/* ============================================================
   新恒盛回收 前台样式 —— 现代工业模板风（深藏蓝 + 活力橙）
   排版参照：首屏大图 → 图文简介 → 数据带 → 业务卡片 → 优势 → 新闻
   ============================================================ */
:root {
  /* 主色：深藏蓝 */
  --blue:        #16467b;
  --blue-light:  #1f6bb4;
  --blue-dark:   #0f3358;
  --blue-grad:   linear-gradient(135deg, #16467b 0%, #1f6bb4 100%);

  /* 强调色：活力橙 */
  --orange:      #f2802e;
  --orange-dark: #e06a12;
  --orange-lt:   #ff9d52;
  --gold:        #f5b04c;

  /* 中性 */
  --ink:        #16283a;
  --text:       #3d4a5a;
  --text-sub:   #6b7a8c;
  --text-light: #96a4b4;
  --gray-bg:    #f5f7fa;
  --gray-bg-2:  #eef2f6;
  --border:     #e1e7ee;
  --white:      #ffffff;

  --radius-sm: 8px;
  --radius:    12px;
  --radius-lg: 16px;

  --shadow:       0 4px 20px rgba(22, 70, 123, 0.08);
  --shadow-hover: 0 12px 32px rgba(22, 70, 123, 0.18);
  --shadow-card:  0 6px 24px rgba(22, 40, 58, 0.08);
  --shadow-orange:0 6px 20px rgba(242, 128, 46, 0.3);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
/* 全局防溢出：页面永不出现横向滚动条（clip 不影响 sticky 导航），长词自动换行 */
html { overflow-x: clip; }
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: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-wrap: break-word;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
[hidden] { display: none !important; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.icon { width: 1em; height: 1em; vertical-align: -0.12em; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block; padding: 12px 30px; border-radius: var(--radius-sm);
  font-size: 15px; text-align: center; cursor: pointer; border: 1px solid transparent;
  transition: all .3s cubic-bezier(.4,0,.2,1); line-height: 1.5; letter-spacing: 1px;
  font-weight: 600;
}
.btn-main { background: var(--orange); color: #fff; box-shadow: var(--shadow-orange); }
.btn-main:hover { background: var(--orange-dark); transform: translateY(-2px); box-shadow: 0 10px 26px rgba(242, 128, 46, 0.4); }
.btn-light { background: #fff; color: var(--blue); border-color: var(--blue); }
.btn-light:hover { background: var(--blue); color: #fff; transform: translateY(-2px); }
.btn-ghost { border-color: rgba(255,255,255,.6); color: #fff; background: rgba(255,255,255,.12); backdrop-filter: blur(8px); }
.btn-ghost:hover { background: rgba(255,255,255,.28); border-color: #fff; }
.btn-lg { padding: 16px 40px; font-size: 16px; }
.btn-block { display: block; width: 100%; }
.btn-copy { background: var(--blue-grad); color: #fff; }

/* ---------- 顶部条 ---------- */
.topbar { background: var(--blue-dark); color: rgba(255,255,255,.9); font-size: 13px; }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; height: 38px; }
.topbar-info { display: flex; gap: 18px; }
.topbar-tel { color: var(--gold); font-weight: bold; letter-spacing: 1px; }
.topbar-addr { display: inline; }

