/* ========== CSS Variables ========== */
:root {
    --bg-page: #f0f2f5;
    --bg-card: #ffffff;
    --bg-sidebar: #1e2a3a;
    --bg-sidebar-active: #2d3f54;
    --bg-hover: #f5f7fa;
    --bg-input: #f8f9fb;

    --text-primary: #1a1a2e;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --text-sidebar: #a0aec0;
    --text-sidebar-active: #ffffff;

    --color-income: #ec5b56;
    --color-income-bg: #fef0f0;
    --color-expense: #2ec4b6;
    --color-expense-bg: #e8faf8;
    --color-savings: #5b8def;
    --color-savings-bg: #eef4ff;
    --color-networth: #9b59b6;
    --color-networth-bg: #f5eeff;
    --color-asset: #5b8def;
    --color-liability: #ffa940;
    --color-danger: #e74c3c;
    --color-success: #27ae60;
    --color-warning: #f39c12;

    --border-color: #e8eaed;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);

    --sidebar-width: 220px;
    --transition: all 0.25s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--bg-page);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ========== Layout ========== */
#app {
    display: flex;
    min-height: 100vh;
}

/* ========== Sidebar ========== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    z-index: 100;
}

.sidebar-header {
    padding: 24px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

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

.logo-icon-svg {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #8fb3ff;
}

.logo-text {
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 1px;
}

.nav-list {
    list-style: none;
    padding: 12px 0;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: var(--text-sidebar);
    cursor: pointer;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background: rgba(255,255,255,0.06);
    color: #fff;
}

.nav-item.active {
    background: var(--bg-sidebar-active);
    color: var(--text-sidebar-active);
    border-left-color: var(--color-income);
}

.nav-icon {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

.nav-icon-svg {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-sidebar);
    transition: var(--transition);
}

.nav-item.active .nav-icon-svg,
.nav-item:hover .nav-icon-svg {
    color: #fff;
}

.nav-label {
    font-size: 14px;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255,255,255,0.08);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.btn-text {
    background: none;
    border: none;
    color: var(--text-sidebar);
    font-size: 13px;
    padding: 8px 12px;
    text-align: left;
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.btn-text:hover {
    background: rgba(255,255,255,0.08);
    color: #fff;
}

/* 用户区域 */
.user-area {
    margin-top: 8px;
    padding-top: 12px;
    border-top: 1px solid rgba(255,255,255,0.08);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 12px;
}

.user-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-savings), #7b68ee);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.user-name {
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ========== Main Content ========== */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 32px;
    min-height: 100vh;
}

.view {
    display: none;
    animation: fadeIn 0.3s ease;
}

.view.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ========== Page Header ========== */
.page-header {
    margin-bottom: 24px;
}

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

.header-filter {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.header-filter select {
    padding: 8px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    background: var(--bg-card);
    cursor: pointer;
}

.btn-small {
    padding: 8px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 13px;
    background: var(--bg-card);
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
}

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

.month-check-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 8px;
    max-height: 260px;
    overflow-y: auto;
    margin-bottom: 12px;
}

.month-check {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
}

.month-check:hover {
    border-color: var(--primary-color);
}

.month-check input {
    accent-color: var(--primary-color);
}

.month-check-actions {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.modal-tip {
    color: var(--text-light);
    font-size: 13px;
    margin-bottom: 12px;
}

.page-header h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 14px;
}

/* ========== Summary Cards ========== */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.summary-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.summary-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
}

.income-card::before { background: var(--color-income); }
.expense-card::before { background: var(--color-expense); }
.savings-card::before { background: var(--color-savings); }
.networth-card::before { background: var(--color-networth); }

.summary-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card-icon {
    font-size: 36px;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-sm);
    flex-shrink: 0;
}

.income-card .card-icon { background: var(--color-income-bg); }
.expense-card .card-icon { background: var(--color-expense-bg); }
.savings-card .card-icon { background: var(--color-savings-bg); }
.networth-card .card-icon { background: var(--color-networth-bg); }

.card-body {
    display: flex;
    flex-direction: column;
}

.card-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.card-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.income-card .card-value { color: var(--color-income); }
.expense-card .card-value { color: var(--color-expense); }
.savings-card .card-value { color: var(--color-savings); }
.networth-card .card-value { color: var(--color-networth); }

