/* SPV投资管理系统 V3 - 样式 */
:root {
    --primary: #1976d2;
    --primary-dark: #1565c0;
    --success: #4caf50;
    --warning: #ff9800;
    --danger: #f44336;
    --teal: #009688;
    --purple: #9c27b0;
    --orange: #ff5722;
    --bg: #f5f7fa;
    --card-bg: #fff;
    --text: #333;
    --text-light: #666;
    --border: #e0e0e0;
    --sidebar: #1a237e;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
}

/* ========== 登录页 ========== */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--sidebar) 100%);
}

.login-box {
    background: var(--card-bg);
    padding: 50px;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    width: 100%;
    max-width: 420px;
}

.login-logo {
    text-align: center;
    margin-bottom: 40px;
}

.login-logo i {
    font-size: 64px;
    color: var(--primary);
    margin-bottom: 15px;
}

.login-logo h1 { font-size: 26px; margin-bottom: 5px; }
.login-logo p { color: var(--text-light); }

.input-group {
    position: relative;
    margin-bottom: 20px;
}

.input-group i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
}

.input-group input {
    width: 100%;
    padding: 14px 14px 14px 45px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.3s;
}

.input-group input:focus {
    border-color: var(--primary);
    outline: none;
}

.btn-login {
    width: 100%;
    padding: 14px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-login:hover { background: var(--primary-dark); }

.error-msg {
    color: var(--danger);
    text-align: center;
    margin-top: 15px;
    min-height: 20px;
}

/* ========== 主布局 ========== */
.top-header {
    height: 60px;
    background: var(--card-bg);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 25px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 600;
    color: var(--primary);
}

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

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-light);
}

.user-menu i { font-size: 20px; color: var(--primary); }

.btn-logout {
    background: none;
    border: none;
    color: #999;
    cursor: pointer;
    padding: 5px;
    transition: all 0.3s;
}

.btn-logout:hover { color: var(--danger); }

.main-layout {
    display: flex;
    padding-top: 60px;
    min-height: 100vh;
}

/* ========== 侧边栏 ========== */
.sidebar {
    width: 220px;
    background: var(--sidebar);
    position: fixed;
    top: 60px;
    left: 0;
    bottom: 0;
    overflow-y: auto;
}

.nav-menu { list-style: none; padding: 20px 0; }

.nav-menu li { margin: 5px 0; }

.nav-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 25px;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: all 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: #fff;
    background: rgba(255,255,255,0.1);
    border-left: 3px solid #fff;
}

.nav-menu a.active { background: rgba(255,255,255,0.15); }

/* ========== 内容区 ========== */
.content-area {
    flex: 1;
    margin-left: 220px;
    padding: 25px;
    min-height: calc(100vh - 60px);
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.page-header h2 {
    font-size: 22px;
    color: var(--text);
}

.page-header h2 i {
    color: var(--primary);
    margin-right: 10px;
}

/* ========== KPI卡片 ========== */
.kpi-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 25px;
}

.kpi-card {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    display: flex;
    align-items: center;
    gap: 20px;
    border-left: 4px solid transparent;
}

.kpi-card.blue { border-left-color: var(--primary); }
.kpi-card.green { border-left-color: var(--success); }
.kpi-card.teal { border-left-color: var(--teal); }
.kpi-card.orange { border-left-color: var(--orange); }
.kpi-card.purple { border-left-color: var(--purple); }
.kpi-card .kpi-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.kpi-card.blue .kpi-icon { background: #e3f2fd; color: var(--primary); }
.kpi-card.green .kpi-icon { background: #e8f5e9; color: var(--success); }
.kpi-card.teal .kpi-icon { background: #e0f2f1; color: var(--teal); }
.kpi-card.orange .kpi-icon { background: #fbe9e7; color: var(--orange); }
.kpi-card.purple .kpi-icon { background: #f3e5f5; color: var(--purple); }

.kpi-info h3 {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 8px;
    font-weight: normal;
}

.kpi-value {
    font-size: 24px;
    font-weight: 600;
    color: var(--text);
}

/* ========== 面板 ========== */
.panel {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

/* ========== 表格 ========== */
.table-container {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.data-table th {
    text-align: left;
    padding: 15px 12px;
    color: var(--text-light);
    font-weight: 600;
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
}

.data-table td {
    padding: 15px 12px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.data-table tr:hover { background: #fafafa; }

.data-table .text-right { text-align: right; }

/* ========== 按钮 ========== */
.btn-primary {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.btn-primary:hover { background: var(--primary-dark); }

.btn-secondary {
    background: #fff;
    color: var(--text);
    border: 1px solid var(--border);
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.btn-secondary:hover { background: #f5f5f5; }

.btn-sm { padding: 6px 14px; font-size: 13px; }

.btn-icon {
    background: none;
    border: none;
    color: var(--primary);
    cursor: pointer;
    padding: 5px;
    font-size: 16px;
}

.btn-icon:hover { opacity: 0.7; }

.btn-remove {
    background: none;
    border: none;
    color: var(--danger);
    cursor: pointer;
    padding: 5px;
    font-size: 16px;
}

/* ========== 弹窗 ========== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal-content {
    background: var(--card-bg);
    border-radius: 12px;
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    padding: 20px 25px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 { font-size: 18px; }

.modal-header h3 i {
    color: var(--primary);
    margin-right: 10px;
}

.btn-close {
    background: none;
    border: none;
    font-size: 28px;
    color: #999;
    cursor: pointer;
}

.modal form { padding: 20px 25px; }

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    margin-top: 20px;
}

/* ========== 表单 ========== */
.form-row {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.form-group {
    flex: 1;
    display: flex;
    flex-direction: column;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--primary);
    outline: none;
}

.form-section {
    margin-top: 20px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
}

/* ========== 辅助类 ========== */
.hidden { display: none !important; }

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    background: #e0e0e0;
    color: #666;
}

.badge.success {
    background: #e8f5e9;
    color: var(--success);
}

.badge.warning {
    background: #fff3e0;
    color: var(--orange);
}

.badge.danger {
    background: #ffebee;
    color: var(--danger);
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .sidebar { width: 0; }
    .content-area { margin-left: 0; }
    .kpi-cards { grid-template-columns: 1fr; }
    .form-row { flex-direction: column; }
}

/* ========== 详情显示样式 ========== */
.form-value {
    padding: 8px 12px;
    background: #f5f5f5;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    min-height: 36px;
    display: flex;
    align-items: center;
    color: #333;
    font-weight: 500;
}

.panel {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

.panel h4 {
    font-size: 16px;
    color: #333;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}