:root{--ink:#14292d;--muted:#6a7d80;--line:#dce7e5;--paper:#fff;--mist:#f2f8f7;--teal:#186d70;--deep:#0f4f54;--coral:#ce654b;--amber:#d4942b;--shadow:0 20px 55px rgba(21,64,66,.13)}*{box-sizing:border-box}body{min-height:100vh;margin:0;background:linear-gradient(135deg,#f5faf8,#e7f1ef);color:var(--ink);font:16px/1.65 "Microsoft YaHei","PingFang SC",system-ui,sans-serif}.review-header{width:min(1020px,calc(100% - 40px));height:70px;margin:auto;display:flex;align-items:center;justify-content:space-between}.back-link,.brand{display:inline-flex;align-items:center;gap:9px;color:var(--muted);font-size:.88rem;font-weight:800;text-decoration:none}.back-link:hover{color:var(--teal)}.brand b{display:grid;place-items:center;width:28px;height:28px;border-radius:8px;background:var(--deep);color:#fff;font:800 1rem/1 Georgia,serif}.review-app{width:min(820px,calc(100% - 40px));margin:18px auto 168px}.review-toolbar{display:flex;align-items:end;justify-content:space-between;gap:20px;margin:22px 0 24px}.overline{margin:0 0 4px;color:var(--teal);font-size:.7rem;font-weight:900;letter-spacing:.16em}.review-toolbar h1{margin:0;font:500 clamp(2rem,5vw,3.35rem)/1 Georgia,"Microsoft YaHei",serif;letter-spacing:-.05em}.toolbar-controls{display:flex;gap:8px;align-items:center}.select-wrap select,.search-form input,.search-form button{height:39px;border:1px solid var(--line);background:#fff;color:var(--ink);font:inherit;font-size:.82rem}.select-wrap select{padding:0 26px 0 10px}.search-form{display:flex}.search-form input{width:128px;padding:0 10px;border-right:0}.search-form button{padding:0 11px;background:var(--deep);border-color:var(--deep);color:#fff;font-weight:800;cursor:pointer}.notice-card{padding:28px;border:1px solid var(--line);background:rgba(255,255,255,.72);color:var(--muted);text-align:center}.notice-card.is-error{border-color:#e5b5aa;color:#944634;background:#fff8f6}.card-stage{min-height:500px}.word-card{overflow:hidden;border:1px solid rgba(19,93,95,.16);border-radius:22px;background:var(--paper);box-shadow:var(--shadow)}.recall-card{min-height:510px;display:flex;flex-direction:column;cursor:pointer;background:linear-gradient(160deg,#dcefeb 0,#f8fcfb 45%,#fff 45%)}.card-topline{display:flex;justify-content:space-between;padding:21px 25px;color:var(--muted);font-size:.78rem}.card-topline span:first-child{color:var(--teal);font-weight:900;letter-spacing:.06em}.word-center{display:grid;place-content:center;justify-items:center;flex:1;padding:50px 20px;text-align:center}.word-center h2,.word-head h2{margin:0;font:500 clamp(3rem,10vw,5.5rem)/1.04 Georgia,serif;letter-spacing:-.06em}.ipa{margin:15px 0 19px;color:#42565a;font:1.15rem/1.4 Georgia,serif}.listen-button,.audio-circle{border:0;background:transparent;color:var(--teal);cursor:pointer}.listen-button{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border:1px solid #a5c8c3;border-radius:999px;font-weight:800}.listen-button span{font-size:.78rem}.reveal-button{border:0;border-top:1px solid var(--line);padding:20px;background:#fff;color:var(--deep);font:800 .93rem/1 inherit;cursor:pointer}.reveal-button span{margin-left:8px;font-size:1.2rem}.detail-card{padding:0}.word-head{display:flex;align-items:start;justify-content:space-between;gap:18px;padding:30px 30px 24px;background:linear-gradient(135deg,#d8efeb,#f3f9f8)}.word-head