:root {
  --bg: #f7fbff;
  --surface: #ffffff;
  --surface-blue: #eef6ff;
  --ink: #102033;
  --muted: #5c6f86;
  --line: #d9e6f2;
  --line-strong: #b7cfe6;
  --primary: #145fa8;
  --primary-deep: #0b3d73;
  --primary-soft: #dceeff;
  --success: #0f766e;
  --danger: #b42318;
  --warning-bg: #fff6db;
  --radius: 8px;
  --shadow: 0 16px 40px rgba(18, 74, 128, 0.1);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  min-height: 100%;
  margin: 0;
  color: var(--ink);
  overflow-x: hidden;
  font-family:
    "Microsoft YaHei UI",
    "PingFang SC",
    "Hiragino Sans GB",
    "Noto Sans CJK SC",
    system-ui,
    sans-serif;
  line-height: 1.6;
  background:
    radial-gradient(circle at 14% 8%, rgba(20, 95, 168, 0.12), transparent 34rem),
    radial-gradient(circle at 88% 16%, rgba(15, 118, 110, 0.08), transparent 28rem),
    linear-gradient(rgba(20, 95, 168, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 95, 168, 0.045) 1px, transparent 1px),
    var(--bg);
  background-size: auto, auto, 42px 42px, 42px 42px, auto;
}

body[data-page="student"]::before {
  content: "";
  position: fixed;
  inset: -20%;
  z-index: -3;
  pointer-events: none;
  background:
    linear-gradient(115deg, transparent 0 38%, rgba(42, 135, 218, 0.1) 46%, transparent 56%),
    linear-gradient(90deg, rgba(20, 95, 168, 0.03) 1px, transparent 1px),
    linear-gradient(rgba(20, 95, 168, 0.03) 1px, transparent 1px);
  background-size: auto, 56px 56px, 56px 56px;
  animation: gridDrift 22s linear infinite;
}

body[data-page="student"]::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 18%, rgba(255, 255, 255, 0.72), transparent 22rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0), rgba(247, 251, 255, 0.86));
}

.aurora-stage {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.aurora-orbit {
  position: absolute;
  width: 44vw;
  height: 44vw;
  min-width: 440px;
  min-height: 440px;
  border-radius: 50%;
  filter: blur(34px);
  opacity: 0.34;
  transform: translate3d(0, 0, 0);
}

.orbit-a {
  top: -16%;
  left: -12%;
  background:
    radial-gradient(circle at 32% 34%, rgba(20, 95, 168, 0.38), transparent 42%),
    radial-gradient(circle at 68% 62%, rgba(83, 166, 245, 0.24), transparent 46%);
  animation: orbitFloatA 18s var(--ease) infinite alternate;
}

.orbit-b {
  right: -16%;
  bottom: 8%;
  background:
    radial-gradient(circle at 38% 42%, rgba(15, 118, 110, 0.2), transparent 42%),
    radial-gradient(circle at 70% 58%, rgba(20, 95, 168, 0.22), transparent 48%);
  animation: orbitFloatB 21s var(--ease) infinite alternate;
}

.scan-line {
  position: absolute;
  top: 0;
  left: -20%;
  width: 140%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(20, 95, 168, 0.34), transparent);
  box-shadow: 0 0 24px rgba(20, 95, 168, 0.24);
  animation: scanSweep 7s var(--ease) infinite;
}

button,
input,
select {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

.page-shell {
  position: relative;
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 24px 0 64px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: #fff;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  border-radius: var(--radius);
  box-shadow: 0 10px 24px rgba(20, 95, 168, 0.18);
}

.brand-lockup strong,
.brand-lockup small {
  display: block;
}

.brand-lockup strong {
  font-size: 16px;
  letter-spacing: 0;
}

.brand-lockup small {
  color: var(--muted);
  font-size: 12px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-actions a,
.secondary-button {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--primary-deep);
  background: rgba(255, 255, 255, 0.72);
  padding: 9px 14px;
  transition:
    transform 180ms var(--ease),
    border-color 180ms var(--ease),
    background 180ms var(--ease);
}

.header-actions a:hover,
.secondary-button:hover {
  border-color: var(--primary);
  background: #fff;
}

.student-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 430px;
  gap: 40px;
  align-items: center;
  min-height: calc(100dvh - 136px);
  padding: 28px 0 44px;
}

.student-hero::before {
  content: "";
  position: absolute;
  inset: 8% 35% auto auto;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(20, 95, 168, 0.16);
  border-radius: 50%;
  background:
    linear-gradient(90deg, transparent 49%, rgba(20, 95, 168, 0.12) 50%, transparent 51%),
    linear-gradient(0deg, transparent 49%, rgba(20, 95, 168, 0.12) 50%, transparent 51%);
  opacity: 0.55;
  animation: instrumentRotate 24s linear infinite;
}

