:root {
  --bg: #24003f;
  --bg-deep: #16002b;
  --bg-soft: #2d0052;
  --bg-mid: #3b006b;
  --bg-bright: #4a007f;
  --cyan: #25dff5;
  --pink: #f06bea;
  --title: #bfffff;
  --text: #ffffff;
  --muted: #d8c7ff;
  --soft: #b99ee8;
  --line: rgba(191,255,255,.14);
  --card: rgba(60,0,100,.56);
  --shadow: 0 18px 46px rgba(0,0,0,.32);
  --radius: 22px;
  --container: min(1180px, calc(100% - 40px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 10% 10%, rgba(37,223,245,.09), transparent 28%),
    radial-gradient(circle at 90% 24%, rgba(240,107,234,.12), transparent 32%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  color: var(--text);
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
}
body.drawer-open { overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; }
button { color: inherit; }

.emoji-field {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}
.emoji-field span {
  position: absolute;
  left: var(--x);
  bottom: -12vh;
  font-size: calc(22px * var(--s));
  opacity: .13;
  filter: drop-shadow(0 0 12px rgba(37,223,245,.28));
  animation: floatEmoji 22s linear infinite;
  animation-delay: var(--d);
}
@keyframes floatEmoji {
  0% { transform: translate3d(-8px, 0, 0) rotate(-8deg); opacity: 0; }
  12% { opacity: .16; }
  50% { transform: translate3d(18px, -55vh, 0) rotate(8deg); }
  88% { opacity: .14; }
  100% { transform: translate3d(-12px, -118vh, 0) rotate(-6deg); opacity: 0; }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(36,0,63,.72);
  border-bottom: 1px solid rgba(191,255,255,.10);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
.header-inner {
  width: var(--container);
  min-height: 74px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand { flex: 0 0 auto; display: inline-flex; align-items: center; }
.brand img { width: 148px; max-height: 46px; object-fit: contain; }
.desktop-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  white-space: nowrap;
}
.desktop-nav a {
  position: relative;
  color: rgba(255,255,255,.88);
  font-size: 14px;
  transition: color .2s ease;
}
.desktop-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -10px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--pink));
  transform: translateX(-50%);
  transition: width .2s ease;
}
.desktop-nav a:hover,
.desktop-nav a.active { color: var(--title); }
.desktop-nav a:hover::after,
.desktop-nav a.active::after { width: 100%; }
.header-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.main-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  background: linear-gradient(90deg, #21dff5 0%, #8f7bff 52%, #f06bea 100%);
  color: #fff;
  border-radius: 6px;
  box-shadow: 0 14px 30px rgba(240,107,234,.26);
  font-weight: 800;
  letter-spacing: .02em;
  transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
}
.main-btn:hover { transform: translateY(-1px); box-shadow: 0 18px 40px rgba(37,223,245,.30); filter: brightness(1.06); }
.header-cta { min-height: 40px; padding: 0 16px; font-size: 14px; }
.menu-toggle {
  width: 42px;
  height: 42px;
  border: 1px solid rgba(191,255,255,.22);
  border-radius: 10px;
  background: rgba(255,255,255,.06);
  display: grid;
  place-content: center;
  gap: 5px;
  cursor: pointer;
}
.menu-toggle span { width: 20px; height: 2px; background: #fff; border-radius: 10px; }
.drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: 2100;
  background: rgba(5,0,14,.66);
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s ease, visibility .25s ease;
}
.drawer-overlay.show { opacity: 1; visibility: visible; }
.side-drawer {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 2200;
  width: min(390px, 88vw);
  height: 100dvh;
  overflow-y: auto;
  transform: translateX(102%);
  background: linear-gradient(180deg, #2d0052 0%, #16002b 100%);
  border-left: 1px solid rgba(191,255,255,.16);
  box-shadow: -30px 0 80px rgba(0,0,0,.45);
  transition: transform .3s ease;
  padding: 22px;
}
.side-drawer.open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding-bottom: 18px; border-bottom: 1px solid rgba(191,255,255,.12); }
.drawer-head img { width: 150px; max-height: 44px; object-fit: contain; }
.drawer-close { width: 40px; height: 40px; border: 0; border-radius: 10px; background: rgba(255,255,255,.08); font-size: 28px; cursor: pointer; }
.drawer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 22px 0; }
.drawer-nav a { padding: 11px 12px; border: 1px solid rgba(191,255,255,.09); border-radius: 10px; background: rgba(255,255,255,.04); color: var(--muted); }
.drawer-nav a:hover { border-color: rgba(37,223,245,.36); color: var(--title); background: rgba(37,223,245,.08); }
.drawer-cta { width: 100%; }

