:root {
  --ink: #07332f;
  --ink-soft: #4b706c;
  --surface: #f7fffc;
  --surface-strong: #ffffff;
  --aqua: #38d7d0;
  --aqua-soft: #e9fbf8;
  --green: #18b878;
  --green-deep: #08604a;
  --blue: #3d91e8;
  --gold: #d8b55d;
  --line: rgba(8, 96, 74, 0.16);
  --glass: rgba(255, 255, 255, 0.82);
  --shadow: 0 18px 54px rgba(20, 126, 111, 0.13);
  --radius: 8px;
  font-family: "Noto Serif SC", "Source Han Serif SC", Georgia, "Microsoft YaHei", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(115deg, rgba(56, 215, 208, 0.22), transparent 34%),
    linear-gradient(245deg, rgba(61, 145, 232, 0.13), transparent 38%),
    var(--surface);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(7, 33, 31, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(7, 33, 31, 0.04) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, black, transparent 70%);
  z-index: -1;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

.gateway {
  min-height: 100vh;
  color: var(--ink);
  background: #f7fffc;
}

.gateway::before {
  display: none;
}

.gateway-nav,
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 5vw, 64px);
  background: rgba(248, 255, 252, 0.88);
  color: var(--ink);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(8, 96, 74, 0.16);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  max-width: min(100%, 420px);
}

.brand-logo {
  height: 44px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
}

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

.gateway-links,
.site-nav,
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.site-nav a,
.header-actions a,
.gateway-links a {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
  border: 1px solid rgba(8, 96, 74, 0.18);
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink);
}

.header-actions .admin-link,
.gateway-links .admin-link {
  border-color: rgba(216, 181, 93, 0.7);
  color: #7c5b06;
  background: rgba(255, 249, 228, 0.82);
}

.gateway-hero {
  position: relative;
  min-height: 88vh;
  display: grid;
  align-items: end;
  padding: 120px clamp(20px, 6vw, 76px) 52px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(238, 255, 249, 0.9), rgba(238, 255, 249, 0.34) 46%, rgba(238, 255, 249, 0.62)),
    url("../img/hero-earth-waterdrop.png") center / cover no-repeat;
}

.gateway-hero::after,
.site-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 30%;
  background: linear-gradient(to top, rgba(247, 255, 252, 0.94), transparent);
  pointer-events: none;
}

.gateway-copy,
.site-hero-copy {
  position: relative;
  z-index: 1;
  max-width: 980px;
}

.gateway-copy h1,
.site-hero h1 {
  margin: 0;
  font-size: clamp(42px, 7vw, 92px);
  line-height: 1.02;
  letter-spacing: 0;
  text-wrap: balance;
  color: var(--ink);
}

.gateway-copy .english-name {
  margin: 14px 0 24px;
  color: rgba(7, 51, 47, 0.74);
  font-size: clamp(19px, 2.6vw, 32px);
}

.mission-quote {
  max-width: 880px;
  margin: 0;
  color: rgba(7, 51, 47, 0.84);
  font-size: clamp(15px, 1.6vw, 20px);
  line-height: 1.9;
}

.language-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 30px;
}

.language-card {
  min-width: 190px;
  min-height: 62px;
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 12px 18px;
  border: 1px solid rgba(8, 96, 74, 0.2);
  background: rgba(255, 255, 255, 0.74);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.18);
}

.language-card strong {
  display: block;
  font-size: 18px;
}

.language-card span:last-child {
  display: block;
  color: rgba(7, 51, 47, 0.62);
  font-size: 12px;
  margin-top: 2px;
}

.flag {
  width: 34px;
  height: 24px;
  flex: 0 0 auto;
  border: 1px solid rgba(255, 255, 255, 0.28);
  box-shadow: 0 5px 16px rgba(0, 0, 0, 0.24);
}

.flag-cn {
  background:
    radial-gradient(circle at 28% 32%, #ffe783 0 8%, transparent 9%),
    radial-gradient(circle at 48% 20%, #ffe783 0 3%, transparent 4%),
    radial-gradient(circle at 56% 36%, #ffe783 0 3%, transparent 4%),
    radial-gradient(circle at 55% 55%, #ffe783 0 3%, transparent 4%),
    #d61f2c;
}

