:root {
    --mortgage-radius-lg: 24px;
    --mortgage-radius-md: 18px;
}

.mortgage-container {
    padding-bottom: var(--spacing-xl);
}

.important-banner {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    background: linear-gradient(135deg, rgba(0, 122, 255, 0.12), rgba(88, 86, 214, 0.1));
    border-radius: var(--mortgage-radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid rgba(0, 122, 255, 0.18);
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
    margin: var(--spacing-xl) 0 0;
}

.banner-icon {
    font-size: 2.25rem;
    line-height: 1;
}

.banner-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    color: var(--text-primary);
}

.banner-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--primary-color);
}

.banner-content p {
    font-size: 1rem;
    font-weight: 500;
}

.banner-content .tips-list {
    margin: var(--spacing-sm) 0 0;
    padding-left: 1.5rem;
    display: grid;
    gap: var(--spacing-sm);
}

.banner-content .tips-list li {
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.6;
}

.banner-content .tips-list sup {
    font-size: 0.75em;
}

.mortgage-card {
    background: var(--surface-color);
    border-radius: var(--mortgage-radius-lg);
    box-shadow: 0 28px 60px rgba(15, 23, 42, 0.08);
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.tab-header {
    display: flex;
    background: var(--surface-color);
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: var(--mortgage-radius-md);
    padding: 4px;
    gap: 4px;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.tab-btn {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: calc(var(--mortgage-radius-md) - 4px);
    font-weight: 600;
    font-size: 1.05rem;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.25s ease;
    position: relative;
}

.tab-btn:hover,
.tab-btn:focus-visible {
    color: var(--primary-color);
}

.tab-btn.active {
    background: rgba(0, 122, 255, 0.08);
    color: var(--primary-color);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.18);
}

.tab-btn::after {
    content: '';
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 6px;
    height: 3px;
    background: transparent;
    border-radius: 999px;
    transition: background 0.25s ease;
}

.tab-btn.active::after {
    background: var(--primary-color);
}

.calculator-panel {
    display: none;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.calculator-panel.active {
    display: block;
}

.panel-grid {
    display: grid;
    gap: var(--spacing-lg);
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

#prepayment-advanced .panel-grid {
    grid-template-columns: minmax(0, 1fr);
    max-width: 1080px;
    margin: 0 auto;
}

.form-section,
.result-section {
    background: var(--surface-color);
    border-radius: var(--mortgage-radius-md);
    padding: var(--spacing-lg);
    box-shadow: 0 20px 45px rgba(15, 23, 42, 0.06);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-section h2,
.result-section h2 {
    margin: 0;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.form-row {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-row.is-hidden {
    display: none !important;
}

.form-row .label {
    font-weight: 600;
    color: var(--text-secondary);
}

.form-row input[type="number"],
.form-row input[type="month"],

.form-row select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    border: 1px solid rgba(148, 163, 184, 0.4);
    background: var(--surface-color);
    color: var(--text-primary);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    font-size: 1rem;
}

.prepayment-advanced-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.advanced-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.advanced-summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
}

.advanced-summary-card {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.16), rgba(74, 222, 128, 0.1));
    border: 1px solid rgba(34, 197, 94, 0.25);
    border-radius: calc(var(--mortgage-radius-md) - 4px);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    box-shadow: 0 14px 32px rgba(22, 101, 52, 0.08);
}

.advanced-summary-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: #166534;
}

.advanced-summary-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #0f5132;
}

.advanced-summary-extra {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.advanced-summary-row {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(15, 23, 42, 0.02);
    border-radius: calc(var(--mortgage-radius-md) - 6px);
}

.advanced-summary-label {
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 96px;
}

.advanced-summary-text {
    font-weight: 600;
    color: var(--text-primary);
}

.advanced-summary-content {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: var(--spacing-xs);
}

.advanced-summary-content .summary-note {
    display: inline-flex;
    align-items: baseline;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
}

.advanced-section + .advanced-section {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(15, 23, 42, 0.08);
}

.advanced-section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.advanced-section-header-left {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    flex: 1;
}

