:root {
  --orange: #eb7541;
  --orange-soft: #f8c18f;
  --indigo: #282f68;
  --indigo-dark: #171c47;
  --mist: #f4f2eb;
  --paper: #fffdf8;
  --ink: #24253a;
  --muted: #66677a;
  --line: #dcd9d1;
  --shadow: 0 22px 60px rgba(36, 37, 58, .12);
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--mist); font: 16px/1.8 var(--sans); }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 4px; }
img { max-width: 100%; height: auto; display: block; background: #ddd; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; padding: .7rem 1rem; background: var(--paper); color: var(--indigo); }
.skip-link:focus { top: 1rem; }
.site-header { position: sticky; top: 0; z-index: 30; background: rgba(244, 242, 235, .94); border-bottom: 1px solid var(--line); backdrop-filter: blur(16px); }
.nav-shell { width: min(1440px, calc(100% - 3rem)); min-height: 72px; margin: auto; display: flex; align-items: center; gap: 2rem; }
.brand { display: flex; align-items: center; gap: .8rem; margin-right: auto; color: var(--indigo-dark); font: 700 1.05rem/1.2 var(--serif); text-decoration: none; white-space: nowrap; }
.sun-mark { width: 28px; height: 28px; border: 7px solid var(--orange); border-radius: 50%; box-shadow: inset 0 -6px 0 var(--indigo); }
.main-nav { display: flex; align-items: center; gap: 1.05rem; font-size: .84rem; font-weight: 650; }
.main-nav a { text-decoration: none; }
.main-nav a:hover, .main-nav a:focus { color: var(--orange); }
.menu-button { display: none; border: 1px solid var(--indigo); background: transparent; color: var(--indigo); padding: .55rem .8rem; border-radius: 99px; }
main { min-height: 70vh; }
.hero { min-height: 720px; display: grid; grid-template-columns: minmax(0, .92fr) minmax(420px, 1.08fr); align-items: stretch; background: var(--paper); }
.hero-copy { padding: clamp(5rem, 9vw, 9rem) clamp(2rem, 7vw, 8rem); display: flex; flex-direction: column; justify-content: center; }
.kicker, .eyebrow { margin: 0 0 1rem; color: var(--orange); font-size: .76rem; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
h1, h2, h3 { color: var(--indigo-dark); font-family: var(--serif); line-height: 1.18; }
h1 { margin: 0; font-size: clamp(2.7rem, 5.6vw, 6rem); font-weight: 800; letter-spacing: -.035em; }
h2 { margin: 0 0 1rem; font-size: clamp(1.8rem, 3vw, 3.15rem); }
h3 { margin: 0 0 .65rem; font-size: 1.3rem; }
.hero-lead { max-width: 680px; margin: 2rem 0; color: var(--muted); font-size: 1.16rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin: 1.2rem 0; }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 48px; padding: .7rem 1.2rem; border: 1px solid var(--indigo); text-decoration: none; font-weight: 750; }
.button.primary { background: var(--indigo); color: white; }
.button.secondary { background: transparent; color: var(--indigo); }
.button:hover, .button:focus { transform: translateY(-2px); }
.trust-row { display: flex; flex-wrap: wrap; gap: .5rem 1rem; margin: 2rem 0 0; padding: 0; list-style: none; color: var(--muted); font-size: .85rem; }
.trust-row li::before { content: "✓"; color: var(--orange); margin-right: .4rem; font-weight: 900; }
.hero-visual { position: relative; min-height: 560px; overflow: hidden; background: var(--indigo); }
.hero-visual img { width: 100%; height: 100%; object-fit: cover; }
.image-note { position: absolute; right: 1rem; bottom: 1rem; padding: .5rem .7rem; background: rgba(255,253,248,.9); font-size: .72rem; }
.method-strip { display: grid; grid-template-columns: .7fr 1.3fr; gap: 4rem; padding: clamp(4rem, 7vw, 7rem) max(1.5rem, calc((100% - 1180px)/2)); background: var(--indigo-dark); color: #f7f5ef; }
.method-strip h2 { color: white; }
.method-copy { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; font-size: 1.03rem; }
.method-copy p { margin: 0; }
.section-index { margin: 0 0 .6rem; color: var(--orange); font-weight: 900; letter-spacing: .12em; }
.section-shell, .related-section { width: min(1180px, calc(100% - 3rem)); margin: auto; padding: clamp(4rem, 7vw, 7rem) 0; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 2rem; margin-bottom: 2.5rem; }
.section-heading p { max-width: 480px; color: var(--muted); }
.channel-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.channel-card { min-height: 300px; padding: 2rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.4); }
.channel-card:nth-child(2), .channel-card:nth-child(6) { background: var(--paper); }
.channel-card h3 { font-size: 1.8rem; }
.channel-card p:not(.eyebrow) { color: var(--muted); }
.text-link { display: inline-block; color: var(--indigo); font-weight: 800; }
