/* 小学作文批改系统 · 清新蓝色教育风 */
:root{
  --brand:#2f7fe0;
  --brand-2:#5aa7f5;
  --brand-deep:#1b5fae;
  --brand-soft:#eaf3ff;
  --brand-softer:#f5f9ff;
  --accent:#ffb340;
  --ink:#1c2b3a;
  --ink-2:#5c6f80;
  --ink-3:#93a3b1;
  --line:#e4ecf5;
  --bg:#f2f7fd;
  --card:#ffffff;
  --ok:#20b26c;
  --ok-bg:#e6f9f0;
  --warn:#e8992a;
  --warn-bg:#fef4e3;
  --bad:#e5573f;
  --bad-bg:#fdedea;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:11px;
  --sh-1:0 2px 8px rgba(47,127,224,.06);
  --sh-2:0 6px 20px rgba(47,127,224,.10);
  --sh-3:0 12px 32px rgba(27,95,174,.14);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:
    radial-gradient(1200px 400px at 50% -120px, #dcecff 0%, rgba(220,236,255,0) 70%),
    var(--bg);
  color:var(--ink);font-size:15px;line-height:1.7;
  -webkit-font-smoothing:antialiased;min-height:100vh;
}
a{color:var(--brand);text-decoration:none}

/* ---------- 顶栏 ---------- */
.topbar{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:11px 18px;
  background:linear-gradient(120deg,var(--brand-deep),var(--brand) 55%,var(--brand-2));
  box-shadow:0 3px 14px rgba(27,95,174,.22);
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:#fff}
.logo{
  width:34px;height:34px;border-radius:11px;
  background:rgba(255,255,255,.22);
  border:1.5px solid rgba(255,255,255,.45);
  color:#fff;display:grid;place-items:center;font-size:17px;font-weight:800;
  backdrop-filter:blur(4px);
}
.brand-text{font-size:15.5px;letter-spacing:.3px}
.topnav{display:flex;gap:5px;flex-wrap:wrap;align-items:center}
.topnav a{
  font-size:13.5px;padding:7px 13px;border-radius:10px;
  color:rgba(255,255,255,.86);font-weight:500;transition:.16s;
}
.topnav a:hover{background:rgba(255,255,255,.16);color:#fff}
.topnav a.active{background:#fff;color:var(--brand);font-weight:700;box-shadow:0 2px 8px rgba(0,0,0,.12)}

/* ---------- 布局 ---------- */
.container{max-width:940px;margin:0 auto;padding:20px 16px 48px}
.footer{text-align:center;color:var(--ink-3);font-size:12.5px;padding:22px 16px 30px}

/* ---------- 卡片 ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;margin-bottom:16px;box-shadow:var(--sh-1);
  transition:box-shadow .2s;
}
.card:hover{box-shadow:var(--sh-2)}
.card h2{margin:0 0 14px;font-size:17.5px;color:var(--ink);letter-spacing:.2px}
.card h3{margin:0 0 10px;font-size:15.5px;color:var(--brand-deep)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:12px 22px;border-radius:13px;border:none;font-size:15px;font-weight:600;
  background:linear-gradient(120deg,var(--brand),var(--brand-2));color:#fff;
  cursor:pointer;transition:.18s;box-shadow:0 4px 14px rgba(47,127,224,.28);
}
.btn:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(47,127,224,.36)}
.btn:active{transform:translateY(0)}
.btn.block{width:100%}
.btn.ghost{background:var(--brand-soft);color:var(--brand);box-shadow:none}
.btn.ghost:hover{background:#dcecff;box-shadow:none}
.btn.gray{background:#eef3f9;color:var(--ink-2);box-shadow:none}
.btn.gray:hover{background:#e3ebf4;box-shadow:none}
.btn.sm{padding:8px 14px;font-size:13.5px;border-radius:10px}

/* ---------- 表单 ---------- */
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;color:var(--ink-2);margin-bottom:7px;font-weight:600}
input,select,textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:12px;
  font-size:15px;font-family:inherit;background:var(--brand-softer);color:var(--ink);
  transition:.15s;
}
input:focus,select:focus,textarea:focus{
  outline:none;border-color:var(--brand);background:#fff;
  box-shadow:0 0 0 4px rgba(47,127,224,.10);
}
textarea{min-height:96px;resize:vertical}

