/* ============================================================
   三富科技 前台 公共样式
   ============================================================ */
:root {
  --primary: #2b7de9;
  --primary-dark: #1c5fbe;
  --primary-light: #eaf2fd;
  --accent: #12b76a;
  --text: #1f2937;
  --text-light: #6b7280;
  --border: #e5e7eb;
  --bg-gray: #f7f9fc;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(31, 45, 61, 0.08);
  --shadow-lg: 0 12px 40px rgba(31, 45, 61, 0.14);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.7;
  font-size: 15px;
}
img { max-width: 100%; vertical-align: middle; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
ul, ol { list-style: none; }
.container { max-width: 1360px; margin: 0 auto; padding: 0 24px; }

/* ============ 顶部导航 ============ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(229,231,235,0.7);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; color: var(--text); }
.logo svg { width: 34px; height: 34px; }
.logo .site-name { color: var(--primary); }
.main-nav { display: flex; gap: 6px; }
.main-nav a {
  padding: 8px 15px; border-radius: 8px;
  color: var(--text); font-size: 15px; transition: all .2s;
}
.main-nav a:hover { background: var(--primary-light); color: var(--primary); }
.main-nav a.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }

/* ===== 二级下拉导航 ===== */
.main-nav .nav-item { position: relative; }
.main-nav .nav-item > a {
  display: flex; align-items: center; gap: 4px;
  padding: 8px 15px; border-radius: 8px;
  color: var(--text); font-size: 15px; transition: all .2s;
}
.main-nav .nav-item > a:hover { background: var(--primary-light); color: var(--primary); }
.main-nav .nav-item > a.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }
.main-nav .caret { flex-shrink: 0; color: var(--primary); transition: transform .2s; }
.main-nav .nav-item:hover .caret { transform: rotate(180deg); }
.main-nav .dropdown {
  position: absolute; top: 100%; left: 0; min-width: 190px;
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  box-shadow: var(--shadow-lg); padding: 8px; z-index: 120;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: all .22s ease;
}
.main-nav .nav-item:hover .dropdown,
.main-nav .nav-item:focus-within .dropdown {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.main-nav .dropdown a {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 14px; border-radius: 8px;
  color: var(--text); font-size: 14px; transition: all .15s;
}
.main-nav .dropdown a:hover { background: var(--primary-light); color: var(--primary); }
.main-nav .dropdown a.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }
.main-nav .dropdown .dropdown-all {
  margin-top: 4px; border-top: 1px solid var(--border); padding-top: 8px;
  color: var(--primary); font-weight: 600;
}
.nav-toggle {
  display: none; background: none; border: 1px solid var(--border);
  border-radius: 8px; padding: 6px 10px; cursor: pointer; color: var(--text);
}
@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .main-nav {
    position: absolute; top: 66px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow); flex-direction: column; padding: 12px;
    display: none;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 15px; }
  /* 移动端二级导航展开为列表 */
  .main-nav .nav-item { width: 100%; }
  .main-nav .nav-item > a { width: 100%; padding: 12px 15px; }
  .main-nav .dropdown {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: none; border-left: 2px solid var(--primary-light);
    border-radius: 0; padding: 4px 0 4px 10px; margin: 0 0 4px 8px;
    min-width: 0; display: none;
  }
  .main-nav .nav-item.open .dropdown { display: block; }
  .main-nav .dropdown a { padding: 10px 14px; }
}

/* ============ 页脚 ============ */
.site-footer { background: #0e1c3a; color: #b9c6e0; margin-top: 60px; }
.footer-top { padding: 44px 0 24px; display: grid; grid-template-columns: 2fr 1.2fr 1.2fr 1.4fr; gap: 36px; }
.footer-top h4 { color: #fff; font-size: 16px; margin-bottom: 16px; }
.footer-top p { font-size: 14px; line-height: 1.8; }
.footer-top .links a { display: block; color: #b9c6e0; font-size: 14px; padding: 4px 0; }
.footer-top .links a:hover { color: #fff; }
.footer-contact li { display: flex; gap: 10px; font-size: 14px; padding: 6px 0; color: #b9c6e0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 18px 0; font-size: 13px; color: #8fa0c0; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.footer-bottom a { color: #8fa0c0; text-decoration: none; }
.footer-bottom a:hover { color: #fff; text-decoration: underline; }
@media (max-width: 900px) { .footer-top { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-top { grid-template-columns: 1fr; } }

/* ============ 通用区块 ============ */
.section { padding: 64px 0; }
.section-gray { background: #f7f9fc; }
.section-head { text-align: center; margin-bottom: 44px; }
.section-head h2 { font-size: 30px; font-weight: 700; }
.section-head .sub { color: var(--text-light); margin-top: 10px; font-size: 15px; }

/* ============ 按钮 ============ */
.btn {
  display: inline-block; padding: 11px 26px; border-radius: 8px;
  font-size: 15px; border: none; cursor: pointer; transition: all .2s;
  font-family: inherit;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-outline { background: transparent; border: 1.5px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary-light); }
.btn-sm { padding: 7px 16px; font-size: 13px; }

