/* ============ Apple 风 · 青春活力版 ============ */
:root{
  --primary:#8B5CF6;            /* 香芋紫(取自设计稿) */
  --primary-d:#7A4CE6;
  --grad:linear-gradient(135deg,#5B7CFA 0%,#9B6BFA 55%,#FF7EB3 100%); /* 蓝紫粉渐变 */
  --bg:#F2F3F8;                 /* 冷调浅灰(取自设计稿) */
  --card:#ffffff;
  --card2:#F2F3F8;
  --text:#1d1d1f;
  --text2:#86868b;
  --border:#e8e8ed;
  --green:#34c759;
  --red:#ff3b30;
  --orange:#ff9500;
  --pink:#ff375f;
  --purple:#9B6BFA;
  --teal:#64d2ff;
  --shadow:0 4px 20px rgba(0,0,0,.06);
  --shadow-lg:0 12px 40px rgba(0,0,0,.12);
  /* 皮肤系统扩展变量(主题可覆盖) */
  --glass:rgba(255,255,255,.85);       /* 底部导航/输入栏毛玻璃 */
  --glass-strong:rgba(255,255,255,.75);/* 登录卡片毛玻璃 */
  --solid:rgba(255,255,255,.97);       /* 抽屉/弹层近乎不透明 */
  --tint:rgba(139,92,246,.1);          /* 主色淡背景(标签/徽标) */
  --tint-06:rgba(139,92,246,.06);
  --ghost-border:rgba(139,92,246,.35);
  --ring:rgba(139,92,246,.12);
  --iconbg:linear-gradient(135deg,#EAF0FF,#F3EFFF);
  --progress-bg:#EEF0F6;
  --thead:#fafafc;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"SF Pro SC","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--text);font-size:15px;-webkit-font-smoothing:antialiased}
button{cursor:pointer;border:none;border-radius:980px;font-size:15px;transition:all .2s cubic-bezier(.4,0,.2,1)}
input,select,textarea{font-size:15px;padding:11px 16px;border:1px solid var(--border);border-radius:14px;width:100%;background:var(--card);color:var(--text)}
input::placeholder,textarea::placeholder{color:var(--text2);opacity:.75}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px var(--ring)}
.btn{background:var(--primary);color:#fff;padding:11px 24px;font-weight:600;letter-spacing:.2px}
.btn:hover{background:var(--primary-d);transform:scale(1.02);box-shadow:0 6px 20px var(--ring)}
.btn:active{transform:scale(.98)}
.btn-ghost{background:var(--card);color:var(--primary);border:1px solid var(--ghost-border);padding:11px 24px;font-weight:500}
.btn-ghost:hover{background:var(--tint-06)}
.btn-sm{padding:7px 16px;font-size:13px}
.btn-danger{background:var(--card);color:var(--red);border:1px solid rgba(255,59,48,.35)}
.btn-danger:hover{background:var(--red);color:#fff}
.card{background:var(--card);border-radius:20px;padding:20px;margin-bottom:14px;box-shadow:var(--shadow)}
.muted{color:var(--text2);font-size:13px}
.tag{display:inline-block;padding:4px 12px;border-radius:980px;font-size:12px;font-weight:500;background:var(--tint);color:var(--primary)}
.tag-green{background:rgba(52,199,89,.12);color:#248a3d}
.tag-orange{background:rgba(255,149,0,.12);color:#c93400}
table{width:100%;border-collapse:separate;border-spacing:0;background:var(--card);border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}
th,td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--border);font-size:14px}
th{background:var(--thead);color:var(--text2);font-weight:600;font-size:13px}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:var(--thead)}
.hidden{display:none!important}

/* ---------- 登录页 ---------- */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(160deg,#EEF1FB 0%,#F6EFF9 45%,#FDF0F4 100%)}
.login-box{background:var(--glass-strong);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);
  border:1px solid rgba(255,255,255,.8);border-radius:28px;padding:44px 38px;width:400px;max-width:92vw;box-shadow:var(--shadow-lg)}
.login-box h1{font-size:26px;font-weight:700;margin-bottom:6px;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.login-box .sub{color:var(--text2);margin-bottom:28px;font-size:14px}
.login-box input{margin-bottom:14px;background:rgba(255,255,255,.9)}
.login-box .btn{width:100%;padding:13px;background:var(--grad);border-radius:16px;font-size:16px}
.login-box .btn:hover{opacity:.92;transform:scale(1.01);box-shadow:0 8px 24px rgba(140,100,250,.35)}
.forgot-row{margin-top:14px;text-align:center}
.forgot-row a{font-size:12.5px;color:var(--text2);text-decoration:none}
.forgot-row a:hover{color:var(--primary)}
.fp-hint{font-size:12.5px;color:var(--text2);margin:-8px 0 12px;line-height:1.7}
.fp-hint b{color:var(--primary)}
.fp-resend{font-size:12px;color:var(--text2);margin:-6px 0 4px}
.fp-resend a{color:var(--primary);text-decoration:none;cursor:pointer}
.err{color:var(--red);font-size:13px;margin-bottom:10px;min-height:18px}

