:root{--bg: #EDE3D0;--ink: #1F1A12;--gold: #D9A62E;--red: #C73E2E;--blue: #1F4FA3;--cream: #F5EFE0;--dark: #2A2418;--muted: #9A8F78;--card-bg: #F7F0E0;--line: #4A4234}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Noto Sans SC,sans-serif;background:var(--bg);color:var(--ink);min-height:100vh}button{font-family:Noto Sans SC,sans-serif}.mono{font-family:Space Mono,monospace}.muted{color:var(--muted)}.wrap{max-width:1150px;margin:0 auto;padding:28px 32px 80px}.topbar{display:flex;align-items:center;gap:14px;padding:14px 22px;background:var(--ink);color:var(--cream);box-shadow:6px 6px #00000040;position:sticky;top:0;z-index:50;transform:rotate(-.3deg);flex-wrap:wrap}.logo{font-family:Bungee;font-size:20px;color:var(--gold);letter-spacing:1px}.logo small{font-family:Noto Sans SC;font-size:11px;color:var(--muted);margin-left:6px}.nav{display:flex;gap:4px}.nav button{font-family:Noto Sans SC;font-weight:700;font-size:14px;border:2px solid transparent;background:transparent;color:#c9bfa8;padding:8px 12px;cursor:pointer}.nav button:hover{color:var(--cream)}.nav button.active{background:var(--red);color:var(--cream);border-color:var(--red)}.progress-pill{font-family:Space Mono;font-size:12px;background:var(--dark);padding:6px 12px;border:1px solid #4A4234;white-space:nowrap}.review-badge{font-family:Space Mono;font-size:12px;background:var(--gold);color:var(--ink);border:2px solid var(--ink);padding:5px 10px;cursor:pointer;font-weight:700}.review-badge:hover{background:#e8bc45}.auth-box{display:flex;align-items:center;gap:8px;margin-left:auto}.user-chip{font-family:Space Mono;font-size:12px;background:var(--dark);color:var(--gold);border:1px solid #4A4234;padding:6px 12px;cursor:pointer}.auth-link{font-family:Noto Sans SC;font-size:13px;font-weight:700;color:#c9bfa8;background:transparent;border:2px solid transparent;padding:6px 10px;cursor:pointer}.auth-link:hover{color:var(--cream)}.local-mode{font-family:Space Mono;font-size:12px;color:var(--gold);border:1px dashed var(--gold);padding:4px 10px}.onboard-bar{margin-top:16px;display:inline-block;background:var(--gold);border:2px solid var(--ink);padding:8px 14px;font-weight:900;font-size:13.5px;color:var(--ink);box-shadow:4px 4px #00000040}.onboard-flash{animation:guideFlash 1s ease-in-out 3}.ring-dots{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}.ring-dot{width:14px;height:14px;border-radius:50%;border:2px solid var(--ink);cursor:pointer;background:var(--bg);transition:transform .1s}.ring-dot:hover{transform:scale(1.25)}.ring-dot.ok{background:#2e7d32}.ring-dot.learning{background:var(--blue)}.ring-dot.cur{box-shadow:0 0 0 3px #d9a62e8c}.retrieval-pick{margin-top:16px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}.retrieval-pick label{font-weight:900}.retrieval-pick select{padding:8px 10px;border:2px solid var(--ink);background:var(--bg);font-family:Space Mono}.self-explain{margin-top:16px;background:#fff8e7;border:2px dashed var(--blue);padding:12px 16px}.self-explain .se-label{font-weight:900;font-size:13px;margin-bottom:8px}.self-explain input{width:100%;padding:10px 12px;border:2px solid var(--ink);background:var(--bg);font-family:Space Mono;font-size:13px}.self-explain .se-row{display:flex;gap:10px;margin-top:10px;align-items:center}.self-explain .se-ok{font-weight:900;color:#2e7d32;font-family:Space Mono}.verdict-detail{background:var(--ink);color:var(--cream);padding:5px 