/* ---------- 头部导航 ---------- */
.header { background: rgba(255,255,255,.95); backdrop-filter: blur(12px); box-shadow: 0 2px 18px rgba(22,40,58,.08); position: sticky; top: 0; z-index: 900; border-bottom: 3px solid var(--orange); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 80px; gap: 24px; }
.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 1; min-width: 0; max-width: 44%; }
.logo-mark {
  width: 52px; height: 52px; border-radius: var(--radius-sm); background: var(--blue-grad);
  color: #fff; font-size: 28px; font-weight: bold; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 18px rgba(22, 70, 123, 0.35);
  position: relative; overflow: hidden; flex-shrink: 0;
}
.logo-mark::before { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, transparent 0%, rgba(255,255,255,.18) 50%, transparent 100%); }
.logo-mark::after { content: ""; position: absolute; right: 3px; bottom: 3px; width: 12px; height: 12px; background: var(--orange); border-radius: 2px; }
.logo-img { height: 48px; width: auto; }
.logo-text { display: flex; flex-direction: column; line-height: 1.3; min-width: 0; max-width: 100%; }
.logo-text strong { font-size: 24px; color: var(--ink); letter-spacing: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.logo-text em { font-style: normal; font-size: 12px; color: var(--orange); letter-spacing: 1px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; }
.nav { display: flex; align-items: center; gap: 28px; flex-shrink: 0; }
.nav-list { display: flex; gap: 4px; }
.nav-item > a {
  display: flex; align-items: center; gap: 4px; padding: 26px 16px; font-size: 16px;
  color: var(--text); position: relative; transition: color .2s; font-weight: 600; white-space: nowrap;
}
.nav-item > a::after {
  content: ""; position: absolute; left: 50%; bottom: 16px; transform: translateX(-50%);
  width: 0; height: 3px; background: var(--orange); border-radius: 2px; transition: width .3s;
}
.nav-item > a:hover, .nav-item.active > a { color: var(--blue); }
.nav-item > a:hover::after, .nav-item.active > a::after { width: 30px; }
.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-sm); box-shadow: var(--shadow-hover);
  min-width: 200px; padding: 8px 0; opacity: 0; visibility: hidden; transition: all .3s;
  border: 1px solid var(--border); border-top: 3px solid var(--orange);
}
.nav-item.has-drop:hover .drop-menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.drop-menu a { display: block; padding: 12px 24px; font-size: 14px; white-space: nowrap; color: var(--text-sub); transition: all .2s; }
.drop-menu a:hover { background: var(--gray-bg); color: var(--blue); padding-left: 28px; }
.nav-phone {
  display: inline-flex; align-items: center; gap: 8px; color: var(--orange); font-weight: bold;
  font-size: 19px; border-left: 2px solid var(--border); padding-left: 24px;
  letter-spacing: 1px;
}
.nav-phone .icon { font-size: 22px; }
.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); background: var(--orange); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); background: var(--orange); }

/* ---------- 轮播（首屏大图） ---------- */
.banner { position: relative; overflow: hidden; }
.banner-item {
  position: relative; height: 580px; 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(100deg, rgba(15,51,88,.9) 0%, rgba(22,70,123,.6) 55%, rgba(242,128,46,.25) 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: 46px; letter-spacing: 2px; text-shadow: 0 2px 16px rgba(0,0,0,.4); padding-left: 24px; position: relative; font-weight: 700; }
.banner-content h2::before { content: ""; position: absolute; left: 0; top: 10px; bottom: 10px; width: 6px; background: var(--orange); border-radius: 3px; box-shadow: 0 0 18px rgba(242,128,46,.7); }
.banner-content p { font-size: 18px; margin: 16px 0 22px; color: rgba(255,255,255,.92); padding-left: 24px; }
.banner-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; padding-left: 24px; }
.banner-tags span {
  padding: 7px 18px; border: 1px solid rgba(255,255,255,.4); border-radius: 20px;
  font-size: 14px; color: #fff; background: rgba(255,255,255,.1); backdrop-filter: blur(8px);
}
.banner-btns { display: flex; gap: 16px; padding-left: 24px; }
.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); width: 48px; }
.banner-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
  width: 48px; height: 48px; border-radius: 50%; border: 1px solid rgba(255,255,255,.3);
  background: rgba(255,255,255,.1); backdrop-filter: blur(8px); color: #fff; font-size: 24px; cursor: pointer; transition: all .3s;
}
.banner-arrow:hover { background: var(--orange); border-color: transparent; transform: translateY(-50%) scale(1.1); }
.banner-arrow.prev { left: 20px; }
.banner-arrow.next { right: 20px; }

/* ---------- 走进新恒盛回收（图文简介） ---------- */
.intro-wrap { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
.intro-title { font-size: 32px; color: var(--ink); font-weight: 700; position: relative; padding-bottom: 16px; margin-bottom: 22px; }
.intro-title::after { content: ""; position: absolute; left: 0; bottom: 0; width: 52px; height: 4px; background: linear-gradient(90deg, var(--blue), var(--orange)); border-radius: 2px; }
.intro-title span { display: block; font-size: 11px; color: var(--orange); letter-spacing: 5px; margin-top: 10px; font-weight: 600; text-transform: uppercase; }
.intro-text p { color: var(--text-sub); margin-bottom: 14px; text-align: justify; }
.intro-text p strong { color: var(--blue); }
.intro-btns { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 24px; }
.intro-img img { border-radius: var(--radius-lg); box-shadow: var(--shadow-hover); width: 100%; }

