/**
 * 现金助力系统 - 全局样式
 * 炫酷迷幻风格 + 清新颜色 + 金币动效
 */

/* ==================== 基础重置 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
    overflow-x: hidden;
}

/* ==================== 动画定义 ==================== */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

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

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes coinDrop {
    0% { transform: translateY(-100px) rotate(0deg); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: translateY(100vh) rotate(360deg); opacity: 0; }
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes scrollUp {
    0% { transform: translateY(100%); }
    100% { transform: translateY(-100%); }
}

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

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ==================== 金币动效 ==================== */
.coin {
    position: fixed;
    width: 30px;
    height: 30px;
    background: linear-gradient(145deg, #FFD700, #FFA500);
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
    z-index: 9999;
    pointer-events: none;
}

.coin::before {
    content: '¥';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 16px;
    font-weight: bold;
    color: #B8860B;
}

.coin-1 { left: 10%; animation: coinDrop 3s linear infinite; animation-delay: 0s; }
.coin-2 { left: 25%; animation: coinDrop 4s linear infinite; animation-delay: 1s; }
.coin-3 { left: 40%; animation: coinDrop 3.5s linear infinite; animation-delay: 0.5s; }
.coin-4 { left: 55%; animation: coinDrop 4.5s linear infinite; animation-delay: 1.5s; }
.coin-5 { left: 70%; animation: coinDrop 3.8s linear infinite; animation-delay: 0.8s; }
.coin-6 { left: 85%; animation: coinDrop 4.2s linear infinite; animation-delay: 2s; }

/* ==================== 容器样式 ==================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.25);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

.card-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #667eea;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* ==================== 按钮样式 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

.btn-success {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(17, 153, 142, 0.4);
}

.btn-success:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(17, 153, 142, 0.5);
}

.btn-danger {
    background: linear-gradient(135deg, #eb3349 0%, #f45c43 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(235, 51, 73, 0.4);
}

.btn-warning {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.btn-info {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
}

.btn-lg {
    padding: 18px 40px;
    font-size: 1.2rem;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* ==================== 表单样式 ==================== */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #555;
    font-size: 0.95rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 14px 18px;
    font-size: 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    background: #fff;
    transition: all 0.3s ease;
    font-family: inherit;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.form-input::placeholder {
    color: #aaa;
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

/* ==================== 导航栏 ==================== */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 10px;
}

.navbar-item {
    padding: 10px 18px;
    color: #666;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 5px;
}

.navbar-item:hover,
.navbar-item.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 10px;
}

/* ==================== 用户信息栏 ==================== */
.user-bar {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #667eea;
}

.user-balance {
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 700;
    color: #8B4513;
    display: flex;
    align-items: center;
    gap: 5px;
}

/* ==================== 统计卡片 ==================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
    border-radius: 16px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: #888;
    font-size: 0.9rem;
    margin-top: 5px;
}

/* ==================== 口令卡片 ==================== */
.code-card {
    background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    border-left: 4px solid #667eea;
    transition: all 0.3s ease;
}

.code-card:hover {
    transform: translateX(5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.code-text {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: 3px;
    color: #667eea;
    font-family: 'Courier New', monospace;
}

.code-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.code-meta {
    color: #888;
    font-size: 0.85rem;
}

/* ==================== 实时滚动通知 ==================== */
.scroll-notice {
    background: linear-gradient(135deg, rgba(255,255,255,0.95) 0%, rgba(248,249,250,0.95) 100%);
    border-radius: 12px;
    padding: 15px 20px;
    margin-bottom: 20px;
    overflow: hidden;
    position: relative;
}

.scroll-notice::before {
    content: '📢';
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
}

.scroll-content {
    margin-left: 35px;
    height: 24px;
    overflow: hidden;
}

.scroll-list {
    animation: scrollUp 10s linear infinite;
}

.scroll-item {
    height: 24px;
    line-height: 24px;
    color: #666;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ==================== 表格样式 ==================== */
.table-container {
    overflow-x: auto;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}

.data-table th,
.data-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.data-table th {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.data-table tr:hover {
    background: #f8f9fa;
}

