:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --bg-gradient-start: #667eea;
    --bg-gradient-end: #764ba2;
    --sidebar-bg: #1e1b4b;
    --sidebar-hover: #312e81;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --border-color: #e5e7eb;
    --card-bg: #ffffff;
    --page-bg: #f3f4f6;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    min-height: 100vh;
    line-height: 1.6;
    color: var(--text-primary);
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

.login-container {
    max-width: 420px;
    margin: 80px auto;
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: 48px;
    animation: slideUp 0.4s ease-out;
}

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

.login-header {
    text-align: center;
    margin-bottom: 36px;
}

.login-header h1 {
    color: var(--text-primary);
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 14px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 14px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 16px;
    transition: all 0.2s ease;
    outline: none;
    background: var(--card-bg);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    transform: translateY(-1px);
}

.form-group input::placeholder,
.form-group select::placeholder {
    color: var(--text-muted);
}

.btn {
    padding: 14px 28px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    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, 0.2), transparent);
    transition: left 0.5s;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(99, 102, 241, 0.35);
}

.btn-secondary {
    background: var(--page-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-color);
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color), #dc2626);
    color: white;
}

.btn-danger:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(239, 68, 68, 0.3);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

.card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 32px;
    margin-bottom: 24px;
    animation: fadeIn 0.3s ease-out;
}

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

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.card-header h2 {
    color: var(--text-primary);
    font-size: 24px;
    font-weight: 700;
}

.card-header .nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-header .nav-links a {
    padding: 8px 16px;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.card-header .nav-links a:hover {
    color: var(--primary-color);
    background: rgba(99, 102, 241, 0.08);
}

.logout-btn {
    background: rgba(239, 68, 68, 0.08);
    color: var(--danger-color);
    font-weight: 500;
    cursor: pointer;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    border: none;
    font-size: 14px;
}

.logout-btn:hover {
    background: rgba(239, 68, 68, 0.15);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.form-full {
    grid-column: 1 / -1;
}

.success-message {
    background: linear-gradient(135deg, #059669, #10b981);
    color: white;
    padding: 32px;
    border-radius: var(--radius-lg);
    text-align: center;
    margin-bottom: 24px;
    box-shadow: var(--shadow-lg);
    animation: successPulse 0.5s ease-out;
}

@keyframes successPulse {
    0% {
        transform: scale(0.95);
        opacity: 0;
    }
    50% {
        transform: scale(1.02);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.success-message h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
}

.success-message p {
    opacity: 0.9;
    font-size: 15px;
}

.success-message .qr-code {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 2px;
    background: rgba(255, 255, 255, 0.15);
    padding: 14px 20px;
    border-radius: var(--radius-md);
    display: inline-block;
    margin: 16px 0;
    backdrop-filter: blur(4px);
    word-break: break-all;
    word-wrap: break-word;
    max-width: 100%;
}

.qr-image {
    margin: 24px 0;
    text-align: center;
}

.qr-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s ease;
}

.qr-image img:hover {
    transform: scale(1.05);
}

.qr-image p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: 12px;
}

.table-container {
    overflow-x: auto;
    overflow-y: hidden;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    cursor: grab;
    position: relative;
    touch-action: pan-x;
    -ms-touch-action: pan-x;
    user-select: none;
}

.table-container::after {
    content: '← 左右滑动查看更多 →';
    display: block;
    text-align: center;
    padding: 8px 12px;
    font-size: 12px;
    color: var(--text-muted);
    background: linear-gradient(to right, transparent, rgba(248, 249, 250, 0.8), transparent);
    border-top: 1px solid var(--border-color);
}

.table-container::-webkit-scrollbar {
    height: 6px;
}

.table-container::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.table-container::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
}

.table-container::-webkit-scrollbar-thumb:hover {
    background: #a1a1a1;
}

.table-container:active {
    cursor: grabbing;
}

.data-table {
    width: 100%;
    min-width: 600px;
    border-collapse: collapse;
    background: var(--card-bg);
    table-layout: auto;
}

.data-table th,
.data-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background: linear-gradient(135deg, #f9fafb, #f3f4f6);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.6px;
}

