/**
 * Common CSS - 公共样式
 * 包含布局、容器、按钮、表单、卡片等通用组件
 */

/* ========== 基础样式 ========== */
html {
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-black);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========== 排版 ========== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  color: var(--color-black);
}

h1 {
  font-size: var(--text-5xl);
}

h2 {
  font-size: var(--text-4xl);
}

h3 {
  font-size: var(--text-3xl);
}

h4 {
  font-size: var(--text-2xl);
}

h5 {
  font-size: var(--text-xl);
}

h6 {
  font-size: var(--text-lg);
}

p {
  margin-bottom: var(--spacing-4);
  line-height: var(--leading-relaxed);
  color: var(--color-gray-600);
}

strong, b {
  font-weight: var(--font-semibold);
}

em, i {
  font-style: italic;
}

/* ========== 链接 ========== */
a {
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-hover);
}

/* ========== 容器布局 ========== */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
}

.container-fluid {
  width: 100%;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* ========== Section 区块 ========== */
.section {
  padding-top: var(--spacing-20);
  padding-bottom: var(--spacing-20);
}

.section-sm {
  padding-top: var(--spacing-12);
  padding-bottom: var(--spacing-12);
}

.section-lg {
  padding-top: var(--spacing-24);
  padding-bottom: var(--spacing-24);
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-12);
}

.section-title h2 {
  margin-bottom: var(--spacing-4);
}

.section-title p {
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* ========== Flex 布局工具 ========== */
.flex {
  display: flex;
}

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

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

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

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

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

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

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

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

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

.gap-2 { gap: var(--spacing-2); }
.gap-3 { gap: var(--spacing-3); }
.gap-4 { gap: var(--spacing-4); }
.gap-5 { gap: var(--spacing-5); }
.gap-6 { gap: var(--spacing-6); }
.gap-8 { gap: var(--spacing-8); }
.gap-10 { gap: var(--spacing-10); }
.gap-12 { gap: var(--spacing-12); }

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

.grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-cols-5 {
  grid-template-columns: repeat(5, 1fr);
}

.grid-cols-6 {
  grid-template-columns: repeat(6, 1fr);
}

/* ========== 按钮组件 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-6);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* 主要按钮 - 橙色填充 */
.btn-primary {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: var(--color-white);
}

/* 轮廓按钮 - 橙色边框 */
.btn-outline {
  background-color: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover:not(:disabled) {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* 深色按钮 - 黑色填充 */
.btn-dark {
  background-color: var(--color-black);
  border-color: var(--color-black);
  color: var(--color-white);
}

.btn-dark:hover:not(:disabled) {
  background-color: var(--color-gray-800);
  border-color: var(--color-gray-800);
  color: var(--color-white);
}

/* 幽灵按钮 - 透明背景 */
.btn-ghost {
  background-color: transparent;
  border-color: transparent;
  color: var(--color-black);
}

.btn-ghost:hover:not(:disabled) {
  background-color: var(--color-gray-100);
  color: var(--color-black);
}

/* 白色按钮 */
.btn-white {
  background-color: var(--color-white);
  border-color: var(--color-white);
  color: var(--color-black);
}

.btn-white:hover:not(:disabled) {
  background-color: var(--color-gray-100);
  border-color: var(--color-gray-100);
  color: var(--color-black);
}

/* 按钮尺寸 */
.btn-sm {
  padding: var(--spacing-2) var(--spacing-4);
  font-size: var(--text-sm);
}

.btn-lg {
  padding: var(--spacing-4) var(--spacing-8);
  font-size: var(--text-lg);
}

/* 圆角按钮 */
.btn-rounded {
  border-radius: var(--radius-full);
}

/* ========== 表单组件 ========== */
.form-group {
  margin-bottom: var(--spacing-5);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-2);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-black);
}

.form-label .required {
  color: var(--color-error);
  margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-black);
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-gray-400);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
  outline: none;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23737373' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--spacing-3) center;
  padding-right: var(--spacing-10);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-hint {
  margin-top: var(--spacing-1);
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.form-error {
  margin-top: var(--spacing-1);
  font-size: var(--text-sm);
  color: var(--color-error);
}

