/* =============================================
   Tailwind CSS Utilities - Pre-compiled
   yazhenglaw.com (国内站)
   ============================================= */

/* ===== Reset (Preflight) ===== */
*, ::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%; scroll-behavior: smooth; }
body { margin: 0; line-height: inherit; }
h1, h2, h3, h4, h5, h6 { font-size: inherit; font-weight: inherit; margin: 0; }
p { margin: 0; }
a { color: inherit; text-decoration: inherit; }
ul, ol { list-style: none; margin: 0; padding: 0; }
img, svg, video { display: block; vertical-align: middle; }
img, video { max-width: 100%; height: auto; }
button, input, select, textarea { font-family: inherit; font-size: 100%; font-weight: inherit; line-height: inherit; color: inherit; margin: 0; padding: 0; }
button { cursor: pointer; background-color: transparent; }

/* ===== Custom / Site-specific ===== */
.accent-color { color: #007BFF; }
.bg-accent { background-color: #007BFF; }
.hover-bg-accent:hover { background-color: #0069d9; }

/* ===== Layout ===== */
.fixed { position: fixed; }
.relative { position: relative; }
.top-0 { top: 0; }
.z-50 { z-index: 50; }
.block { display: block; }
.inline-block { display: inline-block; }
.inline-flex { display: inline-flex; }
.flex { display: flex; }
.grid { display: grid; }
.hidden { display: none; }
.overflow-hidden { overflow: hidden; }
.object-cover { object-fit: cover; }

/* ===== Flexbox ===== */
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.flex-shrink-0 { flex-shrink: 0; }
.flex-1 { flex: 1 1 0%; }
.items-center { align-items: center; }
.items-baseline { align-items: baseline; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }

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

/* ===== Space Between ===== */
.space-x-4 > :not([hidden]) ~ :not([hidden]) { margin-left: 1rem; }
.space-x-8 > :not([hidden]) ~ :not([hidden]) { margin-left: 2rem; }
.space-y-1 > :not([hidden]) ~ :not([hidden]) { margin-top: 0.25rem; }
.space-y-2 > :not([hidden]) ~ :not([hidden]) { margin-top: 0.5rem; }
.space-y-4 > :not([hidden]) ~ :not([hidden]) { margin-top: 1rem; }

/* ===== Padding ===== */
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.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-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
.py-0\.5 { padding-top: 0.125rem; padding-bottom: 0.125rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.py-20 { padding-top: 5rem; padding-bottom: 5rem; }
.pt-2 { padding-top: 0.5rem; }
.pt-24 { padding-top: 6rem; }
.pt-28 { padding-top: 7rem; }
.pb-3 { padding-bottom: 0.75rem; }
.pb-20 { padding-bottom: 5rem; }

/* ===== Margin ===== */
.mx-auto { margin-left: auto; margin-right: auto; }
.my-6 { margin-top: 1.5rem; margin-bottom: 1.5rem; }
.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; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-10 { margin-bottom: 2.5rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-16 { margin-bottom: 4rem; }
.mr-2 { margin-right: 0.5rem; }
.mr-3 { margin-right: 0.75rem; }
.mr-6 { margin-right: 1.5rem; }

/* ===== Sizing ===== */
.h-1 { height: 0.25rem; }
.h-5 { height: 1.25rem; }
.h-6 { height: 1.5rem; }
.h-10 { height: 2.5rem; }
.h-14 { height: 3.5rem; }
.h-16 { height: 4rem; }
.h-48 { height: 12rem; }
.w-5 { width: 1.25rem; }
.w-6 { width: 1.5rem; }
.w-24 { width: 6rem; }
.w-full { width: 100%; }
.w-auto { width: auto; }
.max-w-none { max-width: none; }
.max-w-xl { max-width: 36rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-4xl { max-width: 56rem; }
.max-w-6xl { max-width: 72rem; }

/* ===== Typography ===== */
.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-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
.text-5xl { font-size: 3rem; line-height: 1; }
.text-6xl { font-size: 3.75rem; line-height: 1; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }
.leading-tight { line-height: 1.25; }
.leading-relaxed { line-height: 1.625; }
.tracking-tight { letter-spacing: -0.025em; }
.tracking-wide { letter-spacing: 0.025em; }
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-justify { text-align: justify; }
.underline { text-decoration-line: underline; }

/* ===== Text Colors ===== */
.text-white { color: #fff; }
.text-gray-300 { color: #d1d5db; }
.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-gray-900 { color: #111827; }
.text-blue-300 { color: #93c5fd; }
.text-blue-600 { color: #2563eb; }
.text-blue-800 { color: #1e40af; }
.text-blue-900 { color: #1e3a5f; }
.text-green-800 { color: #166534; }
.text-red-800 { color: #991b1b; }
.text-purple-800 { color: #6b21a8; }
.text-yellow-800 { color: #854d0e; }

