer}
.drawer-nav{display:flex;flex-direction:column;gap:2px}
.drawer-nav a{padding:13px 12px;border-radius:10px;font-size:15px;color:var(--text-2)}
.drawer-nav a:hover{background:var(--surface);color:var(--text-1)}
.drawer-nav a.active{color:var(--primary);background:rgba(43,227,176,.08)}
.overlay{position:fixed;inset:0;z-index:80;background:rgba(4,7,14,.6);opacity:0;visibility:hidden;transition:opacity .25s var(--ease)}
.overlay.open{opacity:1;visibility:visible}

/* ---------- hero ---------- */
.page-hero{position:relative;padding:46px 0 40px;background-image:linear-gradient(100deg,rgba(7,11,22,.94),rgba(7,11,22,.72)),url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:16px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--text-3)}
.breadcrumb .current{color:var(--text-3)}
.page-hero h1{font-size:clamp(28px,3.9vw,46px);line-height:1.16;font-weight:800;max-width:820px}
.hero-line{margin-top:14px;font-size:16px;line-height:1.8;color:var(--text-2);max-width:640px}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:28px;max-width:760px}
.stat-card{padding:16px 18px;border-radius:14px;background:var(--bg-2);border:1px solid var(--line);box-shadow:var(--shadow)}
.stat-num{font-size:24px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.2}
.stat-label{margin-top:4px;font-size:13px;color:var(--text-3)}

/* ---------- sections ---------- */
.section{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-head h2{font-size:clamp(21px,2.4vw,29px);font-weight:700;position:relative;padding-left:14px}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--primary)}
.section-sub{margin-top:8px;font-size:14.5px;color:var(--text-3)}
.link-more{font-size:14px;color:var(--primary);display:inline-flex;align-items:center;gap:6px;border-bottom:1px solid transparent}
.link-more:hover{border-bottom-color:var(--primary)}

/* ---------- list layout ---------- */
.list-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:24px;align-items:start}
.side-tree{position:sticky;top:96px;padding:18px;border-radius:var(--r-card);background:var(--bg-1);border:1px solid var(--line);box-shadow:var(--shadow)}
.tree-title{font-size:12.5px;color:var(--text-3);letter-spacing:.06em;margin-bottom:12px}
.side-tree ul{display:flex;flex-direction:column;gap:4px}
.side-tree a{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-radius:10px;font-size:14px;color:var(--text-2)}
.side-tree a span{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums}
.side-tree a:hover{background:var(--surface);color:var(--text-1)}
.side-tree a.active{background:rgba(43,227,176,.10);color:var(--primary);border:1px solid var(--line-strong)}
.side-tree a.active span{color:var(--primary)}
.side-note{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:12.5px;color:var(--text-3);line-height:1.7}

.list-body{display:flex;flex-direction:column;border-radius:var(--r-card);background:var(--bg-1);border:1px solid var(--line);box-shadow:var(--shadow);overflow:hidden}
.row-item{display:grid;grid-template-columns:64px minmax(0,1fr) auto auto;align-items:center;gap:16px;padding:16px 20px;border-bottom:1px solid var(--line);transition:background .2s var(--ease)}
.row-item:last-child{border-bottom:0}
.row-item:hover{background:rgba(43,227,176,.05)}
.row-thumb{width:64px;height:64px;border-radius:12px;object-fit:cover;border:1px solid var(--line)}
.row-main h3{font-size:16px;font-weight:600;line-height:1.4}
.row-tags{display:flex;gap:8px;margin-top:7px;flex-wrap:wrap}
.tag{display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;font-size:11.5px;line-height:1;border:1px solid transparent}
.tag-violet{color:#B9B2FF;background:rgba(108,92,255,.14);border-color:rgba(108,92,255,.35)}
.tag-cyan{color:var(--primary);background:rgba(43,227,176,.10);border-color:rgba(43,227,176,.30)}
.tag-alert{color:#FFB18E;background:rgba(255,122,69,.12);border-color:rgba(255,122,69,.32)}
.row-meta{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;white-space:nowrap}
.row-meta strong{color:var(--text-1);font-weight:600}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);cursor:pointer;border:1px solid transparent;transition:all .2s var(--ease);font-weight:600;text-align:center}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#04140F;box-shadow:0 8px 30px -8px rgba(43,227,176,.55)}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 10px 36px -6px rgba(43,227,176,.75);color:#04140F}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 16px -8px rgba(43,227,176,.6)}
.btn-ghost{border-color:var(--line-strong);background:transparent;color:var(--text-1)}
.btn-ghost:hover{background:var(--surface);border-color:var(--primary);color:var(--primary)}
.btn-sm{height:34px;padding:0 16px;font-size:13.5px}
.btn-lg{height:48px;padding:0 26px;font-size:15.5px}
.btn-block{width:100%}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step{padding:24px 22px;border-radius:var(--r-card);background:var(--bg-2);border:1px solid var(--line);box-shadow:var(--shadow);transition:transform .2s var(--ease),border-color .2s var(--ease)}
.step:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.step-num{font-size:30px;font-weight:800;color:transparent;-webkit-text-stroke:1.4px rgba(43,227,176,.55);line-height:1;font-variant-numeric:tabular-nums}
.step h3{margin-top:14px;font-size:17px;font-weight:600}
.step p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--text-2)}

/* ---------- data band ---------- */
.band{margin-top:8px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.band-card{padding:22px;border-radius:var(--r-card);background:var(--bg-1);border:1px solid var(--line);box-shadow:var(--shadow)}
.band-card i{color:var(--primary);font-size:18px}
.band-card h3{margin-top:12px;font-size:16.5px;font-weight:600}
.band-card p{margin-top:8px;font-size:14px;line-height:1.8}
.band-card .hl{color:var(--alert);font-variant-numeric:tabular-nums}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto;border-radius:var(--r-card);background:var(--bg-1);border:1px solid var(--line);box-shadow:var(--shadow);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;font-size:16px;font-weight:600;color:var(--text-1);transition:background .2s var(--ease)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:rgba(43,227,176,.05)}
.faq-item summary::after{content:"+";flex:0 0 auto;display:grid;place-items:center;width:26px;height:26px;border-radius:999px;border:1px solid var(--line-strong);color:var(--primary);font-size:15px;line-height:1;transition:transform .2s var(--ease),background .2s var(--ease)}
.faq-item[open] summary::after{content:"−";transform:rotate(45deg);background:rgba(43,227,176,.12)}
.faq-body{padding:0 22px 22px;font-size:15px;line-height:1.9;color:var(--text-2)}