/* ---------- H5 主播端 ---------- */
.h5-page{max-width:480px;margin:0 auto;min-height:100vh;background:var(--bg);padding-bottom:80px}
.h5-header{background:var(--grad);color:#fff;padding:16px 20px 14px;border-radius:0 0 28px 28px;box-shadow:0 8px 30px rgba(140,100,250,.3);text-align:center}
.h5-brand{font-size:13px;font-weight:600;letter-spacing:.5px;color:rgba(255,255,255,.92)}
.h5-header h2{font-size:20px;font-weight:800;margin-top:0;margin-bottom:6px}
.h5-header .muted{color:rgba(255,255,255,.85)}
.h5-header .h5-sub{font-size:11px;line-height:1.5;margin-top:3px}
.h5-body{padding:14px}
.tabbar{position:fixed;bottom:0;left:0;right:0;max-width:480px;margin:0 auto;height:58px;
  background:var(--glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-top:1px solid var(--border);display:flex;z-index:10}
.tabbar button{flex:1;background:none;padding:5px 0;font-size:11px;color:var(--text2);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;border-radius:0;font-weight:500}
.tabbar button .ico{font-size:21px;filter:grayscale(.7);opacity:.6}
.tabbar button.on{color:var(--primary)}
/* 保险:图标基础尺寸(即使 h5.css 加载失败也不至于图标消失) */
.tabbar button svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;display:block}
.tabbar button.on .ico{filter:none;opacity:1;transform:scale(1.15)}
.course-item{display:flex;gap:13px;align-items:center}
.course-icon{width:48px;height:48px;border-radius:14px;background:var(--iconbg);
  display:flex;align-items:center;justify-content:center;font-size:22px;flex-shrink:0}
.progress{height:7px;background:var(--progress-bg);border-radius:4px;overflow:hidden;margin-top:8px}
.progress i{display:block;height:100%;background:var(--grad);border-radius:4px}
.q-opt{display:block;width:100%;text-align:left;background:var(--card);border:1.5px solid var(--border);color:var(--text);
  padding:14px 16px;border-radius:16px;margin-bottom:10px;box-shadow:0 2px 8px rgba(0,0,0,.03)}
.q-opt:hover{border-color:var(--text2)}
.q-opt.sel{border-color:var(--primary);background:var(--tint-06);color:var(--primary);font-weight:500}
.q-opt.right{border-color:var(--green);background:rgba(52,199,89,.08)}
.q-opt.wrong{border-color:var(--red);background:rgba(255,59,48,.06)}
.score-big{font-size:56px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;text-align:center}
.chat-box{display:flex;flex-direction:column;gap:10px;padding:14px}
/* AI 聊天页:底部要给 输入栏(含三栏切换)+ 底部导航 + 手机键盘留出空间。
   注意:h5.css 里用 #appView.h5-page.chatting 按"实测输入栏高度"动态覆盖这条,
   改这里不会影响主播端聊天页 —— 改留白请改 h5.css 的 --chat-reserve 相关规则 */
.h5-page.chatting{padding-bottom:225px}
.chat-msg{max-width:85%;padding:12px 16px;border-radius:20px;line-height:1.7;white-space:pre-wrap;box-shadow:0 2px 8px rgba(0,0,0,.04)}
.chat-msg.me{align-self:flex-end;background:var(--primary);color:#fff;border-bottom-right-radius:6px}
.chat-msg.ai{align-self:flex-start;background:var(--card);border-bottom-left-radius:6px}
.chat-input{position:fixed;bottom:58px;left:0;right:0;max-width:480px;margin:0 auto;
  display:flex;flex-direction:column;gap:8px;padding:10px 14px;
  background:var(--glass);backdrop-filter:blur(20px);z-index:11;border-top:1px solid var(--border)}
.chat-input .btn{border-radius:14px}
.chat-input-row{display:flex;gap:8px;align-items:center}
.chat-input-row input{flex:1;min-width:0}
/* AI 教练分栏切换(固定在底部输入栏上方,聊多久都一点就到) */
.ai-modes{display:flex;gap:6px;padding:2px 2px 0;overflow-x:auto;-webkit-overflow-scrolling:touch}
.ai-modes::-webkit-scrollbar{display:none}
.ai-mode{flex:0 0 auto;border:1px solid var(--border);background:var(--card);color:var(--text2);
  border-radius:14px;padding:7px 13px;font-size:13px;font-weight:500;white-space:nowrap;cursor:pointer}
.ai-mode.on{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 4px 12px rgba(120,90,255,.25)}
/* 聊天里的图片 */
.chat-imgs{display:flex;flex-wrap:wrap;gap:6px}
.chat-imgs img{width:108px;height:108px;object-fit:cover;border-radius:12px;display:block;cursor:pointer}
.chat-msg .chat-txt{margin-top:8px}
/* 输入栏里的待发图片 */
.chat-cam{flex:0 0 auto;width:42px;height:42px;border-radius:14px;background:var(--card);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;font-size:19px;cursor:pointer}
.chat-picks{display:flex;gap:8px;overflow-x:auto;padding:2px 0}
.chat-picks::-webkit-scrollbar{display:none}
.chat-pick{position:relative;flex:0 0 auto}
.chat-pick img{width:56px;height:56px;object-fit:cover;border-radius:12px;display:block}
.chat-pick button{position:absolute;top:-5px;right:-5px;width:19px;height:19px;border:none;border-radius:50%;
  background:rgba(0,0,0,.62);color:#fff;font-size:11px;line-height:1;display:flex;align-items:center;justify-content:center;cursor:pointer}
.h5-page.chatting.chat-haspick{padding-bottom:292px}
/* 历史记录的栏目筛选与徽标 */
.ai-hist-modes{display:flex;gap:6px;padding:10px 14px 0;overflow-x:auto}
.ai-hist-modes::-webkit-scrollbar{display:none}
.ai-hist-modes button{flex:0 0 auto;border:1px solid var(--border);background:var(--card);color:var(--text2);
  border-radius:12px;padding:5px 11px;font-size:12px;cursor:pointer;white-space:nowrap}
.ai-hist-modes button.on{background:var(--primary);color:#fff;border-color:transparent}
.ai-hist-mode{display:inline-block;font-size:11px;color:var(--primary);background:var(--tint);
  border-radius:8px;padding:1px 7px;margin-left:6px;font-weight:500}
.ai-hist-imgs{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.ai-hist-imgs img{width:64px;height:64px;object-fit:cover;border-radius:10px;border:1px solid var(--border)}
/* AI 教练页顶部栏 */
.ai-topbar{display:flex;justify-content:space-between;align-items:center;padding:12px 14px 2px}
.ai-topbar-title{font-weight:600}
.ai-topbar-right{display:flex;align-items:center;gap:8px}
.ai-hist-btn{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:6px 12px;font-size:13px;color:var(--primary);font-weight:500}
/* AI 积分角标(点它去"我的"充值) */
.ai-coin{display:inline-flex;align-items:center;gap:4px;background:linear-gradient(120deg,#fff7e6,#ffeccc);
  border:1px solid rgba(255,149,0,.35);color:#c93400;border-radius:14px;padding:6px 11px;font-size:13px;font-weight:600;cursor:pointer}
.ai-coin b{font-weight:700}
.ai-coin.empty{background:rgba(255,59,48,.08);border-color:rgba(255,59,48,.35);color:#d70015;animation:coinBlink 1.6s ease-in-out infinite}
@keyframes coinBlink{50%{opacity:.55}}
/* 单次消耗提示(跟在 AI 气泡下面) */
.chat-cost{align-self:flex-start;font-size:11px;color:var(--text2);background:rgba(0,0,0,.03);
