:root{
  --ink:#0B171F;
  --ink-2:#0E1E28;
  --ink-3:#152A35;
  --paper:#F4F5F2;
  --white:#ffffff;
  --teal:#0E8378;
  --teal-lite:#3EC9B8;
  --amber:#C07A2B;
  --text:#16222A;
  --muted:#5A6A70;
  --line:#DBDFD9;
  --text-d:#DCE7E8;
  --muted-d:#92A5AA;
  --line-d:rgba(255,255,255,.14);
  --maxw:1200px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.015em;line-height:1.2}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- 通用 ---------- */
.tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;color:var(--muted)}
.tag i{width:8px;height:8px;background:var(--teal);display:inline-block;flex:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 22px;font-size:15px;font-weight:500;border:1px solid transparent;border-radius:3px;transition:background .18s,border-color .18s,color .18s}
.btn-primary{background:var(--teal);color:#fff}
.btn-primary:hover{background:#0a6d64}
.btn-ghost{border-color:rgba(255,255,255,.32);color:#fff}
.btn-ghost:hover{border-color:rgba(255,255,255,.7);background:rgba(255,255,255,.06)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#123241}
.btn-outline{border-color:var(--line);color:var(--text)}
.btn-outline:hover{border-color:var(--teal);color:var(--teal)}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--teal);outline-offset:3px}

/* ---------- 头部 ---------- */
.site-head{position:sticky;top:0;z-index:60;background:rgba(244,245,242,.96);border-bottom:1px solid var(--line);backdrop-filter:saturate(120%) blur(6px)}
.head-inner{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{width:30px;height:30px;flex:none;display:grid;place-items:center;background:var(--ink);border-radius:2px}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-text strong{font-size:17px;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:10px;color:var(--muted);letter-spacing:.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-desk{display:none;align-items:center;gap:26px;font-size:15px}
.nav-desk a{color:#2A3740;padding:6px 0;border-bottom:1px solid transparent}
.nav-desk a:hover{color:var(--teal);border-bottom-color:var(--teal)}
.nav-desk a.is-active{color:var(--teal);border-bottom-color:var(--teal)}
.nav-desk .btn{min-height:40px;padding:0 18px;font-size:14px;border-bottom:0!important;color:#fff}
.nav-toggle{width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--line);border-radius:2px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink)}
.nav-toggle span::before{top:-6px}.nav-toggle span::after{top:6px}
.nav-mobile{display:none;padding:8px 20px 20px;border-top:1px solid var(--line)}
.nav-mobile a{display:block;padding:12px 0;font-size:15px;border-bottom:1px solid #E7EAE5}
.nav-mobile a:last-child{border-bottom:0}
.nav-mobile.is-open{display:block}

/* ---------- Hero ---------- */
.hero{position:relative;background:#07121A;color:var(--text-d);overflow:hidden}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 55%;opacity:.72}
.hero-veil{position:absolute;inset:0;background:
  linear-gradient(180deg,rgba(6,17,24,.94) 0%,rgba(6,17,24,.72) 45%,rgba(6,17,24,.9) 100%),
  linear-gradient(90deg,rgba(6,17,24,.94) 0%,rgba(6,17,24,.4) 60%,rgba(6,17,24,.8) 100%)}
.hero-grid{position:absolute;inset:0;background-image:
  linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),
  linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:72px 72px;mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%)}
.hero-body{position:relative;z-index:2;padding:56px 0 40px;min-height:calc(100vh - 64px);display:flex;flex-direction:column;justify-content:center;gap:32px}
.hero-top{display:grid;gap:28px}
.hero-badge{display:inline-flex;align-items:center;gap:10px;font-size:13px;color:#BFD6D6;letter-spacing:.02em}
.hero-badge i{width:22px;height:1px;background:var(--teal-lite);display:inline-block}
.hero h1{font-size:clamp(34px,8.4vw,64px);line-height:1.14;color:#fff;max-width:14em}
.hero h1 .accent{color:var(--teal-lite)}
.hero-lead{font-size:clamp(15px,3.7vw,18px);line-height:1.85;color:#C6D6D8;max-width:44ch;margin-top:16px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-cta .btn{flex:1 1 auto;min-width:150px}
.hero-side{display:flex;flex-direction:column;gap:14px}
.live-card{background:rgba(10,24,32,.82);border:1px solid var(--line-d);border-radius:4px;padding:16px 18px}
.live-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.1)}
.live-head strong{font-size:14px;font-weight:500;color:#E6F0F0}
.live-head span{font-size:11px;color:#7E9499}
.live-kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;padding:14px 0 12px}
.live-kpi span{display:block;font-size:11px;color:#82989D;line-height:1.6}
.live-kpi b{font-size:22px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.live-kpi b i{font-style:normal;font-size:12px;font-weight:400;color:var(--teal-lite);margin-left:2px}
.spark{width:100%;height:52px;display:block}
.live-foot{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:#7E9499;padding-top:8px}
.live-foot .dot{display:inline-flex;align-items:center;gap:6px}
.live-foot .dot::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal-lite);box-shadow:0 0 0 3px rgba(62,201,184,.16)}
.hero-stats{position:relative;z-index:2;border-top:1px solid var(--line-d);padding:20px 0 40px;display:grid;grid-template-columns:repeat(2,1fr);gap:18px 16px}
.hstat strong{display:block;font-size:17px;font-weight:700;color:#fff;line-height:1.4}
.hstat span{font-size:12px;color:#93A8AB;line-height:1.6}

