/* Ocean Academy 樣式 —— 3D 卡通＋熱帶海洋 */
:root{--sea1:#5fc6f5;--sea2:#1c8fd6;--sky:#bfe9ff;--sand:#f6e6bd;--wood:#a8692f;--woodD:#6b4423;--leaf:#7bd88f;--ink:#27445c;--gold:#f5b700;--r:16px}
*{box-sizing:border-box}
html,body{margin:0;height:100%;overflow:hidden;font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,sans-serif;color:var(--ink);background:#1c8fd6}
button,input{font:inherit}
button{cursor:pointer}
#app,.screen,.game{height:100%}
.mat-icon{display:block;filter:drop-shadow(0 2px 2px rgba(0,0,0,.25))}

/* ---------- 按鈕 ---------- */
.btn{border:0;border-radius:14px;padding:10px 18px;font-weight:800;color:var(--ink);background:#fff;box-shadow:0 4px 0 #c5d6e3,0 6px 12px rgba(20,70,110,.18);transition:transform .12s,box-shadow .12s,filter .12s}
.btn:hover{transform:translateY(-2px);filter:brightness(1.05)}
.btn:active{transform:translateY(3px);box-shadow:0 1px 0 #c5d6e3}
.btn.primary{background:linear-gradient(#ffcd4a,#ff9f1c);color:#5a3200;box-shadow:0 4px 0 #c77400,0 6px 14px rgba(180,100,0,.35)}
.btn.primary:active{box-shadow:0 1px 0 #c77400}
.btn.danger{background:#ff6b6b;color:#fff;box-shadow:0 4px 0 #c43a3a}
.btn.ghost{background:rgba(255,255,255,.7);box-shadow:0 3px 0 #b8cad8}
.btn.big{padding:14px 28px;font-size:1.15rem}
.btn.small{padding:7px 12px;font-size:.9rem}
.btn:disabled{opacity:.5;pointer-events:none}
.tiny{font-size:.82rem;opacity:.75;margin:6px 0}

/* ---------- 海浪 / 雲 ---------- */
.wave{position:absolute;left:0;width:100%;height:90px;pointer-events:none;opacity:.55;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='90' viewBox='0 0 200 90'%3E%3Cpath d='M0 30Q50 5 100 30T200 30' fill='none' stroke='white' stroke-width='3' stroke-opacity='.75'/%3E%3Cpath d='M0 72Q50 50 100 72T200 72' fill='none' stroke='white' stroke-width='2' stroke-opacity='.5'/%3E%3C/svg%3E") repeat;animation:waveMove 14s linear infinite}
.wave.w1{top:6%;height:30%;animation-duration:16s}
.wave.w2{top:38%;height:30%;animation-duration:22s;animation-direction:reverse;opacity:.4}
.wave.w3{top:70%;height:30%;animation-duration:12s}
@keyframes waveMove{to{background-position:200px 90px}}
.cloud{position:absolute;width:150px;height:46px;background:#fff;border-radius:40px;opacity:.85;filter:blur(.5px);animation:drift 60s linear infinite}
.cloud::before,.cloud::after{content:"";position:absolute;background:#fff;border-radius:50%}
.cloud::before{width:60px;height:60px;left:22px;top:-26px}.cloud::after{width:44px;height:44px;left:70px;top:-16px}
.cloud.c1{top:8%;left:-10%}.cloud.c2{top:20%;left:-30%;animation-duration:90s;transform:scale(.7)}
@keyframes drift{to{left:110%}}
.boat{position:absolute;font-size:2.2rem;animation:bob 3s ease-in-out infinite;filter:drop-shadow(0 4px 3px rgba(0,50,90,.3))}
.boat.b1{left:34%;top:36%}.boat.b2{left:70%;top:76%;animation-delay:1s}
.fish{position:absolute;font-size:1.6rem;opacity:.85;animation:swim 26s linear infinite}
.fish.f1{top:30%;left:-5%}.fish.f2{top:64%;left:-5%;animation-duration:34s;animation-delay:4s}.fish.f3{top:92%;left:-8%;font-size:2.6rem;animation-duration:50s}
@keyframes swim{to{left:105%}}
