/* 安齿健智能科技官网 样式 */
:root {
  --blue: #1450a3;
  --blue-dark: #0b3d91;
  --blue-deep: #082b66;
  --blue-light: #eaf1fb;
  --gold: #c9a24b;
  --text: #22293a;
  --text-2: #5a6478;
  --line: #e3e8f0;
  --bg: #ffffff;
  --bg-soft: #f6f8fc;
  --radius: 12px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16px;
}
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-dark); }
img { max-width: 100%; display: block; }
.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* ===== 顶栏 ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(6px);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo {
  width: 42px; height: 42px; border-radius: 10px;
  background: linear-gradient(135deg, var(--blue), var(--blue-deep));
  color: #fff; font-weight: 700; font-size: 20px;
  display: flex; align-items: center; justify-content: center;
}
.brand-name { font-size: 20px; font-weight: 700; color: var(--blue-deep); letter-spacing: 1px; }
.brand-sub { font-size: 11px; color: var(--text-2); letter-spacing: 2px; }
.main-nav { display: flex; gap: 4px; flex-wrap: wrap; }
.main-nav a {
  padding: 8px 14px; border-radius: 8px;
  color: var(--text); font-size: 15px;
}
.main-nav a:hover { background: var(--blue-light); color: var(--blue-dark); }
.main-nav a.active { background: var(--blue); color: #fff; }

/* ===== Hero ===== */
.hero {
  background: linear-gradient(160deg, var(--blue-deep) 0%, var(--blue-dark) 55%, var(--blue) 100%);
  color: #fff; padding: 88px 0 96px;
  position: relative; overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; right: -140px; top: -140px;
  width: 460px; height: 460px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.10), transparent 65%);
}
.hero .kicker { letter-spacing: 4px; font-size: 14px; color: #bcd0f2; margin-bottom: 14px; }
.hero h1 { font-size: 44px; line-height: 1.25; margin-bottom: 18px; font-weight: 700; }
.hero p.lead { font-size: 18px; color: #d7e2f7; max-width: 720px; }
.hero .actions { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 12px 30px; border-radius: 999px;
  font-size: 16px; transition: all .2s;
}
.btn-primary { background: #fff; color: var(--blue-dark); font-weight: 600; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,.18); }
.btn-ghost { border: 1px solid rgba(255,255,255,.6); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.12); }

/* ===== 数字条 ===== */
.stats { background: var(--bg-soft); border-bottom: 1px solid var(--line); }
.stats-inner {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 16px; padding: 34px 0;
}
.stat { text-align: center; }
.stat b { display: block; font-size: 40px; color: var(--blue-dark); line-height: 1.2; }
.stat b sup { font-size: 18px; }
.stat span { font-size: 14px; color: var(--text-2); }

/* ===== 区块 ===== */
.section { padding: 72px 0; }
.section.alt { background: var(--bg-soft); }
.section-head { text-align: center; margin-bottom: 44px; }
.section-head .en { font-size: 13px; letter-spacing: 3px; color: var(--gold); text-transform: uppercase; }
.section-head h2 { font-size: 30px; color: var(--blue-deep); margin-top: 6px; }
.section-head .desc { color: var(--text-2); max-width: 760px; margin: 12px auto 0; }

/* 卡片 */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px; transition: all .2s;
}
.card:hover { box-shadow: 0 12px 30px rgba(11,61,145,.10); transform: translateY(-3px); }
.card .icon {
  width: 52px; height: 52px; border-radius: 12px; margin-bottom: 16px;
  background: var(--blue-light); color: var(--blue-dark);
  display: flex; align-items: center; justify-content: center; font-size: 24px;
}
.card h3 { font-size: 20px; color: var(--blue-deep); margin-bottom: 10px; }
.card p { color: var(--text-2); font-size: 15px; }
.card ul { margin: 10px 0 0 18px; color: var(--text-2); font-size: 15px; }
.card ul li { margin: 4px 0; }

