:root{
  --bg:#0a0620; --bg2:#160a3a;
  --c1:#ff2d95; --c2:#7b2dff; --c3:#00e5ff; --c4:#ffd60a; --c5:#38ff9e;
  --txt:#fff; --dim:#b9a8e8;
  --r:18px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%;margin:0}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  color:var(--txt);background:var(--bg);overflow:hidden;
  user-select:none;
}
#bgfx{position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(1200px 700px at 15% 10%, #3a0d6b 0%, transparent 60%),
    radial-gradient(1000px 800px at 85% 20%, #062a5e 0%, transparent 62%),
    radial-gradient(900px 700px at 50% 100%, #5a0b3d 0%, transparent 60%),
    linear-gradient(160deg,#0a0620,#160a3a 60%,#0a0620);
}
#bgfx::after{content:"";position:absolute;inset:0;opacity:.35;
  background-image:radial-gradient(2px 2px at 20% 30%,#fff,transparent),radial-gradient(2px 2px at 70% 60%,#fff,transparent),radial-gradient(1.5px 1.5px at 40% 80%,#fff,transparent),radial-gradient(2px 2px at 85% 20%,#fff,transparent);
  animation:tw 6s ease-in-out infinite}
@keyframes tw{0%,100%{opacity:.18}50%{opacity:.45}}

.screen{position:relative;z-index:1;display:none;height:100%}
.screen.active{display:flex;flex-direction:column}

/* ---------- 通用控件 ---------- */
.btn{border:0;cursor:pointer;color:#fff;font-weight:800;font-size:16px;padding:14px 22px;border-radius:999px;
  background:linear-gradient(135deg,var(--c1),var(--c2));box-shadow:0 8px 22px rgba(255,45,149,.35);
  transition:transform .12s,box-shadow .2s;letter-spacing:1px}
.btn:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 12px 30px rgba(255,45,149,.5)}
.btn:active{transform:scale(.96)}
.btn-main{width:100%;background:linear-gradient(135deg,#ff2d95,#7b2dff 55%,#00e5ff);font-size:19px;padding:16px}
.btn-soft{background:rgba(255,255,255,.14);box-shadow:none;border:1px solid rgba(255,255,255,.22);font-weight:600}
.btn-gold{background:linear-gradient(135deg,#ffd60a,#ff8a00);color:#2a1400;box-shadow:0 8px 22px rgba(255,160,0,.35)}
.btn-red{background:linear-gradient(135deg,#ff2d55,#8a0020);box-shadow:0 8px 20px rgba(255,45,85,.3)}
.btn-mini{padding:9px 15px;font-size:14px;font-weight:700}
.inp{width:100%;padding:13px 15px;border-radius:14px;border:1.5px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.08);color:#fff;font-size:15px;outline:none;user-select:text}
.inp:focus{border-color:var(--c3);box-shadow:0 0 0 4px rgba(0,229,255,.15);background:rgba(255,255,255,.12)}
.inp::placeholder{color:rgba(255,255,255,.4)}
.inp.center{text-align:center}
.inp.ta{resize:vertical;line-height:1.7}
select.sel{width:auto;min-width:150px;appearance:none;padding-right:34px;
  background-image:linear-gradient(45deg,transparent 50%,#fff 50%),linear-gradient(135deg,#fff 50%,transparent 50%);
  background-position:calc(100% - 18px) 21px,calc(100% - 13px) 21px;background-size:5px 5px;background-repeat:no-repeat}
select.sel option{background:#1b1040;color:#fff}
.hidden{display:none !important}
.card{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.13);border-radius:24px;
  backdrop-filter:blur(14px);box-shadow:0 20px 60px rgba(0,0,0,.45)}
.err{color:#ff8095;font-size:13px;min-height:18px;text-align:center;margin-top:8px;font-weight:600}