/* ---------- 区块 ---------- */
.section{padding:56px 0}
.section.tight{padding:40px 0}
.section-head{max-width:720px;margin-bottom:32px}
.section-head .tag{margin-bottom:14px}
.section-head h2{font-size:clamp(26px,5.4vw,40px)}
.section-head p{margin-top:14px;font-size:16px;color:var(--muted);max-width:52ch;line-height:1.8}
.dark{background:var(--ink);color:var(--text-d);position:relative;overflow:hidden}
.dark .section-head h2{color:#fff}
.dark .section-head p{color:#AFBFC2}
.dark .tag{color:#93A8AB}
.dark .tag i{background:var(--teal-lite)}

/* ---------- 产品双栏 ---------- */
.duo{display:grid;gap:36px}
.product{border-top:2px solid var(--ink);padding-top:20px;display:flex;flex-direction:column;gap:16px}
.product .plabel{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted)}
.product .plabel b{font-weight:700;color:var(--ink);font-size:12px;background:#E5E9E3;padding:2px 8px;border-radius:2px}
.product h3{font-size:clamp(22px,4.6vw,28px);line-height:1.3}
.product .desc{color:var(--muted);font-size:15px;line-height:1.85;max-width:48ch}
.flist{display:grid;grid-template-columns:1fr;gap:8px 18px;font-size:13px;color:#2F3C44}
.flist li{display:flex;gap:9px;align-items:flex-start;padding:7px 0;border-bottom:1px solid #E4E7E1}
.flist li svg{width:14px;height:14px;flex:none;margin-top:5px;stroke:var(--teal);fill:none;stroke-width:2}
.pmore{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:var(--teal);align-self:flex-start;padding:10px 0;border-bottom:1px solid var(--teal)}
.pmore:hover{color:#0a6d64;border-bottom-color:#0a6d64}