/* ---------- cta ---------- */
.cta-band{padding:56px 0 68px}
.cta-card{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:28px;padding:34px;border-radius:18px;background:rgba(16,26,46,.72);border:1px solid var(--line);box-shadow:var(--shadow);backdrop-filter:blur(8px)}
.cta-card h2{font-size:clamp(20px,2.3vw,27px);font-weight:700}
.cta-card .lead{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--text-2);max-width:520px}
.cta-form{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap}
.cta-form input[type="text"]{flex:1 1 240px;height:48px;padding:0 16px;border-radius:var(--r-sm);background:var(--surface);border:1px solid var(--line);color:var(--text-1);outline:0;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.cta-form input[type="text"]::placeholder{color:var(--text-3)}
.cta-form input[type="text"]:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,227,176,.16)}
.cta-form input.error{border-color:var(--alert);box-shadow:0 0 0 3px rgba(255,122,69,.16)}
.form-msg{margin-top:10px;font-size:13px;color:var(--alert);display:none}
.form-msg.show{display:block}
.form-ok{margin-top:10px;font-size:13.5px;color:var(--primary);display:none}
.form-ok.show{display:block}
.agree{display:flex;align-items:center;gap:9px;margin-top:14px;font-size:13px;color:var(--text-3);cursor:pointer}
.agree input{appearance:none;width:16px;height:16px;border-radius:5px;border:1px solid var(--line-strong);background:var(--surface);cursor:pointer;position:relative;flex:0 0 auto}
.agree input:checked{background:var(--primary);border-color:var(--primary)}
.agree input:checked::after{content:"✓";position:absolute;inset:0;display:grid;place-items:center;font-size:11px;color:#04140F;font-weight:800}
.qr-box{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;aspect-ratio:1/1;max-width:230px;margin:0 auto;border-radius:16px;background:var(--bg-2);border:1px dashed var(--line-strong);color:var(--text-3);position:relative;overflow:hidden}
.qr-box i{font-size:32px;color:var(--primary);opacity:.85}
.qr-box span{font-size:12.5px;text-align:center;line-height:1.6;padding:0 14px}
.qr-box::after{content:"9游官网入口";position:absolute;bottom:10px;font-size:11px;letter-spacing:.28em;color:rgba(159,176,196,.35)}

/* ---------- related ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.rel-card{display:block;padding:18px;border-radius:14px;background:var(--bg-2);border:1px solid var(--line);transition:all .2s var(--ease)}
.rel-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.rel-card h3{font-size:15.5px;font-weight:600}
.rel-card p{margin-top:8px;font-size:13px;color:var(--text-3);line-height:1.7}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-1);padding:52px 0 26px;margin-top:12px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:28px}
.foot-brand .brand{margin-bottom:14px}
.foot-brand p{font-size:13.5px;line-height:1.8;color:var(--text-3);max-width:280px}
.foot-title{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:14px}
.foot-list{display:flex;flex-direction:column;gap:10px}
.foot-list a{font-size:14px;color:var(--text-2)}
.foot-list a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.foot-bottom{margin-top:36px;padding-top:18px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav-links{gap:16px}
  .nav-links > a{font-size:14px}
}
@media (max-width:1023px){
  .search-wrap{display:none}
  .nav-links{display:none}
  .icon-btn{display:inline-flex}
  .header-inner{gap:12px}
  .brand{margin-right:auto}
  .list-layout{grid-template-columns:1fr}
  .side-tree{position:static;padding:14px}
  .side-tree ul{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px}
  .side-tree a{white-space:nowrap;border:1px solid var(--line);padding:8px 14px}
  .side-note{display:none}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .band{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-card{grid-template-columns:1fr}
  .qr-box{max-width:200px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:52px 0}
  .page-hero{padding:34px 0 30px}
  .hero-stats{grid-template-columns:1fr 1fr;gap:12px}
  .row-item{grid-template-columns:56px minmax(0,1fr);grid-template-areas:"thumb main" ". meta" ". btn";row-gap:12px;padding:16px}
  .row-thumb{grid-area:thumb;width:56px;height:56px}
  .row-main{grid-area:main}
  .row-meta{grid-area:meta;white-space:normal}
  .row-item .btn{grid-area:btn;justify-self:start}
  .foot-grid{grid-template-columns:1fr}
  .mobile-search{padding:0 20px 14px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand-sub{display:none}
  .hero-stats{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .cta-card{padding:22px}
  .cta-form input[type="text"]{flex:1 1 100%}
  .cta-form .btn{width:100%}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category4 */
:root{
  --bg-0:#070B16; --bg-1:#0C1424; --bg-2:#101A2E;
  --surface:rgba(255,255,255,.04);
  --line:rgba(120,220,200,.14);
  --line-strong:rgba(120,220,200,.28);
  --primary:#2BE3B0; --primary-deep:#12A886;
  --violet:#6C5CFF; --alert:#FF7A45;
  --text-1:#ECF3F8; --text-2:#9FB0C4; --text-3:#6B7C92;
  --r-card:16px; --r-btn:12px; --r-sm:14px;
  --shadow-card:0 1px 0 rgba(255,255,255,.04) inset, 0 18px 40px -22px rgba(0,0,0,.8);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg-0);color:var(--text-2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--text-2);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary)}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-tight{padding:64px 0}
.section-head{margin-bottom:32px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.25}
.section-head p{margin-top:12px;font-size:15px;color:var(--text-2);max-width:720px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;color:var(--primary);text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);display:block}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(7,11,22,.86);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:background .25s ease}
.topbar{border-bottom:1px solid var(--line);background:linear-gradient(90deg,rgba(43,227,176,.08),rgba(108,92,255,.08));overflow:hidden;transition:max-height .25s ease}
.topbar-inner{height:44px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-text{font-size:13px;color:var(--text-1);display:flex;align-items:center;gap:8px}
.topbar-text i{color:var(--primary)}
.topbar-btn{font-size:12px;padding:5px 14px;border:1px solid var(--line-strong);border-radius:999px;color:var(--text-1)}
.topbar-btn:hover{background:var(--primary);color:#04140f;border-color:var(--primary)}
.site-header.is-scrolled .topbar{max-height:0;border-color:transparent}
.site-header.is-scrolled{background:rgba(7,11,22,.92)}
.header-inner{display:flex;align-items:center;gap:20px;height:76px;transition:height .25s ease}
.site-header.is-scrolled .header-inner{height:68px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{width:42px;height:42px;border-radius:13px;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;color:#04140f;background:linear-gradient(140deg,var(--primary),var(--primary-deep));box-shadow:0 8px 26px -10px rgba(43,227,176,.65);letter-spacing:-.02em}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:700;color:var(--text-1)}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.06em}
.brand:hover .brand-name{color:var(--primary)}

