@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-border-style:solid;--tw-font-weight:initial;--tw-outline-style:solid;--tw-shadow:0 0 #0000;--tw-shadow-color:initial;--tw-shadow-alpha:100%;--tw-inset-shadow:0 0 #0000;--tw-inset-shadow-color:initial;--tw-inset-shadow-alpha:100%;--tw-ring-color:initial;--tw-ring-shadow:0 0 #0000;--tw-inset-ring-color:initial;--tw-inset-ring-shadow:0 0 #0000;--tw-ring-inset:initial;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000;--tw-animation-delay:0s;--tw-animation-direction:normal;--tw-animation-duration:initial;--tw-animation-fill-mode:none;--tw-animation-iteration-count:1;--tw-enter-blur:0;--tw-enter-opacity:1;--tw-enter-rotate:0;--tw-enter-scale:1;--tw-enter-translate-x:0;--tw-enter-translate-y:0;--tw-exit-blur:0;--tw-exit-opacity:1;--tw-exit-rotate:0;--tw-exit-scale:1;--tw-exit-translate-x:0;--tw-exit-translate-y:0}}}@layer theme{:root,:host{--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, 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;--text-sm:.875rem;--text-sm--line-height:calc(1.25 / .875);--font-weight-medium:500;--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{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,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, 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:where(:not(iframe)){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]){appearance:button}::file-selector-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{.invisible{visibility:hidden}.visible{visibility:visible}.absolute{position:absolute}.relative{position:relative}.container{width:100%}@media (min-width:40rem){.container{max-width:40rem}}@media (min-width:48rem){.container{max-width:48rem}}@media (min-width:64rem){.container{max-width:64rem}}@media (min-width:80rem){.container{max-width:80rem}}@media (min-width:96rem){.container{max-width:96rem}}.block{display:block}.hidden{display:none}.inline-flex{display:inline-flex}.table{display:table}.size-10{width:calc(var(--spacing) * 10);height:calc(var(--spacing) * 10)}.h-9{height:calc(var(--spacing) * 9)}.h-10{height:calc(var(--spacing) * 10)}.h-11{height:calc(var(--spacing) * 11)}.grow{flex-grow:1}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.items-center{align-items:center}.justify-center{justify-content:center}.gap-2{gap:calc(var(--spacing) * 2)}.rounded{border-radius:.25rem}.rounded-md{border-radius:calc(var(--radius) - 2px)}.border{border-style:var(--tw-border-style);border-width:1px}.bg-background{background-color:var(--background)}.bg-primary{background-color:var(--primary)}.px-3{padding-inline:calc(var(--spacing) * 3)}.px-4{padding-inline:calc(var(--spacing) * 4)}.px-8{padding-inline:calc(var(--spacing) * 8)}.py-2{padding-block:calc(var(--spacing) * 2)}.text-sm{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}.font-medium{--tw-font-weight:var(--font-weight-medium);font-weight:var(--font-weight-medium)}.whitespace-nowrap{white-space:nowrap}.text-primary-foreground{color:var(--primary-foreground)}.underline{text-decoration-line:underline}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.transition-all{transition-property:all;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.running{animation-play-state:running}@media (hover:hover){.hover\:bg-accent:hover{background-color:var(--accent)}.hover\:bg-primary\/90:hover{background-color:var(--primary)}@supports (color:color-mix(in lab, red, red)){.hover\:bg-primary\/90:hover{background-color:color-mix(in oklab, var(--primary) 90%, transparent)}}.hover\:text-accent-foreground:hover{color:var(--accent-foreground)}}.focus-visible\:ring-2:focus-visible{--tw-ring-shadow:var(--tw-ring-inset,) 0 0 0 calc(2px + 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)}.focus-visible\:ring-ring:focus-visible{--tw-ring-color:var(--ring)}.focus-visible\:outline-none:focus-visible{--tw-outline-style:none;outline-style:none}.disabled\:pointer-events-none:disabled{pointer-events:none}.disabled\:opacity-50:disabled{opacity:.5}}@property --tw-animation-delay{syntax:"*";inherits:false;initial-value:0s}@property --tw-animation-direction{syntax:"*";inherits:false;initial-value:normal}@property --tw-animation-duration{syntax:"*";inherits:false}@property --tw-animation-fill-mode{syntax:"*";inherits:false;initial-value:none}@property --tw-animation-iteration-count{syntax:"*";inherits:false;initial-value:1}@property --tw-enter-blur{syntax:"*";inherits:false;initial-value:0}@property --tw-enter-opacity{syntax:"*";inherits:false;initial-value:1}@property --tw-enter-rotate{syntax:"*";inherits:false;initial-value:0}@property --tw-enter-scale{syntax:"*";inherits:false;initial-value:1}@property --tw-enter-translate-x{syntax:"*";inherits:false;initial-value:0}@property --tw-enter-translate-y{syntax:"*";inherits:false;initial-value:0}@property --tw-exit-blur{syntax:"*";inherits:false;initial-value:0}@property --tw-exit-opacity{syntax:"*";inherits:false;initial-value:1}@property --tw-exit-rotate{syntax:"*";inherits:false;initial-value:0}@property --tw-exit-scale{syntax:"*";inherits:false;initial-value:1}@property --tw-exit-translate-x{syntax:"*";inherits:false;initial-value:0}@property --tw-exit-translate-y{syntax:"*";inherits:false;initial-value:0}:root{--background:#fbfaf7;--foreground:#151b24;--card:#fff;--card-foreground:#151b24;--popover:#fff;--popover-foreground:#151b24;--primary:#125a98;--primary-foreground:#fbfaf7;--secondary:#eaeff5;--secondary-foreground:#192a3c;--muted:#f1eee9;--muted-foreground:#636974;--accent:#d5ebfe;--accent-foreground:#192a3c;--destructive:#d7352d;--border:#d7dbe1;--input:#d7dbe1;--ring:#125a98;--radius:.75rem}@supports (color:lab(0% 0 0)){:root{--background:lab(98.2719% .22471 1.50434);--foreground:lab(9.42785% -.533104 -7.25476);--card:lab(100% 0 0);--card-foreground:lab(9.42785% -.533104 -7.25476);--popover:lab(100% 0 0);--popover-foreground:lab(9.42785% -.533104 -7.25476);--primary:lab(36.7479% -3.12421 -40.2731);--primary-foreground:lab(98.2719% .22471 1.50434);--secondary:lab(94.1916% -1.09133 -3.56996);--secondary-foreground:lab(16.3613% -2.7121 -13.6872);--muted:lab(94.2232% .459701 3.01524);--muted-foreground:lab(44.2549% -.801176 -6.65509);--accent:lab(91.8792% -4.52009 -11.9297);--accent-foreground:lab(16.3613% -2.7121 -13.6872);--destructive:lab(49.3183% 62.5986 44.9578);--border:lab(87.2078% -.516236 -3.73391);--input:lab(87.2078% -.516236 -3.73391);--ring:lab(36.7479% -3.12421 -40.2731)}}*{border-color:var(--border)}body{background:var(--background);color:var(--foreground);font-family:Arial,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}.admin-note{color:#7e8597;font-size:14px}.admin-table{background:#fff;border:1px solid #e0e3eb;border-radius:12px;margin-top:28px;overflow:hidden}.admin-row{border-bottom:1px solid #eef0f3;grid-template-columns:1.2fr 1.5fr .7fr auto;align-items:center;gap:16px;padding:15px 18px;font-size:13px;display:grid}.admin-row:last-child{border:0}.admin-head{color:#858a9a;background:#f8f9fb;font-size:11px;font-weight:700}.admin-row>b{color:#33416e}.admin-row>span:nth-child(2){color:#626a80}.status{font-size:12px}.status-published{color:#338057}.status-draft{color:#a97736}.status-archived{color:#8c8e99}.admin-action{color:#465697;background:#fff;border:1px solid #cfd5e8;border-radius:7px;padding:7px 10px;font-size:12px}.admin-action:disabled{opacity:.5}@media (max-width:700px){.admin-row{grid-template-columns:1fr auto}.admin-row>span:nth-child(2),.admin-head>span:nth-child(2){display:none}}.mistake{color:#8a6870;align-items:baseline;gap:8px;text-decoration:none;display:flex}.mistake b{color:#765f67;font-weight:500}.mistake span,.natural span{border-radius:5px;width:auto;padding:2px 6px}.mistake span{color:#ad5f69;background:#f8e8e9}.natural span{color:#478150;background:#e8f4eb}.admin-shell{color:#283152;background:#f5f6f9;min-height:100vh}.admin-shell>header{color:#fff;background:#202a5a;justify-content:space-between;padding:18px max(24px,50% - 560px);font-size:14px;display:flex}.admin-shell>section{width:min(1120px,100% - 40px);margin:0 auto;padding:52px 0}.admin-shell h1{color:#243263;margin:0;font-size:38px}.admin-stats{grid-template-columns:repeat(4,1fr);gap:14px;margin:28px 0;display:grid}.admin-stats div,.admin-columns section{background:#fff;border:1px solid #e2e4eb;border-radius:12px;padding:20px}.admin-stats b,.admin-stats span{display:block}.admin-stats b{color:#394a9c;font-size:28px}.admin-stats span{color:#7d8496;margin-top:5px;font-size:12px}.admin-links{flex-wrap:wrap;gap:9px;display:flex}.admin-links a{color:#48589c;background:#fff;border:1px solid #d7daea;border-radius:8px;padding:10px 13px;font-size:13px}.library-admin-series-list{gap:18px;margin-top:28px;display:grid}.library-admin-series{background:#fff;border:1px solid #e0e4ed;border-radius:14px;padding:22px}.library-admin-series-heading{justify-content:space-between;align-items:flex-start;gap:20px;display:flex}.library-admin-series-heading h2{color:#283969;margin:5px 0 8px;font-size:22px}.library-admin-series-heading p:not(.eyebrow){color:#68718a;max-width:680px;margin:0;font-size:14px;line-height:1.6}.library-admin-actions{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:8px;display:flex}.library-admin-actions a{color:#405399;border:1px solid #d7dced;border-radius:7px;padding:8px 10px;font-size:12px;font-weight:700}.library-admin-module-list{gap:8px;margin-top:20px;display:grid}.library-admin-module{color:#394768;border:1px solid #e5e8f0;border-radius:9px;grid-template-columns:48px minmax(0,1fr) auto;align-items:center;gap:14px;padding:13px 14px;display:grid}.library-admin-module:hover{background:#fafbff;border-color:#b9c3e5}.library-admin-module>span{color:#485ca7;font-size:13px;font-weight:700}.library-admin-module b,.library-admin-module small{display:block}.library-admin-module b{color:#34416e;font-size:14px}.library-admin-module small{color:#778098;margin-top:4px;font-size:12px}.library-admin-module em{color:#586891;white-space:nowrap;font-size:12px;font-style:normal}.library-admin-issues{margin-top:34px}.admin-delete-action{margin-top:18px}.admin-delete-action>button{color:#b1434d;cursor:pointer;background:#fff;border:1px solid #e6b6bb;border-radius:8px;padding:9px 13px;font-size:13px;font-weight:700}.admin-delete-action>button:hover:not(:disabled){background:#fff4f5}.admin-delete-action>button:disabled{opacity:.55}.admin-columns{grid-template-columns:1fr 1fr;gap:16px;margin-top:28px;display:grid}.admin-columns h2{margin:0 0 13px;font-size:18px}.admin-columns p{color:#5d657b;border-bottom:1px solid #eee;justify-content:space-between;margin:0;padding:10px 0;font-size:13px;display:flex}.admin-columns small{color:#969baa;margin-top:15px;font-size:11px;line-height:1.5;display:block}@media (max-width:700px){.admin-stats{grid-template-columns:1fr 1fr}.admin-columns{grid-template-columns:1fr}.library-admin-series-heading{display:grid}.library-admin-actions{justify-content:flex-start}.library-admin-module{grid-template-columns:42px minmax(0,1fr)}.library-admin-module em{grid-column:2}}*{box-sizing:border-box}a{color:inherit;text-decoration:none}button,input{font:inherit}.shell{width:min(1120px,100% - 40px);margin-inline:auto}.site-header{background:var(--background);align-items:center;height:72px;display:flex}@supports (color:color-mix(in lab, red, red)){.site-header{background:color-mix(in oklab, var(--background) 92%, white)}}.site-header{border-bottom:1px solid var(--border)}@supports (color:color-mix(in lab, red, red)){.site-header{border-bottom:1px solid color-mix(in oklab, var(--border) 72%, transparent)}}.site-header{z-index:5;position:relative}.nav-wrap{justify-content:space-between;align-items:center;display:flex}.brand{letter-spacing:-.04em;align-items:center;gap:9px;font-size:18px;font-weight:800;display:inline-flex}.brand-mark{color:#fff;background:#273f9b;border-radius:9px;place-items:center;width:29px;height:29px;font:800 16px Georgia,serif;display:grid}.brand-light{font-weight:500}.desktop-nav{color:#586179;align-items:center;gap:28px;font-size:14px;display:flex}.desktop-nav a:hover{color:#182c7d}.ai-nav{color:#4c3ab4;align-items:center;gap:5px;display:flex}.login-link{color:#fff;background:#283f9d;border-radius:999px;padding:9px 18px}.mobile-menu{color:#26355f;background:0 0;border:0;display:none}.mobile-nav-backdrop,.mobile-navigation{display:none}.courses-page{padding-top:72px;padding-bottom:88px}.courses-page .page-title{max-width:780px;font-size:clamp(40px,5.2vw,64px)}.course-grid{grid-template-columns:repeat(3,1fr);gap:18px;margin-top:38px;display:grid}.course-card{background:#fff;border:1px solid #e2e4ed;border-radius:17px;overflow:hidden;box-shadow:0 10px 30px #1f2b5d0d}.course-cover,.course-hero-cover{color:#fff;background:linear-gradient(145deg,#223d9c,#7a76c9) 50%/cover;align-items:end;min-height:158px;padding:17px;display:flex}.course-cover span{background:#ffffff30;border-radius:999px;padding:5px 9px;font-size:12px;font-weight:700}.course-card-body{padding:21px}.course-card-meta{color:#6870b6;letter-spacing:.12em;font-size:11px;font-weight:800}.course-card h2{color:#202e63;margin:8px 0;font-size:21px}.course-card p{color:#687087;min-height:44px;margin:0 0 18px;font-size:14px;line-height:1.6}.course-start,.course-lock{border-radius:9px;align-items:center;gap:7px;padding:10px 13px;font-size:13px;font-weight:700;display:inline-flex}.course-start{color:#fff;background:#293f9d}.course-lock{color:#5545a5;background:#f2efff}.course-detail-page{padding-bottom:80px}.course-hero{background:linear-gradient(118deg,#edf0ff,#f8f6ee);padding:45px 0 54px}.course-detail-hero{grid-template-columns:1fr 260px;align-items:end;gap:55px;margin-top:28px;display:grid}.course-detail-hero h1{color:#1d2e68;letter-spacing:-.055em;margin:0;font-size:clamp(40px,5vw,62px)}.course-detail-hero p:not(.eyebrow){color:#5c6680;max-width:620px;margin:17px 0 