:root{--ink:#17231d;--sub:#66716b;--green:#0f5d46;--soft:#eaf3ee;--line:#dbe4df;--bg:#f6f7f4;--amber:#b4711a}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}a{text-decoration:none;color:inherit}.wrap{max-width:1080px;margin:auto;padding:0 24px}nav{height:64px;background:#ffffffdc;backdrop-filter:blur(18px);position:sticky;top:0;z-index:10;border-bottom:1px solid #0000000c}.nav{height:100%;display:flex;align-items:center;gap:22px}.brand{font-weight:800}.brand i{display:inline-grid;width:26px;height:26px;margin-right:8px;place-items:center;background:var(--green);color:#fff;border-radius:8px;font-style:normal}.nav .spacer{flex:1}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 18px;border-radius:9px;background:var(--green);color:#fff;font-weight:700}.hero{padding:74px 0 48px;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}.chip{display:inline-block;padding:5px 11px;border-radius:999px;background:var(--soft);color:var(--green);font-size:12px;font-weight:700}.hero h1{font-size:46px;line-height:1.15;letter-spacing:-1.5px;margin:16px 0}.hero p{font-size:17px;color:var(--sub)}.hero-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:0 18px 55px #173d2b12}.mini{padding:13px;border-radius:11px;background:#f7faf8;margin:8px 0}.mini b{display:block}.mini span{font-size:12px;color:var(--sub)}section{padding:50px 0}h2{font-size:30px;margin:0 0 12px}.lead{color:var(--sub);max-width:720px}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-top:24px}.card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:22px}.card h3{margin:0 0 7px}.card p{margin:0;color:var(--sub)}.compare{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:22px}.sample{background:#fff;border:1px solid var(--line);border-radius:15px;padding:22px}.sample.before{opacity:.75}.label{font-size:11px;font-weight:800;color:var(--amber);margin-bottom:10px}.sample.after .label{color:var(--green)}.notice{padding:13px 15px;background:#fff8e8;border:1px solid #ecd59b;border-radius:10px;color:#735018;font-size:12px;margin-top:14px}.cta{margin:48px auto;background:#173329;color:#fff;padding:38px;border-radius:22px;text-align:center}.cta p{color:#c8d8d0}.links{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}.links a{padding:8px 12px;background:#ffffff12;border-radius:8px}footer{padding:30px 0;color:#8a948e;text-align:center;border-top:1px solid var(--line);font-size:12px}@media(max-width:760px){.hero{grid-template-columns:1fr;padding-top:48px}.hero h1{font-size:36px}.grid3,.compare{grid-template-columns:1fr}.nav a:not(.brand):not(.btn){display:none}}