/* 飞天探微 · main.css
 * 深空蓝。所有颜色定义为变量；文字始终压在半透明玻璃或足够暗的底上。
 */
@font-face { font-family: "Instrument Serif"; src: url("../fonts/InstrumentSerif.woff?v=8a639b7976") format("woff"); font-display: swap; }
@font-face { font-family: "Geist Mono"; src: url("../fonts/GeistMono.woff?v=692c565937") format("woff"); font-weight: 100 900; font-display: swap; }

:root {
  --bg: #020610;
  --bg-2: #061228;
  --ink: #eaf2ff;
  --ink-2: rgba(222, 234, 255, .74);
  --ink-3: rgba(196, 214, 245, .5);
  --blue: #2f6bff;
  --blue-2: #4f8dff;
  --sky: #8cc8ff;
  --ice: #d6ebff;
  --mint: #8cffd8;
  --line: rgba(150, 190, 255, .14);
  --line-2: rgba(150, 190, 255, .28);
  --glass: rgba(7, 18, 44, .58);
  --glass-2: rgba(8, 22, 54, .92);
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", "Segoe UI", system-ui, sans-serif;
  --latin: "Instrument Serif", "Times New Roman", Georgia, serif;
  --mono: "Geist Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --wrap: 1320px;
  --gutter: clamp(20px, 5vw, 72px);
  --spring: linear(0, 0.0568, 0.1953, 0.3741, 0.5609, 0.7333, 0.8775, 0.9875, 1.0627, 1.1066, 1.1248, 1.1237, 1.1098, 1.0888, 1.0652, 1.0424, 1.0226, 1.0068, 0.9955, 0.9884, 0.9848, 0.9841, 0.9852, 0.9876, 0.9905, 0.9935, 0.9962, 0.9984, 1, 1.0012, 1.0018, 1.002, 1.0019, 1.0017, 1.0014, 1.001, 1);
  --spring-soft: linear(0, 0.0395, 0.1334, 0.2534, 0.3806, 0.5027, 0.613, 0.708, 0.7868, 0.8501, 0.8994, 0.9365, 0.9637, 0.9828, 0.9956, 1.0037, 1.0083, 1.0105, 1.0111, 1.0106, 1.0096, 1.0082, 1.0068, 1.0055, 1.0043, 1.0032, 1.0023, 1.0016, 1.0011, 1.0007, 1.0004, 1.0002, 1, 1, 0.9999, 0.9999, 1);
  --out: cubic-bezier(.16, 1, .3, 1);
  color-scheme: dark;
}
@supports not (transition-timing-function: linear(0, 1)) {
  :root { --spring: cubic-bezier(.2, 1.35, .3, 1); --spring-soft: cubic-bezier(.16, 1, .3, 1); }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; background: var(--bg); }
html.reduce-motion { scroll-behavior: auto; }
body {
  margin: 0; min-height: 100vh; overflow-x: clip;
  background: radial-gradient(120% 80% at 50% 120%, #0a1e4a 0%, transparent 60%), linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 55%, #030a1a 100%);
  background-attachment: fixed;
  color: var(--ink); font-family: var(--sans); font-size: 17px; line-height: 1.78; letter-spacing: .01em;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
::selection { background: rgba(79, 141, 255, .45); color: #fff; }
[hidden] { display: none !important; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
:focus-visible { outline: 2px solid var(--sky); outline-offset: 4px; border-radius: 6px; }
h1, h2, h3 { margin: 0; font-weight: 700; letter-spacing: -.005em; }
p { margin: 0 0 1em; }
strong { color: var(--ice); font-weight: 650; }
.muted { color: var(--ink-3); }
.latin { font-family: var(--latin); font-style: italic; letter-spacing: .01em; }

.skip-link { position: fixed; left: 16px; top: -60px; z-index: 200; padding: 10px 16px; border-radius: 10px; background: var(--blue); color: #fff; transition: top .2s; }
.skip-link:focus { top: 16px; }

/* ───────── 背景层 ───────── */
#world { position: fixed; inset: 0; z-index: 1; pointer-events: none; display: block; }
.light-field {
  position: fixed; left: 0; top: 0; width: 1000px; height: 1000px; z-index: 0; pointer-events: none;
  border-radius: 50%; transform-origin: 50% 50%;
  background: radial-gradient(closest-side, rgba(47, 107, 255, .34), rgba(30, 80, 220, .14) 45%, rgba(10, 40, 140, .04) 72%, transparent);
  will-change: transform, opacity; opacity: .9;
  transform: translate3d(calc(70vw - 500px), calc(52vh - 500px), 0) scale(1.2);
}
.grain {
  position: fixed; inset: -50%; z-index: 2; pointer-events: none; opacity: .055; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
main { position: relative; z-index: 3; }
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }

/* ───────── 开场 ───────── */
.intro { position: fixed; inset: 0; z-index: 40; pointer-events: none; display: grid; place-items: center; }
.intro-inner { display: grid; justify-items: center; gap: 6px; transform: translateY(64px); opacity: 0; transition: opacity .6s ease, transform 1s var(--out); }
.intro-mark { font-family: var(--sans); font-size: 15px; letter-spacing: .6em; padding-left: .6em; color: var(--ice); }
.intro-line { font-family: var(--mono); font-size: 11px; letter-spacing: .28em; color: var(--ink-3); }
html.is-intro .intro-inner { opacity: 1; transform: translateY(48px); transition-delay: .15s; }
html.is-intro .intro-inner { animation: introOut .01s linear 9s forwards; }
@keyframes introOut { to { opacity: 0; } }

html.js .topbar, html.js .rail, html.js .hud, html.js .hero-copy > :not(h1), html.js .hero-foot {
  transition: opacity 1s ease, transform 1.2s var(--out);
}
html.is-intro .topbar, html.is-intro .rail, html.is-intro .hud, html.is-intro .hero-foot { opacity: 0; transform: translateY(-10px); }
html.is-intro .hero-copy > :not(h1) { opacity: 0; transform: translateY(24px); }
.hero-copy > .eyebrow { transition-delay: .35s !important; }
.hero-copy > .hero-latin { transition-delay: .7s !important; }
.hero-copy > .hero-motto { transition-delay: .8s !important; }
.hero-copy > .hero-lead { transition-delay: .9s !important; }
.hero-copy > .hero-actions { transition-delay: 1.05s !important; }
html.is-intro .hero-copy > * { transition-delay: 0s !important; }

/* ───────── 文字入场 ───────── */
html.js .split .ch { display: inline-block; opacity: 0; transform: translate3d(0, .55em, 0) rotate(5deg); transform-origin: 0 100%;
  transition: transform 1.05s var(--spring) calc(var(--i) * 32ms + .05s), opacity .5s ease calc(var(--i) * 32ms + .05s); }
html.js .split .ch.sp { width: .3em; }
html.js .in .split .ch, html.js .split.in .ch { opacity: 1; transform: none; }
html.is-intro .hero-title .split .ch { opacity: 0 !important; transform: translate3d(0, .55em, 0) rotate(5deg) !important; transition-delay: 0s !important; }
.hero-title .split .ch { transition-delay: calc(var(--i) * 45ms + .15s), calc(var(--i) * 45ms + .15s) !important; }
html.js .reveal { opacity: 0; transform: translate3d(0, 30px, 0); transition: opacity .9s ease, transform 1.1s var(--spring-soft); }
html.js .reveal.in { opacity: 1; transform: none; }

/* ───────── 光标 ───────── */
.cursor { position: fixed; left: 0; top: 0; z-index: 120; pointer-events: none; opacity: 0; transition: opacity .3s; }
.cursor.on { opacity: 1; }
.cursor-ring { position: absolute; left: 0; top: 0; width: 34px; height: 34px; border-radius: 17px; border: 1px solid rgba(200, 225, 255, .55);
  transition: border-color .25s, background-color .25s; will-change: transform, width, height; }
.cursor-dot { position: absolute; left: -2.5px; top: -2.5px; width: 5px; height: 5px; border-radius: 50%; background: #fff; box-shadow: 0 0 12px 2px rgba(120, 180, 255, .8); }
.cursor-label { position: absolute; left: 0; top: 0; font-size: 12px; letter-spacing: .12em; color: var(--ice); white-space: nowrap; opacity: 0; transition: opacity .2s; }
.cursor.labelled .cursor-label { opacity: 1; }
.cursor.hover .cursor-ring { border-color: rgba(160, 205, 255, .9); background: rgba(79, 141, 255, .1); }
.cursor.aim .cursor-ring { border-color: rgba(140, 255, 216, .9); }
.cursor.down .cursor-ring { background: rgba(79, 141, 255, .25); }
html.is-dragging .cursor-ring { background: rgba(140, 200, 255, .2); }
html.has-cursor, html.has-cursor body, html.has-cursor a, html.has-cursor button, html.has-cursor summary, html.has-cursor canvas, html.has-cursor #rover { cursor: none; }
html.has-cursor dialog, html.has-cursor dialog a, html.has-cursor dialog button { cursor: auto; }
html.dialog-open .cursor { opacity: 0; }

