/* =====================================================
   TBO基地 - 完整自定义样式（替代TailwindCSS）
   版本：2.0
   更新：2024-12-02
   ===================================================== */

/* ==================== 重置样式 ==================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
}

body {
  margin: 0;
  line-height: inherit;
  color: #1f2937;
  background-color: #f9fafb;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: bold;
  line-height: 1.2;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ==================== 容器 ==================== */
.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-row {
  flex-direction: row;
}

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

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

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

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

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

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

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

.justify-start {
  justify-content: flex-start;
}

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

.justify-end {
  justify-content: flex-end;
}

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

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

.flex-1 {
  flex: 1 1 0%;
}

.flex-shrink-0 {
  flex-shrink: 0;
}

.flex-grow {
  flex-grow: 1;
}

/* ==================== Grid ==================== */
.grid {
  display: grid;
}

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

.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));
}

.gap-2 {
  gap: 0.5rem;
}

.gap-4 {
  gap: 1rem;
}

.gap-6 {
  gap: 1.5rem;
}

.gap-8 {
  gap: 2rem;
}

/* ==================== 间距工具类 ==================== */
/* Margin */
.m-0 {
  margin: 0;
}

.m-2 {
  margin: 0.5rem;
}

.m-4 {
  margin: 1rem;
}

.m-6 {
  margin: 1.5rem;
}

.m-8 {
  margin: 2rem;
}

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

.my-2 {
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}

.my-4 {
  margin-top: 1rem;
  margin-bottom: 1rem;
}

.my-6 {
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
}

.my-8 {
  margin-top: 2rem;
  margin-bottom: 2rem;
}

.mt-1 {
  margin-top: 0.25rem;
}

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

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

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

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

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

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

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

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

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

.ml-2 {
  margin-left: 0.5rem;
}

.ml-4 {
  margin-left: 1rem;
}

.mr-2 {
  margin-right: 0.5rem;
}

.mr-4 {
  margin-right: 1rem;
}

/* Padding */
.p-2 {
  padding: 0.5rem;
}

.p-3 {
  padding: 0.75rem;
}

.p-4 {
  padding: 1rem;
}

.p-6 {
  padding: 1.5rem;
}

.p-8 {
  padding: 2rem;
}

.p-12 {
  padding: 3rem;
}

.px-2 {
  padding-left: 0.5rem;
  padding-right: 0.5rem;
}

.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-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-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-8 {
  padding-top: 2rem;
}

.pb-8 {
  padding-bottom: 2rem;
}

/* Space Between */
.space-x-2 > * + * {
  margin-left: 0.5rem;
}

.space-x-4 > * + * {
  margin-left: 1rem;
}

.space-x-6 > * + * {
  margin-left: 1.5rem;
}

.space-y-2 > * + * {
  margin-top: 0.5rem;
}

.space-y-4 > * + * {
  margin-top: 1rem;
}

.space-y-6 > * + * {
  margin-top: 1.5rem;
}

/* ==================== 宽度高度 ==================== */
.w-8 {
  width: 2rem;
}

.w-12 {
  width: 3rem;
}

.w-16 {
  width: 4rem;
}

.w-full {
  width: 100%;
}

.h-8 {
  height: 2rem;
}

.h-12 {
  height: 3rem;
}

.h-16 {
  height: 4rem;
}

.h-full {
  height: 100%;
}

.max-w-md {
  max-width: 28rem;
}

.max-w-lg {
  max-width: 32rem;
}

.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-5xl {
  max-width: 64rem;
}

.max-w-6xl {
  max-width: 72rem;
}

.max-w-7xl {
  max-width: 80rem;
}

/* ==================== 文本样式 ==================== */
.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;
}

.text-5xl {
  font-size: 3rem;
  line-height: 1;
}

.text-6xl {
  font-size: 3.75rem;
  line-height: 1;
}

.font-light {
  font-weight: 300;
}

.font-normal {
  font-weight: 400;
}

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

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

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

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

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

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

.leading-normal {
  line-height: 1.5;
}

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

.leading-loose {
  line-height: 2;
}

.tracking-tight {
  letter-spacing: -0.025em;
}

.tracking-normal {
  letter-spacing: 0;
}

.tracking-wide {
  letter-spacing: 0.025em;
}

.uppercase {
  text-transform: uppercase;
}

.lowercase {
  text-transform: lowercase;
}

.capitalize {
  text-transform: capitalize;
}

/* ==================== 颜色系统 ==================== */
/* 文本颜色 */
.text-white {
  color: #ffffff;
}

