@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-border-style:solid;--tw-font-weight:initial;--tw-ordinal:initial;--tw-slashed-zero:initial;--tw-numeric-figure:initial;--tw-numeric-spacing:initial;--tw-numeric-fraction:initial;--tw-outline-style:solid;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial;--tw-duration:initial;--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-translate-x:0;--tw-translate-y:0;--tw-translate-z:0;--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:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--color-red-50:#fef2f2;--color-red-200:#ffcaca;--color-red-500:#fb2c36;--color-red-600:#e40014;--color-emerald-50:#ecfdf5;--color-emerald-200:#a4f4cf;--color-emerald-600:#009767;--color-blue-50:#eff6ff;--color-blue-200:#bedbff;--color-blue-300:#90c5ff;--color-blue-400:#54a2ff;--color-blue-500:#3080ff;--color-blue-600:#155dfc;--color-blue-700:#1447e6;--color-rose-500:#ff2357;--color-slate-100:#f1f5f9;--color-slate-200:#e2e8f0;--color-slate-300:#cad5e2;--color-slate-400:#90a1b9;--color-slate-500:#62748e;--color-slate-600:#45556c;--color-slate-800:#1d293d;--color-white:#fff;--spacing:.25rem;--container-6xl:72rem;--text-xs:.75rem;--text-xs--line-height:calc(1 / .75);--text-sm:.875rem;--text-sm--line-height:calc(1.25 / .875);--text-lg:1.125rem;--text-lg--line-height:calc(1.75 / 1.125);--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--radius-md:.375rem;--radius-lg:.5rem;--animate-spin:spin 1s linear infinite;--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)}@supports (color:lab(0% 0 0)){:root,:host{--color-red-50:lab(96.5005% 4.18511 1.52329);--color-red-200:lab(86.017% 19.8815 7.75869);--color-red-500:lab(55.4814% 75.0732 48.8528);--color-red-600:lab(48.4493% 77.4328 61.5452);--color-emerald-50:lab(97.8462% -6.94963 1.85487);--color-emerald-200:lab(90.2247% -31.039 9.47084);--color-emerald-600:lab(55.0481% -49.9246 15.93);--color-blue-50:lab(96.492% -1.14647 -5.11479);--color-blue-200:lab(86.15% -4.04379 -21.0797);--color-blue-300:lab(77.5052% -6.4629 -36.42);--color-blue-400:lab(65.0361% -1.42062 -56.9803);--color-blue-500:lab(54.1736% 13.3368 -74.6839);--color-blue-600:lab(44.0605% 29.0279 -86.0352);--color-blue-700:lab(36.9089% 35.0961 -85.6872);--color-rose-500:lab(56.101% 79.4329 31.4532);--color-slate-100:lab(96.286% -.852466 -2.46847);--color-slate-200:lab(91.7353% -.998765 -4.76968);--color-slate-300:lab(84.7652% -1.94535 -7.93337);--color-slate-400:lab(65.5349% -2.25151 -14.5072);--color-slate-500:lab(48.0876% -2.03595 -16.5814);--color-slate-600:lab(35.5623% -1.74978 -15.4316);--color-slate-800:lab(16.132% -.318021 -14.6672)}}}@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,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){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{.start{inset-inline-start:var(--spacing)}.end{inset-inline-end:var(--spacing)}.mx-auto{margin-inline:auto}.mt-4{margin-top:calc(var(--spacing) * 4)}.ml-auto{margin-left:auto}.block{display:block}.flex{display:flex}.inline-flex{display:inline-flex}.size-3{width:calc(var(--spacing) * 3);height:calc(var(--spacing) * 3)}.size-3\.5{width:calc(var(--spacing) * 3.5);height:calc(var(--spacing) * 3.5)}.size-4{width:calc(var(--spacing) * 4);height:calc(var(--spacing) * 4)}.size-5{width:calc(var(--spacing) * 5);height:calc(var(--spacing) * 5)}.size-6{width:calc(var(--spacing) * 6);height:calc(var(--spacing) * 6)}.size-7{width:calc(var(--spacing) * 7);height:calc(var(--spacing) * 7)}.size-8{width:calc(var(--spacing) * 8);height:calc(var(--spacing) * 8)}.size-9{width:calc(var(--spacing) * 9);height:calc(var(--spacing) * 9)}.size-10{width:calc(var(--spacing) * 10);height:calc(var(--spacing) * 10)}.size-12{width:calc(var(--spacing) * 12);height:calc(var(--spacing) * 12)}.size-\[16px\]{width:16px;height:16px}.size-\[18px\]{width:18px;height:18px}.h-2{height:calc(var(--spacing) * 2)}.h-6{height:calc(var(--spacing) * 6)}.h-7{height:calc(var(--spacing) * 7)}.h-8{height:calc(var(--spacing) * 8)}.h-9{height:calc(var(--spacing) * 9)}.h-full{height:100%}.min-h-dvh{min-height:100dvh}.min-h-full{min-height:100%}.w-\[72px\]{width:72px}.w-full{width:100%}.max-w-6xl{max-width:var(--container-6xl)}.shrink-0{flex-shrink:0}.grow{flex-grow:1}.rotate-180{rotate:180deg}.animate-spin{animation:var(--animate-spin)}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-1{gap:calc(var(--spacing) * 1)}.gap-1\.5{gap:calc(var(--spacing) * 1.5)}.gap-2{gap:calc(var(--spacing) * 2)}.gap-3{gap:calc(var(--spacing) * 3)}.gap-4{gap:calc(var(--spacing) * 4)}.overflow-hidden{overflow:hidden}.rounded-\[min\(var\(--radius-md\)\,10px\)\]{border-radius:min(var(--radius-md), 10px)}.rounded-\[min\(var\(--radius-md\)\,12px\)\]{border-radius:min(var(--radius-md), 12px)}.rounded-full{border-radius:3.40282e38px}.rounded-lg{border-radius:var(--radius-lg)}.border{border-style:var(--tw-border-style);border-width:1px}.border-blue-200{border-color:var(--color-blue-200)}.border-emerald-200{border-color:var(--color-emerald-200)}.border-red-200{border-color:var(--color-red-200)}.border-transparent{border-color:#0000}.bg-blue-50{background-color:var(--color-blue-50)}.bg-blue-500{background-color:var(--color-blue-500)}.bg-emerald-50{background-color:var(--color-emerald-50)}.bg-red-50{background-color:var(--color-red-50)}.bg-red-500{background-color:var(--color-red-500)}.bg-slate-100{background-color:var(--color-slate-100)}.bg-clip-padding{background-clip:padding-box}.p-6{padding:calc(var(--spacing) * 6)}.px-2{padding-inline:calc(var(--spacing) * 2)}.px-2\.5{padding-inline:calc(var(--spacing) * 2.5)}.py-2{padding-block:calc(var(--spacing) * 2)}.py-4{padding-block:calc(var(--spacing) * 4)}.py-8{padding-block:calc(var(--spacing) * 8)}.py-24{padding-block:calc(var(--spacing) * 24)}.pt-0{padding-top:calc(var(--spacing) * 0)}.text-center{text-align:center}.text-lg{font-size:var(--text-lg);line-height:var(--tw-leading,var(--text-lg--line-height))}.text-sm{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}.text-xs{font-size:var(--text-xs);line-height:var(--tw-leading,var(--text-xs--line-height))}.text-\[0\.8rem\]{font-size:.8rem}.text-\[11px\]{font-size:11px}.text-\[13px\]{font-size:13px}.font-bold{--tw-font-weight:var(--font-weight-bold);font-weight:var(--font-weight-bold)}.font-medium{--tw-font-weight:var(--font-weight-medium);font-weight:var(--font-weight-medium)}.font-semibold{--tw-font-weight:var(--font-weight-semibold);font-weight:var(--font-weight-semibold)}.whitespace-nowrap{white-space:nowrap}.text-blue-300{color:var(--color-blue-300)}.text-blue-400{color:var(--color-blue-400)}.text-blue-600{color:var(--color-blue-600)}.text-blue-700{color:var(--color-blue-700)}.text-emerald-600{color:var(--color-emerald-600)}.text-red-500{color:var(--color-red-500)}.text-red-600{color:var(--color-red-600)}.text-rose-500{color:var(--color-rose-500)}.text-slate-200{color:var(--color-slate-200)}.text-slate-300{color:var(--color-slate-300)}.text-slate-400{color:var(--color-slate-400)}.text-slate-500{color:var(--color-slate-500)}.text-slate-600{color:var(--color-slate-600)}.text-slate-800{color:var(--color-slate-800)}.text-white{color:var(--color-white)}.tabular-nums{--tw-numeric-spacing:tabular-nums;font-variant-numeric:var(--tw-ordinal,) var(--tw-slashed-zero,) var(--tw-numeric-figure,) var(--tw-numeric-spacing,) var(--tw-numeric-fraction,)}.underline{text-decoration-line:underline}.underline-offset-4{text-underline-offset:4px}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.filter{filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.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))}.transition-transform{transition-property:transform,translate,scale,rotate;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.duration-500{--tw-duration:.5s;transition-duration:.5s}.outline-none{--tw-outline-style:none;outline-style:none}.select-none{-webkit-user-select:none;user-select:none}.running{animation-play-state:running}@media (hover:hover){.hover\:underline:hover{text-decoration-line:underline}}.focus-visible\:ring-3:focus-visible{--tw-ring-shadow:var(--tw-ring-inset,) 0 0 0 calc(3px + 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)}.active\:not-aria-\[haspopup\]\:translate-y-px:active:not([aria-haspopup]){--tw-translate-y:1px;translate:var(--tw-translate-x) var(--tw-translate-y)}.disabled\:pointer-events-none:disabled{pointer-events:none}.disabled\:opacity-50:disabled{opacity:.5}:where([data-slot=button-group]) .in-data-\[slot\=button-group\]\:rounded-lg{border-radius:var(--radius-lg)}.has-data-\[icon\=inline-end\]\:pr-1\.5:has([data-icon=inline-end]){padding-right:calc(var(--spacing) * 1.5)}.has-data-\[icon\=inline-end\]\:pr-2:has([data-icon=inline-end]){padding-right:calc(var(--spacing) * 2)}.has-data-\[icon\=inline-start\]\:pl-1\.5:has([data-icon=inline-start]){padding-left:calc(var(--spacing) * 1.5)}.has-data-\[icon\=inline-start\]\:pl-2:has([data-icon=inline-start]){padding-left:calc(var(--spacing) * 2)}.aria-invalid\:ring-3[aria-invalid=true]{--tw-ring-shadow:var(--tw-ring-inset,) 0 0 0 calc(3px + 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)}.\[\&_svg\]\:pointer-events-none svg{pointer-events:none}.\[\&_svg\]\:shrink-0 svg{flex-shrink:0}.\[\&_svg\:not\(\[class\*\=\'size-\'\]\)\]\:size-3 svg:not([class*=size-]){width:calc(var(--spacing) * 3);height:calc(var(--spacing) * 3)}.\[\&_svg\:not\(\[class\*\=\'size-\'\]\)\]\:size-3\.5 svg:not([class*=size-]){width:calc(var(--spacing) * 3.5);height:calc(var(--spacing) * 3.5)}.\[\&_svg\:not\(\[class\*\=\'size-\'\]\)\]\:size-4 svg:not([class*=size-]){width:calc(var(--spacing) * 4);height:calc(var(--spacing) * 4)}}@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{--bg:#f4f8ff;--fg:#14223a;--muted:#6e7f9a;--line:#d8e4fa;--brand-1:#0f4eb7;--brand-2:#1b7de0;--brand-3:#56b6f6;--success:#067647;--danger:#b42318;--radius-lg:18px;--radius-md:14px;--radius-sm:10px}.grammar-featured-topics{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;width:min(940px,100% - 32px);margin:8px auto 24px;display:grid}.grammar-featured-topics>button{appearance:none;color:#172033;text-align:left;cursor:pointer;background:#fff;border:1px solid #d9e3ee;border-radius:8px;grid-template-columns:48px minmax(0,1fr) 22px;align-items:center;gap:14px;min-width:0;min-height:126px;padding:18px;display:grid;box-shadow:0 8px 22px #16304b12}.grammar-featured-topics>button:hover{border-color:#5b88b4;transform:translateY(-1px)}.grammar-featured-topics>button>span:nth-child(2){min-width:0}.grammar-featured-topics strong,.grammar-featured-topics em,.grammar-featured-topics small{letter-spacing:0;display:block}.grammar-featured-topics strong{font-size:19px}.grammar-featured-topics em{color:#216a5a;margin-top:4px;font-size:14px;font-style:normal;font-weight:800}.grammar-featured-topics small{color:#64748b;margin-top:8px;font-size:12px;line-height:1.45}.grammar-featured-topics>button>svg{color:#94a3b8;width:20px}.grammar-featured-icon{color:#176857;background:#e5f4ef;border-radius:8px;justify-content:center;align-items:center;width:48px;height:48px;display:inline-flex}.grammar-featured-icon.comparison{color:#9a5a11;background:#fff1d8}.grammar-featured-icon svg{width:24px}.grammar-more-title{color:#475569;letter-spacing:0;width:min(940px,100% - 32px);margin:6px auto 12px;font-size:14px}.wordlab-shell{color:#172033;background:#f4f7fa;min-height:100vh;padding-bottom:50px}.wordlab-header{background:#fff;border-bottom:1px solid #dfe7ef;grid-template-columns:44px minmax(0,1fr) auto;align-items:center;gap:14px;min-height:82px;padding:13px max(18px,50vw - 520px);display:grid}.wordlab-header>button,.wordlab-pagination button,.wordlab-audio{appearance:none;cursor:pointer;border:0;justify-content:center;align-items:center;display:inline-flex}.wordlab-header>button{color:#27445f;background:#eef3f7;border-radius:8px;width:42px;height:42px}.wordlab-header>button svg{width:20px}.wordlab-header h1{letter-spacing:0;margin:0;font-size:22px}.wordlab-header p{color:#64748b;margin:3px 0 0;font-size:13px}.wordlab-header-stat{text-align:center;border-left:1px solid #e2e8f0;min-width:72px;padding-left:16px}.wordlab-header-stat span,.wordlab-header-stat strong{display:block}.wordlab-header-stat span{color:#64748b;font-size:11px}.wordlab-header-stat strong{color:#b45309;margin-top:2px;font-size:21px}.wordlab-tabs{background:#e6ebf0;border-radius:8px;grid-template-columns:repeat(3,1fr);width:min(1040px,100% - 32px);height:54px;margin:18px auto 0;padding:4px;display:grid}.wordlab-tabs button{appearance:none;color:#526174;cursor:pointer;background:0 0;border:0;border-radius:6px;justify-content:center;align-items:center;gap:8px;min-width:0;font-size:14px;font-weight:800;display:inline-flex}.wordlab-tabs button.active{color:#17437c;background:#fff;box-shadow:0 2px 8px #17437c1a}.wordlab-tabs svg{width:17px}.wordlab-tabs button>span{color:#9a5a11;background:#fff3d6;border-radius:10px;justify-content:center;align-items:center;min-width:20px;height:20px;padding:0 5px;font-size:11px;display:inline-flex}.wordlab-toolbar{justify-content:space-between;align-items:center;gap:12px;width:min(1040px,100% - 32px);margin:16px auto 0;display:flex}.wordlab-toolbar>label{background:#fff;border:1px solid #d5dee8;border-radius:8px;align-items:center;gap:8px;width:min(310px,100%);height:42px;padding:0 12px;display:flex}.wordlab-toolbar>label:focus-within{border-color:#4d7da9;box-shadow:0 0 0 3px #4d7da91c}.wordlab-toolbar>label svg{color:#94a3b8;width:17px}.wordlab-toolbar input{color:#172033;min-width:0;font:inherit;background:0 0;border:0;outline:0;flex:1;font-size:14px}.wordlab-filter{flex-wrap:wrap;justify-content:flex-end;gap:7px;display:flex}.wordlab-filter button{appearance:none;color:#526174;cursor:pointer;background:#fff;border:1px solid #d5dee8;border-radius:7px;min-height:36px;padding:0 12px;font-size:12px;font-weight:800}.wordlab-filter button.active{color:#155b4d;background:#e7f4f0;border-color:#1f6c5d}.wordlab-count{color:#64748b;width:min(1040px,100% - 32px);margin:13px auto 9px;font-size:12px}.wordlab-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;width:min(1040px,100% - 32px);margin:0 auto;display:grid}.wordlab-card{background:#fff;border:1px solid #dce4ec;border-radius:8px;min-width:0;padding:17px;box-shadow:0 5px 16px #1b37500d}.wordlab-card-head{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.wordlab-card-head h2{letter-spacing:0;overflow-wrap:anywhere;margin:0;font-size:25px;line-height:1.15}.wordlab-card-head p{color:#64748b;margin:4px 0 0;font-size:13px}.wordlab-card-head>span{color:#8a5516;text-align:center;background:#fff1d8;border-radius:5px;max-width:145px;padding:5px 