:root{
--primary:#5b4bea;--primary-d:#3d2fc9;--primary-l:#7a6cf0;--accent:#00c4b4;--accent-d:#00a396;
--bg:#ffffff;--bg-soft:#f6f7fb;--bg-dark:#0e1024;--bg-dark-2:#151833;
--text:#171a2e;--muted:#5b6178;--muted-2:#8b90a5;--line:#e6e8f2;--line-2:#d5d8e6;
--ok:#16a34a;--warn:#d97706;--danger:#dc2626;
--radius:16px;--radius-sm:10px;--radius-lg:24px;
--shadow:0 10px 30px rgba(23,26,46,.08);--shadow-lg:0 24px 60px rgba(23,26,46,.14);
--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.7;font-size:16px}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-d)}
img{max-width:100%;height:auto;display:block}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section--soft{background:var(--bg-soft)}
.section--dark{background:var(--bg-dark);color:#e8eaf6}
.section-head{max-width:720px;margin:0 auto 44px;text-align:center}
.kicker{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-d);background:rgba(0,196,180,.1);padding:6px 14px;border-radius:999px;margin-bottom:14px}
.section-head h2{font-size:34px;line-height:1.25;font-weight:800;letter-spacing:-.01em;margin-bottom:14px}
.section-head p{color:var(--muted);font-size:17px}
.section--dark .section-head h2{color:#fff}
.section--dark .section-head p{color:#b9bdd6}

/* 顶部导航 */
.topbar{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--text)}
.brand img{width:34px;height:34px;border-radius:8px}
.brand span b{color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:26px;list-style:none}
.nav-links a{color:var(--text);font-size:15px;font-weight:500}
.nav-links a:hover{color:var(--primary)}
.nav-cta{display:inline-flex;align-items:center;gap:8px;background:var(--primary);color:#fff;font-weight:700;font-size:14px;padding:10px 20px;border-radius:999px}
.nav-cta:hover{background:var(--primary-d);color:#fff}

/* Hero */
.hero{background:radial-gradient(1200px 600px at 80% -10%,rgba(91,75,234,.28),transparent 60%),radial-gradient(900px 500px at 10% 110%,rgba(0,196,180,.22),transparent 60%),var(--bg-dark);color:#fff;padding:84px 0 96px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:46px;line-height:1.15;font-weight:800;letter-spacing:-.02em;margin-bottom:18px}
.hero h1 .grad{background:linear-gradient(90deg,#8ea6ff,#4ee0d0);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:18px;color:#c3c8e0;max-width:520px;margin-bottom:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.hero-tags span{font-size:13px;font-weight:600;color:#cdd3ee;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);padding:6px 12px;border-radius:999px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:15px;padding:14px 26px;border-radius:12px;border:0;cursor:pointer;line-height:1.2}
.btn-primary{background:var(--accent);color:#04110f}
.btn-primary:hover{background:#08d8c7;color:#04110f}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.2)}
.btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff}
.btn-light{background:#fff;color:var(--primary-d)}
.btn-light:hover{background:#eef0fb;color:var(--primary-d)}
.btn-lg{padding:16px 32px;font-size:16px}

/* 客户端模拟器 */
.simulator{position:relative;background:linear-gradient(180deg,#1b1f3c,#12152b);border:1px solid rgba(255,255,255,.12);border-radius:20px;box-shadow:0 40px 90px rgba(0,0,0,.45);padding:18px;overflow:hidden}
.simulator::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(255,255,255,.05),transparent 40%);pointer-events:none}
.sim-top{display:flex;align-items:center;gap:8px;margin-bottom:14px;padding:0 4px}
.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:auto;font-size:12px;color:#8f95b8;font-weight:600;letter-spacing:.04em}
.sim-body{background:#0d0f22;border-radius:12px;padding:16px}
.sim-connect{display:flex;align-items:center;justify-content:space-between;background:#171a36;border-radius:12px;padding:14px 16px;margin-bottom:14px}
.sim-status{display:flex;align-items:center;gap:10px}
.sim-led{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.sim-status b{font-size:14px;color:#fff}
.sim-status small{display:block;font-size:11px;color:#8f95b8}
.sim-node{display:flex;align-items:center;gap:10px;font-size:13px;color:#cdd3ee}
.sim-flag{width:24px;height:16px;border-radius:3px;background:linear-gradient(135deg,#fff 33%,#d52b1e 33%,#d52b1e 66%,#0039a6 66%)}
.sim-row{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.08);font-size:13px;color:#a7adcd}
.sim-row b{color:#eef0ff}
.sim-meter{height:6px;border-radius:99px;background:#20234a;overflow:hidden;margin:12px 0}
.sim-meter i{display:block;height:100%;width:78%;background:linear-gradient(90deg,var(--accent),#4ee0d0);border-radius:99px}
.sim-download{margin-top:8px}