.nav-search{position:relative;flex:1;max-width:560px;min-width:260px;display:flex;align-items:center;gap:10px;height:46px;padding:0 6px 0 18px;border-radius:999px;background:var(--surface);border:1px solid var(--line);transition:border-color .2s ease,box-shadow .2s ease}
.nav-search>i{color:var(--text-3);font-size:14px;transition:color .2s ease}
.nav-search input{flex:1;height:100%;background:transparent;border:0;outline:none;color:var(--text-1);font-size:14px}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search .search-btn{border:0;cursor:pointer;padding:9px 18px;border-radius:999px;font-size:13px;font-weight:600;color:#04140f;background:linear-gradient(135deg,var(--primary),var(--primary-deep));box-shadow:0 8px 30px -10px rgba(43,227,176,.6);transition:transform .18s ease,box-shadow .18s ease}
.nav-search .search-btn:hover{box-shadow:0 10px 34px -8px rgba(43,227,176,.75);filter:brightness(1.06)}
.nav-search .search-btn:active{transform:translateY(1px);box-shadow:0 4px 16px -10px rgba(43,227,176,.6)}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,227,176,.14)}
.nav-search:focus-within>i{color:var(--primary)}
.search-panel{position:absolute;top:calc(100% + 12px);left:0;right:0;padding:16px;border-radius:16px;background:rgba(12,20,36,.96);border:1px solid var(--line);box-shadow:var(--shadow-card);opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .2s ease}
.nav-search:focus-within .search-panel{opacity:1;visibility:visible;transform:translateY(0)}
.sp-title{font-size:12px;color:var(--text-3);margin-bottom:10px}
.sp-chips{display:flex;flex-wrap:wrap;gap:8px}
.sp-chip{font-size:12px;padding:5px 13px;border-radius:999px;border:1px solid var(--line);color:var(--text-2)}
.sp-chip:hover{border-color:var(--primary);color:var(--primary);background:rgba(43,227,176,.08)}

.nav-links{display:flex;align-items:center;gap:22px;font-size:15px;margin-left:auto}
.nav-links a{position:relative;color:var(--text-2);white-space:nowrap}
.nav-links a:hover{color:var(--primary)}
.nav-links a.active{color:var(--text-1);font-weight:600}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-10px;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 12px rgba(43,227,176,.7)}
.nav-cta{display:inline-flex;align-items:center;gap:8px;padding:9px 16px !important;border-radius:var(--r-btn);border:1px solid var(--line-strong);color:var(--text-1) !important;font-size:14px}
.nav-cta:hover{background:var(--primary);color:#04140f !important;border-color:var(--primary);box-shadow:0 8px 26px -10px rgba(43,227,176,.7)}
.nav-actions{display:none;align-items:center;gap:8px;margin-left:auto}
.icon-btn{width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--text-1);cursor:pointer;transition:all .2s ease}
.icon-btn:hover{border-color:var(--primary);color:var(--primary)}
.mobile-search{display:none;padding:0 0 16px}
.mobile-search.open{display:block}
.mobile-search .inner{display:flex;align-items:center;gap:8px;height:46px;padding:0 6px 0 16px;border-radius:999px;background:var(--surface);border:1px solid var(--line)}
.mobile-search input{flex:1;background:transparent;border:0;outline:none;color:var(--text-1);font-size:14px}
.mobile-search input::placeholder{color:var(--text-3)}
.mobile-search .search-btn{border:0;padding:9px 16px;border-radius:999px;font-size:13px;font-weight:600;color:#04140f;background:linear-gradient(135deg,var(--primary),var(--primary-deep))}
.mobile-search .chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.drawer-mask{position:fixed;inset:0;background:rgba(4,7,14,.7);backdrop-filter:blur(2px);z-index:55;opacity:0;visibility:hidden;transition:opacity .25s ease}
.drawer-mask.show{opacity:1;visibility:visible}

/* ---------- hero ---------- */
.cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.cat-hero::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;opacity:.30}
.cat-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,22,.74),rgba(7,11,22,.97))}
.cat-hero .inner{position:relative;z-index:1;padding:72px 0 56px}
.crumbs{font-size:13px;color:var(--text-3);display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:22px}
.crumbs a{color:var(--text-3)}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:rgba(107,124,146,.6)}
.crumbs .now{color:var(--text-2)}
.cat-hero h1{font-size:clamp(30px,4.2vw,52px);line-height:1.15;font-weight:800;letter-spacing:-.01em;max-width:900px}
.cat-hero .lead{margin-top:18px;font-size:17px;line-height:1.8;color:var(--text-2);max-width:640px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.pill{display:inline-flex;align-items:center;gap:7px;font-size:13px;padding:7px 14px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--text-2)}
.pill i{color:var(--primary);font-size:12px}
.pill.violet{border-color:rgba(108,92,255,.38);color:#cfc9ff}
.pill.violet i{color:var(--violet)}

/* ---------- chip wall ---------- */
.chip-wall{margin-top:44px;padding:26px;border-radius:var(--r-card);background:var(--bg-1);border:1px solid var(--line);box-shadow:var(--shadow-card)}
.chip-wall .cw-title{font-size:13px;color:var(--text-3);margin-bottom:16px;display:flex;align-items:center;gap:8px}
.chip-wall .cw-title i{color:var(--violet)}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.chip{display:inline-flex;align-items:center;gap:6px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--text-2);transition:all .2s ease;cursor:pointer}
.chip:hover{background:var(--primary);border-color:var(--primary);color:#04140f;box-shadow:0 10px 26px -12px rgba(43,227,176,.75)}
.chip-lg{font-size:15px;padding:10px 20px;font-weight:600;color:var(--text-1)}
.chip-md{font-size:14px;padding:8px 16px}
.chip-sm{font-size:13px;padding:6px 14px}
.chip-violet{border-color:rgba(108,92,255,.42);color:#cfc9ff}
.chip-violet:hover{background:var(--violet);border-color:var(--violet);color:#fff;box-shadow:0 10px 26px -12px rgba(108,92,255,.8)}

