/* ============================================
   AI法律工具社 - 全站统一样式
   导航栏 / 页脚 / 浮动侧边栏 / 通用组件
   ============================================ */

/* ===== 顶部导航栏 ===== */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  background: rgba(26, 60, 110, 0.0);
  backdrop-filter: blur(0px);
  -webkit-backdrop-filter: blur(0px);
  transition: all 0.3s ease;
  border-bottom: 1px solid rgba(255,255,255,0.0);
}
.site-nav.scrolled {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 2px 20px rgba(0,0,0,0.06);
  border-bottom: 1px solid rgba(0,0,0,0.04);
}
.site-nav.scrolled .nav-logo,
.site-nav.scrolled .nav-link { color: #1A3C6E; }
.site-nav.scrolled .nav-link:hover { color: #FF6B35; }
.site-nav.scrolled .nav-cta {
  background: #FF6B35;
  color: #fff;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.nav-logo {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color 0.3s ease;
  text-decoration: none;
}
.nav-logo-icon {
  font-size: 24px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}
.nav-link {
  display: inline-block;
  padding: 8px 16px;
  color: #fff;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.2s ease;
}
.nav-link:hover {
  background: rgba(255,255,255,0.1);
  color: #FF6B35;
}
.site-nav.scrolled .nav-link:hover {
  background: rgba(255,107,53,0.08);
}
.nav-link.active {
  color: #FF6B35;
  font-weight: 600;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-cta {
  display: inline-block;
  padding: 9px 20px;
  background: rgba(255,255,255,0.15);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 24px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  backdrop-filter: blur(10px);
}
.nav-cta:hover {
  background: #FF6B35;
  border-color: #FF6B35;
  transform: translateY(-1px);
}

/* 移动端汉堡菜单（先隐藏） */
.nav-toggle { display: none; }

/* ===== 浮动侧边栏 ===== */
.float-sidebar {
  position: fixed;
  right: 20px;
  bottom: 80px;
  z-index: 9990;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.float-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  border: none;
  padding: 0;
}
.float-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}
.float-btn .float-icon { font-size: 20px; }
.float-btn .float-label {
  font-size: 9px;
  color: #1A3C6E;
  font-weight: 500;
  margin-top: 1px;
}
.float-btn.primary {
  background: linear-gradient(135deg, #FF6B35, #ff8a5c);
  box-shadow: 0 4px 16px rgba(255,107,53,0.4);
}
.float-btn.primary .float-label { color: #fff; }

/* 进群二维码弹窗 */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.show { display: flex; }
.modal-content {
  background: #fff;
  border-radius: 16px;
  padding: 28px 24px 24px;
  max-width: 340px;
  width: 100%;
  text-align: center;
  position: relative;
  animation: modalIn 0.3s ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.modal-close {
  position: absolute;
  top: 12px;
  right: 14px;
  width: 28px;
  height: 28px;
  border: none;
  background: #f0f2f5;
  border-radius: 50%;
  cursor: pointer;
  font-size: 14px;
  color: #666;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal-title {
  font-size: 18px;
  font-weight: 700;
  color: #1A3C6E;
  margin-bottom: 4px;
}
.modal-title span { color: #FF6B35; }
.modal-subtitle {
  font-size: 13px;
  color: #6B7A90;
  margin-bottom: 18px;
}
.modal-qrcode {
  width: 200px;
  height: 200px;
  margin: 0 auto 14px;
  background: #f0f2f5;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #999;
  font-size: 13px;
  border: 2px dashed #d0d5dd;
}
.modal-tip {
  font-size: 13px;
  color: #1A3C6E;
  font-weight: 500;
}
.modal-tip strong { color: #FF6B35; }

/* ===== 页脚 Footer ===== */
.site-footer {
  background: #0F2749;
  color: #fff;
  padding: 56px 32px 24px;
  margin-top: 0;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .footer-logo {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-slogan {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 14px;
  line-height: 1.7;
}
.footer-desc {
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  line-height: 1.8;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #fff;
}
.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col li a {
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  font-size: 13px;
  transition: color 0.2s;
}
.footer-col li a:hover { color: #FF6B35; }

.footer-bottom {
  max-width: 1100px;
  margin: 0 auto;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(255,255,255,0.35);
}

/* ===== 分享呼吁模块 ===== */
.share-banner {
  background: linear-gradient(135deg, #FFF5EE, #FFE8D6);
  padding: 32px 20px;
  text-align: center;
}
.share-banner p {
  font-size: 15px;
  color: #1A3C6E;
  font-weight: 500;
  line-height: 1.8;
  margin-bottom: 0;
}
.share-banner p strong { color: #FF6B35; }

