:root {
  color-scheme: light;
  --bg: #ffffff;
  --text: #111111;
  --muted: #666666;
  --soft: #f5f5f5;
  --soft-strong: #ededed;
  --accent: #111111;
  --danger: #c53030;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font:
    16px/1.6 "Noto Sans SC",
    "Microsoft YaHei",
    "PingFang SC",
    sans-serif;
}

button,
input {
  font: inherit;
}

.page-shell {
  width: min(960px, calc(100vw - 40px));
  margin: 0 auto;
  padding: 40px 0 64px;
}

.hero {
  padding-top: 8px;
}

.intro {
  margin: 0 0 10px;
  color: var(--muted);
}

.hero h1,
.section-head h2 {
  margin: 0;
  font-weight: 600;
  line-height: 1.2;
}

.hero h1 {
  max-width: 16ch;
  font-size: clamp(32px, 5vw, 48px);
}

.hero-copy,
.section-head p {
  max-width: 780px;
  margin: 14px 0 0;
  color: var(--muted);
}

.summary-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 36px;
}

.summary-item {
  min-width: 0;
}

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

.summary-item strong {
  display: block;
  margin-top: 6px;
  font-size: 18px;
  font-weight: 600;
}

.section {
  margin-top: 56px;
}

.section-head {
  margin-bottom: 20px;
}

.split {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
}

.grid-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.grid-form label,
.compact-input {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.grid-form span,
.compact-input span {
  color: var(--muted);
  font-size: 14px;
}

input {
  width: 100%;
  padding: 14px 16px;
  border: 0;
  border-radius: 10px;
  background: var(--soft);
  color: var(--text);
}

input:focus {
  outline: none;
  background: var(--soft-strong);
}

button {
  align-self: end;
  min-height: 46px;
  padding: 0 16px;
  border: 0;
  border-radius: 10px;
  background: var(--soft);
  color: var(--text);
  cursor: pointer;
  transition: background 0.16s ease;
}

button:hover {
  background: var(--soft-strong);
}

button.primary {
  background: var(--accent);
  color: #ffffff;
}

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

.actions-inline {
  display: flex;
  align-items: end;
  gap: 10px;
}

.compact-input {
  min-width: 240px;
}

.status-box {
  min-height: 24px;
  margin-top: 12px;
  color: var(--muted);
}

.file-list {
  display: grid;
  gap: 28px;
  margin-top: 28px;
}

.empty-state {
  padding: 0;
  color: var(--muted);
  text-align: left;
}

.file-item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 0;
}

.file-meta {
  min-width: 0;
}

.file-name {
  display: block;
  font-size: 18px;
}

.file-path {
  margin: 6px 0 0;
  color: var(--muted);
  word-break: break-all;
}

.file-info {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
}

.file-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

@media (max-width: 860px) {
  .page-shell {
    width: min(100vw - 24px, 960px);
    padding-top: 28px;
  }

  .summary-list,
  .grid-form {
    grid-template-columns: 1fr;
  }

  .split,
  .file-item {
    display: block;
  }

  .actions-inline,
  .file-actions {
    margin-top: 14px;
  }
}