@keyframes bob{50%{transform:translateY(-8px) rotate(4deg)}}

/* ---------- 登入 / 前情 ---------- */
.screen.login{position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;background:linear-gradient(#9fe0ff 0%,#d7f3ff 38%,#4fc0f0 38%,#1c8fd6 100%)}
.login-sea{position:absolute;inset:38% 0 0 0;overflow:hidden}
.login-sea .wave{top:0}.login-sea .w2{top:33%}.login-sea .w3{top:66%}
.sun{position:absolute;top:7%;right:12%;width:110px;height:110px;border-radius:50%;background:radial-gradient(#fff9c4,#ffe066);box-shadow:0 0 70px 30px rgba(255,235,120,.55)}
.login-island{position:absolute;bottom:2%;left:50%;width:min(620px,92vw);transform:translateX(-50%);animation:bob 6s ease-in-out infinite;opacity:.95}
.login-card{position:relative;z-index:2;width:min(420px,90vw);padding:28px;border-radius:26px;text-align:center;background:rgba(255,255,255,.88);backdrop-filter:blur(6px);box-shadow:0 10px 0 rgba(20,90,140,.25),0 24px 50px rgba(10,60,100,.35);margin-bottom:12vh}
.logo{font-size:3rem}
.login-card h1{margin:0;font-size:2.4rem;letter-spacing:1px;background:linear-gradient(90deg,#0f8fd8,#19c1a8);-webkit-background-clip:text;background-clip:text;color:transparent}
.sub{margin:4px 0 18px;font-weight:700;color:#4a6a82}
.login-card label{display:block;text-align:left;font-weight:800;margin-bottom:6px}
.login-card input{width:100%;padding:13px 14px;border:3px solid #bfe3f5;border-radius:14px;font-size:1.05rem;margin-bottom:16px;outline:0;transition:border .2s}
.login-card input:focus{border-color:#2fa6e6}
.shake{animation:shake .4s;border-color:#ff6b6b!important}
@keyframes shake{25%{transform:translateX(-8px)}75%{transform:translateX(8px)}}
.story-card{position:relative;z-index:2;width:min(620px,92vw);max-height:92vh;overflow:auto;padding:28px 32px;border-radius:26px;background:rgba(255,252,240,.95);border:4px solid #e8cf98;box-shadow:0 10px 0 rgba(120,80,20,.25),0 24px 50px rgba(10,60,100,.35)}
.story-card h2{margin:0 0 14px;text-align:center}
.story-card p{margin:10px 0;line-height:1.7;opacity:0;animation:fadeUp .8s forwards}
.story-card p.lead{font-size:1.35rem;font-weight:900;color:#0f7fc0}
.story-btn{display:block;margin:18px auto 0;opacity:0;animation:fadeUp .8s forwards}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}

/* ---------- 遊戲外框 ---------- */
.game{display:flex;flex-direction:column;position:relative}
.topbar{flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;padding:8px 14px;background:linear-gradient(#fff,#e4f5ff);border-bottom:3px solid #b8dcf0;box-shadow:0 3px 10px rgba(20,80,120,.2);z-index:5}
.who{display:flex;align-items:center;gap:10px}
.avatar{font-size:1.7rem;width:42px;height:42px;display:grid;place-items:center;border-radius:50%;background:#ffe9a8;border:3px solid #fff;box-shadow:0 2px 6px rgba(0,0,0,.2)}
.who b{display:block;font-size:1.05rem}
.title-badge{display:inline-block;margin-left:6px;padding:2px 10px;border-radius:99px;font-size:.78rem;font-weight:800;background:linear-gradient(#ffd75a,#ffae1a);color:#5a3200;vertical-align:middle}
.who .title-badge{margin:2px 0 0;display:inline-block}
.top-right{display:flex;gap:8px}