.hero-copy {
  position: relative;
  max-width: 660px;
}

.system-kicker,
.panel-code,
.section-title span {
  color: var(--primary);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.system-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.system-kicker::before {
  content: "";
  width: 36px;
  height: 1px;
  background: linear-gradient(90deg, var(--primary), transparent);
}

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

.hero-copy h1,
.login-copy h1,
.dashboard-heading h1 {
  margin-bottom: 18px;
  font-size: 56px;
  line-height: 1.08;
  letter-spacing: 0;
}

.hero-copy h1 {
  text-shadow: 0 18px 44px rgba(20, 95, 168, 0.16);
}

.hero-copy p,
.login-copy p,
.dashboard-heading p {
  max-width: 64ch;
  color: var(--muted);
  font-size: 17px;
}

.query-panel,
.login-card,
.upload-panel,
.batch-panel,
.score-card,
.student-summary,
.state-section,
.upload-result {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
}

.query-panel {
  position: relative;
  overflow: hidden;
  border-color: rgba(143, 190, 229, 0.78);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(247, 251, 255, 0.88)),
    rgba(255, 255, 255, 0.92);
  box-shadow:
    0 24px 70px rgba(18, 74, 128, 0.16),
    inset 0 1px 0 rgba(255, 255, 255, 0.92);
  transition:
    transform 320ms var(--ease),
    box-shadow 320ms var(--ease),
    border-color 320ms var(--ease);
}

.query-panel:hover {
  transform: translateY(-3px);
  border-color: rgba(20, 95, 168, 0.42);
  box-shadow:
    0 30px 86px rgba(18, 74, 128, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.96);
}

.query-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(120deg, transparent 18%, rgba(67, 151, 232, 0.64), transparent 46%);
  mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  mask-composite: exclude;
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  opacity: 0.76;
  animation: borderSweep 4.8s var(--ease) infinite;
  pointer-events: none;
}

.query-panel::after {
  content: "";
  position: absolute;
  top: 0;
  left: 22px;
  right: 22px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(20, 95, 168, 0.54), transparent);
  box-shadow: 0 0 18px rgba(20, 95, 168, 0.28);
  pointer-events: none;
}

.query-panel,
.login-card,
.upload-panel,
.batch-panel,
.score-card,
.student-summary,
.state-section,
.upload-result {
  padding: 26px;
}

.panel-heading {
  margin-bottom: 22px;
}

.panel-heading h2 {
  margin: 4px 0 6px;
  font-size: 24px;
}

.panel-heading p,
.result-note {
  color: var(--muted);
  margin-bottom: 0;
}

.query-form,
.login-card,
.upload-form {
  display: grid;
  gap: 16px;
}

label span {
  display: block;
  margin-bottom: 7px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

input,
select {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  padding: 10px 12px;
  outline: none;
  transition:
    border-color 180ms var(--ease),
    box-shadow 180ms var(--ease);
}

input::placeholder {
  color: #6f8298;
}

input:focus,
select:focus {
  border-color: var(--primary);
  box-shadow:
    0 0 0 4px rgba(20, 95, 168, 0.13),
    0 10px 26px rgba(20, 95, 168, 0.1);
}

.form-hint {
  min-height: 22px;
  margin: 0;
  color: var(--danger);
  font-size: 14px;
}

.primary-button {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  min-height: 48px;
  border: 0;
  border-radius: var(--radius);
  background: var(--primary);
  color: #fff;
  cursor: pointer;
  font-weight: 800;
  transition:
    transform 180ms var(--ease),
    background 180ms var(--ease);
}

.primary-button::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 0 28%, rgba(255, 255, 255, 0.32) 42%, transparent 56%);
  transform: translateX(-120%);
  transition: transform 680ms var(--ease);
}

.primary-button:hover {
  background: var(--primary-deep);
}

.primary-button:hover::before {
  transform: translateX(120%);
}

.primary-button:active,
.secondary-button:active {
  transform: translateY(1px) scale(0.985);
}

.primary-button span,
.primary-button b {
  position: relative;
  z-index: 1;
}

.primary-button b {
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.16);
}

.result-section,
.state-section {
  margin-top: 20px;
}

.section-title {
  margin-bottom: 18px;
}

.section-title h2 {
  margin: 2px 0 0;
  font-size: 30px;
}

.result-layout {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 20px;
}

.student-summary p,
.score-topline p {
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 6px;
}

.student-summary h3 {
  margin-bottom: 22px;
  font-size: 30px;
}

dl {
  display: grid;
  gap: 16px;
  margin: 0;
}

dt {
  color: var(--muted);
  font-size: 13px;
}

dd {
  margin: 2px 0 0;
  font-weight: 800;
}

.score-topline {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
}

.score-topline h3,
.score-topline h2 {
  margin-bottom: 0;
}

.status-badge {
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 800;
}

.status-badge.success {
  background: #e7f6f4;
  color: var(--success);
}

.score-highlights {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.score-highlights article {
  min-height: 104px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(20, 95, 168, 0.1), rgba(255, 255, 255, 0) 72%),
    #fff;
  padding: 16px;
}

