/* ============================================================
   上海精远诚企业管理咨询有限公司 官网样式
   风格：传统企业站 / 平面 / 白底蓝色块（参考 elitebond.cn）
   字体：思源黑体 / 微软雅黑   正文 14px   区块标题 34px
   ============================================================ */

:root {
  --blue: #0b5394;        /* 主蓝 */
  --blue-2: #3d85c6;      /* 次蓝 */
  --blue-3: #609ee9;      /* 点缀浅蓝 */
  --blue-4: #9fc4f2;      /* 最浅蓝 */
  --blue-bg: #f6faff;     /* 浅蓝底 */
  --navy: #032a54;        /* 深蓝 */
  --dark: #444444;        /* 页脚深灰（同参考站） */
  --text: #333333;
  --gray: #666666;
  --gray-2: #888888;
  --gray-3: #989898;
  --line: #e9eef5;
  --white: #ffffff;
}

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

body {
  font-family: "Source Han Sans CN", "Source Han Sans SC", "Source Han Sans", "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  color: var(--text);
  line-height: 1.8;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ============ 顶部欢迎条 ============ */
.topbar {
  background: var(--blue-bg);
  border-bottom: 1px solid #e3ecf7;
  font-size: 12px;
  color: var(--gray);
}
.topbar-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 20px;
  height: 36px; display: flex; justify-content: space-between; align-items: center;
}
.topbar .tb-right span { margin-left: 22px; }
.topbar .tb-right .tb-icon { color: var(--blue-3); margin-right: 4px; }
.topbar a:hover { color: var(--blue); }

/* ============ 导航栏 ============ */
.navbar {
  background: var(--white);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 100;
}
.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 20px;
  height: 90px; display: flex; justify-content: flex-start; align-items: center;
}
/* 品牌区：Logo 图标 + 「精远诚咨询」+ 企业全称 */
.logo { display: flex; align-items: center; gap: 12px; }
.logo-img {
  display: block; width: 48px; height: 48px;
  object-fit: contain; flex: 0 0 auto;
}
.logo-txt { display: flex; flex-direction: column; justify-content: center; }
.logo-text {
  font-size: 22px; font-weight: bold; color: var(--text);
  line-height: 1.25; letter-spacing: 2px;
}
.logo-text::first-letter { color: var(--blue); }
.logo-sub {
  font-size: 11px; color: var(--gray-2); letter-spacing: 1px;
  line-height: 1.4; white-space: nowrap;
}
.nav-links { display: flex; margin-left: 44px; }
.nav-links a {
  display: block; padding: 0 22px;
  line-height: 89px; font-size: 16px; color: var(--text);
  white-space: nowrap;   /* 防止菜单文字被挤成竖排 */
  transition: color .2s;
}
.nav-links a:hover { color: var(--blue); }
/* 当前页：仅用主题色区分，不加粗、不加下划线（与参考站一致） */
.nav-links a.active { color: var(--blue); }

/* ---------- 导航下拉菜单（产品与服务） ---------- */
.nav-item { position: relative; }
.nav-drop {
  position: absolute; top: 90px; left: 0; min-width: 200px;
  background: var(--white);
  box-shadow: 0 6px 20px rgba(3, 42, 84, 0.13);
  display: none; flex-direction: column; z-index: 300;
  padding: 6px 0;
}
.nav-item:hover .nav-drop { display: flex; animation: navDropIn .15s ease-out; }
.nav-item.open .nav-drop { display: flex; }
@media (hover: none) {
  .nav-item:hover .nav-drop { display: none; }
  .nav-item.open .nav-drop { display: flex; }
}
.nav-drop a {
  line-height: 40px; font-size: 14px; padding: 0 22px;
  color: var(--gray);
  white-space: nowrap;
}
.nav-drop a:hover { background: #f4f8fd; color: var(--blue); }
@keyframes navDropIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* 锚点定位时避开吸顶导航 + 吸顶标题栏 */
.section-head[id] { scroll-margin-top: 168px; }

