@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;600;700&display=swap");

:root {
  --xba-bg: #0c1222;
  --xba-bg-soft: #141c32;
  --xba-surface: rgba(22, 32, 56, 0.72);
  --xba-text: #e8edf7;
  --xba-muted: #9aa8c4;
  --xba-coral: #ff6b6b;
  --xba-mint: #3dd6c8;
  --xba-gold: #ffc857;
  --xba-line: rgba(255, 255, 255, 0.08);
  --xba-glass: rgba(255, 255, 255, 0.06);
  --xba-radius: 16px;
  --xba-topbar-h: 58px;
  --xba-dock-h: 0px;
  --xba-max: 1120px;
  --xba-font: "Noto Sans SC", system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--xba-font);
  background: var(--xba-bg);
  color: var(--xba-text);
  line-height: 1.75;
  font-size: 15px;
  padding-top: var(--xba-topbar-h);
  padding-bottom: calc(var(--xba-dock-h) + 16px);
  transition: padding-bottom 0.25s ease;
}

body.xba-dock-active {
  padding-bottom: calc(var(--xba-dock-h) + 20px);
}

body.xba-menu-lock {
  overflow: hidden;
}

a {
  color: var(--xba-mint);
  text-decoration: none;
  transition: color 0.2s;
}

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

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

.xba-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  height: var(--xba-topbar-h);
  background: rgba(12, 18, 34, 0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--xba-line);
  transition: box-shadow 0.25s;
}

.xba-topbar-scrolled {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.xba-topbar-inner {
  max-width: var(--xba-max);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
}

.xba-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--xba-text);
  font-weight: 700;
  font-size: 17px;
}

.xba-brand img {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  object-fit: cover;
}

.xba-navlist {
  display: none;
  list-style: none;
  gap: 6px;
}

.xba-navlist a {
  color: var(--xba-muted);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
}

.xba-navlist a:hover,
.xba-navlist a.xba-nav-active {
  color: var(--xba-text);
  background: var(--xba-glass);
}

.xba-burger {
  width: 42px;
  height: 42px;
  border: none;
  background: var(--xba-glass);
  border-radius: 12px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.xba-burger i {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--xba-text);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}

.xba-burger-open i:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.xba-burger-open i:nth-child(2) {
  opacity: 0;
}

.xba-burger-open i:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.xba-drawer {
  position: fixed;
  top: var(--xba-topbar-h);
  left: 0;
  right: 0;
  background: rgba(12, 18, 34, 0.97);
  backdrop-filter: blur(16px);
  z-index: 850;
  transform: translateY(-110%);
  opacity: 0;
  transition: transform 0.3s, opacity 0.3s;
  border-bottom: 1px solid var(--xba-line);
}

.xba-drawer-show {
  transform: translateY(0);
  opacity: 1;
}

.xba-drawer ul {
  list-style: none;
  padding: 12px 18px 20px;
}

.xba-drawer a {
  display: block;
  color: var(--xba-text);
  padding: 14px 8px;
  border-bottom: 1px solid var(--xba-line);
  font-weight: 500;
}

.xba-drawer a.xba-nav-active {
  color: var(--xba-mint);
}

.xba-dock {
  position: fixed;
  top: var(--xba-topbar-h);
  left: 0;
  right: 0;
  z-index: 800;
  background: rgba(12, 18, 34, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--xba-line);
  padding: 10px 12px;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.28s, opacity 0.28s;
}

.xba-dock-visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.xba-dock-grid {
  max-width: var(--xba-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}

.xba-dock-grid a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: var(--xba-muted);
  font-size: 11px;
  text-align: center;
}

.xba-dock-grid img {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  object-fit: cover;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
  transition: transform 0.18s;
}

.xba-dock-grid a:hover img {
  transform: scale(1.06);
}

.xba-dock-grid span {
  max-width: 64px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.xba-promo-zone {
  padding: 14px 16px 6px;
  background: linear-gradient(180deg, rgba(61, 214, 200, 0.06) 0%, transparent 100%);
}

.xba-promo-grid {
  max-width: var(--xba-max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.xba-promo-grid a {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 70px;
  color: var(--xba-muted);
  font-size: 11px;
}

.xba-promo-grid img {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  object-fit: cover;
  margin-bottom: 4px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
}

.xba-banner {
  position: relative;
  overflow: hidden;
  padding: 48px 18px 56px;
  background:
    radial-gradient(ellipse 80% 60% at 20% 0%, rgba(255, 107, 107, 0.18), transparent),
    radial-gradient(ellipse 70% 50% at 90% 30%, rgba(61, 214, 200, 0.14), transparent),
    var(--xba-bg-soft);
}

.xba-banner::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--xba-coral), var(--xba-mint), var(--xba-gold));
}

.xba-banner-wrap {
  max-width: var(--xba-max);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.xba-banner h1 {
  font-size: clamp(1.5rem, 5vw, 2.1rem);
  line-height: 1.35;
  font-weight: 700;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #fff 30%, var(--xba-mint));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.xba-banner-lead {
  color: var(--xba-muted);
  font-size: 15px;
  max-width: 680px;
}

