:root {
  --ink: #10233f;
  --muted: #64758a;
  --line: #d9e4ef;
  --paper: #f4f8fc;
  --blue: #1769e8;
  --blue-dark: #082b58;
  --cyan: #16a7c8;
  --gold: #d6a42d;
  --white: #fff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  letter-spacing: 0;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }

.detail-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: 74px;
  border-bottom: 1px solid rgba(215, 227, 239, .92);
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(14px);
}
.detail-nav { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.detail-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; min-width: 0; }
.detail-brand img { width: 44px; height: 44px; object-fit: contain; }
.detail-brand-copy { min-width: 0; }
.detail-brand-copy strong { display: block; color: #0964bd; font-size: 15px; white-space: nowrap; }
.detail-brand-copy span { display: block; margin-top: 3px; color: #2e6ca7; font-size: 8px; white-space: nowrap; }
.detail-menu { display: flex; align-items: center; gap: 24px; font-size: 13px; font-weight: 750; }
.detail-menu a { text-decoration: none; white-space: nowrap; }
.detail-menu a:hover { color: var(--blue); }
.detail-menu .consult { padding: 12px 16px; border-radius: 6px; color: #fff; background: var(--blue); box-shadow: 0 8px 20px rgba(23, 105, 232, .2); }
.detail-menu .consult:hover { color: #fff; background: #0f58c7; }

.service-hero {
  position: relative;
  min-height: 510px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  color: #fff;
  background-image: linear-gradient(90deg, rgba(4, 26, 54, .96) 0%, rgba(8, 48, 96, .88) 48%, rgba(10, 60, 118, .36) 100%), var(--hero-image);
  background-size: cover;
  background-position: center;
}
.service-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(90deg, #000, transparent 76%);
}
.hero-content { position: relative; z-index: 1; max-width: 820px; padding: 68px 0 76px; }
.breadcrumb { display: flex; align-items: center; gap: 9px; margin-bottom: 28px; color: #bcd8f5; font-size: 12px; font-weight: 700; }
.breadcrumb a { text-decoration: none; }
.breadcrumb i { width: 28px; height: 2px; display: inline-block; background: var(--gold); }
.service-hero h1 { max-width: 800px; margin: 0; font-size: clamp(38px, 5vw, 62px); line-height: 1.16; }
.hero-summary { max-width: 740px; margin: 25px 0 0; color: #e1edf9; font-size: 17px; line-height: 1.9; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.hero-meta span { padding: 8px 11px; border: 1px solid rgba(255, 255, 255, .24); border-radius: 4px; background: rgba(255, 255, 255, .08); font-size: 12px; font-weight: 750; }

.article-wrap { padding: 72px 0 0; }
.article-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 58px; align-items: start; }
.article-nav { position: sticky; top: 104px; padding-top: 6px; }
.article-nav strong { display: block; margin-bottom: 16px; color: var(--blue); font-size: 12px; }
.article-nav a { display: block; padding: 10px 0; border-bottom: 1px solid var(--line); color: #4f637b; font-size: 13px; line-height: 1.5; text-decoration: none; }
.article-nav a:hover { color: var(--blue); }
.article { min-width: 0; }
.lead-section { padding-bottom: 52px; }
.section-label { display: inline-flex; align-items: center; gap: 10px; color: var(--blue); font-size: 12px; font-weight: 800; }
.section-label::before { content: ""; width: 28px; height: 2px; background: var(--gold); }
.article h2 { margin: 14px 0 22px; font-size: 34px; line-height: 1.3; }
.article h3 { margin: 0 0 12px; font-size: 20px; line-height: 1.45; }
.article p { margin: 0 0 18px; color: #52657c; font-size: 16px; line-height: 1.95; }
.article p:last-child { margin-bottom: 0; }
.company-note { padding: 26px 0 26px 24px; border-left: 3px solid var(--blue); background: linear-gradient(90deg, #eaf3ff, rgba(234, 243, 255, 0)); }

