:root{--bg:#fff9f2;--bg2:#f4f7ff;--card:#ffffff;--text:#172033;--muted:#5c677d;--line:#e7e3d8;--brand:#ff5b6e;--brand2:#4b7cff;--brand3:#ffb21e;--shadow:0 18px 50px rgba(25,35,60,.10);--radius:22px}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--text);background:linear-gradient(180deg,var(--bg) 0%,#fff 45%,#f8fbff 100%)}
    a{color:inherit;text-decoration:none}img{max-width:100%;display:block}
    .container{width:min(1180px,calc(100% - 32px));margin:0 auto}
    header{position:sticky;top:0;z-index:50;background:rgba(255,250,245,.88);backdrop-filter:blur(14px);border-bottom:1px solid rgba(231,227,216,.8)}
    .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;border-radius:12px;background:#fff;border:1px solid var(--line);padding:4px}
    .brand strong{display:block;font-size:16px;line-height:1.1}
    .brand span{display:block;color:var(--muted);font-size:12px;margin-top:3px}
    .nav-links{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#24314d;padding:9px 10px;border-radius:999px}
    .nav-links a:hover,.nav-links a.active{background:#fff;border:1px solid #e9e0d4;color:#111827}
    .menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    .hero{padding:34px 0 18px;position:relative;overflow:hidden}
    .hero:before,.hero:after{content:"";position:absolute;border-radius:999px;filter:blur(8px);opacity:.45}
    .hero:before{width:240px;height:240px;background:radial-gradient(circle,#ffcf52 0%,rgba(255,207,82,0)70%);top:-20px;right:-50px}
    .hero:after{width:280px;height:280px;background:radial-gradient(circle,#7cb1ff 0%,rgba(124,177,255,0)70%);left:-70px;top:140px}
    .hero-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:24px;align-items:stretch}
    .hero-copy,.hero-panel,.section-card,.qa-card,.form-card,.review-card,.case-card,.info-card{background:var(--card);border:1px solid rgba(231,227,216,.9);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-copy{padding:30px}
    .kicker{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:#fff2f3;border:1px solid #ffd3d8;color:#c53045;font-size:13px;font-weight:700}
    h1{margin:16px 0 12px;font-size:clamp(30px,4vw,52px);line-height:1.08}
    .hero-copy p{margin:0;color:var(--muted);font-size:16px;line-height:1.8}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 18px;border-radius:14px;font-weight:700;border:1px solid transparent;transition:.2s ease;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--brand) 0%,#ff7a3d 100%);color:#fff;box-shadow:0 14px 24px rgba(255,91,110,.22)}
    .btn-ghost{background:#fff;border-color:#e7e3d8;color:#18243c}
    .btn:hover{transform:translateY(-2px)}
    .hero-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .meta{padding:14px;border-radius:18px;background:linear-gradient(180deg,#fff,#fff7ef);border:1px solid #efe1d1}
    .meta b{display:block;font-size:18px}
    .meta span{display:block;margin-top:4px;color:var(--muted);font-size:13px;line-height:1.5}
    .hero-panel{padding:22px;background:linear-gradient(180deg,#121a2b,#1b2440);color:#fff;position:relative;overflow:hidden}
    .hero-panel:before{content:"";position:absolute;inset:auto -40px -40px auto;width:220px;height:220px;background:radial-gradient(circle,rgba(255,178,30,.35),rgba(255,178,30,0)70%);border-radius:50%}
    .hero-panel h2{margin:0 0 12px;font-size:22px}
    .pill-row{display:flex;flex-wrap:wrap;gap:10px}
    .pill{padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);font-size:13px}
    .mini-list{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:10px}
    .mini-list li{padding:12px 12px 12px 14px;border-radius:16px;background:rgba(255,255,255,.07);line-height:1.6}
    main{padding-bottom:8px}
    section{padding:18px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:14px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);max-width:720px;line-height:1.7}
    .section-card{padding:24px}
    .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}
    .info-card,.feature-card,.review-card,.case-card,.qa-card,.form-card{padding:18px}
    .stat{font-size:30px;font-weight:800;color:#13284f}
