:root{--bg:#0e0b1e;--bg2:#141029;--card:#171331;--card2:#1d1838;--line:#2a2448;--brand:#6d5df6;--brand2:#8f7bff;--accent:#2ee6a8;--txt:#ece9f8;--muted:#9b96b8;--warn:#ffc857;--danger:#ff6b6b;--radius:14px;--shadow:0 10px 40px rgba(0,0,0,.45)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--txt);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none;transition:all .2s}
a:hover{color:#6fffc9}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
/* 顶部导航 */
.topbar{position:sticky;top:0;z-index:100;background:rgba(14,11,30,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;height:68px;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;color:var(--txt)}
.brand img{width:34px;height:34px;border-radius:8px}
.brand span{color:var(--accent)}
.nav-links{display:flex;gap:22px;margin-left:auto;align-items:center}
.nav-links a{color:var(--muted);font-size:15px;font-weight:500}
.nav-links a:hover{color:var(--txt)}
.nav-cta{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;padding:9px 20px;border-radius:24px;font-weight:600;font-size:14px}
.nav-cta:hover{color:#fff;transform:translateY(-1px);box-shadow:0 6px 20px rgba(109,93,246,.4)}
/* Hero */
.hero{position:relative;overflow:hidden;padding:72px 0 60px}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 400px at 15% 20%,rgba(109,93,246,.25),transparent 60%),radial-gradient(500px 380px at 85% 30%,rgba(46,230,168,.16),transparent 60%)}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1{font-size:46px;line-height:1.2;font-weight:800;letter-spacing:-.5px}
.hero h1 .hl{background:linear-gradient(90deg,var(--accent),var(--brand2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:18px;font-size:18px;color:var(--muted);max-width:540px}
.hero-actions{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 30px;border-radius:28px;font-weight:600;font-size:16px;border:1px solid transparent}
.btn-primary{background:linear-gradient(135deg,var(--accent),#1fc98e);color:#06241a;box-shadow:0 8px 24px rgba(46,230,168,.3)}
.btn-primary:hover{color:#06241a;transform:translateY(-2px)}
.btn-ghost{border-color:var(--line);color:var(--txt);background:rgba(255,255,255,.03)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand2)}
.hero-badges{margin-top:26px;display:flex;gap:28px;flex-wrap:wrap}
.hero-badges b{display:block;font-size:24px;color:var(--accent)}
.hero-badges span{font-size:13px;color:var(--muted)}
/* 客户端模拟器 */
.simulator{background:linear-gradient(180deg,var(--card2),var(--card));border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);overflow:hidden}
.sim-top{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--line);background:var(--bg2)}
.sim-dot{width:11px;height:11px;border-radius:50%}
.sim-dot.r{background:#ff5f57}.sim-dot.y{background:#febc2e}.sim-dot.g{background:#28c840}
.sim-title{margin-left:10px;font-size:13px;color:var(--muted)}
.sim-body{padding:20px}
.sim-status{display:flex;align-items:center;gap:14px;padding:16px;border-radius:12px;background:rgba(46,230,168,.08);border:1px solid rgba(46,230,168,.25)}
.sim-ring{width:44px;height:44px;border-radius:50%;border:3px solid var(--accent);border-top-color:transparent;animation:spin 2s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.sim-status b{font-size:18px;color:var(--accent)}
.sim-status span{font-size:13px;color:var(--muted)}
.sim-row{display:flex;justify-content:space-between;align-items:center;padding:14px 4px;border-bottom:1px solid var(--line);font-size:14px}
.sim-row .k{color:var(--muted)}
.sim-row .v{font-weight:600}
.sim-row .v.g{color:var(--accent)}
.sim-node{display:flex;align-items:center;gap:10px}
.sim-flag{width:26px;height:26px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--accent));display:flex;align-items:center;justify-content:center;font-size:12px}
.sim-progress{height:8px;border-radius:6px;background:var(--bg2);overflow:hidden;margin-top:6px}
.sim-progress i{display:block;height:100%;background:linear-gradient(90deg,var(--accent),var(--brand));width:68%;border-radius:6px}
.sim-chart{display:flex;align-items:flex-end;gap:6px;height:70px;margin-top:10px}
.sim-chart span{flex:1;background:linear-gradient(180deg,var(--brand),transparent);border-radius:4px 4px 0 0}
