:root {
  --brand: #0b5cab;
  --brand-dark: #084a8a;
  --brand-soft: #e8f2fb;
  --accent: #f0a202;
  --text: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --bg: #f6f8fb;
  --card: #ffffff;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --container: 1120px;
  --header-h: 72px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
.container { width: min(100% - 32px, var(--container)); margin: 0 auto; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* Header / Nav */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  position: relative;
  min-height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.header-inner .site-nav {
  flex: 1;
  justify-content: flex-end;
  margin-right: 8px;
}
.brand {
  display: flex; align-items: center; gap: 12px; min-width: 0;
}
.brand img { height: 40px; width: auto; }
.brand-text { min-width: 0; }
.brand-title {
  display: block; font-size: 18px; font-weight: 700; color: var(--brand);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.brand-sub {
  display: block; font-size: 12px; color: var(--muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.site-nav { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.site-nav a {
  padding: 8px 12px; border-radius: 999px; color: #334155; font-size: 14px; font-weight: 500;
}
.site-nav a:hover { background: var(--brand-soft); color: var(--brand); }
.site-nav a.active {
  background: var(--brand); color: #fff;
}
.nav-toggle {
  display: none; border: 1px solid var(--line); background: #fff;
  border-radius: 10px; padding: 8px 12px; cursor: pointer;
}
.header-actions { display: flex; align-items: center; gap: 10px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 18px; border-radius: 999px; border: 1px solid transparent;
  font-weight: 600; font-size: 14px; cursor: pointer; transition: .2s ease;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); }
.btn-outline { background: #fff; border-color: var(--line); color: var(--text); }
.btn-outline:hover { border-color: var(--brand); color: var(--brand); }
.btn-accent { background: var(--accent); color: #1f2937; }
.btn-accent:hover { filter: brightness(.95); }

/* Hero */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, #0b5cab 0%, #0e7490 55%, #155e75 100%);
  color: #fff;
}
.hero-slider { position: relative; min-height: 420px; }
.hero-slide {
  display: none; position: relative; min-height: 420px;
  background-size: cover; background-position: center; background-color: #0b5cab;
}
.hero-slide.is-active { display: block; }
.hero-slide::before {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: linear-gradient(90deg, rgba(8, 47, 73, .78), rgba(8, 47, 73, .35));
}
.hero-content {
  position: relative; z-index: 1;
  min-height: 420px; display: grid; align-content: center; gap: 16px;
  padding: 56px 0;
}
.btn-hero-ghost {
  background: rgba(255,255,255,.12) !important;
  border-color: rgba(255,255,255,.35) !important;
  color: #fff !important;
}
.btn-hero-ghost:hover {
  background: rgba(255,255,255,.2) !important;
  border-color: rgba(255,255,255,.55) !important;
  color: #fff !important;
}
.hero-kicker {
  display: inline-flex; width: fit-content;
  padding: 6px 12px; border-radius: 999px;
  background: rgba(255,255,255,.14); font-size: 13px;
}
.hero h1 { margin: 0; font-size: clamp(28px, 4vw, 44px); line-height: 1.2; max-width: 16ch; }
.hero p { margin: 0; max-width: 54ch; color: rgba(255,255,255,.9); font-size: 16px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.hero-dots {
  position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%);
  display: flex; gap: 8px; z-index: 2;
}
.hero-dots button {
  width: 10px; height: 10px; border-radius: 50%; border: 0;
  background: rgba(255,255,255,.45); cursor: pointer; padding: 0;
}
.hero-dots button.is-active { background: #fff; width: 24px; border-radius: 999px; }

/* Sections */
.section { padding: 56px 0; }
.section-head {
  display: flex; align-items: end; justify-content: space-between; gap: 16px;
  margin-bottom: 28px;
}
.section-head h2 { margin: 0; font-size: 28px; letter-spacing: -.02em; }
.section-head p { margin: 6px 0 0; color: var(--muted); }
.section-link { color: var(--brand); font-weight: 600; white-space: nowrap; }
.section-muted { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

/* Cards / grids */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden;
}
.card-body { padding: 20px; }
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); }
.feature-item {
  display: grid; gap: 12px; padding: 22px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius);
}
.feature-item .icon {
  width: 48px; height: 48px; border-radius: 12px; object-fit: cover;
  background: var(--brand-soft);
}
.feature-item h3 { margin: 0; font-size: 18px; }
.feature-item p { margin: 0; color: var(--muted); font-size: 14px; }

.intro-panel {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; align-items: center;
  background: #fff; border: 1px solid var(--line); border-radius: calc(var(--radius) + 4px);
  box-shadow: var(--shadow); overflow: hidden;
}
.intro-panel .media { min-height: 280px; background: var(--brand-soft); }
.intro-panel .media img { width: 100%; height: 100%; object-fit: cover; min-height: 280px; }
.intro-panel .copy { padding: 32px; }
.intro-panel h2 { margin: 0 0 12px; font-size: 28px; }
.intro-panel p { margin: 0 0 18px; color: var(--muted); }

