:root{--paper:#f5f2eb;--ink:#292d29;--muted:#85877c;--green:#50634c;--pale:#e8ecdf;--line:#deded3;--rust:#b36345;--sea:#e3e7e0;--serif:'Noto Serif SC','Songti SC',serif;--sans:'Noto Sans SC','PingFang SC',sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:14px}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit;border:0;background:none}button:disabled{opacity:.5;cursor:wait}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--rust);outline-offset:4px}button:hover{color:var(--green)}svg.lucide{width:18px;height:18px;stroke-width:1.6;flex-shrink:0}button{display:inline-flex;align-items:center;justify-content:center;gap:8px}button[hidden],[hidden]{display:none!important}.masthead{height:88px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;margin:0 4.4%;gap:20px}.brand{display:flex;align-items:center;gap:11px;font-family:var(--serif);font-size:23px;font-weight:600;letter-spacing:2px}.brand small{display:block;font:9px Georgia,serif;letter-spacing:3.7px;margin-top:5px;color:var(--muted)}.brand-icon{display:grid;place-items:center;background:var(--green);color:#fff;width:43px;height:49px;border-radius:21px 21px 5px 5px}.brand-icon svg{width:28px;height:28px;stroke-width:1.2}.masthead nav{display:flex;height:100%;gap:36px;margin-right:80px}.masthead nav button{position:relative;font-size:13px;color:#74766e}.masthead nav .nav-active{color:var(--green);font-weight:600}.nav-active:after{content:'';height:2px;background:var(--green);position:absolute;bottom:-1px;left:0;right:0}#saved-count{font-size:10px;background:#e9e7df;padding:2px 5px;border-radius:3px}.text-button{color:#777b70;font-size:12px;padding:7px 0}.text-button svg{width:15px;height:15px}main{max-width:1600px;margin:auto;padding:0 4.4%}.intro{display:grid;grid-template-columns:1.04fr 1fr;gap:6%;align-items:center;padding:49px 0 43px}.eyebrow{font:10px Georgia,serif;letter-spacing:2px;color:var(--green);margin:0 0 15px;display:flex;align-items:center;gap:8px}.eyebrow>span{height:5px;width:5px;border-radius:50%;background:var(--green)}h1{font:500 clamp(27px,2.65vw,42px)/1.5 var(--serif);margin:0 0 13px;letter-spacing:2px}h1 em{font-style:normal;color:var(--green)}.intro-text{font-size:12px;line-height:1.8;color:#85857a;margin:0}#search-form{display:flex;align-items:center;gap:12px;border:1px solid #c3c8b8;padding:7px 7px 7px 17px;background:#fbfaf7;border-radius:6px;box-shadow:0 5px 20px #31382a05}.search-area{padding-top:22px}#search-form>svg{color:#8b9182}#keyword{width:100%;min-width:0;border:0;outline:none;background:transparent;font-size:14px;height:40px;color:var(--ink)}.primary{background:var(--green);color:white;white-space:nowrap;border-radius:4px;padding:15px 17px;font-size:12px}.primary:hover{background:#3e513a;color:#fff}.suggestions{display:flex;gap:14px;align-items:center;margin-top:12px;font-size:11px;color:var(--muted);flex-wrap:wrap}.suggestions button{padding:0;color:#6b7365;font-size:11px}.suggestions button:hover{text-decoration:underline}.suggestions svg{width:11px;height:11px}.live-label{margin-left:auto;font-size:10px;color:#96998c}.atlas{background:#faf9f5;border:1px solid var(--line);border-radius:9px;overflow:hidden}.atlas-heading{padding:26px 29px 24px;display:flex;justify-content:space-between;gap:25px}.atlas-heading .eyebrow{margin-bottom:9px;font-size:9px;letter-spacing:2px}.title-line{display:flex;align-items:center;gap:15px}h2{font:600 27px var(--serif);margin:0}.edition{font-size:10px;background:#e9eddf;color:var(--green);padding:4px 8px;border-radius:3px}.atlas-heading p:last-child{color:#898b7f;font-size:11px;margin:12px 0 0;line-height:1.8;max-width:740px}.topic-actions{display:flex;align-items:center;gap:32px}.metrics{display:flex;gap:26px;white-space:nowrap}.metrics span{font-size:10px;color:var(--muted);display:flex;flex-direction:column;gap:7px}.metrics strong{font:25px