/* ---------- steps ---------- */
.steps{border-top:1px solid var(--line)}
.step{display:grid;grid-template-columns:110px 1fr;gap:24px;align-items:start;padding:28px 0;border-bottom:1px solid var(--line)}
.step-num{font-size:38px;line-height:1;font-weight:800;color:transparent;-webkit-text-stroke:1px rgba(43,227,176,.6);font-variant-numeric:tabular-nums;padding-top:6px}
.step h3{font-size:19px;margin-bottom:8px}
.step p{font-size:15px;line-height:1.85;color:var(--text-2);max-width:760px}
.step .tag{display:inline-block;margin-top:10px;font-size:11px;letter-spacing:.06em;padding:3px 10px;border-radius:999px;border:1px solid rgba(108,92,255,.4);color:#cfc9ff}

/* ---------- split feature ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.split .cover{border-radius:18px;overflow:hidden;border:1px solid var(--line);position:relative;background:var(--bg-2);box-shadow:var(--shadow-card)}
.split .cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.3,1)}
.split .cover:hover img{transform:scale(1.04)}
.split .cover .mask{position:absolute;inset:auto 0 0 0;padding:16px 18px;background:linear-gradient(180deg,transparent,rgba(7,11,22,.92));font-size:13px;color:var(--text-1)}
.check-list{margin-top:22px;display:flex;flex-direction:column;gap:14px}
.check-list li{display:flex;gap:12px;font-size:15px;line-height:1.8}
.check-list i{color:var(--primary);margin-top:6px;font-size:13px}
.check-list strong{color:var(--text-1);font-weight:600}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 40px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;background:transparent;border:0;cursor:pointer;padding:20px 0;font-size:16px;font-weight:600;color:var(--text-1);transition:color .2s ease}
.faq-q:hover{color:var(--primary)}
.faq-ico{flex-shrink:0;width:24px;height:24px;border-radius:999px;border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:11px;transition:transform .22s ease,background .22s ease}
.faq-item.open .faq-ico{transform:rotate(45deg);background:rgba(43,227,176,.14)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-item.open .faq-a{max-height:300px}
.faq-a p{padding:0 34px 20px 0;font-size:15px;line-height:1.9;color:var(--text-2)}

/* ---------- cta ---------- */
.cta-wrap{max-width:820px;margin:0 auto;padding:36px;border-radius:var(--r-card);background:linear-gradient(160deg,rgba(43,227,176,.09),rgba(108,92,255,.09));border:1px solid var(--line-strong);box-shadow:var(--shadow-card);backdrop-filter:blur(10px)}
.cta-wrap h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:10px}
.cta-wrap .cta-desc{font-size:15px;line-height:1.8;color:var(--text-2);max-width:560px}
.form-row{display:flex;gap:12px;margin-top:22px}
.form-row input{flex:1;height:48px;padding:0 16px;border-radius:10px;background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-1);font-size:15px;outline:none;transition:border-color .2s ease,box-shadow .2s ease}
.form-row input::placeholder{color:var(--text-3)}
.form-row input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,227,176,.14)}
.form-row input.error{border-color:var(--alert);box-shadow:0 0 0 3px rgba(255,122,69,.14)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;cursor:pointer;font-size:15px;font-weight:600;padding:0 26px;height:48px;border-radius:var(--r-btn);transition:all .2s cubic-bezier(.2,.7,.3,1);white-space:nowrap}
.btn-primary{color:#04140f;background:linear-gradient(135deg,var(--primary),var(--primary-deep));box-shadow:0 8px 30px -8px rgba(43,227,176,.55)}
.btn-primary:hover{box-shadow:0 10px 36px -6px rgba(43,227,176,.75);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px -8px rgba(43,227,176,.6)}
.btn-ghost{color:var(--text-1);background:var(--surface);border:1px solid var(--line-strong)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}
.agree{display:flex;align-items:flex-start;gap:10px;margin-top:16px;font-size:13px;color:var(--text-3);line-height:1.7}
.agree input{appearance:none;width:16px;height:16px;margin-top:4px;border-radius:5px;border:1px solid var(--line-strong);background:var(--surface);cursor:pointer;flex-shrink:0;position:relative;transition:all .2s ease}
.agree input:checked{background:var(--primary);border-color:var(--primary)}
.agree input:checked::after{content:"\2713";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:11px;color:#04140f;font-weight:700}
.agree a{color:var(--primary)}
.form-tip{margin-top:14px;font-size:13px;min-height:20px}
.form-tip.err{color:var(--alert)}
.form-tip.ok{color:var(--primary)}

/* ---------- related ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.rel-card{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:18px 20px;border-radius:var(--r-sm);background:var(--bg-1);border:1px solid var(--line);color:var(--text-1);font-size:15px;font-weight:600;transition:all .2s cubic-bezier(.2,.7,.3,1)}
.rel-card i{color:var(--text-3);font-size:12px;transition:all .2s ease}
.rel-card:hover{transform:translateY(-4px);border-color:var(--line-strong);color:var(--primary)}
.rel-card:hover i{color:var(--primary);transform:translateX(3px)}

/* ---------- footer ---------- */
.site-footer{margin-top:20px;border-top:1px solid var(--line);background:var(--bg-1);padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--text-2);max-width:320px}
.foot-title{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px}
.foot-list li{margin-bottom:11px}
.foot-list a{font-size:14px;color:var(--text-2)}
.foot-list a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
.foot-bottom{margin-top:52px;padding:22px 0;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px)}
.reveal.in{opacity:1;transform:none;transition:opacity .4s ease,transform .4s cubic-bezier(.2,.7,.3,1)}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none}
  *{animation:none !important;transition:none !important}
}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .nav-links{gap:18px;font-size:14px}
}
@media (max-width:1024px){
  .nav-search{max-width:400px}
  .nav-actions{display:flex}
  .nav-links{position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);flex-direction:column;align-items:stretch;gap:0;padding:84px 20px 28px;margin:0;background:rgba(9,14,26,.98);border-left:1px solid var(--line);transform:translateX(102%);transition:transform .28s cubic-bezier(.2,.7,.3,1);z-index:58;overflow-y:auto;font-size:16px}
  .nav-links.open{transform:translateX(0)}
  .nav-links a{padding:14px 2px;border-bottom:1px solid var(--line);font-size:16px}
  .nav-links a.active::after{display:none}
  .nav-links a.active{color:var(--primary)}
  .nav-cta{margin-top:20px;justify-content:center;border:1px solid var(--line-strong) !important;padding:13px 16px !important}
  .split{grid-template-columns:1fr;gap:28px}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:64px 0}
  .nav-search{display:none}
  .cat-hero .inner{padding:48px 0 40px}
  .cat-hero .lead{font-size:16px}
  .faq-grid{grid-template-columns:1fr;gap:0}
  .cta-wrap{padding:26px 20px}
  .form-row{flex-direction:column}
  .form-row .btn{width:100%}
  .step{grid-template-columns:64px 1fr;gap:16px}
  .step-num{font-size:28px}
  .chip-wall{padding:20px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .header-inner{height:68px;gap:12px}
  .brand-sub{display:none}
  .brand-name{font-size:16px}
  .topbar-text{font-size:12px}
  .rel-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .hero-badges .pill{font-size:12px}
}

