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

:root {
  --color-primary: #C8102E;
  --color-primary-hover: #FF99A8;
  --color-ink: #0A0A0A;
  --color-gold: #D4AF37;
  --color-bone: #F5F5F0;
  --color-green: #00D47E;
  --color-blue: #2D9CDB;
  --color-muted: #B0B0B0;
  --glass: rgba(255, 255, 255, 0.08);
  --gradient-bg: linear-gradient(135deg, #0A0A0A 0%, #2E0A12 45%, #0A0A0A 100%);
  --font-display: Impact, "Arial Black", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  --space-side: clamp(16px, 4vw, 48px);
  --container: 1200px;
  --radius: 6px;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background-color: var(--color-ink);
  background-image: var(--gradient-bg);
  background-attachment: fixed;
  color: var(--color-bone);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  line-height: 1.15;
  overflow-wrap: break-word;
  font-family: var(--font-display);
  font-weight: 900;
}

p {
  overflow-wrap: break-word;
}

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

a {
  color: var(--color-gold);
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-primary-hover);
}

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

button {
  cursor: pointer;
}

ul, ol {
  list-style: none;
}

::selection {
  background: var(--color-primary);
  color: var(--color-bone);
}

#main-content {
  display: block;
  scroll-margin-top: 96px;
  outline: none;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 3000;
  background: var(--color-gold);
  color: var(--color-ink);
  padding: 10px 16px;
  text-decoration: none;
  font-weight: 700;
  border-radius: 0 0 6px 0;
  transition: left 0.2s ease;
}

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

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-side);
}

.section {
  padding-block: clamp(56px, 8vw, 112px);
}

.section-kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-gold);
}

.section-kicker::before {
  content: "";
  width: 32px;
  height: 2px;
  background: var(--color-primary);
  flex: none;
}

.section-heading {
  margin-top: 0.35em;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-style: italic;
  line-height: 1.05;
  text-transform: uppercase;
  color: var(--color-bone);
}

.gold-rule {
  border: 0;
  height: 2px;
  width: 72px;
  margin-top: 20px;
  background: linear-gradient(90deg, var(--color-gold), rgba(212, 175, 55, 0));
}

.grid {
  display: grid;
  gap: clamp(16px, 3vw, 28px);
}

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

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

@media (max-width: 900px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

.site-header {
  position: relative;
  z-index: 50;
  background: rgba(10, 10, 10, 0.68);
  border-bottom: 1px solid rgba(212, 175, 55, 0.35);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.site-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary) 0 35%, var(--color-gold) 35% 65%, var(--color-primary) 65%);
  z-index: 1;
}

.header-inner {
  position: relative;
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding: 20px var(--space-side) 0;
}

.masthead {
  text-align: center;
  position: relative;
}

.masthead-kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--color-gold);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.44em;
  text-transform: uppercase;
  padding-left: 0.44em;
}

.masthead-kicker::before,
.masthead-kicker::after {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--color-primary);
}

.masthead-title {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: baseline;
  gap: 0.12em;
  margin-top: 6px;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 900;
  font-size: clamp(1.3rem, 3.4vw, 2.5rem);
  line-height: 1.08;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.masthead-title-cn {
  color: var(--color-bone);
}

.masthead-title-amp {
  color: var(--color-primary);
  font-style: normal;
}

.masthead-title-en {
  color: var(--color-gold);
}

.site-nav {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  column-gap: 16px;
  margin-top: 14px;
  border-top: 1px solid rgba(212, 175, 55, 0.32);
  border-bottom: 1px solid rgba(212, 175, 55, 0.32);
  background: rgba(10, 10, 10, 0.25);
}

.nav-list {
  grid-column: 2;
  justify-self: center;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 4px;
}

.nav-item {
  flex: none;
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 14px 12px;
  color: var(--color-bone);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9375rem;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 8px;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  color: var(--color-gold);
}

.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-link[aria-current="page"]::after {
  background: var(--color-gold);
}

.nav-toggle {
  display: none;
}

.nav-toggle-box {
  position: relative;
  width: 18px;
  height: 14px;
  display: block;
  flex: none;
}

.nav-toggle-box span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: top 0.2s ease, transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle-box span:nth-child(1) {
  top: 0;
}

