@import url('https://fonts.googleapis.com/css2?family=Libre+Bodoni:wght@400;500;600;700&family=Public+Sans:wght@300;400;500;600;700&display=swap');

/* =====================
   CSS 变量 & 基础重置
   ===================== */
:root {
  --cream: #f5e6c8;
  --amber: #d4a574;
  --ink: #262117;
  --ink-light: #3d3220;
  --amber-dark: #b8864e;
  --amber-pale: #f0d5aa;
  --cream-dark: #e8d0a0;
  --grain-opacity: 0.04;
  --radius-sm: 4px;
  --radius-md: 8px;
  --shadow-card: 0 2px 12px rgba(38,33,23,0.12);
  --shadow-hover: 0 6px 24px rgba(38,33,23,0.18);
  --font-serif: 'Libre Bodoni', Georgia, 'Times New Roman', serif;
  --font-sans: 'Public Sans', system-ui, -apple-system, sans-serif;
  --aside-w: 260px;
  --content-max: 760px;
  --transition: 0.25s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.7;
  min-height: 100vh;
}

/* Film grain overlay via SVG filter */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: var(--grain-opacity);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
  background-repeat: repeat;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--amber-dark); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--ink); }
ul, ol { list-style: none; }

/* =====================
   公告栏
   ===================== */
.announce-bar {
  background: var(--ink);
  color: var(--amber);
  text-align: center;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  padding: 8px 16px;
  position: sticky;
  top: 0;
  z-index: 100;
}

/* =====================
   布局骨架
   ===================== */
.site-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* aside 在左，main-content 在右 */
.main-content {
  display: flex;
  flex-direction: column;
  flex: 1;
}

/* 桌面：aside 固定左侧 */
@media (min-width: 900px) {
  .site-wrapper {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .announce-bar {
    width: 100%;
    order: -1;
  }
  .site-aside {
    width: var(--aside-w);
    min-height: calc(100vh - 37px);
    position: sticky;
    top: 37px;
    height: calc(100vh - 37px);
    overflow-y: auto;
    order: 1;
  }
  .main-content {
    flex: 1;
    min-width: 0;
    order: 2;
  }
}

/* =====================
   侧边栏 aside
   ===================== */
.site-aside {
  background: var(--ink);
  color: var(--cream);
  padding: 28px 20px 40px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.brand-mark {
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(212,165,116,0.3);
}

.brand-text-logo {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--amber);
  line-height: 1.3;
  display: block;
}

.logo-img {
  max-height: 48px;
  width: auto;
}

.site-aside nav ul {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.site-aside nav ul li a {
  display: block;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--cream);
  font-size: 14px;
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.4;
  transition: background var(--transition), color var(--transition);
  min-height: 40px;
  display: flex;
  align-items: center;
}

.site-aside nav ul li a:hover {
  background: rgba(212,165,116,0.15);
  color: var(--amber);
}

.aside-tagline {
  font-size: 12px;
  color: rgba(245,230,200,0.5);
  line-height: 1.5;
  font-style: italic;
  margin-top: auto;
}

.aside-section-title {
  font-family: var(--font-serif);
  font-size: 13px;
  font-weight: 600;
  color: var(--amber);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.aside-related-list li a {
  display: block;
  padding: 6px 0;
  color: rgba(245,230,200,0.8);
  font-size: 13px;
  line-height: 1.4;
  border-bottom: 1px solid rgba(212,165,116,0.1);
  min-height: 40px;
  display: flex;
  align-items: center;
}

.aside-related-list li a:hover {
  color: var(--amber);
}

/* =====================
   Hero (首页)
   ===================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  background: var(--ink);
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  min-height: 100vh;
  padding: 60px 40px 80px;
  gap: 40px;
}

/* 双图错位拼贴 */
.hero-collage {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.polaroid {
  position: absolute;
  background: #fff;
  padding: 10px 10px 32px;
  box-shadow: 4px 6px 20px rgba(0,0,0,0.5);
  border: 1px solid rgba(255,255,255,0.1);
}

