/* ============================================================
   喜悦车服 JOY AUTOCARE — 全站共享样式
   设计规范：扁平化清爽风 · 5色体系（3主色 + 2强调点缀色）
   主色 #1677FF | 浅灰 #F5F7FA | 文字 #333/#666
   强调① 活力橙 #FF7D2C（转化/行动：CTA按钮·关键词·案例角标）
   强调② 清新青绿 #14B8A6（正向/状态：成功提示·营业状态）
   卡片：8px圆角 · 低柔阴影 rgba(0,0,0,.06) · 白底
   ============================================================ */

/* ---------- 变量 ---------- */
:root {
  --primary: #1677FF;
  --primary-dark: #0E63DC;      /* 主按钮 hover 轻微加深 */
  --primary-tint: rgba(22, 119, 255, 0.08); /* 主色浅底(图标底/标签底) */

  /* 新增强调色 ①：活力橙 — 转化按钮/高亮词/角标 */
  --accent: #FF7D2C;
  --accent-dark: #E8680F;       /* 橙色 hover 轻微加深 */
  --accent-tint: rgba(255, 125, 44, 0.10);

  /* 新增强调色 ②：清新青绿 — 成功/营业等正向状态 */
  --teal: #14B8A6;
  --teal-dark: #0E9C8C;
  --teal-tint: rgba(20, 184, 166, 0.12);
  --bg-soft: #F5F7FA;           /* 辅助浅灰背景 */
  --text-1: #333333;
  --text-2: #666666;
  --text-3: #999999;            /* 仅极少量备注文字 */
  --border: #E7EBF1;            /* 输入框/分隔浅灰边 */
  --radius: 8px;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 8px 20px rgba(0, 0, 0, 0.10);
  --gap-section: 60px;          /* PC 模块间距 */
  --gap-card: 24px;
}

/* ---------- 基础 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-1);
  background: #fff;
  padding-top: 64px; /* 固定导航高度 */
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { display: block; max-width: 100%; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block;
  padding: 10px 26px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: 15px;
  line-height: 1.6;
  cursor: pointer;
  text-align: center;
  transition: background-color .2s ease, color .2s ease, border-color .2s ease;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-dark); }

.btn-outline {
  background: #fff;
  border-color: var(--primary);
  color: var(--primary);
}
.btn-outline:hover { background: #F0F6FF; }

/* 强调按钮：活力橙 — 用于「立即咨询/立即提交/预约服务」等转化入口 */
.btn-accent {
  background: var(--accent);
  color: #fff;
}
.btn-accent:hover { background: var(--accent-dark); }

.btn-outline-accent {
  background: #fff;
  border-color: var(--accent);
  color: var(--accent);
}
.btn-outline-accent:hover { background: var(--accent-tint); }

.btn-sm { padding: 7px 18px; font-size: 14px; }
.btn-block { display: block; width: 100%; }

/* ---------- 通用卡片 ---------- */
.card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  transition: transform .25s ease, box-shadow .25s ease;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

/* ---------- 区块结构 ---------- */
.section { padding: var(--gap-section) 0; }
.section-soft { background: var(--bg-soft); }

.sec-head { text-align: center; margin-bottom: 40px; }
.sec-head .sec-bar {
  display: inline-block;
  width: 32px; height: 4px;
  border-radius: 2px;
  background: var(--primary);
  margin-bottom: 14px;
}
.sec-title { font-size: 28px; font-weight: 600; color: var(--text-1); }
.sec-sub { margin-top: 10px; font-size: 15px; color: var(--text-2); }

/* ---------- 网格 ---------- */
.grid { display: grid; gap: var(--gap-card); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

/* ---------- 固定导航 ---------- */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid #F0F2F5;
}
.nav-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark { flex-shrink: 0; }
.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: #1B2C5F;
  line-height: 1.15;
}
.logo-text em {
  display: block;
  font-style: italic;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  color: #FF7D2C;
}

.nav-menu {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 40px;
}
.nav-menu a {
  font-size: 15px;
  color: var(--text-1);
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}
.nav-menu a:hover { color: var(--primary); }
.nav-menu a.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }

.nav-right { display: flex; align-items: center; gap: 14px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  padding: 8px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--text-1);
  border-radius: 1px;
}

/* ---------- 首页 Banner（静态，无轮播） ---------- */
.hero { background: var(--bg-soft); padding: 72px 0; }
.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  align-items: center;
  gap: 56px;
}
.hero-title { font-size: 28px; font-weight: 700; line-height: 1.45; color: var(--text-1); }
.hero-title .accent { color: var(--accent); }
.hero-desc { margin-top: 18px; font-size: 16px; color: var(--text-2); max-width: 480px; }
.hero-actions { margin-top: 30px; display: flex; gap: 16px; }
.hero-img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.hero-img img { width: 100%; height: 340px; object-fit: cover; }

