.ai-center-page {
  background: #f4f8fc;
  color: #122b4c;
  font-family: "HarmonyOS Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  overflow-x: hidden;
}

.ai-center-page *,
.ai-center-page *::before,
.ai-center-page *::after {
  box-sizing: border-box;
}

.ai-center-page main {
  overflow: clip;
}

.ai-center-page h1,
.ai-center-page h2,
.ai-center-page h3,
.ai-center-page p,
.ai-center-page figure,
.ai-center-page ol,
.ai-center-page ul,
.ai-center-page address {
  margin: 0;
}

.ai-center-page ol,
.ai-center-page ul {
  padding: 0;
  list-style: none;
}

.ai-center-page a {
  color: inherit;
  text-decoration: none;
}

.ai-shell {
  width: min(1200px, calc(100% - 80px));
  margin: 0 auto;
}

.ai-hero {
  min-height: 500px;
  overflow: hidden;
  background: #eaf4ff url("../images/ai-center-banner-20260716-v2.jpg") center / cover no-repeat;
}

.ai-hero__inner {
  display: flex;
  min-height: 500px;
  align-items: center;
  padding-top: 40px;
}

.ai-hero__content {
  width: min(680px, 60%);
}

.ai-hero__eyebrow {
  position: relative;
  display: inline-flex;
  min-width: 252px;
  min-height: 34px;
  align-items: center;
  gap: 25px;
  padding: 5px 26px;
  border-radius: 8px 8px 8px 0;
  background: rgba(235, 245, 255, 0.88);
  color: #173a6a;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.4;
}

.ai-hero__eyebrow span {
  color: #0a78ea;
}

.ai-hero__eyebrow strong {
  color: #173a6a;
  font-weight: 800;
}

.ai-hero h1 {
  margin-top: 18px;
  color: #092653;
  font-size: 46px;
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1.25;
}

.ai-hero__subtitle {
  max-width: 610px;
  margin-top: 22px;
  color: #3f5f82;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.8;
}

.ai-anchor-nav {
  position: sticky;
  top: 76px;
  z-index: 60;
  width: min(1200px, calc(100% - 80px));
  margin: -38px auto 0;
  border: 1px solid rgba(206, 222, 237, 0.88);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 10px 26px rgba(21, 68, 115, 0.1);
  backdrop-filter: blur(12px);
}

.ai-anchor-nav__inner {
  display: grid;
  width: 100%;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.ai-anchor-nav a {
  position: relative;
  display: flex;
  min-height: 76px;
  align-items: center;
  gap: 12px;
  justify-content: center;
  color: #435d78;
  font-size: 15px;
  font-weight: 700;
  transition: color 180ms ease, background-color 180ms ease;
}

.ai-anchor-nav img {
  width: 32px;
  height: 32px;
  flex: 0 0 auto;
  object-fit: cover;
}

.ai-anchor-nav a::after {
  position: absolute;
  right: 36%;
  bottom: 0;
  left: 36%;
  height: 3px;
  background: #1f80e8;
  content: "";
  opacity: 0;
  transform: scaleX(0.3);
  transition: opacity 180ms ease, transform 180ms ease;
}

.ai-anchor-nav a:hover,
.ai-anchor-nav a:focus-visible {
  background: #f4f9fe;
  color: #116ecf;
}

.ai-anchor-nav a:hover::after,
.ai-anchor-nav a:focus-visible::after {
  opacity: 1;
  transform: scaleX(1);
}

.ai-section {
  padding: 92px 0;
  scroll-margin-top: 142px;
}

.ai-section-head h2 {
  color: #122d52;
  font-size: 34px;
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1.3;
}

.ai-section-head > span {
  display: block;
  width: 40px;
  height: 3px;
  margin-top: 20px;
  background: #20a66b;
}

