/* ===== 英语趣学乐园 · 样式 ===== */
:root{
  --blue:#4C6FFF; --blue-d:#3A56D6; --blue-l:#EAF0FF;
  --green:#22C58B; --green-l:#E4F9F1;
  --orange:#FF8A3D; --orange-l:#FFF0E4;
  --purple:#9B6BFF; --purple-l:#F1EAFF;
  --pink:#FF5C8A; --pink-l:#FFE9F0;
  --yellow:#FFC53D;
  --ink:#22304A; --ink2:#5A6B85; --ink3:#93A0B5;
  --bg:#F5F8FF; --card:#FFFFFF; --line:#E8EDF7;
  --r:18px; --r-lg:24px;
  --sh:0 6px 18px rgba(60,90,160,.10);
  --sh-lg:0 14px 34px rgba(60,90,160,.16);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  background:var(--bg); color:var(--ink); font-size:15px; line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:""; position:fixed; inset:0; z-index:-1;
  background:
    radial-gradient(1000px 500px at 8% -8%, #FFE7C2 0%, transparent 60%),
    radial-gradient(900px 480px at 100% 0%, #DCE7FF 0%, transparent 58%),
    radial-gradient(800px 500px at 50% 110%, #E6FFF5 0%, transparent 60%);
}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;font-size:inherit}
input,select{font-family:inherit;font-size:inherit}
.hidden{display:none !important}

/* ---------- 启动页 ---------- */
.boot{position:fixed;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:var(--bg);z-index:999}
.boot-logo{font-size:64px;animation:bounce 1.4s ease-in-out infinite}
.boot-text{font-size:20px;font-weight:700;color:var(--blue)}
.boot-bar{width:180px;height:8px;border-radius:99px;background:#E3EAFB;overflow:hidden}
.boot-bar i{display:block;height:100%;width:40%;border-radius:99px;background:linear-gradient(90deg,var(--blue),var(--purple));animation:slide 1.1s ease-in-out infinite}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@keyframes slide{0%{margin-left:-40%}100%{margin-left:100%}}

/* ---------- 登录 ---------- */
.view-auth{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px 16px}
.auth-wrap{width:100%;max-width:420px}
.auth-hero{text-align:center;margin-bottom:18px}
.auth-emoji{font-size:56px;animation:bounce 2s ease-in-out infinite}
.auth-hero h1{margin:6px 0 2px;font-size:26px;letter-spacing:1px}
.auth-hero p{margin:0;color:var(--ink2);font-size:13px}
.auth-card{background:var(--card);border-radius:var(--r-lg);box-shadow:var(--sh-lg);padding:18px}
.tabs{display:flex;background:#F0F4FD;border-radius:14px;padding:4px;margin-bottom:16px}
.tab{flex:1;padding:9px 0;border-radius:11px;font-weight:600;color:var(--ink2)}
.tab.active{background:#fff;color:var(--blue);box-shadow:var(--sh)}
.field{display:block;margin-bottom:14px}
.field>span{display:block;font-size:13px;color:var(--ink2);margin-bottom:6px;font-weight:600}
.field input{width:100%;padding:12px 14px;border:2px solid var(--line);border-radius:14px;background:#FAFCFF;outline:none;transition:.15s}
.field input:focus{border-color:var(--blue);background:#fff}
.grade-pick{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.grade-pick button,.avatar-pick button{padding:9px 4px;border:2px solid var(--line);border-radius:12px;background:#FAFCFF;font-size:13px;font-weight:600;color:var(--ink2);transition:.15s}
.grade-pick button.on{border-color:var(--blue);background:var(--blue-l);color:var(--blue)}
.avatar-pick{display:grid;grid-template-columns:repeat(6,1fr);gap:6px}
.avatar-pick button{font-size:22px;padding:6px 0}
.avatar-pick button.on{border-color:var(--orange);background:var(--orange-l)}
.auth-err{min-height:18px;margin:2px 0 8px;color:var(--pink);font-size:13px}
.auth-tip{margin:12px 0 0;text-align:center;font-size:12px;color:var(--ink3)}

