:root{
  --navy:#061631;
  --navy-2:#0a2247;
  --navy-3:#12325e;
  --blue:#1a5bd6;
  --blue-2:#2f7bff;
  --cyan:#22d3ee;
  --ink:#0d1b2a;
  --body:#43536b;
  --muted:#7b8aa0;
  --line:#e5ebf5;
  --line-2:#eef3fa;
  --bg:#f7fafe;
  --white:#fff;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 30px rgba(13,32,66,.07);
  --shadow-lg:0 20px 60px rgba(13,32,66,.12);
  --max:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--white);color:var(--body);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.3;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0 0 1em;padding-left:1.2em}
li{margin:.35em 0}
button{font-family:inherit;cursor:pointer}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
.ic{flex:none;vertical-align:middle}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.04em}

/* ---------- 通用 ---------- */
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--blue);margin-bottom:16px;
}
.kicker::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--blue),var(--cyan));border-radius:2px}
.kicker.light{color:#7fb4ff}
.kicker.light::before{background:linear-gradient(90deg,#7fb4ff,#22d3ee)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;white-space:nowrap;transition:all .22s var(--ease);
}
.btn svg{transition:transform .22s var(--ease)}
.btn:hover svg{transform:translateX(3px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn-primary{
  background:linear-gradient(135deg,var(--blue) 0%,var(--blue-2) 100%);
  color:#fff;box-shadow:0 8px 22px rgba(26,91,214,.28);
}
.btn-primary:hover{box-shadow:0 12px 30px rgba(26,91,214,.38);transform:translateY(-1px);color:#fff}
.btn-ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.24);color:#dce9ff}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5)}
.btn-light{background:#fff;color:var(--navy);box-shadow:0 8px 24px rgba(0,0,0,.15)}
.btn-light:hover{transform:translateY(-1px);color:var(--navy)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.4);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-line{background:#fff;border-color:var(--line);color:var(--ink);box-shadow:var(--shadow)}
.btn-line:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-1px)}

.section{padding:96px 0}
.section-soft{background:var(--bg)}
.sec-head{max-width:720px;margin-bottom:52px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head.row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;max-width:none}
.sec-head h2{font-size:clamp(24px,3vw,36px);letter-spacing:-.02em;margin-bottom:14px}
.sec-head p{font-size:16.5px;color:var(--body);margin:0}
.sec-head.center .kicker{justify-content:center}
.empty{padding:40px 0;color:var(--muted);text-align:center}

