.experience-intro{background:#0a1211;backdrop-filter:none;overflow:auto;padding:32px;box-sizing:border-box}
.experience-intro::before{content:'';position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:96px 96px;opacity:.2;pointer-events:none}
.experience-card{position:relative;width:min(1120px,100%);padding:40px;border:1px solid var(--line);background:#0d1917;box-shadow:none!important;border-radius:4px;box-sizing:border-box}
.entrance-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:40px}
.entrance-brand{display:flex;align-items:center;gap:12px;font:500 13px var(--sans-cn);letter-spacing:.08em}
.entrance-brand img{width:40px;height:40px}.entrance-controls{display:flex;gap:8px}
.entrance-controls button{border:1px solid var(--line);background:transparent;color:var(--ink);border-radius:4px;padding:8px 12px;white-space:nowrap;cursor:pointer;font:13px var(--sans-cn)}
.entrance-story{display:grid;grid-template-columns:1.55fr 1fr;gap:24px;align-items:center}
.experience-card h2{font-size:clamp(24px,3.2vw,44px);white-space:normal;letter-spacing:-.025em;margin:16px 0;line-height:1.25}
.entrance-copy>p{font:15px/1.8 var(--sans-cn);color:var(--muted);max-width:600px;margin:0}
.entrance-world{width:100%;max-height:280px;color:var(--amber)}.entrance-world circle,.entrance-world path{vector-effect:non-scaling-stroke}
.entrance-world text{fill:var(--muted);font:11px var(--mono);letter-spacing:.1em}
.mode-cards{gap:12px;background:transparent;border:0;margin-top:32px}.mode-card{padding:24px;background:transparent;border:1px solid var(--line);border-radius:4px;position:relative;display:flex;flex-direction:column;min-height:200px;transition:background 150ms,border-color 150ms}
.mode-card:hover,.mode-card:focus-visible{background:#172620;border-color:var(--amber);outline:none}.mode-card[data-mode=brief]{border-color:var(--amber)}
.mode-card .mode-meta{display:flex;justify-content:space-between;align-items:center;font:11px var(--mono);color:var(--amber);margin-bottom:20px}
.mode-card b{font:600 18px var(--sans-cn);margin-bottom:12px}.mode-card span{font:14px/1.65 var(--sans-cn)}
.mode-card .mode-action{margin-top:auto;padding-top:20px;color:var(--ink);font:500 13px var(--sans-cn)}
.entrance-foot{margin:24px 0 0;font:12px var(--sans-cn);color:var(--muted)}
html[data-theme=light] .experience-intro{background:#e6eeeb}html[data-theme=light] .experience-card{background:#f3f6f3}
html[data-theme=light] .mode-card{background:transparent}html[data-theme=light] .mode-card:hover{background:#e8eeE8}
@media(max-width:700px){.experience-intro{padding:16px;display:block}.experience-card{padding:24px;margin:16px auto}.entrance-top{margin-bottom:24px}.entrance-brand{font-size:11px;letter-spacing:0}.entrance-brand img{width:28px;height:28px}.entrance-controls button{padding:8px;font-size:12px}.entrance-story{grid-template-columns:1fr}.entrance-world{display:none}.mode-cards{grid-template-columns:1fr}.mode-card{min-height:0;padding:20px}.mode-card .mode-meta{margin-bottom:12px}.mode-card .mode-action{padding-top:12px}}
@media(prefers-reduced-motion:reduce){.experience-intro,.mode-card{transition:none}}