:root{--bg:#0b1220;--bg2:#0f1a2e;--card:#111d33;--card2:#152238;--green:#00e0a4;--green-d:#00c492;--blue:#38bdf8;--text:#e8eef7;--muted:#94a3b8;--border:#1e2a44;--amber:#fbbf24;--red:#f87171;--radius:16px;--shadow:0 10px 40px rgba(0,0,0,.35)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:var(--green);text-decoration:none;transition:color .2s}
a:hover{color:var(--green-d)}
img{max-width:100%;display:block}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-alt{background:var(--bg2)}
.section-head{text-align:center;max-width:760px;margin:0 auto 56px}
.section-head .eyebrow{display:inline-block;color:var(--green);font-weight:700;letter-spacing:.08em;text-transform:uppercase;font-size:13px;margin-bottom:14px}
.section-head h2{font-size:clamp(28px,4vw,40px);font-weight:800;line-height:1.25;margin-bottom:16px;color:#fff}
.section-head p{color:var(--muted);font-size:17px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 30px;border-radius:12px;font-weight:700;font-size:16px;cursor:pointer;border:0;transition:transform .15s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:linear-gradient(135deg,var(--green),#00b894);color:#04150f;box-shadow:0 8px 24px rgba(0,224,164,.28)}
.btn-primary:hover{box-shadow:0 12px 30px rgba(0,224,164,.4);color:#04150f}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--border)}
.btn-ghost:hover{border-color:var(--green);color:var(--green)}
.btn-light{background:#fff;color:#0b1220}
.tag{display:inline-block;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;background:rgba(0,224,164,.12);color:var(--green)}
/* 导航 */
.nav{position:sticky;top:0;z-index:1000;background:rgba(11,18,32,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:#fff}
.logo img{height:34px;width:34px;border-radius:8px}
.logo span b{color:var(--green)}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{color:var(--muted);padding:8px 14px;border-radius:8px;font-weight:600;font-size:15px}
.nav-links a:hover{color:var(--text);background:var(--card2)}
.nav-links a.active{color:var(--green)}
.nav-cta{margin-left:8px}
/* Hero */
.hero{position:relative;overflow:hidden;background:radial-gradient(1200px 600px at 80% -10%,rgba(0,224,164,.14),transparent 60%),radial-gradient(900px 500px at 10% 110%,rgba(56,189,248,.12),transparent 55%),var(--bg)}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:72px 0 88px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:999px;background:rgba(0,224,164,.1);border:1px solid rgba(0,224,164,.25);color:var(--green);font-size:13px;font-weight:600;margin-bottom:20px}
.hero h1{font-size:clamp(34px,5vw,54px);font-weight:800;line-height:1.15;color:#fff;margin-bottom:20px}
.hero h1 em{font-style:normal;background:linear-gradient(135deg,var(--green),var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{color:var(--muted);font-size:18px;margin-bottom:28px;max-width:520px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:32px}
.hero-stats{display:flex;gap:32px;flex-wrap:wrap}
.hero-stat b{display:block;font-size:26px;font-weight:800;color:#fff}
.hero-stat span{color:var(--muted);font-size:13px}
/* 客户端模拟器 */
.sim-wrap{position:relative}
.sim{background:linear-gradient(180deg,#1b2a4a,#111d33);border:1px solid var(--border);border-radius:20px;box-shadow:var(--shadow);overflow:hidden}
.sim-bar{display:flex;align-items:center;gap:8px;padding:14px 18px;border-bottom:1px solid var(--border);background:rgba(255,255,255,.02)}
.sim-dot{width:12px;height:12px;border-radius:50%}
.sim-dot.r{background:#ff5f57}.sim-dot.y{background:#febc2e}.sim-dot.g{background:#28c840}
.sim-title{margin-left:8px;color:var(--muted);font-size:13px}
.sim-body{padding:26px}
.sim-status{display:flex;align-items:center;justify-content:space-between;background:var(--card2);border:1px solid var(--border);border-radius:14px;padding:18px 20px;margin-bottom:20px}
.sim-status .loc{display:flex;align-items:center;gap:12px}
.sim-flag{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,#2563eb,#1d4ed8);display:flex;align-items:center;justify-content:center;font-size:20px}
