:root{--ink:#0a1526;--ink2:#1b2b45;--muted:#5d6d87;--line:#e2e8f3;--bg:#f4f7fc;--brand:#1652f0;--brand2:#0aa8c8;--teal:#0fb8a6;--red:#e2453c;--green:#0f9f6e;--warn:#ff8a3d;--r:16px;--sh:0 6px 24px rgba(16,42,90,.08);--shh:0 16px 38px rgba(16,42,90,.15)}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.7}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{color:#0d3cb8}
h1,h2,h3,h4{line-height:1.3;margin:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 26px;border-radius:12px;background:linear-gradient(100deg,var(--brand),var(--brand2));color:#fff;font-weight:600;font-size:15px;border:0;cursor:pointer;box-shadow:0 8px 20px rgba(22,82,240,.26);transition:transform .18s ease,box-shadow .18s ease,filter .18s}
.btn:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(22,82,240,.32);filter:saturate(1.08)}
.btn--ghost{background:#fff;color:var(--brand);border:1.5px solid #c9d8ff;box-shadow:none}
.btn--ghost:hover{color:var(--brand);border-color:var(--brand);background:#f5f8ff}
.btn--sm{min-height:40px;padding:0 18px;font-size:14px;border-radius:10px;box-shadow:none}
.topbar{position:fixed;top:0;left:0;right:0;z-index:80;background:rgba(255,255,255,.86);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid rgba(226,232,243,.9);transition:background .25s,box-shadow .25s}
.topbar.is-stuck{background:rgba(10,21,38,.92);border-bottom-color:rgba(255,255,255,.08);box-shadow:0 10px 30px rgba(6,16,34,.22)}
.topbar.is-stuck .nav-link,.topbar.is-stuck .brand-txt b{color:#fff}
.topbar.is-stuck .nav-in .menu a:hover{color:#8fc0ff}
.nav-in{display:flex;align-items:center;gap:18px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand img{width:38px;height:38px;border-radius:10px}
.brand-txt b{display:block;font-size:18px;letter-spacing:.5px;color:var(--ink);line-height:1.2}
.brand-txt span{display:block;font-size:11px;color:var(--muted);letter-spacing:1.6px;text-transform:uppercase}
.brand-slogan{flex:0 1 auto;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:clip;font-size:13px;line-height:1;color:var(--muted);letter-spacing:.4px;padding-left:14px;margin-left:-6px;border-left:1px solid var(--line)}
.topbar.is-stuck .brand-slogan{color:rgba(255,255,255,.72);border-left-color:rgba(255,255,255,.16)}
.menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-item{position:relative}
.nav-item>input{position:absolute;opacity:0;width:1px;height:1px}
.nav-link{display:flex;align-items:center;gap:6px;height:46px;padding:0 14px;border-radius:10px;color:var(--ink2);font-size:15px;font-weight:500;cursor:pointer;white-space:nowrap}
.nav-link:hover{background:#eef3ff;color:var(--brand)}
.nav-link .arw{display:inline-block;font-size:10px;transition:transform .25s;color:var(--muted)}
.dd-panel{position:absolute;top:100%;left:0;min-width:260px;background:#fff;border-radius:14px;box-shadow:0 18px 44px rgba(16,42,90,.18);border:1px solid var(--line);padding:10px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.22s ease}
.dd-panel a{display:block;padding:10px 12px;border-radius:9px;color:var(--ink2);font-size:14.5px}
.dd-panel a:hover{background:#f1f5ff;color:var(--brand)}
.nav-item:hover .dd-panel,.nav-item>input:checked~.dd-panel{opacity:1;visibility:visible;transform:translateY(0)}
.nav-item:hover .arw,.nav-item>input:checked~.nav-link .arw{transform:rotate(180deg)}
.nav-cta{flex:0 0 auto;margin-left:6px}
.burger{display:none;margin-left:auto;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;cursor:pointer}
.burger span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink)}
.burger span::before{top:-6px}.burger span::after{top:6px}
#navtog{display:none}
.hero{padding:108px 0 62px;background:radial-gradient(900px 420px at 78% 0%,#e6efff 0%,rgba(244,247,252,0) 62%),linear-gradient(180deg,#f8fbff,#f4f7fc)}
.hero-in{display:grid;grid-template-columns:1.02fr .98fr;gap:44px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid #d9e4fb;color:#2a5bd7;font-size:13px;font-weight:600;padding:6px 14px;border-radius:99px;box-shadow:var(--sh)}
