/* roulang page: index */
:root{
      --bg-0:#05101f;
      --bg-1:#071a32;
      --bg-2:#0b2442;
      --surface:rgba(255,255,255,.078);
      --surface-strong:rgba(255,255,255,.12);
      --surface-soft:rgba(255,255,255,.045);
      --line:rgba(173,216,255,.18);
      --line-strong:rgba(84,202,255,.42);
      --text:#f4f8ff;
      --muted:#a8b8cc;
      --muted-2:#7f91a8;
      --primary:#36c8ff;
      --primary-2:#6e8bff;
      --accent:#54f0c2;
      --warning:#ffd166;
      --shadow:0 24px 70px rgba(0,0,0,.35);
      --shadow-soft:0 14px 45px rgba(7,21,40,.34);
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --container:1240px;
      --header-h:76px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth;text-size-adjust:100%}
    body{
      min-height:100vh;
      font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;
      color:var(--text);
      line-height:1.75;
      background:
        radial-gradient(circle at 12% 10%, rgba(54,200,255,.22), transparent 32%),
        radial-gradient(circle at 84% 22%, rgba(110,139,255,.18), transparent 34%),
        radial-gradient(circle at 72% 82%, rgba(84,240,194,.12), transparent 30%),
        linear-gradient(135deg,var(--bg-0),var(--bg-1) 45%,#04101e);
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-2;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
      background-size:44px 44px;
      mask-image:linear-gradient(to bottom, rgba(0,0,0,.68), transparent 82%);
    }
    body::after{
      content:"";
      position:fixed;
      inset:auto -10% -25% -10%;
      height:420px;
      pointer-events:none;
      z-index:-1;
      background:radial-gradient(ellipse at center, rgba(54,200,255,.12), transparent 65%);
      filter:blur(18px);
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit;color:inherit}
    button{border:0;cursor:pointer}
    input,textarea{border:0;outline:0}
    ::selection{background:rgba(54,200,255,.35);color:#fff}
    .container{width:min(var(--container),calc(100% - 40px));margin-inline:auto}
    .skip-link{
      position:absolute;left:16px;top:-60px;z-index:1000;
      padding:10px 14px;border-radius:12px;
      background:var(--primary);color:#04101e;font-weight:800;
      transition:top .2s var(--ease);
    }
    .skip-link:focus{top:12px}
    .site-header{
      position:sticky;top:0;z-index:100;
      height:var(--header-h);
      display:flex;align-items:center;
      backdrop-filter:blur(18px);
      background:linear-gradient(180deg,rgba(5,16,31,.86),rgba(5,16,31,.58));
      border-bottom:1px solid rgba(173,216,255,.14);
      transition:background .24s var(--ease),box-shadow .24s var(--ease),height .24s var(--ease);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:22px;
    }
    .brand{
      display:flex;align-items:center;gap:12px;min-width:max-content;
      font-weight:900;letter-spacing:.2px;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;
      background:
        linear-gradient(135deg,rgba(54,200,255,.95),rgba(110,139,255,.9)),
        radial-gradient(circle at 35% 25%,#fff,transparent 30%);
      box-shadow:0 0 32px rgba(54,200,255,.28);
      color:#04101e;font-weight:950;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.15}
    .brand-text strong{font-size:1.02rem}
    .brand-text span{font-size:.72rem;color:var(--muted);font-weight:600}
    .nav-links{
      display:flex;align-items:center;justify-content:center;gap:8px;
      padding:6px;border:1px solid rgba(173,216,255,.14);
      background:rgba(255,255,255,.045);
      border-radius:999px;
    }
    .nav-links a{
      position:relative;
      padding:9px 16px;border-radius:999px;
      color:var(--muted);
      font-size:.94rem;font-weight:700;
      transition:color .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
    }
    .nav-links a:hover,.nav-links a:focus{
      color:#fff;background:rgba(54,200,255,.1);outline:none;
      box-shadow:inset 0 0 0 1px rgba(54,200,255,.2);
    }
    .nav-links a.active{
      color:#fff;background:linear-gradient(135deg,rgba(54,200,255,.24),rgba(110,139,255,.16));
      box-shadow:0 0 24px rgba(54,200,255,.15), inset 0 0 0 1px rgba(54,200,255,.32);
    }
    .nav-action{display:flex;align-items:center;gap:12px}
    .menu-toggle{
      display:none;width:44px;height:44px;border-radius:14px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(173,216,255,.18);
    }
    .menu-toggle span{
      display:block;width:18px;height:2px;background:#fff;margin:4px auto;border-radius:99px;
      transition:transform .2s var(--ease),opacity .2s var(--ease);
    }
    .btn{
      position:relative;isolation:isolate;overflow:hidden;
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:46px;padding:12px 18px;
      border-radius:15px;font-weight:850;letter-spacing:.1px;
      transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease),filter .22s var(--ease);
      user-select:none;
    }
    .btn::after{
      content:"";position:absolute;inset:0;z-index:-1;
      background:linear-gradient(110deg,transparent 0%,rgba(255,255,255,.28) 45%,transparent 62%);
      transform:translateX(-120%);
      transition:transform .55s var(--ease);
    }
    .btn:hover::after{transform:translateX(120%)}
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0) scale(.98)}
    .btn:focus-visible{outline:3px solid rgba(84,240,194,.46);outline-offset:3px}
    .btn-primary{
      color:#03111f;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 16px 36px rgba(54,200,255,.28), inset 0 1px 0 rgba(255,255,255,.55);
    }
    .btn-primary:hover{box-shadow:0 20px 48px rgba(54,200,255,.36)}
    .btn-secondary{
      color:#eff8ff;background:rgba(255,255,255,.055);
      border:1px solid rgba(173,216,255,.24);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
    }
