.ag-root{max-width:640px;margin:8vh auto 0;text-align:center}.ag-form{display:flex;align-items:center;gap:10px;border:1px solid var(--line-strong, #ccc);border-radius:14px;padding:13px 16px;background:var(--paper, #fff);transition:border-color .2s,box-shadow .2s}.ag-form:focus-within{border-color:var(--focus-ring, #2f6f74);box-shadow:0 0 0 3px color-mix(in srgb,var(--focus-ring, #2f6f74) 12%,transparent)}.ag-input{flex:1;border:0;background:transparent;font-family:var(--font-body, serif);font-size:1.05rem;color:var(--ink, #111);outline:none}.ag-input::placeholder{color:var(--ink-mute, #888)}.ag-send{flex:none;width:36px;height:36px;border-radius:10px;border:0;background:var(--accent, #a24d35);color:#fffdf7;font-size:1.05rem;cursor:pointer;transition:background .18s,transform .1s}.ag-send:hover{background:var(--accent-hover, #7f3327)}.ag-send:active{transform:scale(.95)}.ag-chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin:18px auto 0}.ag-chip{border:1px solid var(--line, #ddd);background:transparent;border-radius:999px;padding:6px 14px;font-size:.82rem;color:var(--ink-soft, #444);cursor:pointer;font-family:var(--font-mono, monospace);transition:color .18s,border-color .18s,background .18s}.ag-chip:hover{color:var(--accent, #a24d35);border-color:var(--accent, #a24d35);background:color-mix(in srgb,var(--accent, #a24d35) 6%,transparent)}.ag-hint{font-family:var(--font-mono, monospace);font-size:.74rem;color:var(--ink-mute, #888);margin-top:22px}.ag-error{color:var(--accent, #a24d35);font-family:var(--font-body, serif);margin-top:20px}.ag-answer{text-align:left;margin-top:30px;animation:ag-rise .4s ease both}@keyframes ag-rise{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}.ag-result{margin:0 0 20px}.ag-trace{margin-top:14px;border:1px solid var(--line, #ddd);border-radius:8px;background:color-mix(in srgb,var(--paper-soft, #f0ede6) 56%,transparent);color:var(--ink-soft, #444)}.ag-trace__summary{cursor:pointer;padding:9px 12px;color:var(--link, #2f6f74);font-family:var(--font-mono, ui-monospace, monospace);font-size:.7rem;line-height:1.35;letter-spacing:.04em}.ag-trace__summary::marker{color:var(--ink-mute, #888)}.ag-trace__list{max-height:12em;overflow:auto;margin:0;padding:0 12px 11px 30px}.ag-trace__item{position:relative;padding:4px 0;font-family:var(--font-mono, ui-monospace, monospace);font-size:.7rem;line-height:1.45}.ag-trace__dot{position:absolute;left:-17px;top:.78em;width:6px;height:6px;border-radius:50%;background:var(--signal, #b33)}.ag-trace__label{color:inherit}.ag-text{font-family:var(--font-body, serif);color:var(--ink, #111);margin:0 0 22px}.ag-text>:first-child{margin-top:0}.ag-text>:last-child{margin-bottom:0}.ag-text p{font-size:1.04rem;line-height:1.75;margin:0 0 .85em}.ag-text strong{font-weight:600;color:var(--ink, #111);background-image:linear-gradient(var(--accent, #a24d35),var(--accent, #a24d35));background-size:100% 1.2px;background-repeat:no-repeat;background-position:0 100%;padding-bottom:1px}.ag-text em{font-style:italic}.ag-text a{color:var(--link, #2f6f74);text-underline-offset:2px}.ag-text a:hover{color:var(--link-hover, #19535a)}.ag-text ul,.ag-text ol{margin:.2em 0 .9em;padding-left:0;list-style:none}.ag-text ol{padding-left:1.3em;list-style:decimal}.ag-text li{font-size:1rem;line-height:1.7;margin:0 0 .45em;padding-left:1.3em;position:relative}.ag-text ul li:before{content:"→";position:absolute;left:0;color:var(--accent, #a24d35)}.ag-text ol li{padding-left:.3em}.ag-text code{font-family:var(--font-mono, monospace);font-size:.88em;background:var(--paper-soft, #f0ede6);padding:1px 6px;border-radius:5px}.ag-text h1,.ag-text h2,.ag-text h3{font-family:var(--font-display, serif);font-style:italic;font-weight:500;margin:1em 0 .4em;line-height:1.2}.ag-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(248px,1fr));gap:14px}.ag-card{background:var(--paper, #fff);border:1px solid var(--line, #ddd);border-radius:12px;padding:16px 18px;transition:border-color .2s,transform .2s,box-shadow .2s}.ag-card:hover{border-color:var(--line-strong, #bbb);transform:translateY(-2px);box-shadow:0 8px 28px -16px #00000038}.ag-card__title{font-family:var(--font-display, serif);font-style:italic;font-size:1.28rem;color:var(--ink, #111);line-height:1.15}.ag-card__summary{font-family:var(--font-body, serif);font-size:.95rem;line-height:1.6;color:var(--ink-soft, #444);margin:9px 0 10px}.ag-card__story{margin:10px 0 12px;display:grid;gap:9px}.ag-card__story-item{margin:0;min-width:0}.ag-card__story-label,.ag-card__proof-label{margin:0 