:root{--blue: #3aa3ff;--blue-d: #1677cc;--green: #2fb46a;--red: #e5484d;--yellow: #ffd23e;--bg: #f4f7fb;--card: #ffffff;--text: #1c2733;--dim: #7a8a99;--border: #e3eaf2;--radius: 14px}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);font-size:16px;-webkit-tap-highlight-color:transparent}.app{display:flex;flex-direction:column;height:100%}.app-body{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch}.tabbar{display:flex;border-top:1px solid var(--border);background:var(--card);padding-bottom:env(safe-area-inset-bottom)}.tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 0 6px;text-decoration:none;color:var(--dim);font-size:20px}.tabbar a span{font-size:11px}.tabbar a.active{color:var(--blue-d)}.page{max-width:640px;margin:0 auto;padding:14px 14px 32px;display:flex;flex-direction:column;gap:12px}.page-head{display:flex;align-items:center;gap:10px}.page-head h1{font-size:20px;flex:1}.back{font-size:26px;text-decoration:none;color:var(--blue-d);padding:0 6px;line-height:1}section{display:flex;flex-direction:column;gap:8px}.section-head{display:flex;align-items:center;justify-content:space-between;margin-top:8px}.section-head h2{font-size:15px;color:var(--dim);font-weight:600}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px;display:flex;flex-direction:column;gap:8px;text-decoration:none;color:var(--text)}.list{display:flex;flex-direction:column;gap:8px}.week-card:active{background:#eef5ff}.week-title{font-weight:700;font-size:17px}.row{display:flex;align-items:center;gap:8px}.grow{flex:1;min-width:0}.space-between{justify-content:space-between}.center{text-align:center}.center-screen{display:flex;align-items:center;justify-content:center;height:100%}.dim{color:var(--dim)}.small{font-size:13px}.error-text{color:var(--red);font-size:14px}.ok-text{color:var(--green);font-size:14px}.empty{text-align:center;padding:48px 24px;color:var(--dim);display:flex;flex-direction:column;gap:12px;align-items:center}.empty-icon{font-size:48px}.spin{animation:bounce 1.2s ease-in-out infinite}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}input,textarea,select{width:100%;padding:11px 12px;font-size:16px;border:1px solid var(--border);border-radius:10px;background:#fbfdff;color:var(--text)}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--blue)}textarea{resize:vertical;font-family:inherit}.field-label{font-size:13px;color:var(--dim);margin-top:4px}.small-input{font-size:14px;padding:8px 10px}button{font-size:15px;padding:10px 16px;border-radius:10px;border:1px solid transparent;cursor:pointer;font-family:inherit;font-weight:600}button:disabled{opacity:.45;cursor:default}button.primary{background:var(--blue);color:#fff;box-shadow:0 2px #1677cc40}button.primary:active:not(:disabled){transform:translateY(1px)}button.ghost{background:transparent;color:var(--blue-d);border-color:var(--border)}button.ghost.danger,.ghost.danger{color:var(--red)}button.small{font-size:13px;padding:6px 10px}button.block,a.block{width:100%;display:block;text-align:center}a.ghost{color:var(--blue-d);text-decoration:none;padding:10px 16px}.auth-wrap{display:flex;align-items:center;justify-content:center;min-height:100%;padding:20px}.auth-card{width:100%;max-width:380px;background:var(--card);border-radius:18px;border:1px solid var(--border);padding:26px 22px;display:flex;flex-direction:column;gap:12px}.auth-card h1{font-size:24px;text-align:center}.auth-card .sub{text-align:center;margin-top:-6px}.auth-tabs{display:flex;background:var(--bg);border-radius:10px;padding:4px;gap:4px}.auth-tabs button{flex:1;background:transparent;color:var(--dim);padding:8px}.auth-tabs button.active{background:var(--card);color:var(--text);box-shadow:0 1px 3px #00000014}.photo-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}.photo-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:8px;display:flex;flex-direction:column;gap:6px}.photo-item img{width:100%;border-radius:8px;aspect-ratio:3/4;object-fit:cover}.photo-meta{display:flex;flex-wrap:wrap;gap:4px;align-items:center}.word-row{flex-direction:row;align-items:center}.word-row .example{margin-top:2px}.word-edit.flagged{border-color:var(--yellow);background:#fffbeb}.flag-note{font-size:13px;color:#8a6d00;display:flex;flex-wrap:wrap;gap:6px;align-items:center}.manual-add{margin-top:4px}.speak-btn{background:#eaf4ff;border:none;border-radius:50%;width:36px;height:36px;font-size:16px;padding:0;flex-shrink:0}.speak-btn:active{background:#d5eaff}.speak-btn.big{width:auto;height:auto;border-radius:10px;padding:8px 14px;font-size:15px;align-self:flex-start}.speak-btn.huge{width:88px;height:88px;font-size:40px;margin:0 auto;display:block}.progress-label{font-size:14px;color:var(--dim);white-space:nowrap}.progress-bar{flex:1;height:8px;background:var(--border);border-radius:4px;overflow:hidden}.progress-bar>div{height:100%;background:var(--blue);border-radius:4px;transition:width .25s}.passage{gap:10px}.passage-text{font-size:17px;line-height:1.75;white-space:pre-wrap}.passage-text .hl{color:var(--blue-d);font-weight:800}.passage-zh{font-size:14px;line-height:1.7;border-top:1px dashed var(--border);padding-top:8px}.question-card{gap:12px}.q-type{font-size:12px;color:var(--blue-d);background:#eaf4ff;align-self:flex-start;padding:3px 10px;border-radius:20px;font-weight:700}.q-text{font-size:17px;line-height:1.6}.q-text.small{font-size:15px}.q-text.listen{text-align:center;display:flex;flex-direction:column;gap:10px}.target-word{color:var(--blue-d);font-size:19px}.translate-sentence{font-size:17px;line-height:1.6;background:#f8fbff;border-radius:10px;padding:10px 12px}.options{display:flex;flex-direction:column;gap:8px}.option{text-align:left;background:#fbfdff;border:2px solid var(--border);border-radius:12px;padding:12px;font-size:16px;font-weight:500;display:flex;gap:8px;align-items:flex-start}.option.chosen{border-color:var(--blue);background:#eaf4ff}.opt-letter{font-weight:800;color:var(--blue-d);flex-shrink:0}.option.static{cursor:default}.option.static.correct{border-color:var(--green);background:#ecfdf3}.option.static.chosen-wrong{border-color:var(--red);background:#fef2f2}.options.review{gap:6px}.options.review .option{padding:8px 10px;font-size:14px}.quiz-nav{display:flex;gap:10px;margin-top:4px}.quiz-nav button{flex:1;padding:13px}.score-card{align-items:center;padding:22px}.score-big{font-size:44px;font-weight:800}.score-stars{font-size:18px}.result-item.right{border-left:4px solid var(--green)}.result-item.wrong{border-left:4px solid var(--red)}.result-head{display:flex;justify-content:space-between;font-weight:700;font-size:14px}.feedback{font-size:14px;background:#f0f9ff;border-radius:8px;padding:8px 10px}.evidence{font-size:14px;background:#fffbeb;border-left:3px solid var(--yellow);border-radius:6px;padding:8px 10px;font-style:italic}.peek-passage{background:#f8fbff;border:1px dashed var(--border);border-radius:10px;padding:10px 12px}.peek-passage .passage-text{font-size:15px;line-height:1.7}.day-head{font-size:13px;font-weight:700;color:var(--dim);margin-top:6px}.quiz-item{flex-direction:row;align-items:center;gap:8px}.quiz-item.fresh{border-color:var(--blue);background:#f2f9ff;box-shadow:0 0 0 1px var(--blue) inset}.warn-text{color:#c25e00}.stats-table{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.stats-row{display:grid;grid-template-columns:1fr 56px 56px 64px;gap:6px;align-items:center;padding:10px 12px;border-bottom:1px solid var(--border);font-size:14px}.stats-row:last-child{border-bottom:none}.stats-row.head{color:var(--dim);font-size:12px;font-weight:700;background:#fafcff}.stats-row.weak{background:#fff8f0}.stats-row .due{color:#c25e00;font-weight:700}.word-cell{display:flex;align-items:center;gap:8px;min-width:0}.word-cell .speak-btn{width:30px;height:30px;font-size:13px}code{background:#f0f4f8;padding:1px 6px;border-radius:5px;font-size:13px}.type-checks{display:flex;flex-wrap:wrap;gap:8px}.chip{background:#fbfdff;border:2px solid var(--border);border-radius:20px;padding:7px 14px;font-size:14px;color:var(--dim)}.chip.on{border-color:var(--blue);background:#eaf4ff;color:var(--blue-d)}.photo-item img{cursor:zoom-in}.lightbox{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;background:#0a1018eb;display:flex;align-items:center;justify-content:center;cursor:zoom-out}.lightbox img{max-width:100vw;max-height:100vh;object-fit:contain}