:root {
  --brand: #e8753a;
  --brand-dark: #c25016;
  --brand-deep: #8f3a0d;
  --brand-soft: #fdf2ec;
  --brand-tint: #fef8f4;

  --ink: #1c1815;
  --ink-2: #554d47;
  --ink-3: #8b827b;
  --ink-4: #b3aaa3;

  --line: #eee8e3;
  --line-2: #e0d8d1;
  --bg: #fffefc;
  --paper: #fff;

  --shadow-sm: 0 1px 2px rgba(28, 24, 21, .04);
  --shadow: 0 1px 2px rgba(28, 24, 21, .04), 0 10px 28px -16px rgba(28, 24, 21, .14);
  --shadow-lg: 0 2px 4px rgba(28, 24, 21, .04), 0 20px 48px -20px rgba(28, 24, 21, .2);

  --r-sm: 10px;
  --r: 16px;
  --r-lg: 22px;

  --wrap: 1120px;
  --prose: 44em;
}

* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--brand-dark); text-decoration: none; }
a:hover { color: var(--brand-deep); text-decoration: underline; text-underline-offset: 3px; }

strong { font-weight: 650; color: var(--ink); }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

/* ---------- header ---------- */
.site-head {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 254, 252, .82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.site-head .wrap {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 66px;
  flex-wrap: wrap;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; color: var(--ink); font-size: 17.5px;
  letter-spacing: -.01em;
}
.logo:hover { text-decoration: none; color: var(--ink); }
.logo-mark {
  width: 32px; height: 32px; border-radius: 9px;
  background: linear-gradient(145deg, var(--brand) 0%, var(--brand-deep) 100%);
  box-shadow: 0 2px 8px -2px rgba(143, 58, 13, .5);
  color: #fff; font-size: 17px; line-height: 32px; text-align: center; font-weight: 700;
}
.nav {
  display: flex; gap: 4px; font-size: 15px;
  margin-left: auto; flex-wrap: wrap;
}
.nav a {
  color: var(--ink-2);
  padding: 5px 11px;
  border-radius: 8px;
  transition: background .16s, color .16s;
}
.nav a:hover { background: var(--brand-soft); color: var(--brand-deep); text-decoration: none; }
.nav a[aria-current="page"] { color: var(--brand-deep); font-weight: 650; background: var(--brand-soft); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 78px 0 68px;
  background:
    radial-gradient(760px 420px at 8% -12%, #fde4d5 0%, rgba(253, 228, 213, 0) 62%),
    radial-gradient(620px 380px at 88% 4%, #fdeee2 0%, rgba(253, 238, 226, 0) 66%),
    linear-gradient(180deg, var(--brand-tint) 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--line);
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(143, 58, 13, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(143, 58, 13, .045) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(660px 340px at 78% 22%, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(660px 340px at 78% 22%, #000 0%, transparent 72%);
  pointer-events: none;
}
.hero .wrap { position: relative; z-index: 1; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 13.5px; font-weight: 650; letter-spacing: .02em;
  color: var(--brand-deep);
  background: rgba(255, 255, 255, .78);
  border: 1px solid #f4d8c6;
  border-radius: 999px;
  padding: 5px 14px;
  margin: 0 0 22px;
  box-shadow: var(--shadow-sm);
}
.eyebrow::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--brand); box-shadow: 0 0 0 3px rgba(232, 117, 58, .22);
}

.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(31px, 5vw, 52px);
  line-height: 1.18;
  letter-spacing: -.025em;
  font-weight: 800;
  max-width: 20em;
}
.hero .slogan {
  margin: 0 0 20px;
  font-size: clamp(18px, 2.3vw, 23px);
  font-weight: 650;
  color: var(--brand-deep);
  letter-spacing: -.01em;
}
.hero p {
  margin: 0 0 14px;
  font-size: clamp(16.5px, 1.7vw, 18.5px);
  color: var(--ink-2);
  max-width: 38em;
  line-height: 1.72;
}
.hero .note { max-width: 44em; }

/* ---------- stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(168px, 1fr));
  gap: 14px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}
.stats li {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 20px 20px 18px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.stats li::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--brand), var(--brand-deep));
  opacity: .9;
}
.stats .num {
  display: block;
  font-size: clamp(28px, 3.4vw, 38px);
  font-weight: 800;
  color: var(--ink);
  line-height: 1.1;
  letter-spacing: -.03em;
  font-variant-numeric: tabular-nums;
}
.stats .lab {
  display: block;
  font-size: 13.5px;
  color: var(--ink-3);
  line-height: 1.5;
  margin-top: 7px;
}

