/* ==================================================
   慈溪明峰医院 · 结石特色专科 全站主样式
   从首页内联样式提取，全站共用
   ================================================== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; scroll-behavior: smooth; }
body {
  font-family: 'Alibaba PuHuiTi', sans-serif;
  color: #333;
  background: #fff;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; }

/* ---------- 设计变量 ---------- */
:root {
  --blue: #3255a7;
  --blue-deep: #274894;
  --blue-title: #3454aa;
  --blue-card: #4b72b7;
  --green: #90c542;
  --green-dark: #7fb332;
  --teal: #3aa78d;
  --gray-bg: #f6f7fa;
  --footer-bg: #2e3137;
  --radius: 16px;
  --ease: cubic-bezier(.4, 0, .2, 1);
  --shadow-sm: 0 1px 4px rgba(30, 60, 120, .05);
  --shadow-md: 0 8px 24px rgba(30, 60, 120, .12);
}

.container {
  width: 100%;
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============ 大屏/高分辨率适配变量 ============ */
/* 通过自定义属性集中管理大屏尺寸上限，方便后续维护 */
:root {
  --container-max-base: 1300px;
  --container-max-fhd:  1580px;  /* 1920+  */
  --container-max-2k:   1900px;  /* 2560+ 2K */
  --container-max-4k:   2700px;  /* 3840+ 4K */
}
@media (min-width: 1920px) { .container { max-width: var(--container-max-fhd); } }
@media (min-width: 2560px) { .container { max-width: var(--container-max-2k); } }
@media (min-width: 3840px) { .container { max-width: var(--container-max-4k); } }

/* 统一按钮动效 */
.btn-consult, .btn-book, .btn-appoint, .foot-phone {
  transition: background .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}
.btn-consult:hover, .btn-book:hover, .btn-appoint:hover {
  background: var(--green-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(144, 197, 66, .4);
}
.btn-consult:active, .btn-book:active, .btn-appoint:active { transform: translateY(0); }

/* ============ 顶部导航 ============ */
.header {
  background: #fff;
  box-shadow: 0 1px 4px rgba(0,0,0,.06);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header .container {
  height: 100px;
  display: flex;
  align-items: center;
  min-width: 0; /* 允许 flex 容器收缩，避免被内容撑破 */
}
.logo { flex-shrink: 0; }
.logo img { height: 64px; display: block; transition: opacity .3s var(--ease); }
.logo:hover img { opacity: .82; }
.nav {
  margin-left: 90px;
  display: flex;
  height: 100px;
  min-width: 0;     /* 允许 nav 在空间不足时收缩 */
  overflow: hidden; /* 兜底防线：极端窄屏裁切而非撑破页面 */
}
.nav a {
  display: flex;
  align-items: center;
  padding: 0 28px;
  font-size: 18px;
  color: #333;
  position: relative;
  white-space: nowrap;
  flex-shrink: 1; /* 空间不足时允许链接收缩 */
  min-width: 0;
  transition: color .3s var(--ease);
}
.nav a::after {
  content: "";
  position: absolute;
  left: 28px; right: 28px; bottom: 0;
  height: 4px;
  background: var(--blue-title);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .35s var(--ease);
}
.nav a:hover { color: var(--blue-title); }
.nav a:hover::after { transform: scaleX(1); }
.nav a.active { color: var(--blue-title); font-weight: bold; }
.nav a.active::after { transform: scaleX(1); }
.btn-consult {
  margin-left: auto;
  background: var(--green);
  color: #fff;
  font-size: 16px;
  padding: 14px 30px;
  border-radius: 4px;
  white-space: nowrap;
  flex-shrink: 0;
}

/* 汉堡按钮（移动端） */
.menu-toggle {
  display: none;
  margin-left: auto;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--blue-title);
  border-radius: 2px;
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动端下拉菜单 */
.mobile-nav {
  display: none;
  background: #fff;
  border-top: 1px solid #eef1f6;
  box-shadow: 0 8px 16px rgba(0,0,0,.06);
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s var(--ease);
}
.mobile-nav.open { max-height: 460px; }
.mobile-nav a {
  display: block;
  padding: 13px 28px;
  font-size: 14px;
  color: #333;
  border-bottom: 1px solid #f3f5f9;
  transition: background .25s var(--ease), color .25s var(--ease), padding-left .25s var(--ease);
}
.mobile-nav a:hover, .mobile-nav a.active {
  color: var(--blue-title);
  background: #f6f9ff;
  padding-left: 36px;
}

/* ============ Banner（Swiper 轮播） ============ */
.banner {
  position: relative;
  height: clamp(320px, 30.7vw, 800px);
  /* background: url("../images/BANNER.jpg") center/cover no-repeat #eef3f8; */
  overflow: hidden;
}
.banner-swiper { height: 100%; }
.banner-swiper .swiper-slide { position: relative; }
.banner-swiper .container { position: relative; height: 100%; }
.banner-text {
  position: absolute;
  left: clamp(24px, 6.7%, 96px);
  top: 50%;
  transform: translateY(-56%);
  z-index: 2;
}
.banner-text h1 {
  font-size: clamp(34px, 2.9vw, 44px);
  color: var(--blue-title);
  font-weight: bold;
  letter-spacing: 3px;
  margin-bottom: clamp(16px, 1.7vw, 26px);
}
.banner-tag {
  display: inline-block;
  background: var(--green);
  color: #fff;
  padding: clamp(12px, 1.2vw, 18px) clamp(22px, 2vw, 30px) clamp(10px, 1vw, 16px);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.banner-tag:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 22px rgba(144, 197, 66, .38);
}
.banner-tag strong {
  display: block;
  font-size: clamp(22px, 1.9vw, 28px);
  letter-spacing: 2px;
  font-weight: bold;
  white-space: nowrap;
}
.banner-tag span {
  display: block;
  font-size: clamp(12px, 0.95vw, 15px);
  margin-top: 4px;
  opacity: .9;
}
.banner-doctor {
  position: absolute;
  right: 0;
  bottom: 0;
  height: 100.5%;
  z-index: 1;
  pointer-events: none;
}
/* 左右切换按钮：垂直居中、默认隐藏、悬浮 banner 时平滑显示 */
.banner-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(255,255,255,.92);
  color: var(--blue-title);
  font-size: 26px;
  line-height: 44px;
  text-align: center;
  cursor: pointer;
  z-index: 10;
  font-family: "SimSun", serif;
  box-shadow: 0 1px 4px rgba(0,0,0,.12);
  opacity: 0;
  visibility: hidden;
  transition: opacity .35s var(--ease), visibility .35s var(--ease),
              background .3s var(--ease), color .3s var(--ease), box-shadow .3s var(--ease);
}
.banner:hover .banner-arrow { opacity: 1; visibility: visible; }
.banner-arrow:hover {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 8px 18px rgba(50, 85, 167, .35);
}
.banner-arrow.prev { left: 32px; }
.banner-arrow.next { right: 32px; }
/* 分页指示器 */
.banner-swiper .swiper-pagination {
  bottom: 18px;
  z-index: 5;
}
.banner-swiper .swiper-pagination-bullet {
  width: 9px;
  height: 9px;
  background: #fff;
  opacity: .65;
  margin: 0 5px;
  transition: all .3s var(--ease);
}
.banner-swiper .swiper-pagination-bullet-active {
  width: 24px;
  border-radius: 5px;
  background: var(--green);
  opacity: 1;
}

