/* ========================================
   中央预算内专项资金项目申请指南 - 主样式表
   风格：国家机关公文质感，庄重、清晰、可信
   ======================================== */

/* --- CSS 变量 / Design Tokens --- */
:root {
  --color-primary: #1a3c6e;
  --color-primary-light: #1a5caa;
  --color-primary-dark: #0d2a52;
  --color-accent: #c41e24;
  --color-accent-hover: #a01820;
  --color-bg-page: #f5f6fa;
  --color-bg-content: #ffffff;
  --color-text: #333333;
  --color-text-secondary: #666666;
  --color-text-light: #999999;
  --color-border: #e0e4ea;
  --color-link: #1a5caa;
  --color-link-hover: #0d3b7a;
  --color-breadcrumb-bg: #eef0f5;
  --color-nav-shadow: rgba(0, 0, 0, 0.12);

  --font-serif: "Noto Serif SC", "SimSun", "STSong", serif;
  --font-sans: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;

  --font-size-h1: 28px;
  --font-size-h2: 24px;
  --font-size-h3: 20px;
  --font-size-h4: 18px;
  --font-size-base: 16px;
  --font-size-sm: 14px;
  --font-size-xs: 12px;

  --line-height-base: 1.8;
  --line-height-tight: 1.4;

  --radius: 4px;
  --max-width: 1200px;
  --nav-height: 60px;
}

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

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg-page);
  line-height: var(--line-height-base);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-top: var(--nav-height);
}

a {
  color: var(--color-link);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover {
  color: var(--color-link-hover);
}

img { max-width: 100%; height: auto; }
ul, ol { list-style: none; }

/* --- 顶部导航栏 --- */
.site-header {
  background: var(--color-primary);
  color: #ffffff;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  transition: box-shadow 0.3s ease;
}
.site-header.scrolled {
  box-shadow: 0 2px 12px var(--color-nav-shadow);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-logo:hover { color: #ffffff; opacity: 0.9; }
.nav-logo .logo-emblem {
  width: 32px;
  height: 32px;
  background: var(--color-accent);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 900;
  font-family: var(--font-serif);
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--font-size-sm);
  padding: 6px 12px;
  border-radius: var(--radius);
  transition: all 0.2s ease;
  position: relative;
  white-space: nowrap;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 12px;
  right: 12px;
  height: 2px;
  background: #ffffff;
  transform: scaleX(0);
  transition: transform 0.2s ease;
}
.nav-links a:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
}
.nav-links a:hover::after {
  transform: scaleX(1);
}
.nav-links a.active {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.15);
}
.nav-links a.active::after {
  transform: scaleX(1);
}

/* --- 导航栏兼容：header-inner + main-nav 结构 --- */
.site-header .header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.main-nav {
  display: flex;
  align-items: center;
}
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.main-nav li {
  list-style: none;
}
.main-nav li a {
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--font-size-sm);
  padding: 6px 12px;
  border-radius: var(--radius);
  transition: all 0.2s ease;
  position: relative;
  white-space: nowrap;
  display: inline-block;
  text-decoration: none;
}
.main-nav li a::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 12px;
  right: 12px;
  height: 2px;
  background: #ffffff;
  transform: scaleX(0);
  transition: transform 0.2s ease;
}
.main-nav li a:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
}
.main-nav li a:hover::after {
  transform: scaleX(1);
}
.main-nav li.active a {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.15);
}
.main-nav li.active a::after {
  transform: scaleX(1);
}

/* 移动端菜单按钮 */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: #ffffff;
  font-size: 24px;
  cursor: pointer;
  padding: 4px;
  line-height: 1;
}

/* --- 主体内容区 --- */
.site-main {
  flex: 1;
  margin-top: var(--nav-height);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* --- 面包屑 --- */
.breadcrumb-bar {
  background: var(--color-breadcrumb-bg);
  border-bottom: 1px solid var(--color-border);
  padding: 10px 0;
}
.breadcrumb {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}
.breadcrumb a {
  color: var(--color-text-secondary);
}
.breadcrumb a:hover {
  color: var(--color-link);
}
.breadcrumb span {
  margin: 0 6px;
  color: var(--color-text-light);
}
.breadcrumb .current {
  color: var(--color-text);
}

