@font-face {
  font-family: "Mochiy";
  src: url("fonts/MochiyPopOne-Regular.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "Raleway";
  src: url("fonts/Raleway-Regular.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "Raleway";
  src: url("fonts/Raleway-Bold.ttf") format("truetype");
  font-weight: 700;
  font-display: swap;
}

:root {
  --red: #ef4774;
  --red-deep: #d92f61;
  --blush: #fff0f1;
  --rose: #f8a4af;
  --coral: #f26a4b;
  --orange: #f15a24;
  --plum: #202944;
  --ink: #242633;
  --paper: #fffafa;
  --blue: #ccecf1;
  --kv-pink: #feb2b6;
  --nav-height: 64px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Raleway", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 18px;
  line-height: 1.7;
}

html:lang(zh-CN) body {
  font-family: "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", Arial, sans-serif;
}

button,
a {
  font: inherit;
}

a {
  color: inherit;
}

[hidden] {
  display: none !important;
}

.site-nav {
  position: fixed;
  z-index: 1000;
  inset: 0 0 auto;
  height: var(--nav-height);
  display: grid;
  grid-template-columns: minmax(170px, 1fr) auto minmax(128px, 1fr);
  align-items: center;
  gap: 20px;
  padding: 0 28px;
  background: #20232d;
  color: #fff;
  box-shadow: 0 2px 0 rgba(239, 71, 116, 0.5);
}

.brand {
  justify-self: start;
  font-family: "Mochiy", "Raleway", sans-serif;
  font-size: 15px;
  text-decoration: none;
  white-space: nowrap;
}

.brand span {
  color: #ff8f9f;
}

.nav-links {
  display: flex;
  align-items: stretch;
  height: 100%;
}

.nav-links a {
  position: relative;
  display: grid;
  place-items: center;
  min-width: 86px;
  padding: 0 14px;
  color: #eee;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  text-transform: uppercase;
}

.nav-links a::after {
  content: "";
  position: absolute;
  right: 12px;
  bottom: 0;
  left: 12px;
  height: 4px;
  background: transparent;
}

.nav-links a:hover,
.nav-links a.active {
  color: #fff;
  background: #2e3140;
}

.nav-links a.active::after {
  background: var(--orange);
}

.language-switcher {
  justify-self: end;
  display: flex;
  gap: 4px;
}

.language-switcher button {
  width: 48px;
  min-height: 36px;
  padding: 0;
  border: 0;
  border-bottom: 3px solid transparent;
  background: transparent;
  color: #bbb;
  cursor: pointer;
}

.language-switcher button:hover,
.language-switcher button.active {
  border-bottom-color: var(--orange);
  color: #fff;
}

main {
  width: min(100%, 1080px);
  margin: var(--nav-height) auto 0;
  overflow: hidden;
  box-shadow: 0 0 36px rgba(32, 41, 68, 0.1);
}

.section {
  position: relative;
  min-height: 420px;
  padding: 132px 68px 104px;
}

.content {
  width: min(100%, 880px);
  margin: 0 auto;
}

.content.narrow {
  width: min(100%, 700px);
}

.center {
  text-align: center;
}

.section h1,
.section h2,
.section h3,
.section p {
  margin-top: 0;
}

.section h1,
.section h2 {
  font-family: "Mochiy", "Raleway", sans-serif;
  letter-spacing: 0;
}

.section h2 {
  margin-bottom: 32px;
  font-size: 38px;
  line-height: 1.35;
}

.section-kicker,
.eyebrow {
  margin-bottom: 12px;
  color: var(--orange);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
}

.lead {
  margin-bottom: 34px;
  font-size: 21px;
  line-height: 1.65;
}

.lead.dark {
  color: var(--plum);
}

.section-marker {
  position: absolute;
  z-index: 2;
  top: -74px;
  left: 50%;
  display: flex;
  width: 156px;
  height: 156px;
  transform: translateX(-50%);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
  color: var(--plum);
}

.section-marker .fa-stack {
  height: 72px;
  width: 72px;
  font-size: 36px;
  line-height: 72px;
}

.section-marker .fa-circle {
  color: rgba(255, 255, 255, 0.28);
}

.section-marker .fa-stack-1x {
  color: var(--plum);
}

.section-marker > span:last-child {
  margin-top: 2px;
  font-size: 11px;
  font-weight: 700;
}

