/* style.css - 九章格物官网样式文件 */
/* 全局变量：低饱和度高级色值 */
:root {
  --primary-blue: #5294e8; /* 降低饱和度的主蓝 */
  --primary-purple: #8270e9; /* 降低饱和度的主紫 */
  --bg-light: #f9fafc; /* 更柔和的背景色 */
  --text-main: #2a3342; /* 主文本色（低对比） */
  --text-secondary: #58667b; /* 次要文本色 */
  --card-bg: #ffffff; /* 卡片背景 */
  --border-light: #e8f1ff; /* 浅蓝色边框 */
  --border-purple-light: #f0efff; /* 浅紫色边框 */
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg-light);
  color: var(--text-main);
  line-height: 1.65; /* 优化行高 */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 30px;
}

/* 全局平滑滚动 */
html {
  scroll-behavior: smooth;
}

/* 导航：吸顶+滚动渐变 + 高级阴影 */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky; /* 吸顶 */
  top: 20px;
  backdrop-filter: blur(12px);
  background: rgba(255,255,255,0.9);
  margin: 0 30px;
  border-radius: 16px;
  padding: 20px 32px;
  margin-top: 20px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04); /* 优化阴影 */
  z-index: 999;
  transition: all 0.5s ease; /* 滚动过渡 */
}
/* 滚动后导航样式 */
.nav.scrolled {
  top: 0;
  margin: 0;
  border-radius: 0 0 16px 16px;
  background: rgba(255,255,255,0.98); /* 更实的背景 */
  padding: 16px 32px; /* 轻微缩小高度 */
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06); /* 阴影加重 */
}
.logo-box {
  display: flex;
  align-items: center;
}
.logo-placeholder {
  width: 200px;
  height: 48px;
  border-radius: 8px;
  background: var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-blue);
  font-size: 14px;
  border: 1px dashed rgba(82, 148, 232, 0.3);
}
.logo-text {
  font-size: 22px;
  font-weight: 600;
  color: var(--primary-blue);
  margin-left: 16px;
  letter-spacing: 0.5px;
}
.logo-text span a {
  color: var(--text-main);
  font-weight: 400;
  text-decoration: none;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 40px;
}
.nav-menu a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.4s ease, transform 0.2s ease, opacity 0.2s ease; /* 优化过渡 */
  font-size: 16px;
  padding: 8px 0;
  position: relative;
  font-weight: 500;
  overflow: hidden; /* 点击反馈容器 */
}
/* 导航链接点击水波纹 */
.nav-menu a::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(82, 148, 232, 0.05);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.4s ease, height 0.4s ease;
}
.nav-menu a:active::before {
  width: 200px;
  height: 200px;
  opacity: 0;
}
.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-blue), var(--primary-purple));
  border-radius: 1px;
  transition: width 0.3s ease;
}
.nav-menu a:hover::after {
  width: 100%;
}
.nav-menu a:hover {
  color: var(--primary-blue);
  transform: translateY(-1px); /* 轻微上浮 */
  opacity: 0.95;
}

/* 下拉菜单 */
.dropdown {
  position: relative;
  display: inline-block;
}
.dropdown > a {
  cursor: pointer;
}
.dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--card-bg);
  min-width: 200px;
  box-shadow: 0 8px 24px rgba(82, 148, 232, 0.12);
  border-radius: 12px;
  padding: 16px 0;
  z-index: 9999;
  border: 1px solid rgba(82, 148, 232, 0.1);
}
.dropdown-content a {
  color: var(--text-secondary);
  padding: 12px 24px;
  display: block;
  border-radius: 8px;
  margin: 0 6px;
  font-size: 15px;
}
.dropdown-content a:hover {
  background: var(--border-light);
  color: var(--primary-blue);
}
.dropdown:hover .dropdown-content {
  display: block;
}

/* 首屏：大气布局 + 高级纹理 + 动态光效 + 视差滚动 */
.hero {
  padding: 150px 0 160px;
  text-align: center;
  background: linear-gradient(to bottom, #ffffff, var(--border-light));
  /* 细微噪点纹理 */
  background-image: url("data:image/svg+xml,%3Csvg width='20' height='20' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 0h20v20H0V0zm2 2v16h16V2H2z' fill='%23000' fill-opacity='0.01' fill-rule='evenodd'/%3E%3C/svg%3E");
  position: relative;
  overflow: hidden;
  margin: 20px 30px;
  border-radius: 24px;
}
/* 首屏动态光效 */
.hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(circle at 70% 30%, rgba(82, 148, 232, 0.05) 0%, transparent 60%);
  z-index: 0;
}
.hero .particle {
  position: absolute;
  border-radius: 50%;
  background: rgba(82, 148, 232, 0.1);
  animation: float 8s infinite ease-in-out;
  z-index: 0;
  transition: transform 0.2s ease; /* 视差滚动过渡 */
}
.hero .line {
  position: absolute;
  background: linear-gradient(90deg, rgba(82, 148, 232, 0.1), rgba(130, 112, 233, 0.1));
  height: 1px;
  animation: stretch 12s infinite ease-in-out;
  z-index: 0;
  transition: transform 0.2s ease; /* 视差滚动过渡 */
}
@keyframes float {
  0%,100% { transform: translate(0,0) scale(1); opacity: 0.7; }
  50% { transform: translate(15px,15px) scale(0.9); opacity: 0.9; }
}
@keyframes stretch {
  0%,100% { width: 100px; opacity: 0.5; }
  50% { width: 300px; opacity: 0.8; }
}
.hero .container {
  position: relative;
  z-index: 1;
}
.hero h1 {
  font-size: 52px;
  margin-bottom: 24px;
  background: linear-gradient(90deg, var(--primary-blue), var(--primary-purple));
  -webkit-background-clip: text;
  color: transparent;
  font-weight: 700;
  line-height: 1.25; /* 优化行高 */
  letter-spacing: -0.8px; /* 负间距更紧凑 */
}
.hero p {
  font-size: 22px;
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto 56px;
  font-weight: 400;
  line-height: 1.8;
}
.hero p strong {
  color: var(--primary-blue);
  font-weight: 600;
}

