/* roulang page: index */
:root{
      --primary:#8B5CF6;
      --secondary:#F97316;
      --pink:#EC4899;
      --accent:#14B8A6;
      --bg:#FFF8F3;
      --card:#FFFFFF;
      --card-soft:#FFFCFA;
      --text:#1F1B2E;
      --muted:#6B6478;
      --line:#EFE7E1;
      --deep:#241B33;
      --shadow-soft:0 20px 60px rgba(80,45,35,.10);
      --shadow-glow:0 28px 70px rgba(139,92,246,.18);
      --gradient:linear-gradient(135deg,#8B5CF6 0%,#EC4899 48%,#F97316 100%);
      --soft-gradient:radial-gradient(circle at 20% 15%,rgba(139,92,246,.16),transparent 30%),radial-gradient(circle at 80% 5%,rgba(249,115,22,.14),transparent 28%),#FFF8F3;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:var(--soft-gradient);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img,svg{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    ::selection{background:rgba(139,92,246,.22);color:var(--text)}
    body::-webkit-scrollbar{width:10px}
    body::-webkit-scrollbar-track{background:#fff5ed}
    body::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#8B5CF6,#F97316);border-radius:999px;border:2px solid #fff5ed}
    .app-shell{
      min-height:100vh;
    }
    .side-nav{
      position:fixed;
      inset:0 auto 0 0;
      width:260px;
      height:100vh;
      z-index:40;
      padding:22px 18px;
      background:linear-gradient(180deg,rgba(255,252,250,.96),rgba(255,248,243,.91));
      border-right:1px solid rgba(139,92,246,.12);
      backdrop-filter:blur(18px);
      box-shadow:10px 0 40px rgba(80,45,35,.06);
      display:flex;
      flex-direction:column;
      gap:20px;
    }
    .brand-wrap{display:flex;align-items:center;gap:12px;padding:8px 8px 16px}
    .brand-icon{
      width:46px;height:46px;border-radius:18px;
      background:var(--gradient);
      display:grid;place-items:center;
      color:#fff;font-weight:900;
      box-shadow:0 16px 32px rgba(139,92,246,.25);
      position:relative;
      flex:none;
    }
    .brand-icon:after{
      content:"";
      width:0;height:0;
      border-top:8px solid transparent;
      border-bottom:8px solid transparent;
      border-left:12px solid rgba(255,255,255,.95);
      margin-left:3px;
    }
    .brand-title{font-size:18px;font-weight:850;line-height:1.25;letter-spacing:-.02em}
    .brand-sub{font-size:12px;color:var(--muted);line-height:1.4;margin-top:2px}
    .nav-list{display:flex;flex-direction:column;gap:8px}
    .nav-link{
      display:flex;align-items:center;gap:12px;
      min-height:54px;
      padding:12px 14px;
      border-radius:18px;
      color:#493f5a;
      font-weight:700;
      border:1px solid transparent;
      transition:.25s ease;
      position:relative;
    }
    .nav-link .nav-ico{
      width:30px;height:30px;border-radius:12px;
      display:grid;place-items:center;
      background:rgba(139,92,246,.08);
      color:var(--primary);
      transition:.25s ease;
      flex:none;
    }
    .nav-link:hover{
      background:linear-gradient(135deg,rgba(139,92,246,.10),rgba(249,115,22,.08));
      transform:translateX(3px);
      color:var(--text);
      border-color:rgba(139,92,246,.10);
    }
    .nav-link.active{
      background:linear-gradient(135deg,rgba(139,92,246,.14),rgba(249,115,22,.10));
      color:var(--text);
      border-color:rgba(139,92,246,.16);
    }
    .nav-link.active:before{
      content:"";
      position:absolute;
      left:8px;
      width:7px;height:7px;border-radius:999px;
      background:var(--secondary);
      box-shadow:0 0 0 5px rgba(249,115,22,.12);
    }
    .nav-link.active .nav-ico{
      background:var(--gradient);
      color:#fff;
      box-shadow:0 10px 24px rgba(139,92,246,.18);
    }
    .side-cta{
      margin-top:auto;
      border-radius:24px;
      padding:18px;
      background:linear-gradient(145deg,#2d2140,#241B33);
      color:#fff;
      position:relative;
      overflow:hidden;
      box-shadow:var(--shadow-soft);
    }
    .side-cta:before{
      content:"";
      position:absolute;
      width:130px;height:130px;
      right:-55px;top:-45px;
      background:radial-gradient(circle,rgba(249,115,22,.38),transparent 66%);
    }
    .side-cta strong{display:block;font-size:15px;line-height:1.45;position:relative}
    .side-cta p{font-size:12px;color:rgba(255,255,255,.68);margin:8px 0 14px;position:relative;line-height:1.6}
    .mobile-top{
      position:sticky;top:0;z-index:50;
      height:66px;padding:0 18px;
      display:none;align-items:center;justify-content:space-between;
      background:rgba(255,252,250,.94);
      border-bottom:1px solid rgba(139,92,246,.12);
      backdrop-filter:blur(16px);
      box-shadow:0 12px 36px rgba(80,45,35,.07);
    }
    .menu-btn{
      width:44px;height:44px;border-radius:16px;border:1px solid rgba(139,92,246,.16);
      display:grid;place-items:center;background:#fff;color:var(--text);
      transition:.25s ease;cursor:pointer;
    }
    .menu-btn:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(139,92,246,.12)}
    #menu-toggle{display:none}
    .drawer-mask{display:none}
    .drawer{
      position:fixed;inset:0 auto 0 0;width:300px;max-width:86vw;
      transform:translateX(-105%);
      transition:.32s ease;
      z-index:80;
      padding:18px;
      background:rgba(255,252,250,.98);
      border-right:1px solid rgba(139,92,246,.14);
