/**
 * Tailwind CSS 轻量级版本
 * 仅包含网站实际使用的CSS类，减少文件大小
 */

/* CSS Reset */
*, ::before, ::after {
  box-sizing: border-box;
  border-width: 0;
  border-style: solid;
  border-color: #e5e7eb;
}

html { line-height: 1.5; -webkit-text-size-adjust: 100%; tab-size: 4; }
body { margin: 0; line-height: inherit; }

/* 布局相关 */
.container { width: 100%; margin-left: auto; margin-right: auto; padding-left: 1rem; padding-right: 1rem; }
@media (min-width: 640px) { .container { max-width: 640px; } }
@media (min-width: 768px) { .container { max-width: 768px; } }
@media (min-width: 1024px) { .container { max-width: 1024px; } }
@media (min-width: 1280px) { .container { max-width: 1280px; } }
@media (min-width: 1536px) { .container { max-width: 1536px; } }

/* Flexbox */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }

/* Grid */
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (min-width: 768px) {
  .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\\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .md\\:grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
}
@media (min-width: 1024px) {
  .lg\\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg\\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* 间距 */
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }

/* 内边距 */
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-5 { padding: 1.25rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.p-10 { padding: 2.5rem; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-5 { padding-left: 1.25rem; padding-right: 1.25rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-5 { padding-top: 1.25rem; padding-bottom: 1.25rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.pt-20 { padding-top: 5rem; }

/* 外边距 */
.m-0 { margin: 0; }
.mx-auto { margin-left: auto; margin-right: auto; }
.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; }
.mb-10 { margin-bottom: 2.5rem; }
.mb-12 { margin-bottom: 3rem; }
.ml-2 { margin-left: 0.5rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-10 { margin-top: 2.5rem; }
.mt-12 { margin-top: 3rem; }

/* 宽度和高度 */
.w-3 { width: 0.75rem; }
.w-10 { width: 2.5rem; }
.w-12 { width: 3rem; }
.w-16 { width: 4rem; }
.w-20 { width: 5rem; }
.w-32 { width: 8rem; }
.w-full { width: 100%; }
.w-auto { width: auto; }
.h-1 { height: 0.25rem; }
.h-3 { height: 0.75rem; }
.h-10 { height: 2.5rem; }
.h-12 { height: 3rem; }
.h-16 { height: 4rem; }
.h-48 { height: 12rem; }
.h-64 { height: 16rem; }
.h-full { height: 100%; }
.h-auto { height: auto; }
.min-h-\\[600px\\] { min-height: 600px; }

/* 定位 */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.top-0 { top: 0; }
.right-0 { right: 0; }
.bottom-0 { bottom: 0; }
.left-0 { left: 0; }
.bottom-6 { bottom: 1.5rem; }
.right-6 { right: 1.5rem; }
.bottom-8 { bottom: 2rem; }
.left-4 { left: 1rem; }
.right-4 { right: 1rem; }
.top-1\\/2 { top: 50%; }
.-translate-y-1\\/2 { transform: translateY(-50%); }

/* 层级 */
.z-10 { z-index: 10; }
.z-30 { z-index: 30; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }

/* 显示控制 */
.block { display: block; }
.inline-block { display: inline-block; }
.hidden { display: none; }
.invisible { visibility: hidden; }
.visible { visibility: visible; }

/* 透明度 */
.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-100 { opacity: 1; }

/* 溢出 */
.overflow-hidden { overflow: hidden; }

/* 文本对齐 */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* 字体大小 */
.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-4xl { font-size: 2.25rem; line-height: 2.5rem; }

/* 字体粗细 */
.font-medium { font-weight: 500; }
.font-bold { font-weight: 700; }

/* 颜色 - 根据网站实际使用的颜色定义 */
.text-white { color: #ffffff; }
.text-gray-100 { color: #f3f4f6; }
.text-gray-400 { color: #9ca3af; }
.text-gray-500 { color: #6b7280; }
.text-gray-600 { color: #4b5563; }
.text-gray-700 { color: #374151; }
.text-dark { color: #1f2937; }

/* 背景颜色 */
.bg-white { background-color: #ffffff; }
.bg-gray-50 { background-color: #f9fafb; }
.bg-gray-100 { background-color: #f3f4f6; }
.bg-gray-200 { background-color: #e5e7eb; }
.bg-primary { background-color: #1e40af; }
.bg-secondary { background-color: #f97316; }
.bg-accent { background-color: #10b981; }

/* 背景透明度 */
.bg-white\\/95 { background-color: rgba(255, 255, 255, 0.95); }
.bg-white\\/20 { background-color: rgba(255, 255, 255, 0.2); }
.bg-white\\/30 { background-color: rgba(255, 255, 255, 0.3); }
.bg-black\\/50 { background-color: rgba(0, 0, 0, 0.5); }
.bg-black\\/60 { background-color: rgba(0, 0, 0, 0.6); }

