:root{--navy:#0a1f44;--navy2:#123168;--cyan:#00c2ff;--cyan2:#0095cc;--orange:#ff6b2c;--bg:#f4f7fb;--text:#1a2332;--muted:#5a6b85;--line:#e3e9f2;--white:#fff;--green:#12b76a;--card:#ffffff}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);line-height:1.7;font-size:16px}
a{color:var(--cyan2);text-decoration:none}
a:hover{color:var(--orange)}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
.clearfix:after{content:"";display:block;clear:both}
.skip{position:absolute;left:-9999px;top:0}
/* header */
.header{background:var(--navy);position:sticky;top:0;z-index:100;box-shadow:0 2px 12px rgba(10,31,68,.18)}
.header-in{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:20px}
.logo img{width:30px;height:30px;border-radius:6px}
.logo b{color:var(--cyan)}
.nav{display:flex;align-items:center;gap:6px}
.nav a{color:#d6e2f5;padding:8px 13px;border-radius:8px;font-size:15px;transition:.2s}
.nav a:hover,.nav a.on{color:#fff;background:rgba(0,194,255,.16)}
.nav .cta{margin-left:8px;background:var(--orange);color:#fff;padding:9px 18px;border-radius:22px;font-weight:700}
.nav .cta:hover{background:#ff7f45;color:#fff}
/* hero */
.hero{background:linear-gradient(135deg,#0a1f44 0%,#123168 55%,#0d4f8f 100%);color:#fff;padding:64px 0 72px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(0,194,255,.25),transparent 50%)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;position:relative;z-index:2}
.hero h1{font-size:40px;line-height:1.25;margin:16px 0}
.hero h1 em{font-style:normal;color:var(--cyan)}
.hero .sub{font-size:17px;color:#c7d7ef;max-width:520px;margin-bottom:26px}
.badge{display:inline-block;background:rgba(0,194,255,.15);color:var(--cyan);border:1px solid rgba(0,194,255,.4);padding:4px 14px;border-radius:20px;font-size:13px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.btn{display:inline-block;padding:14px 30px;border-radius:26px;font-weight:700;font-size:16px;text-align:center;transition:.2s}
.btn-pri{background:var(--orange);color:#fff;box-shadow:0 6px 18px rgba(255,107,44,.35)}
.btn-pri:hover{background:#ff7f45;color:#fff;transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.3)}
.btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff}
.hero-stats{display:flex;gap:30px;margin-top:30px;flex-wrap:wrap}
.hero-stats .s b{display:block;font-size:26px;color:#fff}
.hero-stats .s span{font-size:13px;color:#9fb6d8}
/* client simulator */
.sim{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:18px;overflow:hidden;box-shadow:0 20px 50px rgba(0,0,0,.35);backdrop-filter:blur(6px)}
.sim-head{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:rgba(255,255,255,.08);border-bottom:1px solid rgba(255,255,255,.12)}
.sim-head .dots{display:flex;gap:6px}
.sim-head .dots i{width:11px;height:11px;border-radius:50%;display:inline-block}
.sim-head .dots i:nth-child(1){background:#ff5f57}.sim-head .dots i:nth-child(2){background:#febc2e}.sim-head .dots i:nth-child(3){background:#28c840}
.sim-head span{font-size:12px;color:#9fb6d8}
.sim-body{padding:20px}
.sim-connect{background:linear-gradient(90deg,#0a1f44,#123168);border:1px solid rgba(0,194,255,.4);border-radius:14px;padding:20px;text-align:center;margin-bottom:16px}
.sim-big{font-size:15px;color:#c7d7ef;margin-bottom:10px}
.sim-btn{display:inline-block;width:74px;height:74px;border-radius:50%;background:var(--orange);color:#fff;font-size:15px;font-weight:700;line-height:74px;text-align:center;box-shadow:0 0 0 8px rgba(255,107,44,.18),0 10px 24px rgba(255,107,44,.4)}