.chip-btn{border:0;padding:8px 12px;border-radius:99px;background:#fff;font-weight:800;box-shadow:0 3px 0 #b8cad8;transition:transform .12s}
.chip-btn:hover{transform:translateY(-2px)}
#view{flex:1;min-height:0;position:relative;overflow:hidden;background:#1c8fd6}
#view.view-course,#view.view-builder{overflow:auto;background:linear-gradient(#d9f3ff,#fdf6e3)}
.bottom-nav{flex:0 0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:8px;padding:8px 12px calc(8px + env(safe-area-inset-bottom));background:linear-gradient(#a8692f,#7a4a22);border-top:4px solid #5a3519;z-index:5}
.bottom-nav button{border:0;border-radius:14px;padding:8px 4px;font-weight:900;color:#fff4dc;background:rgba(255,255,255,.12);display:flex;flex-direction:column;align-items:center;gap:2px;transition:all .15s}
.bottom-nav button span{font-size:1.5rem;transition:transform .15s}
.bottom-nav button:hover span{transform:scale(1.2) rotate(-6deg)}
.bottom-nav button.active{background:linear-gradient(#ffe08a,#ffb32e);color:#5a3200;box-shadow:inset 0 -4px 0 rgba(160,90,0,.4),0 0 14px rgba(255,210,80,.7)}
#toasts{position:fixed;top:72px;left:50%;transform:translateX(-50%);z-index:99;display:flex;flex-direction:column;gap:8px;align-items:center;pointer-events:none}
.toast{padding:10px 18px;border-radius:99px;background:#27445c;color:#fff;font-weight:700;box-shadow:0 6px 18px rgba(0,0,0,.3);animation:fadeUp .3s;transition:opacity .4s}
.toast.good{background:#1f9d55}.toast.warn{background:#d9822b}.toast.out{opacity:0}

/* ---------- 海洋世界 ---------- */
.ocean{height:100%;overflow:auto;cursor:grab;scrollbar-width:none;touch-action:pan-x pan-y}
.ocean::-webkit-scrollbar{display:none}
.ocean-scene{position:relative;width:100%;min-width:1200px;height:100%;min-height:800px;background:linear-gradient(#6fd0f7,#2ba0e0 55%,#1580cc);overflow:hidden}
.ocean-scene.static{position:absolute;inset:0;min-width:0;min-height:0}
.island{position:absolute;width:230px;transform:translate(-50%,-50%);cursor:pointer;transition:transform .25s,filter .25s;animation:float 5s ease-in-out infinite}
.island:nth-child(odd){animation-delay:-2s}
.island.mine{width:300px;z-index:3}
.island:hover{transform:translate(-50%,-50%) scale(1.08);filter:drop-shadow(0 0 14px rgba(255,255,255,.9))}
@keyframes float{50%{margin-top:-6px}}
.island-svg{display:block;width:100%;height:auto;overflow:visible}
.tag{position:absolute;left:50%;bottom:-6px;transform:translateX(-50%);white-space:nowrap;padding:4px 14px;border-radius:99px;background:rgba(255,255,255,.95);font-weight:900;box-shadow:0 3px 8px rgba(0,50,90,.3);text-align:center}
.tag small{display:block;font-size:.68rem;color:#b07a00;margin-top:-2px}
.you{position:absolute;top:-4px;left:50%;transform:translateX(-50%);padding:2px 12px;border-radius:99px;background:#ff6f91;color:#fff;font-size:.78rem;font-weight:900;animation:bob 2s infinite;z-index:2}
.ocean-hint{position:fixed;bottom:84px;left:50%;transform:translateX(-50%);padding:6px 16px;border-radius:99px;background:rgba(0,40,80,.55);color:#fff;font-size:.85rem;pointer-events:none;white-space:nowrap}

/* ---------- 彈窗 ---------- */
