:root {
  --brand: #C85C7A;
  --brand-dark: #A84160;
  --peach: #E7B7A8;
  --ink: #2B2228;
  --body: #342F32;
  --muted: #746A6F;
  --paper: #FBF7F5;
  --paper-soft: #F3E9E6;
  --amber: #D9913D;
  --line: rgba(43, 34, 40, 0.12);
  --shadow: 0 18px 54px rgba(65, 41, 52, 0.10);
  --radius: 26px;
  --radius-sm: 15px;
  --wrap: min(1180px, calc(100% - 40px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--body);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}
body.modal-open { overflow: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 4px; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
.wrap { width: var(--wrap); margin-inline: auto; }
.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 200;
  transform: translateY(-150%);
  background: var(--ink);
  color: white;
  padding: 8px 12px;
  border-radius: 8px;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251, 247, 245, 0.94);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.header-shell {
  width: min(1260px, calc(100% - 32px));
  min-height: 76px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  min-width: 210px;
}
.brand-mark img { width: 44px; height: 44px; object-fit: contain; border-radius: 12px; }
.brand-mark span { display: grid; line-height: 1.2; }
.brand-mark strong { font-size: 18px; color: var(--ink); letter-spacing: .02em; }
.brand-mark small { color: var(--muted); margin-top: 5px; font-size: 11px; }
.primary-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
}
.primary-nav a {
  text-decoration: none;
  color: var(--muted);
  padding: 10px 12px;
  border-radius: 999px;
  font-size: 14px;
  transition: .2s ease;
}
.primary-nav a:hover, .primary-nav a[aria-current="page"] { color: var(--brand-dark); background: #fff; }
.search-trigger, .menu-toggle {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 999px;
  padding: 9px 14px;
}
.menu-toggle { display: none; }

.search-modal[hidden] { display: none !important; }
.search-modal {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: rgba(43, 34, 40, .52);
  display: grid;
  place-items: start center;
  padding: 9vh 20px 30px;
}
.search-panel {
  position: relative;
  width: min(680px, 100%);
  background: var(--paper);
  border-radius: 28px;
  padding: 36px;
  box-shadow: 0 30px 90px rgba(0,0,0,.25);
}
.search-panel h2 { margin: 4px 0 18px; font-size: clamp(28px, 4vw, 44px); color: var(--ink); line-height: 1.15; }
.search-close { position: absolute; right: 18px; top: 18px; border: 0; background: transparent; color: var(--muted); }
.search-form label { display: block; font-size: 14px; margin-bottom: 8px; color: var(--muted); }
.search-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.search-row input {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 13px 14px;
  background: white;
  color: var(--ink);
  outline: none;
}
.search-row input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(200,92,122,.12); }
.search-row button { border: 0; border-radius: 14px; background: var(--brand); color: #fff; padding: 0 20px; }

.eyebrow {
  margin: 0;
  color: var(--brand-dark);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.display-title {
  font-size: clamp(42px, 7vw, 86px);
  line-height: .99;
  letter-spacing: -.045em;
  color: var(--ink);
  margin: 16px 0 20px;
  max-width: 10ch;
}
.lead { font-size: clamp(17px, 2vw, 21px); color: #5f5359; max-width: 760px; }
.mini-note { color: var(--muted); font-size: 13px; }

.home-cover {
  width: min(1320px, calc(100% - 28px));
  margin: 24px auto 0;
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  min-height: 640px;
  border-radius: 36px;
  overflow: hidden;
  background: var(--paper-soft);
  border: 1px solid var(--line);
}
.cover-copy {
  padding: clamp(42px, 7vw, 88px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.cover-copy .lead { max-width: 660px; }
.cover-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button-primary, .button-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 10px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  font-size: 14px;
}
.button-primary { background: var(--brand); color: #fff; }
.button-primary:hover { background: var(--brand-dark); }
.button-ghost { border: 1px solid var(--line); background: rgba(255,255,255,.66); color: var(--ink); }
.cover-visual { position: relative; min-height: 460px; background: var(--ink); }
.cover-visual img { width: 100%; height: 100%; object-fit: cover; opacity: .88; }
.cover-caption {
  position: absolute;
  inset: auto 24px 24px;
  padding: 18px 20px;
  border-radius: 18px;
  color: #fff;
  background: rgba(43,34,40,.77);
  backdrop-filter: blur(10px);
}
.cover-caption strong { display: block; font-size: 18px; }
.cover-caption span { font-size: 13px; opacity: .8; }

