:root{--sm-bg: #f6fbf6;--sm-white: #ffffff;--sm-ink: #172033;--sm-muted: #667085;--sm-line: #dde8e0;--sm-green: #2fb86f;--sm-green-deep: #16a35d;--sm-purple: #7a5af8;--sm-orange: #ffaa4d;--sm-blue: #4d96ff;--sm-red: #f04438;--sm-radius-panel: 30px;--sm-radius-card: 22px;--sm-radius-pill: 999px;--sm-shadow-soft: 0 14px 34px rgba(23, 32, 51, .08);--sm-shadow-button: 0 12px 26px rgba(47, 184, 111, .24);--sm-scrollbar-track: rgba(238, 248, 242, .86);--sm-scrollbar-thumb: rgba(200, 223, 208, .96);--sm-scrollbar-thumb-hover: rgba(152, 194, 166, .98);color:var(--sm-ink);background:var(--sm-bg) url(/assets/sproutmate/backgrounds/child_mobile_story_forest.png) center top / cover no-repeat fixed;font-family:Noto Sans CJK SC,PingFang SC,sans-serif}*{box-sizing:border-box;scrollbar-width:thin;scrollbar-color:transparent transparent}*:hover{scrollbar-color:var(--sm-scrollbar-thumb) var(--sm-scrollbar-track)}*::-webkit-scrollbar{width:8px;height:8px}*::-webkit-scrollbar-track{background:transparent;border-radius:999px}*:hover::-webkit-scrollbar-track{background:var(--sm-scrollbar-track)}*::-webkit-scrollbar-thumb{background-color:transparent;background-clip:content-box;border:2px solid transparent;border-radius:999px}*:hover::-webkit-scrollbar-thumb{background-color:var(--sm-scrollbar-thumb)}*::-webkit-scrollbar-thumb:hover{background-color:var(--sm-scrollbar-thumb-hover)}body{margin:0;min-height:100vh}img{display:block;max-width:100%}button,input{font:inherit}button{border:0;border-radius:18px;min-height:50px;padding:15px 22px;background:linear-gradient(180deg,#37c679,#2fb86f);color:var(--sm-white);font-size:1rem;font-weight:800;cursor:pointer;transition:transform .18s ease,opacity .18s ease,box-shadow .18s 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#2fb86f}.previewModeBanner{display:grid;gap:4px;min-width:0;margin:0 24px 10px;padding:12px 14px;border:1px solid #e6ddff;border-radius:22px;background:#f1ecffe6;color:var(--sm-purple)}.previewModeBanner strong,.previewModeBanner span{min-width:0;overflow-wrap:anywhere}.previewModeBanner strong{font-size:.95rem}.previewModeBanner span{color:var(--sm-muted);font-size:.86rem;font-weight:700}.childContent{padding:8px 24px 120px;min-width:0}.screenStack{display:grid;gap:16px;min-width:0}.screenList{display:grid;gap:12px}.card{width:100%;min-width:0;background:#ffffffe6;border:1px solid var(--sm-line);border-radius:var(--sm-radius-panel);padding:24px 20px;text-align:center;box-shadow:var(--sm-shadow-soft)}.bindCard{padding:28px 20px 26px;border-radius:34px;background:linear-gradient(180deg,#fffffffa,#fafdfbf5),url(/assets/sproutmate/backgrounds/card_dots_waves.png) center bottom / cover no-repeat}.bindCard h1{margin:0;font-size:clamp(1.9rem,8.2vw,2.25rem);line-height:1.08;white-space:nowrap}.kicker{margin:0 0 10px;color:#667085;font-weight:700}.screenHint,.feedbackHint,.fillBlankHint,.emptyFootnote,.feedbackAnswerLine,.bindNotice{color:var(--sm-muted);overflow-wrap:anywhere}.bindNotice{margin:0 0 14px;border:1px solid #e6ddff;border-radius:20px;padding:12px 14px;background:#f1ecff;color:var(--sm-purple);font-weight:800}.bindCodeField{position:relative;display:block;margin-top:22px;min-width:0;cursor:text}.bindCodeFieldLabel{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.bindInput,.answerInput{width:100%;margin-top:18px;border:1px solid #dde8e0;border-radius:18px;padding:16px 18px;text-align:center;font-size:1.15rem;color:#172033;background:#fff}.bindInput{position:absolute;inset:0;z-index:2;margin-top:0;border:0;padding:0;opacity:0;cursor:text}.bindCodeSlots{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px;min-width:0}.bindCodeSlot{min-width:0;min-height:74px;border:1px