:root {
  --bg: #f7f4f2;
  --panel: #ffffff;
  --text: #2d3037;
  --muted: #70737d;
  --line: #e8ddd6;
  --tea: #a33428;
  --tea-dark: #742018;
  --gold: #d59b32;
  --ink: #151922;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.72;
}

a {
  color: inherit;
}

.container {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 66px;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 900;
  text-decoration: none;
}

.brand span {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: #fff;
  background: linear-gradient(135deg, var(--tea), var(--gold));
  border-radius: 8px;
}

nav {
  display: flex;
  gap: 20px;
  color: #555b66;
  font-size: 14px;
}

nav a {
  text-decoration: none;
}

nav a:hover {
  color: var(--tea);
}

.hero {
  padding: 78px 0 62px;
  color: white;
  background:
    linear-gradient(135deg, rgba(116, 32, 24, 0.92), rgba(163, 52, 40, 0.84)),
    url("/assets/img/hero.png") center / cover no-repeat;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 36px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 12px;
  color: #ffe7c2;
  font-size: 13px;
  font-weight: 900;
}

.hero h1 {
  margin: 0;
  color: #fff;
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1.1;
  letter-spacing: 0;
}

.hero p {
  max-width: 760px;
  margin: 18px 0 0;
  color: #fff4e8;
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 900;
  text-decoration: none;
}

.btn-primary {
  color: var(--tea-dark);
  background: white;
}

.btn-secondary {
  color: white;
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.34);
}

.update-pill {
  display: inline-flex;
  max-width: 100%;
  margin-top: 22px;
  padding: 8px 12px;
  color: #ffe7c2;
  background: rgba(21, 25, 34, 0.28);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  font-size: 13px;
}

.hero-card {
  padding: 10px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 8px;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.22);
}

.hero-card img,
.article-image {
  display: block;
  width: 100%;
  border-radius: 6px;
}

.hero-card img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.stats {
  margin-top: -28px;
  padding-bottom: 28px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.stat {
  min-height: 104px;
  padding: 20px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 32px rgba(21, 25, 34, 0.08);
}

.stat strong {
  display: block;
  color: var(--tea);
  font-size: 28px;
}

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

.section {
  padding: 58px 0;
}

.section-muted {
  background: #f0e9e4;
  border-block: 1px solid var(--line);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 26px;
}

.section-heading h2,
.page-header h1,
.post-header h1 {
  margin: 0;
  color: var(--ink);
  letter-spacing: 0;
}

.section-heading h2 {
  font-size: 32px;
}

.section-heading p,
.page-header p {
  margin: 8px 0 0;
  color: var(--muted);
}

.post-list {
  display: grid;
  gap: 18px;
}

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

.post-card,
.friend-card,
.side-block,
.post-content {
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(21, 25, 34, 0.05);
}

.post-card,
.friend-card,
.side-block {
  padding: 22px;
}

.post-card h2,
.post-card h3 {
  margin: 10px 0 8px;
  color: var(--ink);
  line-height: 1.35;
}

.post-card a,
.friend-card,
.side-link {
  text-decoration: none;
}

.post-card a:hover,
.side-link:hover {
  color: var(--tea);
}

.post-card p,
.friend-card span {
  margin: 0;
  color: var(--muted);
}

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

.friend-card strong,
.friend-card span,
.friend-card small {
  display: block;
}

.friend-card strong {
  color: var(--ink);
}

.friend-card small {
  margin-top: 10px;
  color: var(--tea);
}

.page-header {
  padding: 46px 0;
  background: white;
  border-bottom: 1px solid var(--line);
}

.page-header h1 {
  font-size: clamp(30px, 4vw, 46px);
}

.breadcrumb,
.breadcrumb-line a {
  color: var(--tea);
  text-decoration: none;
}

.post-header {
  padding: 42px 0;
  color: white;
  background: linear-gradient(135deg, var(--tea), var(--tea-dark));
}

.post-header h1 {
  max-width: 920px;
  color: white;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.35;
}

.breadcrumb-line,
.post-meta.light {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: #ffe7c2;
}

