*{margin:0;padding:0;box-sizing:border-box}
:root{--green:#16a34a;--green-dark:#0f7a3d;--green-light:#e8f7ee;--lime:#65d98a;--ink:#0f2318;--sub:#5b6f63;--bg:#f5f9f6;--card:#ffffff;--line:#e3ece6;--gold:#f59e0b;--blue:#0ea5e9;--radius:16px;--shadow:0 6px 24px rgba(15,58,35,.08)}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;height:auto;display:block}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
h1,h2,h3,h4{line-height:1.3;font-weight:700}
.section{padding:72px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 44px}
.section-head .tag{display:inline-block;background:var(--green-light);color:var(--green-dark);font-size:13px;font-weight:600;padding:5px 14px;border-radius:999px;margin-bottom:14px}
.section-head h2{font-size:34px;margin-bottom:12px}
.section-head p{color:var(--sub);font-size:16px}
/* header */
.topbar{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--green-dark)}
.brand img{width:36px;height:36px;border-radius:8px}
.nav-links{display:flex;align-items:center;gap:28px;font-size:15px;color:var(--ink)}
.nav-links a{position:relative;transition:color .2s}
.nav-links a:hover{color:var(--green)}
.nav-cta{display:inline-flex;align-items:center;gap:6px;background:var(--green);color:#fff;padding:10px 20px;border-radius:999px;font-weight:600;font-size:15px;transition:background .2s}
.nav-cta:hover{background:var(--green-dark)}
/* hero */
.hero{position:relative;overflow:hidden;background:radial-gradient(1200px 600px at 70% -10%,#d9f4e4 0%,transparent 55%),linear-gradient(180deg,#f0faf3 0%,#f5f9f6 100%);padding:64px 0 72px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1{font-size:46px;letter-spacing:-.5px;margin:14px 0 18px}
.hero h1 .hl{color:var(--green)}
.hero .lead{color:var(--sub);font-size:18px;max-width:520px;margin-bottom:28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:999px;font-weight:700;font-size:16px;transition:all .2s;border:2px solid transparent}
.btn-primary{background:var(--green);color:#fff;box-shadow:0 8px 20px rgba(22,163,74,.3)}
.btn-primary:hover{background:var(--green-dark);transform:translateY(-2px)}
.btn-ghost{background:#fff;color:var(--green-dark);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--green)}
.hero-meta{display:flex;gap:26px;margin-top:30px;color:var(--sub);font-size:14px}
.hero-meta b{display:block;color:var(--ink);font-size:22px}
/* client simulator */
.simulator{background:#0c1f15;border-radius:20px;box-shadow:0 24px 60px rgba(8,40,20,.35);overflow:hidden;border:1px solid #163c28}
.sim-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;background:#10291b;border-bottom:1px solid #1c3a29}
.sim-dot{width:11px;height:11px;border-radius:50%}
.sim-bar .addr{flex:1;background:#0a1a11;border-radius:8px;color:#7fd4a0;font-size:12px;padding:5px 12px;text-align:center;font-family:monospace}
.sim-body{padding:20px}
.sim-status{display:flex;align-items:center;justify-content:space-between;background:linear-gradient(135deg,#16a34a,#0f7a3d);color:#fff;border-radius:14px;padding:18px 20px;margin-bottom:18px}
.sim-status .s-label{font-size:13px;opacity:.9}
.sim-status .s-big{font-size:24px;font-weight:800;margin-top:2px}
.sim-connect{display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--green-dark);font-weight:700;padding:10px 22px;border-radius:999px;font-size:14px}
.sim-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:18px}
.sim-stat{background:#132c1f;border-radius:12px;padding:14px;text-align:center}
.sim-stat .num{color:#65d98a;font-size:20px;font-weight:800;font-family:monospace}
.sim-stat .cap{color:#8fbfa3;font-size:12px;margin-top:3px}
.sim-list{display:flex;flex-direction:column;gap:10px}
.sim-node{display:flex;align-items:center;gap:12px;background:#132c1f;border-radius:10px;padding:11px 14px;color:#cde8d9;font-size:13px}
.sim-node .flag{width:26px;height:18px;border-radius:3px;flex:none}
.sim-node .ping{margin-left:auto;color:#65d98a;font-family:monospace;font-size:12px}
/* notice */
.notice-wrap{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px 26px;margin-top:-44px;position:relative;z-index:5;box-shadow:var(--shadow)}
.notice-wrap h3{display:flex;align-items:center;gap:8px;font-size:17px;margin-bottom:12px;color:var(--green-dark)}
.notice-list{list-style:none}
.notice-list li{display:flex;gap:10px;padding:7px 0;color:var(--sub);font-size:14px;border-bottom:1px dashed var(--line)}
