/* roulang page: index */
:root{
      --bg:#F7F4EF;
      --bg2:#FAF8F5;
      --ink:#17151A;
      --text:#171717;
      --muted:#62605C;
      --line:rgba(23,23,23,.10);
      --line-dark:rgba(255,255,255,.14);
      --plum:#8B5CF6;
      --plum-soft:rgba(139,92,246,.12);
      --coral:#E8B4A0;
      --radius-xl:34px;
      --radius-lg:24px;
      --radius-md:18px;
      --shadow:0 24px 70px rgba(23,21,26,.10);
      --shadow-hover:0 22px 44px rgba(23,21,26,.16);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 8% 8%, rgba(232,180,160,.32), transparent 30%),
        radial-gradient(circle at 88% 18%, rgba(139,92,246,.13), transparent 26%),
        linear-gradient(180deg,var(--bg2),var(--bg));
      line-height:1.75;
      overflow-x:hidden;
      padding-bottom:0;
    }
    a{color:inherit;text-decoration:none}
    img,svg{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(139,92,246,.22)}
    .site-container{width:min(var(--container), calc(100% - 40px));margin-inline:auto}
    .section{padding:96px 0}
    .section-tight{padding:72px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.64);
      color:#6f4fc9;
      border-radius:999px;
      padding:8px 13px;
      font-size:13px;
      font-weight:700;
      letter-spacing:.02em;
      backdrop-filter:blur(12px);
    }
    .eyebrow:before{content:"";width:8px;height:8px;border-radius:999px;background:var(--plum);box-shadow:0 0 0 5px rgba(139,92,246,.12)}
    .topbar{
      position:sticky;top:0;z-index:50;
      transition:background .25s ease, box-shadow .25s ease, border-color .25s ease;
      border-bottom:1px solid transparent;
      background:rgba(250,248,245,.78);
      backdrop-filter:blur(18px);
    }
    .topbar.scrolled{background:rgba(250,248,245,.94);border-color:var(--line);box-shadow:0 12px 30px rgba(23,21,26,.06)}
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand-mark{
      width:42px;height:42px;border-radius:16px;
      background:linear-gradient(145deg,var(--ink),#343039);
      position:relative;box-shadow:0 14px 24px rgba(23,21,26,.18);
      flex:0 0 auto;
    }
    .brand-mark:before{content:"";position:absolute;left:12px;right:12px;top:12px;height:10px;border:2px solid rgba(255,255,255,.78);border-bottom:0;border-radius:8px 8px 0 0}
    .brand-mark:after{content:"";position:absolute;left:17px;top:18px;width:8px;height:12px;border-radius:8px;background:linear-gradient(180deg,#fff,var(--coral));box-shadow:0 8px 0 rgba(255,255,255,.25)}
    .brand-name{font-weight:900;letter-spacing:-.04em;font-size:18px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:330px}
    .desktop-nav{display:flex;align-items:center;gap:6px;padding:6px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.54)}
    .desktop-nav a{
      position:relative;padding:10px 16px;border-radius:999px;color:var(--muted);font-weight:700;font-size:14px;
      transition:color .2s ease, background .2s ease, transform .2s ease;
    }
    .desktop-nav a:hover{color:var(--ink);background:rgba(23,21,26,.05);transform:translateY(-1px)}
    .desktop-nav a.active{color:#fff;background:var(--ink);box-shadow:0 12px 22px rgba(23,21,26,.18)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:16px;background:#fff;align-items:center;justify-content:center}
    .menu-toggle span,.menu-toggle span:before,.menu-toggle span:after{width:18px;height:2px;background:var(--ink);display:block;border-radius:99px;content:"";position:relative;transition:.2s}
    .menu-toggle span:before{position:absolute;top:-6px}.menu-toggle span:after{position:absolute;top:6px}
    .mobile-panel{display:none;border-top:1px solid var(--line);background:rgba(250,248,245,.98);padding:10px 20px 18px}
    .mobile-panel a{display:block;padding:13px 14px;border-radius:16px;font-weight:800;color:var(--muted)}
    .mobile-panel a.active,.mobile-panel a:hover{background:#fff;color:var(--ink)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:10px;
      border-radius:999px;padding:13px 20px;
      font-weight:850;line-height:1;
      border:1px solid transparent;
      transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
      white-space:nowrap;
    }
    .btn:focus-visible,.download-pill:focus-visible,.faq-btn:focus-visible,.desktop-nav a:focus-visible,.bottom-tab a:focus-visible,input:focus-visible{outline:3px solid rgba(139,92,246,.35);outline-offset:3px}
    .btn-primary{background:linear-gradient(135deg,var(--ink),#312d35);color:#fff;box-shadow:0 14px 28px rgba(23,21,26,.18)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
    .btn-secondary{background:rgba(255,255,255,.72);border-color:var(--line);color:var(--ink)}
    .btn-secondary:hover{background:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(23,21,26,.08)}
    .hero{position:relative;padding:72px 0 44px;overflow:hidden}
    .hero:before{
      content:"";position:absolute;inset:0;
      background-image:linear-gradient(rgba(23,23,23,.045) 1px, transparent 1px),linear-gradient(90deg, rgba(23,23,23,.045) 1px, transparent 1px);
      background-size:44px 44px;mask-image:linear-gradient(180deg,rgba(0,0,0,.75),transparent 84%);
      pointer-events:none;
    }
    .hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.04fr) minmax(360px,.86fr);gap:52px;align-items:center}
    h1,h2,h3{line-height:1.12;margin:0;color:var(--ink);letter-spacing:-.055em}
    h1{font-size:clamp(38px,6vw,64px);font-weight:950}
    h2{font-size:clamp(30px,4vw,42px);font-weight:930}
    h3{font-size:21px;font-weight:900}
    .lead{font-size:18px;color:var(--muted);max-width:650px;margin-top:22px}
    .hero-list{display:grid;gap:12px;margin:28px 0 30px;padding:0;list-style:none}
    .hero-list li{display:flex;gap:12px;align-items:flex-start;color:#3c3936;font-weight:650}
    .check{width:23px;height:23px;border-radius:9px;background:rgba(139,92,246,.12);color:#6f4fc9;display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;margin-top:2px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
    .device{
      border-radius:38px;background:#17151A;padding:16px;
      box-shadow:0 34px 80px rgba(23,21,26,.24);
      border:1px solid rgba(255,255,255,.12);
      transform:rotate(1deg);
      position:relative;
    }
    .device:before{content:"";position:absolute;inset:-24px;background:radial-gradient(circle,rgba(139,92,246,.22),transparent 58%);z-index:-1;filter:blur(6px);animation:glow 5s ease-in-out infinite alternate}
    @keyframes glow{from{transform:translate(0,0) scale(.96)}to{transform:translate(-10px,8px) scale(1.04)}}
    .screen{border-radius:28px;background:linear-gradient(180deg,#fff,#F5F1EB);padding:18px;min-height:470px;overflow:hidden}
    .screen-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
    .dot-group{display:flex;gap:7px}.dot-group span{width:9px;height:9px;border-radius:99px;background:#d8d2ca}.dot-group span:first-child{background:var(--coral)}
    .status-chip{font-size:12px;font-weight:900;color:#5b457e;border:1px solid rgba(139,92,246,.22);background:rgba(139,92,246,.09);border-radius:999px;padding:6px 10px}
    .app-card{border:1px solid var(--line);background:#fff;border-radius:22px;padding:16px;margin-bottom:12px;box-shadow:0 10px 26px rgba(23,21,26,.06)}
    .progress{height:9px;border-radius:999px;background:#eee7df;overflow:hidden}
    .progress span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--plum),var(--coral))}
