/* ============================================================
   博兴回收 前台样式 —— 工业橙 + 炭黑 硬朗风格 / 全端自适应
   ============================================================ */
:root {
  --orange: #e8640c;
  --orange-light: #f57c1f;
  --orange-dark: #c24e02;
  --orange-bg: #fdf1e7;
  --ink: #1b2129;
  --ink-dark: #12161c;
  --gold: #ffc233;
  --gray-bg: #f5f6f8;
  --text: #333;
  --text-sub: #666;
  --text-light: #8a94a3;
  --border: #e5e9f0;
  --radius: 4px;
  --shadow: 0 4px 20px rgba(27, 33, 41, 0.08);
  --shadow-hover: 0 10px 30px rgba(232, 100, 12, 0.18);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  /* 禁止手机浏览器自动放大字号（横竖屏切换） */
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  /* 锚点定位时为吸顶导航留位 */
  scroll-padding-top: 88px;
}
/* 让 HTML5 hidden 属性永远不被 CSS display 覆盖 */
[hidden] { display: none !important; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  color: var(--text); background: #fff; font-size: 15px; line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  /* 超长英文/数字串不撑破布局 */
  overflow-wrap: break-word;
  word-wrap: break-word;
  -webkit-tap-highlight-color: rgba(232, 100, 12, .12);
}
a { color: inherit; text-decoration: none; }
img, video { max-width: 100%; height: auto; display: block; border: 0; }
table { max-width: 100%; border-collapse: collapse; }
ul, ol { list-style: none; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.icon { width: 1em; height: 1em; vertical-align: -0.12em; }
/* 所有栅格 / 弹性子项默认允许收缩，防止内容把页面撑宽 */
.svc-card, .case-card, .adv-item, .mat-card, .step-item,
.news-card, .news-body, .footer-col, .detail-main, .detail-side,
.side-box, .cta-text, .cta-btns, .about-img, .about-stats, .stat-item { min-width: 0; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block; padding: 11px 30px; border-radius: var(--radius);
  font-size: 15px; text-align: center; cursor: pointer; border: 1px solid transparent;
  transition: all .25s; line-height: 1.5; letter-spacing: 1px;
}
.btn-main { background: var(--orange); color: #fff; }
.btn-main:hover { background: var(--orange-light); }
.btn-light { background: #fff; color: var(--orange); }
.btn-light:hover { background: var(--orange-bg); }
.btn-ghost { border-color: rgba(255,255,255,.6); color: #fff; background: transparent; }
.btn-ghost:hover { background: rgba(255,255,255,.15); border-color: #fff; }
.btn-lg { padding: 14px 36px; font-size: 16px; }
.btn-block { display: block; width: 100%; }
.btn-copy { background: var(--orange); color: #fff; }

/* ---------- 顶部条 ---------- */
.topbar { background: var(--ink-dark); color: rgba(255,255,255,.85); font-size: 13px; }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; height: 36px; }
.topbar-info { display: flex; gap: 18px; }
.topbar-tel { color: var(--gold); font-weight: bold; }
.topbar-addr { display: inline; }

/* ---------- 头部导航 ---------- */
.header { background: #fff; box-shadow: 0 1px 0 var(--border); position: sticky; top: 0; z-index: 900; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 24px; }
.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-mark {
  width: 48px; height: 48px; border-radius: var(--radius); background: linear-gradient(135deg, var(--orange) 0%, var(--orange-dark) 100%);
  color: #fff; font-size: 26px; font-weight: bold; display: flex; align-items: center; justify-content: center;
}
.logo-img { height: 48px; width: auto; }
.logo-text { display: flex; flex-direction: column; line-height: 1.3; }
.logo-text strong { font-size: 24px; color: var(--ink); letter-spacing: 2px; }
.logo-text em { font-style: normal; font-size: 12px; color: var(--text-light); letter-spacing: 1px; }
.nav { display: flex; align-items: center; gap: 30px; }
.nav-list { display: flex; gap: 6px; }
.nav-item > a {
  display: flex; align-items: center; gap: 4px; padding: 26px 16px; font-size: 16px;
  color: var(--text); position: relative; transition: color .2s;
}
.nav-item > a::after {
  content: ""; position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%);
  width: 0; height: 3px; background: var(--orange); border-radius: 2px; transition: width .25s;
}
.nav-item > a:hover, .nav-item.active > a { color: var(--orange); }
.nav-item > a:hover::after, .nav-item.active > a::after { width: 26px; }
.caret { font-size: 11px; color: var(--text-light); font-style: normal; }
.nav-item.has-drop { position: relative; }
.drop-menu {
  position: absolute; top: 100%; left: 50%; transform: translateX(-50%) translateY(10px);
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-hover);
  min-width: 170px; padding: 8px 0; opacity: 0; visibility: hidden; transition: all .25s;
}
.nav-item.has-drop:hover .drop-menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.drop-menu a { display: block; padding: 10px 22px; font-size: 14px; white-space: nowrap; color: var(--text-sub); }
.drop-menu a:hover { background: var(--orange-bg); color: var(--orange); }
.nav-phone {
  display: inline-flex; align-items: center; gap: 8px; color: var(--orange); font-weight: bold;
  font-size: 20px; border-left: 1px solid var(--border); padding-left: 26px;
}
.nav-phone .icon { font-size: 22px; color: var(--gold); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2.5px; background: var(--ink); margin: 5px 0; border-radius: 2px; transition: .3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------- 轮播 ---------- */
.banner { position: relative; overflow: hidden; }
.banner-item {
  position: relative; height: 560px; background-size: cover; background-position: center;
  opacity: 0; visibility: hidden; transition: opacity .8s; position: absolute; inset: 0;
}
.banner-item.active { opacity: 1; visibility: visible; position: relative; }
.banner-mask { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(18,22,28,.78) 0%, rgba(18,22,28,.42) 60%, rgba(18,22,28,.18) 100%); }
.banner-content { position: relative; z-index: 2; height: 100%; display: flex; flex-direction: column; justify-content: center; color: #fff; max-width: 1200px; }
.banner-content h2 { font-size: 42px; letter-spacing: 2px; text-shadow: 0 2px 12px rgba(0,0,0,.35); border-left: 5px solid var(--orange); padding-left: 20px; }
.banner-content p { font-size: 18px; margin: 16px 0 22px; color: rgba(255,255,255,.92); padding-left: 25px; }
.banner-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; padding-left: 25px; }
.banner-tags span {
  padding: 6px 16px; border: 1px solid rgba(255,255,255,.5); border-radius: 2px;
  font-size: 14px; color: #fff; background: rgba(255,255,255,.1); backdrop-filter: blur(2px);
}
.banner-btns { display: flex; gap: 16px; padding-left: 25px; }
.banner-dots { position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%); display: flex; gap: 10px; z-index: 3; }
.banner-dots button {
  width: 32px; height: 4px; border: none; border-radius: 2px; background: rgba(255,255,255,.45);
  cursor: pointer; transition: background .3s; padding: 0;
}
.banner-dots button.active { background: var(--orange); }
.banner-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
  width: 46px; height: 46px; border-radius: var(--radius); border: 1px solid rgba(255,255,255,.4);
  background: rgba(18,22,28,.25); color: #fff; font-size: 24px; cursor: pointer; transition: .25s;
}
.banner-arrow:hover { background: var(--orange); border-color: var(--orange); }
.banner-arrow.prev { left: 20px; }
.banner-arrow.next { right: 20px; }

