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

:root {
    --primary-gradient: linear-gradient(135deg, #8ecaff 0%, #00f2fe 100%);
    --secondary-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --accent-gradient: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(200, 200, 200, 0.2);
    --glass-shadow: 0 8px 32px 0 rgba(100, 100, 100, 0.1);
    --primary-color: #79bffd;
    --secondary-color: #43e97b;
    --text-primary: #333333;
    --text-secondary: #555555;
    --text-light: #888888;
    --bg-gradient: #b3d9ff;
    --card-bg: rgba(255, 255, 255, 0.98);
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --border-radius-sm: 12px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --border-radius-xl: 32px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(79, 172, 254, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(67, 233, 123, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(168, 237, 234, 0.1) 0%, transparent 40%);
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
    z-index: 1;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    margin-bottom: 30px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    flex-wrap: wrap;
    transition: all var(--transition-normal);
}

header:hover {
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.25);
}

header h1 {
    font-size: 26px;
    margin-right: 20px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    letter-spacing: 1px;
}

nav {
    display: flex;
    gap: 8px;
    flex: 1;
    flex-wrap: wrap;
}

nav a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 14px;
    transition: all var(--transition-normal);
    padding: 10px 18px;
    border-radius: var(--border-radius-sm);
    position: relative;
    overflow: hidden;
    font-weight: 500;
}

nav a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity var(--transition-normal);
    border-radius: var(--border-radius-sm);
}

nav a:hover {
    color: #fff;
}

nav a:hover::before {
    opacity: 1;
}

nav a span {
    position: relative;
    z-index: 1;
}

nav a.active {
    color: #fff;
    background: var(--primary-gradient);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-info a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-normal);
}

.user-info a:hover {
    color: var(--primary-color);
}

.reward-btn {
    background: linear-gradient(135deg, #ff6b6b 0%, #ffa500 100%);
    color: white;
    border: none;
    padding: 10px 18px;
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 2px 8px rgba(255, 107, 107, 0.3);
}

.reward-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 107, 0.4);
}

.reward-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.reward-modal.active {
    display: flex;
}

.reward-modal-content {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 30px;
    max-width: 400px;
    width: 90%;
    text-align: center;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.reward-modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-light);
    transition: color var(--transition-fast);
}

.reward-modal-close:hover {
    color: var(--text-primary);
}

.reward-modal-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.reward-qr-image {
    max-width: 250px;
    width: 100%;
    border-radius: var(--border-radius-sm);
    margin-bottom: 15px;
}

.reward-description {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.user-avatar-link {
    display: block;
    text-decoration: none;
}

.user-avatar-small {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: #fff;
    font-weight: bold;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.user-avatar-small:hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.guest-notice {
    background: var(--primary-gradient);
    padding: 80px 50px;
    margin: 40px 0;
    border-radius: var(--border-radius-xl);
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.4);
    position: relative;
    overflow: hidden;
}

.guest-notice::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    animation: shimmer 3s infinite linear;
}

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

.guest-notice-content {
    text-align: center;
    color: #fff;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.guest-notice-content h2 {
    font-size: 36px;
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.guest-notice-content p {
    font-size: 16px;
    margin-bottom: 35px;
    line-height: 1.8;
    opacity: 0.95;
}

.guest-login-btn,
.guest-register-btn {
    display: inline-block;
    padding: 16px 45px;
    border-radius: var(--border-radius-md);
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    margin: 0 12px;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.guest-login-btn {
    background: #fff;
    color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.guest-login-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.guest-register-btn {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
}

.guest-register-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.notice {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 20px 25px;
    margin-bottom: 25px;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
}

.notice::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--accent-gradient);
    border-radius: 4px 0 0 4px;
}

.notice .highlight {
    color: #f5576c;
    font-weight: bold;
}

.notice .link {
    color: #4facfe;
    text-decoration: underline;
}

.filters {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 25px;
    border-radius: var(--border-radius-lg);
    margin-bottom: 25px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    transition: all var(--transition-normal);
}

