:root{color-scheme:light;--paper:#f6f3ed;--surface:#fffdfa;--ink:#292c28;--muted:#76796f;--line:#dedfd4;--olive:#6e7857;--blue:#718d95;--rust:#9a664e;--serif:Georgia,"Songti SC","SimSun",serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;font-size:14px;line-height:1.65;-webkit-font-smoothing:antialiased}
button,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:var(--olive);text-decoration-thickness:1px;text-underline-offset:3px}button:focus-visible,a:focus-visible,summary:focus-visible,textarea:focus-visible{outline:2px solid var(--olive);outline-offset:4px}[hidden]{display:none!important}
.home-view{max-width:1000px;margin:auto;padding:27px 22px calc(24px + env(safe-area-inset-bottom))}.edition{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:11px;letter-spacing:.08em}.edition-mark{display:grid;place-items:center;width:24px;height:24px;border:1px solid var(--olive);border-radius:50%;color:var(--olive);font-family:var(--serif);font-size:13px}.edition-no{margin-left:auto;font-variant-numeric:tabular-nums;letter-spacing:.14em}
.home-intro h1{font-family:var(--serif);font-weight:500;font-size:clamp(27px,7.5vw,38px);line-height:1.3;letter-spacing:.04em;margin:26px 0 12px}.home-intro h1 span{display:block;font-family:inherit;color:var(--muted);font-size:19px;letter-spacing:.08em;margin-top:7px}.intro-text{font-size:13px;color:#74776e;line-height:1.8;margin:16px 0 20px}.map-instruction{display:flex;gap:8px;align-items:center;font-size:12px}.tap-icon{font-size:18px;line-height:1;color:var(--olive)}.legend{display:flex;gap:17px;margin-top:17px;padding-top:17px;border-top:1px solid var(--line);font-size:10px;color:var(--muted)}.legend>span{display:flex;gap:6px;align-items:center}.legend-line{display:block;width:20px;border-top:2px solid var(--olive)}.legend-line.ideas{border-color:var(--blue)}.legend-line.parallel{border-color:#999588;border-top-style:dashed}.desktop-note{display:none}
.map-section{margin-top:24px}.map-board{position:relative;width:100%;max-width:480px;margin:auto;aspect-ratio:360/810}.map-lines{position:absolute;inset:0;width:100%;height:100%;overflow:visible}.cluster-background{fill:#ebede3;stroke:#dde1d2;stroke-width:1}.map-era{font-size:10px;fill:#8a8c80;font-family:Georgia,"Microsoft YaHei",serif;letter-spacing:1px}.cluster-caption{font-size:9px;fill:#7b846b;letter-spacing:1px}.relation-line{fill:none;stroke:var(--olive);stroke-width:1.3;vector-effect:non-scaling-stroke}.relation-line.ideas{stroke:var(--blue)}.relation-line.parallel{stroke:#b0ac9f;stroke-dasharray:4 4}.relation-hit{fill:none;stroke:transparent;stroke-width:18;cursor:pointer}.relation-label{cursor:pointer}.relation-label rect{fill:var(--paper);stroke:#e3e2d8;stroke-width:.6}.relation-label text{fill:#707569;font-size:8px;letter-spacing:.2px;pointer-events:none}.relation-group:hover .relation-line,.relation-group:focus-visible .relation-line{stroke-width:2.5}.relation-group:focus-visible{outline:none}
.figure-node{position:absolute;transform:translate(-50%,-50%);width:39%;min-height:80px;background:var(--surface);border:1px solid #d4d8c8;border-radius:12px;box-shadow:0 3px 0 rgba(108,118,83,.06);padding:10px 11px;text-align:left;color:var(--ink);transition:transform .15s,box-shadow .15s}.figure-node:active{transform:translate(-50%,-50%) scale(.97)}.figure-node:hover{box-shadow:0 7px 18px rgba(59,71,43,.09)}.node-top{display:flex;justify-content:space-between;color:#919688;font-size:8px;letter-spacing:.15em;line-height:1}.node-dot{height:5px;width:5px;background:var(--olive);border-radius:50%;margin-top:2px}.figure-node[data-group="italy"] .node-dot,.figure-node[data-group="france"] .node-dot{background:var(--rust)}.node-name{display:block;font-family:var(--serif);font-weight:600;font-size:18px;line-height:1.35;margin-top:7px;letter-spacing:.06em}.node-topic{display:block;font-size:9px;color:#858b79;margin-top:4px;white-space:nowrap}.map-caption{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:13px;color:var(--muted);font-size:10px}.home-footer{margin-top:24px;font-size:10px;color:#8d9085;line-height:1.9}.home-footer p:last-child{font-family:var(--serif);letter-spacing:.12em;margin-top:16px}
