/* 观相 · 文章页样式（SEO 内容区，阅读优先） */

.article-page {
  min-height: 100vh;
}

.article-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px clamp(20px, 4vw, 52px);
  background: linear-gradient(
    180deg,
    rgba(16, 20, 27, 0.92) 0%,
    rgba(16, 20, 27, 0.8) 55%,
    rgba(16, 20, 27, 0) 100%
  );
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.article-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--paper);
  text-decoration: none;
}
.article-brand .topbar__mark {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  box-shadow: 0 8px 18px rgba(150, 40, 30, 0.4);
}
.article-brand__name {
  font-family: var(--kaiti);
  font-size: 18px;
  letter-spacing: 0.2em;
}
.article-back {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: rgba(245, 242, 234, 0.72);
  text-decoration: none;
  padding: 8px 0;
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-size: 0 1px;
  background-position: 0 100%;
  transition: background-size 0.3s var(--ease), color 0.3s ease;
}
.article-back:hover {
  color: var(--paper);
  background-size: 100% 1px;
}

.article-wrap {
  position: relative;
  z-index: 3;
  max-width: 780px;
  margin: 0 auto;
  padding: 128px clamp(18px, 4vw, 44px) 80px;
}
.article-card {
  background: var(--paper);
  color: var(--ink);
  border-radius: 28px;
  border: 1px solid rgba(35, 35, 35, 0.055);
  box-shadow: 0 44px 110px rgba(0, 0, 0, 0.5);
  padding: clamp(34px, 6vw, 58px);
}
.article-card__meta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
}
.article-card h1 {
  margin: 16px 0 0;
  font-family: "Epilogue", var(--sans);
  font-weight: 800;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-wrap: balance;
}
.article-card__lede {
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
}
.article-card h2 {
  margin: 34px 0 0;
  font-family: var(--serif);
  font-weight: 900;
  font-size: 21px;
  color: var(--ink);
}
.article-card p {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink-soft);
}
.article-card ul,
.article-card ol {
  margin: 14px 0 0;
  padding-left: 22px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}
.article-card li {
  margin: 6px 0;
}
.article-card a {
  color: var(--cinnabar);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-card a:hover {
  color: #8f241c;
}
.article-cta {
  margin: 36px 0 0;
  padding: 20px 24px;
  background: var(--paper-deep);
  border: 1px solid rgba(35, 35, 35, 0.1);
  border-radius: 16px;
  text-align: center;
}
.article-cta p {
  margin: 0;
  font-size: 15px;
  color: var(--ink-soft);
}
.article-cta a {
  display: inline-block;
  margin-top: 14px;
  padding: 12px 26px;
  border-radius: 6px;
  background: var(--ink);
  color: var(--paper);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: background 0.25s ease, transform 0.25s var(--ease);
}
.article-cta a:hover {
  background: var(--cinnabar);
  transform: translateY(-1px);
}

/* 文章索引 */
.article-index {
  display: grid;
  gap: 16px;
  margin-top: 34px;
}
.article-index a {
  display: block;
  padding: 22px 24px;
  background: var(--paper-deep);
  border: 1px solid rgba(35, 35, 35, 0.1);
  border-radius: 16px;
  color: var(--ink);
  text-decoration: none;
  transition: transform 0.3s var(--ease), border-color 0.3s ease;
}
.article-index a:hover {
  transform: translateY(-2px);
  border-color: rgba(169, 123, 47, 0.4);
}
.article-index b {
  display: block;
  font-family: var(--serif);
  font-size: 17px;
}
.article-index span {
  display: block;
  margin-top: 6px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

@media (max-width: 720px) {
  .article-wrap {
    padding-top: 104px;
  }
  .article-card {
    padding: 28px 22px;
  }
}