    .mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}
    .mini-tile{border-radius:20px;background:#f3eee7;border:1px solid var(--line);padding:14px;min-height:92px}
    .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:46px}
    .stat{border:1px solid var(--line);background:rgba(255,255,255,.62);border-radius:24px;padding:18px;box-shadow:0 12px 30px rgba(23,21,26,.05)}
    .stat strong{font-size:27px;display:block;letter-spacing:-.04em}.stat span{color:var(--muted);font-weight:700;font-size:13px}
    .section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:34px}
    .section-head p{color:var(--muted);max-width:560px;margin:0}
    .feature-layout{display:grid;grid-template-columns:minmax(0,.92fr) minmax(360px,1.08fr);gap:24px;align-items:stretch}
    .steps{display:grid;gap:16px}
    .feature-card,.plain-card,.review-card,.faq-item{
      border:1px solid var(--line);
      background:rgba(255,255,255,.72);
      border-radius:var(--radius-lg);
      box-shadow:0 12px 34px rgba(23,21,26,.06);
      transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .feature-card{padding:22px;display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start}
    .feature-card:hover,.plain-card:hover,.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(139,92,246,.25)}
    .icon-box{width:46px;height:46px;border-radius:17px;background:var(--plum-soft);color:#6f4fc9;display:flex;align-items:center;justify-content:center;font-weight:950}
    .tag{display:inline-flex;align-items:center;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:850;border:1px solid rgba(139,92,246,.18);background:rgba(139,92,246,.08);color:#6846be}
    .feature-shot{border-radius:34px;background:var(--ink);padding:24px;color:#fff;min-height:100%;position:relative;overflow:hidden}
    .feature-shot:after{content:"";position:absolute;right:-80px;top:-80px;width:220px;height:220px;border-radius:999px;background:rgba(232,180,160,.22);filter:blur(4px)}
    .hud-row{display:flex;justify-content:space-between;gap:14px;border:1px solid var(--line-dark);background:rgba(255,255,255,.05);border-radius:22px;padding:15px;margin-top:14px;position:relative;z-index:1}
    .hud-row small{color:rgba(255,255,255,.62);display:block}.hud-row b{font-size:20px}
    .shots-wrap{overflow:hidden}
    .carousel{display:flex;gap:18px;transition:transform .35s ease}
    .shot-card{min-width:31%;border:1px solid var(--line);background:#fff;border-radius:30px;padding:18px;box-shadow:0 15px 36px rgba(23,21,26,.08);transform:scale(.96);transition:.25s}
    .shot-card.active{transform:scale(1);border-color:rgba(139,92,246,.32)}
    .abstract-ui{height:245px;border-radius:24px;background:linear-gradient(145deg,#1b1820,#35303a);padding:18px;display:grid;gap:12px;align-content:start}
    .ui-line{height:12px;border-radius:99px;background:rgba(255,255,255,.18)}.ui-line.short{width:58%}.ui-panel{height:78px;border-radius:18px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.12)}
    .carousel-controls{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:22px}
    .round-btn{width:42px;height:42px;border-radius:999px;border:1px solid var(--line);background:#fff;display:flex;align-items:center;justify-content:center;transition:.2s}
    .round-btn:hover{transform:translateY(-2px);box-shadow:0 10px 20px rgba(23,21,26,.1)}
    .dot{width:9px;height:9px;border-radius:99px;background:#d8d2ca}.dot.active{background:var(--plum);width:22px}
    .requirements{background:var(--ink);color:#fff;border-radius:40px;padding:36px;position:relative;overflow:hidden}
    .requirements h2{color:#fff}.requirements p{color:rgba(255,255,255,.68)}
    .req-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:26px}
    .req-card{border:1px solid var(--line-dark);background:rgba(255,255,255,.055);border-radius:26px;padding:22px}
    .req-list{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:12px}
    .req-list li{display:flex;gap:10px;color:rgba(255,255,255,.78)}
    .reviews{columns:3 260px;column-gap:18px}
    .review-card{break-inside:avoid;padding:20px;margin:0 0 18px}
    .avatar{width:42px;height:42px;border-radius:16px;background:linear-gradient(135deg,var(--plum),var(--coral));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:950}
    .review-top{display:flex;align-items:center;gap:12px;margin-bottom:12px}
    .download-panel{
      border-radius:42px;padding:42px;
      background:
        radial-gradient(circle at 82% 20%,rgba(139,92,246,.18),transparent 32%),
        linear-gradient(135deg,#fff,var(--bg2));
      border:1px solid var(--line);box-shadow:var(--shadow)
    }
    .download-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:28px}
    .download-pill{
      border:1px solid var(--line);background:#fff;border-radius:24px;padding:18px;text-align:left;
      display:flex;gap:13px;align-items:center;transition:.2s;
    }
    .download-pill:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(139,92,246,.24)}
    .platform-icon{width:42px;height:42px;border-radius:16px;background:#17151A;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:950}
    .download-pill strong{display:block;line-height:1.15}.download-pill span{display:block;color:var(--muted);font-size:12px;margin-top:3px}
    .faq-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:24px;align-items:start}
    .faq-list{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-btn{width:100%;border:0;background:transparent;padding:20px 22px;display:flex;justify-content:space-between;gap:18px;align-items:center;text-align:left;font-weight:900;color:var(--ink)}
    .faq-icon{width:26px;height:26px;border-radius:999px;background:var(--plum-soft);display:flex;align-items:center;justify-content:center;color:#6f4fc9;flex:0 0 auto;transition:.2s}
    .faq-content{max-height:0;overflow:hidden;transition:max-height .25s ease}
    .faq-content div{margin:0 18px 18px;padding:16px 18px;border-left:3px solid var(--plum);border-radius:16px;background:rgba(139,92,246,.06);color:var(--muted)}
    .faq-item.open .faq-content{max-height:220px}.faq-item.open .faq-icon{transform:rotate(45deg)}
    .footer{background:#141217;color:#fff;padding:52px 0 92px;margin-top:40px}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:28px}
    .footer p,.footer a,.footer small{color:rgba(255,255,255,.66)}
    .footer a:hover{color:#fff}
    .footer-links{display:grid;gap:9px}
    .footer-title{font-weight:900;color:#fff;margin-bottom:12px}
    .bottom-line{border-top:1px solid rgba(255,255,255,.12);margin-top:32px;padding-top:18px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}
    .bottom-tab{
      display:none;position:fixed;left:0;right:0;bottom:0;z-index:60;
      padding:9px 14px calc(9px + env(safe-area-inset-bottom));
      background:rgba(250,248,245,.96);backdrop-filter:blur(18px);border-top:1px solid var(--line);
      box-shadow:0 -12px 30px rgba(23,21,26,.08)
    }
    .bottom-tab nav{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
    .bottom-tab a{display:flex;flex-direction:column;align-items:center;gap:3px;padding:7px 4px;border-radius:16px;color:#77706a;font-size:12px;font-weight:850}
    .bottom-tab a svg{width:20px;height:20px}
    .bottom-tab a.active{background:#fff;color:var(--ink);box-shadow:0 8px 18px rgba(23,21,26,.08)}