/* ============ 首页 Hero ============ */
.hero {
  background: linear-gradient(135deg, #eaf4fe 0%, #d6e9ff 60%, #c9e2ff 100%);
  padding: 72px 0 56px;
  position: relative; overflow: hidden;
}
.hero-inner { display: grid; grid-template-columns: 1.15fr 1fr; gap: 48px; align-items: center; }
.hero h1 { font-size: 40px; line-height: 1.3; font-weight: 700; }
.hero h1 em { font-style: normal; color: var(--primary); }
.hero .lead { color: #4b5563; font-size: 17px; margin: 20px 0 30px; max-width: 520px; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 44px; max-width: 520px; }
.hero-stats .stat {
  background: rgba(255,255,255,0.72); backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.9); border-radius: 14px; padding: 16px; text-align: center;
}
.hero-stats .stat b { font-size: 28px; color: var(--primary); display: block; }
.hero-stats .stat span { font-size: 13px; color: var(--text-light); }
.hero-visual {
  background: #fff; border-radius: 20px; box-shadow: var(--shadow-lg);
  padding: 30px; border: 1px solid var(--border);
}
.hero-visual h3 { font-size: 18px; margin-bottom: 20px; display: flex; align-items: center; gap: 8px; }
.hero-visual h3 svg { width: 22px; height: 22px; color: var(--primary); }
.hero-visual .row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 0; border-bottom: 1px dashed var(--border); font-size: 14px;
}
.hero-visual .row span { color: var(--text-light); }
.hero-visual .row b { color: var(--primary); }
.hero-visual .bar { height: 8px; border-radius: 4px; background: var(--primary-light); margin-top: 6px; overflow: hidden; }
.hero-visual .bar i { display: block; height: 100%; background: var(--primary); border-radius: 4px; }
/* 优势列表 */
.hero-visual .adv-list { display: flex; flex-direction: column; gap: 0; }
.hero-visual .adv-item {
  display: flex; align-items: center; gap: 10px; padding: 9px 0;
  border-bottom: 1px dashed var(--border); transition: all .2s;
}
.hero-visual .adv-item:last-child { border-bottom: none; }
.hero-visual .adv-item:hover { transform: translateX(4px); }
.hero-visual .adv-ic {
  width: 28px; height: 28px; flex-shrink: 0; border-radius: 7px;
  background: var(--primary-light); display: flex; align-items: center; justify-content: center;
}
.hero-visual .adv-ic svg { width: 15px; height: 15px; color: var(--primary); }
.hero-visual .adv-ic img { width: 15px; height: 15px; object-fit: contain; }
.hero-visual .adv-item > div:last-child { display: flex; flex-direction: column; }
.hero-visual .adv-item b { font-size: 14px; color: var(--text); margin-bottom: 1px; }
.hero-visual .adv-item span { font-size: 12px; color: var(--text-light); line-height: 1.4; }
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
  .hero-visual { display: none; }
}

/* ============ 业务卡片（首页） ============ */
.services-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 24px; }
.service-card {
  background: #fff; border: 1px solid var(--border); border-radius: 14px;
  padding: 28px; transition: all .25s; display: flex; flex-direction: column;
  position: relative; overflow: hidden;
  /* 宽度由 JS 按数量动态分配，默认 3 列 */
  width: calc((100% - 48px) / 3);
}
.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: transparent; }
.service-card .icon {
  width: 54px; height: 54px; border-radius: 14px; background: var(--primary-light);
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.service-card .icon svg { width: 28px; height: 28px; color: var(--primary); }
.service-card .icon img { width: 28px; height: 28px; object-fit: contain; }
.service-card h3 { font-size: 19px; margin-bottom: 10px; }
.service-card p { color: var(--text-light); font-size: 14px; flex: 1; }
.service-card .more { margin-top: 18px; font-size: 14px; font-weight: 600; display: flex; align-items: center; gap: 4px; }
.service-card .more svg { width: 16px; height: 16px; transition: transform .2s; }
.service-card:hover .more svg { transform: translateX(4px); }
@media (max-width: 900px) {
  .service-card { width: calc((100% - 24px) / 2); }
}
@media (max-width: 560px) {
  .service-card { width: 100%; }
}

/* ============ 业务列表（业务页 - 左右交替式） ============ */
.svc-list { display: flex; flex-direction: column; gap: 20px; }
.svc-row {
  display: flex; align-items: center; gap: 32px;
  background: #fff; border: 1px solid var(--border); border-radius: 16px;
  padding: 28px 36px; transition: all .25s; text-decoration: none; color: var(--text);
  position: relative; overflow: hidden;
}
.svc-row::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: var(--primary); transform: scaleY(0); transform-origin: center; transition: transform .3s;
}
.svc-row:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: transparent; }
.svc-row:hover::before { transform: scaleY(1); }
.svc-row.svc-rev { flex-direction: row-reverse; }
.svc-row.svc-rev::before { left: auto; right: 0; }
.svc-visual {
  flex-shrink: 0; width: 88px; height: 88px; border-radius: 20px;
  background: linear-gradient(135deg, var(--primary-light), #dceaff);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  position: relative;
}
.svc-num { font-size: 11px; font-weight: 700; color: var(--primary); letter-spacing: 1px; }
.svc-ic svg { width: 32px; height: 32px; color: var(--primary); }
.svc-body { flex: 1; min-width: 0; }
.svc-body h3 { font-size: 19px; margin-bottom: 6px; transition: color .2s; }
.svc-row:hover .svc-body h3 { color: var(--primary); }
.svc-body p { color: var(--text-light); font-size: 14px; line-height: 1.7; }
.svc-more {
  display: inline-flex; align-items: center; gap: 4px;
  margin-top: 12px; font-size: 14px; font-weight: 600; color: var(--primary);
}
.svc-more svg { width: 16px; height: 16px; transition: transform .2s; }
.svc-row:hover .svc-more svg { transform: translateX(4px); }
@media (max-width: 760px) {
  .svc-row { flex-direction: column !important; text-align: center; padding: 24px; gap: 16px; }
  .svc-row.svc-rev::before { right: 0; }
  .svc-body { text-align: center; }
  .svc-more { justify-content: center; }
}

/* ============ 文章卡片 ============ */
.article-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 24px; }
.article-card {
  background: #fff; border: 1px solid var(--border); border-radius: 14px; overflow: hidden;
  transition: all .25s; display: flex; flex-direction: column;
}
.article-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.article-card .cover { height: 180px; background: var(--primary-light); overflow: hidden; }
.article-card .cover img { width: 100%; height: 100%; object-fit: cover; }
.article-card .cover .no-cover {
  width: 100%; height: 100%; display: flex; align-items: center; justify-content: center;
  color: var(--primary); font-size: 40px; font-weight: 300;
}
.article-card .body { padding: 20px 22px; flex: 1; display: flex; flex-direction: column; }
.article-card h3 { font-size: 17px; line-height: 1.45; margin-bottom: 10px; }
.article-card h3 a { color: var(--text); }
.article-card h3 a:hover { color: var(--primary); }
.article-card .desc { color: var(--text-light); font-size: 14px; flex: 1; }
.article-card .meta {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--border);
  font-size: 13px; color: var(--text-light);
}
.tag {
  display: inline-block; background: var(--primary-light); color: var(--primary);
  border-radius: 20px; font-size: 12px; padding: 3px 12px;
}

