/* Landing layout is deliberately independent of the shop's saved theme. */
body.landing-mode {
  color-scheme: dark;
  color: #f7f8ff;
  background: #020307;
  isolation: isolate;
  min-height: 100svh;
  font-family: "Microsoft YaHei", "微软雅黑", Arial, Helvetica, sans-serif;
}
.landing-mode .header { height: 108px; position: relative; background: transparent; border: 0; backdrop-filter: none; }
.landing-nav, .landing-content, .landing-footer-inner { width: min(1240px, calc(100% - 112px)); margin-inline: auto; }
.landing-nav { height: 100%; display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); align-items: center; gap: 28px; }
.landing-brand { color: #f8f9ff; font-family: Arial, Helvetica, sans-serif; font-size: 32px; font-weight: 750; letter-spacing: -1.8px; line-height: 1; white-space: nowrap; justify-self: start; }
.landing-nav-links { display: flex; align-items: center; justify-content: center; gap: 32px; margin-left: 0; }
.landing-nav-links > a { font-size: 16px; padding-block: 15px; color: #e0e4ef; white-space: nowrap; }
.landing-nav-links > a:hover { color: #fff; }
.landing-nav-actions { display: flex; align-items: center; justify-self: end; gap: 24px; }
.landing-language { display: flex; align-items: center; gap: 7px; color: #a6afc4; min-height: 44px; font-size: 14px; }
.landing-language .selected { color: #fff; }
.landing-language-slash { color: #68748b; }
.landing-contact { min-height: 46px; border: 1px solid #ffffff38; border-top-color: #ffffff70; border-radius: 26px; padding: 0 20px; font-size: 15px; white-space: nowrap; background: linear-gradient(145deg, #ffffff12, #ffffff04); backdrop-filter: blur(5px) saturate(125%); -webkit-backdrop-filter: blur(5px) saturate(125%); box-shadow: inset 0 1px 0 #ffffff14; }
.landing-contact:hover { background: #ffffff20; }
.landing-mode main { flex: 1; width: 100%; }
.landing-hero { display: grid; grid-template-columns: minmax(0, 1fr) 360px; column-gap: 65px; padding: 47px 0 61px; }
.landing-mode h1 { color: #fff; text-shadow: 0 2px 40px #0008; font-family: Arial, Helvetica, sans-serif; font-size: clamp(72px, 7.75vw, 112px); font-weight: 750; line-height: .96; letter-spacing: -.065em; margin: 0; max-width: 780px; }
.landing-hero-aside { padding-top: 13px; }
.landing-eyebrow { display: block; color: #b1bbd1; font-size: 14px; letter-spacing: 1px; margin-bottom: 23px; }
.landing-hero-aside > p { max-width: 360px; color: #e2e7f3; font-size: 18px; line-height: 1.85; letter-spacing: 0; text-shadow: 0 2px 10px #0009; }
.landing-text-link { display: inline-flex; align-items: center; gap: 12px; color: #f2f5ff; font-size: 16px; margin-top: 25px; min-height: 40px; }
.landing-text-link .icon { width: 18px; height: 18px; }
.landing-text-link:hover { text-decoration: underline; text-underline-offset: 5px; }
.landing-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 35px; }
.landing-pill { display: inline-flex; align-items: center; justify-content: center; gap: 28px; border-radius: 30px; border: 1px solid #252525; min-height: 52px; padding: 0 27px; font-size: 16px; transition: background .18s, transform .18s; }
.landing-pill .icon { width: 18px; height: 18px; }
.landing-pill-primary { background: linear-gradient(140deg, #ffffff30, #ffffff12); color: #fff; border-color: #ffffff55; border-top-color: #ffffffa0; backdrop-filter: blur(5px) saturate(130%); -webkit-backdrop-filter: blur(5px) saturate(130%); box-shadow: inset 0 1px 0 #ffffff26, 0 6px 24px #0002; }
