/**
 * footer.css
 * 页脚模块样式 - 完整响应式 + 移动端左对齐修复 + 合并二维码模块 + 验证码容器（同行优化）
 */

.footer {
    background-color: var(--color-footer-bg);
    color: var(--color-footer-text);
    padding: var(--spacing-4xl) var(--spacing-lg) 22px;
    position: relative;
    z-index: 50;
    margin-top: auto;
    transition: background-color var(--animation-speed-normal) ease, 
                margin-left 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                width 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    width: 100%;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
    margin-left: var(--layout-sidebar-width);
    width: calc(100% - var(--layout-sidebar-width));
}

body.sidebar-collapsed .footer {
    margin-left: var(--layout-sidebar-collapsed);
    width: calc(100% - var(--layout-sidebar-collapsed));
}

@media (max-width: 768px) {
    .footer {
        margin-left: 0 !important;
        width: 100% !important;
        padding: var(--spacing-3xl) var(--spacing-lg) 72px;
    }
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 1.5fr 2fr 1.4fr;
    gap: var(--spacing-xl);
}

/* 公司信息模块 */
.footer-company {
    /* 无额外样式 */
}

.footer-section.center-content {
    text-align: center;
}

.footer-section.center-content .footer-links {
    justify-content: center;
    text-align: left;
    display: inline-block;
}

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: white;
}

.footer-logo i {
    margin-right: var(--spacing-sm);
    color: #6595ff;
}

.footer-description {
    font-size: var(--font-size-md);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    max-width: 100%;
}

.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.social-link {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--animation-speed-normal), transform var(--animation-speed-normal), border-color var(--animation-speed-normal);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.social-link:hover {
    background: var(--color-primary);
    transform: translateY(-2px);
    border-color: var(--color-primary);
}

.footer-title {
    color: white;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    margin-bottom: 15px;
    position: relative;
    padding-bottom: var(--spacing-sm);
    display: inline-block;
}

.footer-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    border-radius: 3px;
    transition: width 0.3s ease;
}

.footer-section:hover .footer-title::after {
    width: 60px;
}

.footer-section.center-content .footer-title {
    display: block;
    text-align: center;
}

.footer-section.center-content .footer-title::after {
    left: 50%;
    transform: translateX(-50%);
}

/* 合并二维码模块样式 */
.footer-qr-combined {
    text-align: left;
}

.footer-qr-combined .footer-title {
    display: inline-block;
    text-align: left;
}

.qr-row {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
    flex-wrap: wrap;
}

.qr-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    min-width: 0;
}

.qr-img {
    width: 120px;
    height: 120px;
    flex-shrink: 0;
    max-width: none;
    min-width: 0;
    object-fit: contain;
    background-color: #ffffff;
    border-radius: var(--radius-lg);
    border: 2px solid rgba(255, 255, 255, 0.15);
    padding: 5px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, border-color 0.3s ease;
    display: block;
}

.qr-img:hover {
    transform: scale(1.05);
    border-color: var(--color-primary);
}

.whatsapp-qr:hover {
    border-color: #25D366;
}

.official-qr:hover {
    border-color: var(--color-primary);
}

.qr-label {
    font-size: 12px;
    color: var(--color-footer-text);
    margin-top: var(--spacing-sm);
    opacity: 0.9;
    letter-spacing: 0.3px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-md);
}

.footer-links a {
    color: var(--color-footer-text);
    font-size: 13px;
    transition: color var(--animation-speed-fast), transform var(--animation-speed-fast);
    display: flex;
    align-items: center;
}

.footer-links a:hover {
    color: white;
    transform: translateX(4px);
}

.footer-section.center-content .footer-links a:hover {
    transform: none;
}

.footer-links a i {
    margin-right: var(--spacing-xs);
    font-size: 11px;
    color: #b7c6e7;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    font-size: 13px;
    color: var(--color-footer-text);
}

.contact-item i {
    width: 16px;
    text-align: center;
    color: #b7c6e7;
    margin-top: 2px;
    font-size: 13px;
}

.contact-item a {
    color: var(--color-footer-text);
    transition: color var(--animation-speed-normal);
}

.contact-item a:hover {
    color: var(--color-primary);
}

.footer-contact-form p {
    margin-bottom: var(--spacing-md);
    font-size: 13px;
    line-height: 1.5;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contact-input, 
.contact-textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: var(--font-size-sm);
    outline: none;
    transition: border-color var(--animation-speed-normal), background-color var(--animation-speed-normal);
    box-sizing: border-box;
}

/* 统一文本域高度与其他输入框一致 */
.contact-textarea {
    min-height: 40px;
    resize: vertical;
}

.contact-input:focus, 
.contact-textarea:focus {
    border-color: var(--color-primary);
    background: rgba(255, 255, 255, 0.15);
}

.contact-btn {
    background: var(--color-primary);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: background-color var(--animation-speed-normal);
    width: 100%;
    font-size: 13px;
}

.contact-btn:hover {
    background: var(--color-secondary);
}

.footer-bottom {
    max-width: 1400px;
    margin: 3px auto 0;
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
}

.copyright {
    font-size: 13px;
    color: var(--color-footer-text);
}

.footer-nav {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.footer-nav a {
    color: var(--color-footer-text);
    font-size: var(--font-size-sm);
    transition: color var(--animation-speed-fast);
    position: relative;
}

