:root{--bg:#070b14;--bg2:#0b1322;--card:#101a2e;--card2:#0e1728;--accent:#22d3ee;--accent2:#6366f1;--green:#34d399;--amber:#fbbf24;--text:#e6edf7;--muted:#8b98ad;--line:#1e2a42;--radius:16px;--serif:"Noto Serif SC","Source Han Serif SC",Georgia,serif;--sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--bg);color:var(--text);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;line-height:1.3}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.5px;background:rgba(34,211,238,.12);color:var(--accent);border:1px solid rgba(34,211,238,.25)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;border-radius:12px;font-size:15px;font-weight:600;cursor:pointer;transition:.25s;border:none;font-family:var(--sans)}
.btn-primary{background:linear-gradient(135deg,#22d3ee,#6366f1);color:#04121a;box-shadow:0 8px 24px rgba(34,211,238,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(34,211,238,.4)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.section{padding:88px 0}
.section-head{text-align:center;max-width:680px;margin:0 auto 56px}
.section-head .badge{margin-bottom:16px}
.section-head h2{font-size:38px;margin-bottom:16px}
.section-head p{color:var(--muted);font-size:17px}
.grid{display:grid;gap:24px}
.muted{color:var(--muted)}
header.site-nav{position:sticky;top:0;z-index:100;background:rgba(7,11,20,.85);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.site-nav .container{display:flex;align-items:center;justify-content:space-between;height:72px}
.nav-brand{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-size:20px;font-weight:700}
.nav-brand img{width:38px;height:38px;border-radius:9px}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a{font-size:15px;color:var(--muted);transition:.2s}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-links a.active{color:var(--accent)}
.nav-cta{display:flex;align-items:center;gap:12px}
.hero{position:relative;overflow:hidden;padding:110px 0 80px;background:radial-gradient(ellipse at 50% -10%,rgba(99,102,241,.25),transparent 60%),radial-gradient(ellipse at 80% 20%,rgba(34,211,238,.12),transparent 50%)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:54px;margin:20px 0 18px;letter-spacing:.5px}
.hero h1 .grad{background:linear-gradient(135deg,#22d3ee,#818cf8);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{color:var(--muted);font-size:18px;max-width:520px;margin-bottom:32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:36px;margin-top:40px}
.hero-stats .stat b{font-size:28px;font-family:var(--serif);display:block;color:var(--accent)}
.hero-stats .stat span{font-size:13px;color:var(--muted)}
.mockup{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:0 24px 60px rgba(0,0,0,.5)}
.mockup-bar{display:flex;align-items:center;gap:8px;margin-bottom:18px}
.mockup-bar i{width:12px;height:12px;border-radius:50%;display:block}
.mockup-bar i:nth-child(1){background:#f87171}.mockup-bar i:nth-child(2){background:#fbbf24}.mockup-bar i:nth-child(3){background:#34d399}
.mockup-bar span{margin-left:auto;font-size:12px;color:var(--muted)}
.mockup-status{display:flex;align-items:center;gap:12px;background:var(--card2);border-radius:14px;padding:16px;margin-bottom:16px}
.mockup-status .dot{width:10px;height:10px;border-radius:50%;background:var(--green);box-shadow:0 0 12px var(--green)}
.mockup-status b{font-size:15px}
.mockup-status span{margin-left:auto;font-size:13px;color:var(--green)}
.mockup-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.mockup-node{background:var(--card2);border-radius:12px;padding:14px;border:1px solid var(--line)}
.mockup-node b{font-size:13px;display:block;margin-bottom:4px}
.mockup-node span{font-size:12px;color:var(--muted)}
.features-grid{grid-template-columns:repeat(3,1fr)}
.feature-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:32px;transition:.3s}
.feature-card:hover{transform:translateY(-6px);border-color:rgba(34,211,238,.4);box-shadow:0 16px 40px rgba(0,0,0,.4)}
.feature-card .icon{width:52px;height:52px;border-radius:13px;background:rgba(34,211,238,.1);display:flex;align-items:center;justify-content:center;margin-bottom:20px;color:var(--accent)}
.feature-card h3{font-size:20px;margin-bottom:12px}
.feature-card p{color:var(--muted);font-size:15px}
.notice{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;display:flex;gap:16px;align-items:flex-start;margin-bottom:16px}
.notice .icon{color:var(--amber);flex-shrink:0}
.notice h3{font-size:17px;margin-bottom:6px}
.notice p{color:var(--muted);font-size:14px}
.notice .date{font-size:12px;color:var(--muted);white-space:nowrap}
.trust-grid{grid-template-columns:repeat(4,1fr)}
.trust-card{text-align:center;padding:32px 20px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius)}
.trust-card b{font-size:34px;font-family:var(--serif);display:block;background:linear-gradient(135deg,#22d3ee,#818cf8);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:8px}
.trust-card span{color:var(--muted);font-size:14px}
.news-tabs{display:flex;justify-content:center;gap:12px;margin-bottom:40px;flex-wrap:wrap}
.news-tab{padding:10px 22px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--muted);cursor:pointer;font-size:14px;transition:.2s;font-family:var(--sans)}
.news-tab.active{background:linear-gradient(135deg,#22d3ee,#6366f1);color:#04121a;border-color:transparent}
.news-grid{grid-template-columns:repeat(3,1fr)}
