:root{--bg:#f6f7fb;--card:#ffffff;--card2:#fff6f0;--text:#1d2433;--muted:#5e697f;--line:#e5e9f2;--primary:#ff5a3c;--secondary:#1f6bff;--accent:#0db39e;--shadow:0 18px 40px rgba(34,46,77,.10);--radius:20px;--max:1180px}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--text);background:linear-gradient(180deg,#fff 0%,#f8faff 28%,#f6f7fb 100%)}
    a{color:inherit;text-decoration:none}img{max-width:100%;display:block}
    .container{width:min(var(--max),calc(100% - 32px));margin:0 auto}
    header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.88);backdrop-filter:saturate(140%) blur(14px);border-bottom:1px solid rgba(229,233,242,.85)}
    .nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}.brand img{width:42px;height:42px;object-fit:contain}.brand strong{display:block;font-size:16px;line-height:1.1}.brand span{display:block;font-size:12px;color:var(--muted)}
    .menu{display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:flex-end}.menu a{font-size:14px;color:#334;opacity:.92}.menu a:hover{color:var(--primary)}
    .nav-actions{display:flex;align-items:center;gap:10px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:999px;padding:11px 16px;font-weight:700;font-size:14px;transition:.22s ease;cursor:pointer;white-space:nowrap}
    .btn-primary{background:linear-gradient(135deg,var(--primary),#ff8a3d);color:#fff;box-shadow:0 10px 24px rgba(255,90,60,.24)}.btn-primary:hover{transform:translateY(-2px)}.btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}.btn-ghost:hover{border-color:#cfd7e8;transform:translateY(-2px)}
    .hamburger{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;width:44px;height:44px}
    .hero{padding:38px 0 26px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;inset:auto -16% -28% auto;width:460px;height:460px;background:radial-gradient(circle at 30% 30%,rgba(255,90,60,.16),transparent 55%),radial-gradient(circle at 70% 30%,rgba(31,107,255,.15),transparent 55%);filter:blur(10px);border-radius:50%}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch;position:relative}
    .hero-copy,.hero-panel,.section-card,.metric,.feature,.step,.review,.faq-item,.article,.support-box,.contact-box,.price-card,.info-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-copy{padding:32px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:#fff2ec;color:#c34225;border:1px solid #ffd7c8;padding:8px 12px;border-radius:999px;font-size:13px;font-weight:700}
    h1{margin:14px 0 12px;font-size:clamp(30px,4.5vw,54px);line-height:1.06;letter-spacing:-.02em}
    .lead{font-size:17px;line-height:1.8;color:var(--muted);margin:0 0 22px}
    .hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:20px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
    .mini{padding:14px 14px 12px;background:linear-gradient(180deg,#fff, #fff8f4);border:1px solid #ffe3d7;border-radius:16px}
    .mini b{display:block;font-size:18px;margin-bottom:6px}.mini span{font-size:13px;color:var(--muted);line-height:1.5}
    .hero-panel{padding:22px;display:grid;gap:16px;align-content:start;background:linear-gradient(180deg,#fff, #fffdf9)}
    .hero-panel .stats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .stat{padding:16px;border-radius:18px;background:linear-gradient(135deg,#eff6ff,#fff);border:1px solid #dce8ff}.stat:nth-child(2){background:linear-gradient(135deg,#fff0ea,#fff)}.stat:nth-child(3){background:linear-gradient(135deg,#eefdf8,#fff)}.stat:nth-child(4){background:linear-gradient(135deg,#f8f2ff,#fff)}
    .stat strong{display:block;font-size:22px;margin-bottom:4px}.stat span{color:var(--muted);font-size:13px}
    .panel-list{display:grid;gap:10px}.panel-item{display:flex;justify-content:space-between;gap:10px;padding:12px 14px;border-radius:14px;background:#f8fafc;border:1px dashed #d9e1ee;font-size:14px}
    section{padding:18px 0}.section-head{display:flex;justify-content:space-between;gap:16px;align-items:end;margin:8px 0 16px}.section-head h2{margin:0;font-size:28px;line-height:1.15}.section-head p{margin:0;color:var(--muted);max-width:720px;line-height:1.7}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .metric,.feature,.step,.review,.article,.support-box,.contact-box,.price-card,.info-card,.faq-item{padding:18px}
    .metric strong,.feature h3,.step h3,.review h3,.article h3,.support-box h3,.contact-box h3,.price-card h3{margin:0 0 8px;font-size:18px}.metric p,.feature p,.step p,.review p,.article p,.support-box p,.contact-box p,.price-card p{margin:0;color:var(--muted);line-height:1.7;font-size:14px}
    .badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:#eef5ff;color:#2850b8;font-size:12px;font-weight:700;margin-bottom:10px}
