/*! tailwindcss v4.2.1 | MIT License | https://tailwindcss.com */
@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before{box-sizing:border-box;border:0 solid;margin:0;padding:0}::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){-webkit-appearance:button;appearance:button}::file-selector-button{-webkit-appearance:button;appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.relative{position:relative}.start{inset-inline-start:var(--spacing)}.block{display:block}.table{display:table}}:root{--ink:#18241e;--muted:#647068;--forest:#174d38;--cream:#f5f0e6;--paper:#fffdf8;--line:#ded8cb;--gold:#d49b43}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--ink);background:radial-gradient(circle at 12% 8%,#d49b4321,#0000 28rem),linear-gradient(135deg,#f8f4eb 0%,#f1ecdf 100%);margin:0;font-family:PingFang SC,Microsoft YaHei,Noto Sans CJK SC,system-ui,sans-serif}button,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}.site-shell{min-height:100vh;padding:0 5vw}.topbar{border-bottom:1px solid #174d3824;justify-content:space-between;align-items:center;max-width:1440px;margin:0 auto;padding:22px 0 18px;display:flex}.brand{color:inherit;align-items:center;gap:12px;text-decoration:none;display:flex}.brand-mark,.assistant-avatar{background:var(--forest);color:#fff;border-radius:12px 12px 12px 4px;justify-content:center;align-items:center;width:44px;height:44px;font-family:Georgia,Songti SC,serif;font-size:21px;font-weight:700;display:inline-flex}.brand strong,.brand small{display:block}.brand strong{letter-spacing:.08em;font-family:Georgia,Songti SC,serif;font-size:17px}.brand small{color:var(--muted);letter-spacing:.13em;margin-top:3px;font-size:11px}.secret-badge{color:#a72c23;letter-spacing:.18em;border:1.5px solid #b13a2f;border-radius:5px;margin-left:5px;padding:3px 3px 3px 5px;font-family:KaiTi,STKaiti,serif;font-size:.63em;font-style:normal;line-height:1;display:inline-block;transform:rotate(-7deg)translateY(-1px)}.course-status{color:#103a2a;background:#ffffff85;border:1px solid #174d3824;border-radius:999px;align-items:center;gap:8px;padding:9px 13px;font-size:12px;display:flex}.status-dot{background:#39a06e;border:3px solid #c9ebdb;border-radius:50%;width:10px;height:10px}.hero{grid-template-columns:minmax(0,.85fr) minmax(520px,1.15fr);align-items:center;gap:clamp(44px,6vw,96px);max-width:1440px;min-height:calc(100vh - 145px);margin:0 auto;padding:58px 0 48px;display:grid}.hero-copy{padding-left:clamp(0px,2vw,30px)}.eyebrow{color:var(--forest);letter-spacing:.12em;align-items:center;gap:10px;margin:0 0 18px;font-size:13px;font-weight:700;display:flex}.eyebrow:before{background:var(--gold);content:"";width:28px;height:2px}h1{letter-spacing:-.045em;margin:0;font-family:Georgia,Songti SC,STSong,serif;font-size:clamp(42px,5.1vw,72px);font-weight:600;line-height:1.06}h1 span{color:var(--forest);letter-spacing:-.025em;margin-top:10px;font-size:.68em;display:block}.hero-description{color:#566159;max-width:590px;margin:26px 0 30px;font-size:16px;line-height:1.85}.course-map{border-bottom:1px solid var(--line);border-top:1px solid var(--line);grid-template-columns:repeat(2,minmax(0,1fr));margin:0 0 28px;padding:9px 0;display:grid}.course-map-item{align-items:center;gap:13px;min-width:0;padding:10px 8px;display:flex}.course-map-item>span{color:var(--gold);width:22px;font-family:Georgia,serif;font-size:13px}.course-map-item strong,.course-map-item small{display:block}.course-map-item strong{margin-bottom:3px;font-size:13px}.course-map-item small{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:11px;overflow:hidden}.trust-note{align-items:flex-start;gap:12px;display:flex}.trust-icon{background:var(--forest);color:#fff;border-radius:50%;flex:none;justify-content:center;align-items:center;width:24px;height:24px;margin-top:2px;font-size:12px;display:flex}.trust-note