/* 表单行 - 多列布局 */
.form-row {
  display: flex;
  gap: var(--spacing-5);
}

.form-row .form-group {
  flex: 1;
}

/* ========== 卡片组件 ========== */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-normal);
}

.card:hover {
  transform: translateY(-5px);
}

.card-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  background-color: var(--color-gray-200);
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-body {
  padding: var(--spacing-5);
}

.card-title {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  margin-bottom: var(--spacing-3);
  color: var(--color-black);
}

.card-text {
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  line-height: var(--leading-relaxed);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  margin-top: var(--spacing-4);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-black);
  transition: color var(--transition-fast);
}

.card-link:hover {
  color: var(--color-primary);
}

.card-link svg,
.card-link .icon {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
}

.card-link:hover svg,
.card-link:hover .icon {
  transform: translateX(4px);
}

/* ========== 标签组件 ========== */
.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-1) var(--spacing-3);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  border-radius: var(--radius-full);
  background-color: var(--color-gray-100);
  color: var(--color-gray-600);
}

.tag-primary {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

/* ========== Tab 组件 ========== */
.tabs {
  display: flex;
  gap: var(--spacing-8);
  border-bottom: 1px solid var(--color-gray-200);
  overflow-x: auto;
}

.tab-item {
  padding: var(--spacing-4) 0;
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-gray-500);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  cursor: pointer;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.tab-item:hover {
  color: var(--color-black);
}

.tab-item.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.tab-panels {
  position: relative;
  padding-top: var(--spacing-8);
}

/* ========== 手风琴 FAQ 组件 ========== */
.accordion {
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.accordion-item {
  border-bottom: 1px solid var(--color-gray-200);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-5) var(--spacing-6);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-black);
  background-color: var(--color-white);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.accordion-header:hover {
  background-color: var(--color-gray-50);
}

.accordion-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: var(--text-xl);
}

.accordion-content {
  padding: 0 var(--spacing-6);
}

.accordion-item.active .accordion-content {
  padding-bottom: var(--spacing-5);
}

.accordion-content p {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--color-gray-600);
}

/* ========== Logo 墙组件 ========== */
.logo-wall {
  overflow: hidden;
  padding: var(--spacing-8) 0;
}

.logo-wall-title {
  text-align: center;
  font-size: var(--text-lg);
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-8);
}

.logo-wall-track {
  display: flex;
  align-items: center;
  gap: var(--spacing-12);
}

.logo-wall-item {
  flex-shrink: 0;
  height: 40px;
  display: flex;
  align-items: center;
  filter: grayscale(100%);
  opacity: 0.6;
  transition: filter var(--transition-normal), opacity var(--transition-normal);
}

.logo-wall-item:hover {
  filter: grayscale(0%);
  opacity: 1;
}

.logo-wall-item img {
  height: 100%;
  width: auto;
  object-fit: contain;
}

/* ========== 无限轮播Logo组件 ========== */
/* 轮播容器 */
.partners-carousel {
  width: 100%;
  overflow: hidden;
  position: relative;
  /* 左右渐变遮罩，增强视觉效果 */
  -webkit-mask-image: linear-gradient(
    to right,
    transparent 0%,
    black 10%,
    black 90%,
    transparent 100%
  );
  mask-image: linear-gradient(
    to right,
    transparent 0%,
    black 10%,
    black 90%,
    transparent 100%
  );
}

/* 轮播轨道 */
.partners-track {
  display: flex;
  align-items: center;
  gap: var(--spacing-20);
  width: max-content;
  animation: partners-scroll 30s linear infinite;
}

/* 鼠标悬停时暂停动画 */
.partners-carousel:hover .partners-track {
  animation-play-state: paused;
}

/* 无限滚动动画 */
@keyframes partners-scroll {
  0% {
    transform: translateX(0);
  }
  100% {
    /* 移动一组logo的宽度（50%代表第一组的完整宽度） */
    transform: translateX(calc(-50%));
  }
}

