:root{
  --red:#ef3340;--red2:#ff5964;--ink:#13161b;--muted:#667085;--bg:#f6f7f9;--card:#ffffff;
  --line:#e7e9ee;--dark:#0f1115;--shadow:0 20px 60px rgba(17,24,39,.12);
}
*{box-sizing:border-box} html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:white;line-height:1.72}
a{color:inherit;text-decoration:none} img{max-width:100%;display:block}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(16px);border-bottom:1px solid rgba(0,0,0,.06)}
.nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo img{height:50px;width:auto}.menu{display:flex;gap:28px;color:#3d4653;font-size:15px}.nav-cta{background:var(--red);color:#fff;padding:12px 22px;border-radius:999px;font-weight:700}
.hero{padding:54px 0 44px;background:radial-gradient(circle at 10% 10%,#fff1f2,transparent 28%),linear-gradient(180deg,#fff,#f8f9fb)}
.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;padding:8px 13px;border:1px solid #ffd2d6;background:#fff5f6;color:#b4232c;border-radius:999px;font-size:13px;font-weight:700}
h1{font-size:76px;line-height:1.02;margin:18px 0 16px;letter-spacing:-4px}
.hero p{font-size:18px;color:#505866;max-width:680px}
.btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 20px;border-radius:12px;font-weight:800;border:1px solid var(--line)}
.btn.primary{background:var(--red);color:#fff;border-color:var(--red);box-shadow:0 12px 30px rgba(239,51,64,.25)}.btn.secondary{background:#fff}
.trustline{display:flex;gap:18px;flex-wrap:wrap;margin-top:24px;color:#5c6470;font-size:13px}
.hero-card{position:relative;border-radius:28px;overflow:hidden;box-shadow:var(--shadow);background:#111}.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.badge{position:absolute;left:18px;bottom:18px;background:rgba(10,10,12,.78);backdrop-filter:blur(10px);color:#fff;border:1px solid rgba(255,255,255,.15);padding:12px 14px;border-radius:14px;font-size:13px}
.section{padding:82px 0}.section.alt{background:var(--bg)}.section.dark{background:var(--dark);color:white}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:30px}.section-head h2{font-size:38px;line-height:1.15;margin:0}.section-head p{max-width:650px;color:var(--muted);margin:0}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:24px;box-shadow:0 12px 35px rgba(16,24,40,.05)}
.card .icon{width:46px;height:46px;border-radius:13px;background:#fff0f1;color:var(--red);display:grid;place-items:center;font-weight:900;margin-bottom:14px}
.card h3{margin:0 0 8px}.card p{margin:0;color:#667085}
.platforms{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.platform{background:#fff;border:1px solid var(--line);padding:20px;border-radius:16px;text-align:center;font-weight:800}
.showcase{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.showcase figure{margin:0;border-radius:24px;overflow:hidden;background:#111;position:relative}.showcase img{aspect-ratio:16/9;object-fit:cover}.showcase figcaption{position:absolute;left:14px;bottom:14px;background:rgba(0,0,0,.7);color:white;padding:8px 12px;border-radius:10px;font-size:13px}
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.article-card{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:white}.article-card img{aspect-ratio:16/9;object-fit:cover}.article-card .pad{padding:18px}.article-card h3{font-size:18px;line-height:1.45;margin:0 0 8px}.article-card p{font-size:14px;color:#667085;margin:0}
.download-panel{display:grid;grid-template-columns:1.1fr .9fr;gap:25px;background:linear-gradient(135deg,#191d24,#090b0e);color:white;border-radius:28px;padding:36px;align-items:center}.download-panel p{color:#bcc3cf}.download-panel .btn.primary{box-shadow:none}
.footer{background:#0d0f13;color:#adb4c0;padding:48px 0 24px}.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}.footer img{filter:none;background:white;border-radius:12px}.footer small{display:block;margin-top:30px;border-top:1px solid #292e36;padding-top:18px}
.breadcrumb{font-size:13px;color:#7b8493;padding:22px 0}.article-hero{padding:26px 0 34px}.article-hero h1{font-size:44px;letter-spacing:-1.7px;line-height:1.2}.meta{display:flex;gap:15px;flex-wrap:wrap;color:#6c7480;font-size:13px;margin:12px 0 22px}
.article-layout{display:grid;grid-template-columns:minmax(0,820px) 280px;gap:40px}.article-body{font-size:17px}.article-body h2{font-size:28px;margin-top:40px}.article-body p{color:#313741}.article-cover{border-radius:24px;overflow:hidden;margin:12px 0 34px}.toc{position:sticky;top:100px;border:1px solid var(--line);border-radius:18px;padding:18px;background:#fff}.toc a{display:block;color:#5b6470;font-size:14px;padding:7px 0}
.note{border-left:4px solid var(--red);background:#fff5f6;padding:14px 16px;border-radius:0 12px 12px 0}
.sources{border-top:1px solid var(--line);margin-top:38px;padding-top:22px}.sources li{margin:6px 0}.sources a{color:#b4232c;text-decoration:underline}
@media(max-width:900px){.hero-grid,.article-layout,.download-panel,.footer-grid{grid-template-columns:1fr}.grid-3,.article-grid{grid-template-columns:1fr 1fr}.platforms{grid-template-columns:repeat(2,1fr)}h1{font-size:54px}.menu{display:none}.toc{position:static}}
@media(max-width:620px){.grid-3,.article-grid,.showcase{grid-template-columns:1fr}.container{width:min(100% - 28px,1180px)}h1{font-size:46px}.section{padding:58px 0}.section-head{display:block}.section-head h2{font-size:30px}.hero{padding-top:34px}}

.related-articles{margin-top:34px}.related-articles h2{margin-bottom:16px}.related-articles .article-card{text-decoration:none;color:inherit}.related-articles .article-card:hover{transform:translateY(-2px);transition:.2s ease}