p{color:var(--muted);margin:0;font-size:12px;line-height:1.6}.trust-note strong{color:var(--ink);font-size:13px;display:block}.chat-panel{background:#fffdf8f0;border:1px solid #174d382e;border-radius:26px;flex-direction:column;height:min(720px,100vh - 150px);min-height:570px;display:flex;position:relative;overflow:hidden;box-shadow:0 28px 80px #30382b24,0 3px 10px #30382b0d}.chat-panel:before{background:var(--gold);content:"";height:4px;position:absolute;top:0;left:28px;right:28px}.chat-heading{border-bottom:1px solid #ebe5d9;justify-content:space-between;align-items:center;padding:24px 26px 18px;display:flex}.chat-heading>div{align-items:center;gap:12px;display:flex}.assistant-avatar{border-radius:50%;width:42px;height:42px;font-size:18px}.chat-heading strong,.chat-heading small{display:block}.chat-heading strong{font-size:14px}.chat-heading small{color:var(--muted);align-items:center;gap:5px;margin-top:4px;font-size:11px;display:flex}.chat-heading small i{background:#39a06e;border-radius:50%;width:6px;height:6px}.knowledge-pill{color:var(--forest);background:#edf3ee;border-radius:999px;padding:7px 10px;font-size:11px;font-weight:700}.chat-heading-actions{align-items:center;gap:8px;display:flex;position:relative}.common-questions-trigger{color:#78571c;cursor:pointer;white-space:nowrap;background:#fffaf0;border:1px solid #d8bd8d;border-radius:999px;align-items:center;gap:4px;padding:7px 10px;font-size:11px;font-weight:700;display:inline-flex}.common-questions-trigger:hover,.common-questions-trigger[aria-expanded=true]{background:#f3dfb9;border-color:#c99a4b}.common-questions-trigger b{font-size:14px;font-weight:400;line-height:.6}.common-questions{z-index:5;background:#fffdf8;border:1px solid #d9c49d;border-radius:12px;gap:7px;width:270px;padding:12px;display:grid;position:absolute;top:calc(100% + 9px);right:0;box-shadow:0 12px 28px #40321929}.common-questions strong{color:#6a5325;padding:1px 2px 4px;font-size:11px}.common-questions button{color:#405047;cursor:pointer;text-align:left;background:#fff;border:1px solid #e5dccb;border-radius:8px;padding:8px 9px;font-size:11px;line-height:1.45}.common-questions button:hover{color:#5f4716;background:#f8efd9;border-color:#d1ac65}.messages{flex-direction:column;flex:1;gap:18px;padding:24px 26px 12px;display:flex;overflow-y:auto}.message{max-width:88%}.message.user{align-self:flex-end}.message-label{color:#899087;margin:0 0 6px 3px;font-size:10px}.message.user .message-label{text-align:right;margin-left:0;margin-right:3px}.message-bubble{color:#354038;white-space:pre-wrap;background:#f0ede5;border-radius:4px 16px 16px;padding:14px 16px;font-size:14px;line-height:1.75}.message.user .message-bubble{background:var(--forest);color:#fff;border-radius:16px 4px 16px 16px}.message.pending .message-bubble{color:var(--muted);animation:1.4s ease-in-out infinite breathe}@keyframes breathe{50%{opacity:.55}}.message-sources{flex-wrap:wrap;align-items:flex-start;gap:6px;margin-top:8px;display:flex}.message-sources>span{color:var(--muted);padding:6px 0;font-size:10px}.source-reference{position:relative}.message-sources button{border:1px solid var(--line);color:var(--forest);cursor:pointer;text-align:left;background:#fff;border-radius:8px;padding:5px 8px;font-size:10px;transition:all .15s}.message-sources button:hover,.message-sources button[aria-expanded=true]{background:#edf4ef;border-color:#174d3873}.message-sources button[aria-expanded=true]{border-bottom-right-radius:0;border-bottom-left-radius:0}.source-detail{color:#3f4a42;background:#fff;border:1px solid #174d3873;border-radius:0 8px 8px;max-width:min(520px,100%);margin-top:-1px;padding:10px 12px;font-size:12px;line-height:1.65;box-shadow:0 8px 20px #1e281f1a}.source-detail strong{font-size:12px;display:block}.source-detail