/* roulang page: category3 */
:root{
    --bg-0:#070B16;
    --bg-1:#0C1424;
    --bg-2:#101A2E;
    --surface:rgba(255,255,255,.04);
    --line:rgba(120,220,200,.14);
    --line-strong:rgba(120,220,200,.28);
    --primary:#2BE3B0;
    --primary-deep:#12A886;
    --violet:#6C5CFF;
    --alert:#FF7A45;
    --text-1:#ECF3F8;
    --text-2:#9FB0C4;
    --text-3:#6B7C92;
    --r-card:16px;
    --r-btn:12px;
    --r-chip:999px;
    --shadow-card:0 1px 0 rgba(255,255,255,.04) inset, 0 18px 40px -22px rgba(0,0,0,.8);
    --ease:cubic-bezier(.2,.7,.3,1);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--bg-0);
    color:var(--text-2);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.85;
    overflow-x:hidden;
    background-image:
      radial-gradient(900px 420px at 78% -8%, rgba(43,227,176,.10), transparent 62%),
      radial-gradient(700px 380px at 4% 6%, rgba(108,92,255,.08), transparent 60%),
      linear-gradient(rgba(120,220,200,.035) 1px, transparent 1px),
      linear-gradient(90deg, rgba(120,220,200,.035) 1px, transparent 1px);
    background-size:auto, auto, 64px 64px, 64px 64px;
  }
  h1,h2,h3,h4,p,ul,ol,li,figure{margin:0;padding:0;}
  ul,ol{list-style:none;}
  a{color:inherit;text-decoration:none;transition:color .18s var(--ease), background-color .18s var(--ease), border-color .18s var(--ease);}
  img{max-width:100%;display:block;}
  button,input{font:inherit;color:inherit;}
  button{background:none;border:none;cursor:pointer;}
  a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
    outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;
  }
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
  .num,.countdown{font-variant-numeric:tabular-nums;}

  /* ============ 顶部提示条 ============ */
  .topbar{
    background:linear-gradient(90deg, rgba(108,92,255,.14), rgba(43,227,176,.10) 55%, rgba(255,122,69,.10));
    border-bottom:1px solid var(--line);
    min-height:44px;
  }
  .topbar-inner{
    display:flex;align-items:center;gap:16px;
    min-height:44px;padding:6px 24px;
  }
  .topbar-tag{
    flex:none;font-size:12px;font-weight:700;color:#04211A;
    background:linear-gradient(135deg,var(--primary),var(--primary-deep));
    border-radius:var(--r-chip);padding:2px 10px;line-height:1.6;
  }
  .topbar-text{font-size:13px;color:var(--text-2);white-space:nowrap;}
  .countdown{
    display:flex;align-items:center;gap:4px;margin-left:auto;
    font-size:19px;font-weight:800;color:var(--alert);
    letter-spacing:.02em;font-family:ui-monospace,"HarmonyOS Sans SC",monospace;
  }
  .cd-sep{animation:blink 1s steps(1,end) infinite;opacity:.9;}
  @keyframes blink{0%,49%{opacity:.9}50%,100%{opacity:.28}}
  .topbar-btn{
    flex:none;font-size:13px;padding:6px 16px;border-radius:var(--r-chip);
    border:1px solid var(--line-strong);color:var(--text-1);background:var(--surface);
  }
  .topbar-btn:hover{border-color:var(--primary);color:var(--primary);}

  /* ============ 导航 ============ */
  .site-header{position:sticky;top:0;z-index:60;background:rgba(7,11,22,.92);border-bottom:1px solid var(--line);transition:background-color .2s var(--ease), backdrop-filter .2s var(--ease);}
  .site-header.scrolled{background:rgba(7,11,22,.82);backdrop-filter:blur(10px);}
  .nav-inner{display:flex;align-items:center;gap:22px;padding:14px 24px;transition:padding .2s var(--ease);}
  .site-header.scrolled .nav-inner{padding-top:10px;padding-bottom:10px;}
  .brand{display:flex;align-items:center;gap:10px;flex:none;}
  .brand-mark{
    width:40px;height:40px;flex:none;border-radius:12px;
    display:flex;align-items:center;justify-content:center;
    font-size:14px;font-weight:800;color:#04211A;letter-spacing:-.02em;
    background:linear-gradient(135deg,var(--primary),var(--primary-deep));
    box-shadow:0 8px 24px -10px rgba(43,227,176,.7);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.25;}
  .brand-name{font-size:16px;font-weight:800;color:var(--text-1);letter-spacing:-.01em;}
  .brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.02em;}

  .nav-search{
    position:relative;flex:1 1 auto;max-width:560px;min-width:260px;
    display:flex;align-items:center;gap:8px;
    background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-chip);padding:5px 5px 5px 16px;
    transition:border-color .18s var(--ease), box-shadow .18s var(--ease);
  }
  .nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,227,176,.16);}
  .nav-search .search-icon{color:var(--text-3);font-size:14px;transition:color .18s var(--ease);}
  .nav-search:focus-within .search-icon{color:var(--primary);}
  .nav-search input{
    flex:1;min-width:0;background:transparent;border:none;outline:none;
    font-size:14.5px;color:var(--text-1);padding:8px 0;
  }
  .nav-search input::placeholder{color:var(--text-3);}
  .search-btn{
    flex:none;font-size:14px;font-weight:700;color:#04211A;
    background:linear-gradient(135deg,var(--primary),var(--primary-deep));
    border-radius:var(--r-chip);padding:8px 18px;
    box-shadow:0 8px 26px -10px rgba(43,227,176,.75);
    transition:box-shadow .18s var(--ease), transform .12s var(--ease), filter .18s var(--ease);
  }
  .search-btn:hover{box-shadow:0 10px 34px -8px rgba(43,227,176,.85);filter:brightness(1.06);}
  .search-btn:active{transform:translateY(1px);}

