/* ============================================================
   小升初假期知识检测 · 未来科幻风（Futuristic Sci-Fi HUD）
   设计语言：深空暗色底 + 静态科技网格 + 深色毛玻璃面板 +
   霓虹青/蓝/紫描边与辉光 + 统一交互元素（按钮/计时器/图标）+
   过渡与交互动画。背景不使用流动壁纸。
   ============================================================ */
:root{
  /* 边缘留白（统一居中对齐基准） */
  --edge:14px;
  --bar-h:42px;

  /* 深色文字层级（在暗底上） */
  --ink:#e9f2ff;
  --ink-2:#aab9d6;
  --ink-3:#6c7da0;

  /* 深色毛玻璃（暗色半透明 + 高模糊） */
  --glass-bg:rgba(18,28,54,.42);
  --glass-bg-strong:rgba(22,34,64,.62);
  --glass-bg-soft:rgba(14,22,44,.34);
  --glass-border:rgba(120,180,255,.22);
  --glass-hi:rgba(180,220,255,.45);
  --glass-shadow:0 18px 46px rgba(2,6,20,.55), inset 0 1px 0 rgba(180,220,255,.22);
  --glass-shadow-sm:0 10px 28px rgba(2,6,20,.45), inset 0 1px 0 rgba(180,220,255,.18);

  /* 分隔线 */
  --line:rgba(120,180,255,.16);
  --line-soft:rgba(120,180,255,.09);

  /* 霓虹主色 */
  --cyan:#19e6ff;
  --blue:#2b7bff;
  --violet:#9b6bff;
  --magenta:#ff4dd2;
  --green:#2ff5a8;
  --green-soft:rgba(47,245,168,.16);
  --red:#ff5a6e;
  --red-soft:rgba(255,90,110,.15);
  --orange:#ffae3c;
  --yellow:#ffe14d;

  /* 霓虹渐变主轴 */
  --grad-main:linear-gradient(135deg,#19e6ff 0%,#2b7bff 52%,#9b6bff 100%);
  --grad-neon:linear-gradient(90deg,#19e6ff,#2b7bff,#9b6bff);

  --radius:22px;
  --radius-md:17px;
  --radius-sm:14px;
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","SF Pro Display","PingFang SC","Helvetica Neue","Microsoft YaHei",Arial,sans-serif;
  /* 静态深空背景：上沿微光 + 深蓝黑渐变（不做流动动画） */
  background:
    radial-gradient(120% 70% at 50% -12%, rgba(33,66,128,.55) 0%, rgba(12,20,44,.0) 55%),
    linear-gradient(180deg,#0a1228 0%,#080d1c 55%,#05080f 100%);
  color:var(--ink);
  font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  min-height:100vh;
  position:relative;
  overflow-x:hidden;
  padding-top:var(--bar-h);
}
/* 静态科技网格叠层（不流动） */
body::after{
  content:'';position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(90,150,255,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(90,150,255,.07) 1px, transparent 1px);
  background-size:34px 34px;
  -webkit-mask-image:radial-gradient(130% 120% at 50% 18%, #000 22%, transparent 86%);
          mask-image:radial-gradient(130% 120% at 50% 18%, #000 22%, transparent 86%);
  opacity:.6;
}
/* 角落静态辉光（增强空间纵深，不移动） */
body::before{
  content:'';position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(46% 40% at 12% 8%, rgba(25,230,255,.12), transparent 60%),
    radial-gradient(46% 42% at 90% 92%, rgba(155,107,255,.14), transparent 60%);
}
#app{
  max-width:520px;margin:0 auto;min-height:100vh;
  padding:0 var(--edge) 108px;position:relative;z-index:1
}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:none;background:none;color:inherit}
input{font-family:inherit;font-size:inherit}

