:root{
  --accent: #0000b7;
  --accent-dark: #00008e;
  --ink: #141820;
  --paper: #e5e5f7;
  --white: #fff;
  --line: #ccd0dd;
  --muted: #667280;
  --header: 68px;
  --max: 1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; padding-top:var(--header); min-width:320px;
  color:var(--ink); background:var(--paper);
  font-family:"IBM Plex Sans","PingFang SC","Microsoft YaHei",sans-serif; line-height:1.65;
}
a{color:inherit;text-decoration:none} img{display:block;max-width:100%}
button,input{font:inherit} ul,ol{list-style:none;margin:0;padding:0}
.wrap{width:min(calc(100% - 40px),var(--max));margin:0 auto}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}

/* header */
.site-top{
  position:fixed; inset:0 0 auto; z-index:50; height:var(--header);
  background:rgba(255,255,255,.96); border-bottom:2px solid var(--ink);
}
.site-top .wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px}
.brand img{width:42px;height:42px;object-fit:cover;border:2px solid var(--ink)}
.brand strong{display:block;font-size:17px;line-height:1.1}
.brand small{display:block;margin-top:3px;color:var(--muted);font-size:12px}
.nav{display:flex;gap:26px;font-size:14px;font-weight:800}
.nav a{position:relative;padding:18px 0}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--accent);transform:scaleX(0);transition:.2s}
.nav a:hover::after,.nav a.is-on::after{transform:scaleX(1)}
.nav a:hover,.nav a.is-on{color:var(--accent-dark)}
.top-actions{display:none;gap:8px;align-items:center}
.pill-dl{
  padding:9px 14px; background:var(--accent); color:#fff; border:2px solid var(--ink);
  font-size:12px; font-weight:800; white-space:nowrap;
  transform:translate(-2px,-2px); box-shadow:4px 4px 0 var(--ink);
}
.menu-btn{width:40px;height:40px;border:2px solid var(--ink);background:#fff;display:grid;place-content:center;gap:4px;cursor:pointer}
.menu-btn i{display:block;width:18px;height:2px;background:var(--ink)}

/* hero signal studio */
.hero{
  position:relative; overflow:hidden;
  background:#fff;
  background-image:linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:28px 28px;
  border-bottom:2px solid var(--ink);
}
.hero::before{
  content:""; position:absolute; left:0; top:0; bottom:0; width:18px; background:var(--accent);
}
.hero-grid{
  position:relative; z-index:1;
  display:grid; grid-template-columns:1.05fr .95fr; gap:36px; align-items:stretch;
  padding:42px 0 40px; min-height:560px;
}
.eyebrow{
  display:inline-flex; align-items:center; gap:10px; margin-bottom:14px;
  font-family:Consolas,"IBM Plex Sans",monospace; font-size:11px; font-weight:800; letter-spacing:.16em;
}
.eyebrow b{padding:5px 10px; background:var(--ink); color:#fff}
.eyebrow span{color:var(--accent-dark)}
.hero h1{
  margin:0 0 10px; font-family:"Noto Sans SC",sans-serif; font-weight:900;
  font-size:clamp(48px,6vw,76px); line-height:.95; letter-spacing:.03em;
}
.hero-lead{margin:0 0 12px; font-size:clamp(22px,2.6vw,34px); font-weight:900; line-height:1.2; max-width:18em}
.hero-text{margin:0 0 18px; color:#3d4a57; font-size:15px; max-width:36em}
.cta-row{display:flex; flex-wrap:wrap; gap:12px}
.dl{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  min-width:168px; padding:13px 18px; border:2px solid var(--ink); font-weight:800;
  transform:translate(-3px,-3px); box-shadow:5px 5px 0 var(--ink); transition:.2s;
}
.dl:hover{transform:translate(-5px,-5px); box-shadow:7px 7px 0 var(--ink)}
.dl-a{background:var(--accent); color:#fff}
.dl-b{background:var(--ink); color:#fff; box-shadow:5px 5px 0 var(--accent)}
.dl-b:hover{box-shadow:7px 7px 0 var(--accent)}
.note{margin:12px 0 0; color:var(--muted); font-size:12px}

.theater{
  display:grid; grid-template-rows:auto 1fr auto; border:2px solid var(--ink); background:#fff;
  box-shadow:12px 12px 0 rgba(0,0,0,.08);
}
.theater-bar{
  display:flex; justify-content:space-between; align-items:center; gap:10px;
  padding:10px 12px; background:var(--ink); color:#fff; font-size:12px; font-weight:800;
}
.theater-bar em{font-style:normal; color:var(--accent)}
.chat-pane{padding:14px; display:grid; gap:10px; background:linear-gradient(180deg,#fbfcfe, #f3f6fa)}
.msg{display:grid; grid-template-columns:36px 1fr; gap:8px; align-items:start}
.msg.me{grid-template-columns:1fr 36px}
.msg.me .avatar{order:2}
.msg.me .balloon{order:1; justify-self:end; background:var(--accent); color:#fff; border-color:var(--ink)}
.avatar{
  width:36px; height:36px; border:2px solid var(--ink); background:#fff;
  display:grid; place-items:center; font-size:12px; font-weight:900;
}
.balloon{
  max-width:92%; padding:10px 12px; border:2px solid var(--ink); background:#fff;
  font-size:13px; box-shadow:3px 3px 0 var(--ink);
}
.theater-tools{display:flex; gap:8px; padding:10px; border-top:2px solid var(--ink); background:#fff}
.chip{
  padding:7px 10px; border:1px solid var(--ink); background:var(--paper); font-size:12px; font-weight:800; cursor:pointer;
}
.chip.is-on{background:var(--ink); color:#fff}