/* ---------- 通用板块 ---------- */
.section { padding: 70px 0; }
.section-gray { background: var(--gray-bg); }
.section-head { text-align: center; margin-bottom: 46px; }
.section-head h2 {
  font-size: 30px; color: var(--ink); position: relative; display: inline-block; padding: 0 14px;
}
.section-head h2 span { display: block; font-size: 12px; color: var(--text-light); letter-spacing: 4px; margin-top: 6px; font-weight: normal; }
.section-head h2::before, .section-head h2::after {
  content: ""; position: absolute; top: 22px; width: 46px; height: 3px;
  background: linear-gradient(90deg, transparent, var(--orange)); border-radius: 2px;
}
.section-head h2::before { left: -50px; }
.section-head h2::after { right: -50px; transform: scaleX(-1); }
.section-head p { color: var(--text-sub); margin-top: 10px; font-size: 15px; }

/* ---------- 业务卡片 ---------- */
.svc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.svc-card {
  background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
  transition: all .3s; display: flex; flex-direction: column; border-top: 3px solid transparent;
}
.svc-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-top-color: var(--orange); }
.svc-img { height: 190px; overflow: hidden; }
.svc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.svc-card:hover .svc-img img { transform: scale(1.06); }
.svc-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.svc-body h3 { font-size: 19px; color: var(--ink); margin-bottom: 10px; }
.svc-body p { font-size: 14px; color: var(--text-sub); flex: 1; }
.svc-more { display: inline-block; margin-top: 14px; color: var(--orange); font-size: 14px; font-weight: bold; }
.svc-card:hover .svc-more { color: var(--orange-light); }

/* ---------- 优势 ---------- */
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.adv-item {
  background: #fff; border-radius: var(--radius); padding: 30px 26px; box-shadow: var(--shadow);
  display: flex; gap: 18px; align-items: flex-start; transition: all .3s;
}
.adv-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.adv-icon {
  width: 58px; height: 58px; flex-shrink: 0; border-radius: var(--radius); background: var(--orange-bg);
  color: var(--orange); display: flex; align-items: center; justify-content: center; font-size: 28px;
  transition: all .3s;
}
.adv-item:hover .adv-icon { background: var(--orange); color: #fff; }
.adv-item h3 { font-size: 17px; color: var(--ink); margin-bottom: 8px; }
.adv-item p { font-size: 13.5px; color: var(--text-sub); }

/* ---------- 物资范围 ---------- */
.mat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.mat-card { background: #fff; border-radius: var(--radius); padding: 28px 30px; box-shadow: var(--shadow); border-top: 3px solid var(--orange); }
.mat-card h3 { font-size: 18px; color: var(--ink); margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.mat-card h3::before { content: ""; width: 4px; height: 18px; background: var(--orange); border-radius: 2px; }
.mat-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.mat-tags span {
  padding: 5px 14px; background: var(--gray-bg); border-radius: 2px; font-size: 13.5px;
  color: var(--text-sub); border: 1px solid var(--border); transition: all .2s;
}
.mat-tags span:hover { background: var(--orange); color: #fff; border-color: var(--orange); }

/* ---------- 流程 ---------- */
.step-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; position: relative; }
.step-item { text-align: center; background: #fff; border-radius: var(--radius); padding: 26px 12px 22px; box-shadow: var(--shadow); position: relative; }
.step-num {
  width: 44px; height: 44px; margin: 0 auto 14px; border-radius: 2px;
  background: linear-gradient(135deg, var(--orange) 0%, var(--orange-dark) 100%);
  color: #fff; font-weight: bold; font-size: 17px; display: flex; align-items: center; justify-content: center;
}
.step-item h3 { font-size: 15.5px; color: var(--ink); margin-bottom: 8px; }
.step-item p { font-size: 12.5px; color: var(--text-sub); }

/* ---------- 案例 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: all .3s; }
.case-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.case-img { height: 210px; overflow: hidden; }
.case-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.case-card:hover .case-img img { transform: scale(1.06); }
.case-body { padding: 20px 22px; border-top: 3px solid var(--orange); }
.case-body h3 { font-size: 16.5px; color: var(--ink); margin-bottom: 8px; }
.case-body p { font-size: 13.5px; color: var(--text-sub); }

/* ---------- 覆盖区域 ---------- */
.area-wrap { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 40px 44px; }
.area-tags-wrap { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; }
.area-tag {
  padding: 8px 22px; background: var(--orange-bg); color: var(--orange); border-radius: 2px;
  font-size: 14.5px; font-weight: bold; border: 1px solid transparent; transition: all .2s;
}
.area-tag:hover { background: var(--orange); color: #fff; }
.area-text { color: var(--text-sub); font-size: 14.5px; }