.sim-status{margin-top:12px;font-size:14px;color:var(--green)}
.sim-row{display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.06);border-radius:10px;padding:12px 14px;margin-bottom:10px;font-size:14px}
.sim-row b{color:#fff}
.sim-row .tag{font-size:12px;padding:2px 10px;border-radius:10px;background:rgba(0,194,255,.2);color:var(--cyan)}
.sim-row .tag.hot{background:rgba(255,107,44,.2);color:#ffab7d}
.sim-meter{height:8px;background:rgba(255,255,255,.12);border-radius:6px;overflow:hidden;margin-top:6px}
.sim-meter i{display:block;height:100%;background:linear-gradient(90deg,var(--cyan),var(--green));width:86%;border-radius:6px}
.sim-foot{display:flex;justify-content:space-between;padding:10px 4px 0;font-size:12px;color:#9fb6d8}
/* section common */
.section{padding:66px 0}
.section.alt{background:#fff}
.sec-head{text-align:center;max-width:760px;margin:0 auto 42px}
.sec-head .kicker{color:var(--cyan2);font-weight:700;font-size:14px;letter-spacing:1px;text-transform:uppercase}
.sec-head h2{font-size:32px;margin:10px 0 14px;color:var(--navy)}
.sec-head p{color:var(--muted);font-size:16px}
/* notice */
.notice{background:#fff;border-bottom:1px solid var(--line)}
.notice-in{display:flex;align-items:center;gap:12px;padding:14px 0;font-size:15px}
.notice-in .badge2{background:var(--orange);color:#fff;padding:3px 10px;border-radius:4px;font-size:12px;font-weight:700;white-space:nowrap}
.notice-in a{color:var(--navy2);font-weight:600}
/* features grid */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px;transition:.25s}
.card:hover{transform:translateY(-5px);box-shadow:0 14px 32px rgba(10,31,68,.1);border-color:#cfe4f7}
.card .ico{width:54px;height:54px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px;background:linear-gradient(135deg,rgba(0,194,255,.12),rgba(0,194,255,.04));color:var(--cyan2)}
.card h3{font-size:19px;margin-bottom:10px;color:var(--navy)}
.card p{color:var(--muted);font-size:15px}
/* compare table */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:#fff}
table.compare{width:100%;border-collapse:collapse;min-width:640px}
table.compare th,table.compare td{padding:15px 16px;text-align:center;border-bottom:1px solid var(--line);font-size:15px}
table.compare thead th{background:var(--navy);color:#fff;font-weight:700}
table.compare thead th.hl{background:var(--cyan2)}
table.compare tbody tr:last-child td{border-bottom:none}
table.compare td:first-child{text-align:left;font-weight:600;color:var(--navy)}
table.compare .yes{color:var(--green);font-weight:700}
table.compare .no{color:#c0c9d6}
table.compare .best{background:rgba(0,194,255,.08)}
/* tabs */
.tabs{display:flex;justify-content:center;gap:10px;margin-bottom:30px;flex-wrap:wrap}
.tabs a{padding:10px 22px;border-radius:22px;background:#fff;border:1px solid var(--line);color:var(--muted);font-weight:600}
.tabs a.on,.tabs a:hover{background:var(--cyan2);color:#fff;border-color:var(--cyan2)}
/* news cards */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.25s;display:block}
.news-card:hover{transform:translateY(-5px);box-shadow:0 14px 32px rgba(10,31,68,.1)}
.news-card img{width:100%;height:170px;object-fit:cover}
.news-card .body{padding:18px}
.news-card .cat{font-size:12px;color:var(--cyan2);font-weight:700}
.news-card h3{font-size:17px;margin:8px 0;color:var(--navy);line-height:1.45}
.news-card .date{font-size:13px;color:var(--muted)}
/* reviews */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px}
.review .stars{color:#ffb400;font-size:16px;margin-bottom:10px}
