/* 动画定义 */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes shine {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}

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

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(74, 108, 247, 0.3);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(74, 108, 247, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(74, 108, 247, 0);
  }
}

/* 页面标题区域 */
.page-header {
  text-align: center;
  padding: 40px 20px;
  margin-bottom: 20px;
  position: relative;
  overflow: hidden;
}

.page-header h1 {
  font-size: 2.5rem;
  margin-bottom: 15px;
  font-weight: 800;
  background: linear-gradient(
    135deg,
    var(--primary-color) 0%,
    var(--secondary-color) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
  display: inline-block;
  animation: slideUp 0.8s ease forwards;
}

.page-header p {
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 30px;
  color: var(--text-secondary-light);
  animation: slideUp 0.8s ease 0.2s forwards;
  opacity: 0;
}

body.dark-mode .page-header p {
  color: var(--text-secondary-dark);
}

/* 通知信息样式 */
.notice {
  text-align: center;
  background: linear-gradient(
    135deg,
    var(--primary-color) 0%,
    var(--secondary-color) 100%
  );
  padding: 15px 20px;
  font-size: 15px;
  color: white;
  margin: 0 auto 30px;
  width: 90%;
  max-width: 800px;
  box-sizing: border-box;
  box-shadow: 0 10px 25px -5px rgba(74, 108, 247, 0.3);
  position: relative;
  z-index: 1;
  animation: slideUp 0.6s ease 0.4s forwards;
  opacity: 0;
  border-radius: 12px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.notice::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    135deg,
    transparent 0%,
    rgba(255, 255, 255, 0.1) 100%
  );
  z-index: -1;
  border-radius: 12px;
}

.notice::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  animation: shine 4s linear infinite;
}

.notice p {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  font-weight: 500;
}

.notice p::before {
  content: "\f3ed"; /* FontAwesome 盾牌图标 */
  font-family: "Font Awesome 5 Free";
  font-weight: 900;
  margin-right: 12px;
  font-size: 20px;
  position: relative;
  animation: pulse 2s infinite;
}

/* 工具卡片容器 */
#tool-list {
  display: flex;
  flex-wrap: wrap;
  /*justify-content: center; /* 子元素水平居中 */
  padding: 20px;
  gap: 25px;
  /*max-width: 1200px;*/ /*限制最大宽度*/
  margin: 0 auto;
  position: relative;
}

/* 工具卡片基础样式 */
.tool-card {
  background: rgb(0 0 0 / 25%);
  border-radius: 18px;
  width: 200px;
  height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 20px;
  text-align: center;
  padding: 20px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  opacity: 0;
  animation: slideUp 0.5s ease forwards;
  animation-delay: calc(var(--card-index, 0) * 0.05s + 0.6s);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.04),
    0 15px 35px rgba(74, 108, 247, 0.05);
}

.tool-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--primary-color),
    var(--secondary-color)
  );
  opacity: 0;
  transition: opacity 0.3s ease;
}

.tool-card:hover::before {
  opacity: 1;
}

.tool-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  right: 0;
  width: 60px;
  height: 60px;
  background-image: radial-gradient(
    circle at bottom right,
    rgba(74, 108, 247, 0.08),
    transparent 70%
  );
  border-radius: 0 0 18px 0;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.tool-card:hover::after {
  opacity: 1;
}

body.dark-mode .tool-card {
  background: var(--card-dark);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15),
    0 15px 35px rgba(74, 108, 247, 0.1);
}

.tool-card,
.tool-card * {
  text-decoration: none !important;
}

.tool-card .icon-wrapper {
  position: relative;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.tool-card:hover .icon-wrapper {
  transform: translateY(-5px);
}

.tool-card .icon-bg {
  position: absolute;
  width: 65px;
  height: 65px;
  background: linear-gradient(
    135deg,
    rgba(74, 108, 247, 0.1) 0%,
    rgba(22, 219, 147, 0.1) 100%
  );
  border-radius: 16px;
  transform: rotate(10deg);
  transition: all 0.3s ease;
}

.tool-card:hover .icon-bg {
  transform: rotate(0deg) scale(1.1);
}

.tool-card i {
  font-size: 32px;
  color: var(--primary-color);
  position: relative;
  z-index: 2;
  transition: all 0.3s ease;
}