.polaroid-img-wrap {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #3d2b1a 0%, #1a1208 50%, #2d1f0e 100%);
  position: relative;
  overflow: hidden;
}

.polaroid-img-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(212,165,116,0.15) 50%, transparent 70%);
}

.polaroid-caption {
  display: block;
  text-align: center;
  font-family: var(--font-serif);
  font-size: 11px;
  color: var(--ink);
  padding-top: 8px;
}

.polaroid-1 {
  width: 200px;
  height: 220px;
  top: 10%;
  left: 5%;
  transform: rotate(-4deg);
  animation: polaroid-shake1 6s ease-in-out infinite;
}

.polaroid-2 {
  width: 180px;
  height: 200px;
  top: 35%;
  left: 15%;
  transform: rotate(3deg);
  animation: polaroid-shake2 7s ease-in-out infinite;
}

@keyframes polaroid-shake1 {
  0%, 100% { transform: rotate(-4deg) translateY(0); }
  50% { transform: rotate(-3deg) translateY(-6px); }
}

@keyframes polaroid-shake2 {
  0%, 100% { transform: rotate(3deg) translateY(0); }
  50% { transform: rotate(4deg) translateY(-8px); }
}

/* 光晕效果 */
.light-leak {
  position: absolute;
  top: -20%;
  right: 20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(212,165,116,0.25) 0%, transparent 70%);
  animation: light-leak-pulse 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes light-leak-pulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}

/* 斜切色带 */
.hero-slash {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: var(--cream);
  clip-path: polygon(0 60%, 100% 0%, 100% 100%, 0% 100%);
  z-index: 1;
}

.hero-text {
  position: relative;
  z-index: 3;
  text-align: right;
  max-width: 480px;
  padding-bottom: 80px;
}

.hero-eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--amber);
  border: 1px solid var(--amber);
  padding: 4px 10px;
  margin-bottom: 16px;
}

.hero-section h1 {
  font-family: var(--font-serif);
  font-size: clamp(26px, 4vw, 48px);
  font-weight: 700;
  color: var(--cream);
  line-height: 1.2;
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 16px;
  color: rgba(245,230,200,0.8);
  margin-bottom: 28px;
  line-height: 1.6;
}

.hero-cta {
  display: inline-block;
  background: var(--amber);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition);
  min-height: 44px;
}

.hero-cta:hover {
  background: var(--amber-dark);
  color: var(--cream);
  transform: translateY(-2px);
}

/* =====================
   正文区域
   ===================== */
main { flex: 1; }

.wrap {
  max-width: calc(var(--content-max) + 80px);
  margin: 0 auto;
  padding: 40px 32px 60px;
}

.content-section {
  /* main > div.wrap > section > article 结构满足契约 */
}

.page-article {
  background: #fff;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  position: relative;
}

.page-article::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--amber-dark), var(--amber), var(--amber-pale));
}

.article-header {
  padding: 36px 40px 24px;
  border-bottom: 1px solid var(--cream-dark);
}

.article-type-tag {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--cream);
  color: var(--amber-dark);
  border: 1px solid var(--amber);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.breadcrumb-link {
  font-size: 13px;
  color: var(--amber-dark);
}

.breadcrumb-sep {
  font-size: 13px;
  color: var(--ink-light);
  margin: 0 6px;
  opacity: 0.5;
}

.article-meta-top {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.page-article h1,
.article-full h1 {
  font-family: var(--font-serif);
  font-size: clamp(22px, 3.5vw, 36px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--ink);
  margin-bottom: 12px;
}

.article-dates {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.article-date {
  font-size: 13px;
  color: rgba(38,33,23,0.55);
  font-family: var(--font-sans);
}

.article-lead {
  font-size: 17px;
  color: var(--ink-light);
  line-height: 1.6;
  font-style: italic;
  font-family: var(--font-serif);
}

.article-divider {
  border: none;
  border-top: 2px solid var(--amber);
  margin: 20px 0 0;
  opacity: 0.5;
}

.article-body {
  padding: 32px 40px 40px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--ink);
}

.article-body h2 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  margin: 36px 0 8px;
}

