* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: all 0.3s ease;
}

.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    background-color: transparent;
    transition: all 0.3s ease;
}

header {
    text-align: center;
    padding: 40px 20px;
    margin-bottom: 30px;
    background: linear-gradient(135deg, #2193b0, #6dd5ed);
    color: white;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

header h1 {
    font-size: 2.5em;
    margin: 0;
    font-weight: 600;
    letter-spacing: 1px;
    position: relative;
    z-index: 1;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        rgba(255, 255, 255, 0.1) 25%,
        transparent 25%,
        transparent 50%,
        rgba(255, 255, 255, 0.1) 50%,
        rgba(255, 255, 255, 0.1) 75%,
        transparent 75%,
        transparent
    );
    animation: backgroundShift 15s linear infinite;
    background-size: 50px 50px;
    z-index: 0;
}

@keyframes backgroundShift {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

h1 {
    color: var(--header-text);
    font-size: 28px;
}

/* 更新主题颜色变量 */
:root {
    --primary-color: #333;
    --background-color: #f0f2f5;
    --text-color: #333;
    --card-background: #fff;
    --border-color: #ddd;
    --header-background: #fff;
    --header-text: #2c3e50;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --hover-shadow: rgba(0, 0, 0, 0.15);
    --button-hover: #e6e6e6;
    --status-online: #52c41a;
    --status-offline: #ff4d4f;
    --status-checking: #1890ff;
    --card-hover: rgba(0, 0, 0, 0.05);
    --category-bg: #f8f9fa;
    --category-active: #007bff;
    --category-count: #6c757d;
    --speed-fast: #52c41a;
    --speed-medium: #faad14;
    --speed-slow: #ff4d4f;
    --body-background: #f0f2f5;
    --card-shadow: rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    --primary-color: #fff;
    --background-color: #1a1a1a;
    --text-color: #e0e0e0;
    --card-background: #2d2d2d;
    --border-color: #444;
    --header-background: #2d2d2d;
    --header-text: #fff;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --hover-shadow: rgba(0, 0, 0, 0.4);
    --button-hover: #383838;
    --status-online: #73d13d;
    --status-offline: #ff7875;
    --status-checking: #40a9ff;
    --card-hover: rgba(255, 255, 255, 0.05);
    --category-bg: #2d2d2d;
    --category-active: #177ddc;
    --category-count: #888;
    --speed-fast: #73d13d;
    --speed-medium: #ffc53d;
    --speed-slow: #ff7875;
    --body-background: #141414;
    --card-shadow: rgba(0, 0, 0, 0.3);
}

/* 更新全局过渡效果 */
body, .container, .site-card, .category-tab, .status, 
.theme-switch-wrapper, .header, .site-name, .site-eye {
    transition: all 0.3s ease;
}

.control-panel {
    text-align: center;
    padding: 20px 0;
}

.modern-button {
    background: linear-gradient(45deg, #2196F3, #4CAF50);
    border: none;
    padding: 12px 35px;
    border-radius: 30px;
    color: white;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.3);
    position: relative;
    overflow: hidden;
}

.modern-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(33, 150, 243, 0.4);
    background: linear-gradient(45deg, #1e88e5, #43a047);
}

.modern-button:active {
    transform: translateY(1px);
    box-shadow: 0 2px 10px rgba(33, 150, 243, 0.3);
}

.button-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.button-icon {
    font-style: normal;
    display: inline-block;
    transition: transform 0.3s ease;
}

.modern-button:hover .button-icon {
    transform: rotate(180deg);
}

.button-text {
    letter-spacing: 1px;
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

.modern-button::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background-image: radial-gradient(circle, #fff 10%, transparent 10.01%);
    background-repeat: no-repeat;
    background-position: 50%;
    transform: scale(10, 10);
    opacity: 0;
    transition: transform .5s, opacity 1s;
}

.modern-button:active::after {
    transform: scale(0, 0);
    opacity: .3;
    transition: 0s;
}