/* ---------- 界面示意（产品 UI mock） ---------- */
.ui-panel{background:var(--ink-2);border:1px solid rgba(255,255,255,.1);border-radius:4px;padding:14px;color:var(--text-d);margin-top:4px}
.ui-top{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:11px;color:#8AA0A4;padding-bottom:10px;border-bottom:1px solid rgba(255,255,255,.09)}
.ui-top b{color:#DDEAEA;font-weight:500;font-size:12px}
.ui-chips{display:flex;flex-wrap:wrap;gap:6px;padding:10px 0 8px}
.chip{font-size:11px;padding:3px 8px;border:1px solid rgba(255,255,255,.14);border-radius:2px;color:#A9BCBF;white-space:nowrap}
.chip.on{border-color:rgba(62,201,184,.5);color:var(--teal-lite);background:rgba(62,201,184,.08)}
.bars{display:grid;gap:6px;padding:8px 0 4px}
.bar-row{display:grid;grid-template-columns:56px 1fr 34px;align-items:center;gap:8px;font-size:10.5px;color:#81979B}
.bar-row span{color:#8CA0A3}
.bar-row i{height:6px;background:rgba(255,255,255,.08);position:relative;border-radius:1px;overflow:hidden}
.bar-row i::after{content:"";position:absolute;inset:0 40% 0 0;background:var(--teal-lite);opacity:.85}
.bar-row i.w2::after{inset:0 62% 0 0;background:#5A9BD5}
.bar-row i.w3::after{inset:0 78% 0 0;background:#C08A46}
.bar-row b{color:#C8D8DA;font-weight:500;text-align:right;font-variant-numeric:tabular-nums}
.alerts{padding-top:8px;border-top:1px solid rgba(255,255,255,.09);display:grid;gap:6px}
.alert{display:flex;align-items:center;gap:8px;font-size:11px;color:#98ACAF}
.alert s{width:6px;height:6px;background:#D0813A;flex:none;text-decoration:none}
.alert s.ok{background:var(--teal-lite)}
.alert span{margin-left:auto;color:#82979A}
.ui-note{font-size:10.5px;color:#6E8286;padding-top:8px}

/* 客服 mock */
.chat{background:#FBFCFA;border:1px solid var(--line);border-radius:4px;overflow:hidden;margin-top:4px}
.chat-head{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;border-bottom:1px solid var(--line);font-size:11px;color:var(--muted);background:#F1F3EF}
.chat-head b{font-size:12px;color:var(--ink);font-weight:500}
.chat-body{padding:14px;display:grid;gap:10px;background:
  linear-gradient(rgba(11,23,31,.03) 1px,transparent 1px);background-size:100% 26px}
.bubble{max-width:86%;font-size:12px;line-height:1.65;padding:9px 12px;border-radius:3px}
.bubble.user{background:#fff;border:1px solid var(--line);color:#33424A;justify-self:start}
.bubble.bot{background:rgba(14,131,120,.09);border:1px solid rgba(14,131,120,.22);color:#14544E;justify-self:start}
.bubble.agent{background:var(--teal);color:#fff;justify-self:end}
.chat-tag{font-size:10px;color:#81938F;justify-self:start}
.chat-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 14px;border-top:1px solid var(--line);font-size:10.5px;color:var(--muted);background:#F1F3EF}
.chat-foot em{font-style:normal;background:#E7EBE5;padding:2px 8px;border-radius:2px;color:#43535A}

/* ---------- 能力 ---------- */
.cap-grid{display:grid;border-top:1px solid var(--line)}
.cap{padding:22px 0;border-bottom:1px solid var(--line);display:flex;flex-direction:column;gap:10px}
.cap .ci{width:32px;height:32px;display:grid;place-items:center;border:1px solid var(--line);border-radius:2px;flex:none}
.cap .ci svg{width:16px;height:16px;stroke:var(--teal);fill:none;stroke-width:1.8}
.cap h3{font-size:17px;line-height:1.4}
.cap p{font-size:14px;color:var(--muted);line-height:1.85}

