/* 基本样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    color: #333;
    line-height: 1.6;
    overflow-x: hidden;
    background-color: #f8f9fa;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 80px 0;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 15px;
    color: #222;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2.2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 15px;
    color: #555;
}

a {
    color: #4285f4;
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: #34a853;
}

img, svg {
    max-width: 100%;
    height: auto;
}

ul {
    list-style: none;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 500;
    font-size: 16px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn.primary {
    background-color: #4285f4;
    color: #fff;
    border: 2px solid #4285f4;
}

.btn.primary:hover {
    background-color: #3367d6;
    border-color: #3367d6;
}

.btn.secondary {
    background-color: transparent;
    color: #4285f4;
    border: 2px solid #4285f4;
}

.btn.secondary:hover {
    background-color: #4285f4;
    color: #fff;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
    position: relative;
}

.section-title:after {
    content: "";
    display: block;
    width: 60px;
    height: 4px;
    background-color: #4285f4;
    margin: 15px auto 0;
    border-radius: 2px;
}

/* 头部导航栏样式 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 15px 0;
    transition: all 0.3s ease;
}

header.scrolled {
    padding: 10px 0;
}

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

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

.logo-svg {
    width: 150px;
    height: 40px;
}

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

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

.menu li {
    margin-left: 25px;
}

.menu li a {
    color: #333;
    font-weight: 500;
    position: relative;
}

.menu li a:hover {
    color: #4285f4;
}

.menu li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #4285f4;
    transition: all 0.3s ease;
}

.menu li a:hover::after {
    width: 100%;
}

.contact-btn {
    background-color: #4285f4;
    color: #fff !important;
    padding: 8px 20px;
    border-radius: 20px;
}

.contact-btn:hover {
    background-color: #3367d6;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    position: relative;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: #333;
    position: absolute;
    left: 0;
    transition: all 0.3s ease;
}

.mobile-menu-btn span:nth-child(1) {
    top: 0;
}

.mobile-menu-btn span:nth-child(2) {
    top: 9px;
}

.mobile-menu-btn span:nth-child(3) {
    top: 18px;
}

/* 英雄区域样式 */
.hero {
    padding: 180px 0 100px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e6f3ff 100%);
    position: relative;
    overflow: hidden;
}

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

.hero-content {
    flex: 1;
    max-width: 550px;
}

.hero-content h1 {
    font-size: 2.8rem;
    margin-bottom: 20px;
    color: #222;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: #555;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.hero-image {
    flex: 1;
    max-width: 500px;
    margin-left: 30px;
}

/* 服务区域样式 */
.services {
    background-color: #fff;
    position: relative;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(66, 133, 244, 0.15);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
}

.service-card h3 {
    margin-bottom: 15px;
    color: #333;
}

/* 优势区域样式 */
.advantages {
    background-color: #f8f9fa;
    position: relative;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
}

.advantage-item {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(66, 133, 244, 0.15);
}

.advantage-number {
    font-size: 3rem;
    font-weight: 700;
    color: rgba(66, 133, 244, 0.1);
    position: absolute;
    top: 10px;
    right: 20px;
}

.advantage-item h3 {
    position: relative;
    z-index: 2;
    margin-bottom: 15px;
}

/* 流程区域样式 */
.process {
    background-color: #fff;
    position: relative;
}

.process-steps {
    max-width: 800px;
    margin: 0 auto;
}

.process-step {
    display: flex;
    margin-bottom: 50px;
    position: relative;
}

.process-step:last-child {
    margin-bottom: 0;
}

.process-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 50px;
    left: 25px;
    width: 2px;
    height: calc(100% + 20px);
    background-color: #e6f3ff;
}

.step-icon {
    flex: 0 0 50px;
    margin-right: 30px;
    position: relative;
    z-index: 2;
}

.step-content {
    flex: 1;
}

/* 案例区域样式 */
.cases {
    background-color: #f8f9fa;
    position: relative;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.case-card {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(66, 133, 244, 0.15);
}

.case-industry {
    display: inline-block;
    background-color: #e6f3ff;
    color: #4285f4;
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.case-result {
    display: flex;
    gap: 20px;
    margin: 20px 0;
}

.result-item {
    flex: 1;
}

.result-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: #4285f4;
}

.result-label {
    font-size: 0.9rem;
    color: #777;
}

/* 联系我们区域样式 */
.contact {
    background-color: #fff;
    position: relative;
}

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

.contact-info {
    padding-right: 30px;
}

.contact-method {
    display: flex;
    align-items: center;
    margin-top: 30px;
}

.method-icon {
    width: 24px;
    height: 24px;
    margin-right: 15px;
}

.contact-form .form-group {
    margin-bottom: 20px;
}

.contact-form label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #4285f4;
    box-shadow: 0 0 0 2px rgba(66, 133, 244, 0.2);
}

/* 页脚区域样式 */
footer {
    background-color: #222;
    color: #fff;
    padding: 80px 0 30px;
    position: relative;
}

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

.footer-logo p {
    color: #aaa;
    margin-top: 20px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.footer-links-column h4 {
    color: #fff;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-links-column h4::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: #4285f4;
}

.footer-links-column ul li {
    margin-bottom: 10px;
}

.footer-links-column ul li a {
    color: #aaa;
    transition: all 0.3s ease;
}

.footer-links-column ul li a:hover {
    color: #4285f4;
}

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

.footer-bottom p {
    color: #777;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media screen and (max-width: 992px) {
    h1 {
        font-size: 2.2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .hero {
        padding: 150px 0 80px;
    }
    
    .hero .container {
        flex-direction: column;
    }
    
    .hero-content {
        max-width: 100%;
        text-align: center;
        margin-bottom: 40px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-image {
        max-width: 100%;
        margin-left: 0;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media screen and (max-width: 768px) {
    section {
        padding: 60px 0;
    }
    
    .mobile-menu-btn {
        display: block;
        z-index: 1001;
    }
    
    .menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: #fff;
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        padding: 50px 30px;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        transition: all 0.4s ease;
        z-index: 1000;
    }
    
    .menu.active {
        right: 0;
    }
    
    .menu li {
        margin: 15px 0;
        width: 100%;
    }
    
    .menu li a {
        display: block;
        width: 100%;
    }
    
    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 6px);
    }
    
    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -6px);
    }
    
    .advantages-grid,
    .case-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}