/* 简化版 Tailwind CSS - 只包含项目用到的样式 */

/* 基础样式 */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif; line-height: 1.5; color: #374151; background-color: #f9fafb; }

/* 容器 */
.container { max-width: 1280px; margin-left: auto; margin-right: auto; padding-left: 1rem; padding-right: 1rem; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* 间距 */
.min-h-screen { min-height: 100vh; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.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; }
.py-1.5 { padding-top: 0.375rem; padding-bottom: 0.375rem; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.py-0.5 { padding-top: 0.125rem; padding-bottom: 0.125rem; }
.mb-1 { margin-bottom: 0.25rem; }
.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; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-12 { margin-top: 3rem; }
.mr-1 { margin-right: 0.25rem; }
.mr-2 { margin-right: 0.5rem; }
.mr-3 { margin-right: 0.75rem; }
.ml-4 { margin-left: 1rem; }

/* Flexbox */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-shrink-0 { flex-shrink: 0; }
.flex-1 { flex: 1 1 0%; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.space-x-4 > * + * { margin-left: 1rem; }
.space-x-6 > * + * { margin-left: 1.5rem; }
.space-y-3 > * + * { margin-top: 0.75rem; }
.space-y-4 > * + * { margin-top: 1rem; }

/* Grid */
.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.gap-6 { gap: 1.5rem; }

/* 文字 */
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { 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; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.text-center { text-align: center; }
.text-gray-400 { color: #9ca3af; }
.text-gray-500 { color: #6b7280; }
.text-gray-600 { color: #4b5563; }
.text-gray-700 { color: #374151; }
.text-gray-800 { color: #1f2937; }
.text-emerald-600 { color: #059669; }
.text-emerald-700 { color: #047857; }
.text-blue-600 { color: #2563eb; }
.text-blue-700 { color: #1d4ed8; }
.text-purple-600 { color: #9333ea; }
.hover\:text-emerald-600:hover { color: #059669; }
.hover\:text-emerald-100:hover { color: #a7f3d0; }
.hover\:text-blue-600:hover { color: #2563eb; }
.hover\:text-purple-600:hover { color: #9333ea; }
.line-clamp-2 { overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* 背景 */
.bg-white { background-color: #ffffff; }
.bg-gray-50 { background-color: #f9fafb; }
.bg-gray-100 { background-color: #f3f4f6; }
.bg-gray-200 { background-color: #e5e7eb; }
.bg-emerald-50 { background-color: #ecfdf5; }
.bg-emerald-100 { background-color: #a7f3d0; }
.bg-emerald-500 { background-color: #10b981; }
.bg-emerald-600 { background-color: #059669; }
.bg-blue-50 { background-color: #eff6ff; }
.bg-blue-100 { background-color: #dbeafe; }
.bg-blue-500 { background-color: #3b82f6; }
.bg-purple-50 { background-color: #faf5ff; }
.bg-purple-100 { background-color: #f3e8ff; }
.bg-gradient-to-r { background-image: linear-gradient(to right, var(--tw-gradient-stops)); }
.from-emerald-500 { --tw-gradient-from: #10b981; }
.to-teal-600 { --tw-gradient-to: #0d9488; }
.hover\:bg-emerald-100:hover { background-color: #ecfdf5; }
.hover\:bg-emerald-50:hover { background-color: #f0fdf4; }
.hover\:bg-blue-100:hover { background-color: #dbeafe; }
.hover\:bg-purple-100:hover { background-color: #faf5ff; }

/* 边框 */
.border { border-width: 1px; }
.border-t { border-top-width: 1px; }
.border-gray-100 { border-color: #f3f4f6; }
.border-gray-200 { border-color: #e5e7eb; }
.border-gray-300 { border-color: #d1d5db; }
.border-blue-200 { border-color: #bfdbfe; }
.rounded { border-radius: 0.375rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-full { border-radius: 9999px; }

/* 阴影 */
.shadow { box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06); }
.shadow-sm { box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); }
.shadow-md { box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06); }

/* 定位 */
.fixed { position: fixed; }
.relative { position: relative; }
.absolute { position: absolute; }
.top-4 { top: 1rem; }
.right-4 { right: 1rem; }
.bottom-8 { bottom: 2rem; }
.right-8 { right: 2rem; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }

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

/* 过渡 */
.transition { transition-property: color, background-color, border-color, text-decoration-color, fill, stroke, opacity, box-shadow, transform, filter, backdrop-filter; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-all { transition-property: all; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }

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

/* 列表 */
.list-none { list-style-type: none; }

/* 响应式 */
@media (min-width: 768px) {
    .md\:flex { display: flex; }
    .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .md\:flex-row { flex-direction: row; }
    .md\:mb-0 { margin-bottom: 0; }
    .md\:mb-4 { margin-bottom: 1rem; }
}

/* 自定义工具类 */
.w-full { width: 100%; }
.w-5 { width: 1.25rem; }
.w-10 { width: 2.5rem; }
.w-12 { width: 3rem; }
.h-5 { height: 1.25rem; }
.h-10 { height: 2.5rem; }
.h-12 { height: 3rem; }
.h-24 { height: 6rem; }
.h-40 { height: 10rem; }
.max-w-4xl { max-width: 56rem; }
.object-cover { object-fit: cover; }
.focus\:ring-2:focus { outline: 2px solid transparent; outline-offset: 2px; box-shadow: 0 0 0 calc(2px + 2px) currentColor; }
.focus\:ring-emerald-500:focus { --tw-ring-color: #10b981; }
.focus\:border-emerald-500:focus { border-color: #10b981; }

/* 按钮和链接 */
button, a { cursor: pointer; }
button:disabled { opacity: 0.5; cursor: not-allowed; }