/* 按钮：高级样式 + 按压反馈 + 加载状态 */
.btn {
  padding: 18px 48px;
  background: linear-gradient(90deg, var(--primary-blue), var(--primary-purple));
  color: #fff;
  border-radius: 12px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  font-size: 18px;
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  box-shadow: 0 6px 20px rgba(82, 148, 232, 0.15);
  position: relative;
  overflow: hidden;
}
/* 按钮按压反馈 */
.btn::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}
.btn:active::after {
  width: 300px;
  height: 300px;
  opacity: 0;
}
/* 按钮加载状态 */
.btn.loading {
  pointer-events: none; /* 禁止重复点击 */
  opacity: 0.8;
  padding-left: 68px; /* 给加载图标留空间 */
}
.btn.loading::before {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.5);
  border-radius: 50%;
  border-top-color: #fff;
  left: 28px;
  top: 50%;
  transform: translateY(-50%);
  animation: spin 1s linear infinite;
}
@keyframes spin {
  to { transform: translateY(-50%) rotate(360deg); }
}
.btn:hover {
  transform: translateY(-4px) scale(1.02); /* 轻微放大+上浮 */
  box-shadow: 0 10px 28px rgba(82, 148, 232, 0.2);
}
.btn:active {
  transform: translateY(-2px) scale(0.98); /* 点击时轻微下沉 */
}

/* 板块标题通用样式 */
.section {
  padding: 80px 0;
}
.title {
  text-align: center;
  margin-bottom: 60px;
}
.title h2 {
  font-size: 36px;
  margin-bottom: 16px;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.2;
}
.title p {
  font-size: 18px;
  font-weight: 500;
  color: #334155;
  max-width: 750px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ========== 核心业务板块 - 蓝色系 + 高级视觉元素 ========== */
#service {
  background-color: #f5f9ff;
  margin: 0 30px;
  border-radius: 20px;
  padding: 80px 0;
}
#service .title h2 {
  color: var(--primary-blue);
}
.service-card-box {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  padding: 0 30px;
}
.service-card {
  background: var(--card-bg);
  /* 细微纹理 */
  background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%239C92AC' fill-opacity='0.02' fill-rule='evenodd'/%3E%3C/svg%3E");
  border-radius: 16px;
  padding: 40px 32px;
  transition: all 0.6s cubic-bezier(0.165, 0.84, 0.44, 1); /* 缓动曲线更自然 */
  border: 1px solid var(--border-light);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  /* 初始隐藏，用于渐入动画 */
  opacity: 0;
  transform: translateY(20px);
}
/* 核心业务卡片顶部渐变条 */
.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-blue), #6bb0f5);
}
/* 业务卡片高级视觉容器 */
.service-visual {
  width: 72px;
  height: 72px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--border-light), #e0edff);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  position: relative;
}
/* 核心业务视觉元素：简约几何图形 */
.service-visual::before {
  content: "";
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, var(--primary-blue), #6bb0f5);
  border-radius: 8px;
  opacity: 0.8;
}
/* 每个卡片的视觉元素差异化 */
.service-card:nth-child(1) .service-visual::before {
  border-radius: 50%; /* 圆形 */
}
.service-card:nth-child(2) .service-visual::before {
  border-radius: 8px; /* 矩形 */
  width: 30px;
  height: 18px;
}
.service-card:nth-child(3) .service-visual::before {
  border-radius: 4px; /* 细长矩形 */
  width: 30px;
  height: 4px;
  transform: rotate(45deg);
}
/* 卡片hover效果：高级阴影 + 边框光效 + 轻微放大 */
.service-card:hover {
  transform: translateY(-8px) scale(1.01); /* 轻微上浮+放大 */
  box-shadow: 0 24px 48px rgba(82, 148, 232, 0.1), 0 0 0 1px rgba(82, 148, 232, 0.2);
  border-color: var(--primary-blue);
}
/* 渐入动画激活 */
.service-card.animate-in {
  opacity: 1;
  transform: translateY(0);
}
.service-card h3 {
  font-size: 22px;
  margin-bottom: 16px;
  color: var(--primary-blue);
  font-weight: 600;
}
.service-card p {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 16px;
  line-height: 1.75; /* 优化行高 */
  letter-spacing: 0.2px; /* 轻微正间距 */
  flex: 1;
}
.service-card .tag {
  display: inline-block;
  padding: 6px 14px;
  background: var(--border-light);
  color: var(--primary-blue);
  border-radius: 24px;
  font-size: 14px;
  font-weight: 500;
}

