/* Thomas English 学情平台 —— 白底蓝字、大字号 */
:root {
  --blue: #14509b;
  --blue-2: #1d6fd8;
  --blue-light: #eaf2fd;
  --blue-line: #c9dcf5;
  --ink: #1b2a3d;
  --ink-2: #4a5b70;
  --line: #d8e2ee;
  --bg: #ffffff;
  --bg-soft: #f5f8fc;
  --red: #c8341f;
  --green: #1a7a45;
  --amber: #a86a00;
}
* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
}
button, input, select, textarea {
  font-family: inherit; font-size: 17px; color: var(--ink);
}
h1, h2, h3 { color: var(--blue); margin: 0 0 12px; font-weight: 700; }
h1 { font-size: 30px; }
h2 { font-size: 23px; }
h3 { font-size: 19px; }
a { color: var(--blue-2); }

/* ---------- 登录 ---------- */
.login-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(180deg, #f2f7fd 0%, #ffffff 60%);
  padding: 24px;
}
.login-card {
  width: 100%; max-width: 460px; background: #fff;
  border: 2px solid var(--blue-line); border-radius: 16px;
  padding: 34px 32px; box-shadow: 0 10px 40px rgba(20, 80, 155, .10);
}
.login-card .logo { text-align: center; margin-bottom: 22px; }
.login-card .logo .t { font-size: 30px; font-weight: 800; color: var(--blue); letter-spacing: .5px; }
.login-card .logo .s { font-size: 16px; color: var(--ink-2); margin-top: 4px; }
.role-tabs { display: flex; gap: 8px; margin-bottom: 22px; }
.role-tabs button {
  flex: 1; padding: 12px 0; border: 2px solid var(--blue-line); background: #fff;
  color: var(--blue); border-radius: 10px; font-size: 17px; font-weight: 700; cursor: pointer;
}
.role-tabs button.on { background: var(--blue); color: #fff; border-color: var(--blue); }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 16px; color: var(--ink-2); margin-bottom: 6px; font-weight: 600; }
.field input {
  width: 100%; padding: 12px 14px; border: 2px solid var(--line); border-radius: 10px;
  font-size: 18px; outline: none; background: #fff;
}
.field input:focus { border-color: var(--blue-2); }
.btn {
  display: inline-block; padding: 11px 20px; border-radius: 10px; border: 2px solid var(--blue);
  background: var(--blue); color: #fff; font-size: 17px; font-weight: 700; cursor: pointer;
}
.btn:hover { background: var(--blue-2); border-color: var(--blue-2); }
.btn.ghost { background: #fff; color: var(--blue); }
.btn.ghost:hover { background: var(--blue-light); }
.btn.sm { padding: 6px 13px; font-size: 15px; border-radius: 8px; }
.btn.danger { background: #fff; color: var(--red); border-color: #e2b3aa; }
.btn.danger:hover { background: #fdf0ec; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-block { width: 100%; padding: 13px; font-size: 19px; }
.err { color: var(--red); font-size: 15px; min-height: 22px; margin-top: 8px; text-align: center; }
.tip { font-size: 15px; color: var(--ink-2); background: var(--bg-soft); border-left: 4px solid var(--blue-2); padding: 10px 14px; border-radius: 6px; margin-top: 16px; }

/* ---------- 主体 ---------- */
.topbar {
  background: var(--blue); color: #fff; padding: 14px 26px;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
}
.topbar .brand { font-size: 24px; font-weight: 800; letter-spacing: .5px; }
.topbar .right { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.topbar .who { font-size: 17px; font-weight: 600; }
.topbar .who small { font-weight: 400; opacity: .85; }
.topbar button {
  background: rgba(255,255,255,.14); border: 1.5px solid rgba(255,255,255,.5); color: #fff;
  padding: 7px 15px; border-radius: 8px; cursor: pointer; font-size: 16px;
}
.topbar button:hover { background: rgba(255,255,255,.28); }

