:root {
  --paper: #F7F5F1;
  --ink: #1F1F1F;
  --muted: #A9A29C;
  --line: #D6CFC7;
  --accent: #E6B7A8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "SF Pro Rounded", "SF Pro Text", -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}

.paper {
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(rgba(169, 162, 156, 0.18) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 1;
}

.hero {
  padding: 96px 0 64px;
  text-align: left;
}

.logo {
  width: 200px;
  height: 200px;
  object-fit: cover;
  border-radius: 24px;
  border: 1px solid var(--line);
  box-shadow: 0 10px 24px rgba(0,0,0,0.08);
  background: rgba(255,255,255,0.6);
  padding: 8px;
  margin-bottom: 16px;
}

h1, h2, h3 {
  font-weight: 600;
  margin: 0 0 16px;
}

h1 {
  font-size: 42px;
  letter-spacing: 0.02em;
}

.lead {
  font-size: 18px;
  color: #3A3A3A;
  max-width: 680px;
  margin-bottom: 28px;
}

.cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
  transition: all 0.2s ease;
  background: rgba(255, 255, 255, 0.6);
}

.btn.primary {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

.note {
  color: var(--muted);
  font-size: 14px;
}

.section {
  padding: 72px 0 56px;
  border-top: 1px solid rgba(214, 207, 199, 0.6);
  margin-top: 16px;
}

.grid {
  display: grid;
  gap: 18px;
}

.grid.two { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid.three { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.grid.four { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }

.card {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.55);
}

.card .icon {
  font-size: 22px;
  margin-bottom: 12px;
  color: var(--accent);
}

.image-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.6);
}

.image-card img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 14px;
  border: 1px solid rgba(214, 207, 199, 0.8);
}

.link-card {
  display: block;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  color: var(--ink);
  position: relative;
  transition: all 0.2s ease;
  border-right: 4px solid var(--accent);
}

.link-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

.link-title {
  font-weight: 600;
  margin-bottom: 6px;
}

.link-desc {
  color: var(--muted);
  font-size: 14px;
}

.link-cta {
  margin-top: 10px;
  font-size: 13px;
  color: var(--ink);
  opacity: 0.7;
}

.mini {
  padding: 16px;
  border: 1px dashed var(--line);
  border-radius: 14px;
  text-align: center;
  background: rgba(255, 255, 255, 0.5);
}

.symbol {
  font-size: 20px;
  margin-bottom: 6px;
  color: var(--accent);
}

.label { font-size: 13px; color: var(--muted); }

.steps {
  margin: 0;
  padding-left: 18px;
  color: #3A3A3A;
}

.quote {
  padding: 24px;
  border-left: 3px solid var(--accent);
  background: rgba(255, 255, 255, 0.55);
  border-radius: 12px;
  margin: 16px 0;
}

.quote p { margin: 0 0 8px; font-size: 18px; }
.quote span { color: var(--muted); font-size: 13px; }

.footer {
  padding: 48px 0 64px;
  text-align: left;
  color: var(--muted);
}

.footer .links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.footer a { color: var(--ink); text-decoration: none; }
.footer a:hover { text-decoration: underline; }

@media (max-width: 640px) {
  h1 { font-size: 30px; }
  .hero { padding: 64px 0 48px; }
  .lead { font-size: 16px; }
  .logo { width: 140px; height: 140px; }
  .cta { gap: 8px; }
  .section { padding: 72px 0 40px; margin-top: 12px; }
  .section h2 { margin-top: 16px; }
  .quote-section { padding: 88px 0 88px; }
  .quote { margin: 24px 0; }
  .image-card { padding: 12px; }
  .grid.two { grid-template-columns: 1fr; }
  .container { padding: 0 22px; }
}