/* ---------- 按钮 ---------- */
.btn{border-radius:14px;font-weight:700;transition:.15s;padding:11px 18px}
.btn:active{transform:scale(.97)}
.btn-lg{width:100%;padding:14px;font-size:16px}
.btn-block{width:100%}
.btn-primary{background:linear-gradient(135deg,var(--blue),#6C8BFF);color:#fff;box-shadow:0 6px 16px rgba(76,111,255,.32)}
.btn-orange{background:linear-gradient(135deg,var(--orange),#FFA868);color:#fff;box-shadow:0 6px 16px rgba(255,138,61,.32)}
.btn-green{background:linear-gradient(135deg,var(--green),#4FD9AC);color:#fff;box-shadow:0 6px 16px rgba(34,197,139,.3)}
.btn-purple{background:linear-gradient(135deg,var(--purple),#B98CFF);color:#fff;box-shadow:0 6px 16px rgba(155,107,255,.3)}
.btn-ghost{background:#F0F4FD;color:var(--ink2)}
.btn[disabled]{opacity:.5;pointer-events:none}

/* ---------- 布局 ---------- */
.app{min-height:100vh;display:flex;flex-direction:column}
.topbar{
  position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;
  padding:10px 14px;background:rgba(255,255,255,.86);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:7px;font-weight:800;font-size:16px;color:var(--blue)}
.brand-emoji{font-size:22px}
.top-right{display:flex;align-items:center;gap:8px}
.chip{display:flex;align-items:center;gap:4px;padding:5px 10px;border-radius:99px;font-weight:700;font-size:13px}
.chip-point{background:#FFF6DF;color:#B4790B}
.chip-streak{background:var(--orange-l);color:#C9541A}
.avatar-btn{width:36px;height:36px;border-radius:50%;background:var(--blue-l);font-size:20px;display:flex;align-items:center;justify-content:center}
.main{flex:1;padding:14px 14px 92px;max-width:900px;width:100%;margin:0 auto}
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:30;display:flex;
  background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-top:1px solid var(--line);
  padding:6px 4px calc(6px + env(safe-area-inset-bottom));
}
.tabbar-item{flex:1;display:flex;flex-direction:column;align-items:center;gap:1px;padding:4px 0;color:var(--ink3);font-size:11px}
.tabbar-item i{font-size:21px;font-style:normal;filter:grayscale(1);opacity:.55;transition:.15s}
.tabbar-item.active{color:var(--blue);font-weight:700}
.tabbar-item.active i{filter:none;opacity:1;transform:translateY(-2px)}

/* ---------- 首页 ---------- */
.hello-card{display:flex;align-items:center;justify-content:space-between;background:linear-gradient(135deg,#5C7BFF,#8A6BFF);color:#fff;border-radius:var(--r-lg);padding:16px 18px;box-shadow:var(--sh)}
.hello-name{font-size:19px;font-weight:800}
.hello-sub{font-size:12.5px;opacity:.9}
.hello-avatar{font-size:40px;background:rgba(255,255,255,.22);border-radius:50%;width:58px;height:58px;display:flex;align-items:center;justify-content:center}
.daily-card{margin-top:14px;background:var(--card);border-radius:var(--r-lg);padding:14px 16px;box-shadow:var(--sh)}
.daily-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.daily-title{font-weight:800}
.daily-date{font-size:12px;color:var(--ink3)}
.daily-list{display:flex;flex-direction:column;gap:8px;margin-bottom:12px}
.task{display:flex;align-items:center;gap:10px;background:#F7F9FF;border-radius:14px;padding:9px 12px}
.task.done{background:var(--green-l)}
.task-emoji{font-size:20px}
.task-name{flex:1;font-weight:600;font-size:14px}
.task-val{font-size:13px;font-weight:700;color:var(--ink2)}
.task.done .task-val{color:var(--green)}
.sec-title{margin:20px 0 10px;font-size:16px;font-weight:800}
.mod-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.mod-card{
  display:flex;flex-direction:column;align-items:flex-start;gap:2px;text-align:left;
  padding:16px 14px;border-radius:var(--r-lg);box-shadow:var(--sh);transition:.15s;color:#fff;
}
.mod-card:active{transform:scale(.97)}
.mod-emoji{font-size:30px;margin-bottom:4px}
.mod-name{font-size:16px;font-weight:800}
.mod-desc{font-size:11.5px;opacity:.9}
.c-blue{background:linear-gradient(135deg,#4C6FFF,#7B93FF)}
.c-green{background:linear-gradient(135deg,#22C58B,#57DCAE)}
.c-orange{background:linear-gradient(135deg,#FF8A3D,#FFAC70)}
.c-purple{background:linear-gradient(135deg,#9B6BFF,#BC96FF)}
.board{background:var(--card);border-radius:var(--r-lg);box-shadow:var(--sh);overflow:hidden}
.board-row{display:flex;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid var(--line)}
.board-row:last-child{border-bottom:none}
.board-row.me{background:var(--blue-l)}
.board-rank{width:26px;text-align:center;font-weight:800;color:var(--ink3)}
.board-rank.top{color:var(--orange);font-size:18px}
.board-av{font-size:22px}
.board-name{flex:1;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.board-score{font-weight:800;color:var(--blue)}
.empty{padding:20px;text-align:center;color:var(--ink3);font-size:13px}
.badges{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:10px}
.badge{background:var(--card);border-radius:var(--r);padding:12px 8px;text-align:center;box-shadow:var(--sh);opacity:.42;filter:grayscale(1);transition:.2s}
.badge.on{opacity:1;filter:none}
.badge-e{font-size:28px}
.badge-n{font-size:12px;font-weight:700;margin-top:4px}
.badge-d{font-size:10.5px;color:var(--ink3);line-height:1.35}

