/* ============================================
   净利润计算器 — 页面样式
   ============================================ */

/* ── 平台选择器 ── */
.platform-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
    padding: 16px;
    background: var(--card-bg, #fff);
    border-radius: 12px;
    border: 1px solid var(--border-color, #e5e7eb);
}

.platform-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 2px solid var(--border-color, #e5e7eb);
    border-radius: 8px;
    background: transparent;
    color: var(--text-secondary, #6b7280);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.platform-btn:hover {
    border-color: var(--p-color, #6366f1);
    color: var(--p-color, #6366f1);
    background: color-mix(in srgb, var(--p-color, #6366f1) 6%, transparent);
}

.platform-btn.active {
    border-color: var(--p-color, #6366f1);
    background: var(--p-color, #6366f1);
    color: #fff;
}

.platform-btn i {
    font-size: 16px;
}

/* ── 功能Tab ── */
.profit-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 24px;
    background: var(--card-bg, #fff);
    border-radius: 10px;
    padding: 4px;
    border: 1px solid var(--border-color, #e5e7eb);
}

.profit-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary, #6b7280);
    cursor: pointer;
    transition: all 0.2s;
}

.profit-tab:hover {
    color: var(--text-primary, #1f2937);
    background: linear-gradient(135deg, #f0f0ff 0%, #e8f4ff 100%);
}

.profit-tab.active {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a78bfa 100%);
    color: #fff;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.35);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── 计算布局（左表单 + 右结果） ── */
.calc-layout {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 24px;
    align-items: start;
}

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

/* ── 表单区域 ── */
.calc-form-area {
    background: var(--card-bg, #fff);
    border-radius: 12px;
    border: 1px solid var(--border-color, #e5e7eb);
    padding: 20px;
}

.field-group {
    margin-bottom: 16px;
}

/* ── 折叠手风琴 ── */
.accordion-group .accordion-toggle {
    cursor: pointer;
    user-select: none;
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 0;
    transition: margin-bottom 0.2s;
}

.accordion-group.open .accordion-toggle {
    margin-bottom: 10px;
}

.accordion-left {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    min-width: 0;
}

.accordion-hint {
    font-size: 11px;
    font-weight: 400;
    color: var(--text-muted, #9ca3af);
    background: var(--bg-secondary, #f3f4f6);
    padding: 1px 8px;
    border-radius: 4px;
    margin-left: auto;
    flex-shrink: 0;
}

.accordion-arrow {
    font-size: 18px;
    color: var(--text-muted, #9ca3af);
    transition: transform 0.25s ease;
    flex-shrink: 0;
}

.accordion-group.open .accordion-arrow {
    transform: rotate(180deg);
}

.accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.25s ease;
    opacity: 0;
}

.accordion-group.open .accordion-body {
    max-height: 1200px;
    opacity: 1;
}

.field-group-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary, #1f2937);
    margin: 0 0 10px 0;
    display: flex;
    align-items: center;
    gap: 6px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border-color, #e5e7eb);
}

.field-group-title i {
    font-size: 15px;
    color: var(--primary-color, #6366f1);
}

.platform-tag {
    font-size: 11px;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: 4px;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a78bfa 100%);
    color: #fff;
    margin-left: auto;
}

.input-group {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    margin-bottom: 12px;
}

.input-group label {
    flex: none;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary, #6b7280);
    text-align: left;
    white-space: normal;
}

.input-group label .required {
    color: #ef4444;
    margin-left: 2px;
}

.input-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 8px;
    overflow: hidden;
    transition: border-color 0.2s;
}

.input-wrapper:focus-within {
    border-color: var(--primary-color, #6366f1);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.calc-input {
    flex: 1;
    border: none;
    outline: none;
    padding: 8px 10px;
    font-size: 13px;
    background: transparent;
    color: var(--text-primary, #1f2937);
    min-width: 0;
}

.calc-input::placeholder {
    color: var(--text-muted, #9ca3af);
    font-size: 12px;
}

