*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --jb-deepest: #0a1035;
  --jb-deep: #123a6b;
  --jb-mid: #1e3a8a;
  --jb-gold: #f5b642;
  --jb-gold-light: #ffd166;
  --jb-violet: #7b2cbf;
  --jb-rose: #ff4d6d;
  --jb-pearl: #f8f9fa;
  --jb-mist: #e2e8f0;
  --jb-ink: #111827;
  --jb-sub: #4b5563;

  --jb-grad: linear-gradient(120deg, #7b2cbf 0%, #ff4d6d 100%);
  --jb-grad-gold: linear-gradient(120deg, #f5b642 0%, #ff8c42 100%);
  --jb-grad-soft: linear-gradient(150deg, rgba(123,44,191,.32), rgba(255,77,109,.22));

  --jb-font-display: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --jb-font-body: "Noto Serif SC", "Source Han Serif SC", "Songti SC", Georgia, serif;
  --jb-font-num: "DIN Alternate", "DIN", "Bahnschrift", "Segoe UI", monospace;

  --jb-container: 1200px;
  --jb-container-wide: 1440px;
  --jb-container-narrow: 880px;

  --jb-ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --jb-duration: 0.45s;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  font-family: var(--jb-font-body);
  font-size: 16px;
  line-height: 1.75;
  color: rgba(248, 249, 250, 0.82);
  background:
    radial-gradient(ellipse 80% 45% at 82% -10%, rgba(123, 44, 191, 0.28), transparent 62%),
    radial-gradient(ellipse 60% 40% at 8% 18%, rgba(18, 58, 107, 0.5), transparent 68%),
    var(--jb-deepest);
  background-attachment: fixed;
}

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

ul, ol {
  list-style: none;
}

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

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

::selection {
  background: var(--jb-gold);
  color: var(--jb-ink);
}

:focus-visible {
  outline: 2px solid var(--jb-gold);
  outline-offset: 3px;
  border-radius: 4px;
}

h1, h2, h3 {
  font-family: var(--jb-font-display);
  font-weight: 900;
  line-height: 1.15;
  color: var(--jb-pearl);
}

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

.container, .container-wide, .container-narrow {
  width: min(100% - 48px, var(--jb-container));
  margin-inline: auto;
}

.container-wide {
  width: min(100% - 48px, var(--jb-container-wide));
}

.container-narrow {
  width: min(100% - 48px, var(--jb-container-narrow));
}

.section {
  padding-block: clamp(60px, 10vw, 120px);
}

.section--tight {
  padding-block: 48px;
}

.section--tint {
  background: var(--jb-deep);
}

.section--light {
  background: var(--jb-pearl);
  color: var(--jb-ink);
}

.section--light h1,
.section--light h2,
.section--light h3 {
  color: var(--jb-ink);
}

.section--grad {
  background: var(--jb-grad);
}

.eyebrow {
  display: inline-block;
  font-family: var(--jb-font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--jb-gold);
  margin-bottom: 12px;
}

.title-xl {
  font-size: clamp(40px, 7vw, 72px);
  letter-spacing: -0.02em;
  line-height: 1.06;
}

.title-lg {
  font-size: clamp(28px, 4.5vw, 48px);
}

.title-md {
  font-size: clamp(20px, 3vw, 28px);
}

.prose {
  max-width: 70ch;
  color: rgba(248, 249, 250, 0.78);
  font-size: 16px;
  line-height: 1.9;
}

.prose p + p {
  margin-top: 1em;
}

.prose h1, .prose h2, .prose h3 {
  margin-top: 1.4em;
  margin-bottom: 0.5em;
}

.prose strong {
  color: var(--jb-pearl);
}

.prose a {
  color: var(--jb-gold);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: rgba(245, 182, 66, 0.4);
  transition: text-decoration-color 0.25s;
}

.prose a:hover {
  text-decoration-color: var(--jb-gold);
}

.prose ul {
  list-style: disc;
  padding-left: 1.2em;
}

.prose ol {
  list-style: decimal;
  padding-left: 1.2em;
}

.prose blockquote {
  margin: 24px 0;
  padding: 16px 24px;
  border-left: 3px solid var(--jb-gold);
  background: rgba(248, 249, 250, 0.04);
  font-style: italic;
}

.section--light .prose {
  color: var(--jb-sub);
}

.section--light .prose strong {
  color: var(--jb-ink);
}

.section--light .prose a {
  color: var(--jb-mid);
  text-decoration-color: rgba(18, 58, 107, 0.4);
}