h2{font-size:clamp(2.7rem,8vw,4.6rem)}.ipa-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:13px;color:#40575b;font:1.02rem Georgia,serif}.ipa-tag{padding:4px 8px;border:1px solid rgba(24,109,112,.22);background:rgba(255,255,255,.58)}.audio-circle{display:grid;place-items:center;width:46px;height:46px;border:1px solid #93beb9;border-radius:50%;background:#fff;font-size:1.45rem}.meaning-panel{padding:25px 30px 13px}.detail-section{padding:14px 30px 22px}.meaning-panel h3,.detail-section h3{margin:0 0 14px;color:var(--muted);font-size:.78rem;letter-spacing:.09em}.sense{padding:16px 0;border-top:1px solid var(--line)}.sense:first-child{border-top:0}.sense-head{display:flex;align-items:baseline;gap:9px}.sense-no{display:grid;place-items:center;flex:0 0 23px;width:23px;height:23px;border-radius:50%;background:var(--teal);color:#fff;font:800 .69rem/1 system-ui}.pos{color:var(--teal);font-weight:900;font-size:.78rem}.meaning-zh{margin:4px 0 0;font-size:1.07rem;font-weight:800}.meaning-en{margin:4px 0;color:var(--muted);font-size:.87rem}.example{margin:13px 0 0;padding:12px 14px;border-left:3px solid #9cc9c2;background:var(--mist)}.example-en{margin:0;color:#294348}.example-zh{margin:4px 0 0;color:var(--muted)}.chip-list{display:flex;flex-wrap:wrap;gap:8px}.chip{padding:6px 9px;border:1px solid var(--line);background:#fbfdfc;font-size:.86rem}.chip b{margin-right:4px;color:var(--teal)}.usage-list{display:grid;gap:9px}.usage{padding:11px 13px;border-left:3px solid var(--amber);background:#fff9ed}.usage b{display:block;margin-bottom:3px;color:#765010;font-size:.84rem}.usage p{margin:0;color:#4d5554;font-size:.9rem}.attribution{padding:18px 30px;border-top:1px solid var(--line);color:var(--muted);font-size:.75rem}.attribution a{color:var(--teal)}.hide-answer{width:100%;border:0;border-top:1px solid var(--line);padding:16px;background:#fff;color:var(--teal);font-weight:800;cursor:pointer}.review-dock{position:fixed;z-index:10;right:0;bottom:0;left:0;border-top:1px solid #cfe3df;background:rgba(255,255,255,.93);box-shadow:0 -10px 32px rgba(24,69,71,.08);backdrop-filter:blur(10px)}.grade-actions,.review-stats{width:min(820px,calc(100% - 40px));margin:auto}.review-stats{padding:9px 0 4px;color:var(--muted);font-size:.75rem}.grade-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;padding:6px 0 15px}.grade-actions button{min-height:57px;border:0;border-radius:10px;color:#fff;cursor:pointer}.grade-actions button:nth-child(1){background:var(--coral)}.grade-actions button:nth-child(2){background:var(--amber)}.grade-actions button:nth-child(3){background:var(--teal)}.grade-actions b,.grade-actions small{display:block}.grade-actions b{font-size:1rem}.grade-actions small{margin-top:1px;opacity:.82}.sr-only{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}@media(max-width:680px){.review-header{width:min(100% - 28px,1020px);height:58px}.brand span,.back-link span{display:none}.review-app{width:min(100% - 28px,820px);margin-top:8px;margin-bottom:157px}.review-toolbar{align-items:start;flex-direction:column;margin:15px 0 18px}.toolbar-controls{width:100%}.select-wrap,.select-wrap select,.search-form{flex:1}.search-form input{width:100%}.card-stage{min-height:450px}.recall-card{min-height:450px;border-radius:17px}.word-head{padding:24px 20px}.meaning-panel,.detail-section{padding-right:20px;padding-left:20px}.attribution{padding-right:20px;padding-left:20px}.card-topline{padding:17px 18px}.grade-actions,.review-stats{width:min(100% - 28px,820px)}.grade-actions{gap:6px}.grade-actions button{min-height:54px}.grade-actions b{font-size:.9rem}.grade-actions small{font-size:.68rem}}