.content-card { display: grid; gap: 12px; height: 100%; }
.content-card .meta {
  display: flex; flex-wrap: wrap; gap: 10px; color: var(--muted); font-size: 13px;
}
.content-card h3 a:hover { color: var(--brand); }
.content-card .more { color: var(--brand); font-weight: 600; font-size: 14px; }

/* Page chrome */
.page-banner {
  background: linear-gradient(135deg, #0b5cab, #155e75);
  color: #fff; padding: 36px 0;
}
.page-banner h1 { margin: 0 0 8px; font-size: clamp(24px, 3vw, 36px); }
.page-banner p { margin: 0; color: rgba(255,255,255,.88); max-width: 70ch; }
.breadcrumb {
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
  margin-bottom: 12px; font-size: 13px; color: rgba(255,255,255,.8);
}
.breadcrumb a:hover { color: #fff; text-decoration: underline; }
.breadcrumb .sep { opacity: .6; }

.page-layout {
  display: grid; grid-template-columns: 1fr 300px; gap: 24px; padding: 32px 0 56px;
}
.page-main, .page-side { min-width: 0; }
.panel {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.panel + .panel { margin-top: 16px; }
.panel-hd {
  padding: 14px 18px; border-bottom: 1px solid var(--line);
  font-weight: 700;
}
.panel-bd { padding: 16px 18px; }
.side-list { list-style: none; margin: 0; padding: 0; }
.side-list li + li { border-top: 1px solid var(--line); }
.side-list a {
  display: block; padding: 12px 0; color: #334155; font-size: 14px;
}
.side-list a:hover { color: var(--brand); }
.side-list a.active { color: var(--brand); font-weight: 700; }

/* Content list / article */
.list-item {
  display: grid; gap: 8px; padding: 20px; border-bottom: 1px solid var(--line);
}
.list-item:last-child { border-bottom: 0; }
.list-item h2 { margin: 0; font-size: 20px; }
.list-item h2 a:hover { color: var(--brand); }
.list-item .summary { margin: 0; color: var(--muted); }
.list-item .meta { color: var(--muted); font-size: 13px; }
.empty-state {
  padding: 40px 20px; text-align: center; color: var(--muted);
}

.article { padding: 28px; }
.article-meta {
  display: flex; flex-wrap: wrap; gap: 12px 18px;
  margin: 10px 0 22px; color: var(--muted); font-size: 13px;
}
.article-body {
  font-size: 16px; color: #243041;
}
.article-body h2, .article-body h3 { margin-top: 1.4em; }
.article-body p { margin: 0 0 1em; }
.article-body img { border-radius: 10px; margin: 12px 0; }
.article-body a { color: var(--brand); text-decoration: underline; }
.article-body ul, .article-body ol { padding-left: 1.4em; }

/* Pager */
.pager {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 22px 20px 8px;
  border-top: 1px solid var(--line);
  text-align: center;
}
.pager-standalone {
  margin-top: 28px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  padding: 18px 16px;
}
.pager-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.pager a,
.pager strong,
.pager span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 14px;
  line-height: 1;
}
.pager strong {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}
.pager a:hover {
  border-color: var(--brand);
  color: var(--brand);
}
.pager .is-disabled {
  color: #94a3b8;
  background: #f8fafc;
  cursor: not-allowed;
}
.pager-meta,
.pager .info {
  border: 0;
  background: transparent;
  color: var(--muted);
  min-width: auto;
  height: auto;
  padding: 0;
  font-size: 13px;
}

/* Contact / message */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1.1fr; gap: 20px;
}
.contact-list { list-style: none; margin: 0; padding: 0; }
.contact-list li {
  display: grid; gap: 4px; padding: 14px 0; border-bottom: 1px solid var(--line);
}
.contact-list li:last-child { border-bottom: 0; }
.contact-list .label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.contact-list .value { font-weight: 600; }

.form-card { padding: 22px; }
.field { margin-bottom: 14px; }
.field label { display: block; margin-bottom: 6px; font-size: 13px; font-weight: 600; }
.field .req { color: #cf1322; }
.field input, .field textarea {
  width: 100%; padding: 11px 12px; border: 1px solid var(--line);
  border-radius: 12px; background: #fff; outline: none;
}
.field input:focus, .field textarea:focus {
  border-color: var(--brand); box-shadow: 0 0 0 3px rgba(11, 92, 171, .12);
}
.field textarea { min-height: 140px; resize: vertical; }
.form-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
#msg-status { min-height: 20px; font-size: 13px; color: var(--muted); margin: 10px 0 0; }
#msg-status.error { color: #cf1322; }
#msg-status.success { color: #389e0d; }

