/* ==================== CSS 变量 ==================== */
:root {
    /* 主色调 - 深蓝金融风格 */
    --primary-color: #0A2463;
    --primary-light: #1E3A8A;
    --primary-dark: #051233;
    --accent-color: #3B82F6;
    --accent-light: #60A5FA;
    
    /* 渐变色 */
    --gradient-primary: linear-gradient(135deg, #0A2463 0%, #1E3A8A 50%, #3B82F6 100%);
    --gradient-accent: linear-gradient(135deg, #3B82F6 0%, #60A5FA 100%);
    --gradient-dark: linear-gradient(180deg, #051233 0%, #0A2463 100%);
    
    /* 中性色 */
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --text-light: #9CA3AF;
    --bg-white: #FFFFFF;
    --bg-gray: #F9FAFB;
    --bg-light: #F3F4F6;
    --border-color: #E5E7EB;
    
    /* 功能色 */
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --error-color: #EF4444;
    --highlight-bg: #FEF3C7;
    --highlight-text: #92400E;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);
    
    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* 圆角 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* 过渡 */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ==================== 全局样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    color: var(--text-primary);
    background: var(--bg-white);
    line-height: 1.6;
    overflow-x: hidden;
}

body.article-page {
    background: var(--bg-gray);
    line-height: 1.8;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ==================== 顶部导航 ==================== */
.header {
    background: var(--gradient-dark);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    gap: var(--spacing-md);
}

.logo a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--bg-white);
    white-space: nowrap;
}

.logo-icon {
    font-size: 1.75rem;
}

.logo-text {
    font-family: 'Noto Serif SC', serif;
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-menu a {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
    white-space: nowrap;
}

.nav-menu a:hover,
.nav-menu a.active {
    background: rgba(255, 255, 255, 0.1);
    color: var(--bg-white);
}

.nav-contact {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--gradient-accent);
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    color: var(--bg-white);
    white-space: nowrap;
    box-shadow: var(--shadow-glow);
}

.nav-contact:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(59, 130, 246, 0.5);
}

.phone-icon {
    font-size: 1.125rem;
}

/* ==================== 面包屑导航 ==================== */
.breadcrumb {
    background: var(--bg-white);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    flex-wrap: wrap;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.breadcrumb-item a:hover {
    color: var(--accent-color);
}

/* ==================== 轮播图 ==================== */
.banner-slider {
    position: relative;
    height: 500px;
    overflow: hidden;
    background: var(--primary-dark);
}

.slider-container {
    position: relative;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.slide.active {
    opacity: 1;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(10, 36, 99, 0.85) 0%, rgba(59, 130, 246, 0.6) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide-content {
    text-align: center;
    color: var(--bg-white);
    padding: var(--spacing-lg);
    animation: slideUp 1s ease-out;
}

.slide-content h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.slide-content p {
    font-size: 1.375rem;
    font-weight: 300;
    letter-spacing: 2px;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slider-controls {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    transform: translateY(-50%);
}

.slider-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: var(--bg-white);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition-base);
    backdrop-filter: blur(5px);
}

.slider-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.slider-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: var(--transition-base);
}

.dot.active,
.dot:hover {
    background: var(--bg-white);
    transform: scale(1.3);
}

/* ==================== 页面标题 ==================== */
.page-header {
    background: var(--gradient-primary);
    padding: var(--spacing-2xl) 0;
    text-align: center;
    color: var(--bg-white);
    margin-bottom: var(--spacing-xl);
}

.page-header h1 {
    font-family: 'Noto Serif SC', serif;
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: var(--spacing-sm);
}

.page-header p {
    font-size: 1.125rem;
    opacity: 0.9;
}

/* ==================== 章节标题 ==================== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
}

.section-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-accent);
    border-radius: var(--radius-full);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-md);
}

/* ==================== 主要内容区 ==================== */
.main-content {
    padding: var(--spacing-xl) 0;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: var(--spacing-xl);
}

/* ==================== 优势模块 ==================== */
.advantages {
    background: var(--bg-gray);
    padding-bottom: var(--spacing-2xl);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.advantage-card {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    border: 2px solid transparent;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s ease forwards;
}

.advantage-card[data-delay="0"] { animation-delay: 0s; }
.advantage-card[data-delay="100"] { animation-delay: 0.1s; }
.advantage-card[data-delay="200"] { animation-delay: 0.2s; }
.advantage-card[data-delay="300"] { animation-delay: 0.3s; }
.advantage-card[data-delay="400"] { animation-delay: 0.4s; }
.advantage-card[data-delay="500"] { animation-delay: 0.5s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-light);
}

.advantage-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    display: inline-block;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.advantage-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.advantage-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ==================== 文章列表 ==================== */
.articles {
    padding-bottom: var(--spacing-2xl);
}

