:root{--brand:#CA4B35;--brand-strong:#B43D29;--sand:#FFF0E8;--accent:#087E82;--ink:#263D47;--muted:#566A73;--line:#E3ECEB;--canvas:#FFFDFA;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--canvas);line-height:1.6;font-synthesis:none}
*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}a:focus-visible,select:focus-visible{outline:3px solid var(--accent);outline-offset:4px}h1,h2,p{margin:0}[hidden]{display:none!important}
.skip{position:fixed;top:-80px;left:16px;z-index:5;padding:12px 20px;background:var(--ink);color:white;border-radius:10px}.skip:focus{top:12px}
.site-header{position:sticky;top:0;z-index:10;background:rgb(255 253 250 / 97%);border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;max-width:1240px;margin:auto;padding:20px 40px}
.brand{display:flex;align-items:center;gap:12px;font-size:29px;font-weight:750;line-height:1;letter-spacing:-.8px}.brand img{flex:none}.brand small{display:block;font-size:9px;letter-spacing:3px;font-weight:500;margin-top:7px;color:var(--muted)}
nav{display:flex;align-items:center;gap:24px;font-size:13px;font-weight:600}.nav-chat{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:8px 18px;background:var(--brand);border-radius:11px;color:white}.nav-chat:hover{background:var(--brand-strong)}
.site-options{max-width:1160px;margin:auto;padding:0 40px 20px;display:flex;align-items:center;flex-wrap:wrap;gap:12px 28px;border-bottom:1px solid var(--line)}.site-option{display:flex;align-items:center;gap:10px;min-width:0}.site-option label,.poster-filter label{font-size:12px;font-weight:650}.site-options>p{font-size:11px;color:var(--muted);margin-left:auto;max-width:310px}
select{font:inherit;font-size:13px;line-height:1.4;min-height:42px;max-width:100%;padding:8px 32px 8px 12px;border:1px solid var(--line);border-radius:10px;background:white;color:var(--ink)}
main{max-width:1160px;margin:auto;padding:0 40px 60px}.intro{padding:48px 0 30px}.eyebrow{font-size:12px;color:var(--accent);font-weight:700;letter-spacing:1.3px;margin-bottom:20px}
h1{font-size:clamp(36px,4.4vw,58px);line-height:1.25;letter-spacing:-1.5px;font-weight:700;overflow-wrap:break-word}h1>span{display:block}.intro>p:not(.eyebrow){font-size:16px;color:var(--muted);max-width:700px;line-height:1.85;margin-top:24px}
.scene-note{max-width:800px;padding:20px 22px;border-radius:14px;background:#EBF7F1;margin-top:24px}.scene-chip{display:inline-block;font-size:11px;font-weight:700;color:var(--accent);margin-bottom:6px}.scene-note p{font-size:13px;line-height:1.8;color:var(--muted)}
.intro-actions{display:flex;align-items:center;flex-wrap:wrap;gap:16px 28px;margin-top:23px}.qr-link,.guide-link{display:inline-flex;align-items:center;font-size:13px;color:var(--brand);font-weight:650;border-bottom:1px solid var(--line);padding-bottom:7px}.guide-link{color:var(--accent)}.intro>p.qr-note{font-size:12px;margin-top:15px;max-width:800px;line-height:1.8}
.poster-options{display:flex;align-items:center;flex-wrap:wrap;gap:12px 22px;margin:0 0 22px;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.poster-filter{display:flex;align-items:center;gap:12px;min-width:0}.poster-options>p{font-size:11px;line-height:1.7;color:var(--muted);max-width:430px}.poster-options>span{margin-left:auto;font-size:11px;color:var(--muted)}
.gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:start}.gallery article{min-width:0;background:white;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:0 8px 30px #263D4705}.image-link{display:flex;width:100%;align-items:center;justify-content:center;background:var(--sand);overflow:hidden}.image-link img{display:block;width:100%;height:auto}
