:root{
  --brand:#0b3d91;
  --brand-2:#1554c4;
  --accent:#ff3b47;
  --accent-2:#ff7a45;
  --ink:#16203a;
  --muted:#5d6b85;
  --bg:#ffffff;
  --bg-soft:#f4f7fd;
  --line:#e7ecf6;
  --grad:linear-gradient(120deg,#0b3d91,#1554c4);
  --grad-warm:linear-gradient(120deg,#ff3b47,#ff7a45);
  --shadow-sm:0 4px 14px rgba(16,32,58,.06);
  --shadow-md:0 14px 34px rgba(16,32,58,.10);
  --shadow-lg:0 26px 60px rgba(11,61,145,.20);
  --maxw:1160px;
  --radius:18px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}
h1,h2,h3,h4{line-height:1.25;color:var(--ink);font-weight:800}
.muted{color:var(--muted)}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.82);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid transparent;transition:box-shadow .3s,border-color .3s}
.site-header.scrolled{box-shadow:var(--shadow-sm);border-color:var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--brand);letter-spacing:.3px}
.brand .logo{width:36px;height:36px;border-radius:10px;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;font-weight:900;box-shadow:0 6px 16px rgba(11,61,145,.35)}
.brand small{color:var(--muted);font-weight:600;font-size:12px;margin-left:4px}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{font-size:15px;color:var(--muted);font-weight:600;position:relative;transition:color .2s}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--grad);transform:scaleX(0);transition:transform .25s;border-radius:2px;transform-origin:left}
.nav-links a:hover,.nav-links a.active{color:var(--brand)}
.nav-links a.active::after,.nav-links a:hover::after{transform:scaleX(1)}
.btn{display:inline-block;background:var(--grad-warm);color:#fff;padding:11px 24px;border-radius:12px;font-weight:700;font-size:15px;transition:transform .15s,box-shadow .25s;box-shadow:0 10px 24px rgba(255,59,71,.30)}
.btn:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,59,71,.40)}
.btn-ghost{background:#fff;color:var(--brand);border:1.5px solid #c9d6ef;padding:10px 22px;border-radius:12px;font-weight:700;transition:border-color .2s,background .2s}
.btn-ghost:hover{border-color:var(--brand);background:#f0f5ff}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.hamburger span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:60px 0 70px;background:linear-gradient(180deg,#fff 0%,#f4f7fd 100%)}
.hero-bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.hero-bg::before,.hero-bg::after{content:"";position:absolute;border-radius:50%;filter:blur(70px);opacity:.55}
.hero-bg::before{width:520px;height:520px;background:radial-gradient(circle,#2f6bff,transparent 70%);top:-160px;right:-120px}
.hero-bg::after{width:460px;height:460px;background:radial-gradient(circle,#ff5b53,transparent 70%);bottom:-200px;left:-140px}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center}
.hero-pill{display:inline-block;background:#fff;border:1px solid var(--line);color:var(--brand);font-weight:700;font-size:13.5px;padding:7px 15px;border-radius:999px;box-shadow:var(--shadow-sm);margin-bottom:20px}
.hero h1{font-size:clamp(32px,4.8vw,54px);letter-spacing:-.5px;line-height:1.15}
.hero h1 .hl{background:var(--grad-warm);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:18.5px;color:var(--muted);max-width:560px;margin:20px 0 28px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.stats{display:flex;gap:30px;flex-wrap:wrap;margin-top:40px;padding-top:28px;border-top:1px dashed var(--line)}
.stat strong{display:block;font-size:30px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:900}
.stat span{color:var(--muted);font-size:13.5px}

/* Hero visual */
.hero-visual{position:relative;display:flex;justify-content:center;align-items:center;min-height:360px}
.live-card{position:relative;z-index:2;width:100%;max-width:380px;background:#0e1830;border-radius:22px;padding:16px;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.08)}
.live-tag{display:inline-flex;align-items:center;gap:7px;background:var(--accent);color:#fff;font-weight:800;font-size:12px;letter-spacing:1px;padding:5px 11px;border-radius:8px}
.live-tag i{width:8px;height:8px;border-radius:50%;background:#fff;animation:pulse 1.4s infinite}
@keyframes pulse{0%{opacity:1}50%{opacity:.3}100%{opacity:1}}
.live-screen{margin-top:12px;height:188px;border-radius:14px;background:radial-gradient(circle at 30% 30%,#1b2c52,#0a1228);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.live-screen::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(47,107,255,.25),transparent 60%)}
.live-play{width:58px;height:58px;border-radius:50%;background:rgba(255,255,255,.92);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:22px;padding-left:4px;box-shadow:0 10px 26px rgba(0,0,0,.4);z-index:1}
.live-foot{margin-top:13px;display:flex;flex-direction:column;gap:2px}
.live-foot b{color:#fff;font-size:15px}
.live-foot span{color:#9fb0cc;font-size:12.5px}
.float-card{position:absolute;z-index:3;background:#fff;border-radius:14px;padding:10px 16px;font-weight:700;font-size:14px;color:var(--brand);box-shadow:var(--shadow-md);animation:float 4s ease-in-out infinite}
.float-card.fc1{top:6%;left:-6%;color:#1554c4}
.float-card.fc2{bottom:8%;right:-4%;color:#ff5b53;animation-delay:1.5s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