.flag-us {
  background:
    linear-gradient(90deg, #274b88 0 42%, transparent 42%),
    repeating-linear-gradient(to bottom, #c3263d 0 7%, #fff 7% 14%);
}

.gateway-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  background: #effdf9;
  border-top: 1px solid rgba(56, 215, 208, 0.32);
}

.gateway-strip a {
  min-height: 94px;
  display: grid;
  align-content: center;
  gap: 7px;
  padding: 18px;
  border-right: 1px solid rgba(56, 215, 208, 0.22);
}

.gateway-strip span {
  color: rgba(8, 96, 74, 0.58);
  font-size: 12px;
}

.gateway-strip strong {
  color: var(--ink);
  font-size: 17px;
}

.gateway-video-section {
  padding: 82px clamp(20px, 6vw, 76px) 96px;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(223, 247, 244, 0.96), rgba(255, 255, 255, 0.9)),
    #f4fbf8;
}

.inline-admin-link {
  width: max-content;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  color: white;
  background: linear-gradient(135deg, var(--green-deep), var(--blue));
  border: 1px solid rgba(7, 83, 61, 0.35);
}

.site-header {
  background: rgba(246, 255, 252, 0.84);
  color: var(--ink);
  border-bottom-color: var(--line);
}

.site-header .brand-mark span {
  color: var(--ink-soft);
}

.site-header .site-nav a,
.site-header .header-actions a {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.56);
  color: var(--ink);
}

.site-hero {
  position: relative;
  min-height: 86vh;
  display: grid;
  align-items: end;
  padding: 126px clamp(20px, 6vw, 76px) 72px;
  color: var(--ink);
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(240, 255, 250, 0.91), rgba(240, 255, 250, 0.34) 52%, rgba(240, 255, 250, 0.66)),
    url("../img/hero-earth-waterdrop.png") center / cover no-repeat;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  margin: 0 0 20px;
  color: var(--green-deep);
  background: rgba(233, 251, 248, 0.82);
  border: 1px solid rgba(56, 215, 208, 0.45);
}

.site-hero p {
  max-width: 760px;
  margin: 22px 0 0;
  color: rgba(7, 51, 47, 0.82);
  font-size: clamp(16px, 1.8vw, 22px);
  line-height: 1.8;
}

.hero-quote-panel {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin-top: 30px;
  padding: 20px 22px;
  color: rgba(7, 51, 47, 0.8);
  border-left: 3px solid var(--aqua);
  background: rgba(255, 255, 255, 0.62);
  backdrop-filter: blur(16px);
  line-height: 1.8;
}

.section {
  padding: 92px clamp(20px, 6vw, 76px);
}

.section:nth-of-type(even) {
  background: rgba(255, 255, 255, 0.52);
}

.section-header {
  max-width: 840px;
  margin-bottom: 34px;
}

.section-header h2 {
  margin: 0 0 14px;
  font-size: clamp(30px, 4.6vw, 58px);
  line-height: 1.08;
  letter-spacing: 0;
}

.section-header p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 18px;
  line-height: 1.8;
}

.profile-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 34px;
  align-items: start;
}

.profile-copy {
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.95;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.metric-card,
.technology-card,
.patent-card,
.news-item,
.contact-panel,
.media-admin-card {
  border: 1px solid var(--line);
  background: var(--glass);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.metric-card {
  min-height: 142px;
  display: grid;
  align-content: center;
  padding: 22px;
}

.metric-card strong {
  color: var(--green-deep);
  font-size: 44px;
  line-height: 1;
}

.metric-card span {
  color: var(--ink-soft);
  line-height: 1.5;
  margin-top: 10px;
}

.technology-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.technology-card {
  position: relative;
  overflow: hidden;
  padding: 28px;
}

.technology-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: linear-gradient(90deg, var(--green), var(--aqua), var(--blue));
}

.tech-index {
  color: rgba(7, 83, 61, 0.26);
  font-size: 48px;
  font-weight: 800;
  line-height: 1;
}

.technology-card h3 {
  margin: 12px 0;
  font-size: 24px;
  line-height: 1.35;
}

.technology-card p {
  color: var(--ink-soft);
  line-height: 1.72;
}

.technology-card .stage {
  color: var(--green-deep);
  font-weight: 700;
}

.technology-card ul {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 20px 0 0;
  list-style: none;
}