/* ───────── 顶栏 / 导航 / HUD ───────── */
.topbar { position: fixed; inset: 0 0 auto 0; z-index: 30; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 18px var(--gutter); pointer-events: none; }
.topbar::before { content: ""; position: absolute; inset: 0 0 -30px 0; z-index: -1; background: linear-gradient(180deg, rgba(2, 6, 16, .82), rgba(2, 6, 16, 0)); opacity: 0; transition: opacity .4s; }
.topbar.is-scrolled::before { opacity: 1; }
.topbar > * { pointer-events: auto; }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark { width: 38px; height: 38px; fill: none; stroke: var(--sky); stroke-width: 1.3; }
.brand-mark circle:first-child { fill: rgba(47, 107, 255, .35); }
.brand-dot { fill: var(--ice); stroke: none; animation: blink 3.2s ease-in-out infinite; }
.brand-badge { width: auto; height: 42px; flex: none; filter: drop-shadow(0 2px 10px rgba(0, 0, 0, .35)); }
@keyframes blink { 50% { opacity: .25; } }
.brand-text { display: grid; line-height: 1.15; font-weight: 700; letter-spacing: .18em; font-size: 15px; }
.brand-text small { font-family: var(--mono); font-size: 9.5px; letter-spacing: .32em; color: var(--ink-3); font-weight: 400; margin-top: 3px; }
.topbar-actions { display: flex; align-items: center; gap: 10px; }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 9px 18px; border-radius: 999px; font-size: 14px; letter-spacing: .06em; white-space: nowrap; transition: background-color .25s, border-color .25s, color .25s; }
.pill-ghost { border: 1px solid var(--line-2); background: rgba(6, 16, 40, .35); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.pill-ghost:hover { border-color: var(--sky); }
.pill-solid { background: var(--blue); color: #fff; box-shadow: 0 6px 30px -8px rgba(47, 107, 255, .9); }
.pill-solid:hover { background: var(--blue-2); }
.menu-toggle { display: none; width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--line-2); position: relative; background: rgba(6, 16, 40, .5); }
.menu-toggle span { position: absolute; left: 13px; right: 13px; height: 1.5px; background: var(--ink); transition: transform .4s var(--spring); }
.menu-toggle span:first-child { top: 16px; } .menu-toggle span:last-child { top: 24px; }
html.menu-open .menu-toggle span:first-child { transform: translateY(4px) rotate(45deg); }
html.menu-open .menu-toggle span:last-child { transform: translateY(-4px) rotate(-45deg); }
.menu { position: fixed; inset: 0; z-index: 25; display: grid; align-content: center; padding: 90px var(--gutter) 40px; background: rgba(2, 6, 16, .86); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  clip-path: circle(0 at calc(100% - 42px) 38px); transition: clip-path .7s var(--out); }
.menu.open { clip-path: circle(150% at calc(100% - 42px) 38px); }
.menu-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.menu-list a { display: flex; align-items: baseline; gap: 14px; font-size: clamp(26px, 7vw, 40px); font-weight: 700; padding: 4px 0; }
.menu-list b { font-family: var(--mono); font-size: 12px; color: var(--sky); font-weight: 400; }
.menu-foot { margin-top: 30px; color: var(--ink-3); letter-spacing: .2em; }

.rail { position: fixed; right: 22px; top: 50%; transform: translateY(-50%); z-index: 30; }
.rail ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.rail a { display: flex; align-items: center; justify-content: flex-end; gap: 10px; height: 22px; padding-left: 20px; position: relative; }
.rail i { display: block; width: 14px; height: 1.5px; background: var(--ink-3); border-radius: 2px; transition: width .5s var(--spring), background-color .3s; }
.rail span { position: absolute; right: 46px; font-size: 12.5px; letter-spacing: .14em; white-space: nowrap; opacity: 0; transform: translateX(8px); transition: opacity .3s, transform .5s var(--spring); color: var(--ink-2); }
.rail span b { font-family: var(--mono); font-weight: 400; color: var(--sky); margin-right: 8px; }
.rail a:hover span, .rail a:focus-visible span, .rail a.on span { opacity: 1; transform: none; }
.rail a.on i { width: 34px; background: var(--ice); box-shadow: 0 0 10px rgba(140, 200, 255, .8); }
.rail a:hover i { width: 26px; background: var(--sky); }

.hud { position: fixed; left: calc(var(--gutter) - 14px); bottom: 18px; z-index: 30; display: flex; align-items: baseline; gap: 12px; padding: 7px 14px; border-radius: 999px; background: rgba(2, 6, 16, .72); border: 1px solid var(--line); font-family: var(--mono); font-size: 11px; letter-spacing: .12em; color: var(--ink-3); pointer-events: none; }
.hud-value { color: var(--ink-2); }
.hud-value b { color: var(--ice); font-weight: 500; font-size: 13px; font-variant-numeric: tabular-nums; }
.hud-chapter { display: flex; gap: 8px; padding-left: 12px; border-left: 1px solid var(--line-2); }
.hud-chapter i { font-style: normal; }
.hud-index { color: var(--sky); }

/* ───────── 通用组件 ───────── */
.eyebrow, .kicker { display: inline-flex; align-items: center; gap: 12px; margin: 0 0 26px; font-size: 13px; letter-spacing: .3em; color: var(--ink-2); }
.kicker b { font-family: var(--mono); font-weight: 400; font-size: 12px; letter-spacing: .1em; color: var(--sky); padding: 3px 9px; border: 1px solid var(--line-2); border-radius: 999px; }
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 0 rgba(140, 255, 216, .6); animation: live 2.4s ease-out infinite; flex: none; }
@keyframes live { 0% { box-shadow: 0 0 0 0 rgba(140, 255, 216, .55); } 70%, 100% { box-shadow: 0 0 0 10px rgba(140, 255, 216, 0); } }
.display { font-size: clamp(2.3rem, 5.4vw, 5.2rem); line-height: 1.12; letter-spacing: -.01em; }
.display .accent, .hero-title .accent, .finale .accent { color: var(--sky); text-shadow: 0 0 40px rgba(79, 141, 255, .55); }
.lead { font-size: clamp(1.15rem, 1.6vw, 1.38rem); line-height: 1.7; color: var(--ink); }
.chapter { position: relative; padding-block: clamp(110px, 18vh, 200px); }
.chapter-head { margin-bottom: clamp(36px, 6vh, 72px); }
.chapter-head.center { text-align: center; display: grid; justify-items: center; }

.btn { position: relative; display: inline-flex; align-items: center; gap: 12px; height: 54px; padding: 0 26px; border-radius: 999px; font-size: 15.5px; letter-spacing: .08em; overflow: hidden; isolation: isolate; transition: color .3s, border-color .3s; }
.btn i { font-style: normal; display: inline-block; transition: transform .5s var(--spring); }
.btn:hover i { transform: translate(2px, 2px); }
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 10px 40px -10px rgba(47, 107, 255, .95), inset 0 1px 0 rgba(255, 255, 255, .25); }
.btn-primary::before { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(120px circle at var(--bx, 50%) var(--by, 50%), rgba(255, 255, 255, .35), transparent 70%); opacity: 0; transition: opacity .3s; }
.btn-primary:hover::before { opacity: 1; }
.btn-line { border: 1px solid var(--line-2); background: rgba(6, 16, 40, .4); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.btn-line:hover { border-color: var(--sky); }

.tag { display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 11px; letter-spacing: .16em; color: var(--sky); padding: 4px 10px; border: 1px solid var(--line-2); border-radius: 999px; background: rgba(47, 107, 255, .08); }
.chips { list-style: none; padding: 0; margin: 26px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips li { padding: 7px 14px; border-radius: 999px; font-size: 13.5px; letter-spacing: .08em; background: rgba(47, 107, 255, .1); border: 1px solid var(--line-2); color: var(--ice); }

.glass { background: var(--glass); border: 1px solid var(--line); backdrop-filter: blur(14px) saturate(130%); -webkit-backdrop-filter: blur(14px) saturate(130%); }

/* ───────── 00 地球 ───────── */
.hero { min-height: 100vh; min-height: 100svh; display: grid; align-content: center; padding-block: 120px 120px; }
.hero-copy { max-width: 720px; }
.hero-title { font-size: clamp(3.1rem, 8.2vw, 8.6rem); line-height: 1.02; letter-spacing: -.02em; margin-bottom: 18px; }
.hero-title .line { display: block; white-space: nowrap; }
.hero-latin { font-size: clamp(1.25rem, 2vw, 1.75rem); color: var(--ink-2); margin-bottom: 26px; }
.hero-motto { font-size: clamp(1.1rem, 1.6vw, 1.35rem); letter-spacing: .32em; color: var(--ice); margin-bottom: 18px; }
.hero-lead { color: var(--ink-2); max-width: 30em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.hero-foot { position: absolute; left: 0; right: 0; bottom: 64px; display: flex; justify-content: space-between; align-items: center; gap: 20px; margin: 0 auto; }
.audience, .hint { display: inline-flex; align-items: center; gap: 10px; margin: 0; font-size: 13.5px; letter-spacing: .14em; color: var(--ink-2); }
.hint { color: var(--ink-3); font-size: 12.5px; }
.hint-icon { width: 18px; height: 26px; border: 1.5px solid var(--ink-3); border-radius: 10px; position: relative; }
.hint-icon::after { content: ""; position: absolute; left: 50%; top: 5px; width: 2px; height: 6px; margin-left: -1px; border-radius: 2px; background: var(--ice); animation: wheel 1.8s ease-in-out infinite; }
@keyframes wheel { 0% { transform: translateY(0); opacity: 1; } 80% { transform: translateY(8px); opacity: 0; } 100% { opacity: 0; } }