/* ---------- 数据带 ---------- */
.stats-band { background: linear-gradient(120deg, #0f3358 0%, #16467b 60%, #1f6bb4 100%); color: #fff; padding: 44px 0; position: relative; overflow: hidden; }
.stats-band::before { content: ""; position: absolute; top: -60%; right: -8%; width: 45%; height: 220%; background: radial-gradient(circle, rgba(242,128,46,.22) 0%, transparent 62%); pointer-events: none; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; position: relative; z-index: 1; }
.stat-cell { text-align: center; padding: 10px 6px; position: relative; }
.stat-cell + .stat-cell::before { content: ""; position: absolute; left: 0; top: 18%; bottom: 18%; width: 1px; background: rgba(255,255,255,.18); }
.stat-cell strong { display: block; font-size: 42px; font-family: Georgia, serif; font-weight: 700; color: var(--orange-lt); line-height: 1.15; text-shadow: 0 2px 12px rgba(0,0,0,.25); }
.stat-cell span { display: block; margin-top: 8px; font-size: 14.5px; color: rgba(255,255,255,.85); letter-spacing: 2px; }

/* ---------- 通用板块 ---------- */
.section { padding: 80px 0; position: relative; }
.section-gray { background: var(--gray-bg); position: relative; }
.section-gray::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 15% 0%, rgba(22,70,123,.045) 0%, transparent 45%), radial-gradient(circle at 85% 100%, rgba(242,128,46,.04) 0%, transparent 45%); pointer-events: none; }
.section-gray > .container { position: relative; z-index: 1; }
.section-head { text-align: center; margin-bottom: 52px; position: relative; z-index: 1; }
.section-head h2 { font-size: 32px; color: var(--ink); font-weight: 700; }
.section-head h2::after { content: ""; display: block; width: 48px; height: 4px; border-radius: 2px; background: linear-gradient(90deg, var(--blue), var(--orange)); margin: 14px auto 0; }
.section-head h2 span { display: block; font-size: 11px; color: var(--orange); letter-spacing: 6px; margin-top: 10px; font-weight: 600; text-transform: uppercase; }
.section-head p { color: var(--text-sub); margin-top: 14px; font-size: 15px; letter-spacing: 1px; }

/* ---------- 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-card);
  transition: all .4s cubic-bezier(.4,0,.2,1); display: flex; flex-direction: column;
  border: 1px solid var(--border); position: relative;
}
.svc-card::before {
  content: ""; position: absolute; inset: 0; border-radius: var(--radius); padding: 2px;
  background: linear-gradient(135deg, var(--blue) 0%, var(--orange) 100%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0); -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity .3s;
}
.svc-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-hover); }
.svc-card:hover::before { opacity: 1; }
.svc-img { height: 190px; overflow: hidden; position: relative; }
.svc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.svc-card:hover .svc-img img { transform: scale(1.08); }
.svc-img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(22,40,58,.18) 100%); }
.svc-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.svc-body h3 { font-size: 18px; color: var(--ink); margin-bottom: 10px; font-weight: 700; }
.svc-body p { font-size: 14px; color: var(--text-sub); flex: 1; line-height: 1.65; }
.svc-more { display: inline-block; margin-top: 16px; color: var(--orange); font-size: 14px; font-weight: bold; transition: all .3s; }
.svc-card:hover .svc-more { letter-spacing: 2px; color: var(--orange-dark); }

