/* 旋风加速器 v2 暗夜霓虹主题 */
:root{
  --primary:#7C3AED; --primary-2:#A855F7; --accent:#00F5D4; --accent-2:#FF2E88;
  --bg:#0B0914; --ink:#F4F1FF; --muted:#9D99BE; --line:#29233D;
  --card:#161228; --dark:#070611; --dark-2:#0D0B1A; --tint:#1D1832;
  --grad:linear-gradient(135deg,#6D28D9 0%,#A855F7 50%,#00F5D4 100%);
  --radius:14px; --shadow:0 14px 38px rgba(0,0,0,.5);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Segoe UI",-apple-system,sans-serif;color:var(--ink);background:var(--bg);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-2)}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
.container{max-width:1180px;margin:0 auto;padding:0 22px}
.section{padding:76px 0}
.section.alt{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--accent);text-transform:uppercase;margin-bottom:12px}
.eyebrow::before{content:"";width:26px;height:3px;background:var(--accent-2);border-radius:3px}
.h2{font-size:clamp(24px,3.4vw,38px);font-weight:800;line-height:1.28;letter-spacing:-.01em}
.lead{color:var(--muted);font-size:17px;margin-top:14px;max-width:760px}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}
/* 导航 */
.nav{position:sticky;top:0;z-index:100;background:rgba(11,9,20,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--ink)}
.logo img{width:30px;height:30px;border-radius:7px}
.logo b{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;align-items:center;gap:26px;font-size:15px;font-weight:600}
.nav-links a{color:var(--ink)}
.nav-links a:hover{color:var(--accent)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;border-radius:10px;font-weight:700;font-size:15px;cursor:pointer;border:1px solid transparent;transition:.2s}
.btn-primary{background:var(--grad);color:#0B0914;box-shadow:0 8px 20px rgba(168,85,247,.32)}
.btn-primary:hover{color:#0B0914;transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,245,212,.4)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:var(--card)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-sm{padding:8px 16px;font-size:14px}
/* Hero */
.hero{position:relative;overflow:hidden;background:var(--grad);color:#0B0914;padding:70px 0 90px}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(0,245,212,.35),transparent 45%),radial-gradient(circle at 15% 85%,rgba(255,46,136,.3),transparent 50%)}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.hero h1{font-size:clamp(30px,4.6vw,52px);font-weight:900;line-height:1.18;letter-spacing:-.02em}
.hero h1 span{color:#FF2E88}
.hero p{color:rgba(11,9,20,.78);font-size:18px;margin:18px 0 28px;max-width:560px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-actions .btn-primary{background:#0B0914;color:#00F5D4;box-shadow:0 10px 26px rgba(0,0,0,.28)}
.hero-actions .btn-ghost{border-color:rgba(11,9,20,.4);color:#0B0914;background:rgba(11,9,20,.08)}
.hero-meta{display:flex;gap:22px;margin-top:30px;flex-wrap:wrap;font-size:14px;color:rgba(11,9,20,.72)}
.hero-meta b{display:block;font-size:22px;color:#0B0914}
/* 客户端模拟器 */
.app{background:#0D0B1A;border-radius:16px;box-shadow:0 30px 70px rgba(0,0,0,.6);border:1px solid rgba(255,255,255,.14);overflow:hidden;font-size:13px}
.app-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;background:rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.1)}
.dot{width:11px;height:11px;border-radius:50%}
.dot.r{background:#FF5F57}.dot.y{background:#FEBC2E}.dot.g{background:#28C840}
.app-bar .title{margin-left:10px;color:rgba(255,255,255,.6);font-size:12px}
.app-body{display:grid;grid-template-columns:150px 1fr;min-height:330px}
.app-side{background:rgba(0,0,0,.3);padding:14px 10px;border-right:1px solid rgba(255,255,255,.08)}
.app-side .s-item{padding:9px 12px;border-radius:8px;color:rgba(255,255,255,.72);margin-bottom:4px;display:flex;gap:8px;align-items:center;font-size:12px}
.app-side .s-item.on{background:rgba(0,245,212,.18);color:#00F5D4}
