:root{--brand:#0ea5e9;--brand2:#6366f1;--accent:#22d3ee;--ink:#0b1220;--ink2:#1e293b;--muted:#64748b;--bg:#f5f8fc;--card:#ffffff;--line:#e2e8f0;--ok:#10b981;--warn:#f59e0b;--grad:linear-gradient(120deg,#0ea5e9 0%,#6366f1 100%)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink2);background:var(--bg);line-height:1.7;font-size:16px}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand2)}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:0;top:0;background:var(--ink);color:#fff;padding:8px 14px;z-index:9999}
/* 顶部导航 */
.topbar{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;color:var(--ink)}
.brand img{width:34px;height:34px;border-radius:8px}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{color:var(--ink2);font-weight:500;font-size:15px}
.nav-links a:hover{color:var(--brand)}
.nav-cta{display:inline-flex;align-items:center;gap:6px;background:var(--grad);color:#fff!important;padding:10px 20px;border-radius:10px;font-weight:700}
/* Hero */
.hero{background:radial-gradient(1200px 600px at 80% -10%,#1e3a8a55,transparent),linear-gradient(160deg,#0b1220 0%,#0f1f3d 55%,#112a52 100%);color:#fff;padding:70px 0 60px;position:relative;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.hero h1{font-size:44px;line-height:1.2;font-weight:800;margin:14px 0 18px}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,#22d3ee,#818cf8);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero .sub{color:#cbd5e1;font-size:18px;max-width:560px}
.hero .actions{display:flex;gap:14px;margin:26px 0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:12px;font-weight:700;font-size:16px;transition:.2s}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 24px #0ea5e955}
.btn-primary:hover{transform:translateY(-2px);color:#fff}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid #ffffff33}
.btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff}
.hero-meta{display:flex;gap:22px;color:#94a3b8;font-size:13px}
.hero-meta b{display:block;color:#fff;font-size:20px}
/* 模拟器 */
.sim{background:#0a0f1c;border:1px solid #ffffff1f;border-radius:18px;box-shadow:0 30px 80px #00000066;overflow:hidden}
.sim-head{display:flex;align-items:center;gap:8px;padding:12px 16px;background:#111827;border-bottom:1px solid #ffffff14}
.dot{width:11px;height:11px;border-radius:50%}
.sim-url{flex:1;background:#1f2937;border-radius:8px;padding:5px 12px;font-size:12px;color:#9ca3af;text-align:center}
.sim-body{padding:20px}
.sim-tab{display:flex;gap:10px;margin-bottom:16px}
.sim-tab span{background:#1f2937;color:#cbd5e1;padding:6px 14px;border-radius:8px;font-size:13px}
.sim-tab span.on{background:var(--grad);color:#fff}
.sim-row{display:flex;align-items:center;gap:12px;background:#111827;border:1px solid #ffffff12;border-radius:12px;padding:14px;margin-bottom:12px}
.sim-flag{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,#22d3ee,#6366f1);display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff}
.sim-info{flex:1}
.sim-info b{display:block;color:#fff;font-size:15px}
.sim-info small{color:#64748b}
.sim-ping{color:#34d399;font-weight:700;font-size:14px}
.sim-btn{width:100%;background:var(--grad);color:#fff;text-align:center;padding:14px;border-radius:12px;font-weight:800;font-size:16px}
.sim-stat{display:flex;justify-content:space-between;color:#94a3b8;font-size:13px;margin-top:14px;padding-top:14px;border-top:1px solid #ffffff14}
/* 通用 section */
section{padding:64px 0}
.sec-head{text-align:center;max-width:720px;margin:0 auto 42px}
.sec-head .kicker{display:inline-block;color:var(--brand);font-weight:700;font-size:13px;letter-spacing:1px;text-transform:uppercase}
.sec-head h2{font-size:34px;font-weight:800;color:var(--ink);margin:10px 0 12px}
.sec-head p{color:var(--muted);font-size:16px}
/* 公告 */
.notice{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 22px;display:flex;align-items:center;gap:14px;box-shadow:0 4px 16px #0000000d}
.notice .tag{background:#fef3c7;color:#b45309;padding:4px 12px;border-radius:8px;font-weight:700;font-size:13px;white-space:nowrap}
.notice p{color:var(--ink2);font-size:15px}
/* 卡片网格 */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px;transition:.25s}
.card:hover{transform:translateY(-4px);box-shadow:0 16px 40px #00000014;border-color:#bfdbfe}
.card .ico{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,#e0f2fe,#e0e7ff);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:16px}