.h1{font-size:44px;line-height:1.22;margin:18px 0 16px;letter-spacing:-.5px}
.h1 em{font-style:normal;color:var(--brand);background:linear-gradient(90deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-sub{color:var(--muted);font-size:17px;max-width:560px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin:26px 0 30px}
.hero-facts{display:flex;gap:26px;flex-wrap:wrap;border-top:1px dashed #d8e2f4;padding-top:20px}
.fact b{display:block;font-size:24px;color:var(--ink);letter-spacing:-.4px}
.fact span{font-size:13px;color:var(--muted)}
.console{background:#fff;border-radius:20px;box-shadow:0 22px 60px rgba(16,42,90,.16);border:1px solid #e7eefb;overflow:hidden}
.console-top{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 18px;background:linear-gradient(100deg,#0c1a33,#16305c);color:#fff}
.console-title{font-size:14px;font-weight:600;letter-spacing:.4px;display:flex;align-items:center;gap:8px}
.dot{width:8px;height:8px;border-radius:50%;background:#33d6a6;box-shadow:0 0 0 3px rgba(51,214,166,.22)}
.console-form{display:flex;gap:8px;padding:16px 18px 8px}
.console-input{flex:1;min-height:44px;border:1.5px solid var(--line);border-radius:11px;padding:0 14px;font-size:15px;font-family:inherit;color:var(--ink);background:#fbfcff}
.console-input:focus{outline:none;border-color:#9db8ff;box-shadow:0 0 0 4px rgba(22,82,240,.1)}
.console-btn{min-width:88px}
.console-status{padding:0 18px 12px;font-size:12.5px;color:var(--muted)}
.balls{display:flex;gap:9px;flex-wrap:wrap;padding:4px 18px 14px}
.ball{width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;color:#fff;background:#2b3d5c;box-shadow:inset 0 -6px 12px rgba(0,0,0,.16),0 4px 10px rgba(16,42,90,.16)}
.ball.red{background:linear-gradient(160deg,#f4574d,#cf2f26)}
.ball.blue{background:linear-gradient(160deg,#3f86f5,#1e4fd0)}
.ball.green{background:linear-gradient(160deg,#25b57f,#0a7d55)}
.ball--sp{outline:3px solid #ffd36b;outline-offset:2px}
.demo-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:0 18px 16px}
.ds{background:#f6f9ff;border:1px solid #e6eefc;border-radius:12px;padding:10px;text-align:center}
.ds b{display:block;font-size:18px;color:var(--ink2)}
.ds span{font-size:12px;color:var(--muted)}
.bars{padding:2px 18px 18px}
.bars .bl{display:flex;align-items:center;gap:10px;margin-bottom:7px;font-size:12.5px;color:var(--muted)}
.bars .bl i{display:block;height:8px;border-radius:6px;background:linear-gradient(90deg,var(--brand),var(--brand2));min-width:4px;transition:width .5s ease}
.bars .bl b{width:56px;color:var(--ink2);font-weight:600}
.bars .bl em{font-style:normal;color:var(--ink2);font-weight:600}
.sec{padding:74px 0}
.sec--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:720px;margin:0 auto 44px;text-align:center}
.tagline{display:inline-block;font-size:12.5px;letter-spacing:2px;text-transform:uppercase;color:var(--brand);font-weight:700;margin-bottom:10px}
.h2{font-size:32px;letter-spacing:-.4px}
.lead{color:var(--muted);margin-top:12px;font-size:16px}
.grid{display:grid;gap:20px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:var(--sh);transition:transform .22s ease,box-shadow .22s ease;height:100%}
.card:hover{transform:translateY(-4px);box-shadow:var(--shh)}
.card-ico{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:21px;background:linear-gradient(135deg,#eaf0ff,#e2f8f6);margin-bottom:14px}
.card h3{font-size:17.5px;margin-bottom:8px}
.card p{color:var(--muted);font-size:14.5px}
.scn h3{display:flex;align-items:center;gap:9px}
.scn .em{font-size:20px}
.mock{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--sh);overflow:hidden}
.mock-top{display:flex;align-items:center;gap:8px;padding:12px 16px;background:#f7faff;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.mock-top b{color:var(--ink2);font-size:13.5px}
.mock-body{padding:16px}
.mock-row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 0;border-bottom:1px dashed #e8eefa;font-size:13.5px;color:var(--ink2)}
