@layer properties;@layer theme,base,components,utilities;@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-transition-duration: .15s;--default-transition-timing-function: cubic-bezier(.4, 0, .2, 1);--default-font-family: var(--font-sans);--default-mono-font-family: var(--font-mono)}}@layer base{*,:after,:before,::backdrop,::file-selector-button{box-sizing:border-box;margin:0;padding:0;border:0 solid}html,:host{line-height:1.5;-webkit-text-size-adjust:100%;tab-size:4;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;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{font-size:75%;line-height:0;position:relative;vertical-align:baseline}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{display:block;vertical-align:middle}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea,::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;border-radius:0;background-color:transparent;opacity:1}: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)){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,::-webkit-datetime-edit-year-field,::-webkit-datetime-edit-month-field,::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute-field,::-webkit-datetime-edit-second-field,::-webkit-datetime-edit-millisecond-field,::-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]),::file-selector-button{appearance:button}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer utilities{.visible{visibility:visible}.fixed{position:fixed}.static{position:static}.\!start{inset-inline-start:var(--spacing)!important}.start{inset-inline-start:var(--spacing)}.end{inset-inline-end:var(--spacing)}.block{display:block}.hidden{display:none}.inline{display:inline}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.resize{resize:both}.ring{--tw-ring-shadow: var(--tw-ring-inset,) 0 0 0 calc(1px + var(--tw-ring-offset-width)) var(--tw-ring-color, currentcolor);box-shadow:var(--tw-inset-shadow),var(--tw-inset-ring-shadow),var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow)}.filter{filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease, var(--default-transition-timing-function));transition-duration:var(--tw-duration, var(--default-transition-duration))}}:root{--canvas: #f8f7f3;--paper: #f0eee7;--ink: #373d32;--muted: #8d8e80;--burgundy: #985140;--forest: #394a3b;--sage: #e6e9dc;--line: #e5e2d8;--serif: "Noto Serif SC","Songti SC","STSong",SimSun,serif;--sans: Inter,"PingFang SC","Microsoft YaHei",sans-serif;color-scheme:light;font-synthesis:none}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:var(--canvas);color:var(--ink);font-family:var(--sans);font-size:13px;-webkit-font-smoothing:antialiased}button,input,textarea,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--burgundy);outline-offset:4px}a{color:inherit}button{touch-action:manipulation}img,svg{vertical-align:middle}::selection{background:#dbc7a8;color:#343b2e}::-webkit-scrollbar{width:7px;height:7px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#c9c8b8;border-radius:10px}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}button{border:0;background:none;color:inherit}h1,h2,h3,h4,p{margin:0}a{text-underline-offset:4px}.app-shell{min-height:100dvh;overflow-x:clip}.skip-link{position:fixed;top:12px;left:240px;z-index:300;background:var(--forest);color:#fff;padding:12px 20px;border-radius:4px;transform:translateY(-150%);transition:transform .2s}.skip-link:focus{transform:translateY(0)}.sidebar{position:fixed;inset:0 auto 0 0;z-index:40;width:222px;background:#eeece4;border-right:1px solid #e1dfd4;display:flex;flex-direction:column;padding:31px 19px 0;overflow-y:auto;scrollbar-width:thin}.brand{display:flex;align-items:center;gap:10px;width:100%;text-align:left;color:#92513e;padding:0 4px}.brand>svg{width:39px;flex-shrink:0}.brand>span{display:flex;flex-direction:column;gap:8px}.brand strong{font-family:var(--serif);font-size:18px;letter-spacing:2px;font-weight:600;white-space:nowrap}.brand small{font-size:8px;letter-spacing:1.75px;color:#9b826e;white-space:nowrap}.side-rule{height:1px;background:#dedacf;margin:25px 3px 24px}.nav-group-title{font-size:10px;letter-spacing:1.6px;color:#a19d8b;padding:0 12px;margin-bottom:16px}.side-nav{display:flex;flex-direction:column;gap:7px}.side-nav>button{min-height:46px;width:100%;display:flex;align-items:center;gap:12px;padding:0 13px;color:#7f8373;font-size:12px;border-radius:5px;transition:background .25s,color .25s}.side-nav>button>svg{stroke-width:1.5;flex-shrink:0}.side-nav>button>small{margin-left:auto;font-size:10px;letter-spacing:1px;color:#a19d85}.side-nav>button.active{background:#dfe4d4;color:#526044;font-weight:500}.side-nav>button:hover{background:#e4e4d8;color:#536246}.nav-active-dot{width:4px;height:4px;border-radius:50%;background:transparent;display:block;margin-left:auto}.side-nav>button.active .nav-active-dot{background:#6d7c55}.ai-mini{font-size:8px;letter-spacing:.5px;padding:2px 4px;line-height:1.3;border:1px solid #d7c2a2;color:#a58b61;border-radius:2px;margin-left:auto}.nav-divider{height:1px;background:#dedacf;margin:23px 