:root{--primary: #2f6fed;--primary-dark: #1f55c7;--bg: #f4f6fa;--card: #ffffff;--text: #1c2333;--muted: #6b7688;--line: #e5e9f0;--danger: #e5484d;--ok: #18a058;--radius: 12px}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}.app-shell{max-width:640px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column}.app-header{position:sticky;top:0;z-index:10;display:flex;justify-content:space-between;align-items:center;padding:14px 16px;background:var(--card);border-bottom:1px solid var(--line)}.brand{font-weight:700;font-size:17px;color:var(--text)}.user-chip{font-size:13px;color:var(--muted)}.header-actions{display:flex;align-items:center;gap:10px;font-size:14px}.header-actions .btn{padding:6px 12px;font-size:13px;margin:0}.logout-btn{border:1px solid var(--line);background:#fff;color:var(--muted);border-radius:8px;padding:5px 10px;font-size:13px;cursor:pointer}.logout-btn:hover{color:var(--danger);border-color:var(--danger)}.guest-banner{display:flex;justify-content:space-between;align-items:center;gap:10px;background:#eef3fe;color:var(--primary);border-radius:var(--radius);padding:10px 14px;margin-bottom:12px;font-size:14px}.app-main{flex:1;padding:14px 14px 84px}.bottom-nav{position:fixed;bottom:0;left:0;right:0;max-width:640px;margin:0 auto;display:flex;background:var(--card);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}.bottom-nav a{flex:1;text-align:center;padding:12px 0;color:var(--muted);font-size:14px}.bottom-nav a.active{color:var(--primary);font-weight:600}.top-nav{position:fixed;bottom:0;left:0;right:0;max-width:640px;margin:0 auto;display:flex;background:var(--card);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}.top-nav a{flex:1;text-align:center;padding:12px 0;color:var(--muted);font-size:14px}.top-nav a.active{color:var(--primary);font-weight:600}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin-bottom:14px}.card-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.card h3{margin:0;font-size:16px}.card h4{margin:0 0 4px;font-size:14px}.card-actions{display:flex;gap:10px;margin-bottom:14px}.card-actions .btn{flex:1;text-align:center}label{display:block;font-size:14px;margin-bottom:12px;color:var(--text)}input,select,textarea{width:100%;margin-top:6px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;font-size:15px;background:#fff;color:var(--text)}textarea{resize:vertical}.btn{display:inline-block;border:1px solid var(--line);background:var(--card);color:var(--text);padding:10px 16px;border-radius:10px;font-size:15px;cursor:pointer}.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn.primary:disabled{opacity:.6}.btn.ghost{background:transparent;color:var(--primary)}.btn.danger{color:var(--danger);border-color:var(--danger);background:transparent}.btn.block{display:block;width:100%;text-align:center;margin-top:10px}.btn.small{padding:6px 10px;font-size:13px}.link{background:none;border:none;color:var(--primary);font-size:14px;cursor:pointer;padding:0}.link.danger{color:var(--danger)}.alert{padding:10px 12px;border-radius:10px;font-size:14px;margin-bottom:12px}.alert.error{background:#fdecec;color:var(--danger)}.alert.success{background:#e8f7ef;color:var(--ok)}.muted{color:var(--muted)}.small{font-size:12px}.center{text-align:center}.disclaimer{color:var(--muted);font-size:12px;margin:12px 0;line-height:1.6}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.auth-card{width:100%;max-width:420px;background:var(--card);border-radius:16px;padding:28px 24px;border:1px solid var(--line);box-shadow:0 8px 30px #1c23330f}.auth-card h1{margin:0 0 6px;font-size:22px}.auth-card .btn{margin-top:6px}.search-row{display:flex;gap:8px;margin-bottom:12px}.search-row input{flex:1;margin-top:0}.filter-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}.filter-row select{flex:1;min-width:120px;margin-top:0}.exercise-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.exercise-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;color:var(--text)}.exercise-card img{width:100%;aspect-ratio:1;object-fit:cover;background:#eef1f6}.exercise-info{padding:10px}.exercise-name{font-weight:600;font-size:14px;line-height:1.3}.badges{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}.badge{background:#eef3fe;color:var(--primary);border-radius:999px;padding:3px 