:root{--kid-primary:var(--txbc-7c5cfc,#7c5cfc);--kid-primary-deep:var(--txbc-5b3fd6,#5b3fd6);--kid-accent:var(--txbc-f263a8,#f263a8);--kid-lavender:var(--txbc-ede7ff,#ede7ff);--kid-pink-soft:var(--txbc-fff0f7,#fff0f7);--kid-cream:var(--txbc-fffaf5,#fffaf5);--kid-text:var(--txbc-352b55,#352b55);--kid-text-secondary:var(--txbc-776f91,#776f91);--kid-success:var(--txbc-52c98b,#52c98b);--kid-warning:var(--txbc-ffb84d,#ffb84d);--kid-star:var(--txbc-ffd84d,#ffd84d);--kid-card:var(--txbc-ffffff,#ffffff);--kid-radius-lg:24px;--kid-radius-xl:28px;--kid-shadow:0 8px 28px rgba(91,63,214,0.1);--kid-shadow-card:0 8px 28px rgba(91,63,214,0.12);--kid-max-width:430px;--kid-tap:44px;font-family:Microsoft YaHei,PingFang SC,system-ui,sans-serif;color:var(--kid-text)}*{box-sizing:border-box}body{margin:0;background:var(--txbc-e8e0ff,#e8e0ff)}a,button{font:inherit;-webkit-tap-highlight-color:transparent}.kid-shell{position:relative;min-height:100dvh;max-width:var(--kid-max-width);margin:0 auto;padding:16px 18px 108px;overflow-x:hidden;background:linear-gradient(180deg,var(--txbc-e7d8ff,#e7d8ff) 0,var(--txbc-f5e4ff,#f5e4ff) 18%,var(--txbc-fff0f8,#fff0f8) 42%,var(--txbc-fffaf5,#fffaf5) 100%)}.sky{inset:0;pointer-events:none;overflow:hidden}.sky,.sky:before{position:absolute}.sky:before{content:"";top:28px;right:32px;width:36px;height:36px;border-radius:50%;background:radial-gradient(circle at 35% 35%,var(--txbc-fff,#fff) 0,var(--txbc-c9b8ff,#c9b8ff) 55%,var(--txbc-9d7afb,#9d7afb) 100%);box-shadow:inset -4px -4px 8px rgba(91,63,214,.2)}.sky:after{content:"☁";position:absolute;top:52px;left:8%;font-size:28px;opacity:.55;color:var(--txbc-fff,#fff);text-shadow:0 2px 8px rgba(124,92,252,.15)}.sky i{position:absolute;color:var(--kid-star);font-style:normal;font-size:10px;opacity:.85}.sky i:first-child{top:18%;left:12%;font-size:12px}.sky i:nth-child(2){top:8%;left:55%;font-size:8px}.sky i:nth-child(3){top:22%;right:18%;font-size:11px}.sky i:nth-child(4){top:38%;left:28%;font-size:9px}.sky i:nth-child(5){top:14%;right:42%;font-size:7px}.mascot{position:relative;flex:none;filter:drop-shadow(0 10px 18px rgba(109,84,170,.28))}.mascot .body{position:absolute;inset:8% 6% 0;border-radius:48% 48% 42% 42%;background:linear-gradient(165deg,var(--txbc-9b6ef0,#9b6ef0) 0,var(--txbc-7c5cfc,#7c5cfc) 45%,var(--txbc-6845d1,#6845d1) 100%)}.mascot .ear{position:absolute;top:-8%;width:28%;height:48%;border-radius:80% 80% 22% 22%;background:linear-gradient(180deg,var(--txbc-8658d4,#8658d4),var(--txbc-6840ae,#6840ae));border:4px solid var(--txbc-5a35a8,#5a35a8);z-index:2}.mascot .ear:after{content:"";position:absolute;inset:18% 22%;border-radius:999px;background:var(--txbc-f3a8d8,#f3a8d8)}.mascot .ear.left{left:10%;transform:rotate(-12deg)}.mascot .ear.right{right:10%;transform:rotate(12deg)}.mascot .face{inset:22% 14% 18%;background:linear-gradient(180deg,var(--txbc-ffe8d4,#ffe8d4),var(--txbc-ffd9be,#ffd9be));z-index:3}.mascot .face,.mascot .face b{position:absolute;border-radius:50%}.mascot .face b{top:32%;width:15%;height:22%;background:var(--txbc-2f244a,#2f244a);border:2.5px solid var(--txbc-fff,#fff)}.mascot .face b:first-child{left:22%}.mascot .face b:nth-child(2){right:22%}.mascot .face em{position:absolute;left:42%;top:58%;width:16%;height:10%;border-radius:0 0 99px 99px;background:var(--txbc-7a3e4a,#7a3e4a)}.mascot .cheek{position:absolute;top:48%;width:14%;height:10%;border-radius:50%;background:rgba(242,99,168,.35)}.mascot .cheek.left{left:12%}.mascot .cheek.right{right:12%}.mascot .star{position:absolute;color:var(--kid-star);font-style:normal;z-index:4;animation:twinkle 2.4s ease-in-out infinite alternate}.mascot .s1{left:-8%;top:8%;font-size:14px}.mascot .s2{right:-6%;bottom:18%;font-size:11px;animation-delay:.6s}.mascot .s3{right:8%;top:-4%;font-size:9px;animation-delay:1.2s}.mascot-reading .body{background:linear-gradient(165deg,var(--txbc-a87cf5,#a87cf5) 0,var(--txbc-7c5cfc,#7c5cfc) 50%,var(--txbc-6b45d4,#6b45d4) 100%)}.mascot-ai .body{background:linear-gradient(165deg,var(--txbc-b088f8,#b088f8) 0,var(--txbc-8b6cf5,#8b6cf5) 100%)}.kid-header{position:relative;z-index:1;display:flex;align-items:center;gap:12px}.avatar{flex:none;width:52px;height:52px;border-radius:50%;background:var(--txbc-fff,#fff);padding:3px;box-shadow:var(--kid-shadow);overflow:hidden;display:grid;place-items:center}.kid-header .greeting{flex:1 1;min-width:0}.kid-header .greeting small{display:block;font-size:11px;color:var(--kid-text-secondary);line-height:1.4}.kid-header .greeting h2{font-size:16px;font-weight:800;margin:2px 0 0;line-height:1.3}.kid-header .greeting h2 span{font-size:12px;font-weight:500;color:var(--kid-text-secondary)}.message{flex:none;margin-left:auto;width:var(--kid-tap);height:var(--kid-tap);display:grid;place-items:center;background:var(--txbc-fff,#fff);border-radius:50%;text-decoration:none;box-shadow:var(--kid-shadow);color:var(--kid-primary);font-size:20px}.hero{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:16px;min-height:148px}.hero-copy{flex:1 1;min-width:0}.hero-copy .eyebrow{display:inline-block;font-size:13px;font-weight:800;color:var(--kid-primary-deep);margin-bottom:4px}.hero-copy h1{font-size:22px;font-weight:800;line-height:1.35;margin:0;color:var(--kid-text)}.hero-mascot{flex:none;position:relative}.progress-card{position:relative;z-index:1;display:flex;gap:16px;align-items:center;background:rgba(255,255,255,.92);padding:16px 18px;border-radius:var(--kid-radius-lg);box-shadow:var(--kid-shadow-card);margin-top:14px}.progress-card strong{display:block;font-size:16px;font-weight:800}.progress-card span{display:block;font-size:12px;color:var(--kid-text-secondary);margin-top:4px;line-height:1.45}.ring{flex:none;width:68px;height:68px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--kid-primary) var(--progress),var(--txbc-ede7ff,#ede7ff) 0);position:relative}.ring:after{content:"";position:absolute;inset:7px;background:var(--txbc-fff,#fff);border-radius:50%}.ring span{font-weight:800;font-size:14px;color:var(--kid-primary-deep)}.category-list,.ring span{position:relative;z-index:1}.category-list{display:grid;grid-gap:12px;gap:12px;margin-top:18px}.category-card{position:relative;width:100%;min-height:88px;border:0;border-radius:var(--kid-radius-lg);padding:14px 16px;display:flex;align-items:center;text-align:left;gap:14px;background:rgba(255,255,255,.95);box-shadow:var(--kid-shadow-card);text-decoration:none;color:inherit;cursor:pointer;transition:transform .18s ease}.category-card:active{transform:scale(.98)}.cat-icon{flex:none;width:52px;height:52px;border-radius:16px;display:grid;place-items:center;font-size:24px}.cat-text{flex:1 1;min-width:0}.cat-text strong{display:block;font-size:16px;font-weight:800}.cat-text small{display:block;font-size:12px;color:var(--kid-text-secondary);margin-top:4px}.points{flex:none;padding:5px 10px;border-radius:999px;background:var(--txbc-fff6d9,#fff6d9);color:var(--txbc-a36d00,#a36d00);font-size:11px;font-weight:700;white-space:nowrap}.points i{font-style:normal;margin-right:1px}.points-compact{font-size:10px;padding:4px 