:root {
  --background:#fff9f0; --surface:#fffefb; --ink:#513c31; --muted:#887264;
  --accent:#876641; --border:#eadccc; --radius:20px; --shadow:0 8px 24px #60452f0c;
}
*{box-sizing:border-box}
body{margin:0;background:var(--background);color:var(--ink);font-family:system-ui,"Microsoft JhengHei",sans-serif;font-size:15px;line-height:1.6}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button,a,label{ -webkit-tap-highlight-color:transparent}
button{cursor:pointer}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
.icon{width:24px;height:24px;flex:0 0 24px}
.app-header{height:84px;display:flex;align-items:center;padding:0 max(28px,calc((100vw - 1120px)/2));border-bottom:1px solid var(--border);gap:48px}
.brand{display:flex;align-items:center;gap:10px;font-size:24px;font-weight:800;letter-spacing:-1px}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--ink);color:var(--surface);font-size:22px}
.app-nav{display:flex;gap:8px}
.settings-action{display:grid;place-items:center;width:48px;height:48px;flex:0 0 48px;margin-left:auto;border:1px solid var(--border);border-radius:50%;background:var(--surface);color:var(--ink)}
.settings-action[aria-current]{background:#f0e5d6;color:var(--accent)}
.app-nav a{display:flex;align-items:center;gap:8px;min-height:48px;padding:8px 14px;border-radius:14px;font-size:14px;color:var(--muted)}
.app-nav a[aria-current]{background:#f0e5d6;color:var(--accent);font-weight:700}
.page{width:min(1120px,100%);margin:auto;padding:48px 28px 100px}
.narrow{max-width:620px}
.children-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:20px;margin-bottom:28px}
.child-title{display:flex;gap:16px;align-items:center;margin-bottom:22px}.child-title h2{margin:0}
.child-avatar{font-size:36px;display:grid;place-items:center;width:64px;height:64px;background:#f0e5d6;border-radius:20px;flex-shrink:0}
.family-actions{display:flex;flex-wrap:wrap;gap:10px}.member-link{display:block;margin-top:18px;color:var(--accent);padding:8px 0}
.account-panel{max-width:680px}.demo-note{margin-top:16px;font-size:12px}.family-section{margin-top:24px}
.invite-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 0}.invite-row small{display:block;color:var(--muted)}
.child-switcher{max-width:360px;margin-bottom:28px}
.page-heading{margin:0 0 28px}
.eyebrow{color:var(--accent);font-size:11px;letter-spacing:2px;font-weight:700}
h1{font-size:36px;line-height:1.3;letter-spacing:-1px;margin:10px 0}
h2{font-size:20px;line-height:1.4;margin:0 0 16px}
p{margin:8px 0}
.page-heading p,.muted{color:var(--muted);font-size:14px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--ink);color:var(--surface);border:1px solid var(--ink);border-radius:28px;min-height:48px;padding:10px 22px;font-weight:600}
.button.secondary{background:var(--surface);color:var(--ink)}
.add-action{position:fixed;bottom:28px;right:max(28px,calc((100vw - 1120px)/2));z-index:20;box-shadow:var(--shadow)}
.panel{padding:24px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:24px 0 32px}
.stats>div{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px}
.stats span{font-size:14px;color:var(--muted)}
.stats strong{display:block;font-size:32px;color:var(--accent)}
.section-heading{display:flex;align-items:center;justify-content:space-between;margin:32px 0 20px}
.section-heading h2{margin:0}
.section-heading a{color:var(--accent);min-height:44px;display:flex;align-items:center}
.work-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.work-card{display:block;background:var(--surface);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.work-art{aspect-ratio:1;display:grid;place-items:center}
.work-art{padding:18px;background:#f8f3ed}
.cutout{display:block;width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 3px 2px #60452f20);pointer-events:none}
.peach{background:#f7d9c8}.blue{background:#d6e9ee}.yellow{background:#f8edb6}.green{background:#dbe8d6}
.card-caption{padding:16px}
.card-caption h2{font-size:15px;margin:0 0 6px}
.card-caption p{font-size:12px;color:var(--muted);margin:0}
.filters{display:flex;gap:8px;flex-wrap:wrap;margin:24px 0}
.filters button{min-height:44px;padding:8px 18px;border:1px solid var(--border);border-radius:24px;background:transparent}
.filters .selected{background:var(--accent);border-color:var(--accent);color:var(--surface)}
.book-select{display:flex;flex-direction:row;align-items:center;gap:16px;color:var(--muted);white-space:nowrap}
.book-select select{max-width:300px}
.sticker-board{border:0;border-radius:24px;background:var(--surface);padding:24px}
.board-caption{display:block;text-align:center;font-size:10px;letter-spacing:2px;color:var(--muted)}
.sample-note{font-size:12px;color:var(--muted);text-align:center;margin:12px 0}
.sticker-scene{min-height:330px;padding:34px 12px;display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:0}
