/* WordKing learning workspace. Opt-in only: the landing page stays unchanged.
   No downloaded fonts: Georgia 400/700 for vocabulary; Microsoft YaHei /
   PingFang SC 400/600/700 for UI; system fallbacks for offline compatibility. */
.wk-ui {
  --ink:#203d49; --deep:#24677a; --muted:#637782; --line:#dfe7e9;
  --sky:#f4f6f5; --coral:#d18a64; --wk-paper:#fff; --wk-soft:#f5f8f8;
  margin:0; color:var(--ink); background:var(--sky);
  font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;
  font-size:14px; line-height:1.65; -webkit-font-smoothing:antialiased;
}
.wk-ui *, .wk-ui *::before, .wk-ui *::after {box-sizing:border-box}
.wk-ui .sr-only {position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.wk-ui :is(button,input,select,textarea) {font:inherit}
.wk-ui :is(button,a,input,select):focus-visible {outline:3px solid #80b6c5;outline-offset:3px}
.wk-ui :is(button,a) {-webkit-tap-highlight-color:transparent}
.wk-ui button {transition:background-color .16s,border-color .16s,color .16s,box-shadow .16s}
.wk-ui button:disabled {opacity:.45;cursor:not-allowed}
.wk-ui .sky-shell {min-height:100vh;background:var(--sky);padding-bottom:0;overflow:clip}
.wk-ui .sea {display:none}
.wk-ui .topbar {
  height:76px;max-width:none;width:100%;margin:0;
  padding:0 max(28px,calc((100vw - 1120px)/2));background:#fff;
  border-bottom:1px solid var(--line);box-shadow:none;gap:32px;
}
.wk-ui .brand {font-size:20px;gap:10px;flex-shrink:0;letter-spacing:-.4px}
.wk-ui .brand img {width:38px;height:38px}
.wk-ui .brand span {color:var(--deep)}
.wk-ui .brand strong {display:block}
.wk-ui .main-nav {height:76px;gap:8px;overflow:visible}
.wk-ui .main-nav>a,.wk-ui .nav-menu>a {height:76px;padding:0 15px;font-size:14px;color:#647780;border:0;position:relative}
.wk-ui .main-nav a.active {color:var(--deep);font-weight:700;background:none}
.wk-ui .main-nav>a.active::after {content:"";position:absolute;bottom:0;left:15px;right:15px;height:3px;background:var(--deep);border-radius:3px 3px 0 0}
.wk-ui .nav-menu {height:auto}
.wk-ui .nav-dropdown {top:67px}
.wk-ui .page {width:100%;max-width:1120px;padding:40px 28px 64px;margin:auto}
.wk-ui :is(.study-page,.word-entry-page) {max-width:960px;min-height:calc(100vh - 180px)}
.wk-ui .page-heading {margin-bottom:28px;gap:24px;align-items:center}
.wk-ui .page-heading h1 {font-size:28px;line-height:1.35;letter-spacing:-.5px;color:var(--ink)}
.wk-ui .page-heading p {font-size:13px;line-height:1.8;color:var(--muted);max-width:600px;margin-top:8px}
.wk-ui .section-kicker,.wk-ui .page-heading .section-kicker {font-size:10px;letter-spacing:1.8px;color:var(--deep);font-weight:700;margin:0 0 8px}
.wk-ui :is(.stage,.word-entry,.word-workspace,.filter-panel,.status-overview,.vocabulary-map,.card-maker-controls,.profile-stage,.account-card) {
  background:var(--wk-paper);border:1px solid var(--line);border-radius:16px;box-shadow:0 5px 24px #223d4905;
}
.wk-ui :is(.known,.secondary-button,.pocket-button,.pocket-toggle,.again,.load-more) {
  min-height:42px;padding:10px 16px;border-radius:9px;font-size:13px;line-height:1.5;box-shadow:none;text-decoration:none;
}
.wk-ui .known {color:#fff;background:var(--deep);border:1px solid var(--deep);font-weight:600;min-width:124px}
.wk-ui .known:hover {background:#195466;border-color:#195466;box-shadow:0 3px 10px #24677a20}