.modal-bg{position:fixed;inset:0;z-index:50;display:grid;place-items:center;padding:14px;background:rgba(10,40,70,.55);backdrop-filter:blur(3px);animation:fadeIn .2s}
@keyframes fadeIn{from{opacity:0}}
.modal{width:min(440px,100%);max-height:92vh;overflow:auto;padding:22px;border-radius:24px;background:#fffdf5;border:4px solid #e8cf98;box-shadow:0 12px 0 rgba(120,80,20,.25),0 30px 60px rgba(0,0,0,.4);animation:pop .3s cubic-bezier(.3,1.5,.5,1)}
.modal.wide{width:min(560px,100%)}
.modal h3{margin:0 0 10px}.modal .btn{margin-top:10px;width:100%}.modal .row .btn{margin-top:10px}
.row{display:flex;gap:10px;flex-wrap:wrap}.row .btn{flex:1;width:auto}
@keyframes pop{from{transform:scale(.8);opacity:0}}
.zoom-island{background:linear-gradient(#6fd0f7,#2ba0e0);border-radius:18px;padding:10px;margin-bottom:10px}
.zoom-island .island-svg{max-height:300px}

/* ---------- 知識任務 ---------- */
.quest{position:relative;height:100%;background:linear-gradient(#6fd0f7,#1580cc)}
.quest-svg{position:absolute;inset:0;width:100%;height:100%}
.quest-top{position:absolute;top:10px;left:50%;transform:translateX(-50%);z-index:2;padding:8px 22px;border-radius:18px;background:rgba(255,255,255,.92);text-align:center;box-shadow:0 5px 14px rgba(0,50,90,.3);min-width:min(420px,92vw)}
.quest-top b{display:block}.quest-top span{font-size:.85rem}
.progress{height:10px;border-radius:99px;background:#d7e8f2;overflow:hidden;flex:1}
.progress i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,#4cd964,#19c1a8);transition:width .4s}
.quest-top .progress{margin-top:6px}
.tree-wrap{cursor:pointer}
.tree-in{transform-box:fill-box;transform-origin:50% 100%;transition:transform .2s,filter .2s}
.tree-wrap:hover .tree-in{transform:scale(1.1);filter:drop-shadow(0 0 10px #fff)}
.tree-in.s2{filter:drop-shadow(0 0 10px #fff27a)}
.glow-ring{animation:pulse 2s ease-in-out infinite;transform-box:fill-box;transform-origin:center}
@keyframes pulse{50%{opacity:.5;transform:scale(1.1)}}
.lbl-bg{fill:#fff8e1;stroke:#8a5a2c;stroke-width:2.5}.lbl-num{fill:#ffb02e;stroke:#8a5a2c;stroke-width:2}
.lbl-n{font:900 15px sans-serif;fill:#fff}.lbl-u{font:700 11px sans-serif;fill:#8a5a2c}.lbl-t{font:800 13px sans-serif;fill:#4a2c14}
.plot-t{font:800 16px sans-serif;fill:#fff;paint-order:stroke;stroke:#3b8f4a;stroke-width:4}
.tree-wrap:hover .lbl-bg{fill:#fff2b8}
.smoke{animation:smoke 2.6s ease-in-out infinite}
@keyframes smoke{50%{transform:translateY(-6px);opacity:.3}}

/* ---------- 課程頁 ---------- */
.course{max-width:960px;margin:0 auto;padding:14px 14px 40px}
.course-head{position:sticky;top:0;z-index:4;display:flex;flex-wrap:wrap;align-items:center;gap:12px;padding:10px 14px;margin-bottom:12px;border-radius:18px;background:rgba(255,255,255,.95);box-shadow:0 4px 14px rgba(0,60,100,.18)}
.course-head h2{margin:0;font-size:1.25rem}.course-head small{color:#8a6a00;font-weight:800}
.stepper{margin-left:auto;display:flex;gap:6px}.stepper button{border:0;padding:6px 12px;border-radius:99px;background:#e1f3fd;font-weight:800}
.stepper button:hover{background:#bfe6fa}
.panel{background:#fff;border-radius:22px;padding:18px;margin-bottom:16px;border:3px solid #d5ebf7;box-shadow:0 6px 0 #c5dceb}