    @media (max-width:1024px){
      .hero-grid,.feature-layout,.faq-grid{grid-template-columns:1fr}
      .device{max-width:560px;margin-inline:auto}
      .stats{grid-template-columns:repeat(2,1fr)}
      .download-grid{grid-template-columns:repeat(2,1fr)}
      .shot-card{min-width:48%}
      .desktop-nav,.nav-actions .btn{display:none}
      .menu-toggle{display:flex}
      .mobile-panel.open{display:block}
    }
    @media (max-width:768px){
      body{padding-bottom:78px}
      .site-container{width:min(100% - 28px,var(--container))}
      .section{padding:66px 0}.section-tight{padding:52px 0}
      .nav-wrap{height:66px}.brand-name{max-width:230px;font-size:16px}
      .hero{padding:48px 0 30px}
      .hero-actions .btn{width:100%}
      .section-head{display:block}.section-head p{margin-top:14px}
      .req-grid,.footer-grid{grid-template-columns:1fr}
      .requirements,.download-panel{border-radius:30px;padding:25px}
      .download-grid{grid-template-columns:1fr}
      .bottom-tab{display:block}
      .shot-card{min-width:86%}
    }
    @media (max-width:520px){
      h1{font-size:36px}
      .stats{grid-template-columns:1fr}
      .mini-grid{grid-template-columns:1fr}
      .screen{min-height:410px}
      .feature-card{grid-template-columns:1fr}
      .footer{padding-bottom:110px}
      .brand-name{max-width:190px}
    }

/* roulang page: category1 */
:root{
      --bg:#F7F4EF;
      --bg-soft:#FAF8F5;
      --ink:#171717;
      --muted:#62605C;
      --deep:#17151A;
      --accent:#A85572;
      --accent-2:#8B5CF6;
      --warm:#E8B4A0;
      --warm-soft:#F1D6C8;
      --line:rgba(23,23,23,.10);
      --line-strong:rgba(23,23,23,.16);
      --card:#FFFDF9;
      --radius-xl:34px;
      --radius-lg:26px;
      --radius-md:18px;
      --shadow:0 24px 70px rgba(23,21,26,.10);
      --shadow-soft:0 14px 34px rgba(23,21,26,.07);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 12% 8%, rgba(232,180,160,.26), transparent 28%),
        radial-gradient(circle at 88% 0%, rgba(168,85,114,.12), transparent 28%),
        linear-gradient(180deg,var(--bg) 0%,var(--bg-soft) 52%,#F4EFE8 100%);
      line-height:1.75;
      min-height:100vh;
      padding-bottom:0;
    }
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer}
    img,svg{max-width:100%;display:block}
    ::selection{background:rgba(168,85,114,.18)}
    .site-container{
      width:min(calc(100% - 40px),var(--container));
      margin-inline:auto;
    }
    .topbar{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:saturate(160%) blur(18px);
      background:rgba(247,244,239,.82);
      border-bottom:1px solid rgba(23,23,23,.08);
      transition:box-shadow .25s ease, background .25s ease;
    }
    .topbar.is-scrolled{
      background:rgba(250,248,245,.94);
      box-shadow:0 12px 34px rgba(23,21,26,.08);
    }
    .nav-wrap{
      height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:0;
      font-weight:900;
      letter-spacing:-.03em;
      color:var(--ink);
    }
    .brand-mark{
      width:42px;
      height:42px;
      flex:0 0 auto;
      border-radius:15px;
      background:
        linear-gradient(135deg,var(--deep),#30242b 55%,var(--accent)),
        radial-gradient(circle at 70% 18%,rgba(255,255,255,.55),transparent 18%);
      position:relative;
      box-shadow:0 12px 28px rgba(23,21,26,.18);
      overflow:hidden;
    }
    .brand-mark:before{
      content:"";
      position:absolute;
      width:17px;
      height:17px;
      left:12px;
      top:9px;
      border:2px solid rgba(255,255,255,.82);
      border-top:0;
      border-left:0;
      transform:rotate(45deg);
      border-radius:2px;
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      left:11px;
      right:11px;
      bottom:10px;
      height:3px;
      border-radius:999px;
      background:rgba(255,255,255,.72);
    }
    .brand-name{
      max-width:360px;
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
      font-size:18px;
    }
    .desktop-nav{
      display:flex;
      align-items:center;
      gap:6px;
      padding:6px;
      border:1px solid rgba(23,23,23,.08);
      background:rgba(255,253,249,.56);
      border-radius:999px;
    }
    .desktop-nav a{
      position:relative;
      padding:10px 16px;
      border-radius:999px;
      color:var(--muted);
      font-size:14px;
      font-weight:700;
      transition:background .2s ease,color .2s ease,transform .2s ease;
    }
    .desktop-nav a:hover{
      color:var(--ink);
      background:rgba(23,23,23,.05);
      transform:translateY(-1px);
    }
    .desktop-nav a.active{
      color:#fff;
      background:var(--deep);
      box-shadow:0 10px 24px rgba(23,21,26,.15);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:12px;
      flex:0 0 auto;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      border-radius:999px;
      padding:12px 18px;
      border:1px solid transparent;
      font-weight:800;
      font-size:14px;
      line-height:1;
      transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
      outline:none;
      white-space:nowrap;
    }
    .btn:focus-visible,
    .menu-toggle:focus-visible,
    input:focus-visible,
    summary:focus-visible{
      outline:3px solid rgba(168,85,114,.26);
      outline-offset:3px;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--deep),#2b2027 58%,var(--accent));
      color:#fff;
      box-shadow:0 16px 34px rgba(23,21,26,.16);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 44px rgba(23,21,26,.22)}
    .btn-secondary{
      background:rgba(255,253,249,.72);
      border-color:var(--line);
      color:var(--ink);
    }
    .btn-secondary:hover{background:#fff;transform:translateY(-2px);border-color:rgba(168,85,114,.3)}
    .btn-soft{
      background:rgba(168,85,114,.10);
      color:#7a3650;
      border-color:rgba(168,85,114,.16);
    }
    .btn-soft:hover{background:rgba(168,85,114,.16);transform:translateY(-2px)}
    .menu-toggle{
      width:44px;
      height:44px;
      border:1px solid var(--line);
      border-radius:999px;
      display:none;
      align-items:center;
      justify-content:center;
      background:rgba(255,253,249,.72);
    }
    .menu-toggle span,
    .menu-toggle span:before,
    .menu-toggle span:after{
      content:"";
      display:block;
      width:18px;
      height:2px;
      background:var(--ink);
      border-radius:999px;
      transition:transform .2s ease,opacity .2s ease;
    }
    .menu-toggle span:before{transform:translateY(-6px)}
    .menu-toggle span:after{transform:translateY(4px)}
    .menu-toggle.is-open span{background:transparent}
    .menu-toggle.is-open span:before{transform:translateY(2px) rotate(45deg)}
    .menu-toggle.is-open span:after{transform:translateY(0) rotate(-45deg)}
    .mobile-panel{
      display:none;
      width:min(calc(100% - 40px),var(--container));
      margin:0 auto 14px;
      padding:10px;
      border:1px solid var(--line);
      border-radius:24px;
      background:rgba(255,253,249,.92);
      box-shadow:var(--shadow-soft);
    }
    .mobile-panel a{
      display:block;
      padding:13px 14px;
      border-radius:16px;
      color:var(--muted);
      font-weight:800;
    }
    .mobile-panel a.active{
      background:var(--deep);
      color:#fff;
    }
    .section{padding:86px 0}
    .section-tight{padding:58px 0}