.nav-toggle-box span:nth-child(2) {
  top: 6px;
}

.nav-toggle-box span:nth-child(3) {
  top: 12px;
}

.nav-toggle-text {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 12px 20px;
  border: 1px solid transparent;
  background: transparent;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.9375rem;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  border-radius: var(--radius);
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.button-primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #FFFFFF;
  box-shadow: 0 6px 20px rgba(200, 16, 46, 0.35);
}

.button-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: var(--color-ink);
  transform: translateY(-2px);
}

.button-outline {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.button-outline:hover {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-ink);
  transform: translateY(-2px);
}

.button-ghost {
  border-color: rgba(255, 255, 255, 0.25);
  color: var(--color-bone);
}

.button-ghost:hover {
  border-color: #FFFFFF;
  background: rgba(255, 255, 255, 0.06);
}

.button-small {
  padding: 8px 14px;
  font-size: 0.8125rem;
}

.button-large {
  padding: 16px 28px;
  font-size: 1rem;
}

.button-download {
  grid-column: 3;
  justify-self: end;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  min-width: 132px;
}

.site-footer {
  position: relative;
  margin-top: 80px;
  background: rgba(5, 5, 5, 0.92);
  border-top: 1px solid rgba(212, 175, 55, 0.4);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(200, 16, 46, 0.15), transparent 60%);
  pointer-events: none;
}

.footer-inner {
  position: relative;
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 2.2fr 1fr 1.4fr;
  gap: clamp(24px, 4vw, 56px);
  padding: clamp(40px, 6vw, 72px) var(--space-side);
}

.footer-brand-name {
  display: inline-block;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 900;
  font-size: 1.5rem;
  color: var(--color-bone);
  border-left: 4px solid var(--color-primary);
  padding-left: 10px;
}

.footer-slogan {
  margin-top: 10px;
  color: var(--color-gold);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
}

.footer-trust {
  margin-top: 16px;
  max-width: 36ch;
  font-size: 0.875rem;
  color: var(--color-muted);
}

.footer-heading {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  border-bottom: 1px solid rgba(212, 175, 55, 0.2);
  padding-bottom: 8px;
  margin-bottom: 14px;
}

.footer-nav li + li {
  margin-top: 8px;
}

.footer-nav a {
  color: var(--color-bone);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-nav a:hover {
  color: var(--color-gold);
}

.footer-contact {
  font-size: 0.875rem;
  color: var(--color-muted);
}

.footer-contact li + li {
  margin-top: 10px;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.footer-legal a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 4px 10px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 3px;
  color: var(--color-bone);
  text-decoration: none;
  font-size: 0.75rem;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.footer-legal a:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.footer-bottom {
  position: relative;
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding: 16px var(--space-side);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.footer-copyright {
  margin: 0;
}

.footer-icp {
  margin: 0;
  color: var(--color-bone);
}

.breadcrumbs {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding: 24px var(--space-side) 0;
  font-size: 0.8125rem;
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
}

.breadcrumbs li {
  display: inline-flex;
  align-items: center;
}

.breadcrumbs li + li::before {
  content: "/";
  margin-inline: 10px;
  color: var(--color-muted);
}

.breadcrumbs a {
  color: var(--color-bone);
  text-decoration: none;
}

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

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

.card {
  position: relative;
  background: var(--glass);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius);
  padding: clamp(18px, 3vw, 28px);
  overflow: hidden;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.card-solid {
  background: rgba(10, 10, 10, 0.82);
  border-color: rgba(200, 16, 46, 0.45);
  border-left-color: var(--color-primary);
}

.card-highlight {
  border-color: rgba(200, 16, 46, 0.6);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.25);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: rgba(212, 175, 55, 0.1);
  border: 1px solid rgba(212, 175, 55, 0.3);
  border-left: 3px solid var(--color-primary);
  color: var(--color-gold);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 2px;
}

.data-line {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: clamp(0.9375rem, 2vw, 1.125rem);
  color: var(--color-green);
}

.data-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.5em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--color-gold);
}

.live-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-green);
  box-shadow: 0 0 0 0 rgba(0, 212, 126, 0.6);
  animation: live-pulse 2s infinite;
}

@keyframes live-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(0, 212, 126, 0.6);
  }
  100% {
    box-shadow: 0 0 0 8px rgba(0, 212, 126, 0);
  }
}