.calc-select {
    cursor: pointer;
}

.input-unit {
    padding: 0 10px;
    font-size: 12px;
    color: var(--text-muted, #9ca3af);
    white-space: nowrap;
    background: var(--bg-secondary, #f9fafb);
    height: 100%;
    display: flex;
    align-items: center;
    border-left: 1px solid var(--border-color, #e5e7eb);
    min-height: 34px;
}

/* ── 其他支出动态行 ── */
.extra-cost-row {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 8px;
}

.extra-cost-row input[type="text"] {
    flex: 0 0 90px;
    padding: 7px 8px;
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 6px;
    font-size: 13px;
    background: var(--card-bg, #fff);
    color: var(--text-primary, #1f2937);
}

.extra-cost-row input[type="number"] {
    flex: 1;
    padding: 7px 8px;
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 6px;
    font-size: 13px;
    min-width: 0;
    background: var(--card-bg, #fff);
    color: var(--text-primary, #1f2937);
}

.extra-cost-row select {
    padding: 7px 6px;
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 6px;
    font-size: 12px;
    background: var(--bg-secondary, #f9fafb);
    color: var(--text-secondary, #6b7280);
    cursor: pointer;
}

.extra-remove-btn {
    width: 28px;
    height: 28px;
    border: none;
    background: #fee2e2;
    color: #ef4444;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
    transition: background 0.2s;
}

.extra-remove-btn:hover {
    background: #fecaca;
}

.add-extra-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    border: 1px dashed var(--border-color, #d1d5db);
    border-radius: 6px;
    background: transparent;
    color: var(--primary-color, #6366f1);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    width: 100%;
    justify-content: center;
}

.add-extra-btn:hover {
    border-color: var(--primary-color, #6366f1);
    background: rgba(99, 102, 241, 0.04);
}

/* ── 提交按钮 ── */
.calc-submit-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 100%;
    padding: 12px;
    margin-top: 16px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a78bfa 100%);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}

.calc-submit-btn:hover {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #9061f9 100%);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.45);
}

.calc-submit-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* ── 结果区域 ── */
.calc-result-area {
    min-width: 0;
}

/* KPI 卡片 */
.kpi-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.kpi-card {
    background: var(--card-bg, #fff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 10px;
    padding: 14px;
    text-align: center;
}

.kpi-label {
    font-size: 12px;
    color: var(--text-secondary, #6b7280);
    margin-bottom: 4px;
}

.kpi-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary, #1f2937);
    line-height: 1.2;
}

.kpi-unit {
    font-size: 12px;
    color: var(--text-muted, #9ca3af);
    margin-top: 2px;
}

.kpi-profit .kpi-value { color: #10b981; }
.kpi-profit.loss .kpi-value { color: #ef4444; }
.kpi-rate .kpi-value { color: #6366f1; }
.kpi-rate.loss .kpi-value { color: #ef4444; }

.kpi-price-highlight {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: #fff;
    border: none;
}
.kpi-price-highlight .kpi-label,
.kpi-price-highlight .kpi-unit { color: rgba(255,255,255,0.8); }
.kpi-price-highlight .kpi-value { color: #fff; font-size: 28px; }

.daily-orders-input {
    width: 48px;
    padding: 2px 4px;
    border: 1px solid var(--border-color, #d1d5db);
    border-radius: 4px;
    font-size: 12px;
    text-align: center;
    margin: 0 2px;
    color: var(--text-primary, #1f2937);
    background: var(--bg-secondary, #f9fafb);
}

/* 警告提示 */
.warning-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 8px;
}

.warning-item.danger {
    background: #fef2f2;
    color: #dc2626;
    border: 1px solid #fecaca;
}

.warning-item.warning {
    background: #fffbeb;
    color: #d97706;
    border: 1px solid #fde68a;
}

/* 图表卡片 */
.chart-card,
.detail-card {
    background: var(--card-bg, #fff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
}

.chart-card h4,
.detail-card h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary, #1f2937);
    margin: 0 0 12px 0;
    display: flex;
    align-items: center;
    gap: 6px;
}

.detail-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.detail-card-header h4 { margin: 0; }