/* ---------- 模块页 ---------- */
.mod-head{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.mod-head h2{margin:0;font-size:19px;font-weight:800}
.back-btn{padding:6px 12px;border-radius:99px;background:#fff;box-shadow:var(--sh);font-weight:700;color:var(--ink2)}
.grade-bar,.lesson-bar{display:flex;gap:7px;overflow-x:auto;padding-bottom:6px;margin-bottom:10px;-webkit-overflow-scrolling:touch}
.grade-bar::-webkit-scrollbar,.lesson-bar::-webkit-scrollbar{display:none}
.pill{padding:7px 13px;border-radius:99px;background:#fff;box-shadow:var(--sh);white-space:nowrap;font-size:13px;font-weight:700;color:var(--ink2);flex:none}
.pill.on{background:var(--blue);color:#fff}
.mod-body{margin-top:4px}
.card{background:var(--card);border-radius:var(--r-lg);box-shadow:var(--sh);padding:16px;margin-bottom:12px}
.card-title{font-weight:800;margin-bottom:10px;font-size:15px}

/* 单词卡片 */
.wcard{perspective:900px}
.wcard-inner{position:relative;transition:transform .5s;transform-style:preserve-3d;min-height:190px}
.wcard.flip .wcard-inner{transform:rotateY(180deg)}
.wface{position:absolute;inset:0;backface-visibility:hidden;border-radius:var(--r-lg);box-shadow:var(--sh);padding:18px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:#fff}
.wface.back{transform:rotateY(180deg);background:linear-gradient(135deg,#F3F7FF,#EAF0FF)}
.w-word{font-size:32px;font-weight:800;letter-spacing:.5px;word-break:break-word}
.w-ph{color:var(--ink2);margin-top:4px;font-size:14px}
.w-mean{font-size:24px;font-weight:800;color:var(--blue)}
.w-ex{margin-top:10px;font-size:13px;color:var(--ink2);text-align:left}
.w-ex div{margin-bottom:4px}
.w-tags{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-top:8px}
.tag{padding:3px 9px;border-radius:99px;font-size:11.5px;font-weight:700;background:var(--blue-l);color:var(--blue)}
.tag.g{background:var(--green-l);color:#0E9A6C}
.tag.p{background:var(--pink-l);color:#D63E68}
.tag.o{background:var(--orange-l);color:#C9541A}
.wcard-ctrl{display:flex;gap:8px;margin-top:12px}
.wcard-ctrl .btn{flex:1}
.speak-btn{width:48px;height:48px;border-radius:50%;background:var(--blue-l);font-size:22px;display:flex;align-items:center;justify-content:center;flex:none}

/* 学习进度条 */
.prog{height:8px;border-radius:99px;background:#EDF1FA;overflow:hidden;margin-top:10px}
.prog i{display:block;height:100%;background:linear-gradient(90deg,var(--blue),var(--purple));border-radius:99px;transition:width .4s}
.prog-txt{display:flex;justify-content:space-between;font-size:12px;color:var(--ink2);margin-top:6px}

/* 游戏列表 */
.game-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.game-card{padding:14px;border-radius:var(--r);box-shadow:var(--sh);text-align:center;background:#fff;transition:.15s}
.game-card:active{transform:scale(.97)}
.game-e{font-size:28px}
.game-n{font-weight:800;font-size:14px;margin-top:2px}
.game-d{font-size:11px;color:var(--ink3)}