/* ---------- 顶部 HUD 状态栏（科幻头） ---------- */
.mac-bar{
  position:fixed;top:0;left:50%;transform:translateX(-50%);
  width:min(520px,100%);z-index:60;
  display:flex;align-items:center;justify-content:space-between;height:var(--bar-h);
  padding:0 16px;
  background:rgba(10,16,34,.66);
  backdrop-filter:blur(22px) saturate(180%);
  -webkit-backdrop-filter:blur(22px) saturate(180%);
  border-bottom:1px solid var(--glass-border);
  box-shadow:0 0 24px rgba(25,230,255,.12);
}
/* 顶部霓虹分隔线 */
.mac-bar::after{
  content:'';position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:var(--grad-neon);opacity:.85;
  box-shadow:0 0 12px rgba(25,230,255,.6)
}
.hud-logo{display:flex;align-items:center;gap:7px;color:var(--cyan)}
.hud-logo svg{width:21px;height:21px;display:block;filter:drop-shadow(0 0 6px rgba(25,230,255,.7))}
.hud-title{
  position:absolute;left:50%;transform:translateX(-50%);
  font-size:13px;font-weight:700;color:var(--ink);letter-spacing:2px;
  white-space:nowrap;pointer-events:none;text-shadow:0 0 12px rgba(25,230,255,.35)
}
.hud-status{display:flex;align-items:center;gap:6px;font-size:10.5px;letter-spacing:1.5px;color:var(--ink-3);font-weight:600}
.hud-status .led{
  width:7px;height:7px;border-radius:50%;background:var(--green);
  box-shadow:0 0 8px var(--green);animation:pulse 2.4s ease-in-out infinite
}

/* ---------- 顶部导航（深色毛玻璃浮动栏） ---------- */
.topbar{
  position:relative;margin:14px 0 0;padding:18px 18px 16px;
  border-radius:var(--radius);
  background:var(--glass-bg-strong);
  backdrop-filter:blur(26px) saturate(180%);
  -webkit-backdrop-filter:blur(26px) saturate(180%);
  border:1px solid var(--glass-border);
  box-shadow:var(--glass-shadow);
  animation:floatIn .45s ease both;
}
.topbar .row{display:flex;justify-content:space-between;align-items:center;gap:12px}
.nav-head{min-width:0}
.topbar h1{
  margin:0;font-size:25px;font-weight:800;letter-spacing:-.4px;color:var(--ink);
  line-height:1.2;text-shadow:0 0 18px rgba(25,230,255,.25)
}
.topbar .sub{font-size:13px;color:var(--ink-2);margin-top:5px;font-weight:500;letter-spacing:.3px}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.countdown{
  text-align:center;min-width:78px;padding:9px 13px;border-radius:16px;
  background:rgba(25,230,255,.08);
  border:1px solid rgba(25,230,255,.35);
  box-shadow:0 0 18px rgba(25,230,255,.18) inset, 0 0 14px rgba(25,230,255,.16)
}
.countdown b{
  display:block;font-size:24px;line-height:1.05;font-weight:800;color:var(--cyan);
  font-variant-numeric:tabular-nums;text-shadow:0 0 12px rgba(25,230,255,.55)
}
.countdown span{font-size:10.5px;color:var(--ink-2);letter-spacing:.6px}
.switch-btn{
  flex:0 0 auto;padding:8px 13px;border-radius:14px;
  font-size:13px;font-weight:600;color:var(--cyan);
  background:var(--glass-bg);border:1.5px solid rgba(25,230,255,.4);cursor:pointer;white-space:nowrap;
  box-shadow:0 0 0 1px rgba(120,180,255,.15) inset, 0 0 12px rgba(25,230,255,.18);
  transition:.16s
}
.switch-btn:hover{background:rgba(25,230,255,.14);box-shadow:0 0 16px rgba(25,230,255,.3)}
.switch-btn:active{transform:scale(.96)}

/* ---------- 卡片（深色毛玻璃） ---------- */
.wrap{padding:0}
.card{
  border-radius:var(--radius);padding:16px;margin-top:14px;
  background:var(--glass-bg);
  backdrop-filter:blur(24px) saturate(180%);
  -webkit-backdrop-filter:blur(24px) saturate(180%);
  border:1px solid var(--glass-border);
  box-shadow:var(--glass-shadow-sm);
  animation:floatIn .45s ease both;
  position:relative;overflow:hidden
}
/* 卡片顶部霓虹细线，强化 HUD 感 */
.card::before{
  content:'';position:absolute;top:0;left:14px;right:14px;height:1px;
  background:linear-gradient(90deg,transparent,var(--cyan),transparent);opacity:.5
}
.card.tight{padding:13px}
.card-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:13px}
.card-title h2{
  margin:0;font-size:16px;font-weight:700;letter-spacing:.4px;color:var(--ink);
  display:flex;align-items:center;gap:9px
}
.card-title h2::before{
  content:'';width:4px;height:18px;border-radius:3px;
  background:var(--grad-main);
  box-shadow:0 0 10px rgba(25,230,255,.7)
}
.card-title .more{font-size:11.5px;color:var(--ink-3);letter-spacing:.5px}

