:root {
  --brand: #D96C8A;
  --brand-soft: #F2B6A0;
  --deep: #2F2730;
  --bg: #FFF9F6;
  --bg-soft: #F8ECE8;
  --text: #342F33;
  --muted: #786E73;
  --accent: #C94F72;
  --white: #FFFFFF;
  --line: rgba(47, 39, 48, .12);
  --shadow: 0 24px 70px rgba(78, 43, 55, .11);
  --radius: 28px;
  --radius-sm: 18px;
  --wrap: min(1180px, calc(100% - 40px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; background: var(--bg); color: var(--text); line-height: 1.7; text-rendering: optimizeLegibility; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { color: inherit; }
.wrap { width: var(--wrap); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: 12px; z-index: 999; padding: 10px 14px; border-radius: 12px; background: var(--deep); color: var(--white); transform: translateY(-160%); transition: transform .2s ease; }
.skip-link:focus { transform: translateY(0); }

.site-header { position: sticky; top: 0; z-index: 50; border-bottom: 1px solid rgba(47,39,48,.08); background: rgba(255,249,246,.94); backdrop-filter: blur(14px); }
.header-inner { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand-lockup { display: inline-flex; align-items: center; gap: 12px; min-width: 0; }
.brand-lockup img { width: 42px; height: 42px; border-radius: 14px; object-fit: cover; box-shadow: 0 10px 28px rgba(201,79,114,.18); }
.brand-copy { display: grid; line-height: 1.15; }
.brand-copy strong { font-size: 1.05rem; letter-spacing: .04em; }
.brand-copy small { margin-top: 4px; color: var(--muted); font-size: .76rem; }
.primary-nav { display: flex; align-items: center; gap: 6px; }
.nav-link { position: relative; padding: 10px 14px; border-radius: 999px; color: var(--muted); font-size: .94rem; font-weight: 600; transition: color .2s ease, background .2s ease; }
.nav-link:hover, .nav-link:focus-visible { color: var(--deep); background: var(--bg-soft); }
.nav-link.is-active { color: var(--accent); background: rgba(217,108,138,.12); }
.menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 14px; background: var(--white); align-items: center; justify-content: center; flex-direction: column; gap: 5px; cursor: pointer; }
.menu-toggle span { width: 18px; height: 2px; border-radius: 999px; background: var(--deep); transition: transform .2s ease, opacity .2s ease; }
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.site-main { overflow: hidden; }
.hero { min-height: 700px; display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(360px, .98fr); align-items: center; gap: 68px; padding-block: 88px 80px; }
.hero-copy { max-width: 680px; }
.kicker, .eyebrow { display: inline-block; color: var(--accent); font-size: .78rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.hero h1, .page-intro h1 { margin: 16px 0 22px; font-size: clamp(2.8rem, 5vw, 5.4rem); line-height: 1.02; letter-spacing: -.045em; color: var(--deep); }
.page-intro h1 { font-size: clamp(2.45rem, 4.2vw, 4.5rem); }
.lead { margin: 0; max-width: 760px; color: var(--muted); font-size: clamp(1.06rem, 1.4vw, 1.25rem); line-height: 1.9; }
.hero-actions, .button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px; border-radius: 14px; border: 1px solid transparent; font-weight: 750; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button.primary { background: var(--accent); color: var(--white); box-shadow: 0 14px 30px rgba(201,79,114,.22); }
.button.secondary { background: var(--deep); color: var(--white); }
.button.ghost { border-color: var(--line); background: var(--white); color: var(--deep); }
.button.light { background: var(--white); color: var(--deep); }
.hero-notes { margin: 38px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.hero-notes div { padding: 18px; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.6); }
.hero-notes dt { color: var(--muted); font-size: .78rem; }
.hero-notes dd { margin: 5px 0 0; font-weight: 750; }
.hero-art { position: relative; margin: 0; }
.hero-art::before { content: ""; position: absolute; width: 280px; height: 280px; right: -50px; top: -50px; border-radius: 50%; background: rgba(242,182,160,.38); filter: blur(12px); }
.hero-art img { position: relative; width: 100%; aspect-ratio: 4/5; object-fit: cover; border-radius: 42px 42px 42px 120px; box-shadow: var(--shadow); }
.hero-art figcaption { position: absolute; left: -36px; bottom: 38px; max-width: 270px; padding: 16px 18px; border: 1px solid rgba(255,255,255,.78); border-radius: 18px; background: rgba(255,249,246,.92); color: var(--muted); font-size: .88rem; box-shadow: 0 18px 38px rgba(47,39,48,.12); }

