/* 广告公司宣传页 · 结构对齐道路救援 guest，品牌色对齐本系统 */
:root {
  --guest-primary: #1a4a6e;
  --guest-primary-dark: #0f2744;
  --guest-accent: #c45c26;
  --guest-ink: #0f172a;
  --guest-muted: #64748b;
  --guest-border: #e2e8f0;
  --guest-card: #ffffff;
  --guest-bg: #f8fafc;
  --guest-max: 1120px;
  --guest-radius: 14px;
  --guest-soft: #eef4f9;
  --guest-soft-border: #c5d5e4;
  --guest-chip-bg: #fff4ec;
  --guest-chip-border: #f0b089;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.guest-page {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--guest-ink);
  background: linear-gradient(180deg, #ffffff 0%, #eef4f9 42%, #f8fafc 100%);
  line-height: 1.65;
  padding-bottom: 40px;
}
a { color: var(--guest-primary-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

.intro-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--guest-border);
}
.nav-top {
  max-width: var(--guest-max);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.intro-nav .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--guest-ink);
  font-weight: 800;
  font-size: 1rem;
  text-decoration: none;
  white-space: nowrap;
}
.brand-mark {
  width: 34px; height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--guest-accent), var(--guest-primary-dark));
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.72rem; font-weight: 900;
}
.nav-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  align-items: center;
}
.nav-links a {
  color: var(--guest-muted);
  font-size: 0.84rem;
  font-weight: 500;
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
}
.nav-links a:hover,
.nav-links a.is-active {
  color: var(--guest-primary-dark);
  border-bottom-color: var(--guest-accent);
  text-decoration: none;
}
.nav-actions { display: flex; gap: 10px; align-items: center; flex-shrink: 0; }

.btn-intro {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 9px 18px; border-radius: 999px;
  font-size: 0.85rem; font-weight: 600;
  text-decoration: none; transition: transform .15s, box-shadow .15s, background .15s;
  border: 1.5px solid transparent;
  cursor: pointer;
}
.btn-intro:hover { transform: translateY(-1px); text-decoration: none; }
.btn-intro.primary {
  background: var(--guest-accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(196, 92, 38, 0.28);
}
.btn-intro.ghost {
  background: #fff;
  color: var(--guest-ink);
  border-color: var(--guest-border);
}
.btn-intro.ghost:hover { border-color: var(--guest-accent); color: var(--guest-primary-dark); }

.hero-split {
  max-width: var(--guest-max);
  margin: 0 auto;
  padding: 48px 24px 28px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 36px;
  align-items: center;
}
.hero-eyebrow {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--guest-chip-bg);
  color: var(--guest-accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}
.hero-split h1 {
  margin: 0 0 12px;
  font-size: clamp(1.85rem, 3.6vw, 2.65rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.hero-split h1 em {
  font-style: normal;
  color: var(--guest-accent);
}
.hero-flow {
  margin: 0 0 14px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--guest-primary-dark);
}
.hero-lead {
  margin: 0 0 22px;
  color: var(--guest-muted);
  font-size: 0.98rem;
  max-width: 520px;
  line-height: 1.8;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 22px; }
.hero-stats {
  display: flex; flex-wrap: wrap; gap: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--guest-border);
}
.hero-stats div strong {
  display: block;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--guest-ink);
}
.hero-stats div span {
  font-size: 0.76rem;
  color: var(--guest-muted);
}
.hero-visual {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--guest-border);
  box-shadow: 0 24px 48px rgba(15, 39, 68, 0.14);
  background: #0f2744;
  min-height: 340px;
}
.hero-visual img {
  width: 100%;
  height: 100%;
  min-height: 340px;
  object-fit: cover;
  display: block;
}
.hero-visual-cap {
  position: absolute;
  left: 16px; right: 16px; bottom: 16px;
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(15, 39, 68, 0.78);
  color: #e2e8f0;
  font-size: 0.82rem;
  backdrop-filter: blur(8px);
}
.hero-visual-cap strong { display: block; color: #fff; margin-bottom: 2px; }

.hero-thumbs {
  max-width: var(--guest-max);
  margin: 0 auto 8px;
  padding: 0 24px 32px;
  display: flex;
  gap: 12px;
}
.hero-thumbs button {
  flex: 1;
  border: 1px solid var(--guest-border);
  background: #fff;
  border-radius: 12px;
  padding: 10px 12px;
  text-align: left;
  cursor: pointer;
  font: inherit;
  color: var(--guest-muted);
  transition: border-color .15s, box-shadow .15s;
}
.hero-thumbs button strong {
  display: block;
  color: var(--guest-ink);
  font-size: 0.86rem;
  margin-bottom: 2px;
}
.hero-thumbs button span { font-size: 0.75rem; }
.hero-thumbs button.is-active {
  border-color: var(--guest-accent);
  box-shadow: 0 0 0 3px rgba(196, 92, 38, 0.15);
}

.guest-main {
  max-width: var(--guest-max);
  margin: 0 auto;
  padding: 8px 24px 48px;
}
.guest-section { margin-bottom: 56px; }
.section-tag {
  color: var(--guest-accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.section-head h2 {
  margin: 0 0 8px;
  font-size: 1.55rem;
  font-weight: 800;
}
.section-head p {
  margin: 0 0 22px;
  color: var(--guest-muted);
  max-width: 720px;
}

.guest-card {
  background: var(--guest-card);
  border: 1px solid var(--guest-border);
  border-radius: var(--guest-radius);
  padding: 22px 24px;
  margin-bottom: 18px;
}
.module-chips {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-top: 14px;
}
.module-chips span {
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--guest-soft);
  color: var(--guest-primary-dark);
  font-size: 0.78rem;
  font-weight: 600;
  border: 1px solid var(--guest-soft-border);
}

