/* 万花筒官网 · 预览稿样式（纯静态，无外链依赖） */
:root{
  --blue:#1657F0;
  --blue-d:#0A2A6B;
  --blue-dd:#061C4A;
  --blue-l:#4C86FF;
  --blue-pale:#EDF3FF;
  --orange:#FF7A18;
  --orange-d:#F06500;
  --ink:#0F1B33;
  --body:#41506B;
  --muted:#8494AC;
  --line:#E3EAF6;
  --bg:#F6F9FE;
  --white:#fff;
  --radius:10px;
  --shadow:0 10px 30px rgba(16,44,100,.08);
  --shadow-lg:0 24px 60px rgba(10,42,107,.16);
  --max:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--ink);background:var(--white);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.mono{font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.topbar{height:34px;background:#0A1E45;color:#A8BEDF;font-size:12.5px}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:34px}
.topbar .tb-right{display:flex;gap:22px;align-items:center}
.topbar a:hover{color:#fff}
header.site{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 2px 14px rgba(16,44,100,.05)}
.nav{display:flex;align-items:center;height:70px;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;letter-spacing:.2px;white-space:nowrap}
.brand .mark{width:34px;height:34px;flex:0 0 34px;border-radius:50%;object-fit:contain}
.f-brand img{border-radius:50%;flex:0 0 28px}
.brand small{display:block;font-size:10px;letter-spacing:.18em;color:var(--muted);font-weight:500;line-height:1}
.nav ul{display:flex;gap:26px;list-style:none;margin:0;padding:0;font-size:15px;color:#22304A;margin-left:14px}
.nav ul a{position:relative;padding:24px 0;display:inline-block}
.nav ul a:hover,.nav ul a.on{color:var(--blue)}
.nav ul a.on::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:16px;width:18px;height:3px;border-radius:2px;background:var(--blue)}
.nav .right{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav .tel{font-size:15px;font-weight:700;color:var(--blue-d);letter-spacing:.3px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:40px;padding:0 22px;border-radius:6px;font-size:14.5px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:.18s}
.btn.primary{background:var(--orange);color:#fff;box-shadow:0 8px 18px rgba(255,122,24,.28)}
.btn.primary:hover{background:var(--orange-d);transform:translateY(-1px)}
.btn.ghost{border-color:rgba(255,255,255,.55);color:#fff}
.btn.ghost:hover{background:rgba(255,255,255,.12)}
.btn.line{border-color:#C9D8F2;color:var(--blue-d);background:#fff}
.btn.line:hover{border-color:var(--blue);color:var(--blue)}
.btn.sm{height:34px;padding:0 16px;font-size:13px}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(900px 420px at 18% 8%, rgba(76,134,255,.55), transparent 62%),
    radial-gradient(720px 380px at 88% 22%, rgba(0,163,255,.34), transparent 60%),
    linear-gradient(120deg,#04194A 0%,#0A2A6B 42%,#1246B8 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(1100px 520px at 50% 20%,#000 30%,transparent 78%);
}
.hero .wrap{position:relative;z-index:2;padding:64px 24px 0}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;min-height:470px}
.hero .tagline{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 12px;border-radius:30px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);font-size:13px;color:#DCE8FF}
.hero h1{font-size:52px;line-height:1.22;margin:20px 0 18px;letter-spacing:-.5px;font-weight:700}
.hero h1 em{font-style:normal;color:#FFC48A}
.hero p.lead{font-size:17px;line-height:1.85;color:#CBDCF7;margin:0 0 30px;max-width:620px}
.hero .cta{display:flex;gap:14px;align-items:center}
.hero .cta .btn{height:46px;padding:0 28px;font-size:15px;border-radius:7px}
.hero .cta .link{color:#D6E4FF;font-size:14px;margin-left:6px;border-bottom:1px solid rgba(214,228,255,.45);padding-bottom:2px}

