@charset "utf-8";
/*Technical Support SudyTech*/
@font-face {
  font-family: 'Source Han Serif CN';
  src: url('extends/fonts/SourceHanSerifCN-VF.woff2') format('woff2-variations'),
       url('extends/fonts/SourceHanSerifCN-VF.otf') format('opentype');
  font-weight: 250 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'KlavikaWebBasic';
  src: url('fonts/KlavikaWebBasicRegular.woff2');
  font-weight: 400;  
  font-style: normal;
}

@font-face {
  font-family: 'KlavikaWebBasic';
  src: url('fonts/KlavikaWebBasicMedium.woff2');
  font-weight: 500; 
  font-style: normal;
}
:root {
  --font-sans: "Source Han Sans CN", "Source Han Sans SC", "SourceHanSansCN";
  --font-serif: "Source Han Serif CN", "Source Han Serif SC", "SourceHanSerifCN";
  --navy: #061d43;
  --navy-2: #12315f;
  --blue: #1c5aa6;
  --cyan: #2f6fae;
  --teal: #345d96;
  --red: #d74f58;
  --orange: #d9a148;
  --ink: #15233c;
  --muted: #67738a;
  --line: rgba(18, 49, 95, 0.12);
  --soft: #f5f8fc;
  --paper: #ffffff;
  --content-width: 1500px;
  --radius: 8px;
  --radius-sm: 6px;
  --shadow: 0 18px 48px rgba(8, 35, 74, 0.08);
}

* {
  box-sizing: border-box;
}
* { margin-block-start: 0; margin-block-end: 0;     padding-inline-start:0;padding-inline:0;padding-block:0;}
html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-serif);
  letter-spacing: 0;
}

a {
  color: inherit;
  text-decoration: none;
}
li { list-style: none; }
button {
  font: inherit;
}

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

.icon {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.line1 {text-overflow:-o-ellipsis-lastline;overflow:hidden;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;}
.line2 {text-overflow:-o-ellipsis-lastline;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}
.line3 {text-overflow:-o-ellipsis-lastline;overflow:hidden;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;}
.line4 {text-overflow:-o-ellipsis-lastline;overflow:hidden;display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;}
/* 搜索*/
.wp_search {display:inline-block;position:relative;padding-left:4px;border:1px solid #d0d0d0;}
.wp_search #keyword {width:160px !important;padding:4px 0;border:none;height:20px;line-height:20px;background:transparent;color:#fff;}
.wp_search .search {width:32px;height:30px;border:0px;background:#FFFFFF url(../images/sous.png) no-repeat center;cursor:pointer;vertical-align:top;}

.searchbox .tt {color:#fff;text-align:center;font-size:30px;font-weight:bold;margin-bottom:47px;}
.searchbox {text-align:right;position: fixed;inset:0;z-index:12;background: rgba(0,0,0,0.3);backdrop-filter: blur(10px);display: none;}
.searchbox .fixhead{display: flex;justify-content: flex-end;width: 78%;margin: 120px auto 0;align-items: center;}
.searchbox .fixhead img:first-child{display:none;}
.searchbox .fixhead img:first-child{width:382px}
.searchbox .close{transition: 0.4s;border-radius: 50%;border:1px solid #fff;width:20px;padding:14px;box-sizing: content-box;cursor: pointer;}
.searchbox .close:hover{transform: scale(0.8);}
.wp-search {position:absolute;top:50%;left:50%;transform: translate(-50%,-50%);background: #fff;border-radius:10px;overflow: hidden;width:800px;max-width:92vw;}
.wp-search form {display:block;}
.wp-search .search-input { margin-right:120px;}
.wp-search .search-input input.search-title {display:block;width:100%;line-height:60px;background:none;text-indent: 1em;color:#333;font-size:18px;border:0;outline:0;padding:0;font-family: 'syh';}
.wp-search .search-btn {width:120px;height:60px;position:absolute;right:0;top:0%;}
.wp-search .search-btn input.search-submit {width:100%;height:100%;border:0;outline:0;background:#061d43;cursor:pointer;padding:0;color: #fff;font-size:18px;}
.header .searchbox:hover {width:300px;border-radius:22px;}
.header .searchbox {transition:all 0.4s ease-in-out;}
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  width: 100%;
  min-height: 86px;
  padding: 12px max(40px, calc((100vw - var(--content-width)) / 2));
  background: rgba(255, 255, 255, 0.86);
  border-bottom: none;
  backdrop-filter: blur(18px);
  transition: box-shadow 160ms ease, background 160ms ease, min-height 160ms ease;
}