/* ---------- 顶栏 ---------- */
.topbar{background:var(--navy);color:#a9bcd8;font-size:13px}
.topbar-in{display:flex;align-items:center;justify-content:space-between;height:40px}
.topbar-left{display:flex;align-items:center;gap:24px}
.tb-item{display:inline-flex;align-items:center;gap:7px}
.tb-item a:hover{color:#fff}
.topbar-right{color:#7f97b8;letter-spacing:.02em}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line-2);
  transition:box-shadow .25s var(--ease);
}
.site-header.scrolled{box-shadow:0 6px 24px rgba(13,32,66,.08)}
.header-in{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px}
.logo{display:flex;align-items:center;gap:11px}
.logo-mark{display:flex}
.logo-txt{display:flex;flex-direction:column;line-height:1.15}
.logo-txt b{font-size:19px;color:var(--navy);letter-spacing:.02em}
.logo-txt i{font-style:normal;font-size:9.5px;letter-spacing:.19em;color:var(--muted);margin-top:3px}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-item{position:relative}
.nav-item>a{
  display:block;padding:10px 15px;font-size:15px;font-weight:500;color:#243449;border-radius:8px;
}
.nav-item>a:hover{color:var(--blue);background:#f4f8ff}
.nav-item>a.active{color:var(--blue);font-weight:600}
.nav-item>a.active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:2px;height:2px;
  background:linear-gradient(90deg,var(--blue),var(--cyan));border-radius:2px;
}
.nav-cta{margin-left:14px}
.drop{
  position:absolute;top:calc(100% + 6px);left:-20px;width:520px;padding-top:10px;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:all .22s var(--ease);
}
.has-drop:hover .drop{opacity:1;visibility:visible;transform:translateY(0)}
.drop-in{
  display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:14px;
  background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-lg);
}
.drop-link{display:flex;gap:11px;padding:11px 12px;border-radius:10px;transition:background .18s var(--ease)}
.drop-link:hover{background:#f3f7ff}
.drop-ic{
  display:flex;align-items:center;justify-content:center;width:34px;height:34px;flex:none;
  border-radius:9px;background:#eaf2ff;color:var(--blue);
}
.drop-link b{display:block;font-size:14px;color:var(--ink);font-weight:600}
.drop-link i{display:block;font-style:normal;font-size:11.5px;color:var(--muted);margin-top:2px;letter-spacing:.03em}
.burger{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;padding:11px 10px}
.burger span{display:block;height:2px;background:var(--navy);border-radius:2px;margin:4px 0;transition:.2s var(--ease)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(140deg,#04122a 0%,#082046 45%,#0a1e3e 100%);color:#cfdcf0}
.hero-deco{position:absolute;inset:0;pointer-events:none}
.hero-grid{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(120,170,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(120,170,255,.07) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 80% 70% at 50% 40%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 80% 70% at 50% 40%,#000 30%,transparent 78%);
}
.glow{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5}
.g1{width:520px;height:520px;background:#1a5bd6;top:-160px;right:-80px}
.g2{width:420px;height:420px;background:#0e7490;bottom:-220px;left:-120px;opacity:.35}
.g3{width:260px;height:260px;background:#2f7bff;top:40%;left:46%;opacity:.18}
.hero-in{
  position:relative;display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center;
  min-height:640px;padding-top:56px;padding-bottom:56px;
}
.hero-left{min-width:0}
.slide{display:none;animation:fadeUp .5s var(--ease) both}
.slide.active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.slide-title{
  font-size:clamp(28px,3.6vw,46px);line-height:1.2;color:#fff;letter-spacing:-.02em;margin:0 0 20px;
  font-weight:700;
}
.hero-sub{font-size:17px;line-height:1.8;color:#a9c0e0;max-width:560px;margin-bottom:32px}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap}
.hero-dots{display:flex;gap:8px;margin-top:38px}
.hero-dots button{
  width:26px;height:3px;border:0;border-radius:3px;background:rgba(255,255,255,.22);padding:0;transition:.25s var(--ease);
}
.hero-dots button.on{width:46px;background:linear-gradient(90deg,#2f7bff,#22d3ee)}
.hero-meta{display:flex;gap:40px;margin-top:38px;padding-top:26px;border-top:1px solid rgba(255,255,255,.1)}
.hero-meta div{display:flex;flex-direction:column}
.hero-meta b{font-size:26px;color:#fff;line-height:1.2;font-weight:700;letter-spacing:-.01em}
.hero-meta b span{font-size:14px;margin-left:2px;color:#9db8dd}
.hero-meta span{font-size:12.5px;color:#8ba3c4;margin-top:6px;letter-spacing:.04em}

/* AI 卡片 */
.hero-right{position:relative;min-width:0}
.ai-card{
  position:relative;background:rgba(12,32,62,.78);border:1px solid rgba(122,170,255,.26);
  border-radius:18px;box-shadow:0 30px 80px rgba(0,0,0,.45);backdrop-filter:blur(10px);overflow:hidden;
}
.ai-head{
  display:flex;align-items:center;gap:9px;padding:13px 16px;border-bottom:1px solid rgba(122,170,255,.16);
  font-size:12.5px;color:#a9c0e0;
}
.ai-head b{font-weight:600;color:#dbe9ff}
.ai-dot{width:7px;height:7px;border-radius:50%;background:#22d3ee;box-shadow:0 0 0 4px rgba(34,211,238,.16);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.ai-live{margin-left:auto;font-size:10px;letter-spacing:.14em;color:#4ade80;border:1px solid rgba(74,222,128,.35);border-radius:4px;padding:1px 6px}
.ai-body{padding:18px 16px;display:flex;flex-direction:column;gap:16px}
.ai-q,.ai-a{display:flex;gap:10px;font-size:13.5px;line-height:1.7}
.ai-who{
  flex:none;width:34px;height:22px;border-radius:6px;background:rgba(255,255,255,.1);color:#cfe0f7;
  font-size:10.5px;display:flex;align-items:center;justify-content:center;margin-top:2px;
}
.ai-who-ai{background:linear-gradient(135deg,#1a5bd6,#22d3ee);color:#04122a;font-weight:700}
.ai-q p{color:#c6d6ee;margin:0}
.ai-a p{color:#9db4d4;margin:0 0 8px}
.ai-hit{
  background:rgba(47,123,255,.12);border:1px solid rgba(47,123,255,.34);border-radius:10px;padding:10px 12px;margin-bottom:10px;
}
.ai-hit b{display:block;color:#e8f2ff;font-size:13px;margin-bottom:3px}
.ai-hit span{font-size:11.5px;color:#8fb4e6}
.ai-line{height:6px;border-radius:4px;background:rgba(255,255,255,.09);margin-bottom:7px}
.ai-line.short{width:62%}
.ai-note{font-size:11px;color:#6e88ab;margin-top:10px!important}
.ai-foot{
  display:flex;align-items:center;justify-content:space-between;padding:11px 16px;
  border-top:1px solid rgba(122,170,255,.16);font-size:11px;color:#88a3c6;
}
.ai-foot span{display:inline-flex;align-items:center;gap:6px}
.ai-badge{
  position:absolute;padding:6px 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#d6e6ff;backdrop-filter:blur(6px);
}
.b1{top:-16px;left:-14px;animation:float 5s ease-in-out infinite}
.b2{bottom:-16px;right:32px;animation:float 6.5s ease-in-out infinite .6s}
.b3{top:38%;right:-26px;animation:float 5.8s ease-in-out infinite .3s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}

