:root{--c-primary:#0e8a5f;--c-primary-dark:#086546;--c-accent:#2fd58a;--c-bg:#f5faf7;--c-surface:#ffffff;--c-ink:#12241b;--c-muted:#5c7064;--c-line:#e3ede7;--c-warn:#b7791f;--radius:14px;--shadow:0 8px 30px rgba(10,60,40,.08);--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--c-ink);background:var(--c-bg);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:var(--c-primary);text-decoration:none}
a:hover{color:var(--c-primary-dark)}
img{max-width:100%;display:block}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
section{padding:72px 0}
.sec-head{text-align:center;max-width:760px;margin:0 auto 48px}
.sec-tag{display:inline-block;font-size:13px;font-weight:600;letter-spacing:1px;color:var(--c-primary);background:#e7f5ee;padding:5px 16px;border-radius:999px;margin-bottom:14px}
.sec-head h2{font-size:32px;line-height:1.3;margin-bottom:14px;color:var(--c-ink)}
.sec-head p{color:var(--c-muted);font-size:16px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 30px;border-radius:999px;font-weight:600;font-size:16px;transition:.2s;border:0;cursor:pointer}
.btn-primary{background:linear-gradient(135deg,var(--c-accent),var(--c-primary));color:#fff;box-shadow:0 8px 24px rgba(14,138,95,.3)}
.btn-primary:hover{transform:translateY(-2px);color:#fff;box-shadow:0 12px 30px rgba(14,138,95,.4)}
.btn-ghost{background:#fff;color:var(--c-primary);border:1.5px solid var(--c-line)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary-dark)}
.btn-sm{padding:10px 22px;font-size:14px}
.btn-lg{padding:17px 40px;font-size:17px}

/* header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--c-line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;color:var(--c-ink)}
.brand img{width:36px;height:36px;border-radius:8px}
.brand span em{font-style:normal;color:var(--c-primary)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{color:var(--c-ink);font-weight:500;font-size:15px}
.nav-links a:hover{color:var(--c-primary)}
.nav-cta{display:flex;align-items:center;gap:12px}

/* hero */
.hero{background:linear-gradient(160deg,#0b6b47 0%,#0e8a5f 55%,#16a06e 100%);color:#fff;padding:84px 0 96px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(900px 400px at 85% 10%,rgba(255,255,255,.14),transparent 60%)}
.hero .container{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero h1{font-size:42px;line-height:1.25;margin-bottom:20px;font-weight:800}
.hero h1 em{font-style:normal;color:#7dffc4}
.hero .lead{font-size:18px;color:rgba(255,255,255,.88);margin-bottom:14px}
.hero .sub{font-size:15px;color:rgba(255,255,255,.7);margin-bottom:30px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-stats{display:flex;gap:36px;margin-top:36px}
.hero-stats .num{font-size:28px;font-weight:800;color:#7dffc4}
.hero-stats .lbl{font-size:13px;color:rgba(255,255,255,.72)}

/* client simulator */
.simulator{background:#0b0f0e;border-radius:18px;box-shadow:0 30px 70px rgba(0,0,0,.35);overflow:hidden;border:1px solid rgba(255,255,255,.12)}
.sim-titlebar{display:flex;align-items:center;gap:8px;padding:12px 16px;background:#151a19;border-bottom:1px solid #222}
.sim-dot{width:12px;height:12px;border-radius:50%}
.sim-dot.r{background:#ff5f57}.sim-dot.y{background:#febc2e}.sim-dot.g{background:#28c840}
.sim-title{color:#8aa;font-size:12px;margin-left:8px;flex:1}
.sim-body{padding:22px}
.sim-status{display:flex;align-items:center;justify-content:space-between;background:rgba(46,213,138,.12);border:1px solid rgba(46,213,138,.3);border-radius:12px;padding:14px 18px;margin-bottom:18px}
.sim-status .l{display:flex;align-items:center;gap:10px}
.sim-pulse{width:10px;height:10px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 0 rgba(47,213,138,.6);animation:pulse 1.8s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(47,213,138,.5)}70%{box-shadow:0 0 0 12px rgba(47,213,138,0)}100%{box-shadow:0 0 0 0 rgba(47,213,138,0)}}
.sim-status .txt{color:#cfeede;font-size:13px}
.sim-status .node{color:#7dffc4;font-weight:700;font-size:13px}
.sim-node-list{display:flex;flex-direction:column;gap:10px}
.sim-node{display:flex;align-items:center;justify-content:space-between;background:#141a18;border:1px solid #222;border-radius:10px;padding:12px 16px}
.sim-node .flag{font-size:20px}
.sim-node .name{color:#d8e6de;font-size:14px}
.sim-node .ping{color:#7dffc4;font-size:13px;font-weight:600}
.sim-metric{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
.sim-metric .m{background:#141a18;border:1px solid #222;border-radius:10px;padding:12px;text-align:center}
.sim-metric .v{color:#7dffc4;font-size:20px;font-weight:800}
.sim-metric .k{color:#7a8;font-size:11px;margin-top:2px}
.sim-connect{display:block;width:100%;text-align:center;margin-top:18px;padding:13px;border-radius:10px;background:linear-gradient(135deg,var(--c-accent),#0e8a5f);color:#fff;font-weight:700;font-size:15px}

