/* ============================================
   古堰画乡官网 · 全局样式（新中式艺术风）
   ============================================ */

/* ---------- 字体与变量 ---------- */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;500;600;700;900&family=Noto+Sans+SC:wght@300;400;500;700&family=Ma+Shan+Zheng&display=swap');

:root {
  --ink: #1a1a1a;            /* 墨黑 */
  --ink-soft: #2c2c2c;
  --paper: #f5f1e8;          /* 宣纸米白 */
  --paper-deep: #ebe4d3;     /* 深宣纸 */
  --jade: #5a7d6a;           /* 青绿 */
  --jade-deep: #3d5a4a;
  --cinnabar: #a8332a;       /* 朱砂红 */
  --cinnabar-soft: #c44a40;
  --warm-gray: #8b8378;      /* 暖灰 */
  --line: #c9bfa8;           /* 分隔线 */
  --shadow: rgba(26, 26, 26, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background-color: var(--paper);
  color: var(--ink);
  line-height: 1.8;
  font-weight: 300;
  overflow-x: hidden;
}

/* 宋体标题 */
.serif {
  font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif;
}

/* 手写体 */
.brush {
  font-family: 'Ma Shan Zheng', 'STKaiti', cursive;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

img {
  max-width: 100%;
  display: block;
}

/* ---------- 顶部导航 ---------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 241, 232, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 20px var(--shadow);
}

.navbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.brand-seal {
  width: 42px;
  height: 42px;
  background: var(--cinnabar);
  color: var(--paper);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Noto Serif SC', serif;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -2px;
  box-shadow: 0 2px 8px rgba(168, 51, 42, 0.3);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-title {
  font-family: 'Noto Serif SC', serif;
  font-weight: 700;
  font-size: 19px;
  color: var(--ink);
  letter-spacing: 2px;
}

.brand-sub {
  font-size: 11px;
  color: var(--warm-gray);
  letter-spacing: 3px;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-menu > li {
  position: relative;
}

.nav-menu > li > a {
  display: block;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-soft);
  letter-spacing: 1px;
  border-bottom: 2px solid transparent;
  transition: all 0.3s ease;
}

.nav-menu > li > a:hover {
  color: var(--cinnabar);
}

.nav-menu > li.active > a {
  color: var(--cinnabar);
  border-bottom-color: var(--cinnabar);
}

/* 二级下拉 */
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 4px;
  box-shadow: 0 8px 24px var(--shadow);
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.25s ease;
}

.nav-menu > li:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown a {
  display: block;
  padding: 8px 18px;
  font-size: 13px;
  color: var(--ink-soft);
  border-left: 2px solid transparent;
}

.nav-dropdown a:hover {
  background: var(--paper-deep);
  color: var(--cinnabar);
  border-left-color: var(--cinnabar);
}

/* 移动端菜单按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--ink);
  transition: 0.3s;
}

/* ---------- 通用容器 ---------- */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

.container-narrow {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  padding: 80px 0;
}

.section-sm {
  padding: 48px 0;
}

/* ---------- 页面标题区 ---------- */
.page-header {
  position: relative;
  padding: 100px 0 60px;
  text-align: center;
  background:
    radial-gradient(ellipse at top, rgba(90, 125, 106, 0.08), transparent 60%),
    var(--paper);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 1px;
  background: var(--cinnabar);
}

.page-header .crumb {
  font-size: 12px;
  color: var(--warm-gray);
  letter-spacing: 4px;
  margin-bottom: 20px;
}

.page-header h1 {
  font-family: 'Noto Serif SC', serif;
  font-weight: 700;
  font-size: 42px;
  color: var(--ink);
  letter-spacing: 8px;
  margin-bottom: 16px;
}

.page-header .subtitle {
  font-size: 14px;
  color: var(--warm-gray);
  letter-spacing: 2px;
  max-width: 640px;
  margin: 0 auto;
}

/* 二级页面标题 */
.sub-header {
  padding: 64px 0 32px;
  text-align: center;
}

.sub-header h2 {
  font-family: 'Noto Serif SC', serif;
  font-size: 28px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 4px;
  margin-bottom: 10px;
}

.sub-header .sub-desc {
  font-size: 13px;
  color: var(--warm-gray);
  letter-spacing: 2px;
}

