/* 全局色彩：沿用官网参考图的米白、棕金与深灰。 */
:root {
  --background: #f5f1ec;
  --surface: #fffbf5;
  --surface-warm: #faf0e3;
  --text: #333333;
  --muted: #666666;
  --subtle: #75695e;
  --border: #d8c4ac;
  --brand: #7d552e;
  --accent: #b5844f;
  --charcoal: #313131;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}
body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font:
    15px/1.8 'Microsoft YaHei',
    'PingFang SC',
    sans-serif;
}
body:has(dialog[open]) {
  overflow: hidden;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input {
  font: inherit;
}
button {
  color: inherit;
  cursor: pointer;
}
button,
a,
input {
  -webkit-tap-highlight-color: transparent;
}
button {
  border: 0;
}
button:disabled {
  cursor: default;
}
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 5px;
}
button:focus-visible {
  outline-offset: 3px;
}
button,
a {
  touch-action: manipulation;
}
h1,
h2,
h3,
p {
  margin: 0;
}
h1,
h2,
h3 {
  text-wrap: balance;
}
ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}
.wrap {
  width: min(1200px, calc(100% - 80px));
  margin-inline: auto;
}
.icon {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
  vertical-align: middle;
}
.serif {
  font-family: 'STSong', 'SimSun', 'Songti SC', serif;
}
.skip {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 80;
  background: white;
  padding: 12px 20px;
  transform: translateY(-150%);
}
.skip:focus {
  transform: none;
}
/* 学校品牌与页头 */
#home {
  background: var(--surface);
}
.masthead .brand-crop {
  mix-blend-mode: multiply;
}
.masthead {
  height: 104px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.identity {
  display: flex;
  align-items: center;
  gap: 28px;
  min-width: 0;
}
.brand-crop {
  display: block;
  width: 262px;
  height: 69px;
  background-size: 1122px 1402px;
  background-position: -45px -20px;
  background-repeat: no-repeat;
  flex-shrink: 0;
}
.site-name {
  border-left: 1px solid var(--border);
  padding-left: 28px;
}
.site-name strong {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--brand);
}
.site-name span {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-top: 3px;
  letter-spacing: 1px;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
}
.official {
  font-size: 13px;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
}
.official .icon {
  width: 15px;
  height: 15px;
}
.search-trigger {
  background: none;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  font-size: 13px;
}
.search-trigger .icon {
  width: 20px;
  height: 20px;
}
/* 桌面展示全部栏目，手机首页由脚本启用折叠导航。 */
.nav-shell {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--charcoal);
  color: white;
}
.nav-layout {
  min-height: 56px;
}
.nav-toggle {
  display: none;
}
.nav-list {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
}
.nav-list > li {
  min-width: 0;
}
.nav-link {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 56px;
  background: none;
  padding: 0 6px;
  font-size: 14px;
  letter-spacing: 1px;
  text-align: center;
  white-space: nowrap;
  position: relative;
}
.nav-link:after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 6px;
  right: 6px;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform 0.15s ease-out;
}
.nav-link:hover:after,
.nav-link[aria-current='page']:after {
  transform: scaleX(1);
}
[hidden] {
  display: none !important;
}
/* 首页视频：完整封面、居中播放按钮与原生控制条。 */
.home-video {
  position: relative;
  aspect-ratio: 960 / 544;
  background: #000;
  color: white;
}
.home-video-player {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.home-video-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: grid;
  place-items: center;
  width: clamp(60px, 7vw, 92px);
  aspect-ratio: 1;
  padding: 0;
  border: 2px solid white;
  border-radius: 50%;
  background: #00000059;
  color: white;
}
.home-video-play .icon {
  width: 36px;
  height: 36px;
  margin-left: 4px;
  fill: currentColor;
  stroke: none;
}
.home-video-play:hover {
  background: #00000099;
}
.home-video-play:focus-visible {
  outline-color: white;
  outline-offset: 6px;
}
.home-video-error {