.mock-row:last-child{border-bottom:0}
.mock-chip{background:#eef4ff;color:#2450c9;border-radius:8px;padding:3px 9px;font-size:12px;font-weight:600}
.mock-num{font-variant-numeric:tabular-nums;font-weight:700;color:var(--ink)}
.mock-trend{display:flex;align-items:flex-end;gap:6px;height:64px;margin-top:10px}
.mock-trend i{display:block;width:14px;border-radius:5px 5px 0 0;background:linear-gradient(180deg,#7aa6ff,#1652f0)}
.mock-trend i:nth-child(even){background:linear-gradient(180deg,#7ee0d4,#0fb8a6)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px 22px;box-shadow:var(--sh);position:relative}
.step-n{width:34px;height:34px;border-radius:10px;background:linear-gradient(120deg,var(--brand),var(--brand2));color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.step h3{font-size:16.5px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14.5px}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
.plan{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px 24px;box-shadow:var(--sh);display:flex;flex-direction:column}
.plan--hot{border:2px solid var(--brand);box-shadow:0 22px 46px rgba(22,82,240,.18);position:relative}
.plan--hot::before{content:"最受欢迎";position:absolute;top:-14px;left:24px;background:linear-gradient(100deg,var(--brand),var(--brand2));color:#fff;font-size:12px;font-weight:700;padding:5px 12px;border-radius:99px}
.plan h3{font-size:18px}
.plan .p-desc{color:var(--muted);font-size:13.5px;margin-top:4px}
.plan-price{font-size:30px;font-weight:800;margin:16px 0 4px;letter-spacing:-1px}
.plan-price small{font-size:13px;color:var(--muted);font-weight:500}
.plan ul{margin:16px 0 22px;display:grid;gap:10px}
.plan li{font-size:14px;color:var(--ink2);padding-left:24px;position:relative}
.plan li::before{content:"✓";position:absolute;left:0;top:0;color:var(--teal);font-weight:700}
.plan-cta{margin-top:auto}
.plan-cta .btn{width:100%}
.faq{max-width:900px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;box-shadow:var(--sh);overflow:hidden}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 54px 18px 20px;font-weight:600;font-size:15.5px;position:relative}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:20px;color:var(--brand);font-weight:400;transition:transform .2s}
.faq-item[open] summary::after{content:"–"}
.faq-item[open]{border-color:#c7d8ff}
.faq-a{padding:0 20px 20px;color:var(--muted);font-size:14.5px}
.faq-a ol{counter-reset:s;display:grid;gap:7px;margin:10px 0 0}
.faq-a ol li{counter-increment:s;padding-left:26px;position:relative}
.faq-a ol li::before{content:counter(s);position:absolute;left:0;top:2px;width:18px;height:18px;border-radius:50%;background:#eef4ff;color:var(--brand);font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center}
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--sh)}
.rv-head{display:flex;align-items:center;gap:11px;margin-bottom:12px}
.avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#e2ecff,#d6f5f0);color:#2450c9;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:15px;flex:0 0 auto}
.rv-name{font-weight:600;font-size:14.5px}
.rv-meta{font-size:12px;color:var(--muted)}
.stars{color:#ffb020;font-size:13px;letter-spacing:1px;margin-top:2px}
.review p{font-size:14.5px;color:var(--ink2)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--sh);transition:transform .22s,box-shadow .22s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shh)}
.news-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.nc-body{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1}
.nc-tag{font-size:12px;font-weight:700;color:var(--brand);letter-spacing:.5px}
.nc-body h3{font-size:16.5px}
.nc-body h3 a{color:var(--ink)}
.nc-body h3 a:hover{color:var(--brand)}
.nc-meta{display:flex;justify-content:space-between;font-size:12.5px;color:var(--muted);margin-top:auto;padding-top:6px}
.cta{padding:64px 0;background:linear-gradient(100deg,#0b1a33,#18406f)}
.cta-in{text-align:center;color:#fff}
.cta h2{font-size:32px;letter-spacing:-.4px}