      box-shadow:20px 0 60px rgba(36,27,51,.16);
      display:none;
    }
    #menu-toggle:checked ~ .drawer-mask{display:block;position:fixed;inset:0;background:rgba(36,27,51,.42);z-index:70}
    #menu-toggle:checked ~ .drawer{transform:translateX(0)}
    .main-content{margin-left:260px;position:relative;overflow:hidden}
    .section{padding:96px 0}
    .container-wide{width:min(1180px,calc(100% - 64px));margin:0 auto}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.72);
      border:1px solid rgba(139,92,246,.16);
      color:#5d3db7;
      font-size:13px;
      font-weight:750;
      box-shadow:0 12px 32px rgba(80,45,35,.06);
    }
    .eyebrow-dot{
      width:8px;height:8px;border-radius:999px;
      background:var(--gradient);
      box-shadow:0 0 0 5px rgba(139,92,246,.12);
    }
    .hero{
      padding:82px 0 72px;
      position:relative;
    }
    .hero:before{
      content:"";
      position:absolute;inset:0;
      background-image:radial-gradient(rgba(139,92,246,.16) 1px,transparent 1px);
      background-size:24px 24px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.55),transparent 72%);
      pointer-events:none;
    }
    .hero-grid{position:relative;display:grid;grid-template-columns:1.04fr .96fr;gap:44px;align-items:center}
    .hero h1{
      margin:20px 0 18px;
      font-size:clamp(38px,5vw,64px);
      line-height:1.12;
      letter-spacing:-.055em;
      font-weight:900;
    }
    .gradient-text{
      background:var(--gradient);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero-desc{
      max-width:720px;
      font-size:18px;
      color:var(--muted);
      line-height:1.85;
    }
    .btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;align-items:center}
    .btn{
      min-height:48px;
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      padding:13px 20px;border-radius:999px;
      font-weight:800;
      border:1px solid transparent;
      transition:.25s ease;
      cursor:pointer;
      outline:none;
      white-space:nowrap;
    }
    .btn-primary{
      background:var(--gradient);
      color:#fff;
      box-shadow:0 16px 34px rgba(139,92,246,.24);
      background-size:160% 160%;
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 46px rgba(139,92,246,.30);background-position:100% 50%}
    .btn-primary:active,.btn-secondary:active{transform:translateY(0)}
    .btn-secondary{
      background:rgba(255,255,255,.78);
      color:var(--text);
      border-color:rgba(139,92,246,.20);
      box-shadow:0 12px 26px rgba(80,45,35,.06);
    }
    .btn-secondary:hover{background:linear-gradient(135deg,rgba(139,92,246,.10),rgba(249,115,22,.08));border-color:transparent;transform:translateY(-2px)}
    .btn:focus-visible,.nav-link:focus-visible,.form-input:focus-visible,summary:focus-visible{
      outline:3px solid rgba(139,92,246,.32);
      outline-offset:3px;
    }
    .trust-list{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;color:var(--muted);font-size:14px}
    .trust-list span{display:inline-flex;align-items:center;gap:7px;padding:8px 10px;border-radius:999px;background:rgba(255,255,255,.62);border:1px solid rgba(239,231,225,.9)}
    .check-dot{width:18px;height:18px;border-radius:999px;background:rgba(16,185,129,.12);color:#059669;display:grid;place-items:center;font-size:12px;font-weight:900}
    .player-card{
      border-radius:36px;
      background:linear-gradient(#fff,#fff) padding-box,var(--gradient) border-box;
      border:1px solid transparent;
      box-shadow:var(--shadow-glow);
      padding:18px;
      position:relative;
      overflow:hidden;
    }
    .player-card:before{
      content:"";
      position:absolute;width:280px;height:280px;right:-120px;top:-120px;
      background:radial-gradient(circle,rgba(249,115,22,.24),transparent 68%);
    }
    .player-screen{
      height:286px;border-radius:28px;
      background:
        radial-gradient(circle at 28% 28%,rgba(255,255,255,.38),transparent 20%),
        linear-gradient(135deg,rgba(139,92,246,.88),rgba(236,72,153,.78) 48%,rgba(249,115,22,.86));
      position:relative;overflow:hidden;
      display:grid;place-items:center;
    }
    .player-screen:after{
      content:"";
      position:absolute;inset:0;
      background-image:linear-gradient(90deg,rgba(255,255,255,.12) 1px,transparent 1px),linear-gradient(rgba(255,255,255,.11) 1px,transparent 1px);
      background-size:42px 42px;
      opacity:.35;
    }
    .play-button{
      width:86px;height:86px;border-radius:32px;
      background:rgba(255,255,255,.92);
      display:grid;place-items:center;
      box-shadow:0 24px 55px rgba(36,27,51,.22);
      z-index:2;
    }
    .play-button:before{
      content:"";
      width:0;height:0;border-top:15px solid transparent;border-bottom:15px solid transparent;border-left:22px solid var(--primary);
      margin-left:5px;
    }
    .player-top{
      position:absolute;top:16px;left:18px;right:18px;z-index:3;
      display:flex;justify-content:space-between;align-items:center;color:#fff;
    }
    .control-dots{display:flex;gap:7px}
    .control-dots i{width:9px;height:9px;border-radius:999px;background:rgba(255,255,255,.72)}
    .progress{
      position:absolute;left:22px;right:22px;bottom:20px;height:9px;border-radius:999px;background:rgba(255,255,255,.26);z-index:3;overflow:hidden;
