/* ============================================ */
/* 🛠️ 工具导航目录 - 2026专业级B2B平台设计 */
/* 参考：阿里巴巴工具市场 / 58同城 / ProductHunt */
/* ============================================ */

:root {
  --tools-primary: #0f1724;
  --tools-accent: #2563eb;
  --tools-accent-light: rgba(37,99,235,0.08);
  --tools-warm: #f97316;
  --tools-bg: #f8fafc;
  --tools-card-bg: #ffffff;
  --tools-border: #e2e8f0;
  --tools-text: #0f172a;
  --tools-text-secondary: #475569;
  --tools-text-muted: #94a3b8;
}

[data-theme="dark"] {
  --tools-primary: #f1f5f9;
  --tools-accent: #60a5fa;
  --tools-accent-light: rgba(96,165,250,0.12);
  --tools-warm: #fb923c;
  --tools-bg: #0f1724;
  --tools-card-bg: #1e293b;
  --tools-border: #334155;
  --tools-text: #f1f5f9;
  --tools-text-secondary: #cbd5e1;
  --tools-text-muted: #64748b;
}

/* ===== HERO区域 ===== */
.tools-hero {
  background: linear-gradient(135deg, #0f1724 0%, #1e293b 50%, #0f1724 100%);
  padding: clamp(60px, 8vw, 90px) clamp(20px, 4vw, 40px) clamp(50px, 6vw, 70px);
  text-align: center;
  position: relative;
  overflow: hidden;
}

[data-theme="dark"] .tools-hero {
  background: linear-gradient(135deg, #000000 0%, #0f1724 50%, #1e293b 100%);
}

.tools-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 25% 30%, rgba(37,99,235,0.15) 0%, transparent 55%),
    radial-gradient(ellipse at 75% 70%, rgba(249,115,22,0.10) 0%, transparent 55%);
  pointer-events: none;
}

.tools-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}

.tools-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.tools-hero h1 {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 800;
  color: #ffffff;
  margin: 0 0 12px;
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.tools-hero p {
  font-size: clamp(15px, 2vw, 18px);
  color: #94a3b8;
  margin: 0 auto 28px;
  max-width: 600px;
  line-height: 1.6;
  position: relative;
}

/* 搜索框 */
.tools-search-wrap {
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

.tools-search-input {
  width: 100%;
  padding: 18px 24px 18px 52px;
  border-radius: 16px;
  border: 2px solid rgba(255,255,255,0.10);
  font-size: 16px;
  outline: none;
  background: rgba(255,255,255,0.06);
  color: #ffffff;
  backdrop-filter: blur(20px);
  box-sizing: border-box;
  transition: all 0.3s cubic-bezier(.4,0,.2,1);
  box-shadow: 0 4px 24px rgba(0,0,0,0.2);
}

.tools-search-input::placeholder {
  color: #64748b;
}

.tools-search-input:focus {
  border-color: rgba(96,165,250,0.6);
  box-shadow:
    0 0 0 4px rgba(96,165,250,0.15),
    0 8px 32px rgba(0,0,0,0.3);
  background: rgba(255,255,255,0.09);
}

.tools-search-icon {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  pointer-events: none;
  opacity: 0.7;
}

/* 统计条 */
.tools-stats-bar {
  display: flex;
  justify-content: center;
  gap: clamp(24px, 4vw, 48px);
  padding: 28px clamp(20px, 4vw, 40px) 0;
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.tools-stat-item {
  text-align: center;
  flex: 1;
  min-width: 120px;
}

.tools-stat-num {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 800;
  color: #ffffff;
  display: block;
  line-height: 1;
  margin-bottom: 6px;
}

.tools-stat-lbl {
  font-size: 13px;
  color: #64748b;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ===== 内容区域 ===== */
.tools-content {
  max-width: 1280px;
  margin: -30px auto 0;
  padding: 0 20px 80px;
  position: relative;
  z-index: 2;
}

/* 操作栏 */
.tools-actions {
  text-align: center;
  margin-bottom: 36px;
  padding-top: 36px;
}

.tools-toggle-all {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  border-radius: 100px;
  border: 2px solid var(--tools-border);
  background: var(--tools-card-bg);
  color: var(--tools-text-secondary);
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.3s cubic-bezier(.4,0,.2,1);
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.tools-toggle-all:hover {
  border-color: var(--tools-accent);
  color: var(--tools-accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(37,99,235,0.15);
}

/* ===== 分类网格 ===== */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(380px, 100%), 1fr));
  gap: 24px;
}

@media (min-width: 1440px) {
  .tools-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .tools-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

/* ===== 分类卡片（现代化设计）===== */
.tools-cat {
  background: var(--tools-card-bg);
  border: 1.5px solid var(--tools-border);
  border-radius: 20px;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(.4,0,.2,1);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  position: relative;
}

