/* 儿童友好主题：活泼但不牺牲可读性 */
body{background:radial-gradient(circle at 12% 8%,rgba(255,219,112,.18),transparent 22%),radial-gradient(circle at 92% 75%,rgba(111,196,174,.14),transparent 25%),#f7f6f1}
.sidebar{background:linear-gradient(180deg,#17473e 0%,#205b4e 64%,#153e37 100%)}
.logo-mark{border-radius:16px;background:linear-gradient(145deg,#ffe07c,#ffb765);box-shadow:0 7px 18px rgba(255,194,91,.25);transform:rotate(-4deg)}
.nav-item{border-radius:13px;transition:transform .15s,background .15s}.nav-item:hover{transform:translateX(3px)}.nav-item.active{background:linear-gradient(100deg,rgba(255,219,105,.25),rgba(255,255,255,.1));box-shadow:inset 3px 0 #ffd45f}
.card{border-color:#e3e8e1;box-shadow:0 7px 22px rgba(47,79,68,.065)}
.primary,.hero-actions button:first-child{background:linear-gradient(135deg,#2d7c67,#1f5b4e);color:#fff;box-shadow:0 6px 13px rgba(39,107,91,.22)}
.primary:hover,.print-button:hover{transform:translateY(-1px)}
.home-hero{overflow:hidden;background:radial-gradient(circle at 83% 24%,rgba(255,216,103,.34),transparent 22%),linear-gradient(125deg,#245f52,#3a826a)}.home-hero:after{content:'✦  ·  ★  ·  ✦';position:absolute;right:28px;bottom:13px;color:rgba(255,255,255,.17);letter-spacing:9px;font-size:20px}
.home-stats>div{transition:transform .16s}.home-stats>div:hover{transform:translateY(-3px)}
.week-day.complete{background:linear-gradient(180deg,#e1f4e9,#f8fcfa)}
.mood-button{transition:transform .16s,box-shadow .16s}.mood-button:hover,.mood-button.selected{transform:translateY(-3px)}.mood-button.selected{box-shadow:0 8px 16px rgba(48,120,97,.15)}
.achievement-card.unlocked{background:linear-gradient(145deg,#fffdf5,#f3fbf7);border-color:#e8cf83}
.pathway-hero,.checkin-hero{overflow:hidden}.pathway-hero:after,.checkin-hero:after{content:'★';position:absolute;right:26px;top:15px;color:rgba(255,255,255,.2);font-size:50px;transform:rotate(14deg)}

.practice-hero{position:relative;overflow:hidden;padding-right:305px}.practice-hero>div:first-child,.practice-rings{position:relative;z-index:2}.practice-rings{position:absolute;right:32px;bottom:23px;min-width:260px}.space-mascot{position:absolute;right:105px;top:2px;width:118px;height:92px;z-index:1}.mascot-face{position:absolute;left:35px;top:10px;width:65px;height:65px;display:grid;place-items:center;border:5px solid rgba(255,255,255,.22);border-radius:50%;background:#fff3c9;font-size:39px;box-shadow:0 9px 22px rgba(0,0,0,.15);animation:space-float 3.4s ease-in-out infinite}.mascot-star{position:absolute;left:6px;top:7px;color:#ffd66b;font-size:23px;animation:twinkle 1.8s ease-in-out infinite}.space-mascot i{position:absolute;font-style:normal;color:#aee4d0}.orbit-one{right:2px;top:4px}.orbit-two{left:13px;bottom:4px;font-size:9px}@keyframes space-float{50%{transform:translateY(-6px) rotate(2deg)}}@keyframes twinkle{50%{opacity:.35;transform:scale(.75)}}
.daily-adventure{display:grid;grid-template-columns:minmax(260px,.9fr) minmax(340px,1.25fr) 115px;gap:17px;align-items:center;margin:0 0 14px;padding:19px 20px;border:1px solid #eadca9;border-radius:18px;background:linear-gradient(120deg,#fff8df,#fff 62%,#eef8f3);box-shadow:0 8px 22px rgba(88,78,42,.07)}.adventure-label{display:inline-block;padding:5px 8px;border-radius:7px;background:#ffe697;color:#79601a;font-size:9px;font-weight:900}.adventure-copy h3{margin:8px 0 4px;font-size:16px}.adventure-copy p{margin:0;color:var(--muted);font-size:10px}.adventure-progress{height:7px;margin-top:12px;overflow:hidden;border-radius:99px;background:#e9e9df}.adventure-progress i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,#60bd91,#f1c64f)}.adventure-copy>small{display:block;margin-top:5px;color:#839089;font-size:8px}.challenge-stack{display:grid;gap:6px}.challenge-stack button{display:grid;grid-template-columns:25px 1fr auto;align-items:center;gap:7px;padding:8px 10px;border:1px solid #e8ebe5;border-radius:10px;background:rgba(255,255,255,.84);text-align:left;cursor:pointer;transition:.15s}.challenge-stack button:hover{border-color:#8fc3ae;transform:translateX(2px)}.challenge-stack button>span{width:23px;height:23px;display:grid;place-items:center;border-radius:7px;background:#e8f5ef;color:#2c765e;font-weight:900}.challenge-stack b,.challenge-stack small{display:block}.challenge-stack b{font-size:10px}.challenge-stack small{margin-top:2px;color:var(--muted);font-size:8px}.challenge-stack i{font-style:normal;color:#d39a27;font-size:8px;font-weight:900}.treasure-box{text-align:center}.treasure-box>span{display:block;font-size:38px;animation:treasure-bounce 2.5s ease-in-out infinite}.treasure-box b,.treasure-box small{display:block}.treasure-box b{font-size:10px}.treasure-box small{margin-top:3px;color:var(--muted);font-size:8px}@keyframes treasure-bounce{50%{transform:translateY(-4px) rotate(3deg)}}