.section { padding: 90px 0; }
.section.tight { padding: 64px 0; }
.section.soft { background: var(--paper-soft); }
.section.dark { background: var(--ink); color: #f7f0f2; }
.section-heading { display: grid; gap: 10px; margin-bottom: 36px; }
.section-heading h2 { margin: 0; color: var(--ink); font-size: clamp(29px, 4vw, 48px); line-height: 1.12; letter-spacing: -.025em; max-width: 18ch; }
.section-heading p:not(.eyebrow) { margin: 0; color: var(--muted); max-width: 780px; }
.section.dark .section-heading h2 { color: #fff; }
.section.dark .section-heading p:not(.eyebrow) { color: #d1c3c9; }
.section-heading.compact { margin-bottom: 22px; }
.section-heading.compact h2 { font-size: clamp(24px, 3vw, 34px); }

.intent-ledger {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.intent-ledger a {
  background: var(--paper);
  padding: 34px;
  text-decoration: none;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: .2s ease;
}
.intent-ledger a:hover { background: #fff; }
.intent-ledger small { color: var(--brand-dark); font-weight: 700; }
.intent-ledger strong { display: block; color: var(--ink); font-size: clamp(25px, 3vw, 34px); line-height: 1.2; margin: 18px 0 10px; }
.intent-ledger span { color: var(--muted); }

.editorial-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, .62fr); gap: 56px; align-items: start; }
.editorial-main { font-size: 17px; }
.editorial-main h2, .article-body h2 { color: var(--ink); font-size: clamp(27px, 3.6vw, 42px); line-height: 1.18; margin: 0 0 18px; }
.editorial-main h3, .article-body h3 { color: var(--ink); font-size: 22px; margin: 30px 0 10px; }
.editorial-main p, .article-body p { margin: 0 0 18px; }
.pull-quote {
  margin: 28px 0;
  border-left: 4px solid var(--brand);
  padding: 4px 0 4px 22px;
  font-size: 20px;
  color: var(--ink);
}
.side-index {
  position: sticky;
  top: 104px;
  display: grid;
  gap: 10px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,.54);
}
.side-index strong { color: var(--ink); }
.side-index a { text-decoration: none; color: var(--muted); padding: 8px 0; border-bottom: 1px dashed var(--line); }
.side-index a:last-child { border-bottom: 0; }
.side-index a:hover { color: var(--brand-dark); }

.feature-strip { display: grid; grid-template-columns: 1.25fr .75fr; gap: 18px; }
.feature-large, .feature-small {
  position: relative;
  min-height: 420px;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--ink);
}
.feature-small { min-height: 200px; }
.feature-stack { display: grid; gap: 18px; }
.feature-strip img { width: 100%; height: 100%; object-fit: cover; opacity: .82; }
.feature-caption {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 22px;
  color: #fff;
  text-shadow: 0 1px 18px rgba(0,0,0,.45);
}
.feature-caption small { display: block; opacity: .82; margin-bottom: 5px; }
.feature-caption strong { font-size: 23px; line-height: 1.25; }

.path-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.path-row {
  display: grid;
  grid-template-columns: 150px 1fr auto;
  gap: 26px;
  align-items: baseline;
  padding: 25px 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}
.path-row .path-kicker { color: var(--brand-dark); font-size: 13px; font-weight: 700; }
.path-row strong { color: var(--ink); font-size: 22px; }
.path-row span { color: var(--muted); }
.path-row em { color: var(--amber); font-style: normal; font-weight: 700; }

.note-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.note-card { padding: 26px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: rgba(255,255,255,.48); }
.note-card .number { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: #fff; font-size: 12px; margin-bottom: 18px; }
.note-card h3 { color: var(--ink); margin: 0 0 8px; font-size: 20px; }
.note-card p { margin: 0; color: var(--muted); }

.topic-ribbon { display: grid; grid-template-columns: .7fr 1.3fr; gap: 44px; align-items: center; }
.topic-ribbon img { width: 100%; border-radius: var(--radius); aspect-ratio: 4/5; object-fit: cover; }
.topic-ribbon .topic-copy h2 { margin: 0 0 18px; color: var(--ink); font-size: clamp(32px,4vw,52px); line-height: 1.08; }
.topic-ribbon .topic-copy p { color: var(--muted); font-size: 17px; }
.topic-points { display: grid; gap: 12px; margin-top: 26px; }
.topic-points a { text-decoration: none; padding: 16px 0; border-bottom: 1px solid var(--line); color: var(--ink); }
.topic-points a strong { display: block; }
.topic-points a span { color: var(--muted); font-size: 14px; }