.sim-status b{color:#fff;font-size:16px}
.sim-status small{color:var(--muted);display:block}
.sim-toggle{width:64px;height:64px;border-radius:50%;background:linear-gradient(135deg,var(--green),#00b894);border:none;display:flex;align-items:center;justify-content:center;font-size:26px;box-shadow:0 0 0 10px rgba(0,224,164,.12);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(0,224,164,.4)}70%{box-shadow:0 0 0 16px rgba(0,224,164,0)}100%{box-shadow:0 0 0 0 rgba(0,224,164,0)}}
.sim-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:20px}
.sim-metric{background:var(--card2);border:1px solid var(--border);border-radius:12px;padding:14px;text-align:center}
.sim-metric b{display:block;color:#fff;font-size:18px}
.sim-metric span{color:var(--muted);font-size:12px}
.sim-servers{display:flex;flex-direction:column;gap:10px}
.sim-server{display:flex;align-items:center;justify-content:space-between;background:var(--card2);border:1px solid var(--border);border-radius:10px;padding:12px 16px}
.sim-server .left{display:flex;align-items:center;gap:10px}
.sim-server .flag{width:28px;height:28px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:14px}
.sim-server b{color:var(--text);font-size:14px}
.sim-server span{color:var(--muted);font-size:12px}
.ping{color:var(--green);font-weight:700;font-size:13px}
/* 公告 */
.notice{background:linear-gradient(135deg,rgba(0,224,164,.08),rgba(56,189,248,.08));border:1px solid var(--border);border-radius:14px;padding:18px 24px;display:flex;align-items:center;gap:16px}
.notice .badge{flex-shrink:0;background:var(--green);color:#04150f;font-weight:700;font-size:12px;padding:4px 12px;border-radius:6px}
.notice p{color:var(--text);font-size:15px}
/* 核心功能 */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:30px;transition:transform .2s,border-color .2s}
.feature-card:hover{transform:translateY(-4px);border-color:var(--green)}
.feature-icon{width:56px;height:56px;border-radius:14px;background:rgba(0,224,164,.12);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:20px}
.feature-card h3{color:#fff;font-size:20px;margin-bottom:12px}
.feature-card p{color:var(--muted);font-size:15px}
/* 对比 */
.compare-table{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;overflow-x:auto}
.compare-table table{width:100%;border-collapse:collapse;min-width:640px}
.compare-table th,.compare-table td{padding:18px 22px;text-align:left;border-bottom:1px solid var(--border)}
.compare-table th{color:#fff;font-size:15px;background:var(--card2)}
.compare-table td{color:var(--muted);font-size:15px}
.compare-table .brand{color:#fff;font-weight:700}
.compare-table .yes{color:var(--green);font-weight:700}
.compare-table .no{color:var(--red)}
.compare-table tr:last-child td{border-bottom:0}
.compare-highlight{background:rgba(0,224,164,.05)}
/* 新闻 Tab */
.tabs{display:flex;gap:8px;justify-content:center;margin-bottom:32px;flex-wrap:wrap}
.tab{padding:10px 22px;border-radius:999px;border:1px solid var(--border);background:transparent;color:var(--muted);font-weight:600;font-size:14px;cursor:pointer}
.tab.active{background:var(--green);color:#04150f;border-color:var(--green)}
.tabpanels .panel{display:none}
.tabpanels .panel:first-child{display:grid}
.tabpanels:has(.panel:target) .panel:first-child{display:none}
.tabpanels .panel:target{display:grid}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:transform .2s}
.news-card:hover{transform:translateY(-4px)}
.news-card img{width:100%;height:180px;object-fit:cover}
.news-card .body{padding:22px}
.news-card .meta{display:flex;gap:12px;color:var(--muted);font-size:12px;margin-bottom:10px}
.news-card h3{color:#fff;font-size:17px;line-height:1.4;margin-bottom:8px}
.news-card p{color:var(--muted);font-size:14px}
/* 评论 */
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px}
.review-stars{color:var(--amber);margin-bottom:14px;font-size:15px}
.review-card p{color:var(--text);font-size:15px;margin-bottom:18px}
.review-user{display:flex;align-items:center;gap:12px}
