/**
 * Kejie Phone Case - 网站全局公共页脚样式
 * 1:1 严格对齐 Home-Page.png 首页设计稿页脚板块
 */

.site-footer {
    background-color: var(--color-dark);
    border-top: 1px solid #f1f5f9;
}

.footer-main {
    padding: 60px 0 50px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.35fr 1.1fr 1fr 1.45fr;
    gap: 40px;
    align-items: start;
}

/* 1. 品牌 Logo 与简介 */
.footer-col-brand .footer-brand-logo {
    display: inline-block;
    margin-bottom: 20px;
}

.footer-col-brand .footer-logo {
    display: block;
    max-height: 48px;
    width: auto;
    object-fit: contain;
}

.footer-brand-desc {
    font-size: 0.8125rem;
    color: var(--color-bg-body);
    line-height: 1.7;
    margin-bottom: 0;
    max-width: 320px;
}

.footer-social-links {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 18px;
}

.footer-social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--color-primary-light, #e6f9f7);
    color: var(--color-primary, #00c4b4);
    border: 1px solid rgba(0, 196, 180, 0.22);
    text-decoration: none;
    transition: all var(--transition-fast, 0.2s ease);
}

.footer-social-link svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
    transition: transform var(--transition-fast, 0.2s ease);
}

.footer-social-link:hover {
    background-color: var(--color-primary, #00c4b4);
    color: #ffffff;
    border-color: var(--color-primary, #00c4b4);
    box-shadow: 0 4px 12px rgba(0, 196, 180, 0.32);
    transform: translateY(-2px);
}

.footer-social-link:hover svg {
    transform: scale(1.1);
}

/* 列通用标题 */
.footer-col-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-bg-body);
    margin-bottom: 22px;
    letter-spacing: -0.01em;
}

/* 2 & 3. 链接列表（产品与快捷导航） */
.footer-links-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links-list li {
    margin-bottom: 10px;
    line-height: 1.5;
}

.footer-links-list li:last-child {
    margin-bottom: 0;
}

.footer-links-list li a {
    font-size: 0.84375rem;
    color: var(--color-bg-body);
    text-decoration: none;
    transition: color var(--transition-fast, 0.2s ease);
}

.footer-links-list li a:hover {
    color: var(--color-primary, #00c4b4);
}

/* 4. 联系方式 (Get In Touch) */
.footer-contact-address {
    font-size: 0.8125rem;
    color: var(--color-bg-body);
    line-height: 1.65;
    margin-bottom: 18px;
}

.footer-contact-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-contact-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    color: var(--color-bg-body);
    text-decoration: none;
    transition: color var(--transition-fast, 0.2s ease);
}

.footer-contact-link:hover {
    color: var(--color-primary, #00c4b4);
}

.footer-contact-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #9ca3af;
    flex-shrink: 0;
}

.footer-contact-icon svg {
    width: 15px;
    height: 15px;
    stroke: currentColor;
}

.footer-contact-link:hover .footer-contact-icon {
    color: var(--color-primary, #00c4b4);
}

/* 5. 底部版权信息条 */
.footer-bottom-strip {
    background: var(--color-gradient-topbar, linear-gradient(90deg, #e63970 0%, #00c4b4 100%));
    color: #ffffff;
    text-align: center;
    padding: 13px 0;
}

.copyright-text {
    margin-bottom: 0;
    font-size: 0.8125rem;
    font-weight: 500;
    color: #ffffff;
    letter-spacing: 0.02em;
}

/* 移动端与平板端响应式适配 */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 36px 30px;
    }
    .footer-brand-desc {
        max-width: 100%;
    }
}

@media (max-width: 640px) {
    .footer-main {
        padding: 40px 0 30px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .footer-col-title {
        margin-bottom: 14px;
    }
    .footer-bottom-strip {
        padding: 12px 16px;
    }
}