*{margin:0;padding:0;box-sizing:border-box}
:root{--blue:#2563eb;--sky:#0ea5e9;--cyan:#06b6d4;--ink:#0b1220;--navy:#0f172a;--text:#1e293b;--muted:#64748b;--line:#e2e8f0;--bg:#f8fafc;--card:#ffffff;--grad:linear-gradient(135deg,#2563eb 0%,#0ea5e9 50%,#06b6d4 100%);--radius:16px;--shadow:0 10px 30px rgba(15,23,42,.08)}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;color:var(--text);background:var(--card);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
section{position:relative;padding:88px 0}
.sec-head{max-width:720px;margin:0 auto 56px;text-align:center}
.sec-head .kicker{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue);background:rgba(37,99,235,.08);padding:6px 16px;border-radius:999px;margin-bottom:16px}
.sec-head h2{font-size:36px;line-height:1.25;color:var(--ink);font-weight:800;margin-bottom:16px}
.sec-head p{color:var(--muted);font-size:17px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:16px;padding:14px 28px;border-radius:999px;border:1px solid transparent;cursor:pointer;transition:.25s;white-space:nowrap}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 24px rgba(37,99,235,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(37,99,235,.38)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn-lg{padding:16px 34px;font-size:17px}
/* 导航 */
.nav{position:fixed;top:0;left:0;width:100%;z-index:1000;transition:.3s;padding:18px 0}
.nav.scrolled{background:rgba(11,18,32,.82);backdrop-filter:blur(14px);box-shadow:0 4px 24px rgba(0,0,0,.15);padding:12px 0}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:#fff}
.nav.scrolled .logo{color:#fff}
.logo img{height:34px;width:34px;border-radius:8px}
.menu ul{display:flex;align-items:center;gap:6px}
.menu>ul>li{position:relative}
.menu>ul>li>a{display:flex;align-items:center;gap:6px;color:rgba(255,255,255,.92);font-weight:600;font-size:15px;padding:10px 16px;border-radius:10px;transition:.2s}
.menu>ul>li>a:hover{background:rgba(255,255,255,.12)}
.menu .arrow{font-size:11px;transition:.25s}
.menu li.has-drop:hover>a .arrow,.menu li.has-drop.open>a .arrow{transform:rotate(180deg)}
.drop{position:absolute;top:calc(100% + 8px);left:0;min-width:190px;background:#fff;border-radius:14px;box-shadow:0 18px 44px rgba(15,23,42,.16);padding:8px;opacity:0;visibility:hidden;transform:translateY(10px);transition:.25s}
.menu li.has-drop:hover .drop,.menu li.has-drop.open .drop{opacity:1;visibility:visible;transform:translateY(0)}
.drop a{display:block;padding:10px 14px;border-radius:9px;color:var(--text);font-size:14px;font-weight:500;transition:.2s}
.drop a:hover{background:#f1f5f9;color:var(--blue)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-actions .btn{padding:10px 22px;font-size:14px}
.nav-actions .btn-ghost{color:#fff;border-color:rgba(255,255,255,.4)}
.nav-actions .btn-ghost:hover{border-color:#fff;color:#fff}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.hamburger span{width:24px;height:2px;background:#fff;border-radius:2px;transition:.3s}
.hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
/* Hero */
.hero{background:radial-gradient(1100px 600px at 80% -10%,rgba(14,165,233,.28),transparent 60%),radial-gradient(900px 500px at 0% 10%,rgba(37,99,235,.25),transparent 55%),linear-gradient(180deg,#0b1220,#0f172a);color:#fff;padding:170px 0 110px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:50px;line-height:1.15;font-weight:800;margin-bottom:22px}
.hero h1 .grad-text{color:transparent}
.hero .sub{font-size:19px;color:rgba(255,255,255,.78);margin-bottom:32px;max-width:520px}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:42px}
