.preview-mode-switch{position:absolute;z-index:12;right:24px;top:84px;display:flex;padding:3px;border:1px solid #d5d5d0;border-radius:999px;background:rgba(255,255,255,.94);box-shadow:0 5px 16px rgba(0,0,0,.08)}
.preview-mode-switch button{min-width:42px;height:28px;padding:0 10px;border:0;border-radius:999px;background:transparent;color:#555;font:800 10px/1 "Noto Sans JP",sans-serif;cursor:pointer}
.preview-mode-switch button.active{background:#171717;color:#dfef0f}
.three-preview{position:absolute;inset:0;z-index:3;overflow:hidden;background:radial-gradient(circle at 50% 40%,#fff 0,#f4f4f4 72%)}
.three-preview canvas{display:block;width:100%;height:100%;touch-action:none;cursor:grab}
.three-preview canvas:active{cursor:grabbing}
.three-preview-loading{position:absolute;z-index:2;inset:0;display:grid;place-items:center;color:#555;font-size:12px;background:#f7f7f5}
.three-preview-loading[hidden]{display:none}
.three-preview-help{position:absolute;z-index:2;left:50%;bottom:20px;transform:translateX(-50%);padding:7px 12px;border-radius:999px;background:rgba(23,23,23,.82);color:#fff;font-size:9px;letter-spacing:.04em;pointer-events:none;white-space:nowrap}
.three-preview-credit{position:absolute;z-index:2;right:10px;bottom:8px;color:#666;font-size:7px;text-decoration:none;opacity:.72}
.three-preview-close{position:absolute;z-index:4;top:16px;right:16px;width:42px;height:42px;padding:0;border:1px solid rgba(255,255,255,.48);border-radius:50%;background:rgba(23,23,23,.9);color:#fff;font:400 28px/38px Arial,sans-serif;cursor:pointer;box-shadow:0 8px 22px rgba(0,0,0,.18)}
.three-preview-close:hover,.three-preview-close:focus-visible{background:#dfef0f;color:#171717;outline:3px solid rgba(223,239,15,.3);outline-offset:2px}
.three-preview-backdrop{position:fixed;inset:0;z-index:9998;background:rgba(18,18,18,.46);backdrop-filter:blur(9px);-webkit-backdrop-filter:blur(9px)}
body.preview-3d-modal{overflow:hidden;overscroll-behavior:none}
body.preview-3d-modal .three-preview{position:fixed;z-index:9999;inset:50% auto auto 50%;width:min(720px,calc(100vw - 48px));height:min(760px,calc(100dvh - 48px));transform:translate(-50%,-50%);border:1px solid rgba(255,255,255,.75);border-radius:28px;box-shadow:0 30px 90px rgba(0,0,0,.34)}
.preview-panel.preview-3d .preview-viewport{visibility:hidden}
.preview-panel.preview-3d .preview-zoom{visibility:hidden}
.preview-panel.preview-3d .three-preview{display:block}
@media(min-width:901px){.preview-mode-switch{top:88px}.three-preview{bottom:0}}
@media(max-width:900px){.preview-mode-switch{right:12px;top:154px}.three-preview{position:absolute;top:0;right:0;bottom:0;left:0}.preview-panel.preview-3d .three-preview{top:154px;bottom:auto;height:calc(var(--mobile-preview-basis,58vh) - 154px);min-height:280px}.three-preview-help{bottom:20px}.three-preview-credit{bottom:6px}body.preview-3d-modal .three-preview{inset:50% auto auto 50%;width:calc(100vw - 20px);height:calc(100dvh - 28px);min-height:0;border-radius:20px}.three-preview-close{top:12px;right:12px;width:40px;height:40px}}