/* ==========================================================================
   1. 核心全局重置与设计规范 (Design System Variables & Reset)
   ========================================================================== */
:root {
  /* 品牌核心色系 (Brand Primary & Accents) */
  --primary: #1677ff;
  --primary-hover: #0958d9;
  --primary-active: #003eb3;
  --primary-light: #e6f4ff;
  --primary-light-border: rgba(22, 119, 255, 0.2);
  --primary-gradient: linear-gradient(135deg, #0ea5e9 0%, var(--primary) 55%, #0958d9 100%);
  --accent-gradient: linear-gradient(135deg, #0ea5e9 0%, #2563eb 100%);

  /* 功能色系 (Functional Status) */
  --color-success: #10b981;
  --color-success-bg: #f0fdf4;
  --color-success-border: #bbf7d0;
  --color-success-text: #166534;
  --color-warning: #f59e0b;
  --color-warning-dark: #d97706;
  --color-warning-bg: #fffbeb;
  --color-warning-border: #fde68a;
  --color-warning-text: #92400e;
  --color-danger: #ef4444;
  --color-danger-bg: #fef2f2;
  --color-danger-border: #fecaca;
  --color-danger-text: #991b1b;
  --color-info: #0ea5e9;
  --color-info-light: #eff6ff;

  /* 文字色系 (Typography Colors) */
  --text-main: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --text-white: #ffffff;

  /* 背景与卡片色系 (Surfaces & Backgrounds) */
  --bg-body: #f8fafc;
  --bg-card: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.85);
  --bg-subtle: #f1f5f9;
  --bg-dark: #0f172a;
  --bg-dark-card: rgba(30, 41, 59, 0.7);

  /* 边框体系 (Borders) */
  --border-color: #e2e8f0;
  --border-card: rgba(226, 232, 240, 0.8);
  --border-dashed: #cbd5e1;

  /* 阴影与光晕 (Shadows & Glows) */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --shadow-glow: 0 10px 30px -5px rgba(22, 119, 255, 0.28);

  /* 圆角与过渡 (Radius & Transitions) */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
  /* Header 固定后，为正文预留同等高度，避免首屏被遮挡。 */
  padding-top: 72px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

button,
input {
  font-family: inherit;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

@media (max-width: 768px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
}

/* ==========================================================================
   2. 按钮与全局徽章 (Buttons & Badges)
   ========================================================================== */
.gradient-text {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  /* display: inline-block; */
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid rgba(22, 119, 255, 0.2);
}

.badge-pill>i:first-child,
.plan-top-badge>i:first-child,
.scenario-pill>i:first-child {
  margin-right: 6px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
  text-align: center;
}

.btn-primary {
  background: var(--primary-gradient);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(22, 119, 255, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(22, 119, 255, 0.45);
  color: #ffffff;
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  background: #ffffff;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
  transform: translateY(-2px);
}

.btn-white {
  background: #ffffff;
  color: var(--primary);
  font-weight: 700;
}

.btn-white:hover {
  background: var(--bg-body);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.88rem;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.05rem;
}

/* ==========================================================================
   3. 通用工具类 (Global Utilities)
   ========================================================================== */
.section-white {
  background: var(--bg-card);
}

.section-bordered {
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.logo-fallback {
  display: none;
  align-items: center;
  gap: 8px;
}

.logo-fallback.active {
  display: flex;
}

.brand-logo-img.is-hidden {
  display: none;
}

body.modal-open {
  overflow: hidden;
}

.d-none {
  display: none !important;
}

.d-block {
  display: block !important;
}

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

.icon-info {
  color: var(--color-info);
}

.icon-primary {
  color: var(--primary);
}

.icon-success {
  color: var(--color-success);
}

.icon-warning {
  color: var(--color-warning-dark);
}

.icon-danger {
  color: var(--color-danger);
}

.mr-xs {
  margin-right: 4px;
}

.mr-sm {
  margin-right: 6px;
}

.ml-xs {
  margin-left: 4px;
}

.ml-auto {
  margin-left: auto;
}

.mt-sm {
  margin-top: 14px;
}

/* ==========================================================================
   4. 顶部导航栏 (Header / Navbar - Desktop & Responsive)
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: #ffffff;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo-img {
  height: 38px;
  width: auto;
  object-fit: contain;
}

.brand-logo-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.2;
  letter-spacing: -0.5px;
}

.brand-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* 桌面导航菜单 */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 35px;
  list-style: none;
}

.nav-link {
  font-size: 1rem;
  font-weight: bold;
  color: var(--text-main);
  position: relative;
  padding: 8px 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.25s ease;
  border-radius: 2px;
}