/* panels */
.panel{
  margin-top:14px; padding:22px; background:#fff; border:1px solid var(--line);
}
.panel-head{display:flex; justify-content:space-between; gap:16px; align-items:end; margin-bottom:16px; padding-bottom:12px; border-bottom:2px solid var(--ink)}
.panel-head .tag{font-family:Consolas,monospace; font-size:11px; font-weight:800; letter-spacing:.14em; color:var(--accent-dark)}
.panel-head h2{margin:4px 0 0; font-size:26px; line-height:1.15}
.panel-head p{margin:0; color:var(--muted); font-size:13px; max-width:36em}

.cast-toolbar{display:flex; flex-wrap:wrap; gap:8px; margin-bottom:14px}
.cast-grid{display:grid; grid-template-columns:repeat(5,minmax(0,1fr)); gap:10px}
.cast{
  border:1px solid var(--line); background:var(--paper); display:grid; grid-template-rows:150px auto;
}
.cast img{width:100%; height:150px; object-fit:cover; border-bottom:2px solid var(--ink)}
.cast .meta{padding:10px}
.cast h3{margin:0; font-size:15px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.cast small{display:block; margin-top:4px; color:var(--muted); font-size:11px}
.cast button{
  margin-top:8px; width:100%; padding:8px; border:1px solid var(--ink); background:#fff; font-weight:800; cursor:pointer;
}
.cast button.is-on{background:var(--accent); color:#fff}

.lab{
  display:grid; grid-template-columns:.92fr 1.08fr; gap:14px;
}
.lab-box{border:2px solid var(--ink); background:#fff}
.lab-box header{padding:10px 12px; background:var(--ink); color:#fff; font-weight:800; font-size:13px; display:flex; justify-content:space-between}
.lab-box header em{font-style:normal; color:var(--accent)}
.preset-list{display:grid}
.preset-list button{
  text-align:left; padding:12px; border:0; border-bottom:1px solid var(--line); background:#fff; cursor:pointer;
}
.preset-list button:hover,.preset-list button.is-on{background:var(--paper)}
.preset-list strong{display:block; font-size:14px}
.preset-list span{color:var(--muted); font-size:12px}
.preview{padding:14px; min-height:260px; display:grid; gap:10px; align-content:start}
.preview .line{border:1px solid var(--line); padding:10px 12px; background:var(--paper); font-size:13px}
.preview .line b{display:block; margin-bottom:4px; color:var(--accent-dark); font-size:11px; letter-spacing:.08em}

.mood{
  display:grid; grid-template-columns:180px 1fr; gap:14px;
}
.mood-days{display:grid; grid-template-columns:repeat(7,1fr); border:1px solid var(--line)}
.mood-days button{padding:12px 0; border:0; border-right:1px solid var(--line); background:#fff; font-weight:800; cursor:pointer}
.mood-days button:last-child{border-right:0}
.mood-days button.is-on{background:var(--accent); color:#fff}
.timeline{display:grid; gap:0}
.timeline li{
  display:grid; grid-template-columns:64px 1fr auto; gap:12px; align-items:center;
  padding:12px 0; border-bottom:1px solid var(--line);
}
.timeline time{font-weight:800; color:var(--accent-dark)}
.timeline strong,.timeline span{display:block}
.timeline span{color:var(--muted); font-size:12px}
.bell{width:36px;height:30px;border:1px solid var(--line);background:#fff;cursor:pointer}
.bell.is-on{background:var(--accent); border-color:var(--ink)}

.film{
  display:flex; gap:12px; overflow-x:auto; scroll-snap-type:x mandatory; padding-bottom:8px;
}
.film figure{
  flex:0 0 220px; margin:0; scroll-snap-align:start; border:1px solid var(--line); background:var(--paper);
}
.film .frame{height:360px; padding:8px; border-bottom:2px solid var(--ink); background:#e9eef4}
.film img{width:100%; height:100%; object-fit:cover}
.film figcaption{padding:10px; font-size:13px; font-weight:800}
.film figcaption b{
  display:inline-grid; place-items:center; width:26px; height:26px; margin-right:8px; background:var(--accent); color:var(--ink);
}
.film-ctrl{display:flex; gap:8px}
.film-ctrl button{width:42px;height:42px;border:1px solid var(--line);background:#fff;font-size:18px;cursor:pointer}
.film-ctrl button:hover{background:var(--accent)}