.site-header.is-scrolled {
  min-height: 72px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 12px 32px rgba(8, 35, 74, 0.08);
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 286px;
}

.tongji-logo {
  display: none;
}

.cdhk-logo {
  width: 360px;
  height: auto;
}

.main-nav .menu{
  display: flex;
  justify-content: right;
  gap: clamp(16px, 2vw, 38px);
}
.main-nav .menu .menu-item{position:relative;}
.main-nav .menu .menu-item .menu-switch-arrow{display:none;}
em.menu-switch-arrow:after{content:">";display: block;color: #061d43;font-family:"宋体";font-size: 16px;border-radius: 0;}
em.menu-switch-arrow.open{transform:rotate(90deg);}
em.menu-switch-arrow{position:absolute;right:0;line-height:40px;width:30px;text-align:center;z-index:1;top:0;font-weight:400;transition: all 0.3s;border-radius: 0;font-style: normal;}
.main-nav a {
  position: relative;
  display: grid;
  align-content: center;
  gap: 4px;
  min-height: 54px;
  color: var(--navy);
  font-weight: 760;
  white-space: nowrap;
}
.main-nav .menu .menu-item .sub-menu{position:absolute;min-width:100%;left: 50%;transform: translateX(-50%);text-align: center;background: #061d43;z-index: 1;padding:0 10px;opacity:0;pointer-events:none;transition:all 0.3s;}
.main-nav .menu .menu-item .sub-menu a{color:#fff;min-height: 36px;}
.main-nav .menu .menu-item:hover .sub-menu{pointer-events:all;opacity:1;}
.main-nav a span {
  font-size: 20px;
  line-height: 1.1;
}

.main-nav a em {
  color: rgba(6, 29, 67, 0.62);
  font-size: 16px;
  font-style: normal;
  font-weight: 720;
  line-height: 1.1;
}

.main-nav a::after {
  position: absolute;
  right: 0;
  bottom: 4px;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--red));
  border-radius: 999px;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 160ms ease;
  content: "";
}

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

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  color: var(--navy);
  font-size: 13px;
  font-weight: 720;
  white-space: nowrap;
}

.header-actions a {
  opacity: 0.82;
}

.header-actions a:hover,
.header-actions a:focus-visible {
  opacity: 1;
}

.header-actions button,
.menu-toggle {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(18, 49, 95, 0.14);
  border-radius: 999px;
  color: var(--navy);
  background: rgba(255, 255, 255, 0.76);
  cursor: pointer;
}

.header-actions button svg {
  width: 19px;
  height: 19px;
}

.menu-toggle {
  display: none;
  justify-self: end;
}

.header-divider {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, #04122e 0%, #0d3a7a 35%, #15498f 65%, #a8363d 100%);
  box-shadow: 0 2px 6px rgba(4, 18, 46, 0.28);
}

.hero {
  position: relative;
  min-height: 720px;
  padding-top: 88px;
  overflow: hidden;
  background: linear-gradient(180deg, #ffffff 0%, #f7fbff 100%);
}

.hero::after {
  position: absolute;
  inset: 86px 0 0;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.6) 0%, rgba(255, 255, 255, 0.84) 30%, rgba(255, 255, 255, 0.1) 58%, rgba(255, 255, 255, 0) 100%);
  pointer-events: none;
  content: "";
}

.hero-lineart {
  position: absolute;
  right: 0;
  bottom: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center bottom;
}
.hero .slick-dots li.slick-active{    background: var(--navy);opacity:1;}
.hero-inner {
  position: absolute;
  z-index: 1;
  width: min(var(--content-width), calc(100% - 80px));
  min-height: 360px;
  margin: 0 auto;
  top: 86px;
  left: calc((100vw - var(--content-width))/2);
}

.hero-copy {
  width: min(560px, 46vw);
  padding-top: 118px;
}

.kicker {
  margin: 0 0 18px;
  color: rgba(6, 29, 67, 0.78);
  font-size: 13px;
  font-weight: 820;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(48px, 5.2vw, 78px);
  line-height: 1.08;
  font-weight: 780;
}

