:root {
  --text: #f4f9ff;
  --text-strong: #ffffff;
  --muted: rgba(235, 244, 255, 0.82);
  --line: rgba(255, 255, 255, 0.2);
  --glass: linear-gradient(135deg, rgba(7, 26, 43, 0.09) 0%, rgba(13, 49, 73, 0.06) 52%, rgba(23, 92, 133, 0.04) 100%);
  --glass-soft: rgba(255, 255, 255, 0.08);
  --shadow-lg: 0 12px 28px rgba(5, 20, 34, 0.1);
  --shadow-md: 0 20px 40px rgba(7, 21, 36, 0.24);
  --hero-card: linear-gradient(145deg, rgba(8, 28, 46, 0.28) 0%, rgba(17, 74, 111, 0.2) 52%, rgba(255, 255, 255, 0.06) 100%);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  overflow-x: hidden;
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: #79bdf0;
}

a:focus-visible,
.language-switch:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.92);
  outline-offset: 4px;
}

.page {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  isolation: isolate;
  padding-bottom: 34px;
}

.page::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background: url("background.jpg") center center / cover no-repeat;
  transform: scale(1.04);
}

.page::after {
  content: none;
}

.header {
  position: relative;
  z-index: 20;
  width: min(1380px, calc(100% - 48px));
  margin: 28px auto 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  padding: 22px 28px 20px;
  border-radius: 30px;
  background: var(--glass);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(10px) saturate(125%);
  -webkit-backdrop-filter: blur(10px) saturate(125%);
}

.header::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.04), transparent 28%, transparent 72%, rgba(255, 255, 255, 0.02));
  pointer-events: none;
}

.brand {
  display: flex;
  align-items: center;
  color: inherit;
  text-decoration: none;
  min-width: 0;
  width: clamp(200px, 22vw, 276px);
  max-width: 100%;
  flex: 0 1 auto;
  animation: rise-in 0.9s ease-out both;
}

.brand-image {
  width: 100%;
  height: auto;
  display: block;
  filter: drop-shadow(0 10px 24px rgba(0, 0, 0, 0.24));
}

.nav-group {
  display: flex;
  align-items: center;
  gap: 24px;
  animation: rise-in 1s 0.15s ease-out both;
}

.menu {
  display: flex;
  align-self: center;
  align-items: center;
  gap: clamp(18px, 2vw, 34px);
  flex-wrap: wrap;
  justify-content: flex-end;
  padding-top: 0;
}

.menu-item {
  position: relative;
  display: flex;
  align-items: center;
}

.menu-item::after {
  content: "";
  position: absolute;
  top: 100%;
  left: -18px;
  right: -18px;
  height: 28px;
}

.menu-link {
  position: relative;
  color: var(--text-strong);
  text-decoration: none;
  font-size: clamp(15px, 1.1vw, 18px);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-shadow: 0 10px 20px rgba(0, 0, 0, 0.22);
  transition: transform 0.25s ease, opacity 0.25s ease, color 0.25s ease;
  padding: 8px 0;
}

.menu-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.92), rgba(166, 220, 255, 0.58));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.25s ease;
}

.menu-link:hover,
.menu-link:focus-visible,
.menu-item:hover > .menu-link,
.menu-item:focus-within > .menu-link,
.menu-item.is-open > .menu-link {
  opacity: 1;
  transform: translateY(-1px);
}

.menu-link:hover::after,
.menu-link:focus-visible::after,
.menu-item:hover > .menu-link::after,
.menu-item:focus-within > .menu-link::after,
.menu-item.is-open > .menu-link::after {
  transform: scaleX(1);
}

.submenu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  min-width: 178px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 6px);
  z-index: 40;
  border-radius: 22px;
  background: linear-gradient(160deg, rgba(8, 25, 42, 0.92) 0%, rgba(17, 55, 81, 0.76) 100%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: opacity 0.22s ease, transform 0.22s ease;
}

html[lang="zh-CN"] .menu-item .submenu {
  width: max-content;
  min-width: 157px;
  max-width: calc(100vw - 24px);
  padding: 14px 0;
}

html[lang="zh-CN"] .menu-item .submenu a {
  display: block;
  width: 100%;
}

.submenu::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -14px;
  height: 16px;
}

.menu-item:hover .submenu,
.menu-item:focus-within .submenu,
.menu-item.is-open .submenu,
.language-switch:hover .submenu,
.language-switch:focus-within .submenu,
.language-switch.is-open .submenu,
.submenu:hover,
.submenu:focus-within {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.submenu a {
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.3;
  padding: 10px 14px;
  border-radius: 14px;
  text-align: center;
  white-space: nowrap;
  background: transparent;
  transition: background-color 0.2s ease, transform 0.2s ease, color 0.2s ease;
}

.submenu a::after {
  content: none;
}

.submenu a:hover,
.submenu a:focus-visible {
  transform: translateX(4px);
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

.language-switch {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
  text-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
  padding: 6px 12px 6px 10px;
  white-space: nowrap;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.015);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.025);
}