8px;font-size:10px;font-weight:850}.wordlab-card-head>span.irregular{color:#275f96;background:#e6f2ff}.wordlab-card-head>span.regular{color:#176857;background:#e7f4f0}.wordlab-forms{background:#e1e7ed;border:1px solid #e1e7ed;border-radius:7px;gap:1px;margin-top:15px;display:grid;overflow:hidden}.wordlab-forms-three{grid-template-columns:repeat(3,minmax(0,1fr))}.wordlab-forms>div{background:#f8fafc;flex-direction:column;justify-content:center;min-width:0;min-height:76px;padding:10px 38px 10px 11px;display:flex;position:relative}.wordlab-forms span{color:#6b7888;font-size:10px;font-weight:800}.wordlab-forms strong{overflow-wrap:anywhere;letter-spacing:0;margin-top:5px;font-size:15px;line-height:1.3}.wordlab-audio{color:#275f91;background:#e8f0f7;border-radius:7px;flex:0 0 32px;width:32px;height:32px}.wordlab-audio:hover,.wordlab-audio.is-playing{color:#fff;background:#17437c}.wordlab-audio svg{width:16px}.wordlab-forms .wordlab-audio{position:absolute;top:50%;right:6px;transform:translateY(-50%)}.wordlab-example{background:#fff9ed;border-left:3px solid #d7a13c;min-height:58px;margin-top:12px;padding:9px 44px 9px 12px;position:relative}.wordlab-example span{color:#8a5b17;font-size:10px;font-weight:900}.wordlab-example p{margin:4px 0 0;font-size:14px;line-height:1.45}.wordlab-example .wordlab-audio{color:#8a5b17;background:#fff;position:absolute;top:50%;right:7px;transform:translateY(-50%)}.wordlab-note{color:#526174;margin:10px 0 0;font-size:11px;line-height:1.5}.wordlab-grid-tense{grid-template-columns:1fr}.wordlab-tense-list{background:#dde5ed;border:1px solid #dde5ed;border-radius:7px;gap:1px;margin-top:13px;display:grid;overflow:hidden}.wordlab-tense-row{background:#fff;grid-template-columns:132px minmax(0,1fr) 36px;align-items:center;gap:14px;min-width:0;min-height:88px;padding:11px 12px;display:grid}.wordlab-tense-row.is-limited{background:#f7f8fa}.wordlab-tense-label strong,.wordlab-tense-label span{display:block}.wordlab-tense-label strong{font-size:13px}.wordlab-tense-label span{color:#557086;margin-top:4px;font-size:10px;font-weight:800}.wordlab-tense-copy{min-width:0}.wordlab-tense-copy small{color:#7b8795;font-size:10px;font-weight:750;display:block}.wordlab-tense-copy p{overflow-wrap:anywhere;margin:5px 0 0;font-size:15px;line-height:1.45}.wordlab-tense-copy p strong{color:#176857;font-weight:900}.wordlab-tense-copy em{color:#64748b;margin-top:3px;font-size:11px;font-style:normal;line-height:1.4;display:block}.wordlab-tense-row.is-limited .wordlab-tense-copy p{color:#6b7280;font-size:12px}.wordlab-tense-row>.wordlab-audio{width:34px;height:34px}.wordlab-pagination{justify-content:center;align-items:center;gap:16px;margin:20px auto 0;display:flex}.wordlab-pagination button{color:#334155;background:#fff;border-radius:7px;width:38px;height:38px;box-shadow:0 2px 8px #16304b14}.wordlab-pagination button:disabled{opacity:.35;cursor:not-allowed}.wordlab-pagination button svg{width:18px}.wordlab-pagination span{text-align:center;color:#526174;min-width:54px;font-size:13px;font-weight:800}.wordlab-practice,.wordlab-result,.wordlab-empty{background:#fff;border:1px solid #dce4ec;border-radius:8px;width:min(720px,100% - 32px);margin:18px auto 0;box-shadow:0 8px 26px #1b375012}.wordlab-practice{padding:22px}.wordlab-practice-top{color:#526174;justify-content:space-between;align-items:center;font-size:12px;display:flex}.wordlab-practice-top span{color:#176857;background:#e7f4f0;border-radius:4px;padding:4px 8px;font-weight:900}.wordlab-progress{background:#e7ecf1;border-radius:3px;height:5px;margin:11px 0 24px;overflow:hidden}.wordlab-progress i{border-radius:inherit;background:#2b7969;height:100%;transition:width .25s;display:block}.wordlab-question{background:#f8fafc;border:1px solid #e1e7ed;min-height:126px;padding:18px}.wordlab-question>p{color:#64748b;margin:0;font-size:12px;font-weight:800}.wordlab-question>div{grid-template-columns:minmax(0,1fr) 42px;align-items:center;gap:12px;margin-top:15px;display:grid}.wordlab-question h2{letter-spacing:0;overflow-wrap:anywhere;margin:0;font-size:clamp(20px,3.2vw,29px);line-height:1.45}.wordlab-question h2:first-letter{text-transform:uppercase}.wordlab-question .wordlab-audio{width:42px;height:42px}.wordlab-options{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin-top:14px;display:grid}.wordlab-options button{appearance:none;color:#172033;overflow-wrap:anywhere;cursor:pointer;background:#fff;border:1px solid #ccd7e2;border-radius:7px;min-width:0;min-height:56px;padding:8px 14px;font-size:17px;font-weight:800}.wordlab-options button:hover:not(:disabled),.wordlab-options button.selected{color:#174d7f;background:#eef6fd;border-color:#3975ad}.wordlab-options button.correct{color:#17634f;background:#e8f6f1;border-color:#3a8c73}.wordlab-options button.wrong{color:#a33a3a;background:#fff0f0;border-color:#d26a6a}.wordlab-feedback{border-radius:7px;margin-top:13px;padding:14px}.wordlab-feedback.correct{color:#155c4b;background:#eaf7f2}.wordlab-feedback.wrong{color:#963b3b;background:#fff1f1}.wordlab-feedback>div:first-child{align-items:center;gap:8px;display:flex}.wordlab-feedback svg{width:18px}.wordlab-feedback p{color:#172033;margin:8px 0 0;font-size:16px;font-weight:750}.wordlab-feedback .wordlab-feedback-translation{color:#64748b;margin-top:3px;font-size:12px;font-weight:500}.wordlab-feedback small{color:#64748b;margin-top:5px;display:block}.wordlab-feedback-forms{background:#64748b29;border-radius:6px;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;margin-top:11px;display:grid;overflow:hidden}.wordlab-feedback-forms span{color:#64748b;background:#ffffffb8;flex-direction:column;min-width:0;padding:8px;font-size:10px;display:flex}.wordlab-feedback-forms b{color:#172033;overflow-wrap:anywhere;margin-top:3px;font-size:12px}.wordlab-primary,.wordlab-result button,.wordlab-empty button{appearance:none;color:#fff;cursor:pointer;background:#17437c;border:0;border-radius:7px;justify-content:center;align-items:center;gap:8px;width:100%;min-height:48px;margin-top:16px;font-size:14px;font-weight:850;display:flex}.wordlab-primary:disabled{opacity:.38;cursor:not-allowed}.wordlab-primary svg,.wordlab-result button svg{width:17px}.wordlab-result,.wordlab-empty{text-align:center;padding:38px 24px}.wordlab-result-icon,.wordlab-empty>svg{color:#b7791f;justify-content:center;align-items:center;width:58px;height:58px;margin:0 auto;display:flex}.wordlab-result-icon{background:#fff4d9;border-radius:50%}.wordlab-result-icon svg{width:28px}.wordlab-result h2,.wordlab-empty h2{letter-spacing:0;margin:14px 0 0;font-size:23px}.wordlab-result>div:nth-of-type(2){grid-template-columns:1fr 1fr;gap:10px;width:min(360px,100%);margin:20px auto 0;display:grid}.wordlab-result>div:nth-of-type(2) span{color:#64748b;background:#f4f7fa;padding:14px;font-size:12px}.wordlab-result>div:nth-of-type(2) strong{color:#172033;font-size:26px;display:block}.wordlab-result button,.wordlab-empty button{width:min(360px,100%);margin-left:auto;margin-right:auto}.wordlab-result button.secondary{color:#334155;background:#e9eef3;margin-top:8px}.wordlab-empty p{color:#64748b;margin:8px auto 0;font-size:13px;line-height:1.5}@media (max-width:760px){.grammar-featured-topics,.wordlab-grid{grid-template-columns:1fr}.grammar-featured-topics>button{min-height:112px}.wordlab-toolbar{flex-direction:column;align-items:stretch}.wordlab-toolbar>label{width:100%}.wordlab-filter{flex-wrap:nowrap;justify-content:flex-start;padding-bottom:3px;overflow-x:auto}.wordlab-filter button{flex:none}}@media (max-width:520px){.wordlab-header{grid-template-columns:40px minmax(0,1fr) 56px;gap:9px;min-height:74px;padding:10px 12px}.wordlab-header>button{width:38px;height:38px}.wordlab-header h1{font-size:18px}.wordlab-header p{font-size:10px}.wordlab-header-stat{min-width:0;padding-left:8px}.wordlab-tabs{width:calc(100% - 20px);margin-top:10px}.wordlab-tabs button{gap:4px;font-size:12px}.wordlab-tabs svg{display:none}.wordlab-toolbar,.wordlab-count,.wordlab-grid,.wordlab-practice,.wordlab-result,.wordlab-empty{width:calc(100% - 20px)}.wordlab-card{padding:13px}.wordlab-card-head h2{font-size:22px}.wordlab-forms>div{min-height:82px;padding:9px 9px 34px}.wordlab-forms .wordlab-audio{width:28px;height:28px;top:auto;bottom:5px;right:7px;transform:none}.wordlab-forms strong{font-size:13px}.wordlab-practice,.wordlab-question{padding:14px}.wordlab-options,.wordlab-feedback-forms{grid-template-columns:1fr 1fr}.wordlab-tense-row{grid-template-columns:88px minmax(0,1fr) 32px;gap:8px;min-height:116px;padding:10px}.wordlab-tense-label strong{font-size:12px}.wordlab-tense-copy p{font-size:13px}.wordlab-tense-row>.wordlab-audio{width:30px;height:30px}.grammar-featured-topics{width:calc(100% - 20px)}.grammar-featured-topics>button{grid-template-columns:42px minmax(0,1fr) 18px;gap:10px;padding:14px}.grammar-featured-icon{width:42px;height:42px}}.grammar-shell{color:#172033;background:#f6f8fb;min-height:100vh;padding-bottom:40px}.grammar-topbar,.grammar-practice-head{background:#fff;border-bottom:1px solid #e7ebf0;align-items:center;gap:16px;height:76px;padding:0 max(20px,50vw - 410px);display:flex}.grammar-topbar button,.grammar-practice-head>button{background:#fff;border:1px solid #dde3ea;border-radius:8px;place-items:center;width:40px;height:40px;display:grid}.grammar-topbar svg,.grammar-practice-head svg{width:20px}.grammar-topbar h1{font-size:20px;font-weight:750;line-height:1.3}.grammar-topbar p{color:#748094;margin-top:2px;font-size:13px}.grammar-topic-list{background:#fff;border:1px solid #e1e6ec;max-width:820px;margin:24px auto}.grammar-topic-row{text-align:left;background:#fff;border-bottom:1px solid #edf0f4;grid-template-columns:52px minmax(0,1fr) auto;align-items:center;gap:18px;width:100%;min-height:100px;padding:18px 20px;transition:background .15s;display:grid}.grammar-topic-row:last-child{border-bottom:0}.grammar-topic-row:hover{background:#f8fafc}.grammar-topic-index{color:#a3adba;font-size:13px;font-weight:700}.grammar-topic-copy{gap:3px;min-width:0;display:grid}.grammar-topic-copy strong{font-size:17px}.grammar-topic-copy em{color:#2563eb;font-size:13px;font-style:normal}.grammar-topic-copy small{color:#748094;overflow-wrap:anywhere;font-size:13px}.grammar-topic-action{color:#64748b;gap:10px;display:flex}.grammar-topic-action svg{width:18px}.grammar-state{color:#64748b;justify-content:center;align-items:center;gap:10px;min-height:55vh;display:flex}.grammar-state svg{width:22px}.grammar-state button{color:#2563eb;margin-left:12px}.grammar-error{color:#b42318}.grammar-practice-shell{background:#fff}.grammar-practice-head{padding-inline:max(18px,50vw - 380px)}.grammar-practice-head>div:nth-child(2){flex:1;justify-content:space-between;min-width:0;display:flex}.grammar-practice-head strong{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.grammar-practice-head span{color:#64748b;font-size:13px}.grammar-score{gap:12px;flex:none!important;display:flex!important}.grammar-score span{align-items:center;gap:3px;display:flex}.grammar-score svg{width:15px}.grammar-score span:first-child{color:#16825d}.grammar-score span:last-child{color:#c2413b}.grammar-progress{background:#e9edf2;height:4px}.grammar-progress i{background:#2563eb;height:100%;transition:width .25s;display:block}.grammar-question-card,.grammar-answer-area{max-width:720px;margin-inline:auto}.grammar-question-card{padding:48px 20px 32px}.grammar-level{color:#2358ae;background:#e8f0ff;border-radius:4px;padding:4px 8px;font-size:12px;font-weight:750;display:inline-flex}.grammar-instruction{color:#6b778b;margin-top:14px;font-size:14px}.grammar-question-card h1{letter-spacing:0;margin-top:14px;font-size:clamp(23px,4vw,32px);font-weight:700;line-height:1.45}.grammar-answer-area{padding:0 20px 40px}.grammar-options{grid-template-columns:1fr 1fr;gap:12px;display:grid}.grammar-options button{text-align:left;background:#fff;border:1px solid #dce2e9;border-radius:8px;align-items:center;gap:14px;min-height:62px;padding:12px 16px;font-size:16px;display:flex}.grammar-options button>span{color:#536075;background:#f0f3f7;border-radius:6px;flex:none;place-items:center;width:30px;height:30px;font-size:13px;font-weight:700;display:grid}.grammar-options button.selected{border-color:#2563eb;box-shadow:0 0 0 2px #dbe8ff}.grammar-options button.correct{background:#effbf6;border-color:#149467}.grammar-options button.wrong{background:#fff3f2;border-color:#d24b43}.grammar-text-answer{color:#64748b;gap:8px;font-size:13px;display:grid}.grammar-text-answer input{color:#172033;border:1px solid #cfd7e1;border-radius:8px;outline:none;height:58px;padding:0 16px;font-size:19px}.grammar-text-answer input:focus{border-color:#2563eb;box-shadow:0 0 0 3px #e1ebff}.grammar-submit{color:#fff;background:#1859c9;border-radius:8px;justify-content:center;align-items:center;gap:8px;width:100%;height:52px;margin-top:22px;font-weight:700;display:flex}.grammar-submit:disabled{background:#aeb8c7}.grammar-submit svg{width:18px}.grammar-feedback{background:#f8fafb;border-left:4px solid;margin-top:18px;padding:18px}.grammar-feedback>div{align-items:center;gap:9px;display:flex}.grammar-feedback>div span{color:#fff;border-radius:50%;place-items:center;width:26px;height:26px;display:grid}.grammar-feedback svg{width:16px}.grammar-feedback p{color:#4b586b;margin-top:9px;line-height:1.55}.grammar-feedback small{color:#68758a;margin-top:8px;display:block}.grammar-feedback.is-correct{border-color:#149467}.grammar-feedback.is-correct>div span{background:#149467}.grammar-feedback.is-wrong{border-color:#d24b43}.grammar-feedback.is-wrong>div span{background:#d24b43}.grammar-inline-error{color:#b42318;margin-top:12px}.grammar-result{text-align:center;max-width:520px;margin:0 auto;padding:14vh 24px 40px}.grammar-result-mark{color:#12815b;background:#e9f8f2;border-radius:50%;place-items:center;width:68px;height:68px;margin:0 auto 20px;display:grid}.grammar-result-mark svg{width:32px}.grammar-result h1{font-size:28px;font-weight:750}.grammar-result>p{color:#64748b}.grammar-result-stats{border:1px solid #e1e6ec;grid-template-columns:1fr 1fr;margin:28px 0;display:grid}.grammar-result-stats span{color:#64748b;padding:20px}.grammar-result-stats span+span{border-left:1px solid #e1e6ec}.grammar-result-stats strong{color:#172033;font-size:28px;display:block}.grammar-result>button{color:#fff;background:#1859c9;border-radius:8px;justify-content:center;align-items:center;gap:8px;width:100%;height:50px;margin-top:10px;font-weight:700;display:flex}.grammar-result>button.secondary{color:#344054;background:#fff;border:1px solid #dce2e9}.grammar-result>button svg{width:17px}@media (max-width:640px){.grammar-topic-list{margin:12px}.grammar-topic-row{grid-template-columns:34px 