/* ---------- 产品标题栏（吸顶锁定，各标题始终存在） ---------- */
.svc-tabs {
  position: sticky; top: 90px; z-index: 95;
  background: var(--white);
  border-bottom: 1px solid var(--line);
  margin: 0 0 34px;
}
.svc-tabs-inner {
  display: flex; align-items: stretch;
  overflow-x: auto; -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.svc-tabs-inner::-webkit-scrollbar { display: none; }
.svc-tab {
  flex: 0 0 auto; display: block; padding: 0 17px;
  line-height: 54px; font-size: 15px; color: var(--text);
  border-bottom: 2px solid transparent;
  white-space: nowrap; transition: color .2s;
}
.svc-tab:hover { color: var(--blue); }
.svc-tab.on { color: var(--blue); border-bottom-color: var(--blue); }

/* 单显模式：只显示所选产品整块，6 个标题始终保留在上方标题栏中 */
.container.filtering .product-block { display: none; }
.container.filtering .product-block.on { display: block; }

.burger { display: none; background: none; border: none; cursor: pointer; padding: 6px; margin-left: auto; }
.burger span { display: block; width: 24px; height: 2px; background: var(--text); margin: 5px 0; }

/* ============ 首页横幅（纯图片轮播风格，无文字） ============ */
.banner-main {
  height: 560px;
  background-size: cover; background-position: center;
}

/* ============ 内页横幅（带标题） ============ */
.banner {
  position: relative;
  height: 260px;
  background-size: cover; background-position: center;
  display: flex; align-items: center;
}
.banner .banner-mask { position: absolute; inset: 0; background: rgba(2, 26, 54, 0.55); }
.banner-content { position: relative; color: var(--white); }
.banner-content h1 { font-size: 34px; font-weight: bold; line-height: 1.35; margin-bottom: 0; }
.banner-content .banner-sub {
  display: inline-block; font-size: 13px; letter-spacing: 4px;
  color: #cfe0f5; margin-bottom: 14px; border-bottom: 2px solid var(--blue-3); padding-bottom: 6px;
}
.banner-content p { font-size: 16px; color: #e2ecf8; max-width: 680px; }

/* ============ 按钮 ============ */
.btn {
  display: inline-block;
  background: var(--blue);
  color: var(--white) !important;
  font-size: 15px; line-height: 1;
  padding: 14px 38px;
  border-radius: 2px;
  transition: background .2s;
}
.btn:hover { background: var(--blue-2); }
.btn.blue-light { background: var(--blue-3); }
.btn.blue-light:hover { background: var(--blue); }

/* ============ 区块 ============ */
.section { padding: 66px 0; }
.section.bg-light { background: var(--blue-bg); }

.section-head { text-align: center; margin-bottom: 42px; }
.section-head .en {
  font-size: 14px; color: var(--gray-3); letter-spacing: 5px; text-transform: uppercase;
}
.section-head h2 {
  font-size: 34px; font-weight: bold; color: var(--text);
  margin-top: 4px; line-height: 1.4;
}
.section-head p { font-size: 14px; color: var(--gray-2); margin-top: 8px; }

/* ============ 公司简介（文字 + 图片） ============ */
.profile-cols { display: grid; grid-template-columns: 1fr 1.3fr; gap: 46px; align-items: center; }
.profile-text p {
  font-size: 14px; color: var(--gray);
  margin-bottom: 16px; text-align: justify; line-height: 2;
}
.profile-pic img { width: 100%; height: 360px; object-fit: cover; }

/* 愿景标语（混排大字，同参考站） */
.vision-line {
  text-align: center; font-size: 30px; font-weight: bold; color: var(--text);
  line-height: 1.6; margin-top: 56px;
}
.vision-line em {
  font-size: 48px; color: var(--blue); padding: 0 6px;
}
.vision-cn {
  text-align: center; font-size: 22px; color: var(--blue); font-weight: bold;
  margin-top: 10px; letter-spacing: 2px;
}
.vision-en {
  text-align: center; font-size: 13px; color: var(--gray-3);
  margin-top: 14px; letter-spacing: 1px;
}

