:root {
  --ink: #222326;
  --muted: #65666c;
  --accent: #c92746;
  --accent-dark: #ad1937;
  --line: #e3e5e8;
  --pale: #f5f6f8;
  --green: #18745b;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif; color: var(--ink); background: #fff; font-size: 16px; line-height: 1.8; letter-spacing: 0; }
a { color: inherit; text-decoration: none; }
a, summary { -webkit-tap-highlight-color: transparent; }
a:focus-visible, summary:focus-visible { outline: 3px solid var(--green); outline-offset: 5px; }
img { display: block; max-width: 100%; }
p, h1, h2, h3 { margin-top: 0; overflow-wrap: anywhere; }
h1, h2, h3 { line-height: 1.45; }
h2 { font-size: 28px; margin-bottom: 14px; }
h3 { font-size: 20px; }
.container { width: min(1160px, calc(100% - 64px)); margin-inline: auto; }
.skip-link { position: fixed; top: 8px; left: 8px; padding: 8px 16px; z-index: 50; background: #fff; color: var(--accent); transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
.site-header { position: sticky; top: 0; z-index: 20; background: #fff; border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 84px; }
.brand { display: inline-flex; align-items: center; gap: 12px; flex-shrink: 0; font-size: 20px; font-weight: 800; line-height: 1.5; }
.brand-mark { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 6px; background: var(--accent); color: #fff; font-size: 25px; }
.brand small { display: block; font-size: 13px; font-weight: 400; color: var(--muted); }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { position: relative; padding: 26px 0; font-size: 15px; color: var(--muted); white-space: nowrap; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--accent); }
.nav a[aria-current="page"]::after { content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 3px; background: var(--accent); }
.hero { position: relative; overflow: hidden; isolation: isolate; background: #232326; color: #fff; }
.hero-image { position: absolute; z-index: -2; width: 100%; height: 100%; object-fit: cover; object-position: center 42%; }
.hero::before { content: ""; position: absolute; z-index: -1; inset: 0; background: linear-gradient(90deg, rgba(25, 25, 28, .92), rgba(25, 25, 28, .78) 28%, rgba(25, 25, 28, .15) 70%); }
.hero-inner { padding-block: 62px 68px; }
.eyebrow { color: var(--accent); font-size: 14px; font-weight: 700; margin-bottom: 10px; }
.hero .eyebrow { color: #ffd1d9; }
.hero h1 { font-size: 48px; margin-bottom: 6px; }
.hero-subtitle { font-size: 24px; margin-bottom: 18px; max-width: 580px; }
.hero-description { max-width: 480px; color: #e1e1e4; margin-bottom: 26px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 10px 20px; border: 1px solid var(--accent); border-radius: 4px; background: var(--accent); color: #fff; font-size: 15px; font-weight: 700; line-height: 1.6; text-align: center; }
.button:hover { background: var(--accent-dark); border-color: var(--accent-dark); }
.button-outline { background: rgba(25, 25, 28, .35); border-color: #a7a7af; }
.button-outline:hover { background: #343438; border-color: #fff; }
.section { padding-block: 62px; }
.section.compact { padding-block: 32px 38px; }
.pale-band { background: var(--pale); border-block: 1px solid #eceef1; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 24px; }
.section-heading h2 { margin-bottom: 0; }
.text-link { color: var(--accent); font-size: 15px; font-weight: 600; text-decoration: underline; text-underline-offset: 5px; }
.text-link:hover, .prose a:hover, .guide-body a:hover, .faq-list a:hover { color: var(--accent-dark); }
.category-links { display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.category-links a { display: grid; place-items: center; min-height: 56px; padding: 10px 6px; text-align: center; font-size: 16px; font-weight: 600; }
.category-links a + a { border-left: 1px solid var(--line); }
.category-links a:hover { color: var(--accent); background: #fff0f3; }
.collection-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.collection { position: relative; min-width: 0; padding: 24px; border: 1px solid var(--line); border-top: 3px solid var(--accent); border-radius: 6px; background: #fff; transition: border-color .15s; }
.collection:hover { border-color: var(--accent); }
.collection.green { border-top-color: var(--green); }
.collection.violet { border-top-color: #755985; }
.collection-number { display: block; font-size: 32px; font-weight: 800; color: #b32944; line-height: 1.3; margin-bottom: 22px; }
.green .collection-number { color: var(--green); }
.violet .collection-number { color: #755985; }
.collection-label { font-size: 14px; color: var(--muted); }
.collection h3 { margin-block: 8px 12px; }
.collection p { color: var(--muted); margin-bottom: 22px; }
.collection-link { color: var(--accent); font-size: 15px; font-weight: 600; }
.article-layout { display: grid; grid-template-columns: minmax(0, 300px) minmax(0, 1fr); gap: 64px; }
.article-heading h2 { font-size: 26px; }
.muted { color: var(--muted); font-size: 15px; }
.prose p { margin-bottom: 20px; }
.prose p:last-child { margin-bottom: 0; }
.prose a, .faq-list a, .guide-body a, .entry-address p a { color: var(--accent); text-decoration: underline; text-underline-offset: 4px; }
.faq-list { border-top: 1px solid var(--line); min-width: 0; }
.faq-list details { padding-block: 18px; border-bottom: 1px solid var(--line); }
.faq-list summary { cursor: pointer; font-size: 18px; font-weight: 600; padding-right: 8px; }