  position: absolute;
  top: 16px;
  right: 16px;
  left: 16px;
  padding: 12px 16px;
  background: #000000cc;
  font-size: 14px;
}
.home-video-error a {
  text-decoration: underline;
}

/* 成果数据 */
.stats-section {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding-block: 36px;
}
.stat {
  padding: 0 32px;
  border-left: 1px solid var(--border);
}
.stat:first-child {
  padding-left: 0;
  border: 0;
}
.stat:last-child {
  padding-right: 0;
}
.stat-value {
  display: flex;
  align-items: baseline;
  gap: 7px;
  color: var(--brand);
  line-height: 1.1;
  white-space: nowrap;
}
.stat-value strong {
  font:
    46px/1.1 Georgia,
    serif;
}
.stat-value span {
  font-size: 15px;
}
.stat-value .honor {
  font:
    600 27px/1.85 'STSong',
    'SimSun',
    serif;
  letter-spacing: 1px;
}
.stat p {
  color: var(--muted);
  font-size: 13px;
  margin-top: 12px;
}
/* 项目简介与创新亮点 */
.overview {
  display: grid;
  grid-template-columns: 1fr 1.14fr;
  gap: 100px;
  padding-block: 80px 88px;
}
.section-label {
  color: var(--brand);
  font-size: 13px;
  letter-spacing: 2px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-label:before {
  content: '';
  width: 20px;
  height: 2px;
  background: var(--accent);
}
.intro h2 {
  color: var(--brand);
  font-size: 34px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 1px;
  margin-bottom: 24px;
}
.intro > p {
  color: var(--muted);
  line-height: 2.05;
  font-size: 15px;
}
.text-action {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  min-height: 44px;
  background: none;
  color: var(--brand);
  padding: 0;
  border-bottom: 1px solid var(--border);
  margin-top: 24px;
}
.text-action:hover {
  border-color: var(--brand);
}
.text-action .icon {
  width: 18px;
  height: 18px;
}
.innovations {
  scroll-margin-top: 88px;
}
.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 20px;
}
.section-heading h2 {
  color: var(--brand);
  font:
    600 28px/1.5 'STSong',
    'SimSun',
    serif;
  letter-spacing: 1px;
}
.section-heading > span {
  font-size: 12px;
  color: var(--subtle);
}
.innovation {
  display: grid;
  grid-template-columns: 48px 1fr 20px;
  align-items: center;
  gap: 20px;
  width: 100%;
  padding: 24px 0;
  background: none;
  text-align: left;
  border-top: 1px solid var(--border);
}
.innovation-symbol {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  color: var(--surface);
  background: var(--accent);
  border-radius: 4px;
}
.innovation-symbol .icon {
  width: 28px;
  height: 28px;
}
.innovation h3 {
  color: var(--brand);
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 5px;
}
.innovation p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.8;
}
.innovation > .icon {
  width: 18px;
  height: 18px;
  color: var(--subtle);
  transition: transform 0.15s;
}
.innovation:hover h3 {
  color: var(--brand);
}
.innovation:hover > .icon {
  transform: translateX(4px);
}
/* 核心培养路径 */
.path-section {
  background: var(--brand);
  color: white;
  padding-block: 64px;
}
.path-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
  margin-bottom: 44px;
}
.path-heading .section-label {
  color: #fff;
}
.path-heading h2 {
  font:
    500 34px/1.5 'STSong',
    'SimSun',
    serif;
  letter-spacing: 1px;
}
.path-heading > p {
  font-size: 13px;
  letter-spacing: 2px;
  color: #fff;
  opacity: 0.83;
  padding-bottom: 8px;
}
.path-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
}
.path-steps li {
  position: relative;
}
.path-steps li:not(:last-child):after {
  content: '';
  position: absolute;
  top: 22px;
  left: 56px;
  right: -8px;
  height: 1px;
  background: #ffffff45;
}
.path-step {
  position: relative;
  text-align: left;
  background: none;
  color: white;
  width: 100%;
  padding: 0 8px 12px 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.step-number {
  font:
    italic 18px/44px Georgia,
    serif;
  width: 44px;
  height: 44px;
  text-align: center;
  border: 1px solid #ffffff80;
  border-radius: 50%;
  margin-bottom: 24px;
}
.path-step:hover .step-number {
  background: white;