/* 计划汇总区域的 header 保持原有样式 */
.advanced-section:not(.advanced-detail-section) .advanced-section-header {
    flex-direction: column;
    align-items: stretch;
}

.advanced-section-title,
.advanced-section-header h2 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.advanced-section-subtitle {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.advanced-field-grid {
    display: grid;
    gap: var(--spacing-md);
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.advanced-plan-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.advanced-plan-wrapper--single .advanced-plan-textarea {
    min-height: 320px;
}

.advanced-plan-editor {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.advanced-plan-label {
    font-weight: 600;
    color: var(--text-secondary);
}

.advanced-form-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(15, 23, 42, 0.08);
}

.advanced-plan-textarea {
    width: 100%;
    min-height: 200px;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border: 1px solid rgba(148, 163, 184, 0.4);
    font-family: var(--font-mono, 'Fira Code', 'JetBrains Mono', Consolas, 'Courier New', monospace);
    font-size: 0.95rem;
    line-height: 1.6;
    resize: vertical;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.advanced-plan-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.advanced-plan-hints {
    margin-top: 0;
    padding: var(--spacing-md);
    border-radius: var(--mortgage-radius-md);
    background: rgba(37, 99, 235, 0.06);
    border: 1px solid rgba(37, 99, 235, 0.12);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.advanced-plan-hints strong {
    color: var(--primary-color);
}

.advanced-plan-hints ul,
.advanced-plan-hints ol {
    margin: 0;
    padding-left: 1.2rem;
    display: grid;
    gap: var(--spacing-xs);
}

.advanced-plan-hints code {
    font-family: var(--font-mono, 'Fira Code', 'JetBrains Mono', Consolas, 'Courier New', monospace);
    background: rgba(15, 23, 42, 0.08);
    padding: 0 0.3em;
    border-radius: 4px;
}

.advanced-plan-hints pre {
    margin: 0;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    background: rgba(15, 23, 42, 0.08);
    font-family: var(--font-mono, 'Fira Code', 'JetBrains Mono', Consolas, 'Courier New', monospace);
    font-size: 0.85rem;
    line-height: 1.6;
    overflow-x: auto;
}

.advanced-summary-note {
    font-size: 0.95rem;
    color: var(--text-secondary);
    display: grid;
    gap: var(--spacing-xs);
}

.advanced-summary-note span {
    font-weight: 600;
    color: var(--text-primary);
}

.advanced-summary-note p {
    margin: 0;
}

.form-row input[type="number"]:focus,
.form-row input[type="month"]:focus,
.form-row select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
    outline: none;
}

.form-row select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%236376F1' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 12px 8px;
    padding-right: 2.5rem;
}

.form-row select::-ms-expand {
    display: none;
}

.month-range {
    display: grid;
    gap: var(--spacing-md);
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.month-field {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.month-field label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.hint-emphasis {
    font-weight: 600;
    color: var(--primary-color);
}

.form-hint {
    margin: 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.range-input {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.range-input input[type="range"] {
    accent-color: var(--primary-color);
    cursor: pointer;
}

.range-value {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.radio-group {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.95rem;
    cursor: pointer;
}

.radio-group input[type="radio"] {
    cursor: pointer;
}

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
    margin-top: var(--spacing-md);
}

.action-btn {
    cursor: pointer;
    border: none;
    background: transparent;
}

.form-actions .action-btn {
    min-width: 150px;
    padding: 14px 32px;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 999px;
    border: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.form-actions .action-btn.primary {
    background: linear-gradient(135deg, var(--primary-color), #2563eb);
    color: #ffffff;
    box-shadow: 0 16px 30px rgba(37, 99, 235, 0.25);
}

.form-actions .action-btn.primary:hover,
.form-actions .action-btn.primary:focus-visible {
    transform: translateY(-1px);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.28);
}

.form-actions .action-btn.secondary {
    background: #f8fafc;
    color: var(--primary-color);
    border: 1px solid rgba(37, 99, 235, 0.3);
    box-shadow: 0 10px 22px rgba(15, 23, 42, 0.08);
}

.form-actions .action-btn.secondary:hover,
.form-actions .action-btn.secondary:focus-visible {
    transform: translateY(-1px);
    background: #ffffff;
}