/* ============ 分页 ============ */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 48px; }
.pagination a, .pagination span {
  min-width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); border-radius: 8px; padding: 0 12px; font-size: 14px; color: var(--text);
}
.pagination a:hover { border-color: var(--primary); color: var(--primary); }
.pagination .current { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ============ 详情页 ============ */
.detail-wrap { max-width: 900px; margin: 0 auto; }
.detail-head { text-align: center; padding: 48px 0 8px; }
.detail-head h1 { font-size: 30px; line-height: 1.4; }
.detail-head .meta { color: var(--text-light); font-size: 14px; margin-top: 14px; }
.detail-content {
  background: #fff; border: 1px solid var(--border); border-radius: 14px;
  padding: 40px; margin-top: 28px; font-size: 15.5px; line-height: 1.9;
}
.detail-content h2 { font-size: 23px; margin: 28px 0 14px; }
.detail-content h3 { font-size: 19px; margin: 24px 0 12px; }
.detail-content h4 { font-size: 16px; margin: 18px 0 10px; }
.detail-content p { margin: 14px 0; }
.detail-content img { border-radius: 10px; margin: 18px auto; }
.detail-content ul, .detail-content ol { margin: 14px 0 14px 24px; }
.detail-content ul li, .detail-content ol li { margin: 6px 0; }
.detail-content blockquote {
  border-left: 4px solid var(--primary); background: var(--primary-light);
  padding: 14px 18px; margin: 18px 0; border-radius: 0 8px 8px 0; color: #374151;
}
.detail-content table { width: 100%; border-collapse: collapse; margin: 18px 0; }
.detail-content th, .detail-content td { border: 1px solid var(--border); padding: 10px 12px; text-align: left; }
.detail-content th { background: var(--primary-light); font-weight: 600; }
.detail-content pre { background: #0e1c33; color: #dbeafe; padding: 18px; border-radius: 8px; overflow-x: auto; font-size: 13px; }
.detail-content code { background: var(--primary-light); padding: 2px 6px; border-radius: 4px; font-size: 13px; }
.detail-content pre code { background: none; padding: 0; }
.detail-content hr { border: none; border-top: 1px solid var(--border); margin: 24px 0; }

/* ============ 页面横幅 ============ */
.page-banner {
  background: linear-gradient(135deg, #eaf4fe, #d6e9ff);
  padding: 90px 0; text-align: center;
  background-size: cover; background-position: center;
}
.page-banner h1 { font-size: 36px; }
.page-banner p { color: #4b5563; margin-top: 10px; }
/* 自定义背景图横幅 */
.page-banner.has-bg { background-size: cover; background-position: center; background-repeat: no-repeat; }
.page-banner.has-bg .container { background: rgba(255,255,255,0.55); padding: 14px 24px; border-radius: 14px; display: inline-block; max-width: 100%; }
.page-banner.has-bg h1 { color: #1f2937; }
.page-banner.has-bg p { color: #374151; }

/* ============ 关于页 ============ */
.about-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; }
.about-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; max-width: 860px; margin: 0 auto; }
.about-stats .stat {
  background: rgba(255,255,255,0.72); backdrop-filter: blur(8px);
  border: 1px solid var(--border); border-radius: 14px; padding: 24px 16px; text-align: center;
}
.about-stats .stat b { font-size: 30px; color: var(--primary); display: block; }
.about-stats .stat span { font-size: 14px; color: var(--text-light); }
@media (max-width: 700px) { .about-stats { grid-template-columns: repeat(2, 1fr); } }
.about-content h2 { font-size: 24px; margin: 28px 0 12px; }
.about-content p { margin: 12px 0; color: #374151; }
.about-content ul { margin: 12px 0 12px 24px; }
.about-content ul li { margin: 8px 0; position: relative; padding-left: 4px; }
.about-visual { background: var(--primary-light); border-radius: 20px; padding: 44px 36px; text-align: center; }
.about-visual svg { width: 100px; height: 100px; margin: 0 auto 18px; color: var(--primary); }
.about-visual img { display: block; margin: 0 auto 18px; }
.about-visual h3 { font-size: 20px; margin-bottom: 12px; }
.about-visual p { color: var(--text-light); font-size: 14px; }
@media (max-width: 900px) { .about-grid { grid-template-columns: 1fr; } }

/* ============ 公司资质 ============ */
.qual-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.qual-card {
  background: #fff; border: 1px solid var(--border); border-radius: 14px;
  transition: all .25s; display: flex; flex-direction: column;
  position: relative; overflow: hidden; cursor: pointer;
}
.qual-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0); transform-origin: left; transition: transform .3s;
  z-index: 2;
}
.qual-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: transparent; }
.qual-card:hover::before { transform: scaleX(1); }
.qual-img-wrap {
  position: relative; width: 100%; padding-top: 70%; overflow: hidden;
  background: #f8fafc; border-bottom: 1px solid var(--border);
}
.qual-img-wrap img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  transition: transform .3s;
}
.qual-card:hover .qual-img-wrap img { transform: scale(1.04); }
.qual-zoom-hint {
  position: absolute; top: 10px; right: 10px; width: 34px; height: 34px;
  background: rgba(255,255,255,0.85); border-radius: 8px; display: flex;
  align-items: center; justify-content: center; opacity: 0; transition: opacity .2s;
}
.qual-zoom-hint svg { width: 18px; height: 18px; color: var(--primary); }
.qual-card:hover .qual-zoom-hint { opacity: 1; }
.qual-info { padding: 18px 22px 22px; }
.qual-info h3 { font-size: 16px; margin-bottom: 6px; }
.qual-info p { color: var(--text-light); font-size: 13px; line-height: 1.65; }

/* ============ 资质图片放大查看器 ============ */
.qual-viewer {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(14, 28, 51, 0.88);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  display: none; align-items: center; justify-content: center; padding: 30px;
}
.qual-viewer.open { display: flex; }
.qual-viewer-inner {
  max-width: 800px; max-height: 90vh; text-align: center; position: relative;
  animation: qualFade .2s ease;
}
@keyframes qualFade { from { opacity: 0; transform: scale(0.96); } to { opacity: 1; transform: none; } }
.qual-viewer-inner img {
  max-width: 100%; max-height: 80vh; border-radius: 10px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4); margin-bottom: 14px;
}
.qual-viewer-inner h3 { color: #fff; font-size: 17px; }
.qual-viewer-close {
  position: absolute; top: -16px; right: -16px;
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255,255,255,0.9); border: none; font-size: 26px;
  line-height: 1; cursor: pointer; color: #333;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25); transition: all .2s;
}
.qual-viewer-close:hover { background: #fff; transform: scale(1.1); }
@media (max-width: 560px) {
  .qual-grid { grid-template-columns: 1fr; }
  .qual-viewer-inner { max-width: 100%; }
  .qual-viewer { padding: 16px; }
  .qual-viewer-close { top: -10px; right: -10px; width: 34px; height: 34px; font-size: 22px; }
}