/* ---------- 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-card);
  display: flex; gap: 18px; align-items: flex-start; transition: all .4s cubic-bezier(.4,0,.2,1);
  border: 1px solid var(--border);
}
.adv-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.adv-icon {
  width: 54px; height: 54px; flex-shrink: 0; border-radius: var(--radius-sm); background: var(--blue-grad);
  color: #fff; display: flex; align-items: center; justify-content: center; font-size: 25px;
  transition: all .3s; box-shadow: 0 6px 16px rgba(22, 70, 123, 0.28);
}
.adv-item:hover .adv-icon { background: var(--orange); transform: scale(1.05) rotate(-3deg); box-shadow: var(--shadow-orange); }
.adv-item h3 { font-size: 17px; color: var(--ink); margin-bottom: 8px; font-weight: 700; }
.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: 26px 30px; box-shadow: var(--shadow-card); border: 1px solid var(--border); position: relative; overflow: hidden; transition: all .3s; }
.mat-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--blue), var(--orange)); }
.mat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.mat-card h3 { font-size: 18px; color: var(--ink); margin-bottom: 16px; display: flex; align-items: center; gap: 10px; font-weight: 700; }
.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: 6px 16px; background: var(--gray-bg); border-radius: 18px; font-size: 13.5px;
  color: var(--text-sub); border: 1px solid var(--border); transition: all .25s;
}
.mat-tags span:hover { background: var(--blue-grad); color: #fff; border-color: transparent; transform: translateY(-2px); box-shadow: 0 4px 12px rgba(22,70,123,.25); }

/* ---------- 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-card); position: relative; border: 1px solid var(--border); transition: all .3s; }
.step-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.step-num {
  width: 50px; height: 50px; margin: 0 auto 14px; border-radius: 50%;
  background: var(--blue-grad); color: #fff; font-weight: bold; font-size: 17px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 18px rgba(22, 70, 123, 0.3); position: relative;
}
.step-item:hover .step-num { background: var(--orange); box-shadow: var(--shadow-orange); }
.step-item h3 { font-size: 15.5px; color: var(--ink); margin-bottom: 8px; font-weight: 700; }
.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-card); transition: all .4s cubic-bezier(.4,0,.2,1); border: 1px solid var(--border); }
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.case-img { height: 210px; overflow: hidden; position: relative; }
.case-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.case-card:hover .case-img img { transform: scale(1.08); }
.case-img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(22,40,58,.22) 100%); }
.case-body { padding: 20px 24px; position: relative; }
.case-body::before { content: ""; position: absolute; top: 0; left: 24px; right: 24px; height: 2px; background: linear-gradient(90deg, var(--blue), var(--orange)); }
.case-body h3 { font-size: 16.5px; color: var(--ink); margin-bottom: 8px; font-weight: 700; }
.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-card); padding: 40px 44px; border: 1px solid var(--border); }
.area-tags-wrap { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; }
.area-tag {
  padding: 8px 22px; background: rgba(22, 70, 123, 0.07); color: var(--blue); border-radius: 20px;
  font-size: 14.5px; font-weight: 600; border: 1px solid transparent; transition: all .25s;
}
.area-tag:hover { background: var(--blue-grad); color: #fff; transform: translateY(-2px); }
.area-text { color: var(--text-sub); font-size: 14.5px; line-height: 1.85; }

/* ---------- CTA ---------- */
.cta-strip { background: linear-gradient(120deg, #0f3358 0%, #16467b 55%, #1f6bb4 100%); color: #fff; padding: 58px 0; position: relative; overflow: hidden; }
.cta-strip::before { content: ""; position: absolute; top: -50%; right: -10%; width: 60%; height: 200%; background: radial-gradient(circle, rgba(242,128,46,.28) 0%, transparent 60%); pointer-events: none; }
.cta-inner { display: flex; justify-content: space-between; align-items: center; gap: 30px; flex-wrap: wrap; position: relative; z-index: 1; }
.cta-text h2 { font-size: 28px; margin-bottom: 10px; font-weight: 700; }
.cta-text h2 em { color: var(--orange-lt); font-style: normal; }
.cta-text p { color: rgba(255,255,255,.85); }
.cta-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.cta-btns .btn-light { border-color: var(--orange); background: var(--orange); color: #fff; }
.cta-btns .btn-light:hover { background: var(--orange-dark); border-color: var(--orange-dark); }

/* ---------- 首页新闻更多按钮 ---------- */
.news-more-wrap { text-align: center; margin-top: 36px; position: relative; z-index: 1; }