.hero-stats{display:flex;gap:40px;flex-wrap:wrap}
.hero-stats .st{display:flex;flex-direction:column}
.hero-stats .st b{font-size:30px;font-weight:800;color:#fff}
.hero-stats .st span{font-size:13px;color:rgba(255,255,255,.6)}
.simulator{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:22px;padding:26px;backdrop-filter:blur(10px);box-shadow:0 30px 70px rgba(0,0,0,.35)}
.sim-head{display:flex;align-items:center;gap:8px;margin-bottom:20px}
.sim-head i{width:11px;height:11px;border-radius:50%;display:inline-block}
.sim-head .r{background:#ff5f57}.sim-head .y{background:#febc2e}.sim-head .g{background:#28c840}
.sim-head .title{margin-left:10px;font-size:13px;color:rgba(255,255,255,.7);font-family:ui-monospace,monospace}
.sim-body .row{display:flex;align-items:center;justify-content:space-between;padding:13px 14px;border-radius:11px;background:rgba(255,255,255,.05);margin-bottom:9px;font-size:14px}
.sim-body .row .name{display:flex;align-items:center;gap:9px}
.sim-body .dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan)}
.sim-body .row .val{font-family:ui-monospace,monospace;color:rgba(255,255,255,.85)}
.sim-body .row .tag{font-size:11px;padding:3px 9px;border-radius:6px;background:rgba(14,165,233,.2);color:#7dd3fc}
.sim-foot{margin-top:16px;text-align:center;font-size:12px;color:rgba(255,255,255,.5);font-family:ui-monospace,monospace}
/* 卡片通用 */
.grid{display:grid;gap:24px}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cols-2{grid-template-columns:repeat(2,1fr)}
.cols-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:.3s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.icon{width:54px;height:54px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:26px;background:var(--grad);color:#fff;margin-bottom:20px}
.card h3{font-size:19px;font-weight:700;color:var(--ink);margin-bottom:10px}
.card p{color:var(--muted);font-size:15px}
/* 三步上手 */
.steps{background:var(--bg)}
.step .num{font-size:40px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:8px}
/* 核心功能 */
.features{background:linear-gradient(180deg,#fff,#f8fafc)}
/* 数据节点 */
.nodes{background:var(--ink);color:#fff}
.nodes .sec-head h2{color:#fff}
.nodes .sec-head p{color:rgba(255,255,255,.65)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:48px;text-align:center}
.stat-grid .it{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:26px}
.stat-grid .it b{font-size:34px;font-weight:800;display:block;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-grid .it span{font-size:14px;color:rgba(255,255,255,.6)}
.node-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.node{display:flex;align-items:center;gap:12px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:14px 16px;transition:.25s}
.node:hover{background:rgba(14,165,233,.15);border-color:rgba(14,165,233,.4)}
.node .flag{width:34px;height:34px;border-radius:8px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-size:17px;flex-shrink:0}
.node b{font-size:14px;color:#fff;display:block}
.node span{font-size:12px;color:rgba(255,255,255,.55)}
/* 场景 */
.scenarios{background:var(--bg)}
/* 协议标签 */
.protocols{background:linear-gradient(180deg,#f8fafc,#fff)}
.tags{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.tag{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;color:var(--text);background:#fff;border:1px solid var(--line);border-radius:999px;padding:12px 24px;transition:.25s}
.tag:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-3px);box-shadow:var(--shadow)}
/* 价格 */
.pricing{background:var(--bg)}
.price-card{text-align:left;position:relative;display:flex;flex-direction:column}