small{color:var(--muted);margin-top:2px;font-size:11px;display:block}.source-detail p{margin:7px 0 0}.suggestions{padding:4px 26px 14px}.suggestions>span{color:var(--muted);margin-bottom:8px;font-size:10px;display:block}.suggestions>div{flex-wrap:wrap;gap:7px;display:flex}.suggestions button{color:#4e5a52;cursor:pointer;text-align:left;background:0 0;border:1px solid #d8d2c7;border-radius:999px;padding:7px 10px;font-size:11px;transition:all .15s}.suggestions button:hover{color:#6b4b15;background:#f3dfb9;border-color:#d7b675;transform:translateY(-1px)}.composer{border-top:1px solid #ebe5d9;padding:16px 20px 18px}.composer>label{width:1px;height:1px;position:absolute;left:-9999px;overflow:hidden}.composer-box{background:#f3f0e8;border:1px solid #0000;border-radius:14px;align-items:flex-end;gap:10px;padding:10px;transition:all .15s;display:flex}.composer-box:focus-within{background:#fff;border-color:#174d3859;box-shadow:0 0 0 3px #174d3814}.composer textarea{color:var(--ink);resize:none;background:0 0;border:0;outline:0;flex:1;min-height:42px;max-height:110px;padding:4px;font-size:13px;line-height:1.5}.composer textarea::placeholder{color:#929890}.composer button{background:var(--forest);color:#fff;cursor:pointer;border:0;border-radius:10px;align-items:center;gap:7px;padding:11px 13px;display:flex}.composer button:disabled{cursor:not-allowed;opacity:.36}.composer button span{font-size:12px}.composer button b{font-size:15px;font-weight:400}.composer>p{color:#989e97;text-align:right;margin:7px 4px 0;font-size:9px}footer{color:#737d75;justify-content:space-between;align-items:center;max-width:1440px;margin:0 auto;padding:10px 0 22px;font-size:10px;display:flex}@media (max-width:1050px){.hero{grid-template-columns:1fr;max-width:760px;padding-top:44px}.hero-copy{padding-left:0}.chat-panel{height:680px}}@media (max-width:640px){html,body{height:100%;overflow:hidden}body{background:var(--paper)}.site-shell{flex-direction:column;height:100dvh;min-height:100dvh;padding:0;display:flex}.topbar{flex:0 0 58px;width:100%;padding:10px 16px}.brand{gap:10px;width:100%}.brand-mark{border-radius:10px 10px 10px 3px;width:34px;height:34px;font-size:17px}.brand>span:last-child{flex:1;min-width:0}.brand strong{letter-spacing:.1em;white-space:nowrap;justify-content:space-between;align-items:center;font-size:20px;line-height:1;display:flex}.secret-badge{flex:none;margin-left:8px;padding:3px 3px 3px 5px;font-size:.56em}.brand small,.course-status{display:none}.hero{flex:1;width:100%;max-width:none;min-height:0;margin:0;padding:0;display:block}.hero-copy,footer{display:none}.chat-panel{box-shadow:none;border:0;border-radius:0;height:100%;min-height:0}.chat-panel:before{height:3px;left:0;right:0}.chat-heading{padding:13px 16px 11px}.assistant-avatar{width:34px;height:34px;font-size:15px}.chat-heading strong{font-size:13px}.chat-heading small{margin-top:2px;font-size:10px}.knowledge-pill{display:none}.chat-heading-actions{margin-left:auto}.common-questions-trigger{padding:6px 8px;font-size:10px}.common-questions{width:min(278px,100vw - 32px);top:calc(100% + 7px);right:0}.messages{gap:12px;min-height:0;padding:14px 16px 8px}.message{max-width:94%}.message-bubble{padding:11px 13px;font-size:13px;line-height:1.65}.suggestions{padding:0 16px 9px}.suggestions>span,.suggestions button:nth-child(n+3){display:none}.suggestions>div{gap:6px}.suggestions button{padding:6px 8px;font-size:10px}.composer{padding:10px 12px calc(10px + env(safe-area-inset-bottom))}.composer-box{border-radius:12px;gap:7px;padding:7px 8px}.composer textarea{min-height:36px;max-height:76px;font-size:13px}.composer button{border-radius:9px;padding:9px 11px}.composer button span,.composer>p{display:none}.source-detail{max-width:min(360px,100vw - 32px);font-size:11px}}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}