/* ---------- 核心服务卡片 ---------- */
.svc-card { text-align: left; }
.svc-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius);
  background: var(--primary-tint);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.svc-icon svg { width: 28px; height: 28px; }
.svc-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.svc-card p { font-size: 14px; color: var(--text-2); margin-bottom: 16px; }
.svc-more {
  font-size: 14px;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.svc-more:hover { text-decoration: underline; }

/* ---------- 合作案例 ---------- */
.case-card { padding: 0; overflow: hidden; }
.case-card .case-img { height: 190px; overflow: hidden; }
.case-card .case-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .3s ease;
}
.case-card:hover .case-img img { transform: scale(1.03); }
.case-body { padding: 18px 20px 20px; }
.case-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--accent);
  background: var(--accent-tint);
  border-radius: 4px;
  padding: 2px 10px;
  margin-bottom: 10px;
}
.case-body h3 { font-size: 17px; font-weight: 600; margin-bottom: 6px; }
.case-body p { font-size: 13px; color: var(--text-2); }

.center-more { text-align: center; margin-top: 36px; }

/* ---------- 品牌优势 ---------- */
.adv-card { text-align: center; }
.adv-icon {
  width: 64px; height: 64px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--primary-tint);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.adv-icon svg { width: 30px; height: 30px; }
.adv-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.adv-card p { font-size: 14px; color: var(--text-2); }

/* ---------- 表单 ---------- */
.form-panel { max-width: 760px; margin: 0 auto; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-item { display: flex; flex-direction: column; }
.form-item.full { grid-column: 1 / -1; }
.form-item label { font-size: 14px; color: var(--text-1); margin-bottom: 8px; }
.form-item label i { font-style: normal; color: var(--primary); margin-left: 2px; }
.form-item input,
.form-item select,
.form-item textarea {
  font-family: inherit;
  font-size: 14px;
  color: var(--text-1);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 11px 14px;
  outline: none;
  transition: border-color .2s ease;
}
.form-item textarea { resize: vertical; min-height: 110px; }
.form-item input:focus,
.form-item select:focus,
.form-item textarea:focus { border-color: var(--primary); }
.form-item input.is-error,
.form-item select.is-error { border-color: #F5222D; }

.form-tip { font-size: 12px; color: var(--text-2); margin-top: 14px; text-align: center; }
.form-msg {
  display: none;
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--radius);
  background: var(--teal-tint);
  color: var(--teal-dark);
  font-size: 14px;
  text-align: center;
}
.form-msg.show { display: block; }
.form-msg.error { background: rgba(245, 34, 45, 0.06); color: #F5222D; }

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  padding: 48px 0 0;
  margin-top: var(--gap-section);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 32px;
  padding-bottom: 36px;
}
.footer-brand p { margin-top: 14px; font-size: 13px; color: var(--text-2); max-width: 280px; }
.footer-col h4 { font-size: 15px; font-weight: 600; margin-bottom: 14px; color: var(--text-1); }
.footer-col li { margin-bottom: 9px; }
.footer-col a, .footer-col span { font-size: 13px; color: var(--text-2); }
.footer-col a:hover { color: var(--primary); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 16px 0;
  text-align: center;
  font-size: 12px;
  color: var(--text-2);
}
.footer-bottom a { color: inherit; text-decoration: none; }
.footer-bottom a:hover { color: var(--primary); }

/* ---------- 子页顶部标题区 ---------- */
.page-hero { background: var(--bg-soft); padding: 48px 0; text-align: center; }
.page-hero h1 { font-size: 28px; font-weight: 700; }
.page-hero p { margin-top: 10px; font-size: 15px; color: var(--text-2); }

/* ---------- 产品服务页 ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 36px;
}
.filter-btn {
  padding: 8px 22px;
  font-size: 14px;
  color: var(--text-2);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color .2s ease, color .2s ease, border-color .2s ease;
}
.filter-btn:hover { color: var(--primary); border-color: var(--primary); }
.filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.svc-detail { margin: 0 0 14px; }
.svc-detail li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  color: var(--text-2);
  margin-bottom: 6px;
}
.svc-detail li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--primary);
}
.svc-meta {
  font-size: 13px;
  color: var(--text-2);
  padding: 10px 0 16px;
  border-top: 1px dashed var(--border);
  margin-top: 4px;
}
.svc-meta b { color: var(--text-1); font-weight: 600; }

/* ---------- 关于我们 ---------- */
.about-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.about-split + .about-split { margin-top: var(--gap-section); }
.about-split .about-img { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.about-split .about-img img { width: 100%; height: 320px; object-fit: cover; }
.about-text h2 { font-size: 24px; font-weight: 600; margin-bottom: 16px; }
.about-text p { font-size: 15px; color: var(--text-2); margin-bottom: 12px; }