/* ---------- sections ---------- */
main { padding: 76px 0 24px; }
section { margin: 0 0 84px; }
section > p, section > ul:not(.tags):not(.stats), section > ol:not(.steps) { max-width: var(--prose); }
.prose { max-width: var(--prose); }

h2 {
  font-size: clamp(22px, 2.9vw, 31px);
  margin: 0 0 14px;
  line-height: 1.32;
  letter-spacing: -.024em;
  font-weight: 750;
}
h3 {
  font-size: clamp(17px, 1.9vw, 19.5px);
  margin: 34px 0 8px;
  line-height: 1.45;
  letter-spacing: -.015em;
  font-weight: 700;
}
.lede {
  color: var(--ink-2);
  margin: 0 0 22px;
  font-size: 17px;
  max-width: var(--prose);
}
.note { font-size: 14px; color: var(--ink-3); margin: 12px 0 0; line-height: 1.65; }

/* ---------- cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(252px, 1fr));
  gap: 18px;
  margin-top: 26px;
}
.card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 24px 24px 22px;
  background: var(--paper);
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: var(--line-2);
}
.card h3 {
  margin: 0 0 9px;
  font-size: 17.5px;
  padding-left: 15px;
  position: relative;
  letter-spacing: -.015em;
}
.card h3::before {
  content: ""; position: absolute; left: 0; top: .48em;
  width: 7px; height: 7px; border-radius: 2px;
  background: var(--brand);
}
.card p { margin: 0; color: var(--ink-2); font-size: 15.5px; line-height: 1.72; }

/* ---------- tags ---------- */
.tags {
  display: flex; flex-wrap: wrap; gap: 9px;
  padding: 0; margin: 20px 0 0; list-style: none;
  max-width: none;
}
.tags li {
  border: 1px solid var(--line-2);
  border-radius: 999px;
  padding: 6px 15px;
  font-size: 14.5px;
  background: var(--paper);
  color: var(--ink-2);
  box-shadow: var(--shadow-sm);
  transition: border-color .16s, color .16s;
}
.tags li:hover { border-color: var(--brand); color: var(--ink); }
.tags .n {
  color: var(--brand-deep);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  margin-left: 3px;
}

/* ---------- table ---------- */
.table-scroll {
  overflow-x: auto;
  margin: 24px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--paper);
  box-shadow: var(--shadow-sm);
  -webkit-overflow-scrolling: touch;
}
table {
  border-collapse: collapse;
  width: 100%;
  font-size: 15.5px;
  min-width: 480px;
}
table.t-salary { min-width: 700px; }
caption {
  text-align: left;
  font-size: 13.5px;
  color: var(--ink-3);
  padding: 16px 22px 0;
  line-height: 1.6;
  caption-side: top;
}
th, td {
  padding: 13px 22px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}
thead th {
  background: transparent;
  font-weight: 650;
  white-space: nowrap;
  font-size: 13.5px;
  letter-spacing: .04em;
  color: var(--ink-3);
  border-bottom: 1px solid var(--line-2);
  padding-top: 16px;
  padding-bottom: 11px;
}
tbody th { font-weight: 650; white-space: nowrap; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tbody tr:last-child th, tbody tr:last-child td { border-bottom: 0; }
tbody tr { transition: background .14s; }
tbody tr:hover { background: var(--brand-tint); }

/* median emphasis inside salary table */
td.hi {
  font-weight: 750;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

/* pure-css data bar */
.bar {
  display: block;
  height: 7px;
  min-width: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--brand) 0%, var(--brand-deep) 100%);
  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, .06);
}
td.barcell { width: 30%; min-width: 132px; padding-right: 26px; }

/* 25–75 percentile range with median marker */
.range { position: relative; display: block; height: 20px; }
.range::before {
  content: "";
  position: absolute; left: 0; right: 0; top: 9px;
  height: 2px; border-radius: 2px;
  background: var(--line);
}
.range::after {
  content: "";
  position: absolute; left: var(--s); width: var(--w); top: 7px;
  height: 6px; border-radius: 999px;
  background: linear-gradient(90deg, #f2a97e 0%, var(--brand) 100%);
}
.range i {
  position: absolute; left: var(--m); top: 3.5px;
  width: 13px; height: 13px; margin-left: -6.5px;
  border-radius: 50%;
  background: #fff;
  border: 2.5px solid var(--brand-deep);
  box-shadow: 0 1px 3px rgba(28, 24, 21, .22);
  z-index: 1;
}
.legend {
  display: flex; flex-wrap: wrap; gap: 8px 20px;
  margin: 16px 0 0; padding: 0; list-style: none;
  font-size: 13.5px; color: var(--ink-3);
}
.legend li { display: flex; align-items: center; gap: 7px; }
.legend .k-range {
  width: 26px; height: 6px; border-radius: 999px;
  background: linear-gradient(90deg, #f2a97e, var(--brand));
}
.legend .k-median {
  width: 13px; height: 13px; border-radius: 50%;
  background: #fff; border: 2.5px solid var(--brand-deep);
}