.learning-tool-notice{display:flex;gap:10px;align-items:baseline;margin:0 0 17px;padding:11px 13px;border:1px solid #cfe0dc;background:rgba(255,255,255,.66);color:var(--muted);font-size:.78rem}.learning-tool-notice b{flex:0 0 auto;color:var(--deep);font-size:.8rem}.learning-tool-notice span{line-height:1.6}@media(max-width:680px){.learning-tool-notice{align-items:flex-start;flex-direction:column;gap:3px}}

.sync-button{height:39px;padding:0 10px;border:1px solid #b9d2ce;border-radius:7px;background:#fff;color:var(--teal);font:800 .78rem/1 system-ui,sans-serif;cursor:pointer}.sync-button:hover{border-color:var(--teal);background:var(--mist)}.sync-button:disabled{opacity:.65;cursor:wait}@media(max-width:680px){.toolbar-controls{flex-wrap:wrap}.sync-button{flex:0 0 auto}}
.translation-summary{margin:0 0 16px;padding:13px 15px;border-left:3px solid #186d70;background:#eef7f5}.translation-summary b{display:block;color:#0f4f54;font-size:.82rem}.translation-summary p{margin:5px 0;color:#1e3639;font-size:1rem;font-weight:700;white-space:pre-line}.translation-summary small{color:#6a7d80;font-size:.72rem}
.sync-modal{position:fixed;z-index:30;inset:0;display:grid;place-items:center;padding:20px;background:rgba(8,36,39,.52);backdrop-filter:blur(4px)}.sync-modal[hidden]{display:none}.sync-modal-card{position:relative;width:min(100%,440px);max-height:calc(100vh - 40px);overflow:auto;padding:30px;border-radius:18px;background:#fff;box-shadow:0 30px 80px rgba(0,0,0,.26)}.sync-modal-card h2{margin:0;font:500 2rem/1.15 Georgia,"Microsoft YaHei",serif}.sync-modal-close{position:absolute;top:13px;right:16px;width:34px;height:34px;border:0;background:transparent;color:var(--muted);font-size:1.8rem;line-height:1;cursor:pointer}.sync-modal-intro{margin:13px 0 17px;color:var(--muted);font-size:.88rem}.sync-auth-message{margin:0 0 14px;padding:9px 11px;border:1px solid #e9c2b9;background:#fff6f3;color:#984534;font-size:.84rem}.sync-auth-form{display:grid;gap:12px}.sync-auth-form label{display:grid;gap:5px;color:#40575b;font-size:.82rem;font-weight:800}.sync-auth-form input:not([type=checkbox]){height:42px;padding:0 11px;border:1px solid var(--line);border-radius:7px;color:var(--ink);font:inherit}.sync-auth-form .sync-consent{display:flex;gap:7px;align-items:flex-start;color:var(--muted);font-weight:400;line-height:1.55}.sync-consent input{margin-top:4px}.sync-consent a,.sync-text-button{color:var(--teal)}.sync-submit{min-height:44px;border:0;border-radius:7px;background:var(--deep);color:#fff;font:800 .88rem/1 inherit;cursor:pointer}.sync-auth-form p{margin:0;color:var(--muted);font-size:.82rem;text-align:center}.sync-text-button{border:0;padding:0;background:transparent;font:inherit;font-weight:800;cursor:pointer;text-decoration:underline}
.sync-auth-form[hidden]{display:none}
