:root{--ink:#213731;--muted:#77857e;--accent:#18574c;--accent-soft:#eaf3ee;--red:#b94b43;--line:#e5ebe7;--paper:#fff;--wash:#f5f8f5;--serif:'Songti SC','STSong','Noto Serif CJK SC',serif;--sans:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:var(--sans);color:var(--ink);background:#edf1ed;letter-spacing:0}body{font-size:14px}button,input,select{font:inherit;letter-spacing:0}button,a,input{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer;color:inherit}button:disabled{cursor:default;opacity:.45}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #76b4a3;outline-offset:3px}button{border:0}svg{width:20px;height:20px;stroke-width:1.6;flex-shrink:0}h1,h2,h3,p{margin:0}button[title]{position:relative}button[title]:hover:after{content:attr(title);position:absolute;bottom:calc(100% + 8px);left:50%;transform:translateX(-50%);font:12px var(--sans);white-space:nowrap;background:var(--ink);color:white;padding:6px 8px;border-radius:4px;z-index:20;pointer-events:none}
.shell{max-width:480px;margin:auto;min-height:100svh;background:var(--paper);position:relative;overflow:hidden}.topbar{height:66px;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid transparent;gap:8px}.brand{display:flex;align-items:center;gap:9px;font-family:var(--serif);font-size:19px;font-weight:600}.seal{background:var(--red);color:white;display:grid;place-items:center;width:25px;height:28px;font-family:var(--serif);font-size:17px;border-radius:2px}.top-actions{display:flex;align-items:center;gap:6px}.icon-btn{height:38px;width:38px;flex:0 0 38px;display:inline-flex;align-items:center;justify-content:center;background:transparent;border-radius:6px}.icon-btn:hover{background:var(--accent-soft)}.index-link{color:var(--muted)}.subheader{font-size:15px;display:flex;align-items:center;gap:2px}.hero{padding:24px 26px 0;position:relative}.eyebrow{font-size:10px;color:var(--accent);font-weight:600;letter-spacing:0;display:flex;align-items:center;gap:8px}.eyebrow:before{content:'';width:22px;height:1px;background:currentColor}.hero h1{font-family:var(--serif);font-size:53px;font-weight:600;line-height:1.2;margin:12px 0 9px}.hero .verse{font-family:var(--serif);font-size:15px;color:var(--muted)}.hero-seal{position:absolute;right:30px;top:36px;width:28px;border:1px solid var(--red);padding:5px;color:var(--red);font-family:var(--serif);font-size:13px;writing-mode:vertical-rl;line-height:1.2}.art-strip{height:146px;margin:20px 0 0;position:relative;overflow:hidden;background:#f2f5f0}.art-strip img{width:100%;height:100%;object-fit:cover;object-position:50% 54%;filter:grayscale(.35);opacity:.72}.art-strip:after{content:'';position:absolute;inset:0;border-top:1px solid #ffffff80;border-bottom:1px solid #ffffff80}.art-caption{position:absolute;bottom:12px;right:24px;font-family:var(--serif);font-size:11px;color:#425649;writing-mode:vertical-rl;background:#ffffffb8;padding:7px 3px}.setup{padding:23px 26px 22px}.section-label{display:flex;justify-content:space-between;align-items:center;font-size:13px;font-weight:600;margin-bottom:12px}.section-label small{font-size:11px;color:var(--muted);font-weight:400}.word-line{display:flex;align-items:center;gap:14px}.word-input{width:68px;height:70px;flex:0 0 68px;border:1px solid #becfc6;background:#fff;color:var(--accent);text-align:center;font-family:var(--serif);font-size:38px;border-radius:4px;caret-color:var(--accent)}.popular-words{display:flex;flex-wrap:wrap;gap:8px}.word-btn{background:var(--wash);width:39px;height:32px;font-family:var(--serif);font-size:17px;border-radius:4px}.word-btn.selected{color:var(--accent);background:var(--accent-soft);box-shadow:inset 0 0 0 1px #c9ddd3}.difficulty{margin-top:22px}.segments{display:grid;grid-template-columns:repeat(3,1fr);background:var(--wash);padding:4px;gap:4px;border-radius:6px}.segment{border-radius:4px;background:transparent;padding:9px 3px;display:flex;flex-direction:column;gap:5px;align-items:center;color:var(--muted);font-size:13px}.segment small{font-size:10px}.segment.selected{background:white;color:var(--accent);box-shadow:0 1px 5px #193c2410;font-weight:600}.rule-note{display:flex;gap:14px;color:var(--muted);font-size:11px;margin:12px 0 20px}.rule-note span{display:flex;align-items:center;gap:5px}.rule-note svg{width:13px;height:13px}.primary{display:flex;align-items:center;justify-content:center;gap:9px;width:100%;background:var(--accent);color:white;height:48px;border-radius:5px;font-weight:500;font-size:15px}.primary:hover{filter:brightness(1.07)}.secondary{display:flex;align-items:center;justify-content:center;gap:7px;border:1px solid var(--line);background:white;height:44px;border-radius:5px;font-size:13px}.lookup-shortcut{display:flex;align-items:center;justify-content:space-between;width:100%;background:transparent;padding:16px 0 0;gap:10px;font-size:12px}.lookup-shortcut span{display:flex;align-items:center;gap:8px}.lookup-shortcut small{color:var(--muted);font-size:10px}.bottom-nav{height:65px;display:flex;justify-content:center;border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom);background:var(--paper)}.bottom-nav a{display:flex;align-items:center;justify-content:center;gap:8px;width:50%;color:var(--muted);font-size:12px}.bottom-nav a.active{color:var(--accent)}.bottom-nav svg{width:18px;height:18px}.home-foot{margin-top:0}.input-error{color:var(--red);font-size:11px;min-height:0;margin-top:8px}.input-error:empty{display:none}
.battle-shell{height:100svh;min-height:620px;display:flex;flex-direction:column}.battle-shell .topbar{flex:0 0 66px;border-bottom:1px solid var(--line)}.level-label{color:var(--accent);font-size:11px;background:var(--accent-soft);padding:4px 8px;border-radius:3px}.battle-top{padding:17px 24px 14px;border-bottom:1px solid var(--line);position:relative;flex-shrink:0}.battle-meta{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:var(--muted);margin-bottom:13px}.battle-meta b{color:var(--ink);font-weight:600;font-size:16px}.battle-meta strong{font-size:18px;color:var(--red);font-variant-numeric:tabular-nums;font-weight:500}.progress-track{display:flex;gap:4px}.progress-track i{height:3px;background:var(--line);flex:1;border-radius:1px}.progress-track i.done{background:var(--accent)}.arena{padding-top:12px;display:flex;align-items:center;justify-content:space-between}.player-id{display:flex;align-items:center;gap:9px;font-size:12px;min-width:0}.avatar{width:35px;height:35px;border-radius:50%;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent);font-size:14px;font-family:var(--serif)}.avatar.computer{background:#f6eded;color:var(--red)}.player-id small{font-size:9px;color:var(--muted);display:block;margin-top:3px}.token{display:flex;flex-direction:column;align-items:center;gap:0}.token small{font-size:9px;color:var(--muted)}.token strong{font-family:var(--serif);font-size:52px;line-height:1.15;color:var(--accent);font-weight:500}.history{padding:12px 24px 0;overflow:auto;flex:1;min-height:0;scroll-behavior:smooth}.round-label{display:flex;align-items:center;gap:9px;font-size:9px;color:var(--muted);margin:7px 0 13px}.round-label:after{content:'';height:1px;background:var(--line);flex:1}.poem-message{margin-bottom:18px;position:relative}.speaker{font-size:10px;color:var(--muted);display:flex;align-items:center;gap:5px;margin-bottom:6px}.speaker svg{width:12px;height:12px}.poem-message .poem-text{font-family:var(--serif);font-size:22px;font-weight:400;line-height:1.45;overflow-wrap:anywhere}.poem-source{font-size:10px;color:var(--muted);margin-top:6px;display:flex;align-items:center;gap:5px;flex-wrap:wrap}.correct-icon{color:var(--accent)}.correct-icon svg{width:11px;height:11px}mark{background:transparent;color:var(--red);font-weight:inherit}.your-turn{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--accent);padding:8px 0 14px}.your-turn:before{content:'';width:5px;height:5px;background:var(--accent);border-radius:50%}.composer{padding:13px 24px max(18px,env(safe-area-inset-bottom));border-top:1px solid var(--line);background:var(--paper);flex-shrink:0}.composer-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:11px;gap:5px}.turn-caption{color:var(--accent);font-size:11px}.hint-btn{display:flex;align-items:center;gap:4px;color:var(--muted);font-size:10px;background:transparent;padding:4px 