/* ===== Page Hero V2 - 联系页面风格 ===== */
.page-hero-v2 {
    position: relative;
    height: 320px;
    min-height: 280px;
    max-height: 360px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.page-hero-v2__background {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
}

.page-hero-v2__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.5) 100%);
}

.page-hero-v2__content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    padding: 0 1.5rem;
    max-width: 800px;
}

.page-hero-v2__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(8px);
    border-radius: 100px;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255,255,255,0.2);
}

.page-hero-v2__title-zh {
    font-family: var(--font-chinese-heading, 'Noto Sans SC', sans-serif);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3), 0 4px 20px rgba(0,0,0,0.4);
    letter-spacing: 0.05em;
}

.page-hero-v2__title-en {
    font-size: 1rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    opacity: 0.9;
    margin-bottom: 0.75rem;
}

.page-hero-v2__subtitle {
    font-size: 1.125rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .page-hero-v2 {
        height: 260px;
        min-height: 240px;
    }
    .page-hero-v2__title-zh {
        font-size: 1.75rem;
    }
    .page-hero-v2__title-en {
        font-size: 0.875rem;
    }
    .page-hero-v2__subtitle {
        font-size: 1rem;
    }
}

.section-content {
    padding: 4rem 0;
}

.page-layout {
    display: grid;
    grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
    gap: 2.5rem;
    align-items: start;
}

.page-layout--no-sidebar {
    grid-template-columns: 1fr;
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.page-layout .content-wrapper {
    max-width: 100%;
    margin: 0;
}

.page-sidebar {
    position: relative;
}

.sidebar-card {
    position: sticky;
    top: 120px;
    background: #ffffff;
    border-radius: 20px;
    border: 2px solid rgba(124, 58, 237, 0.08);
    box-shadow: 0 14px 28px rgba(124, 58, 237, 0.08), 0 6px 12px rgba(15, 23, 42, 0.06);
    padding: 1.5rem;
}

.sidebar-title {
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-gray-900, #111827);
    margin: 0 0 1rem;
}

.side-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.side-nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-radius: 14px;
    text-decoration: none;
    font-weight: 600;
    color: var(--color-gray-700, #374151);
    background: rgba(124, 58, 237, 0.06);
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

.side-nav-link:hover {
    color: var(--color-primary, #7C3AED);
    border-color: rgba(124, 58, 237, 0.25);
    box-shadow: 0 10px 20px rgba(124, 58, 237, 0.12);
    transform: translateY(-2px);
}

.side-nav-link.active {
    color: #ffffff;
    background: linear-gradient(135deg, #7C3AED 0%, #A78BFA 100%);
    border-color: rgba(124, 58, 237, 0.6);
    box-shadow: 0 14px 26px rgba(124, 58, 237, 0.35);
}

.content-card {
    background: #ffffff;
    border-radius: 20px;
    border: 2px solid rgba(124, 58, 237, 0.08);
    box-shadow: 0 16px 36px rgba(124, 58, 237, 0.08), 0 8px 16px rgba(15, 23, 42, 0.06);
    padding: 2.5rem 2.5rem 2rem;
}

.content-header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--color-gray-200, #E5E7EB);
}

.section-eyebrow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.35rem 0.9rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    background: rgba(124, 58, 237, 0.12);
    color: var(--color-primary, #7C3AED);
    margin-bottom: 0.75rem;
}

.content-header .lead {
    font-size: 1.1rem;
    color: var(--color-gray-600, #4B5563);
    margin: 0;
}

.page-content.prose {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-gray-700, #374151);
}

.content-body h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-gray-900, #111827);
    margin: 2.5rem 0 1rem;
    padding-top: 1rem;
}

.content-body h3 {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--color-gray-800, #1F2937);
    margin: 2rem 0 0.75rem;
}

.content-body h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-primary, #1e3a8a);
    margin: 1.5rem 0 0.5rem;
}

.content-body p {
    margin-bottom: 1.25rem;
}

.content-body a {
    color: var(--color-primary, #7C3AED);
    text-decoration: none;
    border-bottom: 1px solid rgba(124, 58, 237, 0.35);
    transition: color 0.2s ease, border-color 0.2s ease;
}

.content-body a:hover {
    color: #5B21B6;
    border-color: rgba(91, 33, 182, 0.5);
}

.content-body ul,
.content-body ol {
    margin: 1.25rem 0;
    padding-left: 1.5rem;
}

.content-body li {
    margin-bottom: 0.5rem;
}

.content-body strong {
    color: var(--color-primary, #1e3a8a);
    font-weight: 600;
}

.content-body blockquote {
    border-left: 4px solid var(--color-primary, #1e3a8a);
    padding: 1rem 1.5rem;
    margin: 2rem 0;
    background: var(--color-gray-50, #F9FAFB);
    border-radius: 0 8px 8px 0;
    font-style: italic;
}

.content-body img {
    max-width: 100%;
    border-radius: 14px;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.12);
    margin: 1.5rem 0;
}

.content-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 1rem;
}

.content-body table th,
.content-body table td {
    border: 1px solid var(--color-gray-200, #E5E7EB);
    padding: 0.75rem 1rem;
    text-align: left;
}

.content-body table th {
    background: var(--color-gray-50, #F9FAFB);
    font-weight: 600;
}

.cta-section {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    padding: 0;
}

.cta-section h2 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-gray-800);
}

.cta-section p {
    display: none;
}

.cta-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .section-content {
        padding: 2.5rem 0;
    }

    .page-layout {
        grid-template-columns: 1fr;
        gap: 1.75rem;
    }

    .sidebar-card {
        position: static;
    }

    .side-nav ul {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .side-nav-link {
        flex: 1 1 140px;
    }

    .content-card {
        padding: 2rem 1.5rem 1.5rem;
    }
    
    .content-body h2 {
        font-size: 1.5rem;
    }
    
    .content-body h3 {
        font-size: 1.25rem;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
}

@media (prefers-reduced-motion: reduce) {
    .content-body a {
        transition: none;
    }

    .side-nav-link,
    .side-nav-link:hover {
        transition: none;
        transform: none;
    }
}