:root {
  color-scheme: dark;
  --ink: #ebe5d7;
  --muted: #aaa79f;
  --black: #0c0d0f;
  --panel: #151719;
  --panel-2: #1d1f21;
  --line: #34302a;
  --gold: #d0a84a;
  --gold-soft: #f0d58b;
  --ember: #b75028;
  --blue: #4a88a8;
  --green: #6f9b70;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--black); color: var(--ink); font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; line-height: 1.7; }
a { color: inherit; }
img { display: block; max-width: 100%; }
button { font: inherit; }

.site-header { position: sticky; top: 0; z-index: 20; height: 60px; display: flex; align-items: center; justify-content: space-between; padding: 0 max(24px, calc((100vw - var(--max)) / 2)); background: rgba(11, 12, 13, .94); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.brand { color: var(--gold-soft); font-weight: 800; text-decoration: none; }
nav { display: flex; gap: 24px; }
nav a { color: var(--muted); font-size: 14px; text-decoration: none; }
nav a:hover, nav a:focus-visible { color: var(--gold-soft); }

.hero { min-height: 620px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(440px, 620px); align-items: center; gap: 64px; padding: 72px max(24px, calc((100vw - var(--max)) / 2)); background: radial-gradient(circle at 75% 30%, rgba(183, 80, 40, .18), transparent 36%), linear-gradient(110deg, #111315 0%, #111315 48%, #171718 100%); border-bottom: 1px solid var(--line); }
.hero-inner { max-width: 570px; }
.eyebrow { margin: 0 0 10px; color: var(--gold); font-size: 13px; font-weight: 800; letter-spacing: 0; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 24px; font-family: Georgia, "Noto Serif SC", serif; font-size: 60px; line-height: 1.12; letter-spacing: 0; }
h2 { margin-bottom: 12px; font-family: Georgia, "Noto Serif SC", serif; font-size: 38px; line-height: 1.2; letter-spacing: 0; }
h3 { margin-bottom: 6px; font-size: 17px; letter-spacing: 0; }
.lead { max-width: 620px; color: #c7c3ba; font-size: 18px; }
.manual-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 22px; color: #92908a; font-size: 12px; }
.manual-meta span { padding-right: 18px; border-right: 1px solid #4a4339; }
.manual-meta span:last-child { padding-right: 0; border-right: 0; }
.hero-actions { display: flex; gap: 12px; margin-top: 30px; }
.primary-action, .secondary-action { display: inline-flex; min-height: 44px; align-items: center; justify-content: center; padding: 8px 18px; border: 1px solid var(--gold); border-radius: 4px; font-size: 14px; font-weight: 800; text-decoration: none; }
.primary-action { background: var(--gold); color: #14120d; }
.secondary-action { color: var(--gold-soft); }
.hero-ui { margin: 0; }
.hero-ui img { width: 100%; border: 1px solid #5b4a2f; box-shadow: 0 22px 48px rgba(0,0,0,.45); image-rendering: auto; }
.hero-ui figcaption { margin-top: 12px; color: var(--muted); font-size: 13px; }

.band { padding: 92px 24px; background: #f0eee8; color: #1c1d1e; }
.band-dark { background: #111315; color: var(--ink); }
.band-ember { background: #231815; color: var(--ink); border-top: 1px solid #4a2d21; border-bottom: 1px solid #4a2d21; }
.content { width: min(100%, var(--max)); margin: 0 auto; }
.section-heading { max-width: 720px; margin-bottom: 42px; }
.section-heading > p:last-child { color: #66645e; }
.band-dark .section-heading > p:last-child, .band-ember .section-heading > p:last-child { color: var(--muted); }
.split-heading { max-width: none; display: grid; grid-template-columns: 1fr minmax(280px, 480px); gap: 60px; align-items: end; }