Georgia,serif;color:var(--ink)}.outline-button{padding:10px 12px;border:1px solid var(--line);border-radius:4px;font-size:11px;white-space:nowrap;background:#faf9f5}.outline-button svg{width:14px;height:14px}.toolbar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:11px 27px;gap:12px}.filters{display:flex;gap:10px;flex-wrap:wrap}.filters button{font-size:11px;padding:8px 12px;color:#828679;border-radius:4px;white-space:nowrap}.filters button.selected{background:var(--green);color:white}.filters button span:not(.dot){font:11px Georgia,serif;opacity:.7;margin-left:3px}.dot{width:6px;height:6px;border-radius:50%;display:inline-block;flex-shrink:0}.history{background:var(--green)}.myth{background:var(--rust)}.literature{background:#b49655}.candidate{background:#899791}.workspace{display:grid;grid-template-columns:355px 1fr;height:553px}.timeline-pane{border-right:1px solid var(--line);display:flex;flex-direction:column;overflow:auto;background:#faf9f6;scrollbar-width:thin;scrollbar-color:#d8dccf transparent}.pane-heading{display:flex;justify-content:space-between;align-items:center;padding:20px 23px 13px;position:sticky;top:0;background:#faf9f6;z-index:3}.pane-heading h3{display:flex;align-items:center;gap:7px;margin:0;font-size:12px;font-weight:500}.pane-heading h3 svg{width:15px}.pane-heading>span{display:flex;align-items:center;gap:4px;font-size:10px;color:var(--muted)}.pane-heading>span svg{width:12px;height:12px}#timeline{padding:5px 15px 0 23px}.event{width:100%;position:relative;text-align:left;display:flex;align-items:flex-start;gap:13px;padding:0 0 0 0}.event:before{content:'';position:absolute;top:20px;bottom:-2px;left:6px;width:1px;background:#e1e2d8}.event:last-child:before{display:none}.event-dot{margin-top:20px;width:13px;height:13px;background:#faf9f6;border:1px solid #c8cdbc;border-radius:50%;position:relative;flex-shrink:0}.event-dot:after{content:'';position:absolute;inset:3px;background:var(--rust);border-radius:50%}.event[data-type="史实"] .event-dot:after{background:var(--green)}.event[data-type="文学"] .event-dot:after{background:#b49655}.event[data-type="待核实"] .event-dot:after{background:#899791}.event-inner{flex:1;min-width:0;padding:13px 12px 13px 10px;border:1px solid transparent;border-radius:5px}.event:hover .event-inner{background:#f0f1e9}.event.active .event-inner{background:#e9edde;border-color:#d2dbc5}.event.active .event-dot{border-color:var(--green)}.event-date{color:#8b8d80;font-size:10px;display:block;line-height:1.6;margin-bottom:5px}.event-title{font-size:13px;line-height:1.5;display:flex;align-items:center;justify-content:space-between;gap:7px;font-weight:500}.event-title svg{width:14px;height:14px;color:#819176}.event-location{font-size:10px;color:#8a9080;display:flex;align-items:center;gap:4px;margin-top:8px}.event-location svg{width:11px;height:11px}.event-summary{font-size:11px;line-height:1.8;color:#7d8673;margin:9px 0 0}.event .pill{font-size:9px;font-weight:400;padding:2px 5px;border-radius:2px;color:var(--rust);background:#f1e8de;white-space:nowrap}.event[data-type="史实"] .pill{color:var(--green);background:#e4e9de}.event[data-type="文学"] .pill{color:#947d44;background:#efe9d9}.list-footnote{margin:18px 28px;font-size:10px;line-height:1.8;color:#969a8c}.map-pane{position:relative;min-width:0;background:var(--sea);overflow:hidden}.map-top{position:absolute;top:17px;left:22px;right:22px;display:flex;align-items:center;justify-content:space-between;z-index:500;pointer-events:none}.map-top>span:first-child{background:#faf9f3e8;padding:8px 11px;display:flex;align-items:center;gap:7px;border:1px solid #d8ddce;border-radius:3px;font-size:11px}.map-top>span:last-child{font-size:9px;letter-spacing:.6px;color:#7d8b80;background:#e3e7e0bb;padding:5px}.map-top