* {
  box-sizing: border-box;
}

:root {
  --bg: #f4f7fb;
  --card: #ffffff;
  --primary: #3d6ae8;
  --primary-dark: #274bb0;
  --text: #24324a;
  --subtext: #6f7d95;
  --border: #dfe6f1;
  --success: #1f9d63;
  --warning: #f4a62a;
  --danger: #df4d4d;
  --shadow: 0 14px 40px rgba(47, 83, 151, 0.12);
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  background: linear-gradient(180deg, #eef3ff 0%, var(--bg) 240px);
  color: var(--text);
}

.public-layout {
  min-height: 100vh;
}

.public-hero {
  padding: 42px 28px 28px;
  background: linear-gradient(135deg, #17315f, #315fd6 60%, #77b3ff 100%);
  color: #fff;
}

.public-hero-inner {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  align-items: center;
}

.public-hero h1 {
  margin: 0 0 16px;
  font-size: 38px;
}

.public-hero p {
  margin: 0;
  line-height: 1.85;
  max-width: 760px;
}

.public-actions {
  margin-top: 22px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.public-stat-board {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.public-stat-board div {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 18px;
  padding: 18px 16px;
  display: grid;
  gap: 8px;
  text-align: center;
}

.public-stat-board strong {
  font-size: 30px;
}

.public-stat-board span {
  font-size: 13px;
  opacity: 0.92;
}

.public-main {
  max-width: 1240px;
  margin: 0 auto;
  padding: 24px 28px 36px;
}

.public-cards {
  margin-top: 0;
}

.public-intro-panel,
.public-student-panel {
  margin-top: 18px;
}


button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
  border: none;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-card {
  width: min(1040px, 100%);
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  background: var(--card);
  border-radius: 28px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.login-hero {
  padding: 48px;
  background: linear-gradient(135deg, rgba(61, 106, 232, 0.96), rgba(94, 157, 255, 0.82));
  color: #fff;
}

.hero-tag,
.panel-label {
  display: inline-flex;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.hero-tag {
  background: rgba(255, 255, 255, 0.16);
  margin-bottom: 18px;
}

.panel-label {
  background: #eef3ff;
  color: var(--primary);
  margin-bottom: 10px;
}

.login-hero h1 {
  font-size: 34px;
  margin: 0 0 18px;
}

.login-hero p {
  line-height: 1.8;
  opacity: 0.96;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-badges span {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  font-size: 14px;
}

.hero-summary {
  margin-top: 26px;
  display: grid;
  gap: 12px;
}

.hero-summary div {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.12);
}

.hero-summary strong {
  font-size: 13px;
}

.hero-summary span {
  font-size: 14px;
  line-height: 1.7;
}

.login-form {
  padding: 42px 40px;
}

.login-form h2 {
  margin: 0 0 8px;
  font-size: 28px;
}

.login-form .muted {
  color: var(--subtext);
  margin-bottom: 28px;
}

.field {
  margin-bottom: 18px;
}

.field label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
}

.field input,
.field textarea,
.field select,
.search-input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #fbfcff;
  transition: 0.2s ease;
}

.field textarea {
  min-height: 96px;
  resize: vertical;
}

.field input:focus,
.field textarea:focus,
.field select:focus,
.search-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(61, 106, 232, 0.12);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  border-radius: 14px;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  transition: 0.2s ease;
}

.btn:hover {
  background: var(--primary-dark);
}

.btn.secondary {
  background: #edf2ff;
  color: var(--primary);
}

.btn.secondary:hover {
  background: #dde7ff;
}

.btn.ghost {
  background: transparent;
  color: var(--subtext);
  border: 1px solid var(--border);
}

.btn.danger {
  background: var(--danger);
}

.form-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.tips-box {
  margin-top: 28px;
  padding: 16px 18px;
  border-radius: 18px;
  background: #f6f8fc;
  color: var(--subtext);
  line-height: 1.7;
}

.layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: #14233f;
  color: #fff;
  padding: 28px 22px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 800;
  background: linear-gradient(135deg, #6b8eff, #85c4ff);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.brand h1 {
  margin: 0;
  font-size: 24px;
}

.brand p,
.note-light {
  margin: 8px 0 0;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.7;
  font-size: 14px;
}

.nav-group {
  display: grid;
  gap: 10px;
}

.nav-button {
  padding: 14px 16px;
  border-radius: 16px;
  color: rgba(255, 255, 255, 0.84);
  background: transparent;
  text-align: left;
}

.nav-button.active,
.nav-button:hover {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

.sidebar-card {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.08);
  line-height: 1.7;
}

.sidebar-card strong {
  display: block;
  margin-bottom: 8px;
}

.sidebar-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
}

.user-box {
  margin-top: auto;
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.08);
}

.user-box p {
  margin: 0 0 6px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 13px;
}

.main {
  padding: 28px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 22px;
}

.topbar h2 {
  margin: 0;
  font-size: 30px;
}

.topbar p {
  margin: 8px 0 0;
  color: var(--subtext);
  line-height: 1.7;
}

.topbar-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.grid {
  display: grid;
  gap: 18px;
}

.grid.cards {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  background: var(--card);
  border-radius: 22px;
  box-shadow: var(--shadow);
  padding: 20px;
}

.stat-card {
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  border-radius: 22px 0 0 22px;
}

.accent-blue::before { background: #4b73f3; }
.accent-purple::before { background: #7b61ff; }
.accent-green::before { background: #1f9d63; }
.accent-orange::before { background: #f4a62a; }

.stat-card h3 {
  margin: 0;
  color: var(--subtext);
  font-size: 14px;
  font-weight: 600;
}

.stat-card strong {
  display: block;
  margin-top: 12px;
  font-size: 34px;
}

.stat-card span {
  display: block;
  margin-top: 10px;
  color: var(--subtext);
  font-size: 13px;
  line-height: 1.6;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.badge.success { background: rgba(31, 157, 99, 0.15); color: var(--success); }
.badge.warning { background: rgba(244, 166, 42, 0.16); color: #b77805; }
.badge.primary { background: rgba(61, 106, 232, 0.14); color: var(--primary); }
.badge.danger { background: rgba(223, 77, 77, 0.12); color: var(--danger); }

.hero-panel {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 20px;
  align-items: center;
  margin-top: 18px;
  background: linear-gradient(135deg, #f8fbff, #ffffff);
}

.hero-panel h3 {
  margin: 0 0 10px;
  font-size: 24px;
}

.hero-panel p {
  margin: 0;
  color: var(--subtext);
  line-height: 1.8;
}

.hero-panel-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.hero-panel-grid div {
  padding: 18px 16px;
  border-radius: 18px;
  background: #f6f8fd;
  display: grid;
  gap: 8px;
  text-align: center;
}

.hero-panel-grid strong {
  font-size: 26px;
}

.hero-panel-grid span {
  font-size: 13px;
  color: var(--subtext);
}

.toolbar {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 14px;
  align-items: center;
}

.actions-inline {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.actions-search {
  align-items: center;
}

.search-input {
  min-width: 240px;
  max-width: 360px;
}

.table-wrap {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead th {
  text-align: left;
  font-size: 13px;
  color: var(--subtext);
  font-weight: 700;
  padding-bottom: 14px;
}

tbody td {
  padding: 14px 0;
  border-top: 1px solid #edf1f7;
  vertical-align: top;
}

.compact-table tbody td {
  padding: 12px 0;
}

.link-btn {
  background: none;
  color: var(--primary);
  padding: 0;
  font-weight: 700;
}

.section-title {
  margin: 0 0 14px;
  font-size: 20px;
}

.panel-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
}

.dashboard-grid {
  align-items: start;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.compact-metrics-grid {
  gap: 14px;
}

.metric-box {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  background: #fafcff;
}

.polished-box {
  background: linear-gradient(180deg, #fafcff, #f6f9ff);
}

.metric-box h4 {
  margin: 0 0 10px;
}

.metric-score {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.metric-score input[type="range"] {
  flex: 1;
}