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .site-nav {
    height: 56px;
    padding: 0 16px;
  }
  .nav-logo { font-size: 16px; }
  .nav-logo-icon { font-size: 20px; }
  .nav-links { display: none; }
  .nav-cta {
    padding: 7px 14px;
    font-size: 12px;
  }

  .float-sidebar {
    right: 12px;
    bottom: 70px;
    gap: 8px;
  }
  .float-btn {
    width: 44px;
    height: 44px;
  }
  .float-btn .float-icon { font-size: 16px; }
  .float-btn .float-label { font-size: 8px; }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

/* body padding 补偿固定导航栏 */
body {
  padding-top: 0;
}
body.with-fixed-nav {
  padding-top: 64px;
}
@media (max-width: 768px) {
  body.with-fixed-nav { padding-top: 56px; }
}

/* ===== 导航栏搜索 ===== */
.nav-search-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
  color: #fff;
  transition: all 0.2s;
  margin-right: 4px;
}
.nav-search-icon:hover {
  background: rgba(255,255,255,0.1);
}
.site-nav.scrolled .nav-search-icon {
  color: #1A3C6E;
}
.site-nav.scrolled .nav-search-icon:hover {
  background: rgba(26,60,110,0.08);
}

/* 全局搜索弹层 */
.global-search-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 39, 73, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 15000;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 120px;
}
.global-search-overlay.show { display: flex; }
.global-search-box {
  width: 100%;
  max-width: 560px;
  margin: 0 20px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
  overflow: hidden;
  animation: searchDrop 0.25s ease;
}
@keyframes searchDrop {
  from { opacity: 0; transform: translateY(-20px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.global-search-input-wrap {
  position: relative;
  padding: 20px 20px 16px;
  border-bottom: 1px solid #F0F2F5;
}
.global-search-icon {
  position: absolute;
  left: 36px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  color: #999;
  pointer-events: none;
}
.global-search-input {
  width: 100%;
  padding: 14px 16px 14px 48px;
  background: #F7F9FC;
  border: 2px solid transparent;
  border-radius: 12px;
  font-size: 16px;
  color: #1A3C6E;
  outline: none;
  transition: all 0.2s;
}
.global-search-input:focus {
  background: #fff;
  border-color: #FF6B35;
}
.global-search-input::placeholder { color: #A0AAB8; }
.global-search-results {
  max-height: 420px;
  overflow-y: auto;
  padding: 8px;
}
.global-search-result-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  border-radius: 10px;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  transition: background 0.15s;
}
.global-search-result-item:hover { background: #F7F9FC; }
.global-search-result-icon {
  font-size: 22px;
  width: 40px;
  height: 40px;
  background: #FFF5EE;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.global-search-result-info { flex: 1; min-width: 0; }
.global-search-result-name {
  font-size: 15px;
  font-weight: 600;
  color: #1A3C6E;
  margin-bottom: 2px;
}
.global-search-result-desc {
  font-size: 12px;
  color: #8A95A8;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.global-search-result-price {
  font-size: 14px;
  font-weight: 700;
  color: #FF6B35;
  flex-shrink: 0;
}
.global-search-no-result {
  padding: 40px 20px;
  text-align: center;
}
.global-search-no-result-icon { font-size: 36px; margin-bottom: 8px; }
.global-search-no-result-text { font-size: 14px; color: #666; margin-bottom: 4px; }
.global-search-no-result-tip {
  font-size: 13px;
  color: #FF6B35;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
}
.global-search-hint {
  padding: 12px 20px;
  border-top: 1px solid #F0F2F5;
  font-size: 12px;
  color: #8A95A8;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.global-search-hint kbd {
  display: inline-block;
  padding: 2px 8px;
  background: #F0F2F5;
  border-radius: 4px;
  font-family: monospace;
  font-size: 11px;
  color: #666;
}
.global-search-category-label {
  padding: 8px 14px 4px;
  font-size: 11px;
  font-weight: 600;
  color: #8A95A8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

@media (max-width: 768px) {
  .nav-search-icon { display: none; }
  .global-search-overlay { padding-top: 80px; }
  .global-search-box { margin: 0 12px; }
}