/* ---------- 今日任务 ---------- */
.task-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:12px}
.task-item{
  background:var(--glass-bg);border:1px solid var(--glass-border);
  border-radius:var(--radius-md);padding:14px 8px;text-align:center;position:relative;overflow:hidden;
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:0 0 0 1px rgba(120,180,255,.1) inset
}
.task-item::after{
  content:'';position:absolute;inset:0;
  background:radial-gradient(80% 60% at 50% 0%, rgba(25,230,255,.16), transparent 70%);
  pointer-events:none
}
.task-item .n{font-size:22px;font-weight:800;line-height:1.15;font-variant-numeric:tabular-nums;color:var(--cyan);position:relative;text-shadow:0 0 12px rgba(25,230,255,.45)}
.task-item .l{font-size:11.5px;color:var(--ink-2);margin-top:3px;letter-spacing:.5px;position:relative}
.boost-note{
  font-size:12.5px;color:var(--cyan);
  background:linear-gradient(135deg,rgba(25,230,255,.12),rgba(155,107,255,.12));
  border:1px dashed rgba(25,230,255,.5);
  border-radius:14px;padding:9px 12px;margin-bottom:14px;
  text-align:center;letter-spacing:.5px;
  box-shadow:0 0 18px rgba(25,230,255,.15)
}

/* ---------- 按钮（统一科幻样式） ---------- */
.btn{
  display:block;width:100%;text-align:center;padding:15px;border-radius:var(--radius-sm);
  font-size:17px;font-weight:600;letter-spacing:1px;transition:.18s;position:relative;overflow:hidden;
  color:#eaf6ff
}
.btn:active{transform:scale(.978)}
.btn-primary{
  background:var(--grad-main);
  box-shadow:0 10px 28px rgba(25,230,255,.32), inset 0 1px 0 rgba(255,255,255,.35);
}
.btn-primary::after{
  content:'';position:absolute;top:0;left:-60%;width:55%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.45),transparent);
  transform:skewX(-18deg);animation:sheen 3.6s ease-in-out infinite;
  pointer-events:none
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(25,230,255,.45), inset 0 1px 0 rgba(255,255,255,.4)}
.btn-ghost{
  background:rgba(25,230,255,.06);color:var(--cyan);
  border:1.5px solid rgba(25,230,255,.5);
  box-shadow:0 0 16px rgba(25,230,255,.18) inset, 0 0 12px rgba(25,230,255,.15)
}
.btn-ghost:hover{background:rgba(25,230,255,.14);box-shadow:0 0 22px rgba(25,230,255,.3) inset}
.btn-line{
  background:var(--glass-bg);color:var(--ink-2);border:1.5px solid var(--glass-border);
  box-shadow:0 0 0 1px rgba(120,180,255,.1) inset
}
.btn-line:hover{color:var(--ink);border-color:rgba(120,180,255,.4)}
.btn-sm{padding:11px;font-size:14px;border-radius:12px;letter-spacing:.6px}
.btn-row{display:flex;gap:10px;margin-top:12px}
.btn-row .btn{margin:0}

/* ---------- 统计 ---------- */
.stat-row{display:flex;gap:9px}
.stat{
  flex:1;background:var(--glass-bg);border:1px solid var(--glass-border);
  border-radius:var(--radius-md);padding:11px 6px;text-align:center;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:0 0 0 1px rgba(120,180,255,.08) inset
}
.stat b{display:block;font-size:19px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.25;color:var(--ink);text-shadow:0 0 10px rgba(25,230,255,.2)}
.stat span{font-size:10.5px;color:var(--ink-3);letter-spacing:.5px}

/* ---------- 做题页 ---------- */
.q-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 16px;margin:14px 0 0;border-radius:20px;
  background:var(--glass-bg-strong);border:1px solid var(--glass-border);
  position:sticky;top:calc(var(--bar-h) + 8px);z-index:20;
  backdrop-filter:blur(26px) saturate(180%);-webkit-backdrop-filter:blur(26px) saturate(180%);
  box-shadow:var(--glass-shadow-sm)
}
.q-head .back{font-size:22px;color:var(--ink-2);width:30px;line-height:1;transition:.16s}
.q-head .back:active{color:var(--cyan);transform:scale(.9)}
.progress-wrap{flex:1;margin:0 12px}
.progress-txt{font-size:11.5px;color:var(--ink-3);text-align:center;margin-bottom:6px;letter-spacing:1px}
.progress-bar{height:7px;background:rgba(120,180,255,.12);border-radius:4px;overflow:hidden;box-shadow:inset 0 1px 2px rgba(0,0,0,.4)}
.progress-fill{
  height:100%;border-radius:4px;transition:width .35s;
  background:var(--grad-neon);background-size:200% 100%;
  animation:flow 3s linear infinite;
  box-shadow:0 0 12px rgba(25,230,255,.7)
}
/* 计时器：HUD 读数样式 */
.timer{
  font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  font-size:14px;color:var(--cyan);font-variant-numeric:tabular-nums;
  min-width:62px;text-align:right;letter-spacing:1px;
  padding:4px 9px;border-radius:9px;
  background:rgba(25,230,255,.08);border:1px solid rgba(25,230,255,.32);
  box-shadow:0 0 12px rgba(25,230,255,.18) inset;
  text-shadow:0 0 8px rgba(25,230,255,.5)
}

