.lp-root{--lp-bg: #ffffff;--lp-elevated: #ffffff;--lp-surface: #f5f6f8;--lp-fg: #1a1a1a;--lp-muted: #667085;--lp-line: rgba(15, 23, 42, .06);--lp-line-strong: #e4e7ec;--lp-accent: #f14c4c;--lp-accent-dark: #dc2626;--lp-header-h: 68px;--lp-max: 75%;--lp-font-display: "Avenir Next Condensed", "DIN Alternate", "PingFang SC", "Helvetica Neue", sans-serif;--lp-font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif;--lp-radius: 20px;position:relative;min-height:100vh;color:var(--lp-fg);background:var(--lp-bg);font-family:var(--lp-font-body);line-height:1.6;-webkit-font-smoothing:antialiased}.lp-bg{position:fixed;top:0;right:0;bottom:0;left:0;background-color:var(--lp-bg);background-image:linear-gradient(rgba(15,23,42,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(15,23,42,.04) 1px,transparent 1px);background-size:48px 48px;pointer-events:none;z-index:0}.lp-header{position:fixed;inset:0 0 auto;z-index:100;height:var(--lp-header-h);background:var(--lp-elevated);border-bottom:1px solid var(--lp-line-strong);transition:box-shadow .25s ease}.lp-header.is-scrolled{box-shadow:0 1px 12px #0f172a14}.lp-header-inner{max-width:var(--lp-max);width:var(--lp-max);margin:0 auto;height:100%;padding:0 20px;box-sizing:border-box;display:flex;align-items:center;justify-content:space-between;gap:16px}.lp-brand{display:inline-flex;align-items:center;gap:10px;color:inherit;text-decoration:none;min-width:0;flex:1}.lp-brand-mark{width:32px;height:32px;border-radius:8px;object-fit:cover;flex-shrink:0;box-shadow:0 0 18px #dc262659}.lp-brand-name{font-family:Avenir Next Condensed,DIN Alternate,Arial Narrow,PingFang SC,sans-serif;font-weight:600;font-size:1.35rem;letter-spacing:.04em;line-height:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.lp-header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}.lp-nav-link{height:38px;padding:0 14px;display:inline-flex;align-items:center;border-radius:999px;color:var(--lp-muted);font:inherit;font-size:.92rem;font-weight:600;text-decoration:none;white-space:nowrap;transition:color .2s ease,background .2s ease}.lp-nav-link:hover{color:var(--lp-fg);background:var(--lp-surface)}.lp-nav-link.is-active{color:var(--lp-accent-dark);background:#f14c4c14}.lp-login-btn{display:inline-flex;align-items:center;justify-content:center;height:38px;padding:0 18px;border-radius:999px;border:0;background:linear-gradient(135deg,var(--lp-accent),var(--lp-accent-dark));color:#fff;font:inherit;font-size:.92rem;font-weight:650;text-decoration:none;cursor:pointer;white-space:nowrap;flex-shrink:0;box-sizing:border-box}.lp-login-btn:hover{filter:brightness(1.06);color:#fff}.lp-main{position:relative;z-index:1;padding-top:var(--lp-header-h)}.lp-container{max-width:var(--lp-max);width:var(--lp-max);margin:0 auto;padding:0 20px;box-sizing:border-box}.lp-slogan{max-width:var(--lp-max);width:var(--lp-max);margin:48px auto 32px;padding:0 20px;box-sizing:border-box;text-align:center;font-family:Heiti SC,STHeiti,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:clamp(2.8rem,9vw,6.5rem);font-weight:800;letter-spacing:-.03em;line-height:1.1;color:var(--lp-fg)}.lp-section{padding:48px 0}.lp-hero{padding-top:0;padding-bottom:32px}.lp-hero-grid{display:block}.lp-hero-panel{border-radius:28px;border:1px