.wk-ui :is(.secondary-button,.again,.load-more) {color:#3e5d69;background:#fff;border:1px solid #d5e0e3}
.wk-ui :is(.secondary-button,.again,.load-more):hover {background:#f0f5f5;border-color:#9bbcc4}
.wk-ui :is(.pocket-button,.pocket-toggle) {color:#8a5839;background:#fcf5ed;border:1px solid #ecd8c4;min-height:36px;padding:7px 12px;white-space:nowrap}
.wk-ui :is(.pocket-button.packed,.pocket-toggle.active) {background:#8a5839;border-color:#8a5839;color:white}
.wk-ui :is(.pocket-button,.pocket-toggle):hover {box-shadow:0 0 0 2px #ecd8c450}
.wk-ui :is(.favorite-button,.entry-favorite,.library-favorite) {
  width:36px;height:36px;min-width:36px;display:grid;place-items:center;margin:0;padding:0;
  color:#778a92;background:#fff;border:1px solid var(--line);border-radius:9px;font-size:23px;box-shadow:none;
}
.wk-ui :is(.favorite-button,.entry-favorite,.library-favorite).saved {color:#a67522;background:#fff9e9;border-color:#e7d7ab}
.wk-ui :is(.favorite-button,.entry-favorite,.library-favorite):hover {border-color:#c0a168}
.wk-ui :is(.favorite-button,.library-favorite) span {border:0;padding:0;font-size:23px;color:inherit}
.wk-ui .study-heading {display:flex;align-items:center;gap:14px;margin:0 0 24px}
.wk-ui .study-heading h1 {font-size:24px;line-height:1.4;margin:3px 0 0;letter-spacing:-.4px}
.wk-ui #studyPlanLabel {font-size:12px;line-height:1.5;color:var(--muted);margin:0}
.wk-ui .back-home {width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;box-shadow:none;color:var(--deep)}
.wk-ui .session-progress {margin:0 2px 16px;padding:0;background:none;border:0;border-radius:0;gap:16px;font-size:12px;box-shadow:none}
.wk-ui .session-progress .track {height:5px;border-radius:4px;background:#e0e8e9}
.wk-ui .session-progress .track i {background:var(--deep)}
.wk-ui #progressText {font:12px/1.5 "Microsoft YaHei",sans-serif;font-variant-numeric:tabular-nums;min-width:56px;text-align:right;color:#5e7680}
.wk-ui .stage {min-height:0;padding:30px 40px 0;overflow:visible}
.wk-ui #studyView {display:block}
.wk-ui .card-topline {padding:0;margin:0;display:flex;align-items:center;justify-content:space-between;gap:12px;border:0}
.wk-ui .level {background:none;border:0;padding:0;color:#6a7f87;font-size:11px;font-weight:500;letter-spacing:.3px}
.wk-ui .card-tools {display:flex;flex-direction:row;align-items:center;gap:8px}
.wk-ui #studyView .word,.wk-ui #entryWord {
  width:100%;max-width:none;margin:28px 0 10px;padding:0;text-align:left;
  font-family:Georgia,"Times New Roman",serif;font-weight:700;
  font-size:clamp(40px,4.5vw,60px)!important;line-height:1.14;letter-spacing:-1.5px;color:#213e49;overflow-wrap:anywhere;
}
.wk-ui #studyView .word-pronunciation,.wk-ui .entry-pronunciation {width:100%;max-width:none;display:flex;align-items:center;justify-content:flex-start;gap:12px;margin:0 0 28px;padding:0;font:16px/1.5 Georgia,"Times New Roman",serif;color:#667f8a}
.wk-ui :is(.audio-button,.library-audio) {display:inline-grid;place-items:center;width:32px;height:32px;min-width:32px;padding:0;border:1px solid #dde8eb;border-radius:50%;background:#f5f9fa;color:var(--deep);font-size:15px}
.wk-ui :is(.audio-button,.library-audio):hover {background:#e8f2f4;border-color:#a9cbd3}
.wk-ui :is(.audio-button,.library-audio) {font-size:0}