/* ============ 产品服务（大色块卡片，同参考站） ============ */
.block-title {
  text-align: center; font-size: 40px; font-weight: bold; color: var(--text);
  margin-bottom: 46px; line-height: 1.4;
}
.block-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.block-card {
  height: 420px;
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  text-align: center; padding: 30px 26px;
  transition: opacity .2s;
}
.block-card:hover { opacity: .88; }
.block-card h3 {
  font-size: 34px; font-weight: bold; color: var(--white);
  line-height: 1.5; letter-spacing: 2px;
}
.block-card .bc-btn {
  margin-top: 46px;
  display: inline-block;
  border: 1px solid rgba(255,255,255,.85);
  color: var(--white);
  font-size: 14px; line-height: 1;
  padding: 12px 36px;
  transition: all .2s;
}
.block-card .bc-btn:hover { background: var(--white); color: var(--blue); }
.bg-blue-1 { background: var(--blue); }
.bg-blue-2 { background: var(--blue-2); }
.bg-blue-3 { background: var(--blue-3); }
.bg-blue-4 { background: var(--blue-4); }
.bg-blue-4 h3 { color: var(--navy); }
.bg-blue-4 .bc-btn { border-color: var(--navy); color: var(--navy); }
.bc-photo {
  background-size: cover; background-position: center;
  position: relative;
}
.bc-photo::before {
  content: ""; position: absolute; inset: 0;
  background: rgba(61, 133, 198, 0.72);
}
.bc-photo h3, .bc-photo .bc-btn { position: relative; z-index: 1; }

/* ============ 数据亮点（浅蓝底 + 白色边框卡） ============ */
.stats-light { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; text-align: center; }
.stats-light .stat-item {
  background: var(--white); border: 1px solid var(--line); border-top: 3px solid var(--blue-3);
  padding: 30px 10px 26px;
}
.stats-light .num {
  font-size: 48px; font-weight: bold; color: var(--blue); line-height: 1.2;
  font-family: Arial, "Source Han Sans CN", sans-serif;
}
.stats-light .num em { color: var(--blue-3); font-size: 30px; }
.stats-light .label { font-size: 16px; color: var(--gray); margin-top: 10px; }

/* ============ 我们承诺（白底，同参考站） ============ */
.promise { text-align: center; }
.promise .en { font-size: 14px; color: var(--gray-3); letter-spacing: 5px; }
.promise h2 { font-size: 34px; font-weight: bold; color: var(--text); margin-top: 4px; }
.promise-lead { font-size: 24px; color: var(--text); margin: 26px 0 22px; font-weight: bold; }
.promise-lead b { color: var(--blue); }
.promise-guarantee {
  display: inline-block; font-size: 34px; font-weight: bold; color: var(--blue);
  border: 2px solid var(--blue); padding: 10px 44px; letter-spacing: 4px;
}
.promise .btn { margin-top: 34px; }

/* ============ 新闻资讯（文字在前小图卡片，同参考站） ============ */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  display: block; padding: 20px 22px 18px;
  background: var(--white); border: 1px solid var(--line);
  transition: border-color .2s;
}
.news-card:hover { border-color: var(--blue-3); }
.news-card .nc-excerpt {
  font-size: 14px; color: var(--gray-2);
  height: 92px; overflow: hidden; text-align: justify; line-height: 1.9;
}
.news-card .nc-bottom { display: flex; gap: 14px; align-items: center; }
.news-card .nc-img { flex: 0 0 88px; width: 88px; height: 88px; overflow: hidden; }
.news-card .nc-img img { width: 88px; height: 88px; object-fit: cover; }
.news-card .nc-info h3 {
  font-size: 17px; font-weight: bold; color: var(--text);
  line-height: 1.5; margin-bottom: 6px;
}
.news-card:hover .nc-info h3 { color: var(--blue); }
.news-card .nc-date { font-size: 14px; color: var(--blue-3); }
.news-all { text-align: center; margin-top: 46px; }
.news-all .btn { padding: 11px 42px; font-size: 14px; }

