:root{--surface:#ffffff;--mix-base:#ffffff;--brand:#3d5afe;--brand-ink:#ffffff;--brand-soft:color-mix(in srgb,var(--brand) 10%,white);--ink-1:#191f28;--ink-2:#4e5968;--ink-3:#8b95a1;--ink-4:#b0b8c1;--line:#e5e8eb;--line-soft:#f2f4f6;--bg:#ffffff;--bg-soft:#f7f8fa;--bubble-them:#f2f4f6;--red:#f04452;--green:#12b886;--shadow-sm:0 1px 2px rgba(0,0,0,0.05);--shadow-md:0 4px 16px rgba(0,20,60,0.08);--shadow-lg:0 18px 50px rgba(0,20,60,0.16);--font:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Segoe UI","Malgun Gothic",system-ui,sans-serif}*{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:var(--font);color:var(--ink-1);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;letter-spacing:-.01em;word-break:keep-all}button,input,textarea{font:inherit;color:inherit;letter-spacing:inherit}button{cursor:pointer}a{color:inherit}.bt-img{position:relative;display:block;width:220px;max-width:100%;padding:0;border:1px solid rgba(0,0,0,.06);border-radius:16px;overflow:hidden;background:var(--line-soft);cursor:zoom-in}.bt-img img{width:100%;height:100%;object-fit:cover;display:block}.bt-img.is-pending img{filter:brightness(.7)}.bt-img-spinner{position:absolute;inset:0;display:grid;place-items:center}.bt-spinner{width:22px;height:22px;border-radius:50%;border:2.5px solid rgba(255,255,255,.35);border-top-color:#fff;animation:bt-spin .8s linear infinite}.bt-spinner.dark{border-color:rgba(0,0,0,.1);border-top-color:var(--ink-3)}@keyframes bt-spin{to{transform:rotate(1turn)}}.bt-lightbox{position:fixed;inset:0;z-index:1000;background:rgba(10,12,16,.86);display:grid;place-items:center;padding:48px 16px;animation:bt-fade .18s ease}.bt-lightbox img{max-width:min(75vw,900px);max-height:72vh;width:auto;height:auto;object-fit:contain;border-radius:12px;box-shadow:0 20px 60px rgba(0,0,0,.4)}.bt-lightbox-close{position:absolute;top:12px;right:12px;width:40px;height:40px;border-radius:50%;border:none;background:rgba(255,255,255,.12);color:#fff;display:grid;place-items:center}.bt-lightbox-close:hover{background:rgba(255,255,255,.22)}.bt-lightbox-actions{position:absolute;bottom:16px;left:50%;transform:translateX(-50%);display:flex;gap:8px}.bt-lightbox-open{color:#fff;font-size:13px;text-decoration:none;white-space:nowrap;padding:9px 16px;border-radius:999px;background:rgba(255,255,255,.14)}.bt-lightbox-open:hover{background:rgba(255,255,255,.24)}.bt-lightbox-open.is-primary{background:#3d5afe;font-weight:700}.bt-lightbox-open.is-primary:hover{background:#2f49d8}@keyframes bt-fade{0%{opacity:0}to{opacity:1}}@keyframes bt-rise{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}.bt-typing{display:inline-flex;gap:4px;padding:13px 14px;background:var(--bubble-them);border-radius:18px}.bt-typing i{width:6px;height:6px;border-radius:50%;background:var(--ink-4);animation:bt-bounce 1.2s ease-in-out infinite}.bt-typing i:nth-child(2){animation-delay:.15s}.bt-typing i:nth-child(3){animation-delay:.3s}@keyframes bt-bounce{0%,60%,to{transform:translateY(0);opacity:.5}30%{transform:translateY(-4px);opacity:1}}.bt-lightbox-msg{position:absolute;bottom:66px;left:50%;transform:translateX(-50%);padding:8px 14px;border-radius:10px;background:rgba(0,0,0,.75);color:#fff;font-size:13px;white-space:nowrap}.c-photo-save{border:none;cursor:pointer}