.site-main, .site-footer { position: relative; z-index: 1; }
.container { width: var(--container); margin: 0 auto; }
.section-space { padding: 88px 0; }
.soft-section { background: linear-gradient(180deg, rgba(45,0,82,.68), rgba(22,0,43,.42)); border-top: 1px solid rgba(191,255,255,.07); border-bottom: 1px solid rgba(191,255,255,.07); }
.section-heading { max-width: 760px; margin-bottom: 36px; }
.section-heading.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow { margin: 0 0 10px; color: var(--cyan); font-size: 13px; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
h1, h2, h3, .section-title { color: var(--title); text-shadow: 0 0 18px rgba(37,223,245,.20); line-height: 1.28; }
h1 { font-size: clamp(40px, 6vw, 76px); margin: 0 0 20px; }
h2, .section-title { font-size: clamp(28px, 3.5vw, 44px); margin: 0 0 16px; }
h3 { font-size: 20px; margin: 0 0 10px; }
p { color: var(--muted); margin: 0 0 16px; }
.section-intro { max-width: 760px; color: var(--muted); }
.text-link { color: var(--cyan); font-weight: 800; }
.text-link:hover { color: var(--title); }
.glass-panel, .card, .zone-card, .info-card {
  background: rgba(60,0,100,.56);
  border: 1px solid rgba(191,255,255,.14);
  box-shadow: 0 18px 46px rgba(0,0,0,.32);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.home-hero {
  position: relative;
  min-height: min(820px, calc(100vh - 74px));
  display: grid;
  align-items: center;
  overflow: hidden;
  background-image: linear-gradient(90deg, rgba(22,0,43,.90) 0%, rgba(36,0,63,.74) 48%, rgba(22,0,43,.48) 100%), url('背景.webp');
  background-size: cover;
  background-position: center;
}
.home-hero::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 38%;
  background: linear-gradient(180deg, transparent, rgba(74,0,127,.38) 55%, var(--bg));
  pointer-events: none;
}
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; gap: 54px; align-items: center; padding: 90px 0 120px; }
.hero-copy { max-width: 680px; }
.hero-kicker { color: var(--cyan); font-weight: 800; letter-spacing: .18em; margin-bottom: 14px; }
.hero-subtitle { font-size: clamp(20px, 2.4vw, 30px); color: #fff; margin-bottom: 16px; font-weight: 800; }
.hero-description { font-size: 17px; max-width: 650px; color: #e4d8ff; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 18px; margin-top: 28px; }
.hero-note { color: var(--soft); font-size: 13px; }
.hero-visual { position: relative; display: grid; place-items: center; }
.hero-visual::before { content: ""; position: absolute; width: 75%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(37,223,245,.30), rgba(240,107,234,.18) 48%, transparent 72%); filter: blur(8px); }
.hero-visual img { position: relative; z-index: 1; max-height: 540px; object-fit: contain; filter: drop-shadow(0 30px 70px rgba(0,0,0,.45)); }

.highlight-strip { margin-top: -36px; position: relative; z-index: 2; }
.highlight-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-radius: 18px; overflow: hidden; border: 1px solid rgba(191,255,255,.18); box-shadow: 0 20px 60px rgba(0,0,0,.32); }
.highlight-item { padding: 22px; background: rgba(45,0,82,.90); border-right: 1px solid rgba(191,255,255,.11); }
.highlight-item:last-child { border-right: 0; }
.highlight-item h2 { font-size: 18px; margin-bottom: 6px; }
.highlight-item p { margin: 0; font-size: 14px; }

.channel-pills { display: flex; gap: 10px; flex-wrap: wrap; }
.channel-pills a { padding: 10px 15px; border-radius: 999px; border: 1px solid rgba(191,255,255,.13); background: rgba(255,255,255,.04); color: var(--muted); transition: all .2s ease; }
.channel-pills a:hover { color: var(--title); border-color: rgba(37,223,245,.38); background: rgba(37,223,245,.08); transform: translateY(-1px); }

.brand-grid, .app-grid, .activity-grid, .security-grid, .theme-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 54px; align-items: center; }
.content-img { width: 100%; max-height: 560px; object-fit: contain; }
.image-shell { padding: 22px; border-radius: var(--radius); overflow: hidden; }
.feature-points { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 24px 0; }
.feature-point { padding: 16px; border: 1px solid rgba(191,255,255,.11); border-radius: 14px; background: rgba(255,255,255,.04); }
.feature-point strong { display: block; color: var(--title); margin-bottom: 4px; }
.feature-point span { color: var(--soft); font-size: 14px; }

.poster-banner { padding: 0 20px; }
.poster-banner figure { width: min(1040px, 100%); margin: 0 auto; border-radius: 26px; padding: 12px; overflow: hidden; }
.poster-banner img { width: 100%; height: auto; object-fit: contain; border-radius: 18px; }