.text-black {
  color: #000000;
}

.text-gray-50 {
  color: #f9fafb;
}

.text-gray-100 {
  color: #f3f4f6;
}

.text-gray-200 {
  color: #e5e7eb;
}

.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-50 {
  color: #eff6ff;
}

.text-blue-100 {
  color: #dbeafe;
}

.text-blue-500 {
  color: #3b82f6;
}

.text-blue-600 {
  color: #2563eb;
}

.text-blue-700 {
  color: #1d4ed8;
}

.text-green-600 {
  color: #16a34a;
}

.text-purple-600 {
  color: #9333ea;
}

.text-orange-600 {
  color: #ea580c;
}

.text-red-600 {
  color: #dc2626;
}

.text-pink-600 {
  color: #db2777;
}

.text-cyan-600 {
  color: #0891b2;
}

.text-indigo-600 {
  color: #4f46e5;
}

.text-yellow-600 {
  color: #ca8a04;
}

.text-teal-600 {
  color: #0d9488;
}

/* 背景颜色 */
.bg-white {
  background-color: #ffffff;
}

.bg-black {
  background-color: #000000;
}

.bg-transparent {
  background-color: transparent;
}

.bg-gray-50 {
  background-color: #f9fafb;
}

.bg-gray-100 {
  background-color: #f3f4f6;
}

.bg-gray-200 {
  background-color: #e5e7eb;
}

.bg-gray-700 {
  background-color: #374151;
}

.bg-gray-800 {
  background-color: #1f2937;
}

.bg-blue-50 {
  background-color: #eff6ff;
}

.bg-blue-100 {
  background-color: #dbeafe;
}

.bg-blue-500 {
  background-color: #3b82f6;
}

.bg-blue-600 {
  background-color: #2563eb;
}

.bg-green-50 {
  background-color: #f0fdf4;
}

.bg-green-100 {
  background-color: #dcfce7;
}

.bg-purple-50 {
  background-color: #faf5ff;
}

.bg-purple-100 {
  background-color: #f3e8ff;
}

.bg-orange-50 {
  background-color: #fff7ed;
}

.bg-orange-100 {
  background-color: #ffedd5;
}

.bg-red-100 {
  background-color: #fee2e2;
}

.bg-pink-100 {
  background-color: #fce7f3;
}

.bg-cyan-100 {
  background-color: #cffafe;
}

.bg-indigo-100 {
  background-color: #e0e7ff;
}

.bg-yellow-100 {
  background-color: #fef9c3;
}

.bg-teal-100 {
  background-color: #ccfbf1;
}

.bg-pink-600 {
  background-color: #db2777;
}

.bg-cyan-600 {
  background-color: #0891b2;
}

.bg-indigo-600 {
  background-color: #4f46e5;
}

.bg-yellow-600 {
  background-color: #ca8a04;
}

.bg-teal-600 {
  background-color: #0d9488;
}

/* 背景渐变 */
.bg-gradient-to-r {
  background-image: linear-gradient(to right, var(--tw-gradient-from), var(--tw-gradient-to));
}

.bg-gradient-to-b {
  background-image: linear-gradient(to bottom, var(--tw-gradient-from), var(--tw-gradient-to));
}

.from-blue-50 {
  --tw-gradient-from: #eff6ff;
}

.from-blue-500 {
  --tw-gradient-from: #3b82f6;
}

.to-purple-50 {
  --tw-gradient-to: #faf5ff;
}

.to-purple-600 {
  --tw-gradient-to: #9333ea;
}

/* 透明度 */
.opacity-0 {
  opacity: 0;
}

.opacity-50 {
  opacity: 0.5;
}

.opacity-75 {
  opacity: 0.75;
}

.opacity-90 {
  opacity: 0.9;
}

.opacity-100 {
  opacity: 1;
}

/* ==================== 边框 ==================== */
.border {
  border-width: 1px;
  border-style: solid;
}