.app-main{padding:18px}
.app-status{display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:16px;margin-bottom:16px}
.app-status .big{font-size:15px;font-weight:800;color:#fff}
.app-status .ping{color:#00F5D4;font-weight:800;font-size:22px}
.app-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:12px}
.app-cell{background:rgba(255,255,255,.05);border-radius:10px;padding:12px}
.app-cell .k{color:rgba(255,255,255,.5);font-size:11px;margin-bottom:4px}
.app-cell .v{color:#fff;font-weight:700;font-size:14px}
.app-cell .v.green{color:#28C840}.app-cell .v.cyan{color:var(--accent)}
.app-graph{height:70px;background:linear-gradient(180deg,rgba(0,245,212,.14),transparent);border-radius:10px;position:relative;overflow:hidden;margin-bottom:14px}
.app-graph svg{position:absolute;inset:0;width:100%;height:100%}
.app-connect{display:block;width:100%;text-align:center;padding:12px;border-radius:10px;background:var(--accent);color:#062036;font-weight:800;font-size:14px}
/* 公告 */
.notice{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 20px;display:flex;align-items:center;gap:14px;box-shadow:var(--shadow)}
.notice .tag{background:var(--accent-2);color:#fff;font-weight:800;font-size:12px;padding:4px 12px;border-radius:20px;white-space:nowrap}
.notice p{color:var(--ink);font-size:15px}
.notice .date{margin-left:auto;color:var(--muted);font-size:13px;white-space:nowrap}
/* 节点速度 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;text-align:center;box-shadow:var(--shadow)}
.stat .num{font-size:36px;font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .lab{color:var(--muted);font-size:14px;margin-top:6px}
.node-map{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:34px}
.node-map span{font-size:13px;padding:6px 14px;border-radius:20px;background:var(--card);border:1px solid var(--line);color:var(--ink)}
.node-map span.hot{background:var(--accent);color:#062036;border-color:transparent;font-weight:700}
/* 功能 */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);transition:.2s}
.feature-card:hover{transform:translateY(-5px);box-shadow:0 18px 42px rgba(168,85,247,.3)}
.feature-card .ic{width:52px;height:52px;border-radius:13px;background:var(--grad);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.feature-card .ic svg{width:26px;height:26px;stroke:#0B0914}
.feature-card h3{font-size:19px;font-weight:800;margin-bottom:10px}
.feature-card p{color:var(--muted);font-size:15px}
/* 对比 */
.compare-wrap{overflow-x:auto}
.compare{width:100%;border-collapse:collapse;background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);min-width:640px}
.compare th,.compare td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--line);font-size:15px}
.compare thead th{background:var(--dark-2);color:#fff;font-weight:800}
.compare tbody tr:last-child td{border-bottom:none}
.compare td.me{background:#221B3D;font-weight:700}
.compare .yes{color:#28C840;font-weight:800}
.compare .no{color:#5A5570}
.compare .name{font-weight:800}
/* 下载 */
.download-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.dl-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 18px;text-align:center;box-shadow:var(--shadow);transition:.2s}
.dl-card:hover{transform:translateY(-4px);box-shadow:0 16px 38px rgba(168,85,247,.3)}
.dl-card .os{width:54px;height:54px;margin:0 auto 14px;border-radius:14px;background:var(--grad);display:flex;align-items:center;justify-content:center}
.dl-card .os svg{width:28px;height:28px;stroke:#0B0914}
.dl-card h3{font-size:16px;font-weight:800;margin-bottom:4px}
.dl-card p{color:var(--muted);font-size:13px;margin-bottom:14px}
/* 场景 */
.scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.scenario{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.scenario h3{font-size:17px;font-weight:800;margin-bottom:10px;display:flex;align-items:center;gap:10px}
