/* 协议弹窗样式 */
.policy-modal {
  display: none;
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.35);
}
.policy-modal-content {
  max-width: 520px;
  width: 90%;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.18);
  position: absolute;
  left: 50%;
  top: 40%;
  transform: translate(-50%,-50%);
  padding: 32px 28px 24px 28px;
}
.policy-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.policy-modal-header h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0;
}
#closePolicyModal {
  font-size: 1.5rem;
  cursor: pointer;
}
.policy-modal-body {
  margin-top: 18px;
  font-size: 1rem;
  color: #222;
  line-height: 1.7;
  max-height: 320px;
  overflow-y: auto;
  padding-right: 8px;
}
.policy-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 16px;
  margin-top: 32px;
}
.policy-modal-footer button {
  padding: 8px 28px;
  border-radius: 6px;
  border: none;
  font-size: 1rem;
  cursor: pointer;
}
#cancelPolicyModal {
  background: #f5f5f5;
  color: #222;
}
#agreePolicyModal {
  background: var(--primary);
  color: #222;
  font-weight: 600;
}
/* 通用页面样式 - 所有页面共用 */

/* 新配色方案 */
:root {
  --primary: #FF6B00; /* 主色调（原橙色优化） */
  --secondary: #6E44FF; /* 副色调（原紫色优化） */
  --dark-bg: #1A1A24; /* 深空黑背景 */
  --text-light: #F5F7FA; /* 浅色文字 */
  --text-primary: #333333; /* 主要文字颜色 */
  --text-secondary: #666666; /* 次要文字颜色 */
  --bg-light: #FFFFFF; /* 浅色背景 */
  --bg-section: #F8F9FA; /* 区块背景 */
  --border-light: #E5E7EB; /* 浅色边框 */
  --shadow-light: rgba(0, 0, 0, 0.1); /* 浅色阴影 */
  --shadow-medium: rgba(0, 0, 0, 0.15); /* 中等阴影 */
  --shadow-dark: rgba(0, 0, 0, 0.25); /* 深色阴影 */
  --gradient-primary: linear-gradient(135deg, var(--primary), #FF8A33); /* 主色渐变 */
  --gradient-secondary: linear-gradient(135deg, var(--secondary), #8B5FFF); /* 副色渐变 */
}

/* CSS重置和基础样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Roboto', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-light);
  overflow-x: auto;
  min-width: 1240px;
}

/* 标题字体系统 */
h1, h2, h3, h4, h5, h6, .heading {
  font-family: 'Inter', 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-weight: 700;
  color: var(--text-primary);
}

.container {
  width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  min-width: 1200px;
}

/* 导航栏样式 */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(26, 26, 36, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 107, 0, 0.3);
  z-index: 1000;
  transition: all 0.3s ease;
}

.nav-container {
  width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
  height: 70px;
  min-width: 1200px;
  position: relative;
}

.nav-logo {
  display: flex;
  align-items: center;
  color: var(--text-light);
  font-size: 1.2rem;
  font-weight: 700;
  font-family: 'Inter', 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  text-decoration: none;
  transition: color 0.3s ease;
}

.nav-logo:hover {
  color: var(--primary);
}

.nav-logo i {
  margin-right: 8px;
  color: var(--primary);
  font-size: 1.5rem;
}

.nav-menu {
  display: flex;
  list-style: none;
  align-items: center;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

/* 分离主导航菜单和按钮 */
.nav-actions {
  display: flex;
  align-items: center;
}

.nav-menu li {
  margin: 0 25px;
  position: relative;
}

.nav-menu a {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
  font-size: 1.1rem;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--primary) !important;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background-color: var(--primary);
  transition: width 0.3s ease;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  color: var(--primary) !important;
  width: 100%;
}

.btn-consult {
  background: var(--gradient-primary);
  padding: 8px 20px;
  border-radius: 25px;
  color: var(--text-light) !important;
  font-weight: 600;
  text-decoration: none;
  margin-right: 10px;
  transition: all 0.3s ease;
  border: none;
  box-shadow: 0 2px 8px var(--shadow-light);
}