/* ============ 页脚（深灰，同参考站） ============ */
.footer { background: var(--dark); color: #cccccc; font-size: 13px; }
.footer-top { padding: 54px 0 36px; display: grid; grid-template-columns: 2fr 1fr 1fr 1.3fr; gap: 46px; }
.footer .f-logo-text {
  display: inline-block; color: var(--white); font-size: 20px; font-weight: bold;
  letter-spacing: 2px; border-left: 4px solid var(--blue-3); padding-left: 12px; line-height: 1.3;
}
.footer .f-about p { margin-top: 16px; color: #a8a8a8; line-height: 2; }
.footer h4 { color: var(--white); font-size: 16px; font-weight: bold; margin-bottom: 18px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: #a8a8a8; }
.footer-links a:hover { color: var(--white); }
.footer-contact li {
  display: flex; align-items: flex-start; color: #a8a8a8; margin-bottom: 12px;
}
.footer-contact .fc-icon { color: var(--blue-3); margin-right: 10px; line-height: 1.9; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 18px 0; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
  font-size: 12px; color: #8c8c8c;
}
.footer-bottom a { color: #8c8c8c; }
.footer-bottom a:hover { color: var(--white); }
.footer-bottom .beian a { margin-left: 6px; }

/* 关于页简介排版 */
.profile-wrap { max-width: 1000px; margin: 0 auto; }
.profile-wrap .profile-text p {
  font-size: 14px; color: var(--gray);
  margin-bottom: 16px; text-align: justify; line-height: 2; text-indent: 2em;
}
.profile-wrap .profile-text p strong { color: var(--blue); }
.profile-points { margin-top: 26px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.profile-points li { border-left: 3px solid var(--blue-3); padding-left: 14px; }
.profile-points li b { display: block; font-size: 15px; color: var(--blue); }
.profile-points li span { font-size: 13px; color: var(--gray-2); }

/* 表单成功提示 */
.form-ok { display: none; }

/* ============ 回到顶部 ============ */
.totop {
  position: fixed; right: 24px; bottom: 40px; z-index: 90;
  width: 44px; height: 44px; line-height: 44px; text-align: center;
  background: var(--blue); color: var(--white); font-size: 18px;
  opacity: 0; visibility: hidden; transition: opacity .25s, visibility .25s, background .2s;
}
.totop.show { opacity: 1; visibility: visible; }
.totop:hover { background: var(--blue-2); }

/* ============ 通用：内页内容 ============ */
.page-body { padding: 52px 0 66px; }
.page-body h3.sub-title {
  font-size: 22px; color: var(--blue); font-weight: bold;
  margin: 34px 0 14px; padding-left: 12px; border-left: 4px solid var(--blue-3);
}
.page-body h3.sub-title:first-child { margin-top: 0; }
.page-body .sub-desc { font-size: 14px; color: var(--gray-2); margin-bottom: 10px; }

/* 正文段落 */
.para { font-size: 14px; color: var(--gray); text-indent: 2em; text-align: justify; margin-bottom: 14px; line-height: 2; }
.para b { color: var(--blue); }

/* 服务卡片（内页） */
.svc-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 10px; }
.svc-card { border: 1px solid var(--line); background: var(--white); padding: 26px 28px; }
.svc-card h4 { font-size: 17px; color: var(--blue); margin-bottom: 10px; }
.svc-card p { font-size: 14px; color: var(--gray); }
.svc-card ul { margin-top: 10px; }
.svc-card ul li { font-size: 13px; color: var(--gray-2); padding-left: 16px; position: relative; margin-bottom: 6px; }
.svc-card ul li::before { content: ""; position: absolute; left: 0; top: 9px; width: 6px; height: 6px; background: var(--blue-3); }