.xba-main {
  max-width: var(--xba-max);
  margin: 0 auto;
  padding: 0 18px 48px;
}

.xba-zone {
  margin-top: 44px;
}

.xba-zone h2 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 18px;
  padding-left: 14px;
  border-left: 4px solid var(--xba-coral);
}

.xba-zone h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--xba-gold);
}

.xba-zone p {
  color: var(--xba-muted);
  margin-bottom: 14px;
}

.xba-mosaic {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.xba-chip-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.xba-chip {
  background: var(--xba-surface);
  border: 1px solid var(--xba-line);
  border-radius: var(--xba-radius);
  padding: 22px 20px;
  backdrop-filter: blur(8px);
  transition: border-color 0.25s, transform 0.25s;
}

.xba-chip:hover {
  border-color: rgba(61, 214, 200, 0.35);
  transform: translateY(-2px);
}

.xba-chip p {
  margin-bottom: 0;
  font-size: 14px;
}

.xba-duo {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: center;
}

.xba-duo-reverse .xba-duo-visual {
  order: -1;
}

.xba-shot {
  background: var(--xba-glass);
  border-radius: 20px;
  padding: 10px;
  border: 1px solid var(--xba-line);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
}

.xba-shot img {
  border-radius: 14px;
  width: 100%;
  max-width: 280px;
  margin: 0 auto;
}

.xba-shot figcaption {
  text-align: center;
  font-size: 12px;
  color: var(--xba-muted);
  margin-top: 8px;
}

.xba-triple {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.xba-triple .xba-shot img {
  max-width: 100%;
}

.xba-cta-band {
  margin-top: 48px;
  padding: 32px 24px;
  border-radius: 20px;
  text-align: center;
  background:
    linear-gradient(135deg, rgba(255, 107, 107, 0.12), rgba(61, 214, 200, 0.1)),
    var(--xba-surface);
  border: 1px solid var(--xba-line);
}

.xba-cta-band h2 {
  border: none;
  padding: 0;
  margin-bottom: 12px;
}

.xba-btn-dl {
  display: inline-block;
  margin-top: 8px;
  padding: 13px 32px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--xba-coral), #ff8e53);
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  box-shadow: 0 8px 24px rgba(255, 107, 107, 0.35);
  transition: transform 0.2s, box-shadow 0.2s;
}

.xba-btn-dl:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(255, 107, 107, 0.45);
}

.xba-foot {
  border-top: 1px solid var(--xba-line);
  padding: 28px 18px;
  background: var(--xba-bg-soft);
}

.xba-foot-inner {
  max-width: var(--xba-max);
  margin: 0 auto;
  text-align: center;
}

.xba-footnav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 16px;
  list-style: none;
  margin-bottom: 14px;
}

.xba-footnav a {
  color: var(--xba-muted);
  font-size: 14px;
}

.xba-footnav a.xba-nav-active {
  color: var(--xba-mint);
}

.xba-foot-copy {
  font-size: 13px;
  color: var(--xba-muted);
}

.xba-crumb {
  max-width: var(--xba-max);
  margin: 0 auto;
  padding: 16px 18px 0;
  font-size: 13px;
  color: var(--xba-muted);
}

.xba-crumb a {
  color: var(--xba-muted);
}

.xba-crumb span {
  color: var(--xba-text);
}

.xba-subpage {
  max-width: var(--xba-max);
  margin: 0 auto;
  padding: 24px 18px 48px;
}

.xba-subpage h1 {
  font-size: 1.6rem;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--xba-line);
}

.xba-subpage h2 {
  font-size: 1.15rem;
  margin: 28px 0 12px;
  color: var(--xba-gold);
}

.xba-subpage p,
.xba-subpage li {
  color: var(--xba-muted);
  margin-bottom: 12px;
}

.xba-subpage ul {
  padding-left: 20px;
  margin-bottom: 16px;
}

.xba-error-page {
  text-align: center;
  padding: 60px 18px 80px;
}

.xba-error-code {
  font-size: 5rem;
  font-weight: 700;
  line-height: 1;
  background: linear-gradient(135deg, var(--xba-coral), var(--xba-mint));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.xba-error-page h1 {
  font-size: 1.4rem;
  margin: 16px 0 10px;
  border: none;
  padding: 0;
}

.xba-error-page p {
  color: var(--xba-muted);
  margin-bottom: 24px;
}

.xba-error-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.xba-error-links a {
  padding: 10px 22px;
  border-radius: 999px;
  border: 1px solid var(--xba-line);
  color: var(--xba-text);
  font-size: 14px;
}

.xba-error-links a:hover {
  border-color: var(--xba-mint);
  color: var(--xba-mint);
}

@media (min-width: 640px) {
  .xba-chip-row {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (min-width: 768px) {
  .xba-navlist {
    display: flex;
  }

  .xba-burger {
    display: none;
  }

  .xba-duo {
    grid-template-columns: 1fr 1fr;
  }

  .xba-duo-reverse .xba-duo-visual {
    order: 1;
  }

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

  .xba-dock-grid {
    grid-template-columns: repeat(8, 1fr);
  }
}

@media (min-width: 960px) {
  .xba-chip-row {
    grid-template-columns: repeat(4, 1fr);
  }
}