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

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

body {
  font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #F0F4F8;
  background: #0A1E3D;
}

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

a {
  color: #FF6A00;
  text-decoration: none;
}

a:hover {
  color: #39FF14;
}

ul, ol {
  list-style: none;
}

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

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: 700;
}

:root {
  --bw-blue-900: #0A1E3D;
  --bw-blue-700: #163A5F;
  --bw-orange: #FF6A00;
  --bw-green: #39FF14;
  --bw-text: #F0F4F8;
  --bw-muted: #A0B0C0;
  --bw-border: #1E4D7B;
  --bw-red: #FF3B30;
  --bw-font-headline: Impact, 'Arial Black', sans-serif;
  --bw-font-body: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  --bw-font-mono: 'JetBrains Mono', 'Consolas', monospace;
  --bw-header-h: 64px;
  --bw-ticker-h: 36px;
  --bw-border-w: 3px;
  --bw-max: 1200px;
  --bw-gutter: 24px;
  --bw-shadow: 0 8px 0 rgba(0, 0, 0, 0.3);
}

.bw-container {
  max-width: var(--bw-max);
  margin: 0 auto;
  padding-left: var(--bw-gutter);
  padding-right: var(--bw-gutter);
}

.bw-section {
  padding: 4rem 0;
}

.bw-skip {
  position: fixed;
  top: 0;
  left: 1rem;
  z-index: 9999;
  transform: translateY(-120%);
  background: var(--bw-orange);
  color: var(--bw-blue-900);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.6rem 1.2rem;
  border-radius: 0 0 4px 4px;
  transition: transform 0.2s;
}

.bw-skip:focus {
  transform: translateY(0);
  outline: none;
}

.bw-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 2000;
  background: var(--bw-blue-900);
  border-bottom: var(--bw-border-w) solid var(--bw-border);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
}

.bw-header__bar {
  height: var(--bw-header-h);
  position: relative;
  background-color: var(--bw-blue-900);
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 24px 24px;
}

.bw-header__inner {
  max-width: var(--bw-max);
  margin: 0 auto;
  padding: 0 var(--bw-gutter);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  position: relative;
}

.bw-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
  position: relative;
}

.bw-brand__name {
  font-family: var(--bw-font-headline);
  font-size: 1.8rem;
  font-style: italic;
  font-weight: 700;
  line-height: 1;
  color: var(--bw-text);
  letter-spacing: 0.02em;
  position: relative;
  z-index: 1;
}

.bw-brand__name::after {
  content: "";
  position: absolute;
  left: -0.05em;
  right: -0.05em;
  bottom: 0.05em;
  height: 0.4em;
  background: var(--bw-orange);
  opacity: 0.35;
  z-index: -1;
  transform: skewX(-12deg);
}

.bw-brand:hover .bw-brand__name::after {
  opacity: 0.7;
}

.bw-brand__ver {
  font-family: var(--bw-font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--bw-blue-900);
  background: var(--bw-green);
  padding: 0.2rem 0.45rem;
  border-radius: 2px;
  transform: rotate(3deg);
  align-self: flex-start;
  margin-top: 0.2rem;
}

.bw-nav__list {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.bw-nav__link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.3rem;
  padding: 0.55rem 0.6rem;
  color: var(--bw-muted);
  font-size: 0.88rem;
  font-weight: 500;
  border-bottom: 3px solid transparent;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
  white-space: nowrap;
}

.bw-nav__idx {
  font-family: var(--bw-font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--bw-orange);
}

.bw-nav__link:hover {
  color: var(--bw-text);
  border-bottom-color: var(--bw-orange);
  background: rgba(255, 106, 0, 0.08);
}

.bw-nav__link[aria-current="page"] {
  color: var(--bw-text);
  border-bottom-color: var(--bw-orange);
  background: rgba(255, 106, 0, 0.12);
  font-weight: 700;
}

.bw-nav__link[aria-current="page"] .bw-nav__idx {
  color: var(--bw-green);
}

.bw-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.7rem;
  border: 2px solid var(--bw-border);
  background: var(--bw-blue-700);
  flex-shrink: 0;
}

.bw-status__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--bw-green);
  animation: bw-pulse 2s ease-in-out infinite;
}

.bw-status__text {
  font-family: var(--bw-font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--bw-text);
}

@keyframes bw-pulse {
  0%, 100% {
    opacity: 1;
    box-shadow: 0 0 0 0 rgba(57, 255, 20, 0.6);
  }
  50% {
    opacity: 0.5;
    box-shadow: 0 0 8px 2px rgba(57, 255, 20, 0.3);
  }
}

.bw-nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  width: 48px;
  height: 48px;
  border: 2px solid var(--bw-border);
  background: var(--bw-blue-700);
  flex-shrink: 0;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.bw-nav-toggle:hover {
  border-color: var(--bw-orange);
  background: var(--bw-blue-900);
}

.bw-nav-toggle__bar {
  display: block;
  width: 20px;
  height: 2.5px;
  background: var(--bw-orange);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.bw-nav-toggle__label {
  font-size: 0.6rem;
  font-weight: 700;
  color: var(--bw-muted);
  letter-spacing: 0.15em;
  line-height: 1;
}