/* ---------- 合作 logo ---------- */
.logos{border-bottom:1px solid var(--line-2);background:#fff;padding:28px 0}
.logos-title{text-align:center;font-size:12px;letter-spacing:.16em;color:var(--muted);margin-bottom:18px;text-transform:uppercase}
.logos-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:14px 44px}
.logo-item{font-size:16px;font-weight:600;color:#93a4bd;letter-spacing:.02em;transition:color .2s var(--ease)}
.logo-item:hover{color:var(--navy)}

/* ---------- 服务卡 ---------- */
.serv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.serv-card{
  display:flex;flex-direction:column;padding:28px 26px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);transition:all .25s var(--ease);position:relative;overflow:hidden;
}
.serv-card::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius);pointer-events:none;
  background:linear-gradient(140deg,rgba(26,91,214,.05),transparent 45%);opacity:0;transition:opacity .25s var(--ease);
}
.serv-card:hover{transform:translateY(-4px);border-color:#c9dcff;box-shadow:var(--shadow-lg)}
.serv-card:hover::after{opacity:1}
.serv-ic{
  display:flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:13px;
  background:linear-gradient(140deg,#eef5ff,#e2eeff);color:var(--blue);margin-bottom:18px;
}
.serv-ic.lg{width:56px;height:56px;border-radius:16px}
.serv-card h3{font-size:17.5px;margin-bottom:10px}
.serv-card p{font-size:14px;line-height:1.75;color:var(--body);margin-bottom:18px;flex:1}
.serv-more{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--blue)}
.serv-card:hover .serv-more svg{transform:translateX(3px)}
.serv-more svg{transition:transform .2s var(--ease)}

/* ---------- AEO ---------- */
.section-aeo{background:linear-gradient(160deg,#04122a,#0a2247 60%,#0d2a52);color:#b9cbe4;position:relative;overflow:hidden}
.section-aeo::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(120,170,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(120,170,255,.06) 1px,transparent 1px);
  background-size:56px 56px;mask-image:radial-gradient(ellipse at 70% 40%,#000,transparent 72%);
  -webkit-mask-image:radial-gradient(ellipse at 70% 40%,#000,transparent 72%);
}
.aeo-in{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.aeo-left h2{color:#fff;font-size:clamp(24px,3vw,36px);margin-bottom:18px}
.aeo-left p{color:#a9c0e0;font-size:16px;margin-bottom:22px}
.aeo-left strong{color:#fff;font-weight:600}
.check-list{list-style:none;padding:0;margin:0 0 30px}
.check-list li{position:relative;padding-left:26px;font-size:14.5px;color:#b6cbe6;margin:10px 0}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:8px;
  border-left:2px solid #22d3ee;border-bottom:2px solid #22d3ee;transform:rotate(-45deg);
}
.compare{display:flex;align-items:center;gap:14px}
.cmp-card{
  flex:1;background:rgba(255,255,255,.05);border:1px solid rgba(122,170,255,.2);border-radius:14px;padding:22px 20px;
}
.cmp-card.new{background:rgba(47,123,255,.16);border-color:rgba(47,123,255,.5);box-shadow:0 16px 40px rgba(26,91,214,.3)}
.cmp-tag{font-size:10.5px;letter-spacing:.14em;color:#8fb4e6;margin-bottom:8px;text-transform:uppercase}
.cmp-card.new .cmp-tag{color:#8fd0ff}
.cmp-card h4{color:#fff;font-size:15px;margin-bottom:14px}
.cmp-card ul{list-style:none;padding:0;margin:0}
.cmp-card li{font-size:12.5px;color:#a3b9d6;padding:5px 0;border-top:1px dashed rgba(255,255,255,.09)}
.cmp-card li:first-child{border:0}
.cmp-arrow{color:#4f7fc0;flex:none}