/* 公告区 */
.notice{display:flex;align-items:flex-start;gap:14px;background:#fff;border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:12px;padding:18px 22px;box-shadow:var(--shadow)}
.notice .icon{flex:0 0 auto;width:40px;height:40px;border-radius:10px;background:rgba(0,196,180,.12);display:flex;align-items:center;justify-content:center;font-size:20px}
.notice h3{font-size:16px;margin-bottom:4px}
.notice p{color:var(--muted);font-size:14px}

/* 核心功能卡片 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card .ico{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,rgba(91,75,234,.12),rgba(0,196,180,.12));display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--muted);font-size:15px}

/* 对比表 */
.compare{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow);background:#fff}
.compare table{width:100%;border-collapse:collapse;min-width:680px}
.compare th,.compare td{padding:15px 18px;text-align:left;font-size:14px;border-bottom:1px solid var(--line)}
.compare thead th{background:var(--bg-dark);color:#fff;font-weight:700}
.compare thead th.hl{background:var(--primary)}
.compare tbody tr:last-child td{border-bottom:0}
.compare .yes{color:var(--ok);font-weight:700}
.compare .no{color:var(--muted)}
.compare .brand-col{font-weight:700}

/* 新闻 Tabs */
.tabs{display:flex;gap:10px;margin-bottom:26px;flex-wrap:wrap}
.tab-btn{display:inline-block;padding:9px 18px;border-radius:999px;background:var(--bg-soft);border:1px solid var(--line);color:var(--muted);font-weight:600;font-size:14px}
.tab-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column}
.news-card img{height:170px;width:100%;object-fit:cover}
.news-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-card .cat{font-size:12px;font-weight:700;color:var(--accent-d);text-transform:uppercase;letter-spacing:.05em}
.news-card h3{font-size:16px;line-height:1.4;font-weight:700}
.news-card h3 a{color:var(--text)}
.news-card h3 a:hover{color:var(--primary)}
.news-card .meta{font-size:12px;color:var(--muted-2);margin-top:auto}

/* 用户评论 */
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.review .stars{color:#f59e0b;font-size:15px;letter-spacing:2px;margin-bottom:12px}
.review p{color:var(--text);font-size:15px;margin-bottom:16px}
.review .who{display:flex;align-items:center;gap:12px}
.review .ava{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
.review .who b{font-size:14px;display:block}
.review .who small{color:var(--muted-2);font-size:12px}

/* 下载区 */
.platforms{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.plat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 16px;text-align:center;box-shadow:var(--shadow);transition:transform .2s}
.plat:hover{transform:translateY(-4px)}
.plat .ico{font-size:34px;margin-bottom:12px}
.plat b{display:block;font-size:15px;margin-bottom:6px}
.plat small{display:block;color:var(--muted);font-size:12px;margin-bottom:14px}
.plat a.btn{display:block;width:100%}

/* 信任背书 */
.trust{display:flex;flex-wrap:wrap;gap:22px;justify-content:center;align-items:center}
.trust-item{display:flex;flex-direction:column;align-items:center;gap:4px;min-width:120px}
.trust-item .num{font-size:30px;font-weight:800;color:var(--primary)}
.trust-item small{color:var(--muted);font-size:13px}

/* 应用场景 */
.scenes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene{background:linear-gradient(160deg,#ffffff,#f6f7fb);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.scene h3{font-size:18px;margin-bottom:10px}
.scene p{color:var(--muted);font-size:15px}

/* FAQ */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow)}
.faq-q{padding:18px 22px;font-weight:700;font-size:16px;color:var(--text)}
.faq-a{padding:0 22px 20px;color:var(--muted);font-size:15px}
.faq-a ol{padding-left:20px;margin-top:8px}
.faq-a li{margin-bottom:8px}
.faq-a li b{color:var(--text)}