/* ---------- 内页横幅 / 面包屑 ---------- */
.page-banner {
  background: linear-gradient(120deg, #0f3358 0%, #16467b 55%, #1f6bb4 100%);
  color: #fff; padding: 72px 0; text-align: center; position: relative; overflow: hidden;
}
.page-banner::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 70% 50%, rgba(242,128,46,.28) 0%, transparent 50%); pointer-events: none; }
.page-banner h1 { font-size: 34px; letter-spacing: 3px; font-weight: 700; position: relative; }
.page-banner p { color: rgba(255,255,255,.75); margin-top: 12px; font-size: 13px; letter-spacing: 6px; text-transform: uppercase; position: relative; }
.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: 46px; 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-lg); box-shadow: var(--shadow-hover); width: 100%; }
.about-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.stat-item { background: #fff; border-radius: var(--radius); text-align: center; padding: 34px 10px; transition: all .3s; box-shadow: var(--shadow-card); border: 1px solid var(--border); position: relative; overflow: hidden; }
.stat-item::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--blue), var(--orange)); }
.stat-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.stat-item strong { display: block; font-size: 36px; color: var(--blue); font-family: Georgia, serif; font-weight: 700; }
.stat-item span { font-size: 14px; color: var(--text-sub); }

/* ---------- 详情页 ---------- */
.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; }
.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-card); padding: 24px; border: 1px solid var(--border); }
.side-title { font-size: 17px; color: var(--ink); padding-left: 12px; margin-bottom: 16px; position: relative; font-weight: 700; }
.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: var(--radius-sm); font-size: 14.5px; color: var(--text-sub); margin-bottom: 4px; transition: all .2s; }
.side-link:hover { background: var(--gray-bg); color: var(--blue); padding-left: 18px; }
.side-link.active { background: var(--blue-grad); color: #fff; }
.side-contact { background: linear-gradient(150deg, #0f3358, #1f6bb4); color: #fff; border: none; }
.side-contact .side-title { color: #fff; }
.side-contact .side-title::before { background: var(--orange); }
.side-phone { display: block; font-size: 22px; font-weight: bold; color: var(--orange-lt); margin-bottom: 6px; letter-spacing: 1px; }
.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 { box-shadow: var(--shadow-orange); }
.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(--blue); }
.side-empty { font-size: 13px; color: var(--text-light); }
.detail-main { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-card); padding: 38px 42px; min-width: 0; border: 1px solid var(--border); }
.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(--blue); margin: 22px 0 10px; font-weight: 700; }
.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: 50%; background: var(--orange); }
.rich-content ol { counter-reset: ol; }
.rich-content ol li::before { content: counter(ol); counter-increment: ol; width: 22px; height: 22px; border-radius: 50%; background: var(--blue-grad); color: #fff; font-size: 12px; text-align: center; line-height: 22px; top: 3px; font-weight: 600; }
.rich-content strong { color: var(--ink); }
.rich-content img { border-radius: var(--radius-sm); 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(--gray-bg); color: var(--ink); }

/* ---------- 新闻 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.news-card {
  display: grid; grid-template-columns: 220px 1fr; gap: 20px; background: #fff; border-radius: var(--radius);
  box-shadow: var(--shadow-card); padding: 18px; transition: all .3s; border: 1px solid var(--border);
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.news-img { border-radius: var(--radius-sm); 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: rgba(22,70,123,.08); color: var(--blue); padding: 3px 12px; border-radius: 12px; font-weight: 600; }
.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(--blue); }
.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: 40px; height: 40px; padding: 0 14px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: #fff; color: var(--text-sub); font-size: 14px; transition: all .2s; }
.pg:hover { border-color: var(--blue); color: var(--blue); transform: translateY(-2px); }
.pg.active { background: var(--blue-grad); border-color: transparent; color: #fff; box-shadow: 0 4px 12px rgba(22,70,123,.25); }

/* ---------- 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; font-weight: 700; }
.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-card); padding: 20px 24px; margin-bottom: 14px; border: 1px solid var(--border); }
.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(--blue); }
.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: var(--radius-sm); 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-card); padding: 36px 38px; border: 1px solid var(--border); }
.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: var(--radius-sm);
  font-size: 15px; font-family: inherit; color: var(--text); background: #fff; transition: all .2s;
}
.form-item input:focus, .form-item textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(31, 107, 180, 0.12); }
.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: var(--radius-sm);
  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(--blue); font-family: Georgia, serif; }
.err-wrap p { color: var(--text-sub); margin: 12px 0 28px; }