.wk-ui :is(.audio-button,.library-audio)::before {content:"";width:16px;height:16px;background:currentColor;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cg fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M11 5 6 9H3v6h3l5 4zM15 8a6 6 0 0 1 0 8M18 5a10 10 0 0 1 0 14'/%3E%3C/g%3E%3C/svg%3E") center/contain no-repeat}
.wk-ui #answerPanel {display:block;margin:0;padding:0;border:0}
.wk-ui :is(.definition-list,.entry-definitions) {width:100%;max-width:none;margin:0;padding:19px 22px;background:var(--wk-soft);border:1px solid #e9efef;border-radius:11px;text-align:left}
.wk-ui :is(.definition-row,.entry-definition) {display:grid;grid-template-columns:40px minmax(0,1fr);align-items:baseline;gap:14px;padding:6px 0;margin:0;border:0;font-family:"Microsoft YaHei","PingFang SC",sans-serif;font-size:16px;line-height:1.85;color:#36535f}
.wk-ui :is(.definition-row,.entry-definition) b {font:italic 600 16px/1.6 Georgia,serif;color:#397487}
.wk-ui :is(.definition-row,.entry-definition).without-pos {grid-template-columns:1fr}
.wk-ui :is(.definition-row,.entry-definition) span {min-width:0;overflow-wrap:anywhere}
.wk-ui :is(.word-forms-panel,.entry-section) {margin:26px 0 0;padding:0;border:0}
.wk-ui :is(.word-forms-panel h3,.entry-section h2) {margin:0 0 12px;font-size:12px;font-weight:600;color:#637b86;letter-spacing:.3px}
.wk-ui .word-forms-grid {display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.wk-ui .word-form-cell {padding:11px 16px;border:1px solid #e2e9eb;border-radius:8px;background:#fff;min-width:0}
.wk-ui .word-form-cell span {font:400 18px/1.4 Georgia,"Times New Roman",serif;color:#2d5363;overflow-wrap:anywhere}
.wk-ui .association {margin:26px 0 0;padding:0;border:0}
.wk-ui .morphology {display:flex;flex-wrap:wrap;gap:8px;margin:0 0 18px}
.wk-ui .morphology:empty {display:none}
.wk-ui .module-heading {flex-basis:100%;margin:0 0 12px;font-size:12px;font-weight:600;color:#637b86;letter-spacing:.3px}
.wk-ui .morphology .module-heading {margin-bottom:4px}
.wk-ui .morphology span {padding:6px 10px;border:1px solid var(--line);border-radius:6px;background:#f7f9f8;color:#657e88;font-size:12px}
.wk-ui .morphology b {font:600 16px Georgia,serif;color:var(--deep)}
.wk-ui .relation-groups {display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:0}
.wk-ui .relation-section {padding:15px 16px;border:1px solid #e1e8eb;border-top:1px solid #e1e8eb;border-radius:10px;background:#fff;box-shadow:none;min-width:0}
.wk-ui .relation-section>span {display:block;margin:0 0 9px;font-size:12px;font-weight:600;color:#5e7682}
.wk-ui .relation-section>div {display:grid;grid-template-columns:1fr;gap:0}
.wk-ui .relation-word {display:block;padding:10px 0;border:0;border-top:1px solid #edf1f2;border-radius:0;background:none;text-decoration:none;min-width:0}
.wk-ui .relation-word b {display:block;font:600 18px/1.3 Georgia,"Times New Roman",serif;color:#28586b;white-space:normal;overflow-wrap:anywhere;overflow:visible}
.wk-ui .relation-word small {display:block;margin-top:5px;color:#677d88;font:12px/1.7 "Microsoft YaHei","PingFang SC",sans-serif;white-space:normal;overflow:visible;overflow-wrap:anywhere}
.wk-ui .relation-word:hover {background:#f4f8f9;padding-left:5px}
.wk-ui .relation-word:focus-visible {outline:2px solid #80b6c5;outline-offset:3px}