.hero-slogan {
  margin: 26px 0 0;
  color: var(--navy);
  font-size: clamp(24px, 2.3vw, 34px);
  line-height: 1.24;
  font-weight: 760;
  text-transform: uppercase;
}

.hero p:last-of-type {
  max-width: 480px;
  margin: 24px 0 0;
  color: rgba(6, 29, 67, 0.76);
  font-size: 18px;
  line-height: 1.8;
}

.hero-actions {
  display: none;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}
.herob{
    overflow: hidden;
}
.heroimg{height:calc(100vh - 86px);}
.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 26px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 800;
}
.hero .slick-dots{bottom:20px;}
.primary-action {
  color: #ffffff;
  background: var(--navy);
  box-shadow: 0 14px 30px rgba(6, 29, 67, 0.16);
}

.secondary-action {
  color: var(--navy);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
}

.quick-access {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  width: min(var(--content-width), calc(100% - 80px));
  margin: -44px auto 0;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.quick-access a {
  position: relative;
  display: grid;
  gap: 7px;
  min-height: 112px;
  padding: 26px 28px 22px;
  border-right: 1px solid var(--line);
}

.quick-access a:last-child {
  border-right: 0;
}

.quick-access a::after {
  position: absolute;
  right: 24px;
  bottom: 24px;
  color: var(--navy);
  content: "->";
}

.quick-access span {
  color: var(--blue);
  font-size: 13px;
  font-weight: 820;
}

.quick-access .icon {
  width: 28px;
  height: 28px;
  color: var(--blue);
}

.quick-access strong {
  color: var(--navy);
  font-size: 18px;
}

.quick-access em {
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
  font-weight: 720;
}

.section {
  width: min(var(--content-width), calc(100% - 96px));
  margin: 0 auto;
  padding: 48px 0;
}

.section-head {
  display: flex;
  align-items: center;
  margin-bottom: 26px;
}

.section-head.with-link {
  justify-content: space-between;
  gap: 24px;
}

.section-head h2 {
  display: grid;
  gap: 6px;
  margin: 0;
  color: var(--navy);
  font-size: 34px;
  line-height: 1.16;
}

.section-head h2::after {
  width: 132px;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), rgba(31, 115, 214, 0.12));
  border-radius: 999px;
  content: "";
}

.section-head h2 span {
  font-weight: 820;
}

.section-head h2 em {
  order: -1;
  color: var(--cyan);
  font-size: 15px;
  font-style: normal;
  font-weight: 720;
  text-transform: none;
}

.section-head.with-link .more_btn a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 820;
}

.section-head.with-link .more_btn a::after {
  content: "->";
}

.section-head.compact {
  margin-bottom: 18px;
}

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

.section-head.compact h2 em {
  font-size: 13px;
}

.network-section {
  display: grid;
  gap: 0;
  width: 100%;
  padding-right: max(48px, calc((100vw - var(--content-width)) / 2));
  padding-left: max(48px, calc((100vw - var(--content-width)) / 2));
  background: #F5F5FA;
}

.network-map {
  position: relative;
  min-height: 480px;
  overflow: hidden;
  border-radius: 0;
  background: #F5F5FA;
}

.network-map > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center bottom;
  min-height: 480px;
}

.partner-logos {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: 20px 28px 24px;
  background: linear-gradient(180deg, transparent 0%, rgba(245,245,250,0.72) 40%, rgba(245,245,250,0.92) 80%);
  overflow: hidden;
}

.partner-track {
  display: flex;
  align-items: center;
  gap: 96px;
  animation: scroll-logos 18s linear infinite;
  width: max-content;
}

@keyframes scroll-logos {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.partner-logo {
  height: 58px;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
  opacity: 0.78;
  filter: grayscale(30%);
  transition: opacity 200ms ease, filter 200ms ease, transform 220ms ease;
}

.partner-logo:hover {
  opacity: 1;
  filter: none;
  transform: scale(1.08);
}

.map-node.germany::before {
  background: var(--blue);
}

.news-section {
  padding-top: 51px;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 26px;
}

.news-card {
  display: grid;
  align-content: start;
  gap: 14px;
  min-width: 0;
}

