/**
 * 通用组件样式
 */

/* ---------- 导航栏 ---------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 15, 30, 0.75);
  backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: 1px solid var(--border);
  transition: background var(--duration-fast) ease, box-shadow var(--duration-fast) ease;
}

.navbar.scrolled {
  background: rgba(10, 15, 30, 0.92);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  line-height: 1.2;
}

.logo-icon {
  width: 44px;
  height: 44px;
  object-fit: contain;
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-zh {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.logo-en {
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}

.nav-menu {
  display: flex;
  gap: var(--space-md);
}

.nav-link {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.4rem 0;
  border-bottom: 2px solid transparent;
  transition: color var(--duration-fast) ease, border-color var(--duration-fast) ease, transform var(--duration-fast) ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: transform 0.2s, opacity 0.2s;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg-secondary);
    padding: var(--space-md);
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s ease, opacity 0.25s ease;
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link {
    border-bottom: none;
    padding: 0.75rem 0;
  }
}

/* ---------- 页脚 ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: var(--space-xl) 0;
  margin-top: var(--space-xxl);
  text-align: center;
  color: var(--text-secondary);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: var(--space-sm);
}

.footer-brand strong {
  font-size: 1.25rem;
  color: var(--text-primary);
}

.footer-slogan {
  margin-bottom: var(--space-sm);
}

.footer-copy {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--bg-primary);
  font-weight: 600;
  font-size: 0.95rem;
  transition: background var(--duration-fast) ease, transform var(--duration-fast) var(--ease-spring), box-shadow var(--duration-fast) ease;
}

.btn:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.btn-outline:hover {
  background: var(--accent-soft);
  box-shadow: 0 4px 16px var(--accent-glow);
}

.btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
}

/* ---------- 卡片 ---------- */
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--duration-normal) var(--ease-out), box-shadow var(--duration-normal) var(--ease-out), border-color var(--duration-normal) var(--ease-out);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow), 0 0 0 1px var(--accent-glow);
  border-color: var(--accent-glow);
}

.card-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.card:hover .card-image img {
  transform: scale(1.03);
}

.card-body {
  padding: var(--space-md);
}

.card-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.card-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ---------- 徽章 ---------- */
.badge {
  display: inline-block;
  padding: 0.25rem 0.6rem;
  border-radius: 9999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.badge-outline {
  background: transparent;
  border: 1px solid var(--accent);
}

/* ---------- 轮播 ---------- */
.news-section {
  padding: var(--space-xl) 0;
}

.carousel {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
}

.carousel-track {
  display: flex;
  transition: transform var(--duration-slow) var(--ease-out);
}

.carousel-slide {
  width: 100%;
  flex-shrink: 0;
}

.carousel-link {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
}

.carousel-image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.carousel-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.carousel-content {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.carousel-tag {
  align-self: flex-start;
  padding: 0.35rem 0.75rem;
  border-radius: 9999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.carousel-title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

.carousel-summary {
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.carousel-date {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.7);
  color: var(--text-primary);
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  transition: background 0.2s;
}

.carousel-btn:hover {
  background: rgba(15, 23, 42, 0.95);
}

.carousel-prev {
  left: var(--space-sm);
}

.carousel-next {
  right: var(--space-sm);
}

.carousel-dots {
  position: absolute;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-muted);
  opacity: 0.5;
  transition: opacity 0.2s, background 0.2s;
}

.carousel-dot.active {
  opacity: 1;
  background: var(--accent);
}

@media (max-width: 768px) {
  .carousel-link {
    grid-template-columns: 1fr;
  }

  .carousel-content {
    padding: var(--space-md);
  }

  .carousel-btn {
    display: none;
  }
}

/* ---------- 入口卡片 ---------- */
.entrance-section {
  padding: var(--space-xl) 0;
}

.entrance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
}

.entrance-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 260px;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  transition: transform var(--duration-normal) var(--ease-out), box-shadow var(--duration-normal) var(--ease-out), border-color var(--duration-normal) var(--ease-out);
}

.entrance-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow), 0 0 0 1px var(--accent-glow);
  border-color: var(--accent-glow);
}

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

.entrance-card .bg-image {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.35;
}

.entrance-card .bg-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.entrance-card .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11, 17, 33, 0.95), rgba(11, 17, 33, 0.4));
  z-index: 1;
}

.entrance-card .card-content {
  position: relative;
  z-index: 2;
}

.entrance-card h3 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
}

.entrance-card p {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

/* ---------- 筛选按钮 ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
}

.filter-btn {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: background 0.2s, color 0.2s;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--accent);
  color: var(--bg-primary);
}

