:root {
  color-scheme: light;
  --ink: #182124;
  --muted: #607276;
  --line: #dce6e4;
  --paper: #fbfcfa;
  --soft: #eef5f3;
  --teal: #176c69;
  --teal-dark: #0e4549;
  --gold: #d89036;
  --gold-soft: #fff0d8;
  --white: #ffffff;
  --shadow: 0 18px 50px rgba(20, 45, 48, .12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.6;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 64px);
  background: rgba(251, 252, 250, .92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background: var(--teal-dark);
  color: var(--white);
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 16px;
  line-height: 1.2;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
}

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

.nav a {
  padding: 8px 12px;
  border-radius: 6px;
  color: #334346;
  font-size: 14px;
}

.nav a:hover {
  background: var(--soft);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 560px);
  align-items: center;
  gap: clamp(28px, 5vw, 72px);
  min-height: calc(100vh - 72px);
  padding: clamp(32px, 6vw, 86px) clamp(18px, 6vw, 86px) 38px;
  background: linear-gradient(180deg, #ffffff 0%, #f2f7f5 100%);
}

.hero-copy {
  max-width: 680px;
}

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

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  max-width: 12em;
  color: #112b2f;
  font-size: clamp(40px, 6vw, 74px);
  line-height: 1.05;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  color: #173337;
  font-size: clamp(28px, 3.2vw, 44px);
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 10px;
  font-size: 20px;
  line-height: 1.25;
}

.lead {
  max-width: 620px;
  margin: 22px 0 0;
  color: #4f6266;
  font-size: 19px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 11px 18px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.button.primary {
  background: var(--teal);
  color: var(--white);
}

.button.secondary {
  background: var(--white);
  border-color: var(--line);
  color: var(--teal-dark);
}

.button:hover {
  transform: translateY(-1px);
}

.full {
  width: 100%;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 34px 0 0;
}

.hero-stats div {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, .72);
}

.hero-stats dt {
  color: var(--teal-dark);
  font-weight: 900;
}

.hero-stats dd {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.hero-visual {
  width: 100%;
  min-width: 0;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.section {
  padding: clamp(52px, 7vw, 92px) clamp(18px, 6vw, 86px);
}

.section-title {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 28px;
}

.feature-grid,
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature,
.price-card,
.order-form,
.report-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 28px rgba(24, 43, 46, .07);
}

.feature,
.price-card {
  padding: 24px;
}

.feature p,
.price-card p,
.muted {
  color: var(--muted);
}

.icon {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 8px;
  background: var(--gold-soft);
  color: #a46013;
  font-weight: 900;
}

.band {
  background: #eaf3f0;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.timeline li {
  position: relative;
  min-height: 160px;
  padding: 22px;
  border: 1px solid #d2e1dd;
  border-radius: 8px;
  background: #ffffff;
  counter-increment: step;
}

.timeline li::before {
  content: counter(step);
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  margin-bottom: 16px;
  border-radius: 50%;
  background: var(--teal);
  color: #fff;
  font-weight: 900;
}

.timeline strong,
.timeline span {
  display: block;
}

.timeline span {
  margin-top: 8px;
  color: var(--muted);
}

.report-layout {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(320px, 1fr);
  align-items: start;
  gap: 34px;
}

.report-panel {
  padding: 8px;
}

.report-row {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 18px;
  border-bottom: 1px solid var(--line);
}

.report-row:last-child {
  border-bottom: 0;
}

.report-row span {
  color: var(--muted);
}

.report-row b {
  text-align: right;
}

.price-card {
  position: relative;
  display: flex;
  min-height: 300px;
  flex-direction: column;
}

.price-card .button {
  margin-top: auto;
}

.price-card.featured {
  border-color: #e0ae64;
  box-shadow: 0 22px 60px rgba(216, 144, 54, .18);
}

.badge {
  position: absolute;
  top: 16px;
  right: 16px;
  border-radius: 999px;
  background: var(--gold-soft);
  color: #90560d;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 900;
}

.price {
  margin: 16px 0 8px;
  color: var(--teal-dark) !important;
  font-size: 42px;
  font-weight: 900;
  line-height: 1;
}

.order-section {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(320px, 460px);
  gap: 34px;
  background: #f7faf8;
}

.notice-list {
  margin: 24px 0 0;
  padding-left: 20px;
  color: #42565a;
}

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

.order-form {
  display: grid;
  gap: 16px;
  padding: 22px;
}

label {
  display: grid;
  gap: 8px;
  color: #33484c;
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #cfddda;
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 12px 13px;
  font: inherit;
}

textarea {
  resize: vertical;
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.compliance {
  background: #15383d;
  color: #eaf7f4;
}

.compliance h2 {
  color: #fff;
}

.compliance p {
  max-width: 980px;
  color: #c8dcda;
}

.contact {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.contact span {
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 8px;
  padding: 10px 12px;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 22px clamp(18px, 6vw, 86px);
  background: #0f282d;
  color: #d9e8e5;
}

@media (max-width: 920px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    overflow-x: auto;
  }

  .hero,
  .report-layout,
  .order-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual {
    max-height: 420px;
    object-fit: cover;
  }

  .feature-grid,
  .pricing-grid,
  .timeline {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 620px) {
  .brand strong {
    font-size: 14px;
  }

  h1 {
    font-size: 38px;
  }

  .hero-stats,
  .feature-grid,
  .pricing-grid,
  .timeline {
    grid-template-columns: 1fr;
  }

  .section-title {
    align-items: flex-start;
    flex-direction: column;
  }

  .report-row {
    flex-direction: column;
    gap: 6px;
  }

  .report-row b {
    text-align: left;
  }

  .footer {
    flex-direction: column;
  }
}