.cta p{color:#b9cbe6;margin:14px auto 26px;max-width:640px}
.cta .btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.cta .btn--ghost:hover{background:rgba(255,255,255,.1);color:#fff}
.footer{background:#08111f;color:#93a6c2;padding:58px 0 0}
.f-in{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:36px}
.f-brand{display:flex;align-items:flex-start;gap:12px}
.f-brand img{width:44px;height:44px;border-radius:12px}
.f-brand b{display:block;color:#fff;font-size:17px;margin-bottom:6px}
.f-brand p{font-size:13px;line-height:1.75}
.f-col h4{color:#fff;font-size:14.5px;margin-bottom:14px}
.f-col a{display:block;color:#93a6c2;font-size:13.5px;padding:5px 0}
.f-col a:hover{color:#fff}
.f-bottom{border-top:1px solid rgba(255,255,255,.09);padding:18px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:#7b8ea9}
.f-bottom a{color:#a9bcd8}
.to-top{position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;background:linear-gradient(120deg,var(--brand),var(--brand2));color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 24px rgba(22,82,240,.35);font-size:17px;z-index:70}
.to-top:hover{color:#fff}
.crumb{font-size:13px;color:var(--muted);padding:96px 0 0}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb span{margin:0 7px;color:#b7c4d8}
.crumb b{color:var(--ink2);font-weight:500}
.page-head{padding:16px 0 30px;border-bottom:1px solid var(--line);margin-bottom:36px}
.page-head h1{font-size:36px;letter-spacing:-.5px;margin-bottom:12px}
.page-head p{color:var(--muted);max-width:760px}
.art-wrap{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:40px;padding-bottom:70px;align-items:start}
.art-main{background:#fff;border:1px solid var(--line);border-radius:20px;padding:34px;box-shadow:var(--sh);min-width:0}
.art-head .art-tag{display:inline-block;font-size:12px;font-weight:700;color:#2450c9;background:#eef4ff;border-radius:8px;padding:4px 10px;margin-bottom:14px}
.art-head h1{font-size:31px;letter-spacing:-.4px;line-height:1.35}
.art-meta{display:flex;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin:16px 0 22px;border-bottom:1px solid var(--line);padding-bottom:16px}
.art-cover{border-radius:14px;overflow:hidden;margin-bottom:26px}
.art-body{font-size:16px;color:#23324b}
.art-body p{margin-bottom:20px;line-height:1.95}
.art-body h2{font-size:22px;margin:34px 0 14px;padding-left:13px;border-left:4px solid var(--brand);scroll-margin-top:90px}
.art-body h3{font-size:18px;margin:24px 0 10px}
.art-body ul,.art-body ol{margin:0 0 20px;padding-left:0}
.art-body ul li,.art-body ol li{position:relative;padding-left:22px;margin-bottom:9px;line-height:1.9}
.art-body ul li::before{content:"";position:absolute;left:4px;top:13px;width:6px;height:6px;border-radius:50%;background:var(--brand2)}
.art-body ol{counter-reset:a}
.art-body ol li{counter-increment:a;padding-left:28px}
.art-body ol li::before{content:counter(a);position:absolute;left:0;top:4px;width:19px;height:19px;border-radius:6px;background:#eef4ff;color:var(--brand);font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center}
.figure{margin:26px 0}
.figure img{border-radius:14px;width:100%}
.figure figcaption{font-size:12.5px;color:var(--muted);margin-top:9px;text-align:center}
.quote{margin:26px 0;padding:20px 22px;background:#f6f9ff;border-left:4px solid var(--brand2);border-radius:0 12px 12px 0}
.quote p{font-size:15.5px;color:var(--ink2);margin-bottom:10px}
.quote cite{font-style:normal;font-size:13px;color:var(--muted)}
.data-table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14px}
.data-table caption{caption-side:top;text-align:left;font-size:13px;color:var(--muted);padding-bottom:8px}
.data-table th,.data-table td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.data-table th{background:#f4f8ff;color:var(--ink2);font-weight:600}
.data-table td{font-variant-numeric:tabular-nums}
.art-tags{display:flex;gap:8px;flex-wrap:wrap;margin:30px 0 0;padding-top:20px;border-top:1px solid var(--line)}