/* ---------- 登录 ---------- */
#authScreen{overflow:auto;align-items:center;justify-content:center}
.auth-wrap{width:min(430px,94vw);padding:40px 0;text-align:center}
.logo-burst{width:110px;height:110px;margin:0 auto 14px;border-radius:50%;display:grid;place-items:center;
  font-size:52px;font-weight:900;background:conic-gradient(from 0deg,#ff2d95,#7b2dff,#00e5ff,#38ff9e,#ffd60a,#ff2d95);
  box-shadow:0 0 0 6px rgba(255,255,255,.08),0 0 60px rgba(255,45,149,.6);
  animation:spin 9s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.title-glow{font-size:44px;margin:6px 0 2px;font-weight:900;letter-spacing:4px;
  background:linear-gradient(90deg,#fff,#00e5ff,#ffd60a,#ff2d95,#fff);background-size:300% 100%;
  -webkit-background-clip:text;background-clip:text;color:transparent;animation:flow 6s linear infinite;
  filter:drop-shadow(0 4px 18px rgba(255,45,149,.55))}
@keyframes flow{to{background-position:300% 0}}
.sub{color:var(--dim);letter-spacing:3px;font-size:12px;margin:0 0 26px}
.auth-card{padding:22px}
.tabs{display:flex;gap:8px;background:rgba(0,0,0,.3);padding:6px;border-radius:999px;margin-bottom:20px}
.tab{flex:1;border:0;background:transparent;color:var(--dim);font-weight:800;padding:11px;border-radius:999px;cursor:pointer;font-size:15px}
.tab.active{background:linear-gradient(135deg,var(--c1),var(--c2));color:#fff;box-shadow:0 6px 18px rgba(255,45,149,.4)}
.pane{display:flex;flex-direction:column;gap:12px}

/* ---------- 顶栏 ---------- */
#topbar{display:flex;align-items:center;gap:10px;padding:12px 16px;padding-top:calc(12px + env(safe-area-inset-top));
  background:rgba(10,6,32,.6);backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.1);z-index:5}
.brand{font-weight:900;font-size:20px;letter-spacing:1px;cursor:pointer;white-space:nowrap;flex:none;
  background:linear-gradient(90deg,#00e5ff,#ff2d95);-webkit-background-clip:text;background-clip:text;color:transparent}
.spacer{flex:1;min-width:0}
.who{font-weight:700;font-size:14px;display:flex;align-items:center;gap:6px;min-width:0;flex:none}
.who #whoName{white-space:nowrap}
.supertag{font-size:11px;flex:none;white-space:nowrap;
  background:linear-gradient(135deg,#ffd60a,#ff8a00);color:#2a1400;padding:3px 9px;border-radius:999px;font-weight:900}
.ico{width:38px;height:38px;flex:none;border-radius:12px;border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.08);
  color:#fff;font-size:17px;cursor:pointer}
.ico:active{transform:scale(.9)}
#views{flex:1;min-height:0;position:relative}
.view{position:absolute;inset:0;display:none;flex-direction:column;padding:14px}
.view.active{display:flex}

/* ---------- 任务列表 ---------- */
.row-bar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
.task-list{flex:1;overflow:auto;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px;align-content:start;padding-bottom:20px}
.task-item{border-radius:20px;padding:16px;cursor:pointer;position:relative;overflow:hidden;
  background:linear-gradient(135deg,rgba(255,45,149,.22),rgba(123,45,255,.18));border:1px solid rgba(255,255,255,.16);
  transition:transform .15s,box-shadow .2s}
.task-item:hover{transform:translateY(-3px) scale(1.015);box-shadow:0 14px 34px rgba(123,45,255,.4)}
.task-item .tn{font-weight:800;font-size:15px;line-height:1.4;margin-bottom:8px;user-select:text}
.task-item .tm{font-size:12px;color:var(--dim)}
.task-item .del{position:absolute;top:8px;right:8px;width:28px;height:28px;border-radius:9px;border:0;background:rgba(0,0,0,.4);color:#ff8a9c;cursor:pointer;font-size:14px}
.empty{padding:40px;text-align:center;color:var(--dim);grid-column:1/-1}

