/* ========================================
   海关数据网 - 全局样式
   ======================================== */

/* CSS 变量 - 主题色 */
:root {
  /* 主色调 */
  --color-primary: #1E5BFF;
  --color-primary-light: #4A7FFF;
  --color-primary-dark: #0D47E0;
  --color-primary-bg: rgba(30, 91, 255, 0.06);

  /* 辅助色 */
  --color-accent: #00D4FF;
  --color-success: #00C853;
  --color-warning: #FF6D00;
  --color-error: #FF3D00;

  /* 中性色 */
  --color-text-primary: #1A1A2E;
  --color-text-secondary: #555770;
  --color-text-muted: #8E8EA0;
  --color-border: #E5E6EB;
  --color-border-light: #F2F3F5;

  /* 背景色 */
  --bg-white: #FFFFFF;
  --bg-page: #F5F7FA;
  --bg-dark: #0A1628;
  --bg-dark-secondary: #0D1B2A;

  /* 字体 */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);

  /* 过渡 */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s ease;

  /* 容器宽度 */
  --container-max: 1200px;
}

/* 全局重置 */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scrollbar-width: thin;
  scrollbar-color: rgba(30, 91, 255, 0.3) transparent;
}

body {
  font-family: var(--font-family);
  color: var(--color-text-primary);
  background-color: var(--bg-page);
  line-height: 1.6;
  overflow-x: hidden;
}

/* 全局滚动条样式 */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(30, 91, 255, 0.3);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(30, 91, 255, 0.5);
}

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
}

ul, ol {
  list-style: none;
}

/* 容器 */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.container-wide {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 通用按钮样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 14px;
  transition: all var(--transition-normal);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(30, 91, 255, 0.35);
}

.btn-outline {
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  background: transparent;
}
.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* 段落间距 */
.section {
  padding: 60px 0;
}

.section-lg {
  padding: 80px 0;
}

/* 文字截断 */
.text-ellipsis {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.text-ellipsis-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Motion */
.page-enter-active,
.page-leave-active {
  transition:
    opacity 260ms ease,
    transform 260ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.page-enter-from {
  opacity: 0;
  transform: translateY(12px);
}

.page-leave-to {
  opacity: 0;
  transform: translateY(-8px);
}

.reveal-item {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 620ms ease,
    transform 620ms cubic-bezier(0.2, 0.8, 0.2, 1),
    box-shadow var(--transition-normal),
    border-color var(--transition-normal),
    background-color var(--transition-normal),
    color var(--transition-normal);
  will-change: opacity, transform;
}

.reveal-item.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }

  .page-enter-from,
  .page-leave-to,
  .reveal-item {
    opacity: 1;
    transform: none;
  }
}