* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.7 -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif; color: #1f2933; background: #f5f7fa; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
a { color: #1a56db; }
code { background: #eef2f7; padding: 1px 5px; border-radius: 4px; font-size: 13px; }
.muted { color: #616e7c; font-size: 13px; }
.hero { background: linear-gradient(135deg, #0b1f3a, #12305a); color: #fff; padding: 36px 0 32px; }
.hero h1 { font-size: 32px; margin: 12px 0 8px; }
.hero p { color: #c7d2fe; max-width: 760px; }
.pill { display: inline-block; border: 1px solid #f59e0b; color: #f59e0b; border-radius: 14px; padding: 2px 12px; font-size: 13px; }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; margin: 20px 0; }
.facts div { background: rgba(255, 255, 255, .08); border-left: 3px solid #f59e0b; padding: 8px 12px; border-radius: 4px; }
.facts strong { display: block; }
.facts span { font-size: 12px; color: #c7d2fe; }
.cta { display: inline-block; background: #f59e0b; color: #0b1f3a; font-weight: 700; padding: 10px 22px; border-radius: 6px; text-decoration: none; }
.toc { display: flex; flex-wrap: wrap; gap: 6px 18px; padding-top: 14px; padding-bottom: 14px; position: sticky; top: 0; background: #f5f7fa; border-bottom: 1px solid #e4e7eb; z-index: 1; }
.toc a { text-decoration: none; font-weight: 600; }
section { padding: 22px 0 8px; scroll-margin-top: 60px; }
h2 { font-size: 22px; border-left: 4px solid #1a56db; padding-left: 10px; margin: 8px 0 12px; }
h3 { font-size: 16px; margin: 16px 0 6px; }
.tag { background: #def7ec; color: #03543f; font-size: 12px; padding: 1px 8px; border-radius: 10px; vertical-align: middle; }
.card { background: #fff; border: 1px solid #e4e7eb; border-radius: 8px; padding: 12px 18px; }
.steps li { margin: 6px 0; }
.code { position: relative; background: #0b1f3a; border-radius: 6px; margin: 8px 0; }
.code pre { margin: 0; padding: 12px 14px; color: #e5e7eb; font: 13px/1.6 ui-monospace, Menlo, Consolas, monospace; overflow-x: auto; white-space: pre; }
.copy { position: absolute; top: 6px; right: 6px; border: 1px solid #4b5563; background: #1f2937; color: #e5e7eb; border-radius: 4px; font-size: 12px; padding: 2px 8px; cursor: pointer; }
.chat { background: #fff; border: 1px solid #e4e7eb; border-radius: 8px; padding: 8px 14px; }
.chat p { margin: 4px 0; }
.chat b { display: inline-block; min-width: 44px; color: #1a56db; }
details { margin: 10px 0; }
summary { cursor: pointer; color: #1a56db; font-weight: 600; }
.week h3 { margin-top: 12px; }
.grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.course { background: #fff; border: 1px solid #e4e7eb; border-top: 3px solid #1a56db; border-radius: 6px; padding: 8px 10px; font-size: 13px; }
.course.lab { background: #eef4fd; }
.course.final { border-top-color: #ff8a4c; background: #fff8f1; }
.course.today { box-shadow: 0 0 0 2px #1a56db66; }
.course .d { color: #1a56db; font-weight: 700; }
.course .t { font-weight: 700; margin: 2px 0; }
.course .x, .course .m { color: #616e7c; font-size: 12px; }
.legend { font-size: 12px; color: #616e7c; display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: center; }
.sw { display: inline-block; width: 14px; height: 10px; border: 1px solid #1a56db; margin-right: 4px; }
.sw.lab { background: #eef4fd; }
.sw.final { border-color: #ff8a4c; background: #fff8f1; }
table.dl { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid #e4e7eb; }
table.dl th, table.dl td { text-align: left; padding: 8px 12px; border-bottom: 1px solid #eef0f2; }
table.dl th { background: #f9fafb; }
.faq dt { font-weight: 700; margin-top: 10px; }
.faq dd { margin: 2px 0 0 0; color: #3e4c59; }
footer { padding: 30px 20px 40px; }
@media (max-width: 760px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { font-size: 26px; }
}

table.params th { width: 230px; white-space: nowrap; }
table.params td code { word-break: break-all; }
table.params td:last-child { width: 70px; }
.copy-val { border: 1px solid #cbd2d9; background: #fff; border-radius: 4px; font-size: 12px; padding: 2px 8px; cursor: pointer; }
select#q-region { margin-right: 6px; padding: 2px 4px; }

.cta.ghost { background: transparent; color: #f59e0b; border: 1px solid #f59e0b; margin-left: 10px; }