/* ---------- 背诵台 ---------- */
.play-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.task-title{font-weight:900;font-size:17px;flex:1;min-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  background:linear-gradient(90deg,#00e5ff,#ffd60a);-webkit-background-clip:text;background-clip:text;color:transparent}
.pills{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.pill{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:6px 13px;font-size:13px}
.pill b{color:#fff;font-size:15px}
.pill.ok b{color:var(--c5)}
.stage{flex:1;min-height:0;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.pane-side{border-radius:22px;padding:12px;display:flex;flex-direction:column;min-height:0;position:relative;overflow:hidden;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12)}
.pane-side.left{background:linear-gradient(160deg,rgba(123,45,255,.2),rgba(10,6,32,.5))}
.pane-side.right{background:linear-gradient(160deg,rgba(0,229,255,.14),rgba(10,6,32,.5))}
.pane-side.right.tinted{background:linear-gradient(160deg,var(--rc1,rgba(0,229,255,.14)),rgba(10,6,32,.55))}
.pane-side.right.tinted .side-head{color:var(--rc2,#8ff3ff)}
.search-row{display:flex;gap:8px;margin-bottom:10px;flex:none}
.side-head{font-weight:900;font-size:14px;letter-spacing:2px;color:#8ff3ff;margin-bottom:10px;flex:none;text-align:center}
.pane-side.right.tight .side-head{font-size:12px;margin-bottom:6px;letter-spacing:1px}
.pane-side.right.tight{padding:9px}
.float-zone{flex:1;position:relative;min-height:0;overflow:hidden;border-radius:14px}
.empty-hint{position:absolute;inset:0;display:none;place-items:center;font-size:20px;font-weight:800;color:var(--c5);text-align:center;padding:20px}
.empty-hint.show{display:grid}

/* 漂浮姓名卡 */
.float-card{position:absolute;padding:10px 20px;border-radius:16px;cursor:pointer;font-weight:900;font-size:19px;color:#fff;
  background:linear-gradient(135deg,#ff2d95,#7b2dff);border:2px solid rgba(255,255,255,.5);
  box-shadow:0 10px 26px rgba(0,0,0,.45),0 0 22px rgba(255,45,149,.4);white-space:nowrap;will-change:transform;
  animation:bob 3.4s ease-in-out infinite;transition:box-shadow .2s;text-shadow:0 2px 6px rgba(0,0,0,.5)}
.float-card:nth-child(3n){background:linear-gradient(135deg,#00e5ff,#2d7bff);animation-duration:2.8s}
.float-card:nth-child(3n+1){animation-duration:4.1s}
.float-card:nth-child(4n){background:linear-gradient(135deg,#ffd60a,#ff6a00);color:#2a1400;animation-duration:3.1s}
.float-card:nth-child(5n){background:linear-gradient(135deg,#38ff9e,#00b3a4);color:#04302a}
@keyframes bob{0%,100%{transform:translateY(0) rotate(var(--rot,0deg))}50%{transform:translateY(-14px) rotate(var(--rot,0deg))}}
.float-card.sel{animation:bounceSel .55s ease-in-out infinite;z-index:30;
  box-shadow:0 0 0 4px var(--c4),0 0 46px 12px rgba(255,214,10,.75);transform:scale(1.22);filter:brightness(1.2)}
@keyframes bounceSel{0%,100%{transform:scale(1.22) translateY(0)}50%{transform:scale(1.3) translateY(-16px)}}
.float-card.pop{animation:popOut .5s ease-out forwards;pointer-events:none}
@keyframes popOut{0%{transform:scale(1)}35%{transform:scale(1.6);filter:brightness(2.4) saturate(2)}100%{transform:scale(0) rotate(180deg);opacity:0}}
.float-card.dim{opacity:.18;filter:grayscale(1);pointer-events:none}