.btn-consult:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 107, 0, 0.4);
  color: var(--text-light) !important;
}

.btn-login {
  background: var(--gradient-secondary);
  padding: 8px 20px;
  border-radius: 25px;
  color: var(--text-light) !important;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
  box-shadow: 0 2px 8px var(--shadow-light);
}

.btn-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(110, 68, 255, 0.4);
  color: var(--text-light) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text-light);
  margin: 3px 0;
  transition: 0.3s;
}

/* 右侧滚动按钮组 */
.fixed-buttons {
  position: fixed !important;
  right: 20px;
  top: 70vh;
  transform: translateY(-50%);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-end;
  pointer-events: auto;
}

/* 返回顶部按钮 */
.back-to-top {
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px var(--shadow-medium);
  border: 2px solid white;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(255, 107, 0, 0.4);
}

/* 咨询按钮组 */
.consult-buttons {
  display: flex;
  flex-direction: column;
  gap: 8px;
  opacity: 1;
  visibility: visible;
}

.consult-item {
  background: var(--gradient-primary);
  color: var(--text-light);
  padding: 12px 20px;
  border-radius: 25px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
  position: relative;
  box-shadow: 0 4px 12px var(--shadow-medium);
  border: 2px solid white;
}

.consult-item:hover {
  transform: translateX(-5px);
  box-shadow: 0 8px 20px rgba(255, 107, 0, 0.4);
}

/* 弹出框样式 */
.consult-popup {
  position: absolute;
  right: 100%;
  top: 50%;
  transform: translateY(-50%);
  margin-right: 15px;
  background: var(--bg-light);
  border-radius: 12px;
  box-shadow: 0 15px 40px var(--shadow-dark);
  padding: 20px;
  width: 320px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1001;
  border: 1px solid var(--border-light);
}

.consult-popup::after {
  content: '';
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  border: 8px solid transparent;
  border-left-color: var(--bg-light);
}

.consult-item:hover .consult-popup {
  z-index: 1002;
  opacity: 1;
  visibility: visible;
  transform: translateY(-50%) translateX(-10px);
}

.popup-content {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.popup-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px;
  border-radius: 8px;
  transition: background-color 0.2s ease;
  cursor: pointer;
}

.popup-item:hover {
  background-color: var(--bg-section);
}

.popup-item i {
  color: var(--primary);
  font-size: 1.2rem;
  margin-top: 2px;
  flex-shrink: 0;
}

.popup-text {
  flex: 1;
  color: var(--text-primary);
}

.popup-text h4 {
  font-size: 0.95rem;
  font-weight: 700;
  font-family: 'Inter', 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.popup-text p {
  font-size: 0.85rem;
  line-height: 1.4;
  color: var(--text-secondary);
  margin: 0;
}

.popup-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.popup-link:hover {
  text-decoration: underline;
}

/* 页脚样式 */
.footer {
  background: var(--dark-bg);
  color: var(--text-light);
  padding: 50px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h3 {
  font-size: 1.2rem;
  font-weight: 700;
  font-family: 'Inter', 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  margin-bottom: 20px;
  color: var(--primary);
}

.footer-section ul {
  list-style: none;
}

.footer-section li {
  margin-bottom: 10px;
}

.footer-section a {
  color: #ccc;
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  border-top: 1px solid #333;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.social-links {
  display: flex;
  gap: 28px;
  justify-content: center;
  align-items: center;
  position: relative;
  margin-top: 18px;
  margin-bottom: 18px;
}

.social-links .social-icon {
  width: 44px;
  height: 44px;
  background: #333;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.5rem;
  transition: all 0.3s cubic-bezier(.4,0,.2,1);
  cursor: pointer;
  position: relative;
}

.social-links .social-icon:hover {
  background: #ffa500;
  color: #fff;
  transform: scale(1.12) translateY(-4px);
  z-index: 20;
}