.art-tags a{font-size:12.5px;color:#2450c9;background:#eef4ff;border-radius:8px;padding:5px 11px}
.art-nav{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-top:26px}
.art-nav a{font-size:14px;color:var(--ink2);background:#f6f9ff;border:1px solid #e6eefc;border-radius:10px;padding:10px 14px;max-width:48%}
.art-nav a:hover{color:var(--brand);border-color:#c9d8ff}
.related{margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.related h2{font-size:16px;margin-bottom:14px}
.related ul{display:grid;gap:10px}
.related li a{font-size:14.5px;color:var(--ink2)}
.related li a:hover{color:var(--brand)}
.comments{margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.comments h2{font-size:16px;margin-bottom:16px}
.cmt{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed #e8eefa}
.cmt:last-child{border-bottom:0}
.cmt-body{flex:1}
.cmt-name{font-size:14px;font-weight:600;color:var(--ink)}
.cmt-date{font-size:12px;color:var(--muted);margin-left:8px;font-weight:400}
.cmt p{font-size:14.5px;color:var(--ink2);margin-top:5px}
.art-side{position:sticky;top:88px;display:grid;gap:18px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:var(--sh)}
.side-t{font-size:14.5px;font-weight:700;padding-left:11px;border-left:3px solid var(--brand);margin-bottom:14px}
.toc{position:relative;padding-left:18px}
.toc::before{content:"";position:absolute;left:4px;top:6px;bottom:6px;width:2px;background:#e6eefc}
.toc a{display:block;font-size:13px;color:var(--muted);padding:6px 0;position:relative}
.toc a::before{content:"";position:absolute;left:-18px;top:14px;width:10px;height:10px;border-radius:50%;background:#fff;border:2px solid #cfdcf5}
.toc a.is-now{color:var(--brand);font-weight:700}
.toc a.is-now::before{border-color:var(--brand);background:var(--brand)}
.hot{display:grid;gap:12px}
.hot li{display:flex;gap:10px;align-items:flex-start}
.badge{flex:0 0 auto;width:20px;height:20px;border-radius:6px;background:#e9eef7;color:#6a7c96;font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;transition:transform .18s}
.hot li:nth-child(1) .badge{background:linear-gradient(135deg,#1652f0,#0aa8c8);color:#fff}
.hot li:nth-child(2) .badge{background:linear-gradient(135deg,#ff9a3d,#f4700f);color:#fff}
.hot li:nth-child(3) .badge{background:linear-gradient(135deg,#ffce54,#d9a012);color:#fff}
.hot li:hover .badge{transform:scale(1.12)}
.hot a{font-size:13.5px;color:var(--ink2);line-height:1.55}
.hot a:hover{color:var(--brand)}
.cats{display:flex;gap:8px;flex-wrap:wrap}
.cat{font-size:12.5px;color:var(--muted);border:1px solid var(--line);border-radius:99px;padding:5px 12px;background:#fbfcff}
.cat:hover{color:var(--brand);border-color:var(--brand);background:#fff}
.prose{background:#fff;border:1px solid var(--line);border-radius:20px;padding:34px;box-shadow:var(--sh);max-width:900px;margin:0 auto 70px}
.prose h2{font-size:20px;margin:26px 0 12px;padding-left:12px;border-left:4px solid var(--brand)}
.prose h2:first-child{margin-top:0}
.prose p{color:var(--ink2);margin-bottom:16px}
.prose ul,.prose ol{margin:0 0 16px}
.prose ul li,.prose ol li{padding-left:20px;position:relative;margin-bottom:8px;color:var(--ink2)}
.prose ul li::before{content:"";position:absolute;left:4px;top:12px;width:6px;height:6px;border-radius:50%;background:var(--brand2)}
.prose ol{counter-reset:b}
.prose ol li{counter-increment:b;padding-left:28px}
.prose ol li::before{content:counter(b);position:absolute;left:0;top:3px;width:19px;height:19px;border-radius:6px;background:#eef4ff;color:var(--brand);font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center}
.note{background:#fff8f0;border:1px solid #ffe0c2;color:#8a5520;border-radius:12px;padding:14px 16px;font-size:13.5px;margin:18px 0}
.dl-hero{padding:16px 0 40px}
.dl-hero .hero-in{padding-top:0}
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.dl-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:var(--sh);display:flex;flex-direction:column}
.dl-card--hot{border:2px solid var(--brand)}
