/* ==========================================================================
   联系我们页样式 - HEDU 蓝色调版本
   ========================================================================== */

/* ============== 联系方式卡片 ============== */
.contact-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.contact-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 40px 32px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 0;
}

.contact-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.contact-card:hover::before { opacity: 1; }
.contact-card:hover > * { color: var(--color-white); position: relative; z-index: 1; }
.contact-card:hover .contact-icon {
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-accent-light);
}
.contact-card:hover .contact-detail {
    background: linear-gradient(135deg, #FFFFFF 0%, var(--color-accent-light) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
}
.contact-card:hover .contact-note {
    color: rgba(255, 255, 255, 0.8);
}

.contact-icon {
    width: 64px;
    height: 64px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(10, 37, 64, 0.06), rgba(30, 136, 229, 0.1));
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
    transition: var(--transition);
    position: relative;
    z-index: 1;
}

.contact-card h3 {
    font-size: 1.05rem;
    margin-bottom: 12px;
    color: var(--color-primary);
    position: relative;
    z-index: 1;
    transition: var(--transition);
}

.contact-detail {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
    transition: var(--transition);
    word-break: break-all;
    letter-spacing: -0.01em;
}

.contact-note {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.65;
    margin: 0;
    position: relative;
    z-index: 1;
    transition: var(--transition);
}

/* ============== 在线留言（居中单栏） ============== */
.form-solo {
    max-width: 1040px;
    margin: 0 auto;
}

.form-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 44px;
    box-shadow: var(--shadow-sm);
}

.form-card h2 {
    font-size: clamp(1.4rem, 2.2vw, 1.75rem);
    margin-bottom: 14px;
    color: var(--color-primary);
}

.form-desc {
    color: var(--color-text-muted);
    font-size: 0.92rem;
    margin-bottom: 36px;
    line-height: 1.75;
}

/* ============== 表单 ============== */
.contact-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-row .form-group {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 10px;
    letter-spacing: 0.02em;
}

.required {
    color: var(--color-accent);
    margin-left: 2px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px 18px;
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--color-text);
    background-color: var(--color-bg-alt);
    border: 1.5px solid var(--color-border);
    border-radius: 8px;
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-accent);
    background-color: var(--color-white);
    box-shadow: 0 0 0 4px rgba(30, 136, 229, 0.12);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-light);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
    line-height: 1.6;
}

.form-actions {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-top: 32px;
    flex-wrap: wrap;
}

.form-tip {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ============== 地图区 ============== */
.map-visual {
    width: 100%;
    aspect-ratio: 4 / 3;
    background: linear-gradient(135deg, #F0F7FF 0%, #E3F2FD 100%);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 16px;
    border: 1px solid var(--color-border);
}

.map-visual iframe {
    width: 100%;
    height: 100%;
    display: block;
}

.map-nav-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 28px;
    padding: 12px 20px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-accent-dark);
    background-color: rgba(30, 136, 229, 0.08);
    border: 1px solid rgba(30, 136, 229, 0.2);
    border-radius: 8px;
    transition: var(--transition);
}

.map-nav-link:hover {
    background-color: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(30, 136, 229, 0.25);
}

.map-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.map-info li {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 14px 0;
    border-bottom: 1px dashed var(--color-border);
}

.map-info li:last-child {
    border-bottom: none;
}

.map-info strong {
    font-size: 0.85rem;
    color: var(--color-accent);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-weight: 600;
}

.map-info span {
    font-size: 0.95rem;
    color: var(--color-text);
    font-weight: 500;
}

/* ============== 合作类型 ============== */
.coop-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.coop-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 36px 28px;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.coop-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.coop-tag {
    display: inline-block;
    width: fit-content;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-white);
    padding: 5px 14px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: 100px;
    letter-spacing: 0.05em;
    margin-bottom: 18px;
}

.coop-card h3 {
    font-size: 1.08rem;
    margin-bottom: 12px;
    color: var(--color-primary);
}

.coop-card p {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    line-height: 1.75;
    flex: 1;
    margin-bottom: 24px;
}

/* ============== 响应式 ============== */
@media (max-width: 1024px) {
    .contact-cards,
    .coop-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .contact-cards,
    .coop-grid {
        grid-template-columns: 1fr;
    }
    .form-card {
        padding: 32px;
    }
    .contact-form .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    .form-actions {
        flex-direction: column;
        align-items: stretch;
    }
    .form-actions .btn {
        width: 100%;
    }
}