/* ==================== 基础样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #2563EB;
    --primary-dark: #1E40AF;
    --primary-light: #3B82F6;
    --success: #10B981;
    --danger: #EF4444;
    --warning: #F59E0B;
    
    --bg: #F8FAFC;
    --card-bg: #FFFFFF;
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --text-muted: #94A3B8;
    --border: #E2E8F0;
    --border-light: #F1F5F9;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --radius: 12px;
    --radius-sm: 8px;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* ==================== 头部 ==================== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.logo-icon {
    width: 32px;
    height: 32px;
    color: var(--primary);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.nav {
    display: flex;
    gap: 8px;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.nav-btn svg {
    width: 18px;
    height: 18px;
}

.nav-btn:hover {
    background: var(--bg);
    color: var(--text-primary);
}

.nav-btn.active {
    background: var(--primary);
    color: white;
}

/* ==================== 主内容区 ==================== */
.main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 24px;
}

.container {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mode-section {
    display: none;
}

.mode-section.active {
    display: block;
}

.page-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.page-desc {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* ==================== 日期网格 ==================== */
.date-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 16px;
}

.date-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.date-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary);
    transform: scaleX(0);
    transition: transform var(--transition);
}

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

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

.date-card.active {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(37, 99, 235, 0.02));
}

.date-card.active::before {
    transform: scaleX(1);
}

.date-main {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.date-sub {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.date-count {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: var(--primary);
    color: white;
    font-size: 0.8125rem;
    font-weight: 500;
    border-radius: 20px;
}

.date-count svg {
    width: 14px;
    height: 14px;
}

/* ==================== 报告列表 ==================== */
.report-list {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.report-list-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.report-list-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

.btn-back {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.btn-back:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-back svg {
    width: 16px;
    height: 16px;
}

.reports-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.report-item {
    display: flex;
    align-items: center;
    padding: 16px;
    background: var(--bg);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.report-item:hover {
    background: var(--border-light);
}

.report-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-right: 16px;
    flex-shrink: 0;
}

.report-icon svg {
    width: 24px;
    height: 24px;
    color: var(--primary);
}

.report-icon.pdf svg {
    color: #EF4444;
}

.report-info {
    flex: 1;
    min-width: 0;
}

.report-name {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.report-time {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.report-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.action-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    background: var(--card-bg);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
}

.action-btn svg {
    width: 18px;
    height: 18px;
    color: var(--text-secondary);
}

.action-btn:hover {
    border-color: var(--primary);
    background: var(--primary);
}

.action-btn:hover svg {
    color: white;
}

.action-btn.danger:hover {
    border-color: var(--danger);
    background: var(--danger);
}

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

.empty-state svg {
    width: 80px;
    height: 80px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.empty-state h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.empty-state p {
    color: var(--text-secondary);
}

/* ==================== 登录表单 ==================== */
.login-form {
    display: flex;
    justify-content: center;
    padding: 40px 0;
}

.login-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px;
    width: 100%;
    max-width: 400px;
    text-align: center;
    box-shadow: var(--shadow-md);
}

.login-icon {
    width: 48px;
    height: 48px;
    color: var(--primary);
    margin-bottom: 16px;
}

.login-card h2 {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.login-tip {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.login-card .form-group {
    margin-bottom: 20px;
}

.form-group input {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: all var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.error-msg {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: 16px;
}

/* ==================== 按钮 ==================== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-primary:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
}

.btn-primary svg {
    width: 18px;
    height: 18px;
}

.btn-block {
    width: 100%;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-secondary svg {
    width: 18px;
    height: 18px;
}

.btn-logout {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-logout:hover {
    border-color: var(--danger);
    color: var(--danger);
}

.btn-logout svg {
    width: 16px;
    height: 16px;
}

.btn-upload {
    margin-top: 20px;
}

.btn-upload svg {
    width: 18px;
    height: 18px;
}

/* ==================== 管理面板 ==================== */
.admin-panel {
    animation: fadeIn 0.3s ease;
}

.admin-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
}

.admin-header h1 {
    font-size: 1.5rem;
}

/* 上传区域 */
.upload-section {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 32px;
}

.upload-section h3 {
    font-size: 1.125rem;
    margin-bottom: 20px;
}

.upload-form {
    max-width: 600px;
}

.form-row {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.form-row label {
    font-weight: 500;
    color: var(--text-primary);
    flex-shrink: 0;
}

.form-row input[type="date"],
.form-row input[type="text"] {
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    font-family: inherit;
    flex: 1;
}

.form-row input[type="date"]:focus {
    outline: none;
    border-color: var(--primary);
}

