/* 肥肥鲨银行系统 - 公共样式 */
:root {
    --primary: #1a5f7a;
    --primary-dark: #134b61;
    --primary-light: #2d8fb0;
    --secondary: #c84b31;
    --secondary-light: #e85d3f;
    --gold: #d4a843;
    --gold-light: #f0c96e;
    --bg: #f0f2f5;
    --card-bg: #ffffff;
    --text: #1a1a2e;
    --text-light: #666;
    --border: #e0e0e0;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;
    --shadow: 0 2px 12px rgba(0,0,0,0.08);
    --shadow-hover: 0 8px 24px rgba(0,0,0,0.12);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s ease;
}

* { 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);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

/* 动画 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

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

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.fade-in { animation: fadeIn 0.5s ease; }
.slide-in { animation: slideIn 0.4s ease; }

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 24px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    box-shadow: 0 4px 12px rgba(26, 95, 122, 0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(26, 95, 122, 0.4); }

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
    color: white;
    box-shadow: 0 4px 12px rgba(200, 75, 49, 0.3);
}
.btn-secondary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(200, 75, 49, 0.4); }

.btn-gold {
    background: linear-gradient(135deg, var(--gold), var(--gold-light));
    color: #1a1a2e;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(212, 168, 67, 0.3);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(212, 168, 67, 0.4); }

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}
.btn-outline:hover { background: var(--bg); border-color: var(--primary); color: var(--primary); }

.btn-sm { padding: 6px 14px; font-size: 12px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-block { width: 100%; }

/* 卡片 */
.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
    transition: var(--transition);
}
.card:hover { box-shadow: var(--shadow-hover); }

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
}

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

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

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    transition: var(--transition);
    background: var(--card-bg);
    color: var(--text);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 95, 122, 0.1);
}

.form-input::placeholder { color: #aaa; }

.input-group {
    display: flex;
    align-items: center;
    gap: 0;
}
.input-group .form-input { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.input-group .btn { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }

/* 表格 */
.table-container { overflow-x: auto; }

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table th {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 14px 16px;
    text-align: left;
    font-weight: 500;
    white-space: nowrap;
}

.data-table th:first-child { border-radius: var(--radius-sm) 0 0 0; }
.data-table th:last-child { border-radius: 0 var(--radius-sm) 0 0; }

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    color: var(--text);
}

.data-table tr:hover td { background: rgba(26, 95, 122, 0.03); }

.data-table .amount-positive { color: var(--success); font-weight: 600; }
.data-table .amount-negative { color: var(--danger); font-weight: 600; }

/* 状态标签 */
.tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.tag-success { background: rgba(40, 167, 69, 0.12); color: var(--success); }
.tag-danger { background: rgba(220, 53, 69, 0.12); color: var(--danger); }
.tag-warning { background: rgba(255, 193, 7, 0.12); color: #856404; }
.tag-info { background: rgba(23, 162, 184, 0.12); color: var(--info); }
.tag-gold { background: rgba(212, 168, 67, 0.12); color: #8a6d1f; }

/* 导航 */
.nav-sidebar {
    width: 260px;
    background: linear-gradient(180deg, var(--primary-dark), var(--primary));
    color: white;
    min-height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
}

.nav-brand {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-brand-icon {
    width: 40px;
    height: 40px;
    background: var(--gold);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.nav-brand-text {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 1px;
}

.nav-brand-sub {
    font-size: 11px;
    opacity: 0.7;
    letter-spacing: 2px;
}

.nav-menu { flex: 1; padding: 16px 0; overflow-y: auto; }

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 24px;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border-left: 3px solid transparent;
}

.nav-item:hover, .nav-item.active {
    background: rgba(255,255,255,0.08);
    color: white;
    border-left-color: var(--gold);
}

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

.nav-footer {
    padding: 16px 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 12px;
    opacity: 0.6;
}

/* 主内容区 */
.main-content {
    margin-left: 260px;
    min-height: 100vh;
    padding: 24px 32px;
}

/* 顶部栏 */
.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.top-bar-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
}

.top-bar-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 16px;
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary);
}

.stat-card.primary::before { background: var(--primary); }
.stat-card.success::before { background: var(--success); }
.stat-card.warning::before { background: var(--warning); }
.stat-card.danger::before { background: var(--danger); }
.stat-card.gold::before { background: var(--gold); }

.stat-label {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 8px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.stat-change {
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.stat-change.up { color: var(--success); }
.stat-change.down { color: var(--danger); }