    .feature{background:linear-gradient(180deg,#fff,#fffaf7)}.feature:nth-child(3n+1){background:linear-gradient(180deg,#fff,#f6fbff)}.feature:nth-child(3n+2){background:linear-gradient(180deg,#fff,#fff7f0)}.feature:nth-child(3n+3){background:linear-gradient(180deg,#fff,#f8fff9)}
    .compare-wrap{overflow:auto;border-radius:20px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:840px}th,td{padding:14px 16px;border-bottom:1px solid #edf1f7;text-align:left;font-size:14px;vertical-align:top}th{background:#f8fbff;font-size:13px;color:#40506b}tbody tr:hover{background:#fffaf6}
    .rating{display:flex;gap:6px;color:#ff9a1f;font-size:18px;margin:6px 0}.score{font-size:22px;font-weight:800;color:#111827}
    .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.timeline .step{position:relative}.timeline .step:before{content:"";position:absolute;left:18px;top:18px;width:10px;height:10px;background:var(--primary);border-radius:50%;box-shadow:0 0 0 6px rgba(255,90,60,.12)}
    .step{padding-top:36px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}.tag{padding:9px 12px;border-radius:999px;background:#f7f9fd;border:1px solid #e3e8f3;color:#41506a;font-size:13px}
    .reviews .review{display:grid;gap:10px}.review .meta{display:flex;justify-content:space-between;gap:10px;color:var(--muted);font-size:13px}
    .faq-item{padding:0;overflow:hidden}.faq-q{width:100%;padding:18px;border:0;background:#fff;display:flex;justify-content:space-between;gap:10px;font-size:16px;font-weight:700;color:var(--text);cursor:pointer;text-align:left}.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 18px;color:var(--muted);line-height:1.75}.faq-item.open .faq-a{padding-bottom:18px;max-height:220px}
    .article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.article time{display:block;color:var(--secondary);font-size:12px;font-weight:700;margin-bottom:8px}
    .contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:14px;align-items:start}.form{display:grid;gap:12px}.field{display:grid;gap:8px}.field label{font-size:14px;font-weight:700}.field input,.field select,.field textarea{width:100%;padding:13px 14px;border:1px solid #d9e1ee;border-radius:14px;background:#fff;color:var(--text);font:inherit;outline:none}.field textarea{min-height:120px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{border-color:#8cb1ff;box-shadow:0 0 0 4px rgba(31,107,255,.10)}
    .footer{margin-top:10px;padding:22px 0 24px;background:#0f172a;color:#dbe4ff}.footer a{color:#fff}.footer-grid{display:grid;grid-template-columns:1.3fr .9fr 1fr;gap:16px}.footer small,.footer p,.footer li{color:#c9d4ef;line-height:1.7}.footer ul{list-style:none;padding:0;margin:10px 0 0;display:grid;gap:8px}
    .floating{position:fixed;right:16px;bottom:16px;z-index:40;display:grid;gap:10px}.floating a,.floating button{width:48px;height:48px;border-radius:16px;border:0;background:linear-gradient(135deg,var(--secondary),#7a5cff);color:#fff;box-shadow:0 12px 24px rgba(31,107,255,.22);display:grid;place-items:center;font-weight:800;cursor:pointer}
    .scroll-reveal{opacity:0;transform:translateY(18px);transition:.5s ease}.scroll-reveal.show{opacity:1;transform:none}
    .mobile-only{display:none}
    .logo-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
    .contact-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
    .contact-badges a,.contact-badges span{padding:9px 12px;border-radius:999px;background:#fff7f1;border:1px solid #ffd9c7;color:#8b3b27;font-size:13px}
    .image-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.image-strip img{border-radius:18px;border:1px solid var(--line);box-shadow:var(--shadow)}
    @media (max-width: 1024px){.hero-grid,.contact-grid,.footer-grid{grid-template-columns:1fr}.grid-4,.grid-3,.timeline,.article-list,.hero-points,.image-strip{grid-template-columns:repeat(2,1fr)}.menu{display:none}.hamburger{display:inline-grid;place-items:center}.menu.open{display:flex;position:absolute;left:16px;right:16px;top:70px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.nav{position:relative}.mobile-only{display:inline-flex}}
    @media (max-width: 640px){.container{width:min(var(--max),calc(100% - 20px))}.hero-copy,.hero-panel,.metric,.feature,.step,.review,.article,.support-box,.contact-box,.price-card,.info-card,.faq-item{padding:16px}.grid-4,.grid-3,.grid-2,.timeline,.article-list,.hero-points,.image-strip,.hero-panel .stats{grid-template-columns:1fr}.section-head{flex-direction:column;align-items:flex-start}.btn{width:100%}.nav-actions{display:none}.mobile-only{display:inline-grid}.hero{padding-top:22px}}