    }
    .progress span{display:block;width:62%;height:100%;border-radius:999px;background:rgba(255,255,255,.9)}
    .mini-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:14px;position:relative}
    .mini-card{
      border-radius:22px;background:#fff;
      border:1px solid rgba(139,92,246,.10);
      padding:14px;
      box-shadow:0 12px 28px rgba(80,45,35,.06);
    }
    .mini-card strong{display:block;font-size:14px;margin-bottom:4px}
    .mini-card p{font-size:12px;color:var(--muted);line-height:1.55;margin:0}
    .float-badge{
      position:absolute;right:8px;top:88px;z-index:5;
      border-radius:999px;
      padding:10px 13px;
      background:rgba(255,255,255,.88);
      border:1px solid rgba(255,255,255,.7);
      box-shadow:0 18px 38px rgba(36,27,51,.16);
      font-size:13px;font-weight:850;color:var(--text);
      display:flex;align-items:center;gap:8px;
    }
    .pulse{width:9px;height:9px;border-radius:999px;background:var(--accent);box-shadow:0 0 0 7px rgba(20,184,166,.14)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:34px}
    .section-kicker{color:#7c4ed9;font-size:14px;font-weight:850;margin-bottom:8px}
    .section-title{font-size:clamp(30px,3.4vw,44px);line-height:1.2;font-weight:900;letter-spacing:-.04em;margin:0}
    .section-desc{max-width:700px;color:var(--muted);font-size:16px;margin:12px 0 0;line-height:1.8}
    .bento-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .card{
      background:rgba(255,255,255,.82);
      border:1px solid rgba(139,92,246,.12);
      border-radius:28px;
      padding:24px;
      box-shadow:var(--shadow-soft);
      transition:.25s ease;
      position:relative;
      overflow:hidden;
    }
    .card:hover{transform:translateY(-5px);box-shadow:var(--shadow-glow);border-color:rgba(139,92,246,.22)}
    .feature-large{grid-column:span 2;grid-row:span 2;min-height:390px}
    .icon-box{
      width:48px;height:48px;border-radius:18px;
      background:linear-gradient(135deg,rgba(139,92,246,.14),rgba(249,115,22,.14));
      color:var(--primary);
      display:grid;place-items:center;
      font-weight:900;
      margin-bottom:18px;
    }
    .card h3{font-size:22px;line-height:1.3;margin:0 0 10px;font-weight:850;letter-spacing:-.02em}
    .card p{color:var(--muted);margin:0;line-height:1.75}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
    .tag{
      display:inline-flex;align-items:center;
      padding:6px 10px;border-radius:999px;
      background:rgba(139,92,246,.08);
      color:#6844c2;
      font-size:12px;font-weight:800;
      transition:.2s ease;
    }
    .tag.orange{background:rgba(249,115,22,.10);color:#bf5a11}
    .tag.teal{background:rgba(20,184,166,.10);color:#0d8e80}
    .tag:hover{background:var(--gradient);color:#fff}
    .wireframe{
      margin-top:28px;border-radius:26px;padding:14px;
      background:linear-gradient(135deg,rgba(139,92,246,.10),rgba(249,115,22,.08));
      border:1px solid rgba(139,92,246,.12);
    }
    .wire-top{height:154px;border-radius:22px;background:linear-gradient(135deg,rgba(139,92,246,.86),rgba(249,115,22,.74));display:grid;place-items:center}
    .wire-play{width:54px;height:54px;border-radius:20px;background:#fff;display:grid;place-items:center;box-shadow:0 18px 34px rgba(36,27,51,.18)}
    .wire-play:before{content:"";border-top:10px solid transparent;border-bottom:10px solid transparent;border-left:15px solid var(--secondary);margin-left:3px}
    .wire-lines{display:grid;gap:8px;margin-top:14px}
    .wire-lines i{height:10px;border-radius:999px;background:rgba(139,92,246,.14)}
    .wire-lines i:nth-child(2){width:70%}
    .stats-panel{
      border-radius:36px;
      padding:34px;
      background:
        radial-gradient(circle at 20% 0%,rgba(139,92,246,.38),transparent 34%),
        radial-gradient(circle at 85% 15%,rgba(249,115,22,.26),transparent 30%),
        #241B33;
      color:#fff;
      box-shadow:var(--shadow-soft);
      overflow:hidden;
      position:relative;
    }
    .stats-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:24px}
    .stat-item{
      min-height:138px;
      border-radius:24px;
      padding:18px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      backdrop-filter:blur(12px);
      transition:.25s ease;
    }
    .stat-item:hover{transform:translateY(-4px);background:rgba(255,255,255,.12)}
    .stat-num{font-size:30px;font-weight:900;line-height:1.15}
    .stat-item p{margin:8px 0 0;color:rgba(255,255,255,.70);font-size:13px;line-height:1.65}
    .scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
    .scene-card{
      border-radius:32px;background:#fff;border:1px solid rgba(139,92,246,.12);
      overflow:hidden;box-shadow:var(--shadow-soft);transition:.25s ease;
    }
    .scene-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-glow)}
    .scene-preview{
      height:190px;
      background:linear-gradient(135deg,rgba(139,92,246,.16),rgba(249,115,22,.13));
      position:relative;padding:22px;
    }
    .mock-window{height:100%;border-radius:24px;background:#fff;box-shadow:0 18px 46px rgba(80,45,35,.08);padding:14px;display:grid;grid-template-columns:1.2fr .8fr;gap:12px}
    .mock-video{border-radius:18px;background:linear-gradient(135deg,#8B5CF6,#EC4899,#F97316);position:relative}
