:root {
  --ink: #14233a;
  --muted: #637386;
  --line: #d6e0ea;
  --panel: #ffffff;
  --bg: #f3f6fa;
  --brand: #0c5f95;
  --brand-dark: #073b64;
  --accent: #a84724;
  --soft: #e8f1f8;
  --ok: #def1e8;
  --warn: #fff3d8;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background: linear-gradient(180deg, rgba(12,95,149,.08), transparent 280px), var(--bg);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.55;
}
a { color: inherit; text-decoration: none; }
.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 84px;
  padding: 12px 36px;
  color: white;
  background: linear-gradient(90deg, #083b66, #0c5f95 56%, #137b83);
  border-bottom: 4px solid #d6a25a;
  box-shadow: 0 8px 18px rgba(8,43,74,.14);
}
.brand { display: grid; gap: 2px; font-weight: 800; letter-spacing: 0; }
.brand strong { font-size: 20px; }
.brand span { font-size: 12px; font-weight: 500; opacity: .84; text-transform: uppercase; }
nav { display: flex; gap: 8px; flex-wrap: wrap; }
nav a { padding: 8px 12px; border-radius: 6px; color: rgba(255,255,255,.86); }
nav a[aria-current="page"], nav a:hover { color: #fff; background: rgba(255,255,255,.16); }

.page { width: min(1180px, calc(100% - 32px)); margin: 28px auto 48px; }
.page.narrow { width: min(900px, calc(100% - 32px)); }
.hero { min-height: 188px; padding: 34px 0 24px; }
.hero h1, .lab-hero h1 { margin: 0; font-size: clamp(32px, 5vw, 56px); line-height: 1.1; letter-spacing: 0; }
.hero.compact h1 { font-size: clamp(28px, 4vw, 44px); }
.hero p, .lab-hero p { max-width: 760px; color: var(--muted); font-size: 17px; }
.eyebrow { margin: 0 0 10px; color: var(--accent) !important; font-weight: 700; }
.lab-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 34px;
  align-items: center;
  min-height: 300px;
  padding: 34px 0 24px;
}
.hero-visual {
  position: relative;
  min-height: 210px;
  overflow: hidden;
  border-radius: 8px;
  background:
    radial-gradient(circle at 24% 30%, rgba(255,255,255,.92) 0 3px, transparent 4px),
    radial-gradient(circle at 58% 56%, rgba(255,255,255,.88) 0 2px, transparent 3px),
    linear-gradient(135deg, #083b66, #0c5f95 50%, #16867f);
  box-shadow: 0 18px 34px rgba(8,43,74,.2);
}
.hero-visual::before, .hero-visual::after {
  content: "";
  position: absolute;
  inset: auto -18px 42px -18px;
  height: 2px;
  background: rgba(255,255,255,.62);
  transform: rotate(-12deg);
}
.hero-visual::after { inset: 82px -28px auto -28px; transform: rotate(18deg); }
.hero-visual span {
  position: absolute;
  width: 56px;
  height: 56px;
  border: 2px solid rgba(255,255,255,.75);
  border-radius: 50%;
}
.hero-visual span:nth-child(1) { left: 44px; top: 42px; }
.hero-visual span:nth-child(2) { right: 58px; top: 84px; }
.hero-visual span:nth-child(3) { left: 132px; bottom: 34px; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  box-shadow: 0 8px 22px rgba(20,36,50,.05);
}
.hidden { display: none !important; }
.login { max-width: 560px; margin: 80px auto; }
.muted { color: var(--muted); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.form-grid.single { grid-template-columns: 1fr; }
.wide { grid-column: 1 / -1; }
label { display: grid; gap: 7px; font-weight: 700; }
input, select, textarea {
  width: 100%;
  border: 1px solid #cbd6df;
  border-radius: 6px;
  padding: 10px 12px;
  font: inherit;
  color: var(--ink);
  background: #fff;
}
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 3px solid rgba(12,95,149,.16); border-color: var(--brand); }
button {
  border: 1px solid #bfd0d8;
  border-radius: 6px;
  padding: 10px 14px;
  color: var(--ink);
  background: #fff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
button:hover { border-color: var(--brand); color: var(--brand-dark); }
button.primary { border-color: var(--brand); color: white; background: var(--brand); }
button.danger { border-color: #d88f80; color: #9d2c1c; }
.actions, .inline-form, .link-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.link-row a {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 9px 12px;
  background: #fff;
  color: var(--brand-dark);
  font-weight: 700;
}

.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-bottom: 18px; }
.stat, .summary-item {
  padding: 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.stat strong, .summary-item strong { display: block; font-size: 30px; line-height: 1; color: var(--brand-dark); }
.stat span, .summary-item span { color: var(--muted); }
.toolbar {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) 180px 160px repeat(3, auto);
  gap: 12px;
  align-items: center;
  margin-bottom: 18px;
}
.publication-toolbar { grid-template-columns: minmax(260px, 1fr) 150px 150px; }
.section-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 14px; }
.section-head h2 { margin: 0; font-size: 22px; }
.grid-two { display: grid; grid-template-columns: minmax(0, .88fr) minmax(420px, 1.12fr); gap: 18px; margin-top: 18px; }

.progress-list, .paper-list, .paper-editor { display: grid; gap: 14px; }
.progress-card, .paper-card, .paper-edit-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}
.progress-card h3, .paper-card h2 { margin: 0 0 8px; }
.meta { color: var(--muted); }
.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 62px;
  padding: 4px 8px;
  border-radius: 999px;
  font-weight: 800;
  background: var(--soft);
  color: var(--brand-dark);
}
.pill.warn { background: var(--warn); color: #8b5a00; }
.pill.ok { background: var(--ok); color: #11643d; }
.card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 12px; }
.note-block { padding: 12px; border: 1px solid var(--line); border-radius: 6px; background: #f8fafc; }
.note-block h4 { margin: 0 0 6px; font-size: 14px; color: var(--muted); }
.review-row { display: grid; grid-template-columns: 160px minmax(0, 1fr) auto; gap: 10px; align-items: start; margin-top: 14px; }
.paper-card .paper-title { font-weight: 800; color: var(--ink); }
.paper-card dl { display: grid; grid-template-columns: 88px minmax(0, 1fr); gap: 6px 12px; margin: 12px 0 0; }
.paper-card dt { color: var(--muted); }
.paper-card dd { margin: 0; }
.empty-state {
  padding: 28px;
  background: #fff;
  border: 1px dashed #aab8c5;
  border-radius: 8px;
  color: var(--muted);
}

@media (max-width: 860px) {
  .topbar { align-items: flex-start; flex-direction: column; padding: 14px 16px; }
  .form-grid, .stats, .toolbar, .publication-toolbar, .grid-two, .lab-hero, .card-grid, .review-row { grid-template-columns: 1fr; }
  .inline-form { flex-direction: column; align-items: stretch; }
}