:root{--bg:#fdf8ee;--bg2:#f3f9ec;--card:#fff;--ink:#3d3225;--ink-soft:#8a7a63;--green:#58a34c;--green-deep:#3e7d34;--green-soft:#e3f2dd;--pink:#ef7fa8;--pink-soft:#fde7f0;--gold:#e8a13c;--gold-soft:#fdf0d9;--soil:#e8dcc8;--radius:22px;--shadow:0 6px 20px #5d401c14;--mizige-line:#cd645a2e;--mizige-border:#cd645a52}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{background:linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%);min-height:100vh;color:var(--ink);margin:0;padding:0;font-family:PingFang SC,Hiragino Sans GB,Microsoft YaHei,system-ui,sans-serif;font-size:17px;line-height:1.6}main.page{max-width:720px;margin:0 auto;padding:16px 16px 110px}.topbar{justify-content:space-between;align-items:center;padding:8px 4px 14px;display:flex}.brand{letter-spacing:1px;font-size:24px;font-weight:800}.brand small{color:var(--ink-soft);letter-spacing:2px;font-size:12px;font-weight:400;display:block}.profile-chip{background:var(--card);border:2px solid var(--green-soft);cursor:pointer;box-shadow:var(--shadow);color:var(--ink);border-radius:999px;align-items:center;gap:8px;padding:6px 14px 6px 8px;font-size:15px;font-weight:700;text-decoration:none;display:flex}.profile-chip .avatar{color:#fff;border-radius:50%;justify-content:center;align-items:center;width:34px;height:34px;font-size:20px;display:flex}.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px;padding:20px}.card-title{color:var(--ink-soft);letter-spacing:1px;margin:0 0 10px;font-size:15px;font-weight:700}.today-hero{color:#fff;border-radius:var(--radius);text-align:center;background:linear-gradient(135deg,#6fbf5f 0%,#4c9440 100%);margin-bottom:16px;padding:24px 20px;box-shadow:0 10px 24px #4c94404d}.today-hero h2{margin:0 0 4px;font-size:20px}.today-hero p{opacity:.92;margin:0 0 16px;font-size:15px}.btn{cursor:pointer;text-align:center;border:none;border-radius:999px;padding:14px 34px;font-family:inherit;font-size:18px;font-weight:800;text-decoration:none;transition:transform .12s;display:inline-block}.btn:active{transform:scale(.96)}.btn-white{color:var(--green-deep);background:#fff;box-shadow:0 4px 12px #00000026}.btn-green{background:var(--green);color:#fff;box-shadow:0 4px 12px #58a34c59}.btn-pink{background:var(--pink);color:#fff}.btn-ghost{background:var(--green-soft);color:var(--green-deep);padding:10px 22px;font-size:15px}.btn-row{justify-content:center;gap:12px;margin-top:14px;display:flex}.btn-row .btn{flex:1}.stats{grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:16px;display:grid}.stat{background:var(--card);box-shadow:var(--shadow);text-align:center;border-radius:18px;padding:14px 8px}.stat .n{font-size:26px;font-weight:800}.stat .l{color:var(--ink-soft);font-size:12px}.progress-track{background:var(--soil);border-radius:999px;height:12px;margin-top:4px;overflow:hidden}.progress-fill{background:linear-gradient(90deg, var(--green), #8fd07f);border-radius:999px;height:100%;transition:width .5s}.garden{grid-template-columns:repeat(auto-fill,minmax(46px,1fr));gap:6px;display:grid}.plot{aspect-ratio:1;cursor:pointer;border:2px solid #0000;border-radius:12px;justify-content:center;align-items:center;padding:0;font-family:inherit;font-size:19px;font-weight:600;transition:transform .1s;display:flex}.plot:active{transform:scale(.92)}.plot-fresh{color:#b7a98d;background:#f4ecdc}.plot-learning{background:var(--green-soft);color:var(--green-deep);border-color:#bfe3b6}.plot-mastered{background:var(--pink-soft);color:#c2527f;border-color:#f6c3d8}.plot-due{box-shadow:0 