.skip-link {
  position: fixed;
  top: -120px;
  left: 24px;
  z-index: 300;
  background: var(--jb-gold);
  color: var(--jb-ink);
  padding: 12px 20px;
  font-family: var(--jb-font-display);
  font-weight: 700;
  font-size: 14px;
  border-radius: 0 0 12px 12px;
  transition: top 0.3s var(--jb-ease-out);
}

.skip-link:focus {
  top: 0;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--jb-violet), var(--jb-rose), var(--jb-gold));
  z-index: 200;
  pointer-events: none;
  transition: width 0.08s linear;
}

.nav-scrim {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: none;
  background: rgba(4, 6, 24, 0.55);
  backdrop-filter: blur(3px);
}

.nav-scrim:not([hidden]) {
  display: block;
}

.nav-scrim[hidden] {
  display: none !important;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 16, 53, 0.94);
  border-bottom: 1px solid rgba(248, 249, 250, 0.08);
}

.site-header::after {
  content: "";
  display: block;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(245, 182, 66, 0.7), rgba(255, 77, 109, 0.6), transparent);
  opacity: 0.65;
}

.header-ribbon {
  border-bottom: 1px solid rgba(248, 249, 250, 0.06);
  font-family: var(--jb-font-display);
  font-size: 12px;
  letter-spacing: 0.08em;
  background: rgba(4, 7, 25, 0.35);
}

.header-ribbon-inner {
  max-width: var(--jb-container);
  margin-inline: auto;
  padding: 6px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-intro {
  color: rgba(248, 249, 250, 0.6);
}

.header-status {
  color: var(--jb-gold);
  display: flex;
  align-items: center;
  gap: 6px;
}

.header-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--jb-gold);
  box-shadow: 0 0 8px rgba(245, 182, 66, 0.9);
}

.header-lang {
  margin-left: auto;
  color: rgba(248, 249, 250, 0.75);
  border: 1px solid rgba(248, 249, 250, 0.18);
  padding: 2px 10px;
  border-radius: 999px;
  line-height: 1.6;
  transition: border-color 0.25s, color 0.25s;
}

.header-lang:hover {
  border-color: var(--jb-gold);
  color: var(--jb-gold);
}

.header-lang-code {
  font-family: var(--jb-font-num);
  font-size: 11px;
  margin-left: 4px;
  opacity: 0.8;
}

.header-main-inner {
  max-width: var(--jb-container);
  margin-inline: auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  font-family: var(--jb-font-display);
  font-weight: 900;
  font-size: 18px;
  color: var(--jb-ink);
  background: var(--jb-grad-gold);
  clip-path: polygon(0 0, 100% 0, 100% 62%, 50% 100%, 0 62%);
}

.brand-type {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-name-cn {
  font-family: var(--jb-font-display);
  font-size: 18px;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--jb-pearl);
}

.brand-edition {
  font-family: var(--jb-font-num);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--jb-gold);
  margin-top: 3px;
}

.primary-nav {
  flex: 1;
  display: flex;
  justify-content: flex-end;
}

.primary-nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.primary-nav-header,
.primary-nav-close {
  display: none;
}

.primary-nav-link {
  display: inline-block;
  padding: 10px 16px;
  font-family: var(--jb-font-display);
  font-size: 14px;
  font-weight: 600;
  color: rgba(248, 249, 250, 0.72);
  border-radius: 999px;
  transition: color 0.25s, background 0.25s, box-shadow 0.25s;
}

.primary-nav-link:hover {
  color: var(--jb-gold);
  background: rgba(245, 182, 66, 0.08);
}

.primary-nav-link[aria-current="page"] {
  color: var(--jb-gold);
  background: rgba(245, 182, 66, 0.12);
}

.primary-nav-cta {
  background: var(--jb-grad);
  color: #fff;
  box-shadow: 0 6px 20px rgba(123, 44, 191, 0.35);
}

.primary-nav-cta:hover {
  color: #fff;
  background: linear-gradient(120deg, #8a38d6, #ff5f7e);
  box-shadow: 0 8px 28px rgba(255, 77, 109, 0.4);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid rgba(248, 249, 250, 0.2);
  align-items: center;
  justify-content: center;
  transition: border-color 0.25s, background 0.25s;
}

.nav-toggle:hover {
  border-color: var(--jb-gold);
  background: rgba(245, 182, 66, 0.08);
}

