:root{
      --bg:#f7f3eb;
      --bg2:#fffaf2;
      --card:#ffffff;
      --text:#172033;
      --muted:#5f6b7c;
      --line:#e7ddd1;
      --brand:#ff4d6d;
      --brand2:#ff8a00;
      --brand3:#7c5cff;
      --shadow:0 18px 50px rgba(37, 50, 77, .10);
      --radius:22px;
      --container:1180px;
    }
    *{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", Arial, sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(255,77,109,.12), transparent 22%),
        radial-gradient(circle at top right, rgba(124,92,255,.10), transparent 18%),
        linear-gradient(180deg, #fffdf8 0%, var(--bg) 36%, #f6efe6 100%);
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    header,main,footer{position:relative; z-index:1}
    .topbar{
      position:sticky; top:0; z-index:20;
      backdrop-filter: blur(14px);
      background: rgba(255,250,242,.82);
      border-bottom:1px solid rgba(231,221,209,.75);
    }
    .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; padding:4px; box-shadow:0 8px 24px rgba(0,0,0,.08)}
    .brand strong{display:block; font-size:1.02rem; letter-spacing:.5px}
    .brand span{display:block; font-size:.82rem; color:var(--muted)}
    .nav-links{display:flex; flex-wrap:wrap; gap:8px; align-items:center; justify-content:flex-end}
    .nav-links a{
      padding:9px 12px; border:1px solid transparent; border-radius:999px;
      color:#253044; font-size:.93rem; transition:.25s ease;
    }
    .nav-links a:hover,.nav-links a.active{background:#fff; border-color:var(--line); box-shadow:0 10px 24px rgba(34,40,60,.08)}
    .nav-cta{display:flex; gap:10px; align-items:center}
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
      border:none; border-radius:999px; padding:12px 18px; cursor:pointer;
      font-weight:700; transition:.25s ease; box-shadow:none;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2)); color:#fff; box-shadow:0 14px 28px rgba(255,77,109,.25)}
    .btn-secondary{background:#fff; color:var(--text); border:1px solid var(--line)}
    .btn:hover{transform:translateY(-2px)}
    .menu-toggle{display:none; background:#fff; border:1px solid var(--line); width:42px; height:42px; border-radius:12px}
    .menu-toggle span{display:block; width:18px; height:2px; background:#2b3445; margin:4px auto; border-radius:2px}
    .hero{
      padding:52px 0 28px;
    }
    .hero-grid{
      display:grid; grid-template-columns:1.18fr .82fr; gap:24px; align-items:stretch;
    }
    .hero-card,.side-card,.section-card,.stat-card,.feature-card,.process-card,.review-card,.case-card,.faq-item,.article-card,.compare-card,.timeline-card,.network-card,.tag-cloud,.form-card{
      background:rgba(255,255,255,.9);
      border:1px solid rgba(231,221,209,.95);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .hero-card{
      padding:34px;
      overflow:hidden;
      position:relative;
      background:
        linear-gradient(145deg, rgba(255,255,255,.96), rgba(255,249,242,.92)),
        radial-gradient(circle at top right, rgba(255,77,109,.08), transparent 28%);
    }
    .hero-card::before{
      content:"";
      position:absolute; inset:auto -40px -40px auto;
      width:210px; height:210px; border-radius:50%;
      background:radial-gradient(circle, rgba(255,138,0,.25), rgba(255,138,0,0) 65%);
      pointer-events:none;
    }
    .eyebrow{
      display:inline-flex; align-items:center; gap:8px;
      padding:7px 12px; border-radius:999px; background:#fff0f3;
      color:#b51f44; font-weight:700; font-size:.86rem; border:1px solid #ffd5df;
    }
    h1{margin:.7rem 0 1rem; font-size:clamp(2rem, 5vw, 3.6rem); line-height:1.12; letter-spacing:-.03em}
    .hero p{margin:0 0 18px; color:var(--muted); font-size:1.03rem}