8px}.arrow{flex:none;color:var(--txbc-b8a8d8,#b8a8d8);font-size:24px;font-weight:300;line-height:1}.tabs{position:fixed;z-index:30;left:50%;bottom:0;transform:translateX(-50%);width:min(var(--kid-max-width),100%);height:78px;padding:6px 8px max(6px,env(safe-area-inset-bottom));display:flex;justify-content:space-around;align-items:flex-start;background:rgba(255,255,255,.94);box-shadow:0 -4px 24px rgba(96,70,162,.12);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.tabs a{flex:1 1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;min-height:var(--kid-tap);color:var(--txbc-9a92b0,#9a92b0);text-decoration:none;font-size:10px;font-weight:600;transition:color .15s}.tabs a i{display:grid;place-items:center;width:26px;height:26px;font-style:normal}.tabs a i svg{width:22px;height:22px}.tabs a.active{color:var(--kid-primary);font-weight:800}.tabs a.active i{transform:scale(1.08)}.page-title{position:relative;z-index:1;min-height:52px;display:flex;align-items:center;gap:10px}.page-title h1{flex:1 1;font-size:20px;font-weight:800;margin:0;text-align:center}.page-title .back{flex:none;width:var(--kid-tap);height:var(--kid-tap);display:grid;place-items:center;text-decoration:none;font-size:28px;color:var(--kid-text);line-height:1}.page-title 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rgba(91,63,214,.06)}.ask-modes{position:relative;z-index:1;display:flex;justify-content:center;gap:10px;margin:12px 0 16px;flex-wrap:wrap}.ask-modes button{min-width:96px;min-height:var(--kid-tap);border:0;border-radius:999px;background:var(--txbc-fff,#fff);box-shadow:var(--kid-shadow);padding:10px 16px;font-size:13px;font-weight:700;color:var(--kid-text);white-space:nowrap;transition:background .15s,color .15s,transform .15s}.ask-modes button.active{background:var(--kid-primary);color:var(--txbc-fff,#fff);box-shadow:0 6px 20px rgba(124,92,252,.35)}.ask-modes button:active{transform:scale(.97)}.ai-media-picker{position:relative;z-index:2;display:grid;grid-gap:6px;gap:6px;margin:-4px auto 74px;width:min(100%,330px);padding:12px 16px;border:2px dashed var(--txbc-cdbfff,#cdbfff);border-radius:18px;background:rgba(255,255,255,.92);color:var(--kid-primary-deep);text-align:center;font-size:13px;font-weight:800}.ai-media-picker input{width:100%;font-size:12px;color:var(--kid-text-secondary)}.ai-media-picker small{color:var(--kid-text-secondary);font-weight:500}.bubbles{position:relative;z-index:1;text-align:left;display:grid;grid-gap:12px;gap:12px;margin:12px 0 80px;flex:1 1}.bubble{max-width:88%;border-radius:20px;padding:14px 16px;background:var(--txbc-fff,#fff);box-shadow:var(--kid-shadow);font-size:14px;line-height:1.55}.bubble.me{margin-left:auto;background:var(--kid-primary);color:var(--txbc-fff,#fff);border-radius:20px 20px 6px 20px}.bubble.ai{border-radius:20px 20px 20px 6px}.composer{position:fixed;z-index:31;bottom:86px;left:50%;transform:translateX(-50%);width:min(calc(var(--kid-max-width) - 36px),calc(100% - 36px));display:flex;align-items:center;gap:8px;background:var(--txbc-fff,#fff);padding:6px 6px 6px 16px;border-radius:999px;box-shadow:0 8px 30px rgba(91,63,214,.18)}.composer input{flex:1 1;border:0;outline:0;padding:10px 0;font-size:14px;background:transparent}.composer button{flex:none;width:var(--kid-tap);height:var(--kid-tap);border:0;border-radius:50%;background:var(--kid-primary);color:var(--txbc-fff,#fff);font-size:18px;display:grid;place-items:center}.composer button:disabled{opacity:.5}.ai-steps{margin:10px 0 0;padding-left:18px;font-size:13px}.ai-steps li{margin:5px 