/**
 * 商品车运输物流 — 整车物流企业站
 * 深蓝 #0B1A2E + 银灰 #A0AEC0 + 白色 + 橙色点缀 #F59E0B
 * 暗色专业主题，小圆角，数据清晰
 * 纯原生 CSS，无框架依赖
 *
 * ★ 本文件符合 PBootCMS AI 开发规范 V3.6 全部约束
 */

/* Google Fonts: Inter (Latin) + Noto Sans SC (中文) — 现代专业 */


/* ============================================================
   CSS 变量体系
   ============================================================ */
:root {
  /* 基底色 — 深蓝夜空 */
  --bg-deep: #060E1A;
  --bg-primary: #0B1A2E;
  --bg-secondary: #0F2238;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --bg-input: rgba(255, 255, 255, 0.05);

  /* 点缀色 */
  --accent-orange: #F59E0B;
  --accent-orange-dim: rgba(245, 158, 11, 0.12);
  --accent-orange-hover: #FBBF24;
  --accent-blue: #3B82F6;
  --accent-blue-dim: rgba(59, 130, 246, 0.1);
  --accent-gradient: linear-gradient(135deg, #F59E0B, #F97316);

  /* 文字色阶 */
  --text-primary: #E2E8F0;
  --text-secondary: #A0AEC0;
  --text-muted: #64748B;
  --text-white: #FFFFFF;

  /* 边框 */
  --border-subtle: rgba(160, 174, 192, 0.08);
  --border-card: rgba(160, 174, 192, 0.12);
  --border-focus: rgba(245, 158, 11, 0.3);

  /* 阴影 */
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 4px 24px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(245, 158, 11, 0.15);
  --shadow-orange: 0 0 20px rgba(245, 158, 11, 0.15);

  /* 圆角 — 小圆角专业感 */
  --radius-xs: 3px;
  --radius-sm: 5px;
  --radius-md: 8px;
  --radius-lg: 10px;

  /* 间距 */
  --section-py: 80px;
  --container-max: 1200px;
  --header-h: 68px;

  /* 过渡 */
  --ease: cubic-bezier(0.2, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;

  /* 字体 — Inter + Noto Sans SC 现代专业组合 */
  --font-heading: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg-deep);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* 深蓝背景纹理 */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 60% 40% at 30% 10%, rgba(59, 130, 246, 0.04) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 70% 80%, rgba(245, 158, 11, 0.03) 0%, transparent 60%),
    linear-gradient(180deg, #060E1A 0%, #0B1A2E 40%, #0F2238 100%);
  pointer-events: none;
}

::selection { background: rgba(245, 158, 11, 0.25); color: #fff; }

/* 滚动条 */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.15); }

a { color: inherit; text-decoration: none; transition: color var(--duration-fast) var(--ease); }
a:hover { color: var(--accent-orange); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

input, textarea, select, button {
  font-family: inherit;
  font-size: inherit;
  color: var(--text-primary);
}
input::placeholder, textarea::placeholder { color: var(--text-muted); opacity: 1; }

/* ============================================================
   排版
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-white);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.01em;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-orange);
  margin-bottom: 0.5rem;
  position: relative;
  padding-left: 28px;
}
.section-tag::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 20px;
  height: 2px;
  background: var(--accent-orange);
  transform: translateY(-50%);
}

.section-title {
  font-size: clamp(1.5rem, 3.2vw, 2.25rem);
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 0.4rem;
  letter-spacing: 0.02em;
}

.section-subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.65;
}

/* ============================================================
   布局容器
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: var(--section-py) 0; }

/* ============================================================
   Header 头部 — 深蓝半透明固定顶栏
   ============================================================ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(11, 26, 46, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--duration-normal) var(--ease),
              box-shadow var(--duration-normal) var(--ease);
}
.header.scrolled {
  background: rgba(11, 26, 46, 0.97);
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.5);
}

.header__inner {
  display: flex;
  align-items: center;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Logo */
.header__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  margin-right: auto;
}
.header__logo-icon {
  width: 40px; height: 40px;
  background: var(--accent-gradient);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: #fff;
}
.header__logo-text {
  display: flex; flex-direction: column; line-height: 1.2;
}
.header__logo-name {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-white);
  letter-spacing: -0.01em;
}
.header__logo-sub {
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-orange);
}

/* 主导航 */
.header__nav {
  display: flex;
  align-items: center;
  gap: 2px;
}
.header__nav-link {
  padding: 8px 14px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease);
  white-space: nowrap;
  position: relative;
}
.header__nav-link:hover,
.header__nav-link.active {
  color: var(--text-white);
  background: rgba(255, 255, 255, 0.05);
}

/* 导航下拉 — z-[60] */
.header__nav-item { position: relative; }
.header__nav-item:hover .header__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.header__dropdown {
  position: absolute;
  top: 100%; left: 0;
  min-width: 170px;
  padding: 8px 0;
  background: rgba(15, 34, 56, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--duration-normal) var(--ease);
  z-index: 60;
}
.header__dropdown a {
  display: block;
  padding: 10px 20px;
  font-size: 0.86rem;
  color: var(--text-secondary);
  transition: all var(--duration-fast) var(--ease);
}
.header__dropdown a:hover {
  color: var(--text-white);
  background: rgba(255, 255, 255, 0.04);
}