.article-body h2 + hr,
.article-body h3 + hr {
  border: none;
  border-top: 1px solid var(--amber);
  margin: 0 0 20px;
  opacity: 0.4;
}

.article-body h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin: 28px 0 8px;
}

.article-body p {
  margin-bottom: 18px;
}

.article-body ul,
.article-body ol {
  margin: 0 0 18px 20px;
  list-style: disc;
}

.article-body ol {
  list-style: decimal;
}

.article-body li {
  margin-bottom: 6px;
  line-height: 1.7;
}

.article-body a {
  color: var(--amber-dark);
  text-decoration: underline;
  text-decoration-color: rgba(212,165,116,0.4);
}

.article-body a:hover {
  color: var(--ink);
  text-decoration-color: var(--ink);
}

.article-body blockquote {
  border-left: 3px solid var(--amber);
  margin: 20px 0;
  padding: 12px 20px;
  background: var(--cream);
  font-style: italic;
  color: var(--ink-light);
}

.article-body hr {
  border: none;
  border-top: 1px solid var(--cream-dark);
  margin: 28px 0;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
  font-size: 15px;
}

.article-body th {
  background: var(--ink);
  color: var(--cream);
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
}

.article-body td {
  padding: 9px 14px;
  border-bottom: 1px solid var(--cream-dark);
}

.article-body tr:nth-child(even) td {
  background: rgba(245,230,200,0.4);
}

.article-footer {
  padding: 20px 40px 32px;
  border-top: 1px solid var(--cream-dark);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.back-link {
  font-size: 14px;
  color: var(--amber-dark);
  font-family: var(--font-sans);
  font-weight: 500;
  padding: 8px 16px;
  border: 1px solid var(--amber);
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
}

.back-link:hover {
  background: var(--amber);
  color: var(--ink);
}

/* =====================
   最新内容 / 子页区块
   ===================== */
.recent-section,
.children-section,
.about-articles-section {
  margin-top: 40px;
}

.recent-section h2,
.children-section h2,
.about-articles-section h2 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

.recent-section h2 + hr,
.children-section h2 + hr,
.about-articles-section h2 + hr {
  border: none;
  border-top: 2px solid var(--amber);
  margin: 0 0 24px;
  opacity: 0.6;
}

/* 文章列表 */
.article-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  list-style: decimal;
  padding-left: 24px;
}

.article-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--cream-dark);
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

.article-list li a {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.4;
  flex: 1;
}

.article-list li a:hover {
  color: var(--amber-dark);
}

.article-list li small,
.article-list li small time {
  font-size: 13px;
  color: rgba(38,33,23,0.5);
  white-space: nowrap;
}

/* 文章索引列表 (about) */
.article-index-list {
  list-style: decimal;
  padding-left: 24px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.article-index-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--cream-dark);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.article-index-list li a {
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
}

.article-index-list li a:hover {
  color: var(--amber-dark);
}

.article-index-list li small {
  font-size: 13px;
  color: rgba(38,33,23,0.55);
  line-height: 1.4;
}

/* =====================
   玻璃卡片
   ===================== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  padding: 0;
}

.glass-card {
  background: rgba(255,255,255,0.65);
  border: 1px solid rgba(212,165,116,0.3);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition), transform var(--transition);
  overflow: hidden;
}

.glass-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.glass-card a {
  display: block;
  padding: 24px 20px;
  color: var(--ink);
}

.glass-card h3 {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.35;
  color: var(--ink);
}

.glass-card .card-desc {
  font-size: 14px;
  color: var(--ink-light);
  line-height: 1.5;
  margin-bottom: 8px;
}

.glass-card .card-date {
  font-size: 12px;
  color: rgba(38,33,23,0.45);
  display: block;
}

/* =====================
   film-grain 元素
   ===================== */
.film-grain {
  position: relative;
}

.film-grain::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='grain'%3E%3CfeTurbulence type='turbulence' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23grain)' opacity='0.18'/%3E%3C/svg%3E");
  pointer-events: none;
  mix-blend-mode: overlay;
}