0 0 2px var(--gold)}.legend{color:var(--ink-soft);flex-wrap:wrap;gap:14px;margin:10px 2px 0;font-size:13px;display:flex}.legend i{vertical-align:-2px;border-radius:5px;width:14px;height:14px;margin-right:5px;display:inline-block}.study-wrap{flex-direction:column;justify-content:center;min-height:70vh;display:flex}.study-progress{text-align:center;color:var(--ink-soft);margin-bottom:10px;font-size:14px}.char-card{background:var(--card);box-shadow:var(--shadow);text-align:center;border-radius:28px;padding:36px 20px 28px}.char-big{margin:6px 0;font-size:120px;font-weight:700;line-height:1.2}.mizige{aspect-ratio:1;border:2px solid var(--mizige-border);background:linear-gradient(to right, transparent calc(50% - 1px), var(--mizige-line) calc(50% - 1px), var(--mizige-line) calc(50% + 1px), transparent calc(50% + 1px)), linear-gradient(to bottom, transparent calc(50% - 1px), var(--mizige-line) calc(50% - 1px), var(--mizige-line) calc(50% + 1px), transparent calc(50% + 1px)), linear-gradient(to bottom right, transparent calc(50% - 1px), var(--mizige-line) calc(50% - 1px), var(--mizige-line) calc(50% + 1px), transparent calc(50% + 1px)), linear-gradient(to bottom left, transparent calc(50% - 1px), var(--mizige-line) calc(50% - 1px), var(--mizige-line) calc(50% + 1px), transparent calc(50% + 1px));border-radius:18px;justify-content:center;align-items:center;width:min(230px,58vw);margin:10px auto;display:flex}.mizige-sm{border:2px solid var(--mizige-border);background:linear-gradient(to right, transparent calc(50% - .75px), var(--mizige-line) calc(50% - .75px), var(--mizige-line) calc(50% + .75px), transparent calc(50% + .75px)), linear-gradient(to bottom, transparent calc(50% - .75px), var(--mizige-line) calc(50% - .75px), var(--mizige-line) calc(50% + .75px), transparent calc(50% + .75px)), linear-gradient(to bottom right, transparent calc(50% - .75px), var(--mizige-line) calc(50% - .75px), var(--mizige-line) calc(50% + .75px), transparent calc(50% + .75px)), linear-gradient(to bottom left, transparent calc(50% - .75px), var(--mizige-line) calc(50% - .75px), var(--mizige-line) calc(50% + .75px), transparent calc(50% + .75px)), #fff}.char-pinyin{color:var(--green-deep);letter-spacing:2px;font-size:30px;font-weight:700}.char-word{color:var(--ink-soft);margin-top:6px;font-size:20px}.char-word b{color:var(--ink)}.tag{border-radius:999px;margin-bottom:8px;padding:4px 14px;font-size:13px;font-weight:700;display:inline-block}.tag-learn{background:var(--green-soft);color:var(--green-deep)}.tag-review{background:var(--gold-soft);color:#b07a24}.tag-flower{background:var(--pink-soft);color:#c2527f}.hint-box{margin-top:12px;animation:.25s pop}@keyframes pop{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}.speak-btn{background:var(--green-soft);color:var(--green-deep);cursor:pointer;border:none;border-radius:999px;margin:4px;padding:10px 20px;font-family:inherit;font-size:16px;font-weight:700}.speak-btn:active{transform:scale(.95)}.listen-options{grid-template-columns:1fr 1fr;gap:12px;max-width:340px;margin:16px auto 4px;display:grid}.option-btn{border:3px solid var(--green-soft);cursor:pointer;color:var(--ink);background:#fff;border-radius:20px;padding:14px 0;font-family:inherit;font-size:56px;font-weight:700;transition:transform 80ms}.option-btn:active{border-color:var(--green);background:var(--green-soft);transform:scale(.94)}.field{margin-bottom:14px}.field