solid var(--lp-line-strong);background:var(--lp-surface);box-shadow:0 16px 40px #0f172a1a;padding:48px 32px;text-align:center}.lp-hero-panel img{width:96px;height:96px;border-radius:22px;margin:0 auto 18px;display:block;box-shadow:0 0 28px #f14c4c47}.lp-hero-panel-title{margin:0;font-family:var(--lp-font-display);font-size:1.6rem;font-weight:800}.lp-hero-panel-sub{margin:8px 0 22px;color:var(--lp-muted);font-size:.98rem}.lp-hero-chips{display:flex;flex-wrap:wrap;justify-content:center;gap:8px}.lp-hero-chips span{padding:6px 12px;border-radius:999px;border:1px solid var(--lp-line-strong);background:#0f172a08;font-size:.82rem;color:var(--lp-muted)}.lp-hero-copy{text-align:center}.lp-eyebrow{display:block;margin:0 0 16px;font-size:1.7rem;font-weight:600;letter-spacing:.06em;color:var(--lp-accent);text-align:center}.lp-hero-points{margin:0;font-size:2.4rem;line-height:1.45;font-weight:600;font-family:var(--lp-font-body);text-align:center}.lp-hero-point{display:flex;align-items:flex-start;justify-content:center;gap:12px;margin-bottom:16px;text-align:center}.lp-hero-point:before{content:"";width:12px;height:12px;margin-top:.55em;border-radius:50%;background:var(--lp-accent);flex-shrink:0}.lp-grad{background:linear-gradient(120deg,#e5e5e5 10%,var(--lp-accent) 55%,var(--lp-accent-dark) 90%);-webkit-background-clip:text;background-clip:text;color:transparent}.lp-os-row{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:12px}.lp-os-tile{min-width:0;padding:18px 10px 14px;display:flex;flex-direction:column;align-items:center;gap:10px;border-radius:19px;border:1px solid var(--lp-line-strong);background:var(--lp-surface);color:inherit;text-decoration:none;transition:transform .25s ease,border-color .25s ease,background .25s ease;box-sizing:border-box}.lp-os-tile.is-available{border:2px solid #22c55e}.lp-os-tile:hover{transform:translateY(-6px);border-color:#f14c4c73;background:#fff}.lp-os-tile.is-available:hover{border-color:#16a34a;background:var(--lp-surface)}.lp-os-tile span{font-weight:600;font-size:.88rem;text-align:center;line-height:1.25;color:var(--lp-muted)}.lp-os-tile:hover span{color:var(--lp-fg)}.lp-os-tile.is-disabled{opacity:.48;filter:grayscale(1);pointer-events:none;cursor:not-allowed}.lp-os-tile.is-disabled:hover{transform:none;border-color:var(--lp-line-strong);background:var(--lp-surface)}.lp-os-tile.is-disabled span{color:#98a2b3}.lp-os-tile.is-pending{opacity:.6;cursor:progress}.lp-os-tile.is-pending:hover{transform:none;border-color:var(--lp-line-strong);background:var(--lp-surface)}.lp-os-tile.is-loading .lp-os-icon{animation:lp-tile-pulse 1.2s ease-in-out infinite}.lp-os-tile.is-failed{opacity:.6;cursor:pointer}.lp-os-tile.is-failed:hover{border-color:#f14c4c73}@keyframes lp-tile-pulse{0%,to{opacity:1}50%{opacity:.35}}.lp-os-icon{width:48px;height:48px;display:block;flex-shrink:0}.lp-os-icon-img{object-fit:cover;border-radius:12px}.lp-os-tile.has-qr{position:relative;z-index:1;overflow:visible}.lp-os-qr-pop{position:absolute;left:50%;bottom:calc(100% + 14px);width:200px;padding:14px 14px 10px;box-sizing:border-box;display:flex;flex-direction:column;align-items:center;gap:8px;border-radius:16px;border:1px solid