/* ═══════════════════════════════════════════════════════════
   广中小悠 · v5「星汇」
   表达方式：空间汇聚 —— 一张正在生长的星图。
   没有成员点名册（成员是匿名星轨 + 虚位以待），
   没有功能清单（一次接力现场 + 故意未亮的暗星）。
   品牌底线不变：中性实心按钮（暗底象牙白）、鸢尾紫只做光效。
   ═══════════════════════════════════════════════════════════ */

:root {
  --ink: #17161F;
  --bg: #0B0A12;
  --bg-soft: #100E1B;
  --text-1: #ECEAF6;
  --text-2: #A9A5C2;
  --text-3: #6E6A8C;
  --iris: #9B7BF4;
  --iris-rgb: 155, 123, 244;
  --pink: #F0A3C6;
  --mint: #2DD4A7;
  --line: rgba(236, 234, 246, 0.1);
  --line-soft: rgba(236, 234, 246, 0.06);
  --ivory: #F2F0FA;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --radius: 22px;
  --font: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, Inter, sans-serif;
  --glow-iris: 0 0 24px rgba(var(--iris-rgb), 0.28), 0 0 60px rgba(var(--iris-rgb), 0.14);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-1);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
::selection { background: rgba(var(--iris-rgb), 0.32); color: #fff; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid rgba(var(--iris-rgb), 0.7); outline-offset: 2px; border-radius: 8px; }
section { scroll-margin-top: 84px; }
.ic { width: 1.15em; height: 1.15em; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.ic-lg { width: 1.6em; height: 1.6em; }

.progress-hairline { position: fixed; inset: 0 0 auto 0; height: 2px; z-index: 120; pointer-events: none; }
.progress-hairline span { display: block; height: 100%; background: linear-gradient(90deg, var(--ivory), var(--iris)); transform: scaleX(0); transform-origin: 0 50%; }

/* ── 导航 ──────────────────────────────────────────────── */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  background: rgba(11, 10, 18, 0.66);
  -webkit-backdrop-filter: blur(18px) saturate(1.3);
  backdrop-filter: blur(18px) saturate(1.3);
  border-bottom: 1px solid var(--line-soft);
  transition: box-shadow 0.35s var(--ease), background 0.35s var(--ease);
}
.nav.scrolled { background: rgba(11, 10, 18, 0.86); box-shadow: 0 12px 34px rgba(0, 0, 0, 0.4); }
.nav-inner { max-width: 1180px; margin: 0 auto; padding: 0 28px; height: 62px; display: flex; align-items: center; gap: 26px; }
.brand { display: flex; align-items: center; gap: 10px; flex: none; }
.brand-emblem { width: 28px; height: 28px; }
.brand-emblem.wake { animation: emblemWake 1.05s var(--ease); }
@keyframes emblemWake {
  0% { transform: rotate(0deg) scale(1); }
  45% { transform: rotate(384deg) scale(1.3); }
  70% { transform: rotate(372deg) scale(0.92); }
  100% { transform: rotate(360deg) scale(1); }
}
.brand-name { font-size: 17px; font-weight: 800; letter-spacing: 0.02em; }
.brand-badge { font-size: 11px; color: var(--text-2); border: 1px solid var(--line); border-radius: 999px; padding: 2.5px 10px; letter-spacing: 0.06em; white-space: nowrap; }
.nav-links { display: flex; gap: 4px; margin-left: auto; }
.nav-links a { font-size: 13.5px; font-weight: 600; color: var(--text-2); padding: 7px 13px; border-radius: 999px; transition: color 0.2s, background 0.3s var(--ease); }
.nav-links a:hover { color: var(--text-1); background: rgba(236, 234, 246, 0.07); }
.nav-links a.is-active { color: var(--iris); background: rgba(var(--iris-rgb), 0.13); }
.btn-nav { margin-left: 4px; }
@media (max-width: 860px) { .brand-badge, .nav-links { display: none; } .btn-nav { margin-left: auto; } }

/* ── 按钮：暗底象牙白实心锚点 ──────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 14.5px; font-weight: 700; letter-spacing: 0.01em;
  border: none; border-radius: 16px; padding: 12px 22px; cursor: pointer;
  transition: transform 0.3s var(--ease), background 0.25s, box-shadow 0.35s var(--ease), border-color 0.25s, opacity 0.25s;
  white-space: nowrap;
}
.btn-lg { padding: 15px 26px; font-size: 15.5px; border-radius: 18px; }
.btn-ivory { background: var(--ivory); color: var(--ink); box-shadow: 0 6px 24px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(236, 234, 246, 0.08); }
.btn-ivory:hover { background: #ffffff; transform: translateY(-2px); box-shadow: 0 10px 32px rgba(0, 0, 0, 0.5), var(--glow-iris); }
.btn-ghost { background: rgba(236, 234, 246, 0.05); color: var(--text-1); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: rgba(236, 234, 246, 0.34); background: rgba(236, 234, 246, 0.09); transform: translateY(-2px); }
.btn-disabled { opacity: 0.42; cursor: not-allowed; transform: none !important; }
.btn:active { transform: translateY(0) scale(0.985); }
.btn-meta { font-size: 11px; font-weight: 600; color: rgba(23, 22, 31, 0.55); border-left: 1px solid rgba(23, 22, 31, 0.18); padding-left: 10px; margin-left: 2px; letter-spacing: 0.02em; }