.score-highlights span,
.score-grid span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.score-highlights strong {
  display: block;
  margin-top: 8px;
  color: var(--primary-deep);
  font-size: 30px;
  line-height: 1;
}

.score-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 10px;
}

.score-grid article {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-height: 64px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 12px 14px;
}

.score-grid span {
  line-height: 1.45;
}

.score-grid strong {
  flex: 0 0 auto;
  min-width: 48px;
  color: var(--ink);
  font-size: 18px;
  text-align: right;
}

.state-section {
  display: grid;
  place-items: center;
  text-align: center;
  padding: 42px;
}

.state-icon {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  margin-bottom: 14px;
  border-radius: var(--radius);
  background: var(--warning-bg);
  color: #8a5a00;
  font-weight: 900;
}

.state-section p {
  max-width: 52ch;
  color: var(--muted);
}

.state-section .secondary-button {
  margin-top: 10px;
}

.admin-main {
  padding-top: 40px;
}

.login-view {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  gap: 42px;
  align-items: center;
  min-height: calc(100dvh - 180px);
}

.dashboard-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 16px;
}

.metric-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.86);
  padding: 20px;
}

.metric-grid span {
  color: var(--muted);
  font-size: 13px;
}

.metric-grid strong {
  display: block;
  margin: 4px 0;
  font-size: 34px;
  line-height: 1;
}

.metric-grid p {
  margin-bottom: 0;
  color: var(--primary-deep);
  font-size: 13px;
}

.admin-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 16px;
}

.file-drop {
  display: grid;
  place-items: center;
  min-height: 180px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  background:
    linear-gradient(rgba(20, 95, 168, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 95, 168, 0.04) 1px, transparent 1px),
    #fff;
  background-size: 24px 24px;
  cursor: pointer;
  text-align: center;
  padding: 22px;
}

.file-drop input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.file-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  margin-bottom: 10px;
  border-radius: var(--radius);
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 900;
}

.file-drop small {
  color: var(--muted);
}

.batch-list {
  display: grid;
  gap: 12px;
}

.batch-list article {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 14px;
}

.batch-list strong,
.batch-list span {
  display: block;
}

.batch-list span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
}

.batch-list b {
  color: var(--primary);
  white-space: nowrap;
}

.upload-result {
  margin-top: 16px;
}

.import-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 18px 0;
}

.import-grid div {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-blue);
  padding: 14px;
}

.import-grid span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.import-grid strong {
  display: block;
  font-size: 28px;
}

.hidden {
  display: none !important;
}

.reveal {
  animation: reveal 620ms var(--ease) both;
}

@keyframes reveal {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes gridDrift {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(56px, 56px, 0);
  }
}

@keyframes orbitFloatA {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }
  to {
    transform: translate3d(8vw, 5vh, 0) scale(1.08);
  }
}

@keyframes orbitFloatB {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }
  to {
    transform: translate3d(-7vw, -4vh, 0) scale(1.06);
  }
}

@keyframes scanSweep {
  0% {
    transform: translateY(-12vh);
    opacity: 0;
  }
  18%,
  62% {
    opacity: 1;
  }
  100% {
    transform: translateY(112vh);
    opacity: 0;
  }
}

@keyframes instrumentRotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes borderSweep {
  0%,
  100% {
    opacity: 0.18;
    transform: translateX(-42%);
  }
  45%,
  60% {
    opacity: 0.9;
  }
  100% {
    transform: translateX(42%);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }

  body[data-page="student"]::before,
  .aurora-orbit,
  .scan-line,
  .student-hero::before,
  .query-panel::before {
    animation: none !important;
  }
}

@media (max-width: 900px) {
  .page-shell {
    width: min(100% - 28px, 720px);
  }

  .site-header,
  .dashboard-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .student-hero,
  .login-view,
  .result-layout,
  .admin-grid {
    grid-template-columns: 1fr;
  }

  .student-hero,
  .login-view {
    min-height: auto;
    padding-top: 30px;
  }

  .student-hero::before {
    display: none;
  }

  .hero-copy h1,
  .login-copy h1,
  .dashboard-heading h1 {
    font-size: 40px;
  }

  .metric-grid,
  .import-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .page-shell {
    width: min(100% - 20px, 420px);
    padding-top: 14px;
  }

  .brand-lockup {
    align-items: flex-start;
  }

  .brand-lockup strong {
    font-size: 14px;
  }

  .hero-copy h1,
  .login-copy h1,
  .dashboard-heading h1 {
    font-size: 34px;
  }

  .query-panel,
  .login-card,
  .upload-panel,
  .batch-panel,
  .score-card,
  .student-summary,
  .state-section,
  .upload-result {
    padding: 18px;
  }

  .score-topline,
  .batch-list article {
    flex-direction: column;
  }

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