:root {
  --ink: #07080c;
  --panel: #11131a;
  --seat: #8a0e16;
  --flare: #e50914;
  --gold: #f3d27a;
  --paper: #f6f1e6;
  --mute: #9aa0ad;
  --line: rgba(243, 210, 122, 0.18);
  --dl: https://kf.gbso.cn/?type=wangfeimao;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--paper);
  background: var(--ink);
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; }
button { font-family: inherit; }

.skip {
  position: absolute;
  left: -999px;
  top: 8px;
}
.skip:focus { left: 8px; background: #000; padding: 8px 12px; z-index: 80; }

.sprocket {
  position: fixed;
  inset: 0 auto 0 0;
  width: 18px;
  background:
    repeating-linear-gradient(180deg, #1a1c24 0 14px, transparent 14px 28px);
  border-right: 1px solid var(--line);
  z-index: 4;
  pointer-events: none;
}
.sprocket.right {
  left: auto;
  right: 0;
  border-right: 0;
  border-left: 1px solid var(--line);
}

.ticket-bar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 18px;
  align-items: center;
  padding: 10px 28px 10px 36px;
  background: linear-gradient(180deg, rgba(7,8,12,.96), rgba(7,8,12,.78));
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.brand img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}
.brand strong { display: block; font-size: 16px; letter-spacing: .12em; }
.brand em {
  display: block;
  font-style: normal;
  font-size: 11px;
  color: var(--gold);
  letter-spacing: .18em;
}
.lane {
  display: flex;
  justify-content: center;
  gap: 22px;
}
.lane a {
  text-decoration: none;
  color: var(--mute);
  font-size: 14px;
}
.lane a:hover { color: var(--paper); }
.btn-ticket {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  background: var(--flare);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  clip-path: polygon(8px 0, calc(100% - 8px) 0, 100% 50%, calc(100% - 8px) 100%, 8px 100%, 0 50%);
}
.nav-btn {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: transparent;
  color: #fff;
}
.nav-btn span {
  display: block;
  height: 2px;
  margin: 6px 8px;
  background: #fff;
}

.house {
  position: relative;
  min-height: 100svh;
  max-height: 100svh;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  align-items: stretch;
  overflow: hidden;
  background:
    radial-gradient(80% 70% at 70% 40%, rgba(229,9,20,.22), transparent 55%),
    linear-gradient(180deg, #0b0d14, #07080c 70%);
}
.house::before {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 28%;
  background:
    repeating-linear-gradient(180deg, #5a0b11 0 10px, #3d070c 10px 18px);
  opacity: .55;
  mask-image: linear-gradient(180deg, transparent, #000 40%);
  pointer-events: none;
}
.copy {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 4vh 4vw 6vh 6vw;
}
.kicker {
  margin: 0 0 10px;
  color: var(--gold);
  letter-spacing: .32em;
  font-size: 12px;
}
.copy h1 {
  margin: 0;
  font-size: clamp(56px, 8.2vw, 118px);
  line-height: .86;
  letter-spacing: .04em;
  font-weight: 900;
}
.lines {
  margin: 16px 0 0;
  font-size: clamp(22px, 2.6vw, 36px);
  line-height: 1.25;
  font-weight: 700;
}
.lines b {
  display: block;
  color: var(--flare);
  font-size: 1.12em;
}
.lead {
  margin: 16px 0 0;
  max-width: 42em;
  color: #d7dbe6;
  font-size: 16px;
  line-height: 1.75;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}
.btn-main, .btn-ghost {
  min-height: 50px;
  padding: 0 22px;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  font-weight: 700;
}
.btn-main { background: var(--flare); color: #fff; }
.btn-ghost {
  border: 1px solid var(--gold);
  color: var(--gold);
}
.meta-row {
  display: flex;
  gap: 18px;
  margin-top: 18px;
  color: var(--mute);
  font-size: 13px;
}

.stage {
  position: relative;
  z-index: 2;
  display: grid;
  place-items: end center;
  padding: 4vh 4vw 0 0;
}
.phones {
  position: relative;
  width: min(100%, 640px);
  height: min(86vh, 760px);
}
.phone {
  position: absolute;
  width: min(46%, 280px);
  border-radius: 28px;
  overflow: hidden;
  border: 3px solid #1d212c;
  box-shadow: 0 24px 50px rgba(0,0,0,.45);
  background: #000;
}
.phone img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.phone.a { right: 18%; bottom: 0; height: 92%; z-index: 3; }
.phone.b { right: 52%; bottom: 8%; height: 78%; z-index: 2; transform: rotate(-7deg); }
.phone.c { right: -4%; bottom: 14%; height: 70%; z-index: 1; transform: rotate(8deg); }

