:root{--bg:#0b0d12;--panel:#0f1218;--card:#12151c;--light:#ffffff;--muted:#9aa0aa;--primary:#6c4dd3;--primary2:#5a3daa;--accent:#00ffc0;--danger:#ef4444}
*{box-sizing:border-box}
html,body{height:100%;background:var(--bg);color:var(--light);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,Noto Sans,sans-serif}
body{margin:0;overflow-x:hidden}
#bg-canvas{position:fixed;inset:0;z-index:-1}
.page{position:relative}
.nav{position:sticky;top:0;z-index:10;padding:16px 0;background:linear-gradient(180deg,rgba(12,14,19,.9),rgba(12,14,19,.6));backdrop-filter:blur(6px)}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}
.nav .container{display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:12px}
.brand-logo{width:40px;height:40px;border-radius:10px}
.brand-title{font-weight:800;letter-spacing:.5px}
.brand-sub{font-size:12px;color:var(--muted)}
.nav-actions{display:flex;gap:8px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 12px;border-radius:10px;text-decoration:none;font-weight:700;font-size: 14px; letter-spacing:.2px;transition:transform .15s ease,box-shadow .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:linear-gradient(90deg,var(--primary),var(--primary2));box-shadow:0 8px 24px rgba(108,77,211,.35);color:#fff}
.btn.light{background:#fff;color:#111}
.btn.ghost{border:1px solid rgba(255,255,255,.08);color:#fff;background:rgba(255,255,255,.03)}
.btn.full{width:100%}
.btn.micro{padding:6px 10px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.06);color:#fff;border-radius:8px}
.btn.pulse{position:relative}
.btn.pulse::after{content:"";position:absolute;inset:-4px;border-radius:12px;box-shadow:0 0 0 0 rgba(108,77,211,.35);animation:btnPulse 2.2s ease-out infinite}
@keyframes btnPulse{0%{box-shadow:0 0 0 0 rgba(108,77,211,.35)}70%{box-shadow:0 0 0 12px rgba(108,77,211,0)}100%{box-shadow:0 0 0 0 rgba(108,77,211,0)}}
.hero{padding:48px 0}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}
.title{font-size:40px;font-weight:900;line-height:1.15;margin:0}
.desc{margin-top:12px;color:var(--muted)}
.ctas{display:flex;gap:10px;margin-top:18px}
.hero-stats{display:flex;gap:10px;margin-top:24px}
.stat-card{border:1px solid rgba(255,255,255,.08);background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.01));border-radius:12px;padding:12px 16px;display:flex;gap:5px;align-items:center;backdrop-filter:blur(6px)}
.stat-card .n{font-weight:800;color:var(--accent)}
.stat-card .t{color:var(--muted)}
.hero-right{display:flex;align-items:center;justify-content:center}
.mockup{position:relative;width:420px;height:260px;border-radius:18px;overflow:hidden;background:linear-gradient(135deg,#1b1f2a,#12151c);box-shadow:0 16px 48px rgba(0,0,0,.4)}
.screen-glow{position:absolute;inset:-20%;background:radial-gradient(120px 180px at 20% 20%,rgba(108,77,211,.35),transparent 60%),radial-gradient(120px 180px at 80% 80%,rgba(0,255,192,.18),transparent 60%);filter:blur(18px)}
.mock-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.3}
.section{padding:32px 0}
.section.light{background:linear-gradient(180deg,rgba(255,255,255,.02),rgba(255,255,255,.01))}
.section-title{font-size:28px;font-weight:800;margin:0 0 16px}
.grid{display:grid;gap:16px}
.features-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.dl-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.card{border:1px solid rgba(255,255,255,.08);background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.02));border-radius:14px;padding:16px;transition:transform .15s ease,box-shadow .2s ease}
.card:hover{transform:translateY(-2px);box-shadow:0 12px 36px rgba(0,0,0,.35)}
.card .icon{font-size:22px}
.card-title{font-weight:800;margin-top:6px}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.step{border:1px dashed rgba(255,255,255,.12);border-radius:12px;padding:14px;display:flex;gap:10px;align-items:center;background:rgba(255,255,255,.03)}
.step .num{font-weight:900;color:var(--primary)}
.reqs{margin-top:16px}
.req-card{border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:14px;background:rgba(255,255,255,.03)}
.req-title{font-weight:800;margin-bottom:8px}