.practice-paths button{position:relative;grid-template-columns:40px 1fr 18px;grid-template-rows:auto 7px;overflow:hidden}.practice-paths button>span:first-child{grid-row:1/3}.practice-paths button>div{grid-column:2}.practice-paths button>i{grid-column:3;grid-row:1}.path-progress{grid-column:2/4;width:100%;height:5px!important;border-radius:99px!important;background:#e7ece8!important;overflow:hidden}.path-progress i{display:block!important;height:100%;background:linear-gradient(90deg,#58b489,#f2c75b);border-radius:99px}.practice-paths button>em{position:absolute;right:13px;bottom:11px;color:#7f9189;font-size:7px;font-style:normal}
.problem-row{transition:background .15s,transform .15s}.problem-row:hover{transform:translateX(2px)}.problem-detail{border-top:4px solid #ffd36a;background:linear-gradient(180deg,#fff,#fbfdfb)}.problem-placeholder span{filter:drop-shadow(0 6px 7px rgba(47,101,82,.14));animation:space-float 3s ease-in-out infinite}
.level.easy:before{content:'🌱 '}.level.medium:before{content:'⭐ '}.level.hard:before{content:'🔥 '}

@media(max-width:1080px){.practice-hero{padding-right:32px}.space-mascot{display:none}.practice-rings{position:static;margin-left:auto}.daily-adventure{grid-template-columns:1fr 1.2fr}.treasure-box{display:none}}
@media(max-width:820px){.practice-rings{margin:18px 0 0}.daily-adventure{grid-template-columns:1fr}.treasure-box{display:block}.home-hero:after{display:none}}
@media(max-width:520px){.practice-hero{padding:21px}.practice-rings{grid-template-columns:repeat(3,1fr)}.daily-adventure{padding:15px}.challenge-stack button{grid-template-columns:25px 1fr}.challenge-stack i{display:none}}
@media(prefers-reduced-motion:reduce){.mascot-face,.mascot-star,.treasure-box>span,.problem-placeholder span{animation:none}.nav-item,.problem-row,.challenge-stack button{transition:none}}
.data-vault-card{overflow:hidden;background:linear-gradient(150deg,#f2faf6,#fff 58%,#fff7df);border-top:4px solid #52a982}.vault-head{display:flex;align-items:center;gap:11px}.vault-head>span{width:45px;height:45px;display:grid;place-items:center;border-radius:14px;background:#dff3e8;font-size:24px}.vault-head>div{flex:1}.vault-head small,.vault-head h2{display:block;margin:0}.vault-head small{color:#57917a;font-size:8px;letter-spacing:1.4px;font-weight:900}.vault-head h2{margin-top:3px;font-size:18px}.vault-head>b{padding:6px 9px;border-radius:99px;background:#dff3e8;color:#247052;font-size:9px}.vault-score{display:grid;grid-template-columns:repeat(3,1fr);margin:18px 0;border:1px solid #e0ebe5;border-radius:13px;background:rgba(255,255,255,.75)}.vault-score>div{display:grid;place-items:center;padding:12px 5px;border-right:1px solid #e0ebe5}.vault-score>div:last-child{border:0}.vault-score strong{font-size:18px;color:#246b55}.vault-score small{margin-top:3px;color:var(--muted);font-size:8px}.vault-status{display:flex;align-items:center;gap:10px;padding:11px;border-radius:11px;background:#eef6f2}.status-light{width:10px;height:10px;border-radius:50%;background:#4db080;box-shadow:0 0 0 5px rgba(77,176,128,.13)}.status-light.warning{background:#e4a345}.vault-status div{display:grid;gap:3px}.vault-status b{font-size:11px}.vault-status small{color:var(--muted);font-size:8px}.vault-actions{display:flex;gap:8px;margin-top:15px}.vault-actions button{flex:1}.vault-tip{margin:13px 0 0;padding-top:11px;border-top:1px dashed #d5dfda;color:#7e8e87;font-size:9px;line-height:1.65}
.server-access-control{display:grid;gap:12px;margin-top:16px;padding:15px;border:1px solid #cfe4da;border-radius:14px;background:rgba(255,255,255,.82)}.server-access-control>div:first-child{display:grid;gap:5px}.server-access-control b{font-size:14px;color:#245c4c}.server-access-control small{font-size:11px;line-height:1.55;color:#687d75}.server-access-control>div:last-child{display:grid;grid-template-columns:1fr;gap:9px}.server-access-control input{min-width:0;font-size:16px}.server-access-control button{width:100%;white-space:nowrap}
@media(max-width:520px){.server-access-control>div:last-child{grid-template-columns:1fr}.server-access-control button{width:100%}}