/* ───────── 01 起点 ───────── */
.origin-body { max-width: 640px; }
.origin-text p:not(.lead) { color: var(--ink-2); }
.rover-stage { margin: clamp(40px, 7vh, 80px) 0 0; border-radius: 28px; padding: 22px 22px 18px; position: relative; overflow: hidden;
  background: linear-gradient(180deg, rgba(4, 12, 32, .72), rgba(3, 10, 26, .92)); border: 1px solid var(--line); }
.rover-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; position: relative; z-index: 2; }
.rover-hint { font-size: 12.5px; letter-spacing: .14em; color: var(--ink-3); }
.rover-hint-touch { display: none; }
@media (hover: none) { .rover-hint { font-size: 0; } .rover-hint-touch { display: inline; font-size: 12.5px; } }
#rover { width: 100%; height: auto; display: block; margin-top: -6px; touch-action: pan-y; }
.rv-ground { fill: url(#groundFill); stroke: rgba(140, 200, 255, .55); stroke-width: 1.4; }
.rv-crater { fill: rgba(2, 8, 22, .7); stroke: rgba(140, 200, 255, .18); }
.rv-grit { fill: rgba(140, 200, 255, .22); }
.rv-star { fill: rgba(214, 235, 255, .55); }
.rv-shell { fill: rgba(10, 30, 80, .92); stroke: var(--sky); stroke-width: 1.6; }
.rv-panel { stroke: rgba(140, 200, 255, .45); stroke-width: 1.2; fill: none; }
.rv-solar { fill: rgba(47, 107, 255, .55); stroke: var(--sky); stroke-width: 1.2; }
.rv-mast { stroke: var(--sky); stroke-width: 2; }
.rv-beacon { fill: var(--mint); }
.rv-head { fill: rgba(14, 40, 100, .95); stroke: var(--sky); stroke-width: 1.6; }
.rv-eye { fill: var(--ice); filter: drop-shadow(0 0 6px #8cc8ff); }
.rv-label { font-family: var(--mono); font-size: 10px; letter-spacing: .3em; fill: rgba(214, 235, 255, .55); }
.rv-limb { fill: none; stroke: var(--ice); stroke-width: 6; stroke-linecap: round; stroke-linejoin: round; }
.rv-leg.far .rv-limb { stroke: rgba(140, 200, 255, .35); stroke-width: 5; }
.rv-joint { fill: var(--blue); stroke: var(--ice); stroke-width: 1.5; }
.rv-leg.far .rv-joint { fill: #0d2457; stroke: rgba(140, 200, 255, .35); }
.rv-foot { fill: var(--sky); stroke: var(--ice); stroke-width: 1; }
.rv-leg.far .rv-foot { fill: #16336f; stroke: rgba(140, 200, 255, .35); }
.rv-beam { opacity: .75; }
.rv-pt { fill: var(--mint); }
.rv-link { stroke: rgba(140, 200, 255, .35); stroke-dasharray: 3 5; stroke-width: 1; }
.rv-drone-arm { stroke: var(--ice); stroke-width: 1.6; stroke-linecap: round; }
.rv-drone-core { fill: var(--blue-2); stroke: var(--ice); }
#rover g, #rover path { transition: opacity .35s; }
#rover.hl .rv-hull, #rover.hl .rv-leg, #rover.hl .rv-scan, #rover.hl .rv-swarm { opacity: .22; }
#rover.hl-body .rv-hull { opacity: 1; }
#rover.hl-body .rv-shell, #rover.hl-body .rv-solar { stroke: var(--mint); }
#rover.hl-legs .rv-leg { opacity: 1; }
#rover.hl-legs .rv-limb { stroke: var(--mint); }
#rover.hl-feet .rv-leg { opacity: .5; }
#rover.hl-feet .rv-foot { fill: var(--mint); stroke: #fff; }
#rover.hl-feet .rv-leg .rv-foot { opacity: 1; }
#rover.hl-scan .rv-scan, #rover.hl-scan .rv-hull { opacity: 1; }
#rover.hl-swarm .rv-swarm { opacity: 1; }
#rover.hl-swarm .rv-drone-core { fill: var(--mint); }
.rover-notes { list-style: none; margin: 4px 0 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; position: relative; z-index: 2; }
.rover-notes button { width: 100%; height: 100%; text-align: left; display: grid; gap: 4px; padding: 14px 16px; border-radius: 16px; border: 1px solid var(--line); background: rgba(4, 12, 32, .6); transition: border-color .3s, background-color .3s, transform .5s var(--spring); }
.rover-notes b { font-size: 15px; letter-spacing: .06em; }
.rover-notes span { font-size: 12.5px; line-height: 1.6; color: var(--ink-3); }
.rover-notes button:hover, .rover-notes button.on { border-color: var(--mint); background: rgba(20, 60, 90, .45); transform: translateY(-3px); }
.rover-notes button.on b { color: var(--mint); }
.honest { display: flex; gap: 18px; margin-top: 34px; padding: 22px 26px; border-left: 2px solid var(--sky); background: linear-gradient(90deg, rgba(47, 107, 255, .12), transparent); border-radius: 0 16px 16px 0; max-width: 860px; }
.honest-mark { font-size: 26px; color: var(--sky); line-height: 1; }
.honest p { margin: 0; }
.honest span { color: var(--ink-3); font-size: 15px; }

/* ───────── 02 足迹 ───────── */
.footprints { padding-block: 0; }
.fp-sticky { padding-block: clamp(110px, 16vh, 180px) 80px; }
.fp-sub { color: var(--ink-3); max-width: 40em; margin-top: 22px; }
.fp-head { margin-bottom: 30px; }
.fp-head .display { font-size: clamp(2.1rem, 4.6vw, 4.4rem); }
.fp-viewport { position: relative; }
.fp-track { position: relative; }
.fp-path, .fp-probe { display: none; }
.fp-list { list-style: none; margin: 0 auto; padding: 0 var(--gutter); max-width: var(--wrap); display: grid; gap: 14px; border-left: 0; }
.fp-item { position: relative; padding: 22px 24px 20px 64px; border-radius: 20px; background: rgba(5, 14, 36, .86); border: 1px solid var(--line); }
.fp-item::before { content: ""; position: absolute; left: 26px; top: 30px; width: 12px; height: 12px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 4px rgba(47, 107, 255, .2), 0 0 18px rgba(79, 141, 255, .9); }
.fp-item time { font-family: var(--mono); font-size: 13px; letter-spacing: .14em; color: var(--sky); }
.fp-item h3 { font-size: 16.5px; line-height: 1.5; margin: 4px 0 6px; }
.fp-item h3 em { display: block; font-style: normal; font-size: 21px; color: var(--ice); margin-top: 2px; }
.fp-extra { border-style: dashed; }
.fp-item p { margin: 0; font-size: 14px; color: var(--ink-3); }
.fp-proof { margin-top: 12px; display: inline-flex; gap: 6px; font-size: 13.5px; letter-spacing: .08em; color: var(--sky); border-bottom: 1px solid currentColor; padding-bottom: 2px; }
.fp-proof:hover { color: var(--ice); }
.fp-foot { margin-top: 26px; }
.fp-foot p { display: inline-flex; flex-wrap: wrap; gap: 6px 14px; align-items: baseline; padding: 14px 20px; border-radius: 14px; border: 1px dashed var(--line-2); color: var(--ink-2); margin: 0; }
.fp-foot b { font-family: var(--mono); font-weight: 400; font-size: 12px; letter-spacing: .2em; color: var(--sky); }