.game-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.game-card { border-radius: 18px; overflow: hidden; transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease; }
.game-card:hover { transform: translateY(-6px); border-color: rgba(37,223,245,.34); box-shadow: 0 24px 54px rgba(37,223,245,.13); }
.game-card img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; background: rgba(255,255,255,.04); }
.game-card-body { padding: 18px; }
.game-card h3 { font-size: 18px; }
.game-card p { font-size: 14px; min-height: 72px; }
.game-card a { color: var(--cyan); font-weight: 800; font-size: 14px; }

.info-grid { display: grid; gap: 18px; }
.four-col { grid-template-columns: repeat(4, 1fr); }
.three-col { grid-template-columns: repeat(3, 1fr); }
.info-card { padding: 24px; border-radius: 18px; }
.card-number { color: var(--cyan); font-weight: 900; letter-spacing: .14em; display: inline-block; margin-bottom: 18px; }
.info-card p { margin-bottom: 0; font-size: 15px; }

.guide-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.guide-card { padding: 26px; border-radius: 18px; }
.guide-card ul { margin: 18px 0 0; padding-left: 20px; color: var(--muted); }
.guide-card li { margin-bottom: 8px; }

.activity-card { border-radius: 22px; overflow: hidden; }
.activity-card img { width: 100%; max-height: 310px; object-fit: contain; background: rgba(255,255,255,.03); }
.activity-copy { padding: 24px; }
.activity-copy h3 { font-size: 24px; }

.news-list { display: grid; gap: 12px; }
.news-item { display: grid; grid-template-columns: auto 1fr auto; gap: 18px; align-items: center; padding: 18px 20px; border-bottom: 1px solid rgba(191,255,255,.10); }
.news-date { color: var(--cyan); font-weight: 800; font-size: 13px; }
.news-item h3 { font-size: 18px; margin: 0; }
.news-item p { margin: 2px 0 0; font-size: 14px; }

.security-list { display: grid; gap: 14px; }
.security-item { display: grid; grid-template-columns: 42px 1fr; gap: 14px; padding: 18px; border-radius: 14px; border: 1px solid rgba(191,255,255,.10); background: rgba(255,255,255,.035); }
.security-item b { width: 42px; height: 42px; border-radius: 12px; background: rgba(37,223,245,.10); display: grid; place-items: center; color: var(--cyan); }
.security-item h3 { font-size: 18px; }
.security-item p { margin: 0; font-size: 14px; }

.review-grid { display: grid; gap: 18px; }
.review-card { margin: 0; padding: 24px; border-radius: 18px; background: rgba(60,0,100,.46); border: 1px solid rgba(191,255,255,.13); box-shadow: var(--shadow); }
.review-card p { color: #efe8ff; font-size: 15px; }
.review-card footer { color: var(--cyan); font-size: 13px; font-weight: 800; }

.faq-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 54px; align-items: start; }
.faq-list { display: grid; gap: 12px; }
details { border: 1px solid rgba(191,255,255,.12); border-radius: 14px; background: rgba(60,0,100,.42); overflow: hidden; }
summary { list-style: none; padding: 19px 50px 19px 20px; cursor: pointer; color: var(--title); font-weight: 800; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); color: var(--cyan); font-size: 24px; }
details[open] summary::after { content: "−"; }
details p { padding: 0 20px 20px; margin: 0; }

.responsible-banner { padding: 68px 0; background: linear-gradient(90deg, rgba(37,223,245,.10), rgba(143,123,255,.12), rgba(240,107,234,.10)); border-top: 1px solid rgba(191,255,255,.12); border-bottom: 1px solid rgba(191,255,255,.12); }
.responsible-inner { display: flex; align-items: center; justify-content: space-between; gap: 36px; }
.responsible-inner h2 { margin-bottom: 10px; }
.responsible-inner p { max-width: 780px; margin-bottom: 0; }
.outline-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 20px; border: 1px solid rgba(191,255,255,.34); border-radius: 8px; color: var(--title); white-space: nowrap; }
.outline-btn:hover { border-color: var(--cyan); background: rgba(37,223,245,.08); }