/* ---------- 运维大屏 ---------- */
.ops-band{position:relative;background:var(--ink);color:var(--text-d);overflow:hidden}
.ops-band .bgimg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.3}
.ops-band .veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,19,26,.96),rgba(8,19,26,.82) 55%,rgba(8,19,26,.96))}
.ops-band .grid2{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:64px 64px;mask-image:linear-gradient(180deg,transparent,rgba(0,0,0,.7))}
.ops-inner{position:relative;z-index:2;padding:56px 0}
.ops-head{display:grid;gap:20px}
.ops-head h2{font-size:clamp(26px,5.6vw,42px);color:#fff;max-width:18em}
.ops-head p{font-size:15px;color:#B4C4C7;line-height:1.85;max-width:50ch;margin-top:14px}
.ops-points{display:grid;gap:10px;font-size:13px;color:#9FB4B8}
.ops-points li{display:flex;gap:9px;align-items:flex-start}
.ops-points li::before{content:"";width:6px;height:1px;background:var(--teal-lite);margin-top:11px;flex:none}
.dash{margin-top:30px;background:rgba(7,18,25,.82);border:1px solid rgba(255,255,255,.13);border-radius:4px;padding:14px;backdrop-filter:blur(3px)}
.dash-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:11px;color:#8FA4A8;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.1)}
.dash-bar b{font-size:13px;color:#E4EFF0;font-weight:500}
.dash-bar .legend{display:none;gap:14px;align-items:center}
.dash-bar .legend span{display:inline-flex;align-items:center;gap:6px}
.dash-bar .legend i{width:12px;height:2px;background:var(--teal-lite)}
.dash-bar .legend i.blue{background:#5A9BD5}
.dash-kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;padding:14px 0}
.dkpi{border-left:2px solid rgba(255,255,255,.14);padding-left:10px}
.dkpi span{display:block;font-size:10.5px;color:#81969A;line-height:1.7}
.dkpi b{font-size:21px;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.dkpi b i{font-style:normal;font-size:11px;color:var(--teal-lite);margin-left:3px;font-weight:400}
.dash-chart{width:100%;height:132px;display:block}
.dash-lower{display:grid;gap:14px;margin-top:10px;border-top:1px solid rgba(255,255,255,.1);padding-top:14px}
.alarm-list{display:grid;gap:7px;font-size:11px}
.alarm{display:grid;grid-template-columns:52px 1fr auto;gap:8px;align-items:center;color:#9FB3B6}
.alarm time{color:#75898D;font-variant-numeric:tabular-nums}
.alarm em{font-style:normal;font-size:10px;padding:2px 6px;border-radius:2px;border:1px solid rgba(255,255,255,.16);color:#C3D4D6}
.alarm em.warn{border-color:rgba(208,129,58,.5);color:#E2A463;background:rgba(208,129,58,.1)}
.alarm em.ok{border-color:rgba(62,201,184,.4);color:var(--teal-lite);background:rgba(62,201,184,.08)}
.dash-note{font-size:10.5px;color:#6F8387;margin-top:10px}

/* ---------- 服务过程 ---------- */
.split{display:grid;gap:28px}
.cs-copy h2{font-size:clamp(26px,5.4vw,40px)}
.cs-copy p{margin-top:14px;font-size:15px;color:var(--muted);line-height:1.85;max-width:48ch}
.cs-list{display:grid;gap:0;margin-top:22px;border-top:1px solid var(--line)}
.cs-list li{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:baseline;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}
.cs-list li b{font-weight:500;color:var(--ink)}
.cs-list li span{font-size:12px;color:var(--muted)}

/* ---------- 关于 ---------- */
.about-band{display:grid;gap:0;border-top:1px solid var(--line)}
.about-fig{position:relative;margin:0}
.about-fig img{width:100%;height:100%;object-fit:cover;aspect-ratio:3/2}
.about-fig figcaption{position:absolute;left:0;bottom:0;background:rgba(11,23,31,.86);color:#CBD9DA;font-size:11px;padding:6px 10px}
.about-copy{padding:28px 0}
.about-copy h2{font-size:clamp(25px,5vw,38px)}
.about-copy p{margin-top:14px;font-size:15px;color:var(--muted);line-height:1.9;max-width:52ch}
.about-meta{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:22px;padding-top:18px;border-top:1px solid var(--line)}
.about-meta div span{display:block;font-size:11px;color:var(--muted)}
.about-meta div b{font-size:14px;font-weight:500}

