@font-face {
  font-family: "DingTalk JinBuTi";
  src: url("./assets/fonts/dingtalk-jinbuti.ttf") format("truetype");
  font-display: swap;
  font-style: normal;
  font-weight: 100 900;
}

:root {
  --blue: #0a20a6;
  --blue-dark: #061486;
  --yellow: #ffc62c;
  --ink: #11131a;
  --muted: #666970;
  --paper: #f4f4f2;
  --line: rgba(16, 29, 90, 0.25);
  --page-pad: clamp(22px, 4.25vw, 74px);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--paper);
  font-family: "DingTalk JinBuTi", "钉钉进步体", sans-serif;
  letter-spacing: 0;
}

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

body.is-video-archive-open {
  overflow: hidden;
}

button,
a {
  font: inherit;
}

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

button {
  color: inherit;
}

img {
  max-width: 100%;
}

section {
  scroll-margin-top: 104px;
}

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

.site-header {
  position: fixed;
  top: 20px;
  left: 50%;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  width: min(1080px, calc(100% - 40px));
  min-height: 64px;
  padding: 0 22px;
  align-items: center;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.58);
  border-radius: 16px;
  box-shadow: 0 12px 36px rgba(4, 19, 91, 0.14);
  backdrop-filter: blur(18px) saturate(145%);
  transform: translateX(-50%);
  -webkit-backdrop-filter: blur(18px) saturate(145%);
}

.brand {
  display: inline-flex;
  width: max-content;
  align-items: center;
  gap: 11px;
  font-weight: 800;
}

.brand__logo {
  display: block;
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.brand__name {
  font-size: 18px;
}

.main-navigation {
  grid-column: 2;
  display: flex;
  height: 64px;
  align-items: center;
  gap: clamp(18px, 2vw, 34px);
  font-size: 13px;
  font-weight: 650;
}

.main-navigation a {
  position: relative;
  display: grid;
  height: 100%;
  place-items: center;
}

.main-navigation a::after {
  position: absolute;
  right: 50%;
  bottom: 9px;
  left: 50%;
  height: 3px;
  background: var(--blue);
  content: "";
  transition: right 180ms ease, left 180ms ease;
}

.main-navigation a:hover::after,
.main-navigation a.is-active::after {
  right: 0;
  left: 0;
}

.main-navigation__contact {
  display: none !important;
}

.header-contact {
  justify-self: end;
  font-size: 13px;
  font-weight: 800;
}

.menu-button {
  display: none;
  width: 42px;
  height: 42px;
  padding: 9px;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.menu-button span {
  display: block;
  height: 2px;
  margin: 6px 0;
  background: var(--blue);
}

.hero {
  position: relative;
  height: min(65vw, 100svh);
  min-height: 560px;
  overflow: hidden;
  background: #2872a9;
}

.hero > img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  will-change: transform;
}

.hero::before {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, transparent 42%, rgba(3, 16, 89, 0.72) 100%);
  content: "";
  pointer-events: none;
}

.hero__content {
  position: absolute;
  right: var(--page-pad);
  bottom: clamp(58px, 7vw, 104px);
  left: var(--page-pad);
  z-index: 2;
  color: #fff;
  text-align: center;
  will-change: transform;
}

.hero__content h1 {
  margin: 0;
  color: var(--yellow);
  font: 900 clamp(56px, 7.2vw, 104px)/0.98 "DingTalk JinBuTi", "钉钉进步体", sans-serif;
  letter-spacing: 0;
}

.hero__role {
  margin: 22px 0 0;
  font-size: clamp(17px, 1.55vw, 22px);
  font-weight: 800;
}

.hero__intro {
  margin: 9px 0 0;
  font-size: 14px;
  opacity: 0.82;
}

.hero__scroll {
  position: absolute;
  right: var(--page-pad);
  bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 12px;
  font-weight: 700;
  z-index: 3;
}

.hero__scroll span:last-child {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 50%;
}

.section-shell {
  padding-right: var(--page-pad);
  padding-left: var(--page-pad);
}

.works {
  padding-top: clamp(44px, 5vw, 72px);
  padding-bottom: 96px;
}

.works > .section-heading {
  margin-right: clamp(10px, 1.5vw, 24px);
  margin-left: clamp(10px, 1.5vw, 24px);
}