svg{width:14px;height:14px}#map{width:100%;height:100%;background:var(--sea);z-index:1}.leaflet-container{font-family:var(--sans);outline-offset:-2px}.leaflet-control-attribution{font-size:8px!important;background:#eef0e8cf!important;color:#7d8576}.leaflet-control-attribution a{color:var(--green)}.leaflet-bar{border:1px solid #d1d6c8!important;box-shadow:0 2px 10px #33402b06!important}.leaflet-bar a{background:#fafaf3!important;color:#68775e!important;width:29px!important;height:29px!important;line-height:29px!important;font:20px/29px Georgia!important}.leaflet-bottom.leaflet-right .leaflet-control-zoom{margin-bottom:35px;margin-right:19px}.map-caption{position:absolute;z-index:400;bottom:23px;left:22px;display:flex;gap:13px;align-items:center;pointer-events:none}.compass-letter{display:flex;flex-direction:column;align-items:center;gap:6px;font:10px Georgia;color:#74836c}.compass-letter svg{height:28px;width:28px;transform:rotate(-45deg);stroke-width:1}.map-caption>span:last-child{font-family:var(--serif);font-size:11px;color:#5f715a;line-height:1.9;background:#e3e7e0b8;padding:5px 8px;border-radius:3px}.map-caption small{font:9px var(--sans);color:#8e9987}.map-marker{border:0;background:none}.marker-pin{display:flex;align-items:center;justify-content:center;background:#f8f8ef;color:var(--green);border:1.5px solid #7f926c;box-shadow:0 3px 8px #2a3a2520;width:27px;height:27px;border-radius:50%;font:12px Georgia}.marker-pin.active{background:var(--green);color:#fff;border-color:#f6f7ed;box-shadow:0 0 0 5px #50634c20}.marker-label{position:absolute;left:32px;top:6px;white-space:nowrap;font:11px var(--serif);color:#50634c;text-shadow:0 1px 4px #fff;background:#f3f3e8a8;padding:1px 4px;border-radius:2px}.region-label{font:13px var(--serif);letter-spacing:5px;color:#929c7f;white-space:nowrap;pointer-events:none}.sea-label{font:italic 15px Georgia,serif;letter-spacing:4px;color:#8d9c94}.leaflet-popup-content-wrapper{background:#faf9f4;border-radius:5px;box-shadow:0 3px 20px #31422d1a}.leaflet-popup-content{margin:15px}.place-event{display:block;text-align:left;margin-top:8px;padding:8px;border-top:1px solid var(--line);font-size:11px;line-height:1.8;width:100%}.map-preview{position:absolute;right:23px;top:75px;width:235px;background:#fcfbf6f5;border:1px solid #d9decd;border-radius:5px;z-index:500;box-shadow:0 7px 25px #33412c0a;overflow:hidden}.map-preview img{width:100%;height:115px;object-fit:cover;filter:saturate(.7)}.preview-body{padding:15px}.preview-body .eyebrow{font-family:var(--sans);font-size:9px;letter-spacing:1px;margin-bottom:8px}.preview-body h3{font:600 16px/1.6 var(--serif);margin:0 0 8px}.preview-body p{font-size:10px;color:#898c80;line-height:1.9;margin:0 0 10px}.preview-body button{justify-content:space-between;border-top:1px solid var(--line);padding:11px 0 0;font-size:10px;color:var(--green);width:100%}.preview-body button svg{width:13px;height:13px}.map-empty{position:absolute;z-index:500;left:50%;top:55%;transform:translate(-50%,-50%);text-align:center;color:#6f7e65;font:16px/2 var(--serif);background:#faf9f4df;padding:22px 30px;border-radius:5px;white-space:nowrap}.map-empty small{font:11px var(--sans)}.chronology{display:flex;gap:32px;align-items:center;padding:21px 27px 17px;border-top:1px solid var(--line);background:#f6f6ef}.chronology-title{display:flex;align-items:center;gap:12px;min-width:243px;font-size:12px}.chronology-title>svg{color:#839076}.chronology-title small{display:block;font-size:9px;color:#969c8d;margin-top:6px;max-width:160px}.chronology-title .icon-button{margin-left:auto}.icon-button{height:31px;width:31px;padding:7px;border:1px solid var(--line);border-radius:50%;background:#faf9f4;flex-shrink:0}.icon-button svg{width:14px;height:14px}.range-wrap{width:100%;padding-top:3px}.range-wrap