/* 如家飞飞 — shared site styles (UTF-8) */
:root {
  --bg0: #070b16;
  --bg1: #0c1224;
  --bg2: #121a33;
  --card: rgba(18, 26, 51, 0.72);
  --card-solid: #121a33;
  --line: rgba(140, 170, 255, 0.18);
  --text: #e8eefc;
  --muted: #9aa8c7;
  --accent: #5b8cff;
  --accent2: #7c5cff;
  --gold: #f0c36a;
  --ok: #3dd68c;
  --danger: #ff6b7a;
  --glow: 0 0 40px rgba(91, 140, 255, 0.25);
  --radius: 22px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg0);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
.container { width: min(1180px, calc(100% - 2rem)); margin-inline: auto; }

/* ambient background */
.bg-stage {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background:
    radial-gradient(900px 500px at 12% -10%, rgba(91, 140, 255, 0.28), transparent 60%),
    radial-gradient(700px 480px at 90% 8%, rgba(124, 92, 255, 0.22), transparent 55%),
    radial-gradient(600px 420px at 50% 110%, rgba(240, 195, 106, 0.12), transparent 50%),
    linear-gradient(180deg, #070b16 0%, #0a1020 45%, #070b16 100%);
}
.bg-grid {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.28;
  background-image:
    linear-gradient(rgba(140,170,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140,170,255,0.06) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
}
.orb {
  position: fixed; border-radius: 50%; filter: blur(60px); opacity: 0.35; z-index: -1; pointer-events: none;
  animation: floaty 12s ease-in-out infinite;
}
.orb.a { width: 280px; height: 280px; left: -60px; top: 30%; background: #5b8cff; }
.orb.b { width: 220px; height: 220px; right: -40px; top: 55%; background: #7c5cff; animation-delay: -4s; }

@keyframes floaty {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-28px) scale(1.05); }
}

/* top nav */
.topbar {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(16px) saturate(1.2);
  background: rgba(7, 11, 22, 0.72);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: 0.85rem 0;
}
.brand {
  display: flex; align-items: center; gap: 0.75rem; font-weight: 700; letter-spacing: 0.02em;
}
.brand img {
  width: 42px; height: 42px; border-radius: 12px; object-fit: cover;
  box-shadow: 0 0 0 1px var(--line), var(--glow);
}
.brand span { font-size: 1.05rem; }
.nav-links { display: flex; align-items: center; gap: 0.35rem; flex-wrap: wrap; }
.nav-links a {
  padding: 0.45rem 0.9rem; border-radius: 999px; color: var(--muted);
  transition: 0.25s ease; font-size: 0.95rem;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--text); background: rgba(91, 140, 255, 0.12);
}
.nav-cta {
  background: linear-gradient(135deg, var(--accent), var(--accent2)) !important;
  color: #fff !important; font-weight: 600;
  box-shadow: 0 8px 24px rgba(91, 140, 255, 0.35);
}
.nav-cta:hover { filter: brightness(1.08); transform: translateY(-1px); }