.hero-section {
  padding: 0;
  background: var(--paper);
  color: var(--ink);
}

.hero-kv {
  position: relative;
  overflow: hidden;
  padding: 44px 32px 54px;
  background: var(--kv-pink);
}

.hero-image {
  display: block;
  width: min(100%, 760px);
  height: auto;
  margin: 32px auto 0;
  box-shadow: 0 14px 30px rgba(32, 41, 68, 0.14);
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.hero-image:hover {
  box-shadow: 0 24px 46px rgba(32, 41, 68, 0.25);
  transform: translateY(-8px) scale(1.012);
}

.hero-kv-meta {
  display: flex;
  align-items: center;
  color: var(--plum);
  flex-direction: column;
  line-height: 1.3;
  text-align: center;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.42);
}

.hero-kv-meta::before {
  width: 46px;
  height: 5px;
  margin-bottom: 13px;
  background: var(--orange);
  content: "";
}

.hero-kv-meta span {
  margin-bottom: 12px;
  color: var(--red-deep);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
}

.hero-kv-meta strong {
  margin-bottom: 8px;
  font-family: "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", Arial, sans-serif;
  font-size: 30px;
  font-weight: 600;
}

.hero-kv-meta time {
  font-family: "Mochiy", "Raleway", sans-serif;
  font-size: 25px;
  font-style: normal;
  font-weight: 700;
}

.hero-content {
  padding-top: 50px;
  padding-bottom: 52px;
}

.hero-summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  align-items: start;
}

.hero-section h1 {
  max-width: none;
  margin-bottom: 24px;
  color: var(--plum);
  font-size: 38px;
  line-height: 1.35;
}

.hero-section .eyebrow {
  display: inline-flex;
  margin-bottom: 16px;
  padding: 6px 12px;
  border-left: 4px solid var(--coral);
  background: var(--blush);
  color: var(--plum);
  font-size: 19px;
  line-height: 1.35;
}

.hero-copy-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 44px;
}

.hero-copy {
  max-width: none;
  margin: 0;
  color: #4d5060;
  font-size: 17px;
  line-height: 1.8;
}

.hero-copy > strong {
  color: var(--plum);
  font-weight: 700;
}

.hero-copy-lead,
.hero-contact {
  grid-column: 1 / -1;
}

.hero-copy-lead {
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(32, 41, 68, 0.14);
  color: var(--plum);
  font-size: 20px;
  line-height: 1.75;
}

.hero-contact {
  padding: 15px 18px;
  border-left: 4px solid var(--red);
  background: var(--blush);
  color: var(--plum);
}

.hero-contact a {
  color: var(--red-deep);
  font-weight: 700;
}

.map-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border: 2px solid transparent;
  border-radius: 5px;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  transition: transform 160ms ease, background-color 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-light {
  background: #fff;
  color: var(--red-deep);
}

.button-outline {
  border-color: #fff;
  color: #fff;
}

.button-dark {
  background: var(--plum);
  color: #fff;
}

.dates-section {
  padding: 118px 40px 86px;
  background: var(--blush);
  color: var(--plum);
}

.dates-section .content {
  width: min(100%, 1000px);
}

.dates-section .section-kicker {
  display: inline-flex;
  min-height: 34px;
  margin-bottom: 14px;
  padding: 5px 14px;
  align-items: center;
  border-radius: 3px;
  background: var(--orange);
  color: #fff;
  font-size: 16px;
}

.dates-section h2 {
  margin-bottom: 30px;
  font-size: 40px;
}

.date-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  text-align: left;
}

.date-list article {
  display: flex;
  min-height: 260px;
  padding: 26px 18px 22px;
  border-top: 5px solid var(--orange);
  background: rgba(255, 255, 255, 0.78);
  flex-direction: column;
}

.date-list article:last-child {
  border-bottom: 0;
}

.date-list h3 {
  margin-bottom: 14px;
  font-size: 19px;
  line-height: 1.4;
  white-space: nowrap;
}