/* 游戏区 */
#overlay{position:fixed;inset:0;z-index:60;background:rgba(20,30,55,.55);backdrop-filter:blur(4px);display:flex;align-items:flex-end;justify-content:center}
.overlay-box{
  width:100%;max-width:560px;max-height:92vh;overflow-y:auto;background:var(--bg);
  border-radius:26px 26px 0 0;padding:16px 16px calc(20px + env(safe-area-inset-bottom));
  animation:up .28s cubic-bezier(.2,.9,.3,1.2);
}
@keyframes up{from{transform:translateY(60px);opacity:.3}to{transform:none;opacity:1}}
.g-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.g-title{font-weight:800;font-size:17px}
.g-close{width:34px;height:34px;border-radius:50%;background:#fff;box-shadow:var(--sh);font-size:18px;color:var(--ink2)}
.g-stat{display:flex;gap:8px;margin-bottom:12px}
.g-stat div{flex:1;background:#fff;border-radius:14px;padding:8px;text-align:center;box-shadow:var(--sh);font-weight:800;font-size:13px}
.g-stat small{display:block;font-size:11px;color:var(--ink3);font-weight:600}

/* 配对 / 消消乐 */
.match-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:9px}
.tile{padding:14px 8px;border-radius:14px;background:#fff;box-shadow:var(--sh);text-align:center;font-weight:700;font-size:14px;min-height:60px;display:flex;align-items:center;justify-content:center;transition:.15s;word-break:break-word;line-height:1.3}
.tile.sel{background:var(--blue);color:#fff;transform:scale(1.03)}
.tile.ok{background:var(--green);color:#fff;opacity:.55;pointer-events:none}
.tile.bad{animation:shake .35s}
@keyframes shake{0%,100%{transform:none}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}
.crush-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.crush-grid .tile{font-size:13px;min-height:56px;padding:10px 6px}

/* 拼写 / 拼图 */
.spell-word{font-size:28px;font-weight:800;letter-spacing:6px;text-align:center;margin:14px 0;min-height:40px;color:var(--blue)}
.slots{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin:10px 0}
.slot{width:34px;height:42px;border-bottom:3px solid var(--blue);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800}
.slot.f{border-color:var(--green);color:var(--green)}
.letters{display:flex;flex-wrap:wrap;gap:7px;justify-content:center}
.letter{width:38px;height:42px;border-radius:11px;background:#fff;box-shadow:var(--sh);font-weight:800;font-size:18px;display:flex;align-items:center;justify-content:center}
.letter.used{opacity:.25;pointer-events:none}
.big-input{width:100%;padding:13px 14px;border:2px solid var(--line);border-radius:14px;background:#fff;outline:none;font-size:17px;text-align:center;letter-spacing:1px}
.big-input:focus{border-color:var(--blue)}
.big-input.ok{border-color:var(--green);background:var(--green-l)}
.big-input.bad{border-color:var(--pink);background:var(--pink-l);animation:shake .35s}

/* 选项题 */
.q-text{font-weight:700;margin-bottom:10px;font-size:15px}
.opt{display:block;width:100%;text-align:left;padding:12px 14px;border-radius:14px;background:#fff;box-shadow:var(--sh);margin-bottom:8px;font-size:14px;transition:.15s}
.opt.sel{background:var(--blue-l);border:2px solid var(--blue)}
.opt.right{background:var(--green-l);color:#0E9A6C}
.opt.wrong{background:var(--pink-l);color:#C93A63}
.passage{background:#fff;border-radius:var(--r);padding:14px;box-shadow:var(--sh);font-size:15px;line-height:1.85;white-space:pre-wrap}
.passage b{background:#FFF3BF;border-radius:4px;padding:0 2px}
.explain{background:var(--green-l);border-radius:12px;padding:10px 12px;font-size:13px;color:#0E9A6C;margin-top:8px}

