:root {
  color-scheme: light;
  --bg: #f7f8f4;
  --surface: #ffffff;
  --surface-soft: #eef5f1;
  --text: #18201d;
  --muted: #637069;
  --line: #d9e1dc;
  --brand: #08756c;
  --brand-strong: #0b4f63;
  --accent: #d2553d;
  --warning: #d8a321;
  --shadow: 0 18px 48px rgba(15, 45, 44, 0.12);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
}

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

code {
  padding: 0.08rem 0.28rem;
  border-radius: 5px;
  background: #e7ece9;
  color: #26322e;
  font-size: 0.92em;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 48px);
  border-bottom: 1px solid rgba(217, 225, 220, 0.9);
  background: rgba(247, 248, 244, 0.92);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.brand {
  font-weight: 800;
  color: var(--brand-strong);
}

.nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.nav a {
  padding: 8px 10px;
  border-radius: 6px;
  color: var(--muted);
  font-size: 14px;
}

.nav a:hover,
.nav a[aria-current="page"] {
  background: var(--surface-soft);
  color: var(--brand-strong);
}

main {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

.hero {
  min-height: calc(100vh - 70px);
  display: grid;
  align-items: center;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.95fr);
  gap: clamp(26px, 5vw, 64px);
  padding: 36px 0;
}

.hero img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-copy {
  min-width: 0;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 18px;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: 24px;
}

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

p {
  color: var(--muted);
  line-height: 1.75;
}

.hero-actions,
.page-head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-actions {
  margin-top: 26px;
}

.primary-action,
.secondary-action {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.primary-action {
  border: 0;
  padding: 0 18px;
  background: var(--brand);
  color: #fff;
}

.primary-action:hover {
  background: var(--brand-strong);
}

.secondary-action {
  padding: 0 16px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--brand-strong);
}

.metrics-panel,
.result-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 0 0 34px;
}

.metric-card,
.result-strip div,
.check-panel,
.table-wrap {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 10px 26px rgba(19, 43, 39, 0.06);
}

.metric-card,
.result-strip div {
  padding: 18px;
}

.metric-card span,
.result-strip span {
  display: block;
  margin-bottom: 9px;
  color: var(--muted);
  font-size: 13px;
}

.metric-card strong,
.result-strip strong {
  display: block;
  font-size: clamp(24px, 4vw, 34px);
  line-height: 1;
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
  gap: 24px;
  padding-bottom: 54px;
}

.step-list {
  display: grid;
  gap: 12px;
}

.step-list article {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.step-list article > span {
  width: 36px;
  height: 36px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  background: var(--surface-soft);
  color: var(--brand-strong);
  font-weight: 900;
}

.step-list p,
.check-panel p {
  margin-bottom: 0;
}

.check-panel {
  padding: 20px;
}

.check-panel ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.8;
}

.page {
  padding: 46px 0 60px;
}

.page-head {
  display: block;
  max-width: 860px;
  margin-bottom: 28px;
}

.page-head .primary-action {
  margin-top: 10px;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.image-grid figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  box-shadow: 0 10px 26px rgba(19, 43, 39, 0.06);
}

.image-grid img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.image-grid figcaption {
  padding: 12px 14px;
  color: var(--muted);
  font-size: 14px;
}

.table-wrap {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

th,
td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

th {
  color: var(--brand-strong);
  font-size: 13px;
}

td {
  color: var(--muted);
}

tbody tr:last-child td {
  border-bottom: 0;
}

.bars {
  display: grid;
  gap: 10px;
}

.bar-row {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) 88px;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 14px;
}

.bar-track {
  height: 18px;
  overflow: hidden;
  border-radius: 999px;
  background: #e3e9e5;
}

.bar-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--brand), var(--warning), var(--accent));
}

.footer {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 26px 0 34px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 860px) {
  .topbar,
  .footer {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .hero {
    min-height: 0;
  }

  .metrics-panel,
  .result-strip,
  .image-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  main,
  .footer {
    width: min(100% - 24px, 1180px);
  }

  .topbar {
    padding: 12px;
  }

  .nav a {
    padding: 7px 8px;
  }

  .metrics-panel,
  .result-strip,
  .image-grid {
    grid-template-columns: 1fr;
  }

  .bar-row {
    grid-template-columns: 42px minmax(0, 1fr) 74px;
  }
}