.articles-section {
    flex: 1;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.article-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
}

.article-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.article-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.article-tag {
    background: var(--gradient-accent);
    color: var(--bg-white);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
}

.article-date {
    color: var(--text-light);
    font-size: 0.875rem;
}

.article-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.article-title a {
    color: var(--primary-color);
}

.article-title a:hover {
    color: var(--accent-color);
}

.article-desc {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
    font-size: 0.9375rem;
}

.article-link {
    color: var(--accent-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    transition: var(--transition-base);
    font-size: 0.9375rem;
}

.article-link:hover {
    color: var(--primary-color);
    transform: translateX(5px);
}

.more-articles {
    text-align: center;
    margin-top: var(--spacing-xl);
}

.btn-more {
    display: inline-block;
    background: var(--gradient-primary);
    color: var(--bg-white);
    padding: 1rem 2.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1.125rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
}

.btn-more:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

/* ==================== 文章内容页 ==================== */
.article-content {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
}

.article-header {
    border-bottom: 2px solid var(--border-color);
    padding-bottom: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.article-header .article-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary-color);
    line-height: 1.4;
    margin-bottom: var(--spacing-md);
}

.article-header .article-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    font-size: 0.9375rem;
    color: var(--text-secondary);
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.article-body {
    font-size: 1.0625rem;
    line-height: 1.9;
    color: var(--text-primary);
}

.article-body h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.625rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: var(--spacing-xl) 0 var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--accent-light);
}

.article-body h3 {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--primary-light);
    margin: var(--spacing-lg) 0 var(--spacing-md);
}

.article-body p {
    margin-bottom: var(--spacing-md);
    text-align: justify;
}

.article-body ul,
.article-body ol {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-xl);
}

.article-body li {
    margin-bottom: var(--spacing-sm);
}

.article-body a {
    color: var(--accent-color);
    font-weight: 600;
    text-decoration: underline;
    text-decoration-color: rgba(59, 130, 246, 0.3);
    text-underline-offset: 3px;
}

.article-body a:hover {
    color: var(--primary-color);
    text-decoration-color: var(--primary-color);
}

/* 高亮文本 */
.highlight {
    background: var(--highlight-bg);
    color: var(--highlight-text);
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.text-primary-color {
    color: var(--primary-color);
    font-weight: 700;
}

.text-accent-color {
    color: var(--accent-color);
    font-weight: 700;
}

.text-success {
    color: var(--success-color);
    font-weight: 700;
}

.text-warning {
    color: var(--warning-color);
    font-weight: 700;
}

.text-error {
    color: var(--error-color);
    font-weight: 700;
}

/* 表格样式 */
.comparison-table {
    width: 100%;
    margin: var(--spacing-xl) 0;
    border-collapse: collapse;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.comparison-table thead {
    background: var(--gradient-primary);
    color: var(--bg-white);
}

.comparison-table th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 700;
    font-size: 1rem;
}

.comparison-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-base);
}

.comparison-table tbody tr:hover {
    background: var(--bg-light);
}

.comparison-table tbody tr:last-child {
    border-bottom: none;
}

.comparison-table td {
    padding: var(--spacing-md);
    font-size: 0.9375rem;
}

.comparison-table .highlight-cell {
    background: var(--highlight-bg);
    color: var(--highlight-text);
    font-weight: 700;
}

.comparison-table .success-cell {
    color: var(--success-color);
    font-weight: 600;
}

.comparison-table .error-cell {
    color: var(--error-color);
    font-weight: 600;
}

/* 提示框 */
.info-box {
    background: linear-gradient(135deg, #EBF8FF 0%, #E0F2FE 100%);
    border-left: 4px solid var(--accent-color);
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    border-radius: var(--radius-md);
}

.info-box-title {
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* 上一篇下一篇 */
.article-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 2px solid var(--border-color);
}

.nav-link {
    background: var(--bg-light);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    display: block;
}

.nav-link:hover {
    background: var(--gradient-accent);
    color: var(--bg-white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.nav-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.nav-link:hover .nav-label {
    color: rgba(255, 255, 255, 0.8);
}

.nav-title {
    font-weight: 600;
    font-size: 0.9375rem;
    line-height: 1.4;
}

.nav-link.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.nav-link.disabled:hover {
    background: var(--bg-light);
    color: inherit;
    transform: none;
    box-shadow: none;
}

/* ==================== 联系横幅 ==================== */
.contact-banner {
    background: var(--gradient-primary);
    padding: var(--spacing-2xl) 0;
    margin: var(--spacing-2xl) 0;
}