    .hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin:22px 0 18px}
    .hero-points{display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-top:20px}
    .mini-stat{
      padding:14px 14px 12px; background:#fff; border:1px solid var(--line); border-radius:18px;
    }
    .mini-stat strong{display:block; font-size:1.02rem; margin-bottom:4px}
    .mini-stat span{font-size:.9rem; color:var(--muted)}
    .hero-side{
      display:grid; gap:16px;
    }
    .side-card{padding:22px}
    .side-card h2,.section-title{margin:0 0 10px; font-size:1.35rem}
    .side-card p,.section-desc{margin:0; color:var(--muted)}
    .quick-list{display:grid; gap:10px; margin-top:16px}
    .quick-item{
      display:flex; align-items:flex-start; gap:10px; padding:12px; background:#fff8f4; border-radius:16px; border:1px solid #ffe2d4;
    }
    .dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2)); margin-top:7px; flex:0 0 auto}
    .section{padding:16px 0 4px}
    .section-card{padding:28px}
    .section-head{display:flex; justify-content:space-between; gap:14px; align-items:end; margin-bottom:18px}
    .section-head .section-title{font-size:1.5rem}
    .grid-4{display:grid; grid-template-columns:repeat(4,1fr); gap:16px}
    .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .stat-card{padding:20px; background:linear-gradient(180deg,#fff, #fffaf6)}
    .stat-card strong{font-size:1.9rem; display:block; margin-bottom:6px}
    .stat-card span{color:var(--muted)}
    .feature-card,.process-card,.case-card,.review-card,.article-card,.compare-card,.timeline-card,.network-card,.faq-item,.tag-cloud{padding:20px}
    .feature-card h3,.process-card h3,.case-card h3,.review-card h3,.article-card h3,.timeline-card h3,.network-card h3{margin:0 0 8px; font-size:1.05rem}
    .feature-card p,.process-card p,.case-card p,.review-card p,.article-card p,.timeline-card p,.network-card p{margin:0; color:var(--muted)}
    .feature-tag{
      display:inline-flex; margin-bottom:12px; padding:6px 10px; border-radius:999px;
      background:linear-gradient(135deg, rgba(255,77,109,.12), rgba(124,92,255,.12)); color:#6a2547; font-weight:700; font-size:.84rem;
    }
    .tool-badges,.tag-list{display:flex; flex-wrap:wrap; gap:10px; margin-top:14px}
    .badge{
      padding:8px 11px; background:#fff; border:1px solid var(--line); border-radius:999px; color:#2d3647; font-size:.88rem;
    }
    .comparison-table{width:100%; border-collapse:separate; border-spacing:0; overflow:hidden; min-width:760px}
    .comparison-wrap{overflow-x:auto; border-radius:18px; border:1px solid var(--line)}
    .comparison-table th,.comparison-table td{padding:14px 12px; text-align:left; border-bottom:1px solid #eee5da; vertical-align:top}
    .comparison-table th{background:#fff7f2; color:#273044; font-size:.94rem}
    .comparison-table tr:last-child td{border-bottom:none}
    .rating{
      display:inline-flex; align-items:center; gap:8px; padding:8px 12px; border-radius:999px;
      background:#fff2f5; color:#a3173f; font-weight:800;
    }
    .form-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:14px}
    label{display:block; font-size:.92rem; font-weight:700; margin-bottom:8px}
    input,select,textarea{
      width:100%; border:1px solid #dccfc0; background:#fff; color:var(--text);
      border-radius:14px; padding:12px 14px; font:inherit; outline:none; transition:.2s ease;
    }
    textarea{min-height:120px; resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#ff6f89; box-shadow:0 0 0 4px rgba(255,77,109,.12)}
    .form-actions{display:flex; gap:12px; flex-wrap:wrap; margin-top:14px}
    .accordion{display:grid; gap:12px}
    details{border:1px solid var(--line); border-radius:18px; background:#fff; overflow:hidden}