.editorial-feature { display: grid; grid-template-columns: 1fr 1fr; background: var(--paper); }
.feature-visual { min-height: 580px; }
.feature-visual img { width: 100%; height: 100%; object-fit: cover; }
.feature-copy { padding: clamp(3rem, 7vw, 7rem); align-self: center; }
.feature-copy p { color: var(--muted); font-size: 1.04rem; }
.story-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.story-card { min-height: 310px; padding: 2rem; background: var(--paper); border-top: 4px solid var(--orange); display: flex; flex-direction: column; }
.story-card h3 a { text-decoration: none; }
.story-card p:not(.eyebrow) { color: var(--muted); }
.story-card .text-link { margin-top: auto; }
.tool-band { padding: clamp(4rem, 7vw, 7rem) max(1.5rem, calc((100% - 1180px)/2)); display: grid; grid-template-columns: .75fr 1.25fr; gap: 4rem; background: var(--orange-soft); }
.tool-links { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: rgba(40,47,104,.25); }
.tool-links a { padding: 1.5rem; background: rgba(255,253,248,.78); text-decoration: none; display: flex; flex-direction: column; }
.tool-links span { color: var(--muted); font-size: .88rem; }
.faq-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.faq-grid.single { grid-template-columns: 1fr 1fr; }
details { padding: 1.4rem; background: var(--paper); border: 1px solid var(--line); }
summary { color: var(--indigo-dark); font-family: var(--serif); font-size: 1.1rem; font-weight: 800; cursor: pointer; }
.voices { padding: clamp(4rem, 7vw, 7rem) max(1.5rem, calc((100% - 1180px)/2)); display: grid; grid-template-columns: .7fr 1.3fr; gap: 4rem; background: var(--indigo); color: white; }
.voices h2 { color: white; }
.sample-label { color: #d7d9e7; }
.voice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
blockquote { margin: 0; padding: 2rem; background: rgba(255,255,255,.08); font: 1.25rem/1.65 var(--serif); }
cite { display: block; margin-top: 1.2rem; color: var(--orange-soft); font: .8rem/1.5 var(--sans); }
.site-footer { padding: 4rem max(1.5rem, calc((100% - 1180px)/2)) 2rem; background: #101432; color: #d8d9e2; font-size: .85rem; }
.footer-grid { display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 3rem; }
.footer-grid > div { display: flex; flex-direction: column; align-items: start; }
.footer-brand, .footer-label { margin: 0 0 1rem; color: white; font: 700 1.15rem var(--serif); }
.copyright { margin: 3rem 0 0; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,.16); }
.listing-hero, .profile-hero, .tool-hero, .info-hero { padding: clamp(4rem, 8vw, 8rem) max(1.5rem, calc((100% - 1180px)/2)); background: var(--paper); }
.listing-hero h1, .profile-hero h1, .tool-hero h1, .info-hero h1 { max-width: 1050px; font-size: clamp(2.5rem, 5vw, 5rem); }
.listing-hero > p:last-of-type, .profile-hero > p, .tool-hero > p, .info-hero > p { max-width: 780px; color: var(--muted); font-size: 1.08rem; }
.compact { padding-top: 5rem; padding-bottom: 5rem; }
.breadcrumbs { margin-bottom: 3rem; color: var(--muted); font-size: .78rem; }
.breadcrumbs a { color: var(--indigo); }
.breadcrumbs span { margin: 0 .35rem; }
.mini-stat { display: flex; flex-wrap: wrap; gap: .7rem 1.4rem; margin-top: 2rem; align-items: baseline; }
.mini-stat span { color: var(--muted); font-size: .76rem; text-transform: uppercase; letter-spacing: .12em; }
.mini-stat strong { color: var(--orange); font: 800 1.5rem var(--serif); }
.reading-note { padding: 4rem max(1.5rem, calc((100% - 860px)/2)); background: var(--orange-soft); }
.article-layout { width: min(1240px, calc(100% - 3rem)); margin: auto; padding: 5rem 0; display: grid; grid-template-columns: minmax(0, 820px) 300px; gap: 5rem; align-items: start; }
.article-header h1 { font-size: clamp(2.6rem, 5.3vw, 5rem); }
.article-deck { margin: 2rem 0; font: 1.4rem/1.6 var(--serif); color: var(--muted); }
.byline { display: flex; flex-wrap: wrap; gap: .7rem 1.4rem; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .82rem; }
.article-figure { margin: 3rem 0; }
.article-figure img { width: 100%; }
figcaption { margin-top: .6rem; color: var(--muted); font-size: .75rem; }
.article-tags { display: flex; flex-wrap: wrap; gap: .5rem; margin: 2rem 0; }
.article-tags a { padding: .3rem .7rem; border: 1px solid var(--line); color: var(--indigo); font-size: .78rem; text-decoration: none; }
.article-main section { margin: 4rem 0; }
.article-main section p, .article-main li { font-size: 1.06rem; }
.article-main section p { text-align: justify; }
.method-list, .pitfall-list { padding-left: 1.3rem; }
