/* ═══════════════════════════════════════════
   TSS Portal — Index Page Styles
   Sections, category tabs, card grids
   ═══════════════════════════════════════════ */

/* ═══ Main container ═══ */
.main {
  max-width: 1240px;
  margin: 0 auto;
  padding: 40px 28px 80px;
}

/* ═══ Section ═══ */
.section {
  margin-bottom: 48px;
  /* 去掉 sectionReveal 入场动画，避免滚动卡顿 */
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.section-icon {
  width: 38px; height: 38px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  /* 去掉 ::after blur 光晕伪元素，性能优化 */
}
.section-icon svg { width: 20px; height: 20px; }

/* ═══ Category Tabs ═══ */
.category-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.cat-tab {
  padding: 7px 18px;
  border-radius: 24px;
  font-size: 0.82rem;
  font-weight: 600;
  border: 1px solid var(--border-light);
  background: var(--glass);
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  user-select: none;
}
.cat-tab:hover {
  border-color: rgba(99,102,241,0.4);
  color: var(--primary-light);
  background: rgba(99,102,241,0.08);
}
.cat-tab.active {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent-purple) 100%);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 2px 12px var(--primary-glow);
}

/* ═══ Link Cards ═══ */
.links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}
.link-card {
  background: var(--bg-card);
  /* 移除 backdrop-filter（每次 hover 都需重绘背景，极耗性能） */
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  text-decoration: none;
  color: inherit;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s;
  position: relative;
}
/* 去掉 ::before mask-composite 渐变边框（昂贵） */
.link-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  border-color: rgba(99,102,241,0.3);
  background: var(--bg-card-hover);
}

.link-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: rgba(99,102,241,0.12);
  color: var(--primary-light);
}
.link-icon svg { width: 20px; height: 20px; }
.link-info { flex: 1; min-width: 0; }
.link-name {
  font-size: 0.92rem;
  font-weight: 700;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.link-desc {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ═══ Tool Cards ═══ */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s;
  display: flex;
  flex-direction: column;
}
.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.28);
  border-color: rgba(99,102,241,0.25);
}

.tool-accent {
  height: 3px;
  width: 100%;
  /* 去掉 shimmer 动画（所有工具卡同时持续动画，非常耗性能） */
}

.tool-body {
  padding: 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.tool-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}
.tool-icon-box {
  width: 50px; height: 50px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}
.tool-icon-box svg { width: 24px; height: 24px; color: #fff; }
.tool-name { font-size: 1.05rem; font-weight: 700; }
.tool-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  color: var(--text-secondary);
  margin-top: 3px;
}
.status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #4b5563;
}
.status-dot.online { background: #22c55e; box-shadow: 0 0 6px #22c55e; }
.status-dot.checking { background: #f59e0b; animation: dotPulse 1.2s infinite; }
@keyframes dotPulse { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }

.tool-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 18px;
}
.tool-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 24px;
  border: none;
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
  /* 去掉 filter:brightness 和 scale，改为简单 opacity */
  transition: opacity 0.15s;
  align-self: flex-start;
  font-family: inherit;
}
.tool-btn:hover { opacity: 0.88; }
.tool-btn svg { width: 16px; height: 16px; }

/* ═══ Project Cards ═══ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.project-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  border-left: 4px solid;
  border-top: 1px solid var(--glass-border);
  border-right: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.project-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(0,0,0,0.22);
}

.project-card-image {
  width: 100%;
  height: 120px;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--bg-secondary);
}
.project-top { margin-bottom: 0; }
.project-name { font-size: 1.08rem; font-weight: 700; }
.project-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ═══ Responsive ═══ */
@media (max-width: 768px) {
  .main { padding: 24px 16px 48px; }
  .links-grid { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); }
  .tools-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .section-header { flex-direction: column; align-items: flex-start; }
}

/* ════════════════════════════════════════
   水平三栏布局 (main.layout-h)
   ════════════════════════════════════════ */
main.layout-h {
  max-width: 1760px;
  padding: 28px 24px 60px;
}

.main-body {
  /* 垂直模式：sections 直接流式排列，无额外布局 */
}

main.layout-h .main-body {
  display: grid;
  gap: 0 20px;
  align-items: start;
}

/* 三栏：侧边固定 300px，中间弹性 */
main.layout-h .main-body.cols-3 {
  grid-template-columns: 300px 1fr 300px;
}

/* 两栏：均分 */
main.layout-h .main-body.cols-2 {
  grid-template-columns: 1fr 1fr;
}

/* 单栏：不变 */
main.layout-h .main-body.cols-1 {
  grid-template-columns: 1fr;
}

/* 水平模式下 section 不留底边距 */
main.layout-h .section {
  margin-bottom: 0;
  padding-bottom: 20px;
}

/* 侧栏 section 标题稍小 */
main.layout-h .col-side .section-title {
  font-size: 1.05rem;
}
main.layout-h .col-side .section-icon {
  width: 32px;
  height: 32px;
}
main.layout-h .col-side .section-icon svg { width: 16px; height: 16px; }

/* 侧栏卡片网格：单列 */
main.layout-h .col-side .links-grid,
main.layout-h .col-side .tools-grid,
main.layout-h .col-side .projects-grid {
  grid-template-columns: 1fr;
}

/* 侧栏链接卡片：更紧凑 */
main.layout-h .col-side .link-card {
  padding: 14px 16px;
  gap: 12px;
}
main.layout-h .col-side .link-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
}
main.layout-h .col-side .link-icon svg { width: 16px; height: 16px; }
main.layout-h .col-side .link-name { font-size: 0.85rem; }
main.layout-h .col-side .link-desc { display: none; }

