/* ==================== 1. 全局基础样式 ==================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, "Microsoft Yahei", "Segoe UI", Roboto, Arial, sans-serif !important;
}
html, body {
  width: 100%;
  background-color: #f5f7fa;
  color: #333;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
.app-content {
  background-color: #f5f7fa !important;
  overflow-x: hidden;
}
.app-content a {
  color: #006BF5;
  text-decoration: none;
  transition: all 0.3s ease;
}

/* ==================== 2. 通用排版与文字样式 ==================== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; width: 100%; }
.app-content .title-h1 { font-size: 28px; color: #333; font-weight: bold; margin-bottom: 15px; text-align: center; }
.app-content .title-h2 { font-size: 24px; color: #333; font-weight: bold; margin-bottom: 20px; }
.app-content .title-h3 { font-size: 18px; color: #333; font-weight: bold; margin-bottom: 10px; }
.app-content .subtitle { font-size: 15px; color: #666; max-width: 800px; margin: 0 auto 30px; text-align: center; }
.app-content .text-sm { font-size: 14px; color: #666; }
.app-content .text-white { font-size: 20px; color: #e6f0ff; }
.app-content .text-faq { font-size: 16px; color: #333; font-weight: 600; }

/* ==================== 3. Banner 首屏区域 ==================== */
.app-content .banner-box {
  position: relative !important;
  width: 100% !important;
  height: 520px !important;
  background: url(/static/image/videoeet.png) center center / cover no-repeat !important;
  color: #fff !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
}
.app-content .banner-box::after {
  content: "" !important;
  position: absolute !important;
  inset: 0 !important;
  background: rgba(0, 20, 50, 0.72) !important;
  z-index: 1 !important;
}
.app-content .banner-box .container {
  position: relative !important;
  z-index: 2 !important;
  height: 100% !important;
}
.app-content .banner-wrap {
  width: 100% !important;
  height: 100% !important;
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  gap: 40px !important;
}
.app-content .banner-left {
  flex: 0 0 380px !important;
  height: 100% !important;
  display: flex !important;
  align-items: flex-end !important;
  justify-content: center !important;
}
.app-content .banner-img {
  width: 100% !important;
  max-height: 480px !important;
  object-fit: contain !important;
  display: block !important;
}
.app-content .banner-right {
  flex: 1 !important;
  display: flex !important;
  flex-direction: column !important;
  justify-content: center !important;
  min-width: 300px !important;
}
.app-content .banner-right h1 {
  font-size: 36px !important;
  color: #fff !important;
  font-weight: bold !important;
  margin-bottom: 15px !important;
  text-shadow: 0 0 8px rgba(0,0,0,0.4) !important;
}
.app-content .banner-right .text-white {
  font-size: 18px !important;
  margin-bottom: 30px !important;
  color: #e6f0ff !important;
  text-shadow: 0 0 6px rgba(0,0,0,0.35) !important;
}

/* ==================== 4. 二维码与通用按钮 ==================== */
.banner-qrcode-group, .qrcode-group {
  display: flex !important;
  gap: 30px !important;
}
.banner-qrcode-card, .qrcode-card {
  text-align: center !important;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  padding: 10px;
}
.banner-qrcode-card img, .qrcode-card img {
  width: 120px !important;
  height: 120px !important;
  border: 3px solid #fff !important;
  border-radius: 10px !important;
  margin: 0 auto 8px !important;
}
.banner-qrcode-card p, .qrcode-card p {
  font-size: 14px !important;
  margin: 0 !important;
  color: #fff;
}

/* 【已修复】通用按钮样式与 Hover 看不清的问题 */
.app-content a.download-btn,
.app-content .download-btn {
  padding: 16px 50px;
  background-color: #165DFF !important;
  color: #ffffff !important;
  font-size: 18px;
  font-weight: 600;
  border-radius: 50px;
  display: inline-block;
  transition: all 0.3s ease;
}
.app-content a.download-btn:hover,
.app-content .download-btn:hover {
  background-color: #ffd700 !important;
  color: #003b87 !important; /* 使用高对比度深蓝色 */
  box-shadow: 0 6px 16px rgba(255, 215, 0, 0.4);
}

/* 双下载按钮样式 (Android / iOS) - 强制文字与图标为白色 */
.app-btn-group { display: flex; gap: 15px; justify-content: flex-start; flex-wrap: wrap; margin-top: 20px; }

.app-content a.app-down-link,
.app-down-link,
.app-down-link * {
  color: #ffffff !important;
  text-decoration: none !important;
}

.app-down-link { 
  display: inline-flex; 
  align-items: center; 
  justify-content: center; 
  padding: 12px 24px; 
  border-radius: 6px; 
  font-weight: bold; 
  transition: all 0.3s; 
  min-width: 160px; 
  font-size: 15px; 
}

.btn-android { background-color: #10b981 !important; }
.btn-ios { background-color: #2563eb !important; }

.app-down-link:hover { 
  opacity: 0.9; 
  transform: translateY(-2px); 
  color: #ffffff !important; 
}