.metric-score strong {
  width: 28px;
  text-align: center;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.full {
  grid-column: 1 / -1;
}

.form-shell,
.archive-panel,
.student-overview,
.chart-card,
.record-card {
  border: 1px solid rgba(223, 230, 241, 0.72);
}

.form-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.score-summary-box {
  min-width: 160px;
  padding: 16px 18px;
  border-radius: 18px;
  background: #f4f7ff;
  display: grid;
  gap: 6px;
}

.inline-select-row {
  display: flex;
  gap: 10px;
  align-items: stretch;
}

.inline-select-row select {
  flex: 1;
}

.inline-student-box {
  padding: 18px;
  border-radius: 18px;
  background: linear-gradient(180deg, #f8fbff, #f3f7ff);
  border: 1px dashed #bfd1f8;
}

.inline-student-head {
  display: grid;
  gap: 6px;
  margin-bottom: 14px;
}

.inline-student-head strong {
  font-size: 15px;
}

.inline-student-head span {
  font-size: 13px;
  color: var(--subtext);
  line-height: 1.7;
}


.score-summary-box span {
  font-size: 12px;
  color: var(--subtext);
}

.score-summary-box strong {
  font-size: 22px;
}

.empty {
  padding: 32px 18px;
  text-align: center;
  color: var(--subtext);
  border: 1px dashed var(--border);
  border-radius: 18px;
}

.record-list {
  display: grid;
  gap: 14px;
}

.record-item {
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 16px;
  background: #fbfcff;
}

.soft-card {
  background: linear-gradient(180deg, #fcfdff, #f8faff);
}

.timeline-item {
  border-left: 4px solid rgba(61, 106, 232, 0.2);
}

.record-item header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.record-item p {
  margin: 8px 0 0;
  color: var(--subtext);
  line-height: 1.7;
}

.record-score-box {
  display: flex;
  align-items: center;
  gap: 10px;
}

.score-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.score-pills span {
  padding: 7px 12px;
  border-radius: 999px;
  background: #eef3ff;
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
}

.note {
  color: var(--subtext);
  font-size: 13px;
  line-height: 1.7;
}

.alert {
  padding: 12px 14px;
  border-radius: 14px;
  margin-bottom: 16px;
  font-size: 14px;
}

.alert.error {
  background: rgba(223, 77, 77, 0.12);
  color: var(--danger);
}

.alert.success {
  background: rgba(31, 157, 99, 0.12);
  color: var(--success);
}

.student-overview {
  margin-top: 18px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.overview-grid div {
  padding: 16px;
  border-radius: 16px;
  background: #f7f9fe;
  display: grid;
  gap: 6px;
}

.overview-grid span {
  color: var(--subtext);
  font-size: 12px;
}

.overview-grid strong {
  font-size: 15px;
  line-height: 1.6;
}

.detail-layout {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: 18px;
  margin-top: 18px;
  align-items: start;
}

.chart-stack {
  display: grid;
  gap: 14px;
}

.chart-box {
  padding: 14px;
  border-radius: 18px;
  background: #f8fbff;
  border: 1px solid var(--border);
}

.chart-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--subtext);
  margin-bottom: 10px;
}

.small-chart-box {
  height: 235px;
}

.radar-box {
  height: 255px;
}

canvas {
  width: 100% !important;
  height: 100% !important;
  max-height: none;
}

@media (max-width: 1180px) {
  .detail-layout,
  .hero-panel,
  .panel-grid,
  .login-card,
  .layout {
    grid-template-columns: 1fr;
  }

  .overview-grid,
  .hero-panel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid.cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .main {
    padding: 18px;
  }

  .grid.cards,
  .metrics-grid,
  .form-grid,
  .overview-grid,
  .hero-panel-grid {
    grid-template-columns: 1fr;
  }

  .topbar,
  .form-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .small-chart-box,
  .radar-box {
    height: 220px;
  }
}