.ai-section-head--center {
  text-align: center;
}

.ai-section-head--center > span {
  margin-right: auto;
  margin-left: auto;
}

.ai-intro {
  padding-top: 82px;
  background: #f8fbff;
}

.ai-intro__lead {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 44px;
  margin-top: 24px;
  color: #334f70;
  font-size: 14px;
  line-height: 2;
}

.ai-intro__lead p:first-child {
  color: #284666;
  font-weight: 600;
}

.ai-intro__lead p + p {
  padding-left: 44px;
  border-left: 3px solid #bdd7f1;
}

.ai-task-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
  margin-top: 28px;
}

.ai-task {
  position: relative;
  min-height: 238px;
  overflow: hidden;
  padding: 28px 24px 30px;
  border: 1px solid #d4e3f0;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 10px 24px rgba(39, 94, 150, 0.07);
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.ai-task::after {
  position: absolute;
  right: -24px;
  bottom: -34px;
  width: 170px;
  height: 86px;
  background: rgba(60, 145, 230, 0.08);
  clip-path: polygon(34% 0, 100% 18%, 100% 100%, 0 100%);
  content: "";
}

.ai-task:nth-child(2)::after {
  background: rgba(27, 186, 193, 0.12);
}

.ai-task:nth-child(3)::after {
  background: rgba(81, 139, 225, 0.1);
}

.ai-task:nth-child(4)::after {
  background: rgba(82, 139, 224, 0.08);
}

.ai-task:hover {
  transform: translateY(-4px);
  border-color: #a8cae8;
  box-shadow: 0 15px 30px rgba(25, 77, 130, 0.1);
}

.ai-task > span {
  display: block;
  color: #6aa9f4;
  font-size: 32px;
  font-weight: 800;
  line-height: 1;
}

.ai-task:nth-child(2) > span {
  color: #55bdd8;
}

.ai-task > img {
  position: absolute;
  top: 22px;
  right: 20px;
  width: 58px;
  height: 58px;
  object-fit: cover;
}

.ai-task h3 {
  position: relative;
  z-index: 1;
  margin-top: 24px;
  color: #153558;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.5;
}

.ai-task h3::after {
  display: block;
  width: 28px;
  height: 3px;
  margin-top: 15px;
  background: #20a66b;
  content: "";
}

.ai-task p {
  position: relative;
  z-index: 1;
  margin-top: 16px;
  color: #405b78;
  font-size: 13px;
  line-height: 1.8;
}

.ai-organization {
  background: #eef6fc url("../images/ai-organization-bg-20260716.jpg") center / cover no-repeat;
}

.ai-organization .ai-section-head > span {
  display: none;
}

.ai-organization .ai-section-head h2 {
  display: inline-flex;
  align-items: center;
  gap: 30px;
  color: #0d3473;
  font-size: 38px;
}

.ai-organization .ai-section-head h2::before,
.ai-organization .ai-section-head h2::after {
  width: 64px;
  height: 8px;
  background: #2f82ef;
  clip-path: polygon(0 42%, 78% 42%, 88% 0, 100% 0, 92% 100%, 82% 100%, 76% 62%, 0 62%);
  content: "";
}

.ai-organization .ai-section-head h2::after {
  transform: scaleX(-1);
}

.ai-organization__subtitle {
  margin-top: 10px;
  color: #536b88;
  font-size: 16px;
  line-height: 1.6;
}

.ai-org-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.ai-org-item {
  --org-accent: #1675df;
  position: relative;
  display: flex;
  min-height: 252px;
  align-items: center;
  flex-direction: column;
  overflow: hidden;
  padding: 20px 16px 30px;
  border: 1px solid #bcd8f2;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 8px 22px rgba(44, 111, 181, 0.09);
  text-align: center;
}

.ai-org-item:nth-child(2) {
  --org-accent: #0aa58f;
}

.ai-org-item:nth-child(4) {
  --org-accent: #684adc;
}

.ai-org-item img {
  width: 92px;
  height: 92px;
  flex: 0 0 auto;
  object-fit: cover;
}