.status-live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-green);
}

.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-tabs button {
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--color-bone);
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.filter-tabs button:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.filter-tabs button[aria-selected="true"] {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #FFFFFF;
}

.accordion {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-left: 3px solid var(--color-gold);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 4px;
}

.accordion + .accordion {
  margin-top: 10px;
}

.accordion summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 18px;
  font-weight: 700;
}

.accordion summary::-webkit-details-marker {
  display: none;
}

.accordion[open] summary {
  color: var(--color-gold);
}

.accordion-content {
  padding: 0 18px 16px;
  color: var(--color-muted);
}

.media-placeholder {
  position: relative;
  overflow: hidden;
  aspect-ratio: var(--media-ratio, 16 / 9);
  background: linear-gradient(135deg, rgba(200, 16, 46, 0.28), rgba(10, 10, 10, 0.55)), var(--gradient-bg);
  border: 1px solid rgba(212, 175, 55, 0.25);
  border-radius: var(--radius);
}

.media-placeholder::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(115deg, transparent 35%, rgba(212, 175, 55, 0.18) 50%, transparent 65%),
    linear-gradient(45deg, rgba(255, 255, 255, 0.06) 25%, transparent 25%);
  background-size: 140% 100%, 24px 24px;
  pointer-events: none;
}

.media-placeholder::after {
  content: attr(data-label);
  position: absolute;
  left: 12px;
  bottom: 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-bone);
}

.ratio-wide {
  --media-ratio: 21 / 9;
}

.ratio-portrait {
  --media-ratio: 3 / 4;
}

.clip-slash {
  clip-path: polygon(0 0, 100% 0, calc(100% - 18px) 100%, 0 100%);
}

.clip-slash-reverse {
  clip-path: polygon(18px 0, 100% 0, 100% 100%, 0 100%);
}

html.js [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

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

@media (max-width: 960px) {
  .header-inner {
    padding-top: 16px;
  }

  .masthead {
    padding: 4px 48px 8px;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    position: absolute;
    right: var(--space-side);
    top: 16px;
    z-index: 1200;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 4px;
    color: var(--color-bone);
    padding: 8px 12px;
  }

  .nav-toggle:hover {
    border-color: var(--color-gold);
    color: var(--color-gold);
  }

  .nav-toggle:hover .nav-toggle-box span {
    background: var(--color-gold);
  }

  .site-btn {
    display: none;
  }

  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 1100;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    width: min(340px, 86vw);
    height: 100vh;
    height: 100dvh;
    margin: 0;
    padding: 88px var(--space-side) 32px;
    background: rgba(5, 5, 5, 0.98);
    border-top: 0;
    border-bottom: 0;
    border-left: 1px solid rgba(212, 175, 55, 0.3);
    overflow-y: auto;
    transform: translateX(102%);
    visibility: hidden;
    box-shadow: -20px 0 40px rgba(0, 0, 0, 0.4);
    transition: transform 0.28s ease, visibility 0s linear 0.28s;
  }

  .site-header[data-open] .site-nav,
  .site-nav[data-open] {
    transform: translateX(0);
    visibility: visible;
    transition-delay: 0s;
  }

  .site-header[data-open] .nav-toggle-box span:nth-child(1) {
    top: 6px;
    transform: rotate(45deg);
  }

  .site-header[data-open] .nav-toggle-box span:nth-child(2) {
    opacity: 0;
  }

  .site-header[data-open] .nav-toggle-box span:nth-child(3) {
    top: 6px;
    transform: rotate(-45deg);
  }

  .site-nav .nav-list {
    grid-column: auto;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 0;
    margin: 0;
    padding: 0;
  }

  .site-nav .nav-item {
    width: 100%;
  }

  .site-nav .nav-link {
    width: 100%;
    padding: 15px 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    white-space: normal;
    text-align: left;
  }

  .site-nav .nav-link::after {
    left: 8px;
    right: 8px;
    bottom: 4px;
  }

  .site-nav .button-download {
    grid-column: auto;
    justify-self: stretch;
    width: 100%;
    margin-top: 24px;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 620px) {
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    transition-delay: 0ms !important;
    scroll-behavior: auto !important;
  }

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

  .live-dot,
  .status-live .live-dot {
    animation: none;
  }
}