input{width:100%;height:4px;accent-color:var(--green);cursor:pointer;display:block}.range-labels{display:flex;justify-content:space-between;margin-top:12px;font-size:9px;color:#9b9d91}.range-labels>span:nth-child(2){color:#a4a799;letter-spacing:1px}footer{display:flex;justify-content:space-between;gap:30px;align-items:start;padding:16px 0}footer p{display:flex;gap:6px;font-size:10px;color:#969b8c;line-height:1.8;margin:0;max-width:78%}footer p svg{height:12px;width:12px;margin-top:3px}footer button{white-space:nowrap;font-size:10px!important;padding:0!important}.closing{border-top:1px solid var(--line);margin-top:10px;padding:23px 0 28px;display:flex;justify-content:space-between;color:#949a87;font:11px var(--serif);letter-spacing:2px}.closing small{font:8px var(--sans);letter-spacing:1px}.status{padding:13px 18px;margin:0 0 18px;border:1px solid #d4dcc9;border-radius:4px;background:#edf0e5;font-size:12px;line-height:1.8;color:var(--green)}.status.error{background:#f5e8df;border-color:#dcc3b0;color:#a15f43}.status button{font-size:12px;text-decoration:underline;margin-left:14px}.empty-list{font-size:12px;line-height:2;color:#899180;text-align:center;padding:55px 10px}.empty-list svg{display:block;margin:0 auto 14px}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.detail-dialog{border:0;padding:0;width:650px;max-width:95vw;max-height:90vh;background:#faf9f4;color:var(--ink);border-radius:10px;box-shadow:0 25px 90px #17231b38}.detail-dialog::backdrop,.about-dialog::backdrop{background:#25302070;backdrop-filter:blur(3px)}.dialog-close{position:absolute;right:18px;top:18px;z-index:3;background:#faf9f2ed}.detail-image{width:100%;height:255px;object-fit:cover;display:block;background:#e5e7da}.image-credit{font-size:9px;color:#989b8a;display:block;padding:7px 30px;text-align:right}.image-credit:hover{text-decoration:underline}.detail-body{padding:24px 35px 33px}.detail-body h2{font-size:29px;line-height:1.5;margin:10px 0 20px}.detail-meta{display:grid;grid-template-columns:1fr 1fr;padding:15px 0;gap:20px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:12px;line-height:1.8}.detail-meta small{display:block;font-size:10px;color:#89907d}.detail-body h3{font:600 15px var(--serif);margin:25px 0 12px}.detail-body>p{font-size:13px;line-height:2.1;color:#727a68;white-space:pre-line}.idea-box{background:#eaf0e0;border-left:3px solid #728663;padding:17px 20px;margin:23px 0;color:var(--green)}.idea-box small{font-size:10px;letter-spacing:1px}.idea-box p{font:500 15px/1.9 var(--serif);margin:9px 0 0}.source-link{display:flex;justify-content:space-between;gap:15px;font-size:11px;line-height:1.8;padding:10px 0;border-bottom:1px solid var(--line);color:var(--green)}.source-link:hover{text-decoration:underline}.source-link svg{width:12px;height:12px}.detail-note{font-size:10px!important;color:#8e9484!important;line-height:1.9!important}.detail-actions{display:flex;justify-content:space-between;align-items:center;margin-top:24px;gap:15px}.detail-actions .primary{padding:12px 15px}.detail-tags{display:flex;gap:6px;flex-wrap:wrap;margin:20px 0 0}.detail-tags span{font-size:10px;color:#8a947d;border:1px solid var(--line);border-radius:3px;padding:4px 8px}.about-dialog{border:1px solid var(--line);max-width:680px;width:95vw;max-height:85vh;padding:40px;background:#faf9f4;border-radius:9px;color:var(--ink)}.about-dialog h2{font-size:24px;margin-bottom:25px}.about-dialog h3{font:600 16px var(--serif);margin-top:25px}.about-dialog p{font-size:12px;line-height:2;color:#7c8471}.about-dialog .eyebrow{font-size:9px}#toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);padding:13px 24px;background:#3f533a;color:#fff;box-shadow:0 6px 30px #25341f24;z-index:2000;border-radius:5px;font-size:12px}#load-more{margin:12px 24px}.loading-icon{animation:spin 1.5s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(min-width:1500px){.workspace{height:620px;grid-template-columns:385px 1fr}.map-preview{width:265px}.map-preview img{height:145px}}
