.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    background: var(--header-bg);
    border-bottom: 1px solid var(--header-border);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
    transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.page-inner .site-header,
.site-header.header-solid,
.site-header.scrolled {
    background: var(--header-bg);
    border-bottom: 2px solid var(--header-border);
    box-shadow: 0 2px 12px rgba(220, 85, 37, 0.08);
}

.page-home .site-header.scrolled {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 44px;
    width: auto;
    display: block;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-text-cn {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.logo-text-en {
    font-size: 0.65rem;
    color: var(--text-light);
    letter-spacing: 0.05em;
}

.footer-logo {
    height: 40px;
    width: auto;
    display: block;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-item {
    padding: 8px 14px;
    color: var(--text-primary);
    font-size: 0.9rem;
    border-radius: var(--radius-sm);
    transition: color var(--transition);
}

.nav-item:hover,
.nav-item.active {
    color: var(--primary-blue);
    background: transparent;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 8px;
}

.mobile-nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--header-bg);
    padding: 24px;
    z-index: 999;
    overflow-y: auto;
}

.mobile-nav.open {
    display: block;
}

.mobile-nav-item {
    display: block;
    padding: 16px 0;
    color: var(--text-primary);
    font-size: 1.1rem;
    border-bottom: 1px solid var(--border-gray);
}

.mobile-nav-item.active {
    color: var(--primary-blue);
}

.site-footer {
    background: var(--footer-bg);
    color: var(--footer-link);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    margin-top: 16px;
    font-size: 0.9rem;
    line-height: 1.8;
}

.footer-title {
    color: var(--white);
    font-weight: 600;
    margin-bottom: 20px;
    font-size: 1rem;
}

.footer-links a {
    display: block;
    padding: 8px 0;
    font-size: 0.9rem;
    color: var(--footer-link);
    transition: color var(--transition);
}

.footer-links a:hover {
    color: var(--light-blue);
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 0.9rem;
    color: var(--footer-link);
}

.footer-contact-item i {
    color: var(--light-blue);
    margin-top: 4px;
}

.footer-bottom {
    border-top: 1px solid #2d1812;
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.875rem;
    text-align: center;
}

.footer-bottom a {
    color: var(--footer-link);
}

.footer-bottom a:hover {
    color: var(--light-blue);
}

main {
    padding-top: 0;
}

.page-inner main {
    padding-top: var(--header-height);
}

.page-hero {
    background: var(--page-hero-bg);
    padding: 48px 0 60px;
    text-align: center;
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
}

.page-hero::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 4px;
    background: var(--primary-blue);
    opacity: 0.85;
}

.page-hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    position: relative;
}

.page-hero p {
    margin-top: 16px;
    color: var(--hero-subtitle);
    position: relative;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
    font-size: 0.85rem;
    color: var(--text-light);
    position: relative;
}

.breadcrumb a:hover {
    color: var(--primary-blue);
}

@media (max-width: 992px) {
    .nav-menu { display: none; }
    .mobile-toggle { display: block; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .site-header .container {
        padding-left: 16px;
        padding-right: 16px;
    }
    .page-hero {
        padding: calc(var(--header-height) + 32px) 0 40px;
    }
}

@media (max-width: 576px) {
    .footer-grid { grid-template-columns: 1fr; }
    .page-hero h1 { font-size: 1.75rem; }
    .page-hero p {
        font-size: 0.95rem;
        padding: 0 8px;
    }
    .footer-bottom { flex-direction: column; justify-content: center; }
    .site-logo img { height: 36px; }
    .mobile-nav {
        padding: 16px;
    }
    .mobile-nav-item {
        padding: 12px 0;
        font-size: 1rem;
    }
}