.filters:hover {
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.25);
}

.filter-row {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.filter-row input,
.filter-row select {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    background: rgba(255, 255, 255, 0.9);
    color: var(--text-primary);
    transition: all var(--transition-normal);
}

.filter-row input:focus,
.filter-row select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.filter-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.btn-primary,
.btn-secondary {
    padding: 12px 28px;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-normal);
    font-weight: 600;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--primary-gradient);
    color: #fff;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.9);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.total-count {
    margin-left: auto;
    font-size: 14px;
    color: var(--text-secondary);
    background: rgba(200, 200, 200, 0.2);
    padding: 8px 16px;
    border-radius: var(--border-radius-sm);
    backdrop-filter: blur(10px);
}

.table-container {
    overflow-x: auto;
    margin-bottom: 25px;
    position: relative;
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--glass-shadow);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    table-layout: fixed;
}

thead {
    background: var(--primary-gradient);
}

thead th {
    color: #fff;
    font-weight: 600;
}

th,
td {
    padding: 14px 10px;
    text-align: left;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

th {
    font-weight: 600;
    white-space: nowrap;
    position: relative;
    user-select: none;
}

th .resizer {
    position: absolute;
    top: 0;
    right: 0;
    width: 10px;
    height: 100%;
    cursor: col-resize;
    user-select: none;
    z-index: 10;
    background: transparent;
    border-right: 2px solid transparent;
}

th .resizer:hover {
    border-right: 2px solid rgba(255, 255, 255, 0.5);
    background-color: rgba(255, 255, 255, 0.1);
}

th .resizer.resizing {
    border-right: 2px solid #fff;
    background-color: rgba(255, 255, 255, 0.2);
}

td {
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-secondary);
}

tbody tr {
    transition: all var(--transition-fast);
}

tbody tr:hover {
    background: rgba(102, 126, 234, 0.05);
}

tbody tr.viewed {
    background-color: rgba(0, 0, 0, 0.02);
    opacity: 0.7;
}

tbody tr.viewed:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.tag {
    display: inline-block;
    padding: 4px 12px;
    margin: 2px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 20px;
    font-size: 12px;
    color: var(--primary-color);
    transition: all var(--transition-fast);
}

.tag:hover {
    background: var(--primary-gradient);
    color: #fff;
    border-color: transparent;
}

.link-btn {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 12px;
    transition: all var(--transition-fast);
    padding: 4px 8px;
    border-radius: 6px;
}

.link-btn:hover {
    background: rgba(102, 126, 234, 0.1);
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.badge-green {
    background: linear-gradient(135deg, #52c41a 0%, #73d13d 100%);
    color: #fff;
    box-shadow: 0 2px 8px rgba(82, 196, 26, 0.3);
}

.badge-blue {
    background: var(--primary-gradient);
    color: #fff;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.badge-orange {
    background: linear-gradient(135deg, #fa8c16 0%, #ffa940 100%);
    color: #fff;
    box-shadow: 0 2px 8px rgba(250, 140, 22, 0.3);
}

.badge-gray {
    background: rgba(0, 0, 0, 0.1);
    color: var(--text-secondary);
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-top: 25px;
}

.pagination button {
    padding: 10px 20px;
    border: 1px solid rgba(200, 200, 200, 0.3);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    color: var(--text-secondary);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    font-weight: 500;
}

.pagination button:hover:not(:disabled) {
    background: var(--primary-gradient);
    border-color: transparent;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(79, 172, 254, 0.4);
}

.pagination button:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

.pagination span {
    color: var(--text-light);
    font-size: 14px;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--card-bg);
    padding: 35px;
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from { 
        opacity: 0;
        transform: translateY(20px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

.close {
    position: absolute;
    top: 18px;
    right: 22px;
    font-size: 28px;
    font-weight: bold;
    color: var(--text-light);
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.close:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.05);
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 14px;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    transition: all var(--transition-normal);
    background: rgba(255, 255, 255, 0.9);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 25px;
}