12px}.explain-lead{margin-top:14px;background:#fff8e7;border-left:6px solid var(--red);padding:12px 16px;font-weight:900;font-size:15px;line-height:1.7}.review-explain{margin-top:12px;background:#e8e1cf;border-left:6px solid var(--blue);padding:10px 14px;font-size:13.5px;line-height:1.7}.review-actions{display:flex;gap:12px;margin-top:12px;flex-wrap:wrap;align-items:center}.review-actions .secondary-link{text-decoration:none}.hero{margin-top:36px;position:relative;padding:10px 0 6px}.hero .tag{display:inline-block;background:var(--red);color:var(--cream);font-family:Bungee;font-size:13px;padding:6px 14px;transform:rotate(-1.5deg);box-shadow:4px 4px #00000040}.hero h1{font-family:"DM Serif Display",serif;font-weight:400;font-size:64px;margin-top:16px;line-height:1.08}.hero h1 .accent{font-family:Bungee;font-size:30px;color:var(--red);display:block;margin-top:4px}.hero .sub{margin-top:16px;font-size:17px;color:var(--line);max-width:640px;line-height:1.7}.hero-btns{margin-top:26px;display:flex;gap:16px;flex-wrap:wrap}.btn{font-weight:900;font-size:16px;padding:14px 28px;border:3px solid var(--ink);cursor:pointer;box-shadow:6px 6px #00000047;transition:transform .1s;background:transparent}.btn:hover{transform:translate(2px,2px);box-shadow:4px 4px #00000047}.btn:disabled{opacity:.55;cursor:not-allowed;box-shadow:none;transform:none;filter:grayscale(.4)}.btn-primary{background:var(--red);color:var(--cream)}.btn-yellow{background:var(--gold);color:var(--ink)}.btn-blue{background:var(--blue);color:var(--cream)}.btn-green{background:#6b7a3b;color:var(--cream)}.small-btn{font-size:13px;padding:8px 16px}.hero-review{margin-top:22px;display:inline-block}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:18px;margin-top:22px}.card{background:var(--card-bg);border:3px solid var(--ink);padding:18px 20px;box-shadow:5px 5px #00000040;cursor:pointer;transition:transform .12s}.card:hover{transform:rotate(-.8deg) translateY(-2px)}.card h3{font-family:Bungee;font-size:17px;color:var(--red)}.card .zh{font-weight:900;font-size:16px;margin-top:4px}.card .desc{font-size:13.5px;color:var(--line);margin-top:8px;line-height:1.6}.card .count{font-family:Space Mono;font-size:12px;color:var(--blue);margin-top:8px;display:inline-block;background:var(--bg);padding:3px 8px;border-left:3px solid var(--blue)}.view-head{margin-top:30px}.view-head h2{font-family:"DM Serif Display",serif;font-weight:400;font-size:40px;margin-top:8px}.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.btn-row .btn{font-size:13px;padding:8px 16px}.type-guide{border:2px solid var(--ink);background:#fff8e7;padding:10px 14px;margin-top:12px}.type-guide .tg-main{font-size:14px;font-weight:700;color:var(--ink)}.type-guide .tg-how{font-size:12px;color:#6b5d44;margin-top:4px;line-height:1.5}.type-guide .tg-modal-hint{display:inline-block;margin-top:6px;font-family:Bungee;font-size:11px;color:var(--ink);background:var(--gold);border:2px solid var(--ink);padding:3px 10px;box-shadow:3px 3px #00000040}.guide-flash{animation:guideFlash 1s ease-in-out 3;border-color:var(--gold)}@keyframes guideFlash{0%,to{background:#fff8e7;box-shadow:none}50%{background:var(--gold);box-shadow:0 0 0 4px #d9a62e59}}.word-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:22px}.word-card{background:var(--card-bg);border:3px solid var(--ink);overflow:hidden;box-shadow:5px 5px #00000040;cursor:pointer}.type-card{cursor:pointer;transition:transform .12s}.type-card:hover{transform:translateY(-2px) rotate(-.5deg)}.word-card .imgwrap{position:relative}.word-card img{width:100%;display:block;min-height:200px;background:var(--bg);object-fit:cover}.word-card .ab{position:absolute;top:10px;left:10px;font-family:Bungee;font-size:11px;background:var(--ink);color:var(--gold);padding:3px 8px}.word-card .wbody{padding:14px 16px 16px}.word-card .wen{font-family:Bungee;font-size:16px;color:var(--ink)}.word-card .wzh{font-weight:900;font-size:15px;color:var(--red);margin-left:8px}.word-card .wex{font-size:13px;color:var(--line);margin-top:8px;line-height:1.6}.word-card .cat{font-family:Space Mono;font-size:11px;color:var(--blue);margin-top:8px;background:var(--bg);display:inline-block;padding:2px 8px}.type-imgs{display:flex;gap:6px}.type-imgs img{flex:1;min-width:0;min-height:160px;max-height:220px;object-fit:cover;background:var(--bg)}.type-card-hint{position:absolute;top:10px;right:10px;font-family:Bungee;font-size:10px;background:var(--red);color:var(--cream);padding:3px 8px;opacity:0;transition:opacity .15s;pointer-events:none;box-shadow:2px 2px #00000040}.type-card:hover .type-card-hint{opacity:1}.type-card-note{font-size:12px;color:#6b5d44;margin-top:6px;line-height:1.5}.empty-note{margin-top:28px;font-size:15px}.type-modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:95;background:#1f1a129e;display:flex;align-items:center;justify-content:center;padding:16px}.type-modal{background:var(--card-bg);border:3.5px solid var(--ink);box-shadow:10px 10px #00000059;max-width:700px;width:100%;max-height:calc(100vh - 32px);overflow-y:auto;padding:24px 26px 26px}.modal-head{display:flex;align-items:flex-start;gap:12px}.modal-head .modal-kind{position:static;flex-shrink:0;font-family:Bungee;font-size:11px;background:var(--red);color:var(--cream);padding:4px 10px;margin-top:2px;box-shadow:3px 3px #00000040}.modal-head h3{font-family:Bungee;font-size:17px;line-height:1.35;flex:1;min-width:0}.modal-x{flex-shrink:0;width:36px;height:36px;font-size:16px;border:3px solid var(--ink);background:var(--bg);cursor:pointer;box-shadow:3px 3px #00000040}.modal-x:hover{background:var(--gold)}.modal-imgs{display:flex;gap:12px;margin-top:18px}.modal-imgs figure{flex:1;min-width:0;background:var(--bg);border:3px solid var(--ink);overflow:hidden}.modal-imgs img{width:100%;display:block;min-height:150px;max-height:300px;object-fit:cover;background:var(--bg)}.modal-imgs.single figure{max-width:460px}.modal-explain{margin-top:18px}.modal-note{background:var(--bg);border-left:6px solid var(--blue);padding:12px 16px;font-size:14px;line-height:1.7}.modal-tip{margin-top:12px;background:#fff8e7;border:2px solid var(--gold);padding:12px 16px;font-size:14px;font-weight:700;line-height:1.7}.modal-actions{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap}.confusable-reveal{margin-top:14px;border:3px solid var(--red);background:var(--card-bg);padding:12px 14px 14px}.cr-label{font-weight:900;font-size:14px}.cr-title{font-family:Bungee;font-size:13px;color:var(--red);margin-top:6px}.cr-imgs{display:flex;gap:8px;margin-top:10px}.cr-imgs img{flex:1;min-width:0;border:2px solid var(--ink);background:var(--bg);min-height:110px;max-height:180px;object-fit:cover}.cr-note{font-size:12.5px;color:var(--line);margin-top:8px;line-height:1.6}.learn{background:var(--card-bg);border:3.5px solid var(--ink);box-shadow:8px 8px #00000047;padding:32px 