.wk-ui .relation-section.empty {background:#fafbfb;border-style:dashed}
.wk-ui .relation-section.empty p {font-size:12px;color:#7a8b91;line-height:1.8;margin:0}
@media(min-width:761px) {
  .wk-ui .relation-groups:has(>.empty) {grid-template-columns:repeat(2,minmax(0,1fr))}
  .wk-ui .relation-groups>.empty {grid-column:1/-1;display:flex;align-items:center;gap:16px;padding:10px 16px}
  .wk-ui .relation-groups>.empty>span {margin:0;flex-shrink:0}
  .wk-ui .relation-groups:has(>.empty ~ .empty)>.relation-section:not(.empty) {grid-column:1/-1}
}
.wk-ui #studyView :is(#questionActions,#revealActions) {
  position:sticky;bottom:0;z-index:4;display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin:28px -40px 0;padding:18px 40px;border:0;border-top:1px solid #e3e9eb;
  background:rgba(255,255,255,.98);border-radius:0 0 16px 16px;
}
.wk-ui #studyView #questionActions {margin-top:40px}
.wk-ui #studyView #questionActions .again {width:auto;padding:12px 22px;border:1px solid #d6e1e5;background:#fff;text-align:center;color:#5c7280}
.wk-ui #studyView #questionActions .known {width:auto;min-width:150px;padding:12px 24px}
.wk-ui #nextButton {min-width:150px}
.wk-ui .classification {display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px;font-size:12px;color:#5f7680}
.wk-ui .inline-action {padding:3px 0;color:#28697c;font-size:12px}
.wk-ui .classification .inline-action {min-height:30px;padding:3px 0;border-radius:0}
.wk-ui #classificationText {font-size:12px;line-height:1.6}
.wk-ui .quiz-panel {width:100%;max-width:none;margin:0;text-align:left;padding:0}
.wk-ui .quiz-panel>p {text-align:left;font-size:12px;color:var(--muted);margin:0 0 12px}
.wk-ui .quiz-options {display:grid;grid-template-columns:1fr 1fr;gap:10px;padding-bottom:30px}
.wk-ui .quiz-option {min-height:70px;padding:14px;border-radius:10px;border:1px solid var(--line);font-size:14px;line-height:1.7;color:#3b5662;background:#fff;box-shadow:none}
.wk-ui .quiz-option b {width:28px;height:28px;border-radius:7px;background:#f0f5f6;color:#507783;font:600 14px Georgia,serif}
.wk-ui .quiz-option:hover {background:#f0f7f8;border-color:#78aab9}
.wk-ui .done {padding:25px 0 35px}
.wk-ui .done-mark {background:#eaf3f1;color:#34735e}
.wk-ui .entry-back {display:inline-block;margin:0 0 20px;color:var(--muted);font-size:13px;text-decoration:none}
.wk-ui .word-entry {padding:30px 40px 36px;width:100%;max-width:none;margin:0}
.wk-ui .entry-head {display:flex;justify-content:space-between;align-items:flex-start;gap:20px;padding:0;margin:0;border:0}
.wk-ui .entry-head>div:first-child {min-width:0;flex:1}
.wk-ui .entry-kicker {font:11px/1.7 "Microsoft YaHei",sans-serif;color:#6a7f87;margin:0}
.wk-ui .entry-actions {gap:8px;flex-shrink:0}
.wk-ui #entryWord {margin-top:26px}
.wk-ui :is(.entry-loading,.entry-empty,.empty-state) {padding:64px 24px;border:1px dashed #d4e1e5;border-radius:12px;background:#fafcfc;text-align:center;color:#647b85}
.wk-ui .filter-panel {padding:8px 24px;margin-bottom:24px}
.wk-ui .filter-row {padding:13px 0;border-color:#edf1f2;gap:22px}
.wk-ui .filter-row>strong {font-size:12px;color:#657d88;min-width:70px}
.wk-ui .choice-group {gap:8px;flex-wrap:wrap}
.wk-ui .choice-group label {padding:5px 9px;border:1px solid transparent;border-radius:6px;font-size:12px;cursor:pointer}
