:root{--blue:#315ce9;--ink:#17213b;--muted:#69748c;--line:#dce4f2;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#eef3fb;font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;min-height:100vh;background:radial-gradient(ellipse at 88% 8%,#dfe8ff 0,transparent 44%),radial-gradient(ellipse at 0% 54%,#e5edf9 0,transparent 48%),linear-gradient(160deg,#f3f6fc 0%,#edf2fa 58%,#e7eefb 100%)}a{color:inherit;text-decoration:none}a:focus-visible{outline:3px solid #6c88f4;outline-offset:6px}img{display:block;max-width:100%}.wrap{width:min(1160px,calc(100% - 80px));margin-inline:auto}.header{height:104px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px;font-size:25px;font-weight:750;letter-spacing:1px}.brand-mark{width:42px;height:42px;background:var(--blue);border-radius:13px;color:white;display:grid;place-items:center;position:relative;font-size:25px;transform:rotate(-5deg)}.brand-mark>span{position:absolute;width:8px;height:8px;border:2px solid white;border-radius:50%;background:#9dedbc;right:-2px;top:-2px}.header nav{display:flex;gap:36px;align-items:center;font-size:14px}.header nav>a:hover{color:var(--blue)}.nav-download{padding:12px 20px;background:#f0f4ff;border-radius:9px;color:var(--blue);font-weight:600}.nav-download span{margin-left:20px}.hero{display:grid;grid-template-columns:1.08fr 1fr;align-items:center;min-height:610px;padding:34px 0 66px;gap:30px}.eyebrow{font-size:13px;font-weight:600;letter-spacing:2px;color:var(--blue);display:flex;align-items:center;gap:9px}.eyebrow>span{height:7px;width:7px;background:var(--blue);border-radius:50%}h1{font-size:clamp(38px,4.4vw,59px);line-height:1.38;letter-spacing:-2px;margin:23px 0}.blue{color:var(--blue)}.hero-description{font-size:17px;color:var(--muted);line-height:1.95;margin:0 0 29px}.primary-link{display:inline-flex;align-items:center;gap:44px;background:var(--blue);color:#fff;border-radius:10px;padding:17px 24px;font-size:15px;font-weight:600;box-shadow:0 7px 16px #315ce91c;transition:background .2s,transform .2s}.primary-link:hover{background:#244bcc;transform:translateY(-2px)}.hero-tags{display:flex;gap:16px;align-items:center;margin-top:25px;color:#818b9e;font-size:12px}.hero-tags i{width:3px;height:3px;background:#b6bfd1;border-radius:50%}.hero-visual{height:500px;position:relative;background:#e8eefc;border-radius:46% 46% 24px 24px;isolation:isolate}.mascot{position:absolute;bottom:0;left:50%;transform:translateX(-50%);height:465px;width:349px;object-fit:cover;mix-blend-mode:multiply;border-radius:0 0 24px 24px}.orbit{position:absolute;inset:24px -10px 36px;border:1px solid #e0e7fb;border-radius:50%;transform:rotate(-18deg);z-index:-1}.visual-caption{position:absolute;top:24px;left:50%;transform:translateX(-50%);white-space:nowrap;font-size:11px;letter-spacing:3px;color:#7f8bac}.hello{position:absolute;left:-28px;bottom:34px;display:flex;gap:13px;align-items:center;background:#fffffff5;padding:19px 23px;border:1px solid #fff;border-radius:16px;box-shadow:0 14px 40px #273d7514}.hello-dot{display:grid;place-items:center;width:38px;height:38px;background:#eef2ff;color:var(--blue);border-radius:12px;font-size:24px}.hello strong{font-size:14px;display:block;margin-bottom:6px}.hello div>span{font-size:12px;color:var(--muted)}.visual-star{position:absolute;right:5px;top:115px;color:var(--blue);font-size:47px}.about{border-top:1px solid var(--line);padding:62px 0 72px}.section-heading{text-align:center}.section-heading .eyebrow{justify-content:center}h2{font-size:32px;line-height:1.45;letter-spacing:-.8px;margin:15px 0}.section-heading>p:last-child{font-size:14px;color:var(--muted);line-height:1.8}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:44px;margin-top:43px}.features article{padding:0 28px;border-left:1px solid var(--line)}.features article:first-child{border:0}.feature-icon{width:42px;height:42px;background:#f0f4ff;display:grid;place-items:center;border-radius:12px;color:var(--blue)}.feature-icon svg{width:23px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.features h3{font-size:18px;margin:18px 0 10px}.features p{font-size:14px;color:var(--muted);line-height:1.9;margin:0}.download{background:linear-gradient(120deg,#e1eaff,#eaf0fc);border:1px solid #d7e2f6;border-radius:24px;padding:48px 66px;display:flex;align-items:center;justify-content:space-between;gap:34px;margin-bottom:56px}.download-copy h2{font-size:36px;margin:16px 