36px;margin-top:30px}.learn-step{font-family:Bungee;font-size:15px;color:var(--red);letter-spacing:1px}.learn h2{font-family:"DM Serif Display",serif;font-weight:400;font-size:36px;margin-top:10px}.learn h2 .en{font-family:Bungee;font-size:22px;color:var(--blue);display:block;margin-top:2px}.learn .ques{font-size:17px;font-weight:900;margin-top:18px}.learn .prediction{background:var(--bg);border-left:6px solid var(--gold);padding:14px 18px;margin-top:12px;font-size:15px;color:var(--line);line-height:1.7}.base-figure{margin-top:16px;background:var(--bg);border:3px solid var(--ink);overflow:hidden}.base-figure img{width:100%;display:block;min-height:220px;object-fit:cover;background:var(--bg)}.base-figure figcaption,.ab-compare figcaption{font-family:Bungee;font-size:12px;padding:8px 12px;background:var(--ink);color:var(--cream)}.ab-compare{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}.ab-compare figure{background:var(--bg);border:3px solid var(--ink);overflow:hidden}.ab-compare img{width:100%;display:block;min-height:220px;object-fit:cover;background:var(--bg)}.word-detail{margin-top:16px}.prompt-line{font-size:14px;color:var(--line);margin-top:10px}.prompt-line .mono,.mono{font-family:Space Mono;font-size:13px;color:var(--ink)}.explain{margin-top:14px;background:#e8e1cf;border-left:6px solid var(--blue);padding:14px 18px;font-size:15px;line-height:1.7}.guess-options{display:flex;flex-direction:column;gap:10px;margin-top:16px}.guess-opt{font-size:14px;padding:12px 16px;text-align:left;line-height:1.6}.guess-opt.ok{background:#2e7d32;color:var(--cream)}.guess-opt.bad{background:var(--red);color:var(--cream)}.guess-verdict{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:16px;font-family:Space Mono;font-size:15px;font-weight:700}.verdict-ok{background:#2e7d32;color:#fff;padding:6px 14px}.verdict-no{background:var(--red);color:#fff;padding:6px 14px}.verdict-skip{background:var(--blue);color:#fff;padding:6px 14px}.guess-rate{background:var(--bg);border:2px solid var(--blue);color:var(--blue);padding:5px 12px}.explain-big{font-size:22px;font-weight:900;color:var(--red)}.explain-full{font-size:17px;margin-top:12px}.retrieval-chips{margin-top:16px;border:3px solid var(--ink);background:var(--bg);padding:14px 16px}.retrieval-slot{margin-bottom:12px}.retrieval-slot:last-child{margin-bottom:0}.retrieval-slot .slot-title{font-family:Bungee;font-size:13px;color:var(--red);margin-bottom:6px}.retrieval-input{width:100%;padding:12px 16px;margin-top:14px;border:2px solid #4A4234;background:var(--dark);color:var(--cream);font-family:Space Mono;font-size:14px}.retrieval-result{margin-top:18px}.retrieval-reveal{margin-top:16px;background:var(--bg);border:3px solid var(--gold);padding:14px 18px}.retrieval-reveal b{font-size:18px}.review-hero{margin-top:20px}.review-hero h1{font-size:40px}.review-card{background:var(--card-bg);border:3.5px solid var(--ink);box-shadow:8px 8px #00000047;padding:28px 32px;margin-top:28px}.review-progress{font-family:Bungee;font-size:13px;color:var(--blue);letter-spacing:1px}.review-ab{margin-top:12px}.candidate-words{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:16px}.candidate{font-size:13px;padding:10px 14px}.candidate.sel{background:var(--red);color:var(--cream)}.review-feedback{margin-top:16px;padding:14px 18px;border:3px solid var(--ink);background:var(--bg)}.review-feedback.ok{border-color:#2e7d32}.review-feedback.bad{border-color:var(--red)}.review-feedback .small-btn{margin-top:12px}.box-line{margin-top:8px;font-family:Space Mono;font-size:13px;color:var(--line)}.review-empty h2{font-family:"DM Serif Display",serif;font-weight:400;font-size:34px;margin-top:10px}.slot-pick{font-size:14px}.challenge h4{font-family:Bungee;font-size:16px;color:#8fd69a;margin-bottom:12px}.challenge .prompt-box{font-family:Space Mono;font-size:14px;background:var(--dark);padding:12px 16px;line-height:1.7;color:var(--cream);white-space:pre-wrap}.challenge input{width:100%;padding:12px 16px;margin-top:12px;border:2px solid #4A4234;background:var(--dark);color:var(--cream);font-family:Space Mono;font-size:14px}.static-note{margin-top:12px}.static-note-bar{margin-top:16px;background:#c73e2e1f;border:2px dashed var(--red);color:var(--red);padding:10px 14px;font-weight:700;font-size:13px}.workbench{margin-top:30px}.wb-hero{margin-top:0}.wb-hero h1{font-size:40px}.wb-grid{display:grid;grid-template-columns:340px 1fr;gap:22px;margin-top:20px}.wb-slots{background:var(--card-bg);border:3.5px solid var(--ink);padding:20px;box-shadow:6px 6px #00000040}.wb-slot{margin-bottom:14px}.wb-slot h4{font-family:Bungee;font-size:14px;color:var(--red)}.wb-slot .chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}.chip{font-family:Space Mono;font-size:12px;background:var(--bg);border:2px solid var(--ink);padding:4px 10px;cursor:pointer}.chip:hover{background:var(--gold)}.chip.sel{background:var(--red);color:var(--cream)}.wb-main{background:var(--card-bg);border:3.5px solid var(--ink);padding:22px;box-shadow:6px 6px #00000040}.prompt-out{font-family:Space Mono;font-size:14px;background:var(--ink);color:var(--cream);padding:14px 18px;min-height:90px;line-height:1.7;white-space:pre-wrap}.wb-actions{display:flex;gap:12px;margin-top:16px;align-items:center;flex-wrap:wrap}.img2img-zone{margin-top:14px;padding:14px;border:2px dashed #C9BFA8;border-radius:8px;background:#f5efe080;text-align:center}.img2img-zone .upload-hint{font-family:Space Mono;font-size:12px;color:var(--line);margin:10px 0 8px}.img2img-zone .file-input{margin:8px auto;display:block}.upload-btn{font-size:13px;padding:8px 18px}.preview-row{display:flex;align-items:center;justify-content:center;gap:12px;margin-top:10px}.preview-row img{max-width:160px;max-height:120px;border:2px solid var(--ink);border-radius:6px}.remove-btn{font-size:12px;padding:6px 12px}.upload-error{color:var(--red);font-size:13px;margin-top:8px;font-weight:700}.result-img{margin-top:18px;border:3px solid var(--ink);max-width:460px;background:var(--ink)}.result-img img{width:100%;display:block}.result-prompt{font-family:Space Mono;font-size:11px;color:var(--cream);padding:8px 10px;line-height:1.5}.result-img .small-btn{margin:10px}.gen-status{position:fixed;top:0;left:0;right:0;z-index:98;background:var(--ink);color:var(--cream);font-family:Space Mono;font-size:12px;padding:6px 16px;display:flex;align-items:center;gap:10px;box-shadow:0 2px 8px #0000004d}.gen-status .bar{flex:1;height:4px;background:#4a4234;border-radius:2px;overflow:hidden}.gen-status .bar i{display:block;height:100%;width:0;background:var(--red);animation:genPulse 1.2s ease-in-out infinite alternate}.gen-status.ok .bar i{background:#3e8e41;animation:none;width:100%}.gen-status.err .bar i{background:var(--red);animation:none;width:100%}@keyframes genPulse{0%{width:15%}to{width:85%}}.hist-hero{margin-top:20px}.hist-hero