.news-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s}
.news-card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.4)}
.news-card img{width:100%;height:170px;object-fit:cover}
.news-card .body{padding:22px}
.news-card .tag{font-size:12px;color:var(--accent);font-weight:600;margin-bottom:8px;display:block}
.news-card h3{font-size:17px;margin-bottom:10px;line-height:1.5}
.news-card h3 a:hover{color:var(--accent)}
.news-card p{color:var(--muted);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.compare-wrap{overflow-x:auto}
.compare{width:100%;border-collapse:separate;border-spacing:0;min-width:760px}
.compare th,.compare td{padding:18px 20px;text-align:center;border-bottom:1px solid var(--line)}
.compare th{background:var(--card);font-family:var(--serif);font-size:16px}
.compare th:first-child,.compare td:first-child{text-align:left}
.compare tbody tr:hover td{background:var(--card2)}
.compare .yes{color:var(--green);font-weight:700}
.compare .no{color:var(--muted)}
.compare .hl{color:var(--accent);font-weight:700}
.download-grid{grid-template-columns:repeat(5,1fr)}
.dl-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px 20px;text-align:center;transition:.3s;display:block}
.dl-card:hover{transform:translateY(-6px);border-color:rgba(34,211,238,.4)}
.dl-card .icon{width:56px;height:56px;border-radius:14px;background:rgba(34,211,238,.1);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;color:var(--accent)}
.dl-card b{font-size:16px;display:block;margin-bottom:6px}
.dl-card span{font-size:12px;color:var(--muted)}
.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden}
.faq-q{width:100%;text-align:left;background:transparent;border:none;color:var(--text);font-size:17px;font-weight:600;padding:22px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;font-family:var(--sans)}
.faq-q .arrow{transition:.3s;color:var(--accent);flex-shrink:0}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-a-inner{padding:0 24px 22px;color:var(--muted);font-size:15px}
.faq-a-inner ol{padding-left:20px;margin-top:8px}
.faq-a-inner ol li{margin-bottom:8px}
.cta{background:linear-gradient(135deg,rgba(34,211,238,.12),rgba(99,102,241,.12));border:1px solid var(--line);border-radius:24px;padding:64px;text-align:center}
.cta h2{font-size:36px;margin-bottom:14px}
.cta p{color:var(--muted);margin-bottom:30px;font-size:17px}
footer.site-footer{background:var(--bg2);border-top:1px solid var(--line);padding:56px 0 32px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand p{color:var(--muted);font-size:14px;margin-top:14px;max-width:320px}
.footer-col h4{font-size:15px;margin-bottom:16px}
.footer-col a{display:block;color:var(--muted);font-size:14px;margin-bottom:10px;transition:.2s}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--muted);flex-wrap:wrap;gap:12px}
.breadcrumb{padding:22px 0;font-size:13px;color:var(--muted);border-bottom:1px solid var(--line);margin-bottom:40px}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--line)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb li[aria-current]{color:var(--accent);font-weight:700}
.news-detail{max-width:820px;margin:0 auto}
.news-detail h1{font-size:38px;margin:16px 0 18px}
.news-detail .meta{display:flex;gap:20px;color:var(--muted);font-size:14px;margin-bottom:32px;flex-wrap:wrap}
.news-detail .cover{border-radius:18px;margin-bottom:36px}
.news-detail .content{font-size:16.5px;color:#cdd7e6;line-height:1.9}
.news-detail .content h2{font-size:26px;margin:36px 0 16px;color:var(--text)}
.news-detail .content p{margin-bottom:20px}
.news-detail .content img{border-radius:14px;margin:24px 0}
.news-detail .content blockquote{border-left:3px solid var(--accent);padding:14px 20px;background:var(--card);border-radius:0 12px 12px 0;margin:24px 0;color:var(--muted)}
.news-nav{display:flex;justify-content:space-between;gap:16px;margin-top:48px;padding-top:24px;border-top:1px solid var(--line)}
.news-nav a{font-size:14px;color:var(--muted);max-width:45%}
.news-nav a:hover{color:var(--accent)}
.back-link{display:inline-block;margin-top:24px;color:var(--accent);font-size:14px}
.sitemap-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.sitemap-cols h3{font-size:18px;margin-bottom:16px;color:var(--accent)}
.sitemap-cols a{display:block;color:var(--muted);font-size:15px;margin-bottom:10px;padding:8px 12px;border-radius:8px;transition:.2s}
.sitemap-cols a:hover{background:var(--card);color:var(--accent)}
.error-page{text-align:center;padding:120px 0}
.error-page .code{font-size:120px;font-family:var(--serif);font-weight:700;background:linear-gradient(135deg,#22d3ee,#818cf8);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.error-page h2{font-size:28px;margin:20px 0 12px}
.error-page p{color:var(--muted);margin-bottom:32px}
@media(max-width:960px){.hero-grid{grid-template-columns:1fr}.hero h1{font-size:40px}.features-grid,.news-grid,.trust-grid{grid-template-columns:repeat(2,1fr)}.download-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.sitemap-cols{grid-template-columns:1fr}}
@media(max-width:600px){.nav-links{display:none}.features-grid,.news-grid,.trust-grid,.download-grid{grid-template-columns:1fr}.section{padding:56px 0}.hero h1{font-size:32px}.section-head h2{font-size:28px}.cta{padding:40px 24px}.footer-grid{grid-template-columns:1fr}.news-nav{flex-direction:column}}