/* hero 右侧：投放看板 */
.board{
  position:relative;background:linear-gradient(180deg,rgba(255,255,255,.97),rgba(246,250,255,.95));
  border-radius:14px;padding:18px;color:var(--ink);box-shadow:0 30px 70px rgba(2,16,48,.42);
  border:1px solid rgba(255,255,255,.6);transform:translateY(10px);
}
.board .bhead{display:flex;align-items:center;justify-content:space-between;padding-bottom:12px;border-bottom:1px solid var(--line)}
.board .bhead b{font-size:14.5px}
.board .bhead span{font-size:11.5px;color:var(--muted)}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:14px 0}
.kpi{background:#fff;border:1px solid var(--line);border-radius:9px;padding:11px 12px}
.kpi i{display:block;font-style:normal;font-size:11.5px;color:var(--muted);margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.kpi b{font-size:21px;letter-spacing:-.3px}
.kpi b u{text-decoration:none;font-size:12px;font-weight:500;color:var(--muted);margin-left:3px}
.kpi .up{font-size:11px;color:#1AA06D;margin-left:4px}
.chart{display:flex;align-items:flex-end;gap:7px;height:104px;padding:10px 2px 0;border-bottom:1px solid var(--line)}
.chart i{flex:1;background:linear-gradient(180deg,#4C86FF,#9CBCFF);border-radius:4px 4px 0 0;position:relative}
.chart i.hot{background:linear-gradient(180deg,#FF9A4D,#FF7A18)}
.chart i.hot::after{content:"爆";position:absolute;top:-19px;left:50%;transform:translateX(-50%);font-size:10px;color:#fff;background:var(--orange);border-radius:3px;padding:0 4px;line-height:15px}
.chart-x{display:flex;gap:7px;color:var(--muted);font-size:10px;padding-top:6px}
.chart-x span{flex:1;text-align:center}
.board .rows{margin-top:10px;font-size:12px;color:var(--body)}
.board .rows div{display:flex;justify-content:space-between;padding:7px 0;border-bottom:1px dashed #E8EEF9}
.board .rows div:last-child{border:0}
.board .rows b{font-weight:600;color:var(--ink)}

/* hero 底部数据条 */
.stats{position:relative;z-index:2;margin-top:34px;border-top:1px solid rgba(255,255,255,.16);background:rgba(4,20,58,.28);backdrop-filter:blur(3px)}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:0;padding:22px 24px}
.stat{text-align:center;border-right:1px solid rgba(255,255,255,.12)}
.stat:last-child{border:0}
.stat b{display:block;font-size:30px;letter-spacing:-.5px;line-height:1.2}
.stat b u{text-decoration:none;font-size:18px;font-weight:500;color:#C8D9F6;margin-left:3px;vertical-align:2px}
.stat span{font-size:12.5px;color:#9FB8DC}

/* ---------- 通用 section ---------- */
section{padding:86px 0}
section.tight{padding:64px 0}
section.gray{background:var(--bg)}
.sec-head{text-align:center;max-width:760px;margin:0 auto 44px}
.eyebrow{display:inline-block;font-size:12.5px;letter-spacing:.16em;color:var(--blue);font-weight:700;background:var(--blue-pale);border-radius:30px;padding:5px 14px;margin-bottom:14px}
h2.sec{font-size:34px;line-height:1.35;margin:0 0 12px;letter-spacing:-.4px;font-weight:700}
.sec-head p{color:var(--body);font-size:15.5px;margin:0}
.sec-head.on-dark h2.sec{color:#fff}
.sec-head.on-dark p{color:#B9CBE9}
.sec-head.on-dark .eyebrow{background:rgba(255,255,255,.12);color:#D6E4FF}

/* ---------- 场景卡片网格 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.scene{
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px 22px 20px;
  transition:.2s;position:relative;overflow:hidden;min-height:196px;display:flex;flex-direction:column
}
.scene:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px);border-color:#CBDBFA}
.scene .ico{width:44px;height:44px;border-radius:11px;background:var(--blue-pale);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.scene .ico svg{width:23px;height:23px;stroke:var(--blue);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.scene h3{font-size:17px;margin:0 0 8px;font-weight:700}
.scene p{color:var(--body);font-size:13px;line-height:1.8;margin:0 0 14px}
.scene .go{margin-top:auto;color:var(--blue);font-size:13px;font-weight:600}
.scene .go::after{content:" ›";font-weight:700}
.scene.feature{background:linear-gradient(150deg,#0C3A9E,#1657F0 62%,#3D7CFF);color:#fff;border:0}
.scene.feature .ico{background:rgba(255,255,255,.16)}
.scene.feature .ico svg{stroke:#fff}
.scene.feature p{color:#D3E2FF}
.scene.feature .go{color:#FFD1A3}
.scene.feature::before{content:"";position:absolute;right:-40px;top:-40px;width:150px;height:150px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.28),transparent 66%)}