/* ========== 核心优势板块 - 紫色系 + 高级视觉元素 ========== */
#advantage {
  margin: 60px 30px 0;
}
#advantage .title h2 {
  color: var(--primary-purple);
}
.advantage-card-box {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  padding: 0 30px;
}
.advantage-card {
  background: var(--card-bg);
  /* 细微纹理 */
  background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%239C92AC' fill-opacity='0.02' fill-rule='evenodd'/%3E%3C/svg%3E");
  border-radius: 16px;
  padding: 40px 32px;
  transition: all 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
  border: 1px solid var(--border-purple-light);
  position: relative;
  display: flex;
  flex-direction: column;
  /* 初始隐藏，用于渐入动画 */
  opacity: 0;
  transform: translateY(20px);
}
/* 核心优势卡片左侧纯色条 */
.advantage-card::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 4px;
  background: var(--primary-purple);
}
/* 优势卡片高级视觉容器 */
.advantage-visual {
  width: 72px;
  height: 72px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--border-purple-light), #e8e0ff);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  position: relative;
}
/* 核心优势视觉元素：简约几何图形 */
.advantage-visual::before {
  content: "";
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, var(--primary-purple), #9a88f0);
  border-radius: 8px;
  opacity: 0.8;
}
/* 每个卡片的视觉元素差异化 */
.advantage-card:nth-child(1) .advantage-visual::before {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  box-shadow: 0 0 0 8px rgba(130, 112, 233, 0.1);
}
.advantage-card:nth-child(2) .advantage-visual::before {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  clip-path: polygon(0 0, 100% 0, 100% 100%); /* 扇形 */
}
.advantage-card:nth-child(3) .advantage-visual::before {
  width: 30px;
  height: 8px;
  border-radius: 4px;
  box-shadow: 0 6px 0 0 rgba(130, 112, 233, 0.6), 0 12px 0 0 rgba(130, 112, 233, 0.3);
}
/* 卡片hover效果：高级阴影 + 边框光效 + 轻微放大 */
.advantage-card:hover {
  transform: translateY(-8px) scale(1.01); /* 轻微上浮+放大 */
  box-shadow: 0 24px 48px rgba(130, 112, 233, 0.1), 0 0 0 1px rgba(130, 112, 233, 0.2);
  border-color: var(--primary-purple);
}
/* 渐入动画激活 */
.advantage-card.animate-in {
  opacity: 1;
  transform: translateY(0);
}
.advantage-card h3 {
  font-size: 22px;
  margin-bottom: 16px;
  color: var(--primary-purple);
  display: flex;
  align-items: center;
  font-weight: 600;
}
/* 核心优势标题加小图标装饰（高级感对勾） */
.advantage-card h3::before {
  content: "✓";
  display: inline-block;
  width: 24px;
  height: 24px;
  line-height: 24px;
  text-align: center;
  background: var(--border-purple-light);
  color: var(--primary-purple);
  border-radius: 50%;
  margin-right: 12px;
  font-size: 14px;
  font-weight: 700;
}
.advantage-card p {
  color: var(--text-secondary);
  flex: 1;
  margin-bottom: 24px;
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.2px;
}
.advantage-card .tag {
  display: inline-block;
  padding: 6px 14px;
  background: var(--border-purple-light);
  color: var(--primary-purple);
  border-radius: 24px;
  font-size: 14px;
  font-weight: 500;
  align-self: flex-start;
}

/* 咨询板块：更大气 */
.consult-section {
  background: linear-gradient(135deg, var(--border-light), #e8f1ff);
  border-radius: 20px;
  margin: 60px 30px 40px;
  padding: 80px 0;
  text-align: center;
}
.consult-section h2 {
  font-size: 36px;
  margin-bottom: 16px;
  font-weight: 700;
  color: var(--text-main);
}
.consult-section p {
  font-size: 18px;
  color: var(--text-secondary);
  margin: 0 auto 40px;
  max-width: 700px;
  line-height: 1.7;
}

/* 弹窗：缓入缓出+缩放 */
.modal-mask {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.6);
  display: none;
  align-items: center; justify-content: center;
  z-index: 9999;
  backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}
.modal-mask[style*="display: flex"] { /* 兼容原有JS控制 */
  opacity: 1;
  visibility: visible;
}
.modal-box {
  background: var(--card-bg);
  border-radius: 20px;
  padding: 50px;
  max-width: 450px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,0.12); /* 优化阴影 */
  transform: scale(0.95);
  opacity: 0;
  transition: transform 0.4s ease, opacity 0.4s ease;
}
.modal-mask[style*="display: flex"] .modal-box {
  transform: scale(1);
  opacity: 1;
}
.modal-box h3 {
  font-size: 24px;
  margin-bottom: 20px;
  font-weight: 600;
}
.modal-box .phone {
  font-size: 32px;
  color: var(--primary-blue);
  font-weight: bold;
  margin: 24px 0;
  letter-spacing: 1px;
}
.modal-box p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}
.modal-close {
  padding: 12px 32px;
  background: var(--bg-light);
  border: 1px solid #E2E8F0;
  border-radius: 10px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  transition: all 0.3s ease;
}
.modal-close:hover {
  background: var(--border-light);
  border-color: var(--primary-blue);
  color: var(--primary-blue);
  transform: translateY(-2px);
}