.sim-chart span:nth-child(odd){background:linear-gradient(180deg,var(--accent),transparent)}
.sim-chart span:nth-child(1){height:30%}.sim-chart span:nth-child(2){height:55%}.sim-chart span:nth-child(3){height:42%}.sim-chart span:nth-child(4){height:80%}.sim-chart span:nth-child(5){height:62%}.sim-chart span:nth-child(6){height:95%}.sim-chart span:nth-child(7){height:70%}.sim-chart span:nth-child(8){height:48%}
/* 通用 section */
.sec{padding:64px 0}
.sec-head{text-align:center;margin-bottom:44px}
.sec-head h2{font-size:34px;font-weight:800;letter-spacing:-.5px}
.sec-head p{color:var(--muted);margin-top:12px;max-width:640px;margin-left:auto;margin-right:auto}
.tag{display:inline-block;font-size:13px;color:var(--accent);background:rgba(46,230,168,.1);border:1px solid rgba(46,230,168,.25);padding:4px 14px;border-radius:20px;margin-bottom:12px;font-weight:600}
/* 公告 */
.notice{background:linear-gradient(135deg,rgba(255,200,87,.08),rgba(255,200,87,.02));border:1px solid rgba(255,200,87,.25);border-radius:12px;padding:16px 20px;margin:0 0 40px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.notice b{color:var(--warn)}
.notice a{color:var(--accent);font-weight:600}
/* 功能卡片 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:all .25s}
.card:hover{transform:translateY(-6px);border-color:var(--brand);box-shadow:0 14px 34px rgba(109,93,246,.18)}
.card .ico{width:52px;height:52px;border-radius:12px;background:linear-gradient(135deg,rgba(109,93,246,.2),rgba(46,230,168,.15));display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--muted);font-size:14.5px}
/* 对比表 */
.table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line)}
table{width:100%;border-collapse:collapse;min-width:640px}
th,td{padding:14px 18px;text-align:left;font-size:14px;border-bottom:1px solid var(--line)}
th{background:var(--card2);color:var(--txt);font-weight:600}
td{color:var(--muted)}
tr:last-child td{border-bottom:none}
td.ok{color:var(--accent);font-weight:700}
td.no{color:var(--danger)}
td.mid{color:var(--warn)}
.ours{background:rgba(109,93,246,.06)}
/* 新闻 Tabs（纯 CSS） */
.tabs{display:flex;gap:10px;justify-content:center;margin-bottom:30px;flex-wrap:wrap}
.tabs input{display:none}
.tabs label{padding:9px 22px;border-radius:22px;border:1px solid var(--line);cursor:pointer;font-size:14px;color:var(--muted);font-weight:500}
.tabs input:checked+label{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;border-color:transparent}
.tab-panels>div{display:none}
#t1:checked~.tab-panels .p1,#t2:checked~.tab-panels .p2,#t3:checked~.tab-panels .p3{display:block}
.news-item{display:flex;gap:18px;padding:18px;border:1px solid var(--line);border-radius:12px;margin-bottom:14px;background:var(--card);transition:.2s}
.news-item:hover{border-color:var(--brand)}
.news-item .d{color:var(--muted);font-size:13px;white-space:nowrap}
.news-item h3{font-size:17px;margin-bottom:6px}
.news-item p{color:var(--muted);font-size:14px}
/* 评论 */
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.review .stars{color:var(--warn);margin-bottom:10px;letter-spacing:2px}
.review p{color:var(--muted);font-size:14.5px;margin-bottom:14px}
.review .who{display:flex;align-items:center;gap:10px}
.review .ava{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--accent));display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff}
.review .who b{font-size:14px}
.review .who span{font-size:12px;color:var(--muted)}
/* 下载 */
.dl-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.dl-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;text-align:center;transition:.2s}
.dl-item:hover{border-color:var(--accent);transform:translateY(-4px)}
.dl-item .ico{font-size:34px;margin-bottom:12px}
.dl-item b{display:block;font-size:15px;margin-bottom:12px}
.dl-item a.btn{display:inline-block;padding:8px 20px;font-size:13px}
/* 信任背书 */
.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.trust .item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.trust .ico{font-size:30px;margin-bottom:10px}
.trust b{display:block;font-size:18px;margin-bottom:6px}
.trust p{color:var(--muted);font-size:13px}
/* 场景 */
.scenes{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.scene{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);padding:26px;background:var(--card)}