/* CTA */
.cta{background:linear-gradient(120deg,var(--primary),var(--primary-d) 55%,var(--accent-d));color:#fff;border-radius:var(--radius-lg);padding:56px;text-align:center}
.cta h2{font-size:32px;font-weight:800;margin-bottom:12px}
.cta p{color:#e2e4ff;margin-bottom:26px}
.cta .btn{background:#fff;color:var(--primary-d)}
.cta .btn:hover{background:#eef0fb}

/* 页脚 */
.footer{background:var(--bg-dark);color:#b9bdd6;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer p{font-size:14px;color:#9aa0bd}
.footer ul{list-style:none}
.footer ul li{margin-bottom:10px}
.footer ul a{color:#9aa0bd;font-size:14px}
.footer ul a:hover{color:#fff}
.footer-links{margin:24px 0;padding:20px 0;border-top:1px solid rgba(255,255,255,.08);border-bottom:1px solid rgba(255,255,255,.08)}
.footer-links h4{color:#fff;font-size:14px;margin-bottom:12px}
.friend-links{display:flex;flex-wrap:wrap;gap:10px}
.friend-links a{color:#8b90a5;font-size:13px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);padding:6px 12px;border-radius:8px}
.friend-links a:hover{color:#fff;border-color:var(--accent)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:#7a7f99}
.footer-bottom a{color:#9aa0bd}

/* 面包屑 */
.breadcrumb{font-size:14px;color:var(--muted);margin:20px 0 8px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span{color:var(--muted-2)}

/* 文章页 */
.article-layout{display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:start}
.article-main{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:36px;box-shadow:var(--shadow)}
.article-main h1{font-size:30px;line-height:1.3;font-weight:800;margin-bottom:14px}
.article-meta{display:flex;flex-wrap:wrap;gap:14px;font-size:13px;color:var(--muted-2);margin-bottom:22px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.article-meta .cat{color:var(--accent-d);font-weight:700}
.article-cover{border-radius:12px;margin-bottom:24px}
.article-main h2{font-size:22px;margin:28px 0 12px;font-weight:800;color:var(--text)}
.article-main h3{font-size:18px;margin:22px 0 10px}
.article-main p{margin-bottom:16px;color:#2a2e45}
.article-main table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14px}
.article-main th,.article-main td{border:1px solid var(--line-2);padding:11px 14px;text-align:left}
.article-main th{background:var(--bg-soft);font-weight:700}
.article-main blockquote{border-left:4px solid var(--accent);background:var(--bg-soft);padding:16px 20px;margin:18px 0;color:#33384f;border-radius:0 8px 8px 0}
.article-main .fig{font-size:12px;color:var(--muted-2);text-align:center;margin:-10px 0 18px}
.sidebar{position:sticky;top:84px;display:flex;flex-direction:column;gap:22px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.side-card h4{font-size:16px;margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid var(--accent)}
.side-card ul{list-style:none}
.side-card ul li{margin-bottom:11px}
.side-card ul a{color:var(--text);font-size:14px;line-height:1.45}
.side-card ul a:hover{color:var(--primary)}
.side-card ul a .n{color:var(--muted-2);margin-right:6px;font-weight:700}
.pager{display:flex;justify-content:space-between;gap:14px;margin-top:28px;padding-top:20px;border-top:1px solid var(--line)}
.pager a{flex:1;font-size:14px;color:var(--primary)}
.pager a.muted{color:var(--muted-2);pointer-events:none}
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px}

/* 评论 */
.comments{margin-top:32px}
.comment{background:var(--bg-soft);border:1px solid var(--line);border-radius:10px;padding:16px;margin-bottom:12px}
.comment .who{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.comment .ava{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px}
.comment b{font-size:14px;display:block}
.comment small{color:var(--muted-2);font-size:12px}
.comment p{font-size:14px;color:#2a2e45;margin:0}

/* 响应式 */
@media(max-width:960px){
.hero-grid,.article-layout{grid-template-columns:1fr}
.hero h1{font-size:34px}
.grid-3,.news-grid,.reviews,.scenes,.related{grid-template-columns:1fr 1fr}
.platforms{grid-template-columns:1fr 1fr 1fr}
.sidebar{position:static}
.footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
.grid-3,.news-grid,.reviews,.scenes,.related{grid-template-columns:1fr}
.platforms{grid-template-columns:1fr 1fr}
.nav-links{display:none}
.section{padding:52px 0}
.hero{padding:56px 0 68px}
.cta{padding:36px 22px}
.article-main{padding:22px}
.footer-grid{grid-template-columns:1fr}
}