/* --- 首页 Hero --- */
.hero {
  background: var(--color-primary);
  color: #ffffff;
  padding: 60px 0 50px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
  opacity: 0.3;
}
.hero-content {
  position: relative;
  z-index: 1;
}
.hero h1 {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 2px;
}
.hero .subtitle {
  font-size: var(--font-size-h3);
  opacity: 0.85;
  margin-bottom: 40px;
  font-weight: 300;
}

/* 快捷入口卡片 */
.quick-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}
.quick-link-card {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  padding: 24px 16px;
  text-align: center;
  color: #ffffff;
  text-decoration: none;
  transition: all 0.2s ease;
}
.quick-link-card:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}
.quick-link-card .card-icon {
  font-size: 28px;
  margin-bottom: 10px;
  display: block;
  font-style: normal;
}
.quick-link-card .card-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: 4px;
}
.quick-link-card .card-desc {
  font-size: var(--font-size-xs);
  opacity: 0.75;
}

/* --- 首页区块 --- */
.home-section {
  padding: 40px 0;
}
.home-section .section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: 12px;
}
.home-section .section-title {
  font-family: var(--font-serif);
  font-size: var(--font-size-h2);
  color: var(--color-primary);
  font-weight: 700;
}
.home-section .section-more {
  font-size: var(--font-size-sm);
  color: var(--color-link);
}
.home-section .section-more:hover {
  color: var(--color-link-hover);
}

/* 首页双栏布局 */
.home-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

/* --- 文章列表 --- */
.article-list {
  background: var(--color-bg-content);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}
.article-list-item {
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  transition: background 0.15s ease;
}
.article-list-item:last-child {
  border-bottom: none;
}
.article-list-item:hover {
  background: #f8f9fc;
}
.article-list-item .item-title {
  font-size: var(--font-size-base);
  color: var(--color-text);
  line-height: var(--line-height-tight);
  flex: 1;
}
.article-list-item .item-title:hover {
  color: var(--color-link);
}
.article-list-item .item-date {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: 3px;
}

/* --- 文章列表兼容：article-item 结构 --- */
.article-item {
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
  transition: background 0.15s ease;
}
.article-item:last-child {
  border-bottom: none;
}
.article-item:hover {
  background: #f8f9fc;
}
.article-item .article-title {
  display: block;
  font-size: var(--font-size-base);
  color: var(--color-text);
  line-height: var(--line-height-tight);
  margin-bottom: 6px;
  text-decoration: none;
}
.article-item .article-title:hover {
  color: var(--color-link);
}
.article-item .article-meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
  display: flex;
  gap: 16px;
}
.article-item .article-meta span {
  white-space: nowrap;
}
.category-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: 20px;
}

/* --- 栏目页布局 --- */
.category-page {
  padding: 30px 0 50px;
}
.category-header {
  margin-bottom: 24px;
}
.category-header h1 {
  font-family: var(--font-serif);
  font-size: var(--font-size-h1);
  color: var(--color-primary);
  font-weight: 700;
}
.category-header p {
  color: var(--color-text-secondary);
  margin-top: 8px;
}

.category-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 30px;
}

/* 侧边栏 */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.sidebar-widget {
  background: var(--color-bg-content);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
}
.sidebar-widget h3 {
  font-family: var(--font-serif);
  font-size: var(--font-size-h4);
  color: var(--color-primary);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}
.sidebar-widget ul li {
  padding: 6px 0;
  border-bottom: 1px dashed var(--color-border);
}
.sidebar-widget ul li:last-child {
  border-bottom: none;
}
.sidebar-widget ul li a {
  font-size: var(--font-size-sm);
  color: var(--color-text);
}
.sidebar-widget ul li a:hover {
  color: var(--color-link);
}

/* --- 文章页 --- */
.article-page {
  padding: 30px 0 50px;
}
.article-page .article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 30px;
}