.news-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-sm);
  box-shadow: 0 14px 34px rgba(8, 35, 74, 0.08);
}

.news-card div {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
}

.news-card span {
  display: inline-flex;
  min-height: 26px;
  align-items: center;
  padding: 0 10px;
  border-radius: 999px;
  background: #eef5ff;
  color: var(--navy);
  font-weight: 720;
}

.news-card h3 {
  margin: 0;
  color: var(--navy);
  font-size: 22px;
  line-height: 1.45;
  font-weight: 820;
}

.activity-section {
  width: 100%;
  padding-right: max(48px, calc((100vw - var(--content-width)) / 2));
  padding-left: max(48px, calc((100vw - var(--content-width)) / 2));
  background: #F5F5FA;
}

.event-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.event-card {
  display: grid;
  gap: 18px;
  min-height: 292px;
  padding: 16px 16px 24px;
  background: #ffffff;
  border-radius: var(--radius);
}

.event-band {
  display: grid;
  align-content: center;
  gap: 22px;
  min-height: 156px;
  padding: 28px;
  border-radius: var(--radius-sm);
  color: var(--navy);
}

.event-band.teal {
  background: url(images/hdbg.png)no-repeat center/cover;
}
.event-band.teal {
    position: relative;
}

.event-band.teal::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(235, 241, 254,0.6);
    z-index: 1;
    display: none;
}

.event-band.teal.has-bg::before {
    display: block;
}

.event-band.teal > * {
    position: relative;
    z-index: 2;
}
.event-band.cyan {
  background: linear-gradient(135deg, #EFF3FF, #CBDCFC);
}

.event-band.blue {
  background: linear-gradient(135deg, #EFF3FF, #CBDCFC);
}

.event-band time {
  justify-self: start;
  width: fit-content;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 18px;
  line-height: 1;
  font-weight: 820;
}

.event-band.teal time {
  color: #648ED8;
  background: #E3EBF8;
}

.event-card:nth-child(2) .event-band time {
  color: #F19AA9;
  background: #FDE7EB;
}

.event-card:nth-child(3) .event-band  time {
  color: #EFB35F;
  background: #FDF0DD;
}

.event-band h3 {
  margin: 0;
  font-size: 22px;
  line-height: 1.55;
  font-weight: 820;
}

.event-card p {
  margin: 0 18px;
  color: #6770a2;
  font-size: 17px;
  line-height: 1.5;
}

.event-card strong {
  color: #5d6e9f;
}

.trio-section {
  display: grid;
  grid-template-columns: minmax(430px, 1.16fr) minmax(280px, 0.84fr) minmax(260px, 0.72fr);
  align-items: stretch;
  gap: 20px;
}

.trio-panel {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-auto-rows: 1fr;
  gap: 12px;
  flex: 1;
  min-height: 420px;
}

.stat-card {
  display: grid;
  align-content: center;
  gap: 10px;
  min-width: 0;
  padding: 22px;
  color: var(--navy);
  background: #F9F9FB;
  border: 1px solid rgba(31, 115, 214, 0.08);
  border-radius: var(--radius-sm);
}

.stat-card.wide {
  grid-column: span 2;
  color: var(--navy);
  background: linear-gradient(135deg, #EFF3FF, #CBDCFC);
}

.stat-card:nth-child(2) {
  background: #F9F9FB;
}

.stat-card:nth-child(4) {
  color: var(--navy);
  background: linear-gradient(135deg, #EFF3FF, #CBDCFC);
}

.stat-card strong {
  font-size: 40px;
  line-height: 1;
}

.stat-card span {
  color: inherit;
  font-size: 18px;
  font-weight: 750;
}

.video-card,
.report-card {
  display: grid;
  gap: 18px;
  flex: 1;
  min-height: 420px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 12px 32px rgba(8, 35, 74, 0.06);
}

.report-card {
  padding: 0;
  overflow: hidden;
}

.video-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: var(--navy);
}

.video-thumb video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-thumb button {
  position: absolute;
  top: 50%;
  left: 50%;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 999px;
  background: rgba(31, 115, 214, 0.86);
  transform: translate(-50%, -50%);
  cursor: pointer;
}

