/* Review-specific headline sizing and mobile composition; index.html remains unchanged. */
#hero .hero-title-desktop { display: block; }
#hero .hero-title-mobile { display: none; }
.language-switch .language-mobile { display: none; }
/* Full desktop navigation floats over the film; scrolling restores the solid header. */
@media (min-width: 1021px) {
  .site-header {
    width: min(1280px, calc(100% - 72px));
    min-height: 68px;
    padding: 12px 18px;
  }
  .site-header .nav-links { gap: 4px; }
  .site-header .nav-links > a { font-size: 14px; font-weight: 600; }
  .site-header:not(.is-scrolled):not(.is-open) {
    border-color: transparent;
    border-radius: 0;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    box-shadow: none;
  }
  .site-header:not(.is-scrolled):not(.is-open) .brand .bbt-tagline,
  .site-header:not(.is-scrolled):not(.is-open) .nav-links > a {
    color: #fff;
    text-shadow: 0 1px 8px rgba(0,0,0,.5);
  }
  .site-header:not(.is-scrolled):not(.is-open) .nav-links > a:hover {
    background: rgba(255,255,255,.12);
    text-decoration: underline;
    text-underline-offset: 5px;
  }
  .site-header:not(.is-scrolled):not(.is-open) .language-switch {
    border-color: rgba(255,255,255,.4);
    background: rgba(9,13,16,.16);
  }
  .site-header:not(.is-scrolled):not(.is-open) .language-switch button { color: #fff; }
  .site-header:not(.is-scrolled):not(.is-open) .language-switch button[aria-pressed="true"],
  .site-header:not(.is-scrolled):not(.is-open) .language-switch button:hover {
    background: rgba(255,255,255,.2);
    color: #fff;
  }
  .site-header:not(.is-scrolled):not(.is-open) a:focus-visible,
  .site-header:not(.is-scrolled):not(.is-open) button:focus-visible {
    outline-color: #ffcb27;
    box-shadow: 0 0 0 3px #18243b;
  }
  #hero .hero-shade {
    background: linear-gradient(180deg, rgba(9,13,16,.58) 0, rgba(9,13,16,.18) 130px, transparent 250px),
      linear-gradient(90deg, rgba(13,17,18,.66) 0%, rgba(13,17,18,.3) 34%, transparent 64%),
      linear-gradient(0deg, rgba(13,17,18,.22) 0%, transparent 48%);
  }
}
@media (min-width: 761px) {
  #hero .hero-copy { max-width: 1200px; }
  #hero h1 { font-size: clamp(42px, 5.3vw, 82px); line-height: 1.08; letter-spacing: -.04em; }
}
@media (max-width: 760px) {
  #hero .hero-title-desktop { display: none; }
  #hero .hero-title-mobile { display: block; }
  .site-header:not(.is-scrolled):not(.is-open) {
    top: 16px;
    left: 22px;
    right: 22px;
    width: auto;
    min-height: 48px;
    padding: 0;
    transform: none;
    border-color: transparent;
    border-radius: 0;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    box-shadow: none;
  }
  .site-header:not(.is-scrolled):not(.is-open) .brand { gap: 11px; }
  .site-header:not(.is-scrolled):not(.is-open) .brand img { width: 86px; }
  .site-header:not(.is-scrolled):not(.is-open) .brand .bbt-tagline {
    color: #fff;
    font-size: 12px;
    text-shadow: 0 1px 8px rgba(0,0,0,.4);
  }
  .site-header:not(.is-scrolled):not(.is-open) .menu-toggle {
    width: 44px;
    height: 44px;
    border-color: transparent;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    color: #fff;
  }
  .site-header:not(.is-scrolled):not(.is-open) .menu-toggle span { width: 23px; }
  .site-header:not(.is-scrolled):not(.is-open) a:focus-visible,
  .site-header:not(.is-scrolled):not(.is-open) button:focus-visible {
    outline-color: #ffcb27;
    box-shadow: 0 0 0 3px #18243b;
  }
  #hero.hero {
    min-height: 100vh;
    min-height: 100svh;
    min-height: 100dvh;
    align-items: flex-end;
    padding: 168px 24px calc(90px + env(safe-area-inset-bottom, 0px));
  }
  #hero .hero-media { overflow: hidden; }
  #hero .hero-media img, #hero .hero-media video {
    object-position: 50% center;
    transform: scale(1.5);
    transform-origin: 50% 36%;
  }
  #hero .hero-shade {
    background: linear-gradient(180deg, rgba(9,13,16,.62) 0%, rgba(9,13,16,.2) 15%, transparent 32%),
      linear-gradient(0deg, rgba(9,13,16,.77) 0%, rgba(9,13,16,.56) 25%, rgba(9,13,16,.16) 49%, transparent 67%);
  }
  #hero .hero-copy { max-width: 100%; }
  #hero h1 {
    font-size: clamp(30px, 8.4vw, 40px);
    line-height: 1.08;
    font-weight: 600;
    letter-spacing: -.035em;
  }
  html[lang^="zh"] #hero h1 { font-size: clamp(34px, 9.8vw, 46px); line-height: 1.18; }
  #hero .hero-copy > p { margin-top: 18px; font-size: 14px; line-height: 1.55; }
  #hero .hero-actions { margin-top: 25px; gap: 14px; align-items: center; }
  #hero .hero-actions .button {
    min-height: 48px;
    padding: 11px 20px;
    border: 1px solid rgba(255,255,255,.9);
    border-radius: 2px;
    background: rgba(9,13,16,.12);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .015em;
    box-shadow: none;
    text-shadow: none;
  }
