:root{--bg: #f5f6f8;--card: #ffffff;--glass: rgba(255, 255, 255, .62);--glass-border: rgba(255, 255, 255, .75);--text: #1f2937;--muted: #6b7280;--primary: #2563eb;--primary-dark: #1d4ed8;--border: rgba(31, 41, 55, .08);--danger: #dc2626;--ok: #16a34a;--sidebar-w: 228px;--font-main: "Times New Roman", "KaiTi", "楷体", "STKaiti", "STKaiti SC", "DFKai-SB", serif;font-family:var(--font-main)}*{box-sizing:border-box}body{margin:0;color:var(--text);font-size:17px;background:radial-gradient(900px 520px at 8% -8%,rgba(191,219,254,.55),transparent 60%),radial-gradient(820px 480px at 105% 12%,rgba(221,214,254,.5),transparent 60%),radial-gradient(760px 560px at 60% 115%,rgba(187,247,208,.4),transparent 60%),linear-gradient(180deg,#f7f8fb,#f2f4f8);background-attachment:fixed}h1,h2,h3{margin:0 0 12px}a{color:var(--primary);text-decoration:none}p{line-height:1.7}.muted{color:var(--muted);font-size:15px}.page-center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.main{flex:1;min-width:0;width:100%;max-width:calc(var(--sidebar-w) + 1000px);margin:28px auto 64px;padding:0 24px}.shell{display:flex;min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:var(--sidebar-w);z-index:20;display:flex;flex-direction:column;gap:8px;padding:22px 16px 18px;background:radial-gradient(130% 55% at 20% 0%,#fffdf5d9,#fffdf500 55%),radial-gradient(110% 45% at 100% 100%,#c49e6438,#c49e6400 60%),radial-gradient(90% 40% at 0% 90%,#fffaee80,#fffaee00 55%),linear-gradient(168deg,#fbf5e6,#f7eed7 48%,#f0e3c4);border-right:1px solid rgba(178,148,96,.28);box-shadow:6px 0 24px #785a2817,inset -1px 0 #ffffff8c,inset 0 -1px #ffffff59}.logo{display:flex;align-items:center;font-weight:700;font-size:26px;padding:0 8px 18px;color:#5c4a28;letter-spacing:1px}.logo .ch,.auth-title .ch{display:inline-block}.logo:hover .ch,.auth-title:hover .ch{animation:letterJump .9s ease-in-out infinite}@keyframes letterJump{0%,60%,to{transform:translateY(0)}25%{transform:translateY(-9px) rotate(-2deg)}45%{transform:translateY(0)}}.side-nav{display:flex;flex-direction:column;gap:4px}.side-nav a{display:block;padding:11px 14px;border-radius:12px;color:#7a6844;font-weight:500;font-size:17px;transition:background .18s,color .18s,transform .18s}.side-nav a:hover{background:#a884461f;color:#4c3d20;transform:translate(2px)}.side-nav a.active{background:linear-gradient(135deg,#2563ebeb,#3b82f6d9);color:#fff;font-weight:600;box-shadow:0 4px 14px #2563eb59}.btn-logout{margin-top:auto;width:100%;background:#dc262614;border:1px solid rgba(220,38,38,.28);color:var(--danger);font-weight:500;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transition:background .18s,box-shadow .18s}.btn-logout:hover:not(:disabled){background:#dc26262b;box-shadow:0 4px 14px #dc26262e}.card{background:var(--glass);backdrop-filter:blur(16px) saturate(1.4);-webkit-backdrop-filter:blur(16px) saturate(1.4);border:1px solid var(--glass-border);border-radius:14px;box-shadow:0 8px 28px #1f293712;padding:20px;margin-bottom:16px}.btn{border:1px solid transparent;border-radius:8px;padding:8px 16px;font-size:16px;cursor:pointer;transition:all .15s}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-dark)}.btn-ghost{background:transparent;border-color:var(--border);color:var(--text)}.btn-ghost:hover:not(:disabled){background:var(--bg)}.btn-block{width:100%}.btn-lg{padding:12px 28px;font-size:18px}.auth-card{width:400px;max-width:100%}.auth-title{text-align:center;font-size:30px;letter-spacing:1px;cursor:default}.auth-sub{text-align:center;color:var(--muted);font-size:15px;margin-bottom:20px}.seg{display:inline-flex;background:#1f29370f;border:1px solid rgba(255,255,255,.5);border-radius:10px;padding:3px;gap:2px;margin-bottom:16px}.seg-btn{border:none;background:transparent;padding:7px 18px;border-radius:8px;cursor:pointer;color:var(--muted);font-size:16px;transition:background .18s,color .18s,box-shadow .18s}.seg-btn:hover:not(.active):not(:disabled){color:var(--text)}.seg-btn.active{background:#ffffffeb;color:var(--text);font-weight:600;box-shadow:0 