.video-thumb button span {
  width: 0;
  height: 0;
  margin-left: 4px;
  border-top: 9px solid transparent;
  border-bottom: 9px solid transparent;
  border-left: 14px solid #ffffff;
}

.video-card h3 {
  margin: 0;
  color: var(--navy);
  font-size: 22px;
}

.video-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.report-cover {
  display: grid;
  align-content: space-between;
  height: 100%;
  min-height: 480px;
  padding: 34px;
  background:
    linear-gradient(135deg, #EFF3FF, #CBDCFC),
    url("./assets/image21.png");
  background-position: center;
  background-size: cover;
}

.report-cover img {
  width: 216px;
  filter: none;
}

.report-cover strong {
  color: var(--navy);
  font-size: 38px;
  line-height: 1.4;
}

.report-cover span {
  color: var(--navy);
  font-size: 18px;
  font-weight: 850;
}

.enterprise-section {
  width: 100%;
  padding: 48px max(48px, calc((100vw - var(--content-width)) / 2));
}

.enterprise-section .section-head {
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto 30px;
}

.enterprise-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 22px;
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
}

.enterprise-card {
  display: grid;
  gap: 14px;
  align-content: start;
}

.enterprise-logo-box {
  display: grid;
  place-items: center;
  height: 160px;
  padding: 24px;
  background: #ffffff;
  border: 1px solid rgba(18, 49, 95, 0.08);
  border-radius: var(--radius-sm);
  transition: box-shadow 200ms ease, transform 200ms ease;
}

.enterprise-logo-box:hover {
  box-shadow: 0 12px 32px rgba(8, 35, 74, 0.10);
  transform: translateY(-3px);
}

.enterprise-logo-box img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.enterprise-card span {
  text-align: center;
  color: var(--navy);
  font-size: 15px;
  font-weight: 720;
}

.enterprise-card:first-child .enterprise-logo-box img,
.enterprise-card:nth-child(4) .enterprise-logo-box img {
  max-width: 70%;
  max-height: 70%;
}

.enterprise-empty {
  visibility: hidden;
}

.enterprise-logo-empty {
  background: transparent;
  border: none;
}

.site-footer {
  color: var(--navy);
  background: #F5F5FA;
}

.footer-contact {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(280px, 0.8fr) minmax(260px, 0.68fr);
  align-items: center;
  gap: 38px;
  width: min(var(--content-width), calc(100% - 64px));
  min-height: 248px;
  margin: 0 auto;
  padding: 42px 0;
}

.contact-copy h2 {
  margin: 0 0 22px;
  color: var(--navy);
  font-size: 28px;
  line-height: 1.1;
}

.contact-copy p {
  margin: 8px 0;
  color: rgba(6, 29, 67, 0.92);
  font-size: 16px;
  line-height: 1.5;
  font-weight: 680;
}

.footer-logo {
  justify-self: center;
  width: min(420px, 100%);
  filter: none;
}

.footer-icons {
  display: flex;
  justify-content: flex-end;
  gap: 20px;
}

.footer-icons a {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border: 1px solid rgba(6, 29, 67, 0.32);
  border-radius: 999px;
  color: var(--navy);
  position: relative;
}
.footer-icons a .linkico{
    position: absolute;
    width: 80px;
    height: 80px;
    bottom: calc(100% + 5px);
    opacity: 0;
    pointer-events: none;
}
.footer-icons a:has(.linkico):hover .linkico{opacity:1;pointer-events:all;}

.footer-icons svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.footer-bottom {
  width: min(var(--content-width), calc(100% - 64px));
  margin: 0 auto;
  padding: 24px 0;
  border-top: 1px solid rgba(6, 29, 67, 0.46);
}

.footer-bottom p {
  margin: 0;
  color: rgba(6, 29, 67, 0.88);
  font-size: 14px;
  font-weight: 720;
}

@media (max-width: 999px) {
.main-nav .menu .menu-item:has(.sub-menu) .menu-switch-arrow{display:block;}
.main-nav .menu .menu-item .sub-menu{position: relative;min-width: 100%;left: 0;transform: translateX(0%);height:0;opacity:0;}
  .enterprise-grid{
    grid-template-columns: repeat(4, minmax(0, 1fr));
}
  .site-header {
    grid-template-columns: auto auto auto;
    padding-right: 22px;
    padding-left: 22px;
  }

