:root {
  --red: #9a1d20;
  --red-dark: #6f1115;
  --gold: #c9a05f;
  --ink: #231417;
  --muted: #6b5b58;
  --line: #ead9bd;
  --paper: #fffaf2;
  --soft: #f6eee1;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  letter-spacing: 0;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  max-width: 1240px;
  margin: 0 auto;
  padding: 16px 20px;
  background: rgba(255, 250, 242, 0.94);
}
.brand { display: inline-flex; align-items: center; gap: 12px; }
.mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 8px;
  background: var(--red);
  color: var(--gold);
  font-weight: 800;
}
.brand strong { display: block; font-size: 17px; }
.brand small { color: var(--muted); font-size: 12px; }
nav { display: flex; gap: 6px; }
nav a { padding: 9px 14px; border-radius: 6px; font-weight: 600; color: #4c3836; }
nav a:hover { background: var(--soft); color: var(--red); }
.hero {
  min-height: 72vh;
  display: flex;
  align-items: center;
  padding: 64px 20px;
  background: linear-gradient(120deg, #3b0d10, #7d161a);
  color: #fff;
}
.hero-inner, .inner { width: 100%; max-width: 1240px; margin: 0 auto; }
.eyebrow {
  display: inline-block;
  margin-bottom: 16px;
  padding: 7px 12px;
  border: 1px solid rgba(242, 216, 164, 0.5);
  border-radius: 999px;
  color: var(--gold);
  font-size: 13px;
}
.hero h1 { margin: 0; font-size: 52px; line-height: 1.14; letter-spacing: 0; }
.hero p { margin: 18px 0 0; max-width: 620px; color: rgba(255, 255, 255, 0.86); font-size: 17px; }
.hero-actions { display: flex; gap: 12px; margin-top: 30px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 8px;
  font-weight: 700;
}
.btn.primary { background: var(--red); color: #fff; box-shadow: 0 8px 20px rgba(154, 29, 32, 0.3); }
.btn.ghost { border: 1px solid rgba(255, 255, 255, 0.5); color: #fff; }
.band { padding: 64px 20px; }
.band.dark { background: var(--ink); color: #fff; }
.band h2 { margin: 0 0 24px; font-size: 30px; letter-spacing: 0; }
.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.cell {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 20px;
}
.cell strong { display: block; color: var(--red); margin-bottom: 8px; }
.cell span { color: var(--muted); font-size: 14px; }
.products { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.product {
  background: #fff;
  border-radius: 8px;
  padding: 14px;
  color: var(--ink);
}
.product img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 6px; }
.product h3 { margin: 14px 0 6px; font-size: 18px; }
.product p { margin: 0 0 8px; color: var(--muted); font-size: 14px; }
.product strong { color: var(--red); font-size: 18px; }
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.steps div {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 18px 12px;
  text-align: center;
}
.steps strong { display: block; color: var(--red); font-size: 24px; }
.steps span { font-size: 14px; font-weight: 600; }
.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact p { color: var(--muted); }
form {
  display: grid;
  gap: 14px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
}
label { display: grid; gap: 6px; font-size: 14px; font-weight: 600; }
input, textarea {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 11px 12px;
  font: inherit;
  background: var(--paper);
}
.form-note { margin: 0; color: var(--red); font-weight: 700; }
footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  justify-content: space-between;
  padding: 22px 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}
@media (max-width: 860px) {
  nav { display: none; }
  .hero h1 { font-size: 38px; }
  .grid { grid-template-columns: 1fr 1fr; }
  .products { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .contact { grid-template-columns: 1fr; }
}