/* style.css - 全局样式 */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --secondary: #475569;
    --accent: #10b981;
    --accent-dark: #0da271;
    --text: #1f2937;
    --text-light: #6b7280;
    --background: #f8fafc;
    --card: #ffffff;
    --border: #e5e7eb;
    --shadow: 0 4px 6px rgba(0,0,0,0.05);
    --shadow-hover: 0 12px 20px rgba(0,0,0,0.1);
}

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

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--background);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* 动画效果 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

.fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

/* 头部导航 */
.header {
    background: linear-gradient(135deg, var(--primary) 0%, #1e40af 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo::before {
    content: "🔧";
    font-size: 2rem;
}

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

.nav-list {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.3s;
}

.nav-link:hover {
    background-color: rgba(255,255,255,0.1);
}

.nav-link.active {
    background-color: rgba(255,255,255,0.15);
    font-weight: 600;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, #1e40af 100%);
    color: white;
    padding: 5rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    font-weight: 800;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
    animation: fadeIn 0.8s ease-out;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeIn 0.8s ease-out 0.2s backwards;
}

/* 按钮样式 */
.btn {
    padding: 0.9rem 2.2rem;
    border: none;
    border-radius: 8px;
    font-size: 1.05rem;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s;
    font-weight: 600;
    box-shadow: var(--shadow);
}

.btn-primary {
    background-color: var(--accent);
    color: white;
}

.btn-primary:hover {
    background-color: var(--accent-dark);
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

.btn-secondary {
    background-color: rgba(255,255,255,0.15);
    color: white;
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255,255,255,0.3);
}

.btn-secondary:hover {
    background-color: rgba(255,255,255,0.25);
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

/* 卡片样式 */
.section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3.5rem;
    color: var(--text);
    font-weight: 700;
    position: relative;
}

.section-title::after {
    content: "";
    display: block;
    width: 60px;
    height: 4px;
    background: var(--accent);
    margin: 0.5rem auto 0;
    border-radius: 2px;
}

/* 服务卡片 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.service-card {
    background: var(--card);
    padding: 2.5rem 2rem;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

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

.service-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    color: var(--primary);
    transition: transform 0.3s;
}

.service-card:hover .service-icon {
    transform: scale(1.2);
}

.service-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text);
}

.service-desc {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* 合作伙伴 */
.partners {
    background: var(--card);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 3rem;
    align-items: center;
    justify-items: center;
}

.partner-logo {
    font-size: 2rem;
    color: var(--text-light);
    opacity: 0.7;
    transition: all 0.3s;
}

.partner-logo:hover {
    color: var(--primary);
    opacity: 1;
    transform: scale(1.1);
}

/* 页脚 */
.footer {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: white;
    padding: 3rem 0;
    border-top: 1px solid #1e293b;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: white;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: white;
}

.contact-info {
    margin: 1.5rem 0;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1rem;
    color: #cbd5e1;
}

.copyright {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid #334155;
    text-align: center;
    font-size: 0.9rem;
    opacity: 0.7;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

    .mobile-menu-btn {
        display: block;
    }

    .nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--primary-dark);
        flex-direction: column;
        padding: 1rem;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s;
    }

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

    .nav-list {
        flex-direction: column;
        gap: 1rem;
    }

    .section {
        padding: 3rem 0;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* 添加新样式到style.css */

.service-detail {
    max-width: 1200px;
    margin: 0 auto;
}

.service-header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem;
    background: linear-gradient(135deg, var(--primary) 0%, #1e40af 100%);
    color: white;
    border-radius: 12px;
}

.service-icon-large {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.service-content {
    background: var(--card);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 3rem;
}