/* 明细表格 */
.detail-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.detail-table th,
.detail-table td {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border-color, #f3f4f6);
    text-align: left;
}

.detail-table th {
    font-weight: 600;
    color: var(--text-secondary, #6b7280);
    font-size: 12px;
    background: var(--bg-secondary, #f9fafb);
}

.detail-table td {
    color: var(--text-primary, #1f2937);
}

.detail-table tr.row-profit td {
    font-weight: 700;
    border-top: 2px solid var(--primary-color, #6366f1);
}

.table-wrapper {
    overflow-x: auto;
}

/* ── 批量上传区域 ── */
.batch-area {
    background: var(--card-bg, #fff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 12px;
    padding: 24px;
}

.batch-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 12px;
}

.batch-desc {
    font-size: 14px;
    color: var(--text-secondary, #6b7280);
    margin: 0;
}

.template-btn,
.export-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid var(--primary-color, #6366f1);
    border-radius: 8px;
    background: transparent;
    color: var(--primary-color, #6366f1);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.template-btn:hover,
.export-btn:hover {
    background: var(--primary-color, #6366f1);
    color: #fff;
}

.upload-area {
    border: 2px dashed var(--border-color, #d1d5db);
    border-radius: 12px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.upload-area:hover,
.upload-area.drag-over {
    border-color: var(--primary-color, #6366f1);
    background: rgba(99, 102, 241, 0.04);
}

.upload-icon {
    font-size: 40px;
    color: var(--text-muted, #9ca3af);
    margin-bottom: 8px;
}

.upload-text {
    font-size: 14px;
    color: var(--text-secondary, #6b7280);
    margin: 0 0 4px 0;
}

.upload-link {
    color: var(--primary-color, #6366f1);
    font-weight: 500;
}

.upload-hint {
    font-size: 12px;
    color: var(--text-muted, #9ca3af);
    margin: 0;
}

.upload-file-info {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    background: var(--bg-secondary, #f0fdf4);
    border: 1px solid #bbf7d0;
    border-radius: 8px;
    font-size: 13px;
    color: #166534;
    margin-top: 12px;
}

.upload-file-info i {
    font-size: 18px;
    color: #16a34a;
}

.remove-file-btn {
    margin-left: auto;
    border: none;
    background: transparent;
    color: #6b7280;
    cursor: pointer;
    font-size: 16px;
    padding: 2px;
}

.remove-file-btn:hover { color: #ef4444; }

/* 批量结果 */
.batch-summary {
    margin-top: 20px;
}

.batch-table .loss-row { background: #fef2f2; }
.batch-table .loss-row td { color: #dc2626; }

/* ── 反算Tab ── */
.reverse-intro {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 12px;
    background: #eff6ff;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 13px;
    color: #1d4ed8;
}

.reverse-intro i { font-size: 18px; flex-shrink: 0; margin-top: 1px; }
.reverse-intro p { margin: 0; }

.reverse-table .target-row {
    background: linear-gradient(90deg, rgba(99,102,241,0.08), transparent);
    font-weight: 600;
}

/* ── 响应式 ── */
@media (max-width: 768px) {
    .platform-selector {
        gap: 6px;
        padding: 12px;
    }
    .platform-btn {
        padding: 6px 10px;
        font-size: 12px;
    }
    .profit-tabs {
        font-size: 13px;
    }
    .profit-tab {
        padding: 8px 8px;
        font-size: 13px;
    }
    .kpi-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    .kpi-value {
        font-size: 20px;
    }
    .batch-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ── 平台对比功能 ── */
.calc-buttons-group {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}

.add-compare-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px;
    border: 2px solid var(--primary-color, #6366f1);
    border-radius: 10px;
    background: transparent;
    color: var(--primary-color, #6366f1);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.add-compare-btn:hover {
    background: var(--primary-color, #6366f1);
    color: #fff;
    transform: translateY(-1px);
}

.comparison-container {
    background: var(--card-bg, #fff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 12px;
    padding: 20px;
    margin-top: 20px;
}

.comparison-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-color, #e5e7eb);
}

