:root{color-scheme:light;--canvas: #f4f6f4;--paper: #ffffff;--ink: #24342f;--muted: #61716b;--line: #dce3de;--primary: #1e5145;--primary-strong: #153e34;--primary-soft: #e7efeb;--sidebar-surface: #eef2ef;--control-border: #829589;--surface-hover: #edf2ee;--focus-ring: #598676;--scrollbar-thumb: #899b91;--scrollbar-track: #eef2ef;--teal: #14877e;--teal-soft: #e5f5f2;--warning: #b86700;--warning-soft: #fff3dd;--danger: #b4233d;--danger-soft: #fdecef;--shadow-float: 0 12px 32px rgba(25, 46, 36, .12);--font-display: "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;--font-body: "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;--font-utility: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;--radius-sm: 8px;--radius: 12px;--radius-lg: 14px;--radius-pill: 999px;--sidebar-width: 240px;--sidebar-rail-width: 76px;--z-dropdown: 200;--z-popover: 300;--z-header: 400;--z-backdrop: 500;--z-dialog: 600;--z-sheet: 700;--z-command: 800;--z-toast: 900;font-family:var(--font-body);color:var(--ink);background:var(--canvas);font-synthesis:none;line-height:1.65;text-rendering:optimizeLegibility;scrollbar-width:thin;scrollbar-color:var(--scrollbar-thumb) var(--scrollbar-track)}*{box-sizing:border-box}html{min-width:320px;background:var(--canvas);scroll-padding-top:20px}body{min-width:320px;min-height:100vh;margin:0;background:var(--canvas)}body,button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button:not(:disabled),a[href],select:not(:disabled),input[type=range]:not(:disabled){cursor:pointer}button:disabled,input:disabled,textarea:disabled,select:disabled{cursor:not-allowed}a{color:inherit}svg{width:1.2em;height:1.2em;stroke-width:1.8}::selection{color:var(--ink);background:#cfe1d6}input,textarea{caret-color:var(--primary)}*::-webkit-scrollbar{width:11px;height:11px}*::-webkit-scrollbar-track{background:var(--scrollbar-track)}*::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border:3px solid var(--scrollbar-track);border-radius:999px}*::-webkit-scrollbar-thumb:hover{background:#6d8376}*::-webkit-scrollbar-thumb:active{background:#516b5d}:focus-visible{outline:2px solid var(--focus-ring);outline-offset:3px}.visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}.spin{animation:spin .9s linear infinite}.spinner{display:inline-block;width:22px;height:22px;border:2px solid var(--line);border-top-color:var(--primary);border-radius:50%;animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.button{min-height:44px;padding:0 17px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:var(--radius-sm);font-weight:700;font-size:14px;line-height:1;text-decoration:none;transition:border-color .16s,background .16s,color .16s,transform .12s}.button:active:not(:disabled){transform:translateY(1px)}.button:disabled{opacity:.48}.button__content{min-width:0;display:inline-flex;align-items:center;justify-content:center;gap:8px}.button--primary.button--solid{color:#fff;background:var(--primary);border-color:var(--primary)}.button--primary.button--solid:hover{background:var(--primary-strong);border-color:var(--primary-strong)}.button--neutral.button--outline{color:var(--ink);background:var(--paper);border-color:var(--control-border)}.button--neutral.button--outline:hover{border-color:var(--muted);background:var(--surface-hover)}.button--neutral.button--ghost{color:var(--muted);background:transparent}.button--neutral.button--ghost:hover{color:var(--ink);background:var(--surface-hover)}.button--danger.button--solid{color:#fff;background:var(--danger);border-color:var(--danger)}.button--full{width:100%}.icon-button{width:40px;height:40px;padding:0;display:inline-grid;place-items:center;color:var(--muted);background:transparent;border:0;border-radius:var(--radius-sm)}.icon-button:hover:not(:disabled){color:var(--ink);background:var(--surface-hover)}.icon-button svg{width:19px;height:19px}.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:700;text-decoration:none}.text-link:hover{text-decoration:underline}.field{display:grid;gap:7px}.field>label{font-size:14px;font-weight:700}.field__message{min-height:18px;font-size:12px;line-height:1.5}.field__hint{color:var(--muted)}.field__error{color:var(--danger)}.control{width:100%;min-height:44px;padding:9px 12px;color:var(--ink);background:var(--paper);border:1px solid var(--control-border);border-radius:var(--radius-sm);transition:border-color .16s,box-shadow .16s}.control:hover:not(:disabled){border-color:var(--muted)}.control:focus{border-color:var(--primary);outline:2px solid var(--focus-ring);outline-offset:2px}.control[aria-invalid=true]{border-color:var(--danger);box-shadow:0 0 0 3px #b4233d14}.control::placeholder{color:var(--muted)}.control--textarea{min-height:116px;resize:none;line-height:1.65}.resize-none{resize:none}select.control{padding-right:34px}.brand-lockup{display:flex;align-items:center;gap:12px}.brand-mark{flex:0 0 auto;width:36px;height:39px;display:grid;place-items:center;color:#fff;background:var(--primary);border-radius:var(--radius-sm)}.brand-mark svg{width:21px;height:21px}.brand-lockup>div{display:grid;gap:1px}.brand-lockup strong{font-family:var(--font-display);font-size:22px;font-weight:650;letter-spacing:.08em;line-height:1.3}.brand-lockup span:not(.brand-mark){color:var(--muted);font-size:11px}.brand-lockup--light .brand-mark{color:var(--ink);background:#fff}.brand-lockup--light strong,.brand-lockup--light span:not(.brand-mark){color:#fff}.brand-lockup--compact .brand-mark{width:34px;height:34px}.auth-page{min-height:100vh;display:grid;grid-template-columns:minmax(420px,.9fr) minmax(520px,1.1fr)}.auth-story{position:relative;padding:48px clamp(36px,5vw,76px);display:flex;flex-direction:column;justify-content:space-between;color:#fff;background:var(--primary)}.auth-story>*{position:relative;z-index:1}.auth-story__copy{max-width:590px}.eyebrow,.section-index{color:var(--primary);font-family:var(--font-utility);font-size:11px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}.auth-story .eyebrow{color:#b9caff}.auth-story h1{max-width:10em;margin:28px 0 22px;font-family:var(--font-display);font-size:clamp(32px,3.5vw,48px);font-weight:600;line-height:1.5;letter-spacing:-.025em;text-wrap:balance}.auth-story__copy p{max-width:34em;margin:0;color:#d6e4dd;font-size:14px;line-height:1.9}.chalk-flow{width:100%;margin:40px 0 0;padding:24px 0 0;display:grid;grid-template-columns:repeat(5,1fr);list-style:none;border-top:1px solid rgba(255,255,255,.25)}.chalk-flow li{position:relative;display:grid;gap:7px;color:#edf5f0;font-size:13px}.chalk-flow span{color:#c4d8cd;font-family:var(--font-utility);font-size:11px}.auth-panel{padding:40px;display:grid;place-items:center;background:var(--canvas)}.auth-card{width:min(100%,450px);padding:36px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg)}.auth-card h2{margin:0 0 10px;font-family:var(--font-display);font-size:27px;font-weight:650}.auth-card>p{margin:0 0 28px;color:var(--muted);line-height:1.7}.auth-card form{display:grid;gap:13px}.password-field{position:relative}.password-toggle{position:absolute;width:40px;height:40px;right:2px;top:29px;display:grid;place-items:center;color:var(--muted);background:transparent;border:0;border-radius:var(--radius-sm)}.password-toggle:hover{color:var(--ink)}.auth-switch{margin-top:24px;color:var(--muted);font-size:14px;text-align:center}.auth-switch a{margin-left:5px;color:var(--primary);font-weight:700;text-decoration:none}.auth-switch a:hover{text-decoration:underline}.security-note{margin-top:28px;padding-top:20px;display:flex;align-items:flex-start;gap:9px;color:var(--muted);font-size:12px;line-height:1.6;border-top:1px solid var(--line)}.security-note svg{flex:0 0 auto;margin-top:1px;color:var(--teal)}.form-alert{padding:12px 14px;margin-bottom:14px;color:#8f1930;background:var(--danger-soft);border:1px solid #f4cbd3;border-radius:var(--radius-sm);font-size:13px;line-height:1.55}.app-layout{min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;z-index:100;width:var(--sidebar-width);padding:28px 