0;font-size:17px;line-height:1.75}.course-hero-actions{gap:10px;margin-top:25px;display:flex}.course-favorite-button{color:#47506b;background:#fff;border:1px solid #cdd3e4;border-radius:9px;align-items:center;gap:7px;padding:10px 13px;font-size:13px;font-weight:700;display:inline-flex}.course-hero-cover{border-radius:17px;flex-direction:column;justify-content:end;align-items:start;min-height:210px;box-shadow:inset 0 -80px 80px #0f1a4a2e}.course-hero-cover b{font-size:42px;line-height:1}.course-hero-cover span{margin-top:5px;font-size:13px}.lesson-list-section{padding-top:58px}.lesson-list-section .section-heading>span{color:#69718a;font-size:13px}.lesson-list{background:#fff;border:1px solid #e1e4ec;border-radius:14px;overflow:hidden}.lesson-row{border-bottom:1px solid #eef0f4;grid-template-columns:52px 1fr auto 20px;align-items:center;gap:17px;padding:17px 20px;display:grid}.lesson-row:last-child{border:0}.lesson-row:hover{background:#fafbff}.lesson-number{color:#737c99;font-size:12px;font-weight:700}.lesson-number.done{color:#34805c}.lesson-row b{color:#273565;font-size:15px}.lesson-row p{color:#6d7489;margin:4px 0;font-size:13px}.lesson-row small{color:#4d7b60}.lesson-duration{color:#8790a2;font-size:12px}.learn-page{padding-top:38px;padding-bottom:88px}.learn-heading{margin:28px 0 22px}.learn-heading span{color:#626db0;letter-spacing:.13em;font-size:12px;font-weight:800}.learn-heading h1{color:#202f66;letter-spacing:-.04em;margin:6px 0 0;font-size:clamp(32px,4vw,48px)}.lesson-player{background:#fff;border:1px solid #dce0eb;border-radius:16px;overflow:hidden}.player-toolbar{color:#7a8295;justify-content:space-between;align-items:center;gap:14px;padding:12px 15px;font-size:12px;display:flex}.mode-switch{background:#eef0f6;border-radius:8px;padding:3px;display:inline-flex}.mode-switch button{color:#687087;background:0 0;border:0;border-radius:6px;align-items:center;gap:5px;padding:6px 9px;font-size:12px;display:inline-flex}.mode-switch button.active{color:#273e98;background:#fff;box-shadow:0 1px 3px #00000014}.course-video{aspect-ratio:16/9;background:#10162f;width:100%;max-height:620px;display:block}.course-audio,.media-empty{background:radial-gradient(circle,#4f65bc,#17265f);place-items:center;min-height:280px;display:grid}.course-audio audio{width:min(78%,600px)}.audio-orb{color:#fff;background:#ffffff2e;border-radius:50%;place-items:center;width:88px;height:88px;font:800 28px Georgia,serif;display:grid}.media-empty{color:#fff}.lesson-actions{grid-template-columns:1fr auto 1fr;align-items:center;padding:14px;display:grid}.lesson-actions a,.lesson-actions button{color:#53617e;background:0 0;border:0;border-radius:8px;justify-content:center;align-items:center;gap:5px;padding:9px 11px;font-size:13px;font-weight:700;display:inline-flex}.lesson-actions a:last-child{justify-self:end}.lesson-actions button{color:#337b55;background:#eaf5ed}.lesson-actions button.completed{background:#d8f0df}.lesson-content{max-width:790px;margin-top:38px}.lesson-content>section:first-child{margin-bottom:18px}.lesson-content>section:first-child h2{color:#273769;margin:4px 0;font-size:28px}.lesson-content .expression-block{margin-top:16px}.lesson-content .detail-section{margin-top:36px}@media (max-width:760px){.course-grid{grid-template-columns:1fr}.course-detail-hero{grid-template-columns:1fr;gap:28px}.course-hero-cover{min-height:145px}.lesson-row{grid-template-columns:40px 1fr 18px;gap:10px}.lesson-duration{display:none}.lesson-actions{grid-template-columns:1fr auto 1fr}.lesson-actions a,.lesson-actions button{padding:8px;font-size:12px}.player-toolbar{flex-direction:column;align-items:start}.course-audio,.media-empty{min-height:220px}}.hero{background:linear-gradient(125deg,#f3f0ff 0%,#f9f7f0 53%,#edf5ff 100%);padding:102px 0 92px;position:relative;overflow:hidden}.hero-inner{z-index:1;position:relative}.eyebrow{color:#5962b6;letter-spacing:.16em;margin:0 0 13px;font-size:11px;font-weight:800}.hero h1,.page-title{color:#192963;letter-spacing:-.065em;margin:0;font-size:clamp(42px,6vw,72px);line-height:.99}.hero h1 i{color:#5a47be;font-family:Georgia,Songti SC,serif;font-weight:500}.hero-copy{color:#60667b;max-width:500px;margin:25px 0 28px;font-size:17px;line-height:1.75}.hero-orb{filter:blur(2px);opacity:.6;border-radius:999px;position:absolute}.orb-a{background:#c7ddff;width:340px;height:340px;top:60px;right:-80px}.orb-b{background:#d9cbff;width:210px;height:210px;bottom:-120px;right:19%}.search-form{max-width:700px}.search-field{background:#fff;border:1px solid #d6d8e2;border-radius:15px;align-items:center;gap:12px;height:64px;padding:5px 6px 5px 19px;display:flex;position:relative;box-shadow:0 12px 25px #5d62921a}.search-icon{color:#4d57a8;flex:none}.search-field input{color:#253053;background:0 0;border:0;outline:0;flex:1;min-width:0;font-size:16px}.search-field button{color:#fff;cursor:pointer;background:#263f9d;border:0;border-radius:10px;height:52px;padding:0 24px;font-weight:700}.suggestions{z-index:4;top:calc(100% + 7px);background:#fff;border:1px solid #e5e6eb;border-radius:13px;position:absolute;inset-inline:0;overflow:hidden;box-shadow:0 18px 35px #1f285d20}.suggestions a{border-bottom:1px solid #f0f0f2;justify-content:space-between;align-items:center;gap:20px;padding:12px 16px;display:flex}.suggestions a:last-child{border:0}.suggestions b,.suggestions em{font-size:14px;display:block}.suggestions small{color:#8a8e9d;margin-top:2px;font-size:11px;display:block}.suggestions em{color:#3347a4;text-align:right;font-style:normal}.search-hint{color:#8b8e9b;flex-wrap:wrap;gap:11px;margin:15px 0 26px;font-size:12px;display:flex}.search-hint a{color:#5962a1;border-bottom:1px solid #b7bdde}.ai-cta{color:#5140aa;background:#fffaffaa;border:1px solid #d8d2f4;border-radius:13px;align-items:center;gap:12px;max-width:365px;padding:13px 16px;display:flex}.ai-cta strong,.ai-cta small{display:block}.ai-cta strong{font-size:13px}.ai-cta small{color:#8882aa;margin-top:2px;font-size:11px}.ai-cta .arrow{margin-left:auto;font-size:22px}.scene-section{padding:84px 0}.section-heading{justify-content:space-between;align-items:end;gap:20px;margin-bottom:28px;display:flex}.section-heading h2{color:#202d58;letter-spacing:-.045em;margin:0;font-size:28px}.section-heading>a{color:#5460a0;align-items:center;gap:6px;font-size:14px;display:flex}.scene-grid{grid-template-columns:repeat(4,1fr);gap:14px;display:grid}.scene-card{background:#fff;border:1px solid #e6e6eb;border-radius:15px;min-height:180px;padding:21px;transition:transform .2s,box-shadow .2s;position:relative}.scene-card:hover{transform:translateY(-3px);box-shadow:0 12px 22px #27376b12}.scene-icon{font-size:27px}.scene-card h3{color:#26345e;margin:24px 0 5px;font-size:17px}.scene-card p{color:#85899a;margin:0;font-size:12px}.scene-card svg{color:#5c65a8;position:absolute;bottom:18px;right:18px}.how-section{color:#fff;background:#252d5b;padding:75px 0}.how-section .eyebrow{color:#aeb8f4}.how-section h2{color:#fff}.steps{grid-template-columns:repeat(3,1fr);gap:48px;display:grid}.steps>div{padding-top:15px;position:relative}.steps svg{color:#c9beff}.steps h3{margin:18px 0 8px;font-size:18px}.steps p{color:#c4c8d9;margin:0;font-size:14px;line-height:1.7}.step-number{color:#545e91;font-size:12px;font-weight:700;position:absolute;top:0;right:0}.bottom-cta{color:#263b89;background:#e9effe;border-radius:17px;align-items:center;gap:17px;margin:80px auto;padding:32px 36px;display:flex}.bottom-cta h2{letter-spacing:-.04em;margin:0;font-size:20px}.bottom-cta p{color:#7180a8;margin:4px 0 0;font-size:13px}.bottom-cta a{align-items:center;gap:6px;margin-left:auto;font-size:14px;font-weight:700;display:flex}.footer{color:#9698a3;border-top:1px solid #e7e6e3;padding:24px 0;font-size:12px}.footer span{float:right}.footer a{color:inherit;margin-left:12px;text-decoration:none}.footer a:hover{text-decoration:underline}.content-page{padding-top:52px;padding-bottom:85px}.page-search{max-width:780px;margin-bottom:50px}.search-form-compact .search-field{border-radius:12px;height:56px}.search-form-compact .search-field button{height:44px}.results-heading{margin-bottom:27px}.results-heading h1{color:#23315f;letter-spacing:-.05em;margin:0;font-size:30px}.results-heading p,.page-intro{color:#878b9c;margin:10px 0 0;font-size:14px}.results-grid{grid-template-columns:repeat(2,1fr);gap:16px;display:grid}.expression-card{background:#fff;border:1px solid #e5e5e9;border-radius:14px;transition:box-shadow .2s,transform .2s;overflow:hidden}.expression-card:hover{transform:translateY(-2px);box-shadow:0 12px 26px #1b275e11}.card-top{justify-content:space-between;align-items:center;height:39px;padding:12px 15px 0;display:flex}.category-pill{color:#6a70a5;background:#f0f1fa;border-radius:999px;padding:3px 8px;font-size:10px}.favorite-button{color:#9296a7;cursor:pointer;background:0 0;border:0;padding:4px}.favorite-button[aria-pressed=true]{color:#d05d76}.favorite-section{margin-top:42px}.favorite-section-heading{justify-content:space-between;align-items:end;gap:16px;margin-bottom:17px;display:flex}.favorite-section-heading .eyebrow{margin-bottom:6px}.favorite-section-heading h2{color:#243263;letter-spacing:-.04em;margin:0;font-size:24px}.favorite-section-heading>span{color:#7c8498;font-size:13px}.course-favorites-section{background:linear-gradient(135deg,#f7f8ff,#fff);border:1px solid #e2e5ef;border-radius:18px;padding:26px}.favorite-course-grid{margin-top:0}.favorite-course-actions{justify-content:space-between;align-items:center;gap:10px;display:flex}.favorite-course-actions .course-favorite-button{padding:9px 10px;font-size:12px}.course-favorite-button[aria-pressed=true]{color:#b94f68;background:#fff7f8;border-color:#e6b8c3}.library-page{padding-bottom:88px}.library-hero{background:linear-gradient(125deg,#eef0ff,#fcf8ed 62%,#edf7fb);padding:92px 0 82px;position:relative;overflow:hidden}.library-hero h1{color:#202f66;letter-spacing:-.065em;max-width:760px;margin:8px 0 17px;font-size:clamp(42px,5.8vw,70px);line-height:1.04}.library-hero h1 i{color:#5063bd;font-family:Georgia,serif;font-weight:500}.library-hero>.shell>p:not(.eyebrow){color:#65708c;max-width:610px;font-size:16px;line-height:1.75}.library-hero-stats{text-align:right;background:#ffffffd9;border:1px solid #e6e9f5;border-radius:15px;min-width:135px;padding:18px;position:absolute;bottom:48px;right:max(20px,50vw - 560px);box-shadow:0 14px 30px #28396412}.library-hero-stats b,.library-hero-stats span{display:block}.library-hero-stats b{color:#2c4199;font-size:34px;line-height:1}.library-hero-stats span{color:#79839a;margin-top:4px;font-size:11px}.library-section{padding-top:58px}.library-home-note,.library-study-note{color:#52617c;background:#f7f9ff;border:1px solid #dce4f4;border-radius:16px;align-items:flex-start;gap:14px;margin-top:40px;padding:20px 22px;display:flex}.library-home-note svg,.library-study-note svg{color:#314fae;flex:none}.library-home-note h2,.library-study-note b{color:#263765;margin:2px 0 5px;font-size:16px}.library-home-note p,.library-study-note p{margin:0;font-size:13px;line-height:1.7}.library-resume-section{z-index:1;margin-top:-26px;position:relative}.library-resume-link{color:#334576;background:#fff;border:1px solid #dbe3f5;border-radius:16px;align-items:center;gap:15px;max-width:680px;padding:17px 20px;display:flex;box-shadow:0 12px 30px #28396412}.library-resume-link>svg:first-child{color:#405bb4;flex:none}.library-resume-link>svg:last-child{color:#6578b8;margin-left:auto}.library-resume-link>div{gap:3px;min-width:0;display:grid}.library-resume-link span{color:#7381ad;letter-spacing:.12em;font-size:10px;font-weight:800}.library-resume-link b{color:#293960;text-overflow:ellipsis;white-space:nowrap;font-size:15px;overflow:hidden}.library-resume-link small{color:#75819c;text-overflow:ellipsis;white-space:nowrap;font-size:12px;overflow:hidden}.library-resume-link:hover{border-color:#aebfe8;transform:translateY(-1px)}.library-series-grid,.library-latest-grid{grid-template-columns:repeat(3,1fr);gap:16px;margin-top:21px;display:grid}.library-series-card{border:1px solid #e0e4ed;border-top:5px solid var(--library-accent);background:#fff;border-radius:17px;flex-direction:column;min-height:230px;padding:22px;transition:transform .2s,box-shadow .2s;display:flex;position:relative;overflow:hidden;box-shadow:0 9px 25px #2638730b}.library-series-card:hover{transform:translateY(-3px);box-shadow:0 16px 30px #26387314}.library-series-card>span{color:#78839b;letter-spacing:.1em;font-size:11px;font-weight:700}.library-series-card h2{color:#263566;letter-spacing:-.04em;margin:12px 0 10px;font-size:21px;line-height:1.3}.library-series-card p{color:#717b91;margin:0;font-size:13px;line-height:1.7}.library-series-card footer{color:#61708d;align-items:center;gap:4px;margin-top:auto;padding-top:22px;font-size:12px;display:flex}.library-series-card footer b{color:#293f9d;font-size:20px}.library-series-card footer svg{color:#283f9d;margin-left:auto}.library-guidance{background:linear-gradient(135deg,#f5f7ff,#fff 68%);border:1px solid #dce4f4;border-radius:18px;margin-top:38px;padding:28px}.library-guidance summary{cursor:pointer;list-style:none}.library-guidance summary::-webkit-details-marker{display:none}.library-guidance summary:after{color:#4d63ae;content:"点击展开完整学习方法  ↓";margin-top:14px;font-size:12px;font-weight:700;display:block}.library-guidance[open] summary{border-bottom:1px solid #e2e6f1;padding-bottom:17px}.library-guidance[open] summary:after{content:"收起学习方法  ↑"}.library-guidance-heading span{color:#71809d;margin-top:5px;font-size:12px;display:block}.library-guidance-content{padding-top:5px}.library-guidance-heading{justify-content:space-between;align-items:flex-start;gap:20px;display:flex}.library-guidance-heading h2,.library-copyright h2{color:#273763;margin:4px 0 0;font-size:24px}.library-guidance-heading>svg{color:#576ec4}.library-guidance-overview{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:17px;display:grid}.library-guidance-overview>div{background:#fff;border:1px