  #hero .hero-actions .button:hover { background: rgba(255,255,255,.16); }
  #hero .hero-actions .button:not(.button-outline) {
    border-color: var(--yellow);
    background: var(--yellow);
    color: var(--ink);
  }
  #hero .hero-actions .button-outline {
    padding-inline: 2px;
    border-color: transparent;
    background: transparent;
    text-decoration: underline;
    text-decoration-color: rgba(255,255,255,.65);
    text-underline-offset: 5px;
  }
  #hero .hero-actions .button-outline:hover { background: transparent; text-decoration-color: #fff; }
  #hero .hero-video-toggle {
    right: 20px;
    bottom: calc(20px + env(safe-area-inset-bottom, 0px));
    border-color: rgba(255,255,255,.35);
    background: rgba(9,13,16,.22);
  }
  /* One full-screen navigation surface, with a scrollable interior on short screens. */
  html.mobile-menu-open,
  html.mobile-menu-open body { overflow: hidden; overscroll-behavior: none; }
  html.mobile-menu-open body {
    position: fixed;
    top: var(--menu-scroll-top, 0px);
    left: 0;
    right: 0;
    width: 100%;
  }
  .site-header.is-open {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    min-height: 0;
    max-height: none;
    transform: none;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: 48px minmax(0, 1fr);
    gap: 0 12px;
    align-content: stretch;
    align-items: center;
    padding: calc(16px + env(safe-area-inset-top, 0px)) 22px calc(28px + env(safe-area-inset-bottom, 0px));
    border: 0;
    border-radius: 0;
    background: rgba(13, 17, 18, .94);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    box-shadow: none;
    overflow: hidden;
  }
  .site-header.is-open .brand { gap: 11px; }
  .site-header.is-open .brand img { width: 86px; }
  .site-header.is-open .brand .bbt-tagline { color: #fff; font-size: 12px; }
  .site-header.is-open .menu-toggle {
    grid-column: 2;
    grid-row: 1;
    width: 44px;
    height: 44px;
    color: #fff;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
  }
  .site-header.is-open .menu-toggle span { width: 23px; }
  .site-header.is-open .nav-links {
    position: static;
    grid-column: 1 / -1;
    grid-row: 2;
    align-self: stretch;
    min-height: 0;
    max-height: none;
    width: 100%;
    padding: clamp(26px, 7dvh, 72px) 0 8px;
    margin: 0;
    gap: 0;
    justify-content: flex-start;
    border: 0;
    border-radius: 0;
    background: transparent;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
  }
  .site-header.is-open .nav-links > a {
    flex: 0 0 auto;
    padding: 17px 2px;
    border-radius: 0;
    border-bottom: 1px solid rgba(255,255,255,.13);
    color: #fff;
    font-size: clamp(26px, 7.2vw, 32px);
    font-weight: 500;
    line-height: 1.25;
    letter-spacing: -.025em;
    background: transparent;
  }
  .site-header.is-open .nav-links > a:hover,
  .site-header.is-open .nav-links > a:focus-visible { color: var(--yellow); background: transparent; }
  .site-header.is-open a:focus-visible,
  .site-header.is-open button:focus-visible { outline-color: var(--yellow); outline-offset: -3px; }
  .site-header.is-open .language-switch {
    display: inline-flex;
    align-self: flex-start;
    align-items: center;
    flex: 0 0 auto;
    width: auto;
    gap: 8px;
    margin: auto 0 0;
    padding: 32px 0 0;
    border: 0;
    border-radius: 0;
    background: transparent;
  }
  .site-header.is-open .language-switch button {
    min-width: 44px;
    min-height: 44px;
    padding: 8px 4px;
    border-radius: 0;
    color: rgba(255,255,255,.72);
    font-size: 14px;
    font-weight: 600;
    background: transparent;
  }
  .site-header.is-open .language-switch button + button { margin-left: 8px; position: relative; }
  .site-header.is-open .language-switch button + button::before {
    content: "/";
    position: absolute;
    left: -12px;
    color: rgba(255,255,255,.35);
    font-weight: 400;
  }
  .site-header.is-open .language-switch button[aria-pressed="true"],
  .site-header.is-open .language-switch button:hover {
    color: var(--yellow);
    background: transparent;
  }
  .site-header.is-open .language-switch button[aria-pressed="true"] { text-decoration: underline; text-underline-offset: 6px; }
  .language-switch .language-desktop { display: none; }
  .language-switch .language-mobile { display: inline; }
  @media (max-width: 350px) {
    .site-header:not(.is-scrolled):not(.is-open) { left: 18px; right: 18px; }
    .site-header:not(.is-scrolled):not(.is-open) .brand img { width: 76px; }
    .site-header:not(.is-scrolled):not(.is-open) .brand .bbt-tagline { font-size: 11px; }
    #hero.hero { padding-inline: 20px; }
    #hero .hero-actions { gap: 12px; }
    #hero .hero-actions .button { padding-inline: 15px; font-size: 12px; }
    #hero .hero-actions .button-outline { padding-inline: 2px; }
  }
}