:root {
    --site-header-height: 80px;
}

html {
    scroll-padding-top: var(--site-header-height);
}

body {
    padding-top: var(--site-header-height);
}

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    min-height: var(--site-header-height);
    background-color: #fff;
    box-shadow: 0 2px 12px rgba(91, 59, 42, 0.08);
}
header .header-box {
    display: flex; 
    align-items: center; 
    justify-content: space-between;
    max-width: 1200px;
    min-height: var(--site-header-height);
    margin: 0 auto;
}
.lang-switch {
    margin-left: 20px;
}
.header-nav-links {
    display: flex;
    gap: 40px;
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
}

.header-nav-links a {
    color: #483228;
    list-style: none;
    text-decoration: none;
    font-size: 16px;
}
.header-nav-links-active {
    font-weight: bold;
    color: #804220 !important;
    position: relative;
}
.header-nav-links-active:before {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 2px;
    background: #804220;
}
.banner-container {
    position: relative;
    width: 100%;
    overflow: hidden;
    padding-top: 83px;
    min-width: 1200px;
}
.banner-container .left-box {
    position: absolute;
    top: 75%;
    left: 5%;
    transform: translateY(-50%);
    color: #2E2E2E;
    line-height: 2;
}
.banner-container .order-button { 
    background-color: #734426;
    color: #fff; 
    font-weight: bold;
    padding: 6px 40px;
    border-radius: 25px;
    font-size: 16px; 
    list-style: none;
    text-decoration: none;
    margin-top: 60px;
    display: inline-block;
}