.tag-row{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:13px;justify-content:center}
.tag{
  font-size:11px;padding:3.5px 10px;border-radius:20px;letter-spacing:.5px;
  background:var(--glass-bg);color:var(--ink-2);border:1px solid var(--glass-border)
}
.tag.sub{color:#04121a;font-weight:700;border:none;box-shadow:0 2px 10px rgba(25,230,255,.5);background:var(--cyan)}
.tag.review{background:rgba(255,174,60,.16);color:#ffcb7a;border-color:rgba(255,174,60,.4);box-shadow:0 0 10px rgba(255,174,60,.25)}
.tag.lv{background:rgba(255,225,77,.16);color:#ffe98a;border-color:rgba(255,225,77,.4)}
.tag.type{background:rgba(43,123,255,.16);color:#9ec2ff;border-color:rgba(43,123,255,.4)}
.tag.boost{background:var(--grad-main);color:#fff;border:none;font-weight:700;box-shadow:0 2px 12px rgba(155,107,255,.5)}

.stem{
  font-size:17px;line-height:1.8;white-space:pre-wrap;margin-bottom:16px;
  font-weight:600;letter-spacing:.2px;color:var(--ink)
}
.passage{
  font-size:14px;line-height:1.85;color:var(--ink-2);
  background:var(--glass-bg);border-left:3px solid var(--cyan);
  border-radius:10px;padding:12px 14px;margin-bottom:14px;white-space:pre-wrap;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 0 0 1px rgba(120,180,255,.08) inset
}

/* 选择题（玻璃选择单元） */
.opt{
  display:flex;align-items:flex-start;gap:11px;width:100%;text-align:left;
  padding:14px 15px;border-radius:var(--radius-sm);margin-bottom:9px;transition:.16s;
  font-size:15.5px;line-height:1.6;font-weight:500;
  background:var(--glass-bg-strong);border:1.5px solid var(--glass-border);color:var(--ink);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:0 0 0 1px rgba(120,180,255,.06) inset
}
.opt:hover{border-color:rgba(25,230,255,.45);box-shadow:0 0 16px rgba(25,230,255,.18)}
.opt:active{background:rgba(25,230,255,.12)}
.opt .k{
  flex:none;width:27px;height:27px;border-radius:8px;
  background:linear-gradient(135deg,rgba(25,230,255,.22),rgba(155,107,255,.22));color:var(--cyan);
  font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center;margin-top:1px;
  box-shadow:0 0 10px rgba(25,230,255,.3)
}
.opt.right{border-color:var(--green);background:var(--green-soft);box-shadow:0 0 20px rgba(47,245,168,.3)}
.opt.right .k{background:var(--green);color:#04121a}
.opt.wrong{border-color:var(--red);background:var(--red-soft);box-shadow:0 0 20px rgba(255,90,110,.28)}
.opt.wrong .k{background:var(--red);color:#fff}
.opt.disabled{pointer-events:none}

/* 判断题 */
.judge-row{display:flex;gap:11px;margin-bottom:4px}
.judge{
  flex:1;padding:20px 10px;border-radius:var(--radius-md);text-align:center;transition:.16s;
  background:var(--glass-bg-strong);border:1.5px solid var(--glass-border);font-weight:600;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:0 0 0 1px rgba(120,180,255,.06) inset
}
.judge:hover{border-color:rgba(25,230,255,.45);box-shadow:0 0 16px rgba(25,230,255,.18)}
.judge:active{background:rgba(25,230,255,.12)}
.judge .sym{font-size:30px;line-height:1.1;display:block;margin-bottom:3px}
.judge .lb{font-size:13.5px;color:var(--ink-2);letter-spacing:1px}
.judge.t .sym{color:var(--green);text-shadow:0 0 14px rgba(47,245,168,.6)}
.judge.f .sym{color:var(--red);text-shadow:0 0 14px rgba(255,90,110,.6)}
.judge.right{border-color:var(--green);background:var(--green-soft);box-shadow:0 0 24px rgba(47,245,168,.32)}
.judge.wrong{border-color:var(--red);background:var(--red-soft);box-shadow:0 0 24px rgba(255,90,110,.3)}
.judge.disabled{pointer-events:none}