  color: var(--brand);
}
.path-step h3 {
  font-size: 16px;
  letter-spacing: 0.5px;
  font-weight: 500;
  margin-bottom: 12px;
}
.path-step p {
  font-size: 13px;
  line-height: 1.95;
  color: #fff;
  opacity: 0.83;
}
.step-detail {
  font-size: 12px;
  margin-top: 16px;
  display: flex;
  gap: 6px;
  align-items: center;
  color: #fff;
  opacity: 0.8;
}
.step-detail .icon {
  width: 14px;
  height: 14px;
}
.feedback-loop {
  display: flex;
  align-items: center;
  gap: 20px;
  color: #fff;
  opacity: 0.78;
  margin-top: 32px;
  font-size: 12px;
  letter-spacing: 2px;
}
.feedback-loop:before,
.feedback-loop:after {
  content: '';
  height: 1px;
  background: #ffffff45;
  flex: 1;
}
.feedback-loop .icon {
  width: 18px;
  height: 18px;
}
/* 发展历程与里程碑 */
.milestone-section {
  padding-block: 72px 80px;
  background: var(--surface-warm);
}
.milestone-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 44px;
}
.milestone-heading h2 {
  color: var(--brand);
  font:
    600 34px/1.5 'STSong',
    'SimSun',
    serif;
  letter-spacing: 1px;
}
.milestone-heading .text-action {
  margin: 0;
}
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.timeline li {
  position: relative;
  padding: 0 28px 0 0;
}
.timeline li:last-child {
  padding-right: 0;
}
.timeline time {
  font:
    26px/1.2 Georgia,
    serif;
  color: var(--brand);
}
.timeline-rule {
  height: 36px;
  position: relative;
  margin-top: 8px;
}
.timeline-rule:after {
  content: '';
  height: 1px;
  background: var(--border);
  position: absolute;
  left: 0;
  right: -28px;
  top: 16px;
}
.timeline li:last-child .timeline-rule:after {
  right: 0;
}
.timeline-rule:before {
  content: '';
  position: absolute;
  top: 12px;
  left: 0;
  background: var(--brand);
  width: 9px;
  height: 9px;
  border-radius: 50%;
  z-index: 1;
}
.timeline li:last-child .timeline-rule:before {
  background: var(--accent);
}
.timeline h3 {
  font-size: 17px;
  margin-bottom: 8px;
  font-weight: 600;
}
.timeline p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.9;
  max-width: 235px;
}
/* 页脚与联系方式 */
.footer {
  background: var(--charcoal);
  color: white;
}
.footer-main {
  display: grid;
  grid-template-columns: 1.3fr 1fr 0.8fr;
  gap: 64px;
  padding-block: 44px 40px;
}
.footer-brand .brand-crop {
  filter: grayscale(1) invert(1) brightness(2);
  mix-blend-mode: screen;
  margin-left: -6px;
}
.footer-brand p {
  font-size: 12px;
  opacity: 0.75;
  letter-spacing: 1px;
  margin-top: 12px;
}
.footer h3 {
  font-size: 14px;
  letter-spacing: 1px;
  font-weight: 500;
  margin-bottom: 16px;
}
.contact-list {
  display: grid;
  gap: 8px;
  font-size: 12px;
  color: #ffffffc9;
}
.contact-list a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 24px;
}
.contact-list .icon {
  width: 16px;
  height: 16px;
}
.footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 20px;
  font-size: 12px;
  color: #ffffffc9;
}
.footer-links a,
.footer-links button {
  display: block;
  min-height: 40px;
  line-height: 40px;
  background: none;
  color: inherit;
  padding: 0;
  text-align: left;
}
.footer a:hover,
.footer button:hover {
  color: white;
  text-decoration: underline;
}
.footer-bottom {
  border-top: 1px solid #ffffff26;
  padding-block: 16px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 11px;
  color: #ffffffad;
  letter-spacing: 0.5px;
}
/* 搜索弹窗 */
dialog {
  width: min(640px, calc(100% - 32px));
  max-height: calc(100dvh - 48px);
  padding: 0;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 24px 80px #31313140;
  overflow: auto;
}
dialog::backdrop {
  background: #313131d1;
  backdrop-filter: blur(3px);
}
.dialog-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 32px;
  border-bottom: 1px solid var(--border);
}
.dialog-head h2 {
  font-size: 21px;
  line-height: 1.5;
  font-weight: 600;
}
.close-dialog {
  display: grid;
  place-items: center;
  background: var(--background);
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 4px;
}
.close-dialog .icon {
  width: 20px;
  height: 20px;
}
.dialog-body {
  padding: 28px 32px 32px;