.wk-ui .choice-group label:has(input:checked) {background:#eef5f6;border-color:#d0e3e8;color:#205b6f}
.wk-ui input {accent-color:var(--deep)}
.wk-ui :is(.search-box,.root-control input,select) {border:1px solid #d6e2e6;border-radius:8px;background:#fff;color:#375865;min-height:38px}
.wk-ui .search-box {padding:7px 13px;gap:12px}
.wk-ui .search-box input {border:0;background:transparent;min-width:0;font-size:13px}
.wk-ui .alphabet {gap:5px}
.wk-ui .alphabet button {width:27px;height:28px;border:1px solid transparent;border-radius:5px;font-size:12px;background:#f4f7f7;color:#647c86}
.wk-ui .alphabet button:first-child {width:42px}
.wk-ui .alphabet button.active {background:var(--deep);color:#fff;border-color:var(--deep)}
.wk-ui .library-list {display:grid;gap:12px}
.wk-ui .library-word {display:grid;grid-template-columns:190px minmax(0,1fr) 170px;align-items:start;gap:24px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:none}
.wk-ui .library-term strong {font:600 25px/1.3 Georgia,"Times New Roman",serif;color:#274c5c;overflow-wrap:anywhere}
.wk-ui .library-books {flex-wrap:wrap;gap:5px;margin-top:10px}
.wk-ui .library-books small {font-size:10px;border-radius:4px;padding:2px 6px}
.wk-ui .library-definition-row {font-size:13px;line-height:1.85;grid-template-columns:32px minmax(0,1fr);gap:10px;color:#526d79}
.wk-ui .library-definition-row b {font-family:Georgia,serif;color:#397487}
.wk-ui .library-definition-row.without-pos {grid-template-columns:1fr}
.wk-ui .library-tags {flex-direction:column;align-items:flex-end;gap:16px}
.wk-ui .library-actions {gap:8px;flex-wrap:nowrap}
.wk-ui .library-tags span {border-color:#e0e8eb;font-size:10px;color:#667e87}
.wk-ui .pagination {height:auto;margin:28px 0 0;justify-content:center;flex-wrap:wrap;gap:8px}
.wk-ui .pagination button {height:36px;min-width:36px;border-radius:7px;background:#fff;border:1px solid var(--line);color:#526c78}
.wk-ui .pagination button.active {background:var(--deep);color:#fff;border-color:var(--deep)}
.wk-ui .status-overview {padding:24px 28px}
.wk-ui .overview-title strong {font:600 22px Georgia,serif}
.wk-ui .status-track {height:14px}
.wk-ui .status-segment {height:14px}
.wk-ui .status-legend {gap:8px 22px}
.wk-ui .status-total {font-size:12px;text-align:left}
.wk-ui .vocabulary-map {grid-template-columns:minmax(0,1fr) minmax(0,1fr);padding:28px;gap:28px}
.wk-ui .map-copy h2 {font-size:25px}
.wk-ui .map-copy>p:not(.section-kicker) {font-size:13px}
.wk-ui .map-union {flex-wrap:wrap;gap:6px 12px}
.wk-ui .map-union strong {font-size:38px;color:var(--deep)}
.wk-ui .venn {min-height:320px}
.wk-ui .venn-circle {width:190px;height:190px;box-shadow:none}
.wk-ui .venn-circle strong {font-size:16px}
.wk-ui .venn-circle span {font-size:24px}
.wk-ui .venn-cet4 {background:#bcdde3}
.wk-ui .venn-cet6 {background:#f2d4b7}
.wk-ui .venn-postgrad {background:#c9dfd1}
.wk-ui .status-tabs {padding:0;gap:0}
.wk-ui .status-tabs button {min-width:90px;font-size:13px;padding:17px 10px;background:#f8fafb}
.wk-ui .status-tabs button.active {background:#fff;border-color:var(--deep)}
.wk-ui .saved-word {padding:20px 0;gap:18px}
.wk-ui .saved-main {grid-template-columns:150px minmax(0,1fr);gap:10px 20px}
.wk-ui .saved-main small {grid-column:1/-1;font-size:11px}
.wk-ui .saved-main strong {font-size:22px}
.wk-ui .saved-main span {font-size:13px}