/* 右侧完成列表 */
/* 右侧完成列表 —— 尺寸全部由 --ds 缩放系数驱动，JS 按人数+窗口高度实时计算，
   保证无论窗口大小、多少人都能一屏完整显示全部姓名方块（仅在极限情况下才滚动） */
.done-list{
  flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;
  display:grid;grid-auto-rows:var(--rowH,34px);grid-auto-flow:row;align-content:start;
  gap:calc(9px * var(--ds,1));padding-bottom:calc(10px * var(--ds,1));-webkit-overflow-scrolling:touch}
.done-list .done-item{
  display:flex;align-items:center;min-height:0;
  /* 间距随行高/列宽收缩：空间越紧张，padding/gap 越紧凑，把空间让给文字 */
  gap:min(calc(11px * var(--ds,1)), calc(var(--rowH,34px) * 0.2), calc(var(--perChar,16px) * 0.4));
  padding:0 min(calc(13px * var(--ds,1)), calc(var(--rowH,34px) * 0.24), calc(var(--perChar,16px) * 0.5));
  border-radius:min(calc(16px * var(--ds,1)), calc(var(--rowH,34px) * 0.4));
  cursor:pointer;overflow:hidden;
  /* 按完成顺序循环彩虹配色（由 JS 按序号注入 --c1/--c2/--c3） */
  background:linear-gradient(135deg,var(--c1,rgba(56,255,158,.18)),var(--c2,rgba(0,229,255,.12)));
  border:1px solid var(--c3,rgba(255,255,255,.18));
  box-shadow:0 2px 10px var(--c4,rgba(0,0,0,0));
  /* 左侧色条：从上到下颜色连续推进，一眼看出先后顺序 */
  border-left:min(calc(4px * var(--ds,1)), calc(var(--rowH,34px) * 0.09)) solid var(--n1,var(--c1));
  animation:slideIn .4s cubic-bezier(.2,1.4,.4,1)}
/* 每完成一人，色条递增，用色相连续变化表达顺序 */
.done-item::before{
  content:"";flex:none;width:min(calc(4px * var(--ds,1)), calc(var(--rowH,34px) * 0.09));
  align-self:stretch;
  margin-left:calc(-1 * min(calc(14px * var(--ds,1)), calc(var(--rowH,34px) * 0.26)));
  background:linear-gradient(180deg,var(--n1),var(--n2));border-radius:99px;opacity:.95}
@keyframes slideIn{from{opacity:0;transform:translateX(50px) scale(.8)}to{opacity:1;transform:none}}
.done-item:active{transform:scale(.96)}
/* 多列时（人数多）用更紧凑的方块，圆圈与文字同步缩小 */
.done-item .no{
  flex:none;border-radius:50%;display:grid;place-items:center;font-weight:900;color:#04302a;
  width:auto;height:100%;aspect-ratio:1;
  max-width:calc(var(--rowH,34px) * 0.86);max-height:calc(var(--rowH,34px) * 0.86);
  min-width:0;min-height:0;
  font-size:min(calc(15px * var(--ds,1)), calc(var(--rowH,34px) * 0.52));
  background:linear-gradient(135deg,var(--n1,#38ff9e),var(--n2,#00e5ff));
  box-shadow:0 3px 10px var(--n3,rgba(56,255,158,.45))}
.done-item .nm{font-weight:800;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;line-height:1.15}
.done-item .tm{
  font-size:min(calc(var(--rowH,34px) * 0.42),
               calc(var(--perChar,16px) * 0.8));
  flex:none;white-space:nowrap;font-weight:700;line-height:1.2;
  color:rgba(255,255,255,.85);background:rgba(0,0,0,.3);border:1px solid rgba(255,255,255,.16);
  padding:0 min(calc(7px * var(--ds,1)), calc(var(--perChar,16px) * 0.35));
  border-radius:99px;letter-spacing:.2px}
.done-item .rm{font-size:min(calc(12px * var(--ds,1)), calc(var(--rowH,34px) * 0.5));color:#ff8a9c;flex:none;white-space:nowrap;opacity:.75}
/* 缩得很小或多列时只隐藏「移除」文字，完成时间始终保留（教学需要看几点几分完成的） */
.done-list.mini .done-item .rm{display:none}
/* 多列时同样隐藏「移除」文字，把宽度让给姓名（姓名比"移除"重要得多） */
.done-list.multicol .done-item .rm{display:none}
/* 多列时收紧内边距与间距，并适当缩小序号圆圈 */
.done-list.multicol .done-item{padding-left:calc(11px * var(--ds,1));padding-right:calc(7px * var(--ds,1));gap:calc(7px * var(--ds,1))}
.done-list.multicol .done-item::before{margin-left:calc(-8px * var(--ds,1))}
.done-list.multicol .done-item .no{max-height:calc(26px * var(--ds,1))}
/* 3 列及以上：姓名优先 —— 隐藏完成时间与"移除"，把整行宽度让给姓名 */
.done-list.three .done-item{flex-wrap:nowrap;align-content:center}
/* ===== 姓名优先：3 列及以上隐藏完成时间，把宽度全部让给姓名 ===== */
/* 「移除」按钮在四列下始终隐藏（宽度让给姓名与时间） */
.done-list.notime .done-item .rm{display:none}
/* 5 列：序号改为紧凑药丸角标，把整行宽度让给姓名（padding/gap 继承基础规则，已随行高收缩） */
.done-list.five .done-item .no{width:auto;height:auto;aspect-ratio:auto;max-width:none;max-height:none;
  min-width:0;padding:0 min(calc(4px * var(--ds,1)), calc(var(--perChar,16px) * 0.25));border-radius:99px;
  font-size:min(calc(var(--rowH,34px) * 0.5), calc(var(--perChar,16px) * 0.55))}
/* 姓名字号：同时受"行高"和"列宽"双重约束（min 取最小值）——
   保证既不垂直溢出方框，也不会因字太宽而水平截断。
   三个字的中文姓名约需 字号×3 的宽度，系数 0.32 留出序号/内边距空间。 */
.done-list .done-item .nm{
  font-size:min(calc(var(--rowH,34px) * 0.72), var(--perChar,16px));
  line-height:1.1}
/* 行高不够三层时（横向模式）：序号与姓名并排，时间换到第二行居中。
   三者都保留，且时间不与姓名抢横向宽度。 */
.done-list.five:not(.tallish) .done-item{flex-wrap:wrap;align-content:center;row-gap:calc(1px * var(--ds,1))}
.done-list.five:not(.tallish) .done-item .no{order:1;flex:none;
  font-size:min(calc(var(--rowH,34px) * 0.34), calc(var(--perChar,16px) * 0.55));
  min-width:calc(9px * var(--ds,1));padding:0 calc(3px * var(--ds,1));line-height:1.1}
.done-list.five:not(.tallish) .done-item .nm{order:2;flex:1 1 auto;min-width:0;text-align:left;
  font-size:min(var(--perChar,16px), calc(var(--rowH,34px) * 0.34))}
.done-list.five:not(.tallish) .done-item .tm{order:3;flex:1 1 100%;text-align:center;margin:0;
  font-size:min(calc(var(--rowH,34px) * 0.24), calc(var(--perChar,16px) * 0.8));
  padding:0 calc(4px * var(--ds,1));background:rgba(0,0,0,.26);line-height:1.2}
/* ===== 四列模式核心排版 =====
   四列时列宽很窄（约 70-100px），"序号 + 姓名"横向排列必然放不下 3 字中文姓名。
   行高充裕（>=22px）时改为纵向三层：序号角标 / 姓名 / 完成时间，层层都能拿到整列宽度。 */
.done-list.five.tallish .done-item{flex-direction:column;justify-content:center;align-items:center;
  gap:calc(1px * var(--ds,1));padding:0 calc(3px * var(--ds,1))}
.done-list.five.tallish .done-item::before{display:none}
.done-list.five.tallish .done-item .no{order:1;flex:none;max-width:none;max-height:none;
  min-width:calc(13px * var(--ds,1));padding:0 calc(4px * var(--ds,1));
  font-size:min(calc(var(--rowH,34px) * 0.19), calc(var(--perChar,16px) * 0.7));line-height:1.1}
.done-list.five.tallish .done-item .nm{order:2;flex:none;width:100%;text-align:center;
  font-size:min(calc(var(--rowH,34px) * 0.30), var(--perChar,16px))}
/* 完成时间排在第三行，居中显示，不与姓名抢横向空间 */
.done-list.five.tallish .done-item .tm{order:3;flex:none;margin-top:0;
  font-size:min(calc(var(--rowH,34px) * 0.17), calc(var(--perChar,16px) * 0.8));
  padding:0 calc(3px * var(--ds,1));background:rgba(0,0,0,.26);line-height:1.15}
.done-item.gold .no{background:linear-gradient(135deg,#ffd60a,#ff8a00);color:#2a1400}
.confetti-layer{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:60}
.cfti{position:absolute;width:11px;height:16px;border-radius:2px;animation:fall linear forwards}
@keyframes fall{0%{transform:translateY(-20px) rotate(0);opacity:1}100%{transform:translateY(105vh) rotate(760deg);opacity:.1}}