/* 二维码弹窗容器 */
.qrcode-popup {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  position: absolute;
  left: 50%;
  bottom: 70px;
  transform: translateX(-50%) scaleY(0.7) rotateY(90deg);
  opacity: 0;
  pointer-events: none;
  transition: all 0.45s cubic-bezier(.4,0,.2,1);
  z-index: 99;
  perspective: 800px;
}
.qrcode-popup.active {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) scaleY(1) rotateY(0deg);
}
.qrcode-popup-inner {
  background: rgba(255, 145, 0, 0.845);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.18);
  padding: 22px 28px 18px 28px;
  display: flex;
  flex-direction: row;
  gap: 32px;
  align-items: flex-end;
  max-width: 90vw;
  flex-wrap: nowrap;
  justify-content: center;
}
.qrcode-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0 8px;
}
.qrcode-item img {
  width: 110px;
  height: 110px;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.10);
  background: #fff;
  margin-bottom: 8px;
}
.qrcode-item .qrcode-label {
  font-size: 14px;
  color: #333;
  margin-top: 2px;
  text-align: center;
  white-space: nowrap;
}

.social-links a {
  width: 40px;
  height: 40px;
  background: #333;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: all 0.3s ease;
}

.social-links a:hover {
  background: #ffa500;
  transform: translateY(-2px);
}

/* 通用按钮样式 */
.btn-primary {
  display: inline-block;
  background: linear-gradient(135deg, #ffa500, #ff8c00);
  color: #fff;
  padding: 15px 30px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  width: fit-content;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(255, 165, 0, 0.4);
}

.btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  background: transparent;
  color: #ffa500;
  text-decoration: none;
  border: 2px solid #ffa500;
  border-radius: 50px;
  font-weight: 500;
  transition: all 0.3s ease;
  width: fit-content;
}

.btn-secondary:hover {
  background: #ffa500;
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(255, 165, 0, 0.3);
}

/* 通用section样式 */
section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: #333;
  position: relative;
  display: inline-block;
  padding: 0 100px;
}



.section-header p {
  font-size: 1.1rem;
  color: #666;
  max-width: 600px;
  margin: 0 auto;
}

/* 通知样式 */
.error-notification {
  position: fixed;
  top: 20px;
  right: 20px;
  background: #dc3545;
  color: white;
  padding: 15px 20px;
  border-radius: 8px;
  z-index: 1001;
  transform: translateX(100%);
  transition: transform 0.3s ease;
}

.error-notification.show {
  transform: translateX(0);
}

.success-notification {
  background: #28a745;
}

/* 通用动画 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

@keyframes floating {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

/* 滚动条样式 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #ffa500, #ff8c00);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, #ff8c00, #e67e22);
}

/* 通用响应式适配 - 已禁用以防止内容缩放变形 */
/*
@media (min-width: 1240px) {
  .container {
    width: 1200px;
  }

  .nav-container {
    width: 1200px;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: rgba(0, 0, 0, 0.95);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    padding: 20px 0;
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-menu li {
    margin: 10px 0;
  }

  .btn-login {
    margin-left: 0;
    margin-top: 10px;
  }

  .nav-toggle {
    display: flex;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }

  .fixed-buttons {
    position: fixed !important;
    right: 15px;
    top: 50vh;
    transform: translateY(-50%);
    z-index: 1000;
  }

  .consult-item {
    padding: 10px 15px;
    font-size: 0.8rem;
  }

  .back-to-top {
    width: 45px;
    height: 45px;
  }

  .error-notification {
    right: 10px;
    left: 10px;
    transform: translateY(-100%);
  }

  .error-notification.show {
    transform: translateY(0);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  .section-header h2 {
    font-size: 2rem;
  }
}
*/

/* 加载动画 */
.loading {
  opacity: 0;
  animation: fadeIn 0.6s ease forwards;
}

/* 浮动效果 */
.floating {
  animation: floating 3s ease-in-out infinite;
}

/* 脉冲效果 */
.pulse {
  animation: pulse 2s infinite;
}

/* 悬停发光效果 */
.glow:hover {
  box-shadow: 0 0 20px rgba(255, 165, 0, 0.5);
}

/* 下拉菜单样式 */
.nav-menu li {
  margin: 0 25px;
  position: relative;
}

.nav-menu .dropdown {
  position: relative;
}

.nav-menu .dropdown-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  background: rgba(37, 37, 37, 0.845);
  backdrop-filter: blur(15px);
  border-radius: 8px;
  padding: 8px 0;
  min-width: 140px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1001;
  list-style: none;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 165, 0, 0.2);
}