/* 章节编号式（服务页） */
.chapter { margin-bottom: 40px; }
.chapter-title { display: flex; align-items: baseline; gap: 14px; margin-bottom: 14px; }
.chapter-no {
  font-size: 26px; font-weight: bold; color: var(--blue-3); font-family: Georgia, "Times New Roman", serif;
}
.chapter-title h3 { font-size: 22px; color: var(--text); font-weight: bold; }
.ch-note {
  background: var(--blue-bg); border-left: 4px solid var(--blue-3);
  padding: 14px 18px; font-size: 14px; color: var(--gray); margin: 14px 0;
}
.num-list { margin-top: 8px; }
.num-list li {
  display: flex; gap: 12px; font-size: 14px; color: var(--gray); margin-bottom: 10px;
}
.num-list li .nl-no {
  flex: 0 0 auto; width: 22px; height: 22px; line-height: 22px; text-align: center;
  background: var(--blue); color: var(--white); font-size: 12px; border-radius: 2px;
}
.impl-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 12px; }
.impl-steps .step { border: 1px solid var(--line); padding: 18px 16px; text-align: center; }
.impl-steps .step .step-no { font-size: 20px; font-weight: bold; color: var(--blue-3); font-family: Georgia, serif; }
.impl-steps .step .step-name { font-size: 14px; color: var(--text); font-weight: bold; margin-top: 6px; }
.impl-steps .step p { font-size: 12px; color: var(--gray-2); margin-top: 6px; }

/* 联系页 */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; margin-top: 8px; }
.contact-item { display: flex; align-items: flex-start; padding: 18px 0; border-bottom: 1px dashed var(--line); }
.contact-item .ci-icon {
  width: 42px; height: 42px; background: var(--blue-bg); color: var(--blue);
  display: flex; align-items: center; justify-content: center; margin-right: 16px; flex: 0 0 auto;
}
.contact-item b { font-size: 15px; color: var(--text); display: block; }
.contact-item span { font-size: 14px; color: var(--gray-2); }
.form-box { border: 1px solid var(--line); background: var(--blue-bg); padding: 30px 32px; }
.form-box h4 { font-size: 18px; color: var(--blue); margin-bottom: 6px; }
.form-box .form-tip { font-size: 13px; color: var(--gray-2); margin-bottom: 20px; }
.form-box label { display: block; font-size: 13px; color: var(--gray); margin-bottom: 4px; }
.form-box input, .form-box textarea {
  width: 100%; border: 1px solid #d8e2ef; background: var(--white);
  padding: 10px 12px; font-size: 14px; font-family: inherit; margin-bottom: 16px; color: var(--text);
  border-radius: 0; outline: none;
}
.form-box input:focus, .form-box textarea:focus { border-color: var(--blue-3); }
.form-box textarea { height: 110px; resize: vertical; }
.form-box .btn { border: none; cursor: pointer; width: 100%; }

/* 关于页图片区 */
.about-visual { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin: 26px 0 8px; }
.about-visual .av-item { position: relative; overflow: hidden; }
.about-visual img { width: 100%; height: 250px; object-fit: cover; }
.about-visual .av-cap {
  position: absolute; left: 0; right: 0; bottom: 0;
  background: rgba(3, 42, 84, 0.72); color: var(--white);
  font-size: 13px; text-align: center; padding: 6px 10px;
}

/* ============ 标杆案例卡片 ============ */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card {
  display: block; background: var(--white); border: 1px solid var(--line);
  transition: border-color .2s;
}
.case-card:hover { border-color: var(--blue-3); }
.case-card:hover .case-body h3 { color: var(--blue); }
.case-img { position: relative; overflow: hidden; }
.case-img img { width: 100%; height: 210px; object-fit: cover; }
.case-tag {
  position: absolute; left: 0; bottom: 0;
  background: var(--blue); color: var(--white);
  font-size: 12px; padding: 4px 12px;
}
.case-body { padding: 18px 20px 20px; }
.case-body h3 { font-size: 17px; font-weight: bold; color: var(--text); line-height: 1.5; }
.case-body p { font-size: 13px; color: var(--gray-2); line-height: 1.8; margin-top: 8px; }
.case-res {
  display: flex; gap: 20px; margin-top: 14px; padding-top: 12px;
  border-top: 1px solid var(--line);
}
.case-res span { font-size: 12px; color: var(--gray-2); }
.case-res b { display: block; font-size: 16px; color: var(--blue); margin-top: 2px; }
.case-note { text-align: center; margin-top: 46px; }
.case-note p { font-size: 13px; color: var(--gray-3); margin-bottom: 18px; }

/* ============ 合作方式卡片（合作联系页） ============ */
.coop-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-bottom: 50px; }
.coop-card { border: 1px solid var(--line); border-top: 3px solid var(--blue-3); padding: 22px 20px; }
.coop-card b { display: block; font-size: 16px; color: var(--blue); margin-bottom: 8px; }
.coop-card p { font-size: 13px; color: var(--gray-2); line-height: 1.8; }