.data-table tr {
    transition: all 0.2s ease;
}

.data-table tr:hover {
    background: #f9fafb;
    transform: scale(1.002);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.status-active {
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
}

.status-active::before {
    content: '';
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

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

.status-passed {
    background: rgba(245, 158, 11, 0.1);
    color: #d97706;
}

.status-success {
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
}

.status-failed {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
}

.alert {
    padding: 16px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.08);
    color: var(--danger-color);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.alert-success {
    background: rgba(16, 185, 129, 0.08);
    color: #059669;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.btn-group {
    display: flex;
    gap: 12px;
}

.btn-group .btn {
    flex: 1;
}

.admin-layout {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 260px;
    background: var(--sidebar-bg);
    color: white;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    z-index: 100;
    animation: slideLeft 0.3s ease-out;
}

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

.sidebar-header {
    padding: 28px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h2 {
    font-size: 18px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-light), #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-nav {
    flex: 1;
    padding: 20px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 15px 24px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border-left: 3px solid transparent;
    position: relative;
}

.nav-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(99, 102, 241, 0.1), transparent);
    opacity: 0;
    transition: opacity 0.25s;
}

.nav-item:hover::before {
    opacity: 1;
}

.nav-item:hover {
    background: var(--sidebar-hover);
    color: white;
    padding-left: 28px;
}

.nav-item.active {
    background: rgba(99, 102, 241, 0.15);
    color: white;
    border-left-color: var(--primary-color);
}

.nav-icon {
    margin-right: 14px;
    font-size: 20px;
    transition: transform 0.2s;
}

.nav-item:hover .nav-icon {
    transform: scale(1.1);
}

.sidebar-footer {
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.logout-link {
    display: flex;
    align-items: center;
    padding: 15px 24px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.25s ease;
}

.logout-link:hover {
    background: rgba(239, 68, 68, 0.15);
    color: #fca5a5;
}

.admin-content {
    flex: 1;
    margin-left: 260px;
    padding: 40px;
    background: var(--page-bg);
    min-height: 100vh;
}

.content-header {
    margin-bottom: 36px;
}

.content-header h1 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.content-header p {
    color: var(--text-secondary);
    font-size: 16px;
}

.panel {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: 28px;
    overflow: hidden;
    transition: box-shadow 0.3s ease;
}

.panel:hover {
    box-shadow: var(--shadow-lg);
}

.panel-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(135deg, #fafafa, #ffffff);
}

.panel-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.panel-body {
    padding: 28px;
}

.verify-container {
    max-width: 520px;
    margin: 80px auto;
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: 48px;
    animation: slideUp 0.4s ease-out;
}

.verify-container h2 {
    text-align: center;
    margin-bottom: 32px;
    color: var(--text-primary);
    font-size: 26px;
    font-weight: 700;
}

.verify-result {
    text-align: center;
    padding: 36px;
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    animation: resultPulse 0.5s ease-out;
}

@keyframes resultPulse {
    0% {
        transform: scale(0.9);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.verify-result.success {
    background: linear-gradient(135deg, #059669, #10b981);
    color: white;
}

.verify-result.failed {
    background: linear-gradient(135deg, #dc2626, #ef4444);
    color: white;
}

.verify-icon {
    font-size: 72px;
    margin-bottom: 16px;
    animation: iconBounce 0.6s ease-out;
}

@keyframes iconBounce {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.2);
    }
}

.verify-info {
    background: var(--page-bg);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-top: 24px;
    border: 1px solid var(--border-color);
}

.verify-info-item {
    display: flex;
    justify-content: space-between;
    padding: 14px 0;
    border-bottom: 1px solid var(--border-color);
    transition: background 0.2s;
}

.verify-info-item:hover {
    background: rgba(99, 102, 241, 0.05);
    margin: 0 -12px;
    padding: 14px 12px;
    border-radius: var(--radius-sm);
}

.verify-info-item:last-child {
    border-bottom: none;
}

.verify-info-label {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 14px;
}

.verify-info-value {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 14px;
}

.info-card {
    padding: 16px;
    background: var(--page-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
}

