/* ══════════════════════════════════════════════════════════════
   CallMeHFK · PROJECT LAB — 展厅级暗色动效设计系统
   基底与主站一致：#0a0e13 + IBM Plex Mono；每页用 --p 注入项目色
   ══════════════════════════════════════════════════════════════ */
:root {
  color-scheme: dark;
  --bg: #05070b;
  --bg-2: #0a0e13;
  --panel: rgba(17, 24, 33, 0.72);
  --panel-solid: #0d1117;
  --line: rgba(48, 54, 61, 0.8);
  --line-soft: rgba(33, 38, 45, 0.6);
  --text: #c9d1d9;
  --muted: #8b949e;
  --bright: #f0f6fc;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas,
    "Liberation Mono", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    monospace;
  --p: #e06a2d;                    /* 项目主色（每页覆盖） */
  --p-rgb: 224, 106, 45;
  --p2: #79c0ff;                   /* 渐变色 2 */
  --p2-rgb: 121, 192, 255;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { overflow-x: hidden; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.75;
  min-height: 100vh;
  cursor: default;
}

::selection { background: rgba(var(--p-rgb), 0.45); color: #fff; }

.skip-link { position: fixed; left: -9999px; top: 0; }
.skip-link:focus {
  left: 0.6rem; top: 0.6rem; z-index: 200;
  padding: 0.4rem 0.7rem;
  background: var(--p); color: var(--bg);
  border-radius: 6px; font-weight: 600;
}

/* ── 背景层：粒子 canvas + 极光 + 网格 + 暗角 ─────────────── */
#bg-canvas {
  position: fixed; inset: 0; z-index: 0;
  width: 100%; height: 100%;
  pointer-events: none;
}
.aurora {
  position: fixed; inset: -20%; z-index: 0; pointer-events: none;
  background:
    radial-gradient(38% 32% at 18% 22%, rgba(var(--p-rgb), 0.16), transparent 70%),
    radial-gradient(32% 30% at 82% 18%, rgba(var(--p2-rgb), 0.12), transparent 70%),
    radial-gradient(40% 38% at 55% 88%, rgba(var(--p-rgb), 0.09), transparent 70%);
  filter: blur(10px);
  animation: aurora-drift 26s ease-in-out infinite alternate;
}
@keyframes aurora-drift {
  0%   { transform: translate3d(-2%, -1%, 0) rotate(-1deg) scale(1); }
  50%  { transform: translate3d(2%, 2%, 0) rotate(1deg) scale(1.06); }
  100% { transform: translate3d(-1%, 1%, 0) rotate(-0.5deg) scale(1.02); }
}
.grid-overlay {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(var(--p-rgb), 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--p-rgb), 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 75%);
}
.vignette {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 52%, rgba(0, 0, 0, 0.5) 100%);
}

/* ── 光标辉光（仅精确指针设备） ─────────────────────────── */
#cursor-glow {
  position: fixed; z-index: 2; pointer-events: none;
  width: 520px; height: 520px; left: 0; top: 0;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(var(--p-rgb), 0.07) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.6s ease;
}
@media (pointer: fine) { #cursor-glow.on { opacity: 1; } }

/* ── 顶部滚动进度条 ─────────────────────────────────────── */
#progress {
  position: fixed; top: 0; left: 0; z-index: 60;
  width: 100%; height: 2px;
  background: linear-gradient(90deg, var(--p), var(--p2));
  transform-origin: 0 50%;
  transform: scaleX(0);
  box-shadow: 0 0 12px rgba(var(--p-rgb), 0.8);
}

/* ── 导航 ───────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; gap: 20px;
  padding: 14px 28px;
  background: linear-gradient(180deg, rgba(5, 7, 11, 0.9), rgba(5, 7, 11, 0));
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  transition: background 0.4s ease, border-color 0.4s ease;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(5, 7, 11, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--line-soft);
}
.nav-logo {
  font-weight: 600; font-size: 13px; letter-spacing: 0.12em;
  color: var(--bright); text-decoration: none;
  display: flex; align-items: center; gap: 9px;
}
.nav-logo .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--p);
  box-shadow: 0 0 10px rgba(var(--p-rgb), 0.9);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: 0.35; transform: scale(0.8); } }
.nav-links { margin-left: auto; display: flex; gap: 4px; }
.nav-links a {
  color: var(--muted); text-decoration: none; font-size: 12.5px;
  letter-spacing: 0.08em; padding: 6px 13px; border-radius: 6px;
  border: 1px solid transparent;
  transition: color 0.25s, border-color 0.25s, background 0.25s;
}
.nav-links a:hover {
  color: var(--bright); border-color: var(--line);
  background: rgba(var(--p-rgb), 0.08);
}
.nav-links a.active { color: var(--p); }

