:root{color-scheme:light;--ink:#102c2b;--muted:#627773;--brand:#087a65;--brand-dark:#066653;--soft:#edf8f4;--line:#dce8e3;--paper:#fff;--bg:#f5f8f7}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;line-height:1.75}.site-head{position:sticky;top:0;z-index:3;border-bottom:1px solid var(--line);padding:16px max(5vw,24px);background:rgba(255,255,255,.94);backdrop-filter:blur(12px)}.site-head a,.site-head strong{color:var(--ink);font-size:18px;font-weight:800;text-decoration:none}main{width:min(1100px,calc(100% - 32px));margin:auto;padding:44px 0 70px}.hero,section{margin-bottom:22px;border:1px solid var(--line);border-radius:16px;padding:30px;background:var(--paper);box-shadow:0 8px 30px rgba(22,70,58,.05)}.hero{padding:48px;background:linear-gradient(135deg,#fff,#eef9f5)}.eyebrow{margin:0 0 8px;color:var(--brand);font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}h1{max-width:820px;margin:0 0 14px;font-size:clamp(30px,5vw,52px);line-height:1.22}h2{margin-top:0;font-size:24px}h3{margin:22px 0 5px;font-size:18px}p{color:var(--muted)}.cta{display:inline-flex;align-items:center;justify-content:center;margin-top:16px;border-radius:10px;padding:13px 24px;background:var(--brand);color:#fff;font-weight:800;text-decoration:none;box-shadow:0 8px 18px rgba(8,122,101,.18)}.cta:hover{background:var(--brand-dark)}.keyword-grid,.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px;padding:0;list-style:none}.keyword-grid li,.feature-grid li{border:1px solid var(--line);border-radius:10px;padding:12px 14px;background:var(--soft);font-weight:700}.conversion{text-align:center;background:#fff9e9}.related{display:flex;flex-wrap:wrap;gap:9px}.related a,.page-grid a{border:1px solid #b9dace;border-radius:999px;padding:7px 12px;color:var(--brand);text-decoration:none}.page-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}.page-grid article{border:1px solid var(--line);border-radius:14px;padding:22px;background:#fff}.page-grid article h2{font-size:20px}footer{border-top:1px solid var(--line);padding:24px;text-align:center;color:var(--muted)}@media(max-width:680px){main{padding-top:24px}.hero,section{padding:22px}.hero{padding:30px 22px}}