/* 返回顶部按钮 */
#backToTop {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(90deg, var(--primary-blue), var(--primary-purple));
  color: #fff;
  border: none;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.4s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: 0 6px 20px rgba(82, 148, 232, 0.15);
  z-index: 998;
}
#backToTop:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(82, 148, 232, 0.2);
}

/* 底部：更大气的排版 */
.footer {
  padding: 60px 30px;
  text-align: center;
  font-size: 15px;
  color: var(--text-secondary);
  border-top: 1px solid #E2E8F0;
  background: var(--card-bg);
  line-height: 2;
  margin-top: 60px;
}

/* 响应式适配：保证移动端也大气 */
@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }
  .nav {
    margin: 0 20px;
    padding: 16px 20px;
  }
  .nav.scrolled {
    padding: 12px 20px;
  }
  .logo-placeholder {
    width: 160px;
    height: 40px;
  }
  .logo-text {
    font-size: 18px;
  }
  .nav-menu {
    gap: 20px;
  }
  .nav-menu a {
    font-size: 14px;
  }
  .hero {
    padding: 100px 0 110px;
    margin: 10px 20px;
    border-radius: 16px;
  }
  .hero h1 {
    font-size: 36px;
  }
  .hero p {
    font-size: 18px;
    max-width: 90%;
  }
  .btn {
    padding: 16px 36px;
    font-size: 16px;
  }
  .btn.loading {
    padding-left: 58px;
  }
  .section {
    padding: 60px 0;
  }
  .title h2 {
    font-size: 28px;
  }
  .title p {
    font-size: 16px;
  }
  .service-card-box, .advantage-card-box {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .service-card, .advantage-card {
    padding: 32px 24px;
  }
  #service {
    margin: 0 20px;
    padding: 60px 0;
  }
  #advantage {
    margin: 40px 20px 0;
  }
  .consult-section {
    margin: 40px 20px;
    padding: 60px 0;
  }
  .consult-section h2 {
    font-size: 28px;
  }
  #backToTop {
    width: 44px;
    height: 44px;
    font-size: 18px;
    bottom: 20px;
    right: 20px;
  }
  
  
    /* ========== 以上首页页面样式（优化版） ========== */
  
  
  
  
  
  
  /* ========== 关于我们页面样式（优化版） ========== */
.about-page {
  max-width: 1200px;
  margin: 40px auto;
  padding: 0 30px;
}

/* 页面标题 - 增强视觉层级 */
.about-header {
  text-align: center;
  margin: 60px 0 100px;
  position: relative;
  padding: 0 20px;
}
.about-header h1 {
  font-size: 48px;
  font-weight: 700;
  background: linear-gradient(90deg, var(--primary-blue), var(--primary-purple));
  -webkit-background-clip: text;
  color: transparent;
  margin-bottom: 24px;
  letter-spacing: -0.8px;
  line-height: 1.2;
}
.about-header .divider {
  width: 120px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-blue), var(--primary-purple));
  margin: 0 auto;
  border-radius: 4px;
  position: relative;
}
.about-header .divider::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 8px;
  background: rgba(82, 148, 232, 0.1);
  border-radius: 4px;
  z-index: -1;
}

/* 内容区块 - 高级卡片样式 */
.about-section {
  margin-bottom: 60px;
  background: var(--card-bg);
  border-radius: 20px;
  padding: 70px 80px;
  box-shadow: 0 8px 32px rgba(82, 148, 232, 0.06);
  border: 1px solid rgba(82, 148, 232, 0.1);
  position: relative;
  overflow: hidden;
  /* 细微纹理背景 */
  background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%239C92AC' fill-opacity='0.02' fill-rule='evenodd'/%3E%3C/svg%3E");
}
/* 卡片角落装饰 */
.about-section::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, rgba(82, 148, 232, 0.05), transparent);
  border-radius: 0 20px 0 100px;
  z-index: 0;
}

/* 章节标题 - 增强设计感 */
.about-section h2 {
  font-size: 32px;
  color: var(--text-main);
  margin-bottom: 40px;
  font-weight: 600;
  position: relative;
  padding-left: 30px;
  display: inline-block;
  z-index: 1;
}
.about-section h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 32px;
  background: linear-gradient(180deg, var(--primary-blue), var(--primary-purple));
  border-radius: 6px;
}
.about-section h2::after {
  content: "";
  position: absolute;
  left: 12px;
  bottom: -4px;
  width: 100%;
  height: 8px;
  background: rgba(82, 148, 232, 0.1);
  border-radius: 4px;
  z-index: -1;
}

