:root{--ink:#172033;--muted:#667085;--blue:#1768e5;--blue2:#0b4fc0;--line:#dce3ec;--panel:rgba(255,255,255,.82);--bg:#f4f7fb;--shadow:0 20px 60px rgba(35,55,80,.12);--radius:22px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font:16px/1.7 -apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","Microsoft YaHei",sans-serif;background:radial-gradient(circle at 15% 0,#e7f0ff 0,transparent 35%),var(--bg)}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto}.container{width:min(1160px,calc(100% - 40px));margin:auto}.site-header{position:sticky;top:0;z-index:10;border-bottom:1px solid rgba(220,227,236,.75);background:rgba(247,249,252,.82);backdrop-filter:blur(18px)}.nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:11px;font-weight:750}.brand img{width:38px;height:38px}.nav-links{display:flex;align-items:center;gap:25px;font-size:14px}.nav-links a:hover,.nav-links a[aria-current=page]{color:var(--blue)}.menu{display:none;border:0;background:#fff;border-radius:10px;padding:8px 11px;font-size:20px}.hero{padding:84px 0 60px}.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:60px}.eyebrow{display:inline-flex;gap:8px;align-items:center;padding:7px 12px;border:1px solid #cbdcff;border-radius:999px;background:#f8fbff;color:#245ca7;font-size:13px}.hero h1{margin:20px 0 18px;font-size:clamp(40px,5vw,66px);line-height:1.08;letter-spacing:-2px}.lead{max-width:650px;color:var(--muted);font-size:18px}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}.btn{display:inline-flex;justify-content:center;align-items:center;min-height:48px;padding:0 21px;border-radius:13px;font-weight:680}.btn.primary{color:#fff;background:linear-gradient(135deg,var(--blue),var(--blue2));box-shadow:0 10px 26px rgba(23,104,229,.24)}.btn.secondary{border:1px solid var(--line);background:#fff}.metrics{display:flex;gap:32px;margin-top:34px}.metric strong{display:block;font-size:23px}.metric span{color:var(--muted);font-size:13px}.window{overflow:hidden;border:1px solid rgba(255,255,255,.9);border-radius:26px;background:var(--panel);box-shadow:var(--shadow)}.window-bar{display:flex;gap:8px;padding:14px 17px;border-bottom:1px solid var(--line)}.dot{width:11px;height:11px;border-radius:50%;background:#ff5f57}.dot:nth-child(2){background:#febc2e}.dot:nth-child(3){background:#28c840}.window img{display:block;width:880px;aspect-ratio:880/700;object-fit:cover}.section{padding:78px 0}.section.alt{background:rgba(255,255,255,.58);border-block:1px solid rgba(220,227,236,.75)}.section-head{max-width:720px;margin-bottom:34px}.section-head h2,.page-hero h1{margin:0 0 12px;font-size:clamp(30px,4vw,46px);line-height:1.2}.section-head p,.page-hero p{margin:0;color:var(--muted)}.grid{display:grid;gap:18px}.grid.four{grid-template-columns:repeat(4,1fr)}.grid.three{grid-template-columns:repeat(3,1fr)}.grid.two{grid-template-columns:repeat(2,1fr)}.card{padding:26px;border:1px solid rgba(216,225,237,.9);border-radius:var(--radius);background:var(--panel);box-shadow:0 8px 30px rgba(35,55,80,.06)}.card h3{margin:10px 0 8px}.card p{margin:0;color:var(--muted)}.icon{display:grid;place-items:center;width:44px;height:44px;border-radius:13px;background:#eaf2ff;color:var(--blue);font-weight:800}.link-card{transition:.2s transform,.2s box-shadow}.link-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center;margin-top:40px}.feature-row:nth-child(even) .feature-copy{order:2}.mock{min-height:240px;padding:28px;border:1px solid var(--line);border-radius:26px;background:linear-gradient(145deg,#fff,#edf3fb);box-shadow:var(--shadow)}.code{font:13px/1.8 ui-monospace,SFMono-Regular,Consolas,monospace;color:#315071}.tag{display:inline-block;margin:4px 4px 0 0;padding:5px 9px;border-radius:8px;background:#edf4ff;color:#2765bd;font-size:12px}.page-hero{padding:72px 0 42px;text-align:center}.page-hero .eyebrow{margin-bottom:18px}.notice{padding:18px 20px;border-left:4px solid var(--blue);border-radius:12px;background:#eaf3ff;color:#294c78}.steps{counter-reset:step}.step{position:relative;padding:0 0 34px 58px}.step:before{counter-increment:step;content:counter(step);position:absolute;left:0;top:0;display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:#172033;color:#fff;font-weight:800}.step:not(:last-child):after{content:"";position:absolute;left:18px;top:44px;bottom:6px;width:1px;background:var(--line)}.step h3{margin:0 0 5px}.step p{margin:0;color:var(--muted)}details{padding:18px 0;border-bottom:1px solid var(--line)}summary{cursor:pointer;font-weight:700}details p{color:var(--muted)}.cta{padding:40px;border-radius:30px;background:linear-gradient(120deg,#14233c,#234d88);color:#fff}.cta p{color:#cbd8ea}.site-footer{padding:56px 0 28px;background:#111a29;color:#d8e0ec}.footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:34px}.site-footer h3,.site-footer h4{color:#fff}.site-footer a{display:block;margin:8px 0;color:#b9c5d5}.copyright{margin-top:34px;padding-top:20px;border-top:1px solid #2b3545;color:#93a2b7;font-size:13px}.chips{display:flex;flex-wrap:wrap;gap:10px}.chip{padding:8px 12px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:13px}.download-card{position:relative}.recommended{position:absolute;right:18px;top:18px;padding:4px 9px;border-radius:99px;background:#e6f5ec;color:#217847;font-size:12px;font-weight:700}.checklist{padding:0;list-style:none}.checklist li{margin:9px 0;color:var(--muted)}.checklist li:before{content:"✓";margin-right:9px;color:#1d9b57;font-weight:800}@media(max-width:900px){.hero-grid,.feature-row{grid-template-columns:1fr}.hero{padding-top:55px}.grid.four{grid-template-columns:repeat(2,1fr)}.grid.three{grid-template-columns:1fr 1fr}.feature-row:nth-child(even) .feature-copy{order:0}.footer-grid{grid-template-columns:1fr 1fr}}@media(max-width:680px){.container{width:min(100% - 28px,1160px)}.nav-links{display:none;position:absolute;top:72px;left:14px;right:14px;flex-direction:column;align-items:stretch;padding:18px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--shadow)}.nav-links.open{display:flex}.menu{display:block}.hero h1{letter-spacing:-1px}.metrics{gap:18px}.grid.four,.grid.three,.grid.two,.footer-grid{grid-template-columns:1fr}.section{padding:56px 0}.window{border-radius:18px}.cta{padding:27px}}
