/* ══════════════════════════════════════
   Travel Expense Tracker - Styles
   移动优先 · 治愈系 · 轻设计
   ══════════════════════════════════════ */

:root {
    --primary: #007AFF;
    --primary-light: #E8F0FE;
    --danger: #FF3B30;
    --success: #34C759;
    --warning: #FF9500;
    --bg: #F2F2F7;
    --card: #FFFFFF;
    --text: #1C1C1E;
    --text-secondary: #8E8E93;
    --border: #E5E5EA;
    --radius: 12px;
    --radius-lg: 16px;
    --shadow: 0 2px 12px rgba(0,0,0,0.06);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Helvetica Neue', 'Microsoft YaHei', sans-serif;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

/* ── 导航 ── */
.nav-bar {
    position: fixed; top:0; left:0; right:0;
    z-index: 100;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    display: flex; align-items: center;
    height: 52px; padding: 0 16px;
    max-width: 640px; margin: 0 auto;
}

.nav-back {
    background: none; border: none;
    font-size: 16px; color: var(--primary);
    cursor: pointer; padding: 8px 4px;
    min-width: 60px; text-align: left;
}

.nav-title {
    flex: 1; text-align: center;
    font-size: 17px; font-weight: 600;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.nav-right {
    min-width: 60px; text-align: right;
}

.share-badge {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
}

/* ── 主要内容 ── */
.main-content {
    max-width: 640px;
    margin: 0 auto;
    padding: 16px;
    padding-bottom: 100px;
}

.main-content.has-nav {
    padding-top: 68px;
}

/* ── 首页 ── */
.home-page {
    padding-top: 40px;
}

.logo-area {
    text-align: center;
    margin-bottom: 32px;
}

.logo-icon {
    font-size: 64px;
    margin-bottom: 8px;
}

.app-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 4px;
}

.app-desc {
    font-size: 15px;
    color: var(--text-secondary);
}

/* ── 卡片 ── */
.card-list {
    display: flex; flex-direction: column;
    gap: 12px; margin-bottom: 20px;
}

.card {
    display: flex; align-items: center;
    background: var(--card);
    border-radius: var(--radius-lg);
    padding: 18px;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: transform 0.15s;
    gap: 14px;
}

.card:active { transform: scale(0.98); }

.card-primary {
    border-left: 4px solid var(--primary);
}

.card-icon {
    font-size: 28px;
    width: 44px; height: 44px;
    display: flex; align-items: center; justify-content: center;
    background: var(--primary-light);
    border-radius: 12px;
    flex-shrink: 0;
}

.card-body { flex: 1; }

.card-body h3 {
    font-size: 16px; font-weight: 600;
    margin-bottom: 2px;
}

.card-body p {
    font-size: 13px; color: var(--text-secondary);
}

.card-arrow {
    font-size: 18px; color: var(--text-secondary);
}

/* ── 表单 ── */
.form-card {
    background: var(--card);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
}

.form-card h3 {
    font-size: 18px; margin-bottom: 12px;
}

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

.form-group label {
    display: block;
    font-size: 14px; font-weight: 500;
    margin-bottom: 6px;
    color: var(--text);
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 16px;
    background: var(--card);
    color: var(--text);
    transition: border-color 0.2s;
    outline: none; -webkit-appearance: none;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--primary);
}

.form-hint {
    font-size: 13px; color: var(--text-secondary);
    margin-top: 8px;
}

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

.form-row {
    display: flex; gap: 12px;
}

.input-row {
    display: flex; gap: 8px;
}

.input-row input {
    flex: 1;
}

/* ── 按钮 ── */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 12px 24px;
    border: none; border-radius: 10px;
    font-size: 16px; font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    gap: 6px;
}

.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

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

.btn-secondary {
    background: var(--bg);
    color: var(--text);
}

.btn-danger {
    background: #FFF0EF;
    color: var(--danger);
}

.btn-full {
    width: 100%;
}

.btn-big {
    padding: 16px;
    font-size: 18px;
    border-radius: 12px;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
    border: none; border-radius: 8px;
    background: var(--bg);
    color: var(--text-secondary);
    cursor: pointer;
}