.nav-menu .dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-menu .dropdown-menu li {
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-menu .dropdown-menu a {
  display: block;
  padding: 12px 20px;
  color: #fff;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 400;
  transition: all 0.3s ease;
  border-radius: 0;
  white-space: nowrap;
}

.nav-menu .dropdown-menu a:hover {
  background: rgba(255, 165, 0, 0.15);
  color: #ffa500;
  padding-left: 25px;
}

.nav-menu .dropdown-menu a::after {
  display: none;
}

/* 为下拉菜单添加小箭头 */
.nav-menu .dropdown > a::before {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-bottom: 5px solid rgba(0, 0, 0, 0.95);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.nav-menu .dropdown:hover > a::before {
  opacity: 1;
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: rgba(0, 0, 0, 0.95);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    padding: 20px 0;
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-menu li {
    margin: 10px 0;
  }

  .btn-login {
    margin-left: 0;
    margin-top: 10px;
  }

  .nav-toggle {
    display: flex;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }

  .fixed-buttons {
    position: fixed !important;
    right: 15px;
    top: 50vh;
    transform: translateY(-50%);
    z-index: 1000;
  }

  .consult-item {
    padding: 10px 15px;
    font-size: 0.8rem;
  }

  .back-to-top {
    width: 45px;
    height: 45px;
  }

  .error-notification {
    right: 10px;
    left: 10px;
    transform: translateY(-100%);
  }

  .error-notification.show {
    transform: translateY(0);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  .section-header h2 {
    font-size: 1.8rem;
    padding: 0 60px;
  }

  .section-header h2::before,
  .section-header h2::after {
    width: 30px;
  }

  .section-header::before {
    left: calc(50% - 80px);
  }

  .section-header::after {
    right: calc(50% - 80px);
  }
}

/* 动态背景装饰系统 - 基于example\动态图标背景 */
.animated-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: -1;
  pointer-events: none;
  animation: FadeIn 3.1s ease-out;
  user-select: none;
}

@keyframes FadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.floating-icons {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.floating-icon {
  position: absolute;
  width: 100%;
  background-repeat: no-repeat;
  background-size: auto 100%;
  height: 70px;
  animation-duration: 120s;
  animation-iteration-count: infinite;
  animation-fill-mode: forwards;
  animation-timing-function: linear;
  animation-name: Float, FadeFloat;
  z-index: 1;
  color: rgba(255, 165, 0, 0.7);
  font-size: 48px;
  user-select: none;
  pointer-events: none;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.floating-icon.Foreground {
  height: 15%;
  min-height: 60px;
  z-index: 3;
  color: rgba(255, 107, 0, 0.8);
  font-size: 56px;
}

.floating-icon.Background {
  height: calc(12% / 1.1);
  min-height: 45px;
  animation-duration: calc(120s * 1.75);
  color: rgba(255, 165, 0, 0.6);
  font-size: 40px;
}

@keyframes Float {
  from { transform: translateX(100%) translateZ(0); }
  to { transform: translateX(-15%) translateZ(0); }
}

@keyframes FadeFloat {
  0%, 100% { opacity: 0; }
  5%, 90% { opacity: 1; }
}

/* 生成循环动画延迟 */
.floating-icon:nth-child(1) {
  animation-delay: calc(-120s / 6.5 * 1);
  top: 6%;
}

.floating-icon:nth-child(2) {
  animation-delay: calc(-120s / 6.5 * 2);
  top: 12%;
}

.floating-icon:nth-child(3) {
  animation-delay: calc(-120s / 6.5 * 3);
  top: 18%;
}

.floating-icon:nth-child(4) {
  animation-delay: calc(-120s / 6.5 * 4);
  top: 24%;
}