.landing-pill-primary:hover { background: #ffffff38; transform: translateY(-1px); }
.landing-pill-secondary { background: linear-gradient(140deg, #ffffff12, #ffffff03); color: #f2f5ff; border-color: #ffffff35; border-top-color: #ffffff70; backdrop-filter: blur(4px) saturate(125%); -webkit-backdrop-filter: blur(4px) saturate(125%); box-shadow: inset 0 1px 0 #ffffff12; }
.landing-pill-secondary:hover { background: #ffffff1e; transform: translateY(-1px); }
.landing-discover { position: relative; isolation: isolate; overflow: hidden; min-height: 358px; border-radius: 34px; background: linear-gradient(115deg, #edf3ff13 0%, #eff5ff05 48%, #d8e8ff0c 100%); border: 1px solid #e4edff2e; border-top-color: #f2f7ff66; backdrop-filter: blur(4px) saturate(125%); -webkit-backdrop-filter: blur(4px) saturate(125%); box-shadow: inset 0 1px 0 #ffffff13, inset 0 -1px 0 #ffffff06, 0 12px 40px #00000012; color: #f7f8ff; padding: 30px 34px 33px; display: flex; flex-direction: column; justify-content: space-between; }
/* The cover stays beneath the video for reduced motion and loading failures. */
.landing-video-backdrop { position: fixed; inset: 0; z-index: -1; overflow: hidden; background: #020307 url("./assets/black-hole-poster.jpg") center 45% / cover no-repeat; pointer-events: none; }
.landing-video-backdrop::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, #02040b50 0%, #02040b12 27%, transparent 43%, transparent 66%, #02040b1a 82%, #02040b50 100%), linear-gradient(180deg, #02040b16, transparent 27%, transparent 78%, #02040b24); }
.landing-video { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center 45%; opacity: 0; }
.video-ready .landing-video { opacity: 1; }
.landing-discover::before { content: ""; position: absolute; z-index: -1; inset: 0; pointer-events: none; background: linear-gradient(165deg, #ffffff07, transparent 40%, #ffffff03); }
.landing-panel-controls { display: flex; align-items: center; justify-content: flex-end; gap: 20px; }
.landing-video-toggle { display: inline-flex; gap: 7px; align-items: center; justify-content: center; min-height: 44px; padding: 0 14px; border: 1px solid #ffffff38; border-top-color: #ffffff66; border-radius: 24px; color: #fff; background: linear-gradient(145deg, #ffffff12, #ffffff04); font-size: 13px; white-space: nowrap; backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); box-shadow: inset 0 1px 0 #ffffff0d; }
.landing-video-toggle:hover { background: #ffffff24; border-color: #ffffff80; }
.landing-video-toggle svg { width: 14px; height: 14px; flex-shrink: 0; }
.landing-video-toggle .landing-video-pause, .landing-video-toggle.is-playing .landing-video-play { display: none; }
.landing-video-toggle.is-playing .landing-video-pause { display: block; }
.landing-video-toggle:disabled { cursor: default; opacity: .72; }
.landing-discover :is(button, a):focus-visible { outline-color: #fff; }
.landing-panel-top { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.landing-categories { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.landing-categories button { min-height: 44px; padding: 0 20px; border: 1px solid #ffffff38; border-top-color: #ffffff66; border-radius: 24px; background: linear-gradient(140deg, #ffffff12, #ffffff04); color: #eef1ff; font-size: 15px; backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); box-shadow: inset 0 1px 0 #ffffff10; }
.landing-categories button:first-child { background: linear-gradient(140deg, #ffffff2e, #ffffff12); border-color: #ffffff66; border-top-color: #ffffffa0; color: #fff; }
