*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:#14202b;background:#f7f9fb;line-height:1.7}a{text-decoration:none;color:inherit}.wrap{width:min(1180px,calc(100% - 40px));margin:auto}.header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid #e4e9ee}.nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:25px}.brand{display:flex;align-items:center;gap:12px;white-space:nowrap}.brand strong{display:block;font-size:18px}.brand small{display:block;font-size:10px;letter-spacing:.16em;color:#778493}.logo{width:40px;height:40px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(145deg,#173a61,#275f91);color:#fff;font-weight:800;font-family:Georgia,serif}.nav nav{display:flex;align-items:center;gap:22px;font-size:14px;color:#4b5864}.nav nav a:hover,.nav nav a.active{color:#173a61}.nav-btn{background:#173a61;color:#fff!important;padding:10px 16px;border-radius:999px}.menu{display:none;border:0;background:#173a61;color:#fff;border-radius:9px;padding:8px 11px}.hero{background:radial-gradient(circle at 85% 15%,rgba(198,153,72,.13),transparent 28%),linear-gradient(180deg,#fff,#f4f7fa);border-bottom:1px solid #e4e9ee}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:64px;align-items:center;padding:92px 0 86px}.eyebrow{font-size:12px;font-weight:800;letter-spacing:.15em;color:#1f5a8a}.eyebrow:before{content:"";display:inline-block;width:24px;height:2px;background:#c69a48;vertical-align:middle;margin-right:10px}h1{font-size:56px;line-height:1.12;margin:16px 0 22px;letter-spacing:-.03em}h1 span{color:#1c5687}.hero-copy>p{font-size:18px;color:#586675;max-width:720px}.actions{display:flex;gap:12px;margin:30px 0 22px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 20px;border-radius:12px;font-weight:700;font-size:14px}.primary{background:#173a61;color:#fff}.secondary{background:#fff;border:1px solid #dce3e9;color:#23313e}.hero-note{display:flex;gap:20px;flex-wrap:wrap;color:#6b7783;font-size:12px}.hero-card{background:#102b48;color:#fff;border-radius:28px;padding:30px;box-shadow:0 24px 60px rgba(16,43,72,.17)}.card-head span{display:block;color:#d7b676;font-size:12px;letter-spacing:.12em;margin-bottom:6px}.card-head b{font-size:22px}.step{display:flex;gap:14px;padding:17px 0;border-top:1px solid rgba(255,255,255,.11)}.step:first-of-type{margin-top:20px}.step i{font-style:normal;width:31px;height:31px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.1);font-size:11px}.step b{display:block}.step p{margin:2px 0 0;color:#bdd0df;font-size:13px}.strip{background:#fff;border-bottom:1px solid #e4e9ee}.strip-grid{display:grid;grid-template-columns:repeat(4,1fr)}.strip-grid div{padding:22px 20px;border-right:1px solid #e4e9ee}.strip-grid div:first-child{border-left:1px solid #e4e9ee}.strip-grid b{display:block;color:#173a61;font-size:16px}.strip-grid span{color:#75818c;font-size:12px}.section{padding:82px 0}.light{background:#fff}.section-title{display:flex;align-items:end;justify-content:space-between;gap:50px;margin-bottom:34px}.section-title h2,.two h2,.contact h2,.content h2{font-size:34px;line-height:1.3;margin:9px 0 0}.section-title>p{max-width:540px;color:#6b7783;margin:0}.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.service-card{background:#fff;border:1px solid #dfe6ec;border-radius:20px;padding:26px;box-shadow:0 10px 30px rgba(16,43,72,.035)}.service-card em{font-style:normal;color:#c18d35;font-weight:800;font-size:12px}.service-card h3{font-size:20px;margin:10px 0 8px}.service-card p{color:#697684;font-size:14px;min-height:72px}.service-card a{color:#1c5687;font-weight:700;font-size:13px}.two{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}.muted{color:#687583}.checks{list-style:none;padding:0;margin-top:20px}.checks li{padding:9px 0 9px 30px;position:relative}.checks li:before{content:"✓";position:absolute;left:0;color:#1f7358;font-weight:900}.dark-box{background:#102b48;color:#fff;border-radius:24px;padding:34px}.dark-box>span{font-size:12px;letter-spacing:.12em;color:#d7b676}.dark-box h3{font-size:27px;line-height:1.35;margin:9px 0 12px}.dark-box p{color:#c4d2df}.whitebtn{background:#fff;color:#173a61;margin-top:9px}.