/* ── 统计行 ── */
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-bottom: 16px;
}

.stat-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 14px 8px;
    text-align: center;
    box-shadow: var(--shadow);
    cursor: pointer;
}

.stat-value {
    font-size: 20px; font-weight: 700;
    color: var(--primary);
    margin-bottom: 2px;
}

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

/* ── 成员栏 ── */
.member-bar {
    display: flex; align-items: center; gap: 8px;
    margin-bottom: 16px;
    overflow-x: auto;
}

.member-chips {
    display: flex; gap: 6px;
    flex: 1; overflow-x: auto;
    scrollbar-width: none;
}

.member-chip {
    display: inline-flex; align-items: center;
    padding: 6px 12px;
    background: var(--card);
    border-radius: 20px;
    font-size: 13px;
    white-space: nowrap;
    box-shadow: var(--shadow);
}

.member-chip.self {
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 500;
}

.member-add-btn {
    display: inline-flex; align-items: center;
    padding: 6px 14px;
    border: 1px dashed var(--primary);
    border-radius: 20px;
    background: none;
    color: var(--primary);
    font-size: 13px;
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0;
}

/* ── 邀请卡片 ── */
.invite-card {
    display: flex; align-items: center;
    background: linear-gradient(135deg, #E8F0FE, #D6E4FF);
    border-radius: var(--radius-lg);
    padding: 14px 16px;
    margin-bottom: 16px;
    gap: 10px;
    cursor: pointer;
}

.invite-left {
    display: flex; align-items: center; gap: 10px;
    flex: 1; min-width: 0;
}

.invite-icon {
    font-size: 24px;
}

.invite-text {
    display: flex; flex-direction: column;
    min-width: 0;
}

.invite-title {
    font-size: 14px; font-weight: 600;
    color: var(--text);
}

.invite-hint {
    font-size: 11px; color: var(--text-secondary);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.invite-code {
    font-size: 22px; font-weight: 800;
    letter-spacing: 3px;
    color: var(--primary);
    font-family: 'Courier New', monospace;
    flex-shrink: 0;
}

.invite-copy {
    font-size: 20px;
    flex-shrink: 0;
}

/* ── 区块 ── */
.section {
    margin-bottom: 20px;
}

.section-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 10px;
}

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

.filter-select {
    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    background: var(--card);
    color: var(--text);
    outline: none;
}

/* ── 分类柱状图 ── */
.category-bars {
    background: var(--card);
    border-radius: var(--radius);
    padding: 14px;
    box-shadow: var(--shadow);
}

.cat-bar-row {
    margin-bottom: 10px;
}

.cat-bar-row:last-child { margin-bottom: 0; }

.cat-bar-label {
    display: flex; justify-content: space-between;
    font-size: 13px; margin-bottom: 4px;
}

.cat-bar-track {
    height: 8px;
    background: var(--bg);
    border-radius: 4px;
    overflow: hidden;
}

.cat-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), #5AC8FA);
    border-radius: 4px;
    transition: width 0.5s ease;
}

/* ── 快捷录入 ── */
.quick-add-row {
    margin-bottom: 20px;
}

.quick-presets {
    display: flex; flex-wrap: wrap;
    gap: 8px; margin-top: 10px;
}

.chip {
    padding: 8px 14px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: var(--card);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s;
}

.chip:active {
    background: var(--primary-light);
    border-color: var(--primary);
}

/* ── 操作网格 ── */
.action-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-bottom: 20px;
}

.action-card {
    display: flex; flex-direction: column; align-items: center;
    background: var(--card);
    border-radius: var(--radius-lg);
    padding: 16px 8px;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: transform 0.15s;
}

.action-card:active { transform: scale(0.95); }

.action-icon {
    font-size: 28px;
    margin-bottom: 6px;
}

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

/* ── 支出列表 ── */
.expense-list {
    background: var(--card);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.expense-item {
    display: flex; align-items: center;
    padding: 14px;
    border-bottom: 1px solid var(--bg);
    gap: 12px;
}