.post-meta.light {
  gap: 18px;
  margin-top: 14px;
}

.post-shell {
  padding: 54px 0;
}

.post-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  gap: 30px;
  align-items: start;
}

.post-content {
  padding: 34px;
}

.post-content h2,
.post-content h3 {
  color: var(--ink);
}

.post-content table {
  width: 100%;
  margin: 20px 0;
  border-collapse: collapse;
}

.post-content th,
.post-content td {
  padding: 12px;
  border: 1px solid var(--line);
  text-align: left;
}

.post-content th {
  background: #f7ede7;
}

.caption {
  margin: 10px 0 26px;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

.article-note {
  margin-top: 28px;
  padding: 16px;
  color: var(--tea-dark);
  background: #fff4e8;
  border: 1px solid #f0d1bf;
  border-radius: 8px;
  font-size: 14px;
}

.sidebar {
  display: grid;
  gap: 18px;
  position: sticky;
  top: 88px;
}

.side-block h2 {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: 18px;
}

.side-link {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 0;
  border-top: 1px solid var(--line);
}

.side-link:first-of-type {
  border-top: 0;
}

.side-link small {
  flex: 0 0 auto;
  color: var(--muted);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.tag-row span {
  padding: 5px 10px;
  color: var(--tea-dark);
  background: #fff1e6;
  border-radius: 999px;
  font-size: 12px;
}

.site-footer {
  padding: 34px 0;
  color: #ffe7c2;
  background: #151922;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 22px;
}

.footer-grid p {
  max-width: 760px;
  margin: 8px 0 0;
  color: #c7b5a5;
  font-size: 14px;
}

.footer-grid a {
  display: block;
  color: #ffe7c2;
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 6px;
}

.popup-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  padding: 10px;
  box-sizing: border-box;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.popup-overlay.show {
  display: flex;
}

.popup-content {
  position: relative;
  width: 370px;
  max-width: 100%;
  max-height: 90vh;
  padding: 20px 30px;
  overflow-y: auto;
  box-sizing: border-box;
  text-align: center;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.3);
}

.popup-stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.popup-close-btn {
  display: flex;
  position: absolute;
  top: 5px;
  right: 5px;
  z-index: 10;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  padding: 0;
  color: #999;
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  touch-action: manipulation;
  background: rgba(0, 0, 0, 0.05);
  border: 0;
  border-radius: 50%;
  transition: background 0.3s, color 0.3s;
}

.popup-close-btn:hover {
  color: #fff;
  background: #f44336;
}

.popup-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.popup-title {
  margin: 0 0 10px;
  color: #ff4d4f;
  font-size: 24px;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.popup-image {
  display: block;
  width: 100%;
  max-width: 300px;
  height: auto;
  margin: 0 auto 15px;
  border-radius: 8px;
}

.popup-shop-wrap {
  padding-top: 16px;
  border-top: 1px solid #f3f4f6;
}

.popup-shop-btn {
  display: inline-block;
  width: 100%;
  padding: 12px 16px;
  box-sizing: border-box;
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  background: #e11d48;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: background 0.3s;
}

.popup-shop-btn:hover {
  background: #be123c;
}

@media (max-width: 920px) {
  .hero-grid,
  .post-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid,
  .post-list.compact,
  .friend-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sidebar {
    position: static;
  }
}

@media (max-width: 680px) {
  .container {
    width: min(100% - 28px, 1160px);
  }

  .nav-wrap {
    align-items: flex-start;
    flex-direction: column;
    padding: 12px 0;
  }

  nav {
    flex-wrap: wrap;
    gap: 12px 16px;
  }

  .hero {
    padding: 48px 0;
  }

  .hero-card {
    display: none;
  }

  .stats-grid,
  .post-list.compact,
  .friend-grid {
    grid-template-columns: 1fr;
  }

  .post-content {
    padding: 22px;
  }

  .popup-content {
    width: 95%;
    max-width: 320px;
    padding: 15px 20px;
  }

  .popup-title {
    font-size: 20px;
  }

  .popup-close-btn {
    width: 28px;
    height: 28px;
    font-size: 18px;
  }
}