/* ---------- WHY ---------- */
.why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px 56px}
.why-item{padding-left:0}
.why-num{
  font-size:13px;font-weight:700;color:var(--blue);letter-spacing:.1em;
  display:inline-block;margin-bottom:10px;padding:3px 9px;background:#eef4ff;border-radius:6px;
}
.why-item h3{font-size:18px;margin-bottom:10px}
.why-item p{font-size:14.5px;line-height:1.8;margin:0}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.case-grid.list{grid-template-columns:repeat(3,1fr)}
.case-card{
  display:flex;flex-direction:column;padding:26px;border:1px solid var(--line);border-radius:var(--radius);
  background:#fff;transition:all .25s var(--ease);
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#c9dcff}
.case-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.case-ind{font-size:11.5px;font-weight:600;color:var(--blue);background:#eef4ff;padding:4px 10px;border-radius:6px;letter-spacing:.04em}
.case-period{font-size:11.5px;color:var(--muted)}
.case-card h3{font-size:17px;margin-bottom:10px;line-height:1.45}
.case-card p{font-size:13.5px;line-height:1.75;color:var(--body);margin-bottom:20px;flex:1}
.case-metrics{display:flex;gap:8px;padding:14px 0;border-top:1px solid var(--line-2);margin-bottom:14px}
.case-metrics div{flex:1;text-align:center;min-width:0}
.case-metrics b{display:block;font-size:17px;color:var(--blue);letter-spacing:-.01em}
.case-metrics span{font-size:11px;color:var(--muted);display:block;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.case-more{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;color:var(--ink)}
.case-card:hover .case-more{color:var(--blue)}

/* ---------- 流程 ---------- */
.proc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.proc-item{
  position:relative;padding:26px 24px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);
  transition:all .25s var(--ease);
}
.proc-item:hover{border-color:#c9dcff;box-shadow:var(--shadow)}
.proc-step{
  display:inline-block;font-family:ui-monospace,Menlo,monospace;font-size:26px;font-weight:700;
  color:#dbe7fa;letter-spacing:-.02em;line-height:1;margin-bottom:14px;
}
.proc-item h3{font-size:16.5px;margin-bottom:8px}
.proc-item p{font-size:13.5px;line-height:1.75;margin:0;color:var(--body)}

/* ---------- 资讯 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
  display:flex;flex-direction:column;padding:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  transition:all .25s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#c9dcff}
.news-cat{font-size:11px;font-weight:600;color:#0e7490;background:#e6f7fb;padding:3px 9px;border-radius:5px;align-self:flex-start;margin-bottom:14px}
.news-card h3{font-size:16.5px;line-height:1.5;margin-bottom:10px;transition:color .2s var(--ease)}
.news-card:hover h3{color:var(--blue)}
.news-card p{font-size:13.5px;line-height:1.75;color:var(--body);flex:1;margin-bottom:18px}
.news-foot{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted);padding-top:14px;border-top:1px solid var(--line-2)}

/* ---------- CTA + footer ---------- */
.cta-band{background:linear-gradient(120deg,#0a2247,#12325e 55%,#1a4a8f);padding:56px 0;position:relative;overflow:hidden}
.cta-band::after{
  content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:#2f7bff;filter:blur(90px);
  opacity:.28;right:-60px;top:-140px;
}
.cta-in{position:relative;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-in h2{color:#fff;font-size:clamp(20px,2.4vw,28px);margin-bottom:10px}
.cta-in p{color:#a9c0e0;margin:0;font-size:15px;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