/* ============ 联系页 ============ */
.contact-grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: 44px; }
.contact-info .item { display: flex; gap: 14px; margin-bottom: 26px; align-items: flex-start; }
.contact-info .item .ic {
  width: 46px; height: 46px; flex-shrink: 0; border-radius: 12px; background: var(--primary-light);
  display: flex; align-items: center; justify-content: center;
}
.contact-info .item .ic svg { width: 22px; height: 22px; color: var(--primary); }
.contact-info .item .ic img { width: 22px; height: 22px; object-fit: contain; }
.contact-info .item h4 { font-size: 15px; margin-bottom: 2px; }
.contact-info .item p { color: var(--text-light); font-size: 14px; }
.form-card {
  background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 32px;
  box-shadow: var(--shadow);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid .full { grid-column: 1 / -1; }
.form-group label { display: block; font-size: 14px; margin-bottom: 6px; font-weight: 600; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 10px 14px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; font-family: inherit; transition: all .2s; background: #fff; color: var(--text);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(43,125,233,0.14);
}
.form-group textarea { min-height: 110px; resize: vertical; }
.form-msg { margin-top: 14px; padding: 10px 14px; border-radius: 8px; font-size: 14px; display: none; }
.form-msg.ok { display: block; background: #e8f8ef; color: #0a7a45; }
.form-msg.err { display: block; background: #fdecec; color: #c0392b; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }

/* ============ 业务详情页 ============ */
.business-hero { background: linear-gradient(135deg, #eaf4fe, #d6e9ff); padding: 48px 0; }
.business-hero .inner { max-width: 1360px; margin: 0 auto; padding: 0 24px; display: flex; justify-content: space-between; align-items: center; gap: 32px; flex-wrap: wrap; }
.business-hero h1 { font-size: 30px; margin-bottom: 10px; }
.business-hero p { color: #4b5563; max-width: 600px; }
/* 自定义背景图业务横幅 */
.business-hero.has-bg { background-size: cover; background-position: center; background-repeat: no-repeat; }
.business-hero.has-bg .inner > div { background: rgba(255,255,255,0.55); padding: 18px 26px; border-radius: 14px; }
.business-hero.has-bg h1 { color: #1f2937; }
.business-hero.has-bg p { color: #374151; }
.business-main { max-width: 1360px; margin: 0 auto; padding: 44px 24px 48px; }
.business-main .content { background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 40px 44px; }
.business-main .content img { border-radius: 10px; margin: 16px auto; display: block; max-width: 100%; height: auto; box-shadow: 0 4px 16px rgba(15,23,42,.07); }
.business-main .content h2, .business-main .content h3 { margin-top: 36px; margin-bottom: 16px; }
.business-main .content h2 { font-size: 24px; }
.business-main .content h3 { font-size: 19px; }
.business-main .content h2:first-child, .business-main .content h3:first-child { margin-top: 0; }
.business-main .content p { margin: 16px 0; line-height: 1.85; color: #374151; }
.business-main .content ul { list-style: none; margin: 18px 0; padding-left: 6px; display: grid; gap: 12px; }
.business-main .content ol { margin: 18px 0 18px 8px; padding-left: 22px; display: grid; gap: 12px; }
.business-main .content ul > li { position: relative; padding-left: 22px; line-height: 1.75; color: #374151; }
.business-main .content ul > li::before {
  content: ''; position: absolute; left: 0; top: 10px;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--primary); opacity: .85;
}
.business-main .content ol > li { line-height: 1.75; color: #374151; }
.business-main .content ol > li::marker { color: var(--primary); font-weight: 700; }
.business-main .content blockquote {
  border-left: 4px solid var(--primary); background: var(--primary-light);
  padding: 14px 18px; margin: 18px 0; border-radius: 0 10px 10px 0; color: #374151;
}
.business-main .content strong { color: #1f2937; }
@media (max-width: 700px) { .business-main .content { padding: 24px 18px; } }

/* ============ 业务详情页模板（bp-* 前缀） ============ */
.bp-section { padding: 56px 0; }
.bp-section:first-of-type { padding-top: 0; }
.bp-section-alt { background: var(--bg-gray); }
.bp-section-title { text-align: center; font-size: 26px; margin-bottom: 12px; }
.bp-section-title::after { content: ''; display: block; width: 44px; height: 3px; background: var(--primary); margin: 10px auto 0; border-radius: 2px; }
.bp-section-sub { text-align: center; color: var(--text-light); font-size: 15px; max-width: 680px; margin: 0 auto 36px; line-height: 1.7; }

/* 滚动渐入动画 */
.bp-reveal { opacity: 0; transform: translateY(28px); transition: opacity .6s ease, transform .6s ease; }
.bp-reveal.bp-in { opacity: 1; transform: none; }
.bp-reveal:nth-child(2) { transition-delay: .08s; }
.bp-reveal:nth-child(3) { transition-delay: .16s; }
.bp-reveal:nth-child(4) { transition-delay: .24s; }
.bp-reveal:nth-child(5) { transition-delay: .32s; }
.bp-reveal:nth-child(6) { transition-delay: .4s; }

/* 产品概述：左文右图 */
.bp-overview { display: flex; align-items: center; gap: 48px; }
.bp-overview-text { flex: 1; }
.bp-overview-text h3 { font-size: 22px; margin-bottom: 16px; }
.bp-overview-text p { color: #374151; line-height: 1.85; margin-bottom: 14px; }
.bp-overview-img { flex: 0 0 420px; border-radius: 14px; overflow: hidden; box-shadow: var(--shadow-lg); }
.bp-overview-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s; }
.bp-overview-img:hover img { transform: scale(1.05); }

