/* Gemini Live Demo — premium dark-glass theme */
:root{
  --bg:#070b16; --bg2:#0b1222;
  --panel:rgba(19,26,44,.66); --panel-brd:rgba(120,140,180,.16);
  --ink:#eef2fb; --sub:#9aa6bd; --faint:#66728c;
  --blue:#4285F4; --red:#EA4335; --yellow:#FBBC04; --green:#34A853; --amber:#E37400;
  --glow:0 18px 60px rgba(0,0,0,.45);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Google Sans Text","Noto Sans SC",system-ui,sans-serif;
  color:var(--ink); background:var(--bg); line-height:1.55;
  min-height:100vh; overflow-x:hidden;
}
b{color:#fff;font-weight:600}
code{font-family:"JetBrains Mono",ui-monospace,monospace}

/* 背景极光 */
.aurora{position:fixed;inset:0;z-index:-1;background:
  radial-gradient(60% 55% at 18% 8%, rgba(66,133,244,.28), transparent 60%),
  radial-gradient(50% 50% at 88% 6%, rgba(52,168,83,.22), transparent 55%),
  radial-gradient(70% 60% at 60% 100%, rgba(227,116,0,.16), transparent 60%),
  linear-gradient(180deg,var(--bg),var(--bg2));
  filter:saturate(1.05)}
.aurora::after{content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:26px 26px;mask-image:linear-gradient(180deg,#000,transparent 70%);opacity:.5}

/* HERO */
.hero{padding:40px 24px 26px}
.hero-inner{max-width:1200px;margin:0 auto}
.brandline{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.dots i{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:5px;box-shadow:0 0 12px currentColor}
.dots .b{background:var(--blue);color:var(--blue)}.dots .r{background:var(--red);color:var(--red)}
.dots .y{background:var(--yellow);color:var(--yellow)}.dots .g{background:var(--green);color:var(--green)}
.brandtag{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--sub);font-weight:600}
h1{font-size:38px;font-weight:700;letter-spacing:-.01em;
  background:linear-gradient(92deg,#fff 20%,#bcd0ff 55%,#9fe6c0 90%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
h1 .thin{font-weight:400;color:var(--sub);-webkit-text-fill-color:var(--sub)}
.sub{color:var(--sub);font-size:15px;margin-top:12px;max-width:760px}
.statusbar{display:flex;align-items:center;gap:12px;margin-top:22px;flex-wrap:wrap}
.pill{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;
  background:rgba(255,255,255,.05);border:1px solid var(--panel-brd);
  padding:6px 13px;border-radius:999px;backdrop-filter:blur(8px)}
.pill.model code{color:#bcd0ff;font-size:12.5px}
.pilllabel{font-size:10px;letter-spacing:.12em;color:var(--faint);font-weight:700}
.pill.secure{color:#8fe0ad}
.pill.geo{color:#bcd0ff}
.pill.geo.ok{color:#7ee2a2;border-color:rgba(52,168,83,.32);background:rgba(52,168,83,.12)}
.pill.geo.warn{color:#ffd873;border-color:rgba(251,188,4,.3);background:rgba(251,188,4,.1)}

.chip{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  font-size:12.5px;font-weight:600;border:1px solid transparent}
.chip .statedot{width:8px;height:8px;border-radius:50%;background:currentColor;box-shadow:0 0 10px currentColor}
.chip.off{background:rgba(234,67,53,.14);color:#ff9b90;border-color:rgba(234,67,53,.3)}
.chip.on{background:rgba(52,168,83,.15);color:#7ee2a2;border-color:rgba(52,168,83,.32)}
.chip.on .statedot{animation:blip 1.6s ease-in-out infinite}
.chip.wait{background:rgba(251,188,4,.13);color:#ffd873;border-color:rgba(251,188,4,.3)}
.chip.wait .statedot{animation:blip .9s ease-in-out infinite}
@keyframes blip{50%{opacity:.35}}

/* LAYOUT */
main{max-width:1200px;margin:8px auto 40px;padding:0 24px;display:flex;flex-direction:column;gap:18px}
.glass{background:var(--panel);border:1px solid var(--panel-brd);border-radius:18px;
  backdrop-filter:blur(16px);box-shadow:var(--glow)}
.panel{padding:22px 24px}
.panel-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.panel-head .step{font-family:"JetBrains Mono",monospace;font-size:12px;font-weight:600;
  color:#bcd0ff;background:rgba(66,133,244,.16);border:1px solid rgba(66,133,244,.3);
  padding:3px 9px;border-radius:8px}
.panel-head h2{font-size:15px;font-weight:600;color:var(--ink);letter-spacing:.01em}

/* 场景卡 */
.scenes{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.scene{position:relative;border:1px solid var(--panel-brd);border-radius:14px;padding:16px;
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.01));
  display:flex;flex-direction:column;gap:12px;transition:.18s;overflow:hidden}
.scene::before{content:"";position:absolute;left:0;top:0;height:100%;width:3px;
  background:linear-gradient(var(--blue),var(--green));opacity:.7}
.scene:hover{transform:translateY(-3px);border-color:rgba(66,133,244,.5);
  box-shadow:0 12px 32px rgba(66,133,244,.22)}
.scene .tag{font-size:12px;color:#bcd0ff;font-weight:700;letter-spacing:.02em}
.scene .q{font-size:14px;line-height:1.55;color:var(--ink)}
.scene .play{align-self:flex-start;background:linear-gradient(120deg,#1a73e8,#4285F4);
  color:#fff;border:0;border-radius:999px;padding:8px 18px;font-size:13px;font-weight:600;
  cursor:pointer;transition:.15s;box-shadow:0 4px 14px rgba(66,133,244,.4)}
.scene .play:hover{filter:brightness(1.08)}
.scene.busy{opacity:.5;pointer-events:none}
.scene .play.playing{background:linear-gradient(120deg,#ea4335,#ff6d5f)}