/* ===== 时间轴 ===== */
.timeline { position: relative; margin-left: 10px; padding-left: 34px; border-left: 3px solid var(--blue-light); }
.tl-item { position: relative; padding-bottom: 34px; }
.tl-item::before {
  content: ""; position: absolute; left: -45px; top: 8px;
  width: 15px; height: 15px; border-radius: 50%;
  background: #fff; border: 4px solid var(--blue);
}
.tl-year {
  display: inline-block; background: var(--blue); color: #fff;
  font-weight: 700; padding: 2px 14px; border-radius: 999px; margin-bottom: 8px;
}
.tl-item h4 { color: var(--blue-deep); font-size: 17px; margin-bottom: 4px; }
.tl-item p { color: var(--text-2); font-size: 15px; }

/* ===== 专利表 ===== */
.patent-filter { display: flex; gap: 10px; justify-content: center; margin-bottom: 26px; flex-wrap: wrap; }
.patent-filter button {
  border: 1px solid var(--line); background: #fff; color: var(--text);
  padding: 8px 22px; border-radius: 999px; cursor: pointer; font-size: 15px;
}
.patent-filter button.active { background: var(--blue); border-color: var(--blue); color: #fff; }
.patent-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.patent-item {
  background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--blue);
  border-radius: 10px; padding: 16px 20px; font-size: 15px;
}
.patent-item .pt { display: flex; justify-content: space-between; gap: 10px; align-items: baseline; }
.patent-item .pt b { color: var(--blue-deep); }
.patent-item .tag {
  flex-shrink: 0; font-size: 12px; padding: 2px 10px; border-radius: 999px;
  background: var(--blue-light); color: var(--blue-dark);
}
.patent-item .meta { color: var(--text-2); font-size: 13px; margin-top: 6px; }

/* ===== 培训 ===== */
.training-summary { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; margin-bottom: 36px; }
.training-groups h3 { color: var(--blue-deep); margin: 26px 0 12px; font-size: 19px; border-left: 4px solid var(--gold); padding-left: 12px; }
.training-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.training-item {
  background: #fff; border: 1px solid var(--line); border-radius: 10px;
  text-align: center; padding: 12px 8px; font-size: 14px;
}
.training-item b { display: block; color: var(--blue-dark); font-size: 15px; }
.training-item span { color: var(--text-2); font-size: 13px; }

/* ===== 新闻 ===== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: all .2s; }
.news-card:hover { box-shadow: 0 12px 30px rgba(11,61,145,.10); transform: translateY(-3px); }
.news-card .thumb { height: 160px; background: linear-gradient(135deg, var(--blue-dark), var(--blue)); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 34px; }
.news-card .body { padding: 22px; }
.news-card .date { font-size: 13px; color: var(--gold); }
.news-card h3 { font-size: 17px; margin: 8px 0; color: var(--blue-deep); line-height: 1.5; }
.news-card p { font-size: 14px; color: var(--text-2); }

/* 文章页 */
.article { max-width: 860px; margin: 0 auto; }
.article h1 { font-size: 28px; color: var(--blue-deep); line-height: 1.4; margin-bottom: 10px; }
.article .meta { color: var(--text-2); font-size: 14px; margin-bottom: 30px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.article p { margin: 16px 0; color: var(--text); }
.article h3 { color: var(--blue-deep); margin: 28px 0 10px; font-size: 20px; }

/* ===== 关于/团队 ===== */
.profile { display: flex; gap: 30px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 34px; }
.profile + .profile { margin-top: 24px; }
.profile .avatar {
  flex-shrink: 0; width: 150px; height: 190px; border-radius: 12px;
  background: linear-gradient(160deg, var(--blue-light), #d6e3f7);
  display: flex; align-items: center; justify-content: center;
  color: var(--blue-dark); font-size: 52px; font-weight: 700;
}
.profile h3 { font-size: 22px; color: var(--blue-deep); }
.profile .title { color: var(--gold); font-size: 14px; margin: 4px 0 14px; }
.profile .roles { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.profile .roles span {
  font-size: 12.5px; background: var(--blue-light); color: var(--blue-dark);
  padding: 3px 12px; border-radius: 999px;
}
.profile p { font-size: 15px; color: var(--text-2); margin: 8px 0; }