/* ── 状态点 ────────────────────────────────────────────── */
.state-dot { position: relative; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--iris); flex: none; }
.state-dot::after { content: ""; position: absolute; inset: -3.5px; border-radius: 50%; border: 1.5px solid rgba(var(--iris-rgb), 0.5); animation: dotBreath 2.6s var(--ease) infinite; }
.state-dot-live { background: var(--mint); }
.state-dot-live::after { border-color: rgba(45, 212, 167, 0.45); }
@keyframes dotBreath { 0%, 100% { transform: scale(0.7); opacity: 0.9; } 50% { transform: scale(1.25); opacity: 0.25; } }

/* ── 文字部件 ──────────────────────────────────────────── */
.eyebrow { display: inline-flex; align-items: center; gap: 9px; font-size: 12.5px; font-weight: 700; letter-spacing: 0.22em; color: var(--text-2); }
.grad { background: linear-gradient(100deg, #C4B2FF 0%, var(--iris) 42%, var(--pink) 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; }

/* ── Hero ──────────────────────────────────────────────── */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; overflow: hidden; }
.sky { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-veil { position: absolute; inset: auto 0 0 0; height: 180px; background: linear-gradient(180deg, transparent, var(--bg)); pointer-events: none; }
.hero-inner {
  position: relative; z-index: 2; width: 100%; max-width: 1220px; margin: 0 auto; padding: 130px 28px 90px;
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 40px; align-items: center;
}
.hero-copy { max-width: 560px; }
.hero-title { font-size: clamp(40px, 5.4vw, 66px); line-height: 1.18; font-weight: 800; letter-spacing: 0.01em; margin: 18px 0 20px; }
.hero-title .grad { white-space: nowrap; }
.spark { font-style: normal; font-size: 0.42em; vertical-align: 0.62em; margin-left: 10px; color: var(--pink); display: inline-block; cursor: pointer; animation: sparkTwinkle 2.8s var(--ease) infinite; }
@keyframes sparkTwinkle { 0%, 100% { opacity: 1; transform: scale(1) rotate(0deg); } 50% { opacity: 0.45; transform: scale(0.82) rotate(18deg); } }
.spark.burst { animation: sparkBurst 0.95s var(--ease); }
@keyframes sparkBurst {
  0% { transform: scale(1) rotate(0deg); opacity: 1; }
  30% { transform: scale(2) rotate(150deg); opacity: 1; }
  55% { transform: scale(0.6) rotate(260deg); opacity: 0.4; }
  80% { transform: scale(1.6) rotate(330deg); opacity: 1; }
  100% { transform: scale(1) rotate(360deg); }
}
.hero-sub { font-size: 16px; color: var(--text-2); max-width: 520px; }
.hero-sub b { color: var(--text-1); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.hero-trust { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 26px; }
.hero-trust li { font-size: 12.5px; color: var(--text-3); display: flex; align-items: center; gap: 7px; }
.hero-trust li::before { content: ""; width: 4px; height: 4px; border-radius: 50%; background: rgba(var(--iris-rgb), 0.75); }

/* ── 汇聚仪 ────────────────────────────────────────────── */
.stage-wrap { display: flex; flex-direction: column; align-items: center; gap: 14px; }
.stage { position: relative; width: min(100%, 520px); aspect-ratio: 1; --r1: 128px; --r2: 196px; }
.stage-halo {
  position: absolute; left: 50%; top: 50%; width: 78%; height: 78%; translate: -50% -50%; border-radius: 50%;
  background: radial-gradient(closest-side, rgba(var(--iris-rgb), 0.22), rgba(240, 163, 198, 0.08) 55%, transparent 75%);
  animation: haloBreath 7s var(--ease) infinite;
}
@keyframes haloBreath { 0%, 100% { opacity: 0.75; transform: scale(1); } 50% { opacity: 1; transform: scale(1.06); } }
.ring { position: absolute; inset: 0; border-radius: 50%; animation: orbitSpin var(--T, 70s) linear infinite; }
.ring-1 { border: 1px dashed rgba(236, 234, 246, 0.14); --T: 76s; }
.ring-2 { border: 1px dashed rgba(236, 234, 246, 0.09); --T: 118s; }
.ring-rev { animation-direction: reverse; }
@keyframes orbitSpin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.chip { position: absolute; left: 50%; top: 50%; width: 0; height: 0; transform: rotate(var(--a)) translate(var(--r)) rotate(calc(-1 * var(--a))); }
.chip-c { display: block; animation: orbitSpinRev var(--T, 70s) linear infinite; }
.ring-rev .chip-c { animation-name: orbitSpin; }
@keyframes orbitSpinRev { from { transform: rotate(0deg); } to { transform: rotate(-360deg); } }
.chip-v {
  display: grid; place-items: center; width: 48px; height: 48px; margin: -24px 0 0 -24px;
  border-radius: 50%; overflow: hidden; position: relative;
  background: #1B1930; border: 1px solid rgba(236, 234, 246, 0.28);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.5), 0 0 0 0 rgba(var(--iris-rgb), 0);
  transition: box-shadow 0.4s var(--ease);
}
.chip-v::after { content: ""; position: absolute; inset: 0; border-radius: 50%; box-shadow: inset 0 -8px 14px rgba(var(--iris-rgb), 0.24); }
.chip-v img { width: 100%; height: 100%; object-fit: cover; }
.chip-v.q { font-size: 19px; font-weight: 800; color: var(--iris); border-style: dashed; cursor: pointer; animation: qBreath 3.2s var(--ease) infinite; transition: border-color 0.3s, box-shadow 0.4s var(--ease); }
.chip-v.q:hover { border-color: rgba(var(--iris-rgb), 0.8); box-shadow: 0 0 20px rgba(var(--iris-rgb), 0.45); }
.chip-v.revealed {
  cursor: default; border-style: solid; border-color: rgba(var(--iris-rgb), 0.75); animation: none;
  font-size: 11.5px; font-weight: 700; line-height: 1.25; letter-spacing: 0.06em; padding: 4px; text-align: center;
  color: var(--text-1); background: radial-gradient(circle at 50% 30%, rgba(var(--iris-rgb), 0.4), #1B1930 70%);
  box-shadow: 0 0 24px rgba(var(--iris-rgb), 0.45);
}
@keyframes qBreath { 0%, 100% { opacity: 0.62; } 50% { opacity: 1; } }

