:root{
    --brand:#f05a5f;
    --brand-2:#14b8a6;
    --accent:#f8c24d;
    --ink:#18202a;
    --muted:#6d7480;
    --line:#e7e9ee;
    --soft:#f7f8fb;
    --card:#ffffff;
    --shadow:0 18px 48px rgba(24,32,42,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--soft);line-height:1.7}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:var(--brand)}
.wrap{width:min(1180px,100%);margin:0 auto;padding:0 18px}

.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);border-bottom:1px solid rgba(231,233,238,.86);backdrop-filter:blur(14px)}
.header-inner{height:68px;display:flex;align-items:center;gap:18px}
.logo{display:flex;align-items:center;gap:10px;min-width:0;font-size:18px;font-weight:800;color:var(--ink)}
.logo-img{width:34px;height:34px;object-fit:contain;border-radius:8px}
.logo span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:12px}
.main-nav a{padding:8px 12px;border-radius:8px;color:#343b46;font-size:14px;font-weight:600}
.main-nav a:hover{background:#fff1f1;color:var(--brand);text-decoration:none}
.search{margin-left:auto;display:flex;align-items:center;gap:8px}
.search input,.drawer-search input{width:190px;height:38px;border:1px solid var(--line);border-radius:8px;padding:0 12px;font-size:14px;background:#fff;outline:none}
.search input:focus,.drawer-search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(240,90,95,.12)}
.search button,.drawer-search button{height:38px;border:0;border-radius:8px;background:var(--ink);color:#fff;padding:0 15px;font-size:14px;font-weight:700;cursor:pointer}

.nav-check{position:fixed;opacity:0;pointer-events:none}
.menu-btn{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:8px;background:#fff;align-items:center;justify-content:center;cursor:pointer}
.menu-btn span,.menu-btn:before,.menu-btn:after{content:"";width:18px;height:2px;background:var(--ink);display:block;border-radius:2px}
.menu-btn:before{transform:translateY(-6px)}
.menu-btn:after{transform:translateY(6px)}
.nav-mask{display:none;position:fixed;inset:0;background:rgba(11,17,24,.46);z-index:40}
.mobile-drawer{position:fixed;z-index:50;left:0;top:0;bottom:0;width:min(82vw,310px);background:#fff;box-shadow:var(--shadow);padding:18px;transform:translateX(-105%);transition:transform .22s ease;display:flex;flex-direction:column;gap:10px}
.mobile-drawer a{padding:12px 10px;border-radius:8px;font-weight:700;color:var(--ink)}
.mobile-drawer a:hover{background:#fff1f1;text-decoration:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;font-weight:800}
.drawer-head label{font-size:26px;line-height:1;cursor:pointer;color:var(--muted)}
.drawer-search{display:grid;grid-template-columns:1fr auto;gap:8px;margin-top:10px}
.drawer-search input{width:100%}
.nav-check:checked ~ .nav-mask{display:block}
.nav-check:checked ~ .mobile-drawer{transform:translateX(0)}

.hero{background:#10151d;color:#fff;overflow:hidden}
.hero-home,.hero-detail{padding:54px 0 42px;background:linear-gradient(135deg,#171b25 0%,#222836 44%,#0f766e 100%)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr);gap:32px;align-items:center}
.hero-copy{padding:18px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand-2);font-size:12px;font-weight:900;letter-spacing:0;text-transform:uppercase}
.hero h1{margin:10px 0 14px;font-size:clamp(32px,5vw,58px);line-height:1.08;letter-spacing:0;max-width:720px}
.hero p{margin:0;max-width:620px;color:rgba(255,255,255,.78);font-size:17px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;border-radius:8px;font-weight:800;text-decoration:none}
.btn.primary{background:var(--brand);color:#fff;box-shadow:0 12px 28px rgba(240,90,95,.28)}
.btn.ghost{border:1px solid rgba(255,255,255,.34);color:#fff;background:rgba(255,255,255,.08)}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.hero-visual{justify-self:end;width:min(100%,520px)}
.hero-visual img{width:100%;filter:drop-shadow(0 28px 46px rgba(0,0,0,.34))}

.feature-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px;margin-bottom:30px}
.feature-strip div{background:#fff;border:1px solid var(--line);border-radius:8px;padding:18px 20px;box-shadow:0 10px 28px rgba(24,32,42,.06)}
.feature-strip strong{display:block;font-size:18px}
.feature-strip span{display:block;margin-top:2px;color:var(--muted);font-size:14px}