.tools-cat::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--tools-accent), var(--tools-warm));
  opacity: 0;
  transition: opacity 0.3s;
}

.tools-cat:hover {
  transform: translateY(-6px);
  border-color: var(--tools-accent);
  box-shadow:
    0 20px 48px rgba(0,0,0,0.12),
    0 0 0 1px var(--tools-accent-light);
}

.tools-cat:hover::before {
  opacity: 1;
}

/* 分类头部 */
.tools-cat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 24px;
  cursor: pointer;
  user-select: none;
  background: linear-gradient(to bottom, var(--tools-bg), transparent);
  border-bottom: 1px solid transparent;
  transition: all 0.3s;
}

.tools-cat-header:hover {
  background: linear-gradient(to bottom, var(--tools-accent-light), transparent);
  border-bottom-color: var(--tools-border);
}

.tools-cat-header h2 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--tools-text);
  display: flex;
  align-items: center;
  gap: 10px;
  line-height: 1.3;
}

.tools-cat-count {
  font-size: 12px;
  color: var(--tools-text-muted);
  font-weight: 500;
  background: var(--tools-accent-light);
  color: var(--tools-accent);
  padding: 4px 12px;
  border-radius: 100px;
  border: 1px solid var(--tools-accent-light);
}

.tools-cat-toggle {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--tools-bg);
  border: 1.5px solid var(--tools-border);
  color: var(--tools-text-muted);
  font-size: 13px;
  transition: all 0.3s;
  flex-shrink: 0;
}

.tools-cat-toggle:hover {
  background: var(--tools-accent-light);
  border-color: var(--tools-accent);
  color: var(--tools-accent);
}

.tools-cat.open .tools-cat-toggle {
  transform: rotate(180deg);
  background: var(--tools-accent);
  border-color: var(--tools-accent);
  color: #ffffff;
}

/* 工具列表容器 */
.tools-cat-items {
  display: none;
  padding: 20px 24px 24px;
  animation: slideDown 0.35s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tools-cat.open .tools-cat-items {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 10px;
}

@media (max-width: 480px) {
  .tools-cat.open .tools-cat-items {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 8px;
  }
}

/* ===== 工具项（带Favicon）===== */
.tools-item {
  display: flex !important;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: var(--tools-bg);
  border: 1.5px solid var(--tools-border);
  border-radius: 12px;
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  color: var(--tools-text-secondary);
  transition: all 0.25s cubic-bezier(.4,0,.2,1);
  position: relative;
  overflow: hidden;
}

.tools-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0;
  background: linear-gradient(90deg, var(--tools-accent-light), transparent);
  transition: width 0.3s;
}

.tools-item:hover {
  background: var(--tools-card-bg);
  border-color: var(--tools-accent);
  color: var(--tools-accent);
  transform: translateX(4px);
  box-shadow: 0 4px 16px rgba(37,99,235,0.12);
}

.tools-item:hover::before {
  width: 4px;
}

/* 工具Favicon图标 */
.tools-item-favicon {
  width: 20px;
  height: 20px;
  border-radius: 6px;
  object-fit: contain;
  flex-shrink: 0;
  background: var(--tools-bg);
  padding: 2px;
  box-sizing: border-box;
  position: relative;
  z-index: 1;
}

.tools-item-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 600;
  position: relative;
  z-index: 1;
}

.tools-item-clicks {
  font-size: 11px;
  color: var(--tools-text-muted);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

/* ===== 空状态 ===== */
.tools-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 20px;
  color: var(--tools-text-muted);
}

.tools-empty-icon {
  font-size: 64px;
  margin-bottom: 20px;
  opacity: 0.4;
  display: inline-block;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.tools-empty h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--tools-text);
  margin: 0 0 10px;
}

.tools-empty p {
  font-size: 15px;
  margin: 0;
  max-width: 400px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ===== 深色模式增强 ===== */
[data-theme="dark"] .tools-cat {
  background: rgba(30,41,59,0.6);
  border-color: rgba(51,65,85,0.6);
  backdrop-filter: blur(20px);
}

[data-theme="dark"] .tools-cat:hover {
  border-color: rgba(96,165,250,0.3);
  box-shadow: 0 20px 48px rgba(0,0,0,0.4);
}

[data-theme="dark"] .tools-cat-header {
  background: linear-gradient(to bottom, rgba(15,23,42,0.5), transparent);
}

[data-theme="dark"] .tools-cat-header:hover {
  background: linear-gradient(to bottom, rgba(37,99,235,0.08), transparent);
}

[data-theme="dark"] .tools-cat-count {
  background: rgba(59,130,246,0.15);
  color: #93c5fd;
  border-color: rgba(59,130,246,0.2);
}

[data-theme="dark"] .tools-cat-toggle {
  background: rgba(51,65,85,0.5);
  border-color: #475569;
}

