@import url('https://fonts.googleapis.com/css2?family=Cormorant+Infant:wght@300;400;500;600;700&family=Great+Vibes&display=swap');

/* ===== CSS 自定义属性 ===== */
:root {
  --mint: #b4fde1;
  --baby-blue: #add8e6;
  --dark-green: #172620;
  --mint-light: #d6fff0;
  --blue-light: #d6eef7;
  --mint-mid: #7ef0c4;
  --dark-green-mid: #243d35;
  --dark-green-light: #2e5045;
  --white: #ffffff;
  --clay-radius: 20px;
  --clay-radius-sm: 12px;
  --card-radius: 4px;
  --border-w: 3px;
  --shadow-outer: 4px 6px 12px rgba(23,38,32,0.18), 0 1px 3px rgba(23,38,32,0.10);
  --shadow-inner: inset -2px -2px 8px rgba(23,38,32,0.10), inset 1px 1px 4px rgba(255,255,255,0.60);
  --font-body: 'Cormorant Infant', 'Noto Serif SC', serif;
  --font-brand: 'Great Vibes', cursive;
  --transition: 200ms cubic-bezier(0.34,1.56,0.64,1);
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.7;
  color: var(--dark-green);
  background: var(--mint-light);
  min-height: 100vh;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--dark-green); text-decoration: none; }
a:hover { color: var(--dark-green-mid); }
ul, ol { list-style: none; }

/* ===== 公告条 ===== */
.announce-bar {
  background: var(--dark-green);
  color: var(--mint);
  text-align: center;
  font-size: 13px;
  padding: 7px 16px;
  letter-spacing: 0.04em;
}

/* ===== 站点头部 ===== */
.site-header {
  background: linear-gradient(135deg, var(--mint) 0%, var(--baby-blue) 100%);
  border-bottom: var(--border-w) solid var(--dark-green);
  box-shadow: var(--shadow-outer);
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand-row {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px 4px;
}

.brand-link {
  display: inline-block;
}

.brand-script {
  font-family: var(--font-brand);
  font-size: clamp(28px, 5vw, 48px);
  color: var(--dark-green);
  text-shadow: 2px 2px 0 rgba(255,255,255,0.5);
  display: block;
}

/* ===== 导航 nav > p > a ===== */
.main-nav {
  padding: 0 16px 10px;
}

.main-nav p {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 8px;
  margin: 0;
}

.main-nav p a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 6px 14px;
  background: rgba(255,255,255,0.55);
  border: var(--border-w) solid var(--dark-green);
  border-radius: var(--clay-radius-sm);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  color: var(--dark-green);
  box-shadow: var(--shadow-outer), var(--shadow-inner);
  transition: transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.main-nav p a:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 6px 8px 16px rgba(23,38,32,0.22), var(--shadow-inner);
}

/* ===== Clay 卡片基础 ===== */
.clay-card {
  background: linear-gradient(145deg, var(--white) 0%, var(--mint-light) 100%);
  border: var(--border-w) solid var(--dark-green);
  border-radius: var(--clay-radius);
  box-shadow: var(--shadow-outer), var(--shadow-inner);
}

/* ===== Hero 首页 ===== */
.hero-section {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.hero-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: linear-gradient(135deg, var(--mint) 0%, var(--baby-blue) 60%, var(--mint-light) 100%);
  position: relative;
}

.hero-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 20px;
  padding: 60px 24px 80px;
  text-align: center;
  position: relative;
  z-index: 2;
}

.hero-deco {
  font-size: 64px;
  filter: drop-shadow(2px 4px 8px rgba(23,38,32,0.15));
}

.hero-mark {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: var(--border-w) solid var(--dark-green);
  box-shadow: var(--shadow-outer);
}

.hero-eyebrow small {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--dark-green);
  color: var(--mint);
  padding: 4px 14px;
  border-radius: 20px;
  display: inline-block;
}

.hero-h1 {
  font-family: var(--font-body);
  font-size: clamp(24px, 5vw, 52px);
  font-weight: 700;
  color: var(--dark-green);
  line-height: 1.3;
  max-width: 700px;
  text-shadow: 1px 1px 0 rgba(255,255,255,0.6);
}

.hero-sub {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--dark-green-mid);
  max-width: 560px;
  line-height: 1.7;
}

.hero-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--mint-light);
  clip-path: ellipse(55% 100% at 50% 100%);
}

/* ===== 按钮 ===== */
.btn-clay {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 28px;
  background: linear-gradient(135deg, var(--dark-green) 0%, var(--dark-green-mid) 100%);
  color: var(--mint);
  border: var(--border-w) solid var(--dark-green);
  border-radius: var(--clay-radius);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  box-shadow: var(--shadow-outer), var(--shadow-inner);
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}