/* ── HERO ───────────────────────────────────────────────── */
.hero {
  position: relative; z-index: 3;
  min-height: 100svh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
}
.kicker {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px; letter-spacing: 0.34em; color: var(--p);
  text-transform: uppercase;
  border: 1px solid rgba(var(--p-rgb), 0.35);
  background: rgba(var(--p-rgb), 0.07);
  padding: 8px 18px; border-radius: 100px;
  margin-bottom: 34px;
  box-shadow: 0 0 30px rgba(var(--p-rgb), 0.15) inset;
}
.kicker::before, .kicker::after { content: "//"; opacity: 0.5; }

.hero-title {
  position: relative;
  font-size: clamp(44px, 9.5vw, 118px);
  font-weight: 600; line-height: 1.04;
  letter-spacing: -0.02em; color: var(--bright);
  margin-bottom: 26px;
  word-break: normal; overflow-wrap: break-word; hyphens: auto;
}
/* 长名称降档，避免顶满屏宽 / 生硬断词 */
.hero-title.long  { font-size: clamp(32px, 6vw, 84px); }
.hero-title.xlong { font-size: clamp(28px, 5.2vw, 68px); }
.hero-title .grad {
  background: linear-gradient(100deg, var(--bright) 10%, var(--p) 55%, var(--p2) 95%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
/* 故障抖动层 */
.glitch { position: relative; display: inline-block; }
.glitch::before, .glitch::after {
  content: attr(data-text);
  position: absolute; inset: 0;
  background: none;
  opacity: 0;
  pointer-events: none;
}
.glitch:hover::before {
  opacity: 0.8; color: var(--p);
  -webkit-text-fill-color: var(--p);
  animation: glitch-a 0.55s steps(2) infinite;
  clip-path: polygon(0 0, 100% 0, 100% 42%, 0 42%);
}
.glitch:hover::after {
  opacity: 0.8; color: var(--p2);
  -webkit-text-fill-color: var(--p2);
  animation: glitch-b 0.55s steps(2) infinite reverse;
  clip-path: polygon(0 58%, 100% 58%, 100% 100%, 0 100%);
}
@keyframes glitch-a {
  0% { transform: translate(-4px, -2px); } 50% { transform: translate(3px, 1px); }
  100% { transform: translate(-2px, 2px); }
}
@keyframes glitch-b {
  0% { transform: translate(4px, 2px); } 50% { transform: translate(-3px, -1px); }
  100% { transform: translate(2px, -2px); }
}

.hero-tag {
  font-size: clamp(16px, 2.6vw, 24px);
  color: var(--text); max-width: 760px;
  margin-bottom: 14px; font-weight: 500;
}
.hero-tag .hl { color: var(--p); }
.hero-sub { color: var(--muted); font-size: 13.5px; letter-spacing: 0.14em; margin-bottom: 40px; }

.chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 44px; }
.chip {
  font-size: 12px; color: var(--muted);
  border: 1px solid var(--line); border-radius: 100px;
  padding: 6px 15px;
  background: rgba(13, 17, 23, 0.6);
  transition: border-color 0.3s, color 0.3s, transform 0.3s;
}
.chip:hover { border-color: rgba(var(--p-rgb), 0.6); color: var(--text); transform: translateY(-2px); }
.chip b { color: var(--p); font-weight: 600; }
.chip.ok { border-color: rgba(63, 185, 80, 0.35); }
.chip.ok b { color: #3fb950; }