.nav-link:hover::after {
  width: 100%;
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown::after {
  content: "";
  position: absolute;
  top: 100%;
  left: -8px;
  width: calc(100% + 16px);
  height: 14px;
}

.nav-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.nav-dropdown-toggle .fa-chevron-down {
  font-size: 0.65rem;
  transition: transform 0.2s ease;
}

.nav-dropdown:hover .nav-dropdown-toggle .fa-chevron-down,
.nav-dropdown:focus-within .nav-dropdown-toggle .fa-chevron-down {
  transform: rotate(180deg);
}

.nav-dropdown:hover .nav-dropdown-toggle,
.nav-dropdown:focus-within .nav-dropdown-toggle {
  color: var(--primary);
}

.nav-dropdown:hover .nav-dropdown-toggle::after,
.nav-dropdown:focus-within .nav-dropdown-toggle::after {
  width: 100%;
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 196px;
  padding: 11px;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 16px 30px rgba(15, 23, 42, 0.12);
  opacity: 0;
  pointer-events: none;
  transform: translate(0, -6px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 1100;
}

.nav-dropdown-menu::before {
  content: "";
  position: absolute;
  top: -8px;
  left: 26px;
  width: 14px;
  height: 14px;
  background: #ffffff;
  border-top: 1px solid var(--border-color);
  border-left: 1px solid var(--border-color);
  transform: translateX(-50%) rotate(45deg);
  z-index: 0;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translate(0, 0);
}

.nav-dropdown-menu a {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 13px;
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 0.84rem;
  font-weight: 600;
  white-space: nowrap;
}

.nav-dropdown-menu a:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* 移动端汉堡按钮 */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px;
  position: relative;
  z-index: 1002;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.mobile-menu-btn span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-main);
  border-radius: 2px;
  transition: var(--transition);
  pointer-events: none;
}

.mobile-menu-btn.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-menu-btn.open span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* 移动端遮罩层 */
.mobile-drawer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  pointer-events: none;
}

body.drawer-open .mobile-drawer-backdrop {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

body.drawer-open {
  overflow: hidden;
}

/* 移动端抽屉菜单 */
.mobile-drawer {
  position: fixed;
  top: 73px;
  right: 0;
  width: 100%;
  height: calc(100vh - 73px);
  height: calc(100dvh - 73px);
  box-sizing: border-box;
  background: #ffffff;
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 999;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.mobile-drawer.open {
  transform: translateX(0) !important;
}

.mobile-drawer .mobile-nav-link {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-main);
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mobile-nav-group {
  border-bottom: 1px solid var(--border-color);
}

.mobile-nav-group .mobile-nav-link {
  width: 100%;
  border: 0;
  background: transparent;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
}

.mobile-nav-toggle-icon {
  font-size: 0.8rem;
  transition: transform 0.2s ease;
}

.mobile-nav-group.expanded .mobile-nav-toggle-icon {
  transform: rotate(180deg);
}

.mobile-submenu {
  display: grid;
  grid-template-rows: 0fr;
  overflow: hidden;
  transition: grid-template-rows 0.25s ease;
}

.mobile-nav-group.expanded .mobile-submenu {
  grid-template-rows: 1fr;
}

.mobile-submenu-inner {
  min-height: 0;
  padding-left: 14px;
}

.mobile-submenu a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.mobile-submenu a i {
  width: 14px;
  color: var(--primary);
  font-size: 0.75rem;
}

.mobile-drawer .mobile-actions {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-bottom: env(safe-area-inset-bottom, 20px);
}

/* Header 响应式断点 */
/* 平板与手机视口：统一启用抽屉导航 */
@media (max-width: 1080px) {
  body {
    padding-top: 64px;
    padding-bottom: 0;
  }

  .header-inner {
    height: 64px;
  }

  .brand-logo-img {
    height: 32px;
  }

  .nav-menu,
  .header-actions .btn-link-login {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
    width: 38px;
    height: 38px;
  }

  .mobile-drawer {
    top: 64px;
    height: calc(100vh - 64px);
    height: calc(100dvh - 64px);
  }
}

/* iPad / 平板端（640px ~ 1080px）：抽屉为精致侧滑面板，不霸屏，保留快速发起签署入口 */
@media (min-width: 640px) and (max-width: 1080px) {
  .container {
    padding-left: 24px;
    padding-right: 24px;
  }

  .mobile-drawer {
    width: 380px;
    max-width: 85vw;
    left: auto;
    right: 0;
    box-shadow: -8px 0 28px rgba(15, 23, 42, 0.14);
    padding: 24px;
  }
}