.site-footer{background:#04101f;color:#8a9cb5;padding:64px 0 0;font-size:13.5px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 0.9fr 1fr;gap:48px;padding-bottom:48px}
.foot-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-logo b{color:#fff;font-size:17px;letter-spacing:.02em}
.foot-about p{line-height:1.8;margin-bottom:20px;color:#7d90aa}
.foot-contact div{display:flex;gap:9px;align-items:flex-start;margin:9px 0;color:#8a9cb5}
.foot-contact svg{margin-top:3px;color:#4d6b95}
.foot-contact a:hover{color:#fff}
.foot-col h4{color:#fff;font-size:14px;margin-bottom:18px;letter-spacing:.02em}
.foot-col ul{list-style:none;padding:0;margin:0}
.foot-col li{margin:10px 0}
.foot-col a{color:#8a9cb5}
.foot-col a:hover{color:#fff}
.qr-box{text-align:left}
.qr-box img,.qr-ph{width:112px;height:112px;border-radius:10px;background:#fff;object-fit:cover}
.qr-ph{display:flex;flex-direction:column;align-items:center;justify-content:center;background:#0d1c30;border:1px dashed #24405f;color:#4d6b95;gap:3px}
.qr-ph span{font-size:12px}
.qr-ph small{font-size:10px}
.qr-box p{margin-top:10px;font-size:12px;color:#7d90aa}
.foot-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;
  padding:20px 0;border-top:1px solid #12233a;font-size:12.5px;color:#6b7f99;
}
.foot-bottom a:hover{color:#fff}

/* 浮动条 */
.float-bar{position:fixed;right:18px;bottom:24px;z-index:90;display:flex;flex-direction:column;gap:8px}
.fb-item{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  width:52px;height:52px;border-radius:13px;background:#fff;border:1px solid var(--line);
  box-shadow:0 8px 24px rgba(13,32,66,.12);color:var(--navy);transition:all .2s var(--ease);padding:0;
}
.fb-item:hover{background:var(--blue);color:#fff;border-color:var(--blue);transform:translateY(-2px)}
.fb-item em{font-style:normal;font-size:9.5px;letter-spacing:.02em}

/* ---------- 内页头 ---------- */
.phero{
  position:relative;overflow:hidden;padding:64px 0 60px;
  background:linear-gradient(140deg,#04122a,#0a2247 55%,#0d2a52);color:#a9c0e0;
}
.phero .hero-grid{opacity:.7}
.phero .glow{opacity:.35}
.phero h1{color:#fff;font-size:clamp(24px,3.2vw,38px);letter-spacing:-.02em;margin-bottom:14px;position:relative}
.phero p{color:#a9c0e0;font-size:16px;max-width:720px;margin:0;position:relative}
.phero .kicker{position:relative}
.crumbs{display:flex;align-items:center;gap:8px;font-size:12.5px;color:#7d96b8;margin-bottom:20px;position:relative;flex-wrap:wrap}
.crumbs a:hover{color:#fff}
.crumbs em{font-style:normal;color:#c3d5ec;max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.crumbs .sep{color:#3f5b7d}

/* ---------- 服务列表 ---------- */
.srv-list{display:flex;flex-direction:column;gap:14px}
.srv-row{
  display:flex;align-items:center;gap:26px;padding:26px 28px;border:1px solid var(--line);border-radius:var(--radius);
  background:#fff;transition:all .25s var(--ease);
}
.srv-row:hover{border-color:#c9dcff;box-shadow:var(--shadow-lg);transform:translateX(3px)}
.srv-row-l{display:flex;align-items:center;gap:16px;flex:none}
.srv-no{font-family:ui-monospace,Menlo,monospace;font-size:13px;color:#c3d1e6;font-weight:700}
.srv-row-main{flex:1;min-width:0}
.srv-row-main h2{font-size:19px;margin-bottom:8px;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.srv-row-main h2 i{font-style:normal;font-size:10.5px;letter-spacing:.12em;color:var(--muted);text-transform:uppercase;font-weight:500}
.srv-row-main p{font-size:14px;color:var(--body);margin-bottom:12px}
.tag-row{display:flex;flex-wrap:wrap;gap:7px}
.tag{font-size:11.5px;color:#4a6b96;background:#f1f6fd;border:1px solid #e4edf9;padding:2px 9px;border-radius:5px;font-weight:500}
.srv-row-r{flex:none;color:#b9cae2;transition:all .25s var(--ease)}
.srv-row:hover .srv-row-r{color:var(--blue);transform:translateX(4px)}

/* ---------- 选型 ---------- */
.pick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pick{padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.pick b{display:block;font-family:ui-monospace,Menlo,monospace;font-size:12px;color:var(--blue);margin-bottom:12px}
.pick h3{font-size:16px;margin-bottom:8px}
.pick p{font-size:13.5px;line-height:1.7;margin-bottom:12px}
.pick a{font-size:13px;font-weight:600;color:var(--blue)}

