/* 全局变量定义 */
:root {
    /* 主色调 */
    --primary: #2A9D8F;
    --primary-light: rgba(42, 157, 143, 0.1);
    --primary-dark: #1f756b;

    /* 辅助色 */
    --secondary: #264653;
    --accent: #E9C46A;

    /* 文本颜色 */
    --text-primary: #2C3E50;
    --text-secondary: #5D6D7E;
    --text-light: #8395A7;

    /* 背景色 */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8FAFB;
    --bg-accent: #FFFAF4;

    /* 功能色 */
    --success: #27AE60;
    --warning: #F39C12;
    --error: #E74C3C;

    /* 阴影 */
    --shadow-sm: 0 2px 4px 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);

    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* 动画 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* 间距 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;

    /* 容器宽度 */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;

    /* 导航栏高度 */
    --navbar-height: 80px;

    /* 定义统一的背景颜色 */
    --background-color: #F0F0F0;
}

/* 重置样式 */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 基础样式 */
html {
    font-size: 16px;
    scroll-snap-type: y mandatory;
    scroll-behavior: smooth;
    height: 100%;
    overflow-y: auto;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', -apple-system, system-ui, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    padding-top: var(--navbar-height);
    height: 100%;
    background-color: var(--background-color);
}

/* 通用容器 */
.container {
    width: 100%;
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    z-index: 9999;
}

.navbar-container {
    max-width: 1280px;
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
}

/* Logo */
.logo {
    position: absolute;
    left: 24px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    color: var(--primary);
    text-decoration: none;
}

.logo i {
    margin-right: 8px;
}

/* 导航菜单 */
.nav-links {
    position: absolute;
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    gap: 48px;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
}

/* 移动端样式 */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .navbar {
        height: 60px;
    }

    .navbar-container {
        height: 60px;
    }

    .menu-toggle {
        position: absolute;
        right: 24px;
        top: 50%;
        transform: translateY(-50%);
        display: block;
        background: none;
        border: none;
        font-size: 24px;
        color: var(--text-primary);
        cursor: pointer;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 180px;
        left: 0;
        width: 100%;
        background: var(--bg-primary);
        padding: var(--spacing-md);
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
        box-shadow: var(--shadow-md);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-link {
        height: 44px;
        width: 100%;
        line-height: 44px;
        padding: 0 var(--spacing-lg);
    }

    .search-box {
        width: 100%;
    }

    .suggestions-header {
        flex-direction: column;
        align-items: stretch;
    }

    .category-tabs {
        justify-content: center;
    }

    section {
        min-height: 100vh;
        height: auto;
        padding: var(--spacing-lg) 0;
    }

    .suggestions-container {
        max-height: calc(100vh - 300px);
    }

    .contact-section {
        min-height: calc(100vh - 300px);
    }

    .footer {
        height: auto;
        padding: var(--spacing-lg) 0;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-lg);
    }

    .footer-logo {
        justify-content: center;
    }

    .footer-links {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: center;
    }

    .footer-social {
        justify-content: center;
    }
}

/* 产品介绍部分 */
.product-section {
    background-color: var(--bg-secondary);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.feature-card {
    background-color: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background-color: var(--primary-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

/* 灵犀创享阁部分 */
.lingxi-section {
    background-color: var(--bg-accent);
    min-height: 120vh;
    display: flex;
    align-items: flex-start;
}

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

.lingxi-title {
    color: var(--primary);
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.lingxi-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
}

.suggestions-container {
    padding-top: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
}

.suggestions-container::-webkit-scrollbar {
    width: 6px;
}

.suggestions-container::-webkit-scrollbar-track {
    background: transparent;
}

.suggestions-container::-webkit-scrollbar-thumb {
    background-color: var(--primary-light);
    border-radius: 3px;
}

.suggestions-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.search-box {
    position: relative;
    width: 300px;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 10px;
    color: var(--text-light);
}

.search-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--primary-light);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    transition: var(--transition-normal);
    background-color: var(--bg-primary);
}

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

.category-tabs {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.category-tab {
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--bg-primary);
    border: 2px solid var(--primary-light);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-normal);
}

.category-tab:hover,
.category-tab.active {
    background-color: var(--primary);
    border-color: var(--primary);
    color: white;
}

.suggestions-grid-container {
    padding-top: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    max-height: calc(100vh - 400px);
}

.suggestions-grid-container.scrollable {
    overflow-y: auto;
}

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

.suggestion-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--primary-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: var(--transition-normal);
}

.suggestion-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.user-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.user-details {
    flex: 1;
}

.username {
    font-weight: bold;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.platform {
    font-size: 0.9rem;
    color: var(--text-light);
}