/* 品牌历程时间线 */
.timeline {
  max-width: 760px;
  margin: 0 auto;
  position: relative;
  padding-left: 28px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 7px; top: 6px; bottom: 6px;
  width: 2px;
  background: var(--primary-tint);
}
.timeline-item { position: relative; padding-bottom: 28px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -27px; top: 8px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--primary);
}
.timeline-item .year { font-size: 18px; font-weight: 700; color: var(--primary); }
.timeline-item p { font-size: 14px; color: var(--text-2); margin-top: 4px; }

/* 企业实力数据 */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap-card); margin-top: 8px; }
.stat-card { text-align: center; padding: 28px 16px; }
.stat-card .num { font-size: 32px; font-weight: 700; color: var(--primary); line-height: 1.2; }
.stat-card .num i { font-style: normal; font-size: 16px; margin-left: 2px; }
.stat-card .label { margin-top: 6px; font-size: 14px; color: var(--text-2); }

/* 团队介绍 */
.team-card { text-align: center; }
.team-avatar {
  width: 72px; height: 72px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--primary-tint);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.team-avatar svg { width: 34px; height: 34px; }
.team-card h3 { font-size: 17px; font-weight: 600; }
.team-card .role { font-size: 13px; color: var(--primary); margin: 4px 0 10px; }
.team-card p { font-size: 13px; color: var(--text-2); }

/* ---------- 联系我们 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 40px;
  align-items: start;
}
.contact-info .info-item { display: flex; gap: 16px; padding: 18px 0; }
.contact-info .info-item + .info-item { border-top: 1px solid var(--border); }
.info-icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: var(--radius);
  background: var(--primary-tint);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.info-icon svg { width: 22px; height: 22px; }
/* 联系页图标双色点缀：热线=橙(行动入口) · 营业时间=青绿(正向状态) */
.info-icon.orange { background: var(--accent-tint); color: var(--accent); }
.info-icon.teal { background: var(--teal-tint); color: var(--teal-dark); }
.info-item h3 { font-size: 15px; font-weight: 600; }
.info-item p { font-size: 14px; color: var(--text-2); margin-top: 3px; }

.contact-form-card { padding: 28px; }

.map-panel {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--bg-soft);
  position: relative;
}
.map-panel svg { display: block; width: 100%; height: 340px; }
.map-note {
  position: absolute;
  left: 50%; bottom: 16px;
  transform: translateX(-50%);
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 10px 18px;
  font-size: 13px;
  color: var(--text-2);
  white-space: nowrap;
}
.map-note b { color: var(--text-1); }

/* ============================================================
   H5 移动端自适应（独立布局逻辑，非缩放）
   ============================================================ */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --gap-section: 30px; }

  body { padding-top: 56px; font-size: 14px; }
  .container { padding: 0 16px; }

  /* 字号同比缩小约20% */
  .sec-title { font-size: 22px; }
  .sec-head { margin-bottom: 26px; }
  .page-hero h1 { font-size: 22px; }
  .hero-title { font-size: 22px; }
  .hero-desc { font-size: 14px; }
  .about-text h2 { font-size: 20px; }
  .stat-card .num { font-size: 26px; }

  /* 导航：折叠竖向菜单 */
  .nav-inner { height: 56px; }
  .logo-text { font-size: 18px; }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .nav-menu {
    position: absolute;
    transform: none;
    display: none;
    top: 56px; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 8px 0;
  }
  .nav-menu.open { display: flex; }
  .nav-menu a {
    padding: 13px 24px;
    border-bottom: none;
    font-size: 15px;
  }
  .nav-menu a.active { background: var(--primary-tint); border-bottom: none; }

  /* Banner 上下排版：文字在上，图片在下 */
  .hero { padding: 32px 0 40px; }
  .hero-inner { grid-template-columns: 1fr; gap: 24px; }
  .hero-img img { height: 210px; }
  .hero-actions { flex-wrap: wrap; gap: 12px; }
  .hero-actions .btn { flex: 1; }

  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid { gap: 14px; }
  .card { padding: 18px; }

  .case-card .case-img { height: 140px; }
  .case-body { padding: 14px 16px 16px; }
  .case-body h3 { font-size: 15px; }

  .svc-card h3 { font-size: 16px; }
  .svc-card p { font-size: 13px; }

  /* 表单单列 */
  .form-grid { grid-template-columns: 1fr; gap: 14px; }
  .form-panel { max-width: 100%; }
  .contact-form-card { padding: 20px 16px; }

  /* 子页拆单列 */
  .about-split { grid-template-columns: 1fr; gap: 20px; }
  .about-split.reverse .about-img { order: -1; }
  .about-split .about-img img { height: 200px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .stat-card { padding: 20px 12px; }

  .contact-grid { grid-template-columns: 1fr; gap: 24px; }
  .map-panel svg { height: 220px; }
  .map-note { font-size: 12px; padding: 8px 12px; max-width: 92%; white-space: normal; text-align: center; }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 22px; }
  .footer-brand { grid-column: 1 / -1; }
  .site-footer { padding-top: 32px; }
}

@media (max-width: 400px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr 1fr; }
  .team-card, .adv-card { padding: 16px 10px; }
}