.notice-list li:last-child{border-bottom:none}
.notice-list .d{color:var(--green);font-weight:600;flex:none;font-family:monospace}
/* features */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:all .25s}
.feature:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#bfe6cd}
.feature .icon{width:52px;height:52px;border-radius:14px;background:var(--green-light);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:16px}
.feature h3{font-size:19px;margin-bottom:8px}
.feature p{color:var(--sub);font-size:14.5px}
/* compare */
.compare-table{background:var(--card);border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.compare-table table{width:100%;border-collapse:collapse;font-size:14.5px}
.compare-table th,.compare-table td{padding:15px 18px;text-align:center;border-bottom:1px solid var(--line)}
.compare-table thead th{background:var(--green-light);color:var(--green-dark);font-weight:700}
.compare-table tbody td:first-child{text-align:left;font-weight:600}
.compare-table .yes{color:var(--green);font-weight:700}
.compare-table .no{color:#c5cfc9}
.compare-table tr:last-child td{border-bottom:none}
/* news tabs */
.tabs{display:flex;justify-content:center;gap:10px;margin-bottom:30px;flex-wrap:wrap}
.tab{display:inline-flex;padding:9px 20px;border-radius:999px;background:var(--card);border:1px solid var(--line);font-size:14px;font-weight:600;color:var(--sub);cursor:pointer;transition:all .2s}
.tab.active{background:var(--green);color:#fff;border-color:var(--green)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:all .25s}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.news-card .thumb{height:170px;background:linear-gradient(135deg,#d9f4e4,#a7e0c0);display:flex;align-items:center;justify-content:center;color:var(--green-dark);font-weight:700;font-size:14px}
.news-card .body{padding:18px}
.news-card .meta{font-size:12px;color:var(--sub);margin-bottom:8px}
.news-card h4{font-size:16px;line-height:1.4}
.news-card h4 a:hover{color:var(--green)}
/* reviews */
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.review{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.review .stars{color:var(--gold);letter-spacing:2px;margin-bottom:12px}
.review p{color:var(--sub);font-size:14.5px;margin-bottom:16px}
.review .user{display:flex;align-items:center;gap:10px}
.review .avatar{width:40px;height:40px;border-radius:50%;background:var(--green-light);display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--green-dark)}
.review .user b{font-size:14px;display:block}
.review .user span{font-size:12px;color:var(--sub)}
/* download */
.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;transition:all .25s}
.dl-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#bfe6cd}
.dl-card .icon{font-size:38px;margin-bottom:12px}
.dl-card h4{font-size:16px;margin-bottom:6px}
.dl-card .ver{font-size:12px;color:var(--sub);margin-bottom:16px}
.dl-card a.btn{font-size:14px;padding:10px 18px}
/* trust */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.trust{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;text-align:center}
.trust .icon{font-size:32px;margin-bottom:10px}
.trust b{display:block;font-size:18px;margin-bottom:4px}
.trust span{color:var(--sub);font-size:13.5px}
/* scenario */
.scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scenario{position:relative;border-radius:var(--radius);overflow:hidden;padding:30px;min-height:180px;background:linear-gradient(135deg,#eafaf0,#d3f0de);border:1px solid var(--line)}
.scenario h4{font-size:20px;margin-bottom:8px}
.scenario p{color:var(--sub);font-size:14.5px}
/* faq */
.faq{max-width:820px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden}
.faq-q{padding:20px 24px;font-weight:700;font-size:16px;cursor:pointer;display:flex;justify-content:space-between;align-items:center}
.faq-q:hover{color:var(--green)}
.faq-a{padding:0 24px 22px;color:var(--sub);font-size:15px;display:none}
.faq-a ol{margin-left:20px}
.faq-a li{margin-bottom:8px}
.faq-item.open .faq-a{display:block}
.faq-item.open .faq-q{color:var(--green)}
/* cta */
.cta{background:linear-gradient(135deg,#0f7a3d,#16a34a);border-radius:24px;padding:60px 40px;text-align:center;color:#fff}
.cta h2{font-size:34px;margin-bottom:12px}
.cta p{opacity:.9;margin-bottom:28px}
.cta .btn{background:#fff;color:var(--green-dark)}
