:root {
  --ink: #18231f;
  --muted: #59645f;
  --paper: #f7f4ed;
  --paper-2: #eee8dc;
  --white: #fffdf8;
  --forest: #153a32;
  --forest-2: #0d2b25;
  --gold: #c39a4b;
  --clay: #a75e48;
  --line: rgba(24, 35, 31, 0.14);
  --shadow: 0 22px 60px rgba(21, 58, 50, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif; line-height: 1.75; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
.container.narrow { width: min(820px, calc(100% - 40px)); }

.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--line); background: rgba(247, 244, 237, 0.94); backdrop-filter: blur(14px); }
.header-inner { width: min(1240px, calc(100% - 32px)); min-height: 72px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.brand { display: inline-flex; align-items: center; gap: 10px; min-width: 176px; }
.brand-mark { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; background: var(--forest); color: var(--white); font-family: Georgia, serif; font-size: 0.85rem; letter-spacing: 0.08em; }
.brand strong, .brand small { display: block; line-height: 1.25; }
.brand small { color: var(--muted); font-family: Georgia, serif; letter-spacing: 0.05em; }
.site-nav { display: flex; align-items: center; justify-content: flex-end; gap: 18px; font-size: 0.88rem; white-space: nowrap; }
.site-nav a { color: #34413c; }
.site-nav a:hover, .text-link, .back-link { color: var(--clay); }

.home-hero { position: relative; min-height: 780px; display: grid; align-items: end; overflow: hidden; background: var(--forest-2); color: var(--white); }
.hero-image, .hero-overlay { position: absolute; inset: 0; }
.hero-image img { width: 100%; height: 100%; object-fit: cover; object-position: center 26%; }
.hero-overlay { background: linear-gradient(90deg, rgba(5, 25, 21, 0.92) 0%, rgba(5, 25, 21, 0.72) 45%, rgba(5, 25, 21, 0.18) 78%), linear-gradient(0deg, rgba(5, 25, 21, 0.82), transparent 55%); }
.hero-copy { position: relative; z-index: 2; padding: 110px 0 64px; }
.eyebrow { margin: 0 0 14px; color: var(--gold); font-weight: 800; font-size: 0.92rem; letter-spacing: 0.08em; text-transform: uppercase; }
.home-hero h1 { margin: 0; font-family: Georgia, "Songti SC", serif; font-size: clamp(4rem, 9vw, 7.4rem); line-height: 0.92; letter-spacing: -0.035em; }
.home-hero h1 span { display: inline-block; margin-top: 16px; color: #e5d0a3; font-size: 0.55em; font-weight: 400; letter-spacing: 0.02em; }
.lead { max-width: 760px; margin: 24px 0 0; color: rgba(255, 253, 248, 0.84); font-size: 1.18rem; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button { min-height: 48px; padding: 11px 20px; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid transparent; font-weight: 800; transition: transform .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button.light, .button.primary { background: var(--white); color: var(--forest); }
.button.ghost, .button.secondary { color: var(--white); border-color: rgba(255,255,255,.42); }
.button.dark { background: var(--forest); color: var(--white); }
.button.outline { border-color: var(--forest); color: var(--forest); }
.hero-facts { list-style: none; display: flex; flex-wrap: wrap; gap: 42px; padding: 34px 0 0; margin: 46px 0 0; border-top: 1px solid rgba(255,255,255,.22); }
.hero-facts li { display: grid; gap: 2px; }
.hero-facts strong { font-family: Georgia, serif; color: #e5d0a3; font-size: 1.6rem; }
.hero-facts span { color: rgba(255,255,255,.72); font-size: .9rem; }

.page-hero, .article-hero { padding: 112px 0 88px; background: var(--forest); color: var(--white); }
.page-hero h1, .article-hero h1 { margin: 0; font-family: Georgia, "Songti SC", serif; font-size: clamp(2.8rem, 6vw, 5.1rem); line-height: 1.08; }
.article-hero h1 { font-size: clamp(2.5rem, 5vw, 4.3rem); }
.article-hero .back-link { display: inline-block; margin-bottom: 40px; color: #e5d0a3; }
.byline { color: rgba(255,255,255,.62); margin: 24px 0 0; }

