/* ================================================
   通关参数查询工具专用样式
   ================================================ */

/* 主容器 - 与税则目录保持一致 */
.custparam-container {
    max-width: 1200px;
    margin: 1px;
    padding: 0;
}

/* 页面标题区域 - 与税则目录样式保持一致 */
.page-header {
    text-align: center;
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--primary-green), var(--primary-green-light));
    border-radius: var(--radius-xl);
    color: white;
    box-shadow: var(--shadow-lg);
}

.page-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.page-title i {
    font-size: 2rem;
    opacity: 0.9;
}

.page-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    margin: 0;
    font-weight: 400;
}

/* 参数列表区域 */
.param-list-section {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
    overflow: hidden;
}


/* 参数列表 */
.param-list {
    list-style: none;
    padding: 1.5rem;
    margin: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
}

.param-item {
    margin: 0;
}

.param-link {
    display: flex;
    align-items: center;
    padding: 0.875rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.param-link:hover {
    background: var(--primary-green-alpha);
    border-color: var(--primary-green);
    color: var(--primary-green-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.param-link:active {
    transform: translateY(0);
}

.param-link i:first-child {
    color: var(--primary-green);
    font-size: 1.1rem;
    margin-right: 1rem;
    transition: all var(--transition-normal);
}

.param-link:hover i:first-child {
    color: var(--primary-green-dark);
    transform: scale(1.1);
}

.param-link span {
    flex: 1;
    font-size: 1rem;
    line-height: 1.4;
}

.param-link i:last-child {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-left: 1rem;
    transition: all var(--transition-normal);
    opacity: 0.6;
}

.param-link:hover i:last-child {
    color: var(--primary-green-dark);
    transform: translateX(4px);
    opacity: 1;
}

/* 波纹效果 */
.param-link::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(74, 156, 1, 0.1);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.3s ease, height 0.3s ease;
    z-index: 0;
}

.param-link:hover::before {
    width: 300px;
    height: 300px;
}

.param-link * {
    position: relative;
    z-index: 1;
}

/* 说明区域 */
.param-description {
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(74, 156, 1, 0.03) 0%, rgba(74, 156, 1, 0.01) 100%);
    border-top: 1px solid var(--border-light);
}

.param-description p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    text-align: justify;
}

.param-description strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* 响应式设计 */
@media (min-width: 768px) {
    .param-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.875rem;
        padding: 2rem;
    }
}

@media (min-width: 1024px) {
    .param-list {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
        padding: 2.5rem;
    }
}

@media (min-width: 1200px) {
    .param-list {
        grid-template-columns: repeat(4, 1fr);
        gap: 1.25rem;
    }
}

/* 暗色主题适配 */
[data-theme="dark"] .param-link {
    background: var(--bg-tertiary);
    border-color: var(--border-medium);
    color: var(--text-primary);
}

[data-theme="dark"] .param-link:hover {
    background: rgba(74, 156, 1, 0.15);
    border-color: var(--primary-green-light);
    color: var(--primary-green-light);
}

[data-theme="dark"] .param-link:hover i:first-child {
    color: var(--primary-green-light);
}

[data-theme="dark"] .param-link:hover i:last-child {
    color: var(--primary-green-light);
}

/* 加载动画 */
@keyframes param-item-fade-in {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.param-item {
    animation: param-item-fade-in 0.5s ease-out forwards;
}

.param-item:nth-child(1) { animation-delay: 0.1s; }
.param-item:nth-child(2) { animation-delay: 0.2s; }
.param-item:nth-child(3) { animation-delay: 0.3s; }
.param-item:nth-child(4) { animation-delay: 0.4s; }
.param-item:nth-child(5) { animation-delay: 0.5s; }

/* 移动端优化 */
@media (max-width: 767px) {
    .custparam-container {
        padding: 0 0.75rem;
    }
    
    .page-header {
        padding: 1.25rem;
        margin-bottom: 1rem;
    }
    
    .page-title {
        font-size: 1.75rem;
        gap: 0.5rem;
    }
    
    .page-title i {
        font-size: 1.5rem;
    }
    
    .page-subtitle {
        font-size: 1rem;
    }
    
    .param-list {
        padding: 1.25rem;
        gap: 0.6rem;
    }
    
    .param-link {
        padding: 0.75rem;
        font-size: 0.95rem;
    }
    
    .param-link i:first-child {
        font-size: 1rem;
        margin-right: 0.75rem;
    }
    
    .param-description {
        padding: 1.25rem;
    }
}

/* 焦点状态 */
.param-link:focus {
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    .param-link {
        border-width: 3px;
    }
    
    .param-link:hover {
        border-width: 3px;
    }
}