/* 分类标签样式 */
.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 20px 0;
    padding: 15px;
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.category-tab {
    padding: 8px 16px;
    background-color: var(--category-bg);
    color: var(--category-text);
    border: 1px solid var(--category-border);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
}

.category-tab:hover {
    background-color: var(--category-hover-bg);
    transform: translateY(-2px);
}

.category-tab.active {
    background-color: var(--category-active-bg);
    color: var(--category-active-text);
    border-color: var(--category-active-bg);
}

/* 分类颜色 */
.category-tab[data-category="算法"] {
    border-color: #1890ff;
}

.category-tab[data-category="网站"] {
    border-color: #52c41a;
}

.category-tab[data-category="导航"] {
    border-color: #fa8c16;
}

.category-tab[data-category="工具"] {
    border-color: #722ed1;
}

.category-tab[data-category="all"] {
    border-color: #d9d9d9;
}

/* 分类标签计数 */
.category-count {
    display: inline-block;
    padding: 2px 6px;
    margin-left: 6px;
    background-color: var(--category-count-bg);
    color: var(--category-count-text);
    border-radius: 10px;
    font-size: 0.8em;
    transition: all 0.3s ease;
}

/* 速度等级样式 */
.speed-info {
    display: flex;
    flex-direction: column;
    min-width: 120px;
}

.response-time {
    font-size: 14px;
    color: #7f8c8d;
}

.speed-text {
    font-weight: bold;
    font-size: 13px;
    margin-top: 2px;
}

/* 速度等级颜色 */
.fast .speed-text {
    color: #52c41a; /* 绿色 - 响应快 */
}

.medium .speed-text {
    color: #faad14; /* 黄色 - 响应较慢 */
}

.slow .speed-text {
    color: #fa8c16; /* 橙色 - 响应很慢 */
}

.last-checked {
    font-size: 12px;
    color: #95a5a6;
    min-width: 200px;
    text-align: right;
}

footer {
    text-align: center;
    margin-top: 50px;
    padding: 20px 0;
    color: var(--text-color);
    opacity: 0.8;
}

/* 无网站提示样式 */
.no-sites {
    text-align: center;
    padding: 30px;
    background-color: var(--card-background);
    border-radius: 8px;
    box-shadow: 0 2px 10px var(--shadow-color);
    font-size: 16px;
    color: var(--text-color);
}

/* 网站卡片容器 */
.sites-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 20px;
}

/* 网站卡片样式 */
.site-card {
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px var(--shadow-color);
}

/* 站点信息布局 */
.site-info {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.site-id {
    font-size: 14px;
    color: var(--text-color);
    opacity: 0.7;
}

.site-name {
    font-size: 18px;
    font-weight: bold;
    color: var(--text-color);
    cursor: pointer;
    transition: color 0.3s ease;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 8px;
    transition: color 0.2s ease;
}

.site-name:hover {
    color: #007bff;
    color: #0056b3;
}

/* 站点状态布局 */
.status-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
}

/* 站点状态样式 */
.status {
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: bold;
    transition: all 0.3s ease;
}

.status.online {
    background-color: var(--card-background);
    color: var(--status-online);
    border: 1px solid var(--status-online);
}

[data-theme="dark"] .status.online {
    background-color: rgba(115, 209, 61, 0.1);
    border-color: var(--status-online);
}

.status.offline {
    background-color: var(--card-background);
    color: var(--status-offline);
    border: 1px solid var(--status-offline);
}

[data-theme="dark"] .status.offline {
    background-color: rgba(255, 120, 117, 0.1);
    border-color: var(--status-offline);
}

.status.checking {
    background-color: var(--card-background);
    color: var(--status-checking);
    border: 1px solid var(--status-checking);
}

[data-theme="dark"] .status.checking {
    background-color: rgba(64, 169, 255, 0.1);
    border-color: var(--status-checking);
}

/* 站点备注图标 */
.site-eye {
    cursor: pointer;
    font-size: 16px;
    color: var(--text-color);
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.site-eye:hover {
    opacity: 1;
}

/* 站点备注提示框 */
.note-tooltip {
    position: absolute;
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 14px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    max-width: 200px;
    word-break: break-all;
}