.footprints.is-pinned .fp-sticky { position: sticky; top: 0; height: 100vh; height: 100svh; padding-block: 86px 40px; display: flex; flex-direction: column; overflow: hidden; }
.footprints.is-pinned .fp-head { margin-bottom: 0; flex: none; display: flex; align-items: flex-end; justify-content: space-between; gap: 10px 40px; flex-wrap: wrap; }
.footprints.is-pinned .fp-head .kicker { width: 100%; margin-bottom: 12px; }
.footprints.is-pinned .fp-head .display { font-size: clamp(2rem, 3.8vw, 3.6rem); }
.footprints.is-pinned .fp-sub { font-size: 14.5px; text-align: right; }
.footprints.is-pinned .fp-sub { margin: 14px 0 0; }
.footprints.is-pinned .fp-viewport { flex: 1; min-height: 420px; overflow: visible; }
.footprints.is-pinned .fp-track { height: 100%; will-change: transform; }
.footprints.is-pinned .fp-path { display: block; position: absolute; left: 0; top: 0; overflow: visible; }
.fp-path path { fill: none; stroke-linecap: round; }
.fp-path-bg { stroke: rgba(140, 200, 255, .16); stroke-width: 1.5; stroke-dasharray: 2 8; }
.fp-path-fg { stroke: var(--sky); stroke-width: 2; filter: drop-shadow(0 0 6px rgba(79, 141, 255, .9)); }
.fp-node { fill: #0b1d4a; stroke: var(--line-2); stroke-width: 1.5; transition: fill .4s, stroke .4s; }
.fp-node.on { fill: var(--sky); stroke: var(--ice); filter: drop-shadow(0 0 6px rgba(140, 200, 255, .9)); }
.footprints.is-pinned .fp-probe { display: block; position: absolute; left: 0; top: 0; width: 0; height: 0; will-change: transform; }
.fp-probe i { position: absolute; left: -7px; top: -7px; width: 14px; height: 14px; border-radius: 50%; background: #fff; box-shadow: 0 0 0 6px rgba(140, 200, 255, .18), 0 0 30px 8px rgba(79, 141, 255, .8); }
.fp-probe i::after { content: ""; position: absolute; inset: -14px; border-radius: 50%; border: 1px solid rgba(140, 200, 255, .6); animation: ping 1.8s ease-out infinite; }
@keyframes ping { from { transform: scale(.4); opacity: 1; } to { transform: scale(1.6); opacity: 0; } }
.footprints.is-pinned .fp-list { display: block; padding: 0; margin: 0; max-width: none; position: absolute; inset: 0; }
.footprints.is-pinned .fp-item { position: absolute; width: 360px; padding: 18px 22px; margin-left: -22px; opacity: .14; transform: translate3d(0, 24px, 0) scale(.94);
  transition: opacity .6s ease, transform .9s var(--spring), border-color .5s; }
.footprints.is-pinned .fp-item:nth-child(odd) { bottom: calc(50% + 56px); }
.footprints.is-pinned .fp-item:nth-child(even) { top: calc(50% + 56px); }
.footprints.is-pinned .fp-item::before { left: 16px; top: auto; bottom: -15px; width: 10px; height: 10px; display: none; }
.footprints.is-pinned .fp-item::after { content: ""; position: absolute; left: 20.5px; width: 1px; background: linear-gradient(var(--line-2), rgba(140, 200, 255, .6)); }
.footprints.is-pinned .fp-item:nth-child(odd)::after { top: 100%; height: 10px; }
.footprints.is-pinned .fp-item:nth-child(even)::after { bottom: 100%; height: 10px; background: linear-gradient(rgba(140, 200, 255, .6), var(--line-2)); }
.footprints.is-pinned .fp-item.on { opacity: 1; transform: none; border-color: var(--line-2); }
.footprints.is-pinned .fp-foot { flex: none; }

/* ───────── 03/04 正在探索 ───────── */
.explore { min-height: 100vh; display: grid; align-content: center; }
.explore-grid { display: grid; grid-template-columns: minmax(0, 620px); gap: 40px; }
.explore-copy > p { color: var(--ink-2); max-width: 34em; }
.questions { list-style: none; margin: 34px 0 26px; padding: 0; display: grid; gap: 4px; }
.questions li { font-size: clamp(1.15rem, 1.7vw, 1.45rem); color: var(--ice); padding-left: 22px; position: relative; }
.questions li::before { content: ""; position: absolute; left: 0; top: .78em; width: 10px; height: 1.5px; background: var(--sky); }
.explore-note { max-width: 560px; padding: 22px 26px; border-radius: 20px; background: rgba(5, 14, 36, .8); border: 1px solid var(--line); }
.explore-note .latin { font-size: 22px; color: var(--sky); margin-bottom: 8px; }
.explore-note p:last-child { margin: 0; color: var(--ink-2); font-size: 15.5px; }

.flow { margin: 36px 0 0; position: relative; max-width: 560px; }
.flow ol { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; position: relative; }
.flow li { position: relative; display: grid; justify-items: center; gap: 2px; padding: 14px 4px 12px; border-radius: 14px; border: 1px solid var(--line); background: rgba(4, 12, 32, .6);
  animation: flowStep 6s ease-in-out infinite; animation-delay: calc(var(--n) * 1.2s); }
.flow li:nth-child(1) { --n: 0; } .flow li:nth-child(2) { --n: 1; } .flow li:nth-child(3) { --n: 2; } .flow li:nth-child(4) { --n: 3; } .flow li:nth-child(5) { --n: 4; }
.flow li:not(:last-child)::after { content: "→"; position: absolute; right: -9px; top: 50%; transform: translateY(-50%); font-size: 11px; color: var(--ink-3); z-index: 1; }
.flow b { font-size: 15px; letter-spacing: .1em; }
.flow span { font-size: 11.5px; color: var(--ink-3); letter-spacing: .1em; }
@keyframes flowStep { 0%, 22%, 100% { border-color: var(--line); background: rgba(4, 12, 32, .6); box-shadow: none; } 6%, 14% { border-color: var(--sky); background: rgba(47, 107, 255, .22); box-shadow: 0 0 24px -4px rgba(79, 141, 255, .8); } }
.flow-return { display: block; width: 100%; height: 30px; margin-top: 4px; }
.flow-return path { fill: none; stroke: var(--line-2); stroke-width: 1.2; stroke-dasharray: 3 5; vector-effect: non-scaling-stroke; animation: dash 1.6s linear infinite; }
@keyframes dash { to { stroke-dashoffset: -16; } }
.flow figcaption { font-size: 13px; letter-spacing: .14em; color: var(--ink-3); text-align: center; margin-top: 2px; }

/* ───────── 05 实验台 ───────── */
.lab-sub { color: var(--ink-3); margin-top: 18px; }
.lab-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.lab-card { border-radius: 26px; padding: 24px; background: rgba(5, 14, 36, .88); border: 1px solid var(--line); display: grid; gap: 16px; transition: border-color .5s, box-shadow .5s; }
.lab-card.is-done { border-color: rgba(140, 255, 216, .6); box-shadow: 0 0 60px -20px rgba(140, 255, 216, .6); }
.lab-card h3 { font-size: 22px; margin: 12px 0 4px; }
.lab-card header p { margin: 0; color: var(--ink-3); font-size: 14.5px; }
.lab-canvas { position: relative; aspect-ratio: 16 / 11; border-radius: 18px; overflow: hidden; background: radial-gradient(circle at 50% 50%, rgba(20, 50, 120, .35), rgba(2, 8, 22, .85) 70%); border: 1px solid var(--line); }
.lab-canvas canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: manipulation; }
.lab-toast { position: absolute; left: 12px; right: 12px; bottom: 12px; margin: 0; padding: 10px 14px; border-radius: 12px; font-size: 13.5px; line-height: 1.55; background: rgba(4, 12, 32, .85); border: 1px solid var(--line-2); color: var(--ice);
  opacity: 0; transform: translateY(8px); transition: opacity .3s, transform .5s var(--spring); pointer-events: none; }
.lab-toast.show { opacity: 1; transform: none; }
.lab-controls { display: flex; flex-wrap: wrap; gap: 10px; }
.key { display: inline-flex; align-items: center; gap: 10px; padding: 10px 16px; border-radius: 12px; border: 1px solid var(--line-2); background: rgba(47, 107, 255, .08); font-size: 14.5px; letter-spacing: .06em; user-select: none; -webkit-user-select: none; touch-action: manipulation; transition: background-color .2s, border-color .2s; }
.key kbd { font-family: var(--mono); font-size: 11px; padding: 1px 6px; border-radius: 5px; border: 1px solid var(--line-2); color: var(--ink-3); }
.key:hover { border-color: var(--sky); }
.key.is-on { background: var(--blue); border-color: var(--blue-2); color: #fff; }
.key-ghost { background: none; color: var(--ink-3); margin-left: auto; }
.lab-readout { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin: 0; border-radius: 14px; overflow: hidden; background: var(--line); }
.lab-readout div { background: rgba(4, 12, 32, .85); padding: 10px 14px; }
.lab-readout dt { font-size: 12px; letter-spacing: .12em; color: var(--ink-3); }
.lab-readout dd { margin: 2px 0 0; font-family: var(--mono); font-size: 17px; color: var(--ice); font-variant-numeric: tabular-nums; }
.lab-disclaimer { text-align: center; margin-top: 18px; font-size: 13px; color: var(--ink-3); }
.life { display: flex; gap: 24px; margin-top: clamp(70px, 12vh, 130px); padding: clamp(26px, 4vw, 44px); border-radius: 28px; border: 1px solid var(--line-2);
  background: linear-gradient(120deg, rgba(30, 70, 190, .5), rgba(5, 14, 36, .88) 60%); }
.life-star { font-size: 40px; line-height: 1; color: var(--sky); animation: spin 18s linear infinite; display: inline-block; height: fit-content; }
@keyframes spin { to { transform: rotate(360deg); } }
.life h3 { font-size: clamp(1.4rem, 2.4vw, 2rem); margin-bottom: 14px; }
.life p { color: var(--ink-2); max-width: 46em; }
.life p.muted { color: var(--ink-3); margin: 0; font-size: 15px; }