.article-main {
  background: var(--color-bg-content);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
}
.article-main h1 {
  font-family: var(--font-serif);
  font-size: var(--font-size-h1);
  color: var(--color-text);
  font-weight: 700;
  line-height: var(--line-height-tight);
  margin-bottom: 16px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 24px;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}
.article-meta .meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.article-body {
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
}
.article-body p {
  margin-bottom: 1em;
  text-indent: 2em;
}
.article-body h2 {
  font-family: var(--font-serif);
  font-size: var(--font-size-h2);
  color: var(--color-primary);
  margin: 1.5em 0 0.8em;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}
.article-body h3 {
  font-family: var(--font-serif);
  font-size: var(--font-size-h3);
  color: var(--color-text);
  margin: 1.2em 0 0.6em;
}
.article-body h4 {
  font-size: var(--font-size-h4);
  font-weight: 600;
  margin: 1em 0 0.5em;
}
.article-body ul, .article-body ol {
  margin: 0.5em 0 1em 2em;
}
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li {
  margin-bottom: 0.3em;
  text-indent: 0;
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1em 0;
  font-size: var(--font-size-sm);
}
.article-body table th,
.article-body table td {
  border: 1px solid var(--color-border);
  padding: 8px 12px;
  text-align: left;
  text-indent: 0;
}
.article-body table th {
  background: var(--color-breadcrumb-bg);
  font-weight: 600;
  color: var(--color-primary);
}
.article-body blockquote {
  border-left: 4px solid var(--color-primary);
  padding: 12px 20px;
  margin: 1em 0;
  background: var(--color-breadcrumb-bg);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* 相关文章 */
.related-articles {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}
.related-articles h3 {
  font-family: var(--font-serif);
  font-size: var(--font-size-h3);
  color: var(--color-primary);
  margin-bottom: 16px;
}
.related-articles ul li {
  padding: 8px 0;
  border-bottom: 1px dashed var(--color-border);
}
.related-articles ul li:last-child {
  border-bottom: none;
}
.related-articles ul li a {
  font-size: var(--font-size-sm);
  color: var(--color-text);
  display: flex;
  justify-content: space-between;
}
.related-articles ul li a:hover {
  color: var(--color-link);
}
.related-articles ul li .rel-date {
  color: var(--color-text-light);
  font-size: var(--font-size-xs);
  white-space: nowrap;
  margin-left: 12px;
}

/* --- 页脚 --- */
.site-footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.8);
  padding: 40px 0 0;
  margin-top: auto;
}
.footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer-section h4 {
  color: #ffffff;
  font-size: var(--font-size-base);
  margin-bottom: 16px;
  font-weight: 600;
}
.footer-section p {
  font-size: var(--font-size-sm);
  line-height: 1.8;
  margin-bottom: 4px;
}
.footer-section ul li {
  margin-bottom: 8px;
}
.footer-section ul li a {
  color: rgba(255, 255, 255, 0.75);
  font-size: var(--font-size-sm);
  transition: color 0.2s ease;
}
.footer-section ul li a:hover {
  color: #ffffff;
}

.footer-bottom {
  margin-top: 30px;
  padding: 16px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  text-align: center;
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.5);
}

/* --- 页脚兼容：footer-inner 结构 --- */
.site-footer .footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer-section h3 {
  color: #ffffff;
  font-size: var(--font-size-base);
  margin-bottom: 16px;
  font-weight: 600;
}
.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-links li {
  margin-bottom: 8px;
}
.footer-links li a {
  color: rgba(255, 255, 255, 0.75);
  font-size: var(--font-size-sm);
  transition: color 0.2s ease;
}
.footer-links li a:hover {
  color: #ffffff;
}

/* --- FAQ 手风琴 --- */
.faq-list {
  background: var(--color-bg-content);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}
.faq-item {
  border-bottom: 1px solid var(--color-border);
}
.faq-item:last-child {
  border-bottom: none;
}
.faq-question {
  padding: 16px 20px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  transition: background 0.15s ease;
}
.faq-question:hover {
  background: #f8f9fc;
}
.faq-question .faq-toggle {
  font-size: 18px;
  transition: transform 0.2s ease;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-left: 12px;
}
.faq-item.open .faq-toggle {
  transform: rotate(45deg);
}
.faq-answer {
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-base);
}
.faq-item.open .faq-answer {
  padding: 0 20px 16px;
  max-height: 500px;
}