.faq-list p { margin: 14px 0 2px; color: var(--muted); }
.site-footer { background: #242427; color: #fff; padding-block: 32px; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px; }
.footer-brand { font-size: 20px; font-weight: 700; }
.site-footer p { color: #bdc0c5; margin: 6px 0 0; font-size: 14px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 20px; font-size: 14px; }
.site-footer nav a:hover { text-decoration: underline; }
.copyright { text-align: right; }
.page-heading { background: #242427; color: #fff; padding-block: 24px 44px; }
.page-heading .eyebrow { color: #ffd1d9; margin-top: 24px; }
.page-heading h1 { font-size: 36px; margin-bottom: 10px; }
.page-lead { color: #d9dbdf; font-size: 18px; margin-bottom: 0; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 12px; font-size: 14px; color: #c5c7cc; }
.breadcrumbs a:hover { color: #fff; text-decoration: underline; }
.genre-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 44px; }
.genre { border-top: 1px solid var(--line); padding-block: 28px; scroll-margin-top: 100px; }
.genre-index { display: block; color: var(--accent); font-size: 14px; font-weight: 700; margin-bottom: 10px; }
.genre h3 { margin-bottom: 12px; }
.genre p { color: var(--muted); margin-bottom: 16px; }
.genre p.genre-meta { color: var(--green); font-size: 14px; }
.closing-band { display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.closing-band p { color: var(--muted); margin-bottom: 0; }
.closing-band .button { flex-shrink: 0; }
.entry-address { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.entry-address h2 { font-size: 32px; margin-bottom: 4px; }
.entry-address p { margin-bottom: 0; }
.entry-address .eyebrow { margin-bottom: 10px; }
.contents { display: grid; gap: 12px; margin-top: 24px; border-left: 2px solid var(--line); padding-left: 16px; }
.contents a { font-size: 15px; color: var(--muted); }
.contents a:hover { color: var(--accent); }
.guide-body section { padding-bottom: 28px; margin-bottom: 28px; border-bottom: 1px solid var(--line); scroll-margin-top: 110px; }
.guide-body section:last-child { padding-bottom: 0; margin-bottom: 0; border-bottom: 0; }
.guide-body h2 { font-size: 23px; }
.guide-body p { margin-bottom: 16px; }
.steps { margin-block: 20px 0; padding-left: 26px; }
.steps li { padding-left: 8px; margin-block: 16px; }
.steps li::marker { color: var(--accent); font-weight: 700; }
.steps strong, .steps span { display: block; }
.steps span { color: var(--muted); }
.error-page { min-height: 64vh; display: grid; align-content: center; padding-block: 64px; }
.error-code { color: var(--accent); font-size: 64px; font-weight: 800; line-height: 1; margin-bottom: 18px; }
.error-page h1 { font-size: 30px; }
.error-page .button { width: fit-content; }
@media (max-width: 900px) {
  .nav { gap: 18px; }
  .article-layout { grid-template-columns: minmax(0, 230px) minmax(0, 1fr); gap: 32px; }
  .collection-grid { gap: 16px; }
  .collection { padding: 20px; }
  .hero-subtitle { max-width: 440px; }
  .hero-description { max-width: 360px; }
  .collection h3 { font-size: 18px; }
}
@media (max-width: 700px) {
  html { scroll-padding-top: 24px; }
  .container { width: calc(100% - 36px); }
  .site-header { position: static; }
  .header-inner { flex-direction: column; align-items: stretch; gap: 8px; padding-top: 16px; }
  .brand { font-size: 18px; }
  .brand small { font-size: 12px; }
  .brand-mark { width: 40px; height: 40px; font-size: 24px; }
  .nav { justify-content: space-between; gap: 8px; }
  .nav a { padding-block: 12px; font-size: 14px; }
  .hero-inner { padding-block: 40px 44px; }
  .hero-image { object-position: 67% center; }
  .hero::before { background: linear-gradient(90deg, rgba(25, 25, 28, .94), rgba(25, 25, 28, .73) 64%, rgba(25, 25, 28, .5)); }
  .hero h1 { font-size: 34px; }
  .hero-subtitle { font-size: 20px; max-width: 310px; margin-bottom: 16px; }
  .hero-description { max-width: 310px; }
  .hero-actions { gap: 10px; }
  .hero-actions .button { padding: 10px 14px; font-size: 14px; }
  .section { padding-block: 38px; }
  .section.compact { padding-block: 26px 30px; }
  h2 { font-size: 23px; }
  .section-heading { align-items: start; flex-direction: column; gap: 12px; margin-bottom: 20px; }
  .category-links { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .category-links a { min-height: 50px; font-size: 15px; }
  .category-links a:nth-child(5) { border-left: 0; }
  .category-links a:nth-child(n+5) { border-top: 1px solid var(--line); }
  .collection-grid, .article-layout, .genre-grid { grid-template-columns: 1fr; }
  .collection-grid { gap: 16px; }
  .collection-number { font-size: 26px; margin-bottom: 12px; }
  .collection h3 { font-size: 20px; }
  .collection p { margin-bottom: 16px; }
  .article-layout { gap: 24px; }
  .article-heading h2 { font-size: 24px; }
  .faq-list summary { font-size: 17px; }
  .page-heading { padding-block: 20px 32px; }
  .page-heading h1 { font-size: 29px; }
  .page-lead { font-size: 16px; }
  .genre { scroll-margin-top: 24px; }
  .closing-band, .entry-address { flex-direction: column; align-items: start; gap: 20px; }
  .footer-inner { flex-direction: column; align-items: start; gap: 22px; }
  .copyright { text-align: left; }
  .guide-body section { scroll-margin-top: 24px; }
  .guide-body h2 { font-size: 22px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}