:root {
  --bg: #0f1117;
  --panel: #171a23;
  --panel2: #1e222d;
  --line: #2a2f3c;
  --txt: #e8ebf2;
  --dim: #9aa3b5;
  --brand: #6c8cff;
  --brand2: #8b5cf6;
  --ok: #34d399;
  --warn: #fbbf24;
  --bad: #f87171;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: radial-gradient(1200px 600px at 20% -10%, #1b2340 0%, var(--bg) 55%) fixed;
  color: var(--txt);
  font: 15px/1.6 -apple-system, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  min-height: 100vh;
}
h1, h2, h3 { margin: 0 0 12px; font-weight: 600; }
h2 { font-size: 20px; }
h3 { font-size: 16px; }
a { cursor: pointer; }
button { font: inherit; cursor: pointer; }
input {
  font: inherit; color: var(--txt); background: #10131b;
  border: 1px solid var(--line); border-radius: 8px; padding: 9px 12px; width: 100%;
}
input:focus { outline: none; border-color: var(--brand); }
label { display: block; font-size: 13px; color: var(--dim); margin-bottom: 12px; }
label input { margin-top: 6px; }

/* ---------- 登录 ---------- */
.auth-wrap {
  min-height: 100vh; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  /* 底部不留 padding，页脚才能贴住视口底边（页脚自带内边距） */
  padding: 24px 24px 0;
}
.auth-card {
  width: 100%; max-width: 400px; background: var(--panel); border: 1px solid var(--line);
  border-radius: 16px; padding: 32px; box-shadow: 0 20px 60px rgba(0,0,0,.45);
  /* 上下 auto：卡片在剩余空间里居中，同时把页脚顶到页面最底部 */
  margin-top: auto; margin-bottom: auto;
}
.logo { font-size: 24px; background: linear-gradient(90deg, var(--brand), var(--brand2));
  -webkit-background-clip: text; background-clip: text; color: transparent; }
.sub { color: var(--dim); font-size: 13px; margin: -6px 0 20px; }
.tabs { display: flex; gap: 6px; background: #10131b; border-radius: 10px; padding: 4px; margin-bottom: 20px; }
.tabs button { flex: 1; background: none; border: 0; color: var(--dim); padding: 8px; border-radius: 8px; }
.tabs button.on { background: var(--panel2); color: var(--txt); }
.tip { color: var(--dim); font-size: 12px; text-align: center; margin: 16px 0 0; }

.primary {
  width: 100%; border: 0; border-radius: 10px; padding: 11px; color: #fff; font-weight: 600;
  background: linear-gradient(90deg, var(--brand), var(--brand2));
}
.primary:disabled { opacity: .5; cursor: not-allowed; }
.ghost {
  background: none; border: 1px solid var(--line); color: var(--dim);
  border-radius: 8px; padding: 5px 12px; font-size: 13px;
}
.ghost:hover { color: var(--txt); border-color: var(--brand); }

/* ---------- 布局 ---------- */
.topbar {
  display: flex; align-items: center; gap: 24px; padding: 14px 28px;
  border-bottom: 1px solid var(--line); background: rgba(15,17,23,.85);
  backdrop-filter: blur(8px); position: sticky; top: 0; z-index: 10;
}
.brand { font-weight: 700; background: linear-gradient(90deg, var(--brand), var(--brand2));
  -webkit-background-clip: text; background-clip: text; color: transparent; cursor: pointer; }
.topbar nav { display: flex; gap: 4px; flex: 1; }
.topbar nav a { padding: 6px 14px; border-radius: 8px; color: var(--dim); font-size: 14px; }
.topbar nav a:hover { color: var(--txt); background: var(--panel2); }
.topbar nav a.on { color: var(--txt); background: var(--panel2); }
.quota { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--dim); }
.app-wrap { min-height: 100vh; display: flex; flex-direction: column; }
main { flex: 1 0 auto; width: 100%; max-width: 980px; margin: 0 auto; padding: 32px 24px 24px; }

.badge { padding: 2px 10px; border-radius: 20px; font-size: 12px; background: var(--panel2);
  border: 1px solid var(--line); color: var(--dim); }
.badge.done { color: var(--ok); border-color: rgba(52,211,153,.4); }
.badge.running, .badge.pending { color: var(--warn); border-color: rgba(251,191,36,.4); }
.badge.failed { color: var(--bad); border-color: rgba(248,113,113,.4); }