/* 正文排版 - 提升阅读体验 */
.about-section p {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 30px;
  letter-spacing: 0.3px;
  text-align: justify;
}
.about-section p:last-child {
  margin-bottom: 0;
}

/* 列表样式 - 高级化 */
.about-section ul {
  margin: 30px 0 40px 0;
  padding-left: 0;
  list-style: none;
}
.about-section li {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 24px;
  position: relative;
  padding: 20px 24px 20px 60px;
  background: rgba(82, 148, 232, 0.03);
  border-radius: 12px;
  border-left: 3px solid var(--primary-blue);
}
.about-section li::before {
  content: "✓";
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  background: linear-gradient(90deg, var(--primary-blue), var(--primary-purple));
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
}
.about-section li strong {
  color: var(--text-main);
  font-weight: 600;
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}

/* 使命强调文本 */
.about-section p[style*="font-weight: 600"] {
  font-size: 19px;
  text-align: center;
  margin: 40px 0;
  letter-spacing: 0.5px;
  padding: 20px;
  background: linear-gradient(135deg, rgba(82, 148, 232, 0.08), rgba(130, 112, 233, 0.08));
  border-radius: 12px;
}

/* 联系方式区块 - 大幅优化 */
.contact-block {
  background: linear-gradient(135deg, var(--border-light), #f0f5ff);
  border-radius: 20px;
  padding: 60px 80px;
  margin-top: 50px;
  border: 1px solid rgba(82, 148, 232, 0.15);
}
.contact-block h3 {
  font-size: 26px;
  color: var(--text-main);
  margin-bottom: 40px;
  font-weight: 600;
  text-align: center;
  position: relative;
  padding-bottom: 20px;
}
.contact-block h3::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-blue), var(--primary-purple));
  border-radius: 3px;
}
.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 36px;
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(82, 148, 232, 0.05);
  transition: all 0.3s ease;
}
.contact-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(82, 148, 232, 0.1);
}
.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(90deg, var(--primary-blue), var(--primary-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 20px;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(82, 148, 232, 0.2);
}
.contact-text {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 响应式适配 - 保持移动端美观 */
@media (max-width: 768px) {
  .about-page {
    padding: 0 20px;
    margin: 20px auto;
  }
  .about-header {
    margin: 40px 0 70px;
  }
  .about-header h1 {
    font-size: 36px;
  }
  .about-section {
    padding: 40px 24px;
    margin-bottom: 40px;
  }
  .about-section h2 {
    font-size: 26px;
    padding-left: 20px;
  }
  .about-section p, .about-section li {
    font-size: 16px;
  }
  .about-section li {
    padding: 16px 20px 16px 50px;
  }
  .about-section li::before {
    width: 24px;
    height: 24px;
    font-size: 12px;
  }
  .contact-block {
    padding: 40px 24px;
  }
  .contact-block h3 {
    font-size: 22px;
  }
  .contact-info {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .contact-item {
    padding: 16px;
  }
  .contact-icon {
    width: 40px;
    height: 40px;
    font-size: 18px;
  }
}
/* 关于我们页面样式（优化版） */
:root {
  --primary: #5294e8;
  --text-main: #2a3342;
  --text-secondary: #58667b;
  --text-light: #8a94a6;
  --border: #e5e9f2;
  --bg: #f9fafc;
  --card-bg: #ffffff;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg);
  color: var(--text-main);
  line-height: 1.8;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 30px;
}

/* 导航样式 */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 30px 0;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border);
}
.logo-box {
  display: flex;
  align-items: center;
  gap: 15px;
}
.logo-placeholder {
  width: 56px;
  height: 56px;
  background: var(--primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-size: 12px;
  text-align: center;
}
.logo-text {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-main);
}
.logo-text span {
  color: var(--primary);
  font-weight: 400;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-menu a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 16px;
  font-weight: 500;
}
.nav-menu a:hover,
.nav-menu a[href="about.html"] {
  color: var(--primary);
}
.btn {
  background: var(--primary);
  color: white !important;
  padding: 12px 28px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
}

/* 主标题 */
.main-title {
  font-size: 40px;
  font-weight: 700;
  color: var(--text-main);
  text-align: center;
  margin: 40px 0 60px;
  line-height: 1.3;
}

/* 章节标题 */
.section-title {
  font-size: 26px;
  font-weight: 600;
  color: var(--text-main);
  margin: 50px 0 25px;
}

/* 正文 */
.content-paragraph {
  font-size: 17px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  text-align: justify;
}

/* 列表 */
.content-list {
  margin: 24px 0 36px 24px;
}
.content-list li {
  font-size: 17px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}
.content-list li strong {
  color: var(--text-main);
  font-weight: 600;
}

/* 联系方式 */
.contact-area {
  margin: 60px 0;
  padding: 40px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.contact-area h3 {
  font-size: 24px;
  font-weight: 600;
  text-align: center;
  margin-bottom: 36px;
  color: var(--text-main);
  position: relative;
  padding-bottom: 16px;
}
.contact-area h3::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 2px;
  background-color: var(--primary);
  border-radius: 1px;
}
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  border-radius: 8px;
  background-color: rgba(82, 148, 232, 0.03);
}
.contact-icon {
  width: 32px;
  height: 32px;
  background-color: var(--primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 14px;
}
.contact-text {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.contact-label {
  font-weight: 600;
  color: var(--text-main);
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
}