.steps { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.steps li { display: grid; grid-template-columns: 90px 1fr; gap: 24px; padding: 30px 0; border-bottom: 1px solid var(--line); }
.step-number { color: var(--gold); font-family: Georgia, serif; font-size: 28px; }
.steps p { max-width: 820px; margin-bottom: 0; color: var(--muted); }
.callout { display: flex; gap: 18px; margin-top: 30px; padding: 18px 20px; background: #211d15; border-left: 3px solid var(--gold); color: #d5d0c5; }
.callout strong { flex: 0 0 auto; color: var(--gold-soft); }

.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid #c9c5ba; border-left: 1px solid #c9c5ba; }
.principle-grid article { min-height: 220px; padding: 24px; border-right: 1px solid #c9c5ba; border-bottom: 1px solid #c9c5ba; background: rgba(255,255,255,.32); }
.chapter-mark { display: inline-grid; width: 32px; height: 32px; place-items: center; margin-bottom: 18px; border: 1px solid #9b6e25; color: #8b5a21; font-family: Georgia, serif; font-weight: 800; }
.principle-grid p { margin-bottom: 0; color: #5b5a55; }
.workflow-title { display: flex; align-items: baseline; gap: 14px; margin: 56px 0 0; padding-bottom: 14px; border-bottom: 2px solid #272724; }
.workflow-title span { font-family: Georgia, "Noto Serif SC", serif; font-size: 25px; font-weight: 800; }
.workflow-title em { color: #77736a; font-size: 13px; font-style: normal; }
.workflow-list { margin: 0; padding: 0; list-style: none; }
.workflow-list li { display: grid; grid-template-columns: 64px 1fr; gap: 20px; padding: 22px 4px; border-bottom: 1px solid #cbc7bc; }
.workflow-list li > span { color: #8b5a21; font-family: Georgia, serif; font-size: 22px; font-weight: 800; }
.workflow-list h3 { margin-bottom: 4px; }
.workflow-list p { margin-bottom: 0; color: #5b5a55; }

.control-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid #c9c5ba; border-left: 1px solid #c9c5ba; }
.control-item { min-height: 218px; padding: 24px; border-right: 1px solid #c9c5ba; border-bottom: 1px solid #c9c5ba; background: rgba(255,255,255,.32); }
.control-item.featured { background: #e2d9c2; }
.control-item p { color: #5b5a55; }
.control-title { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.control-title h3 { margin: 0; font-size: 20px; }
.key { display: inline-flex; min-width: 38px; height: 24px; align-items: center; justify-content: center; padding: 0 7px; border-radius: 3px; background: #282723; color: #f4dc92; font-size: 11px; font-weight: 800; }
.key.alt { margin-right: 7px; background: #282723; color: #f4dc92; }
.alternate { margin-top: 14px; color: #5b5a55; font-size: 13px; }

.ui-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: center; }
.legend { margin: 28px 0 0; padding: 0; list-style: none; border-top: 1px solid #52362b; }
.legend li { display: grid; grid-template-columns: 74px 1fr; gap: 16px; padding: 12px 0; border-bottom: 1px solid #52362b; color: #c9c0ba; }
.legend span { color: var(--gold-soft); font-weight: 800; }
.image-button { position: relative; display: block; width: 100%; padding: 0; overflow: hidden; background: #0b0c0d; border: 1px solid #5b4a2f; border-radius: 4px; color: white; cursor: zoom-in; }
.image-button img { width: 100%; transition: transform .22s ease, opacity .22s ease; }
.image-button span { position: absolute; right: 10px; bottom: 10px; padding: 5px 9px; border-radius: 3px; background: rgba(8,8,8,.82); color: #f4df9b; font-size: 12px; opacity: 0; transition: opacity .2s ease; }
.image-button:hover img { transform: scale(1.015); opacity: .9; }
.image-button:hover span, .image-button:focus-visible span { opacity: 1; }

.role-table { border-top: 2px solid #272724; }
.role-row { display: grid; grid-template-columns: 130px 180px 1fr; gap: 24px; align-items: start; padding: 20px 4px; border-bottom: 1px solid #cbc7bc; }
.role-row strong { color: #8b5a21; }
.role-head { color: #77736a; font-size: 12px; font-weight: 800; text-transform: uppercase; }