/* 核心功能卡片 */
.bp-feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.bp-feature-card {
  background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 32px 24px;
  text-align: center; transition: transform .3s, box-shadow .3s; position: relative; overflow: hidden;
}
.bp-feature-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--primary); transform: scaleX(0); transition: transform .3s; }
.bp-feature-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.bp-feature-card:hover::before { transform: scaleX(1); }
.bp-feature-icon { width: 60px; height: 60px; margin: 0 auto 18px; border-radius: 16px; background: var(--primary-light); display: flex; align-items: center; justify-content: center; }
.bp-feature-icon svg { width: 30px; height: 30px; color: var(--primary); }
.bp-feature-card h3 { font-size: 17px; margin-bottom: 10px; }
.bp-feature-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* 应用场景 */
.bp-scenario-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.bp-scenario-item {
  border-radius: 12px; padding: 28px 20px; text-align: center;
  background: #fff; border: 1px solid var(--border); transition: transform .3s, box-shadow .3s;
}
.bp-scenario-item:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.bp-scenario-emoji { font-size: 32px; margin-bottom: 12px; }
.bp-scenario-item h4 { font-size: 16px; margin-bottom: 8px; }
.bp-scenario-item p { font-size: 13px; color: var(--text-light); line-height: 1.6; }

/* 数据亮点 */
.bp-stats { display: flex; justify-content: center; gap: 56px; flex-wrap: wrap; }
.bp-stat { text-align: center; }
.bp-stat-num { font-size: 42px; font-weight: 800; color: var(--primary); line-height: 1; }
.bp-stat-unit { font-size: 20px; font-weight: 700; color: var(--primary); }
.bp-stat-label { font-size: 14px; color: var(--text-light); margin-top: 8px; }

/* 行动号召 */
.bp-cta {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 16px; padding: 48px 40px; text-align: center; color: #fff;
  position: relative; overflow: hidden;
}
.bp-cta::before { content: ''; position: absolute; top: -40px; right: -40px; width: 180px; height: 180px; border-radius: 50%; background: rgba(255,255,255,.08); }
.bp-cta::after { content: ''; position: absolute; bottom: -60px; left: -30px; width: 140px; height: 140px; border-radius: 50%; background: rgba(255,255,255,.06); }
.bp-cta h2 { font-size: 26px; margin-bottom: 12px; position: relative; }
.bp-cta p { font-size: 15px; opacity: .88; margin-bottom: 24px; position: relative; }
.bp-cta .btn { position: relative; background: #fff; color: var(--primary); border: none; padding: 12px 36px; font-size: 16px; font-weight: 600; border-radius: 40px; }
.bp-cta .btn:hover { background: #f0f7ff; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,.15); }

/* 模板响应式 */
@media (max-width: 900px) {
  .bp-feature-grid { grid-template-columns: repeat(2, 1fr); }
  .bp-scenario-grid { grid-template-columns: repeat(2, 1fr); }
  .bp-overview { flex-direction: column; gap: 24px; }
  .bp-overview-img { flex: none; width: 100%; max-height: 280px; }
  .bp-stats { gap: 32px; }
}
@media (max-width: 560px) {
  .bp-feature-grid { grid-template-columns: 1fr; }
  .bp-scenario-grid { grid-template-columns: 1fr; }
  .bp-section { padding: 36px 0; }
  .bp-stat-num { font-size: 34px; }
  .bp-cta { padding: 32px 20px; }
}

/* ============ 行业录音试听区块 ============ */
.bp-recordings { padding: 20px 0; }
.bp-rec-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 28px; }
.bp-rec-item { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px; transition: box-shadow .3s; }
.bp-rec-item:hover { box-shadow: var(--shadow); }
.bp-rec-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.bp-rec-industry { font-size: 17px; font-weight: 700; color: var(--text); }
.bp-rec-tag { font-size: 12px; color: var(--primary); background: var(--primary-light); border-radius: 20px; padding: 3px 12px; font-weight: 600; }
.bp-rec-player audio { width: 100%; height: 40px; }
@media (max-width: 560px) { .bp-rec-grid { grid-template-columns: 1fr; } }

/* ============ 模板B：流程图样式（呼叫中心系统） ============ */
.bp-flow { display: flex; flex-wrap: wrap; gap: 0; justify-content: center; align-items: stretch; margin-top: 36px; }
.bp-flow-step { flex: 1 1 180px; min-width: 160px; max-width: 220px; text-align: center; position: relative; padding: 24px 16px; background: #fff; border: 1px solid var(--border); border-radius: 14px; transition: transform .3s, box-shadow .3s; }
.bp-flow-step:hover { transform: translateY(-6px); box-shadow: var(--shadow); z-index: 2; }
.bp-flow-step:not(:last-child)::after { content: ''; position: absolute; top: 50%; right: -1px; width: 0; height: 0; border: 8px solid transparent; border-left-color: var(--primary); transform: translateY(-50%); z-index: 3; }
.bp-flow-step:not(:last-child)::before { content: ''; position: absolute; top: 50%; right: -12px; width: 24px; height: 2px; background: var(--primary); transform: translateY(-50%); z-index: 1; }
.bp-flow-num { width: 44px; height: 44px; margin: 0 auto 14px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 800; }
.bp-flow-step h4 { font-size: 16px; margin-bottom: 8px; }
.bp-flow-step p { font-size: 13px; color: var(--text-light); line-height: 1.6; }
.bp-flow-step .bp-flow-ic { font-size: 28px; margin-bottom: 8px; }
@media (max-width: 900px) { .bp-flow { flex-direction: column; align-items: center; } .bp-flow-step { max-width: 100%; width: 100%; } .bp-flow-step:not(:last-child)::after, .bp-flow-step:not(:last-child)::before { display: none; } .bp-flow-step:not(:last-child) { margin-bottom: 12px; } }