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

.expense-icon {
    font-size: 24px;
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    background: var(--primary-light);
    border-radius: 10px;
    flex-shrink: 0;
}

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

.expense-top {
    display: flex; justify-content: space-between;
    margin-bottom: 2px;
}

.expense-category {
    font-size: 15px; font-weight: 500;
}

.expense-amount {
    font-size: 16px; font-weight: 600;
    color: var(--text);
}

.expense-bottom {
    font-size: 12px; color: var(--text-secondary);
    display: flex; gap: 4px;
    align-items: center;
}

.expense-delete {
    background: none; border: none;
    color: var(--text-secondary); font-size: 14px;
    cursor: pointer; padding: 4px 8px;
    opacity: 0.5;
}

.expense-actions {
    display: flex; gap: 4px;
    flex-shrink: 0;
}

.expense-edit {
    background: none; border: none;
    color: var(--primary); font-size: 16px;
    cursor: pointer; padding: 4px 8px;
    opacity: 0.6;
}

.expense-edit:hover { opacity: 1; }

/* ── 空状态 ── */
.empty-state {
    text-align: center;
    padding: 40px 20px;
}

.empty-icon {
    font-size: 48px; margin-bottom: 12px;
}

.empty-text {
    font-size: 16px; color: var(--text-secondary);
    margin-bottom: 4px;
}

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

.loading-text {
    text-align: center;
    padding: 20px;
    color: var(--text-secondary);
    font-size: 14px;
}

/* ── 弹窗 ── */
.modal {
    position: fixed; top:0; left:0; right:0; bottom:0;
    display: flex; align-items: flex-end; justify-content: center;
    z-index: 1000;
}

.modal-backdrop {
    position: absolute; top:0; left:0; right:0; bottom:0;
    background: rgba(0,0,0,0.4);
}

.modal-content {
    position: relative;
    background: var(--card);
    border-radius: 16px 16px 0 0;
    padding: 24px 20px;
    width: 100%;
    max-width: 640px;
    max-height: 80vh;
    overflow-y: auto;
    animation: slideUp 0.25s ease;
}

@keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

.modal-actions {
    display: flex; gap: 10px;
    margin-top: 20px;
}

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

/* ── 输入模式切换 ── */
.input-mode-toggle {
    display: flex;
    background: var(--bg);
    border-radius: 10px;
    padding: 4px;
    margin-bottom: 16px;
}

.mode-btn {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: 8px;
    background: transparent;
    font-size: 15px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.mode-btn.active {
    background: var(--card);
    color: var(--text);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    font-weight: 500;
}

/* ── 分类选择 ── */
.category-picker {
    display: flex; flex-wrap: wrap;
    gap: 8px;
}

.cat-option {
    padding: 8px 14px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: var(--card);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.15s;
}

.cat-option.selected {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* ── OCR上传区域 ── */
.ocr-upload-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: 16px;
}

.ocr-upload-icon {
    font-size: 48px; margin-bottom: 8px;
}

.ocr-upload-text {
    font-size: 16px; font-weight: 500;
    margin-bottom: 4px;
}

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

.ocr-loading {
    display: flex; flex-direction: column; align-items: center;
    padding: 40px;
    gap: 16px;
}

.spinner {
    width: 36px; height: 36px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.ocr-result-card {
    background: var(--bg);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 16px;
}

.ocr-result-card h4 {
    font-size: 15px; margin-bottom: 12px;
}

.ocr-raw {
    background: #F0F0F0;
    padding: 10px;
    border-radius: 8px;
    font-size: 12px;
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 100px;
    overflow-y: auto;
    margin-top: 8px;
}

/* ── 成功提示 ── */
.success-card {
    text-align: center;
    padding: 40px 20px;
    background: var(--card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.success-icon {
    font-size: 48px; margin-bottom: 12px;
}

.success-text {
    font-size: 18px; margin-bottom: 20px;
}

.success-card .btn {
    margin: 4px 8px;
}

/* ── 结算页 ── */
.settle-summary {
    margin-bottom: 20px;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.summary-item {
    background: var(--card);
    border-radius: var(--radius);
    padding: 16px;
    text-align: center;
    box-shadow: var(--shadow);
}