  border-radius:10px;padding:3px 9px;margin-top:-4px}
/* "我的"里的积分卡 */
.coin-num{font-size:34px;font-weight:800;margin:8px 0 4px;
  background:linear-gradient(120deg,#ff9500,#ff375f);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.coin-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.coin-grid>div{background:var(--card2);border-radius:14px;padding:12px 6px;text-align:center}
.coin-grid b{display:block;font-size:17px;font-weight:700;color:var(--text)}
.coin-grid span{font-size:11px;color:var(--text2)}
/* AI 历史对话侧边抽屉 */
.ai-hist-mask{position:fixed;inset:0;background:rgba(0,0,0,.3);z-index:30;display:flex;justify-content:flex-end}
.ai-hist-panel{width:88%;max-width:400px;height:100%;background:var(--solid);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);display:flex;flex-direction:column;
  box-shadow:-8px 0 30px rgba(0,0,0,.12);animation:histIn .22s ease}
@keyframes histIn{from{transform:translateX(100%)}to{transform:translateX(0)}}
.ai-hist-head{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:16px 16px 12px;border-bottom:1px solid var(--border)}
.ai-hist-search{padding:10px 14px 4px}
.ai-hist-search input{width:100%;background:var(--card2);border:1px solid var(--border);border-radius:12px;padding:9px 12px;font-size:14px}
.ai-hist-body{flex:1;overflow-y:auto;padding:12px 14px 40px;display:flex;flex-direction:column;gap:8px}
.ai-hist-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:12px 14px;font-size:14px;line-height:1.7;box-shadow:0 2px 8px rgba(0,0,0,.03)}
.ai-hist-card-time{font-size:12px;color:var(--text2);margin-bottom:8px}
.ai-hist-tag{display:inline-block;font-size:11px;font-weight:600;color:var(--primary);background:var(--tint);border-radius:6px;padding:1px 6px;margin-right:6px}
.ai-hist-tag.ai{color:#7A4CE6;background:rgba(139,92,246,.1)}
.ai-hist-q{font-weight:500;white-space:pre-wrap;word-break:break-word;margin-bottom:10px}
.ai-hist-text{white-space:pre-wrap;word-break:break-word;color:var(--text2);padding-top:10px;border-top:1px dashed var(--border)}
.ai-hist-text.clamp{display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}
.ai-hist-more{font-size:12px;color:var(--primary);margin-top:6px;cursor:pointer}
.ai-hist-continue{margin-top:10px;background:linear-gradient(135deg,#6C7CF8,#B36BFA);color:#fff;border-radius:12px;
  padding:8px 0;text-align:center;font-size:13px;font-weight:600;cursor:pointer;-webkit-tap-highlight-color:transparent}
.ai-hist-continue:active{opacity:.8}
.ai-hist-hit{background:linear-gradient(180deg,transparent 55%,rgba(255,214,10,.45) 55%);font-weight:600}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.stat-cell{background:var(--card2);border-radius:16px;padding:18px 12px;text-align:center;color:var(--text2);font-size:12px}
.stat-cell b{display:block;font-size:26px;font-weight:700;margin-bottom:4px;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* ---------- 管理端 ---------- */
.admin-layout{display:flex;min-height:100vh}
.sidebar{width:216px;background:rgba(250,250,252,.8);backdrop-filter:blur(20px);
  border-right:1px solid var(--border);color:var(--text2);padding:22px 12px;flex-shrink:0}
.sidebar h1{font-size:17px;font-weight:700;padding:0 12px 18px;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.sidebar h1 .sub{display:block;font-size:11px;font-weight:600;letter-spacing:2px;margin-top:4px;
  -webkit-text-fill-color:#A0A3B1;background:none}
.sidebar button{display:block;width:100%;text-align:left;background:none;color:var(--text2);
  padding:11px 14px;font-size:14px;border-radius:12px;margin-bottom:2px;font-weight:500}
.sidebar button:hover{color:var(--text);background:rgba(0,0,0,.04)}
.sidebar button.nav-sub{padding-left:38px;font-size:13px;opacity:.85}
/* 侧边栏父级/子集折叠组:点父级展开子集,再点收起;子项激活时父级标题跟着着色 */
.nav-parent{position:relative;font-weight:600}
.nav-parent .caret{
  position:absolute;right:14px;top:50%;transform:translateY(-50%);
  font-style:normal;font-size:10px;color:var(--text2);transition:transform .2s ease;
}
.nav-group.open .nav-parent .caret{transform:translateY(-50%) rotate(180deg)}
.nav-children{display:none}
.nav-group.open .nav-children{display:block}
.nav-children button{padding-left:38px;font-size:13px;opacity:.85}
.nav-group:has(.on) > .nav-parent{color:var(--primary)}
/* 三级导航:渠道孙级(如 AI 中枢 → 知行主播成长平台 → 对话记录) */
.nav-subgroup{margin:1px 0}
.nav-subgroup > .nav-parent{padding-left:38px;font-size:13px;font-weight:500;opacity:.9}
.nav-subgroup > .nav-parent .caret{right:16px}
.nav-subgroup.open > .nav-parent .caret{transform:translateY(-50%) rotate(180deg)}
.nav-sub{display:none}
.nav-subgroup.open .nav-sub{display:block}
.nav-sub button{padding-left:58px;font-size:12.5px;opacity:.8}
.nav-subgroup:has(.on) > .nav-parent{color:var(--primary)}
@media(max-width:640px){
  .nav-parent .caret{display:none}
  .nav-children{display:block}
  .nav-children button{padding-left:0;text-align:center;font-size:19px}
}
.sidebar button.on{color:var(--primary);background:rgba(139,92,246,.1)}
.main{flex:1;padding:28px;overflow-x:auto}
.main h2{margin-bottom:20px;font-size:23px;font-weight:700}
.stat-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:16px;margin-bottom:22px}
.stat-card{background:var(--card);border-radius:20px;padding:22px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.stat-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad)}
.stat-card .num{font-size:32px;font-weight:800;color:var(--text)}
.stat-card .lbl{color:var(--text2);font-size:13px;margin-top:5px}
.toolbar{display:flex;gap:12px;margin-bottom:16px;flex-wrap:wrap;align-items:center}
.toolbar input,.toolbar select{width:auto}
.modal-mask{position:fixed;inset:0;background:rgba(0,0,0,.3);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  display:flex;align-items:center;justify-content:center;z-index:100}
.modal{background:var(--card);border-radius:24px;padding:28px;width:520px;max-width:94vw;max-height:86vh;overflow-y:auto;box-shadow:var(--shadow-lg)}
.modal h3{margin-bottom:20px;font-size:19px}
.modal .row{margin-bottom:14px}
.modal .row label{display:block;font-size:13px;color:var(--text2);margin-bottom:6px;font-weight:500}
.modal .btns{display:flex;justify-content:flex-end;gap:12px;margin-top:22px}
@media(max-width:640px){.sidebar{width:64px;padding:16px 8px}.sidebar h1{display:none}.sidebar button{padding:13px 0;text-align:center;font-size:19px}.sidebar button span{display:none}}