solid #dfe5f3;border-radius:13px;padding:15px 17px}.library-guidance-overview b{color:#334b9d;font-size:13px}.library-guidance-overview p,.library-guidance-route{color:#5f6d89;margin:7px 0 0;font-size:13px;line-height:1.75}.library-guidance-route{background:#edf1ff;border-left:3px solid #7488d0;padding:13px 15px}.library-method-stack{gap:14px;margin-top:18px;display:grid}.library-method-card{background:#fff;border:1px solid #dfe4ef;border-radius:15px;padding:21px}.library-method-card-featured{background:linear-gradient(135deg,#fff,#f8f9ff);border-color:#d5ddef}.library-method-card header{border-bottom:1px solid #e8ebf2;align-items:flex-start;gap:13px;padding-bottom:14px;display:flex}.library-method-card header>span{color:#fff;letter-spacing:.06em;background:#2e4396;border-radius:10px;flex:none;place-items:center;width:33px;height:33px;font-size:11px;font-weight:800;display:grid}.library-method-card h3{color:#293a68;margin:0;font-size:17px;line-height:1.4}.library-method-card header p{color:#73809a;margin:4px 0 0;font-size:12px;line-height:1.6}.library-method-card ol{counter-reset:method-step;gap:0;margin:13px 0 0;padding:0;list-style:none;display:grid}.library-method-card li{color:#394765;counter-increment:method-step;border-bottom:1px solid #edf0f5;padding:11px 0 11px 39px;font-size:13px;line-height:1.72;position:relative}.library-method-card li:last-child{border-bottom:0}.library-method-card li:before{color:#5269b3;content:counter(method-step);background:#eef1fb;border-radius:50%;place-items:center;width:25px;height:25px;font-size:11px;font-weight:800;display:grid;position:absolute;top:11px;left:0}.library-method-card li b{color:#2e3c61;display:block}.library-method-card li span{color:#66738d;margin-top:3px;display:block}.library-method-note{color:#6d5e48;background:#fff8e9;border-radius:12px;margin-top:13px;padding:15px 17px}.library-method-note b{color:#80663c;font-size:13px}.library-method-note p{margin:7px 0 0;font-size:12px;line-height:1.78}.library-method-note p+p{border-top:1px solid #efdfbc;padding-top:7px}.library-guidance-footer{color:#637192;align-items:center;gap:8px;margin-top:17px;font-size:12px;line-height:1.6;display:flex}.library-guidance-footer svg{color:#5369b7;flex:none}.library-copyright{background:#fffcf6;border:1px solid #eadfcf;border-radius:18px;align-items:flex-start;gap:15px;margin-top:16px;padding:23px 25px;display:flex}.library-copyright>svg{color:#a87a3e;flex:none;margin-top:3px}.library-copyright .eyebrow{color:#a77b3d}.library-copyright h2{color:#624d32}.library-copyright p:not(.eyebrow){color:#72634f;max-width:870px;margin:10px 0 5px;font-size:13px;line-height:1.75}.library-copyright small{color:#94836b;font-size:11px;line-height:1.6}.library-continue{color:#273d92;background:linear-gradient(110deg,#eef1ff,#fff);border:1px solid #dce2f5;border-radius:17px;align-items:center;gap:17px;margin-top:60px;padding:25px 28px;display:flex}.library-continue>svg{flex:none}.library-continue .eyebrow{margin-bottom:4px}.library-continue h2{margin:0;font-size:18px}.library-continue p:not(.eyebrow){color:#73809e;margin:5px 0 0;font-size:12px}.library-continue a{align-items:center;gap:6px;margin-left:auto;font-size:13px;font-weight:700;display:inline-flex}.library-latest-grid{grid-template-columns:repeat(4,1fr)}.library-latest-grid article{background:#fff;border:1px solid #e1e5ed;border-radius:14px;padding:19px}.library-latest-grid p{color:#6872af;margin:0;font-size:11px;font-weight:700}.library-latest-grid h3{color:#293765;min-height:48px;margin:10px 0;font-size:17px;line-height:1.4}.library-latest-grid>article>span{color:#8790a3;align-items:center;gap:5px;font-size:11px;display:flex}.library-latest-grid a{color:#2e429b;align-items:center;gap:5px;margin-top:19px;font-size:12px;font-weight:700;display:inline-flex}.library-series-hero{background:linear-gradient(125deg, var(--library-accent), #fafbff);padding:45px 0 53px}@supports (color:color-mix(in lab, red, red)){.library-series-hero{background:linear-gradient(125deg, color-mix(in srgb, var(--library-accent) 22%, white), #fafbff)}}.library-series-hero .back-link,.library-lesson-page .back-link{color:#64708c;margin-bottom:26px;font-size:13px;display:inline-block}.library-series-hero h1{color:#223261;letter-spacing:-.055em;max-width:760px;margin:7px 0 12px;font-size:clamp(38px,5vw,60px);line-height:1.08}.library-series-hero p:not(.eyebrow){color:#67728e;max-width:650px;margin:0;font-size:16px;line-height:1.75}.library-issue-section{padding-top:35px;padding-bottom:80px}.library-module-section{padding-top:38px;padding-bottom:88px}.library-module-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:20px;display:grid}.library-module-card{background:#fff;border:1px solid #e0e4ed;border-radius:16px;flex-direction:column;min-height:190px;padding:20px;transition:transform .2s,box-shadow .2s;display:flex;box-shadow:0 9px 25px #2638730a}.library-module-card:hover{transform:translateY(-3px);box-shadow:0 16px 30px #26387314}.library-module-card-top{color:#6d7cb4;justify-content:space-between;align-items:center;display:flex}.library-module-card-top span{letter-spacing:.08em;font-size:13px;font-weight:800}.library-module-card h2{color:#273763;margin:14px 0 8px;font-size:19px;line-height:1.4}.library-module-card p{color:#748097;margin:0;font-size:13px;line-height:1.65}.library-module-card footer{color:#758198;align-items:center;gap:8px;margin-top:auto;padding-top:18px;font-size:11px;display:flex}.library-module-card footer b{color:#31479e;margin-left:auto;font-size:12px}.library-module-card footer svg{color:#31479e}.library-module-page{padding-top:30px;padding-bottom:90px}.library-breadcrumb{color:#748097;align-items:center;gap:7px;font-size:12px;display:flex}.library-breadcrumb a{color:#60709b}.library-module-heading{max-width:800px;margin:26px 0 28px}.library-module-heading h1{color:#223261;letter-spacing:-.05em;margin:7px 0 12px;font-size:clamp(30px,4vw,48px);line-height:1.15}.library-module-heading>p:not(.eyebrow){color:#66718d;margin:0;font-size:15px;line-height:1.75}.library-module-heading>div{flex-wrap:wrap;gap:8px;margin-top:16px;display:flex}.library-module-heading>div span{color:#657393;background:#f0f3fa;border-radius:999px;padding:6px 10px;font-size:11px}.library-module-empty{text-align:center;background:#fafbff;border:1px dashed #d7deeb;border-radius:16px;flex-direction:column;justify-content:center;align-items:center;min-height:260px;padding:30px;display:flex}.library-module-empty svg{color:#7184bd}.library-module-empty h2{color:#2c3b68;margin:12px 0 4px;font-size:19px}.library-module-empty p{color:#728098;margin:0;font-size:13px}.library-tags{flex-wrap:wrap;gap:8px;margin-bottom:20px;display:flex}.library-tags span{color:#64708a;background:#f0f2f7;border-radius:999px;padding:7px 10px;font-size:12px}.library-tags span:first-child{color:#fff;background:#293f9d}.library-issue-list{background:#fff;border:1px solid #e2e5ed;border-radius:16px;overflow:hidden}.library-issue-row{border-bottom:1px solid #edf0f4;grid-template-columns:52px 1fr auto;align-items:center;gap:17px;padding:18px 20px;display:grid}.library-issue-row:last-child{border-bottom:0}.library-issue-row:hover{background:#fafbff}.issue-number{color:#6c7795;background:#f0f2fa;border-radius:50%;place-items:center;width:35px;height:35px;font-size:11px;font-weight:700;display:grid}.issue-number.done{color:#318056;background:#e3f2e8}.library-issue-row h2{color:#253463;margin:0;font-size:17px}.library-issue-row p{color:#6f798f;margin:5px 0;font-size:13px}.library-issue-row small{color:#929aaa;font-size:11px}.issue-meta{color:#7f899d;align-items:center;gap:6px;font-size:12px;display:flex}.library-lesson-page{padding-top:35px;padding-bottom:88px}.library-lesson-heading{max-width:760px;margin-bottom:35px}.library-lesson-heading h1{color:#223261;letter-spacing:-.06em;margin:5px 0 12px;font-size:clamp(38px,5vw,60px);line-height:1.1}.library-lesson-heading>p:not(.eyebrow){color:#66718d;margin:0;font-size:16px;line-height:1.7}.library-lesson-heading>span{color:#727d94;align-items:center;gap:6px;margin-top:15px;font-size:12px;display:flex}.library-learn-flow{grid-template-columns:minmax(0,1fr) 245px;align-items:start;gap:26px;display:grid}.library-flow-step{background:#fff;border:1px solid #e1e5ee;border-radius:17px;padding:27px}.library-flow-step+.library-flow-step{margin-top:18px}.library-flow-step>p{color:#6571b7;letter-spacing:.1em;margin:0;font-size:11px;font-weight:700}.library-flow-step .library-step-label{color:#3f55ac;letter-spacing:.15em;margin-bottom:20px;font-size:19px;line-height:1}.library-practice-step>p:not(.eyebrow):not(.library-step-label){color:#61708c;font-size:14px;line-height:1.7}.library-practice-step>.library-step-label{color:#3f55ac;font-size:19px;line-height:1}.library-source-copy{white-space:pre-line;color:#43516e;font-size:14px;line-height:1.8}.library-reference-sheet{border:1px solid #dbe0eb;border-radius:14px;width:100%;display:block}.library-media-slot{color:#5a6884;background:#fafbff;border:1px dashed #cbd4e7;border-radius:12px;align-items:center;gap:12px;padding:15px;display:flex}.library-media-slot+.library-media-slot{margin-top:10px}.library-media-slot>svg{color:#5063bd;flex:none}.library-media-slot>div{flex-direction:column;flex:1;gap:3px;min-width:0;display:flex}.library-media-slot b{color:#32416d;font-size:13px}.library-media-slot span{font-size:11px;line-height:1.55}.library-media-slot em{color:#6272a6;background:#e9edfa;border-radius:6px;padding:5px 7px;font-size:10px;font-style:normal;font-weight:800}.library-media-slot a{color:#334b9c;font-size:12px;font-weight:700}.library-media-slot audio{width:min(230px,38%);height:32px}.library-prompt{color:#384363;border-top:1px solid #edf0f4;align-items:baseline;gap:12px;padding:13px 0;display:flex}.library-prompt b{color:#8490aa;font-size:11px}.library-compare{border:1px solid #e0e5ed;border-radius:10px;overflow:hidden}.library-compare>div{grid-template-columns:.8fr 1fr 1fr;display:grid}.library-compare span{border-bottom:1px solid #e0e5ed;border-right:1px solid #e0e5ed;padding:12px;font-size:13px;line-height:1.55}.library-compare>div:last-child span{border-bottom:0}.library-compare span:last-child{border-right:0}.library-compare .compare-head{color:#fff;background:#273660;font-size:11px;font-weight:700}.library-compare>div:not(.compare-head) span:nth-child(2){color:#9b6269;background:#fff7f7}.library-compare>div:not(.compare-head) span:last-child{color:#337550;background:#f4fbf5;font-weight:700}.library-explanation+.library-explanation{border-top:1px solid #edf0f4;margin-top:24px;padding-top:23px}.library-explanation h3{color:#2d459c;margin:0;font-size:17px}.library-explanation p{color:#5f6a82;margin:9px 0;font-size:14px;line-height:1.7}.library-explanation blockquote{color:#3e4966;background:#f8f9ff;border-left:3px solid #bfc8f0;flex-direction:column;gap:4px;margin:9px 0 0;padding:10px 13px;font-size:13px;display:flex}.library-explanation blockquote span{color:#818a9f}.library-lesson-side{color:#62708f;background:#f1f3ff;border-radius:14px;flex-direction:column;gap:10px;padding:20px;font-size:12px;display:flex;position:sticky;top:22px}.library-lesson-side>b{color:#283d8f;font-size:15px}.library-lesson-side>a{color:#2e429e;margin-top:3px;font-weight:700}.library-lesson-side small{color:#7e71a8}.library-issue-pagination{gap:7px;padding-top:4px;display:grid}.library-issue-pagination>span{color:#69779b;letter-spacing:.08em;font-size:11px;font-weight:800}.library-issue-pagination a{color:#2e429e;background:#fff;border:1px solid #bdc9eb;border-radius:11px;justify-content:center;align-items:center;gap:8px;min-height:46px;padding:10px 14px;font-size:16px;font-weight:700;display:flex}.library-issue-pagination a:hover{background:#e9edff;border-color:#7085cb}.library-issue-pagination em{color:#929aaf;padding:10px 2px;font-size:13px;font-style:normal;font-weight:500}.library-complete{color:#fff;background:#293f9d;border:0;border-radius:9px;justify-content:center;align-items:center;gap:6px;width:100%;margin-top:12px;padding:11px;font-size:12px;font-weight:700;display:flex}.library-complete.is-done{color:#2f7751;background:#dff0e5}.library-progress-control p{color:#a15d67;margin:7px 0 0;font-size:11px}.admin-subheading{color:#2b396b;margin:34px 0 12px;font-size:18px}.library-source-sheet{max-width:920px;margin:0 auto}.library-source-sheet>h2{color:#2e64bf;text-align:center;letter-spacing:-.055em;margin:0 0 17px;font-size:clamp(25px,3.25vw,38px);line-height:1.2}.library-source-sheet>h2 span{font-family:Georgia,serif;font-weight:500}.library-source-sheet>h2 em{color:#0ca996;margin:0 3px;font-size:.68em;font-style:normal;display:inline-block;transform:translateY(-.05em)}.library-source-table{background:#fff;border:1px solid #dbe0eb;border-radius:14px;overflow:hidden;box-shadow:0 8px 24px #2638730a}.library-phone-compare{border-radius:12px;grid-template-columns:1fr 1fr;align-items:stretch;gap:0;max-width:760px;display:grid;overflow:hidden;box-shadow:0 8px 24px #2638730a}.phone-compare-column{box-sizing:border-box;height:100%;padding:16px 18px}.phone-compare-column>b{margin-bottom:9px;font-size:clamp(18px,2.25vw,27px);display:block}.phone-compare-column p{border-top:1px solid #ffffff8a;margin:0;padding:13px 0;font-size:clamp(15px,1.8vw,21px);font-weight:700;line-height:1.38}.phone-compare-column p span,.phone-compare-column p strong{display:block}.phone-compare-column p span{margin-bottom:3px;font-size:.9em;font-weight:500}.phone-compare-column p strong{font-weight:800}.phone-compare-column.natural mark{color:inherit;background:#fff000;padding:0 2px}.phone-compare-column.natural p span,.phone-compare-column.natural p strong{display:inline}.phone-compare-column.natural p span{margin:0 .35em 0 0}.phone-compare-heading,.phone-compare-cell{box-sizing:border-box;padding:13px 