.section-heading {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 18px;
}

.section-heading h2 {
  margin: 0;
  color: var(--blue);
  font-size: clamp(24px, 2.3vw, 36px);
  font-weight: 850;
  line-height: 1;
}

.section-heading > span {
  height: 1px;
  background: var(--line);
}

.section-lead {
  margin: 48px 0 30px;
  color: var(--blue);
  font-size: clamp(25px, 2.5vw, 39px);
  font-weight: 850;
  text-align: center;
}

.work-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(14px, 2.3vw, 34px);
}

.work-card {
  position: relative;
  display: block;
  min-width: 0;
  padding: 0;
  overflow: hidden;
  color: var(--blue);
  text-align: left;
  border: 0;
  border-radius: 8px;
  background: #eee;
  cursor: pointer;
  aspect-ratio: 0.56;
  isolation: isolate;
  transform-style: preserve-3d;
  will-change: transform;
}

.work-card > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.035);
  transition: transform 420ms ease;
}

.work-card::after {
  position: absolute;
  inset: 42% 0 0;
  z-index: 1;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0), rgba(247, 244, 228, 0.9));
  content: "";
}

.work-card--yellow {
  color: var(--yellow);
}

.work-card--yellow::after {
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0), rgba(5, 23, 99, 0.88));
}

.work-card:hover > img,
.work-card:focus-visible > img {
  transform: scale(1.08);
}

.work-card__content {
  position: absolute;
  right: 18px;
  bottom: 20px;
  left: 18px;
  z-index: 2;
  display: block;
}

.work-card__index,
.work-card small {
  display: block;
  font-size: 12px;
  font-weight: 750;
}

.work-card strong {
  display: block;
  margin: 6px 0 5px;
  font-size: clamp(22px, 2.35vw, 38px);
  font-weight: 900;
  line-height: 1.08;
}

.articles {
  padding-bottom: 96px;
}

.articles > .section-heading {
  margin-bottom: 34px;
}

.article-carousel {
  width: calc(100% + var(--page-pad) * 2);
  margin-left: calc(var(--page-pad) * -1);
  padding: 7px 0;
  overflow: hidden;
}

.article-carousel + .article-carousel {
  margin-top: 10px;
}

.article-track {
  display: flex;
  width: max-content;
  gap: 14px;
  will-change: transform;
}

.article-card {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  flex: 0 0 360px;
  height: 190px;
  overflow: hidden;
  color: #121a4d;
  border-radius: 8px;
}

.article-card__copy {
  position: relative;
  display: flex;
  min-width: 0;
  padding: 22px 18px 18px;
  flex-direction: column;
}

.article-card time {
  font-size: 12px;
  font-style: normal;
  font-weight: 750;
}

.article-card strong {
  display: -webkit-box;
  margin-top: 14px;
  overflow: hidden;
  font-size: 18px;
  font-weight: 850;
  line-height: 1.35;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.article-card i {
  display: grid;
  width: 30px;
  height: 30px;
  margin-top: auto;
  place-items: center;
  font-style: normal;
  border: 1px solid currentColor;
  border-radius: 50%;
}

.article-card__image {
  min-width: 0;
  margin: 12px 12px 12px 0;
  overflow: hidden;
  border-radius: 6px;
}

.article-card__image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 350ms ease;
}

.article-card:hover img {
  transform: scale(1.06);
}

.article-card--yellow { background: #ffd058; }
.article-card--blue { color: #fff; background: #1018a8; }
.article-card--sky { background: #a8def3; }
.article-card--rose { background: #eea6b2; }
.article-card--mint { background: #bbd887; }
.article-card--paper { background: #f2ddc0; }

.contact {
  display: grid;
  grid-template-columns: minmax(260px, 0.62fr) minmax(0, 1.38fr);
  gap: clamp(28px, 5vw, 80px);
  width: calc(100% - var(--page-pad) * 2);
  max-width: 1320px;
  min-height: 430px;
  margin: 0 auto 82px;
  padding: clamp(34px, 5vw, 72px);
  align-items: center;
  background: #fff;
  border-radius: 8px;
}

.contact__copy h2 {
  margin: 0;
  color: var(--blue);
  font-size: clamp(38px, 5vw, 70px);
  font-weight: 850;
  line-height: 1;
}