/* ---------- 产品矩阵 ---------- */
.products{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.prod{border:1px solid var(--line);border-radius:12px;padding:26px;background:#fff;position:relative;transition:.2s}
.prod:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.prod .pcode{font-size:11.5px;letter-spacing:.14em;color:var(--muted);font-weight:700}
.prod h3{font-size:20px;margin:8px 0 4px}
.prod .sub{font-size:12.5px;color:var(--blue);font-weight:600;margin-bottom:12px}
.prod p{color:var(--body);font-size:13.5px;margin:0 0 16px;min-height:66px}
.prod ul{list-style:none;padding:0;margin:0 0 18px;font-size:13px;color:var(--body)}
.prod ul li{padding-left:18px;position:relative;line-height:1.95}
.prod ul li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--blue-l)}
.prod .pfoot{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:14px}
.prod .pfoot span{font-size:12.5px;color:var(--muted)}
.prod .pfoot a{font-size:13px;font-weight:600;color:var(--blue)}

/* ---------- 深蓝 tabs 段 ---------- */
.why{background:linear-gradient(120deg,#061C4A,#0A2A6B 55%,#0E3B96);color:#fff;position:relative;overflow:hidden}
.why::before{content:"";position:absolute;width:720px;height:720px;right:-220px;top:-260px;border-radius:50%;background:radial-gradient(circle,rgba(76,134,255,.35),transparent 62%)}
.why .wrap{position:relative;z-index:2}
.tabs{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:40px}
.tabs button{
  appearance:none;border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);color:#C9DAF5;
  height:42px;padding:0 22px;border-radius:6px;font-size:14px;cursor:pointer;font-family:inherit;transition:.18s
}
.tabs button.on{background:#fff;color:var(--blue-d);border-color:#fff;font-weight:700}
.tab-panels{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;min-height:330px}
.tab-panels .txt h3{font-size:27px;margin:0 0 10px;letter-spacing:-.3px}
.tab-panels .txt .desc{color:#B9CBE9;margin:0 0 22px;font-size:14.5px}
.bullets{list-style:none;padding:0;margin:0}
.bullets li{display:flex;gap:11px;padding:9px 0;font-size:14.5px;color:#E6EFFC;border-bottom:1px dashed rgba(255,255,255,.13)}
.bullets li:last-child{border:0}
.bullets svg{width:18px;height:18px;flex:0 0 18px;margin-top:3px;stroke:#FFB26B;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.panel-visual{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);border-radius:14px;padding:20px;
  backdrop-filter:blur(4px)
}
.pv-head{display:flex;align-items:center;gap:8px;margin-bottom:14px}
.pv-head i{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.35);font-style:normal}
.pv-head b{font-size:13px;font-weight:600;color:#DCE8FC;margin-left:6px}
.pv-rows{display:grid;gap:9px}
.pv-row{display:flex;align-items:center;gap:12px;background:rgba(8,26,64,.5);border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:11px 13px;font-size:13px}
.pv-row .name{flex:1;color:#DCE8FC}
.pv-row .num{color:#fff;font-weight:700}
.pv-row .pill{font-size:11px;padding:2px 8px;border-radius:20px;background:rgba(255,178,107,.18);color:#FFC58C;border:1px solid rgba(255,178,107,.35)}
.pv-row .pill.ok{background:rgba(52,199,137,.16);color:#7DE0B0;border-color:rgba(52,199,137,.32)}
.pv-foot{margin-top:14px;font-size:11.5px;color:#8FA9CE}

/* ---------- 客户见证 ---------- */
.case-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.quote{background:#fff;border:1px solid var(--line);border-radius:12px;padding:26px;display:flex;flex-direction:column}
.quote .brandline{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.quote .logo-dot{width:34px;height:34px;border-radius:8px;background:var(--blue-pale);display:flex;align-items:center;justify-content:center;font-weight:800;color:var(--blue);font-size:15px}
.quote .bname{font-weight:700;font-size:15.5px}
.quote .bdesc{font-size:11.5px;color:var(--muted);display:block;line-height:1.4}
.quote blockquote{margin:0 0 18px;color:var(--body);font-size:13.5px;line-height:1.9;position:relative;padding-left:18px}
.quote blockquote::before{content:"“";position:absolute;left:0;top:-6px;font-size:30px;color:#C9D8F2;font-family:Georgia,serif}
.quote .who{margin-top:auto;font-size:12.5px;color:var(--muted);border-top:1px dashed var(--line);padding-top:12px}
.quote .who b{color:var(--ink)}