.cta-row { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }
.btn {
  position: relative; overflow: hidden;
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 13.5px; font-weight: 600;
  letter-spacing: 0.06em; text-decoration: none;
  padding: 14px 30px; border-radius: 10px;
  transition: transform 0.25s var(--ease-spring), box-shadow 0.3s ease;
  will-change: transform;
}
.btn-primary {
  color: #0a0e13;
  background: linear-gradient(120deg, var(--p), var(--p2));
  box-shadow: 0 8px 32px rgba(var(--p-rgb), 0.35);
}
.btn-primary:hover { box-shadow: 0 12px 44px rgba(var(--p-rgb), 0.55); }
.btn-ghost {
  color: var(--text);
  border: 1px solid var(--line);
  background: rgba(13, 17, 23, 0.55);
}
.btn-ghost:hover { border-color: rgba(var(--p-rgb), 0.7); color: var(--bright); }
.btn .shine {
  position: absolute; top: 0; left: -80%;
  width: 50%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: skewX(-20deg);
  animation: shine 3.4s ease-in-out infinite;
}
@keyframes shine { 0%, 60% { left: -80%; } 100% { left: 130%; } }

.scroll-hint {
  position: absolute; bottom: 34px; left: 50%; transform: translateX(-50%);
  color: var(--muted); font-size: 11px; letter-spacing: 0.3em;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.scroll-hint::after {
  content: ""; width: 1px; height: 44px;
  background: linear-gradient(180deg, var(--p), transparent);
  animation: drop 1.8s ease-in-out infinite;
}
@keyframes drop { 0% { transform: scaleY(0); transform-origin: top; } 55% { transform: scaleY(1); transform-origin: top; } 56% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* ── 关键词跑马灯 ───────────────────────────────────────── */
.marquee {
  position: relative; z-index: 3;
  border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft);
  overflow: hidden; white-space: nowrap;
  padding: 15px 0;
  background: rgba(5, 7, 11, 0.55);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track {
  display: inline-flex; gap: 44px;
  animation: marquee 30s linear infinite;
  will-change: transform;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }
.marquee-track span {
  color: var(--muted); font-size: 12.5px; letter-spacing: 0.22em;
  text-transform: uppercase;
}
.marquee-track span::before { content: "◆"; color: var(--p); margin-right: 44px; font-size: 9px; }

/* ── 通用 section ───────────────────────────────────────── */
.wrap { position: relative; z-index: 3; max-width: 1180px; margin: 0 auto; padding: 94px 28px; }
.sec-head { display: flex; align-items: baseline; gap: 18px; margin-bottom: 54px; }
.sec-num {
  font-size: 13px; color: var(--p); letter-spacing: 0.2em;
  border: 1px solid rgba(var(--p-rgb), 0.4); border-radius: 6px;
  padding: 4px 10px; background: rgba(var(--p-rgb), 0.07);
}
.sec-title { font-size: clamp(26px, 4.4vw, 42px); color: var(--bright); font-weight: 600; letter-spacing: -0.01em; }
.sec-title .prompt { color: var(--p); margin-right: 8px; }

.lede { color: var(--muted); max-width: 780px; font-size: 15.5px; }
.lede code, .flow code {
  color: var(--p); background: rgba(var(--p-rgb), 0.1);
  padding: 2px 7px; border-radius: 5px; font-size: 0.92em;
}

/* ── 卡片网格 + 3D 倾斜 ─────────────────────────────────── */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.card {
  position: relative;
  border: 1px solid var(--line); border-radius: 14px;
  background: var(--panel);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 30px 28px;
  transform-style: preserve-3d;
  transition: border-color 0.35s ease;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%),
    rgba(var(--p-rgb), 0.13), transparent 45%);
  opacity: 0; transition: opacity 0.35s;
  pointer-events: none;
}
.card:hover::before { opacity: 1; }
.card:hover { border-color: rgba(var(--p-rgb), 0.55); }
.card-icon {
  font-size: 26px; line-height: 1;
  width: 56px; height: 56px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(var(--p-rgb), 0.1);
  border: 1px solid rgba(var(--p-rgb), 0.3);
  margin-bottom: 20px;
  transform: translateZ(34px);
}
.card h3 { color: var(--bright); font-size: 16.5px; font-weight: 600; margin-bottom: 10px; transform: translateZ(24px); }
.card p { color: var(--muted); font-size: 13.5px; transform: translateZ(14px); }
.card .idx {
  position: absolute; top: 22px; right: 24px;
  font-size: 12px; color: rgba(var(--p-rgb), 0.6); letter-spacing: 0.14em;
}