    summary{list-style:none; cursor:pointer; padding:16px 18px; font-weight:800; color:#24304a}
    summary::-webkit-details-marker{display:none}
    details .answer{padding:0 18px 16px; color:var(--muted)}
    .reviews-grid,.case-grid,.article-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .stars{color:#ff9f1c; letter-spacing:2px; margin-bottom:10px}
    .case-card .meta,.article-card .meta,.timeline-card .meta{display:flex; flex-wrap:wrap; gap:8px; margin-bottom:10px}
    .small-pill{padding:6px 10px; background:#f7f1ff; color:#5a3bd6; border-radius:999px; font-size:.82rem; font-weight:700}
    .timeline{display:grid; gap:14px}
    .timeline-card{display:grid; grid-template-columns:auto 1fr; gap:14px; align-items:start}
    .timeline-num{
      width:38px; height:38px; border-radius:12px; display:grid; place-items:center;
      background:linear-gradient(135deg,var(--brand),var(--brand3)); color:#fff; font-weight:800;
    }
    .footer{
      margin-top:18px;
      padding:26px 0 22px;
      background:#191f2e;
      color:#f5f7fb;
    }
    .footer .container{display:grid; gap:18px}
    .footer-grid{display:grid; grid-template-columns:1.2fr .8fr; gap:18px}
    .footer a{color:#fff}
    .footer .muted{color:#c7cfde}
    .footer-links{display:flex; flex-wrap:wrap; gap:10px}
    .footer-links a{padding:8px 11px; border:1px solid rgba(255,255,255,.14); border-radius:999px; background:rgba(255,255,255,.06)}
    .contact-row{display:flex; flex-wrap:wrap; gap:14px; align-items:center}
    .contact-box{display:grid; gap:10px}
    .contact-box img{width:112px; height:112px; object-fit:cover; border-radius:16px; background:#fff; padding:6px}
    .floating{
      position:fixed; right:16px; bottom:16px; z-index:30; display:grid; gap:10px;
    }
    .float-btn{
      width:54px; height:54px; border-radius:16px; display:grid; place-items:center;
      background:linear-gradient(135deg,var(--brand),var(--brand2)); color:#fff; box-shadow:0 14px 28px rgba(255,77,109,.28);
      border:none; cursor:pointer; font-size:1.1rem;
    }
    .float-panel{
      position:fixed; right:16px; bottom:84px; z-index:29; width:min(320px, calc(100vw - 32px));
      background:#fff; border:1px solid var(--line); border-radius:20px; box-shadow:var(--shadow);
      padding:16px; display:none;
    }
    .float-panel.show{display:block}
    .float-panel h3{margin:0 0 10px}
    .float-panel .contact-row{align-items:flex-start}
    .subtle{color:var(--muted); font-size:.92rem}
    .mobile-only{display:none}
    .sticky-strip{display:flex; gap:10px; flex-wrap:wrap; margin-top:16px}
    .highlight{
      background:linear-gradient(135deg, rgba(255,77,109,.12), rgba(255,138,0,.12));
      border:1px solid rgba(255,77,109,.18);
      color:#a11f46;
    }
    .anchor-space{scroll-margin-top:92px}
    .scroll-reveal{opacity:0; transform:translateY(16px); transition:.65s ease}
    .scroll-reveal.in{opacity:1; transform:none}
    @media (max-width: 980px){
      .hero-grid,.footer-grid,.grid-4,.grid-3,.reviews-grid,.case-grid,.article-grid{grid-template-columns:1fr 1fr}
      .hero-points{grid-template-columns:1fr}
      .section-head{flex-direction:column; align-items:flex-start}
    }
    @media (max-width: 760px){
      .nav-links,.nav-cta{display:none}
      .menu-toggle{display:inline-block}
      .mobile-only{display:block}
      .hero{padding-top:28px}
      .hero-grid,.footer-grid,.grid-4,.grid-3,.reviews-grid,.case-grid,.article-grid,.form-grid{grid-template-columns:1fr}
      .hero-card,.section-card,.side-card{padding:20px}
      .nav{padding:12px 0}
      .comparison-table{min-width:900px}
      .floating{right:12px; bottom:12px}
    }