}
.dialog-body > p {
  color: var(--muted);
  line-height: 1.95;
  margin-bottom: 16px;
}
.dialog-body ul {
  padding-left: 20px;
  list-style: disc;
  color: var(--muted);
}
.dialog-body li {
  margin-block: 10px;
}
.source-note {
  font-size: 12px;
  color: var(--subtle);
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.search-label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 8px;
}
.search-field {
  display: flex;
  border: 1px solid var(--subtle);
  border-radius: 4px;
  overflow: hidden;
}
.search-field input {
  min-width: 0;
  flex: 1;
  border: 0;
  padding: 12px 14px;
  color: var(--text);
  background: white;
}
.search-field input:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: -3px;
}
.search-submit {
  background: var(--brand);
  color: white;
  padding: 10px 20px;
  white-space: nowrap;
}
.search-message {
  font-size: 13px;
  color: var(--muted);
  margin-top: 16px;
}
.search-results {
  margin-top: 16px;
}
.search-result {
  display: block;
  width: 100%;
  background: none;
  text-align: left;
  padding: 16px 0;
  border-top: 1px solid var(--border);
}
.search-result strong {
  display: flex;
  justify-content: space-between;
  font-size: 16px;
  font-weight: 500;
}
.search-result p {
  color: var(--muted);
  font-size: 13px;
  margin-top: 6px;
}
.search-result:hover strong {
  color: var(--brand);
}
/* 响应式：宽屏、桌面、平板、手机 */

@media (max-width: 1100px) {
  .wrap {
    width: calc(100% - 64px);
  }
  .site-name {
    padding-left: 20px;
  }
  .identity {
    gap: 20px;
  }
  .header-actions {
    gap: 16px;
  }
  .official {
    display: none;
  }
  .nav-link {
    padding: 0 4px;
    font-size: 13px;
    letter-spacing: 0;
  }
  .overview {
    gap: 56px;
  }

  .stat {
    padding-inline: 24px;
  }
  .stat-value .honor {
    font-size: 24px;
  }
  .path-steps {
    gap: 16px;
  }
  .path-step h3 {
    font-size: 15px;
  }
  .path-heading > p {
    letter-spacing: 0.5px;
  }
  .footer-main {
    gap: 32px;
    grid-template-columns: 1.2fr 1fr 0.7fr;
  }
  .footer-brand .brand-crop {
    transform: scale(0.87);
    transform-origin: left center;
    width: 230px;
  }
  .footer-links {
    gap: 4px 12px;
  }
}
@media (max-width: 900px) {
  html {
    scroll-padding-top: 16px;
  }
  .home-video.wrap {
    width: 100%;
    margin-top: 16px;
    margin-bottom: 16px;
  }
  .nav-shell {
    position: static;
  }
  .nav-layout {
    min-height: 48px;
  }
  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    height: 48px;
    padding: 0 8px;
    border: 0;
    background: none;
    color: inherit;
    font-size: 14px;
    letter-spacing: 1px;
  }
  .nav-toggle::after {
    content: '';
    width: 8px;
    height: 8px;
    margin-right: 4px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
  }
  .nav-toggle[aria-expanded='true']::after {
    transform: rotate(225deg);
  }
  .nav-shell.is-collapsible .nav-list {
    display: none;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding-bottom: 12px;
  }
  .nav-shell.is-open .nav-list {
    display: grid;
  }
  .nav-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .nav-link {
    padding: 8px;
    font-size: 14px;
    line-height: 1.55;
    white-space: normal;
  }
}
@media (max-width: 800px) {
  .wrap {
    width: calc(100% - 48px);
  }
  .masthead {
    height: 88px;
  }
  .identity {
    gap: 0;
  }
  .site-name {
    display: none;
  }
  .header-actions {
    gap: 0;
  }
  .search-trigger span {
    display: none;
  }

  .stats {
    padding-block: 28px;
  }
  .stat {
    padding-inline: 16px;
  }
  .stat-value strong {
    font-size: 38px;
  }
  .stat-value .honor {
    font-size: 21px;
  }
  .stat p {
    font-size: 12px;
  }
  .overview {
    grid-template-columns: 1fr;
    gap: 48px;
    padding-block: 56px;
  }
  .intro > p {
    max-width: 650px;
  }
  .intro h2 br {
    display: none;
  }
  .intro h2 {
    font-size: 30px;
  }
  .path-section {
    padding-block: 48px;
  }
  .path-heading {
    display: block;
    margin-bottom: 32px;
  }
  .path-heading > p {