/* ---------- 首页 ---------- */
.hero{text-align:center;padding:34px 12px 10px}
.hero .eyebrow{
  display:inline-block;font-size:12.5px;font-weight:600;color:var(--brand);
  background:var(--brand-soft);padding:5px 14px;border-radius:20px;margin-bottom:14px;
}
.hero h1{
  font-size:30px;margin:0 0 12px;letter-spacing:.5px;line-height:1.3;
  background:linear-gradient(120deg,var(--brand-deep),var(--brand-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p{color:var(--ink-2);margin:0 auto 26px;max-width:520px;font-size:15px}
.entry-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:18px}
@media(max-width:560px){.entry-grid{grid-template-columns:1fr}}
.entry{
  position:relative;overflow:hidden;
  background:#fff;border:1.5px solid var(--line);border-radius:var(--r-lg);
  padding:26px 20px;text-align:center;box-shadow:var(--sh-1);transition:.2s;
}
.entry::before{
  content:"";position:absolute;inset:0;opacity:0;transition:.2s;
  background:linear-gradient(160deg,var(--brand-soft),transparent 60%);
}
.entry:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#c9e0ff}
.entry:hover::before{opacity:1}
.entry>*{position:relative}
.entry .ico{
  width:62px;height:62px;border-radius:19px;margin:0 auto 12px;
  display:grid;place-items:center;font-size:31px;
  background:linear-gradient(140deg,var(--brand-soft),#dbe9fd);
  box-shadow:inset 0 0 0 1.5px #d3e5fb;
}
.entry h3{margin:0 0 5px;font-size:17px;color:var(--ink)}
.entry p{color:var(--ink-2);font-size:13.5px;margin:0}

/* ---------- 统计 ---------- */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:16px}
.stat{
  background:linear-gradient(160deg,#fff,var(--brand-softer));
  border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 10px;text-align:center;box-shadow:var(--sh-1);
}
.stat .num{font-size:24px;font-weight:800;color:var(--brand);line-height:1.2;letter-spacing:-.5px}
.stat .lbl{font-size:12px;color:var(--ink-3);margin-top:3px}

/* ---------- 列表 ---------- */
.list-item{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:15px 12px;border-radius:13px;margin-bottom:6px;
  border:1px solid transparent;transition:.16s;
}
.list-item:hover{background:var(--brand-softer);border-color:var(--line)}
.list-item .t{font-weight:600;font-size:14.5px;color:var(--ink)}
.list-item .s{font-size:12.5px;color:var(--ink-3);margin-top:3px}
.list-item .arrow{color:var(--ink-3);font-size:18px}

/* ---------- 徽标 ---------- */
.badge{display:inline-block;padding:3.5px 11px;border-radius:20px;font-size:12px;font-weight:600;line-height:1.7}
.badge.ok{background:var(--ok-bg);color:var(--ok)}
.badge.warn{background:var(--warn-bg);color:var(--warn)}
.badge.bad{background:var(--bad-bg);color:var(--bad)}
.badge.blue{background:var(--brand-soft);color:var(--brand)}
.badge.gray{background:#eef3f9;color:var(--ink-2)}

/* ---------- 分数环 ---------- */
.score-ring{
  width:138px;height:138px;border-radius:50%;display:grid;place-items:center;margin:6px auto 12px;
  background:conic-gradient(var(--brand) calc(var(--p)*1%),#e8f0fa 0);
  position:relative;filter:drop-shadow(0 6px 16px rgba(47,127,224,.20));
}
.score-ring::after{content:"";position:absolute;inset:11px;border-radius:50%;background:#fff}
.score-ring .v{position:relative;z-index:1;text-align:center}
.score-ring .v b{font-size:36px;color:var(--brand);display:block;line-height:1.05;letter-spacing:-1px}
.score-ring .v span{font-size:11.5px;color:var(--ink-3)}