/* 单个Logo项 */
.partner-logo {
  height: 40px;
  min-width: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  flex-shrink: 0;
}

.partner-logo:hover {
  transform: scale(1.1);
}

.partner-logo img {
  height: 100%;
  width: auto;
  max-width: 140px;
  object-fit: contain;
}

/* 轮播响应式样式 */
@media (max-width: 767px) {
  .partners-track {
    gap: var(--spacing-8);
    animation-duration: 20s;
  }
  
  .partner-logo {
    height: 32px;
    min-width: 100px;
  }
  
  .partner-logo img {
    max-width: 110px;
  }
}

/* ========== 统计数字组件 ========== */
.stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-16);
  padding: var(--spacing-10) 0;
}

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

.stat-number {
  font-size: var(--text-5xl);
  font-weight: var(--font-bold);
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--spacing-2);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-gray-600);
}

/* ========== 图片占位 ========== */
.img-placeholder {
  background-color: var(--color-gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-400);
  font-size: var(--text-sm);
}

/* ========== 分割线 ========== */
.divider {
  height: 1px;
  background-color: var(--color-gray-200);
  margin: var(--spacing-8) 0;
}

/* ========== 文本工具类 ========== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--color-primary); }
.text-black { color: var(--color-black); }
.text-white { color: var(--color-white); }
.text-gray { color: var(--color-gray-600); }

.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }

.font-normal { font-weight: var(--font-normal); }
.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }
.font-bold { font-weight: var(--font-bold); }

/* ========== 间距工具类 ========== */
.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }
.mt-8 { margin-top: var(--spacing-8); }
.mt-10 { margin-top: var(--spacing-10); }
.mt-12 { margin-top: var(--spacing-12); }

.mb-4 { margin-bottom: var(--spacing-4); }
.mb-6 { margin-bottom: var(--spacing-6); }
.mb-8 { margin-bottom: var(--spacing-8); }
.mb-10 { margin-bottom: var(--spacing-10); }
.mb-12 { margin-bottom: var(--spacing-12); }

/* ========== 背景工具类 ========== */
.bg-white { background-color: var(--color-white); }
.bg-gray { background-color: var(--color-gray-100); }
.bg-primary { background-color: var(--color-primary); }
.bg-black { background-color: var(--color-black); }

/* ========== 响应式 ========== */
@media (max-width: 1199px) {
  h1 { font-size: var(--text-4xl); }
  h2 { font-size: var(--text-3xl); }
  h3 { font-size: var(--text-2xl); }
  
  .section {
    padding-top: var(--spacing-16);
    padding-bottom: var(--spacing-16);
  }
  
  .grid-cols-4 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .grid-cols-6 {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 991px) {
  .grid-cols-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-cols-5 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .grid-cols-6 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .stats {
    gap: var(--spacing-8);
  }
  
  .stat-number {
    font-size: var(--text-4xl);
  }
}

@media (max-width: 767px) {
  html {
    font-size: 15px;
  }
  
  h1 { font-size: var(--text-3xl); }
  h2 { font-size: var(--text-2xl); }
  h3 { font-size: var(--text-xl); }
  
  .section {
    padding-top: var(--spacing-12);
    padding-bottom: var(--spacing-12);
  }
  
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4,
  .grid-cols-5,
  .grid-cols-6 {
    grid-template-columns: 1fr;
  }
  
  .form-row {
    flex-direction: column;
    gap: 0;
  }
  
  .tabs {
    gap: var(--spacing-4);
  }
  
  .stats {
    flex-wrap: wrap;
    gap: var(--spacing-6);
  }
  
  .stat-item {
    width: 45%;
  }
  
  .stat-number {
    font-size: var(--text-3xl);
  }
}

/* ========== 回到顶部按钮 ========== */
.back-to-top {
  position: fixed;
  bottom: var(--spacing-8);
  right: var(--spacing-8);
  z-index: var(--z-fixed);
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: none;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #f5a623 0%, #ff6b35 50%, #f5a623 100%);
  background-size: 200% 200%;
  color: var(--color-white);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.8);
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 
    0 4px 15px rgba(245, 166, 35, 0.4),
    0 0 0 0 rgba(245, 166, 35, 0.4);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
  animation: backToTopFloat 3s ease-in-out infinite;
}

