:root {
  --bg: #F3FAF8;
  --ink: #12333A;
  --muted: #4A6A6E;
  --header: #0D7377;
  --can: #14919B;
  --limit: #C45C26;
  --card: #FFFFFF;
  --line: #C7DED9;
  --soft: #E4F4F1;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: auto;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: "Lucida Grande", "Lucida Sans Unicode", "Microsoft YaHei", sans-serif;
  line-height: 1.75;
  font-size: 16px;
}

a {
  color: var(--can);
  text-decoration: none;
}

.wrap {
  width: min(1100px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  background: #F7FCFB;
  border-bottom: 1px solid #B9D8D4;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--header);
  font-weight: 700;
}

.brand svg {
  width: 36px;
  height: 36px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  justify-content: flex-end;
}

.nav a {
  color: #24585C;
  font-size: 14px;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
}

.nav a:hover,
.nav a:focus {
  color: var(--header);
  border-bottom-color: var(--can);
}

.hero {
  padding: 32px 0 12px;
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 28px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(26px, 3.6vw, 34px);
  line-height: 1.3;
  margin-bottom: 12px;
}

.hero p {
  color: var(--muted);
  margin-bottom: 8px;
}

.badges {
  display: grid;
  gap: 12px;
}

.badge {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.badge svg {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.badge strong {
  display: block;
  font-size: 18px;
}

.badge span {
  color: var(--muted);
  font-size: 14px;
}

.section {
  padding: 30px 0;
}

.section h2 {
  font-size: 24px;
  margin-bottom: 14px;
}

.lead {
  color: var(--muted);
  margin-bottom: 18px;
  max-width: 48em;
}

.grid-4,
.grid-3 {
  display: grid;
  gap: 16px;
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 16px;
}

.card.can {
  border-top: 5px solid var(--can);
}

.card.limit {
  border-top: 5px solid var(--limit);
}

.card svg {
  width: 30px;
  height: 30px;
  margin-bottom: 10px;
}

.card h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.card p + p,
.panel p + p {
  margin-top: 8px;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
}

.panel h3 {
  margin-bottom: 10px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.step {
  background: var(--soft);
  border-radius: 14px;
  padding: 16px;
}

.step b {
  display: block;
  color: var(--header);
  margin-bottom: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid var(--line);
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 12px 13px;
  text-align: left;
  vertical-align: top;
  font-size: 15px;
}

th {
  background: var(--header);
  color: #fff;
}

.tips .card {
  background: #fff;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-left: 4px solid var(--can);
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 10px;
}

.faq-item h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.site-footer {
  background: var(--header);
  color: #E7F6F5;
  padding: 28px 0;
  font-size: 14px;
}

.site-footer p + p {
  margin-top: 8px;
}

@media (max-width: 960px) {
  .hero,
  .grid-4,
  .grid-3,
  .split,
  .steps {
    grid-template-columns: 1fr;
  }

  .site-header .wrap {
    flex-direction: column;
    align-items: flex-start;
    padding: 14px 0;
  }
}