/* ───────── 06 一起成长 ───────── */
.native-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(30px, 5vw, 70px); align-items: start; max-width: 1100px; }
.native-copy p:not(.lead) { color: var(--ink-2); }
.terminal { border-radius: 20px; overflow: hidden; background: rgba(3, 9, 24, .88); border: 1px solid var(--line-2); box-shadow: 0 30px 80px -30px rgba(0, 0, 0, .8), 0 0 0 1px rgba(47, 107, 255, .08); font-family: var(--mono); }
.terminal-bar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.terminal-bar i { width: 10px; height: 10px; border-radius: 50%; background: rgba(140, 200, 255, .25); }
.terminal-bar span { margin-left: 10px; font-size: 11.5px; letter-spacing: .1em; color: var(--ink-3); }
.terminal-body { list-style: none; margin: 0; padding: 20px 22px 6px; display: grid; gap: 12px; }
.terminal-body li { display: flex; align-items: baseline; gap: 12px; font-family: var(--sans); font-size: clamp(16px, 1.5vw, 19px); min-height: 1.7em; }
.terminal-body li::before { content: "›"; font-family: var(--mono); color: var(--sky); }
.t-text { color: var(--ice); }
.terminal-body li.typing .t-text::after { content: ""; display: inline-block; width: .55em; height: 1.05em; margin-left: 2px; vertical-align: -3px; background: var(--sky); animation: caret .8s steps(1) infinite; }
@keyframes caret { 50% { opacity: 0; } }
.t-ok { font-family: var(--mono); color: var(--mint); margin-left: auto; opacity: 0; transform: scale(.4); transition: transform .6s var(--spring), opacity .2s; }
.terminal-body li.done .t-ok { opacity: 1; transform: none; }
.terminal-foot { margin: 0; padding: 12px 22px 18px; font-family: var(--sans); font-size: 14px; color: var(--ink-3); border-top: 1px dashed var(--line); }

.steps { margin-top: clamp(70px, 12vh, 130px); --p: 0; }
.steps-title { color: var(--ink-2); margin-bottom: 26px; }
.steps-line { position: relative; height: 2px; background: var(--line); border-radius: 2px; }
.steps-fill { position: absolute; left: 0; top: 0; bottom: 0; width: calc(var(--p) * 100%); background: linear-gradient(90deg, var(--blue), var(--sky)); border-radius: 2px; box-shadow: 0 0 12px rgba(79, 141, 255, .9); }
.steps-dot { position: absolute; top: 50%; left: calc(var(--p) * 100%); width: 14px; height: 14px; margin: -7px 0 0 -7px; border-radius: 50%; background: #fff; box-shadow: 0 0 0 5px rgba(140, 200, 255, .2), 0 0 24px 6px rgba(79, 141, 255, .8); }
.steps-list { list-style: none; margin: 0; padding: 26px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.steps-list li { display: grid; gap: 8px; opacity: .35; transform: translateY(10px); transition: opacity .5s, transform .8s var(--spring); }
.steps-list li.on { opacity: 1; transform: none; }
.steps-list b { font-size: clamp(1.6rem, 3vw, 2.6rem); line-height: 1.1; }
.steps-list li.on b { color: var(--ice); text-shadow: 0 0 30px rgba(79, 141, 255, .6); }
.steps-list span { color: var(--ink-3); font-size: 14.5px; max-width: 16em; }

.paths { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: clamp(60px, 10vh, 110px); }
[data-tilt] { --rx: 0deg; --ry: 0deg; --mx: 50%; --my: 0%; transform-style: preserve-3d; }
html.js .reveal.in[data-tilt] { transform: perspective(900px) rotateX(var(--rx)) rotateY(var(--ry)); transition: opacity .9s ease, transform .6s var(--out), border-color .4s; }
.path-card, .value { position: relative; padding: 28px 26px; border-radius: 22px; background: rgba(5, 14, 36, .82); border: 1px solid var(--line); overflow: hidden; }
.path-card::after, .value::after, .ticket::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(420px circle at var(--mx) var(--my), rgba(120, 180, 255, .14), transparent 50%); opacity: 0; transition: opacity .4s; }
.path-card:hover::after, .value:hover::after, .ticket:hover::after { opacity: 1; }
.path-card:hover, .value:hover { border-color: var(--line-2); }
.path-no { font-family: var(--latin); font-style: italic; font-size: 44px; line-height: 1; color: var(--sky); }
.path-card h3 { font-size: 19px; margin: 18px 0 10px; }
.path-card p { margin: 0; color: var(--ink-3); font-size: 15px; }

/* ───────── 07 人文 ───────── */
.human { min-height: 100vh; }
.human-lead { color: var(--ink-2); margin-top: 24px; max-width: 36em; }
.values { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; max-width: 1060px; }
.value { padding: 34px 30px; }
.value-no { font-family: var(--mono); font-size: 12px; letter-spacing: .2em; color: var(--sky); }
.value h3 { font-size: clamp(1.4rem, 2.2vw, 1.9rem); margin: 22px 0 14px; }
.value p { margin: 0; color: var(--ink-2); font-size: 15.5px; }
.human-quote { margin: clamp(60px, 10vh, 110px) 0 0; max-width: 900px; padding-left: 28px; border-left: 2px solid var(--sky); }
.human-quote p:first-child { font-size: clamp(1.3rem, 2.3vw, 1.9rem); line-height: 1.6; color: var(--ice); }
.human-quote .muted { font-size: 16px; margin: 0; }

/* ───────── 08 月球 ───────── */
.join { padding-bottom: 0; }
.join-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: clamp(30px, 5vw, 70px); align-items: start; }
.join-copy p:not(.lead) { color: var(--ink-2); }
.join-copy p.muted { color: var(--ink-3); }
.join-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.ticket { position: relative; border-radius: 24px; padding: 26px 28px; overflow: hidden;
  background: radial-gradient(circle at 0 62%, transparent 14px, var(--glass-2) 15px) left / 51% 100% no-repeat, radial-gradient(circle at 100% 62%, transparent 14px, var(--glass-2) 15px) right / 51% 100% no-repeat;
}
.ticket::before { content: ""; position: absolute; inset: 0; border-radius: inherit; border: 1px solid var(--line-2); pointer-events: none; mask: radial-gradient(circle at 0 62%, transparent 15px, #000 16px) left / 51% 100% no-repeat, radial-gradient(circle at 100% 62%, transparent 15px, #000 16px) right / 51% 100% no-repeat; -webkit-mask: radial-gradient(circle at 0 62%, transparent 15px, #000 16px) left / 51% 100% no-repeat, radial-gradient(circle at 100% 62%, transparent 15px, #000 16px) right / 51% 100% no-repeat; }
.ticket-head { display: flex; align-items: center; gap: 10px; margin: 0 0 18px; font-size: 14px; letter-spacing: .14em; color: var(--ink-2); }
.ticket-code { margin-left: auto; font-family: var(--mono); font-size: 11px; color: var(--sky); letter-spacing: .2em; }
.ticket dl { margin: 0; }
.ticket dl div { display: flex; justify-content: space-between; gap: 16px; padding: 13px 0; border-top: 1px dashed var(--line-2); }
.ticket dt { color: var(--ink-3); font-size: 14.5px; }
.ticket dd { margin: 0; text-align: right; font-size: 15.5px; }
.ticket .pending { color: var(--sky); font-family: var(--mono); font-size: 13px; letter-spacing: .12em; }
.ticket .pending::before { content: "◌ "; }
.ticket-foot { margin: 14px 0 0; padding-top: 16px; border-top: 1px dashed var(--line-2); font-size: 13.5px; color: var(--ink-3); }