.card h3{font-size:19px;font-weight:700;color:var(--ink);margin-bottom:8px}
.card p{color:var(--muted);font-size:15px}
/* 卖点 */
.sell{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.sell .item{background:var(--grad);color:#fff;border-radius:18px;padding:30px;position:relative;overflow:hidden}
.sell .item .num{position:absolute;right:14px;top:6px;font-size:72px;font-weight:900;opacity:.14}
.sell .item h3{font-size:21px;font-weight:800;margin-bottom:10px}
.sell .item p{color:#dbeafe;font-size:15px}
/* 对比表 */
.compare{overflow-x:auto;background:var(--card);border:1px solid var(--line);border-radius:16px}
.compare table{width:100%;border-collapse:collapse;min-width:640px}
.compare th,.compare td{padding:16px 18px;text-align:center;border-bottom:1px solid var(--line);font-size:15px}
.compare th{background:#f8fafc;color:var(--ink);font-weight:700}
.compare th:first-child,.compare td:first-child{text-align:left;font-weight:600;color:var(--ink)}
.compare tr:last-child td{border-bottom:none}
.compare .yes{color:var(--ok);font-weight:700}
.compare .no{color:#cbd5e1}
.compare .hl{background:#f0f9ff}
/* Tabs 新闻 */
.tabs{display:flex;gap:10px;justify-content:center;margin-bottom:28px}
.tabs a{padding:10px 20px;border-radius:10px;background:var(--card);border:1px solid var(--line);color:var(--ink2);font-weight:600;font-size:14px}
.tabs a.on{background:var(--grad);color:#fff;border-color:transparent}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.25s;display:block}
.news-card:hover{transform:translateY(-4px);box-shadow:0 16px 40px #00000014}
.news-card .ph{height:160px;background:linear-gradient(135deg,#0ea5e9,#6366f1);display:flex;align-items:center;justify-content:center;font-size:44px}
.news-card .bd{padding:20px}
.news-card .cat{color:var(--brand);font-size:12px;font-weight:700;letter-spacing:.5px}
.news-card h3{color:var(--ink);font-size:17px;font-weight:700;margin:8px 0;line-height:1.4}
.news-card p{color:var(--muted);font-size:14px;margin-bottom:10px}
.news-card time{color:#94a3b8;font-size:12px}
/* 评论 */
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.review{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px}
.review .stars{color:#f59e0b;letter-spacing:2px;margin-bottom:10px}
.review p{color:var(--ink2);font-size:15px;margin-bottom:14px}
.review .who{display:flex;align-items:center;gap:10px}
.review .av{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,#22d3ee,#6366f1);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}
.review .who b{display:block;color:var(--ink);font-size:14px}
.review .who small{color:var(--muted)}
/* 下载 */
.dl{background:var(--ink);color:#fff}
.dl .sec-head h2{color:#fff}
.dl .sec-head p{color:#94a3b8}
.dl-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.dl-item{background:#111827;border:1px solid #ffffff14;border-radius:16px;padding:26px;text-align:center;transition:.25s}
.dl-item:hover{transform:translateY(-4px);border-color:#0ea5e9}
.dl-item .os{font-size:40px;margin-bottom:12px}
.dl-item b{display:block;color:#fff;font-size:17px;margin-bottom:6px}
.dl-item small{color:#94a3b8;display:block;margin-bottom:16px;font-size:13px}
.dl-item .btn{width:100%;padding:11px}
/* 信任背书 */
.trust{background:var(--card)}
.trust-list{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}
.trust-list .item{background:#f8fafc;border:1px solid var(--line);border-radius:12px;padding:14px 22px;display:flex;align-items:center;gap:10px;font-weight:600;color:var(--ink);font-size:14px}
/* 场景 */
.scene{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.scene .item{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px;text-align:center}
.scene .item .em{font-size:34px;margin-bottom:10px}
.scene .item h3{font-size:16px;color:var(--ink);font-weight:700;margin-bottom:6px}
.scene .item p{color:var(--muted);font-size:13px}
/* FAQ */
.faq{max-width:860px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden}
.faq-item summary{padding:20px 24px;font-weight:700;color:var(--ink);cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;font-size:16px}
.faq-item summary::after{content:"+";font-size:22px;color:var(--brand)}
.faq-item[open] summary::after{content:"–"}
.faq-item .ans{padding:0 24px 22px;color:var(--ink2);font-size:15px}
.faq-item .ans ol,.faq-item .ans ul{padding-left:22px;margin:10px 0}
.faq-item .ans li{margin-bottom:8px}
/* CTA */
.cta{background:var(--grad);border-radius:24px;padding:56px;text-align:center;color:#fff}