solid #dbe9e0;border-radius:22px;display:grid;place-items:center;background:#fffffff0;color:#8f96a7;font-size:2rem;font-weight:800;box-shadow:inset 0 1px #fffc;transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease}.bindCodeField:focus-within .bindCodeSlot{border-color:#2fb86f66;box-shadow:inset 0 1px #ffffffe6,0 0 0 4px #2fb86f14}.bindCodeSlot-filled{color:var(--sm-ink);transform:translateY(-1px)}.bindPrimaryButton{display:block;width:100%;margin:24px 0 0;border-radius:22px;min-height:56px;padding-inline:24px;font-size:1.05rem;background:linear-gradient(180deg,#39c979,#30b96f);box-shadow:0 16px 28px #2fb86f3d,0 0 0 8px #6fd99a1f}.bindPrimaryButton:disabled{background:linear-gradient(180deg,#bfe9cf,#a6ddb9);color:#ffffffeb;box-shadow:none}.bindMascot,.emptyMascot,.rewardMascot{display:block;width:120px;height:auto;margin:22px auto 0}.bindFootnote{margin:10px 0 0;color:#7f8aa3;font-size:.98rem;font-weight:700}.taskHeroCard{display:grid;grid-template-columns:minmax(0,1fr) 84px;gap:12px;align-items:center;margin:18px 0 20px;border-radius:24px;padding:18px;background:#ffffffb8;border:1px solid #dde8e0;text-align:left}.taskHeroCard h1{margin:0;font-size:1.65rem}.taskHeroCard p{margin:8px 0 0;color:#667085}.taskHeroMascot{width:84px;height:auto}.taskIntro{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.taskIntro span{border-radius:999px;padding:7px 12px;background:#eef8f2;color:#16a35d;font-weight:700}.homeHeroCard,.recordSummaryCard,.profileHeroCard,.rewardOverviewCard{text-align:left}.homeHeroCard{display:grid;grid-template-columns:minmax(0,1fr) 90px;align-items:center;gap:12px;padding-top:28px;padding-bottom:28px}.homeTaskDeck{display:grid;gap:14px;text-align:left;padding-top:28px;padding-bottom:24px}.homeTaskDeckHeader h3{margin:0;font-size:1.95rem}.homeTaskRow{display:grid;grid-template-columns:44px minmax(0,1fr);gap:12px;align-items:start}.homeTaskIndex{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:#fff;border:2px solid #dde8e0;color:#98a2b3;font-weight:800}.homeTaskIndex-active{border-color:#2fb86f;color:#2fb86f}.homeTaskRowCard{border:1px solid #dde8e0;border-radius:28px;padding:18px 16px;background:#ffffffdb}.homeTaskRowCard strong{display:block;font-size:1.08rem}.homeTaskRowCard p,.homeTaskRowCard span{margin:6px 0 0;color:#667085;overflow-wrap:anywhere}.taskModePill{display:inline-flex;align-items:center;margin-top:8px;border-radius:999px;padding:6px 10px;background:#f1ecff;color:#7a5af8;font-style:normal;font-size:.86rem;font-weight:700;max-width:100%;overflow-wrap:anywhere}.homeHeroCard h2,.recordSummaryCard h2,.profileHeroCard h2,.rewardOverviewCard h2,.flowCard h2,.recordListCard h3,.profileMenuCard h3{margin:0;font-size:1.85rem}.homeHeroCard p,.rewardOverviewCard p,.recordListCard p{color:#667085}.homeHeroCard .kicker,.flowCard .kicker,.recordSummaryCard .kicker,.weeklyDoneCard .kicker,.recordListCard .kicker{margin-bottom:12px;font-size:.92rem}.homeHeroMascot{width:90px;height:auto}.miniTaskCard{display:grid;grid-template-columns:34px minmax(0,1fr) auto;align-items:center;gap:12px;border:1px solid #dde8e0;border-radius:22px;padding:14px 16px;background:#ffffffe6}.miniTaskCard strong,.flowStepCard strong{display:block}.miniTaskCard p,.flowStepCard p,.flowStepCard span,.recordRow span,.profileHeroCard p,.profileMenuRow span{margin:2px 0 0;color:var(--sm-muted);overflow-wrap:anywhere}.miniTaskBadge{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:#eaf2ff;color:#4d96ff;font-weight:800}.miniTaskMeta{border-radius:var(--sm-radius-pill);padding:6px 10px;background:#eef8f2;color:#16a35d;font-size:.86rem;font-weight:700}.flowCard{text-align:left;padding:30px 