:root{--green-600:#16a34a;--green-700:#15803d;--green-800:#166534;--green-900:#14532d;--green-50:#f0fdf4;--green-100:#dcfce7;--teal-600:#0d9488;--amber-500:#f59e0b;--ink:#0f172a;--muted:#475569;--soft:#64748b;--line:#e2e8f0;--card:#ffffff;--bg:#f8fafc;--radius:16px;--shadow:0 1px 3px rgba(15,23,42,.08),0 8px 24px rgba(15,23,42,.06);--shadow-lg:0 16px 48px rgba(20,83,45,.16)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}a{color:var(--green-700);text-decoration:none}a:hover{color:var(--green-600)}img{max-width:100%;height:auto;display:block}ul,ol{padding-left:1.3rem}.container{max-width:1200px;margin:0 auto;padding:0 24px}.skip{position:absolute;left:-9999px;top:0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;border-radius:999px;font-weight:700;font-size:16px;line-height:1;transition:transform .15s ease,box-shadow .15s ease,background .15s ease;border:2px solid transparent;cursor:pointer}.btn:hover{transform:translateY(-2px)}.btn-primary{background:var(--green-600);color:#fff;box-shadow:0 8px 20px rgba(22,163,74,.35)}.btn-primary:hover{background:var(--green-700);color:#fff;box-shadow:0 12px 28px rgba(22,163,74,.42)}.btn-outline{background:transparent;color:var(--green-700);border-color:var(--green-600)}.btn-outline:hover{background:var(--green-50)}.btn-white{background:#fff;color:var(--green-800);border-color:#fff}.btn-white:hover{background:var(--green-50)}.btn-sm{padding:9px 18px;font-size:14px}.btn-lg{padding:15px 34px;font-size:18px}.tag{display:inline-block;padding:4px 12px;border-radius:999px;background:var(--green-100);color:var(--green-800);font-size:13px;font-weight:600}.tag-outline{border:1px solid var(--green-600);background:transparent;color:var(--green-700)}.section{padding:72px 0}.section-tight{padding:48px 0}.sec-head{text-align:center;max-width:720px;margin:0 auto 44px}.sec-head h2{font-size:34px;line-height:1.25;letter-spacing:-.02em;margin-bottom:14px}.sec-head p{color:var(--muted);font-size:17px}.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--green-600);margin-bottom:12px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.grid{display:grid;gap:24px}.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}.g5{grid-template-columns:repeat(5,1fr)}@media(max-width:960px){.g2,.g3,.g4{grid-template-columns:repeat(2,1fr)}.g5{grid-template-columns:repeat(2,1fr)}}@media(max-width:640px){.g2,.g3,.g4,.g5{grid-template-columns:1fr}.section{padding:48px 0}.sec-head h2{font-size:26px}}

/* Header */
.site-header{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:19px;color:var(--ink)}.brand img{width:34px;height:34px;border-radius:8px}.brand em{font-style:normal;color:var(--green-600)}.nav-links{display:flex;align-items:center;gap:6px}.nav-links a{padding:8px 13px;border-radius:8px;font-weight:600;font-size:15px;color:var(--ink)}.nav-links a:hover{background:var(--green-50);color:var(--green-700)}.nav-cta{margin-left:8px}@media(max-width:860px){.nav-links{display:none}}

/* Hero */
.hero{background:linear-gradient(135deg,#052e16 0%,#14532d 45%,#0d9488 100%);color:#fff;padding:72px 0 88px;position:relative;overflow:hidden}.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(1200px 500px at 80% -10%,rgba(34,197,94,.35),transparent 60%)}.hero .container{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}@media(max-width:900px){.hero .container{grid-template-columns:1fr}}.hero h1{font-size:46px;line-height:1.15;letter-spacing:-.02em;margin:16px 0 18px;font-weight:800}.hero h1 .hl{color:#6ee7a0}.hero .lead{font-size:18px;color:#d1fae5;max-width:520px;margin-bottom:28px}.hero-actions{display:flex;gap:14px;flex-wrap:wrap}.hero-meta{display:flex;gap:28px;margin-top:34px;flex-wrap:wrap}.hero-meta .m{display:flex;flex-direction:column}.hero-meta .m b{font-size:26px;font-weight:800}.hero-meta .m span{font-size:13px;color:#a7f3d0}

