* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #f5f7fa; color: #303133;
}
.app-shell { min-height: 100vh; }
.topbar {
  background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
  color: #fff; height: 60px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  position: sticky; top: 0; z-index: 100;
}
.topbar-inner {
  max-width: 1280px; margin: 0 auto; height: 100%;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px;
}
.brand { display: flex; align-items: center; gap: 10px; cursor: pointer; font-weight: 600; font-size: 17px; }
.brand-logo {
  width: 34px; height: 34px; background: rgba(255,255,255,0.22);
  border-radius: 9px; display: flex; align-items: center; justify-content: center;
  font-weight: 700; letter-spacing: 0.5px;
}
.topbar-right { display: flex; align-items: center; gap: 12px; }
.topbar-right .user { opacity: 0.9; font-size: 14px; }
.topbar-right .el-button { color: #fff !important; }
main { max-width: 1280px; margin: 0 auto; padding: 24px; }
@media (max-width: 768px) { main { padding: 12px; } .topbar-inner { padding: 0 12px; } }
.boot { display: flex; align-items: center; justify-content: center; height: 60vh; }
.page { display: flex; flex-direction: column; gap: 20px; }
.login-wrap {
  display: flex; align-items: center; justify-content: center;
  min-height: calc(100vh - 60px); padding: 20px;
  background: radial-gradient(circle at 20% 20%, #eaf3ff 0%, transparent 50%),
              radial-gradient(circle at 80% 80%, #ffeaea 0%, transparent 50%);
}
.login-card { width: 100%; max-width: 420px; border-radius: 16px; box-shadow: 0 20px 50px rgba(30,60,114,0.15); border: none; }
.login-title { text-align: center; margin-bottom: 26px; }
.login-title h2 { margin: 0 0 8px; color: #1e3c72; letter-spacing: 1px; }
.login-title p { margin: 0; color: #909399; font-size: 13px; }
.login-tip { text-align: center; color: #c0c4cc; font-size: 12px; margin-top: 18px; }
.upload-card, .list-card { border-radius: 14px; border: none; box-shadow: 0 2px 14px rgba(0,0,0,0.05); }
.card-head { display: flex; align-items: center; justify-content: space-between; }
.card-title { font-size: 16px; font-weight: 600; }
.card-sub { font-size: 13px; color: #909399; }
.upload-status { margin-top: 8px; color: #909399; font-size: 13px; text-align: center; }
.chain { margin-bottom: 20px; padding-bottom: 20px; border-bottom: 1px dashed #ebeef5; }
.chain-title { font-size: 12px; color: #909399; margin-bottom: 10px; letter-spacing: 1px; }
.chain-items { display: flex; gap: 12px; flex-wrap: wrap; }
.chain-item { border: 2px solid #ebeef5; border-radius: 10px; padding: 10px 16px; min-width: 150px; cursor: pointer; transition: all 0.2s; background: #fff; }
.chain-item:hover { border-color: #c6e2ff; transform: translateY(-1px); }
.chain-item.active { border-color: #409eff; background: #ecf5ff; }
.chain-v { font-size: 11px; color: #909399; }
.chain-name { font-weight: 600; font-size: 13px; margin: 4px 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 170px; }
.chain-prob { font-weight: 700; font-size: 14px; }
.summary { display: flex; justify-content: space-between; align-items: start; margin-bottom: 4px; }
.summary h2 { margin: 0 0 10px; font-size: 20px; display: flex; align-items: center; gap: 8px; }
.meta { display: flex; gap: 16px; color: #909399; font-size: 13px; align-items: center; flex-wrap: wrap; }
.prob-card {
  display: flex; gap: 40px; align-items: center;
  background: linear-gradient(135deg, #f0f9ff 0%, #e8f3ff 100%);
  border-radius: 16px; padding: 28px 36px; margin-top: 20px;
}
.prob-left { text-align: center; flex-shrink: 0; }
.prob-text { margin-top: 14px; font-weight: 600; font-size: 15px; }
.prob-right { flex: 1; min-width: 0; }
.prob-right p { margin: 8px 0; line-height: 1.7; font-size: 14px; }
.overview { color: #606266; font-size: 13px; }
.processing { text-align: center; padding: 60px 20px; }
.processing p { color: #909399; margin-top: 16px; font-size: 14px; }
.failed { padding: 20px 0; }
.section { margin-top: 26px; }
.section-title { font-size: 15px; font-weight: 600; margin-bottom: 12px; padding-left: 10px; border-left: 4px solid #409eff; }
.actions { margin-top: 28px; display: flex; gap: 12px; flex-wrap: wrap; }
.vf-input-card { margin-bottom: 20px; }
.vf-url-row { display: flex; gap: 12px; }
.vf-result-block {
  background: #fafbfc; border-radius: 10px; padding: 16px 20px;
  margin-bottom: 12px; white-space: pre-wrap; word-break: break-word;
  font-size: 13px; line-height: 1.7; border-left: 3px solid #409eff;
}
.vf-result-label { font-size: 13px; font-weight: 600; color: #409eff; margin-bottom: 8px; letter-spacing: 0.5px; }
.vf-shot-item { border: 1px solid #ebeef5; border-radius: 10px; padding: 14px 18px; margin-bottom: 10px; background: #fff; }
.vf-shot-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; padding-bottom: 8px; border-bottom: 1px dashed #ebeef5; }
.vf-shot-num { background: #409eff; color: #fff; border-radius: 6px; padding: 2px 10px; font-size: 12px; font-weight: 600; }
.vf-shot-body { font-size: 13px; line-height: 1.8; color: #606266; }
@media (max-width: 768px) {
  .prob-card { flex-direction: column; padding: 24px 20px; gap: 20px; text-align: center; }
  .summary h2 { font-size: 17px; }
  .vf-url-row { flex-direction: column; }
}
/* ============ Markdown 渲染样式 ============ */
.markdown-body {
  font-size: 14px;
  line-height: 1.8;
  color: #303133;
  word-break: break-word;
  background: #fafbfc;
  padding: 20px 24px;
  border-radius: 10px;
  border-left: 4px solid #409eff;
}
.markdown-body h1 { font-size: 20px; margin: 16px 0 12px; padding-bottom: 8px; border-bottom: 1px solid #ebeef5; }
.markdown-body h2 { font-size: 17px; margin: 16px 0 10px; padding-bottom: 6px; border-bottom: 1px dashed #ebeef5; color: #1e3c72; }
.markdown-body h3 { font-size: 15px; margin: 14px 0 8px; color: #409eff; }
.markdown-body h4 { font-size: 14px; margin: 12px 0 6px; color: #606266; }
.markdown-body p { margin: 8px 0; }
.markdown-body ul, .markdown-body ol { padding-left: 22px; margin: 8px 0; }
.markdown-body li { margin: 4px 0; }
.markdown-body strong { color: #f56c6c; }
.markdown-body code {
  background: #f5f7fa; padding: 2px 6px; border-radius: 4px;
  font-family: Consolas, Monaco, monospace; font-size: 13px; color: #e6a23c;
}
.markdown-body pre {
  background: #2d2d2d; color: #f8f8f2; padding: 14px 16px;
  border-radius: 8px; overflow-x: auto; font-size: 13px; line-height: 1.6;
}
.markdown-body pre code { background: transparent; color: inherit; padding: 0; }
.markdown-body blockquote {
  border-left: 3px solid #e6a23c; background: #fdf6ec;
  padding: 8px 14px; margin: 10px 0; color: #909399;
}
.markdown-body hr { border: none; border-top: 1px dashed #ebeef5; margin: 16px 0; }