18px 24px;border-radius:34px}.flowLead{margin:12px 0 0;color:#667085;font-size:1rem}.flowMetaPills{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.flowMetaPills span{display:inline-flex;align-items:center;min-height:32px;padding:0 12px;border-radius:var(--sm-radius-pill);background:#eef8f2;color:#16a35d;font-size:.88rem;font-weight:700}.flowTimeline{display:grid;gap:12px;margin-top:22px;position:relative}.flowTimeline:before{content:"";position:absolute;left:16px;top:14px;bottom:14px;width:2px;background:#dfe9e1}.flowStep{display:grid;grid-template-columns:34px minmax(0,1fr);gap:12px;align-items:start;position:relative;z-index:1}.flowDot{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:#fff;border:2px solid #dde8e0;color:#98a2b3;font-weight:800}.flowDot-active{border-color:#2fb86f;color:#2fb86f}.flowDot-done{border-color:#2fb86f;background:#2fb86f;color:#fff}.flowStepCard{border:1px solid #dde8e0;border-radius:30px;padding:22px 18px 20px;background:#ffffffdb}.flowStepCard strong{font-size:1.1rem}.flowStepCard p{font-size:.98rem}.flowStepCard span{display:inline-block;margin-top:10px}.aiBottomHint{display:grid;grid-template-columns:52px minmax(0,1fr);gap:12px;align-items:center;margin-top:22px;border-radius:22px;padding:18px 16px;background:#f7f4ff}.aiBottomHint img{width:52px;height:auto}.aiBottomHint p{margin:0;color:#667085}.homeTaskHint{margin-top:10px}.questionCard{width:100%;min-width:0;padding-inline:0;overflow:hidden;background:transparent;border:0;box-shadow:none}.progressRow{min-width:0;padding:0 2px;text-align:left}.progressRow .kicker{margin-bottom:10px;color:var(--sm-muted);font-size:1rem;font-weight:800;letter-spacing:.04em}.progressTrack{width:100%;height:8px;border-radius:999px;background:#edf3ee;overflow:hidden}.progressValue{height:100%;border-radius:inherit;background:#4d96ff}.questionPrompt{display:grid;justify-items:center;min-width:0;margin-top:20px;border-radius:32px;padding:28px 22px 24px;background:linear-gradient(180deg,#fffffffa,#fbfefcf0),url(/assets/sproutmate/backgrounds/card_dots_waves.png) center bottom / cover no-repeat;border:1px solid var(--sm-line);box-shadow:var(--sm-shadow-soft)}.questionBadge{display:inline-flex;align-items:center;min-height:34px;margin-bottom:18px;border:1px solid var(--sm-blue);border-radius:999px;padding:6px 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#1720330d}.option.selected{background:#eaf2ff;color:#4d96ff;border-color:#4d96ff;box-shadow:0 10px 20px #4d96ff24}.fillBlankBox{min-width:0;margin-top:20px}.submitRow{width:100%;min-width:0;margin-top:22px}.submitRow button{display:block;width:100%;min-height:58px;border-radius:22px;font-size:1.08rem;letter-spacing:.04em;background:linear-gradient(180deg,var(--sm-green),var(--sm-green-deep))}.feedbackScreen{padding-top:30px}.feedbackIllustration img{width:110px;height:auto}.feedbackScreen h1{margin:14px 0 0;font-size:2rem}.aiHintCard{margin-top:18px;border-radius:22px;padding:16px;background:#f4f8ff;border:1px solid #dde8e0;text-align:left}.aiHintCard strong{display:block;margin-bottom:6px;color:#7a5af8}.aiHintCard p{margin:0;overflow-wrap:anywhere}.aiExplainScreen{text-align:left;padding-top:28px}.aiExplainHeader h1{margin:0;font-size:2rem;line-height:1.2}.aiExplainCard{display:grid;gap:16px;margin-top:18px;border:1px solid #dde8e0;border-radius:28px;padding:20px 18px;background:#ffffffe0}.aiExplainCard strong{font-size:1.02rem}.aiExplainSteps{display:grid;gap:12px}.aiExplainStep{display:grid;grid-template-columns:30px minmax(0,1fr);gap:10px;align-items:start}.aiExplainStep span{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%;background:#eef8f2;color:#16a35d;font-weight:800}.aiExplainStep