.card-copy{padding:20px;display:flex;align-items:flex-start;flex-direction:column;gap:16px}.card-copy>div{min-width:0}.card-copy h2{font-size:18px;font-weight:650;line-height:1.4;overflow-wrap:break-word}.card-copy p{font-size:11px;color:var(--muted);margin-top:5px}
.download{display:inline-flex;align-items:center;justify-content:center;min-height:40px;font-size:12px;color:var(--brand);font-weight:650;padding:8px 14px;border:1px solid var(--line);border-radius:9px;flex:none}.download:hover{background:var(--sand);color:var(--brand-strong)}.wide-card{grid-column:1/-1}.wide-card .card-copy{flex-direction:row;justify-content:space-between;align-items:center}
.help{margin-top:48px;border-radius:20px;background:var(--sand);padding:32px}.help h2{font-size:25px;line-height:1.5}.help p{font-size:14px;max-width:750px;color:var(--muted);margin-top:12px;line-height:1.9}.help>div{display:flex;flex-wrap:wrap;gap:25px;margin-top:20px}.help a{font-size:13px;font-weight:650;color:var(--brand-strong);padding:6px 0}
footer{display:flex;justify-content:space-between;flex-wrap:wrap;gap:20px;max-width:1160px;margin:auto;padding:0 40px 28px;font-size:11px;color:var(--muted)}footer a{color:var(--brand)}
@media(max-width:850px){.gallery{grid-template-columns:repeat(2,minmax(0,1fr))}.intro{padding-top:36px}.card-copy{padding:18px}.site-options>p{width:100%;max-width:none;margin-left:0}.poster-options>span{margin-left:0}}
@media(max-width:580px){.header-inner{padding:19px 20px;gap:14px;flex-wrap:wrap}.brand{font-size:25px;gap:9px}.brand img{width:36px;height:36px}.brand small{font-size:8px;letter-spacing:2px;margin-top:5px}nav{gap:12px;font-size:11px;flex-wrap:wrap;justify-content:flex-end}nav a{min-height:36px;display:inline-flex;align-items:center}.nav-chat{min-height:36px;padding:7px 11px;border-radius:9px}.site-options{padding:0 20px 16px;gap:12px 20px}.site-option{flex-direction:column;align-items:flex-start;gap:5px;flex:1;min-width:105px}.site-option label,.poster-filter label{font-size:11px}.site-option select{width:100%;font-size:12px}.site-options>p{font-size:10px;line-height:1.7}main{padding:0 20px 35px}.intro{padding:32px 0 26px}.eyebrow{font-size:10px;letter-spacing:.7px;margin-bottom:17px}h1{font-size:37px;letter-spacing:-1px}.intro>p:not(.eyebrow){font-size:13px;margin-top:20px}.scene-note{padding:17px 18px;margin-top:18px}.scene-chip{font-size:10px}.scene-note p{font-size:12px}.intro-actions{gap:15px 22px;margin-top:20px}.qr-link,.guide-link{font-size:12px}.intro>p.qr-note{font-size:11px;margin-top:13px}.poster-options{gap:12px;margin-bottom:20px;padding:17px 0}.poster-options>p{width:100%;font-size:10px}.poster-options>span{font-size:10px}.poster-filter{gap:12px}.poster-filter select{font-size:12px;min-height:40px}.gallery{grid-template-columns:1fr;gap:22px}.wide-card{grid-column:auto}.gallery article{border-radius:16px}.card-copy,.wide-card .card-copy{flex-direction:row;justify-content:space-between;align-items:center;padding:19px 17px;gap:12px}.card-copy h2{font-size:16px}.card-copy p{font-size:10px}.download{font-size:11px;white-space:nowrap;padding:8px 11px;min-height:38px}.help{padding:24px 21px;margin-top:30px;border-radius:16px}.help h2{font-size:21px}.help p{font-size:12px}.help>div{gap:20px;margin-top:16px}.help a{font-size:12px}footer{padding:0 20px 24px;font-size:10px}}
@media(max-width:359px){.header-inner{padding-left:16px;padding-right:16px}.site-options,main{padding-left:16px;padding-right:16px}.brand{font-size:22px}.brand img{width:32px;height:32px}nav{gap:9px;font-size:10px}.nav-chat{padding:7px 9px}h1{font-size:33px}.card-copy,.wide-card .card-copy{padding-left:14px;padding-right:14px}.card-copy h2{font-size:15px}.download{padding:8px 9px}}