/* ---------- 表格 ---------- */
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:11px 12px;border-bottom:1px solid var(--line);text-align:left}
th{background:var(--brand-softer);color:var(--brand-deep);font-size:13px;font-weight:700;
   white-space:nowrap}
th:first-child{border-top-left-radius:11px}
th:last-child{border-top-right-radius:11px}
tr:last-child td{border-bottom:none}
tbody tr:hover{background:var(--brand-softer)}
.scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:11px}

/* ---------- 旁批 ---------- */
.marginal{
  border-left:4px solid var(--brand);background:linear-gradient(90deg,var(--brand-soft),#fbfdff);
  padding:12px 15px;border-radius:0 13px 13px 0;margin-bottom:11px;
}
.marginal .q{font-size:13px;color:var(--brand-deep);font-style:italic;opacity:.85}
.marginal .n{font-size:14px;margin-top:5px;color:var(--ink)}

/* ---------- 建议 ---------- */
.sug{background:linear-gradient(160deg,#fffcf4,var(--warn-bg));border:1px solid #f6e2bd;
  border-radius:13px;padding:13px 15px;margin-bottom:10px}
.sug .p{font-size:14px;font-weight:700;color:#b5771a}
.sug .a{font-size:14px;margin-top:5px;color:var(--ink)}

/* ---------- 范文 ---------- */
.model{
  white-space:pre-wrap;background:linear-gradient(160deg,#f4fcf8,#eaf8f1);
  border:1px solid #cdeada;border-radius:13px;padding:16px;
  font-size:14.5px;line-height:1.9;color:#1d3b2e;
}

/* ---------- 提示条 ---------- */
.tip{background:var(--warn-bg);border:1px solid #f5e0bb;border-radius:13px;
  padding:13px 15px;font-size:13.5px;color:#946413;margin-bottom:14px;line-height:1.7}
.tip.blue{background:var(--brand-soft);border-color:#cfe2fb;color:var(--brand-deep)}
.tip.ok{background:var(--ok-bg);border-color:#c2edd6;color:#177a4c}
.tip.dark{background:#20344a;border-color:#20344a;color:#dbe8f6}

/* ---------- 上传区 ---------- */
.upload-box{
  border:2.5px dashed #b9d4f2;border-radius:var(--r-md);padding:32px 16px;text-align:center;
  background:linear-gradient(160deg,var(--brand-softer),#fff);cursor:pointer;transition:.18s;
}
.upload-box:hover{border-color:var(--brand);background:var(--brand-soft);transform:translateY(-1px)}
.upload-box .ico{font-size:42px;display:block;margin-bottom:8px}
.upload-box p{margin:4px 0 0;color:var(--ink-2);font-size:13.5px}
.upload-box b{color:var(--brand)}
.preview{max-width:100%;max-height:280px;border-radius:13px;margin-top:14px;display:none;
  box-shadow:var(--sh-2)}

/* ---------- 步骤 ---------- */
.steps{display:flex;gap:10px;margin-bottom:18px;flex-wrap:wrap}
.step{flex:1;min-width:130px;background:var(--brand-softer);border:1px solid #dbe9fb;
  border-radius:13px;padding:12px 14px;font-size:13px;color:var(--ink-2)}
.step b{display:block;color:var(--brand);font-size:12px;margin-bottom:3px;font-weight:700}

/* ---------- 对比 ---------- */
.cmp{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:640px){.cmp{grid-template-columns:1fr}}
.cmp-col{background:#fff;border:1.5px solid var(--line);border-radius:var(--r-md);padding:16px;
  box-shadow:var(--sh-1)}
.cmp-col .hd{font-weight:700;font-size:14.5px;margin-bottom:9px;color:var(--brand-deep)}
.delta{font-size:22px;font-weight:800}
.delta.up{color:var(--ok)} .delta.down{color:var(--bad)} .delta.flat{color:var(--ink-3)}

.chart-wrap{position:relative;width:100%;height:230px}
.empty{text-align:center;color:var(--ink-3);padding:32px 12px;font-size:14px}
.empty .big{font-size:40px;display:block;margin-bottom:8px;opacity:.6}
.center{text-align:center}
.mt{margin-top:16px}
.kv{display:flex;justify-content:space-between;gap:12px;padding:10px 0;
  border-bottom:1px dashed var(--line);font-size:14px}
.kv:last-child{border-bottom:none}
.kv .k{color:var(--ink-2);flex-shrink:0}
.hint{font-size:12.5px;color:var(--ink-3);margin-top:6px;line-height:1.6}