.nucleus {
  position: absolute; left: 50%; top: 50%; translate: -50% -50%;
  width: 148px; height: 148px; border-radius: 50%;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
  background: radial-gradient(circle at 50% 32%, rgba(var(--iris-rgb), 0.34), rgba(27, 25, 48, 0.9) 62%);
  border: 1px solid rgba(var(--iris-rgb), 0.5);
  box-shadow: var(--glow-iris), inset 0 0 30px rgba(var(--iris-rgb), 0.18);
  text-align: center;
}
.nucleus-core { position: absolute; inset: -26px; border-radius: 50%; border: 1px solid rgba(var(--iris-rgb), 0.22); animation: corePulse 3.4s var(--ease) infinite; }
@keyframes corePulse { 0%, 100% { transform: scale(0.94); opacity: 0.6; } 50% { transform: scale(1.05); opacity: 1; } }
.nucleus-core.urgent { animation: coreUrgent 0.8s var(--ease) infinite; border-color: rgba(var(--iris-rgb), 0.6); box-shadow: 0 0 26px rgba(var(--iris-rgb), 0.45); }
@keyframes coreUrgent { 0%, 100% { transform: scale(0.92); opacity: 0.55; } 50% { transform: scale(1.15); opacity: 1; } }
.nucleus-core.nudge { animation: coreNudge 0.7s var(--ease); }
@keyframes coreNudge { 0% { transform: scale(1); } 30% { transform: scale(0.88); } 62% { transform: scale(1.09); } 100% { transform: scale(1); } }
.nucleus b { font-size: 19px; font-weight: 800; letter-spacing: 0.14em; }
.nucleus i { font-style: normal; font-size: 11px; letter-spacing: 0.3em; color: var(--text-2); }
.stage-cap { font-size: 12.5px; color: var(--text-2); display: flex; align-items: center; gap: 9px; letter-spacing: 0.04em; }
.stage-cap em { font-style: normal; color: var(--pink); }

/* ── 章节骨架 ──────────────────────────────────────────── */
.section { position: relative; padding: 110px 28px; max-width: 1180px; margin: 0 auto; }
.band { max-width: none; background: var(--bg-soft); }
.band::before, .band::after {
  content: ""; position: absolute; border-radius: 50%; filter: blur(90px); pointer-events: none; opacity: 0.5;
}
.band::before { width: 480px; height: 480px; left: -160px; top: -120px; background: rgba(var(--iris-rgb), 0.12); }
.band::after { width: 420px; height: 420px; right: -140px; bottom: -140px; background: rgba(240, 163, 198, 0.08); }
.section-head { max-width: 660px; margin-bottom: 54px; }
.section-head h2 { font-size: clamp(28px, 3.6vw, 42px); line-height: 1.3; font-weight: 800; margin: 16px 0 14px; }
.section-sub { font-size: 15.5px; color: var(--text-2); }

/* ── 星群记事 · 任务接力现场 ───────────────────────────── */
.scene { position: relative; height: clamp(430px, 44vw, 560px); margin-bottom: 30px; }
.scene-wires { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.wire { fill: none; stroke: rgba(var(--iris-rgb), 0.55); stroke-width: 2; stroke-linecap: round; stroke-dasharray: 1; stroke-dashoffset: 1; opacity: 0.85; }
.scene.play .wire { transition: stroke-dashoffset 1s var(--ease); }
.scene.play .w1 { transition-delay: 0.1s; stroke-dashoffset: 0; }
.scene.play .w2 { transition-delay: 1.0s; stroke-dashoffset: 0; }
.scene.play .w3 { transition-delay: 1.9s; stroke-dashoffset: 0; }
.scene.play .w4 { transition-delay: 2.8s; stroke-dashoffset: 0; }