    .btn-secondary:hover{background:rgba(54,200,255,.1);border-color:rgba(54,200,255,.42)}
    .btn[disabled],.btn.disabled{opacity:.55;cursor:not-allowed;filter:grayscale(.3);transform:none}
    .section{padding:92px 0;position:relative}
    .section-tight{padding:64px 0}
    .section-head{
      display:flex;align-items:end;justify-content:space-between;gap:28px;
      margin-bottom:34px;
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      color:var(--accent);
      font-weight:850;font-size:.9rem;
      letter-spacing:.08em;
      text-transform:uppercase;
      margin-bottom:12px;
    }
    .eyebrow::before{
      content:"";width:22px;height:2px;border-radius:99px;
      background:linear-gradient(90deg,var(--accent),transparent);
    }
    h1,h2,h3{line-height:1.18;letter-spacing:-.02em}
    h1{font-size:clamp(2.35rem,6vw,5.4rem);font-weight:950}
    h2{font-size:clamp(1.75rem,3.2vw,3rem);font-weight:930}
    h3{font-size:1.18rem;font-weight:880}
    p{color:var(--muted)}
    .lead{font-size:clamp(1rem,1.45vw,1.2rem);max-width:720px}
    .text-gradient{
      background:linear-gradient(135deg,#fff 10%,var(--primary) 48%,var(--accent));
      -webkit-background-clip:text;background-clip:text;color:transparent;
    }
    .hero{
      min-height:calc(100vh - var(--header-h));
      display:grid;align-items:center;
      padding:62px 0 38px;
      position:relative;overflow:hidden;
    }
    .hero::before{
      content:"";position:absolute;inset:0;z-index:-2;
      background:
        linear-gradient(90deg,rgba(5,16,31,.92),rgba(5,16,31,.64) 42%,rgba(5,16,31,.88)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      opacity:.68;
      transform:scale(1.02);
    }
    .hero::after{
      content:"";position:absolute;inset:8% -20% auto auto;width:560px;height:560px;z-index:-1;
      background:radial-gradient(circle,rgba(54,200,255,.18),transparent 64%);
      filter:blur(8px);
    }
    .hero-grid{
      display:grid;grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);
      align-items:center;gap:54px;
    }
    .hero-copy{padding:28px 0}
    .hero-copy .lead{margin-top:22px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
    .hero-trust{
      display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;
    }
    .pill{
      display:inline-flex;align-items:center;gap:7px;
      padding:8px 12px;border-radius:999px;
      background:rgba(255,255,255,.065);
      border:1px solid rgba(173,216,255,.16);
      color:#dbeaff;font-size:.9rem;font-weight:700;
    }
    .pill i{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 14px var(--accent)}
    .visual-stack{position:relative;min-height:520px}
    .glass-panel{
      border:1px solid rgba(173,216,255,.22);
      background:linear-gradient(180deg,rgba(255,255,255,.12),rgba(255,255,255,.055));
      box-shadow:var(--shadow);
      backdrop-filter:blur(18px);
      border-radius:var(--radius-xl);
    }
    .dashboard{
      position:absolute;inset:38px 0 auto 26px;
      padding:22px;
      min-height:390px;
      overflow:hidden;
    }
    .dashboard::before{
      content:"";position:absolute;inset:-80px -80px auto auto;width:260px;height:260px;
      background:radial-gradient(circle,rgba(84,240,194,.22),transparent 66%);
    }
    .dash-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}
    .status{
      display:flex;align-items:center;gap:8px;
      color:#dbfaff;font-size:.88rem;font-weight:800;
    }
    .status::before{
      content:"";width:10px;height:10px;border-radius:50%;
      background:var(--accent);box-shadow:0 0 18px var(--accent);
    }
    .metric-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:18px 0}
    .metric-card{
      padding:18px;border-radius:18px;
      background:rgba(3,14,28,.42);
      border:1px solid rgba(173,216,255,.14);
    }
    .metric-card strong{display:block;font-size:1.9rem;line-height:1;color:#fff}
    .metric-card span{display:block;margin-top:8px;color:var(--muted);font-size:.88rem}
    .signal-list{display:grid;gap:12px;margin-top:18px}
    .signal{
      display:flex;align-items:center;justify-content:space-between;gap:14px;
      padding:13px 14px;border-radius:15px;
      background:rgba(255,255,255,.055);
      border:1px solid rgba(173,216,255,.12);
    }
    .signal b{font-size:.95rem}
    .bar{width:35%;height:7px;border-radius:99px;background:rgba(255,255,255,.08);overflow:hidden}
    .bar em{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--primary),var(--accent))}
    .float-card{
      position:absolute;right:8px;bottom:34px;width:260px;
      padding:18px;border-radius:24px;
      background:linear-gradient(135deg,rgba(54,200,255,.18),rgba(255,255,255,.07));
      border:1px solid rgba(84,240,194,.26);
      box-shadow:0 20px 60px rgba(0,0,0,.32);
      backdrop-filter:blur(18px);
    }
    .float-card strong{display:block;font-size:1.05rem;margin-bottom:6px}
    .float-card p{font-size:.9rem}
    .orbit{
      position:absolute;left:0;bottom:72px;width:110px;height:110px;border-radius:30px;
      display:grid;place-items:center;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(173,216,255,.2);
      box-shadow:0 20px 60px rgba(54,200,255,.16);
      transform:rotate(-8deg);
    }
    .orbit span{
      width:58px;height:58px;border-radius:20px;
      background:conic-gradient(from 120deg,var(--primary),var(--accent),var(--primary-2),var(--primary));
      box-shadow:0 0 26px rgba(54,200,255,.35);
    }
    .stats-strip{
      display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
      margin-top:20px;
    }
    .stat-mini{
      padding:20px;border-radius:20px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(173,216,255,.14);
      box-shadow:var(--shadow-soft);
      transition:transform .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