18px 20px;display:flex;flex-direction:column;background:var(--sidebar-surface);border-right:1px solid var(--line);transition:width .2s ease}.sidebar-top{display:flex;align-items:center;justify-content:space-between;gap:8px}.sidebar-toggle{flex:0 0 auto}.primary-nav{margin-top:38px;display:grid;gap:7px}.nav-label{padding:0 12px 7px;color:var(--muted);font-size:11px}.nav-link{min-height:44px;padding:0 12px;display:flex;align-items:center;gap:11px;color:var(--muted);border-radius:var(--radius-sm);font-size:14px;font-weight:700;text-decoration:none}.nav-link:hover{color:var(--ink);background:#e2e9e4}.nav-link.is-active{color:var(--primary);background:var(--paper)}.sidebar-note{margin-top:auto;padding:15px;background:#f5f7fa;border:1px solid var(--line);border-radius:var(--radius)}.sidebar-note>span{color:var(--teal);font-family:var(--font-utility);font-size:10px;font-weight:800;letter-spacing:.08em}.sidebar-note p{margin:7px 0 0;color:var(--muted);font-size:11px;line-height:1.65}.account-panel{margin-top:auto;padding:12px 4px;display:grid;grid-template-columns:36px 1fr 40px;align-items:center;gap:9px;border-top:1px solid var(--line)}.avatar{width:36px;height:36px;display:grid;place-items:center;color:var(--primary);background:var(--paper);border:1px solid var(--line);border-radius:50%;font-weight:650}.account-panel>div{min-width:0;display:grid}.account-panel strong{overflow:hidden;font-size:13px;text-overflow:ellipsis;white-space:nowrap}.account-panel div span{color:var(--muted);font-size:11px}.sidebar.is-collapsed{width:var(--sidebar-rail-width);padding-inline:12px;align-items:center}.sidebar.is-collapsed .sidebar-top{flex-direction:column;gap:16px}.sidebar.is-collapsed .primary-nav{width:100%;margin-top:26px}.sidebar.is-collapsed .nav-link{justify-content:center;padding:0}.sidebar.is-collapsed .sidebar-note{display:none}.sidebar.is-collapsed .account-panel{display:flex;flex-direction:column;gap:8px;align-items:center;padding:12px 0 0}.sidebar.is-collapsed .nav-link,.sidebar.is-collapsed .sidebar-toggle{position:relative}.sidebar.is-collapsed [data-tooltip]:hover:after,.sidebar.is-collapsed [data-tooltip]:focus-visible:after{content:attr(data-tooltip);position:absolute;top:50%;left:calc(100% + 12px);z-index:101;transform:translateY(-50%);min-width:max-content;padding:7px 10px;color:#fff;background:var(--ink);border-radius:7px;font-size:12px;font-weight:600;box-shadow:var(--shadow-float);pointer-events:none}.app-main{min-height:100vh;margin-left:var(--sidebar-width);transition:margin-left .2s ease}.app-layout.is-sidebar-collapsed .app-main{margin-left:var(--sidebar-rail-width)}.mobile-header{display:none}.page{width:min(100%,1500px);min-height:100vh;margin:0 auto;padding:34px clamp(24px,4vw,58px) 70px}.dashboard-heading{padding-bottom:26px;border-bottom:1px solid var(--line)}.dashboard-heading h1{margin:0;font-family:var(--font-display);font-size:28px;font-weight:650;letter-spacing:-.025em}.dashboard-heading p{margin:5px 0 0;color:var(--muted);font-size:13px}.dashboard-section{margin-top:34px}.dashboard-page>.dashboard-section:first-of-type{margin-top:28px}.dashboard-section--compact{margin-top:0;padding:24px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg)}.section-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}.section-heading>div:first-child{min-width:0}.section-heading h2,.workspace-panel__header h2{margin:0;font-family:var(--font-display);font-size:19px;font-weight:650}.section-heading p{margin:7px 0 0;color:var(--muted);font-size:14px}.section-heading--page h2{font-size:19px}.section-meta{flex:0 0 auto;color:var(--muted);font-size:12px}.tool-grid{margin-top:22px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.tool-card{position:relative;min-height:142px;padding:21px;display:grid;grid-template-columns:28px minmax(0,1fr);align-content:start;gap:10px 14px;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);text-decoration:none;transition:border-color .16s,background .16s}.tool-card:hover{border-color:var(--focus-ring);background:#fcfdfc}.tool-card__icon{width:28px;height:28px;display:grid;place-items:center;color:var(--primary)}.tool-card__icon svg{width:23px;height:23px}.tool-card h3{max-width:calc(100% - 78px);margin:2px 0 7px;font-size:15px;font-weight:650;line-height:1.6}.tool-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}.tool-card__action{grid-column:2;display:inline-flex;align-items:center;gap:5px;color:var(--primary);font-size:12px;font-weight:600}.tool-card__action svg{transition:transform .18s}.tool-card:hover .tool-card__action svg{transform:translate(3px)}.tool-price-badge{flex:0 0 auto;display:inline-flex;align-items:center;min-height:24px;padding:3px 7px;color:var(--muted);background:var(--canvas);border:1px solid var(--line);border-radius:5px;font-size:11px;font-weight:500;line-height:1.2;white-space:nowrap}.tool-price-badge--corner{position:absolute;top:18px;right:18px}.dashboard-columns{margin-top:30px;display:grid;grid-template-columns:1.25fr .75fr;gap:18px;align-items:start}.recent-list{margin-top:18px;display:grid}.recent-row{min-height:62px;display:grid;grid-template-columns:12px 1fr auto;align-items:center;gap:12px;text-decoration:none;border-top:1px solid var(--line)}.recent-row:hover strong{color:var(--primary)}.recent-row>div{display:grid;gap:4px}.recent-row strong{font-size:14px}.recent-row div span,.recent-row time{color:var(--muted);font-size:11px}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--muted)}.status-dot--queued,.status-dot--processing{background:var(--primary);box-shadow:0 0 0 4px var(--primary-soft)}.status-dot--completed{background:var(--teal);box-shadow:0 0 0 4px var(--teal-soft)}.status-dot--failed{background:var(--danger);box-shadow:0 0 0 4px var(--danger-soft)}.status-dot--cancelled{background:#8793a5;box-shadow:0 0 0 4px #edf0f4}.empty-inline,.inline-loading{min-height:104px;display:flex;align-items:center;gap:13px;color:var(--muted)}.empty-inline svg{color:#9da9bb}.empty-inline div{display:grid;gap:3px}.empty-inline strong{color:var(--ink)}.empty-inline span{font-size:12px}.roadmap-panel{background:var(--primary-soft);border-color:var(--line)}.roadmap-panel>p{color:var(--muted);font-size:13px;line-height:1.8}.planned-group{padding:18px 0;border-top:1px solid #d3ddf6}.planned-group:first-of-type{margin-top:14px}.planned-group>div:first-child{display:flex;align-items:baseline;justify-content:space-between;gap:12px}.planned-group strong{font-size:14px}.planned-group div>span{color:var(--muted);font-size:11px}.planned-tags{margin-top:10px;display:flex;flex-wrap:wrap;gap:6px}.planned-tags span{padding:5px 8px;color:#586885;background:#ffffffa8;border-radius:6px;font-size:10px}.breadcrumbs{margin-bottom:24px;display:flex;align-items:center;gap:9px;color:var(--muted);font-size:12px}.breadcrumbs a{display:inline-flex;align-items:center;gap:5px;color:var(--primary);font-weight:700;text-decoration:none}.breadcrumbs a:hover{text-decoration:underline}.tool-header{display:flex;align-items:flex-start;gap:18px}.tool-header__icon{flex:0 0 auto;width:46px;height:46px;display:grid;place-items:center;color:var(--primary);background:var(--primary-soft);border-radius:var(--radius-sm)}.tool-header__icon svg{width:26px;height:26px}.tool-header__copy{min-width:0}.tool-header__title-row{display:flex;align-items:baseline;flex-wrap:wrap;gap:8px 14px}.tool-header__title-row .tool-price-badge{align-self:center}.tool-header h1,.page-header h1{margin:0 0 8px;font-family:var(--font-display);font-size:clamp(25px,2.5vw,32px);font-weight:650;line-height:1.4}.tool-header p,.page-header p{max-width:720px;margin:0;color:var(--muted);line-height:1.7}.tool-deliverables{margin:24px 0 18px;padding:15px 18px;display:flex;align-items:center;flex-wrap:wrap;gap:10px 