:root{
  --bg:#fff4f9;--card:#fff;--ink:#4a2c4a;--muted:#9a7a94;--line:#f7d9ea;
  --p:#ff8fc0;--p2:#e0559a;--g:#5ccfa0;--r:#ff7b8a;--b:#7fb8f0;--v:#b58cff;--gold:#f6c453;
  --radius:22px;--shadow:0 6px 0 rgba(224,85,154,.08),0 10px 30px rgba(224,85,154,.12);
  --font:"Nunito","Noto Sans SC",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.5}
body{background-image:radial-gradient(circle at 12% 18%,rgba(255,255,255,.9) 0 2px,transparent 3px),radial-gradient(circle at 78% 8%,rgba(255,255,255,.9) 0 2px,transparent 3px),radial-gradient(circle at 60% 55%,rgba(255,255,255,.8) 0 1.5px,transparent 2.5px),radial-gradient(circle at 30% 80%,rgba(255,255,255,.8) 0 1.5px,transparent 2.5px),radial-gradient(circle at 90% 70%,rgba(255,255,255,.9) 0 2px,transparent 3px),linear-gradient(180deg,#fff0f7,#f6efff 60%,#fff4f9);background-size:340px 340px,340px 340px,340px 340px,340px 340px,340px 340px,100% 100%;background-attachment:fixed}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
[hidden]{display:none!important}
h1,h2,h3{margin:.2em 0 .4em;line-height:1.2}
h1{font-size:1.7rem;font-weight:900}h2{font-size:1.25rem;font-weight:900}h3{font-size:1.05rem;font-weight:800}
.muted{color:var(--muted)}.small{font-size:.85rem}.center{text-align:center}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.grow{flex:1}.right{margin-left:auto}

.top{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:rgba(255,244,249,.92);backdrop-filter:blur(8px);border-bottom:2px solid var(--line)}
.brand{display:flex;align-items:center;gap:8px;font-weight:900;font-size:1.15rem;background:linear-gradient(90deg,var(--p2),#9b6cff);-webkit-background-clip:text;background-clip:text;color:transparent}.brand .logo{-webkit-text-fill-color:initial}.logo{font-size:1.5rem}
.hud{display:flex;gap:8px}
.pill{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:999px;background:#fff;border:2px solid var(--line);font-weight:800;font-size:.9rem}
.pill.hot{border-color:var(--p);background:#ffe3f0}

.nav{position:fixed;bottom:0;left:0;right:0;z-index:20;display:grid;grid-template-columns:repeat(8,1fr);background:#fff;border-top:2px solid var(--line);padding:6px 4px calc(6px + env(safe-area-inset-bottom))}
.nav a{display:flex;flex-direction:column;align-items:center;gap:2px;padding:4px 0;border-radius:12px;color:var(--muted);font-size:.7rem;font-weight:800}
.nav a i{font-style:normal;font-size:1.3rem;line-height:1}.nav a.on{color:var(--p2);background:#ffe3f0}
.view{max-width:900px;margin:0 auto;padding:16px 16px 96px}
@media(min-width:900px){
  .nav{position:sticky;top:58px;bottom:auto;grid-template-columns:repeat(8,auto);justify-content:center;gap:6px;border-top:0;border-bottom:2px solid var(--line);background:rgba(255,244,249,.92)}
  .nav a{flex-direction:row;gap:6px;padding:8px 14px;font-size:.95rem}.view{padding-bottom:40px}
}

.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:16px}
.card.soft{box-shadow:none;border:2px solid var(--line)}
.grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
.grid.wide{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:12px 20px;border-radius:16px;background:var(--p);color:#fff;font-weight:900;font-size:1rem;box-shadow:0 4px 0 #e06ba3;transition:transform .05s;text-shadow:0 1px 0 rgba(0,0,0,.08)}
.btn:active{transform:translateY(3px);box-shadow:0 1px 0 #e06ba3}
.btn.g{background:var(--g);box-shadow:0 4px 0 #3aa77c;color:#fff}.btn.g:active{box-shadow:0 1px 0 #3aa77c}
.btn.r{background:var(--r);box-shadow:0 4px 0 #d95a6a;color:#fff}.btn.r:active{box-shadow:0 1px 0 #d95a6a}
.btn.b{background:var(--b);box-shadow:0 4px 0 #5a93cf;color:#fff}.btn.b:active{box-shadow:0 1px 0 #5a93cf}
.btn.v{background:var(--v);box-shadow:0 4px 0 #8f66e0;color:#fff}.btn.v:active{box-shadow:0 1px 0 #8f66e0}
.btn.ghost{background:#fff;border:2px solid var(--line);box-shadow:none;color:var(--ink);text-shadow:none}.btn.ghost:active{transform:none}
.btn.sm{padding:8px 14px;font-size:.9rem;border-radius:12px}.btn.big{padding:16px 28px;font-size:1.2rem}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}
.tabs button{padding:8px 14px;border-radius:999px;background:#fff;border:2px solid var(--line);font-weight:800}
.tabs button.on{background:linear-gradient(90deg,var(--p2),#9b6cff);color:#fff;border-color:transparent}
.chip{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border-radius:14px;background:#fff;border:2px solid var(--line);font-weight:800;cursor:pointer}
.chip:hover{border-color:var(--p)}.chip.done{background:#eafff5;border-color:var(--g)}
.chip .e{font-size:1.3rem}
input,select,textarea{font:inherit;padding:10px 12px;border-radius:12px;border:2px solid var(--line);background:#fff;color:var(--ink);width:100%}
label.f{display:block;font-weight:800;font-size:.9rem;margin:10px 0 4px}
.bar{height:12px;border-radius:999px;background:#f7dfeb;overflow:hidden}.bar>i{display:block;height:100%;background:linear-gradient(90deg,var(--p),var(--v));border-radius:999px;transition:width .4s}
.toast{position:fixed;left:50%;bottom:90px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:12px 18px;border-radius:14px;font-weight:800;z-index:50;box-shadow:0 10px 30px rgba(0,0,0,.2);animation:pop .25s}
@keyframes pop{from{transform:translateX(-50%) scale(.8);opacity:0}}
#confetti{position:fixed;inset:0;pointer-events:none;z-index:60;overflow:hidden}
#confetti i{position:absolute;top:-10px;width:10px;height:14px;border-radius:2px;animation:fall 1.8s ease-in forwards}
@keyframes fall{to{transform:translateY(110vh) rotate(720deg);opacity:.2}}