.review-avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--green),var(--blue));display:flex;align-items:center;justify-content:center;font-weight:700;color:#04150f}
.review-user b{color:#fff;font-size:14px;display:block}
.review-user span{color:var(--muted);font-size:12px}
/* 下载 */
.download-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.dl-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px 20px;text-align:center;transition:transform .2s,border-color .2s}
.dl-card:hover{transform:translateY(-4px);border-color:var(--green)}
.dl-icon{width:64px;height:64px;border-radius:16px;background:rgba(0,224,164,.12);display:flex;align-items:center;justify-content:center;font-size:30px;margin:0 auto 16px}
.dl-card h3{color:#fff;font-size:17px;margin-bottom:6px}
.dl-card span{color:var(--muted);font-size:13px;display:block;margin-bottom:16px}
/* 信任背书 */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.trust-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px;text-align:center}
.trust-item .num{font-size:32px;font-weight:800;color:var(--green);display:block;margin-bottom:6px}
.trust-item p{color:var(--muted);font-size:14px}
/* 应用场景 */
.scenarios-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scenario-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:30px}
.scenario-icon{font-size:32px;margin-bottom:16px}
.scenario-card h3{color:#fff;font-size:19px;margin-bottom:10px}
.scenario-card p{color:var(--muted);font-size:15px}
/* FAQ */
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:14px;overflow:hidden}
.faq-q{padding:20px 24px;font-weight:700;color:#fff;font-size:17px;cursor:pointer;display:flex;justify-content:space-between;align-items:center}
.faq-q .arrow{color:var(--green);transition:transform .2s}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.faq-a{padding:0 24px 22px;color:var(--muted);font-size:15px}
.faq-a ol{padding-left:20px;list-style:decimal}
.faq-a ol li{margin-bottom:8px}
details.faq-item summary.faq-q{list-style:none;cursor:pointer}
details.faq-item summary.faq-q::-webkit-details-marker{display:none}
details.faq-item[open] .faq-q .arrow{transform:rotate(180deg)}
.faq-cat{display:inline-block;margin-bottom:10px;font-size:12px;font-weight:700;color:var(--green);background:rgba(0,224,164,.1);padding:3px 10px;border-radius:6px}
/* CTA */
.cta{background:linear-gradient(135deg,#04150f,#0b1220);border:1px solid rgba(0,224,164,.3);border-radius:24px;padding:64px 40px;text-align:center}
.cta h2{color:#fff;font-size:clamp(28px,4vw,38px);font-weight:800;margin-bottom:14px}
.cta p{color:var(--muted);font-size:17px;margin-bottom:28px;max-width:560px;margin-left:auto;margin-right:auto}
/* 页脚 */
.footer{background:var(--bg2);border-top:1px solid var(--border);padding:64px 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:16px;max-width:300px}
.footer h4{color:#fff;font-size:16px;margin-bottom:18px}
.footer ul li{margin-bottom:10px}
.footer ul a{color:var(--muted);font-size:14px}
.footer ul a:hover{color:var(--green)}
.friendlinks{display:flex;gap:18px;flex-wrap:wrap;padding:20px 0;border-top:1px solid var(--border);margin-bottom:20px}
.friendlinks a{color:var(--muted);font-size:14px;border:1px solid var(--border);padding:6px 14px;border-radius:999px}
.friendlinks a:hover{color:var(--green);border-color:var(--green)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;border-top:1px solid var(--border);padding-top:20px;color:var(--muted);font-size:13px}
/* 面包屑 */
.breadcrumb{padding:22px 0;color:var(--muted);font-size:14px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--green)}
.breadcrumb .sep{margin:0 8px;color:var(--border)}
.breadcrumb .current{color:var(--green)}
/* 页面头 */
.page-head{background:radial-gradient(900px 400px at 70% -20%,rgba(0,224,164,.14),transparent 60%),var(--bg);padding:64px 0 40px;text-align:center}
.page-head h1{font-size:clamp(30px,5vw,46px);font-weight:800;color:#fff;margin-bottom:14px}
.page-head p{color:var(--muted);font-size:18px;max-width:680px;margin:0 auto}
/* 文章 */