    margin-top: 12px;
  }
  .path-heading h2,
  .milestone-heading h2 {
    font-size: 30px;
  }
  .path-steps {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .path-steps li:not(:last-child):after {
    top: 48px;
    bottom: 0;
    left: 21px;
    right: auto;
    width: 1px;
    height: auto;
  }
  .path-step {
    padding: 0 0 28px 68px;
    min-height: 130px;
  }
  .step-number {
    position: absolute;
    top: 0;
    left: 0;
    margin: 0;
  }
  .path-step h3 {
    font-size: 17px;
    padding-top: 6px;
  }
  .path-step p br {
    display: none;
  }
  .path-step p {
    max-width: 540px;
  }
  .step-detail {
    margin-top: 8px;
  }
  .feedback-loop {
    margin-top: 0;
  }
  .milestone-section {
    padding-block: 48px 56px;
  }
  .timeline {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px 0;
  }
  .timeline li:nth-child(2) .timeline-rule:after {
    right: 0;
  }
  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    padding-block: 32px;
  }
  .footer-brand {
    grid-column: 1/-1;
    display: flex;
    align-items: center;
    gap: 24px;
  }
  .footer-brand p {
    margin-top: 0;
  }
  .footer-bottom {
    font-size: 10px;
  }
  .footer-links {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 600px) {
  .wrap {
    width: calc(100% - 40px);
  }
  .masthead {
    height: 84px;
    gap: 8px;
  }
  .identity {
    width: 222px;
  }
  .masthead .brand-crop {
    transform: scale(0.84);
    transform-origin: left center;
    width: 262px;
    margin-right: -42px;
  }
  .header-actions {
    margin-left: auto;
  }
  .search-trigger {
    width: 44px;
    justify-content: center;
  }
  .nav-link {
    font-size: 12px;
  }

  .stats {
    grid-template-columns: 1fr 1fr;
    padding-block: 0;
  }
  .stat {
    padding: 24px 0 24px 24px;
  }
  .stat:first-child {
    padding: 24px 20px 24px 0;
  }
  .stat:nth-child(3) {
    border-left: 0;
    padding-left: 0;
    padding-right: 20px;
    border-top: 1px solid var(--border);
  }
  .stat:nth-child(4) {
    border-top: 1px solid var(--border);
  }
  .stat-value strong {
    font-size: 40px;
  }
  .stat-value span {
    font-size: 12px;
  }
  .stat-value .honor {
    font-size: 22px;
    line-height: 2;
  }
  .stat p {
    font-size: 11px;
    margin-top: 8px;
  }
  .overview {
    padding-block: 44px 48px;
    gap: 40px;
  }
  .section-label {
    font-size: 12px;
    margin-bottom: 12px;
  }
  .intro h2 {
    font-size: 28px;
    line-height: 1.55;
    margin-bottom: 20px;
  }
  .intro h2 br {
    display: block;
  }
  .intro > p {
    font-size: 14px;
    line-height: 2;
  }
  .text-action {
    margin-top: 20px;
    font-size: 12px;
  }
  .section-heading h2 {
    font-size: 26px;
  }
  .section-heading > span {
    font-size: 11px;
  }
  .section-heading {
    gap: 12px;
    margin-bottom: 16px;
  }
  .innovation {
    grid-template-columns: 40px 1fr 16px;
    gap: 14px;
    padding: 20px 0;
  }
  .innovation-symbol {
    width: 40px;
    height: 44px;
  }
  .innovation-symbol .icon {
    width: 25px;
    height: 25px;
  }
  .innovation h3 {
    font-size: 16px;
  }
  .innovation p {
    font-size: 12px;
  }
  .innovation > .icon {
    width: 16px;
  }
  .path-heading h2,
  .milestone-heading h2 {
    font-size: 27px;
  }
  .path-heading > p {
    font-size: 12px;
    margin-top: 12px;
  }
  .path-step {
    padding-left: 60px;
  }
  .path-step p {
    font-size: 12px;
  }
  .feedback-loop {
    font-size: 11px;
    letter-spacing: 1px;
    gap: 12px;
  }
  .feedback-loop .icon {
    display: none;
  }
  .milestone-heading {
    display: block;
    margin-bottom: 32px;
  }
  .milestone-heading .text-action {
    margin-top: 12px;
  }
  .timeline {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .timeline li {
    padding: 0 0 32px 28px;
    border-left: 1px solid var(--border);
    margin-left: 4px;
  }
  .timeline li:last-child {
    padding: 0 0 0 28px;
    border-color: transparent;
  }
  .timeline time {
    font-size: 25px;
  }
  .timeline-rule {
    position: absolute;
    top: 0;