/* ===== 联系 ===== */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.contact-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; text-align: center; }
.contact-card .icon { font-size: 30px; margin-bottom: 10px; }
.contact-card h3 { color: var(--blue-deep); font-size: 17px; margin-bottom: 8px; }
.contact-card p { color: var(--text-2); font-size: 15px; word-break: break-all; }

/* ===== 页脚 ===== */
.site-footer { background: var(--blue-deep); color: #b9c8e6; padding: 44px 0 26px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 30px; margin-bottom: 26px; }
.site-footer h4 { color: #fff; font-size: 16px; margin-bottom: 12px; }
.site-footer a { color: #b9c8e6; display: block; padding: 3px 0; font-size: 14px; }
.site-footer a:hover { color: #fff; }
.site-footer p { font-size: 14px; margin: 4px 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.15); padding-top: 18px; text-align: center; font-size: 13px; }
.footer-bottom .beian { color: #b9c8e6; }

/* 响应式 */
@media (max-width: 900px) {
  .grid-2, .grid-3, .news-grid, .contact-grid, .training-summary { grid-template-columns: 1fr; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .patent-list { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 32px; }
  .header-inner { flex-direction: column; height: auto; padding: 10px 0; gap: 8px; }
  .profile { flex-direction: column; }
}

/* ===== 培训照片墙 ===== */
.training-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.photo-card {
  background: #fff; border: 1px solid var(--line); border-radius: 10px;
  overflow: hidden; transition: all .2s; display: block; color: inherit;
}
.photo-card:hover { box-shadow: 0 10px 24px rgba(11,61,145,.12); transform: translateY(-3px); }
.photo-card img { width: 100%; height: 165px; object-fit: cover; display: block; }
.photo-card .cap { padding: 9px 12px; text-align: center; }
.photo-card .cap b { display: block; color: var(--blue-dark); font-size: 14px; }
.photo-card .cap span { color: var(--text-2); font-size: 12.5px; }

/* 首页掠影 */
.gallery-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.gallery-strip img { width: 100%; height: 170px; object-fit: cover; border-radius: 10px; }
@media (max-width: 900px) { .gallery-strip { grid-template-columns: repeat(2, 1fr); } }

/* 地图 */
.map-wrap { max-width: 760px; margin: 0 auto; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.map-wrap img { width: 100%; display: block; }
.map-note { text-align: center; color: var(--text-2); font-size: 13px; margin-top: 10px; }

/* 简易灯箱 */
.lightbox { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.85); z-index: 200; align-items: center; justify-content: center; flex-direction: column; cursor: zoom-out; }
.lightbox.show { display: flex; }
.lightbox img { max-width: 92vw; max-height: 88vh; border-radius: 8px; }
.lightbox .lb-cap { color: #fff; margin-top: 12px; font-size: 15px; }

/* ===== 课程体系 ===== */
.course-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.course-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: all .2s; }
.course-card:hover { box-shadow: 0 12px 30px rgba(11,61,145,.10); transform: translateY(-3px); }
.course-card > img { width: 100%; height: 200px; object-fit: cover; display: block; }
.course-body { padding: 20px 24px 24px; }
.course-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.course-head h4 { color: var(--blue-deep); font-size: 18px; }
.course-tag { flex-shrink: 0; font-size: 12px; padding: 3px 12px; border-radius: 999px; background: #fdf6e7; color: #a07716; border: 1px solid #ecd9a8; }
.course-body ol { margin-left: 20px; }
.course-body li { color: var(--text-2); font-size: 14.5px; padding: 3px 0; }
@media (max-width: 900px) { .course-grid { grid-template-columns: 1fr; } }

/* 员工风采 */
.staff-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.staff-grid img { width: 100%; border-radius: var(--radius); border: 1px solid var(--line); }
@media (max-width: 900px) { .staff-grid { grid-template-columns: 1fr; } }
.profile .avatar { padding: 0; overflow: hidden; }
.profile .avatar img { width: 100%; height: 100%; object-fit: cover; border-radius: 12px; }