/* ============ 加入我们 ============ */
.welfare-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-bottom: 46px; }
.welfare-card { background: var(--blue-bg); padding: 24px 20px; }
.welfare-card b { display: block; font-size: 16px; color: var(--text); margin-bottom: 8px; }
.welfare-card p { font-size: 13px; color: var(--gray-2); line-height: 1.8; }
.job-list { margin-top: 4px; }
.job-item {
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  border: 1px solid var(--line); padding: 20px 24px; margin-bottom: 14px;
  transition: border-color .2s;
}
.job-item:hover { border-color: var(--blue-3); }
.job-main h4 { font-size: 16px; color: var(--text); }
.job-main h4:hover { color: var(--blue); }
.job-main p { font-size: 13px; color: var(--gray-2); margin-top: 6px; line-height: 1.7; }
.job-tags { margin-top: 8px; }
.job-tags span {
  display: inline-block; font-size: 12px; color: var(--blue);
  background: var(--blue-bg); border: 1px solid #d8e6f7;
  padding: 2px 10px; margin-right: 8px;
}
.job-side { text-align: right; flex: 0 0 auto; }
.job-side b { display: block; font-size: 16px; color: var(--blue); }
.job-side span { font-size: 12px; color: var(--gray-3); }
.join-cta {
  margin-top: 40px; border: 1px solid var(--line); background: var(--blue-bg);
  padding: 30px 34px; text-align: center;
}
.join-cta h3 { font-size: 20px; color: var(--text); margin-bottom: 12px; }
.join-cta p { font-size: 14px; color: var(--gray); line-height: 2; }
.join-cta a { color: var(--blue); text-decoration: underline; }

/* ============ 常见问题 FAQ ============ */
.section-faq { background: var(--blue-bg); }
.section[id] { scroll-margin-top: 100px; }  /* 锚点跳转避开 91px 吸顶导航 */
.faq-list { max-width: 900px; margin: 0 auto; }

.faq-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue-4);
  margin-bottom: 12px;
  transition: border-color .25s, box-shadow .25s;
}
.faq-item[open] {
  border-left-color: var(--blue);
  box-shadow: 0 6px 20px rgba(11, 83, 148, .07);
}

.faq-item summary {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 18px 20px; cursor: pointer;
  list-style: none; outline: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::marker { content: ""; }
.faq-item summary:hover .faq-title { color: var(--blue); }

.faq-q {
  flex: 0 0 auto; width: 22px; height: 22px; line-height: 22px;
  text-align: center; margin-top: 3px;
  background: var(--blue); color: var(--white);
  font-size: 13px; font-weight: bold; font-family: Georgia, serif;
}
.faq-title {
  flex: 1; font-size: 15px; font-weight: bold; color: var(--text);
  line-height: 1.7; transition: color .2s;
}

/* 加号 → 减号（纯 CSS，无字体依赖） */
.faq-arrow { flex: 0 0 auto; position: relative; width: 14px; height: 14px; margin-top: 7px; }
.faq-arrow::before, .faq-arrow::after {
  content: ""; position: absolute; background: var(--blue-2);
  transition: transform .25s, opacity .25s;
}
.faq-arrow::before { left: 0; top: 6px; width: 14px; height: 2px; }
.faq-arrow::after { left: 6px; top: 0; width: 2px; height: 14px; }
.faq-item[open] .faq-arrow::after { transform: rotate(90deg); opacity: 0; }
.faq-item[open] .faq-arrow::before { background: var(--blue); }

.faq-body { padding: 0 20px 20px 54px; }
.faq-body p {
  font-size: 14px; color: var(--gray); line-height: 2; text-align: justify;
}
.faq-body p + p { margin-top: 10px; }
.faq-body b { color: var(--text); }

.faq-more {
  max-width: 900px; margin: 26px auto 0; text-align: center;
  font-size: 14px; color: var(--gray-2);
}
.faq-more a { color: var(--blue); font-weight: bold; }
.faq-more a:hover { text-decoration: underline; }