/* 头部右侧操作区 */
.header__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: 18px;
}
.header__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  background: var(--accent-gradient);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease);
  white-space: nowrap;
}
.header__cta:hover {
  color: #fff;
  box-shadow: var(--shadow-orange);
  transform: translateY(-1px);
}

/* 客户/客服浮动按钮 */
.header__kefu {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border-card);
  background: rgba(255,255,255,0.03);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  transition: all var(--duration-fast) var(--ease);
}
.header__kefu:hover {
  border-color: var(--accent-orange);
  color: var(--accent-orange);
  box-shadow: var(--shadow-orange);
}

/* ============================================================
   汉堡菜单（移动端）— 独立于 header__actions
   ============================================================ */
.hamburger {
  display: none;
  width: 40px; height: 40px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 110;
  margin-left: 8px;
}
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: all var(--duration-normal) var(--ease);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* 移动端侧滑菜单 */
.mobile-nav {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: 80%; max-width: 340px;
  background: rgba(11, 26, 46, 0.99);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  z-index: 120;
  transform: translateX(-100%);
  transition: transform var(--duration-normal) var(--ease);
  overflow-y: auto;
}
.mobile-nav.open { transform: translateX(0); }
.mobile-nav__inner { padding: 24px; padding-top: 80px; }
.mobile-nav__link {
  display: block;
  padding: 14px 16px;
  font-size: 0.98rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease);
}
.mobile-nav__link:hover { color: var(--text-white); background: rgba(255,255,255,0.03); }
.mobile-nav__sub { padding-left: 16px; display: none; }
.mobile-nav__sub.open { display: block; }
.mobile-nav__sub a {
  display: block;
  padding: 10px 16px;
  font-size: 0.88rem;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
}
.mobile-nav__overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 115;
  opacity: 0; pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease);
}
.mobile-nav__overlay.show { opacity: 1; pointer-events: auto; }

/* ============================================================
   内页 Banner
   ============================================================ */
.inner-banner {
  position: relative;
  height: 300px;
  overflow: hidden;
  background: var(--bg-primary);
}
.inner-banner__bg {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
}
.inner-banner__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(6,14,26,0.6) 0%, rgba(6,14,26,0.3) 60%, var(--bg-deep) 100%);
}
.inner-banner__content {
  position: relative; height: 100%;
  display: flex; flex-direction: column;
  justify-content: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  padding-top: var(--header-h);
}
.inner-banner__title {
  font-size: clamp(1.6rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.4rem;
}
.inner-banner__subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
}

/* 面包屑 */
.breadcrumb-bar {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
}
.breadcrumb {
  display: flex; align-items: center; gap: 8px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 12px 24px;
  font-size: 0.84rem;
  color: var(--text-muted);
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--accent-orange); }
.breadcrumb i { font-size: 0.6rem; color: var(--text-muted); }

/* ============================================================
   按钮系统
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 24px;
  font-size: 0.9rem; font-weight: 600;
  border-radius: var(--radius-sm);
  border: none; cursor: pointer;
  transition: all var(--duration-normal) var(--ease);
  white-space: nowrap;
}
.btn--primary {
  background: var(--accent-gradient);
  color: #fff;
}
.btn--primary:hover {
  color: #fff;
  box-shadow: var(--shadow-orange);
  transform: translateY(-2px);
}
.btn--outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid rgba(245, 158, 11, 0.3);
}
.btn--outline:hover {
  border-color: var(--accent-orange);
  background: var(--accent-orange-dim);
  color: var(--accent-orange);
  transform: translateY(-2px);
}
.btn--ghost {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  border: 1px solid var(--border-card);
}
.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-white);
}
.btn--white {
  background: #fff;
  color: var(--bg-primary);
}
.btn--white:hover {
  background: var(--accent-orange);
  color: #fff;
}

/* ============================================================
   卡片系统 — 深色底 + 银灰边框
   ============================================================ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease);
}
.card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(245, 158, 11, 0.2);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.card__image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--bg-primary);
}
.card__image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease);
}
.card:hover .card__image img { transform: scale(1.05); }
.card__body { padding: 18px 20px 20px; }
.card__tag {
  display: inline-block;
  padding: 2px 10px;
  font-size: 0.7rem; font-weight: 700;
  color: var(--accent-orange);
  background: var(--accent-orange-dim);
  border-radius: 3px;
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}
.card__title {
  font-family: var(--font-heading);
  font-size: 1.02rem; font-weight: 600;
  color: var(--text-white);
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card__desc {
  font-size: 0.86rem; color: var(--text-secondary);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card__meta {
  display: flex; align-items: center; gap: 14px;
  margin-top: 10px; padding-top: 10px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8rem; color: var(--text-muted);
}
.card__meta i { color: var(--accent-orange); font-size: 0.75rem; }

