:root {
  --accent: #ffb000;
  --accent-dark: #b45f00;
  --ink: #20242a;
  --muted: #69717d;
  --paper: #f5f2ec;
  --panel: #ffffff;
  --deep: #25221f;
  --hero: linear-gradient(135deg, #25221f 0%, #41403d 52%, #ffb000 130%);
  --font: 'Arial', 'Microsoft YaHei', sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font);
  line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(20px, 5vw, 72px);
  background: rgba(255,255,255,.9);
  border-bottom: 1px solid rgba(0,0,0,.08);
  backdrop-filter: blur(12px);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  color: white;
  background: var(--deep);
  border-radius: 6px;
}
.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 18px;
  color: var(--muted);
  font-size: 15px;
}
.nav a { padding: 6px 0; border-bottom: 2px solid transparent; }
.nav a.active, .nav a:hover { color: var(--ink); border-color: var(--accent); }
.hero {
  min-height: 560px;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(260px, .6fr);
  align-items: center;
  gap: 40px;
  padding: clamp(56px, 8vw, 110px) clamp(20px, 5vw, 72px);
  color: white;
  background: var(--hero);
  overflow: hidden;
}
.hero-grid { background-image: linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px), var(--hero); background-size: 42px 42px, 42px 42px, auto; }
.hero-data { background-image: linear-gradient(120deg, rgba(255,255,255,.1) 0 1px, transparent 1px 100%), var(--hero); background-size: 28px 28px, auto; }
.hero-soft { border-bottom-left-radius: 48px; border-bottom-right-radius: 48px; }
.hero-blocks { clip-path: polygon(0 0, 100% 0, 100% 92%, 76% 100%, 0 92%); }
.hero-formal { box-shadow: inset 0 -12px 0 var(--accent); }
.hero-showcase { background-size: 100% 100%; }
.hero h1, .page-title h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(36px, 6vw, 72px);
  line-height: 1.08;
  letter-spacing: 0;
}
.hero p { max-width: 680px; color: rgba(255,255,255,.82); font-size: 18px; }
.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button {
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 6px;
  font-weight: 800;
}
.button.primary { color: var(--deep); background: var(--accent); }
.button.ghost { color: white; border: 1px solid rgba(255,255,255,.45); }
.hero-panel {
  padding: 28px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 8px;
}
.hero-panel span { color: rgba(255,255,255,.72); }
.hero-panel strong { display: block; margin: 8px 0; font-size: 64px; line-height: 1; color: var(--accent); }
.section, .page-title {
  padding: clamp(48px, 7vw, 86px) clamp(20px, 5vw, 72px);
}
.stat-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 1px;
  background: rgba(0,0,0,.12);
  padding: 1px;
}
.stat-strip div {
  min-height: 120px;
  display: grid;
  align-content: center;
  gap: 8px;
  padding: 24px clamp(20px, 4vw, 48px);
  background: var(--panel);
}
.stat-strip strong {
  color: var(--accent-dark);
  font-size: 38px;
  line-height: 1;
}
.stat-strip span {
  color: var(--muted);
  font-weight: 800;
}
.page-title {
  color: white;
  background: var(--deep);
}
.page-title p { max-width: 760px; color: rgba(255,255,255,.78); }
.split {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  gap: 42px;
  align-items: start;
}
h2 {
  margin: 0 0 22px;
  font-size: clamp(26px, 3vw, 42px);
  line-height: 1.18;
}
h3 { margin: 0 0 10px; font-size: 21px; line-height: 1.3; }
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.card {
  min-height: 180px;
  padding: 24px;
  background: var(--panel);
  border: 1px solid rgba(0,0,0,.08);
  border-radius: 8px;
  box-shadow: 0 12px 28px rgba(0,0,0,.05);
}
.service-card span {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--accent-dark);
