/* finesse · register=brand · A=cool-silver+deep-sage · B=system-sans-display · C=editorial-contact-sheet · D=CSS-intersection-reveal · E=archive-ribbon · SOUL=8 SPECTACLE=4 DENSITY=6 */
:root {
  --bg: #e9ede9;
  --surface: #f6f8f5;
  --surface-2: #dce4dd;
  --ink: #102019;
  --muted: #526159;
  --accent: #1e6849;
  --accent-strong: #125137;
  --accent-soft: #c8ddd0;
  --line: rgba(16, 32, 25, .15);
  --line-strong: rgba(16, 32, 25, .28);
  --light: #f4f8f4;
  --dark: #10251b;
  --shadow: 0 24px 64px rgba(18, 50, 35, .13);
  --font-display: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", Arial, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-signature: cursive;
  --radius: 18px;
  --nav-h: 72px;
  --max: 1180px;
  --z-engine: 0;
  --z-grain: 1;
  --z-content: 2;
  --z-nav: 50;
}

* { box-sizing: border-box; }
html, body { margin: 0; overflow-x: clip; }
html { scroll-behavior: smooth; background: var(--bg); }
body {
  min-width: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--font-body);
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
}
body::before {
  position: fixed;
  inset: 0;
  z-index: var(--z-grain);
  pointer-events: none;
  content: "";
  opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.86' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.34'/%3E%3C/svg%3E");
}
a { color: inherit; text-decoration-thickness: .08em; text-underline-offset: .18em; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
.skip-link { position: fixed; left: 16px; top: 12px; z-index: 100; transform: translateY(-160%); padding: 10px 14px; background: var(--dark); color: var(--light); border-radius: 10px; }
.skip-link:focus { transform: none; }
.site-nav {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  height: var(--nav-h);
  border-bottom: 1px solid var(--line);
  background: rgba(233, 237, 233, .94);
  backdrop-filter: blur(16px);
}
.nav-inner { width: min(calc(100% - 40px), var(--max)); height: 100%; margin: auto; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; min-height: 44px; text-decoration: none; font-weight: 760; letter-spacing: -.025em; white-space: nowrap; }
.brand-mark { display: grid; place-items: center; width: 33px; height: 33px; color: var(--light); background: var(--accent); border-radius: 11px 11px 11px 4px; font-size: 18px; font-weight: 800; }
.nav-links { display: flex; align-items: center; gap: 22px; margin-left: auto; }
.nav-cta { margin-left: auto; }
.nav-links a { min-height: 44px; display: inline-flex; align-items: center; color: var(--muted); text-decoration: none; white-space: nowrap; font-size: 14px; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--ink); }
.button { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; padding: 0 20px; border: 1px solid transparent; border-radius: 14px; background: var(--accent); color: var(--light); font-weight: 720; text-decoration: none; white-space: nowrap; transition: transform .22s ease, background .22s ease; }
.button:hover { background: var(--accent-strong); transform: translateY(-2px); }
.button.secondary { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.menu-button { display: none; width: 44px; height: 44px; margin-left: auto; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--ink); }
.menu-button span { display: block; width: 18px; height: 2px; margin: 4px auto; background: currentColor; }

main { position: relative; z-index: var(--z-content); }
.wrap { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.hero { position: relative; min-height: calc(100dvh - var(--nav-h)); display: grid; align-items: center; padding: 72px 0; }
.hero-grid { display: grid; grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr); align-items: center; gap: clamp(36px, 7vw, 92px); }
.kicker { margin: 0 0 18px; color: var(--accent); font-size: 13px; font-weight: 760; letter-spacing: .16em; text-transform: uppercase; line-height: 1.08; }
h1, h2, h3 { margin: 0; font-family: var(--font-display); overflow-wrap: anywhere; min-width: 0; }
h1 { max-width: 760px; font-size: clamp(50px, 7.4vw, 104px); line-height: .91; letter-spacing: -.072em; font-weight: 780; }
h2 { font-size: clamp(36px, 5vw, 70px); line-height: .94; letter-spacing: -.052em; font-weight: 740; }
h3 { font-size: clamp(22px, 2.3vw, 31px); line-height: 1.05; letter-spacing: -.034em; }
.hero-copy { max-width: 620px; margin: 26px 0 0; color: var(--muted); font-size: clamp(17px, 2vw, 21px); line-height: 1.55; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.hero-visual { min-width: 0; position: relative; min-height: 570px; }
.hero-photo { width: 86%; height: 510px; margin-left: auto; object-fit: cover; border-radius: var(--radius); filter: saturate(.72) contrast(1.03); box-shadow: var(--shadow); }
.shot-float { position: absolute; left: 0; bottom: 2px; width: min(70%, 440px); border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow); transform: rotate(-2.2deg); }
.vertical-word { position: absolute; right: -8px; bottom: 4px; writing-mode: vertical-rl; color: var(--muted); font-size: 12px; letter-spacing: .24em; }