/* ---------- 页脚 ---------- */
.footer { background: linear-gradient(180deg, #0f3358 0%, #16283a 100%); color: rgba(255,255,255,.8); font-size: 14px; position: relative; overflow: hidden; }
.footer::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--blue-light), var(--orange)); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 36px; padding: 58px 20px 40px; position: relative; }
.footer-logo strong { display: block; font-size: 22px; color: #fff; letter-spacing: 2px; }
.footer-logo em { font-style: normal; font-size: 12px; color: var(--orange-lt); }
.footer-desc { margin-top: 14px; font-size: 13.5px; color: rgba(255,255,255,.65); line-height: 1.85; }
.footer-col h4 { color: #fff; font-size: 15.5px; margin-bottom: 18px; position: relative; padding-bottom: 10px; font-weight: 600; }
.footer-col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 30px; height: 2px; background: var(--orange); border-radius: 1px; }
.footer-links { display: flex; flex-direction: column; gap: 9px; }
.footer-links a { color: rgba(255,255,255,.7); transition: all .2s; padding-left: 0; }
.footer-links a:hover { color: #fff; padding-left: 6px; }
.footer-contact { margin-bottom: 9px; color: rgba(255,255,255,.75); }
.footer-contact a { color: var(--gold); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); 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: 60px; height: 60px; border-radius: 14px; border: none; cursor: pointer;
  background: #fff; color: var(--blue); box-shadow: 0 6px 20px rgba(22, 70, 123, 0.18);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
  font-size: 24px; transition: all .3s cubic-bezier(.4,0,.2,1); text-decoration: none; padding: 0;
  font-family: inherit;
}
.float-btn span { font-size: 10.5px; line-height: 1; }
.float-btn:hover { background: var(--blue-grad); color: #fff; transform: translateY(-4px); box-shadow: 0 10px 28px rgba(22, 70, 123, 0.4); }
.float-btn .icon { width: 22px; height: 22px; }
#floatWechat { color: #2fae59; }
#floatWechat:hover { background: #2fae59; color: #fff; box-shadow: 0 10px 28px rgba(47, 174, 89, 0.4); }
#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: 92px; bottom: 160px; z-index: 960; background: #fff; border-radius: var(--radius-sm); 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(--blue); }
.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(15, 51, 88, 0.6); backdrop-filter: blur(4px); animation: fadeIn .25s; }
.modal-box {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  background: #fff; border-radius: var(--radius); 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; border-top: 4px solid var(--orange);
}
@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; font-weight: 700; }
.modal-qr { width: 200px; height: 200px; margin: 0 auto 14px; border: 1px solid var(--border); border-radius: var(--radius-sm); 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(--blue); 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(22, 40, 58, 0.92); backdrop-filter: blur(8px); color: #fff; padding: 12px 26px; border-radius: var(--radius-sm);
  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） ---------- */
.build-tag {
  position: fixed; left: 12px; bottom: 12px; z-index: 999;
  background: var(--blue-grad); color: #fff; padding: 4px 10px;
  border-radius: 12px; font-size: 11px; font-family: Consolas, monospace;
  pointer-events: none; user-select: none;
}

/* ============================================================
   响应式适配 —— PC / 平板 / 手机全设备覆盖
   断点：≤1080 平板（导航折叠为汉堡菜单）
        ≤768  手机
        ≤480  小屏手机
   ============================================================ */
@media (max-width: 1080px) {
  /* ---- 平板：栅格降列 ---- */
  .svc-grid { grid-template-columns: repeat(3, 1fr); }
  .step-grid { grid-template-columns: repeat(3, 1fr); }
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); padding: 46px 20px 32px; }
  .contact-wrap { grid-template-columns: 1fr; }
  .detail-wrap { grid-template-columns: 1fr; }
  .news-detail-wrap { grid-template-columns: 1fr; }
  .detail-side { position: static; flex-direction: row; flex-wrap: wrap; }
  .detail-side .side-box { flex: 1; min-width: 240px; }
  .intro-wrap { grid-template-columns: 1fr; gap: 30px; }
  .banner-content h2 { font-size: 34px; }
  .banner-item { height: 480px; }
  .section { padding: 56px 0; }
  .area-wrap { padding: 32px 28px; }
  .contact-form-wrap { padding: 30px 26px; }
  .news-card { grid-template-columns: 180px 1fr; }
  .stats-grid { gap: 12px; }
  .stat-cell strong { font-size: 32px; }

