/* ============================================
   VORS 在线商城 - 组件样式
   按钮、卡片、表单等通用组件
   ============================================ */

/* ---- 购物车侧边栏 ---- */

.cart-sidebar {
    position: fixed;
    top: 0;
    right: -400px;
    width: 400px;
    height: 100vh;
    background: var(--color-bg-card);
    z-index: 2000;
    transition: right var(--transition-base);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    border-left: 1px solid var(--color-border-light);
}

.cart-sidebar.active {
    right: 0;
}

.cart-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.cart-overlay.active {
    opacity: 1;
    visibility: visible;
}

.cart-header {
    padding: var(--space-xl);
    border-bottom: 1px solid var(--color-border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.cart-close {
    font-size: 2rem;
    color: var(--color-text-muted);
    cursor: pointer;
    line-height: 1;
    transition: color var(--transition-fast);
}

.cart-close:hover {
    color: var(--color-primary);
}

.cart-items {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-lg);
}

.cart-empty {
    text-align: center;
    padding: var(--space-4xl) 0;
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: var(--space-md);
    opacity: 0.2;
}

.cart-item {
    display: flex;
    justify-content: space-between;
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    border: 1px solid var(--color-border-light);
}

.cart-item-info {
    flex: 1;
}

.cart-item-title {
    font-weight: 600;
    font-size: var(--text-base);
    margin-bottom: 4px;
}

.cart-item-pn {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    margin-bottom: var(--space-sm);
}

.cart-item-price {
    color: var(--color-primary);
    font-weight: 700;
    font-family: var(--font-heading);
}

.cart-item-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-md);
}

.quantity-control {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background: var(--color-bg-input);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border-light);
}

.quantity-control button {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.quantity-control button:hover {
    color: var(--color-primary);
}

.cart-item-remove {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    text-decoration: underline;
    transition: color var(--transition-fast);
}

.cart-item-remove:hover {
    color: var(--color-primary);
}

.cart-footer {
    padding: var(--space-xl);
    border-top: 1px solid var(--color-border-light);
    background: rgba(0, 0, 0, 0.2);
}

.cart-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
}

.total-amount {
    font-size: var(--text-2xl);
    font-weight: 800;
    color: var(--color-primary);
    font-family: var(--font-heading);
}

/* 购物车浮动按钮 - 放在左下角，避免与右下角 WhatsApp 按钮重叠 */
.cart-float-btn-container {
    position: fixed;
    bottom: 88px;
    left: 24px;
    z-index: 1000;
}

.cart-float-btn {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(230, 57, 70, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    position: relative;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.cart-float-btn:hover {
    transform: scale(1.1) rotate(-5deg);
    box-shadow: 0 6px 25px rgba(230, 57, 70, 0.6);
    border-color: #fff;
}

.cart-float-btn .cart-badge {
    position: absolute;
    top: -2px;
    right: -2px;
    background: #fff;
    color: var(--color-primary);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    font-size: 12px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    border: 2px solid var(--color-primary);
}

/* 隐藏导航栏内的购物车（使其变为浮动形式） */
.main-header .cart-btn-container {
    display: none;
}

/* 响应式适配 */
@media (max-width: 768px) {
    .cart-float-btn-container {
        bottom: 80px;
        left: 16px;
    }
    
    .cart-float-btn {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
}

/* ---- 按钮组件 ---- */

/* 主按钮 - 红色 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 12px 28px;
    font-family: var(--font-heading);
    font-size: var(--text-base);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    border: none;
    white-space: nowrap;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    box-shadow: 0 4px 15px rgba(230, 57, 70, 0.3);
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    color: #fff;
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background: var(--color-primary);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-lg {
    padding: 16px 36px;
    font-size: var(--text-lg);
}

.btn-sm {
    padding: 8px 18px;
    font-size: var(--text-sm);
}

/* ---- 卡片组件 ---- */

.card {
    background: var(--gradient-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    position: relative;
}

.card:hover {
    border-color: rgba(230, 57, 70, 0.4);
    box-shadow: var(--shadow-glow), var(--shadow-md);
    transform: translateY(-4px);
}

/* JS动态生成的产品卡片样式 */
.product-card {
    background: var(--gradient-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    position: relative;
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow), var(--shadow-lg);
    transform: translateY(-8px);
}

.product-card-img {
    width: 100%;
    height: 200px; /* 稍微缩小高度，留出更多空间给文字 */
    position: relative;
    overflow: hidden;
    background: #f8f9fa; /* 改为极浅灰色，兼容白色和深色背景图 */
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--color-border-light);
}

.product-img-src {
    max-width: 95%;
    max-height: 95%;
    object-fit: contain;
    transition: transform 0.5s ease;
    filter: drop-shadow(0 5px 15px rgba(0,0,0,0.1)); /* 给产品图增加立体感 */
}

.product-card:hover .product-img-src {
    transform: scale(1.08);
}

.img-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--gradient-card); /* 占位符保持深色工业感 */
    color: var(--color-text-muted);
    transition: all var(--transition-base);
}