.action-btn.tertiary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 8px 18px;
    background: rgba(37, 99, 235, 0.06);
    color: var(--primary-color);
    border: 1px solid rgba(37, 99, 235, 0.35);
    border-radius: 999px;
    font-weight: 600;
    line-height: 1;
    box-shadow: 0 10px 22px rgba(15, 23, 42, 0.06);
    transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.action-btn.tertiary:hover,
.action-btn.tertiary:focus-visible {
    background: rgba(37, 99, 235, 0.12);
    color: #1d4ed8;
    transform: translateY(-1px);
    box-shadow: 0 14px 30px rgba(37, 99, 235, 0.2);
}

.action-btn.tertiary:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25), 0 14px 30px rgba(37, 99, 235, 0.2);
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--spacing-md);
    align-items: stretch;
}

.advanced-summary-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.prepayment-summary-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.summary-item {
    background: var(--surface-color);
    border-radius: var(--mortgage-radius-md);
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
    border: 1px solid rgba(15, 23, 42, 0.05);
}

.summary-label {
    font-size: 0.95rem;
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.summary-value {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-color);
    word-break: break-all;
}

.summary-item .summary-note {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.summary-item--primary .summary-note {
    color: rgba(255, 255, 255, 0.85);
}

.summary-item--primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #ffffff;
    border: none;
    box-shadow: 0 24px 54px rgba(0, 122, 255, 0.3);
}

.summary-item--primary .summary-label {
    color: rgba(255, 255, 255, 0.75);
}

.summary-item--primary .summary-value {
    color: #ffffff;
    font-size: 2rem;
}

.scenario-grid {
    display: grid;
    gap: var(--spacing-md);
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    align-items: stretch;
}

.scenario-card {
    background: var(--surface-color);
    border-radius: var(--mortgage-radius-md);
    padding: var(--spacing-lg);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
    border: 1px solid rgba(15, 23, 42, 0.05);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.scenario-card[hidden] {
    display: none;
}

.scenario-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
}

.scenario-header h3 {
    margin: 0;
    font-size: 1.15rem;
}

.scenario-metrics {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.scenario-metrics li {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.metric-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.metric-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.metric-note {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.scenario-hint {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}



@media (max-width: 767px) {
    .important-banner {
        flex-direction: column;
        align-items: flex-start;
    }

    .mortgage-card {
        padding: var(--spacing-lg);
    }

    .tab-header {
        flex-wrap: wrap;
        gap: 6px;
    }

    .tab-btn {
        flex: 1 1 calc(50% - 6px);
    }

    .month-range {
        grid-template-columns: 1fr;
    }

    .form-actions .action-btn {
        width: 100%;
    }

    .scenario-grid {
        grid-template-columns: 1fr;
    }
}

.detail-table-wrapper {
    background: var(--surface-color);
    border-radius: var(--mortgage-radius-md);
    padding: var(--spacing-md);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.05);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-height: 480px;
}

.detail-table-wrapper.combined-detail {
    max-height: none;
    gap: var(--spacing-sm);
}

.detail-table-wrapper.combined-detail .table-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

.detail-modal-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
}

.detail-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.35rem;
    height: 1.35rem;
    font-size: 1rem;
    line-height: 1;
}

.detail-hint {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.detail-count {
    font-weight: 600;
    color: var(--primary-color);
}

.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.table-header h3 {
    margin: 0;
    font-size: 1.1rem;
}

.table-actions .export-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
}

.export-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.35rem;
    height: 1.35rem;
    font-size: 1rem;
    line-height: 1;
}

.export-label {
    font-weight: 600;
}

.detail-table-wrapper table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.advanced-detail-wrapper {
    max-height: none;
}

.advanced-detail-wrapper tbody {
    max-height: 420px;
}

/* 还款明细表格不使用滚动，直接全量显示 */
.advanced-detail-section .advanced-detail-table {
    font-size: 0.92rem;
    width: 100%;
}

.advanced-detail-section .advanced-detail-table tbody {
    display: table-row-group;
    max-height: none;
    overflow-y: visible;
}

