:root {
    --primary: #0052D9;
    --primary-hover: #003CAB;
    --primary-light: #ECF2FE;
    --success: #2BA471;
    --success-light: #E8F8F2;
    --warning: #E37318;
    --warning-light: #FEF3E6;
    --danger: #D54941;
    --bg-page: #F3F4F7;
    --bg-card: #FFFFFF;
    --text-primary: #181818;
    --text-regular: #4E5969;
    --text-secondary: #86909C;
    --border-color: #E5E6EB;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background-color: var(--bg-page);
    color: var(--text-primary);
    line-height: 1.5;
    font-size: 14px;
}

/* 顶部通知 Toast */
.app-toast {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(-30px);
    background: #181818;
    color: #FFFFFF;
    padding: 10px 24px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s cubic-bezier(0.18, 0.89, 0.32, 1.28);
    z-index: 9999;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.app-toast.success {
    background: #0052D9;
}

.app-toast.error {
    background: #D54941;
}

/* 顶部导航 */
.app-header {
    height: 64px;
    background: #FFFFFF;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 28px;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.title-box {
    display: flex;
    flex-direction: column;
}

.main-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
}

.sub-title {
    font-size: 11px;
    color: var(--text-secondary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.wecom-badge {
    background: #E8F4FF;
    color: #0066EC;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
    border: 1px solid rgba(0, 102, 236, 0.2);
}

.server-time {
    font-size: 13px;
    font-family: Consolas, monospace;
    color: var(--text-secondary);
}

/* 主容器 */
.app-container {
    max-width: 1280px;
    margin: 24px auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 24px;
}

/* 侧边栏：账号管理 */
.sidebar-panel {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: 20px;
    height: fit-content;
    box-shadow: var(--shadow-sm);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.panel-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.panel-desc {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.account-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.account-card {
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    background: #FAFAFC;
    position: relative;
}

.account-card:hover {
    border-color: #B5CDF9;
    background: #FFFFFF;
}

.account-card.active {
    border-color: var(--primary);
    background: #F2F7FF;
    box-shadow: 0 2px 8px rgba(0, 82, 217, 0.12);
}

.account-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.account-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
}

.status-badge {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 500;
}

.status-badge.logged-in {
    background: var(--success-light);
    color: var(--success);
    border: 1px solid rgba(43, 164, 113, 0.3);
}

.status-badge.logged-out {
    background: var(--warning-light);
    color: var(--warning);
    border: 1px solid rgba(227, 115, 24, 0.3);
}

.status-badge.waiting {
    background: #E8F4FF;
    color: var(--primary);
    border: 1px solid rgba(0, 82, 217, 0.3);
}

.account-meta {
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.account-actions {
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px dashed var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.wecom-card {
    margin-top: 24px;
    background: #F4F8FE;
    border: 1px solid #D2E4FD;
    border-radius: var(--radius-md);
    padding: 14px;
    font-size: 12px;
    color: #3B5B88;
}

.wecom-card-title {
    font-weight: 600;
    margin-bottom: 6px;
    color: #1A3F74;
}

/* 主面板 */
.main-panel {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.card-header-bar {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 14px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.active-account-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.active-account-indicator .label {
    color: var(--text-secondary);
}

.active-account-indicator .name {
    font-weight: 600;
    color: var(--text-primary);
}

.active-account-indicator .badge {
    font-size: 12px;
    padding: 2px 10px;
    border-radius: 12px;
}

/* 警告横条 */
.unauthorized-banner {
    background: var(--warning-light);
    border: 1px solid #FFD591;
    border-radius: var(--radius-md);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.banner-icon {
    font-size: 28px;
}

.banner-content {
    flex: 1;
}

.banner-content h4 {
    font-size: 15px;
    margin-bottom: 4px;
    color: #873800;
}

.banner-content p {
    font-size: 13px;
    color: #AD4E00;
}

/* 预约卡片 */
.booking-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: 28px;
    box-shadow: var(--shadow-sm);
}

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

.form-title h2 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 4px;
}

.form-title .hint {
    font-size: 13px;
    color: var(--text-secondary);
}

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

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

.required {
    color: var(--danger);
}

.form-row {
    display: flex;
    gap: 16px;
}

.flex-1 {
    flex: 1;
}

.form-control {
    width: 100%;
    height: 40px;
    padding: 0 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-primary);
    background: #FFFFFF;
    transition: all 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 82, 217, 0.15);
}

.form-control[readonly] {
    background: #F7F8FA;
    color: var(--text-secondary);
}

/* 时长选择器 Header 与 Badge */
.duration-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.duration-badge {
    font-size: 12px;
    color: var(--primary);
    font-weight: 500;
    background: #E8F4FF;
    padding: 3px 12px;
    border-radius: 12px;
    border: 1px solid rgba(0, 82, 217, 0.15);
    transition: all 0.2s ease;
}