    .mock-video:after{content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);border-top:12px solid transparent;border-bottom:12px solid transparent;border-left:18px solid #fff}
    .mock-list{display:grid;gap:8px}
    .mock-list i{border-radius:12px;background:rgba(139,92,246,.10)}
    .scene-body{padding:24px}
    .scene-body h3{font-size:22px;font-weight:850;margin:0 0 8px}
    .scene-body p{color:var(--muted);margin:0;line-height:1.75}
    .plans-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:28px;align-items:start}
    .plan-stack{display:grid;gap:16px}
    .plan-card{
      display:grid;grid-template-columns:1fr auto;gap:16px;
      border-radius:28px;background:rgba(255,255,255,.86);
      border:1px solid rgba(139,92,246,.13);
      padding:22px;box-shadow:var(--shadow-soft);transition:.25s ease;
    }
    .plan-card:hover{transform:translateX(4px);box-shadow:var(--shadow-glow)}
    .plan-card h3{font-size:22px;font-weight:850;margin:0 0 7px}
    .plan-card p{color:var(--muted);margin:0 0 13px}
    .plan-list{display:grid;gap:8px;color:#4f465e;font-size:14px;margin:0;padding:0;list-style:none}
    .plan-list li{display:flex;gap:8px;align-items:flex-start}
    .plan-list li:before{content:"✓";color:#10B981;font-weight:900}
    .faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px}
    .faq-list{display:grid;gap:12px}
    details{
      border-radius:22px;background:#fff;border:1px solid rgba(139,92,246,.12);
      box-shadow:0 12px 30px rgba(80,45,35,.05);
      transition:.25s ease;overflow:hidden;
    }
    details[open]{border-color:rgba(139,92,246,.30);box-shadow:var(--shadow-soft)}
    summary{
      list-style:none;cursor:pointer;
      padding:18px 20px;
      font-weight:850;
      display:flex;align-items:center;justify-content:space-between;gap:18px;
    }
    summary::-webkit-details-marker{display:none}
    summary:after{
      content:"+";
      width:28px;height:28px;border-radius:999px;
      display:grid;place-items:center;
      background:rgba(139,92,246,.10);
      color:var(--primary);
      transition:.25s ease;
      flex:none;
    }
    details[open] summary:after{content:"−";background:var(--gradient);color:#fff;transform:rotate(180deg)}
    details p{padding:0 20px 20px;margin:0;color:var(--muted);line-height:1.8}
    .cta-card{
      border-radius:38px;
      background:
        radial-gradient(circle at 18% 15%,rgba(139,92,246,.40),transparent 35%),
        radial-gradient(circle at 85% 30%,rgba(249,115,22,.30),transparent 32%),
        #241B33;
      color:#fff;
      padding:42px;
      box-shadow:var(--shadow-glow);
      display:grid;
      grid-template-columns:.95fr 1.05fr;
      gap:30px;
      align-items:center;
      overflow:hidden;
      position:relative;
    }
    .cta-card h2{font-size:clamp(30px,3.5vw,44px);line-height:1.2;font-weight:900;margin:0 0 14px;letter-spacing:-.04em}
    .cta-card p{color:rgba(255,255,255,.72);margin:0;line-height:1.85}
    .form-panel{
      border-radius:30px;
      padding:22px;
      background:rgba(255,255,255,.10);
      border:1px solid rgba(255,255,255,.15);
      backdrop-filter:blur(14px);
    }
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .form-input{
      width:100%;
      min-height:48px;
      border:none;
      border-radius:16px;
      background:rgba(255,255,255,.92);
      color:var(--text);
      padding:12px 14px;
      outline:none;
      transition:.2s ease;
    }
    textarea.form-input{min-height:108px;resize:vertical;grid-column:1/-1}
    .form-input::placeholder{color:#8d849b}
    .form-input:focus{box-shadow:0 0 0 3px rgba(249,115,22,.22),0 0 0 6px rgba(139,92,246,.16)}
    .footer{
      background:#21182f;
      color:#fff;
      padding:42px 0;
      margin-top:20px;
    }
    .footer-grid{display:grid;grid-template-columns:1.3fr .7fr .8fr;gap:28px;align-items:start}
    .footer p,.footer a,.footer li{color:rgba(255,255,255,.68)}
    .footer a:hover{color:#fff}
    .footer h3{font-size:16px;margin:0 0 12px;font-weight:850}
    .footer ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
    .copyright{border-top:1px solid rgba(255,255,255,.10);margin-top:28px;padding-top:18px;color:rgba(255,255,255,.52);font-size:13px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between}
    @media (max-width:1180px){
      .container-wide{width:min(100% - 44px,980px)}
      .bento-grid{grid-template-columns:repeat(2,1fr)}
      .feature-large{grid-column:span 2}
      .stats-grid{grid-template-columns:repeat(3,1fr)}
      .hero-grid{grid-template-columns:1fr;gap:32px}
      .player-card{max-width:760px}
      .plans-wrap,.faq-grid,.cta-card{grid-template-columns:1fr}
    }
    @media (max-width:1024px){
      .side-nav{display:none}
      .mobile-top{display:flex}
      .drawer{display:block}
      .main-content{margin-left:0}
      .section{padding:76px 0}
      .hero{padding:56px 0 64px}
    }
    @media (max-width:768px){
      .container-wide{width:min(100% - 36px,680px)}
      .section-head{display:block}
      .bento-grid,.scene-grid,.stats-grid{grid-template-columns:1fr}
      .feature-large{grid-column:span 1;min-height:auto}
      .mini-grid,.form-grid{grid-template-columns:1fr}
      .plan-card{grid-template-columns:1fr}
      .cta-card{padding:28px;border-radius:30px}
