:root{color-scheme:dark;--black:#030609;--ink:#090e14;--mint:#7cf0d1;--white:#f5f7fb;--muted:#a8b4c3;--line:#24303b;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","PingFang TC",sans-serif;background:var(--black);color:var(--white);font-size:16px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:6rem}body{margin:0}a{color:inherit;text-decoration:none}a:focus-visible,summary:focus-visible,video:focus-visible{outline:3px solid var(--mint);outline-offset:6px}a:hover{color:var(--mint)}header{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:2rem;max-width:1520px;margin:auto;padding:1.8rem 5vw;flex-wrap:wrap;border-bottom:1px solid var(--line)}.brand{font-size:1.55rem;font-weight:750;letter-spacing:-.045em}.brand span{font-size:.875rem;letter-spacing:.14em;color:var(--mint);margin-left:.8rem}nav{display:flex;align-items:center;gap:2rem;font-size:.875rem}nav a{display:inline-block;padding:.6rem 0}.languages{display:flex;gap:.9rem;border-left:1px solid var(--line);padding-left:1.5rem}.languages [aria-current]{color:var(--mint)}.hero{position:relative;min-height:760px;max-width:1800px;margin:auto;overflow:hidden;display:flex;align-items:center}.hero-image{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:75% 50%;opacity:.85}.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#030609 0%,#030609e6 23%,#03060944 64%,transparent),linear-gradient(0deg,#030609,transparent 26%);pointer-events:none}.hero-copy{z-index:1;position:relative;padding:5rem 7vw;max-width:870px}.eyebrow{font-size:.8125rem;font-weight:650;letter-spacing:.2em;color:var(--mint);line-height:1.8;margin:0 0 1.7rem}h1{font-size:clamp(2.8rem,5.4vw,5.8rem);line-height:1.1;font-weight:650;letter-spacing:-.055em;margin:0 0 2rem}html[lang^=zh] h1{letter-spacing:-.015em;line-height:1.22}.intro{font-size:1.22rem;line-height:1.8;color:#c8d3df;max-width:490px;margin:0 0 2.2rem}.cta{display:inline-flex;align-items:center;justify-content:space-between;gap:2rem;background:var(--mint);color:#031813;padding:1rem 1.4rem;font-weight:650;border-radius:4px;min-height:52px}.cta:hover{background:#b2ffe9;color:#031813}.availability{font-size:.875rem;color:var(--muted);margin-top:1.1rem}.section{max-width:1320px;padding:5.5rem 5vw;margin:auto}h2{font-size:clamp(2rem,3vw,3.4rem);font-weight:600;letter-spacing:-.045em;line-height:1.2;margin:0 0 1.4rem}h3{font-size:1.5rem;font-weight:600;letter-spacing:-.025em;line-height:1.35;margin:1.4rem 0 1rem}p{line-height:1.85}.section-intro{color:var(--muted);max-width:760px;margin-bottom:2.4rem}.films{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;align-items:start}figure{margin:0}video{display:block;background:#000;width:100%;aspect-ratio:4/3;border:1px solid var(--line);object-fit:contain}figcaption{font-size:.875rem;color:var(--muted);padding:1rem 0}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:3.2rem;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.features p{color:var(--muted)}.index{font: .875rem ui-monospace,SFMono-Regular,monospace;color:var(--mint);border-top:2px solid var(--mint);padding-top:1rem;display:inline-block;width:3rem}.gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:2rem 1.5rem;margin-top:2.5rem}.gallery img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;display:block;border:1px solid #17212b}.gallery a{display:block}.offline{display:grid;grid-template-columns:.8fr 1.2fr;gap:4rem;border-top:1px solid var(--line)}.big-number{font-size:clamp(3rem,5.5vw,5.5rem);font-weight:600;letter-spacing:-.07em;line-height:1.2}.big-number span{font-size:.6em;color:var(--mint)}.offline p{color:#c8d3df}.scope{font-size:.875rem!important;color:var(--muted)!important;margin-top:2rem}footer{max-width:1520px;margin:auto;padding:3rem 5vw;border-top:1px solid var(--line);display:flex;gap:2rem;align-items:center;justify-content:space-between;color:var(--muted);font-size:.875rem}footer div{display:flex;gap:1.5rem;flex-wrap:wrap}footer p{font-size:.8125rem}.document{max-width:900px;margin:auto;padding:5rem 5vw 8rem}.document h1{font-size:clamp(2.5rem,4vw,4.5rem);max-width:760px}.document .lead{font-size:1.15rem;color:#c8d3df;margin:0 0 2rem}.document section{margin-top:3rem}.document h2{font-size:1.6rem;letter-spacing:-.02em}.document p,.credits{color:#c8d3df}.document p a,.credits a{color:var(--mint);text-decoration:underline;text-underline-offset:3px}.faq{margin-top:3.5rem}details{border-top:1px solid var(--line);padding:1.5rem 0}summary{cursor:pointer;font-size:1.2rem;font-weight:550;line-height:1.5}details p{padding-right:1.5rem}.credits{padding-left:1.2rem;line-height:1.8}.credits li{margin-bottom:1.4rem}.skip{position:absolute;z-index:5;left:1rem;top:-5rem;background:var(--mint);color:#000;padding:1rem}.skip:focus{top:1rem}@media(max-width:800px){header{padding:1.25rem 