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.case{background:#fff;border:1px solid #dde4ea;border-radius:20px;padding:26px}.case>span{font-size:11px;letter-spacing:.1em;color:#1c5687}.case h3{font-size:20px;line-height:1.45}.case p{color:#63707d;font-size:14px}.case-note{margin-top:16px;color:#8a949d;font-size:12px}.cooperate{background:#eef3f7}.partner-points{display:grid;gap:12px}.partner-points div{background:#fff;border-radius:14px;padding:18px 20px}.partner-points b,.partner-points span{display:block}.partner-points span{font-size:13px;color:#74808b}.contact{padding-bottom:90px}.contact-box{background:linear-gradient(135deg,#102b48,#1d4f7c);color:#fff;border-radius:28px;padding:46px;display:grid;grid-template-columns:1.2fr .8fr;gap:44px;align-items:center}.contact-box>div>p{color:#c6d5e2}.light-eyebrow{color:#e4c489}.contact-placeholder{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);border-radius:18px;padding:24px}.contact-placeholder b{font-size:18px}.contact-placeholder p{font-size:13px;color:#c5d4e0}.contact-placeholder span{display:block;padding:7px 0;border-top:1px solid rgba(255,255,255,.11);font-size:13px}footer{background:#0b2239;color:#b8c7d4;padding:44px 0}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.4fr;gap:44px}.footer-brand strong{color:#fff}.footer-grid>div>b{color:#fff}.footer-grid span{display:block;font-size:13px;margin-top:5px}.footer-grid p{font-size:12px;color:#9eb0bf}
.page-hero{background:linear-gradient(180deg,#fff,#f3f6f9);border-bottom:1px solid #e4e9ee}.page-hero .wrap{padding:70px 0 58px}.crumb{font-size:12px;color:#79848e}.page-hero h1{font-size:46px;margin:15px 0 15px}.page-hero p{font-size:18px;color:#5d6a77;max-width:820px}.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:36px;align-items:start}.content-card{background:#fff;border:1px solid #dfe6ec;border-radius:20px;padding:30px;margin-bottom:20px}.content-card h2{font-size:28px;margin:0 0 15px}.content-card h3{font-size:18px;margin:24px 0 8px}.content-card p{color:#62707d}.sidebar{position:sticky;top:100px;background:#102b48;color:#fff;border-radius:20px;padding:26px}.sidebar h3{margin:0 0 10px;font-size:21px}.sidebar p{color:#c7d5e1;font-size:14px}.sidebar .btn{width:100%;margin-top:8px}.table-wrap{overflow:auto;border:1px solid #dde4ea;border-radius:14px}table{width:100%;border-collapse:collapse;background:#fff}th,td{padding:14px 16px;text-align:left;border-bottom:1px solid #e5eaef;vertical-align:top;font-size:14px}th{background:#f3f6f9;color:#394651}tr:last-child td{border-bottom:0}.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.mini{background:#f6f8fa;border:1px solid #e1e7ec;border-radius:16px;padding:20px}.mini h3{margin:0 0 7px}.mini p{font-size:13px;margin:0;color:#6a7783}.quote{border-left:4px solid #c69a48;background:#f7f9fb;padding:18px 20px;color:#4f5d69;border-radius:0 12px 12px 0}.notice{font-size:12px;color:#818c96;margin-top:16px}
@media(max-width:1000px){.nav nav{gap:14px;font-size:13px}.hero-grid,.two,.contact-box,.layout{grid-template-columns:1fr}.sidebar{position:static}.service-grid,.case-grid{grid-template-columns:repeat(2,1fr)}.strip-grid{grid-template-columns:repeat(2,1fr)}.mini-grid{grid-template-columns:1fr}.page-hero h1{font-size:40px}}
@media(max-width:760px){.menu{display:block}.nav nav{display:none;position:absolute;left:0;right:0;top:66px;background:#fff;border-bottom:1px solid #e4e9ee;padding:18px 20px;flex-direction:column;align-items:stretch}.nav nav.open{display:flex}.nav{height:66px}.nav nav a{padding:6px}.nav-btn{text-align:center}.brand small{display:none}.wrap{width:min(100% - 28px,1180px)}.hero-grid{padding:50px 0}.hero-card{padding:24px}h1{font-size:36px}.hero-copy>p{font-size:16px}.actions{flex-direction:column}.btn{width:100%}.hero-note{gap:8px 14px}.service-grid,.case-grid,.strip-grid{grid-template-columns:1fr}.strip-grid div{border-left:1px solid #e4e9ee}.section{padding:58px 0}.section-title{display:block}.section-title>p{margin-top:12px}.section-title h2,.two h2,.contact h2,.content h2{font-size:28px}.contact-box{padding:28px}.footer-grid{grid-template-columns:1fr;gap:24px}.page-hero .wrap{padding:48px 0 40px}.page-hero h1{font-size:33px}.page-hero p{font-size:16px}}


