/* 全局样式 */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    line-height: 1.6;
    overflow-x: hidden;
}

/* 页面加载动画 */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #111;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.spinner {
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-left-color: #00bfff;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 导航栏样式 */
header nav {
    background-color: #111;
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 50px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.logo h1 {
    margin: 0;
}

.nav-links {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
}

.nav-links li {
    margin: 0 15px;
}

.nav-links li a {
    color: white;
    text-decoration: none;
    padding: 10px 15px;
    display: block;
    transition: background-color 0.3s ease;
}

.nav-links li a:hover {
    background-color: #00bfff;
}

.nav-links li a.active {
    background-color: #00bfff;
}

.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: white;
    margin: 5px;
    transition: all 0.3s ease;
}

/* 英雄区域样式 */
.hero {
    position: relative;
    height: 100vh;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-content {
    text-align: center;
    color: white;
    z-index: 1;
}

.hero-content h2 {
    font-size: 4rem;
    margin-bottom: 20px;
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

.hero-content p {
    font-size: 1.5rem;
    margin-bottom: 30px;
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

.cta-button {
    background-color: #00bfff;
    color: white;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-size: 1.2rem;
    transition: background-color 0.3s ease;
    box-shadow: 0 0 10px rgba(0, 191, 255, 0.5);
}

.cta-button:hover {
    background-color: #009acd;
    box-shadow: 0 0 20px rgba(0, 191, 255, 0.8);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../img/hero.png');
    background-size: cover;
    background-position: center;
    filter: brightness(0.4);
    z-index: -1;
}

/* 核心业务展示样式 */
.services {
    padding: 100px 50px;
    text-align: center;
    background-color: #111;
    color: white;
}

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

.service-item {
    width: 300px;
    padding: 20px;
    background-color: #222;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
}

.service-item:hover {
    transform: translateY(-10px);
}

.service-item i {
    font-size: 3rem;
    color: #00bfff;
    margin-bottom: 20px;
}

.service-item h3 {
    margin-bottom: 10px;
}

/* 新闻板块样式 */
.news {
    padding: 100px 50px;
    text-align: center;
    background-color: #1a1a1a;
    color: white;
}

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

.news-item {
    width: 300px;
    background-color: #222;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.news-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.news-item h3 {
    padding: 10px 20px;
    margin: 0;
}

.news-item h3 a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

.news-item h3 a:hover {
    color: #00bfff;
}

.news-item p {
    padding: 0 20px 20px;
    margin: 0;
}

/* 合作伙伴板块样式 */
.partners {
    padding: 100px 50px;
    text-align: center;
    background-color: #111;
    color: white;
}

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

.partner-item {
    width: 200px;
    height: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #222;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

.partner-item img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
}

/* 页脚样式 */
footer {
    background-color: #111;
    color: white;
    text-align: center;
    padding: 20px 0;
}

.social-links {
    margin-top: 10px;
}

.social-links a {
    color: white;
    font-size: 1.5rem;
    margin: 0 10px;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: #00bfff;
}

/* 响应式设计 */
@media screen and (max-width: 768px) {
    .nav-links {
        position: absolute;
        right: 0;
        height: 92vh;
        top: 8vh;
        background-color: #333;
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 50%;
        transform: translateX(100%);
        transition: transform 0.5s ease-in;
    }

    .nav-links li {
        opacity: 0;
    }

    .burger {
        display: block;
    }
}

.nav-active {
    transform: translateX(0%);
}

@keyframes navLinkFade {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0px);
    }
}

.toggle .line1 {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.toggle .line2 {
    opacity: 0;
}

.toggle .line3 {
    transform: rotate(45deg) translate(-5px, -6px);
}