/* ── 终端窗口 ───────────────────────────────────────────── */
.term {
  border: 1px solid var(--line); border-radius: 14px;
  background: #0a0d12;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(var(--p-rgb), 0.1);
  overflow: hidden;
}
.term-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 13px 18px;
  background: linear-gradient(180deg, #11161d, #0d1117);
  border-bottom: 1px solid var(--line-soft);
}
.term-bar i { width: 11px; height: 11px; border-radius: 50%; }
.term-bar .r { background: #ff5f56; } .term-bar .y { background: #ffbd2e; } .term-bar .g { background: #27c93f; }
.term-title { margin-left: 12px; color: var(--muted); font-size: 12px; letter-spacing: 0.1em; }
.term-body { padding: 24px 26px; font-size: 13.5px; line-height: 2.0; min-height: 120px; }
.term-body .ln { display: block; white-space: pre-wrap; word-break: break-all; }
.term-body .c { color: var(--p); }            /* 命令提示符 */
.term-body .ok { color: #3fb950; }
.term-body .out { color: var(--muted); }
.term-body .hl2 { color: var(--p2); }
.caret {
  display: inline-block; width: 8px; height: 16px;
  background: var(--p); vertical-align: -3px;
  animation: blink 1.05s steps(1) infinite;
  box-shadow: 0 0 8px rgba(var(--p-rgb), 0.8);
}
@keyframes blink { 50% { opacity: 0; } }

/* ── 架构流程块 ─────────────────────────────────────────── */
.flow {
  border: 1px solid var(--line); border-radius: 14px;
  background: linear-gradient(180deg, rgba(13, 17, 23, 0.85), rgba(10, 13, 18, 0.9));
  padding: 34px 30px;
  font-size: 13px; line-height: 1.9;
  overflow-x: auto;
  position: relative;
}
.flow::after {
  content: "";
  position: absolute; inset: 0; pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(255,255,255,0.016) 0 1px, transparent 1px 3px);
}
.flow pre { font-family: var(--font-mono); color: var(--text); }
.flow .dim { color: var(--muted); }
.flow .acc { color: var(--p); font-weight: 600; }
.flow .acc2 { color: var(--p2); }

/* ── 数据带 ─────────────────────────────────────────────── */
.stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px; background: var(--line-soft);
  border: 1px solid var(--line-soft); border-radius: 14px; overflow: hidden;
}
.stat {
  background: rgba(10, 13, 18, 0.92);
  padding: 38px 24px; text-align: center;
  transition: background 0.35s;
}
.stat:hover { background: rgba(var(--p-rgb), 0.06); }
.stat .num {
  font-size: clamp(30px, 4.6vw, 46px); font-weight: 600;
  color: var(--bright); line-height: 1.1;
}
.stat .num .suffix { color: var(--p); font-size: 0.6em; }
.stat .lbl { color: var(--muted); font-size: 12px; letter-spacing: 0.16em; margin-top: 8px; text-transform: uppercase; }

/* ── 上一/下一项目 ──────────────────────────────────────── */
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.pager a {
  display: block; text-decoration: none;
  border: 1px solid var(--line); border-radius: 14px;
  background: var(--panel); padding: 26px 28px;
  transition: border-color 0.3s, transform 0.3s var(--ease-out);
}
.pager a:hover { border-color: rgba(var(--p-rgb), 0.6); transform: translateY(-4px); }
.pager .dir { font-size: 11px; letter-spacing: 0.24em; color: var(--muted); }
.pager .name { font-size: 19px; color: var(--bright); font-weight: 600; margin-top: 6px; }
.pager a.next { text-align: right; }

/* ── 页脚 ───────────────────────────────────────────────── */
.footer {
  position: relative; z-index: 3;
  border-top: 1px solid var(--line-soft);
  padding: 40px 28px; text-align: center;
  color: var(--muted); font-size: 12.5px;
}
.footer a { color: var(--p); text-decoration: none; }
.footer a:hover { text-decoration: underline; }

/* ── 滚动揭示 ───────────────────────────────────────────── */
.reveal {
  opacity: 0; transform: translateY(36px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
  transition-delay: var(--d, 0s);
}
.reveal.in { opacity: 1; transform: none; }