.ai-org-item strong {
  color: var(--org-accent);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.4;
}

.ai-org-item strong::after {
  display: block;
  width: 30px;
  height: 2px;
  margin: 12px auto 0;
  background: var(--org-accent);
  content: "";
}

.ai-org-item p {
  margin-top: 12px;
  color: #3f5671;
  font-size: 13px;
  line-height: 1.7;
}

.ai-org-item em {
  position: absolute;
  right: 12px;
  bottom: 2px;
  color: var(--org-accent);
  font-size: 42px;
  font-style: italic;
  font-weight: 800;
  line-height: 1;
  opacity: 0.1;
}

.ai-subsection-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  margin-top: 74px;
  padding-bottom: 22px;
  border-bottom: 1px solid #cddfec;
}

.ai-subsection-head > div {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.ai-subsection-head span {
  color: #1677dc;
  font-size: 44px;
  font-weight: 800;
  line-height: 1;
}

.ai-subsection-head strong {
  color: #173757;
  font-size: 22px;
  line-height: 1.4;
}

.ai-subsection-head p {
  max-width: 650px;
  color: #64788d;
  font-size: 14px;
  line-height: 1.75;
  text-align: right;
}

.ai-tg-panel {
  margin-top: 30px;
  padding: 18px 40px 38px;
  border: 1px solid #afd0ee;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.45);
  box-shadow: 0 10px 28px rgba(47, 112, 177, 0.08);
}

.ai-tg-panel__head {
  align-items: center;
  margin-top: 0;
  padding-bottom: 14px;
  border-bottom: 0;
}

.ai-tg-panel__head > div {
  align-items: center;
  gap: 16px;
}

.ai-tg-panel__head span {
  display: flex;
  width: 86px;
  height: 58px;
  align-items: center;
  justify-content: center;
  border-radius: 7px;
  background: #176fdb;
  clip-path: polygon(8% 0, 100% 0, 88% 100%, 0 100%);
  color: #fff;
  font-size: 36px;
  font-style: italic;
}

.ai-tg-panel__head strong {
  color: #123c78;
  font-size: 24px;
}

.ai-tg-panel__head p {
  max-width: 630px;
  color: #61758f;
}

.ai-tg-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 0 !important;
}

.ai-tg-grid li {
  --tg-accent: #1676df;
  display: grid;
  min-height: 88px;
  align-items: center;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 14px;
  padding: 10px 14px;
  border: 1px solid #c9dded;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 5px 14px rgba(51, 109, 169, 0.07);
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.ai-tg-grid li:nth-child(3n + 2),
.ai-tg-grid li:nth-child(3n + 1):nth-child(even) {
  --tg-accent: #0aa395;
}

.ai-tg-grid li:nth-child(4n) {
  --tg-accent: #6248da;
}

.ai-tg-grid li:hover {
  transform: translateY(-2px);
  border-color: #83b8e3;
  box-shadow: 0 9px 20px rgba(42, 104, 166, 0.13);
}

.ai-tg-grid img {
  box-sizing: content-box;
  width: 52px;
  height: 52px;
  padding-right: 12px;
  border-right: 1px solid #cbddeb;
  object-fit: cover;
}

.ai-tg-grid li > div {
  min-width: 0;
}

.ai-tg-grid span {
  display: block;
  color: var(--tg-accent);
  font-size: 14px;
  font-weight: 800;
  line-height: 1;
}

.ai-tg-grid strong {
  display: block;
  margin-top: 8px;
  color: #23415f;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.ai-people {
  background: #fff;
}

.ai-subsection-head--compact {
  margin-top: 52px;
}

.ai-expert-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0 34px;
  margin-top: 24px !important;
  border-top: 1px solid #d8e5ef;
}