@media(max-width:1100px){.intro{gap:30px}.intro h1{font-size:29px}.topic-actions{gap:17px}.metrics{gap:16px}.workspace{grid-template-columns:310px 1fr}.map-preview{width:200px;right:15px}.map-top>span:last-child{display:none}.map-preview img{height:90px}.map-caption{left:12px}.map-caption>span:last-child{font-size:10px}.masthead nav{margin-right:0}.filters{gap:1px}.filters button{padding:7px 9px}.live-label{display:none}}
@media(max-width:800px){main{padding:0 20px}.masthead{margin:0 20px;height:75px}.masthead nav{gap:18px}.brand{font-size:19px}.brand-icon{width:34px;height:41px}.brand small{font-size:7px;letter-spacing:3px}.masthead>.text-button span{display:none}.intro{grid-template-columns:1fr;gap:7px;padding:30px 0}.intro h1{font-size:31px}.search-area{padding-top:12px}.intro .eyebrow{font-size:9px}.intro-text{font-size:11px}.atlas-heading{padding:22px;display:block}.topic-actions{margin-top:20px;justify-content:space-between}.metrics span{flex-direction:row;align-items:baseline;gap:7px}.metrics strong{font-size:20px}.toolbar{padding:10px 14px;align-items:flex-start}.filters{gap:4px}.filters button{font-size:10px;padding:7px}.toolbar>.text-button{font-size:0;flex-shrink:0}.workspace{grid-template-columns:1fr;height:auto}.timeline-pane{height:380px;border-right:0;border-bottom:1px solid var(--line)}.map-pane{height:430px}.map-preview{width:190px;top:65px}.chronology{padding:18px;gap:15px;flex-direction:column;align-items:stretch}.chronology-title{font-size:11px}.chronology-title small{display:inline;margin-left:10px;max-width:none}.range-labels{font-size:8px}.map-caption{bottom:22px}.map-caption>span:last-child{max-width:175px}.map-caption small{font-size:8px}footer{gap:14px;padding-bottom:8px}footer p{max-width:100%;font-size:9px}footer>button{font-size:0!important}footer>button svg{width:14px}.closing{font-size:9px;letter-spacing:1px}.closing small{display:none}.detail-body{padding:20px 23px}.detail-image{height:195px}.detail-body h2{font-size:24px}.detail-meta{font-size:11px;gap:10px}.detail-body>p{font-size:12px}.detail-actions{align-items:stretch}.detail-actions button{font-size:10px}.about-dialog{padding:33px 24px}.brand-icon svg{width:24px}.masthead nav button{font-size:11px}.masthead nav button svg{display:none}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}

/* AI settings extend the established editorial design without moving the atlas. */
.header-tools{display:flex;flex-direction:column;align-items:flex-end;gap:2px}.header-tools .text-button{padding:3px 0;font-size:11px}.settings-indicator{width:5px;height:5px;border-radius:50%;background:#b6b9ad}.settings-indicator.connected{background:#68865a}.settings-dialog{width:680px;max-width:95vw}.settings-dialog>p{margin-bottom:20px}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.settings-dialog label:not(.settings-check){display:flex;flex-direction:column;gap:8px;font-size:11px;color:#626d58;margin:16px 0 8px}.settings-dialog input:not([type=checkbox]),.settings-dialog select{width:100%;min-height:41px;border:1px solid #ccd3c0;background:#fdfcf8;border-radius:4px;padding:10px 12px;color:var(--ink);font:12px var(--sans)}.settings-dialog input[readonly]{font-size:10px;background:#efefe5;color:#929781}.settings-dialog input[type=checkbox]{accent-color:var(--green);width:15px;height:15px;flex-shrink:0}.field-hint{font-size:10px;color:#929982}.provider-note{background:#ebefe1;padding:12px 15px;border-radius:5px;margin:13px 0 18px}.provider-note p{margin:0!important;font-size:11px!important}.provider-note a{display:inline-block;font-size:10px;color:var(--green);margin-top:8px;text-decoration:underline}.source-priority{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px 0;margin:18px 0}.source-priority>span{font-size:11px;color:#6d795f}.source-priority p{font-size:11px;margin:8px 