/* ---------- 管理页 ---------- */
.mgmt-hint{font-size:12px;color:var(--dim)}
.sec-title{margin:22px 0 10px;font-size:16px;color:#8ff3ff;letter-spacing:1px}
.stu-list,.inv-list{display:flex;flex-direction:column;gap:8px;min-height:0}
.mgmt{flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;padding:18px}
/* 任务主页面：任务列表占满可用高度 */
#viewTasks .task-list{flex:1;min-height:0;overflow:auto;padding-bottom:6px}
/* 班级管理页：整页统一滚动，卡片按内容自然高度 */
#viewClasses{overflow-y:auto;overflow-x:hidden}
#viewClasses .mgmt{flex:none;overflow:visible}
.stu-row{display:flex;align-items:center;gap:8px;padding:11px 14px;border-radius:14px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);min-width:0;overflow:hidden}
.stu-row .nm{flex:1;min-width:0;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.stu-row .mini{flex:none;min-width:0;height:32px;padding:0 10px;border-radius:9px;border:0;background:rgba(255,255,255,.1);color:#fff;cursor:pointer;font-size:13px;white-space:nowrap}
.stu-row .mini.ok{background:linear-gradient(135deg,#38ff9e,#00b3a4);color:#04302a}
.stu-row .mini.danger{background:linear-gradient(135deg,#ff7a7a,#e03a4e);color:#fff;font-weight:700}
.code-chip{font-family:ui-monospace,Menlo,monospace;font-size:17px;font-weight:800;letter-spacing:2px;user-select:text;white-space:nowrap;flex:none;
  background:linear-gradient(90deg,#00e5ff,#7b2dff);-webkit-background-clip:text;background-clip:text;color:transparent}
.badge{font-size:11px;flex:0 1 auto;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:3px 9px;border-radius:999px;background:rgba(255,255,255,.12);color:var(--dim)}
.badge.gold{background:linear-gradient(135deg,#ffd60a,#ff8a00);color:#2a1400;font-weight:800}