/* 还款明细区域的导出按钮样式 */
.advanced-detail-section .export-btn {
    flex-shrink: 0;
    align-self: flex-end; /* 与底部对齐 */
}

.advanced-detail-table thead th {
    background: #15803d;
    color: #f0fdf4;
    text-align: left;
    padding: var(--spacing-sm) var(--spacing-md);
    font-weight: 600;
    border-bottom: 1px solid rgba(15, 118, 110, 0.4);
}

.advanced-detail-table thead tr:first-child th {
    text-align: left;
}

.advanced-detail-table tbody td {
    color: var(--text-primary);
    border-bottom: 1px solid rgba(134, 239, 172, 0.4);
}

.advanced-detail-table tbody tr:nth-child(odd) {
    background: rgba(220, 252, 231, 0.65);
}

.advanced-detail-table tbody tr:nth-child(even) {
    background: rgba(187, 247, 208, 0.45);
}

.advanced-year-header td {
    color: #14532d;
    font-weight: 700;
}

.advanced-event-row td {
    background: rgba(254, 243, 199, 0.9);
    color: #92400e;
    font-weight: 600;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    align-items: baseline;
}

.advanced-event-row .event-month {
    font-weight: 700;
}

.advanced-event-row .event-detail {
    display: inline-flex;
    align-items: baseline;
    gap: var(--spacing-xs);
}

.advanced-event-row .event-balance {
    margin-left: auto;
    font-weight: 500;
}

.detail-table-wrapper thead {
    position: sticky;
    top: 0;
    background: #d1ecf1; /* 淡蓝色 */
    box-shadow: 0 1px 0 rgba(148, 163, 184, 0.4);
}

.detail-table-wrapper thead tr:first-child th {
    text-align: center;
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.detail-table-wrapper .advanced-detail-table thead tr:first-child th {
    text-align: left;
}

.detail-table-wrapper thead tr:first-child th.period-col {
    text-align: left;
}

.detail-table-wrapper thead tr:first-child th.group-header {
    font-weight: 600;
}

.detail-table-wrapper th,
.detail-table-wrapper td {
    text-align: right;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
    white-space: nowrap;
}

.detail-table-wrapper .period-col {
    width: 72px;
    min-width: 72px;
}

.detail-table-wrapper td.period-col {
    text-align: left;
}

.detail-table-wrapper th:first-child,
.detail-table-wrapper td:first-child {
    text-align: left;
}

.detail-table-wrapper tbody {
    overflow-y: auto;
    display: block;
    max-height: 380px;
}

.detail-table-wrapper table thead,
.detail-table-wrapper table tbody tr {
    display: table;
    width: 100%;
    table-layout: fixed;
}

.split-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
}

.split-grid fieldset {
    border: 1px solid rgba(148, 163, 184, 0.4);
    border-radius: var(--mortgage-radius-md);
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.split-grid legend {
    padding: 0 var(--spacing-xs);
    font-weight: 600;
    color: var(--text-secondary);
}

@media (max-width: 1024px) {
    .panel-grid {
        grid-template-columns: 1fr;
    }

    .scenario-grid {
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    }

    .detail-table-wrapper {
        max-height: none;
    }

    .detail-table-wrapper tbody {
        max-height: 320px;
    }
}

.modal {
    position: fixed;
    inset: 0;
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.modal[hidden] {
    display: none;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(2px);
}

.modal-dialog {
    position: relative;
    z-index: 1;
    background: var(--surface-color);
    border-radius: var(--mortgage-radius-lg);
    box-shadow: 0 36px 80px rgba(15, 23, 42, 0.18);
    width: min(1100px, 100%);
    max-height: min(90vh, 900px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid rgba(148, 163, 184, 0.24);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(14, 165, 233, 0.1));
}

.modal-header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.modal-header .export-btn {
    padding: 6px var(--spacing-sm);
}

.modal-header h3 {
    margin: 0;
    font-size: 1.3rem;
}

.modal-close {
    inline-size: 36px;
    block-size: 36px;
    border: none;
    background: transparent;
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--text-secondary);
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    transition: background 0.2s ease, color 0.2s ease;
}