.card-sub {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 2px;
}

/* ========== Chart Cards ========== */
.chart-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.chart-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.chart-card h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.chart-card canvas {
    max-height: 300px;
}

/* ========== Form Card ========== */
.form-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

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

.form-row {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: flex-end;
}

.form-group {
    flex: 1;
    min-width: 160px;
}

.form-group label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    font-weight: 500;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--bg-input);
    font-size: 14px;
    color: var(--text-primary);
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-savings);
    box-shadow: 0 0 0 3px var(--color-savings-bg);
}

/* ========== Buttons ========== */
.btn-primary {
    padding: 10px 28px;
    background: var(--color-savings);
    color: #fff;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    height: 40px;
}

.btn-primary:hover {
    background: #4a7de0;
    box-shadow: 0 4px 12px rgba(91,141,239,0.3);
}

.btn-small {
    padding: 6px 14px;
    background: var(--color-savings);
    color: #fff;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-small:hover {
    background: #4a7de0;
}

.btn-secondary {
    padding: 10px 24px;
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-danger {
    padding: 10px 24px;
    background: var(--color-danger);
    color: #fff;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-danger:hover {
    background: #c0392b;
}

/* ========== Category Tags ========== */
.category-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 20px 24px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
    flex-wrap: wrap;
    gap: 12px;
}

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

.category-add {
    display: flex;
    gap: 8px;
}

.category-add input {
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 13px;
    width: 160px;
}

.category-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.cat-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 13px;
    color: var(--text-primary);
}

.cat-tag .cat-remove {
    cursor: pointer;
    color: var(--text-light);
    font-size: 16px;
    line-height: 1;
    margin-left: 2px;
}

.cat-tag .cat-remove:hover {
    color: var(--color-danger);
}

.cat-tag.custom {
    border-style: dashed;
    border-color: var(--color-savings);
}

/* ========== Data Table ========== */
.table-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    margin-bottom: 20px;
}

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

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

.table-header h3 {
    margin-bottom: 0;
}

.table-filter {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.table-filter select,
.table-filter .filter-search {
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 13px;
    background: var(--bg-card);
    cursor: pointer;
}

.table-filter .filter-search {
    cursor: text;
    min-width: 140px;
}

.table-filter .filter-search:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

.dt-row {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1fr 2fr 90px;
    gap: 12px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    align-items: center;
    transition: var(--transition);
}

.dt-row:hover {
    background: var(--bg-hover);
}

.dt-row.header {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 13px;
    border-bottom: 2px solid var(--border-color);
    background: var(--bg-input);
    border-radius: var(--border-radius-sm) var(--border-radius-sm) 0 0;
}

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

.dt-cell {
    font-size: 14px;
}

.dt-cell.amount {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.dt-cell.amount.income { color: var(--color-income); }
.dt-cell.amount.expense { color: var(--color-expense); }
.dt-cell.amount.asset { color: var(--color-asset); }
.dt-cell.amount.liability { color: var(--color-liability); }

.dt-cell .cat-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    background: var(--bg-input);
}

.dt-cell .note {
    color: var(--text-secondary);
    font-size: 13px;
}

.dt-cell .date {
    color: var(--text-light);
    font-size: 13px;
}

.dt-actions {
    display: flex;
    gap: 4px;
    justify-content: flex-end;
}

.dt-actions .btn-act {
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    font-size: 16px;
    padding: 4px 6px;
    border-radius: 4px;
    transition: var(--transition);
    line-height: 1;
}

.dt-actions .btn-act:hover {
    background: var(--bg-hover);
}

.dt-actions .btn-edit:hover {
    color: var(--primary-color);
}

.dt-actions .btn-del:hover {
    color: var(--color-danger);
    background: var(--color-income-bg);
}

.dt-empty {
    text-align: center;
    padding: 40px;
    color: var(--text-light);
}

/* ========== Mini Table (Overview) ========== */
.mini-table .mt-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.mini-table .mt-row:last-child {
    border-bottom: none;
}

.mt-label {
    font-size: 14px;
    color: var(--text-primary);
}

.mt-value {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.overview-tables {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* ========== Overview Tables ========== */
.overview-tables .table-card {
    margin-bottom: 0;
}