/* ---------- CTA ---------- */
.cta-strip { background: linear-gradient(120deg, var(--ink-dark) 0%, var(--ink) 55%, var(--orange-dark) 130%); color: #fff; padding: 52px 0; }
.cta-inner { display: flex; justify-content: space-between; align-items: center; gap: 30px; flex-wrap: wrap; }
.cta-text h2 { font-size: 26px; margin-bottom: 8px; }
.cta-text h2 em { color: var(--gold); font-style: normal; }
.cta-text p { color: rgba(255,255,255,.85); }
.cta-btns { display: flex; gap: 16px; flex-wrap: wrap; }

/* ---------- 内页横幅 / 面包屑 ---------- */
.page-banner {
  background: linear-gradient(120deg, var(--ink-dark) 0%, var(--ink) 65%, var(--orange-dark) 135%);
  color: #fff; padding: 66px 0; text-align: center;
}
.page-banner h1 { font-size: 32px; letter-spacing: 3px; }
.page-banner p { color: rgba(255,255,255,.75); margin-top: 10px; font-size: 13px; letter-spacing: 6px; text-transform: uppercase; }
.breadcrumb { background: var(--gray-bg); border-bottom: 1px solid var(--border); font-size: 13.5px; color: var(--text-light); }
.breadcrumb .container { display: flex; align-items: center; gap: 8px; height: 44px; flex-wrap: wrap; }
.breadcrumb a:hover { color: var(--orange); }
.breadcrumb i { font-style: normal; color: #ccc; }
.breadcrumb em { font-style: normal; color: var(--text); }

/* ---------- 关于我们 ---------- */
.about-wrap { display: grid; grid-template-columns: 1.2fr 1fr; gap: 44px; align-items: center; }
.about-img img { border-radius: var(--radius); box-shadow: var(--shadow-hover); width: 100%; }
.about-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.stat-item { background: var(--gray-bg); border-radius: var(--radius); text-align: center; padding: 34px 10px; transition: all .3s; }
.stat-item:hover { background: var(--orange); }
.stat-item strong { display: block; font-size: 34px; color: var(--orange); font-family: Georgia, serif; }
.stat-item span { font-size: 14px; color: var(--text-sub); }
.stat-item:hover strong { color: #fff; }
.stat-item:hover span { color: rgba(255,255,255,.85); }

/* ---------- 详情页 ---------- */
/* 服务详情：左侧栏 + 右侧主区 */
.detail-wrap { display: grid; grid-template-columns: 260px 1fr; gap: 32px; align-items: start; }
.detail-side { display: flex; flex-direction: column; gap: 20px; position: sticky; top: 96px; }
/* 新闻详情：主区 + 右侧栏（grid 按 HTML 顺序分配列，所以这里改比例） */
.news-detail-wrap { display: grid; grid-template-columns: 1fr 280px; gap: 32px; align-items: start; }
.news-detail-wrap .detail-side { position: sticky; top: 96px; }
.side-box { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 22px; }
.side-title {
  font-size: 17px; color: var(--ink); padding-left: 12px; margin-bottom: 16px; position: relative;
}
.side-title::before { content: ""; position: absolute; left: 0; top: 4px; bottom: 4px; width: 4px; background: var(--orange); border-radius: 2px; }
.side-link { display: block; padding: 11px 14px; border-radius: 2px; font-size: 14.5px; color: var(--text-sub); margin-bottom: 4px; transition: all .2s; }
.side-link:hover { background: var(--orange-bg); color: var(--orange); }
.side-link.active { background: var(--orange); color: #fff; }
.side-contact { background: linear-gradient(150deg, var(--ink-dark), var(--ink)); color: #fff; }
.side-contact .side-title { color: #fff; }
.side-contact .side-title::before { background: var(--gold); }
.side-phone { display: block; font-size: 22px; font-weight: bold; color: var(--gold); margin-bottom: 6px; }
.side-contact p { font-size: 13.5px; color: rgba(255,255,255,.85); margin-bottom: 4px; }
.side-contact .btn { margin-top: 14px; background: var(--orange); color: #fff; }
.side-contact .btn:hover { background: var(--orange-light); }
.side-news { display: block; font-size: 13.5px; color: var(--text-sub); padding: 9px 0; border-bottom: 1px dashed var(--border); transition: color .2s; }
.side-news:last-child { border-bottom: none; }
.side-news:hover { color: var(--orange); }
.side-empty { font-size: 13px; color: var(--text-light); }
.detail-main { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 38px 42px; min-width: 0; }
/* 新闻详情页正文区域更宽松 */
.news-detail-wrap .detail-main { padding: 44px 52px; }
.news-detail-wrap .rich-content { font-size: 16px; line-height: 1.85; }
.news-detail-wrap .rich-content p { margin-bottom: 16px; }
.detail-title { font-size: 26px; color: var(--ink); padding-bottom: 16px; border-bottom: 1px solid var(--border); margin-bottom: 22px; }
.detail-cover { border-radius: var(--radius); overflow: hidden; margin-bottom: 26px; }
.detail-cover img { width: 100%; }

/* ---------- 富文本 ---------- */
.rich-content { font-size: 15.5px; color: #444; }
.rich-content h2 { font-size: 21px; color: var(--ink); margin: 30px 0 14px; padding-left: 12px; position: relative; }
.rich-content h2::before { content: ""; position: absolute; left: 0; top: 5px; bottom: 5px; width: 4px; background: var(--orange); border-radius: 2px; }
.rich-content h2:first-child { margin-top: 0; }
.rich-content h3 { font-size: 17.5px; color: var(--orange); margin: 22px 0 10px; }
.rich-content p { margin-bottom: 13px; }
.rich-content ul, .rich-content ol { margin: 0 0 13px 4px; }
.rich-content li { position: relative; padding-left: 18px; margin-bottom: 7px; }
.rich-content li::before { content: ""; position: absolute; left: 0; top: 11px; width: 7px; height: 7px; border-radius: 1px; background: var(--orange-light); }
.rich-content ol { counter-reset: ol; }
.rich-content ol li::before { content: counter(ol); counter-increment: ol; width: 18px; height: 18px; border-radius: 2px; background: var(--orange); color: #fff; font-size: 12px; text-align: center; line-height: 18px; top: 3px; }
.rich-content strong { color: var(--ink); }
.rich-content img { border-radius: 4px; margin: 10px 0; }
.rich-content table { width: 100%; border-collapse: collapse; margin: 14px 0; }
.rich-content th, .rich-content td { border: 1px solid var(--border); padding: 9px 12px; font-size: 14px; text-align: left; }
.rich-content th { background: var(--orange-bg); color: var(--ink); }

