@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Share+Tech+Mono&display=swap');

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #ffffff;
  --bg-deep: #f4f4f5;
  --bg-card: rgba(255, 255, 255, 0.86);
  --primary: #0052ff;
  --primary-dark: #0041cc;
  --primary-light: rgba(0, 82, 255, 0.04);
  --accent: #09090b;
  --success: #10b981;
  --danger: #ff2a5f;
  --warning: #f59e0b;
  --text: #09090b;
  --text-secondary: #71717a;
  --text-muted: #a1a1aa;
  --border: #e4e4e7;
  --border-hover: #09090b;
  --radius: 4px;
  --radius-sm: 2px;
}

html,
body {
  min-height: 100%;
  overflow-y: auto;
}

body {
  font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
  background:
    linear-gradient(rgba(0, 82, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 82, 255, 0.018) 1px, transparent 1px),
    var(--bg);
  background-size: 80px 80px;
  -webkit-font-smoothing: antialiased;
  letter-spacing: 0;
}

body::before {
  content: '2026 年虚拟现实项目开发与应用大赛';
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 0;
  pointer-events: none;
  font-size: 10px;
  color: rgba(0, 82, 255, 0.22);
  letter-spacing: 2px;
}

body::after {
  content: '青岛市 VR+ 高素质技能人才培养联盟';
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 0;
  pointer-events: none;
  font-size: 10px;
  color: rgba(0, 82, 255, 0.22);
  letter-spacing: 2px;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  color: var(--accent);
}

a,
button,
input,
select,
textarea,
.panel,
.button,
.status,
.stat {
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

::-webkit-scrollbar {
  width: 4px;
  height: 4px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--primary);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 64px;
  padding: 0 32px;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.topbar strong {
  display: block;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text);
}

.topbar span {
  display: block;
  margin-top: 2px;
  color: var(--text-secondary);
  font-size: 12px;
  letter-spacing: 0.5px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  flex-wrap: wrap;
}

.page {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 32px 80px;
}

.narrow {
  position: relative;
  z-index: 1;
  max-width: 520px;
  margin: 48px auto;
  padding: 0 20px;
}

h2 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin-bottom: 18px;
}

h3 {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.panel {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 28px;
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.02),
    0 4px 12px rgba(0, 0, 0, 0.01);
}

.panel:hover {
  border-color: var(--border-hover);
  box-shadow:
    0 8px 24px rgba(0, 0, 0, 0.04),
    0 2px 4px rgba(0, 0, 0, 0.02);
}

.panel::before,
.panel::after {
  content: '';
  position: absolute;
  width: 10px;
  height: 10px;
  border: 1px solid var(--text);
  pointer-events: none;
  opacity: 0.15;
}

.panel::before {
  top: 6px;
  left: 6px;
  border-right: none;
  border-bottom: none;
}

.panel::after {
  right: 6px;
  bottom: 6px;
  border-top: none;
  border-left: none;
}

.panel:hover::before,
.panel:hover::after {
  opacity: 0.8;
  border-color: var(--primary);
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px 24px;
}

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

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

label,
.label {
  display: block;
  font-family: 'Share Tech Mono', monospace;
  font-weight: 600;
  font-size: 10px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

label input[type="checkbox"] {
  width: 14px;
  height: 14px;
  margin-right: 8px;
  accent-color: var(--primary);
  vertical-align: -2px;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font: inherit;
  font-size: 13.5px;
  color: var(--text);
  background: var(--bg-deep);
  -webkit-appearance: none;
}

select {
  cursor: pointer;
  padding-right: 40px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 12 12'%3E%3Cpath d='M3 5l3 3 3-3' fill='none' stroke='%2309090b' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

input::placeholder,
textarea::placeholder {
  color: var(--text-muted);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 2px 8px rgba(0, 82, 255, 0.05);
}

button,
.button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--primary);
  color: #fff;
  padding: 10px 18px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
}

button:hover,
.button:hover {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

button:active,
.button:active {
  transform: scale(0.98);
}

button:disabled,
.button:disabled {
  background: var(--border);
  color: var(--text-muted);
  cursor: not-allowed;
}

.button.secondary,
button.secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--text);
}

.button.secondary:hover,
button.secondary:hover {
  background: var(--text);
  color: #fff;
}

.button.danger,
button.danger {
  background: transparent;
  color: var(--danger);
  border-color: var(--danger);
}

.button.danger:hover,
button.danger:hover {
  background: var(--danger);
  color: #fff;
}

.button.warn,
button.warn {
  background: transparent;
  color: var(--warning);
  border-color: var(--warning);
}

.button.warn:hover,
button.warn:hover {
  background: var(--warning);
  color: #fff;
}

.inline-form {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  margin: 0;
}

