:root{
  --bg:#05060a;
  --fg:rgba(255,255,255,.92);
  --muted:rgba(255,255,255,.58);
  --hair:rgba(255,255,255,.12);
  --accent:#7cf7ff;
  --accent2:#a78bfa;
  --shadow: 0 18px 60px rgba(0,0,0,.55);
  --radius: 18px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background: radial-gradient(1200px 900px at 70% 15%, rgba(124,247,255,.08), transparent 60%),
  radial-gradient(900px 700px at 20% 70%, rgba(167,139,250,.07), transparent 62%),
  var(--bg);
  color:var(--fg);
  font-family:var(--sans);
  overflow-x:hidden;
}

#bg{
  position:fixed;
  inset:0;
  width:100vw;
  height:100vh;
  display:block;
  z-index:0;
}

.topnav{
  position:fixed;
  top:16px;
  left:16px;
  right:16px;
  z-index:10;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:12px 14px;
  border:1px solid rgba(255,255,255,.08);
  background: rgba(6,7,10,.45);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: 999px;
  box-shadow: var(--shadow);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  min-width: 190px;
}
.brand .dot{
  width:10px;height:10px;border-radius:50%;
  background: radial-gradient(circle at 30% 30%, var(--accent), rgba(124,247,255,.1));
  box-shadow: 0 0 18px rgba(124,247,255,.35);
}
.brand .name{
  font-weight:600;
  letter-spacing:.2px;
  font-size:13px;
  color:rgba(255,255,255,.86);
  white-space:nowrap;
}
.brand .sub{
  font-family:var(--mono);
  font-size:11px;
  color:rgba(255,255,255,.36);
  margin-left:8px;
  white-space:nowrap;
}

.navlinks{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  justify-content:center;
}
.navlinks a{
  text-decoration:none;
  color:rgba(255,255,255,.70);
  font-size:12px;
  padding:9px 12px;
  border-radius:999px;
  border:1px solid transparent;
  transition: .25s ease;
}
.navlinks a:hover{
  color:rgba(255,255,255,.92);
  border-color: rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
}
.navlinks a.active{
  color:rgba(255,255,255,.92);
  border-color: rgba(124,247,255,.26);
  background: linear-gradient(180deg, rgba(124,247,255,.10), rgba(124,247,255,.03));
  box-shadow: 0 0 0 1px rgba(124,247,255,.08) inset;
}

/* 右侧操作区（语言开关 + 联系按钮） */
.topActions{
  display:flex;
  align-items:center;
  gap:10px;
  flex: 0 0 auto;
}

/* 语言切换开关 */
.langToggle{
  appearance:none;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
  border-radius: 999px;
  padding: 0;
  cursor: pointer;
  transition: .22s ease;
  box-shadow: 0 18px 60px rgba(0,0,0,.18);
}
.langToggle:hover{
  border-color: rgba(124,247,255,.22);
  background: rgba(124,247,255,.06);
  box-shadow: 0 0 0 1px rgba(124,247,255,.06) inset, 0 18px 60px rgba(0,0,0,.18);
}
.langTrack{
  position:relative;
  display:flex;
  align-items:center;
  gap:0;
  padding:3px;
  min-width: 132px;
  height: 32px;
}
.langOpt{
  position:relative;
  z-index:2;
  width: 50%;
  text-align:center;
  font-family: var(--mono);
  font-size: 11px;
  color: rgba(255,255,255,.62);
  user-select:none;
  line-height: 26px;
}
.langKnob{
  position:absolute;
  z-index:1;
  top:3px;
  left:3px;
  bottom:3px;
  width: calc(50% - 3px);
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(124,247,255,.14), rgba(124,247,255,.06));
  border: 1px solid rgba(124,247,255,.18);
  box-shadow: 0 0 0 1px rgba(124,247,255,.06) inset;
  transition: transform .22s ease;
}
.langToggle[data-lang="ja"] .langKnob{
  transform: translateX(100%);
}
.langToggle[data-lang="zh"] .langOpt.zh{
  color: rgba(255,255,255,.88);
}
.langToggle[data-lang="ja"] .langOpt.ja{
  color: rgba(255,255,255,.88);
}