/* ---------- 新闻 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.news-card {
  display: grid; grid-template-columns: 220px 1fr; gap: 20px; background: #fff; border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px; transition: all .3s;
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.news-img { border-radius: 2px; overflow: hidden; height: 140px; }
.news-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.news-card:hover .news-img img { transform: scale(1.06); }
.news-body { display: flex; flex-direction: column; min-width: 0; }
.news-meta { display: flex; align-items: center; gap: 10px; font-size: 12.5px; color: var(--text-light); margin-bottom: 8px; }
.news-cat { background: var(--orange-bg); color: var(--orange); padding: 2px 10px; border-radius: 2px; font-weight: bold; }
.news-body h3 { font-size: 17px; color: var(--ink); margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.news-body p { font-size: 13.5px; color: var(--text-sub); flex: 1; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-more { color: var(--orange); font-size: 13px; font-weight: bold; margin-top: 8px; }
.news-info { display: flex; gap: 16px; font-size: 13px; color: var(--text-light); margin-bottom: 22px; padding-bottom: 14px; border-bottom: 1px solid var(--border); }
.news-nav { display: flex; justify-content: space-between; gap: 16px; margin-top: 30px; padding-top: 18px; border-top: 1px solid var(--border); font-size: 14px; flex-wrap: wrap; }
.news-nav a { color: var(--orange); }
.news-nav a:hover { text-decoration: underline; }
.news-nav span { color: var(--text-light); }
.pager { display: flex; justify-content: center; gap: 10px; margin-top: 40px; }
.pg { display: inline-flex; align-items: center; justify-content: center; min-width: 38px; height: 38px; padding: 0 12px; border-radius: 2px; border: 1px solid var(--border); background: #fff; color: var(--text-sub); font-size: 14px; }
.pg:hover { border-color: var(--orange); color: var(--orange); }
.pg.active { background: var(--orange); border-color: var(--orange); color: #fff; }

/* ---------- 联系我们 ---------- */
.contact-wrap { display: grid; grid-template-columns: 380px 1fr; gap: 34px; align-items: start; }
.contact-t { font-size: 22px; color: var(--ink); margin-bottom: 20px; padding-left: 12px; position: relative; }
.contact-t::before { content: ""; position: absolute; left: 0; top: 5px; bottom: 5px; width: 4px; background: var(--orange); border-radius: 2px; }
.ci-card { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px 22px; margin-bottom: 14px; }
.ci-card h3 { font-size: 13px; color: var(--text-light); margin-bottom: 6px; }
.ci-card p { font-size: 17px; color: var(--ink); font-weight: bold; }
.ci-card p a { color: var(--orange); }
.ci-wechat { text-align: center; }
.ci-wechat p { font-size: 15px; }
.ci-qr { width: 160px; margin: 14px auto; border: 1px solid var(--border); border-radius: 4px; padding: 6px; }
.ci-area { font-size: 13.5px; color: var(--text-sub); margin-top: 16px; }
.contact-form-wrap { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 36px 38px; }
.contact-sub { color: var(--text-light); font-size: 14px; margin: -12px 0 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-item { margin-bottom: 18px; }
.form-item label { display: block; font-size: 14px; color: var(--text-sub); margin-bottom: 8px; }
.form-item label i { color: #e04b4b; font-style: normal; }
.form-item input, .form-item textarea, .form-item select {
  width: 100%; padding: 12px 14px; border: 1px solid var(--border); border-radius: 2px;
  font-size: 15px; font-family: inherit; color: var(--text); background: #fff; transition: border .2s;
}
.form-item input:focus, .form-item textarea:focus { outline: none; border-color: var(--orange); box-shadow: 0 0 0 3px rgba(232,100,12,.1); }
.form-item textarea { resize: vertical; }
.form-tip { text-align: center; color: var(--text-light); font-size: 13.5px; margin-top: 14px; }
.form-tip a { color: var(--orange); font-weight: bold; }
.msg-result {
  display: flex; align-items: center; gap: 12px; padding: 14px 18px; border-radius: 4px;
  font-size: 14.5px; margin-bottom: 22px; border: 1px solid; animation: fadeIn .25s;
}
.msg-result strong { font-size: 16px; flex-shrink: 0; }
.msg-result span { flex: 1; }
.msg-ok { background: #ecf8f1; border-color: #1a9c4b; color: #0d6b32; }
.msg-ok strong { color: #1a9c4b; }
.msg-err { background: #fcecec; border-color: #d23f3f; color: #962020; }
.msg-err strong { color: #d23f3f; }
.btn-spinner { display: inline-block; padding-left: 8px; }
.btn[disabled] { opacity: 0.7; cursor: not-allowed; }

/* ---------- 404 ---------- */
.err-wrap { text-align: center; padding: 110px 0; }
.err-wrap h1 { font-size: 90px; color: var(--orange); font-family: Georgia, serif; }
.err-wrap p { color: var(--text-sub); margin: 12px 0 28px; }