/* ---------- 分段选择（OCR 提供方切换）---------- */
.seg{display:flex;gap:8px;flex-wrap:wrap}
.seg button{
  padding:9px 16px;border-radius:11px;border:1.5px solid var(--line);background:#fff;
  color:var(--ink-2);font-size:13.5px;font-weight:600;cursor:pointer;transition:.16s;font-family:inherit;
}
.seg button.on{background:var(--brand-soft);border-color:var(--brand);color:var(--brand)}

/* ---------- 结果页小标题 ---------- */
.sec-title{display:flex;align-items:center;gap:8px;font-size:15.5px;font-weight:700;
  color:var(--brand-deep);margin:0 0 13px}
.sec-title .dot{width:7px;height:7px;border-radius:50%;background:var(--brand);flex-shrink:0}

/* 动画 */
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.card,.entry,.stat{animation:fadeUp .32s ease both}

/* 评价表：系统提示词折叠区 */
.prompt-box{margin-top:16px;border:1px solid var(--line);border-radius:13px;
  background:var(--brand-softer);padding:12px 14px}
.prompt-box>summary{cursor:pointer;font-weight:600;color:var(--brand-deep);
  font-size:14.5px;list-style:none;display:flex;align-items:center;gap:6px}
.prompt-box>summary::-webkit-details-marker{display:none}
.prompt-box>summary::before{content:"▸";transition:.2s;display:inline-block}
.prompt-box[open]>summary::before{transform:rotate(90deg)}
.prompt-box textarea{background:#fff;font-size:13px;line-height:1.7;
  font-family:inherit;width:100%}

/* ---------- 使用帮助页 ---------- */
.help-toc{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px}
.help-toc a{display:block;padding:11px 14px;border-radius:11px;background:var(--brand-softer);
  border:1px solid var(--line);color:var(--brand-deep);text-decoration:none;
  font-size:14px;font-weight:500;transition:.18s}
.help-toc a:hover{background:var(--brand-soft);border-color:#cfe2fb;transform:translateY(-1px)}

.steps{display:flex;flex-direction:column;gap:12px}
.step{display:flex;gap:14px;padding:14px 16px;border-radius:13px;
  background:var(--brand-softer);border:1px solid var(--line)}
.step .n{flex:0 0 30px;height:30px;border-radius:50%;
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:15px}
.step .s{font-size:13.5px;color:var(--ink-2);line-height:1.75}
.step .to{font-size:12.5px;color:var(--brand);text-decoration:none;white-space:nowrap}
.step .to:hover{text-decoration:underline}

.help-ul{margin:8px 0;padding-left:22px;line-height:1.95;color:var(--ink-2);font-size:14px}
.help-ul li{margin-bottom:4px}
.help-ul li b{color:var(--ink)}

details.faq{border:1px solid var(--line);border-radius:12px;padding:12px 15px;
  margin-bottom:10px;background:#fff;transition:.18s}
details.faq[open]{background:var(--brand-softer);border-color:#cfe2fb}
details.faq>summary{cursor:pointer;font-weight:600;color:var(--ink);font-size:14.5px;
  list-style:none;display:flex;align-items:center;gap:8px}
details.faq>summary::-webkit-details-marker{display:none}
details.faq>summary::before{content:"❓";font-size:13px}
details.faq[open]>summary::before{content:"💬"}
details.faq p{margin:10px 0 2px;color:var(--ink-2);font-size:14px;line-height:1.85;
  padding-left:22px}
code{background:#eef4fd;color:var(--brand-deep);padding:1.5px 6px;border-radius:6px;
  font-size:13px;font-family:ui-monospace,Menlo,Consolas,monospace}
h3{color:var(--ink)}

/* ---------- 班级/学生管理：编辑与删除 ---------- */
.cmp3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}
@media(max-width:720px){.cmp3{grid-template-columns:1fr}}