.section-head{margin:38px 0 18px}
.section-head h2{margin:7px 0 6px;font-size:28px;line-height:1.25}
.section-head p{margin:0;color:var(--muted)}
.section-head.compact{margin-top:34px}
.download-section{margin:18px 0 34px}
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.app-card{display:flex;gap:14px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:8px;padding:16px;box-shadow:0 12px 34px rgba(24,32,42,.07)}
.app-icon{width:64px;height:64px;border-radius:16px;flex:0 0 auto;box-shadow:0 8px 18px rgba(24,32,42,.13)}
.app-info{min-width:0;flex:1}
.app-info h3{margin:0 0 4px;font-size:18px;line-height:1.25}
.app-info p{margin:0;color:var(--muted);font-size:13px;line-height:1.55;min-height:40px}
.download-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin-top:12px}
.download-actions a{height:34px;display:flex;align-items:center;justify-content:center;border-radius:8px;font-size:13px;font-weight:800;color:#fff;background:var(--brand)}
.download-actions a:nth-child(2){background:var(--brand-2)}
.download-actions a:nth-child(3){background:#4f63d7}
.download-actions a:hover{color:#fff;text-decoration:none;filter:brightness(.96)}

.list{margin-bottom:38px}
.news-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.news-list li{background:#fff;border:1px solid var(--line);border-radius:8px;padding:16px;box-shadow:0 10px 26px rgba(24,32,42,.055)}
.media-list li{display:grid;grid-template-columns:168px minmax(0,1fr);gap:16px;align-items:center}
.thumb{display:block;aspect-ratio:16/10;border-radius:8px;overflow:hidden;background:#eceff4}
.thumb img{width:100%;height:100%;object-fit:cover}
.news-list .title{display:block;font-size:17px;font-weight:800;color:var(--ink);line-height:1.45;word-break:break-word}
.news-list .title:hover{color:var(--brand);text-decoration:none}
.meta{display:flex;flex-wrap:wrap;gap:8px 18px;margin:8px 0;color:var(--muted);font-size:13px}
.excerpt{margin:0;color:#555f6d;font-size:14px;line-height:1.65}

.page-grid{margin-top:28px}
.detail{background:#fff;border:1px solid var(--line);border-radius:8px;padding:24px;box-shadow:0 14px 38px rgba(24,32,42,.07)}
.detail h1{margin:0 0 12px;font-size:28px;line-height:1.28;word-break:break-word}
.article-cover{width:100%;aspect-ratio:16/7;object-fit:cover;border-radius:8px;margin-bottom:18px;background:#eceff4}
.detail .content{font-size:16px;color:#303846}
.detail .content p{margin:0 0 16px;text-align:justify;word-break:break-word}
.back{margin:18px 0 0;font-weight:800}
.muted{color:var(--muted);font-size:14px}
mark{background:#fff0a8;padding:0 2px;border-radius:3px;color:inherit}

.related-section{margin:8px 0 46px}
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.related-card{background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden;box-shadow:0 10px 28px rgba(24,32,42,.06)}
.related-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:#eceff4}
.related-card h3{margin:12px 12px 6px;font-size:15px;line-height:1.45;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card p{margin:0 12px 14px;color:var(--muted);font-size:13px;line-height:1.55}
.related-card a:hover{text-decoration:none}

.site-footer{background:#151a22;color:rgba(255,255,255,.78);padding:26px 0;margin-top:32px}
.footer-grid{display:flex;justify-content:space-between;gap:18px;align-items:center}
.footer-grid strong{display:block;color:#fff;margin-bottom:2px}
.footer-grid p{margin:0;font-size:13px}

@media (max-width: 980px){
    .header-inner{height:62px}
    .menu-btn{display:flex;flex-direction:column}
    .main-nav,.search{display:none}
    .hero-home,.hero-detail{padding:36px 0 30px}
    .hero-grid{grid-template-columns:1fr;gap:18px}
    .hero-visual{justify-self:center;width:min(100%,430px)}
    .feature-strip,.app-grid{grid-template-columns:1fr}
    .related-grid{grid-template-columns:repeat(2,1fr)}
}

@media (max-width: 640px){
    .wrap{padding:0 14px}
    .logo span{max-width:180px}
    .hero h1{font-size:34px}
    .hero p{font-size:15px}
    .hero-actions{gap:10px}
    .btn{width:100%;min-height:42px}
    .feature-strip{margin-top:14px;margin-bottom:22px}
    .section-head h2{font-size:24px}
    .app-card{padding:14px;gap:12px}
    .app-icon{width:56px;height:56px;border-radius:14px}
    .download-actions{grid-template-columns:repeat(3,minmax(0,1fr))}
    .download-actions a{font-size:12px;padding:0 4px}
    .media-list li{grid-template-columns:1fr;gap:12px}
    .detail{padding:16px}
    .article-cover{aspect-ratio:16/10}
    .related-grid{grid-template-columns:1fr}
    .footer-grid{display:block;text-align:left}
    .footer-grid > p{margin-top:10px}
}