10px;font-size:12px}.detail-gif{width:100%;border-radius:10px;background:#eef1f6}.seg{display:flex;gap:4px}.seg button{border:1px solid var(--line);background:#fff;border-radius:8px;padding:5px 10px;font-size:13px;cursor:pointer}.seg button.active{background:var(--primary);border-color:var(--primary);color:#fff}.steps{margin:0;padding-left:20px;line-height:1.8;font-size:14px}.explain-item{margin-bottom:14px}.explain-item p{margin:4px 0;line-height:1.7;font-size:14px}.qa-list,.qa-item{margin-bottom:12px}.qa-q{font-weight:600;font-size:14px;margin-bottom:4px}.qa-a{background:var(--bg);border-radius:10px;padding:10px 12px;font-size:14px;line-height:1.7}.qa-form{display:flex;gap:8px}.qa-form input{flex:1;margin-top:0}.tabs{display:flex;background:var(--card);border-radius:var(--radius);padding:4px;margin-bottom:14px;border:1px solid var(--line)}.tabs button{flex:1;border:none;background:transparent;padding:9px 0;border-radius:10px;font-size:14px;cursor:pointer;color:var(--muted)}.tabs button.active{background:var(--primary);color:#fff;font-weight:600}.workout-exercise{border:1px solid var(--line);border-radius:10px;padding:12px;margin-bottom:12px}.workout-ex-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.set-row{display:flex;gap:8px;align-items:center;margin-bottom:8px}.set-row input{flex:1;margin-top:0;min-width:0}.set-row.static{justify-content:space-between;font-size:14px;margin-bottom:6px}.set-no{width:56px;color:var(--muted);font-size:13px}.picker-list{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}.picker-item{text-align:left;border:1px solid var(--line);background:#fff;border-radius:10px;padding:10px 12px;font-size:14px;cursor:pointer}.stat-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:14px}.stat-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px}.stat-value{font-size:20px;font-weight:700}.progress-track{background:var(--bg);border:1px solid var(--line);border-radius:999px;height:8px;overflow:hidden}.progress-fill{background:var(--ok);height:100%;border-radius:999px}.body-data-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:14px}.body-data-card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:14px}.body-data-value{font-size:18px;font-weight:700;margin-bottom:4px}.score-box{text-align:center;padding:16px 0}.score-num{font-size:56px;font-weight:800;color:var(--primary)}.plan-list{display:flex;flex-direction:column;gap:12px}.plan-title{margin:0;font-size:20px}.week-title{margin:14px 0 8px;font-size:15px;color:var(--primary)}.week-title-btn{display:flex;justify-content:space-between;align-items:center;width:100%;background:none;border:none;margin:14px 0 8px;padding:0;font-size:15px;color:var(--primary);font-weight:700;cursor:pointer;text-align:left}.week-caret{font-size:13px;color:var(--muted)}.plan-chips{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;margin-bottom:12px}.plan-chip{flex:none;max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;border:1px solid var(--line);background:var(--card);border-radius:999px;padding:7px 14px;font-size:13px;color:var(--muted);cursor:pointer}.plan-chip.active{background:var(--primary);border-color:var(--primary);color:#fff}.plan-day{border:1px solid var(--line);border-radius:10px;padding:12px}.plan-day h3{margin:0 0 8px;font-size:15px}.plan-day h4{margin:0 0 8px;font-size:14px}.plan-ex{display:flex;justify-content:space-between;gap:8px;font-size:14px;padding:4px 0}.plan-ex-name{font-weight:500}.plan-day-head{display:flex;gap:6px;align-items:center;margin-bottom:8px}.plan-day-actions{display:flex;gap:8px;margin-top:8px}.plan-day-head input{margin-top:0}.plan-day-label{width:70px;flex:none}.plan-day-title{flex:1}.plan-edit-ex{display:flex;gap:6px;align-items:center;margin-bottom:6px}.plan-edit-head{display:flex;gap:6px;margin-bottom:4px;font-size:12px;color:var(--muted)}.plan-edit-head .plan-edit-name{flex:2}.plan-edit-head .plan-edit-num{flex:1;text-align:center}.plan-edit-head .plan-edit-del{width:26px}.plan-edit-ex input{margin-top:0;min-width:0;padding:8px 10px}.plan-edit-name{flex:2}.plan-edit-num{flex:1}.day-picker{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}.day-picker label{display:flex;align-items:center;gap:4px;margin:0;padding:6px 12px;border:1px solid var(--line);border-radius:999px;font-size:13px;background:#fff;cursor:pointer}.day-picker