var(--lp-line-strong);background:#fff;box-shadow:0 16px 40px #0f172a29;opacity:0;visibility:hidden;pointer-events:none;transform:translate(-50%) translateY(10px) scale(.92);transition:opacity .22s ease,transform .22s ease,visibility .22s ease;z-index:30}.lp-os-qr-pop:after{content:"";position:absolute;left:50%;bottom:-6px;width:12px;height:12px;background:#fff;border-right:1px solid var(--lp-line-strong);border-bottom:1px solid var(--lp-line-strong);transform:translate(-50%) rotate(45deg)}.lp-os-qr-pop img{width:172px;height:172px;display:block;border-radius:10px;object-fit:cover}.lp-os-qr-pop em{font-style:normal;font-size:.78rem;font-weight:600;color:var(--lp-muted);letter-spacing:.02em}.lp-os-tile.has-qr:hover,.lp-os-tile.has-qr:focus-within{z-index:40;transform:translateY(-6px)}.lp-os-tile.has-qr:hover .lp-os-qr-pop,.lp-os-tile.has-qr:focus-within .lp-os-qr-pop,.lp-os-tile.has-qr.is-qr-open .lp-os-qr-pop{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%) translateY(0) scale(1)}.lp-os-tile.has-qr.is-qr-open{z-index:40;transform:translateY(-6px)}.lp-btn{display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 20px;border-radius:12px;font:inherit;font-size:.95rem;font-weight:650;text-decoration:none;cursor:pointer;border:1px solid transparent}.lp-btn-primary{background:linear-gradient(135deg,var(--lp-accent),var(--lp-accent-dark));color:#fff;border:0}.lp-btn-primary:hover{filter:brightness(1.06)}.lp-btn-ghost{background:transparent;border-color:var(--lp-line-strong);color:var(--lp-fg)}.lp-btn-ghost:hover{background:#0f172a0a}.lp-section-head{text-align:center;max-width:720px;margin:0 auto 28px}.lp-section-head h2{margin:0;font-family:var(--lp-font-display);font-size:clamp(1.8rem,4vw,2.8rem);font-weight:800;letter-spacing:-.03em;line-height:1.15}.lp-section-desc{margin:10px 0 0;color:var(--lp-muted);font-size:1.05rem}.lp-card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.lp-card{padding:22px 20px;border-radius:var(--lp-radius);border:1px solid var(--lp-line-strong);background:var(--lp-elevated);box-shadow:0 4px 16px #0f172a0a}.lp-card h3{margin:0 0 12px;font-size:1.15rem;font-weight:700}.lp-card ul{margin:0;padding-left:1.1em;color:var(--lp-muted);font-size:.95rem}.lp-card li{margin-bottom:6px}.lp-split{display:grid;grid-template-columns:1fr 1fr;gap:20px}.lp-split-copy{padding:24px;border-radius:var(--lp-radius);border:1px solid var(--lp-line-strong);background:var(--lp-elevated)}.lp-split-copy h3{margin:0 0 14px;font-size:1.2rem}.lp-check{margin:0;padding:0;list-style:none}.lp-check li{position:relative;padding-left:1.4em;margin-bottom:10px;color:var(--lp-muted)}.lp-check li:before{content:"✓";position:absolute;left:0;color:var(--lp-accent);font-weight:700}.lp-start{text-align:center;padding:40px 24px;border-radius:var(--lp-radius);border:1px solid var(--lp-line-strong);background:linear-gradient(160deg,#f8fafc,#fff5f5 70%)}.lp-start h2{margin:0;font-family:var(--lp-font-display);font-size:2rem;font-weight:800}.lp-start p{margin:10px 0 22px;color:var(--lp-muted)}.lp-gallery-section{padding-left:0;padding-right:0}.lp-gallery{display:flex;flex-direction:column;align-items:center;width:100%;margin:0;padding:0;gap:48px}.lp-gallery-card{margin:0;border-radius:0;overflow:visible;border:0;background:transparent;box-shadow:none;width:auto;max-width:var(--lp-max)}.lp-gallery-card