:root {
  --page-max-width: 414px;
  --index-unit: calc(min(100vw, var(--page-max-width)) / 414);
  --design-unit: calc(min(100vw, var(--page-max-width)) / 750);
  --legacy-design-unit: 0.133333vw;
  --font-size-display: calc(34 * var(--design-unit));
  --font-size-title: calc(28 * var(--design-unit));
  --font-size-subtitle: calc(26 * var(--design-unit));
  --font-size-base: calc(24 * var(--design-unit));
  --font-size-meta: calc(20 * var(--design-unit));
  --font-size-note: calc(16 * var(--design-unit));
  --blue: #0054b8;
  --cyan: #02c7c2;
  --text: #1e2a36;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  font-size: var(--font-size-base);
  line-height: 1.5;
  font-family: Arial, "Microsoft YaHei", sans-serif;
  background: #eef4f8;
}

button,
input,
select {
  font: inherit;
}

button {
  border: 0;
  background: none;
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

/* 全站懒加载：转圈等待（对齐 PC 端 js-lazy-img-wrap / is-loading） */
.js-lazy-bg,
.js-lazy-img-wrap {
  position: relative;
  background-color: #e8eef4;
}

.js-lazy-bg.is-pending:not(.is-loaded),
.js-lazy-img-wrap.is-pending:not(.is-loaded) {
  background-image: linear-gradient(120deg, #e8eef4 0%, #f3f7fb 48%, #e8eef4 100%);
  background-size: 200% 100%;
  animation: lazy-shimmer 1.2s linear infinite;
}

.js-lazy-bg.is-loading::after,
.js-lazy-img-wrap.is-loading::after {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 6;
  width: calc(36 * var(--design-unit));
  height: calc(36 * var(--design-unit));
  margin: calc(-18 * var(--design-unit)) 0 0 calc(-18 * var(--design-unit));
  box-sizing: border-box;
  content: "";
  border: 3px solid rgba(0, 73, 154, .18);
  border-top-color: #00499a;
  border-radius: 50%;
  animation: lazy-spin .7s linear infinite;
  pointer-events: none;
}

.js-lazy-bg.is-loaded,
.js-lazy-img-wrap.is-loaded {
  animation: none;
}

.js-lazy-bg.is-loaded::after,
.js-lazy-img-wrap.is-loaded::after {
  display: none;
}

.js-lazy-img-wrap img.js-lazy-img {
  opacity: 0;
  transition: opacity .25s ease;
}

.js-lazy-img-wrap.is-loaded img.js-lazy-img {
  opacity: 1;
}

@keyframes lazy-spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes lazy-shimmer {
  0% {
    background-position: 100% 0;
  }
  100% {
    background-position: -100% 0;
  }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.page {
  /* 在手机壳内重算，避免 html 上被 JS 写成固定 px（如 1.15px）后撑破布局 */
  --index-unit: calc(min(100vw, var(--page-max-width)) / 414);
  --design-unit: calc(min(100vw, var(--page-max-width)) / 750);
  width: 100vw;
  width: calc(414 * var(--index-unit));
  max-width: var(--page-max-width);
  min-height: 100vh;
  margin: 0 auto;
  overflow: hidden;
  background: #fff;
}

/* 公共页头图：概况 / 科室导航等共用 */
.page-hero {
  position: relative;
  height: calc(430 * var(--design-unit));
  overflow: hidden;
}

.page-hero.site-header {
  --site-header-bar-top: 0;
  --site-header-bar-height: calc(76 * var(--design-unit));
  --site-header-bar-gap: calc(10 * var(--design-unit));
  --site-header-bar-padding: env(safe-area-inset-top) calc(22 * var(--design-unit)) 0;
  --site-header-bar-bg: rgba(255, 255, 255, .12);
  --site-header-bar-shadow: inset 0 -1px 0 rgba(255, 255, 255, .12);
  --site-header-blur: blur(10px);
  --site-header-nav-top: calc(82 * var(--design-unit));
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: calc(96 * var(--design-unit));
  background: linear-gradient(180deg, rgba(255, 255, 255, .30) 0%, rgba(255, 255, 255, .18) 44%, rgba(255, 255, 255, 0) 100%);
  pointer-events: none;
  z-index: 1;
}