  /* ---- 平板及以下：导航折叠为汉堡菜单（769~1080 区间横向导航放不下） ---- */
  .header-inner { height: 64px; gap: 12px; }
  .nav-toggle { display: block; flex-shrink: 0; }
  .logo { flex: 1 1 auto; min-width: 0; max-width: 100%; }
  .logo-text { min-width: 0; }
  .logo-text strong, .logo-text em { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .logo-text strong { font-size: 20px; }
  .logo-text em { font-size: 11px; }
  .logo-mark { width: 42px; height: 42px; font-size: 22px; flex-shrink: 0; }
  .logo-img { height: 40px; }
  .nav {
    position: fixed; top: 64px; left: 0; right: 0; background: #fff; flex-direction: column;
    gap: 0; align-items: stretch; padding: 0 16px 16px; box-shadow: var(--shadow-hover);
    max-height: calc(100vh - 64px); overflow-y: auto; display: none; z-index: 899;
  }
  .nav.open { display: flex; }
  .nav-list { flex-direction: column; gap: 0; }
  .nav-item > a { padding: 14px 6px; border-bottom: 1px solid var(--border); font-size: 16px; }
  .nav-item > a::after { display: none; }
  .drop-menu {
    position: static; transform: none; opacity: 1; visibility: visible; box-shadow: none;
    padding: 0 0 6px 16px; min-width: 0; display: none; border-top: none;
  }
  .nav-item.has-drop.open .drop-menu { display: block; }
  .drop-menu a { padding: 9px 6px; border-bottom: 1px dashed var(--border); white-space: normal; }
  .nav-phone { border-left: none; padding: 14px 6px 4px; font-size: 18px; justify-content: center; }
}
@media (max-width: 768px) {
  /* 顶栏：手机只留热线 */
  .topbar-inner { justify-content: center; }
  .topbar-welcome { display: none; }
  .topbar-info { gap: 10px; }
  .topbar { font-size: 12.5px; }
  /* 导航 */
  .logo-text strong { font-size: 19px; }
  .logo-text em { font-size: 10px; }
  .logo-mark { width: 38px; height: 38px; font-size: 20px; border-radius: 6px; }
  .logo-img { height: 36px; }
  /* 轮播 */
  .banner-item { height: 420px; }
  .banner-content h2 { font-size: 25px; padding-left: 18px; }
  .banner-content p { font-size: 14.5px; margin: 10px 0 16px; padding-left: 18px; }
  .banner-tags { gap: 7px; margin-bottom: 24px; padding-left: 18px; }
  .banner-tags span { font-size: 12px; padding: 4px 12px; }
  .banner-btns { flex-direction: column; align-items: stretch; padding-left: 18px; }
  .banner-btns .btn { padding: 10px 18px; font-size: 14.5px; }
  .banner-arrow { display: none; }
  /* 简介 + 数据带 */
  .intro-wrap { gap: 24px; }
  .intro-title { font-size: 25px; }
  .intro-btns .btn { flex: 1; }
  .stats-band { padding: 30px 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 18px 10px; }
  .stat-cell + .stat-cell::before { display: none; }
  .stat-cell strong { font-size: 28px; }
  .stat-cell span { font-size: 12.5px; letter-spacing: 1px; }
  /* 板块 */
  .section { padding: 44px 0; }
  .section-head { margin-bottom: 34px; }
  .section-head h2 { font-size: 23px; }
  .section-head h2 span { letter-spacing: 3px; }
  .section-head p { font-size: 13.5px; }
  .svc-grid, .adv-grid, .case-grid, .mat-grid, .step-grid { grid-template-columns: 1fr; }
  .mat-card { padding: 22px 20px; }
  .news-grid { grid-template-columns: 1fr; }
  .news-card { grid-template-columns: 1fr; }
  .news-img { height: 180px; }
  .about-wrap { grid-template-columns: 1fr; gap: 28px; }
  .about-stats { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .stat-item { padding: 22px 8px; }
  .stat-item strong { font-size: 26px; }
  .detail-main { padding: 24px 20px; }
  .detail-title { font-size: 21px; }
  .contact-form-wrap { padding: 26px 20px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  /* 防止 iOS Safari 聚焦输入框时整页自动放大 */
  .form-item input, .form-item textarea, .form-item select { font-size: 16px; }
  .area-wrap { padding: 26px 22px; }