  .nav-links{display:flex;align-items:center;gap:20px;flex:none;}
  .nav-links a{font-size:15px;color:var(--text-2);position:relative;padding:4px 0;white-space:nowrap;}
  .nav-links a:hover{color:var(--primary);}
  .nav-links a.active{color:var(--text-1);font-weight:700;}
  .nav-links a.active::after{
    content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
    background:linear-gradient(90deg,var(--primary),var(--primary-deep));
  }
  .nav-cta{
    display:inline-flex;align-items:center;gap:7px;
    font-size:14px;font-weight:700;color:#04211A !important;
    background:linear-gradient(135deg,var(--primary),var(--primary-deep));
    border-radius:var(--r-btn);padding:9px 18px;
    box-shadow:0 8px 30px -8px rgba(43,227,176,.55);
    transition:box-shadow .18s var(--ease), transform .12s var(--ease), filter .18s var(--ease);
  }
  .nav-cta:hover{box-shadow:0 12px 36px -8px rgba(43,227,176,.75);filter:brightness(1.06);}
  .nav-cta:active{transform:translateY(1px);}

  .icon-btn{
    display:none;width:42px;height:42px;flex:none;border-radius:12px;
    border:1px solid var(--line);background:var(--surface);color:var(--text-1);
    align-items:center;justify-content:center;font-size:16px;
  }
  .icon-btn:hover{border-color:var(--line-strong);color:var(--primary);}

  /* 搜索建议面板 */
  .search-panel{
    position:absolute;left:24px;right:24px;top:100%;margin-top:10px;
    background:rgba(16,26,46,.96);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-card);padding:18px;display:none;z-index:70;
  }
  .search-panel.open{display:block;}
  .panel-title{font-size:12.5px;color:var(--text-3);letter-spacing:.06em;margin-bottom:10px;}
  .chip-row{display:flex;flex-wrap:wrap;gap:8px;}
  .chip{
    display:inline-flex;align-items:center;font-size:13px;color:var(--text-2);
    border:1px solid var(--line);border-radius:var(--r-chip);padding:6px 14px;background:var(--surface);
  }
  .chip:hover{color:var(--primary);border-color:var(--line-strong);background:rgba(43,227,176,.08);}
  .panel-result{margin-top:16px;border-top:1px solid var(--line);padding-top:14px;}
  .result-row{display:flex;align-items:center;gap:12px;padding:8px 6px;border-radius:10px;}
  .result-row:hover{background:rgba(255,255,255,.04);}
  .result-row img{width:40px;height:40px;border-radius:10px;object-fit:cover;flex:none;}
  .result-row b{display:block;font-size:14px;color:var(--text-1);font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
  .result-row span{font-size:12px;color:var(--text-3);}

  /* 移动端抽屉 */
  .drawer{
    position:fixed;inset:0 0 0 auto;width:min(320px,86vw);z-index:90;
    background:var(--bg-1);border-left:1px solid var(--line);
    transform:translateX(102%);transition:transform .26s var(--ease);
    display:flex;flex-direction:column;padding:22px;
  }
  .drawer.open{transform:translateX(0);}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
  .drawer a.drawer-link{
    display:block;padding:13px 14px;border-radius:12px;border:1px solid transparent;
    font-size:15px;color:var(--text-2);margin-bottom:6px;
  }
  .drawer a.drawer-link:hover,.drawer a.drawer-link.active{
    color:var(--text-1);background:var(--surface);border-color:var(--line);
  }
  .drawer-cta{margin-top:auto;}
  .mask{position:fixed;inset:0;background:rgba(3,6,12,.66);opacity:0;pointer-events:none;transition:opacity .26s var(--ease);z-index:80;}
  .mask.open{opacity:1;pointer-events:auto;}

  /* ============ 公共按钮 / 标签 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    font-size:15px;font-weight:700;border-radius:var(--r-btn);padding:13px 24px;
    transition:box-shadow .18s var(--ease), transform .12s var(--ease), filter .18s var(--ease), background-color .18s var(--ease), border-color .18s var(--ease);
  }
  .btn-primary{
    color:#04211A;background:linear-gradient(135deg,var(--primary),var(--primary-deep));
    box-shadow:0 8px 30px -8px rgba(43,227,176,.55);
  }
  .btn-primary:hover{box-shadow:0 12px 38px -8px rgba(43,227,176,.75);filter:brightness(1.06);}
  .btn-primary:active{transform:translateY(1px);box-shadow:0 6px 20px -10px rgba(43,227,176,.6);}
  .btn-ghost{
    color:var(--text-1);background:var(--surface);border:1px solid var(--line);
  }
  .btn-ghost:hover{border-color:var(--line-strong);color:var(--primary);}
  .btn-ghost:active{transform:translateY(1px);}
  .btn-line{color:var(--text-2);border:1px solid var(--line);border-radius:var(--r-btn);padding:10px 20px;font-size:14px;}
  .btn-line:hover{color:var(--primary);border-color:var(--line-strong);}
  .btn[disabled],.btn:disabled{opacity:.45;box-shadow:none;pointer-events:none;}

  .badge{
    display:inline-flex;align-items:center;gap:5px;
    font-size:11.5px;line-height:1;padding:6px 11px;border-radius:var(--r-chip);
    border:1px solid transparent;font-weight:600;
  }
  .badge-violet{color:#C7C0FF;background:rgba(108,92,255,.16);border-color:rgba(108,92,255,.4);}
  .badge-cyan{color:#8DF0D6;background:rgba(43,227,176,.13);border-color:rgba(43,227,176,.38);}
  .badge-alert{color:#FFC0A3;background:rgba(255,122,69,.14);border-color:rgba(255,122,69,.4);}

  /* ============ 面包屑 ============ */
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
  .crumb a{color:var(--text-3);}
  .crumb a:hover{color:var(--primary);}
  .crumb .sep{color:rgba(120,220,200,.35);}
  .crumb .cur{color:var(--text-2);}

  /* ============ Hero ============ */
  .page-hero{
    position:relative;overflow:hidden;
    padding:36px 0 46px;
    border-bottom:1px solid var(--line);
    background:
      linear-gradient(180deg, rgba(7,11,22,.62) 0%, rgba(7,11,22,.90) 62%, var(--bg-0) 100%),
      url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  }
  .page-hero::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
    background:linear-gradient(90deg,transparent,rgba(43,227,176,.5),transparent);
  }
  .hero-grid{display:grid;grid-template-columns:1.45fr .85fr;gap:32px;align-items:end;margin-top:24px;}
  .hero-eyebrow{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--primary);letter-spacing:.08em;margin-bottom:14px;}
  .hero-eyebrow i{font-size:12px;}
  .page-hero h1{
    font-size:clamp(30px,4.2vw,52px);line-height:1.15;font-weight:800;
    letter-spacing:-.01em;color:var(--text-1);max-width:18em;
  }
  .hero-sub{margin-top:16px;font-size:17px;line-height:1.75;color:var(--text-2);max-width:34em;}
  .hero-desc{margin-top:10px;font-size:14.5px;color:var(--text-3);}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
  .hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
  .pill{
    display:inline-flex;align-items:center;gap:7px;
    font-size:13px;color:var(--text-2);
    background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-chip);padding:7px 15px;
  }
  .pill i{color:var(--primary);font-size:12px;}