/* Client simulator */
.sim{background:linear-gradient(180deg,#0b1220,#0f172a);border:1px solid rgba(255,255,255,.1);border-radius:20px;box-shadow:var(--shadow-lg);overflow:hidden}.sim-bar{display:flex;align-items:center;gap:6px;padding:12px 16px;background:rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.08)}.sim-bar i{width:12px;height:12px;border-radius:50%;display:inline-block}.sim-bar .r{background:#f87171}.sim-bar .y{background:#fbbf24}.sim-bar .g{background:#34d399}.sim-bar .tt{margin-left:10px;color:#cbd5e1;font-size:13px;font-weight:600}.sim-body{padding:20px}.sim-status{display:flex;align-items:center;justify-content:space-between;background:linear-gradient(90deg,rgba(16,185,129,.15),rgba(13,148,136,.15));border:1px solid rgba(52,211,153,.3);border-radius:14px;padding:16px}.sim-status .l{display:flex;align-items:center;gap:10px}.sim-status .dot{width:12px;height:12px;border-radius:50%;background:#34d399;box-shadow:0 0 0 5px rgba(52,211,153,.25);animation:pulse 2s infinite}.sim-status b{font-size:16px}.sim-status .ip{font-family:ui-monospace,monospace;color:#94a3b8;font-size:13px}.sim-status .ping{color:#34d399;font-weight:700;font-size:14px}@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(52,211,153,.4)}70%{box-shadow:0 0 0 8px rgba(52,211,153,0)}100%{box-shadow:0 0 0 0 rgba(52,211,153,0)}}.sim-chart{display:flex;align-items:flex-end;gap:4px;height:74px;margin:18px 0;padding:0 4px}.sim-chart span{flex:1;background:linear-gradient(180deg,#34d399,#0d9488);border-radius:3px 3px 0 0;opacity:.9}.sim-node{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border:1px solid rgba(255,255,255,.08);border-radius:12px;margin-bottom:8px;background:rgba(255,255,255,.03)}.sim-node .f{display:flex;align-items:center;gap:10px}.sim-node .flag{width:26px;height:26px;border-radius:6px;background:var(--green-600);display:flex;align-items:center;justify-content:center;font-size:13px}.sim-node .nm{font-size:14px;font-weight:600}.sim-node .sp{font-size:12px;color:#6ee7b7}.sim-node.sel{border-color:rgba(52,211,153,.5);background:rgba(16,185,129,.1)}.sim-node .badge{font-size:11px;color:#34d399;font-weight:700}.sim-connect{width:100%;padding:14px;border-radius:12px;background:linear-gradient(90deg,#16a34a,#0d9488);color:#fff;border:none;font-size:16px;font-weight:800;cursor:pointer;text-align:center;display:block}.sim-connect:hover{filter:brightness(1.08)}

/* Announcement */
.notice{background:var(--amber-500);color:#3b2a00;text-align:center;padding:10px 16px;font-size:14px;font-weight:600}.notice a{color:#3b2a00;text-decoration:underline}

/* Feature cards */
.feat{position:relative;padding:26px;transition:transform .18s ease,box-shadow .18s ease}.feat:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.feat .ic{width:52px;height:52px;border-radius:14px;background:var(--green-50);border:1px solid var(--green-100);display:flex;align-items:center;justify-content:center;margin-bottom:16px;font-size:24px}.feat h3{font-size:19px;margin-bottom:8px}.feat p{color:var(--muted);font-size:15px}

/* Compare table */
.compare{overflow-x:auto}.compare table{width:100%;border-collapse:collapse;min-width:640px}.compare th,.compare td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line);font-size:15px}.compare th{background:var(--green-50);color:var(--green-800);font-weight:700}.compare td:first-child{font-weight:600}.compare .yes{color:var(--green-600);font-weight:700}.compare .no{color:#cbd5e1}.compare .self{background:#f0fdf4}

/* News tabs */
.tabs{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:30px}.tabs a{padding:9px 18px;border-radius:999px;border:1px solid var(--line);font-weight:600;font-size:14px;color:var(--muted)}.tabs a.active,.tabs a:hover{background:var(--green-600);color:#fff;border-color:var(--green-600)}.news-card{overflow:hidden}.news-card .thumb{height:180px;background:linear-gradient(135deg,#16a34a,#0d9488);display:flex;align-items:center;justify-content:center}.news-card .thumb svg{width:56px;height:56px}.news-card .bd{padding:20px}.news-card .date{font-size:13px;color:var(--soft)}.news-card h3{font-size:17px;margin:8px 0;line-height:1.4}.news-card h3 a{color:var(--ink)}.news-card h3 a:hover{color:var(--green-700)}.news-card p{font-size:14px;color:var(--muted)}

/* Testimonials */
.quote{padding:26px}.quote .stars{color:var(--amber-500);letter-spacing:2px;margin-bottom:12px}.quote p{font-size:15px;color:var(--ink);margin-bottom:16px}.quote .who{display:flex;align-items:center;gap:12px}.quote .ava{width:42px;height:42px;border-radius:50%;background:var(--green-100);color:var(--green-800);display:flex;align-items:center;justify-content:center;font-weight:800}.quote .who b{display:block;font-size:15px}.quote .who span{font-size:13px;color:var(--soft)}

/* Download */
.dl-card{padding:28px;text-align:center;transition:transform .18s ease}.dl-card:hover{transform:translateY(-5px)}.dl-card .ic{width:64px;height:64px;border-radius:18px;background:var(--green-50);border:1px solid var(--green-100);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:30px}.dl-card h3{font-size:18px;margin-bottom:6px}.dl-card p{font-size:13px;color:var(--soft);margin-bottom:18px}.dl-card .btn{width:100%}

/* Trust */
.trust{background:linear-gradient(135deg,#052e16,#14532d);color:#fff}.trust .sec-head h2{color:#fff}.trust .sec-head p{color:#a7f3d0}.trust-item{text-align:center;padding:20px}.trust-item .n{font-size:34px;font-weight:800;color:#6ee7a0}.trust-item .l{font-size:14px;color:#d1fae5}