[data-theme="dark"] .tools-item {
  background: rgba(15,23,36,0.5);
  border-color: rgba(51,65,85,0.5);
  color: #cbd5e1;
}

[data-theme="dark"] .tools-item:hover {
  background: rgba(30,58,95,0.4);
  border-color: #60a5fa;
  color: #93c5fd;
}

[data-theme="dark"] .tools-toggle-all {
  background: rgba(30,41,59,0.6);
  border-color: rgba(51,65,85,0.6);
  color: #cbd5e1;
}

[data-theme="dark"] .tools-toggle-all:hover {
  border-color: #60a5fa;
  color: #93c5fd;
}

/* ===== 响应式优化 ===== */

/* 平板端 */
@media (max-width: 1024px) and (min-width: 769px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .tools-cat.open .tools-cat-items {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
}

/* 手机端 */
@media (max-width: 768px) {
  .tools-hero {
    padding: 48px 20px 40px;
  }

  .tools-hero h1 {
    font-size: 28px;
  }

  .tools-hero p {
    font-size: 14px;
    margin-bottom: 24px;
  }

  .tools-search-input {
    padding: 16px 20px 16px 46px;
    font-size: 15px;
    border-radius: 14px;
  }

  .tools-stats-bar {
    gap: 20px;
    padding: 24px 20px 0;
    flex-wrap: wrap;
  }

  .tools-stat-num {
    font-size: 26px;
  }

  .tools-stat-lbl {
    font-size: 11px;
  }

  .tools-content {
    padding: 0 16px 60px;
  }

  .tools-actions {
    margin-bottom: 28px;
    padding-top: 28px;
  }

  .tools-toggle-all {
    padding: 10px 24px;
    font-size: 13px;
  }

  .tools-cat {
    border-radius: 16px;
  }

  .tools-cat-header {
    padding: 18px 20px;
  }

  .tools-cat-header h2 {
    font-size: 15px;
  }

  .tools-cat-items {
    padding: 16px 20px 20px;
  }

  .tools-item {
    padding: 10px 12px;
    font-size: 12px;
    border-radius: 10px;
  }

  .tools-item-favicon {
    width: 18px;
    height: 18px;
  }
}

/* 超小屏幕 */
@media (max-width: 480px) {
  .tools-hero {
    padding: 36px 16px 32px;
  }

  .tools-hero h1 {
    font-size: 24px;
  }

  .tools-hero p {
    font-size: 13px;
    margin-bottom: 20px;
  }

  .tools-search-input {
    padding: 14px 16px 14px 42px;
    font-size: 14px;
    border-radius: 12px;
  }

  .tools-search-icon {
    left: 16px;
    font-size: 16px;
  }

  .tools-stats-bar {
    gap: 16px;
    padding: 20px 16px 0;
  }

  .tools-stat-num {
    font-size: 22px;
  }

  .tools-stat-lbl {
    font-size: 10px;
  }

  .tools-content {
    padding: 0 12px 48px;
    margin-top: -20px;
  }

  .tools-grid {
    gap: 12px;
  }

  .tools-cat {
    border-radius: 14px;
  }

  .tools-cat-header {
    padding: 16px 16px;
  }

  .tools-cat-header h2 {
    font-size: 14px;
  }

  .tools-cat-toggle {
    width: 30px;
    height: 30px;
    font-size: 12px;
  }

  .tools-cat-items {
    padding: 14px 16px 16px;
    gap: 6px;
  }

  .tools-cat.open .tools-cat-items {
    grid-template-columns: repeat(2, 1fr);
  }

  .tools-item {
    padding: 10px 10px;
    font-size: 11px;
    border-radius: 8px;
    gap: 8px;
  }

  .tools-item-favicon {
    width: 16px;
    height: 16px;
  }

  body {
    padding-bottom: calc(56px + env(safe-area-inset-bottom, 4px)) !important;
  }
}

/* ===== 动画和交互增强 ===== */

/* 卡片入场动画 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tools-cat {
  animation: fadeInUp 0.5s ease-out backwards;
}

.tools-cat:nth-child(1) { animation-delay: 0.05s; }
.tools-cat:nth-child(2) { animation-delay: 0.1s; }
.tools-cat:nth-child(3) { animation-delay: 0.15s; }
.tools-cat:nth-child(4) { animation-delay: 0.2s; }
.tools-cat:nth-child(5) { animation-delay: 0.25s; }
.tools-cat:nth-child(6) { animation-delay: 0.3s; }
.tools-cat:nth-child(7) { animation-delay: 0.35s; }
.tools-cat:nth-child(8) { animation-delay: 0.4s; }

/* 减少动画偏好支持 */
@media (prefers-reduced-motion: reduce) {
  .tools-cat,
  .tools-cat::before,
  .tools-item::before,
  .tools-empty-icon {
    animation: none !important;
    transition-duration: 0.01ms !important;
  }
}