:root{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:#203833;background:#f4f7f6;font-synthesis:none}*{box-sizing:border-box}body{margin:0;min-height:100vh}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.48}input,textarea{border:1px solid #d9e3df;border-radius:13px;background:#fff;color:#203833;outline:none}input:focus,textarea:focus{border-color:#2a8972;box-shadow:0 0 0 3px #2a897224}input{min-height:49px;padding:10px 14px}textarea{resize:vertical;min-height:94px;padding:13px 14px}p{line-height:1.55}[hidden]{display:none!important}.app-shell{min-height:100vh}.topbar{height:82px;display:flex;align-items:center;justify-content:space-between;padding:0 max(28px,calc((100vw - 1420px)/2));background:#fff;border-bottom:1px solid #e6eeeb}.brand{display:flex;align-items:center;gap:11px}.brand-mark{width:42px;height:42px;border-radius:13px;background:#1e765f;color:white;display:grid;place-items:center;font-size:23px;font-weight:700;flex:none}.brand strong{display:block;font-size:20px;letter-spacing:1px}.brand small{display:block;font-size:11px;color:#80938d;letter-spacing:2px;margin-top:1px}.topbar-side{display:flex;align-items:center;gap:22px;font-size:13px;color:#70867f}.text-button{border:0;background:none;color:#447e6d;font-size:13px}.layout{display:grid;grid-template-columns:224px minmax(0,1fr);max-width:1420px;margin:0 auto;min-height:calc(100vh - 82px)}.nav{padding:35px 14px 28px;border-right:1px solid #e6eeeb;display:flex;flex-direction:column;gap:7px}.nav-item{display:flex;align-items:center;gap:14px;border:0;background:transparent;color:#71847d;border-radius:12px;text-align:left;padding:15px 16px;font-weight:600;font-size:15px;min-height:54px}.nav-item:hover{background:#eaf2ee}.nav-item.active{background:#dfeee8;color:#176d55}.nav-icon{font-size:21px;line-height:1;width:25px;text-align:center}.nav-foot{margin:auto 15px 0;border-top:1px solid #e2eae7;padding-top:22px;font-size:12px;color:#a0afa9}main{padding:46px clamp(24px,4vw,66px) 80px;min-width:0}.panel{max-width:970px}.page-heading{display:flex;justify-content:space-between;align-items:end;margin-bottom:27px}.eyebrow{font-size:11px;letter-spacing:2.5px;color:#4f9982;font-weight:800}.page-heading h1{font-size:32px;line-height:1.1;letter-spacing:-.5px;margin:9px 0 8px}.page-heading p{margin:0;color:#7b8e87;font-size:14px}.stats-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-bottom:22px}.stat-card{background:#fff;border:1px solid #e5ede9;border-radius:18px;padding:19px 22px;min-height:104px}.stat-card span{display:block;font-size:13px;color:#7d9089}.stat-card strong{display:block;font-size:32px;color:#206f58;line-height:1.2;margin-top:10px}.content-card,.review-card{background:#fff;border:1px solid #e4ece8;border-radius:22px;box-shadow:0 12px 38px #264f4209}.content-card{padding:30px}.review-card{min-height:355px;padding:34px}.review-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px}.chip{display:inline-block;background:#e7f4ed;color:#277257;padding:7px 11px;border-radius:100px;font-size:12px;font-weight:700}.muted{color:#8a9b94;font-size:13px}.prompt-label{color:#69877b;font-size:14px;margin-bottom:12px}.prompt-word{font-size:clamp(28px,4vw,42px);font-weight:700;letter-spacing:-.5px;line-height:1.35;word-break:break-word;margin-bottom:26px}.prompt-meaning{font-size:clamp(23px,3vw,32px);font-weight:650;line-height:1.45;margin-bottom:24px;word-break:break-word}.answer-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.answer-grid label{display:block;margin-bottom:7px;font-size:13px;font-weight:700;color:#617a70}.answer-grid input,.answer-grid textarea{width:100%}.answer-grid .full{grid-column:1/-1}.button{border:0;border-radius:12px;min-height:47px;padding:11px 20px;font-weight:700;font-size:14px}.button.primary{background:#20745b;color:#fff}.button.primary:hover{background:#155f49}.button.secondary{background:#eaf2ee;color:#266b56}.button.secondary:hover{background:#dcebe3}.button.ghost{background:#fff;color:#27735b;border:1px solid #c9ded4}.button.ghost:hover{background:#f1f8f4}.button.warn{background:#fff0e9;color:#a85034}.action-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.answer-panel{border-top:1px solid #e9f0ed;padding-top:19px;margin-top:22px}.answer-panel h3{font-size:14px;color:#70897d;margin:0 0 12px}.correct-line{font-size:19px;font-weight:700;line-height:1.6;word-break:break-word}.pronunciation{font-size:14px;color:#779186;font-weight:400;margin-left:8px}.feedback{font-size:13px;margin-top:11px;color:#a75138}.feedback.ok{color:#30785d}.rating-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.rating-row .button{flex:1;min-width:98px}.empty-state{text-align:center;padding:48px 18px;color:#7a8d84}.empty-icon{width:58px;height:58px;margin:0 auto 16px;border-radius:19px;background:#e6f3ec;display:grid;place-items:center;font-size:28px;color:#2b8265}.empty-state h2{color:#244b3d;font-size:20px;margin:0 0 8px}.empty-state p{margin:0 