:root {
  color-scheme: light;
  --ink: #16202a;
  --muted: #637083;
  --line: #d8dee7;
  --paper: #f4f8fb;
  --panel: #ffffff;
  --navy: #063968;
  --deep-blue: #082c52;
  --sea: #0f7ca5;
  --green: #1c7763;
  --red: #b73535;
  --gold: #d6a23a;
  --blue: #1266a0;
  --shadow: 0 18px 44px rgba(18, 67, 105, 0.13);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", Arial, sans-serif;
  background:
    linear-gradient(115deg, rgba(6, 57, 104, 0.08), transparent 36%),
    linear-gradient(90deg, rgba(18, 102, 160, 0.05) 1px, transparent 1px),
    linear-gradient(0deg, rgba(18, 102, 160, 0.05) 1px, transparent 1px),
    var(--paper);
  background-size: 28px 28px;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 100vh;
}

.portal-page {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 32px;
}

.portal-hero {
  position: relative;
  overflow: hidden;
  width: min(980px, 100%);
  padding: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.96)),
    var(--panel);
  box-shadow: var(--shadow);
}

.portal-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 8px;
  background: linear-gradient(90deg, var(--navy), var(--sea), var(--gold));
}

.portal-brand {
  margin-bottom: 42px;
  color: var(--ink);
}

.portal-brand .brand-mark {
  color: #fff;
  border-color: rgba(6, 57, 104, 0.12);
  background: linear-gradient(135deg, var(--navy), var(--sea));
}

.portal-brand span {
  color: var(--muted);
}

.portal-copy {
  max-width: 680px;
  margin: 18px 0 28px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.portal-hero h1 {
  max-width: 690px;
}

.campus-visual {
  position: absolute;
  top: 32px;
  right: 34px;
  width: 260px;
  height: 130px;
  opacity: 0.88;
  pointer-events: none;
}

.mountain-line {
  position: absolute;
  right: 0;
  bottom: 54px;
  width: 250px;
  height: 64px;
  background:
    linear-gradient(135deg, transparent 0 33%, rgba(6, 57, 104, 0.16) 34% 50%, transparent 51%),
    linear-gradient(45deg, transparent 0 42%, rgba(15, 124, 165, 0.2) 43% 58%, transparent 59%);
  clip-path: polygon(0 100%, 22% 45%, 37% 72%, 55% 25%, 75% 68%, 100% 38%, 100% 100%);
}

.sea-lines {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 260px;
  height: 58px;
  background:
    repeating-radial-gradient(ellipse at center, transparent 0 11px, rgba(18, 102, 160, 0.2) 12px 14px, transparent 15px 27px);
  clip-path: inset(0 0 0 0 round 8px);
}

.school-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.school-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid rgba(18, 102, 160, 0.22);
  border-radius: 999px;
  color: var(--navy);
  font-size: 13px;
  font-weight: 800;
  background: rgba(255, 255, 255, 0.72);
}

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

.portal-card {
  display: block;
  min-height: 150px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  text-decoration: none;
  background: #fbfcfe;
}

.portal-card:hover {
  border-color: var(--sea);
  box-shadow: 0 12px 30px rgba(18, 102, 160, 0.14);
}

.portal-card span,
.portal-card strong,
.portal-card small {
  display: block;
}

.portal-card span {
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}

.portal-card strong {
  margin-top: 14px;
  font-size: 24px;
}

.portal-card small {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
}

.sidebar {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 28px 22px;
  color: #fff;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 34%),
    linear-gradient(145deg, var(--navy), var(--deep-blue) 62%, #0a4d73),
    var(--navy);
}

.sidebar::after {
  content: "";
  position: absolute;
  left: -20px;
  right: -20px;
  bottom: 82px;
  height: 74px;
  opacity: 0.22;
  background:
    repeating-radial-gradient(ellipse at center, transparent 0 14px, rgba(255, 255, 255, 0.34) 15px 17px, transparent 18px 32px);
}

.sidebar > * {
  position: relative;
  z-index: 1;
}

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

.brand-mark {
  display: grid;
  place-items: center;
  width: 58px;
  height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 8px;
  color: #ffe7ad;
  font-size: 18px;
  font-weight: 800;
  background: rgba(255, 255, 255, 0.08);
}

.brand strong,
.brand span,
.candidate-card strong,
.candidate-card span,
.candidate-card small {
  display: block;
}

.brand strong {
  font-size: 20px;
}

.brand span,
.candidate-card small {
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
}

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

.nav-button {
  min-height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.84);
  text-align: left;
  padding: 0 14px;
  background: rgba(255, 255, 255, 0.06);
}

.nav-button.active,
.nav-button:hover {
  color: #fff;
  border-color: rgba(214, 162, 58, 0.65);
  background: rgba(255, 255, 255, 0.15);
}

.candidate-card {
  margin-top: auto;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(8, 19, 31, 0.28);
}

.school-card {
  padding: 16px;
  border: 1px solid rgba(214, 162, 58, 0.36);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(214, 162, 58, 0.12);
}