.panel {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px;
  padding: 22px; margin-bottom: 18px;
}
.hint { color: var(--dim); font-size: 12.5px; }
.err { color: var(--bad); font-size: 13px; margin: 10px 0 0; }
.warn { color: var(--warn); font-size: 13px; }

/* ---------- 首页 ---------- */
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 18px 0; }
@media (max-width: 760px) { .cards { grid-template-columns: 1fr; } }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 24px;
  cursor: pointer; transition: .18s; height: 100%;
}
.card:hover { transform: translateY(-3px); border-color: var(--brand); box-shadow: 0 12px 30px rgba(108,140,255,.14); }
.card .ic { font-size: 28px; }
.card h3 { margin: 10px 0 8px; }
.card p { color: var(--dim); font-size: 13.5px; }
.card .go { color: var(--brand); font-size: 13.5px; }
.note { color: var(--dim); font-size: 12.5px; background: #131722; border: 1px dashed var(--line);
  border-radius: 10px; padding: 14px 16px; }

/* ---------- 上传 ---------- */
.drop {
  display: block; border: 1.5px dashed var(--line); border-radius: 12px; padding: 40px 20px;
  text-align: center; cursor: pointer; transition: .18s; margin-bottom: 18px;
}
.drop:hover, .drop.drag { border-color: var(--brand); background: rgba(108,140,255,.06); }
.drop .ic.big { font-size: 30px; }
.drop p { margin: 8px 0 0; }
.drop .fname { font-weight: 600; word-break: break-all; }
.row { display: block; }
.row input { margin-top: 6px; }
.progress-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.bar { height: 8px; background: #10131b; border-radius: 6px; overflow: hidden; }
.fill { height: 100%; background: linear-gradient(90deg, var(--brand), var(--brand2)); transition: width .4s; }
.stage { font-size: 13px; color: var(--dim); margin: 10px 0 0; }

/* ---------- 结果 ---------- */
.score-panel { display: flex; gap: 28px; align-items: center; }
@media (max-width: 620px) { .score-panel { flex-direction: column; text-align: center; } }
.score-ring {
  width: 140px; height: 140px; border-radius: 50%; flex: none;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  border: 6px solid var(--line);
}
.score-ring .num { font-size: 34px; font-weight: 700; line-height: 1.1; }
.score-ring .lab { font-size: 13px; color: var(--dim); }
.score-ring.high { border-color: var(--ok); box-shadow: 0 0 30px rgba(52,211,153,.2); }
.score-ring.mid { border-color: var(--warn); box-shadow: 0 0 30px rgba(251,191,36,.18); }
.score-ring.low { border-color: var(--bad); box-shadow: 0 0 30px rgba(248,113,113,.16); }
.score-side h3 { margin-bottom: 6px; word-break: break-all; }
.score-mini { font-size: 13px; }
.score-mini.high { color: var(--ok); }
.score-mini.mid { color: var(--warn); }
.score-mini.low { color: var(--bad); }

.tbl { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.tbl th { text-align: left; color: var(--dim); font-weight: 500; font-size: 12.5px; padding: 8px 10px;
  border-bottom: 1px solid var(--line); }
.tbl td { padding: 10px; border-bottom: 1px solid rgba(42,47,60,.5); vertical-align: middle; }
.tbl tr:last-child td { border-bottom: 0; }
.contrib-cell { display: flex; align-items: center; gap: 10px; }
.contrib-cell b { font-weight: 600; font-size: 13px; min-width: 46px; }
.contrib { width: 120px; height: 6px; background: #10131b; border-radius: 4px; overflow: hidden; flex: none; }
.contrib span { display: block; height: 100%; }
.contrib .pos { background: var(--ok); }
.contrib .neg { background: var(--bad); }
.up { color: var(--ok); }
.down { color: var(--bad); }
.empty { text-align: center; color: var(--dim); padding: 24px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

.block { margin-bottom: 18px; }
.block-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
pre {
  background: #10131b; border: 1px solid var(--line); border-radius: 10px; padding: 14px;
  white-space: pre-wrap; word-break: break-word; font-size: 13px; margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; max-height: 720px; overflow: auto;
  scrollbar-gutter: stable;
}
.perception { margin-top: 14px; max-height: 520px; }

.kpis { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
@media (max-width: 760px) { .kpis { grid-template-columns: repeat(3, 1fr); } }
.kpis > div { background: var(--panel2); border-radius: 10px; padding: 14px; text-align: center; }
.kpis b { display: block; font-size: 22px; }
.kpis span { font-size: 12px; color: var(--dim); }