0!important}.source-priority b{font-weight:400;padding:0 5px;color:#97a187}.source-priority small{font-size:10px;line-height:1.8;color:#979d8d;display:block}.settings-check{display:flex;align-items:center;gap:9px;font-size:11px;color:#68755c;line-height:1.9;margin:12px 0}.settings-privacy{font-size:10px!important;line-height:1.9!important;color:#949c86!important}.settings-actions{display:flex;justify-content:space-between;gap:12px;margin-top:20px}.settings-foot{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-top:13px}.settings-foot small{font-size:9px;line-height:1.8;color:#949c86}.settings-foot button{font-size:10px;white-space:nowrap}.settings-dialog .status{font-size:11px;margin:15px 0 0}.settings-dialog .primary{padding:13px 18px}@media(max-width:600px){.settings-grid{grid-template-columns:1fr;gap:0}.settings-foot{flex-direction:column;align-items:flex-start;gap:4px}.header-tools .text-button{font-size:10px}.header-tools svg{width:12px;height:12px}.settings-dialog{padding:31px 23px}.settings-dialog h2{font-size:23px}.settings-actions button{font-size:10px}.header-tools{min-width:56px}.masthead nav{gap:11px}.live-label{display:block;font-size:9px}}

.playback-speed{display:flex;align-items:center;gap:8px;white-space:nowrap;font-size:11px;color:var(--muted)}.interval-stepper{display:flex;align-items:center;border:1px solid var(--line);border-radius:4px;background:#faf9f4;color:var(--green)}.interval-stepper button{width:30px;height:32px;font-size:18px}.interval-stepper button:disabled{cursor:default;opacity:.3}.interval-stepper input{font:inherit;color:inherit;width:32px;text-align:center;border:0;background:transparent;appearance:textfield;-moz-appearance:textfield}.interval-stepper input::-webkit-inner-spin-button,.interval-stepper input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.interval-stepper span{font-size:10px;margin-right:3px}@media(max-width:800px){.playback-speed{align-self:flex-end}}

.ai-search-prompt{display:flex;align-items:center;gap:16px;margin-top:18px;padding:15px 17px;background:#ebefe1;border-left:3px solid var(--green);border-radius:3px}.ai-search-prompt strong{font-size:12px;font-weight:600;color:var(--green)}.ai-search-prompt p{font-size:11px;line-height:1.8;color:#68755c;margin:7px 0 0}.ai-search-prompt button{flex-shrink:0;font-size:11px;padding:10px 12px}#storage-note{font-size:11px;line-height:1.9}@media(max-width:600px){.ai-search-prompt{align-items:flex-start;flex-direction:column;gap:10px}.ai-search-prompt button{align-self:flex-end}}

.map-empty{padding-top:34px}.map-empty>.icon-button{position:absolute;right:6px;top:6px;width:25px;height:25px;padding:4px}

.settings-actions{flex-wrap:wrap}

/* Time-based palette: existing day colors remain unchanged. */
:root{color-scheme:light;--land:#f1f0de;--land-border:#c5cdb9}
#theme-label{font-size:9px;color:var(--muted);font-weight:400;white-space:nowrap}
:root[data-theme=night]{color-scheme:dark;--paper:#191f1c;--ink:#e1e5dc;--muted:#abb5a5;--green:#adc398;--pale:#303c30;--line:#465045;--rust:#d9a184;--sea:#202e2c;--land:#344136;--land-border:#627260}
[data-theme=night] :is(.atlas,.timeline-pane,.pane-heading,.outline-button,.icon-button,.detail-dialog,.about-dialog,.map-preview,.map-empty,.interval-stepper,.leaflet-popup-content-wrapper,.leaflet-popup-tip){background:#252e27;color:var(--ink);border-color:var(--line)}
[data-theme=night] :is(#search-form,.settings-dialog input:not([type=checkbox]),.settings-dialog select){background:#202822;color:var(--ink);border-color:#596751}
[data-theme=night] :is(.chronology,.provider-note,.ai-search-prompt,.idea-box,.edition,#saved-count){background:#303c30;color:var(--ink)}
[data-theme=night] .event:hover .event-inner{background:#303930}
[data-theme=night] .event.active .event-inner{background:#394934;border-color:#7d956d}