      .footer-grid{grid-template-columns:1fr}
      .mock-window{grid-template-columns:1fr}
      .mock-list{display:none}
      .scene-preview{height:170px}
    }
    @media (max-width:520px){
      .hero h1{font-size:36px}
      .hero-desc{font-size:16px}
      .btn-row{display:grid;grid-template-columns:1fr}
      .btn{width:100%}
      .player-screen{height:230px}
      .float-badge{position:static;margin:12px 0 0;width:max-content;max-width:100%}
      .stats-panel,.card,.scene-body{padding:20px}
      .copyright{display:block}
    }

/* roulang page: category1 */
:root{
      --primary:#8B5CF6;
      --secondary:#F97316;
      --pink:#EC4899;
      --accent:#14B8A6;
      --success:#10B981;
      --warning:#F59E0B;
      --bg:#FFF8F3;
      --surface:#FFFFFF;
      --surface-soft:#FFFCFA;
      --text:#1F1B2E;
      --muted:#6B6478;
      --border:#EFE7E1;
      --dark:#241B33;
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --shadow-soft:0 20px 60px rgba(80,45,35,.10);
      --shadow-hover:0 28px 70px rgba(139,92,246,.18);
      --gradient:linear-gradient(135deg,#8B5CF6 0%,#EC4899 48%,#F97316 100%);
      --soft-gradient:radial-gradient(circle at 18% 12%,rgba(139,92,246,.16),transparent 32%),radial-gradient(circle at 82% 6%,rgba(249,115,22,.14),transparent 30%),radial-gradient(circle at 76% 78%,rgba(20,184,166,.10),transparent 30%),#FFF8F3;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:var(--soft-gradient);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(139,92,246,.20)}
    :focus-visible{outline:3px solid rgba(139,92,246,.34);outline-offset:3px;border-radius:14px}
    .container-wide{width:min(1180px,calc(100% - 64px));margin-inline:auto}
    .app-shell{min-height:100vh}
    .sidebar{
      position:fixed;
      inset:0 auto 0 0;
      width:260px;
      z-index:40;
      padding:22px 18px;
      border-right:1px solid rgba(239,231,225,.92);
      background:linear-gradient(180deg,rgba(255,252,250,.96),rgba(255,248,243,.90));
      backdrop-filter:blur(18px);
      box-shadow:14px 0 50px rgba(80,45,35,.06);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .brand-wrap{
      display:flex;
      align-items:center;
      gap:12px;
      padding:10px 8px;
      border-radius:20px;
    }
    .brand-icon{
      width:46px;
      height:46px;
      flex:0 0 auto;
      display:grid;
      place-items:center;
      border-radius:17px;
      background:var(--gradient);
      box-shadow:0 16px 34px rgba(139,92,246,.26);
      position:relative;
      overflow:hidden;
    }
    .brand-icon::before{
      content:"";
      width:0;
      height:0;
      margin-left:3px;
      border-top:9px solid transparent;
      border-bottom:9px solid transparent;
      border-left:14px solid #fff;
      filter:drop-shadow(0 2px 4px rgba(0,0,0,.10));
      z-index:1;
    }
    .brand-icon::after{
      content:"";
      position:absolute;
      inset:-18px;
      background:radial-gradient(circle,rgba(255,255,255,.45),transparent 34%);
      transform:translate(16px,-12px);
    }
    .brand-title{display:block;font-weight:850;letter-spacing:-.02em;font-size:17px;line-height:1.25}
    .brand-sub{display:block;color:var(--muted);font-size:12px;line-height:1.45;margin-top:2px}
    .nav-list{display:grid;gap:10px;margin-top:26px}
    .nav-link{
      min-height:52px;
      display:flex;
      align-items:center;
      gap:12px;
      padding:11px 13px;
      border-radius:16px;
      color:#4b405d;
      font-weight:720;
      position:relative;
      transition:transform .22s ease,background .22s ease,color .22s ease,box-shadow .22s ease;
    }
    .nav-link .nav-ico{
      width:30px;
      height:30px;
      display:grid;
      place-items:center;
      border-radius:12px;
      background:rgba(139,92,246,.10);
      color:var(--primary);
      font-size:13px;
      font-weight:850;
      transition:transform .22s ease,background .22s ease,color .22s ease;
    }
    .nav-link:hover{
      transform:translateX(3px);
      background:linear-gradient(135deg,rgba(139,92,246,.10),rgba(249,115,22,.09));
      color:var(--text);
    }
    .nav-link:hover .nav-ico{transform:translateX(2px);background:rgba(249,115,22,.14);color:var(--secondary)}
    .nav-link.active{
      background:linear-gradient(135deg,rgba(139,92,246,.14),rgba(249,115,22,.12));
      color:var(--text);
      box-shadow:0 12px 30px rgba(139,92,246,.10);
    }
    .nav-link.active::before{
      content:"";
      position:absolute;
      left:5px;
      top:50%;
      width:7px;
      height:7px;
      border-radius:999px;
      transform:translateY(-50%);
      background:var(--secondary);
      box-shadow:0 0 0 6px rgba(249,115,22,.14);
    }
    .side-cta{
      margin-top:24px;
      padding:18px;
      border-radius:22px;
      background:linear-gradient(145deg,rgba(36,27,51,.96),rgba(80,45,88,.94));
      color:#fff;
      position:relative;
      overflow:hidden;
      box-shadow:0 22px 54px rgba(36,27,51,.22);
    }
    .side-cta::after{
      content:"";
      position:absolute;
      width:120px;
      height:120px;
      right:-50px;
      top:-48px;
      border-radius:999px;
      background:rgba(249,115,22,.28);
      filter:blur(6px);
    }
    .side-cta p{margin:0 0 14px;color:rgba(255,255,255,.78);font-size:13px;line-height:1.65;position:relative;z-index:1}