.language-switch::after {
  content: "";
  position: absolute;
  top: 100%;
  left: -10px;
  right: -10px;
  height: 18px;
}

.language-switch .submenu {
  top: calc(100% + 12px);
  width: 157px;
  min-width: 157px;
  max-width: calc(100vw - 24px);
  padding: 14px;
}

.language-switch .submenu::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -12px;
  height: 14px;
}

.language-switch .submenu a {
  display: block;
  width: 100%;
  position: relative;
  z-index: 1;
  text-align: left;
}

.language-switch .submenu a[aria-current="true"] {
  transform: translateX(4px);
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
}

.globe-badge {
  position: relative;
  width: 42px;
  flex: 0 0 auto;
  margin: 0;
}

.language-switch img {
  width: 100%;
  height: auto;
  display: block;
  filter: drop-shadow(0 12px 30px rgba(0, 0, 0, 0.28));
}

.globe-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(8px, 0.64vw, 10px);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #ffffff;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.55);
  pointer-events: none;
}

.language-copy {
  display: flex;
  align-items: center;
  gap: 0;
  font-size: clamp(10px, 0.8vw, 12px);
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1;
  color: var(--muted);
  margin-right: 2px;
}

.mobile-menu-toggle {
  appearance: none;
  display: none;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-strong);
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 16px 30px rgba(5, 20, 34, 0.18);
  text-shadow: 0 10px 20px rgba(0, 0, 0, 0.22);
}

.mobile-menu-toggle-icon {
  display: grid;
  gap: 4px;
  width: 18px;
}

.mobile-menu-toggle-icon span {
  display: block;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: transform 0.22s ease, opacity 0.22s ease;
}

.nav-group.is-mobile-menu-open .mobile-menu-toggle-icon span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-group.is-mobile-menu-open .mobile-menu-toggle-icon span:nth-child(2) {
  opacity: 0;
}

.nav-group.is-mobile-menu-open .mobile-menu-toggle-icon span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.hero {
  position: relative;
  flex: 1;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: clamp(56px, 10vh, 96px) 24px clamp(72px, 13vh, 120px);
}

.record-info {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 0 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px 18px;
  text-align: center;
  font-size: clamp(12px, 0.86vw, 14px);
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1.5;
  color: rgba(235, 244, 255, 0.88);
  text-shadow: 0 8px 22px rgba(0, 0, 0, 0.18);
}

.record-item {
  display: inline-flex;
  align-items: center;
}

.record-item-icp {
  gap: 0;
}

.record-item-police {
  gap: 8px;
  white-space: nowrap;
}

.record-police-icon {
  display: block;
  width: 18px;
  height: 18px;
  object-fit: contain;
  flex: none;
}

.record-link,
.record-link:visited {
  color: inherit;
  text-decoration: none;
  transition:
    color 180ms ease,
    opacity 180ms ease;
}

.record-link:hover,
.record-link:focus-visible {
  color: rgba(255, 255, 255, 0.98);
}

.record-link:focus-visible {
  outline: 1px solid rgba(255, 255, 255, 0.72);
  outline-offset: 3px;
  border-radius: 2px;
}

.tagline {
  position: relative;
  margin: 0;
  padding: 0;
  animation: fade-up 1.2s 0.4s ease-out both;
  z-index: 1;
}

.tagline-image {
  position: relative;
  z-index: 1;
  display: block;
  width: min(84vw, 382px);
  height: auto;
  filter: drop-shadow(0 18px 32px rgba(0, 0, 0, 0.26));
  user-select: none;
  -webkit-user-drag: none;
  animation: gentle-float 6s ease-in-out infinite;
}

html:not([lang="zh-CN"]) .tagline-image {
  width: min(88vw, 485px);
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(-16px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes gentle-float {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-8px);
  }
}

@media (max-width: 1080px) {
  .header {
    flex-direction: column;
    align-items: stretch;
  }

  .nav-group {
    justify-content: space-between;
  }

  .menu {
    gap: 18px 24px;
  }
}

@media (max-width: 960px) {
  body.has-mobile-menu-open {
    overflow: hidden;
  }

  .header {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }

  .nav-group {
    position: relative;
    margin-left: auto;
    flex: 0 0 auto;
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
  }

  .mobile-menu-toggle {
    display: inline-flex;
  }

  .menu {
    position: absolute;
    top: calc(100% + 12px);
    left: auto;
    right: 0;
    z-index: 50;
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    width: min(328px, calc(100vw - 24px));
    max-width: calc(100vw - 24px);
    max-height: min(70vh, 560px);
    padding: 16px;
    overflow: auto;
    border-radius: 26px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    background: linear-gradient(160deg, rgba(8, 25, 42, 0.94) 0%, rgba(17, 55, 81, 0.84) 100%);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    visibility: hidden;
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s ease;
  }

  .nav-group.is-mobile-menu-open .menu {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
    visibility: visible;
  }

  .menu-item {
    display: block;
  }

  .menu-item::after {
    content: none;
  }

  .menu-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 14px 16px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.08);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
    font-size: 15px;
  }