.panel h3{margin:0 0 12px}.panel h4{margin:16px 0 8px}
.video-box{position:relative;aspect-ratio:16/9;border-radius:16px;overflow:hidden;background:#0b2233;box-shadow:0 6px 0 #0a1a28}
.video-box iframe,.video-box video{width:100%;height:100%;border:0;display:block;background:#000}
.video-empty{height:100%;display:grid;place-items:center;color:#9fc3da}
.video-tools{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.video-tools input{flex:1;min-width:160px;padding:9px 12px;border:3px solid #cfe6f3;border-radius:12px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.kcard{padding:14px;border-radius:18px;background:linear-gradient(#fffbe8,#fff1c4);border:3px solid #f0d890;box-shadow:0 4px 0 #e0c46c;transition:transform .15s}
.kcard:hover{transform:translateY(-4px) rotate(-.6deg)}
.kcard span{font-size:2rem}.kcard b{display:block;margin:4px 0}.kcard p{margin:0;font-size:.92rem;line-height:1.55}
.two{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.points{margin:0;padding-left:0;list-style:none}.points li{padding:8px 12px 8px 34px;margin-bottom:6px;border-radius:12px;background:#e9f9ee;position:relative}
.points li::before{content:"✔";position:absolute;left:11px;color:#1f9d55;font-weight:900}
.flow{display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.fstep{padding:8px 12px;border-radius:14px;background:#e3f2fd;border:2px solid #9ccbea;font-weight:700;font-size:.92rem}
.fstep i{display:inline-grid;place-items:center;width:22px;height:22px;margin-right:6px;border-radius:50%;background:#2f9bd8;color:#fff;font-style:normal;font-size:.78rem}
.arr{color:#2f9bd8;font-weight:900}
.tbl-wrap{overflow-x:auto}table{width:100%;border-collapse:separate;border-spacing:0;border-radius:14px;overflow:hidden;border:2px solid #cfe3ef}
th{background:#2f9bd8;color:#fff;padding:9px;text-align:left}td{padding:9px;border-top:1px solid #e1eef6}td.first{font-weight:800;background:#f3faff}
.quiz-info{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0}.quiz-info div{flex:1;min-width:110px;padding:10px;border-radius:14px;background:#eef8ff;text-align:center;font-size:.85rem}.quiz-info b{display:block;font-size:1.2rem}
.best{padding:10px 14px;border-radius:12px;background:#fff6d6;margin-bottom:12px;font-weight:700}
.quiz-bar{display:flex;align-items:center;gap:12px;margin-bottom:8px;font-weight:800}
.qmsg{min-height:1.5em;margin:10px 0;font-weight:800;color:#c0392b}
.quiz-actions{display:flex;gap:10px;flex-wrap:wrap}

/* ---------- 測驗元件 ---------- */
.dz{transition:background .15s,box-shadow .15s}.dz.over{box-shadow:0 0 0 4px #ffcd4a inset;background:#fff8dc}
.qz-classify .pool{min-height:84px;padding:34px 12px 12px;border-radius:16px;border:3px dashed #9ccbea;background:#f1fafe;display:flex;flex-wrap:wrap;gap:8px;position:relative;margin-bottom:12px}
.dz-label{position:absolute;top:8px;left:12px;font-size:.8rem;font-weight:800;opacity:.6}
.zones{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px}
.zone{min-height:150px;border-radius:16px;border:3px solid #9ccbea;background:#fff}.zone h4{margin:0;padding:8px 12px;border-radius:12px 12px 0 0;background:#d8effc}