.bw-nav-toggle[aria-expanded="true"] .bw-nav-toggle__bar:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.bw-nav-toggle[aria-expanded="true"] .bw-nav-toggle__bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.bw-nav-toggle[aria-expanded="true"] .bw-nav-toggle__bar:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

.bw-ticker {
  position: relative;
  height: var(--bw-ticker-h);
  overflow: hidden;
  background: var(--bw-blue-700);
  border-top: 1px solid var(--bw-border);
  display: flex;
  align-items: center;
}

.bw-ticker__track {
  display: flex;
  align-items: center;
  width: max-content;
  animation: bw-ticker-scroll 40s linear infinite;
  will-change: transform;
}

.bw-ticker:hover .bw-ticker__track {
  animation-play-state: paused;
}

.bw-ticker__item,
.bw-ticker__sep {
  flex-shrink: 0;
  white-space: nowrap;
  margin-right: 2rem;
}

.bw-ticker__item {
  font-family: var(--bw-font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  color: var(--bw-text);
}

.bw-ticker__sep {
  font-family: var(--bw-font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--bw-orange);
}

@keyframes bw-ticker-scroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

.bw-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: calc(-1 * var(--bw-border-w));
  height: var(--bw-border-w);
  z-index: 5;
  pointer-events: none;
}

.bw-progress__bar {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--bw-orange);
  box-shadow: 0 0 10px rgba(255, 106, 0, 0.6);
  transition: width 0.1s linear;
}

.bw-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 2500;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.75rem;
}

.bw-float__toggle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--bw-orange);
  border: 3px solid var(--bw-text);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.35);
  color: var(--bw-blue-900);
  font-family: var(--bw-font-headline);
  font-size: 1.3rem;
  font-style: italic;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}

.bw-float__toggle:hover {
  background: var(--bw-green);
  transform: scale(1.06) rotate(8deg);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.35);
}

.bw-float__panel {
  display: none;
  width: 260px;
  background: var(--bw-blue-700);
  border: var(--bw-border-w) solid var(--bw-border);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.4);
  padding: 1.25rem;
}

.bw-float[data-open] .bw-float__panel {
  display: block;
}

.bw-float__label {
  font-family: var(--bw-font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--bw-orange);
  margin: 0.75rem 0 0.15rem;
}

.bw-float__label:first-child {
  margin-top: 0;
}

.bw-float__value {
  font-size: 0.88rem;
  color: var(--bw-text);
  word-break: break-all;
}

.bw-float__value:last-of-type {
  margin-bottom: 0.9rem;
}

.bw-footer {
  background: var(--bw-blue-900);
  border-top: 6px solid var(--bw-orange);
  position: relative;
  margin-top: 4rem;
}

.bw-footer::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 0;
  width: 140px;
  height: 6px;
  background: var(--bw-green);
}

.bw-footer__inner {
  max-width: var(--bw-max);
  margin: 0 auto;
  padding: 3rem var(--bw-gutter) 0;
}

.bw-footer__grid {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1.2fr 1.6fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--bw-border);
}

.bw-footer__col--brand .bw-brand__name {
  font-size: 2.2rem;
}

.bw-footer__desc {
  font-size: 0.92rem;
  color: var(--bw-muted);
  margin-top: 0.75rem;
  max-width: 32em;
}

.bw-footer__trust {
  font-family: var(--bw-font-mono);
  font-size: 0.72rem;
  color: var(--bw-green);
  margin-top: 1rem;
  padding: 0.5rem 0.75rem;
  border: 1px dashed var(--bw-border);
  background: rgba(57, 255, 20, 0.04);
  display: inline-block;
}

.bw-footer__title {
  font-family: var(--bw-font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--bw-orange);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.bw-footer__title::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--bw-orange);
  display: block;
  flex-shrink: 0;
}

.bw-footer__list li {
  font-size: 0.88rem;
  color: var(--bw-muted);
  margin-bottom: 0.6rem;
}

.bw-footer__list a {
  color: var(--bw-muted);
  transition: color 0.2s, padding-left 0.2s;
}

.bw-footer__list a:hover {
  color: var(--bw-green);
  padding-left: 4px;
}

.bw-footer__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 2rem;
  padding: 1.25rem 0 1.5rem;
  font-family: var(--bw-font-mono);
  font-size: 0.75rem;
  color: var(--bw-muted);
}

.bw-footer__icp {
  color: var(--bw-muted);
  letter-spacing: 0.05em;
}

.bw-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.6rem;
  font-family: var(--bw-font-body);
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.04em;
  color: var(--bw-text);
  background: var(--bw-blue-700);
  border: var(--bw-border-w) solid var(--bw-border);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.3);
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}

.bw-btn:hover {
  background: var(--bw-orange);
  border-color: var(--bw-orange);
  color: var(--bw-blue-900);
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 rgba(0, 0, 0, 0.3);
}

.bw-btn--ghost {
  background: transparent;
  color: var(--bw-orange);
  border-color: var(--bw-orange);
}