.ai-expert-grid li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  min-height: 72px;
  padding: 13px 12px;
  border-bottom: 1px solid #d8e5ef;
}

.ai-expert-grid span {
  color: #546c83;
  font-size: 13px;
  line-height: 1.55;
}

.ai-expert-grid strong {
  color: #173858;
  font-size: 16px;
  white-space: nowrap;
}

.ai-members {
  margin-top: 64px;
  overflow: hidden;
  border: 1px solid #cfe0ed;
  border-radius: 8px;
  background: #f7fbfe;
}

.ai-members summary {
  position: relative;
  display: flex;
  min-height: 112px;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: 24px 72px 24px 32px;
  color: #173755;
  cursor: pointer;
  list-style: none;
}

.ai-members summary::-webkit-details-marker {
  display: none;
}

.ai-members summary:focus {
  outline: none;
}

.ai-members summary:focus-visible {
  outline: 2px solid #247ddd;
  outline-offset: -2px;
}

.ai-members summary::after {
  position: absolute;
  top: 50%;
  right: 32px;
  width: 14px;
  height: 14px;
  border-right: 2px solid #247ddd;
  border-bottom: 2px solid #247ddd;
  content: "";
  transform: translateY(-70%) rotate(45deg);
  transition: transform 180ms ease;
}

.ai-members[open] summary::after {
  transform: translateY(-20%) rotate(225deg);
}

.ai-members summary span {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
}

.ai-members summary strong {
  color: #1678df;
  font-size: 42px;
  line-height: 1;
}

.ai-members summary small {
  color: #60768c;
  font-size: 14px;
}

.ai-member-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0 28px;
  padding: 12px 32px 32px !important;
  border-top: 1px solid #dce8f1;
  background: #fff;
}

.ai-member-grid li {
  display: flex;
  min-height: 56px;
  align-items: center;
  padding: 10px 4px 10px 24px;
  border-bottom: 1px solid #e4edf4;
  color: #4f687f;
  font-size: 13px;
  line-height: 1.55;
}

.ai-member-grid li::before {
  width: 5px;
  height: 5px;
  margin-left: -20px;
  margin-right: 12px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: #33a873;
  content: "";
}

.ai-resources {
  background: #eef5fb;
}

.ai-safer {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.85fr);
  gap: 0;
  margin-top: 54px;
  overflow: hidden;
  border-radius: 8px;
  background: #0f468f;
}

.ai-safer__visual {
  min-height: 390px;
  background: #0f4da0;
}

.ai-safer__visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ai-safer__content {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
  padding: 48px 42px;
  color: #fff;
}

.ai-safer__content > span {
  color: #73e2b6;
  font-size: 13px;
  font-weight: 800;
}

.ai-safer__content h3 {
  margin-top: 16px;
  font-size: 30px;
  font-weight: 800;
  line-height: 1.35;
}

.ai-safer__content p {
  margin-top: 17px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
  line-height: 1.85;
}

.ai-safer__content a {
  align-self: flex-start;
  margin-top: 26px;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
}

.ai-resource-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.ai-resource-card {
  position: relative;
  display: flex;
  min-height: 250px;
  flex-direction: column;
  padding: 28px 26px;
  border: 1px solid #d1e2ee;
  border-radius: 8px;
  background: #fff;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.ai-resource-card:hover {
  transform: translateY(-4px);
  border-color: #9fc6e5;
  box-shadow: 0 15px 30px rgba(28, 81, 135, 0.1);
}

.ai-resource-card > span {
  color: #169361;
  font-size: 13px;
  font-weight: 800;
}

.ai-resource-card h3 {
  margin-top: 18px;
  color: #18395c;
  font-size: 19px;
  font-weight: 800;
  line-height: 1.55;
}

.ai-resource-card p {
  margin-top: 14px;
  color: #61768b;
  font-size: 14px;
  line-height: 1.75;
}