.feature-catalog {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.feature-group {
  background: #fff;
  border: 1px solid var(--guest-border);
  border-radius: var(--guest-radius);
  padding: 18px 18px 10px;
}
.feature-group h3 {
  margin: 0 0 10px;
  font-size: 1rem;
  color: var(--guest-primary-dark);
}
.feature-group ul {
  margin: 0;
  padding: 0 0 0 1.1rem;
  color: var(--guest-muted);
  font-size: 0.86rem;
}
.feature-group li { margin-bottom: 6px; }

.level-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.level-item {
  padding: 18px 14px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--guest-border);
  text-align: center;
  font-size: 0.8rem;
  color: var(--guest-muted);
}
.level-item strong {
  display: block;
  color: var(--guest-primary-dark);
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.service-card {
  background: #fff;
  border: 1px solid var(--guest-border);
  border-radius: var(--guest-radius);
  padding: 22px;
}
.service-card .icon { font-size: 1.6rem; margin-bottom: 8px; }
.service-card h3 { margin: 0 0 8px; font-size: 1rem; }
.service-card p { margin: 0; font-size: 0.86rem; color: var(--guest-muted); }

.role-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.role-card {
  display: block;
  background: #fff;
  border: 1px solid var(--guest-border);
  border-radius: 12px;
  padding: 16px 16px 16px 18px;
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
  transition: border-color .15s, transform .15s, box-shadow .15s;
}
.role-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--guest-accent);
}
.role-card:hover {
  border-color: var(--guest-accent);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(15, 39, 68, 0.08);
  text-decoration: none;
}
.role-card strong {
  display: block;
  font-size: 0.98rem;
  margin-bottom: 4px;
}
.role-card em {
  display: block;
  font-style: normal;
  font-size: 0.78rem;
  color: var(--guest-muted);
  margin-bottom: 8px;
}
.role-card span {
  font-size: 0.8rem;
  color: #475569;
  line-height: 1.55;
}
.role-card.is-dark {
  background: linear-gradient(145deg, #0f2744, #1a4a6e);
  color: #eef4f9;
  border-color: transparent;
}
.role-card.is-dark::before { background: var(--guest-accent); }
.role-card.is-dark em,
.role-card.is-dark span { color: rgba(238, 244, 249, 0.78); }

.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr;
  gap: 18px;
  align-items: stretch;
}
.contact-copy h3 {
  margin: 0 0 10px;
  font-size: 1.35rem;
}
.contact-copy p {
  margin: 0 0 16px;
  color: var(--guest-muted);
  font-size: 0.92rem;
}
.phone-pill {
  display: inline-flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 18px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--guest-border);
  text-decoration: none;
  color: inherit;
  min-width: 220px;
}
.phone-pill:hover { border-color: var(--guest-accent); text-decoration: none; }
.phone-pill em {
  font-style: normal;
  font-size: 0.75rem;
  color: var(--guest-muted);
}
.phone-pill span {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--guest-accent);
  letter-spacing: 0.02em;
}
.phone-pill small {
  font-size: 0.75rem;
  color: var(--guest-muted);
}
.qr-panel {
  background: #fff;
  border: 1px solid var(--guest-border);
  border-radius: 18px;
  padding: 22px;
  text-align: center;
  box-shadow: 0 12px 32px rgba(15, 39, 68, 0.05);
}
.qr-panel h4 {
  margin: 0 0 14px;
  font-size: 1rem;
}
.qr-panel img.wecom-qr {
  width: 168px;
  height: 168px;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
}
.qr-panel .qr-tip {
  margin: 12px 0 0;
  font-size: 0.82rem;
  color: var(--guest-muted);
}
.scan-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 18px;
}
.scan-card {
  background: #fff;
  border: 1px solid var(--guest-border);
  border-radius: 14px;
  padding: 16px;
  text-align: center;
}
.scan-card img {
  width: 120px;
  height: 120px;
  margin: 0 auto 10px;
  display: block;
}
.scan-card strong { display: block; font-size: 0.9rem; margin-bottom: 4px; }
.scan-card span { font-size: 0.78rem; color: var(--guest-muted); }

.guest-foot {
  max-width: var(--guest-max);
  margin: 0 auto;
  padding: 28px 24px 80px;
  color: var(--guest-muted);
  font-size: 0.84rem;
  border-top: 1px solid var(--guest-border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}
.guest-foot nav { display: flex; flex-wrap: wrap; gap: 14px; }
.guest-foot a { color: var(--guest-muted); font-size: 0.84rem; }
.guest-foot a:hover { color: var(--guest-primary-dark); }

.float-demo {
  position: fixed;
  right: 20px;
  bottom: 22px;
  z-index: 120;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--guest-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  text-align: center;
  line-height: 1.2;
  text-decoration: none;
  box-shadow: 0 10px 28px rgba(196, 92, 38, 0.4);
}
.float-demo:hover { text-decoration: none; color: #fff; transform: translateY(-2px); }

@media (max-width: 960px) {
  .nav-links { display: none; }
  .hero-split,
  .feature-catalog,
  .service-grid,
  .role-grid,
  .contact-grid,
  .level-grid,
  .scan-row,
  .hero-thumbs {
    grid-template-columns: 1fr;
  }
  .hero-thumbs { flex-direction: column; }
  .level-grid { grid-template-columns: 1fr 1fr; }
  .role-grid { grid-template-columns: 1fr; }
}