.upload-form {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.upload-box {
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 4px 14px;
  align-items: center;
  min-height: 108px;
  padding: 18px;
  border: 1px dashed var(--primary);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(0, 82, 255, 0.055), rgba(255, 255, 255, 0.9)),
    var(--bg-deep);
  cursor: pointer;
  overflow: hidden;
}

.upload-box::before,
.upload-box::after {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  border: 1px solid var(--primary);
  opacity: 0.35;
  pointer-events: none;
}

.upload-box::before {
  top: 8px;
  left: 8px;
  border-right: none;
  border-bottom: none;
}

.upload-box::after {
  right: 8px;
  bottom: 8px;
  border-left: none;
  border-top: none;
}

.upload-box:hover,
.upload-box:focus-within {
  border-style: solid;
  border-color: var(--text);
  background:
    linear-gradient(135deg, rgba(0, 82, 255, 0.08), #fff),
    var(--bg);
  box-shadow: 0 8px 20px rgba(0, 82, 255, 0.06);
}

.upload-box.has-file {
  border-style: solid;
  border-color: var(--success);
  background:
    linear-gradient(135deg, rgba(16, 185, 129, 0.075), #fff),
    var(--bg);
}

.upload-input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.upload-mark {
  grid-row: 1 / span 3;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--primary);
  background: var(--primary);
  color: #fff;
  font-family: 'Share Tech Mono', monospace;
  font-size: 26px;
  line-height: 1;
}

.upload-box:hover .upload-mark {
  border-color: var(--text);
  background: var(--text);
}

.upload-box.has-file .upload-mark {
  border-color: var(--success);
  background: var(--success);
}

.upload-main {
  min-width: 0;
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
}

.upload-sub {
  min-width: 0;
  color: var(--text-secondary);
  font-size: 12px;
}

.upload-file-name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--primary);
  font-family: 'Share Tech Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.4px;
}

.upload-box.has-file .upload-file-name {
  color: var(--success);
}

.declaration-block {
  display: grid;
  gap: 14px;
}

.declaration-card {
  position: relative;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 18px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-deep);
  cursor: pointer;
  text-transform: none;
  letter-spacing: 0;
  font-family: inherit;
}

.declaration-card:hover {
  border-color: var(--text);
  background: #fff;
}

.declaration-card:has(.declaration-input:checked) {
  border-color: var(--primary);
  background: rgba(0, 82, 255, 0.035);
  box-shadow: inset 3px 0 0 var(--primary);
}

.declaration-card:has(.declaration-input:disabled) {
  cursor: default;
}

.declaration-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.declaration-check {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  margin-top: 2px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
  box-shadow: inset 0 0 0 2px #fff;
}

.declaration-check::after {
  content: '';
  width: 7px;
  height: 12px;
  border-right: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(45deg) translate(-1px, -1px) scale(0.6);
  opacity: 0;
}

.declaration-card:hover .declaration-check {
  border-color: var(--text);
}

.declaration-input:checked + .declaration-check {
  border-color: var(--primary);
  background: var(--primary);
}

.declaration-input:checked + .declaration-check::after {
  opacity: 1;
  transform: rotate(45deg) translate(-1px, -1px) scale(1);
}

.declaration-copy {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.declaration-title {
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
}

.declaration-text {
  color: var(--text-secondary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.8;
  letter-spacing: 0;
  text-transform: none;
}

.declaration-card:has(.declaration-input:checked) .declaration-title {
  color: var(--primary);
}

.declaration-block > form {
  margin: 0;
}

.declaration-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 10px;
  padding-top: 2px;
}

.notice {
  padding: 14px 20px;
  border: 1px solid var(--primary);
  border-radius: var(--radius-sm);
  margin: 0 0 24px;
  background: rgba(0, 82, 255, 0.02);
  color: var(--primary);
  font-family: 'Share Tech Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.5px;
}

.error {
  border-color: var(--danger);
  background: rgba(255, 42, 95, 0.02);
  color: var(--danger);
}

.message {
  border-color: var(--success);
  background: rgba(16, 185, 129, 0.02);
  color: var(--success);
}

.status {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 2px;
  border: 1px solid var(--text);
  background: transparent;
  color: var(--text);
  font-family: 'Share Tech Mono', monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.status.good {
  border-color: var(--success);
  color: var(--success);
}

.status.warn {
  border-color: var(--warning);
  color: var(--warning);
}

.status.bad {
  border-color: var(--danger);
  color: var(--danger);
}

.muted {
  color: var(--text-secondary);
}

.small {
  font-size: 12px;
}

.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--text);
  border-radius: var(--radius-sm);
  background: #fff;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
}

th,
td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  white-space: nowrap;
}

th {
  background: var(--bg-deep);
  font-family: 'Share Tech Mono', monospace;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--text);
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background: rgba(0, 82, 255, 0.02);
  color: var(--primary);
}

.material {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(320px, 2fr);
  gap: 24px;
  border-top: 1px solid var(--border);
  padding-top: 24px;
  margin-top: 24px;
}