.section { padding-block: 96px; }
.section-tinted { background: var(--bg-soft); }
.section-dark { background: var(--deep); color: rgba(255,255,255,.82); }
.section-heading { max-width: 720px; margin-bottom: 38px; }
.section-heading.wide-heading { max-width: none; display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .7fr); align-items: end; gap: 48px; }
.section-heading h2, .narrative-copy h2, .story-copy h2, .media-promo h2, .compact-links h2, .editorial-copy h2, .rhythm-copy h2, .film-topic-copy h2, .callout-strip h2 { margin: 10px 0 0; font-size: clamp(2rem, 3.4vw, 3.5rem); line-height: 1.12; letter-spacing: -.03em; color: var(--deep); }
.section-heading p, .narrative-copy p, .story-copy p, .editorial-copy p, .rhythm-copy p, .film-topic-copy p { color: var(--muted); }
.section-dark h2 { color: var(--white); }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.content-card { min-width: 0; border-radius: 24px; overflow: hidden; background: var(--white); border: 1px solid var(--line); box-shadow: 0 12px 30px rgba(47,39,48,.05); }
.card-media { display: block; overflow: hidden; }
.card-media img { width: 100%; aspect-ratio: 16/10; object-fit: cover; transition: transform .35s ease; }
.content-card:hover .card-media img { transform: scale(1.03); }
.card-body { padding: 22px; }
.card-body h3 { margin: 8px 0 10px; font-size: 1.26rem; line-height: 1.35; color: var(--deep); }
.card-body p { margin: 0; color: var(--muted); }
.content-card.feature-large { grid-column: span 2; display: grid; grid-template-columns: 1.15fr .85fr; }
.content-card.feature-large .card-media img { height: 100%; aspect-ratio: auto; }
.content-card.feature-large .card-body { display: flex; flex-direction: column; justify-content: center; padding: 38px; }
.content-card.feature-large .card-body h3 { font-size: 1.8rem; }

.split-layout { display: grid; grid-template-columns: minmax(280px, .75fr) minmax(0, 1.25fr); gap: 80px; align-items: start; }
.sticky-heading { position: sticky; top: 120px; }
.text-list { display: grid; gap: 14px; }
.text-list-item { padding: 28px; border-radius: 22px; background: rgba(255,255,255,.74); border: 1px solid rgba(47,39,48,.08); }
.text-list-item h3 { margin: 8px 0 10px; font-size: 1.35rem; color: var(--deep); }
.text-list-item p { margin: 0; color: var(--muted); }
.text-link { display: inline-block; margin-top: 12px; color: var(--accent); font-weight: 750; border-bottom: 1px solid rgba(201,79,114,.28); }

.narrative-band, .story-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.narrative-band img, .story-visual img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 30px; box-shadow: var(--shadow); }
.narrative-copy p, .story-copy p { font-size: 1.02rem; }
.check-list, .dot-list { margin: 26px 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.check-list li, .dot-list li { position: relative; padding-left: 28px; color: var(--muted); }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--accent); font-weight: 800; }
.dot-list li::before { content: ""; position: absolute; left: 5px; top: .82em; width: 7px; height: 7px; border-radius: 50%; background: var(--brand); }
.media-promo { display: flex; align-items: end; justify-content: space-between; gap: 42px; }
.media-promo p { max-width: 700px; }
.compact-links { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.compact-links article { display: grid; grid-template-columns: 180px 1fr; gap: 26px; padding: 20px; border: 1px solid var(--line); border-radius: 24px; background: var(--white); }
.compact-links img { width: 100%; height: 100%; object-fit: cover; border-radius: 18px; min-height: 180px; }
.compact-links h2 { font-size: 1.65rem; margin-top: 8px; }
.compact-links p { color: var(--muted); }

.faq-list { display: grid; gap: 12px; }
.faq-list details { border: 1px solid var(--line); border-radius: 18px; background: var(--white); overflow: hidden; }
.faq-list summary { list-style: none; cursor: pointer; padding: 20px 58px 20px 22px; font-weight: 750; position: relative; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 22px; top: 17px; font-size: 1.45rem; color: var(--accent); }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: 0; padding: 0 22px 22px; color: var(--muted); }