/* ============================================================
   首页 — Hero Banner (商品车运输实景)
   ============================================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
  background: var(--bg-deep);
}
.hero .swiper {
  position: absolute; inset: 0; z-index: 0;
}
.hero__slide {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  transition: transform 8s ease;
}
.hero .swiper-slide-active .hero__slide { transform: scale(1); }
.hero__overlay {
  position: absolute; inset: 0; z-index: 2;
  background: linear-gradient(180deg,
    rgba(6,14,26,0.3) 0%,
    rgba(6,14,26,0.15) 30%,
    rgba(6,14,26,0.7) 80%,
    rgba(6,14,26,0.95) 100%
  );
}
/* 网格线装饰 */
.hero__grid-overlay {
  position: absolute; inset: 0; z-index: 1;
  background-image:
    linear-gradient(rgba(160,174,192,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(160,174,192,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero__content {
  position: relative; z-index: 3;
  height: 100%;
  display: flex; flex-direction: column;
  justify-content: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}
.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5.5vw, 3.5rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 1rem;
  max-width: 700px;
  text-shadow: 0 2px 30px rgba(0,0,0,0.5);
}
.hero__title span { color: var(--accent-orange); }
.hero__subtitle {
  font-size: clamp(0.95rem, 1.8vw, 1.15rem);
  color: rgba(255,255,255,0.7);
  margin-bottom: 2rem;
  max-width: 560px;
  font-weight: 300;
}
.hero__actions {
  display: flex; gap: 12px; flex-wrap: wrap;
}

/* Hero 分页器 */
.hero-pagination {
  display: flex; justify-content: center; gap: 6px;
  margin-top: 20px;
}
.hero-pagination .swiper-pagination-bullet {
  width: 36px; height: 2px;
  border-radius: 1px;
  background: rgba(255,255,255,0.25);
  opacity: 1;
  transition: all var(--duration-normal);
}
.hero-pagination .swiper-pagination-bullet-active {
  width: 56px;
  background: var(--accent-orange);
  box-shadow: 0 0 10px var(--accent-orange);
}

/* 滚动指示器 */
.hero__scroll {
  position: absolute; bottom: 28px; left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  color: rgba(255,255,255,0.35);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  animation: scrollBounce 2s ease-in-out infinite;
}
.hero__scroll-line {
  width: 1px; height: 28px;
  background: linear-gradient(180deg, var(--accent-orange), transparent);
}
@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ============================================================
   首页 — 统计数据（橙色数字 + 深色背景）
   ============================================================ */
.stats-section {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
  overflow: hidden;
}
.stats-section::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 50% 80% at 50% 0%, rgba(245,158,11,0.04) 0%, transparent 70%);
  pointer-events: none;
}
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stat-item {
  text-align: center;
  padding: 32px 16px;
  position: relative;
}
.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -10px; top: 20%; bottom: 20%;
  width: 1px;
  background: var(--border-subtle);
}
.stat-item__number {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 800;
  color: var(--accent-orange);
  line-height: 1;
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}
.stat-item__number .unit {
  font-size: 1.2rem;
  color: var(--text-secondary);
  font-weight: 400;
}
.stat-item__label {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

/* ============================================================
   首页 — 核心服务（4列卡片）
   ============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.service-card {
  text-align: center;
  padding: 36px 22px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease);
}
.service-card:hover {
  border-color: rgba(245, 158, 11, 0.25);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.service-card__icon {
  width: 56px; height: 56px;
  margin: 0 auto 16px;
  border-radius: var(--radius-sm);
  background: var(--accent-orange-dim);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  color: var(--accent-orange);
  transition: all var(--duration-normal) var(--ease);
}
.service-card:nth-child(2) .service-card__icon {
  background: var(--accent-blue-dim); color: var(--accent-blue);
}
.service-card:nth-child(3) .service-card__icon {
  background: rgba(16, 185, 129, 0.1); color: #10B981;
}
.service-card:nth-child(4) .service-card__icon {
  background: rgba(139, 92, 246, 0.1); color: #8B5CF6;
}
.service-card:hover .service-card__icon { transform: scale(1.1); }
.service-card__title {
  font-size: 1.05rem; font-weight: 600;
  color: var(--text-white);
  margin-bottom: 6px;
}
.service-card__desc {
  font-size: 0.84rem; color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================================
   首页 — 运输线路（节点展示）
   ============================================================ */
.route-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.route-item {
  display: flex; align-items: center; gap: 14px;
  padding: 20px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease);
}
.route-item:hover {
  border-color: rgba(245, 158, 11, 0.2);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}
.route-item__line {
  font-family: var(--font-heading);
  font-size: 1.02rem; font-weight: 600;
  color: var(--text-white);
  white-space: nowrap;
}
.route-item__line i {
  color: var(--accent-orange); margin: 0 8px;
  font-size: 0.7rem;
}
.route-item__info {
  font-size: 0.78rem; color: var(--text-muted);
}

/* ============================================================
   首页 — 客户案例（4列 Logo + 简述）
   ============================================================ */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.case-card {
  padding: 28px 20px;
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease);
}
.case-card:hover {
  border-color: rgba(245, 158, 11, 0.2);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-card);
}
.case-card__logo {
  width: 80px; height: 80px;
  margin: 0 auto 14px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.04);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.case-card__logo img {
  width: 100%; height: 100%;
  object-fit: contain;
  padding: 8px;
}
.case-card__title {
  font-size: 0.95rem; font-weight: 600;
  color: var(--text-white);
  margin-bottom: 4px;
}
.case-card__desc {
  font-size: 0.8rem; color: var(--text-muted);
}