/* 口语 */
.sp-target{background:#fff;border-radius:var(--r);padding:16px;box-shadow:var(--sh);font-size:17px;line-height:1.9;text-align:center;white-space:pre-wrap}
.sp-score{text-align:center;margin:14px 0}
.sp-score-num{font-size:52px;font-weight:800;line-height:1}
.sp-stars{font-size:28px;letter-spacing:2px}
.mic-btn{width:88px;height:88px;border-radius:50%;margin:10px auto;display:flex;align-items:center;justify-content:center;font-size:38px;background:linear-gradient(135deg,var(--pink),#FF87A9);color:#fff;box-shadow:0 8px 22px rgba(255,92,138,.4);transition:.2s}
.mic-btn.rec{animation:pulse 1.1s ease-in-out infinite;background:linear-gradient(135deg,#FF4D4D,#FF7A7A)}
@keyframes pulse{0%,100%{transform:scale(1);box-shadow:0 0 0 0 rgba(255,77,77,.5)}50%{transform:scale(1.07);box-shadow:0 0 0 16px rgba(255,77,77,0)}}
.sp-heard{background:#fff;border-radius:12px;padding:10px 12px;font-size:14px;min-height:44px;box-shadow:var(--sh);color:var(--ink2)}
.sp-heard b{color:var(--ink)}
.word-diff{margin-top:10px;background:#fff;border-radius:12px;padding:10px 12px;font-size:13px;box-shadow:var(--sh)}
.mark-ok{color:var(--green);font-weight:800}
.mark-bad{color:var(--pink);font-weight:800;text-decoration:line-through}

/* 结果 */
.result{text-align:center;padding:10px 0}
.result-emoji{font-size:64px;animation:bounce 1.2s ease-in-out infinite}
.result-title{font-size:22px;font-weight:800;margin:6px 0}
.result-sub{color:var(--ink2);margin-bottom:14px}
.result-stats{display:flex;gap:10px;margin:14px 0}
.result-stats div{flex:1;background:#fff;border-radius:16px;padding:12px 6px;box-shadow:var(--sh)}
.result-stats b{display:block;font-size:22px;color:var(--blue)}
.result-stats small{color:var(--ink3);font-size:11.5px}

/* 我的 */
.me-card{display:flex;align-items:center;gap:14px;background:linear-gradient(135deg,#5C7BFF,#8A6BFF);color:#fff;border-radius:var(--r-lg);padding:18px;box-shadow:var(--sh)}
.me-avatar{font-size:44px;background:rgba(255,255,255,.22);border-radius:50%;width:64px;height:64px;display:flex;align-items:center;justify-content:center}
.me-name{font-size:20px;font-weight:800}
.me-meta{font-size:12.5px;opacity:.92}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:14px}
.stat{background:#fff;border-radius:var(--r);padding:14px;box-shadow:var(--sh);text-align:center}
.stat b{display:block;font-size:24px;color:var(--blue)}
.stat span{font-size:12px;color:var(--ink2)}
.report{background:#fff;border-radius:var(--r-lg);padding:14px;box-shadow:var(--sh)}
.rep-row{display:flex;align-items:center;gap:10px;margin-bottom:9px}
.rep-day{width:34px;font-size:12px;color:var(--ink3)}
.rep-bar{flex:1;height:14px;border-radius:99px;background:#F0F4FD;overflow:hidden}
.rep-bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--blue),var(--purple))}
.rep-val{width:44px;text-align:right;font-size:12px;font-weight:800;color:var(--blue)}
.settings{background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh);overflow:hidden;padding:4px 0 12px}
.set-row{display:flex;align-items:center;justify-content:space-between;padding:13px 16px;border-bottom:1px solid var(--line)}
.set-row select{padding:8px 12px;border:2px solid var(--line);border-radius:12px;background:#FAFCFF;outline:none}
.set-row input[type=checkbox]{width:20px;height:20px;accent-color:var(--blue)}
#btn-logout{margin:12px 16px 0;width:calc(100% - 32px);color:var(--pink)}

/* toast */
.toast{position:fixed;left:50%;bottom:96px;transform:translate(-50%,20px);z-index:200;background:rgba(34,48,74,.94);color:#fff;padding:11px 20px;border-radius:99px;font-size:14px;font-weight:600;opacity:0;pointer-events:none;transition:.25s;max-width:80vw;text-align:center}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- 平板 / 桌面 ---------- */
@media (min-width:700px){
  body{font-size:16px}
  .main{padding:20px 20px 100px}
  .mod-grid{grid-template-columns:repeat(4,1fr)}
  .game-grid{grid-template-columns:repeat(3,1fr)}
  .match-grid{grid-template-columns:repeat(3,1fr)}
  .crush-grid{grid-template-columns:repeat(4,1fr)}
  .stat-grid{grid-template-columns:repeat(4,1fr)}
  .overlay-box{border-radius:26px;max-height:88vh;margin:auto}
  #overlay{align-items:center;padding:20px}
  .hello-card,.daily-card{padding:20px 22px}
  .tabbar{max-width:640px;left:50%;transform:translateX(-50%);border-radius:22px 22px 0 0;border:1px solid var(--line);border-bottom:none}
}
@media (min-width:1000px){
  .main{max-width:960px}
}