.page-hero__media {
  position: relative;
  width: 100%;
  height: 100%;
}

.page-hero__media > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero__panel {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  width: calc(335 * var(--design-unit));
  max-width: 100%;
  padding: calc(18 * var(--design-unit)) calc(28 * var(--design-unit)) calc(18 * var(--design-unit)) calc(34 * var(--design-unit));
  color: #fff;
  background: linear-gradient(90deg, rgba(13, 55, 120, .88) 0%, rgba(13, 55, 120, .72) 42%, rgba(13, 55, 120, .36) 78%, rgba(13, 55, 120, 0) 100%);
}

.page-hero__panel h2,
.page-hero__panel strong {
  display: block;
  margin: 0;
  font-size: calc(30 * var(--design-unit));
  font-weight: 700;
  line-height: 1.1;
}

.page-hero__panel p,
.page-hero__panel span {
  display: block;
  margin: calc(4 * var(--design-unit)) 0 0;
  font-size: var(--font-size-meta);
  letter-spacing: .02em;
}

/* 兼容旧类名（如 ksdh-sj 尚未改完） */
.department-banner {
  position: relative;
  width: 100%;
  height: calc(430 * var(--design-unit));
  overflow: hidden;
}

.department-banner > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.department-banner__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  width: calc(335 * var(--design-unit));
  max-width: 100%;
  padding: calc(18 * var(--design-unit)) calc(28 * var(--design-unit)) calc(18 * var(--design-unit)) calc(34 * var(--design-unit));
  color: #fff;
  background: linear-gradient(90deg, rgba(13, 55, 120, .88) 0%, rgba(13, 55, 120, .72) 42%, rgba(13, 55, 120, .36) 78%, rgba(13, 55, 120, 0) 100%);
}

.department-banner__caption strong {
  display: block;
  margin: 0;
  font-size: calc(30 * var(--design-unit));
  font-weight: 700;
  line-height: 1.1;
}

.department-banner__caption span {
  display: block;
  margin: calc(4 * var(--design-unit)) 0 0;
  font-size: var(--font-size-meta);
  letter-spacing: .02em;
}

.site-header {
  --site-header-bar-top: 0;
  --site-header-bar-height: calc(120 * var(--design-unit));
  --site-header-bar-gap: calc(14 * var(--design-unit));
  --site-header-bar-padding: env(safe-area-inset-top) calc(24 * var(--design-unit)) 0;
  --site-header-bar-radius: 0;
  --site-header-bar-bg: rgba(255, 255, 255, .12);
  --site-header-bar-shadow: inset 0 -1px 0 rgba(255, 255, 255, .12);
  --site-header-blur: blur(10px);
  --site-header-nav-top: calc(128 * var(--design-unit));
  --site-header-logo-width: calc(280 * var(--design-unit));
  --site-header-logo-mark-width: calc(280 * var(--design-unit));
  --site-header-search-width: calc(240 * var(--design-unit));
  --site-header-search-height: calc(48 * var(--design-unit));
  --site-header-menu-size: calc(48 * var(--design-unit));
  --site-header-menu-icon: calc(32 * var(--design-unit));
}

.site-header__bar {
  position: absolute;
  z-index: 20;
  left: 0;
  right: 0;
  top: var(--site-header-bar-top);
  height: var(--site-header-bar-height);
  display: flex;
  align-items: center;
  gap: var(--site-header-bar-gap);
  padding: var(--site-header-bar-padding);
  border-radius: var(--site-header-bar-radius);
  background: var(--site-header-bar-bg);
  backdrop-filter: var(--site-header-blur);
  -webkit-backdrop-filter: var(--site-header-blur);
  box-shadow: var(--site-header-bar-shadow);
}

.site-header__logo {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  width: auto;
  max-width: none;
  padding-left: 0;
}

.site-header__logo-mark {
  width: var(--site-header-logo-mark-width);
  max-width: none;
  height: calc(72 * var(--design-unit));
  flex: 0 0 auto;
  object-fit: contain;
  object-position: left center;
}

.site-header__search {
  margin-left: auto;
  width: var(--site-header-search-width);
  height: var(--site-header-search-height);
  display: flex;
  align-items: center;
  padding: 0 calc(10 * var(--design-unit)) 0 calc(22 * var(--design-unit));
  border-radius: calc(999 * var(--design-unit));
  background: #fff;
  box-shadow: inset 0 0 0 1px rgba(11, 112, 191, .08);
  overflow: hidden;
}

.site-header__search input {
  flex: 1 1 auto;
  min-width: 0;
  width: auto;
  height: 100%;
  padding: 0;
  border: 0;
  outline: 0;
  background: transparent;
  font-size: calc(24 * var(--design-unit));
  line-height: 1;
  -webkit-appearance: none;
  appearance: none;
}