/* ============================================================
   首页 — 优势保障（4项）
   ============================================================ */
.advantages {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.adv-item {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease);
}
.adv-item:hover {
  border-color: var(--border-focus);
  background: var(--bg-card-hover);
}
.adv-item__icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: var(--accent-orange-dim);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent-orange);
  font-size: 1.1rem;
  flex-shrink: 0;
}
.adv-item__title {
  font-size: 0.95rem; font-weight: 600;
  color: var(--text-white);
  margin-bottom: 4px;
}
.adv-item__desc {
  font-size: 0.8rem; color: var(--text-muted);
  line-height: 1.5;
}

/* ============================================================
   首页 — 新闻（左图右文）
   ============================================================ */
.news-list-home {
  display: flex; flex-direction: column; gap: 14px;
}
.news-item-home {
  display: flex; gap: 20px;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease);
}
.news-item-home:hover {
  border-color: rgba(245, 158, 11, 0.15);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}
.news-item-home__thumb {
  width: 200px; flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 16/10;
  background: var(--bg-primary);
}
.news-item-home__thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.news-item-home__info { flex: 1; min-width: 0; }
.news-item-home__title {
  font-size: 1.02rem; font-weight: 600;
  color: var(--text-white);
  margin-bottom: 6px;
}
.news-item-home__desc {
  font-size: 0.86rem; color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
}
.news-item-home__date {
  font-size: 0.78rem; color: var(--text-muted);
}
.news-item-home__date i { color: var(--accent-orange); margin-right: 4px; }

/* ============================================================
   CTA 区块 — 深色底+橙色边框
   ============================================================ */
.cta-section {
  text-align: center;
  padding: 80px 0 90px;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(245,158,11,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.cta-card {
  max-width: 600px; margin: 0 auto;
  padding: 44px;
  background: var(--bg-card);
  border: 1px solid rgba(245, 158, 11, 0.15);
  border-radius: var(--radius-lg);
  position: relative;
}
.cta-card::before {
  content: '';
  position: absolute; inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, transparent 30%, rgba(245,158,11,0.2) 50%, transparent 70%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.cta-card__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--text-white);
  margin-bottom: 0.6rem;
}
.cta-card__subtitle {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 0.95rem;
}

/* ============================================================
   列表页 — 网格
   ============================================================ */
.list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.list-grid--4col {
  grid-template-columns: repeat(4, 1fr);
}
.list-header {
  text-align: center;
  margin-bottom: 44px;
}
.list-header h1 {
  font-size: clamp(1.6rem, 3.5vw, 2.25rem);
  margin-bottom: 0.4rem;
}

/* 子栏目过滤栏 */
.filter-bar {
  display: flex; align-items: center; gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  margin-bottom: 32px;
  -ms-overflow-style: none;
  scrollbar-width: none;
}
.filter-bar::-webkit-scrollbar { display: none; }
.filter-bar a {
  display: inline-flex;
  padding: 7px 18px;
  font-size: 0.84rem; font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid var(--border-card);
  border-radius: 100px;
  white-space: nowrap;
  transition: all var(--duration-fast) var(--ease);
  flex-shrink: 0;
}
.filter-bar a:hover,
.filter-bar a.active {
  color: var(--accent-orange);
  border-color: var(--accent-orange);
  background: var(--accent-orange-dim);
}

/* ============================================================
   详情页
   ============================================================ */
.detail {
  max-width: 860px; margin: 0 auto;
}
.detail__header {
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
}
.detail__title {
  font-size: clamp(1.4rem, 2.8vw, 2rem);
  margin-bottom: 10px;
}
.detail__meta-row {
  display: flex; flex-wrap: wrap; gap: 18px;
  font-size: 0.84rem; color: var(--text-muted);
}
.detail__meta-row i { color: var(--accent-orange); margin-right: 3px; }

/* 服务详情参数卡片 */
.detail__params {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  margin-bottom: 32px;
}
.detail__param {
  padding: 16px; text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
}
.detail__param-label {
  font-size: 0.72rem; color: var(--text-muted); margin-bottom: 2px;
  letter-spacing: 0.04em;
}
.detail__param-value {
  font-size: 1rem; font-weight: 700; color: var(--text-white);
}
.detail__param-value.accent { color: var(--accent-orange); }

/* 正文 */
.detail__body {
  color: var(--text-secondary);
  line-height: 1.9;
  font-size: 0.93rem;
  letter-spacing: 0.01em;
}
.detail__body img { border-radius: var(--radius-sm); margin: 20px 0; max-width: 100%; }
.detail__body p { margin-bottom: 14px; }
.detail__body h2, .detail__body h3 {
  font-family: var(--font-heading);
  color: var(--text-white);
  margin-top: 28px; margin-bottom: 14px;
}

/* Tab 切换 */
.detail-tabs {
  display: flex; gap: 0;
  border-bottom: 1px solid var(--border-card);
  margin-bottom: 28px;
}
.detail-tab {
  padding: 12px 24px;
  font-size: 0.9rem; font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--duration-fast) var(--ease);
  background: none; border-top: none; border-left: none; border-right: none;
}
.detail-tab:hover { color: var(--text-white); }
.detail-tab.active {
  color: var(--accent-orange);
  border-bottom-color: var(--accent-orange);
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }
.tab-panel.hidden { display: none; }

/* 上下篇导航 */
.detail__pager {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 44px; padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.86rem; color: var(--text-muted);
}
.detail__pager a {
  color: var(--text-secondary);
  flex: 1;
}
.detail__pager a:hover { color: var(--accent-orange); }
.detail__pager a:nth-child(2) { text-align: center; }