/* ---------- 两栏正文 ---------- */
.two-col{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start}
.article-body{font-size:16px;line-height:1.9;color:#3b4a60;min-width:0}
.article-body.single{max-width:820px;margin:0 auto;font-size:16.5px}
.article-body h2{
  font-size:22px;margin:40px 0 16px;padding-left:14px;border-left:3px solid var(--blue);line-height:1.4;
}
.article-body h3{font-size:18px;margin:28px 0 12px}
.article-body p{margin:0 0 18px}
.article-body strong{color:var(--ink);font-weight:600}
.article-body ul,.article-body ol{padding-left:1.3em;margin:0 0 18px}
.article-body li{margin:8px 0}
.article-body li::marker{color:var(--blue)}
.article-body em{font-style:normal;display:block;padding:14px 18px;background:#f4f8ff;border-left:3px solid #b9d4ff;border-radius:0 8px 8px 0;font-size:14.5px;color:#4a6285}
.article-body a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}
.article-body blockquote{margin:0 0 18px;padding:16px 20px;background:#f7fafe;border-radius:10px;color:#4a6285;font-size:15px}
.article-meta{display:flex;gap:22px;flex-wrap:wrap;padding-bottom:22px;margin-bottom:32px;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-cta{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  margin-top:48px;padding:28px 30px;border-radius:var(--radius);
  background:linear-gradient(120deg,#f2f7ff,#eaf2ff);border:1px solid #d8e6ff;
}
.article-cta h3{font-size:17px;margin-bottom:6px}
.article-cta p{font-size:13.5px;margin:0;color:#5a6f8c;max-width:520px}

.side{display:flex;flex-direction:column;gap:18px;position:sticky;top:96px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.side-card h4{font-size:14px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line-2)}
.side-links{list-style:none;padding:0;margin:0}
.side-links li{margin:0}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 0;font-size:13.5px;color:#3b4a60;border-bottom:1px dashed var(--line-2);
}
.side-links li:last-child a{border:0}
.side-links a:hover{color:var(--blue)}
.side-links a span{color:#c3d1e6;flex:none}
.side-contact .side-phone{display:block;font-size:22px;font-weight:700;color:var(--navy);letter-spacing:-.01em;margin-bottom:4px}
.side-contact p{font-size:12.5px;color:var(--muted);margin-bottom:10px}
.side-mail{display:block;font-size:13px;color:var(--blue);margin-bottom:16px;word-break:break-all}
.side-card .btn{margin-top:4px}

/* ---------- 指标带 ---------- */
.metric-band{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-bottom:56px;
}
.metric{background:#fff;padding:26px 20px;text-align:center}
.metric b{display:block;font-size:26px;color:var(--navy);letter-spacing:-.02em;margin-bottom:6px}
.metric span{font-size:12.5px;color:var(--muted)}

/* ---------- 资讯列表 ---------- */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px}
.filter{
  padding:7px 16px;border-radius:999px;font-size:13.5px;color:#5a6f8c;background:#fff;border:1px solid var(--line);
  transition:all .2s var(--ease);
}
.filter:hover{border-color:#b9d4ff;color:var(--blue)}
.filter.on{background:var(--navy);border-color:var(--navy);color:#fff}
.news-list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.news-row{display:flex;gap:28px;padding:28px 0;border-bottom:1px solid var(--line);transition:all .22s var(--ease)}
.news-row:hover{background:#fafcff;padding-left:12px}
.news-row-date{flex:none;width:64px;text-align:center;padding-top:4px}
.news-row-date b{display:block;font-size:26px;color:var(--navy);line-height:1;letter-spacing:-.02em}
.news-row-date span{font-size:11.5px;color:var(--muted);letter-spacing:.06em}
.news-row-main{flex:1;min-width:0}
.news-row-main h2{font-size:18px;margin:8px 0 10px;line-height:1.45;transition:color .2s var(--ease)}
.news-row:hover h2{color:var(--blue)}
.news-row-main p{font-size:14px;line-height:1.75;margin-bottom:12px}
.news-row-meta{display:flex;gap:18px;font-size:12px;color:var(--muted)}
.news-row-meta span{display:inline-flex;align-items:center;gap:5px}
.news-row-r{flex:none;display:flex;align-items:center;color:#c3d1e6}
.news-row:hover .news-row-r{color:var(--blue)}

