:root {
    --primary: #0a192f;
    --secondary: #CCCDCF;
    --accent: #00ffcc;
    --accent-alt: #4dccff;
    --text: #333;
    --text-light: #666;
    --highlight: #ff2e63;
    --dark: #4C60A4;
    --light: #f8f9fa;
    --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'HarmonyOS_Sans_Regular';
}

body {
    color: #e6f1ff;
    overflow-y: scroll;
    overflow-x: hidden;
}

/* 头部导航 */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: white;
    border-bottom: 1px solid #acacac;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.logo img {
    width: 240px;
    height: auto;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(to right, var(--accent), var(--accent-alt));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 导航菜单 */
.nav-menu {
    display: flex;
    gap: 2.5rem;
}

.nav-menu li {
    list-style: none;
}

.nav-menu-a {
    font-family: 'HarmonyOS_Sans_Regular';
    text-decoration: none;
    color: #000;
    font-weight: 500;
    font-size: 1.1rem;
    position: relative;
    transition: var(--transition);
}

.nav-menu-a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #017A75;
    transition: var(--transition);
}

.nav-menu-a:hover {
    color: #017A75;
}

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

.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    font-size: 1.8rem;
    color: var(--text);
    cursor: pointer;
}


/* 页脚 */
footer {
    background-image: url('../../../images/footer_bg.jpg');
    color: white;
    padding: 3rem 5% 1rem;
    text-align: center;
    background-size: cover;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto 30px;
    text-align: left;
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    flex-flow: row wrap;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    width: 400px;
    height: auto;
}

.footer-logo img{
    width: 400px;
    height: auto;
}

.footer-logo-text {
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
}

.footer-support{
    color:#000
}

.footer-right-column{
    flex-grow: 1;
}

.footer-left-column{
    flex-grow: 2;
}

.footer-right-column h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: #000;
}

.footer-support p{
    margin-bottom: 10px;
}
.footer-links {
    list-style: none;
    
}

.footer-links li {
    margin-bottom: 0.4rem;
}

.footer-links a {
    color: #000;
    text-decoration: none;
    transition: var(--transition);
}

.copyright {
    font-size: 0.8rem;
    color: #000;
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #32E1C6;
        flex-direction: column;
        align-items: center;
        padding: 2rem;
        gap: 1.5rem;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    }

    .nav-menu.active {
        display: flex;
    }

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

    .fas {
        color: black !important;
    }

    .hero-title {
        font-size: 2rem !important;
    }

    .footer-content {
        flex-flow: column wrap;
        font-size: 12px;
    }

    .hero-buttons{
        display: none;
    }

    .footer-support {
        display: none;
    }
}