.node { position: absolute; transform: translate(-50%, -50%); }
.chip-k { display: block; font-size: 12px; font-weight: 700; letter-spacing: 0.1em; color: var(--text-2); opacity: 0; transform: translateY(8px); transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); }
.scene.play .chip-k { opacity: 1; transform: none; }
.scene.play .task-chip .chip-k { transition-delay: 0.15s; }
.scene.play .sn-1 .chip-k { transition-delay: 1.15s; }
.scene.play .sn-2 .chip-k { transition-delay: 2.05s; }
.scene.play .sn-3 .chip-k { transition-delay: 2.95s; }
.scene.play .art-node .chip-k { transition-delay: 3.9s; }

.task-chip {
  width: 240px; padding: 14px 18px; border-radius: 16px; transform: translate(0, -50%);
  background: rgba(236, 234, 246, 0.06); border: 1px solid var(--line);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.35);
}
.task-chip p { font-size: 13.5px; color: var(--text-1); line-height: 1.55; margin-top: 6px; }
.task-chip p b { color: var(--iris); }

.star-node { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.sn-dot { position: relative; width: 18px; height: 18px; border-radius: 50%; background: rgb(var(--g)); opacity: 0; transform: scale(0.4); box-shadow: 0 0 18px rgba(var(--g), 0.75), 0 0 44px rgba(var(--g), 0.3); }
.scene.play .sn-dot { animation: snIgnite 0.9s var(--ease) forwards, snFloat 5s var(--ease) 2s infinite; }
.scene.play .sn-1 .sn-dot { animation-delay: 0.95s, 2s; }
.scene.play .sn-2 .sn-dot { animation-delay: 1.85s, 2.4s; }
.scene.play .sn-2 .sn-dot-b { animation-delay: 2.15s, 2.9s; }
.scene.play .sn-3 .sn-dot { animation-delay: 2.75s, 3.3s; }
@keyframes snIgnite { 0% { opacity: 0; transform: scale(0.4); } 60% { opacity: 1; transform: scale(1.35); } 100% { opacity: 1; transform: scale(1); } }
@keyframes snFloat { 0%, 100% { translate: 0 0; } 50% { translate: 0 -7px; } }
.sn-dot::after { content: ""; position: absolute; inset: -9px; border-radius: 50%; border: 1.5px solid rgba(var(--g), 0.55); animation: ringOut 2.8s var(--ease) infinite; }
@keyframes ringOut { 0% { transform: scale(0.55); opacity: 0.9; } 100% { transform: scale(1.9); opacity: 0; } }
.sn-2 { flex-direction: row; gap: 6px; }
.sn-2 .chip-k { position: absolute; top: 100%; margin-top: 10px; white-space: nowrap; }

.art-node { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.art-star { font-size: 44px; line-height: 1; color: var(--pink); opacity: 0; transform: scale(0.3) rotate(-40deg); text-shadow: 0 0 26px rgba(240, 163, 198, 0.85), 0 0 70px rgba(240, 163, 198, 0.4); }
.scene.play .art-star { animation: starIgnite 1.1s var(--ease) 3.55s forwards, snFloat 5.5s var(--ease) 4.8s infinite; }
@keyframes starIgnite { 0% { opacity: 0; transform: scale(0.3) rotate(-40deg); } 55% { opacity: 1; transform: scale(1.5) rotate(8deg); } 100% { opacity: 1; transform: scale(1) rotate(0deg); } }

.art-cards { position: absolute; right: 1%; top: 58%; display: flex; gap: 14px; }
.mini-card {
  width: 118px; height: 96px; border-radius: 14px; padding: 12px;
  background: rgba(236, 234, 246, 0.055); border: 1px solid var(--line);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.4);
  opacity: 0; transform: translateY(16px) scale(0.92);
}
.scene.play .mini-card { animation: cardLand 0.8s var(--ease) forwards, snFloat 6s var(--ease) infinite; }
.scene.play .mc-chart { animation-delay: 4.1s, 5.2s; }
.scene.play .mc-web { animation-delay: 4.3s, 5.7s; }
.scene.play .mc-poster { animation-delay: 4.5s, 6.2s; }
@keyframes cardLand { to { opacity: 1; transform: none; } }

.mc-cap { font-size: 11px; color: var(--text-2); letter-spacing: 0.08em; }
.bars { display: flex; align-items: flex-end; gap: 7px; height: 52px; margin-top: 10px; }
.bars i { flex: 1; height: var(--h); border-radius: 5px 5px 2px 2px; background: linear-gradient(180deg, rgba(var(--iris-rgb), 0.95), rgba(var(--iris-rgb), 0.4)); }
.bars i:nth-child(2n) { background: linear-gradient(180deg, rgba(45, 212, 167, 0.9), rgba(45, 212, 167, 0.35)); }
.mc-dots { display: flex; gap: 4px; }
.mc-dots i { width: 7px; height: 7px; border-radius: 50%; background: rgba(236, 234, 246, 0.22); }
.mc-line { display: block; height: 7px; border-radius: 4px; background: rgba(236, 234, 246, 0.16); margin-top: 9px; }
.mc-line.w80 { width: 80%; } .mc-line.w60 { width: 60%; }
.mc-block { display: block; height: 34px; border-radius: 8px; margin-top: 9px; background: linear-gradient(100deg, rgba(var(--iris-rgb), 0.5), rgba(240, 163, 198, 0.4)); }
.mc-poster { display: grid; place-items: center; background: linear-gradient(150deg, rgba(var(--iris-rgb), 0.4), rgba(240, 163, 198, 0.32)), rgba(236, 234, 246, 0.05); }
.mc-poster span { font-size: 17px; font-weight: 800; line-height: 1.3; text-align: center; letter-spacing: 0.08em; }