18px}.phone-compare-heading{font-size:clamp(18px,2.25vw,27px)}.phone-compare-cell{border-top:1px solid #ffffff8a;font-size:clamp(15px,1.8vw,21px);line-height:1.38}.phone-compare-cell span,.phone-compare-cell strong{font-size:inherit;display:block}.phone-compare-cell span{margin-bottom:3px;font-weight:500}.phone-compare-cell strong{font-weight:800}.phone-compare-heading.textbook,.phone-compare-cell.textbook{color:#173d72;background:#a8cdfd}.phone-compare-heading.natural,.phone-compare-cell.natural{color:#4f3a00;background:#ffe08a}.phone-compare-cell.natural{font-size:calc(clamp(15px,1.8vw,21px) + 5px)}.phone-compare-cell{align-self:stretch;min-height:100%}.phone-compare-cell.natural span{white-space:nowrap}.phone-compare-column.textbook{color:#173d72;background:#a8cdfd}.phone-compare-column.natural{color:#4f3a00;background:#ffe08a}.library-source-head,.library-source-row{grid-template-columns:25% 42% 33%;display:grid}.library-source-head{color:#fff;background:#24345f;font-size:clamp(15px,2vw,23px);font-weight:800}.library-source-head span{border-right:1px solid #5b688c;padding:11px 13px}.library-source-head span:last-child{border-right:0}.library-source-row{border-top:1px solid #e1e5ed}.library-source-row>div{border-right:1px solid #e1e5ed;min-width:0;padding:14px 13px}.library-source-row>div:last-child{border-right:0}.source-chinese{background:#fff;align-items:center;display:flex}.source-chinese b{color:#303a4e;background:#e6f6ff;padding:2px 5px;font-size:clamp(16px,1.9vw,24px);line-height:1.42;display:inline}.source-mistake{background:#fff}.source-mistake strong{color:#273144;background:#f2f4f7;padding:2px 5px;font-size:clamp(14px,1.7vw,21px);font-weight:600;line-height:1.45;display:inline}.source-mistake p{color:#596579;white-space:pre-line;margin:8px 0 0;font-size:clamp(11px,1.15vw,13px);line-height:1.58}.source-natural strong{color:#263044;-webkit-box-decoration-break:clone;box-decoration-break:clone;background:#ffe0e0;padding:2px 5px;font-size:clamp(15px,1.8vw,22px);font-weight:800;line-height:1.45;display:inline}.source-example{color:#33405b;flex-direction:column;gap:3px;margin-top:10px;font-size:12px;line-height:1.5;display:flex}.source-example span{color:#6f7a90}.library-source-side{width:100%;box-shadow:none;background:#f5f7ff;border:1px solid #dfe4f3;border-radius:14px;align-items:center;gap:18px;margin-top:16px;padding:16px 18px;display:flex;position:static}.library-source-side>div{flex-direction:column;gap:4px;display:flex}.library-source-side .library-progress-control{min-width:166px;margin-left:auto}.library-source-side .library-complete{margin-top:0}.library-source-side>a{margin:0 0 0 auto}@media (max-width:760px){.library-hero{padding:65px 0 125px}.library-hero h1{font-size:43px}.library-hero-stats{bottom:23px;right:20px}.library-series-grid,.library-latest-grid{grid-template-columns:1fr}.library-series-card{min-height:190px}.library-guidance-overview{grid-template-columns:1fr}.library-method-card{padding:17px}.library-guidance,.library-copyright{padding:21px}.library-continue{align-items:flex-start;padding:21px}.library-continue a{margin-top:6px}.library-latest-grid article h3{min-height:auto}.library-issue-row{grid-template-columns:40px minmax(0,1fr) 18px;gap:10px;padding:16px}.issue-meta{color:#0000;white-space:nowrap;width:18px;overflow:hidden}.issue-meta svg{color:#72809b;flex:none}.library-learn-flow{grid-template-columns:1fr}.library-lesson-side{order:-1;position:static}.library-flow-step{padding:19px}.library-compare{overflow-x:auto}.library-compare>div{min-width:600px}.library-lesson-heading h1,.library-series-hero h1{font-size:42px}.library-series-hero{padding-top:32px}.library-source-sheet{width:100%}.library-source-sheet>h2{white-space:nowrap;margin-bottom:14px;font-size:clamp(20px,7.5vw,29px)}.library-source-table{border-radius:10px;overflow:hidden}.library-source-head,.library-source-row{grid-template-columns:25% 41% 34%;min-width:0}.library-source-head{font-size:clamp(10px,3.3vw,14px)}.library-source-head span{word-break:break-all;padding:9px 6px}.library-source-row>div{overflow-wrap:anywhere;padding:10px 6px}.source-chinese b{font-size:clamp(14px,4.5vw,19px)}.source-mistake strong{font-size:clamp(12px,3.8vw,16px)}.source-mistake p{margin-top:6px;font-size:clamp(9px,2.9vw,12px);line-height:1.5}.source-natural strong{font-size:clamp(12px,4vw,17px)}.source-example{margin-top:7px;font-size:10px}.library-source-side{flex-wrap:wrap;align-items:flex-start}.library-source-side .library-progress-control{margin-left:0}}.card-link{padding:8px 18px 15px;display:block}.card-link h2{color:#24325e;letter-spacing:-.03em;margin:0 0 15px;font-size:19px}.mistake,.natural{margin:0 0 7px;font-size:14px;line-height:1.45}.mistake{color:#707484;-webkit-text-decoration:line-through #d09197;text-decoration:line-through #d09197}.natural{color:#2e459e;font-weight:700}.mistake span,.natural span{width:49px;margin-right:5px;font-size:11px;text-decoration:none;display:inline-block}.mistake span{color:#b66774}.natural span{color:#478150}.summary{-webkit-line-clamp:2;color:#7a7e8d;-webkit-box-orient:vertical;min-height:38px;margin:12px 0;font-size:12px;line-height:1.6;display:-webkit-box;overflow:hidden}.card-bottom{color:#9396a3;border-top:1px solid #eeeeef;justify-content:space-between;align-items:center;margin-top:13px;padding-top:11px;font-size:11px;display:flex}.card-bottom svg{color:#6470aa}.empty-state{text-align:center;color:#848896;max-width:560px;margin:55px auto}.empty-state>span{color:#6874b0;margin-bottom:12px;font-size:44px;display:block}.empty-state h1,.empty-state h2{color:#2b3864;letter-spacing:-.04em;margin:0;font-size:25px}.empty-state p{margin:11px auto 20px;font-size:14px;line-height:1.7}.empty-state a{color:#fff;background:#293f9c;border-radius:9px;align-items:center;gap:7px;padding:11px 15px;font-size:13px;font-weight:700;display:inline-flex}.pagination{justify-content:center;gap:6px;margin-top:34px;display:flex}.pagination a{color:#666d86;border-radius:8px;place-items:center;width:34px;height:34px;font-size:13px;display:grid}.pagination a[aria-current]{color:#fff;background:#273f9d}.expression-results-list{gap:12px;display:grid}.expression-list-item{grid-template-columns:170px minmax(0,1fr);gap:0 18px;padding:18px 20px;display:grid}.expression-list-item .card-top{grid-area:1/1/span 2;align-items:flex-start}.expression-list-item .card-link{grid-column:2}.expression-list-item h2{margin-top:0}@media (max-width:640px){.expression-list-item{display:block}.expression-list-item .card-top{margin-bottom:10px}}.page-title{font-size:46px;line-height:1.07}.page-intro{max-width:460px;margin-bottom:45px;font-size:15px;line-height:1.75}.category-list{gap:34px;display:grid}.category-group>div:first-child{justify-content:space-between;align-items:center;margin-bottom:13px;display:flex}.category-group h2{color:#26345e;margin:0;font-size:21px}.category-group>div:first-child a{color:#616aa0;align-items:center;gap:4px;font-size:13px;display:flex}.subcategories{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.subcategories a{background:#fff;border:1px solid #e6e6eb;border-radius:12px;padding:18px;position:relative}.subcategories b,.subcategories small{display:block}.subcategories b{color:#374369;font-size:15px}.subcategories small{color:#989ca9;margin-top:6px;font-size:11px}.subcategories svg{color:#6973aa;position:absolute;top:24px;right:16px}.category-chips{flex-wrap:wrap;gap:9px;margin:23px 0 34px;display:flex}.category-chips a{color:#536092;border:1px solid #d9dce5;border-radius:999px;padding:8px 12px;font-size:13px}.category-chips small{color:#999;margin-left:5px}.expression-page{max-width:850px;padding-top:32px;padding-bottom:80px}.back-link{color:#66709d;align-items:center;gap:6px;font-size:13px;display:inline-flex}.expression-detail{background:#fff;border:1px solid #e5e5e7;border-radius:20px;margin-top:22px;padding:clamp(25px,5vw,52px)}.detail-head{border-bottom:1px solid #ececed;justify-content:space-between;gap:20px;padding-bottom:32px;display:flex}.detail-meta{color:#747ca9;font-size:12px}.detail-head h1{color:#25325e;letter-spacing:-.055em;margin:12px 0 0;font-size:clamp(30px,5vw,46px)}.save-detail{white-space:nowrap;color:#515d88;background:#fff;border:1px solid #dfe1e9;border-radius:9px;align-self:start;align-items:center;gap:6px;padding:9px 12px;font-size:13px;display:flex}.expression-block{border-radius:12px;margin-top:28px;padding:21px}.block-label{margin:0 0 10px;font-size:12px;font-weight:700}.block-label span{border-radius:99px;place-items:center;width:18px;height:18px;margin-right:5px;display:inline-grid}.expression-block strong{letter-spacing:-.035em;font-size:clamp(20px,3vw,28px);display:block}.expression-block small{color:#818593;margin-top:9px;font-size:12px;display:block}.mistake-block{color:#9d5962;background:#fdf3f2}.mistake-block .block-label span{color:#a8515c;background:#ebc9cb}.natural-block{color:#275a40;background:#f0f6f0}.natural-block .block-label span{color:#377950;background:#cee4d4}.tags{flex-wrap:wrap;gap:7px;margin-top:16px;display:flex}.tags span,.alternative-list span{color:#66806f;background:#fff9;border-radius:7px;padding:5px 8px;font-size:11px}.detail-section{margin-top:37px}.detail-section h2{color:#293660;letter-spacing:-.035em;margin:0 0 13px;font-size:19px}.detail-section>p{color:#606677;margin:0;font-size:15px;line-height:1.9}.example-list{gap:10px;display:grid}.example-list blockquote{background:#f7f8fd;border-left:3px solid #aab4e5;margin:0;padding:15px 18px}.example-list p{color:#3b4981;margin:0;font-size:16px;line-height:1.6}.example-list footer{color:#828796;margin-top:7px;font-size:13px}.alternative-list{flex-wrap:wrap;gap:8px;display:flex}.alternative-list span{color:#526195;background:#fff;border:1px solid #e2e5ec;font-size:13px}.related{margin-top:42px}.related h2{color:#293660;font-size:19px}.related a{border-bottom:1px solid #e8e8eb;justify-content:space-between;gap:16px;padding:14px 0;display:flex}.related b{color:#3a4670;font-size:14px}.related span{color:#6170a6;font-size:13px}.member-callout{color:#5343ac;background:#efecff;border-radius:13px;align-items:center;gap:12px;margin-top:30px;padding:18px 21px;display:flex}.member-callout div{gap:3px;display:grid}.member-callout b{font-size:13px}.member-callout span{color:#8176b8;font-size:11px}.member-callout a{color:#fff;white-space:nowrap;background:#5e4abe;border-radius:7px;margin-left:auto;padding:8px 10px;font-size:12px}.full-page{place-content:center;min-height:100vh;padding:30px;display:grid}.auth-page{background:linear-gradient(135deg,#f5f2ff,#f8f7f1);place-items:center;min-height:calc(100vh - 72px);padding:40px 20px;display:grid}.auth-page section{background:#fff;border:1px solid #e0ddeb;border-radius:20px;width:min(430px,100%);padding:42px;box-shadow:0 20px 45px #20295c12}.auth-page h1{color:#243263;letter-spacing:-.06em;margin:0;font-size:34px;line-height:1.08}.auth-page>section>p:not(.eyebrow){color:#7d8294;font-size:14px;line-height:1.7}.login-form{gap:14px;margin-top:28px;display:grid}.login-form label{color:#4d5675;gap:7px;font-size:13px;font-weight:700;display:grid}.login-form input{border:1px solid #d9dce5;border-radius:9px;outline-color:#5365ba;height:46px;padding:0 13px}.login-form button{color:#fff;background:#293f9c;border:0;border-radius:9px;height:46px;font-weight:700}.login-form p{color:#5d4db0;margin:0;font-size:13px}.login-form small{color:#979baa;font-size:11px;line-height:1.5}.redeem-note{color:#989dac;margin:22px 0;font-size:12px;line-height:1.6}.ai-page{max-width:850px;padding-top:72px;padding-bottom:90px}.ai-page h1{color:#243263;letter-spacing:-.06em;margin:0;font-size:clamp(34px,5vw,55px)}.ai-form{background:#fff;border:1px solid #dfe2ee;border-radius:16px;margin-top:35px;padding:15px;box-shadow:0 12px 30px #28305c0d}.ai-task-picker{color:#3d486a;align-items:center;gap:9px;margin:2px 4px 14px;padding:0;font-size:15px;font-weight:600;display:inline-flex;position:relative}.ai-task-trigger{color:#354891;min-height:38px;font:inherit;cursor:pointer;background:#fff;border:1px solid #d7dcef;border-radius:9px;align-items:center;gap:9px;padding:7px 10px 7px 13px;font-weight:700;display:inline-flex;box-shadow:0 1px 3px #3548910d}.ai-task-trigger:hover,.ai-task-trigger:focus-visible{background:#f8f9ff;border-color:#8493cf;outline:none}.ai-task-options{z-index:5;background:#fff;border:1px solid #e0e4f0;border-radius:11px;width:min(286px,100vw - 64px);padding:5px;display:grid;position:absolute;top:calc(100% + 7px);left:53px;box-shadow:0 14px 32px #2432631f}.ai-task-options button{color:#4d5773;min-height:39px;font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:8px;justify-content:space-between;align-items:center;padding:8px 10px;font-size:14px;display:flex}.ai-task-options button:hover,.ai-task-options button:focus-visible{color:#354891;background:#f7f8fd;outline:none}.ai-task-options button.selected{color:#354891;background:#eeeefe;outline:none;font-weight:700}.ai-form textarea{resize:vertical;width:100%;min-height:158px;font:inherit;color:#303958;border:0;outline:0;padding:8px;font-size:16px;line-height:1.7;display:block}.ai-form-footer{border-top:1px solid #eee;justify-content:space-between;align-items:center;padding:10px 5px 0;display:flex}.ai-form-footer span{color:#9094a2;font-size:12px}.ai-form-footer button{color:#fff;background:#4f3fb2;border:0;border-radius:9px;padding:11px 16px;font-weight:700}.ai-form-footer button:disabled{opacity:.55}.ai-error{color:#b75963;margin-top:15px;font-size:14px}.ai-result{background:#f1f4ff;border-radius:16px;margin-top:24px;padding:29px}.ai-result h2{color:#344997;letter-spacing:-.04em;margin:4px 0 13px;font-size:28px}.ai-result>p:not(.eyebrow):not(.ai-related){color:#555d76;margin:0;line-height:1.8}.ai-examples{gap:9px;margin-top:20px;display:grid}.ai-examples blockquote{background:#fff;border-left:3px solid #a7b3e3;margin:0;padding:13px 15px}.ai-examples b,.ai-examples