/* 智投A股 - 主样式 */

/* ========== CSS 变量 ========== */
:root {
    --primary-color: #e74c3c;
    --primary-dark: #c0392b;
    --secondary-color: #3498db;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --up-color: #e74c3c;
    --down-color: #27ae60;
    
    --bg-color: #f5f7fa;
    --card-bg: #ffffff;
    --border-color: #e8e8e8;
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --text-light: #bdc3c7;
    
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    --transition: all 0.3s ease;
}

/* ========== 基础样式 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
    transition: var(--transition);
}

input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========== 头部导航 ========== */
.header {
    background: linear-gradient(135deg, #1a1f3c 0%, #2d3a6d 100%);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 40px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-size: 24px;
    font-weight: 700;
}

.logo i {
    font-size: 28px;
    color: var(--primary-color);
}

.main-nav {
    display: flex;
    gap: 8px;
}

.nav-item {
    color: rgba(255,255,255,0.8);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 15px;
    position: relative;
}

.nav-item:hover,
.nav-item.active {
    color: #fff;
    background: rgba(255,255,255,0.1);
}

.nav-item.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

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

.search-box {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,0.1);
    border-radius: 24px;
    padding: 8px 16px;
    width: 240px;
    transition: var(--transition);
}

.search-box:focus-within {
    background: rgba(255,255,255,0.15);
    box-shadow: 0 0 0 2px rgba(255,255,255,0.1);
}

.search-box i {
    color: rgba(255,255,255,0.6);
    margin-right: 10px;
}

.search-box input {
    background: none;
    border: none;
    color: #fff;
    width: 100%;
    outline: none;
}

.search-box input::placeholder {
    color: rgba(255,255,255,0.5);
}

.user-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-login, .btn-register {
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

.btn-login {
    color: #fff;
    border: 1px solid rgba(255,255,255,0.3);
}

.btn-login:hover {
    background: rgba(255,255,255,0.1);
}

.btn-register {
    background: var(--primary-color);
    color: #fff;
}

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

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 6px 12px;
    border-radius: var(--radius-md);
    position: relative;
}

.user-info:hover {
    background: rgba(255,255,255,0.1);
}

.user-name {
    color: #fff;
    font-size: 14px;
}

.member-badge {
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 500;
}

.member-badge.level-1 {
    background: #95a5a6;
    color: #fff;
}

.member-badge.level-2 {
    background: #3498db;
    color: #fff;
}

.member-badge.level-3 {
    background: #9b59b6;
    color: #fff;
}

.member-badge.level-4 {
    background: linear-gradient(135deg, #f39c12, #e74c3c);
    color: #fff;
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--card-bg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 180px;
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
}

.user-info:hover .user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    color: var(--text-primary);
    font-size: 14px;
}

.user-dropdown a:hover {
    background: var(--bg-color);
}

.user-dropdown a i {
    color: var(--text-secondary);
}

/* ========== 市场概览 ========== */
.market-overview {
    background: linear-gradient(135deg, #1a1f3c 0%, #2d3a6d 100%);
    padding: 30px 0;
}

.index-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}

.index-card {
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid rgba(255,255,255,0.1);
    transition: var(--transition);
}

.index-card:hover {
    transform: translateY(-2px);
    background: rgba(255,255,255,0.12);
}

.index-info h3 {
    color: rgba(255,255,255,0.7);
    font-size: 14px;
    font-weight: 400;
    margin-bottom: 8px;
}

.index-value {
    font-size: 32px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 4px;
}

.index-change {
    display: flex;
    gap: 16px;
}

.index-change .change {
    font-size: 16px;
    font-weight: 500;
}

.index-change .change.up {
    color: var(--up-color);
}

.index-change .change.down {
    color: var(--down-color);
}

.index-chart {
    width: 120px;
    height: 60px;
}

.market-breadth {
    display: flex;
    justify-content: center;
    gap: 40px;
    padding: 20px;
    background: rgba(255,255,255,0.05);
    border-radius: var(--radius-lg);
}

.breadth-item {
    text-align: center;
}

.breadth-item .label {
    color: rgba(255,255,255,0.6);
    font-size: 13px;
    margin-bottom: 4px;
}

.breadth-item .value {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
}

.breadth-item .value.up {
    color: var(--up-color);
}

.breadth-item .value.down {
    color: var(--down-color);
}

/* ========== 区块通用样式 ========== */
section {
    padding: 40px 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.section-header.centered {
    flex-direction: column;
    text-align: center;
}

.section-header.centered p {
    color: var(--text-secondary);
    margin-top: 8px;
}

.section-header h2 {
    font-size: 24px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-header h2 i {
    color: var(--primary-color);
}

.view-all {
    color: var(--secondary-color);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.view-all:hover {
    color: var(--primary-color);
}

/* ========== 标签切换 ========== */
.tabs, .flow-tabs {
    display: flex;
    gap: 4px;
    background: var(--bg-color);
    padding: 4px;
    border-radius: var(--radius-md);
}

.tab, .flow-tab {
    padding: 8px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-secondary);
}

.tab:hover, .flow-tab:hover {
    color: var(--text-primary);
}

.tab.active, .flow-tab.active {
    background: var(--card-bg);
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

/* ========== 板块列表 ========== */
.sector-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.sector-item {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
}