/* 解题提示 */
.hint-box{margin:2px 0 15px}
.hint-toggle{
  display:flex;align-items:center;gap:7px;width:100%;padding:11px 13px;border-radius:14px;
  background:rgba(255,174,60,.1);
  border:1.5px dashed rgba(255,174,60,.55);
  color:#ffcb7a;font-size:13.5px;font-weight:700;letter-spacing:.4px;transition:.16s
}
.hint-toggle:hover{background:rgba(255,174,60,.16)}
.hint-toggle .ar{margin-left:auto;font-size:11px;transition:transform .22s}
.hint-toggle.open .ar{transform:rotate(180deg)}
.hint-body{
  margin-top:8px;padding:12px 14px;border-radius:13px;
  background:var(--glass-bg-strong);border:1px solid rgba(255,174,60,.4);
  font-size:14px;line-height:1.78;color:var(--ink);
  animation:fadeDown .22s ease;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)
}

/* 提升题常显框 */
.boost-box{
  margin:2px 0 15px;border-radius:var(--radius-md);padding:13px 14px;
  background:linear-gradient(160deg,rgba(25,230,255,.1),rgba(155,107,255,.1));
  border:1.5px solid rgba(25,230,255,.35);
  box-shadow:0 6px 20px rgba(25,230,255,.18);
  animation:fadeDown .22s ease;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)
}
.boost-hd{font-size:13.5px;font-weight:800;color:var(--cyan);margin-bottom:9px;letter-spacing:.4px}
.boost-row{display:flex;gap:8px;font-size:13.5px;line-height:1.72;margin-top:7px}
.boost-row .bl{flex:none;font-weight:700;color:var(--ink-2);min-width:92px}
.boost-row .bv{color:var(--ink);flex:1}

/* 判定与解析 */
.verdict{display:flex;align-items:center;gap:9px;font-weight:700;font-size:15.5px;margin:16px 0 11px}
.verdict.ok{color:var(--green)}
.verdict.no{color:var(--red)}
.verdict .ico{
  width:24px;height:24px;border-radius:50%;font-size:14px;
  display:flex;align-items:center;justify-content:center
}
.verdict.ok .ico{background:var(--green);color:#04121a;box-shadow:0 0 16px rgba(47,245,168,.7)}
.verdict.no .ico{background:var(--red);color:#fff;box-shadow:0 0 16px rgba(255,90,110,.7)}

.analysis{
  border-radius:var(--radius-md);padding:14px;margin-bottom:14px;
  background:var(--glass-bg);border:1px solid var(--glass-border);
  animation:fadeDown .25s ease;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:0 0 0 1px rgba(120,180,255,.08) inset
}
.analysis .ans{
  font-size:15px;font-weight:700;color:var(--green);
  padding-bottom:11px;margin-bottom:11px;border-bottom:1.5px dashed var(--line)
}
.analysis h4{
  margin:0 0 7px;font-size:12.5px;color:var(--ink-2);font-weight:700;
  display:flex;align-items:center;gap:5px;letter-spacing:.6px
}
.analysis .body{font-size:14.5px;line-height:1.82;white-space:pre-wrap;color:var(--ink)}
.analysis .tip{
  margin-top:12px;padding:10px 12px;border-radius:12px;
  background:rgba(255,174,60,.1);border:1px solid rgba(255,174,60,.4);
  font-size:13.5px;line-height:1.74;color:#ffd99a
}
.analysis .tip b{color:#ffcb7a}

/* 结果页 */
.score-hero{text-align:center;padding:24px 16px 18px}
.score-ring{
  width:142px;height:142px;margin:0 auto 15px;border-radius:50%;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  position:relative;
  background:var(--grad-main);
  border:3px solid rgba(180,220,255,.65);
  box-shadow:0 12px 32px rgba(25,230,255,.4), 0 0 40px rgba(155,107,255,.45)
}
.score-ring b{display:block;font-size:38px;font-weight:800;line-height:1;font-variant-numeric:tabular-nums;color:#fff;text-shadow:0 1px 6px rgba(0,0,0,.3)}
.score-ring span{font-size:12px;color:rgba(255,255,255,.95);margin-top:4px;display:block;text-shadow:0 1px 3px rgba(0,0,0,.3)}
.score-word{font-size:17px;font-weight:700;margin-bottom:5px;letter-spacing:1px;color:var(--ink)}
.score-desc{font-size:13.5px;color:var(--ink-2);line-height:1.7;padding:0 10px}