22px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius)}.tool-deliverables>span{margin-right:3px;color:var(--muted);font-size:11px;font-weight:700;letter-spacing:.08em}.tool-deliverables>div{display:inline-flex;align-items:baseline;gap:7px;font-size:12px;font-weight:700}.tool-deliverables b{color:var(--primary);font-family:var(--font-utility);font-size:11px}.result-panel>.progress-rail,.result-panel>.study-progress{margin:20px 0 0}.progress-rail{margin:30px 0 20px;padding:19px 22px;display:grid;grid-template-columns:repeat(5,1fr);background:var(--canvas);border:1px solid var(--line);border-radius:var(--radius)}.progress-step{position:relative;display:flex;align-items:center;gap:8px;color:#8793a5;font-size:11px;font-weight:700}.progress-step:not(:last-child):after{content:"";position:absolute;height:1px;top:50%;left:31px;right:12px;background:#cfd8e5}.progress-step__dot{position:relative;z-index:1;width:24px;height:24px;display:grid;place-items:center;background:#fff;border:1px solid #cbd4e1;border-radius:50%}.progress-step__dot svg{width:13px;height:13px}.progress-step.is-complete{color:var(--teal)}.progress-step.is-complete .progress-step__dot{color:#fff;background:var(--teal);border-color:var(--teal)}.progress-step.is-complete:after{background:#7abbb5}.progress-step.is-current{color:var(--primary)}.progress-step.is-current .progress-step__dot{color:var(--primary);background:#fff;border-color:var(--primary)}.study-progress{margin:26px 0 20px;padding:21px 23px;background:var(--canvas);border:1px solid var(--line);border-radius:var(--radius-lg)}.study-progress__head{display:flex;align-items:center;justify-content:space-between;gap:16px}.study-progress__head>div{display:grid;gap:3px}.study-progress__head span:first-child{color:var(--muted);font-size:11px;font-weight:700;letter-spacing:.08em}.study-progress__head strong{font-family:var(--font-display);font-size:20px}.study-progress__time{white-space:nowrap;color:var(--primary);font-family:var(--font-utility);font-size:12px}.study-progress ol{margin:21px 0 0;padding:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;list-style:none}.study-progress li{min-width:0;display:flex;align-items:flex-start;gap:9px;color:#7d8a9e}.study-progress__dot{flex:0 0 auto;width:24px;height:24px;display:grid;place-items:center;color:#8796aa;background:#fff;border:1px solid #cbd6e4;border-radius:50%}.study-progress__dot svg{width:13px;height:13px}.study-progress li>div{display:grid;gap:2px}.study-progress li strong{font-size:12px;line-height:1.35}.study-progress li small{font-size:10px;line-height:1.45}.study-progress li.is-done{color:var(--teal)}.study-progress li.is-done .study-progress__dot{color:#fff;background:var(--teal);border-color:var(--teal)}.study-progress li.is-current{color:var(--primary)}.study-progress li.is-current .study-progress__dot{color:var(--primary);border-color:var(--primary)}.study-progress>p{margin:17px 0 0;color:var(--muted);font-size:11px;line-height:1.6}.workspace-grid{display:grid;grid-template-columns:minmax(360px,430px) minmax(0,1fr);gap:18px;align-items:start}.workspace-grid--study-setup{grid-template-columns:minmax(0,560px) minmax(0,1fr)}.workspace-grid--study-result,.workspace-grid--full-result{grid-template-columns:minmax(0,1fr)}.workspace-form,.result-panel{min-width:0;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg)}.workspace-form{padding:24px 24px 0}.workspace-form .control{font-size:14px}.workspace-form .field>label,.workspace-form .choice-field>legend{font-size:13px}.result-panel{min-height:650px;padding:24px}.workspace-panel__header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding-bottom:19px;border-bottom:1px solid var(--line)}.result-panel__tools{display:flex;align-items:center;flex-wrap:wrap;justify-content:flex-end;gap:8px}.form-fields{padding:8px 0 4px;display:grid;gap:6px}.field-group-item{min-width:0}.form-group-title{margin:23px 0 15px;padding:0;color:var(--ink);font-size:13px;line-height:1.4}.field-group-item:not(:first-child) .form-group-title{margin-top:18px;padding-top:3px;padding-bottom:3px;border-top:1px solid var(--line);border-left:0;padding-left:0}.workspace-grid--study-setup .workspace-form{padding-top:29px}.workspace-grid--study-setup .upload-block{margin-top:12px;padding-top:22px}.workspace-grid--study-setup .result-panel{position:sticky;top:20px}.workspace-grid--study-setup .sticky-actions{position:static;margin-top:18px}.workspace-grid--study-setup .form-fields{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:14px}.workspace-grid--study-setup .form-group-title{grid-column:1 / -1;margin:23px 0 7px;padding-left:12px;border-left:3px solid var(--primary);font-family:var(--font-display);font-size:18px}.workspace-grid--study-setup .field-group-item--topic,.workspace-grid--study-setup .field-group-item--depth,.workspace-grid--study-setup .field-group-item--requirements{grid-column:1 / -1}.choice-field{min-width:0;margin:0;padding:0;border:0}.choice-field legend{margin-bottom:9px;font-size:14px;font-weight:700}.choice-field__options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.workspace-grid--study-setup .field-group-item--focus .choice-field__options{grid-template-columns:repeat(3,minmax(0,1fr))}.choice-field__option{position:relative;min-width:0;min-height:44px;display:grid;place-items:center;color:var(--ink);background:var(--paper);border:1px solid var(--control-border);border-radius:var(--radius-sm);font-size:13px;font-weight:600;text-align:center;cursor:pointer;transition:background .16s,border-color .16s,color .16s}.choice-field__option:hover{border-color:var(--muted);background:var(--surface-hover)}.choice-field__option:has(input:checked){color:var(--primary);background:var(--primary-soft);border-color:var(--primary)}.choice-field__option:focus-within{outline:2px solid var(--focus-ring);outline-offset:2px}.choice-field__option input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:inherit}.choice-field:disabled .choice-field__option{opacity:.55;cursor:not-allowed}.switch-field{min-height:80px;padding:16px 17px;display:flex;align-items:center;justify-content:space-between;gap:16px;background:var(--canvas);border:1px solid var(--line);border-radius:var(--radius)}.switch-field>div{min-width:0}.switch-field label{font-size:14px;font-weight:800;cursor:pointer}.switch-field p{margin:4px 0 0;color:var(--muted);font-size:11px;line-height:1.5}.switch-field input{position:relative;flex:0 0 auto;width:48px;height:28px;margin:0;appearance:none;background:#a7b3c3;border:1px solid #95a2b4;border-radius:999px;cursor:pointer;transition:background .16s}.switch-field input:before{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;background:#fff;border-radius:50%;box-shadow:0 1px 3px #1720332e;transition:transform .16s}.switch-field input:checked{background:var(--teal);border-color:var(--teal)}.switch-field input:checked:before{transform:translate(20px)}.switch-field input:focus-visible{outline:2px solid var(--focus-ring);outline-offset:3px}.switch-field input:disabled{opacity:.55;cursor:not-allowed}.source-hint{margin:10px 0 16px;padding:10px 12px;color:var(--muted);background:var(--canvas);border-radius:var(--radius-sm);font-size:12px;line-height:1.6}.range-control{min-height:50px;display:grid;grid-template-columns:1fr 58px;align-items:center;gap:14px}.range-control input{width:100%;accent-color:var(--primary)}.range-control output{color:var(--primary);font-family:var(--font-utility);font-size:18px;font-weight:800;text-align:center}.range-control output span{color:var(--muted);font-size:10px}.upload-block{padding:17px 0;border-top:1px solid var(--line)}.drop-zone{min-height:130px;margin-top:14px;padding:18px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;background:var(--canvas);border:1px dashed var(--control-border);border-radius:var(--radius);transition:border-color .16s,background .16s}.drop-zone.is-dragging{background:var(--primary-soft);border-color:var(--primary)}.drop-zone.is-disabled{opacity:.6}.drop-zone>svg{width:26px;height:26px;color:var(--primary)}.drop-zone>div{display:grid;gap:5px}.drop-zone