1fr;gap:10px;padding:16px 14px}.grammar-topic-action{display:none}.grammar-options{grid-template-columns:1fr}.grammar-question-card{padding-top:34px}.grammar-practice-head{gap:9px}}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}button,a,input,select,textarea{touch-action:manipulation}html,body{min-height:100%;margin:0;overflow-x:hidden}.expression-shell{background:#f8fafc;width:min(100%,920px);min-height:100dvh;margin:0 auto;padding:18px clamp(14px,3vw,28px) 48px}.expression-header{border-bottom:1px solid #dce3ea;grid-template-columns:42px 1fr auto;align-items:center;gap:12px;min-height:58px;display:grid}.expression-header h1{color:#172133;letter-spacing:0;margin:0;font-size:20px;line-height:1.2}.expression-header p{color:#697586;letter-spacing:0;margin:4px 0 0;font-size:12px}.expression-icon-btn,.expression-round-action{color:#344054;cursor:pointer;background:#fff;border:1px solid #d5dde6;border-radius:8px;flex:none;justify-content:center;align-items:center;width:40px;height:40px;display:inline-flex}.expression-icon-btn:disabled{opacity:.5}.expression-intro{color:#075e4e;background:#eaf7f3;border-left:4px solid #0e7c66;gap:14px;margin:24px 0 18px;padding:18px;display:flex}.expression-intro h2{color:#16423a;letter-spacing:0;margin:0 0 5px;font-size:18px}.expression-intro p{color:#46655f;margin:0;font-size:14px;line-height:1.6}.expression-state{color:#667085;justify-content:center;align-items:center;gap:10px;min-height:260px;display:flex}.expression-state button,.expression-error button{color:#075e4e;cursor:pointer;background:0 0;border:0;font-weight:700}.expression-error{color:#b42318}.expression-theme-list{gap:10px;display:grid}.expression-theme-row{text-align:left;color:#344054;cursor:pointer;background:#fff;border:1px solid #dce3ea;border-radius:8px;grid-template-columns:52px 1fr 24px;align-items:center;gap:14px;width:100%;min-height:98px;padding:14px 16px;display:grid;box-shadow:0 2px 8px #1018280d}.expression-theme-row:hover{border-color:#0e7c66}.expression-theme-mark{color:#fff;background:#d45a3a;border-radius:8px;place-items:center;width:48px;height:48px;font-size:21px;font-weight:800;display:grid}.expression-theme-copy{flex-direction:column;gap:2px;min-width:0;display:flex}.expression-theme-copy strong{color:#172133;font-size:17px}.expression-theme-copy span{color:#0e7c66;font-size:13px;font-weight:700}.expression-theme-copy small{color:#697586;margin-top:5px;font-size:12px;line-height:1.45}.expression-practice-shell{padding-bottom:72px}.expression-progress-copy{text-align:center}.expression-header-actions{align-items:center;gap:8px;display:flex}.expression-score-badge{color:#8b3c25;background:#fceee9;border-radius:8px;place-items:center;min-width:42px;height:30px;font-size:12px;font-weight:800;display:grid}.expression-ai-settings{background:#fff;border:1px solid #dce3ea;border-top:0;gap:10px;padding:14px 16px 16px;display:grid}.expression-ai-settings-head{color:#172133;justify-content:space-between;align-items:center;font-size:14px;display:flex}.expression-ai-settings-head button{color:#b42318;cursor:pointer;background:0 0;border:0;font-size:12px;font-weight:700}.expression-progress-track{background:#e4e7ec;height:4px;margin:0 -1px 22px;overflow:hidden}.expression-progress-track span{background:#0e7c66;height:100%;transition:width .25s;display:block}.expression-question{background:#fff;border:1px solid #dce3ea;border-radius:8px;padding:18px}.expression-image-strip{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:8px;margin-bottom:12px;display:grid}.expression-image-strip img{aspect-ratio:4/3;object-fit:cover;background:#eef1f4;border:1px solid #dce3ea;border-radius:8px;width:100%;display:block}.expression-question-label{color:#d45a3a;text-transform:uppercase;margin-bottom:9px;font-size:11px;font-weight:800}.expression-question-row{justify-content:space-between;align-items:center;gap:16px;display:flex}.expression-question h2{color:#172133;letter-spacing:0;margin:0;font-size:clamp(19px,3vw,25px);line-height:1.35}.expression-question p{color:#697586;margin:6px 0 0;font-size:14px}.expression-stage-tabs{background:#fff;border:1px solid #dce3ea;border-radius:8px;grid-template-columns:repeat(3,1fr);height:50px;margin:16px 0;display:grid;overflow:hidden}.expression-stage-tabs button{color:#667085;cursor:pointer;background:0 0;border:0;border-right:1px solid #e4e7ec;justify-content:center;align-items:center;gap:6px;min-width:0;font-weight:700;display:flex}.expression-stage-tabs button:last-child{border-right:0}.expression-stage-tabs button.active{color:#fff;background:#0e7c66}.expression-workspace{flex-direction:column;gap:14px;display:flex}.expression-level-switch,.expression-mode-switch{grid-template-columns:repeat(3,1fr);gap:6px;display:grid}.expression-mode-switch{grid-template-columns:repeat(2,1fr)}.expression-level-switch button,.expression-mode-switch button{color:#667085;cursor:pointer;background:#fff;border:1px solid #d5dde6;border-radius:8px;justify-content:center;align-items:center;gap:6px;min-height:42px;font-weight:700;display:flex}.expression-level-switch button.active,.expression-mode-switch button.active{color:#075e4e;background:#eaf7f3;border-color:#0e7c66}.expression-answer-card,.expression-pattern-card,.expression-revised{background:#fff8f5;border:1px solid #e2c8bf;border-radius:8px;padding:20px 64px 20px 20px;position:relative}.expression-answer-card p{color:#38251f;margin:0 0 10px;font-size:22px;font-weight:750;line-height:1.5}.expression-answer-card span{color:#775f57;font-size:14px;line-height:1.5}.expression-answer-card .expression-round-action,.expression-pattern-card .expression-round-action,.expression-revised .expression-round-action{position:absolute;top:16px;right:16px}.expression-pattern-card{background:#f0faf7;border-color:#bcded5}.expression-pattern-card>span,.expression-revised>span{color:#0e7c66;text-transform:uppercase;margin-bottom:8px;font-size:11px;font-weight:800;display:block}.expression-pattern-card strong{color:#173a33;font-size:20px;line-height:1.5;display:block}.expression-pattern-card p{color:#5d766f;margin:7px 0 0;font-size:13px}.expression-slot-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.expression-slot-list label{color:#667085;text-transform:uppercase;flex-direction:column;gap:5px;font-size:11px;font-weight:800;display:flex}.expression-slot-list select{color:#172133;width:100%;min-height:44px;font:inherit;text-transform:none;background:#fff;border:1px solid #d5dde6;border-radius:8px;padding:0 12px;font-size:14px}.expression-primary,.expression-secondary{color:#fff;cursor:pointer;background:#0e7c66;border:1px solid #0e7c66;border-radius:8px;justify-content:center;align-items:center;gap:8px;min-height:46px;padding:0 16px;font-weight:800;display:inline-flex}.expression-primary:disabled{opacity:.5;cursor:default}.expression-secondary{color:#075e4e;background:#fff}.expression-muted{color:#667085;text-align:center}.expression-record{color:#075e4e;cursor:pointer;background:#eff9f6;border:1px dashed #0e7c66;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:7px;min-height:132px;display:flex}.expression-record strong{font-size:16px}.expression-record span{color:#61736f;font-size:12px}.expression-record.recording{color:#b42318;background:#fff1f0;border-color:#c4322b}.expression-answer-input{color:#475467;flex-direction:column;gap:7px;font-size:13px;font-weight:800;display:flex}.expression-answer-input textarea{resize:vertical;color:#172133;width:100%;min-height:112px;font:inherit;background:#fff;border:1px solid #cfd7e1;border-radius:8px;padding:13px 14px;font-size:16px;font-weight:500;line-height:1.55}.expression-answer-input textarea:focus{border-color:#0e7c66;outline:2px solid #0e7c662e}.expression-inline-error{color:#b42318;text-align:center;margin:0;font-size:13px}.expression-feedback{background:#fff;border:1px solid #dce3ea;border-radius:8px;flex-direction:column;gap:16px;padding:18px;display:flex}.expression-feedback-head{grid-template-columns:58px 1fr;align-items:center;gap:14px;display:grid}.expression-feedback-head>div:first-child{border-radius:8px;place-items:center;width:56px;height:56px;font-size:22px;font-weight:900;display:grid}.expression-feedback-head .passed{color:#075e4e;background:#dff4ed}.expression-feedback-head .retry{color:#9a3412;background:#ffeadf}.expression-feedback-head strong{color:#172133;font-size:15px}.expression-feedback-head p{color:#667085;margin:5px 0 0;font-size:13px}.expression-dimensions{grid-template-columns:repeat(4,1fr);gap:8px;display:grid}.expression-dimensions>div{color:#667085;grid-template-columns:1fr auto;gap:5px;min-width:0;font-size:11px;display:grid}.expression-dimensions strong{color:#344054}.expression-dimensions i{background:#eaecf0;grid-column:1/-1;height:5px;overflow:hidden}.expression-dimensions b{background:#d45a3a;height:100%;display:block}.expression-revised{padding-top:16px;padding-bottom:16px}.expression-revised p{color:#38251f;margin:0;font-size:16px;font-weight:700;line-height:1.5}.expression-feedback ul{color:#697586;margin:0;padding-left:20px;font-size:13px;line-height:1.7}.expression-footer-actions{grid-template-columns:1fr 1fr;gap:10px;display:grid}.expression-footer-actions>:only-child{grid-column:1/-1}.expression-skip-actions{grid-template-columns:1fr;display:grid}.expression-mode-entry{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-bottom:24px;display:grid}.expression-mode-entry>div,.expression-mode-entry>button{color:#344054;text-align:left;background:#fff;border:1px solid #dce3ea;border-radius:8px;grid-template-columns:28px 1fr auto;align-items:center;gap:10px;min-width:0;min-height:76px;padding:13px 14px;display:grid}.expression-mode-entry>button{cursor:pointer}.expression-mode-entry>div.active{color:#075e4e;background:#eaf7f3;border-color:#0e7c66}.expression-mode-entry span{flex-direction:column;gap:3px;min-width:0;display:flex}.expression-mode-entry strong{color:inherit;font-size:15px}.expression-mode-entry small{color:#697586;font-size:11px;line-height:1.35}.expression-list-heading{color:#344054;letter-spacing:0;margin:0 0 10px;font-size:15px}.expression-dialogue-list{gap:10px;display:grid}.expression-dialogue-row{color:#344054;text-align:left;cursor:pointer;background:#fff;border:1px solid #dce3ea;border-radius:8px;grid-template-columns:72px 1fr 24px;align-items:center;gap:14px;width:100%;min-height:104px;padding:12px 16px;display:grid}.expression-dialogue-row:hover{border-color:#0e7c66}.expression-dialogue-thumb{color:#697586;background:#f2f4f7;border:1px dashed #c5cdd7;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:4px;width:68px;height:68px;display:flex}.expression-dialogue-thumb small{font-size:10px}.expression-dialogue-practice{padding-bottom:72px}.expression-dialogue-task{margin-top:18px}.expression-dialogue-images{grid-auto-columns:minmax(116px,1fr);grid-auto-flow:column;gap:8px;margin:10px 0 14px;padding-bottom:3px;display:grid;overflow-x:auto}.expression-dialogue-images figure{aspect-ratio:4/3;color:#697586;background:#fff;border:1px solid #dce3ea;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:8px;min-width:0;margin:0;display:flex;overflow:hidden}.expression-dialogue-images figure.empty{background:#f2f4f7;border-style:dashed}.expression-dialogue-images img{object-fit:cover;width:100%;height:calc(100% - 28px)}.expression-dialogue-images figcaption{text-align:center;overflow-wrap:anywhere;max-width:100%;padding:0 6px;font-size:11px;font-weight:700}.expression-role-picker,.expression-dialogue-composer{background:#fff;border:1px solid #dce3ea;border-radius:8px;flex-direction:column;gap:14px;padding:18px;display:flex}.expression-role-heading{color:#075e4e;align-items:center;gap:10px;display:flex}.expression-role-heading>div{flex-direction:column;gap:2px;display:flex}.expression-role-heading strong{color:#172133;font-size:16px}.expression-role-heading span{color:#697586;font-size:12px}.expression-role-options{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.expression-role-options button{color:#075e4e;cursor:pointer;background:#f0faf7;border:1px solid #bcded5;border-radius:8px;flex-direction:column;justify-content:center;align-items:flex-start;gap:5px;min-height:82px;padding:12px 14px;display:flex}.expression-role-options strong{font-size:17px}.expression-role-options span{color:#5d766f;font-size:12px}.expression-language-bank{flex-direction:column;gap:8px;display:flex}.expression-language-bank>span{color:#697586;text-transform:uppercase;font-size:11px;font-weight:800}.expression-language-bank>div{flex-wrap:wrap;gap:6px;display:flex}.expression-language-bank button{color:#8b3c25;cursor:pointer;background:#fff8f5;border:1px solid #e2c8bf;border-radius:999px;align-items:center;gap:5px;min-height:34px;padding:5px 10px;font-size:12px;font-weight:700;display:inline-flex}.expression-language-bank.compact{overflow-x:auto}.expression-language-bank.compact>div{flex-wrap:nowrap}.expression-language-bank.compact button{white-space:nowrap}.expression-dialogue-chat{background:#f2f4f7;border:1px solid #dce3ea;border-radius:8px 8px 0 0;flex-direction:column;gap:12px;min-height:260px;max-height:48vh;padding:16px;display:flex;overflow-y:auto}.expression-chat-empty{color:#697586;text-align:center;margin:auto;font-size:13px}.expression-chat-turn{flex-direction:column;gap:4px;width:min(82%,540px);display:flex}.expression-chat-turn.mine{align-self:flex-end;align-items:flex-end}.expression-chat-turn.partner{align-self:flex-start}.expression-chat-turn>span{color:#697586;text-transform:uppercase;font-size:10px;font-weight:800}.expression-chat-turn>div{background:#fff;border-radius:8px;align-items:flex-start;gap:7px;padding:10px 12px;display:flex}.expression-chat-turn.mine>div{color:#fff;background:#0e7c66}.expression-chat-turn p{overflow-wrap:anywhere;flex:1;margin:0;font-size:15px;line-height:1.5}.expression-chat-turn button{width:26px;height:26px;color:inherit;cursor:pointer;background:#ffffff2e;border:0;border-radius:50%;flex:none;place-items:center;display:grid}.expression-chat-thinking{color:#697586;align-items:center;gap:7px;font-size:12px;display:flex}.expression-dialogue-composer{border-top:0;border-radius:0 0 8px 8px}.expression-dialogue-composer label{color:#475467;flex-direction:column;gap:6px;font-size:12px;font-weight:800;display:flex}.expression-dialogue-composer textarea{resize:vertical;color:#172133;width:100%;font:inherit;background:#fff;border:1px solid #cfd7e1;border-radius:8px;padding:11px 12px;font-size:15px;font-weight:500;line-height:1.5}.expression-dialogue-composer textarea:focus{border-color:#0e7c66;outline:2px solid #0e7c662e}.expression-composer-actions{grid-template-columns:48px 