/* ── 展厅（hub）卡片 ────────────────────────────────────── */
.hub-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(330px, 1fr)); gap: 22px; }
.proj {
  position: relative; display: block; text-decoration: none;
  border: 1px solid var(--line); border-radius: 16px;
  background: var(--panel);
  backdrop-filter: blur(8px);
  padding: 34px 30px 30px;
  overflow: hidden;
  transform-style: preserve-3d;
  transition: border-color 0.35s ease;
}
.proj::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(480px circle at var(--mx, 50%) var(--my, 50%),
    rgba(var(--c-rgb, 224, 106, 45), 0.14), transparent 46%);
  opacity: 0; transition: opacity 0.35s; pointer-events: none;
}
.proj:hover::before { opacity: 1; }
.proj:hover { border-color: rgba(var(--c-rgb, 224, 106, 45), 0.65); }
.proj .pnum {
  font-size: 12px; letter-spacing: 0.3em;
  color: rgba(var(--c-rgb, 224, 106, 45), 0.85);
  margin-bottom: 20px;
  display: flex; align-items: center; gap: 12px;
}
.proj .pnum::after { content: ""; flex: 1; height: 1px; background: linear-gradient(90deg, rgba(var(--c-rgb, 224, 106, 45), 0.5), transparent); }
.proj .pname {
  font-size: 24px; font-weight: 600; color: var(--bright);
  letter-spacing: -0.01em; margin-bottom: 10px;
  transform: translateZ(28px);
  word-break: normal; overflow-wrap: break-word; hyphens: auto;
}
.proj .pname.long { font-size: 19.5px; }
.proj .pdesc { color: var(--muted); font-size: 13.5px; min-height: 66px; transform: translateZ(16px); }
.proj .pmeta { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 20px; }
.proj .tagx {
  font-size: 11px; color: var(--muted);
  border: 1px solid var(--line); border-radius: 100px; padding: 3px 11px;
}
.proj .tagx.when {
  margin-left: auto;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  color: var(--muted);
  border-style: dashed;
}
.proj .tagx.when.live {
  color: #3fb950;
  border-color: rgba(63, 185, 80, 0.45);
  border-style: solid;
}
.proj .tagx.when.live::before { content: "● "; font-size: 8px; vertical-align: 1px; }
.proj .go {
  position: absolute; right: 26px; bottom: 24px;
  color: rgba(var(--c-rgb, 224, 106, 45), 0.9);
  font-size: 20px; transform: translateX(-6px); opacity: 0;
  transition: transform 0.3s var(--ease-out), opacity 0.3s;
}
.proj:hover .go { transform: none; opacity: 1; }

/* ── 3D 星座舞台（three.js）────────────────────────────── */
.view-switch { margin-left: auto; display: flex; gap: 0; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.vs-btn {
  appearance: none; border: 0; background: transparent; cursor: pointer;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.04em;
  color: var(--muted); padding: 6px 16px;
  transition: color 0.25s ease, background 0.25s ease;
}
.vs-btn:hover { color: var(--text); }
.vs-btn[aria-pressed="true"] { background: rgba(var(--p-rgb), 0.16); color: var(--bright); }
.vs-btn:disabled { cursor: not-allowed; opacity: 0.45; }
.vs-btn:focus-visible { outline: 2px solid var(--p); outline-offset: -2px; }

