/* 顶部通知条官网风 · 信任背书与官方下载双CTA */
:root{
  --bg:#f4f6f9;--card:#fff;--ink:#1a2332;--muted:#5f6b7a;--line:#e2e7ee;
  --brand:#e6252d;--brand-d:#c81c26;--navy:#1e3a5f;--notice:#0b1c33;
  --max:1160px;--r:12px;--notice-h:42px;
}
*{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:1.65}
a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button{font:inherit}
.wrap{width:min(100% - 32px,var(--max));margin-inline:auto}
.top-notice{background:linear-gradient(90deg,#0b1c33 0%,#132a4a 55%,#1a2038 100%);color:#e8eef8;border-bottom:1px solid rgba(255,255,255,.08);position:relative;z-index:60}
.notice-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:var(--notice-h);padding:8px 0;flex-wrap:wrap}
.notice-text{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px}
.notice-tag{display:inline-flex;align-items:center;padding:2px 8px;border-radius:999px;background:var(--brand);color:#fff;font-size:11px;font-weight:800}
.notice-text strong{color:#fff;font-weight:700}
.notice-actions{display:flex;align-items:center;gap:10px;font-size:13px}
.notice-actions a{color:#c5d4e8}
.notice-actions a:hover{color:#fff}
.notice-cta{background:var(--brand)!important;color:#fff!important;padding:6px 12px;border-radius:999px;font-weight:700}
.notice-close{border:0;background:transparent;color:#9aa8bc;font-size:18px;line-height:1;cursor:pointer;padding:0 4px}
.notice-close:hover{color:#fff}
body.notice-hidden .top-notice{display:none}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:none;border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800}
.logo-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(145deg,#ff5a63,var(--brand));color:#fff;display:grid;place-items:center;font-size:13px}
.nav-links{display:flex;align-items:center;gap:6px;flex-wrap:wrap;font-size:13px}
.nav-links a{padding:7px 12px;border-radius:999px;color:var(--muted)}
.nav-links a:hover{background:#eef2f7;color:var(--ink)}
.nav-links a.t-active{background:#ffe8ea;color:var(--brand);font-weight:700}
.nav-cta{background:var(--brand)!important;color:#fff!important;font-weight:700}
.nav-sep{width:1px;height:14px;background:var(--line);margin:0 4px}
.hero{position:relative;overflow:hidden;color:#fff;background:
  radial-gradient(ellipse 50% 60% at 88% 30%,rgba(230,37,45,.42) 0%,transparent 55%),
  radial-gradient(ellipse 80% 70% at 15% 35%,#0a3a5c 0%,transparent 55%),
  linear-gradient(165deg,#071018 0%,#12283e 42%,#0e1a28 100%)}
.skyline{position:absolute;inset:auto 0 0 0;height:160px;opacity:.25;pointer-events:none;z-index:1}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center;padding:64px 0 76px}
.kicker{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);font-size:12px;color:#c5d4e8;margin-bottom:14px}
.kicker i{width:8px;height:8px;border-radius:50%;background:#ff7a82}
.hero h1{margin:0 0 12px;font-size:clamp(26px,3.8vw,42px);line-height:1.15;font-weight:800}
.hero-lead{margin:0 0 16px;color:#c5d0dc;font-size:15px;max-width:50ch}
.dual-cta{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:16px;max-width:460px}
.dual-card{padding:12px 14px;border-radius:12px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14)}
.dual-card strong{display:block;font-size:13px;margin-bottom:4px;color:#fff}
.dual-card span{font-size:12px;color:#a8b8cc}
.platform-pills{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.platform-pills button{border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);color:#eef3fa;padding:8px 14px;border-radius:999px;cursor:pointer}
.platform-pills button.is-on{background:#fff;color:#1a2332;font-weight:700;border-color:#fff}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:16px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:999px;font-weight:700;border:1px solid transparent;cursor:pointer}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 28px rgba(230,37,45,.35)}
.btn-primary:hover{background:var(--brand-d)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.08)}
.btn-line{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-line:hover{border-color:var(--brand);color:var(--brand)}
.btn-sm{padding:8px 14px;font-size:13px}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 16px;font-size:12px;color:#a8b8cc;margin-bottom:12px}
.update-list{margin:0;padding-left:18px;color:#c5d0dc;font-size:13px}
.update-list li{margin:4px 0}
.mock-wrap{position:relative;perspective:1000px}
.mock{background:linear-gradient(180deg,#243447,#152030);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:14px;box-shadow:0 30px 60px rgba(0,0,0,.4);transform:rotateY(-5deg) rotateX(2deg)}
.mock-bar{height:12px;display:flex;gap:6px;margin-bottom:10px}
.mock-bar span{width:9px;height:9px;border-radius:50%;background:#6b7c90}
.mock-screen{display:grid;grid-template-columns:1.3fr .9fr;gap:8px;background:#0e1622;border-radius:12px;overflow:hidden;min-height:250px}
.mock-chart{padding:10px;position:relative}
.mock-chart img{width:100%;height:150px;object-fit:cover;border-radius:10px;opacity:.92}
.chart-line{position:absolute;left:16px;right:16px;top:50%;height:2px;background:linear-gradient(90deg,transparent,#7eb8ff,transparent);opacity:.55}
.mock-side{border-left:1px solid rgba(255,255,255,.06);padding:10px;font-size:11px}
.mock-side h4{margin:0 0 8px;color:#c9daf0;font-weight:600;font-size:11px}
