/* ============================================================
   清源回收 前台样式 —— 深蓝商务 · 现代企业风
   配色：深蓝 #1e3a5f / 主蓝 #2563eb / 金色 #c9a45c / 白底 / 浅灰 #f5f7fa
   对齐真实 HTML 类名（v12 + PHP 重写版）
   ============================================================ */
:root {
  --navy:         #1e3a5f;
  --navy-deep:    #142844;
  --navy-soft:    #2a4d75;
  --primary:      #2563eb;
  --primary-dk:   #1d4ed8;
  --primary-lt:   #3b82f6;
  --gold:         #c9a45c;
  --gold-dk:      #a8843e;
  --gold-lt:      #e0c188;

  --bg:           #ffffff;
  --bg-soft:      #f5f7fa;
  --bg-card:      #ffffff;
  --bg-hover:     #fafbfc;

  --ink:          #1a1a1a;
  --text:         #2a2a2a;
  --text-sub:     #6a7280;
  --text-faint:   #9ca3af;
  --text-light:   #ffffff;

  --border:       #e5e7eb;
  --border-dk:    #d1d5db;
  --border-navy:  rgba(30, 58, 95, 0.12);
  /* 补充：旧版模板引用但这里漏定义的变量 */
  --border-soft:  #eef1f5;

  --radius-sm:    2px;
  --radius:       4px;
  --radius-md:    6px;
  --radius-lg:    8px;

  --shadow-sm:    0 1px 2px rgba(30, 58, 95, 0.06);
  --shadow:       0 2px 8px rgba(30, 58, 95, 0.08);
  --shadow-md:    0 4px 16px rgba(30, 58, 95, 0.10);
  --shadow-lg:    0 8px 32px rgba(30, 58, 95, 0.12);

  --navy-grad:    linear-gradient(135deg, #1e3a5f 0%, #2a4d75 100%);
  --blue-grad:    linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  --gold-grad:    linear-gradient(135deg, #c9a45c 0%, #a8843e 100%);

  --font-cn: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans CN", system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-cn);
  color: var(--text);
  background: var(--bg);
  font-size: 15px; line-height: 1.8; -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; transition: color .25s; }
a:hover { color: var(--primary-dk); }
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; }

/* ---------- 通用按钮 ---------- */
.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 ease; line-height: 1.5; letter-spacing: 1px;
  font-family: var(--font-cn); font-weight: 500;
}
.btn-light {
  background: rgba(255, 255, 255, 0.95); color: var(--navy);
  border: 1px solid rgba(255, 255, 255, 0.95); font-weight: 600;
}
.btn-light:hover { background: #fff; color: var(--primary); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-ghost {
  background: rgba(255, 255, 255, 0.1); color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.6); backdrop-filter: blur(4px);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.2); border-color: #fff; color: #fff; }
.btn-lg { padding: 13px 36px; font-size: 16px; }
.btn-block { display: block; width: 100%; }
.btn-main { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-main:hover { background: var(--primary-dk); border-color: var(--primary-dk); }

/* ---------- 顶部条 ---------- */
.topbar {
  background: var(--navy-deep); color: rgba(255, 255, 255, 0.85);
  font-size: 13px;
}
.topbar-inner { display: flex; justify-content: space-between; align-items: center; height: 38px; gap: 16px; }
.topbar-welcome { color: rgba(255, 255, 255, 0.9); }
.topbar-info { display: flex; gap: 18px; align-items: center; }
.topbar-addr { color: rgba(255, 255, 255, 0.75); }
.topbar-addr::before { content: "📍 "; }
.topbar-tel { color: var(--gold-lt); font-weight: 600; letter-spacing: 1px; }
.topbar-tel:hover { color: #fff; }

/* ---------- 头部导航 ---------- */
.header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 900;
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 82px; gap: 24px;
}
.logo { display: flex; align-items: center; gap: 14px; flex-shrink: 0; min-width: 0; }
.logo-mark {
  width: 50px; height: 50px; border-radius: var(--radius);
  background: var(--navy-grad);
  color: #fff; font-size: 22px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gold);
  flex-shrink: 0;
}
.logo-img { width: 50px; height: 50px; border-radius: var(--radius); object-fit: cover; flex-shrink: 0; }
.logo-text { display: flex; flex-direction: column; line-height: 1.2; min-width: 0; }
.logo-text strong { font-size: 19px; color: var(--navy); letter-spacing: 1px; font-weight: 700; }
.logo-text em {
  font-size: 11px; color: var(--text-sub); letter-spacing: 0.5px;
  margin-top: 4px; font-style: normal; font-weight: 400;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  max-width: 320px;
}

/* ---------- 导航 ---------- */
.nav { display: flex; gap: 4px; align-items: center; flex-shrink: 0; }
.nav-list { display: flex; gap: 2px; align-items: center; list-style: none; margin: 0; padding: 0; flex-wrap: nowrap; }
.nav-item { position: relative; white-space: nowrap; }
.nav-item > a {
  display: inline-block; padding: 10px 12px;
  color: var(--text); font-size: 15px; font-weight: 500;
  border-radius: var(--radius); transition: color .25s; text-decoration: none;
  position: relative;
}
.nav-item > a::after {
  content: ""; position: absolute; left: 50%; bottom: 2px;
  transform: translateX(-50%); height: 2px; width: 0;
  background: var(--gold-grad); transition: width .3s;
}
.nav-item > a:hover { color: var(--navy); }
.nav-item > a:hover::after { width: 60%; }
.nav-item.active > a { color: var(--navy); font-weight: 600; }
.nav-item.active > a::after { width: 60%; }

.caret { font-size: 10px; margin-left: 4px; opacity: .7; transition: transform .3s; display: inline-block; }
.has-drop { position: relative; }
.has-drop:hover .caret { transform: rotate(180deg); }
.has-drop:hover .drop-menu,
.has-drop.open .drop-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.has-drop.open .caret { transform: rotate(180deg); }
.drop-menu {
  position: absolute; top: 100%; left: 0;
  min-width: 180px; padding: 8px 0;
  background: #fff; border: 1px solid var(--border);
  border-top: 3px solid var(--gold);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow-md);
  opacity: 0; visibility: hidden;
  transform: translateY(-8px); transition: all .25s;
  z-index: 50;
}
.drop-menu a {
  display: block; padding: 8px 18px;
  color: var(--text); font-size: 14px; white-space: nowrap;
}
.drop-menu a:hover { background: var(--bg-soft); color: var(--primary); padding-left: 22px; }

.nav-phone {
  display: inline-flex; align-items: center; gap: 8px;
  margin-left: 16px; padding: 8px 18px;
  background: var(--gold-grad); color: #fff;
  border-radius: var(--radius); font-weight: 600; font-size: 15px;
  letter-spacing: 1px; border: 1px solid var(--gold-dk);
  flex-shrink: 0;
}
.nav-phone:hover { color: #fff; box-shadow: var(--shadow-md); transform: translateY(-1px); }
.nav-phone .icon { width: 16px; height: 16px; }

