:root{
  --brand:#2f6bff;
  --brand-2:#18b6e6;
  --brand-deep:#0a2a66;
  --grad:linear-gradient(135deg,#0a2a66 0%,#2f6bff 58%,#18b6e6 100%);
  --ink:#1d2129;
  --ink-2:#4e5969;
  --muted:#86909c;
  --line:#e5e8ef;
  --bg-alt:#f6f8fc;
  --card:#ffffff;
  --radius:16px;
  --shadow:0 6px 24px rgba(20,40,90,.08);
  --shadow-hover:0 14px 40px rgba(20,60,160,.16);
  --header-h:64px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:#fff;line-height:1.7;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:50;height:var(--header-h);
  background:rgba(255,255,255,.7);backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid transparent;transition:box-shadow .25s,border-color .25s,background .25s;
}
.site-header.scrolled{box-shadow:0 4px 20px rgba(20,40,90,.08);border-color:var(--line);background:rgba(255,255,255,.92)}
.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{width:30px;height:30px;border-radius:9px;background:var(--grad);position:relative;flex:0 0 auto;box-shadow:0 4px 12px rgba(47,107,255,.4)}
.brand-mark::after{content:"";position:absolute;inset:8px 8px auto auto;width:9px;height:9px;border-radius:3px;background:#fff;opacity:.9}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:16px;letter-spacing:.5px}
.brand-text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.5px}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{padding:8px 14px;border-radius:8px;font-size:14.5px;color:var(--ink-2);transition:color .2s,background .2s}
.main-nav a:hover{color:var(--brand);background:rgba(47,107,255,.07)}
.main-nav .nav-cta{background:var(--grad);color:#fff;font-weight:600;margin-left:6px;box-shadow:0 4px 14px rgba(47,107,255,.35)}
.main-nav .nav-cta:hover{color:#fff;filter:brightness(1.06)}
.header-right{display:flex;align-items:center;gap:12px}
.lang-hint{font-size:14px;font-weight:600;color:var(--brand)}
.menu-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:40px;height:34px;background:none;border:0;cursor:pointer}
.menu-toggle span{height:2px;width:22px;background:var(--ink);border-radius:2px;transition:.25s}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;color:#fff;background-image:linear-gradient(120deg,rgba(10,42,102,.90),rgba(47,107,255,.66) 58%,rgba(24,182,230,.5)),url(../img/hero.png);background-size:cover;background-position:center;padding:calc(var(--header-h) + 70px) 0 84px;min-height:92vh;display:flex;align-items:center}
.hero-bg{position:absolute;inset:0;z-index:0;overflow:hidden}
.hero-bg .blob{position:absolute;border-radius:50%;filter:blur(60px);opacity:.55}
.hero-bg .b1{width:420px;height:420px;background:#5fa8ff;top:-120px;right:-80px}
.hero-bg .b2{width:360px;height:360px;background:#13c2c2;bottom:-120px;left:-60px;opacity:.4}
.hero-bg .grid-lines{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);background-size:46px 46px;mask-image:radial-gradient(circle at 50% 40%,#000 30%,transparent 75%);-webkit-mask-image:radial-gradient(circle at 50% 40%,#000 30%,transparent 75%)}
.hero-inner{position:relative;z-index:1;max-width:900px}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:2px;text-transform:uppercase;color:rgba(255,255,255,.82);font-weight:600;margin-bottom:18px;padding:6px 14px;border:1px solid rgba(255,255,255,.25);border-radius:999px}
.hero h1{font-size:clamp(28px,5vw,50px);line-height:1.18;font-weight:800;letter-spacing:.5px;margin-bottom:18px}
.hero-slogan{font-size:clamp(22px,4vw,40px);font-weight:800;margin-bottom:20px;letter-spacing:.5px}
.hero-slogan .plus{color:var(--brand-2);margin:0 4px}
.hero-slogan .comma{color:rgba(255,255,255,.7)}
.hero-slogan .hl{background:linear-gradient(90deg,#9fe7ff,#ffffff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:clamp(15px,1.6vw,18px);color:rgba(255,255,255,.9);max-width:760px;margin-bottom:30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:46px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 26px;border-radius:10px;font-size:15px;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s,filter .2s;border:1px solid transparent}
.btn-primary{background:#fff;color:var(--brand-deep);box-shadow:0 8px 24px rgba(0,0,0,.18)}
.btn-primary:hover{transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.2)}

.hero-biz{margin-top:6px}
.hero-biz-label{display:block;font-size:13px;color:rgba(255,255,255,.8);margin-bottom:12px;letter-spacing:1px}
.hero-biz-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.hero-biz-item{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.28);border-radius:12px;padding:14px 16px;transition:background .2s,transform .2s}
.hero-biz-item:hover{background:rgba(255,255,255,.2);transform:translateY(-3px)}
.hero-biz-item .num{font-size:13px;font-weight:700;color:var(--brand-2)}
.hero-biz-item .t{font-size:15px;font-weight:600}