[data-theme=night] .event-dot{background:#252e27;border-color:#7f8f75}
[data-theme=night] .event:before{background:#485543}
[data-theme=night] .event .pill{background:#49372d;color:#ebbb9a}
[data-theme=night] .event[data-type="史实"] .pill{background:#32432f;color:#bed4a7}
[data-theme=night] .event[data-type="文学"] .pill{background:#47412a;color:#dfcf93}
[data-theme=night] :is(.primary,.filters button.selected,.marker-pin.active,.brand-icon){background:#adc398;color:#192218}
[data-theme=night] .primary:hover{background:#c0d3ac;color:#192218}
[data-theme=night] :is(.intro-text,.suggestions button,.masthead nav button,.text-button,.atlas-heading p:last-child,.event-date,.event-location,.event-summary,.list-footnote,.preview-body p,.range-labels,.range-labels>span:nth-child(2),.chronology-title small,footer p,.closing,.detail-meta small,.detail-body>p,.detail-tags span,.about-dialog p,.image-credit,.live-label,.empty-list,.filters button){color:#b4beab}
[data-theme=night] :is(.field-hint,.settings-dialog label:not(.settings-check),.settings-check,.source-priority>span,.source-priority small,.settings-foot small,.ai-search-prompt p){color:#b4beab}
[data-theme=night] :is(.settings-privacy,.detail-note){color:#b4beab!important}
[data-theme=night] :is(.eyebrow,.preview-body .eyebrow,.nav-active,.source-link,.preview-body button){color:var(--green)}
[data-theme=night] .status{background:#303d2d;border-color:#667b58;color:#d7e2cc}
[data-theme=night] .status.error{background:#48312b;border-color:#95664f;color:#f0c1aa}
[data-theme=night] :is(.map-top>span:first-child,.map-top>span:last-child,.map-caption>span:last-child){background:#25332be8;color:#c0cbb6;border-color:#596b51}
[data-theme=night] :is(.compass-letter,.map-caption small,.region-label,.sea-label){color:#bcc9b4}
[data-theme=night] .marker-pin{background:#2a352b;color:#d9e7cc;border-color:#afc69b}
[data-theme=night] .marker-label{background:#26312ce8;color:#d8e4ce;text-shadow:none}
[data-theme=night] .leaflet-control-attribution{background:#25332be8!important;color:#bdc8b4}
[data-theme=night] .leaflet-bar a{background:#29352b!important;color:#d6e2cb!important}
[data-theme=night] .leaflet-bar{border-color:#64785a!important}
[data-theme=night] .leaflet-popup-close-button{color:#d6e2cb!important}
[data-theme=night] .marker-pin.active{border-color:#dde8cf;color:#192218}
[data-theme=night] :is(.map-preview img,.detail-image){filter:brightness(.82) saturate(.8)}
[data-theme=night] .settings-dialog input[readonly]{background:#303930;color:#b6c2ab}
[data-theme=night] input::placeholder{color:#9da996;opacity:1}
[data-theme=night] .detail-image{background:#303930}
[data-theme=night] .filters button.selected{color:#192218}

/* Reading polish: quiet paper surfaces, clearer type and predictable controls. */
button:disabled{cursor:default}
button, a, input, select{touch-action:manipulation}
select:focus-visible{outline:2px solid var(--rust);outline-offset:3px}
.topic-actions{gap:14px;flex-wrap:wrap;justify-content:flex-end;flex-shrink:0;max-width:48%}
.topic-actions .metrics{margin-right:8px}
.topic-actions .outline-button{white-space:nowrap}
.atlas-heading>div:first-child{min-width:0}
.title-line{flex-wrap:wrap}
#topic-title,.event-title,.detail-body h2{overflow-wrap:anywhere}
.intro-text,.atlas-heading p:last-child{font-size:13px;color:#6c7466}
.event-summary{font-size:12px;line-height:1.9}
.preview-body p{font-size:12px;color:#68725f;line-height:1.85}
.preview-body button{font-size:12px}
.map-preview{box-shadow:0 12px 32px #24301e12}
.range-labels,.chronology-title small,.list-footnote{font-size:11px}
.chronology{gap:20px}
.empty-list .outline-button{display:flex;margin:18px auto 0}
.reader-bar{position:sticky;top:0;z-index:4;display:flex;align-items:center;gap:14px;padding:12px 62px 12px 22px;background:#faf9f4;border-bottom:1px solid var(--line);min-height:58px}