/* 移动端切换 */
.nav-toggle {
  display: none; background: none; border: none;
  width: 40px; height: 40px; cursor: pointer; padding: 0;
  flex-direction: column; justify-content: center; gap: 5px;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px; background: var(--navy);
  transition: all .3s; margin: 0 auto;
}

/* ---------- 通用 section ---------- */
.section { padding: 80px 0; position: relative; }
.section-gray { background: var(--bg-soft); }
.section-svc { padding-top: 80px; }

.section-head { text-align: center; margin-bottom: 50px; }
.section-head h2 {
  display: inline-block; font-size: 32px; font-weight: 700;
  color: var(--navy); letter-spacing: 2px; position: relative;
  padding: 0 24px;
}
.section-head h2::before, .section-head h2::after {
  content: ""; position: absolute; top: 50%; transform: translateY(-50%);
  width: 40px; height: 1px; background: var(--gold);
}
.section-head h2::before { left: -28px; }
.section-head h2::after { right: -28px; }
.section-head h2 span {
  display: block; font-size: 13px; color: var(--text-sub);
  letter-spacing: 4px; font-weight: 500; margin-top: 10px;
}
.section-head > p {
  font-size: 14px; color: var(--text-sub); margin-top: 14px;
  letter-spacing: 1px;
}

/* ---------- 轮播 ---------- */
.banner {
  position: relative; height: 520px; overflow: hidden;
  background: var(--navy-deep);
}
.banner-list { position: absolute; inset: 0; }
.banner-item {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0; transition: opacity .8s;
  display: flex; align-items: center;
}
.banner-item.active { opacity: 1; }
.banner-mask {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(20, 40, 68, 0.85) 0%, rgba(30, 58, 95, 0.65) 100%);
}
.banner-content {
  position: relative; z-index: 2;
  width: 100%;
  padding: 0 40px;
  color: #fff;
  max-width: 1200px; margin: 0 auto;
}
.banner-content h2 {
  font-size: 46px; font-weight: 700; color: #fff;
  letter-spacing: 3px; margin-bottom: 18px; line-height: 1.3;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}
.banner-content p {
  font-size: 17px; color: rgba(255, 255, 255, 0.85);
  margin-bottom: 24px; letter-spacing: 1px;
}
.banner-tags { display: flex; gap: 10px; margin-bottom: 32px; flex-wrap: wrap; }
.banner-tags span {
  padding: 6px 16px; font-size: 13px;
  border: 1px solid rgba(255, 255, 255, 0.3); color: rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-sm); background: rgba(255, 255, 255, 0.05);
}
.banner-btns { display: flex; gap: 14px; flex-wrap: wrap; }

.banner-dots {
  position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 8px; z-index: 3;
}
.banner-dots button {
  width: 28px; height: 3px; background: rgba(255, 255, 255, 0.3);
  border: none; cursor: pointer; transition: all .3s; padding: 0;
}
.banner-dots button.active { background: var(--gold); width: 40px; }
.banner-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.15); color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  font-size: 28px; line-height: 1; cursor: pointer;
  z-index: 3; transition: all .25s; backdrop-filter: blur(4px);
}
.banner-arrow:hover { background: rgba(255, 255, 255, 0.25); border-color: var(--gold); color: var(--gold-lt); }
.banner-arrow.prev { left: 30px; }
.banner-arrow.next { right: 30px; }

/* ---------- 服务卡片 ---------- */
.svc-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.svc-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden; transition: all .3s;
  text-decoration: none; color: inherit; display: block;
  position: relative;
}
.svc-card::before {
  content: ""; position: absolute; left: 0; top: 0;
  width: 100%; height: 3px; background: var(--navy-grad);
  opacity: 0; transition: opacity .3s;
}
.svc-card:hover {
  transform: translateY(-4px); border-color: var(--navy);
  box-shadow: var(--shadow-md);
}
.svc-card:hover::before { opacity: 1; }
.svc-card:hover .svc-more { color: var(--navy); }

.svc-img {
  width: 100%; height: 180px;
  background: var(--bg-soft); overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.svc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.svc-card:hover .svc-img img { transform: scale(1.06); }

.svc-body { padding: 22px 22px 24px; }
.svc-body h3 {
  font-size: 19px; font-weight: 600; color: var(--navy);
  margin-bottom: 10px; letter-spacing: 1px;
}
.svc-body p {
  font-size: 13px; color: var(--text-sub); line-height: 1.7;
  margin-bottom: 14px; min-height: 44px;
}
.svc-more {
  display: inline-flex; align-items: center; gap: 4px;
  color: var(--gold-dk); font-size: 13px; font-weight: 600;
  letter-spacing: 1px; transition: color .25s;
}
.svc-more::after { content: "→"; transition: transform .3s; }
.svc-card:hover .svc-more::after { transform: translateX(4px); }

/* ---------- 企业服务优势 ---------- */
.adv-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.adv-item {
  background: #fff; padding: 32px 24px;
  border: 1px solid var(--border); border-radius: var(--radius);
  text-align: center; transition: all .3s;
}
.adv-item:hover { border-color: var(--navy); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.adv-icon {
  width: 60px; height: 60px;
  background: var(--bg-soft); color: var(--primary);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 18px;
  border: 1px solid var(--border-navy);
  transition: all .3s;
}
.adv-icon .icon { width: 28px; height: 28px; }
.adv-item:hover .adv-icon { background: var(--primary); color: #fff; border-color: var(--primary); }
.adv-item h3 {
  font-size: 17px; font-weight: 600; color: var(--navy);
  margin-bottom: 10px; letter-spacing: 1px;
}
.adv-item p { font-size: 13px; color: var(--text-sub); line-height: 1.8; }

/* ---------- 材质分类 ---------- */
.mat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.mat-card {
  background: #fff; padding: 26px 24px;
  border: 1px solid var(--border); border-radius: var(--radius);
  transition: all .3s;
}
.mat-card:hover { border-color: var(--navy); box-shadow: var(--shadow); }
.mat-card h3 {
  font-size: 17px; font-weight: 600; color: var(--navy);
  margin-bottom: 16px; letter-spacing: 1px;
  padding-bottom: 12px; border-bottom: 2px solid var(--gold);
  display: inline-block;
}
.mat-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.mat-tags span {
  padding: 5px 12px; font-size: 13px;
  background: var(--bg-soft); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
}

/* ---------- 流程 ---------- */
.section-process .section-head { margin-bottom: 50px; }
.step-grid {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px;
}
.step-item {
  background: #fff; padding: 28px 18px;
  border: 1px solid var(--border); border-radius: var(--radius);
  text-align: center; transition: all .3s;
}
.step-item:hover { border-color: var(--navy); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 48px; height: 48px;
  background: var(--bg-soft); color: var(--navy);
  border-radius: 50%;
  font-weight: 700; font-size: 18px; letter-spacing: 1px;
  margin-bottom: 14px;
  border: 2px solid var(--border-navy);
  transition: all .3s;
}
.step-item:hover .step-num { background: var(--navy-grad); color: #fff; border-color: var(--navy); }
.step-item h3 {
  font-size: 15px; color: var(--navy); font-weight: 600; letter-spacing: 1px;
  margin-bottom: 6px;
}
.step-item p { font-size: 12px; color: var(--text-sub); line-height: 1.6; }