.price-card.hot{border:2px solid var(--blue);box-shadow:0 20px 50px rgba(37,99,235,.18);transform:scale(1.03)}
.price-card .badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:12px;font-weight:700;padding:5px 16px;border-radius:999px;white-space:nowrap}
.price-card .pname{font-size:16px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.price-card .price{font-size:44px;font-weight:800;color:var(--ink);margin:12px 0 4px}
.price-card .price small{font-size:15px;font-weight:500;color:var(--muted)}
.price-card .desc{color:var(--muted);font-size:14px;margin-bottom:20px}
.price-card ul{margin-bottom:26px;flex:1}
.price-card ul li{padding:8px 0;color:var(--text);font-size:15px;border-bottom:1px dashed var(--line);display:flex;gap:9px}
.price-card ul li::before{content:"✓";color:var(--blue);font-weight:800}
.price-card .btn{width:100%}
/* FAQ */
.faq{background:#fff}
.faq-item{border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden;background:#fff}
.faq-q{width:100%;text-align:left;background:none;border:none;padding:20px 24px;font-size:17px;font-weight:700;color:var(--ink);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-q .plus{font-size:22px;color:var(--blue);transition:.3s;flex-shrink:0}
.faq-item.open .faq-q .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:.35s;color:var(--muted);font-size:15px;padding:0 24px}
.faq-item.open .faq-a{max-height:900px;padding:0 24px 22px}
.faq-a ol{margin-left:18px;padding-left:0}
.faq-a ol li{margin-bottom:8px}
/* 资讯 */
.news{background:var(--bg)}
.news-card{overflow:hidden;padding:0;display:flex;flex-direction:column}
.news-card img{width:100%;height:180px;object-fit:cover}
.news-card .bd{padding:20px}
.news-card .meta{font-size:12px;color:var(--muted);margin-bottom:8px}
.news-card h3{font-size:17px;margin-bottom:8px}
.news-card p{font-size:14px;margin-bottom:14px}
.news-card .more{font-weight:700;font-size:14px;color:var(--blue)}
/* 评价 */
.testimonials{background:var(--ink);color:#fff}
.testimonials .sec-head h2{color:#fff}
.testimonials .sec-head p{color:rgba(255,255,255,.6)}
.t-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1)}
.t-card .stars{color:#fbbf24;font-size:18px;letter-spacing:2px;margin-bottom:14px}
.t-card p{color:rgba(255,255,255,.85);font-size:15px;margin-bottom:20px}
.t-user{display:flex;align-items:center;gap:12px}
.t-user .avatar{width:44px;height:44px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;font-size:18px}
.t-user b{font-size:15px;display:block;color:#fff}
.t-user span{font-size:13px;color:rgba(255,255,255,.55)}
/* CTA */
.cta{background:var(--grad);color:#fff;text-align:center;padding:80px 0}
.cta h2{font-size:38px;font-weight:800;margin-bottom:16px}
.cta p{color:rgba(255,255,255,.9);font-size:18px;margin-bottom:30px}
.cta .btn-primary{background:#fff;color:var(--blue);box-shadow:0 10px 30px rgba(0,0,0,.2)}
.cta .btn-primary:hover{box-shadow:0 16px 40px rgba(0,0,0,.28)}
/* 页脚 */
.footer{background:#0b1220;color:rgba(255,255,255,.7);padding:70px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;margin-bottom:44px}
.footer .logo{color:#fff;margin-bottom:16px}
.footer .about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.55);max-width:280px}
.footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px}
.footer ul li{margin-bottom:12px}
.footer ul a{font-size:14px;color:rgba(255,255,255,.6);transition:.2s}
.footer ul a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;text-align:center;font-size:13px;color:rgba(255,255,255,.45)}
/* 面包屑 */
.crumb{background:#0f172a;color:rgba(255,255,255,.8);padding:130px 0 28px}