.method-list li, .pitfall-list li { margin: .75rem 0; padding-left: .5rem; }
.example-box { margin: 4rem 0; padding: 2rem; background: var(--paper); border-left: 5px solid var(--orange); box-shadow: var(--shadow); }
.article-aside { position: sticky; top: 100px; display: grid; gap: 1rem; }
.aside-card { padding: 1.5rem; background: var(--paper); border: 1px solid var(--line); }
.aside-card h2 { font-size: 1.3rem; }
.aside-card ul { padding-left: 1.1rem; }
.aside-card a { display: block; margin: .7rem 0; color: var(--indigo); font-weight: 700; }
.related-section { border-top: 1px solid var(--line); }
.tag-cloud { display: grid; grid-template-columns: repeat(3, 1fr); gap: .75rem; }
.tag-cloud a { padding: 1rem 1.2rem; background: var(--paper); display: flex; justify-content: space-between; text-decoration: none; border: 1px solid var(--line); }
.tag-cloud small { color: var(--muted); }
.author-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.author-card { padding: 2rem; background: var(--paper); }
.author-monogram { width: 74px; height: 74px; margin-bottom: 1.5rem; display: grid; place-items: center; border-radius: 50%; background: var(--orange-soft); color: var(--indigo); font: 800 2rem var(--serif); }
.author-monogram.large { width: 108px; height: 108px; font-size: 3rem; }
.notice { padding: 1rem; border-left: 4px solid var(--orange); background: rgba(248,193,143,.24); }
.tool-hero img { max-width: 960px; margin-top: 3rem; }
.steps-section, .checklist-section { width: min(960px, calc(100% - 3rem)); margin: auto; padding: 5rem 0; }
.big-steps, .checklist { margin: 0; padding: 0; list-style: none; }
.big-steps li { display: grid; grid-template-columns: 90px 1fr; gap: 1.5rem; padding: 2rem 0; border-top: 1px solid var(--line); }
.big-steps li > span { color: var(--orange); font: 800 2.4rem var(--serif); }
.map-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.map-card { min-height: 200px; padding: 2rem; background: var(--paper); text-decoration: none; display: grid; grid-template-columns: 50px 1fr; gap: .5rem 1rem; }
.map-card > span { color: var(--orange); font-weight: 900; }
.map-card > strong { font: 800 1.5rem var(--serif); }
.map-card > small { grid-column: 2; color: var(--muted); font-size: .88rem; }
.checklist li { display: grid; grid-template-columns: 34px 1fr; gap: 1rem; padding: 1.5rem; margin-bottom: .7rem; background: var(--paper); }
.check-box { width: 24px; height: 24px; border: 2px solid var(--orange); margin-top: .3rem; }
.prose-page { width: min(820px, calc(100% - 3rem)); margin: auto; padding: 4rem 0 7rem; }
.prose-page section { margin: 3rem 0; }
.prose-page p { font-size: 1.06rem; text-align: justify; }
.not-found { min-height: 75vh; padding: 6rem max(1.5rem, calc((100% - 900px)/2)); display: flex; flex-direction: column; justify-content: center; background: var(--paper); }
.error-code { margin: 0; color: var(--orange-soft); font: 900 clamp(6rem, 20vw, 16rem)/.75 var(--serif); }
.not-found h1 { font-size: clamp(2.4rem, 5vw, 4.5rem); }
.not-found section { margin-top: 3rem; }
@media (max-width: 1320px) {
  .menu-button { display: block; }
  .main-nav { display: none; position: absolute; inset: 72px 1.5rem auto; padding: 1rem; background: var(--paper); border: 1px solid var(--line); box-shadow: var(--shadow); flex-wrap: wrap; }
  .main-nav.open { display: flex; }
}
@media (max-width: 1100px) {
  .hero { grid-template-columns: 1fr; }
  .hero-visual { min-height: 420px; }
  .channel-grid, .story-grid { grid-template-columns: 1fr 1fr; }
  .article-layout { grid-template-columns: 1fr; }
  .article-aside { position: static; grid-template-columns: 1fr 1fr; }
  .author-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .nav-shell { width: min(100% - 2rem, 1440px); }
  .brand span:last-child { max-width: 160px; white-space: normal; }
  .hero-copy { padding: 4rem 1.5rem; }
  h1 { font-size: 2.65rem; }
  .method-strip, .tool-band, .voices, .editorial-feature { grid-template-columns: 1fr; gap: 2rem; }
  .method-copy, .tool-links, .voice-grid, .footer-grid, .faq-grid, .faq-grid.single, .map-grid { grid-template-columns: 1fr; }
  .section-heading { align-items: start; flex-direction: column; }
  .channel-grid, .story-grid, .tag-cloud, .author-grid { grid-template-columns: 1fr; }
  .feature-visual { min-height: 340px; }
  .article-layout { width: min(100% - 2rem, 1240px); padding-top: 3rem; }
  .article-aside { grid-template-columns: 1fr; }
  .big-steps li { grid-template-columns: 58px 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}