:root{--ink:#17312a;--green:#176b4d;--green2:#23936b;--mint:#eaf7f1;--gold:#d8902f;--paper:#fff;--soft:#f5f8f6;--line:#dce8e2;--muted:#5c7169;--shadow:0 18px 50px rgba(20,73,55,.10)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);line-height:1.75;background:var(--paper)}a{color:inherit}.wrap{width:min(1160px,calc(100% - 40px));margin:auto}.top{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;min-height:70px;gap:24px}.brand{font-weight:800;color:var(--green);text-decoration:none;font-size:20px}.navlinks{display:flex;gap:22px;align-items:center}.navlinks a{text-decoration:none;color:#355149;font-size:14px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:11px 20px;border-radius:9px;background:var(--green);color:#fff;text-decoration:none;font-weight:700}.btn.alt{background:#fff;color:var(--green);border:1px solid var(--green)}.hero{padding:86px 0 72px;background:radial-gradient(circle at 80% 20%,#d9f4e9 0,transparent 35%),linear-gradient(135deg,#f7fbf9,#edf7f2)}.crumb{font-size:14px;color:var(--muted);margin-bottom:18px}.hero-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:54px;align-items:center}.eyebrow{font-weight:800;color:var(--green2);letter-spacing:.08em}.hero h1{font-size:clamp(36px,5vw,58px);line-height:1.16;margin:12px 0 20px}.lead{font-size:19px;color:#47635a;max-width:760px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.hero-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow)}.hero-card strong{display:block;font-size:18px;margin-bottom:12px}.hero-card ul{padding-left:20px;margin:0}.trust{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}.trust-grid{display:grid;grid-template-columns:repeat(4,1fr)}.trust-grid div{padding:22px;text-align:center;border-right:1px solid var(--line);font-weight:700}.trust-grid div:last-child{border:0}.section{padding:76px 0}.section.soft{background:var(--soft)}.section h2{font-size:34px;line-height:1.25;margin:0 0 14px}.section-intro{color:var(--muted);max-width:760px;margin:0 0 34px}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.card{border:1px solid var(--line);border-radius:16px;padding:26px;background:#fff}.card h3{margin:0 0 10px;font-size:20px}.card p{margin:0;color:var(--muted)}.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.step{position:relative;padding:58px 22px 24px;border-radius:15px;background:#fff;border:1px solid var(--line)}.step:before{counter-increment:step;content:counter(step);position:absolute;top:18px;left:22px;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--green);color:#fff;font-weight:800}.step h3{margin:0 0 8px}.step p{margin:0;color:var(--muted);font-size:14px}.content{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:start}.checklist{list-style:none;padding:0;margin:0}.checklist li{position:relative;padding:10px 0 10px 30px;border-bottom:1px dashed var(--line)}.checklist li:before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:900}.faq details{border-bottom:1px solid var(--line);padding:18px 0}.faq summary{cursor:pointer;font-weight:800}.faq p{color:var(--muted)}.cta{padding:54px 0;background:var(--ink);color:#fff}.cta-grid{display:flex;justify-content:space-between;align-items:center;gap:28px}.cta h2{margin:0 0 8px;font-size:32px}.cta p{margin:0;color:#c9d8d2}.cta .btn{background:#fff;color:var(--ink)}footer{padding:34px 0;background:#0f241e;color:#c9d8d2;font-size:14px}.foot{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}.foot a{color:#fff}.tag{display:inline-block;padding:5px 10px;border-radius:99px;background:var(--mint);color:var(--green);font-size:13px;font-weight:700;margin:3px}.note{padding:18px 20px;border-left:4px solid var(--gold);background:#fff8ec;color:#715020;border-radius:8px}.related{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}.related a{padding:8px 12px;border:1px solid var(--line);border-radius:8px;text-decoration:none;color:var(--green)}
@media(max-width:800px){.navlinks{display:none}.hero{padding:58px 0}.hero-grid,.content{grid-template-columns:1fr}.trust-grid{grid-template-columns:1fr 1fr}.trust-grid div:nth-child(2){border-right:0}.grid3,.steps{grid-template-columns:1fr}.cta-grid{align-items:flex-start;flex-direction:column}.section{padding:54px 0}}