    }
    .stat-mini:hover{transform:translateY(-4px);border-color:rgba(54,200,255,.34);background:rgba(255,255,255,.085)}
    .stat-mini b{display:block;font-size:1.15rem;color:#fff;margin-bottom:5px}
    .stat-mini span{color:var(--muted);font-size:.92rem}
    .pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .pain-card,.result-card,.content-card,.testimonial,.faq-item,.contact-card{
      background:linear-gradient(180deg,rgba(255,255,255,.09),rgba(255,255,255,.045));
      border:1px solid rgba(173,216,255,.15);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-soft);
      backdrop-filter:blur(14px);
      transition:transform .24s var(--ease),border-color .24s var(--ease),background .24s var(--ease),box-shadow .24s var(--ease);
    }
    .pain-card{padding:24px}
    .pain-card:hover,.result-card:hover,.content-card:hover,.testimonial:hover{
      transform:translateY(-6px);
      border-color:rgba(54,200,255,.35);
      background:linear-gradient(180deg,rgba(255,255,255,.12),rgba(255,255,255,.055));
      box-shadow:0 24px 70px rgba(4,12,26,.42);
    }
    .icon{
      width:46px;height:46px;border-radius:16px;
      display:grid;place-items:center;
      margin-bottom:18px;
      background:linear-gradient(135deg,rgba(54,200,255,.22),rgba(84,240,194,.1));
      border:1px solid rgba(84,240,194,.22);
      color:var(--accent);font-weight:950;
    }
    .pain-card h3{margin-bottom:9px}
    .solution-wrap{
      display:grid;grid-template-columns:.82fr 1.18fr;gap:28px;align-items:start;
    }
    .solution-aside{
      position:sticky;top:100px;
      padding:28px;border-radius:var(--radius-xl);
      background:
        linear-gradient(180deg,rgba(5,16,31,.18),rgba(5,16,31,.7)),
        url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
      min-height:420px;
      overflow:hidden;
      border:1px solid rgba(173,216,255,.18);
      box-shadow:var(--shadow);
    }
    .solution-aside::after{
      content:"";position:absolute;inset:0;
      background:linear-gradient(180deg,rgba(5,16,31,.25),rgba(5,16,31,.88));
      z-index:0;
    }
    .solution-aside > *{position:relative;z-index:1}
    .solution-aside h2{margin-top:140px}
    .timeline{display:grid;gap:18px}
    .step{
      position:relative;display:grid;grid-template-columns:64px 1fr;gap:18px;
      padding:22px;border-radius:var(--radius-lg);
      background:rgba(255,255,255,.06);
      border:1px solid rgba(173,216,255,.15);
    }
    .step:not(:last-child)::after{
      content:"";position:absolute;left:53px;bottom:-19px;width:1px;height:19px;
      background:linear-gradient(var(--primary),transparent);
    }
    .step-num{
      width:52px;height:52px;border-radius:18px;
      display:grid;place-items:center;
      color:#04101e;font-weight:950;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 12px 34px rgba(54,200,255,.25);
    }
    .category-feature{
      display:grid;grid-template-columns:1fr .86fr;gap:24px;align-items:stretch;
    }
    .feature-main{
      padding:30px;border-radius:var(--radius-xl);
      background:linear-gradient(135deg,rgba(54,200,255,.16),rgba(255,255,255,.055));
      border:1px solid rgba(54,200,255,.26);
      box-shadow:var(--shadow);
      display:flex;flex-direction:column;justify-content:space-between;gap:26px;
      min-height:360px;
    }
    .feature-cover{
      border-radius:var(--radius-xl);overflow:hidden;min-height:360px;
      border:1px solid rgba(173,216,255,.16);
      position:relative;
    }
    .feature-cover img{width:100%;height:100%;object-fit:cover;filter:saturate(1.08) contrast(1.05)}
    .feature-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent,rgba(5,16,31,.72))}
    .tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
    .tag{
      display:inline-flex;align-items:center;
      padding:7px 11px;border-radius:999px;
      background:rgba(54,200,255,.11);
      border:1px solid rgba(54,200,255,.2);
      color:#dff8ff;font-size:.86rem;font-weight:750;
    }
    .results-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .result-card{padding:26px;position:relative;overflow:hidden}
    .result-card::before{
      content:"";position:absolute;right:-48px;top:-48px;width:150px;height:150px;
      background:radial-gradient(circle,rgba(54,200,255,.18),transparent 68%);
    }
    .result-card .value{font-size:2.5rem;line-height:1;font-weight:950;color:#fff;margin-bottom:16px}
    .result-card .value span{color:var(--primary)}
    .content-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:20px}
    .content-card{overflow:hidden}
    .content-card.large{display:grid;grid-template-columns:.92fr 1fr}
    .thumb{position:relative;overflow:hidden;background:#0b2442;min-height:220px}
    .content-card.large .thumb{min-height:100%}
    .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
    .content-card:hover .thumb img{transform:scale(1.06)}
    .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent,rgba(5,16,31,.65))}
    .content-body{padding:24px}
    .meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;color:var(--muted-2);font-size:.86rem;margin:12px 0}
    .card-link{
      display:inline-flex;align-items:center;gap:8px;margin-top:18px;
      color:var(--accent);font-weight:850;
      transition:gap .22s var(--ease),color .22s var(--ease);
    }
    .card-link:hover{gap:12px;color:#fff}
    .testimonials{display:grid;grid-template-columns:1.05fr .95fr;gap:22px;align-items:stretch}
    .quote-card{
      padding:34px;border-radius:var(--radius-xl);
      background:linear-gradient(135deg,rgba(110,139,255,.18),rgba(255,255,255,.06));
      border:1px solid rgba(173,216,255,.16);
      box-shadow:var(--shadow);
    }
    .quote-card blockquote{font-size:1.4rem;line-height:1.65;font-weight:800;margin-bottom:22px}