/* 列表 */
.list-item{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid var(--line-soft)}
.list-item:last-child{border-bottom:none}
.li-main{flex:1;min-width:0}
.li-title{font-size:14px;font-weight:600;color:var(--ink)}
.li-sub{font-size:12px;color:var(--ink-3);margin-top:3px}
.li-val{color:var(--red);font-size:12px;font-weight:700;white-space:nowrap}

/* 掌握度条 */
.bar-item{margin-bottom:13px}
.bar-item:last-child{margin-bottom:0}
.bar-head{display:flex;justify-content:space-between;font-size:13.5px;margin-bottom:6px}
.bar-head .t{color:var(--ink)}
.bar-head .v{color:var(--ink-3);font-size:12px;font-variant-numeric:tabular-nums}
.bar{height:8px;background:rgba(120,180,255,.12);border-radius:5px;overflow:hidden;box-shadow:inset 0 1px 2px rgba(0,0,0,.4)}
.bar i{display:block;height:100%;border-radius:5px;transition:width .55s;background:var(--grad-neon);background-size:200% 100%;animation:flow 3s linear infinite;box-shadow:0 0 10px rgba(25,230,255,.6)}

/* 趋势图（旧竖条，仍保留） */
.trend{display:flex;align-items:flex-end;gap:8px;height:112px;padding-top:10px}
.trend .col{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;min-width:0}
.trend .bar-v{
  width:100%;max-width:30px;border-radius:8px 8px 0 0;min-height:5px;position:relative;
  background:linear-gradient(180deg,#19e6ff,#2b7bff);
  box-shadow:0 0 14px rgba(25,230,255,.5)
}
.trend .bar-v em{
  position:absolute;top:-18px;left:50%;transform:translateX(-50%);
  font-size:10.5px;font-style:normal;color:var(--ink-2);white-space:nowrap;font-variant-numeric:tabular-nums
}
.trend .lb{font-size:10px;color:var(--ink-3);white-space:nowrap}

/* 短板 */
.weak{
  display:flex;align-items:center;gap:11px;padding:11px 12px;border-radius:var(--radius-sm);margin-bottom:8px;
  background:var(--red-soft);border:1px solid rgba(255,90,110,.3);
  box-shadow:0 0 16px rgba(255,90,110,.16)
}
.weak:last-child{margin-bottom:0}
.weak .rank{
  flex:none;width:22px;height:22px;border-radius:8px;background:var(--red);color:#fff;
  font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 12px rgba(255,90,110,.6)
}
.weak .m{flex:1;min-width:0}
.weak .m b{font-size:14.5px;font-weight:700;display:block;color:var(--ink)}
.weak .m span{font-size:11.5px;color:var(--ink-2)}
.weak .r{font-size:15px;font-weight:800;color:var(--red);font-variant-numeric:tabular-nums}

.advice{
  border-radius:var(--radius-sm);padding:13px;font-size:14px;line-height:1.85;color:var(--ink);
  background:var(--glass-bg);border:1px solid var(--glass-border);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:0 0 0 1px rgba(120,180,255,.08) inset
}
.advice b{color:var(--cyan)}

/* 初中先修预览 */
.boost-list{display:flex;flex-wrap:wrap;gap:8px}
.boost-chip{
  display:flex;flex-direction:column;gap:2px;padding:8px 12px;border-radius:var(--radius-sm);
  background:var(--glass-bg);border:1px solid var(--glass-border);
  box-shadow:0 0 0 1px rgba(120,180,255,.08) inset
}
.boost-chip .bc-t{font-size:13.5px;font-weight:700;color:var(--ink)}
.boost-chip .bc-v{font-size:11px;color:var(--cyan)}

/* 空状态 */
.empty{text-align:center;padding:44px 20px;color:var(--ink-3)}
.empty .ico{font-size:40px;margin-bottom:12px;opacity:.9;filter:drop-shadow(0 0 14px rgba(25,230,255,.4))}
.empty p{margin:0;font-size:14px;line-height:1.8}