.toast {
  position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%);
  background: var(--panel2); border: 1px solid var(--brand); color: var(--txt);
  padding: 10px 20px; border-radius: 10px; font-size: 13.5px; box-shadow: 0 10px 30px rgba(0,0,0,.5);
}

/* ---------- 局部调整（自然语言改模块）---------- */
.refine-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin: 14px 0 12px; }
.refine-tabs button {
  background: none; border: 1px solid var(--line); color: var(--dim);
  padding: 6px 16px; border-radius: 9px; font-size: 13.5px; transition: .15s;
}
.refine-tabs button:hover:not(:disabled) { border-color: var(--brand); color: var(--txt); }
.refine-tabs button.on {
  background: linear-gradient(90deg, var(--brand), var(--brand2));
  border-color: transparent; color: #fff; font-weight: 600;
}
.refine-tabs button:disabled { opacity: .5; cursor: not-allowed; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.chip {
  background: #10131b; border: 1px dashed var(--line); color: var(--dim);
  padding: 5px 12px; border-radius: 20px; font-size: 12.5px;
}
.chip:hover:not(:disabled) { border-style: solid; border-color: var(--brand); color: var(--txt); }
.chip:disabled { opacity: .5; cursor: not-allowed; }

textarea {
  width: 100%; font: inherit; color: var(--txt); background: #10131b;
  border: 1px solid var(--line); border-radius: 10px; padding: 12px; resize: vertical;
}
textarea:focus { outline: none; border-color: var(--brand); }
textarea:disabled { opacity: .6; }

.refine-actions { display: flex; gap: 12px; margin-top: 12px; }
.refine-actions .primary { width: auto; flex: 1; }
.refine-actions .ghost { flex: none; padding: 11px 18px; }

.refine-log { margin-top: 20px; border-top: 1px solid var(--line); padding-top: 14px; }
.log-title { font-size: 12.5px; color: var(--dim); margin-bottom: 10px; }
.log-item { display: flex; gap: 12px; align-items: flex-start; padding: 9px 0;
  border-bottom: 1px solid rgba(42,47,60,.5); }
.log-item:last-child { border-bottom: 0; }
.log-mod { flex: none; font-size: 12px; padding: 2px 10px; border-radius: 6px;
  background: var(--panel2); color: var(--brand); border: 1px solid var(--line); }
.log-mod.revert { color: var(--warn); }
.log-mod.all { color: var(--ok); }
.log-body { flex: 1; min-width: 0; }
.log-fb { font-size: 13.5px; }
.log-note { font-size: 12.5px; color: var(--dim); margin-top: 3px; }
.log-note.warn { color: var(--warn); }
.log-at { flex: none; font-size: 12px; color: var(--dim); }

/* ---------- 改进建议 ---------- */
.advice-summary {
  background: #10131b; border-left: 3px solid var(--brand); border-radius: 6px;
  padding: 12px 14px; font-size: 13.5px; margin: 0 0 16px;
}
.advice-item {
  border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; margin-bottom: 12px;
  background: var(--panel2);
}
.advice-item.good { border-color: rgba(52,211,153,.35); }
.advice-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.advice-head b { font-size: 15px; }
.advice-head .pts { font-size: 13px; font-weight: 600; }
.advice-head .pts.bad { color: var(--bad); }
.conf { font-size: 11.5px; padding: 1px 8px; border-radius: 20px; border: 1px solid var(--line); color: var(--dim); }
.conf.high { color: var(--ok); border-color: rgba(52,211,153,.4); }
.conf.medium { color: var(--warn); border-color: rgba(251,191,36,.35); }
.conf.low { color: var(--dim); }
.advice-what { font-size: 13px; color: var(--dim); margin: 0 0 6px; }
.advice-why { font-size: 13.5px; margin: 0 0 8px; }
.advice-actions { margin: 0; padding-left: 20px; }
.advice-actions li { font-size: 13.5px; margin-bottom: 5px; }

/* ---------- ICP 备案信息（工信部要求展示）---------- */
/* 备案信息：统一贴在页面最底部（内容短时贴视口底，内容长时在文末） */
.beian, .beian-standalone {
  flex: none; width: 100%; text-align: center; font-size: 12.5px; color: var(--dim);
  padding: 20px 16px 24px;
}
.beian a, .beian-standalone a { color: var(--dim); text-decoration: none; }
.beian a:hover, .beian-standalone a:hover { color: var(--txt); text-decoration: underline; }