span{display:block}.ai-examples b{color:#344997;font-size:15px}.ai-examples span{color:#7e8495;margin-top:5px;font-size:13px}.ai-related{color:#7b83a5;margin:17px 0 0;font-size:12px}.ai-locked{text-align:center;color:#584ab0;background:#f7f4ff;border:1px solid #ded8f4;border-radius:16px;margin-top:35px;padding:34px}.ai-locked h2{margin:13px 0 5px;font-size:20px}.ai-locked p{color:#8279ad;margin:0 0 18px;font-size:14px}.ai-locked a{color:#fff;background:#5c49ba;border-radius:8px;padding:10px 14px;font-size:13px;font-weight:700;display:inline-block}.ai-module-switcher{color:#7b83a1;align-items:center;gap:9px;width:fit-content;margin-bottom:28px;font-size:12px;display:flex;position:relative}.ai-module-trigger{color:#344994;background:#fff;border:1px solid #d5d9eb;border-radius:9px;align-items:center;gap:7px;padding:8px 10px;font-size:13px;display:inline-flex;box-shadow:0 3px 10px #2b3c7c0d}.ai-module-trigger svg:last-child{color:#7a83a5}.ai-module-menu{z-index:10;background:#fff;border:1px solid #d9ddec;border-radius:12px;width:290px;position:absolute;top:calc(100% + 8px);left:0;overflow:hidden;box-shadow:0 15px 35px #212c5926}.ai-module-menu a{color:#55607d;grid-template-columns:auto 1fr auto;align-items:center;gap:10px;padding:13px;display:grid}.ai-module-menu a:hover,.ai-module-menu a[aria-current=page]{color:#35499e;background:#f3f4ff}.ai-module-menu span{gap:3px;display:grid}.ai-module-menu b{font-size:13px}.ai-module-menu small{color:#7d859a;font-size:11px}.ai-module-menu a>svg:last-child{color:#4b65bd}.account-card{background:#fff;border:1px solid #e2e3e9;border-radius:16px;max-width:620px;margin-top:35px;padding:28px}.account-card h2{color:#293660;margin:0 0 14px;font-size:19px}.account-card>b{color:#4e42ad}.account-card p{color:#767c90;font-size:14px}.redeem-form{flex-wrap:wrap;gap:10px;margin-top:22px;display:flex}.redeem-form input{text-transform:uppercase;border:1px solid #d8dbe4;border-radius:8px;flex:1;min-width:190px;height:42px;padding:0 12px}.redeem-form button{color:#fff;background:#293f9c;border:0;border-radius:8px;height:42px;padding:0 18px;font-weight:700}.redeem-form p{color:#5d4db0;width:100%;margin:0;font-size:13px}@media (max-width:700px){.shell{width:min(100% - 32px,1120px)}.site-header{height:62px}.desktop-nav{display:none}.mobile-menu{z-index:12;cursor:pointer;border-radius:8px;padding:7px;display:block;position:relative}.mobile-nav-backdrop{z-index:9;background:#111b402e;border:0;display:block;position:fixed;inset:62px 0 0}.mobile-navigation{z-index:10;background:#fff;border:1px solid #dde1ed;border-radius:14px;width:min(280px,100vw - 32px);padding:9px;display:grid;position:absolute;top:62px;right:16px;box-shadow:0 18px 40px #1723532b}.mobile-navigation a{color:#42506e;border-radius:8px;padding:13px 12px;font-size:15px}.mobile-navigation a:hover,.mobile-navigation a:active{color:#233a94;background:#f1f3fb}.mobile-navigation .mobile-login-link{color:#fff;text-align:center;background:#293f9c;margin-top:4px;font-weight:700}.mobile-navigation .mobile-account-link{color:#293f9c;border-top:1px solid #e8eaf0;margin-top:4px;font-weight:700}.hero{padding:65px 0 60px}.hero h1{font-size:40px}.hero-copy{margin:20px 0 23px;font-size:15px}.search-field{border-radius:12px;gap:8px;height:58px;padding-left:14px}.search-field input{font-size:14px}.search-field button{height:46px;padding:0 14px}.scene-section{padding:55px 0}.section-heading h2{font-size:21px}.section-heading>a{font-size:12px}.scene-grid,.steps{grid-template-columns:1fr 1fr;gap:10px}.scene-card{min-height:154px;padding:16px}.scene-card h3{margin-top:20px;font-size:15px}.how-section{padding:52px 0}.steps{grid-template-columns:1fr;gap:26px}.bottom-cta{align-items:flex-start;margin:45px auto;padding:24px}.bottom-cta h2{font-size:17px}.bottom-cta a{font-size:0}.bottom-cta a svg{width:21px;height:21px}.footer span{display:none}.content-page{padding-top:35px}.ai-task-picker{gap:7px}.ai-task-options{top:calc(100% + 7px);left:0}.page-search{margin-bottom:33px}.results-heading h1{font-size:24px}.results-grid{grid-template-columns:1fr}.page-title{font-size:37px}.subcategories{grid-template-columns:1fr}.category-group{margin-bottom:6px}.expression-detail{border-radius:15px;padding:24px 18px}.detail-head{padding-bottom:24px}.save-detail{padding:9px;font-size:0}.save-detail svg{margin:0}.member-callout{align-items:flex-start}.member-callout a{padding:9px;font-size:0}.member-callout a:after{content:"→";font-size:16px}.related a{gap:4px;display:grid}.related span{text-align:left}.suggestions em{text-overflow:ellipsis;white-space:nowrap;max-width:45%;overflow:hidden}.hero-orb{opacity:.38}.ai-module-switcher{margin-bottom:22px}.ai-module-switcher>span{display:none}.ai-module-trigger{min-height:40px;padding:9px 11px}.ai-module-menu{width:min(290px,100vw - 32px)}.ai-module-menu a{min-height:58px}}.admin-shell .page-title{font-size:inherit;justify-content:space-between;align-items:start;gap:20px;display:flex}.primary-link,.secondary-link{border-radius:8px;padding:10px 14px;font-size:14px;display:inline-block}.primary-link{color:#fff;background:#394a9c}.secondary-link{color:#465697;background:#fff;border:1px solid #cfd5e8}.row-actions{align-items:center;gap:10px;display:flex}.row-actions>a{color:#465697;font-size:12px}.expression-editor{gap:18px;margin-top:26px;display:grid}.expression-editor>section,.admin-card{background:#fff;border:1px solid #e2e4eb;border-radius:12px;padding:22px}.expression-editor h2,.admin-card h2{margin:0 0 18px;font-size:18px}.expression-editor h3{margin:0 0 10px;font-size:14px}.form-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.form-grid label,.wide-label,.admin-form label{color:#555e75;gap:6px;font-size:13px;display:grid}.expression-editor input,.expression-editor textarea,.expression-editor select,.admin-form input,.admin-form select{color:#283152;background:#fff;border:1px solid #d8dce7;border-radius:7px;width:100%;padding:9px 10px}.expression-editor textarea{resize:vertical}.expression-editor input::placeholder,.expression-editor textarea::placeholder,.rich-block-editor-card input::placeholder,.rich-block-editor-card textarea::placeholder{color:#98a1b5;opacity:1;transition:opacity .15s}.expression-editor input:focus::placeholder,.expression-editor textarea:focus::placeholder,.rich-block-editor-card input:focus::placeholder,.rich-block-editor-card textarea:focus::placeholder{opacity:0}.wide-label{margin-top:14px}.check{color:#4f5871;align-items:center;gap:8px;margin-top:12px;font-size:13px;display:flex!important}.check input{width:auto}.choice-grid{grid-template-columns:1fr 1fr;gap:28px;max-height:280px;display:grid;overflow:auto}.editor-actions{align-items:center;gap:14px;display:flex}.editor-actions button,.admin-form button,.taxonomy-item button{color:#fff;background:#394a9c;border:0;border-radius:7px;padding:10px 14px;font-size:13px}.editor-actions p{color:#39755a;font-size:13px}.taxonomy-manager{margin-top:26px}.taxonomy-list{grid-template-columns:1fr 1fr;gap:18px;margin-top:18px;display:grid}.taxonomy-list>section{background:#fff;border:1px solid #e2e4eb;border-radius:12px;padding:20px}.taxonomy-list h2{margin:0 0 14px;font-size:18px}.taxonomy-item,.metric-row{border-bottom:1px solid #eef0f3;align-items:center;gap:12px;padding:10px 0;font-size:13px;display:flex}.taxonomy-item:last-child,.metric-row:last-child{border-bottom:0}.taxonomy-item small{color:#858a9a;margin-left:auto}.taxonomy-item button{color:#a04d57;background:#fff;border:1px solid #e7c8ce;padding:6px 9px}.code-reveal{color:#286943;background:#edf5ed;border-radius:8px;margin-top:15px;padding:12px}.import-row{border-bottom:1px solid #eef0f3;grid-template-columns:1.4fr .9fr .7fr 1fr 1.5fr;align-items:center;gap:15px;padding:14px 18px;font-size:13px;display:grid}.import-row small{color:#687086;word-break:break-word}.metric-row b{color:#394a9c;margin-left:auto}@media (max-width:700px){.admin-shell .page-title,.choice-grid,.taxonomy-list,.form-grid{grid-template-columns:1fr;display:grid}.admin-shell .page-title{align-items:stretch}.import-row{grid-template-columns:1fr}.import-row.admin-head{display:none}.admin-shell>section{width:min(100% - 28px,1120px);padding:32px 0}.admin-shell h1{font-size:30px}.row-actions{justify-content:end}.choice-grid{max-height:none}}.member-manager{margin-top:26px}.member-search{gap:10px;margin-bottom:16px;display:flex}.member-search input,.grant-form input,.grant-form select{color:#283152;background:#fff;border:1px solid #d8dce7;border-radius:7px;padding:9px 10px}.member-search input{width:min(420px,100%)}.member-search button,.grant-form button,.entitlement-list button{color:#fff;background:#394a9c;border:0;border-radius:7px;padding:9px 12px;font-size:13px}.user-list{gap:14px;margin-top:18px;display:grid}.user-card{background:#fff;border:1px solid #e2e4eb;border-radius:12px;padding:18px 20px}.user-card>div:first-child{display:inline-block}.user-card>div:first-child b{color:#33416e}.user-card>div:first-child p{color:#7d8496;margin:5px 0 0;font-size:13px}.user-card>.admin-action{float:right}.grant-form{border-top:1px solid #eef0f3;grid-template-columns:1fr 140px 1.3fr auto;align-items:end;gap:10px;margin-top:18px;padding-top:16px;display:grid}.grant-form label{color:#555e75;gap:6px;font-size:12px;display:grid}.entitlement-list{gap:6px;margin-top:18px;display:grid}.entitlement-list>div{border-top:1px solid #eef0f3;grid-template-columns:1.2fr 1.5fr auto;align-items:center;gap:12px;padding:9px 0;font-size:13px;display:grid}.entitlement-list small{color:#7f8698}.entitlement-list button{color:#a04d57;background:#fff;border:1px solid #e7c8ce;padding:6px 9px}@media (max-width:700px){.member-search{display:grid}.member-search input{width:100%}.grant-form,.entitlement-list>div{grid-template-columns:1fr}.user-card>.admin-action{float:none;margin-top:12px}}.import-manager{gap:18px;margin-top:26px;display:grid}.import-controls{flex-wrap:wrap;align-items:center;gap:12px;margin:18px 0 10px;display:flex}.import-controls input{max-width:100%;font-size:13px}.import-controls button,.confirm-import button{color:#fff;background:#394a9c;border:0;border-radius:7px;padding:10px 14px;font-size:13px}.import-controls button:disabled,.confirm-import button:disabled{opacity:.55}.import-manager small{color:#7d8496;font-size:12px}.import-manager>.admin-card>p[aria-live]{color:#39755a;font-size:13px}.import-report{background:#fff;border:1px solid #e2e4eb;border-radius:12px;padding:22px}.import-report h2{margin:0 0 12px;font-size:18px}.import-stats{margin:16px 0}.issue-list{border-top:1px solid #eef0f3;max-height:300px;overflow:auto}.issue-list p{color:#9b5660;border-bottom:1px solid #eef0f3;margin:0;padding:9px 0;font-size:13px}.confirm-import{color:#286943;background:#edf5ed;border-radius:8px;padding:14px}.confirm-import p{margin:0 0 12px;font-size:13px;line-height:1.6}@media (max-width:700px){.import-controls{display:grid}.import-controls button{width:100%}}.search-filters{flex-wrap:wrap;align-items:end;gap:10px;margin:-12px 0 32px;display:flex}.search-filters label{color:#71778b;gap:5px;font-size:12px;display:grid}.search-filters select{color:#38415e;background:#fff;border:1px solid #d8dce7;border-radius:7px;width:180px;min-height:38px;padding:8px 9px;line-height:1.2;display:block}.search-filters button,.download-report{color:#465697;background:#fff;border:1px solid #cfd5e8;border-radius:7px;padding:9px 12px;font-size:13px}.download-report{margin:0 0 10px}.account-link{color:#43538d}.logout-link{color:#6f7486;cursor:pointer;font:inherit;background:0 0;border:0;font-size:14px}.logout-link:disabled{opacity:.55}.course-editor{max-width:980px}.course-lessons-admin{margin-top:28px}.course-lessons-admin>.section-heading{margin-bottom:16px}.lesson-admin-form{background:#fff;border:1px solid #e0e4ed;border-radius:12px;margin-bottom:14px;padding:20px}.lesson-admin-form .wide-label{margin-top:15px}.lesson-admin-form button,.expression-editor>button{color:#fff;background:#2b409b;border:0;border-radius:8px;margin-top:17px;padding:10px 15px;font-size:13px;font-weight:700}.lesson-admin-form button:disabled,.expression-editor>button:disabled{opacity:.55}.new-lesson{background:#fafbff;border:1px dashed #bdc5d9;border-radius:12px;margin-top:16px;padding:17px}.new-lesson summary{cursor:pointer;color:#334b9d;font-weight:700}.new-lesson .lesson-admin-form{margin:16px 0 0}.admin-feedback{color:#397853;font-size:14px}.ai-scores{grid-template-columns:repeat(3,1fr);gap:9px;margin:0 0 22px;display:grid}.ai-scores div{background:#f2f4fc;border-radius:10px;padding:13px}.ai-scores b,.ai-scores span{display:block}.ai-scores b{color:#263b91;font-size:27px;line-height:1}.ai-scores span{color:#6e7690;margin-top:5px;font-size:11px}.ai-problems{margin:25px 0}.ai-problems h3{color:#293765;margin:0 0 10px;font-size:16px}.ai-problems article{background:#fff8f8;border-left:3px solid #d9969d;border-radius:6px;margin-top:8px;padding:12px}.ai-problems article>span{color:#a7626b;font-size:11px;font-weight:700}.ai-problems p{flex-wrap:wrap;gap:9px;margin:6px 0;display:flex}.ai-problems del{color:#9b7478}.ai-problems p b{color:#39734e}.ai-problems small{color:#6e7383;line-height:1.5}.errors-page{padding-top:72px;padding-bottom:88px}.errors-page .page-title{font-size:clamp(40px,5.2vw,64px)}.error-stats{flex-wrap:wrap;gap:12px;margin:30px 0 38px;display:flex}.error-stats div{background:#fff;border:1px solid #e2e5ee;border-radius:12px;min-width:122px;padding:16px}.error-stats b,.error-stats span{display:block}.error-stats b{color:#2a4098;font-size:28px}.error-stats span{color:#71798e;margin-top:4px;font-size:12px}.error-list{max-width:820px}.error-list>.section-heading{margin-bottom:13px}.error-list>.section-heading>span{color:#768097;font-size:13px}.error-list article{border-top:1px solid #e3e6ed;grid-template-columns:48px 1fr;gap:15px;padding:17px 0;display:grid}.error-rank{color:#7a83a6;font-weight:700}.error-list