.back-to-top:hover {
  background-position: 100% 100%;
  transform: translateY(-4px) scale(1.1);
  box-shadow: 
    0 8px 25px rgba(245, 166, 35, 0.5),
    0 0 30px rgba(245, 166, 35, 0.3);
}

.back-to-top:hover .back-to-top-icon svg {
  animation: arrowBounce 0.6s ease-in-out infinite;
}

.back-to-top:hover .back-to-top-ring {
  animation: ringPulse 1s ease-out infinite;
}

.back-to-top:focus {
  outline: none;
  box-shadow: 
    0 4px 15px rgba(245, 166, 35, 0.4),
    0 0 0 3px rgba(245, 166, 35, 0.3);
}

.back-to-top:active {
  transform: translateY(-2px) scale(1.05);
  transition-duration: 0.1s;
}

/* 光晕效果 */
.back-to-top-glow {
  position: absolute;
  inset: -3px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #f5a623, #ff6b35, #f5a623);
  background-size: 300% 300%;
  opacity: 0;
  z-index: -1;
  filter: blur(8px);
  transition: opacity 0.3s ease;
}

.back-to-top:hover .back-to-top-glow {
  opacity: 0.6;
  animation: glowRotate 2s linear infinite;
}

/* 脉冲环 */
.back-to-top-ring {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-full);
  border: 2px solid rgba(245, 166, 35, 0.6);
  opacity: 0;
  pointer-events: none;
}

.back-to-top-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.back-to-top-icon svg {
  width: 22px;
  height: 22px;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.2));
}

/* 动画定义 */
@keyframes backToTopFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-5px) scale(1); }
}

@keyframes arrowBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

@keyframes ringPulse {
  0% {
    opacity: 1;
    transform: scale(1);
  }
  100% {
    opacity: 0;
    transform: scale(1.8);
  }
}

@keyframes glowRotate {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* 移动端调整 */
@media (max-width: 767px) {
  .back-to-top {
    width: 50px;
    height: 50px;
    bottom: var(--spacing-6);
    right: var(--spacing-6);
  }

  .back-to-top-icon svg {
    width: 20px;
    height: 20px;
  }
}

/* 尊重用户减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  .back-to-top {
    transition: opacity 0.2s ease;
    animation: none !important;
  }

  .back-to-top.visible {
    animation: none;
  }

  .back-to-top:hover .back-to-top-icon svg,
  .back-to-top:hover .back-to-top-ring,
  .back-to-top:hover .back-to-top-glow {
    animation: none;
  }
}

/* ========== 动画增强样式 ========== */

/* 按钮波纹效果样式 */
.btn {
  position: relative;
  overflow: hidden;
}

.ripple-effect {
  position: absolute;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.4);
  width: 100px;
  height: 100px;
  margin-top: -50px;
  margin-left: -50px;
  animation: rippleAnimation 0.6s ease-out;
  pointer-events: none;
}

@keyframes rippleAnimation {
  0% {
    transform: scale(0);
    opacity: 1;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}

/* 3D卡片倾斜效果基础样式 */
.tilt-card {
  transform-style: preserve-3d;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ========== 页面过渡系统 ========== */

/* 兜底：JS 加载失败时 2s 后自动显示 */
@keyframes bodyFallbackShow {
  to { opacity: 1; }
}

body {
  opacity: 0;
  animation: bodyFallbackShow 0s 2s forwards;
}

/* JS 正常加载后由过渡系统控制显隐 */
body.page-loaded {
  opacity: 1;
  animation: none;
  transition: none;
}

/* 离场：内容淡出 + 上移 + 轻微模糊 */
body.page-exiting {
  pointer-events: none;
  animation: none;
}

body.page-exiting main {
  animation: pageContentExit 0.4s cubic-bezier(0.4, 0, 1, 1) forwards;
}

@keyframes pageContentExit {
  to {
    opacity: 0;
    transform: translateY(-12px) scale(0.99);
    filter: blur(3px);
  }
}