1px 3px #0000001a}.seg-btn:disabled{cursor:wait;opacity:.6}.field{display:block;margin-bottom:14px}.field span{display:block;font-size:15px;color:var(--muted);margin-bottom:6px}.field input,.search{width:100%;border:1px solid var(--border);border-radius:8px;padding:10px 12px;font-size:17px;outline:none}.field input:focus,.search:focus{border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1f}.alert{border-radius:8px;padding:10px 14px;font-size:16px;margin-bottom:12px}.alert-error{background:#fef2f2;color:var(--danger);border:1px solid #fecaca}.filter-bar{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-bottom:20px}.filter-bar .seg{margin-bottom:0}.filter-group{display:flex;align-items:center;gap:8px}.filter-label{font-size:15px;color:var(--muted);font-weight:500;white-space:nowrap}.filter-bar .seg-cat .seg-btn.active{background:#7c3aed;color:#fff;box-shadow:0 2px 6px #7c3aed59}.search{width:220px}.bank-layout{display:grid;grid-template-columns:84px 1fr;gap:16px;align-items:start}.year-rail{position:sticky;top:20px;display:flex;flex-direction:column;gap:8px;max-height:calc(100vh - 120px);overflow-y:auto;padding:12px 8px;border-radius:14px;background:#ffffff8c;backdrop-filter:blur(12px) saturate(1.3);-webkit-backdrop-filter:blur(12px) saturate(1.3);border:1px solid var(--glass-border);box-shadow:0 6px 20px #1f29370f;scrollbar-width:thin;scrollbar-color:rgba(120,90,40,.35) transparent}.year-rail::-webkit-scrollbar{width:5px}.year-rail::-webkit-scrollbar-thumb{background:#785a284d;border-radius:999px}.year-btn{border:none;cursor:pointer;padding:9px 4px;border-radius:10px;font-family:inherit;font-size:16px;color:#7a6844;background:transparent;transition:background .16s,color .16s,box-shadow .16s,transform .16s}.year-btn:hover{background:#a8844624;color:#4c3d20;transform:translate(2px)}.year-btn.active{background:linear-gradient(160deg,#b98a3e,#a2752f);color:#fff;font-weight:600;box-shadow:0 3px 10px #b28a3e66}.module-year-chip{display:inline-block;margin-left:10px;vertical-align:2px;font-size:13px;font-weight:600;padding:2px 10px;border-radius:999px;background:#ffffffbf;color:inherit;border:1px solid rgba(255,255,255,.9)}.module-wrap{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start}.module-panel{border-radius:16px;padding:18px 16px 14px;backdrop-filter:blur(14px) saturate(1.3);-webkit-backdrop-filter:blur(14px) saturate(1.3);box-shadow:0 8px 28px #1f293712}.module-writing{background:linear-gradient(180deg,#e0eefcd1,#ebf3fd99);border:1px solid rgba(147,183,230,.45)}.module-translation{background:linear-gradient(180deg,#def2e7d1,#e9f6ee99);border:1px solid rgba(140,196,166,.45)}.module-head{display:flex;justify-content:space-between;align-items:center;padding:0 4px 12px}.module-title{font-weight:700;font-size:21px}.module-writing .module-title{color:#3b6cb7}.module-translation .module-title{color:#3d8a5f}.module-count{font-size:14px;color:var(--muted);background:#fff9;padding:2px 12px;border-radius:999px;border:1px solid rgba(255,255,255,.8)}.module-panel .grid{grid-template-columns:1fr;gap:12px}.module-panel .card{background:#ffffffc7;margin-bottom:0}.module-panel .pager{margin-top:14px}@media (max-width: 980px){.module-wrap,.bank-layout{grid-template-columns:1fr}.year-rail{position:static;flex-direction:row;max-height:none;overflow-x:auto;overflow-y:hidden;padding:8px 10px}.year-btn{padding:7px 14px;white-space:nowrap}.year-btn:hover{transform:none}}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px;transition:opacity .18s;min-height:120px}.grid.is-loading{opacity:.45;pointer-events:none}@keyframes cardIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}.grid:not(.is-loading) .q-card{animation:cardIn .28s ease both}.grid:not(.is-loading) .q-card:nth-child(2){animation-delay:.04s}.grid:not(.is-loading) .q-card:nth-child(3){animation-delay:.08s}.grid:not(.is-loading) .q-card:nth-child(4){animation-delay:.12s}.grid:not(.is-loading) .q-card:nth-child(n+5){animation-delay:.16s}.q-card{cursor:pointer;transition:box-shadow .15s,transform .15s}.q-card:hover{box-shadow:0 6px 20px #00000014;transform:translateY(-2px)}.q-tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px}.tag{font-size:14px;padding:2px 8px;border-radius:999px}.tag-writing{background:#eff6ff;color:var(--primary)}.tag-translation{background:#f0fdf4;color:var(--ok)}.tag-real{background:#fef3c7;color:#b45309}.tag-orig{background:#f3e8ff;color:#7c3aed}.tag-plain{background:var(--bg);color:var(--muted)}.q-title{font-weight:600;margin-bottom:6px}.q-theme{color:var(--muted);font-size:15px;margin-bottom:10px}.q-go{color:var(--primary);font-size:15px;font-weight:500}.pager{display:flex;align-items:center;justify-content:center;gap:16px;margin-top:20px}.empty{text-align:center;color:var(--muted);padding:48px 0}.practice-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:16px}.timer{font-size:28px;font-weight:700;font-variant-numeric:tabular-nums;background:var(--glass);backdrop-filter:blur(12px) saturate(1.4);-webkit-backdrop-filter:blur(12px) saturate(1.4);border:1px solid var(--glass-border);padding:8px 18px;border-radius:10px;box-shadow:0 4px 16px #1f29370f}.timer.warn{color:#d97706;border-color:#fcd34d}.timer.timeout{color:var(--danger);border-color:#fecaca}.prompt-card .prompt-text{white-space:pre-wrap;background:var(--bg);padding:14px;border-radius:8px;font-size:17px}.start-card{text-align:center;padding:36px}.editor{width:100%;min-height:380px;border:1px solid var(--glass-border);border-radius:12px;padding:18px;font-size:18px;line-height:1.8;font-family:var(--font-main);resize:vertical;outline:none;background:#ffffffb8;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 4px 16px #1f29370d}.editor:focus{border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1f}.practice-foot{display:flex;justify-content:space-between;align-items:center;margin-top:14px}.word-count{color:var(--muted);font-size:16px}.word-count b{color:var(--text);font-size:18px}.word-count.warn b{color:#d97706}.scoring-card{text-align:center;padding:48px 40px;max-width:520px}.spinner{width:42px;height:42px;border:4px solid var(--border);border-top-color:var(--primary);border-radius:50%;margin:0 auto 20px;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.back-link{font-size:15px}.report-title{margin-top:8px}.report-top{margin-bottom:16px}.score-hero{display:flex;gap:28px;align-items:center}.score-info{flex:1}.band-badge{display:inline-block;font-weight:700;font-size:17px;padding:4px 14px;border-radius:999px;margin-bottom:10px;color:#fff}.band-14{background:#16a34a}.band-11{background:#65a30d}.band-8{background:#d97706}.band-5{background:#dc2626}.band-2{background:#b91c1c}.band-reason{margin:0 0 12px}.dims div{margin-bottom:6px;font-size:16px;line-height:1.6}.dims b{display:inline-block;min-width:44px;color:var(--muted);font-weight:600}.report-section{padding:0;overflow:hidden}.section-head{width:100%;display:flex;justify-content:space-between;align-items:center;border:none;background:transparent;padding:16px 20px;font-size:17px;font-weight:600;cursor:pointer}.section-head:hover{background:var(--bg)}.caret{color:var(--muted)}.section-body{padding:0 20px 18px}.correction{border:1px solid var(--border);border-radius:10px;padding:12px 14px;margin-bottom:10px}.correction.major{border-left:4px solid var(--danger)}.correction.minor{border-left:4px solid #d97706}.corr-line{margin-bottom:8px;font-size:15px;color:var(--muted)}.sev{font-size:14px;padding:1px 8px;border-radius:999px;color:#fff}.sev.major{background:var(--danger)}.sev.minor{background:#d97706}.corr-orig{color:var(--danger);background:#fef2f2;padding:8px 10px;border-radius:6px;margin-bottom:6px;line-height:1.6}.corr-rev{color:var(--ok);background:#f0fdf4;padding:8px 10px;border-radius:6px;line-height:1.6}.plain-list{margin:0;padding-left:20px;line-height:1.9}.answer-box{white-space:pre-wrap;background:var(--bg);padding:14px;border-radius:8px;line-height:1.8;margin-top:10px;font-family:var(--font-main)}.my-answer{font-size:17px}.analysis-box