.btn-clay:hover {
  color: var(--mint);
  transform: translateY(-3px) scale(1.04);
  box-shadow: 6px 9px 18px rgba(23,38,32,0.25), var(--shadow-inner);
}

.btn-clay:active {
  transform: translateY(1px) scale(0.98);
}

.btn-clay.btn-inv {
  background: linear-gradient(135deg, var(--mint) 0%, var(--baby-blue) 100%);
  color: var(--dark-green);
}

.btn-clay-sm {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 7px 18px;
  background: var(--mint-light);
  color: var(--dark-green);
  border: var(--border-w) solid var(--dark-green);
  border-radius: var(--clay-radius-sm);
  font-size: 14px;
  font-weight: 600;
  box-shadow: 3px 4px 8px rgba(23,38,32,0.13);
  transition: transform var(--transition);
}

.btn-clay-sm:hover {
  transform: translateY(-2px);
  color: var(--dark-green);
}

/* ===== 页面英雄区（非首页） ===== */
.page-hero {
  background: linear-gradient(135deg, var(--baby-blue) 0%, var(--mint) 100%);
  border-bottom: var(--border-w) solid var(--dark-green);
  padding: 48px 24px 40px;
}

.page-hero-inner {
  max-width: 860px;
  margin: 0 auto;
}

.page-hero h1 {
  font-size: clamp(22px, 4vw, 40px);
  font-weight: 700;
  color: var(--dark-green);
  margin: 12px 0 10px;
  line-height: 1.3;
}

.page-sub {
  font-size: 17px;
  color: var(--dark-green-mid);
  max-width: 640px;
  line-height: 1.7;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 6px;
  font-size: 13px;
  color: var(--dark-green-mid);
  margin-bottom: 10px;
  align-items: center;
}

.breadcrumb a { color: var(--dark-green); font-weight: 600; }
.breadcrumb span { color: var(--dark-green-light); }

/* ===== 内容区布局 main > article > section ===== */
.content-section {
  padding: 40px 24px 60px;
}

.layout-with-aside {
  display: flex;
  gap: 28px;
  max-width: 1100px;
  margin: 0 auto;
  align-items: flex-start;
}

/* 侧边栏在左 */
.side-nav {
  width: 220px;
  flex-shrink: 0;
  padding: 20px 16px;
  position: sticky;
  top: 130px;
}

.side-nav h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark-green);
  margin: 6px 0 12px;
}

.side-nav ul li {
  margin-bottom: 6px;
}

.side-nav ul li a {
  display: block;
  padding: 7px 10px;
  border-radius: var(--clay-radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--dark-green);
  transition: background var(--transition), transform var(--transition);
  min-height: 36px;
  display: flex;
  align-items: center;
}

.side-nav ul li a:hover {
  background: rgba(23,38,32,0.07);
  transform: translateX(3px);
}

.side-extra {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 2px solid rgba(23,38,32,0.1);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.side-link {
  font-size: 13px;
  color: var(--dark-green-mid);
  padding: 4px 0;
  min-height: 36px;
  display: flex;
  align-items: center;
}

.side-tags {
  margin-top: 14px;
}

.side-tags ul { margin-top: 8px; }

/* ===== 主内容区 ===== */
.main-content {
  flex: 1;
  min-width: 0;
}

/* ===== 眉题 / small 标签 ===== */
.eyebrow-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--dark-green);
  color: var(--mint);
  padding: 3px 12px;
  border-radius: 20px;
  margin-bottom: 8px;
}

/* ===== Prose（正文） ===== */
.prose-block {
  font-size: 17px;
  line-height: 1.8;
  color: var(--dark-green);
  margin-bottom: 36px;
}

.prose-block h2 {
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 700;
  margin: 28px 0 12px;
  color: var(--dark-green);
}

.prose-block h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 22px 0 10px;
  color: var(--dark-green);
}

.prose-block p { margin-bottom: 16px; }

.prose-block ul, .prose-block ol {
  padding-left: 24px;
  margin-bottom: 16px;
}

.prose-block ul { list-style: disc; }
.prose-block ol { list-style: decimal; }

.prose-block li { margin-bottom: 6px; }

.prose-block a {
  color: var(--dark-green);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.prose-block blockquote {
  border-left: 4px solid var(--mint-mid);
  padding: 12px 20px;
  background: var(--mint-light);
  border-radius: 0 var(--clay-radius-sm) var(--clay-radius-sm) 0;
  margin: 20px 0;
  font-style: italic;
}