/* 边框 */
.border { border-width: 1px; }
.border-t { border-top-width: 1px; }
.border-2 { border-width: 2px; }
.border-gray-200 { border-color: #e5e7eb; }
.border-gray-300 { border-color: #d1d5db; }
.border-white\\/40 { border-color: rgba(255, 255, 255, 0.4); }

/* 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; }

/* 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-md { box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06); }
.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-xl { box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04); }

/* 变换 */
.transition-all { transition-property: all; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-colors { transition-property: color, background-color, border-color; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-opacity { transition-property: opacity; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-transform { transition-property: transform; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.duration-300 { transition-duration: 300ms; }
.duration-500 { transition-duration: 500ms; }
.duration-1000 { transition-duration: 1000ms; }

/* 悬停效果 */
.hover\\:bg-primary\\/90:hover { background-color: rgba(30, 64, 175, 0.9); }
.hover\\:bg-secondary\\/90:hover { background-color: rgba(249, 115, 22, 0.9); }
.hover\\:bg-white\\/30:hover { background-color: rgba(255, 255, 255, 0.3); }
.hover\\:bg-gray-100:hover { background-color: #f3f4f6; }
.hover\\:bg-gray-200:hover { background-color: #e5e7eb; }
.hover\\:text-primary:hover { color: #1e40af; }
.hover\\:text-white:hover { color: #ffffff; }
.hover\\:text-gray-300:hover { color: #d1d5db; }
.hover\\:text-gray-700:hover { color: #374151; }
.hover\\:underline:hover { text-decoration-line: underline; }
.hover\\:scale-105:hover { transform: scale(1.05); }
.hover\\:scale-110:hover { transform: scale(1.1); }

/* 响应式设计 */
@media (min-width: 768px) {
  .md\\:flex { display: flex; }
  .md\\:hidden { display: none; }
  .md\\:flex-row { flex-direction: row; }
  .md\\:px-12 { padding-left: 3rem; padding-right: 3rem; }
  .md\\:p-10 { padding: 2.5rem; }
  .md\\:text-base { font-size: 1rem; line-height: 1.5rem; }
  .md\\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
  .lg\\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg\\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* 自定义工具类 */
.scale-hover { transition: transform 0.3s ease; }
.scale-hover:hover { transform: scale(1.05); }

.backdrop-blur-sm { backdrop-filter: blur(4px); }

.leading-tight { line-height: 1.25; }
.leading-relaxed { line-height: 1.625; }

.max-w-xl { max-width: 36rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-md { max-width: 28rem; }

.space-y-2 > :not([hidden]) ~ :not([hidden]) { margin-top: 0.5rem; }
.space-y-3 > :not([hidden]) ~ :not([hidden]) { margin-top: 0.75rem; }
.space-y-4 > :not([hidden]) ~ :not([hidden]) { margin-top: 1rem; }
.space-y-6 > :not([hidden]) ~ :not([hidden]) { margin-top: 1.5rem; }

/* 禁用状态 */
.disabled\\:opacity-50:disabled { opacity: 0.5; }
.disabled\\:cursor-not-allowed:disabled { cursor: not-allowed; }

/* 焦点状态 */
.focus\\:ring-2:focus { box-shadow: 0 0 0 2px rgba(30, 64, 175, 0.5); }
.focus\\:ring-primary:focus { box-shadow: 0 0 0 2px rgba(30, 64, 175, 0.5); }
.focus\\:border-primary:focus { border-color: #1e40af; }
.focus\\:outline-none:focus { outline: none; }

/* 字体家族 */
.font-sans { font-family: Inter, system-ui, sans-serif; }

/* 动态字体大小 */
.text-\\[clamp\\(1\\.5rem\\,3vw\\,2\\.5rem\\)\\] { font-size: clamp(1.5rem, 3vw, 2.5rem); }
.text-\\[clamp\\(2rem\\,5vw\\,3\\.5rem\\)\\] { font-size: clamp(2rem, 5vw, 3.5rem); }
.text-\\[clamp\\(1rem\\,2vw\\,1\\.25rem\\)\\] { font-size: clamp(1rem, 2vw, 1.25rem); }

/* 特殊高度 */
.h-\\[90vh\\] { height: 90vh; }
.h-\\[400px\\] { height: 400px; }

/* 特殊宽度 */
.w-\\[70\\%\\] { width: 70%; }
.w-\\[25\\%\\] { width: 25%; }

/* 渐变背景 */
.bg-gradient-to-r { background-image: linear-gradient(to right, var(--tw-gradient-stops)); }
.from-black\\/60 { --tw-gradient-from: rgba(0, 0, 0, 0.6); --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(0, 0, 0, 0)); }
.to-transparent { --tw-gradient-to: transparent; }

/* 特殊效果 */
.line-through { text-decoration-line: line-through; }

/* 表单控件 */
.form-checkbox { appearance: none; background-color: #fff; border: 1px solid #d1d5db; border-radius: 0.25rem; width: 1.25rem; height: 1.25rem; }
.form-checkbox:checked { background-color: #1e40af; border-color: #1e40af; }