label.checked{background:var(--primary);border-color:var(--primary);color:#fff}.day-picker input{width:auto;margin:0}.day-status{font-size:12px;font-weight:600}.day-status.done{color:var(--ok)}.day-status.todo{color:var(--muted)}.session-head{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:10px}.session-progress{color:var(--muted);font-size:14px;margin:0 0 12px}.ex-status{font-size:12px;font-weight:600}.ex-status.done{color:var(--ok)}.ex-status.todo{color:var(--muted)}.set-row.done{opacity:.65}.set-row.failed{background:#fdecec;border-radius:8px;padding:6px 8px}.set-actions{display:flex;gap:6px;flex:none}.set-row.set-head{border-bottom:1px solid var(--line);padding-bottom:4px;margin-bottom:8px}.set-row.set-head span{flex:1;font-size:12px;color:var(--muted)}.set-row.set-head .set-no{flex:none;width:56px}.set-row.set-head .set-actions{flex:none;width:130px}.ex-status.fail{color:var(--danger)}.ex-status.partial{color:#e67e22}.link.strong{font-weight:700;font-size:15px}.set-btn-done{background:#e8f7ef;border-color:var(--ok);color:var(--ok);font-weight:700}.set-btn-fail{background:#fdecec;border-color:var(--danger);color:var(--danger);font-weight:700}.ex-detail{margin:10px 0;border-top:1px solid var(--line);padding-top:10px}.preview-actions{display:flex;gap:8px;margin-top:10px}.prep-table{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-bottom:14px}.prep-row{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1.2fr;gap:6px;padding:10px 12px;font-size:14px;border-bottom:1px solid var(--line);align-items:center}.prep-row:last-child{border-bottom:none}.prep-head{background:var(--bg);font-weight:700;color:var(--muted)}.prep-row input{margin-top:0;min-width:0;padding:6px 8px}.prep-row .prep-name{font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.prep-unmatched{color:var(--danger);font-style:normal;font-size:12px;margin-left:4px}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#1c233373;display:flex;align-items:center;justify-content:center;z-index:50;padding:24px}.modal-box{background:#fff;border-radius:14px;padding:22px 20px;max-width:360px;width:100%;text-align:center;box-shadow:0 12px 40px #0003}.modal-box p{margin:0 0 16px;font-size:15px;line-height:1.6}.modal-box .preview-actions{justify-content:center}.match-warn{background:#fff7e6;border-radius:10px;padding:10px;margin-bottom:10px;font-size:13px}.match-warn p{margin:0 0 8px}.candidate-list{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}.rest-overlay{position:fixed;left:0;right:0;bottom:0;max-width:640px;margin:0 auto;background:var(--card);border-top:1px solid var(--line);padding:16px 16px calc(16px + env(safe-area-inset-bottom));z-index:20;box-shadow:0 -4px 20px #1c233314}.finish-bar{position:fixed;left:0;right:0;bottom:0;max-width:640px;margin:0 auto;background:var(--card);border-top:1px solid var(--line);padding:12px 16px calc(12px + env(safe-area-inset-bottom));z-index:19}.rest-label{text-align:center;color:var(--muted);font-size:14px}.rest-time{text-align:center;font-size:56px;font-weight:800;line-height:1.2;color:var(--primary)}.rest-controls{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:10px}.finish-box{text-align:center;padding:10px 0}.finish-box h3{margin:0 0 6px}.success-actions{display:flex;gap:10px;margin-top:10px}.form-section-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.row-link{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--line);color:var(--text)}.row-link:last-child{border-bottom:none}.row-link>span{color:var(--muted)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.loading{text-align:center;color:var(--muted);padding:30px 0}.empty{text-align:center;color:var(--muted);padding:30px 0;font-size:14px}.feedback-options{display:grid;grid-template-columns:1fr 1fr;gap:10px}.feedback-options .btn{min-height:56px;font-weight:600}.ex-note{padding:2px 0 4px;line-height:1.5}.basis-box{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px}.basis-box h4{margin:0 0 6px;font-size:14px;color:var(--primary)}.basis-box p{margin:0;white-space:pre-line;line-height:1.7}.add-action-box{margin-top:10px}.advice-text{white-space:pre-line;line-height:1.8}.add-action-box .btn{margin-top:6px;margin-right:6px}.add-action-box .btn.block{margin-right:0}@media (min-width: 640px){.exercise-grid{grid-template-columns:repeat(3,1fr)}}