.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 34px; color: var(--muted); font-size: .9rem; }
.breadcrumb a { color: var(--accent); }
.crumb-sep { opacity: .45; }
.page-intro { padding-block: 62px 72px; }
.page-intro-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, .72fr); gap: 64px; align-items: center; }
.page-intro-grid > img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 34px; box-shadow: var(--shadow); }
.compact-intro .page-intro-grid > img { aspect-ratio: 1/1; }

.media-feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.editorial-stack { display: grid; gap: 80px; }
.editorial-row { display: grid; grid-template-columns: minmax(340px, .95fr) minmax(0, 1.05fr); gap: 64px; align-items: center; }
.editorial-row.reverse { direction: rtl; }
.editorial-row.reverse > * { direction: ltr; }
.editorial-image img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 28px; }
.rhythm-section { display: grid; grid-template-columns: minmax(280px, .8fr) minmax(0, 1.2fr); gap: 70px; align-items: start; }
.step-list { counter-reset: steps; margin: 0; padding: 0; list-style: none; display: grid; gap: 14px; }
.step-list li { display: grid; grid-template-columns: 180px 1fr; gap: 18px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.step-list strong { color: var(--deep); }
.step-list span { color: var(--muted); }
.media-index, .film-summary { display: grid; grid-template-columns: minmax(280px, .8fr) minmax(0, 1.2fr); gap: 70px; align-items: start; }
.index-links { display: grid; gap: 12px; }
.index-links a { display: grid; grid-template-columns: 160px 1fr; gap: 20px; padding: 18px 20px; border-radius: 16px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.09); }
.index-links a:hover { background: rgba(255,255,255,.12); }
.index-links strong { color: var(--white); }
.index-links span { color: rgba(255,255,255,.62); }

.community-grid { display: grid; grid-template-columns: minmax(280px, .7fr) minmax(0, 1.3fr); gap: 70px; align-items: start; }
.community-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.community-cards article { padding: 24px; border-radius: 22px; background: var(--white); border: 1px solid var(--line); }
.community-cards h3 { margin: 8px 0 10px; font-size: 1.23rem; color: var(--deep); }
.community-cards p { margin: 0; color: var(--muted); }
.app-panel-section { background: linear-gradient(180deg, var(--bg) 0 18%, var(--bg-soft) 18% 100%); }
.app-panel { display: grid; grid-template-columns: .9fr 1.1fr; gap: 60px; align-items: start; }
.app-copy { padding: 36px; border-radius: 28px; background: var(--deep); color: rgba(255,255,255,.76); }
.app-copy h2 { margin: 10px 0 18px; font-size: 2.2rem; line-height: 1.16; color: var(--white); }
.app-copy img { margin-top: 28px; border-radius: 20px; aspect-ratio: 4/3; object-fit: cover; }
.app-steps { display: grid; gap: 12px; padding-top: 44px; }
.app-steps article { display: grid; grid-template-columns: 54px 1fr; gap: 18px; padding: 22px; border-radius: 20px; background: var(--white); border: 1px solid var(--line); }
.step-number { width: 44px; height: 44px; border-radius: 14px; display: grid; place-items: center; background: rgba(217,108,138,.12); color: var(--accent); font-weight: 800; }
.app-steps h3 { margin: 0 0 6px; color: var(--deep); }
.app-steps p { margin: 0; color: var(--muted); }
.use-case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.use-case-grid article { padding: 18px; border: 1px solid var(--line); border-radius: 22px; background: var(--white); }
.use-case-grid img { width: 100%; aspect-ratio: 16/10; object-fit: cover; border-radius: 16px; }
.use-case-grid h3 { margin: 18px 4px 8px; }
.use-case-grid p { margin: 0 4px 8px; color: var(--muted); }
.callout-strip { display: flex; align-items: end; justify-content: space-between; gap: 40px; }

.film-topic-stack { display: grid; gap: 78px; }
.film-topic { display: grid; grid-template-columns: minmax(340px, .9fr) minmax(0, 1.1fr); gap: 64px; align-items: center; }
.film-topic.reverse { direction: rtl; }
.film-topic.reverse > * { direction: ltr; }
.film-topic-image img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 30px; box-shadow: var(--shadow); }
.film-topic-copy { max-width: 680px; }
.film-topic-copy p { font-size: 1.01rem; }