/* 底部 */
.footer {
  color: var(--text-light);
  text-align: center;
  padding: 30px 20px;
  font-size: 14px;
  margin-top: 80px;
  border-top: 1px solid var(--border);
  background-color: var(--bg);
}

/* 响应式适配 */
@media (max-width: 768px) {
  .nav {
    flex-wrap: wrap;
    gap: 20px;
  }
  .nav-menu {
    width: 100%;
    justify-content: center;
    gap: 20px;
  }
  .main-title {
    font-size: 30px;
  }
  .section-title {
    font-size: 22px;
  }
  body {
    padding: 0 20px;
  }
  .contact-area {
    padding: 24px;
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .contact-item {
    padding: 12px;
  }
}

}

/* geobook-全局变量定义（统一配色） */
/* 全局变量定义（统一配色） */
.geobook {
  --primary: #0A66C2;
  --primary-light: #1976D2;
  --primary-dark: #0855A8;
  --accent: #E64340;
  --accent-light: #F05754;
  --accent-dark: #D13A37;
  --consult: #2D9CDB;
  --consult-light: #4BA8E0;
  --consult-dark: #2587C8;
  --gray-light: #F5F7FA;
  --gray-mid: #E4E7EB;
  --gray-dark: #6B7280;
  --text-main: #1F2937;
  --text-secondary: #4B5563;
  --bg-white: #FFFFFF;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.15);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* 全局重置 */
.geobook * {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
.geobook body {
  background-color: #F9F9F9;
  font-family: 'Inter', "Microsoft YaHei", sans-serif;
  line-height: 1.5;
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
}

/* 骨架屏 */
.geobook .skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* 书籍容器 */
.geobook .book-wrapper {
  max-width: 1200px;
  margin: 20px auto;
  padding: 0 15px;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--transition-normal);
}
.geobook .book-wrapper:hover {
  box-shadow: var(--shadow-md);
}

/* 头部 */
.geobook .book-header {
  padding: 20px 25px;
  border-bottom: 1px solid var(--gray-mid);
  background: linear-gradient(to right, #fff, #fafafa);
}
.geobook .book-title {
  font-size: clamp(18px, 3vw, 24px);
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.4;
  text-shadow: 0 1px 2px rgba(0,0,0,0.02);
  word-wrap: break-word;
  word-break: break-word;
  white-space: normal;
}
.geobook .book-subtitle {
  font-size: 14px;
  color: var(--gray-dark);
  margin-bottom: 0;
  line-height: 1.5;
  font-style: italic;
  word-wrap: break-word;
  word-break: break-word;
}

/* 主体布局 */
.geobook .book-main {
  display: flex;
  flex-wrap: wrap;
  padding: 25px;
  gap: 30px;
  align-items: flex-start;
}
@media (max-width: 768px) {
  .geobook .book-main {
    padding: 15px;
    gap: 20px;
  }
}

/* 封面容器 */
.geobook .book-cover-container {
  width: 400px;
  flex-shrink: 0;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 20px;
  /*box-shadow: var(--shadow-sm); */
  position: relative;
  transition: all var(--transition-normal);
}
@media (max-width: 768px) {
  .geobook .book-cover-container {
    width: 100%;
    padding: 15px;
  }
}
.geobook .book-cover-container:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* 封面图片 */
.geobook .book-cover {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  background: #FFF;
  padding: 10px;
  object-fit: contain;
  opacity: 0;
  animation: fadeIn var(--transition-slow) forwards;
}
@keyframes fadeIn {
  to { opacity: 1; }
}
.geobook .book-cover:hover {
  transform: scale(1.015);
  box-shadow: var(--shadow-lg);
}

/* 信息区 */
.geobook .book-info {
  flex: 1;
  min-width: 300px;
  padding: 10px 0;
}
@media (max-width: 768px) {
  .geobook .book-info {
    min-width: 100%;
  }
}

/* 价格区域 */
.geobook .book-price-area {
  margin: 20px 0;
  padding: 15px;
  background: #FFF8F8;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  width: 100%;
}
.geobook .book-price-original {
  font-size: 14px;
  color: var(--gray-dark);
  text-decoration: line-through;
  margin-right: 10px;
  white-space: nowrap;
}
.geobook .book-price {
  font-size: clamp(24px, 5vw, 32px);
  color: var(--accent);
  font-weight: 700;
  display: inline-block;
  margin-right: 10px;
  position: relative;
  white-space: nowrap;
}
.geobook .book-price::after {
  content: "限时特惠";
  font-size: 12px;
  color: white;
  background: var(--accent);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  position: absolute;
  top: -10px;
  right: -60px;
}
@media (max-width: 480px) {
  .geobook .book-price::after {
    display: none;
  }
}
.geobook .book-price-desc {
  font-size: 14px;
  color: var(--accent);
  font-weight: 500;
  white-space: nowrap;
}