.crumb .container{font-size:14px}
.crumb a{color:rgba(255,255,255,.7)}
.crumb a:hover{color:#fff}
.crumb .sep{margin:0 8px;color:rgba(255,255,255,.4)}
.crumb h1{font-size:32px;font-weight:800;color:#fff;margin-top:12px}
/* 下载页 */
.dl-hero{padding:150px 0 90px;background:radial-gradient(1000px 550px at 85% -10%,rgba(14,165,233,.28),transparent 60%),linear-gradient(180deg,#0b1220,#0f172a);color:#fff}
.dl-hero h1{color:#fff}
.dl-hero .sub{color:rgba(255,255,255,.78)}
.dl-hero .dl-meta .it b{color:#fff}
.dl-hero .dl-meta .it span{color:rgba(255,255,255,.6)}
.dl-meta{display:flex;gap:34px;flex-wrap:wrap;margin-bottom:30px}
.dl-meta .it b{font-size:22px;font-weight:800;display:block;color:var(--ink)}
.dl-meta .it span{font-size:13px;color:var(--muted)}
.version-card .v{font-size:13px;font-weight:700;color:var(--blue);text-transform:uppercase;letter-spacing:.05em}
.version-card .vname{font-size:22px;font-weight:800;color:var(--ink);margin:6px 0}
.version-card .size{font-size:14px;color:var(--muted);margin-bottom:16px}
.version-card ul{margin-bottom:22px}
.version-card ul li{padding:7px 0;font-size:15px;display:flex;gap:9px}
.version-card ul li::before{content:"✓";color:var(--blue);font-weight:800}
/* 系统要求 */
.sys{background:var(--bg)}
.sys-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.sys-it{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px}
.sys-it .icon{width:44px;height:44px;font-size:21px;margin-bottom:14px}
.sys-it b{font-size:16px;color:var(--ink);display:block;margin-bottom:6px}
.sys-it p{font-size:14px;color:var(--muted)}
/* 新闻详情 */
.article{padding:60px 0}
.article-layout{display:grid;grid-template-columns:1fr 300px;gap:48px;align-items:start}
.article-main h1{font-size:34px;line-height:1.3;font-weight:800;color:var(--ink);margin-bottom:18px}
.article-main .meta{display:flex;gap:18px;color:var(--muted);font-size:14px;margin-bottom:28px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.article-main .meta .cat{color:var(--blue);font-weight:700}
.article-cover{width:100%;border-radius:16px;margin-bottom:30px}
.article-main .lead{font-size:18px;color:var(--text);font-weight:600;margin-bottom:24px;line-height:1.8}
.article-main h2{font-size:24px;font-weight:800;color:var(--ink);margin:34px 0 16px}
.article-main p{font-size:16px;color:#334155;margin-bottom:18px;line-height:1.9}
.article-main img.inline{width:100%;border-radius:14px;margin:18px 0}
.article-main blockquote{border-left:4px solid var(--blue);background:var(--bg);padding:18px 22px;border-radius:0 12px 12px 0;margin:22px 0;color:var(--text);font-style:normal}
.aside{position:sticky;top:110px}
.aside .box{background:var(--bg);border-radius:14px;padding:24px;margin-bottom:20px}
.aside h4{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:14px}
.aside ul li{margin-bottom:10px}
.aside ul a{font-size:14px;color:var(--muted);display:block;padding:8px 12px;border-radius:8px;transition:.2s}
.aside ul a:hover{background:#fff;color:var(--blue)}
.prev-next{display:flex;justify-content:space-between;gap:16px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.prev-next a{font-size:14px;font-weight:600;color:var(--blue)}
.back-list{display:inline-block;margin-top:26px;font-weight:700;color:var(--blue)}
/* 站点地图 */
.sitemap{padding:60px 0}
.sitemap h2{font-size:22px;font-weight:800;color:var(--ink);margin:30px 0 16px;padding-left:14px;border-left:4px solid var(--blue)}
.sitemap ul li{margin-bottom:10px}
.sitemap ul a{font-size:15px;color:var(--muted);transition:.2s}
.sitemap ul a:hover{color:var(--blue)}
/* 404 */