.contact-methods {
  display: flex;
  margin-top: 30px;
  align-items: center;
  gap: 12px;
}

.contact-method {
  display: flex;
  width: 74px;
  height: 82px;
  padding: 10px 8px 9px;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  gap: 7px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  border: 1px solid rgba(10, 32, 166, 0.18);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
  will-change: transform;
}

.contact-method:hover,
.contact-method:focus-visible {
  color: var(--blue-dark);
  background: var(--yellow);
  transform: translateY(-3px);
}

.contact-method__icon {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  font-size: 25px;
  font-weight: 850;
  line-height: 1;
}

.contact-method__icon--wechat {
  position: relative;
}

.contact-method__icon--wechat::before,
.contact-method__icon--wechat::after {
  position: absolute;
  width: 21px;
  height: 15px;
  border: 2px solid currentColor;
  border-radius: 50%;
  content: "";
}

.contact-method__icon--wechat::before {
  top: 5px;
  left: 2px;
}

.contact-method__icon--wechat::after {
  right: 1px;
  bottom: 4px;
  background: inherit;
}

.contact__visual {
  overflow: hidden;
  border-radius: 6px;
  aspect-ratio: 2.18;
}

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

.site-footer {
  display: flex;
  min-height: 220px;
  padding: 46px var(--page-pad);
  align-items: center;
  flex-direction: column;
  justify-content: center;
  gap: 16px;
  color: #fff;
  text-align: center;
  background: var(--blue-dark);
}

.footer-signature {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: #fff;
  will-change: transform;
}

.footer-logo-shell {
  display: grid;
  width: 54px;
  height: 54px;
  padding: 7px;
  place-items: center;
  background: #fff;
  border-radius: 50%;
}

.footer-logo-shell img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.contact-dialog {
  position: fixed;
  top: 50%;
  left: 50%;
  z-index: 61;
  width: min(460px, calc(100vw - 32px));
  max-height: calc(100svh - 32px);
  padding: clamp(28px, 5vw, 48px);
  overflow: auto;
  color: var(--ink);
  text-align: center;
  border-radius: 8px;
  background: var(--paper);
  box-shadow: 0 28px 90px rgba(4, 14, 72, 0.28);
  transform: translate(-50%, -50%);
}

.contact-dialog-backdrop {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(5, 12, 50, 0.72);
  backdrop-filter: blur(4px);
}

.contact-dialog[hidden],
.contact-dialog-backdrop[hidden],
.contact-dialog__panel[hidden] {
  display: none;
}

.contact-dialog__close {
  position: absolute;
  top: 14px;
  right: 14px;
  display: grid;
  width: 40px;
  height: 40px;
  padding: 0;
  place-items: center;
  color: var(--blue);
  font-size: 25px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
}

.contact-dialog__eyebrow {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.contact-dialog h2 {
  margin: 0;
  color: var(--blue);
  font-size: clamp(32px, 5vw, 46px);
}

.contact-dialog__panel {
  margin-top: 28px;
}

.contact-dialog__panel--wechat img {
  display: block;
  width: min(280px, 76vw);
  margin: 0 auto;
  border-radius: 6px;
}

.contact-dialog__panel--wechat p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.contact-dialog__value {
  margin: 0;
  color: var(--blue-dark);
  font-size: clamp(20px, 4vw, 28px);
  font-weight: 850;
  overflow-wrap: anywhere;
}

.contact-dialog__action {
  display: inline-flex;
  margin-top: 24px;
  padding: 12px 18px;
  align-items: center;
  gap: 18px;
  color: #111;
  font-weight: 800;
  border-radius: 999px;
  background: var(--yellow);
}

.experiment-dialog__description {
  max-width: 310px;
  margin: 20px auto 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.footer-signature strong {
  font-size: clamp(23px, 2.2vw, 32px);
  font-weight: 850;
}

.site-footer__slogan {
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(14px, 1.35vw, 18px);
  font-weight: 750;
}

.video-archive {
  --archive-blue: #082ca8;
  --archive-yellow: #ffe531;
  position: fixed;
  inset: 0;
  z-index: 60;
  display: flex;
  height: 100svh;
  min-height: 620px;
  padding: clamp(18px, 2.4vw, 38px) clamp(22px, 3.2vw, 54px) clamp(22px, 3vw, 44px);
  overflow: hidden;
  color: #fff;
  flex-direction: column;
  background: var(--archive-blue);
}