strong{font-size:13px}.drop-zone span{color:var(--muted);font-size:11px;line-height:1.55}.file-list{margin:12px 0 0;padding:0;display:grid;gap:7px;list-style:none}.file-row{min-height:55px;padding:8px 8px 8px 11px;display:grid;grid-template-columns:22px 1fr 40px;align-items:center;gap:9px;background:#f8fafc;border:1px solid var(--line);border-radius:var(--radius-sm)}.file-row>svg{color:var(--primary)}.file-row>div{min-width:0;display:grid;gap:2px}.question-plan{margin:18px 0 12px;padding:18px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius)}.question-plan__heading,.question-plan__knowledge-title{display:flex;align-items:center;justify-content:space-between;gap:12px}.question-plan__heading h3{margin:3px 0 0;font-size:19px}.question-plan__heading>strong{color:var(--primary);font-size:12px;white-space:nowrap}.question-plan>p{margin:8px 0 16px;color:var(--muted);font-size:12px;line-height:1.6}.question-plan__add{display:grid;gap:7px;font-size:12px;font-weight:700}.question-plan__add>div{display:flex;gap:8px}.question-plan input,.question-plan select{min-width:0;min-height:42px;padding:8px 10px;color:var(--ink);background:var(--paper);border:1px solid var(--control-border);border-radius:var(--radius-sm);font:inherit}.question-plan__add input{flex:1}.question-plan button{min-height:40px;padding:0 11px;color:var(--primary);background:var(--primary-soft);border:0;border-radius:var(--radius-sm);font:inherit;font-size:12px;font-weight:700;cursor:pointer}.question-plan button:disabled{cursor:not-allowed;opacity:.5}.question-plan button:hover:not(:disabled){background:#d5e4da}.question-plan :is(input,select,button):focus-visible{outline:2px solid var(--focus-ring);outline-offset:2px}.question-plan__knowledge{margin-top:15px;padding:15px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--canvas)}.question-plan__knowledge-title{margin-bottom:11px;font-size:13px}.question-plan__knowledge-title button,.question-plan__row>button{color:var(--danger);background:transparent}.question-plan__row{margin-top:9px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:end;gap:8px}.question-plan__row label:first-child{grid-column:1 / -1}.question-plan__row label{min-width:0;display:grid;gap:4px;color:var(--muted);font-size:11px}.question-plan__row input,.question-plan__row select{width:100%;font-size:12px}.question-plan__add-exam{margin-top:12px}.file-row strong{overflow:hidden;font-size:12px;text-overflow:ellipsis;white-space:nowrap}.file-row span{color:var(--muted);font-size:10px}.file-row--error{background:var(--danger-soft);border-color:#f2c9d1}.file-row--error span{color:var(--danger)}.upload-error{margin:-8px 0 12px;color:var(--danger);font-size:12px}.upload-progress{padding:12px;margin-bottom:14px;background:var(--primary-soft);border-radius:var(--radius-sm)}.upload-progress>div{display:flex;justify-content:space-between;color:var(--primary);font-size:12px}.upload-progress progress{width:100%;height:6px;margin-top:8px;accent-color:var(--primary)}.sticky-actions{position:sticky;z-index:100;bottom:0;margin:6px -24px 0;padding:15px 24px;display:flex;align-items:center;justify-content:space-between;gap:12px;background:#fffffff5;border-top:1px solid var(--line);border-radius:0 0 var(--radius-lg) var(--radius-lg);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.sticky-actions>div{display:grid;gap:2px}.sticky-actions strong{font-size:11px}.sticky-actions>div span{color:var(--muted);font-size:10px;line-height:1.5}.sticky-actions>.button{margin-left:auto}.status-badge{padding:6px 9px;color:var(--muted);background:#eef1f5;border-radius:999px;font-size:10px;font-weight:800}.status-badge--queued,.status-badge--processing{color:var(--primary);background:var(--primary-soft)}.status-badge--completed{color:var(--teal);background:var(--teal-soft)}.status-badge--failed{color:var(--danger);background:var(--danger-soft)}.result-empty,.result-working,.result-error{min-height:490px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.result-empty__sheet{width:48px;height:48px;display:grid;place-items:center;color:var(--primary);background:var(--primary-soft);border-radius:var(--radius)}.result-empty h3,.result-working h3,.result-error h3{margin:22px 0 7px;font-family:var(--font-display);font-size:22px}.result-empty p,.result-working p,.result-error p{max-width:410px;margin:0 0 20px;color:var(--muted);font-size:13px;line-height:1.7}.result-preview{width:min(360px,100%);margin:0;padding:14px 17px;display:grid;gap:9px;text-align:left;list-style:none;background:#f7f9fc;border:1px solid var(--line);border-radius:var(--radius)}.result-preview li,.review-checklist li{display:flex;align-items:flex-start;gap:9px;color:#344057;font-size:12px;line-height:1.55}.result-preview svg,.review-checklist svg{flex:0 0 auto;margin-top:2px;color:var(--teal)}.working-orbit{position:relative;width:74px;height:74px;display:grid;place-items:center;color:var(--primary);background:var(--primary-soft);border-radius:50%}.working-orbit:after{content:"";position:absolute;inset:-8px;border:2px solid var(--line);border-top-color:var(--primary);border-radius:50%;animation:spin .9s linear infinite}.notice-banner{margin:18px 0;padding:13px 15px;display:grid;gap:4px;color:#7b4b0c;background:var(--warning-soft);border:1px solid #f0d19e;border-radius:var(--radius-sm);font-size:12px;line-height:1.55}.notice-banner strong{color:var(--warning)}.result-action-error{margin-top:16px}.result-render-loading{min-height:240px;display:flex;align-items:center;justify-content:center;gap:12px;color:var(--muted);font-size:13px}.markdown-result{padding:4px 8px 30px;max-width:840px}.markdown-result h2{margin:22px 0 18px;font-family:var(--font-display);font-size:28px}.markdown-result h3{margin:25px 0 10px;padding-bottom:7px;font-family:var(--font-display);font-size:18px;border-bottom:1px solid var(--line)}.markdown-result h4{margin:20px 0 8px;font-size:15px}.markdown-result p{margin:6px 0;color:#344057;line-height:1.8}.markdown-result ul,.markdown-result ol{margin:9px 0 18px;padding-left:25px;color:#344057;line-height:1.8}.markdown-result li{padding-left:3px;margin:4px 0}.markdown-result li::marker{color:var(--primary)}.markdown-result a{color:var(--primary);text-underline-offset:3px;overflow-wrap:anywhere}.markdown-result blockquote{margin:16px 0;padding:6px 16px;color:var(--muted);background:#f7f9fc;border-left:3px solid var(--line)}.markdown-result code{padding:2px 4px;background:#f1f4f8;border-radius:4px;font-family:var(--font-utility);font-size:.88em}.markdown-result pre{max-width:100%;overflow-x:auto;padding:14px;background:#f1f4f8;border-radius:var(--radius-sm)}.markdown-result pre code{padding:0;background:transparent}.result-table-scroll{max-width:100%;margin:16px 0 20px;overflow-x:auto;scrollbar-gutter:stable}.markdown-result table{width:100%;border-collapse:collapse;font-size:13px;line-height:1.6}.markdown-result th,.markdown-result td{min-width:90px;padding:9px 11px;text-align:left;vertical-align:top;border:1px solid var(--line)}.markdown-result th{background:#f3f6fb;font-weight:700}.markdown-result .katex-display{max-width:100%;overflow-x:auto;overflow-y:hidden;padding:8px 0}.study-report{margin-top:18px;display:grid;grid-template-columns:minmax(135px,175px) minmax(0,1fr);align-items:start;gap:20px}.study-report__nav{position:sticky;top:18px;max-height:min(72vh,720px);overflow-y:auto;scrollbar-gutter:stable}.study-report__nav-label{display:block;margin-bottom:11px;color:var(--muted);font-size:10px;font-weight:800;letter-spacing:.08em}.study-report__nav ol{margin:0;padding:0;list-style:none;border-top:1px solid var(--line)}.study-report__nav a{padding:11px 7px;display:flex;align-items:baseline;gap:8px;color:#52617b;border-bottom:1px solid var(--line);border-radius:4px;font-size:11px;line-height:1.5;text-decoration:none}.study-report__nav