.err{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:radial-gradient(900px 500px at 50% 30%,rgba(37,99,235,.18),transparent),linear-gradient(180deg,#0b1220,#0f172a);color:#fff;padding:40px}
.err h1{font-size:120px;font-weight:800;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.err h2{font-size:26px;margin:16px 0}
.err p{color:rgba(255,255,255,.65);margin-bottom:30px}
/* 响应式 */
@media(max-width:992px){
.menu{position:fixed;top:0;right:-320px;width:300px;height:100vh;background:#0f172a;padding:90px 24px 30px;transition:.35s;overflow-y:auto;z-index:1001}
.menu.open{right:0}
.menu ul{flex-direction:column;align-items:stretch;gap:4px}
.menu>ul>li>a{color:#fff;padding:13px 16px;font-size:16px}
.drop{position:static;min-width:0;background:rgba(255,255,255,.05);box-shadow:none;opacity:1;visibility:visible;transform:none;padding:4px 8px;display:none;border-radius:10px}
.menu li.has-drop.open .drop{display:block}
.drop a{color:rgba(255,255,255,.8)}
.drop a:hover{background:rgba(255,255,255,.1);color:#fff}
.hamburger{display:flex;position:relative;z-index:1002}
.nav-actions{display:none}
.hero-grid{grid-template-columns:1fr}
.hero h1{font-size:40px}
.cols-3,.cols-4,.stat-grid,.node-grid,.sys-grid{grid-template-columns:repeat(2,1fr)}
.price-card.hot{transform:none}
.article-layout{grid-template-columns:1fr}
.aside{position:static}
.footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
section{padding:64px 0}
.sec-head h2{font-size:28px}
.hero{padding:140px 0 80px}
.hero h1{font-size:32px}
.hero .sub{font-size:16px}
.hero-stats{gap:26px}
.hero-stats .st b{font-size:24px}
.cols-3,.cols-4,.stat-grid,.node-grid,.sys-grid,.cols-2{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
.dl-hero{padding:140px 0 70px}
.cta h2{font-size:28px}
.err h1{font-size:84px}
}
@media(max-width:480px){
.container{padding:0 18px}
.hero h1{font-size:28px}
.hero-cta .btn{width:100%}
.sec-head h2{font-size:24px}
.btn-lg{padding:14px 26px;font-size:16px}
.node-grid{grid-template-columns:1fr 1fr}
}
/* 下载页增强 */
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:30px}
.hero-tags .ht{font-size:13px;font-weight:600;color:#7dd3fc;background:rgba(14,165,233,.14);border:1px solid rgba(14,165,233,.32);padding:6px 14px;border-radius:999px}
.dl-sim .dl-file{display:flex;align-items:center;gap:14px;background:rgba(255,255,255,.06);border-radius:12px;padding:14px 16px;margin-bottom:16px}
.dl-sim .file-icon{font-size:30px;line-height:1}
.dl-sim .file-info b{display:block;color:#fff;font-size:14px;margin-bottom:2px}
.dl-sim .file-info span{font-size:12px;color:rgba(255,255,255,.55)}
.dl-bar{height:10px;background:rgba(255,255,255,.12);border-radius:999px;overflow:hidden;margin-bottom:14px}
.dl-bar-fill{height:100%;width:0;background:var(--grad);border-radius:999px;transition:width .35s ease}
.dl-meta-row{display:flex;justify-content:space-between;font-size:12px;color:rgba(255,255,255,.6);margin-bottom:14px}
.dl-meta-row b{color:#fff;font-family:ui-monospace,monospace}
.dl-status{text-align:center;font-size:13px;color:#7dd3fc;font-family:ui-monospace,monospace;min-height:18px}
.plat-icon{width:48px;height:48px;border-radius:12px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-size:24px;color:#fff;margin-bottom:16px}
.version-card{position:relative}
.version-card.hot{border:2px solid var(--blue);box-shadow:0 16px 40px rgba(37,99,235,.15)}
.version-card .uptime{font-size:12px;color:var(--muted);margin-bottom:6px}
.version-card .badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:12px;font-weight:700;padding:5px 16px;border-radius:999px;white-space:nowrap}