.date-list p {
  margin-bottom: 0;
  font-size: 21px;
  line-height: 1.45;
  white-space: nowrap;
}

html:lang(en) .date-list h3 {
  font-size: 17px;
}

.proposal-link {
  display: inline-flex;
  min-height: 46px;
  margin-top: auto;
  align-items: center;
  justify-content: center;
  padding: 9px 20px;
  border: 2px solid var(--red-deep);
  border-radius: 5px;
  background: var(--red-deep);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.3;
  text-decoration: none;
}

.proposal-link:hover {
  background: transparent;
  color: var(--red-deep);
}

.partners-section {
  min-height: 0;
  padding-top: 108px;
  padding-bottom: 78px;
  background: var(--blush);
  color: var(--plum);
}

.partners-section .content.narrow {
  width: min(100%, 1000px);
}

.sponsor-panel {
  padding: 48px 60px 44px;
  border-radius: 8px;
  background-color: #fff7f8;
  background-image: url("img/sponsors-space-background-light.png");
  background-position: center 58%;
  background-size: cover;
  color: var(--plum);
  box-shadow: 0 16px 36px rgba(32, 41, 68, 0.18);
}

.partners-section .section-kicker {
  margin-bottom: 10px;
  color: #ff9a72;
  font-size: 16px;
}

.partners-section h2 {
  margin-bottom: 20px;
  color: var(--plum);
  font-size: 40px;
}

.partners-section .sponsor-copy {
  max-width: 880px;
  margin: 0 auto 26px;
  font-size: 20px;
  line-height: 1.7;
}

.partners-section .button-dark {
  min-height: 52px;
  min-width: 260px;
  background: var(--red-deep);
  box-shadow: 0 10px 24px rgba(217, 47, 97, 0.3);
  font-size: 18px;
}

.partners-section p.sponsor-note {
  max-width: 940px;
  margin: 28px auto 0;
  font-size: 16px;
  line-height: 1.75;
  text-align: left;
}

.attend-section {
  background: var(--plum);
  color: #fff;
}

.venue-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 34px 0;
  background: transparent;
}

.venue-facts div {
  display: flex;
  min-height: 138px;
  padding: 22px 18px;
  border-radius: 4px;
  background: #2b3554;
  flex-direction: column;
  justify-content: center;
}

.venue-facts strong {
  display: inline-flex;
  min-height: 34px;
  margin-bottom: 12px;
  padding: 5px 10px;
  align-self: flex-start;
  align-items: center;
  border-radius: 3px;
  background: var(--rose);
  color: var(--plum);
  font-family: "Mochiy", "Raleway", sans-serif;
  font-size: 15px;
  line-height: 1.35;
}

.venue-facts div:nth-child(2) strong {
  background: var(--blue);
}

.venue-facts div:nth-child(3) strong {
  background: #ffb486;
}

.venue-facts span {
  font-size: 15px;
  line-height: 1.55;
}

.travel-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
  margin-top: 56px;
}

.travel-grid article {
  min-height: 230px;
  padding: 28px;
  border: 1px solid rgba(255, 178, 182, 0.68);
  background: #2b3554;
}

.travel-grid h3 {
  margin-bottom: 12px;
  font-size: 21px;
}

.travel-grid p {
  margin-bottom: 0;
  font-size: 16px;
}

.travel-icon {
  display: block;
  margin-bottom: 18px;
  color: #ff8a63;
  font-size: 31px;
}

.entrance-note {
  margin-top: 28px;
  padding: 22px 26px;
  border-left: 5px solid var(--orange);
  background: rgba(255, 255, 255, 0.08);
}

.embedded-map-block {
  margin-top: 64px;
  text-align: center;
}

.embedded-map-block h3,
.event-video-block h3 {
  margin-bottom: 6px;
  font-family: "Mochiy", "Raleway", sans-serif;
  font-size: 25px;
}

.embedded-map-block > .lang-zh > p,
.embedded-map-block > .lang-en > p,
.event-video-block > .lang-zh > p,
.event-video-block > .lang-en > p {
  margin-bottom: 24px;
}

#amap-container {
  position: relative;
  width: 100%;
  height: 520px;
  overflow: hidden;
  border: 6px solid rgba(255, 178, 182, 0.82);
  background: #f9d7d8;
  color: var(--plum);
}

.map-fallback {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.themes-section {
  background: var(--rose);
  color: var(--plum);
}