.lab3d-stage { display: none; }
#grid.lab3d-active .lab3d-stage {
  display: block; position: relative;
  height: min(72vh, 660px); margin-bottom: 40px;
  border: 1px solid var(--line); border-radius: 16px;
  background: radial-gradient(ellipse at 50% 45%, rgba(var(--p-rgb), 0.05), transparent 65%), rgba(5, 7, 11, 0.5);
  overflow: hidden;
}
#lab3d-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; cursor: grab; touch-action: none; }
#lab3d-canvas:focus-visible { outline: 1px solid rgba(var(--p-rgb), 0.7); outline-offset: -1px; }
#lab3d-canvas.grabbing { cursor: grabbing; }
.lab3d-labels { position: absolute; inset: 0; pointer-events: none; }
.lab3d-label {
  position: absolute; top: 0; left: 0; pointer-events: auto;
  display: flex; flex-direction: column; gap: 1px;
  padding: 4px 9px; max-width: 240px;
  border: 1px solid var(--line); border-radius: 8px;
  background: rgba(13, 17, 23, 0.82);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  font-size: 11.5px; line-height: 1.4; color: var(--text);
  text-decoration: none; white-space: nowrap;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}.lab3d-label .lname { color: var(--bright); font-weight: 600; }
.lab3d-label .lsub { display: none; color: var(--muted); font-size: 10.5px; }
.lab3d-label:hover, .lab3d-label:focus-visible, .lab3d-label.on {
  border-color: rgba(var(--p-rgb), 0.75); background: rgba(13, 17, 23, 0.95);
}
.lab3d-label:hover .lsub, .lab3d-label:focus-visible .lsub, .lab3d-label.on .lsub { display: block; }
.lab3d-hint {
  position: absolute; left: 50%; bottom: 14px; transform: translateX(-50%);
  font-size: 11px; color: var(--muted); letter-spacing: 0.06em;
  pointer-events: none; opacity: 0.75;
}
.lab3d-noscript { padding: 22px; color: var(--muted); font-size: 13px; }

/* 星座图例：簇名 + 成员数，由 lab3d.js 从 CLUSTERS 生成 */
.lab3d-legend {
  position: absolute; left: 14px; bottom: 14px;
  display: grid; gap: 5px;
  padding: 11px 13px;
  border: 1px solid var(--line); border-radius: 10px;
  background: rgba(8, 11, 16, 0.72);
  backdrop-filter: blur(6px);
  pointer-events: none;
  font-size: 11px; line-height: 1.45;
}
.lab3d-legend .lg-cap {
  color: var(--muted); letter-spacing: 0.08em; text-transform: uppercase;
  font-size: 9.5px; margin-bottom: 3px;
}
.lab3d-legend .lg-row {
  display: flex; align-items: baseline; justify-content: space-between; gap: 14px;
}
.lab3d-legend .lg-name { color: var(--text); letter-spacing: 0.02em; }
.lab3d-legend .lg-row b { color: var(--p); font-weight: 600; font-variant-numeric: tabular-nums; }
@media (max-width: 1100px) { .lab3d-legend { display: none; } }

body.lab3d-on #bg-canvas { opacity: 0; transition: opacity 0.4s ease; }
#grid.lab3d-active .hub-grid { display: none; }

/* ── 路线（详情页数字区的接替者）───────────────────────── */
.road { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; max-width: 860px; }
.road li {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 13px 16px;
  border: 1px solid var(--line); border-radius: 10px;
  background: rgba(13, 17, 23, 0.45);
}
.road li p { margin: 0; font-size: 13.5px; line-height: 1.7; color: var(--text); }
.road code {
  color: var(--p); background: rgba(var(--p-rgb), 0.1);
  padding: 2px 7px; border-radius: 5px; font-size: 0.92em;
}
.road .rk {
  flex: 0 0 auto; margin-top: 2px;
  font-size: 10.5px; letter-spacing: 0.06em;
  padding: 3px 10px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--muted); white-space: nowrap;
}
.road .rk.done { color: #3fb950; border-color: rgba(63, 185, 80, 0.35); }
.road .rk.plan { color: var(--p2); border-color: rgba(var(--p2-rgb), 0.35); }
.road .rk.edge { color: var(--p); border-color: rgba(var(--p-rgb), 0.4); }

/* 响应式 */
@media (max-width: 640px) {
  .pager { grid-template-columns: 1fr; }
  .nav { padding: 12px 16px; gap: 12px; }
  .nav-links a { padding: 5px 9px; font-size: 11.5px; }
  .wrap { padding: 80px 18px; }
  .hero { padding: 110px 16px 70px; }
  .view-switch { margin-left: 0; }
  #grid.lab3d-active .lab3d-stage { height: 58vh; border-radius: 12px; }
  .lab3d-label { font-size: 10.5px; padding: 3px 7px; max-width: 180px; }
  .lab3d-hint { font-size: 10px; }
  .road li { flex-direction: column; gap: 6px; padding: 12px 13px; }
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001s !important; transition-duration: 0.001s !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}