/* --- 申报流程 --- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin: 30px 0;
}
.process-step {
  background: var(--color-bg-content);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  position: relative;
}
.process-step .step-num {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  margin: 0 auto 12px;
}
.process-step h3 {
  font-family: var(--font-serif);
  font-size: var(--font-size-h4);
  color: var(--color-primary);
  margin-bottom: 8px;
}
.process-step p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}
.process-step::after {
  content: '→';
  position: absolute;
  right: -14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-primary);
  font-size: 20px;
  font-weight: 700;
}
.process-step:last-child::after {
  display: none;
}

/* --- 重点专项卡片 --- */
.areas-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.area-card {
  background: var(--color-bg-content);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all 0.2s ease;
}
.area-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}
.area-card .area-tag {
  display: inline-block;
  background: var(--color-accent);
  color: #ffffff;
  font-size: var(--font-size-xs);
  padding: 2px 8px;
  border-radius: 2px;
  margin-bottom: 10px;
}
.area-card h3 {
  font-family: var(--font-serif);
  font-size: var(--font-size-h4);
  color: var(--color-text);
  margin-bottom: 8px;
}
.area-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-base);
}

/* --- 项目案例卡片 --- */
.case-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.case-card {
  background: var(--color-bg-content);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all 0.2s ease;
}
.case-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}
.case-card .case-tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  padding: 2px 8px;
  border-radius: 2px;
  margin-bottom: 10px;
  background: #e8f0fe;
  color: var(--color-primary);
}
.case-card h3 {
  font-family: var(--font-serif);
  font-size: var(--font-size-h4);
  color: var(--color-text);
  margin-bottom: 8px;
}
.case-card .case-meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
  margin-bottom: 8px;
}
.case-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* --- 联系我们 --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}
.contact-info-card {
  background: var(--color-bg-content);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 30px;
}
.contact-info-card h3 {
  font-family: var(--font-serif);
  font-size: var(--font-size-h3);
  color: var(--color-primary);
  margin-bottom: 20px;
}
.contact-item {
  margin-bottom: 16px;
  font-size: var(--font-size-sm);
}
.contact-item .contact-label {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}
.contact-item .contact-value {
  color: var(--color-text-secondary);
}

/* --- 关于我们 --- */
.about-content {
  background: var(--color-bg-content);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
}
.about-content h2 {
  font-family: var(--font-serif);
  font-size: var(--font-size-h2);
  color: var(--color-primary);
  margin: 1.5em 0 0.8em;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}
.about-content p {
  text-indent: 2em;
  margin-bottom: 1em;
  color: var(--color-text);
}

/* --- 材料清单 --- */
.materials-list {
  background: var(--color-bg-content);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 30px;
}
.materials-list h2 {
  font-family: var(--font-serif);
  font-size: var(--font-size-h2);
  color: var(--color-primary);
  margin: 1.5em 0 0.8em;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}
.materials-list h2:first-child {
  margin-top: 0;
}
.materials-list ol {
  list-style: decimal;
  margin-left: 2em;
  margin-bottom: 1em;
}
.materials-list li {
  margin-bottom: 0.5em;
  font-size: var(--font-size-sm);
  line-height: var(--line-height-base);
}
.materials-list p {
  text-indent: 2em;
  margin-bottom: 1em;
  font-size: var(--font-size-sm);
}

/* --- 按钮 --- */
.btn {
  display: inline-block;
  padding: 10px 24px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
  text-align: center;
}
.btn-primary {
  background: var(--color-accent);
  color: #ffffff;
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  color: #ffffff;
}
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: #ffffff;
}