.summary-label {
    display: block;
    font-size: 12px; color: var(--text-secondary);
    margin-bottom: 4px;
}

.summary-value {
    font-size: 24px; font-weight: 700;
}

.summary-value.primary { color: var(--primary); }

/* 分类详情 */
.category-detail-list {
    background: var(--card);
    border-radius: var(--radius);
    padding: 14px;
    box-shadow: var(--shadow);
}

.cat-detail-row {
    display: flex; align-items: center;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--bg);
}

.cat-detail-row:last-child { border-bottom: none; }

.cat-detail-left {
    display: flex; align-items: center; gap: 8px;
    min-width: 72px;
}

.cat-detail-icon { font-size: 18px; }
.cat-detail-name { font-size: 14px; }

.cat-detail-right {
    display: flex; align-items: center; gap: 10px;
    flex: 1; justify-content: flex-end;
}

.cat-detail-bar-track {
    width: 100px; height: 6px;
    background: var(--bg);
    border-radius: 3px;
    overflow: hidden;
}

.cat-detail-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), #5AC8FA);
    border-radius: 3px;
}

.cat-detail-amount {
    font-weight: 600; font-size: 14px;
    min-width: 70px; text-align: right;
}

.cat-detail-pct {
    color: var(--text-secondary); font-size: 12px;
    min-width: 40px; text-align: right;
}

/* 收支平衡 */
.balance-list {
    display: flex; flex-direction: column;
    gap: 8px;
}

.balance-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 14px;
    display: flex; justify-content: space-between; align-items: center;
    box-shadow: var(--shadow);
    border-left: 4px solid;
}

.balance-card.positive { border-left-color: var(--success); }
.balance-card.negative { border-left-color: var(--danger); }
.balance-card.zero { border-left-color: var(--text-secondary); }

.balance-name {
    font-weight: 600; font-size: 15px;
}

.balance-detail {
    font-size: 12px; color: var(--text-secondary);
    margin-top: 2px;
}

.balance-result {
    font-weight: 600; font-size: 14px;
    text-align: right;
}

.balance-card.positive .balance-result { color: var(--success); }
.balance-card.negative .balance-result { color: var(--danger); }

/* 结算方案 */
.settlement-list {
    background: var(--card);
    border-radius: var(--radius);
    padding: 14px;
    box-shadow: var(--shadow);
}

.settle-item {
    display: flex; align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--bg);
    gap: 8px;
}

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

.settle-from { font-weight: 500; }
.settle-arrow { color: var(--text-secondary); font-size: 13px; }
.settle-to { font-weight: 500; flex: 1; }
.settle-amount { font-weight: 700; color: var(--danger); }

.settle-done {
    text-align: center;
    padding: 20px;
    font-size: 15px;
}

/* 成员支出明细 */
.member-detail-list {
    display: flex; flex-direction: column;
    gap: 10px;
}

.member-detail-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 14px;
    box-shadow: var(--shadow);
}

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

.member-detail-name {
    font-weight: 600; font-size: 15px;
}

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

.member-detail-cats {
    font-size: 12px; color: var(--text-secondary);
    margin-bottom: 8px;
}

.member-detail-expenses {
    display: flex; flex-direction: column;
    gap: 4px;
}

.member-expense-item {
    display: flex; align-items: center;
    padding: 6px 8px;
    background: var(--bg);
    border-radius: 8px;
    gap: 8px;
    font-size: 13px;
}

.expense-cat-tag {
    padding: 2px 8px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 6px;
    font-size: 11px;
    font-weight: 500;
}

.expense-note-text {
    flex: 1; color: var(--text-secondary);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.expense-amount-text {
    font-weight: 600;
}

/* ── 同步页 ── */
.sync-intro {
    text-align: center;
    margin-bottom: 24px;
}

.sync-intro-icon {
    font-size: 48px; margin-bottom: 8px;
}

.steps-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
}

.step {
    display: flex; align-items: center;
    gap: 12px;
    padding: 8px 0;
    border-bottom: 1px solid var(--bg);
}