.nav-toggle-bars {
  display: grid;
  gap: 5px;
  width: 18px;
}

.nav-toggle-bars span {
  height: 2px;
  background: var(--jb-pearl);
  transition: transform 0.3s var(--jb-ease-out), opacity 0.3s;
}

.btn {
  display: inline-block;
  padding: 13px 28px;
  font-family: var(--jb-font-display);
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  letter-spacing: 0.04em;
  border-radius: 999px;
  text-align: center;
  transition: transform 0.3s var(--jb-ease-out), box-shadow 0.3s, background 0.3s, color 0.3s, border-color 0.3s;
}

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

.btn-gold {
  background: var(--jb-gold);
  color: var(--jb-ink);
  box-shadow: 0 8px 24px rgba(245, 182, 66, 0.35);
}

.btn-gold:hover {
  box-shadow: 0 12px 32px rgba(245, 182, 66, 0.45);
}

.btn-ghost {
  border: 1px solid rgba(248, 249, 250, 0.35);
  color: var(--jb-pearl);
}

.btn-ghost:hover {
  border-color: var(--jb-gold);
  color: var(--jb-gold);
}

.btn-grad {
  background: var(--jb-grad);
  color: #fff;
  box-shadow: 0 8px 24px rgba(123, 44, 191, 0.35);
}

.btn-grad:hover {
  box-shadow: 0 12px 32px rgba(255, 77, 109, 0.4);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: rgba(248, 249, 250, 0.55);
  padding: 16px 0;
}

.breadcrumbs a {
  color: inherit;
  transition: color 0.25s;
}

.breadcrumbs a:hover {
  color: var(--jb-gold);
}

.breadcrumbs [aria-current="page"] {
  color: var(--jb-gold);
}

.card {
  background: rgba(248, 249, 250, 0.05);
  border: 1px solid rgba(248, 249, 250, 0.12);
  padding: 24px;
  border-radius: 16px;
}

.card--light {
  background: var(--jb-pearl);
  color: var(--jb-ink);
  border-radius: 16px;
  padding: 32px;
}

.card--light .prose {
  color: var(--jb-sub);
}

.card--light .prose strong {
  color: var(--jb-ink);
}

.chamfer-card {
  border: 1px solid transparent;
  background:
    linear-gradient(var(--jb-deep), var(--jb-deep)) padding-box,
    linear-gradient(120deg, rgba(245, 182, 66, 0.55), rgba(123, 44, 191, 0.55), rgba(255, 77, 109, 0.4)) border-box;
  border-radius: 16px;
  padding: 32px;
}

.figure {
  position: relative;
  overflow: hidden;
  background: var(--jb-deep);
  border-radius: 12px;
}

.figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.figure--16x9 {
  aspect-ratio: 16 / 9;
}

.figure--4x3 {
  aspect-ratio: 4 / 3;
}

.figure--tall {
  aspect-ratio: 3 / 4;
}

.figure--wide {
  aspect-ratio: 21 / 9;
}

.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 180px;
  font-family: var(--jb-font-display);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: rgba(248, 249, 250, 0.35);
  background: linear-gradient(135deg, var(--jb-deep) 0%, var(--jb-mid) 100%);
}

.figcaption {
  font-size: 13px;
  color: rgba(248, 249, 250, 0.55);
  text-align: center;
  margin-top: 8px;
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 24px;
}

.metric {
  font-family: var(--jb-font-num);
  font-weight: 700;
  font-size: clamp(36px, 5vw, 52px);
  line-height: 1;
  color: var(--jb-pearl);
  letter-spacing: -0.01em;
}

.metric--gold {
  color: var(--jb-gold);
}

.divider-grad {
  height: 2px;
  border: none;
  background: var(--jb-grad);
}

.ridge {
  height: 20px;
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
  background: linear-gradient(135deg, var(--jb-violet), var(--jb-rose), var(--jb-gold));
  transform: scaleX(1.02);
  opacity: 0.85;
  mask-image: linear-gradient(to right, transparent, black 18%, black 82%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 18%, black 82%, transparent);
  pointer-events: none;
}

.tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 999px;
  font-family: var(--jb-font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  background: rgba(123, 44, 191, 0.18);
  color: #c4b5fd;
  border: 1px solid rgba(123, 44, 191, 0.3);
}