/* 模态框 */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

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

.modal {
    background: var(--card-bg);
    border-radius: var(--radius);
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
    animation: fadeIn 0.3s ease;
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title { font-size: 18px; font-weight: 600; }

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: var(--bg);
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.modal-close:hover { background: var(--danger); color: white; }

.modal-body { padding: 24px; }
.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* 分页 */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
}

.page-btn {
    min-width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.page-btn:hover { border-color: var(--primary); color: var(--primary); }
.page-btn.active { background: var(--primary); color: white; border-color: var(--primary); }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* 搜索框 */
.search-box {
    position: relative;
    width: 300px;
}

.search-box input {
    width: 100%;
    padding: 10px 16px 10px 40px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 95, 122, 0.1);
}

.search-box::before {
    content: '🔍';
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 14px;
    opacity: 0.5;
}

/* 加载 */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,0.9);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 16px;
}

.loading-overlay.active { display: flex; }

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* 提示消息 */
.toast-container {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toast {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    color: white;
    font-size: 14px;
    font-weight: 500;
    box-shadow: var(--shadow-hover);
    animation: slideIn 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 280px;
}

.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-warning { background: var(--warning); color: #333; }
.toast-info { background: var(--info); }

/* 响应式 */
@media (max-width: 1024px) {
    .nav-sidebar { width: 220px; }
    .main-content { margin-left: 220px; padding: 20px; }
}

@media (max-width: 768px) {
    .nav-sidebar { transform: translateX(-100%); transition: transform 0.3s ease; }
    .nav-sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; padding: 16px; }
    .stats-grid { grid-template-columns: 1fr; }
    .search-box { width: 100%; }
}

/* 金额输入 */
.amount-input {
    font-size: 24px !important;
    font-weight: 700;
    text-align: center;
    letter-spacing: 2px;
}

.amount-input::placeholder { font-size: 16px; font-weight: 400; }

/* 余额展示 */
.balance-display {
    text-align: center;
    padding: 32px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius);
    color: white;
    margin-bottom: 24px;
}

.balance-label {
    font-size: 14px;
    opacity: 0.8;
    margin-bottom: 8px;
    letter-spacing: 2px;
}

.balance-amount {
    font-size: 42px;
    font-weight: 700;
    letter-spacing: 2px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.balance-amount small {
    font-size: 18px;
    opacity: 0.8;
    margin-left: 4px;
}

/* 快捷操作 */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.quick-action {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow);
    text-decoration: none;
    color: var(--text);
}

.quick-action:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.quick-action-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    font-size: 24px;
}

.quick-action-title { font-size: 14px; font-weight: 500; }

/* 交易明细 */
.transaction-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

.transaction-item:hover { background: rgba(26, 95, 122, 0.03); }

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

.transaction-info { display: flex; align-items: center; gap: 14px; }

.transaction-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.transaction-icon.in { background: rgba(40, 167, 69, 0.1); }
.transaction-icon.out { background: rgba(220, 53, 69, 0.1); }

.transaction-detail h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.transaction-detail p { font-size: 12px; color: var(--text-light); }

.transaction-amount { text-align: right; }
.transaction-amount .amount { font-size: 16px; font-weight: 700; }
.transaction-amount .time { font-size: 12px; color: var(--text-light); margin-top: 4px; }

/* 登录页 */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(212,168,67,0.1) 0%, transparent 70%);
    top: -200px;
    right: -200px;
}

.login-box {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius);
    padding: 48px;
    width: 100%;
    max-width: 440px;
    box-shadow: 0 25px 80px rgba(0,0,0,0.3);
    position: relative;
    z-index: 1;
}

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

.login-logo-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--gold), var(--gold-light));
    border-radius: var(--radius);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin-bottom: 16px;
}

.login-logo h1 { font-size: 24px; font-weight: 700; color: var(--text); }
.login-logo p { font-size: 13px; color: var(--text-light); margin-top: 4px; }

.login-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 24px;
    border-bottom: 2px solid var(--border);
}

.login-tab {
    flex: 1;
    padding: 12px;
    text-align: center;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-light);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: var(--transition);
}

.login-tab.active { color: var(--primary); border-bottom-color: var(--primary); }

.login-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 12px;
    color: var(--text-light);
}

/* 仪表盘 */
.dashboard-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
}

@media (max-width: 1200px) {
    .dashboard-grid { grid-template-columns: 1fr; }
}

/* 图表占位 */
.chart-placeholder {
    height: 300px;
    background: linear-gradient(90deg, var(--bg) 25%, #e8e8e8 50%, var(--bg) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
}