/* 管理后台侧边栏收起/展开:拉手贴在侧边栏右边缘垂直居中,收起后拉手贴屏幕左缘 */
.sidebar{transition:width .25s ease,padding .25s ease;overflow:hidden}
.sidebar button{white-space:nowrap}
body.sb-collapsed .sidebar{width:0;padding-left:0;padding-right:0;border-right:none}
.side-toggle{
  position:fixed;top:50%;left:216px;transform:translateY(-50%);z-index:60;
  width:20px;height:58px;padding:0;border:1px solid var(--border);border-left:none;border-radius:0 12px 12px 0;
  background:var(--card);color:var(--text2);cursor:pointer;font-size:14px;line-height:1;
  transition:left .25s ease;box-shadow:3px 0 12px rgba(60,70,140,.1);
}
.side-toggle:hover{color:var(--primary);background:var(--tint-06)}
body.sb-collapsed .side-toggle{left:0}
@media(max-width:640px){.side-toggle{left:64px}body.sb-collapsed .side-toggle{left:0}}

/* ---------- 课后感想 ---------- */
.hw-mask{position:fixed;inset:0;background:rgba(0,0,0,.45);backdrop-filter:blur(4px);z-index:200;display:flex;align-items:flex-end;justify-content:center}
.hw-panel{background:var(--card);width:100%;max-width:480px;max-height:88vh;overflow-y:auto;border-radius:22px 22px 0 0;padding:18px 18px 26px}
.hw-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.hw-head b{font-size:17px}
.hw-close{background:var(--card2);width:30px;height:30px;border-radius:50%;font-size:14px;color:var(--text2)}
.hw-panel textarea{width:100%;margin-bottom:12px}
.hw-upload-row{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.hw-upload-btn{display:inline-block;background:rgba(139,92,246,.08);color:var(--primary);border:1px dashed rgba(139,92,246,.35);
  padding:10px 16px;border-radius:12px;font-size:14px;cursor:pointer}
.hw-thumbs{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0}
.hw-thumbs img{width:74px;height:74px;object-fit:cover;border-radius:10px;cursor:pointer}
.hw-thumb{position:relative;width:74px;height:74px}
.hw-thumb img{width:100%;height:100%}
.hw-del{position:absolute;top:-6px;right:-6px;width:20px;height:20px;border-radius:50%;background:var(--red);color:#fff;font-size:11px;display:flex;align-items:center;justify-content:center}
.hw-feedback{background:rgba(52,199,89,.1);border-radius:10px;padding:10px 12px;font-size:13px;color:#248a3d;margin:8px 0;line-height:1.6}
.hw-anon{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text2);margin-bottom:10px}
.hw-comment{border:1px solid var(--border);border-radius:14px;padding:12px 14px;margin-bottom:10px}
.hw-comment-head{display:flex;justify-content:space-between;margin-bottom:6px}
.hw-comment-head b{color:var(--primary)}
.admin-hw-imgs img{width:64px;height:64px;object-fit:cover;border-radius:8px;margin:4px 6px 0 0;cursor:pointer;border:1px solid var(--border)}
.admin-hw-item{border:1px solid var(--border);border-radius:12px;padding:12px;margin-bottom:10px}
@media(max-width:640px){.hw-mask{align-items:flex-end}}

/* 激活码 */
.code-mono{font-family:Consolas,"SF Mono",Menlo,monospace;letter-spacing:.5px;font-size:13px;white-space:nowrap}
.code-mono button{padding:2px 8px;font-size:13px}
.tag-red{background:rgba(255,59,48,.12);color:#d70015}
.code-used{text-decoration:line-through;color:#8e8e93;opacity:.55}
.code-row-used td{color:#8e8e93}
.price-edit{cursor:pointer;border-bottom:1px dashed var(--primary);padding-bottom:1px}
.price-edit:hover{color:var(--primary)}
input[placeholder*="激活码"]{text-transform:uppercase}

