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

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
    color: #333;
    background-color: #ffffff;
    line-height: 1;
}

/* Header */
.header {
    position: relative;
    z-index: 100;
}

.header-container {
    max-width: 1920px;
    margin: 0 auto;
    padding: 0 60px;
    display: flex;
    justify-content: space-between;
}

.logo {
    flex-shrink: 0;
    padding-top: 1%;
}

.logo img {
    height: 115px;
    width: auto;
    display: block;
}

.header-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 30px;
    padding: 45px 0 25px;
}

.nav {
    display: block;
    width: 100%;
}

.nav-link {
    color: #727171;
    text-decoration: none;
    font-size: 24px;
    font-weight: 400;
    transition: color 0.3s ease;
    white-space: nowrap;
    letter-spacing: 0.5px;
    padding: 0 40px;
    border-left: 2px solid #727171;
    line-height: 24px;
}

.nav .nav-link:last-child{
    border-right: 2px solid #727171;
}

.nav-link.active {
    color: #00bcd4;
}

.nav-link:hover {
    color: #00bcd4;
}

.social-icons {
    display: flex;
    gap: 10px;
    align-items: center;
}

.social-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 20px;
    font-weight: 400;
    transition: all 0.3s ease;
}

.social-in {
    background-color: #666666;
    color: #ffffff;
}

.social-fb {
    background-color: #00bcd4;
    color: #ffffff;
}

.social-icon:hover {
    opacity: 0.85;
    transform: translateY(-1px);
}

/* Hero Section */
.hero {
    width: 100%;
    background-color: #f5f5f5;
}

.hero-image {
    width: 100%;
    height: auto;
    display: block;
}

/* Tagline Section */
.tagline-section {
    background: #fff;
    padding: 330px 0 430px 0;
}

.tagline-container {
    max-width: 1920px;
    margin: 0 auto;
    padding: 0 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 60px;
}

.decoration-wrapper {
    position: relative;
    width: 120px;
    height: 180px;
    flex-shrink: 0;
}

.decoration-cross {
    position: absolute;
    left: 50%;
    top: 80%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 180px;
}

.cross-vertical {
    position: absolute;
    left: 20%;
    top: 120%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 330px;
    background: linear-gradient(0deg, #7dc163 0%, #00a0ca 100%);
}

.cross-horizontal {
    position: absolute;
    left: 100%;
    top: 100%;
    transform: translate(-50%, -50%);
    width: 330px;
    height: 8px;
    background: linear-gradient(90deg, #7dc163 0%, #00a0ca 100%);
}

.tagline-text {
    font-size: 80px;
    font-weight: 500;
    color: #727171;
    letter-spacing: 16px;
    line-height: 1.5;
    white-space: nowrap;
}

/* Footer */
.footer {
    background-color: #ffffff;
    border-top: 1px solid #727171;
    padding: 32px 0;
}

.footer-container {
    max-width: 1920px;
    margin: 0 auto;
    padding: 0 80px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.copyright {
    color: #727171;
    font-size: 18px;
    font-weight: 400;
}

.footer-links {
    display: flex;
    gap: 15px;
    align-items: center;
}

.footer-links a {
    color: #727171;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #4fc3f7;
}

.separator {
    color: #727171;
    font-size: 12px;
}

.product-description{
    position: relative;
    padding-top: 40px;
}

.product-description:after{
    content: '';
    position: absolute;
    width: 130px;
    height: 1px;
    background: #000;
    top: 0;
    left: 0;
}
.product-subtitle{
    font-weight: 600 !important;
}

/* Responsive */
@media (max-width: 1440px) {
    .header-container {
        padding: 0 60px;
    }
    
    .tagline-container {
        padding: 0 120px;
    }
    
    .tagline-text {
        font-size: 56px;
        letter-spacing: 12px;
    }
    
    .footer-container {
        padding: 0 60px;
    }
}

@media (max-width: 1024px) {
    .header-container {
        padding: 0 40px;
        height: 70px;
    }
    
    .nav {
        gap: 50px;
    }
    
    .tagline-section {
        padding: 150px 0 200px 0;
    }
    
    .tagline-container {
        padding: 0 80px;
        gap: 40px;
    }
    
    .decoration-wrapper {
        width: 100px;
        height: 150px;
    }
    
    .cross-vertical {
        height: 150px;
    }
    
    .cross-horizontal {
        width: 100px;
    }
    
    .tagline-text {
        font-size: 48px;
        letter-spacing: 10px;
    }
    
    .footer-container {
        padding: 0 40px;
    }
}

@media (max-width: 768px) {
    .header-container {
        padding: 0 5px;
        height: 60px;
        flex-wrap: nowrap;
        justify-content: space-between;
    }
    
    .nav {
        position: static;
        transform: none;
        gap: 30px;
        order: 3;
        width: 100%;
        justify-content: center;
        padding: 10px 0;
    }
    
    .social-icons {
        order: 2;
    }
    
    .tagline-section {
        padding: 80px 0 120px 0;
    }
    
    .tagline-container {
        padding: 0 20px;
        flex-direction: column;
        gap: 30px;
        align-items: flex-start;
        position: relative;
    }
    
    .decoration-wrapper {
        width: 80px;
        height: 120px;
        position: absolute;
        top: 0%;
    }
    
    .cross-vertical {
        height: 80px;
        width: 4px;
        top: 20%;
        left: 30%;
    }
    
    .cross-horizontal {
        width: 80px;
        height: 4px;
        top: 20%;
        left: 50%;
    }
    
    .tagline-text {
        font-size: 22px;
        letter-spacing: 6px;
        white-space: normal;
        text-align: center;
        width: 100%;
    }
    
    .footer-container {
        padding: 0 20px;
        flex-direction: column;
        gap: 16px;
    }
    .logo img{
        height: 30px;
    }
    .header-right{
        gap: 0;
        padding: 0;
    }
    .social-icon{
        width: 25px;
        height: 25px;
        font-size: 12px;
    }
    .nav-link{
        font-size: 14px;
        padding: 0 5px;
        border-width: 1px;
    }
    .nav .nav-link:last-child{
        border-width: 1px;
    }
    .logo{
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .copyright{
        font-size: 15px;
    }
    .footer-links a{
        font-size: 14px;
    }
}