:root {
  --paper: #f5f0e6;
  --paper-deep: #ebe2d2;
  --surface: #fffdf8;
  --ink: #302c26;
  --ink-soft: #756f65;
  --vermilion: #a74632;
  --vermilion-dark: #873626;
  --gold: #b0925c;
  --line: #ded6c8;
  --blush: #f6e9e4;
  --green: #71806d;
  --shadow: 0 28px 80px rgba(78, 58, 37, .14);
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", STSong, serif;
  --sans: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; }
body { margin: 0; overflow-x: clip; color: var(--ink); background: var(--paper); font-family: var(--sans); line-height: 1.7; -webkit-font-smoothing: antialiased; }
body::before { content: ""; position: fixed; inset: 0; pointer-events: none; opacity: .38; background-image: radial-gradient(circle at 18% 14%, rgba(176,146,92,.1), transparent 31%), radial-gradient(circle at 85% 28%, rgba(167,70,50,.07), transparent 23%), repeating-linear-gradient(90deg, rgba(48,44,38,.012) 0 1px, transparent 1px 4px); z-index: -1; }
a { color: inherit; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 100; padding: 10px 16px; color: #fff; background: var(--vermilion); border-radius: 8px; transition: top .2s; }
.skip-link:focus { top: 12px; }
:focus-visible { outline: 3px solid rgba(167,70,50,.38); outline-offset: 4px; border-radius: 4px; }
.section-shell { width: min(1200px, calc(100% - 40px)); margin-inline: auto; }

.site-header { position: sticky; top: 0; z-index: 30; border-bottom: 1px solid rgba(222,214,200,.68); background: rgba(245,240,230,.9); backdrop-filter: blur(18px); }
.nav-shell { width: min(1240px, calc(100% - 32px)); min-height: 72px; margin: auto; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; }
.brand img { width: 40px; height: 40px; border-radius: 12px; box-shadow: 0 8px 18px rgba(135,54,38,.16); }
.brand span { display: grid; line-height: 1.1; }
.brand b { font-family: var(--serif); font-size: 20px; letter-spacing: .16em; }
.brand small { margin-top: 5px; color: var(--ink-soft); font-size: 10px; letter-spacing: .15em; }
.menu-button { width: 48px; height: 48px; display: grid; place-content: center; gap: 7px; border: 0; border-radius: 50%; background: transparent; cursor: pointer; }
.menu-button i { display: block; width: 24px; height: 1.5px; background: var(--ink); transition: transform .25s; }
.menu-button[aria-expanded="true"] i:first-of-type { transform: translateY(4.25px) rotate(45deg); }
.menu-button[aria-expanded="true"] i:last-of-type { transform: translateY(-4.25px) rotate(-45deg); }
.site-nav { display: none; position: absolute; left: 16px; right: 16px; top: 64px; padding: 14px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); box-shadow: var(--shadow); }
.site-nav[data-open] { display: grid; }
.site-nav a { min-height: 48px; display: flex; align-items: center; padding: 0 16px; text-decoration: none; border-radius: 12px; }
.site-nav a:hover { background: var(--paper); }
.site-nav .nav-action { justify-content: center; color: #fff; background: var(--vermilion); }