    .badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      border-radius:999px;
      padding:8px 12px;
      background:rgba(255,253,249,.72);
      border:1px solid rgba(168,85,114,.16);
      color:#7f3b55;
      font-size:13px;
      font-weight:800;
    }
    .badge-dot{
      width:7px;
      height:7px;
      border-radius:999px;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(168,85,114,.12);
    }
    .hero{
      position:relative;
      overflow:hidden;
      padding:72px 0 54px;
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:24px 0 auto auto;
      width:42vw;
      height:42vw;
      max-width:560px;
      max-height:560px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(168,85,114,.14),transparent 66%);
      pointer-events:none;
      animation:floatGlow 8s ease-in-out infinite alternate;
    }
    @keyframes floatGlow{
      from{transform:translate(0,0) scale(1)}
      to{transform:translate(-32px,18px) scale(1.06)}
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.08fr) minmax(320px,.92fr);
      gap:36px;
      align-items:start;
    }
    .eyebrow{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:10px;
      margin-bottom:22px;
    }
    h1{
      margin:0;
      font-size:clamp(36px,5vw,60px);
      line-height:1.08;
      letter-spacing:-.065em;
      font-weight:950;
      max-width:880px;
    }
    .hero-lead{
      margin:22px 0 0;
      max-width:760px;
      color:var(--muted);
      font-size:18px;
      line-height:1.85;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:30px;
    }
    .mini-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:26px;
    }
    .mini-tags span{
      border:1px solid var(--line);
      background:rgba(255,253,249,.58);
      color:var(--muted);
      border-radius:999px;
      padding:8px 12px;
      font-size:13px;
      font-weight:700;
    }
    .guide-card{
      position:relative;
      border:1px solid rgba(23,23,23,.10);
      border-radius:var(--radius-xl);
      background:linear-gradient(180deg,rgba(255,253,249,.86),rgba(255,253,249,.60));
      box-shadow:var(--shadow);
      padding:24px;
      overflow:hidden;
    }
    .guide-card:before{
      content:"";
      position:absolute;
      width:160px;
      height:160px;
      right:-42px;
      top:-58px;
      background:radial-gradient(circle,rgba(168,85,114,.20),transparent 66%);
    }
    .toc-card{
      position:relative;
      z-index:1;
    }
    .toc-title{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:12px;
      padding-bottom:18px;
      border-bottom:1px solid var(--line);
      font-weight:900;
      letter-spacing:-.02em;
    }
    .toc-list{
      display:grid;
      gap:10px;
      margin-top:18px;
    }
    .toc-list a{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:14px;
      padding:13px 14px;
      border-radius:17px;
      color:var(--muted);
      background:rgba(247,244,239,.64);
      border:1px solid transparent;
      font-weight:800;
      transition:.2s ease;
    }
    .toc-list a:hover{
      color:var(--ink);
      background:#fff;
      border-color:rgba(168,85,114,.18);
      transform:translateX(2px);
    }
    .toc-list a span:last-child{
      width:24px;
      height:24px;
      display:grid;
      place-items:center;
      border-radius:999px;
      background:rgba(23,23,23,.06);
      color:var(--ink);
      font-size:12px;
    }
    .stats-strip{
      margin-top:24px;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:10px;
    }
    .stat{
      border:1px solid var(--line);
      background:rgba(255,253,249,.66);
      border-radius:20px;
      padding:14px;
    }
    .stat strong{
      display:block;
      font-size:22px;
      line-height:1.1;
      letter-spacing:-.04em;
    }
    .stat span{
      color:var(--muted);
      font-size:12px;
      font-weight:700;
    }
    .content-layout{
      display:grid;
      grid-template-columns:276px minmax(0,1fr);
      gap:28px;
      align-items:start;
    }
    .side-nav{
      position:sticky;
      top:100px;
      border:1px solid var(--line);
      background:rgba(255,253,249,.76);
      border-radius:var(--radius-lg);
      padding:14px;
      box-shadow:var(--shadow-soft);
    }
    .side-nav .side-title{
      padding:10px 12px 14px;
      color:var(--ink);
      font-weight:950;
      letter-spacing:-.02em;
    }
    .side-nav a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      padding:12px;
      border-radius:16px;
      color:var(--muted);
      font-size:14px;
      font-weight:800;
      transition:.2s ease;
    }
    .side-nav a:hover,
    .side-nav a.current{
      background:var(--deep);
      color:#fff;
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:26px;
    }
    .section-kicker{
      color:#7f3b55;
      font-size:13px;
      font-weight:950;
      letter-spacing:.08em;
    }
    h2{
      margin:8px 0 0;
      font-size:clamp(28px,3vw,40px);
      line-height:1.18;
      letter-spacing:-.055em;
      font-weight:950;
    }
    .section-desc{
      color:var(--muted);
      max-width:610px;
      margin-top:10px;
    }
    .module-stack{
      display:grid;
      gap:18px;
    }
    .feature-card{
      display:grid;
      grid-template-columns:64px minmax(0,1fr) auto;
      gap:18px;
      align-items:center;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:rgba(255,253,249,.76);
      padding:22px;
      box-shadow:0 10px 28px rgba(23,21,26,.05);
      transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease;
    }
    .feature-card.large{
      grid-template-columns:82px minmax(0,1fr);
      align-items:start;
      padding:28px;
      background:
        linear-gradient(135deg,rgba(255,253,249,.90),rgba(241,214,200,.36)),
        radial-gradient(circle at 90% 20%,rgba(168,85,114,.12),transparent 35%);
    }
    .feature-card:hover{
      transform:translateY(-3px);
      border-color:rgba(168,85,114,.22);
      box-shadow:var(--shadow-soft);
      background:#fff;
    }
    .icon-box{
      width:64px;
      height:64px;
      border-radius:22px;
      display:grid;
      place-items:center;
      background:var(--deep);
      color:#fff;
      box-shadow:0 16px 28px rgba(23,21,26,.16);
      position:relative;
      overflow:hidden;
    }
    .feature-card.large .icon-box{width:82px;height:82px;border-radius:28px}
    .icon-box:after{
      content:"";
      position:absolute;
      inset:auto -18px -22px auto;
      width:52px;
      height:52px;
      border-radius:50%;
      background:rgba(232,180,160,.35);
    }
    .icon-box svg{width:30px;height:30px;position:relative;z-index:1}
    .card-meta{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:8px;
      margin-bottom:8px;
    }
    .pill{
      display:inline-flex;
      align-items:center;
      border-radius:999px;
      padding:5px 9px;
      background:rgba(168,85,114,.10);
      color:#823950;
      font-size:12px;
      font-weight:900;
    }
    .time{
      color:var(--muted);
      font-size:12px;
      font-weight:700;
    }
    .feature-card h3{
      margin:0;
      font-size:21px;
      line-height:1.35;
      letter-spacing:-.035em;
      font-weight:950;
    }
    .feature-card p{
      margin:8px 0 0;
      color:var(--muted);
      max-width:720px;
    }