.section { padding: 86px 0; }
.section-soft { background: var(--paper-2); }
.section-dark { background: var(--forest-2); color: var(--white); }
.section-warning { background: #efe0ce; }
.section h2 { margin: 0 0 18px; color: var(--forest); font-family: Georgia, "Songti SC", serif; font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.2; }
.section-dark h2, .section-dark h3 { color: var(--white); }
.section p { color: var(--muted); }
.section-dark p { color: rgba(255,255,255,.72); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 50px; margin-bottom: 36px; }
.section-head > p { max-width: 470px; }
.section-head h2 { margin-bottom: 0; }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 70px; align-items: center; }
.two-grid, .three-grid, .four-grid, .article-grid { display: grid; gap: 20px; }
.two-grid { grid-template-columns: repeat(2, 1fr); }
.three-grid { grid-template-columns: repeat(3, 1fr); }
.four-grid { grid-template-columns: repeat(4, 1fr); }
.article-grid { grid-template-columns: repeat(2, 1fr); }

.topic-card, .evidence-card, .level-card, .article-card, .link-panel { display: block; min-height: 250px; padding: 28px; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,253,248,.72); box-shadow: var(--shadow); }
.topic-card span, .evidence-card > span, .level-card > span, .link-panel > span, .card-meta { color: var(--clay); font-size: .85rem; font-weight: 800; letter-spacing: .06em; }
.topic-card h2, .topic-card h3, .evidence-card h2, .level-card h2, .article-card h3, .link-panel h3 { margin: 14px 0 10px; color: var(--forest); font-family: Georgia, "Songti SC", serif; font-size: 1.45rem; line-height: 1.35; }
.topic-card p, .evidence-card p, .level-card p, .article-card p, .link-panel p { margin: 0; }
.evidence-card a, .article-card .text-link { display: inline-block; margin-top: 20px; color: var(--clay); font-weight: 800; }
.section-dark .dark-card { min-height: 230px; padding: 28px; border: 1px solid rgba(255,255,255,.15); border-radius: 18px; background: rgba(255,255,255,.05); }
.dark-card span { color: var(--gold); font-weight: 800; }
.dark-card h3 { margin: 12px 0; font-family: Georgia, "Songti SC", serif; font-size: 1.35rem; }
.center-action { text-align: center; margin-top: 36px; }

.stat-panel { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; padding: 32px; border-radius: 22px; background: var(--forest); color: var(--white); }
.stat-panel div { padding: 20px; border: 1px solid rgba(255,255,255,.14); border-radius: 12px; text-align: center; }
.stat-panel strong, .stat-panel span { display: block; }
.stat-panel strong { color: #e5d0a3; font-family: Georgia, serif; font-size: 1.45rem; }
.stat-panel span { color: rgba(255,255,255,.7); font-size: .88rem; }
.stat-panel p { grid-column: 1/-1; margin: 8px 0 0; text-align: center; color: rgba(255,255,255,.76); }

.answer-box { max-width: 920px; padding: 28px 32px; border-left: 4px solid var(--gold); background: var(--white); box-shadow: var(--shadow); }
.answer-box strong { color: var(--clay); }
.answer-box p { margin-bottom: 0; }
.timeline { margin-top: 52px; }
.timeline article { display: grid; grid-template-columns: 150px 1fr; gap: 34px; padding: 30px 0; border-bottom: 1px solid var(--line); }
.timeline time { color: var(--clay); font-family: Georgia, serif; font-size: 1.25rem; font-weight: 800; }
.timeline h2 { font-size: 1.7rem; }
.timeline p { margin: 0; }

.steps { list-style: none; counter-reset: item; padding: 0; margin: 36px 0 0; }
.steps li { counter-increment: item; display: grid; grid-template-columns: 52px 220px 1fr; gap: 20px; align-items: start; padding: 22px 0; border-bottom: 1px solid var(--line); }
.steps li::before { content: counter(item, decimal-leading-zero); width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center; background: var(--forest); color: var(--white); font-family: Georgia, serif; }
.steps strong { color: var(--forest); font-size: 1.05rem; }
.steps span { color: var(--muted); }
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.compare > div { padding: 34px; border-radius: 20px; background: var(--white); box-shadow: var(--shadow); }
.compare h2 { font-size: 1.8rem; }
.check-list, .x-list, .large-list { padding-left: 1.2em; color: var(--muted); }
.check-list li::marker { color: #36835f; }
.x-list li::marker { color: var(--clay); }
.large-list { margin: 0; font-size: 1.08rem; }
.large-list li { margin: 12px 0; }

