/* 移动端自定义样式 */

/* 底部导航栏 */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    border-top: 1px solid #e5e7eb;
    z-index: 1000;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8px 0;
    color: #6b7280;
    text-decoration: none;
    transition: color 0.3s;
}

.bottom-nav-item.active {
    color: #2563eb;
}

.bottom-nav-item i {
    font-size: 20px;
    margin-bottom: 4px;
}

.bottom-nav-item span {
    font-size: 12px;
}

/* 搜索栏 */
.search-bar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: white;
    padding: 12px 16px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

/* 产品卡片 */
.product-card-mobile {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s;
}

.product-card-mobile:active {
    transform: scale(0.98);
}

/* 供应商卡片 */
.supplier-card-mobile {
    background: white;
    border-radius: 8px;
    padding: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* 聊天按钮 */
.chat-button-mobile {
    position: fixed;
    bottom: 80px;
    right: 16px;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
    z-index: 999;
    border: none;
    cursor: pointer;
    transition: transform 0.3s;
}

.chat-button-mobile:active {
    transform: scale(0.95);
}

/* 聊天窗口 */
.chat-window-mobile {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 70vh;
    background: white;
    border-radius: 16px 16px 0 0;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    transform: translateY(100%);
    transition: transform 0.3s ease-in-out;
}

.chat-window-mobile.show {
    transform: translateY(0);
}

.chat-header-mobile {
    padding: 16px;
    border-bottom: 1px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f9fafb;
}

.chat-messages-mobile {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
}

.chat-input-mobile {
    padding: 12px 16px;
    border-top: 1px solid #e5e7eb;
    display: flex;
    gap: 8px;
    background: white;
}

.chat-input-mobile input {
    flex: 1;
    padding: 10px 16px;
    border: 1px solid #e5e7eb;
    border-radius: 20px;
    outline: none;
}

.chat-input-mobile button {
    width: 40px;
    height: 40px;
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 遮罩层 */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    display: none;
}

.overlay.show {
    display: block;
}