:root {
  --bg: #f6f8f9;
  --surface: #ffffff;
  --text: #1f2933;
  --muted: #64748b;
  --line: #e4e9ee;
  --accent: #0f8b8d;
  --accent-soft: #e8f6f6;
  --accent-blue: #2f80ed;
  --shadow: 0 14px 34px rgba(31, 41, 51, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 24px;
}

.brand-title {
  display: inline-block;
  color: var(--text);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.3;
}

.brand-subtitle {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  border-radius: 8px;
  color: #405366;
  font-size: 14px;
  padding: 8px 12px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: var(--accent-soft);
  color: var(--accent);
  outline: none;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--text);
}

.section {
  padding: 76px 0;
}

.hero {
  padding: 86px 0 70px;
  background:
    linear-gradient(135deg, rgba(15, 139, 141, 0.08), rgba(47, 128, 237, 0.06) 46%, rgba(255, 255, 255, 0) 72%),
    var(--surface);
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  align-items: center;
  gap: 42px;
}

.section-kicker {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--text);
  line-height: 1.35;
}

h1 {
  max-width: 680px;
  font-size: clamp(34px, 6vw, 56px);
  font-weight: 800;
}

h2 {
  font-size: 28px;
  font-weight: 760;
}

h3 {
  font-size: 19px;
  font-weight: 730;
}

.hero-text {
  max-width: 720px;
  margin: 22px 0 0;
  color: #425466;
  font-size: 18px;
}

.info-card,
.tool-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.info-card {
  padding: 24px;
}

.info-card dl {
  margin: 0;
}

.info-card div {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 14px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.info-card div:first-child {
  padding-top: 0;
}

.info-card div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.info-card dt {
  color: var(--muted);
  font-size: 14px;
}

.info-card dd {
  margin: 0;
  color: var(--text);
  font-weight: 650;
}

.section-heading {
  max-width: 680px;
  margin-bottom: 28px;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.tool-card {
  display: flex;
  min-height: 250px;
  flex-direction: column;
  padding: 22px;
  box-shadow: none;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.tool-card:hover {
  border-color: rgba(15, 139, 141, 0.38);
  transform: translateY(-2px);
}

.tool-card p {
  margin: 12px 0 22px;
  color: var(--muted);
  font-size: 15px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.tag-row span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  border: 1px solid rgba(15, 139, 141, 0.18);
  border-radius: 999px;
  background: var(--accent-soft);
  color: #0c6768;
  font-size: 13px;
  padding: 3px 10px;
}

.muted-section,
.compliance-section {
  background: #f1f5f7;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(220px, 0.36fr) minmax(0, 0.64fr);
  gap: 42px;
}

.timeline {
  position: relative;
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline li {
  position: relative;
  padding-left: 30px;
}

.timeline li::before {
  position: absolute;
  top: 9px;
  left: 0;
  width: 10px;
  height: 10px;
  border: 3px solid var(--accent);
  border-radius: 50%;
  background: var(--surface);
  content: "";
}

.timeline li::after {
  position: absolute;
  top: 25px;
  bottom: -22px;
  left: 7px;
  width: 1px;
  background: var(--line);
  content: "";
}

.timeline li:last-child::after {
  display: none;
}

.timeline time {
  display: block;
  color: var(--accent-blue);
  font-size: 14px;
  font-weight: 700;
}

.timeline p,
.plain-text {
  margin: 4px 0 0;
  color: #46586a;
}

.plain-text {
  max-width: 760px;
  margin-top: 0;
}

.compliance-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.compliance-list li {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: #405366;
  padding: 12px 16px 12px 40px;
}

.compliance-list li::before {
  position: absolute;
  top: 16px;
  left: 17px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  content: "";
}

.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  padding: 24px 0;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
}

.footer-inner p {
  margin: 0;
}

.footer-inner a {
  color: var(--muted);
}

.footer-inner a:hover,
.footer-inner a:focus-visible {
  color: var(--accent);
  outline: none;
}

.police-record {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.police-icon {
  display: inline-flex;
  min-width: 68px;
  min-height: 24px;
  align-items: center;
  justify-content: center;
  border: 1px dashed #b9c6d1;
  border-radius: 6px;
  color: #7b8b9a;
  font-size: 12px;
}

@media (max-width: 980px) {
  .tool-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-grid,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .section-heading {
    margin-bottom: 22px;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(100% - 28px, 1120px);
  }

  .header-inner {
    min-height: 68px;
  }

  .brand-title {
    font-size: 17px;
  }

  .brand-subtitle {
    max-width: 230px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 68px;
    right: 14px;
    left: 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    box-shadow: var(--shadow);
    padding: 8px;
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 11px 12px;
  }

  .section {
    padding: 54px 0;
  }

  .hero {
    padding: 58px 0 52px;
  }

  h1 {
    font-size: 36px;
  }

  h2 {
    font-size: 24px;
  }

  .hero-text {
    font-size: 16px;
  }

  .tool-grid {
    grid-template-columns: 1fr;
  }

  .tool-card {
    min-height: auto;
  }

  .info-card div {
    grid-template-columns: 1fr;
    gap: 3px;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .police-record {
    align-items: flex-start;
  }
}