.scenario h3::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent-2);flex:none}
.scenario p{color:var(--muted);font-size:14px}
/* FAQ */
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:14px;box-shadow:var(--shadow);overflow:hidden}
.faq-item summary{padding:20px 24px;font-weight:800;font-size:16px;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:22px;color:var(--accent);font-weight:800}
.faq-item[open] summary::after{content:"–"}
.faq-body{padding:0 24px 22px;color:var(--muted);font-size:15px}
.faq-body ol{margin:12px 0 0 20px}
.faq-body li{margin-bottom:10px}
.faq-body li b{color:var(--ink)}
/* 评论 */
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.review{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.review .stars{color:#FFB400;font-size:15px;letter-spacing:2px;margin-bottom:10px}
.review p{color:var(--ink);font-size:15px}
.review .who{display:flex;align-items:center;gap:12px;margin-top:16px}
.review .who .avatar{width:40px;height:40px;border-radius:50%;background:var(--grad);color:#0B0914;display:flex;align-items:center;justify-content:center;font-weight:800}
.review .who b{display:block;font-size:14px}
.review .who span{font-size:12px;color:var(--muted)}
/* 新闻 tab */
.tabs{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:28px}
.tabs a{padding:9px 18px;border-radius:22px;border:1px solid var(--line);color:var(--ink);font-size:14px;font-weight:600;background:var(--card)}
.tabs a.on{background:var(--grad);color:#0B0914;border-color:transparent}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column}
.news-card .thumb{aspect-ratio:16/9;background:var(--grad);display:flex;align-items:center;justify-content:center}
.news-card .thumb svg{width:44px;height:44px;stroke:#0B0914;opacity:.9}
.news-card .body{padding:20px;display:flex;flex-direction:column;flex:1}
.news-card .cat{font-size:12px;color:var(--accent);font-weight:700}
.news-card h3{font-size:16px;font-weight:800;margin:8px 0;line-height:1.5}
.news-card h3 a{color:var(--ink)}
.news-card h3 a:hover{color:var(--accent)}
.news-card .date{color:var(--muted);font-size:13px;margin-top:auto}
/* CTA */
.cta{background:var(--grad);color:#0B0914;text-align:center;padding:70px 0;position:relative;overflow:hidden}
.cta h2{font-size:clamp(26px,3.6vw,40px);font-weight:900}
.cta p{color:rgba(11,9,20,.78);margin:14px 0 28px}
.cta .btn-primary{background:#0B0914;color:#00F5D4}
/* 页脚 */
.footer{background:var(--dark);color:rgba(255,255,255,.72);padding:60px 0 30px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px;margin-bottom:36px}
.footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer a{color:rgba(255,255,255,.6);display:block;margin-bottom:9px}
.footer a:hover{color:#fff}
.footer .brand{font-size:20px;font-weight:800;color:#fff;display:flex;align-items:center;gap:10px;margin-bottom:12px}
.footer .brand img{width:28px;height:28px;border-radius:6px}
.footer .brand b{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.45)}
/* 面包屑 */
.breadcrumb{background:var(--card);border-bottom:1px solid var(--line);padding:14px 0;font-size:14px}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:6px}
.breadcrumb li{color:var(--muted)}
.breadcrumb li+li::before{content:"/";margin-right:6px;color:#5A5570}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb li:last-child{color:var(--ink);font-weight:700}
/* 子页 hero */
.page-hero{background:var(--grad);color:#0B0914;padding:58px 0}
.page-hero h1{font-size:clamp(26px,3.8vw,42px);font-weight:900}
.page-hero p{color:rgba(11,9,20,.78);margin-top:12px;max-width:680px}
/* 文章 */
.article-layout{display:grid;grid-template-columns:1fr 300px;gap:36px;align-items:start}
.article{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow)}
.article h1{font-size:clamp(24px,3.2vw,34px);font-weight:900;line-height:1.35}