/* 相关推荐 */
.related-title {
  font-size: 1.25rem; font-weight: 700;
  margin: 50px 0 20px;
  color: var(--text-white);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

/* ============================================================
   运输网络页
   ============================================================ */
.network-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.network-city {
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--text-secondary);
  text-align: center;
  transition: all var(--duration-fast) var(--ease);
}
.network-city:hover {
  color: var(--accent-orange);
  border-color: var(--accent-orange);
  background: var(--accent-orange-dim);
}
.network-city i {
  color: var(--accent-orange);
  margin-left: 4px;
  font-size: 0.65rem;
}

/* ============================================================
   在线报价/追踪页 — 表单
   ============================================================ */
.quote-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 44px;
  align-items: start;
}
.form-card {
  padding: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
}
.form-card h3 {
  font-size: 1.2rem; margin-bottom: 4px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 0.84rem; color: var(--text-secondary);
  margin-bottom: 5px;
}
.form-group label .required { color: var(--accent-orange); }
.form-control {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  color: var(--text-white);
  font-size: 0.9rem;
  transition: all var(--duration-fast) var(--ease);
}
.form-control:focus {
  outline: none;
  border-color: var(--accent-orange);
  box-shadow: 0 0 0 3px var(--accent-orange-dim);
}
select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' fill='%2364748B' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 34px;
}
textarea.form-control { resize: vertical; min-height: 90px; }

/* 追踪结果模拟 */
.tracking-result {
  margin-top: 24px; padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
}
.tracking-step {
  display: flex; gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
}
.tracking-step:last-child { border-bottom: none; }
.tracking-step__dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent-orange);
  flex-shrink: 0;
  margin-top: 4px;
}
.tracking-step__dot.pending { background: var(--text-muted); }
.tracking-step__info { flex: 1; }
.tracking-step__status {
  font-size: 0.9rem; color: var(--text-white); font-weight: 600;
}
.tracking-step__time {
  font-size: 0.76rem; color: var(--text-muted);
}

/* ============================================================
   联系我们页
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
}
.contact-info__item {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  transition: all var(--duration-fast) var(--ease);
}
.contact-info__item:hover {
  border-color: rgba(245, 158, 11, 0.2);
}
.contact-info__icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  background: var(--accent-orange-dim);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent-orange);
  flex-shrink: 0;
}
.contact-info__label {
  font-size: 0.78rem; font-weight: 600;
  color: var(--text-white);
  margin-bottom: 1px;
}
.contact-info__value {
  font-size: 0.86rem; color: var(--text-secondary);
}

/* ============================================================
   图片画廊/装载实景（Swiper 轮播）
   ============================================================ */
.loading-swiper {
  overflow: hidden;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}
.loading-slide {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16/9;
}
.loading-slide img {
  width: 100%; height: 100%; object-fit: cover;
}
.loading-slide__caption {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 14px 20px;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  color: #fff;
  font-size: 0.88rem;
}

/* ============================================================
   新闻列表页
   ============================================================ */
.news-list--page {
  display: flex; flex-direction: column; gap: 14px;
}
.news-item--page {
  display: flex; gap: 20px;
  padding: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease);
}
.news-item--page:hover {
  border-color: rgba(245, 158, 11, 0.15);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}
.news-item--page__thumb {
  width: 220px; flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--bg-primary);
}
.news-item--page__thumb img {
  width: 100%; height: 100%; object-fit: cover;
}
.news-item--page__info { flex: 1; min-width: 0; }
.news-item--page__title {
  font-size: 1.05rem; font-weight: 600;
  color: var(--text-white); margin-bottom: 8px;
}
.news-item--page__desc {
  font-size: 0.88rem; color: var(--text-secondary);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
}
.news-item--page__date {
  font-size: 0.78rem; color: var(--text-muted);
}

/* ============================================================
   搜索页
   ============================================================ */
.search-box {
  max-width: 680px; margin: 0 auto;
}
.search-form-row {
  display: flex; gap: 10px;
}
.search-input-wrap { position: relative; flex: 1; }
.search-input-wrap i {
  position: absolute; left: 16px; top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.95rem;
}
.search-input-wrap input {
  width: 100%;
  padding: 14px 20px 14px 44px;
  background: var(--bg-input);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  color: var(--text-white);
  font-size: 0.93rem;
}
.search-input-wrap input:focus {
  outline: none;
  border-color: var(--accent-orange);
  box-shadow: 0 0 0 3px var(--accent-orange-dim);
}
.search-result-item {
  display: flex; gap: 14px;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease);
  margin-bottom: 8px;
}
.search-result-item:hover {
  border-color: rgba(245, 158, 11, 0.15);
  background: var(--bg-card-hover);
}
.search-result-item__thumb {
  width: 100px; height: 72px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-input);
}
.search-result-item__thumb img {
  width: 100%; height: 100%; object-fit: cover;
}
.search-result-item__info { flex: 1; min-width: 0; }
.search-result-item__title {
  font-size: 0.95rem; font-weight: 600;
  color: var(--text-white);
  margin-bottom: 4px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.search-result-item__desc {
  font-size: 0.82rem; color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============================================================
   分页
   ============================================================ */
.pagination {
  display: flex; justify-content: center; align-items: center;
  gap: 4px;
  margin-top: 48px;
}
.pagination a, .pagination span {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 38px; height: 38px;
  padding: 0 6px;
  font-size: 0.86rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease);
  border: 1px solid transparent;
}
.pagination a:hover {
  background: rgba(255,255,255,0.04);
  color: var(--text-white);
  border-color: var(--border-card);
}
.pagination .active {
  background: var(--accent-gradient);
  color: #fff;
  font-weight: 600;
  border-color: transparent;
}
.pagination .disabled {
  color: var(--text-muted);
  pointer-events: none;
}