p,.aiExplainAnswer p{margin:0;color:#667085;overflow-wrap:anywhere}.aiExplainAnswer{display:grid;gap:6px;border-top:1px solid #edf3ee;padding-top:14px}.feedbackPager{display:flex;justify-content:center;gap:6px;margin-top:18px}.feedbackPagerDot{width:8px;height:8px;border-radius:999px;background:#d0d5dd}.feedbackPagerDot-active{background:#4d96ff}.feedbackActions{display:flex;gap:10px;margin-top:18px}.feedbackActions button{flex:1}.neutralPill{background:#fff;color:#667085;border:1px solid #dde8e0;box-shadow:none}.rewardSummary{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:14px}.rewardChip{border-radius:999px;padding:8px 12px;background:#eef8f2;color:#16a35d;font-weight:700}.scoreText{color:#16a35d;font-weight:800}.childTabBar{position:fixed;left:50%;bottom:18px;width:min(calc(100vw - 24px),398px);transform:translate(-50%);z-index:40;display:grid;grid-template-columns:repeat(4,1fr);gap:6px;padding:12px 14px;background:#fffffff0;border:1px solid var(--sm-line);border-radius:30px;box-shadow:0 16px 36px #1720331f;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.childTab{display:grid;justify-items:center;gap:2px;padding:10px 4px;border-radius:22px;background:transparent;color:#667085;box-shadow:none}.childTab strong{font-size:.72rem}.childTabLabel{opacity:.72}.childTabDot{width:18px;height:18px;border-radius:999px;background:#dde8e0}.childTab-active{background:#eef8f2;color:#16a35d}.childTab-active .childTabDot{background:#2fb86f}.childTab-active .childTabLabel{opacity:1}.recordStats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px}.recordSummaryCard-tall{min-height:360px;padding-top:34px;padding-bottom:34px}.recordStatsStack{display:grid;gap:26px;margin-top:32px}.recordStatBlock strong{display:block;font-size:2.3rem}.recordStatBlock span{display:block;margin-top:6px;color:#667085}.recordStats strong{display:block;font-size:1.5rem}.recordStats span{display:block;margin-top:4px;color:#667085}.miniBarChart{display:flex;align-items:end;justify-content:center;gap:14px;height:140px;margin-top:38px}.miniBarChart span{display:block;width:44px;border-radius:999px;background:#dde8e0}.miniBarChart span.miniBar-active{background:linear-gradient(180deg,#4d96ff,#2fb86f)}.weeklyDoneCard{min-height:320px;text-align:center;padding-top:34px}.weeklyDoneCard h3{margin:0;font-size:1.8rem}.recordListCard,.profileMenuCard,.rewardBadgeGridCard{text-align:left}.recordListCard{padding-top:30px;padding-bottom:24px}.recordRow,.profileMenuRow{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:18px 0;border-top:1px solid #edf3ee}.recordRow:first-of-type,.profileMenuRow:first-of-type{border-top:0}.recordRowMain{min-width:0}.recordRowMain strong{display:block;font-size:1.05rem}.recordRowMain p{margin:6px 0 0;color:#667085;overflow-wrap:anywhere}.recordRow span{flex-shrink:0;max-width:44%;text-align:right;font-weight:700}.recordEmptyText{margin:18px 0 0;color:#667085;font-weight:700;line-height:1.7;text-align:center;overflow-wrap:anywhere}.profileHeroCard{text-align:center}.profileAvatar{width:88px;height:auto}.profileProgress{width:100%;height:8px;margin-top:14px;border-radius:999px;background:#edf3ee;overflow:hidden}.profileProgress span{display:block;width:62%;height:100%;border-radius:inherit;background:#2fb86f}.rewardSticker{width:84px;height:auto}.rewardBadgeGrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:10px}.rewardBadge{display:grid;justify-items:center;gap:8px;border:1px solid #dde8e0;border-radius:22px;padding:14px 10px;background:#ffffffe0}.rewardBadge img{width:52px;height:auto}.activityTaskCard{display:grid;gap:22px;overflow-wrap:anywhere}.activityHero{display:grid;grid-template-columns:auto