.contact-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

.contact-left h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 2rem;
    font-weight: 900;
    color: var(--bg-white);
    margin-bottom: 0.5rem;
}

.contact-left p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.125rem;
}

.btn-contact {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--bg-white);
    color: var(--primary-color);
    padding: 1rem 2rem;
    border-radius: var(--radius-full);
    font-size: 1.25rem;
    font-weight: 700;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
}

.btn-contact:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.btn-icon {
    font-size: 1.5rem;
}

/* ==================== 侧边栏 ==================== */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.sidebar-widget {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.widget-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--accent-color);
}

/* 搜索模块 */
.search-widget input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    outline: none;
    transition: var(--transition-base);
}

.search-widget input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.search-widget button {
    width: 100%;
    padding: 0.75rem;
    margin-top: var(--spacing-sm);
    background: var(--gradient-accent);
    color: var(--bg-white);
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
}

.search-widget button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* 热门推荐 */
.hot-list {
    list-style: none;
}

.hot-item {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
}

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

.hot-item a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-primary);
}

.hot-item a:hover {
    color: var(--accent-color);
}

.hot-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.hot-item:nth-child(1) .hot-number,
.hot-item:nth-child(2) .hot-number,
.hot-item:nth-child(3) .hot-number {
    background: var(--gradient-accent);
    color: var(--bg-white);
}

.hot-title {
    flex: 1;
    font-size: 0.9375rem;
    line-height: 1.4;
}

/* 相关搜索 */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tag-item {
    padding: 0.5rem 1rem;
    background: var(--bg-light);
    color: var(--text-secondary);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    transition: var(--transition-base);
    cursor: pointer;
}

.tag-item:hover {
    background: var(--gradient-accent);
    color: var(--bg-white);
    transform: translateY(-2px);
}

/* 订阅微信/联系卡片 */
.subscribe-widget,
.contact-card {
    text-align: center;
    background: linear-gradient(135deg, #0A2463 0%, #3B82F6 100%);
    color: var(--bg-white);
}

.subscribe-widget .widget-title,
.contact-card .widget-title {
    color: var(--bg-white);
    border-color: rgba(255, 255, 255, 0.3);
}

.qr-code,
.contact-qr {
    margin: var(--spacing-md) 0;
}

.qr-code img,
.contact-qr img {
    width: 180px;
    height: 180px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    border: 3px solid rgba(255, 255, 255, 0.2);
    cursor: pointer;
}

.subscribe-text,
.contact-text {
    font-size: 0.9375rem;
    opacity: 0.9;
    line-height: 1.6;
}

.contact-phone {
    font-size: 1.5rem;
    font-weight: 700;
    margin: var(--spacing-md) 0;
}

.contact-phone a {
    color: var(--bg-white);
}

/* ==================== 底部 ==================== */
.footer {
    background: var(--gradient-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-top {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-section h3 {
    color: var(--bg-white);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.footer-section p {
    line-height: 1.8;
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--accent-light);
}

.footer-section a:hover {
    color: var(--bg-white);
}

.footer-qrcode {
    text-align: center;
}

.footer-qrcode img {
    width: 150px;
    height: 150px;
    margin: 0 auto var(--spacing-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-base);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.footer-qrcode img:hover {
    transform: scale(1.05);
    border-color: var(--accent-light);
}

.footer-links {
    margin-bottom: var(--spacing-xl);
}

.footer-links h3 {
    color: var(--bg-white);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.city-links {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--spacing-sm);
}

.city-links a {
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
    color: rgba(255, 255, 255, 0.7);
}

.city-links a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--bg-white);
}

.footer-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.footer-content h3 {
    color: var(--bg-white);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.footer-content p {
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.footer-content a {
    color: var(--accent-light);
}

.footer-content a:hover {
    color: var(--bg-white);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-wrap: wrap;
    gap: var(--spacing-md);
    text-align: center;
    margin-top: var(--spacing-lg);
}

.footer-bottom-left p {
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

.search-box {
    display: flex;
    gap: 0.5rem;
}

.search-box input {
    padding: 0.5rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.1);
    color: var(--bg-white);
    outline: none;
    transition: var(--transition-base);
    min-width: 200px;
}

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

.search-box input:focus {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--accent-light);
}

.search-box button {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--radius-full);
    background: var(--gradient-accent);
    color: var(--bg-white);
    cursor: pointer;
    transition: var(--transition-base);
}

.search-box button:hover {
    transform: scale(1.05);
}

/* ==================== 侧边悬浮客服 ==================== */
.sidebar-service {
    position: fixed;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999;
    animation: floatUpDown 3s ease-in-out infinite;
}

@keyframes floatUpDown {
    0%, 100% { transform: translateY(-50%); }
    50% { transform: translateY(calc(-50% - 10px)); }
}

