/* 产品级排版系统：统一比例、节奏和图片呈现 */
:root{--ink-strong:#59304a;--ink:#754c62;--ink-soft:#a87890;--surface:#ffffff;--surface-soft:#fff9fc;--line:#f1dce7;--accent:#e96f9f;--shadow:0 12px 30px rgba(140,67,102,.10)}
body{background:linear-gradient(130deg,#fff7fb 0%,#fbf7ff 48%,#f5f9ff 100%);color:var(--ink)}.app-shell{grid-template-columns:246px minmax(0,1fr);background:transparent}.sidebar{position:sticky;top:0;height:100vh;padding:20px 13px 18px;background:rgba(255,248,252,.86);backdrop-filter:blur(18px);border-right:1px solid #f2dbe6;box-shadow:none}.brand{padding:0 6px 14px}.brand-kitty-photo{height:104px;border-radius:18px;box-shadow:0 8px 22px #dc91b12d}.brand h1{font-size:19px;letter-spacing:.035em}.brand p{font-size:11px}.sidebar nav{gap:6px}.nav-group{margin:13px 8px 2px;font-size:11px;letter-spacing:.1em}.nav-item{min-height:45px;padding:8px 10px;border:1px solid transparent;border-radius:14px;background:transparent;box-shadow:none;font-size:15px}.nav-item:hover{background:#fff;transform:none}.nav-item.active{border-color:#f0b0ca;background:linear-gradient(100deg,#fff2f8,#fffafd);box-shadow:inset 3px 0 #e878a6,0 5px 13px #d978a71a}.nav-icon{width:25px;height:25px;margin-right:8px;border-radius:8px}.side-gift{margin-top:10px;padding:10px 11px;border-radius:15px;box-shadow:0 8px 17px #dc789a2d}.side-gift-icon{width:31px;height:31px;border-radius:10px;font-size:18px}.side-gift b{font-size:14px}.stars-box{margin-top:8px;padding:9px 11px;border-radius:15px;background:#fff9de;border-color:#f5d980;box-shadow:none;font-size:13px}.tiny{font-size:10px}
main{max-width:1240px;padding:20px 34px 54px}header{height:64px;padding:0 22px;border:1px solid #ffffffd9;border-radius:18px;background:#ffffffc9;backdrop-filter:blur(14px);box-shadow:0 8px 28px #d9a9bf20}header h2{font-size:25px;letter-spacing:.04em}.score{padding:7px 14px;border-radius:14px;font-size:16px}.voice-picker{padding:7px 10px;border-radius:14px}.learning-panel,.hero{margin-top:18px;padding:30px;border:1px solid #fff;border-radius:26px;background:#ffffffc7;backdrop-filter:blur(10px);box-shadow:var(--shadow)}
.module-hero{min-height:218px;margin-bottom:24px;border-radius:21px;box-shadow:none}.module-hero>div{padding:28px 28px}.module-hero h3{font-size:27px;letter-spacing:.03em}.module-hero p{font-size:15px;line-height:1.7}.module-hero>img{border-radius:0;filter:saturate(.95)}.module-note{font-size:12px}.tabs{gap:8px;margin:2px 0 14px}.tab{padding:7px 14px;border-radius:11px;font-size:14px}.hint{margin:0 0 18px;font-size:15px;line-height:1.6}
.card-grid{gap:14px}.study-card{min-height:205px;border:1px solid var(--line);border-radius:20px;background:linear-gradient(145deg,#fff,#fffafd);box-shadow:0 6px 0 #f9edf2}.study-card:hover{transform:translateY(-3px);box-shadow:0 10px 22px #d69ab724}.char-grid{grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}.char-grid .char{min-height:236px!important;padding:20px 12px 14px}.char-grid .char .big-character{font-size:66px!important}.picture-grid .study-card{min-height:205px}.card-art,.alpha-art,.picture-grid .emoji{width:82px!important;height:82px!important;border-radius:20px!important}.study-card b{margin-top:8px;font-size:24px}.study-card small{font-size:14px}.listen-button{padding:8px 13px}.stroke-btn{padding:4px 13px}
.math-panel{max-width:900px;margin-left:auto;margin-right:auto}.math-progress{max-width:700px;margin:14px auto}.math-visual{max-width:700px;margin:0 auto;min-height:130px;padding:16px;border-radius:22px;background:#fffafd}.math-problem{margin:22px auto;font-size:53px}.answer-row{margin-top:0}.math-nav{margin-top:16px}.math-nav .next-question{padding:8px 15px}.poem{max-width:620px;padding:26px}.poem-lines{font-size:23px!important}.poem-illustration{max-width:390px}.alphabet-grid{gap:14px}.alphabet-card{min-height:235px;border-width:1px;border-radius:21px}.sport-grid,.reward-grid{gap:14px}.sport-card,.reward-card{border-width:1px;border-radius:21px}.sport-art{width:calc(100% - 36px);margin-top:18px;border-radius:14px}
@media(max-width:760px){.app-shell{grid-template-columns:164px minmax(0,1fr)}.sidebar{padding:12px 9px 15px}.brand{padding:0 3px 10px}.brand-kitty-photo{height:82px;border-radius:14px}.brand h1{font-size:15px}.brand p{display:none}.nav-group{margin:11px 5px 2px;font-size:10px}.nav-item{min-height:42px;padding:7px 7px;font-size:14px;border-radius:12px}.nav-icon{width:23px;height:23px;margin-right:6px}.side-gift{padding:8px;border-radius:12px}.side-gift small{font-size:9px}.stars-box{padding:7px 6px;font-size:11px}.tiny{font-size:9px}main{padding:12px 12px 35px;min-width:0}header{height:56px;padding:0 12px;border-radius:15px}header h2{font-size:21px}.voice-picker{padding:5px}.score{padding:6px 9px}.learning-panel,.hero{margin-top:12px;padding:16px 14px;border-radius:21px}.module-hero{margin-bottom:17px;border-radius:18px}.module-hero>div{padding:18px 17px 12px}.module-hero h3{font-size:22px}.module-hero p{font-size:13px}.module-hero>img{width:calc(100% - 28px);margin:0 auto 14px;border-radius:15px}.tabs{gap:6px}.tab{padding:6px 9px;font-size:12px}.hint{font-size:13px}.card-grid{gap:11px}.char-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.char-grid .char{min-height:215px!important;padding:17px 8px 12px}.char-grid .char .big-character{font-size:56px!important}.picture-grid .study-card{min-height:174px}.card-art,.alpha-art,.picture-grid .emoji{width:76px!important;height:76px!important}.study-card b{font-size:21px}.study-card small{font-size:12px}.poem{padding:18px 12px}.poem-lines{font-size:19px!important}.math-progress{font-size:13px}.math-problem{font-size:42px}.math-visual{min-height:110px;padding:12px}.answer-row input{width:90px}.alphabet-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.alphabet-card{min-height:205px}.sport-grid,.reward-grid{grid-template-columns:1fr}.sport-card,.reward-card{min-height:195px}}