/* =====================
   页脚
   ===================== */
.site-footer {
  background: var(--ink);
  color: var(--cream);
  margin-top: auto;
}

.footer-cta-block {
  background: var(--amber);
  padding: 40px 40px 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-cta-text {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
}

.footer-cta-btn {
  display: inline-flex;
  align-items: center;
  background: var(--ink);
  color: var(--amber);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
  min-height: 44px;
  white-space: nowrap;
}

.footer-cta-btn:hover {
  background: var(--ink-light);
  color: var(--cream);
}

.footer-main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding: 40px 40px 32px;
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--amber);
  display: block;
  margin-bottom: 12px;
}

.footer-brand-col address {
  font-style: normal;
  font-size: 14px;
  color: rgba(245,230,200,0.65);
  line-height: 1.6;
}

.footer-links-col ul {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-links-col ul li a {
  display: block;
  color: rgba(245,230,200,0.75);
  font-size: 14px;
  padding: 7px 0;
  border-bottom: 1px solid rgba(212,165,116,0.1);
  transition: color var(--transition);
  min-height: 40px;
  display: flex;
  align-items: center;
}

.footer-links-col ul li a:hover {
  color: var(--amber);
}

.footer-bottom {
  border-top: 1px solid rgba(212,165,116,0.2);
  padding: 16px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 13px;
  color: rgba(245,230,200,0.45);
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-bottom-links li a {
  font-size: 13px;
  color: rgba(245,230,200,0.55);
  transition: color var(--transition);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
}

.footer-bottom-links li a:hover {
  color: var(--amber);
}

/* =====================
   Scroll Reveal
   ===================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .polaroid-1, .polaroid-2 { animation: none; }
  .light-leak { animation: none; }
  body::after { display: none; }
}

/* =====================
   关于 / 隐私页专有
   ===================== */
.about-section .article-body,
.privacy-section .article-body {
  font-size: 16px;
}

.privacy-body h2 {
  font-size: 20px;
  margin: 32px 0 8px;
}

/* =====================
   首页正文区 (page.content)
   ===================== */
.page-home .article-body {
  font-size: 16px;
  color: var(--ink-light);
}

/* =====================
   移动端适配
   ===================== */
@media (max-width: 899px) {
  .site-aside {
    position: static;
    width: 100%;
    height: auto;
    min-height: auto;
    padding: 20px 20px 24px;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 16px;
    align-items: flex-start;
  }

  .brand-mark {
    border-bottom: none;
    padding-bottom: 0;
    flex: 0 0 auto;
  }

  .site-aside nav {
    flex: 1;
    min-width: 200px;
  }

  .site-aside nav ul {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 4px;
  }

  .site-aside nav ul li a {
    font-size: 13px;
    padding: 8px 10px;
  }

  .aside-tagline {
    display: none;
  }

  .aside-related {
    width: 100%;
  }

  .hero-inner {
    padding: 40px 20px 100px;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-end;
  }

  .hero-text {
    max-width: 100%;
    padding-bottom: 40px;
  }

  .polaroid-1 {
    width: 120px;
    height: 135px;
    top: 8%;
    left: 2%;
  }

  .polaroid-2 {
    width: 110px;
    height: 125px;
    top: 28%;
    left: 10%;
  }

  .wrap {
    padding: 24px 16px 40px;
  }

  .article-header {
    padding: 24px 20px 16px;
  }

  .article-body {
    padding: 24px 20px 28px;
  }

  .article-footer {
    padding: 16px 20px 24px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 28px 20px 24px;
  }

  .footer-cta-block {
    padding: 28px 20px 24px;
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-bottom {
    padding: 14px 20px;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  body { font-size: 16px; }

  .hero-section h1 {
    font-size: 22px;
  }

  .hero-eyebrow {
    font-size: 11px;
  }

  .announce-bar {
    font-size: 12px;
    padding: 7px 12px;
  }

  .site-aside nav ul li a {
    font-size: 12px;
    padding: 6px 8px;
    min-height: 40px;
  }

  .footer-cta-text {
    font-size: 18px;
  }
}