small,.error-list del,.error-list b,.error-list p{display:block}.error-list small{color:#a4616a;font-size:12px}.error-list del{color:#8c7479;margin-top:6px}.error-list b{color:#357651;margin-top:6px;font-size:17px}.error-list p{color:#8a91a1;margin:7px 0 0;font-size:12px}@media (max-width:700px){.search-filters{margin-top:-12px;display:grid}.search-filters select{width:100%}}.training-page{padding-top:72px;padding-bottom:88px}.training-heading{justify-content:space-between;align-items:end;gap:28px;display:flex}.training-heading .page-title{font-size:clamp(40px,5.2vw,64px)}.training-day{color:#33469d;background:linear-gradient(145deg,#f0f1ff,#fff);border:1px solid #d9def1;border-radius:13px;grid-template-columns:auto 1fr;column-gap:8px;min-width:190px;padding:15px 17px;display:grid}.training-day svg{grid-row:span 2;margin-top:2px}.training-day b{font-size:13px}.training-day span{color:#747d98;margin-top:3px;font-size:12px}.training-list{max-width:820px;margin-top:36px}.training-progress{color:#727b95;grid-template-columns:auto auto 1fr;align-items:center;gap:12px;margin-bottom:15px;font-size:13px;display:grid}.training-progress b{color:#31469b;font-size:13px}.training-progress>div{background:#e5e8f4;border-radius:999px;height:7px;overflow:hidden}.training-progress i{border-radius:inherit;background:linear-gradient(90deg,#4a62bf,#8a78d4);height:100%;transition:width .25s;display:block}.training-card{background:#fff;border:1px solid #e0e4ee;border-radius:15px;margin-top:12px;padding:21px 22px;box-shadow:0 8px 25px #212f6209}.training-card.is-completed{background:#fcfffd;border-color:#cae8d4}.training-card-head{align-items:center;gap:9px;display:flex}.training-card-head>span{color:#7a84a8;font-size:12px;font-weight:700}.training-card-head small{color:#5461ad;background:#eff0ff;border-radius:999px;padding:4px 7px;font-size:11px;font-weight:700}.training-card-head em{color:#3c865b;align-items:center;gap:4px;margin-left:auto;font-size:12px;font-style:normal;display:inline-flex}.training-card h2{color:#273665;max-width:680px;margin:13px 0 0;font-size:18px;line-height:1.55}.training-hint{color:#778098;margin:10px 0 0;font-size:13px;line-height:1.6}.training-answer{background:#f1f6f2;border-radius:10px;margin-top:15px;padding:13px 15px}.training-answer span,.training-answer b{display:block}.training-answer span{color:#57906a;letter-spacing:.08em;font-size:11px;font-weight:700}.training-answer b{color:#2f6845;margin-top:5px;font-size:16px}.training-actions{justify-content:space-between;gap:12px;margin-top:18px;display:flex}.training-actions button{border-radius:8px;align-items:center;gap:5px;padding:9px 11px;font-size:12px;font-weight:700;display:inline-flex}.training-reveal{color:#5d69a9;background:0 0;border:0}.training-reveal svg{transition:transform .2s}.training-reveal[aria-expanded=true] svg{transform:rotate(180deg)}.training-complete{color:#387c55;background:#e7f4eb;border:0;margin-left:auto}.training-complete:disabled{opacity:.65}@media (max-width:700px){.training-page{padding-top:46px}.training-heading{display:block}.training-day{width:fit-content;margin-top:23px}.training-card{padding:18px}.training-card h2{font-size:16px}.training-actions{align-items:center}.training-actions button{padding:8px 9px}}.conversation-page{padding-top:72px;padding-bottom:88px}.conversation-page .page-title{font-size:clamp(40px,5.2vw,64px)}.conversation-layout{grid-template-columns:270px minmax(0,1fr);gap:20px;margin-top:38px;display:grid}.scenario-panel,.conversation-stage{background:#fff;border:1px solid #e0e4ef;border-radius:16px}.scenario-panel{align-self:start;padding:20px}.scenario-panel h2{color:#293864;margin:0 0 15px;font-size:18px;line-height:1.4}.scenario-panel>button{color:#68728d;text-align:left;background:0 0;border:1px solid #0000;border-radius:10px;gap:10px;width:100%;margin-top:7px;padding:11px;display:flex}.scenario-panel>button:hover,.scenario-panel>button.active{color:#35469d;background:#f2f3ff;border-color:#dce0f8}.scenario-panel>button span{gap:2px;display:grid}.scenario-panel>button b{font-size:13px}.scenario-panel>button small{color:#81899d;font-size:11px;line-height:1.35}.conversation-stage{min-height:560px;overflow:hidden}.conversation-stage>header{background:#fcfcff;border-bottom:1px solid #e9ebf1;justify-content:space-between;align-items:center;gap:15px;padding:18px 21px;display:flex}.conversation-stage header .eyebrow{margin-bottom:4px}.conversation-stage header h2{color:#293861;margin:0;font-size:16px}.conversation-stage header button{color:#57649c;background:#fff;border:1px solid #d3d9eb;border-radius:8px;padding:8px 10px;font-size:12px;font-weight:700}.conversation-messages{background:linear-gradient(135deg,#fbfbff,#fff);flex-direction:column;gap:16px;min-height:410px;max-height:590px;padding:23px;display:flex;overflow-y:auto}.conversation-message{max-width:84%}.conversation-message>span{color:#7e879d;margin-bottom:5px;font-size:11px;font-weight:700;display:block}.conversation-message>p{color:#37405f;background:#edf0fb;border-radius:4px 13px 13px;margin:0;padding:11px 13px;font-size:14px;line-height:1.6}.conversation-message.user{align-self:end}.conversation-message.user>span{text-align:right}.conversation-message.user>p{color:#fff;background:#344aab;border-radius:13px 4px 13px 13px}.conversation-feedback{background:#f7fcf8;border:1px solid #d7ecdc;border-radius:10px;margin-top:8px;padding:12px}.conversation-feedback>div{color:#6c7c7e;align-items:baseline;gap:5px;font-size:10px;display:flex}.conversation-feedback>div b{color:#3b8058;margin-left:4px;font-size:17px}.conversation-feedback>div b:first-child{margin-left:0}.conversation-feedback strong{color:#327149;margin-top:9px;font-size:15px;display:block}.conversation-feedback p{color:#5f7667;margin:5px 0;font-size:12px;line-height:1.5}.conversation-feedback small{color:#758279;margin-top:5px;font-size:11px;line-height:1.5;display:block}.conversation-feedback del{color:#a36a6e}.conversation-input{background:#fff;border-top:1px solid #e7e9ef;gap:10px;padding:14px;display:flex}.conversation-input textarea{resize:vertical;color:#34405f;min-height:50px;font:inherit;border:1px solid #d9ddea;border-radius:10px;flex:1;padding:11px;font-size:13px}.conversation-input button{color:#fff;background:#334aa9;border:0;border-radius:10px;align-self:end;place-items:center;width:43px;height:43px;display:grid}.conversation-input button:disabled{opacity:.5}.conversation-empty{color:#717a91;text-align:center;place-content:center;justify-items:center;min-height:560px;padding:30px;display:grid}.conversation-empty svg{color:#5d68b1}.conversation-empty h2{color:#2e3b68;margin:13px 0 0;font-size:20px}.conversation-empty p{max-width:300px;margin:9px 0 0;font-size:13px;line-height:1.6}.conversation-error{color:#ad5e67;background:#fff3f3;margin:0;padding:10px 14px;font-size:12px}.conversation-typing{color:#7f88a0;font-size:12px}.conversation-typing i{background:#6775b2;border-radius:99px;width:5px;height:5px;margin-right:3px;animation:1s infinite alternate kk-bounce;display:inline-block}.conversation-typing i:nth-child(2){animation-delay:.15s}.conversation-typing i:nth-child(3){animation-delay:.3s}@keyframes kk-bounce{to{transform:translateY(-4px)}}.conversation-input .conversation-mic{color:#465bb1;background:#f5f6ff;border:1px solid #cfd6eb}.conversation-input .conversation-mic.listening{color:#b44955;background:#fff0f1;border-color:#cc626c;animation:1.1s infinite kk-mic-pulse}.conversation-voice-status{color:#596bb2;margin:-3px 14px 11px;font-size:12px}@keyframes kk-mic-pulse{50%{box-shadow:0 0 0 5px #c0505d1f}}.source-pdf-reader{background:#fff;border:1px solid #dfe4ee;border-radius:16px;overflow:hidden;box-shadow:0 10px 28px #2638730c}.source-pdf-toolbar{color:#263869;border-bottom:1px solid #e4e8f0;justify-content:space-between;align-items:center;gap:18px;padding:14px 18px;display:flex}.source-pdf-toolbar div{flex-direction:column;gap:3px;display:flex}.source-pdf-toolbar b{font-size:14px}.source-pdf-toolbar span{color:#78839a;font-size:12px}.source-pdf-toolbar a{color:#30489f;align-items:center;gap:6px;font-size:12px;font-weight:700;display:inline-flex}.source-pdf-reader iframe{background:#f4f5f8;border:0;width:100%;height:min(76vh,980px);display:block}.library-original-lesson{max-width:920px;margin:0 auto}.library-original-section{background:#fff;border:1px solid #dbe0eb;border-radius:16px;overflow:hidden;box-shadow:0 8px 24px #2638730a}.library-original-section>.eyebrow{margin:24px 28px 0}.library-original-section h2{color:#2e64bf;text-align:center;letter-spacing:-.055em;margin:7px 28px 23px;font-size:clamp(25px,3.25vw,38px)}.library-original-section h2 span{font-family:Georgia,serif;font-weight:500}.library-original-section img{border-top:1px solid #edf0f4;width:100%;height:auto;display:block}.library-original-copy{background:#fff;border:1px solid #e1e5ee;border-radius:16px;margin-top:24px;padding:28px}.library-original-copy>.eyebrow{margin:0 0 16px}.library-original-copy p{color:#4c5871;white-space:pre-line;margin:0;font-size:15px;line-height:1.85}.library-original-copy p+p{border-top:1px solid #edf0f4;margin-top:18px;padding-top:18px}.library-step-four-copy{background:0 0;border:0;border-radius:0;gap:14px;margin-top:0;padding:0;display:grid}.library-knowledge-card{background:#e9f8ff;border:1px solid #a9d9ef;border-radius:10px;padding:20px 22px}.library-knowledge-card p{color:#2f415a;white-space:pre-line;margin:0;font-size:14px;line-height:1.85}.library-knowledge-card p:first-child{color:#263b54;font-size:16px;font-weight:800}.library-knowledge-card p+p{border-top:0;margin-top:12px;padding-top:0}.rich-lesson-content{gap:22px;display:grid}.ted-quote-document{background:#fff;border:1px solid #dce5ed;border-radius:14px;gap:26px;padding:24px 26px;display:grid}.ted-quote-document-section+.ted-quote-document-section{border-top:1px solid #e8edf3;padding-top:22px}.ted-quote-document-section h2{color:#283a5a;margin:0 0 13px;font-size:17px;line-height:1.4}.ted-quote-document-section h2:before{content:"•";color:#2384c5;margin-right:7px}.ted-quote-document-entries{gap:9px;display:grid}.ted-quote-document-quote,.ted-quote-document-paragraph,.ted-quote-document-card p{white-space:pre-line;margin:0}.ted-quote-document-quote{color:#176fc4;border-left:2px solid #84cceb;padding-left:10px;font-size:15px;font-weight:650;line-height:1.7}.ted-quote-document-paragraph{color:#6d7582;font-size:13px;line-height:1.7}.ted-quote-document-card{background:#e7f8ff;border:1px solid #aee0ed;border-radius:7px;grid-template-columns:26px minmax(0,1fr);align-items:start;gap:8px;padding:11px 13px;display:grid}.ted-quote-document-card>span{background:#d4f1e0;border-radius:6px;place-items:center;width:22px;height:22px;font-size:13px;display:grid}.ted-quote-document-card p{color:#34495a;font-size:15px;line-height:1.65}.ted-quote-document-status{color:#397c91;margin-top:3px;font-size:12px;font-weight:700;display:block}.rich-lesson-text,.rich-lesson-table-section,.rich-lesson-callout{background:#fff;border:1px solid #e1e5ee;border-radius:16px;padding:26px}.rich-lesson-text h2,.rich-lesson-table-section h2,.rich-lesson-callout h2{color:#263b67;margin:0 0 16px;font-size:20px}.rich-lesson-callout h3{color:#4b5b91;margin:15px 0 7px;font-size:15px}.rich-lesson-callout h2+h3{margin-top:0}.rich-lesson-callout-list-item{padding-left:4px}.rich-lesson-callout-list-item.is-nested{padding-left:22px}.rich-lesson-callout-divider{background:#dfe3ec;border:0;height:1px;margin:16px 0}.rich-lesson-callout blockquote{color:#52607e;background:#f7f8fc;border-left:3px solid #aab7de;border-radius:0 7px 7px 0;margin:13px 0;padding:9px 12px}.rich-lesson-callout blockquote>span{display:inline}.rich-lesson-text p{color:#3d4a61;margin:0;font-size:16px;line-height:1.8}.rich-lesson-text p+p{margin-top:7px}.rich-lesson-list-item{padding-left:3px}.rich-lesson-table-section{overflow:hidden}.rich-lesson-table-heading{justify-content:space-between;align-items:center;gap:16px;margin-bottom:16px;display:flex}.rich-lesson-table-section h2{color:#2384c5;margin:0}.rich-lesson-expression-toggle{color:#176b9d;cursor:pointer;background:#fff;border:1px solid #8fcbe7;border-radius:999px;flex:none;padding:8px 12px;font-size:13px;font-weight:700}.rich-lesson-expression-toggle:hover{background:#edf8ff;border-color:#2384c5}.rich-lesson-table{border:1px solid #dce2e8;border-radius:8px;overflow-x:auto}.rich-lesson-table-head,.rich-lesson-table-row{min-width:var(--rich-table-min-width,0);grid-template-columns:var(--rich-table-columns,24% 38% 38%);display:grid}.rich-lesson-table-head{color:#273a55;background:#edf8ff}.rich-lesson-table-head b{border-right:1px solid #dce2e8;padding:12px;font-size:20px}.rich-lesson-table-row+.rich-lesson-table-row{border-top:1px solid #e2e6eb}.rich-lesson-table-row>div{color:#34445c;white-space:pre-line;border-right:1px solid #e2e6eb;min-width:0;padding:13px 12px;font-size:18px;font-weight:500;line-height:1.55}.rich-lesson-table-row>div:first-child{background:#f7fcfe}.rich-lesson-table-row>div:last-child{color:#156caa;border-right:0;font-weight:700}.rich-table-text-icon{vertical-align:middle;object-fit:contain;width:1.2em;height:1.2em;margin:0 .3em .08em 0;display:inline-block}.rich-table-text-underlined{text-underline-offset:.14em;text-decoration-style:solid;text-decoration-line:underline!important}.rich-lesson-audio{background:#fbfcfd;border:1px solid #dce5ed;border-radius:12px;align-items:center;gap:16px;padding:17px 19px;display:flex}.rich-lesson-audio>div{gap:3px;display:grid}.rich-lesson-audio b{color:#2b3d57;font-size:15px}.rich-lesson-audio span{color:#758196;font-size:13px}.rich-lesson-audio audio{min-width:260px;margin-left:auto}.rich-lesson-audio em{color:#8c9aac;margin-left:auto;font-size:12px}.rich-lesson-callout{background:#e2f6ff;border-color:#76d2ea;border-radius:9px}.rich-lesson-callout h2{margin-bottom:12px;font-size:17px}.rich-lesson-callout