pre{white-space:pre-wrap;font-family:inherit;background:var(--bg);padding:12px;border-radius:8px;line-height:1.7;font-size:15px;margin:6px 0 14px}.analysis-box b{color:var(--primary)}.stat-cards{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-bottom:16px}.feed-submit .feed-textarea{width:100%;min-height:180px;border:1px solid var(--border);border-radius:8px;padding:12px;font-size:17px;line-height:1.7;font-family:var(--font-main);resize:vertical;outline:none}.feed-submit .feed-textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1f}.btn-sm{padding:4px 10px;font-size:15px}.status-badge{font-size:14px;padding:2px 10px;border-radius:999px;white-space:nowrap}.status-badge.done{background:#f0fdf4;color:var(--ok)}.status-badge.failed{background:#fef2f2;color:var(--danger)}.status-badge.analyzing{background:#eff6ff;color:var(--primary);animation:pulse 1.4s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.45}}.struct-item{border-left:3px solid var(--primary);background:var(--bg);border-radius:0 8px 8px 0;padding:10px 14px;margin-bottom:10px}.struct-item b{color:var(--primary)}.pattern-card{border:1px solid var(--border);border-radius:10px;padding:14px 16px;margin-bottom:12px}.pattern-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.pattern-name{font-size:14px;font-weight:600;color:#7c3aed;background:#f3e8ff;padding:2px 10px;border-radius:999px}.pattern-text{font-family:var(--font-main);font-size:19px;font-weight:600;background:var(--bg);border-radius:8px;padding:10px 14px;margin-bottom:10px}.source-quote{font-size:15px;color:var(--muted);font-style:italic;border-left:3px solid var(--border);padding-left:10px}.example-box{background:#f0fdf4;border-radius:8px;padding:10px 14px;line-height:1.7;font-size:16px}.stat{text-align:center;margin-bottom:0}.stat-num{font-size:28px;font-weight:700;color:var(--primary)}.stat div:last-child{color:var(--muted);font-size:15px}.trend-label{font-size:15px;color:var(--muted);margin:10px 0 4px}.trend-svg{width:100%}.table{width:100%;border-collapse:collapse;font-size:16px}.table th{text-align:left;color:var(--muted);font-weight:500;padding:8px 10px;border-bottom:1px solid var(--border)}.table td{padding:10px;border-bottom:1px solid var(--border)}.cell-title{max-width:300px}@media (max-width: 720px){.stat-cards{grid-template-columns:repeat(2,1fr)}.score-hero,.practice-head,.shell{flex-direction:column}.sidebar{position:sticky;inset:auto;width:auto;flex-direction:row;align-items:center;gap:4px;padding:10px 14px;border-right:none;border-bottom:1px solid rgba(178,148,96,.28)}.logo{padding:0 10px 0 0;font-size:20px}.side-nav{flex-direction:row;flex:1;gap:2px}.side-nav a{padding:8px 10px;font-size:16px}.side-nav a:hover{transform:none}.btn-logout{margin-top:0;margin-left:6px;width:auto;padding:6px 14px}.main{margin:16px auto 48px;padding:0 14px}}.daily-page{display:flex;flex-direction:column;gap:16px}.daily-head-row{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px}.daily-nav{display:flex;align-items:center;gap:8px}.daily-date{padding:7px 10px;border:1px solid rgba(168,132,70,.35);border-radius:10px;background:#fffcf5cc;font-family:inherit;font-size:15px;color:#5c4a28}.daily-tags{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:12px}.tag{display:inline-block;padding:4px 12px;border-radius:999px;font-size:14px;font-weight:500}.tag-chapter{background:#6082bb24;color:#3d5a91}.tag-section{background:#8c6ec821;color:#6b4fa3}.tag-theme{background:#c88c3c24;color:#9a6b1f}.tag-use{background:#5aa06e26;color:#3d7a52}.daily-words{margin-left:auto;font-size:14px}.daily-title{margin:0 0 14px;font-size:26px;color:#4c3d20}.daily-title-en{font-size:18px;color:#8a744c;font-weight:500}.daily-pass{margin:0;font-size:19px;line-height:1.95;color:#3f3420;font-family:Times New Roman,KaiTi,楷体,STKaiti,serif;text-align:justify;white-space:pre-wrap}.term-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px;margin-top:12px}.term-chip{display:flex;flex-direction:column;gap:2px;padding:10px 