:root{color-scheme:light;font-family:Inter,"Microsoft YaHei","PingFang SC",sans-serif;color:#152344;background:#f8faff;font-synthesis:none}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0}
a{color:inherit}
.shell{width:min(1160px,calc(100% - 48px));margin-inline:auto}
.topbar{border-bottom:1px solid #e8edf7;background:#fff}
.topbar-inner{height:80px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:11px;font-size:20px;font-weight:750;letter-spacing:.02em}
.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:11px;background:#316ef4;color:#fff;font-size:20px;box-shadow:0 8px 18px #316ef42b}
.nav-link{text-decoration:none;color:#42516e;font-size:14px;font-weight:650}
.nav-link:hover,.nav-link:focus-visible{color:#316ef4}
.hero{min-height:630px;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:58px;padding-block:78px 94px}
.eyebrow{display:inline-block;color:#316ef4;font-size:13px;font-weight:750;letter-spacing:.08em}
h1{font-size:clamp(42px,5vw,66px);letter-spacing:-.045em;line-height:1.19;margin:22px 0 23px}
h1 span{color:#316ef4}
.hero-copy p,.download-inner p{color:#677590;font-size:17px;line-height:1.9;margin:0;max-width:480px}
.primary-link{display:inline-flex;gap:18px;align-items:center;margin-top:36px;padding:14px 22px;border-radius:12px;background:#316ef4;color:#fff;text-decoration:none;font-weight:700;box-shadow:0 10px 24px #316ef437}
.primary-link:hover,.primary-link:focus-visible{background:#245edc}
.canvas-preview{position:relative;height:430px;border:1px solid #dae3f5;border-radius:22px;background:#fff;overflow:hidden;box-shadow:0 32px 70px #20365b20;transform:rotate(2deg)}
.preview-top{height:44px;display:flex;gap:6px;align-items:center;padding:0 16px;border-bottom:1px solid #e9edf5;background:#fbfcff}
.preview-top span{width:8px;height:8px;border-radius:50%;background:#dbe3f1}
.preview-top strong{margin-left:12px;font-size:11px;color:#8c9ab2;font-weight:650}
.preview-grid{position:absolute;inset:44px 0 0;background-image:radial-gradient(#dfe6f2 1px,transparent 1px);background-size:20px 20px}
.preview-note{position:absolute;z-index:1;display:flex;flex-direction:column;gap:8px;padding:18px 20px;background:#fff;border:1px solid #e5eaf4;border-radius:14px;box-shadow:0 12px 28px #20365b14}
.note-one{left:8%;top:20%;transform:rotate(-5deg)}
.note-two{right:5%;bottom:12%;transform:rotate(4deg)}
.note-label{color:#316ef4;font-size:11px;font-weight:750}
.preview-note strong{font-size:14px}
.preview-note small{font-size:11px;color:#8896af}
.preview-card{position:absolute;left:30%;top:34%;width:41%;height:43%;border:7px solid #fff;border-radius:15px;background:linear-gradient(140deg,#acd8f7,#e0ecff 65%,#f8e3d2);box-shadow:0 14px 30px #20365b2a;transform:rotate(7deg);overflow:hidden}
.preview-sun{position:absolute;width:38px;height:38px;right:16%;top:16%;border-radius:50%;background:#fff2bb}
.preview-hill{position:absolute;inset:47% -12% -27%;border-radius:50% 50% 0 0;background:#99c8ae;transform:rotate(-16deg)}
.download-wrap{background:#edf3ff;border-top:1px solid #e2eaf9;border-bottom:1px solid #e2eaf9}
.download-inner{min-height:240px;display:flex;align-items:center;justify-content:space-between;gap:32px;padding-block:45px}
h2{font-size:30px;letter-spacing:-.03em;margin:12px 0}
.download-inner p{font-size:15px}
.download-status{display:inline-block;white-space:nowrap;border-radius:10px;border:1px solid #cdd9ef;padding:13px 18px;color:#62718d;background:#fff;font-size:14px;font-weight:700}
.footer{min-height:88px;display:flex;justify-content:space-between;align-items:center;gap:16px;color:#8a97ad;font-size:13px}
@media(max-width:820px){.hero{grid-template-columns:1fr;gap:44px;padding-block:58px 70px}.canvas-preview{height:360px;max-width:560px;width:100%;margin:auto}.download-inner{align-items:flex-start;flex-direction:column;gap:24px}}
@media(max-width:520px){.shell{width:min(100% - 32px,1160px)}.topbar-inner{height:68px}.hero{padding-block:50px 60px}.hero-copy p{font-size:15px}.canvas-preview{height:290px}.preview-note{padding:12px;gap:5px}.preview-note strong{font-size:11px}.preview-note small{font-size:9px}.preview-card{border-width:5px}.download-inner{min-height:0}.footer{justify-content:flex-start;flex-direction:column;align-items:flex-start;padding-block:24px;min-height:0}}