/* home */
.hero{position:relative;overflow:hidden;display:flex;align-items:center;gap:16px;background:linear-gradient(135deg,#ffd1e8,#e5c6ff);border-radius:var(--radius);padding:20px;margin-bottom:16px;box-shadow:var(--shadow)}
.hero::before{content:'👑';position:absolute;right:14px;top:8px;font-size:1.6rem;opacity:.9}.hero::after{content:'✨ ✨';position:absolute;right:16px;bottom:10px;font-size:1rem;opacity:.8;letter-spacing:6px}
.hero .avatar{font-size:3.5rem;background:#fff;border-radius:50%;width:84px;height:84px;display:grid;place-items:center;box-shadow:0 0 0 4px #fff,0 0 0 7px var(--gold),var(--shadow)}
.quest{display:flex;align-items:center;gap:12px;padding:12px;border-radius:16px;border:2px solid var(--line);margin-bottom:8px;background:#fff}
.quest.done{background:#eafff5;border-color:var(--g)}.quest .ic{font-size:1.6rem}.quest .t{font-weight:800}.quest .chk{font-size:1.4rem}
.week{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}
.week div{aspect-ratio:1;border-radius:10px;background:#f7dfeb;display:grid;place-items:center;font-size:.75rem;font-weight:800;color:var(--muted)}
.week div.on{background:var(--g);color:#fff}.week div.today{outline:3px solid var(--p)}
.shop{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;border:2px solid var(--line);border-radius:14px;margin-bottom:8px;background:#fff}

/* flashcard */
.fc{perspective:1000px;margin:10px auto;max-width:420px}
.fc .in{position:relative;height:300px;transform-style:preserve-3d;transition:transform .5s;cursor:pointer}
.fc.flip .in{transform:rotateY(180deg)}
.fc .face{position:absolute;inset:0;backface-visibility:hidden;background:#fff;border-radius:24px;box-shadow:var(--shadow);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:20px}
.fc .back{transform:rotateY(180deg);background:#fff0f7}
.fc .e{font-size:5.5rem;line-height:1}.fc .w{font-size:2.2rem;font-weight:900;letter-spacing:.02em}.fc .zh{font-size:1.6rem;font-weight:800}
.wordtile{display:flex;flex-direction:column;align-items:center;gap:4px;padding:12px 8px;background:#fff;border-radius:16px;border:2px solid var(--line);cursor:pointer;text-align:center}
.wordtile .e{font-size:2rem}.wordtile .w{font-weight:900}.wordtile .zh{font-size:.8rem;color:var(--muted)}
.wordtile.l0{border-color:#ddd}.wordtile.l1{border-color:var(--r)}.wordtile.l2{border-color:var(--p)}.wordtile.l3{border-color:var(--g);background:#f1fff8}
.lvl{font-size:.7rem;padding:2px 8px;border-radius:999px;background:#eee;font-weight:800}
.lvl.l1{background:#ffe1e1;color:#b33}.lvl.l2{background:#fff0c2;color:#8a5b00}.lvl.l3{background:#dbffe9;color:#1d7a4b}