.reader-bar .text-button{font-size:12px;white-space:nowrap}
#reader-position{margin:auto;color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums;white-space:nowrap}
.detail-dialog .dialog-close{position:sticky;top:13px;float:right;margin:-45px 15px 0 0;z-index:5}
.detail-heading-tools{display:flex;justify-content:space-between;align-items:center;gap:12px}
.detail-heading-tools .eyebrow{margin:0;line-height:1.7;font-family:var(--sans);letter-spacing:.5px}
.detail-heading-tools .outline-button{flex-shrink:0;padding:9px 12px;font-size:12px}
#save-story[aria-pressed=true]{background:var(--pale);color:var(--green);border-color:var(--green)}
.detail-dialog{width:720px}
.detail-body{padding:26px 42px 38px}
.detail-body>p{font-size:15px;line-height:2.1;color:#596550}
.detail-body h3{font-size:17px}
.detail-note{font-size:12px!important}
.detail-actions small{font-size:11px;color:var(--muted);line-height:1.8}
.image-credit,.source-link{font-size:11px;overflow-wrap:anywhere}
#detail-title:focus{outline:none}
[data-theme=night] .reader-bar{background:#252e27}
body.immersive .masthead,body.immersive .intro,body.immersive .closing,body.immersive footer{display:none}
body.immersive main{max-width:none;padding:16px}
body.immersive .atlas-heading{padding:18px 26px}
body.immersive .atlas-heading p:last-child{display:none}
body.immersive .workspace{height:calc(100dvh - 275px);min-height:410px}
body.immersive #status:not([hidden]){margin-bottom:12px}
@media(max-width:1100px){.topic-actions{max-width:46%}.topic-actions .metrics{width:100%;justify-content:flex-end}.chronology{flex-wrap:wrap}.range-wrap{flex-basis:100%}.chronology-title{flex:1}}
@media(max-width:800px){.topic-actions{max-width:none;justify-content:flex-start;gap:10px}.topic-actions .metrics{width:auto;margin-right:auto}.detail-body{padding:23px}.detail-body>p{font-size:14px}.masthead{gap:10px}.masthead nav{gap:12px}.map-preview{width:195px}.map-preview img{height:85px}.preview-body p{font-size:11px}.chronology{gap:12px}.range-labels>span:nth-child(2){display:none}.reader-bar{gap:6px;padding-left:14px}.detail-heading-tools{align-items:flex-start}.detail-heading-tools .eyebrow{font-size:10px}body.immersive main{padding:8px}body.immersive .workspace{height:auto;min-height:0}body.immersive .timeline-pane{height:42dvh}body.immersive .map-pane{height:55dvh;min-height:360px}}
@media(max-width:480px){.masthead{flex-wrap:wrap;height:auto;min-height:104px;padding:12px 0;gap:12px}.masthead nav{order:3;width:100%;height:32px;justify-content:center;gap:32px}.header-tools{margin-left:auto}.brand{font-size:20px}.intro{padding-top:24px}.topic-actions .metrics{width:100%;justify-content:flex-start;gap:24px}.topic-actions .outline-button{flex:1}.filters{flex-wrap:wrap}.map-caption>span:last-child{display:none}.reader-bar{font-size:11px}.reader-bar .text-button{font-size:11px;gap:3px}.detail-actions{flex-wrap:wrap}.map-empty{white-space:normal;width:85%;font-size:14px;padding:32px 12px 20px}.detail-heading-tools .outline-button{font-size:11px;padding:8px}.map-preview{width:180px}.preview-body{padding:12px}}

.source-route{margin:0;padding:12px 28px;border-top:1px solid var(--line);background:var(--pale);color:var(--green);font-size:12px;line-height:1.8}.immersive .source-route{padding:7px 26px}@media(max-width:800px){.source-route{padding:12px 20px}}

.source-route a{display:inline-block;margin-left:12px;text-decoration:underline;text-underline-offset:3px;white-space:nowrap}

/* 分享弹窗 */
.share-link-row{display:flex;gap:10px;align-items:stretch;margin:14px 0 10px}
.share-link-row input{flex:1;min-width:0;padding:10px 12px;border:1px solid var(--line,#c9c2b4);border-radius:10px;background:rgba(127,127,127,.06);font:inherit;font-size:.9rem;color:inherit}
.share-link-row button{white-space:nowrap;display:inline-flex;align-items:center;gap:6px}