.service-item {
    background: var(--gradient-accent);
    color: var(--bg-white);
    padding: 1rem;
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
    text-align: center;
    min-width: 70px;
}

.service-item:hover {
    padding-right: 1.5rem;
}

.service-icon {
    font-size: 1.75rem;
    margin-bottom: 0.25rem;
}

.service-text {
    font-size: 0.875rem;
    font-weight: 600;
}

.service-qr {
    position: absolute;
    left: 80px;
    top: 0;
    background: var(--bg-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    display: none;
}

.service-qr.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.service-qr img {
    width: 150px;
    height: 150px;
    cursor: pointer;
}

.service-qr p {
    text-align: center;
    margin-top: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ==================== 右侧悬浮 ==================== */
.float-contact {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 998;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.float-item {
    background: var(--bg-white);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    transition: var(--transition-base);
}

.float-item:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

.float-item.phone {
    background: var(--gradient-accent);
}

.float-item.phone a {
    color: var(--bg-white);
    font-size: 1.5rem;
}

.qr-thumb {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

/* ==================== 二维码弹窗 ==================== */
.qr-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    animation: modalFadeIn 0.3s ease;
}

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

@keyframes modalFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.qr-modal-content {
    position: relative;
    animation: modalZoomIn 0.3s ease;
}

@keyframes modalZoomIn {
    from {
        transform: scale(0.8);
    }
    to {
        transform: scale(1);
    }
}

.qr-modal-content img {
    max-width: 400px;
    max-height: 80vh;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

/* ==================== 手机端底部固定栏 ==================== */
.mobile-bottom-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-white);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--border-color);
}

.mobile-bar-item {
    background: var(--bg-white);
    padding: 0.75rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-base);
}

.mobile-bar-item:active {
    background: var(--bg-gray);
}

.mobile-bar-item img {
    width: 40px;
    height: 40px;
    margin: 0 auto 0.25rem;
    border-radius: 50%;
}

.mobile-bar-item span {
    display: block;
    font-size: 0.875rem;
    color: var(--text-primary);
    font-weight: 500;
}

.mobile-bar-item a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1024px) {
    .content-wrapper {
        grid-template-columns: 1fr;
    }

    .sidebar {
        order: -1;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }

    .subscribe-widget,
    .contact-card {
        grid-column: 1 / -1;
    }

    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav {
        height: auto;
        padding: 0.75rem 0;
    }

    .logo a {
        font-size: 1rem;
    }

    .logo-icon {
        font-size: 1.5rem;
    }

    .nav-menu {
        gap: 0.5rem;
    }

    .nav-menu a {
        padding: 0.375rem 0.75rem;
        font-size: 0.875rem;
    }

    .nav-contact {
        display: none;
    }

    .banner-slider {
        height: 300px;
    }

    .slide-content h2 {
        font-size: 1.75rem;
    }

    .slide-content p {
        font-size: 1rem;
    }

    .slider-btn {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }

    .section-title {
        font-size: 1.875rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }

    .page-header h1 {
        font-size: 1.875rem;
    }

    .advantages-grid,
    .articles-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .advantage-card {
        padding: var(--spacing-lg);
    }

    .contact-content {
        flex-direction: column;
        text-align: center;
    }

    .contact-left h2 {
        font-size: 1.5rem;
    }

    .contact-left p {
        font-size: 1rem;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .city-links {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .search-box {
        width: 100%;
    }

    .search-box input {
        flex: 1;
        min-width: 0;
    }

    .float-contact {
        display: none;
    }

    .sidebar-service {
        display: none;
    }

    .mobile-bottom-bar {
        display: grid;
        padding-bottom: env(safe-area-inset-bottom);
    }

    .article-content {
        padding: var(--spacing-lg);
    }

    .article-header .article-title {
        font-size: 1.5rem;
    }

    .article-body {
        font-size: 1rem;
    }

    .article-body h2 {
        font-size: 1.375rem;
    }

    .article-body h3 {
        font-size: 1.125rem;
    }

    .article-navigation {
        grid-template-columns: 1fr;
    }

    .sidebar {
        grid-template-columns: 1fr;
    }

    .comparison-table {
        font-size: 0.875rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .logo-text {
        font-size: 0.875rem;
    }

    .nav-menu a {
        font-size: 0.8125rem;
        padding: 0.25rem 0.5rem;
    }

    .slide-content h2 {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .page-header h1 {
        font-size: 1.5rem;
    }

    .page-header p {
        font-size: 1rem;
    }

    .city-links {
        grid-template-columns: 1fr;
    }

    .article-header .article-title {
        font-size: 1.25rem;
    }

    .breadcrumb-list {
        font-size: 0.8125rem;
    }
}