/* ---------- 案例 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.case-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  transition: all .3s;
}
.case-card:hover { transform: translateY(-3px); border-color: var(--navy); box-shadow: var(--shadow); }
.case-img {
  height: 200px; overflow: hidden;
  background: var(--bg-soft);
  border-bottom: 3px solid var(--gold);
}
.case-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.case-card:hover .case-img img { transform: scale(1.05); }
.case-body { padding: 22px; }
.case-body h3 {
  font-size: 16px; font-weight: 600; color: var(--navy);
  margin-bottom: 10px; line-height: 1.5;
}
.case-body p { font-size: 13px; color: var(--text-sub); line-height: 1.7; }

/* ---------- 覆盖区域 ---------- */
.area-wrap {
  background: #fff; padding: 36px;
  border: 1px solid var(--border); border-radius: var(--radius);
  border-top: 3px solid var(--gold);
}
.area-tags-wrap { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.area-tag {
  padding: 6px 14px; font-size: 13px;
  background: var(--bg-soft); color: var(--navy);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.area-text {
  font-size: 14px; color: var(--text); line-height: 1.9;
}

/* ---------- CTA strip ---------- */
.cta-strip {
  background: var(--navy-grad); color: #fff;
  padding: 50px 0; position: relative; overflow: hidden;
  border-top: 3px solid var(--gold); border-bottom: 3px solid var(--gold);
}
.cta-strip::before {
  content: ""; position: absolute; right: -50px; top: -50px;
  width: 200px; height: 200px; background: var(--gold);
  opacity: 0.10; border-radius: 50%;
}
.cta-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 30px; flex-wrap: wrap; position: relative; z-index: 1;
}
.cta-text h2 {
  font-size: 26px; font-weight: 600; color: #fff;
  letter-spacing: 1px; margin-bottom: 10px;
}
.cta-text p { font-size: 14px; color: rgba(255, 255, 255, 0.85); }
.cta-btns { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- 页脚 ---------- */
.footer {
  background: var(--navy-deep); color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 0;
  border-top: 3px solid var(--gold);
}
.footer-row {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px; padding-bottom: 40px;
}
.footer-brand { display: flex; flex-direction: column; gap: 16px; }
.footer-logo {
  display: flex; align-items: center; gap: 12px;
}
.footer-logo-mark {
  width: 44px; height: 44px;
  background: var(--navy-grad); color: #fff;
  font-weight: 700; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius); border: 1px solid var(--gold);
}
.footer-brand-name { font-size: 18px; color: #fff; font-weight: 600; }
.footer-desc { font-size: 13px; line-height: 1.8; color: rgba(255, 255, 255, 0.65); }
.footer-tel { font-size: 26px; font-weight: 700; color: var(--gold-lt); letter-spacing: 1px; }
.footer-tel::before { content: "☎ "; }
.footer-title {
  font-size: 14px; font-weight: 600; color: #fff;
  margin-bottom: 18px; letter-spacing: 2px;
  padding-bottom: 10px; border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-list { display: flex; flex-direction: column; gap: 10px; }
.footer-list a { color: rgba(255, 255, 255, 0.65); font-size: 13px; }
.footer-list a:hover { color: var(--gold-lt); }
.footer-list a::before { content: "› "; color: var(--gold); }
.footer-copy {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  text-align: center; font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
}
.footer-copy a { color: rgba(255, 255, 255, 0.65); }
.footer-copy a:hover { color: var(--gold-lt); }

/* ---------- 浮动工具栏 ---------- */
.float-tool {
  position: fixed; right: 16px; bottom: 100px;
  z-index: 800; display: flex; flex-direction: column; gap: 8px;
}
.float-btn {
  width: 50px; height: 50px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: var(--navy); font-size: 18px;
  cursor: pointer; transition: all .25s;
  box-shadow: var(--shadow-sm); text-decoration: none;
}
.float-btn:hover {
  background: var(--navy); color: #fff;
  border-color: var(--navy); transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.float-btn-tel { background: var(--gold-grad); color: #fff; border-color: var(--gold-dk); }
.float-btn-tel:hover { background: var(--navy); border-color: var(--navy); }
#floatTop { display: none !important; }
#floatTop[style*="flex"] { display: flex !important; }

/* ---------- 文章详情 ---------- */
.article { background: #fff; padding: 50px; border: 1px solid var(--border); border-radius: var(--radius); }
.article h1, .article h2, .article h3 { color: var(--navy); margin: 28px 0 16px; font-weight: 600; }
.article h1 { font-size: 30px; letter-spacing: 1px; }
.article h2 { font-size: 22px; padding-left: 14px; border-left: 3px solid var(--gold); }
.article h3 { font-size: 18px; }
.article h3::before { content: "▸ "; color: var(--gold-dk); }
.article p { color: var(--text); margin-bottom: 14px; line-height: 1.9; font-size: 15px; }
.article ul, .article ol { padding-left: 24px; color: var(--text); margin-bottom: 14px; }
.article li { margin-bottom: 8px; line-height: 1.8; }
.article ul li { list-style: none; position: relative; padding-left: 18px; }
.article ul li::before { content: "·"; position: absolute; left: 0; color: var(--gold-dk); font-weight: 700; }
.article strong { color: var(--navy); }

.build-tag {
  position: fixed; right: 0; bottom: 0;
  background: rgba(30, 58, 95, 0.8); color: #fff;
  padding: 4px 10px; font-size: 11px; z-index: 999;
  border-top-left-radius: 4px;
  font-family: "Consolas", monospace;
}

/* ---------- 错误页 ---------- */
.err-wrap { text-align: center; padding: 100px 20px; }
.err-wrap h2 { font-size: 28px; color: var(--navy); margin-bottom: 14px; }
.err-wrap p { color: var(--text-sub); margin-bottom: 24px; }

/* ---------- 分页 ---------- */
.pager { display: flex; justify-content: center; gap: 6px; padding: 30px 0; }
.pager a, .pager span {
  padding: 8px 14px; min-width: 36px; text-align: center;
  background: #fff; border: 1px solid var(--border);
  color: var(--text); border-radius: var(--radius); font-size: 13px;
}
.pager a:hover { color: var(--navy); border-color: var(--navy); }
.pager .active { background: var(--navy); color: #fff; border-color: var(--navy); }

/* ---------- 面包屑 ---------- */
.crumbs { padding: 16px 0; font-size: 13px; color: var(--text-sub); border-bottom: 1px solid var(--border); }
.crumbs a { color: var(--text-sub); }
.crumbs a:hover { color: var(--navy); }
.crumbs i { color: var(--text-faint); margin: 0 8px; font-style: normal; }
.crumbs em { color: var(--navy); font-style: normal; }