.technology-card li {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.technology-card li b {
  color: var(--green-deep);
}

.technology-card li span {
  color: var(--ink-soft);
  line-height: 1.65;
}

.patent-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.patent-card {
  margin: 0;
  overflow: hidden;
}

.patent-card img {
  width: 100%;
  aspect-ratio: 3 / 4.05;
  object-fit: cover;
  object-position: top center;
  background: white;
}

.patent-card figcaption {
  min-height: 70px;
  padding: 14px 16px;
  color: var(--ink-soft);
  line-height: 1.5;
}

.news-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.video-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.video-card {
  display: grid;
  grid-template-columns: minmax(320px, 0.88fr) minmax(0, 1fr);
  min-height: 360px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.76);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.video-frame {
  position: relative;
  min-height: 320px;
  display: grid;
  place-items: center;
  background-size: cover;
  background-position: center;
  isolation: isolate;
}

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

.video-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(56, 215, 208, 0.22), transparent 44%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.16) 0 1px, transparent 1px 18px);
  z-index: -1;
}

.play-button {
  width: 78px;
  height: 78px;
  border: 1px solid rgba(255, 255, 255, 0.92);
  border-radius: 50%;
  color: #f4fffb;
  background: rgba(17, 168, 117, 0.74);
  box-shadow: 0 0 42px rgba(56, 215, 208, 0.42);
  cursor: pointer;
}

.video-copy {
  display: grid;
  align-content: center;
  gap: 14px;
  padding: clamp(24px, 4vw, 46px);
}

.video-copy span {
  color: var(--green-deep);
  font-weight: 700;
}

.video-copy h3 {
  margin: 0;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.12;
}

.video-copy p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.75;
}

.news-item {
  padding: 24px;
}

.news-item time {
  color: var(--green);
  font-weight: 700;
}

.news-item h3 {
  margin: 12px 0;
  font-size: 24px;
}

.news-item p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.8;
}

.contact-panel {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding: 26px;
}

.contact-panel div {
  display: grid;
  gap: 8px;
  min-height: 84px;
  align-content: center;
  padding: 14px;
  background: rgba(255, 255, 255, 0.54);
}

.contact-panel span {
  color: var(--ink-soft);
}

.contact-panel strong {
  overflow-wrap: anywhere;
  font-size: 22px;
}

.contact-panel p {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.75;
}

.site-footer {
  padding: 34px clamp(20px, 6vw, 76px);
  color: rgba(7, 51, 47, 0.72);
  background: #e9fbf8;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

.login-body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at top left, rgba(56, 215, 208, 0.24), transparent 32%),
    linear-gradient(135deg, rgba(232, 251, 246, 0.96), rgba(255, 255, 255, 0.92)),
    #f5fffb;
}

.login-body::before {
  display: none;
}

.login-shell {
  width: min(100%, 480px);
}

.login-card {
  display: grid;
  gap: 22px;
  padding: clamp(24px, 4vw, 34px);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 22px 60px rgba(7, 53, 48, 0.12);
  backdrop-filter: blur(18px);
}

.login-copy h1 {
  margin: 0;
  font-size: clamp(30px, 5vw, 42px);
}

.login-copy p {
  margin: 10px 0 0;
  color: var(--ink-soft);
  line-height: 1.75;
}

.login-error {
  margin: 0;
  padding: 10px 12px;
  color: #8c2034;
  border: 1px solid rgba(140, 32, 52, 0.18);
  background: rgba(255, 240, 243, 0.94);
}

.admin-body {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  background: #f5fffb;
}

.admin-body::before {
  display: none;
}

.admin-sidebar {
  min-height: 100vh;
  padding: 26px 20px;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(56, 215, 208, 0.24), transparent 44%),
    #e8fbf6;
  border-right: 1px solid var(--line);
}

.admin-sidebar .brand-mark {
  margin-bottom: 34px;
}

.admin-menu {
  display: grid;
  gap: 8px;
}

.admin-menu a {
  min-height: 42px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  color: rgba(7, 51, 47, 0.76);
  border: 1px solid transparent;
}

.admin-menu a.is-active,
.admin-menu a:hover {
  color: var(--green-deep);
  background: rgba(255, 255, 255, 0.72);
  border-color: rgba(56, 215, 208, 0.38);
}