    .label{display:inline-block;font-size:12px;padding:6px 10px;border-radius:999px;background:#eef4ff;color:#3056c8;margin-bottom:10px}
    .feature-card h3,.case-card h3,.review-card h3,.info-card h3{margin:0 0 10px;font-size:18px}
    .feature-card p,.case-card p,.review-card p,.info-card p{margin:0;color:var(--muted);line-height:1.75}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:8px 12px;background:#fff;border:1px solid #e8e2d8;border-radius:999px;font-size:13px;color:#2f3a52}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:18px;border-radius:20px;background:linear-gradient(180deg,#fff,#fff9f0);border:1px solid #efdfca}
    .step .num{width:34px;height:34px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand2),#63a2ff);color:#fff;font-weight:800;margin-bottom:12px}
    .compare-wrap{overflow:auto;border-radius:20px;border:1px solid #e8e2d8}
    table{width:100%;border-collapse:collapse;min-width:860px;background:#fff}
    th,td{padding:14px 14px;border-bottom:1px solid #eee5d7;text-align:left;vertical-align:top}
    th{background:#fff8ef;font-size:14px}
    .good{color:#0f7a3f;font-weight:700}.mid{color:#b06c00;font-weight:700}.bad{color:#8b2f3b;font-weight:700}
    .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .stars{color:#ff9b12;letter-spacing:1px;font-size:18px}
    .case-card .media{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}
    .case-card .media img{border-radius:16px;border:1px solid #ece2d5;aspect-ratio:16/10;object-fit:cover;background:#f6f6f6}
    .faq details,.qa-card details{border:1px solid #eadfce;border-radius:16px;background:#fff;overflow:hidden}
    .faq details+details,.qa-card details+details{margin-top:10px}
    summary{list-style:none;cursor:pointer;padding:16px 18px;font-weight:700}
    summary::-webkit-details-marker{display:none}
    details p{margin:0;padding:0 18px 16px;color:var(--muted);line-height:1.75}
    .articles{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .article{padding:18px;border-radius:18px;border:1px solid #e8e2d8;background:#fff}
    .article a{display:block;font-weight:700;margin:10px 0;color:#13284f}
    .article small{color:var(--muted)}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    input,select,textarea{width:100%;border:1px solid #ded7c9;border-radius:14px;padding:12px 14px;font:inherit;background:#fff;color:var(--text)}
    textarea{min-height:120px;resize:vertical}
    .form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:14px}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    footer{margin-top:14px;background:#111a2f;color:#e8eefc;padding:26px 0 22px}
    footer a{color:#fff}
    .footer-grid{display:grid;grid-template-columns:1.3fr .9fr 1fr;gap:18px;align-items:start}
    .footer-grid p,.footer-grid li{color:#cfd8ee;line-height:1.75}
    .footer-grid ul{margin:0;padding-left:18px}
    .float-actions{position:fixed;right:14px;bottom:14px;z-index:60;display:grid;gap:10px}
    .float-btn{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;background:#fff;border:1px solid #e6dece;box-shadow:var(--shadow);font-size:18px}
    .back-top{opacity:0;pointer-events:none;transform:translateY(8px);transition:.2s}
    .back-top.show{opacity:1;pointer-events:auto;transform:none}
    .reveal{opacity:0;transform:translateY(18px);transition:.6s ease}
    .reveal.show{opacity:1;transform:none}
    .mobile-only{display:none}
    .anchor-note{font-size:13px;color:var(--muted)}
    @media (max-width: 980px){
      .hero-grid,.grid-4,.grid-3,.grid-2,.steps,.review-grid,.articles,.footer-grid,.form-grid{grid-template-columns:1fr}
      .hero-meta{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:start}
      .nav-links{display:none}
      .menu-btn{display:inline-flex}
      .nav.open .nav-links{display:flex;position:absolute;left:16px;right:16px;top:66px;padding:14px;background:#fff;border:1px solid #eadfce;border-radius:18px;box-shadow:var(--shadow)}
      .mobile-only{display:block}
      .case-card .media{grid-template-columns:1fr}
    }