    .text-link{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-width:96px;
      padding:10px 14px;
      border-radius:999px;
      border:1px solid var(--line);
      color:var(--ink);
      background:#fff;
      font-size:13px;
      font-weight:900;
      transition:.2s ease;
    }
    .text-link:hover{
      background:var(--deep);
      color:#fff;
      transform:translateY(-2px);
    }
    .compare-panel{
      border-radius:var(--radius-xl);
      background:var(--deep);
      color:#fff;
      overflow:hidden;
      box-shadow:0 26px 72px rgba(23,21,26,.22);
      border:1px solid rgba(255,255,255,.10);
    }
    .compare-top{
      display:flex;
      justify-content:space-between;
      align-items:start;
      gap:24px;
      padding:30px;
      border-bottom:1px solid rgba(255,255,255,.10);
      background:
        radial-gradient(circle at 18% 0%,rgba(168,85,114,.26),transparent 34%),
        linear-gradient(135deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
    }
    .compare-top p{color:rgba(255,255,255,.66);max-width:680px;margin:10px 0 0}
    .compare-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:1px;
      background:rgba(255,255,255,.10);
    }
    .version-card{
      background:#1d1a20;
      padding:26px;
      min-height:280px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .version-card.recommend{
      background:linear-gradient(180deg,#251f27,#1d1a20);
      position:relative;
    }
    .version-card.recommend:before{
      content:"推荐";
      position:absolute;
      top:18px;
      right:18px;
      padding:5px 9px;
      border-radius:999px;
      background:rgba(232,180,160,.18);
      color:#F1D6C8;
      font-size:12px;
      font-weight:900;
    }
    .version-card h3{font-size:22px;font-weight:950;margin:0 0 12px}
    .version-card p{color:rgba(255,255,255,.66);margin:0 0 18px}
    .check-list{display:grid;gap:9px;margin:0;padding:0;list-style:none}
    .check-list li{
      display:flex;
      gap:9px;
      color:rgba(255,255,255,.78);
      font-size:14px;
    }
    .check-list li:before{
      content:"";
      width:8px;
      height:8px;
      flex:0 0 auto;
      margin-top:9px;
      border-radius:50%;
      background:var(--warm);
    }
    .steps{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .step-card{
      position:relative;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:rgba(255,253,249,.74);
      padding:24px;
      overflow:hidden;
      transition:.2s ease;
    }
    .step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-soft);background:#fff}
    .step-no{
      width:38px;
      height:38px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:var(--deep);
      color:#fff;
      font-weight:950;
      margin-bottom:18px;
    }
    .step-card h3{
      margin:0;
      font-size:19px;
      font-weight:950;
      letter-spacing:-.03em;
    }
    .step-card p{margin:8px 0 0;color:var(--muted);font-size:15px}
    .faq-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:16px;
    }
    details.faq-item{
      border:1px solid var(--line);
      border-radius:22px;
      background:rgba(255,253,249,.76);
      overflow:hidden;
      transition:.2s ease;
    }
    details.faq-item[open]{
      background:#fff;
      border-color:rgba(168,85,114,.22);
      box-shadow:var(--shadow-soft);
    }
    details.faq-item summary{
      list-style:none;
      display:flex;
      justify-content:space-between;
      gap:18px;
      align-items:center;
      padding:19px 20px;
      font-weight:950;
      letter-spacing:-.02em;
      cursor:pointer;
    }
    details.faq-item summary::-webkit-details-marker{display:none}
    .faq-plus{
      width:24px;
      height:24px;
      border-radius:999px;
      background:rgba(23,23,23,.06);
      position:relative;
      flex:0 0 auto;
    }
    .faq-plus:before,
    .faq-plus:after{
      content:"";
      position:absolute;
      inset:11px 6px auto;
      height:2px;
      border-radius:999px;
      background:var(--ink);
      transition:.2s ease;
    }
    .faq-plus:after{transform:rotate(90deg)}
    details[open] .faq-plus:after{transform:rotate(0deg)}
    .faq-body{
      margin:0 20px 20px;
      padding:16px 18px;
      border-left:3px solid var(--accent);
      border-radius:16px;
      background:rgba(247,244,239,.74);
      color:var(--muted);
    }
    .cta{
      position:relative;
      overflow:hidden;
      border-radius:38px;
      background:
        radial-gradient(circle at 12% 18%,rgba(232,180,160,.26),transparent 30%),
        linear-gradient(135deg,var(--deep),#211b21 58%,#35232a);
      color:#fff;
      padding:38px;
      box-shadow:0 26px 80px rgba(23,21,26,.22);
    }
    .cta:after{
      content:"";
      position:absolute;
      width:260px;
      height:260px;
      right:-90px;
      bottom:-110px;
      border-radius:50%;
      background:rgba(168,85,114,.22);
    }
    .cta-inner{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:minmax(0,1fr) auto;
      gap:28px;
      align-items:center;
    }
    .cta h2{margin:0;color:#fff}
    .cta p{color:rgba(255,255,255,.68);max-width:720px;margin:12px 0 0}
    .cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
    .cta .btn-secondary{
      background:rgba(255,255,255,.08);
      color:#fff;
      border-color:rgba(255,255,255,.18);
    }
    .footer{
      background:var(--deep);
      color:rgba(255,255,255,.70);
      padding:58px 0 28px;
      margin-top:80px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr .75fr .9fr;
      gap:36px;
      align-items:start;
    }
    .footer .brand-name{color:#fff}
    .footer-title{
      color:#fff;
      font-weight:950;
      margin-bottom:14px;
      letter-spacing:-.02em;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:rgba(255,255,255,.66);
      transition:.2s ease;
    }
    .footer-links a:hover{color:#fff;transform:translateX(2px)}
    .bottom-line{
      margin-top:38px;
      padding-top:20px;
      border-top:1px solid rgba(255,255,255,.10);
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      color:rgba(255,255,255,.48);
    }
    .bottom-tabs{
      position:fixed;
      left:12px;
      right:12px;
      bottom:calc(10px + env(safe-area-inset-bottom));
      z-index:60;
      display:none;
      grid-template-columns:repeat(3,1fr);
      gap:6px;
      padding:8px;
      border:1px solid rgba(23,23,23,.10);
      border-radius:24px;
      background:rgba(255,253,249,.94);
      backdrop-filter:blur(18px);
      box-shadow:0 18px 48px rgba(23,21,26,.16);
    }
    .bottom-tabs a{
      display:flex;
      flex-direction:column;
      align-items:center;
      justify-content:center;
      gap:4px;
      min-height:52px;
      border-radius:18px;
      color:var(--muted);
      font-size:12px;
      font-weight:900;
      transition:.2s ease;
    }
    .bottom-tabs svg{width:20px;height:20px}
    .bottom-tabs a.active{
      color:#fff;
      background:var(--deep);
    }
    @media (max-width:1024px){
      .desktop-nav{display:none}
      .menu-toggle{display:flex}
      .mobile-panel.is-open{display:block}
      .nav-actions .btn-primary{display:none}
      .hero-grid,.content-layout{grid-template-columns:1fr}
      .side-nav{
        position:relative;
        top:auto;
        display:flex;
        gap:8px;
