/* ============================================================
   ObtStar Components CSS
   标准化组件样式 - 从各页面提取的共享组件
   ============================================================ */

/* ── 页面加载状态 ───────────────────────────────────── */
.loading-skeleton {
  background: linear-gradient(90deg, var(--bg-subtle) 25%, var(--bg-white) 50%, var(--bg-subtle) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.loading-spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid rgba(79,70,229,0.1);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── 错误提示 ───────────────────────────────────────── */
.error-message {
  padding: 1.25rem;
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.2);
  border-radius: var(--radius-md);
  color: #DC2626;
  text-align: center;
}

.error-message i {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  display: block;
}

/* ── 空状态 ─────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

/* ── 分类云 ─────────────────────────────────────────── */
.category-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.category-cloud-item {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  padding: 1rem 1.5rem;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  color: var(--text-body);
  font-weight: 500;
  transition: all 0.3s ease;
}

.category-cloud-item:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(79,70,229,0.12);
}

.cat-icon { font-size: 1.5rem; }

.cat-count {
  font-size: 0.75rem;
  background: var(--bg-subtle);
  color: var(--text-muted);
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
}

/* ── 精选报告网格 ──────────────────────────────────── */
.featured-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 900px) {
  .featured-grid { grid-template-columns: 1fr; }
}

/* ── 小卡片（精选区域右侧） ─────────────────────────── */
.report-card-sm {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 1.25rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.report-card-sm:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* ── 特色卡片（渐变背景） ───────────────────────────── */
.card-featured {
  background: linear-gradient(135deg, #4F46E5 0%, #7C3AED 100%);
  color: white;
}

.card-featured .report-card-title,
.card-featured .report-card-subtitle,
.card-featured .report-card-summary {
  color: white;
}

/* ── CTA 区域 ───────────────────────────────────────── */
.cta-section {
  background: linear-gradient(135deg, #1E1B4B 0%, #312E81 50%, #4F46E5 100%);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.03) 0%, transparent 50%);
  animation: cta-pulse 8s ease-in-out infinite;
}

@keyframes cta-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

/* ── Hero 仪表盘（首页右侧） ────────────────────────── */
.hero-dashboard {
  position: relative;
  z-index: 1;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.8);
  border-radius: 24px;
  padding: 2rem;
  box-shadow: 0 24px 80px rgba(79,70,229,0.18), 0 4px 24px rgba(0,0,0,0.08);
  max-width: 460px;
  width: 100%;
}

.hero-dashboard-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.dashboard-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

/* ── 迷你卡片（Hero仪表盘内） ───────────────────────── */
.mini-card {
  background: linear-gradient(135deg, #F8FAFF, #F0F4FF);
  border: 1px solid rgba(79,70,229,0.12);
  border-radius: 14px;
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: all 0.3s ease;
  cursor: pointer;
}

.mini-card:hover {
  transform: translateX(4px);
  border-color: rgba(79,70,229,0.3);
}

.mini-card:last-child { margin-bottom: 0; }

.mini-card-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.mini-card-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: #1E293B;
  line-height: 1.3;
}

.mini-card-sub {
  font-size: 0.75rem;
  color: #94A3B8;
  margin-top: 1px;
}

.mini-progress {
  height: 4px;
  background: #E2E8F0;
  border-radius: 2px;
  margin-top: 0.5rem;
  overflow: hidden;
}

.mini-progress-fill {
  height: 100%;
  border-radius: 2px;
  background: linear-gradient(90deg, #4F46E5, #7C3AED);
}

/* ── Hero 装饰球 ───────────────────────────────────── */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.45;
  animation: orb-float 6s ease-in-out infinite;
}

.orb-1 {
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, #4F46E5 0%, #7C3AED 100%);
  top: -60px;
  right: -40px;
  animation-delay: 0s;
}

.orb-2 {
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, #06B6D4 0%, #4F46E5 100%);
  bottom: -30px;
  right: 100px;
  animation-delay: -3s;
}

.orb-3 {
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, #10B981 0%, #06B6D4 100%);
  top: 100px;
  right: 320px;
  animation-delay: -1.5s;
}

@keyframes orb-float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-20px) scale(1.05); }
}

/* ── 滚动提示 ───────────────────────────────────────── */
.scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  text-align: center;
}

.scroll-hint-text {
  font-size: 0.8rem;
  color: #94A3B8;
  margin-bottom: 0.5rem;
  letter-spacing: 0.08em;
}

.scroll-hint-line {
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, #94A3B8, transparent);
  margin: 0 auto;
  animation: scroll-line 1.8s ease-in-out infinite;
}

@keyframes scroll-line {
  0% { opacity: 1; transform: scaleY(1) translateY(0); }
  100% { opacity: 0; transform: scaleY(0.3) translateY(24px); }
}

/* ── 统计卡片 ───────────────────────────────────────── */
.stat-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2rem;
  text-align: center;
  transition: all 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.stat-num {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, #4F46E5, #7C3AED);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}

.stat-label {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* ── 报告详情页布局 ─────────────────────────────────── */
.report-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2.5rem;
  align-items: start;
}

@media (max-width: 1024px) {
  .report-layout {
    grid-template-columns: 1fr;
  }
}

/* ── 侧边栏 ─────────────────────────────────────────── */
.sidebar {
  position: sticky;
  top: 88px;
}