/* ============ 服务承诺条 ============ */
/* 设计稿：条带通栏，深蓝段向左出血至视口边缘、伸入内容容器约 21%，
   条内内容与页面 1200 容器左右对齐 */
.promise-bar { background: var(--blue); overflow: hidden; }
.promise-inner {
  display: flex;
  align-items: center;
  min-height: 110px;
}
.promise-left {
  position: relative;
  align-self: stretch;
  width: 21.5%;
  flex-shrink: 0;
  background: var(--blue-deep);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 16px clamp(24px, 4%, 60px) 16px 10px;
  font-size: clamp(22px, 1.85vw, 28px);
  font-weight: bold;
  letter-spacing: 2px;
}
/* 深色背景向左出血至视口边缘（不影响单元格内容宽度） */
.promise-left::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  right: 100%;
  width: 50vw;
  background: var(--blue-deep);
}
.promise-left img {
  margin-right: 18px; flex-shrink: 0;
  height: clamp(24px, 2vw, 36px);
}
.promise-items {
  color: #fff;
  font-size: clamp(18px, 1.55vw, 24px);
  letter-spacing: 3px;
  display: flex;
  align-items: center;
  gap: clamp(22px, 3.2vw, 48px);
  flex-wrap: wrap;
  padding-left: clamp(28px, 7.5%, 100px);
}
.btn-book {
  margin-left: auto;
  flex-shrink: 0;
  background: var(--green);
  color: #fff;
  font-size: clamp(18px, 1.55vw, 24px);
  padding: clamp(12px, 1vw, 16px) clamp(28px, 2.4vw, 42px);
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

/* ============ 通用小节标题 ============ */
.sec-title {
  display: flex;
  align-items: center;
  font-size: clamp(22px, 1.85vw, 28px);
  color: #878686;
  font-weight: bold;
}
.sec-title .sec-icon {
  width: clamp(22px, 1.6vw, 26px);
  height: clamp(22px, 1.6vw, 26px);
  margin-right: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ============ 科室简介 ============ */
.intro { background: var(--gray-bg); padding: clamp(48px, 4.8vw, 84px) 0 clamp(56px, 5.5vw, 96px); }
.intro-card {
  background: #fff;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: clamp(32px, 3.8vw, 72px);
  padding: clamp(36px, 4vw, 68px) clamp(36px, 4.6vw, 80px);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .35s var(--ease);
}
.intro-card:hover { box-shadow: var(--shadow-md); }
.intro-text { min-width: 0; }
.intro-text h2 {
  font-size: clamp(28px, 2.6vw, 40px);
  color: #1a1a1a;
  font-weight: 800;
  line-height: 1.5;
  letter-spacing: 2px;
  margin-bottom: clamp(20px, 2vw, 32px);
}
.intro-text h2>span{
  font-size: clamp(34px, 3vw, 46px);
}
.intro-text p {
  font-size: clamp(14px, 1.15vw, 17px);
  color: #777;
  line-height: 2;
  text-align: justify;
}
.intro-text p + p { margin-top: 14px; }
.intro-photo img {
  width: 100%;
  height: clamp(280px, 28vw, 480px);
  object-fit: cover;
  display: block;
  border-radius: 12px;
  transition: transform .4s var(--ease);
}
.intro-photo:hover img { transform: scale(1.02); }

.tech-cards {
  margin-top: clamp(32px, 3.2vw, 56px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(18px, 2vw, 36px);
}
.tech-card {
  background: #fff;
  padding: clamp(24px, 2.4vw, 40px) clamp(8px, 9px, 10px) clamp(24px, 2.4vw, 36px);
  text-align: center;
  border-bottom: 3px solid var(--blue-title);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.tech-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-bottom-color: var(--green);
}
.tech-card h3 {
  font-size: clamp(17px, 1.5vw, 22px);
  color: var(--blue-title);
  font-weight: bold;
  margin-bottom: clamp(10px, 1vw, 16px);
  transition: color .3s var(--ease);
}
.tech-card:hover h3 { color: var(--blue); }
.tech-card p {
  font-size: clamp(13px, 1.1vw, 16px);
  color: #999;
  line-height: 1.9;
}

/* ============ 专家团队 ============ */
.doctors { background: #fff; padding: clamp(48px, 4.8vw, 84px) 0 clamp(12px, 1.2vw, 20px); }
.doctor-cards {
  margin-top: clamp(28px, 3vw, 48px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(18px, 2vw, 36px);
}
.doctor-card {
  position: relative;
  background: #fff;
  border: 1px solid #eee;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.doctor-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: #d8e2f2;
}
/* 医生照片：完整显示，不变形、不裁切 */
.doctor-card .photo {
  overflow: hidden;
  background: #f2f5f9;
  line-height: 0;
  /* aspect-ratio: 311 / 373; */
}
.doctor-card .photo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  transition: transform .5s var(--ease);
}
.doctor-card:hover .photo img { transform: scale(1.06); }
.doctor-card .info {
  min-height: 54px;
  display: flex;
  align-items: center;
  padding: clamp(8px, 0.8vw, 14px) clamp(14px, 1.1vw, 20px);
}
.doctor-card .info .name { font-size: clamp(20px, 1.75vw, 26px); color: #000; }
.doctor-card .info .title { margin-left: auto; font-size: clamp(14px, 1.2vw, 18px); color: #999; text-align: right; }
/* 悬浮遮罩：默认隐藏，hover 时平滑淡入，四卡完全一致 */
.doctor-card .overlay {
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: absolute;
  inset: 0;
  background: rgba(75,114,183,.88);
  color: #fff;
  padding: clamp(23px, 2.4vw, 40px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .35s var(--ease), visibility .35s var(--ease),
              background .35s var(--ease);
}
.doctor-card:hover .overlay {
  opacity: 1;
  visibility: visible;
  background: rgba(58,94,160,.92);
}
.doctor-card .overlay h4 { font-size: clamp(20px, 1.75vw, 26px); margin-bottom: 4px; }
.doctor-card .overlay .sub { font-size: clamp(17px, 1.5vw, 22px); opacity: .95; margin-bottom: clamp(12px, 1.3vw, 22px); }
.doctor-card .overlay ul li {
  font-size: clamp(14px, 1.2vw, 18px);
  line-height: 2.1;
  opacity: .95;
}

