/* =========================================================
   OSSAF - Open Source Alternative Finder
   自建极简主题样式 (Self-built Minimal Theme Styles)
   ========================================================= */

/* ---------- 重置与基础 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue",
    Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #1f2933;
  background: #f7f8fa;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a {
  color: #1565c0;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px;
}

.main-content {
  flex: 1 0 auto;
  padding: 32px 16px;
}

/* ---------- 开发预览横幅 ---------- */
.dev-preview-banner {
  background: #ff9800;
  color: #ffffff;
  padding: 10px 16px;
  text-align: center;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.3px;
}

/* ---------- 头部 / 导航 ---------- */
.site-header {
  background: #ffffff;
  border-bottom: 1px solid #e1e4e8;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 12px;
  padding-bottom: 12px;
}

.site-logo {
  font-weight: 700;
  font-size: 18px;
  color: #0d47a1;
}
.site-logo:hover {
  text-decoration: none;
}
.logo-text {
  letter-spacing: 0.3px;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 18px;
}
.site-nav a {
  color: #374151;
  font-weight: 500;
  padding: 6px 4px;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover {
  border-bottom-color: #1565c0;
  text-decoration: none;
}

/* 语言切换 */
.lang-switcher {
  position: relative;
}
.lang-toggle {
  background: #f1f3f5;
  border: 1px solid #d0d7de;
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 14px;
  color: #1f2933;
}
.lang-toggle:hover {
  background: #e9ecef;
}
.lang-menu {
  position: absolute;
  right: 0;
  top: 100%;
  min-width: 160px;
  margin: 4px 0 0;
  padding: 6px 0;
  list-style: none;
  background: #ffffff;
  border: 1px solid #e1e4e8;
  border-radius: 6px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
  display: none;
}
.lang-switcher:hover .lang-menu,
.lang-switcher:focus-within .lang-menu {
  display: block;
}
.lang-menu li {
  padding: 6px 14px;
  font-size: 14px;
  color: #1f2933;
}
.lang-menu li.active {
  color: #1565c0;
  font-weight: 600;
  background: #eef4fb;
}
.lang-menu li a {
  color: #1f2933;
  display: block;
}
.lang-menu li a:hover {
  text-decoration: none;
  background: #f1f3f5;
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, #0d47a1 0%, #1976d2 100%);
  color: #ffffff;
  padding: 48px 24px;
  border-radius: 10px;
  margin-bottom: 28px;
  text-align: center;
}
.hero h1 {
  margin: 0 0 12px;
  font-size: 32px;
}
.hero .lead {
  margin: 0;
  font-size: 18px;
  opacity: 0.95;
}

.lead {
  color: #4b5563;
  font-size: 17px;
}

/* ---------- 卡片网格 ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}

.alt-card {
  background: #ffffff;
  border: 1px solid #e1e4e8;
  border-radius: 8px;
  padding: 18px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
  display: flex;
  flex-direction: column;
}
.alt-card:hover {
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}
.alt-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
}
.alt-card-title {
  margin: 0;
  font-size: 18px;
}
.alt-card-title a {
  color: #0d47a1;
}
.alt-card-desc {
  margin: 0 0 12px;
  color: #4b5563;
  font-size: 14px;
}

.alt-card-meta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 10px;
  margin: 0 0 12px;
  font-size: 14px;
}
.alt-card-meta dt {
  color: #6b7280;
  font-weight: 500;
}
.alt-card-meta dd {
  margin: 0;
  color: #1f2933;
}
.alt-name {
  color: #2e7d32;
}

.alt-card-link {
  margin-top: auto;
  font-weight: 600;
  font-size: 14px;
}

/* ---------- 徽章 ---------- */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 12px;
  background: #e5e7eb;
  color: #374151;
  white-space: nowrap;
}
.badge-approved {
  background: #dcfce7;
  color: #166534;
}
.badge-draft {
  background: #fef3c7;
  color: #92400e;
}

/* ---------- AI 内容披露 ---------- */
.ai-disclosure {
  background: #f0f7ff;
  padding: 10px 14px;
  margin: 16px 0;
  border-left: 4px solid #2196f3;
  border-radius: 0 4px 4px 0;
  font-size: 14px;
  color: #1f2933;
}

/* ---------- 详情页 ---------- */
.single-article {
  background: #ffffff;
  border: 1px solid #e1e4e8;
  border-radius: 8px;
  padding: 28px;
}
.article-header {
  border-bottom: 1px solid #e1e4e8;
  padding-bottom: 16px;
  margin-bottom: 20px;
}
.article-header h1 {
  margin: 8px 0;
  font-size: 28px;
}
.breadcrumb {
  margin: 0;
  font-size: 13px;
  color: #6b7280;
}
.meta-list {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 14px;
}
.meta-list li {
  background: #f1f3f5;
  padding: 4px 10px;
  border-radius: 4px;
}
.article-body {
  font-size: 15px;
  line-height: 1.7;
}
.article-body h2 {
  margin-top: 28px;
  border-left: 4px solid #1565c0;
  padding-left: 10px;
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
}
.article-body th,
.article-body td {
  border: 1px solid #e1e4e8;
  padding: 8px 12px;
  text-align: left;
  font-size: 14px;
}
.article-body th {
  background: #f1f3f5;
  font-weight: 600;
}
.article-footer {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid #e1e4e8;
}
.ai-footer-note {
  margin: 0;
  font-size: 13px;
  color: #4b5563;
  background: #f0f7ff;
  padding: 10px;
  border-radius: 4px;
}

/* ---------- 列表页 ---------- */
.list-section {
  margin-bottom: 24px;
}
.list-header {
  margin-bottom: 20px;
}
.list-header h1 {
  margin: 0 0 6px;
  font-size: 26px;
}

/* ---------- 分页 ---------- */
.pagination {
  margin-top: 28px;
}
.pagination ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 6px;
  justify-content: center;
}
.pagination li a,
.pagination li span {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid #e1e4e8;
  border-radius: 4px;
  font-size: 14px;
  background: #ffffff;
  color: #1f2933;
}
.pagination li.active span {
  background: #1565c0;
  color: #ffffff;
  border-color: #1565c0;
}
.pagination li.disabled span {
  color: #9ca3af;
  background: #f9fafb;
}

/* ---------- 底部 ---------- */
.site-footer {
  flex-shrink: 0;
  background: #0d1b2a;
  color: #c9d1d9;
  padding: 32px 0 0;
  margin-top: 40px;
}
.footer-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  padding-bottom: 24px;
}
.footer-col h4 {
  margin: 0 0 10px;
  color: #ffffff;
  font-size: 15px;
}
.footer-col p {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
}
.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-col li {
  margin: 4px 0;
}
.footer-col a {
  color: #9ca3af;
  font-size: 14px;
}
.footer-col a:hover {
  color: #ffffff;
}
.footer-bottom {
  border-top: 1px solid #1f2937;
  padding: 14px 0;
  text-align: center;
  font-size: 13px;
  color: #9ca3af;
}
.footer-bottom p {
  margin: 0;
}

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
  }
  .site-nav {
    order: 3;
    width: 100%;
    margin-top: 8px;
  }
  .site-nav ul {
    justify-content: center;
  }
  .hero {
    padding: 28px 16px;
  }
  .hero h1 {
    font-size: 24px;
  }
  .card-grid {
    grid-template-columns: 1fr;
  }
  .single-article {
    padding: 18px;
  }
  .article-header h1 {
    font-size: 22px;
  }
}