.dl-ver{font-size:13px;color:var(--muted);letter-spacing:.5px}
.dl-card h3{font-size:19px;margin:6px 0 10px}
.dl-size{display:flex;gap:14px;font-size:12.5px;color:var(--muted);margin-bottom:14px;flex-wrap:wrap}
.dl-card ul{display:grid;gap:9px;margin-bottom:20px}
.dl-card li{font-size:13.8px;color:var(--ink2);padding-left:22px;position:relative}
.dl-card li::before{content:"✓";position:absolute;left:0;color:var(--teal);font-weight:700}
.dl-card .btn{width:100%;margin-top:auto}
.spec{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.spec li{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;box-shadow:var(--sh);font-size:13.5px;color:var(--ink2)}
.spec b{display:block;font-size:12.5px;color:var(--muted);font-weight:500;margin-bottom:4px}
.install{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.notfound{min-height:64vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:120px 20px 60px}
.notfound .code{font-size:92px;font-weight:800;letter-spacing:-4px;background:linear-gradient(100deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1}
.notfound h1{font-size:26px;margin:14px 0 10px}
.notfound p{color:var(--muted);margin-bottom:22px}
.sitemap-wrap{padding:20px 0 70px}
.sm-group{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:var(--sh);margin-bottom:18px}
.sm-group h2{font-size:17px;margin-bottom:14px;padding-left:11px;border-left:3px solid var(--brand)}
.sm-group ul{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 20px}
.sm-group a{font-size:14px;color:var(--ink2)}
.sm-group a:hover{color:var(--brand)}
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.js .reveal{opacity:1;transform:none;transition:none}}
@media (max-width:992px){
.nav-in{height:62px;gap:12px}
.brand-slogan{font-size:12px;padding-left:10px;margin-left:-2px}
.burger{display:flex}
.menu{position:fixed;top:62px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:10px 16px 18px;border-bottom:1px solid var(--line);box-shadow:0 18px 34px rgba(16,42,90,.14);display:none;max-height:calc(100vh - 62px);overflow:auto}
#navtog:checked~.menu{display:flex}
.nav-item{border-bottom:1px dashed #e8eefa}
.nav-item:last-child{border-bottom:0}
.nav-link{height:50px;justify-content:space-between;width:100%}
.dd-panel{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:0 0 8px 8px;display:none;min-width:0}
.nav-item:hover .dd-panel{display:none}
.nav-item>input:checked~.dd-panel{display:block}
.nav-item>input:checked~.nav-link .arw{transform:rotate(180deg)}
.nav-cta{display:none}
.hero{padding:86px 0 46px}
.hero-in{grid-template-columns:1fr;gap:32px}
.h1{font-size:34px}
.hero-sub{font-size:15.5px}
.sec{padding:54px 0}
.h2{font-size:26px}
.grid--3,.reviews,.news-grid,.plans,.steps,.dl-grid,.spec,.install{grid-template-columns:repeat(2,1fr)}
.install{grid-template-columns:repeat(2,1fr)}
.f-in{grid-template-columns:1fr 1fr;gap:26px}
.art-wrap{grid-template-columns:1fr;gap:24px}
.art-side{position:static;grid-template-columns:1fr}
.art-main{padding:26px}
.art-head h1{font-size:25px}
.crumb{padding-top:84px}
.sm-group ul{grid-template-columns:1fr}
.data-table{display:block;overflow-x:auto}
}
@media (max-width:768px){
.h1{font-size:29px}
.page-head h1{font-size:27px}
.plan-price{font-size:26px}
.cta h2{font-size:25px}
.demo-stats{grid-template-columns:repeat(2,1fr)}
.hero-facts{gap:18px}
.fact b{font-size:20px}
}
@media (max-width:480px){
.wrap{padding:0 15px}
.h1{font-size:25px}
.h2{font-size:22px}
.lead{font-size:14.5px}
.grid--2,.grid--3,.reviews,.news-grid,.plans,.steps,.dl-grid,.spec,.install,.f-in{grid-template-columns:1fr}
.ball{width:40px;height:40px;font-size:14px}
.balls{gap:7px}
.art-main,.prose{padding:18px}
.card,.step{padding:18px}
.btn{width:100%}
.hero-btns .btn{width:100%}
.console-form{flex-wrap:wrap}
.console-btn{width:100%}
.art-nav a{max-width:100%}
.brand-txt span{display:none}
.brand-slogan{font-size:11px;padding-left:7px;margin-left:0}
}

/* 状态行预留高度，避免数据到达时高度跳动 */
#demoMsg{min-height:34px;margin:0}