.border-0 {
  border-width: 0;
}

.border-2 {
  border-width: 2px;
}

.border-4 {
  border-width: 4px;
}

.border-t {
  border-top-width: 1px;
  border-top-style: solid;
}

.border-b {
  border-bottom-width: 1px;
  border-bottom-style: solid;
}

.border-white {
  border-color: #ffffff;
}

.border-gray-200 {
  border-color: #e5e7eb;
}

.border-gray-300 {
  border-color: #d1d5db;
}

.border-gray-700 {
  border-color: #374151;
}

.border-blue-600 {
  border-color: #2563eb;
}

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

.rounded-md {
  border-radius: 0.375rem;
}

.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 -1px rgba(0, 0, 0, 0.1);
}

.shadow-sm {
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.shadow-md {
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
}

.shadow-lg {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

.shadow-xl {
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

.shadow-2xl {
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.shadow-none {
  box-shadow: none;
}

/* ==================== 显示与布局 ==================== */
.block {
  display: block;
}

.inline-block {
  display: inline-block;
}

.inline {
  display: inline;
}

.hidden {
  display: none;
}

.overflow-hidden {
  overflow: hidden;
}

.overflow-auto {
  overflow: auto;
}

.overflow-scroll {
  overflow: scroll;
}

/* 定位 */
.static {
  position: static;
}

.fixed {
  position: fixed;
}

.absolute {
  position: absolute;
}

.relative {
  position: relative;
}

.sticky {
  position: sticky;
}

.top-0 {
  top: 0;
}

.bottom-0 {
  bottom: 0;
}

.left-0 {
  left: 0;
}

.right-0 {
  right: 0;
}

.inset-0 {
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}

/* Z-index */
.z-0 {
  z-index: 0;
}

.z-10 {
  z-index: 10;
}

.z-20 {
  z-index: 20;
}

.z-30 {
  z-index: 30;
}

.z-40 {
  z-index: 40;
}

.z-50 {
  z-index: 50;
}

/* ==================== 过渡和动画 ==================== */
.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;
}

.transition-colors {
  transition-property: color, background-color, border-color;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 150ms;
}

.duration-150 {
  transition-duration: 150ms;
}

.duration-200 {
  transition-duration: 200ms;
}

.duration-300 {
  transition-duration: 300ms;
}

.ease-in {
  transition-timing-function: cubic-bezier(0.4, 0, 1, 1);
}

.ease-out {
  transition-timing-function: cubic-bezier(0, 0, 0.2, 1);
}

.ease-in-out {
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Transform */
.scale-95 {
  transform: scale(0.95);
}

.scale-100 {
  transform: scale(1);
}

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

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

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

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

.translate-y-0 {
  transform: translateY(0);
}

.rotate-180 {
  transform: rotate(180deg);
}

/* ==================== Hover状态 ==================== */
.hover\:bg-white:hover {
  background-color: #ffffff;
}

.hover\:bg-gray-50:hover {
  background-color: #f9fafb;
}

.hover\:bg-gray-100:hover {
  background-color: #f3f4f6;
}

.hover\:bg-blue-50:hover {
  background-color: #eff6ff;
}

.hover\:bg-blue-100:hover {
  background-color: #dbeafe;
}

.hover\:bg-blue-600:hover {
  background-color: #2563eb;
}

.hover\:bg-blue-700:hover {
  background-color: #1d4ed8;
}

.hover\:bg-green-700:hover {
  background-color: #15803d;
}

.hover\:bg-purple-700:hover {
  background-color: #7e22ce;
}

.hover\:bg-orange-700:hover {
  background-color: #c2410c;
}

.hover\:bg-red-700:hover {
  background-color: #b91c1c;
}

.hover\:bg-pink-700:hover {
  background-color: #be185d;
}

.hover\:bg-cyan-700:hover {
  background-color: #0e7490;
}

.hover\:bg-indigo-700:hover {
  background-color: #4338ca;
}

.hover\:bg-yellow-700:hover {
  background-color: #a16207;
}

.hover\:bg-teal-700:hover {
  background-color: #0f766e;
}

.hover\:text-white:hover {
  color: #ffffff;
}

.hover\:text-gray-300:hover {
  color: #d1d5db;
}

.hover\:text-blue-600:hover {
  color: #2563eb;
}

.hover\:text-blue-700:hover {
  color: #1d4ed8;
}

.hover\:border-blue-600:hover {
  border-color: #2563eb;
}

.hover\:shadow-sm:hover {
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.hover\:shadow-md:hover {
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
}