/* ---------- 内页横幅 ---------- */
.page-banner {
  background: var(--navy-grad); color: #fff;
  padding: 60px 0; text-align: center;
  border-bottom: 3px solid var(--gold);
}
.page-banner h1 { font-size: 30px; font-weight: 700; letter-spacing: 2px; margin-bottom: 10px; }
.page-banner p { font-size: 14px; color: rgba(255, 255, 255, 0.8); }

/* ---------- 表单 ---------- */
.form-card { background: #fff; padding: 40px; border: 1px solid var(--border); border-radius: var(--radius); }
.form-title { font-size: 24px; font-weight: 600; color: var(--navy); margin-bottom: 8px; letter-spacing: 1px;
  padding-bottom: 16px; border-bottom: 2px solid var(--gold); }
.form-sub { font-size: 13px; color: var(--text-sub); margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.form-input, .form-textarea {
  width: 100%; padding: 12px 14px;
  background: #fff; color: var(--text);
  border: 1px solid var(--border-dk);
  border-radius: var(--radius); font-size: 14px;
  font-family: var(--font-cn);
  transition: border .25s;
}
.form-input:focus, .form-textarea:focus {
  outline: none; border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.08);
}
.form-textarea { min-height: 110px; resize: vertical; }
.form-tip { font-size: 12px; color: var(--text-sub); margin-top: 12px; }

/* ---------- 联系信息 ---------- */
.contact-info { background: #fff; padding: 36px; border: 1px solid var(--border); border-radius: var(--radius); }
.contact-row { display: flex; align-items: flex-start; gap: 14px; padding: 18px 0; border-bottom: 1px dashed var(--border); }
.contact-row:last-child { border-bottom: none; }
.contact-icon {
  width: 40px; height: 40px;
  background: var(--bg-soft); color: var(--navy);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; flex-shrink: 0;
  border: 1px solid var(--border-navy);
}
.contact-label { font-size: 12px; color: var(--text-sub); margin-bottom: 4px; letter-spacing: 1px; }
.contact-value { font-size: 15px; color: var(--text); }
.contact-value-big { font-size: 24px; color: var(--navy); font-weight: 700; letter-spacing: 1px; }

/* ============================================================
   兼容层：PHP 模板实际输出的旧版类名 → 深蓝商务主题样式
   （现有 style.css 为 v12 命名，PHP 为旧版命名，此处补齐缺失组件）
   ============================================================ */

/* ---------- 面包屑 ---------- */
.breadcrumb {
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
  font-size: 13px; color: var(--text-sub);
}
.breadcrumb .container {
  display: flex; align-items: center; gap: 8px;
  min-height: 46px; padding-top: 10px; padding-bottom: 10px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-sub); }
.breadcrumb a:hover { color: var(--navy); }
.breadcrumb i { font-style: normal; color: var(--text-faint); }
.breadcrumb em { font-style: normal; color: var(--navy); font-weight: 600; }

/* ---------- 关于我们 ---------- */
.about-wrap { display: grid; grid-template-columns: 1.15fr 1fr; gap: 40px; align-items: center; }
.about-img img {
  width: 100%; border-radius: var(--radius);
  border: 1px solid var(--border); box-shadow: var(--shadow-md);
}
.about-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.stat-item {
  background: #fff; border: 1px solid var(--border);
  border-top: 3px solid var(--gold);
  border-radius: var(--radius); padding: 28px 12px;
  text-align: center; transition: all .3s;
}
.stat-item:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.stat-item strong {
  display: block; font-size: 30px; font-weight: 700;
  color: var(--navy); letter-spacing: 1px; line-height: 1.2;
}
.stat-item span { font-size: 13px; color: var(--text-sub); letter-spacing: 1px; }

/* ---------- 富文本正文 ---------- */
.rich-content {
  background: #fff; padding: 44px 48px;
  border: 1px solid var(--border); border-radius: var(--radius);
  color: var(--text); font-size: 15px; line-height: 1.9;
}
.rich-content h2 {
  font-size: 21px; font-weight: 600; color: var(--navy);
  margin: 30px 0 16px; padding-left: 14px;
  border-left: 3px solid var(--gold); letter-spacing: 1px;
}
.rich-content h2:first-child { margin-top: 0; }
.rich-content h3 {
  font-size: 17px; font-weight: 600; color: var(--navy);
  margin: 22px 0 10px; letter-spacing: 1px;
}
.rich-content h3::before { content: "▸ "; color: var(--gold-dk); }
.rich-content p { margin-bottom: 14px; }
.rich-content ul, .rich-content ol { margin: 0 0 14px; }
.rich-content li { position: relative; padding-left: 20px; margin-bottom: 8px; }
.rich-content ul li::before {
  content: "·"; position: absolute; left: 6px; top: 0;
  color: var(--gold-dk); font-weight: 700;
}
.rich-content ol { counter-reset: rc; }
.rich-content ol li { counter-increment: rc; padding-left: 28px; }
.rich-content ol li::before {
  content: counter(rc); position: absolute; left: 0; top: 4px;
  width: 20px; height: 20px; line-height: 20px; text-align: center;
  background: var(--navy-grad); color: #fff;
  border-radius: 50%; font-size: 12px; font-weight: 600;
}
.rich-content strong { color: var(--navy); font-weight: 600; }
.rich-content a { color: var(--primary); text-decoration: underline; }
.rich-content img {
  border-radius: var(--radius); margin: 14px 0;
  border: 1px solid var(--border);
}
.rich-content table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.rich-content th, .rich-content td {
  border: 1px solid var(--border); padding: 10px 12px;
  font-size: 14px; text-align: left;
}
.rich-content th { background: var(--bg-soft); color: var(--navy); font-weight: 600; }