/* ---------- 网格布局 ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-md);
}

/* ---------- 成员列表（水平大卡片） ---------- */
.members-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  max-width: 900px;
  margin: 0 auto;
}

.members-list .member-card {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  padding: var(--space-lg);
  gap: var(--space-lg);
  text-align: left;
}

.members-list .member-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  width: 180px;
  flex-shrink: 0;
}

.members-list .member-card .card-image {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  aspect-ratio: 1 / 1;
  border: 2px solid var(--border);
  overflow: hidden;
  transition: border-color var(--duration-normal) var(--ease-out), box-shadow var(--duration-normal) var(--ease-out);
}

.members-list .member-card:hover .card-image {
  border-color: var(--accent-glow);
  box-shadow: 0 0 24px var(--accent-glow);
}

.members-list .member-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.members-list .member-card .card-title {
  font-size: 1.3rem;
  margin-bottom: 0;
}

.members-list .member-right {
  flex: 1;
  display: flex;
  align-items: center;
}

.members-list .member-card .card-text {
  font-size: 1rem;
  line-height: 1.7;
}

/* ---------- 项目列表（水平卡片） ---------- */
.projects-section .grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  max-width: 900px;
  margin: 0 auto;
}

.project-card {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  padding: var(--space-lg);
  gap: var(--space-lg);
  text-align: left;
  cursor: pointer;
}

.project-card .project-left {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-xs);
  width: 220px;
  flex-shrink: 0;
}

.project-card .project-right {
  flex: 1;
  display: flex;
  align-items: center;
}

.project-card .card-title {
  font-size: 1.3rem;
  margin-bottom: 0;
}

.project-card .card-text {
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 0;
}

/* ---------- 项目负责人 ---------- */
.project-leader {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: var(--space-sm) 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.leader-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
}

/* ---------- 文档系列 ---------- */
.series-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  overflow: hidden;
}

.series-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md);
  background: var(--bg-tertiary);
  font-size: 1.1rem;
  font-weight: 600;
  transition: background 0.2s;
}

.series-header:hover {
  background: var(--bg-hover);
}

.series-toggle {
  font-size: 1.4rem;
  color: var(--accent);
  line-height: 1;
}

.series-body {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height var(--duration-normal) var(--ease-out), padding var(--duration-normal) var(--ease-out), opacity var(--duration-normal) var(--ease-out);
  padding: 0 var(--space-md);
}

.series-body.open {
  max-height: 600px;
  padding: var(--space-md);
  opacity: 1;
}

.series-summary {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.doc-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.doc-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-sm);
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
  flex-wrap: wrap;
}

.doc-title {
  font-weight: 500;
}

.doc-actions {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

/* ---------- 不公开文档卡片 ---------- */
.private-doc-card .outline-list {
  margin: var(--space-sm) 0;
  padding-left: 1.2rem;
  list-style: disc;
  color: var(--text-secondary);
}

.private-doc-card .outline-list li {
  margin-bottom: 0.25rem;
}

.private-note {
  display: inline-block;
  margin-top: var(--space-xs);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ---------- 详情页 ---------- */
.detail-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.detail-header {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-lg);
  align-items: center;
  margin-bottom: var(--space-lg);
}

.detail-header img {
  width: 100%;
  border-radius: var(--radius-md);
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.detail-header h2 {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}

.back-link {
  display: inline-block;
  margin-bottom: var(--space-md);
  color: var(--accent);
  font-weight: 500;
}

.back-link:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .detail-header {
    grid-template-columns: 1fr;
  }
}

/* ---------- 关于我们页 ---------- */
.about-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
  padding: var(--space-xl) 0;
}

.about-block:nth-child(even) {
  direction: rtl;
}

.about-block:nth-child(even) > * {
  direction: ltr;
}

.about-block h2 {
  font-size: 1.75rem;
  margin-bottom: var(--space-md);
  color: var(--accent);
}

.about-block p,
.about-block ul {
  color: var(--text-secondary);
}

.about-block ul {
  list-style: disc;
  padding-left: 1.3rem;
}

.about-block li {
  margin-bottom: var(--space-sm);
}

.about-block img {
  border-radius: var(--radius-md);
  aspect-ratio: 16 / 10;
  object-fit: cover;
  width: 100%;
}

@media (max-width: 768px) {
  .about-block {
    grid-template-columns: 1fr;
  }

  .about-block:nth-child(even) {
    direction: ltr;
  }
}