p{color:#2b4059;margin:0;font-size:15px;line-height:1.72}.rich-lesson-callout p+p{margin-top:7px}.rich-lesson-callout--rich{background:#fff9e5;border-color:#f1d97d}.rich-lesson-callout--rich h2{color:#222d3d;font-size:18px}.rich-lesson-callout--rich p{color:#242c39;white-space:pre-wrap;font-size:16px;line-height:1.75}.rich-lesson-callout--rich p+p,.rich-lesson-callout--rich blockquote+p,.rich-lesson-callout--rich p+blockquote{margin-top:14px}.rich-lesson-callout--rich blockquote{color:#7b8491;white-space:pre-wrap;background:0 0;border-left-color:#2f96ff;border-radius:0;margin:12px 0;padding:0 0 0 14px;font-size:16px;line-height:1.65}.rich-lesson-callout--rich blockquote>span{display:inline}.rich-lesson-image{margin:0}.rich-lesson-image img{-webkit-user-drag:none;pointer-events:none;-webkit-user-select:none;user-select:none;border-radius:12px;width:100%;display:block}.rich-lesson-image figcaption{color:#748198;text-align:center;margin-top:8px;font-size:13px}.rich-inline-image{border-radius:8px;max-width:100%;margin:12px 0;display:block}.rich-lesson-video,.rich-vocabulary-cards{background:#fff;border:1px solid #dbe4f0;border-radius:14px;padding:22px}.rich-lesson-video header{gap:4px;margin-bottom:14px;display:grid}.rich-lesson-video iframe{aspect-ratio:16/9;border:0;border-radius:10px;width:100%;display:block}.rich-lesson-video-poster{color:#fff;cursor:pointer;background:linear-gradient(135deg,#273a55,#4b6f98);border:0;border-radius:10px;place-content:center;gap:10px;width:100%;min-height:220px;font-size:16px;font-weight:700;display:grid}.rich-lesson-video-poster span{border:1px solid #fff;border-radius:50%;place-items:center;width:48px;height:48px;margin:0 auto;font-size:20px;display:grid}.rich-lesson-video-link{color:#176b9d;margin-top:12px;font-weight:700;display:inline-block}.rich-vocabulary-cards>h2{color:#263b67;margin:0 0 12px;font-size:18px}.rich-vocabulary-cards article{background:#e2f6ff;border:1px solid #76d2ea;border-radius:8px;grid-template-columns:28px 1fr;gap:10px;padding:16px;display:grid}.rich-vocabulary-cards article+article{margin-top:12px}.rich-vocabulary-cards article>b{font-size:18px}.rich-vocabulary-cards p{white-space:pre-wrap;margin:0;line-height:1.75}.rich-table-width-editor{flex-wrap:wrap;align-items:end;gap:8px;margin:14px 0;display:flex}.rich-table-width-editor label{gap:3px;font-size:12px;display:grid}.rich-table-width-editor input{width:68px}.rich-table-cell-with-background{min-width:0;padding-bottom:28px;position:relative}.rich-table-cell-with-background>label{color:#667085;align-items:center;gap:4px;font-size:11px;display:flex;position:absolute;bottom:4px;right:6px}.rich-table-cell-with-background input{background:0 0;border:0;width:22px;height:18px;padding:0}.vocabulary-card-editor{background:#fafcff;border:1px solid #dbe4f0;border-radius:10px;padding:14px}.vocabulary-card-editor>header{justify-content:space-between;margin-bottom:10px;display:flex}.rich-lesson-content--five-step{gap:18px}.rich-lesson-flow-step{gap:16px;display:grid}.rich-lesson-step-heading{justify-content:space-between;align-items:center;gap:16px;display:flex}.rich-lesson-step-heading>.library-step-label{margin:0}.rich-lesson-flow-step .rich-lesson-text,.rich-lesson-flow-step .rich-lesson-table-section,.rich-lesson-flow-step .rich-lesson-callout{padding:22px}.rich-lesson-flow-step .rich-lesson-table-section{background:0 0;border:0;border-radius:0;padding:0}.rich-lesson-flow-step:has(.rich-lesson-image) .rich-lesson-image{margin-inline:-12px}.rich-lesson-empty{color:#758196;margin:0;font-size:14px}.rich-block-editor{margin-top:32px}.rich-block-editor>footer{flex-wrap:wrap;gap:9px;margin-top:14px;display:flex}.rich-block-editor button{cursor:pointer}.rich-block-editor-card{background:#fff;border:1px solid #dce3ed;border-radius:12px;gap:12px;margin-top:14px;padding:18px;display:grid}.rich-block-editor-card header{justify-content:space-between;gap:12px;display:flex}.rich-block-editor-card header span{gap:6px;display:flex}.rich-block-editor-card label{color:#44516a;gap:6px;font-size:14px;display:grid}.rich-block-editor-card label small{color:#758196;font-size:12px;line-height:1.5}.rich-table-bulk-importer,.rich-callout-importer{gap:10px;display:grid}.rich-callout-import-preview{background:#fff9e5;border:1px solid #ebd58a;border-radius:10px;gap:10px;padding:13px;display:grid}.rich-callout-import-preview>header{justify-content:space-between;align-items:center;gap:12px;display:flex}.rich-callout-import-preview header>div,.rich-callout-import-preview header>span{align-items:center;gap:8px;display:flex}.rich-callout-import-preview header>div{color:#4a4128;font-size:13px}.rich-callout-import-preview header>div span{color:#82775a;font-size:12px}.rich-callout-import-preview button{color:#69572a;cursor:pointer;background:#fff;border:1px solid #ddc979;border-radius:6px;min-height:30px;padding:4px 9px;font-size:12px;font-weight:700}.rich-callout-import-preview button.primary-link{color:#fff;background:#bb8a18;border-color:#bb8a18}.rich-callout-import-preview>div{background:#fffdf5;border:1px solid #eddfad;border-radius:7px;max-height:240px;padding:10px 12px;overflow:auto}.rich-callout-import-preview p,.rich-callout-import-preview blockquote{color:#4e5661;white-space:pre-wrap;margin:0;font-size:13px;line-height:1.55}.rich-callout-import-preview p+p,.rich-callout-import-preview blockquote+p,.rich-callout-import-preview p+blockquote{margin-top:8px}.rich-callout-import-preview blockquote{border-left:2px solid #2f96ff;padding-left:9px}.rich-callout-rich-status{color:#69738a;flex-wrap:wrap;align-items:center;gap:8px;margin:0;font-size:12px;display:flex}.rich-callout-rich-status button{color:#296f9d;font:inherit;cursor:pointer;background:0 0;border:0;padding:0;font-weight:700}.rich-table-import-preview{background:#f1faff;border:1px solid #9bcce5;border-radius:10px;gap:10px;padding:13px;display:grid}.rich-table-import-preview>header{justify-content:space-between;align-items:center;gap:12px;display:flex}.rich-table-import-preview header>div,.rich-table-import-preview header>span{align-items:center;gap:8px;display:flex}.rich-table-import-preview header>div{color:#273a55;font-size:13px}.rich-table-import-preview header>div span{color:#687891;font-size:12px}.rich-table-import-preview button{color:#315c78;cursor:pointer;background:#fff;border:1px solid #b8d3e1;border-radius:6px;min-height:30px;padding:4px 9px;font-size:12px;font-weight:700}.rich-table-import-preview button.primary-link{color:#fff;background:#2384c5;border-color:#2384c5}.rich-table-import-preview-scroll{background:#fff;border:1px solid #cfe0ea;border-radius:7px;max-height:280px;overflow:auto}.rich-table-import-preview-grid{min-width:max-content;display:grid}.rich-table-import-preview-grid>b,.rich-table-import-preview-grid>span{white-space:pre-wrap;border-bottom:1px solid #dce7ed;border-right:1px solid #dce7ed;min-width:0;padding:8px 9px}.rich-table-import-preview-grid>b{color:#283b55;background:#e8f6fd;font-size:13px}.rich-table-import-preview-grid>span{color:#425269;font-size:12px;line-height:1.5}.rich-table-grid-editor{background:#f8fbff;border:1px solid #dce3ed;border-radius:10px;gap:10px;padding:14px;display:grid}.rich-table-format-toolbar{flex-wrap:wrap;align-items:center;gap:7px;display:flex}.rich-table-format-toolbar>span{color:#52607e;margin-right:2px;font-size:13px}.rich-table-toolbar-divider{background:#d4deea;width:1px;height:22px;margin:0 2px}.rich-table-format-toolbar button,.rich-table-grid-editor>button{color:#34445c;background:#fff;border:1px solid #c7d4e3;border-radius:6px;min-height:30px;padding:4px 8px;font-size:12px;font-weight:700}.rich-table-format-toolbar button:hover,.rich-table-grid-editor>button:hover{background:#edf8ff;border-color:#2384c5}.rich-table-color-button{width:28px;padding:4px!important}.rich-table-color-button:after{background:var(--rich-table-swatch);content:"";border-radius:50%;width:16px;height:16px;margin:0 auto;display:block}.rich-table-icon-button{place-items:center;width:30px;display:grid;padding:3px!important}.rich-table-icon-button img{object-fit:contain;width:20px;height:20px;display:block}.rich-table-grid-editor>.admin-note{margin:0}.rich-table-grid-scroll{background:#fff;border:1px solid #dce3ed;border-radius:8px;overflow-x:auto}.rich-table-grid{min-width:max-content;display:grid}.rich-table-grid>b,.rich-table-cell-editor{border-bottom:1px solid #dce3ed;border-right:1px solid #dce3ed;min-width:0;padding:10px}.rich-table-grid>b{color:#273a55;background:#edf8ff;font-size:13px}.rich-table-cell-editor{color:#34445c;white-space:pre-wrap;outline:0;min-height:44px;font-size:18px;line-height:1.55}.rich-table-cell-editor:focus{z-index:1;position:relative;box-shadow:inset 0 0 0 2px #59afe1}@media (max-width:760px){.rich-lesson-text,.rich-lesson-table-section,.rich-lesson-callout{padding:18px}.rich-lesson-table{border:0;border-radius:0}.rich-lesson-table-head{display:none}.rich-lesson-table-heading{flex-direction:column;align-items:flex-start;gap:10px}.rich-lesson-expression-toggle{align-self:flex-end}.rich-lesson-step-heading{align-items:flex-start}.rich-lesson-flow-step:has(.rich-lesson-image) .rich-lesson-image{margin-inline:-6px}.rich-lesson-table-row{border:1px solid #dce2e8;border-radius:10px;grid-template-columns:1fr;gap:10px;padding:14px;display:grid}.rich-lesson-table-row+.rich-lesson-table-row{margin-top:12px}.rich-lesson-table-row>div{border:0;padding:0;font-size:18px}.rich-lesson-table-row>div:before{content:attr(data-label);color:#7b8799;margin-bottom:3px;font-size:12px;font-weight:700;display:block}.rich-lesson-table-row>div:first-child{border-radius:6px;padding:8px 10px}.rich-lesson-audio{flex-direction:column;align-items:flex-start}.rich-lesson-audio audio{width:100%;min-width:0;margin-left:0}}.ted-material-intro{padding:3px 0 26px}.ted-material-intro h2,.ted-material-section h3{color:#f03131;letter-spacing:-.04em;margin:0;font-size:clamp(22px,3vw,34px);font-weight:800}.ted-material-intro h2{color:#1762cf}.ted-material-intro h2 span{color:#17191e}.ted-material-prompt{color:#24272d;background:#eaf3ff;border:1px solid #a5c5ff;border-radius:8px;margin-top:18px;padding:17px 19px;line-height:1.65}.ted-material-prompt-heading{color:#20232a;align-items:center;gap:10px;font-size:clamp(13px,1.4vw,16px);display:flex}.ted-material-prompt-heading svg{color:#718094;flex:none;width:1.55em;height:1.55em}.ted-material-prompt-note{color:#9a43f0;margin:12px 0 0 32px;font-size:clamp(11px,1.1vw,13px);line-height:1.55}.ted-material-prompt-body{margin-top:15px}.ted-material-prompt-body p{color:#20242b;margin:0;font-size:clamp(13px,1.45vw,16px);line-height:1.75}.ted-material-prompt-body p+p{margin-top:8px}.ted-material-prompt-body--indented p{text-indent:2em}.ted-possible-saying{color:#45526b;background:#fff;border:1px solid #d7dadd;align-items:flex-start;gap:13px;margin:0 0 24px;padding:11px 14px;display:flex}.ted-possible-saying b{color:#161a21;flex:none;font-size:clamp(12px,1.3vw,14px);line-height:1.4}.ted-possible-saying p{color:#4c5b76;margin:0;font-size:clamp(11px,1.15vw,13px);font-weight:700;line-height:1.48}.ted-material-section+.ted-material-section,.ted-material-media+.ted-material-section{margin-top:32px}.ted-material-section h3{margin-bottom:13px;font-size:19px}.ted-material-review-note{color:#7c8492;margin:-6px 0 13px;font-size:12px;line-height:1.5}.ted-material-table{border:1px solid #d8e0e6;border-radius:4px;overflow:hidden}.ted-material-row{border-top:1px solid #d8e0e6;grid-template-columns:62% 38%;display:grid}.ted-material-row:first-child{border-top:0}.ted-material-row>*{margin:0;padding:10px 12px}.ted-material-row strong{color:#1d2b39;background:#f5fcff;font-size:15px;line-height:1.42}.ted-material-row p{color:#394a5b;border-left:1px solid #d8e0e6;font-size:13px;line-height:1.55}.ted-material-row:nth-child(n+5) strong{color:#ea681c;background:#fff2e9}.ted-material-row:nth-child(n+5) p{color:#dc6331}.growth-material-intro{padding:3px 0 14px}.growth-material-prompt{color:#2e384d;white-space:pre-line;font-size:15px;line-height:1.75}.growth-material-prompt--large-copy{font-size:17px}.growth-material-intro>p{color:#6b7484;margin:16px 0 0;font-size:12px}.growth-material-table-wrap{overflow-x:auto}.growth-material-table{background:#fff;border:1px solid #cbd4d9;border-radius:3px;min-width:720px;overflow:hidden}.growth-material-head,.growth-material-row{grid-template-columns:25% 34% 41%;display:grid}.growth-material-head{color:#1d2b39;background:#e7f8ff;font-size:14px}.growth-material-head b{border-right:1px solid #cbd4d9;padding:10px}.growth-material-head b:last-child{border-right:0}.growth-material-row{border-top:1px solid #cbd4d9}.growth-material-row>*{color:#344257;border-right:1px solid #cbd4d9;min-width:0;margin:0;padding:11px 10px;font-size:14px;line-height:1.55}.growth-material-row>:last-child{border-right:0}.growth-material-row>p{background:#f7fcfe}.growth-material-row>strong{font-weight:500}.growth-material-row>div{flex-direction:column;gap:5px;display:flex}.growth-material-row>div b{color:#283c66;font-size:15px}.growth-material-row>div span{color:#67748a;white-space:pre-line}.growth-material-table--large-copy .growth-material-row>*{font-size:16px}.growth-material-table--large-copy .growth-material-row>div b{font-size:17px}.growth-material-media{margin-top:18px}.taylor-material-intro{gap:14px;padding-bottom:18px;display:grid}.taylor-material-prompt{color:#24354d;background:#eaf8ff;border:1px solid #a9d9ef;border-radius:5px;padding:18px 22px}.taylor-material-prompt--answer{background:#f6f7f8;border-color:#c5cad2}.taylor-material-prompt b,.taylor-material-prompt p,.taylor-material-source>*{margin:0}.taylor-material-prompt b{font-size:15px}.taylor-material-prompt p{color:#38465a;margin-top:8px;padding-left:29px;font-size:15px;line-height:1.75}.taylor-material-prompt--large-copy b,.taylor-material-prompt--large-copy