.scene-fallback { display: none; }
.scene-note { font-size: 13.5px; color: var(--text-3); max-width: 620px; border-top: 1px solid var(--line-soft); padding-top: 22px; }

/* ── 未亮的星 ──────────────────────────────────────────── */
.dim-field { position: relative; height: 340px; border-radius: var(--radius); border: 1px solid var(--line-soft); background: rgba(236, 234, 246, 0.02); overflow: hidden; margin-bottom: 18px; }
.dim-dot {
  position: absolute; border-radius: 50%; background: rgba(236, 234, 246, 0.3); cursor: pointer;
  transition: transform 0.35s var(--ease), background 0.35s, box-shadow 0.35s var(--ease);
}
.dim-dot:hover { background: #fff; transform: scale(1.7); box-shadow: 0 0 14px rgba(255, 255, 255, 0.7); }
.dim-dot.lit { animation: dimFlicker 1.5s var(--ease); }
@keyframes dimFlicker {
  0% { background: #fff; box-shadow: 0 0 0 rgba(255, 255, 255, 0); transform: scale(1); }
  18% { box-shadow: 0 0 22px rgba(255, 255, 255, 0.95), 0 0 60px rgba(var(--iris-rgb), 0.6); transform: scale(2.4); }
  38% { opacity: 0.35; transform: scale(1.4); }
  58% { opacity: 1; box-shadow: 0 0 30px rgba(255, 255, 255, 0.9), 0 0 80px rgba(var(--iris-rgb), 0.7); transform: scale(2.8); }
  100% { box-shadow: 0 0 10px rgba(255, 255, 255, 0.4); transform: scale(1.7); }
}
.dim-dot.dim-dot--real { animation: realBreath 3.6s var(--ease) infinite; }
@keyframes realBreath { 0%, 100% { opacity: 0.28; } 50% { opacity: 0.95; } }
.dim-dot.dim-dot--true {
  background: #fff; opacity: 1; cursor: default; pointer-events: none;
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.8), 0 0 34px rgba(var(--iris-rgb), 0.65);
}
.dim-dot.dim-dot--true.born { animation: starBorn 1.2s var(--ease); }
@keyframes starBorn {
  0% { transform: scale(0); opacity: 0; }
  60% { transform: scale(2.2); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}
.dim-hint { font-size: 12.5px; color: var(--text-3); letter-spacing: 0.06em; text-align: center; }

/* 彩蛋成果架：挖到的彩蛋记在这里 */
.egg-vault {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 2; pointer-events: none;
  padding: 22px 16px 16px; display: flex; flex-direction: column; align-items: center; gap: 9px;
  background: linear-gradient(180deg, transparent, rgba(20, 18, 38, 0.8) 46%);
}
.egg-pills { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.egg-pill {
  font-size: 12px; font-weight: 700; letter-spacing: 0.05em; color: var(--text-1);
  padding: 5px 14px; border-radius: 999px; border: 1px solid rgba(var(--iris-rgb), 0.55);
  background: rgba(var(--iris-rgb), 0.14); box-shadow: 0 0 18px rgba(var(--iris-rgb), 0.25);
  animation: pillPop 0.5s var(--ease);
}
.egg-pill i { font-style: normal; color: var(--pink); margin-right: 5px; }
@keyframes pillPop { 0% { transform: scale(0.5); opacity: 0; } 70% { transform: scale(1.12); } 100% { transform: scale(1); opacity: 1; } }
.egg-progress { font-size: 12px; letter-spacing: 0.14em; color: var(--text-3); }
.egg-progress b { color: var(--text-1); font-size: 14.5px; }
.egg-done { text-align: center; animation: pillPop 0.6s var(--ease); }
.egg-done b {
  display: block; font-size: 15.5px; letter-spacing: 0.12em;
  background: linear-gradient(100deg, #C4B2FF, var(--iris), var(--pink));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.egg-done span { display: block; margin-top: 5px; font-size: 12px; color: var(--text-2); letter-spacing: 0.04em; }

/* ── 汇聚 ──────────────────────────────────────────────── */
.gather-head { max-width: 720px; margin: 0 auto 40px; text-align: center; }
.gather-title { font-size: clamp(30px, 4.4vw, 52px); line-height: 1.35; font-weight: 800; margin: 16px 0 16px; }
.gather-count { display: flex; align-items: center; justify-content: center; gap: 26px; margin-bottom: 64px; flex-wrap: wrap; }
.gc-cell { text-align: center; }
.gc-num { display: block; font-size: clamp(56px, 8vw, 92px); font-weight: 800; line-height: 1.1; letter-spacing: 0.02em; text-shadow: 0 0 40px rgba(var(--iris-rgb), 0.35); }
.gc-q { background: linear-gradient(120deg, #C4B2FF, var(--pink)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.gc-cell span { font-size: 13px; color: var(--text-2); letter-spacing: 0.08em; }
.gc-sep { font-size: 30px; color: var(--text-3); }