/* ========== AI Advisor ========== */
.health-score-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 32px;
    display: flex;
    align-items: center;
    gap: 40px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.score-circle {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 6px solid var(--border-color);
    position: relative;
}

.score-circle.good { border-color: var(--color-success); background: rgba(39,174,96,0.05); }
.score-circle.warning { border-color: var(--color-warning); background: rgba(243,156,18,0.05); }
.score-circle.danger { border-color: var(--color-danger); background: rgba(231,76,60,0.05); }

.score-number {
    font-size: 42px;
    font-weight: 800;
    line-height: 1;
}

.score-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.score-breakdown {
    flex: 1;
    min-width: 300px;
}

.score-breakdown .sb-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}

.sb-label {
    width: 120px;
    font-size: 13px;
    color: var(--text-secondary);
    flex-shrink: 0;
}

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

.sb-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.6s ease;
}

.sb-score {
    width: 40px;
    text-align: right;
    font-size: 14px;
    font-weight: 600;
    flex-shrink: 0;
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.metric-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.metric-card .mc-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.metric-card .mc-value {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 4px;
}

.metric-card .mc-desc {
    font-size: 12px;
    color: var(--text-light);
}

/* Advice List */
.advisor-section {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.advisor-section h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

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

.advice-item {
    display: flex;
    gap: 14px;
    padding: 16px;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.advice-item:hover {
    box-shadow: var(--shadow-sm);
}

.advice-item.success { border-left: 4px solid var(--color-success); background: rgba(39,174,96,0.03); }
.advice-item.warning { border-left: 4px solid var(--color-warning); background: rgba(243,156,18,0.03); }
.advice-item.danger { border-left: 4px solid var(--color-danger); background: rgba(231,76,60,0.03); }
.advice-item.info { border-left: 4px solid var(--color-savings); background: rgba(91,141,239,0.03); }

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

.advice-icon svg {
    color: var(--color-savings);
}

.advice-item.success .advice-icon { background: rgba(39,174,96,0.1); }
.advice-item.success .advice-icon svg { color: var(--color-success); }
.advice-item.warning .advice-icon { background: rgba(243,156,18,0.12); }
.advice-item.warning .advice-icon svg { color: var(--color-warning); }
.advice-item.danger .advice-icon { background: rgba(231,76,60,0.1); }
.advice-item.danger .advice-icon svg { color: var(--color-danger); }
.advice-item.info .advice-icon { background: rgba(91,141,239,0.12); }
.advice-item.info .advice-icon svg { color: var(--color-savings); }

.advice-content {
    flex: 1;
}

.advice-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
}

.advice-text {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Ratio List */
.ratio-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.ratio-item {
    padding: 16px;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
}

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

.ratio-item .ri-name {
    font-size: 14px;
    font-weight: 500;
}

.ratio-item .ri-value {
    font-size: 18px;
    font-weight: 700;
}

.ratio-item .ri-bar {
    height: 6px;
    background: var(--bg-input);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 8px;
}

.ratio-item .ri-fill {
    height: 100%;
    border-radius: 3px;
}

.ratio-item .ri-status {
    font-size: 12px;
    color: var(--text-light);
}

.ratio-item .ri-status.good { color: var(--color-success); }
.ratio-item .ri-status.warning { color: var(--color-warning); }
.ratio-item .ri-status.danger { color: var(--color-danger); }

/* ========== Modal ========== */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-overlay.show {
    display: flex;
}

.modal {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 28px;
    max-width: 400px;
    width: 90%;
    box-shadow: var(--shadow-lg);
}

.modal h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
}

.modal p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* ========== 登录 / 注册弹窗 ========== */
.modal-auth {
    max-width: 380px;
    padding: 30px 32px 26px;
}

.auth-tabs {
    display: flex;
    gap: 24px;
    margin-bottom: 22px;
    border-bottom: 1px solid var(--border-color);
}

.auth-tab {
    background: none;
    border: none;
    padding: 0 2px 10px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    position: relative;
    transition: var(--transition);
    font-family: inherit;
}