  font-weight: 900;
}
.case-band { background: rgba(255,255,255,.42); }
.case-card { border-top: 5px solid var(--accent); }
.case-meta, .proof {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 900;
}
.proof {
  margin: 16px 0 0;
  padding: 6px 10px;
  background: color-mix(in srgb, var(--accent) 18%, white);
  border-radius: 999px;
}
.feature-list {
  display: grid;
  gap: 14px;
}
.feature-list article {
  display: grid;
  grid-template-columns: 14px 1fr;
  gap: 14px;
  align-items: start;
  padding: 18px 0;
  border-bottom: 1px solid rgba(0,0,0,.1);
}
.feature-list span {
  width: 12px;
  height: 12px;
  margin-top: 8px;
  background: var(--accent);
  border-radius: 50%;
}
.feature-list p { margin: 0; }
.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.metric-grid div {
  min-height: 130px;
  padding: 22px;
  background: var(--panel);
  border-radius: 8px;
}
.metric-grid strong {
  display: block;
  color: var(--accent-dark);
  font-size: 42px;
  line-height: 1;
}
.credential-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}
.credential-grid figure {
  margin: 0;
  padding: 14px;
  background: var(--panel);
  border: 1px solid rgba(0,0,0,.08);
  border-radius: 8px;
}
.credential-grid img {
  width: 100%;
  max-height: 520px;
  object-fit: contain;
  background: #f8f8f8;
  border-radius: 6px;
}
.credential-grid figcaption {
  padding: 12px 4px 2px;
  color: var(--muted);
  font-weight: 800;
}
.hiring-band {
  background: var(--deep);
  color: white;
}
.hiring-band p {
  color: rgba(255,255,255,.78);
}
.hiring-band .feature-list article {
  border-color: rgba(255,255,255,.18);
}
.inline-button {
  width: max-content;
  margin-top: 8px;
}
.job-grid {
  display: grid;
  gap: 20px;
}
.job-card {
  padding: clamp(22px, 4vw, 34px);
  background: var(--panel);
  border: 1px solid rgba(0,0,0,.08);
  border-radius: 8px;
  box-shadow: 0 12px 28px rgba(0,0,0,.05);
}
.job-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  border-bottom: 1px solid rgba(0,0,0,.1);
  padding-bottom: 16px;
}
.job-head h2 {
  margin: 0;
  font-size: clamp(24px, 3vw, 34px);
}
.job-head strong {
  color: var(--accent-dark);
  white-space: nowrap;
}
.job-meta {
  color: var(--muted);
  font-weight: 800;
}
.job-card ul {
  margin: 0 0 18px;
  padding-left: 20px;
}
.job-card li {
  margin: 6px 0;
}
.contact-layout {
  display: grid;
  grid-template-columns: minmax(260px, .8fr) minmax(280px, 1.2fr);
  gap: 24px;
}
.contact-card, .contact-form {
  padding: 28px;
  background: var(--panel);
  border-radius: 8px;
  border: 1px solid rgba(0,0,0,.08);
}
.contact-form {
  display: grid;
  gap: 16px;
}
label { display: grid; gap: 8px; font-weight: 800; }
input, textarea {
  width: 100%;
  padding: 12px 14px;
  color: var(--ink);
  border: 1px solid rgba(0,0,0,.18);
  border-radius: 6px;
  font: inherit;
}
textarea { min-height: 150px; resize: vertical; }
button {
  min-height: 46px;
  color: white;
  background: var(--deep);
  border: 0;
  border-radius: 6px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}
.footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, .7fr);
  gap: 30px;
  padding: 42px clamp(20px, 5vw, 72px);
  color: rgba(255,255,255,.78);
  background: var(--deep);
}
.footer strong { color: white; }
.footer-contact { display: grid; gap: 8px; }
@media (max-width: 820px) {
  .site-header { align-items: flex-start; flex-direction: column; }
  .nav { justify-content: flex-start; }
  .hero, .split, .contact-layout, .footer { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
  .metric-grid { grid-template-columns: 1fr; }
  .job-head { display: grid; }
}