/* ---------- 成长墙 ---------- */
.wall-tabs{display:flex;gap:6px;margin-bottom:12px;background:var(--card,#fff);border:1px solid var(--border);border-radius:14px;padding:5px}
.wall-tabs button{flex:1;border:none;background:transparent;padding:10px 4px;border-radius:10px;font-size:13px;color:var(--text2);cursor:pointer;font-weight:600}
.wall-tabs button.on{background:var(--primary);color:#fff;box-shadow:0 2px 8px rgba(155,107,250,.3)}
.wall-hint{font-size:12px;color:var(--text2);margin:0 2px 10px;line-height:1.5}
.tag-pin{background:rgba(255,149,0,.15);color:#c93400;font-weight:600}
.tag-official{background:rgba(91,124,250,.15);color:#5B7CFA;font-weight:600}
.tag-op{background:rgba(139,92,246,.15);color:var(--primary);font-weight:600}
.tag-mode{background:rgba(155,107,250,.15);color:#7A4CE6;font-weight:600}

/* ---------- 后台:AI Token 用量 ---------- */
.token-mono{font-family:Consolas,"SF Mono",Menlo,monospace;font-size:12px;letter-spacing:.3px}
.token-codes{display:flex;flex-wrap:wrap;gap:6px;max-height:180px;overflow-y:auto}
.token-codes span{background:rgba(255,149,0,.1);color:#c93400;border-radius:8px;padding:4px 9px;font-size:12px;font-weight:600}
.token-bar{height:8px;border-radius:6px;background:#ececf0;overflow:hidden;margin-top:6px}
.token-bar i{display:block;height:100%;background:linear-gradient(90deg,#ff9500,#ff375f)}
.mini-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:10px}
.mini-card{background:var(--card2);border-radius:14px;padding:12px;text-align:center}
.mini-card b{display:block;font-size:19px;font-weight:700}
.mini-card span{font-size:12px;color:var(--text2)}

/* ---------- 注册 ---------- */
.reg-tip{margin-top:14px;font-size:13px;color:var(--text2)}
.reg-tip a{color:var(--primary);font-weight:600;text-decoration:none}
.reg-row{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.reg-row label{width:76px;font-size:13px;color:var(--text2);flex-shrink:0;text-align:right}
.reg-row input,.reg-row select{flex:1;margin-bottom:0}
.eye-btn{position:absolute;right:6px;top:50%;transform:translateY(-50%);background:none;border:none;cursor:pointer;font-size:16px;padding:4px;line-height:1}
.reg-agree{display:flex;justify-content:center;margin:4px 0 12px}
.reg-agree label{display:flex;align-items:center;gap:8px;width:auto;font-size:13px;font-weight:400;color:var(--text2);cursor:pointer;text-align:left;line-height:1.5}
.reg-agree input[type=checkbox]{width:17px;height:17px;flex:none;margin:0;accent-color:#8B5CF6;cursor:pointer}
.reg-agree a{color:var(--primary);text-decoration:underline;cursor:pointer}
.staff-h5 .h5-header{background:linear-gradient(135deg,#5B7CFA,#9B6BFA)}

/* ---------- 居中弹窗(替代原生alert,iOS风) ---------- */
#h5ToastMask,#h5ConfirmMask{position:fixed;inset:0;background:rgba(0,0,0,.28);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  display:flex;align-items:center;justify-content:center;z-index:999;animation:toastFade .18s ease}
.h5-toast{background:rgba(255,255,255,.92);backdrop-filter:blur(28px);-webkit-backdrop-filter:blur(28px);
  border:1px solid rgba(255,255,255,.7);border-radius:26px;padding:26px 24px 18px;width:300px;max-width:84vw;
  text-align:center;box-shadow:0 18px 60px rgba(0,0,0,.18);animation:toastPop .24s cubic-bezier(.34,1.4,.64,1)}
@keyframes toastFade{from{opacity:0}to{opacity:1}}
@keyframes toastPop{from{transform:scale(.82);opacity:0}to{transform:scale(1);opacity:1}}
.h5-toast-ico{font-size:40px;line-height:1;margin-bottom:12px}
.h5-toast-txt{font-size:15px;color:var(--text,#1c1c1e);line-height:1.7;white-space:pre-line;word-break:break-all}
.h5-toast-btn{margin-top:16px;width:100%;background:var(--grad,linear-gradient(135deg,#5B7CFA,#9B6BFA));color:#fff;
  border:none;border-radius:980px;padding:11px 0;font-size:15px;font-weight:600;cursor:pointer}
.h5-toast-btn:active{transform:scale(.97)}
.h5-confirm-row{display:flex;gap:10px;margin-top:16px}
.h5-confirm-cancel,.h5-confirm-ok{flex:1;border:none;border-radius:980px;padding:11px 0;font-size:15px;font-weight:600;cursor:pointer}
.h5-confirm-cancel{background:rgba(120,120,128,.12);color:var(--text2,#6e6e73)}
.h5-confirm-cancel:active{transform:scale(.97)}
.h5-confirm-ok{background:var(--grad,linear-gradient(135deg,#5B7CFA,#9B6BFA));color:#fff}
.h5-confirm-ok:active{transform:scale(.97)}

/* ============================================================
   皮肤主题系统(主播端"我的 → 皮肤装扮"切换,8 套:4 风格 + 4 季节)
   用法:body 加 .theme-xxx 类即可整体换肤,存账号跟着人走
   ============================================================ */

/* 🍎 苹果极简:纯白灰 + 经典蓝,冷静克制 */
body.theme-apple{
  --primary:#0071e3;--primary-d:#0060c9;
  --grad:linear-gradient(120deg,#0071e3,#42a5f5 55%,#90caf9);
  --bg:#f7f7f8;--card:#ffffff;--card2:#f2f2f4;
  --text:#1d1d1f;--text2:#86868b;--border:#e6e6ea;
  --tint:rgba(0,113,227,.09);--tint-06:rgba(0,113,227,.05);
  --ghost-border:rgba(0,113,227,.3);--ring:rgba(0,113,227,.12);
  --iconbg:linear-gradient(135deg,#eef3f8,#e8eef4);
}