/* ---------- CTA ---------- */
.cta{background:var(--ink-3);color:#fff;position:relative;overflow:hidden}
.cta .grid3{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:56px 56px}
.cta-inner{position:relative;z-index:2;padding:48px 0;display:grid;gap:22px}
.cta h2{font-size:clamp(24px,5vw,36px);max-width:20em}
.cta p{font-size:14px;color:#B9CBCE;max-width:46ch;margin-top:12px}
.cta-actions{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- 页脚 ---------- */
.site-foot{background:#08131A;color:#94A9AD;padding:44px 0 0}
.foot-grid{display:grid;gap:28px;padding-bottom:32px}
.foot-brand .brand-mark{background:#12252E;margin-bottom:12px}
.foot-brand strong{display:block;color:#fff;font-size:16px;letter-spacing:.01em}
.foot-brand p{font-size:12.5px;line-height:1.9;max-width:34ch;margin-top:10px;color:#82979B}
.foot-col h4{color:#DDEAEB;font-size:13px;font-weight:500;margin-bottom:12px}
.foot-col a,.foot-col span{display:block;font-size:12.5px;line-height:2.1;color:#8FA4A8}
.foot-col a:hover{color:var(--teal-lite)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.09);padding:16px 0 24px;display:flex;flex-wrap:wrap;gap:6px 18px;font-size:11.5px;color:#6F8387}
.foot-bottom a{color:#8FA4A8}
.foot-bottom a:hover{color:var(--teal-lite)}

/* ---------- 内页通用 ---------- */
.page-hero{position:relative;background:var(--ink);color:var(--text-d);padding:48px 0 40px;overflow:hidden}
.page-hero .grid4{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:64px 64px;mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent)}
.page-hero .ph{position:relative;z-index:2;max-width:860px}
.crumb{font-size:11.5px;color:#82979B;display:flex;gap:8px;align-items:center;margin-bottom:18px}
.crumb a{color:#A3B8BB}
.crumb a:hover{color:var(--teal-lite)}
.page-hero h1{font-size:clamp(28px,6.4vw,48px);color:#fff;line-height:1.22}
.page-hero p{margin-top:14px;font-size:15px;line-height:1.85;color:#BACBCD;max-width:52ch}
.ph-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.ph-tags span{font-size:11.5px;border:1px solid rgba(255,255,255,.2);padding:4px 10px;border-radius:2px;color:#B9CCCE}
.feature-grid{display:grid;border-top:1px solid var(--line)}
.feat{padding:22px 0;border-bottom:1px solid var(--line);display:flex;flex-direction:column;gap:9px}
.feat .fi{width:30px;height:30px;border:1px solid var(--line);display:grid;place-items:center;border-radius:2px}
.feat .fi svg{width:16px;height:16px;stroke:var(--teal);fill:none;stroke-width:1.8}
.feat h3{font-size:16px;line-height:1.45}
.feat p{font-size:13.5px;color:var(--muted);line-height:1.85}
.flow{display:grid;gap:20px}
.step{padding-top:14px;border-top:1px solid var(--line)}
.step b{font-size:11px;color:var(--teal);letter-spacing:.04em;display:block;margin-bottom:6px}
.step h3{font-size:15.5px}
.step p{font-size:13px;color:var(--muted);line-height:1.8;margin-top:6px}
.deploy-table{width:100%;border-collapse:collapse;table-layout:fixed;font-size:13px;margin-top:6px}
.deploy-table th,.deploy-table td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top;line-height:1.7}
.deploy-table th{background:#EBEEE9;font-weight:500;font-size:12.5px;color:#2C3A42}
.deploy-table td{color:#45555D;background:#fff}
.quote{border-left:3px solid var(--teal);padding:4px 0 4px 16px;font-size:14px;color:#33424A;line-height:1.9;background:#F0F2EE;margin-top:4px}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;gap:26px}
.form-card{background:#fff;border:1px solid var(--line);border-radius:4px;padding:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:12.5px;color:#3C4A52;margin-bottom:6px}
.field input,.field textarea,.field select{width:100%;font:inherit;font-size:16px;padding:10px 12px;border:1px solid #CFD5CE;border-radius:2px;background:#FCFDFB;color:var(--ink)}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.field-note{font-size:11.5px;color:var(--muted);margin-top:6px}
.form-row{display:grid;gap:0}
.form-foot{font-size:11.5px;color:var(--muted);line-height:1.8;margin-top:14px}
.contact-info{border-top:2px solid var(--ink);padding-top:18px}
.contact-info h3{font-size:18px}
.contact-info dl{margin:14px 0 0;display:grid;gap:14px}
.contact-info dt{font-size:11.5px;color:var(--muted);margin-bottom:3px}
.contact-info dd{margin:0;font-size:14px;line-height:1.75}
.contact-info dd em{font-style:normal;color:#95A29E}