/* ---------- 页脚 ---------- */
.footer { background: var(--ink-dark); color: rgba(255,255,255,.8); font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 36px; padding: 54px 20px 40px; }
.footer-logo strong { display: block; font-size: 22px; color: #fff; letter-spacing: 2px; }
.footer-logo em { font-style: normal; font-size: 12px; color: rgba(255,255,255,.55); }
.footer-desc { margin-top: 14px; font-size: 13.5px; color: rgba(255,255,255,.65); line-height: 1.8; }
.footer-col h4 { color: #fff; font-size: 15.5px; margin-bottom: 16px; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 26px; height: 2px; background: var(--gold); }
.footer-links { display: flex; flex-direction: column; gap: 9px; }
.footer-links a { color: rgba(255,255,255,.7); transition: color .2s; }
.footer-links a:hover { color: var(--gold); }
.footer-contact { margin-bottom: 9px; }
.footer-contact a { color: var(--gold); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); padding: 16px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,.5); }

/* ---------- 悬浮按钮 ---------- */
.float-bar {
  position: fixed; right: 18px; bottom: 90px; z-index: 950;
  display: flex; flex-direction: column; gap: 12px;
}
.float-btn {
  width: 58px; height: 58px; border-radius: var(--radius); border: none; cursor: pointer;
  background: #fff; color: var(--orange); box-shadow: 0 4px 18px rgba(27,33,41,.22);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
  font-size: 24px; transition: all .25s; text-decoration: none; padding: 0;
  font-family: inherit;
}
.float-btn span { font-size: 10.5px; line-height: 1; }
.float-btn:hover { background: var(--orange); color: #fff; transform: translateY(-3px); }
.float-btn .icon { width: 22px; height: 22px; }
#floatWechat { color: #2fae59; }
#floatWechat:hover { background: #2fae59; color: #fff; }
/* 回顶部按钮 - 默认显示，滚动后高亮 */
#floatTop { color: var(--ink); background: #fff; position: relative; }
#floatTop:hover { background: var(--orange); color: #fff; }
#floatTop::before { content: ""; position: absolute; top: 6px; left: 50%; transform: translateX(-50%); width: 22px; height: 3px; background: currentColor; border-radius: 2px; opacity: .35; }
.float-pop {
  position: fixed; right: 86px; bottom: 160px; z-index: 960; background: #fff; border-radius: 6px;
  box-shadow: var(--shadow-hover); padding: 16px 22px; text-align: center;
}
.float-pop::after {
  content: ""; position: absolute; right: -7px; top: 50%; transform: translateY(-50%) rotate(45deg);
  width: 13px; height: 13px; background: #fff;
}
.float-pop strong { display: block; font-size: 13px; color: var(--text-light); margin-bottom: 4px; }
.float-pop a { display: block; font-size: 22px; font-weight: bold; color: var(--orange); }
.float-pop em { font-style: normal; font-size: 12.5px; color: var(--text-sub); display: block; margin-top: 4px; }

/* ---------- 弹窗 ---------- */
.modal { position: fixed; inset: 0; z-index: 1100; display: none; }
.modal.show { display: block; }
.modal-mask { position: absolute; inset: 0; background: rgba(18,22,28,.6); animation: fadeIn .25s; }
.modal-box {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  background: #fff; border-radius: 8px; padding: 34px 44px; text-align: center;
  width: 340px; max-width: calc(100vw - 40px); box-shadow: 0 20px 60px rgba(0,0,0,.35);
  animation: modalIn .3s ease-out;
}
@keyframes modalIn { from { opacity: 0; transform: translate(-50%, calc(-50% - 20px)); } to { opacity: 1; transform: translate(-50%, -50%); } }
.modal-close {
  position: absolute; right: 14px; top: 10px; border: none; background: none; font-size: 28px;
  color: var(--text-light); cursor: pointer; line-height: 1; padding: 0; width: 30px; height: 30px;
}
.modal-close:hover { color: var(--ink); }
.modal-box h3 { font-size: 19px; color: var(--ink); margin-bottom: 16px; }
.modal-qr { width: 200px; height: 200px; margin: 0 auto 14px; border: 1px solid var(--border); border-radius: 6px; padding: 8px; object-fit: contain; }
.modal-wechat-id { font-size: 14.5px; color: var(--text-sub); margin-bottom: 14px; word-break: break-all; }
.modal-wechat-id strong { color: var(--orange); user-select: all; }
.modal-tip { font-size: 12.5px; color: var(--text-light); margin-top: 12px; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; top: 20%; transform: translateX(-50%);
  background: rgba(27,33,41,.92); color: #fff; padding: 12px 26px; border-radius: 4px;
  font-size: 14.5px; z-index: 1100; box-shadow: var(--shadow-hover); animation: fadeIn .3s;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
/* ---------- 构建版本角标（调试用，确认加载的是新版） ---------- */
.build-tag {
  position: fixed; left: 12px; bottom: 12px; z-index: 999;
  background: rgba(27,33,41,.85); color: #fff; padding: 4px 10px;
  border-radius: 4px; font-size: 11px; font-family: Consolas, monospace;
  pointer-events: none; user-select: none;
}

/* ============================================================
   响应式适配
   断点：1200（小笔记本）→ 1080（平板横屏）→ 992（平板竖屏）
        → 768（手机横屏/大屏手机）→ 600 → 480（主流手机）→ 380（小屏）
   原则：移动优先流式布局，容器一律 width:100% + max-width，
        全站不出现任何锁死页面的 min-width。
   ============================================================ */

/* ---------- 小笔记本 ≤1200 ---------- */
@media (max-width: 1200px) {
  .container { padding: 0 18px; }
  .nav { gap: 18px; }
  .nav-list { gap: 2px; }
  .nav-item > a { padding: 26px 12px; font-size: 15.5px; }
  .nav-phone { font-size: 18px; padding-left: 18px; }
}

/* ---------- 平板横屏 ≤1080 ---------- */
@media (max-width: 1080px) {
  .step-grid { grid-template-columns: repeat(3, 1fr); }
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .svc-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .banner-content h2 { font-size: 34px; }
  .banner-item { height: 480px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-wrap { grid-template-columns: 1fr; }
  .detail-wrap { grid-template-columns: 1fr; }
  .news-detail-wrap { grid-template-columns: 1fr; }
  .news-detail-wrap .detail-main { padding: 34px 30px; }
  .detail-side { position: static; flex-direction: row; flex-wrap: wrap; }
  .detail-side .side-box { flex: 1 1 240px; }
  .ci-qr { width: 140px; }
}