.wk-ui .saved-actions {flex-wrap:wrap;justify-content:flex-end}
.wk-ui .saved-actions select {font-size:12px}
.wk-ui .card-maker-grid {grid-template-columns:minmax(290px,.72fr) minmax(0,1fr);gap:28px}
.wk-ui .card-maker-controls {padding:24px}
.wk-ui .card-maker-list {max-height:430px}
.wk-ui .card-maker-row {padding:14px 0;gap:10px}
.wk-ui .card-maker-row strong {font-size:18px}
.wk-ui .card-maker-row small {font-size:12px;margin-top:5px;line-height:1.7}
.wk-ui .card-maker-row button {font-size:12px;min-height:36px}
.wk-ui .card-maker-actions {display:grid;grid-template-columns:1fr 1fr;gap:10px}
.wk-ui .card-maker-actions .known {grid-column:1/-1}
.wk-ui .card-sheet-wrap {padding:0}
.wk-ui .card-sheet {border-color:#dce4e7;border-radius:4px;box-shadow:0 12px 28px #2947550a}
.wk-ui .card-sheet-row strong {overflow-wrap:anywhere;min-width:0}
.wk-ui .card-sheet-row p {overflow-wrap:anywhere;min-width:0}
.wk-ui .profile-stage {padding:28px}
.wk-ui .cloud {display:none}
.wk-ui .profile-page {max-width:960px}
.wk-ui .profile-page>h1 {font-size:28px;margin:0 0 24px}
.wk-ui .account-panel {padding:24px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:none;margin:0 0 20px}
.wk-ui .account-avatar {width:64px;height:64px;border-radius:14px;background:#f6f8f8}
.wk-ui .account-guest strong,.wk-ui .account-identity strong {font-size:17px;color:var(--ink)}
.wk-ui .account-guest span,.wk-ui .account-identity span {font-size:12px;line-height:1.8;color:var(--muted)}
.wk-ui .profile-total strong {font-size:48px;color:var(--deep)}
.wk-ui .result-grid {max-width:none;border-color:var(--line)}
.wk-ui .result-grid strong {font-size:29px}
.wk-ui .result-grid div {border-color:var(--line)}
.wk-ui .account-dialog input:not([type=radio]) {min-height:43px;border:1px solid var(--line);border-radius:8px;padding:10px 12px}
.wk-ui .site-footer {width:100%;max-width:none;min-height:86px;margin:0!important;padding:25px max(28px,calc((100vw - 1064px)/2));background:var(--sky)!important;border-top:1px solid var(--line);gap:20px;font-size:11px;color:#7b8b91}
.wk-ui .site-footer a {color:#70848e}
.wk-ui .toast {max-width:calc(100vw - 32px);white-space:normal;text-align:center;padding:12px 18px;border-radius:10px;background:#234c5e;font-size:13px;bottom:24px}
.wk-ui .dialog,#studyDialog {width:min(520px,calc(100vw - 32px));padding:28px;border:1px solid #dfe7e9;border-radius:16px;box-shadow:0 20px 80px #173e5030;color:#203d49;font-family:"Microsoft YaHei","PingFang SC",sans-serif}
.wk-ui .dialog::backdrop,#studyDialog::backdrop {background:#19394455;backdrop-filter:blur(3px)}
.wk-ui .dialog h2,#studyDialog h2 {font-size:21px;margin:0}
.wk-ui .dialog form,#studyDialog form {padding:0}
#studyDialog fieldset {margin:24px 0 0;border:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
#studyDialog legend {font-size:12px;color:#647d88;margin-bottom:10px}
#studyDialog fieldset label {display:inline-flex;align-items:center;gap:5px;padding:10px 12px;border:1px solid #dfe7e9;border-radius:8px;font-size:13px;margin:0;cursor:pointer}
#studyDialog fieldset label:has(input:checked) {background:#eff6f7;border-color:#8fb7c2;color:#24677a}
#studyDialog input {accent-color:#24677a}
#studyDialog .known {background:#24677a;border-radius:9px}
#studyDialog .secondary-button {border-radius:9px}