.service-modules { padding: 64px 0; border-top: 1px solid var(--line); }
.module-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 28px; }
.module-card { min-height: 230px; padding: 25px; border: 1px solid var(--line); border-radius: 7px; background: #fff; box-shadow: 0 14px 34px rgba(23, 57, 96, .06); }
.module-card.wide { grid-column: 1 / -1; min-height: auto; }
.module-no { width: 38px; height: 38px; display: grid; place-items: center; margin-bottom: 22px; border-radius: 5px; color: #fff; background: var(--blue-dark); font-size: 12px; font-weight: 850; }
.module-card p { font-size: 15px; line-height: 1.85; }

.proof-section { padding: 64px 0; border-top: 1px solid var(--line); }
.reason-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 26px; }
.reason { display: flex; gap: 15px; padding: 20px; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
.reason b { flex: 0 0 32px; height: 32px; display: grid; place-items: center; border-radius: 50%; color: var(--blue); background: #e8f2ff; font-size: 12px; }
.reason p { margin: 2px 0 0; font-size: 14px; line-height: 1.75; }
.result-note { margin-top: 28px; padding: 26px; border-radius: 7px; color: #e8f3ff; background: linear-gradient(135deg, #0a2c59, #145da8); }
.result-note p { color: inherit; }

.contact-band { margin-top: 68px; color: #fff; background: #0a2b56; }
.contact-inner { min-height: 230px; display: flex; align-items: center; justify-content: space-between; gap: 36px; }
.contact-band h2 { margin: 0; font-size: 30px; }
.contact-band p { margin: 12px 0 0; color: #c9dff5; line-height: 1.75; }
.contact-actions { display: flex; flex: 0 0 auto; gap: 10px; }
.contact-actions a { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; padding: 0 18px; border: 1px solid rgba(255, 255, 255, .32); border-radius: 6px; color: #fff; text-decoration: none; font-size: 13px; font-weight: 800; }
.contact-actions a:first-child { border-color: var(--blue); background: var(--blue); }

.detail-footer { padding: 27px 0; color: #7a899b; background: #fff; font-size: 12px; }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; }
.footer-inner a { text-decoration: none; }

@media (max-width: 900px) {
  .detail-menu a:not(.consult) { display: none; }
  .article-layout { grid-template-columns: 1fr; }
  .article-nav { position: static; display: flex; flex-wrap: wrap; gap: 8px; padding: 0 0 10px; }
  .article-nav strong { width: 100%; margin-bottom: 4px; }
  .article-nav a { padding: 8px 10px; border: 1px solid var(--line); border-radius: 4px; background: #fff; }
}

@media (max-width: 680px) {
  .container { width: min(100% - 28px, 1180px); }
  .detail-header { height: 66px; }
  .detail-brand img { width: 39px; height: 39px; }
  .detail-brand-copy strong { max-width: 185px; overflow: hidden; text-overflow: ellipsis; font-size: 12px; }
  .detail-brand-copy span { display: none; }
  .detail-menu { gap: 8px; }
  .detail-menu .consult { padding: 10px 11px; font-size: 12px; }
  .service-hero { min-height: 500px; background-position: 62% center; }
  .service-hero h1 { font-size: 37px; }
  .hero-summary { font-size: 15px; line-height: 1.8; }
  .article-wrap { padding-top: 48px; }
  .article-layout { gap: 30px; }
  .article h2 { font-size: 27px; }
  .article p { font-size: 15px; }
  .module-grid, .reason-list { grid-template-columns: 1fr; }
  .module-card.wide { grid-column: auto; }
  .contact-inner { padding: 45px 0; align-items: flex-start; flex-direction: column; }
  .contact-actions { width: 100%; }
  .contact-actions a { flex: 1; padding: 0 10px; }
  .footer-inner { flex-direction: column; }
}