/* ---------- 客户墙 ---------- */
.logo-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.logo-wall div{background:#fff;height:92px;display:flex;align-items:center;justify-content:center;color:#5F7291;font-weight:700;font-size:15.5px;letter-spacing:.02em;transition:.2s;opacity:.92}
.logo-wall div:hover{color:var(--blue-d);filter:none;opacity:1;background:#FBFCFF}
.note-line{text-align:center;font-size:11.5px;color:var(--muted);margin-top:16px}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
.price-card{border:1px solid var(--line);border-radius:14px;background:#fff;padding:30px 28px;display:flex;flex-direction:column;position:relative;transition:.2s}
.price-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.price-card.hot{border-color:var(--blue);box-shadow:0 18px 50px rgba(22,87,240,.16);background:linear-gradient(180deg,#F8FBFF,#fff)}
.price-card .badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--orange);color:#fff;font-size:11.5px;font-weight:700;border-radius:20px;padding:4px 14px;white-space:nowrap}
.price-card h3{font-size:18px;margin:0 0 4px}
.price-card .for{font-size:12.5px;color:var(--muted);margin-bottom:20px}
.price-card .amount{font-size:38px;font-weight:700;letter-spacing:-1px;line-height:1;display:flex;align-items:baseline;gap:2px}
.price-card .amount small{font-size:14px;font-weight:500;color:var(--muted);letter-spacing:0;margin-left:4px}
.price-card .amount em{font-style:normal;font-size:15px;font-weight:600;color:var(--muted);margin-right:2px}
.price-card hr{border:0;border-top:1px dashed var(--line);margin:20px 0}
.price-card ul{list-style:none;padding:0;margin:0 0 24px;font-size:13.5px;color:var(--body);flex:1}
.price-card ul li{padding:7px 0 7px 22px;position:relative}
.price-card ul li::before{content:"";position:absolute;left:2px;top:14px;width:11px;height:6px;border-left:2px solid var(--blue);border-bottom:2px solid var(--blue);transform:rotate(-45deg)}
.price-card .btn{width:100%}
.price-foot{text-align:center;color:var(--muted);font-size:12.5px;margin-top:26px}

/* 表格 */
table.cmp{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:13.5px}
table.cmp th,table.cmp td{padding:13px 16px;border-bottom:1px solid var(--line);text-align:left}
table.cmp th{background:#F1F6FF;font-size:13px;color:var(--blue-d);font-weight:700}
table.cmp tr:last-child td{border-bottom:0}
table.cmp td.c,table.cmp th.c{text-align:center}
table.cmp td .yes{color:var(--blue);font-weight:700}
table.cmp td .no{color:#C3CCDA}

/* ---------- 平台对接 ---------- */
.integ-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.integ{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:11px;padding:18px}
.integ .ic{width:42px;height:42px;flex:0 0 42px;border-radius:10px;background:#F0F5FF;display:flex;align-items:center;justify-content:center;font-weight:800;color:var(--blue);font-size:13px}
.integ b{display:block;font-size:14.5px;margin-bottom:3px}
.integ span{font-size:12.5px;color:var(--muted);line-height:1.7}
.diagram{background:#0A1E45;border-radius:14px;padding:26px;color:#fff;overflow:hidden;position:relative}
.diagram .dg-title{font-size:13px;color:#9FB8DC;margin-bottom:16px;letter-spacing:.04em}
.dg-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:14px}
.dg-box{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:9px;padding:12px;text-align:center;font-size:12.5px;color:#D6E4FF}
.dg-box.core{background:linear-gradient(135deg,#1657F0,#4C86FF);border-color:transparent;color:#fff;font-weight:700;grid-column:span 2;box-shadow:0 12px 30px rgba(22,87,240,.35)}
.dg-arrow{text-align:center;color:#4C86FF;font-size:16px;margin:2px 0 12px}

