*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,"Microsoft YaHei",sans-serif;background:#f5f7fb;color:#172033}.nav{height:64px;display:flex;align-items:center;justify-content:space-between;max-width:1180px;margin:auto;padding:0 22px}.nav a{color:#0f766e;font-weight:800;text-decoration:none}.hero{min-height:calc(100vh - 64px);display:grid;grid-template-columns:1.08fr .92fr;gap:36px;align-items:center;max-width:1180px;margin:auto;padding:42px 22px}.tag{font-weight:800;color:#0f766e;margin:0 0 14px}.copy h1{font-size:clamp(36px,5vw,58px);line-height:1.08;margin:0 0 20px;letter-spacing:0}.sub{font-size:18px;color:#536170;max-width:720px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.primary,.secondary{min-height:46px;display:inline-flex;align-items:center;border-radius:8px;padding:0 18px;font-weight:800;text-decoration:none}.primary{background:#ef8354;color:#111}.secondary{border:1px solid #b8c5d4;color:#172033}.form{background:#fff;border:1px solid #dce5ef;border-radius:10px;padding:24px;box-shadow:0 18px 42px rgba(20,33,61,.12)}.form h2{margin:0 0 12px}label{display:block;margin:12px 0;font-weight:700}input,select,textarea{width:100%;margin-top:6px;border:1px solid #cbd5e1;border-radius:8px;padding:12px;font:inherit;background:#fff}textarea{min-height:90px;resize:vertical}button{width:100%;border:0;border-radius:8px;background:#0f766e;color:#fff;font-weight:900;padding:14px;font-size:16px;cursor:pointer}.hidden{position:absolute;left:-9999px}#msg{min-height:24px;color:#0f766e}.section{max-width:1180px;margin:auto;padding:28px 22px 56px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.section article{background:#fff;border:1px solid #dce5ef;border-radius:8px;padding:20px}.section h3{margin:0 0 8px}footer{text-align:center;color:#64748b;padding:24px;border-top:1px solid #dce5ef}@media(max-width:850px){.hero,.section{grid-template-columns:1fr}.hero{padding-top:24px}.sub{font-size:16px}}