.video-archive[hidden] {
  display: none;
}

.video-archive__header {
  display: grid;
  min-height: 48px;
  padding-bottom: 12px;
  align-items: center;
  grid-template-columns: 1fr auto 1fr;
  border-bottom: 2px solid var(--archive-yellow);
}

.video-archive__header button,
.video-archive__header a {
  color: #fff;
}

.video-archive__back {
  display: inline-flex;
  width: max-content;
  padding: 8px 0;
  align-items: center;
  gap: 10px;
  font-weight: 760;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.video-archive__back span:first-child {
  color: var(--archive-yellow);
  font-size: 24px;
  line-height: 1;
}

.video-archive__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 800;
}

.video-archive__brand img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

.video-archive__header > p {
  justify-self: end;
  margin: 0;
  font-size: 13px;
  font-weight: 760;
}

.video-archive__layout {
  display: grid;
  min-height: 0;
  padding-top: clamp(22px, 3vw, 48px);
  flex: 1;
  grid-template-columns: minmax(0, 2.08fr) minmax(320px, 0.92fr);
  gap: clamp(34px, 4.4vw, 78px);
}

.video-stack-column {
  display: grid;
  min-width: 0;
  min-height: 0;
  grid-template-rows: minmax(0, 1fr) 62px;
}

.video-stack {
  position: relative;
  min-height: 0;
  isolation: isolate;
}

.video-stack__layer,
.video-player-card {
  position: absolute;
  border-radius: 3px;
}

.video-stack__layer {
  color: #fff;
  border: 2px solid currentColor;
}

.video-stack__layer span {
  position: absolute;
  right: 4px;
  bottom: 0;
  padding: 2px 5px;
  color: inherit;
  font-size: 13px;
  line-height: 1;
  background: var(--archive-blue);
}

.video-stack__layer--second {
  inset: 14px 17px 17px;
  z-index: 1;
}

.video-stack__layer--third {
  inset: 28px 0 0 34px;
  z-index: 0;
  color: var(--archive-yellow);
}

.video-player-card {
  inset: 0 34px 34px 0;
  z-index: 2;
  margin: 0;
  overflow: hidden;
  background: #061247;
  box-shadow: 0 18px 48px rgba(0, 9, 72, 0.25);
}

.video-player-card > video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.015);
  will-change: transform, opacity;
}

.video-player-card > video.is-portrait {
  object-fit: contain;
  background: #04177e;
  transform: none;
}

.video-player-card__shade {
  position: absolute;
  inset: 54% 0 0;
  background: linear-gradient(to bottom, transparent, rgba(0, 8, 38, 0.78));
  pointer-events: none;
}

.video-player-card__center-play {
  position: absolute;
  top: 50%;
  left: 50%;
  display: grid;
  width: 82px;
  height: 82px;
  padding: 0;
  color: #fff;
  font-size: 27px;
  place-items: center;
  border: 3px solid #fff;
  border-radius: 50%;
  background: rgba(5, 19, 75, 0.22);
  cursor: pointer;
  transform: translate(-50%, -50%);
  backdrop-filter: blur(3px);
}

.video-player-card__center-play span {
  margin-left: 4px;
}

.video-player-card__controls {
  position: absolute;
  right: 20px;
  bottom: 18px;
  left: 20px;
  display: grid;
  align-items: center;
  grid-template-columns: 30px auto minmax(80px, 1fr) 30px 34px;
  gap: 12px;
}

.video-player-card__controls button {
  width: 30px;
  height: 30px;
  padding: 0;
  color: #fff;
  font-size: 16px;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.video-player-card__time {
  font-size: 12px;
  white-space: nowrap;
}

.video-player-card__controls .video-player-card__progress {
  position: relative;
  width: 100%;
  height: 16px;
  padding: 6px 0;
  overflow: hidden;
  border: 0;
  background: rgba(255, 255, 255, 0.34);
  background-clip: content-box;
  cursor: pointer;
}

.video-player-card__progress i {
  display: block;
  width: 0;
  height: 100%;
  background: var(--archive-yellow);
  pointer-events: none;
}