    .testimonial-list{display:grid;gap:16px}
    .testimonial{padding:22px}
    .testimonial .who{display:flex;align-items:center;gap:12px;margin-top:16px}
    .avatar{
      width:42px;height:42px;border-radius:15px;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      display:grid;place-items:center;color:#03111f;font-weight:950;
    }
    .faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px;align-items:start}
    .faq-list{display:grid;gap:14px}
    .faq-item{overflow:hidden}
    .faq-question{
      width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
      padding:20px 22px;text-align:left;background:transparent;color:#fff;font-weight:850;
    }
    .faq-question:focus-visible{outline:3px solid rgba(54,200,255,.36);outline-offset:-3px}
    .faq-question .plus{
      width:30px;height:30px;border-radius:11px;display:grid;place-items:center;flex:0 0 auto;
      background:rgba(54,200,255,.12);border:1px solid rgba(54,200,255,.22);
      transition:transform .22s var(--ease),background .22s var(--ease);
    }
    .faq-answer{display:none;padding:0 22px 22px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .plus{transform:rotate(45deg);background:rgba(84,240,194,.16)}
    .cta-band{
      position:relative;overflow:hidden;
      display:grid;grid-template-columns:1fr .78fr;gap:28px;align-items:center;
      padding:34px;border-radius:32px;
      background:
        linear-gradient(135deg,rgba(54,200,255,.2),rgba(110,139,255,.12)),
        linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.04));
      border:1px solid rgba(54,200,255,.25);
      box-shadow:var(--shadow);
    }
    .cta-band::before{
      content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;
      background:radial-gradient(circle,rgba(84,240,194,.2),transparent 68%);
    }
    .contact-card{padding:22px;position:relative;z-index:1}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .field{display:flex;flex-direction:column;gap:7px}
    .field.full{grid-column:1/-1}
    .field label{font-size:.86rem;color:#dcecff;font-weight:750}
    .field input,.field textarea{
      width:100%;border-radius:14px;
      background:rgba(3,14,28,.45);
      border:1px solid rgba(173,216,255,.16);
      padding:12px 13px;color:#fff;
      transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
    }
    .field textarea{min-height:88px;resize:vertical}
    .field input::placeholder,.field textarea::placeholder{color:#6e8097}
    .field input:focus,.field textarea:focus{
      border-color:rgba(54,200,255,.55);
      box-shadow:0 0 0 4px rgba(54,200,255,.12);
      background:rgba(3,14,28,.62);
    }
    .site-footer{
      margin-top:60px;padding:54px 0 98px;
      background:linear-gradient(180deg,rgba(3,12,24,.38),rgba(2,8,16,.9));
      border-top:1px solid rgba(173,216,255,.13);
    }
    .footer-grid{display:grid;grid-template-columns:1.2fr .7fr .7fr 1fr;gap:28px}
    .footer-title{font-weight:900;color:#fff;margin-bottom:12px}
    .footer-links{display:grid;gap:9px}
    .footer-links a,.footer-note{color:var(--muted);font-size:.94rem}
    .footer-links a:hover{color:#fff}
    .copyright{
      margin-top:34px;padding-top:22px;border-top:1px solid rgba(173,216,255,.12);
      display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
      color:var(--muted-2);font-size:.9rem;
    }
    .bottom-tabs{
      position:fixed;left:12px;right:12px;bottom:12px;z-index:120;
      display:none;grid-template-columns:repeat(4,1fr);gap:8px;
      padding:9px;border-radius:22px;
      background:rgba(5,16,31,.88);
      border:1px solid rgba(173,216,255,.18);
      backdrop-filter:blur(18px);
      box-shadow:0 18px 60px rgba(0,0,0,.42);
    }
    .bottom-tabs a{
      display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
      min-height:50px;border-radius:16px;color:var(--muted);font-size:.76rem;font-weight:800;
      transition:background .2s var(--ease),color .2s var(--ease);
    }
    .bottom-tabs a .tab-icon{font-size:1.05rem;line-height:1}
    .bottom-tabs a.active,.bottom-tabs a:hover{background:rgba(54,200,255,.13);color:#fff}
    @media (max-width:1100px){
      .hero-grid,.solution-wrap,.category-feature,.testimonials,.faq-layout,.cta-band{grid-template-columns:1fr}
      .visual-stack{min-height:470px}
      .solution-aside{position:relative;top:auto;min-height:360px}
      .solution-aside h2{margin-top:100px}
      .stats-strip,.pain-grid{grid-template-columns:repeat(2,1fr)}
      .results-grid{grid-template-columns:1fr 1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
      .content-card.large{grid-template-columns:1fr}
    }
    @media (max-width:768px){
      :root{--header-h:68px}
      .container{width:min(100% - 28px,var(--container))}
      .site-header{height:var(--header-h)}
      .brand-mark{width:38px;height:38px;border-radius:14px}
      .brand-text strong{font-size:.95rem}
      .brand-text span{display:none}
      .menu-toggle{display:block}
      .nav-links{
        position:absolute;left:14px;right:14px;top:calc(var(--header-h) + 10px);
        display:none;flex-direction:column;align-items:stretch;border-radius:20px;padding:10px;
        background:rgba(5,16,31,.94);box-shadow:var(--shadow);
      }
      .nav-links.open{display:flex}
      .nav-links a{text-align:center;border-radius:15px}
      .nav-action .btn{display:none}
      .hero{padding:34px 0 22px;min-height:auto}
      .hero-grid{gap:18px}
      .hero-actions .btn{flex:1 1 100%}
      .visual-stack{min-height:420px}
      .dashboard{inset:18px 0 auto 0}
      .float-card{right:0;bottom:10px;width:236px}
      .orbit{left:4px;bottom:34px;width:84px;height:84px;border-radius:24px}
      .orbit span{width:44px;height:44px}
      .section{padding:64px 0}
      .section-head{display:block}
