:root { --ink:#17324d; --muted:#667789; --paper:#f4f7fb; --white:#fff; --line:#d7e0ea; --blue:#1769e0; --orange:#ff9f1c; --navy:#0b2340; }
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--ink);background:var(--paper)} a{color:inherit;text-decoration:none}
.site-header{position:fixed;top:16px;left:clamp(14px,4vw,44px);right:clamp(14px,4vw,44px);z-index:10;display:flex;align-items:center;justify-content:space-between;gap:22px;padding:12px 18px;color:#fff;background:rgba(11,35,64,.24);border:1px solid rgba(255,255,255,.22);border-radius:999px;backdrop-filter:blur(12px);transition:180ms ease}
.site-header.is-scrolled{color:var(--ink);background:rgba(255,255,255,.94);box-shadow:0 14px 34px rgba(23,50,77,.13)}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:900;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:38px;height:38px;color:#fff;background:linear-gradient(135deg,var(--blue),#19a7ce);border-radius:50%;font-size:13px}.nav-links{display:flex;gap:24px;font-size:14px;font-weight:700}
.header-action,.button{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 18px;border-radius:999px;border:0;font-weight:800;cursor:pointer}.header-action,.button.primary{color:#10243a;background:var(--orange)}.button.secondary{color:#fff;border:1px solid rgba(255,255,255,.55)}
.hero{position:relative;min-height:90vh;display:grid;align-items:center;overflow:hidden;color:#fff;background:var(--navy)}.hero-image{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,26,48,.9),rgba(7,26,48,.56) 42%,rgba(7,26,48,.05))}
.hero-content{position:relative;width:min(720px,calc(100% - 36px));margin-left:clamp(18px,7vw,88px);padding-top:74px}.eyebrow,.section-label{margin:0 0 14px;color:var(--orange);font-size:13px;font-weight:900;letter-spacing:.06em}
h1,h2,h3,p{margin-top:0}h1{margin-bottom:22px;font-size:clamp(42px,7vw,84px);line-height:1;letter-spacing:0}h2{margin-bottom:18px;font-size:clamp(28px,4vw,50px);line-height:1.08;letter-spacing:0}h3{margin-bottom:12px;font-size:21px}p{color:var(--muted);line-height:1.75}.hero-copy{max-width:650px;color:rgba(255,255,255,.84);font-size:20px}.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;width:min(1120px,calc(100% - 36px));margin:28px auto 0}.metrics div{padding:28px;background:#fff;border-radius:8px;border:1px solid var(--line);box-shadow:0 12px 30px rgba(23,50,77,.08)}.metrics strong{display:block;margin-bottom:8px;color:var(--blue);font-size:28px}.metrics span{font-size:14px;color:var(--muted)}
.section,.platform,.contact{padding:clamp(72px,9vw,116px) clamp(18px,6vw,76px)}.intro{display:grid;grid-template-columns:1fr 1.7fr;gap:44px;background:#fff}.intro>.section-label{align-self:start;padding:12px 18px;color:#fff;background:var(--blue);border-radius:999px;width:max-content}.intro p,.platform-copy p,.contact p{max-width:780px;font-size:18px}
.section-heading{max-width:780px;margin-bottom:34px}.service-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.service-card{position:relative;min-height:210px;padding:30px 30px 30px 92px;background:#fff;border:1px solid var(--line);border-radius:8px}.icon{position:absolute;left:26px;top:28px;display:grid;place-items:center;width:44px;height:44px;color:#fff;background:var(--blue);border-radius:50%;font-weight:900}
.platform{display:grid;grid-template-columns:.92fr 1.08fr;gap:48px;background:#eaf2fb}.timeline{display:grid;gap:16px}.timeline div{padding:26px;background:#fff;border-left:6px solid var(--orange);border-radius:0 8px 8px 0}.timeline span{display:block;margin-bottom:8px;color:var(--navy);font-weight:900}
.work-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.work-list article{min-height:224px;padding:28px;color:#fff;background:linear-gradient(145deg,var(--navy),#16466d);border-radius:8px}.work-list p{color:rgba(255,255,255,.76)}
.contact{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,.78fr);gap:48px;background:#fff}.contact-info{margin-top:28px;padding:22px;background:#f4f7fb;border-radius:8px}.contact-info p{margin-bottom:10px;font-size:16px}.contact-info strong{color:var(--ink)}
.contact-form{display:grid;gap:16px;padding:28px;background:#f8fafc;border:1px solid var(--line);border-radius:8px}label{display:grid;gap:8px;font-size:14px;font-weight:800}input,textarea{width:100%;border:1px solid var(--line);border-radius:8px;padding:14px 15px;font:inherit;background:#fff}textarea{resize:vertical}.form-note{min-height:24px;margin:0;color:var(--blue);font-size:14px;font-weight:800}
.site-footer{padding:28px clamp(18px,6vw,76px);color:rgba(255,255,255,.72);background:var(--navy)}.footer-links,.footer-bottom{display:flex;align-items:center;flex-wrap:wrap;gap:16px}.footer-links{margin-bottom:18px;padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.14);font-size:14px}.footer-links span{color:#fff;font-weight:800}.footer-bottom{justify-content:space-between}
@media(max-width:900px){.site-header{top:0;left:0;right:0;border-radius:0}.nav-links{display:none}.metrics,.service-grid,.intro,.platform,.work-list,.contact{grid-template-columns:1fr}.hero{min-height:86vh}.service-card,.work-list article{min-height:auto}}@media(max-width:560px){.site-header{padding:12px 14px}.brand span:last-child{max-width:126px;white-space:normal;line-height:1.05}.header-action{padding:0 12px;font-size:13px}.hero-content{width:calc(100% - 32px);margin-left:16px}.hero-copy{font-size:17px}.section,.platform,.contact{padding-left:16px;padding-right:16px}.metrics{grid-template-columns:1fr}.footer-bottom{flex-direction:column;align-items:flex-start}}

.route-board {
  display: grid;
  grid-template-columns: .82fr 1.18fr;
  gap: 24px;
  padding: clamp(42px, 6vw, 72px) clamp(18px, 6vw, 76px);
  background: #fff;
}
.route-copy {
  padding: 30px;
  color: #fff;
  background: var(--navy);
  border-radius: 8px;
}
.route-copy span {
  color: var(--orange);
  font-weight: 900;
}
.route-copy h2 {
  margin-bottom: 0;
}
.route-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  align-items: stretch;
}
.route-steps article {
  position: relative;
  display: grid;
  align-content: end;
  min-height: 210px;
  padding: 24px;
  color: var(--navy);
  background: #f4f7fb;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.route-steps article:before {
  content: "";
  position: absolute;
  top: 24px;
  left: 24px;
  width: 54px;
  height: 10px;
  background: var(--orange);
  border-radius: 999px;
}
.route-steps b {
  margin-bottom: 8px;
  font-size: 24px;
}
.route-steps em {
  color: var(--muted);
  font-style: normal;
}
@media(max-width:900px){.route-board,.route-steps{grid-template-columns:1fr}}