.prose-block time {
  font-size: 14px;
  color: var(--dark-green-light);
}

/* ===== 精选分类 ===== */
.feat-section {
  margin-bottom: 40px;
}

.feat-section h2 {
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 700;
  margin: 6px 0 20px;
}

.feat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

.feat-card {
  padding: 20px 16px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.feat-card:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 6px 10px 20px rgba(23,38,32,0.20), var(--shadow-inner);
}

.feat-card a {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.feat-card strong {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark-green);
  display: block;
}

.card-meta {
  font-size: 13px;
  color: var(--dark-green-mid);
  display: block;
  line-height: 1.5;
}

.card-count {
  font-size: 12px;
  color: var(--dark-green-light);
  background: var(--mint);
  border-radius: 10px;
  padding: 2px 10px;
  align-self: flex-start;
  font-weight: 600;
}

/* ===== 最新文章列表 ===== */
.latest-section {
  margin-bottom: 40px;
}

.latest-section h2 {
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 700;
  margin: 6px 0 16px;
}

.art-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.art-item {
  padding: 14px 18px;
  transition: transform var(--transition);
}

.art-item:hover { transform: translateX(4px); }

.art-item a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.art-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--dark-green);
  flex: 1;
}

.art-date {
  font-size: 13px;
  color: var(--dark-green-light);
  white-space: nowrap;
}

/* ===== 子页/标签列表 ol > li > a + small ===== */
.children-block {
  margin-bottom: 36px;
}

.children-block h2 {
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 700;
  margin: 6px 0 20px;
}

.child-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  counter-reset: child-counter;
}

.child-item {
  padding: 16px 20px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.child-item:hover {
  transform: translateY(-3px);
  box-shadow: 5px 8px 18px rgba(23,38,32,0.18), var(--shadow-inner);
}

.child-item a {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.child-num {
  font-family: 'Cormorant Infant', serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--mint-mid);
  line-height: 1;
  flex-shrink: 0;
  width: 36px;
}

.child-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.child-info strong {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark-green);
  display: block;
}

.child-info small {
  font-size: 13px;
  color: var(--dark-green-mid);
  line-height: 1.5;
  display: block;
}

.child-date {
  font-size: 12px;
  color: var(--dark-green-light);
}

.empty-tip {
  color: var(--dark-green-mid);
  font-style: italic;
  padding: 20px 0;
}

/* ===== 文章页 ===== */
.art-header-section {
  background: linear-gradient(135deg, var(--mint) 0%, var(--baby-blue) 100%);
  border-bottom: var(--border-w) solid var(--dark-green);
  padding: 48px 24px 36px;
}

.art-header-inner {
  max-width: 860px;
  margin: 0 auto;
}

.art-header-section h1 {
  font-size: clamp(22px, 4vw, 38px);
  font-weight: 700;
  color: var(--dark-green);
  margin: 12px 0 14px;
  line-height: 1.35;
}

.art-dates {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--dark-green-light);
}

.art-hero-wrap {
  margin: 14px 0;
}

.art-hero-img {
  border-radius: var(--clay-radius);
  border: var(--border-w) solid var(--dark-green);
  box-shadow: var(--shadow-outer);
  max-height: 360px;
  width: 100%;
  object-fit: cover;
}

.art-prose {
  background: var(--white);
  border: var(--border-w) solid rgba(23,38,32,0.12);
  border-radius: var(--clay-radius);
  padding: 28px 32px;
  box-shadow: var(--shadow-inner);
}

/* ===== 上下篇 ===== */
.art-pager {
  display: flex;
  gap: 16px;
  margin: 28px 0;
}

.pager-btn {
  flex: 1;
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: transform var(--transition);
}

.pager-btn:hover { transform: translateY(-3px); }

.pager-btn small {
  font-size: 12px;
  color: var(--dark-green-light);
  font-weight: 700;
  letter-spacing: 0.06em;
}

.pager-btn span {
  font-size: 15px;
  font-weight: 600;
  color: var(--dark-green);
}

.pager-next { text-align: right; }

.art-footer-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

/* ===== About 特殊块 ===== */
.about-links {
  padding: 24px;
  margin-top: 24px;
}

.about-links h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 8px 0 16px;
}

.about-links ul li {
  margin-bottom: 10px;
}

.about-links ul li a {
  font-size: 16px;
  font-weight: 600;
  color: var(--dark-green);
  padding: 8px 0;
  display: block;
  border-bottom: 2px solid rgba(23,38,32,0.08);
  min-height: 40px;
  display: flex;
  align-items: center;
}