.upload-area {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition);
}

.upload-area:hover,
.upload-area.dragover {
    border-color: var(--primary);
    background: rgba(37, 99, 235, 0.02);
}

.upload-area svg {
    width: 48px;
    height: 48px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.upload-area p {
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.upload-area .link {
    color: var(--primary);
    font-weight: 500;
}

.upload-area .upload-tip {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.file-list {
    margin-top: 16px;
}

.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--bg);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
}

.file-item-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.file-item-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    border-radius: 6px;
}

.file-item-icon svg {
    width: 18px;
    height: 18px;
    color: var(--primary);
}

.file-item-name {
    font-size: 0.875rem;
    color: var(--text-primary);
}

.file-item-size {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.file-item-remove {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 4px;
    transition: all var(--transition);
}

.file-item-remove:hover {
    background: var(--danger);
    color: white;
}

.file-item-remove svg {
    width: 16px;
    height: 16px;
}

/* 上传进度 */
.upload-progress {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 16px;
}

.progress-bar {
    flex: 1;
    height: 8px;
    background: var(--border);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 4px;
    transition: width 0.3s ease;
    width: 0%;
}

#progress-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
    min-width: 40px;
}

/* 管理端报告列表 */
.reports-section {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
}

.reports-section h3 {
    font-size: 1.125rem;
    margin-bottom: 20px;
}

.admin-reports {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.admin-report-item {
    display: flex;
    align-items: center;
    padding: 16px;
    background: var(--bg);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.admin-report-item:hover {
    background: var(--border-light);
}

.admin-report-info {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 16px;
}

.admin-report-date {
    font-weight: 600;
    color: var(--primary);
    min-width: 100px;
}

.admin-report-name {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.admin-report-size {
    color: var(--text-muted);
    font-size: 0.875rem;
    min-width: 80px;
    text-align: right;
}

.admin-report-actions {
    display: flex;
    gap: 8px;
    margin-left: 16px;
}

/* ==================== 模态框 ==================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

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

.modal-content {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 32px;
    max-width: 90%;
    text-align: center;
    transform: scale(0.9);
    transition: transform var(--transition);
}

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

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    font-size: 24px;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 4px;
    transition: all var(--transition);
}

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

.modal-content h3 {
    font-size: 1.25rem;
    margin-bottom: 24px;
}

.modal-content {
    position: relative;
}

#qrcode {
    display: inline-block;
    padding: 16px;
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
}

.share-filename {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    word-break: break-all;
}

.modal-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
}

/* ==================== Toast ==================== */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 14px 24px;
    background: var(--text-primary);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    opacity: 0;
    transition: all 0.3s ease;
}

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

.toast.success {
    background: var(--success);
}

.toast.error {
    background: var(--danger);
}

/* ==================== 响应式 ==================== */
@media (max-width: 768px) {
    .header-content {
        padding: 0 16px;
    }
    
    .logo-text {
        display: none;
    }
    
    .nav-btn span {
        display: none;
    }
    
    .nav-btn {
        padding: 10px;
    }
    
    .main {
        padding: 20px 16px;
    }
    
    .date-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .date-card {
        padding: 16px;
    }
    
    .report-list-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .report-item {
        flex-wrap: wrap;
    }
    
    .report-actions {
        width: 100%;
        justify-content: flex-end;
        margin-top: 12px;
        padding-top: 12px;
        border-top: 1px solid var(--border);
    }
    
    .admin-report-info {
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .admin-report-date {
        min-width: auto;
    }
    
    .admin-report-size {
        width: 100%;
        text-align: left;
    }
    
    .form-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .modal-content {
        padding: 24px 16px;
        margin: 16px;
    }
}

@media (max-width: 480px) {
    .date-grid {
        grid-template-columns: 1fr;
    }
    
    .login-card {
        padding: 24px;
    }
}

/* ==================== 滚动条 ==================== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

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

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

/* ==================== 选中样式 ==================== */
::selection {
    background: rgba(37, 99, 235, 0.2);
}

/* ==================== 域名阻止页面 ==================== */
.domain-blocked {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

.domain-blocked.active {
    opacity: 1;
    visibility: visible;
}

.domain-blocked-content {
    text-align: center;
    padding: 40px;
    max-width: 400px;
}

.domain-blocked-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: rgba(239, 68, 68, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.domain-blocked-icon svg {
    width: 40px;
    height: 40px;
    color: var(--danger);
}

.domain-blocked h2 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.domain-blocked p {
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.domain-blocked .domain-info {
    font-size: 0.875rem;
    color: var(--text-muted);
    background: var(--border-light);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-top: 20px;
}

/* ==================== 底部版权 ==================== */
.site-footer {
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.875rem;
}