/* ============================================================
   空状态
   ============================================================ */
.empty-state {
  text-align: center;
  padding: 56px 20px;
}
.empty-state i {
  font-size: 2.5rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  display: block;
  opacity: 0.4;
}
.empty-state p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ============================================================
   关于我们页
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.about-image {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
}
.about-image img {
  width: 100%; height: 100%; object-fit: cover;
}
.about-text p {
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 14px;
}
.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 20px;
}
.cert-item {
  padding: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  text-align: center;
  font-size: 0.84rem;
  color: var(--text-secondary);
}
.cert-item i { color: var(--accent-orange); font-size: 1.2rem; display: block; margin-bottom: 6px; }

/* ============================================================
   Footer 底部 — 四列深色布局
   ============================================================ */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
}
.footer__top-line {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-orange), transparent);
  opacity: 0.4;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 36px;
  padding: 52px 0 36px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 24px; padding-right: 24px;
}
.footer__brand-desc {
  font-size: 0.86rem; color: var(--text-secondary);
  line-height: 1.65;
  margin: 14px 0;
}
.footer__social {
  display: flex; gap: 8px;
}
.footer__social a {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: rgba(255,255,255,0.03);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: all var(--duration-fast) var(--ease);
}
.footer__social a:hover {
  background: var(--accent-orange);
  color: #fff;
}
.footer__col-title {
  font-size: 0.95rem; font-weight: 600;
  color: var(--text-white);
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}
.footer__col-title::after {
  content: '';
  position: absolute; bottom: 0; left: 0;
  width: 24px; height: 2px;
  background: var(--accent-orange);
}
.footer__links {
  display: flex; flex-direction: column; gap: 8px;
}
.footer__links a {
  font-size: 0.85rem; color: var(--text-secondary);
}
.footer__links a:hover { color: var(--accent-orange); }
.footer__contact-item {
  display: flex; align-items: flex-start; gap: 8px;
  font-size: 0.83rem; color: var(--text-secondary);
  margin-bottom: 8px;
}
.footer__contact-item i {
  color: var(--accent-orange); margin-top: 2px;
  flex-shrink: 0; font-size: 0.75rem;
}
.footer__qrcode {
  width: 100px; height: 100px;
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.65rem; color: #999;
}
.footer__qrcode img { width: 100%; height: 100%; object-fit: contain; }
.footer__bottom {
  border-top: 1px solid var(--border-subtle);
  padding: 18px 0;
}
.footer__bottom-inner {
  display: flex; justify-content: space-between; align-items: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  font-size: 0.78rem;
  color: var(--text-muted);
  flex-wrap: wrap; gap: 8px;
}
.footer__bottom a { color: var(--text-muted); }
.footer__bottom a:hover { color: var(--accent-orange); }

/* ============================================================
   友情链接
   ============================================================ */
.friend-links {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
  padding: 14px 0;
}
.friend-links__label {
  font-size: 0.8rem; color: var(--text-muted); flex-shrink: 0;
}
.friend-links a {
  font-size: 0.8rem; color: var(--text-muted);
}
.friend-links a:hover { color: var(--accent-orange); }

/* ============================================================
   返回顶部
   ============================================================ */
.back-top {
  position: fixed;
  right: 20px; bottom: 80px;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-card);
  color: var(--text-muted);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  cursor: pointer;
  z-index: 80;
  opacity: 0; pointer-events: none;
  transition: all var(--duration-normal) var(--ease);
}
.back-top.show { opacity: 1; pointer-events: auto; }
.back-top:hover {
  background: var(--accent-orange);
  color: #fff;
  border-color: var(--accent-orange);
}

/* 在线客服浮动按钮 */
.kefu-float {
  position: fixed;
  right: 20px; bottom: 132px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  z-index: 80;
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
  transition: all var(--duration-normal) var(--ease);
  animation: kefuPulse 2s ease-in-out infinite;
}
.kefu-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(245, 158, 11, 0.5);
}
@keyframes kefuPulse {
  0%, 100% { box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3); }
  50% { box-shadow: 0 4px 28px rgba(245, 158, 11, 0.6); }
}

/* 手机端底部导航 */
.mobile-footer {
  display: none;
  position: fixed; bottom: 0; left: 0; right: 0;
  background: rgba(11, 26, 46, 0.97);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-card);
  z-index: 90;
  padding: 6px 0;
  padding-bottom: env(safe-area-inset-bottom);
}
.mobile-footer__grid {
  display: flex;
  justify-content: space-around;
}
.mobile-footer a {
  display: flex; flex-direction: column; align-items: center;
  gap: 2px;
  color: var(--text-muted);
  font-size: 0.65rem;
  padding: 6px 10px;
}
.mobile-footer a i { font-size: 1.1rem; }
.mobile-footer a.active { color: var(--accent-orange); }