a:hover{color:var(--primary);background:var(--primary-soft)}.study-report__nav a span{color:var(--primary);font-family:var(--font-utility);font-size:10px}.study-report__paper{--study-paper: #fefefd;--study-ink: #202d33;--study-strong: #17252c;--study-muted: #66747b;--study-blue: #315e74;--study-heading: #24495d;--study-blue-soft: #edf4f6;--study-amber: #c18b31;--study-amber-soft: #fbf5e8;--study-green: #39705f;--study-green-soft: #eef6f2;--study-red: #a45149;--study-red-soft: #fbf1ef;--study-line: #dce4e6;--study-surface: #f6f8f8;min-width:0;padding:0 0 36px;color:var(--study-ink);background:var(--study-paper);border:1px solid var(--study-line);border-radius:12px;overflow:clip}.study-report__cover{padding:clamp(28px,5vw,64px);background:var(--study-paper);border:0;border-bottom:1px solid var(--study-line);border-radius:0}.study-report__eyebrow{color:var(--study-blue);font-size:11px;font-weight:800;letter-spacing:.06em}.study-report__cover h2{margin:22px 0 18px;color:var(--study-strong);font-family:var(--font-display);font-size:clamp(30px,3.7vw,46px);font-weight:600;line-height:1.28;overflow-wrap:anywhere}.study-report__cover p{max-width:650px;margin:0;color:var(--study-muted);font-size:15.5px;line-height:1.86}.study-report__roadmap{margin-top:32px}.study-report__roadmap>span{color:var(--study-muted);font-size:11px;font-weight:700}.study-report__roadmap ol{margin:12px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--study-line);list-style:none}.study-report__roadmap li{position:relative;padding:17px 8px 0 0;display:grid;gap:4px}.study-report__roadmap li:before{position:absolute;content:"";left:0;top:-4px;width:7px;height:7px;border-radius:50%;background:var(--study-blue);box-shadow:0 0 0 4px var(--study-paper)}.study-report__roadmap small{color:#8a601d;font:700 9px var(--font-utility)}.study-report__roadmap strong{font-size:13.5px}.study-report__roadmap li span{color:var(--study-muted);font-size:11px;line-height:1.62}.study-report__meta{margin-top:30px;padding-top:15px;display:flex;flex-wrap:wrap;gap:10px 22px;border-top:1px solid var(--study-line);color:var(--study-muted);font-size:11px}.study-report__meta strong{margin-left:7px;color:var(--study-ink);font-size:12px}.study-report__chapter{scroll-margin-top:30px}.study-report__chapter-heading{padding:34px clamp(24px,5vw,64px);display:grid;grid-template-columns:62px minmax(0,1fr);gap:24px;background:var(--study-blue-soft);border-block:1px solid var(--study-line)}.study-report__chapter-heading>span{padding-top:6px;color:var(--study-blue);font:700 28px/1.4 var(--font-utility)}.study-report__chapter-heading>span small{font-size:9px;white-space:nowrap}.study-report__chapter-heading>div{padding-left:24px;border-left:1px solid #bdcdd4}.study-report__chapter-heading h3{margin:10px 0 12px;color:var(--study-strong);font:600 clamp(26px,3vw,40px)/1.42 var(--font-display)}.study-report__chapter-heading strong{font-size:17px}.study-report__chapter-heading p{margin:10px 0 0;color:var(--study-muted);font-size:14px;line-height:1.8}.study-report__cards{display:grid;gap:24px;padding:32px clamp(24px,5vw,64px) 48px}.study-report__cards--glossary{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.study-report__card{min-width:0;padding:24px;background:#fff;border:1px solid var(--study-line);border-radius:10px}.study-report__card-heading{display:flex;align-items:baseline;gap:14px;margin-bottom:12px}.study-report__card-heading>span{flex:0 0 28px;color:var(--study-blue);font:700 16px var(--font-utility)}.study-report__card-heading h4{margin:0;color:var(--study-strong);font-size:21px;line-height:1.42}.study-report__cards--glossary .study-report__card{padding:18px}.study-report__cards--glossary h4{font:600 17px/1.5 var(--font-display)}.study-report__cards--glossary .study-report__card-heading>span{padding:7px 0;text-align:center;font-size:9px;border:1px solid #e9c7bf;border-radius:50%;color:var(--study-red)}.study-report__card--dark{color:var(--study-paper);background:var(--study-heading);border-color:var(--study-heading)}.study-report__card--dark>.study-report__card-heading :is(h4,span),.study-report__card--dark>.markdown-result :is(h2,h3,h4,a){color:inherit}.study-report__card--dark>.markdown-result :is(blockquote,pre,code,.study-knowledge-card){color:var(--study-ink)}.study-report__card--blue{background:var(--study-blue-soft)}.study-report__card--green{background:var(--study-green-soft)}.study-report__card--amber{background:var(--study-amber-soft)}.study-report__card--red{background:var(--study-red-soft)}.study-report__details{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:20px}.study-report__detail{min-width:0;padding:16px 17px;color:var(--study-ink);border:1px solid var(--study-line);border-left:4px solid #7a8b93;border-radius:8px;background:var(--study-surface)}.study-report__detail>strong{color:var(--study-muted);font-size:11px}.study-report__detail--blue{border-color:#cfdee4;border-left-color:var(--study-blue);background:var(--study-blue-soft)}.study-report__detail--green{border-color:#d4e4dc;border-left-color:var(--study-green);background:var(--study-green-soft)}.study-report__detail--amber{grid-column:1 / -1;border-color:#ecdcc0;border-left-color:var(--study-amber);background:var(--study-amber-soft)}.study-report__detail--red{border-left-color:var(--study-red);background:var(--study-red-soft)}.study-report__detail--neutral,.study-report__detail:only-child{grid-column:1 / -1}.study-report__cards--examples .study-report__details,.study-report__cards--practice .study-report__details,.study-report__cards--strategies .study-report__details{grid-template-columns:minmax(0,1fr)}.study-report__cards--practice .study-report__card-heading{border-bottom:1px solid var(--study-line);padding-bottom:14px}.study-report__introduction,.study-report__section{margin-top:24px;padding:24px;background:var(--study-surface);border:1px solid var(--line);border-radius:var(--radius-lg)}.study-report__section{position:relative;scroll-margin-top:24px}.study-report__section-number{position:absolute;top:39px;left:38px;color:#fff;font-family:var(--font-utility);font-size:12px;font-weight:800}.study-report__paper .markdown-result{max-width:none;padding:0;color:inherit;font-size:14.5px;overflow-wrap:anywhere}.study-report__paper .markdown-result :is(p,ul,ol){color:inherit}.study-report__section .markdown-result h3{margin:0 0 24px;padding:14px 18px 14px 48px;color:#fff;background:var(--study-heading);border:0;border-radius:var(--radius);font-family:var(--font-body);font-size:19px;line-height:1.5}.study-report__section .markdown-result h4{margin:24px 0 12px;padding:10px 14px;color:var(--study-heading);background:#e1ecfa;border-radius:var(--radius-sm);font-size:16px}.study-report__paper .markdown-result p{margin:12px 0;line-height:1.85}.study-report__paper .markdown-result li::marker{color:var(--study-blue)}.study-report__paper .study-report__card--dark>.markdown-result li::marker{color:inherit}.study-report__paper .markdown-result blockquote{margin:18px 0;padding:4px 18px;background:var(--paper);border:1px solid #c6d8ee;border-left:3px solid var(--primary);border-radius:var(--radius)}.study-report__paper .markdown-result li{margin-block:10px}.study-knowledge-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr));gap:16px;margin-block:20px}.study-knowledge-card{min-width:0;margin:0;padding:18px;background:var(--paper);border:1px solid #c6d8ee;border-radius:var(--radius)}.study-knowledge-card>div+div{margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}.study-knowledge-card dt{margin-bottom:6px;color:var(--study-heading);font-size:12px;font-weight:700}.study-knowledge-card dd{margin:0;color:#344057;line-height:1.8}@media print{.study-report__section .markdown-result h3,.study-report__section-number{color:var(--ink)}.study-report__section .markdown-result h3{background:transparent;border-bottom:1px solid