h1{font-size:40px}.hist-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin-top:22px}.hist-item{background:var(--card-bg);border:3px solid var(--ink);overflow:hidden;box-shadow:5px 5px #00000040}.hist-imgwrap{position:relative}.hist-item img{width:100%;display:block;min-height:140px;object-fit:cover;background:var(--bg)}.hist-kind{position:absolute;top:8px;left:8px;font-family:Bungee;font-size:10px;background:var(--ink);color:var(--gold);padding:2px 7px}.hist-item .hbody{padding:10px 12px}.hist-item .hp{font-family:Space Mono;font-size:11px;color:var(--line);line-height:1.5}.hist-item .ht{font-family:Space Mono;font-size:10px;color:var(--muted);margin-top:6px}.hist-item .hmodel{font-family:Space Mono;font-size:10px;color:var(--muted);margin-top:2px}.hist-item .small-btn{margin-top:8px}.loading-line{margin-top:28px;font-family:Space Mono;font-size:14px}.load-more-wrap{margin-top:24px;text-align:center}.auth-view{max-width:620px;margin:0 auto}.auth-form{margin-top:18px}.auth-form label{display:block;font-weight:700;font-size:14px;margin-bottom:14px}.auth-form input{width:100%;padding:12px 14px;margin-top:6px;border:3px solid var(--ink);background:var(--bg);font-size:15px;font-family:Space Mono}.auth-error{color:var(--red);font-weight:700;margin-top:4px;font-size:14px}.stat-row{display:flex;gap:16px;margin-top:22px}.stat-card{flex:1;background:var(--bg);border:3px solid var(--ink);padding:18px;text-align:center}.stat-num{display:block;font-family:Bungee;font-size:32px;color:var(--blue)}.stat-label{font-size:13px;color:var(--line);margin-top:4px}.toast{position:fixed;top:56px;left:50%;transform:translate(-50%);z-index:99;padding:10px 22px;font-family:Space Mono;font-size:13px;border-radius:6px;box-shadow:0 4px 14px #00000040;animation:toastIn .25s ease;max-width:90vw}.toast.ok{background:#2e7d32;color:#fff}.toast.warn{background:#b26a00;color:#fff}.toast.err{background:var(--red);color:#fff}@keyframes toastIn{0%{opacity:0;transform:translate(-50%,-8px)}to{opacity:1;transform:translate(-50%)}}footer{margin-top:60px;text-align:center;font-family:Space Mono;font-size:12px;color:var(--muted)}.mode-tag{display:inline-block;margin-left:8px;border:1px solid var(--muted);padding:2px 8px}@media (max-width: 1024px){.word-grid{grid-template-columns:repeat(3,1fr)}}@media (max-width: 768px){.wb-grid{grid-template-columns:repeat(2,1fr)}.word-grid{grid-template-columns:repeat(3,1fr)}}@media (max-width: 640px){.wrap{padding:20px 16px 60px}.topbar{flex-wrap:wrap}.topbar .nav{order:3;width:100%;justify-content:center}.progress-pill,.auth-box{margin-left:auto}}@media (max-width: 375px){.wb-grid>*{min-width:0}.hero h1{font-size:clamp(40px,10vw,64px)}.nav button{font-size:12px;padding:7px 8px}.wb-grid{grid-template-columns:1fr}.ab-compare{grid-template-columns:1fr 1fr;gap:10px}.ab-compare img{min-height:150px}.learn{padding:20px 14px}.word-grid{grid-template-columns:repeat(2,1fr)}.word-card img{min-height:150px}.type-imgs{flex-direction:column}.type-imgs img{min-height:140px;max-height:none}.type-modal{padding:18px 14px 20px;max-height:calc(100vh - 20px)}.modal-imgs{gap:8px}.modal-imgs img{min-height:110px;max-height:200px}.confusable-reveal .cr-imgs{flex-direction:column}.confusable-reveal .cr-imgs img{min-height:120px}.chips,.wb-slot .chips{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px}.hist-grid{grid-template-columns:1fr}}@media (max-width: 320px){.ab-compare{grid-template-columns:1fr}}