.sync-code-row{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:end}.sync-code-button{height:42px;padding:0 11px;border:1px solid #9ec7c1;border-radius:7px;background:#fff;color:var(--teal);font:800 .78rem/1 inherit;cursor:pointer}.sync-code-button:disabled{opacity:.58;cursor:wait}.captcha-hint{margin:-4px 0 0!important;color:var(--muted);font-size:.76rem!important;text-align:left!important}@media(max-width:430px){.sync-code-row{grid-template-columns:1fr}.sync-code-button{width:100%}}.word-actions{display:flex;gap:8px;align-items:center}.favorite-button,.master-button{border:1px solid #9bc4be;border-radius:7px;background:#fff;color:var(--teal);font:800 .78rem/1 inherit;cursor:pointer}.favorite-button{height:36px;padding:0 10px}.favorite-button.is-active{border-color:#d4942b;background:#fff7e7;color:#9a6510}.mastery-section{border-top:1px solid var(--line)}.mastery-section p{margin:0 0 10px;color:var(--muted);font-size:.84rem}.master-button{padding:10px 13px}.master-button:disabled{opacity:.5;cursor:not-allowed}.dashboard h1{margin:0 0 8px;font:500 clamp(2.2rem,6vw,3.8rem)/1.1 Georgia,"Microsoft YaHei",serif}.dashboard-intro{margin:0 0 26px;color:var(--muted)}.plan-card{margin:26px 0;padding:27px;border-radius:18px;background:linear-gradient(135deg,#0f4f54,#237b78);color:#fff}.plan-card h2{margin:0;font:500 2rem/1.15 Georgia,"Microsoft YaHei",serif}.plan-card p:not(.overline){opacity:.86}.plan-link{display:inline-block;margin-top:4px;color:#fff;font-weight:800}.dashboard-head{display:flex;justify-content:space-between;gap:15px;align-items:baseline;margin:28px 0 12px}.dashboard-head h2{margin:0;font-size:1.05rem}.dashboard-head span,.dashboard-head a{color:var(--muted);font-size:.8rem}.dashboard-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.bank-card{padding:18px;border:1px solid var(--line);background:#fff;color:var(--ink);text-decoration:none}.bank-card:hover{border-color:var(--teal)}.bank-card span{color:var(--teal);font-size:.68rem;font-weight:900;letter-spacing:.1em}.bank-card h3{margin:6px 0;font-size:1rem}.bank-card p,.bank-card small{color:var(--muted);font-size:.82rem}.dashboard-columns{display:grid;grid-template-columns:1fr 1fr;gap:22px}.dashboard-list{display:grid;gap:7px;padding:16px;border:1px solid var(--line);background:#fff}.dashboard-list a{color:var(--teal);font-weight:800;text-decoration:none}.dashboard-list p{margin:0;color:var(--muted);font-size:.85rem}@media(max-width:620px){.dashboard-columns{grid-template-columns:1fr}.dashboard-grid{grid-template-columns:1fr}}.sync-status{margin-left:auto;color:var(--teal);font-weight:800;white-space:nowrap}@media(max-width:680px){.sync-status{margin-left:0}}
.plan-settings{display:grid;gap:10px}.plan-setting{display:grid;grid-template-columns:minmax(150px,1fr) repeat(2,minmax(120px,160px)) auto;gap:12px;align-items:end;padding:15px;border:1px solid var(--line);background:#fff}.plan-setting div{display:grid;gap:3px}.plan-setting small{color:var(--muted)}.plan-setting label{display:grid;gap:5px;color:var(--muted);font-size:.78rem;font-weight:800}.plan-setting input{height:38px;padding:0 9px;border:1px solid var(--line);font:inherit}.plan-setting button{height:38px;padding:0 14px;border:0;background:var(--deep);color:#fff;font-weight:800;cursor:pointer}.plan-setting button:disabled{opacity:.6}.dashboard>#logoutButton{margin:28px 0 10px}.dashboard #dashboardMessage:empty{display:none}@media(max-width:720px){.plan-setting{grid-template-columns:1fr 1fr}.plan-setting div{grid-column:1/-1}.plan-setting button{align-self:end}}@media(max-width:430px){.plan-setting{grid-template-columns:1fr}.plan-setting div{grid-column:auto}}