      .stats-strip,.pain-grid,.results-grid,.content-grid{grid-template-columns:1fr}
      .metric-grid{grid-template-columns:1fr}
      .form-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:block}
      .bottom-tabs{display:grid}
      .site-footer{padding-bottom:108px}
    }
    @media (max-width:520px){
      h1{font-size:2.25rem}
      h2{font-size:1.7rem}
      .hero-copy{padding-top:10px}
      .glass-panel{border-radius:22px}
      .dashboard{padding:16px;min-height:360px}
      .visual-stack{min-height:385px}
      .float-card{position:relative;width:auto;margin:0 10px;bottom:auto;top:300px}
      .step{grid-template-columns:1fr}
      .step:not(:last-child)::after{display:none}
      .cta-band{padding:22px;border-radius:24px}
      .section{padding:54px 0}
    }

/* roulang page: category1 */
:root{
  --bg-0:#06101f;
  --bg-1:#081427;
  --bg-2:#0f1f39;
  --bg-3:#14284a;
  --surface:rgba(14,23,41,.72);
  --surface-strong:rgba(10,18,34,.92);
  --surface-soft:rgba(255,255,255,.04);
  --line:rgba(176,201,255,.14);
  --line-strong:rgba(76,201,255,.26);
  --text:#eef4ff;
  --muted:#a5b6d0;
  --muted-2:#7f93b4;
  --primary:#4cc9ff;
  --primary-2:#7b61ff;
  --accent:#37d8b0;
  --warning:#ffcf5c;
  --shadow-lg:0 24px 60px rgba(2,10,24,.42);
  --shadow-md:0 14px 34px rgba(2,10,24,.28);
  --shadow-sm:0 8px 22px rgba(2,10,24,.18);
  --radius-xl:28px;
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:12px;
  --container:1280px;
  --header-h:82px;
  --transition:.24s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;
  color:var(--text);
  line-height:1.72;
  background:
    radial-gradient(circle at 18% 14%, rgba(76,201,255,.12), transparent 22%),
    radial-gradient(circle at 82% 10%, rgba(123,97,255,.14), transparent 20%),
    radial-gradient(circle at 72% 70%, rgba(55,216,176,.08), transparent 24%),
    linear-gradient(180deg, #06101f 0%, #081427 42%, #050b15 100%);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size:80px 80px;
  mask-image:linear-gradient(180deg, rgba(0,0,0,.58), transparent 96%);
  opacity:.36;
  z-index:0;
}
img{display:block; max-width:100%; height:auto}
a{color:inherit; text-decoration:none; transition:color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition), opacity var(--transition)}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:3px;
}
::selection{background:rgba(76,201,255,.26); color:var(--text)}
.container{
  width:min(calc(100% - 32px), var(--container));
  margin-inline:auto;
  position:relative;
  z-index:1;
}
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(5,12,24,.56);
  border-bottom:1px solid rgba(176,201,255,.12);
  backdrop-filter:saturate(150%) blur(18px);
  -webkit-backdrop-filter:saturate(150%) blur(18px);
  transition:background var(--transition), box-shadow var(--transition), transform var(--transition);
}
.site-header.scrolled{
  background:rgba(6,14,28,.84);
  box-shadow:0 12px 32px rgba(0,0,0,.26);
}
.header-inner{
  min-height:var(--header-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:0;
}
.brand-mark{
  width:42px;
  height:42px;
  border-radius:14px;
  display:grid;
  place-items:center;
  color:#06101f;
  font-weight:900;
  letter-spacing:.04em;
  background:
    linear-gradient(135deg, rgba(76,201,255,1), rgba(123,97,255,1));
  box-shadow:0 10px 25px rgba(76,201,255,.22), inset 0 1px 0 rgba(255,255,255,.22);
  flex:none;
}
.brand-text{
  display:grid;
  min-width:0;
}
.brand-text strong{
  font-size:1rem;
  line-height:1.18;
  letter-spacing:.01em;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.brand-text span{
  font-size:.83rem;
  color:var(--muted);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  padding:6px;
  border:1px solid rgba(176,201,255,.1);
  background:rgba(10,18,33,.34);
  border-radius:999px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
}
.nav-links a{
  position:relative;
  padding:11px 16px;
  border-radius:999px;
  color:var(--muted);
  border:1px solid transparent;
  white-space:nowrap;
  font-size:.96rem;
}
.nav-links a:hover{
  color:var(--text);
  background:rgba(255,255,255,.05);
  border-color:rgba(176,201,255,.1);
}
.nav-links a.active,
.nav-links a[aria-current="page"]{
  color:var(--text);
  background:linear-gradient(135deg, rgba(76,201,255,.18), rgba(123,97,255,.16));
  border-color:rgba(76,201,255,.24);
  box-shadow:0 10px 24px rgba(76,201,255,.12);
}
.header-cta{
  min-height:46px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:0 18px;
  border-radius:14px;
  font-weight:700;
  letter-spacing:.01em;
}
.menu-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:46px;
  height:46px;
  border-radius:14px;
  border:1px solid rgba(176,201,255,.14);
  background:rgba(255,255,255,.04);
  color:var(--text);
}
.menu-toggle span{
  display:block;
  width:18px;
  height:2px;
  background:currentColor;
  position:relative;
  border-radius:999px;
}
.menu-toggle span::before,
.menu-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:currentColor;
  border-radius:999px;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.nav-panel{
  display:none;
  position:fixed;
  left:16px;
  right:16px;
  top:calc(var(--header-h) + 10px);
  z-index:58;
  padding:14px;
  border-radius:22px;
  border:1px solid rgba(176,201,255,.14);
  background:rgba(8,16,30,.94);
  box-shadow:var(--shadow-lg);
}
.nav-panel .panel-links{
  display:grid;
  gap:8px;
}
.nav-panel .panel-links a,
.nav-panel .panel-cta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 16px;
  border-radius:16px;
  border:1px solid rgba(176,201,255,.12);
  background:rgba(255,255,255,.03);
  color:var(--text);
}
.nav-panel .panel-links a.active{
  background:linear-gradient(135deg, rgba(76,201,255,.18), rgba(123,97,255,.16));
  border-color:rgba(76,201,255,.2);
}
.hero{
  position:relative;