/* ---------- Sections ---------- */
section{padding:72px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 46px}
.section-head .tag{display:inline-block;background:var(--grad);color:#fff;font-weight:700;letter-spacing:1px;font-size:12.5px;padding:6px 16px;border-radius:999px;margin-bottom:14px;box-shadow:0 8px 20px rgba(11,61,145,.25)}
.section-head h2{font-size:clamp(26px,3.4vw,40px);margin-bottom:12px}
.section-head p{color:var(--muted);font-size:17px}
.bg-soft{background:var(--bg-soft)}

/* Cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:transform .22s,box-shadow .25s,border-color .25s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:#cfdcf6}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--muted);font-size:15px}
.card .ico{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,rgba(11,61,145,.10),rgba(21,84,196,.16));color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:18px;box-shadow:inset 0 0 0 1px rgba(11,61,145,.06)}
.card a.more{display:inline-block;margin-top:14px;color:var(--accent);font-weight:700;font-size:14px;transition:gap .2s}
.card a.more:hover{text-decoration:underline}

/* Split + promo */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.promo{background:var(--grad);color:#fff;border-radius:22px;padding:36px;box-shadow:var(--shadow-md);position:relative;overflow:hidden}
.promo::after{content:"";position:absolute;width:200px;height:200px;border-radius:50%;background:rgba(255,255,255,.10);top:-60px;right:-60px}
.promo h3{color:#fff;font-size:21px}
.promo ul{margin-top:16px;padding-left:20px;position:relative;z-index:1}
.promo li{margin:9px 0;font-size:15px}
.feature-list{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(255px,1fr));gap:14px;margin-top:18px}
.feature-list li{background:#fff;border:1px solid var(--line);border-radius:12px;padding:15px 18px;font-size:15px;transition:transform .2s,box-shadow .2s}
.feature-list li:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm)}
.feature-list li b{color:var(--brand);display:block;margin-bottom:3px}

/* FAQ */
.faq-item{border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;background:#fff;transition:box-shadow .2s}
.faq-item:hover{box-shadow:var(--shadow-sm)}
.faq-item summary{padding:18px 22px;font-weight:700;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:14px;align-items:center}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--accent);font-size:24px;font-weight:800;transition:transform .2s}
.faq-item[open] summary::after{content:"−"}
.faq-item .ans{padding:0 22px 20px;color:var(--muted);font-size:15px}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:38px}
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;margin-bottom:6px;font-size:14px}
.field input,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:11px;font-size:15px;font-family:inherit;transition:border-color .2s,box-shadow .2s}
.field input:focus,.field textarea:focus{outline:0;border-color:var(--brand);box-shadow:0 0 0 3px rgba(21,84,196,.15)}
.info-box{background:var(--bg-soft);border:1px solid var(--line);border-radius:18px;padding:30px}
.info-box h3{margin-bottom:18px;font-size:19px}
.info-box .row{display:flex;gap:12px;margin-bottom:16px;align-items:flex-start}
.info-box .row .k{color:var(--brand);font-weight:700;min-width:64px;font-size:14px}