1fr;gap:8px;display:grid}.expression-record-small{color:#075e4e;cursor:pointer;background:#eff9f6;border:1px solid #0e7c66;border-radius:8px;justify-content:center;align-items:center;gap:3px;width:48px;min-height:46px;display:inline-flex}.expression-record-small.recording{color:#b42318;background:#fff1f0;border-color:#c4322b}.expression-record-small span{font-size:10px}.expression-dialogue-finish{justify-content:space-between;align-items:center;gap:10px;display:flex}.expression-dialogue-finish>span{color:#697586;font-size:12px}.expression-dialogue-finish button:disabled{opacity:.5;cursor:default}.expression-dialogue-feedback{margin-top:14px}.expression-feedback-phrases{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.expression-feedback-phrases span{color:#697586;text-transform:uppercase;width:100%;font-size:11px;font-weight:800}.expression-feedback-phrases b{color:#8b3c25;background:#fff0ea;border-radius:999px;padding:6px 9px;font-size:12px}@media (max-width:560px){.expression-mode-entry{grid-template-columns:1fr}.expression-dialogue-row{grid-template-columns:58px 1fr 18px;gap:10px;padding:10px}.expression-dialogue-thumb{width:56px;height:62px}.expression-role-options{grid-template-columns:1fr}.expression-dialogue-finish{flex-direction:column;align-items:stretch}.expression-dialogue-finish>span{text-align:center}.expression-chat-turn{width:92%}.expression-dimensions{grid-template-columns:repeat(2,1fr)}}.ket-writing-shell{background:#f7f8fb;min-height:100dvh;padding:16px}.ket-writing-header{grid-template-columns:44px 1fr 44px;align-items:center;gap:10px;max-width:1180px;margin:0 auto 14px;display:grid}.ket-writing-header h1{color:#172133;text-align:center;margin:0;font-size:21px;line-height:1.2}.ket-writing-header p{color:#667085;text-align:center;margin:4px 0 0;font-size:12px}.ket-writing-layout{grid-template-columns:280px 1fr;align-items:start;gap:14px;max-width:1180px;margin:0 auto;display:grid}.ket-writing-sidebar,.ket-writing-main,.ket-writing-task-card,.ket-writing-study-card,.ket-writing-feedback{background:#fff;border:1px solid #dce3ea;border-radius:8px}.ket-writing-sidebar{padding:12px;position:sticky;top:14px}.ket-writing-filter{color:#172133;justify-content:space-between;align-items:center;margin-bottom:10px;display:flex}.ket-writing-filter span{color:#667085;font-size:12px}.ket-writing-bank-warning{color:#9a3412;background:#fff7ed;border-radius:8px;margin:0 0 10px;padding:8px 10px;font-size:12px;line-height:1.5}.ket-writing-task-list{flex-direction:column;gap:8px;display:flex}.ket-writing-task-list button{text-align:left;background:#fff;border:1px solid #e4e7ec;border-radius:8px;width:100%;min-height:78px;padding:10px}.ket-writing-task-list button.active{background:#eaf7f3;border-color:#0e7c66}.ket-writing-task-list span{color:#0e7c66;margin-bottom:5px;font-size:11px;font-weight:800;display:inline-flex}.ket-writing-task-list strong{color:#172133;font-size:14px;display:block}.ket-writing-task-list small{color:#667085;margin-top:4px;font-size:11px;display:block}.ket-writing-pagination{border-top:1px solid #e4e7ec;grid-template-columns:64px 1fr 64px;align-items:center;gap:8px;margin-top:10px;padding-top:10px;display:grid}.ket-writing-pagination button{color:#344054;background:#fff;border:1px solid #cfd7e2;border-radius:8px;height:32px;font-size:12px;font-weight:800}.ket-writing-pagination button:disabled{color:#98a2b3;background:#f8fafc}.ket-writing-pagination span{color:#667085;text-align:center;gap:2px;font-size:11px;line-height:1.2;display:grid}.ket-writing-pagination b{color:#172133;font-size:12px}.ket-writing-main{flex-direction:column;gap:14px;padding:14px;display:flex}.ket-writing-task-card{background:#fffdf8;border-color:#f1d6b8;padding:16px}.ket-writing-task-meta{flex-wrap:wrap;gap:6px;margin-bottom:10px;display:flex}.ket-writing-task-meta span{color:#9a3412;background:#fff;border-radius:999px;padding:4px 8px;font-size:11px;font-weight:800}.ket-writing-task-card h2{color:#172133;letter-spacing:0;margin:0;font-size:22px}.ket-writing-task-card p{color:#344054;margin:10px 0 0;font-size:15px;line-height:1.55}.ket-writing-task-card small{color:#667085;margin-top:6px;font-size:13px;display:block}.ket-writing-requirements{color:#475467;margin:12px 0 0;padding-left:20px;font-size:13px;line-height:1.7}.ket-writing-pictures{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.ket-writing-pictures img,.ket-writing-pictures div{aspect-ratio:4/3;object-fit:cover;background:#f8fafc;border:1px dashed #cbd5e1;border-radius:8px;width:100%}.ket-writing-pictures div{color:#667085;align-content:center;place-items:center;gap:4px;font-size:12px;display:grid}.ket-writing-pictures small{color:#98a2b3}.ket-writing-prompts{color:#475467;gap:6px;font-size:13px;display:grid}.ket-writing-prompts p{background:#f2f4f7;border-radius:8px;margin:0;padding:9px 10px}.ket-writing-mode{border:1px solid #dce3ea;border-radius:8px;grid-template-columns:repeat(3,1fr);display:grid;overflow:hidden}.ket-writing-mode button{color:#475467;background:#fff;border:0;border-right:1px solid #dce3ea;height:42px;font-weight:800}.ket-writing-mode button:last-child{border-right:0}.ket-writing-mode button.active{color:#fff;background:#0e7c66}.ket-writing-last-attempt{background:#f5f8ff;border:1px solid #c7d7fe;border-radius:8px;justify-content:space-between;align-items:center;gap:10px;padding:12px;display:flex}.ket-writing-last-attempt div{gap:3px;min-width:0;display:grid}.ket-writing-last-attempt strong{color:#172133;font-size:14px}.ket-writing-last-attempt span{color:#475467;font-size:12px;line-height:1.5}.ket-writing-last-attempt button{flex:none}.ket-writing-study-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.ket-writing-study-card{min-width:0;padding:14px}.ket-writing-card-head{color:#0e7c66;align-items:center;gap:8px;margin-bottom:10px;display:flex}.ket-writing-card-head button{color:#0e7c66;background:0 0;border:0;margin-left:auto;font-weight:800}.ket-writing-study-card pre,.ket-writing-feedback pre{white-space:pre-wrap;color:#344054;font:inherit;margin:0;line-height:1.55}.ket-writing-ai-card{background:#f8fbff;border-color:#bfdbfe}.ket-writing-ai-fields{gap:9px;display:grid}.ket-writing-ai-fields label{flex-direction:column;gap:5px;display:flex}.ket-writing-ai-fields span{color:#475467;font-size:12px;font-weight:800}.ket-writing-ai-fields input{color:#172133;background:#fff;border:1px solid #cfd7e2;border-radius:8px;width:100%;height:38px;padding:0 10px;font-size:14px}.ket-writing-ai-fields input:focus{border-color:#175cd3;outline:2px solid #175cd329}.ket-writing-ai-result{background:#fff;border:1px solid #dbeafe;border-radius:8px;flex-direction:column;gap:10px;margin-top:12px;padding:12px;display:flex}.ket-writing-ai-result ul{color:#475467;margin:0;padding-left:18px;font-size:12px;line-height:1.6}.ket-writing-support{flex-wrap:wrap;gap:6px;display:flex}.ket-writing-support span{color:#175cd3;background:#eef6ff;border-radius:999px;padding:6px 9px;font-size:12px;font-weight:700}.ket-writing-editor{flex-direction:column;gap:8px;display:flex}.ket-writing-editor>span{color:#475467;align-items:center;gap:6px;font-size:13px;font-weight:800;display:flex}.ket-writing-editor b{color:#0e7c66;margin-left:auto;font-size:12px}.ket-writing-editor textarea{resize:vertical;color:#172133;background:#fff;border:1px solid #cfd7e2;border-radius:8px;width:100%;padding:12px;font-size:16px;line-height:1.6}.ket-writing-editor textarea:focus{border-color:#0e7c66;outline:2px solid #0e7c662e}.ket-writing-feedback{flex-direction:column;gap:14px;padding:16px;display:flex}.ket-writing-feedback-level{color:#075e4e;background:#eaf7f3;border-radius:8px;align-items:center;gap:9px;padding:12px;display:flex}.ket-writing-feedback-level.practice{color:#b42318;background:#fff1f0}.ket-writing-feedback-level.almost{color:#9a3412;background:#fff7ed}.ket-writing-dimensions{grid-template-columns:repeat(4,1fr);gap:8px;display:grid}.ket-writing-dimensions div{border:1px solid #e4e7ec;border-radius:8px;padding:10px}.ket-writing-dimensions span{color:#667085;font-size:11px;display:block}.ket-writing-dimensions strong{color:#172133;margin-top:5px;font-size:13px;display:block}.ket-writing-feedback-block h3{color:#172133;margin:0 0 8px;font-size:15px}.ket-writing-feedback-block ul{color:#475467;margin:0;padding-left:20px;font-size:13px;line-height:1.7}.ket-writing-correction{background:#fbfcfe;border:1px solid #e4e7ec;border-radius:8px;gap:6px;padding:10px;display:grid}.ket-writing-correction+.ket-writing-correction{margin-top:8px}.ket-writing-correction p{color:#344054;margin:0;font-size:13px}.ket-writing-correction span{color:#667085;min-width:42px;font-weight:800;display:inline-block}.ket-writing-correction small{color:#9a3412;font-size:12px}.ket-writing-next-goal{color:#344054;background:#f2f4f7;border-radius:8px;padding:11px 12px;font-size:13px;font-weight:700}@media (max-width:820px){.ket-writing-shell{padding-inline:12px}.ket-writing-layout{grid-template-columns:1fr}.ket-writing-sidebar{position:static}.ket-writing-task-list{grid-auto-columns:minmax(190px,1fr);grid-auto-flow:column;padding-bottom:4px;display:grid;overflow-x:auto}.ket-writing-pagination{max-width:360px;margin-inline:auto}.ket-writing-study-grid,.ket-writing-pictures,.ket-writing-dimensions{grid-template-columns:1fr}}@media (max-width:560px){.expression-shell{padding-inline:12px}.expression-question h2{font-size:19px}.expression-stage-tabs button{font-size:12px}.expression-answer-card p{font-size:18px}.expression-slot-list{grid-template-columns:1fr}.expression-dimensions{grid-template-columns:repeat(2,1fr)}.expression-footer-actions{grid-template-columns:1fr}}html{font-family:var(--font-body), ui-sans-serif, sans-serif}body{color:var(--fg);background:radial-gradient(1200px 520px at -10% -5%,#dbe9ff 0%,#0000 58%),radial-gradient(900px 460px at 120% -10%,#e0f3ff 0%,#0000 62%),linear-gradient(#f6f9ff 0%,#eef5ff 45%,#f9fbff 100%)}h1,h2,h3{font-family:var(--font-heading), ui-sans-serif, sans-serif}.loading-dot{border:3px solid #d4e3fb;border-top-color:var(--brand-2);border-radius:999px;width:42px;height:42px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.page-login{background:radial-gradient(140% 80% at 0 0,#c7dbff 0%,#0000 50%),radial-gradient(100% 70% at 100% 100%,#d4ecff 0%,#0000 50%),#f0f5ff;justify-content:center;align-items:center;min-height:100dvh;padding:16px;display:flex}.auth-shell{isolation:isolate;background:#fff;border-radius:28px;grid-template-columns:1fr;width:min(100%,960px);min-height:min(640px,100dvh - 32px);display:grid;position:relative;overflow:clip;box-shadow:0 1px 2px #0f28500f,0 8px 24px #0f285014,0 24px 60px #0f28501a}.auth-brand{z-index:1;pointer-events:none;color:#fff;background:linear-gradient(155deg,#0b3d91 0%,#1565c0 40%,#42a5f5 100%);flex-direction:column;justify-content:center;padding:40px 32px 36px;display:flex;position:relative;overflow:hidden}.auth-brand:before{content:"";pointer-events:none;background:radial-gradient(200px at 85% 20%,#ffffff1f,#0000),radial-gradient(300px at 10% 80%,#ffffff14,#0000);position:absolute;inset:0}.brand-deco{pointer-events:none;border:1.5px solid #ffffff26;border-radius:50%;position:absolute}.brand-deco-1{width:180px;height:180px;top:-40px;right:-40px}.brand-deco-2{width:120px;height:120px;bottom:-20px;left:-30px}.brand-deco-3{background:#ffffff0f;width:60px;height:60px;bottom:20%;right:30%}.brand-chip{letter-spacing:.03em;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#ffffff1a;border:1px solid #ffffff47;border-radius:999px;align-items:center;gap:6px;width:fit-content;margin:0 0 20px;padding:5px 14px;font-size:12px;font-weight:600;display:inline-flex;position:relative}.auth-brand h1{letter-spacing:-.035em;margin:0;font-size:clamp(28px,5vw,44px);font-weight:800;line-height:1.06;position:relative}.auth-brand .brand-subtitle{opacity:.88;max-width:360px;margin:16px 0 0;font-size:15px;line-height:1.65;position:relative}.brand-features{flex-wrap:wrap;gap:8px;margin-top:24px;display:flex;position:relative}.brand-feature{background:#ffffff1f;border-radius:999px;align-items:center;gap:6px;padding:6px 12px;font-size:12px;font-weight:600;display:inline-flex}.auth-card{z-index:3;pointer-events:auto;flex-direction:column;justify-content:center;padding:28px 24px;display:flex;position:relative}.auth-card-header{margin-bottom:24px}.auth-card-header h2{color:#0f2b52;letter-spacing:-.02em;margin:0;font-size:22px;font-weight:800}.auth-card-header p{color:#6b829e;margin:6px 0 0;font-size:14px}.mode-switch{z-index:5;background:#f0f4fb;border-radius:12px;grid-template-columns:repeat(2,1fr);padding:4px;display:grid;position:relative}.mode-switch button{color:#6b829e;cursor:pointer;pointer-events:auto;background:0 0;border:0;border-radius:9px;justify-content:center;align-items:center;min-height:40px;font-size:14px;font-weight:700;text-decoration:none;transition:all .2s;display:inline-flex}.mode-switch button.is-active{color:#0f2b52;background:#fff;box-shadow:0 1px 3px #0f28501a}.channel-switch{z-index:5;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:16px;display:grid;position:relative}.channel-switch button{color:#5a7194;cursor:pointer;pointer-events:auto;background:#fff;border:1.5px solid #e2eaf6;border-radius:10px;justify-content:center;align-items:center;gap:6px;min-height:40px;font-size:13px;font-weight:600;text-decoration:none;transition:all .2s;display:inline-flex}.channel-switch button:hover{background:#f8fbff;border-color:#c4d7f2}.channel-switch button.is-active{color:#1256b0;background:linear-gradient(#f5faff 0%,#e8f2ff 100%);border-color:#7fb3f0;box-shadow:0 0 0 1px #1f66cc14}.form-grid{gap:14px;margin-top:20px;display:grid}.field{gap:6px;display:grid}.field-label{color:#2d4564;font-size:13px;font-weight:600}.field-control{position:relative}.field-input{color:#162c4e;background:#fafcff;border:1.5px solid #dce6f4;border-radius:11px;outline:none;width:100%;min-height:46px;padding:0 14px;font-size:15px;transition:border-color .2s,box-shadow .2s}.field-input::placeholder{color:#a4b5cc}.field-input:focus{background:#fff;border-color:#6aa3e8;box-shadow:0 0 0 3px #2a7ae21a}:is(.field-control:has(.password-toggle) .field-input,.field-control:has(.code-btn) .field-input){padding-right:78px}.password-toggle,.code-btn{color:#6b829e;cursor:pointer;background:0 0;border:0;border-radius:8px;justify-content:center;align-items:center;min-width:30px;min-height:30px;font-weight:700;transition:color .15s;display:inline-flex;position:absolute;top:50%;right:8px;transform:translateY(-50%)}.password-toggle:hover{color:#3a5a84}.code-btn{color:#1256b0;background:#f0f6ff;border:1.5px solid #c4d7f2;border-radius:8px;min-width:60px;font-size:12px;transition:all .15s}.code-btn:hover:not(:disabled){background:#e4efff}.code-btn:disabled{cursor:not-allowed;opacity:.55}.field-error{color:var(--danger);font-size:12px}.status{border-radius:10px;margin:0;padding:10px 12px;font-size:13px;font-weight:500}.status.is-error{color:#9f1d16;background:#fef2f1;border:1px solid #fdd}.status.is-success{color:#085d3a;background:#edfbf2;border:1px solid #c6efd8}.remember-login{color:#4d6588;cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:9px;font-size:13px;font-weight:600;display:inline-flex}.remember-login input{opacity:0;pointer-events:none;position:absolute}.remember-login-box{color:#fff;background:#fff;border:1.5px solid #c4d7f2;border-radius:6px;flex:none;justify-content:center;align-items:center;width:20px;height:20px;transition:all .15s;display:inline-flex}.remember-login input:checked+.remember-login-box{background:#1767cf;border-color:#1767cf}.remember-login:has(input:focus-visible) .remember-login-box{box-shadow:0 0 0 3px #2a7ae224}.submit-btn{color:#fff;cursor:pointer;background:linear-gradient(135deg,#1358c4 0%,#2e8bf0 100%);border:0;border-radius:12px;justify-content:center;align-items:center;gap:8px;width:100%;min-height:48px;margin-top:4px;font-size:15px;font-weight:700;transition:transform .15s,box-shadow .15s;display:inline-flex;box-shadow:0 4px 12px #125abb33}.submit-btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 20px #125abb47}.submit-btn:active:not(:disabled){transform:translateY(0)}.submit-btn:disabled{cursor:not-allowed;opacity:.72}.home-shell{background:linear-gradient(#f0f5ff 0%,#f8faff 40%,#fff 100%);min-height:100dvh}.home-header{z-index:40;-webkit-backdrop-filter:blur(12px)saturate(180%);backdrop-filter:blur(12px)saturate(180%);background:#ffffffd1;border-bottom:1px solid #0000000f;position:sticky;top:0}.home-header-inner{justify-content:space-between;align-items:center;max-width:960px;height:56px;margin:0 auto;padding:0 20px;display:flex}.home-logo{color:#0f2b52;letter-spacing:-.02em;margin:0;font-size:18px;font-weight:800}.home-header-actions{align-items:center;gap:6px;display:flex}.home-icon-btn{appearance:none;color:#5a7194;cursor:pointer;background:0 0;border:0;border-radius:10px;justify-content:center;align-items:center;width:36px;height:36px;transition:background .15s;display:inline-flex}.home-icon-btn:hover{background:#eef3fb}.home-user-menu-wrap{position:relative}.home-user-btn{appearance:none;cursor:pointer;background:#fff;border:1px solid #e2eaf6;border-radius:999px;align-items:center;gap:6px;height:36px;padding:0 10px 0 6px;transition:border-color .15s;display:inline-flex}.home-user-btn:hover{border-color:#c4d7f2}.home-user-avatar{background:#eef3fb;border-radius:50%;justify-content:center;align-items:center;width:26px;height:26px;display:flex}.home-menu-backdrop{z-index:50;position:fixed;inset:0}.home-menu-dropdown{z-index:51;background:#fff;border:1px solid #e8eef6;border-radius:14px;min-width:160px;padding:6px;animation:.15s menuIn;position:absolute;top:calc(100% + 6px);right:0;box-shadow:0 8px 30px #0000001f}@keyframes menuIn{0%{opacity:0;transform:translateY(-4px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}.home-menu-item{appearance:none;text-align:left;color:#2d4564;cursor:pointer;background:0 0;border:0;border-radius:9px;align-items:center;gap:8px;width:100%;padding:8px 12px;font-size:14px;transition:background .12s;display:flex}.home-menu-item:hover{background:#f0f5fb}.home-menu-danger{color:#c0392b}.home-menu-divider{background:#eef2f8;height:1px;margin:4px 8px}.home-hero{max-width:960px;margin:0 auto;padding:20px;position:relative}.home-hero-content{color:#fff;background:linear-gradient(155deg,#0b3d91 0%,#1565c0 40%,#42a5f5 100%);border-radius:24px;padding:32px 28px;position:relative;overflow:hidden}.home-hero-deco{display:none}.home-hero-content:before{content:"";pointer-events:none;background:radial-gradient(200px at 90% 10%,#ffffff1f,#0000),radial-gradient(160px at 5% 90%,#ffffff14,#0000);position:absolute;inset:0}.home-hero-badge{background:#ffffff1a;border:1px solid #ffffff40;border-radius:999px;align-items:center;gap:5px;margin:0 0 14px;padding:4px 12px;font-size:12px;font-weight:600;display:inline-flex;position:relative}.home-hero-title{letter-spacing:-.03em;margin:0;font-size:clamp(24px,4vw,36px);font-weight:800;line-height:1.1;position:relative}.home-hero-subtitle{opacity:.85;margin:12px 0 0;font-size:14px;line-height:1.5;position:relative}.home-sections{flex-direction:column;gap:24px;max-width:960px;margin:0 auto;padding:4px 20px 40px;display:flex}.home-section{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#fffc;border:1px solid #e4ecf6;border-radius:20px;padding:20px}.home-section-head{align-items:center;gap:12px;margin-bottom:16px;display:flex}.home-section-icon{color:#1565c0;background:linear-gradient(135deg,#eef4ff 0%,#dde8fb 100%);border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;display:flex}.home-section-title{color:#0f2b52;margin:0;font-size:16px;font-weight:700}.home-section-subtitle{color:#7b8ea6;margin:2px 0 0;font-size:13px}.home-app-grid{grid-template-columns:repeat(2,1fr);gap:10px;display:grid}.home-app-card{appearance:none;text-align:center;background:#fff;border:1.5px solid #e4ecf6;border-radius:16px;flex-direction:column;align-items:center;gap:8px;padding:16px 12px;transition:all .2s;display:flex}.home-app-enabled{cursor:pointer}.home-app-enabled:hover{border-color:#b8d0f0;transform:translateY(-2px);box-shadow:0 4px 16px #1565c01a}.home-app-enabled:active{transform:translateY(0)}.home-app-disabled{background:#f8fafc;border-color:#edf1f7}.home-app-icon{color:#98a8be;background:#f0f4fa;border-radius:12px;justify-content:center;align-items:center;width:44px;height:44px;display:flex}.home-app-icon-active{color:#1565c0;background:linear-gradient(135deg,#e8f0ff 0%,#d0e2ff 100%)}.home-app-label{color:#2d4564;font-size:14px;font-weight:600}.home-app-disabled .home-app-label{color:#98a8be}.home-app-badge{color:#a8b8cc;background:#f6f9fc;border:1px solid #e8eef6;border-radius:999px;padding:1px 8px;font-size:11px}.home-overlay{z-index:60;background:#0000004d;animation:.2s fadeIn;position:fixed;inset:0}@keyframes fadeIn{0%{opacity:0}}.home-sheet{z-index:61;padding:12px 24px calc(24px + env(safe-area-inset-bottom));background:#fff;border-radius:20px 20px 0 0;max-height:70dvh;animation:.25s sheetUp;position:fixed;bottom:0;left:0;right:0;overflow-y:auto;box-shadow:0 -8px 30px #0000001f}@keyframes sheetUp{0%{transform:translateY(100%)}}.home-sheet-handle{background:#dde4ee;border-radius:2px;width:36px;height:4px;margin:0 auto 12px}.home-sheet-header{justify-content:space-between;align-items:center;display:flex}.home-sheet-refresh{appearance:none;color:#1565c0;cursor:pointer;background:#f8fbff;border:1px solid #e2eaf6;border-radius:999px;align-items:center;gap:4px;padding:4px 12px;font-size:12px;font-weight:600;display:inline-flex}.home-sheet-refresh:disabled{opacity:.6;cursor:not-allowed}@media (min-width:640px){.home-app-grid{grid-template-columns:repeat(3,1fr)}}@media (min-width:860px){.home-app-grid{grid-template-columns:repeat(4,1fr)}.home-hero-content{padding:40px 36px}.home-sheet{border-radius:20px;max-width:480px;animation:.2s sheetPopIn;bottom:20px;left:auto;right:20px}@keyframes sheetPopIn{0%{opacity:0;transform:translateY(10px)scale(.97)}}}.yle-shell{background:linear-gradient(#f0f5ff 0%,#f8faff 40%,#fff 100%);min-height:100dvh}.yle-header{z-index:40;-webkit-backdrop-filter:blur(12px)saturate(180%);backdrop-filter:blur(12px)saturate(180%);background:#ffffffd1;border-bottom:1px solid #0000000f;justify-content:space-between;align-items:center;height:56px;padding:0 16px;display:flex;position:sticky;top:0}.yle-back{appearance:none;color:#1565c0;cursor:pointer;background:0 0;border:0;align-items:center;gap:4px;min-width:72px;font-size:14px;font-weight:600;display:inline-flex}.yle-header-title{color:#0f2b52;margin:0;font-size:17px;font-weight:700}.yle-tabs{gap:8px;max-width:960px;margin:0 auto;padding:16px 20px 0;display:flex}.yle-tab{appearance:none;color:#5a7194;cursor:pointer;text-align:center;background:#fff;border:1.5px solid #e2eaf6;border-radius:12px;flex:1;padding:10px 20px;font-size:14px;font-weight:600;transition:all .2s}.yle-tab:hover{border-color:#c4d7f2}.yle-tab-active{color:#fff;background:linear-gradient(135deg,#1358c4 0%,#2e8bf0 100%);border-color:#0000;box-shadow:0 4px 12px #125abb33}.yle-content{max-width:960px;margin:0 auto;padding:20px}.yle-content-header{align-items:baseline;gap:10px;margin-bottom:16px;display:flex}.yle-content-title{color:#0f2b52;margin:0;font-size:20px;font-weight:800}.yle-content-count{color:#7b8ea6;font-size:13px}.yle-empty{color:#98a8be;flex-direction:column;align-items:center;gap:8px;padding:60px 0;font-size:14px;display:flex}.yle-book-grid{grid-template-columns:repeat(2,1fr);gap:16px;display:grid}.yle-book-card{appearance:none;cursor:pointer;text-align:left;background:#fff;border:1.5px solid #e4ecf6;border-radius:18px;padding:0;transition:all .2s;overflow:hidden}.yle-book-card:hover{border-color:#b8d0f0;transform:translateY(-3px);box-shadow:0 6px 20px #1565c01a}.yle-book-card:active{transform:translateY(0)}.yle-book-cover{aspect-ratio:3/4;background:#f0f4fb;width:100%;overflow:hidden}.yle-book-img{object-fit:cover;width:100%;height:100%}.yle-book-placeholder{text-align:center;color:#7b8ea6;background:linear-gradient(#f0f5ff 0%,#e6efff 100%);flex-direction:column;justify-content:center;align-items:center;gap:8px;width:100%;height:100%;padding:12px;font-size:12px;font-weight:600;display:flex}.yle-book-info{padding:12px 14px 14px}.yle-book-name{color:#0f2b52;font-size:14px;font-weight:700;line-height:1.3;display:block}.yle-book-pub{color:#7b8ea6;margin-top:4px;font-size:12px;display:block}@media (min-width:640px){.yle-book-grid{grid-template-columns:repeat(3,1fr)}}@media (min-width:860px){.yle-book-grid{grid-template-columns:repeat(4,1fr)}.yle-tabs{max-width:400px;margin:0 auto}}.exam-shell{background:#f5f8fc;flex-direction:column;height:100dvh;display:flex;overflow:hidden}.exam-header{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:20;background:#ffffffe6;border-bottom:1px solid #0000000f;flex-shrink:0;justify-content:space-between;align-items:center;height:52px;padding:0 12px;display:flex}.exam-header-center{flex-direction:column;align-items:center;gap:1px;display:flex}.exam-header-title{color:#0f2b52;margin:0;font-size:15px;font-weight:700}.exam-header-progress{color:#7b8ea6;font-size:11px}.exam-body{flex-direction:column;flex:1;min-height:0;display:flex}.exam-left{background:#fff;border-bottom:1px solid #e8eef6;flex-shrink:0;max-height:50dvh;overflow-y:auto}.exam-left-closed{max-height:none}.exam-settings-toggle{appearance:none;color:#2d4564;cursor:pointer;background:0 0;border:0;align-items:center;gap:8px;width:100%;padding:10px 16px;font-size:14px;font-weight:600;display:flex}.exam-settings{gap:10px;padding:0 16px 12px;display:grid}.exam-setting-group{flex-direction:column;gap:4px;display:flex}.exam-setting-label{color:#5a7194;font-size:12px;font-weight:600}.exam-select{appearance:none;color:#162c4e;cursor:pointer;background:#fafcff url("data:image/svg+xml,%3Csvg width='10' height='6' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%235a7194' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") right 10px center no-repeat;border:1.5px solid #dce6f4;border-radius:9px;outline:none;width:100%;height:36px;padding:0 28px 0 10px;font-size:13px}.exam-select:focus{border-color:#6aa3e8;box-shadow:0 0 0 2px #2a7ae21a}.exam-seat-control{background:#f3f6fa;border:1px solid #dce6f4;border-radius:8px;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;padding:4px;display:grid}.exam-seat-option{appearance:none;color:#5a7194;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:6px;min-width:0;padding:7px 6px;font-size:12px;font-weight:700}.exam-seat-option span{color:#8495ac;margin-top:2px;font-size:10px;font-weight:600;display:block}.exam-seat-option-active{color:#154f91;background:#fff;border-color:#9bbce6;box-shadow:0 1px 3px #183a6214}.exam-seat-option:disabled{cursor:not-allowed;opacity:.6}.exam-setting-row{justify-content:space-between;align-items:center;min-height:32px;display:flex}.exam-toggle{appearance:none;cursor:pointer;background:#dce6f4;border:0;border-radius:11px;width:40px;height:22px;transition:background .2s;position:relative}.exam-toggle-on{background:#1565c0}.exam-toggle-thumb{background:#fff;border-radius:50%;width:18px;height:18px;transition:transform .2s;position:absolute;top:2px;left:2px;box-shadow:0 1px 3px #00000026}.exam-toggle-on .exam-toggle-thumb{transform:translate(18px)}.exam-start-area{flex-direction:column;gap:10px;padding:12px 16px;display:flex}.exam-status-badge{border:1px solid;border-radius:999px;align-self:flex-start;padding:4px 12px;font-size:12px;font-weight:600;display:inline-flex}.exam-action-row{align-items:center;gap:8px;display:flex}.exam-start-btn{appearance:none;color:#fff;cursor:pointer;background:linear-gradient(135deg,#1358c4 0%,#2e8bf0 100%);border:0;border-radius:12px;align-items:center;gap:6px;height:40px;padding:0 20px;font-size:14px;font-weight:700;transition:transform .15s;display:inline-flex;box-shadow:0 3px 10px #125abb2e}.exam-start-btn:hover:not(:disabled){transform:translateY(-1px)}.exam-start-btn:disabled{opacity:.6;cursor:not-allowed}.exam-stop-tts{appearance:none;color:#92400e;cursor:pointer;background:#fffbeb;border:1px solid #fbbf24;border-radius:8px;align-items:center;gap:4px;height:32px;padding:0 12px;font-size:12px;font-weight:600;display:inline-flex}.exam-images{background:#fff;border-bottom:1px solid #e8eef6;flex-shrink:0;justify-content:center;gap:8px;max-height:35dvh;padding:10px 12px;display:flex;overflow:hidden}.exam-images-single{max-height:40dvh}.exam-image{object-fit:contain;background:#f8fafc;border:1px solid #e4ecf6;border-radius:10px;max-height:100%}.exam-images-single .exam-image{max-width:100%}.exam-images-pair .exam-image{flex:1;min-width:0;max-width:calc(50% - 4px)}.exam-right{flex-direction:column;flex:1;min-height:0;display:flex}.exam-chat{flex-direction:column;flex:1;gap:8px;padding:16px;display:flex;overflow-y:auto}.exam-chat-empty{color:#98a8be;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:8px;font-size:14px;display:flex}.exam-ket-room{flex-direction:column;flex:1;gap:10px;min-height:0;padding:12px;display:flex;overflow-y:auto}.exam-ket-role{background:#fff;border:1px solid #dce5ef;border-left:4px solid #7f96b2;border-radius:8px;flex-direction:column;min-width:0;transition:border-color .2s,box-shadow .2s;display:flex;overflow:hidden}.exam-ket-role-examiner{border-left-color:#3777bd;min-height:126px;max-height:190px}.exam-ket-role-candidateA{border-left-color:#3b8c62}.exam-ket-role-candidateB{border-left-color:#c17b2d}.exam-ket-role-active{border-color:#4b86c6;box-shadow:0 0 0 2px #2e74bf1f}.exam-ket-role-header{background:#f9fbfd;border-bottom:1px solid #edf1f5;flex-shrink:0;align-items:center;gap:9px;min-height:52px;padding:7px 10px;display:flex}.exam-ket-role-avatar{background:#eef3f8;border-radius:50%;flex-shrink:0;width:38px;height:38px}.exam-ket-role-title{flex-direction:column;gap:1px;min-width:0;display:flex}.exam-ket-role-title strong{color:#1b304b;text-overflow:ellipsis;white-space:nowrap;font-size:13px;overflow:hidden}.exam-ket-role-title span{color:#8493a6;font-size:11px}.exam-ket-speaking-dot{background:#2b79c2;border-radius:50%;flex-shrink:0;width:9px;height:9px;margin-left:auto;animation:1.2s infinite pulse;box-shadow:0 0 0 5px #2b79c21f}.exam-ket-role-history{flex-direction:column;flex:1;justify-content:flex-end;gap:3px;min-height:66px;padding:6px 10px 9px;display:flex;overflow-y:auto}.exam-ket-role-empty{color:#a0adbc;text-align:center;margin:auto 0;font-size:12px}.exam-ket-line{color:#8290a1;align-items:flex-start;gap:6px;font-size:12px;line-height:1.4;display:flex}.exam-ket-line span{overflow-wrap:anywhere;flex:1;min-width:0}.exam-ket-line-latest{color:#182b43;font-size:14px;font-weight:600}.exam-ket-material{background:#fff;border:1px solid #d8e0e9;border-radius:8px;flex-shrink:0;grid-template-columns:minmax(120px,.8fr) minmax(240px,1.2fr);gap:10px;max-height:210px;padding:9px;display:grid}.exam-ket-material-image{object-fit:contain;cursor:zoom-in;width:100%;height:100%;max-height:190px}.exam-ket-options{grid-template-columns:repeat(2,minmax(0,1fr));align-content:center;gap:6px;min-width:0;display:grid}.exam-ket-option{background:#f8fafc;border:1px solid #e2e7ed;border-radius:6px;align-items:center;gap:7px;min-width:0;min-height:38px;padding:6px 8px;display:flex}.exam-ket-option>span{color:#3d5878;text-align:center;background:#e5edf6;border-radius:50%;flex-shrink:0;width:20px;height:20px;font-size:11px;font-weight:800;line-height:20px}.exam-ket-option img{object-fit:cover;border-radius:4px;flex-shrink:0;width:32px;height:32px}.exam-ket-option strong{color:#273c55;overflow-wrap:anywhere;min-width:0;font-size:12px;line-height:1.25}.exam-ket-candidates{flex:1;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;min-height:210px;display:grid}.exam-ket-feedback{color:#637286;border-top:1px solid #e4e9ef;flex-wrap:wrap;flex-shrink:0;gap:6px;min-height:30px;padding:6px 9px;font-size:12px;display:flex}.exam-ket-feedback-judge-ok{color:#297244}.exam-ket-feedback-judge-fail{color:#b34d24}.exam-ket-feedback-hint{color:#6e4696}.exam-msg{word-break:break-word;border-radius:14px;align-items:flex-start;gap:8px;max-width:85%;padding:10px 14px;font-size:14px;line-height:1.5;animation:.2s msgIn;display:flex}@keyframes msgIn{0%{opacity:0;transform:translateY(6px)}}.exam-avatar{background:#f0f4fa;border-radius:50%;flex-shrink:0;width:32px;height:32px}.exam-msg-body{flex:1;align-items:flex-start;gap:8px;min-width:0;display:flex}.exam-msg-text{flex:1}.exam-replay-btn{appearance:none;white-space:nowrap;cursor:pointer;opacity:.6;background:0 0;border:1px solid;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;gap:4px;min-width:24px;height:24px;padding:0 6px;transition:opacity .15s;display:inline-flex}.exam-replay-btn:hover{opacity:1}.exam-replay-btn-active{color:#1d4ed8;opacity:1;background:#dbeafe;border-color:#60a5fa}.exam-replay-btn:disabled{opacity:.3;cursor:not-allowed}.exam-replay-btn span{font-size:10px;line-height:1}.exam-msg-examiner{color:#1a4b8c;background:#e8f0fe;border-bottom-left-radius:4px;align-self:flex-start}.exam-msg-student{color:#1e6e34;background:#e6f4ea;border-bottom-right-radius:4px;flex-direction:row-reverse;align-self:flex-end}.exam-msg-partner{color:#8a5a00;background:#fff4e0;border:1px dashed #f0c47a;border-bottom-left-radius:4px;align-self:flex-start}.exam-msg-sender{opacity:.7;margin-bottom:2px;font-size:11px;font-weight:600;display:block}.exam-msg-judge-ok{color:#3d7c0f;background:#f0f9e8;align-self:flex-start}.exam-msg-judge-fail{color:#c2410c;background:#fff7ed;align-self:flex-start}.exam-msg-hint{color:#6b21a8;background:#f3eeff;align-self:flex-start}.exam-msg-system{color:#64748b;text-align:center;background:#f1f5f9;align-self:center;font-size:13px}.exam-input-bar{padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:#fff;border-top:1px solid #e8eef6;flex-shrink:0;align-items:center;gap:8px;display:flex}.exam-input-field{color:#162c4e;background:#fafcff;border:1.5px solid #dce6f4;border-radius:12px;outline:none;flex:1;height:42px;padding:0 14px;font-size:14px;transition:border-color .15s}.exam-input-field::placeholder{color:#a4b5cc}.exam-input-field:focus{border-color:#6aa3e8}.exam-mic-btn{appearance:none;color:#1565c0;cursor:pointer;background:#f0f5fb;border:0;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:42px;height:42px;transition:all .15s;display:inline-flex}.exam-mic-btn:hover:not(:disabled){background:#dde8fb}.exam-mic-btn:disabled{opacity:.4;cursor:not-allowed}.exam-mic-recording{color:#dc2626;background:#fee2e2;animation:1.2s infinite pulse}@keyframes pulse{50%{opacity:.5}}.exam-send-btn{appearance:none;color:#fff;cursor:pointer;background:linear-gradient(135deg,#1358c4,#2e8bf0);border:0;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:42px;height:42px;transition:opacity .15s;display:inline-flex}.exam-send-btn:disabled{opacity:.4;cursor:not-allowed}@media (max-width:767px),(max-width:1023px) and (max-height:599px){.exam-ket-room{padding:8px}.exam-ket-material{grid-template-columns:1fr;max-height:none}.exam-ket-material-image{max-height:180px}.exam-ket-candidates{grid-template-columns:1fr}.exam-ket-role{min-height:150px}}@media (min-width:768px) and (min-height:600px),(min-width:1024px) and (min-height:500px){.exam-body{flex-direction:row}.exam-left{border-bottom:0;border-right:1px solid #e8eef6;flex-shrink:0;width:320px;max-height:none;overflow-y:auto}.exam-settings-toggle{display:none}.exam-settings,.exam-left-closed .exam-settings{display:grid}.exam-right{flex:1}.exam-msg{max-width:70%}}@media (min-width:1024px) and (min-height:500px){.exam-left{width:360px}}@media (min-width:768px){.page-login{padding:32px}.auth-shell{grid-template-columns:1fr minmax(360px,440px);min-height:600px}.auth-brand{justify-content:flex-end;padding:48px 40px}.auth-card{padding:36px 32px}.auth-card-header h2{font-size:26px}}.exam-avatar-container{background:linear-gradient(#f0f6ff 0%,#e8f0fe 100%);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:16px;padding:24px;display:flex;overflow:hidden}.exam-avatar-area{flex-direction:column;align-items:center;gap:16px;display:flex}.exam-avatar-circle{background:#fff;border-radius:50%;justify-content:center;align-items:center;width:180px;height:180px;transition:box-shadow .3s,transform .3s;display:flex;position:relative;box-shadow:0 4px 24px #3b82f61f}.exam-avatar-circle:before{content:"";border:3px solid #0000;border-radius:50%;transition:border-color .3s;position:absolute;inset:-6px}.exam-avatar-talking{animation:1s ease-in-out infinite avatar-pulse;box-shadow:0 4px 32px #3b82f640}.exam-avatar-talking:before{border-color:#3b82f6;animation:1.2s ease-in-out infinite avatar-ring}.exam-avatar-listening{animation:2s ease-in-out infinite avatar-breathe;box-shadow:0 4px 32px #22c55e40}.exam-avatar-listening:before{border-color:#22c55e}@keyframes avatar-pulse{0%,to{transform:scale(1)}50%{transform:scale(1.04)}}@keyframes avatar-ring{0%,to{opacity:1}50%{opacity:.4}}@keyframes avatar-breathe{0%,to{transform:scale(1)}50%{transform:scale(1.02)}}.exam-avatar-lottie{width:140px;height:140px}.exam-avatar-label{color:#475569;text-align:center;min-height:1.4em;font-size:15px;font-weight:500}.exam-avatar-progress{color:#94a3b8;text-align:center;font-size:13px}.exam-css-avatar{width:140px;height:140px;position:relative}.exam-css-face{flex-direction:column;justify-content:center;align-items:center;gap:16px;width:100%;height:100%;display:flex}.exam-css-eyes{gap:28px;display:flex}.exam-css-eye{background:#334155;border-radius:50%;width:16px;height:16px;position:relative}.exam-css-eye:after{content:"";background:#fff;border-radius:50%;width:6px;height:6px;position:absolute;top:2px;left:4px}.exam-css-avatar-listening .exam-css-eye{animation:3s ease-in-out infinite eye-blink}@keyframes eye-blink{0%,42%,48%,to{transform:scaleY(1)}45%{transform:scaleY(.1)}}.exam-css-mouth{background:#f87171;border-radius:0 0 16px 16px;width:32px;height:16px;transition:all .3s}.exam-css-mouth-idle{background:#f87171;border-radius:12px;width:24px;height:8px}.exam-css-mouth-talking{animation:.4s ease-in-out infinite alternate mouth-talk}.exam-css-mouth-listening{background:#f87171;border-radius:50%;width:20px;height:20px}@keyframes mouth-talk{0%{border-radius:0 0 14px 14px;width:28px;height:8px}to{border-radius:0 0 16px 16px;width:32px;height:20px}}.exam-image-clickable{cursor:zoom-in;transition:transform .15s}.exam-image-clickable:hover{transform:scale(1.02)}.exam-image-zoom{z-index:9999;cursor:zoom-out;background:#000000e0;justify-content:center;align-items:center;padding:24px;animation:.15s ease-out exam-zoom-fade;display:flex;position:fixed;inset:0}@keyframes exam-zoom-fade{0%{opacity:0}to{opacity:1}}.exam-image-zoom-img{object-fit:contain;border-radius:8px;max-width:100%;max-height:100%;box-shadow:0 12px 48px #00000080}.exam-image-zoom-close{color:#fff;cursor:pointer;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#ffffff26;border:none;border-radius:50%;justify-content:center;align-items:center;width:44px;height:44px;font-size:20px;transition:background .15s;display:flex;position:absolute;top:20px;right:20px}.exam-image-zoom-close:hover{background:#ffffff40}.syn-shell{color:#10233f;background:linear-gradient(#eef4ff 0%,#f8fbff 42%,#fff 100%);min-height:100dvh;padding-bottom:34px}.syn-header{z-index:40;-webkit-backdrop-filter:blur(12px)saturate(180%);backdrop-filter:blur(12px)saturate(180%);background:#ffffffe0;border-bottom:1px solid #0000000f;justify-content:space-between;align-items:center;height:56px;padding:0 16px;display:flex;position:sticky;top:0}.syn-header h1{margin:0;font-size:17px;font-weight:750}.syn-back,.syn-reset{appearance:none;color:#1565c0;cursor:pointer;background:0 0;border:0;align-items:center;gap:4px;min-width:72px;font-weight:700;display:inline-flex}.syn-reset{color:#5a7194;justify-content:flex-end}.syn-summary{grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;max-width:860px;margin:18px auto 0;padding:0 18px;display:grid}.syn-summary div{background:#fff;border:1px solid #e2eaf6;border-radius:8px;min-width:0;min-height:74px;padding:14px;box-shadow:0 10px 28px -24px #0f2b5261}.syn-summary span{color:#6b7d99;font-size:12px;font-weight:700;display:block}.syn-summary strong{color:#0f2b52;margin-top:6px;font-size:22px;line-height:1.1;display:block}.syn-tabs{grid-template-columns:repeat(4,1fr);gap:8px;max-width:860px;height:46px;margin:14px auto 0;padding:0 18px;display:grid}.syn-tabs button{color:#5a7194;background:#fff;border:1px solid #d7e1f0;border-radius:8px;min-width:0;font-weight:800}.syn-tabs button.active{color:#fff;background:#1565c0;border-color:#1565c0}.syn-card,.syn-empty,.syn-complete,.syn-error{max-width:760px;margin:18px auto 0}.syn-card{background:#fff;border:1px solid #e2eaf6;border-radius:8px;padding:22px;box-shadow:0 18px 36px -30px #0f2b5273}.syn-card-meta{color:#718096;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;font-weight:700;display:flex}.syn-mode{color:#fff;background:#1565c0;border-radius:999px;align-items:center;height:24px;padding:0 9px;display:inline-flex}.syn-mode-antonym{background:#b45309}.syn-instruction{color:#1565c0;margin:24px 0 10px;font-size:14px;font-weight:800}.syn-question-line{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.syn-question-line h2{color:#10233f;letter-spacing:0;overflow-wrap:anywhere;flex:1;min-width:0;margin:0;font-size:clamp(28px,5vw,42px);line-height:1.18}.syn-audio-actions{flex:none;align-items:center;gap:6px;display:inline-flex}.syn-audio-btn{color:#1565c0;cursor:pointer;background:#fff;border:1px solid #d7e1f0;border-radius:999px;justify-content:center;align-items:center;gap:3px;min-width:38px;height:30px;font-size:12px;font-weight:850;display:inline-flex}.syn-audio-btn:disabled{opacity:.65;cursor:default}.syn-cn{color:#5a7194;margin:10px 0 0;font-size:18px;font-weight:700}.syn-reveal-cn{color:#1565c0;cursor:pointer;background:#f8fbff;border:1px solid #d7e1f0;border-radius:8px;min-height:34px;margin-top:12px;padding:0 12px;font-size:13px;font-weight:800}.syn-options{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:24px;display:grid}.syn-option{color:#10233f;background:#fff;border:1.5px solid #dce6f4;border-radius:8px;grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:10px;min-height:78px;padding:14px 16px;display:grid}.syn-option-pick{min-width:0;color:inherit;text-align:left;cursor:pointer;background:0 0;border:0;padding:0}.syn-option-pick:disabled{cursor:default}.syn-option-pick>span,.syn-option small,.syn-option em{display:block}.syn-option-pick>span{overflow-wrap:anywhere;font-size:18px;font-weight:800;line-height:1.25}.syn-option small{color:#6b7d99;grid-column:1/-1;margin-top:6px;font-size:13px;font-weight:650}.syn-option em{color:#1565c0;background:#eef4ff;border-radius:999px;grid-column:1/-1;width:fit-content;margin-top:9px;padding:4px 8px;font-size:12px;font-style:normal;font-weight:800}.syn-option.correct{background:#effbf6;border-color:#149467}.syn-option.wrong{background:#fff3f2;border-color:#d24b43}.syn-feedback{background:#f8fafc;border-left:4px solid #149467;margin-top:18px;padding:16px}.syn-feedback.wrong{border-left-color:#d24b43}.syn-feedback>div{align-items:center;gap:8px;display:flex}.syn-feedback p{color:#475569;margin:10px 0 0;font-weight:650;line-height:1.55}.syn-feedback button,.syn-complete button{color:#fff;background:#1565c0;border:0;border-radius:8px;justify-content:center;align-items:center;gap:7px;min-height:42px;margin-top:14px;padding:0 16px;font-weight:800;display:inline-flex}.syn-empty,.syn-complete{color:#5a7194;text-align:center;background:#fff;border:1px solid #e2eaf6;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:10px;min-height:220px;display:flex}.syn-complete h2{color:#10233f;margin:0;font-size:24px}.syn-complete p{margin:0}.syn-error{color:#b91c1c;background:#fff1f2;border:1px solid #fecaca;border-radius:8px;padding:12px 14px;font-weight:700}@media (max-width:640px){.syn-summary{grid-template-columns:repeat(2,minmax(0,1fr))}.syn-options{grid-template-columns:1fr}.syn-card,.syn-empty,.syn-complete,.syn-error{margin-left:18px;margin-right:18px}}.vocab-shell{background:linear-gradient(#eef4ff 