.article .meta{display:flex;flex-wrap:wrap;gap:16px;color:var(--muted);font-size:14px;margin:14px 0 22px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.article-content{font-size:16px;color:#D9D4F2}
.article-content p{margin-bottom:18px}
.article-content h2{font-size:22px;font-weight:800;margin:30px 0 14px;padding-left:14px;border-left:4px solid var(--accent-2)}
.article-content h3{font-size:18px;font-weight:800;margin:22px 0 10px}
.article-content table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14px}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-content th{background:var(--tint);font-weight:800}
.article-content figure{margin:20px 0}
.article-content figcaption{color:var(--muted);font-size:13px;text-align:center;margin-top:8px}
.article-content blockquote{border-left:4px solid var(--accent-2);background:var(--tint);padding:14px 18px;margin:18px 0;color:var(--muted);border-radius:0 10px 10px 0}
.article-content ul,.article-content ol{margin:0 0 18px 22px}
.article-content li{margin-bottom:8px}
/* 文章目录 */
.toc{background:var(--tint);border:1px solid var(--line);border-radius:12px;padding:18px 22px;margin:20px 0}
.toc b{font-size:15px}
.toc ol{margin:10px 0 0 20px;font-size:14px;color:var(--accent)}
/* 评论列表 */
.comments{margin-top:34px}
.comments h2{font-size:20px;font-weight:800;margin-bottom:16px}
.comment{background:var(--tint);border:1px solid var(--line);border-radius:12px;padding:18px;margin-bottom:12px}
.comment .c-head{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.comment .c-head .avatar{width:34px;height:34px;border-radius:50%;background:var(--grad);color:#0B0914;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800}
.comment .c-head b{font-size:14px}
.comment .c-head span{font-size:12px;color:var(--muted)}
.comment p{font-size:14px;color:#D9D4F2}
/* 侧栏 */
.sidebar .s-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-bottom:20px;box-shadow:var(--shadow)}
.sidebar h3{font-size:16px;font-weight:800;margin-bottom:14px;padding-left:12px;border-left:4px solid var(--accent-2)}
.sidebar .hot-item{display:flex;gap:10px;margin-bottom:14px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.sidebar .hot-item:last-child{border:none;margin-bottom:0;padding-bottom:0}
.sidebar .hot-item .n{font-size:22px;font-weight:900;color:var(--accent);line-height:1}
.sidebar .hot-item a{color:var(--ink);font-size:14px;font-weight:600;line-height:1.5}
.sidebar .hot-item a:hover{color:var(--accent)}
.sidebar .cat-list a{display:block;padding:8px 0;color:var(--muted);font-size:14px;border-bottom:1px dashed var(--line)}
.sidebar .cat-list a:hover{color:var(--accent)}
/* 上一篇下一篇 */
.pager{display:flex;justify-content:space-between;gap:16px;margin-top:28px}
.pager a{flex:1;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 18px;font-size:14px;color:var(--ink);font-weight:600}
.pager a span{display:block;font-size:12px;color:var(--muted);font-weight:400;margin-bottom:4px}
.pager a:hover{border-color:var(--accent);color:var(--accent)}
/* 相关阅读 */
.related{margin-top:34px}
.related h3{font-size:20px;font-weight:800;margin-bottom:16px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
/* 列表页 */
.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.back-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--muted);margin-top:20px}
.back-link:hover{color:var(--accent)}
/* 响应式 */
@media(max-width:960px){
  .hero-inner{grid-template-columns:1fr}
  .feature-grid,.stats,.scenario-grid,.reviews,.news-grid,.download-grid{grid-template-columns:repeat(2,1fr)}
  .article-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  .feature-grid,.stats,.scenario-grid,.reviews,.news-grid,.download-grid,.news-list{grid-template-columns:1fr}
  .nav-links{display:none}
  .article{padding:22px}
  .footer-grid{grid-template-columns:1fr}
}