:root{--bg-start:#081522;--bg-end:#04111b;--panel:#081926b8;--panel-strong:#0a1b2be6;--line:#b1d9ff2e;--text-main:#f7fbff;--text-subtle:#f7fbffb8;--accent:#ffd166;--accent-hover:#ffe096;--accent-disabled:#ffd16657}*{box-sizing:border-box}html,body{width:100%;height:100%;color:var(--text-main);background:radial-gradient(circle at top, #4377a733, transparent 38%), linear-gradient(180deg, var(--bg-start), var(--bg-end));margin:0;font-family:Hiragino Sans,Yu Gothic,sans-serif;overflow:hidden}body{position:fixed;inset:0}button,input,textarea,select{font:inherit}.page-shell{flex-direction:column;gap:20px;width:100vw;height:100dvh;padding:20px 20px 28px;display:flex}.slide-stage{flex:1;justify-content:center;align-items:center;min-height:0;display:flex}.slide-frame{border:1px solid var(--line);background:var(--panel);border-radius:28px;width:min(94vw,1500px);height:min(100dvh - 168px,860px);margin:0;overflow:hidden;box-shadow:0 28px 80px #00000052}.slide-image{object-fit:contain;background:#ffffff0a;width:100%;height:calc(100% - 88px);display:block}.slide-caption{background:#06121cdb;flex-direction:column;justify-content:center;gap:6px;height:88px;padding:18px 24px;display:flex}.slide-caption strong{font-size:1.1rem;font-weight:700}.slide-caption span{color:var(--text-subtle);font-size:.95rem}.slide-panel{text-align:center;background:radial-gradient(circle at top left, #ffd1662e, transparent 28%), radial-gradient(circle at bottom right, #56b3ff2e, transparent 34%), var(--panel-strong);flex-direction:column;justify-content:center;align-items:center;gap:18px;padding:clamp(28px,5vw,56px);display:flex}.slide-panel h1{margin:0;font-size:clamp(2rem,5vw,4.4rem);line-height:1.02}.slide-panel p{max-width:22ch;color:var(--text-subtle);margin:0;font-size:clamp(1rem,2vw,1.3rem)}.slide-eyebrow{letter-spacing:.2em;text-transform:uppercase;color:var(--accent);font-size:.85rem}.control-bar{justify-content:center;align-items:center;gap:16px;display:flex}.nav-button{background:var(--accent);color:#14263c;cursor:pointer;border:0;border-radius:999px;min-width:136px;padding:14px 22px;font-weight:700;transition:transform .16s,background-color .16s,opacity .16s}.nav-button:hover:not(:disabled){background:var(--accent-hover);transform:translateY(-1px)}.nav-button:disabled{cursor:not-allowed;color:#14263c9e;background:var(--accent-disabled)}.slide-status{text-align:center;min-width:88px;color:var(--text-subtle);margin:0;font-weight:600}@media (max-width:720px){.page-shell{gap:14px;padding:14px 14px 22px}.slide-frame{border-radius:22px;width:100%;height:min(100dvh - 154px,720px)}.slide-image{height:calc(100% - 100px)}.slide-caption{height:100px;padding:16px 18px}.control-bar{gap:10px}.nav-button{min-width:104px;padding:12px 14px}}