.sub-header::after {
  content: '';
  display: block;
  width: 40px;
  height: 2px;
  background: var(--cinnabar);
  margin: 16px auto 0;
}

/* ---------- 卡片 ---------- */
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px var(--shadow);
  border-color: var(--jade);
}

.card-img {
  aspect-ratio: 4 / 3;
  background: var(--paper-deep);
  overflow: hidden;
  position: relative;
}

.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.card:hover .card-img img {
  transform: scale(1.05);
}

.card-body {
  padding: 20px 24px;
}

.card-title {
  font-family: 'Noto Serif SC', serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
}

.card-text {
  font-size: 13px;
  color: var(--warm-gray);
  line-height: 1.7;
}

.card-tag {
  display: inline-block;
  padding: 2px 10px;
  font-size: 11px;
  color: var(--jade-deep);
  background: rgba(90, 125, 106, 0.1);
  border-radius: 2px;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

/* ---------- 网格 ---------- */
.grid {
  display: grid;
  gap: 28px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 2px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
  transition: all 0.3s ease;
  border-radius: 2px;
}

.btn:hover {
  background: var(--cinnabar);
  border-color: var(--cinnabar);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--ink);
}

.btn-outline:hover {
  background: var(--ink);
  color: var(--paper);
}

/* ---------- 图片占位 ---------- */
.placeholder {
  position: relative;
  background: linear-gradient(135deg, var(--paper-deep), #d8cfb8);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--warm-gray);
  font-size: 12px;
  letter-spacing: 2px;
  overflow: hidden;
}

.placeholder::after {
  content: attr(data-label);
  position: relative;
  z-index: 2;
}

.placeholder-water {
  background:
    linear-gradient(135deg, rgba(90,125,106,0.15), rgba(168,51,42,0.08)),
    var(--paper-deep);
}

/* ---------- 印章 ---------- */
.seal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--cinnabar);
  color: var(--paper);
  font-family: 'Noto Serif SC', serif;
  font-weight: 700;
  font-size: 14px;
  line-height: 1.1;
  text-align: center;
  border-radius: 4px;
  transform: rotate(-3deg);
  box-shadow: 0 4px 12px rgba(168, 51, 42, 0.3);
}

/* ---------- 引文 ---------- */
.quote {
  position: relative;
  padding: 32px 40px;
  font-family: 'Noto Serif SC', serif;
  font-size: 20px;
  line-height: 2;
  color: var(--ink-soft);
  text-align: center;
  font-style: italic;
}

.quote::before {
  content: '「';
  position: absolute;
  left: 8px;
  top: 0;
  font-size: 48px;
  color: var(--cinnabar);
  opacity: 0.4;
}

.quote::after {
  content: '」';
  position: absolute;
  right: 8px;
  bottom: -10px;
  font-size: 48px;
  color: var(--cinnabar);
  opacity: 0.4;
}

/* ---------- 信息条 ---------- */
.info-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  padding: 20px 28px;
  background: #fff;
  border-left: 3px solid var(--cinnabar);
  margin: 24px 0;
}

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

.info-item .label {
  font-size: 11px;
  color: var(--warm-gray);
  letter-spacing: 2px;
}

.info-item .value {
  font-family: 'Noto Serif SC', serif;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

/* ---------- 页脚 ---------- */
.footer {
  background: var(--ink);
  color: var(--paper);
  padding: 60px 0 24px;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer h4 {
  font-family: 'Noto Serif SC', serif;
  font-size: 16px;
  margin-bottom: 18px;
  letter-spacing: 2px;
}

.footer p, .footer li {
  font-size: 13px;
  color: rgba(245, 241, 232, 0.6);
  line-height: 2;
  list-style: none;
}

.footer a:hover {
  color: var(--cinnabar-soft);
}

.footer-bottom {
  border-top: 1px solid rgba(245, 241, 232, 0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 12px;
  color: rgba(245, 241, 232, 0.4);
  letter-spacing: 1px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--paper);
    padding: 16px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 8px 24px var(--shadow);
  }

  .nav-menu.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding-left: 20px;
  }

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

  .page-header h1 {
    font-size: 30px;
    letter-spacing: 4px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .container, .container-narrow {
    padding: 0 20px;
  }
}

@media (max-width: 600px) {
  .section {
    padding: 48px 0;
  }
  .page-header {
    padding: 60px 0 40px;
  }
}