.comparison-header h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary, #1f2937);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.comparison-header h4 i {
    color: var(--primary-color, #6366f1);
    font-size: 20px;
}

.clear-comparison-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border: 1px solid #ef4444;
    border-radius: 8px;
    background: transparent;
    color: #ef4444;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.clear-comparison-btn:hover {
    background: #ef4444;
    color: #fff;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    margin-bottom: 20px;
}

.comparison-table th,
.comparison-table td {
    padding: 12px 16px;
    text-align: center;
    border: 1px solid var(--border-color, #e5e7eb);
}

.comparison-table th {
    background: var(--bg-secondary, #f9fafb);
    font-weight: 600;
    color: var(--text-primary, #1f2937);
    font-size: 13px;
}

.comparison-table th.metric-col {
    text-align: left;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: #fff;
}

.comparison-table td {
    color: var(--text-primary, #1f2937);
    font-weight: 500;
}

.comparison-table td.metric-col {
    text-align: left;
    background: var(--bg-secondary, #f9fafb);
    font-weight: 600;
}

.comparison-table tbody tr:hover {
    background: rgba(99, 102, 241, 0.04);
}

.comparison-chart-card {
    background: var(--bg-secondary, #f9fafb);
    border-radius: 10px;
    padding: 16px;
    margin-top: 16px;
}

.comparison-chart-card h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary, #1f2937);
    margin: 0 0 12px 0;
    display: flex;
    align-items: center;
    gap: 6px;
}

.comparison-chart-card h4 i {
    color: var(--primary-color, #6366f1);
}

/* ── 品类选择行 ── */
.category-row {
    margin-bottom: 14px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border-color, #e5e7eb);
}

.category-row label i {
    color: var(--primary-color, #6366f1);
    margin-right: 2px;
}

/* ── 最优/最差SKU卡片 ── */
.kpi-card-best {
    border-color: #10b981;
    background: linear-gradient(135deg, #f0fdf4, #fff);
}

.kpi-card-best .kpi-label {
    color: #059669;
}

.kpi-card-best .kpi-label i {
    color: #f59e0b;
}

.kpi-card-worst {
    border-color: #f87171;
    background: linear-gradient(135deg, #fff5f5, #fff);
}

.kpi-card-worst .kpi-label {
    color: #dc2626;
}

/* SKU名称：字号小一些，允许换行防溢出 */
.kpi-sku-name {
    font-size: 13px !important;
    font-weight: 600;
    word-break: break-all;
    line-height: 1.4;
    min-height: 1.4em;
    white-space: normal !important;
}

/* ── 空态提示面板 ── */
.calc-hint-panel {
    background: var(--card-bg, #fff);
    border-radius: 12px;
    border: 1px solid var(--border-color, #e5e7eb);
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    align-self: start;
}

.hint-hero {
    text-align: center;
    padding: 20px 0;
}

.hint-hero i {
    font-size: 48px;
    color: #6366f1;
    opacity: 0.6;
    display: block;
    margin-bottom: 12px;
}

.hint-hero h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary, #1f2937);
    margin: 0 0 8px;
}

.hint-hero p {
    font-size: 13px;
    color: var(--text-muted, #9ca3af);
    margin: 0;
    line-height: 1.6;
}

.hint-tips {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.hint-tip {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary, #6b7280);
}

.hint-tip i {
    color: #10b981;
    font-size: 15px;
    flex-shrink: 0;
    margin-top: 1px;
}

.hint-rates {
    background: var(--bg-secondary, #f9fafb);
    border-radius: 8px;
    padding: 14px 16px;
}

.hint-rates-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary, #6b7280);
    margin: 0 0 10px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.hint-rate-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.hint-rate-list span {
    font-size: 12px;
    padding: 3px 10px;
    background: #fff;
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 20px;
    color: var(--text-secondary, #6b7280);
}

@media (max-width: 768px) {
    .calc-buttons-group {
        flex-direction: column;
    }
    
    .comparison-table {
        font-size: 12px;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 8px 10px;
    }
}