.material:first-of-type {
  border-top: none;
  padding-top: 0;
}

.file-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.file-row:last-child {
  border-bottom: none;
}

.file-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.stat {
  position: relative;
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.stat::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--primary);
  opacity: 0;
}

.stat:hover {
  border-color: var(--text);
}

.stat:hover::before {
  opacity: 1;
}

.stat strong {
  display: block;
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  color: var(--text);
  letter-spacing: 0;
}

.stat span {
  display: block;
  margin-bottom: 8px;
  font-family: 'Share Tech Mono', monospace;
  font-size: 10px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

.filters {
  display: grid;
  grid-template-columns: repeat(6, minmax(120px, 1fr));
  gap: 12px;
  align-items: end;
}

.track-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.track-tabs a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  background: #fff;
  font-family: 'Share Tech Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.6px;
}

.track-tabs a:hover,
.track-tabs a.active {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(0, 82, 255, 0.035);
}

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

.preview-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
}

.preview-card:hover {
  border-color: var(--text);
}

.preview-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-deep);
}

.preview-head h4 {
  margin: 8px 0 2px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  word-break: break-word;
}

.preview-body {
  background:
    linear-gradient(rgba(0, 82, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 82, 255, 0.015) 1px, transparent 1px),
    #fff;
  background-size: 42px 42px;
}

.inline-preview {
  display: block;
  width: 100%;
  height: 560px;
  border: 0;
  background: #fff;
}

.model-inline-preview {
  background: #111827;
}

.image-preview {
  display: block;
  max-width: 100%;
  max-height: 640px;
  margin: 0 auto;
  object-fit: contain;
  background: #fff;
}

.video-preview {
  display: block;
  width: 100%;
  max-height: 640px;
  background: #111827;
}

.preview-placeholder {
  display: grid;
  gap: 8px;
  place-items: center;
  min-height: 180px;
  padding: 28px;
  text-align: center;
  color: var(--text-secondary);
}

.preview-placeholder strong {
  color: var(--text);
  font-size: 16px;
}

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

.score-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--text);
  border-radius: var(--radius-sm);
  margin-bottom: 18px;
}

.score-table {
  min-width: 760px;
}

.score-table th,
.score-table td {
  white-space: normal;
  vertical-align: middle;
}

.score-table th:nth-child(1),
.score-table td:nth-child(1) {
  width: 180px;
}

.score-table th:nth-child(3),
.score-table td:nth-child(3) {
  width: 90px;
  text-align: center;
}

.score-table th:nth-child(4),
.score-table td:nth-child(4) {
  width: 170px;
}

.score-content {
  color: var(--text-secondary);
  line-height: 1.8;
}

.score-input-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.score-input-wrap input {
  width: 92px;
  text-align: center;
  font-family: 'Share Tech Mono', monospace;
}

.score-input-wrap span {
  color: var(--text-muted);
  font-family: 'Share Tech Mono', monospace;
  font-size: 11px;
}

.score-summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  margin: 4px 0 18px;
  border: 1px solid var(--primary);
  border-radius: var(--radius-sm);
  background: rgba(0, 82, 255, 0.025);
}

.score-summary strong {
  color: var(--primary);
  font-size: 28px;
  line-height: 1;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin: 20px 0;
}

.preview-frame {
  width: 100%;
  height: 70vh;
  border: 1px solid var(--text);
  border-radius: var(--radius-sm);
  background: #111827;
}

#modelCanvas {
  position: relative;
  z-index: 1;
  width: 100vw;
  height: calc(100vh - 64px);
  display: block;
  background: #111827;
}

code {
  font-family: 'Share Tech Mono', monospace;
  color: var(--primary);
}

@media (max-width: 900px) {
  body::before,
  body::after {
    display: none;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 12px 16px;
  }

  .topbar strong {
    font-size: 13.5px;
    letter-spacing: 1px;
  }

  .page {
    padding: 20px 12px 40px;
  }

  .narrow {
    margin: 24px auto;
  }

  .panel {
    padding: 20px 16px;
    margin-bottom: 20px;
  }

  .grid,
  .grid.two,
  .material,
  .filters,
  .score-grid {
    grid-template-columns: 1fr;
  }

  .preview-head,
  .score-summary {
    align-items: flex-start;
    flex-direction: column;
  }

  .inline-preview {
    height: 420px;
  }

  .table-wrap {
    margin: 0 -16px;
    width: calc(100% + 32px);
    border-radius: 0;
    border-left: none;
    border-right: none;
  }

  th,
  td {
    padding: 10px 12px;
    font-size: 11.5px;
  }

  button,
  .button {
    padding: 10px 16px;
    font-size: 12px;
  }

  .file-row {
    flex-direction: column;
  }

  .file-actions {
    justify-content: flex-start;
  }

  .stat {
    padding: 16px;
  }

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