/* ---------- 弹窗 ---------- */
.modal{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:20px;
  background:rgba(4,2,14,.72);backdrop-filter:blur(6px)}
.modal.show{display:flex}
.modal-card{width:min(400px,94vw);padding:26px 22px;border-radius:26px;text-align:center;animation:pop .3s cubic-bezier(.2,1.5,.4,1);
  background:linear-gradient(160deg,#241056,#120733);border:1px solid rgba(255,255,255,.16);box-shadow:0 30px 80px rgba(0,0,0,.7)}
@keyframes pop{from{transform:scale(.8);opacity:0}to{transform:none;opacity:1}}
.modal-icon{font-size:44px;margin-bottom:6px;animation:pulse 1.2s ease-in-out infinite}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.15)}}
.modal-title{font-weight:900;font-size:19px;margin-bottom:4px}
.modal-sub{color:var(--dim);font-size:13px;margin-bottom:16px}
.modal-btns{display:flex;gap:10px;margin-top:14px}
.modal-btns .btn{flex:1}
#pmText{margin-top:4px}

.toast{position:fixed;left:50%;bottom:38px;transform:translate(-50%,30px);z-index:300;padding:13px 24px;border-radius:999px;
  font-weight:800;font-size:14px;opacity:0;pointer-events:none;transition:.3s;white-space:nowrap;
  background:linear-gradient(135deg,#ff2d95,#7b2dff);box-shadow:0 12px 30px rgba(255,45,149,.45)}
.toast.show{opacity:1;transform:translate(-50%,0)}

@media(max-width:640px){
  .view.active#viewPlay .stage{grid-template-columns:1fr;grid-template-rows:1fr 1fr}
  .title-glow{font-size:34px}
  .brand{font-size:15px;letter-spacing:0}
  .who{font-size:12px;gap:4px}
  .who #whoName{max-width:4em}
  /* 手机版不显示“超级管理员”标签，避免挤压顶栏 */
  .supertag{display:none}
  #topbar{gap:6px;padding:10px 10px;padding-top:calc(10px + env(safe-area-inset-top))}
  .ico{width:34px;height:34px;font-size:15px;border-radius:10px}
  .stu-row{padding:10px}
  .stu-row .mini{padding:0 8px;font-size:12px}
}