.container { max-width: 1360px; margin: 0 auto; padding: 20px 22px 70px; }

.tabs { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 6px; }
.tabs.big button { font-size: 20px; padding: 12px 30px; }
.tabs button {
  padding: 10px 22px; border: 2px solid var(--blue-line); background: #fff; color: var(--blue);
  border-radius: 10px; font-size: 17px; font-weight: 700; cursor: pointer;
}
.tabs button:hover { background: var(--blue-light); }
.tabs button.on { background: var(--blue); color: #fff; border-color: var(--blue); }
.section-title { margin: 22px 0 10px; }

.panel {
  background: #fff; border: 1.5px solid var(--line); border-radius: 14px; padding: 20px 22px;
  margin-top: 14px;
}
.panel h3 { margin-bottom: 14px; }

.row { display: flex; gap: 14px; flex-wrap: wrap; align-items: flex-end; }
.row .field { margin-bottom: 0; }
.row .field input { min-width: 160px; }

table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { border: 1px solid var(--line); padding: 9px 10px; text-align: center; font-size: 16px; }
th { background: var(--blue-light); color: var(--blue); font-weight: 700; white-space: nowrap; }
td.name, th.name { text-align: left; white-space: nowrap; }
tbody tr:nth-child(even) { background: #fafcff; }
tbody tr:hover { background: var(--blue-light); }
td input {
  width: 84px; padding: 6px 8px; border: 1.5px solid var(--line); border-radius: 7px; text-align: center; font-size: 16px;
}
td input:focus { border-color: var(--blue-2); outline: none; }
td input.wide { width: 100%; text-align: left; }
.scroll-x { overflow-x: auto; }

.grid-names { display: flex; flex-wrap: wrap; gap: 8px; }
.grid-names button {
  padding: 8px 15px; border: 1.5px solid var(--blue-line); background: #fff; color: var(--blue);
  border-radius: 9px; cursor: pointer; font-size: 16px; font-weight: 600;
}
.grid-names button:hover { background: var(--blue-light); }
.grid-names button.on { background: var(--blue); color: #fff; border-color: var(--blue); }

.cards { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 16px; }
.card {
  flex: 1; min-width: 150px; background: var(--bg-soft); border: 1.5px solid var(--blue-line);
  border-radius: 12px; padding: 14px 16px;
}
.card .k { font-size: 15px; color: var(--ink-2); }
.card .v { font-size: 27px; font-weight: 800; color: var(--blue); line-height: 1.3; }
.card .v small { font-size: 16px; font-weight: 600; }

.badge { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 15px; font-weight: 700; }
.badge.good { background: #e6f4ec; color: var(--green); }
.badge.warn { background: #fdf2dd; color: var(--amber); }
.badge.bad { background: #fdeceb; color: var(--red); }
.badge.blue { background: var(--blue-light); color: var(--blue); }

.empty { color: var(--ink-2); padding: 26px; text-align: center; font-size: 17px; }
.msg { padding: 10px 14px; border-radius: 8px; margin-top: 12px; font-size: 16px; display: none; }
.msg.ok { display: block; background: #e9f5ee; color: var(--green); border: 1px solid #bfe0cd; }
.msg.err { display: block; background: #fdeceb; color: var(--red); border: 1px solid #f0c5bf; }

textarea {
  width: 100%; min-height: 170px; padding: 12px; border: 2px solid var(--line); border-radius: 10px;
  font-size: 15px; font-family: ui-monospace, Menlo, Consolas, monospace; line-height: 1.5; outline: none;
}
textarea:focus { border-color: var(--blue-2); }

/* ---------- 弹窗 ---------- */
.mask {
  position: fixed; inset: 0; background: rgba(20, 35, 60, .45); display: flex;
  align-items: center; justify-content: center; padding: 20px; z-index: 50;
}
.dialog {
  background: #fff; border-radius: 16px; padding: 26px 28px; width: 100%; max-width: 480px;
  border: 2px solid var(--blue-line); max-height: 92vh; overflow-y: auto;
}
.dialog h3 { margin-bottom: 16px; }
.dialog .actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; flex-wrap: wrap; }
.dlg-text { font-size: 17px; color: var(--ink); line-height: 1.7; white-space: pre-wrap; }