.site-header__search input[type="search"]::-webkit-search-decoration,
.site-header__search input[type="search"]::-webkit-search-cancel-button {
  -webkit-appearance: none;
}

.site-header__search button {
  width: calc(36 * var(--design-unit));
  height: calc(36 * var(--design-unit));
  flex: 0 0 auto;
  flex-shrink: 0;
  position: relative;
  align-self: center;
}

.site-header__search button::before {
  content: "";
  position: absolute;
  left: 46%;
  top: 46%;
  width: calc(15 * var(--design-unit));
  height: calc(15 * var(--design-unit));
  border: 2px solid #8a98a6;
  border-radius: 50%;
  box-sizing: content-box;
  transform: translate(-50%, -50%);
}

.site-header__search button::after {
  content: "";
  position: absolute;
  left: 62%;
  top: 62%;
  width: calc(9 * var(--design-unit));
  height: 2px;
  background: #8a98a6;
  border-radius: 1px;
  transform: rotate(45deg);
  transform-origin: left center;
}

.site-header__menu {
  width: var(--site-header-menu-size);
  height: var(--site-header-menu-size);
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.site-header__menu img {
  width: var(--site-header-menu-icon);
  height: var(--site-header-menu-icon);
  object-fit: contain;
}

.site-header__mask {
  position: fixed;
  z-index: 1000;
  top: 0;
  right: 0;
  bottom: 0;
  /* 只盖住抽屉右侧，避免挡住菜单点击 */
  left: min(82vw, calc(520 * var(--design-unit)));
  border: 0;
  background: rgba(0, 20, 50, .42);
  cursor: pointer;
}

.site-header__mask[hidden] {
  display: none !important;
}

.site-header__nav {
  position: fixed;
  z-index: 1001;
  left: 0;
  top: 0;
  bottom: 0;
  width: calc(520 * var(--design-unit));
  max-width: 82vw;
  margin: 0;
  padding: calc(28 * var(--design-unit)) 0 calc(40 * var(--design-unit));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: 0;
  background: #f3f3f3;
  box-shadow: calc(8 * var(--design-unit)) 0 calc(28 * var(--design-unit)) rgba(0, 30, 70, .18);
  transform: translateX(-105%);
  visibility: hidden;
  pointer-events: none;
  transition: transform .28s ease, visibility .28s ease;
}

.site-header.is-open .site-header__nav,
body.is-nav-open .site-header__nav {
  transform: translateX(0);
  visibility: visible;
  pointer-events: auto;
}

.site-header__nav[hidden] {
  display: block !important;
}

.site-header__nav-list {
  display: block;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-header__nav-item {
  border-bottom: 1px dashed #cfcfcf;
}

.site-header__nav-link,
.site-header__nav-toggle {
  position: relative;
  width: 100%;
  min-height: calc(88 * var(--design-unit));
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: calc(22 * var(--design-unit)) calc(72 * var(--design-unit)) calc(22 * var(--design-unit)) calc(36 * var(--design-unit));
  border: 0;
  border-radius: 0;
  color: #333;
  font-size: calc(30 * var(--design-unit));
  line-height: 1.35;
  text-align: left;
  background: transparent;
}

.site-header__nav-toggle span {
  display: block;
}

.site-header__nav-link::after,
.site-header__nav-toggle::after {
  content: "";
  position: absolute;
  right: calc(34 * var(--design-unit));
  top: 50%;
  width: calc(14 * var(--design-unit));
  height: calc(14 * var(--design-unit));
  border-right: 2px solid #999;
  border-bottom: 2px solid #999;
  transform: translateY(-60%) rotate(-45deg);
}

.site-header__nav-item.is-expanded .site-header__nav-toggle::after {
  transform: translateY(-30%) rotate(45deg);
}

.site-header__subnav {
  margin: 0;
  padding: 0 calc(36 * var(--design-unit)) calc(18 * var(--design-unit)) calc(56 * var(--design-unit));
  list-style: none;
}