  padding:32px 0 18px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(180deg, rgba(6,16,31,.28), rgba(6,16,31,.74)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.25;
  filter:saturate(1.05);
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 12% 20%, rgba(76,201,255,.14), transparent 18%),
    radial-gradient(circle at 86% 22%, rgba(123,97,255,.16), transparent 16%);
}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:28px;
  align-items:center;
  min-height:calc(100vh - 140px);
  padding:26px 0 20px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:999px;
  background:rgba(76,201,255,.09);
  border:1px solid rgba(76,201,255,.18);
  color:var(--primary);
  font-size:.9rem;
  font-weight:700;
  letter-spacing:.04em;
}
.hero h1{
  margin:18px 0 16px;
  font-size:clamp(2.1rem, 4.6vw, 4.8rem);
  line-height:1.05;
  letter-spacing:-.04em;
  text-wrap:balance;
}
.hero-lead{
  margin:0;
  max-width:64ch;
  color:rgba(238,244,255,.9);
  font-size:1.06rem;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:48px;
  padding:0 18px;
  border-radius:14px;
  border:1px solid transparent;
  font-weight:700;
  letter-spacing:.01em;
  transition:transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), opacity var(--transition);
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-primary{
  color:#06101f;
  background:linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow:0 18px 32px rgba(76,201,255,.18);
}
.btn-primary:hover{
  box-shadow:0 24px 42px rgba(76,201,255,.22);
}
.btn-secondary{
  color:var(--text);
  background:rgba(255,255,255,.04);
  border-color:rgba(176,201,255,.14);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
}
.btn-secondary:hover{
  background:rgba(255,255,255,.06);
  border-color:rgba(76,201,255,.24);
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(176,201,255,.12);
  color:var(--muted);
  font-size:.92rem;
}
.hero-visual{
  position:relative;
  display:grid;
  gap:16px;
  align-items:start;
}
.visual-frame{
  position:relative;
  overflow:hidden;
  border-radius:28px;
  border:1px solid rgba(176,201,255,.16);
  background:var(--surface);
  box-shadow:var(--shadow-lg);
  isolation:isolate;
}
.visual-frame img{
  width:100%;
  aspect-ratio: 1.02 / 1;
  object-fit:cover;
  filter:saturate(1.02) contrast(1.02);
  transform:scale(1.01);
}
.visual-overlay{
  position:absolute;
  inset:0;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  padding:22px;
  background:linear-gradient(180deg, rgba(5,11,20,.12), rgba(5,11,20,.68));
}
.overlay-top{
  display:flex;
  justify-content:space-between;
  gap:12px;
  align-items:flex-start;
}
.overlay-badge{
  padding:8px 12px;
  border-radius:999px;
  background:rgba(8,16,30,.56);
  border:1px solid rgba(255,255,255,.08);
  color:#f4f8ff;
  font-size:.86rem;
  backdrop-filter:blur(10px);
}
.overlay-note{
  max-width:22ch;
  font-size:.94rem;
  color:rgba(238,244,255,.94);
  text-align:right;
}
.float-stack{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px;
}
.float-card{
  padding:16px 16px 15px;
  border-radius:20px;
  background:rgba(11,19,35,.84);
  border:1px solid rgba(176,201,255,.12);
  box-shadow:var(--shadow-md);
}
.float-card strong{
  display:block;
  font-size:1.02rem;
  margin-bottom:6px;
}
.float-card span{
  display:block;
  color:var(--muted);
  font-size:.92rem;
}
.section{
  padding:22px 0;
  position:relative;
  z-index:1;
}
.section-heading{
  display:flex;
  flex-direction:column;
  gap:10px;
  margin-bottom:18px;
}
.section-heading .eyebrow{
  width:max-content;
}
.section-heading h2{
  margin:0;
  font-size:clamp(1.5rem, 2.6vw, 2.35rem);
  line-height:1.15;
  letter-spacing:-.02em;
}
.section-heading p{
  margin:0;
  color:var(--muted);
  max-width:68ch;
}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4, minmax(0,1fr));
  gap:14px;
}
.stat-card{
  padding:18px;
  border-radius:20px;
  background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025));
  border:1px solid rgba(176,201,255,.12);
  box-shadow:var(--shadow-sm);
  transition:transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.stat-card:hover{
  transform:translateY(-3px);
  border-color:rgba(76,201,255,.24);
  box-shadow:0 18px 36px rgba(2,10,24,.26);
}
.stat-card .label{
  color:var(--muted);
  font-size:.9rem;
}
.stat-card .value{
  margin-top:8px;
  font-size:1.2rem;
  font-weight:800;
  letter-spacing:-.02em;
}
.stat-card .desc{
  margin-top:8px;
  color:var(--muted-2);
  font-size:.92rem;
}
.pain-grid{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:16px;
}
.pain-card{
  padding:20px;
  border-radius:22px;
  background:var(--surface);
  border:1px solid rgba(176,201,255,.12);
  box-shadow:var(--shadow-md);
}
.pain-head{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:14px;
}
.pain-icon{
  width:42px;
  height:42px;
  border-radius:14px;
  display:grid;
  place-items:center;
  color:var(--primary);
  background:rgba(76,201,255,.1);
  border:1px solid rgba(76,201,255,.16);
  flex:none;
}
.pain-card h3{
  margin:0;
  font-size:1.08rem;
}
.pain-card p{
  margin:0;
  color:var(--muted);
}
.pain-list{
  margin:14px 0 0;
  padding:0;
  list-style:none;
  display:grid;
  gap:10px;
}
.pain-list li{
  display:flex;
  gap:10px;
  color:rgba(238,244,255,.88);
}
.pain-list li::before{
  content:"";
  width:8px;
  height:8px;
  margin-top:.62em;
  border-radius:50%;
  background:linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow:0 0 0 6px rgba(76,201,255,.08);
  flex:none;
}
.section-accent{
  background:
    linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,0)),
    radial-gradient(circle at 20% 0%, rgba(123,97,255,.08), transparent 26%);
}
.timeline-grid{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:16px;
}
.step-card{
  position:relative;
  padding:22px;
  border-radius:22px;