var(--line)}.study-knowledge-card{break-inside:avoid}}.study-diagram{margin:22px 0 0;overflow:hidden;color:var(--study-ink);background:#fff;border:1px solid var(--study-line);border-radius:12px}.study-diagram__heading{padding:20px 22px 17px;display:grid;grid-template-columns:100px minmax(0,1fr);align-items:baseline;gap:14px;background:var(--study-blue-soft);border-bottom:1px solid var(--study-line)}.study-diagram__heading>span{color:var(--study-blue);font-family:var(--font-utility);font-size:10px;font-weight:800}.study-diagram__heading h5{margin:0;color:var(--study-strong);font:600 17px/1.45 var(--font-display)}.study-diagram__heading p{margin:8px 0 0;color:var(--study-muted);font-size:13px;line-height:1.7}.study-diagram__canvas{padding:18px;background:linear-gradient(#315e7408 1px,transparent 1px),linear-gradient(90deg,#315e7408 1px,transparent 1px);background-size:28px 28px}.study-diagram__canvas--scene{overflow-x:auto;scrollbar-gutter:stable}.study-diagram__canvas--scene svg{min-width:480px}.study-diagram__canvas--right-triangle svg{max-width:560px;margin-inline:auto}.study-diagram__legend{display:grid;justify-items:center;gap:6px;padding:0 8px 16px;font-size:14px}.study-diagram svg{width:100%;height:auto;display:block;color:var(--study-ink);background:transparent;stroke-width:1.5}.study-diagram svg text{fill:currentColor;font-family:var(--font-body);font-size:15px;font-weight:700;stroke:none}.study-diagram__canvas--right-triangle svg text{font-size:19px}.study-diagram__shape--blue{fill:var(--study-blue-soft);stroke:var(--study-blue)}.study-diagram__shape--green{fill:var(--study-green-soft);stroke:var(--study-green)}.study-diagram__shape--amber{fill:var(--study-amber-soft);stroke:var(--study-amber)}.study-diagram__shape--red{fill:var(--study-red-soft);stroke:var(--study-red)}.study-diagram__shape--neutral,.study-diagram__shape--dark{fill:var(--study-surface);stroke:var(--study-ink)}.study-diagram svg .study-diagram__label--blue{fill:var(--study-blue)}.study-diagram svg .study-diagram__label--green{fill:var(--study-green)}.study-diagram svg .study-diagram__label--amber{fill:#8a601d}.study-diagram svg .study-diagram__label--red{fill:var(--study-red)}.study-diagram svg .study-diagram__angle{fill:var(--primary);font-size:13px}.study-diagram figcaption{padding:15px 22px;display:grid;grid-template-columns:auto 1fr;gap:13px;color:var(--study-ink);background:var(--study-blue-soft);border-top:1px solid var(--study-line);font-size:13px;line-height:1.75}.study-diagram figcaption strong{color:var(--study-blue);white-space:nowrap}.review-checklist{margin:2px 0 20px;padding:17px 19px;background:#f5faf9;border:1px solid #cce6e1;border-radius:var(--radius)}.review-checklist h3{margin:0 0 12px;color:#125f59;font-size:13px}.review-checklist ul{margin:0;padding:0;display:grid;gap:8px;list-style:none}.result-actions{padding-top:16px;display:flex;justify-content:flex-end;gap:9px;border-top:1px solid var(--line)}.page-header{display:flex;align-items:flex-start;justify-content:space-between;gap:24px}.history-list{margin-top:28px;overflow:hidden;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg)}.history-row{min-height:78px;padding:0 22px;display:grid;grid-template-columns:8px minmax(180px,1fr) auto 70px;align-items:center;gap:16px;text-decoration:none;border-bottom:1px solid var(--line)}.history-row:last-child{border-bottom:0}.history-row:hover{background:#f8fafc}.history-row__mark{width:6px;height:32px;border-radius:999px;background:#9ba7b8}.history-row__mark.status-dot--processing,.history-row__mark.status-dot--queued{background:var(--primary);box-shadow:none}.history-row__mark.status-dot--completed{background:var(--teal);box-shadow:none}.history-row__mark.status-dot--failed{background:var(--danger);box-shadow:none}.history-row__main{display:grid;gap:5px}.history-row__main strong{font-size:14px}.history-row__main span,.history-row time{color:var(--muted);font-size:11px}.history-row__action{display:inline-flex;align-items:center;justify-content:flex-end;gap:5px;color:var(--primary);font-size:12px;font-weight:800}.state-panel{min-height:220px;margin-top:20px;display:flex;align-items:center;justify-content:center;gap:16px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg)}.state-panel>div{max-width:360px}.state-panel strong{font-size:15px}.state-panel p{margin:5px 0 13px;color:var(--muted);font-size:12px}.boot-screen{min-height:100vh;display:grid;place-content:center;justify-items:center;gap:14px;color:var(--muted)}.route-error{min-height:430px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.route-error>span{color:#a7b2c2;font-family:var(--font-utility);font-size:12px;letter-spacing:.2em}.route-error h1{margin:10px 0;font-family:var(--font-display);font-size:36px}.route-error p{margin:0 0 24px;color:var(--muted)}.standalone-error{min-height:100vh;padding:40px;background:var(--canvas)}.toast-viewport{position:fixed;z-index:var(--z-toast);top:18px;right:18px;width:min(390px,calc(100vw - 36px));display:grid;gap:9px;pointer-events:none}.toast{min-height:54px;padding:10px 8px 10px 14px;display:grid;grid-template-columns:22px 1fr 40px;align-items:center;gap:9px;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-left:4px solid var(--primary);border-radius:var(--radius);box-shadow:var(--shadow-float);pointer-events:auto}.toast>svg{color:var(--primary)}.toast span{font-size:13px;line-height:1.5}.toast--success{border-left-color:var(--teal)}.toast--success>svg{color:var(--teal)}.toast--error{border-left-color:var(--danger)}.toast--error>svg{color:var(--danger)}.dialog-overlay{position:fixed;inset:0;z-index:var(--z-backdrop);background:#17203375;animation:fade-in .18s ease-out}.nav-drawer{position:fixed;inset:0 auto 0 0;z-index:var(--z-sheet);width:min(310px,88vw);padding:28px 18px 20px;display:flex;flex-direction:column;background:#fff;box-shadow:var(--shadow-float);animation:drawer-in .22s ease-out}.drawer-close{position:absolute;top:12px;right:12px}@keyframes page-in{0%{opacity:0;transform:translateY(7px)}to{opacity:1;transform:translateY(0)}}@keyframes fade-in{0%{opacity:0}}@keyframes drawer-in{0%{transform:translate(-100%)}}@media(max-width:1180px){.workspace-grid{grid-template-columns:minmax(330px,390px) minmax(0,1fr)}.workspace-grid--study-setup{grid-template-columns:minmax(0,500px) minmax(0,1fr)}.workspace-grid--study-result,.workspace-grid--full-result{grid-template-columns:minmax(0,1fr)}.sticky-actions{align-items:stretch;flex-direction:column}}@media(max-width:960px){.sidebar{display:none}.mobile-header{position:sticky;top:0;z-index:var(--z-header);height:62px;padding:0 18px;display:flex;align-items:center;justify-content:space-between;background:var(--paper);border-bottom:1px solid var(--line)}.app-main,.app-layout.is-sidebar-collapsed .app-main{margin-left:0}.page{min-height:auto;padding:26px 20px 60px}.workspace-grid{grid-template-columns:1fr}.workspace-grid--study-setup{grid-template-columns:minmax(0,1fr)}.workspace-grid--study-setup .result-panel{position:static}.result-panel{min-height:520px}.sticky-actions{position:static}}@media(max-width:760px){.workspace-grid--study-setup .form-fields{grid-template-columns:minmax(0,1fr)}.auth-page{grid-template-columns:1fr}.auth-story{min-height:360px;padding:28px 24px}.auth-story h1{margin-top:24px;font-size:32px}.auth-story__copy p{font-size:14px}.auth-panel{padding:24px 16px 40px}.auth-card{padding:28px 22px;border-radius:var(--radius);box-shadow:none}.chalk-flow{margin-top:28px}.chalk-flow li{font-size:10px}.tool-grid,.dashboard-columns{grid-template-columns:1fr}.tool-card{min-height:132px}.dashboard-columns{gap:14px}.progress-rail{grid-template-columns:repeat(5,minmax(0,1fr))}.progress-step{min-width:0;align-items:center;flex-direction:column;gap:6px;text-align:center;font-size:10px;line-height:1.25}.progress-step:not(:last-child):after{top:12px;left:calc(50% + 12px);right:calc(-50% + 12px)}.study-progress ol{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px 