:root{--bg: #f7f5ee;--surface: #fcfbf6;--surface-strong: #ffffff;--ink: #22231f;--muted: #6f746c;--line: #d8d4c8;--line-strong: #c5c0b4;--jade: #2f756e;--jade-deep: #1f5d57;--cinnabar: #ad4e43;--brass: #b48535;--lapis: #386f93;--shadow: 0 12px 32px rgb(49 46 38 / .12);color-scheme:light;font-family:Inter,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans CJK SC,system-ui,sans-serif}*{box-sizing:border-box}html,body{min-height:100%;margin:0}body{background:var(--bg);color:var(--ink);overflow-x:hidden}button,select,input{font:inherit}button,a{color:inherit}@keyframes route-flow{to{stroke-dashoffset:-32}}@keyframes marker-ripple{0%{opacity:.58;transform:translate(-50%,-50%) scale(.72)}70%,to{opacity:0;transform:translate(-50%,-50%) scale(2.65)}}@keyframes marker-breathe{0%,to{transform:scale(1)}50%{transform:scale(1.08)}}@keyframes map-sweep{0%{opacity:0;transform:translate(-45%)}18%,64%{opacity:1}to{opacity:0;transform:translate(45%)}}@keyframes detail-enter{0%{opacity:.58;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes image-reveal{0%{opacity:0;filter:saturate(.72) contrast(.9);transform:scale(1.018)}to{opacity:1;filter:saturate(1) contrast(1);transform:scale(1)}}@keyframes year-pop{0%{opacity:.3;transform:translateY(8px) scale(.94)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes row-rise{0%{opacity:.42;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes guide-flare{0%,to{box-shadow:0 0 #2f756e00}48%{box-shadow:0 0 18px #2f756e6b}}.app-shell{height:100vh;display:grid;grid-template-rows:52px minmax(500px,1fr) auto;overflow-x:hidden;overflow-y:auto}.topbar{height:52px;display:grid;grid-template-columns:245px 1fr auto;align-items:center;gap:16px;padding:0 16px;background:#fcfbf6f5;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-size:22px;font-weight:750;letter-spacing:0}.brand-mark{width:29px;height:29px;display:grid;place-items:center}.main-nav{display:flex;align-items:center;justify-content:center;gap:34px;min-width:0;height:100%}.main-nav a{height:100%;display:inline-flex;align-items:center;border-bottom:2px solid transparent;text-decoration:none;font-size:15px;color:#3d413b;white-space:nowrap}.main-nav 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var(--line);padding:16px}.right-panel{border-left:1px solid var(--line);padding:14px 16px 20px}.panel-section{padding:0 0 18px;margin:0 0 16px;border-bottom:1px solid var(--line)}.panel-section h2,.detail-section h2{margin:0 0 10px;font-size:15px;font-weight:700}.section-head{display:flex;align-items:center;justify-content:space-between;gap:8px}.text-button{color:var(--jade-deep);font-size:13px}.mode-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--line);border-radius:6px;overflow:hidden}.mode-button{min-height:67px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;border-right:1px solid var(--line);color:#41443f;background:#ffffff6b;font-size:14px}.mode-button:last-child{border-right:0}.mode-button.is-active{color:#fff;background:var(--jade)}.period-list{border:1px solid var(--line);border-radius:6px;overflow:hidden}.period-row{width:100%;height:40px;display:grid;grid-template-columns:22px 1fr 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100%);mix-blend-mode:soft-light}body.timeline-playing .map-stage:before{animation:map-sweep 4.4s ease-in-out infinite}#map{position:absolute;inset:0;z-index:1}.leaflet-container{font-family:inherit;background:#d8e3df}.leaflet-tile-pane{filter:saturate(.78) sepia(.12) contrast(.94)}.map-text-label{width:auto;height:auto;border:0;background:transparent;color:#30494dad;font-family:Songti