.page-hero { padding: 72px 0 42px; }
.page-hero-grid { display: grid; grid-template-columns: 1fr .72fr; gap: 54px; align-items: end; }
.page-hero h1 { color: var(--ink); font-size: clamp(42px, 6vw, 72px); line-height: 1.03; margin: 16px 0 20px; letter-spacing: -.04em; }
.page-hero p { color: var(--muted); font-size: 18px; max-width: 780px; }
.page-hero figure { margin: 0; }
.page-hero figure img { border-radius: var(--radius); aspect-ratio: 5/4; object-fit: cover; }
.page-hero figcaption { color: var(--muted); font-size: 12px; margin-top: 9px; }

.breadcrumbs { width: var(--wrap); margin: 24px auto 0; font-size: 13px; color: var(--muted); }
.breadcrumbs ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.breadcrumbs li + li::before { content: "/"; margin-right: 8px; color: #b2a7ac; }
.breadcrumbs a { text-decoration: none; }
.breadcrumbs a:hover { color: var(--brand-dark); }

.article-shell { width: min(1040px, calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1fr) 240px; gap: 64px; padding: 30px 0 90px; }
.article-body { min-width: 0; font-size: 17px; }
.article-body .intro { font-size: 20px; color: #5d5157; }
.article-body section { scroll-margin-top: 110px; margin-top: 54px; }
.article-body ul, .article-body ol { padding-left: 1.3em; }
.article-body li { margin: 8px 0; }
.article-aside { position: sticky; top: 100px; align-self: start; }
.article-aside .aside-box { border-top: 3px solid var(--brand); padding-top: 16px; }
.article-aside h2 { font-size: 14px; margin: 0 0 12px; color: var(--ink); }
.article-aside a { display: block; text-decoration: none; color: var(--muted); font-size: 13px; padding: 8px 0; }
.article-aside a:hover { color: var(--brand-dark); }

.info-table { width: 100%; border-collapse: collapse; margin: 26px 0; }
.info-table th, .info-table td { text-align: left; vertical-align: top; padding: 14px 16px; border-bottom: 1px solid var(--line); }
.info-table th { width: 170px; color: var(--ink); background: var(--paper-soft); }
.info-table td { color: var(--body); }

.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-question {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
  text-align: left;
  border: 0;
  background: transparent;
  color: var(--ink);
  padding: 22px 0;
  font-weight: 700;
  font-size: 17px;
}
.faq-question::after { content: "+"; color: var(--brand); font-size: 24px; }
.faq-question[aria-expanded="true"]::after { content: "−"; }
.faq-answer { padding: 0 0 24px; color: var(--muted); max-width: 830px; }

.related-band { padding: 64px 0; background: var(--paper-soft); border-top: 1px solid var(--line); }
.related-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.related-link { text-decoration: none; padding: 22px; border-radius: var(--radius-sm); background: rgba(255,255,255,.62); border: 1px solid var(--line); }
.related-link strong { display: block; color: var(--ink); margin-bottom: 7px; }
.related-link span { color: var(--muted); font-size: 13px; }

.search-page { padding: 74px 0 100px; min-height: 65vh; }
.search-page h1 { color: var(--ink); font-size: clamp(36px, 5vw, 60px); margin: 14px 0 18px; }
.search-page .search-form { max-width: 720px; margin-bottom: 40px; }
.result-list { border-top: 1px solid var(--line); }
.result-item { display: grid; grid-template-columns: 1fr auto; gap: 22px; padding: 24px 0; border-bottom: 1px solid var(--line); text-decoration: none; }
.result-item strong { color: var(--ink); font-size: 20px; }
.result-item p { margin: 6px 0 0; color: var(--muted); }
.result-item span { color: var(--amber); align-self: center; font-size: 13px; font-weight: 700; }
.empty-state { padding: 36px; border-radius: var(--radius); background: var(--paper-soft); }

.contact-note { padding: 24px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff; }
.contact-note h2 { margin-top: 0; }
.definition-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 18px; }
.definition-card { padding: 28px; border-radius: var(--radius-sm); border: 1px solid var(--line); background: rgba(255,255,255,.5); }
.definition-card h2 { margin: 0 0 10px; color: var(--ink); font-size: 22px; }
.definition-card p { margin: 0; color: var(--muted); }