.btn.danger{background:linear-gradient(140deg,#e4574d,#c8392e);color:#fff;
  box-shadow:0 6px 16px rgba(200,57,46,.22)}
.btn.danger:hover{box-shadow:0 9px 22px rgba(200,57,46,.3);transform:translateY(-1px)}

.editbox{margin:12px 0;padding:14px 16px;border:1.5px dashed #cfe2fb;border-radius:var(--r-md);
  background:var(--brand-softer)}
.editbox input{background:#fff}

table td .btn.sm{margin:0 2px 0 0;vertical-align:middle}
table td form{display:inline-block;margin:0}

/* ---------- 补充：本系统需要的额外组件 ---------- */
.steps{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.step{flex:1;min-width:150px;display:flex;gap:10px;align-items:flex-start;
  background:var(--brand-softer);border:1px solid var(--line);border-radius:var(--r-md);padding:12px 14px}
.step .n{width:26px;height:26px;border-radius:9px;flex:0 0 auto;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand),var(--brand-2));color:#fff;font-weight:700;font-size:13px}
.step .t{font-size:13.5px;color:var(--ink);font-weight:600}
.step .d{font-size:12px;color:var(--ink-3);margin-top:2px}

.upload-box{border:2px dashed #c9dcf5;border-radius:var(--r-md);background:var(--brand-softer);
  padding:26px 16px;text-align:center;cursor:pointer;transition:.18s;display:block}
.upload-box:hover{border-color:var(--brand);background:#eef6ff}
.upload-box .ico{font-size:34px;display:block;margin-bottom:8px}
.upload-box .hint{font-size:12.5px;color:var(--ink-3);margin-top:6px}
.preview{margin-top:12px;text-align:center}
.preview img{max-width:100%;max-height:300px;border-radius:var(--r-sm);border:1px solid var(--line)}

.prompt-box{background:#fbfdff;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:12px 14px;font-size:13px;color:var(--ink-2);white-space:pre-wrap;line-height:1.75;
  font-family:ui-monospace,Menlo,Consolas,monospace;max-height:340px;overflow:auto}
details.prompt-wrap{margin-top:10px}
details.prompt-wrap summary{cursor:pointer;font-size:13.5px;color:var(--brand);font-weight:600;
  padding:8px 0;user-select:none}
details.prompt-wrap summary:hover{color:var(--brand-deep)}

.kv{display:flex;gap:10px;font-size:13.5px;padding:7px 0;border-bottom:1px dashed var(--line)}
.kv:last-child{border-bottom:none}
.kv .k{color:var(--ink-3);flex:0 0 96px}
.kv .v{color:var(--ink);font-weight:600;flex:1;word-break:break-all}

.sec-title{font-size:15.5px;font-weight:700;color:var(--brand-deep);margin:22px 0 12px;
  padding-left:10px;border-left:4px solid var(--brand);line-height:1.3}

.tip{padding:11px 14px;border-radius:var(--r-sm);font-size:13.5px;margin:12px 0;line-height:1.7}
.tip.ok{background:var(--ok-bg);color:#17794a}
.tip.warn{background:var(--warn-bg);color:#8a5a10}
.tip.info{background:var(--brand-soft);color:var(--brand-deep)}

.chart-wrap{background:var(--brand-softer);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:14px 10px 6px;overflow-x:auto}
.bars{display:flex;align-items:flex-end;gap:10px;height:170px;min-width:max-content;padding:0 6px}
.bar-col{display:flex;flex-direction:column;align-items:center;gap:6px;min-width:52px}
.bar{width:34px;border-radius:8px 8px 3px 3px;
  background:linear-gradient(180deg,var(--brand-2),var(--brand));transition:.3s;
  position:relative;min-height:4px}
.bar:hover{filter:brightness(1.08)}
.bar-col .val{font-size:11.5px;font-weight:700;color:var(--brand-deep)}
.bar-col .lbl{font-size:11px;color:var(--ink-3);text-align:center;line-height:1.35;max-width:64px}
.axis-note{font-size:11.5px;color:var(--ink-3);text-align:center;padding:8px 0 4px}

