/* 网格布局 */
.grid {
    display: grid;
}

.grid-cols-1 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
}

.gap-4 {
    gap: 1rem;
}

.gap-6 {
    gap: 1.5rem;
}

.gap-8 {
    gap: 2rem;
}

@media (min-width: 576px) {
    .sm\:grid-cols-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 768px) {
    .md\:grid-cols-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
    
    .md\:grid-cols-4 {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

@media (min-width: 992px) {
    .lg\:grid-cols-4 {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

@media (min-width: 1200px) {
    .xl\:grid-cols-5 {
        grid-template-columns: repeat(5, minmax(0, 1fr));
    }
}

/* 弹性布局 */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

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

.justify-between {
    justify-content: space-between;
}

.justify-center {
    justify-content: center;
}

.flex-wrap {
    flex-wrap: wrap;
}

.gap-4 {
    gap: 1rem;
}

.gap-6 {
    gap: 1.5rem;
}

@media (min-width: 576px) {
    .sm\:flex-row {
        flex-direction: row;
    }
}

@media (min-width: 768px) {
    .md\:flex-row {
        flex-direction: row;
    }
    
    .md\:items-center {
        align-items: center;
    }
    
    .md\:items-start {
        align-items: flex-start;
    }
    
    .md\:justify-between {
        justify-content: space-between;
    }
}

@media (min-width: 992px) {
    .lg\:flex-row {
        flex-direction: row;
    }
}

/* 间距 */
.mb-2 {
    margin-bottom: 0.5rem;
}

.mb-3 {
    margin-bottom: 0.75rem;
}

.mb-4 {
    margin-bottom: 1rem;
}

.mb-6 {
    margin-bottom: 1.5rem;
}

.mb-8 {
    margin-bottom: 2rem;
}

.mb-10 {
    margin-bottom: 2.5rem;
}

.mb-12 {
    margin-bottom: 3rem;
}

.mt-2 {
    margin-top: 0.5rem;
}

.mt-3 {
    margin-top: 0.75rem;
}

.mt-4 {
    margin-top: 1rem;
}

.mt-6 {
    margin-top: 1.5rem;
}

.mt-8 {
    margin-top: 2rem;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.p-2 {
    padding: 0.5rem;
}

.p-3 {
    padding: 0.75rem;
}

.p-4 {
    padding: 1rem;
}

.p-6 {
    padding: 1.5rem;
}

.p-8 {
    padding: 2rem;
}

.p-10 {
    padding: 2.5rem;
}

.p-12 {
    padding: 3rem;
}

.py-1 {
    padding-top: 0.25rem;
    padding-bottom: 0.25rem;
}

.py-2 {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.py-3 {
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
}

.py-4 {
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.px-3 {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
}

.px-4 {
    padding-left: 1rem;
    padding-right: 1rem;
}

.px-6 {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

.px-8 {
    padding-left: 2rem;
    padding-right: 2rem;
}

.px-10 {
    padding-left: 2.5rem;
    padding-right: 2.5rem;
}

/* 文字样式 */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.text-xs {
    font-size: 0.75rem;
}