.review p{color:var(--text);font-size:15px;margin-bottom:14px}
.review .who{display:flex;align-items:center;gap:10px}
.review .who .av{width:40px;height:40px;border-radius:50%;background:var(--navy2);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
.review .who b{display:block;font-size:14px}
.review .who span{font-size:12px;color:var(--muted)}
/* download */
.dl-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.dl-item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 18px;text-align:center;transition:.25s}
.dl-item:hover{transform:translateY(-5px);box-shadow:0 14px 30px rgba(10,31,68,.1)}
.dl-item .pico{font-size:34px;margin-bottom:12px}
.dl-item h4{font-size:17px;margin-bottom:6px;color:var(--navy)}
.dl-item .ver{font-size:12px;color:var(--muted);margin-bottom:14px}
.dl-item .btn{font-size:14px;padding:10px 20px}
/* trust */
.trust{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}
.trust span{background:#fff;border:1px solid var(--line);border-radius:30px;padding:10px 20px;font-size:14px;color:var(--muted);display:flex;align-items:center;gap:8px}
.trust span i{color:var(--green);font-style:normal;font-weight:700}
/* scenario */
.scen-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scen{background:linear-gradient(135deg,var(--navy),var(--navy2));color:#fff;border-radius:16px;padding:30px}
.scen h3{font-size:19px;margin-bottom:10px;color:var(--cyan)}
.scen p{color:#c7d7ef;font-size:15px}
/* faq */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden}
.faq-q{padding:20px 24px;font-weight:700;color:var(--navy);font-size:17px;cursor:pointer}
.faq-q:after{content:"+";float:right;color:var(--cyan2);font-weight:700}
.faq-item[open] .faq-q:after{content:"\2212"}
.faq-a{padding:0 24px 22px;color:var(--muted);font-size:15px}
.faq-a ol{margin:10px 0 0 20px;list-style:decimal}
.faq-a ol li{margin-bottom:6px}
.faq-a h4{color:var(--navy);margin:14px 0 8px;font-size:16px}
/* cta */
.cta-band{background:linear-gradient(120deg,var(--cyan2),var(--cyan));border-radius:22px;padding:50px;text-align:center;color:#fff}
.cta-band h2{font-size:30px;margin-bottom:12px}
.cta-band p{opacity:.92;margin-bottom:24px}
.cta-band .btn-pri{background:#fff;color:var(--cyan2)}
.cta-band .btn-pri:hover{color:var(--cyan2)}
/* footer */
.footer{background:var(--navy);color:#9fb6d8;padding:50px 0 30px;margin-top:60px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px;margin-bottom:30px}
.footer h4{color:#fff;font-size:16px;margin-bottom:14px}
.footer .logo{color:#fff}
.footer p{font-size:14px}
.footer a{color:#9fb6d8;font-size:14px;display:block;margin-bottom:8px}
.footer a:hover{color:var(--cyan)}
.footer .links{display:flex;flex-wrap:wrap;gap:14px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);margin-bottom:16px}
.footer .links a{font-size:13px;display:inline;margin:0}
.footer .copy{font-size:13px;color:#6d82a3}
/* breadcrumb */
.crumb{background:#fff;border-bottom:1px solid var(--line)}
.crumb .container{padding:14px 20px;font-size:14px;color:var(--muted)}
.crumb a{color:var(--cyan2)}
/* article layout */
.article-layout{display:grid;grid-template-columns:1fr 320px;gap:34px;align-items:start}
.article-main{background:#fff;border:1px solid var(--line);border-radius:16px;padding:36px;overflow:hidden}
.article-main h1{font-size:30px;color:var(--navy);line-height:1.4;margin:14px 0}
.article-meta{font-size:14px;color:var(--muted);padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:20px;display:flex;gap:18px;flex-wrap:wrap}