.video-stack-nav {
  display: flex;
  padding-top: 12px;
  align-items: center;
  gap: 12px;
}

.video-stack-nav button {
  display: grid;
  width: 46px;
  height: 46px;
  padding: 0;
  color: var(--archive-blue);
  font-size: 24px;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: var(--archive-yellow);
  cursor: pointer;
}

.video-stack-nav > span {
  margin-left: 8px;
  font-size: 15px;
  font-weight: 760;
}

.video-archive__info {
  min-width: 0;
  padding-top: 2px;
  overflow: auto;
}

.video-archive__eyebrow {
  margin: 0 0 16px;
  font-size: 13px;
  font-weight: 760;
}

.video-categories {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.video-categories button {
  min-width: 0;
  height: 45px;
  padding: 0 12px;
  color: #fff;
  font-size: 14px;
  font-weight: 760;
  border: 1px solid rgba(255, 255, 255, 0.92);
  background: transparent;
  cursor: pointer;
}

.video-categories button.is-active {
  color: var(--archive-blue);
  border-color: var(--archive-yellow);
  background: var(--archive-yellow);
}

.video-archive__info > h1 {
  margin: clamp(34px, 5vh, 60px) 0 clamp(28px, 4vh, 44px);
  color: #fff;
  font-size: clamp(29px, 2.3vw, 39px);
  font-weight: 880;
  line-height: 1.12;
  overflow-wrap: anywhere;
  text-wrap: balance;
}

.video-meta-block {
  padding: 24px 4px 26px;
  border-top: 2px solid var(--archive-yellow);
}

.video-meta-block h2 {
  margin: 0 0 24px;
  color: #fff;
  font-size: 17px;
  font-weight: 760;
}

.video-meta-block h2 span {
  margin-right: 18px;
  color: var(--archive-yellow);
  font-size: 24px;
}

.video-meta-block dl,
.video-meta-block p {
  margin: 0;
}

.video-meta-block dl > div {
  display: grid;
  margin-top: 16px;
  grid-template-columns: minmax(76px, 0.72fr) 1fr;
}

.video-meta-block dt,
.video-meta-block dd,
.video-meta-block p {
  font-size: clamp(15px, 1.3vw, 19px);
  line-height: 1.45;
}

.video-meta-block dd {
  margin: 0;
}

.video-meta-block p + p {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(13px, 1.15vw, 17px);
}

.video-transition-card {
  position: fixed !important;
  z-index: 100;
  margin: 0 !important;
  pointer-events: none;
  transform-style: flat !important;
  will-change: top, left, width, height, border-radius, opacity;
}

.video-transition-card__wash {
  position: absolute;
  inset: 0;
  z-index: 5;
  background: #082ca8;
  opacity: 0;
}

.video-stack:fullscreen {
  padding: 32px;
  background: #082ca8;
}

.video-stack:fullscreen .video-player-card {
  inset: 32px;
}

.video-stack:fullscreen .video-stack__layer {
  display: none;
}

@media (max-width: 900px) {
  .site-header {
    top: 12px;
    grid-template-columns: 1fr auto;
    width: calc(100% - 24px);
    min-height: 56px;
    padding: 0 10px 0 14px;
    border-radius: 14px;
  }

  .brand__logo {
    width: 36px;
    height: 36px;
  }

  .brand__name {
    font-size: 16px;
  }

  .menu-button {
    z-index: 2;
    display: block;
  }

  .main-navigation {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    display: none;
    width: min(300px, calc(100vw - 24px));
    height: auto;
    padding: 12px;
    align-items: stretch;
    flex-direction: column;
    gap: 0;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.68);
    border-radius: 14px;
    box-shadow: 0 18px 42px rgba(9, 20, 70, 0.12);
    backdrop-filter: blur(18px) saturate(145%);
    -webkit-backdrop-filter: blur(18px) saturate(145%);
  }

  .main-navigation.is-open {
    display: flex;
  }

  .main-navigation a {
    display: flex;
    height: 48px;
    padding: 0 12px;
    align-items: center;
  }

  .main-navigation a::after {
    display: none;
  }

  .main-navigation__contact {
    display: flex !important;
  }

  .header-contact {
    display: none;
  }

  .hero {
    min-height: 580px;
  }

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

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

  .contact__copy p {
    max-width: 520px;
  }

  .video-archive {
    min-height: 0;
    padding: 16px 18px 28px;
    overflow-x: hidden;
    overflow-y: auto;
  }