.text-sm {
    font-size: 0.875rem;
}

.text-md {
    font-size: 1rem;
}

.text-lg {
    font-size: 1.125rem;
}

.text-xl {
    font-size: 1.25rem;
}

.text-2xl {
    font-size: 1.5rem;
}

.text-3xl {
    font-size: 1.875rem;
}

.text-4xl {
    font-size: 2.25rem;
}

.text-5xl {
    font-size: 3rem;
}

.font-bold {
    font-weight: 700;
}

.font-medium {
    font-weight: 500;
}

.font-semibold {
    font-weight: 600;
}

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

.text-primary-dark {
    color: var(--bs-primary-dark);
}

.text-secondary {
    color: var(--bs-secondary);
}

.text-success {
    color: var(--bs-success);
}

.text-warning {
    color: var(--bs-warning);
}

.text-danger {
    color: var(--bs-danger);
}

.text-dark {
    color: var(--bs-dark);
}

.text-gray-500 {
    color: var(--bs-gray-500);
}

.text-gray-600 {
    color: var(--bs-gray-600);
}

.text-gray-700 {
    color: var(--bs-gray-700);
}

.text-gray-300 {
    color: var(--bs-gray-300);
}

.text-white {
    color: #fff;
}

.leading-relaxed {
    line-height: 1.625;
}

/* 背景色 */
.bg-white {
    background-color: #fff;
}

.bg-gray-100 {
    background-color: var(--bs-gray-100);
}

.bg-gray-200 {
    background-color: var(--bs-gray-200);
}

.bg-primary {
    background-color: var(--bs-primary);
}

.bg-primary\/5 {
    background-color: rgba(0, 123, 255, 0.05);
}

.bg-primary\/10 {
    background-color: rgba(0, 123, 255, 0.1);
}

.bg-secondary {
    background-color: var(--bs-secondary);
}

.bg-success {
    background-color: var(--bs-success);
}

/* 边框 */
.border {
    border: 1px solid var(--bs-gray-300);
}

.border-gray-200 {
    border-color: var(--bs-gray-200);
}

.border-gray-300 {
    border-color: var(--bs-gray-300);
}

.border-primary {
    border-color: var(--bs-primary);
}

.border-transparent {
    border-color: transparent;
}

.border-b {
    border-bottom: 1px solid var(--bs-gray-300);
}

/* 圆角 */
.rounded {
    border-radius: 0.25rem;
}

.rounded-lg {
    border-radius: 0.5rem;
}

.rounded-xl {
    border-radius: 0.75rem;
}

.rounded-2xl {
    border-radius: 1rem;
}

.rounded-full {
    border-radius: 9999px;
}

.rounded-l-md {
    border-top-left-radius: 0.375rem;
    border-bottom-left-radius: 0.375rem;
}

.rounded-r-md {
    border-top-right-radius: 0.375rem;
    border-bottom-right-radius: 0.375rem;
}

/* 阴影 */
.shadow {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.shadow-sm {
    box-shadow: 0 0.0625rem 0.125rem rgba(0, 0, 0, 0.05);
}

.shadow-md {
    box-shadow: 0 0.25rem 0.5rem rgba(0, 0, 0, 0.15);
}

.shadow-lg {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.shadow-xl {
    box-shadow: 0 1rem 1.5rem rgba(0, 0, 0, 0.15);
}

/* 过渡效果 */
.transition-all {
    transition: all 0.3s ease;
}

.transition-colors {
    transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

.transition-transform {
    transition-property: transform;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 300ms;
}

/* 变换 */
.transform {
    transform: translateZ(0);
}

.hover\:-translate-y-1:hover {
    transform: translateY(-0.25rem);
}

.hover\:-translate-y-2:hover {
    transform: translateY(-0.5rem);
}

.hover\:scale-105:hover {
    transform: scale(1.05);
}

.hover\:scale-110:hover {
    transform: scale(1.1);
}

/* 悬停效果 */
.hover\:text-primary:hover {
    color: var(--bs-primary);
}

.hover\:bg-primary:hover {
    background-color: var(--bs-primary);
}

.hover\:bg-primary\/5:hover {
    background-color: rgba(0, 123, 255, 0.05);
}

.hover\:bg-gray-50:hover {
    background-color: var(--bs-gray-100);
}

.hover\:shadow:hover {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.hover\:shadow-md:hover {
    box-shadow: 0 0.25rem 0.5rem rgba(0, 0, 0, 0.15);
}

.hover\:shadow-lg:hover {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.hover\:shadow-xl:hover {
    box-shadow: 0 1rem 1.5rem rgba(0, 0, 0, 0.15);
}

/* 显示/隐藏 */
.hidden {
    display: none;
}

/* 光标 */
.cursor-pointer {
    cursor: pointer;
}

/* 文本溢出 */
.text-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 响应式断点显示/隐藏 */
@media (max-width: 576px) {
    .sm\:hidden {
        display: none;
    }
    
    .sm\:block {
        display: block;
    }
}

@media (max-width: 768px) {
    .md\:hidden {
        display: none;
    }
    
    .md\:block {
        display: block;
    }
}

@media (max-width: 992px) {
    .lg\:hidden {
        display: none;
    }
    
    .lg\:block {
        display: block;
    }
}

/* 容器 */
.container {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

/* 辅助类 */
.text-shadow {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.text-shadow-lg {
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.12), 0 2px 4px rgba(0, 0, 0, 0.08);
}

.bg-blur {
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.border-glow {
    box-shadow: 0 0 0 1px rgba(0, 123, 255, 0.25), 0 0 0 4px rgba(0, 123, 255, 0.1);
}

/* 宽度和高度 */
.w-100 {
    width: 100%;
}

.h-100 {
    height: 100%;
}

.h-48 {
    height: 12rem;
}

.object-cover {
    object-fit: cover;
}

/* 最大宽度 */
.max-w-md {
    max-width: 28rem;
}

.max-w-2xl {
    max-width: 40rem;
}

/* 响应式调整 */
@media (max-width: 576px) {
    .text-xs {
        font-size: 0.625rem;
    }
    
    .text-sm {
        font-size: 0.75rem;
    }
    
    .text-md {
        font-size: 0.875rem;
    }
    
    .text-lg {
        font-size: 1rem;
    }
    
    .text-xl {
        font-size: 1.125rem;
    }
    
    .text-2xl {
        font-size: 1.25rem;
    }
    
    .text-3xl {
        font-size: 1.5rem;
    }
    
    .text-4xl {
        font-size: 1.75rem;
    }
    
    .text-5xl {
        font-size: 2rem;
    }
    
    .p-2 {
        padding: 0.25rem;
    }
    
    .p-3 {
        padding: 0.5rem;
    }
    
    .p-4 {
        padding: 0.75rem;
    }
    
    .p-6 {
        padding: 1rem;
    }
    
    .p-8 {
        padding: 1.5rem;
    }
    
    .p-10 {
        padding: 2rem;
    }
    
    .p-12 {
        padding: 2.5rem;
    }
}