/* 极速短页转化风 · 一屏说完下载理由与按钮 */
:root{
  --bg:#0b0f14;--card:#141a22;--ink:#eef2f7;--muted:#93a0b0;--line:#243041;
  --brand:#e6252d;--brand-d:#c81c26;--ok:#3dd68c;--max:1080px;--r:12px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink);line-height:1.55}
a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button{font:inherit}
.wrap{width:min(100% - 28px,var(--max));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(11,15,20,.92);backdrop-filter:none;border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:56px;gap:10px}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:15px}
.logo-mark{width:30px;height:30px;border-radius:8px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:12px}
.nav-links{display:flex;align-items:center;gap:4px;flex-wrap:wrap;font-size:12px}
.nav-links a{padding:6px 10px;border-radius:999px;color:var(--muted)}
.nav-links a:hover{background:#1a2230;color:#fff}
.nav-links a.t-active{background:#2a1216;color:var(--brand);font-weight:700}
.nav-cta{background:var(--brand)!important;color:#fff!important;font-weight:700}
.nav-sep{width:1px;height:12px;background:var(--line);margin:0 2px}
.hero{position:relative;overflow:hidden;color:#fff;background:
  radial-gradient(ellipse 50% 60% at 88% 28%,rgba(230,37,45,.4) 0%,transparent 55%),
  radial-gradient(ellipse 70% 70% at 12% 40%,#0a2840 0%,transparent 55%),
  linear-gradient(165deg,#060a10 0%,#0c1624 45%,#0a1018 100%);min-height:auto}
.skyline{position:absolute;inset:auto 0 0 0;height:100px;opacity:.2;pointer-events:none;z-index:1}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:center;padding:36px 0 40px}
.kicker{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;background:rgba(61,214,140,.1);border:1px solid rgba(61,214,140,.3);font-size:11px;color:#9ef0c4;margin-bottom:10px}
.kicker i{width:6px;height:6px;border-radius:50%;background:var(--ok)}
.hero h1{margin:0 0 8px;font-size:clamp(22px,3.4vw,34px);line-height:1.15;font-weight:800}
.hero-lead{margin:0 0 12px;color:#b8c4d0;font-size:13px;max-width:48ch}
.why{display:grid;grid-template-columns:1fr 1fr 1fr;gap:6px;margin-bottom:12px}
.why span{padding:8px 8px;border-radius:8px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);font-size:11px;text-align:center;color:#d5deea}
.why span b{display:block;color:var(--ok);font-size:12px;margin-bottom:2px}
.platform-pills{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.platform-pills button{border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.05);color:#e8edf5;padding:6px 12px;border-radius:999px;cursor:pointer;font-size:12px}
.platform-pills button.is-on{background:#fff;color:#12151c;font-weight:700;border-color:#fff}
.hero-actions{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:11px 18px;border-radius:999px;font-weight:700;border:1px solid transparent;cursor:pointer;font-size:13px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 0 24px rgba(230,37,45,.4)}
.btn-primary:hover{background:var(--brand-d)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.28)}
.btn-ghost:hover{background:rgba(255,255,255,.06)}
.btn-line{background:#1a2230;color:var(--ink);border-color:var(--line)}
.btn-line:hover{border-color:var(--brand);color:var(--brand)}
.btn-sm{padding:7px 12px;font-size:12px}
.meta-row{display:flex;flex-wrap:wrap;gap:8px 12px;font-size:11px;color:#8b98a8;margin-bottom:8px}
.update-list{margin:0;padding-left:16px;color:#a8b4c0;font-size:12px}
.update-list li{margin:2px 0}
.mock-wrap{position:relative}
.mock{background:#121820;border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:10px;box-shadow:0 20px 40px rgba(0,0,0,.45)}
.mock-bar{height:10px;display:flex;gap:5px;margin-bottom:8px}
.mock-bar span{width:7px;height:7px;border-radius:50%;background:#3a4a58}
.mock-screen{display:grid;grid-template-columns:1.3fr .9fr;gap:6px;background:#080c12;border-radius:10px;overflow:hidden;min-height:210px}
.mock-chart{padding:8px;position:relative}
.mock-chart img{width:100%;height:120px;object-fit:cover;border-radius:8px;opacity:.92}
.chart-line{position:absolute;left:12px;right:12px;top:48%;height:2px;background:linear-gradient(90deg,transparent,var(--ok),transparent);opacity:.55}
.mock-side{border-left:1px solid rgba(255,255,255,.06);padding:8px;font-size:10px}
.mock-side h4{margin:0 0 6px;color:#c9daf0;font-size:10px}
.stk{display:flex;justify-content:space-between;padding:4px 0;border-bottom:1px solid rgba(255,255,255,.05);color:#e6edf5}
.stk em{font-style:normal;color:#f8a9a0}
.badge-adfree{position:absolute;top:-6px;right:-4px;background:var(--brand);color:#fff;font-size:11px;font-weight:800;padding:8px 10px;transform:rotate(12deg);border-radius:8px;z-index:2}
.section{padding:36px 0}
.section-head{margin-bottom:16px}
.section-head h2{margin:0 0 6px;font-size:clamp(18px,2.4vw,24px)}
.section-head p{margin:0;max-width:64ch;color:var(--muted);font-size:13px}
.log-box{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:18px}