/* Footer */
.site-footer{background:linear-gradient(180deg,#0b1c3f,#08152e);color:#cdd7ea;padding:54px 0 28px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px}
.site-footer h4{color:#fff;margin-bottom:14px;font-size:15px}
.site-footer a{color:#cdd7ea;font-size:14px;display:block;margin-bottom:9px;transition:color .2s,transform .2s}
.site-footer a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:18px;font-size:13px;color:#9fb0cc;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* Misc */
.badge{display:inline-block;background:rgba(21,84,196,.10);color:var(--brand);font-weight:700;font-size:13px;padding:5px 13px;border-radius:999px;margin:3px 6px 3px 0;border:1px solid rgba(21,84,196,.14)}
.article{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px;max-width:820px;margin:0 auto;box-shadow:var(--shadow-sm)}
.article h1{font-size:32px;margin-bottom:12px}
.article .meta{color:var(--muted);font-size:14px;margin-bottom:24px}
.article p{margin-bottom:16px}
.article h2{font-size:23px;margin:30px 0 12px}
.article ul{margin:0 0 16px 22px}
.callout{background:linear-gradient(135deg,#eef3ff,#fff);border-left:4px solid var(--accent);padding:16px 20px;border-radius:10px;margin:22px 0;font-size:15px}
.cta-band{background:var(--grad);color:#fff;text-align:center;padding:56px 20px;border-radius:24px;position:relative;overflow:hidden;box-shadow:var(--shadow-md)}
.cta-band::before{content:"";position:absolute;width:300px;height:300px;border-radius:50%;background:rgba(255,255,255,.08);top:-120px;left:-80px}
.cta-band::after{content:"";position:absolute;width:260px;height:260px;border-radius:50%;background:rgba(255,122,69,.18);bottom:-120px;right:-60px}
.cta-band h2{color:#fff;margin-bottom:10px;position:relative;z-index:1}
.cta-band p{margin-bottom:22px;opacity:.95;position:relative;z-index:1}
.cta-band .btn{background:#fff;color:var(--brand);position:relative;z-index:1}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media(max-width:920px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-visual{min-height:300px;margin-top:6px}
  .split,.contact-grid,.footer-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:880px){
  .nav-links{position:absolute;top:70px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;gap:0;padding:8px 22px 18px;display:none;box-shadow:var(--shadow-md)}
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 0;border-bottom:1px solid var(--line);width:100%}
  .nav-links a::after{display:none}
  .nav-links .btn{margin-top:12px;text-align:center}
  .hamburger{display:flex}
  section{padding:56px 0}
}
@media(max-width:560px){
  .footer-grid{grid-template-columns:1fr}
  .stats{gap:18px}
  .stat strong{font-size:25px}
  .float-card{display:none}
}

/* ===== 新增：评价 / 案例 / 地图 ===== */
.stars{color:#ffb020;letter-spacing:2px;font-size:16px;margin-bottom:8px}
.review .muted{font-size:13px;margin-top:6px}
.chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.map-card{display:grid;grid-template-columns:1.6fr 1fr;gap:0;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-md)}
.map-card iframe{width:100%;height:340px;border:0;display:block}
.map-cta{background:var(--bg-soft);padding:26px 28px;display:flex;flex-direction:column;justify-content:center}
.map-cta h3{margin-bottom:8px}
.map-cta p{color:var(--muted);margin-bottom:16px}
@media(max-width:760px){
  .map-card{grid-template-columns:1fr}
  .map-card iframe{height:260px}
}
.case-list .card{display:block}
.tag-local{display:inline-flex;align-items:center;gap:6px}

/* ===== 服务流程步骤 ===== */
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;gap:14px}
.steps li{position:relative;padding:14px 16px 14px 56px;background:#fff;border:1px solid var(--line);border-radius:14px;color:var(--ink)}
.steps li::before{counter-increment:s;content:counter(s);position:absolute;left:14px;top:50%;transform:translateY(-50%);width:28px;height:28px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px}
@media(max-width:560px){.steps li{padding-left:50px}}


/* ===== 方案对比表（GEO 对比块） ===== */
.cmp-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-sm);background:#fff}
.cmp{width:100%;border-collapse:collapse;font-size:14.5px;min-width:680px}
.cmp th,.cmp td{padding:14px 18px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;line-height:1.55}
.cmp thead th{background:var(--bg-soft);color:var(--brand);font-weight:800;white-space:nowrap;font-size:15px}
.cmp tbody tr:last-child td{border-bottom:0}
.cmp td:first-child{font-weight:700;white-space:nowrap;color:var(--ink)}
.cmp tbody tr:hover{background:#f6f9ff}
.cmp th:last-child,.cmp td:last-child{background:linear-gradient(135deg,rgba(255,59,71,.05),rgba(255,122,69,.07));font-weight:600}

/* ===== 品牌 Logo 图片 ===== */
.brand .logo-img{height:28px;width:auto;display:block}
.site-footer .logo-img{filter:brightness(0) invert(1)}