p{font-size:17px}.taylor-material-source{color:#2f3c50;gap:5px;margin:0 0 14px;display:grid}.taylor-material-source b{font-size:15px}.taylor-material-source span,.taylor-material-source p{font-size:13px;line-height:1.6}.taylor-material-table{background:#fff;border:1px solid #c8c8c8;overflow:hidden}.taylor-material-head,.taylor-material-row{grid-template-columns:minmax(0,60%) minmax(0,40%);display:grid}.taylor-material-head{color:#e13838;border-bottom:1px solid #c8c8c8;grid-template-columns:auto 1fr;align-items:center;gap:9px;padding:9px 14px}.taylor-material-head b{font-size:15px}.taylor-material-head span{color:#8a8f99;font-size:12px}.taylor-material-row+.taylor-material-row{border-top:1px solid #d6d6d6}.taylor-material-row>*{color:#364359;min-width:0;margin:0;padding:9px 14px;font-size:14px;line-height:1.5}.taylor-material-row>p{border-left:1px solid #d6d6d6}.taylor-material-row>strong{font-weight:700}.taylor-material-table--large-copy .taylor-material-row>*{font-size:16px}.taylor-material-row:nth-child(odd)>*{color:#914b2c}.taylor-material-row:nth-child(4n+4)>*{color:#71429e}.taylor-material-row:nth-child(4n+5)>*{color:#1b5fbd}.taylor-material-row:nth-child(n+8)>*{color:#d36c18}.taylor-audio-file{color:#53647b;border:1px dashed #cbd4e7;border-radius:8px;align-items:center;gap:10px;padding:13px 15px;display:flex}.taylor-audio-file b{font-size:14px}.taylor-vocabulary-list{gap:12px;display:grid}.taylor-vocabulary-card{background:#e2f6ff;border:1px solid #76d2ea;border-radius:5px;align-items:flex-start;gap:11px;padding:15px 18px;display:flex}.taylor-vocabulary-card>span{font-size:18px;line-height:1.4}.taylor-vocabulary-card ul{gap:5px;margin:0;padding-left:18px;display:grid}.taylor-vocabulary-card li{color:#24354d;font-size:14px;line-height:1.55}.taylor-vocabulary-list--large-copy .taylor-vocabulary-card li{font-size:16px}.growth-vocabulary-list{gap:28px;display:grid}.growth-vocabulary-card{background:#e2f6ff;border:1px solid #76d2ea;border-radius:10px;padding:28px 34px}.growth-vocabulary-term,.growth-vocabulary-examples p{color:#1d2734;margin:0;font-size:16px;line-height:1.72}.growth-vocabulary-term{align-items:center;gap:17px;font-size:16px;font-weight:500;display:flex}.growth-vocabulary-term span{flex:none;font-size:24px;line-height:1}.growth-vocabulary-list--large-copy .growth-vocabulary-term,.growth-vocabulary-list--large-copy .growth-vocabulary-examples p{font-size:18px}.growth-vocabulary-examples{gap:20px;margin:24px 0 0 77px;padding:0;display:grid}.growth-vocabulary-examples li{padding-left:9px}.growth-vocabulary-examples li::marker{font-size:18px}.growth-vocabulary-examples li p+p{margin-top:14px;margin-left:46px}.growth-vocabulary-examples li p+p:before{content:"◦";width:46px;margin-left:-46px;display:inline-block}@media (max-width:620px){.growth-vocabulary-list{gap:16px}.growth-vocabulary-card{padding:20px 18px}.growth-vocabulary-term,.growth-vocabulary-examples p{font-size:15px}.growth-vocabulary-term{gap:10px}.growth-vocabulary-term span{font-size:20px}.growth-vocabulary-examples{gap:16px;margin:18px 0 0 34px}.growth-vocabulary-examples li p+p{margin-left:28px}.growth-vocabulary-examples li p+p:before{width:28px;margin-left:-28px}.taylor-material-prompt{padding:14px}.taylor-material-prompt p{padding-left:0}.taylor-material-head,.taylor-material-row{grid-template-columns:minmax(0,58%) minmax(0,42%)}.taylor-material-head{grid-template-columns:1fr;gap:2px}.taylor-material-row>*{padding:8px;font-size:13px}}.ted-material-media{background:#fbfcfd;border:1px solid #dee4e9;border-radius:5px;gap:6px;margin-top:25px;padding:19px;display:grid}.ted-material-media>*{margin:0}.ted-material-audio-heading{color:#263b54;font-size:16px;font-weight:800}.ted-material-video-label{color:#687489;font-size:12px}.ted-material-media b{color:#273247;font-size:14px}.ted-material-media>span{color:#7e8795;font-size:12px}.ted-material-media .library-media-slot{margin-top:8px}.ted-material-notes{margin-top:30px}.ted-material-review-table .ted-material-row strong{color:#0000}.ted-material-review-table .ted-material-row:nth-child(n+5) strong{background:#fff2e9}@media (max-width:620px){.ted-material-row{grid-template-columns:57% 43%}.ted-material-row>*{padding:9px 8px}.ted-material-row strong{font-size:13px}.ted-material-row p{font-size:12px}.ted-possible-saying{display:block}.ted-possible-saying p{margin-top:4px}}@media (max-width:760px){.conversation-page{padding-top:46px}.conversation-layout{grid-template-columns:1fr}.scenario-panel{grid-template-columns:1fr 1fr;gap:6px;display:grid}.scenario-panel>.eyebrow,.scenario-panel>h2{grid-column:1/-1}.scenario-panel>button{margin-top:0}.scenario-panel>button small{display:none}.conversation-stage{min-height:520px}.conversation-messages{min-height:370px;padding:17px}.conversation-message{max-width:92%}.conversation-stage>header{padding:15px}.source-pdf-toolbar{flex-direction:column;align-items:flex-start;gap:10px}.source-pdf-reader iframe{height:68vh}}.listening-reader-content{color:#1f2937;max-width:860px}.listening-reader-cloze{background:#f1fbf3;border:1px solid #9bbba8;padding:18px 20px}.listening-reader-cloze header,.listening-reader-audio{align-items:center;gap:12px;display:flex}.listening-reader-cloze header{justify-content:space-between;margin-bottom:12px}.listening-reader-cloze h2,.listening-reader-body p,.listening-reader-notes p{margin:0}.listening-reader-cloze h2{color:#234632;font-size:16px}.listening-reader-cloze button{color:#326348;background:#fff;border:1px solid #79a58a;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:700}.listening-reader-cloze>p{white-space:pre-wrap;color:#304236;font-family:Georgia,Times New Roman,serif;font-size:15px;line-height:1.58}.listening-reader-cloze-answer{background:#fffde8;border-top:1px dashed #aac7b2;padding-top:13px;margin-top:13px!important}.listening-reader-audio{border-bottom:1px solid #d9dee6;min-height:62px;margin:20px 0 26px;padding:0 0 16px}.listening-reader-audio-icon{color:#62748a;background:#e8edf2;border-radius:50%;place-items:center;width:34px;height:34px;display:grid}.listening-reader-audio>div:nth-child(2){gap:2px;display:grid}.listening-reader-audio b{font-size:14px}.listening-reader-audio span,.listening-reader-audio em{color:#7b8592;font-size:12px;font-style:normal}.listening-reader-audio audio{width:min(310px,100%);margin-left:auto}.listening-reader-passage{padding:0 0 22px}.listening-reader-english{white-space:pre-wrap;color:#131b2a;font-family:Georgia,Times New Roman,serif;font-size:16px;font-weight:700;line-height:1.68}.listening-reader-chinese{white-space:pre-wrap;color:#566170;font-size:14px;line-height:1.75;margin-top:7px!important}.listening-reader-notes{border:1px solid #dec8b9;margin-top:11px;padding:12px 14px}.listening-reader-notes--peach{background:#fff5e9}.listening-reader-notes--rose{background:#fff0f1}.listening-reader-notes p{white-space:pre-wrap;color:#80523f;font-size:13px;line-height:1.62}.listening-reader-notes--rose p{color:#824a58}.listening-reader-import-editor{background:#fbfffb;border:1px solid #d9e4da;border-radius:12px;margin-top:28px;padding:20px}.listening-reader-source-workspace{background:#fff;border:1px solid #d7e3d9;border-radius:12px;width:min(1440px,100vw - 40px);margin-top:24px;margin-left:50%;padding:clamp(16px,2.2vw,28px);transform:translate(-50%);box-shadow:0 12px 30px #30523c12}.listening-reader-source-editor{color:#365043;gap:9px;font-size:15px;font-weight:750;display:grid}.listening-reader-source-editor textarea{resize:vertical;color:#26352c;tab-size:2;background:#fcfffc;border:1px solid #bdcec1;border-radius:9px;width:100%;min-height:min(620px,68vh);padding:18px 20px;font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:14px;font-weight:400;line-height:1.72}.listening-reader-source-editor textarea:focus{border-color:#6f9a7d;outline:3px solid #6f9a7d29}.listening-reader-source-workspace .primary-link{min-width:176px}.listening-reader-audio-editor{background:#f4faf5;border:1px solid #d9e4da;border-radius:8px;gap:9px;margin:0 0 20px;padding:15px;display:grid}.listening-reader-audio-editor>div:first-child{gap:3px;display:grid}.listening-reader-audio-editor span{color:#68766d;font-size:13px}.listening-reader-audio-editor input{margin-top:5px}.listening-reader-audio-editor-actions{align-items:center;gap:12px;display:flex}.listening-reader-audio-editor-actions button{appearance:none;color:#fff;cursor:pointer;background:#3f7455;border:1px solid #355f47;border-radius:7px;padding:9px 14px;font-size:13px;font-weight:750;line-height:1;transition:background .16s,box-shadow .16s,transform .16s;box-shadow:0 2px 5px #2b523b2e}.listening-reader-audio-editor-actions button:hover:not(:disabled){background:#315f44;transform:translateY(-1px);box-shadow:0 4px 10px #2b523b3d}.listening-reader-audio-editor-actions button:focus-visible{outline-offset:2px;outline:3px solid #4d846047}.listening-reader-audio-editor-actions button:disabled{cursor:not-allowed;opacity:.56}.listening-reader-audio-editor-actions audio{max-width:300px;height:32px}.listening-reader-import-preview{color:#486151;border-top:1px solid #e5eee7;justify-content:space-between;align-items:center;gap:8px;margin:16px 0;padding-top:14px;font-size:13px;display:flex}.library-issue-editor-page{width:min(1240px,100% - 40px)!important}.library-issue-editor-layout{gap:22px;margin-top:28px;display:grid}.library-issue-editor-layout>.course-editor{max-width:none}.library-issue-editor-layout .expression-editor{gap:16px;margin-top:0}.library-issue-editor-layout .expression-editor>section,.library-issue-editor-layout .listening-reader-import-editor,.library-issue-editor-layout .rich-block-editor{box-sizing:border-box;background:#fff;border:1px solid #dfe4ee;border-radius:16px;box-shadow:0 10px 28px #2638730e}.library-issue-editor-layout .expression-editor>section{padding:26px 28px 24px}.library-issue-editor-layout .expression-editor h2{color:#263869;margin-bottom:22px;font-size:20px}.library-issue-editor-layout .form-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px 18px}.library-issue-editor-layout .expression-editor input,.library-issue-editor-layout .expression-editor select,.library-issue-editor-layout .expression-editor textarea{border-color:#d5dceb;border-radius:9px;min-height:42px;padding:10px 12px}.library-issue-editor-layout .expression-editor textarea{min-height:92px}.library-issue-editor-layout .expression-editor>button{justify-self:start;min-width:148px;margin-top:0;padding:11px 18px;box-shadow:0 5px 13px #2b409b2e}.library-issue-editor-layout .listening-reader-import-editor,.library-issue-editor-layout .rich-block-editor{margin-top:0;padding:26px 28px}.library-issue-editor-layout .listening-reader-import-editor{background:linear-gradient(145deg,#fbfffc,#fff);border-color:#d8e7dd}.library-issue-editor-layout .listening-reader-import-editor .section-heading,.library-issue-editor-layout .rich-block-editor>.section-heading{margin-bottom:20px}.library-issue-editor-layout .listening-reader-import-editor h2,.library-issue-editor-layout .rich-block-editor h2{color:#263869;margin:4px 0 7px;font-size:21px}.library-issue-editor-layout .listening-reader-source-workspace{width:100%;box-shadow:none;border-radius:12px;margin:20px 0 0;padding:18px;transform:none}.library-issue-editor-layout .listening-reader-source-editor textarea{min-height:420px}.library-issue-editor-layout .rich-block-editor{background:#fcfcff}.library-issue-editor-layout .rich-block-editor-card{box-shadow:none;border-radius:11px;margin-top:16px}.library-issue-editor-layout .rich-block-editor>footer{border-top:1px solid #e7eaf1;align-items:center;margin-top:18px;padding-top:18px}@media (max-width:900px){.library-issue-editor-page{width:min(100% - 28px,760px)!important}.library-issue-editor-layout .form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:620px){.library-issue-editor-layout{gap:16px;margin-top:20px}.library-issue-editor-layout .expression-editor>section,.library-issue-editor-layout .listening-reader-import-editor,.library-issue-editor-layout .rich-block-editor{border-radius:13px;padding:19px 16px}.library-issue-editor-layout .form-grid{grid-template-columns:1fr;gap:13px}.library-issue-editor-layout .listening-reader-source-workspace{padding:13px}.library-issue-editor-layout .listening-reader-source-editor textarea{min-height:320px;padding:13px}.listening-reader-content{width:100%;min-width:0}.listening-reader-cloze{padding:16px}.listening-reader-cloze header{align-items:flex-start;gap:10px}.listening-reader-cloze h2{padding-top:3px;font-size:15px;line-height:1.35}.listening-reader-cloze button{flex:none;min-height:32px;padding:7px 10px}.listening-reader-cloze>p,.listening-reader-english,.listening-reader-chinese,.listening-reader-notes p{overflow-wrap:anywhere;word-break:break-word}.listening-reader-cloze>p{font-size:14px;line-height:1.7}.listening-reader-audio{grid-template-columns:34px minmax(0,1fr);align-items:start;gap:12px 10px;margin:18px 0 22px;padding-bottom:18px;display:grid}.listening-reader-audio>div:nth-child(2){min-width:0}.listening-reader-audio span{line-height:1.45}.listening-reader-audio audio{grid-column:1/-1;width:100%;max-width:none;margin-left:0}.listening-reader-english{font-size:15px;line-height:1.7}.listening-reader-chinese{font-size:14px;line-height:1.82;margin-top:8px!important}.listening-reader-passage{padding-bottom:20px}.listening-reader-passage+.listening-reader-passage{border-top:1px solid #e7eaee;padding-top:20px}.listening-reader-notes{margin-top:10px;padding:12px}.listening-reader-notes p{font-size:12.5px;line-height:1.7}.listening-reader-import-preview{display:grid}.listening-reader-source-workspace{width:calc(100vw - 24px);padding:14px}.listening-reader-source-editor textarea{min-height:480px;padding:14px;font-size:13px}.listening-reader-audio-editor-actions{flex-direction:column;align-items:flex-start}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}