0%,#f7faff 40%,#fff 100%);min-height:100dvh;padding-bottom:32px}.vocab-header{z-index:40;-webkit-backdrop-filter:blur(12px)saturate(180%);backdrop-filter:blur(12px)saturate(180%);background:#ffffffd9;border-bottom:1px solid #0000000f;justify-content:space-between;align-items:center;height:56px;padding:0 16px;display:flex;position:sticky;top:0}.vocab-back{appearance:none;color:#1565c0;cursor:pointer;background:0 0;border:0;align-items:center;gap:4px;min-width:72px;font-size:14px;font-weight:600;display:inline-flex}.vocab-header-title{color:#0f2b52;margin:0;font-size:17px;font-weight:700}.vocab-refresh{appearance:none;color:#5a7194;cursor:pointer;background:0 0;border:0;border-radius:8px;justify-content:flex-end;align-items:center;min-width:72px;padding:8px;display:inline-flex}.vocab-refresh:disabled{opacity:.5;cursor:not-allowed}.vocab-today-card{color:#fff;background:linear-gradient(135deg,#2563eb 0%,#3b82f6 50%,#6366f1 100%);border-radius:20px;margin:20px 20px 0;padding:24px;box-shadow:0 10px 30px -10px #2563eb80}.vocab-today-head{justify-content:space-between;align-items:flex-end;gap:16px;display:flex}.vocab-today-label{opacity:.85;margin:0;font-size:13px;font-weight:600}.vocab-today-count{align-items:baseline;gap:6px;margin:4px 0 0;font-size:40px;font-weight:800;line-height:1;display:inline-flex}.vocab-today-unit{opacity:.85;font-size:15px;font-weight:500}.vocab-today-start{appearance:none;color:#1d4ed8;cursor:pointer;background:#fff;border:0;border-radius:999px;padding:10px 20px;font-size:14px;font-weight:700;transition:transform .15s,opacity .15s}.vocab-today-start:disabled{opacity:.55;cursor:not-allowed}.vocab-today-start:not(:disabled):active{transform:scale(.97)}.vocab-today-error{color:#fef3c7;margin:12px 0 0;font-size:13px}.vocab-today-hint{color:#e0e7ff;margin:12px 0 0;font-size:13px}.vocab-today-breakdown{opacity:.85;margin:6px 0 0;font-size:12px;font-weight:500}.vocab-today-actions{flex-direction:column;align-items:flex-end;gap:10px;display:flex}.vocab-today-enroll{appearance:none;color:#fff;cursor:pointer;background:#ffffff1f;border:1.5px solid #ffffffb3;border-radius:999px;align-items:center;gap:6px;padding:8px 14px;font-size:13px;font-weight:600;transition:transform .15s,background .15s;display:inline-flex}.vocab-today-enroll:disabled{opacity:.55;cursor:not-allowed}.vocab-today-enroll:not(:disabled):hover{background:#ffffff38}.vocab-today-enroll:not(:disabled):active{transform:scale(.97)}.vocab-badge{letter-spacing:.3px;border-radius:999px;align-items:center;gap:4px;padding:4px 10px;font-size:11px;font-weight:700;display:inline-flex}.vocab-badge-new{color:#047857;background:#ecfdf5;border:1px solid #a7f3d0}.vocab-badge-learning{color:#1d4ed8;background:#eff6ff;border:1px solid #bfdbfe}.vocab-badge-mastered{color:#a16207;background:#fefce8;border:1px solid #fde68a}.vocab-highlight{color:#dc2626;border-bottom:1.5px solid #fca5a5;padding-bottom:1px;font-weight:700}.vocab-theme-intro{color:#5a7194;margin:16px 20px 0;font-size:13px;line-height:1.55}.vocab-theme-hint{color:#c2410c;background:#fff7ed;border:1px solid #fed7aa;border-radius:12px;margin:12px 20px 0;padding:10px 14px;font-size:13px;font-weight:600}.vocab-theme-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:18px 20px 28px;display:grid}@media (min-width:720px){.vocab-theme-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}.vocab-theme-tile{appearance:none;text-align:left;cursor:pointer;color:#fff;border:0;border-radius:16px;flex-direction:column;justify-content:space-between;gap:8px;min-height:96px;padding:18px 14px;transition:transform .12s,box-shadow .12s;display:flex;position:relative;box-shadow:0 8px 20px -10px #0f172a59}.vocab-theme-tile:active{transform:scale(.97)}.vocab-theme-tile:disabled{opacity:.7;cursor:not-allowed}.vocab-theme-tile-1{background:linear-gradient(135deg,#6366f1,#4338ca)}.vocab-theme-tile-2{background:linear-gradient(135deg,#10b981,#047857)}.vocab-theme-tile-3{background:linear-gradient(135deg,#f59e0b,#b45309)}.vocab-theme-tile-4{background:linear-gradient(135deg,#ec4899,#be185d)}.vocab-theme-tile-5{background:linear-gradient(135deg,#06b6d4,#0e7490)}.vocab-theme-tile-6{background:linear-gradient(135deg,#8b5cf6,#6d28d9)}.vocab-theme-cn{-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:15px;font-weight:700;line-height:1.3;display:-webkit-box;overflow:hidden}.vocab-theme-en{opacity:.85;-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:11px;font-weight:500;line-height:1.3;display:-webkit-box;overflow:hidden}.vocab-theme-overlay{color:#fff;background:#0f172a59;border-radius:16px;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.vocab-entries{padding:24px 20px 0}.vocab-section-title{color:#0f2b52;margin:0 0 12px;font-size:14px;font-weight:700}.vocab-entry-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.vocab-entry-card{text-align:left;cursor:pointer;appearance:none;background:#fff;border:1.5px solid #e2eaf6;border-radius:16px;flex-direction:column;gap:10px;padding:16px;transition:transform .15s,box-shadow .15s,border-color .15s;display:flex;position:relative}.vocab-entry-enabled:hover{border-color:#3b82f6;transform:translateY(-1px);box-shadow:0 6px 20px -8px #2563eb59}.vocab-entry-disabled{opacity:.55;cursor:not-allowed}.vocab-entry-icon{color:#5a7194;background:#eef3fb;border-radius:10px;justify-content:center;align-items:center;width:36px;height:36px;display:inline-flex}.vocab-entry-icon-active{color:#1d4ed8;background:linear-gradient(135deg,#dbeafe,#e0e7ff)}.vocab-entry-text{flex-direction:column;gap:2px;display:flex}.vocab-entry-label{color:#0f2b52;font-size:15px;font-weight:700}.vocab-entry-sub{color:#5a7194;font-size:12px}.vocab-entry-badge{color:#5a7194;background:#e2eaf6;border-radius:999px;padding:2px 8px;font-size:10px;font-weight:600;position:absolute;top:10px;right:10px}.wb-intro{color:#5a7194;margin:4px 16px 12px;font-size:13px;line-height:1.6}.wb-search{margin:0 16px 4px;position:relative}.wb-search-box{background:#fff;border:1px solid #d7e1f0;border-radius:14px;align-items:center;gap:8px;height:48px;padding:0 12px;display:flex;box-shadow:0 2px 8px #506ea00f}.wb-search-icon{color:#93a6c4;flex-shrink:0}.wb-search-input{color:#1f2d45;background:0 0;border:none;outline:none;flex:1;font-size:16px}.wb-search-spin{color:#93a6c4;flex-shrink:0}.wb-suggest{z-index:20;background:#fff;border:1px solid #e2eaf6;border-radius:14px;position:absolute;top:54px;left:0;right:0;overflow:hidden;box-shadow:0 8px 24px #3c5a8c24}.wb-suggest-row{text-align:left;cursor:pointer;background:0 0;border:none;border-bottom:1px solid #f0f4fa;align-items:center;gap:10px;width:100%;padding:12px 14px;display:flex}.wb-suggest-row:last-child{border-bottom:none}.wb-suggest-row:not(:disabled):active{background:#f3f7ff}.wb-suggest-row:disabled{opacity:.65;cursor:default}.wb-suggest-word{color:#1f2d45;font-size:16px;font-weight:600}.wb-suggest-pos{color:#93a6c4;font-size:12px}.wb-suggest-action{color:#3b6fe0;align-items:center;gap:4px;margin-left:auto;font-size:13px;font-weight:600;display:inline-flex}.wb-suggest-empty{color:#93a6c4;padding:14px;font-size:13px}.wb-hint{color:#3b6fe0;margin:8px 16px 0;font-size:13px}.wb-list-section{margin:16px 16px 32px}.wb-list-head{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.wb-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.wb-item{background:#fff;border:1px solid #eef2f8;border-radius:12px;align-items:center;gap:10px;padding:12px 14px;display:flex}.wb-item-main{align-items:baseline;gap:8px;min-width:0;display:flex}.wb-item-word{color:#1f2d45;font-size:16px;font-weight:600}.wb-item-pos{color:#93a6c4;font-size:12px}.wb-badge{white-space:nowrap;border-radius:999px;margin-left:auto;padding:3px 9px;font-size:11px;font-weight:600}.wb-badge-pending{color:#6b7d99;background:#eef1f6}.wb-badge-new{color:#2f6bd8;background:#e6f0ff}.wb-badge-learning{color:#b06f00;background:#fff2d9}.wb-badge-done{color:#1c8b4b;background:#dcf5e5}.wb-item-del{color:#b0402f;cursor:pointer;background:#f7f9fc;border:none;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;display:inline-flex}.wb-item-del:not(:disabled):active{background:#fbe9e6}.wb-item-del:disabled{opacity:.5;cursor:default}.vocab-review-shell{background:linear-gradient(#eef4ff 0%,#f7faff 40%,#fff 100%);flex-direction:column;min-height:100dvh;display:flex}.vocab-review-header{z-index:40;-webkit-backdrop-filter:blur(12px)saturate(180%);backdrop-filter:blur(12px)saturate(180%);background:#ffffffd9;border-bottom:1px solid #0000000f;justify-content:space-between;align-items:center;height:56px;padding:0 16px;display:flex;position:sticky;top:0}.vocab-review-progress{color:#0f2b52;align-items:center;gap:10px;font-size:13px;display:inline-flex}.vocab-review-pill{color:#1d4ed8;background:#eef3fb;border-radius:999px;padding:4px 10px;font-size:12px;font-weight:700}.vocab-review-stat{align-items:center;gap:2px;font-size:13px;font-weight:700;display:inline-flex}.vocab-review-empty{color:#5a7194;text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:16px;padding:40px 20px;font-size:14px;display:flex}.vocab-review-error{color:#b91c1c}.vocab-review-retry{appearance:none;color:#fff;cursor:pointer;background:#2563eb;border:0;border-radius:999px;padding:10px 22px;font-size:14px;font-weight:700}.vocab-flashcard{perspective:1200px;cursor:pointer;-webkit-user-select:none;user-select:none;height:360px;margin:24px 20px}.vocab-flashcard-inner{width:100%;height:100%;transform-style:preserve-3d;transition:transform .55s cubic-bezier(.22,.61,.36,1);position:relative}.vocab-flashcard-flipped .vocab-flashcard-inner{transform:rotateY(180deg)}.vocab-flashcard-face{backface-visibility:hidden;text-align:center;border-radius:24px;flex-direction:column;justify-content:center;align-items:center;padding:28px;display:flex;position:absolute;inset:0;box-shadow:0 20px 40px -20px #0f2b5240}.vocab-flashcard-front{color:#0f2b52;background:linear-gradient(160deg,#fff,#f3f7ff);gap:14px}.vocab-flashcard-back{color:#0f2b52;text-align:left;background:linear-gradient(160deg,#eef4ff,#fff);align-items:stretch;gap:12px;overflow-y:auto;transform:rotateY(180deg)}.vocab-flashcard-hint{color:#93a7c6;letter-spacing:.08em;text-transform:uppercase;font-size:11px}.vocab-flashcard-word{letter-spacing:-.02em;margin:0;font-size:44px;font-weight:800}.vocab-flashcard-ipa{color:#5a7194;margin:0;font-family:Segoe UI,Noto Sans,serif;font-size:16px}.vocab-flashcard-speakers{gap:10px;margin-top:4px;display:flex}.vocab-flashcard-speaker{appearance:none;color:#fff;letter-spacing:.04em;cursor:pointer;background:#1d4ed8;border:0;border-radius:999px;justify-content:center;align-items:center;gap:6px;height:40px;padding:0 16px;font-size:13px;font-weight:700;display:inline-flex;box-shadow:0 10px 24px -8px #1d4ed88c}.vocab-flashcard-speaker-us{background:#0f766e;box-shadow:0 10px 24px -8px #0f766e8c}.vocab-flashcard-speaker:disabled{opacity:.65;cursor:not-allowed}.vocab-flashcard-due{color:#93a7c6;font-size:11px;font-weight:600}.vocab-flashcard-def-cn{color:#0f2b52;margin:0;font-size:18px;font-weight:700}.vocab-flashcard-def-en{color:#5a7194;margin:0;font-size:13px;line-height:1.5}.vocab-flashcard-examples{flex-direction:column;gap:10px;margin:8px 0 0;padding:0;list-style:none;display:flex}.vocab-flashcard-examples li{background:#ffffffbf;border:1px solid #1d4ed814;border-radius:12px;padding:10px 12px}.vocab-flashcard-example-en{color:#0f2b52;margin:0;font-size:14px;font-weight:600}.vocab-flashcard-example-cn{color:#5a7194;margin:4px 0 0;font-size:12px}.vocab-flashcard-example-row{align-items:flex-start;gap:10px;display:flex}.vocab-flashcard-example-text{flex:1;min-width:0}.vocab-flashcard-example-speaker{appearance:none;color:#1d4ed8;cursor:pointer;background:#1d4ed81a;border:0;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;margin-top:2px;display:inline-flex}.vocab-flashcard-example-speaker:disabled{opacity:.55;cursor:not-allowed}.vocab-flashcard-loading{color:#5a7194;justify-content:center;align-items:center;gap:8px;font-size:13px;display:inline-flex}.vocab-review-toast{text-align:center;color:#1d4ed8;margin:0 20px 12px;font-size:13px;font-weight:600}.vocab-review-actions{grid-template-columns:1fr 1fr;gap:12px;margin:auto 20px 24px;padding-top:8px;display:grid}.vocab-review-btn{appearance:none;cursor:pointer;border:0;border-radius:16px;justify-content:center;align-items:center;gap:8px;padding:16px;font-size:16px;font-weight:700;transition:transform .15s,opacity .15s;display:inline-flex}.vocab-review-btn:disabled{opacity:.6;cursor:not-allowed}.vocab-review-btn:not(:disabled):active{transform:scale(.97)}.vocab-review-btn-forgot{color:#b91c1c;background:#fee2e2}.vocab-review-btn-got{color:#fff;background:linear-gradient(135deg,#2563eb,#3b82f6);box-shadow:0 10px 24px -8px #2563eb73}.reading-shell{color:#10233f;background:#f6f8fb;flex-direction:column;gap:16px;min-height:100vh;padding:18px;display:flex}.reading-header{justify-content:space-between;align-items:center;gap:14px;width:100%;max-width:980px;margin:0 auto;display:flex}.reading-header h1{margin:0;font-size:28px;line-height:1.1}.reading-header p{color:#64748b;margin:4px 0 0;font-size:14px}.reading-header-actions{align-items:center;gap:8px;display:flex}.reading-icon-btn,.reading-play{appearance:none;color:#17437c;cursor:pointer;background:#fff;border:1px solid #0f233f1a;justify-content:center;align-items:center;display:inline-flex;box-shadow:0 10px 24px -18px #0f233f59}.reading-icon-btn{border-radius:12px;width:42px;height:42px}.reading-play{color:#fff;background:#1d4ed8;border-color:#1d4ed8;border-radius:50%;flex-shrink:0;width:58px;height:58px}.reading-accent-actions{flex-direction:column;flex-shrink:0;gap:8px;display:flex}.reading-accent-play{appearance:none;color:#fff;cursor:pointer;background:#1d4ed8;border:0;border-radius:999px;justify-content:center;align-items:center;gap:6px;min-width:72px;height:38px;padding:0 12px;font-size:13px;font-weight:800;display:inline-flex;box-shadow:0 10px 22px -12px #1d4ed88c}.reading-accent-play:nth-child(2){background:#0f766e;box-shadow:0 10px 22px -12px #0f766e8c}.reading-settings,.reading-filters,.reading-tags,.reading-list,.reading-state{width:100%;max-width:980px;margin:0 auto}.reading-settings{background:#fff;border:1px solid #0f233f14;border-radius:16px;padding:14px}.reading-settings-head{justify-content:space-between;align-items:center;margin-bottom:10px;display:flex}.reading-settings-head button{appearance:none;color:#b91c1c;background:#fee2e2;border:0;border-radius:999px;padding:7px 12px;font-weight:700}.reading-filters,.reading-tags{gap:8px;padding-bottom:2px;display:flex;overflow-x:auto}.reading-filters