.admin-main {
  padding: 30px clamp(18px, 4vw, 48px) 54px;
  overflow: hidden;
}

.admin-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 26px;
}

.admin-topbar h1 {
  margin: 0;
  font-size: clamp(28px, 4vw, 46px);
}

.admin-topbar p {
  margin: 8px 0 0;
  color: var(--ink-soft);
}

.admin-link-button,
.primary-button,
.ghost-button,
.icon-action,
.status-pill {
  min-height: 38px;
  border: 1px solid var(--line);
  background: white;
  color: var(--ink);
  cursor: pointer;
}

.admin-link-button,
.primary-button,
.ghost-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
}

.primary-button {
  color: white;
  border-color: rgba(8, 96, 74, 0.34);
  background: linear-gradient(135deg, #11a875, #30acd6);
}

.ghost-button {
  background: rgba(255, 255, 255, 0.55);
}

.admin-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.admin-stats div,
.admin-panel {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 18px 50px rgba(7, 53, 48, 0.1);
}

.admin-stats div {
  min-height: 112px;
  display: grid;
  align-content: center;
  padding: 18px;
}

.admin-stats span {
  color: var(--ink-soft);
}

.admin-stats strong {
  margin-top: 8px;
  color: var(--green-deep);
  font-size: 38px;
  line-height: 1;
}

.admin-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(320px, 0.7fr);
  gap: 18px;
  align-items: start;
}

.admin-panel {
  padding: 20px;
}

.admin-panel h2 {
  margin: 0 0 16px;
  font-size: 22px;
}

.admin-panel h3 {
  margin: 0;
  font-size: 18px;
}

.admin-form-grid,
.admin-two-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.form-row-wide {
  grid-column: 1 / -1;
}

.admin-split {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(0, 1.1fr);
  gap: 18px;
}

.admin-list-panel {
  display: grid;
  gap: 14px;
  align-content: start;
}

.admin-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.admin-list {
  display: grid;
  gap: 10px;
}

.admin-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.76);
}

.admin-list-item strong,
.admin-list-item span {
  display: block;
}

.admin-list-item span {
  margin-top: 4px;
  color: var(--ink-soft);
  font-size: 13px;
}

.admin-list-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.table-wrap {
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
}

.admin-table th,
.admin-table td {
  padding: 12px 10px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}

.admin-table th {
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 700;
}

.admin-table td strong,
.admin-table td span {
  display: block;
}

.admin-table td span {
  color: var(--ink-soft);
  font-size: 13px;
  margin-top: 4px;
}

.sort-input {
  width: 56px;
  height: 34px;
  padding: 0 8px;
  border: 1px solid var(--line);
  background: #f8fffc;
}

.status-pill {
  min-width: 64px;
  padding: 0 10px;
}

.status-pill.is-on {
  color: var(--green-deep);
  background: var(--aqua-soft);
  border-color: rgba(16, 164, 106, 0.28);
}

.status-pill.is-off {
  color: #7b5360;
  background: #fff3f3;
}

.row-actions {
  white-space: nowrap;
}

.icon-action {
  margin-right: 6px;
  padding: 0 8px;
}

.content-form {
  display: grid;
  gap: 13px;
}

.form-row {
  display: grid;
  gap: 7px;
}

.form-row label,
.toggle-row {
  color: var(--ink-soft);
  font-size: 14px;
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: #f8fffc;
  min-height: 40px;
  padding: 9px 10px;
  color: var(--ink);
}

.form-row textarea {
  min-height: 120px;
  resize: vertical;
}

.toggle-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.form-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.upload-manager-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 18px;
}

.upload-panel {
  display: grid;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
}

.upload-panel h3 {
  margin: 0;
  font-size: 18px;
}

.upload-dropzone {
  min-height: 116px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 8px;
  padding: 16px;
  text-align: center;
  color: var(--green-deep);
  border: 1px dashed rgba(8, 96, 74, 0.34);
  background:
    linear-gradient(135deg, rgba(233, 251, 248, 0.92), rgba(255, 255, 255, 0.78));
  cursor: pointer;
}

.upload-dropzone input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.upload-dropzone span {
  font-weight: 800;
}

