/* 以协作展开地图作为封面主视觉，保留现有蓝白界面和目录入口。 */
.welcome.map-welcome{padding:25px 32px 0;display:grid;grid-template-columns:minmax(260px,.75fr) minmax(0,1.25fr);gap:0 16px;background:#eaf4fa;border-radius:22px;border-color:#d5e6f1;align-items:center}
.map-welcome .welcome-copy{position:relative;z-index:1;padding:15px 0 22px}
.map-welcome .welcome-label{margin:0;color:#486f8b;font-size:12px;font-weight:550;letter-spacing:.5px}
.map-welcome h1{margin:15px 0 17px;font-size:clamp(30px,2.8vw,43px);line-height:1.38;font-weight:650;letter-spacing:-1px;color:#18354c}
.map-welcome .welcome-description{margin:0;font-size:13px;line-height:1.9;color:#5f7d92}
.welcome-browse{margin-top:24px;background:#246aa6;box-shadow:none;min-height:40px;padding:11px 19px;border-radius:9px}
.map-art{min-width:0;position:relative;align-self:center;padding:4px 0 8px}
.map-art canvas{display:block;width:100%;height:330px;opacity:0;transition:opacity .5s;pointer-events:none}
.map-art.map-ready canvas{opacity:1}
.map-phase{text-align:center;color:#5f7d92;font-size:11px;min-height:17px;margin:0 0 6px}
.welcome-bottom{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;gap:15px;padding:17px 0;border-top:1px solid #cfdfeb}
.map-welcome .stats{gap:24px;margin:0;font-size:11px;color:#5e798e}.map-welcome .stats strong{font-size:16px;color:#234963;margin-right:4px;font-weight:600}
.map-controls{display:flex;gap:19px;align-items:center;flex-wrap:wrap}.map-control{background:transparent;color:#496d89;font-size:11px;padding:5px 0;border-radius:3px;white-space:nowrap}.map-control:hover{color:var(--blue)}.map-control:disabled{opacity:.5}
.map-fallback{display:none;min-height:180px;place-items:center;color:#7ea8c9}.map-failed canvas{display:none}.map-failed .map-fallback{display:grid}
@media(max-width:1150px){.welcome.map-welcome{padding:22px 24px 0;grid-template-columns:minmax(225px,.85fr) minmax(0,1.15fr);gap:0 8px}.map-art canvas{height:300px}.map-welcome h1{font-size:32px}.map-welcome .stats{gap:16px}.map-controls{gap:14px}}
@media(max-width:900px){.welcome.map-welcome{grid-template-columns:1fr;padding:24px 25px 0}.map-welcome .welcome-copy{padding:0}.map-welcome h1{font-size:34px}.map-art{width:100%;max-width:650px;margin:15px auto 0}.map-art canvas{height:290px}.welcome-bottom{margin-top:10px}}
@media(max-width:760px){.welcome.map-welcome{padding:24px 22px 0;border-radius:18px}.map-welcome h1{font-size:30px;margin:13px 0;line-height:1.4}.map-welcome .welcome-label{font-size:11px}.map-welcome .welcome-description{font-size:12px}.welcome-browse{margin-top:19px;font-size:12px;min-height:38px}.map-art{width:calc(100% + 20px);margin:18px -10px 0}.map-art canvas{height:210px}.map-phase{font-size:10px}.welcome-bottom{padding:14px 0;gap:12px;flex-wrap:wrap;justify-content:flex-start}.map-welcome .stats{gap:17px;width:100%;font-size:10px}.map-welcome .stats strong{font-size:15px}.map-controls{gap:23px}.map-control{font-size:11px}}
@media(prefers-reduced-motion:reduce){.map-art canvas{transition:none}}