/* ==================== 5. 板块与表格组件 ==================== */
.app-content .features-section { padding: 80px 0; }
.app-content .features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; max-width: 1000px; margin: 0 auto; }
.app-content .feature-card { background-color: #f8fbff; padding: 30px 20px; border-radius: 12px; text-align: center; border: 1px solid #e8f1ff; transition: all 0.3s ease; }
.app-content .feature-card:hover { transform: translateY(-5px); box-shadow: 0 8px 20px rgba(0, 107, 245, 0.15); border-color: #006BF5; }
.app-content .feature-icon { font-family: "FontAwesome" !important; font-size: 40px; background: linear-gradient(135deg, #006BF5 0%, #0058d0 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 15px; display: inline-block; }

.site-feature-box { background: #fff; border-radius: 12px; padding: 25px; box-shadow: 0 4px 20px rgba(0,0,0,0.06); border: 1px solid #e2e8f0; margin-top: 20px; }
.spec-table { width: 100%; border-collapse: collapse; margin-top: 15px; background: #fff; }
.spec-table th, .spec-table td { border: 1px solid #cbd5e1; padding: 12px 15px; text-align: center; font-size: 14px; }
.spec-table th { background-color: #f1f5f9; color: #0f172a; font-weight: bold; }
.spec-table tr:nth-child(even) { background-color: #f8fafc; }

.step-flex { display: flex; gap: 20px; flex-wrap: wrap; margin-top: 15px; }
.step-item { flex: 1; min-width: 250px; background: #f8fafc; padding: 20px; border-radius: 8px; border-left: 4px solid #2563eb; text-align: left; }
.step-num { display: inline-block; width: 30px; height: 30px; background: #2563eb; color: #fff; border-radius: 50%; text-align: center; line-height: 30px; font-weight: bold; margin-bottom: 10px; }

/* 功能板块 */
.app-content .function-section { padding: 80px 0; background-color: #fff; }
.app-content .function-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 40px; align-items: center; margin-bottom: 40px; }
.app-content .function-img { width: 100%; border-radius: 12px; box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1); }
.app-content .function-text li { font-size: 15px; padding-left: 28px; margin-bottom: 15px; position: relative; list-style: none; color: #333; }
.app-content .function-text li::before { content: "✓"; position: absolute; left: 0; color: #006BF5; font-weight: 700; font-size: 18px; }

/* APP下载板块 */
.app-content .download-section { padding: 80px 0; background: url(/static/image/bgdl.png) center center / cover no-repeat; color: #fff; text-align: center; position: relative; z-index: 1; }
.app-content .download-section::before { content: ''; position: absolute; inset: 0; background: rgba(0, 20, 50, 0.75); z-index: -1; }
.app-content .download-section .title-h1 { color: #fff; }
.app-content .download-section .subtitle { color: #e6f0ff; }
.app-content .download-tips { font-size: 14px; color: #e6f0ff; opacity: 0.8; margin-top: 20px; }

/* FAQ板块 */
.app-content .faq-section { padding: 80px 0; }
.app-content .faq-item { border-bottom: 1px solid #e2e8f0; background-color: #fff; margin-bottom: 15px; border-radius: 8px; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08); }
.app-content .faq-question { padding: 20px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-weight: bold; font-size: 16px; color: #1e293b; }
.app-content .faq-question::after { content: "+"; font-size: 20px; color: #006BF5; }
.app-content .faq-item.active .faq-question::after { content: "-"; }
.app-content .faq-answer { font-size: 15px; color: #666; padding: 0 20px 20px; display: none; line-height: 1.6; }
.app-content .faq-item.active .faq-answer { display: block; }

/* ==================== 6. 响应式控制 & M端适配 ==================== */
.mobile-only { display: none !important; }
.desktop-only { display: flex !important; }

@media (max-width: 768px) {
  /* 【已修复】M端彻底隐藏所有二维码容器，仅保留下载按钮 */
  .desktop-only,
  .banner-qrcode-group, 
  .qrcode-group, 
  .banner-qrcode-card, 
  .qrcode-card,
  [class*="qrcode"] { 
    display: none !important; 
  }

  .mobile-only,
  .app-btn-group {
    display: flex !important;
  }

  /* M端排版微调 */
  .app-content .banner-box { height: auto !important; padding: 40px 0 !important; }
  .app-content .banner-box .container { height: auto !important; }
  .app-content .banner-wrap { flex-direction: column !important; align-items: center !important; gap: 30px !important; text-align: center !important; }
  .app-content .banner-right { order: 1 !important; width: 100% !important; min-width: unset !important; text-align: center !important; }
  .app-content .banner-left { order: 2 !important; flex: unset !important; width: 280px !important; height: auto !important; align-self: center !important; }
  .app-content .banner-img { max-width: 280px !important; width: 100% !important; height: auto !important; }
  .app-content .banner-right h1, .app-content .banner-right .text-white { text-align: center !important; }
  
  .app-btn-group { justify-content: center; width: 100%; }
  .app-btn-group .app-down-link { width: 100%; max-width: 280px; }
  .spec-table th, .spec-table td { padding: 8px 5px; font-size: 12px; }
  .step-item { min-width: 100%; }
  .app-content .features-grid { grid-template-columns: 1fr; }
}