/* ---- 双层幕帘遮罩 ---- */
.page-transition-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 9999;
  pointer-events: none;
  overflow: hidden;
}

/* 公共层样式 */
.page-transition-layer {
  position: absolute;
  inset: 0;
  will-change: transform;
}

/* 主层 — 浅灰半透明 + 强毛玻璃 + 底部渐变柔边 */
.page-transition-layer-primary {
  background: linear-gradient(
    to bottom,
    rgba(245, 124, 0, 0.3) 0%,
    rgba(245, 124, 0, 0.2) 78%,
    rgba(245, 124, 0, 0.1) 92%,
    transparent 100%
  );
  backdrop-filter: blur(24px) saturate(1.2);
  -webkit-backdrop-filter: blur(24px) saturate(1.2);
  z-index: 2;
  opacity: 0;
}

/* 衬底层 — 更深半透明 + 毛玻璃 + 底部渐变柔边 */
.page-transition-layer-secondary {
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.3) 0%,
    rgba(0, 0, 0, 0.3) 72%,
    rgba(0, 0, 0, 0.1) 90%,
    transparent 100%
  );
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1;
}

/* 过渡 Logo — 居中悬浮于幕帘之上 */
.page-transition-logo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
  width: 140px;
  height: auto;
  opacity: 1;
  pointer-events: none;
}

/* --- 入场：幕帘错时向上滑走，层叠揭幕 --- */
.page-transition-overlay.entering .page-transition-layer-primary {
  animation: curtainSlideUp 0.72s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.page-transition-overlay.entering .page-transition-layer-secondary {
  animation: curtainSlideUp 0.72s cubic-bezier(0.22, 1, 0.36, 1) 0.12s both;
}

.page-transition-overlay.entering .page-transition-logo {
  animation: transLogoExit 0.45s cubic-bezier(0.4, 0, 1, 1) 0.1s both;
}

/* 入场完成：保持在视口上方 */
.page-transition-overlay.entered .page-transition-layer {
  transform: translateY(-101%);
}

.page-transition-overlay.entered .page-transition-logo {
  opacity: 0;
}

/* --- 离场：幕帘错时从上方滑下，层叠遮盖 --- */
.page-transition-overlay.exiting .page-transition-layer-secondary {
  animation: curtainSlideDown 0.46s cubic-bezier(0.65, 0, 0.35, 1) both;
}

.page-transition-overlay.exiting .page-transition-layer-primary {
  animation: curtainSlideDown 0.46s cubic-bezier(0.65, 0, 0.35, 1) 0.06s both;
}

.page-transition-overlay.exiting .page-transition-logo {
  animation: transLogoEnter 0.35s cubic-bezier(0.22, 1, 0.36, 1) 0.08s both;
}

/* Logo 入场：从缩小淡入到正常 */
@keyframes transLogoEnter {
  from {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.8);
  }
  to {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
}

/* Logo 离场：从正常淡出到缩小 */
@keyframes transLogoExit {
  from {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
  to {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.85);
  }
}

/* Hero 入场辅助 — 提供整体轻微上移，不干扰子元素独立动画 */
.hero-animated {
  animation: heroReveal 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes heroReveal {
  from { transform: translateY(12px); }
  to   { transform: translateY(0); }
}

/* 滚动进度条 */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), #FFD700);
  z-index: 9999;
  width: 0;
  transition: width 0.1s ease-out;
}

/* 自定义光标样式（可选） */
.custom-cursor {
  position: fixed;
  width: 40px;
  height: 40px;
  border: 2px solid var(--color-primary);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.2s ease, height 0.2s ease, border-color 0.2s ease;
  mix-blend-mode: difference;
}

.custom-cursor.cursor-hover {
  width: 60px;
  height: 60px;
  border-color: var(--color-white);
}

.custom-cursor-dot {
  position: fixed;
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
}

/* 光线扫过效果增强 */
.light-sweep::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.25),
    transparent
  );
  transition: left 0.5s ease;
}