SC,"Noto Serif CJK SC",Georgia,serif;font-size:15px;font-weight:700;letter-spacing:0;text-align:center;text-shadow:0 1px 0 rgba(255,255,255,.78),0 -1px 0 rgba(255,255,255,.78),1px 0 0 rgba(255,255,255,.78),-1px 0 0 rgba(255,255,255,.78);pointer-events:none}.map-toolbar{position:absolute;top:16px;left:16px;z-index:5;display:flex;gap:10px}.soft-button{min-height:36px;display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:0 13px;border:1px solid var(--line);border-radius:7px;background:#fcfbf6eb;box-shadow:0 4px 14px #23282314;color:#38403b;white-space:nowrap;transition:background .16s 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var(--line);border-radius:8px;background:#fcfbf6e6;box-shadow:var(--shadow)}.legend-item{display:inline-flex;align-items:center;gap:6px;color:#3f433d;font-size:12px;opacity:.48}.legend-item.is-active{opacity:1}.legend-dot{width:10px;height:10px;border-radius:50%;background:var(--dot)}.mini-map{position:absolute;right:18px;bottom:18px;z-index:5;width:206px;height:118px;border:2px solid rgba(255,255,255,.78);border-radius:8px;background:linear-gradient(90deg,transparent 0 44%,rgb(255 255 255 / .45) 44% 46%,transparent 46%),linear-gradient(180deg,transparent 0 38%,rgb(255 255 255 / .45) 38% 40%,transparent 40%),#d7dfd1;box-shadow:var(--shadow)}.mini-map:before{content:"";position:absolute;inset:16px 22px;border:2px solid rgba(255,255,255,.88)}.mini-map-frame{position:absolute;left:56px;top:31px;width:78px;height:43px;border:2px solid #fff;background:#ffffff1f}.event-marker-wrap{background:transparent}.event-marker{display:block;position:relative;width:16px;height:16px;border:3px solid #fff;border-radius:50%;background:var(--pin);box-shadow:0 3px 10px #00000047;transition:opacity .18s ease,transform .18s ease,box-shadow .18s ease}.event-marker:after{content:"";position:absolute;left:50%;top:50%;width:100%;height:100%;border-radius:50%;background:color-mix(in srgb,var(--pin) 52%,transparent);transform:translate(-50%,-50%) scale(.7);opacity:0;z-index:-1}.event-marker.is-active{width:22px;height:22px;border-width:4px;box-shadow:0 0 0 4px #ffffff6b,0 4px 16px #00000047;animation:marker-breathe 2.2s ease-in-out infinite}.event-marker.is-active:after{animation:marker-ripple 1.9s ease-out infinite}.animated-route{animation:route-flow 1.45s linear infinite;filter:drop-shadow(0 2px 5px rgb(31 93 87 / .35))}.detail-nav{height:38px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);margin-bottom:14px}.back-button{display:inline-flex;align-items:center;gap:4px;color:#555b54}.tag-line{display:flex;align-items:center;justify-content:space-between;gap:12px}.event-tag{display:inline-flex;align-items:center;min-height:25px;padding:0 9px;border:1px solid #aac8bf;border-radius:5px;background:#e8f1ec;color:var(--jade-deep);font-size:13px;font-weight:650}.detail-card h1{margin:9px 0 10px;font-family:Songti SC,"Noto Serif CJK SC",Georgia,serif;font-size:24px;line-height:1.2;font-weight:700;letter-spacing:0}.detail-card{transform-origin:top center}.detail-card.is-entering{animation:detail-enter .42s cubic-bezier(.2,.7,.2,1)}.event-image{width:100%;aspect-ratio:16 / 8.7;object-fit:cover;border-radius:4px;border:1px solid var(--line);background:#e8e1d3;display:block;transform-origin:center}.event-image.is-revealing{animation:image-reveal .68s cubic-bezier(.2,.7,.2,1)}.fact-list,.provenance dl{display:grid;gap:8px;margin:12px 0}.fact-list div,.provenance dl 