/* ============ 模板C：对比卡片样式（电销卡） ============ */
.bp-compare { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 36px; }
.bp-compare-item { background: #fff; border: 1px solid var(--border); border-radius: 16px; overflow: hidden; transition: transform .3s, box-shadow .3s; }
.bp-compare-item:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.bp-compare-item.featured { border-color: var(--primary); border-width: 2px; position: relative; }
.bp-compare-item.featured::before { content: '推荐'; position: absolute; top: 0; left: 50%; transform: translateX(-50%); background: var(--primary); color: #fff; font-size: 12px; font-weight: 600; padding: 3px 16px; border-radius: 0 0 8px 8px; }
.bp-compare-head { padding: 24px 20px 16px; text-align: center; }
.bp-compare-item.featured .bp-compare-head { padding-top: 36px; }
.bp-compare-head h4 { font-size: 18px; margin-bottom: 8px; }
.bp-compare-price { font-size: 36px; font-weight: 800; color: var(--primary); }
.bp-compare-price small { font-size: 14px; font-weight: 600; color: var(--text-light); }
.bp-compare-features { padding: 16px 20px 24px; }
.bp-compare-features ul { list-style: none; display: grid; gap: 10px; }
.bp-compare-features li { font-size: 14px; color: #374151; padding-left: 24px; position: relative; line-height: 1.6; }
.bp-compare-features li::before { content: '\2713'; position: absolute; left: 0; top: 0; width: 18px; height: 18px; border-radius: 50%; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; }
@media (max-width: 900px) { .bp-compare { grid-template-columns: 1fr; } }

/* ============ 模板D：规格表样式（SIP线路） ============ */
.bp-spec { width: 100%; border-collapse: collapse; margin-top: 36px; }
.bp-spec th, .bp-spec td { border: 1px solid var(--border); padding: 14px 20px; text-align: left; }
.bp-spec thead th { background: var(--primary); color: #fff; font-size: 15px; font-weight: 600; }
.bp-spec tbody tr:nth-child(even) { background: var(--bg-gray); }
.bp-spec tbody tr:hover { background: var(--primary-light); }
.bp-spec td:first-child { font-weight: 600; color: var(--text); white-space: nowrap; }
.bp-spec .bp-spec-val { color: var(--primary); font-weight: 600; }
.bp-spec-badge { display: inline-block; background: var(--primary-light); color: var(--primary); border-radius: 6px; padding: 2px 10px; font-size: 12px; font-weight: 600; margin: 2px 4px 2px 0; }

/* ============ 模板E：优势列表样式（400电话） ============ */
.bp-adv-list { display: grid; gap: 16px; margin-top: 36px; }
.bp-adv-row { display: flex; gap: 20px; align-items: flex-start; background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 24px; transition: transform .3s, box-shadow .3s; }
.bp-adv-row:hover { transform: translateX(8px); box-shadow: var(--shadow); }
.bp-adv-row:nth-child(even) { flex-direction: row-reverse; }
.bp-adv-num { flex: 0 0 56px; width: 56px; height: 56px; border-radius: 16px; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 24px; font-weight: 800; }
.bp-adv-body { flex: 1; }
.bp-adv-body h4 { font-size: 18px; margin-bottom: 8px; }
.bp-adv-body p { font-size: 14px; color: var(--text-light); line-height: 1.7; }
.bp-adv-body .bp-adv-tags { margin-top: 10px; display: flex; gap: 8px; flex-wrap: wrap; }
.bp-adv-body .bp-adv-tags span { font-size: 12px; color: var(--primary); background: var(--primary-light); border-radius: 20px; padding: 3px 12px; font-weight: 600; }
@media (max-width: 700px) { .bp-adv-row, .bp-adv-row:nth-child(even) { flex-direction: column; align-items: center; text-align: center; } .bp-adv-body { text-align: center; } .bp-adv-body .bp-adv-tags { justify-content: center; } }

.business-related { max-width: 1360px; margin: 0 auto; padding: 40px 24px 0; }
.business-related h2 { margin-bottom: 20px; font-size: 22px; }
.business-related .article-grid { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }

/* ============ 面包屑 ============ */
.breadcrumb { font-size: 13px; color: var(--text-light); padding: 16px 0; }
.breadcrumb a { color: var(--text-light); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { margin: 0 8px; color: #d1d5db; }

/* ============ 空状态 ============ */
.empty-state { text-align: center; padding: 64px 20px; color: var(--text-light); }
.empty-state .big { font-size: 52px; margin-bottom: 12px; }
.empty-state p { font-size: 15px; }

/* ============ 工具类 ============ */
.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.hidden { display: none !important; }

/* ============ 悬浮联系我们按钮 ============ */
.float-contact {
  position: fixed;
  right: 28px;
  bottom: 80px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 6px 20px rgba(43,125,233,0.4);
  transition: all .3s cubic-bezier(.34,1.56,.64,1);
  text-decoration: none;
  animation: fcPulse 2s ease-in-out infinite;
}
.float-contact::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid var(--primary);
  opacity: 0;
  animation: fcRing 2s ease-out infinite;
}
.float-contact::after {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid var(--primary);
  opacity: 0;
  animation: fcRing 2s ease-out infinite;
  animation-delay: 1s;
}
@keyframes fcPulse {
  0%, 100% { box-shadow: 0 6px 20px rgba(43,125,233,0.4); }
  50% { box-shadow: 0 6px 28px rgba(43,125,233,0.65); }
}
@keyframes fcRing {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.6); opacity: 0; }
}
.float-contact svg {
  width: 26px; height: 26px; margin-top: 9px;
  animation: fcShake 2.5s ease-in-out infinite;
}
.float-contact img {
  width: 26px; height: 26px; margin-top: 9px;
  animation: fcShake 2.5s ease-in-out infinite;
}
@keyframes fcShake {
  0%, 80%, 100% { transform: rotate(0) scale(1); }
  85% { transform: rotate(-12deg) scale(1.08); }
  90% { transform: rotate(10deg) scale(1.08); }
  95% { transform: rotate(-6deg) scale(1.04); }
}
.float-contact-label {
  font-size: 10px; line-height: 1; letter-spacing: 0.5px;
  opacity: 0.85;
}
.float-contact:hover {
  transform: translateY(-4px) scale(1.06);
  box-shadow: 0 10px 28px rgba(43,125,233,0.5);
  color: #fff;
  animation: none;
}
.float-contact:hover::before,
.float-contact:hover::after { animation: none; opacity: 0; }
.float-contact:hover svg,
.float-contact:hover img { animation: none; }
.float-contact:hover .float-contact-label { opacity: 1; }
@media (max-width: 900px) {
  .float-contact { right: 16px; bottom: 64px; }
}