0}.encourage{font-size:12px;color:var(--kid-accent);margin-top:10px;font-style:italic}.conv-list{position:relative;z-index:1;margin:12px 0;display:grid;grid-gap:8px;gap:8px}.conv-list a{display:block;background:var(--txbc-fff,#fff);border-radius:16px;padding:14px;text-decoration:none;color:var(--kid-text);box-shadow:var(--kid-shadow);font-weight:700}.conv-list a small{display:block;color:var(--kid-text-secondary);font-size:11px;font-weight:400;margin-top:4px}.habits-page .weekly-card{position:relative;z-index:1;background:rgba(255,255,255,.95);border-radius:var(--kid-radius-lg);padding:18px;box-shadow:var(--kid-shadow-card);margin-top:14px}.weekly-card h3{font-size:14px;font-weight:800;margin:0 0 14px}.week-strip{display:flex;justify-content:space-between;gap:4px}.week-day{flex:1 1;text-align:center}.week-day span{display:block;font-size:10px;color:var(--kid-text-secondary);margin-bottom:6px}.week-day i{display:grid;place-items:center;width:36px;height:36px;margin:0 auto;border-radius:50%;font-style:normal;font-size:16px;background:var(--txbc-f1ebff,#f1ebff);color:var(--txbc-c4b8e0,#c4b8e0)}.week-day.done i{background:var(--txbc-fff6d9,#fff6d9);color:var(--kid-star);box-shadow:0 2px 8px rgba(255,184,77,.3)}.habit-row{display:flex;align-items:center;gap:12px}.habit-row .habit-icon{flex:none;width:44px;height:44px;border-radius:14px;background:var(--txbc-eef4ff,#eef4ff);display:grid;place-items:center;font-size:20px}.habit-row .habit-info{flex:1 1;min-width:0}.habit-row .habit-info h3{margin:0;font-size:15px}.habit-row .habit-info p{margin:3px 0 0;font-size:11px;color:var(--kid-text-secondary)}.habit-row .habit-done,.habit-row button{flex:none;min-width:72px;min-height:36px;border:0;border-radius:999px;padding:8px 14px;font-size:13px;font-weight:700}.habit-row button{background:var(--kid-primary);color:var(--txbc-fff,#fff)}.habit-row .habit-done{background:var(--txbc-e8faf2,#e8faf2);color:var(--kid-success);text-align:center}.streak-section{position:relative;z-index:1;margin-top:18px;background:rgba(255,255,255,.95);border-radius:var(--kid-radius-lg);padding:18px;box-shadow:var(--kid-shadow-card)}.streak-section h3{font-size:14px;font-weight:800;margin:0 0 14px}.streak-badges{display:flex;gap:12px;justify-content:center}.streak-badge{flex:1 1;max-width:96px;text-align:center;padding:12px 8px;border-radius:16px;background:var(--txbc-f0edf5,#f0edf5);opacity:.55}.streak-badge.active{opacity:1;background:linear-gradient(180deg,var(--txbc-fff6d9,#fff6d9),var(--txbc-ffe8a8,#ffe8a8));box-shadow:0 4px 14px rgba(255,184,77,.25)}.streak-badge strong{display:block;font-size:20px;color:var(--kid-primary-deep)}.streak-badge small{display:block;font-size:10px;color:var(--kid-text-secondary);margin-top:4px}.points-hero{position:relative;z-index:1;padding:22px 20px;border-radius:var(--kid-radius-lg);background:linear-gradient(135deg,var(--txbc-fff,#fff) 0,var(--txbc-ffeafa,#ffeafa) 100%);box-shadow:var(--kid-shadow-card);margin-top:14px}.points-hero-top{display:flex;align-items:flex-start;justify-content:space-between}.points-hero-label{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--kid-text-secondary)}.points-hero-label i{font-style:normal;color:var(--kid-star);font-size:18px}.points-hero strong{display:block;font-size:44px;font-weight:800;color:var(--kid-primary-deep);line-height:1.1;margin-top:6px}.points-hero small{display:block;color:var(--kid-text-secondary);font-size:12px;margin-top:6px}.points-detail-link{flex:none;font-size:11px;color:var(--kid-primary);text-decoration:none;padding:6px 