/* ============ 科室四大优势 ============ */
.advantages { background: #fff; padding: clamp(48px, 4.8vw, 84px) 0 clamp(56px, 6vw, 104px); }
.adv-list {
  margin-top: clamp(36px, 4vw, 72px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(8px, 0.9vw, 14px);
}
.adv-item {
  display: flex;
  align-items: center;
  padding: clamp(18px, 1.8vw, 32px) clamp(4px, 0.4vw, 8px);
  border-radius: 10px;
  transition: background .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}
.adv-item:hover {
  background: #f6f9ff;
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}
.adv-icon {
  width: clamp(70px, 80px, 90px);
  height: clamp(70px, 80px, 90px);
  border-radius: 50%;
  border: 1px solid #c9d4e8;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: clamp(8px, 0.8vw, 16px);
  flex-shrink: 0;
  transition: background .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease);
}
.adv-icon img { width: 50%; height: 50%; object-fit: contain; transition: transform .3s var(--ease); }
.adv-item:hover .adv-icon {
  background: var(--blue);
  border-color: var(--blue);
  transform: scale(1.08);
}
.adv-item:hover .adv-icon img {
  filter:  brightness(0) invert(1);
}
.adv-text h4 { font-size: clamp(18px, 1.55vw, 22px); color: #333; margin-bottom: clamp(7px, 0.7vw, 12px); }
.adv-text p { font-size: clamp(13px, 14px, 15px); color: #999; line-height: 1.9; }

/* ============ 配套诊疗 ============ */
.diagnosis {
  background-image: url(../images/bg2.jpg);
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  padding: clamp(56px, 5.8vw, 100px) 0 clamp(64px, 6.4vw, 112px);
  text-align: left;
  color: #fff;
}
.diagnosis .sec-title {
  color: #fff;
  font-size: clamp(20px, 1.7vw, 24px);
  letter-spacing: 2px;
}
.diagnosis .desc {
  margin-top: clamp(24px, 2.6vw, 44px);
  font-size: clamp(20px, 28px, 32px);
  line-height: 2.2;
  letter-spacing: 2px;
  color: rgba(255,255,255,.92);
}

/* ============ 页脚 ============ */
.footer { background: var(--footer-bg); padding: clamp(28px, 3vw, 52px) 0; }
.footer .container {
  display: grid;
  grid-template-columns: 1.15fr 1fr 1.35fr 1fr;
  align-items: stretch;
}
.foot-col {
  padding: clamp(6px, 0.6vw, 12px) clamp(22px, 2.4vw, 44px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.foot-col + .foot-col { border-left: 1px solid #454a52; }
.foot-col:first-child { padding-left: 0; }
.foot-hotline-label { color: #fff; font-size: clamp(24px, 2vw, 30px); font-weight: bold; margin-bottom: clamp(10px, 1.2vw, 20px); letter-spacing: 1px; }
.foot-phone {
  background: var(--green);
  color: #fff;
  font-size: clamp(28px, 2.55vw, 38px);
  letter-spacing: 3px;
  padding: clamp(8px, 0.85vw, 14px) clamp(18px, 1.8vw, 32px);
  display: inline-block;
  width: fit-content;
  border-radius: 8px;
}
.foot-phone:hover {
  background: var(--green-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(144, 197, 66, .35);
}
.foot-label { color: #cfd3d9; font-size: clamp(13px, 1.1vw, 16px); margin-bottom: clamp(8px, 0.9vw, 16px); }
.foot-text { color: #9aa0a8; font-size: clamp(13px, 1.05vw, 16px); line-height: 2; }
.foot-appoint-label { color: #cfd3d9; font-size: clamp(13px, 1.05vw, 16px); margin-bottom: clamp(10px, 1.2vw, 20px); }
.btn-appoint {
  background: var(--green);
  color: #fff;
  font-size: clamp(15px, 1.25vw, 18px);
  padding: clamp(10px, 1vw, 16px) clamp(24px, 2.4vw, 40px);
  display: inline-block;
  width: fit-content;
  border-radius: 3px;
}
.copyright {
  background: #181818;
  color: #777;
  font-size: clamp(12px, 0.95vw, 14px);
  text-align: center;
  padding: clamp(12px, 1.1vw, 20px) 16px;
  letter-spacing: normal;
  line-height: normal;
}
.copyright span { margin: 0 clamp(14px, 1.5vw, 30px); }

/* ==================================================
   内页公共样式（子页面页头、卡片、文章块等）
   ================================================== */

/* 内页页头横幅：沿用首页蓝绿配色与圆角语言 */
.page-banner {
  position: relative;
  background: linear-gradient(115deg, #2c4d9c 0%, #3f66b4 55%, #3255a7 100%);
  color: #fff;
  padding: clamp(64px, 7vw, 120px) 0 clamp(56px, 6vw, 104px);
  overflow: hidden;
}
.page-banner::after {
  content: "";
  position: absolute;
  right: -6%;
  top: -30%;
  width: 46%;
  height: 170%;
  background: rgba(255, 255, 255, .06);
  border-radius: 50%;
  pointer-events: none;
}
.page-banner h1 {
  font-size: clamp(30px, 3vw, 46px);
  font-weight: bold;
  letter-spacing: 4px;
  margin-bottom: clamp(14px, 1.4vw, 22px);
}
.page-banner .sub {
  display: inline-block;
  background: var(--green);
  color: #fff;
  font-size: clamp(13px, 1.05vw, 16px);
  letter-spacing: 2px;
  padding: clamp(8px, 0.8vw, 12px) clamp(18px, 1.8vw, 28px);
  border-radius: 3px;
}
.crumb {
  margin-top: clamp(16px, 1.6vw, 26px);
  font-size: clamp(13px, 1vw, 15px);
  color: rgba(255, 255, 255, .75);
  letter-spacing: 1px;
}
.crumb a { color: rgba(255, 255, 255, .75); transition: color .3s var(--ease); }
.crumb a:hover { color: #fff; }
.crumb .sep { margin: 0 10px; }

/* 内页内容区块 */
.page-section { padding: clamp(48px, 4.8vw, 84px) 0; }
.page-section.gray { background: var(--gray-bg); }
/* .page-section + .page-section { padding-top: 0; } */
.page-section.gray + .page-section.gray { padding-top: clamp(48px, 4.8vw, 84px); }

/* 图文卡片（沿用首页 intro-card 语言） */
.info-card {
  background: #fff;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: clamp(32px, 3.8vw, 72px);
  padding: clamp(36px, 4vw, 68px) clamp(36px, 4.6vw, 80px);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .35s var(--ease);
}
.info-card:hover { box-shadow: var(--shadow-md); }
.info-card.reverse .info-photo { order: -1; }
.info-card + .info-card { margin-top: clamp(28px, 3vw, 48px); }
.info-photo img {
  width: 100%;
  height: clamp(240px, 24vw, 400px);
  object-fit: cover;
  display: block;
  border-radius: 12px;
  transition: transform .4s var(--ease);
}
.info-photo:hover img { transform: scale(1.02); }