.tag--gold {
  background: rgba(245, 182, 66, 0.14);
  color: var(--jb-gold);
  border-color: rgba(245, 182, 66, 0.3);
}

.note-vertical {
  writing-mode: vertical-rl;
  font-family: var(--jb-font-display);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: rgba(248, 249, 250, 0.5);
  border-left: 1px solid rgba(245, 182, 66, 0.5);
  padding-left: 12px;
  text-transform: uppercase;
}

.tabs {
  width: 100%;
}

.tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  border-bottom: 1px solid rgba(248, 249, 250, 0.15);
  margin-bottom: 24px;
}

.tab {
  padding: 12px 24px;
  font-family: var(--jb-font-display);
  font-size: 14px;
  font-weight: 600;
  color: rgba(248, 249, 250, 0.6);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.25s, border-color 0.25s;
}

.tab:hover {
  color: var(--jb-pearl);
}

.tab[aria-selected="true"] {
  color: var(--jb-gold);
  border-bottom-color: var(--jb-gold);
}

.tabpanel[hidden] {
  display: none;
}

.accordion {
  border-top: 1px solid rgba(248, 249, 250, 0.1);
}

.accordion-item {
  border-bottom: 1px solid rgba(248, 249, 250, 0.1);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 0;
  font-family: var(--jb-font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--jb-pearl);
  text-align: left;
}

.accordion-trigger::after {
  content: "+";
  font-size: 20px;
  color: var(--jb-gold);
  transition: transform 0.3s var(--jb-ease-out);
}

.accordion-item[data-open] .accordion-trigger::after {
  transform: rotate(45deg);
}

html.has-js .accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s var(--jb-ease-out);
}

html.has-js .accordion-item[data-open] .accordion-panel {
  max-height: 1000px;
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-link {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  font-family: var(--jb-font-display);
  font-size: 14px;
  color: rgba(248, 249, 250, 0.65);
  border: 1px solid rgba(248, 249, 250, 0.12);
  transition: background 0.25s, color 0.25s, border-color 0.25s;
}

.page-link:hover {
  border-color: var(--jb-gold);
  color: var(--jb-gold);
}

.page-link[aria-current="page"] {
  background: var(--jb-gold);
  color: var(--jb-ink);
  border-color: transparent;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

th,
td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(248, 249, 250, 0.12);
  text-align: left;
}

th {
  font-family: var(--jb-font-display);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--jb-gold);
}

td {
  color: rgba(248, 249, 250, 0.78);
}

.field {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.label {
  font-family: var(--jb-font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--jb-pearl);
}

.input,
.textarea,
.select {
  background: rgba(248, 249, 250, 0.06);
  border: 1px solid rgba(248, 249, 250, 0.18);
  border-radius: 12px;
  padding: 12px 16px;
  color: var(--jb-pearl);
  font: inherit;
  transition: border-color 0.2s;
}

.input:focus,
.textarea:focus,
.select:focus {
  outline: none;
  border-color: var(--jb-gold);
}

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

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--jb-gold);
  color: var(--jb-ink);
  font-size: 20px;
  box-shadow: 0 8px 24px rgba(245, 182, 66, 0.4);
  z-index: 50;
  display: grid;
  place-items: center;
  transition: transform 0.3s, opacity 0.3s, box-shadow 0.3s;
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(245, 182, 66, 0.5);
}

.back-to-top[hidden] {
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
}

html.has-js [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--jb-ease-out), transform 0.7s var(--jb-ease-out);
}

html.has-js [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

.site-footer {
  position: relative;
  background: #070d29;
  color: rgba(248, 249, 250, 0.75);
  border-top: 1px solid rgba(245, 182, 66, 0.35);
  font-family: var(--jb-font-body);
  margin-top: 80px;
}

.site-footer .ridge {
  position: absolute;
  top: -15px;
  left: 0;
  right: 0;
}

.footer-top {
  padding: 64px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.3fr;
  gap: 40px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.footer-brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  font-family: var(--jb-font-display);
  font-weight: 900;
  font-size: 16px;
  color: var(--jb-ink);
  background: var(--jb-grad-gold);
  clip-path: polygon(0 0, 100% 0, 100% 62%, 50% 100%, 0 62%);
}

.footer-brand-name {
  font-family: var(--jb-font-display);
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 0.06em;
  color: var(--jb-pearl);
}

.footer-trust {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(248, 249, 250, 0.55);
  max-width: 320px;
  margin-bottom: 20px;
}