.auth-tab.active {
    color: var(--text-primary);
}

.auth-tab.active::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 2px;
    background: var(--color-savings);
    border-radius: 2px;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.auth-form .form-group {
    min-width: 0;
}

.auth-submit {
    width: 100%;
    margin-top: 6px;
}

.auth-tip {
    min-height: 20px;
    margin-top: 12px;
    font-size: 13px;
    text-align: center;
}

.auth-tip.error {
    color: var(--color-danger);
}

.auth-tip.success {
    color: var(--color-success);
}

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

/* ========== Toast ========== */
.toast {
    position: fixed;
    bottom: 32px;
    right: 32px;
    background: var(--text-primary);
    color: #fff;
    padding: 14px 24px;
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    box-shadow: var(--shadow-lg);
    transform: translateY(100px);
    opacity: 0;
    transition: var(--transition);
    z-index: 2000;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

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

/* ========== Responsive (Mobile) ========== */
/* 移动端布局：顶部 App Bar + 底部 Tab Bar */
@media (max-width: 768px) {
    #app { display: block; }

    /* 底部 Tab Bar */
    .sidebar {
        width: 100%;
        height: 58px;
        top: auto;
        bottom: 0;
        left: 0;
        flex-direction: row;
        align-items: stretch;
        padding-bottom: env(safe-area-inset-bottom);
        box-shadow: 0 -2px 10px rgba(0,0,0,0.15);
    }

    /* 顶部 App Bar */
    .sidebar-header {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        min-height: 52px;
        padding: calc(10px + env(safe-area-inset-top)) 16px 10px;
        justify-content: center;
        background: var(--bg-sidebar);
        border-bottom: 1px solid rgba(255,255,255,0.08);
        box-shadow: 0 2px 8px rgba(0,0,0,0.15);
        z-index: 110;
    }
    .logo-icon-svg svg { width: 24px; height: 24px; }
    .logo-text {
        font-size: 16px;
        letter-spacing: 0.5px;
        max-width: 55vw;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .nav-list {
        display: flex;
        flex-direction: row;
        flex: 1;
        padding: 0;
    }
    .nav-item {
        flex: 1;
        flex-direction: column;
        justify-content: center;
        gap: 2px;
        padding: 4px 2px;
        border-left: none;
        border-top: 3px solid transparent;
        min-width: 0;
    }
    .nav-item.active {
        border-left-color: transparent;
        border-top-color: var(--color-income);
    }
    .nav-icon { font-size: 17px; width: auto; line-height: 1; }
    .nav-icon-svg { width: auto; }
    .nav-label {
        font-size: 10px;
        line-height: 1.3;
        max-width: 100%;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    /* 底部工具按钮隐藏，用户区浮动到右上角 */
    .sidebar-footer {
        height: 0;
        padding: 0;
        border: none;
        overflow: visible;
    }
    .sidebar-footer > .btn-text { display: none; }
    .user-area {
        position: fixed;
        top: 0;
        right: 8px;
        min-height: 52px;
        padding: calc(8px + env(safe-area-inset-top)) 12px 8px;
        margin: 0;
        border: none;
        flex-direction: row;
        align-items: center;
        gap: 8px;
        background: var(--bg-sidebar);
        z-index: 120;
    }
    .user-area .btn-text { padding: 6px 10px; text-align: center; }
    .user-info { padding: 2px 6px; }
    .user-name { max-width: 90px; font-size: 12px; }

    .main-content {
        margin-left: 0;
        padding: calc(68px + env(safe-area-inset-top)) 16px calc(84px + env(safe-area-inset-bottom));
    }

    .page-header h1 { font-size: 20px; }
    .page-subtitle { font-size: 13px; }
    .header-flex { flex-direction: column; align-items: stretch; gap: 12px; }
    .header-filter { width: 100%; }
    .header-filter select { flex: 1; min-width: 0; }

    /* 摘要卡片 2 列 */
    .summary-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
        margin-bottom: 20px;
    }
    .summary-card {
        padding: 14px;
        gap: 10px;
        flex-direction: column;
        align-items: flex-start;
    }
    .card-icon { font-size: 20px; width: 36px; height: 36px; }
    .card-value { font-size: 17px; }
    .card-label { font-size: 12px; }
    .card-sub { font-size: 11px; }

