:root{--bg: #FFF9F0;--bg-2: #FFF3E2;--card: #FFFFFF;--primary: #FF9F43;--primary-deep: #FF7E29;--grad-main: linear-gradient(135deg, #FFB05C 0%, #FF8E3C 100%);--green: #2EC4B6;--green-deep: #17A894;--grad-green: linear-gradient(135deg, #46D9C9 0%, #2EC4B6 100%);--blue: #4D96FF;--grad-blue: linear-gradient(135deg, #6FB1FF 0%, #4D96FF 100%);--pink: #FF8FA3;--grad-pink: linear-gradient(135deg, #FFA8B8 0%, #FF8FA3 100%);--purple: #9B8CFF;--yellow: #FFC53D;--text: #4A3F35;--text-sub: #A0907E;--border: #F5E8D6;--danger: #E2604F;--r-lg: 24px;--r: 18px;--r-sm: 12px;--shadow: 0 8px 24px rgba(255, 159, 67, .12);--shadow-lg: 0 14px 36px rgba(255, 159, 67, .18);--tabbar-h: 64px}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html,body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:15px;line-height:1.6}#app{max-width:720px;margin:0 auto;min-height:100vh;position:relative}.page{position:relative;padding:0 16px calc(var(--tabbar-h) + 40px);min-height:100vh}.page:before{content:"";position:absolute;top:0;left:0;right:0;height:220px;background:radial-gradient(circle at 15% 20%,rgba(255,185,110,.35) 0,transparent 42%),radial-gradient(circle at 88% 8%,rgba(255,143,163,.22) 0,transparent 40%),radial-gradient(circle at 65% 30%,rgba(78,201,187,.16) 0,transparent 38%);z-index:0;pointer-events:none}.page>*{position:relative;z-index:1}.content-card:hover,.content-card:has(.tip-wrap.open),.content-card:has(.ph-q.open){z-index:3}.card{background:var(--card);border-radius:var(--r-lg);box-shadow:var(--shadow);padding:18px;margin-bottom:14px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;border-radius:999px;padding:12px 22px;font-size:15px;font-weight:700;cursor:pointer;transition:transform .12s,opacity .15s;color:var(--text);font-family:inherit}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}.btn-primary{background:var(--grad-main);color:#fff;box-shadow:0 6px 16px #ff8e3c59}.btn-green{background:var(--grad-green);color:#fff;box-shadow:0 6px 16px #2ec4b652}.btn-blue{background:var(--grad-blue);color:#fff;box-shadow:0 6px 16px #4d96ff4d}.btn-soft{background:#fff0dc;color:var(--primary-deep)}.btn-soft-green{background:#e1f6f2;color:var(--green-deep)}.btn-ghost{background:#f7f7f7;color:var(--text-sub)}.btn-outline{background:#fff;color:var(--text-sub);border:1.5px solid var(--border)}.btn-block{width:100%}.tag{display:inline-block;font-size:11.5px;font-weight:600;padding:3px 10px;border-radius:999px;background:#fff0dc;color:var(--primary-deep);margin-right:6px;margin-bottom:4px}.tag-green{background:#e1f6f2;color:var(--green-deep)}.tag-blue{background:#e7f0ff;color:#3b7ee8}.tag-pink{background:#ffe9ee;color:#e8607c}.tag-gray{background:#f3f1ee;color:var(--text-sub)}.tag-yellow{background:#fff6d9;color:#c98a12}.tag-freq{background:#efe9ff;color:#6b4fd8;font-weight:700}.tag-tier{background:transparent;color:#9a938a;border:1px solid #E8E4DE}.tier-text{font-size:11.5px;color:#9a938a;font-weight:500;margin-right:6px}.muted{color:var(--text-sub);font-size:13px}.title{font-size:18px;font-weight:800;margin-bottom:4px}.subtitle{font-size:13px;color:var(--text-sub);margin-bottom:14px}.navbar{position:sticky;top:0;z-index:60;display:flex;align-items:center;gap:8px;padding:14px 8px 10px;background:transparent}.navbar .back{width:38px;height:38px;display:flex;align-items:center;justify-content:center;border:none;background:#ffffffe6;color:var(--text);border-radius:14px;box-shadow:0 4px 12px #ff9f4324;cursor:pointer}.navbar .back:active{transform:scale(.94)}.navbar .nav-title{font-size:18px;font-weight:800;flex:1}.tabbar{position:fixed;bottom:14px;left:50%;transform:translate(-50%);width:calc(100% - 32px);max-width:660px;height:var(--tabbar-h);background:#fffffff5;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-radius:24px;box-shadow:0 10px 32px #5a3c1e29;display:flex;align-items:center;padding:6px 10px;z-index:100}.tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;text-decoration:none;color:var(--text-sub);font-size:11px;font-weight:600;border-radius:18px;padding:5px 0}.tabbar a.active{color:var(--primary-deep);background:#fff3e2;font-weight:800}.item{display:flex;align-items:center;gap:12px;background:var(--card);border-radius:var(--r-lg);padding:14px;margin-bottom:10px;box-shadow:var(--shadow);cursor:pointer}.item:active{transform:scale(.99)}.item .ico{width:46px;height:46px;border-radius:15px;display:flex;align-items:center;justify-content:center;font-size:21px;font-weight:800;flex-shrink:0}.item .body{flex:1;min-width:0}.item .name{font-weight:700;font-size:15px}.item .desc{font-size:12px;color:var(--text-sub);margin-top:2px}.input,.textarea{width:100%;border:2px solid var(--border);border-radius:14px;padding:13px 16px;font-size:15px;background:#fffcf7;outline:none;font-family:inherit;color:var(--text);transition:border-color .15s}.input:focus,.textarea:focus{border-color:var(--primary);background:#fff}.input::placeholder,.textarea::placeholder{color:#cfc2b2}.textarea{min-height:100px;resize:vertical}.empty{text-align:center;color:var(--text-sub);padding:44px 20px;font-size:14px}.empty .big{font-size:52px;margin-bottom:12px}.loading{text-align:center;padding:40px;color:var(--text-sub)}.loading .spin{width:30px;height:30px;border:3.5px solid #FFE3C2;border-top-color:var(--primary);border-radius:50%;animation:rot .8s linear infinite;margin:0 auto 12px}@keyframes rot{to{transform:rotate(360deg)}}.grid{display:grid;grid-template-columns:1fr;gap:14px}@media (min-width: 620px){.grid{grid-template-columns:1fr 1fr}}.bar{height:9px;background:#f7ebdd;border-radius:99px;overflow:hidden}.bar>i{display:block;height:100%;background:var(--grad-main);border-radius:99px}.content-card{background:var(--card);border-radius:var(--r-lg);box-shadow:var(--shadow);padding:18px;margin-bottom:14px;position:relative;overflow:visible}.content-card:before{content:"";position:absolute;top:0;left:0;right:0;height:5px;background:var(--grad-main);opacity:0}.content-card.hot:before{opacity:1}.content-card .en{font-size:20px;font-weight:800;line-height:1.5;word-break:break-word;color:#3d342c}.content-card .zh{color:var(--text-sub);margin-top:5px;font-size:14px}.content-card .pho{color:#3b7ee8;font-size:13px;margin-top:2px;font-weight:600}.content-card .tip{background:#fff4e3;border-radius:13px;padding:10px 14px;font-size:13px;margin-top:12px;color:#8a5a22}.content-card .tip b{color:var(--primary-deep)}.content-card .child-resp{background:#e4f7f3;border-radius:13px;padding:10px 14px;font-size:13px;margin-top:8px;color:#176b5c}.content-card .child-resp b{color:var(--green-deep)}.content-card .actions{display:flex;gap:10px;margin-top:14px}.content-card .actions .btn{flex:1;font-size:13.5px;padding:10px 8px}.play-btn{width:42px;height:42px;border-radius:50%;border:none;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;background:#e7f0ff;color:#3b7ee8;box-shadow:0 4px 10px #4d96ff38}.play-btn:active{transform:scale(.92)}.play-btn.slow{background:#e1f6f2;color:var(--green-deep);box-shadow:0 4px 10px #2ec4b638}.type-ico{min-width:42px;height:42px;padding:0 8px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;flex-shrink:0}.badge{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;min-width:52px;padding:5px 14px;font-weight:800;font-size:14px}.badge-L0{background:#f0eeec;color:#8a8278}.badge-L1{background:#e7f0ff;color:#3b7ee8}.badge-L2{background:#e1f6f2;color:var(--green-deep)}.badge-L3{background:#fff3d6;color:#c98a12}.badge-L4{background:#ffe9ee;color:#e8607c}.chips{display:flex;gap:8px;overflow-x:auto;padding:2px 0 14px;white-space:nowrap;scrollbar-width:none}.chips::-webkit-scrollbar{display:none}.chip{border:none;cursor:pointer;border-radius:999px;padding:8px 16px;font-size:13px;font-weight:600;background:#fff;color:var(--text-sub);border:1.5px solid var(--border);font-family:inherit;flex-shrink:0}.chip.active{background:var(--grad-main);color:#fff;border-color:transparent;box-shadow:0 4px 12px #ff8e3c4d}.cloud{position:absolute;opacity:.5;pointer-events:none;z-index:0}@media (min-width: 620px){html{font-size:16px}.page{padding:0 24px calc(var(--tabbar-h) + 44px)}.card,.content-card{padding:22px}.content-card .en{font-size:23px}}.tier-inline{display:none}@media (max-width: 619px){.tier-top{display:none}.tier-inline{display:block;margin:5px 0 2px}.word-row{flex-wrap:wrap}.word-main{flex:1 1 100%}.word-main .en{font-size:20px}.phonics{max-width:none;flex:1 1 auto}.content-card{padding:14px;margin-bottom:12px;border-radius:18px}.content-card .en{font-size:18px}.content-card .zh{font-size:13px}.cc-meta{flex-wrap:wrap}.chips{overflow-x:auto;-webkit-overflow-scrolling:touch}.chip{padding:7px 13px;font-size:12.5px}.content-card .actions{gap:7px}.content-card .actions .btn{font-size:12.5px;padding:9px 6px}}