.proof-line { border-block: 1px solid var(--line); }
.proof-inner { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.proof-item { min-width: 0; padding: 28px 24px; border-right: 1px solid var(--line); }
.proof-item:first-child { padding-left: 0; }
.proof-item:last-child { border-right: 0; }
.proof-item strong { display: block; font-size: 17px; }
.proof-item span { color: var(--muted); font-size: 13px; }

.section { padding: clamp(88px, 12vw, 164px) 0; }
.section-head { max-width: 820px; margin-bottom: 54px; }
.section-head p { max-width: 640px; margin: 24px 0 0; color: var(--muted); font-size: 18px; }
.dark-section { color: var(--light); background: var(--dark); }
.dark-section .section-head p, .dark-section .muted { color: rgba(244, 248, 244, .68); }
.feature-spread { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr); gap: 18px; align-items: stretch; }
.feature-main { min-width: 0; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: clip; }
.feature-main img { width: 100%; height: 430px; object-fit: cover; object-position: top; }
.feature-main-copy { padding: 30px; }
.feature-main-copy p, .feature-note p { color: var(--muted); }
.feature-stack { display: grid; gap: 18px; }
.feature-note { min-width: 0; padding: 34px; background: var(--surface-2); border-radius: var(--radius); }
.feature-note.dark { background: var(--accent); color: var(--light); }
.feature-note.dark p { color: rgba(244, 248, 244, .78); }
.feature-note .symbol { display: inline-grid; place-items: center; width: 42px; height: 42px; margin-bottom: 40px; border: 1px solid currentColor; border-radius: 50%; font-size: 20px; }

.privacy-route { position: relative; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 42px; }
.privacy-route::before { position: absolute; top: 27px; left: 11%; right: 11%; height: 1px; background: rgba(244,248,244,.25); content: ""; }
.route-step { position: relative; min-width: 0; padding-top: 72px; }
.route-step::before { position: absolute; top: 18px; left: 0; width: 18px; height: 18px; background: var(--accent-soft); border: 7px solid var(--dark); border-radius: 50%; content: ""; }
.route-step p { color: rgba(244,248,244,.68); }

.photo-ribbon { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .75fr) minmax(0, .75fr); gap: 12px; }
.photo-ribbon figure { min-width: 0; margin: 0; overflow: clip; border-radius: var(--radius); }
.photo-ribbon img { width: 100%; height: 460px; object-fit: cover; filter: saturate(.68); transition: transform .7s cubic-bezier(.16,1,.3,1), filter .3s ease; }
.photo-ribbon figure:nth-child(2) img, .photo-ribbon figure:nth-child(3) img { height: 360px; margin-top: 100px; }
.photo-ribbon figure:hover img { transform: scale(1.025); filter: saturate(.9); }

.manifesto { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .72fr); gap: 90px; align-items: end; }
.manifesto blockquote { margin: 0; font-family: var(--font-display); font-size: clamp(34px, 5vw, 72px); line-height: .99; letter-spacing: -.05em; font-weight: 690; }
.manifesto-copy p { color: var(--muted); }
.signature { display: block; margin-top: 32px; color: var(--accent); font-family: var(--font-signature); font-size: 32px; transform: rotate(-5deg); }

.cta-band { padding: 90px 0; border-block: 1px solid var(--line); }
.cta-band-inner { display: flex; align-items: end; justify-content: space-between; gap: 40px; }
.cta-band h2 { max-width: 780px; }

.page-hero { padding: clamp(74px, 10vw, 130px) 0 80px; border-bottom: 1px solid var(--line); }
.page-hero h1 { max-width: 940px; }
.page-hero p { max-width: 720px; margin: 28px 0 0; color: var(--muted); font-size: 20px; }
.chapter { padding: 84px 0; border-bottom: 1px solid var(--line); }
.chapter-grid { display: grid; grid-template-columns: minmax(0, .38fr) minmax(0, .62fr); gap: clamp(34px, 8vw, 110px); }
.chapter-index { color: var(--accent); font-weight: 760; }
.chapter-body > p:first-child { margin-top: 0; font-size: 20px; }
.chapter-body p { color: var(--muted); }
.chapter-body img { width: 100%; margin-top: 34px; border-radius: var(--radius); border: 1px solid var(--line); }
.media-pair { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 18px; margin-top: 34px; }
.media-pair img { height: 420px; margin: 0; object-fit: cover; }
.list-clean { list-style: none; margin: 28px 0 0; padding: 0; border-top: 1px solid var(--line); }
.list-clean li { display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: 30px; padding: 23px 0; border-bottom: 1px solid var(--line); }
.list-clean strong { color: var(--ink); }

.steps { counter-reset: guide; display: grid; gap: 0; }
.step { counter-increment: guide; display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 28px; padding: 42px 0; border-top: 1px solid var(--line); }
.step::before { content: counter(guide, decimal-leading-zero); color: var(--accent); font-size: 18px; font-weight: 760; }
.step p { max-width: 680px; color: var(--muted); }
.step figure { margin: 26px 0 0; }
.step img { width: 100%; max-width: 780px; border: 1px solid var(--line); border-radius: var(--radius); }