    /* 卡片单列、内边距收紧 */
    .chart-grid { grid-template-columns: 1fr; gap: 14px; margin-bottom: 16px; }
    .overview-tables { grid-template-columns: 1fr; gap: 14px; }
    .chart-card, .form-card, .table-card, .category-card, .advisor-section {
        padding: 16px;
        margin-bottom: 16px;
    }
    .chart-card h3, .form-card h3, .table-card h3, .category-card h3, .advisor-section h3 {
        font-size: 15px;
    }
    .chart-card canvas { max-height: 240px; }

    /* 表单堆叠 */
    .form-row { gap: 12px; }
    .form-group { min-width: 100%; }
    .form-row .btn-primary { width: 100%; }
    .category-header { flex-direction: column; align-items: stretch; }
    .category-add { width: 100%; }
    .category-add input { flex: 1; width: auto; min-width: 0; }

    /* 筛选区堆叠 */
    .table-header { flex-direction: column; align-items: stretch; gap: 12px; }
    .table-filter { flex-wrap: wrap; }
    .table-filter select { flex: 1; min-width: 0; }
    .table-filter .filter-search { flex: 1 1 100%; min-width: 0; }

    /* 记录卡片化 */
    .data-table { overflow: visible; }
    .dt-row {
        grid-template-columns: 1fr auto;
        grid-template-areas:
            "cat amount"
            "date actions"
            "note actions";
        gap: 4px 12px;
        padding: 12px 14px;
        border: 1px solid var(--border-color);
        border-radius: 10px;
        margin-bottom: 10px;
        align-items: start;
        background: var(--bg-card);
    }
    .dt-row:hover { background: var(--bg-hover); }
    .dt-row.header { display: none; }
    .dt-row:last-child { margin-bottom: 0; }
    .dt-cell:nth-child(1) { grid-area: cat; align-self: center; }
    .dt-cell:nth-child(2) { grid-area: amount; text-align: right; justify-self: end; align-self: center; }
    .dt-cell:nth-child(3) { grid-area: date; }
    .dt-cell:nth-child(4) { grid-area: note; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
    .dt-cell:nth-child(5) { grid-area: actions; justify-self: end; align-self: center; }
    .dt-actions { justify-content: flex-end; }
    .dt-actions .btn-act { font-size: 17px; padding: 8px; }
    .dt-empty { padding: 24px; }

    /* AI 顾问 */
    .health-score-card { flex-direction: column; align-items: center; padding: 20px; gap: 20px; }
    .score-circle { width: 120px; height: 120px; }
    .score-number { font-size: 34px; }
    .score-breakdown { min-width: 100%; width: 100%; }
    .metrics-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .metric-card { padding: 14px; }
    .metric-card .mc-value { font-size: 18px; }
    .ratio-list { grid-template-columns: 1fr; }
    .advice-item { padding: 12px; gap: 10px; }
    .advice-icon { width: 34px; height: 34px; font-size: 18px; }
    .advice-icon svg { width: 18px; height: 18px; }

    /* 模态框：底部弹窗 */
    .modal-overlay { align-items: flex-end; }
    .modal {
        width: 100%;
        max-width: 100%;
        max-height: 85vh;
        overflow-y: auto;
        border-radius: 16px 16px 0 0;
        padding: 24px 20px calc(24px + env(safe-area-inset-bottom));
    }
    .month-check-list { grid-template-columns: repeat(2, 1fr); }
    .modal-actions { flex-wrap: wrap; }
    .modal-actions .btn-primary,
    .modal-actions .btn-secondary,
    .modal-actions .btn-danger { flex: 1; text-align: center; }

    /* Toast 底部居中 */
    .toast {
        left: 50%;
        right: auto;
        bottom: calc(76px + env(safe-area-inset-bottom));
        transform: translate(-50%, 120px);
        max-width: 85vw;
        text-align: center;
    }
    .toast.show { transform: translate(-50%, 0); }
}

/* 小屏微调 */
@media (max-width: 400px) {
    .nav-label { font-size: 9px; }
    .summary-grid { gap: 10px; }
    .card-value { font-size: 15px; }
    .card-icon { width: 32px; height: 32px; font-size: 17px; }
}