/* 🌸 二次元:樱粉香芋紫,软萌高饱和 */
body.theme-anime{
  --primary:#ff5c8a;--primary-d:#f0406f;
  --grad:linear-gradient(120deg,#ff8fab,#c86bff 50%,#8ec5ff);
  --bg:#fff1f7;--card:#ffffff;--card2:#fff3f9;
  --text:#43283a;--text2:#b17d95;--border:#ffd9e9;
  --tint:rgba(255,92,138,.1);--tint-06:rgba(255,92,138,.06);
  --ghost-border:rgba(255,92,138,.35);--ring:rgba(255,92,138,.14);
  --iconbg:linear-gradient(135deg,#ffe3ef,#f3e6ff);
  --thead:#fff5fa;--progress-bg:#ffe4ef;
  --shadow:0 4px 20px rgba(255,92,138,.1);
  --shadow-lg:0 12px 40px rgba(255,92,138,.18);
}

/* 🌌 银河系:深空蓝紫 + 星河 + 地球蓝,科技感(暗色) */
body.theme-galaxy{
  --primary:#6d8bff;--primary-d:#5a6ff0;
  --grad:linear-gradient(120deg,#4f6ef7,#8b5cf6 50%,#38bdf8);
  --bg:#0a0e23;--card:#131a36;--card2:#1a2244;
  --text:#e9edfb;--text2:#8b93c4;--border:#26305c;
  --tint:rgba(109,139,255,.14);--tint-06:rgba(109,139,255,.07);
  --ghost-border:rgba(109,139,255,.4);--ring:rgba(109,139,255,.16);
  --glass:rgba(19,26,54,.88);--glass-strong:rgba(16,22,48,.82);--solid:rgba(14,19,42,.98);
  --iconbg:linear-gradient(135deg,#1c2450,#283267);
  --thead:#181f42;--progress-bg:#232c58;
  --shadow:0 4px 20px rgba(0,0,0,.5);--shadow-lg:0 12px 40px rgba(0,0,0,.65);
}
body.theme-galaxy .tag-green{background:rgba(72,255,180,.14);color:#6dffc4}
body.theme-galaxy .tag-orange,body.theme-galaxy .tag-pin{background:rgba(255,215,106,.14);color:#ffd76a}
body.theme-galaxy .tag-red{background:rgba(255,99,88,.16);color:#ff8a80}
body.theme-galaxy .tag-mode{background:rgba(139,92,246,.2);color:#c4b5fd}
body.theme-galaxy .tag-official{background:rgba(56,189,248,.14);color:#7dd3fc}
body.theme-galaxy .login-wrap{background:linear-gradient(160deg,#0a0e23 0%,#131a3d 45%,#1a1040 75%,#0a0e23 100%)}
body.theme-galaxy .login-box{border-color:rgba(109,139,255,.3)}
body.theme-galaxy .login-box input{background:rgba(255,255,255,.05)}
body.theme-galaxy .ai-hist-tag.ai{color:#c4b5fd;background:rgba(139,92,246,.16)}
body.theme-galaxy .ai-hist-continue{background:linear-gradient(135deg,#38bdf8,#8b5cf6)}
body.theme-galaxy .ai-coin{background:rgba(56,189,248,.1);color:#7dd3fc}
body.theme-galaxy .coin-num{background:linear-gradient(120deg,#38bdf8,#ffd76a);-webkit-background-clip:text;background-clip:text}
body.theme-galaxy .wall-tabs{background:var(--card)}
/* hero 渐变卡:星空(多层星点) + 右上角发光地球 + 底部星云 */
body.theme-galaxy .h5-header{
  position:relative;overflow:hidden;
  background:
    radial-gradient(1.6px 1.6px at 18% 28%,rgba(255,255,255,.95),transparent 100%),
    radial-gradient(1px 1px at 68% 16%,rgba(255,255,255,.85),transparent 100%),
    radial-gradient(1.4px 1.4px at 87% 34%,rgba(255,255,255,.8),transparent 100%),
    radial-gradient(1px 1px at 42% 68%,rgba(255,255,255,.75),transparent 100%),
    radial-gradient(1.2px 1.2px at 10% 62%,rgba(255,255,255,.7),transparent 100%),
    radial-gradient(1px 1px at 55% 82%,rgba(255,255,255,.65),transparent 100%),
    radial-gradient(1.2px 1.2px at 78% 74%,rgba(255,215,106,.8),transparent 100%),
    radial-gradient(1px 1px at 30% 12%,rgba(255,255,255,.8),transparent 100%),
    radial-gradient(circle at 90% 110%,rgba(139,92,246,.55),transparent 55%),
    radial-gradient(circle at 0% 120%,rgba(56,189,248,.4),transparent 50%),
    var(--grad);
  box-shadow:0 8px 30px rgba(80,110,247,.4);
}
body.theme-galaxy .h5-header::before{   /* 地球:右上角,带高光和大气层光晕 */
  content:"";position:absolute;right:16px;top:10px;width:24px;height:24px;border-radius:50%;
  background:radial-gradient(circle at 34% 30%,#a5e8ff 0%,#38bdf8 38%,#1e5dd8 72%,#123087 100%);
  box-shadow:0 0 12px rgba(56,189,248,.65),inset -4px -3px 7px rgba(6,22,80,.6);
  opacity:.95;
}
/* ---- 暗色适配:把写死白底的组件转成深空蓝,修复文字看不清 ---- */
body.theme-galaxy .chip{background:#1a2244;color:#c9d2f5;border-color:#26305c}
body.theme-galaxy .chip.on{color:#fff;border-color:transparent}
body.theme-galaxy #tab-ai .chat-msg.ai{background:#1a2244;color:#e9edfb;box-shadow:0 8px 28px rgba(0,0,0,.35)}
body.theme-galaxy #tab-ai .chat-msg.ai .chat-txt{color:#e9edfb}
body.theme-galaxy .menu{background:#131a36;box-shadow:0 8px 28px rgba(0,0,0,.4)}
body.theme-galaxy .menu-item:active{background:#1a2244}
body.theme-galaxy .menu-item .arr{color:#414d85}
body.theme-galaxy .mind{background:#131a36;box-shadow:0 8px 28px rgba(0,0,0,.4)}
body.theme-galaxy .wall-hint{background:rgba(26,34,68,.78);color:#c9d2f5}
body.theme-galaxy .tabbar{background:rgba(13,18,40,.92);border-top:1px solid #26305c}
body.theme-galaxy .tabbar button{color:#69719c}
body.theme-galaxy .tabbar button.on{color:#8fa8ff}
body.theme-galaxy .chat-input-row .field{background:#1a2244;box-shadow:0 8px 28px rgba(0,0,0,.35)}
body.theme-galaxy .chat-input-row .field input{color:#e9edfb}
body.theme-galaxy .course .pbar{background:#232c58}
body.theme-galaxy .go-sm.ghost{background:#1a2244;color:#c9d2f5}
body.theme-galaxy .cm-box textarea:focus{background:#1a2244;color:#e9edfb}
body.theme-galaxy .ai-hist-btn{background:#1a2244;border-color:#26305c;color:#c9d2f5}
body.theme-galaxy .h5-sub{color:rgba(255,255,255,.92)}
/* ---- 银河装饰:三张渐变大卡(学习hero/每日挑战/我的)统一星空+星系旋臂圈+地球 ---- */
body.theme-galaxy .hero,body.theme-galaxy .daily,body.theme-galaxy .me-hero{
  background:
    radial-gradient(1.6px 1.6px at 16% 24%,rgba(255,255,255,.95),transparent 100%),
    radial-gradient(1px 1px at 64% 14%,rgba(255,255,255,.85),transparent 100%),
    radial-gradient(1.4px 1.4px at 86% 30%,rgba(255,255,255,.8),transparent 100%),
    radial-gradient(1px 1px at 38% 62%,rgba(255,255,255,.75),transparent 100%),
    radial-gradient(1.2px 1.2px at 8% 58%,rgba(255,255,255,.7),transparent 100%),
    radial-gradient(1px 1px at 52% 86%,rgba(255,255,255,.65),transparent 100%),
    radial-gradient(1.4px 1.4px at 74% 70%,rgba(255,215,106,.85),transparent 100%),
    radial-gradient(1px 1px at 28% 10%,rgba(255,255,255,.8),transparent 100%),
    radial-gradient(circle at 88% 115%,rgba(139,92,246,.5),transparent 55%),
    radial-gradient(circle at -4% 120%,rgba(56,189,248,.38),transparent 50%),
    var(--grad);
}
/* 星系盘:倾斜椭圆轨道环(银河是"圈"的感觉),叠两层轨道+发光星核 */
body.theme-galaxy .hero::after,body.theme-galaxy .daily::after,body.theme-galaxy .me-hero::after{
  content:"";position:absolute;right:-44px;bottom:-26px;width:190px;height:64px;border-radius:50%;
  border:1.5px solid rgba(255,255,255,.4);transform:rotate(-16deg);
  box-shadow:0 0 0 11px rgba(255,255,255,.06),inset 0 0 22px rgba(255,255,255,.12);
}
body.theme-galaxy .hero::before,body.theme-galaxy .daily::before,body.theme-galaxy .me-hero::before{
  content:"";position:absolute;right:36px;bottom:2px;width:10px;height:10px;border-radius:50%;
  background:radial-gradient(circle at 35% 32%,#a5e8ff 0%,#38bdf8 45%,#1e5dd8 100%);
  box-shadow:0 0 10px rgba(56,189,248,.8);
}
body.theme-galaxy .daily button{color:var(--primary-d)}
body.theme-galaxy .hero .go{color:var(--primary-d)}