/* ---------- 联系我们 ---------- */
.contact-wrap { display: grid; grid-template-columns: 380px 1fr; gap: 28px; align-items: start; }
.contact-wrap .contact-info { padding: 32px; }
.contact-t {
  font-size: 22px; font-weight: 600; color: var(--navy);
  letter-spacing: 1px; margin-bottom: 20px;
  padding-bottom: 14px; border-bottom: 2px solid var(--gold);
}
.ci-card {
  padding: 16px 0;
  border-bottom: 1px dashed var(--border);
}
.ci-card:last-of-type { border-bottom: none; }
.ci-card h3 {
  font-size: 12px; font-weight: 500; color: var(--text-sub);
  letter-spacing: 2px; margin-bottom: 6px;
}
.ci-card p { font-size: 16px; color: var(--text); font-weight: 600; }
.ci-card p a { color: var(--navy); }
.ci-card p a:hover { color: var(--primary); }
.ci-wechat { text-align: center; }
.ci-wechat p { font-size: 14px; font-weight: 400; }
.ci-qr {
  width: 150px; margin: 12px auto; padding: 6px;
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius);
}
.ci-area { font-size: 13px; color: var(--text-sub); line-height: 1.8; margin-top: 16px; }
.ci-area strong { color: var(--navy); }
.contact-form-wrap {
  background: #fff; padding: 36px 38px;
  border: 1px solid var(--border); border-radius: var(--radius);
}
.contact-sub { font-size: 13px; color: var(--text-sub); margin: -12px 0 22px; }
.contact-form-wrap .form-row { margin-bottom: 0; }
.form-item { margin-bottom: 18px; }
.form-item label {
  display: block; font-size: 13px; color: var(--text-sub);
  margin-bottom: 8px; letter-spacing: 1px;
}
.form-item label i { color: var(--primary); font-style: normal; }
.form-item input, .form-item textarea, .form-item select {
  width: 100%; padding: 12px 14px;
  background: #fff; color: var(--text);
  border: 1px solid var(--border-dk); border-radius: var(--radius);
  font-size: 14px; font-family: var(--font-cn);
  transition: border .25s, box-shadow .25s;
}
.form-item input:focus, .form-item textarea:focus, .form-item select:focus {
  outline: none; border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.08);
}
.form-item textarea { min-height: 110px; resize: vertical; }
.contact-form-wrap .form-tip { text-align: center; margin-top: 16px; }
.form-tip a { color: var(--navy); font-weight: 600; }
.btn-text { }
.btn-spinner { display: inline-block; padding-left: 8px; }
.btn[disabled] { opacity: .7; cursor: not-allowed; }
.msg-result {
  display: flex; align-items: center; gap: 12px;
  padding: 13px 18px; border-radius: var(--radius);
  font-size: 14px; margin-bottom: 20px; border: 1px solid;
}
.msg-result strong { font-size: 15px; flex-shrink: 0; }
.msg-result span { flex: 1; }
.msg-ok { background: #eef7f0; border-color: #2f7d4f; color: #1f6b3b; }
.msg-ok strong { color: #2f7d4f; }
.msg-err { background: #fdf0f0; border-color: #d9534f; color: #a8322e; }
.msg-err strong { color: #d9534f; }

/* ---------- 新闻列表 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.news-card {
  display: grid; grid-template-columns: 200px 1fr; gap: 18px;
  background: #fff; padding: 16px;
  border: 1px solid var(--border); border-radius: var(--radius);
  transition: all .3s; text-decoration: none; color: inherit;
}
.news-card:hover { border-color: var(--navy); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.news-img {
  height: 130px; overflow: hidden;
  border-radius: var(--radius-sm); background: var(--bg-soft);
}
.news-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.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: 12px; color: var(--text-sub); margin-bottom: 8px;
}
.news-cat {
  padding: 2px 10px; border-radius: var(--radius-sm);
  background: var(--bg-soft); color: var(--navy);
  font-weight: 600; border: 1px solid var(--border);
}
.news-body h3 {
  font-size: 16px; font-weight: 600; color: var(--navy);
  margin-bottom: 8px; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden;
}
.news-body p {
  font-size: 13px; color: var(--text-sub); line-height: 1.7; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-more {
  color: var(--gold-dk); font-size: 13px; font-weight: 600;
  margin-top: 8px; letter-spacing: 1px;
}
.news-card:hover .news-more { color: var(--navy); }
.pager .pg {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 8px 14px; min-width: 36px;
  background: #fff; border: 1px solid var(--border);
  color: var(--text); border-radius: var(--radius); font-size: 13px;
}
.pager .pg:hover { color: var(--navy); border-color: var(--navy); }
.pager .pg.active { background: var(--navy); color: #fff; border-color: var(--navy); font-weight: 600; }

/* ---------- 详情页 ---------- */
.detail-wrap { display: grid; grid-template-columns: 260px 1fr; gap: 28px; align-items: start; }
.news-detail-wrap { display: grid; grid-template-columns: 1fr 280px; gap: 28px; align-items: start; }
.detail-side { display: flex; flex-direction: column; gap: 18px; position: sticky; top: 100px; }
.side-box {
  background: #fff; padding: 22px;
  border: 1px solid var(--border); border-radius: var(--radius);
  border-top: 3px solid var(--navy);
}
.side-title {
  font-size: 15px; font-weight: 600; color: var(--navy);
  letter-spacing: 1px; margin-bottom: 14px;
  padding-bottom: 10px; border-bottom: 1px solid var(--border);
}
.side-link {
  display: block; padding: 10px 12px; border-radius: var(--radius-sm);
  font-size: 14px; color: var(--text-sub); margin-bottom: 4px;
  transition: all .25s;
}
.side-link::before { content: "› "; color: var(--gold-dk); }
.side-link:hover { background: var(--bg-soft); color: var(--navy); padding-left: 16px; }
.side-link.active { background: var(--navy); color: #fff; font-weight: 600; }
.side-link.active::before { color: var(--gold-lt); }
.side-contact {
  background: var(--navy-grad); color: rgba(255, 255, 255, 0.85);
  border-top-color: var(--gold);
}
.side-contact .side-title { color: #fff; border-bottom-color: rgba(255, 255, 255, 0.18); }
.side-contact p { font-size: 13px; color: rgba(255, 255, 255, 0.8); margin-bottom: 4px; }
.side-phone {
  display: block; font-size: 21px; font-weight: 700;
  color: var(--gold-lt); letter-spacing: 1px; margin-bottom: 8px;
}
.side-phone:hover { color: #fff; }
.side-contact .btn { margin-top: 14px; background: var(--gold-grad); color: #fff; border-color: var(--gold-dk); }
.side-contact .btn:hover { background: var(--gold-dk); color: #fff; }
.side-news {
  display: block; font-size: 13.5px; color: var(--text-sub);
  padding: 10px 0; border-bottom: 1px dashed var(--border);
  line-height: 1.6;
}
.side-news:last-child { border-bottom: none; }
.side-news:hover { color: var(--navy); }
.side-empty { font-size: 13px; color: var(--text-faint); }
.detail-main {
  background: #fff; padding: 36px 40px; min-width: 0;
  border: 1px solid var(--border); border-radius: var(--radius);
}
.news-detail-wrap .detail-main { padding: 40px 46px; }
.news-detail-wrap .rich-content { padding: 0; border: none; background: transparent; font-size: 15.5px; }
.detail-title {
  font-size: 26px; font-weight: 700; color: var(--navy);
  letter-spacing: 1px; padding-bottom: 16px; margin-bottom: 22px;
  border-bottom: 1px solid var(--border);
}
.detail-cover {
  border-radius: var(--radius); overflow: hidden; margin-bottom: 24px;
  border: 1px solid var(--border); background: var(--bg-soft);
}
.detail-cover img { width: 100%; }
.news-info {
  display: flex; gap: 16px; flex-wrap: wrap;
  font-size: 13px; color: var(--text-sub);
  margin-bottom: 22px; padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.news-nav {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  margin-top: 30px; padding-top: 18px;
  border-top: 1px solid var(--border); font-size: 14px;
}
.news-nav a { color: var(--navy); }
.news-nav a:hover { color: var(--primary); }
.news-nav span { color: var(--text-faint); }