.auth-container {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--bg-gradient);
    position: relative;
    overflow: hidden;
}

.auth-container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 30% 70%, rgba(79, 172, 254, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 70% 30%, rgba(67, 233, 123, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(168, 237, 234, 0.1) 0%, transparent 50%);
    animation: float 15s infinite ease-in-out;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(2%, 2%) rotate(5deg); }
    50% { transform: translate(0, 4%) rotate(0deg); }
    75% { transform: translate(-2%, 2%) rotate(-5deg); }
}

.auth-box {
    background: var(--glass-bg);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    padding: 50px 45px;
    border-radius: var(--border-radius-xl);
    box-shadow: 
        0 25px 50px rgba(31, 38, 135, 0.2),
        inset 0 0 0 1px rgba(255, 255, 255, 0.2);
    width: 90%;
    max-width: 420px;
    position: relative;
    z-index: 1;
    border: 1px solid var(--glass-border);
    animation: slideUp 0.5s ease;
}

.auth-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
}

.auth-box h1 {
    text-align: center;
    margin-bottom: 10px;
    font-size: 32px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.auth-box h2 {
    text-align: center;
    margin-bottom: 35px;
    font-size: 18px;
    color: var(--text-light);
    font-weight: 400;
}

.auth-link {
    text-align: center;
    margin-top: 25px;
    font-size: 14px;
    color: var(--text-light);
}

.auth-link a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.auth-link a:hover {
    color: var(--secondary-color);
    text-shadow: 0 0 10px rgba(79, 172, 254, 0.3);
}

.btn-block {
    width: 100%;
}

.action-btn {
    padding: 6px 12px;
    margin: 0 3px;
    border: none;
    background: var(--primary-gradient);
    color: #fff;
    border-radius: 8px;
    cursor: pointer;
    font-size: 12px;
    transition: all var(--transition-normal);
    font-weight: 500;
}

.action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.action-btn.delete {
    background: linear-gradient(135deg, #ff4d4f 0%, #ff7875 100%);
}

.action-btn.delete:hover {
    box-shadow: 0 4px 12px rgba(255, 77, 79, 0.4);
}

.card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    padding: 25px;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 100%);
    pointer-events: none;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(31, 38, 135, 0.2);
}

.card-gradient {
    background: var(--primary-gradient);
    color: #fff;
}

.card-gradient .card-title {
    color: #fff;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.card-content {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

.stats-card {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 25px;
    box-shadow: var(--glass-shadow);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stats-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: var(--primary-gradient);
    opacity: 0.1;
    border-radius: 0 0 0 100%;
}

.stats-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(31, 38, 135, 0.15);
}

.stats-card .stat-title {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 10px;
}

.stats-card .stat-value {
    font-size: 36px;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stats-card .stat-change {
    font-size: 12px;
    color: #52c41a;
    margin-top: 8px;
}

.stats-card .stat-change.negative {
    color: #ff4d4f;
}

.menu-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--glass-shadow);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    color: inherit;
    border: 1px solid rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.menu-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.menu-card:hover::before {
    transform: scaleX(1);
}

.menu-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(31, 38, 135, 0.2);
}

.menu-icon {
    font-size: 48px;
    margin-bottom: 15px;
    display: block;
}

.menu-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.menu-desc {
    font-size: 14px;
    color: var(--text-light);
}

.sidebar-card {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 20px 0;
    box-shadow: var(--glass-shadow);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.sidebar-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-menu-item {
    padding: 15px 25px;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    font-size: 15px;
    border-left: 3px solid transparent;
    position: relative;
}

.sidebar-menu-item:hover {
    background: rgba(102, 126, 234, 0.05);
    color: var(--primary-color);
}

.sidebar-menu-item.active {
    background: linear-gradient(90deg, rgba(102, 126, 234, 0.1) 0%, transparent 100%);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    font-weight: 500;
}

