:root{--bg:#fffaf3;--bg2:#f7fbff;--card:#ffffff;--line:#e8e2d8;--text:#1f2937;--muted:#667085;--brand:#ff7a59;--brand2:#5b8cff;--brand3:#16b39a;--shadow:0 18px 45px rgba(31,41,55,.08);--radius:22px;--max:1180px}
    *{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--text);background:linear-gradient(180deg,#fffaf3 0%,#f7fbff 44%,#fff 100%);line-height:1.7}
    a{color:inherit;text-decoration:none} img{display:block;max-width:100%}
    .container{max-width:var(--max);margin:0 auto;padding:0 18px}
    header{position:sticky;top:0;z-index:20;background:rgba(255,250,243,.88);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid rgba(232,226,216,.8)}
    .nav{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px}
    .brand{display:flex;align-items:center;gap:12px;font-weight:800}
    .brand img{width:42px;height:42px;object-fit:contain;border-radius:12px;background:#fff;border:1px solid var(--line);padding:4px}
    .brand span{display:block;font-size:18px}
    .menu{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
    .menu a{font-size:14px;color:var(--muted);padding:8px 0;position:relative}
    .menu a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:linear-gradient(90deg,var(--brand),var(--brand2));transition:.25s}
    .menu a:hover::after,.menu a:focus::after{width:100%}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:999px;padding:12px 18px;font-weight:700;cursor:pointer;transition:.25s;box-shadow:none}
    .btn-primary{background:linear-gradient(135deg,var(--brand),#ff9f56);color:#fff;box-shadow:0 12px 28px rgba(255,122,89,.28)}
    .btn-outline{background:#fff;color:var(--text);border:1px solid var(--line)}
    .btn:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
    .nav-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px}
    main{overflow:hidden}
    section{padding:72px 0}
    .hero{padding:44px 0 54px;background:
      radial-gradient(circle at 12% 20%,rgba(255,122,89,.12),transparent 24%),
      radial-gradient(circle at 88% 15%,rgba(91,140,255,.12),transparent 23%),
      radial-gradient(circle at 45% 92%,rgba(22,179,154,.10),transparent 20%)}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:stretch}
    .hero-copy,.hero-panel,.card,.faq-item,.review,.story,.pricebox,.formbox,.compare,.info-list li,.timeline li{background:rgba(255,255,255,.82);border:1px solid rgba(232,226,216,.9);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-copy{padding:34px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:linear-gradient(135deg,rgba(255,122,89,.13),rgba(91,140,255,.13));color:#8a3d22;font-weight:700;font-size:13px}
    h1{margin:16px 0 14px;font-size:clamp(32px,5vw,54px);line-height:1.08;letter-spacing:-.03em}
    .lead{margin:0;color:var(--muted);font-size:17px;max-width:56ch}
    .hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0 18px}
    .hero-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px}
    .mini{padding:14px 14px 13px;border-radius:18px;background:linear-gradient(180deg,#fff,#f8fafc);border:1px solid var(--line)}
    .mini strong{display:block;font-size:20px}
    .mini span{font-size:13px;color:var(--muted)}
    .hero-panel{padding:28px;display:grid;gap:14px}
    .panel-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
    .panel-stat{padding:16px;border-radius:18px;background:linear-gradient(135deg,rgba(255,122,89,.10),rgba(91,140,255,.10));border:1px solid rgba(255,122,89,.16)}
    .panel-stat strong{display:block;font-size:24px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .card{padding:22px}
    .card h3,.section-title{margin:0 0 10px}
    .section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:18px;margin-bottom:22px}
    .section-head p{margin:0;color:var(--muted);max-width:62ch}
    .badge{display:inline-flex;padding:6px 10px;border-radius:999px;background:#f2f7ff;color:#2450a6;font-size:12px;font-weight:700}
    .features,.services,.cases,.reviews,.faq-grid,.articles,.network,.price-grid,.compare-grid{display:grid;gap:16px}
    .features{grid-template-columns:repeat(3,1fr)}
    .services{grid-template-columns:repeat(4,1fr)}
    .cases{grid-template-columns:repeat(3,1fr)}
    .reviews{grid-template-columns:repeat(3,1fr)}