.modal-close:hover,
.modal-close:focus-visible {
    background: rgba(37, 99, 235, 0.12);
    color: var(--primary-color);
    outline: 2px solid rgba(59, 130, 246, 0.3);
    outline-offset: 2px;
}

.modal-body {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    overflow: hidden;
}

.modal-description {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.modal-table-wrapper {
    border: 1px solid rgba(148, 163, 184, 0.25);
    border-radius: var(--mortgage-radius-md);
    overflow: auto;
    max-height: 100%;
}

#combined-detail-table thead th {
    text-align: center;
}

#combined-detail-table tbody td.period-col {
    text-align: center;
}

#combined-detail-table {
    --combined-detail-header-height: calc(var(--spacing-xs) * 2 + 1.5rem);
}

#combined-detail-table thead tr:first-child th {
    top: 0;
    z-index: 2;
}

#combined-detail-table thead tr:nth-child(2) th {
    top: var(--combined-detail-header-height);
    z-index: 1;
}

.modal-table-wrapper table {
    width: 100%;
    border-collapse: collapse;
    min-width: 720px;
}

.modal-table-wrapper thead th {
    position: sticky;
    top: 0;
    background: var(--surface-color);
    border-bottom: 1px solid rgba(148, 163, 184, 0.25);
    padding: var(--spacing-xs) var(--spacing-sm);
    text-align: right;
    white-space: nowrap;
}

.modal-table-wrapper thead th:first-child {
    text-align: left;
}

.modal-table-wrapper tbody td {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-bottom: 1px solid rgba(148, 163, 184, 0.18);
    text-align: right;
    white-space: nowrap;
}

.modal-table-wrapper tbody td:first-child {
    text-align: left;
}

.modal-table-wrapper tbody tr:last-child td {
    border-bottom: none;
}

.alert-dialog {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.alert-dialog[hidden] {
    display: none;
}

.alert-dialog.is-visible {
    opacity: 1;
    pointer-events: auto;
}

.alert-dialog__overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.35);
    backdrop-filter: blur(2px);
}

.alert-dialog__panel {
    position: relative;
    z-index: 1;
    inline-size: min(360px, 100%);
    padding: calc(var(--spacing-lg) - 4px) var(--spacing-lg);
    border-radius: var(--mortgage-radius-md);
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.98), rgba(241, 245, 249, 0.95));
    box-shadow: 0 28px 60px rgba(15, 23, 42, 0.16);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    transform: translateY(16px) scale(0.96);
    opacity: 0;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.alert-dialog.is-visible .alert-dialog__panel {
    transform: translateY(0) scale(1);
    opacity: 1;
}

.alert-dialog__icon {
    inline-size: 54px;
    block-size: 54px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.16), rgba(14, 165, 233, 0.16));
    color: var(--primary-color);
}

.alert-dialog__icon svg {
    inline-size: 28px;
    block-size: 28px;
}

.alert-dialog__title {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.alert-dialog__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    text-align: center;
}

.alert-dialog__message {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
    text-align: center;
}

.alert-dialog__actions {
    display: flex;
    justify-content: center;
    width: 100%;
}

.alert-dialog__close {
    min-inline-size: 120px;
    padding: 10px var(--spacing-md);
    border-radius: 999px;
    border: none;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.85), rgba(59, 130, 246, 0.95));
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 16px 32px rgba(37, 99, 235, 0.25);
}

.alert-dialog__close:hover,
.alert-dialog__close:focus-visible {
    transform: translateY(-1px);
    box-shadow: 0 20px 38px rgba(37, 99, 235, 0.32);
}

.alert-dialog__close:focus-visible {
    outline: 2px solid rgba(59, 130, 246, 0.6);
    outline-offset: 2px;
}

body.modal-open {
    overflow: hidden;
}

@media (max-width: 640px) {
    .modal {
        padding: var(--spacing-md);
    }