.light-sweep:hover::after,
.light-sweep.shine-active::after {
  left: 150%;
}

/* 图片悬停缩放增强 */
.hover-img-zoom {
  overflow: hidden;
  border-radius: inherit;
}

.hover-img-zoom img {
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}

.hover-img-zoom:hover img {
  transform: scale(1.08);
}

/* 脉冲光晕效果 - 用于数字统计 */
.animate-pulse-glow {
  animation: pulseGlowEffect 2.5s ease-in-out infinite;
}

@keyframes pulseGlowEffect {
  0%, 100% {
    text-shadow: 0 0 5px rgba(245, 166, 35, 0.3);
  }
  50% {
    text-shadow: 0 0 20px rgba(245, 166, 35, 0.6), 0 0 40px rgba(245, 166, 35, 0.3);
  }
}

/* 悬浮上移增强 */
.hover-lift {
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), 
              box-shadow 0.4s ease;
}

.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* 磁吸按钮样式 */
.magnetic-btn {
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* 悬停发光按钮 */
.hover-glow {
  transition: box-shadow 0.4s ease, transform 0.3s ease;
}

.hover-glow:hover {
  box-shadow: 0 0 30px rgba(245, 166, 35, 0.4), 
              0 0 60px rgba(245, 166, 35, 0.2);
}

/* ==========================================================================
   结果弹窗（表单提交成功/失败反馈）
   ========================================================================== */
.result-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.result-modal.show {
  opacity: 1;
  visibility: visible;
}

.result-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.result-modal-body {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-10);
  max-width: 440px;
  width: 90%;
  text-align: center;
  opacity: 0;
  transition: all var(--transition-normal);
}

.result-modal.show .result-modal-body {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
}

.result-modal-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-6);
}

.result-modal-icon svg {
  width: 100%;
  height: 100%;
}

.result-modal-icon.success .check-circle {
  stroke: var(--color-success);
  stroke-width: 2;
  stroke-dasharray: 166;
  stroke-dashoffset: 166;
  animation: resultCheckCircle 0.6s ease-in-out forwards;
}

.result-modal-icon.success .check-mark {
  stroke: var(--color-success);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 48;
  stroke-dashoffset: 48;
  animation: resultCheckMark 0.3s ease-in-out 0.4s forwards;
}

.result-modal-icon.error .error-circle {
  stroke: var(--color-error);
  stroke-width: 2;
  stroke-dasharray: 166;
  stroke-dashoffset: 166;
  animation: resultCheckCircle 0.6s ease-in-out forwards;
}

.result-modal-icon.error .error-mark {
  stroke: var(--color-error);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 57;
  stroke-dashoffset: 57;
  animation: resultCheckMark 0.3s ease-in-out 0.4s forwards;
}

@keyframes resultCheckCircle {
  to { stroke-dashoffset: 0; }
}

@keyframes resultCheckMark {
  to { stroke-dashoffset: 0; }
}

.result-modal-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
  color: var(--color-black);
  margin-bottom: var(--spacing-3);
}

.result-modal-message {
  font-size: var(--text-base);
  color: var(--color-gray-500);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--spacing-6);
}

.result-modal-btn {
  display: inline-block;
  width: 100%;
  padding: 14px var(--spacing-8);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-white);
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-normal);
}

.result-modal-btn:hover {
  background: var(--color-primary-hover);
}

@media (max-width: 480px) {
  .result-modal-body {
    padding: var(--spacing-6);
  }
  .result-modal-icon {
    width: 60px;
    height: 60px;
  }
  .result-modal-title {
    font-size: var(--text-xl);
  }
}

/* ==========================================================================
   Toast 轻提示
   ========================================================================== */
.toast-container {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  line-height: 1.4;
  color: var(--color-white);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
  pointer-events: auto;
  opacity: 0;
  transform: translateY(-12px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  max-width: 420px;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast.hide {
  opacity: 0;
  transform: translateY(-12px);
}

.toast-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.toast-icon svg {
  width: 100%;
  height: 100%;
}

.toast-warning {
  background: #F59E0B;
}

.toast-error {
  background: var(--color-error);
}

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