/* ============================================================
   动画系统 — 专业微交互
   ============================================================ */

/* AOS 覆盖 */
[data-aos] { transition-timing-function: var(--ease); }

/* 按钮脉冲（CTA） */
@keyframes btnPulse {
  0% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(245, 158, 11, 0); }
  100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
}
.btn--primary.pulse { animation: btnPulse 2s infinite; }

/* 数字滚动 */
.countup {
  font-variant-numeric: tabular-nums;
}

/* 卡片悬浮微光 */
@keyframes shimmerSweep {
  0% { transform: translateX(-100%) skewX(-15deg); }
  100% { transform: translateX(200%) skewX(-15deg); }
}
.shimmer-overlay {
  position: relative; overflow: hidden;
}
.shimmer-overlay::after {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 60%; height: 100%;
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.02) 40%,
    rgba(255, 255, 255, 0.04) 50%,
    rgba(255, 255, 255, 0.02) 60%,
    transparent 100%
  );
  transform: translateX(-100%) skewX(-15deg);
  pointer-events: none;
}
.shimmer-overlay:hover::after { animation: shimmerSweep 0.7s ease-in-out; }

/* section 分隔线 */
.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-card), transparent);
  max-width: var(--container-max);
  margin: 0 auto;
}

/* 数据区块左下角三角装饰 */
.data-accent {
  position: relative;
}
.data-accent::before {
  content: '';
  position: absolute; top: -1px; left: 0;
  width: 40px; height: 3px;
  background: var(--accent-orange);
}

/* 图片hover放大 */
.img-zoom {
  overflow: hidden;
}
.img-zoom img {
  transition: transform var(--duration-slow) var(--ease);
}
.img-zoom:hover img { transform: scale(1.06); }

/* ============================================================
   响应式 — 平板 (768px - 1023px)
   ============================================================ */
@media (max-width: 1023px) {
  :root { --section-py: 60px; }

  .header__nav,
  .header__actions { display: none; }
  .hamburger { display: flex; }

  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .stat-item:not(:last-child)::after { display: none; }
  .stat-item:nth-child(odd)::after {
    content: ''; position: absolute;
    right: -8px; top: 20%; bottom: 20%;
    width: 1px; background: var(--border-subtle);
  }

  .route-grid { grid-template-columns: repeat(2, 1fr); }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .advantages { grid-template-columns: repeat(2, 1fr); }
  .list-grid { grid-template-columns: repeat(2, 1fr); }
  .list-grid--4col { grid-template-columns: repeat(2, 1fr); }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .network-grid { grid-template-columns: repeat(3, 1fr); }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }

  .contact-grid { grid-template-columns: 1fr; }
  .quote-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }

  .footer__grid { grid-template-columns: 1fr 1fr; gap: 28px; }

  .news-item-home { flex-direction: column; }
  .news-item-home__thumb { width: 100%; aspect-ratio: 16/9; }
  .news-item--page { flex-direction: column; }
  .news-item--page__thumb { width: 100%; aspect-ratio: 16/9; }

  .detail__pager { flex-direction: column; gap: 6px; text-align: center; }
  .form-row { grid-template-columns: 1fr; }
}

/* ============================================================
   响应式 — 移动端 (< 768px)
   ============================================================ */
@media (max-width: 767px) {
  :root { --section-py: 48px; }

  .hero { height: 85vh; min-height: 480px; }
  .hero__content { padding-bottom: 60px; }

  .inner-banner { height: 200px; }

  .services-grid { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .route-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr 1fr; }
  .advantages { grid-template-columns: 1fr; }
  .list-grid { grid-template-columns: 1fr; }
  .list-grid--4col { grid-template-columns: 1fr 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .network-grid { grid-template-columns: repeat(2, 1fr); }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }

  .footer__grid { grid-template-columns: 1fr; gap: 24px; }
  .footer__bottom-inner { flex-direction: column; text-align: center; }

  .cta-card { padding: 28px 20px; }
  .search-result-item { flex-direction: column; }
  .search-result-item__thumb { width: 100%; height: 140px; }

  .detail__params { grid-template-columns: repeat(2, 1fr); }
  .detail-tabs { overflow-x: auto; }
  .detail-tab { padding: 10px 16px; font-size: 0.82rem; white-space: nowrap; }

  .form-card { padding: 24px; }
  .back-top { right: 10px; bottom: 70px; }
  .kefu-float { right: 10px; bottom: 120px; }
  .mobile-footer { display: block; }
  body { padding-bottom: 60px; }
}

/* ============================================================
   响应式 — 小屏 (< 375px)
   ============================================================ */
@media (max-width: 374px) {
  body { font-size: 14px; }
  .services-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
}

