/* 2026-10-05: reading order, accessible playback and compact mobile plans. */
.nav-dc { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; flex: none; border-radius: 7px; color: var(--muted); }
.nav-dc svg { width: 19px; height: 19px; }
.nav-dc:hover { color: var(--text); background: #f5b3420a; }
.mnav-dc { display: flex; align-items: center; min-height: 44px; }
.i18n-switch { color: var(--text); border: 1px solid var(--line2); border-radius: 7px; background: var(--panel); min-height: 44px; max-width: 120px; padding: 6px 9px; font: 12px var(--sans); }
.mobile-language { padding-block: 8px; }
html[lang="ja"] { --sans: "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, system-ui, sans-serif; --serif: "Hiragino Mincho ProN", "Yu Mincho", Georgia, serif; }
html[lang="ja"] em { font-style: normal; }
/* Translated headlines need natural line breaks instead of the English fit. */
html[lang="ja"] .hero h1, html[lang="fr"] .hero h1 { white-space: normal; }
html[lang="ja"] .hero-copy, html[lang="fr"] .hero-copy,
html[lang="ja"] .demo-wrap, html[lang="fr"] .demo-wrap { min-width: 0; }
.nav-inner { gap: 44px; }
.nav-actions { gap: 19px; }
.social-links { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.social-link { display: inline-flex; justify-content: center; align-items: center; gap: 8px; min-width: 44px; min-height: 44px; border: 1px solid var(--line2); border-radius: 7px; color: var(--muted); transition: background .18s, color .18s; }
.social-link svg { width: 19px; height: 19px; flex: none; }
.social-link:hover { color: var(--light); background: #f5b3420a; }
.nav-social { border-color: transparent; }
.footer-socials { margin-top: 18px; }
.footer-socials .social-link { padding: 0 12px; font-size: 12px; }
.planned-demo-link { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; margin-top: 13px; color: var(--violet); font-size: 12px; }
.planned-demo-link:hover { color: var(--text); }
.hero-copy .lead { max-width: 455px; }
.hero-copy .hero-models { margin-top: 23px; }

/* The controls precede the log. Stage height never depends on log length. */
#workflow, #demo { scroll-margin-top: 0; }
.terminal { transform: perspective(1800px) rotateY(-1deg); }
.terminal-chrome { height: 36px; }
.terminal .demo-controls { margin: 0; padding: 5px 15px 0; border-bottom: 1px solid var(--line); background: #0d0f1499; font-family: var(--sans); }
.terminal .stage-tabs { border-bottom-color: var(--line); }
.terminal .stage-tabs button { min-height: 44px; padding-bottom: 6px; }
.terminal .playback { margin-top: 0; }
.terminal .playback button { min-height: 44px; }
.terminal-context { height: 45px; min-height: 45px; padding: 10px 18px; }
.demo-task { height: 34px; margin: 0 18px; padding: 5px 0; font: 11px/1.7 var(--mono); color: var(--text); overflow-wrap: anywhere; }
.demo-task-label { color: var(--amber); font-size: 9px; letter-spacing: .05em; margin-right: 8px; }
.demo-insight { display: flex; align-items: center; height: 49px; margin: 0 18px 9px; padding: 7px 11px; border-left: 2px solid #f5b34265; background: #f5b34205; font: 11px/1.6 var(--mono); color: var(--muted); overflow-wrap: anywhere; }
.terminal-output { height: clamp(255px, calc(100svh - 470px), 330px); padding-top: 7px; padding-bottom: 18px; font-size: 12px; }
.terminal-input { padding-block: 9px; }
.terminal-status { padding-block: 7px; }
.log-line { animation: log-arrive .16s ease-out; }
@keyframes log-arrive { from { opacity: .5; } to { opacity: 1; } }
.demo-wrap > .script-note { margin-top: 11px; }
.demo-wrap > .script-note + .script-note { margin-top: 2px; }
.mobile-plan-inclusions { display: none; }

@media (min-width: 981px) and (max-width: 1200px) {
  .nav-inner { gap: 26px; }
  .desktop-nav { gap: 20px; }
  .nav-actions { gap: 11px; }
  .terminal-context { font-size: 9px; }
}
@media (max-width: 980px) {
  .desktop-nav, .nav-actions { display: none; }
  .menu-toggle { display: block; }
  .nav-inner { height: 68px; }