.crowd { overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.crowd-track { display: flex; width: max-content; animation: crowdFlow 34s linear infinite; will-change: transform; padding: 6px 0; }
.crowd-set { display: flex; flex: none; }
/* 无 JS 时静止展示一组（不滑动，避免滑出空白） */
html:not(.js) .crowd-track { animation: none; }
@keyframes crowdFlow { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.crowd-chip {
  width: 58px; height: 58px; border-radius: 50%; overflow: hidden; flex: none; margin-right: 18px;
  background: #1B1930; border: 1px solid rgba(236, 234, 246, 0.24); box-shadow: 0 8px 22px rgba(0, 0, 0, 0.45);
}
.crowd-chip img { width: 100%; height: 100%; object-fit: cover; }
.crowd-chip.cq { display: grid; place-items: center; font-size: 21px; font-weight: 800; color: var(--iris); border-style: dashed; background: transparent; overflow: visible; animation: qBreath 3s var(--ease) infinite; }
.crowd-cap { text-align: center; font-size: 14px; color: var(--text-2); margin-top: 26px; }
.crowd-cap em { font-style: normal; color: var(--pink); }

/* ── 下载 ──────────────────────────────────────────────── */
.dl-wrap { max-width: 980px; margin: 0 auto; }
.dl-head { text-align: center; margin-bottom: 44px; }
.dl-head h2 { font-size: clamp(28px, 3.6vw, 42px); font-weight: 800; margin: 14px 0 12px; }
.dl-cards { display: grid; grid-template-columns: 1.25fr 1fr; gap: 22px; }
.dl-card {
  border-radius: var(--radius); padding: 28px; background: rgba(236, 234, 246, 0.045); border: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 20px;
}
.dl-card.is-primary { border-color: rgba(var(--iris-rgb), 0.45); box-shadow: 0 22px 60px rgba(0, 0, 0, 0.4), 0 0 50px rgba(var(--iris-rgb), 0.1); }
.dl-card.is-muted { opacity: 0.75; }
.dl-os { display: flex; align-items: center; gap: 14px; color: var(--text-1); }
.dl-os h3 { font-size: 18px; font-weight: 800; }
.dl-os span { font-size: 12.5px; color: var(--text-3); display: block; margin-top: 2px; }
.dl-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.dl-meta { font-size: 12.5px; color: var(--text-3); }
.dl-promise { text-align: center; font-size: 13px; color: var(--text-3); margin-top: 34px; display: flex; align-items: center; justify-content: center; gap: 14px; flex-wrap: wrap; }
.dl-sep { width: 4px; height: 4px; border-radius: 50%; background: rgba(var(--iris-rgb), 0.6); }
@media (max-width: 780px) { .dl-cards { grid-template-columns: 1fr; } }