.tool-card h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-light);
  transition: all 0.3s;
  position: relative;
  z-index: 2;
}

body.dark-mode .tool-card h3 {
  color: var(--text-dark);
}

.tool-card .card-description {
  font-size: 12px;
  color: var(--text-secondary-light);
  margin: 0;
  height: 40px;;
  transition: all 0.3s ease;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-align: left; /* 强制左对齐 */
}

body.dark-mode .tool-card .card-description {
  color: var(--text-secondary-dark);
}

/* 卡片悬停效果 */
.tool-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08),
    0 15px 35px rgba(74, 108, 247, 0.1);
}

body.dark-mode .tool-card:hover {
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2),
    0 15px 35px rgba(74, 108, 247, 0.15);
}

.tool-card:hover h3 {
  color: var(--primary-color);
}

body.dark-mode .tool-card:hover h3 {
  color: var(--primary-light);
}

/* 类别标签 */
.tool-card .category-tag {
  position: absolute;
  top: 15px;
  right: 15px;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 20px;
  background: rgba(74, 108, 247, 0.1);
  color: var(--primary-color);
  font-weight: 500;
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  pointer-events: none;
}

body.dark-mode .tool-card .category-tag {
  background: rgba(74, 108, 247, 0.2);
  color: var(--primary-light);
}

.tool-card:hover .category-tag {
  opacity: 1;
  transform: translateY(0);
}

/* 各工具卡片的独特样式 */
/* JSON格式化工具 */
.tool-card[data-category="format"] i {
  color: #f15a2b;
}

.tool-card[data-category="format"] .icon-bg {
  background: linear-gradient(
    135deg,
    rgba(241, 90, 43, 0.1) 0%,
    rgba(252, 176, 69, 0.1) 100%
  );
}

.tool-card[data-category="format"] .category-tag {
  background: rgba(241, 90, 43, 0.1);
  color: #f15a2b;
}

.tool-card[data-category="format"]::before {
  background: linear-gradient(90deg, #f15a2b, #fcb045);
}

/* 密码生成工具 */
.tool-card[data-category="security"] i {
  color: #16db93;
}

.tool-card[data-category="security"] .icon-bg {
  background: linear-gradient(
    135deg,
    rgba(22, 219, 147, 0.1) 0%,
    rgba(126, 217, 87, 0.1) 100%
  );
}

.tool-card[data-category="security"] .category-tag {
  background: rgba(22, 219, 147, 0.1);
  color: #16db93;
}

.tool-card[data-category="security"]::before {
  background: linear-gradient(90deg, #16db93, #7ed957);
}

/* UUID生成工具 */
.tool-card[data-category="generator"] i {
  color: #4dc9f6;
}

.tool-card[data-category="generator"] .icon-bg {
  background: linear-gradient(
    135deg,
    rgba(77, 201, 246, 0.1) 0%,
    rgba(34, 163, 211, 0.1) 100%
  );
}

.tool-card[data-category="generator"] .category-tag {
  background: rgba(77, 201, 246, 0.1);
  color: #4dc9f6;
}

.tool-card[data-category="generator"]::before {
  background: linear-gradient(90deg, #4dc9f6, #22a3d3);
}

/* 九宫格工具 */
.tool-card[data-category="grid"] i {
  color: #a06af9;
}

.tool-card[data-category="grid"] .icon-bg {
  background: linear-gradient(
    135deg,
    rgba(160, 106, 249, 0.1) 0%,
    rgba(116, 59, 211, 0.1) 100%
  );
}

.tool-card[data-category="grid"] .category-tag {
  background: rgba(160, 106, 249, 0.1);
  color: #a06af9;
}

.tool-card[data-category="grid"]::before {
  background: linear-gradient(90deg, #a06af9, #743bd3);
}

/* Base64转换工具 */
.tool-card[data-category="converter"] i {
  color: #ff9e5e;
}

.tool-card[data-category="converter"] .icon-bg {
  background: linear-gradient(
    135deg,
    rgba(255, 158, 94, 0.1) 0%,
    rgba(255, 179, 64, 0.1) 100%
  );
}

.tool-card[data-category="converter"] .category-tag {
  background: rgba(255, 158, 94, 0.1);
  color: #ff9e5e;
}