/* ===== v3：B2B 咨询风格精修 ===== */
:root{
  --lihuo-navy:#102f4c;
  --lihuo-blue:#1d5b8f;
  --lihuo-gold:#b88a3e;
  --lihuo-ink:#17232f;
}
body{color:var(--lihuo-ink)}
.header{
  background:rgba(255,255,255,.97);
  border-bottom:1px solid #e6ebef;
  box-shadow:0 1px 0 rgba(16,47,76,.02);
}
.nav{height:74px}
.logo{
  border-radius:9px;
  background:linear-gradient(145deg,#113652,#1d5b8f);
  box-shadow:0 8px 20px rgba(16,47,76,.12);
}
.nav-btn{
  border-radius:8px;
  padding:10px 18px;
  background:var(--lihuo-navy);
}

/* 首页第一屏：降低“营销落地页感”，改成更稳的企业咨询调性 */
.hero{
  position:relative;
  overflow:hidden;
  background:
    linear-gradient(90deg,rgba(16,47,76,.022) 1px,transparent 1px),
    linear-gradient(rgba(16,47,76,.022) 1px,transparent 1px),
    radial-gradient(circle at 88% 8%,rgba(184,138,62,.10),transparent 25%),
    linear-gradient(180deg,#fff 0%,#f7f9fb 100%);
  background-size:72px 72px,72px 72px,auto,auto;
}
.hero-grid{
  grid-template-columns:minmax(0,1.08fr) minmax(420px,.92fr);
  gap:72px;
  padding:84px 0 80px;
}
.hero-copy{max-width:690px}
.hero-copy .eyebrow{
  margin-bottom:20px;
  font-size:11px;
  letter-spacing:.18em;
  color:#46657e;
}
.hero-copy .eyebrow:before{
  width:34px;
  height:1px;
  background:var(--lihuo-gold);
}
.hero h1{
  margin:0 0 24px;
  font-size:clamp(42px,3.15vw,52px);
  line-height:1.16;
  letter-spacing:-.035em;
  font-weight:750;
  color:var(--lihuo-ink);
}
.hero h1>span:first-child{color:var(--lihuo-ink)}
.hero h1>span:last-child,
.hero h1>span:last-child span{color:var(--lihuo-blue)}
.hero-copy>p{
  max-width:650px;
  margin:0;
  font-size:17px;
  line-height:1.9;
  color:#586776;
}
.actions{margin:30px 0 24px}
.hero .btn{
  border-radius:9px;
  padding:13px 22px;
}
.hero .primary{
  background:var(--lihuo-navy);
  box-shadow:0 10px 26px rgba(16,47,76,.13);
}
.hero-note{
  padding-top:2px;
  gap:12px 22px;
  color:#6d7b87;
  font-size:12px;
}
.hero-card{
  position:relative;
  border-radius:20px;
  padding:32px 34px 26px;
  background:linear-gradient(160deg,#123653,#102d48);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 28px 60px rgba(16,47,76,.16);
}
.hero-card:before{
  content:"";
  position:absolute;
  left:34px;right:34px;top:0;
  height:2px;
  background:linear-gradient(90deg,var(--lihuo-gold),rgba(184,138,62,0));
}
.card-head span{
  color:#d4b273;
  font-size:11px;
  letter-spacing:.15em;
}
.card-head b{
  display:block;
  margin-top:5px;
  font-size:21px;
  letter-spacing:.01em;
}
.step{padding:18px 0}
.step i{
  flex:0 0 30px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.06);
}
.step b{font-size:15px}
.step p{font-size:12.5px;line-height:1.65}

/* 全站只做轻量统一，不推翻现有设计 */
.section{padding:78px 0}
.section-title h2,.two h2,.contact h2,.content h2{
  letter-spacing:-.015em;
}
.service-card,.case,.content-card,.mini{border-radius:16px}
.service-card{
  box-shadow:0 8px 24px rgba(16,47,76,.03);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.service-card:hover{
  transform:translateY(-2px);
  border-color:#ccd8e1;
  box-shadow:0 16px 34px rgba(16,47,76,.07);
}
.dark-box,.contact-box{border-radius:20px}
.page-hero{
  background:linear-gradient(180deg,#fff,#f5f7f9);
}
.page-hero .wrap{padding:66px 0 54px}
.page-hero h1{
  max-width:900px;
  font-size:43px;
  line-height:1.22;
  letter-spacing:-.025em;
}
.page-hero p{
  line-height:1.85;
  color:#61707d;
}

@media(max-width:1000px){
  .hero-grid{grid-template-columns:1fr;gap:34px;padding:64px 0 60px}
  .hero-copy,.hero-card{max-width:760px}
}
@media(max-width:760px){
  .hero{background-size:48px 48px,48px 48px,auto,auto}
  .hero-grid{padding:46px 0 50px}
  .hero h1{font-size:34px;line-height:1.18;margin-bottom:18px}
  .hero-copy>p{font-size:15.5px;line-height:1.8}
  .hero-card{padding:26px 22px 20px;border-radius:16px}
  .hero-note{display:grid;gap:6px}
  .page-hero h1{font-size:32px}
}