/* 全局样式 */
.xb_express_container {
    max-width: 900px;
    margin: auto;
    padding: 24px;
    background: linear-gradient(to right, #a8e063, #56ab2f);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}


/* 标题样式 */
.xb_express_title {
    color: white;
    text-align: center;
    margin-bottom: 24px;
    font-size: 28px;
    font-weight: 700;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2); /* 增强深色背景下的辨识度 */
    letter-spacing: 0.5px; /* 增加字母间距提升可读性 */
}

.xb_express_history_title,
.xb_express_result_title {
    color: #1e3a8a;
    text-align: center;
    margin-bottom: 24px;
    font-size: 28px;
    font-weight: 700;
    line-height: 1.2;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

/* 表单样式 */
.xb_express_form {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    align-items: flex-end;
    background: #ffffff;
    padding: 16px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.xb_express_form_group {
    flex: 0 0 200px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.xb_express_form_group_input {
    flex: 1;
}

.xb_express_label {
    font-size: 14px;
    color: #1f2937;
    font-weight: 500;
}

.xb_express_select {
    width: 100%;
    max-width: 200px;
    padding: 12px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 14px;
    background: #ffffff;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.xb_express_input {
    width: 100%;
    padding: 12px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 14px;
    background: #ffffff;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.xb_express_select:focus,
.xb_express_input:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.xb_express_button {
    background: linear-gradient(to bottom, #3b82f6, #2563eb);
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: transform 0.2s, box-shadow 0.2s;
}

.xb_express_button:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

.xb_express_button:disabled {
    background: #9ca3af;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* 消息提示样式 */
.xb_express_message {
    margin-bottom: 24px;
    padding: 12px;
    border-radius: 6px;
    display: none;
    font-size: 14px;
    text-align: center;
    animation: fadeIn 0.3s ease-in;
}

.xb_express_message.error {
    background-color: #fee2e2;
    color: #dc2626;
    display: block;
}

.xb_express_message.success {
    background-color: #d1fae5;
    color: #047857;
    display: block;
}

/* 查询结果样式 */
.xb_express_result {
    background: #ffffff;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 24px;
    display: none;
    font-size: 14px;
    border: 1px solid #e5e7eb;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.xb_express_result_item {
    padding: 12px 0;
    border-bottom: 1px solid #e5e7eb;
    transition: background-color 0.2s;
}

.xb_express_result_item:hover {
    background-color: #f8fafc;
}

.xb_express_result_item:last-child {
    border-bottom: none;
}

/* 查询历史样式 */
.xb_express_history {
    background: #ffffff;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.xb_express_history_list {
    list-style: none;
    padding: 0;
}

.xb_express_history_item {
    padding: 12px;
    background-color: #f8fafc;
    margin-bottom: 8px;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.2s;
    font-size: 14px;
}

.xb_express_history_item:hover {
    background-color: #e5e7eb;
    transform: translateX(4px);
}

/* 公告样式 */
.xb_express_announcement {
    margin-top: 24px;
    padding: 16px;
    background: #ffffff;
    border-radius: 8px;
    font-size: 14px;
    line-height: 1.6;
    border: 1px solid #e5e7eb;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.xb_express_announcement img {
    max-width: 300px !important;
    max-height: 200px !important;
    object-fit: contain;
    display: block;
    margin: 8px 0;
}

/* 动画 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 响应式设计 */
@media (max-width: 600px) {
    .xb_express_container {
        padding: 16px;
        margin: 10px;
    }

    .xb_express_form {
        flex-direction: column;
        gap: 12px;
        padding: 12px;
    }
    
    .xb_express_form_group,
    .xb_express_form_group_input {
        flex: 1;
        max-width: 100%;
    }

    .xb_express_select {
        max-width: 100%;
    }

    .xb_express_button {
        padding: 12px;
        width: 100%;
        align-self: center;
    }
}