:root {
  --paper: #f8f5ee;
  --card: #fffdf7;
  --ink: #2e2a25;
  --muted: #746a5d;
  --red: #7b1f1f;
  --red-dark: #5c1515;
  --gold: #b89b5e;
  --line: #e3d8c6;
  --shadow: rgba(62, 42, 20, 0.08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(184,155,94,.12), transparent 32rem),
    var(--paper);
  color: var(--ink);
  font-family: "Noto Serif TC", "Noto Serif SC", "Noto Serif", "Times New Roman", serif;
  line-height: 1.82;
  letter-spacing: .01em;
}

a {
  color: var(--red);
  text-decoration: none;
}

a:hover { text-decoration: underline; }

.site-header {
  background: rgba(248, 245, 238, .94);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
}

.nav {
  max-width: 1080px;
  margin: 0 auto;
  padding: 15px 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--red-dark);
  font-weight: 700;
  letter-spacing: .08em;
  white-space: nowrap;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border: 1px solid var(--gold);
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-size: 15px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 15px;
}

.lang {
  display: inline-flex;
  gap: 8px;
  padding-left: 14px;
  border-left: 1px solid var(--line);
}

.lang a[aria-current="true"] {
  color: var(--ink);
  font-weight: 700;
}

.hero {
  max-width: 1080px;
  margin: 0 auto;
  padding: 86px 22px 58px;
}

.hero-card {
  text-align: center;
  padding: 56px 28px;
  background: linear-gradient(180deg, rgba(255,253,247,.95), rgba(255,253,247,.74));
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: 0 18px 45px var(--shadow);
}

.logo-mark {
  margin: 0 auto 20px;
  width: 54px;
  height: 54px;
  border-radius: 999px;
  border: 1px solid var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-size: 26px;
}

.kicker {
  color: var(--gold);
  font-size: 13px;
  letter-spacing: .24em;
  text-transform: uppercase;
  font-weight: 700;
}

h1 {
  margin: 14px 0 12px;
  color: var(--red-dark);
  font-size: clamp(40px, 8vw, 76px);
  line-height: 1.08;
  letter-spacing: .05em;
}

.subtitle {
  font-size: clamp(22px, 4vw, 34px);
  color: var(--ink);
  margin: 0;
  letter-spacing: .12em;
}

.rule {
  width: min(260px, 70%);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  margin: 28px auto;
}

.lead {
  max-width: 720px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 19px;
}

.actions {
  margin-top: 32px;
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.button {
  display: inline-block;
  border: 1px solid var(--red);
  border-radius: 999px;
  padding: 10px 18px;
  background: var(--red);
  color: #fff;
  font-weight: 700;
}

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

.sections {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 22px 76px;
}

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

.tile, .content-card {
  background: rgba(255,253,247,.86);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 10px 28px var(--shadow);
}

.tile {
  padding: 24px;
}

.tile h2, .tile h3 {
  margin-top: 0;
  color: var(--red-dark);
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 42px 22px 82px;
}

.content-card {
  padding: clamp(24px, 5vw, 48px);
}

.content-card h1 {
  font-size: clamp(34px, 6vw, 56px);
  text-align: left;
}

.content-card h2 {
  margin-top: 42px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--red-dark);
  font-size: 25px;
}

.content-card h3 {
  color: var(--red-dark);
  margin-top: 28px;
  font-size: 20px;
}

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

.notice {
  border-left: 4px solid var(--gold);
  background: #fff7e8;
  padding: 14px 16px;
  border-radius: 10px;
  color: #4d4336;
}

ul { padding-left: 1.35em; }

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  text-align: center;
  padding: 30px 22px;
  font-size: 14px;
}

@media (max-width: 820px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }
  .nav-links {
    gap: 12px;
  }
  .lang {
    border-left: 0;
    padding-left: 0;
  }
  .hero {
    padding: 44px 16px 32px;
  }
  .grid {
    grid-template-columns: 1fr;
  }
}

.quote {
  font-size: clamp(22px, 4vw, 34px);
  color: var(--red-dark);
  margin: 20px auto 0;
  max-width: 760px;
  letter-spacing: .08em;
}

.small-list {
  margin-top: 18px;
}

.product-note {
  margin-top: 22px;
  color: var(--muted);
}

.chapter-title {
  margin-top: 42px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--red-dark);
  font-size: 25px;
}

.step-list{counter-reset:step;list-style:none;padding-left:0}
.step-list li{counter-increment:step;margin:12px 0;padding:14px 16px 14px 52px;background:rgba(255,253,247,.75);border:1px solid var(--line);border-radius:14px;position:relative}
.step-list li::before{content:counter(step);position:absolute;left:16px;top:14px;width:24px;height:24px;border-radius:999px;background:var(--red);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700}