/* 数据指标条 */
.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(18px, 2vw, 36px);
  margin-top: clamp(32px, 3.2vw, 56px);
}
.stat-item {
  background: #fff;
  border-radius: 16px;
  border-bottom: 3px solid var(--blue-title);
  box-shadow: var(--shadow-sm);
  text-align: center;
  padding: clamp(26px, 2.6vw, 44px) 12px;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.stat-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-bottom-color: var(--green);
}
.stat-item .num {
  font-size: clamp(30px, 2.8vw, 44px);
  font-weight: 800;
  color: var(--blue-title);
  letter-spacing: 1px;
}
.stat-item .num small { font-size: .5em; font-weight: bold; margin-left: 2px; }
.stat-item .label {
  margin-top: clamp(8px, 0.8vw, 14px);
  font-size: clamp(14px, 1.15vw, 17px);
  color: #999;
  letter-spacing: 1px;
}

/* 病种/技术卡片网格（可点击，带描述） */
.item-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(18px, 2vw, 36px);
  margin-top: clamp(32px, 3.2vw, 56px);
}
.item-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.item-card {
  background: #fff;
  border-radius: 16px;
  border-bottom: 3px solid var(--blue-title);
  box-shadow: var(--shadow-sm);
  padding: clamp(28px, 2.8vw, 46px) clamp(24px, 2.4vw, 40px);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.item-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-bottom-color: var(--green);
}
.item-card .tag {
  display: inline-block;
  background: #eef3fc;
  color: var(--blue-title);
  font-size: clamp(12px, 1vw, 14px);
  letter-spacing: 1px;
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: clamp(14px, 1.3vw, 20px);
}
.item-card h3 {
  font-size: clamp(19px, 1.65vw, 24px);
  color: var(--blue-title);
  font-weight: bold;
  margin-bottom: clamp(10px, 1vw, 16px);
  transition: color .3s var(--ease);
}
.item-card:hover h3 { color: var(--blue); }
.item-card p {
  font-size: clamp(13px, 1.1vw, 16px);
  color: #999;
  line-height: 1.9;
}
.item-card ul { margin-top: clamp(10px, 1vw, 16px); }
.item-card ul li {
  position: relative;
  font-size: clamp(13px, 1.05vw, 15px);
  color: #777;
  line-height: 2;
  padding-left: 16px;
}
.item-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
}

/* 专家团队主页：可点击卡片 + 简介区 */
a.doctor-card, a.tech-card { display: block; color: inherit; }
.doctor-card .brief { padding: 0 clamp(14px, 1.1vw, 20px) clamp(14px, 1.4vw, 22px); }
.doctor-card .brief .spec {
  font-size: clamp(12px, 1vw, 14px);
  color: #777;
  line-height: 1.8;
}
.doctor-card .brief .hl {
  margin-top: 6px;
  font-size: clamp(12px, 1vw, 13px);
  color: var(--green-dark);
  font-weight: bold;
  line-height: 1.6;
}
.doc-more {
  display: inline-flex;
  align-items: center;
  margin-top: 10px;
  font-size: clamp(12px, 1vw, 14px);
  color: var(--blue-title);
  font-weight: bold;
  letter-spacing: 1px;
}
.doc-more::after { content: "→"; margin-left: 8px; transition: transform .3s var(--ease); }
.doctor-card:hover .doc-more::after { transform: translateX(5px); }

/* 专家详情子页：照片卡 + 详细介绍 */
.doc-profile {
  display: grid;
  grid-template-columns: minmax(260px, 360px) 1fr;
  gap: clamp(28px, 3vw, 56px);
  align-items: start;
}
.doc-photo {
  background: #fff;
  border: 1px solid #eee;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.doc-photo img {
  width: 100%;
  aspect-ratio: 311 / 373;
  object-fit: contain;
  background: #f2f5f9;
  display: block;
}
.doc-photo .dp-info { padding: clamp(14px, 1.4vw, 22px); text-align: center; }
.doc-photo .dp-info .name { font-size: clamp(20px, 1.75vw, 26px); font-weight: bold; color: #000; }
.doc-photo .dp-info .title { margin-top: 4px; font-size: clamp(13px, 1.1vw, 15px); color: #999; }
.doc-detail .lead {
  font-size: clamp(14px, 1.15vw, 17px);
  color: #777;
  line-height: 2;
  text-align: justify;
}
.doc-chips {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(8px, 0.8vw, 14px);
  margin-top: clamp(16px, 1.6vw, 26px);
}
.doc-chips .chip {
  background: #eef3fc;
  color: var(--blue-title);
  font-size: clamp(13px, 1.05vw, 15px);
  font-weight: bold;
  letter-spacing: 1px;
  padding: 8px 18px;
  border-radius: 20px;
}
.doc-sec { margin-top: clamp(20px, 2vw, 32px); }
@media (max-width: 992px) {
  .doc-profile { grid-template-columns: 1fr; }
  .doc-photo { max-width: 400px; margin: 0 auto; }
}

/* 技术详情区块（微创碎石技术页：四大核心手术） */
.tech-block {
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  padding: clamp(28px, 3vw, 48px) clamp(24px, 3vw, 48px);
  transition: box-shadow .35s var(--ease);
}
.tech-block:hover { box-shadow: var(--shadow-md); }
.tech-block + .tech-block { margin-top: clamp(24px, 2.6vw, 44px); }
.tb-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 16px;
  padding-bottom: clamp(16px, 1.6vw, 26px);
  border-bottom: 1px solid #eef1f6;
  margin-bottom: clamp(18px, 1.8vw, 28px);
}
.tb-num {
  font-size: clamp(26px, 2.4vw, 38px);
  font-weight: 800;
  color: #dbe5f6;
  letter-spacing: 2px;
  line-height: 1;
  transition: color .3s var(--ease);
}
.tech-block:hover .tb-num { color: var(--green); }
.tb-head h3 {
  font-size: clamp(20px, 1.8vw, 26px);
  color: var(--blue-title);
  font-weight: bold;
  letter-spacing: 1px;
}
.tb-head .tag {
  margin-left: auto;
  display: inline-block;
  background: #eef3fc;
  color: var(--blue-title);
  font-size: clamp(12px, 1vw, 14px);
  letter-spacing: 1px;
  padding: 5px 14px;
  border-radius: 20px;
}
.tb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: clamp(20px, 2.4vw, 40px);
}
.tb-sec h4 {
  font-size: clamp(16px, 1.4vw, 19px);
  color: #333;
  font-weight: bold;
  line-height: 1.4;
  padding-left: 12px;
  border-left: 3px solid var(--green);
  margin-bottom: clamp(10px, 1vw, 16px);
}
.tb-sec p {
  font-size: clamp(13px, 1.05vw, 15px);
  color: #777;
  line-height: 2;
}
.tb-sec ul li {
  position: relative;
  font-size: clamp(13px, 1.05vw, 15px);
  color: #777;
  line-height: 2;
  padding-left: 16px;
}
.tb-sec ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
}
/* 禁忌人群小节：暖色警示 */
.tb-sec.warn h4 { border-left-color: #d05a4e; }
.tb-sec.warn ul li::before { background: #d05a4e; }