    .modal-dialog {
        border-radius: var(--mortgage-radius-md);
    }

    .alert-dialog {
        padding: var(--spacing-md);
    }

    .alert-dialog__panel {
        border-radius: var(--mortgage-radius-md);
    }
}

/* 高级还款表格 - 分年展示样式 */
.advanced-detail-table-container {
    background: #e8f5e8;
    border-radius: 12px;
    padding: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.advanced-year-section {
    background: #d4edda;
    border-radius: 8px;
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
    border: 1px solid #c3e6cb;
}

.advanced-year-title {
    background: #c3e6cb;
    padding: var(--spacing-md);
    font-size: 1.1rem;
    font-weight: 700;
    color: #155724;
    border-bottom: 2px solid #b1dfbb;
}

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

.advanced-detail-table thead {
    background: #d4edda;
}

.advanced-detail-table th {
    padding: 4px 8px; /* 进一步减小内边距 */
    text-align: center;
    font-weight: 600;
    color: #155724;
    border: 1px solid #c3e6cb;
    font-size: 0.9rem;
}

.advanced-detail-table td {
    padding: 4px 8px; /* 进一步减小内边距 */
    text-align: center;
    border: 1px solid #c3e6cb;
    font-size: 0.9rem;
    color: #212529;
}

.advanced-detail-table tbody tr:nth-child(even) {
    background: #f8fdf8;
}

.advanced-detail-table tbody tr:hover {
    background: #e9f7ef;
}

/* 提前还款特殊行样式 - 单行布局 */
.advanced-prepayment-row {
    background: #d4edda !important; /* 绿豆沙色 */
    border-left: 3px solid #dc3545 !important; /* 红色左边框 */
}

.advanced-prepayment-row td {
    border-color: #c3e6cb !important;
    border-bottom: 1px solid #c3e6cb !important;
    padding: 4px 8px !important; /* 与普通行一致 */
    text-align: center !important;
    vertical-align: middle !important;
    color: #dc3545 !important; /* 红色文字 */
    font-weight: 600 !important;
}

/* 合并单元格居中 */
.advanced-prepayment-row td[colspan] {
    text-align: center !important;
}

/* 年份标题行 */
.advanced-year-header {
    background: #d1ecf1 !important; /* 淡蓝色背景 */
    border-left: 3px solid #0d6efd !important; /* 蓝色加粗左边框 */
}

.advanced-year-header td {
    padding: 6px 12px !important; /* 与普通行接近 */
    font-size: 1.05rem !important;
    font-weight: 700 !important;
    color: #212529 !important; /* 深色文字 */
    text-align: left !important;
    border-color: #b6d4fe !important;
}

/* 每年的表头 */
.advanced-table-header {
    background: #d4edda !important;
}

.advanced-table-header th {
    padding: 4px 8px !important; /* 与普通行一致 */
    text-align: center !important;
    font-weight: 600 !important;
    color: #155724 !important;
    border: 1px solid #c3e6cb !important;
    font-size: 0.9rem !important;
}


/* 响应式调整 */
@media (max-width: 768px) {
    .advanced-detail-table {
        font-size: 0.85rem;
    }
    
    .advanced-detail-table th,
    .advanced-detail-table td {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

@media (max-width: 640px) {
    .mortgage-card {
        padding: var(--spacing-md);
    }

    .form-section,
    .result-section {
        padding: var(--spacing-md);
    }

    .summary-grid {
        grid-template-columns: 1fr;
    }

    .detail-table-wrapper {
        padding: var(--spacing-sm);
    }
    
    .advanced-detail-table-container {
        padding: var(--spacing-md);
    }
}

/* 深色模式适配 */
@media (prefers-color-scheme: dark) {
    /* 高级提前还款表格 - 深色模式 */
    .advanced-detail-table {
        background: #1a1a1a !important;
    }

    .advanced-detail-table th {
        background: #2d3748 !important;
        color: #e2e8f0 !important;
        border-color: #4a5568 !important;
    }

    .advanced-detail-table td {
        background: #1a1a1a !important;
        color: #e2e8f0 !important;
        border-color: #4a5568 !important;
    }

    .advanced-detail-table tbody tr:nth-child(even) {
        background: #252525 !important;
    }

    .advanced-detail-table tbody tr:hover {
        background: #2d2d2d !important;
    }

