:root {
  --bg: #fbfaf8; --panel: #ffffff; --fg: #1d1c1a; --muted: #6b6760; --line: #e6e2dc;
  --accent: #2f5bd3; --accent-soft: #e8eefc; --danger: #b42318; --ok: #157347; --radius: 8px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #151514; --panel: #1e1d1c; --fg: #ecebe8; --muted: #a29d95; --line: #34322f;
          --accent: #8aa9ff; --accent-soft: #232c45; --danger: #ff8a7a; --ok: #6fd39b; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); line-height: 1.55;
       font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.9rem; line-height: 1.2; margin: .4rem 0 .6rem; }
h2 { font-size: 1.25rem; margin: 1.8rem 0 .6rem; }
h3 { font-size: 1.05rem; margin: 0 0 .4rem; }
img { max-width: 100%; }
table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: .5rem .6rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: .85rem; color: var(--muted); font-weight: 600; }
input, select, textarea, button { font: inherit; color: inherit; }
input:not([type=checkbox]), select, textarea { width: 100%; padding: .45rem .6rem; border: 1px solid var(--line);
  border-radius: var(--radius); background: var(--panel); }
textarea { resize: vertical; }
label { display: block; font-size: .9rem; color: var(--muted); }
label > input, label > select, label > textarea { margin-top: .2rem; color: var(--fg); }

header { position: sticky; top: 0; z-index: 2; display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1.2rem;
         padding: .7rem max(16px, calc((100% - 1100px) / 2)); background: var(--bg); border-bottom: 1px solid var(--line); }
header .brand { display: flex; align-items: center; gap: .5rem; font-weight: 700; color: var(--fg); }
header .links { display: flex; gap: .2rem 1rem; flex-wrap: wrap; flex: 1; }
header .links a { color: var(--muted); font-weight: 500; }
header .links a[aria-current] { color: var(--accent); }
header .actions { display: flex; align-items: center; gap: .6rem; }
header .lang, header .plan { color: var(--muted); font-size: .9rem; }
header form { margin: 0; }
main { max-width: 1100px; margin: 0 auto; padding: 1.5rem 16px 3rem; }
footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem; padding: 1.5rem max(16px, calc((100% - 1100px) / 2));
         border-top: 1px solid var(--line); color: var(--muted); font-size: .85rem; }

.btn { display: inline-block; padding: .4rem .85rem; border: 1px solid var(--line); border-radius: var(--radius);
       background: var(--panel); color: var(--fg); cursor: pointer; white-space: nowrap; }
.btn:hover { text-decoration: none; border-color: var(--muted); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
@media (prefers-color-scheme: dark) { .btn.primary { color: #10131c; } }
.btn.small { padding: .2rem .55rem; font-size: .85rem; }
.btn.on { border-color: var(--accent); color: var(--accent); }
form.inline { display: inline; margin: 0; }
form.grow { display: flex; gap: .4rem; flex: 1; align-items: center; }
form.search { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1rem 0; align-items: center; }
form.search input { flex: 1 1 16rem; width: auto; }
form.search select { flex: 0 1 14rem; width: auto; }
form.stack { display: grid; gap: .8rem; max-width: 720px; }

.lede { color: var(--muted); font-size: 1.05rem; max-width: 46rem; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.nowrap { white-space: nowrap; }
.eyebrow { color: var(--accent); font-weight: 600; font-size: .85rem; margin: 0; }
.error { color: var(--danger); font-weight: 600; }
.ok { color: var(--ok); font-weight: 600; }
.overdue { border-color: var(--danger) !important; }
.pending { border: 1px dashed var(--line); border-radius: var(--radius); padding: .6rem .8rem; color: var(--muted); }
.note { background: var(--accent-soft); border-radius: var(--radius); padding: 1rem 1.2rem; margin: 1rem 0; }
.note h1, .note h3 { margin-top: 0; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem 1.2rem; margin: 0 0 1rem; }
.cards { list-style: none; padding: 0; display: grid; gap: 1rem; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }
.cards.two { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.cards a { display: flex; flex-direction: column; gap: .3rem; padding: 1rem; height: 100%; color: var(--fg);
           background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
.chips { display: flex; flex-wrap: wrap; gap: .4rem; list-style: none; padding: 0; align-items: center; }
.chip { display: inline-block; padding: .2rem .65rem; border: 1px solid var(--line); border-radius: 999px; color: var(--fg);
        background: var(--panel); font-size: .9rem; margin-right: .2rem; }
.chip.on { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.chip span { color: var(--muted); }
.tabs { display: flex; gap: 1.2rem; border-bottom: 1px solid var(--line); margin-bottom: 1rem; }
.tabs a { padding: .4rem 0; color: var(--muted); border-bottom: 2px solid transparent; }
.tabs a[aria-current] { color: var(--fg); border-color: var(--accent); }
.list { list-style: none; padding: 0; margin: 0; }
.list > li { padding: .55rem 0; border-bottom: 1px solid var(--line); }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem .8rem; }
.row > a { display: flex; flex-direction: column; flex: 1 1 18rem; color: var(--fg); }
.row details { flex-basis: 100%; }
.score { font-weight: 700; color: var(--accent); }
.works { padding-left: 1.2rem; }
.works li { margin: .5rem 0; }
.title { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .8rem; }
.title > div { flex: 1 1 20rem; }
.links a { margin-right: .9rem; }
.school { display: flex; align-items: center; gap: .6rem; color: var(--fg); }
.school span { display: flex; flex-direction: column; }
.logo { border-radius: 6px; object-fit: contain; background: #fff; flex: none; }
.photo { border-radius: var(--radius); object-fit: cover; }
.photo.wide { width: 100%; max-height: 320px; }
.scroll { overflow-x: auto; }
.compare th { width: 9rem; }
.check { display: inline-flex; align-items: center; gap: .35rem; color: var(--fg); }
.checks { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: .3rem; }
.grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: .5rem; margin-bottom: .6rem; }
.grid4 .span2 { grid-column: span 1; }
@media (max-width: 700px) { .grid4 { grid-template-columns: 1fr 1fr; } .grid4 .span2 { grid-column: span 2; } h1 { font-size: 1.5rem; } }
.hero { display: grid; grid-template-columns: 1.1fr 1fr; gap: 2rem; align-items: center; padding: 1rem 0 2rem; }
.hero h1 { font-size: 2.4rem; }
.hero .photo { width: 100%; aspect-ratio: 4 / 3; }
@media (max-width: 800px) { .hero { grid-template-columns: 1fr; } .hero h1 { font-size: 1.8rem; } }
.stats { display: flex; flex-wrap: wrap; gap: 2.5rem; padding: 1rem 0; }
.stats div { display: flex; flex-direction: column; }
.stats strong { font-size: 1.6rem; }
.stats span { color: var(--muted); }
.steps { display: flex; flex-wrap: wrap; gap: 1rem; padding-left: 1.2rem; }
.steps li { margin-right: 2rem; }
.band { text-align: center; padding: 2rem 1rem; margin-top: 2rem; background: var(--accent-soft); border-radius: var(--radius); }
.auth { max-width: 380px; margin: 1rem auto; }
.auth form { display: grid; gap: .8rem; }
main > section { margin-top: 2rem; }
@media (max-width: 700px) {
  header { position: static; }
  header .links { order: 3; flex-basis: 100%; flex-wrap: nowrap; overflow-x: auto; white-space: nowrap; }
  header .actions { margin-left: auto; }
}
td input:not([type=checkbox]), td select { min-width: 8.5rem; }