/* 病种总览：整卡可点击跳转 */
.item-card.card-link { display: block; color: inherit; }
.item-card.card-link .more {
  display: inline-flex;
  align-items: center;
  margin-top: clamp(12px, 1.2vw, 18px);
  font-size: clamp(13px, 1.05vw, 15px);
  color: var(--blue-title);
  font-weight: bold;
  letter-spacing: 1px;
  transition: color .3s var(--ease);
}
.item-card.card-link .more::after {
  content: "→";
  margin-left: 8px;
  transition: transform .3s var(--ease);
}
.item-card.card-link:hover .more { color: var(--blue); }
.item-card.card-link:hover .more::after { transform: translateX(5px); }

/* 蓝色提示条内的描边按钮（返回总览等次级操作） */
.btn-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, .75);
  color: #fff;
  font-size: clamp(15px, 1.25vw, 18px);
  padding: clamp(10px, 1vw, 16px) clamp(24px, 2.4vw, 40px);
  border-radius: 3px;
  margin-left: 14px;
  transition: background .3s var(--ease), color .3s var(--ease), transform .3s var(--ease);
}
.btn-line:hover { background: #fff; color: var(--blue-title); transform: translateY(-2px); }
.notice-band .btn-line { margin-top: clamp(24px, 2.4vw, 40px); }

/* 流程步骤条 */
.step-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(18px, 2vw, 36px);
  margin-top: clamp(32px, 3.2vw, 56px);
  counter-reset: step;
}
.step-item {
  position: relative;
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  padding: clamp(30px, 3vw, 50px) clamp(22px, 2.2vw, 36px) clamp(26px, 2.6vw, 42px);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.step-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.step-item::before {
  counter-increment: step;
  content: "0" counter(step);
  display: block;
  font-size: clamp(30px, 2.8vw, 44px);
  font-weight: 800;
  color: #dbe5f6;
  letter-spacing: 2px;
  margin-bottom: clamp(10px, 1vw, 16px);
  transition: color .3s var(--ease);
}
.step-item:hover::before { color: var(--green); }
.step-item h4 {
  font-size: clamp(17px, 1.5vw, 21px);
  color: var(--blue-title);
  font-weight: bold;
  margin-bottom: clamp(8px, 0.9vw, 14px);
}
.step-item p { font-size: clamp(13px, 1.05vw, 15px); color: #999; line-height: 1.9; }

/* 科普文章列表 */
.article-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(18px, 2vw, 36px);
  margin-top: clamp(32px, 3.2vw, 56px);
}
.article-card {
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.article-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.article-card .art-head {
  background: linear-gradient(115deg, #2c4d9c 0%, #3f66b4 60%, #4b72b7 100%);
  color: #fff;
  padding: clamp(24px, 2.4vw, 40px) clamp(22px, 2.2vw, 36px);
  min-height: clamp(110px, 10vw, 150px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.article-card .art-head::after {
  content: "";
  position: absolute;
  right: -30px;
  bottom: -46px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: rgba(144, 197, 66, .25);
}
.article-card .art-head .cat {
  font-size: clamp(12px, 1vw, 14px);
  letter-spacing: 2px;
  opacity: .85;
  margin-bottom: 8px;
}
.article-card .art-head h3 {
  font-size: clamp(18px, 1.55vw, 22px);
  font-weight: bold;
  letter-spacing: 1px;
  line-height: 1.5;
}
.article-card .art-body { padding: clamp(22px, 2.2vw, 34px) clamp(22px, 2.2vw, 36px); flex: 1; }
.article-card .art-body p {
  font-size: clamp(13px, 1.1vw, 16px);
  color: #999;
  line-height: 1.9;
}
.article-card .art-body ul { margin-top: 10px; }
.article-card .art-body ul li {
  position: relative;
  font-size: clamp(13px, 1.05vw, 15px);
  color: #777;
  line-height: 2;
  padding-left: 16px;
}
.article-card .art-body ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
}

/* 新闻文章列表（科普页） */
.news-list { margin-top: clamp(32px, 3.2vw, 56px); background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-sm); overflow: hidden; }
.news-item {
  display: flex;
  align-items: center;
  gap: clamp(14px, 1.6vw, 26px);
  padding: clamp(18px, 1.8vw, 28px) clamp(20px, 2.4vw, 38px);
  color: inherit;
  border-bottom: 1px solid #f0f4f5;
  transition: background .3s;
}
.news-item:last-child { border-bottom: none; }
.news-item:hover { background: #f6fbfa; }
.news-item .n-num {
  flex: none;
  font-size: clamp(18px, 1.6vw, 24px);
  font-weight: 700;
  color: #d5e4e2;
  transition: color .3s;
  min-width: 2.2em;
}
.news-item:hover .n-num { color: var(--green); }
.news-item .n-title {
  flex: 1;
  font-size: clamp(15px, 1.25vw, 18px);
  font-weight: 600;
  color: #22313a;
  line-height: 1.6;
  transition: color .3s;
}
.news-item:hover .n-title { color: var(--green); }
.news-item .n-date {
  flex: none;
  font-size: clamp(12px, 1vw, 14px);
  color: #aab6ba;
}
.news-item .n-arrow {
  flex: none;
  color: #c9d6d4;
  font-size: clamp(15px, 1.3vw, 18px);
  transition: transform .3s, color .3s;
}
.news-item:hover .n-arrow { transform: translateX(6px); color: var(--green); }

/* 分页组件 */
.pagination {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(28px, 2.8vw, 44px);
}
.pagination a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 42px;
  padding: 0 14px;
  border-radius: 10px;
  background: #fff;
  color: #4a5a62;
  font-size: 14px;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  transition: all .3s;
}
.pagination a:hover { color: var(--green); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.pagination a.cur {
  background: linear-gradient(135deg, var(--green), var(--teal));
  color: #fff;
  cursor: default;
}
.pagination a.cur:hover { transform: none; }
.pagination a.cur--teal {
  background: linear-gradient(135deg, var(--teal), var(--blue));
  color: #fff;
  cursor: default;
}
.pagination a.cur--teal:hover { transform: none; color: #fff; }