.desk{
  display:grid; grid-template-columns:1.25fr .75fr; gap:18px;
}
.voices-grid{display:grid; grid-template-columns:1fr 1fr; gap:12px}
.ticket{
  padding:12px; background:var(--paper); border:1px solid var(--line);
}
.ticket header{display:grid; grid-template-columns:38px 1fr auto; gap:9px; align-items:center}
.ticket .av{width:38px;height:38px;border-radius:50%; background:var(--ink); color:#fff; display:grid; place-items:center; font-weight:800}
.ticket time{display:block; color:var(--muted); font-size:12px}
.ticket .stars{color:var(--accent-dark); letter-spacing:.03em}
.ticket p{margin:10px 0 0; font-size:13px; color:#3d4a57}
.sort{display:flex}
.sort button{padding:7px 10px; border:1px solid var(--line); background:transparent; cursor:pointer; font-size:12px}
.sort button.is-on{background:var(--accent); color:#fff; border-color:var(--accent)}

.faq-item{border-bottom:1px solid var(--line)}
.faq-item > button{
  width:100%; display:flex; justify-content:space-between; gap:12px; align-items:center;
  padding:14px 0; border:0; background:transparent; font-weight:800; text-align:left; cursor:pointer;
}
.faq-item .ans{display:grid; grid-template-rows:0fr; transition:.2s}
.faq-item .ans > div{overflow:hidden}
.faq-item .ans p{margin:0; padding:0 0 14px; color:var(--muted); font-size:13px}
.faq-item.is-open .ans{grid-template-rows:1fr}
.faq-item .plus{width:16px;height:16px; position:relative}
.faq-item .plus::before,.faq-item .plus::after{content:""; position:absolute; background:var(--ink)}
.faq-item .plus::before{left:0; right:0; top:7px; height:2px}
.faq-item .plus::after{top:0; bottom:0; left:7px; width:2px; transition:.2s}
.faq-item.is-open .plus::after{transform:scaleY(0)}

.band{
  margin-top:14px; color:#fff;
  background:linear-gradient(112deg, var(--accent) 0 46%, var(--ink) 46% 100%);
  border-top:3px solid var(--ink);
}
.band-inner{display:grid; grid-template-columns:.9fr 1.1fr; gap:28px; align-items:center; padding:34px 0; width:min(calc(100% - 40px),var(--max)); margin:0 auto}
.band h2{margin:8px 0; font-size:clamp(28px,4vw,46px); line-height:1.1}
.band .ops{display:grid; grid-template-columns:1fr 1fr; gap:12px}
.band a{
  display:flex; gap:12px; align-items:center; padding:18px; background:#ffd400; color:var(--ink);
  border:2px solid var(--ink); font-weight:800;
}
.band a small{display:block; color:#5a4a00; font-size:12px; font-weight:600}
.band a strong{display:block; font-size:15px}

.site-foot{background:#0e1218; color:#c5d0dc; border-top:1px solid #2a3340}
.site-foot .wrap{display:grid; grid-template-columns:1fr auto 1fr; gap:18px; align-items:center; min-height:96px}
.site-foot .brand{color:#fff}
.site-foot .brand small{color:#8b97a6}
.site-foot ul{display:flex; gap:18px}
.site-foot p{justify-self:end; margin:0; color:#8b97a6}

.back{
  position:fixed; right:22px; bottom:22px; width:48px; height:48px; border:2px solid var(--ink);
  background:var(--accent); cursor:pointer; opacity:0; visibility:hidden; transform:translateY(10px); transition:.2s;
}
.back.show{opacity:1; visibility:visible; transform:none}
.back i{display:block; width:12px; height:12px; margin:0 auto; border-left:3px solid #fff; border-top:3px solid #fff; transform:translateY(3px) rotate(45deg)}

@media (max-width:1050px){
  .cast-grid{grid-template-columns:repeat(3,1fr)}
  .lab,.desk,.mood{grid-template-columns:1fr}
  .hero-grid{gap:24px}
}
@media (max-width:860px){
  .nav{display:none}
  .nav.open{display:grid; position:fixed; inset:var(--header) 0 0; background:rgba(15,20,28,.98); padding:18px; gap:0}
  .nav.open a{color:#fff; padding:16px 4px; border-bottom:1px solid #3a4452}
  .top-actions{display:flex}
  .hero::before{display:none}
  .hero-grid{grid-template-columns:1fr; min-height:auto; padding:36px 0}
  .hero-copy{text-align:center}
  .cta-row,.eyebrow{justify-content:center}
  .hero-text{margin-left:auto; margin-right:auto}
  .cast-grid,.voices-grid,.band-inner,.band .ops,.site-foot .wrap{grid-template-columns:1fr}
  .site-foot .wrap{justify-items:center; text-align:center; padding:24px 0}
  .site-foot p{justify-self:center}
  .film figure{flex-basis:min(260px,78vw)}
}
@media (max-width:560px){
  .brand small{display:none}
  .cast-grid{grid-template-columns:repeat(2,1fr)}
  .cta-row{display:grid; grid-template-columns:1fr 1fr}
  .dl{min-width:0; padding:12px 8px; font-size:13px}
}