/* 主题切换按钮样式 */
.theme-switch-wrapper {
    position: fixed;
    left: 20px;
    bottom: 20px;
    display: flex;
    align-items: center;
    z-index: 999;
    padding: 10px;
    border-radius: 30px;
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 4px 6px var(--shadow-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(5px);
}

[data-theme="dark"] .theme-switch-wrapper {
    background: rgba(45, 45, 45, 0.9);
}

.theme-switch-wrapper:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
}

.theme-switch {
    display: inline-block;
    height: 34px;
    width: 60px;
    position: relative;
}

.slider {
    background: linear-gradient(to right, #ffd700, #f6f7f8);
    bottom: 0;
    cursor: pointer;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
    transition: .4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    border-radius: 34px;
}

[data-theme="dark"] .slider {
    background: linear-gradient(to right, #192f6a, #4a6cf7);
}

.slider:before {
    background-color: #fff;
    bottom: 4px;
    content: "";
    height: 26px;
    left: 4px;
    position: absolute;
    transition: .4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    width: 26px;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* 太阳/月亮图标样式 */
.slider .sun, 
.slider .moon {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 16px;
    transition: all 0.3s ease;
}

.slider .sun {
    right: 8px;
    opacity: 1;
}

.slider .moon {
    left: 8px;
    opacity: 0;
}

/* 切换效果 */
input:checked + .slider {
    background: linear-gradient(to right, #192f6a, #4a6cf7);
}

input:checked + .slider:before {
    transform: translateX(26px);
    background: #ffffff;
}

input:checked + .slider .sun {
    opacity: 0;
}

input:checked + .slider .moon {
    opacity: 1;
}

/* 悬停效果 */
.theme-switch-wrapper:hover .slider:before {
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.3);
}

/* 点击效果 */
.theme-switch-wrapper:active {
    transform: scale(0.95);
}

/* 添加动画关键帧 */
@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-5px);
    }
    100% {
        transform: translateY(0px);
    }
}

/* 应用悬浮动画 */
.theme-switch-wrapper {
    animation: float 3s ease-in-out infinite;
}

.theme-switch-wrapper:hover {
    animation-play-state: paused;
}

/* 更新滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--background-color);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-color);
}

/* 更新滚动条背景 */
::-webkit-scrollbar-track {
    background: var(--background-color);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .sites-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sites-container {
        grid-template-columns: 1fr;
    }
    
    .site-card {
        padding: 15px;
    }
    
    .site-info {
        margin-bottom: 10px;
    }
    
    .site-id {
        margin-bottom: 5px;
    }
    
    .site-name {
        margin-bottom: 5px;
    }
    
    .site-eye {
        margin-bottom: 10px;
    }
    
    .status-container {
        gap: 10px;
        width: 100%;
    }
    
    .last-checked {
        text-align: left;
        margin-top: 5px;
    }
}

/* 更新按钮样式 */
.check-all-btn {
    background-color: var(--card-background);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.check-all-btn:hover {
    background-color: var(--button-hover);
}
.card {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  margin: 15px;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.card-header {
  padding: 15px 20px;
  border-bottom: 1px solid #eee;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.card-body {
  padding: 20px;
}

.status-badge {
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.status-badge:hover {
  transform: scale(1.05);
}

.status-up {
  background: rgba(40, 167, 69, 0.1);
  color: #28a745;
}

.status-down {
  background: rgba(220, 53, 69, 0.1);
  color: #dc3545;
}

.site-name {
  font-weight: 600;
  color: #2c3e50;
  margin-bottom: 8px;
  transition: color 0.2s ease;
}

.site-name:hover {
  color: #0056b3;
}

.response-time {
  font-size: 14px;
  color: #6c757d;
  display: flex;
  align-items: center;
  gap: 5px;
}

.response-time::before {
  content: '⚡';
  font-size: 12px;
}

@keyframes pulse {
    0% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
    100% {
        opacity: 1;
    }
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    margin-top: 15px;
    font-size: 13px;
    color: #858585;
}