/* 底部导航（深色毛玻璃 tab bar） */
.tabbar{
  position:fixed;bottom:max(12px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);
  width:calc(100% - 28px);max-width:496px;
  display:flex;padding:8px 0;border-radius:24px;z-index:50;
  background:rgba(10,16,34,.66);
  backdrop-filter:blur(26px) saturate(180%);
  -webkit-backdrop-filter:blur(26px) saturate(180%);
  border:1px solid var(--glass-border);
  box-shadow:0 16px 38px rgba(2,6,20,.55), inset 0 1px 0 rgba(180,220,255,.18)
}
.tabbar button{flex:1;text-align:center;color:var(--ink-3);font-size:10.5px;padding:3px 0;letter-spacing:.6px;font-weight:500;transition:.18s}
.tabbar button .ico{display:block;margin:0 auto 3px;transition:.18s}
.tabbar button .ico svg{width:23px;height:23px;display:block;margin:0 auto;stroke:currentColor;filter:drop-shadow(0 0 5px rgba(25,230,255,.45))}
.tabbar button.on{color:var(--cyan);font-weight:700}
.tabbar button.on .ico{transform:translateY(-1px) scale(1.06)}
.tabbar button.on .ico svg{filter:drop-shadow(0 0 9px rgba(25,230,255,.8))}
.tabbar button:active{transform:scale(.96)}

/* 弹窗（深色毛玻璃 alert） */
.mask{
  position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:24px;
  background:rgba(4,8,18,.55);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)
}
.dialog{
  border-radius:22px;padding:22px 22px 24px;width:100%;max-width:320px;text-align:center;position:relative;overflow:hidden;
  background:rgba(16,24,46,.82);
  backdrop-filter:blur(30px) saturate(180%);
  -webkit-backdrop-filter:blur(30px) saturate(180%);
  border:1px solid var(--glass-border);
  box-shadow:0 26px 64px rgba(2,6,20,.6);
}
.dialog::after{
  content:'';position:absolute;top:0;left:18px;right:18px;height:2px;
  background:var(--grad-neon);opacity:.9;box-shadow:0 0 12px rgba(25,230,255,.6)
}
.dialog h3{margin:14px 0 7px;font-size:18px;letter-spacing:.6px;color:var(--ink)}
.dialog p{margin:0 0 16px;font-size:13px;color:var(--ink-2);line-height:1.72}
.dialog input{
  width:100%;padding:13px;border-radius:14px;text-align:center;outline:none;
  font-size:21px;letter-spacing:9px;margin-bottom:14px;
  background:rgba(120,180,255,.08);border:1.5px solid var(--glass-border);color:var(--ink)
}
.dialog input:focus{border-color:var(--cyan);box-shadow:0 0 18px rgba(25,230,255,.4)}
.dialog input::placeholder{color:var(--ink-3);letter-spacing:6px}

.footer-note{
  text-align:center;font-size:11px;color:var(--ink-3);
  padding:18px 20px 8px;line-height:1.85;letter-spacing:.5px
}
.badge-beta{
  display:inline-block;padding:2px 8px;border-radius:6px;font-size:10px;letter-spacing:1px;
  background:rgba(25,230,255,.16);color:var(--cyan);border:1px solid rgba(25,230,255,.4);
  vertical-align:middle;margin-left:6px;font-weight:700
}
@keyframes fadeDown{from{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:none}}
@keyframes floatIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@keyframes pulse{0%,100%{opacity:1;box-shadow:0 0 8px var(--green)}50%{opacity:.35;box-shadow:0 0 3px var(--green)}}
@keyframes flow{0%{background-position:0 0}100%{background-position:200% 0}}
@keyframes sheen{0%{left:-60%}55%{left:120%}100%{left:120%}}

/* ---------- 今日考点复习 ---------- */
.glass{background:var(--glass-bg);backdrop-filter:blur(24px) saturate(180%);-webkit-backdrop-filter:blur(24px) saturate(180%);border:1px solid var(--glass-border)}
.review-card{border-color:var(--glass-border)}
.review-tip-line{font-size:12.5px;color:var(--ink-2);margin:-4px 0 12px;letter-spacing:.4px}
.review-group{margin-bottom:13px}
.review-group:last-child{margin-bottom:0}
.rg-head{font-size:13.5px;font-weight:800;margin-bottom:8px;letter-spacing:.5px;color:var(--ink)}
.rg-tags{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:9px}
.rg-tag{
  font-size:12px;font-weight:700;padding:4px 11px;border-radius:20px;
  color:var(--cyan);background:var(--glass-bg);border:1px solid var(--glass-border);
  box-shadow:0 0 0 1px rgba(120,180,255,.08) inset
}
.rg-tips{display:flex;flex-direction:column;gap:5px}
.rg-tip{font-size:12px;line-height:1.62;color:var(--ink-2);background:var(--glass-bg);border-radius:10px;padding:6px 10px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.rg-tip b{font-weight:700;color:var(--ink)}