0}.hint-btn svg{width:13px;height:13px}.answer-form{display:flex;gap:8px}.answer-form input{min-width:0;flex:1;height:44px;border:1px solid var(--line);padding:0 12px;background:var(--wash);border-radius:5px;font-size:12px;color:var(--ink)}.send-btn{background:var(--accent);color:white;width:44px;height:44px;border-radius:5px;display:grid;place-items:center}.voice-btn{width:100%;height:44px;margin-top:10px;border:1px solid var(--line);background:white;border-radius:5px;display:flex;align-items:center;justify-content:center;gap:7px;font-size:12px;color:var(--accent)}.voice-btn svg{width:16px;height:16px}.feedback{font-size:11px;line-height:1.6;color:var(--red);padding-bottom:8px}.feedback:empty{display:none}.recording .voice-btn{background:#fff3f1;color:var(--red);border-color:#efc9c3}.wave{display:flex;height:20px;gap:3px;align-items:center}.wave i{width:2px;height:8px;background:currentColor;animation:wave .6s ease-in-out infinite alternate}.wave i:nth-child(2n){height:17px;animation-delay:.2s}.wave i:nth-child(3n){height:12px;animation-delay:.4s}@keyframes wave{to{height:4px}}
.search-head{padding:18px 26px 0}.search-head .eyebrow{margin-bottom:11px}.search-head h1{font-family:var(--serif);font-size:39px;line-height:1.3;font-weight:500}.search-head p{font-family:var(--serif);color:var(--muted);font-size:13px;margin-top:6px}.search-form{margin:22px 26px 14px;display:flex;align-items:center;height:57px;border-bottom:1px solid var(--accent);gap:12px}.search-form>svg{color:var(--accent)}.search-form input{border:0;outline:none;flex:1;min-width:0;font-family:var(--serif);font-size:27px;background:transparent;color:var(--ink);height:100%}.search-form button{height:36px;padding:0 14px;background:var(--accent);color:white;border-radius:3px;font-size:12px}.search-popular{display:flex;align-items:center;gap:6px;padding:0 26px 20px;color:var(--muted);font-size:11px}.search-popular button{width:31px;height:28px;border-radius:3px;background:var(--wash);font-family:var(--serif);font-size:14px}.results-bar{margin:0 26px;display:flex;align-items:center;justify-content:space-between;padding:17px 0 9px;border-top:1px solid var(--line);font-size:11px;color:var(--muted)}.results-bar b{color:var(--ink);font-weight:500}.result-item{margin:0 26px;border-bottom:1px solid var(--line);padding:18px 0;display:flex;align-items:center;gap:8px}.result-open{padding:0;flex:1;text-align:left;background:transparent;min-width:0}.result-line{font-family:var(--serif);font-size:22px;line-height:1.4;display:block;overflow-wrap:anywhere}.result-source{display:block;font-size:10px;margin-top:8px;line-height:1.6;color:var(--muted)}.result-item>.icon-btn{color:#9ba8a1;width:29px;flex-basis:29px}.result-item svg{width:15px;height:15px}.more-btn{display:flex;align-items:center;justify-content:center;width:calc(100% - 52px);margin:19px 26px;height:38px;background:var(--wash);color:var(--muted);gap:5px;font-size:11px;border-radius:4px}.search-start{margin:20px 26px 26px}.empty{padding:40px 26px;text-align:center;color:var(--muted);font-family:var(--serif);font-size:17px}.search-shell .bottom-nav{margin-top:12px}.search-art{display:none}
.modal-backdrop{position:fixed;inset:0;z-index:100;background:#132a245c;display:flex;align-items:flex-end;justify-content:center;padding:16px}.modal{width:100%;max-width:448px;max-height:calc(100svh - 42px);overflow:auto;background:white;border-radius:8px;padding:24px;color:var(--ink);box-shadow:0 18px 60px #102c282b}.modal-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:17px}.modal h2{font-family:var(--serif);font-size:25px;font-weight:500;line-height:1.3}.modal p{font-size:13px;color:var(--muted);line-height:1.8}.modal .primary{margin-top:20px;font-size:13px;height:44px}.modal .secondary{width:100%;margin-top:10px}.modal-poem{font-family:var(--serif);font-size:19px;line-height:2.2;text-align:center;padding:18px 0}.modal-source{text-align:center;color:var(--muted);font-size:12px}.modal-footer{display:flex;gap:10px;margin-top:12px}.modal-footer>*{flex:1}.candidate{display:block;text-align:left;width:100%;background:var(--wash);border:1px