/* ---------- 案例页 ---------- */
.case-big{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;padding:34px 0;border-bottom:1px solid var(--line)}
.case-big:last-child{border:0}
.case-big .kicker{font-size:12.5px;color:var(--blue);font-weight:700;letter-spacing:.1em;margin-bottom:10px}
.case-big h3{font-size:26px;margin:0 0 12px;letter-spacing:-.3px}
.case-big p{color:var(--body);font-size:14px;margin:0 0 18px}
.case-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:18px}
.case-metrics div{background:#F4F8FF;border:1px solid #E1EBFB;border-radius:9px;padding:12px}
.case-metrics b{display:block;font-size:24px;letter-spacing:-.5px;color:var(--blue-d)}
.case-metrics span{font-size:11.5px;color:var(--muted)}
.case-visual{background:linear-gradient(160deg,#EAF1FF,#F8FBFF);border:1px solid #DCE7FA;border-radius:14px;padding:18px;height:100%;min-height:300px;display:flex;flex-direction:column;gap:10px}
.cv-head{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted)}
.cv-head b{color:var(--ink);font-size:13px}
.cv-bars{display:flex;align-items:flex-end;gap:10px;height:150px;padding-top:8px;border-bottom:1px solid #DCE7FA}
.cv-bars i{flex:1;border-radius:4px 4px 0 0;background:linear-gradient(180deg,#4C86FF,#A9C3FF)}
.cv-bars i.o{background:linear-gradient(180deg,#FF9A4D,#FFC48A)}
.cv-legend{display:flex;gap:16px;font-size:11.5px;color:var(--muted);margin-top:4px}
.cv-legend span::before{content:"";display:inline-block;width:8px;height:8px;border-radius:2px;background:var(--blue-l);margin-right:6px}
.cv-legend span.o::before{background:var(--orange)}

/* ---------- 表单 / CTA 带 ---------- */
.cta-band{background:linear-gradient(100deg,#0A2A6B,#1657F0 70%,#3D7CFF);border-radius:16px;padding:44px 48px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;width:420px;height:420px;right:-120px;top:-160px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.22),transparent 62%)}
.cta-band h2{font-size:30px;margin:0 0 8px;letter-spacing:-.4px}
.cta-band p{margin:0;color:#CBDCF7;font-size:14.5px}
.cta-band .acts{display:flex;gap:12px;flex:0 0 auto;position:relative;z-index:2}

/* ---------- 合作/认证 ---------- */
.cert-row{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.cert{border:1px solid var(--line);border-radius:11px;padding:20px 16px;text-align:center;background:#fff}
.cert b{display:block;font-size:14px;margin-bottom:4px;color:var(--blue-d)}
.cert span{font-size:11.5px;color:var(--muted);line-height:1.6}

/* ---------- 页脚 ---------- */
footer.site{background:#081731;color:#9FB2CF;padding:54px 0 26px;font-size:13px}
.f-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1.1fr;gap:34px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.1)}
.f-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:14px}
footer.site h4{color:#fff;font-size:14px;margin:0 0 14px;font-weight:600}
footer.site ul{list-style:none;padding:0;margin:0}
footer.site ul li{padding:5px 0}
footer.site a:hover{color:#fff}
.f-contact b{color:#fff;font-size:20px;letter-spacing:.3px}
.f-qr{width:86px;height:86px;background:#fff;border-radius:6px;display:flex;align-items:center;justify-content:center;color:#0A2A6B;font-size:10px;text-align:center;line-height:1.4}
.f-bot{padding-top:22px;display:flex;justify-content:space-between;gap:20px;color:#6D84A8;font-size:12px;flex-wrap:wrap}

/* ---------- 内页 banner ---------- */
.page-hero{background:linear-gradient(120deg,#04194A,#0A2A6B 55%,#1246B8);color:#fff;padding:58px 0 54px;position:relative;overflow:hidden}
.page-hero::before{content:"";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:52px 52px;mask-image:linear-gradient(180deg,#000,transparent 90%)}
.page-hero .wrap{position:relative;z-index:2}
.page-hero h1{font-size:40px;margin:0 0 12px;letter-spacing:-.5px}
.page-hero p{margin:0;color:#BED2F2;font-size:15.5px;max-width:720px}
.crumb{font-size:12.5px;color:#8FA9CE;margin-bottom:16px}
.crumb a:hover{color:#fff}

@media (max-width:1080px){
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .products{grid-template-columns:repeat(2,1fr)}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero h1{font-size:40px}
  .price-grid,.case-strip,.integ-grid{grid-template-columns:1fr}
  .tab-panels{grid-template-columns:1fr}
  .logo-wall{grid-template-columns:repeat(3,1fr)}
  .f-grid{grid-template-columns:1fr 1fr}
  .nav ul{display:none}
  .cert-row{grid-template-columns:1fr 1fr}
  .case-big{grid-template-columns:1fr}
  .stats .wrap{grid-template-columns:1fr 1fr;gap:16px}
  .stat{border-right:0}
}