/* notice bar */
.notice{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);padding:18px 22px;margin-top:-36px;position:relative;z-index:5;box-shadow:var(--shadow)}
.notice .t{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--c-warn);margin-bottom:6px}
.notice p{color:var(--c-muted);font-size:14px}

/* feature cards */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);padding:30px;transition:.25s}
.feature:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--c-accent)}
.feature .ic{width:54px;height:54px;border-radius:14px;background:#e7f5ee;display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px}
.feature h3{font-size:19px;margin-bottom:10px}
.feature p{color:var(--c-muted);font-size:15px}

/* compare table */
.compare-wrap{overflow-x:auto;background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);box-shadow:var(--shadow)}
.compare-table{width:100%;border-collapse:collapse;min-width:680px}
.compare-table th,.compare-table td{padding:16px 20px;text-align:center;border-bottom:1px solid var(--c-line);font-size:14px}
.compare-table th{background:#f0f7f3;font-weight:700;color:var(--c-ink);font-size:15px}
.compare-table td:first-child,.compare-table th:first-child{text-align:left;font-weight:600}
.compare-table .yes{color:var(--c-primary);font-weight:700}
.compare-table .no{color:#c0c9c4}
.compare-table tr.hl{background:#eefaf4}

/* news tabs */
.tabs-nav{display:flex;gap:10px;justify-content:center;margin-bottom:32px;flex-wrap:wrap}
.tab-btn{padding:9px 22px;border-radius:999px;border:1px solid var(--c-line);background:#fff;color:var(--c-muted);font-weight:600;font-size:14px;cursor:pointer;transition:.2s}
.tab-btn.active{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden;transition:.25s;display:block}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.news-card .thumb{height:170px;background:#e7f5ee;display:flex;align-items:center;justify-content:center;overflow:hidden}
.news-card .thumb img{width:100%;height:100%;object-fit:cover}
.news-card .body{padding:20px}
.news-card .cat{font-size:12px;color:var(--c-primary);font-weight:600}
.news-card h3{font-size:17px;margin:8px 0;line-height:1.4;color:var(--c-ink)}
.news-card .meta{font-size:12px;color:var(--c-muted)}

/* reviews */
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);padding:28px}
.review .stars{color:#f5a623;font-size:15px;margin-bottom:12px}
.review p{color:var(--c-ink);font-size:15px;margin-bottom:16px}
.review .who{display:flex;align-items:center;gap:12px}
.review .avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,#2fd58a,#0e8a5f);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
.review .who .nm{font-weight:600;font-size:14px}
.review .who .rt{font-size:12px;color:var(--c-muted)}

/* download platforms */
.dl-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.dl-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);padding:30px 20px;text-align:center;transition:.25s;display:block}
.dl-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--c-accent)}
.dl-card .ic{font-size:40px;margin-bottom:14px}
.dl-card h4{font-size:16px;margin-bottom:6px;color:var(--c-ink)}
.dl-card .v{font-size:12px;color:var(--c-muted);margin-bottom:14px}
.dl-card .go{display:inline-block;padding:8px 20px;border-radius:999px;background:var(--c-primary);color:#fff;font-weight:600;font-size:13px}

/* trust */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.trust{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);padding:28px;text-align:center}
.trust .ic{font-size:30px;margin-bottom:12px}
.trust h4{font-size:15px;margin-bottom:6px}
.trust p{font-size:13px;color:var(--c-muted)}

/* scenarios */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);padding:28px}
.scene .ic{font-size:28px;margin-bottom:12px}
.scene h4{font-size:16px;margin-bottom:8px}
.scene p{font-size:14px;color:var(--c-muted)}

/* FAQ */
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);margin-bottom:16px;overflow:hidden}
.faq-q{padding:20px 24px;font-weight:700;font-size:16px;display:flex;align-items:center;gap:12px;cursor:pointer;color:var(--c-ink)}
.faq-q .no{width:28px;height:28px;border-radius:8px;background:#e7f5ee;color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;flex-shrink:0}
.faq-a{padding:0 24px 20px 64px;color:var(--c-muted);font-size:15px}
.faq-a ol{margin-left:18px;display:flex;flex-direction:column;gap:8px}
.faq-a ol li{font-size:15px}