/* ---------- 平板竖屏 ≤992 ---------- */
@media (max-width: 992px) {
  .header-inner { height: 68px; }
  .nav-item > a { padding: 22px 10px; font-size: 15px; }
  .nav-phone { font-size: 17px; }
  .banner-item { height: 430px; }
  .banner-content h2 { font-size: 30px; }
  .section { padding: 56px 0; }
  .section-head { margin-bottom: 34px; }
  .section-head h2 { font-size: 26px; }
  .section-head h2::before { left: -40px; width: 34px; }
  .section-head h2::after { right: -40px; width: 34px; }
  .svc-img { height: 170px; }
  .case-img { height: 180px; }
  .news-grid { gap: 20px; }
  .news-card { grid-template-columns: 180px 1fr; gap: 16px; }
  .news-img { height: 120px; }
  .about-wrap { gap: 30px; }
  .stat-item { padding: 26px 8px; }
  .stat-item strong { font-size: 28px; }
  .area-wrap { padding: 32px 30px; }
  .page-banner { padding: 54px 0; }
  .page-banner h1 { font-size: 28px; }
}

/* ---------- 手机横屏 / 大屏手机 ≤768 ---------- */
@media (max-width: 768px) {
  /* 全局：容器收窄、字号跟随屏幕 */
  .container { padding: 0 16px; }
  body { font-size: 15px; line-height: 1.75; }
  html { scroll-padding-top: 70px; }

  /* 顶栏 */
  .topbar { font-size: 12.5px; }
  .topbar-inner { justify-content: center; height: 34px; }
  .topbar-welcome { display: none; }
  .topbar-info { gap: 12px; }

  /* 导航：汉堡 + 下拉面板 */
  .header-inner { height: 58px; gap: 12px; }
  .logo { gap: 9px; }
  .logo-mark { width: 38px; height: 38px; font-size: 20px; border-radius: 4px; }
  .logo-img { height: 38px; }
  .logo-text strong { font-size: 18px; letter-spacing: 1px; }
  .logo-text em { font-size: 10px; letter-spacing: 0.5px; }
  .nav-toggle {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    width: 44px; height: 44px; margin-right: -8px; padding: 0;
  }
  .nav {
    position: fixed; top: 58px; left: 0; right: 0; width: 100%;
    background: #fff; flex-direction: column; gap: 0; align-items: stretch;
    padding: 0 16px 16px; box-shadow: var(--shadow-hover);
    max-height: calc(100vh - 58px); overflow-y: auto; -webkit-overflow-scrolling: touch;
    display: none; z-index: 899;
  }
  .nav.open { display: flex; }
  .nav-list { flex-direction: column; gap: 0; width: 100%; }
  .nav-item > a { padding: 15px 4px; border-bottom: 1px solid var(--border); font-size: 16.5px; }
  .nav-item > a::after { display: none; }
  .caret { margin-left: auto; font-size: 13px; }
  .drop-menu {
    position: static; transform: none; opacity: 1; visibility: visible; box-shadow: none;
    padding: 0 0 6px 14px; min-width: 0; width: 100%; display: none;
  }
  .nav-item.has-drop.open .drop-menu { display: block; transform: none; }
  .drop-menu a { padding: 11px 4px; border-bottom: 1px dashed var(--border); white-space: normal; }
  .nav-phone {
    border-left: none; padding: 14px 4px 4px; font-size: 19px; justify-content: center;
    width: 100%; min-height: 44px;
  }

  /* 轮播 */
  .banner-item { height: 380px; }
  .banner-content { padding: 0 16px; }
  .banner-content h2 { font-size: 24px; letter-spacing: 1px; padding-left: 14px; }
  .banner-content p { font-size: 14.5px; margin: 10px 0 16px; padding-left: 14px; }
  .banner-tags { gap: 7px; margin-bottom: 22px; padding-left: 14px; }
  .banner-tags span { font-size: 12px; padding: 5px 12px; }
  .banner-btns { flex-direction: column; align-items: stretch; gap: 10px; padding-left: 14px; padding-right: 16px; }
  .banner-btns .btn { width: 100%; padding: 12px 18px; font-size: 15px; }
  .banner-arrow { display: none; }
  .banner-dots { bottom: 14px; gap: 8px; }
  .banner-dots button { width: 24px; height: 4px; }

  /* 板块 */
  .section { padding: 40px 0; }
  .section-head { margin-bottom: 28px; }
  .section-head h2 { font-size: 22px; padding: 0; }
  .section-head h2 span { font-size: 11px; letter-spacing: 3px; }
  .section-head h2::before, .section-head h2::after { display: none; }
  .section-head p { font-size: 13.5px; margin-top: 8px; padding: 0 6px; }

  /* 卡片：全部单列，图片改等比缩放 */
  .svc-grid, .adv-grid, .case-grid, .mat-grid { grid-template-columns: 1fr; gap: 18px; }
  .step-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .svc-img, .case-img { height: auto; aspect-ratio: 16 / 10; }
  .svc-img img, .case-img img { width: 100%; height: 100%; }
  .svc-body { padding: 18px; }
  .svc-body h3 { font-size: 18px; }
  .adv-item { padding: 22px 18px; gap: 14px; }
  .adv-icon { width: 48px; height: 48px; font-size: 24px; }
  .adv-item h3 { font-size: 16.5px; }
  .adv-item p { font-size: 13.5px; }
  .mat-card { padding: 22px 18px; }
  .mat-card h3 { font-size: 17px; margin-bottom: 12px; }
  .mat-tags { gap: 8px; }
  .mat-tags span { font-size: 13px; padding: 5px 12px; }
  .step-item { padding: 20px 10px 16px; }
  .step-num { width: 38px; height: 38px; font-size: 15px; margin-bottom: 10px; }
  .step-item h3 { font-size: 15px; }
  .step-item p { font-size: 12.5px; }
  .case-body { padding: 16px 18px; }
  .case-body h3 { font-size: 16px; }

