:root{--ink:#17211f;--muted:#68736f;--green:#167a60;--cream:#faf9f5;--line:#e4e8e4}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--cream);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif}button,input{font:inherit}button,a{transition:.2s ease}.nav{height:76px;max-width:1180px;margin:auto;display:flex;align-items:center;padding:0 24px;gap:42px}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-size:20px;font-weight:900;text-decoration:none}.logo{width:34px;height:34px;border-radius:11px;background:var(--ink);color:#fff;display:grid;place-items:center;font-size:13px;transform:rotate(-3deg)}.nav-links{display:flex;gap:30px}.nav-links a{color:var(--muted);font-size:14px;font-weight:600;text-decoration:none}.nav-links a:hover,.nav-links .active{color:var(--ink)}
.hero{min-height:625px;padding:76px 24px 62px;text-align:center;position:relative;overflow:hidden;background:radial-gradient(circle at 50% 18%,#e4f7ef 0,transparent 31%),linear-gradient(180deg,#f7fbf8 0,var(--cream) 86%)}.hero:before,.hero:after{content:"";position:absolute;width:550px;height:550px;top:-100px;left:calc(50% - 610px);border:1px solid #daeae2;border-radius:50%;opacity:.55}.hero:after{left:auto;right:calc(50% - 660px);top:60px}.eyebrow{display:inline-block;padding:7px 12px;border:1px solid #c6e1d6;border-radius:99px;background:#f5fcf9;color:var(--green);font-size:12px;font-weight:700;letter-spacing:.08em}.hero h1{margin:22px 0 18px;font-size:66px;line-height:1.08;letter-spacing:-.045em;font-weight:900}.hero h1 span{color:var(--green);position:relative}.hero h1 span:after{content:"";position:absolute;left:2px;right:2px;bottom:-6px;height:8px;background:#f5ab79;border-radius:50%;opacity:.7}.lead{max-width:670px;margin:auto;color:var(--muted);font-size:17px;line-height:1.8}.query-card{position:relative;z-index:2;max-width:1000px;margin:34px auto 0;padding:10px;background:#fff;border:1px solid #e0e7e2;border-radius:18px;box-shadow:0 20px 55px rgba(44,75,64,.12)}.input-row{display:flex;align-items:center;gap:12px}.search-icon{margin-left:10px;color:#8fa09a;font-size:31px;line-height:1}.input-row input{flex:1;min-width:0;padding:15px 0;border:0;outline:0;background:transparent;font-size:16px}.clear{width:40px;height:40px;border:0;border-radius:50%;background:#f4f5f3;font-size:25px;cursor:pointer}.primary{min-width:195px;padding:20px;border:0;border-radius:16px;background:var(--ink);color:#fff;font-size:18px;font-weight:800;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:13px}.primary:hover{background:var(--green);transform:translateY(-1px)}.primary:disabled{cursor:wait;opacity:.65}.query-meta{display:flex;align-items:center;gap:28px;padding:15px 18px 5px;border-top:1px solid #edf0ed;color:#80908a;font-size:13px}.query-meta b{margin-left:auto;color:var(--green)}.error{display:none;position:relative;z-index:2;max-width:1000px;margin:20px auto 0;padding:18px;color:#b64335;background:#fff0ed;border:1px solid #ffcbc2;border-radius:14px}.error.show{display:block}.results{position:relative;z-index:2;max-width:1000px;margin:18px auto 0;display:grid;gap:12px;text-align:left}.result-card{padding:20px;background:#fff;border:1px solid #dfe7e1;border-radius:17px;box-shadow:0 15px 40px rgba(44,75,64,.08)}.result-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px;font-weight:800}.result-head code{padding:5px 9px;background:#f3f5f3;border-radius:7px;color:#6d7b75}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.stat{display:grid;grid-template-columns:44px 1fr;grid-template-rows:auto auto;column-gap:10px;padding:13px;background:#f7f8f6;border-radius:12px}.stat-icon{grid-row:1/3;width:42px;height:42px;display:grid;place-items:center;border-radius:11px;font-size:19px}.coral{background:#ffe5de;color:#d85240}.pink{background:#ffe5ed;color:#d43e68}.blue{background:#e2edf8;color:#3f73a8}.mint{background:#dff2e9;color:#268064}.stat small{color:#7c8883}.stat strong{font-size:20px}
.trust{max-width:900px;margin:0 auto 85px;padding:24px;display:flex;align-items:center;justify-content:center;gap:65px}.trust div{display:flex;align-items:baseline;gap:10px}.trust strong{font-size:23px}.trust span{color:var(--muted);font-size:13px}.trust i{width:1px;height:28px;background:#dfe3df}.section{max-width:1100px;margin:auto;padding:90px 24px;border-top:1px solid var(--line)}.section-copy{text-align:center}.kicker{color:var(--green);font-size:11px;font-weight:800;letter-spacing:.19em}.section h2{margin:10px 0 12px;font-size:37px;letter-spacing:-.03em}.section-copy p{color:var(--muted)}.steps{display:grid;grid-template-columns:1fr 35px 1fr 35px 1fr;align-items:center;margin-top:55px}.steps article{min-height:235px;padding:26px;position:relative;background:#fff;border:1px solid var(--line);border-radius:16px}.steps em{position:absolute;right:18px;top:12px;color:#e8eeea;font-size:38px;font-style:normal;font-weight:900}.step-icon{width:46px;height:46px;display:grid;place-items:center;background:#d8f4e8;color:var(--green);border-radius:13px;font-size:23px}.steps h3{margin:26px 0 8px}.steps p{margin:0;color:var(--muted);font-size:14px;line-height:1.8}.step-arrow{justify-self:center;color:#aab5b0;font-size:32px}.faq{display:grid;grid-template-columns:300px 1fr;gap:70px}.faq-title{display:flex;gap:16px;align-items:flex-start}.faq-icon{width:48px;height:48px;display:grid;place-items:center;background:#ffe4dd;color:#d85240;border-radius:14px;font-size:23px;font-weight:900}.faq-title h2{margin-top:5px}.faq-grid{border-top:1px solid #daddd9}.faq-grid details{padding:18px 3px;border-bottom:1px solid #daddd9}.faq-grid summary{list-style:none;display:flex;justify-content:space-between;font-weight:700;cursor:pointer}.faq-grid details[open] summary span{transform:rotate(90deg)}.faq-grid p{margin:13px 35px 2px 0;color:var(--muted);font-size:14px;line-height:1.8}footer{height:105px;max-width:1100px;margin:auto;padding:0 24px;display:flex;align-items:center;gap:25px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}footer .brand{font-size:17px}footer .logo{width:29px;height:29px}footer>span:last-child{margin-left:auto}
@media(max-width:760px){.nav{height:66px}.nav-links{display:none}.hero{padding-top:55px}.hero h1{font-size:44px}.lead{font-size:15px}.input-row{flex-wrap:wrap}.search-icon{display:none}.input-row input{width:calc(100% - 50px);padding:14px 7px}.primary{width:100%;min-width:0;padding:15px}.query-meta{flex-wrap:wrap;gap:8px 15px}.query-meta b{width:100%;margin:0}.stats{grid-template-columns:1fr 1fr}.trust{gap:20px;margin-bottom:35px}.trust div{display:block}.trust strong,.trust span{display:block}.trust i{height:40px}.section{padding:65px 20px}.section h2{font-size:31px}.steps{grid-template-columns:1fr;gap:15px}.step-arrow{display:none}.faq{grid-template-columns:1fr;gap:35px}footer{height:auto;padding:30px 20px;flex-wrap:wrap}footer>span:last-child{width:100%;margin:0}}