    left: -5px;
    width: 9px;
    height: 10px;
    margin-top: 0;
  }
  .timeline-rule:after {
    display: none;
  }
  .timeline-rule:before {
    top: 9px;
    left: 0;
  }
  .timeline h3 {
    margin-top: 12px;
    font-size: 16px;
  }
  .timeline p {
    max-width: none;
    font-size: 12px;
  }
  .footer-main {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-block: 28px;
  }
  .footer-brand {
    display: block;
  }
  .footer-brand .brand-crop {
    height: 69px;
    margin-block: -6px;
  }
  .footer-brand p {
    font-size: 11px;
    margin-top: 8px;
  }
  .footer h3 {
    font-size: 13px;
    margin-bottom: 12px;
  }
  .contact-list {
    font-size: 12px;
  }
  .footer-links {
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    font-size: 11px;
  }
  .footer-links a,
  .footer-links button {
    min-height: 44px;
    line-height: 44px;
  }
  .footer-bottom {
    display: block;
    line-height: 2;
    font-size: 10px;
    padding-block: 16px;
  }
  .footer-bottom span {
    display: block;
  }
  .dialog-head {
    padding: 16px 20px;
  }
  .dialog-head h2 {
    font-size: 18px;
  }
  .dialog-body {
    padding: 24px 20px;
  }

  .dialog-body > p,
  .dialog-body li {
    font-size: 14px;
  }
  .search-field input {
    padding-inline: 10px;
    font-size: 14px;
  }
  .search-submit {
    padding-inline: 14px;
    font-size: 14px;
  }
}
@media (max-width: 360px) {

  .identity {
    width: 208px;
  }
  .masthead .brand-crop {
    transform: scale(0.79);
  }
  .stat-value .honor {
    font-size: 19px;
  }
  .stat {
    padding-left: 18px;
  }
  .section-heading > span {
    display: none;
  }
  .path-heading h2 {
    font-size: 25px;
  }
  .intro h2 {
    font-size: 25px;
  }
  .footer-links {
    grid-template-columns: 1fr 1fr;
  }
}
/* 减少动态效果与打印适配 */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *:before,
  *:after {
    animation: none !important;
    transition: none !important;
  }
}
.stats {
  margin-block: 0;
}
.footer-brand .brand-crop {
  width: 262px;
}
.path-step p br {
  display: initial;
}
@media print {
  .nav-shell,
  .header-actions,
  dialog,
  .text-action,
  .step-detail {
    display: none !important;
  }

  .overview,
  .path-section,
  .milestone-section {
    padding-block: 32px;
  }
  .path-section,
  .footer {
    print-color-adjust: exact;
  }
  .wrap {
    width: 94%;
  }
  .footer-main {
    padding-block: 24px;
  }
}

/* 本地图片路径相对于当前样式表。 */
.brand-crop {
  background-image: url('../images/reference.png');
}

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}
.stat-value {
  margin: 0;
}
.intro-followup {
  margin-top: 16px;
}

/* 二级页面沿用首页的颜色、字体、页头和页脚。 */
.page-banner {
  padding: 16px 0;
  background: var(--background);
  border-bottom: 1px solid var(--border);
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
}
.breadcrumb a:hover {
  color: var(--brand);
  text-decoration: underline;
}
.breadcrumb .icon {
  width: 12px;
  height: 12px;
}
.subpage-layout {
  display: grid;
  grid-template-columns: 224px minmax(0, 1fr);
  align-items: start;
  gap: 48px;
  min-height: 560px;
  padding-block: 48px 72px;
}
.section-sidebar {
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--border);
}
.section-sidebar h2 {
  padding: 20px 24px;
  background: var(--brand);
  color: white;
  font: 500 22px/1.5 'STSong', 'SimSun', serif;
}
.section-sidebar li + li {
  border-top: 1px solid var(--border);
}
.section-sidebar a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 56px;
  padding: 12px 20px;
  font-size: 14px;
  border-left: 3px solid transparent;
}
.section-sidebar a .icon {
  width: 16px;
  height: 16px;
  color: var(--subtle);
}
.section-sidebar a:hover,
.section-sidebar a[aria-current='page'] {
  color: var(--brand);
  background: var(--background);
  border-left-color: var(--accent);
}
.section-sidebar a[aria-current='page'] {
  font-weight: 600;
}
.content-panel {
  min-width: 0;
}
.list-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--brand);
}
.list-heading h1 {
  color: var(--brand);