/* --- 分页 --- */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  margin-top: 30px;
  padding: 20px 0;
  flex-wrap: wrap;
}
.page-btn, .pagination a, .pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  text-decoration: none;
  transition: all 0.2s ease;
  background: #ffffff;
}
.page-btn:hover, .pagination a:hover {
  background: var(--color-breadcrumb-bg);
  color: var(--color-link);
  border-color: var(--color-link);
}
.page-active, .pagination .active {
  background: var(--color-primary) !important;
  color: #ffffff !important;
  border-color: var(--color-primary) !important;
  font-weight: 600;
}
.page-disabled {
  color: var(--color-text-secondary) !important;
  cursor: not-allowed;
  opacity: 0.6;
}
.page-prev, .page-next {
  padding: 0 16px;
  font-weight: 500;
}

/* --- 通知横幅 --- */
.notice-bar {
  background: #fffbe6;
  border-bottom: 1px solid #ffe58f;
  padding: 10px 0;
  font-size: var(--font-size-sm);
}
.notice-bar .container {
  display: flex;
  align-items: center;
  gap: 8px;
}
.notice-bar .notice-label {
  background: var(--color-accent);
  color: #ffffff;
  padding: 2px 8px;
  border-radius: 2px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  white-space: nowrap;
}
.notice-bar a {
  color: var(--color-text);
}
.notice-bar a:hover {
  color: var(--color-link);
}

/* --- 移动端侧滑菜单 --- */
.mobile-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 999;
}
.mobile-overlay.show {
  display: block;
}
.mobile-menu {
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100%;
  background: var(--color-bg-content);
  z-index: 1001;
  transition: right 0.3s ease;
  overflow-y: auto;
  padding: 20px;
}
.mobile-menu.show {
  right: 0;
}
.mobile-menu .mobile-close {
  text-align: right;
  margin-bottom: 16px;
}
.mobile-menu .mobile-close button {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--color-text-secondary);
}
.mobile-menu a {
  display: block;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: var(--font-size-base);
}
.mobile-menu a:hover {
  color: var(--color-link);
}
.mobile-menu a.active {
  color: var(--color-primary);
  font-weight: 600;
}

/* --- 响应式 --- */
@media (max-width: 1024px) {
  .category-layout,
  .article-page .article-layout,
  .content-with-sidebar {
    grid-template-columns: 1fr;
  }
  .sidebar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
  .site-footer .footer-inner {
    grid-template-columns: 1fr 1fr;
  }
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-step::after {
    display: none;
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-h1: 24px;
    --font-size-h2: 20px;
    --font-size-h3: 18px;
    --font-size-h4: 16px;
  }

  .nav-links { display: none; }
  .main-nav { display: none; }
  .nav-toggle { display: block; }

  .hero { padding: 40px 0 30px; }
  .hero h1 { font-size: 24px; }
  .quick-links { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .quick-link-card { padding: 16px 12px; }

  .home-cols { grid-template-columns: 1fr; }
  .areas-grid { grid-template-columns: 1fr; }
  .case-list { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }

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

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

  .article-main {
    padding: 20px;
  }

  .process-steps {
    grid-template-columns: 1fr;
  }
}

/* --- 工具类 --- */
.text-center { text-align: center; }
.text-accent { color: var(--color-accent); }
.text-primary { color: var(--color-primary); }
.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }
.mb-30 { margin-bottom: 30px; }

/* --- 报告提纲样式 --- */
.report-outline {
  margin: 24px 0;
}
.outline-item {
  border-left: 3px solid var(--color-primary);
  padding: 16px 20px;
  margin-bottom: 16px;
  background: var(--color-bg-page);
  border-radius: 0 4px 4px 0;
}
.outline-item h3 {
  font-size: 18px;
  color: var(--color-primary);
  margin: 0 0 8px 0;
  font-family: "Noto Serif SC", "SimSun", serif;
}
.outline-item p {
  margin: 4px 0;
  color: var(--color-text-secondary);
  line-height: 1.8;
}
.outline-item ol, .outline-item ul {
  margin: 8px 0 0 0;
  padding-left: 20px;
  color: var(--color-text-secondary);
  line-height: 2;
}

/* --- 资金支持方式对比表 --- */
.support-methods {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 24px 0;
}
.support-method-card {
  background: var(--color-bg-page);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 20px;
}
.support-method-card h4 {
  color: var(--color-primary);
  margin: 0 0 8px 0;
  font-size: 17px;
}
.support-method-card .method-tag {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  padding: 2px 10px;
  border-radius: 2px;
  font-size: 13px;
  margin-bottom: 10px;
}
.support-method-card p {
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.8;
  margin: 0;
}