/* 文章详情页 */
.article-detail {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: clamp(28px, 3.4vw, 60px) clamp(22px, 4vw, 72px);
  margin-top: clamp(32px, 3.2vw, 56px);
}
.article-detail .ad-title {
  font-size: clamp(22px, 2.2vw, 32px);
  font-weight: 700;
  color: #22313a;
  line-height: 1.5;
  text-align: center;
}
.article-detail .ad-meta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 26px;
  margin-top: 14px;
  padding-bottom: clamp(20px, 2vw, 30px);
  border-bottom: 1px solid #eef3f3;
  font-size: clamp(12px, 1.05vw, 14px);
  color: #9aa8ad;
}
.article-detail .ad-meta b { color: var(--green); font-weight: 600; }
.article-detail .ad-body { margin-top: clamp(22px, 2.2vw, 34px); }
.article-detail .ad-body p {
  font-size: clamp(14px, 1.15vw, 16px);
  color: #4a5a62;
  line-height: 2.1;
  margin-bottom: 1.2em;
}
.article-detail .ad-body h3 {
  font-size: clamp(17px, 1.5vw, 21px);
  font-weight: 700;
  color: #22313a;
  margin: 1.6em 0 .8em;
  padding-left: 12px;
  border-left: 4px solid var(--green);
}
.article-detail .ad-body ul { margin: 0 0 1.2em; }
.article-detail .ad-body ul li {
  position: relative;
  font-size: clamp(14px, 1.15vw, 16px);
  color: #4a5a62;
  line-height: 2;
  padding-left: 18px;
}
.article-detail .ad-body ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .85em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
}
.article-detail .ad-tip {
  margin-top: clamp(22px, 2.2vw, 34px);
  padding: clamp(16px, 1.8vw, 26px) clamp(18px, 2vw, 30px);
  background: #f2faf7;
  border-left: 4px solid var(--green);
  border-radius: 0 12px 12px 0;
  font-size: clamp(13px, 1.1vw, 15px);
  color: #3d5a50;
  line-height: 1.9;
}

@media (max-width: 900px) {
  .news-item { flex-wrap: wrap; gap: 4px 12px; }
  .news-item .n-num { min-width: 0; }
  .news-item .n-date { order: 4; width: 100%; }
}

/* FAQ 折叠（details 实现，无脚本依赖） */
.faq-list { margin-top: clamp(32px, 3.2vw, 56px); }
.faq-item {
  background: #fff;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  margin-bottom: clamp(14px, 1.4vw, 22px);
  overflow: hidden;
  transition: box-shadow .35s var(--ease);
}
.faq-item:hover { box-shadow: var(--shadow-md); }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  padding: clamp(18px, 1.8vw, 28px) clamp(22px, 2.2vw, 36px);
  font-size: clamp(16px, 1.4vw, 20px);
  color: var(--blue-title);
  font-weight: bold;
  transition: color .3s var(--ease);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  margin-left: auto;
  font-size: clamp(20px, 1.8vw, 26px);
  color: var(--green);
  font-weight: bold;
  transition: transform .3s var(--ease);
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-a {
  padding: 0 clamp(22px, 2.2vw, 36px) clamp(20px, 2vw, 30px);
  font-size: clamp(13px, 1.1vw, 16px);
  color: #777;
  line-height: 2;
}

/* 内页蓝色提示条（沿用首页 diagnosis 语言） */
.notice-band {
  background-image: url(../images/bg2.jpg);
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  padding: clamp(48px, 5vw, 88px) 0;
  color: #fff;
}
.notice-band .sec-title { color: #fff; font-size: clamp(20px, 1.7vw, 24px); letter-spacing: 2px; }
.notice-band .desc {
  margin-top: clamp(20px, 2.2vw, 36px);
  font-size: clamp(16px, 1.5vw, 22px);
  line-height: 2.1;
  letter-spacing: 1px;
  color: rgba(255, 255, 255, .92);
}
.notice-band .btn-book { margin-top: clamp(24px, 2.4vw, 40px); margin-left: 0; width: fit-content;}

/* 内页响应式 */
@media (max-width: 992px) {
  .item-grid, .article-list { grid-template-columns: repeat(2, 1fr); }
  .item-grid.cols-2 { grid-template-columns: 1fr; }
  .step-row, .stat-row { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .info-card { grid-template-columns: 1fr; gap: 24px; padding: 28px 24px; }
  .info-card.reverse .info-photo { order: 0; }
  .info-photo img { height: auto; aspect-ratio: 4/3; }
}
@media (max-width: 576px) {
  .item-grid, .article-list, .step-row, .stat-row { grid-template-columns: 1fr; }
}

/* ==================================================
   高分辨率大屏适配
   - 1920+ (Full HD+) ：基础拉宽容器
   - 2560+ (2K)       ：约 1.25× 放大（字号、间距、容器）
   - 3840+ (4K)       ：约 1.5× 放大（字号、间距、容器）
   ================================================== */

/* 2K 大屏 */
@media (min-width: 2560px) {
  /* 顶部 */
  .header .container { height: 130px; }
  .logo img { height: 72px; }
  .nav { margin-left: 80px; height: 130px; }
  .nav a { padding: 0 24px; font-size: 22px; }
  .nav a::after { height: 5px; left: 24px; right: 24px; }
  .btn-consult { font-size: 20px; padding: 16px 32px; border-radius: 5px; }

  /* Banner */
  .banner-text h1 { font-size: clamp(40px, 3.6vw, 56px); letter-spacing: 4px; margin-bottom: 28px; }
  .banner-tag strong { font-size: clamp(24px, 2.2vw, 36px); letter-spacing: 3px; }
  .banner-tag span { font-size: 16px; }
  .banner-tag { padding: clamp(14px, 1.4vw, 22px) clamp(28px, 2.4vw, 36px) clamp(12px, 1.2vw, 20px); border-radius: 3px; }
  .banner-arrow { width: 60px; height: 60px; font-size: 34px; line-height: 58px; }
  .banner-arrow.prev { left: 48px; }
  .banner-arrow.next { right: 48px; }

  /* 服务承诺 */
  .promise-inner { min-height: 130px; }
  .promise-left { font-size: 30px; letter-spacing: 3px; padding: 20px clamp(28px, 4%, 70px) 20px 12px; }
  .promise-left img { margin-right: 22px; height: 40px; }
  .promise-items { font-size: 24px; letter-spacing: 4px; gap: 56px; }
  .btn-book { font-size: 22px; padding: 14px 44px; gap: 10px; border-radius: 3px; }

  /* 通用小节标题 */
  .sec-title { font-size: 30px; letter-spacing: 1px; }
  .sec-title .sec-icon { width: 30px; height: 30px; margin-right: 14px; }