.pillBtn{
  display:flex;align-items:center;gap:10px;
  padding:9px 12px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
  color:rgba(255,255,255,.72);
  font-size:12px;
  font-family:var(--mono);
  white-space:nowrap;
  text-decoration:none;
  transition: .22s ease;
}
.pillBtn:hover{
  border-color: rgba(124,247,255,.22);
  background: rgba(124,247,255,.06);
  color: rgba(255,255,255,.86);
  box-shadow: 0 0 0 1px rgba(124,247,255,.06) inset;
}
.pulseDot{
  width:8px;height:8px;border-radius:50%;
  background: rgba(124,247,255,.85);
  box-shadow: 0 0 18px rgba(124,247,255,.28);
  position:relative;
}
.pulseDot::after{
  content:"";
  position:absolute; inset:-6px;
  border-radius:50%;
  border:1px solid rgba(124,247,255,.25);
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse{
  0%{ transform: scale(.78); opacity:.35; }
  60%{ transform: scale(1.12); opacity:.10; }
  100%{ transform: scale(1.25); opacity:0; }
}

.overlay{
  position:relative;
  z-index:2;
  width:min(1100px, calc(100vw - 32px));
  margin: 0 auto;
  padding-top: 90px;
  padding-bottom: 80px;
}
.panel{
  height: 100vh;
  min-height: 680px;
  display:flex;
  align-items:flex-end;
  padding: 34px 10px calc(34px + env(safe-area-inset-bottom, 0px) + 88px);
}
.panel .copy{
  width:min(560px, 100%);
  padding: 18px 18px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(10,12,18,.55), rgba(10,12,18,.15));
  border: 1px solid rgba(255,255,255,.08);
  box-shadow: 0 18px 70px rgba(0,0,0,.35);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.kicker{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:rgba(255,255,255,.55);
  margin-bottom:10px;
}
.kline{
  height:1px;
  flex:1;
  background: linear-gradient(90deg, rgba(124,247,255,.55), transparent);
  opacity:.55;
}
h1{
  margin:0;
  font-size: clamp(26px, 4.2vw, 44px);
  letter-spacing:-.02em;
  line-height:1.05;
}
.lead{
  margin: 12px 0 0 0;
  color: rgba(255,255,255,.70);
  line-height: 1.55;
  font-size: 14px;
}
.micro{
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 11px;
  color: rgba(255,255,255,.40);
  line-height: 1.45;
}
.chips{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top: 14px;
}
.chip{
  font-family: var(--mono);
  font-size: 11px;
  color: rgba(255,255,255,.62);
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
}
.chip.accent{
  border-color: rgba(124,247,255,.22);
  background: rgba(124,247,255,.06);
  color: rgba(255,255,255,.74);
}

.loading{
  position:fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 12;
  width: min(560px, calc(100vw - 32px));
  pointer-events: none;
  opacity: 1;
  visibility: visible;
  transition: opacity .45s ease, visibility .45s ease, transform .45s ease;
}
.loading.hidden{
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(-6px);
}
.loadhud{
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(6,7,10,.35);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 18px 60px rgba(0,0,0,.35);
  padding: 10px 12px;
}
.loadbar{
  height: 8px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.10);
  position: relative;
}
.loadbar > i{
  display:block;
  height:100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(124,247,255,.75), rgba(167,139,250,.75));
  box-shadow: 0 0 22px rgba(124,247,255,.22);
  transition: width .18s ease;
  position: relative;
  overflow: hidden;
}
.loadbar > i::after{
  content:"";
  position:absolute;
  top:-40%;
  left:-40%;
  width:40%;
  height:180%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.30), transparent);
  transform: skewX(-18deg);
  animation: shimmer 1.2s ease-in-out infinite;
  opacity: .65;
}
@keyframes shimmer{
  0%{ transform: translateX(0) skewX(-18deg); }
  100%{ transform: translateX(320%) skewX(-18deg); }
}
.loadmeta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 11px;
  color: rgba(255,255,255,.62);
}
.loadtext{
  color: rgba(255,255,255,.55);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.loadpct{
  color: rgba(255,255,255,.78);
  flex: 0 0 auto;
}