img{display:block;width:auto;max-width:100%;height:auto;object-fit:contain}.lp-footer{position:relative;z-index:1;margin-top:24px;border-top:1px solid var(--lp-line-strong);background:var(--lp-elevated);color:var(--lp-muted);padding:48px 20px}.lp-footer-inner{max-width:var(--lp-max);width:var(--lp-max);margin:0 auto;box-sizing:border-box}.lp-footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}.lp-footer h3{margin:0 0 16px;font-size:1.1rem;font-weight:700;color:var(--lp-fg);letter-spacing:-.01em}.lp-footer ul{list-style:none;margin:0;padding:0}.lp-footer li+li{margin-top:8px}.lp-footer a{color:var(--lp-muted);text-decoration:none}.lp-footer a:hover{color:var(--lp-accent);text-decoration:underline}.lp-footer address{font-style:normal}.lp-footer address p{margin:0}.lp-social-row{display:flex;flex-wrap:wrap;gap:12px}.lp-social-row a{width:36px;height:36px;display:grid;place-items:center;border-radius:8px;color:var(--lp-muted)}.lp-social-row a:hover{background:#0f172a0f;text-decoration:none;color:var(--lp-fg)}.lp-footer-bottom{margin-top:48px;padding-top:32px;border-top:1px solid var(--lp-line-strong);text-align:center;font-size:.875rem;color:var(--lp-muted)}.lp-footer-bottom p{margin:0}@media(max-width:900px){.lp-root{--lp-max: min(92%, calc(100% - 24px) );--lp-header-h: 56px}.lp-header-inner,.lp-container,.lp-slogan{padding-left:12px;padding-right:12px}.lp-brand-name{font-size:1.1rem}.lp-brand-mark{width:28px;height:28px}.lp-login-btn{height:34px;padding:0 14px;font-size:.88rem}.lp-lang-select{min-width:84px;max-width:110px;height:34px;padding-right:28px;font-size:.82rem}.lp-hero-grid,.lp-split,.lp-card-grid{grid-template-columns:1fr}.lp-hero-visual{order:-1;max-width:100%;margin:0 auto}.lp-hero-panel{padding:28px 18px}.lp-eyebrow{font-size:clamp(1.1rem,3.8vw,1.7rem)}.lp-hero-points{font-size:clamp(1.2rem,4.8vw,2.4rem)}.lp-hero-point:before{width:10px;height:10px}.lp-os-row{grid-template-columns:repeat(4,1fr);gap:10px}.lp-footer-grid{grid-template-columns:1fr 1fr}.lp-section{padding:32px 0}.lp-section-head h2{font-size:clamp(1.45rem,6vw,2rem)}}@media(max-width:720px){.lp-root{--lp-max: calc(100% - 24px) }.lp-slogan{margin-top:20px;margin-bottom:16px;font-size:clamp(2rem,11vw,3.2rem)}.lp-os-row{grid-template-columns:repeat(4,minmax(0,1fr))}.lp-os-tile{padding:14px 6px 12px;border-radius:16px}.lp-os-icon{width:40px;height:40px}.lp-os-tile span{font-size:.78rem}.lp-gallery-card{max-width:var(--lp-max)}.lp-footer{padding:36px 16px}.lp-footer-grid{grid-template-columns:1fr;gap:28px}.lp-footer-bottom{margin-top:32px;padding-top:24px}}@media(max-width:420px){.lp-os-row{grid-template-columns:repeat(3,minmax(0,1fr))}}.lp-download-page{padding-top:calc(var(--lp-header-h) + 48px);padding-bottom:72px}.lp-download-page .lp-section-head{text-align:center;margin-bottom:36px}.lp-download-panel{max-width:920px;margin:0 auto;padding:28px 24px;border-radius:var(--lp-radius);border:1px solid var(--lp-line-strong);background:var(--lp-elevated);box-shadow:0 8px 24px #0f172a14;overflow:visible}.lp-download-panel .lp-os-tile{padding:22px 12px 16px}.lp-download-panel .lp-os-icon{width:56px;height:56px}