0 18px}.field-label{display:block;font-size:14px;font-weight:750;color:#375c4e;margin-bottom:9px}.input-row{display:flex;gap:11px}.input-row input{flex:1;min-width:0;font-size:17px}.help-text{font-size:13px;color:#93a39d;margin:10px 0 0}.lookup-result{margin-top:25px}.lookup-head{border-top:1px solid #e9efec;padding-top:23px;display:flex;align-items:baseline;gap:13px;flex-wrap:wrap}.lookup-head strong{font-size:27px}.lookup-head span{color:#82978d;font-size:14px}.lookup-result h3{font-size:13px;color:#627e71;margin:22px 0 12px}.senses{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.sense{display:flex;align-items:flex-start;gap:10px;border:1px solid #e2ebe6;border-radius:12px;padding:12px 13px;line-height:1.45;font-size:14px}.sense:has(input:checked){border-color:#74ae93;background:#f1faf4}.sense input{width:18px;height:18px;min-height:0;margin:2px 0 0;accent-color:#20745b;flex:none}.notice{padding:14px 15px;border-radius:12px;background:#f0f5f2;color:#637d70;font-size:14px}.notice.error{background:#fff1eb;color:#a5533c}.term-list{margin-top:20px}.term-item{display:flex;justify-content:space-between;gap:18px;border-top:1px solid #e9efec;padding:17px 0}.term-item:first-child{border-top:0}.term-main{min-width:0}.term-main strong{display:inline-block;font-size:19px;word-break:break-word}.term-main small{color:#98a69e;margin-left:10px}.term-main p{color:#62776d;margin:7px 0 0;font-size:14px;line-height:1.5}.term-actions{display:flex;align-items:flex-start;gap:8px;flex:none}.small-button{background:#f0f6f2;border:0;border-radius:9px;color:#39775e;padding:8px 10px;font-size:12px}.term-item.suspended{opacity:.52}.setting-row{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:13px 0 24px;border-bottom:1px solid #ebf0ed}.setting-row+.setting-row{padding-top:24px}.setting-row .field-label{margin-bottom:5px}.setting-row p{margin:0;color:#8a9b93;font-size:13px}.setting-row input{width:94px;text-align:center;font-size:20px;font-weight:700;color:#1e6b54}.settings-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:25px}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#254f3e;color:#fff;border-radius:12px;padding:12px 19px;box-shadow:0 14px 32px #0002;z-index:10;max-width:calc(100vw - 32px);text-align:center}.login-screen{min-height:100vh;display:grid;place-items:center;padding:20px}.login-card{width:min(420px,100%);background:#fff;border:1px solid #e2ece7;border-radius:24px;padding:36px;box-shadow:0 18px 60px #284d3914}.login-card h1{margin:16px 0 3px;font-size:30px}.login-card p{color:#8a9e93}.login-card label{display:block;font-weight:700;margin:26px 0 8px}.login-card input,.login-card button{width:100%}.login-card button{margin-top:18px}.form-error{color:#b44936!important;min-height:18px;font-size:13px}.audio-play{font-size:17px;padding-inline:24px}
.meaning-editor{padding:17px 0 4px}.meaning-editor .senses{max-width:660px}.term-main{flex:1}
.voice-setting{align-items:flex-start}.voice-setting>div:first-child{flex:1;min-width:0}.voice-controls{display:flex;align-items:center;gap:9px;min-width:0}.voice-controls select{min-height:47px;max-width:270px;width:270px;padding:9px 12px;border:1px solid #d9e3df;border-radius:12px;background:#fff;color:#203833;font:inherit}.voice-controls select:focus{outline:2px solid #2a8972}.voice-controls .button{white-space:nowrap}
@media(max-width:800px){.topbar{height:70px;padding:0 20px}.layout{display:block}.nav{position:fixed;z-index:5;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(4,1fr);gap:0;padding:7px max(8px,env(safe-area-inset-right)) calc(7px + env(safe-area-inset-bottom)) max(8px,env(safe-area-inset-left));border-right:0;border-top:1px solid #dfeae4;background:#fff;box-shadow:0 -5px 18px #17382509}.nav-item{display:flex;flex-direction:column;gap:4px;text-align:center;align-items:center;justify-content:center;padding:6px 2px;font-size:11px;min-height:52px}.nav-icon{font-size:20px}.nav-foot{display:none}main{padding:28px 20px calc(110px + env(safe-area-inset-bottom))}.page-heading h1{font-size:28px}.review-card{padding:24px;min-height:330px}.content-card{padding:24px}}
@media(max-width:520px){.topbar-side{gap:9px}.topbar-side #today-label{font-size:11px}.stats-grid{gap:7px}.stat-card{padding:13px;min-height:88px;border-radius:13px}.stat-card span{font-size:11px}.stat-card strong{font-size:26px;margin-top:8px}main{padding-inline:14px}.review-card,.content-card{padding:19px;border-radius:17px}.senses{grid-template-columns:1fr}.answer-grid{grid-template-columns:1fr}.input-row{flex-direction:column}.input-row .button{width:100%}.term-item{display:block}.term-actions{margin-top:12px}.setting-row{align-items:flex-start}.setting-row input{width:76px}.rating-row{display:grid;grid-template-columns:1fr 1fr}.rating-row .button{min-width:0}}
@media(max-width:700px){.voice-setting{display:block}.voice-controls{margin-top:12px}.voice-controls select{width:min(100%,320px);max-width:none;flex:1}}