/* ── 留言反馈 · 给星群捎句话 ───────────────────────────── */
.fb-wrap { max-width: 760px; margin: 0 auto; }
.fb-head { text-align: center; margin-bottom: 40px; }
.fb-head h2 { font-size: clamp(28px, 3.6vw, 42px); font-weight: 800; margin: 14px 0 12px; }
.fb-head .section-sub { max-width: 560px; margin: 0 auto; }
.fb-card {
  border-radius: var(--radius); padding: 28px; background: rgba(236, 234, 246, 0.045); border: 1px solid var(--line);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.35), 0 0 50px rgba(var(--iris-rgb), 0.07);
}
.fb-form { display: flex; flex-direction: column; gap: 18px; }
.fb-row { display: grid; grid-template-columns: 1fr 1.4fr; gap: 14px; }
@media (max-width: 640px) { .fb-row { grid-template-columns: 1fr; } }
.fb-field { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.fb-field label { font-size: 13px; font-weight: 700; color: var(--text-2); letter-spacing: 0.02em; }
.fb-field label em {
  font-style: normal; font-size: 11px; font-weight: 600; color: var(--text-3);
  border: 1px solid var(--line); border-radius: 999px; padding: 1px 8px; margin-left: 7px; letter-spacing: 0.04em;
}
.fb-field input, .fb-field textarea {
  font: inherit; font-size: 14px; color: var(--text-1);
  background: rgba(11, 10, 18, 0.55); border: 1px solid var(--line); border-radius: 14px;
  padding: 12px 14px; outline: none; resize: vertical; width: 100%;
  transition: border-color 0.2s, box-shadow 0.25s var(--ease), background 0.2s;
}
.fb-field input::placeholder, .fb-field textarea::placeholder { color: var(--text-3); }
.fb-field input:focus, .fb-field textarea:focus {
  border-color: rgba(var(--iris-rgb), 0.65);
  box-shadow: 0 0 0 3px rgba(var(--iris-rgb), 0.16), var(--glow-iris);
  background: rgba(11, 10, 18, 0.75);
}
.fb-cats { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 10px; }
.fb-cat {
  display: flex; flex-direction: column; align-items: flex-start; gap: 2px;
  font: inherit; text-align: left; cursor: pointer;
  color: var(--text-2); background: rgba(236, 234, 246, 0.04); border: 1px solid var(--line);
  border-radius: 14px; padding: 11px 13px;
  transition: border-color 0.2s, background 0.2s, color 0.2s, transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.fb-cat i { font-style: normal; color: var(--text-3); font-size: 13px; line-height: 1; transition: color 0.2s; }
.fb-cat span { font-size: 11px; color: var(--text-3); line-height: 1.4; }
.fb-cat:hover { border-color: rgba(236, 234, 246, 0.3); transform: translateY(-2px); }
.fb-cat:active { transform: translateY(0) scale(0.98); }
.fb-cat.is-active {
  color: var(--text-1); background: rgba(var(--iris-rgb), 0.14); border-color: rgba(var(--iris-rgb), 0.55);
  box-shadow: 0 8px 26px rgba(var(--iris-rgb), 0.16);
}
.fb-cat.is-active i { color: var(--iris); }
.fb-cat.is-active span { color: var(--text-2); }
.fb-meta { display: flex; align-items: center; gap: 12px; min-height: 18px; }
.fb-err { font-size: 12.5px; color: #F08A9B; } /* 暗底上的蔷薇红（错误提示专用） */
.fb-count { font-size: 11.5px; color: var(--text-3); margin-left: auto; }
.fb-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-top: 2px; }
.fb-note { font-size: 12.5px; color: var(--text-3); }
#fbSubmit:disabled { opacity: 0.6; cursor: wait; transform: none; }
.fb-done {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  padding: 34px 12px; gap: 8px; animation: fbDone 0.5s var(--ease) both;
}
.fb-done[hidden] { display: none; }
.fb-done-star { display: inline-block; font-size: 34px; color: var(--pink); animation: fbStarPop 1s var(--ease) both, fbStarFloat 3.2s ease-in-out 1s infinite; }
.fb-done b { font-size: 19px; font-weight: 800; color: var(--text-1); margin-top: 4px; }
.fb-done p { font-size: 13.5px; color: var(--text-2); max-width: 430px; line-height: 1.8; margin: 2px 0 10px; }
@keyframes fbDone { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes fbStarPop { 0% { opacity: 0; transform: scale(0.3) rotate(-90deg); } 100% { opacity: 1; transform: scale(1) rotate(0deg); } }
@keyframes fbStarFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }

/* ── 页脚 ──────────────────────────────────────────────── */
.footer { border-top: 1px solid var(--line-soft); background: rgba(236, 234, 246, 0.02); }
.footer-inner { max-width: 1180px; margin: 0 auto; padding: 46px 28px; display: flex; flex-wrap: wrap; gap: 26px 40px; align-items: flex-start; justify-content: space-between; }
.footer-brand { display: flex; gap: 12px; align-items: center; }
.footer-emblem { width: 34px; height: 34px; }
.footer-brand b { font-size: 16px; display: block; }
.footer-brand p { font-size: 12.5px; color: var(--text-3); letter-spacing: 0.06em; }
.footer-links { display: flex; gap: 6px; flex-wrap: wrap; }
.footer-links a { font-size: 13px; color: var(--text-2); padding: 6px 12px; border-radius: 999px; transition: color 0.2s, background 0.25s var(--ease); }
.footer-links a:hover { color: var(--text-1); background: rgba(236, 234, 246, 0.07); }
.footer-legal { text-align: right; }
.footer-legal p { font-size: 12.5px; color: var(--text-3); }
.footer-legal a { color: inherit; text-decoration: underline; text-underline-offset: 3px; transition: opacity 0.2s; }
.footer-legal a:hover { opacity: 0.75; }
.footer-versions { margin-top: 10px; display: flex; gap: 8px; justify-content: flex-end; align-items: center; flex-wrap: wrap; }
.footer-versions a { font-size: 11.5px; color: var(--text-2); border: 1px solid var(--line); border-radius: 999px; padding: 3px 12px; transition: all 0.25s var(--ease); }
.footer-versions a:hover { color: var(--text-1); border-color: rgba(var(--iris-rgb), 0.6); background: rgba(var(--iris-rgb), 0.12); }
@media (max-width: 860px) { .footer-legal { text-align: left; } .footer-versions { justify-content: flex-start; } }

/* ── 回顶 & Toast ──────────────────────────────────────── */
.backtop {
  position: fixed; right: 26px; bottom: 26px; z-index: 90; width: 46px; height: 46px; border-radius: 16px; border: none; cursor: pointer;
  background: var(--ivory); color: var(--ink); display: grid; place-items: center;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.5);
  opacity: 0; pointer-events: none; transform: translateY(14px);
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease), background 0.25s;
}
.backtop.show { opacity: 1; pointer-events: auto; transform: none; }
.backtop:hover { background: #fff; transform: translateY(-2px); }
.toast {
  position: fixed; left: 50%; bottom: 34px; z-index: 130; translate: -50% 20px;
  background: var(--ivory); color: var(--ink); font-size: 13.5px; font-weight: 600; padding: 12px 22px; border-radius: 16px;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.5), var(--glow-iris);
  opacity: 0; pointer-events: none; transition: opacity 0.3s var(--ease), translate 0.3s var(--ease);
  max-width: min(88vw, 560px); text-align: center;
}
.toast.show { opacity: 1; translate: -50% 0; }