.scene h3{font-size:18px;margin-bottom:8px}
.scene p{color:var(--muted);font-size:14px}
.scene .ico{font-size:26px;margin-bottom:12px}
/* FAQ */
.faq-item{border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;background:var(--card)}
.faq-q{display:block;padding:18px 22px;font-weight:600;cursor:pointer;color:var(--txt);font-size:16px}
.faq-q:hover{color:var(--accent)}
.faq-a{display:none;padding:0 22px 20px;color:var(--muted);font-size:14.5px}
.faq-item input{display:none}
.faq-item input:checked~.faq-a{display:block}
.faq-item input:checked~.faq-q{color:var(--accent)}
.faq-a ol,.faq-a ul{padding-left:20px;margin:8px 0}
.faq-a li{margin:5px 0}
.faq-a h4{color:var(--txt);margin:12px 0 6px;font-size:15px}
/* 底部 CTA */
.cta{background:linear-gradient(135deg,var(--card2),var(--card));border:1px solid var(--line);border-radius:20px;padding:56px 40px;text-align:center}
.cta h2{font-size:32px;margin-bottom:14px}
.cta p{color:var(--muted);margin-bottom:26px}
/* 页脚 */
footer{background:var(--bg2);border-top:1px solid var(--line);padding:48px 0 24px;margin-top:20px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:30px}
.foot-grid h4{font-size:15px;margin-bottom:14px}
.foot-grid a{display:block;color:var(--muted);font-size:14px;margin-bottom:8px}
.foot-grid a:hover{color:var(--accent)}
.foot-brand{color:var(--muted);font-size:14px;margin-top:12px}
.copyright{border-top:1px solid var(--line);padding-top:20px;text-align:center;color:var(--muted);font-size:13px}
.copyright a{color:var(--muted)}
/* 面包屑 */
.breadcrumb{font-size:13px;color:var(--muted);padding:18px 0;margin-bottom:10px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span{color:var(--txt)}
/* 文章页 */
.article-head h1{font-size:34px;font-weight:800;line-height:1.3;margin-bottom:14px}
.article-meta{display:flex;gap:18px;color:var(--muted);font-size:13px;flex-wrap:wrap;margin-bottom:24px}
.article-meta .cat{color:var(--accent)}
.article-body{max-width:760px;margin:0 auto}
.article-body h2{font-size:24px;margin:30px 0 14px;font-weight:700}
.article-body h2::before{content:"# ";color:var(--accent)}
.article-body p{margin-bottom:16px;color:#d6d2ea}
.article-body img{border-radius:12px;margin:20px 0;border:1px solid var(--line)}
.article-body figcaption{text-align:center;color:var(--muted);font-size:12.5px;margin-top:-12px;margin-bottom:20px}
.article-body blockquote{border-left:3px solid var(--accent);padding:12px 18px;background:rgba(46,230,168,.06);margin:20px 0;border-radius:0 10px 10px 0;color:#c8c4e0}
.article-body ul,.article-body ol{padding-left:22px;margin-bottom:16px}
.article-body li{margin:6px 0;color:#d6d2ea}
.article-body table{margin:20px 0}
.toc{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px 24px;margin-bottom:28px}
.toc h3{font-size:15px;margin-bottom:12px;color:var(--accent)}
.toc a{display:block;color:var(--muted);font-size:14px;padding:4px 0}
.toc a:hover{color:var(--accent)}
.article-sidebar{position:sticky;top:90px}
.side-box{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:22px;margin-bottom:20px}
.side-box h3{font-size:16px;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.side-box a{display:block;color:var(--muted);font-size:14px;padding:6px 0;border-bottom:1px dashed var(--line)}
.side-box a:last-child{border-bottom:none}
.side-box a:hover{color:var(--accent)}
.article-nav{display:flex;justify-content:space-between;gap:16px;margin-top:34px;padding-top:20px;border-top:1px solid var(--line)}
.article-nav a{font-size:14px}
.related{margin-top:30px}
.related h3{font-size:18px;margin-bottom:16px}
/* 404 */
.e404{text-align:center;padding:100px 20px}
.e404 h1{font-size:90px;font-weight:900;background:linear-gradient(135deg,var(--brand),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.e404 p{color:var(--muted);margin:16px 0 28px;font-size:18px}
/* 响应式 */
@media(max-width:960px){.hero-grid{grid-template-columns:1fr}.grid-3,.reviews,.scenes,.trust{grid-template-columns:1fr 1fr}.dl-grid{grid-template-columns:repeat(3,1fr)}.foot-grid{grid-template-columns:1fr 1fr}.nav-links{display:none}}
@media(max-width:600px){.grid-3,.reviews,.scenes,.trust,.dl-grid{grid-template-columns:1fr}.hero h1{font-size:32px}.sec-head h2{font-size:26px}}