.article-main .lead{font-size:17px;color:var(--text);font-weight:600;border-left:4px solid var(--cyan2);padding:10px 0 10px 16px;background:#f6fbff;margin-bottom:24px}
.article-main h2{font-size:24px;color:var(--navy);margin:30px 0 14px;padding-left:12px;border-left:4px solid var(--cyan2)}
.article-main p{font-size:16px;color:#2a3550;margin-bottom:16px;line-height:1.9}
.article-main figure{margin:24px 0}
.article-main figure img{width:100%;border-radius:12px}
.article-main figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}
.article-main .quote{background:#f6fbff;border:1px solid #d8ecfb;border-radius:10px;padding:18px 22px;margin:20px 0;color:var(--navy2);font-size:15px}
.article-nav{display:flex;justify-content:space-between;gap:14px;margin-top:30px;padding-top:20px;border-top:1px solid var(--line)}
.article-nav a{font-size:14px;color:var(--cyan2)}
.sidebar{display:flex;flex-direction:column;gap:22px}
.side-box{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px}
.side-box h4{font-size:16px;color:var(--navy);margin-bottom:14px;padding-left:10px;border-left:3px solid var(--cyan2)}
.side-box ul li{margin-bottom:10px}
.side-box ul li a{font-size:14px;color:var(--text)}
.side-box ul li a:hover{color:var(--cyan2)}
.side-box .cat a{display:inline-block;margin:0 6px 8px 0;padding:5px 12px;background:#f2f7fd;border-radius:14px;font-size:13px;color:var(--navy2)}
.comments{margin-top:30px}
.comments h4{font-size:18px;color:var(--navy);margin-bottom:16px}
.comment{background:#f8fafd;border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:12px}
.comment b{font-size:14px;color:var(--navy)}
.comment .t{font-size:12px;color:var(--muted);margin-left:8px}
.comment p{font-size:14px;color:var(--text);margin-top:6px}
/* toc */
.toc{background:#f6fbff;border:1px solid #d8ecfb;border-radius:10px;padding:18px 22px;margin-bottom:24px}
.toc b{font-size:15px;color:var(--navy)}
.toc ol{margin:10px 0 0 18px;list-style:decimal}
.toc ol li{margin-bottom:6px;font-size:14px}
.toc ol li a{color:var(--cyan2)}
/* pagination / list */
.list-row{display:flex;gap:22px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;margin-bottom:16px;transition:.2s}
.list-row:hover{box-shadow:0 8px 24px rgba(10,31,68,.08)}
.list-row img{width:200px;height:130px;object-fit:cover;border-radius:10px;flex-shrink:0}
.list-row .meta{font-size:13px;color:var(--muted);margin-bottom:6px}
.list-row h3{font-size:19px;color:var(--navy);margin-bottom:8px}
.list-row p{font-size:14px;color:var(--muted)}
/* 404 */
.notfound{text-align:center;padding:100px 20px}
.notfound .code{font-size:120px;font-weight:800;color:var(--cyan2);line-height:1}
.notfound h1{font-size:28px;color:var(--navy);margin:20px 0 12px}
.notfound p{color:var(--muted);margin-bottom:26px}
/* sitemap */
.sitemap-list{background:#fff;border:1px solid var(--line);border-radius:16px;padding:34px}
.sitemap-list h2{font-size:20px;color:var(--navy);margin:18px 0 10px}
.sitemap-list ul li{margin-bottom:8px}
.sitemap-list ul li a{color:var(--cyan2);font-size:15px}
/* responsive */
@media(max-width:980px){.hero-grid,.article-layout{grid-template-columns:1fr}.grid-3,.review-grid,.scen-grid{grid-template-columns:1fr 1fr}.news-grid{grid-template-columns:1fr 1fr}.dl-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.nav{display:none}.hero h1{font-size:32px}}
@media(max-width:600px){.grid-3,.review-grid,.scen-grid,.news-grid,.dl-grid,.footer-grid{grid-template-columns:1fr}.section{padding:44px 0}.hero{padding:44px 0}}