:root{--ink:#25424b;--teal:#3d7b82;--cream:#fff8ec;--paper:#fffdf8;--gold:#ffd56a;--coral:#f58b70;--line:#e9ded0;--shadow:0 12px 30px #876d4c21}*{box-sizing:border-box}body{margin:0;background:var(--cream);color:var(--ink);font-family:"Noto Sans TC","Microsoft JhengHei",system-ui,sans-serif;font-size:17px}button{font:inherit;border:0;cursor:pointer;color:inherit}.shell{max-width:1000px;min-height:100vh;margin:auto;padding:24px 20px 48px}.top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}.brand{font-weight:800;font-size:1.2rem}.back{background:#fff;border:1px solid var(--line);border-radius:16px;padding:9px 14px}.avatar{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;background:#ffdd84;font-size:1.9rem;box-shadow:inset 0 -3px #e9b954}.hero{text-align:center;margin:8vh auto 34px}.hero h1{font-size:clamp(2rem,6vw,3.5rem);margin:12px 0}.hero p{color:#587078;margin:0}.profiles{display:grid;grid-template-columns:repeat(2,minmax(0,320px));gap:18px;justify-content:center}.profile{min-height:175px;border-radius:28px;padding:22px;text-align:left;background:var(--paper);box-shadow:var(--shadow);border:2px solid transparent}.profile:hover{border-color:var(--gold)}.profile .big{font-size:3rem;float:right}.profile h2{margin:12px 0 3px}.stars{color:#b57c05;font-weight:800}.home-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}.card{background:var(--paper);border-radius:25px;padding:24px;box-shadow:var(--shadow)}.today{background:linear-gradient(135deg,#fffdf8,#fff0c6)}.eyebrow{font-size:.9rem;font-weight:800;color:var(--teal);letter-spacing:.04em}.card h1,.card h2{margin:.35rem 0}.card p{line-height:1.65;color:#567078}.primary,.secondary,.choice{border-radius:16px;padding:14px 18px;font-weight:800}.primary{background:var(--teal);color:#fff;width:100%;margin-top:12px}.secondary{background:#e7f2f1;color:#28626a;width:100%;margin-top:10px}.word-list{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:15px}.word-chip{padding:10px 3px;background:#f6f0e7;border-radius:12px;font-size:.78rem;text-align:center;overflow:hidden}.word-chip.done{background:#dcefeb}.learn{max-width:760px;margin:auto}.progress{height:10px;background:#eee5d7;border-radius:10px;overflow:hidden;margin:10px 0 20px}.progress i{height:100%;display:block;background:var(--coral);border-radius:inherit}.art{height:min(44vh,370px);border-radius:28px;background:linear-gradient(135deg,#bfe5e2,#ecf6e8);display:grid;place-items:center;overflow:hidden;box-shadow:var(--shadow)}.art img{width:100%;height:100%;object-fit:contain}.art .emoji{font-size:7rem;filter:drop-shadow(0 8px 5px #315a5530)}.word-panel{text-align:center;padding:22px 10px}.english{font-size:clamp(2.2rem,8vw,4rem);font-weight:900;letter-spacing:.02em}.meaning{font-size:1.25rem;margin-top:8px}.sentence{font-size:1.4rem;font-weight:800;margin:24px 0 5px}.translation{font-size:1.1rem;color:#597078}.sound-row{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin:14px 0 4px}.sound{background:#e5f2f0;color:#24616b;border-radius:100px;padding:9px 14px;font-weight:800;font-size:.95rem}.sound.slow{background:#fff0c7;color:#885c0a}.navrow{display:flex;gap:12px;margin-top:24px}.navrow button{flex:1}.quiz{max-width:680px;margin:auto;text-align:center}.quiz-art{font-size:7rem;background:#edf7f5;border-radius:28px;padding:30px;margin:20px 0}.options{display:grid;gap:10px}.choice{background:#fff;border:2px solid var(--line);text-align:left}.choice:hover{border-color:var(--teal)}.choice.good{background:#d8efe5;border-color:#53a477}.choice.bad{background:#ffe1dc;border-color:#e47763}.result{text-align:center;max-width:560px;margin:9vh auto}.result .starburst{font-size:5rem}.milestone{background:#fff0c7;padding:14px;border-radius:15px;color:#80570c;font-weight:800}.small{font-size:.88rem;color:#647b80}.mode-title{margin-bottom:8px}.day-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 18px}.day-tabs button{padding:9px 14px;border-radius:99px;background:#f1ece4}.day-tabs button.selected{background:var(--teal);color:#fff}.word-picker{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px}.pick{background:#fff;padding:16px;border:2px solid #eee3d7;border-radius:16px;text-align:left}.pick span{display:block;font-weight:800;font-size:1.1rem}.pick small{color:#61777b}@media(max-width:620px){.shell{padding:18px 14px 34px}.home-grid{grid-template-columns:1fr}.profiles{gap:12px}.profile{min-height:145px;padding:16px}.word-list{gap:5px}.word-chip{font-size:.66rem}.art{height:34vh}.sentence{margin-top:16px}.sound{font-size:.86rem}.top{margin-bottom:14px}}
:root .art{display:flex;align-items:center;justify-content:center;padding:8px;overflow:visible;min-height:0;}
:root .art img{display:block;flex:0 1 auto;width:auto;height:auto;max-width:100%;max-height:100%;min-width:0;min-height:0;object-fit:contain;border-radius:16px;}
.navrow{flex-wrap:wrap}.navrow button{min-width:130px}
.device-help{max-width:760px;margin:0 auto;padding:0 20px calc(28px + env(safe-area-inset-bottom));font-size:.86rem;line-height:1.7;color:#567078}.device-help .secondary{max-width:380px;display:block;margin:auto}button{min-height:44px;touch-action:manipulation}button:focus-visible{outline:3px solid #b77708;outline-offset:3px}button:disabled{opacity:.65}.profile .big{float:none;display:block}.top .brand{font-size:clamp(.85rem,3.5vw,1.2rem)}.shell{min-height:auto;padding-top:max(18px,env(safe-area-inset-top))}.hero{margin-top:5vh}.profiles{margin-bottom:48px}
@media(max-width:380px){.card{padding:18px}.profile{padding:12px}.navrow{gap:6px}.picture-options{grid-template-columns:1fr}.picture-options .choice{display:flex;align-items:center;gap:14px}.picture-options img{width:50%;height:100px}.word-chip{font-size:.6rem}}
.quiz-picture{height:clamp(180px,35vh,320px);display:flex;align-items:center;justify-content:center;background:#edf7f5;border-radius:24px;padding:8px;margin:16px 0}.quiz-picture img{display:block;width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain;min-width:0;min-height:0}.hint-area{margin:16px 0}.picture-options{grid-template-columns:repeat(3,minmax(0,1fr))}.picture-options .choice{padding:8px;text-align:center;min-width:0}.picture-options img{display:block;width:100%;height:clamp(105px,22vh,180px);object-fit:contain;margin-bottom:8px}.choice:disabled{cursor:default}