/* ---------- Sections ---------- */
.section{padding:88px 0}
.section-alt{background:var(--bg-alt)}
.section-head{max-width:720px;margin:0 auto 48px;text-align:center}
.section-head .eyebrow{background:rgba(47,107,255,.1);color:var(--brand);border:0;padding:5px 12px;margin-bottom:14px}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:800;letter-spacing:.5px}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:15.5px}
.block-title{font-size:20px;font-weight:800;margin:54px 0 26px;padding-left:12px;border-left:4px solid var(--brand)}

/* About */
.about-text{max-width:880px;margin:0 auto}
.about-text p{margin-bottom:18px;color:var(--ink-2);font-size:15.5px;text-align:justify}
.stats{list-style:none;display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin:40px auto;max-width:1000px}
.stats li{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px 14px;text-align:center;box-shadow:var(--shadow)}
.stats strong{display:block;font-size:28px;font-weight:800;color:var(--brand);line-height:1.1}
.stats span{font-size:13px;color:var(--muted)}

.timeline{list-style:none;position:relative;max-width:860px;margin:0 auto;padding-left:28px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--brand),var(--brand-2))}
.timeline li{position:relative;padding:0 0 30px 22px}
.timeline .dot{position:absolute;left:-28px;top:4px;width:16px;height:16px;border-radius:50%;background:#fff;border:3px solid var(--brand);box-shadow:0 0 0 4px rgba(47,107,255,.12)}
.timeline .year{font-size:14px;font-weight:700;color:var(--brand)}
.timeline h4{font-size:17px;margin:4px 0 6px}
.timeline p{color:var(--ink-2);font-size:14.5px}
.timeline li.future .dot{border-color:var(--muted);box-shadow:0 0 0 4px rgba(134,144,156,.12)}
.timeline li.future .year{color:var(--muted)}

.culture-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:46px}
.culture-strip>div{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.culture-strip .ct{display:inline-block;font-size:12.5px;font-weight:700;color:var(--brand);background:rgba(47,107,255,.1);padding:4px 12px;border-radius:999px;margin-bottom:12px}
.culture-strip p{font-size:14.5px;color:var(--ink-2)}

/* Business Tabs */
.tabs{max-width:1000px;margin:0 auto}
.tab-nav{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-bottom:28px}
.tab-btn{padding:11px 22px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:15px;font-weight:600;color:var(--ink-2);cursor:pointer;transition:.2s}
.tab-btn:hover{border-color:var(--brand);color:var(--brand)}
.tab-btn.active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 6px 18px rgba(47,107,255,.3)}
.tab-panels{position:relative}
.tab-panel{display:none;grid-template-columns:1.1fr .9fr;gap:30px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:34px;box-shadow:var(--shadow);animation:fadeUp .45s ease both}
.tab-panel.active{display:grid}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.tp-text h3{font-size:22px;margin-bottom:12px}
.tp-text>p{color:var(--ink-2);font-size:15px;margin-bottom:18px}
.tp-list{list-style:none;display:grid;gap:10px}
.tp-list li{position:relative;padding-left:24px;color:var(--ink);font-size:14.5px}
.tp-list li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;background:var(--brand)}
.tp-visual{border-radius:16px;min-height:240px;position:relative;overflow:hidden}
.tp-visual.v0{background:linear-gradient(135deg,#2f6bff,#18b6e6)}
.tp-visual.v1{background:linear-gradient(135deg,#0a2a66,#2f6bff)}
.tp-visual.v2{background:linear-gradient(135deg,#5b8cff,#9b5bff)}
.tp-visual.v3{background:linear-gradient(135deg,#13c2c2,#2f6bff)}
.tp-visual::after{content:attr(class);position:absolute;right:14px;bottom:12px;color:rgba(255,255,255,.5);font-size:12px;letter-spacing:1px}

/* Partner */
.partner-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start;max-width:1040px;margin:0 auto}
.partner-pitch{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:32px;box-shadow:var(--shadow)}
.pitch-badge{display:inline-block;background:var(--grad);color:#fff;font-weight:800;font-size:16px;padding:10px 18px;border-radius:10px;margin-bottom:18px;box-shadow:0 8px 20px rgba(47,107,255,.3)}
.partner-pitch>p{color:var(--ink-2);font-size:15px;margin-bottom:18px}
.pitch-list{list-style:none;display:grid;gap:11px}
.pitch-list li{position:relative;padding-left:26px;color:var(--ink);font-size:14.5px}
.pitch-list li::before{content:"✓";position:absolute;left:0;top:0;color:var(--brand);font-weight:800}
.partner-form{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:32px;box-shadow:var(--shadow)}
.partner-form h3{font-size:19px;margin-bottom:18px}
.field{margin-bottom:15px}
.field label{display:block;font-size:13.5px;color:var(--ink-2);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:10px;font-size:14.5px;font-family:inherit;background:#fff;color:var(--ink);transition:border-color .2s,box-shadow .2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,107,255,.14)}
.field textarea{resize:vertical}
.partner-form .btn{width:100%;margin-top:6px}
.form-tip{font-size:13.5px;margin-top:12px;min-height:18px}
.form-tip.ok{color:#1a7f37}
.form-tip.err{color:#cf222e}