/* CTA */
.cta{background:linear-gradient(135deg,#0b6b47,#0e8a5f);color:#fff;border-radius:22px;padding:56px;text-align:center}
.cta h2{font-size:30px;margin-bottom:14px}
.cta p{color:rgba(255,255,255,.82);margin-bottom:28px;font-size:16px}
.cta .btn-primary{background:#fff;color:var(--c-primary)}

/* footer */
.site-footer{background:#0c1a14;color:#a8bdb2;padding:60px 0 30px;margin-top:72px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-grid h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-grid a{display:block;color:#a8bdb2;font-size:14px;margin-bottom:10px}
.footer-grid a:hover{color:#7dffc4}
.footer-brand{font-size:14px;line-height:1.8}
.footer-bottom{border-top:1px solid #1d2f27;padding-top:24px;text-align:center;font-size:13px;color:#6d8278}
.footer-bottom a{color:#a8bdb2}

/* breadcrumb */
.breadcrumb{background:#fff;border-bottom:1px solid var(--c-line);padding:16px 0;font-size:14px;color:var(--c-muted)}
.breadcrumb a{color:var(--c-muted)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{margin:0 8px;color:#c0c9c4}

/* article */
.article-page{background:#fff}
.article-hero{padding:56px 0 32px;border-bottom:1px solid var(--c-line)}
.article-hero h1{font-size:34px;line-height:1.35;margin-bottom:18px}
.article-meta{display:flex;gap:20px;flex-wrap:wrap;color:var(--c-muted);font-size:14px}
.article-meta .tag{color:var(--c-primary);font-weight:600}
.article-layout{display:grid;grid-template-columns:1fr 320px;gap:48px;padding:40px 0 72px}
.article-body{font-size:16px;line-height:1.9;color:#22332a}
.article-body h2{font-size:24px;margin:36px 0 16px;color:var(--c-ink);padding-left:14px;border-left:4px solid var(--c-accent)}
.article-body p{margin-bottom:18px}
.article-body img{border-radius:12px;margin:20px 0}
.article-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-bottom:20px}
.article-toc{background:#f5faf7;border:1px solid var(--c-line);border-radius:12px;padding:20px;margin-bottom:28px}
.article-toc h4{font-size:14px;margin-bottom:12px;color:var(--c-ink)}
.article-toc a{display:block;font-size:14px;color:var(--c-muted);padding:5px 0;border-left:2px solid transparent;padding-left:12px}
.article-toc a:hover{color:var(--c-primary);border-left-color:var(--c-primary)}
.article-prevnext{display:flex;justify-content:space-between;gap:20px;margin-top:40px;border-top:1px solid var(--c-line);padding-top:24px}
.article-prevnext a{font-size:14px}
.article-sidebar h4{font-size:15px;margin-bottom:16px;color:var(--c-ink)}
.side-card{background:#fff;border:1px solid var(--c-line);border-radius:12px;padding:18px;margin-bottom:24px}
.side-card .hot-item{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--c-line)}
.side-card .hot-item:last-child{border-bottom:0}
.side-card .hot-item .idx{font-weight:800;color:var(--c-accent);font-size:18px}
.side-card .hot-item a{font-size:14px;color:var(--c-ink)}
.side-card .hot-item a:hover{color:var(--c-primary)}
.cat-list a{display:block;padding:8px 0;font-size:14px;color:var(--c-muted);border-bottom:1px solid var(--c-line)}
.cat-list a:hover{color:var(--c-primary)}
.relate-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px}

/* 404 */
.page-404{text-align:center;padding:120px 0;background:#fff}
.page-404 .code{font-size:110px;font-weight:800;color:var(--c-primary);line-height:1}
.page-404 h1{font-size:26px;margin:20px 0 12px}
.page-404 p{color:var(--c-muted);margin-bottom:30px}

/* sitemap html */
.sitemap-list{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);padding:32px}
.sitemap-list h3{margin:20px 0 12px;font-size:18px;color:var(--c-ink)}
.sitemap-list a{display:block;padding:8px 0;font-size:15px;color:var(--c-muted);border-bottom:1px dashed var(--c-line)}
.sitemap-list a:hover{color:var(--c-primary)}

/* responsive */
@media(max-width:900px){
.hero .container{grid-template-columns:1fr}
.nav-links{display:none}
.features-grid,.news-grid,.reviews-grid,.scene-grid{grid-template-columns:1fr 1fr}
.dl-grid{grid-template-columns:repeat(2,1fr)}
.trust-grid{grid-template-columns:1fr 1fr}
.article-layout{grid-template-columns:1fr}
.article-sidebar{order:2}
.footer-grid{grid-template-columns:1fr 1fr}
.relate-grid{grid-template-columns:1fr}
}
@media(max-width:560px){
.features-grid,.news-grid,.reviews-grid,.scene-grid,.dl-grid,.trust-grid{grid-template-columns:1fr}
.hero h1{font-size:32px}
section{padding:48px 0}
}