0 3px;font-family:var(--font-mono, monospace);font-size:.62rem;line-height:1.2;letter-spacing:.08em;text-transform:uppercase;color:var(--signal, #b33)}.ag-card__story-copy{margin:0;font-family:var(--font-body, serif);font-size:.9rem;line-height:1.52;color:var(--ink, #111);overflow-wrap:anywhere}.ag-card__built{list-style:none;padding:0;margin:0;display:grid;gap:4px}.ag-card__built li{padding-left:1.1em;position:relative}.ag-card__built li:before{content:"+";position:absolute;left:0;color:var(--accent, #a24d35)}.ag-card__proof{margin:0 0 10px}.ag-card__eng{list-style:none;padding:0;margin:0 0 10px;display:flex;flex-direction:column;gap:5px}.ag-card__eng li{font-family:var(--font-body, serif);font-size:.9rem;line-height:1.5;color:var(--ink-soft, #444);padding-left:1.2em;position:relative}.ag-card__eng li:before{content:"→";position:absolute;left:0;color:var(--accent, #a24d35)}.ag-card__stack{list-style:none;padding:0;margin:0 0 12px;display:flex;flex-wrap:wrap;gap:6px}.ag-card__stack li{font-family:var(--font-mono, monospace);font-size:.64rem;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-mute, #888);border:1px solid var(--line, #ddd);border-radius:5px;padding:2px 7px}.ag-card__links{display:flex;flex-wrap:wrap;gap:16px;margin:0}.ag-card__links a,.ag-src{font-family:var(--font-mono, monospace);font-size:.72rem;letter-spacing:.04em;color:var(--link, #2f6f74);background-image:linear-gradient(currentColor,currentColor);background-size:0% 1px;background-repeat:no-repeat;background-position:0 100%;transition:background-size .25s,color .18s;padding-bottom:2px}.ag-card__links a:hover,.ag-src:hover{background-size:100% 1px;color:var(--link-hover, #19535a)}.ag-pubs{list-style:none;padding:0;margin:0}.ag-pub{display:grid;grid-template-columns:52px 1fr;gap:14px;padding:10px 0;border-bottom:1px dashed var(--line, #ddd);text-align:left}.ag-pub:last-child{border-bottom:0}.ag-pub__year{color:var(--signal, #b33);font-family:var(--font-mono, monospace);font-size:.8rem;padding-top:2px}.ag-pub__body{min-width:0}.ag-pub__title-zh{display:block;font-family:var(--font-ui, system-ui, sans-serif);font-size:.96rem;font-weight:650;line-height:1.45;color:var(--ink, #111);margin:0 0 4px}.ag-pub__cite{display:block;font-family:var(--font-serif, serif);font-size:.95rem;line-height:1.55;color:var(--ink, #111)}.ag-pub__cite a{color:var(--link, #2f6f74)}.ag-pub__cite a:hover{color:var(--link-hover, #19535a)}.ag-stack{text-align:left;display:flex;flex-direction:column;gap:10px}.ag-stack__group{display:flex;flex-direction:column;gap:3px}.ag-stack__label{font-family:var(--font-mono, monospace);font-size:.68rem;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-mute, #888)}.ag-stack__items{font-family:var(--font-serif, serif);font-size:.98rem;color:var(--ink, #111)}.ag-timeline{list-style:none;padding:0;margin:0;text-align:left}.ag-timeline li{font-family:var(--font-serif, serif);font-size:.98rem;color:var(--ink, #111);line-height:1.5;padding:6px 0 6px 1.2em;position:relative;border-bottom:1px dotted var(--line, #ddd)}.ag-timeline li:last-child{border-bottom:0}.ag-timeline li:before{content:"·";position:absolute;left:.35em;color:var(--signal, #b33)}.ag-contact{text-align:left;font-family:var(--font-serif, serif)}.ag-contact__name{color:var(--ink, #111);font-size:1rem;margin:0 0 4px}.ag-contact a{color:var(--link, #2f6f74)}.ag-contact a:hover{color:var(--link-hover, #19535a)}.ag-contact__links{display:flex;flex-wrap:wrap;gap:14px;margin-top:6px}.ag-sources{margin-top:12px;display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 12px}.ag-sources__label{font-family:var(--font-mono, monospace);font-size:.64rem;text-transform:uppercase;letter-spacing:.1em;color:var(--ink-mute, #888)}@media(max-width:720px){.ag-root{margin-top:5vh}.ag-cards{grid-template-columns:1fr}}:lang(zh-Hans) .ag-text,:lang(zh-Hant) .ag-text,:lang(zh-Hans) .ag-card__summary,:lang(zh-Hant) .ag-card__summary,:lang(zh-Hans) .ag-card__story-copy,:lang(zh-Hant) .ag-card__story-copy,:lang(zh-Hans) .ag-card__eng li,:lang(zh-Hant) .ag-card__eng li,:lang(zh-Hans) .ag-card__built li,:lang(zh-Hant) .ag-card__built li{font-family:var(--font-ui, system-ui, sans-serif)}:lang(zh-Hans) .ag-card__story-label,:lang(zh-Hant) .ag-card__story-label,:lang(zh-Hans) .ag-card__proof-label,:lang(zh-Hant) .ag-card__proof-label{font-family:var(--font-ui, system-ui, sans-serif);letter-spacing:0;text-transform:none}:lang(zh-Hans) .ag-chip,:lang(zh-Hant) .ag-chip{font-family:var(--font-ui, system-ui, sans-serif);letter-spacing:0}