.hero { min-height: calc(100svh - 72px); display: grid; align-items: center; gap: 56px; padding-block: 70px 92px; overflow: clip; }
.eyebrow { margin: 0 0 22px; color: var(--gold); font-size: 11px; font-weight: 700; letter-spacing: .24em; }
.title-lockup { display: grid; grid-template-columns: auto 1fr; align-items: start; gap: 19px; }
.title-seal { padding: 10px 8px; color: var(--vermilion); border: 1px solid rgba(167,70,50,.42); font-family: var(--serif); font-size: 16px; line-height: 1.35; letter-spacing: .18em; }
h1, h2, h3, blockquote { font-family: var(--serif); font-weight: 500; }
h1 { margin: -8px 0 0; font-size: clamp(34px, 9.7vw, 56px); line-height: 1.3; letter-spacing: -.045em; }
h1 span, h1 em { display: block; }
h1 em { margin-top: 18px; color: var(--vermilion); font-size: .7em; font-style: normal; letter-spacing: -.025em; }
.hero-intro { max-width: 600px; margin: 30px 0 0; color: var(--ink-soft); font-size: 16px; line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 23px; margin-top: 34px; }
.button { min-height: 52px; display: inline-flex; align-items: center; justify-content: center; gap: 28px; padding: 0 24px; border-radius: 4px 20px 4px 20px; font-weight: 700; text-decoration: none; transition: transform .2s, background .2s, box-shadow .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #fff; background: var(--vermilion); box-shadow: 0 15px 28px rgba(135,54,38,.18); }
.button-primary:hover { background: var(--vermilion-dark); }
.text-link { min-height: 48px; display: inline-flex; align-items: center; gap: 12px; color: var(--ink-soft); text-decoration: none; border-bottom: 1px solid var(--line); }
.trust-list { display: flex; flex-wrap: wrap; gap: 10px 22px; margin: 30px 0 0; padding: 0; color: var(--ink-soft); font-size: 12px; list-style: none; }
.trust-list li::before { content: ""; display: inline-block; width: 5px; height: 5px; margin: 0 8px 2px 0; border-radius: 50%; background: var(--green); }

.hero-object { position: relative; min-height: 610px; display: grid; place-items: center; }
.paper-orbit { position: absolute; border: 1px solid rgba(176,146,92,.24); border-radius: 45% 55% 52% 48%; transform: rotate(-8deg); }
.orbit-one { width: 92%; height: 74%; }
.orbit-two { width: 70%; height: 92%; transform: rotate(14deg); }
.phone-frame { position: relative; z-index: 2; width: min(298px, 78vw); padding: 10px; border: 1px solid rgba(48,44,38,.22); border-radius: 42px; background: #332c25; box-shadow: 0 42px 90px rgba(67,49,31,.23), inset 0 0 0 1px rgba(255,255,255,.18); transform: rotate(2.5deg); }
.phone-speaker { position: absolute; z-index: 3; top: 17px; left: 50%; width: 74px; height: 20px; border-radius: 0 0 14px 14px; background: #332c25; transform: translateX(-50%); }
.phone-screen { min-height: 570px; overflow: hidden; padding: 29px 15px 14px; border-radius: 33px; background: #f5f0e6; }
.phone-status { display: flex; justify-content: space-between; color: var(--ink-soft); font-size: 10px; }
.daily-card { min-height: 172px; margin-top: 13px; display: flex; flex-direction: column; justify-content: flex-end; padding: 18px; color: #f9efe3; border-radius: 22px 7px 22px 7px; background: linear-gradient(145deg, #a46a50, #543426 74%); box-shadow: 0 15px 28px rgba(70,44,32,.2); }
.daily-card small { color: #d9bd87; }
.daily-card strong { margin-top: 12px; font-family: var(--serif); font-size: 23px; line-height: 1.45; font-weight: 500; }
.daily-card span { margin-top: 13px; font-size: 10px; opacity: .78; }
.phone-section-title { margin: 19px 2px 9px; display: flex; align-items: center; justify-content: space-between; font-size: 12px; }
.phone-section-title b { font-family: var(--serif); font-size: 15px; }
.phone-section-title span { color: var(--ink-soft); font-size: 9px; }
.continue-card { display: grid; grid-template-columns: 32px 1fr auto; align-items: center; gap: 8px; padding: 12px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.continue-card i { width: 31px; height: 31px; display: grid; place-items: center; color: var(--vermilion); border-radius: 50%; background: var(--blush); font-family: var(--serif); font-style: normal; }
.continue-card span { display: grid; }
.continue-card b { font-size: 10px; }
.continue-card small { color: var(--ink-soft); font-size: 8px; }
.continue-card strong { color: var(--vermilion); font-size: 9px; }
.phone-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 7px; margin-top: 14px; }
.phone-grid span { min-height: 67px; display: grid; place-items: center; align-content: center; gap: 4px; border-radius: 12px; background: var(--surface); }
.phone-grid i { color: var(--vermilion); font-family: var(--serif); font-size: 16px; font-style: normal; }
.phone-grid b { font-size: 8px; }
.phone-nav { margin: 21px -15px -14px; min-height: 48px; display: flex; align-items: center; justify-content: space-around; color: var(--ink-soft); border-top: 1px solid var(--line); background: rgba(255,253,248,.84); font-size: 8px; }
.phone-nav b { color: var(--vermilion); }
.object-note { position: absolute; z-index: 3; right: -4px; bottom: 23px; margin: 0; padding: 14px 16px; color: var(--ink-soft); border-left: 1px solid var(--gold); background: rgba(245,240,230,.86); font-family: var(--serif); font-size: 13px; line-height: 1.65; }
.object-note span { display: block; margin-bottom: 4px; color: var(--gold); font-family: var(--sans); font-size: 10px; letter-spacing: .18em; }