    .side-cta strong{display:block;margin-bottom:6px;color:#fff;font-size:15px}
    .side-cta a{position:relative;z-index:1;display:inline-flex;align-items:center;justify-content:center;padding:9px 14px;border-radius:999px;background:#fff;color:var(--text);font-size:13px;font-weight:800;transition:transform .2s ease,box-shadow .2s ease}
    .side-cta a:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,255,255,.18)}
    .mobile-topbar{display:none}
    .drawer-mask{display:none}
    .main-content{padding-left:260px;position:relative}
    .section{padding:84px 0}
    .section-tight{padding:56px 0}
    .kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 13px;
      border:1px solid rgba(139,92,246,.14);
      border-radius:999px;
      background:rgba(255,255,255,.72);
      box-shadow:0 10px 28px rgba(80,45,35,.06);
      color:#5f3fc9;
      font-size:13px;
      font-weight:780;
    }
    .kicker::before{content:"";width:8px;height:8px;border-radius:999px;background:var(--gradient);box-shadow:0 0 0 5px rgba(139,92,246,.10)}
    .btn{
      min-height:46px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      padding:12px 20px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:830;
      transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
      white-space:nowrap;
    }
    .btn-primary{background:var(--gradient);color:#fff;box-shadow:0 16px 34px rgba(236,72,153,.20);background-size:160% 160%}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 42px rgba(139,92,246,.25);background-position:100% 50%}
    .btn-secondary{background:rgba(255,255,255,.78);border-color:rgba(139,92,246,.18);color:var(--text)}
    .btn-secondary:hover{transform:translateY(-2px);background:linear-gradient(135deg,rgba(139,92,246,.09),rgba(249,115,22,.08));border-color:rgba(139,92,246,.06)}
    .tag{
      display:inline-flex;
      align-items:center;
      min-height:34px;
      padding:7px 12px;
      border-radius:999px;
      font-size:13px;
      font-weight:760;
      color:#5e536f;
      background:rgba(255,255,255,.75);
      border:1px solid rgba(139,92,246,.12);
      transition:background .2s ease,color .2s ease,transform .2s ease,border-color .2s ease;
    }
    .tag:hover{background:var(--gradient);color:#fff;transform:translateY(-2px);border-color:transparent}
    .tag.orange{background:rgba(249,115,22,.10);border-color:rgba(249,115,22,.16);color:#9a4d0c}
    .tag.teal{background:rgba(20,184,166,.10);border-color:rgba(20,184,166,.16);color:#087e73}
    .hero{
      position:relative;
      padding:62px 0 42px;
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:18px 32px auto auto;
      width:360px;
      height:360px;
      background:radial-gradient(circle,rgba(236,72,153,.13),transparent 68%);
      pointer-events:none;
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      gap:8px;
      color:var(--muted);
      font-size:14px;
      margin:22px 0 26px;
      flex-wrap:wrap;
    }
    .breadcrumb a{font-weight:760;color:#5f3fc9}
    .breadcrumb span.sep{color:#b1a7bc}
    .hero-card{
      border:1px solid rgba(139,92,246,.12);
      border-radius:34px;
      background:linear-gradient(145deg,rgba(255,255,255,.82),rgba(255,252,250,.72));
      box-shadow:var(--shadow-soft);
      overflow:hidden;
      position:relative;
    }
    .hero-card::after{
      content:"";
      position:absolute;
      inset:auto -80px -120px auto;
      width:280px;
      height:280px;
      border-radius:999px;
      background:rgba(20,184,166,.12);
      filter:blur(4px);
    }
    .hero h1{
      font-size:clamp(34px,5vw,58px);
      line-height:1.12;
      font-weight:900;
      letter-spacing:-.045em;
      margin:18px 0 18px;
      max-width:820px;
    }
    .hero p.lead{
      color:var(--muted);
      font-size:18px;
      line-height:1.85;
      max-width:770px;
      margin:0;
    }
    .guide-panel{
      border-radius:28px;
      background:linear-gradient(145deg,#241B33,#3d2b51);
      color:#fff;
      padding:24px;
      box-shadow:0 28px 70px rgba(36,27,51,.24);
      position:relative;
      overflow:hidden;
    }
    .guide-panel::before{
      content:"";
      position:absolute;
      width:190px;
      height:190px;
      right:-70px;
      top:-70px;
      border-radius:999px;
      background:rgba(249,115,22,.30);
      filter:blur(3px);
    }
    .guide-panel::after{
      content:"";
      position:absolute;
      width:140px;
      height:140px;
      left:-52px;
      bottom:-58px;
      border-radius:999px;
      background:rgba(139,92,246,.34);
      filter:blur(4px);
    }
    .guide-panel > *{position:relative;z-index:1}
    .mini-player{
      border-radius:22px;
      padding:16px;
      background:rgba(255,255,255,.10);
      border:1px solid rgba(255,255,255,.14);
      margin-top:18px;
    }
    .player-line{height:9px;border-radius:999px;background:rgba(255,255,255,.16);overflow:hidden}
    .player-line span{display:block;height:100%;width:68%;border-radius:999px;background:var(--gradient)}
    .play-mark{
      width:72px;
      height:72px;
      margin:26px auto;
      border-radius:26px;
      background:rgba(255,255,255,.16);
      display:grid;
      place-items:center;