.about-links ul li a:hover {
  color: var(--dark-green-mid);
  padding-left: 6px;
}

/* ===== Privacy 特殊块 ===== */
.privacy-note {
  padding: 24px;
  margin-top: 24px;
}

.privacy-note h2 {
  font-size: 20px;
  font-weight: 700;
  margin: 8px 0 12px;
}

.privacy-note p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--dark-green-mid);
  margin-bottom: 16px;
}

/* ===== def-links / 杂项 ===== */
.def-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 20px;
}

/* ===== 页脚 footer address + ul ===== */
.site-footer {
  background: var(--dark-green);
  color: var(--mint-light);
  margin-top: 0;
}

.footer-cta {
  background: linear-gradient(135deg, var(--mint) 0%, var(--baby-blue) 100%);
  margin: 0;
  border-radius: 0;
  border: none;
  border-top: var(--border-w) solid var(--dark-green);
  border-bottom: var(--border-w) solid rgba(180,253,225,0.3);
  padding: 36px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  box-shadow: none;
}

.footer-cta-title {
  font-size: clamp(18px, 3vw, 26px);
  font-weight: 700;
  color: var(--dark-green);
}

.footer-cols {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 32px;
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 24px 28px;
}

.footer-col {}

.footer-addr {
  font-style: normal;
  line-height: 1.8;
  color: var(--mint-light);
  font-size: 15px;
}

.footer-addr strong {
  font-size: 18px;
  font-weight: 700;
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-brand);
  color: var(--mint);
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  color: rgba(180,253,225,0.8);
  font-size: 14px;
  min-height: 40px;
  display: flex;
  align-items: center;
  transition: color 200ms;
}

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

.footer-bottom {
  border-top: 1px solid rgba(180,253,225,0.15);
  text-align: center;
  padding: 16px 24px;
  font-size: 13px;
  color: rgba(180,253,225,0.55);
}

/* ===== 日期 time 通用 ===== */
time {
  font-size: 13px;
  color: var(--dark-green-light);
}

/* ===== Stagger 动画 ===== */
@media (prefers-reduced-motion: no-preference) {
  .stagger-item {
    opacity: 0;
    transform: translateY(16px);
    animation: stagger-in 0.45s cubic-bezier(0.34,1.56,0.64,1) forwards;
  }

  .stagger-item:nth-child(1) { animation-delay: 0.05s; }
  .stagger-item:nth-child(2) { animation-delay: 0.12s; }
  .stagger-item:nth-child(3) { animation-delay: 0.19s; }
  .stagger-item:nth-child(4) { animation-delay: 0.26s; }
  .stagger-item:nth-child(5) { animation-delay: 0.33s; }
  .stagger-item:nth-child(6) { animation-delay: 0.40s; }
  .stagger-item:nth-child(n+7) { animation-delay: 0.47s; }

  @keyframes stagger-in {
    to { opacity: 1; transform: translateY(0); }
  }

  .feat-card {
    opacity: 0;
    transform: translateY(20px) scale(0.97);
    animation: card-in 0.5s cubic-bezier(0.34,1.56,0.64,1) forwards;
  }

  .feat-grid .feat-card:nth-child(1) { animation-delay: 0.08s; }
  .feat-grid .feat-card:nth-child(2) { animation-delay: 0.18s; }
  .feat-grid .feat-card:nth-child(3) { animation-delay: 0.28s; }
  .feat-grid .feat-card:nth-child(4) { animation-delay: 0.38s; }

  @keyframes card-in {
    to { opacity: 1; transform: translateY(0) scale(1); }
  }
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .layout-with-aside {
    flex-direction: column;
  }

  .side-nav {
    width: 100%;
    position: static;
    order: -1;
  }

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

  .art-pager {
    flex-direction: column;
  }

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

  .art-item a {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .art-prose {
    padding: 18px 16px;
  }

  .hero-inner {
    padding: 40px 16px 70px;
  }
}

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

  .main-nav p a {
    font-size: 13px;
    padding: 6px 10px;
  }

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

  .child-num {
    font-size: 22px;
    width: 28px;
  }

  .page-hero {
    padding: 32px 16px 28px;
  }

  .content-section {
    padding: 24px 14px 40px;
  }

  .art-header-section {
    padding: 32px 16px 24px;
  }
}

/* ===== 视差提示（parallax hook，纯 CSS 层） ===== */
.hero-wrap {
  background-attachment: fixed;
}

@media (max-width: 768px) {
  .hero-wrap { background-attachment: scroll; }
}