/* hero */
.hero {
  padding: 4.5rem 0 2.5rem;
  display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 2.5rem; align-items: center;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.35rem 0.85rem; border-radius: 999px;
  border: 1px solid var(--line); background: rgba(91,140,255,0.08);
  color: var(--gold); font-size: 0.85rem; font-weight: 600; margin-bottom: 1.1rem;
}
.eyebrow .dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--ok);
  box-shadow: 0 0 12px var(--ok); animation: pulse 1.8s ease infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.85); }
}
.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 1rem;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(120deg, #9ec1ff, #c4b5ff 45%, #f0c36a);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-lead { color: var(--muted); font-size: 1.05rem; max-width: 40rem; margin-bottom: 1.6rem; }
.hero-lead strong { color: var(--gold); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1.4rem; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.45rem;
  padding: 0.85rem 1.35rem; border-radius: 999px; font-weight: 650;
  border: 1px solid transparent; transition: 0.25s ease; cursor: pointer;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; box-shadow: 0 12px 30px rgba(91,140,255,0.35);
}
.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.06); }
.btn-ghost {
  background: rgba(255,255,255,0.03); border-color: var(--line); color: var(--text);
}
.btn-ghost:hover { background: rgba(91,140,255,0.12); border-color: rgba(91,140,255,0.35); }
.hero-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tag {
  font-size: 0.8rem; color: var(--muted); padding: 0.3rem 0.7rem;
  border-radius: 999px; border: 1px solid var(--line); background: rgba(255,255,255,0.03);
}
.hero-visual { position: relative; }
.hero-frame {
  position: relative; border-radius: 28px; overflow: hidden;
  border: 1px solid var(--line); box-shadow: var(--shadow), var(--glow);
  background: var(--card-solid);
}
.hero-frame img { width: 100%; aspect-ratio: 16/11; object-fit: cover; }
.hero-badge {
  position: absolute; left: 1rem; bottom: 1rem;
  padding: 0.65rem 0.95rem; border-radius: 16px;
  background: rgba(7,11,22,0.72); backdrop-filter: blur(12px);
  border: 1px solid var(--line); font-size: 0.85rem;
}
.hero-badge b { color: var(--gold); }

/* glass panels */
.panel {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); backdrop-filter: blur(18px);
  box-shadow: var(--shadow); padding: 1.5rem;
}
.section { padding: 1.25rem 0 2.5rem; }
.section-head {
  display: flex; align-items: end; justify-content: space-between;
  gap: 1rem; margin-bottom: 1.25rem; flex-wrap: wrap;
}
.section-head h2 {
  font-size: clamp(1.35rem, 2.5vw, 1.85rem); letter-spacing: -0.01em;
}
.section-head p { color: var(--muted); font-size: 0.95rem; }

/* notice / activity teasers */
.notice-grid {
  display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 1rem;
}
.notice-card {
  position: relative; overflow: hidden;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.notice-card:hover { transform: translateY(-4px); border-color: rgba(91,140,255,0.4); }
.notice-card h3 { font-size: 1.1rem; margin-bottom: 0.55rem; }
.notice-card p { color: var(--muted); font-size: 0.95rem; }
.notice-card .chip {
  display: inline-block; margin-bottom: 0.75rem;
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.04em;
  padding: 0.2rem 0.55rem; border-radius: 999px;
}
.chip.warn { background: rgba(240,195,106,0.15); color: var(--gold); }
.chip.hot { background: rgba(255,107,122,0.15); color: var(--danger); }
.notice-card a.more {
  display: inline-flex; margin-top: 0.9rem; color: #9ec1ff; font-weight: 600; font-size: 0.9rem;
}
.notice-card a.more:hover { color: #fff; }

/* version cards */
.version-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem;
}
.version-card {
  display: flex; flex-direction: column; gap: 1rem;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
  overflow: hidden;
}
.version-card:hover {
  transform: translateY(-8px);
  border-color: rgba(124, 92, 255, 0.45);
  box-shadow: 0 30px 70px rgba(0,0,0,0.5), 0 0 40px rgba(124,92,255,0.18);
}
.version-media {
  display: grid; gap: 0.65rem;
}
.version-media img {
  width: 100%; border-radius: 16px; border: 1px solid var(--line);
  background: #0a1020;
}
.version-media .cover { aspect-ratio: 16/10; object-fit: cover; }
.version-media .thumb { aspect-ratio: 16/9; object-fit: cover; max-height: 140px; }
.version-card h3 { font-size: 1.15rem; line-height: 1.35; }
.version-card .desc { color: var(--muted); font-size: 0.92rem; flex: 1; }
.version-card .desc strong { color: var(--text); }
.feature-list {
  display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0.4rem 0 0.2rem;
}
.feature-list span {
  font-size: 0.75rem; color: var(--muted);
  padding: 0.22rem 0.55rem; border-radius: 999px;
  background: rgba(255,255,255,0.04); border: 1px solid var(--line);
}
.feature-list span.hl { color: var(--gold); border-color: rgba(240,195,106,0.35); background: rgba(240,195,106,0.08); }
.download-row { display: flex; flex-direction: column; gap: 0.55rem; margin-top: auto; }
.btn-dl {
  text-align: center; padding: 0.8rem 1rem; border-radius: 14px; font-weight: 700;
  background: linear-gradient(135deg, #2ecc87, #1fad6d); color: #04140c;
  transition: 0.25s ease;
}
.btn-dl:hover { filter: brightness(1.08); transform: translateY(-1px); }
.btn-dl.alt {
  background: rgba(255,255,255,0.04); color: var(--text); border: 1px solid var(--line);
}
.btn-dl.alt:hover { background: rgba(91,140,255,0.12); border-color: rgba(91,140,255,0.4); }