0}.download-copy>p:last-child{font-size:14px;line-height:1.9;color:var(--muted)}.download-options{display:flex;gap:20px}.download-card{width:200px;padding:21px;background:#f8faff;border-radius:17px;text-align:center;box-shadow:0 8px 25px #273d7505}.qr-placeholder{display:block;width:158px;height:158px;background:#fff;border:1px dashed #d5dceb;border-radius:8px;object-fit:contain}.qr-placeholder.has-qr{border-style:solid;border-color:#e7edf9;padding:10px}.qr-placeholder.has-qr svg{display:block;width:100%;height:100%;fill:initial;stroke:none}.download-card h3{display:flex;align-items:center;justify-content:center;gap:7px;font-size:18px;margin:19px 0 7px}.download-card svg{width:22px;height:22px;fill:currentColor}.download-card p{font-size:12px;color:var(--muted);margin:0}.footer{display:flex;align-items:center;gap:26px;padding:0 0 30px;color:#8790a2;font-size:12px}.footer-brand{font-size:17px;font-weight:700;color:var(--ink)}.footer>span{margin-left:auto}.footer p{margin:0}
@media(min-width:1500px){.hero{padding-top:60px;padding-bottom:80px}}
@media(max-width:1120px){.download{flex-direction:column;gap:26px}.download-copy{text-align:center}.download-copy .eyebrow{justify-content:center}}
@media(max-width:1000px){.wrap{width:calc(100% - 48px)}.hero{gap:16px}.hero-visual{height:455px}.mascot{height:420px;width:315px}.hello{left:-10px;padding:16px}.hero-description{font-size:15px}.features{gap:15px}.features article{padding-inline:18px}.download{padding:38px}.download-options{gap:14px}.download-card{width:178px;padding:17px}.qr-placeholder{width:144px;height:144px}}
@media(max-width:700px){.wrap{width:calc(100% - 40px)}.header{height:82px}.brand{font-size:21px;gap:9px}.brand-mark{height:35px;width:35px;border-radius:10px;font-size:21px}.header nav{gap:0}.header nav>a:first-child{display:none}.nav-download{font-size:12px;padding:10px 13px}.nav-download span{margin-left:10px}.hero{grid-template-columns:1fr;padding:26px 0 42px;gap:37px}.hero-copy{text-align:center}.hero-copy .eyebrow{justify-content:center}h1{font-size:clamp(34px,8.5vw,52px);letter-spacing:-1px;margin:19px 0}.hero-description{font-size:14px;line-height:1.9;margin-bottom:22px}.primary-link{padding:15px 23px}.hero-tags{justify-content:center;margin-top:22px}.hero-visual{height:390px;max-width:400px;width:calc(100% - 18px);margin:auto}.mascot{height:366px;width:275px}.visual-caption{top:18px;font-size:10px;letter-spacing:2px}.hello{left:-9px;bottom:21px;padding:14px 17px}.hello strong{font-size:13px}.hello div>span{font-size:11px}.visual-star{font-size:36px;top:78px;right:5px}.orbit{inset:20px -5px 28px}.about{padding:35px 0 40px}.section-heading h2{font-size:26px}.section-heading>p:last-child{font-size:13px;max-width:280px;margin:0 auto}.features{grid-template-columns:1fr;gap:26px;margin-top:30px}.features article{border:0;position:relative;padding:0 0 0 61px}.feature-icon{position:absolute;left:0;top:0}.features h3{font-size:17px;margin:0 0 7px}.features p{font-size:13px}.features p br{display:none}.download{padding:28px 18px 24px;flex-direction:column;gap:20px;border-radius:20px;margin-bottom:30px}.download-copy{text-align:center}.download-copy .eyebrow{justify-content:center}.download-copy h2{font-size:29px;margin:10px 0}.download-copy h2 br{display:none}.download-copy>p:last-child{font-size:13px;margin:0}.download-copy>p:last-child br{display:none}.download-options{gap:12px;width:100%;justify-content:center;flex-wrap:wrap}.download-card{padding:13px;width:calc(50% - 6px);max-width:190px;border-radius:12px}.qr-placeholder{width:100%;height:auto;aspect-ratio:1}.download-card h3{font-size:16px;margin-top:14px}.download-card p{font-size:11px}.footer{flex-wrap:wrap;gap:12px 18px;padding-bottom:24px}.footer>span{width:100%;margin:0;font-size:11px}.footer p{font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.primary-link{transition:none}}

/* ===== 版本列表（各平台） ===== */
.version-list{list-style:none;display:flex;flex-direction:column;gap:6px;width:fit-content;max-width:100%;margin:26px 0 0;padding:0}
.version-row{display:flex;align-items:center;gap:18px;padding:9px 16px;background:#fff;border:1px solid #dbe3f6;border-radius:12px;box-shadow:0 8px 22px #273d750f;font-size:13px;font-weight:600;color:var(--ink);line-height:1.5}
.version-row-text{min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.version-row-date{flex:none;color:#8fa0c4;font-variant-numeric:tabular-nums;letter-spacing:.5px}
@media(max-width:700px){.version-list{margin:22px auto 0;gap:5px}.version-row{padding:8px 13px;font-size:12px;gap:12px}}