.info-card:hover {
    background: #f9fafb;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.info-card span {
    display: block;
    color: var(--text-muted);
    font-size: 12px;
    margin-bottom: 4px;
}

.info-card p {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 16px;
}

@media (max-width: 768px) {
    .admin-sidebar {
        width: 100%;
        position: sticky;
        top: 0;
        height: auto;
        box-shadow: var(--shadow-lg);
        z-index: 100;
        background: var(--sidebar-bg);
    }
    
    .admin-content {
        margin-left: 0;
        padding: 16px;
        padding-top: 120px;
    }
    
    .admin-layout {
        flex-direction: column;
    }
    
    .sidebar-header {
        padding: 16px 20px;
        text-align: center;
    }
    
    .sidebar-header h2 {
        font-size: 16px;
    }
    
    .sidebar-nav {
        display: flex;
        flex-wrap: nowrap;
        padding: 0;
        overflow-x: auto;
        scrollbar-width: none;
        -ms-overflow-style: none;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .sidebar-nav::-webkit-scrollbar {
        display: none;
    }
    
    .nav-item {
        flex: 0 0 auto;
        min-width: 80px;
        justify-content: center;
        padding: 14px 12px;
        border-left: none;
        border-bottom: 3px solid transparent;
        font-size: 12px;
        transition: all 0.2s ease;
    }
    
    .nav-item .nav-icon {
        font-size: 20px;
        margin-right: 0;
        margin-bottom: 4px;
        display: block;
    }
    
    .nav-item span:last-child {
        display: block;
        margin-top: 4px;
    }
    
    .nav-item:hover {
        padding-left: 12px;
        background: var(--sidebar-hover);
    }
    
    .nav-item.active {
        border-left: none;
        border-bottom-color: var(--primary-color);
        background: rgba(99, 102, 241, 0.15);
    }
    
    .sidebar-footer {
        display: none;
    }
    
    .content-header {
        margin-bottom: 24px;
    }
    
    .content-header h1 {
        font-size: 22px;
        font-weight: 700;
    }
    
    .content-header p {
        font-size: 14px;
    }
    
    .panel {
        margin-bottom: 20px;
        border-radius: var(--radius-md);
    }
    
    .panel-header {
        padding: 16px;
    }
    
    .panel-header h3 {
        font-size: 16px;
    }
    
    .panel-body {
        padding: 16px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .form-group label {
        font-size: 13px;
        margin-bottom: 6px;
    }
    
    .form-group input,
    .form-group select {
        padding: 12px 14px;
        font-size: 14px;
    }
    
    .btn {
        padding: 12px 20px;
        font-size: 14px;
    }
    
    .btn-group {
        flex-direction: column;
        gap: 8px;
    }
    
    .table-container {
        border-radius: var(--radius-sm);
        border: none;
        overflow: hidden;
    }
    
    .data-table {
        font-size: 13px;
    }
    
    .data-table th,
    .data-table td {
        padding: 10px 12px;
        white-space: nowrap;
    }
    
    .data-table th {
        font-size: 11px;
        padding: 10px 8px;
    }
    
    .status-badge {
        padding: 4px 10px;
        font-size: 11px;
    }
}

@media (max-width: 600px) {
    .container {
        padding: 16px;
    }
    
    .login-container {
        padding: 24px 16px;
        margin: 40px 12px;
    }
    
    .login-header h1 {
        font-size: 18px;
        white-space: normal;
        overflow: visible;
        text-overflow: clip;
    }
    
    .card {
        padding: 24px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .verify-container {
        margin: 40px 16px;
        padding: 32px;
    }
    
    .card-header {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }
    
    .card-header .nav-links {
        flex-wrap: wrap;
    }
    
    .data-table th,
    .data-table td {
        padding: 12px 12px;
        font-size: 13px;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .success-message {
        padding: 24px 16px;
    }
    
    .success-message h3 {
        font-size: 22px;
    }
    
    .success-message .qr-code {
        font-size: 13px;
        letter-spacing: 1px;
        padding: 12px 16px;
        line-height: 1.6;
    }
}