.school-card span,
.school-card strong,
.school-card small {
  display: block;
}

.school-card span {
  color: rgba(255, 231, 173, 0.92);
  font-size: 13px;
}

.school-card strong {
  margin-top: 8px;
  color: #fff;
  font-size: 18px;
}

.school-card small {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.5;
}

.candidate-card span {
  color: rgba(255, 255, 255, 0.68);
  font-size: 13px;
}

.candidate-card strong {
  margin-top: 8px;
  font-size: 17px;
}

.side-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.86);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.06);
}

.side-link:hover {
  color: #fff;
  border-color: rgba(255, 226, 168, 0.5);
}

.workspace {
  padding: 28px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 20px;
}

.eyebrow {
  margin: 0 0 7px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.12;
}

h2 {
  margin-bottom: 0;
  font-size: 25px;
}

.capacity-badge {
  min-width: 150px;
  padding: 14px 18px;
  border-radius: 8px;
  color: #fff;
  background: linear-gradient(135deg, var(--sea), var(--navy));
  box-shadow: var(--shadow);
}

.capacity-badge span,
.capacity-badge strong {
  display: block;
}

.capacity-badge span {
  font-size: 13px;
  opacity: 0.82;
}

.capacity-badge strong {
  font-size: 30px;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.metric,
.panel,
.question-card,
.exam-summary,
.admin-tile {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 8px 24px rgba(42, 58, 78, 0.06);
}

.panel {
  position: relative;
  overflow: hidden;
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: linear-gradient(90deg, var(--navy), var(--sea), var(--gold));
}

.metric {
  padding: 16px;
}

.metric span,
.admin-tile span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.metric strong {
  display: block;
  margin-top: 8px;
  font-size: 26px;
}

.panel {
  display: none;
  padding: 22px;
}

.panel.active {
  display: block;
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 22px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  color: var(--navy);
  font-weight: 800;
  background: rgba(18, 102, 160, 0.1);
}

.status-pill.live {
  color: var(--red);
  background: rgba(183, 53, 53, 0.1);
}

.login-form {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr)) auto;
  gap: 12px;
  align-items: end;
}

label span {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

input[type="text"],
input:not([type]) {
  width: 100%;
}

.login-form input,
.import-zone input[type="file"] {
  min-height: 44px;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  background: #fff;
}

.primary-button,
.ghost-button {
  min-height: 44px;
  border-radius: 8px;
  padding: 0 16px;
  font-weight: 800;
}

.primary-button {
  border: 1px solid var(--navy);
  color: #fff;
  background: linear-gradient(135deg, var(--navy), var(--sea));
}

.ghost-button {
  border: 1px solid var(--line);
  color: var(--navy);
  background: #fff;
}

.warning {
  min-height: 24px;
  margin: 14px 0 0;
  color: var(--red);
}

.exam-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.exam-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 16px;
  align-items: start;
}

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

.question-card {
  padding: 18px;
}

.question-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}

.question-card h3 {
  margin: 12px 0;
  font-size: 18px;
  line-height: 1.45;
}

.options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.option {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfe;
}

.option input {
  width: 16px;
  height: 16px;
}

.option-label {
  display: grid;
  place-items: center;
  flex: 0 0 28px;
  height: 28px;
  margin: 0;
  border-radius: 50%;
  color: #fff;
  font-weight: 800;
  background: var(--navy);
}

.exam-summary {
  display: grid;
  gap: 10px;
  padding: 16px;
  color: var(--muted);
}

.exam-summary strong {
  color: var(--ink);
}

.result-strip,
.import-status,
.ranking-note {
  margin: 16px 0 0;
  padding: 12px 14px;
  border-radius: 8px;
  color: var(--navy);
  background: #eef6fa;
}

.import-zone {
  display: grid;
  grid-template-columns: minmax(220px, 380px) minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  min-height: 112px;
  padding: 18px;
  border: 1px dashed #98a8ba;
  border-radius: 8px;
  background: #fbfcfe;
}

.import-zone strong,
.import-zone span {
  display: block;
}

.import-zone span {
  margin-top: 8px;
  color: var(--muted);
}

.admin-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.admin-tile {
  padding: 16px;
}

.admin-tile strong {
  display: block;
  margin-top: 8px;
  font-size: 18px;
}

.ranking-wrap {
  max-height: 560px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

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

th,
td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
}

th {
  position: sticky;
  top: 0;
  z-index: 1;
  color: var(--muted);
  background: #f1f4f8;
}

.rank {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  color: #fff;
  font-weight: 900;
  background: #7b8794;
}

.rank-1 {
  background: var(--gold);
}

.rank-2 {
  background: var(--blue);
}

.rank-3 {
  background: var(--green);
}

@media (max-width: 980px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    min-height: auto;
  }

  .nav,
  .metrics,
  .login-form,
  .exam-layout,
  .admin-grid,
  .import-zone,
  .portal-actions {
    grid-template-columns: 1fr;
  }

  .topbar,
  .section-title {
    align-items: flex-start;
    flex-direction: column;
  }

  .campus-visual {
    position: relative;
    top: auto;
    right: auto;
    width: 100%;
    max-width: 320px;
    margin: -10px 0 24px;
  }
}

@media (max-width: 640px) {
  .workspace {
    padding: 18px;
  }

  .sidebar {
    padding: 20px;
  }

  .options {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 30px;
  }

  .portal-page {
    padding: 18px;
  }

  .portal-hero {
    padding: 30px 22px;
  }
}