10px;background:rgba(124,92,252,.1);border-radius:999px;font-weight:700}.segmented{position:relative;z-index:1;display:flex;margin:18px 0 14px;background:var(--txbc-f3eafb,#f3eafb);padding:4px;border-radius:999px}.segmented button{flex:1 1;min-height:36px;border:0;padding:8px 4px;background:transparent;border-radius:999px;font-size:13px;font-weight:700;color:var(--kid-text-secondary)}.segmented .active{background:var(--txbc-fff,#fff);color:var(--kid-accent);box-shadow:0 4px 14px rgba(122,85,151,.15)}.reward-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;grid-gap:12px;gap:12px}.reward-card{background:var(--txbc-fff,#fff);border-radius:var(--kid-radius-lg);padding:14px;box-shadow:var(--kid-shadow-card);display:flex;flex-direction:column;align-items:center;text-align:center}.reward-card .reward-img{width:100%;aspect-ratio:1;border-radius:16px;background:linear-gradient(180deg,var(--txbc-f5efff,#f5efff),var(--txbc-fff0f8,#fff0f8));display:grid;place-items:center;margin-bottom:10px}.reward-card h3{font-size:13px;font-weight:800;margin:0 0 4px;line-height:1.35}.reward-card p{font-size:10px;color:var(--kid-text-secondary);margin:0 0 10px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.reward-card-footer{width:100%;display:flex;align-items:center;justify-content:space-between;gap:6px;margin-top:auto}.reward-card-footer .price{font-size:12px;font-weight:800;color:var(--kid-primary-deep)}.reward-card-footer button{border:0;border-radius:999px;padding:8px 14px;background:var(--kid-accent);color:var(--txbc-fff,#fff);font-size:12px;font-weight:700;min-height:32px}.reward-card-footer button:disabled{background:var(--txbc-d0cbd8,#d0cbd8)}.subject-hero{position:relative;z-index:1;text-align:center;padding:12px 0 8px}.subject-hero h2{font-size:18px;font-weight:800;margin:10px 0 0}.subject-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;grid-gap:12px;gap:12px;margin-top:16px}.subject-grid article{padding:16px;background:rgba(255,255,255,.95);border-radius:var(--kid-radius-lg);box-shadow:var(--kid-shadow-card)}.subject-grid i{display:grid;width:48px;height:48px;place-items:center;border-radius:15px;background:var(--kid-lavender);font-style:normal;font-size:22px;color:var(--kid-primary)}.subject-grid h3{font-size:15px;margin:10px 0 4px}.subject-grid p{font-size:11px;color:var(--kid-text-secondary);margin:0 0 12px}.primary,.subject-grid button{width:100%;min-height:var(--kid-tap);border:0;border-radius:999px;background:linear-gradient(90deg,var(--kid-primary),var(--txbc-e877bd,#e877bd));color:var(--txbc-fff,#fff);padding:11px;font-weight:700;font-size:14px}.diary-hero{position:relative;z-index:1;text-align:center;padding:8px 0}.diary-add-btn{flex:none;width:var(--kid-tap);height:var(--kid-tap);display:grid;place-items:center;text-decoration:none;font-size:28px;font-weight:300;color:var(--kid-primary);background:var(--txbc-fff,#fff);border-radius:50%;box-shadow:var(--kid-shadow)}.diary-card{background:rgba(255,255,255,.92);border-radius:var(--kid-radius-xl);padding:16px;box-shadow:var(--kid-shadow-card)}.diary-card input,.diary-card textarea{width:100%;border:1px solid var(--txbc-e9dcfb,#e9dcfb);border-radius:16px;padding:13px;margin:6px 0;background:var(--txbc-fffafd,#fffafd);font:inherit}.diary-tools,.moods{display:flex;gap:6px;overflow:auto;margin:10px 0}.diary-tools button,.moods button{border:0;border-radius:999px;background:var(--txbc-f1e7ff,#f1e7ff);padding:9px 14px;white-space:nowrap}.state{position:relative;z-index:1;text-align:center;padding:28px 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