label{color:var(--ink-soft);margin-bottom:6px;font-size:14px;font-weight:700;display:block}.input{border:2px solid var(--soil);width:100%;color:var(--ink);background:#fff;border-radius:14px;padding:12px 14px;font-family:inherit;font-size:17px}.input:focus{border-color:var(--green);outline:none}.pick-row{flex-wrap:wrap;gap:8px;display:flex}.pick{cursor:pointer;background:#f4ecdc;border:3px solid #0000;border-radius:50%;justify-content:center;align-items:center;width:48px;height:48px;padding:0;font-size:24px;display:flex}.pick.on{border-color:var(--green);box-shadow:0 0 0 2px var(--green-soft)}.profile-row{background:var(--card);box-shadow:var(--shadow);border-radius:18px;align-items:center;gap:12px;margin-bottom:10px;padding:14px 16px;display:flex}.profile-row .avatar{color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:48px;height:48px;font-size:26px;display:flex}.profile-row .info{flex:1}.profile-row .info b{font-size:17px}.profile-row .info small{color:var(--ink-soft);font-size:13px;display:block}.mini-btn{cursor:pointer;background:var(--green-soft);color:var(--green-deep);border:none;border-radius:999px;padding:8px 16px;font-family:inherit;font-size:14px;font-weight:700}.mini-btn.danger{color:#c0392b;background:#fde7e7}.mini-btn.on{background:var(--green);color:#fff}.tabbar{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:8px 8px calc(8px + env(safe-area-inset-bottom));z-index:50;background:#fffffff5;border-top:1px solid #eee2cd;display:flex;position:fixed;bottom:0;left:0;right:0}.tabbar a{text-align:center;color:var(--ink-soft);border-radius:12px;flex:1;padding:6px 0;font-size:12px;font-weight:600;text-decoration:none}.tabbar a .t-icon{font-size:22px;display:block}.tabbar a.active{color:var(--green-deep);background:var(--green-soft)}.modal-mask{z-index:100;background:#3d322573;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{text-align:center;background:#fff;border-radius:24px;width:100%;max-width:380px;padding:28px 24px;animation:.25s pop;box-shadow:0 20px 60px #0003}.modal .char-big{font-size:84px}.notice{background:var(--gold-soft);color:#8a6420;border-radius:14px;margin-bottom:14px;padding:12px 14px;font-size:14px}.notice.green{background:var(--green-soft);color:var(--green-deep)}.empty{text-align:center;color:var(--ink-soft);padding:30px 10px;font-size:15px}.done-emoji{font-size:72px;animation:.4s pop}.topbar-right{align-items:center;gap:10px;display:flex}.login-btn{color:var(--green-deep);background:var(--green-soft);border-radius:999px;padding:8px 14px;font-size:14px;font-weight:700;text-decoration:none}.user-chip{align-items:center;gap:6px;display:flex}.user-sync{background:var(--green-soft);cursor:pointer;border:none;border-radius:999px;width:34px;height:34px;font-size:16px}.user-email{background:var(--green);color:#fff;cursor:pointer;border:none;border-radius:999px;width:34px;height:34px;font-size:16px;font-weight:800}.auth-card{text-align:center;padding:36px 24px}.auth-emoji{margin-bottom:8px;font-size:56px}.auth-card h1{margin:8px 0;font-size:24px}.auth-card .muted{color:var(--ink-soft);margin-bottom:24px;font-size:15px}.auth-google{width:100%;padding:14px;font-size:18px}.auth-google b{color:var(--green-deep);background:#fff;border-radius:50%;width:28px;height:28px;margin-right:8px;line-height:28px;display:inline-block}.auth-error{color:#c0392b;margin-top:12px;font-size:14px}