.sidebar-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}

.sidebar-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ── 来源列表 ───────────────────────────────────────── */
.source-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.source-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: var(--radius-md);
  background: var(--bg-subtle);
  transition: all 0.2s ease;
}

.source-item:hover {
  background: rgba(79,70,229,0.08);
}

.source-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.source-info {
  flex: 1;
}

.source-name {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-title);
}

.source-count {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ── 标签云 ─────────────────────────────────────────── */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-cloud-item {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.35rem 0.75rem;
  background: rgba(79,70,229,0.08);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.tag-cloud-item:hover {
  background: rgba(79,70,229,0.15);
  transform: translateY(-1px);
}

.tag-count {
  font-size: 0.7rem;
  opacity: 0.7;
}

/* ── 阅读器布局 ─────────────────────────────────────── */
.reader-layout {
  display: grid;
  grid-template-columns: 260px 1fr 200px;
  gap: 2rem;
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
}

@media (max-width: 1200px) {
  .reader-layout {
    grid-template-columns: 200px 1fr;
  }
  .reader-toc-right {
    display: none;
  }
}

@media (max-width: 768px) {
  .reader-layout {
    grid-template-columns: 1fr;
    padding: 1rem;
  }
  .reader-sidebar {
    display: none;
  }
}

/* ── 内容区域 ───────────────────────────────────────── */
.content-main {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  min-height: 600px;
}

.content-section {
  margin-bottom: 2.5rem;
}

.content-section:last-child {
  margin-bottom: 0;
}

/* ── 语言切换器 ─────────────────────────────────────── */
.lang-switcher {
  display: flex;
  gap: 0.5rem;
  padding: 0.25rem;
  background: var(--bg-subtle);
  border-radius: var(--radius-full);
}

.lang-btn {
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.lang-btn:hover {
  color: var(--text-body);
}

.lang-btn.active {
  background: var(--bg-white);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* ── 页脚 ───────────────────────────────────────────── */
.footer {
  background: linear-gradient(180deg, #0F172A 0%, #1E293B 100%);
  color: rgba(255,255,255,0.7);
  padding: 4rem 0 2rem;
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: 900;
  background: linear-gradient(135deg, #818CF8, #A78BFA);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1rem;
}

.footer h5 {
  color: white;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  letter-spacing: 0.05em;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.625rem;
}

.footer-links a {
  color: rgba(255,255,255,0.6);
  font-size: 0.875rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: 3rem;
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.5);
}

.social-links {
  display: flex;
  gap: 0.75rem;
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  font-size: 1.125rem;
  transition: all 0.2s ease;
}

.social-link:hover {
  background: rgba(255,255,255,0.15);
  color: white;
  transform: translateY(-2px);
}

/* ── 关于页组件 ─────────────────────────────────────── */
.about-hero {
  background: linear-gradient(160deg, #1E1B4B 0%, #312E81 45%, #0F172A 100%);
  padding: 8rem 0 5rem;
  position: relative;
  overflow: hidden;
}

.about-hero::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(99,102,241,0.3) 0%, transparent 65%);
}

.about-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 40px 40px;
}

.about-hero .container {
  position: relative;
  z-index: 1;
}

.mission-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  backdrop-filter: blur(10px);
}

.value-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition);
  text-align: center;
}

.value-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.value-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 1.25rem;
}

.value-title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 0.5rem;
}

.value-desc {
  font-size: 0.9rem;
  color: var(--text-body);
  line-height: 1.7;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.5rem;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  text-decoration: none;
  color: inherit;
}

.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
  color: inherit;
}

.contact-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  font-size: 1.5rem;
  flex-shrink: 0;
}

/* ── 表单样式 ───────────────────────────────────────── */
.contribute-form {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-title);
  margin-bottom: 0.5rem;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-white);
  font-size: 0.9375rem;
  color: var(--text-title);
  font-family: inherit;
  outline: none;
  transition: all var(--transition);
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,0.12);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* ── 时间线 ─────────────────────────────────────────── */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), var(--secondary), var(--accent));
  border-radius: 1px;
}

.timeline-item {
  position: relative;
  padding: 0 0 2.5rem 1.5rem;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -2.375rem;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border: 3px solid var(--bg-base);
  box-shadow: 0 0 0 2px var(--primary);
}

.timeline-date {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 0.375rem;
}

.timeline-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 0.375rem;
}

.timeline-desc {
  font-size: 0.875rem;
  color: var(--text-body);
  line-height: 1.7;
}

/* ── 徽章 ───────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-featured {
  background: rgba(245,158,11,0.15);
  color: #D97706;
}

.badge-new {
  background: rgba(16,185,129,0.15);
  color: #059669;
}

.badge-hot {
  background: rgba(239,68,68,0.15);
  color: #DC2626;
}

/* ── 工具类 ─────────────────────────────────────────── */
.text-gradient {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bg-gradient-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
}

.bg-gradient-hero {
  background: linear-gradient(160deg, #EEF2FF 0%, #F8FAFC 40%, #EDE9FE 100%);
}

.rounded-card {
  border-radius: var(--radius-lg);
}

.shadow-card {
  box-shadow: var(--shadow-md);
}

.border-subtle {
  border: 1px solid var(--border);
}

.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
}

.hover-lift {
  transition: transform var(--transition), box-shadow var(--transition);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}