  .mobile-nav .social-link { justify-content: flex-start; padding-inline: 12px; margin-block: 8px; width: fit-content; }
}
@media (max-width: 800px) {
  .terminal { transform: none !important; }
  .terminal .demo-controls { padding-inline: 12px; }
}
@media (max-width: 580px) {
  .hero { gap: 30px; }
  .hero-copy .lead { font-size: 14px; line-height: 1.75; }
  .hero-cta { margin-top: 22px; }
  .planned-demo-link { font-size: 12px; min-height: 44px; margin-top: 11px; }
  .hero-copy .hero-models { margin-top: 17px; padding-top: 16px; }
  .demo-heading { flex-wrap: wrap; }
  .demo-disclaimer { font-size: 11px; max-width: none; }
  .terminal-chrome { height: 32px; }
  .terminal .demo-controls { padding-top: 2px; }
  .terminal .stage-tabs button { min-height: 44px; font-size: 10px; }
  .terminal .playback button { min-height: 44px; }
  .terminal-context { height: 45px; min-height: 45px; padding: 8px 12px; }
  .demo-task { height: 46px; margin-inline: 12px; padding-block: 5px; font-size: 12px; line-height: 1.7; }
  .demo-insight { height: 76px; margin: 0 12px 7px; padding: 6px 9px; font-size: 12px; line-height: 1.6; }
  .terminal-output { height: clamp(230px, calc(100svh - 470px), 318px); font-size: 12px; line-height: 1.8; padding-inline: 13px; }
  .terminal-input { padding-block: 8px; }
  .terminal-status { font-size: 8px; padding-block: 7px; }
  .script-note { font-family: var(--sans); font-size: 10px; line-height: 1.7; }
  .future-section .section-heading br { display: none; }
  .entry-section .section-heading h2 { font-size: 34px; }
  .footer-socials .social-link { min-height: 44px; }

  /* All four tiers stay visible. Shared benefits appear once, above the list. */
  .mobile-plan-inclusions { display: block; margin: 18px 0; padding: 18px; background: #13151c77; border: 1px solid var(--line); border-radius: 8px; }
  .mobile-plan-inclusions h3 { font-size: 14px; margin: 0 0 12px; }
  .mobile-plan-inclusions ul { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 12px; list-style: none; margin: 0; padding: 0; }
  .mobile-plan-inclusions li { color: var(--muted); font-size: 11px; line-height: 1.6; }
  .mobile-plan-inclusions li::before { content: '✓ '; color: var(--green); }
  .plans { gap: 13px; }
  .plan { display: grid; grid-template-columns: minmax(0,1.2fr) minmax(0,1fr); column-gap: 16px; row-gap: 6px; padding: 21px 19px 18px; }
  .plan-heading { grid-column: 1; grid-row: 1; display: block; min-height: 23px; }
  .plan-heading h3 { font-size: 19px; }
  .plan-tag { display: block; margin-top: 6px; font-size: 8px; }
  .plan-desc { grid-column: 1; grid-row: 2; margin-top: 0; font-size: 11px; line-height: 1.6; }
  .plan .price { grid-column: 2; grid-row: 1 / 3; align-self: start; justify-content: flex-end; flex-wrap: wrap; font-size: 38px; margin: 0; line-height: 1.15; }
  .plan .price > span { font-size: 22px; }
  .plan .price small { flex-basis: 100%; margin: 5px 0 0; text-align: right; font-size: 11px; }
  .plan-allowance { grid-column: 1; grid-row: 3 / 5; margin-top: 11px; padding-top: 13px; }
  .plan-allowance .estimate-number { font-size: 26px; }
  .plan-allowance > span:nth-child(2) { font-size: 10px; line-height: 1.5; margin-top: 3px; }
  .plan-allowance small { display: block; font-size: 10px; margin-top: 10px; }
  .allowance-track, .plan-features { display: none; }
  .plan > .btn { grid-column: 2; grid-row: 3; align-self: end; min-height: 44px; padding: 10px 8px; font-size: 11px; gap: 7px; margin-top: 15px; }
  .no-renewal { grid-column: 2; grid-row: 4; margin-top: 2px; font-size: 9px; line-height: 1.6; text-align: center; }
  .custom-plan { margin-top: 18px; }
}
@media (max-width: 359px) {
  .hero-copy .lead { font-size: 14px; }
  .hero-cta { gap: 7px; }
  .hero-cta .btn { font-size: 11px; padding-inline: 12px; }
  .hero-cta .btn-text { font-size: 10px; padding-inline: 0; }
  .planned-demo-link { font-size: 11px; }
  .terminal .stage-tabs button { font-size: 9px; }