.log-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:14px}
.log-card h3{margin:0 0 6px;font-size:14px}
.log-card p,.log-card ul{margin:0;color:var(--muted);font-size:12px;padding-left:16px}
.log-card li{margin:2px 0}
.platforms{display:grid;gap:10px}
.plat-pc{position:relative;overflow:hidden;display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;background:linear-gradient(90deg,#1a1014,#141a22);border:1px solid #3a2028;border-radius:var(--r);padding:18px}
.ribbon{position:absolute;top:12px;left:-28px;background:var(--brand);color:#fff;font-size:10px;font-weight:800;padding:4px 34px;transform:rotate(-45deg)}
.plat-ico{width:44px;height:44px;border-radius:10px;background:var(--brand);display:grid;place-items:center;font-size:18px;color:#fff}
.plat-pc h3{margin:0 0 2px;font-size:16px}
.plat-pc p{margin:0;color:var(--muted);font-size:12px}
.plat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.plat-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:14px;text-align:center}
.plat-card h3{margin:0 0 4px;font-size:13px}
.plat-card p{margin:0 0 8px;color:var(--muted);font-size:11px}
.feat{display:grid;gap:12px}
.feat-row{display:grid;grid-template-columns:1fr 1.2fr;gap:0;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.feat-row.reverse .feat-media{order:2}
.feat-media img{width:100%;height:160px;object-fit:cover}
.feat-body{padding:16px}
.feat-body .pill{display:inline-block;margin-bottom:4px;padding:2px 8px;border-radius:999px;background:#1a2230;color:var(--ok);font-size:10px}
.feat-body h3{margin:0 0 4px;font-size:16px}
.feat-body p{margin:0;color:var(--muted);font-size:12px}
.more-feats{margin-top:12px}
.more-feats summary{cursor:pointer;list-style:none;padding:10px 14px;background:var(--card);border:1px solid var(--line);border-radius:999px;font-weight:700;font-size:13px;text-align:center}
.more-feats summary::-webkit-details-marker{display:none}
.more-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:8px}
.more-item{background:#0e141c;border:1px solid var(--line);border-radius:8px;padding:10px}
.more-item h4{margin:0 0 2px;font-size:12px}
.more-item p{margin:0;font-size:11px;color:var(--muted)}
.community{padding:36px 0;background:linear-gradient(135deg,#3b1a5c 0%,#7a2e1e 55%,#c45a1a 100%)}
.community .section-head h2,.community .section-head p{color:#fff}
.community .section-head p{opacity:.9}
.phones{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:640px;margin:0 auto}
.phone{background:#0a0e12;border:2px solid #1a2230;border-radius:22px;padding:10px;max-width:240px;margin:0 auto;width:100%}
.phone-notch{width:36%;height:6px;background:#1a2230;border-radius:0 0 6px 6px;margin:0 auto 8px}
.feed{background:#121820;border-radius:14px;padding:8px;min-height:220px}
.feed-item{padding:7px 0;border-bottom:1px solid #1e2834}
.feed-item:last-child{border:0}
.feed-item strong{display:block;font-size:12px;margin-bottom:2px;color:#fff}
.feed-item span{font-size:11px;color:#a8b4c0}
.site-footer{background:#060a0e;color:#b8c4d0;padding:32px 0 20px;border-top:1px solid var(--line)}
.qr-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:20px}
.qr-box{text-align:center}
.qr-fake{width:64px;height:64px;margin:0 auto 4px;background:
  repeating-linear-gradient(0deg,#1a2230 0 3px,transparent 3px 6px),
  repeating-linear-gradient(90deg,#1a2230 0 3px,transparent 3px 6px),#0a0e12;border:1px solid #2a3444;border-radius:6px}
.qr-box span{font-size:10px;color:var(--muted)}
.foot-links{display:flex;flex-wrap:wrap;gap:8px 14px;margin-bottom:10px;font-size:12px}
.foot-links a:hover{color:#fff}
.foot-contact{font-size:11px;color:var(--muted);margin-bottom:8px}
.foot-copy{font-size:10px;color:#5a6575;border-top:1px solid #1a2230;padding-top:10px}
.page-hero{padding:28px 0 10px;background:#121820}
.page-hero h1{margin:0 0 6px;font-size:clamp(20px,2.6vw,28px)}
.page-hero p{margin:0;color:var(--muted);max-width:60ch;font-size:13px}
.crumbs{font-size:12px;color:var(--muted);margin-bottom:8px}
.crumbs a{color:var(--ok)}
.card-list{display:grid;gap:8px}
.dl-card,.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:14px}
.dl-card{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center}
.dl-card h2,.faq-item h2{margin:0 0 4px;font-size:14px}
.dl-card p,.faq-item p{margin:0;color:var(--muted);font-size:12px}
@media (max-width:900px){
  .hero-grid,.feat-row,.feat-row.reverse .feat-media,.plat-pc,.phones,.plat-grid,.more-grid,.qr-grid,.dl-card,.why,.log-box{grid-template-columns:1fr}
  .feat-row.reverse .feat-media{order:0}
  .plat-pc{justify-items:start}
  .hide-sm{display:none!important}
}

/* perf */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}
.site-header{backdrop-filter:none!important;-webkit-backdrop-filter:none!important}
.feat-media img,.mock-chart img,.feat-row img{content-visibility:auto}
.community,.site-footer{content-visibility:auto;contain-intrinsic-size:800px}
img{height:auto}