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.12);
    }
    .play-mark i{
      width:0;
      height:0;
      margin-left:5px;
      border-top:13px solid transparent;
      border-bottom:13px solid transparent;
      border-left:20px solid #fff;
    }
    .section-heading{max-width:820px;margin-bottom:28px}
    .section-heading h2{
      margin:14px 0 10px;
      font-size:clamp(28px,3vw,40px);
      line-height:1.22;
      font-weight:880;
      letter-spacing:-.03em;
    }
    .section-heading p{margin:0;color:var(--muted);font-size:17px;line-height:1.85}
    .category-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:18px;
    }
    .category-card{
      position:relative;
      border-radius:26px;
      padding:24px;
      background:rgba(255,255,255,.82);
      border:1px solid rgba(139,92,246,.12);
      box-shadow:0 18px 44px rgba(80,45,35,.07);
      overflow:hidden;
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    }
    .category-card:hover{
      transform:translateY(-5px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(139,92,246,.25);
    }
    .category-card.featured{
      background:linear-gradient(#fff,#fff) padding-box,var(--gradient) border-box;
      border:1px solid transparent;
    }
    .card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:16px}
    .num{
      width:48px;
      height:48px;
      border-radius:18px;
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:900;
      background:var(--gradient);
      box-shadow:0 14px 28px rgba(139,92,246,.22);
      flex:0 0 auto;
    }
    .category-card h3{font-size:22px;line-height:1.25;font-weight:850;margin:0 0 9px}
    .category-card p{margin:0;color:var(--muted);line-height:1.75}
    .card-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
    .micro-tag{font-size:12px;font-weight:760;padding:5px 9px;border-radius:999px;background:rgba(139,92,246,.09);color:#5f3fc9}
    .micro-tag.orange{background:rgba(249,115,22,.10);color:#9a4d0c}
    .micro-tag.teal{background:rgba(20,184,166,.10);color:#087e73}
    .card-action{
      margin-top:20px;
      display:inline-flex;
      align-items:center;
      gap:6px;
      color:#5f3fc9;
      font-weight:830;
      font-size:14px;
    }
    .card-action span{transition:transform .2s ease}
    .category-card:hover .card-action span{transform:translateX(4px)}
    .recommend-card{
      border-radius:32px;
      padding:34px;
      color:#fff;
      background:linear-gradient(135deg,#241B33 0%,#412c5d 54%,#6d3e62 100%);
      box-shadow:0 28px 70px rgba(36,27,51,.22);
      overflow:hidden;
      position:relative;
    }
    .recommend-card::before{
      content:"";
      position:absolute;
      width:330px;
      height:330px;
      right:-110px;
      top:-130px;
      border-radius:999px;
      background:radial-gradient(circle,rgba(249,115,22,.32),transparent 68%);
    }
    .recommend-card::after{
      content:"";
      position:absolute;
      inset:0;
      background-image:radial-gradient(rgba(255,255,255,.16) 1px, transparent 1px);
      background-size:22px 22px;
      opacity:.22;
    }
    .recommend-card > *{position:relative;z-index:1}
    .steps{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:14px;
      margin-top:24px;
    }
    .step{
      border-radius:22px;
      padding:20px;
      background:rgba(255,255,255,.10);
      border:1px solid rgba(255,255,255,.14);
    }
    .step strong{display:block;font-size:18px;margin-bottom:8px}
    .step p{margin:0;color:rgba(255,255,255,.76);font-size:14px;line-height:1.7}
    .flow-list{display:grid;gap:14px}
    .flow-item{
      display:flex;
      gap:16px;
      align-items:flex-start;
      padding:20px;
      border-radius:24px;
      background:rgba(255,255,255,.76);
      border:1px solid rgba(239,231,225,.90);
      box-shadow:0 14px 36px rgba(80,45,35,.06);
    }
    .flow-dot{
      width:38px;height:38px;border-radius:15px;display:grid;place-items:center;background:rgba(20,184,166,.10);color:#087e73;font-weight:900;flex:0 0 auto
    }
    .flow-item h3{margin:0 0 5px;font-size:18px;font-weight:840}
    .flow-item p{margin:0;color:var(--muted);line-height:1.72}
    .faq-wrap{display:grid;gap:14px}
    details.faq-item{
      border-radius:22px;
      background:rgba(255,255,255,.82);
      border:1px solid rgba(139,92,246,.12);
      box-shadow:0 14px 34px rgba(80,45,35,.06);
      overflow:hidden;
      transition:border-color .2s ease,box-shadow .2s ease;
    }
    details.faq-item[open]{border-color:rgba(139,92,246,.34);box-shadow:0 20px 46px rgba(139,92,246,.12)}
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:20px 24px;
      font-weight:850;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{
      content:"+";
      width:30px;
      height:30px;
      flex:0 0 auto;
      display:grid;
      place-items:center;
      border-radius:999px;
      background:rgba(139,92,246,.10);
      color:var(--primary);
      font-weight:900;
      transition:transform .2s ease,background .2s ease,color .2s ease;
    }
    .faq-item[open] summary::after{content:"−";background:var(--gradient);color:#fff;transform:rotate(180deg)}
    .faq-item p{margin:0;padding:0 24px 22px;color:var(--muted);line-height:1.8}
    .cta-box{
      border-radius:32px;
      padding:34px;