9px}.study-report{min-width:0;grid-template-columns:minmax(0,1fr);gap:14px}.study-report__nav{min-width:0;position:static;max-height:none;overflow:hidden}.study-report__nav ol{padding-bottom:8px;display:flex;overflow-x:auto;scrollbar-gutter:stable}.study-report__nav li{flex:0 0 145px}.study-report__nav a{min-height:58px;padding-inline:9px}.study-diagram svg text{font-size:20px}.study-diagram svg .study-diagram__angle{font-size:17px}.workspace-form,.result-panel{border-radius:var(--radius)}.drop-zone{grid-template-columns:auto 1fr}.drop-zone .button{grid-column:1 / -1;width:100%}.history-row{padding:14px 16px;grid-template-columns:7px 1fr auto}.history-row time{grid-column:2}.history-row__action{grid-column:3;grid-row:1 / 3}.page-header{align-items:stretch;flex-direction:column}}@media(max-width:440px){.page{padding-inline:14px}.auth-story{min-height:330px}.study-progress{padding:18px 16px}.study-progress ol{grid-template-columns:repeat(2,minmax(0,1fr))}.study-progress__head{align-items:flex-start;flex-direction:column}.study-report__paper{padding-inline:0}.study-report__cover{padding:24px 20px}.study-report__introduction,.study-report__section{padding:16px}.study-report__section-number{top:31px;left:30px}.study-report__chapter-heading{padding:24px 18px;grid-template-columns:32px minmax(0,1fr);gap:14px}.study-report__chapter-heading>span{font-size:20px}.study-report__chapter-heading>div{padding-left:14px}.study-report__chapter-heading strong{font-size:15px}.study-report__cards{padding:22px 16px 32px;gap:16px}.study-report__cards--glossary,.study-report__details{grid-template-columns:minmax(0,1fr)}.study-report__card{padding:18px}.study-report__card-heading h4{font-size:18px}.study-report__roadmap ol{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:20px;border:0}.study-report__roadmap li{border-top:1px solid var(--study-line)}.study-diagram__heading{padding:16px;grid-template-columns:minmax(0,1fr);gap:8px}.study-diagram__canvas{padding:8px}.study-diagram figcaption{padding:12px 16px;grid-template-columns:minmax(0,1fr);gap:6px}.study-diagram figcaption{grid-template-columns:1fr;gap:3px}.auth-story h1{font-size:29px}.chalk-flow li{gap:3px}.tool-header{gap:12px}.tool-header__icon{width:46px;height:46px}.workspace-form,.result-panel{padding-inline:17px}.sticky-actions{margin-inline:-17px;padding-inline:17px}.result-actions{align-items:stretch;flex-direction:column}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}@media(forced-colors:active){:root{scrollbar-color:auto}.button,.control,.tool-card,.workspace-form,.result-panel,.drop-zone{border:1px solid CanvasText}.brand-mark,.tool-card__icon,.tool-header__icon{forced-color-adjust:auto}}.public-page{min-height:100dvh;background:var(--canvas)}.public-header{width:min(1220px,calc(100% - 64px));min-height:88px;margin:0 auto;padding:16px 0;display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line)}.public-brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none}.public-brand__mark{width:36px;height:39px;display:grid;place-items:center;color:#fff;background:var(--primary);border-radius:var(--radius-sm)}.public-brand__mark svg{width:20px;height:20px;stroke-width:1.5}.public-brand>span:last-child{display:grid;gap:2px}.public-brand strong{font-family:var(--font-display);font-size:22px;font-weight:650;letter-spacing:.08em;line-height:1.3}.public-brand small{color:var(--muted);font-size:11px}.public-nav{display:flex;align-items:center;gap:16px}.public-nav>a:first-child{color:var(--muted);font-size:13px;font-weight:700;text-decoration:none}.public-nav>a:first-child:hover{color:var(--primary)}.public-login{min-height:42px;padding:0 17px;display:inline-flex;align-items:center;gap:12px;color:#fff;background:var(--primary);border-radius:var(--radius-sm);font-size:13px;font-weight:600;text-decoration:none;transition:background .16s}.public-login:hover{background:var(--primary-strong)}.public-login--quiet{color:var(--primary);background:transparent}.public-login--quiet:hover{background:var(--primary-soft)}.public-login:active{transform:scale(.98)}.public-login svg{width:16px;height:16px}.public-hero{width:min(1220px,calc(100% - 64px));margin:0 auto;padding:64px 0;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(300px,.8fr);align-items:center;gap:clamp(32px,6vw,90px);border-bottom:1px solid var(--line)}.public-hero__copy{min-width:0}.public-hero h1{margin:0 0 20px;font-family:var(--font-display);font-size:clamp(32px,3.7vw,48px);font-weight:650;letter-spacing:-.025em;line-height:1.45}.public-hero h1 span{color:var(--primary)}.public-hero__copy>p{max-width:540px;margin:0;color:var(--muted);font-size:14px;line-height:1.9}.public-hero__actions{margin-top:33px;display:flex;align-items:center;flex-wrap:wrap;gap:18px}.public-hero__actions>span{color:var(--muted);font-size:12px}.public-cta{min-height:46px;padding:10px 18px;display:inline-flex;align-items:center;gap:18px;color:#fff;background:var(--primary);border-radius:var(--radius-sm);font-size:14px;font-weight:600;text-decoration:none;transition:background .16s}.public-cta:hover{background:var(--primary-strong)}.public-cta:active{transform:scale(.98)}.public-cta>span{display:grid;place-items:center}.public-cta svg{width:18px;height:18px;transition:transform .32s cubic-bezier(.32,.72,0,1)}.public-cta:hover svg{transform:translate(2px)}.public-process{padding:24px 26px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius)}.public-process h2{margin:0;font-size:16px;font-weight:650}.public-process ol{margin:20px 0 0;padding:0;list-style:none}.public-process li{padding:17px 0;display:flex;align-items:flex-start;gap:14px;border-top:1px solid var(--line)}.public-process li:last-child{padding-bottom:0}.public-process li>svg{flex:0 0 auto;width:21px;height:21px;margin-top:3px;color:var(--primary)}.public-process strong{font-size:14px;font-weight:650}.public-process p{margin:4px 0 0;font-size:12px;color:var(--muted);line-height:1.7}.public-catalog{width:min(1220px,calc(100% - 64px));margin:0 auto;padding:40px 0 64px}.public-section-heading h2{margin:0 0 10px;font-family:var(--font-display);font-size:25px;font-weight:650;letter-spacing:-.02em}.public-section-heading p{margin:0;color:var(--muted);font-size:14px}.public-tabs{margin-top:26px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;border-bottom:1px solid var(--line)}.public-tab{min-height:68px;padding:10px 0 14px;display:grid;justify-items:start;gap:6px;color:var(--muted);background:transparent;border:0;border-bottom:2px solid transparent;text-align:left;transition:color .16s,border-color .16s}.public-tab:hover{color:var(--primary)}.public-tab.is-active{color:var(--primary);border-bottom-color:var(--primary)}.public-tab:active{transform:scale(.985)}.public-tab strong{font-size:15px}.public-tab span{font-size:11px}.public-tab-panel{min-height:310px;padding-top:25px}.public-tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.public-tool-shell{min-width:0;color:inherit;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);text-decoration:none;transition:border-color .16s}.public-tool-shell:hover{border-color:var(--focus-ring)}.public-tool-shell:active{transform:scale(.99)}.public-tool-card{position:relative;min-height:144px;padding:22px;display:grid;grid-template-columns:28px minmax(0,1fr);align-content:start;gap:10px 15px}.public-tool-card__icon{width:28px;height:28px;display:grid;place-items:center;color:var(--primary)}.public-tool-card__icon svg{width:24px;height:24px;stroke-width:1.55}.public-tool-card h3{max-width:calc(100% - 78px);margin:2px 0 7px;font-family:var(--font-display);font-size:15px;font-weight:650;line-height:1.6}.public-tool-card p{max-width:350px;margin:0;color:var(--muted);font-size:13px;line-height:1.6}.public-tool-card__action{grid-column:2;display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:12px;font-weight:600;white-space:nowrap}.public-tool-card__action