  .video-archive__layout {
    display: grid;
    padding-top: 24px;
    flex: none;
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .video-stack-column {
    height: clamp(420px, 62svh, 600px);
  }

  .video-archive__info {
    padding-bottom: 36px;
    overflow: visible;
  }

  .video-archive__info > h1 {
    margin-top: 34px;
  }

}

@media (max-width: 560px) {
  :root {
    --page-pad: 20px;
  }

  .hero {
    height: 100svh;
    min-height: 500px;
  }

  .hero > img {
    object-position: 50% center;
  }

  .hero::before {
    background: linear-gradient(180deg, transparent 28%, rgba(3, 16, 89, 0.88) 100%);
  }

  .hero__content {
    position: absolute;
    right: 24px;
    bottom: 88px;
    left: 24px;
    z-index: 2;
    color: #fff;
    text-align: left;
  }

  .hero__content h1 {
    margin: 0;
    color: var(--yellow);
    font: 900 36px/1 "DingTalk JinBuTi", "钉钉进步体", sans-serif;
  }

  .hero__role {
    margin: 18px 0 0;
    font-size: 15px;
    line-height: 1.55;
  }

  .hero__intro {
    margin-top: 6px;
    font-size: 13px;
  }

  .hero__scroll span:first-child {
    display: none;
  }

  .hero__scroll {
    z-index: 3;
  }

  .section-lead {
    margin: 34px 0 22px;
    text-align: left;
  }

  .works {
    padding-top: 36px;
  }

  .works > .section-heading {
    margin-right: 4px;
    margin-left: 4px;
  }

  .work-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .work-card {
    aspect-ratio: 0.78;
  }

  .work-card strong {
    font-size: 34px;
  }

  .article-card {
    flex-basis: min(330px, calc(100vw - 48px));
    height: 176px;
  }

  .contact {
    width: calc(100% - 32px);
    min-height: 0;
    margin-bottom: 50px;
    padding: 30px 22px;
  }

  .contact__visual {
    aspect-ratio: 1.35;
  }

  .site-footer {
    min-height: 190px;
    gap: 14px;
    padding: 38px 20px;
  }

  .footer-logo-shell {
    width: 48px;
    height: 48px;
  }

  .footer-signature {
    gap: 11px;
  }

  .footer-signature strong {
    font-size: 22px;
  }

  .site-footer__slogan {
    max-width: 330px;
    line-height: 1.6;
  }

  .video-archive {
    padding: 12px 14px 26px;
  }

  .video-archive__header {
    grid-template-columns: auto 1fr;
    gap: 14px;
  }

  .video-archive__back span:last-child,
  .video-archive__header > p {
    display: none;
  }

  .video-archive__brand {
    justify-self: end;
    font-size: 15px;
  }

  .video-archive__brand img {
    width: 28px;
    height: 28px;
  }

  .video-stack-column {
    height: clamp(350px, 54svh, 470px);
    grid-template-rows: minmax(0, 1fr) 58px;
  }

  .video-player-card {
    inset: 0 20px 24px 0;
  }

  .video-stack__layer--second {
    inset: 10px 10px 12px;
  }

  .video-stack__layer--third {
    inset: 20px 0 0 20px;
  }

  .video-player-card__center-play {
    width: 62px;
    height: 62px;
    font-size: 21px;
    border-width: 2px;
  }

  .video-player-card__controls {
    right: 10px;
    bottom: 10px;
    left: 10px;
    grid-template-columns: 26px auto minmax(36px, 1fr) 26px 28px;
    gap: 7px;
  }

  .video-player-card__controls button {
    width: 26px;
    height: 26px;
  }

  .video-player-card__time {
    font-size: 10px;
  }

  .video-stack-nav button {
    width: 42px;
    height: 42px;
  }

  .video-categories {
    gap: 6px;
  }

  .video-categories button {
    height: 42px;
    padding: 0 7px;
    font-size: 12px;
  }

  .video-archive__info > h1 {
    margin: 30px 0 26px;
    font-size: 30px;
  }

  .video-meta-block {
    padding: 20px 2px 22px;
  }
}