.sticker{display:block;flex:0 0 25%;max-width:220px;aspect-ratio:1;background:transparent;border:0;box-shadow:none;transform:translateY(14px) rotate(-9deg);transition:transform .2s}
.sticker:nth-child(2n){transform:translateY(-12px) rotate(8deg);scale:.88}
.sticker:nth-child(3n){transform:translateY(20px) rotate(-4deg);scale:1.08}
.sticker:hover,.sticker:focus-visible{transform:translateY(-6px) rotate(0)}
.calendar-grid .cutout{width:90%;height:44px}
.calendar{max-width:680px;margin:0 auto}
.calendar-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:8px}
.calendar-grid>a,.calendar-grid>.day{min-height:56px;display:flex;align-items:center;justify-content:center;background:#f8f3ed;border-radius:12px;position:relative}
.calendar-grid a>span{font-size:28px}
.calendar-grid small{position:absolute;bottom:2px;right:7px;font-size:11px}
.weekday{text-align:center;color:var(--muted);font-size:12px;padding:8px}
.settings-list{max-width:680px;padding:0}
.settings-list>a{display:flex;align-items:center;gap:20px;padding:24px;border-bottom:1px solid var(--border)}
.settings-list>a:last-child{border:0}
.settings-list>a>span:nth-child(2){flex:1}
.settings-list strong,.settings-list small{display:block}
.settings-list small{color:var(--muted);font-size:13px}
.form-panel{display:flex;flex-direction:column;gap:20px}
label{display:flex;flex-direction:column;gap:8px;font-size:14px;font-weight:600}
input:not([type=radio]),select,textarea{width:100%;min-height:48px;border:1px solid var(--border);border-radius:12px;background:var(--surface);padding:12px;font-size:16px}
textarea{min-height:120px;resize:vertical}
fieldset{border:0;padding:0;margin:0}
legend{font-size:14px;margin-bottom:12px}
.avatar-picker{display:flex;gap:10px;flex-wrap:wrap}
.avatar-picker label{position:relative}
.avatar-picker input{position:absolute;opacity:0}
.avatar-picker span{display:grid;place-items:center;width:48px;height:48px;border:2px solid var(--border);border-radius:14px;font-size:26px}
.avatar-picker input:checked+span{border-color:var(--accent);background:#f0e5d6}
.avatar-picker input:focus-visible+span{outline:3px solid var(--accent)}
.back-link{display:inline-flex;align-items:center;gap:8px;min-height:44px;margin-bottom:24px;color:var(--muted)}
.upload-layout,.detail-layout{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.upload-zone{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:320px;border-style:dashed}
.image-preview{display:grid;place-items:center;width:100%;min-height:180px;margin-bottom:20px}
.image-preview img{max-width:100%;max-height:300px;object-fit:contain}
.upload-zone input[type=file]{position:absolute;width:1px;height:1px;opacity:0;min-height:0;padding:0}
.upload-zone label:focus-within{outline:3px solid var(--accent);outline-offset:4px}
.detail-art{border-radius:var(--radius)}
.detail-art>span{font-size:160px}
.auth-header{padding:32px;display:flex;justify-content:center}
#notice{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);width:min(460px,calc(100% - 40px));background:var(--ink);color:var(--surface);padding:16px 20px;border-radius:16px;z-index:40}
[hidden]{display:none!important}
@media(max-width:1050px) and (min-width:851px){.app-header{gap:12px}.app-nav a{padding:8px;font-size:12px}.app-nav .icon{display:none}.add-action{font-size:13px;padding:10px 14px}}
@media(max-width:850px){
 .app-header{height:72px;padding:12px 20px;border:0}
 .app-header>.brand{display:none}
 .app-nav{position:fixed;left:16px;right:16px;bottom:calc(12px + env(safe-area-inset-bottom));height:68px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;padding:6px;border:1px solid var(--border);background:var(--surface);border-radius:22px;box-shadow:0 8px 28px #60452f12;z-index:30}
 .app-nav a{flex-direction:column;justify-content:center;gap:2px;font-size:12px;padding:4px;min-width:0;border-radius:16px;white-space:nowrap}
 .app-nav .icon{width:22px;height:22px;flex-basis:22px}
 .add-action{position:fixed;top:auto;right:20px;bottom:calc(96px + env(safe-area-inset-bottom));min-height:48px;font-size:14px;box-shadow:0 6px 20px #60452f25}
 .page{padding:12px 20px calc(180px + env(safe-area-inset-bottom))}
 h1{font-size:30px}
 .page-heading{margin-bottom:24px}
 .work-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
 .work-art{padding:12px}
 .card-caption{padding:14px}
 .card-caption h2{font-size:14px}
 .stats{gap:12px}
 .stats>div{padding:18px}
 .sticker-board{padding:18px 10px}
 .sticker-scene{min-height:280px;padding:20px 2px;gap:0}
 .sticker{flex-basis:48%;max-width:180px}
 .calendar-grid .cutout{height:34px}
 .calendar{padding:16px}
 .calendar-grid{gap:4px}
 .calendar-grid>a,.calendar-grid>.day{min-height:44px}
 .calendar-grid a>span{font-size:24px}
 .upload-layout,.detail-layout{grid-template-columns:1fr}
 .detail-art{max-height:360px;width:100%}
 .detail-art>span{font-size:130px}
 .settings-list>a{padding:20px 16px;gap:12px}
 #notice{bottom:calc(155px + env(safe-area-inset-bottom))}
}