/* 输入行 */
.typerow{display:flex;gap:12px;margin-top:18px}
.typerow select#mode{flex:0 0 auto;padding:12px 14px;border:1px solid var(--panel-brd);
  border-radius:12px;font-size:14px;font-weight:600;background:rgba(0,0,0,.25);color:var(--ink);
  cursor:pointer;transition:.15s;font-family:inherit}
.typerow select#mode:focus{outline:0;border-color:rgba(66,133,244,.6);box-shadow:0 0 0 3px rgba(66,133,244,.15)}
.typerow select#mode option{background:#0b1222;color:var(--ink)}
.typerow input{flex:1;padding:12px 16px;border:1px solid var(--panel-brd);border-radius:12px;
  font-size:14px;background:rgba(0,0,0,.25);color:var(--ink);transition:.15s}
.typerow input::placeholder{color:var(--faint)}
.typerow input:focus{outline:0;border-color:rgba(66,133,244,.6);box-shadow:0 0 0 3px rgba(66,133,244,.15)}
button{background:linear-gradient(120deg,#1a73e8,#4285F4);color:#fff;border:0;border-radius:12px;
  padding:12px 24px;font-size:14px;font-weight:600;cursor:pointer;transition:.15s;
  box-shadow:0 4px 14px rgba(66,133,244,.4)}
button:hover:not(:disabled){filter:brightness(1.08)}
button:disabled{background:rgba(255,255,255,.08);color:var(--faint);cursor:default;box-shadow:none}

.cols{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start}
.col-inner{margin-bottom:0}

/* 对话 */
#log{min-height:340px;max-height:480px;overflow-y:auto;font-size:14px;padding-right:6px}
#log .u{color:#8fb6ff;margin:12px 0 3px;font-weight:600}
#log .m{color:var(--ink);margin:3px 0 12px;white-space:pre-wrap;
  background:rgba(255,255,255,.04);border-radius:10px;padding:10px 13px;border:1px solid var(--panel-brd)}
.placeholder{color:var(--faint);font-size:13.5px}

/* 工具事件 */
#tools{font-size:13.5px;display:flex;flex-direction:column;gap:10px}
.evt{border-left:3px solid var(--green);background:rgba(52,168,83,.1);border-radius:10px;
  padding:11px 14px;animation:evtin .3s ease}
@keyframes evtin{from{opacity:0;transform:translateX(8px)}}
.evt.fc{border-color:var(--blue);background:rgba(66,133,244,.12);font-weight:600}
.evt.map{border-color:var(--amber);background:rgba(227,116,0,.12)}
.evt code{font-size:12px;color:#cfe0ff}
#mapbox iframe{width:100%;height:340px;border:0;border-radius:14px;margin-top:14px;
  box-shadow:0 8px 26px rgba(0,0,0,.4)}
#mapbox #gmap{width:100%;height:340px;border-radius:14px;margin-top:14px;
  box-shadow:0 8px 26px rgba(0,0,0,.4)}

/* 导航横幅 */
.navbanner{position:relative;overflow:hidden;display:flex;align-items:center;gap:18px;
  background:linear-gradient(120deg,#34A853,#0f9d58);color:#fff;border-radius:16px;
  padding:20px 22px;margin-bottom:18px;box-shadow:0 10px 36px rgba(52,168,83,.45);
  transform:translateY(-6px);opacity:0;transition:.35s}
.navbanner.show{transform:translateY(0);opacity:1;animation:navpop .5s}
.navbanner.hidden{display:none}
@keyframes navpop{0%{transform:scale(.96)}50%{transform:scale(1.02)}100%{transform:scale(1)}}
.navicon{font-size:38px;animation:spin 3.5s linear infinite;filter:drop-shadow(0 2px 6px rgba(0,0,0,.3))}
@keyframes spin{100%{transform:rotate(360deg)}}
.navlabel{font-size:11.5px;letter-spacing:.1em;font-weight:700;opacity:.92}
.navdest{font-size:21px;font-weight:700;margin-top:3px}
.navpulse{position:absolute;right:-40px;top:-40px;width:150px;height:150px;border-radius:50%;
  background:rgba(255,255,255,.16);animation:pulse 2s ease-out infinite}
@keyframes pulse{0%{transform:scale(.6);opacity:.6}100%{transform:scale(1.5);opacity:0}}

footer{color:var(--faint);text-align:center;font-size:12.5px;padding:26px;letter-spacing:.02em}
.fdot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--green);
  box-shadow:0 0 10px var(--green);margin-right:7px;vertical-align:middle;animation:blip 2s infinite}

::-webkit-scrollbar{width:8px}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:8px}

@media(max-width:920px){
  h1{font-size:28px}
  .cols{grid-template-columns:1fr}
  .scenes{grid-template-columns:1fr}
}