.site-header__subnav[hidden] {
  display: none;
}

.site-header__subnav a {
  min-height: calc(64 * var(--design-unit));
  display: flex;
  align-items: center;
  padding: calc(10 * var(--design-unit)) 0;
  border-radius: 0;
  color: #0054b8;
  font-size: calc(26 * var(--design-unit));
  line-height: 1.4;
  background: transparent;
}

body.is-nav-open {
  overflow: hidden;
}

.site-header__nav a:focus-visible,
.site-header__nav-toggle:focus-visible,
.site-header__menu:focus-visible,
.site-header__search button:focus-visible,
.site-header__search input:focus-visible,
.footer a:focus-visible {
  outline: 2px solid #ffb347;
  outline-offset: 2px;
}

/* 蓝底页脚：同时兼容 .footer / .site-footer，避免只写其一导致「浅色+蓝底」双份观感 */
.footer,
.site-footer {
  position: relative;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
  color: #fff;
  text-align: center;
  background:
    linear-gradient(180deg, rgba(0, 64, 150, .72), rgba(0, 64, 150, .88)),
    #0a4aa4 url("../images/index/footer-bg.jpg") center / cover no-repeat;
}

.page > .footer,
.page > .site-footer {
  width: 100%;
  max-width: 100%;
  margin: 0;
}

.footer__content {
  position: relative;
  z-index: 1;
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  padding: calc(48 * var(--design-unit)) calc(36 * var(--design-unit)) calc(36 * var(--design-unit));
}

.footer__logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
}

.footer__logo img {
  width: calc(320 * var(--design-unit));
  max-width: 78%;
  height: auto;
  margin: 0 auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

.footer__info {
  margin: calc(28 * var(--design-unit)) 0 0;
  padding: 0;
  list-style: none;
}

.footer__info li {
  margin-top: calc(12 * var(--design-unit));
  font-size: var(--font-size-meta);
  line-height: 1.45;
  word-break: break-all;
}

.footer__info li:first-child {
  margin-top: 0;
}

.footer__info span {
  opacity: .92;
}

.footer__info a,
.footer__info em {
  color: inherit;
  font-style: normal;
  text-decoration: none;
}

.footer__codes {
  display: flex;
  justify-content: center;
  gap: calc(28 * var(--design-unit));
  margin-top: calc(36 * var(--design-unit));
}

.footer__code {
  margin: 0;
  flex: 0 0 auto;
}

.footer__code span,
.footer__code img {
  width: calc(120 * var(--design-unit));
  height: calc(120 * var(--design-unit));
  display: block;
  margin: 0 auto;
  border: calc(4 * var(--design-unit)) solid #fff;
  object-fit: cover;
  background:
    linear-gradient(90deg, #111 50%, transparent 0) 0 0 / calc(18 * var(--design-unit)) calc(18 * var(--design-unit)),
    linear-gradient(#111 50%, transparent 0) 0 0 / calc(18 * var(--design-unit)) calc(18 * var(--design-unit)),
    #fff;
}

.footer__code figcaption {
  margin-top: calc(10 * var(--design-unit));
  font-size: var(--font-size-note);
  line-height: 1.3;
}

.footer__legal {
  margin-top: calc(36 * var(--design-unit));
  padding-top: calc(24 * var(--design-unit));
  border-top: 1px solid rgba(255, 255, 255, .22);
}

.footer__copyright,
.footer__meta {
  margin: 0;
  font-size: var(--font-size-note);
  line-height: 1.55;
  opacity: .92;
}

.footer__meta {
  margin-top: calc(10 * var(--design-unit));
}

.footer__meta span {
  display: inline-block;
  margin: 0 calc(8 * var(--design-unit));
}

.footer__meta a {
  color: inherit;
  text-decoration: none;
}

@media (max-width: 375px) {
  .site-header {
    --site-header-logo-mark-width: calc(240 * var(--design-unit));
    --site-header-search-width: calc(220 * var(--design-unit));
  }

  .site-header__bar {
    padding-left: calc(18 * var(--design-unit));
    padding-right: calc(18 * var(--design-unit));
  }

  .site-header__logo-mark {
    height: calc(64 * var(--design-unit));
  }

  .footer__codes {
    gap: calc(24 * var(--design-unit));
  }
}

@media (max-width: 340px) {
  .site-header {
    --site-header-logo-mark-width: calc(200 * var(--design-unit));
    --site-header-search-width: calc(190 * var(--design-unit));
    --site-header-search-height: calc(44 * var(--design-unit));
    --site-header-menu-size: calc(44 * var(--design-unit));
    --site-header-menu-icon: calc(28 * var(--design-unit));
  }

  .site-header__logo-mark {
    height: calc(56 * var(--design-unit));
  }

  .site-header__search {
    padding-left: calc(16 * var(--design-unit));
  }
}