  background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
  border:1px solid rgba(176,201,255,.12);
  box-shadow:var(--shadow-md);
  overflow:hidden;
}
.step-card::after{
  content:"";
  position:absolute;
  inset:auto -10px -10px auto;
  width:120px;
  height:120px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(76,201,255,.16), transparent 72%);
  pointer-events:none;
}
.step-top{
  display:flex;
  gap:14px;
  align-items:flex-start;
}
.step-index{
  width:44px;
  height:44px;
  border-radius:15px;
  display:grid;
  place-items:center;
  font-weight:800;
  color:#06101f;
  background:linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow:0 12px 24px rgba(76,201,255,.14);
  flex:none;
}
.step-card h3{
  margin:0 0 8px;
  font-size:1.08rem;
}
.step-card p{
  margin:0;
  color:var(--muted);
}
.step-meta{
  margin-top:14px;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:7px 10px;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(176,201,255,.1);
  color:var(--muted);
  font-size:.86rem;
}
.topic-layout{
  display:grid;
  grid-template-columns:minmax(0,1.72fr) minmax(280px,.88fr);
  gap:20px;
  align-items:start;
}
.featured-card{
  display:grid;
  grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
  overflow:hidden;
  border-radius:28px;
  background:var(--surface);
  border:1px solid rgba(176,201,255,.14);
  box-shadow:var(--shadow-lg);
}
.featured-card .cover{
  position:relative;
  min-height:320px;
}
.featured-card .cover img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.cover::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(5,12,24,.04), rgba(5,12,24,.56));
}
.featured-body{
  padding:24px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  gap:18px;
}
.featured-body h3{
  margin:12px 0 10px;
  font-size:1.5rem;
  line-height:1.2;
}
.featured-body p,
.content-card p{
  margin:0;
  color:var(--muted);
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  color:var(--muted);
  font-size:.9rem;
}
.card-actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.content-grid{
  margin-top:16px;
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:16px;
}
.content-card{
  overflow:hidden;
  border-radius:22px;
  background:var(--surface);
  border:1px solid rgba(176,201,255,.12);
  box-shadow:var(--shadow-md);
  transition:transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.content-card:hover{
  transform:translateY(-4px);
  border-color:rgba(76,201,255,.24);
  box-shadow:0 20px 40px rgba(2,10,24,.28);
}
.content-thumb{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/9;
}
.content-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .45s ease;
}
.content-card:hover .content-thumb img{
  transform:scale(1.05);
}
.content-thumb::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(5,12,24,.08), rgba(5,12,24,.42));
}
.content-body{
  padding:18px;
  display:grid;
  gap:12px;
}
.content-body h3{
  margin:0;
  font-size:1.05rem;
  line-height:1.35;
}
.content-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  color:var(--muted);
  font-size:.88rem;
}
.content-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--text);
  font-weight:700;
}
.content-link:hover{color:var(--primary)}
.topic-aside{
  position:sticky;
  top:104px;
  display:grid;
  gap:16px;
}
.side-box{
  padding:20px;
  border-radius:22px;
  background:rgba(10,18,34,.84);
  border:1px solid rgba(176,201,255,.12);
  box-shadow:var(--shadow-md);
}
.side-box h4{
  margin:0 0 12px;
  font-size:1.02rem;
}
.tag-cloud{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.tag-chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:9px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(176,201,255,.12);
  color:var(--muted);
  font-size:.88rem;
}
.quick-list{
  display:grid;
  gap:10px;
  margin:0;
  padding:0;
  list-style:none;
}
.quick-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:12px 14px;
  border-radius:16px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(176,201,255,.1);
}
.quick-list a:hover{
  background:rgba(255,255,255,.06);
  border-color:rgba(76,201,255,.2);
}
.result-grid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:16px;
}
.result-card{
  padding:20px;
  border-radius:22px;
  background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
  border:1px solid rgba(176,201,255,.12);
  box-shadow:var(--shadow-sm);
}
.result-card .result-kicker{
  color:var(--primary);
  font-size:.88rem;
  font-weight:700;
  letter-spacing:.03em;
}
.result-card h3{
  margin:10px 0 8px;
  font-size:1.08rem;
}
.result-card p{
  margin:0;
  color:var(--muted);
}
.testimonial-grid{
  margin-top:16px;
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:16px;
}
.quote-card{
  padding:20px;
  border-radius:22px;
  background:var(--surface);
  border:1px solid rgba(176,201,255,.12);
  box-shadow:var(--shadow-md);
}
.quote-mark{
  font-size:2rem;
  line-height:1;
  color:rgba(76,201,255,.72);
  margin-bottom:6px;
}
.quote-card p{
  margin:0;
  color:rgba(238,244,255,.9);
}
.quote-author{
  margin-top:14px;
  color:var(--muted);
  font-size:.92rem;
}
.faq-grid{
  display:grid;
  gap:14px;
}
.faq-item{
  border-radius:20px;
  background:var(--surface);
  border:1px solid rgba(176,201,255,.12);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
}
.faq-item[open]{
  border-color:rgba(76,201,255,.22);
  box-shadow:0 18px 34px rgba(2,10,24,.24);
}
.faq-item summary{
  list-style:none;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 20px;
  cursor:pointer;
  font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  width:28px;
  height:28px;
  border-radius:50%;
  display:grid;
  place-items:center;
  background:rgba(255,255,255,.04);
  color:var(--primary);
  flex:none;
  transition:transform var(--transition);
}
.faq-item[open] summary::after{