  /* 新闻列表 */
  .news-grid { grid-template-columns: 1fr; gap: 18px; }
  .news-card { grid-template-columns: 1fr; gap: 12px; padding: 12px; }
  .news-img { height: auto; aspect-ratio: 16 / 9; }
  .news-body h3 { font-size: 16.5px; -webkit-line-clamp: 2; }
  .news-body p { font-size: 13.5px; -webkit-line-clamp: 3; }
  .news-info { gap: 12px; font-size: 12.5px; flex-wrap: wrap; margin-bottom: 18px; }
  .pager { flex-wrap: wrap; gap: 8px; margin-top: 28px; }
  .pg { min-width: 44px; height: 44px; }

  /* 关于我们 */
  .about-wrap { grid-template-columns: 1fr; gap: 24px; }
  .about-stats { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat-item { padding: 20px 8px; }
  .stat-item strong { font-size: 26px; }
  .stat-item span { font-size: 13px; }

  /* 详情页 */
  .detail-wrap, .news-detail-wrap { grid-template-columns: 1fr; gap: 20px; }
  .detail-side { position: static; flex-direction: column; flex-wrap: nowrap; gap: 16px; }
  .detail-side .side-box { flex: 1 1 auto; width: 100%; }
  .side-box { padding: 18px; }
  .side-link { padding: 12px 12px; font-size: 14.5px; }
  .side-phone { font-size: 20px; }
  .detail-main { padding: 22px 16px; }
  .news-detail-wrap .detail-main { padding: 22px 16px; }
  .news-detail-wrap .rich-content { font-size: 15.5px; line-height: 1.85; }
  .detail-title { font-size: 20px; padding-bottom: 12px; margin-bottom: 16px; }
  .detail-cover { margin-bottom: 18px; }

  /* 富文本：表格横向滚动，绝不撑破页面 */
  .rich-content { font-size: 15px; }
  .rich-content h2 { font-size: 19px; margin: 24px 0 12px; }
  .rich-content h3 { font-size: 16.5px; margin: 18px 0 8px; }
  .rich-content table { display: block; width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .rich-content th, .rich-content td { font-size: 13.5px; padding: 8px 10px; white-space: nowrap; }

  /* 联系我们 + 表单 */
  .contact-wrap { grid-template-columns: 1fr; gap: 22px; }
  .contact-t { font-size: 19px; margin-bottom: 16px; }
  .ci-card { padding: 16px 18px; }
  .ci-card p { font-size: 16px; }
  .ci-qr { width: 150px; }
  .contact-form-wrap { padding: 22px 16px; }
  .contact-sub { margin: -8px 0 18px; font-size: 13px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .form-item { margin-bottom: 16px; }
  .form-item label { font-size: 13.5px; margin-bottom: 6px; }
  /* 移动端字号 ≥16px，避免 iOS 聚焦时自动放大页面 */
  .form-item input, .form-item textarea, .form-item select { font-size: 16px; padding: 12px; }
  .msg-result { flex-wrap: wrap; padding: 12px 14px; font-size: 13.5px; }

  /* 覆盖区域 / CTA / 内页横幅 / 面包屑 */
  .area-wrap { padding: 22px 16px; }
  .area-tags-wrap { gap: 8px; margin-bottom: 14px; }
  .area-tag { padding: 6px 14px; font-size: 13.5px; }
  .area-text { font-size: 13.5px; }
  .cta-strip { padding: 36px 0; }
  .cta-inner { flex-direction: column; text-align: center; gap: 20px; }
  .cta-text h2 { font-size: 20px; }
  .cta-text p { font-size: 13.5px; }
  .cta-btns { justify-content: center; width: 100%; }
  .cta-btns .btn { flex: 1 1 100%; padding: 13px 16px; font-size: 15px; }
  .page-banner { padding: 38px 0; }
  .page-banner h1 { font-size: 23px; letter-spacing: 2px; }
  .page-banner p { font-size: 12px; letter-spacing: 3px; }
  .breadcrumb { font-size: 12.5px; }
  .breadcrumb .container { height: auto; padding: 10px 16px; gap: 6px; }

  /* 按钮触控区 ≥44px */
  .btn { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; padding: 12px 22px; }
  .btn-block { display: flex; width: 100%; }
  .btn-lg { padding: 14px 26px; font-size: 15.5px; }

  /* 页脚 */
  .footer { font-size: 13.5px; }
  .footer-grid { grid-template-columns: 1fr; gap: 22px; padding: 34px 16px 26px; }
  .footer-logo strong { font-size: 20px; }
  .footer-desc { font-size: 13px; }
  .footer-col h4 { font-size: 15px; margin-bottom: 12px; }
  .footer-links { gap: 8px; }
  .footer-bottom { padding: 14px 16px; font-size: 12.5px; line-height: 1.7; }

  /* 悬浮按钮 */
  .float-bar { right: 10px; bottom: 74px; gap: 10px; }
  .float-btn { width: 48px; height: 48px; font-size: 20px; }
  .float-btn .icon { width: 19px; height: 19px; }
  .float-btn span { font-size: 9.5px; }
  .float-pop { right: 68px; bottom: auto; top: 50%; transform: translateY(-50%); padding: 14px 18px; }
  .float-pop::after { display: none; }
  .float-pop a { font-size: 20px; }
  .build-tag { font-size: 10px; left: 8px; bottom: 8px; }

  /* 弹窗 */
  .modal-box { width: 100%; max-width: calc(100vw - 32px); padding: 26px 18px 22px; }
  .modal-box h3 { font-size: 18px; margin-bottom: 12px; }
  .modal-qr { width: 100%; max-width: 200px; height: auto; aspect-ratio: 1 / 1; }
  .modal-close { width: 40px; height: 40px; font-size: 26px; }
  .btn-copy { width: 100%; }