/* Scenes */
.scene{padding:24px;border-left:4px solid var(--green-600)}.scene h3{font-size:17px;margin-bottom:8px}.scene p{font-size:14px;color:var(--muted)}

/* FAQ */
.faq-item{border:1px solid var(--line);border-radius:14px;margin-bottom:14px;background:#fff;overflow:hidden}.faq-item summary{padding:18px 22px;font-weight:700;font-size:16px;cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary::after{content:"+";font-size:22px;color:var(--green-600);transition:transform .2s}.faq-item[open] summary::after{transform:rotate(45deg)}.faq-item .a{padding:0 22px 20px;color:var(--muted);font-size:15px}.faq-item .a ol,.faq-item .a ul{margin:8px 0 0}.faq-item .a li{margin-bottom:6px}

/* CTA */
.cta{background:linear-gradient(135deg,#16a34a,#0d9488);color:#fff;border-radius:24px;padding:56px 40px;text-align:center}.cta h2{font-size:32px;margin-bottom:14px}.cta p{color:#d1fae5;font-size:17px;margin-bottom:26px}.cta .btn-white{color:var(--green-800)}

/* Footer */
.site-footer{background:#0b1220;color:#94a3b8;padding:56px 0 0}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}@media(max-width:860px){.footer-grid{grid-template-columns:1fr 1fr}}.footer-grid h4{color:#fff;font-size:16px;margin-bottom:16px}.footer-grid a{display:block;color:#94a3b8;font-size:14px;margin-bottom:10px}.footer-grid a:hover{color:#6ee7a0}.footer-brand{color:#cbd5e1;font-size:14px}.footer-brand img{width:34px;height:34px;border-radius:8px;margin-bottom:12px}.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}.footer-bottom a{color:#94a3b8}

/* Breadcrumb */
.breadcrumb{font-size:13px;color:var(--soft);padding:18px 0 0}.breadcrumb a{color:var(--green-700)}.breadcrumb span{margin:0 6px}

/* Page hero (inner) */
.page-hero{background:linear-gradient(135deg,#052e16,#14532d);color:#fff;padding:56px 0}.page-hero h1{font-size:34px;margin-bottom:12px}.page-hero p{color:#a7f3d0;font-size:16px;max-width:680px}

/* Article */
.article-wrap{display:grid;grid-template-columns:1fr 300px;gap:40px;padding:40px 0 64px}@media(max-width:960px){.article-wrap{grid-template-columns:1fr}}.article-body{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:40px;box-shadow:var(--shadow)}.article-body h1{font-size:30px;line-height:1.3;margin:12px 0}.article-body h2{font-size:22px;margin:30px 0 14px;padding-left:14px;border-left:4px solid var(--green-600)}.article-body p{margin-bottom:16px;color:#1e293b}.article-body img{border-radius:12px;margin:18px 0}.article-body .meta{font-size:13px;color:var(--soft);margin-bottom:6px}.article-toc{background:var(--green-50);border:1px solid var(--green-100);border-radius:12px;padding:18px 20px;margin:20px 0}.article-toc b{display:block;margin-bottom:8px;color:var(--green-800)}.article-toc a{display:block;font-size:14px;color:var(--green-700);padding:3px 0}.sidebar .widget{background:#fff;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:1px solid var(--line)}.sidebar .widget a{display:block;font-size:14px;color:var(--muted);padding:7px 0;border-bottom:1px dashed var(--line)}.sidebar .widget a:hover{color:var(--green-700)}.hot-num{display:inline-block;width:22px;height:22px;border-radius:6px;background:var(--green-100);color:var(--green-800);text-align:center;line-height:22px;font-size:12px;font-weight:700;margin-right:8px}.prev-next{display:flex;justify-content:space-between;gap:16px;margin-top:30px;padding-top:20px;border-top:1px solid var(--line)}.prev-next a{flex:1;font-size:14px;color:var(--green-700)}.prev-next .pn{font-size:12px;color:var(--soft);display:block}.related{grid-column:1/-1}.related .grid{grid-template-columns:repeat(3,1fr)}@media(max-width:900px){.related .grid{grid-template-columns:1fr}}

/* Comments */
.comment{border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:14px}.comment .stars{color:var(--amber-500);font-size:14px}.comment p{font-size:14px;margin:8px 0}.comment .who{font-size:13px;color:var(--soft)}

/* Sitemap */
.sitemap-list a{display:block;padding:7px 0;color:var(--green-700)}.sitemap-list h3{margin:20px 0 8px;color:var(--green-800)}

/* 404 */
.err{min-height:70vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:60px 24px}.err .code{font-size:120px;font-weight:800;line-height:1;color:var(--green-600)}.err h1{font-size:28px;margin:12px 0}.err p{color:var(--muted);margin-bottom:26px}.err .count{font-weight:800;color:var(--green-600)}

/* Badges / misc */
.center{text-align:center}.mt{margin-top:24px}.mb{margin-bottom:24px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}