.zone-items{padding:10px;display:flex;flex-direction:column;gap:8px}
.chip{padding:9px 12px;border-radius:12px;background:linear-gradient(#fffdf2,#ffefb8);border:2px solid #e8cf78;box-shadow:0 3px 0 #d7b950;font-weight:700;font-size:.92rem;cursor:grab;user-select:none;transition:transform .12s}
.chip:hover{transform:translateY(-2px) scale(1.02)}
.chip.sel{outline:4px solid #ff9f1c;transform:scale(1.04)}
.chip.ok{background:#d6f7de;border-color:#5cc977;box-shadow:0 3px 0 #4aae63;cursor:default}
.chip.bad{background:#ffe0e0;border-color:#ff8a8a;box-shadow:0 3px 0 #e06a6a;animation:shake .4s}
.hint{opacity:.6;font-size:.9rem}
.qz-match{display:grid;grid-template-columns:1fr 1.5fr;gap:14px}.qz-match .col{display:flex;flex-direction:column;gap:8px}
.qz-match button{text-align:left;padding:11px 12px;border-radius:14px;border:3px solid #bfe0f3;background:#fff;font-weight:700;display:flex;gap:8px;align-items:center;transition:all .12s}
.qz-match button:hover{transform:translateX(3px);border-color:#2f9bd8}.qz-match .sel{border-color:#ff9f1c;background:#fff4d8;transform:scale(1.02)}
.qz-match .ok{background:#d6f7de;border-color:#5cc977}.qz-match .bad{background:#ffe0e0;border-color:#ff8a8a}
.dot{flex:0 0 14px;width:14px;height:14px;border-radius:50%;box-shadow:0 0 0 2px #fff,0 0 0 3px rgba(0,0,0,.2)}
.sc-card{padding:14px;margin-bottom:12px;border-radius:18px;border:3px solid #cfe6f3;background:#f7fcff}
.sc-card.ok{border-color:#5cc977;background:#f0fff4}.sc-card.bad{border-color:#ff8a8a;background:#fff5f5}
.sc-q{font-weight:800;margin-bottom:10px;line-height:1.55}.qn{display:inline-block;margin-right:8px;padding:2px 10px;border-radius:99px;background:#2f9bd8;color:#fff;font-size:.8rem}
.sc-opts{display:grid;gap:8px}.sc-opt{text-align:left;padding:10px 12px;border-radius:12px;border:3px solid #cfe6f3;background:#fff;font-weight:700;transition:all .12s}
.sc-opt:hover:not(:disabled){border-color:#2f9bd8;transform:translateX(3px)}.sc-opt.sel{border-color:#ff9f1c;background:#fff4d8}
.sc-opt:disabled{cursor:default}.sc-exp{margin-top:10px;font-weight:700;font-size:.92rem}.sc-exp.ok{color:#1f8a4c}.sc-exp.bad{color:#c0392b}
.qz-sort{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.qz-sort li{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:14px;background:#fff;border:3px solid #cfe6f3;cursor:grab;transition:all .12s}
.qz-sort li:hover{border-color:#2f9bd8}.qz-sort li.over{border-color:#ff9f1c;background:#fff8dc}.qz-sort li.dragging{opacity:.4}
.qz-sort li.ok{background:#f0fff4;border-color:#5cc977}.qz-sort li.bad{background:#fff5f5;border-color:#ff8a8a}
.num{flex:0 0 30px;height:30px;border-radius:50%;display:grid;place-items:center;background:#2f9bd8;color:#fff;font-weight:900}
.qz-sort .txt{flex:1;font-weight:700}.qz-sort .ctl{display:flex;gap:4px}.qz-sort .ctl button{border:0;width:30px;height:30px;border-radius:8px;background:#e1f3fd;font-weight:900}
.qz-sort .ctl button:disabled{opacity:.3}
.qz-key{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:10px}
.key{text-align:left;display:flex;gap:10px;align-items:flex-start;padding:12px;border-radius:14px;border:3px solid #cfe6f3;background:#fff;font-weight:700;transition:all .12s}