/* CTA */
.cta {
  background: linear-gradient(135deg, #0b5cab, #0f766e);
  color: #fff; border-radius: calc(var(--radius) + 6px);
  padding: 36px; display: flex; justify-content: space-between; align-items: center; gap: 20px;
  box-shadow: var(--shadow);
}
.cta h2 { margin: 0 0 8px; font-size: 28px; }
.cta p { margin: 0; color: rgba(255,255,255,.9); }

/* Footer */
.site-footer {
  background: #0f172a; color: #cbd5e1; margin-top: 24px;
}
.footer-grid {
  display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.1fr; gap: 28px;
  padding: 48px 0 28px;
}
.footer-brand .logo {
  display: flex; align-items: center; gap: 10px; margin-bottom: 12px; color: #fff; font-weight: 700;
}
.footer-brand .logo img { height: 36px; }
.footer-brand p { margin: 0; color: #94a3b8; font-size: 14px; }
.footer-col h4 {
  margin: 0 0 14px; color: #fff; font-size: 15px;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li + li { margin-top: 8px; }
.footer-col a { color: #94a3b8; font-size: 14px; }
.footer-col a:hover { color: #fff; }
.footer-meta {
  border-top: 1px solid rgba(148,163,184,.2);
  padding: 16px 0 28px; display: flex; justify-content: space-between; gap: 12px;
  flex-wrap: wrap; font-size: 13px; color: #94a3b8;
}
.friend-links {
  display: flex; flex-wrap: wrap; gap: 10px 16px; margin-top: 10px;
}
.friend-links a { color: #94a3b8; font-size: 13px; }
.friend-links a:hover { color: #fff; }

/* Stats strip */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: -36px; position: relative; z-index: 2;
}
.stat-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px 16px; text-align: center;
}
.stat-card strong { display: block; font-size: 24px; color: var(--brand); }
.stat-card span { color: var(--muted); font-size: 13px; }

/* Responsive */
@media (max-width: 960px) {
  .grid-3, .grid-2, .intro-panel, .page-layout, .contact-grid, .footer-grid, .stats {
    grid-template-columns: 1fr;
  }
  .intro-panel .media img { min-height: 200px; }
  .stats { margin-top: 20px; grid-template-columns: repeat(2, 1fr); }
  .cta { flex-direction: column; align-items: flex-start; }
  .nav-toggle { display: inline-flex; }
  .site-nav {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: 12px 16px 16px; flex-direction: column; align-items: stretch;
  }
  .site-nav.is-open { display: flex; }
  /* 导航端保留「联系我们」CTA：导航已去掉 contact 避免重复 */
  .header-actions .btn-cta-desktop { display: inline-flex; padding: 8px 12px; font-size: 13px; }
}

@media (max-width: 640px) {
  .section { padding: 40px 0; }
  .hero-slider, .hero-slide, .hero-content { min-height: 360px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .article { padding: 18px; }
}


/* Related sites */
.related-sites {
  display: grid;
  gap: 18px;
  padding: 28px 0 8px;
  border-top: 1px solid rgba(255,255,255,.08);
  margin-top: 12px;
}
.related-group h4 {
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: .04em;
  text-transform: none;
  color: #94a3b8;
  font-weight: 600;
}
.related-list { display: flex; flex-wrap: wrap; gap: 10px; }
.related-chip {
  display: inline-flex; flex-direction: column; gap: 2px;
  min-width: 140px; padding: 10px 14px;
  border-radius: 12px; border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04); color: #e2e8f0;
}
.related-chip:hover { border-color: rgba(255,255,255,.28); background: rgba(255,255,255,.08); }
.related-chip strong { font-size: 13px; font-weight: 600; color: #fff; }
.related-chip span { font-size: 12px; color: #94a3b8; }

/* Testimonials / Partners / FAQ / prose */
.prose { line-height: 1.8; color: var(--text); }
.prose p { margin: 0 0 12px; }
.prose ul { margin: 0 0 12px; padding-left: 1.2em; }
.testimonial-grid, .partner-grid { display: grid; gap: 16px; }
.testimonial-grid { grid-template-columns: repeat(3, 1fr); }
.partner-grid {
  grid-template-columns: repeat(4, 1fr);
  align-items: center;
}
.partner-item {
  display: flex; align-items: center; justify-content: center;
  min-height: 84px; padding: 16px;
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
}
.partner-item img { max-height: 40px; max-width: 140px; object-fit: contain; }
.faq-list { display: grid; gap: 12px; }
.faq-item {
  background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px;
}
.faq-item summary { cursor: pointer; font-weight: 600; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item p { margin: 10px 0 0; color: var(--muted); }