/* ---------- 页脚（PHP 输出 footer-grid 结构） ---------- */
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px; padding: 56px 0 40px;
}
.footer-col { min-width: 0; }
.footer-logo { display: flex; flex-direction: column; gap: 4px; margin-bottom: 16px; }
.footer-logo strong { font-size: 20px; color: #fff; font-weight: 700; letter-spacing: 2px; }
.footer-logo em {
  font-style: normal; font-size: 12px;
  color: var(--gold-lt); letter-spacing: 1px;
}
.footer-col .footer-desc { font-size: 13px; line-height: 1.9; }
.footer-col h4 {
  font-size: 14px; font-weight: 600; color: #fff;
  letter-spacing: 2px; margin-bottom: 18px;
  padding-bottom: 10px; border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: rgba(255, 255, 255, 0.65); font-size: 13px; }
.footer-links a:hover { color: var(--gold-lt); }
.footer-links a::before { content: "› "; color: var(--gold); }
.footer-contact { font-size: 13px; color: rgba(255, 255, 255, 0.65); margin-bottom: 10px; line-height: 1.7; }
.footer-contact a { color: var(--gold-lt); font-weight: 600; }
.footer-contact a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 18px 0; text-align: center;
  font-size: 12px; color: rgba(255, 255, 255, 0.5);
}

/* ---------- 悬浮工具栏（PHP 输出 float-bar 结构） ---------- */
.float-bar {
  position: fixed; right: 16px; bottom: 100px; z-index: 800;
  display: flex; flex-direction: column; gap: 10px;
}
.float-bar .float-btn {
  width: 58px; height: 58px; border-radius: var(--radius);
  flex-direction: column; gap: 3px;
  font-size: 22px; line-height: 1;
  background: #fff; color: var(--navy);
  border: 1px solid var(--border); box-shadow: var(--shadow);
  padding: 0;
}
.float-bar .float-btn span {
  font-size: 10.5px; line-height: 1; letter-spacing: 0; font-weight: 500;
}
.float-bar .float-btn .icon { width: 21px; height: 21px; }
.float-bar .float-btn:hover {
  background: var(--navy); color: #fff; border-color: var(--navy);
  transform: translateY(-2px); box-shadow: var(--shadow-md);
}
.float-bar #floatPhone { color: var(--navy); }
.float-bar #floatWechat { color: var(--gold-dk); }
.float-bar #floatTop { color: var(--text-sub); }
.float-pop {
  position: fixed; right: 88px; bottom: 168px; z-index: 810;
  background: #fff; border: 1px solid var(--border);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius); padding: 14px 20px;
  text-align: center; box-shadow: var(--shadow-md);
}
.float-pop strong {
  display: block; font-size: 12px; color: var(--text-sub);
  letter-spacing: 2px; margin-bottom: 4px; font-weight: 500;
}
.float-pop a {
  display: block; font-size: 20px; font-weight: 700;
  color: var(--navy); letter-spacing: 1px;
}
.float-pop a:hover { color: var(--primary); }
.float-pop em {
  font-style: normal; font-size: 12px; color: var(--text-sub);
  display: block; margin-top: 4px;
}

/* ---------- 微信弹窗 ---------- */
.modal { position: fixed; inset: 0; z-index: 1100; display: none; }
.modal.show { display: block; }
.modal-mask { position: absolute; inset: 0; background: rgba(20, 40, 68, 0.6); }
.modal-box {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 340px; max-width: calc(100vw - 32px);
  background: #fff; border-radius: var(--radius);
  border-top: 3px solid var(--gold);
  padding: 32px 30px 26px; text-align: center;
  box-shadow: var(--shadow-lg);
}
.modal-close {
  position: absolute; right: 10px; top: 6px;
  width: 34px; height: 34px; padding: 0;
  border: none; background: none; cursor: pointer;
  font-size: 26px; line-height: 1; color: var(--text-faint);
}
.modal-close:hover { color: var(--navy); }
.modal-box h3 {
  font-size: 18px; font-weight: 600; color: var(--navy);
  letter-spacing: 1px; margin-bottom: 16px;
}
.modal-qr {
  width: 190px; height: 190px; margin: 0 auto 14px;
  padding: 8px; object-fit: contain;
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius);
}
.modal-wechat-id { font-size: 14px; color: var(--text-sub); margin-bottom: 14px; word-break: break-all; }
.modal-wechat-id strong { color: var(--navy); font-weight: 700; user-select: all; }
.btn-copy { background: var(--gold-grad); color: #fff; border-color: var(--gold-dk); }
.btn-copy:hover { background: var(--gold-dk); color: #fff; }
.modal-tip { font-size: 12px; color: var(--text-sub); margin-top: 12px; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; top: 20%; transform: translateX(-50%);
  background: var(--navy-deep); color: #fff;
  padding: 12px 24px; border-radius: var(--radius);
  font-size: 14px; z-index: 1200; box-shadow: var(--shadow-lg);
}

/* ---------- 404 ---------- */
.err-wrap h1 { font-size: 84px; font-weight: 700; color: var(--navy); letter-spacing: 4px; line-height: 1.1; }

/* ============================================================
   响应式适配
   断点：1200（小笔记本）→ 1080（平板横屏）→ 1024 → 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; }
  .header-inner { gap: 16px; }
  .nav-item > a { padding: 10px 10px; font-size: 14.5px; }
  .nav-phone { margin-left: 10px; padding: 8px 14px; }
  .banner-content h2 { font-size: 40px; }
}

/* ---------- 平板横屏 ≤1080 ---------- */
@media (max-width: 1080px) {
  .step-grid { grid-template-columns: repeat(3, 1fr); }
  .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 1 240px; }
  .news-detail-wrap .detail-main { padding: 32px 30px; }
  .about-wrap { gap: 30px; }
}

@media (max-width: 1024px) {
  .nav-list { gap: 2px; }
  .nav-item > a { padding: 8px 12px; font-size: 14px; }
  .nav-phone { font-size: 14px; padding: 8px 14px; }
  .logo-text em { max-width: 300px; }
  .banner { height: 470px; }
  .banner-content h2 { font-size: 36px; }
  .footer-row { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; padding: 46px 0 34px; }
  .step-grid { grid-template-columns: repeat(3, 1fr); }
  .cta-inner { flex-direction: column; text-align: center; }
  .rich-content { padding: 34px 32px; }
  .news-grid { gap: 18px; }
  .news-card { grid-template-columns: 170px 1fr; gap: 14px; }
  .news-img { height: 112px; }
}

/* ---------- 平板竖屏 ≤992 ---------- */
@media (max-width: 992px) {
  .header-inner { height: 74px; }
  .nav-item > a { padding: 8px 9px; font-size: 13.5px; }
  .nav-phone { font-size: 13.5px; padding: 7px 12px; }
  .banner { height: 440px; }
  .banner-content h2 { font-size: 32px; }
  .section { padding: 60px 0; }
  .section-head { margin-bottom: 38px; }
  .section-head h2 { font-size: 27px; }
  .about-wrap { grid-template-columns: 1fr; }
  .stat-item strong { font-size: 26px; }
  .page-banner { padding: 50px 0; }
  .page-banner h1 { font-size: 27px; }
  .area-wrap { padding: 28px; }
}
@media (max-width: 768px) {
  /* 全局 */
  .container { padding: 0 16px; }
  body { line-height: 1.8; }
  html { scroll-padding-top: 70px; }