.key:hover:not(:disabled){transform:translateY(-3px);border-color:#2f9bd8}.key.sel{border-color:#ff9f1c;background:#fff4d8}
.key.ok{background:#f0fff4;border-color:#5cc977}.key.bad{background:#fff5f5;border-color:#ff8a8a}.key:disabled{cursor:default}
.lens{font-size:1.2rem}

/* ---------- 獎勵 ---------- */
.reward-modal{width:min(520px,100%);text-align:center;position:relative}
.reward h2{margin:0 0 10px}.reward h4{margin:12px 0 6px}
.rw-burst{position:absolute;inset:0;pointer-events:none;overflow:hidden;border-radius:20px}
.confetti{position:absolute;top:-12px;width:9px;height:14px;border-radius:2px;animation:fall 2.4s linear forwards}
@keyframes fall{to{top:105%;transform:translateX(30px) rotate(720deg)}}
.grade-badge{display:inline-flex;flex-direction:column;align-items:center;margin:6px 0 10px;padding:10px 30px;border-radius:20px;background:linear-gradient(#fff,color-mix(in srgb,var(--gc) 25%,#fff));border:4px solid var(--gc);box-shadow:0 0 24px color-mix(in srgb,var(--gc) 60%,transparent);animation:pop .6s cubic-bezier(.3,1.7,.5,1)}
.grade-badge b{font-size:3rem;line-height:1;color:var(--gc);text-shadow:0 3px 0 rgba(0,0,0,.15)}.grade-badge span{font-weight:900}
.rw-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:8px 0}.rw-stats div{padding:8px 4px;border-radius:12px;background:#eef8ff;font-size:.78rem}.rw-stats b{display:block;font-size:1.05rem}
.rw-list{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.rw-item{display:flex;flex-direction:column;align-items:center;min-width:84px;padding:8px 10px;border-radius:14px;background:#fff;border:3px solid #cfe6f3;animation:itemIn .5s both}
.rw-item b{font-size:.8rem}.rw-item em{font-style:normal;font-weight:900;font-size:1.1rem}
.rw-item.tier-advanced{border-color:#8bc7f0;background:#f1f9ff}.rw-item.tier-rare{border-color:#ffc83d;background:linear-gradient(#fffbe6,#ffefb0);box-shadow:0 0 16px rgba(255,200,60,.7)}
@keyframes itemIn{from{transform:scale(0) rotate(-20deg);opacity:0}}
.note{padding:10px;border-radius:12px;background:#fff6d6;font-weight:700}
.new-title{margin:12px 0;padding:8px;border-radius:12px;background:linear-gradient(#ffe9a0,#ffc94a);font-weight:900;color:#5a3200;animation:pop .6s}
.house-show{background:linear-gradient(#bfe9ff,#e9f8ff);border-radius:16px;margin:8px 0;animation:pop .6s}.house-show svg{width:100%;max-height:230px}

/* ---------- 庫存 ---------- */
.inv-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(88px,1fr));gap:8px}
.inv-item{display:flex;flex-direction:column;align-items:center;padding:6px;border-radius:12px;background:#fff;border:2px solid #d8e8f2;font-size:.76rem;font-weight:800;position:relative}
.inv-item b{font-size:1rem}.inv-item.empty{opacity:.45}.inv-grid.mini{grid-template-columns:repeat(3,1fr)}
.tier-h{margin:12px 0 6px}.tier-h.tier-advanced{color:#2f7fb8}.tier-h.tier-rare{color:#b07a00}
.ach-list{list-style:none;padding:0;margin:0}.ach-list li{display:flex;gap:12px;align-items:center;padding:10px;margin-bottom:8px;border-radius:14px;background:#eef2f5;opacity:.6}