  .brand {
    min-width: 0;
  }

  .menu-toggle {
    display: grid;
  }

  .main-nav{
    display: none;
  }
 .main-nav.is-open{
    position: absolute;
    top: 100%;
    right: 18px;
    left: 18px;
    display:block;
}
  .main-nav.is-open .menu{

    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    padding: 12px;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }

  .main-nav.is-open a {
    min-height: 50px;
    padding: 0 14px;
  }

  .header-actions {
    justify-self: end;
  }

  .hero-copy {
    width: min(540px, 58vw);
  }

  .quick-access,
  .news-grid,
  .event-cards,
  .network-section,
  .trio-section,
  .footer-contact {
    grid-template-columns: 1fr;
  }

  .quick-access {
    margin-top: -24px;
  }

  .quick-access a {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .quick-access a:last-child {
    border-bottom: 0;
  }

  .footer-logo {
    justify-self: start;
  }

  .footer-icons {
    justify-content: flex-start;
  }
}

@media (max-width: 767px) {
  .enterprise-grid{
    grid-template-columns: repeat(3, minmax(0, 1fr));
}
  .site-header {
    min-height: 66px;
    grid-template-columns: 1fr auto;
    gap: 12px;
    padding: 9px 16px;
  }

  .tongji-logo {
    display: none;
  }

  .cdhk-logo {
    width: 240px;
  }

  .brand {
    gap: 6px;
  }

  .header-actions {
    display: none;
  }

  .main-nav.is-open .menu{
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 640px;
    padding-top: 66px;
  }

  .hero-lineart {
    width: 148vw;
    height: 72%;
    opacity: 0.78;
  }

  .hero-inner {
    width: calc(100% - 36px);
    min-height: 574px;
  }

  .hero-copy {
    width: 100%;
    padding-top: 58px;
  }

  .hero h1 {
    font-size: 46px;
  }

  .hero-slogan {
    font-size: 24px;
  }

  .hero p:last-of-type {
    font-size: 17px;
  }

  .quick-access,
  .section,
  .network-section,
  .news-section,
  .trio-section {
    width: calc(100% - 36px);
  }

  .section,
  .activity-section {
    padding-top: 62px;
    padding-bottom: 62px;
  }

  .activity-section {
    padding-right: 18px;
    padding-left: 18px;
  }

  .section-head.with-link {
    align-items: flex-start;
    flex-direction: column;
  }

  .section-head h2 {
    font-size: 30px;
  }

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

  .news-card h3 {
    font-size: 19px;
  }

  .partner-logo {
    height: 56px;
  }

  .event-band {
    padding: 24px;
  }

  .event-band time {
    font-size: 26px;
  }

  .stat-card.wide {
    grid-column: span 2;
  }

  .stats-grid {
    min-height: auto;
  }

  .video-card,
  .report-card,
  .report-cover {
    min-height: 0;
  }

  .footer-contact,
  .footer-bottom {
    width: calc(100% - 36px);
  }

  .footer-contact {
    gap: 28px;
    padding: 42px 0 34px;
  }

  .footer-icons {
    flex-wrap: wrap;
  }
}
@media (max-width: 520px) {
.enterprise-logo-box{    height: 100px;padding: 10px;}
  .enterprise-grid{
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
.enterprise-section {
    width: 100%;
    padding: 48px max(48px, calc((100vw - var(--content-width)) / 2));
}
}
/* ── 视频弹窗 ── */
.video-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.75);
  animation: video-fade-in 0.25s ease;
}

.video-modal {
  position: relative;
  width: min(90vw, 1000px);
  max-height: 90vh;
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
  animation: video-scale-in 0.3s ease;
}

.video-player {
  display: block;
  width: 100%;
  height: auto;
  max-height: 90vh;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #000;
}

.video-close {
  position: absolute;
  top: 12px;
  right: 16px;
  z-index: 10;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  font-size: 24px;
  line-height: 36px;
  text-align: center;
  cursor: pointer;
  transition: background 0.2s;
}

.video-close:hover {
  background: rgba(0, 0, 0, 0.8);
}

@keyframes video-fade-in {
  from { opacity: 0; }
}

@keyframes video-scale-in {
  from { opacity: 0; transform: scale(0.92); }
}