.talent-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: start; }
.talent-gallery figure { margin: 0; }
.talent-gallery figure.wide { grid-column: 1 / -1; display: grid; grid-template-columns: 1.45fr .55fr; gap: 24px; align-items: end; padding-top: 28px; border-top: 1px solid var(--line); }
.talent-gallery figure.wide .image-button { max-height: 520px; }
.talent-gallery figure.wide img { object-fit: cover; }
.talent-gallery figcaption { padding-top: 12px; color: var(--muted); font-size: 13px; }
.talent-gallery figcaption strong { display: block; color: var(--gold-soft); font-size: 15px; }

.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.faq-grid details { padding: 0 18px; background: #1a1514; border: 1px solid #52362b; }
.faq-grid summary { padding: 18px 0; color: #f0d58b; font-weight: 800; cursor: pointer; list-style-position: outside; }
.faq-grid p { margin: -2px 0 18px 20px; color: #c9c0ba; font-size: 14px; }

.checklist-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 80px; }
.checklist { margin: 0; padding: 0; list-style: none; counter-reset: check; }
.checklist li { position: relative; padding: 18px 0 18px 48px; border-bottom: 1px solid #cac6bb; }
.checklist li::before { content: "✓"; position: absolute; left: 0; top: 18px; width: 26px; height: 26px; display: grid; place-items: center; border-radius: 50%; background: #2f5f4c; color: white; font-weight: 800; }

footer { display: flex; justify-content: space-between; gap: 24px; padding: 30px max(24px, calc((100vw - var(--max)) / 2)); color: #7d7c78; font-size: 12px; border-top: 1px solid var(--line); }
footer p { margin: 0; }

.lightbox { width: min(94vw, 1200px); max-height: 92vh; padding: 42px 16px 16px; background: #08090a; border: 1px solid #6a5735; border-radius: 4px; }
.lightbox::backdrop { background: rgba(0,0,0,.86); }
.lightbox img { max-height: calc(92vh - 60px); margin: 0 auto; object-fit: contain; }
.close-button { position: absolute; top: 6px; right: 10px; width: 34px; height: 34px; padding: 0; background: transparent; border: 0; color: #ddd; font-size: 28px; line-height: 1; cursor: pointer; }

@media (max-width: 900px) {
  nav { display: none; }
  .hero { grid-template-columns: 1fr; gap: 40px; padding-top: 56px; }
  h1 { font-size: 44px; }
  .control-grid { grid-template-columns: repeat(2, 1fr); }
  .principle-grid, .faq-grid { grid-template-columns: 1fr; }
  .ui-layout, .checklist-layout { grid-template-columns: 1fr; gap: 36px; }
  .talent-gallery { grid-template-columns: repeat(2, 1fr); }
  .talent-gallery figure.wide { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .site-header { height: 54px; }
  .hero { min-height: auto; padding: 44px 18px 54px; }
  h1 { font-size: 38px; }
  h2 { font-size: 31px; }
  .lead { font-size: 16px; }
  .hero-actions { flex-direction: column; }
  .manual-meta { flex-direction: column; gap: 4px; }
  .manual-meta span { padding: 0; border-right: 0; }
  .band { padding: 64px 18px; }
  .split-heading { grid-template-columns: 1fr; gap: 8px; }
  .control-grid { grid-template-columns: 1fr; }
  .control-item { min-height: 0; }
  .steps li { grid-template-columns: 54px 1fr; gap: 10px; }
  .workflow-list li { grid-template-columns: 48px 1fr; gap: 10px; }
  .callout { flex-direction: column; gap: 4px; }
  .role-row { grid-template-columns: 84px 1fr; gap: 10px; }
  .role-row > :last-child { grid-column: 1 / -1; }
  .role-head > :last-child { display: none; }
  .talent-gallery { grid-template-columns: 1fr; }
  .talent-gallery figure.wide { grid-column: auto; }
  footer { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .image-button img { transition: none; }
}