.req-list{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted)}
.dl-card{border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:16px;background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.02))}
.dl-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.dl-title{font-weight:800}
.qr{width:100%;height:auto;border-radius:10px;border:1px solid rgba(255,255,255,.08)}
.dl-meta{margin-top:8px;color:var(--muted)}
.code{font-weight:800;color:#fff}
.dl-tip{text-align:center;color:var(--muted);margin-top:12px}
.shots-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.shot-card{cursor:pointer}
.shot-thumb{position:relative;width:100%;aspect-ratio:16/10;border-radius:10px;overflow:hidden;border:1px solid rgba(255,255,255,.08);background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.02))}
.shot-img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .2s ease}
.shot-card:hover .shot-img{transform:scale(1.02)}
.shot-title{font-weight:800;margin-top:8px;color:#fff}
.video-card{border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:16px;background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.02));display:flex;justify-content:center}
.video-wrap{position:relative;width:100%;max-width:920px;aspect-ratio:16/9;border-radius:12px;overflow:hidden;border:1px solid rgba(255,255,255,.08);box-shadow:0 16px 48px rgba(0,0,0,.35);background:#0f1218}
.video{width:100%;height:100%;display:block}
.video-cover{position:absolute;inset:0;background:url('./fenmian.jpg') center/100% 110% no-repeat;display:flex;align-items:center;justify-content:center;transition:opacity .3s ease}
.video-cover.hide{opacity:0;pointer-events:none}
.cover-play{width:72px;height:72px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:linear-gradient(180deg,rgba(255,255,255,.92),rgba(255,255,255,.85));color:#111;font-size:28px;font-weight:800;box-shadow:0 12px 36px rgba(0,0,0,.35)}
.community-card{border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:16px;background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.02));display:flex;flex-direction:column;align-items:center;gap:8px;max-width:480px;margin:0 auto}
.community-qr{width:280px;height:280px;object-fit:contain;border-radius:10px;border:1px solid rgba(255,255,255,.08)}
.faq{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px}
.faq-item{border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:14px;background:rgba(255,255,255,.03)}
.faq-item .q{font-weight:800;margin-bottom:6px}
.faq-item .a{color:var(--muted)}
.footer{padding:18px 0;border-top:1px solid rgba(255,255,255,.08);background:linear-gradient(180deg,rgba(255,255,255,.02),rgba(255,255,255,.01))}
.footer-inner{display:flex;align-items:center;justify-content:space-between}
#toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:rgba(0,0,0,.7);color:#fff;padding:10px 16px;border-radius:10px;opacity:0;pointer-events:none}
.lightbox{position:fixed;inset:0;display:none;align-items:center;justify-content:center;z-index:1000}
.lightbox.open{display:flex}
.lightbox-backdrop{position:absolute;inset:0;background:rgba(12,14,19,.7);backdrop-filter:blur(4px)}
.lightbox-body{position:relative;max-width:92vw;max-height:88vh;border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:12px;background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.02));box-shadow:0 16px 48px rgba(0,0,0,.45);display:flex;flex-direction:column;align-items:center;gap:10px}
.lightbox-img{max-width:90vw;max-height:72vh;border-radius:10px;display:block}
.lightbox-caption{color:var(--muted);font-weight:800}
.lightbox-close{position:absolute;top:8px;right:8px}
.reveal{opacity:.0;transform:translateY(10px);transition:opacity .5s ease,transform .5s ease}
.reveal.in{opacity:1;transform:none}
@media(max-width:900px){.hero-inner{grid-template-columns:1fr}.mockup{width:100%;max-width:420px;height:220px}}
@media(min-width:900px){.dl-card{display:flex;flex-direction:column;align-items:center}.qr{width:320px;height:320px;object-fit:contain}.dl-grid{grid-template-columns:repeat(2,minmax(360px,1fr))}.section{padding:40px 0}.hero{padding:64px 0}.mockup{width:520px;height:320px}.community-qr{width:320px;height:320px}}