  .page-banner { padding: 44px 0; }
  .page-banner h1 { font-size: 25px; }
  .breadcrumb .container { height: auto; padding-top: 10px; padding-bottom: 10px; }
  .cta-inner { flex-direction: column; text-align: center; }
  .cta-text h2 { font-size: 20px; }
  .cta-btns { justify-content: center; }
  .cta-btns .btn { padding: 11px 20px; font-size: 14px; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; padding: 40px 20px 30px; }
  .footer-bottom { font-size: 12px; padding: 14px 10px; }
  /* 富文本表格：横向滚动，不撑破屏幕 */
  .rich-content table { display: block; width: 100%; overflow-x: auto; white-space: nowrap; -webkit-overflow-scrolling: touch; }
  .rich-content { font-size: 15px; }
  /* 分页 */
  .pager { flex-wrap: wrap; gap: 8px; }
  .pg { min-width: 38px; height: 38px; padding: 0 10px; }
  /* 悬浮按钮 */
  .float-bar { right: 10px; bottom: 66px; gap: 10px; }
  .float-btn { width: 50px; height: 50px; font-size: 20px; }
  .float-btn .icon { width: 19px; height: 19px; }
  .float-btn span { font-size: 9.5px; }
  .float-pop { right: 70px; bottom: auto; top: 50%; transform: translateY(-50%); }
  .float-pop::after { display: none; }
}
@media (max-width: 480px) {
  /* ---- 小屏手机独立微调 ---- */
  .container { padding: 0 14px; }
  .topbar-inner { height: 36px; }
  .topbar-addr { display: none; }
  .topbar-tel { font-size: 13px; letter-spacing: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; }
  .logo-text strong { font-size: 17px; letter-spacing: 0; }
  .logo-text em { display: none; }
  .logo-mark { width: 34px; height: 34px; font-size: 18px; }
  .logo-img { height: 32px; }
  .nav-phone { font-size: 17px; }
  .banner-item { height: 340px; }
  .banner-content h2 { font-size: 21px; }
  .banner-content p { font-size: 13.5px; }
  .banner-content { padding: 0 14px; }
  .banner-content h2, .banner-content p, .banner-tags, .banner-btns { padding-left: 12px; }
  .section { padding: 34px 0; }
  .section-head { padding: 0 10px; }
  .section-head h2 { font-size: 20px; display: block; padding: 0; }
  .section-head h2 span { letter-spacing: 3px; font-size: 10px; margin-top: 8px; }
  .section-head p { font-size: 12.5px; }
  .btn { padding: 10px 20px; font-size: 14px; letter-spacing: 0; }
  .btn-lg { padding: 13px 24px; font-size: 15px; }
  .intro-title { font-size: 22px; }
  .intro-btns { flex-direction: column; }
  .intro-btns .btn { width: 100%; }
  .stats-band { padding: 24px 0; }
  .stat-cell strong { font-size: 24px; }
  .stat-cell span { font-size: 11.5px; }
  .svc-img { height: 170px; }
  .case-img { height: 180px; }
  .news-img { height: 150px; }
  .stat-item strong { font-size: 22px; }
  .detail-main { padding: 20px 16px; }
  .detail-title { font-size: 19px; }
  .news-detail-wrap .detail-main { padding: 20px 16px; }
  .news-detail-wrap .rich-content { font-size: 14.5px; }
  .side-phone { font-size: 19px; }
  .contact-form-wrap { padding: 20px 16px; }
  .ci-qr { width: 140px; }
  .area-wrap { padding: 22px 16px; }
  .page-banner { padding: 34px 0; }
  .page-banner h1 { font-size: 21px; letter-spacing: 2px; }
  .page-banner p { letter-spacing: 3px; }
  .cta-text h2 { font-size: 18px; }
  .cta-btns { width: 100%; }
  .cta-btns .btn { flex: 1; padding: 11px 12px; }
  .err-wrap { padding: 70px 0; }
  .err-wrap h1 { font-size: 64px; }
  /* 弹窗自适应 */
  .modal-box { padding: 24px 18px; width: auto; }
  .modal-qr { width: 180px; height: 180px; }
  .msg-result { flex-direction: column; align-items: flex-start; gap: 4px; }
  /* 悬浮按钮收紧 */
  .float-bar { right: 8px; bottom: 56px; }
  .float-btn { width: 46px; height: 46px; border-radius: 12px; }
  .float-btn .icon { width: 18px; height: 18px; }
  .float-btn span { font-size: 9px; }
}