:root{--p:#0e9f6e;--pd:#0b7a53;--pdd:#0a5c3f;--ac:#10b981;--dark:#0a1f1a;--dark2:#0d2a23;--bg:#f6faf8;--card:#ffffff;--tx:#1e2b26;--muted:#5b6b64;--line:#e2ece7;--warn:#f59e0b;--err:#ef4444;--r:14px;--sh:0 6px 24px rgba(10,60,47,.08)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;color:var(--tx);background:var(--bg);line-height:1.7;font-size:15px;-webkit-font-smoothing:antialiased}
a{color:var(--p);text-decoration:none}
a:hover{color:var(--pd)}
img{max-width:100%;display:block}
.container{max-width:1180px;margin:0 auto;padding:0 22px}
.wrap{max-width:1180px;margin:0 auto;padding:0 22px}

/* nav */
.topbar{background:var(--dark);color:#cfe6dc;font-size:12.5px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:34px}
.topbar a{color:#cfe6dc}
.topbar a:hover{color:#fff}
.nav{background:rgba(10,31,26,.96);backdrop-filter:blur(8px);position:sticky;top:0;z-index:60;border-bottom:1px solid rgba(255,255,255,.06)}
.nav-in{display:flex;align-items:center;height:66px;gap:26px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:19px}
.brand img{width:34px;height:34px;border-radius:8px}
.brand span em{font-style:normal;color:var(--ac)}
.nav-links{display:flex;gap:4px;margin-left:8px;flex:1}
.nav-links a{color:#d7e8e0;font-size:14.5px;padding:8px 14px;border-radius:8px;font-weight:500}
.nav-links a:hover,.nav-links a.on{color:#fff;background:rgba(14,159,110,.18)}
.nav-cta{margin-left:auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;font-weight:600;cursor:pointer;transition:.2s;border:0;font-size:15px}
.btn-p{background:var(--p);color:#fff;padding:11px 22px}
.btn-p:hover{background:var(--pd);color:#fff;transform:translateY(-1px)}
.btn-o{background:transparent;color:var(--p);padding:10px 20px;border:1.5px solid var(--p)}
.btn-o:hover{background:var(--p);color:#fff}
.btn-lg{padding:14px 30px;font-size:16px;border-radius:12px}
.btn-ghost{background:rgba(14,159,110,.12);color:var(--p);padding:10px 20px}
.btn-ghost:hover{background:var(--p);color:#fff}

/* hero */
.hero{background:linear-gradient(160deg,#0a1f1a 0%,#0d2a23 55%,#0f3a2e 100%);color:#eaf6f0;padding:64px 0 80px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 320px at 80% 10%,rgba(16,185,129,.22),transparent 60%),radial-gradient(500px 300px at 10% 90%,rgba(14,159,110,.16),transparent 60%)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;position:relative;z-index:2}
.hero h1{font-size:40px;line-height:1.28;font-weight:800;letter-spacing:-.5px;margin-bottom:16px}
.hero h1 em{font-style:normal;color:var(--ac)}
.hero .sub{font-size:16.5px;color:#bcd8cc;max-width:520px;margin-bottom:22px}
.hero .tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.hero .tag{background:rgba(16,185,129,.14);border:1px solid rgba(16,185,129,.3);color:#8ef0c5;font-size:12.5px;padding:5px 12px;border-radius:20px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:24px}
.hero-stats{display:flex;gap:28px;flex-wrap:wrap}
.hs{text-align:left}
.hs b{display:block;font-size:24px;color:#fff}
.hs span{font-size:12.5px;color:#8fb7a6}