/* ===== 热门计算器快捷入口（首页Hero区） ===== */
.hot-calc-tags {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: -24px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.hot-calc-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 20px;
  color: rgba(255,255,255,0.85);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  backdrop-filter: blur(8px);
  transition: all 0.2s ease;
}
.hot-calc-tag:hover {
  background: rgba(255,107,53,0.25);
  border-color: #FF6B35;
  color: #fff;
  transform: translateY(-1px);
}
.hot-calc-tag .hot-icon { font-size: 16px; }
.hot-calc-tag .hot-label { color: #FFB199; font-size: 11px; margin-right: 2px; }

/* ===== 升级版进群弹窗 ===== */
.modal-benefits {
  text-align: left;
  margin: 16px 0 20px;
  padding: 14px 16px;
  background: #F7F9FC;
  border-radius: 10px;
}
.modal-benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 6px 0;
  font-size: 13px;
  color: #1A3C6E;
  line-height: 1.5;
}
.modal-benefit-item .benefit-icon {
  flex-shrink: 0;
  font-size: 14px;
  margin-top: 1px;
}
.modal-qr-footer {
  margin-top: 12px;
  font-size: 12px;
  color: #6B7A90;
}
.modal-qr-footer strong { color: #FF6B35; font-weight: 600; }

/* ===== 双路径领工具包弹窗 ===== */
.modal-content.wide-modal {
  max-width: 560px;
  padding: 32px 28px 24px;
}
.dual-path {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 20px 0 12px;
}
.dual-path-item {
  background: #F7F9FC;
  border-radius: 14px;
  padding: 18px 14px;
  text-align: center;
  border: 2px solid transparent;
  transition: all 0.2s;
}
.dual-path-item.primary {
  background: #FFF5EE;
  border-color: rgba(255,107,53,0.3);
}
.dual-path-icon { font-size: 32px; margin-bottom: 8px; }
.dual-path-title {
  font-size: 15px;
  font-weight: 700;
  color: #1A3C6E;
  margin-bottom: 2px;
}
.dual-path-item.primary .dual-path-title { color: #FF6B35; }
.dual-path-sub {
  font-size: 12px;
  color: #8A95A8;
  margin-bottom: 12px;
}
.dual-path-qr {
  width: 120px;
  height: 120px;
  margin: 0 auto 10px;
  background: #fff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed #D0D5DD;
  color: #999;
  font-size: 11px;
}
.dual-path-item.primary .dual-path-qr {
  border-color: #FFB199;
  color: #FF6B35;
}
.dual-path-feature {
  font-size: 12px;
  color: #555;
  line-height: 1.6;
  padding: 4px 0;
}
.dual-path-feature strong { color: #FF6B35; }
.dual-path-tip {
  font-size: 11px;
  color: #8A95A8;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed #E5E7EB;
  line-height: 1.5;
}
.modal-bottom-note {
  text-align: center;
  font-size: 13px;
  color: #6B7A90;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid #F0F2F5;
}
.modal-bottom-note strong { color: #FF6B35; font-weight: 600; }

/* ===== 交叉推荐模块 ===== */
.cross-sell-section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 60px 24px;
  background: #F7F9FC;
}
.cross-sell-header {
  text-align: center;
  margin-bottom: 32px;
}
.cross-sell-header h3 {
  font-size: 24px;
  font-weight: 700;
  color: #1A3C6E;
  margin-bottom: 8px;
}
.cross-sell-header p {
  font-size: 14px;
  color: #6B7A90;
}
.cross-sell-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.cross-sell-card {
  background: #fff;
  border-radius: 14px;
  padding: 24px 20px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
  transition: all 0.3s ease;
  border: 1px solid transparent;
}
.cross-sell-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(26,60,110,0.1);
}
.cross-sell-card-icon { font-size: 32px; margin-bottom: 12px; }
.cross-sell-card-name {
  font-size: 16px;
  font-weight: 700;
  color: #1A3C6E;
  margin-bottom: 6px;
}
.cross-sell-card-desc {
  font-size: 13px;
  color: #8A95A8;
  line-height: 1.6;
  margin-bottom: 16px;
}
.cross-sell-btn {
  display: inline-block;
  padding: 8px 20px;
  background: #FF6B35;
  color: #fff;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
}
.cross-sell-btn:hover { background: #e85a28; }
.cross-sell-btn.ghost {
  background: #E5E9EF;
  color: #8A95A8;
}
.cross-sell-btn.ghost:hover {
  background: #d5dae2;
  color: #666;
}
.cross-sell-badge {
  display: inline-block;
  padding: 2px 8px;
  background: #FFF5EE;
  color: #FF6B35;
  font-size: 11px;
  font-weight: 600;
  border-radius: 6px;
  margin-bottom: 8px;
}
.cross-sell-badge.coming {
  background: #F0F2F5;
  color: #8A95A8;
}