  content:"–";
}
.faq-body{
  padding:0 20px 20px;
  color:var(--muted);
}
.cta-section{
  padding-bottom:18px;
}
.cta-panel{
  padding:24px;
  border-radius:28px;
  background:
    linear-gradient(135deg, rgba(76,201,255,.12), rgba(123,97,255,.12)),
    rgba(10,18,34,.84);
  border:1px solid rgba(176,201,255,.14);
  box-shadow:var(--shadow-lg);
}
.cta-grid{
  display:grid;
  grid-template-columns:1.02fr .98fr;
  gap:20px;
  align-items:start;
}
.cta-copy h2{
  margin:0 0 12px;
  font-size:clamp(1.6rem, 2.8vw, 2.4rem);
  line-height:1.15;
}
.cta-copy p{
  margin:0;
  color:var(--muted);
}
.cta-points{
  margin:18px 0 0;
  padding:0;
  list-style:none;
  display:grid;
  gap:10px;
}
.cta-points li{
  display:flex;
  gap:10px;
  color:rgba(238,244,255,.9);
}
.cta-points li::before{
  content:"";
  width:8px;
  height:8px;
  margin-top:.62em;
  border-radius:50%;
  background:linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow:0 0 0 6px rgba(76,201,255,.08);
  flex:none;
}
.contact-form{
  display:grid;
  gap:12px;
  padding:18px;
  border-radius:22px;
  background:rgba(5,12,24,.34);
  border:1px solid rgba(176,201,255,.12);
}
.field{
  display:grid;
  gap:8px;
}
.field label{
  font-size:.93rem;
  color:rgba(238,244,255,.92);
}
.field input,
.field textarea{
  width:100%;
  padding:14px 15px;
  border-radius:14px;
  border:1px solid rgba(176,201,255,.12);
  color:var(--text);
  background:rgba(255,255,255,.04);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
  transition:border-color var(--transition), box-shadow var(--transition), background var(--transition);
}
.field input::placeholder,
.field textarea::placeholder{
  color:rgba(157,175,205,.78);
}
.field input:focus,
.field textarea:focus{
  border-color:rgba(76,201,255,.34);
  box-shadow:0 0 0 4px rgba(76,201,255,.1);
  background:rgba(255,255,255,.05);
  outline:none;
}
.helper{
  margin:0;
  color:var(--muted);
  font-size:.9rem;
}
.form-note{
  min-height:22px;
  color:var(--accent);
  font-size:.92rem;
}
.site-footer{
  margin-top:26px;
  padding:34px 0 88px;
  background:linear-gradient(180deg, rgba(6,11,19,.3), rgba(4,8,15,.92));
  border-top:1px solid rgba(176,201,255,.1);
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.3fr .8fr .8fr .9fr;
  gap:18px;
}
.footer-title{
  font-size:.96rem;
  font-weight:700;
  margin-bottom:12px;
  color:rgba(238,244,255,.96);
}
.footer-links{
  display:grid;
  gap:10px;
}
.footer-links a{
  color:var(--muted);
}
.footer-links a:hover{
  color:var(--text);
}
.footer-note{
  margin:0;
  color:var(--muted);
}
.copyright{
  margin-top:22px;
  padding-top:16px;
  border-top:1px solid rgba(176,201,255,.1);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  color:var(--muted-2);
  font-size:.9rem;
}
.mobile-tabbar{
  display:none;
}
.icon{
  width:18px;
  height:18px;
  display:inline-block;
  vertical-align:middle;
}
.icon svg{
  display:block;
  width:100%;
  height:100%;
  stroke:currentColor;
  fill:none;
  stroke-width:1.9;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.button-icon{
  width:16px;
  height:16px;
}
@media (max-width: 1200px){
  .hero-grid{min-height:auto}
  .topic-layout,
  .cta-grid{
    grid-template-columns:1fr;
  }
  .topic-aside{
    position:relative;
    top:auto;
  }
  .featured-card{
    grid-template-columns:1fr;
  }
}
@media (max-width: 1024px){
  .nav-links{display:none}
  .header-cta{display:none}
  .menu-toggle{display:inline-flex}
  .nav-panel{display:block}
  .hero-grid{
    grid-template-columns:1fr;
    gap:20px;
    padding-top:18px;
  }
  .stat-grid,
  .result-grid,
  .testimonial-grid{
    grid-template-columns:repeat(2, minmax(0,1fr));
  }
  .hero-visual{order:-1}
}
@media (max-width: 768px){
  :root{--header-h:72px}
  .header-inner{min-height:72px}
  .brand-text span{display:none}
  .hero{padding-top:22px}
  .hero h1{margin-top:16px}
  .pain-grid,
  .timeline-grid,
  .content-grid,
  .stat-grid,
  .result-grid,
  .testimonial-grid,
  .faq-grid,
  .footer-grid{
    grid-template-columns:1fr;
  }
  .hero-actions .btn,
  .cta-panel .btn{
    width:100%;
  }
  .float-stack{
    grid-template-columns:1fr;
  }
  .footer-grid{
    gap:14px;
  }
  .copyright{
    flex-direction:column;
  }
  .site-footer{
    padding-bottom:112px;
  }
}
@media (max-width: 520px){
  .container{width:min(calc(100% - 24px), var(--container))}
  .hero{
    padding-top:18px;
  }
  .hero h1{
    font-size:clamp(1.85rem, 8vw, 2.5rem);
  }
  .hero-lead{
    font-size:.98rem;
  }
  .section{
    padding:18px 0;
  }
  .section-heading h2{
    font-size:1.4rem;
  }
  .stat-card,
  .pain-card,
  .step-card,
  .result-card,
  .quote-card,
  .side-box,
  .contact-form{
    border-radius:18px;
  }
  .featured-body,
  .content-body,
  .cta-panel{
    padding:18px;
  }
  .overlay-top{
    flex-direction:column;
    align-items:flex-start;
  }
  .overlay-note{
    text-align:left;
    max-width:none;
  }
  .mobile-tabbar{
    display:flex;
    position:fixed;
    left:10px;
    right:10px;
    bottom:10px;
    z-index:70;
    padding:8px 8px calc(8px + env(safe-area-inset-bottom));
    border-radius:22px;
    background:rgba(8,16,30,.92);
    border:1px solid rgba(176,201,255,.14);
    box-shadow:var(--shadow-lg);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
  }
  .mobile-tabbar a{
    flex:1;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:4px;
    padding:8px 6px;
    border-radius:16px;
    color:var(--muted);
    font-size:.78rem;
    line-height:1.1;
  }
  .mobile-tabbar a.active{
    color:var(--text);
    background:rgba(255,255,255,.05);
  }
  .mobile-tabbar a svg{
    width:18px;
    height:18px;
  }
  .site-footer{padding-bottom:130px}
}
@media (hover:hover){
  .btn:hover,
  .content-card:hover,
  .stat-card:hover{
    will-change:transform;
  }
}