14px;border-radius:12px;background:#a8844614;border:1px solid rgba(168,132,70,.18)}.term-en{font-family:Times New Roman,serif;font-weight:600;font-size:17px;color:#4c3d20}.term-zh{font-size:15px;color:#8a744c}.daily-todo{text-align:center}@media (max-width: 720px){.daily-title{font-size:22px}.daily-pass{font-size:17px}}.tr-part-head{margin-top:4px}.tr-part-head h3{margin:0 0 6px;color:#4c3d20}.tr-part-head p{margin:0 0 12px}.tr-card{border-left:4px solid rgba(168,132,70,.45)}.tr-no{display:inline-block;padding:3px 12px;border-radius:999px;margin-bottom:8px;background:#6082bb24;color:#3d5a91;font-size:14px;font-weight:600}.tr-zh{margin:0 0 6px;font-size:22px;line-height:1.8;color:#3f3420;font-family:KaiTi,楷体,STKaiti,serif;font-weight:700}.tr-hint{margin:0 0 12px;font-size:14px}.tr-input{width:100%;min-height:110px;padding:12px 14px;border-radius:12px;border:1px solid rgba(168,132,70,.35);background:#fffdf8e6;font-family:Times New Roman,serif;font-size:18px;line-height:1.7;color:#3f3420;resize:vertical;box-sizing:border-box}.tr-input:focus{outline:none;border-color:#a88446b3}.tr-loading{display:flex;align-items:center;gap:10px;margin-top:14px;color:#8a744c;font-size:15px}.tr-spinner{width:16px;height:16px;border-radius:50%;border:2px solid rgba(168,132,70,.25);border-top-color:#a8844a;animation:trSpin 1s linear infinite}@keyframes trSpin{to{transform:rotate(360deg)}}.tr-report{margin-top:18px;padding-top:16px;border-top:1px dashed rgba(168,132,70,.35)}.tr-score-hero{display:flex;align-items:center;gap:22px;flex-wrap:wrap}.tr-score b{font-size:46px;color:#4c3d20;font-family:Times New Roman,serif}.tr-score span{font-size:18px;color:#8a744c}.tr-band{display:flex;flex-direction:column;gap:4px}.tr-band-label{margin:0;font-size:14px;color:#8a744c;max-width:480px}.tr-comment{margin:14px 0 0;padding:12px 16px;border-radius:12px;background:#a8844614;border:1px solid rgba(168,132,70,.18);font-size:16px;line-height:1.8;color:#4c3d20}.tr-sec{margin-top:16px}.tr-sec h4{margin:0 0 8px;font-size:16px;color:#6b5836}.tr-sec ul{margin:0;padding-left:22px}.tr-sec li{font-size:15.5px;line-height:1.8;color:#4c3d20}.tr-issue{padding:10px 14px;margin-bottom:8px;border-radius:12px;background:#c85a460d;border:1px solid rgba(200,90,70,.14)}.tr-issue-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.tr-original{font-family:Times New Roman,serif;color:#a04a35;text-decoration:line-through;font-size:15.5px}.tr-arrow{color:#a8844a}.tr-suggestion{font-family:Times New Roman,serif;color:#3d7a52;font-weight:600;font-size:15.5px}.tr-explain{margin:8px 0 0;font-size:15px;line-height:1.8;color:#5c4a28}.tr-structure{margin:0;font-size:15.5px;line-height:1.85;color:#4c3d20}.tr-answers{display:grid;grid-template-columns:1fr 1fr;gap:12px}.tr-answers h4{margin-bottom:6px}.tr-optimized,.tr-reference{margin:0;padding:12px 14px;border-radius:12px;font-size:16px;line-height:1.8;font-family:Times New Roman,serif;white-space:pre-wrap}.tr-optimized{background:#5aa06e1a;border:1px solid rgba(90,160,110,.22);color:#2f6644}.tr-reference{background:#6082bb14;border:1px solid rgba(96,130,187,.18);color:#3d5a91}.daily-term-hint{margin:12px 0 0;font-size:14px}@media (max-width: 720px){.tr-answers{grid-template-columns:1fr}.tr-zh{font-size:19px}}.daily-hidden-note{margin:0;padding:10px 14px;border-radius:10px;background:#a8844612;border:1px dashed rgba(168,132,70,.3);font-size:15px;line-height:1.7;color:#8a744c}.tr-keywords{margin-top:12px;padding-top:10px;border-top:1px dashed rgba(168,132,70,.25)}.tr-kw-label{display:inline-block;font-size:14px;color:#9a6b1f;font-weight:600;margin-bottom:8px}.tr-kw-list{display:flex;flex-wrap:wrap;gap:8px}.tr-kw-chip{display:inline-flex;align-items:baseline;gap:6px;padding:6px 12px;border-radius:999px;background:#c88c3c1a;border:1px solid rgba(200,140,60,.22)}.tr-kw-chip .term-en{font-size:15.5px}.tr-kw-chip .term-zh{font-size:13.5px}