/* ---------- 分页 ---------- */
.pager{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:48px;flex-wrap:wrap}
.pg-num,.pg-btn{
  display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:40px;padding:0 14px;
  border:1px solid var(--line);border-radius:9px;font-size:13.5px;color:#4a5c75;background:#fff;transition:all .2s var(--ease);
}
.pg-num:hover,.pg-btn:hover{border-color:var(--blue);color:var(--blue)}
.pg-num.on{background:var(--blue);border-color:var(--blue);color:#fff}
.pg-dot{color:var(--muted);padding:0 4px}

/* ---------- 关于 ---------- */
.stat-band{background:var(--bg);border-bottom:1px solid var(--line-2);padding:36px 0}
.stat-in{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat b{display:block;font-size:32px;color:var(--navy);letter-spacing:-.02em;line-height:1.2}
.stat span{font-size:13px;color:var(--muted)}
.area-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.area{padding:22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.area b{display:block;font-size:17px;color:var(--navy);margin-bottom:6px}
.area span{font-size:12.5px;color:var(--muted);line-height:1.7}

/* ---------- 联系 ---------- */
.contact-in{display:grid;grid-template-columns:1fr 460px;gap:64px;align-items:start}
.contact-left h2{font-size:24px;margin-bottom:14px}
.contact-lead{font-size:15px;color:var(--body);margin-bottom:30px}
.contact-lead p{margin-bottom:10px}
.contact-items{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:30px}
.c-item{display:flex;gap:13px;padding:18px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff}
.c-ic{
  display:flex;align-items:center;justify-content:center;width:38px;height:38px;flex:none;border-radius:10px;
  background:#eef4ff;color:var(--blue);
}
.c-item b{display:block;font-size:12.5px;color:var(--muted);font-weight:500;margin-bottom:4px}
.c-item p{font-size:14px;color:var(--ink);margin:0;line-height:1.6;word-break:break-word}
.c-item a:hover{color:var(--blue)}
.c-mobile{margin-left:10px;color:var(--muted)}
.map-box{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.map-ph{position:relative;height:250px;background:#eef3fa;display:flex;align-items:center;justify-content:center;padding-bottom:76px}
.map-grid{
  position:absolute;inset:0;
  background-image:linear-gradient(#dbe6f5 1px,transparent 1px),linear-gradient(90deg,#dbe6f5 1px,transparent 1px);
  background-size:36px 36px;
}
.map-pin{
  position:relative;width:56px;height:56px;border-radius:50%;background:#fff;color:var(--blue);
  display:flex;align-items:center;justify-content:center;box-shadow:0 10px 26px rgba(26,91,214,.2);
}
.map-pin::after{
  content:"";position:absolute;inset:-10px;border-radius:50%;border:1px solid rgba(26,91,214,.3);
  animation:ping 2.2s ease-out infinite;
}
@keyframes ping{0%{transform:scale(.85);opacity:1}100%{transform:scale(1.5);opacity:0}}
.map-txt{
  position:absolute;left:20px;bottom:16px;right:20px;background:rgba(255,255,255,.94);border-radius:10px;
  padding:12px 14px;box-shadow:0 8px 20px rgba(13,32,66,.08);
}
.map-txt b{display:block;font-size:13.5px;color:var(--navy)}
.map-txt span{display:block;font-size:12px;color:var(--muted);margin:2px 0 4px}
.map-txt i{font-style:normal;font-size:10.5px;color:#a8b7cc}

.form-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:32px;box-shadow:var(--shadow)}
.form-card h3{font-size:20px;margin-bottom:6px}
.form-sub{font-size:12.5px;color:var(--muted);margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:#3b4a60;font-weight:500;margin-bottom:6px}
.field input,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:14px;
  font-family:inherit;color:var(--ink);background:#fbfdff;transition:all .2s var(--ease);resize:vertical;
}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(26,91,214,.1);
}
.field input::placeholder,.field textarea::placeholder{color:#a8b7cc}
.field.has-err input,.field.has-err textarea{border-color:#e05c5c;background:#fff8f8}
.field em{display:block;font-style:normal;font-size:12px;color:#d64545;margin-top:5px}
.form-note{font-size:11.5px;color:var(--muted);text-align:center;margin:14px 0 0}
.form-note a{color:var(--blue)}
.form-ok{background:#fff;border:1px solid var(--line);border-radius:18px;padding:40px 32px;text-align:center;box-shadow:var(--shadow)}
.ok-ic{
  display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;border-radius:50%;
  background:#e8f8ee;color:#1a9e55;margin-bottom:18px;
}
.form-ok h3{font-size:20px;margin-bottom:10px}
.form-ok p{font-size:14px;color:var(--body);margin-bottom:22px}