.tool-card[data-category="converter"]::before {
  background: linear-gradient(90deg, #ff9e5e, #ffb340);
}

/* Emoji选择器 */
.tool-card[data-category="emoji"] i {
  color: #ffd93d;
}

.tool-card[data-category="emoji"] .icon-bg {
  background: linear-gradient(
    135deg,
    rgba(255, 217, 61, 0.1) 0%,
    rgba(255, 189, 46, 0.1) 100%
  );
}

.tool-card[data-category="emoji"] .category-tag {
  background: rgba(255, 217, 61, 0.1);
  color: #eb9e1d;
}

.tool-card[data-category="emoji"]::before {
  background: linear-gradient(90deg, #ffd93d, #ffbd2e);
}

/* 封面图制作 */
.tool-card[data-category="image"] i {
  color: #f86e6e;
}

.tool-card[data-category="image"] .icon-bg {
  background: linear-gradient(
    135deg,
    rgba(248, 110, 110, 0.1) 0%,
    rgba(255, 89, 89, 0.1) 100%
  );
}

.tool-card[data-category="image"] .category-tag {
  background: rgba(248, 110, 110, 0.1);
  color: #f86e6e;
}

.tool-card[data-category="image"]::before {
  background: linear-gradient(90deg, #f86e6e, #ff5959);
}

/* 字幕截图生成器 */
.tool-card[data-category="subtitle"] i {
  color: #20bfa9;
}

.tool-card[data-category="subtitle"] .icon-bg {
  background: linear-gradient(
    135deg,
    rgba(32, 191, 169, 0.1) 0%,
    rgba(44, 216, 213, 0.1) 100%
  );
}

.tool-card[data-category="subtitle"] .category-tag {
  background: rgba(32, 191, 169, 0.1);
  color: #20bfa9;
}

.tool-card[data-category="subtitle"]::before {
  background: linear-gradient(90deg, #20bfa9, #2cd8d5);
}

/* 全国常用电话号码列表 */
.tool-card[data-category="phone"] i {
  color: #fc44bf;
}
.tool-card[data-category="phone"] .icon-bg {
  background: linear-gradient(
    135deg,
    rgba(32, 191, 169, 0.1) 0%,
    rgba(44, 216, 213, 0.1) 100%
  );
}
.tool-card[data-category="phone"] .category-tag {
  background: rgba(32, 191, 169, 0.1);
  color: #20bfa9;
}
.tool-card[data-category="phone"]::before {
  background: linear-gradient(90deg, #20bfa9, #2cd8d5);
}

/* 特色卡片指示器 */
.featured-indicator {
  position: absolute;
  top: -1px;
  left: 20px;
  background: linear-gradient(135deg, #ff6b6b, #ffe66d);
  color: white;
  padding: 4px 10px;
  font-size: 11px;
  border-radius: 0 0 8px 8px;
  font-weight: 600;
  box-shadow: 0 3px 10px rgba(255, 107, 107, 0.3);
  transform: translateY(-100%);
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 3;
}

.tool-card:hover .featured-indicator {
  transform: translateY(0);
  opacity: 1;
}

.featured-indicator i {
  color: white !important;
  font-size: 11px !important;
  margin-right: 4px;
}

/* 工具分类区域 */
.categories {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 auto 30px;
  max-width: 900px;
  padding: 0 20px;
}

.category-button {
  background: rgba(74, 108, 247, 0.08);
  color: var(--primary-color);
  border: none;
  border-radius: 30px;
  padding: 8px 16px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
  animation: slideUp 0.5s ease forwards;
  opacity: 0;
  animation-delay: calc(var(--btn-index, 0) * 0.05s + 0.5s);
}

.category-button:hover {
  background: rgba(74, 108, 247, 0.15);
  transform: translateY(-2px);
}

.category-button.active {
  background: var(--primary-color);
  color: white;
}

body.dark-mode .category-button {
  background: rgba(74, 108, 247, 0.12);
  color: var(--primary-light);
}

body.dark-mode .category-button:hover {
  background: rgba(74, 108, 247, 0.2);
}

body.dark-mode .category-button.active {
  background: var(--primary-color);
  color: white;
}