.data-table td {
    color: #555;
}

/* ==================== 标签样式 ==================== */
.badge {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success {
    background: #d4edda;
    color: #155724;
}

.badge-warning {
    background: #fff3cd;
    color: #856404;
}

.badge-danger {
    background: #f8d7da;
    color: #721c24;
}

.badge-info {
    background: #d1ecf1;
    color: #0c5460;
}

/* ==================== 模态框 ==================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    border-radius: 20px;
    padding: 30px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #333;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #999;
    transition: color 0.3s;
}

.modal-close:hover {
    color: #333;
}

/* ==================== 转盘抽奖 ==================== */
.lottery-container {
    position: relative;
    width: 320px;
    height: 320px;
    margin: 0 auto;
}

.lottery-wheel {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    transition: transform 4s cubic-bezier(0.17, 0.67, 0.12, 0.99);
}

.lottery-pointer {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 60px;
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    clip-path: polygon(50% 100%, 0 0, 100% 0);
    z-index: 10;
    filter: drop-shadow(0 5px 10px rgba(0,0,0,0.3));
}

.lottery-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 5;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s;
}

.lottery-center:hover {
    transform: translate(-50%, -50%) scale(1.1);
}

.lottery-sector {
    position: absolute;
    width: 50%;
    height: 50%;
    transform-origin: right bottom;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
    color: #333;
    padding: 10px;
    text-align: center;
}

/* ==================== 排行榜 ==================== */
.ranking-list {
    list-style: none;
}

.ranking-item {
    display: flex;
    align-items: center;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 12px;
    margin-bottom: 10px;
    transition: all 0.3s;
}

.ranking-item:hover {
    background: #e9ecef;
    transform: translateX(5px);
}

.ranking-rank {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.1rem;
    margin-right: 15px;
}

.ranking-rank.gold {
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    color: #8B4513;
}

.ranking-rank.silver {
    background: linear-gradient(135deg, #C0C0C0 0%, #A9A9A9 100%);
    color: #555;
}

.ranking-rank.bronze {
    background: linear-gradient(135deg, #CD7F32 0%, #B87333 100%);
    color: #fff;
}

.ranking-rank.normal {
    background: #e9ecef;
    color: #666;
}

.ranking-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 15px;
}

.ranking-info {
    flex: 1;
}

.ranking-name {
    font-weight: 600;
    color: #333;
}

.ranking-balance {
    color: #667eea;
    font-weight: 700;
}

/* ==================== 下载页面 ==================== */
.download-section {
    background: linear-gradient(135deg, rgba(255,255,255,0.95) 0%, rgba(248,249,250,0.95) 100%);
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 30px;
    text-align: center;
}

.download-preview {
    max-width: 300px;
    margin: 0 auto 30px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.download-preview img {
    width: 100%;
    height: auto;
    display: block;
}

.download-title {
    font-size: 1.8rem;
    font-weight: 800;
    color: #333;
    margin-bottom: 15px;
}

.download-desc {
    color: #666;
    margin-bottom: 30px;
    line-height: 1.8;
}

/* ==================== 帮助区域 ==================== */
.help-section {
    background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
}

.help-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
}

.help-input {
    max-width: 300px;
    margin: 0 auto 20px;
}

/* ==================== 分页 ==================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 30px;
}

.page-item {
    padding: 10px 16px;
    background: #fff;
    border-radius: 10px;
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.page-item:hover,
.page-item.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.page-item.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ==================== 空状态 ==================== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-icon {
    font-size: 5rem;
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-text {
    color: #888;
    font-size: 1.1rem;
}

/* ==================== 图片上传预览 ==================== */
.upload-preview {
    width: 150px;
    height: 150px;
    border: 3px dashed #ddd;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    overflow: hidden;
    transition: all 0.3s;
    position: relative;
}

.upload-preview:hover {
    border-color: #667eea;
}

.upload-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.upload-placeholder {
    color: #999;
    font-size: 0.9rem;
    text-align: center;
}

/* ==================== 聊天界面 ==================== */
.chat-container {
    height: 400px;
    overflow-y: auto;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 12px;
    margin-bottom: 20px;
}

