/* GFS线上行 - 备案展示站公共样式 */
:root {
  --primary: #1e3a8a;
  --primary-light: #2552ab;
  --accent: #667eea;
  --bg: #f1f5f9;
  --card: #ffffff;
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --max-width: 960px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--primary-light);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* 顶栏 */
.site-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: #fff;
  box-shadow: 0 2px 12px rgba(30, 58, 138, 0.25);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 0;
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.25rem;
}

.site-logo:hover {
  text-decoration: none;
  opacity: 0.95;
}

.logo-badge {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 20px;
  list-style: none;
}

.site-nav a {
  color: rgba(255, 255, 255, 0.92);
  padding: 8px 4px;
  font-size: 0.95rem;
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a.active {
  color: #fff;
  border-bottom-color: #fff;
  text-decoration: none;
}

/* 主内容 */
main {
  flex: 1;
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: 32px 20px 48px;
}

.page-title {
  font-size: 1.75rem;
  color: var(--primary);
  margin-bottom: 8px;
}

.page-subtitle {
  color: var(--text-muted);
  margin-bottom: 28px;
  font-size: 1rem;
}

/* 首页 Hero */
.hero {
  background: var(--card);
  border-radius: 16px;
  padding: 40px 32px;
  box-shadow: 0 4px 24px rgba(30, 58, 138, 0.08);
  margin-bottom: 28px;
  border: 1px solid var(--border);
}

.hero h1 {
  font-size: 1.85rem;
  color: var(--primary);
  margin-bottom: 12px;
}

.hero .tagline {
  font-size: 1.1rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 16px;
}

.hero p {
  color: var(--text-muted);
  max-width: 640px;
}

/* 卡片网格 */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.card {
  background: var(--card);
  border-radius: 12px;
  padding: 24px;
  border: 1px solid var(--border);
  transition: box-shadow 0.2s;
}

.card:hover {
  box-shadow: 0 8px 24px rgba(30, 58, 138, 0.1);
}

.card h3 {
  font-size: 1.1rem;
  color: var(--primary);
  margin-bottom: 10px;
}

.card p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.card .icon {
  font-size: 1.75rem;
  margin-bottom: 12px;
}

/* 内容区块 */
.content-block {
  background: var(--card);
  border-radius: 12px;
  padding: 28px 32px;
  margin-bottom: 24px;
  border: 1px solid var(--border);
}

.content-block h2 {
  font-size: 1.2rem;
  color: var(--primary);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border);
}

.content-block h3 {
  font-size: 1rem;
  color: var(--text);
  margin: 20px 0 10px;
}

.content-block p,
.content-block li {
  color: var(--text-muted);
  margin-bottom: 10px;
}

.content-block ul,
.content-block ol {
  padding-left: 1.5rem;
  margin-bottom: 12px;
}

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

.rule-divider {
  border: none;
  border-top: 1px dashed var(--border);
  margin: 20px 0;
}

/* 联系信息 */
.contact-list {
  list-style: none;
}

.contact-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 12px;
}

.contact-list li:last-child {
  border-bottom: none;
}

.contact-label {
  font-weight: 600;
  color: var(--text);
  min-width: 80px;
}

/* 页脚 */
.site-footer {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.85);
  padding: 24px 20px;
  font-size: 0.85rem;
  margin-top: auto;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}

.footer-inner a {
  color: rgba(255, 255, 255, 0.9);
}

.footer-links {
  margin-bottom: 10px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.footer-copyright {
  margin-bottom: 8px;
}

.footer-beian a {
  color: rgba(255, 255, 255, 0.88);
  text-decoration: none;
}

.footer-beian a:hover {
  color: #fff;
  text-decoration: underline;
}

.logo-sub {
  font-size: 0.75rem;
  font-weight: 400;
  opacity: 0.85;
  display: block;
  line-height: 1.2;
}

@media (max-width: 600px) {
  .hero {
    padding: 28px 20px;
  }

  .content-block {
    padding: 20px;
  }

  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}