/* 云同步设置 */
.setup-card{max-width:420px;margin-top:24px}
.setup-tip{font-size:13px;line-height:1.78;color:var(--ink-2);margin:0 0 16px}
.pw-input{
  width:100%;padding:13px 14px;border-radius:14px;margin-bottom:11px;outline:none;
  font-size:17px;letter-spacing:6px;text-align:center;
  background:rgba(120,180,255,.08);border:1.5px solid var(--glass-border);color:var(--ink)
}
.pw-input:focus{border-color:var(--cyan);box-shadow:0 0 18px rgba(25,230,255,.4)}
.pw-input::placeholder{color:var(--ink-3);letter-spacing:3px}
.setup-err{font-size:12.5px;color:var(--red);min-height:18px;margin-bottom:6px;text-align:center;letter-spacing:.3px}

/* 忘记口令警告框 */
.forgot-box{
  background:rgba(255,174,60,.1);border:1.5px solid rgba(255,174,60,.45);border-radius:14px;padding:12px 13px;margin-bottom:16px;
  box-shadow:0 0 18px rgba(255,174,60,.16)
}
.forgot-box .fb-hd{font-weight:800;color:#ffcb7a;font-size:13.5px;margin-bottom:6px;letter-spacing:.4px}
.forgot-box .fb-bd{font-size:12.5px;line-height:1.72;color:#e7c79a}
.forgot-box .fb-bd b{color:#ffcb7a}

/* 为什么需要口令（折叠说明） */
.why-pass{margin-top:14px;border-top:1px dashed var(--line);padding-top:12px}
.why-pass summary{font-size:13px;color:var(--cyan);cursor:pointer;font-weight:600;user-select:none}
.why-pass summary::-webkit-details-marker{color:var(--cyan)}
.why-pass .why-bd{font-size:12.5px;line-height:1.75;color:var(--ink-2);margin-top:9px}
.why-pass .why-bd b{color:var(--ink)}

/* 首页云同步状态条 */
.cloud-status{
  display:flex;align-items:center;justify-content:center;gap:7px;
  margin-top:12px;padding:9px 14px;border-radius:16px;
  background:var(--glass-bg);border:1px solid var(--glass-border);
  font-size:12.5px;letter-spacing:.6px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 0 0 1px rgba(120,180,255,.08) inset
}
.cloud-status .cs-ico{font-size:15px;color:var(--cyan)}
.cloud-status .cs-txt{font-weight:700;color:var(--ink)}

/* ================== 打卡日历 & 图表 ================== */
.checkin-card .streak-hero{text-align:center;margin:4px 0 14px}
.checkin-card .streak-hero b{font-size:36px;color:var(--orange);line-height:1;text-shadow:0 0 18px rgba(255,174,60,.55)}
.checkin-card .streak-hero span{display:block;color:var(--ink-3);font-size:12px;margin-top:4px}
.heatmap{display:grid;grid-template-columns:repeat(7,1fr);gap:5px}
.hm-cell{aspect-ratio:1/1;border-radius:5px;background:rgba(120,180,255,.1);box-shadow:inset 0 1px 2px rgba(0,0,0,.4)}
.hm-cell.on{background:var(--grad-neon);background-size:200% 200%;animation:flow 3s linear infinite;box-shadow:0 0 10px rgba(25,230,255,.6)}
.hm-cell.today{box-shadow:0 0 0 2px var(--cyan);outline:2px solid rgba(180,220,255,.6)}
.heat-legend{display:flex;align-items:center;gap:6px;margin-top:10px;font-size:11px;color:var(--ink-3)}
.heat-legend .hm-cell{width:13px;height:13px;aspect-ratio:auto}

#trendChart,#radarChart{width:100%;height:auto;display:block;margin-top:6px;filter:drop-shadow(0 4px 10px rgba(25,230,255,.3))}

@media (prefers-reduced-motion: reduce){
  body::before,.btn-primary,.score-ring,.progress-fill,.bar i,.hm-cell.on,.hud-status .led{
    animation:none !important
  }
}