  font: 600 25px/1.5 'STSong', 'SimSun', serif;
}
.list-count {
  font-size: 12px;
  color: var(--muted);
}
.article-list > li {
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}
.list-item-label {
  display: inline-block;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 8px;
}
.article-list h3 {
  color: var(--brand);
  font-size: 19px;
  line-height: 1.7;
  font-weight: 600;
  margin-bottom: 10px;
}
.article-list h3 a:hover {
  color: var(--brand);
  text-decoration: underline;
  text-underline-offset: 5px;
}
.article-summary {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.95;
}
.read-article {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  margin-top: 12px;
  color: var(--brand);
  font-size: 13px;
}
.read-article .icon {
  width: 17px;
  height: 17px;
}
.read-article:hover {
  text-decoration: underline;
  text-underline-offset: 5px;
}
.list-end {
  margin-top: 24px;
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}
.empty-list {
  padding: 48px 24px;
  text-align: center;
  background: var(--background);
  margin-top: 24px;
  border: 1px solid var(--border);
}
.empty-list > .icon {
  width: 36px;
  height: 36px;
  color: var(--brand);
  margin-bottom: 16px;
}
.empty-list h3 {
  font-size: 20px;
  margin-bottom: 12px;
}
.empty-list p {
  font-size: 14px;
  color: var(--muted);
}
.article-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 24px;
  margin-bottom: 28px;
}
.article-header h1 {
  color: var(--brand);
  font: 600 30px/1.65 'STSong', 'SimSun', 'Songti SC', serif;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  color: var(--muted);
  font-size: 12px;
}
.article-meta a {
  color: var(--brand);
}
.article-lead {
  border-left: 3px solid var(--accent);
  padding: 20px 24px;
  background: var(--surface-warm);
  font-size: 16px;
  line-height: 2;
  margin-bottom: 32px;
}
.article-body {
  font-size: 16px;
  line-height: 2;
  overflow-wrap: anywhere;
}
.article-body h2 {
  font-size: 21px;
  line-height: 1.7;
  margin: 32px 0 16px;
  color: var(--brand);
}
.article-body p {
  margin-bottom: 16px;
}
.article-body ul {
  list-style: disc;
  padding-left: 24px;
  margin-bottom: 24px;
}
.article-body li {
  padding-left: 4px;
  margin-bottom: 8px;
}
.article-note {
  color: var(--muted);
  font-size: 12px;
  padding-top: 24px;
  margin-top: 32px;
  border-top: 1px solid var(--border);
}
.article-navigation {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 32px;
  padding: 24px 0;
  border-block: 1px solid var(--border);
}
.article-navigation > * {
  min-width: 0;
  line-height: 1.8;
  padding-block: 8px;
}
.article-navigation small {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 8px;
}
.article-navigation strong {
  font-weight: 500;
  font-size: 14px;
}
.article-navigation a:hover strong {
  color: var(--brand);
  text-decoration: underline;
}
.article-navigation .unavailable {
  color: var(--muted);
  font-size: 14px;
}
.article-back {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--border);
  padding: 10px 20px;
  min-height: 44px;
  margin-top: 24px;
  color: var(--brand);
  font-size: 14px;
}
.article-back .icon {
  width: 18px;
  height: 18px;
  transform: rotate(180deg);
}
.article-back:hover {
  background: var(--background);
}
.article-table-wrap {
  overflow-x: auto;
  margin: 24px 0;
}
.article-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.article-table th,
.article-table td {
  padding: 12px 16px;
  text-align: left;
  border: 1px solid var(--border);
}
.article-table th {
  font-weight: 600;
  background: var(--surface-warm);
}
.sitemap-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.sitemap-group h2 {
  color: var(--brand);
  font-size: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--brand);
}
.sitemap-group ul {
  margin-top: 12px;
}
.sitemap-group li a {
  display: block;
  padding: 10px 0;
  font-size: 14px;
}
.sitemap-group a:hover {
  color: var(--brand);
  text-decoration: underline;
}
.sitemap-group .no-materials {
  padding-block: 16px;
  color: var(--muted);
  font-size: 13px;
}