  /* 简介区 */
  .intro-card { padding: 60px 76px; gap: 80px; border-radius: 20px; }
  .intro-text h2 { font-size: clamp(36px, 3.4vw, 48px); letter-spacing: 3px; margin-bottom: 28px; line-height: 1.5; }
  .intro-text h2 > span { font-size: clamp(42px, 4vw, 56px); }
  .intro-text p { font-size: 18px; line-height: 2.2; }
  .intro-text p + p { margin-top: 16px; }
  .intro-photo img { height: 480px; border-radius: 16px; }

  /* 技术卡 */
  .tech-cards { margin-top: 56px; gap: 36px; }
  .tech-card { padding: 40px 22px 36px; border-bottom-width: 4px; border-radius: 18px; }
  .tech-card h3 { font-size: 23px; margin-bottom: 14px; }
  .tech-card p { font-size: 17px; line-height: 2; }

  /* 专家卡 */
  .doctor-cards { margin-top: 48px; gap: 36px; }
  .doctor-card { border-radius: 6px; border-width: 2px; }
  .doctor-card .info { min-height: 66px; padding: 14px 22px; }
  .doctor-card .info .name { font-size: 27px; }
  .doctor-card .info .title { font-size: 19px; }
  .doctor-card .overlay { padding: 48px 60px; }
  .doctor-card .overlay h4 { font-size: 27px; }
  .doctor-card .overlay .sub { font-size: 23px; margin-bottom: 22px; }
  .doctor-card .overlay ul li { font-size: 19px; line-height: 2.2; }

  /* 四大优势 */
  .adv-list { margin-top: 64px; gap: 36px; }
  .adv-item { padding: 28px 6px; border-radius: 12px; }
  .adv-icon { width: 100px; height: 100px; border-width: 2px; }
  .adv-text h4 { font-size: 24px; margin-bottom: 12px; }
  .adv-text p { font-size: 17px; line-height: 2; }

  /* 配套诊疗 */
  .diagnosis .sec-title { font-size: 26px; letter-spacing: 3px; }
  .diagnosis .desc { font-size: 23px; line-height: 2.4; margin-top: 40px; letter-spacing: 3px; }

  /* 页脚 */
  .foot-col { padding: 10px 40px; }
  .foot-hotline-label { font-size: 32px; margin-bottom: 18px; letter-spacing: 2px; }
  .foot-phone { font-size: 38px; padding: 12px 30px; letter-spacing: 3px; border-radius: 9px; }
  .foot-label { font-size: 17px; margin-bottom: 14px; }
  .foot-text { font-size: 17px; line-height: 2.1; }
  .foot-appoint-label { font-size: 17px; margin-bottom: 18px; }
  .btn-appoint { font-size: 19px; padding: 14px 36px; border-radius: 4px; }
  .copyright { font-size: 15px; padding: 18px; letter-spacing: normal; }
  .copyright span { margin: 0 32px; }
}

/* 4K 大屏 */
@media (min-width: 3840px) {
  /* 顶部 */
  .header .container { height: 160px; }
  .logo img { height: 100px; }
  .nav { margin-left: 130px; height: 160px; }
  .nav a { font-size: 28px; padding: 0 38px; }
  .nav a::after { height: 6px; left: 38px; right: 38px; }
  .btn-consult { padding: 22px 46px; border-radius: 6px; font-size: 24px; }

  /* Banner */
  .banner-text h1 { font-size: 72px; letter-spacing: 5px; margin-bottom: 36px; }
  .banner-tag strong { font-size: 42px; letter-spacing: 3px; }
  .banner-tag span { font-size: 20px; }
  .banner-tag { padding: 24px 46px 20px; border-radius: 4px; }
  .banner-arrow { width: 76px; height: 76px; font-size: 44px; line-height: 74px; box-shadow: 0 2px 6px rgba(0,0,0,.12); }
  .banner-arrow.prev { left: 64px; }
  .banner-arrow.next { right: 64px; }

  /* 服务承诺 */
  .promise-inner { min-height: 160px; }
  .promise-left { font-size: 38px; letter-spacing: 4px; padding: 26px clamp(36px, 4%, 80px) 26px 14px; }
  .promise-left img { height: 48px; margin-right: 28px; }
  .promise-items { font-size: 30px; letter-spacing: 5px; gap: 64px; }
  .btn-book { font-size: 28px; padding: 18px 50px; gap: 12px; border-radius: 4px; }

  /* 通用小节标题 */
  .sec-title { font-size: 38px; letter-spacing: 2px; }
  .sec-title .sec-icon { width: 38px; height: 38px; margin-right: 16px; }

  /* 简介区 */
  .intro-card { padding: 84px 100px; gap: 96px; border-radius: 22px; }
  .intro-text h2 { font-size: 56px; letter-spacing: 4px; margin-bottom: 36px; line-height: 1.5; }
  .intro-text h2 > span { font-size: 68px; }
  .intro-text p { font-size: 21px; line-height: 2.3; }
  .intro-text p + p { margin-top: 20px; }
  .intro-photo img { height: 560px; border-radius: 18px; }

  /* 技术卡 */
  .tech-cards { margin-top: 72px; gap: 44px; }
  .tech-card { padding: 48px 26px 40px; border-bottom-width: 5px; border-radius: 20px; }
  .tech-card h3 { font-size: 30px; margin-bottom: 18px; }
  .tech-card p { font-size: 21px; line-height: 2.1; }

  /* 专家卡 */
  .doctor-cards { margin-top: 64px; gap: 44px; }
  .doctor-card { border-radius: 8px; border-width: 2px; }
  .doctor-card .info { min-height: 80px; padding: 18px 26px; }
  .doctor-card .info .name { font-size: 34px; }
  .doctor-card .info .title { font-size: 24px; }
  .doctor-card .overlay { padding: 60px 76px; }
  .doctor-card .overlay h4 { font-size: 34px; }
  .doctor-card .overlay .sub { font-size: 28px; margin-bottom: 28px; }
  .doctor-card .overlay ul li { font-size: 24px; line-height: 2.4; }

  /* 四大优势 */
  .adv-list { margin-top: 80px; gap: 56px; }
  .adv-item { padding: 36px 8px; border-radius: 14px; }
  .adv-icon { width: 130px; height: 130px; border-width: 2px; }
  .adv-text h4 { font-size: 32px; margin-bottom: 16px; }
  .adv-text p { font-size: 21px; line-height: 2.1; }

  /* 配套诊疗 */
  .diagnosis .sec-title { font-size: 34px; letter-spacing: 4px; }
  .diagnosis .desc { font-size: 28px; line-height: 2.5; margin-top: 48px; letter-spacing: 4px; }