minmax(0,1fr);gap:16px;align-items:center}.activityHero img{width:72px;height:auto}.activityHero h1{margin:0;font-size:clamp(2rem,9vw,3rem);line-height:1.08}.activityHero p{margin:10px 0 0;color:#667085}.readingPanel,.wordPracticeCard{border:1px solid #dde8e0;border-radius:26px;background:#ffffffeb}.readingPanel{display:grid;gap:14px;padding:22px}.readingPanel p{margin:0;color:#172033;font-size:1.12rem;line-height:1.9;white-space:pre-wrap}.readAloudControls{display:flex;flex-wrap:wrap;align-items:center;gap:10px;min-width:0}.readAloudButton,.readAloudReplayButton{min-height:50px;padding:12px 18px;box-shadow:none}.readAloudButton{background:#fff2df;border:1px solid #ffaa4d;color:#b26b00}.readAloudReplayButton{background:#fff;border:1px solid #dde8e0;color:#16a35d}.readAloudNotice{width:100%;margin:0;color:#667085;font-size:.9rem;line-height:1.5;overflow-wrap:anywhere}.wordPracticeList{display:grid;gap:12px}.wordPracticeCard{display:grid;gap:6px;padding:18px}.wordPracticeCard strong{font-size:1.8rem;color:#172033}.wordPracticeCard span{color:#16a35d;font-weight:800}.wordPracticeCard p{margin:0;color:#667085;line-height:1.6}.activitySelfRating{display:grid;gap:14px;min-width:0;border:1px solid #dde8e0;border-radius:28px;padding:20px;background:#ffffffe6}.activitySelfRating>div:first-child{display:grid;gap:6px;text-align:center}.activitySelfRating>div:first-child strong{color:#172033;font-size:1.15rem}.activitySelfRating p,.activitySelfRating small{margin:0;color:#667085;text-align:center;overflow-wrap:anywhere}.activityRatingOptions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;min-width:0}.activityRatingButton{display:grid;grid-template-columns:34px minmax(0,1fr);align-items:center;gap:8px;min-width:0;min-height:58px;border:1px solid #dde8e0;border-radius:20px;padding:10px 12px;background:#fff;color:#172033;box-shadow:none}.activityRatingButton span{display:inline-grid;width:34px;height:34px;place-items:center;border-radius:999px;background:#fff2df;color:#b26b00;font-weight:900}.activityRatingButton strong{min-width:0;font-size:.92rem;text-align:left;overflow-wrap:anywhere}.activityRatingButton-2{border-color:#bde8cd;background:#eaf8ef}.activityRatingButton-2 span,.activityRatingButton-3 span{background:#ddf4e6;color:#16a35d}.activityRatingButton-3{border-color:#2fb86f;background:#2fb86f;color:#fff}@media(min-width:700px){.page{padding:24px 32px 118px}.childAppShell{width:min(calc(100vw - 48px),760px);min-height:calc(100vh - 48px);border-radius:40px}.childTopBar{padding:30px 36px 14px}.childTopBar h1{font-size:2.25rem}.childTopBar p{max-width:560px;font-size:1.05rem;line-height:1.65}.childAvatar{width:58px;height:58px;border-radius:20px}.previewModeBanner{margin-inline:36px}.childContent{padding:12px 36px 136px}.questionPrompt{padding:34px 42px 30px}.questionPrompt h1{font-size:clamp(2.1rem,4.6vw,2.7rem);line-height:1.38}.options{gap:16px}.option{min-height:68px;font-size:1.12rem}.submitRow button{min-height:62px}.childTabBar{width:min(calc(100vw - 112px),696px);border-radius:34px;padding-inline:18px}}@media(max-width:460px){.page{padding:0 0 108px}.childAppShell{width:100%;min-height:100vh;border-radius:0}.childTabBar{bottom:12px;width:calc(100vw - 24px)}.homeHeroCard,.recordStats,.rewardBadgeGrid{grid-template-columns:1fr}.activityHero{grid-template-columns:1fr;justify-items:center;text-align:center}.activityRatingOptions{grid-template-columns:1fr}.activityRatingButton strong{font-size:1rem}}@media(max-width:390px){.bindCard{padding-inline:18px}.bindCodeSlots{gap:8px}.bindCodeSlot{min-height:66px;border-radius:20px;font-size:1.75rem}.bindPrimaryButton{width:100%}}