button,.reading-tags button{appearance:none;color:#475569;white-space:nowrap;cursor:pointer;background:#fff;border:1px solid #0f233f1a;border-radius:999px;padding:9px 14px;font-size:14px;font-weight:700}.reading-filters button.active,.reading-tags button.active{color:#fff;background:#0f766e;border-color:#0f766e}.reading-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.reading-card{background:#fff;border:1px solid #0f233f14;border-radius:8px;grid-template-columns:1fr auto;gap:14px;padding:18px;display:grid;box-shadow:0 14px 34px -26px #0f233f73}.reading-card-main{min-width:0}.reading-type{color:#0369a1;background:#e0f2fe;border-radius:999px;align-items:center;height:24px;padding:0 10px;font-size:12px;font-weight:800;display:inline-flex}.reading-card h2{overflow-wrap:anywhere;margin:12px 0 6px;font-size:30px;line-height:1.18}.reading-card p{color:#475569;margin:0;font-size:16px;font-weight:650}.reading-card small{color:#718096;margin-top:8px;line-height:1.45;display:block}.reading-forms,.reading-examples,.reading-self-check,.reading-toggle-detail{grid-column:1/-1}.reading-toggle-detail{appearance:none;color:#17437c;cursor:pointer;background:#fff;border:1px solid #0f233f1a;border-radius:999px;justify-content:center;justify-self:start;align-items:center;gap:7px;min-height:36px;padding:0 13px;font-size:13px;font-weight:800;display:inline-flex}.reading-self-check{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.reading-self-check button{appearance:none;color:#166534;cursor:pointer;background:#dcfce7;border:0;border-radius:999px;justify-content:center;align-items:center;gap:6px;min-height:34px;padding:0 12px;font-size:13px;font-weight:800;display:inline-flex}.reading-self-check button.wrong{color:#991b1b;background:#fee2e2}.reading-self-check button:disabled{opacity:.7;cursor:not-allowed}.reading-self-check span{color:#475569;background:#f8fafc;border-radius:999px;align-items:center;min-height:30px;padding:0 10px;font-size:13px;font-weight:800;display:inline-flex}.reading-forms{flex-wrap:wrap;gap:8px;padding-top:4px;display:flex}.reading-forms span{background:#f8fafc;border:1px solid #0f233f14;border-radius:999px;align-items:center;gap:6px;padding:7px 10px;font-size:14px;font-weight:700;display:inline-flex}.reading-forms b{color:#dc2626}.reading-examples{flex-direction:column;gap:8px;display:flex}.reading-examples button{appearance:none;color:#10233f;text-align:left;cursor:pointer;background:#f8fafc;border:1px solid #0f233f14;border-radius:8px;align-items:flex-start;gap:10px;padding:10px 12px;display:flex}.reading-examples strong,.reading-examples em,.reading-example-form{display:block}.reading-example-form{color:#dc2626;margin-bottom:4px;font-size:13px;font-style:normal;font-weight:800}.reading-example-form b{margin-right:6px}.reading-examples strong{font-size:15px}.reading-examples em{color:#64748b;margin-top:3px;font-size:13px;font-style:normal}.reading-state{color:#64748b;background:#fff;border:1px solid #0f233f14;border-radius:8px;justify-content:center;align-items:center;gap:10px;min-height:220px;font-weight:700;display:flex}.reading-load-more{color:#64748b;justify-content:center;align-items:center;gap:12px;width:100%;max-width:980px;margin:0 auto 18px;font-size:14px;font-weight:700;display:flex}.reading-load-more button{appearance:none;color:#fff;cursor:pointer;background:#17437c;border:0;border-radius:999px;justify-content:center;align-items:center;gap:8px;min-height:40px;padding:0 18px;font-weight:800;display:inline-flex}.reading-load-more button:disabled{opacity:.65;cursor:not-allowed}.reading-error{color:#b91c1c}.reading-error button{appearance:none;color:#b91c1c;background:#fee2e2;border:0;border-radius:999px;padding:8px 14px;font-weight:800}@media (max-width:760px){.reading-shell{padding:14px}.reading-list{grid-template-columns:1fr}.reading-card h2{font-size:26px}}.personal-shell{color:#172033;background:#f5f7fa;min-height:100vh;padding:18px clamp(14px,3vw,32px) 40px}.personal-header,.personal-progress,.personal-question,.personal-panel,.personal-pager,.personal-state{width:min(920px,100%);margin-left:auto;margin-right:auto}.personal-header{grid-template-columns:44px 1fr auto;align-items:center;gap:12px;min-height:62px;display:grid}.personal-header>button,.personal-question-row>button,.personal-reference-list article>button,.personal-answer-block>button{appearance:none;color:#17437c;cursor:pointer;background:#fff;border:1px solid #0f233f1a;border-radius:8px;flex:none;justify-content:center;align-items:center;width:42px;height:42px;display:inline-flex}.personal-header svg,.personal-question-row svg,.personal-reference-list svg,.personal-answer-block svg{width:19px;height:19px}.personal-header h1{margin:0;font-size:20px;font-weight:850}.personal-header p{color:#64748b;margin:2px 0 0;font-size:13px}.personal-header>span{color:#475569;font-variant-numeric:tabular-nums;font-size:13px;font-weight:800}.personal-progress{background:#dfe6ee;height:5px;margin-bottom:18px;overflow:hidden}.personal-progress span{background:#1d6f5f;height:100%;transition:width .2s;display:block}.personal-question,.personal-panel,.personal-state{background:#fff;border:1px solid #0f233f17;border-radius:8px;box-shadow:0 8px 24px #0f233f0d}.personal-question{border-top:4px solid #17437c;padding:clamp(18px,3vw,28px)}.personal-kicker,.personal-panel-head>div{color:#1d6f5f;text-transform:uppercase;align-items:center;gap:8px;font-size:12px;font-weight:900;display:flex}.personal-kicker svg,.personal-panel-head svg,.personal-meta svg,.personal-targets svg,.personal-actions svg,.personal-primary svg,.personal-secondary svg,.personal-pager svg{width:17px;height:17px}.personal-question-row{justify-content:space-between;align-items:flex-start;gap:18px;margin-top:14px;display:flex}.personal-question h2{letter-spacing:0;max-width:720px;margin:0;font-size:clamp(24px,4vw,34px);line-height:1.25}.personal-question p{color:#64748b;margin:9px 0 0;font-size:15px}.personal-meta{flex-wrap:wrap;align-items:center;gap:8px;margin-top:18px;display:flex}.personal-meta>span{color:#17584c;background:#edf7f3;border-radius:999px;align-items:center;min-height:30px;padding:0 10px;font-size:12px;font-weight:800;display:inline-flex}.personal-meta>button,.personal-panel-head>button,.personal-stop-audio{appearance:none;color:#17437c;cursor:pointer;background:#eef3f8;border:0;border-radius:999px;align-items:center;gap:6px;min-height:32px;padding:0 11px;font-size:12px;font-weight:800;display:inline-flex}.personal-panel{margin-top:16px;padding:clamp(18px,3vw,28px)}.personal-panel-head{justify-content:space-between;align-items:center;gap:14px;margin-bottom:16px;display:flex}.personal-panel-head>div{color:#172033;text-transform:none;font-size:15px}.personal-reference-list{gap:9px;display:grid}.personal-reference-list article{background:#f8fafc;border:1px solid #0f233f12;border-radius:8px;grid-template-columns:32px 1fr 42px;align-items:center;gap:12px;min-width:0;padding:13px;display:grid}.personal-reference-list article>span,.personal-writing-lines label>span{color:#fff;background:#17437c;border-radius:50%;justify-content:center;align-items:center;width:30px;height:30px;font-size:13px;font-weight:900;display:inline-flex}.personal-reference-list strong{overflow-wrap:anywhere;font-size:16px;line-height:1.5;display:block}.personal-reference-list p{color:#64748b;margin:3px 0 0;font-size:13px}.personal-targets{background:#fff8e8;border-left:3px solid #d99b2b;flex-wrap:wrap;gap:8px;margin-top:14px;padding:14px;display:flex}.personal-targets strong{width:100%;font-size:13px}.personal-targets span{color:#6b4d16;align-items:center;gap:5px;font-size:13px;display:inline-flex}.personal-primary,.personal-secondary,.personal-pager button{appearance:none;cursor:pointer;border:0;border-radius:8px;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:0 17px;font-size:14px;font-weight:850;display:inline-flex}.personal-primary{color:#fff;background:#17437c;margin-top:18px}.personal-panel>.personal-primary{width:100%}.personal-secondary{color:#17437c;background:#eef3f8}.personal-primary:disabled,.personal-secondary:disabled,.personal-pager button:disabled{opacity:.45;cursor:not-allowed}.personal-record{appearance:none;color:#17437c;cursor:pointer;background:#f7fafc;border:2px solid #cfdbe8;border-radius:8px;justify-content:center;align-items:center;gap:12px;width:100%;min-height:88px;display:flex}.personal-record svg{width:28px;height:28px}.personal-record.recording{color:#b91c1c;background:#fff1f2;border-color:#dc2626}.personal-input{margin-top:14px;display:block}.personal-input>span,.personal-writing-lines+span{color:#475569;margin-bottom:6px;font-size:12px;font-weight:800;display:block}.personal-input textarea,.personal-writing-lines textarea{resize:vertical;color:#172033;width:100%;font:inherit;background:#fff;border:1px solid #cfd8e3;border-radius:8px;outline:none;padding:12px;font-size:16px;line-height:1.5}.personal-input textarea:focus,.personal-writing-lines textarea:focus{border-color:#3478b8;box-shadow:0 0 0 3px #3478b81f}.personal-writing-lines{gap:10px;display:grid}.personal-writing-lines label{grid-template-columns:34px 1fr;align-items:center;gap:10px;display:grid}.personal-word-count{color:#64748b;justify-self:end;font-size:12px;font-weight:800}.personal-actions{justify-content:space-between;gap:10px;margin-top:18px;display:flex}.personal-actions .personal-primary{margin-top:0}.personal-result{padding-top:30px;position:relative}.personal-score{text-align:center}.personal-score strong{color:#17437c;font-variant-numeric:tabular-nums;font-size:50px;line-height:1;display:block}.personal-score span{color:#64748b;font-size:12px;font-weight:800}.personal-score-breakdown{grid-template-columns:1fr 1fr;gap:10px;width:min(420px,100%);margin:18px auto;display:grid}.personal-score-breakdown div{text-align:center;background:#f4f7fa;border-radius:8px;padding:12px}.personal-score-breakdown span,.personal-score-breakdown strong{display:block}.personal-score-breakdown span{color:#64748b;font-size:12px}.personal-score-breakdown strong{margin-top:3px;font-size:16px}.personal-verdict{border-radius:8px;justify-content:center;align-items:center;gap:8px;width:min(420px,100%);min-height:42px;margin:0 auto 14px;padding:0 13px;display:flex}.personal-verdict.correct{color:#166534;background:#dcfce7}.personal-verdict.needs-work{color:#9f1239;background:#fff1f2}.personal-answer-block{background:#f8fafc;border:1px solid #0f233f14;border-radius:8px;margin-top:10px;padding:15px 62px 15px 15px;position:relative}.personal-answer-block>span{color:#1d6f5f;font-size:12px;font-weight:900}.personal-answer-block p{white-space:pre-wrap;margin:6px 0 0;font-size:17px;line-height:1.55}.personal-answer-block>button{position:absolute;top:50%;right:12px;transform:translateY(-50%)}.personal-feedback{background:#fff8e8;border-radius:8px;margin-top:12px;padding:13px}.personal-feedback p{margin:0 0 7px;font-weight:700}.personal-feedback span{color:#6b4d16;font-size:13px;display:block}.personal-feedback span:before{content:"• "}.personal-error-text,.personal-error{color:#b91c1c}.personal-error-text{background:#fef2f2;border-radius:8px;margin:12px 0 0;padding:10px;font-size:13px}.personal-pager{justify-content:space-between;margin-top:14px;display:flex}.personal-pager button{color:#475569;background:0 0}.personal-stop-audio{color:#fff;background:#172033;position:fixed;bottom:20px;right:20px;box-shadow:0 8px 24px #0f233f2e}.personal-state{color:#64748b;justify-content:center;align-items:center;gap:10px;min-height:260px;font-weight:800;display:flex}@media (max-width:620px){.personal-shell{padding:10px 10px 30px}.personal-question h2{font-size:23px}.personal-reference-list article{grid-template-columns:28px minmax(0,1fr) 38px;gap:8px;padding:10px}.personal-reference-list article>button{width:38px;height:38px}.personal-actions>button{flex:1}.personal-score-breakdown{grid-template-columns:1fr 1fr}}@media (max-width:767px){input,select,textarea{font-size:16px}.home-header-inner{height:calc(56px + env(safe-area-inset-top));padding-top:env(safe-area-inset-top);padding-right:calc(12px + env(safe-area-inset-right));padding-left:calc(12px + env(safe-area-inset-left))}.home-logo{text-overflow:ellipsis;white-space:nowrap;max-width:calc(100vw - 126px);font-size:16px;overflow:hidden}.home-icon-btn,.home-user-btn{min-width:44px;min-height:44px}.home-icon-btn{width:44px;height:44px}.home-user-btn{padding-right:9px}.home-hero{padding:12px}.home-hero-content{border-radius:18px;padding:24px 20px}.home-sections{padding:2px 12px calc(32px + env(safe-area-inset-bottom));gap:16px}.home-section{border-radius:16px;padding:16px 12px}.home-app-card{min-height:112px;padding:14px 8px}.home-sheet{right:env(safe-area-inset-right);left:env(safe-area-inset-left)}.yle-header,.exam-header,.syn-header,.vocab-header,.vocab-review-header{height:calc(56px + env(safe-area-inset-top));padding-top:env(safe-area-inset-top);padding-right:calc(10px + env(safe-area-inset-right));padding-left:calc(10px + env(safe-area-inset-left))}.yle-back{min-width:44px;min-height:44px;padding:0 8px}.expression-shell,.personal-shell{padding-top:calc(10px + env(safe-area-inset-top));padding-right:calc(10px + env(safe-area-inset-right));padding-left:calc(10px + env(safe-area-inset-left));padding-bottom:calc(30px + env(safe-area-inset-bottom))}.expression-icon-btn,.expression-round-action,.personal-header>button,.personal-question-row>button,.personal-reference-list article>button,.personal-answer-block>button{width:44px;height:44px}.personal-reference-list article{grid-template-columns:28px minmax(0,1fr) 44px}.exam-header{flex-shrink:0}.exam-left{max-height:42dvh}.exam-left-closed{max-height:none}.exam-images,.exam-images-single{max-height:30dvh}.exam-input-bar{padding-right:calc(8px + env(safe-area-inset-right));padding-left:calc(8px + env(safe-area-inset-left));gap:6px}.exam-input-field{min-width:0;height:44px}.exam-mic-btn,.exam-send-btn{width:44px;height:44px}.personal-stop-audio{right:calc(12px + env(safe-area-inset-right));bottom:calc(12px + env(safe-area-inset-bottom));min-height:44px}}@media (max-width:380px){.exam-header .yle-back span{display:none}.exam-header .yle-back{padding:0}.exam-header-title{text-overflow:ellipsis;white-space:nowrap;max-width:170px;overflow:hidden}}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-duration{syntax:"*";inherits:false}@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}@property --tw-translate-x{syntax:"*";inherits:false;initial-value:0}@property --tw-translate-y{syntax:"*";inherits:false;initial-value:0}@property --tw-translate-z{syntax:"*";inherits:false;initial-value:0}