:root {
  --bg: #f7f4eb;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-strong: #fffdf7;
  --text: #18212b;
  --muted: #5b6674;
  --line: rgba(24, 33, 43, 0.11);
  --brand: #117864;
  --brand-deep: #0e5a4b;
  --accent: #d7ede8;
  --warm: #f2e5c7;
  --shadow: 0 24px 70px rgba(24, 33, 43, 0.1);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --wrap: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Avenir Next", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(17, 120, 100, 0.12), transparent 32%),
    radial-gradient(circle at top right, rgba(242, 229, 199, 0.8), transparent 28%),
    linear-gradient(180deg, #f8f6ef 0%, #f7f4eb 52%, #fcfbf7 100%);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  background-image:
    linear-gradient(rgba(24, 33, 43, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(24, 33, 43, 0.025) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), rgba(0, 0, 0, 0.15));
}

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

img {
  max-width: 100%;
  display: block;
}

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

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  padding-top: 18px;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 18px;
  border: 1px solid rgba(255, 255, 255, 0.75);
  border-radius: 999px;
  background: rgba(255, 253, 247, 0.76);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 20px;
  font-weight: 800;
  color: white;
  background: linear-gradient(135deg, var(--brand), #24a189);
}

.brand-copy strong,
.brand-copy span {
  display: block;
}

.brand-copy strong {
  font-size: 0.98rem;
  line-height: 1.1;
}

.brand-copy span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.82rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 10px 18px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  color: var(--muted);
  font-size: 0.95rem;
}

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

.hero {
  padding: 56px 0 36px;
}

.hero-grid,
.split-grid {
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 1.18fr) minmax(320px, 0.82fr);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border: 1px solid rgba(17, 120, 100, 0.18);
  border-radius: 999px;
  color: var(--brand-deep);
  background: rgba(215, 237, 232, 0.72);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.hero h1,
.section-head h2,
.panel h2,
.faq-head h2 {
  margin: 18px 0 0;
  letter-spacing: -0.03em;
}

.hero h1 {
  max-width: 13ch;
  font-size: clamp(2.6rem, 5.4vw, 5.1rem);
  line-height: 0.98;
}

.hero p.lead,
.section-head p,
.panel p,
.faq-list p,
.card p,
.outline-list li,
.metric p {
  color: var(--muted);
  line-height: 1.8;
}

.hero p.lead {
  max-width: 760px;
  margin: 20px 0 0;
  font-size: 1.08rem;
}

.hero-note {
  margin-top: 20px;
  padding: 16px 18px;
  border-left: 4px solid #c08d1b;
  border-radius: 16px;
  background: rgba(255, 244, 214, 0.78);
  color: #6a4a00;
  box-shadow: 0 16px 40px rgba(192, 141, 27, 0.12);
}

.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  color: var(--brand-deep);
  font-weight: 700;
}

.text-link:hover {
  background: rgba(215, 237, 232, 0.74);
}

.hero-tags,
.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.hero-tags li,
.chip-list li {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(24, 33, 43, 0.08);
  background: rgba(255, 255, 255, 0.68);
  color: var(--muted);
  font-size: 0.92rem;
}

.panel,
.card,
.metric,
.faq-item,
.notice,
.timeline-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.panel {
  padding: 28px;
  position: relative;
  overflow: hidden;
}

.panel::before {
  position: absolute;
  inset: auto -80px -60px auto;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  content: "";
  background: radial-gradient(circle, rgba(17, 120, 100, 0.18), transparent 68%);
}

.mini-label {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(17, 120, 100, 0.1);
  color: var(--brand-deep);
  font-size: 0.82rem;
  font-weight: 700;
}

.panel h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.8rem);
  line-height: 1.06;
}

.data-grid,
.card-grid,
.metric-grid,
.faq-grid,
.timeline {
  display: grid;
  gap: 18px;
}

.data-grid {
  margin-top: 22px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.data-item {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.7);
}

.data-item strong {
  display: block;
  font-size: 0.82rem;
  color: var(--muted);
}

.data-item span {
  display: block;
  margin-top: 8px;
  font-size: 1.2rem;
  font-weight: 800;
}

.section {
  padding: 30px 0;
}

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

.section-head h2,
.faq-head h2 {
  font-size: clamp(2rem, 3.9vw, 3.4rem);
  line-height: 1.02;
}

.section-head p {
  max-width: 760px;
  margin-top: 14px;
  font-size: 1rem;
}

.card-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  padding: 24px;
}

.card strong {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--accent);
  color: var(--brand-deep);
  font-size: 0.95rem;
}

.card h3,
.faq-item h3,
.timeline-item h3 {
  margin: 16px 0 8px;
  font-size: 1.2rem;
}

.band {
  padding: 28px 0;
}

.band-box {
  display: grid;
  gap: 22px;
  grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
  padding: 28px;
  border-radius: 34px;
  background: linear-gradient(135deg, #10382f, #0f5f4f 58%, #167663);
  color: white;
  box-shadow: 0 28px 80px rgba(16, 56, 47, 0.22);
}

.band-box p,
.band-box li {
  color: rgba(255, 255, 255, 0.84);
}

.outline-list {
  margin: 0;
  padding-left: 18px;
}

.outline-list li + li {
  margin-top: 8px;
}

.metric-grid,
.faq-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.metric,
.faq-item {
  padding: 24px;
}

.metric-value {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1;
  font-weight: 800;
  color: var(--brand-deep);
}

.timeline {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.timeline-item {
  padding: 24px;
}

.timeline-item span {
  display: inline-flex;
  margin-bottom: 10px;
  font-size: 0.84rem;
  font-weight: 800;
  color: var(--brand-deep);
}

.notice {
  padding: 22px 24px;
  background: rgba(255, 253, 247, 0.92);
}

.faq-head {
  margin-bottom: 22px;
}

.faq-stack {
  display: grid;
  gap: 16px;
}

.faq-stack details {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.76);
  padding: 18px 20px;
  box-shadow: var(--shadow);
}

.faq-stack summary {
  cursor: pointer;
  list-style: none;
  font-weight: 800;
}

.faq-stack summary::-webkit-details-marker {
  display: none;
}

.faq-stack p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.8;
}

.footer {
  padding: 34px 0 44px;
}

.footer-box {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.footer-copy p,
.footer-nav a {
  color: var(--muted);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
}

@media (max-width: 980px) {
  .hero-grid,
  .split-grid,
  .band-box,
  .card-grid,
  .metric-grid,
  .faq-grid,
  .timeline {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    max-width: none;
  }
}

@media (max-width: 720px) {
  .topbar {
    position: static;
    padding-top: 14px;
  }

  .topbar-inner,
  .footer-box {
    border-radius: 28px;
    flex-direction: column;
    align-items: flex-start;
  }

  .nav {
    justify-content: flex-start;
  }

  .hero {
    padding-top: 30px;
  }

  .panel,
  .card,
  .metric,
  .faq-item,
  .timeline-item,
  .notice {
    padding: 20px;
  }

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