.footer-nav a:hover {
    color: white;
}

.footer-nav a.about-us {
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
}

.footer-nav a.about-us:hover {
    color: white;
}

.footer-nav a.about-us::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -3px;
    width: 100%;
    height: 2px;
    background: var(--color-primary);
}

.footer-links-section {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-links-container {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    width: 100%;
}

.footer-links-label {
    font-size: 13px;
    color: var(--color-footer-text);
    font-weight: var(--font-weight-medium);
    white-space: nowrap;
}

.footer-link {
    color: var(--color-footer-text);
    font-size: 13px;
    text-decoration: none;
    transition: color var(--animation-speed-fast);
    white-space: nowrap;
    position: relative;
    padding: var(--spacing-xs) 0;
}

.footer-link:hover {
    color: white;
}

.footer-link::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 1px;
    background-color: var(--color-primary);
    transform: scaleX(0);
    transition: transform var(--animation-speed-normal) ease;
}

.footer-link:hover::after {
    transform: scaleX(1);
}

/* ===== 验证码容器样式（始终同行） ===== */
.contact-code-wrapper {
    display: flex;
    gap: 8px;
    align-items: center;
    width: 100%;
    flex-wrap: nowrap; /* 强制不换行，确保输入框和图片同行 */
}

/* 验证码输入框：PC端宽度50% */
.code-input {
    width: 50% !important;
    flex-shrink: 1;
    min-width: 0; /* 允许缩小 */
}

.contact-code-wrapper img {
    height: 40px;
    width: auto;
    border-radius: var(--radius-sm);
    cursor: pointer;
    flex-shrink: 0;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: #fff;
    padding: 2px;
    transition: border-color var(--animation-speed-normal);
}

.contact-code-wrapper img:hover {
    border-color: var(--color-primary);
}

/* 移动端适配：输入框宽度自适应，依然同行 */
@media (max-width: 768px) {
    .code-input {
        width: calc(100% - 48px) !important; /* 减去图片宽度+间距，确保同行 */
        flex: 1;
    }
    .contact-code-wrapper img {
        height: 38px; /* 略缩小，保持比例 */
    }
}

@media (max-width: 480px) {
    .code-input {
        width: calc(100% - 44px) !important; /* 进一步缩小间距 */
    }
    .contact-code-wrapper img {
        height: 36px;
    }
}

/* ===== 移动端响应式 ===== */
@media (max-width: 992px) {
    .footer-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .footer-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .footer-section,
    .footer-section.center-content {
        text-align: left !important;
    }

    .footer-section.center-content .footer-title::after,
    .footer-title::after {
        left: 0 !important;
        transform: none !important;
    }

    .footer-section.center-content .footer-links {
        display: block;
        text-align: left;
        justify-content: flex-start;
    }

    .footer-links li {
        text-align: left;
    }

    .footer-links a {
        justify-content: flex-start;
    }

    .contact-info {
        align-items: flex-start;
    }

    .footer-contact-form {
        text-align: left;
    }

    .footer-qr-combined {
        text-align: left !important;
    }
    .qr-row {
        justify-content: flex-start;
    }
    .qr-item {
        align-items: flex-start;
        text-align: left;
    }
    .qr-img {
        width: 100px;
        height: 100px;
    }
    .qr-label {
        font-size: 11px;
    }

    .footer-links-section {
        margin-bottom: var(--spacing-lg);
        padding-top: var(--spacing-lg);
    }

    .footer-links-container {
        flex-direction: row;
        align-items: center;
        gap: var(--spacing-md);
        overflow-x: auto;
        padding-bottom: var(--spacing-xs);
        scrollbar-width: thin;
        scrollbar-color: rgba(255,255,255,0.3) transparent;
    }

    .footer-links-container::-webkit-scrollbar {
        height: 4px;
    }

    .footer-links-container::-webkit-scrollbar-track {
        background: transparent;
    }

    .footer-links-container::-webkit-scrollbar-thumb {
        background-color: rgba(255,255,255,0.3);
        border-radius: 2px;
    }

    .footer-links-container::-webkit-scrollbar-thumb:hover {
        background-color: rgba(255,255,255,0.5);
    }

    .footer-links-label {
        margin-bottom: 0;
        margin-right: var(--spacing-sm);
        flex-shrink: 0;
    }

    .footer-link {
        padding: var(--spacing-xs) var(--spacing-sm);
        display: inline-block;
        width: auto;
        flex-shrink: 0;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .footer-links-section {
        padding: 0 var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }

    .footer-links-container {
        gap: var(--spacing-sm);
        padding-bottom: var(--spacing-xs);
    }

    .footer-links-label {
        font-size: 12px;
        margin-right: var(--spacing-xs);
    }

    .footer-link {
        font-size: 12px;
        padding: var(--spacing-xs) var(--spacing-xs);
    }

    .qr-img {
        width: 90px;
        height: 90px;
    }
}

@media (max-width: 360px) {
    .footer-links-container {
        gap: 8px;
    }
    .footer-links-label {
        font-size: 11px;
        margin-right: 6px;
    }
    .footer-link {
        font-size: 11px;
        padding: 2px 6px;
    }
    .qr-img {
        width: 80px;
        height: 80px;
    }
}