/* ---------- 手机端（≤860px） ---------- */
.mbtn{display:none;background:#fff;border:1px solid var(--line);border-radius:7px;width:38px;height:38px;font-size:20px;line-height:1;color:#22304A;cursor:pointer}
body{overflow-x:hidden}
@media (max-width:860px){
  .wrap{padding:0 16px}
  .topbar{display:none}
  .nav{height:60px;gap:10px;position:relative}
  .brand{font-size:17px;gap:8px}
  .brand .mark{width:30px;height:30px;flex:0 0 30px}
  .brand small{font-size:9px}
  .mbtn{display:block;margin-left:auto}
  .nav .right{margin-left:0;gap:8px}
  .nav .tel{display:none}
  .nav .right .btn{height:34px;padding:0 13px;font-size:13px;border-radius:6px}
  .nav ul{
    display:none;position:absolute;left:-16px;right:-16px;top:60px;background:#fff;
    flex-direction:column;gap:0;padding:6px 16px 12px;border-bottom:1px solid var(--line);
    box-shadow:0 18px 30px rgba(16,44,100,.10);z-index:90;margin:0
  }
  .nav ul.open{display:flex}
  .nav ul a{padding:11px 0;font-size:15px;border-bottom:1px solid #F1F5FC;width:100%}
  .nav ul a.on::after{display:none}
  .nav ul li:last-child a{border-bottom:0}

  section{padding:52px 0}
  section.tight{padding:40px 0}
  .hero .wrap{padding:34px 16px 0}
  .hero-grid{min-height:0;gap:26px}
  .hero h1{font-size:31px;line-height:1.3;margin:14px 0 12px}
  .hero p.lead{font-size:14.5px;max-width:none;margin-bottom:22px}
  .hero .tagline{font-size:11.5px;height:26px;padding:0 10px}
  .hero .cta{gap:10px;flex-wrap:wrap}
  .hero .cta .btn{height:42px;padding:0 18px;font-size:14px}
  .hero .cta .link{font-size:13px;margin-left:0}
  .board{padding:14px;border-radius:12px;transform:none}
  .kpi b{font-size:17px}
  .kpi{padding:9px 9px}
  .kpi i{font-size:10.5px}
  .chart{height:84px}
  .kpis{gap:7px}
  .stats .wrap{padding:16px 0;gap:14px}
  .stat b{font-size:23px}
  .stat b u{font-size:14px}
  .stat span{font-size:11.5px}

  h2.sec{font-size:24px;line-height:1.4}
  .sec-head{margin-bottom:30px}
  .sec-head p{font-size:13.5px}
  .eyebrow{font-size:11.5px}

  .scene-grid{grid-template-columns:1fr;gap:12px}
  .scene{min-height:0;padding:20px 18px}
  .scene p{font-size:13px}
  .products{grid-template-columns:1fr;gap:14px}
  .prod p{min-height:0}
  .logo-wall{grid-template-columns:repeat(2,1fr)}
  .logo-wall div{height:72px;font-size:14px}
  .cert-row{grid-template-columns:1fr 1fr;gap:10px}
  .cert{padding:14px 10px}
  .cert b{font-size:13px}

  .tabs{gap:6px;margin-bottom:26px}
  .tabs button{height:36px;padding:0 13px;font-size:13px}
  .tab-panels{gap:22px;min-height:0}
  .tab-panels .txt h3{font-size:20px}
  .bullets li{font-size:13.5px}
  .panel-visual{padding:14px}
  .pv-row{font-size:12px;padding:9px 10px;gap:8px}

  .case-strip{gap:12px}
  .quote{padding:20px 18px}
  .case-big{gap:22px;padding:22px 0}
  .case-big h3{font-size:21px}
  .case-metrics{grid-template-columns:1fr 1fr 1fr;gap:8px}
  .case-metrics b{font-size:19px}
  .case-visual{min-height:0;padding:14px}

  .price-grid{gap:14px}
  .price-card{padding:24px 20px}
  .price-card .amount{font-size:32px}
  .cta-band{padding:26px 20px;flex-direction:column;align-items:flex-start;gap:18px}
  .cta-band h2{font-size:21px}
  .cta-band .acts{width:100%}
  .cta-band .acts .btn{flex:1}

  .page-hero{padding:36px 0 34px}
  .page-hero h1{font-size:26px;line-height:1.35}
  .page-hero p{font-size:13.5px}
  .crumb{font-size:11.5px;margin-bottom:10px}

  table.cmp{display:block;overflow-x:auto;white-space:nowrap;font-size:12.5px}
  table.cmp th,table.cmp td{padding:10px 12px}
  .f-grid{grid-template-columns:1fr;gap:22px;padding-bottom:22px}
  .f-bot{flex-direction:column;gap:8px;font-size:11.5px}
  footer.site{padding:36px 0 20px}
  .two{gap:26px}
}