:root {
  --cyan: #00aeef;
  --navy: #0b3b6a;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #dce6f1;
  --surface: #f5f8fb;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: #f8fafc;
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

.detail-header {
  min-height: 76px;
  padding: 12px max(20px, calc((100vw - 1280px) / 2));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid #e7edf4;
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
}

.detail-brand { display: flex; align-items: center; gap: 10px; }
.detail-brand svg { width: 38px; fill: var(--cyan); transform: rotate(-8deg); }
.detail-brand span { display: flex; flex-direction: column; gap: 2px; }
.detail-brand strong { font-size: 18px; letter-spacing: .1em; }
.detail-brand small { color: #8ca0b4; font-size: 8px; font-weight: 900; letter-spacing: .18em; }
.detail-nav { display: flex; gap: 8px; }
.detail-nav a { padding: 10px 15px; border: 1px solid #dce6ef; border-radius: 999px; color: #586b80; font-size: 13px; font-weight: 850; }
.detail-nav a.primary { color: #fff; border-color: var(--cyan); background: var(--cyan); }

.detail-hero {
  padding: 64px max(22px, calc((100vw - 1120px) / 2)) 54px;
  color: #fff;
  background: radial-gradient(circle at 82% 18%, rgba(0,174,239,.32), transparent 28%), linear-gradient(135deg, #082f57, var(--navy));
}
.breadcrumb { margin: 0 0 26px; color: #8eb0cc; font-size: 12px; font-weight: 800; }
.detail-hero h1 { max-width: 900px; margin: 0; font-size: clamp(36px, 6vw, 68px); line-height: 1.15; letter-spacing: -.045em; }
.detail-hero .subtitle { margin: 16px 0 0; color: #a8c1d7; font-size: 17px; }
.detail-hero .summary { max-width: 850px; margin: 28px 0 0; color: #d4e1eb; font-size: 16px; line-height: 1.85; }

.detail-layout { max-width: 1180px; margin: 0 auto; padding: 36px 22px 90px; display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 28px; align-items: start; }
.detail-content, .detail-aside { background: #fff; border: 1px solid var(--line); border-radius: 28px; box-shadow: 0 18px 50px rgba(20,62,102,.08); }
.detail-content { padding: clamp(24px, 5vw, 58px); color: #334155; font-size: 16px; line-height: 1.95; }
.detail-content h2 { margin: 48px 0 18px; padding-bottom: 13px; color: var(--navy); font-size: 27px; border-bottom: 1px solid #e5edf4; }
.detail-content h2:first-child { margin-top: 0; }
.detail-content h3 { margin-top: 34px; color: #173f64; }
.detail-content p { margin: 0 0 18px; }
.detail-content img { display: block; height: auto; margin: 26px auto; border-radius: 18px; }
.detail-content a { color: #078fc5; text-decoration: underline; text-underline-offset: 3px; }
.detail-content table { display: block; max-width: 100%; overflow-x: auto; border-collapse: collapse; }
.detail-content th, .detail-content td { padding: 10px; border: 1px solid #dce6ef; }
.service-intro { margin-bottom: 28px; padding: 24px; border-radius: 22px; background: linear-gradient(135deg, #f2f9fd, #f8fafc); border: 1px solid #dbeaf4; }
.service-intro span { color: var(--cyan); font-size: 11px; font-weight: 900; letter-spacing: .18em; }
.service-intro h2 { margin: 8px 0 10px; padding: 0; border: 0; }
.service-intro p { margin: 0; }
.service-visuals { display: flex; flex-direction: column; gap: 0; overflow: hidden; border-radius: 22px; background: #f5f8fb; }
.service-visual { margin: 0; }
.detail-content .service-visual img { width: 100%; margin: 0 auto; border-radius: 0; }
.service-transcript { margin: 34px 0 8px; overflow: hidden; border: 1px solid #dbe7f3; border-radius: 20px; background: #f7fbff; }
.service-transcript summary { min-height: 52px; padding: 15px 20px; color: #0b3b6a; font-weight: 800; cursor: pointer; }
.service-transcript p { margin: 0; padding: 2px 20px 22px; color: #52657a; font-size: 15px; line-height: 1.9; text-wrap: pretty; }
.service-index-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.service-index-card { overflow: hidden; display: flex; flex-direction: column; color: inherit !important; text-decoration: none !important; border: 1px solid #dce6ef; border-radius: 22px; background: #fff; transition: transform .2s ease, box-shadow .2s ease; }
.service-index-card:hover { transform: translateY(-3px); box-shadow: 0 16px 34px rgba(11,59,106,.11); }
.service-index-media { aspect-ratio: 16 / 10; overflow: hidden; display: block; background: #edf5fa; }
.detail-content .service-index-media img { width: 100%; height: 100%; margin: 0; border-radius: 0; object-fit: cover; }
.service-index-copy { padding: 20px; display: block; }
.service-index-copy small { color: var(--cyan); font-size: 11px; font-weight: 900; letter-spacing: .12em; }
.service-index-copy strong { margin: 6px 0 8px; display: block; color: var(--ink); font-size: 20px; line-height: 1.35; }
.service-index-copy p { min-height: 54px; margin: 0 0 14px; color: var(--muted); font-size: 14px; line-height: 1.7; }
.service-index-copy b { color: #078fc5; font-size: 13px; }
.detail-aside { padding: 24px; position: sticky; top: 98px; }
.detail-aside h2 { margin: 0 0 8px; font-size: 20px; }
.detail-aside p { margin: 0 0 18px; color: var(--muted); font-size: 13px; line-height: 1.7; }
.detail-aside img { width: 100%; padding: 10px; border-radius: 20px; background: #fff; border: 2px dashed #e4ecf3; }
.detail-aside a { margin-top: 15px; min-height: 46px; display: flex; align-items: center; justify-content: center; color: #fff; border-radius: 14px; background: var(--cyan); font-weight: 900; }
.detail-facts { margin-bottom: 22px; padding: 18px; border-radius: 18px; background: var(--surface); }
.detail-facts div { padding: 8px 0; display: flex; justify-content: space-between; gap: 15px; border-bottom: 1px solid #e1e9f0; font-size: 13px; }
.detail-facts div:last-child { border-bottom: 0; }
.detail-facts span { color: var(--muted); }
.detail-footer { padding: 40px 20px; text-align: center; color: #7391ad; background: var(--navy); font-size: 11px; letter-spacing: .12em; }

@media (max-width: 820px) {
  .detail-header { align-items: flex-start; flex-direction: column; }
  .detail-nav { width: 100%; display: grid; grid-template-columns: repeat(3, 1fr); }
  .detail-nav a { padding: 9px 5px; text-align: center; font-size: 11px; }
  .detail-hero { padding-top: 45px; }
  .detail-layout { grid-template-columns: 1fr; }
  .detail-aside { position: static; display: grid; grid-template-columns: 120px 1fr; gap: 18px; }
  .detail-aside a { grid-column: 1 / -1; }
}

@media (max-width: 480px) {
  .detail-content { padding: 24px 18px; font-size: 15px; }
  .detail-content h2 { font-size: 22px; }
  .detail-aside { grid-template-columns: 96px 1fr; padding: 18px; }
  .service-index-grid { grid-template-columns: 1fr; }
  .service-index-copy p { min-height: 0; }
}