.duration-badge.invalid {
    color: #D54941;
    background: #FFF0ED;
    border-color: rgba(213, 73, 65, 0.3);
}

/* 时长选择器 Chip */
.duration-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.duration-chip {
    padding: 8px 18px;
    border: 1px solid var(--border-color);
    background: #FFFFFF;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 13px;
    transition: all 0.15s;
}

.duration-chip:hover {
    border-color: #B5CDF9;
    color: var(--primary);
}

.duration-chip.active {
    background: var(--primary);
    color: #FFFFFF;
    border-color: var(--primary);
    font-weight: 500;
}

.form-divider {
    height: 1px;
    background: var(--border-color);
    margin: 24px 0;
}

.checkbox-row, .checkbox-label, .radio-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    cursor: pointer;
}

.radio-group, .checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* 按钮通用 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 20px;
    height: 40px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
    text-decoration: none;
}

.btn-sm {
    padding: 0 12px;
    height: 30px;
    font-size: 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.btn-large {
    height: 48px;
    font-size: 16px;
    padding: 0 36px;
}

.btn-primary {
    background: var(--primary);
    color: #FFFFFF;
}

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

.btn-outline {
    background: #FFFFFF;
    color: var(--text-regular);
    border: 1px solid var(--border-color);
}

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

.btn-warning {
    background: var(--warning);
    color: #FFFFFF;
}

.btn-warning:hover {
    background: #C96010;
}

.btn-block {
    width: 100%;
}

.btn-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary);
}

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

/* 会议历史列表 */
.meetings-history-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: 24px;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.refresh-tip {
    font-size: 12px;
    color: var(--text-secondary);
}

.meetings-table-container {
    overflow-x: auto;
}

.meetings-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.meetings-table th, .meetings-table td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.meetings-table th {
    background: #F7F8FA;
    color: var(--text-secondary);
    font-weight: 500;
}

.meetings-table tr:hover td {
    background: #FAFAFC;
}

.table-actions {
    display: flex;
    gap: 6px;
    align-items: center;
}

.text-center {
    text-align: center;
    color: var(--text-secondary);
    padding: 32px 0 !important;
}

/* Modal 弹窗 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-card {
    background: #FFFFFF;
    border-radius: var(--radius-lg);
    width: 560px;
    max-width: 92vw;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    animation: modalIn 0.2s ease-out;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.modal-header {
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 17px;
    font-weight: 600;
}

.modal-body {
    padding: 24px;
}

/* 扫码区域 */
.qr-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 20px 0;
}

.qr-box {
    width: 220px;
    height: 220px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px;
    background: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

.qr-box canvas, .qr-box svg {
    width: 100% !important;
    height: 100% !important;
}

.qr-status {
    margin-top: 14px;
    font-size: 13px;
    color: var(--text-regular);
    display: flex;
    align-items: center;
    gap: 6px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary);
}

.pulsing {
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.9); opacity: 0.6; }
    50% { transform: scale(1.3); opacity: 1; }
    100% { transform: scale(0.9); opacity: 0.6; }
}

.browser-open-box {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.hint-text {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

/* 预约成功高亮 */
.meeting-highlight {
    background: #F0F6FF;
    border: 1.5px dashed #A6C8FF;
    border-radius: var(--radius-md);
    padding: 16px;
    text-align: center;
    margin-bottom: 20px;
}

.meeting-code-label {
    font-size: 12px;
    color: #4B6E9F;
    margin-bottom: 4px;
}

.meeting-code-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 2px;
    font-family: Consolas, monospace;
}

.meeting-details-list {
    margin-bottom: 16px;
    font-size: 13px;
}

.detail-row {
    display: flex;
    padding: 6px 0;
}

.row-label {
    width: 80px;
    color: var(--text-secondary);
}

.row-value {
    flex: 1;
    color: var(--text-primary);
}

.font-bold {
    font-weight: 600;
}

.link {
    color: var(--primary);
    word-break: break-all;
}

.copy-box {
    position: relative;
    margin-top: 14px;
}

.copy-box-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.copy-box textarea, .invite-textarea {
    font-size: 12.5px;
    font-family: Consolas, Monaco, "PingFang SC", "Microsoft YaHei", monospace;
    background: #F8F9FA;
    width: 100%;
    min-height: 220px !important;
    height: 220px !important;
    resize: vertical;
    line-height: 1.6;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    box-sizing: border-box;
}

.modal-actions {
    margin-top: 20px;
    display: flex;
    gap: 12px;
}

.modal-actions .btn {
    flex: 1;
}

@media (max-width: 900px) {
    .app-container {
        grid-template-columns: 1fr;
    }
}