.finale { min-height: 78vh; display: grid; place-items: center; text-align: center; padding: 18vh var(--gutter) 10vh; }
.finale-line { margin: 0; display: grid; gap: 18px; justify-items: center; }
.finale-small { font-size: clamp(.95rem, 1.4vw, 1.2rem); letter-spacing: .5em; padding-left: .5em; color: var(--ink-2); }
.finale-big { font-size: clamp(3rem, 10.5vw, 11rem); font-weight: 800; line-height: 1.04; letter-spacing: -.02em; display: flex; flex-wrap: wrap; justify-content: center; }
.drop { display: inline-block; white-space: nowrap; }
html.js .drop .ch { display: inline-block; opacity: 0; transform: translateY(-90%) scale(.9, 1.25); transform-origin: 50% 100%; }
html.js .finale.in .drop .ch { animation: drop 1.15s var(--out) both; animation-delay: calc(var(--i) * 85ms + .2s); }
html.js .finale.in .drop.accent .ch { animation-delay: calc(var(--i) * 85ms + .75s); }
@keyframes drop {
  0% { opacity: 0; transform: translateY(-90%) scale(.9, 1.25); }
  40% { opacity: 1; transform: translateY(0) scale(1.16, .8); }
  58% { transform: translateY(-8%) scale(.96, 1.06); }
  76% { transform: translateY(0) scale(1.03, .97); }
  100% { opacity: 1; transform: none; }
}
.footer { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 28px; padding-block: 28px 70px; border-top: 1px solid var(--line); font-size: 14px; color: var(--ink-3); }
.footer-brand { color: var(--ink); font-weight: 700; letter-spacing: .2em; }
.footer a { margin-left: auto; color: var(--ink-2); display: inline-flex; gap: 6px; }
.footer a:hover { color: var(--ice); }
.motion-toggle { font-size: 13px; letter-spacing: .1em; padding: 6px 12px; border: 1px solid var(--line-2); border-radius: 999px; color: var(--ink-2); }
.motion-toggle:hover { border-color: var(--sky); }

/* ───────── 对话框 ───────── */
.sheet { width: min(920px, calc(100vw - 32px)); max-height: min(88vh, 1000px); padding: 0; border: 1px solid var(--line-2); border-radius: 24px; color: var(--ink); overflow: auto; overscroll-behavior: contain;
  background: rgba(5, 13, 32, .96); box-shadow: 0 40px 120px -20px rgba(0, 0, 0, .9), 0 0 0 1px rgba(47, 107, 255, .1); }
.sheet::backdrop { background: rgba(1, 4, 12, .72); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.sheet-bar { position: sticky; top: 0; z-index: 2; display: flex; align-items: center; gap: 14px; padding: 14px 16px 14px 24px; background: rgba(5, 13, 32, .94); border-bottom: 1px solid var(--line); backdrop-filter: blur(10px); }
.sheet-bar h2 { font-size: 16px; font-weight: 600; letter-spacing: .04em; flex: 1; }
.sheet-tag { font-family: var(--mono); font-size: 12px; letter-spacing: .14em; color: var(--ink-3); flex: 1; }
.sheet-tools { display: flex; gap: 8px; align-items: center; }
.sheet-close { width: 38px; height: 38px; border-radius: 50%; font-size: 22px; line-height: 1; border: 1px solid var(--line-2); flex: none; }
.sheet-close:hover { border-color: var(--sky); }
.evidence { width: min(1040px, calc(100vw - 32px)); }
.evidence-body { padding: 18px; }
.evidence-body img { width: 100%; height: auto; border-radius: 14px; background: #0a1430; }
.evidence-caption { margin: 14px 4px 4px; color: var(--ink-2); font-size: 15px; }
.reader-progress { position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; }
.reader-progress i { display: block; height: 100%; background: linear-gradient(90deg, var(--blue), var(--sky)); transform-origin: 0 50%; transform: scaleX(0); }
.article { padding: clamp(26px, 5vw, 60px) clamp(22px, 6vw, 80px) 60px; max-width: 760px; margin: 0 auto; font-size: 17px; line-height: 1.95; color: var(--ink-2); }
.article h1 { font-size: clamp(1.6rem, 3vw, 2.2rem); color: var(--ink); line-height: 1.4; margin-bottom: 10px; }
.article h2 { font-size: 1.3rem; color: var(--ink); margin: 2.2em 0 .8em; padding-top: 1.2em; border-top: 1px solid var(--line); }
.article h3 { font-size: 1.08rem; color: var(--ice); margin: 1.6em 0 .4em; }
.article ul { padding-left: 1.2em; }
.article li { margin: .3em 0; }
.article-slogan { color: var(--sky); font-size: 1.15rem; letter-spacing: .1em; }

.toast { position: fixed; left: 50%; bottom: 30px; z-index: 150; transform: translate(-50%, 20px); opacity: 0; pointer-events: none; padding: 12px 20px; border-radius: 999px; font-size: 14.5px;
  background: rgba(10, 26, 62, .95); border: 1px solid var(--line-2); box-shadow: 0 20px 50px -10px rgba(0, 0, 0, .7); transition: opacity .3s, transform .6s var(--spring); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ───────── 响应式 ───────── */
/* ───────── 背景音乐 ───────── */
.sound-toggle { display: inline-flex; align-items: center; gap: 8px; height: 38px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--line-2); background: rgba(6, 16, 40, .45); font-size: 13px; letter-spacing: .08em; color: var(--ink-2); transition: border-color .3s, color .3s; }
.sound-toggle:hover { border-color: var(--sky); color: var(--ink); }
.eq { display: inline-flex; align-items: flex-end; gap: 2px; height: 14px; }
.eq i { width: 2.5px; height: 4px; border-radius: 2px; background: currentColor; transition: height .3s; }
.sound-toggle.is-on { color: var(--ice); border-color: rgba(140, 200, 255, .6); }
.sound-toggle.is-on .eq i { animation: eq 1.1s ease-in-out infinite; }
.sound-toggle.is-on .eq i:nth-child(2) { animation-delay: -.3s; } .sound-toggle.is-on .eq i:nth-child(3) { animation-delay: -.6s; } .sound-toggle.is-on .eq i:nth-child(4) { animation-delay: -.15s; }
@keyframes eq { 0%, 100% { height: 4px; } 50% { height: 14px; } }

/* ───────── 探测器：足尖、地形、步态分组 ───────── */
.rover-head { flex-wrap: wrap; }
.tip-switch { display: inline-flex; align-items: center; gap: 4px; padding: 4px; border-radius: 999px; border: 1px solid var(--line); background: rgba(2, 8, 22, .7); margin-right: auto; margin-left: 12px; }
.tip-switch > span { font-size: 12px; color: var(--ink-3); padding: 0 8px 0 6px; letter-spacing: .1em; }
.tip-switch button { padding: 5px 12px; border-radius: 999px; font-size: 12.5px; color: var(--ink-2); transition: background-color .3s, color .3s; }
.tip-switch button[aria-pressed="true"] { background: var(--blue); color: #fff; }
.tip-switch button:hover { color: var(--ice); }
#rover .ft-gap, #rover .ft-claw, #rover .ft-mag, #rover .rv-terrain > g { display: none; }
#rover.tip-std .ft-std, #rover.tip-gap .ft-gap, #rover.tip-claw .ft-claw, #rover.tip-mag .ft-mag { display: inline; }
#rover.tip-gap .ft-std, #rover.tip-claw .ft-std, #rover.tip-mag .ft-std { display: none; }
#rover.tip-gap .tr-gap, #rover.tip-claw .tr-claw, #rover.tip-mag .tr-mag { display: inline; }
.rv-prong { fill: none; stroke: var(--ice); stroke-width: 3; stroke-linecap: round; }
.rv-spike { stroke: var(--ice); stroke-width: 1.6; stroke-linecap: round; }
.rv-coil { stroke: rgba(2, 8, 22, .8); stroke-width: 1.4; }
.rv-field { fill: rgba(140, 255, 216, .5); filter: blur(3px); opacity: 0; }
.rv-leg.far .rv-prong, .rv-leg.far .rv-spike { stroke: rgba(140, 200, 255, .4); }
.rv-crack { fill: rgba(1, 4, 12, .95); stroke: rgba(140, 200, 255, .35); stroke-width: 1; }
.rv-pebble { fill: rgba(70, 110, 190, .75); stroke: rgba(140, 200, 255, .3); stroke-width: .6; }
.rv-glint { stroke: rgba(200, 230, 255, .8); stroke-width: 2; stroke-linecap: round; filter: drop-shadow(0 0 3px #8cc8ff); }
#rover.tip-mag .rv-ground { stroke: #cfe6ff; fill: url(#groundFill); }
#rover.show-groups .grp-a .rv-limb { stroke: var(--mint); }
#rover.show-groups .grp-b .rv-limb { stroke: var(--sky); }
#rover.show-groups .rv-leg.far.grp-a .rv-limb { stroke: rgba(140, 255, 216, .45); }
#rover.show-groups .rv-leg.far.grp-b .rv-limb { stroke: rgba(140, 200, 255, .45); }