.error-panel { min-height: 68vh; padding-block: 90px; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; }
.error-code { font-size: clamp(5rem, 14vw, 10rem); font-weight: 900; line-height: .85; color: rgba(217,108,138,.22); letter-spacing: -.07em; }
.error-panel h1 { margin: 22px 0 10px; font-size: clamp(2rem, 4vw, 3.8rem); color: var(--deep); }
.error-panel p { max-width: 680px; color: var(--muted); }

.site-footer { padding-block: 64px 28px; border-top: 1px solid var(--line); background: #F6E9E6; }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 60px; align-items: start; }
.footer-brand { display: inline-block; font-size: 1.5rem; font-weight: 850; color: var(--deep); }
.footer-grid p { max-width: 640px; color: var(--muted); }
.footer-nav { display: grid; grid-template-columns: repeat(2, minmax(120px, 1fr)); gap: 12px 26px; }
.footer-nav a { font-weight: 650; color: var(--deep); }
.footer-meta { margin-top: 38px; padding-top: 22px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 20px; color: var(--muted); font-size: .88rem; }

:focus-visible { outline: 3px solid rgba(201,79,114,.34); outline-offset: 4px; }

@media (max-width: 980px) {
  :root { --wrap: min(100% - 32px, 900px); }
  .hero { grid-template-columns: 1fr; min-height: auto; gap: 46px; padding-top: 64px; }
  .hero-copy { max-width: 760px; }
  .hero-art { max-width: 680px; justify-self: center; }
  .hero-art img { aspect-ratio: 16/11; border-radius: 36px 36px 36px 88px; }
  .feature-grid, .media-feature-grid { grid-template-columns: 1fr 1fr; }
  .content-card.feature-large { grid-column: 1 / -1; }
  .split-layout, .rhythm-section, .community-grid, .media-index, .film-summary { grid-template-columns: 1fr; gap: 42px; }
  .sticky-heading { position: static; }
  .narrative-band, .story-layout, .editorial-row, .film-topic, .page-intro-grid, .app-panel { grid-template-columns: 1fr; }
  .editorial-row.reverse, .film-topic.reverse { direction: ltr; }
  .page-intro-grid > img { max-width: 760px; }
  .compact-links { grid-template-columns: 1fr; }
  .use-case-grid { grid-template-columns: 1fr 1fr; }
  .app-panel-section { background: var(--bg-soft); }
  .app-steps { padding-top: 0; }
}

@media (max-width: 760px) {
  :root { --wrap: min(100% - 24px, 680px); --radius: 22px; }
  body.menu-open { overflow: hidden; }
  .header-inner { min-height: 68px; }
  .brand-copy small { display: none; }
  .menu-toggle { display: flex; }
  .primary-nav { position: fixed; inset: 68px 12px auto 12px; display: none; padding: 12px; border-radius: 18px; background: var(--white); border: 1px solid var(--line); box-shadow: 0 22px 50px rgba(47,39,48,.18); flex-direction: column; align-items: stretch; }
  .primary-nav.is-open { display: flex; }
  .nav-link { padding: 13px 14px; border-radius: 12px; }
  .hero { padding-block: 48px 58px; gap: 34px; }
  .hero h1, .page-intro h1 { font-size: clamp(2.35rem, 12vw, 4rem); }
  .hero-notes { grid-template-columns: 1fr; }
  .hero-art figcaption { position: static; margin-top: 12px; max-width: none; }
  .section { padding-block: 70px; }
  .section-heading.wide-heading { grid-template-columns: 1fr; gap: 14px; }
  .feature-grid, .media-feature-grid, .community-cards, .use-case-grid { grid-template-columns: 1fr; }
  .content-card.feature-large { display: block; }
  .content-card.feature-large .card-media img { aspect-ratio: 16/10; }
  .content-card.feature-large .card-body { padding: 24px; }
  .content-card.feature-large .card-body h3 { font-size: 1.35rem; }
  .split-layout { gap: 28px; }
  .narrative-band, .story-layout, .editorial-row, .film-topic { gap: 30px; }
  .compact-links article { grid-template-columns: 1fr; }
  .compact-links img { aspect-ratio: 16/9; min-height: 0; }
  .media-promo, .callout-strip { align-items: flex-start; flex-direction: column; }
  .step-list li { grid-template-columns: 1fr; gap: 6px; }
  .index-links a { grid-template-columns: 1fr; gap: 4px; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .footer-nav { grid-template-columns: 1fr 1fr; }
  .footer-meta { flex-direction: column; }
}