/* ============ 首页轮播图 ============ */
.hero-carousel {
  background: linear-gradient(135deg, #eaf4fe 0%, #d6e9ff 60%, #c9e2ff 100%);
  padding: 0;
}
.hero-carousel .container { max-width: 1360px; margin: 0 auto; padding: 0 24px; }
.carousel-viewport {
  position: relative; border-radius: 0; overflow: hidden;
  box-shadow: none; background: #fff;
}
.carousel-track { display: flex; transition: transform .55s ease; }
.carousel-slide {
  position: relative; flex: 0 0 100%; min-width: 100%;
  aspect-ratio: 16/5;
}
.carousel-slide img { width: 100%; height: 100%; object-fit: cover; display: block; }
.carousel-caption {
  position: absolute; left: 18%; bottom: 30px; max-width: 60%;
  background: rgba(15, 30, 55, 0.35); backdrop-filter: blur(4px);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 12px; padding: 14px 22px;
  color: #fff;
}
.carousel-caption h2 { font-size: 24px; font-weight: 700; margin-bottom: 6px; line-height: 1.3; }
.carousel-caption p { font-size: 14px; color: rgba(255,255,255,0.88); margin: 0; }
.carousel-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 42px; height: 42px; border-radius: 50%;
  background: rgba(255,255,255,0.82); border: 1px solid rgba(43,125,233,0.25);
  color: var(--primary); font-size: 18px; line-height: 1; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all .25s; z-index: 5;
  box-shadow: 0 3px 12px rgba(0,0,0,0.12);
  opacity: 0; pointer-events: none; /* 默认隐藏 */
}
.carousel-viewport:hover .carousel-arrow { opacity: 1; pointer-events: auto; } /* 悬停显示 */
.carousel-arrow:hover { background: #fff; transform: translateY(-50%) scale(1.08); }
.carousel-arrow.prev { left: 14px; }
.carousel-arrow.next { right: 14px; }
.carousel-dots {
  position: absolute; bottom: 14px; right: 20px;
  display: flex; gap: 8px; z-index: 5;
}
.carousel-dots .dot {
  width: 10px; height: 10px; border-radius: 50%;
  border: none; background: rgba(255,255,255,0.65); cursor: pointer;
  transition: all .25s; padding: 0;
}
.carousel-dots .dot.active { background: var(--primary); transform: scale(1.25); }
@media (max-width: 900px) {
  .carousel-caption { padding: 10px 14px; max-width: 88%; }
  .carousel-caption h2 { font-size: 18px; }
  .carousel-caption p { font-size: 12px; }
  .carousel-arrow { width: 34px; height: 34px; font-size: 14px; }
}

/* ============================================================
   首页新增模块（数据成果 / 服务流程 / 行业方案 / 客户评价 / FAQ / CTA）
   ============================================================ */

/* ============ ① 数据成果横幅 ============ */
.stats-banner {
  background: linear-gradient(135deg, #0e1c3a 0%, #1c5fbe 100%);
  padding: 40px 0;
}
.stats-inner {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px;
}
.stats-item { text-align: center; position: relative; }
.stats-item + .stats-item::before {
  content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 1px; height: 36px; background: rgba(255,255,255,0.16);
}
.stats-item b {
  font-size: 30px; font-weight: 700; color: #fff;
  display: block; line-height: 1.2; letter-spacing: 0.5px;
}
.stats-item b em { font-style: normal; color: #6db5ff; }
.stats-item span { font-size: 13px; color: rgba(255,255,255,0.68); }
@media (max-width: 900px) {
  .stats-inner { grid-template-columns: repeat(3, 1fr); gap: 20px 12px; }
  .stats-item:nth-child(4)::before { display: none; }
  .stats-item b { font-size: 24px; }
}
@media (max-width: 560px) {
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .stats-item::before { display: none; }
  .stats-item b { font-size: 22px; }
}

/* ============ ② 服务流程（四步走） ============ */
.process-steps {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.process-step {
  background: #fff; border: 1px solid var(--border); border-radius: 14px;
  padding: 30px 24px; text-align: center; position: relative;
  transition: all .25s; overflow: hidden;
}
.process-step:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: transparent; }
.process-step .step-num {
  position: absolute; right: 14px; top: 6px;
  font-size: 44px; font-weight: 800; color: var(--primary-light);
  line-height: 1; user-select: none;
}
.process-step .step-icon {
  width: 58px; height: 58px; border-radius: 16px;
  background: linear-gradient(135deg, var(--primary-light), #dceaff);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px; position: relative; z-index: 1;
}
.process-step .step-icon svg { width: 26px; height: 26px; color: var(--primary); }
.process-step .step-icon img { width: 26px; height: 26px; object-fit: contain; }
.process-step h3 { font-size: 17px; margin-bottom: 8px; }
.process-step p { color: var(--text-light); font-size: 13.5px; line-height: 1.65; }
/* 步骤间连接箭头（桌面端） */
@media (min-width: 901px) {
  .process-step:not(:last-child)::after {
    content: ''; position: absolute; right: -17px; top: 50%;
    transform: translateY(-50%) rotate(45deg);
    width: 10px; height: 10px; border-top: 2.5px solid #c4d8f4;
    border-right: 2.5px solid #c4d8f4; z-index: 2;
  }
}
@media (max-width: 900px) {
  .process-steps { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .process-step .step-num { font-size: 36px; }
}
@media (max-width: 560px) {
  .process-steps { grid-template-columns: 1fr; }
}

/* ============ ③ 行业解决方案 ============ */
.industry-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.industry-card {
  background: #fff; border: 1px solid var(--border); border-radius: 14px;
  padding: 28px 26px; text-decoration: none; color: var(--text);
  transition: all .25s; position: relative; overflow: hidden;
}
.industry-card::before {
  content: ''; position: absolute; left: 0; top: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), #6db5ff);
  transform: scaleX(0); transform-origin: left; transition: transform .3s;
}
.industry-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: transparent; color: var(--text); }
.industry-card:hover::before { transform: scaleX(1); }
.industry-icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: var(--primary-light); display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px; transition: all .25s;
}
.industry-icon svg { width: 26px; height: 26px; color: var(--primary); }
.industry-card:hover .industry-icon { background: var(--primary); }
.industry-card:hover .industry-icon svg { color: #fff; }
.industry-card h3 { font-size: 18px; margin-bottom: 6px; }
.industry-keywords { color: var(--primary); font-size: 13px; font-weight: 600; margin-bottom: 8px; }
.industry-desc { color: var(--text-light); font-size: 13.5px; line-height: 1.65; }
@media (max-width: 900px) {
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .industry-grid { grid-template-columns: 1fr; }
}