/* 🔥 3D 查看按钮：抬高位置 + 更显眼 */
.fab3d{
  position: fixed;
  right: 22px;
  bottom: 96px;
  z-index: 13;
  display:flex;
  align-items:center;
  gap:10px;
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid rgba(124,247,255,.55);
  background: radial-gradient(circle at 20% 0%, rgba(124,247,255,.35), rgba(6,7,10,.85));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  color: rgba(255,255,255,.92);
  font-family: var(--mono);
  font-size: 12px;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
  box-shadow: 0 0 24px rgba(124,247,255,.55);
  animation: fabGlow 2.4s ease-in-out infinite;
}
.fab3d:hover{
  transform: translateY(-1px);
  border-color: rgba(124,247,255,.9);
  background: radial-gradient(circle at 20% 0%, rgba(124,247,255,.55), rgba(6,7,10,.95));
  box-shadow: 0 0 30px rgba(124,247,255,.75);
}
.fab3d:active{
  transform: translateY(1px) scale(.98);
  box-shadow: 0 0 18px rgba(124,247,255,.55);
}
.fabIcon{
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--accent), rgba(124,247,255,.08));
  box-shadow: 0 0 18px rgba(124,247,255,.55);
  flex: 0 0 auto;
}
.fabHint{
  opacity: .9;
  letter-spacing: .06em;
  text-transform: uppercase;
}
@keyframes fabGlow{
  0%{ box-shadow: 0 0 22px rgba(124,247,255,.55); transform: translateY(0); }
  50%{ box-shadow: 0 0 32px rgba(124,247,255,.85); transform: translateY(-2px); }
  100%{ box-shadow: 0 0 22px rgba(124,247,255,.55); transform: translateY(0); }
}

.scrollHint{
  position:fixed;
  left:50%;
  bottom: 22px;
  transform:translateX(-50%);
  z-index:9;
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(6,7,10,.38);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: rgba(255,255,255,.62);
  font-family: var(--mono);
  font-size: 11px;
  transition: opacity .35s ease;
  pointer-events:none;
}
.scrollHint .arrow{
  width: 8px; height: 8px;
  border-right: 2px solid rgba(255,255,255,.55);
  border-bottom: 2px solid rgba(255,255,255,.55);
  transform: rotate(45deg);
  margin-left: 2px;
  animation: bob 1.2s ease-in-out infinite;
}
@keyframes bob{
  0%,100%{ transform: translateY(-1px) rotate(45deg); opacity:.65; }
  50%{ transform: translateY(2px) rotate(45deg); opacity:.95; }
}

.inspect{
  position:fixed;
  inset:0;
  z-index:40;
  display:none;
}
.inspect.open{ display:block; }
.inspectBackdrop{
  position:absolute;
  inset:0;
  background: radial-gradient(800px 600px at 50% 30%, rgba(124,247,255,.10), transparent 60%),
  rgba(0,0,0,.58);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.inspectPanel{
  position:absolute;
  left:50%;
  top:50%;
  transform: translate(-50%,-50%);
  width:min(1040px, calc(100vw - 28px));
  height:min(720px, calc(100vh - 120px));
  border-radius: 22px;
  border:1px solid rgba(255,255,255,.10);
  background: linear-gradient(180deg, rgba(10,12,18,.62), rgba(10,12,18,.35));
  box-shadow: 0 30px 90px rgba(0,0,0,.55);
  overflow:hidden;
  display:flex;
  flex-direction:column;
}
.inspectTop{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.inspectTitle{
  font-family: var(--mono);
  font-size: 12px;
  color: rgba(255,255,255,.78);
  letter-spacing:.08em;
  text-transform: uppercase;
}
.inspectClose{
  appearance:none;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
  color: rgba(255,255,255,.80);
  width: 36px;
  height: 30px;
  border-radius: 999px;
  cursor:pointer;
  transition:.2s ease;
  font-size: 16px;
  line-height: 1;
}
.inspectClose:hover{
  border-color: rgba(124,247,255,.22);
  background: rgba(124,247,255,.06);
}
.inspectHint{
  padding: 8px 14px 0 14px;
  font-family: var(--mono);
  font-size: 11px;
  color: rgba(255,255,255,.48);
}
.inspectView{
  position:relative;
  flex:1;
  margin: 10px 12px 12px 12px;
  border-radius: 18px;
  border:1px solid rgba(255,255,255,.08);
  background: radial-gradient(900px 700px at 50% 40%, rgba(124,247,255,.07), transparent 60%),
  rgba(6,7,10,.35);
  overflow:hidden;
}
#inspectCanvas{
  width:100%;
  height:100%;
  display:block;
}
.inspectLoading{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  font-family: var(--mono);
  font-size: 12px;
  color: rgba(255,255,255,.62);
  pointer-events:none;
  background: radial-gradient(600px 420px at 50% 40%, rgba(124,247,255,.08), transparent 60%);
  transition: opacity .35s ease, visibility .35s ease;
}
.inspectLoading.hidden{
  opacity:0;
  visibility:hidden;
}

@media (max-width: 720px){
  .brand .sub{display:none}
  .panel{align-items:flex-end}
  .inspectPanel{
    height: min(680px, calc(100vh - 110px));
  }
  .fab3d{
    right: 14px;
    bottom: 80px;
  }
  .scrollHint{ opacity:.6; }
}