/* 按钮组 */
.geobook .book-actions {
  display: flex;
  gap: 15px;
  margin: 30px 0;
  flex-wrap: wrap;
  width: 100%;
}
.geobook .book-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-light) 100%);
  color: #fff;
  padding: 15px 35px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-width: 180px;
  height: 48px;
  box-shadow: 0 2px 4px rgba(230, 67, 64, 0.2);
  gap: 8px;
  white-space: nowrap;
}
@media (max-width: 768px) {
  .geobook .book-btn {
    width: 100%;
    min-width: unset;
  }
}
.geobook .book-btn::before {
  content: "🛒";
  font-size: 18px;
}
.geobook .book-btn:hover {
  background: linear-gradient(90deg, var(--accent-dark) 0%, var(--accent) 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(230, 67, 64, 0.3);
}
.geobook .book-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(230, 67, 64, 0.2);
}
.geobook .book-btn-secondary {
  background: var(--bg-white);
  color: var(--consult);
  border: 1px solid var(--consult);
  box-shadow: none;
}
.geobook .book-btn-secondary::before {
  content: "📞";
  font-size: 18px;
}
.geobook .book-btn-secondary:hover {
  background: var(--gray-light);
  color: var(--consult-dark);
  border-color: var(--consult-dark);
  box-shadow: 0 2px 8px rgba(45, 156, 219, 0.15);
  transform: translateY(-2px);
}
.geobook .book-btn-secondary:active {
  transform: translateY(0);
}

/* 卖点 */
.geobook .book-highlights {
  background: #FFF8F8;
  border-left: 3px solid var(--accent);
  padding: 15px 20px;
  margin: 20px 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  box-shadow: 0 2px 8px rgba(230, 67, 64, 0.05);
  width: 100%;
}
.geobook .book-highlights-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--primary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  word-wrap: break-word;
}
.geobook .book-highlights-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  width: 100%;
}
.geobook .book-highlights-item {
  font-size: 14px;
  color: var(--text-secondary);
  padding: 6px 12px;
  background: white;
  border-radius: var(--radius-full);
  border: 1px solid var(--gray-mid);
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.geobook .book-highlights-item:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px rgba(230, 67, 64, 0.1);
}

/* 详情区 */
.geobook .book-details {
  padding: 0 25px 25px;
  border-top: 1px solid var(--gray-mid);
  width: 100%;
  overflow-x: hidden;
}
@media (max-width: 768px) {
  .geobook .book-details {
    padding: 0 15px 15px;
  }
}
.geobook .section-title {
  font-size: clamp(16px, 3vw, 20px);
  font-weight: 600;
  margin: 30px 0 15px;
  color: var(--text-main);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--gray-light);
  display: flex;
  align-items: center;
  gap: 8px;
  word-wrap: break-word;
  word-break: break-word;
}
.geobook .section-title::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 20px;
  background: var(--accent);
  border-radius: var(--radius-full);
}
.geobook .chapter-title {
  font-size: clamp(14px, 2.5vw, 18px);
  font-weight: 600;
  color: var(--primary);
  margin: 20px 0 10px 0;
  padding-left: 10px;
  border-left: 3px solid var(--primary);
  word-wrap: break-word;
}
.geobook .subchapter-title {
  font-size: clamp(13px, 2vw, 16px);
  font-weight: 500;
  color: var(--text-main);
  margin: 15px 0 8px 0;
  padding-left: 8px;
  border-left: 3px solid var(--primary-light);
  word-wrap: break-word;
}
.geobook .book-desc p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 12px;
  text-align: justify;
  padding: 0 4px;
  word-wrap: break-word;
  word-break: break-word;
}
/*.geobook .book-desc p:first-of-type::first-letter {
  font-size: 18px;
  font-weight: 600;
  color: var(--accent);
} */
.geobook .book-list {
  padding-left: 20px;
  line-height: 1.8;
  color: var(--text-secondary);
  width: 100%;
}
@media (max-width: 768px) {
  .geobook .book-list {
    padding-left: 15px;
  }
}
.geobook .book-list.level-2 {
  padding-left: 40px;
}
@media (max-width: 768px) {
  .geobook .book-list.level-2 {
    padding-left: 30px;
  }
}
.geobook .book-list li {
  margin-bottom: 8px;
  position: relative;
  padding-left: 8px;
  font-size: 15px;
  transition: color var(--transition-fast);
  word-wrap: break-word;
  word-break: break-word;
}
.geobook .book-list li:hover {
  color: var(--accent);
}
.geobook .book-list li::before {
  content: "•";
  color: var(--primary);
  position: absolute;
  left: -12px;
  font-weight: 700;
  font-size: 16px;
}