/* ---------- 学生报告 ---------- */
.report-head {
  display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap;
  border-bottom: 3px solid var(--blue); padding-bottom: 10px; margin-bottom: 16px;
}
.report-head .nm { font-size: 27px; font-weight: 800; color: var(--blue); }
.report-head .sub { font-size: 17px; color: var(--ink-2); }
.mod-head {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  background: var(--blue-light); border: 1.5px solid var(--blue-line); border-radius: 11px;
  padding: 11px 16px; margin: 20px 0 12px;
}
.mod-head .t { font-size: 21px; font-weight: 800; color: var(--blue); }
.mod-head .m { font-size: 17px; color: var(--ink); }
.mod-head .m b { color: var(--blue); }

/* ---------- 学生选择器（全选 / 部分选择） ---------- */
.pick-bar {
  display: flex; align-items: center; flex-wrap: wrap; gap: 9px;
  background: var(--bg-soft); border: 1.5px solid var(--blue-line);
  border-radius: 11px; padding: 11px 14px; margin-bottom: 14px;
}
.pick-bar .lb { font-size: 16px; color: var(--ink-2); font-weight: 600; }
.pick-bar input[type="number"] { width: 74px; padding: 6px 8px; }
.pick-bar input[type="text"], .pick-bar input[type="search"] { width: 190px; padding: 6px 10px; }
.pick-sep { width: 1px; height: 26px; background: var(--blue-line); margin: 0 4px; }
.pick-count { margin-left: auto; font-size: 16px; color: var(--ink-2); font-weight: 600; }
.pick-count b { color: var(--blue); font-size: 20px; }
.pick-count .act { color: var(--blue-2); cursor: pointer; text-decoration: underline; margin-left: 10px; font-weight: 600; }

/* 姓名格：复选框 + 可点击姓名 */
.grid-names .name-cell {
  display: flex; align-items: center; gap: 6px;
  border: 1.5px solid var(--blue-line); border-radius: 9px; background: #fff; padding: 4px 6px 4px 8px;
}
.grid-names .name-cell.sel { border-color: var(--blue); background: var(--blue-light); }
.grid-names .name-cell input[type="checkbox"] { width: 19px; height: 19px; accent-color: var(--blue); cursor: pointer; margin: 0; }
.grid-names .name-cell button {
  padding: 6px 10px; border: none; background: transparent; color: var(--blue);
  border-radius: 7px; cursor: pointer; font-size: 16px; font-weight: 600;
}
.grid-names .name-cell button:hover { background: var(--blue-light); }
.grid-names .name-cell button.on { background: var(--blue); color: #fff; }

/* 成绩录入表：勾选行高亮；只有存在勾选时才淡化未选行，避免整表发灰 */
tr.picked td { background: #eef5ff; }
tr.dim td { opacity: .72; }
.batch-bar {
  display: flex; align-items: center; flex-wrap: wrap; gap: 10px;
  border: 1.5px dashed var(--blue-line); border-radius: 11px; padding: 12px 14px; margin-top: 14px;
  background: #fbfdff;
}
.batch-bar .lb { font-size: 16px; color: var(--ink-2); font-weight: 600; }
.batch-bar input[type="number"] { width: 100px; padding: 6px 8px; }
.batch-bar select { padding: 6px 10px; max-width: 300px; }
.hint { font-size: 15px; color: var(--ink-2); }

@media (max-width: 720px) {
  body { font-size: 16px; }
  .container { padding: 14px 12px 60px; }
  th, td { padding: 7px 6px; font-size: 15px; }
  .topbar { padding: 12px 14px; }
  .topbar .brand { font-size: 20px; }
}