/* ===== Background Colors ===== */
.bg-white { background-color: #fff; }
.bg-gray-50 { background-color: #f9fafb; }
.bg-gray-800 { background-color: #1f2937; }
.bg-gray-900 { background-color: #111827; }
.bg-blue-50 { background-color: #eff6ff; }
.bg-blue-100 { background-color: #dbeafe; }
.bg-blue-600 { background-color: #2563eb; }
.bg-green-100 { background-color: #dcfce7; }
.bg-red-100 { background-color: #fee2e2; }
.bg-purple-100 { background-color: #f3e8ff; }
.bg-yellow-100 { background-color: #fef9c3; }

/* ===== Borders ===== */
.border { border-width: 1px; }
.border-b { border-bottom-width: 1px; }
.border-l-4 { border-left-width: 4px; }
.border-transparent { border-color: transparent; }
.border-gray-100 { border-color: #f3f4f6; }
.border-blue-500 { border-color: #3b82f6; }

/* ===== Border Radius ===== */
.rounded-md { border-radius: 0.375rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-full { border-radius: 9999px; }
.rounded-r { border-top-right-radius: 0.25rem; border-bottom-right-radius: 0.25rem; }

/* ===== Shadows ===== */
.shadow-sm { box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05); }
.shadow { box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1); }
.shadow-xl { box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1); }

/* ===== Transitions ===== */
.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; }
.duration-300 { transition-duration: 300ms; }

/* ===== Interactivity ===== */
.focus\:outline-none:focus { outline: 2px solid transparent; outline-offset: 2px; }

/* ===== Hover States ===== */
.hover\:text-gray-300:hover { color: #d1d5db; }
.hover\:text-gray-900:hover { color: #111827; }
.hover\:text-blue-200:hover { color: #bfdbfe; }
.hover\:text-blue-400:hover { color: #60a5fa; }
.hover\:text-blue-600:hover { color: #2563eb; }
.hover\:text-blue-800:hover { color: #1e40af; }
.hover\:bg-gray-50:hover { background-color: #f9fafb; }
.hover\:bg-gray-800:hover { background-color: #1f2937; }
.hover\:bg-blue-200:hover { background-color: #bfdbfe; }
.hover\:bg-blue-700:hover { background-color: #1d4ed8; }
.hover\:underline:hover { text-decoration-line: underline; }
.hover\:shadow-2xl:hover { box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25); }

/* ===== Group Hover ===== */
.group:hover .group-hover\:text-blue-600 { color: #2563eb; }

/* ===== Responsive: sm (>=640px) ===== */
@media (min-width: 640px) {
    .sm\:inline { display: inline; }
    .sm\:px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
    .sm\:px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
    .sm\:text-sm { font-size: 0.875rem; line-height: 1.25rem; }
    .sm\:text-lg { font-size: 1.125rem; line-height: 1.75rem; }
    .sm\:text-xl { font-size: 1.25rem; line-height: 1.75rem; }
    .sm\:text-5xl { font-size: 3rem; line-height: 1; }
    .sm\:mt-5 { margin-top: 1.25rem; }
    .sm\:max-w-xl { max-width: 36rem; }
    .sm\:mx-auto { margin-left: auto; margin-right: auto; }
    .sm\:flex-row { flex-direction: row; }
    .sm\:space-x-4 > :not([hidden]) ~ :not([hidden]) { margin-left: 1rem; }
    .sm\:space-y-0 > :not([hidden]) ~ :not([hidden]) { margin-top: 0; }
}

/* ===== Responsive: md (>=768px) ===== */
@media (min-width: 768px) {
    .md\:flex { display: flex; }
    .md\:hidden { display: none; }
    .md\:flex-row { flex-direction: row; }
    .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md\:py-4 { padding-top: 1rem; padding-bottom: 1rem; }
    .md\:px-10 { padding-left: 2.5rem; padding-right: 2.5rem; }
    .md\:px-12 { padding-left: 3rem; padding-right: 3rem; }
    .md\:text-lg { font-size: 1.125rem; line-height: 1.75rem; }
    .md\:text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
    .md\:text-6xl { font-size: 3.75rem; line-height: 1; }
    .md\:text-center { text-align: center; }
    .md\:space-x-8 > :not([hidden]) ~ :not([hidden]) { margin-left: 2rem; }
    .md\:space-y-0 > :not([hidden]) ~ :not([hidden]) { margin-top: 0; }
}

/* ===== Responsive: lg (>=1024px) ===== */
@media (min-width: 1024px) {
    .lg\:px-8 { padding-left: 2rem; padding-right: 2rem; }
    .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}