@media (max-width: 960px) {
  .testimonial-grid, .partner-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .testimonial-grid, .partner-grid { grid-template-columns: 1fr; }
  .related-chip { min-width: 0; flex: 1 1 140px; }
}


/* Product center */
.product-banner {
  background: linear-gradient(135deg, #0b5cab 0%, #0e7490 100%);
  color: #fff;
  padding: 36px 0 28px;
}
.product-banner .breadcrumb a { color: rgba(255,255,255,.9); }
.product-banner h1 { margin: 10px 0 8px; font-size: clamp(28px, 3vw, 40px); }
.product-banner p { margin: 0; max-width: 60ch; color: rgba(255,255,255,.88); }
.product-page { padding: 28px 0 56px; }
.product-toolbar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  margin-bottom: 22px;
}
.product-toolbar strong { font-size: 22px; color: var(--brand); margin-right: 6px; }
.product-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.product-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden; display: flex; flex-direction: column;
}
.product-cover, .product-cover-fallback {
  display: block; aspect-ratio: 16/10; background: #e8f2fb; overflow: hidden;
}
.product-cover img { width: 100%; height: 100%; object-fit: cover; }
.product-cover-fallback {
  display: grid; place-items: center; color: var(--brand); font-weight: 700; padding: 16px; text-align: center;
}
.product-cover-fallback.tall { min-height: 280px; aspect-ratio: auto; border-radius: 16px; }
.product-card-body { padding: 18px; display: grid; gap: 10px; flex: 1; }
.product-card-body h2 { margin: 0; font-size: 18px; line-height: 1.35; }
.product-card-body p { margin: 0; color: var(--muted); font-size: 14px; }
.product-card-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: auto; padding-top: 8px; }

.product-detail { padding: 24px 0 56px; }
.product-detail-hero {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 28px; align-items: stretch;
  margin-bottom: 28px;
}
.product-detail-media {
  background: #fff; border: 1px solid var(--line); border-radius: 18px; overflow: hidden;
  box-shadow: var(--shadow); min-height: 320px;
}
.product-detail-media img { width: 100%; height: 100%; object-fit: cover; min-height: 320px; }
.product-detail-summary {
  background: #fff; border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow);
  padding: 24px; display: grid; align-content: start; gap: 14px;
}
.product-badge {
  display: inline-flex; width: fit-content; padding: 4px 10px; border-radius: 999px;
  background: var(--brand-soft); color: var(--brand); font-size: 12px; font-weight: 600;
}
.product-detail-summary h1 { margin: 0; font-size: clamp(26px, 3vw, 36px); line-height: 1.25; }
.product-detail-summary .lead { margin: 0; color: var(--muted); font-size: 15px; }
.product-meta-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.product-meta-list li { display: flex; gap: 12px; font-size: 14px; }
.product-meta-list span { color: var(--muted); min-width: 3em; }
.product-detail-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 6px; }
.product-detail-layout {
  display: grid; grid-template-columns: 1.5fr .8fr; gap: 20px; align-items: start;
}
.product-section-title { margin: 0 0 14px; font-size: 20px; }
.product-points { display: grid; gap: 10px; }
.product-points li {
  padding: 10px 12px; border-radius: 10px; background: var(--brand-soft); color: var(--brand-dark);
  font-size: 14px; font-weight: 500;
}

@media (max-width: 960px) {
  .product-grid, .product-detail-hero, .product-detail-layout { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .product-grid { grid-template-columns: 1fr; }
  .product-toolbar { flex-direction: column; align-items: flex-start; }
}

/* ===== GEO 八锚点：首屏导航 / 流程步骤 / 问答 ===== */
.anchor-nav ul { display: flex; flex-wrap: wrap; gap: 8px 14px; list-style: none; padding: 0; margin: 12px 0; }
.anchor-nav a { display: inline-block; padding: 6px 12px; border: 1px solid #e3e6ea; border-radius: 999px; font-size: 14px; text-decoration: none; }
.anchor-nav a:hover { border-color: #2f6fed; color: #2f6fed; }
.steps { list-style: none; padding: 0; margin: 0; counter-reset: step; }
.steps li { position: relative; padding: 0 0 18px 34px; border-left: 1px solid #e3e6ea; margin-left: 8px; }
.steps li:last-child { border-left-color: transparent; }
.steps li::before { content: counter(step); counter-increment: step; position: absolute; left: -14px; top: 0; width: 26px; height: 26px; border-radius: 50%; background: #2f6fed; color: #fff; font-size: 13px; display: flex; align-items: center; justify-content: center; }
.steps li p { margin: 6px 0 0; }
.prose details { border-bottom: 1px solid #e3e6ea; padding: 10px 0; }
.prose details summary { cursor: pointer; font-weight: 600; }
.prose details p { margin: 8px 0 0; }