        overflow:auto;
        padding:10px;
        border-radius:22px;
      }
      .side-nav .side-title{display:none}
      .side-nav a{white-space:nowrap;flex:0 0 auto}
      .compare-grid{grid-template-columns:1fr}
      .steps{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      body{padding-bottom:88px}
      .site-container{width:min(calc(100% - 28px),var(--container))}
      .nav-wrap{height:68px}
      .brand-name{max-width:210px;font-size:16px}
      .hero{padding:46px 0 34px}
      .section{padding:60px 0}
      .section-tight{padding:42px 0}
      .hero-actions .btn,.cta-actions .btn{width:100%}
      .stats-strip{grid-template-columns:1fr}
      .feature-card,.feature-card.large{grid-template-columns:1fr}
      .feature-card .text-link{justify-self:start}
      .section-head{display:block}
      .faq-grid{grid-template-columns:1fr}
      .cta{padding:28px;border-radius:30px}
      .cta-inner{grid-template-columns:1fr}
      .cta-actions{justify-content:stretch}
      .footer{margin-top:56px;padding-bottom:34px}
      .footer-grid{grid-template-columns:1fr}
      .bottom-line{display:grid}
      .bottom-tabs{display:grid}
    }
    @media (max-width:520px){
      h1{font-size:36px}
      .guide-card{padding:18px;border-radius:28px}
      .compare-top{display:block;padding:24px}
      .version-card{padding:22px}
      .steps{grid-template-columns:1fr}
      .brand-mark{width:38px;height:38px;border-radius:14px}
      .mobile-panel{width:min(calc(100% - 28px),var(--container))}
    }

/* roulang page: category2 */
:root{
      --bg:#F7F4EF;
      --bg-soft:#FAF8F5;
      --panel:#FFFFFF;
      --ink:#171717;
      --muted:#62605C;
      --deep:#17151A;
      --accent:#A85572;
      --accent-2:#8B5CF6;
      --warm:#E8B4A0;
      --warm-soft:#F1D6C8;
      --line:rgba(23,23,23,.10);
      --line-strong:rgba(23,23,23,.18);
      --white-soft:rgba(255,255,255,.78);
      --radius-xl:34px;
      --radius-lg:26px;
      --radius-md:18px;
      --shadow:0 24px 70px rgba(23,21,26,.10);
      --shadow-soft:0 14px 40px rgba(23,21,26,.08);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 8% 2%, rgba(232,180,160,.34), transparent 32%),
        radial-gradient(circle at 88% 8%, rgba(168,85,114,.12), transparent 30%),
        linear-gradient(180deg,var(--bg),var(--bg-soft) 44%,#F3EFE8);
      line-height:1.75;
      overflow-x:hidden;
      padding-bottom:0;
    }
    a{color:inherit;text-decoration:none}
    img,svg{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(168,85,114,.22)}
    :focus-visible{outline:3px solid rgba(168,85,114,.34);outline-offset:3px;border-radius:14px}
    .site-container{width:min(var(--container),calc(100% - 40px));margin-inline:auto}
    .topbar{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(247,244,239,.78);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(23,23,23,.08);
      transition:box-shadow .25s ease,background .25s ease,border-color .25s ease;
    }
    .topbar.scrolled{
      background:rgba(250,248,245,.94);
      box-shadow:0 12px 34px rgba(23,21,26,.08);
      border-color:rgba(23,23,23,.12);
    }
    .nav-wrap{
      min-height:78px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
    }
    .brand{display:inline-flex;align-items:center;gap:12px;min-width:0}
    .brand-mark{
      width:42px;
      height:42px;
      flex:0 0 42px;
      border-radius:16px;
      background:
        linear-gradient(135deg,var(--deep),#332331 58%,var(--accent));
      position:relative;
      box-shadow:0 16px 35px rgba(23,21,26,.18), inset 0 1px 0 rgba(255,255,255,.20);
    }
    .brand-mark:before{
      content:"";
      position:absolute;
      left:13px;
      top:10px;
      width:16px;
      height:18px;
      border:2px solid rgba(255,255,255,.82);
      border-radius:6px;
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      left:18px;
      top:18px;
      width:7px;
      height:7px;
      border-right:2px solid #fff;
      border-bottom:2px solid #fff;
      transform:rotate(45deg);
    }
    .brand-name{
      font-weight:850;
      letter-spacing:-.04em;
      white-space:nowrap;
      font-size:18px;
      line-height:1.15;
    }
    .desktop-nav{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      padding:7px;
      border:1px solid rgba(23,23,23,.08);
      border-radius:999px;
      background:rgba(255,255,255,.54);
    }
    .desktop-nav a{
      padding:10px 16px;
      border-radius:999px;
      color:var(--muted);
      font-size:14px;
      font-weight:700;
      transition:background .2s ease,color .2s ease,transform .2s ease;
    }
    .desktop-nav a:hover{background:rgba(23,23,23,.06);color:var(--ink);transform:translateY(-1px)}
    .desktop-nav a.active{background:var(--deep);color:#fff;box-shadow:0 10px 26px rgba(23,21,26,.16)}
    .nav-actions{display:flex;align-items:center;gap:12px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      border:1px solid transparent;
      border-radius:999px;
      padding:12px 18px;
      min-height:46px;
      font-weight:800;
      font-size:14px;
      transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
      user-select:none;
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0) scale(.99)}
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--deep),#30212B 58%,var(--accent));
      box-shadow:0 16px 34px rgba(23,21,26,.18);
    }
    .btn-primary:hover{box-shadow:0 22px 44px rgba(168,85,114,.22)}
    .btn-secondary{
      color:var(--ink);
      background:rgba(255,255,255,.68);
      border-color:rgba(23,23,23,.12);
    }
    .btn-secondary:hover{background:#fff;border-color:rgba(168,85,114,.26);box-shadow:var(--shadow-soft)}
    .btn-soft{
      color:var(--deep);
      background:rgba(241,214,200,.58);
      border-color:rgba(168,85,114,.18);
    }
    .menu-toggle{
      display:none;
      width:46px;
      height:46px;
      border:1px solid rgba(23,23,23,.10);
      border-radius:50%;
      background:rgba(255,255,255,.62);
      position:relative;
    }
    .menu-toggle span,.menu-toggle:before,.menu-toggle:after{
      content:"";
      position:absolute;
      left:13px;
      right:13px;
      height:2px;
      background:var(--deep);
      border-radius:10px;
      transition:transform .22s ease,opacity .22s ease,top .22s ease;
    }
    .menu-toggle span{top:22px}
    .menu-toggle:before{top:16px}
    .menu-toggle:after{top:28px}
    .menu-toggle.open span{opacity:0}
    .menu-toggle.open:before{top:22px;transform:rotate(45deg)}
    .menu-toggle.open:after{top:22px;transform:rotate(-45deg)}
    .mobile-panel{
      display:none;
      width:min(var(--container),calc(100% - 40px));
      margin:0 auto 14px;
      padding:10px;
      background:rgba(255,255,255,.86);
      border:1px solid rgba(23,23,23,.10);
      border-radius:22px;
      box-shadow:var(--shadow-soft);
    }
    .mobile-panel a{
      display:flex;
      padding:13px 14px;
      border-radius:16px;
      color:var(--muted);
      font-weight:800;
    }
    .mobile-panel a.active{background:var(--deep);color:#fff}
    .mobile-panel a:hover{background:rgba(23,23,23,.06);color:var(--ink)}
    .section{padding:92px 0}
    .hero{
      position:relative;
      padding:70px 0 54px;
      overflow:hidden;
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(23,23,23,.055) 1px,transparent 1px),