  /* 页脚 */
  .footer .container { grid-template-columns: 1.15fr 1fr 1.35fr 1fr; }
  .foot-col { padding: 14px 52px; }
  .foot-hotline-label { font-size: 40px; margin-bottom: 24px; letter-spacing: 3px; }
  .foot-phone { font-size: 48px; padding: 16px 38px; letter-spacing: 4px; border-radius: 10px; }
  .foot-label { font-size: 22px; margin-bottom: 18px; }
  .foot-text { font-size: 22px; line-height: 2.2; }
  .foot-appoint-label { font-size: 22px; margin-bottom: 24px; }
  .btn-appoint { font-size: 24px; padding: 18px 44px; border-radius: 5px; }
  .copyright { font-size: 18px; padding: 24px; letter-spacing: normal; }
  .copyright span { margin: 0 38px; }
}

/* ==================================================
   响应式适配
   ================================================== */

/* ---------- 桌面宽度渐进式缩放（防头部横向溢出） ----------
   设计稿基准参数（logo 64px / 间距 90px / nav padding 28px）
   经核算内容总宽约 1609px，超出 1300px 容器（可用 1252px），
   故在桌面各宽度下按比例渐进压缩，大屏（2K/4K）仍保持大尺寸比例。 */

/* 1920~2559（容器 1580px，可用 1532px；内容压至约 1464px） */
@media (min-width: 1920px) and (max-width: 2559px) {
  .logo img { height: 58px; }
  .nav { margin-left: 45px; }
  .nav a { padding: 0 22px; }
  .nav a::after { left: 22px; right: 22px; }
  .btn-consult { padding: 12px 24px; }
}

/* 1600~1919（容器 1300px，可用 1252px；内容压至约 1193px） */
@media (min-width: 1600px) and (max-width: 1919px) {
  .logo img { height: 46px; }
  .nav { margin-left: 44px; }
  .nav a { padding: 0 14px; font-size: 16px; }
  .nav a::after { left: 14px; right: 14px; }
  .btn-consult { font-size: 15px; padding: 12px 22px; }
}

/* 1281~1599（1440×900 / 1366×768 等常见笔记本；内容压至约 1069px） */
@media (min-width: 1281px) and (max-width: 1599px) {
  .logo img { height: 42px; }
  .nav { margin-left: 34px; }
  .nav a { padding: 0 13px; font-size: 14px; }
  .nav a::after { left: 13px; right: 13px; }
  .btn-consult { font-size: 14px; padding: 10px 20px; }
}

/* 1101~1280（再窄则进入 1100 断点 → 992 以下汉堡菜单；内容压至约 998px） */
@media (max-width: 1280px) {
  .logo img { height: 40px; }
  .nav { margin-left: 28px; }
  .nav a { padding: 0 10px; font-size: 14px; }
  .nav a::after { left: 10px; right: 10px; }
  .btn-consult { font-size: 13px; padding: 9px 18px; }
}

/* 平板横屏 / 小桌面 */
@media (max-width: 1100px) {
  .nav a { padding: 0 9px; font-size: 13px; }
  .nav a::after { left: 9px; right: 9px; }
  .nav { margin-left: 20px; }
  .intro-card { gap: 32px; padding: 36px; }
  .intro-photo img { height: 280px; }
}

/* 平板竖屏 */
@media (max-width: 992px) {
  .nav, .header .btn-consult { display: none; }
  .menu-toggle { display: flex; }
  .mobile-nav { display: block; }
  .mobile-nav .btn-consult-m {
    display: block;
    margin: 14px 28px 18px;
    background: var(--green);
    color: #fff;
    text-align: center;
    padding: 11px 0;
    border-radius: 3px;
    font-size: 14px;
  }
  .mobile-nav .btn-consult-m:hover { background: var(--green-dark); color: #fff; padding-left: 28px; }

  .promise-items { letter-spacing: 1px; gap: 16px; padding-left: 28px; }
  .tech-cards, .doctor-cards { grid-template-columns: repeat(2, 1fr); }
  .adv-list { grid-template-columns: repeat(2, 1fr); gap: 12px 24px; margin-top: 36px; }
  .footer .container { grid-template-columns: 1fr 1fr; row-gap: 8px; }
  .foot-col { padding: 18px 28px; }
  .foot-col:nth-child(odd) { border-left: none; padding-left: 0; }
  .foot-col:nth-child(n+3) { border-top: 1px solid #454a52; }
}

/* 大屏手机 */
@media (max-width: 768px) {
  .intro { padding: 40px 0 48px; }
  .intro-card {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 28px 24px;
  }
  .intro-text h2 { font-size: 24px; letter-spacing: 0.5px; margin-bottom: 18px; }
  .intro-photo img { height: auto; aspect-ratio: 4/3; }
  .tech-cards { margin-top: 28px; }

  .doctors { padding: 40px 0 8px; }
  .doctor-cards { margin-top: 28px; }

  .advantages { padding: 40px 0 52px; }

  .diagnosis { padding: 48px 0 56px; }
  .diagnosis .sec-title { font-size: 17px; }
  .diagnosis .desc { font-size: 15px; line-height: 2.1; }
  .diagnosis .desc br { display: none; }

  .promise-inner { flex-direction: column; }
  .promise-bar .promise-inner { padding: 0; }
  .promise-left {
    width: 100%;
    padding: 13px 16px;
    justify-content: center;
  }
  .promise-left::before { content: none; }
  .promise-items {
    width: 100%;
    justify-content: center;
    padding: 12px 16px 2px;
    letter-spacing: 1px;
  }
  .btn-book { margin: 10px auto 14px; }
  .notice-band .btn-book { margin-left: auto; }
  .notice-band .btn-line { margin-left: 0; }

  .banner-arrow { width: 38px; height: 38px; font-size: 21px; line-height: 37px; }
  .banner-arrow.prev { left: 14px; }
  .banner-arrow.next { right: 14px; }
}

/* 手机 */
@media (max-width: 576px) {
  .container { padding: 0 16px; }
  .logo img { height: 28px; }

  .banner { height: 300px; }
  .banner-doctor { opacity: .35; }
  .banner-text { transform: translateY(-50%); }
  .banner-tag { padding: 10px 16px 8px; }
  .banner-tag span { display: none; }

  .promise-items { gap: 14px; font-size: 13px; }
  .btn-book { padding: 9px 22px; font-size: 13px; }

  .tech-cards, .doctor-cards, .adv-list { grid-template-columns: 1fr; }
  .tech-card { padding: 22px 18px 20px; }

  .adv-item { padding: 12px 10px;}
  .adv-icon{ margin-right: 18px;}
  .adv-text p { font-size: 11.5px; }

  .footer { padding: 28px 0; }
  .footer .container { grid-template-columns: 1fr; }
  .foot-col {
    padding: 16px 0 !important;
    border-left: none !important;
  }
  .foot-col + .foot-col { border-top: 1px solid #454a52; }
  .copyright span { display: block; margin: 0; }
}

    .tech-card.img-popup img{
        width: 100%;
        height: 300px;
        object-fit: cover;
        object-position: top;
    }
@media screen and (min-width:1024px){
	.doctor-cards.lg-5-grid{
		grid-template-columns: repeat(5, 1fr);
	}
}