:root {
  --bg: #f7f0e6;
  --paper: rgba(255, 252, 247, 0.86);
  --ink: #182126;
  --muted: #5b605f;
  --accent: #c46a2f;
  --forest: #26443f;
  --line: rgba(24, 33, 38, 0.1);
  --shadow: 0 20px 60px rgba(37, 30, 21, 0.1);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --container: 860px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Avenir Next", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    sans-serif;
  background:
    radial-gradient(circle at top left, rgba(196, 106, 47, 0.14), transparent 28%),
    linear-gradient(180deg, #f8f2e8 0%, #f3e9d7 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

.article-shell {
  width: min(calc(100% - 24px), var(--container));
  margin: 0 auto;
  padding: 28px 0 72px;
}

.article-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 16px 22px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 251, 244, 0.7);
  backdrop-filter: blur(18px);
  position: sticky;
  top: 18px;
  z-index: 10;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  overflow: hidden;
  display: grid;
  place-items: center;
  background: rgba(24, 33, 38, 0.08);
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-copy {
  display: grid;
  gap: 2px;
}

.brand-copy strong,
.article-hero h1,
.article-section h2,
.article-next h2 {
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
}

.brand-copy strong {
  font-size: 0.96rem;
}

.brand-copy span,
.back-link,
.article-kicker,
.article-meta,
.article-lead,
.article-section p,
.article-list li,
.article-next p {
  color: var(--muted);
}

.back-link {
  font-size: 0.92rem;
}

.article-main {
  display: grid;
  gap: 28px;
  margin-top: 28px;
}

.article-hero,
.article-section,
.article-next {
  padding: clamp(24px, 4vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--paper);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.article-kicker {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
}

.article-hero h1 {
  margin: 14px 0 0;
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1.02;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
  font-size: 0.92rem;
}

.article-lead {
  margin: 18px 0 0;
  font-size: 1.05rem;
  line-height: 1.8;
  max-width: 42rem;
}

.article-section h2,
.article-next h2 {
  margin: 0 0 14px;
  font-size: 1.5rem;
}

.article-section p {
  margin: 0 0 14px;
  line-height: 1.85;
}

.article-section strong {
  color: var(--ink);
  font-weight: 700;
}

.article-section p:last-child,
.article-list li:last-child {
  margin-bottom: 0;
}

.article-list {
  margin: 0;
  padding-left: 20px;
}

.article-list li {
  margin-bottom: 10px;
  line-height: 1.75;
}

.article-next a {
  color: var(--forest);
  font-weight: 600;
}

@media (max-width: 760px) {
  .article-header {
    flex-direction: column;
    align-items: stretch;
    border-radius: 26px;
  }

  .article-hero h1 {
    font-size: clamp(1.8rem, 8vw, 2.4rem);
  }
}