.ach-list li.got{opacity:1;background:linear-gradient(#fff7d1,#ffe9a0)}.ach-list li span{font-size:1.6rem}.ach-list small{display:block}

/* ---------- 建築工坊 ---------- */
.builder{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:14px;padding:12px;max-width:1300px;margin:0 auto}
.b-toolbar{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:8px}
.b-toolbar button{border:0;padding:8px 12px;border-radius:12px;background:#fff;font-weight:800;box-shadow:0 3px 0 #b8cad8;transition:transform .1s}
.b-toolbar button:hover:not(:disabled){transform:translateY(-2px);background:#fff8dc}.b-toolbar button:disabled{opacity:.4}.b-toolbar .danger{background:#ffe0e0}
.b-canvas{position:relative}
#bsvg{display:block;width:100%;height:auto;border-radius:20px;border:5px solid #fff;box-shadow:0 8px 0 #b8cad8,0 14px 30px rgba(20,80,120,.25);touch-action:none;user-select:none;background:#bfe9ff}
.b-hint{position:absolute;left:50%;top:44%;transform:translate(-50%,-50%);padding:8px 16px;border-radius:99px;background:rgba(255,255,255,.85);font-weight:800;font-size:.88rem;pointer-events:none;text-align:center;width:max-content;max-width:86%}
.piece{cursor:grab}.piece:hover{filter:brightness(1.1) drop-shadow(0 0 5px #fff)}.piece:active{cursor:grabbing}
.selbox{display:none;fill:rgba(255,160,30,.08);stroke:#ff8a00;stroke-width:2.5;stroke-dasharray:7 5;animation:dash 1s linear infinite;pointer-events:none}
.piece.selected .selbox{display:block}
@keyframes dash{to{stroke-dashoffset:-24}}
.builder.preview .grid{display:none}.builder.preview .piece{pointer-events:none}.builder.preview #bpieces{animation:floaty 3s ease-in-out infinite}.builder.preview .b-toolbar{opacity:.35;pointer-events:none}
@keyframes floaty{50%{transform:translateY(-5px)}}
.b-actions{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}.b-actions .btn{flex:1}
.b-side{background:#fffdf5;border:3px solid #e8cf98;border-radius:20px;padding:12px;box-shadow:0 6px 0 #d4b878;align-self:start;max-height:calc(100vh - 170px);overflow:auto}
.b-side h3{margin:4px 0 8px}.b-side h4{margin:12px 0 6px;color:#8a5a2c}
.pal-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.pal{display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 6px;border-radius:14px;border:3px solid #e2d3aa;background:#fff;transition:all .12s}
.pal svg{width:100%;height:46px;filter:drop-shadow(0 2px 2px rgba(0,0,0,.2))}
.pal b{font-size:.85rem}.pal small{font-size:.68rem;opacity:.7}
.pal:hover:not(.lack){transform:translateY(-3px) scale(1.03);border-color:#ffb32e;box-shadow:0 0 14px rgba(255,190,60,.7)}
.pal.lack{opacity:.4;cursor:not-allowed}

@media(max-width:860px){
  .builder{grid-template-columns:1fr}.b-side{max-height:none}
  .stepper{margin-left:0;width:100%}.stepper button{flex:1}
  .qz-match{grid-template-columns:1fr}.rw-stats{grid-template-columns:repeat(2,1fr)}
  .island{width:190px}.island.mine{width:250px}
}

/* ---------- 多人模式 ---------- */
.login-err{min-height:1.3em;margin:-8px 0 10px;color:#d63a3a;font-weight:800;font-size:.9rem}
.sync{font-size:.78rem;font-weight:800;color:#3a6a8a;align-self:center;margin-right:2px}
.tag small.st{color:#2f7fb8;font-size:.64rem;margin-top:0}