:root{--ink:#102a32;--muted:#65777e;--teal:#238b82;--teal-dark:#12665f;--mint:#e8f6f3;--paper:#f5f8f8;--line:#dce9e6;--orange:#ef9b4f;--shadow:0 18px 50px rgba(16,42,50,.09)}.breadcrumb{color:var(--muted);font-size:13px;margin-bottom:24px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}a{color:inherit;text-decoration:none}.wrap{width:min(1160px,calc(100% - 40px));margin:auto}.site-header{position:sticky;top:0;z-index:20;background:rgba(245,248,248,.9);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.nav{height:76px;display:flex;align-items:center;gap:34px}.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:20px}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;color:white;background:linear-gradient(135deg,#176e67,#34b49c);box-shadow:0 8px 20px rgba(35,139,130,.3)}.nav-links{display:flex;gap:26px;color:var(--muted);font-size:14px}.nav-links a:hover{color:var(--teal)}.nav-cta{margin-left:auto;padding:10px 17px;border-radius:999px;background:var(--teal);color:white;font-size:14px;font-weight:700}.hero{padding:84px 0 70px;background:radial-gradient(circle at 86% 12%,#d9f3ed,transparent 28%),linear-gradient(180deg,#f5f8f8,#edf7f5)}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:62px;align-items:center}.eyebrow{display:inline-flex;padding:5px 12px;border-radius:999px;background:var(--mint);color:var(--teal);font-size:13px;font-weight:700}.hero h1{margin:18px 0 14px;font-size:clamp(38px,5vw,66px);line-height:1.12;letter-spacing:-2px}.hero p{max-width:650px;color:var(--muted);font-size:18px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border-radius:12px;border:1px solid var(--line);font-weight:700;font-size:14px;cursor:pointer}.btn-primary{background:var(--teal);border-color:var(--teal);color:white}.btn-secondary{background:white}.hero-card{padding:24px;border:1px solid #cfe5df;border-radius:24px;background:rgba(255,255,255,.75);box-shadow:var(--shadow);transform:rotate(1.2deg)}.mini-window{background:#fff;border-radius:17px;padding:20px}.mini-top{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}.mini-result{margin:22px 0;padding:22px;border-radius:15px;background:linear-gradient(135deg,#123f45,#238b82);color:white}.mini-result strong{display:block;font-size:34px}.mini-bars i{display:block;height:10px;margin:12px 0;border-radius:20px;background:#dcefea}.mini-bars i:nth-child(1){width:90%;background:#55b8a3}.mini-bars i:nth-child(2){width:68%;background:#f0b06d}.section{padding:78px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:28px}.section h2{margin:0;font-size:34px;line-height:1.25}.section-intro{max-width:660px;color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{padding:24px;border:1px solid var(--line);border-radius:18px;background:white;box-shadow:0 8px 26px rgba(16,42,50,.04)}.card h3{margin:12px 0 6px;font-size:20px}.card p{margin:0;color:var(--muted);font-size:14px}.icon{display:grid;place-items:center;width:45px;height:45px;border-radius:14px;background:var(--mint);color:var(--teal);font-size:21px}.band{padding:48px 0;background:#123f45;color:white}.band-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}.band p{color:#c5dfda}.tool-page{padding:58px 0}..breadcrumb{color:var(--muted);font-size:13px;margin-bottom:24px}.tool-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}.tool-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.16;margin:10px 0}.tool-hero p{color:var(--muted);font-size:17px}.tool-panel{padding:26px;border-radius:22px;background:white;border:1px solid var(--line);box-shadow:var(--shadow)}.tool-panel .row{display:flex;justify-content:space-between;padding:13px 0;border-bottom:1px solid var(--line);color:var(--muted)}.tool-panel .row strong{color:var(--ink)}.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.feature-list .card{box-shadow:none}.faq details{padding:18px 0;border-bottom:1px solid var(--line)}.faq summary{cursor:pointer;font-weight:700}.site-footer{padding:45px 0;background:#0c282d;color:#b9d3cf}.footer-grid{display:flex;justify-content:space-between;gap:30px}.footer-brand{color:white;font-weight:800}.footer-links{display:flex;gap:20px;font-size:14px}.modal{position:fixed;inset:0;z-index:50;display:none;place-items:center;padding:20px;background:rgba(5,24,27,.62)}.modal.open{display:grid}.modal-box{width:min(360px,100%);padding:28px;border-radius:24px;background:white;text-align:center}.qr{width:210px;height:210px;object-fit:cover;margin:18px auto;border-radius:14px;background:#edf3f2}.modal-close{border:0;background:#eff5f4;color:var(--teal);padding:10px 22px;border-radius:999px;cursor:pointer}@media(max-width:760px){.wrap{width:min(100% - 28px,600px)}.nav{height:64px}.nav-links{display:none}.hero{padding:54px 0}.hero-grid,.tool-hero,.band-grid{grid-template-columns:1fr;gap:28px}.hero-card{transform:none}.grid{grid-template-columns:1fr}.section{padding:54px 0}.section h2{font-size:28px}.section-head{display:block}.section-intro{margin-top:10px}.feature-list{grid-template-columns:1fr}.footer-grid{display:block}.footer-links{margin-top:18px;flex-wrap:wrap}.nav-cta{padding:8px 12px;font-size:12px}.hero p{font-size:16px}}