/* ============ ④ 客户评价 ============ */
.testimonial-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
}
.testimonial-card {
  background: #fff; border: 1px solid var(--border); border-radius: 14px;
  padding: 28px 30px 24px; position: relative; transition: all .25s;
}
.testimonial-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.testimonial-quote {
  position: absolute; top: 18px; right: 26px;
  font-size: 52px; line-height: 1; color: var(--primary-light);
  font-family: Georgia, serif; user-select: none;
}
.testimonial-text { color: #374151; font-size: 14.5px; line-height: 1.8; margin: 0 0 18px; }
.testimonial-footer { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar {
  width: 42px; height: 42px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, var(--primary), #6db5ff);
  color: #fff; font-size: 17px; font-weight: 600;
  display: flex; align-items: center; justify-content: center;
}
.testimonial-footer b { font-size: 14.5px; display: block; line-height: 1.4; }
.testimonial-footer span { font-size: 12.5px; color: var(--text-light); display: block; }
@media (max-width: 900px) {
  .testimonial-grid { grid-template-columns: 1fr; }
  .testimonial-quote { font-size: 40px; }
}

/* ============ 首页：常见问题入口 ============ */
.faq-entry {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center;
}
.faq-entry-text h2 { font-size: 28px; font-weight: 700; margin-bottom: 12px; }
.faq-entry-text p { color: var(--text-light); font-size: 14.5px; line-height: 1.8; margin-bottom: 22px; }
.faq-entry-list a {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 16px 20px; border: 1px solid var(--border); border-radius: 12px;
  margin-bottom: 12px; text-decoration: none; color: var(--text);
  font-size: 15px; font-weight: 500; transition: all .22s; background: #fff;
}
.faq-entry-list a:hover {
  border-color: var(--primary); box-shadow: var(--shadow);
  transform: translateX(4px); color: var(--primary);
}
.faq-entry-list .faq-entry-q { flex: 1; }
.faq-entry-list .arrow { color: var(--text-light); flex-shrink: 0; transition: color .2s; }
.faq-entry-list a:hover .arrow { color: var(--primary); }
@media (max-width: 900px) {
  .faq-entry { grid-template-columns: 1fr; gap: 28px; }
  .faq-entry-text h2 { font-size: 24px; }
}

/* ============ 常见问题独立页 ============ */
.faq-page-wrap { max-width: 860px; margin: 0 auto; }
.faq-group { margin-bottom: 44px; }
.faq-group-title {
  display: flex; align-items: center; gap: 12px;
  font-size: 22px; font-weight: 700; margin-bottom: 18px;
  padding-left: 14px; border-left: 4px solid var(--primary);
}
.faq-group-title em {
  font-style: normal; font-weight: 500; font-size: 13px;
  color: var(--text-light); background: var(--bg-gray);
  padding: 3px 12px; border-radius: 20px;
}
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  margin-bottom: 14px; overflow: hidden; transition: all .25s;
}
.faq-item.open { border-color: rgba(43,125,233,0.35); box-shadow: var(--shadow); }
.faq-q {
  width: 100%; display: flex; align-items: center; gap: 12px;
  padding: 18px 22px; background: none; border: none; cursor: pointer;
  font-size: 15.5px; font-weight: 600; color: var(--text); text-align: left;
  font-family: inherit;
}
.faq-q:hover { color: var(--primary); }
.faq-icon {
  width: 30px; height: 30px; border-radius: 8px; flex-shrink: 0;
  background: var(--primary-light); display: flex; align-items: center; justify-content: center;
}
.faq-icon svg { width: 17px; height: 17px; color: var(--primary); }
.faq-icon img { width: 17px; height: 17px; object-fit: contain; }
.faq-q-text { flex: 1; }
.faq-arrow { flex-shrink: 0; color: var(--text-light); transition: transform .25s; }
.faq-item.open .faq-arrow { transform: rotate(180deg); color: var(--primary); }
.faq-a {
  max-height: 0; overflow: hidden; transition: max-height .3s ease;
  padding: 0 22px;
}
.faq-a p {
  color: var(--text-light); font-size: 14px; line-height: 1.8;
  padding: 0 0 18px 42px; margin: 0;
}
@media (max-width: 560px) {
  .faq-q { padding: 14px 16px; font-size: 14.5px; }
  .faq-a { padding: 0 16px; }
  .faq-a p { padding: 0 0 14px 0; }
}

/* ============ ⑥ 底部行动号召 CTA ============ */
.cta-banner {
  background: linear-gradient(135deg, #1c5fbe 0%, #2b7de9 55%, #4a9bfa 100%);
  padding: 56px 0; position: relative; overflow: hidden;
}
.cta-banner::before {
  content: ''; position: absolute; right: -80px; top: -80px;
  width: 300px; height: 300px; border-radius: 50%;
  background: rgba(255,255,255,0.07);
}
.cta-banner::after {
  content: ''; position: absolute; left: -60px; bottom: -100px;
  width: 220px; height: 220px; border-radius: 50%;
  background: rgba(255,255,255,0.05);
}
.cta-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 32px; position: relative; z-index: 1; flex-wrap: wrap;
}
.cta-text h2 { color: #fff; font-size: 28px; font-weight: 700; margin-bottom: 8px; }
.cta-text p { color: rgba(255,255,255,0.82); font-size: 15px; margin: 0; }
.cta-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.cta-btn-phone {
  background: #fff; color: var(--primary-dark); font-weight: 700; font-size: 16px;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 12px; border: none;
  box-shadow: 0 6px 18px rgba(0,0,0,0.16); transition: all .25s;
}
.cta-btn-phone:hover { transform: translateY(-3px); box-shadow: 0 10px 26px rgba(0,0,0,0.22); color: var(--primary); }
.cta-btn-phone svg { flex-shrink: 0; }
.cta-btn-consult {
  background: rgba(255,255,255,0.14); color: #fff; font-weight: 600; font-size: 15px;
  padding: 13px 26px; border-radius: 12px; border: 1.5px solid rgba(255,255,255,0.5);
  backdrop-filter: blur(6px); transition: all .25s;
}
.cta-btn-consult:hover { background: rgba(255,255,255,0.26); color: #fff; }
@media (max-width: 900px) {
  .cta-inner { flex-direction: column; text-align: center; }
  .cta-text h2 { font-size: 23px; }
  .cta-btns { justify-content: center; }
}