solid var(--line);border-radius:5px;padding:13px;margin:10px 0}.candidate .result-line{font-size:20px}.demo-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:17px 0}.demo-grid button{background:var(--wash);padding:12px 6px;border:1px solid var(--line);border-radius:5px;font-size:12px}.result-icon{display:grid;place-items:center;color:var(--accent);margin:12px auto 20px;width:62px;height:62px;background:var(--accent-soft);border-radius:50%}.result-icon svg{width:29px;height:29px}.result-stats{display:flex;justify-content:space-around;margin:24px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:17px 0}.result-stats span{text-align:center;font-size:11px;color:var(--muted)}.result-stats b{display:block;font-family:var(--serif);font-size:26px;color:var(--ink);margin-bottom:5px}.center{text-align:center}#toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%) translateY(8px);padding:11px 17px;background:#193d34;color:white;border-radius:5px;font-size:12px;z-index:200;opacity:0;pointer-events:none;transition:.2s;max-width:calc(100% - 32px);line-height:1.5;text-align:center}#toast.visible{opacity:1;transform:translateX(-50%) translateY(0)}
body[data-theme=b]{--ink:#292c2e;--accent:#a93335;--accent-soft:#f8eeee;--red:#a93335;--muted:#85898a;--line:#e6e7e6;--wash:#f5f5f4}body[data-theme=b] .topbar{border-bottom:1px solid var(--line)}body[data-theme=b] .seal{background:transparent;border:1px solid var(--red);color:var(--red)}body[data-theme=b] .hero{padding-top:24px}body[data-theme=b] .hero h1{font-size:54px}body[data-theme=b] .hero-seal{border:0;right:25px;top:25px;background:var(--red);color:white;padding:8px 5px;font-size:12px}body[data-theme=b] .art-strip{height:125px;margin-top:19px;background:#f2f6f4}body[data-theme=b] .art-strip img{filter:grayscale(1);opacity:.72;object-position:50% 60%}body[data-theme=b] .setup{padding-top:24px}body[data-theme=b] .word-input{border-color:#d5b4b1;color:var(--ink);border-radius:0}body[data-theme=b] .segments{background:white;padding:0;gap:0;border:1px solid var(--line);border-radius:2px}body[data-theme=b] .segment{border-radius:0;padding:12px 0;border-right:1px solid var(--line)}body[data-theme=b] .segment:last-child{border-right:0}body[data-theme=b] .segment.selected{background:#292c2e;color:white;box-shadow:none}body[data-theme=b] .primary{border-radius:2px}body[data-theme=b] .battle-top{background:#292c2e;color:white;border:0;padding:18px 24px 20px}body[data-theme=b] .battle-meta{color:#b9c2bf}body[data-theme=b] .battle-meta b,body[data-theme=b] .battle-meta strong{color:white}body[data-theme=b] .battle-meta strong{color:#ef9f92}body[data-theme=b] .progress-track i{background:#4e5754}body[data-theme=b] .progress-track i.done{background:#d7897d}body[data-theme=b] .arena{padding-top:18px}body[data-theme=b] .avatar{background:#425651;color:#d6ede5;border-radius:3px}body[data-theme=b] .avatar.computer{background:#674947;color:#f4c3b8}body[data-theme=b] .token{flex-direction:row;gap:8px;border:1px solid #6a716d;padding:0 10px}body[data-theme=b] .token strong{font-size:38px;color:white}body[data-theme=b] .token small{writing-mode:vertical-rl;color:#b9c2bf}body[data-theme=b] .player-id small{color:#b9c2bf}body[data-theme=b] .history{padding-top:19px}body[data-theme=b] .round-label{color:var(--red);margin-bottom:12px}body[data-theme=b] .poem-message{padding-left:12px;border-left:2px solid #c3d9d0;margin-bottom:17px}body[data-theme=b] .poem-message.computer{border-color:#dbb2aa}body[data-theme=b] .poem-message .poem-text{font-size:21px}body[data-theme=b] .voice-btn{background:#f2f6f4;color:#446c60;border-color:#d8e3dc}body[data-theme=b] .search-head{border-left:3px solid var(--red);margin:25px 26px 0;padding:0 0 0 15px}body[data-theme=b] .search-head h1{font-size:35px}body[data-theme=b] .search-head .eyebrow:before{display:none}body[data-theme=b] .search-form{background:#f5f7f5;border:1px solid #dce4df;padding:0 12px;margin-top:24px}body[data-theme=b] .search-form input{font-size:26px}body[data-theme=b] .result-item{border-left:2px solid #e7efea;padding:13px 0 13px 12px;margin-top:14px}body[data-theme=b] .result-line{font-size:21px}