/* ============================================================
   减少动画偏好
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Mobile spacing and readable cards; desktop rules remain unchanged. */
@media (max-width:1023px) {
  body { overflow-x:visible; }
  .container > *, .footer__grid > *, .quote-grid > *, .contact-grid > *, .about-grid > * { min-width:0; }
  .breadcrumb { flex-wrap:wrap; overflow-wrap:anywhere; }
  .detail__body, .contact-info__value, .footer__contact-item { overflow-wrap:anywhere; }
  .detail__body table { display:block; max-width:100%; overflow-x:auto; }
  .detail__body iframe, .detail__body video { max-width:100%; }
  .header__logo { min-width:0; flex-shrink:1; }
  .header__logo-text { min-width:0; }
  .header__logo-name { overflow-wrap:anywhere; }
  .header__logo-icon, .hamburger { flex-shrink:0; }
  .mobile-nav { visibility:hidden; }
  .mobile-nav.open { visibility:visible; }
  .mobile-nav__inner { padding:24px 16px; }
  .mobile-nav__link { padding:11px 14px; }
  .mobile-nav__close { display:block; margin:0 0 12px auto; width:44px; height:44px; background:transparent; border:1px solid var(--border-card); border-radius:5px; cursor:pointer; }
  [data-aos="fade-left"], [data-aos="fade-right"] { transform:translateY(24px); }
  [data-aos="fade-left"].aos-animate, [data-aos="fade-right"].aos-animate { transform:translateY(0); }
}
@media (min-width:1024px) { .mobile-nav__close { display:none; } }
@media (max-width:767px) {
  :root { --section-py:30px; --header-h:62px; }
  .container, .header__inner, .hero__content, .inner-banner__content, .footer__bottom-inner { padding-left:16px; padding-right:16px; }
  .header__logo-name { font-size:15px; }
  .header__logo-sub { font-size:8px; letter-spacing:.04em; }
  .hero { height:480px; min-height:440px; max-height:75svh; }
  .hero__content { padding-top:70px; padding-bottom:45px; }
  .hero__title { font-size:clamp(26px,7vw,32px); }
  .hero__subtitle { font-size:14px; margin-bottom:22px; }
  .hero__scroll { bottom:16px; }
  .hero__actions { gap:8px; }
  .btn { padding:10px 16px; }
  .section > .container > [style*="margin-bottom:4"], .section > .container > [style*="margin-bottom:36"] { margin-bottom:22px!important; }
  .section-subtitle { font-size:14px; }
  .stats { grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; }
  .stats-section { padding:20px 0; }
  .stat-item { padding:14px 6px; }
  .stat-item__number { font-size:30px; }
  .stat-item__label { font-size:12px; }
  .services-grid, .cases-grid { grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; }
  .service-card { padding:18px 10px; }
  .service-card__icon { width:42px; height:42px; margin-bottom:10px; font-size:20px; }
  .service-card__title { font-size:15px; }
  .service-card__desc { font-size:12px; }
  .route-grid { grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; }
  .route-item { padding:13px 10px; gap:7px; align-items:flex-start; }
  .route-item > i { font-size:13px!important; margin-top:5px; }
  .route-item__line { font-size:13px; }
  .route-item__line i { margin:0 2px; }
  .route-item__info { font-size:11px; line-height:1.6; margin-top:4px; }
  .case-card { padding:18px 10px; }
  .case-card__logo { width:64px; height:64px; margin-bottom:10px; }
  .case-card__title { font-size:14px; }
  .case-card__desc { font-size:12px; }
  .advantages { gap:10px; }
  .adv-item { padding:14px; gap:12px; }
  .news-item-home, .news-item--page { flex-direction:row; gap:12px; padding:12px; align-items:flex-start; }
  .news-item-home__thumb, .news-item--page__thumb { width:28%; height:88px; aspect-ratio:auto; }
  .news-item-home__title, .news-item--page__title { font-size:14px; }
  .news-item-home__desc, .news-item--page__desc { font-size:12px; margin-bottom:5px; }
  .news-item-home__date, .news-item--page__date { font-size:11px; }
  .cta-section { padding:30px 0; }
  .cta-card { padding:24px 14px; }
  .cta-card .btn { font-size:14px!important; padding:10px 16px!important; }
  .footer__grid { grid-template-columns:minmax(0,1.4fr) minmax(0,1fr); padding:30px 16px 20px; gap:22px 16px; }
  .footer__grid > :first-child, .footer__grid > :nth-child(2) { grid-column:1/-1; }
  .footer__links { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:10px; }
  .footer__col-title { margin-bottom:14px; }
  .footer__brand-desc { margin-bottom:10px; }
  .footer__contact-item { font-size:12px; }
  .footer__qrcode { width:84px; height:84px; }
  .footer__bottom-inner { font-size:11px; }
  .inner-banner { height:210px!important; }
  .inner-banner__subtitle { font-size:14px; }
  .list-header { margin-bottom:24px; }
  .list-grid { grid-template-columns:repeat(2,minmax(0,1fr)); gap:12px; }
  .card__body { padding:12px 10px; }
  .card__title { font-size:14px; -webkit-line-clamp:2; }
  .card__desc { font-size:12px; }
  .card__meta { flex-wrap:wrap; gap:6px; font-size:11px; }
  .related-grid { grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; }
  .detail__params { gap:8px; }
  .detail__param { padding:12px 8px; }
  .detail__param-value { font-size:14px; }
  .detail__meta-row { gap:10px; }
  .detail__pager { overflow-wrap:anywhere; }
  .form-card { padding:20px 16px; }
  .form-control { min-width:0; font-size:16px; }
  .quote-grid, .contact-grid, .about-grid { gap:24px; }
  .search-form-row { flex-wrap:wrap; }
  .search-input-wrap { min-width:180px; }
  .pagination { flex-wrap:wrap; margin-top:28px; }
  .network-grid { grid-template-columns:repeat(3,minmax(0,1fr)); gap:8px; }
  .network-city { padding:10px 6px; }
}