.detail-view{position:fixed;inset:0;top:var(--viewport-offset,0px);height:var(--viewport-height,100dvh);background:var(--paper);display:flex;flex-direction:column;max-width:620px;margin:0 auto;z-index:10}.detail-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 18px;padding-top:calc(8px + env(safe-area-inset-top));border-bottom:1px solid var(--line);background:rgba(246,243,237,.97);flex-shrink:0;min-height:58px}.back-button{min-height:44px;padding:0 4px;background:none;border:0;color:var(--ink);font-size:12px;display:flex;align-items:center;gap:10px}.back-button span{font-size:22px}.header-caption{color:#989b8e;font-size:10px;letter-spacing:.12em}.header-symbol{font-family:var(--serif);border:1px solid #b1b8a2;border-radius:50%;width:23px;height:23px;display:grid;place-items:center;color:var(--olive);font-size:11px}.detail-scroll{flex:1;min-height:0;overflow-y:auto;padding:22px 21px 12px;overscroll-behavior:contain}.profile-top{display:flex;align-items:center;justify-content:space-between;font-size:10px;color:var(--muted)}.profile-index{letter-spacing:.12em;color:var(--olive)}.profile-life{font-family:Georgia,serif;letter-spacing:.05em}.profile h1{font-family:var(--serif);font-size:31px;line-height:1.25;margin:11px 0 3px;font-weight:500;letter-spacing:.07em}.profile-latin{font-family:Georgia,serif;font-style:italic;font-size:12px;color:#8d9183;margin:0}.profile-summary{line-height:1.85;color:#697061;font-size:13px;margin:16px 0 17px}.reading-details{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.reading-details summary{list-style:none;min-height:46px;display:flex;align-items:center;justify-content:space-between;font-size:11px;color:var(--olive);cursor:pointer}.reading-details summary::-webkit-details-marker{display:none}.reading-details summary span{font-size:19px;font-weight:300}.reading-details[open] summary span{transform:rotate(45deg)}.reading-details h2{font-size:10px;text-transform:uppercase;color:var(--muted);font-weight:500;margin:16px 0 7px;letter-spacing:.08em}.reading-details ul{padding-left:17px;margin:0;font-size:12px}.reading-details p{font-size:12px;line-height:1.85;margin:6px 0 14px}.concept-term{color:var(--ink);font-weight:600}.material-note{color:var(--muted)}.source-links{display:flex;flex-direction:column;gap:8px;font-size:11px;padding-bottom:15px}.source-links a{overflow-wrap:anywhere}
.conversation-heading{display:flex;justify-content:space-between;align-items:center;gap:8px;margin:23px 0 12px;font-size:12px;color:var(--ink)}.ai-status{color:var(--olive);font-size:9px;letter-spacing:.02em}.mode-tabs{display:flex;padding:4px;border:1px solid var(--line);border-radius:10px;background:#eeede5;gap:4px}.mode-tabs button{flex:1;background:none;border:0;border-radius:7px;min-height:38px;color:var(--muted);font-size:11px}.mode-tabs button[aria-pressed="true"]{background:var(--surface);color:var(--ink);box-shadow:0 1px 4px #303a2212}.mode-note{font-size:10px;color:var(--muted);line-height:1.8;margin:12px 1px 18px}.mode-note.warning{background:#efe9dc;color:#8b7650;padding:9px 11px;border-radius:8px}.messages{display:flex;flex-direction:column;gap:16px}.message{max-width:95%;font-size:13px}.message.user{align-self:flex-end;max-width:88%;background:#e3e8d9;border-radius:14px 14px 3px 14px;padding:11px 14px}.message.assistant{align-self:flex-start;width:100%}.message-label{font-size:9px;color:var(--olive);margin-bottom:6px;display:flex;align-items:center;gap:6px;letter-spacing:.05em}.message-label:before{content:"";display:inline-block;height:5px;width:5px;border-radius:50%;background:var(--olive)}.message-content{line-height:1.9;white-space:pre-wrap;overflow-wrap:anywhere}.message.assistant .message-content{border-left:2px solid #d6dccb;padding-left:12px}.message.error .message-label{color:#976a51}.message.error .message-label:before{background:#976a51}.message-citations{display:flex;flex-wrap:wrap;gap:7px;margin:10px 0 0 14px;font-size:9px}.message-citations a{color:var(--muted);background:#efeee6;padding:3px 7px;border-radius:4px}.suggestions{display:flex;flex-direction:column;gap:8px;margin-top:20px}.suggestion-button{min-height:45px;border:1px solid #dfe3d4;border-radius:9px;background:transparent;color:#687357;font-size:11px;text-align:left;padding:11px 12px;display:flex;align-items:center;justify-content:space-between;gap:9px}.suggestion-button:after{content:"↗";color:#a4ad96;font-size:15px}.suggestion-button:active{background:#e9ecdf}.suggestion-button:disabled{opacity:.5;cursor:wait}.answer-note{font-size:9px;color:#95998b;line-height:1.8;margin:20px 0 4px}.chat-form{display:flex;align-items:flex-end;gap:10px;flex-shrink:0;padding:12px 16px calc(12px + env(safe-area-inset-bottom));background:var(--surface);border-top:1px solid var(--line)}.chat-form textarea{resize:none;flex:1;min-width:0;min-height:44px;max-height:100px;border:1px solid #e0e3d8;border-radius:12px;padding:12px 13px;color:var(--ink);background:#f6f5ef;font-size:13px;line-height:1.5;outline-offset:2px}.chat-form textarea::placeholder{color:#a0a394}.chat-form button{width:44px;height:44px;flex-shrink:0;background:var(--olive);border:0;border-radius:12px;color:#fff;font-size:24px;line-height:1}.chat-form button:disabled{opacity:.45;cursor:wait}.chat-form[aria-disabled="true"] textarea{opacity:.55}
.relation-dialog{border:1px solid var(--line);border-radius:19px;max-width:420px;width:calc(100% - 28px);padding:19px 21px 22px;position:fixed;inset:auto 0 max(14px,env(safe-area-inset-bottom));margin:0 auto;background:var(--surface);color:var(--ink);box-shadow:0 18px 70px #1d241a33}.relation-dialog::backdrop{background:#20271e42;backdrop-filter:blur(2px)}.dialog-top{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:10px;letter-spacing:.08em}.dialog-top button{border:0;background:#eeefe6;border-radius:50%;width:36px;height:36px;font-size:23px;color:var(--muted)}.relation-dialog h2{font-family:var(--serif);font-size:23px;font-weight:500;margin:13px 0}.relation-dialog p{font-size:13px;line-height:1.9;margin:0 0 19px}.relation-dialog .source-links{padding:13px 0 0;border-top:1px solid var(--line)}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.noscript-note{padding:20px}
@media(min-width:760px){.home-view{padding:65px 38px 32px}.home-layout{display:grid;grid-template-columns:minmax(250px,1fr) minmax(360px,480px);gap:55px}.home-intro{position:sticky;top:65px;align-self:start}.home-intro h1{font-size:33px;margin-top:39px}.home-intro h1 span{font-size:24px}.intro-text{margin:24px 0 30px;font-size:14px}.legend{gap:13px;font-size:10px;margin-top:29px;padding-top:22px}.desktop-note{display:block;color:#969b8b;font-size:11px;line-height:1.9;margin-top:24px}.map-section{margin-top:0}.home-footer{max-width:650px;margin-top:36px}.detail-view{border-left:1px solid var(--line);border-right:1px solid var(--line)}.detail-scroll{padding:28px 32px 16px}.chat-form{padding-left:26px;padding-right:26px}.relation-dialog{inset:0;margin:auto;height:fit-content}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
.relation-hit{stroke-width:44;vector-effect:non-scaling-stroke}.node-topic{font-size:10px}.legend,.map-caption{font-size:11px}.message{font-size:14px}.chat-form textarea{font-size:16px}
.connection-instruction{font-size:11px;color:var(--olive);margin:8px 0 0}.figure-node{touch-action:none;-webkit-touch-callout:none;user-select:none}.figure-node.connection-source{border-color:var(--olive);box-shadow:0 0 0 3px #6e785730}.figure-node.connection-target{border-color:var(--rust);box-shadow:0 0 0 3px #9a664e35}.connection-draft{fill:none;stroke:var(--rust);stroke-width:2.5;stroke-dasharray:5 4;vector-effect:non-scaling-stroke;pointer-events:none}.connection-notice{position:fixed;bottom:calc(16px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);display:flex;align-items:center;justify-content:space-between;gap:10px;width:calc(100% - 32px);max-width:420px;padding:12px 14px;background:var(--surface);border:1px solid var(--olive);border-radius:12px;box-shadow:0 8px 30px #292c2826;z-index:20;font-size:11px}.connection-notice button{border:0;background:#ebede3;color:var(--olive);min-width:48px;min-height:40px;border-radius:8px}