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

.sector-name {
    font-size: 15px;
    font-weight: 500;
}

.sector-change {
    font-size: 18px;
    font-weight: 600;
}

.sector-change.up {
    color: var(--up-color);
}

.sector-change.down {
    color: var(--down-color);
}

/* ========== 数据表格 ========== */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

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

.data-table th {
    background: var(--bg-color);
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table tr:hover td {
    background: rgba(52, 152, 219, 0.05);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table .up {
    color: var(--up-color);
    font-weight: 600;
}

.data-table .down {
    color: var(--down-color);
    font-weight: 600;
}

.flow-table {
    min-width: 900px;
}

.flow-content {
    overflow-x: auto;
}

.load-more {
    text-align: center;
    padding: 20px;
}

.load-more button {
    background: var(--secondary-color);
    color: #fff;
    padding: 10px 40px;
    border-radius: var(--radius-md);
    font-size: 14px;
}

.load-more button:hover {
    background: #2980b9;
}

/* ========== 策略卡片 ========== */
.strategy-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

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

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

.strategy-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: var(--transition);
}

.strategy-card:hover::before {
    opacity: 1;
}

.strategy-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.strategy-icon i {
    font-size: 28px;
    color: #fff;
}

.strategy-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.strategy-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.5;
}

.strategy-tag {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 10px;
    background: #ecf0f1;
    border-radius: 12px;
    font-size: 12px;
    color: var(--text-secondary);
}

.strategy-tag.vip {
    background: linear-gradient(135deg, #f39c12, #e74c3c);
    color: #fff;
}

/* ========== 会员服务 ========== */
.member-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 60px 0;
}

.member-section .section-header h2,
.member-section .section-header p {
    color: #fff;
}

.member-section .section-header h2 i {
    color: #f39c12;
}

.member-plans {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.plan-card {
    background: rgba(255,255,255,0.95);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    position: relative;
    transition: var(--transition);
}

.plan-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.plan-card.recommended {
    border: 3px solid var(--primary-color);
    transform: scale(1.05);
}

.plan-card.recommended:hover {
    transform: scale(1.05) translateY(-8px);
}

.recommend-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: #fff;
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.plan-card h3 {
    font-size: 20px;
    margin-bottom: 16px;
}

.plan-card .price {
    margin-bottom: 24px;
}

.plan-card .amount {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
}

.plan-card .period {
    color: var(--text-secondary);
    font-size: 14px;
}

.plan-card .features {
    list-style: none;
    text-align: left;
    margin-bottom: 24px;
}

.plan-card .features li {
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.plan-card .features li i {
    color: var(--success-color);
}

.btn-buy {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
    padding: 14px;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 600;
}

.btn-buy:hover {
    opacity: 0.9;
}

/* ========== 页脚 ========== */
.footer {
    background: #1a1f3c;
    padding: 40px 0;
    margin-top: 40px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 20px;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    font-size: 14px;
}

.footer-links a:hover {
    color: #fff;
}

.copyright {
    text-align: center;
    color: rgba(255,255,255,0.5);
    font-size: 13px;
}

/* ========== 弹窗 ========== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.6);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 32px;
    width: 400px;
    max-width: 90%;
    position: relative;
    animation: modalIn 0.3s ease;
}

.modal-content.large {
    width: 900px;
    max-height: 80vh;
    overflow-y: auto;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    font-size: 24px;
    color: var(--text-secondary);
    background: none;
    border: none;
    cursor: pointer;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-content h2 {
    text-align: center;
    margin-bottom: 24px;
}

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

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 15px;
    transition: var(--transition);
}

.form-group input:focus {
    border-color: var(--secondary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.btn-submit {
    width: 100%;
    background: var(--primary-color);
    color: #fff;
    padding: 14px;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 600;
    margin-top: 8px;
}

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

.form-footer {
    text-align: center;
    margin-top: 16px;
    color: var(--text-secondary);
    font-size: 14px;
}

.form-footer a {
    color: var(--secondary-color);
}

/* ========== Toast 消息 ========== */
.toast-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 3000;
}

.toast {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 16px 24px;
    margin-bottom: 10px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    animation: slideIn 0.3s ease;
    min-width: 300px;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast.success {
    border-left: 4px solid var(--success-color);
}

.toast.error {
    border-left: 4px solid var(--danger-color);
}

.toast.info {
    border-left: 4px solid var(--secondary-color);
}

.toast i {
    font-size: 20px;
}

.toast.success i {
    color: var(--success-color);
}

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

.toast.info i {
    color: var(--secondary-color);
}

/* ========== 结果统计 ========== */
.result-stats {
    background: var(--bg-color);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 16px;
}

/* ========== 响应式 ========== */
@media (max-width: 1200px) {
    .strategy-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .member-plans {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .plan-card.recommended {
        transform: none;
    }
}

@media (max-width: 768px) {
    .header .container {
        flex-wrap: wrap;
        height: auto;
        padding: 12px 20px;
    }
    
    .header-left {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .main-nav {
        gap: 4px;
    }
    
    .nav-item {
        padding: 6px 12px;
        font-size: 13px;
    }
    
    .header-right {
        width: 100%;
        margin-top: 12px;
    }
    
    .search-box {
        flex: 1;
    }
    
    .index-cards {
        grid-template-columns: 1fr;
    }
    
    .sector-list {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .strategy-cards {
        grid-template-columns: 1fr;
    }
    
    .member-plans {
        grid-template-columns: 1fr;
    }
    
    .market-breadth {
        flex-wrap: wrap;
        gap: 20px;
    }
}