:root {
  --bg: #f7f4ec;
  --paper: #fffdf8;
  --ink: #1f2933;
  --muted: #637083;
  --line: #e4ded2;
  --accent: #3d5a80;
  --accent-2: #8c5e3c;
  --soft: #edf2f7;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans", "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255,253,248,.94);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
}

.nav {
  max-width: 1160px;
  margin: 0 auto;
  padding: 16px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  font-weight: 780;
  letter-spacing: .02em;
  color: var(--ink);
  white-space: nowrap;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 14px;
}

.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--accent); }

.lang-switch {
  border: 1px solid var(--line);
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--paper);
}

.hero {
  max-width: 1160px;
  margin: 0 auto;
  padding: 72px 22px 42px;
}

.eyebrow {
  color: var(--accent-2);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: 13px;
}

h1 {
  font-size: clamp(38px, 6vw, 72px);
  line-height: 1.05;
  margin: 14px 0 22px;
  letter-spacing: -.04em;
}

.subtitle {
  max-width: 880px;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 23px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-block;
  border: 1px solid var(--accent);
  padding: 11px 16px;
  border-radius: 999px;
  color: var(--paper);
  background: var(--accent);
  font-weight: 650;
}

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

main {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 22px 80px;
}

.page { max-width: 940px; padding-top: 42px; }
.page h1 { font-size: clamp(34px, 4vw, 54px); }

h2 { font-size: 28px; margin: 42px 0 12px; letter-spacing: -.02em; }
h3 { font-size: 20px; margin: 26px 0 8px; }

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 18px;
  margin-top: 34px;
}

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px;
  min-height: 170px;
}
.card h2, .card h3 { margin-top: 0; }
.card p { color: var(--muted); }

.notice {
  background: var(--paper);
  border-left: 4px solid var(--accent-2);
  padding: 18px 20px;
  border-radius: 12px;
  margin: 28px 0;
}

.visual-placeholder, .video-placeholder {
  background: linear-gradient(135deg, #fffdf8, #edf2f7);
  border: 1px dashed #b8afa2;
  border-radius: 22px;
  padding: 34px;
  margin: 28px 0;
  color: var(--muted);
}

.visual-placeholder strong, .video-placeholder strong { color: var(--ink); }

.table-wrap {
  overflow-x: auto;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
  margin: 24px 0;
}

table { border-collapse: collapse; width: 100%; min-width: 760px; font-size: 14px; }
th, td { border-bottom: 1px solid var(--line); padding: 13px 14px; text-align: left; vertical-align: top; }
th { background: #f3eee5; font-weight: 720; }
tr:last-child td { border-bottom: 0; }

.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--soft);
  color: var(--accent);
  font-size: 12px;
  font-weight: 650;
}

.timeline { display: grid; gap: 14px; margin: 26px 0; }
.step { background: var(--paper); border: 1px solid var(--line); border-radius: 16px; padding: 18px 20px; }
.step strong { color: var(--accent); }

.footer { border-top: 1px solid var(--line); color: var(--muted); padding: 26px 22px; font-size: 14px; }
.footer-inner { max-width: 1160px; margin: 0 auto; }

@media (max-width: 900px) {
  .nav { align-items: flex-start; flex-direction: column; }
  .grid { grid-template-columns: 1fr; }
  .hero { padding-top: 46px; }
}