      background:linear-gradient(135deg,rgba(255,255,255,.90),rgba(255,252,250,.78));
      border:1px solid rgba(139,92,246,.14);
      box-shadow:var(--shadow-soft);
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:28px;
      align-items:center;
      position:relative;
      overflow:hidden;
    }
    .cta-box::after{
      content:"";
      position:absolute;
      right:-80px;
      bottom:-120px;
      width:260px;
      height:260px;
      border-radius:999px;
      background:radial-gradient(circle,rgba(249,115,22,.16),transparent 68%);
    }
    .cta-box > *{position:relative;z-index:1}
    .cta-box h2{font-size:clamp(26px,3vw,38px);line-height:1.22;font-weight:900;margin:0 0 12px;letter-spacing:-.03em}
    .cta-box p{margin:0;color:var(--muted);font-size:17px;line-height:1.82}
    .summary-card{
      border-radius:26px;
      padding:22px;
      background:#fff;
      border:1px solid rgba(239,231,225,.92);
      box-shadow:0 16px 38px rgba(80,45,35,.07);
    }
    .summary-row{display:flex;align-items:center;justify-content:space-between;padding:11px 0;border-bottom:1px dashed rgba(139,92,246,.16);gap:12px}
    .summary-row:last-child{border-bottom:0}
    .summary-row span:first-child{color:var(--muted);font-size:14px}
    .summary-row span:last-child{font-weight:850;color:var(--text)}
    .footer{
      margin-top:42px;
      padding:56px 0 28px;
      background:var(--dark);
      color:rgba(255,255,255,.70);
      position:relative;
      overflow:hidden;
    }
    .footer::before{
      content:"";
      position:absolute;
      width:360px;
      height:360px;
      right:-120px;
      top:-170px;
      border-radius:999px;
      background:rgba(249,115,22,.16);
    }
    .footer-grid{
      position:relative;
      display:grid;
      grid-template-columns:1.4fr .7fr .9fr;
      gap:34px;
      z-index:1;
    }
    .footer p{margin:0;color:rgba(255,255,255,.64);line-height:1.8}
    .footer h3{margin:0 0 14px;color:#fff;font-size:16px;font-weight:850}
    .footer ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
    .footer a{color:rgba(255,255,255,.70);transition:color .2s ease,transform .2s ease}
    .footer a:hover{color:#fff}
    .copyright{
      position:relative;
      z-index:1;
      margin-top:34px;
      padding-top:20px;
      border-top:1px solid rgba(255,255,255,.10);
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      color:rgba(255,255,255,.48);
      font-size:13px;
    }
    @media (max-width:1024px){
      .sidebar{width:88px;padding:18px 12px}
      .sidebar .brand-title,.sidebar .brand-sub,.sidebar .nav-link span:not(.nav-ico),.side-cta{display:none}
      .brand-wrap{justify-content:center;padding:8px 0}
      .nav-link{justify-content:center;padding:11px 8px}
      .nav-link.active::before{left:4px}
      .main-content{padding-left:88px}
      .container-wide{width:min(100% - 44px,980px)}
      .hero{padding-top:48px}
      .category-grid{grid-template-columns:1fr}
      .steps{grid-template-columns:1fr}
      .cta-box{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      body{background:#FFF8F3}
      .sidebar{
        transform:translateX(-104%);
        transition:transform .24s ease;
        width:286px;
        z-index:70;
      }
      body.drawer-open .sidebar{transform:translateX(0)}
      .sidebar .brand-title,.sidebar .brand-sub,.sidebar .nav-link span:not(.nav-ico),.side-cta{display:block}
      .sidebar .nav-link{justify-content:flex-start;padding:11px 13px}
      .drawer-mask{
        display:block;
        position:fixed;
        inset:0;
        z-index:60;
        background:rgba(31,27,46,.36);
        opacity:0;
        pointer-events:none;
        transition:opacity .24s ease;
      }
      body.drawer-open .drawer-mask{opacity:1;pointer-events:auto}
      .mobile-topbar{
        position:sticky;
        top:0;
        z-index:50;
        display:flex;
        align-items:center;
        justify-content:space-between;
        height:66px;
        padding:0 18px;
        background:rgba(255,252,250,.94);
        backdrop-filter:blur(16px);
        border-bottom:1px solid rgba(239,231,225,.94);
        box-shadow:0 10px 28px rgba(80,45,35,.06);
      }
      .menu-btn{
        width:44px;height:44px;border:0;border-radius:16px;background:rgba(139,92,246,.10);color:var(--primary);display:grid;place-items:center;font-weight:900
      }
      .main-content{padding-left:0}
      .container-wide{width:min(100% - 34px,680px)}
      .section{padding:62px 0}
      .section-tight{padding:42px 0}
      .hero{padding:32px 0 28px}
      .hero-card{border-radius:28px}
      .hero p.lead{font-size:16px}
      .guide-panel,.recommend-card,.cta-box{border-radius:26px;padding:24px}
      .card-head{flex-direction:column}
      .flow-item{padding:18px}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:grid}
    }
    @media (max-width:520px){
      .brand-title{font-size:15px}
      .brand-icon{width:42px;height:42px;border-radius:15px}
      .hero h1{font-size:34px}
      .btn{width:100%}
      .hero .actions,.cta-actions{width:100%;display:grid!important}
      .tag{font-size:12px}
      .category-card{padding:20px;border-radius:22px}
      .recommend-card,.cta-box{padding:22px}
      .faq-item summary{padding:18px 18px}
      .faq-item p{padding:0 18px 20px}
    }