/* News */
.news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.news-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.news-meta{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.news-meta .tag{font-size:12px;font-weight:600;color:var(--brand);background:rgba(47,107,255,.1);padding:3px 10px;border-radius:999px}
.news-meta time{font-size:12.5px;color:var(--muted)}
.news-card h3{font-size:17px;margin-bottom:8px;line-height:1.4}
.news-card p{color:var(--ink-2);font-size:14px}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;max-width:1040px;margin:0 auto}
.contact-info{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:16px}
.ci-item{padding-bottom:14px;border-bottom:1px solid var(--line)}
.ci-item:last-child{border-bottom:0;padding-bottom:0}
.ci-label{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}
.ci-item strong{font-size:18px;color:var(--brand-deep)}
.ci-item a:hover{color:var(--brand)}
.ci-item p{font-size:14.5px;color:var(--ink-2)}
.contact-map{position:relative;border-radius:20px;min-height:320px;background:#e9eef7;overflow:hidden}
.map-fallback{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:#fff;text-align:center;padding:24px;background:linear-gradient(135deg,#0a2a66,#2f6bff)}
.map-fallback::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);background-size:40px 40px;mask-image:radial-gradient(circle,#000 35%,transparent 75%);-webkit-mask-image:radial-gradient(circle,#000 35%,transparent 75%)}
.map-pin{font-size:22px;font-weight:800;z-index:1}
.map-note{font-size:13px;color:rgba(255,255,255,.85);z-index:1}
#amap{position:absolute;inset:0;width:100%;height:100%}

/* Footer */
.site-footer{background:#0b1430;color:#c9d2e3;padding:56px 0 24px}
.footer-inner{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand{display:flex;gap:12px;align-items:center}
.footer-brand .brand-mark{width:36px;height:36px}
.footer-brand strong{display:block;color:#fff;font-size:15px}
.footer-brand p{font-size:13px;color:#8b97b5}
.footer-cols{display:flex;gap:56px;flex-wrap:wrap}
.footer-cols h4{color:#fff;font-size:14px;margin-bottom:12px}
.footer-cols p{font-size:13.5px;color:#aab4cf;margin-bottom:6px}
.footer-cols a{color:#aab4cf}
.footer-cols a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:20px;font-size:12.5px;color:#7e8aab}

/* Floating consult */
.consult-fab{position:fixed;right:22px;bottom:22px;z-index:60;background:var(--grad);color:#fff;border:0;border-radius:999px;padding:14px 22px;font-size:15px;font-weight:700;cursor:pointer;box-shadow:0 10px 26px rgba(47,107,255,.45);transition:transform .2s}
.consult-fab:hover{transform:translateY(-3px)}
.consult-panel{position:fixed;right:22px;bottom:80px;z-index:60;width:280px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 18px 50px rgba(20,40,90,.22);overflow:hidden}
.consult-panel[hidden]{display:none}
.cp-head{background:var(--grad);color:#fff;padding:14px 18px;font-weight:700;display:flex;justify-content:space-between;align-items:center}
.cp-close{color:#fff;font-size:20px;line-height:1;text-decoration:none}
.cp-body{padding:10px}
.cp-row{display:flex;flex-direction:column;padding:12px 14px;border-radius:10px;transition:background .2s}
.cp-row:hover{background:var(--bg-alt)}
.cp-row span{font-size:13px;color:var(--muted)}
.cp-row strong{font-size:15px;color:var(--ink)}

/* Reveal */
html.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
html.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html.js .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .tab-panel{animation:none}
}

/* ---------- Responsive (H5) ---------- */
@media (max-width:860px){
  .main-nav{position:fixed;top:var(--header-h);left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:#fff;border-bottom:1px solid var(--line);padding:10px 16px 18px;box-shadow:0 12px 30px rgba(20,40,90,.12);transform:translateY(-12px);opacity:0;pointer-events:none;transition:.25s}
  .main-nav.open{transform:none;opacity:1;pointer-events:auto}
  .main-nav a{padding:13px 12px}
  .main-nav .nav-cta{margin:8px 0 0;text-align:center}
  .menu-toggle{display:flex}
  .lang-hint{display:none}
  .stats{grid-template-columns:repeat(2,1fr)}
  .culture-strip{grid-template-columns:1fr}
  .tab-panel.active{grid-template-columns:1fr}
  .tp-visual{min-height:160px}
  .partner-grid{grid-template-columns:1fr;gap:24px}
  .contact-grid{grid-template-columns:1fr}
  .section{padding:64px 0}
  .hero-biz-row{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:520px){
  .stats{grid-template-columns:1fr}
  .hero-biz-row{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .consult-panel{width:calc(100vw - 44px)}
}