  .menu-link::after {
    content: "+";
    position: static;
    width: auto;
    height: auto;
    background: none;
    color: rgba(255, 255, 255, 0.9);
    font-size: 20px;
    line-height: 1;
    transform: none;
  }

  .menu-link:hover::after,
  .menu-link:focus-visible::after,
  .menu-item:hover > .menu-link::after,
  .menu-item:focus-within > .menu-link::after,
  .menu-item.is-open > .menu-link::after {
    transform: none;
  }

  .menu-item.is-open > .menu-link::after {
    content: "-";
  }

  .menu .submenu,
  .menu-item.is-open .submenu,
  .menu-item:hover .submenu,
  .menu-item:focus-within .submenu,
  .menu-item .submenu:hover,
  .menu-item .submenu:focus-within {
    position: static;
    top: auto;
    left: auto;
    right: auto;
    min-width: 0;
    height: 0;
    margin: 0;
    padding: 0 8px;
    gap: 6px;
    overflow: hidden;
    border: 0;
    background: transparent;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-4px);
    transition: opacity 0.16s ease, transform 0.16s ease;
  }

  .menu .submenu::before {
    content: none;
  }

  .menu-item.is-open .submenu {
    position: static;
    top: auto;
    left: auto;
    right: auto;
    height: auto;
    transform: translateY(0);
    padding: 8px 8px 4px;
    opacity: 1;
    pointer-events: auto;
  }

  .menu .submenu a {
    text-align: left;
    white-space: normal;
    background: rgba(255, 255, 255, 0.08);
  }

  html[lang="zh-CN"] .menu .menu-item .submenu {
    width: auto;
    min-width: 0;
    max-width: none;
    padding: 0 8px;
  }

  html[lang="zh-CN"] .menu .menu-item.is-open .submenu {
    padding: 8px 8px 4px;
  }

  .language-switch {
    min-height: 46px;
    align-self: center;
  }

  .language-switch .submenu {
    left: auto;
    right: 0;
    transform: translateY(8px);
  }

  .language-switch:hover .submenu,
  .language-switch:focus-within .submenu,
  .language-switch.is-open .submenu,
  .language-switch .submenu:hover,
  .language-switch .submenu:focus-within {
    transform: translateY(0);
  }
}

@media (max-width: 760px) {
  .header {
    width: calc(100% - 24px);
    margin-top: 12px;
    justify-content: space-between;
    padding: 14px;
    gap: 10px;
    border-radius: 24px;
  }

  .brand {
    width: clamp(150px, 42vw, 188px);
  }

  .brand-image {
    width: 100%;
  }

  .nav-group {
    flex: 0 0 auto;
    flex-direction: row;
    align-items: center;
    gap: 8px;
  }

  .menu {
    justify-content: flex-start;
    gap: 14px 18px;
  }

  .menu-link {
    font-size: 14px;
  }

  .submenu {
    min-width: 152px;
    padding: 12px;
  }

  html[lang="zh-CN"] .menu-item .submenu {
    min-width: 134px;
    padding: 12px 0;
  }

  .language-switch .submenu {
    width: 134px;
    min-width: 134px;
  }

  .submenu a {
    font-size: 13px;
    padding: 9px 12px;
  }

  .language-switch {
    min-height: 42px;
    align-self: center;
    padding: 5px 8px;
  }

  .mobile-menu-toggle {
    min-height: 42px;
    padding: 0 12px;
    font-size: 12px;
  }

  .mobile-menu-toggle-icon {
    width: 16px;
  }

  .globe-badge {
    width: 34px;
  }

  .language-copy {
    display: none;
  }

  .hero {
    padding: 52px 16px 92px;
  }

  .tagline {
    padding: 0;
  }

  .tagline-image {
    width: min(82vw, 318px);
  }

  html:not([lang="zh-CN"]) .tagline-image {
    width: min(90vw, 404px);
  }

  .record-info {
    padding: 0 16px;
    font-size: 11px;
    letter-spacing: 0.06em;
    gap: 8px 14px;
  }

  .record-item-police {
    gap: 6px;
  }

  .record-police-icon {
    width: 16px;
    height: 16px;
  }
}

@media (max-width: 420px) {
  .header {
    width: calc(100% - 16px);
    padding: 12px 10px;
    gap: 6px;
  }

  .brand {
    width: clamp(132px, 40vw, 164px);
  }

  .nav-group {
    width: auto;
    min-width: auto;
    gap: 6px;
    margin-right: 6px;
  }

  .language-switch {
    min-height: 40px;
    position: static;
    padding: 4px 6px;
  }

  .globe-badge {
    width: 30px;
  }

  .mobile-menu-toggle {
    min-height: 40px;
    min-width: 40px;
    position: static;
    padding: 0 10px;
    gap: 0;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 10px 20px rgba(5, 20, 34, 0.16);
  }

  .menu {
    top: calc(100% + 10px);
    width: min(300px, calc(100vw - 16px));
    max-width: calc(100vw - 16px);
  }

  .mobile-menu-toggle-text {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0s !important;
    scroll-behavior: auto !important;
  }
}