.floating-icon:nth-child(5) {
  animation-delay: calc(-120s / 6.5 * 5);
  top: 30%;
}

.floating-icon:nth-child(6) {
  animation-delay: calc(-120s / 6.5 * 6);
  top: 36%;
}

.floating-icon:nth-child(7) {
  animation-delay: calc(-120s / 6.5 * 7);
  top: 42%;
}

.floating-icon:nth-child(8) {
  animation-delay: calc(-120s / 6.5 * 8);
  top: 48%;
}

.floating-icon:nth-child(9) {
  animation-delay: calc(-120s / 6.5 * 9);
  top: 54%;
}

.floating-icon:nth-child(10) {
  animation-delay: calc(-120s / 6.5 * 10);
  top: 60%;
}

/* Foreground图标特殊设置 */
.floating-icon.Foreground:nth-child(1) {
  animation-duration: calc(120s - 1 * 4s);
  height: calc(15% + 1 * 2.5%);
  font-size: 60px;
}

.floating-icon.Foreground:nth-child(3) {
  animation-duration: calc(120s - 3 * 4s);
  height: calc(15% + 3 * 2.5%);
  font-size: 64px;
}

.floating-icon.Foreground:nth-child(5) {
  animation-duration: calc(120s - 5 * 4s);
  height: calc(15% + 5 * 2.5%);
  font-size: 68px;
}

.floating-icon.Foreground:nth-child(8) {
  animation-duration: calc(120s - 8 * 4s);
  height: calc(15% + 8 * 2.5%);
  font-size: 72px;
}

/* Background图标特殊设置 */
.floating-icon.Background:nth-child(2) {
  animation-duration: calc(120s * 1.25 - 2 * 4s);
  height: calc(10% / 1.1 - 2 * 1.25%);
}

.floating-icon.Background:nth-child(4) {
  animation-duration: calc(120s * 1.25 - 4 * 4s);
  height: calc(10% / 1.1 - 4 * 1.25%);
}

.floating-icon.Background:nth-child(6) {
  animation-duration: calc(120s * 1.25 - 6 * 4s);
  height: calc(10% / 1.1 - 6 * 1.25%);
}

.floating-icon.Background:nth-child(7) {
  animation-duration: calc(120s * 1.25 - 7 * 4s);
  height: calc(10% / 1.1 - 7 * 1.25%);
}

.floating-icon.Background:nth-child(9) {
  animation-duration: calc(120s * 1.25 - 9 * 4s);
  height: calc(10% / 1.1 - 9 * 1.25%);
}

.floating-icon.Background:nth-child(10) {
  animation-duration: calc(120s * 1.25 - 10 * 4s);
  height: calc(10% / 1.1 - 10 * 1.25%);
}

/* 页面背景装饰 */
.page-background-decoration {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  background:
    linear-gradient(135deg, rgba(255, 107, 0, 0.03) 0%, rgba(255, 165, 0, 0.02) 25%, rgba(255, 140, 0, 0.015) 50%, rgba(255, 165, 0, 0.01) 75%, rgba(255, 107, 0, 0.02) 100%),
    radial-gradient(ellipse at 30% 20%, rgba(255, 140, 0, 0.025) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 80%, rgba(255, 165, 0, 0.02) 0%, transparent 60%),
    radial-gradient(circle at 50% 50%, rgba(255, 107, 0, 0.015) 0%, transparent 70%);
  background-size: 100% 100%, 800px 600px, 600px 800px, 1200px 1200px;
  background-position: 0% 0%, 0% 0%, 100% 100%, 50% 50%;
  animation: backgroundMove 90s ease-in-out infinite;
}

@keyframes backgroundMove {
  0%, 100% {
    background-position: 0% 0%, 0% 0%, 100% 100%, 50% 50%;
  }
  25% {
    background-position: 0% 0%, 100% 20%, 20% 80%, 30% 70%;
  }
  50% {
    background-position: 0% 0%, 80% 100%, 0% 0%, 70% 30%;
  }
  75% {
    background-position: 0% 0%, 20% 80%, 80% 20%, 40% 60%;
  }
}