/* ───────── 拆开看看探微号 ───────── */
.probe { margin-top: clamp(40px, 7vh, 80px); }
.probe-head { max-width: 760px; margin-bottom: 24px; }
.probe-head h3 { font-size: clamp(1.6rem, 3vw, 2.4rem); margin: 14px 0 10px; }
.probe-head .muted { font-size: 15px; }
.probe-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 20px; align-items: start; }
.probe-film { margin: 0; position: sticky; top: 90px; border-radius: 24px; overflow: hidden; border: 1px solid var(--line); background: #030a1c; }
.probe-film video { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; background: #030a1c; }
.probe-film figcaption { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px 10px 18px; font-size: 13px; color: var(--ink-3); letter-spacing: .08em; border-top: 1px solid var(--line); }
.film-toggle { width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--line-2); font-size: 12px; color: var(--ice); }
.probe-panel { border-radius: 24px; border: 1px solid var(--line); background: rgba(5, 14, 36, .9); padding: 18px 20px 22px; min-width: 0; }
.probe-tabs { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; padding-bottom: 14px; border-bottom: 1px solid var(--line); margin-bottom: 18px; }
.probe-tabs button { flex: none; display: inline-flex; align-items: baseline; gap: 6px; padding: 8px 13px; border-radius: 10px; font-size: 14.5px; color: var(--ink-3); transition: color .3s, background-color .3s; }
.probe-tabs b { font-family: var(--mono); font-weight: 400; font-size: 10.5px; color: var(--sky); opacity: .7; }
.probe-tabs button[aria-selected="true"] { color: var(--ink); background: rgba(47, 107, 255, .2); }
.probe-tabs button:hover { color: var(--ice); }
.probe-pane h4 { font-size: 20px; margin: 0 0 8px; }
.probe-pane > p { color: var(--ink-2); font-size: 15px; }
.probe-pane p b { color: var(--ice); font-weight: 600; }
.probe-pane.enter > * { animation: paneIn .7s var(--spring-soft) both; }
.probe-pane.enter > *:nth-child(2) { animation-delay: .05s; } .probe-pane.enter > *:nth-child(3) { animation-delay: .1s; } .probe-pane.enter > *:nth-child(4) { animation-delay: .15s; } .probe-pane.enter > *:nth-child(5) { animation-delay: .2s; }
@keyframes paneIn { from { opacity: 0; transform: translateY(14px); } }
.note { font-size: 13px; color: var(--ink-3); border-left: 2px solid var(--line-2); padding-left: 12px; margin-top: 14px; }

.leg-lab { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 16px; align-items: center; padding: 12px; border-radius: 16px; background: rgba(2, 8, 22, .7); border: 1px solid var(--line); margin-bottom: 14px; }
.leg-lab svg { width: 100%; height: auto; overflow: visible; }
.leg-ground { stroke: rgba(140, 200, 255, .35); stroke-dasharray: 3 5; }
.leg-body { fill: rgba(47, 107, 255, .55); stroke: var(--sky); stroke-width: 1.4; }
.leg-link1, .leg-link2 { stroke: var(--ice); stroke-width: 7; stroke-linecap: round; fill: none; }
.leg-j { fill: var(--blue); stroke: var(--ice); stroke-width: 1.5; transition: fill .3s; }
.leg-top circle:first-child { fill: none; stroke: var(--line-2); stroke-dasharray: 2 4; }
.leg-top circle:last-child { fill: var(--blue); stroke: var(--ice); }
.leg-yaw { stroke: var(--mint); stroke-width: 3; stroke-linecap: round; }
.leg-lab svg[data-active="yaw"] .j1, .leg-lab svg[data-active="knee"] .j2, .leg-lab svg[data-active="tip"] .j3 { fill: var(--mint); }
.leg-lab svg.touch .j3 { filter: drop-shadow(0 0 6px #8cffd8); }
.leg-sliders { display: grid; gap: 12px; }
.leg-sliders label { display: grid; gap: 4px; font-size: 13px; color: var(--ink-2); }
.leg-sliders output { font-family: var(--mono); color: var(--sky); margin-left: 6px; }
input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; height: 22px; background: transparent; cursor: pointer; }
input[type=range]::-webkit-slider-runnable-track { height: 3px; border-radius: 3px; background: linear-gradient(90deg, var(--blue), var(--sky)); }
input[type=range]::-moz-range-track { height: 3px; border-radius: 3px; background: linear-gradient(90deg, var(--blue), var(--sky)); }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 16px; height: 16px; margin-top: -6.5px; border-radius: 50%; background: #fff; box-shadow: 0 0 0 4px rgba(79, 141, 255, .3); }
input[type=range]::-moz-range-thumb { width: 16px; height: 16px; border: 0; border-radius: 50%; background: #fff; box-shadow: 0 0 0 4px rgba(79, 141, 255, .3); }
.probe-figs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 14px; }
.fig { position: relative; display: block; width: 100%; border-radius: 14px; overflow: hidden; border: 1px solid var(--line); background: #030a1c; text-align: left; }
.fig img { display: block; width: 100%; height: 150px; object-fit: cover; transition: transform .8s var(--out); }
.fig.paper { background: #f4f7fc; }
.fig.paper img { object-fit: contain; padding: 8px; }
.fig-wide img { height: 190px; }
.fig:hover img { transform: scale(1.04); }
.fig span { position: absolute; left: 8px; bottom: 8px; padding: 3px 9px; border-radius: 999px; font-size: 11.5px; background: rgba(2, 8, 22, .8); color: var(--ice); }
.specs { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.specs li { font-size: 14px; color: var(--ink-2); padding: 10px 12px; border-radius: 12px; background: rgba(2, 8, 22, .55); border: 1px solid var(--line); }
.specs b { display: block; font-size: 12px; color: var(--sky); letter-spacing: .12em; margin-bottom: 2px; }
.tip-cards { display: grid; gap: 8px; margin-bottom: 12px; }
.tip-cards button { text-align: left; display: grid; gap: 4px; padding: 12px 14px; border-radius: 14px; border: 1px solid var(--line); background: rgba(2, 8, 22, .55); transition: border-color .3s, background-color .3s, transform .5s var(--spring); }
.tip-cards b { font-size: 15px; }
.tip-cards span { font-size: 13.5px; color: var(--ink-3); line-height: 1.65; }
.tip-cards button:hover { border-color: var(--sky); transform: translateX(3px); }
.tip-cards button[aria-pressed="true"] { border-color: var(--mint); background: rgba(20, 60, 90, .5); }
.tip-cards button[aria-pressed="true"] b { color: var(--mint); }
.gait-chart { border-radius: 14px; background: rgba(2, 8, 22, .7); border: 1px solid var(--line); padding: 10px; margin-bottom: 12px; }
.gait-chart canvas { display: block; width: 100%; height: 170px; }
.gait-legend { display: flex; gap: 16px; font-size: 12px; color: var(--ink-3); padding: 6px 4px 0; }
.gait-legend span::before { content: ""; display: inline-block; width: 12px; height: 8px; border-radius: 2px; margin-right: 6px; vertical-align: 0; }
.gait-legend .a::before { background: var(--mint); } .gait-legend .b::before { background: var(--sky); } .gait-legend .st::before { background: rgba(140, 180, 255, .2); }
.switch { display: inline-flex; align-items: center; gap: 10px; font-size: 14px; color: var(--ink-2); cursor: pointer; }
.switch input { position: absolute; opacity: 0; }
.switch span { width: 40px; height: 22px; border-radius: 999px; background: rgba(140, 180, 255, .2); position: relative; transition: background-color .3s; flex: none; }
.switch span::after { content: ""; position: absolute; left: 3px; top: 3px; width: 16px; height: 16px; border-radius: 50%; background: #fff; transition: transform .5s var(--spring); }
.switch input:checked + span { background: var(--blue); }
.switch input:checked + span::after { transform: translateX(18px); }
.switch input:focus-visible + span { outline: 2px solid var(--sky); outline-offset: 3px; }
.pipeline, .mission { list-style: none; padding: 0; margin: 0 0 14px; counter-reset: s; }
.pipeline { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
.pipeline li { padding: 10px 8px; border-radius: 12px; border: 1px solid var(--line); background: rgba(2, 8, 22, .55); text-align: center; display: grid; gap: 2px; animation: flowStep 6s ease-in-out infinite; }
.pipeline li:nth-child(1) { animation-delay: 0s; } .pipeline li:nth-child(2) { animation-delay: 1.2s; } .pipeline li:nth-child(3) { animation-delay: 2.4s; } .pipeline li:nth-child(4) { animation-delay: 3.6s; } .pipeline li:nth-child(5) { animation-delay: 4.8s; }
.pipeline b { font-size: 13px; }
.pipeline span { font-size: 11px; color: var(--ink-3); }
.mission { display: grid; gap: 0; position: relative; }
.mission li { counter-increment: s; position: relative; padding: 8px 0 12px 44px; }
.mission li::before { content: counter(s, decimal-leading-zero); position: absolute; left: 0; top: 7px; width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; font-family: var(--mono); font-size: 11px; color: var(--sky); border: 1px solid var(--line-2); background: #050f26; z-index: 1; }
.mission li:not(:last-child)::after { content: ""; position: absolute; left: 15px; top: 37px; bottom: -7px; width: 1px; background: linear-gradient(var(--line-2), transparent); }
.mission b { display: block; font-size: 15px; }
.mission span { font-size: 13.5px; color: var(--ink-3); }
.compare { position: relative; --cut: 50%; border-radius: 14px; overflow: hidden; background: #fff; max-width: 420px; margin: 4px auto 0; aspect-ratio: 1; }
.compare img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.compare-top { position: absolute; inset: 0; clip-path: inset(0 calc(100% - var(--cut)) 0 0); background: #fff; }
.compare-line { position: absolute; top: 0; bottom: 0; left: var(--cut); width: 2px; margin-left: -1px; background: var(--blue); box-shadow: 0 0 10px rgba(47, 107, 255, .8); pointer-events: none; }
.compare-line::after { content: "⟷"; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 30px; height: 30px; border-radius: 50%; background: var(--blue); color: #fff; display: grid; place-items: center; font-size: 13px; }
.compare input { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: ew-resize; margin: 0; }
.compare-tag { position: absolute; top: 8px; padding: 3px 9px; border-radius: 999px; font-size: 11.5px; background: rgba(2, 8, 22, .85); color: var(--ice); z-index: 1; pointer-events: none; }
.compare-tag.l { left: 8px; } .compare-tag.r { right: 8px; }