/* client simulator */
.sim{background:#0e221c;border:1px solid rgba(16,185,129,.25);border-radius:16px;overflow:hidden;box-shadow:0 24px 60px rgba(0,0,0,.35)}
.sim-bar{display:flex;align-items:center;gap:8px;background:#0a1713;padding:12px 16px;border-bottom:1px solid rgba(255,255,255,.06)}
.sim-bar i{width:12px;height:12px;border-radius:50%;display:inline-block}
.sim-bar i:nth-child(1){background:#ff5f57}.sim-bar i:nth-child(2){background:#febc2e}.sim-bar i:nth-child(3){background:#28c840}
.sim-bar span{margin-left:10px;color:#8fb7a6;font-size:13px}
.sim-body{padding:22px}
.sim-status{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.sim-dot{width:12px;height:12px;border-radius:50%;background:var(--ac);box-shadow:0 0 0 0 rgba(16,185,129,.6);animation:pulse 1.6s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(16,185,129,.5)}70%{box-shadow:0 0 0 12px rgba(16,185,129,0)}100%{box-shadow:0 0 0 0 rgba(16,185,129,0)}}
.sim-status b{color:#fff;font-size:16px}
.sim-status span{margin-left:auto;color:#8fb7a6;font-size:12.5px}
.sim-server{background:#122a22;border:1px solid rgba(16,185,129,.22);border-radius:10px;padding:12px 14px;display:flex;align-items:center;gap:10px;margin-bottom:14px;color:#eaf6f0}
.sim-server .flag{width:26px;height:18px;border-radius:3px;background:linear-gradient(135deg,#de2910,#de2910);flex:none}
.sim-server small{color:#8fb7a6;display:block;font-size:11.5px}
.sim-server .arrow{margin-left:auto;color:#8fb7a6}
.sim-metrics{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px}
.sim-m{background:#122a22;border-radius:10px;padding:14px;text-align:center}
.sim-m small{color:#8fb7a6;display:block;font-size:11.5px;margin-bottom:4px}
.sim-m b{color:#8ef0c5;font-size:20px;font-weight:700}
.sim-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;background:linear-gradient(90deg,#0e9f6e,#10b981);color:#fff;font-size:16px;font-weight:700;padding:14px;border-radius:10px}
.sim-btn:hover{filter:brightness(1.05);color:#fff}
.sim-foot{display:flex;justify-content:space-between;color:#6e9283;font-size:11.5px;margin-top:12px;padding:0 2px}

/* section */
section{padding:68px 0}
.sec-head{text-align:center;max-width:720px;margin:0 auto 44px}
.sec-head .kicker{display:inline-block;background:rgba(14,159,110,.1);color:var(--p);font-size:13px;font-weight:600;padding:5px 14px;border-radius:20px;margin-bottom:14px}
.sec-head h2{font-size:30px;font-weight:800;letter-spacing:-.4px;margin-bottom:12px}
.sec-head p{color:var(--muted);font-size:15.5px}

/* notice */
.notice{background:#fff;border:1px solid var(--line);border-left:4px solid var(--p);border-radius:10px;padding:16px 20px;margin:-34px auto 0;position:relative;z-index:5;max-width:1180px;box-shadow:var(--sh);display:flex;align-items:center;gap:14px}
.notice .badge{background:var(--p);color:#fff;font-size:12px;font-weight:600;padding:4px 10px;border-radius:6px;flex:none}
.notice p{font-size:14.5px;color:var(--tx)}
.notice a{font-weight:600}

/* features */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.fcard{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:.25s;box-shadow:var(--sh)}
.fcard:hover{transform:translateY(-5px);border-color:var(--p);box-shadow:0 14px 36px rgba(10,60,47,.14)}
.fcard .ic{width:52px;height:52px;border-radius:12px;background:linear-gradient(135deg,#0e9f6e,#10b981);display:flex;align-items:center;justify-content:center;margin-bottom:16px;color:#fff;font-size:24px}
.fcard h3{font-size:18px;margin-bottom:8px}
.fcard p{color:var(--muted);font-size:14px}

/* compare */
.compare{background:#fff}
.cmp-table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--r);overflow:hidden;box-shadow:var(--sh);border:1px solid var(--line)}
.cmp-table th,.cmp-table td{padding:15px 18px;text-align:center;border-bottom:1px solid var(--line);font-size:14px}
.cmp-table th{background:var(--dark);color:#fff;font-weight:600;font-size:14.5px}
.cmp-table td:first-child{text-align:left;font-weight:600;background:#f7fbf9}
.cmp-table tr:last-child td{border-bottom:0}
.cmp-table .yes{color:var(--p);font-weight:700}
.cmp-table .no{color:#c0ccc7}
.cmp-table .hl{background:rgba(14,159,110,.07)}
.cmp-table .hl th{background:var(--p)}

/* news tabs */
.tabs{display:flex;justify-content:center;gap:8px;margin-bottom:30px;flex-wrap:wrap}
.tab{background:#fff;border:1px solid var(--line);color:var(--muted);padding:9px 20px;border-radius:24px;font-size:14px;font-weight:500;cursor:pointer;transition:.2s}
.tab:hover,.tab.on{background:var(--p);color:#fff;border-color:var(--p)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.ncard{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh);transition:.25s}
.ncard:hover{transform:translateY(-4px);box-shadow:0 14px 32px rgba(10,60,47,.14)}
.ncard img{height:170px;width:100%;object-fit:cover}
.ncard .nc-body{padding:18px}
.ncard .nc-tag{font-size:12px;color:var(--p);background:rgba(14,159,110,.1);padding:3px 10px;border-radius:12px;display:inline-block;margin-bottom:10px}
.ncard h3{font-size:15.5px;line-height:1.5;margin-bottom:8px}
.ncard h3 a{color:var(--tx)}
.ncard h3 a:hover{color:var(--p)}
.ncard .nc-meta{font-size:12.5px;color:var(--muted);display:flex;gap:12px}

