* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Montserrat', sans-serif;
    scroll-behavior: smooth;
}

body {
    background-color: #f8f9fa;
    color: #333;
}

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 25, 47, 0.95);
    padding: 20px 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.logo {
    color: #fff;
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 2px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    text-transform: uppercase;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #ffd700;
}

/* Hero Slider */
.hero {
    position: relative;
    height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
}

.slide.active {
    opacity: 1;
}

.slide::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5); /* 暗化滤镜让文字更清晰 */
}

.hero-content {
    color: #fff;
    z-index: 1;
}

.hero-content h1 {
    font-size: 50px;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 3px;
}

.hero-content p {
    font-size: 20px;
    margin-bottom: 40px;
}

.btn {
    padding: 15px 30px;
    background: #ffd700;
    color: #0a192f;
    text-decoration: none;
    font-weight: 600;
    text-transform: uppercase;
    border-radius: 4px;
    transition: 0.3s;
}

.btn:hover {
    background: #fff;
}

/* Sections General */
section {
    padding: 100px 0;
}

h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #0a192f;
}

/* About Section */
.about-grid {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-text {
    flex: 1;
}

.about-text p {
    line-height: 1.8;
    margin-bottom: 20px;
    color: #555;
}

.inline-img {
    width: 100%;
    max-height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-top: 20px;
}

.about-image {
    flex: 1;
}

.about-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* Services Section */
.services-section {
    background: #fff;
}

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

.service-card {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s;
}

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

.service-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 20px;
}

.service-card h3 {
    margin-bottom: 15px;
    color: #0a192f;
}

.service-card p {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
}

/* Network Section */
.network-section {
    background: #0a192f;
    color: #fff;
}

.network-section h2 {
    color: #fff;
}

.network-images {
    display: flex;
    flex-direction: column;
    gap: 30px;
    align-items: center;
}

.network-images img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.map-img {
    max-width: 900px;
}

.globe-img {
    max-width: 600px;
}

/* Footer (Crucial for Meta Verification) */
footer {
    background: #050d1a;
    color: #a0aabf;
    padding: 60px 0 20px;
}

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

.footer-col h4 {
    color: #fff;
    margin-bottom: 20px;
    font-size: 18px;
}

.footer-col p {
    line-height: 1.8;
    font-size: 14px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #1a2942;
    font-size: 12px;
}