.dim-row{display:flex;align-items:center;gap:10px;padding:8px 0}
.dim-row .nm{flex:0 0 108px;font-size:13.5px;color:var(--ink-2)}
.dim-row .track{flex:1;height:9px;background:#e8f0fa;border-radius:6px;overflow:hidden}
.dim-row .fill{height:100%;border-radius:6px;background:linear-gradient(90deg,var(--brand),var(--brand-2))}
.dim-row .pc{flex:0 0 52px;text-align:right;font-size:13px;font-weight:700;color:var(--brand)}

.cmp{display:grid;grid-template-columns:1fr auto 1fr;gap:14px;align-items:start}
@media(max-width:640px){.cmp{grid-template-columns:1fr}.cmp-mid{display:none}}
.cmp-col{background:var(--brand-softer);border:1px solid var(--line);border-radius:var(--r-md);padding:14px}
.cmp-col h4{margin:0 0 8px;font-size:14px;color:var(--brand-deep)}
.cmp-mid{display:flex;flex-direction:column;justify-content:center;align-items:center;padding-top:34px}
.delta{font-size:18px;font-weight:800}
.delta.up{color:var(--ok)}
.delta.down{color:var(--bad)}
.delta.flat{color:var(--ink-3)}

.sug{background:#fff;border:1px solid var(--line);border-left:4px solid var(--accent);
  border-radius:0 13px 13px 0;padding:12px 15px;margin-bottom:10px}
.sug .p{font-size:13.5px;color:var(--bad);font-weight:600;margin-bottom:4px}
.sug .a{font-size:13.5px;color:var(--ink-2)}
.model-essay{background:linear-gradient(160deg,var(--brand-softer),#fff);
  border:1px solid var(--line);border-radius:var(--r-md);padding:16px;
  font-size:14px;line-height:1.9;white-space:pre-wrap;color:var(--ink)}

.empty{text-align:center;color:var(--ink-3);padding:34px 12px;font-size:14px}
.mt{margin-top:14px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:560px){.grid2{grid-template-columns:1fr}}
.sep{height:1px;background:var(--line);margin:16px 0}
.mini{font-size:12.5px;color:var(--ink-3)}
.center{text-align:center}
.help-toc{background:var(--brand-softer);border:1px solid var(--line);border-radius:var(--r-md);padding:14px 18px}
.help-toc ol{margin:6px 0 0;padding-left:20px}
.help-toc li{font-size:13.5px;color:var(--ink-2);padding:3px 0}
.help-h{font-size:16px;font-weight:700;color:var(--brand-deep);margin:24px 0 10px}
.help-ul{padding-left:20px;margin:8px 0}
.help-ul li{font-size:14px;color:var(--ink-2);padding:3px 0;line-height:1.8}
code{background:var(--brand-soft);color:var(--brand-deep);padding:1px 6px;border-radius:5px;font-size:13px}
.student-pill{display:inline-flex;align-items:center;gap:5px;background:var(--brand-soft);
  color:var(--brand);border-radius:20px;padding:4px 12px;font-size:12.5px;font-weight:600}
.tag-demo{background:var(--warn-bg);color:var(--warn);font-size:11px;font-weight:700;
  padding:2px 8px;border-radius:20px;margin-left:6px;vertical-align:middle}

/* ===== 学生管理表格（班级管理页）===== */
.stu-table td{vertical-align:middle}
.stu-table .stu-name{font-weight:600;color:var(--ink)}
.stu-table .op-cell{white-space:nowrap;text-align:right}
.stu-table .op-cell .btn.sm{margin-left:6px}
.stu-table .edit-row>td{background:var(--brand-softer);padding:14px 16px}
.edit-form{display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:12px;align-items:end}
@media(max-width:720px){.edit-form{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.edit-form{grid-template-columns:1fr}}
.edit-form .field{margin:0}
.edit-form .field label{font-size:12.5px}
.edit-actions{display:flex;gap:8px;align-items:center}
.edit-actions .btn{margin:0}

/* ===== 评价表文件上传（内联按钮式）===== */
.upload-inline{display:inline-flex;align-items:center;cursor:pointer}
.upload-inline .btn{cursor:pointer}