        linear-gradient(90deg,rgba(23,23,23,.045) 1px,transparent 1px);
      background-size:44px 44px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.72),transparent 82%);
      pointer-events:none;
    }
    .hero-layout{
      position:relative;
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:36px;
      align-items:center;
    }
    .eyebrow,.badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      border:1px solid rgba(168,85,114,.20);
      background:rgba(255,255,255,.58);
      color:#82445F;
      border-radius:999px;
      padding:8px 12px;
      font-size:13px;
      font-weight:800;
      line-height:1;
    }
    .eyebrow:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:99px;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(168,85,114,.12);
    }
    h1,h2,h3{margin:0;color:var(--ink);line-height:1.12;letter-spacing:-.045em}
    h1{font-size:clamp(34px,5.2vw,61px);font-weight:900;margin-top:20px}
    h2{font-size:clamp(29px,3.4vw,42px);font-weight:900}
    h3{font-size:20px;font-weight:850;letter-spacing:-.025em}
    p{margin:0;color:var(--muted)}
    .hero-lead{
      margin-top:22px;
      max-width:720px;
      font-size:18px;
      color:#514E49;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
    .hot-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
    .tag{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:8px 12px;
      border-radius:999px;
      border:1px solid rgba(23,23,23,.10);
      background:rgba(255,255,255,.60);
      color:#514E49;
      font-size:13px;
      font-weight:750;
    }
    .tag:before{
      content:"#";
      color:var(--accent);
      font-weight:900;
    }
    .search-card{
      background:rgba(255,255,255,.72);
      border:1px solid rgba(23,23,23,.10);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow);
      padding:26px;
      position:relative;
      overflow:hidden;
    }
    .search-card:before{
      content:"";
      position:absolute;
      width:260px;
      height:260px;
      right:-92px;
      top:-104px;
      background:radial-gradient(circle,rgba(168,85,114,.22),transparent 68%);
    }
    .search-box{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      gap:12px;
      padding:12px;
      border:1px solid rgba(23,23,23,.12);
      border-radius:24px;
      background:#fff;
      box-shadow:0 12px 28px rgba(23,21,26,.06);
    }
    .search-icon{
      width:42px;
      height:42px;
      border-radius:15px;
      background:var(--deep);
      display:grid;
      place-items:center;
      color:#fff;
      flex:0 0 auto;
    }
    .search-input{
      flex:1;
      min-width:0;
      border:0;
      outline:0;
      color:var(--ink);
      background:transparent;
      font-size:15px;
    }
    .search-input::placeholder{color:#8A8580}
    .search-box .btn{min-height:42px;padding:10px 16px}
    .help-metrics{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:18px;
    }
    .metric{
      border:1px solid rgba(23,23,23,.08);
      background:rgba(250,248,245,.74);
      border-radius:20px;
      padding:16px;
    }
    .metric strong{display:block;font-size:22px;line-height:1;color:var(--deep);letter-spacing:-.04em}
    .metric span{display:block;margin-top:7px;font-size:12px;font-weight:750;color:var(--muted)}
    .notice-panel{
      position:relative;
      z-index:1;
      margin-top:18px;
      padding:18px;
      border-radius:24px;
      background:var(--deep);
      color:#fff;
      overflow:hidden;
    }
    .notice-panel:before{
      content:"";
      position:absolute;
      inset:auto -60px -80px auto;
      width:180px;
      height:180px;
      background:radial-gradient(circle,rgba(232,180,160,.28),transparent 70%);
    }
    .notice-panel p{color:rgba(255,255,255,.72);font-size:14px}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:30px;
    }
    .section-head p{max-width:680px;margin-top:12px}
    .grid-2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .card{
      background:rgba(255,255,255,.70);
      border:1px solid rgba(23,23,23,.10);
      border-radius:var(--radius-lg);
      box-shadow:0 12px 36px rgba(23,21,26,.06);
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,background .22s ease;
    }
    .card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-soft);
      border-color:rgba(168,85,114,.22);
      background:rgba(255,255,255,.88);
    }
    .faq-shell{
      display:grid;
      grid-template-columns:minmax(0,1fr) 340px;
      gap:24px;
      align-items:start;
    }
    .faq-groups{
      display:grid;
      gap:18px;
    }
    .faq-group{
      padding:22px;
    }
    .faq-group-title{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:14px;
    }
    .group-icon{
      width:40px;
      height:40px;
      display:grid;
      place-items:center;
      border-radius:15px;
      background:rgba(168,85,114,.10);
      color:#82445F;
      font-weight:900;
    }
    .faq-item{
      border-top:1px solid rgba(23,23,23,.09);
    }
    .faq-item:first-of-type{border-top:0}
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:18px 0;
      background:transparent;
      border:0;
      color:var(--ink);
      text-align:left;
      font-weight:850;
      letter-spacing:-.015em;
    }
    .faq-toggle{
      width:28px;
      height:28px;
      border-radius:50%;
      border:1px solid rgba(23,23,23,.12);
      position:relative;
      flex:0 0 auto;
      background:#fff;
      transition:background .2s ease,transform .2s ease;
    }
    .faq-toggle:before,.faq-toggle:after{
      content:"";
      position:absolute;
      left:8px;
      right:8px;
      top:13px;
      height:2px;
      background:var(--deep);
      border-radius:4px;
      transition:transform .22s ease;
    }
    .faq-toggle:after{transform:rotate(90deg)}
    .faq-answer{
      max-height:0;
      overflow:hidden;
      transition:max-height .28s ease;
    }
    .faq-answer-inner{
      margin-bottom:18px;
      padding:16px 18px;
      border-left:3px solid var(--accent);
      border-radius:0 18px 18px 0;
      background:rgba(241,214,200,.30);
      color:var(--muted);
    }
    .faq-item.open .faq-toggle{background:var(--deep);transform:rotate(180deg)}
    .faq-item.open .faq-toggle:before,.faq-item.open .faq-toggle:after{background:#fff}
    .faq-item.open .faq-toggle:after{transform:rotate(0deg)}
    .quick-card{
      position:sticky;
      top:104px;
      padding:22px;
      background:var(--deep);
      color:#fff;
      overflow:hidden;
    }
    .quick-card:before{
      content:"";
      position:absolute;
      width:220px;
      height:220px;
      right:-90px;
      top:-80px;
      background:radial-gradient(circle,rgba(168,85,114,.38),transparent 68%);
    }
    .quick-card h2,.quick-card h3{color:#fff}
    .quick-card p{color:rgba(255,255,255,.68)}
    .quick-list{position:relative;display:grid;gap:10px;margin-top:18px}
    .quick-list a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      padding:14px 14px;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.06);
      color:rgba(255,255,255,.88);
      font-weight:800;
      transition:background .22s ease,transform .22s ease,border-color .22s ease;
    }
    .quick-list a:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.24);transform:translateX(3px)}