.ai-resource-card b {
  margin-top: auto;
  padding-top: 22px;
  color: #1677d8;
  font-size: 14px;
}

.ai-resource-card--download {
  border-color: #bdd8eb;
  background: #f7fcff;
}

.ai-news {
  background: #fff;
}

.ai-news-featured {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 54px;
}

.ai-news-feature {
  overflow: hidden;
  border: 1px solid #d7e5ef;
  border-radius: 8px;
  background: #fff;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.ai-news-feature:hover {
  transform: translateY(-4px);
  border-color: #a7cae4;
  box-shadow: 0 16px 32px rgba(26, 73, 120, 0.1);
}

.ai-news-feature figure {
  aspect-ratio: 1.82;
  overflow: hidden;
  background: #dce8f2;
}

.ai-news-feature img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 260ms ease;
}

.ai-news-feature:hover img {
  transform: scale(1.025);
}

.ai-news-feature > div {
  min-height: 158px;
  padding: 24px 26px;
}

.ai-news-feature span {
  color: #229562;
  font-size: 13px;
  font-weight: 800;
}

.ai-news-feature h3 {
  margin-top: 13px;
  color: #18395a;
  font-size: 20px;
  font-weight: 800;
  line-height: 1.55;
}

.ai-news-feature b {
  display: block;
  margin-top: 18px;
  color: #1c78d5;
  font-size: 14px;
}

.ai-tg-news {
  margin-top: 28px;
  border-top: 1px solid #d7e4ed;
}

.ai-tg-news a {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr) auto;
  gap: 22px;
  align-items: center;
  min-height: 82px;
  padding: 16px 12px;
  border-bottom: 1px solid #d7e4ed;
  transition: background-color 180ms ease;
}

.ai-tg-news a:hover {
  background: #f6fafe;
}

.ai-tg-news span {
  color: #1780e0;
  font-size: 14px;
  font-weight: 800;
}

.ai-tg-news h3 {
  color: #344f6c;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
}

.ai-tg-news b {
  color: #2482df;
  font-size: 20px;
}

.ai-join {
  overflow: hidden;
  background: #edf5fd;
}

.ai-join-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 46px !important;
}

.ai-join-steps li {
  position: relative;
  min-height: 202px;
  overflow: hidden;
  padding: 30px 28px 26px;
  border: 1px solid rgba(177, 207, 232, 0.82);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 8px 22px rgba(56, 111, 165, 0.1);
}

.ai-join-steps span {
  color: #1674dd;
  font-size: 31px;
  font-weight: 800;
  line-height: 1;
}

.ai-join-steps img {
  position: absolute;
  top: 31px;
  right: 28px;
  width: 68px;
  height: 68px;
  object-fit: contain;
}

.ai-join-steps strong {
  display: block;
  max-width: calc(100% - 82px);
  margin-top: 24px;
  color: #13395f;
  font-size: 20px;
}

.ai-join-steps p {
  max-width: calc(100% - 76px);
  margin-top: 14px;
  color: #5c738a;
  font-size: 14px;
  line-height: 1.8;
}

.ai-downloads {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 18px;
  align-items: center;
  margin-top: 24px;
  padding: 24px 30px;
  border: 1px solid rgba(177, 207, 232, 0.86);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 8px 22px rgba(56, 111, 165, 0.09);
}

.ai-downloads__intro {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
}

.ai-downloads__intro > img {
  width: 58px;
  height: 58px;
  object-fit: contain;
}

.ai-downloads h3 {
  color: #13395f;
  font-size: 20px;
}

.ai-downloads p {
  margin-top: 8px;
  color: #6a7d90;
  font-size: 13px;
}

.ai-downloads > a,
.ai-charter__content a {
  display: inline-flex;
  min-height: 44px;
  gap: 9px;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border: 1px solid #1f7bd8;
  border-radius: 6px;
  color: #176fc5;
  font-size: 14px;
  font-weight: 700;
  text-align: center;
  transition: background-color 180ms ease, color 180ms ease;
}