.landing-categories button:hover { background: #ffffff30; color: #fff; border-color: #ffffff90; }
.landing-panel-status { display: flex; gap: 8px; align-items: center; flex-shrink: 0; color: #c4cbdc; font-size: 13px; letter-spacing: .5px; }
.landing-panel-status > span { width: 7px; height: 7px; border-radius: 50%; background: #99c5b6; }
.landing-panel-bottom { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, 520px); gap: 46px; align-items: end; padding-top: 74px; }
.landing-panel-kicker { display: block; margin-bottom: 13px; color: #c4cbdc; font-size: 14px; letter-spacing: .5px; }
.landing-panel-copy h2 { font-size: 36px; font-weight: 600; line-height: 1.35; letter-spacing: 0; color: #f8f9ff; text-shadow: 0 2px 12px #0008; }
.landing-search-form { width: 100%; }
.landing-search-form > label { display: block; font-size: 16px; color: #eef1ff; margin-bottom: 13px; }
.landing-search-field { display: flex; align-items: center; gap: 12px; height: 61px; border: 1px solid #ffffff40; border-top-color: #ffffff80; background: linear-gradient(125deg, #ffffff20, #ffffff0b); padding: 7px 8px 7px 20px; border-radius: 16px; backdrop-filter: blur(5px) saturate(120%); -webkit-backdrop-filter: blur(5px) saturate(120%); box-shadow: inset 0 1px 0 #ffffff20, 0 4px 18px #0000000d; transition: background .18s, border-color .18s; }
.landing-search-field:focus-within { border-color: #c4d4ff; background: #ffffff24; }
.landing-search-field input { min-width: 0; width: 100%; height: 100%; font: inherit; font-size: 16px; border: 0; padding: 0; background: transparent; color: #fff; outline: none; }
.landing-search-field input::placeholder { color: #d0d6e6; opacity: 1; }
.landing-search-field input:focus-visible { outline: none; }
.landing-search-submit { flex: none; width: 43px; height: 43px; border-radius: 11px; display: grid; place-items: center; background: #ffffff20; border: 1px solid #ffffff36; box-shadow: inset 0 1px 0 #ffffff1a; color: #fff; }
.landing-search-submit .icon { height: 19px; width: 19px; }
.landing-search-submit:hover { background: #ffffff40; }
.landing-mode .footer { background: transparent; border: 0; }
.landing-footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px 24px; padding: 28px 0 30px; color: #9daac1; font-size: 12px; }
.landing-footer-inner > a:hover { color: #fff; }
.landing-mode .skip { background: #fff; color: #111; }
.landing-mode :is(button, a):focus-visible { outline: 2px solid #d1dfff; outline-offset: 4px; }
html[lang=en] body.landing-mode { font-family: Arial, Helvetica, "Microsoft YaHei", "微软雅黑", sans-serif; }
html[lang=en] .landing-mode h1 { letter-spacing: -.065em; }
html[lang=en] .landing-panel-copy h2 { font-size: 37px; letter-spacing: -1.5px; }
@media (min-width: 1600px) { .landing-hero { padding-top: 63px; padding-bottom: 65px; } }
@media (max-width: 1100px) {
  .landing-nav, .landing-content, .landing-footer-inner { width: calc(100% - 72px); }
  .landing-nav { gap: 20px; }
  .landing-nav-links { margin-left: 0; gap: 24px; }
  .landing-nav-actions { gap: 16px; }
  .landing-brand { font-size: 29px; }
  .landing-hero { grid-template-columns: minmax(0, 1fr) 310px; gap: 40px; }
  .landing-mode h1 { font-size: clamp(68px, 8.5vw, 92px); }
  .landing-hero-aside > p { font-size: 18px; }
  .landing-panel-bottom { grid-template-columns: minmax(0, 1fr) minmax(300px, 440px); gap: 30px; }
  .landing-contact { padding-inline: 14px; }
}
@media (max-width: 800px) {
  .landing-contact { display: none; }