10px}.nav-group-title.second{margin-bottom:10px}.secondary-nav{gap:2px}.secondary-nav>button{min-height:43px;font-size:11px}.sidebar-bottom{margin-top:auto;padding-top:43px}.side-note{text-align:center;padding:16px 0 26px;color:#969480}.side-note-arch{margin:auto auto 12px;color:#a9a38c;opacity:.75}.side-note p{font-family:var(--serif);font-size:13px;letter-spacing:1px;color:#85846f;margin-bottom:10px}.side-note>span{font-size:9px;color:#a9a48f;letter-spacing:.4px;white-space:nowrap}.guide-link{width:100%;display:flex;align-items:center;gap:10px;padding:14px 10px;border-top:1px solid #dedacf;color:#8e927e;font-size:10px;transition:color .2s}.guide-link:hover{color:var(--burgundy)}.guide-link>svg:first-child{stroke-width:1.5}.guide-link>svg:last-child{margin-left:auto}.side-user{display:flex;align-items:center;width:calc(100% + 38px);margin:0 -19px;padding:18px 22px;background:#e8e6dd;border-top:1px solid #dedacf;gap:10px;text-align:left;transition:background .2s}.side-user:hover{background:#dfdfd2}.avatar{width:32px;height:32px;border-radius:50%;background:#d8ddc8;border:1px solid #c3ccb0;color:#73815c;display:grid;place-items:center;font-family:var(--serif);font-size:14px;flex-shrink:0}.side-user>span:nth-child(2){display:flex;flex-direction:column;gap:6px;min-width:0}.side-user 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.2s,background .2s}.search-trigger:hover{border-color:#ccc5b2;background:#eae9df}.search-trigger>svg{stroke-width:1.5}.search-trigger kbd{font-family:var(--sans);font-size:8px;border:1px solid #ddd9cb;border-radius:3px;padding:2px 4px;color:#ada995;margin-left:24px;line-height:1.2}.top-icon{color:#92947f;display:grid;place-items:center;width:28px;min-height:44px;transition:color .2s}.top-icon:hover{color:var(--burgundy)}.top-icon>svg{stroke-width:1.4}.top-avatar{width:32px;height:32px;border-radius:50%;border:1px solid #d0d6c0;outline:4px solid #f3f2ec;background:#dce1d1;color:#7a8563;font-family:var(--serif);font-size:13px;transition:background .2s}.top-avatar:hover{background:#ccd5bb}.mobile-menu{display:none}.page-content{max-width:1570px;padding:0 42px;margin:0 auto}.welcome-row{display:flex;justify-content:space-between;align-items:center;gap:25px;padding:29px 0 25px}.small-kicker{font-size:10px;letter-spacing:1.8px;color:#a1977f;display:block;margin-bottom:10px}.welcome-row h1{font-family:var(--serif);font-size:25px;font-weight:500;letter-spacing:1px;line-height:1.5}.welcome-row h1>span{color:#b88968}.welcome-row p{font-size:11px;letter-spacing:.5px;color:#999c89;margin-top:10px}.learning-pill{display:flex;align-items:center;gap:9px;border:1px solid #e5e1d4;border-radius:20px;padding:11px 14px;color:#93947f;font-size:10px;white-space:nowrap;transition:background .2s}.learning-pill:hover{background:#eeeee2}.learning-pill>svg{margin-left:4px;color:#acaa95}.status-dot{width:5px;height:5px;display:block;background:#9aa97b;border-radius:50%;box-shadow:0 0 0 3px #e9eddf}.hero{position:relative;min-height:394px;border-radius:8px;overflow:hidden;background:#4c5347;color:#fffdf4;isolation:isolate;box-shadow:0 5px 15px #4e4c3105}.hero-image,.hero-shade{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}.hero-image{object-position:65% 51%;filter:saturate(.63) brightness(.84);transition:transform 1.6s cubic-bezier(.2,.7,.2,1)}.hero:hover .hero-image{transform:scale(1.025)}.hero-shade{z-index:-1;background:linear-gradient(90deg,#253a30ed,#2a3e32d6 28%,#34443873 55%,#23342b18),linear-gradient(0deg,#20362bd9 0%,transparent 37%)}.hero-text{position:relative;padding:34px 41px 85px;width:70%;z-index:1}.hero-eyebrow{display:flex;align-items:center;gap:9px;font-size:10px;letter-spacing:2px;color:#d4c4a0;margin-bottom:18px}.hero-eyebrow>span{height:1px;width:24px;background:#c6ad7e;display:inline-block}.hero-text h2{font-family:var(--serif);font-weight:400;letter-spacing:4px;font-size:43px;line-height:1.49;color:#fffdf6;text-wrap:balance}.hero-text h2>span{color:#d2bc8e}.hero-text>p{font-size:11px;line-height:1.95;letter-spacing:.5px;color:#d4d8c6;margin-top:15px;font-weight:300}.hero-buttons{display:flex;align-items:center;gap:23px;margin-top:24px}.button{display:inline-flex;align-items:center;justify-content:center;gap:28px;min-height:42px;border-radius:4px;padding:0 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#b9bda16e;display:grid;place-items:center;border-radius:50%;background:#faf4dc0a}.hero-video>span>svg{margin-left:2px}.hero-caption{position:absolute;right:23px;bottom:84px;display:flex;align-items:center;gap:7px;font-size:9px;color:#efebd4;letter-spacing:.5px;text-shadow:0 1px 7px #172d20}.hero-caption>i{height:9px;width:1px;background:#d9d9bf70;display:block;margin:0 2px}.hero-serial{position:absolute;right:25px;top:30px;font-size:8px;letter-spacing:1.8px;color:#e6ddbdc2;writing-mode:vertical-rl}.hero-bottom{position:absolute;bottom:0;left:0;right:0;min-height:65px;display:flex;align-items:center;gap:30px;padding:0 41px;border-top:1px solid #e1e8d52b;background:#20392d32;backdrop-filter:blur(5px)}.hero-bottom>div{display:flex;align-items:center;gap:11px;color:#d4d5be;min-height:24px}.hero-bottom>div+div{border-left:1px solid #dce2c52e;padding-left:29px}.hero-bottom 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