svg{width:16px;height:16px;transition:transform .32s cubic-bezier(.32,.72,0,1)}.public-tool-shell:hover .public-tool-card__action svg{transform:translate(3px)}.public-planned,.public-state{min-height:300px;padding:48px 24px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:20px;text-align:center}.public-planned__icon{width:54px;height:54px;display:grid;place-items:center;color:var(--primary);background:var(--primary-soft);border-radius:17px}.public-planned h3{margin:17px 0 7px;color:var(--ink);font-family:var(--font-display);font-size:23px}.public-planned p{margin:0;font-size:13px}.public-planned button,.public-state button{margin-top:20px;padding:10px 14px;color:var(--primary);background:var(--primary-soft);border:0;border-radius:9px;font-size:13px;font-weight:700}.public-planned button{display:inline-flex;align-items:center;gap:8px}.public-footer{width:min(1220px,calc(100% - 64px));margin:0 auto;padding:24px 0 35px;display:flex;justify-content:space-between;gap:15px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}.public-footer span:last-child{display:inline-flex;align-items:center;gap:6px}.public-footer svg{color:var(--teal)}.result-stream{padding-top:20px}.result-stream__bar{min-height:50px;padding:8px 13px;display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--primary);background:var(--primary-soft);border-radius:var(--radius-sm);font-size:12px;font-weight:700}.result-stream__connection{margin:12px 0;color:var(--warning);font-size:12px}.result-stream pre{min-height:260px;margin:19px 0 0;padding:8px;overflow-wrap:anywhere;white-space:pre-wrap;color:var(--ink);font-family:var(--font-body);font-size:14px;line-height:1.8}.study-source{padding:20px 0 24px;border-bottom:1px solid var(--line)}.study-source__tabs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;margin:18px 0;padding:4px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--canvas)}.study-source__tabs button{min-height:43px;border:0;border-radius:7px;color:var(--muted);background:transparent;font:inherit;font-weight:700;cursor:pointer}.study-source__tabs button[aria-selected=true]{color:var(--primary);background:var(--paper);box-shadow:0 2px 10px #1f366314}.study-source__tabs button:hover:not([aria-selected=true]){color:var(--ink);background:#fff9}.study-source__tabs button:focus-visible{outline:3px solid var(--primary-soft);outline-offset:2px}.study-source__panel .field{margin:0}.study-source__panel textarea{min-height:176px}.study-source__count{display:block;margin-top:6px;color:var(--muted);font-family:var(--font-utility);font-size:11px;text-align:right}.generated-images{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:24px 0}.generated-images figure{margin:0;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--paper)}.generated-images img{display:block;width:100%;aspect-ratio:4 / 3;object-fit:contain;background:var(--canvas)}.generated-images figcaption{display:flex;justify-content:space-between;gap:12px;padding:11px 13px;font-size:12px}.generated-images figcaption a{color:var(--primary);font-weight:700}.generated-video{margin:24px 0;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--paper)}.generated-video video{display:block;width:100%;max-height:560px;aspect-ratio:16 / 9;background:var(--ink)}.generated-video figcaption{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding:14px 18px;color:var(--muted);font-size:13px}.generated-video figcaption a{color:var(--primary);font-weight:700}.credit-hero{position:relative;min-height:208px;padding:31px 200px 31px 36px;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--paper)}.credit-hero h1{margin:7px 0 12px;font-family:var(--font-display)}.credit-hero p{max-width:670px;margin:0;color:var(--muted);line-height:1.7}.credit-hero>strong{position:absolute;top:36px;right:36px;display:grid;justify-items:end;color:var(--primary);font-size:38px;font-variant-numeric:tabular-nums}.credit-hero>strong span{color:var(--muted);font-size:12px;font-weight:500}.credit-ledger{margin-top:22px;padding:24px 30px;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--paper)}.credit-list{padding:0;margin:18px 0 0;list-style:none}.credit-list li{display:grid;grid-template-columns:minmax(0,1fr) auto 90px;align-items:center;gap:18px;padding:16px 0;border-top:1px solid var(--line)}.credit-list li>div{display:grid;gap:3px}.credit-list time,.credit-list small{color:var(--muted);font-size:12px}.credit-list li>span{font-family:var(--font-utility);font-size:17px;font-weight:700}.credit-amount--debit{color:var(--ink)}.credit-amount--gain{color:var(--teal)}.paper-reflow-result{display:grid;gap:22px}.paper-reflow-result__intro{padding:18px 20px;border:1px solid #cbdad9;border-radius:14px;background:#f1f6f4;color:#193942}.paper-reflow-result__intro strong{font-size:15px}.paper-reflow-result__intro p{margin:6px 0 0;font-size:13px;line-height:1.7}.paper-reflow-result__grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px;align-items:start}.paper-reflow-result__editor{display:grid;gap:9px;min-width:0}.paper-reflow-result__editor label,.paper-reflow-result__page-label{color:#315565;font-size:12px;font-weight:700;letter-spacing:.04em}.paper-reflow-result__editor textarea{width:100%;min-height:670px;padding:20px;resize:vertical;border:1px solid #b9cbd0;border-radius:8px;outline-offset:3px;background:#fff;color:#18313a;font:14px/1.7 var(--font-body)}.paper-reflow-result__editor textarea:focus-visible{outline:2px solid #32758a}.paper-reflow-result__editor small{color:#5a7077;line-height:1.5}.paper-reflow-result__page{min-height:670px;padding:30px 28px;border:1px solid #d8e0e3;background:#fff;box-shadow:0 12px 32px #213d4614}.paper-reflow-result__page .markdown-result{margin-top:20px}@media(max-width:1100px){.paper-reflow-result__grid{grid-template-columns:1fr}.paper-reflow-result__editor textarea,.paper-reflow-result__page{min-height:400px}}@media(max-width:660px){.credit-hero{padding:27px 24px}.credit-hero>strong{position:static;margin-top:16px;justify-items:start}.credit-ledger{padding:20px}.credit-list li{grid-template-columns:1fr auto}.credit-list small{grid-column:1 / -1}}@media print{.sidebar,.mobile-header,.breadcrumbs,.tool-header,.tool-deliverables,.workspace-form,.workspace-panel__header,.result-actions,.review-checklist,.progress-rail,.study-progress,.notice-banner{display:none!important}.app-layout,.app-main,.page,.workspace-grid,.result-panel,.result-content{display:block!important;width:100%!important;max-width:none!important;min-height:0!important;padding:0!important;margin:0!important;border:0!important;box-shadow:none!important;background:#fff!important}}@media(max-width:900px){.public-hero{grid-template-columns:1fr;padding:40px 0;gap:28px}.public-process ol{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.public-process li{padding-bottom:0}}@media(max-width:660px){.public-header,.public-hero,.public-catalog,.public-footer{width:min(100% - 28px,1220px)}.public-header{min-height:74px;padding:12px 0}.public-brand small,.public-nav>a:first-child{display:none}.public-brand strong{font-size:18px}.public-login{min-height:39px;padding:0 12px}.public-hero{padding:32px 0;gap:28px}.public-hero h1{font-size:clamp(28px,7.8vw,36px)}.public-hero__copy>p{font-size:14px}.public-hero__actions{margin-top:24px;gap:14px}.public-process{padding:20px}.public-process ol{display:block;margin-top:16px}.public-process li{padding:14px 0}.public-catalog{padding:32px 0 48px}.public-tabs{grid-template-columns:repeat(3,minmax(0,1fr))}.public-tabs{gap:12px}.public-tab{min-height:76px;padding:10px 0}.public-tab strong{font-size:12px;line-height:1.35}.public-tab span{font-size:10px;line-height:1.35}.public-tool-grid{grid-template-columns:1fr}.public-tool-card{min-height:140px;padding:18px}.public-footer{flex-direction:column}}@media(forced-colors:active){.public-login,.public-cta,.public-tab,.public-tool-shell,.public-planned{border:1px solid CanvasText}}