/* 手机小屏端（< 640px）：导航栏动作按钮收进抽屉，抽屉全宽展示 */
@media (max-width: 639px) {
  .header-actions>.btn {
    display: none;
  }

  .mobile-drawer {
    width: 100%;
    left: 0;
    right: 0;
    padding: 18px 16px;
    gap: 6px;
  }

  .mobile-drawer .mobile-nav-link {
    padding: 11px 0;
    font-size: 1rem;
  }

  .mobile-drawer .mobile-actions {
    margin-top: 14px;
  }
}

/* ==========================================================================
   5. 通用区块与头部排版 (Section & Section Header)
   ========================================================================== */
.section {
  padding: 72px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 40px;
}

.section-tag {
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-top: 14px;
  line-height: 1.6;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.section-faq {
  background: var(--bg-body);
}

@media (max-width: 768px) {
  .section {
    padding: 48px 0;
  }

  .section-header {
    margin-bottom: 26px;
  }

  .section-title {
    font-size: 1.6rem;
    line-height: 1.3;
  }

  .section-subtitle {
    font-size: 0.88rem;
    line-height: 1.65;
  }
}

/* ==========================================================================
   6. 常见问答 FAQ (Accordion)
   ========================================================================== */
.faq-container {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.faq-item:hover {
  border-color: rgba(37, 99, 235, 0.35);
}

.faq-item.active {
  border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.08);
}

.faq-question {
  padding: 18px 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text-main);
  user-select: none;
  transition: color 0.2s ease;
}

.faq-question:hover {
  color: var(--primary);
}

.faq-toggle-icon {
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  flex-shrink: 0;
  margin-left: 12px;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), color 0.25s ease;
  color: var(--text-muted);
}

.faq-item.active .faq-toggle-icon {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.active .faq-answer {
  grid-template-rows: 1fr;
}

.faq-answer-inner {
  min-height: 0;
  overflow: hidden;
}

.faq-answer-content {
  padding: 0 22px 20px;
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.75;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.22s ease, transform 0.22s ease;
}

.faq-item.active .faq-answer-content {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.04s;
}

@media (max-width: 768px) {
  .faq-question {
    padding: 16px 18px;
    font-size: 0.92rem;
    line-height: 1.45;
  }

  .faq-answer-inner {
    padding: 0 18px 16px;
  }
}

/* ==========================================================================
   5. 页脚 (Footer - Desktop & Responsive)
   ========================================================================== */
.site-footer {
  background: #0a0f1e;
  color: #97a3c0;
  padding: 64px 0 30px;
  margin-top: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.15fr;
  gap: 38px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
}

.footer-brand .brand-name {
  color: #fff;
}

.footer-brand .brand-sub {
  color: #6c7896;
}

.footer-desc {
  margin-top: 14px;
  font-size: 0.85rem;
  line-height: 1.75;
  max-width: 330px;
  color: #97a3c0;
}

.footer-col h4 {
  color: #fff;
  font-size: 0.94rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 11px;
  font-size: 0.86rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col a {
  color: #97a3c0;
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-col a:hover {
  color: #c7d2fe;
}

.footer-compliance {
  padding: 20px 0;
  font-size: 0.76rem;
  line-height: 1.8;
  color: #6c7896;
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
}

.footer-bottom {
  padding-top: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.8rem;
  color: #6c7896;
  border-top: none;
}

.footer-mobile {
  display: none;
}

.footer-brand-logo {
  margin-bottom: 4px;
}

.footer-logo-img {
  height: 30px;
  width: auto;
}

.footer-brand-name {
  font-size: 1.05rem;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 13px;
  border-radius: 9999px;
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.3);
  color: #6ee7b7;
  font-size: 0.76rem;
}

.status-chip i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #34d399;
  animation: pulseDot 2s ease-in-out infinite;
  display: inline-block;
}

@keyframes pulseDot {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.4;
    transform: scale(0.85);
  }
}

/* Footer 响应式断点 */
@media (max-width: 1080px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* iPad 适配 */
@media (min-width: 768px) and (max-width: 1080px) {
  .site-footer {
    margin-top: 0;
    padding: 52px 0 28px;
  }

  .site-footer .footer-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 30px 24px;
    padding-bottom: 32px;
  }

  .site-footer .footer-brand {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: minmax(190px, 0.7fr) minmax(0, 1.3fr);
    align-items: center;
    gap: 28px;
  }