.theme-groups {
  display: grid;
  gap: 38px;
}

.theme-group {
  padding: 0;
}

.theme-group h3 {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  margin-bottom: 0;
  align-items: center;
  border-bottom: 3px solid var(--plum);
  font-family: "Raleway", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 20px;
}

.theme-group h3 span {
  display: inline-flex;
  min-height: 46px;
  padding: 8px 14px;
  align-items: center;
  background: var(--plum);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.theme-group h3 b {
  font-weight: 600;
}

.theme-group h3 small {
  color: var(--red-deep);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.theme-group ol {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 18px;
  margin: 0;
  padding: 18px 0 0;
  list-style: none;
}

.theme-group li {
  position: relative;
  z-index: 0;
  min-height: 154px;
  padding: 18px 18px 16px;
  border: 1px solid rgba(32, 41, 68, 0.18);
  border-left: 4px solid var(--orange);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.58);
  box-shadow: 0 2px 0 rgba(32, 41, 68, 0.08);
  font-size: 16px;
  line-height: 1.55;
  white-space: nowrap;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease, border-color 180ms ease;
}

html:lang(en) .theme-group li {
  font-size: 15px;
}

.theme-group li:hover {
  z-index: 1;
  border-color: rgba(32, 41, 68, 0.34);
  border-left-color: var(--orange);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 12px 24px rgba(32, 41, 68, 0.18);
  transform: translateY(-6px) scale(1.025);
}

.theme-group li p {
  margin: 9px 0 0;
  color: #4f5264;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.6;
  white-space: normal;
}

.theme-group .topic-title {
  color: var(--red-deep);
  font-weight: 700;
}

.archive-section {
  background: var(--paper);
  color: var(--plum);
}

.archive-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 52px;
}

.archive-links a {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  padding: 8px 18px;
  border: 2px solid var(--plum);
  border-radius: 5px;
  font-weight: 700;
  text-decoration: none;
}

.archive-links a:hover {
  background: var(--plum);
  color: #fff;
}

.event-video-block {
  margin-bottom: 64px;
}

.video-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 6px solid var(--rose);
  background: #20232d;
}

.video-frame iframe,
.video-frame video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: #20232d;
  object-fit: contain;
}

.venue-map-marker {
  width: 38px;
  height: 44px;
  color: var(--orange);
  font-size: 42px;
  line-height: 42px;
  text-align: center;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.28);
}

html:lang(zh-CN) .section h1,
html:lang(zh-CN) .section h2,
html:lang(zh-CN) .section h3,
html:lang(zh-CN) .hero-meta,
html:lang(zh-CN) .venue-facts strong,
html:lang(zh-CN) .theme-group h3,
html:lang(zh-CN) .embedded-map-block h3,
html:lang(zh-CN) .event-video-block h3 {
  font-family: "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", Arial, sans-serif;
  font-weight: 600;
  line-height: 1.45;
}

html:lang(zh-CN) .hero-section h1 {
  font-size: 38px;
}

html:lang(zh-CN) .section h2 {
  font-size: 33px;
}

html:lang(zh-CN) .dates-section h2,
html:lang(zh-CN) .partners-section h2 {
  font-size: 38px;
}

html:lang(zh-CN) .venue-facts strong {
  font-size: 17px;
}

html:lang(zh-CN) strong,
html:lang(zh-CN) .nav-links a,
html:lang(zh-CN) .button,
html:lang(zh-CN) .proposal-link {
  font-weight: 600;
}

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

.social-grid figure {
  margin: 0;
  text-align: center;
}

.social-grid img {
  display: block;
  width: min(100%, 160px);
  aspect-ratio: 1;
  margin: 0 auto 10px;
  object-fit: cover;
  background: #fff;
  border: 6px solid #fff;
}

.social-grid figcaption {
  font-size: 15px;
  font-weight: 700;
}

footer {
  padding: 30px 24px;
  background: #20232d;
  color: #eee;
  text-align: center;
}

footer p {
  margin: 0;
}

footer a {
  color: #ff99aa;
}

@media (max-width: 960px) {
  .site-nav {
    grid-template-columns: 1fr auto;
    gap: 10px;
    padding: 0 14px;
  }