  /* 404 */
  .err-wrap { padding: 70px 0; }
  .err-wrap h1 { font-size: 64px; }
  .err-wrap p { font-size: 14px; }

  /* Toast */
  .toast { max-width: calc(100vw - 40px); text-align: center; padding: 11px 18px; font-size: 14px; }
}

/* ---------- 主流手机 ≤600 ---------- */
@media (max-width: 600px) {
  .container { padding: 0 14px; }
  .banner-item { height: 340px; }
  .banner-content h2 { font-size: 21px; }
  .banner-content p { font-size: 13.5px; }
  .banner-tags span { font-size: 11.5px; padding: 4px 10px; }
  .section { padding: 34px 0; }
  .section-head h2 { font-size: 20px; }
  .logo-text strong { font-size: 17px; }
  .logo-text em { display: none; }
  .news-body h3 { font-size: 16px; }
  .stat-item strong { font-size: 23px; }
  .detail-title { font-size: 19px; }
  .rich-content h2 { font-size: 18px; }
  .err-wrap h1 { font-size: 56px; }
}

/* ---------- 小屏手机 ≤480 ---------- */
@media (max-width: 480px) {
  .container { padding: 0 12px; }
  body { font-size: 14.5px; }
  .topbar-info { gap: 0; }
  .topbar-addr { display: none; }
  .topbar-inner { justify-content: center; }
  .logo-text strong { font-size: 16px; letter-spacing: 0; }
  .header-inner { height: 54px; }
  .nav { top: 54px; max-height: calc(100vh - 54px); }
  .banner-item { height: 300px; }
  .banner-content { padding: 0 14px; }
  .banner-content h2 { font-size: 19px; border-left-width: 3px; padding-left: 10px; }
  .banner-content p { font-size: 13px; padding-left: 13px; margin: 8px 0 12px; }
  .banner-tags { padding-left: 13px; margin-bottom: 16px; }
  .banner-btns { padding-left: 13px; }
  .banner-btns .btn { font-size: 14px; padding: 11px 14px; }
  .section { padding: 30px 0; }
  .section-head h2 { font-size: 19px; }
  .section-head p { font-size: 13px; }
  .step-grid { gap: 10px; }
  .step-item { padding: 16px 8px 14px; }
  .step-num { width: 34px; height: 34px; font-size: 14px; margin-bottom: 8px; }
  .step-item h3 { font-size: 14px; margin-bottom: 4px; }
  .step-item p { font-size: 12px; line-height: 1.6; }
  .adv-item { padding: 18px 14px; gap: 12px; }
  .adv-icon { width: 42px; height: 42px; font-size: 21px; }
  .mat-card { padding: 18px 14px; }
  .svc-body { padding: 16px; }
  .case-body { padding: 14px 16px; }
  .news-card { padding: 10px; }
  .about-stats { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .stat-item { padding: 16px 6px; }
  .stat-item strong { font-size: 21px; }
  .stat-item span { font-size: 12px; }
  .detail-main, .news-detail-wrap .detail-main { padding: 18px 14px; }
  .detail-title { font-size: 18px; }
  .news-detail-wrap .rich-content { font-size: 15px; }
  .contact-form-wrap { padding: 18px 14px; }
  .ci-card { padding: 14px 16px; }
  .ci-card p { font-size: 15.5px; }
  .ci-qr { width: 130px; }
  .area-wrap { padding: 18px 14px; }
  .area-tag { padding: 5px 12px; font-size: 13px; }
  .cta-text h2 { font-size: 18px; }
  .cta-btns { flex-direction: column; }
  .page-banner { padding: 32px 0; }
  .page-banner h1 { font-size: 21px; letter-spacing: 1px; }
  .side-box { padding: 16px; }
  .side-link { font-size: 14px; padding: 11px 10px; }
  .float-bar { right: 8px; bottom: 68px; }
  .float-btn { width: 56px; height: 44px; font-size: 18px; }
  .float-btn span { font-size: 9px; }
  .float-pop { right: 60px; padding: 12px 14px; }
  .float-pop a { font-size: 18px; }
  .modal-box { padding: 22px 14px 18px; }
  .err-wrap { padding: 56px 0; }
  .err-wrap h1 { font-size: 46px; }
  .footer-grid { gap: 20px; padding: 28px 12px 22px; }
}

/* ---------- 超小屏 ≤380 ---------- */
@media (max-width: 380px) {
  .container { padding: 0 10px; }
  .logo-text strong { font-size: 15px; }
  .logo-mark { width: 34px; height: 34px; font-size: 18px; }
  .banner-item { height: 270px; }
  .banner-content h2 { font-size: 17px; }
  .section-head h2 { font-size: 18px; }
  .btn { padding: 12px 16px; font-size: 14px; letter-spacing: 0; }
  .svc-body h3, .case-body h3 { font-size: 16px; }
  .nav-item > a { font-size: 15.5px; }
}

/* ---------- 手机横屏（高度很小时） ---------- */
@media (max-height: 480px) and (orientation: landscape) {
  .nav { max-height: calc(100vh - 50px); }
  .banner-item { height: 260px; }
  .banner-content h2 { font-size: 19px; }
  .banner-tags { display: none; }
  .section { padding: 28px 0; }
  .float-bar { bottom: 12px; gap: 8px; }
  .float-btn { width: 42px; height: 42px; }
}

/* ---------- 触屏设备：去掉依赖 hover 的位移效果 ---------- */
@media (hover: none) {
  .svc-card:hover, .case-card:hover, .adv-item:hover, .news-card:hover, .stat-item:hover { transform: none; }
  .svc-card:hover .svc-img img, .case-card:hover .case-img img, .news-card:hover .news-img img { transform: none; }
  .nav-item.has-drop:hover .drop-menu { opacity: 1; visibility: visible; }
}

/* ---------- 大屏：内容与导航适度放大 ---------- */
@media (min-width: 1440px) {
  .container { max-width: 1280px; }
  .banner-content h2 { font-size: 46px; }
  .section-head h2 { font-size: 32px; }
}

/* ---------- 减少动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}