/* ========================================
   三哥发外链网 - 全局样式文件
   现代简约商务风格
======================================== */

/* CSS Reset & 基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary-color: #64748b;
    --accent-color: #0ea5e9;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
    color: var(--primary-color);
}

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

ul, ol {
    list-style: none;
}

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

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========================================
   导航栏样式
======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo-img {
    height: 40px;
    width: auto;
}

.nav {
    display: flex;
    align-items: center;
    gap: 5px;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: block;
    padding: 10px 18px;
    color: var(--text-primary);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-item.active .nav-link {
    color: var(--primary-color);
    background-color: rgba(37, 99, 235, 0.08);
}

.nav-btn {
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: #fff !important;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.nav-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    margin: 3px 0;
    transition: all var(--transition-fast);
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* 移动端导航 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: #fff;
        flex-direction: column;
        padding: 20px;
        gap: 5px;
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }

    .nav.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        padding: 15px 20px;
        width: 100%;
    }

    .nav-btn {
        width: 100%;
        text-align: center;
        margin-top: 10px;
    }
}

/* ========================================
   Banner 区域
======================================== */
.banner {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    overflow: hidden;
    margin-top: 70px;
}

.banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAECAYAAACp8Z5+AAAAIklEQVQIW2NkQAKrVq36zwjjgzjwqkJYEGFsQAwA5+wEYf3q8lMAAAAASUVORK5CYII=');
    opacity: 0.1;
}

.banner-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: #fff;
    padding: 40px 20px;
    max-width: 800px;
}

.banner-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
    animation: fadeInUp 0.8s ease-out;
}

.banner-subtitle {
    font-size: 1.25rem;
    margin-bottom: 30px;
    opacity: 0.95;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.banner-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--bg-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background-color: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .banner {
        min-height: 500px;
    }

    .banner-title {
        font-size: 2rem;
    }

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

    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
}

/* ========================================
   核心优势板块
======================================== */
.features {
    padding: 80px 0;
    background-color: var(--bg-primary);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background-color: var(--bg-secondary);
    padding: 40px 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-normal);
    border: 1px solid var(--border-color);
}

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

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #fff;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-desc {
    color: var(--text-secondary);
    line-height: 1.7;
}

@media (max-width: 992px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   快速入口
======================================== */
.quick-access {
    padding: 80px 0;
    background-color: var(--bg-secondary);
}

.access-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.access-card {
    background-color: var(--bg-primary);
    padding: 30px 25px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-normal);
    border: 1px solid var(--border-color);
    cursor: pointer;
}

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

.access-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 15px;
    background-color: rgba(37, 99, 235, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.access-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.access-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

@media (max-width: 992px) {
    .access-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .access-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   资讯列表
======================================== */
.news-section {
    padding: 80px 0;
    background-color: var(--bg-primary);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    border: 1px solid var(--border-color);
}

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

.news-thumb {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background-color: var(--bg-tertiary);
}

.news-content {
    padding: 25px;
}

.news-category {
    display: inline-block;
    padding: 5px 12px;
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
}

.news-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.5;
    color: var(--text-primary);
}

.news-card:hover .news-title {
    color: var(--primary-color);
}

.news-excerpt {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 15px;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
    font-size: 0.85rem;
    color: var(--text-light);
}

.news-more {
    text-align: center;
    margin-top: 50px;
}

@media (max-width: 992px) {
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .news-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   页脚
======================================== */
.footer {
    background-color: var(--text-primary);
    color: #fff;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-contact {
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact p {
    margin-bottom: 10px;
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #fff;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.5);
}

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

@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   通用页面样式
======================================== */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 120px 0 60px;
    text-align: center;
    color: #fff;
    margin-top: 70px;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.page-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.page-content {
    padding: 80px 0;
    background-color: var(--bg-primary);
}

/* ========================================
   动画效果
======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   新闻列表页
======================================== */
.news-list-page {
    padding: 80px 0;
    min-height: calc(100vh - 400px);
}

.news-list-header {
    margin-bottom: 40px;
}

.news-list-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

.news-main {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.news-list-item {
    display: flex;
    gap: 25px;
    background-color: var(--bg-secondary);
    padding: 25px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.news-list-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.news-list-thumb {
    width: 220px;
    height: 150px;
    object-fit: cover;
    border-radius: var(--radius-md);
    background-color: var(--bg-tertiary);
    flex-shrink: 0;
}

.news-list-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-list-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.4;
    color: var(--text-primary);
}

.news-list-item:hover .news-list-title {
    color: var(--primary-color);
}

.news-list-excerpt {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 15px;
    flex: 1;
}

.news-list-meta {
    display: flex;
    gap: 20px;
    font-size: 0.85rem;
    color: var(--text-light);
}

/* 侧边栏 */
.news-sidebar {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.sidebar-widget {
    background-color: var(--bg-secondary);
    padding: 25px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.widget-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-color);
}

