.kts-demo {
  --kts-forest: #153b2c;
  --kts-green: #24744e;
  --kts-lime: #d9f66f;
  --kts-paper: #f4f7f3;
  --kts-ink: #17251e;
  --kts-muted: #63736a;
  --kts-line: #dce5de;
  margin: 26px 0 34px;
  color: var(--kts-ink);
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
}
.kts-demo *, .kts-demo *::before, .kts-demo *::after { box-sizing: border-box; }
.kts-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(230px, .9fr);
  gap: clamp(16px, 3vw, 34px);
  align-items: center;
  padding: clamp(18px, 3vw, 34px);
  border-radius: 20px;
  background: var(--kts-paper);
  border: 1px solid var(--kts-line);
}
.kts-tv { position: relative; padding: 9px 9px 13px; border-radius: 13px 13px 9px 9px; background: #18251f; box-shadow: 0 14px 30px rgba(20, 44, 31, .18); }
.kts-tv-camera { position: absolute; z-index: 1; top: 3px; left: 50%; width: 4px; height: 4px; border-radius: 50%; background: #64776b; }
.kts-display { aspect-ratio: 16 / 9; overflow: hidden; border-radius: 5px; background: radial-gradient(ellipse at 50% 120%, #2e7150 0, #193d2d 56%, #10271d 100%); color: #fff; }
.kts-tv-screen { height: 100%; min-height: 180px; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 16px; text-align: center; }
.kts-tv-brand { align-self: flex-start; font-size: 12px; font-weight: 700; letter-spacing: .04em; color: rgba(255,255,255,.82); }
.kts-tv-state { margin-top: auto; font-size: clamp(12px, 1.4vw, 16px); color: #e1ebe2; }
.kts-tv-code-label { margin-top: 8px; font-size: 13px; color: #d1dfd4; }
.kts-tv-code { margin-top: 4px; color: var(--kts-lime); font-size: clamp(30px, 5vw, 54px); font-weight: 750; letter-spacing: .14em; line-height: 1.2; font-variant-numeric: tabular-nums; }
.kts-tv-fake { margin-top: 7px; font-size: 11px; color: #d3e5d8; }
.kts-install-icon { display: grid; place-items: center; width: 52px; height: 52px; margin-top: auto; border: 1px solid rgba(255,255,255,.45); border-radius: 12px; color: var(--kts-lime); font-size: 14px; font-weight: 800; letter-spacing: .08em; }
.kts-install-status { margin-top: auto; color: #e0f2e4; font-size: 12px; }
.kts-tv-bound { margin-top: auto; font-size: 12px; color: #d8e9dc; }
.kts-tv-content { margin-top: 10px; font-size: clamp(22px, 3.4vw, 42px); font-weight: 750; letter-spacing: .03em; }
.kts-tv-subcontent { margin-top: 5px; color: #cfdfd3; font-size: 13px; }
.kts-tv-balls { margin-top: auto; color: var(--kts-lime); letter-spacing: .35em; font-size: 19px; }
.kts-tv-foot { width: 19%; height: 8px; margin: 0 auto; background: #34463b; clip-path: polygon(25% 0,75% 0,100% 100%,0 100%); }
.kts-backend { min-width: 0; }
.kts-console { overflow: hidden; border: 1px solid #dce4dd; border-radius: 12px; background: #fff; box-shadow: 0 8px 22px rgba(20,44,31,.07); }
.kts-console-head { padding: 13px 15px; background: #f8faf8; border-bottom: 1px solid var(--kts-line); font-size: 14px; font-weight: 750; }
.kts-console-store { display: flex; justify-content: space-between; gap: 10px; padding: 11px 15px; border-bottom: 1px solid #edf1ee; font-size: 11px; color: var(--kts-muted); }
.kts-console-store b { color: var(--kts-ink); font-size: 11px; }
.kts-console-nav { display: flex; gap: 16px; padding: 10px 15px 0; font-size: 11px; color: var(--kts-muted); }
.kts-console-nav b { padding-bottom: 8px; color: var(--kts-green); border-bottom: 2px solid var(--kts-green); }
.kts-console-body { padding: 12px 15px 16px; }
.kts-console-body h3 { margin: 0 0 11px; font-size: 14px; }
.kts-console-empty { display: grid; min-height: 118px; place-items: center; padding: 18px; text-align: center; border: 1px dashed #cad7cd; border-radius: 8px; color: var(--kts-muted); font-size: 12px; line-height: 1.6; }
.kts-pair-field { display: flex; justify-content: space-between; align-items: center; padding: 10px 11px; border: 1px solid #cddbd0; border-radius: 7px; font-size: 11px; color: var(--kts-muted); }
.kts-pair-field b { font-size: 18px; letter-spacing: .1em; color: var(--kts-ink); }
.kts-store-verified { padding: 8px 0; color: var(--kts-green); font-size: 11px; }
.kts-screen-choice { display: flex; gap: 8px; margin-top: 4px; }
.kts-choice { flex: 1; padding: 9px 7px; text-align: center; border: 1px solid #dce5de; border-radius: 7px; color: var(--kts-muted); font-size: 11px; }
.kts-choice.is-selected { border-color: var(--kts-green); background: #edf6ef; color: #205c3e; font-weight: 700; }
.kts-table-choice { margin-top: 8px; padding: 9px 10px; border: 1px solid #dce5de; border-radius: 7px; font-size: 11px; }
.kts-confirm { margin-top: 10px; padding: 9px 12px; border-radius: 7px; background: var(--kts-green); color: #fff; text-align: center; font-size: 12px; font-weight: 700; }
.kts-copy { padding: 15px 2px 0; color: var(--kts-ink); background: transparent; }
.kts-title { margin: 0; font-size: 20px; line-height: 1.35; color: var(--kts-ink); }
.kts-caption { max-width: 70ch; margin: 5px 0 0; color: #53665a; font-size: 14px; line-height: 1.7; }
.kts-controls { display: flex; align-items: center; gap: 14px; margin-top: 13px; }
.kts-play, .kts-step-button { min-width: 44px; min-height: 44px; border: 1px solid #cad8cd; background: #fff; color: var(--kts-ink); font: inherit; cursor: pointer; }
.kts-play { min-width: 88px; padding: 0 13px; border-radius: 8px; color: #fff; border-color: var(--kts-green); background: var(--kts-green); font-size: 13px; font-weight: 700; }
.kts-step-nav { display: flex; gap: 6px; }
.kts-step-button { width: 44px; min-width: 44px; min-height: 44px; border-radius: 50%; font-size: 13px; }
.kts-step-button.is-current { background: var(--kts-lime); border-color: var(--kts-lime); font-weight: 800; }
.kts-progress { flex: 1; height: 4px; overflow: hidden; border-radius: 8px; background: #e1e9e3; }
.kts-progress::before { content: ''; display: block; width: var(--kts-progress, 20%); height: 100%; border-radius: inherit; background: var(--kts-green); transition: width .25s ease; }
.kts-demo button:focus-visible { outline: 3px solid #8bb82d; outline-offset: 3px; }
@media (max-width: 720px) {
  .kts-layout { grid-template-columns: 1fr; }
  .kts-tv-screen { min-height:0; padding:10px; }
  .kts-tv-state, .kts-tv-subcontent { font-size:11px; }
  .kts-tv-brand, .kts-tv-fake { font-size:10px; }
  .kts-tv-brand, .kts-tv-state, .kts-tv-code-label, .kts-tv-fake, .kts-tv-subcontent { line-height:1.25; }
  .kts-controls { flex-wrap: wrap; }
  .kts-progress { flex-basis: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .kts-progress::before { transition: none; }
}