:root {
  color-scheme: light;
  --ink: #17202a;
  --muted: #667085;
  --line: #e6e9ef;
  --paper: #ffffff;
  --soft: #f6f8f4;
  --warm: #fff7ea;
  --brand: #1f7a58;
  --brand-dark: #13563d;
  --gold: #b9812f;
  --danger: #b42318;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: #fff;
}

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

.test-ribbon {
  background: #102a43;
  color: #fff;
  text-align: center;
  padding: 9px 16px;
  font-size: 14px;
  letter-spacing: 0;
}

.test-ribbon strong { color: #ffe08a; }

header {
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 0 clamp(18px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .94);
  position: sticky;
  top: 0;
  z-index: 5;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 160px;
}

.brand strong {
  color: var(--brand);
  font-size: 20px;
  line-height: 1.1;
}

.brand span {
  color: var(--danger);
  font-size: 12px;
  font-weight: 700;
}

nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 26px);
  color: var(--muted);
  font-size: 14px;
}

nav a.active,
nav a:hover {
  color: var(--brand);
  font-weight: 700;
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
  gap: clamp(30px, 5vw, 70px);
  align-items: center;
  padding: clamp(42px, 7vw, 86px) 0 42px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--danger);
  background: #fff1f0;
  border: 1px solid #ffd7d3;
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 13px;
  font-weight: 700;
}

h1 {
  margin: 18px 0 16px;
  font-size: clamp(36px, 5vw, 62px);
  line-height: 1.06;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 18px;
  font-size: clamp(24px, 3vw, 34px);
  letter-spacing: 0;
}

h3 {
  margin: 0 0 8px;
  font-size: 19px;
}

p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 10px 18px;
  border-radius: 6px;
  border: 1px solid var(--brand);
  background: var(--brand);
  color: #fff;
  font-weight: 700;
}

.button.secondary {
  background: transparent;
  color: var(--brand);
}

.notice {
  margin-top: 22px;
  border: 1px solid #ffd7d3;
  background: #fff8f7;
  color: #7a271a;
  padding: 14px 16px;
  border-radius: 8px;
  line-height: 1.7;
}

.showcase {
  min-height: 430px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 18px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 70% 18%, rgba(185, 129, 47, .18), transparent 28%),
    linear-gradient(155deg, #fff 0%, #eff6eb 100%);
}

.tile {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  padding: 16px;
  min-height: 150px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  box-shadow: 0 12px 28px rgba(30, 41, 59, .08);
}

.tile .price,
.card .price {
  color: var(--gold);
  font-size: 20px;
  font-weight: 800;
}

.section {
  padding: 36px 0;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 16px;
  min-height: 210px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card:hover {
  border-color: rgba(31, 122, 88, .5);
  box-shadow: 0 14px 32px rgba(20, 32, 44, .08);
}

.tag {
  width: fit-content;
  border-radius: 999px;
  background: var(--soft);
  color: var(--brand-dark);
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 700;
}

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

.band {
  background: var(--soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 36px 0;
  margin: 34px 0;
}

.detail {
  display: grid;
  grid-template-columns: minmax(320px, .9fr) minmax(0, 1.1fr);
  gap: 38px;
  padding: 44px 0;
}

.product-visual {
  min-height: 420px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background:
    linear-gradient(145deg, rgba(31, 122, 88, .13), transparent 38%),
    radial-gradient(circle at 70% 70%, rgba(185, 129, 47, .22), transparent 28%),
    #fffdf8;
  display: flex;
  align-items: flex-end;
  padding: 22px;
}

.specs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 22px 0;
}

.specs div {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
}

.steps {
  counter-reset: step;
  display: grid;
  gap: 12px;
}

.step {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  background: #fff;
}

.step::before {
  counter-increment: step;
  content: "0" counter(step);
  display: inline-block;
  margin-bottom: 8px;
  color: var(--brand);
  font-weight: 800;
}

footer {
  border-top: 1px solid var(--line);
  padding: 28px clamp(18px, 5vw, 72px);
  color: var(--muted);
  font-size: 14px;
}

footer strong { color: var(--danger); }

@media (max-width: 900px) {
  header {
    height: auto;
    align-items: flex-start;
    flex-direction: column;
    padding-top: 14px;
    padding-bottom: 14px;
  }
  nav { flex-wrap: wrap; }
  .hero,
  .detail {
    grid-template-columns: 1fr;
  }
  .grid,
  .grid.three,
  .grid.two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .grid,
  .grid.three,
  .grid.two,
  .specs {
    grid-template-columns: 1fr;
  }
  .showcase {
    min-height: 300px;
    grid-template-columns: 1fr;
  }
}