/* reviews */
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.review{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:var(--sh)}
.review .stars{color:#f59e0b;font-size:15px;margin-bottom:10px;letter-spacing:2px}
.review p{font-size:14px;color:var(--tx);margin-bottom:16px}
.review .who{display:flex;align-items:center;gap:10px}
.review .avatar{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,#0e9f6e,#10b981);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px}
.review .who b{font-size:13.5px;display:block}
.review .who span{font-size:12px;color:var(--muted)}

/* download */
.dl{background:linear-gradient(160deg,#0a1f1a,#0f3a2e);color:#eaf6f0}
.dl .sec-head h2,.dl .sec-head p{color:#eaf6f0}
.dl .sec-head .kicker{background:rgba(16,185,129,.18);color:#8ef0c5}
.dl-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.dl-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:24px 16px;text-align:center;transition:.25s}
.dl-card:hover{background:rgba(16,185,129,.14);border-color:var(--ac);transform:translateY(-4px)}
.dl-card .os{width:54px;height:54px;border-radius:14px;background:rgba(16,185,129,.16);display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:26px}
.dl-card b{display:block;color:#fff;font-size:16px;margin-bottom:6px}
.dl-card span{display:block;color:#8fb7a6;font-size:12.5px;margin-bottom:14px}
.dl-card a{display:inline-block;background:var(--p);color:#fff;font-size:13px;font-weight:600;padding:8px 18px;border-radius:8px}
.dl-card a:hover{background:var(--ac);color:#fff}

/* trust */
.trust{background:#fff}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.trust-item{padding:20px}
.trust-item .ic{font-size:34px;margin-bottom:10px}
.trust-item b{display:block;font-size:16px;margin-bottom:6px}
.trust-item span{font-size:13px;color:var(--muted)}

/* scenarios */
.sc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.sc-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;box-shadow:var(--sh);position:relative;overflow:hidden}
.sc-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--p),var(--ac))}
.sc-card h3{font-size:17px;margin-bottom:10px}
.sc-card p{font-size:14px;color:var(--muted)}

/* faq */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:14px;overflow:hidden;box-shadow:var(--sh)}
.faq-q{display:flex;justify-content:space-between;align-items:center;padding:18px 22px;cursor:pointer;font-weight:600;font-size:15.5px}
.faq-q .plus{font-size:22px;color:var(--p);flex:none;transition:.25s}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:1200px}
.faq-item.open .plus{transform:rotate(45deg)}
.faq-a-inner{padding:0 22px 20px;color:var(--muted);font-size:14.5px}
.faq-a-inner ol{margin-left:20px}
.faq-a-inner ol li{margin-bottom:8px}
.faq-item summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;padding:18px 22px;font-weight:600;font-size:15.5px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{font-size:22px;color:var(--p);flex:none;transition:.25s}
.faq-item[open] summary .plus{transform:rotate(45deg)}
.faq-item .faq-a-inner{padding:0 22px 20px}

/* cta */
.cta{background:linear-gradient(140deg,#0e9f6e,#0b7a53);color:#fff;text-align:center;padding:72px 0;border-radius:0}
.cta h2{font-size:32px;font-weight:800;margin-bottom:14px}
.cta p{color:rgba(255,255,255,.9);font-size:16px;margin-bottom:28px;max-width:560px;margin-left:auto;margin-right:auto}
.cta .btn-w{background:#fff;color:var(--p);padding:14px 32px;font-size:16px;font-weight:700}
.cta .btn-w:hover{background:#f0fdf7}

/* footer */
footer{background:var(--dark);color:#9fc0b2;padding:56px 0 24px;font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;margin-bottom:36px}
.foot-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:14px}
.foot-brand img{width:30px;height:30px;border-radius:7px}
footer h4{color:#fff;font-size:15px;margin-bottom:16px}
footer ul{list-style:none}
footer ul li{margin-bottom:10px}
footer a{color:#9fc0b2}
footer a:hover{color:#8ef0c5}
.foot-links{display:flex;flex-wrap:wrap;gap:8px 16px;padding:18px 0;border-top:1px solid rgba(255,255,255,.08);margin-bottom:16px}
.foot-links a{color:#6e9283;font-size:12.5px}
.foot-links a:hover{color:#8ef0c5}
.copyright{text-align:center;color:#6e9283;font-size:12.5px;padding-top:16px;border-top:1px solid rgba(255,255,255,.08)}
.copyright a{color:#8fb7a6}

/* page sub-hero */
.page-hero{background:linear-gradient(160deg,#0a1f1a,#0f3a2e);color:#eaf6f0;padding:52px 0 60px}
.page-hero h1{font-size:34px;font-weight:800;margin-bottom:10px}
.page-hero p{color:#bcd8cc;max-width:640px}