/* CTA strip */
.cta-strip {
  margin: 0.5rem 0 2rem;
  padding: 1.6rem 1.8rem;
  border-radius: 24px;
  background:
    linear-gradient(120deg, rgba(91,140,255,0.18), rgba(124,92,255,0.12) 45%, rgba(240,195,106,0.08)),
    rgba(18,26,51,0.7);
  border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
}
.cta-strip h2 { font-size: 1.35rem; margin-bottom: 0.25rem; }
.cta-strip p { color: var(--muted); font-size: 0.95rem; }

/* QQ dock */
.qq-dock {
  position: fixed; right: 18px; bottom: 18px; z-index: 60;
  width: min(250px, calc(100vw - 2rem));
}
.qq-panel {
  background: rgba(12,18,36,0.9); border: 1px solid var(--line);
  border-radius: 20px; padding: 1rem; backdrop-filter: blur(16px);
  box-shadow: var(--shadow); transform-origin: bottom right;
  transition: 0.28s ease;
}
.qq-panel.collapsed { opacity: 0; pointer-events: none; transform: translateY(12px) scale(0.96); }
.qq-panel h3 { font-size: 0.95rem; margin-bottom: 0.7rem; color: var(--gold); }
.qq-panel a {
  display: block; padding: 0.65rem 0.75rem; margin-bottom: 0.45rem;
  border-radius: 12px; background: rgba(91,140,255,0.1);
  border: 1px solid transparent; color: var(--text); font-size: 0.85rem;
  transition: 0.2s ease;
}
.qq-panel a:last-child { margin-bottom: 0; }
.qq-panel a:hover { border-color: rgba(91,140,255,0.4); background: rgba(91,140,255,0.18); }
.qq-toggle {
  margin-left: auto; display: flex; margin-top: 0.65rem;
  width: 54px; height: 54px; border-radius: 50%;
  align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; border: none; cursor: pointer; font-weight: 800;
  box-shadow: 0 12px 30px rgba(91,140,255,0.4);
}
.qq-dock-inner { display: flex; flex-direction: column; align-items: flex-end; }

/* footer */
.footer {
  margin-top: 1rem; padding: 2rem 0 2.5rem;
  border-top: 1px solid var(--line);
}
.footer-links {
  display: flex; flex-wrap: wrap; gap: 0.75rem 1.25rem; margin-bottom: 1rem;
}
.footer-links a { color: var(--muted); font-size: 0.92rem; }
.footer-links a:hover { color: #9ec1ff; }
.footer-copy { color: #6f7c9b; font-size: 0.85rem; }

/* reveal */
.reveal { opacity: 0; transform: translateY(18px); transition: 0.7s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }

/* activity page */
.page-hero { padding: 3rem 0 1.5rem; }
.page-hero h1 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); margin-bottom: 0.5rem; }
.page-hero p { color: var(--muted); }
.back-link {
  display: inline-flex; align-items: center; gap: 0.35rem;
  color: #9ec1ff; font-weight: 600; margin-bottom: 1.2rem;
}
.back-link:hover { color: #fff; }
.activity-meta {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.75rem; margin: 1.2rem 0;
}
.meta-item {
  background: rgba(255,255,255,0.03); border: 1px solid var(--line);
  border-radius: 14px; padding: 0.9rem 1rem;
}
.meta-item strong { display: block; font-size: 0.8rem; color: var(--muted); margin-bottom: 0.25rem; }
.activity-body {
  background: rgba(255,107,122,0.06); border: 1px solid rgba(255,107,122,0.2);
  border-radius: 16px; padding: 1.2rem 1.3rem; margin-top: 0.5rem;
}
.activity-body p { margin-bottom: 0.8rem; color: var(--muted); }
.activity-body .hl { color: var(--gold); font-weight: 700; }
.warning-box {
  margin-top: 0.8rem; padding: 0.95rem 1.05rem; border-radius: 14px;
  background: rgba(240,195,106,0.1); border: 1px solid rgba(240,195,106,0.35);
  color: #f3d79a; font-weight: 600;
}
.links-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; margin-top: 1rem;
}
.links-grid a {
  display: block; text-align: center; padding: 1rem;
  border-radius: 14px; border: 1px solid var(--line);
  background: rgba(255,255,255,0.03); color: #9ec1ff; font-weight: 650;
  transition: 0.25s ease;
}
.links-grid a:hover {
  background: linear-gradient(135deg, rgba(91,140,255,0.25), rgba(124,92,255,0.2));
  color: #fff; border-color: transparent; transform: translateY(-2px);
}

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; padding-top: 2.5rem; }
  .hero-visual { order: -1; }
  .version-grid { grid-template-columns: 1fr; }
  .notice-grid { grid-template-columns: 1fr; }
  .activity-meta { grid-template-columns: 1fr 1fr; }
  .links-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-links a:not(.nav-cta) { display: none; }
  .activity-meta, .links-grid { grid-template-columns: 1fr; }
  .qq-dock { right: 12px; bottom: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important; transition: none !important; scroll-behavior: auto !important;
  }
}

/* —— 查看门槛提示 —— */
.dev-guard-tip {
  position: fixed; left: 50%; bottom: 28px; z-index: 9999;
  transform: translateX(-50%) translateY(12px);
  max-width: min(90vw, 420px);
  padding: 0.7rem 1.1rem;
  border-radius: 999px;
  background: rgba(12, 18, 36, 0.92);
  border: 1px solid rgba(140, 170, 255, 0.28);
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease, transform 0.35s ease;
}
.dev-guard-tip.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* —— 桌面端光晕 / 轨迹（触控与 reduced-motion 由 JS 关闭） —— */
.cursor-glow,
.cursor-trail {
  position: fixed; top: 0; left: 0; z-index: 40;
  pointer-events: none; opacity: 0;
  border-radius: 50%;
  will-change: transform, opacity;
  transition: opacity 0.25s ease;
}
.cursor-glow {
  width: 220px; height: 220px;
  background: radial-gradient(circle, rgba(91,140,255,0.22) 0%, rgba(124,92,255,0.1) 35%, transparent 70%);
  mix-blend-mode: screen;
}
.cursor-trail {
  width: 18px; height: 18px;
  background: radial-gradient(circle, rgba(240,195,106,0.55) 0%, rgba(91,140,255,0.25) 45%, transparent 70%);
  filter: blur(0.5px);
  box-shadow: 0 0 18px rgba(91,140,255,0.35);
}
.cursor-glow.on,
.cursor-trail.on { opacity: 1; }

@media (pointer: coarse), (max-width: 768px) {
  .cursor-glow, .cursor-trail { display: none !important; }
}
@media (prefers-reduced-motion: reduce) {
  .cursor-glow, .cursor-trail, .dev-guard-tip { display: none !important; }
}