    .faq-grid{grid-template-columns:repeat(2,1fr)}
    .articles{grid-template-columns:repeat(3,1fr)}
    .network{grid-template-columns:repeat(4,1fr)}
    .compare-grid{grid-template-columns:1.1fr .9fr}
    .chip-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .chip{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:#4b5563}
    .timeline{list-style:none;padding:0;margin:0;display:grid;gap:12px}
    .timeline li{padding:16px 18px;display:flex;gap:14px;align-items:flex-start}
    .dot{flex:0 0 12px;width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2));margin-top:6px}
    .table-wrap{overflow:auto;border-radius:20px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:780px}
    th,td{padding:16px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{background:#fff6ef;font-size:14px}
    tr:last-child td{border-bottom:none}
    .rank{color:#b45309;font-weight:800}
    .faq-item{overflow:hidden}
    .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 20px;background:transparent;border:0;color:var(--text);font-size:16px;font-weight:700;text-align:left;cursor:pointer}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 20px}
    .faq-item.open .faq-a{max-height:220px;padding-bottom:18px}
    .review p,.story p,.card p,.pricebox p,.formbox p{margin:0;color:var(--muted)}
    .stars{color:#f59e0b;font-size:18px;letter-spacing:2px}
    .price-grid{grid-template-columns:repeat(3,1fr)}
    .pricebox{padding:22px}
    .price{font-size:34px;font-weight:900;margin:8px 0;color:#1e293b}
    .formgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .formbox{padding:24px}
    label{display:block;font-size:14px;font-weight:700;margin-bottom:8px}
    input,select,textarea{width:100%;border:1px solid var(--line);border-radius:14px;background:#fff;padding:14px 14px;font:inherit;color:var(--text);outline:none;transition:.2s}
    input:focus,select:focus,textarea:focus{border-color:#ffb089;box-shadow:0 0 0 4px rgba(255,122,89,.12)}
    textarea{min-height:120px;resize:vertical}
    .full{grid-column:1/-1}
    footer{padding:24px 0 30px;border-top:1px solid var(--line);background:#fbf7ef;color:#374151}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:20px;align-items:start}
    .footer-grid a{color:#2f5aa6}
    .small{font-size:13px;color:#667085}
    .floating{position:fixed;right:16px;bottom:18px;z-index:30;display:grid;gap:10px}
    .float-btn{display:flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,var(--brand),#ff9f56);color:#fff;box-shadow:0 12px 26px rgba(255,122,89,.3);font-weight:800}
    .float-btn.secondary{background:linear-gradient(135deg,var(--brand2),#7db4ff)}
    .scrolltop{opacity:0;pointer-events:none;transform:translateY(10px);transition:.25s}
    .scrolltop.show{opacity:1;pointer-events:auto;transform:none}
    .tagbar{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
    .section-alt{background:linear-gradient(180deg,rgba(255,255,255,.1),rgba(245,248,255,.45))}
    .reveal{opacity:0;transform:translateY(16px);transition:.55s ease}
    .reveal.in{opacity:1;transform:none}
    .kpi{display:flex;gap:12px;align-items:center}
    .kpi .icon{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(255,122,89,.16),rgba(91,140,255,.16))}
    .nav-mobile{display:none}
    @media (max-width: 1024px){
      .hero-grid,.compare-grid,.footer-grid,.grid-4,.features,.services,.cases,.reviews,.faq-grid,.articles,.network,.price-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 768px){
      .menu,.nav-actions{display:none}
      .nav-toggle{display:inline-flex}
      .nav-mobile{display:none;padding:0 0 16px}
      .nav-mobile.open{display:block}
      .nav-mobile .stack{display:grid;gap:10px;padding:12px 0 0}
      .nav-mobile a{padding:12px 14px;border:1px solid var(--line);border-radius:14px;background:#fff;color:var(--text)}
      .hero-grid,.compare-grid,.footer-grid,.grid-4,.features,.services,.cases,.reviews,.faq-grid,.articles,.network,.price-grid,.formgrid{grid-template-columns:1fr}
      section{padding:56px 0}
      .hero-copy,.hero-panel{padding:22px}
      .hero-meta{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
      .floating{right:12px;bottom:12px}
    }