/* ⚡ 科技霓虹:深空黑 + 霓虹青紫,赛博感(暗色) */
body.theme-tech{
  --primary:#2dd4ff;--primary-d:#19b7e6;
  --grad:linear-gradient(120deg,#2dd4ff,#7c6cff 55%,#f472b6);
  --bg:#0b0f1a;--card:#131a2a;--card2:#1a2336;
  --text:#e6edf7;--text2:#8fa0bf;--border:#243250;
  --tint:rgba(45,212,255,.13);--tint-06:rgba(45,212,255,.07);
  --ghost-border:rgba(45,212,255,.4);--ring:rgba(45,212,255,.18);
  --glass:rgba(19,26,42,.88);--glass-strong:rgba(15,21,35,.82);--solid:rgba(13,18,30,.98);
  --iconbg:linear-gradient(135deg,#152642,#232052);
  --thead:#182136;--progress-bg:#1d2942;
  --shadow:0 4px 20px rgba(0,0,0,.5);--shadow-lg:0 12px 40px rgba(0,0,0,.65);
}
body.theme-tech .tag-green{background:rgba(52,255,168,.14);color:#5cffb9}
body.theme-tech .tag-orange,body.theme-tech .tag-pin{background:rgba(255,184,77,.14);color:#ffc266}
body.theme-tech .tag-red{background:rgba(255,99,88,.16);color:#ff8a80}
body.theme-tech .tag-mode{background:rgba(124,108,255,.18);color:#b3a6ff}
body.theme-tech .tag-official{background:rgba(45,212,255,.14);color:#7fe3ff}
body.theme-tech .login-wrap{background:linear-gradient(160deg,#0b0f1a 0%,#141b33 50%,#0b0f1a 100%)}
body.theme-tech .login-box{border-color:rgba(45,212,255,.25)}
body.theme-tech .login-box input{background:rgba(255,255,255,.05)}
body.theme-tech .ai-hist-tag.ai{color:#b3a6ff;background:rgba(124,108,255,.14)}
body.theme-tech .ai-hist-continue{background:linear-gradient(135deg,#2dd4ff,#7c6cff)}
body.theme-tech .ai-coin{background:rgba(45,212,255,.1);color:#7fe3ff}
body.theme-tech .coin-num{background:linear-gradient(120deg,#2dd4ff,#f472b6);-webkit-background-clip:text;background-clip:text}
body.theme-tech .wall-tabs{background:var(--card)}
body.theme-tech .h5-header{box-shadow:0 8px 30px rgba(45,212,255,.25)}