#studyDialog .launcher-note {font-size:12px;color:#687e88;line-height:1.7}
@media(max-width:1000px) {
  .wk-ui .library-word {grid-template-columns:155px minmax(0,1fr);gap:18px}
  .wk-ui .library-tags {grid-column:1/-1;flex-direction:row;align-items:center;justify-content:space-between}
  .wk-ui .library-tag-set {justify-content:flex-start}
  .wk-ui .saved-word {grid-template-columns:1fr}
  .wk-ui .vocabulary-map {gap:20px}
  .wk-ui .venn-circle {width:170px;height:170px}
  .wk-ui .venn {min-height:290px}
}
@media(max-width:760px) {
  .wk-ui .topbar {height:auto;min-height:100px;display:flex;flex-direction:column;align-items:stretch;gap:0;padding:12px 20px 0}
  .wk-ui .brand {align-self:flex-start;font-size:18px;gap:8px;height:32px}
  .wk-ui .brand img {width:30px;height:30px}
  .wk-ui .main-nav {display:flex;justify-content:space-between;width:100%;height:48px;gap:0;margin-top:6px;overflow:visible}
  .wk-ui .main-nav>a,.wk-ui .nav-menu>a {height:48px;padding:0 7px;font-size:12px;white-space:nowrap}
  .wk-ui .main-nav>a.active::after {left:7px;right:7px}
  .wk-ui .nav-dropdown {top:45px;left:0;transform:translate(0,-5px)}
  .wk-ui .nav-menu:hover .nav-dropdown,.wk-ui .nav-menu:focus-within .nav-dropdown {transform:translate(0,0)}
  .wk-ui .page {padding:25px 16px 40px}
  .wk-ui .page-heading {flex-direction:column;align-items:stretch;gap:16px;margin-bottom:22px}
  .wk-ui .page-heading h1 {font-size:25px}
  .wk-ui .heading-actions {display:flex;width:100%}
  .wk-ui .heading-actions>* {flex:1}
  .wk-ui .study-heading {margin-bottom:20px}
  .wk-ui .study-heading h1 {font-size:21px}
  .wk-ui .stage {padding:22px 22px 0;border-radius:13px}
  .wk-ui #studyView .word,.wk-ui #entryWord {font-size:clamp(38px,11vw,50px)!important;letter-spacing:-1px;margin-top:25px}
  .wk-ui #studyView .word-pronunciation,.wk-ui .entry-pronunciation {margin-bottom:24px;font-size:15px}
  .wk-ui .card-topline {align-items:center}
  .wk-ui .level {font-size:10px;letter-spacing:0}
  .wk-ui .card-tools {gap:6px;flex-shrink:0}
  .wk-ui :is(.pocket-button,.pocket-toggle) {font-size:11px;padding:7px 9px}
  .wk-ui :is(.definition-list,.entry-definitions) {padding:14px 15px}
  .wk-ui :is(.definition-row,.entry-definition) {font-size:14px;line-height:1.85;grid-template-columns:30px minmax(0,1fr);gap:8px}
  .wk-ui .word-form-cell {padding:10px 12px}
  .wk-ui .word-form-cell span {font-size:17px}
  .wk-ui .relation-groups {grid-template-columns:1fr;gap:10px}
  .wk-ui .relation-section {padding:14px 16px}
  .wk-ui .relation-section>div {grid-template-columns:repeat(2,minmax(0,1fr));column-gap:16px}
  .wk-ui .relation-section.empty {padding:12px 16px}
  .wk-ui .relation-section.empty>span {display:inline;margin-right:12px}
  .wk-ui .relation-section.empty p {display:inline;font-size:11px}
  .wk-ui #studyView :is(#questionActions,#revealActions) {margin:24px -22px 0;padding:16px 22px;border-radius:0 0 13px 13px;gap:12px}
  .wk-ui #studyView #questionActions {margin-top:30px}
  .wk-ui #studyView #questionActions .known,.wk-ui #nextButton {min-width:112px}
  .wk-ui #studyView #questionActions .again {padding:12px 20px}
  .wk-ui .classification {gap:4px 10px}
  .wk-ui #classificationText {flex-basis:100%}
  .wk-ui .quiz-options {grid-template-columns:1fr;gap:9px;padding-bottom:22px}
  .wk-ui .quiz-option {min-height:60px;padding:12px}
