.trial-topbar{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px max(5vw,24px);border-bottom:1px solid #dcded2}
.trial-topbar nav{display:flex;align-items:center;gap:20px;font-size:13px;font-weight:700}
.trial-main{max-width:1400px;margin:auto;padding:34px max(5vw,24px) 64px}
.trial-intro{margin-bottom:24px}.trial-intro h1{font-size:clamp(28px,3vw,40px);letter-spacing:-.05em;margin:0 0 10px}.trial-intro p{color:#5c6558;font-size:14px;line-height:1.8;margin:0}
.scene{position:relative;isolation:isolate;overflow:hidden;height:clamp(350px,57vh,640px);border:1px solid #c6caba;border-radius:18px;background:#dce0ce;outline-offset:4px}
.scenery{position:absolute;inset:0;overflow:hidden;background:linear-gradient(165deg,#c5d5cd,#e6e2c9 65%,#d2c5a7)}
.scenery:after{content:'';position:absolute;inset:65% -25% -55%;background:#bac7ae;border-radius:50% 50% 0 0;transform:rotate(-7deg)}
.scene[data-background=light]{background:#f2eee6}.scene[data-background=dark]{background:#292e31;border-color:#40484d}.scene:not([data-background=meadow]) .scenery{display:none}
.trial-stage{position:absolute;inset:0;pointer-events:none}
.scene-controls{position:relative;z-index:1;display:flex;align-items:start;flex-wrap:wrap;justify-content:space-between;gap:16px;padding:20px;color:#33453b;transition:opacity .2s}
.scene-caption{min-width:0;flex:1 1 170px;line-height:1.5}.scene-caption p{margin:1px 0 4px;font-size:14px;font-weight:800}.scene-caption span{font-size:12px}.scene[data-background=dark] .scene-controls{color:#f2eee6}
.scene-buttons{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.scene button{font:700 12px 'DM Sans','Noto Sans JP',sans-serif;min-height:44px;padding:10px 16px;border:1px solid #ffffff85;border-radius:10px;background:#fffdf5;color:#344a39;cursor:pointer;white-space:nowrap}
.scene button:hover{background:#e8ecdf}.scene .fullscreen-button{background:#344a39;color:#fff;border-color:#344a39}.scene .fullscreen-button:hover{background:#49634c}
.scene button:focus-visible,.trial-options select:focus-visible{outline:3px solid #396392;outline-offset:3px}.scene button:disabled,.trial-options select:disabled{opacity:.55;cursor:wait}
.screen-notice{width:100%;margin:0;font-size:12px;line-height:1.7}
.fullscreen-hint{display:none;position:relative;z-index:1;margin:0 20px;color:#33453b;font-size:12px;text-align:right;transition:opacity .2s;pointer-events:none}.scene[data-background=dark] .fullscreen-hint{color:#f2eee6}
.trial-options{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:16px;padding:24px 0 12px}.trial-options label{display:grid;gap:8px;min-width:0}.trial-options label>span{font-size:12px;font-weight:700;color:#5c6558}.trial-options select{min-width:0;width:100%;min-height:46px;padding:10px 30px 10px 12px;font:500 13px 'DM Sans','Noto Sans JP',sans-serif;background:#fffdf8;color:#302f2c;border:1px solid #d8ded1;border-radius:8px}
.trial-note{margin:8px 0 30px;color:#5c6558;font-size:12px;line-height:1.8}.load-error{color:#963f31;font-size:14px}
.trial-next{display:flex;align-items:center;justify-content:space-between;gap:24px;border-top:1px solid #dcded2;padding-top:28px}.trial-next h2{font-size:22px;letter-spacing:-.035em;margin:0 0 9px}.trial-next p{max-width:650px;font-size:13px;line-height:1.8;color:#5c6558;margin:0}.trial-next-links{flex:none;display:grid;justify-items:center;gap:12px}.trial-obs-link{font-size:12px;text-decoration:underline;text-underline-offset:4px;color:#49634c}
.scene.is-expanded{position:fixed;inset:0;z-index:1000;width:100%;height:100dvh;border:0;border-radius:0}.scene:fullscreen{width:100%;height:100%;border:0;border-radius:0}.scene.is-immersive .scene-controls{padding-top:max(20px,env(safe-area-inset-top));padding-left:max(20px,env(safe-area-inset-left));padding-right:max(20px,env(safe-area-inset-right))}.scene.is-immersive .fullscreen-hint{display:block}.scene.controls-hidden{cursor:none}.scene.controls-hidden .scene-controls,.scene.controls-hidden .fullscreen-hint{opacity:0;pointer-events:none}body.trial-expanded{overflow:hidden}
@media(max-width:850px){.trial-options{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:650px){.trial-topbar{padding:12px 20px;min-height:64px;gap:10px}.trial-topbar nav{gap:10px}.trial-topbar #back-link{display:none}.trial-topbar .brand{font-size:13px}.trial-main{padding:24px 20px 40px}.trial-intro{margin-bottom:18px}.trial-intro p{font-size:13px}.scene{height:52svh;min-height:350px;border-radius:14px}.scene-controls{padding:14px;gap:12px}.scene-caption{flex-basis:100%}.scene-buttons{width:100%;gap:6px}.scene button{padding:8px 10px;font-size:11px;flex:1}.scene .fullscreen-button{flex:1.3}.trial-options{gap:14px 10px;padding-top:20px}.trial-options select{padding-left:9px;font-size:12px}.trial-next{display:block;padding-top:24px}.trial-next-links{justify-items:start;margin-top:20px}.trial-next h2{font-size:21px}.fullscreen-hint{line-height:1.8}}
@media(prefers-reduced-motion:reduce){.scene-controls,.fullscreen-hint{transition:none}}

.trial-options select:disabled{cursor:default}