/* ---------- 搜索 / 404 ---------- */
.search-form{display:flex;gap:10px;max-width:640px;margin-bottom:36px}
.search-form input{
  flex:1;padding:13px 16px;border:1px solid var(--line);border-radius:10px;font-size:14.5px;font-family:inherit;
}
.search-form input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(26,91,214,.1)}
.search-list{display:flex;flex-direction:column;gap:14px}
.search-item{padding:20px 24px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:all .2s var(--ease)}
.search-item:hover{border-color:#c9dcff;box-shadow:var(--shadow)}
.search-item h3{font-size:16px;margin:10px 0 8px}
.search-item p{font-size:13.5px;margin:0;color:var(--body)}
.nf-box{text-align:center;padding:20px 0 40px}
.nf-box p{color:var(--muted);margin-bottom:24px}
.nf-links{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease);transition-delay:var(--d,0ms)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .hero-in{grid-template-columns:1fr;min-height:0;gap:44px;padding-top:64px;padding-bottom:72px}
  .hero-right{max-width:520px}
  .aeo-in{grid-template-columns:1fr;gap:40px}
  .serv-grid,.case-grid,.case-grid.list,.news-grid,.proc-grid{grid-template-columns:repeat(2,1fr)}
  .pick-grid{grid-template-columns:repeat(2,1fr)}
  .area-grid{grid-template-columns:repeat(2,1fr)}
  .two-col{grid-template-columns:1fr;gap:36px}
  .side{position:static;flex-direction:row;flex-wrap:wrap}
  .side-card{flex:1;min-width:260px}
  .contact-in{grid-template-columns:1fr;gap:40px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
  .topbar-right{display:none}
}
@media (max-width:860px){
  .hide-sm{display:none!important}
  .burger{display:block}
  .header-in{height:64px}
  .main-nav{
    position:fixed;top:104px;left:0;right:0;bottom:0;z-index:99;
    flex-direction:column;align-items:stretch;gap:2px;padding:16px 20px 40px;
    background:#fff;overflow-y:auto;transform:translateY(-8px);opacity:0;visibility:hidden;
    transition:all .22s var(--ease);
  }
  .main-nav.open{transform:none;opacity:1;visibility:visible}
  .nav-item>a{padding:14px 6px;font-size:16px;border-bottom:1px solid var(--line-2);border-radius:0}
  .nav-item>a.active::after{display:none}
  .drop{position:static;width:auto;opacity:1;visibility:visible;transform:none;padding:0}
  .drop-in{display:block;border:0;box-shadow:none;padding:0 0 8px 10px}
  .drop-link{padding:9px 8px}
  .nav-cta{margin:16px 0 0;display:flex}
  .section{padding:64px 0}
  .sec-head{margin-bottom:36px}
  .sec-head.row{flex-direction:column;align-items:flex-start;gap:18px}
  .why-grid{grid-template-columns:1fr;gap:22px}
  .compare{flex-direction:column}
  .cmp-arrow{transform:rotate(90deg)}
  .cta-in{flex-direction:column;align-items:flex-start;gap:24px}
  .news-row{gap:16px}
  .news-row-date{width:48px}
  .news-row-date b{font-size:20px}
  .srv-row{flex-wrap:wrap;gap:16px;padding:22px}
  .srv-row-r{display:none}
  .contact-items{grid-template-columns:1fr}
  .float-bar{right:12px;bottom:16px}
  .fb-item{width:46px;height:46px;border-radius:11px}
  .fb-item em{display:none}
  .stat-in{grid-template-columns:repeat(2,1fr);gap:18px}
}
@media (max-width:600px){
  .container{padding:0 18px}
  .serv-grid,.case-grid,.case-grid.list,.news-grid,.proc-grid,.pick-grid,.area-grid{grid-template-columns:1fr}
  .hero-meta{gap:24px;flex-wrap:wrap}
  .hero-meta b{font-size:22px}
  .slide-title{font-size:26px}
  .hero-sub{font-size:15.5px}
  .b1,.b2,.b3{display:none}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .article-cta{padding:22px}
  .article-body h2{font-size:19px}
  .form-card{padding:24px}
  .sec-head h2{font-size:22px}
  .srv-row-l{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}