/* 🌷 春·樱绿:嫩绿 + 樱粉,万物复苏 */
body.theme-spring{
  --primary:#3fae52;--primary-d:#339a45;
  --grad:linear-gradient(120deg,#7ed37f,#b8e6a3 45%,#ffc2d4);
  --bg:#f2faee;--card:#ffffff;--card2:#edf7e9;
  --text:#28402a;--text2:#7f9a7c;--border:#d9ecd6;
  --tint:rgba(63,174,82,.1);--tint-06:rgba(63,174,82,.06);
  --ghost-border:rgba(63,174,82,.32);--ring:rgba(63,174,82,.13);
  --iconbg:linear-gradient(135deg,#e4f6dd,#ffe6ef);
  --thead:#f3faf0;--progress-bg:#e2f1dc;
}

/* 🌊 夏·海风:海蓝 + 青柠,清爽透亮 */
body.theme-summer{
  --primary:#0a9dc4;--primary-d:#0786a8;
  --grad:linear-gradient(120deg,#28b8e0,#54cfcb 50%,#a4dd6b);
  --bg:#edf8fc;--card:#ffffff;--card2:#e8f5fa;
  --text:#123b4a;--text2:#6f9aab;--border:#d2ecf4;
  --tint:rgba(10,157,196,.1);--tint-06:rgba(10,157,196,.06);
  --ghost-border:rgba(10,157,196,.32);--ring:rgba(10,157,196,.13);
  --iconbg:linear-gradient(135deg,#dff3fb,#e9f8dd);
  --thead:#f0f8fc;--progress-bg:#d9eef5;
}

/* 🍁 秋·暖橙:枫叶橙 + 暖棕,温柔治愈 */
body.theme-autumn{
  --primary:#cf6b1d;--primary-d:#b85a12;
  --grad:linear-gradient(120deg,#e8863a,#f0b45f 50%,#c05f2a);
  --bg:#faf3ea;--card:#ffffff;--card2:#f6ecdf;
  --text:#46301d;--text2:#a08a70;--border:#ecdcc6;
  --tint:rgba(207,107,29,.1);--tint-06:rgba(207,107,29,.06);
  --ghost-border:rgba(207,107,29,.32);--ring:rgba(207,107,29,.13);
  --iconbg:linear-gradient(135deg,#fdeedd,#fde8d8);
  --thead:#faf2e6;--progress-bg:#f0e2cd;
}

/* ❄️ 冬·初雪:冰雪蓝白,干净清冷 */
body.theme-winter{
  --primary:#3e7cb1;--primary-d:#2f6a9c;
  --grad:linear-gradient(120deg,#6aa9e9,#8fd0e8 50%,#c9e4f5);
  --bg:#eff5fa;--card:#ffffff;--card2:#e9f1f8;
  --text:#22374d;--text2:#7b93ab;--border:#d7e5f0;
  --tint:rgba(62,124,177,.1);--tint-06:rgba(62,124,177,.06);
  --ghost-border:rgba(62,124,177,.32);--ring:rgba(62,124,177,.13);
  --iconbg:linear-gradient(135deg,#e3eefa,#e0f2fa);
  --thead:#f1f6fb;--progress-bg:#dfeaf3;
}

/* ---------- 皮肤选择页 ---------- */
.theme-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}
.theme-card{background:var(--card);border:2px solid var(--border);border-radius:18px;padding:12px;cursor:pointer;
  transition:all .18s ease;position:relative}
.theme-card:active{transform:scale(.97)}
.theme-card.on{border-color:var(--primary);box-shadow:0 0 0 4px var(--tint-06)}
.theme-swatch{height:64px;border-radius:12px;margin-bottom:9px;position:relative;overflow:hidden}
.theme-swatch i{position:absolute;inset:0;background:var(--swatch)}
.theme-swatch em{position:absolute;left:9px;bottom:7px;font-style:normal;font-size:15px}
.theme-card b{display:block;font-size:14px;color:var(--text)}
.theme-card .muted{font-size:11px;margin-top:2px;line-height:1.4}
.theme-card .on-mark{position:absolute;top:9px;right:9px;background:var(--primary);color:#fff;
  width:20px;height:20px;border-radius:50%;font-size:11px;display:flex;align-items:center;justify-content:center}

/* ---------- 设置页(改登录名/密码/绑定邮箱) ---------- */
.set-label{font-size:13px;color:var(--text2);margin:12px 0 6px;font-weight:500}
.set-row{display:flex;gap:8px;align-items:center}
.set-row input{flex:1;min-width:0}
.set-sep{height:1px;background:var(--border);margin:16px 0}
.email-state{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.me-entry{display:flex;align-items:center;gap:12px;padding:14px 4px;border-bottom:1px solid var(--border);cursor:pointer}
.me-entry:last-child{border-bottom:none}
.me-entry:active{background:var(--tint-06)}
.me-entry .ico{width:38px;height:38px;border-radius:12px;background:var(--iconbg);display:flex;align-items:center;justify-content:center;font-size:19px;flex-shrink:0}
.me-entry .txt{flex:1}
.me-entry .txt b{display:block;font-size:15px}
.me-entry .txt .muted{font-size:12px;margin-top:1px}
.me-entry .arrow{color:var(--text2);font-size:14px}

/* ---------- 弹窗修复:卡片恒为白底,文字固定深色(暗色皮肤 tech/galaxy 下不再隐形) ---------- */
.h5-toast-txt{color:#1c1c1e !important}
.h5-confirm-cancel{color:#6e6e73 !important}