.wrap {
  width: min(1180px, calc(100% - 56px));
  margin: 0 auto;
}
section { padding: 72px 0; }
.sec-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 20px;
  margin-bottom: 28px;
}
.sec-head h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 44px);
}
.sec-head p {
  margin: 8px 0 0;
  color: var(--mute);
  max-width: 36em;
  line-height: 1.7;
}

/* 竖屏截图统一用手机框，按原比例完整展示，禁止 cover 裁切 */
.device {
  margin: 0;
  width: min(100%, 260px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.device img {
  width: 100%;
  height: auto;
  display: block;
  background: #0a0b10;
  border-radius: 22px;
  border: 3px solid #252938;
  box-shadow: 0 18px 40px rgba(0,0,0,.4);
  cursor: zoom-in;
}
.device figcaption {
  font-size: 13px;
  color: var(--mute);
  letter-spacing: .08em;
}

.board {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 28px 32px;
}
.board-copy { padding: 0; max-width: 36em; }
.board-copy h3 { margin: 0 0 12px; font-size: 28px; }
.board-copy p { margin: 0; color: #cfd3dc; line-height: 1.85; font-size: 16px; }
.board-shots {
  display: flex;
  gap: 18px;
  align-items: flex-end;
  justify-content: center;
}
.board-shots .device { width: 240px; }
.board-shots .device:nth-child(2) {
  width: 220px;
  transform: translateY(16px);
}

.lanes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.lane-card {
  background: linear-gradient(180deg, #161820, #101218);
  border: 1px solid var(--line);
  padding: 18px 18px 22px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: left;
}
.lane-card .device { width: min(100%, 230px); margin-bottom: 14px; }
.lane-card h3 {
  margin: 0 0 10px;
  align-self: stretch;
}
.lane-card p {
  margin: 0;
  color: #c9ced8;
  line-height: 1.8;
  align-self: stretch;
}

.gallery {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding: 8px 4px 20px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.gallery .device {
  flex: 0 0 200px;
  scroll-snap-align: start;
  max-width: none;
}
.gallery::-webkit-scrollbar { height: 6px; }
.gallery::-webkit-scrollbar-thumb {
  background: rgba(229, 9, 20, .55);
  border-radius: 999px;
}

.faq details {
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
}
.faq summary {
  cursor: pointer;
  font-size: 18px;
  font-weight: 700;
}
.faq p {
  margin: 10px 0 0;
  color: #cfd3dc;
  line-height: 1.8;
}

.voices { display: grid; gap: 14px; }
.voice {
  background: #12141c;
  border-left: 4px solid var(--flare);
  padding: 16px 18px;
}
.voice:nth-child(2) { width: 92%; }
.voice:nth-child(3) { width: 78%; }
.voice:nth-child(4) { width: 96%; }
.voice:nth-child(5) { width: 84%; }
.voice header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--gold);
  font-size: 13px;
  margin-bottom: 8px;
}
.voice p { margin: 0; line-height: 1.75; color: #e8eadf; }

.foot {
  padding: 28px 0 110px;
  border-top: 1px solid var(--line);
  color: var(--mute);
}
.foot strong { color: var(--paper); }
.dock {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 40;
  background: var(--flare);
  color: #fff;
  text-decoration: none;
  padding: 12px 18px;
  font-weight: 700;
}

.glass {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.86);
  display: grid;
  place-items: center;
  z-index: 50;
  padding: 24px;
}
.glass[hidden] { display: none; }
.glass img { max-height: 88vh; max-width: 92vw; object-fit: contain; }
.glass-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: #fff;
  border: 0;
  padding: 8px 12px;
}

@media (max-width: 900px) {
  .sprocket { display: none; }
  .ticket-bar { grid-template-columns: 1fr auto auto; padding: 10px 14px; }
  .lane {
    display: none;
    position: absolute;
    top: 62px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: #0c0e14;
    padding: 16px;
  }
  .lane.open { display: flex; }
  .nav-btn { display: block; }
  .house {
    grid-template-columns: 1fr;
    max-height: none;
    min-height: 100svh;
  }
  .copy { padding: 24px 18px 8px; }
  .copy h1 { font-size: clamp(52px, 16vw, 84px); }
  .stage { padding: 0 18px 18px; }
  .phones { width: 100%; height: 58vh; min-height: 380px; }
  .phone.a { right: 8%; width: 48%; }
  .phone.b { right: 46%; width: 42%; }
  .phone.c { display: none; }
  .board {
    grid-template-columns: 1fr;
    padding: 22px 16px;
  }
  .board-shots {
    width: 100%;
    justify-content: center;
  }
  .board-shots .device,
  .board-shots .device:nth-child(2) {
    width: min(44vw, 170px);
    transform: none;
  }
  .lanes { grid-template-columns: 1fr; }
  .lane-card .device { width: min(58vw, 240px); }
  .gallery .device { flex-basis: 168px; }
  .voice { width: 100% !important; }
  .wrap { width: calc(100% - 28px); }
}