.article-layout{display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:start}
.article-main{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:40px}
.article-main h1{font-size:clamp(26px,4vw,34px);font-weight:800;color:#fff;line-height:1.3;margin-bottom:16px}
.article-meta{display:flex;gap:16px;color:var(--muted);font-size:13px;margin-bottom:24px;flex-wrap:wrap}
.article-cover{border-radius:14px;overflow:hidden;margin-bottom:24px}
.article-main .lead{font-size:18px;color:var(--text);background:var(--bg2);border-left:3px solid var(--green);padding:16px 20px;border-radius:0 12px 12px 0;margin-bottom:24px}
.article-main h2{color:#fff;font-size:24px;margin:32px 0 14px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.article-main h3{color:var(--text);font-size:19px;margin:24px 0 10px}
.article-main p{color:var(--muted);font-size:16px;margin-bottom:18px}
.article-main ul{list-style:disc;padding-left:22px;margin-bottom:18px}
.article-main ul li{color:var(--muted);margin-bottom:8px}
.article-main blockquote{border-left:3px solid var(--green);padding:14px 20px;background:var(--bg2);border-radius:0 10px 10px 0;color:var(--text);margin:20px 0}
.article-fig{text-align:center;margin:24px 0}
.article-fig img{border-radius:12px;width:100%}
.article-fig figcaption{color:var(--muted);font-size:13px;margin-top:10px}
.article-nav{display:flex;justify-content:space-between;gap:16px;margin-top:32px;padding-top:24px;border-top:1px solid var(--border)}
.article-nav a{color:var(--muted);font-size:14px}
.article-nav a:hover{color:var(--green)}
/* 侧栏 */
.sidebar{position:sticky;top:90px}
.side-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:20px}
.side-card h4{color:#fff;font-size:16px;margin-bottom:16px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.side-list li{margin-bottom:12px}
.side-list a{color:var(--muted);font-size:14px;line-height:1.5}
.side-list a:hover{color:var(--green)}
.cat-list li{margin-bottom:10px}
.cat-list a{display:flex;justify-content:space-between;color:var(--muted);font-size:14px}
.cat-list a:hover{color:var(--green)}
.cat-list span{color:var(--border)}
/* 评论列表 */
.comment-list{margin-top:16px}
.comment{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--border)}
.comment:last-child{border-bottom:0}
.comment .avatar{width:38px;height:38px;border-radius:50%;flex-shrink:0;background:linear-gradient(135deg,var(--green),var(--blue));display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:#04150f}
.comment b{color:#fff;font-size:14px;display:block}
.comment small{color:var(--muted);font-size:12px}
.comment p{color:var(--muted);font-size:14px;margin-top:4px}
/* 相关阅读 */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px}
/* sitemap */
.sitemap-list li{margin-bottom:12px}
.sitemap-list a{color:var(--muted);font-size:15px}
.sitemap-list a:hover{color:var(--green)}
.sitemap-col{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
/* 404 */
.notfound{min-height:60vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:80px 24px}
.notfound .code{font-size:120px;font-weight:800;background:linear-gradient(135deg,var(--green),var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.notfound h1{color:#fff;font-size:28px;margin:20px 0 12px}
.notfound p{color:var(--muted);font-size:16px;margin-bottom:28px}
.countdown{color:var(--green);font-weight:700}
/* 响应式 */
@media(max-width:1024px){.hero-inner{grid-template-columns:1fr;gap:40px}.features-grid,.news-grid,.reviews-grid,.scenarios-grid{grid-template-columns:repeat(2,1fr)}.download-grid{grid-template-columns:repeat(3,1fr)}.trust-grid{grid-template-columns:repeat(2,1fr)}.article-layout{grid-template-columns:1fr}.sidebar{position:static}.footer-grid{grid-template-columns:1fr 1fr}.sitemap-col{grid-template-columns:1fr}}
@media(max-width:640px){.nav-links{display:none}.features-grid,.news-grid,.reviews-grid,.scenarios-grid,.download-grid,.trust-grid,.related-grid{grid-template-columns:1fr}.sim-metrics{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.hero-stats{gap:20px}}