@media (max-width: 1100px) {
  .subpage-layout {
    grid-template-columns: 196px minmax(0, 1fr);
    gap: 32px;
  }
  .section-sidebar a {
    padding-inline: 16px;
    font-size: 13px;
  }
}
@media (max-width: 800px) {
  .subpage-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
    padding-top: 32px;
  }
  .section-sidebar {
    border: none;
  }
  .section-sidebar h2 {
    background: none;
    color: var(--brand);
    padding: 0 0 12px;
    font-size: 18px;
  }
  .section-sidebar ul {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 4px 3px 8px;
  }
  .section-sidebar li,
  .section-sidebar li + li {
    border: 0;
    flex-shrink: 0;
  }
  .section-sidebar a {
    min-height: 44px;
    border: 1px solid var(--border);
    padding: 8px 14px;
    font-size: 13px;
  }
  .section-sidebar a[aria-current='page'] {
    color: white;
    background: var(--brand);
    border-color: var(--brand);
  }
  .section-sidebar .icon {
    display: none;
  }
  .article-header h1 {
    font-size: 28px;
  }
}
@media (max-width: 600px) {
  .subpage-layout {
    padding-block: 24px 48px;
    gap: 24px;
  }
  .list-heading h1 {
    font-size: 23px;
  }
  .article-list > li {
    padding-block: 24px;
  }
  .article-list h3 {
    font-size: 18px;
  }
  .article-summary {
    font-size: 13px;
  }
  .article-header h1 {
    font-size: 25px;
  }
  .article-lead {
    padding: 16px;
    font-size: 14px;
  }
  .article-body {
    font-size: 15px;
  }
  .article-body h2 {
    font-size: 19px;
  }
  .article-navigation {
    grid-template-columns: 1fr;
    gap: 12px;
    padding-block: 16px;
  }
  .article-table th,
  .article-table td {
    padding: 10px;
    font-size: 13px;
  }
  .sitemap-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}
@media print {
  .page-banner,
  .section-sidebar,
  .article-navigation,
  .article-back {
    display: none !important;
  }
  .subpage-layout {
    display: block;
    padding-block: 20px;
  }
}

/* 仅补充 CMS 分页、富文本及附件样式，基础设计沿用原静态页面。 */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
.intro-body {
  color: var(--muted);
  line-height: 2.05;
  font-size: 15px;
}
.intro-body p + p {
  margin-top: 16px;
}
.innovation-copy {
  min-width: 0;
}
.timeline .milestone-date {
  font: 26px/1.2 Georgia, serif;
  color: var(--brand);
}
.timeline h3 a:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}
.pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 32px;
  font-size: 13px;
}
.pagination > a,
.pagination > .current,
.pagination > .disabled {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid var(--border);
}
.pagination > a:hover {
  color: var(--brand);
  border-color: var(--brand);
  background: var(--background);
}
.pagination > .current {
  color: white;
  background: var(--brand);
  border-color: var(--brand);
}
.pagination > .disabled,
.page-status {
  color: var(--muted);
}
.page-status {
  flex-basis: 100%;
  margin-top: 8px;
  text-align: center;
}
.article-body,
.intro-body {
  overflow-x: auto;
}
.article-body img,
.intro-body img {
  max-width: 100%;
  height: auto;
}
.article-body video,
.article-body iframe {
  max-width: 100%;
}
.article-body ol {
  list-style: decimal;
  padding-left: 24px;
  margin-bottom: 24px;
}
.article-attachments {
  margin-top: 32px;
  padding: 24px;
  border: 1px solid var(--border);
  background: var(--background);
}
.article-attachments h2 {
  font-size: 18px;
  color: var(--brand);
  margin-bottom: 12px;
}
.attachment-list a {
  display: block;
  padding: 10px 0;
  min-height: 44px;
  color: var(--brand);
  text-decoration: underline;
  text-underline-offset: 4px;
  overflow-wrap: anywhere;
}
.attachment-list li + li {
  border-top: 1px solid var(--border);
}
@media (max-width: 900px) {
  .intro-body {
    max-width: 650px;
  }
}
@media (max-width: 600px) {
  .intro-body {
    font-size: 14px;
    line-height: 2;
  }
  .timeline .milestone-date {
    font-size: 25px;
  }
  .pagination {
    gap: 6px;
  }
  .article-attachments {
    padding: 16px;
  }
}

.site-search-form {
  margin-block: 24px;
}