@font-face {
  font-family: 'Noto Serif SC';
  src: url('/assets/fonts/noto-serif-sc-regular.woff2') format('woff2');
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: 'Noto Serif SC';
  src: url('/assets/fonts/noto-serif-sc-bold.woff2') format('woff2');
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: 'SlideYouran';
  src: url('/assets/fonts/slideyouran-subset.woff2') format('woff2');
  font-weight: 400;
  font-display: swap;
}

:root {
  --bg-primary: #f6f1e8;
  --bg-secondary: #eee6d8;
  --bg-glass: #fbf7ef;
  --text-primary: #2f2a22;
  --text-secondary: #7d7263;
  --text-faint: #a1947f;
  --accent: #b45309;
  --accent-hover: #96430a;
  --seal-red: #b03a2e;
  --border-color: rgba(121, 95, 60, 0.22);
  --border-strong: rgba(121, 95, 60, 0.34);
  --rule-color: rgba(121, 95, 60, 0.16);
  --shadow: 0 10px 30px rgba(96, 74, 42, 0.08);
  --radius: 14px;
  --radius-sm: 8px;
  --font-serif: 'Noto Serif SC', 'Songti SC', 'SimSun', serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-hand: 'SlideYouran', 'STKaiti', 'KaiTi', cursive;
  --max: 1040px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  background-image:
    radial-gradient(circle at 18% 12%, rgba(180, 83, 9, 0.045), transparent 42%),
    radial-gradient(circle at 82% 6%, rgba(138, 115, 85, 0.06), transparent 36%),
    repeating-linear-gradient(0deg, rgba(121, 95, 60, 0.028) 0 1px, transparent 1px 4px);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

img { max-width: 100%; display: block; }

.shell {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 8px 14px;
  background: var(--bg-glass);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  z-index: 100;
}
.skip-link:focus { left: 16px; top: 16px; }

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(246, 241, 232, 0.82);
  border-bottom: 1px solid var(--rule-color);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  font-family: var(--font-serif);
  font-weight: 700;
  letter-spacing: 0.06em;
}
.brand:hover { color: var(--text-primary); }
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--seal-red);
  border-radius: 6px;
  color: var(--seal-red);
  font-size: 13px;
  line-height: 1;
  letter-spacing: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.site-nav a {
  color: var(--text-secondary);
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 0.92rem;
  transition: background-color 0.18s ease, color 0.18s ease;
}
.site-nav a:hover { background: rgba(180, 83, 9, 0.08); color: var(--accent); }
.site-nav .nav-blog {
  color: #fff;
  background: var(--text-primary);
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 600;
}
.site-nav .nav-blog:hover { background: var(--accent); color: #fff; }

/* ---------- hero ---------- */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 56px;
  align-items: center;
  padding: 76px 0 60px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--text-faint);
  font-size: 0.82rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  font-family: var(--font-serif);
  font-size: clamp(2.1rem, 5vw, 3.1rem);
  line-height: 1.2;
  letter-spacing: 0.01em;
}

.seal {
  display: inline-grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  padding: 4px;
  border: 1px solid var(--seal-red);
  border-radius: 4px;
  color: var(--seal-red);
  font-family: var(--font-serif);
  font-size: 0.7rem;
  font-weight: 700;
  line-height: 1.15;
  text-align: center;
  transform: rotate(-2deg);
}

.signature {
  margin: 18px 0 10px;
  color: var(--accent);
  font-family: var(--font-hand);
  font-size: 1.55rem;
  line-height: 1.5;
}

.bio {
  margin: 0;
  max-width: 34em;
  color: var(--text-secondary);
  font-size: 1.02rem;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 600;
  transition: transform 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); color: #fff; }
.btn-ghost { border-color: var(--border-strong); color: var(--text-primary); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* portrait */

.portrait { justify-self: end; width: min(300px, 74vw); }

.portrait-card {
  position: relative;
  padding: 14px;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transform: rotate(1.6deg);
}
.portrait-card::before {
  content: '';
  position: absolute;
  inset: 6px;
  border: 1px solid var(--rule-color);
  border-radius: 10px;
  pointer-events: none;
}
.portrait-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 9px;
}
.portrait-caption {
  margin: 12px 2px 2px;
  color: var(--text-faint);
  font-family: var(--font-hand);
  font-size: 1rem;
  text-align: center;
}

/* ---------- sections ---------- */

.section { padding: 42px 0; border-top: 1px solid var(--rule-color); }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}
.section-head h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.45rem;
  letter-spacing: 0.04em;
}
.section-head p { margin: 0; color: var(--text-faint); font-size: 0.85rem; }

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

.card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 22px;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  color: var(--text-primary);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.6) inset;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.card:hover {
  transform: translateY(-2px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow);
  color: var(--text-primary);
}
.card-kicker {
  color: var(--text-faint);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.card h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.1rem;
}
.card p { margin: 0; color: var(--text-secondary); font-size: 0.9rem; }
.card-arrow { margin-top: auto; color: var(--accent); font-size: 0.88rem; font-weight: 600; }

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 48px;
}
.about-text p { margin: 0 0 14px; color: var(--text-secondary); }
.about-text p:last-child { margin-bottom: 0; }

.facts { margin: 0; padding: 0; list-style: none; }
.facts li {
  display: flex;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--rule-color);
  font-size: 0.94rem;
}
.facts li:last-child { border-bottom: 0; }
.facts dt, .facts .label { flex: 0 0 4.5em; color: var(--text-faint); }
.facts .value { color: var(--text-secondary); }

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--rule-color);
  padding: 30px 0 42px;
  color: var(--text-faint);
  font-size: 0.85rem;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-links { display: flex; gap: 18px; }
.footer-links a { color: var(--text-secondary); }
.footer-links a:hover { color: var(--accent); }

/* ---------- 404 ---------- */

.not-found {
  min-height: 62vh;
  display: grid;
  place-content: center;
  text-align: center;
  gap: 10px;
  padding: 60px 0;
}
.not-found h1 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 2.2rem;
}
.not-found p { margin: 0; color: var(--text-secondary); }
.not-found .btn { margin: 18px auto 0; }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 40px; padding: 52px 0 44px; }
  .portrait { justify-self: start; order: -1; width: 190px; }
  .about-grid { grid-template-columns: 1fr; gap: 28px; }
  .cards { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .shell { width: calc(100% - 32px); }
  .site-nav a:not(.nav-blog) { display: none; }
  .hero h1 { font-size: 2rem; }
  .signature { font-size: 1.3rem; }
  .portrait { width: 160px; }
  .portrait-caption { font-size: 0.9rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}