.faq-list { max-width: 900px; }
.faq-item { border-top: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 1px solid var(--line); }
.faq-item summary { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 20px; cursor: pointer; list-style: none; font-size: 20px; font-weight: 700; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--accent); font-size: 28px; font-weight: 400; }
.faq-item[open] summary::after { content: "−"; }
.faq-item p { max-width: 760px; margin: 0 0 28px; color: var(--muted); }
.legal { max-width: 820px; }
.legal h2 { margin: 70px 0 24px; font-size: 34px; line-height: 1.05; }
.legal h3 { margin: 36px 0 12px; font-size: 22px; }
.legal p, .legal li { color: var(--muted); }
.error-page { min-height: calc(100dvh - var(--nav-h)); display: grid; align-items: center; padding: 70px 0; }
.error-code { color: var(--accent); font-size: clamp(96px, 23vw, 300px); line-height: .72; letter-spacing: -.1em; font-weight: 800; }

.site-footer { position: relative; z-index: var(--z-content); padding: 62px 0 28px; color: var(--light); background: var(--dark); }
.footer-top { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, .6fr)); gap: 40px; }
.footer-intro { max-width: 440px; }
.footer-intro p { color: rgba(244,248,244,.62); }
.footer-col strong { display: block; margin-bottom: 14px; }
.footer-col a { min-height: 40px; display: flex; align-items: center; color: rgba(244,248,244,.72); text-decoration: none; white-space: nowrap; }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; margin-top: 50px; padding-top: 22px; border-top: 1px solid rgba(244,248,244,.14); color: rgba(244,248,244,.5); font-size: 13px; }

[data-reveal] { opacity: 1; transform: none; }
.js [data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity .75s cubic-bezier(.16,1,.3,1), transform .75s cubic-bezier(.16,1,.3,1); }
.js [data-reveal].is-visible { opacity: 1; transform: none; }

@media (max-width: 920px) {
  .menu-button { display: block; }
  .nav-links { position: fixed; inset: var(--nav-h) 0 auto; display: none; padding: 18px 20px 26px; background: var(--bg); border-bottom: 1px solid var(--line); flex-direction: column; align-items: stretch; gap: 2px; }
  .nav-links.is-open { display: flex; }
  .nav-links a { justify-content: center; }
  .nav-links .button { margin-top: 8px; }
  .hero-grid, .feature-spread, .manifesto, .chapter-grid { grid-template-columns: minmax(0, 1fr); }
  .hero { padding-top: 54px; }
  .hero-visual { min-height: 500px; }
  .hero-photo { height: 450px; }
  .manifesto { gap: 46px; }
  .privacy-route { gap: 24px; }
  .photo-ribbon { grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); }
  .photo-ribbon figure:nth-child(3) { display: none; }
  .proof-inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .proof-item:nth-child(2) { border-right: 0; }
  .proof-item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 640px) {
  :root { --nav-h: 64px; }
  .wrap, .nav-inner { width: min(calc(100% - 30px), var(--max)); }
  .brand { font-size: 15px; }
  .hero { min-height: auto; padding: 52px 0 72px; }
  h1 { font-size: clamp(46px, 15vw, 66px); line-height: .93; }
  h2 { font-size: clamp(35px, 11vw, 50px); }
  .hero-copy { font-size: 17px; }
  .hero-actions .button { flex: 1 1 140px; }
  .hero-visual { min-height: 390px; margin-top: 8px; }
  .hero-photo { width: 92%; height: 350px; }
  .shot-float { width: 76%; bottom: 0; }
  .vertical-word { display: none; }
  .proof-inner { grid-template-columns: minmax(0, 1fr); }
  .proof-item, .proof-item:first-child { padding: 20px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .proof-item:last-child { border-bottom: 0; }
  .section { padding: 82px 0; }
  .feature-main img { height: 300px; }
  .feature-main-copy, .feature-note { padding: 24px; }
  .feature-note .symbol { margin-bottom: 24px; }
  .privacy-route { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .privacy-route::before { top: 10px; bottom: 10px; left: 8px; right: auto; width: 1px; height: auto; }
  .route-step { padding: 0 0 36px 44px; }
  .route-step::before { top: 2px; left: 0; }
  .photo-ribbon { grid-template-columns: minmax(0, 1fr); }
  .photo-ribbon figure:nth-child(2), .photo-ribbon figure:nth-child(3) { display: none; }
  .photo-ribbon img { height: 420px; }
  .cta-band-inner { align-items: stretch; flex-direction: column; }
  .chapter, .page-hero { padding-block: 64px; }
  .media-pair { grid-template-columns: minmax(0, 1fr); }
  .media-pair img { height: 310px; }
  .list-clean li { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .step { grid-template-columns: 52px minmax(0, 1fr); gap: 12px; }
  .footer-top { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .footer-intro { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .js [data-reveal] { opacity: 1; transform: none; }
  .photo-ribbon figure:hover img, .button:hover { transform: none; }
}

@media (prefers-reduced-transparency: reduce) {
  .site-nav { background: var(--bg); backdrop-filter: none; }
}