/* ---------- 后台原型 ---------- */
.admin-wrap{padding:28px 0 56px}
.admin-notice{display:flex;gap:10px;align-items:flex-start;background:#FFF8E8;border:1px solid #E8D9B4;border-left:3px solid #C08A46;padding:12px 14px;font-size:12.5px;color:#6B5734;line-height:1.75;margin-bottom:18px;border-radius:2px}
.admin-shell{border:1px solid var(--line);background:#fff;border-radius:4px;overflow:hidden}
.admin-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;border-bottom:1px solid var(--line);background:#F1F3EF;flex-wrap:wrap}
.admin-top strong{font-size:13px;font-weight:500}
.admin-top span{font-size:11px;color:var(--muted)}
.admin-side{display:flex;gap:4px;overflow-x:auto;padding:10px 12px;border-bottom:1px solid var(--line);background:#FAFBF8}
.admin-side a{font-size:12px;white-space:nowrap;padding:6px 10px;border-radius:2px;color:#4A5A62}
.admin-side a.on{background:var(--ink);color:#fff}
.admin-main{padding:16px}
.admin-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px;flex-wrap:wrap}
.admin-toolbar h3{font-size:15px}
.admin-toolbar span{font-size:11.5px;color:var(--muted)}
.adm-table{width:100%;border-collapse:collapse;table-layout:fixed;font-size:12px}
.adm-table th,.adm-table td{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left;vertical-align:middle;line-height:1.6}
.adm-table th{background:#F7F8F5;font-weight:500;font-size:11.5px;color:#5A6A70}
.adm-table td{color:#33424A;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.st{display:inline-block;font-size:10.5px;padding:2px 7px;border-radius:2px;border:1px solid #D5DAD2;color:#5A6A70;background:#F7F8F5}
.st.pub{color:#12655C;border-color:#A8D6CE;background:#EDF7F4}
.st.draft{color:#8A6A2C;border-color:#E3D3AE;background:#FBF6EA}
.admin-editor{margin-top:16px;border:1px solid var(--line);border-radius:4px;padding:14px;background:#FCFDFB}
.admin-editor h4{font-size:12.5px;font-weight:500;margin-bottom:10px;color:#3C4A52}
.ed-grid{display:grid;gap:10px}
.ed-line{display:grid;grid-template-columns:64px 1fr;gap:8px;align-items:center;font-size:11.5px}
.ed-line b{color:#6C7A80;font-weight:400}
.ed-line span{background:#fff;border:1px solid #DEE2DB;border-radius:2px;padding:6px 9px;color:#33424A;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ed-line span.ph{color:#A9B3AC}
.admin-cols{display:grid;gap:16px}