body[data-theme=c]{--ink:#24483c;--accent:#237765;--accent-soft:#e7f3eb;--red:#d07061;--muted:#829188;--line:#e3eee6;--wash:#f2f8f3;background:#e7f0ec}body[data-theme=c] .shell{background:#fcfefd}body[data-theme=c] .hero{padding-top:17px}body[data-theme=c] .hero h1{font-size:50px}body[data-theme=c] .hero-seal{border:0;font-size:12px;color:var(--accent);background:#e9f3eb;right:28px;padding:8px 6px;width:29px;top:24px}body[data-theme=c] .art-strip{height:149px;margin-top:18px}body[data-theme=c] .art-strip img{filter:grayscale(.2) sepia(.15);opacity:.73;object-position:50% 63%}body[data-theme=c] .art-strip:after{background:#d3f0d51c}body[data-theme=c] .setup{padding-top:20px}body[data-theme=c] .word-input{background:#eef7ef;border:0;border-radius:6px}body[data-theme=c] .word-btn{background:white;border:1px solid var(--line)}body[data-theme=c] .segments{background:#edf5ef}body[data-theme=c] .segment.selected{background:var(--accent);color:white}body[data-theme=c] .primary{background:var(--accent);border-radius:6px}body[data-theme=c] .battle-top{background:#f0f7f1;border-bottom:0}body[data-theme=c] .arena{flex-direction:row;padding:8px 0 1px}body[data-theme=c] .token strong{font-size:45px}body[data-theme=c] .history{padding-top:16px}body[data-theme=c] .poem-message{width:88%;background:#edf6ef;border-radius:6px;padding:12px 14px;margin-left:auto;margin-bottom:14px}body[data-theme=c] .poem-message.computer{margin-left:0;background:white;border:1px solid var(--line)}body[data-theme=c] .poem-message .poem-text{font-size:21px}body[data-theme=c] .speaker{font-size:9px}body[data-theme=c] .round-label{justify-content:center;margin:2px 0 13px}body[data-theme=c] .round-label:after{display:none}body[data-theme=c] .poem-source{font-size:9px}body[data-theme=c] .voice-btn{height:49px;background:var(--accent);color:white;border-color:var(--accent);font-size:13px}body[data-theme=c] .send-btn{background:#e7f1e9;color:var(--accent)}body[data-theme=c] .composer{background:#fcfefd}body[data-theme=c] .search-head h1{font-size:38px}body[data-theme=c] .search-form{border:1px solid #cee2d4;border-radius:6px;background:#f0f7f1;padding:0 13px}body[data-theme=c] .result-item{padding:17px 12px;margin-top:10px;background:#f2f8f3;border:0;border-radius:6px}body[data-theme=c] .result-line{font-size:21px}body[data-theme=c] .results-bar{padding-top:15px}body[data-theme=c] .more-btn{background:#eaf3ec}
.theme-option{display:grid;grid-template-columns:65px minmax(0,1fr) 22px;align-items:center;gap:14px;padding:15px 0;border-bottom:1px solid var(--line);cursor:pointer}.theme-option:first-child{padding-top:0}.theme-option img{width:65px;height:59px;object-fit:cover;border-radius:4px}.theme-info strong{font-family:var(--serif);font-size:19px;font-weight:500}.theme-swatches{display:flex;gap:5px;margin-top:9px}.theme-swatches i{width:14px;height:14px;border:1px solid #00000012;border-radius:3px}.theme-option input{width:18px;height:18px;accent-color:var(--accent);margin:0}.theme-option:has(input:checked) .theme-info strong{color:var(--accent)}
body[data-theme=c] .poem-message{padding:10px 12px;margin-bottom:12px}body[data-theme=c] .poem-message .poem-text{font-size:20px}
@media(min-width:600px){.shell{margin:28px auto;min-height:844px;box-shadow:0 10px 65px #223c3012;border:1px solid #dde6df;border-radius:8px}.battle-shell{height:844px}.modal-backdrop{align-items:center}.search-shell{min-height:844px}.home-shell{min-height:844px}.home-foot{margin-top:15px}}
@media(max-width:370px){.topbar{padding-left:20px;padding-right:20px}.setup,.composer{padding-left:22px;padding-right:22px}.hero{padding-left:22px}.popular-words{gap:6px}.word-btn{width:36px}.history{padding-left:20px;padding-right:20px}.player-id{gap:6px;font-size:11px}.poem-message .poem-text{font-size:21px}.lookup-shortcut small{font-size:9px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;scroll-behavior:auto!important;transition:none!important}}