  .landing-nav-links { gap: 22px; }
  .landing-hero { grid-template-columns: 1fr; gap: 36px; padding-top: 36px; }
  .landing-mode h1 { font-size: clamp(76px, 12vw, 92px); }
  .landing-hero-aside { padding-top: 0; max-width: 520px; }
  .landing-hero-aside > p { max-width: none; }
  .landing-eyebrow { margin-bottom: 18px; }
  .landing-hero-actions { margin-top: 30px; }
  .landing-pill { min-height: 52px; padding-inline: 25px; gap: 24px; }
  .landing-discover { padding-inline: 26px; }
  .landing-panel-bottom { grid-template-columns: 1fr; gap: 30px; padding-top: 58px; }
  .landing-panel-copy h2 { font-size: 34px; }
  .landing-search-field { padding-left: 14px; }
  .landing-search-field input { font-size: 16px; }
  html[lang=en] .landing-panel-copy h2 { font-size: 34px; }
}
@media (max-width: 680px) {
  .landing-mode .header { height: 112px; }
  .landing-nav, .landing-content, .landing-footer-inner { width: calc(100% - 40px); }
  .landing-nav { display: grid; grid-template-columns: 1fr auto; align-content: center; gap: 17px 16px; }
  .landing-brand { font-size: 27px; letter-spacing: -1.4px; }
  .landing-nav-actions { margin-left: 0; grid-column: 2; grid-row: 1; }
  .landing-language { min-height: 32px; gap: 6px; font-size: 14px; }
  .landing-nav-links { grid-column: 1 / -1; grid-row: 2; width: 100%; justify-content: space-between; gap: 18px; }
  .landing-nav-links > a { padding-block: 4px; font-size: 15px; }
  .landing-hero { grid-template-columns: 1fr; gap: 30px; padding: 29px 0 35px; }
  .landing-mode h1 { font-size: clamp(62px, 16.6vw, 91px); font-weight: 750; letter-spacing: -.065em; line-height: .96; }
  .landing-hero-actions { margin-top: 28px; gap: 10px; }
  .landing-pill { font-size: 15px; min-height: 49px; padding-inline: 23px; gap: 20px; }
  .landing-hero-aside { padding-top: 0; max-width: 450px; }
  .landing-eyebrow { font-size: 14px; letter-spacing: .5px; margin-bottom: 12px; }
  .landing-hero-aside > p { font-size: 16px; line-height: 1.85; max-width: none; }
  .landing-text-link { font-size: 15px; margin-top: 12px; }
  .landing-discover { border-radius: 25px; min-height: 355px; padding: 20px; }
  .landing-panel-top { align-items: flex-start; gap: 18px; flex-direction: column; }
  .landing-categories { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); width: 100%; gap: 6px; }
  .landing-categories button { min-height: 44px; padding: 7px 6px; font-size: 14px; line-height: 1.4; }
  .landing-panel-status { font-size: 13px; letter-spacing: .5px; margin-top: 0; }
  .landing-panel-bottom { grid-template-columns: 1fr; gap: 24px; padding-top: 40px; }
  .landing-panel-kicker { font-size: 14px; margin-bottom: 10px; }
  .landing-panel-copy h2 { font-size: 32px; line-height: 1.35; letter-spacing: 0; }
  .landing-search-form > label { font-size: 15px; margin-bottom: 11px; }
  .landing-search-field { height: 57px; padding: 7px 7px 7px 13px; border-radius: 14px; gap: 7px; }
  .landing-search-field input { font-size: 16px; }
  .landing-search-field input::placeholder { font-size: 14px; }
  .landing-search-submit { width: 41px; height: 41px; border-radius: 10px; }
  .landing-panel-controls { width: 100%; justify-content: space-between; gap: 12px; }
  .landing-video-toggle { min-height: 40px; padding-inline: 12px; font-size: 12px; }
  .landing-video-backdrop, .landing-video { background-position: 52% center; object-position: 52% center; }
  .landing-video-backdrop::after { background: linear-gradient(180deg, #02040b24, #02040b38 50%, #02040b55); }