.suggestion-content {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.suggestion-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-light);
}

/* 关于我们部分 */
.about-section {
    background-color: var(--bg-secondary);
    min-height: 100vh;
    display: flex;
    align-items: flex-start;
}

.about-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.about-card {
    background-color: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

/* 新增头像样式 */
.about-avatar {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.avatar-image {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
}

/* 联系我们部分 */
.contact-container {
    max-width: var(--container-md);
    margin: 0 auto;
}

.contact-form {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--primary-light);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: var(--transition-normal);
}

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

.submit-button {
    background-color: var(--primary);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-normal);
}

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

/* 响应式设计 */
@media (max-width: 1024px) {

    .feature-grid,
    .about-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .feature-grid,
    .about-grid {
        grid-template-columns: 1fr;
    }

    .category-tab {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.9rem;
    }
}

/* 修复锚点定位问题 */
section {
    scroll-margin-top: var(--navbar-height);
    scroll-snap-align: start;
    scroll-snap-stop: always;
    padding: var(--spacing-lg) 0;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* 页脚样式 */
.footer {
    background-color: var(--secondary);
    color: var(--bg-primary);
    height: 240px;
    display: flex;
    align-items: center;
    scroll-snap-align: end;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    width: 100%;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--bg-primary);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: var(--bg-primary);
    text-decoration: none;
    opacity: 0.8;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    opacity: 1;
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social a {
    color: var(--bg-primary);
    font-size: 1.2rem;
    opacity: 0.8;
    transition: var(--transition-fast);
}

.footer-social a:hover {
    opacity: 1;
}

.footer-copyright {
    grid-column: 1 / -1;
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: var(--spacing-md);
}

/* 联系我们部分 - 简化版 */
.contact-info {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--primary-light);
}

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

.contact-icon {
    color: var(--primary);
    font-size: 1.5rem;
    width: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-details {
    flex: 1;
}

.contact-label {
    font-weight: bold;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.contact-value {
    color: var(--text-secondary);
}

/* 通用标题样式 */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: 2.5rem;
    color: var(--secondary);
    margin-bottom: var(--spacing-md);
    position: relative;
    padding-bottom: var(--spacing-md);
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--primary);
    border-radius: 2px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.2rem;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    background-color: var(--accent);
    color: var(--secondary);
    font-size: clamp(1rem, 1.5vw, 1.1rem);
    font-weight: 600;
    padding: 0.875rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    transition: all var(--transition-normal);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    background-color: #f0cd7a;
}

.load-more {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-lg);
}

.load-more-btn {
    background-color: var(--accent);
    color: var(--secondary);
    border: none;
    padding: 0.875rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    transition: all var(--transition-normal);
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.load-more-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    background-color: #f0cd7a;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .banner-section {
        min-height: 70vh;
    }

    .banner-content {
        padding: 0 var(--spacing-md);
        max-width: 100%;
    }

    .banner-title {
        margin-bottom: var(--spacing-sm);
    }

    .banner-description {
        margin-bottom: var(--spacing-md);
        padding: 0 var(--spacing-sm);
    }

    .cta-button {
        padding: 0.75rem 2rem;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .banner-section {
        min-height: 60vh;
    }

    .banner-content {
        padding: 0 var(--spacing-sm);
    }

    .banner-description {
        font-size: 0.95rem;
        margin-bottom: var(--spacing-sm);
    }

    .cta-button {
        padding: 0.7rem 1.8rem;
        font-size: 0.95rem;
    }
}

/* 修复移动端菜单问题 */
@media (min-width: 769px) {
    .nav-links {
        display: flex !important;
        opacity: 1 !important;
        visibility: visible !important;
        padding: 0 !important;
        background: none !important;
        box-shadow: none !important;
        flex-direction: row !important;
    }
}

@media (max-width: 768px) {
    .footer {
        height: auto;
        padding: var(--spacing-lg) 0;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-lg);
    }

    .footer-logo {
        justify-content: center;
    }

    .footer-links {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: center;
    }

    .footer-social {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .contact-section {
        min-height: calc(100vh - var(--navbar-height) - 300px);
    }
}

/* 优化滚动效果 */
.suggestions-container {
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
}

/* 确保内容居中 */
.section-header {
    margin-bottom: var(--spacing-lg);
}

.container {
    width: 100%;
    max-width: var(--container-xl);
    margin: 0 auto;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* 移动端样式调整 */
@media (max-width: 768px) {
    .nav-links {
        justify-content: flex-start;
        padding-left: var(--spacing-lg);
    }

    .nav-link {
        text-align: left;
    }
}