.ai-downloads > a > span,
.ai-charter__content a > span {
  font-size: 14px;
  line-height: 1;
}

.ai-downloads > a:hover,
.ai-charter__content a:hover {
  background: #1f7bd8;
  color: #fff;
}

.ai-charter {
  display: grid;
  grid-template-columns: 345px minmax(0, 1fr);
  gap: 16px;
  margin-top: 24px;
  align-items: stretch;
}

.ai-charter__content {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  padding: 34px 30px;
  border-radius: 8px;
  background-color: #0d66c9;
  background-image: url("../images/ai-join-charter-bg-20260716.jpg");
  background-position: center bottom;
  background-size: auto 210px;
  background-repeat: no-repeat;
  background-blend-mode: multiply;
  color: #fff;
}

.ai-charter__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 13px;
  font-weight: 800;
}

.ai-charter__label::before {
  height: 18px;
  border: 1px solid currentColor;
  border-radius: 2px;
  content: "";
}

.ai-charter__content h3 {
  margin-top: 25px;
  font-size: 24px;
  font-weight: 800;
  line-height: 1.5;
}

.ai-charter__content p {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 14px;
  line-height: 1.85;
}

.ai-charter__content > div {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.ai-charter__content a {
  border-color: rgba(255, 255, 255, 0.65);
  color: #fff;
}

.ai-charter__content a:first-child {
  border-color: #fff;
  background: #fff;
  color: #176fc5;
}

.ai-charter__content a:hover {
  border-color: #fff;
  background: #fff;
  color: #123e75;
}

.ai-charter__content a:first-child:hover {
  background: rgba(255, 255, 255, 0.88);
}

.ai-charter__preview {
  width: 100%;
  min-height: 520px;
  border: 1px solid #c6d9e8;
  border-radius: 8px;
  background: #fff;
}

.ai-contact {
  padding: 36px 0;
  background: #102f57;
  color: #fff;
}

.ai-contact__inner {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

.ai-contact h2 {
  font-size: 25px;
  font-weight: 800;
}

.ai-contact address {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  font-style: normal;
}

.ai-contact__person {
  display: grid;
  grid-template-columns: 74px 110px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  min-height: 58px;
  padding-left: 24px;
  border-left: 1px solid rgba(255, 255, 255, 0.22);
}

.ai-contact__person strong {
  font-size: 17px;
}

.ai-contact__person a {
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.ai-contact__person a:hover {
  color: #7fe0bb;
}

.ai-center-page .footbanquan {
  display: flex;
  min-height: 96px;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 0;
  background: url("../images/news-footer-20260705.png") center bottom / cover no-repeat;
  color: rgba(255, 255, 255, 0.9);
}

.ai-center-page .footbanquan::before,
.ai-center-page .footbanquan::after {
  display: none;
  content: none;
}

.ai-center-page .footbanquan .mainbox {
  position: relative;
  z-index: 1;
  display: flex;
  width: min(1200px, calc(100% - 80px));
  min-height: 96px;
  align-items: center;
  justify-content: center;
  gap: clamp(28px, 4vw, 72px);
  margin: 0 auto;
  padding: 0;
  color: inherit;
  font-size: 13px;
  line-height: 1.4;
  text-align: center;
}

.ai-center-page .footbanquan span,
.ai-center-page .footbanquan a {
  color: inherit;
  text-decoration: none;
  white-space: nowrap;
}

.ai-center-page .footbanquan .cls {
  display: none;
}

.ai-reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 520ms ease, transform 520ms ease;
}

.ai-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.ai-delay-100 { transition-delay: 80ms; }
.ai-delay-200 { transition-delay: 150ms; }
.ai-delay-300 { transition-delay: 220ms; }