.hover\:shadow-lg:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

.hover\:shadow-xl:hover {
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

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

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

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

/* ==================== 其他工具类 ==================== */
.cursor-pointer {
  cursor: pointer;
}

.cursor-default {
  cursor: default;
}

.pointer-events-none {
  pointer-events: none;
}

.select-none {
  user-select: none;
}

.resize-none {
  resize: none;
}

.appearance-none {
  appearance: none;
}

.outline-none {
  outline: 2px solid transparent;
  outline-offset: 2px;
}

.focus\:outline-none:focus {
  outline: 2px solid transparent;
  outline-offset: 2px;
}

.focus\:ring-2:focus {
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.5);
}

/* ==================== 表单元素 ==================== */
input,
button,
select,
textarea {
  font-family: inherit;
  font-size: 100%;
  line-height: inherit;
  margin: 0;
  color: inherit;
}

input[type="text"],
input[type="email"],
input[type="number"],
input[type="tel"],
input[type="password"],
textarea,
select {
  padding: 0.5rem 0.75rem;
  border: 1px solid #d1d5db;
  border-radius: 0.5rem;
  width: 100%;
  background-color: #ffffff;
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

button {
  cursor: pointer;
  border: none;
  background: none;
  padding: 0;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ==================== 链接 ==================== */
a {
  color: inherit;
  text-decoration: inherit;
  transition: color 0.15s ease-in-out;
}

/* ==================== 列表 ==================== */
ul,
ol {
  list-style: none;
}

/* ==================== 响应式工具类 ==================== */
@media (min-width: 640px) {
  .sm\:block {
    display: block;
  }
  
  .sm\:hidden {
    display: none;
  }
  
  .sm\:flex {
    display: flex;
  }
  
  .sm\:grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  
  .sm\:text-5xl {
    font-size: 3rem;
    line-height: 1;
  }
}

@media (min-width: 768px) {
  .md\:block {
    display: block;
  }
  
  .md\:hidden {
    display: none;
  }
  
  .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\:grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  
  .md\:text-6xl {
    font-size: 3.75rem;
    line-height: 1;
  }
  
  .md\:p-12 {
    padding: 3rem;
  }
  
  .md\:px-8 {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

@media (min-width: 1024px) {
  .lg\:block {
    display: block;
  }
  
  .lg\:hidden {
    display: none;
  }
  
  .lg\:flex {
    display: flex;
  }
  
  .lg\:grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  
  .lg\:grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  
  .lg\:grid-cols-6 {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
  
  .lg\:text-6xl {
    font-size: 3.75rem;
    line-height: 1;
  }
}

@media (min-width: 1280px) {
  .xl\:grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  
  .xl\:grid-cols-5 {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
  
  .xl\:text-7xl {
    font-size: 4.5rem;
    line-height: 1;
  }
}

/* ==================== 自定义组件样式 ==================== */
/* 工具卡片 */
.tool-card {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid #e5e7eb;
  background-color: #ffffff;
}

.tool-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  border-color: #3b82f6;
}

/* Hero渐变 */
.hero-gradient {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  position: relative;
  overflow: hidden;
}

.hero-gradient::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at top right, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

/* 章节标题 */
.section-title {
  position: relative;
  display: inline-block;
  padding-bottom: 1rem;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, #3b82f6 0%, #8b5cf6 100%);
  border-radius: 2px;
}

/* SEO页面数据卡片 */
.data-card {
  transition: all 0.3s ease;
  border: 1px solid #e5e7eb;
}

.data-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  border-color: #3b82f6;
}

/* 动画 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fadeIn {
  animation: fadeIn 0.6s ease-out;
}

.animate-slideDown {
  animation: slideDown 0.4s ease-out;
}

/* ==================== 打印样式 ==================== */
@media print {
  body {
    background-color: #ffffff;
  }
  
  .no-print {
    display: none !important;
  }
  
  .shadow,
  .shadow-sm,
  .shadow-md,
  .shadow-lg,
  .shadow-xl {
    box-shadow: none !important;
  }
}