  .hero-side{
    background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
    padding:22px;box-shadow:var(--shadow-card);
  }
  .hero-side .side-title{font-size:14px;font-weight:700;color:var(--text-1);display:flex;align-items:center;gap:8px;margin-bottom:14px;}
  .hero-side .side-title i{color:var(--primary);}
  .stat-row{display:flex;align-items:baseline;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--line);}
  .stat-row:last-child{border-bottom:none;}
  .stat-label{font-size:13.5px;color:var(--text-2);}
  .stat-value{font-size:19px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;}
  .stat-value small{font-size:12px;color:var(--text-3);font-weight:500;margin-left:4px;}

  /* ============ 板块 ============ */
  .section{padding:80px 0;}
  .section.tight{padding:56px 0;}
  .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;flex-wrap:wrap;}
  .sec-title{display:flex;gap:12px;align-items:flex-start;}
  .sec-title::before{
    content:"";flex:none;width:4px;height:22px;border-radius:3px;margin-top:9px;
    background:linear-gradient(180deg,var(--primary),var(--primary-deep));
    box-shadow:0 0 16px rgba(43,227,176,.5);
  }
  .sec-title h2{font-size:clamp(22px,2.6vw,32px);line-height:1.25;font-weight:700;color:var(--text-1);letter-spacing:-.01em;}
  .sec-title p{margin-top:8px;font-size:14.5px;color:var(--text-3);max-width:46em;}
  .sec-more{font-size:14px;color:var(--primary);}
  .sec-more:hover{text-decoration:underline;text-underline-offset:4px;}

  /* ============ 时间轴 ============ */
  .timeline{position:relative;padding-left:58px;}
  .timeline::before{
    content:"";position:absolute;left:19px;top:14px;bottom:14px;width:1px;
    background:linear-gradient(180deg,rgba(43,227,176,.55),rgba(43,227,176,.12) 55%, rgba(108,92,255,.25));
  }
  .tl-item{position:relative;margin-bottom:26px;}
  .tl-item:last-child{margin-bottom:0;}
  .tl-dot{
    position:absolute;left:-45px;top:30px;width:13px;height:13px;border-radius:50%;
    background:var(--primary);
    box-shadow:0 0 0 4px rgba(43,227,176,.14), 0 0 18px rgba(43,227,176,.6);
  }
  .tl-dot.violet{background:var(--violet);box-shadow:0 0 0 4px rgba(108,92,255,.16), 0 0 18px rgba(108,92,255,.55);}
  .tl-card{
    display:grid;grid-template-columns:216px 1fr;gap:24px;align-items:center;
    background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
    padding:20px;box-shadow:var(--shadow-card);
    transition:transform .2s var(--ease), border-color .2s var(--ease);
  }
  .tl-card:hover{transform:translateY(-4px);border-color:var(--line-strong);}
  .tl-item:nth-child(even) .tl-card{grid-template-columns:1fr 216px;}
  .tl-item:nth-child(even) .tl-media{order:2;}
  .tl-item:nth-child(even) .tl-body{order:1;}
  .tl-media{position:relative;border-radius:14px;overflow:hidden;aspect-ratio:16/9;background:var(--bg-1);}
  .tl-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
  .tl-card:hover .tl-media img{transform:scale(1.04);}
  .tl-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,22,.05),rgba(7,11,22,.42));}
  .tl-date{
    display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--text-3);
    font-variant-numeric:tabular-nums;
  }
  .tl-date i{color:var(--primary);font-size:12px;}
  .tl-body h3{font-size:19px;line-height:1.45;font-weight:600;color:var(--text-1);margin:10px 0 8px;}
  .tl-body p{font-size:14.5px;line-height:1.75;color:var(--text-2);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}
  .tl-link{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--primary);margin-top:12px;}
  .tl-link i{transition:transform .18s var(--ease);font-size:12px;}
  .tl-link:hover i{transform:translateX(4px);}

  /* ============ 版本要点序号条 ============ */
  .point-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
  .point{
    background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
    padding:24px 22px;box-shadow:var(--shadow-card);position:relative;overflow:hidden;
    transition:transform .2s var(--ease), border-color .2s var(--ease);
  }
  .point:hover{transform:translateY(-4px);border-color:var(--line-strong);}
  .point .idx{
    font-size:38px;font-weight:800;line-height:1;letter-spacing:-.03em;
    color:transparent;-webkit-text-stroke:1.2px rgba(43,227,176,.55);
    font-family:ui-monospace,"HarmonyOS Sans SC",monospace;
  }
  .point:nth-child(even) .idx{-webkit-text-stroke-color:rgba(108,92,255,.6);}
  .point h3{font-size:17px;font-weight:600;color:var(--text-1);margin:14px 0 8px;}
  .point p{font-size:14px;line-height:1.75;color:var(--text-2);}
  .point .p-ico{position:absolute;right:20px;top:22px;font-size:16px;color:var(--primary);opacity:.55;}

  /* ============ 数据条 ============ */
  .stat-band{
    display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
    background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  }
  .stat-cell{background:var(--bg-1);padding:26px 22px;}
  .stat-cell .big{font-size:30px;font-weight:800;color:var(--text-1);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
  .stat-cell .big em{font-style:normal;color:var(--primary);font-size:16px;margin-left:3px;}
  .stat-cell .cap{font-size:13.5px;color:var(--text-3);margin-top:6px;}

