:root {
    --primary-color: #6C63FF;
    --secondary-color: #00BFA6;
    --dark-color: #2D3436;
    --light-color: #FFFFFF;
    --gray-color: #636E72;
    --background-color: #F8F9FA;
    --section-padding: 80px 0;
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    overflow-x: hidden;
}

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

/* 通用样式 */
h1, h2, h3 {
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

p {
    margin-bottom: 1rem;
    color: var(--gray-color);
}

.btn-primary {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--primary-color);
    color: var(--light-color);
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: #5753D9;
    transform: translateY(-2px);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links a {
    color: var(--dark-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--dark-color);
    margin: 5px 0;
    transition: all 0.3s ease;
}

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

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

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

/* 主页横幅 */
.hero {
    padding-top: 120px;
    padding-bottom: 80px;
    position: relative;
    overflow: hidden;
    background-color: var(--background-color);
}

.hero-content {
    max-width: 600px;
    position: relative;
    z-index: 1;
}

.hero-bg {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.purple-circle {
    position: absolute;
    top: -100px;
    right: -50px;
    width: 500px;
    opacity: 0.6;
    filter: blur(60px);
}

.turquoise-circle {
    position: absolute;
    bottom: -50px;
    right: 30%;
    width: 300px;
    opacity: 0.4;
    filter: blur(60px);
}

/* 合作伙伴 */
.partners {
    padding: var(--section-padding);
    text-align: center;
}

.partner-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 50px;
    margin-top: 50px;
    flex-wrap: wrap;
}

.partner-logos img {
    height: 60px;
    width: auto;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.partner-logos img:hover {
    opacity: 1;
}

/* 关于我们 */
.about {
    padding: var(--section-padding);
    background-color: var(--background-color);
}

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

/* 优势 */
.advantages {
    padding: var(--section-padding);
    text-align: center;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.advantage-card {
    padding: 30px;
    background-color: var(--light-color);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.advantage-card:hover {
    transform: translateY(-5px);
}

.advantage-card img {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
}

/* 服务介绍 */
.services {
    padding: var(--section-padding);
    background-color: var(--background-color);
}

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

.service-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 成就展示 */
.achievements {
    padding: var(--section-padding);
    text-align: center;
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.achievement-card {
    padding: 30px;
    background-color: var(--light-color);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.achievement-card img {
    width: 50px;
    height: 50px;
    margin-bottom: 15px;
}

.achievement-card h3 {
    color: var(--primary-color);
    font-size: 2rem;
}

/* 联系我们 */
.contact {
    padding: var(--section-padding);
    background-color: var(--background-color);
    text-align: center;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--dark-color);
    text-decoration: none;
    padding: 15px 25px;
    background-color: var(--light-color);
    border-radius: 5px;
    transition: transform 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-2px);
}

.contact-item svg {
    width: 24px;
    height: 24px;
}

/* 页脚 */
.footer {
    background-color: var(--dark-color);
    color: var(--light-color);
    padding: 60px 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

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

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.footer-links a {
    color: var(--light-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--secondary-color);
}

.footer-info p {
    color: #A0A0A0;
    margin-bottom: 10px;
}

/* 语言切换按钮样式 */
.language-switch {
    display: flex;
    gap: 8px;
    padding: 4px;
    background: rgba(140, 48, 245, 0.1);
    border-radius: 12px;
    margin-left: 2rem;
}

.language-btn {
    padding: 8px 16px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--dl-color-purple-default);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
}

.language-btn:hover {
    background: rgba(140, 48, 245, 0.2);
}

.language-btn.active {
    background: var(--dl-color-purple-default);
    color: white;
    box-shadow: 0 2px 4px rgba(140, 48, 245, 0.2);
}

/* 响应式设计 */
@media (max-width: 768px) {
    h1 {
        font-size: 3rem;
    }

    h2 {
        font-size: 2rem;
    }

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

    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        height: auto;
        background-color: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        padding: 20px;
        flex-direction: column;
        gap: 20px;
        transform: translateY(-150%);
        opacity: 0;
        transition: all 0.3s ease;
        z-index: 1000;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
    }

    .nav-links a {
        width: 100%;
        text-align: center;
        padding: 10px;
    }

    .nav-links a:hover {
        background-color: var(--background-color);
        border-radius: 5px;
    }

    .nav-links .btn-primary {
        width: 100%;
        text-align: center;
    }

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

    .partner-logos {
        gap: 30px;
    }

    .partner-logos img {
        height: 40px;
    }

    .language-switch {
        margin: 1rem 0;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2.5rem;
    }

    .container {
        padding: 0 15px;
    }

    .contact-info {
        flex-direction: column;
    }
}