/* footer */
.footer{background:#0c1f15;color:#a8c4b5;padding:56px 0 24px;margin-top:72px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;margin-bottom:36px}
.footer h4{color:#fff;font-size:15px;margin-bottom:14px}
.footer a{display:block;font-size:14px;padding:4px 0;color:#a8c4b5}
.footer a:hover{color:#fff}
.footer .brand{color:#fff;margin-bottom:12px}
.footer .desc{font-size:13.5px;max-width:280px}
.footer-bottom{border-top:1px solid #1c3a29;padding-top:20px;text-align:center;font-size:13px;color:#6f8d7e}
.footer-bottom a{color:#a8c4b5}
/* breadcrumb */
.crumb{background:var(--green-light);padding:14px 0;font-size:14px;color:var(--sub)}
.crumb a{color:var(--green-dark);font-weight:600}
.crumb .sep{margin:0 8px}
/* article */
.article-layout{display:grid;grid-template-columns:1fr 320px;gap:40px;padding:40px 0 60px}
.article-main{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:44px;min-width:0}
.article-main h1{font-size:32px;margin-bottom:16px}
.article-meta{color:var(--sub);font-size:14px;margin-bottom:24px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.article-meta span{margin-right:18px}
.article-body{font-size:16px;line-height:1.9;color:#2a3d33}
.article-body h2{font-size:24px;margin:32px 0 14px;padding-left:14px;border-left:4px solid var(--green)}
.article-body p{margin-bottom:18px}
.article-body img{border-radius:12px;margin:22px 0}
.article-body .figcaption{font-size:13px;color:var(--sub);text-align:center;margin-top:-14px;margin-bottom:22px}
.toc{background:var(--green-light);border-radius:12px;padding:20px 24px;margin-bottom:28px}
.toc h5{font-size:14px;margin-bottom:10px;color:var(--green-dark)}
.toc ol{margin-left:18px;font-size:14px}
.toc a{color:var(--green-dark)}
.toc a:hover{text-decoration:underline}
/* sidebar */
.sidebar .widget{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-bottom:22px}
.sidebar .widget h4{font-size:16px;margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid var(--green-light)}
.sidebar .widget a{display:block;font-size:14px;color:var(--sub);padding:6px 0;border-bottom:1px dashed var(--line)}
.sidebar .widget a:hover{color:var(--green)}
.sidebar .widget a:last-child{border-bottom:none}
.hot-num{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;background:var(--green-light);color:var(--green-dark);border-radius:5px;font-size:12px;font-weight:700;margin-right:8px}
/* pager */
.pager{display:flex;justify-content:space-between;margin-top:32px;padding-top:20px;border-top:1px solid var(--line);gap:12px}
.pager a{flex:1;background:var(--green-light);color:var(--green-dark);padding:16px 20px;border-radius:12px;font-size:14px;font-weight:600}
.pager a:hover{background:#d5f0e0}
.pager a.next{text-align:right}
/* related */
.related{margin-top:24px}
.related h4{font-size:18px;margin-bottom:16px}
/* comment */
.comments{margin-top:32px}
.comments h4{font-size:18px;margin-bottom:16px}
.comment{background:var(--bg);border-radius:12px;padding:16px 20px;margin-bottom:14px}
.comment .c-user{font-weight:700;font-size:14px;color:var(--green-dark)}
.comment .c-time{font-size:12px;color:var(--sub);margin-left:8px}
.comment p{font-size:14.5px;color:var(--sub);margin-top:6px}
/* sitemap page */
.sitemap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.sitemap-col{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.sitemap-col h3{font-size:17px;margin-bottom:14px;color:var(--green-dark)}
.sitemap-col a{display:block;font-size:14px;color:var(--sub);padding:5px 0}
.sitemap-col a:hover{color:var(--green)}
/* 404 */
.err-wrap{min-height:70vh;display:flex;align-items:center;justify-content:center;text-align:center}
.err-code{font-size:110px;font-weight:800;color:var(--green);line-height:1}
.err-wrap h1{font-size:26px;margin:16px 0 8px}
.err-wrap p{color:var(--sub);margin-bottom:26px}
@media(max-width:1024px){.hero-grid{grid-template-columns:1fr}.features-grid,.news-grid,.reviews-grid,.scenario-grid,.trust-grid{grid-template-columns:repeat(2,1fr)}.download-grid{grid-template-columns:repeat(3,1fr)}.article-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.nav-links{display:none}.hero h1{font-size:32px}.features-grid,.news-grid,.reviews-grid,.scenario-grid,.trust-grid,.download-grid{grid-template-columns:1fr}.section{padding:48px 0}.article-main{padding:24px}.footer-grid{grid-template-columns:1fr}}