@media (max-width: 460px) {
  .brand-lockup img { width: 38px; height: 38px; }
  .hero h1, .page-intro h1 { letter-spacing: -.035em; }
  .hero-actions, .button-row { display: grid; grid-template-columns: 1fr; }
  .button { width: 100%; }
  .section-heading h2, .narrative-copy h2, .story-copy h2, .media-promo h2, .editorial-copy h2, .rhythm-copy h2, .film-topic-copy h2, .callout-strip h2 { font-size: 1.85rem; }
  .footer-nav { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .001ms !important; animation-duration: .001ms !important; animation-iteration-count: 1 !important; }
}

/* Dense but readable thematic components */
.signal-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.signal-card { min-height: 220px; padding: 24px; border-radius: 22px; border: 1px solid var(--line); background: linear-gradient(180deg, rgba(255,255,255,.96), rgba(255,249,246,.82)); }
.signal-card > span { display: inline-flex; padding: 6px 9px; border-radius: 999px; background: rgba(217,108,138,.11); color: var(--accent); font-size: .76rem; font-weight: 750; }
.signal-card h3 { margin: 20px 0 10px; color: var(--deep); font-size: 1.18rem; line-height: 1.35; }
.signal-card p { margin: 0; color: var(--muted); font-size: .94rem; }

.format-table { border: 1px solid var(--line); border-radius: 22px; overflow: hidden; background: var(--white); }
.format-row { display: grid; grid-template-columns: .7fr 1fr 1.35fr 1.55fr; border-top: 1px solid var(--line); }
.format-row:first-child { border-top: 0; }
.format-row > * { padding: 17px 18px; border-left: 1px solid var(--line); }
.format-row > *:first-child { border-left: 0; }
.format-row strong { color: var(--deep); }
.format-row span { color: var(--muted); }
.format-head { background: var(--bg-soft); font-size: .86rem; font-weight: 800; color: var(--deep); }
.format-head span { color: var(--deep); }

.pattern-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.pattern-list article { display: grid; grid-template-columns: 52px 1fr; gap: 18px; align-items: start; padding: 24px; border: 1px solid var(--line); border-radius: 20px; background: var(--white); }
.pattern-index { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 15px; background: var(--deep); color: var(--white); font-size: .84rem; font-weight: 850; }
.pattern-list h3 { margin: 0 0 8px; color: var(--deep); font-size: 1.15rem; }
.pattern-list p { margin: 0; color: var(--muted); }

.visual-note-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.visual-note-grid article { padding: 24px; border-radius: 20px; background: rgba(255,255,255,.78); border: 1px solid rgba(47,39,48,.08); }
.visual-note-grid h3 { margin: 0 0 10px; color: var(--deep); font-size: 1.12rem; }
.visual-note-grid p { margin: 0; color: var(--muted); font-size: .94rem; }

@media (max-width: 980px) {
  .signal-grid, .visual-note-grid { grid-template-columns: 1fr 1fr; }
  .format-table { overflow-x: auto; }
  .format-row { min-width: 860px; }
}

@media (max-width: 760px) {
  .signal-grid, .pattern-list, .visual-note-grid { grid-template-columns: 1fr; }
  .format-table { border-radius: 16px; }
  .format-row { min-width: 760px; font-size: .92rem; }
}

.glossary-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.glossary-grid article { padding: 24px 26px; border-radius: 20px; background: rgba(255,255,255,.78); border: 1px solid rgba(47,39,48,.08); }
.glossary-grid h3 { margin: 0 0 8px; color: var(--deep); font-size: 1.16rem; }
.glossary-grid p { margin: 0 0 10px; color: var(--muted); }
.glossary-grid small { display: block; color: var(--accent); line-height: 1.55; }
@media (max-width: 700px) { .glossary-grid { grid-template-columns: 1fr; } }