/* ============ 响应式 ============ */
/* 中等宽度：收紧菜单间距，保证品牌区变宽后导航仍能一行排下 */
@media (max-width: 1100px) {
  .nav-links a { padding: 0 15px; }
  .logo-sub { letter-spacing: 0; }
}

@media (max-width: 992px) {
  .news-grid, .case-grid { grid-template-columns: repeat(2, 1fr); }
  .block-grid { grid-template-columns: repeat(2, 1fr); }
  .coop-grid, .welfare-grid { grid-template-columns: repeat(2, 1fr); }
  .profile-cols { grid-template-columns: 1fr; }
  .profile-pic img { height: 260px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .impl-steps { grid-template-columns: repeat(2, 1fr); }
  .svc-cards { grid-template-columns: 1fr; }
  .stats-light { grid-template-columns: repeat(2, 1fr); }
  .about-visual { grid-template-columns: 1fr; }
  .banner-main { height: 420px; }
  .promise-guarantee { font-size: 26px; padding: 8px 26px; }
}

/* 品牌区含企业全称后，900px 以下横向排不下 → 导航折叠为汉堡菜单 */
@media (max-width: 900px) {
  .logo { gap: 9px; }
  .logo-img { width: 38px; height: 38px; }
  .logo-text { font-size: 17px; letter-spacing: 1px; }
  .logo-sub { font-size: 9px; letter-spacing: 0; }
  .burger { display: block; }
  .nav-links {
    display: none; position: absolute; top: 90px; left: 0; right: 0;
    background: var(--white); border-bottom: 1px solid var(--line); flex-direction: column;
    margin-left: 0;
  }
  .nav-links.open { display: flex; }
  .nav-links a { line-height: 52px; padding: 0 24px; border-bottom: 1px solid #f2f5fa; border-left: 3px solid transparent; }
  .nav-links a.active { color: var(--blue); border-left-color: var(--blue-3); border-bottom-color: transparent; }
  .navbar { position: relative; }
  .svc-tabs { top: 0; }
  .section-head[id] { scroll-margin-top: 72px; }
  .nav-drop {
    position: static; display: none; box-shadow: none;
    padding: 0; min-width: 0;
  }
  .nav-item.open .nav-drop { display: block; }
  .nav-drop a { line-height: 44px; padding: 0 24px 0 44px; color: var(--gray-2); }
  .nav-drop a:last-child { border-bottom: 1px solid #f2f5fa; }
}

@media (max-width: 640px) {
  .topbar .tb-left { display: none; }
  .topbar-inner { justify-content: flex-end; }
  .svc-tab { padding: 0 13px; line-height: 48px; font-size: 14px; }
  .news-grid, .block-grid, .case-grid { grid-template-columns: 1fr; }
  .coop-grid, .welfare-grid { grid-template-columns: 1fr; }
  .job-item { flex-direction: column; align-items: flex-start; }
  .job-side { text-align: left; }
  .block-card { height: 340px; }
  .block-card h3 { font-size: 28px; }
  .footer-top { grid-template-columns: 1fr; }
  .banner-main { height: 300px; }
  .vision-line { font-size: 22px; }
  .vision-line em { font-size: 34px; }
  .promise-lead { font-size: 18px; }
  .promise-guarantee { font-size: 20px; letter-spacing: 2px; }
  /* FAQ 移动端：收紧内边距，Q 标缩小 */
  .faq-item summary { padding: 15px 14px; gap: 10px; }
  .faq-title { font-size: 14px; line-height: 1.65; }
  .faq-body { padding: 0 14px 16px 46px; }
  .faq-body p { text-align: left; }
  .section-faq .section-head h2 { font-size: 26px; }
}

/* ============ 资讯列表页 ============ */
.news-card .nc-cat {
  display: inline-block; font-size: 12px; color: var(--blue);
  background: var(--blue-bg); padding: 2px 10px; margin-bottom: 10px;
}

/* 面包屑 */
.crumb { font-size: 13px; color: var(--gray-2); margin-bottom: 28px; }
.crumb a { color: var(--gray-2); }
.crumb a:hover { color: var(--blue); }
.crumb i { margin: 0 8px; color: var(--blue-4); font-style: normal; }
.crumb span { color: var(--gray-3); }