.chat-message {
    display: flex;
    margin-bottom: 15px;
}

.chat-message.own {
    flex-direction: row-reverse;
}

.chat-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    margin: 0 10px;
}

.chat-bubble {
    max-width: 70%;
    padding: 12px 16px;
    border-radius: 18px;
    word-wrap: break-word;
}

.chat-message:not(.own) .chat-bubble {
    background: #fff;
    color: #333;
    border-bottom-left-radius: 4px;
}

.chat-message.own .chat-bubble {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-bottom-right-radius: 4px;
}

.chat-time {
    font-size: 0.75rem;
    color: #999;
    margin-top: 5px;
    text-align: right;
}

/* ==================== 后台管理侧边栏 ==================== */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 260px;
    background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
    color: white;
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    overflow-y: auto;
    z-index: 1000;
    transition: transform 0.3s ease;
}

.admin-sidebar-header {
    padding: 25px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.admin-sidebar-title {
    font-size: 1.3rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.admin-sidebar-menu {
    padding: 20px 0;
}

.admin-sidebar-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 25px;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: all 0.3s;
    border-left: 4px solid transparent;
}

.admin-sidebar-item:hover,
.admin-sidebar-item.active {
    background: rgba(255,255,255,0.05);
    color: white;
    border-left-color: #667eea;
}

.admin-sidebar-icon {
    font-size: 1.3rem;
    width: 30px;
    text-align: center;
}

.admin-main {
    flex: 1;
    margin-left: 260px;
    padding: 30px;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid rgba(255,255,255,0.1);
}

.admin-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

/* 移动端侧边栏切换 */
.sidebar-toggle {
    display: none;
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1001;
    box-shadow: 0 5px 20px rgba(0,0,0,0.3);
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .container {
        padding: 15px;
    }
    
    .navbar-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 15px;
        box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    }
    
    .navbar-menu.active {
        display: flex;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .navbar-item {
        width: 100%;
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .stat-card {
        padding: 20px 15px;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .card {
        padding: 20px;
    }
    
    .btn-lg {
        padding: 15px 30px;
        font-size: 1rem;
    }
    
    .code-text {
        font-size: 1.5rem;
    }
    
    .code-info {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .lottery-container {
        width: 280px;
        height: 280px;
    }
    
    .admin-sidebar {
        transform: translateX(-100%);
    }
    
    .admin-sidebar.active {
        transform: translateX(0);
    }
    
    .admin-main {
        margin-left: 0;
        padding: 20px;
    }
    
    .sidebar-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .data-table {
        font-size: 0.85rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 10px;
    }
    
    .user-bar {
        gap: 10px;
    }
    
    .user-balance {
        padding: 6px 12px;
        font-size: 0.85rem;
    }
    
    .download-section,
    .help-section {
        padding: 25px 20px;
    }
    
    .download-title {
        font-size: 1.4rem;
    }
    
    .modal-content {
        padding: 20px;
        margin: 20px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .lottery-container {
        width: 240px;
        height: 240px;
    }
    
    .ranking-item {
        padding: 12px;
    }
    
    .ranking-avatar {
        width: 40px;
        height: 40px;
    }
}

/* ==================== 加载动画 ==================== */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: rotate 1s linear infinite;
}

/* ==================== 提示框 ==================== */
.toast {
    position: fixed;
    top: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 15px 30px;
    border-radius: 30px;
    z-index: 3000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.toast.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.toast.success {
    background: rgba(76, 175, 80, 0.9);
}

.toast.error {
    background: rgba(244, 67, 54, 0.9);
}

/* ==================== 进度条 ==================== */
.progress-bar {
    height: 8px;
    background: #e0e0e0;
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 4px;
    transition: width 0.5s ease;
}

/* ==================== 开关样式 ==================== */
.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.switch-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #ccc;
    transition: 0.3s;
    border-radius: 26px;
}

.switch-slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background: white;
    transition: 0.3s;
    border-radius: 50%;
}

.switch input:checked + .switch-slider {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.switch input:checked + .switch-slider:before {
    transform: translateX(24px);
}