    /* 年份标题行 - 深色模式 */
    .advanced-year-header {
        background: #1e3a5f !important; /* 深蓝色背景 */
        border-left: 3px solid #3b82f6 !important; /* 亮蓝色左边框 */
    }

    .advanced-year-header td {
        color: #e2e8f0 !important; /* 浅色文字 */
        border-color: #4a5568 !important;
    }

    /* 表头行 - 深色模式 */
    .advanced-table-header {
        background: #2d4a3e !important; /* 深绿色背景 */
    }

    .advanced-table-header th {
        color: #a7f3d0 !important; /* 浅绿色文字 */
        border-color: #4a5568 !important;
    }

    /* 提前还款行 - 深色模式 */
    .advanced-prepayment-row {
        background: #2d3e2d !important; /* 深绿色背景 */
        border-left: 3px solid #ef4444 !important; /* 红色左边框保持不变 */
    }

    .advanced-prepayment-row td {
        background: #2d3e2d !important;
        color: #ef4444 !important; /* 红色文字保持不变 */
        border-color: #4a5568 !important;
    }

    /* 其他表格样式 - 深色模式 */
    .detail-table-wrapper thead {
        background: #2d3748 !important;
    }

    .detail-table-wrapper th,
    .detail-table-wrapper td {
        border-color: #4a5568 !important;
        color: #e2e8f0 !important;
    }

    .detail-table-wrapper tbody tr:nth-child(even) {
        background: #252525 !important;
    }

    .detail-table-wrapper tbody tr:hover {
        background: #2d2d2d !important;
    }

    /* 结果区域 - 深色模式 */
    .result-section {
        background: #1a1a1a !important;
        border-color: #4a5568 !important;
    }

    .advanced-section {
        background: #1a1a1a !important;
    }

    /* 汇总项目 - 深色模式 */
    .summary-item {
        background: #252525 !important;
        border-color: #4a5568 !important;
    }

    .summary-label,
    .summary-value {
        color: #e2e8f0 !important;
    }

    /* 容器背景 - 深色模式 */
    .advanced-detail-table-container {
        background: #1a1a1a !important;
    }

    .advanced-year-section {
        background: #252525 !important;
    }

    /* 计划配置文本框 - 深色模式 */
    .advanced-plan-textarea {
        background: #1a1a1a !important;
        color: #e2e8f0 !important;
        border-color: #4a5568 !important;
    }

    .advanced-plan-textarea:focus {
        border-color: #3b82f6 !important;
        box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25) !important;
    }

    .advanced-plan-textarea::placeholder {
        color: #6b7280 !important;
    }

    /* 计划配置标签 - 深色模式 */
    .advanced-plan-label {
        color: #e2e8f0 !important;
    }

    /* 表单区域 - 深色模式 */
    .form-section {
        background: #1a1a1a !important;
        border-color: #4a5568 !important;
    }

    .form-section h2 {
        color: #e2e8f0 !important;
    }

    /* 输入框 - 深色模式 */
    input[type="number"],
    input[type="text"],
    input[type="range"] {
        background: #1a1a1a !important;
        color: #e2e8f0 !important;
        border-color: #4a5568 !important;
    }

    input[type="number"]:focus,
    input[type="text"]:focus {
        border-color: #3b82f6 !important;
        box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25) !important;
    }

    /* 标签文字 - 深色模式 */
    label,
    .label {
        color: #e2e8f0 !important;
    }

    /* 范围显示值 - 深色模式 */
    .range-value {
        color: #e2e8f0 !important;
    }

    /* 按钮 - 深色模式 */
    .action-btn.secondary {
        background: #2d3748 !important;
        color: #e2e8f0 !important;
        border-color: #4a5568 !important;
    }

    .action-btn.secondary:hover {
        background: #374151 !important;
    }

    /* 提示信息 - 深色模式 */
    .advanced-plan-hints {
        background: rgba(59, 130, 246, 0.15) !important;
        border-color: #3b82f6 !important;
        color: #e2e8f0 !important;
    }

    /* 页面整体标题 - 深色模式 */
    .advanced-section-title,
    .advanced-section-subtitle {
        color: #e2e8f0 !important;
    }
}