/* 弹窗 */
.geobook .modal-mask {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  backdrop-filter: blur(4px);
  animation: fadeIn 0.3s ease-out;
  overflow: hidden;
}
.geobook .modal-box {
  background: #fff;
  padding: 0;
  border-radius: var(--radius-md);
  max-width: 500px;
  width: 92%;
  text-align: center;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: scale(0.98);
  animation: popIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}
@keyframes popIn {
  0% { transform: scale(0.98); opacity: 0; }
  70% { transform: scale(1.02); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}
.geobook .modal-header {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
  color: #fff;
  padding: 18px;
  font-size: 18px;
  font-weight: 600;
  position: relative;
  width: 100%;
  word-wrap: break-word;
}
.geobook .modal-close-icon {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}
.geobook .modal-close-icon:hover {
  background: rgba(255,255,255,0.4);
  transform: rotate(90deg);
}
.geobook .modal-content {
  padding: 25px 20px 15px;
  overflow-y: auto;
  flex: 1;
  width: 100%;
}
.geobook .modal-close {
  margin: 0 20px 20px;
  padding: 12px 30px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  transition: all var(--transition-fast);
  width: calc(100% - 40px);
  white-space: nowrap;
}
.geobook .modal-close:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(230, 67, 64, 0.2);
}
.geobook .pay-qrcode {
  width: 250px;
  height: 300px;
  margin: 10px auto 20px;
  border: 1px solid var(--gray-mid);
  padding: 10px;
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}
.geobook .pay-qrcode:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}
.geobook .wechat-qrcode {
  width: 240px;
  height: 240px;
  margin: 10px auto 20px;
  border: 1px solid var(--gray-mid);
  padding: 10px;
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}
.geobook .wechat-qrcode:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}
.geobook .pay-desc {
  color: var(--text-secondary);
  line-height: 1.8;
  margin: 10px 0 20px;
  font-size: 15px;
  padding: 15px;
  background: var(--gray-light);
  border-radius: var(--radius-md);
  text-align: left;
  word-wrap: break-word;
  word-break: break-word;
}
.geobook .pay-desc strong {
  color: var(--accent);
  font-weight: 600;
}
.geobook .contact-info {
  font-size: 16px;
  line-height: 2.5;
  color: var(--text-main);
  margin: 10px 0 15px;
  padding: 20px;
  background: var(--gray-light);
  border-radius: var(--radius-md);
  text-align: left;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  word-wrap: break-word;
  width: 100%;
}
.geobook .contact-info .label {
  display: inline-block;
  width: 80px;
  color: var(--gray-dark);
  font-weight: 500;
  white-space: nowrap;
}
@media (max-width: 480px) {
  .geobook .contact-info .label {
    width: 60px;
  }
}
.geobook .contact-info span {
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.5px;
  cursor: pointer;
  word-wrap: break-word;
}
.geobook .contact-info span[onclick] {
  text-decoration: underline;
}
.geobook .contact-tips {
  color: var(--text-secondary);
  margin: 10px 0 15px;
  font-size: 14px;
  padding: 12px;
  background: #FFF8F8;
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  text-align: left;
  word-wrap: break-word;
}

/* 导航 */
.geobook .nav {
  background: white;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  padding: 10px 20px;
  position: sticky;
  top: 0;
  z-index: 999;
}
.geobook .logo-box {
  display: flex;
  align-items: center;
  gap: 10px;
}
.geobook .logo-box img {
  width: 150px;
}
.geobook .logo-text {
  font-size: 16px;
  color: var(--text-main);
  font-weight: 600;
}
.geobook .nav-menu {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 10px;
}
.geobook .nav-menu a {
  text-decoration: none;
  color: var(--text-main);
  font-size: 14px;
}
.geobook .dropdown {
  position: relative;
}
.geobook .dropdown-content {
  display: none;
  position: absolute;
  background: white;
  min-width: 150px;
  box-shadow: var(--shadow-sm);
  padding: 10px 0;
  z-index: 100;
}
.geobook .dropdown:hover .dropdown-content {
  display: block;
}
.geobook .dropdown-content a {
  display: block;
  padding: 8px 15px;
}
.geobook .btn {
  background: var(--primary);
  color: white;
  padding: 12px 28px;
  font-size: 16px;
  border-radius: var(--radius-sm);
  text-decoration: none;
}

/* 回到顶部 */
.geobook .back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  display: none;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
  z-index: 998;
}
.geobook .back-to-top:hover {
  transform: translateY(-5px);
  background: var(--accent-dark);
  box-shadow: var(--shadow-lg);
}
.geobook .back-to-top.show {
  display: flex;
}

/* 底部 */
.geobook .footer {
  padding: 20px;
  text-align: center;
  font-size: 14px;
  color: var(--gray-dark);
}

/* 响应式 */
@media (max-width: 480px) {
  .geobook .book-header {
    padding: 15px;
  }
  .geobook .book-main {
    padding: 10px;
  }
  .geobook .back-to-top {
    width: 40px;
    height: 40px;
    bottom: 20px;
    right: 20px;
  }
}


/* 创始人页面 独立样式 */
.founder-wrapper {
  max-width: 960px;
  margin: 60px auto;
  padding: 0 30px;
}
.founder-heading {
  text-align: left;
  font-size: 38px;
  font-weight: 700;
  margin-bottom: 50px;
  color: var(--text-main);
  font-family: 'Inter', 'Microsoft YaHei', 'PingFang SC', sans-serif;
}
.founder-desc {
  font-family: 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', 'Inter', sans-serif;
  font-size: 16px;
  line-height: 2;
  color: var(--text-secondary);
  text-align: justify;
  letter-spacing: 0.3px;
  font-weight: 400;
}
.founder-desc p {
  margin-bottom: 24px;
}