  .site-footer .footer-desc {
    display: none;
  }

  .site-footer .footer-col h4 {
    margin-bottom: 14px;
  }

  .site-footer .footer-col ul {
    gap: 12px;
  }

  .site-footer .footer-col a {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
  }

  .site-footer .footer-compliance {
    display: block;
    padding: 18px 0;
    font-size: 0.74rem;
    line-height: 1.75;
  }

  .site-footer .footer-bottom {
    display: flex;
    padding-top: 18px;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .site-footer .footer-mobile {
    display: none;
  }
}

/* 手机移动端页脚 */
@media (max-width: 768px) {
  .site-footer {
    margin-top: 0;
    padding: 32px 0 calc(26px + env(safe-area-inset-bottom, 0px));
  }

  .site-footer .footer-grid,
  .site-footer .footer-compliance,
  .site-footer .footer-bottom {
    display: none;
  }

  .footer-mobile {
    display: flex;
    flex-direction: column;
    gap: 22px;
  }

  .footer-mobile-brand {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .footer-mobile-logo {
    width: auto;
    height: 30px;
    object-fit: contain;
    object-position: left center;
  }

  .footer-mobile-brand p {
    margin: 0;
    color: #97a3c0;
    font-size: 0.8rem;
    line-height: 1.6;
  }

  .footer-mobile-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px 18px;
    padding: 14px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.09);
    border-bottom: 1px solid rgba(255, 255, 255, 0.09);
  }

  .footer-mobile-links a {
    color: #cbd5e1;
    font-size: 0.78rem;
    font-weight: 600;
  }

  .footer-mobile-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    color: #6c7896;
    font-size: 0.68rem;
  }

  .footer-mobile-bottom span:last-child {
    color: #6ee7b7;
  }

  .footer-mobile-bottom i {
    margin-right: 4px;
  }

  .footer-compliance {
    font-size: 0.72rem;
    line-height: 1.7;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }
}

/* ==========================================================================
   6. 全局无障碍适配 (Global Reduced Motion)
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  [data-aos] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}



/*  动画*/

.bg-circle-elements {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  /* z-index: 1; */
  overflow: hidden;
}


.bg-circle {
  position: absolute;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(24, 144, 255, 0.05) 0%, rgba(24, 144, 255, 0.1) 100%);
  will-change: transform;
  /* 优化动画性能 */
  transform: translateZ(0);
  /* 启用硬件加速 */
}

.circle-1 {
  width: 350px;
  height: 350px;
  top: -230px;
  right: 10%;
  animation: floatHeader 8s ease-in-out infinite;
}

.circle-2 {
  width: 200px;
  height: 200px;
  bottom: -140px;
  right: 20%;
  animation: floatHeader 12s ease-in-out infinite reverse;
}

.circle-3 {
  width: 250px;
  height: 250px;
  top: 40%;
  left: 10%;
  animation: floatHeader 10s ease-in-out infinite 2s;
}

.bg-circle-pattern {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%231890ff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

@keyframes floatHeader {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-20px);
  }
}


/* ==========================================================================
       11. 底部唤醒 CTA (Bottom Call to Action)
       ========================================================================== */
.cta-banner {
  background: var(--primary-gradient);
  color: #ffffff;
  border-radius: var(--radius-xl);
  padding: 60px 40px;
  text-align: center;
  box-shadow: var(--shadow-glow);
  position: relative;
  overflow: hidden;
}

.cta-title {
  font-size: 2.3rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-desc {
  font-size: 1.1rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto 32px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .cta-banner {
    margin-left: 16px;
    margin-right: 16px;
    padding: 36px 20px;
    border-radius: var(--radius-lg);
  }

  .cta-title {
    font-size: 1.55rem;
    line-height: 1.35;
    margin-bottom: 12px;
  }

  .cta-desc {
    font-size: 0.92rem;
    line-height: 1.65;
    margin-bottom: 24px;
  }

  .cta-actions {
    flex-direction: column;
    gap: 12px;
    width: 100%;
  }

  .cta-actions .btn {
    width: 100%;
    justify-content: center;
    padding: 12px 16px;
  }
}

@media (min-width: 769px) and (max-width: 1080px) {
  .cta-banner {
    padding: 48px 32px;
  }

  .cta-title {
    font-size: 1.9rem;
  }
}

.btn-white {
  background: #ffffff;
  color: var(--primary);
  font-weight: 700;
}

.btn-white:hover {
  background: var(--bg-body);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.btn-cta-ghost {
  background: transparent;
  color: var(--text-white);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-cta-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--text-white);
  color: var(--text-white);
}