/* 工具卡片下方的提示 */
.card-tooltip {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.7);
  color: white;
  padding: 5px 10px;
  border-radius: 5px;
  font-size: 12px;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
  white-space: nowrap;
}

.tool-card:hover .card-tooltip {
  opacity: 1;
  animation: float 2s ease-in-out infinite;
}

/* 空状态 */
.empty-state {
  width: 100%;
  padding: 50px 20px;
  text-align: center;
  display: none;
}

.empty-state img {
  width: 200px;
  height: auto;
  opacity: 0.7;
  margin-bottom: 20px;
}

.empty-state h3 {
  font-size: 20px;
  margin-bottom: 10px;
  color: var(--text-light);
}

.empty-state p {
  color: var(--text-secondary-light);
  max-width: 500px;
  margin: 0 auto;
}

body.dark-mode .empty-state h3 {
  color: var(--text-dark);
}

body.dark-mode .empty-state p {
  color: var(--text-secondary-dark);
}

/* 工具列表上方的统计信息 */
.tools-stats {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-bottom: 30px;
  animation: slideUp 0.5s ease 0.3s forwards;
  opacity: 0;
}

.stats-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 15px 20px;
  border-radius: 12px;
  background: var(--card-light);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.stats-count {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 5px;
}

.stats-label {
  font-size: 14px;
  color: var(--text-secondary-light);
}

body.dark-mode .stats-item {
  background: var(--card-dark);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

body.dark-mode .stats-count {
  color: var(--primary-light);
}

body.dark-mode .stats-label {
  color: var(--text-secondary-dark);
}

/* 装饰元素 */
.decoration {
  position: absolute;
  pointer-events: none;
  z-index: -1;
  opacity: 0.5;
}

.dec-circle {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(74, 108, 247, 0.1) 0%,
    transparent 70%
  );
  top: 10%;
  left: 5%;
  animation: float 8s ease-in-out infinite;
}

.dec-dots {
  width: 180px;
  height: 180px;
  background-image: radial-gradient(
    rgba(74, 108, 247, 0.2) 1px,
    transparent 1px
  );
  background-size: 18px 18px;
  right: 5%;
  top: 20%;
  animation: float 10s ease-in-out infinite;
  animation-delay: 2s;
}

.dec-lines {
  width: 120px;
  height: 120px;
  background: linear-gradient(
      90deg,
      transparent,
      transparent 49%,
      rgba(74, 108, 247, 0.1) 50%,
      transparent 51%,
      transparent
    ),
    linear-gradient(
      0deg,
      transparent,
      transparent 49%,
      rgba(74, 108, 247, 0.1) 50%,
      transparent 51%,
      transparent
    );
  background-size: 20px 20px;
  bottom: 10%;
  left: 10%;
  animation: float 12s ease-in-out infinite;
  animation-delay: 1s;
}

/* 响应式布局 */
@media (max-width: 768px) {
  .page-header h1 {
    font-size: 1.8rem;
  }

  .page-header p {
    font-size: 1rem;
    padding: 0 10px;
  }

  .notice {
    font-size: 13px;
    width: 95%;
    padding: 12px 10px;
  }

  .notice p::before {
    font-size: 18px;
    margin-right: 8px;
  }

  #tool-list {
    gap: 15px;
    padding: 10px;
  }

  .tool-card {
    width: 120px;
    height: 120px;
    padding: 15px;
    gap: 8px;
  }

  .tool-card .icon-wrapper {
    width: 60px;
    height: 60px;
  }

  .tool-card .icon-bg {
    width: 45px;
    height: 45px;
  }

  .tool-card i {
    font-size: 24px;
  }

  .tool-card h3 {
    font-size: 15px;
  }

  .tool-card .card-description {
    font-size: 12px;
    -webkit-line-clamp: 2;
  }

  .category-button {
    padding: 6px 12px;
    font-size: 13px;
  }

  .tools-stats {
    flex-wrap: wrap;
    gap: 15px;
  }

  .stats-item {
    padding: 12px 15px;
  }

  .stats-count {
    font-size: 22px;
  }

  .stats-label {
    font-size: 12px;
  }

  .decoration {
    opacity: 0.3;
    transform: scale(0.7);
  }
}