.stk{display:flex;justify-content:space-between;padding:5px 0;border-bottom:1px solid rgba(255,255,255,.05);color:#e6edf5}
.stk em{font-style:normal;color:#f8a9a0}
.badge-adfree{position:absolute;top:-8px;right:-6px;background:var(--brand);color:#fff;font-size:12px;font-weight:800;padding:10px 14px;transform:rotate(12deg);border-radius:10px;box-shadow:0 10px 24px rgba(230,37,45,.4);z-index:2}
.section{padding:68px 0}
.section-head{text-align:center;margin-bottom:32px}
.section-head h2{margin:0 0 10px;font-size:clamp(22px,3vw,32px)}
.section-head p{margin:0 auto;max-width:56ch;color:var(--muted)}
.trust{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:8px}
.trust-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:0 8px 20px rgba(30,58,95,.05)}
.trust-card h3{margin:0 0 6px;font-size:16px;color:var(--navy)}
.trust-card p{margin:0;color:var(--muted);font-size:13px}
.update-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:0 8px 24px rgba(30,58,95,.05)}
.update-panel h3{margin:0 0 10px;font-size:18px}
.update-panel ul{margin:0;padding-left:18px;color:var(--muted);font-size:14px}
.update-panel li{margin:6px 0}
.platforms{display:grid;gap:14px}
.plat-pc{position:relative;overflow:hidden;display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;background:linear-gradient(120deg,#fff 0%,#fff0f2 100%);border:1px solid #f0d2db;border-radius:var(--r);padding:26px;box-shadow:0 12px 32px rgba(230,37,45,.08)}
.ribbon{position:absolute;top:16px;left:-30px;background:var(--brand);color:#fff;font-size:12px;font-weight:800;padding:6px 40px;transform:rotate(-45deg)}
.plat-ico{width:58px;height:58px;border-radius:12px;background:linear-gradient(145deg,#ff5a63,var(--brand));display:grid;place-items:center;font-size:22px;color:#fff}
.plat-pc h3{margin:0 0 6px;font-size:20px}
.plat-pc p{margin:0;color:var(--muted);font-size:14px}
.plat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.plat-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px;text-align:center}
.plat-card h3{margin:0 0 8px;font-size:15px}
.plat-card p{margin:0 0 12px;color:var(--muted);font-size:13px}
.feat{display:grid;gap:22px}
.feat-row{display:grid;grid-template-columns:1fr 1fr;gap:0;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:0 8px 24px rgba(30,58,95,.05)}
.feat-row.reverse .feat-media{order:2}
.feat-media img{width:100%;height:250px;object-fit:cover}
.feat-body{padding:28px}
.feat-body .pill{display:inline-block;margin-bottom:8px;padding:4px 10px;border-radius:999px;background:#eef2f7;color:var(--navy);font-size:12px;font-weight:700}
.feat-body h3{margin:0 0 8px;font-size:20px}
.feat-body p{margin:0;color:var(--muted);font-size:14px}
.more-feats{margin-top:22px}
.more-feats summary{cursor:pointer;list-style:none;padding:14px 18px;background:#fff;border:1px solid var(--line);border-radius:999px;font-weight:700;text-align:center}
.more-feats summary::-webkit-details-marker{display:none}
.more-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:12px}
.more-item{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px}
.more-item h4{margin:0 0 4px;font-size:14px}
.more-item p{margin:0;font-size:13px;color:var(--muted)}
.community{padding:68px 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:24px;max-width:720px;margin:0 auto}
.phone{background:#0a0e12;border:3px solid #1a2230;border-radius:28px;padding:12px;box-shadow:0 24px 48px rgba(0,0,0,.3);max-width:280px;margin:0 auto;width:100%}
.phone-notch{width:40%;height:8px;background:#1a2230;border-radius:0 0 8px 8px;margin:0 auto 10px}
.feed{background:#121820;border-radius:18px;padding:12px;min-height:300px}
.feed-item{padding:10px 0;border-bottom:1px solid #1e2834}
.feed-item:last-child{border:0}
.feed-item strong{display:block;font-size:13px;margin-bottom:4px;color:#fff}
.feed-item span{font-size:12px;color:#a8b4c0}
.site-footer{background:#0e1a28;color:#c5d0dc;padding:52px 0 28px}
.qr-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:32px}
.qr-box{text-align:center}
.qr-fake{width:84px;height:84px;margin:0 auto 8px;background:
  repeating-linear-gradient(0deg,#1a2838 0 4px,transparent 4px 8px),
  repeating-linear-gradient(90deg,#1a2838 0 4px,transparent 4px 8px),#0a1420;border:1px solid #2a3a4a;border-radius:10px}
.qr-box span{font-size:12px;color:#8a98a8}
.foot-links{display:flex;flex-wrap:wrap;gap:12px 18px;margin-bottom:16px;font-size:14px}
.foot-links a:hover{color:#fff}
.foot-contact{font-size:13px;color:#8a98a8;margin-bottom:14px}
.foot-copy{font-size:12px;color:#5a6878;border-top:1px solid #1a2838;padding-top:14px}
.page-hero{padding:44px 0 16px;background:linear-gradient(180deg,#eef2f7,#f4f6f9)}
.page-hero h1{margin:0 0 10px;font-size:clamp(24px,3vw,34px)}
.page-hero p{margin:0;color:var(--muted);max-width:60ch}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:12px}
.crumbs a{color:var(--brand)}
.card-list{display:grid;gap:12px}
.dl-card,.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.dl-card{display:grid;grid-template-columns:1fr auto;gap:14px;align-items:center}
.dl-card h2,.faq-item h2{margin:0 0 8px;font-size:17px}
.dl-card p,.faq-item p{margin:0;color:var(--muted);font-size:14px}
@media (max-width:900px){
  .hero-grid,.feat-row,.feat-row.reverse .feat-media,.plat-pc,.phones,.plat-grid,.more-grid,.qr-grid,.dl-card,.trust,.dual-cta{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}