/* --- 栏目页侧边栏布局兼容 --- */
.content-with-sidebar {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 30px;
  align-items: start;
}
.main-content {
  min-width: 0;
}
.sidebar-section {
  margin-bottom: 24px;
}
.sidebar-section h3 {
  font-family: var(--font-serif);
  font-size: var(--font-size-h4);
  color: var(--color-primary);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary);
}
.sidebar-links {
  list-style: none;
  margin: 0;
  padding: 0;
}
.sidebar-links li {
  margin-bottom: 8px;
}
.sidebar-links li a {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  text-decoration: none;
  transition: color 0.2s ease;
}
.sidebar-links li a:hover {
  color: var(--color-link);
}
.sidebar-contact {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 2;
}
.sidebar-contact p {
  margin: 0;
}
.list-info {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  text-align: center;
  padding: 16px 0;
}

/* --- 重点专项领域样式 --- */
.areas-intro {
  text-align: center;
  margin-bottom: 32px;
  padding: 24px;
  background: var(--color-bg-content);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}
.intro-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 16px;
}
.stat-item {
  text-align: center;
}
.stat-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}
.stat-label {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: 4px;
}
.domain-section {
  margin-bottom: 32px;
  background: var(--color-bg-content);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  overflow: hidden;
}
.domain-header {
  background: var(--color-primary);
  color: #ffffff;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.domain-number {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  flex-shrink: 0;
}
.domain-title {
  font-family: var(--font-serif);
  font-size: var(--font-size-h2);
  font-weight: 700;
  flex: 1;
}
.domain-count {
  font-size: var(--font-size-sm);
  background: var(--color-accent);
  padding: 4px 12px;
  border-radius: 20px;
  white-space: nowrap;
}
.domain-body {
  padding: 20px 24px;
}
.area-full-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
}
.area-full-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: #f8f9fc;
  cursor: pointer;
  transition: background 0.2s ease;
}
.area-full-header:hover {
  background: #eef0f5;
}
.area-full-number {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(26, 60, 110, 0.1);
  border-radius: 50%;
  flex-shrink: 0;
}
.area-full-title {
  font-family: var(--font-serif);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  flex: 1;
}
.area-full-tag {
  font-size: var(--font-size-xs);
  color: var(--color-primary);
  background: rgba(26, 60, 110, 0.08);
  padding: 2px 10px;
  border-radius: 12px;
  white-space: nowrap;
}
.area-full-toggle {
  font-size: 12px;
  color: var(--color-text-light);
  transition: transform 0.2s ease;
}
.area-full-card.open .area-full-toggle {
  transform: rotate(180deg);
}
.area-full-body {
  display: none;
  padding: 20px;
  border-top: 1px solid var(--color-border);
}
.area-full-card.open .area-full-body {
  display: block;
}
.area-support-label {
  display: inline-block;
  background: var(--color-accent);
  color: #ffffff;
  padding: 3px 12px;
  border-radius: 2px;
  font-size: var(--font-size-xs);
  margin-bottom: 12px;
}
.area-full-body h4 {
  font-family: var(--font-serif);
  color: var(--color-primary);
  font-size: var(--font-size-base);
  margin: 16px 0 8px;
}
.area-full-body h4:first-of-type {
  margin-top: 0;
}
.area-full-body p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 8px;
}
.area-full-body ul {
  margin: 4px 0 12px;
  padding-left: 20px;
  list-style: disc;
}
.area-full-body ul li {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 2;
}

/* --- 文章内容兼容 --- */
.article-content {
  background: var(--color-bg-content);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  padding: 32px;
}
.article-content .article-meta {
  display: flex;
  gap: 20px;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}
.article-content .article-meta span {
  white-space: nowrap;
}

/* --- 文章详情页兼容 --- */
.article-detail {
  background: var(--color-bg-content);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  padding: 32px;
}
.article-detail .article-meta {
  display: flex;
  gap: 20px;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