.bw-btn--ghost:hover {
  background: var(--bw-orange);
  color: var(--bw-blue-900);
}

.bw-btn--small {
  padding: 0.4rem 1rem;
  font-size: 0.8rem;
  border-width: 2px;
  box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.3);
}

.bw-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--bw-font-mono);
  font-size: 0.8rem;
  color: var(--bw-muted);
  padding: 0.75rem 0;
}

.bw-breadcrumb a {
  color: var(--bw-orange);
  text-decoration: none;
}

.bw-breadcrumb a:hover {
  color: var(--bw-green);
}

.bw-breadcrumb__sep {
  color: var(--bw-border);
}

.bw-breadcrumb__current {
  color: var(--bw-text);
  font-weight: 700;
}

.bw-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.5rem;
}

.bw-card {
  background: var(--bw-blue-700);
  border: var(--bw-border-w) solid var(--bw-border);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.25);
  padding: 1.5rem;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.bw-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.3);
  border-color: var(--bw-orange);
}

.bw-media {
  position: relative;
  overflow: hidden;
  background: var(--bw-blue-700);
  border: var(--bw-border-w) solid var(--bw-border);
  box-shadow: var(--bw-shadow);
  display: block;
  width: 100%;
}

.bw-media::before {
  content: "";
  display: block;
  padding-top: 56.25%;
}

.bw-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 106, 0, 0.1), transparent 40%);
  pointer-events: none;
}

.bw-media > img,
.bw-media > picture,
.bw-media > video,
.bw-media > .bw-media__placeholder {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bw-media--landscape::before {
  padding-top: 56.25%;
}

.bw-media--portrait::before {
  padding-top: 75%;
}

.bw-media--square::before {
  padding-top: 100%;
}

.bw-media--wide::before {
  padding-top: 42%;
}

.bw-media__placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--bw-font-mono);
  font-size: 0.8rem;
  color: var(--bw-muted);
  background:
    repeating-linear-gradient(45deg, transparent, transparent 12px, rgba(255, 255, 255, 0.03) 12px, rgba(255, 255, 255, 0.03) 13px),
    var(--bw-blue-700);
}

#main-content {
  display: block;
  padding-top: calc(var(--bw-header-h) + var(--bw-ticker-h) + var(--bw-border-w));
  min-height: 60vh;
}

:focus-visible {
  outline: 3px solid var(--bw-green);
  outline-offset: 2px;
}

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

@media (max-width: 1100px) {
  .bw-nav__link {
    padding: 0.5rem 0.4rem;
    font-size: 0.82rem;
  }
  .bw-nav__idx {
    font-size: 0.65rem;
  }
  .bw-brand__name {
    font-size: 1.6rem;
  }
}

@media (max-width: 900px) {
  .bw-status {
    display: none;
  }
  .bw-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --bw-header-h: 56px;
    --bw-ticker-h: 30px;
    --bw-gutter: 16px;
  }

  .bw-nav-toggle {
    display: inline-flex;
  }

  .bw-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    background: var(--bw-blue-900);
    border-bottom: var(--bw-border-w) solid var(--bw-border);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.5);
    z-index: 100;
    max-height: calc(100vh - var(--bw-header-h) - var(--bw-ticker-h));
    overflow-y: auto;
  }

  .bw-nav[data-open] {
    display: block;
  }

  .bw-nav__list {
    flex-direction: column;
    align-items: stretch;
    padding: 0.75rem 0;
    gap: 0;
  }

  .bw-nav__item {
    border-bottom: 1px solid rgba(30, 77, 123, 0.4);
  }

  .bw-nav__item:last-child {
    border-bottom: none;
  }

  .bw-nav__link {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.8rem 1rem;
    font-size: 1rem;
    border-left: 4px solid transparent;
    border-bottom: none;
  }

  .bw-nav__link:hover,
  .bw-nav__link[aria-current="page"] {
    border-left-color: var(--bw-orange);
    border-bottom-color: transparent;
  }

  .bw-brand__name {
    font-size: 1.45rem;
  }

  .bw-footer__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .bw-ticker__item {
    font-size: 0.7rem;
  }

  .bw-ticker__item,
  .bw-ticker__sep {
    margin-right: 1.2rem;
  }
}

@media (max-width: 480px) {
  .bw-brand__ver {
    display: none;
  }
  .bw-float {
    bottom: 1rem;
    right: 1rem;
  }
  .bw-float__toggle {
    width: 48px;
    height: 48px;
    font-size: 1.1rem;
  }
  .bw-float__panel {
    width: 220px;
  }
}

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

  .bw-ticker__track {
    animation: none;
  }

  .bw-status__dot {
    animation: none;
  }

  .bw-ticker {
    overflow-x: auto;
  }

  .bw-btn,
  .bw-card,
  .bw-nav__link,
  .bw-float__toggle,
  .bw-float__panel,
  .bw-skip,
  .bw-nav-toggle__bar,
  .bw-footer__list a,
  .bw-progress__bar {
    transition: none;
  }
}