.sidebar-menu-item .icon {
    font-size: 18px;
}

.vip-card {
    background: var(--primary-gradient);
    border-radius: var(--border-radius-lg);
    padding: 35px;
    color: #fff;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.vip-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 60%);
    pointer-events: none;
    animation: shimmer 4s infinite linear;
}

.vip-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 50px rgba(102, 126, 234, 0.4);
}

.vip-card.current {
    background: linear-gradient(135deg, #ffd700 0%, #ffed4e 50%, #ffd700 100%);
    color: #333;
    box-shadow: 0 10px 30px rgba(255, 215, 0, 0.4);
}

.vip-card-title {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
}

.vip-card-price {
    font-size: 42px;
    font-weight: bold;
    margin: 20px 0;
    position: relative;
    z-index: 1;
}

.vip-card-price span {
    font-size: 16px;
    font-weight: normal;
}

.vip-card-features {
    list-style: none;
    padding: 0;
    margin: 20px 0;
    position: relative;
    z-index: 1;
}

.vip-card-features li {
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.vip-card-features li:last-child {
    border-bottom: none;
}

.vip-card.current .vip-card-features li {
    border-bottom-color: rgba(0, 0, 0, 0.1);
}

.btn-purchase {
    width: 100%;
    padding: 14px;
    background: #fff;
    color: var(--primary-color);
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    z-index: 1;
}

.btn-purchase:hover {
    background: #f8f9ff;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.vip-card.current .btn-purchase {
    background: #333;
    color: #ffd700;
}

.vip-card.current .btn-purchase:hover {
    background: #444;
}

.leaderboard-item {
    display: flex;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: all var(--transition-normal);
    gap: 15px;
    background: var(--card-bg);
}

.leaderboard-item:hover {
    background: rgba(102, 126, 234, 0.05);
}

.leaderboard-item:last-child {
    border-bottom: none;
    border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
}

.leaderboard-item:first-child {
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.rank {
    width: 50px;
    flex-shrink: 0;
    text-align: center;
    font-size: 20px;
    font-weight: bold;
    color: var(--text-light);
}

.rank.top1 {
    color: #FFD700;
    font-size: 26px;
    text-shadow: 0 2px 10px rgba(255, 215, 0, 0.3);
}

.rank.top2 {
    color: #C0C0C0;
    font-size: 24px;
    text-shadow: 0 2px 10px rgba(192, 192, 192, 0.3);
}

.rank.top3 {
    color: #CD7F32;
    font-size: 24px;
    text-shadow: 0 2px 10px rgba(205, 127, 50, 0.3);
}

.top-badge {
    flex-shrink: 0;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 500;
    white-space: nowrap;
}

.badge-gold {
    background: linear-gradient(135deg, #fff7e6 0%, #ffe7ba 100%);
    color: #fa8c16;
    border: 1px solid rgba(250, 140, 22, 0.3);
}

.badge-silver {
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    color: #666;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.badge-bronze {
    background: linear-gradient(135deg, #fff2e8 0%, #ffd8bf 100%);
    color: #d4380d;
    border: 1px solid rgba(212, 56, 13, 0.3);
}

.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 0.8s linear infinite;
}

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

.skeleton {
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.1) 25%, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0.1) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--border-radius-sm);
}

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

.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 25px;
    border-radius: var(--border-radius-sm);
    color: #fff;
    font-size: 14px;
    font-weight: 500;
    z-index: 9999;
    animation: slideInRight 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast-success {
    background: linear-gradient(135deg, #52c41a 0%, #73d13d 100%);
}

.toast-error {
    background: linear-gradient(135deg, #ff4d4f 0%, #ff7875 100%);
}

.toast-info {
    background: var(--primary-gradient);
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-light);
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
        padding: 15px 20px;
    }
    
    header h1 {
        font-size: 22px;
    }
    
    nav {
        gap: 8px;
        width: 100%;
    }
    
    nav a {
        padding: 8px 14px;
        font-size: 13px;
    }
    
    .user-info {
        width: 100%;
        justify-content: space-between;
    }
    
    .filters {
        padding: 15px;
        border-radius: var(--border-radius-md);
    }
    