.site-footer { background: var(--ink); color: #d9ccd1; padding: 72px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, .75fr); gap: 48px; }
.footer-grid h2 { color: #fff; font-size: 14px; margin: 0 0 16px; }
.footer-grid a { display: block; color: #d6c8ce; text-decoration: none; font-size: 14px; margin: 9px 0; }
.footer-grid a:hover { color: #fff; }
.footer-intro p { max-width: 470px; color: #bcaeb4; }
.footer-brand { font-size: 28px !important; color: #fff !important; font-weight: 700; margin-bottom: 12px !important; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 48px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); font-size: 12px; color: #9f9197; }
.footer-bottom a { color: #cdbfc4; }

.not-found { min-height: 70vh; display: grid; place-items: center; padding: 60px 20px; }
.not-found-inner { width: min(760px,100%); text-align: center; }
.not-found .code { font-size: clamp(80px, 18vw, 180px); color: var(--peach); line-height: .8; font-weight: 800; letter-spacing: -.08em; }
.not-found h1 { color: var(--ink); font-size: 34px; }
.not-found p { color: var(--muted); }
.not-found .cover-actions { justify-content: center; }

@media (max-width: 1080px) {
  .header-shell { grid-template-columns: auto auto auto; justify-content: space-between; }
  .menu-toggle { display: inline-flex; }
  .primary-nav {
    display: none;
    position: absolute;
    top: 76px;
    left: 16px;
    right: 16px;
    padding: 16px;
    border-radius: 18px;
    border: 1px solid var(--line);
    background: var(--paper);
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: stretch;
  }
  .primary-nav.is-open { display: flex; }
  .primary-nav a { padding: 12px 14px; }
  .home-cover { grid-template-columns: 1fr; }
  .cover-visual { min-height: 390px; }
  .page-hero-grid, .editorial-split, .topic-ribbon { grid-template-columns: 1fr; }
  .side-index { position: static; }
  .article-shell { grid-template-columns: 1fr; gap: 30px; }
  .article-aside { position: static; order: -1; }
  .article-aside .aside-box { display: flex; flex-wrap: wrap; gap: 4px 16px; }
  .article-aside h2 { flex-basis: 100%; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-grid > div:last-child { grid-column: 2 / -1; }
}

@media (max-width: 760px) {
  :root { --wrap: min(100% - 28px, 1180px); }
  .header-shell { width: calc(100% - 20px); min-height: 68px; gap: 8px; }
  .brand-mark { min-width: 0; }
  .brand-mark img { width: 38px; height: 38px; }
  .brand-mark small { display: none; }
  .search-trigger { padding-inline: 11px; font-size: 13px; }
  .menu-toggle { padding-inline: 11px; font-size: 13px; }
  .primary-nav { top: 68px; }
  .home-cover { width: calc(100% - 16px); margin-top: 8px; border-radius: 24px; min-height: 0; }
  .cover-copy { padding: 42px 26px; }
  .display-title { font-size: clamp(42px, 15vw, 66px); }
  .cover-visual { min-height: 320px; }
  .section { padding: 66px 0; }
  .section.tight { padding: 52px 0; }
  .intent-ledger { grid-template-columns: 1fr; }
  .intent-ledger a { min-height: 190px; padding: 27px; }
  .feature-strip { grid-template-columns: 1fr; }
  .feature-large { min-height: 350px; }
  .feature-stack { grid-template-columns: 1fr 1fr; }
  .feature-small { min-height: 210px; }
  .path-row { grid-template-columns: 1fr; gap: 7px; }
  .note-grid, .related-links, .definition-grid { grid-template-columns: 1fr; }
  .page-hero { padding-top: 54px; }
  .page-hero figure img { aspect-ratio: 16/10; }
  .article-shell { width: var(--wrap); padding-bottom: 70px; }
  .info-table, .info-table tbody, .info-table tr, .info-table th, .info-table td { display: block; width: 100%; }
  .info-table th { border-bottom: 0; padding-bottom: 5px; }
  .info-table td { padding-top: 6px; }
  .search-panel { padding: 28px 22px; }
  .search-row { grid-template-columns: 1fr; }
  .search-row button { min-height: 46px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-intro { grid-column: 1 / -1; }
  .footer-grid > div:last-child { grid-column: auto; }
}

@media (max-width: 520px) {
  .brand-mark span strong { font-size: 16px; }
  .cover-actions { display: grid; }
  .button-primary, .button-ghost { width: 100%; }
  .feature-stack { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > div:last-child, .footer-intro { grid-column: auto; }
  .footer-bottom { flex-direction: column; }
}