@media (prefers-reduced-motion: reduce) {
  .ai-center-page *,
  .ai-center-page *::before,
  .ai-center-page *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .ai-reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 1100px) {
  .ai-shell {
    width: min(920px, calc(100% - 56px));
  }

  .ai-anchor-nav {
    width: min(920px, calc(100% - 56px));
  }

  .ai-anchor-nav a {
    gap: 8px;
    font-size: 14px;
  }

  .ai-task-grid,
  .ai-tg-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ai-org-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .ai-tg-panel {
    padding-right: 24px;
    padding-left: 24px;
  }

  .ai-expert-grid,
  .ai-member-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ai-safer {
    grid-template-columns: minmax(0, 1.05fr) minmax(330px, 0.95fr);
  }

  .ai-resource-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ai-contact__person {
    grid-template-columns: 66px minmax(0, 1fr);
  }

  .ai-contact__person a:last-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 820px) {
  .ai-hero,
  .ai-hero__inner {
    min-height: 430px;
  }

  .ai-hero {
    background-position: 34% center;
  }

  .ai-hero__content {
    width: 66%;
  }

  .ai-hero h1 {
    font-size: 38px;
  }

  .ai-anchor-nav__inner {
    display: flex;
    width: 100%;
    overflow-x: auto;
    padding: 0 20px;
    scrollbar-width: none;
  }

  .ai-anchor-nav {
    width: 100%;
    margin-top: 0;
    border-right: 0;
    border-left: 0;
    border-radius: 0;
  }

  .ai-anchor-nav__inner::-webkit-scrollbar {
    display: none;
  }

  .ai-anchor-nav a {
    min-width: 136px;
    min-height: 64px;
    flex: 0 0 auto;
  }

  .ai-anchor-nav img {
    width: 28px;
    height: 28px;
  }

  .ai-intro__lead,
  .ai-news-featured {
    grid-template-columns: 1fr;
  }

  .ai-intro__lead p + p {
    padding-top: 22px;
    padding-left: 0;
    border-top: 1px solid #d6e4f0;
    border-left: 0;
  }

  .ai-org-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ai-tg-panel {
    padding: 24px 20px 30px;
  }

  .ai-subsection-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
  }

  .ai-subsection-head p {
    text-align: left;
  }

  .ai-expert-grid {
    grid-template-columns: 1fr;
  }

  .ai-safer,
  .ai-charter {
    grid-template-columns: 1fr;
  }

  .ai-safer__visual {
    min-height: auto;
    aspect-ratio: 1.78;
  }

  .ai-charter__content {
    min-height: 260px;
  }

  .ai-downloads {
    grid-template-columns: 1fr 1fr;
  }

  .ai-downloads > div {
    grid-column: 1 / -1;
  }

  .ai-contact__inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media (max-width: 620px) {
  .ai-shell {
    width: calc(100% - 32px);
  }

  .ai-hero,
  .ai-hero__inner {
    min-height: 410px;
  }

  .ai-hero {
    background-position: 30% center;
  }

  .ai-hero__inner {
    padding-top: 62px;
    align-items: center;
  }

  .ai-hero__content {
    width: 84%;
  }

  .ai-hero h1 {
    margin-top: 14px;
    font-size: 31px;
    line-height: 1.35;
  }

  .ai-hero__eyebrow {
    min-width: 226px;
    gap: 18px;
    padding-right: 20px;
    padding-left: 20px;
    font-size: 13px;
  }

  .ai-hero__subtitle {
    margin-top: 18px;
    font-size: 15px;
    line-height: 1.75;
  }

  .ai-anchor-nav {
    top: 64px;
  }

  .ai-anchor-nav a {
    min-width: 124px;
    min-height: 58px;
    font-size: 13px;
  }

  .ai-section {
    padding: 68px 0;
    scroll-margin-top: 122px;
  }

  .ai-section-head h2 {
    font-size: 28px;
  }

  .ai-intro__lead {
    gap: 22px;
    margin-top: 28px;
    font-size: 14px;
    line-height: 1.95;
  }