.hot-news-list li {
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.hot-news-list li:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.hot-news-link {
    display: block;
    font-size: 0.95rem;
    color: var(--text-primary);
    line-height: 1.5;
    transition: color var(--transition-fast);
}

.hot-news-link:hover {
    color: var(--primary-color);
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-item {
    display: inline-block;
    padding: 6px 14px;
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.tag-item:hover {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 50px;
}

.page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all var(--transition-fast);
    border: 1px solid var(--border-color);
}

.page-link:hover,
.page-link.active {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

@media (max-width: 768px) {
    .news-list-grid {
        grid-template-columns: 1fr;
    }

    .news-list-item {
        flex-direction: column;
    }

    .news-list-thumb {
        width: 100%;
        height: 180px;
    }
}

/* ========================================
   新闻详情页
======================================== */
.article-page {
    padding: 80px 0;
    min-height: calc(100vh - 400px);
}

.article-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

.article-main {
    background-color: var(--bg-primary);
    padding: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.article-header {
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.article-category {
    display: inline-block;
    padding: 6px 14px;
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    margin-bottom: 15px;
}

.article-headline {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.article-meta {
    display: flex;
    gap: 25px;
    color: var(--text-light);
    font-size: 0.9rem;
}

.article-cover {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    margin-bottom: 30px;
    background-color: var(--bg-tertiary);
}

.article-body {
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--text-secondary);
}

.article-body p {
    margin-bottom: 20px;
}

.article-body h2 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin: 35px 0 20px;
    font-weight: 600;
}

.article-body h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin: 30px 0 15px;
    font-weight: 600;
}

.article-body ul,
.article-body ol {
    margin: 20px 0;
    padding-left: 25px;
}

.article-body li {
    margin-bottom: 10px;
}

.article-tags {
    margin-top: 40px;
    padding-top: 25px;
    border-top: 1px solid var(--border-color);
}

.tags-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-right: 10px;
}

.article-share {
    margin-top: 30px;
    padding-top: 25px;
    border-top: 1px solid var(--border-color);
}

.share-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-right: 15px;
}

.share-btns {
    display: inline-flex;
    gap: 10px;
}

.share-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

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

@media (max-width: 768px) {
    .article-container {
        grid-template-columns: 1fr;
    }

    .article-main {
        padding: 25px;
    }

    .article-headline {
        font-size: 1.5rem;
    }

    .article-cover {
        height: 250px;
    }
}

/* ========================================
   关于我们页
======================================== */
.about-intro {
    padding: 80px 0;
    background-color: var(--bg-primary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
}

.about-text h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.about-text p {
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 20px;
}

.values-section {
    padding: 80px 0;
    background-color: var(--bg-secondary);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.value-card {
    background-color: var(--bg-primary);
    padding: 35px 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

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

.value-icon {
    width: 65px;
    height: 65px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: #fff;
}

.value-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.value-desc {
    color: var(--text-secondary);
    line-height: 1.7;
}

.team-section {
    padding: 80px 0;
    background-color: var(--bg-primary);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.team-card {
    text-align: center;
}

.team-avatar {
    width: 150px;
    height: 150px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--border-color);
    transition: border-color var(--transition-normal);
}

.team-card:hover .team-avatar {
    border-color: var(--primary-color);
}

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

.team-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.team-role {
    color: var(--primary-color);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.team-bio {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
    }

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

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

@media (max-width: 576px) {
    .values-grid {
        grid-template-columns: 1fr;
    }

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

/* ========================================
   服务详情页
======================================== */
.service-detail {
    padding: 80px 0;
    background-color: var(--bg-primary);
}

.service-detail-header {
    text-align: center;
    margin-bottom: 60px;
}

.service-detail-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.service-detail-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.service-content-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
}

.service-main h2 {
    font-size: 1.75rem;
    color: var(--text-primary);
    margin-bottom: 25px;
    font-weight: 600;
}

.service-main h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin: 30px 0 15px;
    font-weight: 600;
}

.service-main p {
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 20px;
}

.service-features {
    margin: 40px 0;
    padding: 30px;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.service-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 20px;
}

.service-feature-item:last-child {
    margin-bottom: 0;
}

.feature-check {
    width: 24px;
    height: 24px;
    background-color: var(--primary-color);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.9rem;
}

.feature-text {
    color: var(--text-secondary);
    line-height: 1.6;
}

.service-pricing {
    background-color: var(--bg-secondary);
    padding: 30px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.pricing-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    text-align: center;
}

.pricing-item {
    display: flex;
    justify-content: space-between;
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.pricing-label {
    color: var(--text-secondary);
}

.pricing-value {
    font-weight: 600;
    color: var(--primary-color);
}

.cta-section {
    margin-top: 30px;
    text-align: center;
}

@media (max-width: 768px) {
    .service-content-grid {
        grid-template-columns: 1fr;
    }

    .service-detail-header h1 {
        font-size: 2rem;
    }
}

/* ========================================
   联系表单
======================================== */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 25px;
}

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

.form-input,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

.submit-btn {
    width: 100%;
    padding: 14px 32px;
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.submit-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}