  .terminal-output { font-size: 12px; }
  .demo-task { font-size: 11px; }
  .demo-insight { font-size: 11px; }
  .plan { column-gap: 12px; padding-inline: 17px; }
  .plan .price { font-size: 33px; }
  .plan > .btn { font-size: 10px; gap: 5px; padding-inline: 7px; }
  .mobile-plan-inclusions { padding-inline: 15px; }
  .mobile-plan-inclusions li { font-size: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  .log-line { animation: none; }
  .terminal { transform: none !important; }
}

/* 2026-10-09: recorded session in the hero, one-line install, named models. */
.hero-install { margin-top: 24px; }
.install-label { display: block; font: 10px/1.6 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--amber); }
.install-os { color: var(--dim); letter-spacing: .05em; margin-left: 8px; }
.install-cmd { display: flex; align-items: center; gap: 10px; margin-top: 8px; padding: 8px 8px 8px 14px; border: 1px solid var(--line2); border-radius: 8px; background: #0d0f14; max-width: 455px; }
.install-cmd code { flex: 1; min-width: 0; font: 12px/1.7 var(--mono); color: var(--text); white-space: pre-wrap; overflow-wrap: anywhere; }
.copy-btn { flex: none; min-height: 32px; padding: 0 11px; border: 1px solid var(--line2); border-radius: 6px; background: #ffffff08; color: var(--muted); font-size: 11px; }
.copy-btn:hover { color: var(--text); background: #f5b3420f; }
.copy-btn.is-copied { color: var(--green); border-color: #7ee0a055; }
.install-alt { margin-top: 8px; font-size: 11px; line-height: 1.7; color: var(--dim); }
.install-alt code { font: 11px var(--mono); color: var(--muted); }
.install-alt a { color: var(--muted); text-decoration: underline; text-underline-offset: 3px; }
.hero > .hero-models { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px 32px; max-width: none; margin-top: 4px; padding-top: 22px; border-top: 1px solid var(--line); }
.hero > .hero-models .models-note { grid-column: 1 / -1; margin-top: 4px; }
.model-row { display: grid; grid-template-columns: 22px 60px minmax(0, 1fr); align-items: baseline; gap: 8px; padding: 5px 0; font-size: 13px; }
.model-row b { font-weight: 500; color: #dbd7cc; }
.model-mark { font-size: 18px; line-height: 1; }
.claude .model-mark { color: #d39b79; }
.gpt .model-mark { color: #ddd; }
.grok .model-mark { color: #c2beb6; }
.model-list { font: 12px/1.6 var(--mono); color: var(--muted); overflow-wrap: anywhere; }
.models-note { margin-top: 8px; font-size: 11px; line-height: 1.7; color: var(--dim); }
.models-note code, .lead code { font: .92em var(--mono); color: var(--text); }
.live-tag { font: 9px/1.4 var(--mono); letter-spacing: .07em; padding: 4px 7px; border: 1px solid #7ee0a055; border-radius: 4px; color: var(--green); background: #7ee0a00d; text-transform: uppercase; }
.video-terminal { margin: 0; position: relative; transform: none; }
.demo-video { display: block; width: 100%; height: auto; aspect-ratio: 2024 / 1244; background: #111319; }
.video-box { position: relative; }   /* 按钮的定位基准是视频本身，不含上面的标题条和下面的状态条 */
.video-toggle { position: absolute; right: 14px; bottom: calc(10% + 5px); min-width: 36px; min-height: 36px; border: 1px solid var(--line2); border-radius: 6px; background: #0d0f14cc; color: var(--muted); font-size: 12px; }
.video-toggle:hover { color: var(--text); }
.refund-line { margin: 14px 0 0; font-size: 12px; line-height: 1.7; color: var(--muted); }
.refund-line b { color: var(--text); }
.refund-line a { color: var(--muted); text-decoration: underline; text-underline-offset: 3px; }
.future-demo { max-width: 820px; margin: 56px auto 0; }
.future-demo .demo-disclaimer a { color: var(--violet); }
@media (max-width: 1000px) {
  .hero > .hero-models { grid-template-columns: 1fr; gap: 2px; }
}
@media (max-width: 580px) {
  .install-cmd { padding-left: 12px; }
  .install-cmd code { font-size: 11px; }
  .model-row { grid-template-columns: 20px 54px minmax(0, 1fr); font-size: 12px; }
  .video-toggle { bottom: calc(10% + 4px); right: 10px; }
}