/* breadcrumb */
.crumb{background:#fff;border-bottom:1px solid var(--line);padding:12px 0;font-size:13px;color:var(--muted)}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--p)}
.crumb span{color:var(--p);font-weight:600}

/* article */
.article-wrap{display:grid;grid-template-columns:1fr 300px;gap:36px;padding:44px 0 60px;align-items:start}
.article{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:38px;box-shadow:var(--sh)}
.article .a-meta{display:flex;gap:16px;color:var(--muted);font-size:13px;margin:14px 0 20px;flex-wrap:wrap}
.article .a-tag{background:rgba(14,159,110,.1);color:var(--p);padding:3px 12px;border-radius:12px;font-size:12px}
.article h2{margin:30px 0 14px;font-size:22px;padding-left:12px;border-left:4px solid var(--p)}
.article p{margin-bottom:16px;color:#33443d;font-size:15.5px;line-height:1.85}
.article img{border-radius:10px;margin:20px 0}
.article figure{margin:20px 0}
.article figcaption{font-size:12.5px;color:var(--muted);text-align:center;margin-top:8px}
.article table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14px}
.article table th,.article table td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article table th{background:#f0f7f3;font-weight:600}
.article blockquote{border-left:4px solid var(--p);background:#f6faf8;padding:16px 20px;margin:20px 0;color:#43554d;border-radius:0 8px 8px 0}
.article .toc{background:#f6faf8;border:1px solid var(--line);border-radius:10px;padding:18px 22px;margin-bottom:26px}
.article .toc b{display:block;margin-bottom:10px;color:var(--p)}
.article .toc ol{margin-left:20px;color:var(--muted);font-size:14px}
.article .toc a{color:var(--muted)}
.article .toc a:hover{color:var(--p)}
.a-nav{display:flex;justify-content:space-between;gap:16px;margin-top:32px;padding-top:22px;border-top:1px solid var(--line);font-size:14px}
.a-nav a{max-width:48%}
.comments{margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.comments h3{font-size:19px;margin-bottom:18px}
.cmt{display:flex;gap:12px;padding:16px 0;border-bottom:1px solid #f0f5f2}
.cmt .avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#0e9f6e,#10b981);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex:none;font-size:14px}
.cmt b{font-size:13.5px;display:block}
.cmt .cmt-time{font-size:12px;color:var(--muted)}
.cmt p{font-size:14px;color:#33443d;margin-top:6px}

/* sidebar */
.sidebar{position:sticky;top:86px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;margin-bottom:20px;box-shadow:var(--sh)}
.side-card h4{font-size:15.5px;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--p);display:inline-block}
.side-card ul{list-style:none}
.side-card ul li{margin-bottom:11px;font-size:14px}
.side-card ul li a{color:var(--tx)}
.side-card ul li a:hover{color:var(--p)}
.side-card .hot-num{color:var(--p);font-weight:700;margin-right:6px}
.side-card .cat-tag{display:inline-block;background:#f0f7f3;color:var(--muted);padding:5px 12px;border-radius:14px;font-size:12.5px;margin:0 6px 8px 0}
.side-card .cat-tag:hover{background:var(--p);color:#fff}

/* list page */
.list-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;padding:44px 0 60px}
.pagination{display:flex;justify-content:center;gap:8px;padding-bottom:50px}
.pagination a{background:#fff;border:1px solid var(--line);color:var(--tx);padding:8px 14px;border-radius:8px;font-size:14px}
.pagination a.on,.pagination a:hover{background:var(--p);color:#fff;border-color:var(--p)}

/* 404 */
.err404{text-align:center;padding:110px 0;background:linear-gradient(160deg,#0a1f1a,#0f3a2e);color:#eaf6f0}
.err404 .code{font-size:110px;font-weight:800;color:var(--ac);line-height:1}
.err404 h1{font-size:28px;margin:16px 0}
.err404 p{color:#bcd8cc;margin-bottom:30px}
.err404 .count{color:#8ef0c5;font-weight:700;font-size:20px}

/* responsive */
@media(max-width:960px){
.hero-grid{grid-template-columns:1fr}
.nav-links{display:none}
.news-grid,.features-grid,.reviews-grid,.sc-grid,.list-grid{grid-template-columns:repeat(2,1fr)}
.dl-grid{grid-template-columns:repeat(2,1fr)}
.trust-grid{grid-template-columns:repeat(2,1fr)}
.foot-grid{grid-template-columns:1fr 1fr}
.article-wrap{grid-template-columns:1fr}
.sidebar{position:static}
}
@media(max-width:600px){
.news-grid,.features-grid,.reviews-grid,.sc-grid,.list-grid,.dl-grid,.trust-grid,.foot-grid{grid-template-columns:1fr}
.hero h1{font-size:30px}
.article{padding:22px}
}