.cta h2{font-size:32px;font-weight:800;margin-bottom:12px}
.cta p{color:#dbeafe;margin-bottom:26px;font-size:17px}
.cta .btn{background:#fff;color:var(--brand2)}
/* 页脚 */
footer{background:var(--ink);color:#94a3b8;padding:56px 0 0}
.foot{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;padding-bottom:36px}
.foot h4{color:#fff;font-size:15px;margin-bottom:16px}
.foot a{display:block;color:#94a3b8;margin-bottom:10px;font-size:14px}
.foot a:hover{color:#22d3ee}
.foot .brand{color:#fff}
.foot .brand p{color:#94a3b8;font-size:13px;margin-top:8px;font-weight:400}
.foot-links{border-top:1px solid #ffffff14;padding:20px 0;font-size:13px;color:#64748b}
.foot-links a{color:#64748b;margin-right:14px}
.foot-links a:hover{color:#22d3ee}
.copy{text-align:center;padding:20px 0;font-size:13px;color:#475569;border-top:1px solid #ffffff0d}
/* 面包屑 */
.crumb{background:#fff;border-bottom:1px solid var(--line);padding:14px 0;font-size:14px;color:var(--muted)}
.crumb a{color:var(--brand)}
/* 文章详情 */
.article{display:grid;grid-template-columns:1fr 300px;gap:36px;align-items:start}
.article .main{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:40px}
.article h1{font-size:32px;font-weight:800;color:var(--ink);line-height:1.3;margin:16px 0}
.article .meta{color:var(--muted);font-size:14px;margin-bottom:24px}
.article .body h2{font-size:24px;font-weight:800;color:var(--ink);margin:32px 0 14px;padding-top:12px;border-top:2px solid var(--line)}
.article .body p{color:var(--ink2);margin-bottom:18px;font-size:16px}
.article .body h3{font-size:19px;font-weight:700;color:var(--ink);margin:24px 0 10px}
.article .body table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14px}
.article .body th,.article .body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article .body th{background:#f8fafc;color:var(--ink)}
.article .body blockquote{border-left:4px solid var(--brand);background:#f0f9ff;padding:14px 18px;margin:18px 0;color:var(--ink2);border-radius:0 10px 10px 0}
.article .body img{border-radius:12px;margin:18px 0}
.article .body ul,.article .body ol{padding-left:24px;margin:14px 0}
.article .body li{margin-bottom:8px}
.toc{background:#f8fafc;border:1px solid var(--line);border-radius:12px;padding:20px;margin-bottom:24px}
.toc b{color:var(--ink);display:block;margin-bottom:10px}
.toc a{display:block;color:var(--brand);font-size:14px;margin-bottom:6px}
/* 侧栏 */
.side .box{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;margin-bottom:22px}
.side .box h3{font-size:17px;color:var(--ink);font-weight:700;margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid var(--line)}
.side .box a{display:block;font-size:14px;margin-bottom:10px}
.side .box .cat-tag{display:inline-block;background:#f1f5f9;color:var(--ink2);padding:4px 12px;border-radius:8px;font-size:13px;margin:0 6px 8px 0}
/* 评论块 */
.cmt{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px;margin-top:28px}
.cmt h3{font-size:20px;color:var(--ink);font-weight:800;margin-bottom:18px}
.cmt .c{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.cmt .c:last-child{border-bottom:none}
.cmt .av{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#22d3ee,#6366f1);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;flex-shrink:0}
.cmt .c b{color:var(--ink);font-size:14px}
.cmt .c small{color:var(--muted);margin-left:8px}
.cmt .c p{color:var(--ink2);font-size:14px;margin-top:4px}
/* 404 */
.err{text-align:center;padding:100px 20px}
.err h1{font-size:90px;font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.err h2{font-size:28px;color:var(--ink);margin:10px 0 14px}
.err p{color:var(--muted);margin-bottom:24px}
/* 分页/导航 */
.pager{display:flex;justify-content:space-between;gap:14px;margin-top:28px}
.pager a{flex:1;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;font-size:14px;color:var(--ink2)}
.pager a:hover{border-color:var(--brand)}
/* 响应式 */
@media(max-width:1024px){.hero .wrap{grid-template-columns:1fr}.sim{max-width:520px}.grid-3,.grid-2,.grid-4,.sell,.news-grid,.reviews,.dl-grid,.scene{grid-template-columns:repeat(2,1fr)}.article{grid-template-columns:1fr}.foot{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.nav-links{display:none}.grid-3,.grid-2,.grid-4,.sell,.news-grid,.reviews,.dl-grid,.scene{grid-template-columns:1fr}.hero h1{font-size:32px}.sec-head h2{font-size:26px}.foot{grid-template-columns:1fr}.cta{padding:36px 20px}}