  /* 顶栏 */
  .topbar-inner { font-size: 12px; gap: 8px; height: 34px; }
  .topbar-info { gap: 10px; }
  .topbar-welcome { display: none; }
  .topbar-inner { justify-content: center; }

  /* 头部 + 导航抽屉 */
  .header-inner { height: 62px; gap: 12px; }
  .logo { gap: 10px; }
  .logo-mark { width: 40px; height: 40px; font-size: 18px; }
  .logo-img { width: 40px; height: 40px; }
  .logo-text strong { font-size: 17px; letter-spacing: 0.5px; }
  .logo-text em { display: none; }
  .nav-toggle { display: flex; width: 44px; height: 44px; margin-right: -8px; }
  .nav {
    position: absolute; top: 100%; left: 0; right: 0; width: 100%;
    background: #fff; flex-direction: column;
    border-top: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    padding: 8px 16px 14px;
    max-height: calc(100vh - 62px); overflow-y: auto; -webkit-overflow-scrolling: touch;
    display: none; align-items: stretch; z-index: 890;
  }
  .nav.open { display: flex; }
  .nav-list { flex-direction: column; gap: 0; align-items: stretch; width: 100%; }
  .nav-item { width: 100%; }
  .nav-item > a { display: block; padding: 14px 2px; font-size: 16px; border-bottom: 1px solid var(--border-soft); }
  .nav-item > a::after { display: none; }
  .caret { float: right; margin-top: 4px; font-size: 12px; }
  .drop-menu {
    position: static; opacity: 1; visibility: visible; transform: none;
    border: none; border-top: none; box-shadow: none;
    padding: 0 0 4px 14px; min-width: 0; width: 100%;
    display: none;
  }
  .has-drop.open > .drop-menu { display: block; }
  .drop-menu a { padding: 10px 2px; font-size: 14.5px; white-space: normal; border-bottom: 1px dashed var(--border); }
  .drop-menu a:hover { padding-left: 4px; }
  .nav-phone { margin: 14px 0 0; justify-content: center; width: 100%; min-height: 44px; }

  /* 轮播 */
  .banner { height: 380px; }
  .banner-content { padding: 0 16px; }
  .banner-content h2 { font-size: 24px; letter-spacing: 1px; line-height: 1.35; margin-bottom: 12px; }
  .banner-content p { font-size: 14px; margin-bottom: 18px; }
  .banner-tags { gap: 7px; margin-bottom: 22px; }
  .banner-tags span { font-size: 12px; padding: 5px 12px; }
  .banner-btns { flex-direction: column; gap: 10px; }
  .banner-btns .btn { width: 100%; }
  .banner-arrow { display: none; }
  .banner-dots { bottom: 14px; }

  /* 板块 */
  .section { padding: 40px 0; }
  .section-svc { padding-top: 40px; }
  .section-head { margin-bottom: 28px; }
  .section-head h2 { font-size: 21px; letter-spacing: 1px; padding: 0; }
  .section-head h2 span { font-size: 11px; letter-spacing: 3px; margin-top: 8px; }
  .section-head h2::before, .section-head h2::after { display: none; }
  .section-head > p { font-size: 13px; margin-top: 10px; padding: 0 6px; }

  /* 卡片 */
  .svc-grid, .adv-grid, .mat-grid, .case-grid { gap: 16px; }
  .svc-img { height: 170px; }
  .svc-body { padding: 18px; }
  .svc-body h3 { font-size: 17.5px; }
  .svc-body p { min-height: 0; margin-bottom: 10px; }
  .adv-item { padding: 24px 18px; }
  .adv-icon { width: 52px; height: 52px; margin-bottom: 14px; }
  .adv-icon .icon { width: 24px; height: 24px; }
  .mat-card { padding: 20px 18px; }
  .mat-card h3 { font-size: 16.5px; margin-bottom: 14px; }
  .case-img { height: auto; aspect-ratio: 16 / 10; }
  .case-img img { height: 100%; }
  .case-body { padding: 18px; }
  .step-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .step-item { padding: 20px 10px 18px; }
  .step-num { width: 40px; height: 40px; font-size: 16px; margin-bottom: 10px; }
  .step-item h3 { font-size: 14.5px; }
  .step-item p { font-size: 12px; }
  .area-wrap { padding: 22px 18px; }
  .area-tag { font-size: 12.5px; padding: 5px 12px; }
  .area-text { font-size: 13.5px; line-height: 1.8; }

  /* 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: 24px; }
  .stat-item span { font-size: 12px; }

  /* 富文本 */
  .rich-content { padding: 22px 18px; font-size: 15px; }
  .rich-content h2 { font-size: 18.5px; margin: 24px 0 12px; padding-left: 12px; }
  .rich-content h3 { font-size: 16px; margin: 18px 0 8px; }
  .rich-content table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .rich-content th, .rich-content td { font-size: 13px; padding: 8px 10px; white-space: nowrap; }
  .article { padding: 22px 18px; }
  .article h1 { font-size: 22px; }
  .article h2 { font-size: 19px; margin: 22px 0 12px; }
  .article h3 { font-size: 16.5px; }
  .article p { font-size: 14.5px; }

  /* 联系我们 */
  .contact-wrap { grid-template-columns: 1fr; gap: 22px; }
  .contact-wrap .contact-info { padding: 22px 18px; }
  .contact-t { font-size: 19px; margin-bottom: 16px; }
  .ci-card { padding: 14px 0; }
  .ci-card p { font-size: 15.5px; }
  .ci-qr { width: 140px; }
  .contact-form-wrap { padding: 22px 18px; }
  .contact-sub { margin: -8px 0 18px; font-size: 12.5px; }
  .form-row { grid-template-columns: 1fr; gap: 0; margin-bottom: 0; }
  .form-item { margin-bottom: 16px; }
  .form-item label { font-size: 12.5px; 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; }

  /* 新闻 */
  .news-grid { grid-template-columns: 1fr; gap: 16px; }
  .news-card { grid-template-columns: 1fr; gap: 12px; padding: 12px; }
  .news-img { height: auto; aspect-ratio: 16 / 9; }
  .news-body h3 { font-size: 15.5px; -webkit-line-clamp: 2; }
  .news-body p { font-size: 13px; -webkit-line-clamp: 3; }
  .pager { flex-wrap: wrap; gap: 6px; padding: 24px 0; }
  .pager .pg { min-width: 42px; height: 42px; padding: 0 12px; }

  /* 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: 11px 12px; font-size: 14px; }
  .side-link:hover { padding-left: 14px; }
  .side-phone { font-size: 19px; }
  .detail-main { padding: 22px 16px; }
  .news-detail-wrap .detail-main { padding: 22px 16px; }
  .news-detail-wrap .rich-content { font-size: 15px; }
  .detail-title { font-size: 20px; padding-bottom: 12px; margin-bottom: 16px; }
  .detail-cover { margin-bottom: 18px; }
  .news-info { gap: 12px; font-size: 12.5px; margin-bottom: 18px; }
  .news-nav { gap: 10px; margin-top: 22px; font-size: 13.5px; }