.upload-dropzone small {
  max-width: 320px;
  color: var(--ink-soft);
  line-height: 1.55;
}

.upload-preview {
  min-height: 96px;
  display: grid;
  place-items: center;
  gap: 8px;
  padding: 12px;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  background: rgba(248, 255, 252, 0.82);
}

.upload-preview img,
.upload-preview video,
.admin-video-frame video {
  width: 100%;
  max-height: 260px;
  object-fit: cover;
  background: #e9fbf8;
}

.upload-preview span {
  overflow-wrap: anywhere;
  font-size: 13px;
}

.media-preview {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.media-admin-list .admin-list-item {
  align-items: start;
}

.media-admin-card {
  overflow: hidden;
  box-shadow: none;
}

.media-admin-card img,
.video-placeholder {
  width: 100%;
  aspect-ratio: 1 / 1.18;
  object-fit: cover;
  background: #dceee9;
}

.video-placeholder {
  display: grid;
  place-items: center;
  color: var(--green-deep);
  font-weight: 800;
  border-bottom: 1px solid var(--line);
}

.media-admin-card strong,
.media-admin-card span {
  display: block;
  padding: 9px 10px 0;
  font-size: 13px;
  line-height: 1.45;
}

.media-admin-card span {
  padding-top: 4px;
  padding-bottom: 10px;
  color: var(--ink-soft);
}

.video-admin-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.8fr) minmax(0, 1fr);
  gap: 18px;
}

.video-admin-preview {
  border: 1px solid var(--line);
  background: rgba(248, 255, 252, 0.72);
  overflow: hidden;
}

.admin-video-frame {
  min-height: 230px;
  background:
    linear-gradient(90deg, rgba(232, 255, 248, 0.58), rgba(38, 181, 193, 0.16)),
    url("../img/hero-earth-waterdrop.png") center / cover no-repeat;
}

.admin-video-frame video {
  height: 100%;
  max-height: none;
}

.video-admin-preview strong,
.video-admin-preview span {
  display: block;
  padding: 12px 14px 0;
}

.video-admin-preview span {
  padding-top: 4px;
  padding-bottom: 14px;
  color: var(--ink-soft);
}

.admin-lower-grid {
  margin-top: 18px;
}

.compact-list {
  display: grid;
  gap: 10px;
  margin-bottom: 16px;
}

.compact-list article {
  display: grid;
  gap: 5px;
  padding: 13px;
  border: 1px solid var(--line);
  background: rgba(248, 255, 252, 0.72);
}

.compact-list time,
.compact-list span {
  color: var(--ink-soft);
  font-size: 13px;
}

.admin-toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 40;
  transform: translateY(18px);
  opacity: 0;
  pointer-events: none;
  padding: 13px 16px;
  color: white;
  background: #06362f;
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.22);
  transition: 180ms ease;
}

.admin-toast.is-visible {
  transform: translateY(0);
  opacity: 1;
}

.reveal {
  animation: riseIn 520ms ease both;
}

@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1040px) {
  .site-header {
    position: sticky;
  }

  .technology-grid,
  .profile-layout,
  .admin-grid,
  .video-card,
  .video-admin-layout,
  .admin-form-grid,
  .admin-two-column,
  .admin-split {
    grid-template-columns: 1fr;
  }

  .admin-body {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    min-height: auto;
  }

  .admin-menu {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .gateway-nav,
  .site-header,
  .admin-topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .gateway-hero,
  .site-hero {
    min-height: 82vh;
    padding-top: 146px;
  }

  .gateway-strip,
  .patent-gallery,
  .news-list,
  .contact-panel,
  .admin-stats,
  .media-preview,
  .upload-manager-grid {
    grid-template-columns: 1fr;
  }

  .metric-grid {
    grid-template-columns: 1fr;
  }

  .technology-card {
    padding: 22px;
  }

  .technology-card li {
    grid-template-columns: 1fr;
  }

  .site-footer {
    flex-direction: column;
  }

  .admin-menu {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .language-card,
  .gateway-links a,
  .site-nav a,
  .header-actions a {
    width: 100%;
  }

  .site-nav,
  .header-actions,
  .gateway-links {
    width: 100%;
  }

  .brand-logo {
    height: 38px;
  }

  .section {
    padding-top: 66px;
    padding-bottom: 66px;
  }
}