/* ============ 文章详情页 ============ */
.article-wrap { max-width: 880px; margin: 0 auto; }
.article-meta {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px;
  padding-bottom: 20px; border-bottom: 1px solid var(--line);
  font-size: 13px; color: var(--gray-2);
}
.article-meta .am-tag { background: var(--blue); color: var(--white); padding: 3px 12px; }

.article-body { font-size: 15px; line-height: 2.05; color: var(--text); padding-top: 26px; }
.article-body > p { margin-bottom: 18px; text-align: justify; }
.article-body > p.lead {
  font-size: 15px; color: var(--gray); background: var(--blue-bg);
  border-left: 4px solid var(--blue-3); padding: 16px 20px; text-align: justify;
}
.article-body h2 {
  font-size: 20px; font-weight: bold; color: var(--navy); line-height: 1.6;
  margin: 36px 0 14px; padding-left: 12px; border-left: 4px solid var(--blue-3);
}
.article-body h3 { font-size: 16px; font-weight: bold; color: var(--blue); margin: 24px 0 10px; }
.article-body ul, .article-body ol { margin: 0 0 18px; }
.article-body ul li { position: relative; padding-left: 18px; margin-bottom: 9px; color: var(--gray); }
.article-body ul li::before {
  content: ""; position: absolute; left: 0; top: 13px; width: 6px; height: 6px; background: var(--blue-3);
}
.article-body ol { counter-reset: ai; }
.article-body ol li { position: relative; padding-left: 32px; margin-bottom: 12px; color: var(--gray); }
.article-body ol li::before {
  counter-increment: ai; content: counter(ai);
  position: absolute; left: 0; top: 6px; width: 20px; height: 20px; line-height: 20px;
  text-align: center; background: var(--blue); color: var(--white); font-size: 12px;
}
.article-body b, .article-body strong { color: var(--navy); }
.article-body a { color: var(--blue); border-bottom: 1px solid var(--blue-4); }
.article-body a:hover { border-bottom-color: var(--blue); }

.article-body table { width: 100%; border-collapse: collapse; margin: 10px 0 22px; font-size: 14px; }
.article-body th, .article-body td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; }
.article-body th { background: var(--blue); color: var(--white); font-weight: normal; }
.article-body tbody tr:nth-child(even) { background: var(--blue-bg); }
.article-body td b { color: var(--blue); }
.table-scroll { overflow-x: auto; margin-bottom: 6px; }

.article-tip {
  background: var(--blue-bg); border-left: 4px solid var(--blue-3);
  padding: 16px 20px; margin: 22px 0; font-size: 14px; color: var(--gray); line-height: 2;
}
.article-tip .at-title { display: block; font-weight: bold; color: var(--blue); margin-bottom: 4px; }

.article-figure { margin: 4px 0 26px; }
.article-figure img { width: 100%; max-height: 400px; object-fit: cover; }
.article-figure figcaption { font-size: 12px; color: var(--gray-3); margin-top: 8px; text-align: center; }

.article-cta { margin-top: 42px; padding: 28px 30px; background: var(--blue-bg); text-align: center; }
.article-cta h3 { font-size: 18px; color: var(--navy); margin-bottom: 8px; }
.article-cta p { font-size: 14px; color: var(--gray-2); margin-bottom: 18px; }

.article-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 26px; }
.article-nav a { border: 1px solid var(--line); padding: 14px 16px; font-size: 14px; color: var(--gray); }
.article-nav a:hover { border-color: var(--blue-3); color: var(--blue); }
.article-nav .an-label { display: block; font-size: 12px; color: var(--gray-3); margin-bottom: 4px; }
.article-nav .an-next { text-align: right; }

@media (max-width: 640px) {
  .article-body { font-size: 14px; line-height: 2; }
  .article-body h2 { font-size: 18px; }
  .article-body > p.lead { padding: 14px 16px; }
  .article-nav { grid-template-columns: 1fr; }
  .article-nav .an-next { text-align: left; }
  .article-cta { padding: 22px 18px; }
}