    .filter-row {
        flex-direction: column;
        gap: 10px;
        margin-bottom: 10px;
    }
    
    .filter-row input,
    .filter-row select {
        width: 100%;
    }
    
    .filter-actions {
        flex-direction: column;
        gap: 10px;
    }
    
    .filter-actions button,
    .filter-actions .total-count {
        width: 100%;
        margin-left: 0;
        text-align: center;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        padding: 12px 20px;
    }
    
    .table-container {
        overflow-x: auto;
        margin-bottom: 20px;
        border-radius: var(--border-radius-md);
    }
    
    table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
        font-size: 12px;
    }
    
    thead {
        display: table-header-group;
    }
    
    tbody {
        display: table-row-group;
    }
    
    tr {
        display: table-row;
    }
    
    th, td {
        display: table-cell;
        padding: 10px 8px;
        font-size: 12px;
    }
    
    th {
        min-width: 80px;
    }
    
    .action-btn {
        padding: 5px 8px;
        font-size: 11px;
        margin: 2px 1px;
    }
    
    .tag {
        font-size: 11px;
        padding: 3px 8px;
    }
    
    .badge {
        font-size: 11px;
        padding: 3px 8px;
    }
    
    .link-btn {
        font-size: 11px;
    }
    
    .pagination {
        gap: 10px;
        flex-wrap: wrap;
    }
    
    .pagination button {
        padding: 10px 16px;
        font-size: 13px;
    }
    
    .pagination span {
        font-size: 13px;
    }
    
    .modal-content {
        width: 95%;
        padding: 20px;
        max-height: 85vh;
        border-radius: var(--border-radius-md);
    }
    
    .modal-content h2 {
        font-size: 18px;
    }
    
    .form-group label {
        font-size: 13px;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 14px;
        padding: 12px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions button {
        width: 100%;
    }
    
    .auth-box {
        padding: 30px 25px;
        width: 95%;
        border-radius: var(--border-radius-lg);
    }
    
    .auth-box h1 {
        font-size: 26px;
    }
    
    .auth-box h2 {
        font-size: 16px;
    }
    
    .notice {
        padding: 12px 15px;
        font-size: 13px;
        border-radius: var(--border-radius-sm);
    }
    
    .guest-notice {
        padding: 40px 25px;
        margin: 20px 0;
        border-radius: var(--border-radius-lg);
    }
    
    .guest-notice-content h2 {
        font-size: 26px;
    }
    
    .guest-login-btn,
    .guest-register-btn {
        display: block;
        width: 100%;
        margin: 10px 0;
        padding: 14px 20px;
    }
    
    .card {
        padding: 20px;
        border-radius: var(--border-radius-md);
    }
    
    .stats-card {
        padding: 20px;
        border-radius: var(--border-radius-md);
    }
    
    .stats-card .stat-value {
        font-size: 28px;
    }
    
    .menu-card {
        padding: 25px 20px;
        border-radius: var(--border-radius-md);
    }
    
    .menu-icon {
        font-size: 36px;
    }
    
    .menu-title {
        font-size: 16px;
    }
    
    .vip-card {
        padding: 25px;
        border-radius: var(--border-radius-md);
    }
    
    .vip-card-price {
        font-size: 32px;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 20px;
    }
    
    nav {
        font-size: 12px;
    }
    
    nav a {
        padding: 6px 10px;
    }
    
    .filters {
        padding: 12px;
    }
    
    table {
        font-size: 11px;
    }
    
    th, td {
        padding: 8px 6px;
        font-size: 11px;
    }
    
    .action-btn {
        padding: 4px 6px;
        font-size: 10px;
    }

    .modal-content {
        padding: 15px;
        border-radius: var(--border-radius-sm);
    }

    .auth-box {
        padding: 25px 20px;
        border-radius: var(--border-radius-md);
    }
    
    .auth-box h1 {
        font-size: 24px;
    }
}