.discussion-view{position:fixed;inset:0;top:var(--viewport-offset,0px);height:var(--viewport-height,100dvh);max-width:1000px;margin:auto;background:var(--paper);display:flex;flex-direction:column;z-index:10}.discussion-layout{flex:1;min-height:0;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);grid-template-rows:auto minmax(0,1fr);gap:12px;padding:16px 16px 0}.discussion-participant{background:var(--surface);border:1px solid #d4d8c8;border-radius:12px;padding:12px 14px;min-width:0;align-self:start}.participant-left{grid-column:1;grid-row:1;border-top:3px solid var(--olive)}.participant-right{grid-column:2;grid-row:1;border-top:3px solid var(--rust)}.discussion-side{font-size:9px;color:var(--olive);letter-spacing:.12em}.participant-right .discussion-side{color:var(--rust)}.discussion-participant h2{font-family:var(--serif);font-size:21px;line-height:1.35;letter-spacing:.03em;font-weight:500;margin:5px 0}.discussion-topic-tags{font-size:10px;color:var(--muted);margin:0}.discussion-profile-summary{display:none;font-size:12px;color:var(--muted);line-height:1.8}.discussion-materials{font-size:10px;color:var(--muted);margin-top:9px}.discussion-materials summary{cursor:pointer;color:var(--olive);min-height:25px}.discussion-materials p{font-size:11px;line-height:1.8;margin:8px 0}.discussion-materials a{overflow-wrap:anywhere;font-size:10px}.discussion-center{grid-column:1/3;grid-row:2;display:flex;flex-direction:column;min-height:0;min-width:0}.discussion-scroll{flex:1;min-height:0;overflow:auto;padding:0 2px 18px;overscroll-behavior:contain}.discussion-note{font-size:10px;color:var(--muted);line-height:1.8;margin:0 0 18px}.discussion-field-label{display:block;font-size:12px;margin-bottom:8px}.discussion-center textarea{display:block;width:100%;resize:vertical;min-height:74px;max-height:130px;border:1px solid var(--line);border-radius:11px;padding:11px 12px;font:inherit;font-size:16px;line-height:1.65;color:var(--ink);background:var(--surface)}.discussion-round-setting{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:12px 0 20px;color:var(--muted);font-size:11px}.discussion-rounds{display:flex;gap:6px}.discussion-rounds button{border:1px solid var(--line);border-radius:8px;min-height:40px;min-width:47px;background:var(--surface);color:var(--muted);font-size:12px}.discussion-rounds button[aria-pressed="true"]{background:#e6ebdd;border-color:var(--olive);color:var(--olive)}.discussion-empty{color:#939786;text-align:center;font-family:var(--serif);font-size:18px;line-height:1.8;margin:35px 0}.discussion-messages{display:flex;flex-direction:column;gap:18px}.discussion-turn{max-width:94%;padding:13px 14px;border:1px solid #dbe0cf;border-radius:13px 13px 13px 3px;background:#f0f3e9;align-self:flex-start;font-size:14px}.discussion-turn.right{align-self:flex-end;background:#f6eee7;border-color:#e5d9cc;border-radius:13px 13px 3px 13px}.discussion-turn-label{font-size:10px;color:var(--olive);margin-bottom:7px}.discussion-turn.right .discussion-turn-label{color:var(--rust)}.discussion-turn .message-citations{margin-left:0}.discussion-thinking{font-size:11px;color:var(--olive);margin:18px 0}.discussion-error{font-size:12px;color:var(--rust);padding:12px;background:#f1e7df;border-radius:9px}.discussion-controls{display:flex;align-items:center;gap:8px;flex-shrink:0;min-height:76px;padding:12px 0 calc(12px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:var(--paper)}.discussion-controls span{flex:1;min-width:0;font-size:10px;color:var(--muted)}.discussion-controls button{min-height:44px;border:1px solid var(--line);border-radius:9px;background:var(--surface);color:var(--ink);padding:0 13px;font-size:12px;white-space:nowrap}.discussion-controls #discussion-start{background:var(--olive);border-color:var(--olive);color:white}.discussion-controls button:disabled{opacity:.45;cursor:wait}
@media(min-width:760px){.discussion-view{border-left:1px solid var(--line);border-right:1px solid var(--line)}.discussion-layout{grid-template-columns:170px minmax(0,1fr) 170px;grid-template-rows:minmax(0,1fr);gap:22px;padding:28px 24px 0}.participant-left{grid-column:1;grid-row:1}.participant-right{grid-column:3;grid-row:1}.discussion-center{grid-column:2;grid-row:1}.discussion-profile-summary{display:block}.discussion-participant h2{font-size:24px}.discussion-turn{max-width:96%}}