.product-card:hover .img-placeholder {
    transform: scale(1.05);
}

.placeholder-icon {
    font-size: 3.5rem;
    margin-bottom: var(--space-sm);
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.5));
    opacity: 0.8;
}

.placeholder-brand {
    font-size: 0.8rem;
    font-family: var(--font-heading);
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: 3px;
    text-transform: uppercase;
    opacity: 0.6;
}

.product-card-body {
    padding: var(--space-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-part-number {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    background: rgba(255, 255, 255, 0.05);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    align-self: flex-start;
    margin-bottom: var(--space-sm);
    border: 1px solid var(--color-border-light);
}

.product-name {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
    transition: color var(--transition-fast);
    line-height: 1.3;
}

.product-card:hover .product-name {
    color: var(--color-primary);
}

.product-model {
    font-size: var(--text-xs);
    color: var(--color-secondary);
    margin-bottom: var(--space-md);
    font-weight: 500;
}

.product-desc {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
    flex: 1;
}

.product-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border-light);
    margin-top: auto;
}

.product-price {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-primary);
}

.product-category-tag {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    background: var(--color-bg-input);
    padding: 4px 10px;
    border-radius: var(--radius-full);
}

.card-img {
    width: 100%;
    height: 200px;
    position: relative;
}

.card-body {
    padding: var(--space-lg);
}

.card-title {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
    transition: color var(--transition-fast);
}

.card:hover .card-title {
    color: var(--color-primary);
}

.card-text {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border-light);
}

.card-price {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-primary);
}

.card-part-number {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    background: var(--color-bg-input);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
}

/* ---- 表单组件 ---- */

.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--color-bg-input);
    border: 1px solid rgba(255, 255, 255, 0.15); /* 提升表单边框可见度 */
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: var(--text-base);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--color-primary);
    background: var(--color-bg-dark);
    box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.15);
}

.form-input::placeholder {
    color: var(--color-text-muted);
}

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

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236b7280' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
    cursor: pointer;
}

/* ---- 面包屑 ---- */

.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-lg) 0;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.breadcrumb a {
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

.breadcrumb .separator {
    color: var(--color-text-muted);
}

.breadcrumb .current {
    color: var(--color-text-primary);
}

/* ---- 分页 ---- */

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-2xl) 0;
}

.pagination-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    font-weight: 600;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.pagination-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.pagination-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.pagination-btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ---- 标签/筛选标签 ---- */

.tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    background: var(--color-bg-input);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.tag:hover, .tag.active {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(230, 57, 70, 0.1);
}

/* ---- 加载动画 ---- */

.skeleton {
    background: linear-gradient(90deg, var(--color-bg-card) 25%, var(--color-bg-card-hover) 50%, var(--color-bg-card) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ---- 空状态 ---- */

.empty-state {
    text-align: center;
    padding: var(--space-4xl) var(--space-xl);
    color: var(--color-text-muted);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
    opacity: 0.5;
}

.empty-state-text {
    font-size: var(--text-lg);
    margin-bottom: var(--space-md);
}

/* ---- Toast 通知 ---- */

.toast-container {
    position: fixed;
    top: calc(var(--header-height) + var(--space-lg));
    right: var(--space-xl);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.toast {
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: toast-in 0.3s ease-out;
    min-width: 300px;
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ---- 语言切换器 ---- */
.lang-switcher {
    position: relative;
    margin-right: var(--space-lg);
    cursor: pointer;
    font-family: var(--font-heading);
    display: flex;
    align-items: center;
    height: var(--header-height);
    align-self: center;
    padding-top: 4px; /* 视觉上往下微调 */
}

.lang-current {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 8px 20px; /* 放大点击区域 */
    background: var(--color-secondary); /* 换成橘黄色 */
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md); /* 圆角稍微加大 */
    transition: all var(--transition-fast);
    min-width: 100px; /* 稍微加宽 */
    box-shadow: 0 2px 10px rgba(255, 107, 53, 0.2); /* 添加微弱发光 */
}

.lang-current:hover {
    background: var(--color-secondary-hover);
    transform: translateY(1px);
}

.lang-flag {
    font-size: 1.3rem; /* 国旗放大 */
}

.lang-code {
    font-size: var(--text-base); /* 文字放大 */
    font-weight: 800;
    color: #fff; /* 橘色背景配白色文字更清晰 */
}

.lang-dropdown {
    position: absolute;
    top: calc(var(--header-height) - 10px); /* 紧贴导航栏底部向上一点 */
    right: 0;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-base);
    z-index: 1001;
    overflow: hidden;
}

.lang-switcher.active .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 15px;
    transition: all var(--transition-fast);
    color: var(--color-text-secondary);
}

.lang-option:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-primary);
}

.lang-option.active {
    background: rgba(230, 57, 70, 0.1);
    color: var(--color-primary);
    font-weight: 700;
}

.lang-name {
    font-size: var(--text-sm);
}

@media (max-width: 768px) {
    .lang-switcher {
        margin-right: var(--space-sm);
    }
    .lang-current {
        padding: 4px 8px;
    }
    .lang-code {
        display: none;
    }
}