/* --- 联系我们卡片样式 --- */
.contact-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin: 32px 0;
}
.contact-card-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px;
  background: var(--color-bg-content);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: box-shadow 0.2s ease;
}
.contact-card-item:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}
.contact-card-icon {
  font-size: 28px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(26, 60, 110, 0.08);
  border-radius: 50%;
  flex-shrink: 0;
}
.contact-card-info {
  flex: 1;
}
.contact-card-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: 4px;
}
.contact-card-value {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  word-break: break-all;
}

@media (max-width: 768px) {
  .support-methods {
    grid-template-columns: 1fr;
  }
  .content-with-sidebar {
    grid-template-columns: 1fr;
  }
  .intro-stats {
    gap: 20px;
  }
  .stat-num {
    font-size: 28px;
  }
  .contact-cards {
    grid-template-columns: 1fr;
  }
  .domain-header {
    flex-wrap: wrap;
  }
  .area-full-header {
    flex-wrap: wrap;
  }
}

/* ========================================
   广告横幅
   ======================================== */
.site-banner {
  max-width: 1200px;
  margin: 16px auto;
  padding: 0 20px;
  text-align: center;
}
.site-banner a {
  display: block;
  border-radius: 4px;
  overflow: hidden;
  transition: box-shadow 0.2s ease;
}
.site-banner a:hover {
  box-shadow: 0 4px 16px rgba(26, 60, 110, 0.15);
}
.site-banner .banner-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
}

/* ========================================
   微信客服浮动组件
   ======================================== */
.wechat-float {
  position: fixed;
  right: 20px;
  bottom: 80px;
  z-index: 9999;
  font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
}
.wechat-float-toggle {
  width: 50px;
  height: 50px;
  background: #07c160;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 2px 12px rgba(7, 193, 96, 0.4);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.wechat-float-toggle:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 20px rgba(7, 193, 96, 0.5);
}
.wechat-float-panel {
  position: absolute;
  right: 60px;
  bottom: 0;
  width: 220px;
  background: #ffffff;
  border-radius: 4px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
  border: 1px solid #e0e4ea;
  display: none;
  overflow: hidden;
}
.wechat-float-panel.active {
  display: block;
  animation: wechatSlideIn 0.2s ease;
}
@keyframes wechatSlideIn {
  from {
    opacity: 0;
    transform: translateX(10px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
.wechat-panel-header {
  background: #07c160;
  color: #ffffff;
  padding: 10px 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  font-weight: 600;
}
.wechat-panel-close {
  background: none;
  border: none;
  color: #ffffff;
  font-size: 20px;
  cursor: pointer;
  line-height: 1;
  padding: 0 2px;
  opacity: 0.8;
  transition: opacity 0.2s;
}
.wechat-panel-close:hover {
  opacity: 1;
}
.wechat-panel-body {
  padding: 16px;
  text-align: center;
}
.wechat-qr-img {
  width: 160px;
  height: auto;
  border: 1px solid #e0e4ea;
  border-radius: 4px;
  margin-bottom: 8px;
}
.wechat-tip {
  font-size: 14px;
  color: #333333;
  margin: 8px 0 2px;
  font-weight: 600;
}
.wechat-tip-sub {
  font-size: 12px;
  color: #999999;
  margin: 0 0 12px;
}
.wechat-phone {
  background: #f5f6fa;
  border-radius: 4px;
  padding: 8px 12px;
  font-size: 13px;
  color: #1a3c6e;
  font-weight: 600;
}
.wechat-phone span {
  white-space: nowrap;
}

/* 微信客服移动端适配 */
@media (max-width: 768px) {
  .site-banner {
    margin: 10px auto;
    padding: 0 10px;
  }
  .wechat-float {
    right: 10px;
    bottom: 60px;
  }
  .wechat-float-toggle {
    width: 44px;
    height: 44px;
  }
  .wechat-float-toggle svg {
    width: 20px;
    height: 20px;
  }
  .wechat-float-panel {
    right: 54px;
    bottom: 0;
    width: 200px;
  }
  .wechat-qr-img {
    width: 140px;
  }
}