  /* ============ CTA 通栏 ============ */
  .cta-wrap{padding:0 0 80px;}
  .cta-card{
    position:relative;overflow:hidden;
    background:rgba(16,26,46,.72);backdrop-filter:blur(12px);
    border:1px solid var(--line);border-radius:20px;padding:34px;
    box-shadow:0 0 0 1px var(--line) inset, var(--shadow-card);
    display:grid;grid-template-columns:1.5fr 1fr;gap:32px;align-items:center;
  }
  .cta-card::before{
    content:"";position:absolute;right:-120px;top:-140px;width:340px;height:340px;border-radius:50%;
    background:radial-gradient(circle, rgba(43,227,176,.18), transparent 66%);
  }
  .cta-card h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:700;color:var(--text-1);}
  .cta-card .cta-sub{margin-top:12px;font-size:15px;color:var(--text-2);max-width:36em;}
  .cta-form{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
  .field{flex:1 1 240px;min-width:200px;}
  .field input{
    width:100%;height:48px;border-radius:10px;padding:0 16px;
    background:var(--surface);border:1px solid var(--line);color:var(--text-1);
    font-size:14.5px;outline:none;transition:border-color .18s var(--ease), box-shadow .18s var(--ease);
  }
  .field input::placeholder{color:var(--text-3);}
  .field input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,227,176,.16);}
  .field.error input{border-color:var(--alert);box-shadow:0 0 0 3px rgba(255,122,69,.14);}
  .field .tip{display:none;font-size:13px;color:var(--alert);margin-top:7px;}
  .field.error .tip{display:block;}
  .agree{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--text-3);margin-top:14px;cursor:pointer;}
  .agree input{appearance:none;-webkit-appearance:none;width:17px;height:17px;border-radius:5px;border:1px solid var(--line-strong);background:var(--surface);position:relative;flex:none;cursor:pointer;}
  .agree input:checked{background:var(--primary);border-color:var(--primary);}
  .agree input:checked::after{content:"\2713";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:11px;color:#04211A;font-weight:800;}
  .form-ok{display:none;margin-top:14px;font-size:14px;color:var(--primary);}
  .form-ok.show{display:block;}

  .qr-box{
    position:relative;width:100%;max-width:210px;aspect-ratio:1/1;margin:0 auto;
    border-radius:var(--r-card);border:1px solid var(--line);background:var(--bg-2);
    display:flex;align-items:center;justify-content:center;overflow:hidden;
  }
  .qr-box .qr-grid{
    position:absolute;inset:16px;border-radius:10px;
    background-image:linear-gradient(rgba(43,227,176,.22) 1px, transparent 1px),linear-gradient(90deg, rgba(43,227,176,.22) 1px, transparent 1px);
    background-size:14px 14px;opacity:.55;
  }
  .qr-box span{position:relative;font-size:13px;color:var(--text-3);text-align:center;line-height:1.7;padding:0 12px;}
  .qr-cap{font-size:12.5px;color:var(--text-3);text-align:center;margin-top:12px;}

  /* ============ FAQ ============ */
  .faq-list{max-width:860px;margin:0 auto;}
  .faq-item{
    border-bottom:1px solid var(--line);
  }
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 4px;font-size:16px;font-weight:600;color:var(--text-1);
    transition:color .18s var(--ease);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:var(--primary);}
  .faq-item summary .plus{
    flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--line-strong);
    display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:13px;
    transition:transform .2s var(--ease), border-color .2s var(--ease);
  }
  .faq-item[open] summary .plus{transform:rotate(45deg);border-color:var(--primary);}
  .faq-item .ans{padding:0 4px 22px;font-size:15px;line-height:1.9;color:var(--text-2);max-width:52em;}

  /* ============ 相关入口 ============ */
  .rel-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px;}
  .rel-link{
    display:inline-flex;align-items:center;gap:9px;font-size:14px;color:var(--text-2);
    border:1px solid var(--line);border-radius:var(--r-chip);padding:9px 18px;background:var(--surface);
  }
  .rel-link i{font-size:12px;color:var(--primary);}
  .rel-link:hover{color:var(--text-1);border-color:var(--line-strong);background:rgba(43,227,176,.07);}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 0;}
  .foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px;}
  .foot-brand .brand{margin-bottom:16px;}
  .foot-brand p{font-size:14px;line-height:1.8;color:var(--text-2);max-width:26em;}
  .foot-title{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:16px;}
  .foot-list li{margin-bottom:10px;}
  .foot-list a{font-size:14px;color:var(--text-2);}
  .foot-list a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
  .foot-bottom{
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
    border-top:1px solid var(--line);padding:20px 0 26px;font-size:13px;color:var(--text-3);
  }

  /* ============ 入场动画 ============ */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .3s var(--ease), transform .3s var(--ease);}
  .reveal.in{opacity:1;transform:none;}
  @media (prefers-reduced-motion: reduce){
    .reveal{opacity:1;transform:none;transition:none;}
    *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  }

  /* ============ 响应式 ============ */
  @media (max-width:1200px){
    .nav-links{gap:16px;}
    .nav-links a{font-size:14px;}
  }
  @media (max-width:1024px){
    .section{padding:64px 0;}
    .nav-links{display:none;}
    .icon-btn{display:inline-flex;}
    .nav-search{order:3;flex:1 1 100%;max-width:none;min-width:0;margin-top:12px;}
    .nav-inner{flex-wrap:wrap;padding:12px 20px;}
    .hero-grid{grid-template-columns:1fr;gap:26px;align-items:start;}
    .point-grid{grid-template-columns:repeat(2,1fr);}
    .stat-band{grid-template-columns:repeat(2,1fr);}
    .cta-card{grid-template-columns:1fr;padding:28px;}
    .foot-grid{grid-template-columns:1fr 1fr;}
  }
  @media (max-width:860px){
    .tl-card{grid-template-columns:1fr !important;gap:16px;align-items:stretch;}
    .tl-item:nth-child(even) .tl-media{order:0;}
    .tl-item:nth-child(even) .tl-body{order:0;}
  }
  @media (max-width:768px){
    body{font-size:15.5px;}
    .container{padding:0 20px;}
    .section{padding:56px 0;}
    .topbar-text{display:none;}
    .topbar-inner{padding:6px 20px;gap:12px;}
    .countdown{font-size:17px;margin-left:0;}
    .topbar-btn{margin-left:auto;}
    .timeline{padding-left:42px;}
    .timeline::before{left:13px;}
    .tl-dot{left:-35px;top:24px;}
    .hero-side{padding:18px;}
  }
  @media (max-width:640px){
    .container{padding:0 16px;}
    .section{padding:48px 0;}
    .brand-sub{display:none;}
    .nav-inner{padding:12px 16px;gap:12px;}
    .point-grid{grid-template-columns:1fr;}
    .stat-band{grid-template-columns:1fr 1fr;}
    .stat-cell{padding:20px 16px;}
    .stat-cell .big{font-size:24px;}
    .cta-card{padding:22px;border-radius:16px;}
    .cta-form{flex-direction:column;}
    .field{flex:1 1 auto;min-width:0;}
    .cta-form .btn{width:100%;}
    .foot-grid{grid-template-columns:1fr;gap:26px;}
    .foot-bottom{flex-direction:column;align-items:flex-start;}
    .tl-card{padding:16px;}
    .search-panel{left:16px;right:16px;}
    .hero-actions .btn{width:100%;}
  }