  .ai-task-grid,
  .ai-tg-grid,
  .ai-org-list,
  .ai-member-grid,
  .ai-resource-grid,
  .ai-join-steps,
  .ai-contact address {
    grid-template-columns: 1fr;
  }

  .ai-task-grid {
    gap: 14px;
    margin-top: 38px;
  }

  .ai-task {
    min-height: auto;
    padding: 25px 22px;
  }

  .ai-org-list {
    margin-top: 38px;
  }

  .ai-organization .ai-section-head h2 {
    gap: 14px;
    font-size: 28px;
  }

  .ai-organization .ai-section-head h2::before,
  .ai-organization .ai-section-head h2::after {
    width: 32px;
    height: 6px;
  }

  .ai-organization__subtitle {
    font-size: 14px;
  }

  .ai-org-item {
    min-height: 224px;
  }

  .ai-tg-panel {
    margin-right: -4px;
    margin-left: -4px;
    padding: 20px 14px 24px;
  }

  .ai-subsection-head {
    margin-top: 52px;
  }

  .ai-subsection-head span {
    font-size: 38px;
  }

  .ai-subsection-head strong {
    font-size: 19px;
  }

  .ai-tg-panel__head span {
    width: 72px;
    height: 50px;
    font-size: 31px;
  }

  .ai-tg-panel__head strong {
    font-size: 20px;
  }

  .ai-tg-grid {
    gap: 12px;
  }

  .ai-tg-grid li {
    min-height: auto;
  }

  .ai-expert-grid li {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
  }

  .ai-members {
    margin-top: 46px;
  }

  .ai-members summary {
    min-height: 126px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 8px;
    padding: 20px 58px 20px 20px;
  }

  .ai-members summary::after {
    right: 24px;
  }

  .ai-members summary strong {
    font-size: 36px;
  }

  .ai-member-grid {
    gap: 0;
    padding: 8px 20px 24px !important;
  }

  .ai-member-grid li {
    min-height: 52px;
  }

  .ai-safer {
    margin-top: 38px;
  }

  .ai-safer__content {
    padding: 32px 24px;
  }

  .ai-safer__content h3 {
    font-size: 26px;
  }

  .ai-resource-card {
    min-height: 220px;
  }

  .ai-news-featured,
  .ai-join-steps {
    margin-top: 38px !important;
  }

  .ai-news-feature > div {
    min-height: auto;
  }

  .ai-news-feature h3 {
    font-size: 18px;
  }

  .ai-tg-news a {
    grid-template-columns: 48px minmax(0, 1fr) auto;
    gap: 12px;
    min-height: 96px;
    padding-right: 4px;
    padding-left: 4px;
  }

  .ai-tg-news h3 {
    font-size: 14px;
  }

  .ai-downloads {
    grid-template-columns: 1fr;
    padding: 24px 20px;
  }

  .ai-downloads > div {
    grid-column: auto;
  }

  .ai-downloads > a {
    width: 100%;
  }

  .ai-charter {
    margin-top: 36px;
  }

  .ai-charter__preview {
    display: none;
  }

  .ai-contact {
    padding: 32px 0;
  }

  .ai-contact h2 {
    font-size: 22px;
  }

  .ai-contact address {
    gap: 20px;
  }

  .ai-contact__person {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 10px 14px;
    padding-left: 16px;
  }

  .ai-center-page .footbanquan,
  .ai-center-page .footbanquan .mainbox {
    min-height: 88px;
  }

  .ai-center-page .footbanquan .mainbox {
    width: calc(100% - 32px);
    flex-direction: column;
    gap: 8px;
    font-size: 12px;
    line-height: 1.45;
  }

  .ai-center-page .footbanquan span,
  .ai-center-page .footbanquan a {
    white-space: normal;
    overflow-wrap: anywhere;
  }
}