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ease-out}.timeline-guide:before,.timeline-guide:after{content:"";position:absolute;left:50%;width:13px;height:13px;border-radius:50%;background:var(--jade);transform:translate(-50%)}.timeline-guide:before{top:-7px}.timeline-guide:after{bottom:-7px}#timeline-body{display:grid;gap:6px}#timeline-body.is-refreshing .timeline-row{animation:row-rise .36s ease-out both}#timeline-body.is-refreshing .timeline-row:nth-child(2){animation-delay:60ms}.timeline-row{display:grid;grid-template-columns:118px 1fr;min-height:70px}.timeline-row-label{display:grid;align-content:center;gap:4px;border-right:1px solid var(--line);color:#3b413c}.timeline-row-label strong{font-size:15px}.timeline-row-label span{color:var(--muted);font-size:12px}.timeline-track{position:relative;min-width:0;margin-left:0;border:1px solid var(--line);border-left:0;border-radius:0 8px 8px 0;background:linear-gradient(90deg,rgb(47 117 110 / .1) 37% 43%,transparent 43%),#ffffff6b;transition:background .18s ease,border-color .18s ease,box-shadow .18s ease}.timeline-event{position:absolute;transform:translate(-9px);min-width:94px;max-width:120px;border:0;background:transparent;text-align:left;color:#424740;cursor:pointer;transition:color .16s ease,transform .16s ease,opacity .16s ease}.timeline-event:hover{transform:translate(-9px) translateY(-2px);color:var(--jade-deep)}.timeline-dot{width:12px;height:12px;display:inline-block;border:2px solid #fff;border-radius:50%;background:var(--dot);vertical-align:top;box-shadow:0 1px 4px #0003}.timeline-label{display:inline-block;margin-left:4px;font-size:11px;line-height:1.3;vertical-align:top}.timeline-event.is-active .timeline-label{font-weight:700;color:var(--jade-deep)}.timeline-event.is-active .timeline-dot{box-shadow:0 0 0 3px #ffffffbd,0 0 14px #2f756e59}.settings-panel{position:absolute;right:28px;bottom:42px;width:282px;display:none;padding:12px 14px;border:1px solid var(--line);border-radius:8px;background:var(--surface-strong);box-shadow:var(--shadow);color:#4e554e;font-size:13px;line-height:1.6;z-index:7}.settings-panel.is-open{display:block}.settings-panel p{margin:0}.timeline-caption{grid-column:1 / 4;align-self:end;justify-self:center;color:var(--muted);font-size:13px;margin:0}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.01ms!important}}@media(max-width:1180px){.topbar{grid-template-columns:220px 1fr}.top-actions{display:none}.workspace{grid-template-columns:230px minmax(420px,1fr)}.right-panel{grid-column:1 / 3;border-left:0;border-top:1px solid var(--line);max-height:380px}.detail-card{display:grid;grid-template-columns:280px 1fr;gap:18px}.tag-line,.detail-card h1{grid-column:1 / 3}.timeline-panel{grid-template-columns:170px 1fr 250px;padding-left:18px;padding-right:18px}}@media(max-width:760px){body{overflow:auto}.app-shell{height:auto;overflow:visible;grid-template-rows:auto auto auto}.topbar{position:relative;grid-template-columns:1fr;height:auto;padding:12px 14px 0}.main-nav{justify-content:flex-start;overflow-x:auto;gap:22px;height:44px}.workspace{grid-template-columns:1fr}.map-stage{order:1;min-height:360px}.right-panel{order:2;grid-column:auto}.left-panel{order:3}.left-panel,.right-panel{border:0;max-height:none}.map-legend,.mini-map{display:none}.detail-card{display:block}.timeline-panel{display:block;padding:14px}.playback,.timeline-actions{margin-bottom:12px}.timeline-canvas{padding-left:0;overflow-x:auto}.timeline-ticks,#timeline-body{min-width:720px}.timeline-guide-wrap{left:118px}}