/* grouped job-taxonomy blocks */
.taxo {
  margin: 28px 0 0;
  display: grid; gap: 14px;
}
.taxo-g {
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 3px solid var(--brand);
  border-radius: var(--r);
  padding: 22px 26px 20px;
  box-shadow: var(--shadow-sm);
}
.taxo-g h3 { margin: 0 0 12px; font-size: 17px; }
.taxo-g p { margin: 12px 0 0; color: var(--ink-2); font-size: 15px; max-width: var(--prose); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tags span {
  display: inline-block;
  padding: 5px 13px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand-deep);
  font-size: 14px; font-weight: 550;
  border: 1px solid #f7ddcd;
}

/* ---------- faq ---------- */
.qa {
  border-top: 1px solid var(--line);
  padding: 26px 0 8px;
  max-width: var(--prose);
}
.qa:first-of-type { border-top: 0; padding-top: 8px; }
.qa h3 {
  margin: 0 0 10px;
  font-size: 18px;
  padding-left: 26px;
  position: relative;
  letter-spacing: -.015em;
}
.qa h3::before {
  content: "Q";
  position: absolute; left: 0; top: 0;
  color: var(--brand);
  font-weight: 800;
  font-size: 17px;
  font-family: "Helvetica Neue", Arial, sans-serif;
}
.qa p { margin: 0 0 12px; color: var(--ink-2); }

/* ---------- steps ---------- */
ol.steps {
  counter-reset: s;
  list-style: none;
  padding: 0;
  margin: 26px 0 0;
  max-width: var(--prose);
}
ol.steps li {
  position: relative;
  padding: 0 0 24px 46px;
  counter-increment: s;
}
ol.steps li::before {
  content: counter(s);
  position: absolute; left: 0; top: 1px;
  width: 29px; height: 29px; border-radius: 50%;
  background: var(--paper);
  border: 1.5px solid var(--brand);
  color: var(--brand-deep);
  font-size: 14px; font-weight: 750; text-align: center; line-height: 26px;
  font-variant-numeric: tabular-nums;
}
ol.steps li::after {
  content: "";
  position: absolute; left: 14px; top: 34px; bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--line-2), transparent);
}
ol.steps li:last-child::after { display: none; }
ol.steps strong { display: block; margin-bottom: 3px; font-size: 16.5px; }
ol.steps span { color: var(--ink-2); font-size: 15.5px; line-height: 1.72; display: block; }

/* ---------- callout ---------- */
.callout {
  position: relative;
  background: linear-gradient(180deg, var(--brand-soft) 0%, var(--brand-tint) 100%);
  border: 1px solid #f6ddcd;
  border-left: 3px solid var(--brand);
  padding: 20px 24px;
  border-radius: var(--r-sm);
  color: var(--ink-2);
  font-size: 15.5px;
  line-height: 1.74;
  margin: 22px 0 0;
  max-width: none;
}
.callout strong { color: var(--ink); }
.callout p:first-child { margin-top: 0; }
.callout p:last-child { margin-bottom: 0; }

/* ---------- cta ---------- */
.cta {
  display: inline-flex; align-items: center; gap: 9px;
  background: linear-gradient(160deg, var(--brand) 0%, var(--brand-dark) 100%);
  color: #fff;
  font-weight: 650;
  font-size: 16px;
  padding: 12px 26px;
  border-radius: 999px;
  box-shadow: 0 4px 16px -4px rgba(194, 80, 22, .5);
  transition: transform .18s, box-shadow .18s;
  margin-top: 6px;
}
.cta:hover {
  color: #fff; text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px -6px rgba(194, 80, 22, .58);
}

/* ---------- footer ---------- */
.site-foot {
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, var(--bg) 0%, var(--brand-tint) 100%);
  margin-top: 64px;
  padding: 42px 0 48px;
  font-size: 14px;
  color: var(--ink-3);
  line-height: 1.75;
}
.foot-links {
  display: flex; flex-wrap: wrap; gap: 10px 22px;
  margin: 0 0 22px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
}
.site-foot p { margin: 5px 0; max-width: 62em; }
.site-foot a { color: var(--ink-2); }
.site-foot a:hover { color: var(--brand-deep); }

@media (max-width: 860px) {
  .hero { padding: 54px 0 48px; }
  main { padding: 56px 0 16px; }
  section { margin-bottom: 66px; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .wrap { padding: 0 18px; }
  .hero { padding: 40px 0 38px; }
  .hero h1 { letter-spacing: -.02em; }
  .hero h1 br { display: none; }
  .taxo-g { padding: 18px 18px 16px; }
  .nav { gap: 2px; font-size: 14px; width: 100%; margin-left: 0; }
  .nav a { padding: 4px 9px; }
  .site-head .wrap { padding-bottom: 10px; min-height: 58px; }
  .stats { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 11px; }
  .stats li { padding: 16px 16px 14px; }
  .card { padding: 20px; }
  th, td { padding: 11px 16px; }
  caption { padding: 14px 16px 0; }
  .callout { padding: 17px 18px; }
  .site-foot { margin-top: 48px; padding: 34px 0 40px; }
}