/* ---------- 响应式 ---------- */
@media (min-width:600px){
  .flist{grid-template-columns:1fr 1fr}
  .hero-stats{grid-template-columns:repeat(4,1fr)}
  .form-row{grid-template-columns:1fr 1fr;gap:0 16px}
}
@media (min-width:900px){
  .wrap{padding:0 32px}
  .nav-desk{display:flex}
  .nav-toggle{display:none}
  .nav-mobile{display:none!important}
  .head-inner{min-height:72px}
  .hero-body{padding:72px 0 0;min-height:calc(100vh - 72px);justify-content:space-between;gap:40px}
  .hero-top{grid-template-columns:minmax(0,1.35fr) minmax(320px,.65fr);align-items:center;gap:48px}
  .hero-cta .btn{flex:0 0 auto}
  .hero-side{justify-content:center}
  .live-card{padding:18px 20px}
  .section{padding:80px 0}
  .section.tight{padding:56px 0}
  .section-head{margin-bottom:44px}
  .duo{grid-template-columns:1fr 1fr;gap:56px}
  .cap-grid{grid-template-columns:repeat(4,1fr);gap:0 32px;border-bottom:1px solid var(--line)}
  .cap{border-bottom:0;padding:26px 0}
  .ops-inner{padding:80px 0}
  .ops-head{grid-template-columns:1fr .85fr;gap:48px;align-items:end}
  .dash{padding:20px}
  .dash-bar .legend{display:flex}
  .dash-lower{grid-template-columns:1.1fr .9fr}
  .dash-chart{height:180px}
  .alarm-list{gap:8px}
  .split{grid-template-columns:1fr 1fr;gap:56px;align-items:start}
  .about-band{grid-template-columns:1fr 1fr;align-items:stretch}
  .about-copy{padding:0 0 0 48px;align-self:center}
  .about-fig img{height:100%;aspect-ratio:4/3}
  .cta-inner{grid-template-columns:1fr auto;align-items:center;padding:64px 0;gap:40px}
  .cta-actions{justify-content:flex-end}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:40px}
  .feature-grid{grid-template-columns:repeat(3,1fr);gap:0 40px;border-bottom:1px solid var(--line)}
  .feat{border-bottom:0;padding:26px 0}
  .flow{grid-template-columns:repeat(4,1fr);gap:28px}
  .contact-grid{grid-template-columns:1fr .8fr;gap:56px}
  .form-card{padding:28px}
  .admin-wrap{padding:40px 0 80px}
  .admin-main{padding:20px}
  .admin-cols{grid-template-columns:.9fr 1.1fr;gap:20px;align-items:start}
  .page-hero{padding:64px 0 56px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}
/* ---------- Django 站点补充 ---------- */
.flash-wrap{position:fixed;left:50%;transform:translateX(-50%);top:74px;z-index:70;display:grid;gap:8px;width:calc(100% - 40px);max-width:520px;transition:opacity .35s}
.flash{background:var(--ink);color:#fff;border-left:3px solid var(--teal-lite);padding:12px 16px;font-size:13.5px;line-height:1.7;border-radius:2px;box-shadow:0 10px 28px rgba(11,23,31,.2)}
.flash-error{border-left-color:#C0563A}
.flash-wrap.is-hidden{opacity:0;pointer-events:none}
.field-note.err{color:#B4472F}
.article-list{display:grid;border-top:1px solid var(--line)}
.article-item{display:grid;grid-template-columns:1fr auto;gap:18px;align-items:start;padding:22px 0;border-bottom:1px solid var(--line)}
.article-item h3{font-size:19px;transition:color .2s}
.article-item:hover h3{color:var(--teal)}
.article-item p{margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.8;max-width:56ch}
.article-item time{font-size:12px;color:var(--muted);white-space:nowrap;padding-top:4px}
.article-cat{display:inline-block;font-size:11px;color:var(--teal);border:1px solid rgba(14,131,120,.25);background:rgba(14,131,120,.06);padding:2px 8px;border-radius:2px;margin-bottom:8px}
.article-body{max-width:760px}
.article-body h2{font-size:22px;margin:32px 0 12px}
.article-body h3{font-size:18px;margin:26px 0 10px}
.article-body p{font-size:15px;line-height:1.95;color:#2C3A42;margin:12px 0}
.article-body ul,.article-body ol{margin:12px 0;padding-left:22px;font-size:15px;line-height:1.95}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:4px 0}
.article-body img{border:1px solid var(--line);margin:16px 0}
.article-body blockquote{border-left:3px solid var(--teal);background:#F0F2EE;padding:10px 16px;color:#3A4A52;margin:16px 0}
@media (min-width:900px){.flash-wrap{top:86px}}
@media (max-width:599px){.article-item{grid-template-columns:1fr}.article-item time{padding-top:0}}

/* ---------- 首页首屏高度校准（站点微调，不改原型视觉语言） ---------- */
@media (min-width:900px){
  .hero-body{min-height:calc(100vh - 172px);justify-content:center;padding:48px 0}
  .hero-stats{padding-top:0}
}
/* ---------- 智能能力 ---------- */
.ai-scope{display:inline-block;align-self:flex-start;font-size:10.5px;letter-spacing:.04em;color:var(--teal);border:1px solid rgba(14,131,120,.28);background:rgba(14,131,120,.06);padding:1px 8px;border-radius:2px}
.ai-note{margin-top:24px;font-size:12px;line-height:1.9;color:var(--muted);border-left:2px solid var(--line);padding-left:12px;max-width:72ch}