    .quick-list a span:last-child{color:rgba(255,255,255,.45)}
    .timeline-section{
      background:var(--deep);
      color:#fff;
      border-radius:44px;
      padding:44px;
      overflow:hidden;
      position:relative;
    }
    .timeline-section:before{
      content:"";
      position:absolute;
      inset:-40% auto auto -18%;
      width:520px;
      height:520px;
      background:radial-gradient(circle,rgba(232,180,160,.18),transparent 70%);
    }
    .timeline-section h2{color:#fff}
    .timeline-section p{color:rgba(255,255,255,.66)}
    .steps{
      position:relative;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
      margin-top:28px;
    }
    .step{
      position:relative;
      padding:22px;
      border-radius:26px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.06);
      min-height:210px;
    }
    .step-number{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:15px;
      background:#fff;
      color:var(--deep);
      font-weight:950;
      margin-bottom:22px;
    }
    .step h3{color:#fff}
    .step p{font-size:14px;margin-top:10px}
    .safe-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:22px;
      align-items:stretch;
    }
    .safe-main{padding:30px}
    .check-list{display:grid;gap:12px;margin-top:22px}
    .check-item{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:14px;
      border-radius:18px;
      background:rgba(247,244,239,.70);
      border:1px solid rgba(23,23,23,.07);
    }
    .check-dot{
      width:23px;
      height:23px;
      flex:0 0 auto;
      border-radius:50%;
      background:rgba(168,85,114,.12);
      color:#82445F;
      display:grid;
      place-items:center;
      font-size:13px;
      font-weight:950;
      margin-top:2px;
    }
    .hud{
      padding:26px;
      background:linear-gradient(145deg,#1A171D,#29202A);
      color:#fff;
      overflow:hidden;
      position:relative;
    }
    .hud:before{
      content:"";
      position:absolute;
      inset:0;
      background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
      background-size:30px 30px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent);
    }
    .hud-row{
      position:relative;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:14px;
      padding:14px 0;
      border-bottom:1px solid rgba(255,255,255,.10);
    }
    .hud-row:last-child{border-bottom:0}
    .hud-row strong{color:#fff}
    .hud-row span{color:rgba(255,255,255,.60);font-size:13px}
    .pill-ok{
      padding:6px 9px;
      border-radius:999px;
      background:rgba(232,180,160,.16);
      color:#F1D6C8;
      font-size:12px;
      font-weight:850;
      white-space:nowrap;
    }
    .download-panel{
      padding:34px;
      border-radius:38px;
      background:
        radial-gradient(circle at 90% 10%,rgba(168,85,114,.18),transparent 34%),
        rgba(255,255,255,.76);
      border:1px solid rgba(23,23,23,.10);
      box-shadow:var(--shadow);
      display:grid;
      grid-template-columns:1fr auto;
      gap:28px;
      align-items:center;
    }
    .download-buttons{display:flex;flex-wrap:wrap;gap:12px}
    .download-btn{
      min-width:190px;
      justify-content:flex-start;
      border-radius:20px;
      padding:14px 16px;
      background:#fff;
      border:1px solid rgba(23,23,23,.10);
      color:var(--ink);
      box-shadow:0 12px 26px rgba(23,21,26,.05);
    }
    .download-btn:hover{border-color:rgba(168,85,114,.25);box-shadow:var(--shadow-soft)}
    .platform-icon{
      width:38px;
      height:38px;
      display:grid;
      place-items:center;
      border-radius:14px;
      background:var(--deep);
      color:#fff;
      flex:0 0 auto;
      font-weight:900;
    }
    .download-btn small{display:block;color:var(--muted);font-weight:700;margin-top:1px}
    .tip-strip{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:18px 20px;
      border-radius:26px;
      border:1px solid rgba(168,85,114,.16);
      background:rgba(241,214,200,.32);
    }
    .tip-strip strong{color:#82445F}
    .footer{
      margin-top:60px;
      background:var(--deep);
      color:rgba(255,255,255,.68);
      padding:64px 0 34px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.3fr .7fr .8fr;
      gap:34px;
      align-items:start;
    }
    .footer-title{
      color:#fff;
      font-weight:900;
      margin-bottom:14px;
      letter-spacing:-.02em;
    }
    .footer-links{display:grid;gap:10px}
    .footer-links a{
      color:rgba(255,255,255,.68);
      transition:color .2s ease,transform .2s ease;
    }
    .footer-links a:hover{color:#fff;transform:translateX(3px)}
    .bottom-line{
      margin-top:42px;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.10);
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      color:rgba(255,255,255,.48);
    }
    .bottom-tab{
      display:none;
      position:fixed;
      left:12px;
      right:12px;
      bottom:12px;
      z-index:60;
      padding:8px 8px calc(8px + env(safe-area-inset-bottom));
      border:1px solid rgba(23,23,23,.10);
      border-radius:28px;
      background:rgba(250,248,245,.92);
      backdrop-filter:blur(18px);
      box-shadow:0 18px 45px rgba(23,21,26,.16);
    }
    .bottom-tab a{
      flex:1;
      min-width:0;
      display:grid;
      justify-items:center;
      gap:4px;
      padding:8px 4px;
      border-radius:21px;
      color:#77716C;
      font-size:12px;
      font-weight:850;
      line-height:1.1;
      transition:background .2s ease,color .2s ease;
    }
    .bottom-tab a.active{background:var(--deep);color:#fff}
    .tab-icon{
      width:22px;
      height:22px;
      display:grid;
      place-items:center;
    }
    @media (max-width:1024px){
      .desktop-nav{display:none}
      .menu-toggle{display:inline-flex}
      .nav-actions .btn-primary{display:none}
      .mobile-panel.show{display:grid}
      .hero-layout,.faq-shell,.safe-grid,.download-panel{grid-template-columns:1fr}
      .quick-card{position:relative;top:auto}
      .steps{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      body{padding-bottom:92px}
      .site-container{width:min(100% - 28px,var(--container))}
      .nav-wrap{min-height:68px}
      .brand-name{font-size:15px;max-width:64vw;overflow:hidden;text-overflow:ellipsis}
      .brand-mark{width:38px;height:38px;flex-basis:38px;border-radius:14px}
      .hero{padding:44px 0 34px}
      .section{padding:62px 0}
      .section-head{display:block}
      .search-card,.timeline-section,.download-panel{border-radius:30px;padding:22px}
      .search-box{align-items:stretch;flex-wrap:wrap}
      .search-input{flex-basis:calc(100% - 58px)}
      .search-box .btn{width:100%}
      .help-metrics,.grid-2{grid-template-columns:1fr}
      .steps{grid-template-columns:1fr}
      .step{min-height:auto}
      .footer{padding-bottom:110px}
      .footer-grid{grid-template-columns:1fr}
      .bottom-line{display:grid}
      .bottom-tab{display:flex}
      .tip-strip{display:grid}
      .download-buttons{display:grid}
      .download-btn{width:100%;min-width:0}
    }
    @media (max-width:520px){
      h1{font-size:34px}
      h2{font-size:28px}
      .hero-actions .btn{width:100%}
      .hot-tags{gap:8px}
      .tag{font-size:12px;padding:7px 10px}
      .faq-group{padding:18px}
      .quick-list a{font-size:14px}
    }