/* ───────── 08 同行 · 成员风采 ───────── */
.team-lead { color: var(--ink-2); margin-top: 20px; max-width: 36em; }
.gallery { columns: 3 300px; column-gap: 14px; }
.ph { break-inside: avoid; margin: 0 0 14px; position: relative; border-radius: 18px; overflow: hidden; aspect-ratio: var(--ratio); background-size: cover; background-position: center; border: 1px solid var(--line);
  opacity: 0; transform: translateY(40px) scale(.97); transition: opacity .9s ease var(--d), transform 1.1s var(--spring-soft) var(--d), border-color .4s; }
.ph.in { opacity: 1; transform: none; }
.ph button { display: block; width: 100%; height: 100%; padding: 0; }
.ph img { display: block; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity .6s ease, transform 1.2s var(--out), filter .6s; }
.ph.loaded img { opacity: 1; }
.ph::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(180deg, transparent 55%, rgba(2, 6, 16, .55)); opacity: 0; transition: opacity .4s; }
.ph:hover { border-color: var(--line-2); }
.ph:hover img { transform: scale(1.045); }
.ph:hover::after { opacity: 1; }
.ph figcaption { position: absolute; left: 14px; right: 14px; bottom: 12px; z-index: 1; font-size: 13.5px; color: #fff; opacity: 0; transform: translateY(8px); transition: opacity .4s, transform .5s var(--spring); pointer-events: none; }
.ph:hover figcaption { opacity: 1; transform: none; }
.lightbox { width: 100vw; height: 100vh; max-width: none; max-height: none; margin: 0; padding: 0; border: 0; background: transparent; color: var(--ink); overflow: hidden; }
.lightbox::backdrop { background: rgba(1, 4, 12, .92); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.lightbox[open] { display: grid; place-items: center; }
.lightbox figure { margin: 0; display: grid; justify-items: center; gap: 12px; max-width: calc(100vw - 120px); }
.lightbox img { max-width: calc(100vw - 120px); max-height: calc(100vh - 110px); width: auto; height: auto; object-fit: contain; border-radius: 12px; background-size: cover; background-position: center; box-shadow: 0 30px 90px -20px rgba(0, 0, 0, .9);
  opacity: .5; filter: blur(6px); transform: translateX(var(--from, 0)); transition: opacity .5s, filter .5s, transform .6s var(--out); }
.lightbox img.ready { opacity: 1; filter: none; transform: none; }
.lightbox figcaption { display: flex; gap: 18px; font-size: 14px; color: var(--ink-2); }
.lb-count { font-family: var(--mono); color: var(--ink-3); }
.lb-btn { position: fixed; top: 50%; transform: translateY(-50%); width: 48px; height: 48px; border-radius: 50%; border: 1px solid var(--line-2); background: rgba(5, 14, 36, .8); font-size: 18px; transition: border-color .3s, background-color .3s; }
.lb-btn:hover { border-color: var(--sky); background: rgba(47, 107, 255, .3); }
.lb-prev { left: 20px; } .lb-next { right: 20px; }
.lb-close { position: fixed; top: 18px; right: 20px; background: rgba(5, 14, 36, .8); }
.ticket-link { color: var(--sky); border-bottom: 1px solid currentColor; }
.ticket-link:hover { color: var(--ice); }

@media (max-width: 1180px) {
  .rail { display: none; }
  .rover-notes { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .lab-grid, .native-grid, .join-grid { grid-template-columns: 1fr; }
  .paths, .values { grid-template-columns: 1fr; }
  .steps-list { grid-template-columns: repeat(2, 1fr); row-gap: 28px; }
  .hud-chapter { display: none; }
}
@media (max-width: 760px) {
  body { font-size: 16px; line-height: 1.75; }
  .topbar { padding: 14px 18px; }
  .topbar .pill-ghost, .topbar .pill-solid { display: none; }
  .menu-toggle { display: block; }
  .brand-mark { width: 32px; height: 32px; }
  .brand-badge { width: auto; height: 36px; }
  .hero { align-content: end; padding-block: 52vh 150px; padding-block: 52svh 150px; }
  .hero-title { font-size: clamp(2.7rem, 13vw, 4.2rem); }
  .hero-motto { letter-spacing: .22em; }
  .hero-actions .btn { height: 50px; padding: 0 20px; font-size: 15px; }
  .hero-foot { bottom: 48px; flex-direction: column; align-items: flex-start; gap: 8px; }
  .hint { display: none; }
  .hud { bottom: 14px; font-size: 10px; }
  .chapter { padding-block: 96px; }
  .chapter-head.center { text-align: left; justify-items: start; }
  .explore { align-content: start; padding-top: 46vh; }
  .rover-stage { padding: 16px 12px 12px; border-radius: 22px; margin-inline: calc(var(--gutter) * -.4); }
  .rover-notes { grid-template-columns: 1fr 1fr; }
  .rover-notes li:last-child { grid-column: span 2; }
  .rover-notes button { padding: 10px 12px; }
  .flow ol { gap: 5px; }
  .flow b { font-size: 13.5px; letter-spacing: .04em; }
  .lab-card { padding: 16px; border-radius: 22px; }
  .lab-canvas { aspect-ratio: 4 / 3.4; }
  .lab-readout dd { font-size: 15px; }
  .key { padding: 9px 13px; font-size: 14px; }
  .key kbd { display: none; }
  .life { flex-direction: column; gap: 14px; }
  .steps-line { display: none; }
  .steps-list { grid-template-columns: 1fr; gap: 18px; padding-top: 0; border-left: 2px solid var(--line); padding-left: 20px; }
  .steps-list li { position: relative; }
  .steps-list li::before { content: ""; position: absolute; left: -27px; top: .55em; width: 12px; height: 12px; border-radius: 50%; background: var(--bg-2); border: 2px solid var(--line-2); transition: background-color .4s, border-color .4s; }
  .steps-list li.on::before { background: var(--sky); border-color: var(--sky); box-shadow: 0 0 14px rgba(79, 141, 255, .9); }
  .human { padding-top: 50vh; }
  .ticket { padding: 22px 20px; }
  .finale { min-height: 64vh; padding-top: 12vh; }
  .footer { padding-bottom: 54px; }
  .footer a { margin-left: 0; }
  .sheet { border-radius: 20px; max-height: 90vh; }
}

/* ───────── 减少动效 ───────── */
html.reduce-motion *, html.reduce-motion *::before, html.reduce-motion *::after { animation-duration: .001s !important; animation-iteration-count: 1 !important; transition-duration: .001s !important; transition-delay: 0s !important; }
html.reduce-motion .split .ch, html.reduce-motion .reveal, html.reduce-motion .drop .ch { opacity: 1 !important; transform: none !important; }
html.reduce-motion .flow li { animation: none !important; }
@media print {
  #world, .light-field, .grain, .cursor, .topbar, .rail, .hud, .intro, .rover-stage, .lab { display: none !important; }
  body { background: #fff; color: #000; }
  html.js .split .ch, html.js .reveal { opacity: 1; transform: none; }
}

/* ───────── 新增板块的响应式 ───────── */
@media (max-width: 1000px) {
  .probe-grid { grid-template-columns: 1fr; }
  .probe-film { position: relative; top: 0; }
}
@media (max-width: 760px) {
  .sound-toggle { height: 38px; padding: 0 12px; }
  .sound-label { display: none; }
  .tip-switch { margin: 8px 0 0; order: 3; width: 100%; overflow-x: auto; }
  .tip-switch button { white-space: nowrap; padding: 5px 10px; }
  .probe-panel { padding: 14px 12px 16px; border-radius: 20px; }
  .leg-lab { grid-template-columns: 1fr; }
  .pipeline { grid-template-columns: repeat(3, 1fr); }
  .probe-figs { grid-template-columns: 1fr 1fr; }
  .fig img { height: 120px; }
  .gallery { columns: 2 150px; column-gap: 10px; }
  .ph { margin-bottom: 10px; border-radius: 14px; }
  .lightbox figure, .lightbox img { max-width: calc(100vw - 20px); }
  .lightbox img { max-height: calc(100vh - 140px); }
  .lb-btn { top: auto; bottom: 22px; transform: none; width: 44px; height: 44px; }
  .lb-prev { left: calc(50% - 60px); } .lb-next { right: calc(50% - 60px); }
}