  /* 内页横幅 / 面包屑 / CTA */
  .page-banner { padding: 34px 0; }
  .page-banner h1 { font-size: 22px; letter-spacing: 1px; }
  .page-banner p { font-size: 13px; }
  .breadcrumb { font-size: 12.5px; }
  .breadcrumb .container { min-height: 0; padding-top: 10px; padding-bottom: 10px; gap: 6px; }
  .cta-strip { padding: 36px 0; }
  .cta-inner { flex-direction: column; text-align: center; gap: 18px; }
  .cta-text h2 { font-size: 20px; letter-spacing: 1px; }
  .cta-text p { font-size: 13.5px; }
  .cta-btns { justify-content: center; width: 100%; }
  .cta-btns .btn { flex: 1 1 100%; }

  /* 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: 15px; }

  /* 页脚 */
  .footer { padding: 40px 26px; }
  .footer-row { grid-template-columns: 1fr; gap: 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; padding: 36px 0 26px; }
  .footer-logo strong { font-size: 18px; }
  .footer-col h4 { font-size: 14px; margin-bottom: 14px; }
  .footer-bottom { padding: 16px 0; font-size: 12px; line-height: 1.7; }

  /* 悬浮工具栏 */
  .float-bar { right: 10px; bottom: 74px; gap: 8px; }
  .float-bar .float-btn { width: 48px; height: 48px; font-size: 19px; }
  .float-bar .float-btn .icon { width: 18px; height: 18px; }
  .float-bar .float-btn span { font-size: 9.5px; }
  .float-pop { right: 68px; bottom: auto; top: 50%; transform: translateY(-50%); padding: 12px 18px; }
  .float-pop a { font-size: 18px; }

  /* 微信弹窗 */
  .modal-box { width: 100%; max-width: calc(100vw - 32px); padding: 26px 18px 22px; }
  .modal-box h3 { font-size: 17px; margin-bottom: 12px; }
  .modal-qr { width: 100%; max-width: 190px; height: auto; aspect-ratio: 1 / 1; }
  .modal-close { width: 40px; height: 40px; font-size: 26px; }
  .btn-copy { width: 100%; }

  /* 404 / Toast */
  .err-wrap { padding: 70px 20px; }
  .err-wrap h1 { font-size: 56px; letter-spacing: 2px; }
  .err-wrap h2 { font-size: 22px; }
  .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 { height: 340px; }
  .banner-content h2 { font-size: 21px; }
  .banner-content p { font-size: 13.5px; }
  .section { padding: 34px 0; }
  .section-svc { padding-top: 34px; }
  .section-head h2 { font-size: 20px; }
  .svc-grid, .adv-grid, .mat-grid, .case-grid { grid-template-columns: 1fr; }
  .logo-text strong { font-size: 16px; }
  .stat-item strong { font-size: 22px; }
  .detail-title { font-size: 19px; }
  .rich-content h2 { font-size: 18px; }
  .err-wrap h1 { font-size: 48px; }
}

/* ---------- 小屏手机 ≤480 ---------- */
@media (max-width: 480px) {
  .container { padding: 0 12px; }
  body { font-size: 14.5px; }
  .topbar-addr { display: none; }
  .logo-mark { width: 36px; height: 36px; font-size: 16px; }
  .logo-img { width: 36px; height: 36px; }
  .logo-text strong { font-size: 15px; }
  .header-inner { height: 58px; }
  .nav { max-height: calc(100vh - 58px); }
  .banner { height: 300px; }
  .banner-content { padding: 0 14px; }
  .banner-content h2 { font-size: 19px; }
  .banner-content p { font-size: 13px; margin-bottom: 14px; }
  .banner-tags { margin-bottom: 16px; }
  .section { padding: 30px 0; }
  .section-svc { padding-top: 30px; }
  .section-head h2 { font-size: 19px; }
  .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: 11.5px; line-height: 1.6; }
  .adv-item { padding: 20px 14px; }
  .adv-icon { width: 46px; height: 46px; }
  .mat-card { padding: 18px 14px; }
  .svc-body { padding: 16px; }
  .case-body { padding: 16px; }
  .about-stats { gap: 10px; }
  .stat-item { padding: 16px 6px; }
  .stat-item strong { font-size: 21px; }
  .stat-item span { font-size: 11.5px; }
  .rich-content { padding: 18px 14px; }
  .article { padding: 18px 14px; }
  .article h1 { font-size: 20px; }
  .contact-wrap .contact-info { padding: 18px 14px; }
  .contact-form-wrap { padding: 18px 14px; }
  .ci-qr { width: 130px; }
  .news-card { padding: 10px; }
  .detail-main, .news-detail-wrap .detail-main { padding: 18px 14px; }
  .detail-title { font-size: 18px; }
  .side-box { padding: 16px; }
  .side-link { font-size: 13.5px; padding: 10px; }
  .page-banner { padding: 28px 0; }
  .page-banner h1 { font-size: 20px; }
  .cta-text h2 { font-size: 18px; }
  .cta-btns { flex-direction: column; }
  .float-bar { right: 8px; bottom: 66px; }
  .float-bar .float-btn { width: 56px; height: 44px; font-size: 17px; }
  .float-bar .float-btn span { font-size: 9px; }
  .float-pop { right: 60px; padding: 12px 14px; }
  .modal-box { padding: 22px 14px 18px; }
  .err-wrap { padding: 56px 16px; }
  .err-wrap h1 { font-size: 42px; }
  .footer-grid { gap: 20px; padding: 30px 0 22px; }
}

/* ---------- 超小屏 ≤380 ---------- */
@media (max-width: 380px) {
  .container { padding: 0 10px; }
  .logo-text strong { font-size: 14px; }
  .banner { 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: 15.5px; }
  .nav-item > a { font-size: 15.5px; }
  .err-wrap h1 { font-size: 36px; }
}

/* ---------- 手机横屏（高度很小时） ---------- */
@media (max-height: 480px) and (orientation: landscape) {
  .nav { max-height: calc(100vh - 50px); }
  .banner { height: 260px; }
  .banner-content h2 { font-size: 19px; }
  .banner-tags { display: none; }
  .section { padding: 28px 0; }
  .float-bar { bottom: 12px; gap: 6px; }
  .float-bar .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, .mat-card:hover,
  .step-item:hover, .stat-item:hover, .news-card:hover { transform: none; }
  .svc-card:hover .svc-img img, .case-card:hover .case-img img,
  .news-card:hover .news-img img { transform: none; }
  .float-bar .float-btn:hover, .nav-phone:hover { transform: none; }
  .btn:hover { transform: none; }
}

/* ---------- 大屏 ---------- */
@media (min-width: 1440px) {
  .container { max-width: 1280px; }
  .banner-content h2 { font-size: 50px; }
  .section-head h2 { font-size: 34px; }
}

/* ---------- 减少动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}