.price-panel { display: grid; grid-template-columns: 1.35fr .65fr; gap: 28px; padding: 42px; border-radius: 24px; background: var(--white); box-shadow: var(--shadow); }
.historical-note { padding: 26px; border-radius: 16px; background: var(--paper-2); }
.historical-note strong { color: var(--clay); }
.appointment { padding: 52px; border: 1px solid var(--line); border-radius: 24px; background: var(--white); box-shadow: var(--shadow); }
.privacy { margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line); font-size: .88rem; }
.source-block { width: min(1000px, calc(100% - 40px)); margin: 0 auto 86px; padding: 30px; border: 1px solid var(--line); border-radius: 18px; background: var(--white); }
.source-block h2 { font-size: 1.5rem; }
.source-block a, .prose a { color: var(--clay); text-decoration: underline; text-underline-offset: 3px; }

.faq-list { margin-top: 32px; }
.faq-list details { border-top: 1px solid var(--line); }
.faq-list details:last-child { border-bottom: 1px solid var(--line); }
.faq-list summary { cursor: pointer; padding: 24px 4px; color: var(--forest); font-weight: 800; font-size: 1.08rem; }
.faq-answer { padding: 0 4px 22px; }
.faq-answer p { margin: 0; }

.evidence-table-wrap { overflow-x: auto; border-radius: 18px; box-shadow: var(--shadow); }
.evidence-table { width: 100%; border-collapse: collapse; min-width: 880px; background: var(--white); }
.evidence-table th, .evidence-table td { padding: 18px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.evidence-table th { background: var(--forest); color: var(--white); }
.evidence-table a { color: var(--clay); text-decoration: underline; }

.prose { font-size: 1.04rem; }
.prose h2 { margin-top: 2.2em; font-size: 2rem; }
.prose h3 { margin-top: 1.7em; color: var(--forest); font-size: 1.3rem; }
.prose p { color: #3f4a46; }
.prose hr { margin: 50px 0 30px; border: 0; border-top: 1px solid var(--line); }
.cta-band { text-align: center; }
.cta-band .actions { justify-content: center; }

.site-footer { padding: 58px 0 22px; background: #091f1a; color: var(--white); }
.footer-grid { width: min(1160px, calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr 1.2fr; gap: 42px; }
.footer-grid strong { color: #e5d0a3; }
.footer-grid p { margin: 8px 0 0; color: rgba(255,255,255,.62); font-size: .9rem; }
.footer-bottom { width: min(1160px, calc(100% - 40px)); margin: 42px auto 0; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.12); display: flex; justify-content: space-between; gap: 18px; color: rgba(255,255,255,.45); font-size: .82rem; }

@media (max-width: 1100px) {
  .site-nav { overflow-x: auto; justify-content: flex-start; padding: 8px 0; }
  .header-inner { align-items: flex-start; flex-direction: column; padding: 12px 0; }
  .four-grid { grid-template-columns: repeat(2, 1fr); }
  .home-hero { min-height: 700px; }
}

@media (max-width: 760px) {
  .container, .container.narrow { width: min(100% - 28px, 1160px); }
  .site-header { position: static; }
  .header-inner { width: calc(100% - 24px); }
  .site-nav { width: 100%; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; overflow: visible; white-space: normal; text-align: center; font-size: .76rem; line-height: 1.35; }
  .site-nav a { padding: 5px 2px; }
  .home-hero { min-height: 760px; }
  .hero-overlay { background: linear-gradient(0deg, rgba(5,25,21,.94) 0%, rgba(5,25,21,.72) 60%, rgba(5,25,21,.18)); }
  .hero-copy { padding: 170px 0 42px; }
  .home-hero h1 { font-size: 3.8rem; }
  .hero-facts { gap: 20px; }
  .page-hero, .article-hero { padding: 76px 0 62px; }
  .section { padding: 62px 0; }
  .section-head, .split { display: block; }
  .section-head > p { margin-top: 14px; }
  .two-grid, .three-grid, .four-grid, .article-grid, .compare, .price-panel, .footer-grid { grid-template-columns: 1fr; }
  .topic-card, .evidence-card, .level-card, .article-card, .link-panel { min-height: 0; }
  .timeline article { grid-template-columns: 1fr; gap: 8px; }
  .steps li { grid-template-columns: 48px 1fr; }
  .steps span { grid-column: 2; }
  .price-panel, .appointment { padding: 26px; }
  .footer-bottom { flex-direction: column; }
}

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