.inner-hero { padding: 90px 0 72px; background: radial-gradient(circle at 80% 20%, rgba(240,107,234,.16), transparent 30%), linear-gradient(180deg, rgba(45,0,82,.76), rgba(22,0,43,.3)); border-bottom: 1px solid rgba(191,255,255,.08); }
.inner-hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 52px; align-items: center; }
.inner-hero h1 { font-size: clamp(40px, 5vw, 66px); }
.hero-lead { max-width: 720px; font-size: 17px; }
.inner-visual { padding: 22px; border-radius: 24px; min-height: 300px; display: grid; place-items: center; }
.inner-visual img { max-height: 440px; object-fit: contain; }
.prose-grid { display: grid; grid-template-columns: 1.35fr .65fr; gap: 28px; align-items: stretch; }
.prose-card, .notice-card { border-radius: 20px; padding: 30px; }
.prose-card h2, .notice-card h2 { font-size: 28px; }
.notice-card { background: linear-gradient(180deg, rgba(37,223,245,.10), rgba(60,0,100,.52)); }
.notice-icon { font-size: 40px; display: block; margin-bottom: 12px; }
.split-content { display: grid; grid-template-columns: 1.15fr .85fr; gap: 44px; align-items: start; }
.step-list { list-style: none; padding: 0; margin: 30px 0 0; display: grid; gap: 15px; }
.step-list li { display: grid; grid-template-columns: 12px 1fr; gap: 14px; align-items: start; }
.step-list li span { width: 12px; height: 12px; border-radius: 50%; margin-top: 7px; background: linear-gradient(135deg, var(--cyan), var(--pink)); box-shadow: 0 0 18px rgba(37,223,245,.35); }
.step-list p { margin: 0; }
.support-panel { padding: 28px; border-radius: 20px; position: sticky; top: 98px; }
.support-panel h2 { font-size: 26px; }

.site-footer { background: #140024; color: #d8c7ff; padding-top: 62px; border-top: 1px solid rgba(191,255,255,.08); }
.footer-grid { width: var(--container); margin: 0 auto; display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 36px; }
.footer-brand img { width: 170px; max-height: 52px; object-fit: contain; margin-bottom: 18px; }
.footer-grid h2 { font-size: 17px; margin-bottom: 16px; }
.footer-grid a { display: block; color: var(--muted); margin: 8px 0; font-size: 14px; }
.footer-grid a:hover { color: var(--cyan); }
.footer-brand p { max-width: 480px; font-size: 14px; }
.footer-bottom { margin-top: 44px; padding: 20px; border-top: 1px solid rgba(191,255,255,.08); text-align: center; }
.footer-bottom p { margin: 0; font-size: 13px; color: var(--soft); }

@media (max-width: 1120px) {
  .desktop-nav { gap: 13px; }
  .desktop-nav a { font-size: 13px; }
  .game-grid { grid-template-columns: repeat(4, 1fr); }
  .four-col { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  :root { --container: min(100% - 30px, 760px); }
  .desktop-nav { display: none; }
  .header-inner { min-height: 68px; gap: 14px; }
  .header-actions { margin-left: auto; }
  .hero-grid, .brand-grid, .app-grid, .activity-grid, .security-grid, .theme-grid, .inner-hero-grid, .prose-grid, .split-content, .faq-layout { grid-template-columns: 1fr; }
  .hero-grid { padding: 72px 0 110px; text-align: center; }
  .hero-copy { margin: 0 auto; }
  .hero-actions { justify-content: center; }
  .hero-visual img { max-height: 400px; }
  .highlight-grid { grid-template-columns: repeat(2, 1fr); }
  .highlight-item:nth-child(2) { border-right: 0; }
  .highlight-item:nth-child(-n+2) { border-bottom: 1px solid rgba(191,255,255,.11); }
  .game-grid { grid-template-columns: repeat(3, 1fr); }
  .guide-grid, .three-col { grid-template-columns: 1fr 1fr; }
  .responsible-inner { align-items: flex-start; flex-direction: column; }
  .support-panel { position: static; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-grid > div:last-child { grid-column: 2 / 4; }
}

@media (max-width: 640px) {
  :root { --container: min(100% - 22px, 560px); }
  .section-space { padding: 64px 0; }
  .brand img { width: 118px; max-height: 38px; }
  .header-cta { min-height: 36px; padding: 0 11px; font-size: 12px; }
  .menu-toggle { width: 38px; height: 38px; }
  .header-actions { gap: 7px; }
  .drawer-nav { grid-template-columns: 1fr; }
  .home-hero { min-height: auto; }
  .hero-grid { padding-top: 60px; }
  .hero-description { font-size: 15px; }
  .hero-visual img { max-height: 300px; }
  .highlight-strip { margin-top: -28px; }
  .highlight-grid { grid-template-columns: 1fr; }
  .highlight-item { border-right: 0; border-bottom: 1px solid rgba(191,255,255,.11); }
  .highlight-item:last-child { border-bottom: 0; }
  .feature-points, .four-col, .guide-grid, .three-col { grid-template-columns: 1fr; }
  .game-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .game-card-body { padding: 14px; }
  .game-card p { min-height: auto; }
  .news-item { grid-template-columns: 1fr; gap: 4px; }
  .news-item .text-link { margin-top: 6px; }
  .inner-hero { padding: 66px 0 54px; }
  .inner-visual { min-height: 220px; }
  .prose-card, .notice-card, .support-panel { padding: 22px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-grid > div:last-child { grid-column: auto; }
  .emoji-field span:nth-child(n+7) { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}