/* 侧栏工具卡片：精简 */
main.layout-h .col-side .tool-icon-box {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}
main.layout-h .col-side .tool-icon-box svg { width: 18px; height: 18px; }
main.layout-h .col-side .tool-name { font-size: 0.9rem; }
main.layout-h .col-side .tool-desc { font-size: 0.78rem; margin-bottom: 12px; }
main.layout-h .col-side .tool-btn { padding: 8px 16px; font-size: 0.8rem; }

/* 侧栏项目卡片：精简 */
main.layout-h .col-side .project-name { font-size: 0.95rem; }
main.layout-h .col-side .project-desc { -webkit-line-clamp: 1; }

/* 中栏：宽一些的卡片网格 */
main.layout-h .col-center .links-grid {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}
main.layout-h .col-center .tools-grid {
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}
main.layout-h .col-center .projects-grid {
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

/* 侧栏分割线 */
main.layout-h .col-left {
  border-right: 1px solid var(--glass-border);
  padding-right: 20px;
}
main.layout-h .col-right {
  border-left: 1px solid var(--glass-border);
  padding-left: 20px;
}

/* 响应式折叠 */
@media (max-width: 1200px) {
  main.layout-h .main-body.cols-3 {
    grid-template-columns: 260px 1fr;
  }
  main.layout-h .main-body.cols-3 .col-right {
    grid-column: 1 / -1;
    border-left: none;
    border-top: 1px solid var(--glass-border);
    padding-left: 0;
    padding-top: 20px;
  }
  main.layout-h .main-body.cols-3 .col-right .projects-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }
}

@media (max-width: 900px) {
  main.layout-h .main-body.cols-3,
  main.layout-h .main-body.cols-2 {
    grid-template-columns: 1fr;
  }
  main.layout-h .col-left,
  main.layout-h .col-right {
    border: none;
    padding: 0;
  }
  main.layout-h .section {
    margin-bottom: 40px;
    padding-bottom: 0;
  }
}

/* ═══ 链接分类卡片 + Popover ═══ */
.link-cat-card {
  cursor: pointer;
  user-select: none;
}
.link-cat-card.active {
  border-color: var(--primary);
  box-shadow: 0 8px 24px var(--primary-glow, rgba(99,102,241,0.25));
}
.link-cat-card .cat-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(99,102,241,0.15);
  color: var(--primary-light, #818cf8);
  letter-spacing: 0.02em;
}

.link-popover {
  position: fixed;
  width: 320px;
  max-height: 420px;
  background: var(--bg-card-solid, #1c1f2e);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  box-shadow: 0 16px 48px rgba(0,0,0,0.45), 0 0 24px rgba(99,102,241,0.15);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: popoverIn 0.18s cubic-bezier(0.4,0,0.2,1);
}
@keyframes popoverIn {
  from { opacity: 0; transform: translateY(-6px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.link-popover-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border, rgba(255,255,255,0.08));
  background: linear-gradient(135deg, rgba(99,102,241,0.08), rgba(139,92,246,0.05));
}
.link-popover-head svg { width: 18px; height: 18px; color: var(--primary-light, #818cf8); }
.link-popover-title {
  font-weight: 700;
  font-size: 0.92rem;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.link-popover-head .cat-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(99,102,241,0.18);
  color: var(--primary-light, #818cf8);
}
.link-popover-close {
  width: 26px; height: 26px;
  border: none;
  background: var(--bg-secondary, rgba(255,255,255,0.06));
  border-radius: 7px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
}
.link-popover-close:hover { background: rgba(255,255,255,0.12); color: var(--text-primary); }
.link-popover-close svg { width: 14px; height: 14px; }

.link-popover-body {
  overflow-y: auto;
  padding: 6px;
  flex: 1;
}
.popover-link-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 9px;
  text-decoration: none;
  color: inherit;
  transition: background 0.12s;
  cursor: pointer;
  position: relative;
}
.popover-link-row:hover { background: rgba(99,102,241,0.08); }
.popover-link-icon {
  width: 32px; height: 32px;
  border-radius: 9px;
  background: rgba(99,102,241,0.12);
  color: var(--primary-light, #818cf8);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.popover-link-icon svg { width: 15px; height: 15px; }
.popover-link-info { flex: 1; min-width: 0; }
.popover-link-title {
  font-weight: 600;
  font-size: 0.86rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: flex;
  align-items: center;
  gap: 6px;
}
.popover-link-desc {
  font-size: 0.74rem;
  color: var(--text-secondary);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.popover-link-arrow { width: 13px; height: 13px; color: var(--text-secondary); flex-shrink: 0; }
.popover-personal-badge {
  font-size: 0.62rem;
  padding: 1px 6px;
  border-radius: 999px;
  background: rgba(245,158,11,0.18);
  color: #fbbf24;
  font-weight: 600;
}
.popover-link-row.personal { padding-right: 10px; }
.popover-link-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}
.popover-link-actions a,
.popover-link-actions span {
  width: 22px; height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 5px;
  color: var(--text-secondary);
  text-decoration: none;
}
.popover-link-actions a:hover { background: rgba(255,255,255,0.08); color: var(--text-primary); }
.popover-link-actions svg { width: 13px; height: 13px; }
.popover-link-row.add-row { border-top: 1px dashed var(--border, rgba(255,255,255,0.08)); margin-top: 4px; padding-top: 12px; }