/* ===== 更新日志页 ===== */
.changelog-page {
  max-width: 760px;
  margin: 0 auto;
  padding: 120px 24px 80px;
}
.changelog-page h1 {
  font-size: 36px;
  font-weight: 700;
  color: #1A3C6E;
  margin-bottom: 12px;
  text-align: center;
}
.changelog-page .page-subtitle {
  font-size: 16px;
  color: #6B7A90;
  text-align: center;
  margin-bottom: 48px;
  line-height: 1.7;
}
.timeline {
  position: relative;
  padding-left: 28px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, #FF6B35, #E5E9EF);
  border-radius: 1px;
}
.timeline-item {
  position: relative;
  padding-bottom: 32px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -28px;
  top: 6px;
  width: 16px;
  height: 16px;
  background: #FF6B35;
  border: 3px solid #fff;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(255,107,53,0.3);
}
.timeline-date {
  font-size: 13px;
  font-weight: 600;
  color: #FF6B35;
  margin-bottom: 4px;
}
.timeline-content {
  background: #fff;
  border-radius: 12px;
  padding: 16px 20px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
  border: 1px solid #F0F2F5;
}
.timeline-content h4 {
  font-size: 16px;
  font-weight: 700;
  color: #1A3C6E;
  margin-bottom: 4px;
}
.timeline-content p {
  font-size: 13px;
  color: #6B7A90;
  margin: 0;
  line-height: 1.6;
}

/* ===== 反馈墙 ===== */
.feedback-wall {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 24px;
}
.feedback-wall-header {
  text-align: center;
  margin-bottom: 32px;
}
.feedback-wall-header h3 {
  font-size: 24px;
  font-weight: 700;
  color: #1A3C6E;
  margin-bottom: 8px;
}
.feedback-wall-header p {
  font-size: 14px;
  color: #6B7A90;
}
.feedback-wall-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.feedback-wall-card {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  border: 1px solid #F0F2F5;
  transition: all 0.2s;
}
.feedback-wall-card:hover {
  border-color: rgba(255,107,53,0.3);
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}
.feedback-wall-status {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 600;
  margin-bottom: 10px;
}
.feedback-wall-status.dev { background: #E6F7FF; color: #1890FF; }
.feedback-wall-status.plan { background: #FFF7E6; color: #FA8C16; }
.feedback-wall-status.collect { background: #F6FFED; color: #52C41A; }
.feedback-wall-status.eval { background: #F9F0FF; color: #722ED1; }
.feedback-wall-title {
  font-size: 15px;
  font-weight: 600;
  color: #1A3C6E;
  margin-bottom: 4px;
}
.feedback-wall-desc {
  font-size: 12px;
  color: #8A95A8;
  line-height: 1.6;
}

/* ===== FAQ 页 ===== */
.faq-page {
  max-width: 820px;
  margin: 0 auto;
  padding: 120px 24px 80px;
}
.faq-page h1 {
  font-size: 36px;
  font-weight: 700;
  color: #1A3C6E;
  margin-bottom: 12px;
  text-align: center;
}
.faq-page .page-subtitle {
  font-size: 16px;
  color: #6B7A90;
  text-align: center;
  margin-bottom: 48px;
  line-height: 1.7;
}
.faq-section {
  margin-bottom: 40px;
}
.faq-section h2 {
  font-size: 22px;
  font-weight: 700;
  color: #1A3C6E;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid #F0F2F5;
  display: flex;
  align-items: center;
  gap: 10px;
}
.faq-item {
  background: #fff;
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 12px;
  border: 1px solid #F0F2F5;
  transition: all 0.2s;
}
.faq-item:hover {
  border-color: rgba(255,107,53,0.3);
  box-shadow: 0 4px 16px rgba(0,0,0,0.04);
}
.faq-question {
  font-size: 16px;
  font-weight: 600;
  color: #1A3C6E;
  margin-bottom: 8px;
  display: flex;
  gap: 10px;
}
.faq-question .q-icon {
  color: #FF6B35;
  font-weight: 700;
  flex-shrink: 0;
}
.faq-answer {
  font-size: 14px;
  color: #4A5668;
  line-height: 1.8;
  padding-left: 26px;
}
.faq-answer p { margin: 0; }