/* ── 彩蛋恭喜横幅（挖到即弹：星屑爆散 + 进度 + 成果架入口） ── */
.egg-fanfare {
  position: fixed; inset: 0; z-index: 140; display: grid; place-items: center;
  background: rgba(11, 10, 18, 0.55); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.egg-fanfare[hidden] { display: none; }
.egg-fanfare.play { animation: fanfareIn 0.35s var(--ease); }
@keyframes fanfareIn { from { opacity: 0; } to { opacity: 1; } }
.fanfare-stars { position: absolute; inset: 0; display: grid; place-items: center; pointer-events: none; }
.fanfare-stars i {
  position: absolute; font-style: normal; color: var(--iris); font-size: calc(20px * var(--s, 1)); opacity: 0;
  animation: fanfareStar 1.05s var(--ease) forwards;
}
.fanfare-stars i:nth-child(3n) { color: var(--pink); }
.fanfare-stars i:nth-child(4n) { color: #fff; }
@keyframes fanfareStar {
  0% { transform: translate(0, 0) scale(0.3) rotate(0deg); opacity: 0; }
  16% { opacity: 1; }
  100% { transform: translate(var(--dx), var(--dy)) scale(1) rotate(140deg); opacity: 0; }
}
.fanfare-card {
  position: relative; text-align: center; max-width: min(88vw, 460px);
  background: var(--ivory); color: var(--ink); border-radius: 26px; padding: 32px 42px 26px;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.6), var(--glow-iris);
}
.egg-fanfare.play .fanfare-card { animation: fanfarePop 0.55s var(--ease); }
@keyframes fanfarePop { 0% { transform: scale(0.62) translateY(30px); opacity: 0; } 62% { transform: scale(1.05) translateY(0); opacity: 1; } 100% { transform: scale(1); } }
.fanfare-kicker { display: block; font-size: 12.5px; font-weight: 800; letter-spacing: 0.32em; color: var(--iris); }
.fanfare-name {
  display: block; font-size: 34px; font-weight: 800; line-height: 1.3; margin: 6px 0 4px;
  background: linear-gradient(100deg, #7C5CF0, var(--iris), #E588B8);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.fanfare-line { font-size: 13.5px; color: #55516E; }
.fanfare-foot { margin-top: 16px; display: flex; align-items: center; justify-content: center; gap: 14px; flex-wrap: wrap; font-size: 12.5px; color: #6E6A8C; }
.fanfare-btn {
  border: none; cursor: pointer; font: inherit; font-weight: 700; font-size: 12.5px;
  padding: 8px 18px; border-radius: 999px; background: var(--ink); color: var(--ivory);
  transition: transform 0.25s var(--ease), box-shadow 0.25s;
}
.fanfare-btn:hover { transform: translateY(-1px); box-shadow: 0 8px 22px rgba(23, 22, 31, 0.45); }
@media (max-width: 560px) { .fanfare-card { padding: 26px 24px 22px; } .fanfare-name { font-size: 28px; } }

/* ── 滚动揭示 ──────────────────────────────────────────── */
html.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.6s var(--ease), transform 0.7s var(--ease); transition-delay: var(--d, 0s); will-change: opacity, transform; }
html.js .reveal.in { opacity: 1; transform: none; }

/* ── 响应式 ────────────────────────────────────────────── */
@media (max-width: 1020px) {
  .hero-inner { grid-template-columns: 1fr; padding-top: 118px; gap: 60px; }
  .hero-copy { max-width: 640px; }
  .stage { width: min(88vw, 460px); --r1: 112px; --r2: 172px; }
  .nucleus { width: 132px; height: 132px; }
}
@media (max-width: 760px) {
  .section { padding: 84px 22px; }
  .scene { display: none; }
  .scene-fallback {
    display: flex; flex-direction: column; gap: 14px; margin-bottom: 30px;
    border-left: 2px solid rgba(var(--iris-rgb), 0.4); padding-left: 18px;
  }
  .fb-item { display: flex; align-items: baseline; gap: 12px; }
  .fb-k { font-size: 12px; font-weight: 700; color: var(--iris); letter-spacing: 0.08em; flex: none; }
  .fb-item p { font-size: 14px; color: var(--text-2); }
  .dim-field { height: 300px; }
  .egg-vault { padding: 18px 10px 12px; }
  .egg-pill { font-size: 11px; padding: 4px 11px; }
  .art-cards { right: 0; }
}
@media (max-width: 560px) {
  .stage { --r1: 92px; --r2: 146px; }
  .chip-v { width: 42px; height: 42px; margin: -21px 0 0 -21px; }
  .nucleus { width: 118px; height: 118px; }
  .nucleus b { font-size: 16px; }
  .hero-cta .btn-lg { width: 100%; justify-content: center; }
  .gather-count { gap: 16px; }
  .gc-sep { display: none; }
}