  .brand {
    display: none;
  }

  .nav-links {
    min-width: 0;
    overflow-x: auto;
  }

  .nav-links a {
    min-width: 74px;
    padding: 0 10px;
    font-size: 13px;
  }

  .section {
    padding-right: 42px;
    padding-left: 42px;
  }

  .hero-section {
    padding-right: 0;
    padding-left: 0;
  }

  .hero-content {
    width: min(calc(100% - 84px), 880px);
  }

  .sponsor-panel {
    padding-right: 42px;
    padding-left: 42px;
  }
}

@media (max-width: 680px) {
  :root {
    --nav-height: 58px;
  }

  body {
    font-size: 16px;
  }

  .site-nav {
    padding: 0 8px 0 0;
  }

  .nav-links a {
    min-width: 64px;
    padding: 0 8px;
    font-size: 12px;
  }

  .nav-links a:nth-child(3),
  .nav-links a:nth-child(6) {
    display: none;
  }

  .language-switcher button {
    width: 40px;
    font-size: 13px;
  }

  .section {
    min-height: 340px;
    padding: 112px 22px 76px;
  }

  .hero-section {
    padding: 0;
  }

  .hero-kv {
    padding: 26px 18px 30px;
  }

  .hero-kv-meta {
    position: static;
    padding: 0;
    align-items: center;
    background: transparent;
    color: var(--plum);
    flex-direction: column;
    gap: 0;
    justify-content: center;
    text-align: center;
  }

  .hero-kv-meta::before {
    display: none;
  }

  .hero-kv-meta span {
    margin-bottom: 8px;
    font-size: 12px;
  }

  .hero-kv-meta strong {
    font-family: "Raleway", "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 22px;
  }

  .hero-kv-meta time {
    font-family: "Raleway", "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 17px;
  }

  .hero-image {
    margin-top: 22px;
  }

  .hero-content {
    width: 100%;
    padding: 34px 22px 54px;
  }

  .hero-summary {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .hero-copy-list {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .hero-copy-lead,
  .hero-contact {
    grid-column: auto;
  }

  .hero-section .eyebrow {
    font-size: 16px;
  }

  .hero-section h1 {
    font-size: 30px;
  }

  html:lang(zh-CN) .hero-section h1 {
    font-size: 29px;
  }

  .hero-copy {
    font-size: 16px;
  }

  .section h2 {
    font-size: 29px;
  }

  html:lang(zh-CN) .section h2 {
    font-size: 28px;
  }

  .lead,
  .partners-section .sponsor-copy {
    font-size: 18px;
  }

  .section-marker {
    top: -58px;
    width: 122px;
    height: 122px;
  }

  .section-marker .fa-stack {
    height: 60px;
    width: 60px;
    font-size: 30px;
    line-height: 60px;
  }

  .date-list {
    grid-template-columns: 1fr;
  }

  .date-list article {
    min-height: 0;
  }

  .date-list h3,
  .date-list p {
    white-space: normal;
  }

  .date-list p {
    font-size: 20px;
  }

  .date-list .proposal-link {
    margin-top: 20px;
  }

  .partners-section {
    padding-top: 96px;
    padding-bottom: 64px;
  }

  .sponsor-panel {
    padding: 38px 20px 34px;
    background-position: center bottom;
  }

  .partners-section .button-dark {
    min-width: min(260px, 100%);
  }

  .partners-section p.sponsor-note {
    margin-top: 22px;
    font-size: 14px;
  }

  .venue-facts,
  .travel-grid,
  .social-grid {
    grid-template-columns: 1fr;
  }

  .venue-facts div,
  .travel-grid article {
    min-height: 0;
  }

  .theme-group {
    padding: 0;
  }

  .theme-group h3 {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 4px 10px;
  }

  .theme-group h3 span {
    grid-row: 1 / 3;
  }

  .theme-group h3 small {
    grid-column: 2;
  }

  .theme-group ol {
    grid-template-columns: 1fr;
  }

  .theme-group li {
    min-height: 0;
    white-space: normal;
  }

  #amap-container {
    height: 420px;
  }

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .button {
    transition: none;
  }

  .hero-image {
    transition: none;
  }

  .hero-image:hover {
    transform: none;
  }

  .theme-group li {
    transition: none;
  }

  .theme-group li:hover {
    transform: none;
  }
}