  .wk-ui .word-entry {padding:22px}
  .wk-ui .entry-head {position:relative;display:block}
  .wk-ui .entry-kicker {max-width:calc(100% - 140px);min-height:36px;display:flex;align-items:center;font-size:10px}
  .wk-ui .entry-actions {position:absolute;top:0;right:0}
  .wk-ui #entryWord {margin-top:18px}
  .wk-ui .filter-panel {padding:4px 16px}
  .wk-ui .filter-row {gap:8px;display:flex;flex-direction:column;padding:13px 0}
  .wk-ui .filter-row>strong {width:auto}
  .wk-ui .filter-note {font-size:10px}
  .wk-ui .choice-group {gap:3px}
  .wk-ui .choice-group label {padding:5px 7px}
  .wk-ui .search-box {width:100%}
  .wk-ui .search-box input {width:100%}
  .wk-ui .library-word {grid-template-columns:1fr;padding:20px;gap:16px}
  .wk-ui .library-term strong {font-size:27px}
  .wk-ui .library-tags {grid-column:1;flex-wrap:wrap;gap:12px}
  .wk-ui .library-actions {margin-left:auto}
  .wk-ui .status-overview {padding:20px}
  .wk-ui .overview-title {flex-direction:row;align-items:center;gap:12px}
  .wk-ui .overview-title>div {flex-wrap:wrap;gap:6px}
  .wk-ui .overview-title strong {font-size:18px;white-space:nowrap}
  .wk-ui .status-legend {display:flex;gap:6px 14px}
  .wk-ui .status-legend button {font-size:12px;min-height:32px}
  .wk-ui .vocabulary-map {grid-template-columns:1fr;padding:22px;gap:16px}
  .wk-ui .venn {max-width:380px;width:100%;margin:auto;min-height:285px}
  .wk-ui .venn-circle {width:165px;height:165px}
  .wk-ui .status-tabs button {min-width:0;padding:15px 5px;font-size:12px;white-space:nowrap}
  .wk-ui .status-tabs span {display:block;margin:1px 0 0;font-size:10px}
  .wk-ui .saved-main {grid-template-columns:1fr;gap:5px}
  .wk-ui .saved-actions {justify-content:space-between;gap:6px}
  .wk-ui .saved-list {padding:0 20px}
  .wk-ui .card-maker-grid {grid-template-columns:1fr;gap:24px}
  .wk-ui .card-maker-controls {padding:20px}
  .wk-ui .card-sheet {padding:24px 18px;min-height:620px}
  .wk-ui .card-sheet-row strong {font-size:14px}
  .wk-ui .profile-stage {padding:22px}
  .wk-ui .account-panel {padding:20px}
  .wk-ui .account-guest {display:grid;grid-template-columns:48px minmax(0,1fr);gap:14px}
  .wk-ui .account-avatar {width:48px;height:48px}
  .wk-ui .account-controls {grid-column:1/-1;display:flex;flex-wrap:wrap;gap:10px}
  .wk-ui .site-footer {padding:24px 20px;min-height:80px;flex-wrap:wrap;gap:14px}
}
@media(max-width:370px) {
  .wk-ui .page {padding-left:12px;padding-right:12px}
  .wk-ui .stage {padding-left:18px;padding-right:18px}
  .wk-ui #studyView :is(#questionActions,#revealActions) {margin-left:-18px;margin-right:-18px;padding-left:18px;padding-right:18px}
  .wk-ui .level {max-width:100px}
  .wk-ui .relation-section>div {grid-template-columns:1fr}
  .wk-ui .venn-circle {width:140px;height:140px}
  .wk-ui .venn {min-height:245px}
}
@media(prefers-reduced-motion:reduce) {.wk-ui * {transition:none!important;scroll-behavior:auto!important}}
@media print {
  .wk-ui {background:#fff;color:#000}
  .wk-ui .sky-shell {background:#fff;overflow:visible}
  .wk-ui :is(.topbar,.page-heading,.card-maker-controls,.toast) {display:none!important}
  .wk-ui .card-maker-page {padding:0;max-width:none}
  .wk-ui .card-maker-grid {display:block}
  .wk-ui .card-sheet {border:0;box-shadow:none;border-radius:0;min-height:0}
}