/* games */
.opt{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.opt button{padding:18px 10px;border-radius:18px;background:#fff;border:3px solid var(--line);font-size:1.1rem;font-weight:900;display:flex;flex-direction:column;align-items:center;gap:6px}
.opt button .e{font-size:2.6rem}.opt button.ok{border-color:var(--g);background:#eafff5}.opt button.no{border-color:var(--r);background:#ffecec}
.tiles{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin:12px 0}
.tile{width:50px;height:56px;border-radius:12px;background:#fff;border:3px solid var(--line);font-size:1.6rem;font-weight:900;display:grid;place-items:center;box-shadow:0 3px 0 #f0c9dd}
.tile.used{opacity:.25}.slots .tile{background:#fff0f7;border-style:dashed}.slots .tile.filled{border-style:solid;border-color:var(--p)}
.match{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.match button{aspect-ratio:1;border-radius:16px;background:#fff;border:3px solid var(--line);font-weight:900;font-size:1rem;display:grid;place-items:center;padding:4px}
.match button .e{font-size:2rem}.match button.sel{border-color:var(--v);background:#f3ecff}.match button.gone{visibility:hidden}
.big-e{font-size:5rem;text-align:center;line-height:1.1}

/* plan / resources */
.stage{border-left:6px solid var(--p);padding-left:14px;margin:14px 0}
.stage ul{margin:6px 0;padding-left:18px}
table{width:100%;border-collapse:collapse;font-size:.9rem}td,th{padding:8px;border-bottom:1px solid var(--line);text-align:left}
.res{display:flex;flex-direction:column;gap:6px}
.res .name{font-weight:900;font-size:1.05rem}.tag{font-size:.7rem;padding:2px 8px;border-radius:999px;background:#f7dfeb;font-weight:800}.tag.free{background:#dbffe9;color:#1d7a4b}
.badge{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px;border-radius:14px;background:#fff;border:2px solid var(--line);text-align:center;font-size:.8rem;font-weight:800}
.badge .e{font-size:2rem}.badge.off{opacity:.35;filter:grayscale(1)}
.acc>summary{cursor:pointer;font-weight:900;padding:10px 0;list-style:none}.acc>summary::-webkit-details-marker{display:none}
.acc>summary::before{content:'▸ ';color:var(--p2)}.acc[open]>summary::before{content:'▾ '}

/* 移动端优先补充 */
html{-webkit-text-size-adjust:100%;touch-action:manipulation}
body{overscroll-behavior-y:none;-webkit-user-select:none;user-select:none}
input,textarea{-webkit-user-select:text;user-select:text}
.btn,.chip,.opt button,.tile,.match button,.wordtile,.nav a{min-height:44px}
@media(max-width:480px){
  .view{padding:12px 12px 100px}.card{padding:14px;border-radius:16px}
  h1{font-size:1.45rem}.hero{padding:16px}.hero .avatar{width:68px;height:68px;font-size:2.8rem}
  .fc .in{height:260px}.fc .e{font-size:4.5rem}.fc .w{font-size:1.9rem}
  .grid{grid-template-columns:repeat(3,1fr)}.wordtile .e{font-size:1.7rem}.wordtile .w{font-size:.9rem}
  .opt button .e{font-size:2.2rem}.tile{width:44px;height:50px;font-size:1.4rem}
  .nav a b{font-size:.65rem}
}
@media(display-mode:standalone){.top{padding-top:calc(10px + env(safe-area-inset-top))}}

/* 对话 */
.today-scene{display:flex;align-items:center;gap:14px;background:linear-gradient(135deg,#ffd1e8,#e5c6ff);color:var(--ink);box-shadow:var(--shadow)}
.today-scene .e{font-size:2.8rem}.today-scene .go{font-size:1.4rem;background:#fff;border-radius:50%;width:44px;height:44px;display:grid;place-items:center;color:var(--p2)}
.grid.scenes{grid-template-columns:repeat(auto-fill,minmax(140px,1fr))}
.scene{display:flex;flex-direction:column;align-items:center;gap:4px;padding:14px 8px;background:#fff;border-radius:18px;border:2px solid var(--line);text-align:center;box-shadow:var(--shadow)}
.scene .e{font-size:2.2rem}.scene .t{font-weight:900}.scene.done{border-color:var(--g);background:#f1fff8}
.chat{display:flex;flex-direction:column;gap:10px;margin:14px 0}
.msg{display:flex;flex-direction:column;max-width:85%;cursor:pointer;transition:transform .2s,opacity .2s}
.msg.a{align-self:flex-start}.msg.b{align-self:flex-end;align-items:flex-end}
.msg .who{font-size:.72rem;font-weight:800;color:var(--muted);margin:0 8px 2px}
.msg .bub{padding:10px 14px;border-radius:18px;border:2px solid var(--line);background:#fff}
.msg.a .bub{border-bottom-left-radius:6px;background:#f6efff;border-color:#e6d6ff}
.msg.b .bub{border-bottom-right-radius:6px;background:#ffeaf4;border-color:#ffc7e0}
.msg .en{font-weight:800;font-size:1.05rem}.msg .zh{font-size:.8rem;color:var(--muted)}
.msg.cur{transform:scale(1.03)}.msg.cur .bub{border-color:var(--p2);box-shadow:0 0 0 3px #ffd1e8}
.msg.past{opacity:.55}
.your-turn{width:100%;text-align:center;font-weight:900;color:var(--p2);font-size:1.05rem;animation:pop .3s}
@media(max-width:480px){.grid.scenes{grid-template-columns:repeat(2,1fr)}.msg{max-width:92%}}