.step:last-child { border-bottom: none; }

.step-num {
    width: 26px; height: 26px;
    display: flex; align-items: center; justify-content: center;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    font-size: 13px; font-weight: 600;
    flex-shrink: 0;
}

.step-text {
    font-size: 14px;
}

.export-json-box {
    margin: 12px 0;
}

.export-json-box textarea {
    resize: vertical;
}

/* 合并对账 */
.reconcile-list {
    display: flex; flex-direction: column;
    gap: 10px;
}

.settlement-history {
    display: flex; flex-direction: column;
    gap: 6px;
}

.history-item {
    display: flex; align-items: center; justify-content: space-between;
    background: var(--card);
    border-radius: var(--radius);
    padding: 12px 14px;
    box-shadow: var(--shadow);
    cursor: pointer;
}

.history-info {
    display: flex; align-items: center; gap: 12px;
    flex-wrap: wrap;
}

.history-total {
    font-weight: 700; font-size: 16px;
    color: var(--primary);
}

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

.history-arrow {
    color: var(--text-secondary);
}

.network-url-box {
    margin: 8px 0;
}

.reconcile-summary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 10px;
}

.reconcile-member-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 14px;
    box-shadow: var(--shadow);
}

.reconcile-member-header {
    display: flex; justify-content: space-between;
    margin-bottom: 8px;
}

.reconcile-member-name {
    font-weight: 600;
}

.reconcile-member-total {
    font-weight: 600; color: var(--primary);
}

.reconcile-expenses {
    display: flex; flex-direction: column;
    gap: 4px;
}

.reconcile-expense-item {
    display: flex; align-items: center;
    padding: 6px 8px;
    background: var(--bg);
    border-radius: 8px;
    gap: 8px;
    font-size: 13px;
}

/* ── 成员列表弹窗 ── */
.member-list-modal {
    margin-bottom: 16px;
}

.member-item {
    display: flex; justify-content: space-between; align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--bg);
}

.member-name { font-size: 15px; }

.member-badge {
    padding: 2px 8px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 6px;
    font-size: 12px;
}

/* ── 分摊选项 ── */
.radio-label {
    display: flex; align-items: center;
    gap: 8px;
    padding: 8px 0;
    font-size: 14px;
    cursor: pointer;
}

.radio-label input[type="radio"] {
    width: 18px; height: 18px;
    accent-color: var(--primary);
}

.member-checkboxes {
    display: flex; flex-wrap: wrap;
    gap: 8px;
}

.checkbox-label {
    display: flex; align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--bg);
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    accent-color: var(--primary);
}

/* ── 最近行程 ── */
.recent-list {
    margin-top: 20px;
}

.recent-list h3 {
    font-size: 16px; margin-bottom: 10px;
}

.recent-item {
    display: flex; justify-content: space-between; align-items: center;
    background: var(--card);
    padding: 14px;
    border-radius: var(--radius);
    margin-bottom: 8px;
    cursor: pointer;
    box-shadow: var(--shadow);
}

.recent-name { font-weight: 500; }
.recent-code { color: var(--text-secondary); font-size: 13px; }

/* ── Toast ── */
.toast {
    position: fixed; bottom: 100px; left: 50%; transform: translateX(-50%);
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 14px;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
    white-space: nowrap;
}

.toast.show {
    opacity: 1;
}

/* ── 截图预览 ── */
.screenshot-modal-content {
    align-self: center;
    border-radius: 16px !important;
    max-height: 90vh;
    overflow-y: auto;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

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

.screenshot-preview {
    margin-bottom: 16px;
}

/* ── 响应式 ── */
@media (max-width: 380px) {
    .stats-row { grid-template-columns: repeat(2, 1fr); }
    .action-grid { grid-template-columns: repeat(2, 1fr); }
    .summary-grid { grid-template-columns: 1fr; }
    .cat-detail-right { flex-wrap: wrap; }
}

@media (min-width: 640px) {
    .main-content {
        padding: 24px;
        padding-top: 76px;
        padding-bottom: 40px;
    }
    .stats-row { grid-template-columns: repeat(4, 1fr); }
    .action-grid { grid-template-columns: repeat(4, 1fr); }
}