/* Tailwind CSS CDN */
@import url('https://cdn.jsdelivr.net/npm/tailwindcss@2.2.19/dist/tailwind.min.css');

/* 自定义 CSS 变量 - 主题色 */
:root {
    --primary: #1a1a2e;
    --primary-light: #16213e;
    --primary-mid: #0f3460;
    --accent: #e94560;
    --bg-light: #f5f5f7;
    --bg-dark: #1a1a2e;
    --bg-darker: #0d0d0d;
    --text-primary: #1d1d1f;
    --text-secondary: #ffffff;
    --text-muted: #86868b;
    --success: #34c759;
    --error: #ff3b30;
    --warning: #ff9500;
    --info: #007aff;
    --font-family: 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition-base: 0.3s ease;
}

/* 主题切换 */
[data-theme="light"] {
    --bg: var(--bg-light);
    --text: var(--text-primary);
    --text-secondary: #1d1d1f;
    --card-bg: #ffffff;
    --card-shadow: 0 2px 12px rgba(0,0,0,0.08);
    --border: rgba(0,0,0,0.08);
    --nav-bg: rgba(255,255,255,0.85);
    --input-bg: #ffffff;
    --hover-bg: rgba(0,0,0,0.04);
}

[data-theme="dark"] {
    --bg: var(--bg-dark);
    --text: #ffffff;
    --text-secondary: #ffffff;
    --card-bg: #2a2a3e;
    --card-shadow: 0 2px 12px rgba(0,0,0,0.3);
    --border: rgba(255,255,255,0.08);
    --nav-bg: rgba(26,26,46,0.9);
    --input-bg: rgba(255,255,255,0.08);
    --hover-bg: rgba(255,255,255,0.05);
}

/* 全局样式重置 */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(128,128,128,0.3);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(128,128,128,0.5);
}

/* 毛玻璃效果 */
.glass {
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.2);
}

[data-theme="dark"] .glass {
    background: rgba(0,0,0,0.2);
    border-color: rgba(255,255,255,0.08);
}

/* 卡片 */
.card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

/* 渐变文本 */
.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 渐变按钮 */
.gradient-btn {
    background: linear-gradient(135deg, var(--primary), var(--primary-mid));
    color: white;
    border: none;
    border-radius: var(--radius-md);
    padding: 10px 24px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.gradient-btn:hover {
    box-shadow: 0 8px 25px rgba(26,26,46,0.3);
    transform: translateY(-1px);
}

.gradient-btn-accent {
    background: linear-gradient(135deg, var(--accent), #c0392b);
    color: white;
}

.gradient-btn-accent:hover {
    box-shadow: 0 8px 25px rgba(233,69,96,0.3);
}

/* 输入框 */
.input-field {
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 10px 16px;
    color: var(--text);
    outline: none;
    width: 100%;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.input-field:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(233,69,96,0.1);
}

/* 骨架屏 */
.skeleton {
    background: linear-gradient(90deg, var(--border) 25%, transparent 50%, var(--border) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* 动画 */
.fade-in {
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes bounceIn {
    0% { transform: scale(0.5); opacity: 0; }
    70% { transform: scale(1.05); }
    100% { transform: scale(1); opacity: 1; }
}

/* 涟漪效果 */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle, rgba(255,255,255,0.3) 10%, transparent 10%);
    background-position: center;
    background-repeat: no-repeat;
    background-size: 1000% 1000%;
    opacity: 0;
    transition: background-size 0.5s, opacity 0.5s;
}

.ripple:active::after {
    background-size: 0 0;
    opacity: 0.3;
    transition: 0s;
}

/* 通知条动画 */
@keyframes slideDown {
    from { transform: translateY(-100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.notification {
    animation: slideDown 0.4s ease-out;
}

/* 响应式工具 */
.hide-scrollbar {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.hide-scrollbar::-webkit-scrollbar {
    display: none;
}

/* 打印样式 */
@media print {
    .no-print { display: none !important; }
}