/* ===== 分享福利模块 ===== */
.share-reward-section {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 24px;
}
.share-reward-card {
  background: linear-gradient(135deg, #FFF5EE, #FFE8D6);
  border-radius: 16px;
  padding: 36px 32px;
  text-align: center;
}
.share-reward-card h3 {
  font-size: 22px;
  font-weight: 700;
  color: #1A3C6E;
  margin-bottom: 12px;
}
.share-reward-card p {
  font-size: 15px;
  color: #4A5668;
  line-height: 1.7;
  margin-bottom: 20px;
}
.share-reward-qr {
  width: 160px;
  height: 160px;
  margin: 0 auto 12px;
  background: #fff;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #999;
  font-size: 12px;
  border: 2px dashed #FFB199;
}
.share-reward-qr .qr-icon { font-size: 36px; margin-bottom: 6px; }
.share-reward-hint {
  font-size: 13px;
  color: #FF6B35;
  font-weight: 600;
}

/* ===== 移动端底部浮动按钮 ===== */
.mobile-bottom-cta { display: none; }

/* ===== 移动端响应式增强 ===== */
@media (max-width: 768px) {
  .hot-calc-tags {
    gap: 8px;
    margin-bottom: 16px;
  }
  .hot-calc-tag {
    padding: 6px 14px;
    font-size: 12px;
  }

  .modal-content {
    padding: 24px 18px 20px;
    max-width: 100%;
  }
  .modal-content.wide-modal {
    max-width: 100%;
    padding: 24px 16px 20px;
  }
  .modal-title { font-size: 16px; }
  .modal-qrcode { width: 180px; height: 180px; }
  .modal-benefits { padding: 12px 14px; }
  .modal-benefit-item { font-size: 12px; padding: 5px 0; }
  .dual-path {
    grid-template-columns: 1fr;
    gap: 12px;
    margin: 16px 0 8px;
  }
  .dual-path-item { padding: 14px 12px; }
  .dual-path-qr { width: 100px; height: 100px; }
  .modal-bottom-note { font-size: 12px; }

  .cross-sell-grid {
    grid-template-columns: 1fr;
  }
  .cross-sell-section { padding: 48px 16px; }

  .changelog-page { padding: 100px 16px 60px; }
  .changelog-page h1 { font-size: 28px; }
  .timeline-content { padding: 14px 16px; }
  .timeline-content h4 { font-size: 15px; }

  .feedback-wall { padding: 48px 16px; }
  .feedback-wall-grid { grid-template-columns: 1fr; }
  .feedback-wall-header h3 { font-size: 20px; }

  .faq-page { padding: 100px 16px 60px; }
  .faq-page h1 { font-size: 28px; }
  .faq-section h2 { font-size: 18px; }
  .faq-item { padding: 16px 18px; }
  .faq-question { font-size: 15px; }
  .faq-answer { font-size: 13px; padding-left: 22px; }

  .share-reward-section { padding: 48px 16px; }
  .share-reward-card { padding: 28px 20px; }
  .share-reward-card h3 { font-size: 18px; }
  .share-reward-qr { width: 140px; height: 140px; }

  /* 移动端汉堡菜单 */
  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 20px;
    color: #fff;
    padding: 0;
  }
  .site-nav.scrolled .nav-toggle { color: #1A3C6E; }
  
  .nav-links {
    display: none;
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    gap: 0;
    padding: 12px 16px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    z-index: 9998;
  }
  .nav-links.open { display: flex; }
  .nav-links .nav-link {
    width: 100%;
    padding: 12px 16px;
    color: #1A3C6E;
    border-radius: 8px;
    font-size: 15px;
  }
  .nav-links .nav-link:hover {
    background: #F7F9FC;
    color: #FF6B35;
  }
  .nav-links .nav-link.active { color: #FF6B35; }

  /* 移动端浮动侧边栏隐藏，改底部按钮 */
  .float-sidebar { display: none; }
  
  .mobile-bottom-cta {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #fff;
    border-top: 1px solid #F0F2F5;
    padding: 10px 16px;
    gap: 10px;
    z-index: 9990;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.06);
  }
  .mobile-bottom-cta .mb-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: 6px 0;
    background: none;
    border: none;
    cursor: pointer;
    text-decoration: none;
    color: #1A3C6E;
  }
  .mobile-bottom-cta .mb-btn.primary {
    background: linear-gradient(135deg, #FF6B35, #ff8a5c);
    color: #fff;
    border-radius: 10px;
  }
  .mobile-bottom-cta .mb-btn .mb-icon { font-size: 18px; }
  .mobile-bottom-cta .mb-btn .mb-label { font-size: 11px; font-weight: 500; }

  body.mobile-bottom-bar {
    padding-bottom: 70px;
  }
}