5vw;gap:1rem;align-items:flex-start}nav{gap:1rem;flex-wrap:wrap;justify-content:flex-end}nav>a{display:none}.languages{border:0;padding:0}.brand span{display:none}.hero{min-height:740px;align-items:flex-start}.hero-image{opacity:.75;object-position:60% 50%}.hero::after{background:linear-gradient(180deg,#030609ee 0%,#03060988 48%,#03060933 73%,#030609 100%)}.hero-copy{padding:4rem 6vw;max-width:620px}.hero h1{font-size:clamp(2.8rem,8vw,4rem)}.intro{font-size:1.05rem;max-width:420px}.section{padding:3.8rem 6vw}.features{grid-template-columns:1fr;gap:1.6rem}.features article{max-width:600px}.features h3{margin-top:.9rem}.films{grid-template-columns:1fr}.gallery{gap:1.5rem .8rem}.gallery figcaption{font-size:.8125rem}.offline{grid-template-columns:1fr;gap:2rem}footer{flex-wrap:wrap;gap:1.3rem;padding:2.5rem 6vw}footer div{width:100%;gap:1rem}.document{padding:3.5rem 6vw 5rem}.document h1{font-size:2.7rem}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* Keep the recorded planet beside the copy, without altering the capture. */
@media(min-width:801px){.hero-image{left:27%;right:auto;width:88%;height:100%;object-fit:contain;object-position:center;opacity:1}}
@media(max-width:800px){.hero{min-height:880px}.hero-image{left:-80%;right:auto;top:420px;width:260%;height:470px;object-fit:contain;opacity:1}.hero::after{background:linear-gradient(180deg,#030609 0%,#030609ee 20%,#03060900 65%,#030609 100%)}}
@media(min-width:801px){.hero-image{left:17%;width:110%}.hero .intro{max-width:min(490px,43vw)}}
@media(max-width:800px){.hero{display:flex;flex-direction:column;min-height:0}.hero-copy{order:1;padding:3rem 6vw 0;width:100%}.hero h1{font-size:clamp(2rem,9vw,2.7rem)}.hero .eyebrow{margin-bottom:1rem}.hero .intro{line-height:1.7;margin-bottom:1.5rem}.hero-image{position:relative;order:2;inset:auto;left:auto;top:auto;width:240%;height:380px;object-fit:contain;align-self:center}.hero::after{background:linear-gradient(0deg,#030609,transparent 22%);pointer-events:none}}

/* Shared app identity; explicit dimensions avoid layout shifts. */
header .brand{display:inline-flex;align-items:center;white-space:nowrap;flex-shrink:0}.brand-icon{display:block;width:2.5rem;height:2.5rem;border-radius:23%;margin-right:.65rem;flex-shrink:0}@media(max-width:380px){header{flex-wrap:wrap}header nav{margin-left:auto}}

/* Keep the localized name readable when navigation wraps. */
html[lang^=zh] header .brand{letter-spacing:0}header .brand span{letter-spacing:0}header nav{margin-left:auto}
/* Language navigation stays compact; every page preserves the selected section. */
.language-menu{position:relative;border:0;padding:0}.language-menu summary{font-size:.875rem;min-height:44px;display:flex;align-items:center;gap:.5rem;border:1px solid var(--line);border-radius:8px;padding:.5rem .8rem;list-style:none;white-space:nowrap}.language-menu summary::-webkit-details-marker{display:none}.language-menu[open] summary{color:var(--mint);border-color:var(--mint)}.language-options{position:absolute;right:0;top:calc(100% + .5rem);width:min(32rem,90vw);max-height:65vh;overflow:auto;display:grid;grid-template-columns:1fr 1fr;gap:.25rem;padding:.8rem;background:#0b131c;border:1px solid #3a4e5e;border-radius:12px;box-shadow:0 16px 48px #000b}.language-options a{display:flex;align-items:center;min-height:44px;padding:.65rem .8rem;border-radius:6px;overflow-wrap:anywhere}.language-options a:hover,.language-options [aria-current]{background:#17302e;color:var(--mint)}.hero-actions{display:flex;gap:1rem;align-items:center;flex-wrap:wrap}.secondary-cta{display:inline-flex;align-items:center;gap:.7rem;min-height:52px;padding:.8rem 1rem;border:1px solid #51616d;border-radius:4px}.version-note{padding:1rem 1.2rem;border-left:3px solid var(--mint);background:#0b151b;color:#c8d3df;font-size:.9375rem;max-width:850px}.language-section{border-top:1px solid var(--line)}.language-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:.75rem;margin-top:2rem}.language-grid a{border:1px solid var(--line);padding:.8rem 1rem;border-radius:8px;min-height:48px;display:flex;align-items:center}.language-grid [aria-current]{border-color:var(--mint);color:var(--mint)}.hero h1,.document h1,h2,h3{overflow-wrap:anywhere}footer div a{min-height:44px;display:flex;align-items:center}header nav{min-width:0}.document .version-note{margin-top:2rem}@media(max-width:500px){.language-options{grid-template-columns:repeat(2,minmax(0,1fr));width:min(21rem,90vw)}.hero-actions{align-items:stretch;gap:.75rem}.hero-actions a{justify-content:center;gap:.8rem}header .brand{font-size:1.4rem}.language-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.language-grid a{overflow-wrap:anywhere;font-size:.9rem}.hero-copy{padding-top:2.4rem}}