.footer-contact {
  font-style: normal;
  display: grid;
  gap: 6px;
  font-size: 14px;
  color: rgba(248, 249, 250, 0.6);
}

.footer-heading {
  font-family: var(--jb-font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--jb-gold);
  margin-bottom: 18px;
}

.footer-links {
  display: grid;
  gap: 8px;
}

.footer-links a {
  color: rgba(248, 249, 250, 0.65);
  font-size: 14px;
  transition: color 0.25s, padding-left 0.3s;
  position: relative;
}

.footer-links a:hover {
  color: var(--jb-gold);
  padding-left: 8px;
}

.footer-change-text {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(248, 249, 250, 0.6);
}

.footer-change-text a {
  color: var(--jb-gold);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(245, 182, 66, 0.4);
}

.footer-change-meta {
  margin-top: 12px;
  font-size: 13px;
  color: rgba(248, 249, 250, 0.4);
  line-height: 1.7;
}

.footer-bottom {
  border-top: 1px solid rgba(248, 249, 250, 0.08);
  padding: 20px 0;
}

.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
}

.footer-copy,
.footer-icp,
.footer-note-direct {
  font-size: 13px;
  color: rgba(248, 249, 250, 0.45);
}

.footer-note-direct {
  margin-left: auto;
}

.footer-note-direct a {
  color: var(--jb-gold);
}

.footer-note-direct a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (max-width: 1080px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .primary-nav-link {
    padding: 10px 12px;
    font-size: 13px;
  }
}

@media (max-width: 900px) {
  .header-ribbon-inner {
    padding-inline: 16px;
  }

  .header-main-inner {
    padding-inline: 16px;
  }

  .nav-toggle {
    display: flex;
  }

  .primary-nav {
    flex: none;
  }

  html.has-js .primary-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(340px, 100%);
    background: linear-gradient(160deg, #101b4e, #0a1035 72%);
    border-left: 1px solid rgba(248, 249, 250, 0.12);
    box-shadow: -24px 0 64px rgba(4, 6, 24, 0.5);
    padding: 28px 24px;
    overflow-y: auto;
    transform: translateX(102%);
    visibility: hidden;
    transition: transform 0.45s var(--jb-ease-out), visibility 0.45s;
    z-index: 80;
    justify-content: flex-start;
  }

  html.has-js .primary-nav[data-open] {
    transform: translateX(0);
    visibility: visible;
  }

  html.has-js .primary-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
  }

  html.has-js .primary-nav-title {
    font-family: var(--jb-font-display);
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--jb-pearl);
    text-transform: uppercase;
  }

  html.has-js .primary-nav-close {
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1px solid rgba(248, 249, 250, 0.2);
    color: var(--jb-pearl);
    font-size: 20px;
    transition: border-color 0.25s, color 0.25s;
  }

  html.has-js .primary-nav-close:hover {
    border-color: var(--jb-gold);
    color: var(--jb-gold);
  }

  html.has-js .primary-nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  html.has-js .primary-nav-link {
    display: block;
    width: 100%;
    padding: 14px 16px;
    font-size: 16px;
    text-align: left;
  }

  html.has-js .primary-nav-cta {
    text-align: center;
    margin-top: 10px;
  }

  html:not(.has-js) .header-main-inner {
    flex-wrap: wrap;
  }

  html:not(.has-js) .primary-nav {
    flex: 0 0 100%;
    order: 3;
    border-top: 1px solid rgba(248, 249, 250, 0.1);
    margin-top: 8px;
    padding-top: 8px;
  }

  html:not(.has-js) .primary-nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  html:not(.has-js) .primary-nav-cta {
    text-align: center;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-note-direct {
    margin-left: 0;
  }
}

@media (max-width: 560px) {
  .container,
  .container-wide,
  .container-narrow {
    width: min(100% - 32px, var(--jb-container));
  }

  .header-intro {
    display: none;
  }

  .header-ribbon-inner {
    justify-content: space-between;
  }

  .header-lang {
    margin-left: auto;
  }

  .header-main-inner {
    gap: 12px;
    padding-block: 10px;
  }

  .brand-name-cn {
    font-size: 16px;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    font-size: 16px;
  }

  .footer-top {
    padding-top: 48px;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html.has-js [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .scroll-progress {
    display: none;
  }
}

@media print {
  .site-header,
  .site-footer,
  .scroll-progress,
  .back-to-top,
  .nav-scrim {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }
}