  .landing-discover { background: #091020a3; }
  .landing-footer-inner { justify-content: space-between; padding: 23px 0; gap: 9px; font-size: 12px; }
  .landing-footer-inner > span:nth-child(2) { display: none; }
  html[lang=en] .landing-panel-copy h2 { font-size: 31px; }
}
@media (max-width: 360px) {
  .landing-nav, .landing-content, .landing-footer-inner { width: calc(100% - 32px); }
  .landing-mode h1 { font-size: 58px; }
  .landing-pill { padding-inline: 17px; gap: 14px; font-size: 14px; }
  .landing-categories button { padding-inline: 4px; font-size: 14px; }
  .landing-discover { padding-inline: 17px; }
}
/* On desktop, distribute available height rather than clipping the page. */
@media (min-width: 900px) and (min-height: 600px) {
  body.landing-mode { height: 100svh; min-height: 100svh; }
  .landing-mode .header { flex: 0 0 88px; height: 88px; }
  .landing-mode main { flex: 1 1 0; min-height: 0; display: flex; }
  .landing-content { height: 100%; min-height: 0; display: grid; grid-template-rows: minmax(0, 1fr) clamp(230px, 32svh, 290px); gap: 22px; }
  .landing-hero { min-height: 0; align-items: center; padding: 14px 0 10px; }
  .landing-mode h1 { font-size: clamp(60px, 9svh, 90px); }
  .landing-hero-aside { align-self: center; padding-top: 0; padding-bottom: 32px; }
  .landing-hero-actions { margin-top: 25px; }
  .landing-discover { height: 100%; min-height: 0; padding: 22px 28px; border-radius: 30px; }
  .landing-panel-top { min-height: 44px; }
  .landing-panel-bottom { padding-top: 0; }
  .landing-panel-status { font-size: 14px; }
  .landing-panel-kicker { margin-bottom: 8px; }
  .landing-panel-copy h2 { font-size: 34px; line-height: 1.25; }
  .landing-mode .footer { flex: 0 0 48px; height: 48px; }
  .landing-footer-inner { height: 100%; padding: 0; }
  html[lang=en] .landing-panel-copy h2 { font-size: 34px; line-height: 1.2; }
}
@media (min-width: 900px) and (min-height: 600px) and (max-height: 740px) {
  .landing-mode .header { flex-basis: 72px; height: 72px; }
  .landing-content { grid-template-rows: minmax(0, 1fr) clamp(210px, 32svh, 230px); gap: 14px; }
  .landing-hero { padding: 8px 0; column-gap: 48px; }
  .landing-mode h1 { font-size: clamp(60px, 9.4svh, 68px); }
  .landing-hero-actions { margin-top: 18px; }
  .landing-pill { min-height: 48px; font-size: 15px; padding-inline: 24px; }
  .landing-hero-aside { padding-bottom: 0; }
  .landing-eyebrow { margin-bottom: 12px; }
  .landing-hero-aside > p { font-size: 17px; line-height: 1.8; }
  .landing-text-link { margin-top: 12px; font-size: 15px; min-height: 32px; }
  .landing-discover { padding: 18px 26px; border-radius: 26px; }
  .landing-panel-top { min-height: 40px; }
  .landing-categories button { min-height: 40px; font-size: 14px; padding-inline: 18px; }
  .landing-panel-kicker { font-size: 14px; margin-bottom: 6px; }
  .landing-panel-copy h2 { font-size: 28px; line-height: 1.2; }
  .landing-search-form > label { font-size: 15px; margin-bottom: 8px; }
  .landing-search-field { height: 53px; border-radius: 13px; padding-block: 6px; }
  .landing-search-field input { font-size: 15px; }
  .landing-search-submit { width: 39px; height: 39px; border-radius: 9px; }
  .landing-mode .footer { flex-basis: 42px; height: 42px; }
  html[lang=en] .landing-panel-copy h2 { font-size: 28px; }
}
@media (prefers-reduced-motion: reduce) { .landing-mode *, .landing-mode *::before, .landing-mode *::after { transition: none !important; animation: none !important; } }