.feature-section { padding-block: 92px; background: var(--surface); border-block: 1px solid var(--line); }
.section-heading { display: grid; gap: 12px; margin-bottom: 42px; }
.section-heading .eyebrow { margin: 0; }
.section-heading h2 { margin: 0; font-size: clamp(32px, 8vw, 54px); line-height: 1.33; letter-spacing: -.035em; }
.section-heading > p:last-child { max-width: 590px; margin: 8px 0 0; color: var(--ink-soft); line-height: 1.9; }
.feature-grid { display: grid; gap: 12px; }
.feature-card { position: relative; min-height: 266px; overflow: hidden; padding: 25px; border: 1px solid var(--line); background: #fbf7ef; transition: transform .25s, box-shadow .25s; }
.feature-card:hover { transform: translateY(-4px); box-shadow: 0 22px 50px rgba(78,58,37,.09); }
.feature-card::after { content: ""; position: absolute; right: -55px; bottom: -70px; width: 140px; height: 140px; border: 1px solid rgba(176,146,92,.2); border-radius: 50%; }
.feature-card-wide { background: var(--ink); color: #f8f0e4; }
.wish-card { background: var(--blush); }
.card-index { color: var(--gold); font-size: 10px; letter-spacing: .18em; }
.glyph { width: 49px; height: 49px; margin-top: 23px; display: grid; place-items: center; color: var(--vermilion); border: 1px solid rgba(167,70,50,.28); border-radius: 50%; font-family: var(--serif); font-size: 21px; }
.feature-card-wide .glyph { color: #e2c68e; border-color: rgba(226,198,142,.33); }
.feature-card h3 { margin: 20px 0 7px; font-size: 23px; }
.feature-card p { margin: 0; color: var(--ink-soft); font-size: 14px; line-height: 1.85; }
.feature-card-wide p { color: #c6beb1; }
.card-meta { display: block; margin-top: 23px; color: #d6b977; font-size: 10px; letter-spacing: .12em; }

.principles { padding-block: 100px; }
.principle-quote { position: relative; padding: 4px 0 50px 32px; border-left: 1px solid var(--gold); }
.principle-quote > span { position: absolute; left: 18px; top: -45px; color: rgba(176,146,92,.2); font-family: Georgia, serif; font-size: 130px; line-height: 1; }
blockquote { position: relative; margin: 0; font-size: clamp(27px, 6.7vw, 48px); line-height: 1.6; letter-spacing: -.02em; }
.principle-list { display: grid; border-top: 1px solid var(--line); }
.principle-list article { padding: 25px 0; border-bottom: 1px solid var(--line); }
.principle-list b { color: var(--vermilion); font-family: var(--serif); font-size: 20px; }
.principle-list p { margin: 8px 0 0; color: var(--ink-soft); font-size: 14px; }

.beta-section { overflow: hidden; color: #f8f0e4; background: var(--vermilion-dark); }
.beta-inner { position: relative; padding-block: 90px; }
.beta-inner::after { content: "愿"; position: absolute; right: -35px; bottom: -115px; color: rgba(255,255,255,.045); font-family: var(--serif); font-size: 330px; line-height: 1; }
.beta-inner > * { position: relative; z-index: 1; }
.beta-inner .eyebrow { color: #d9bd87; }
.beta-inner h2 { margin: 0; font-size: clamp(34px, 8.7vw, 58px); line-height: 1.35; }
.beta-inner p:not(.eyebrow) { max-width: 580px; margin: 23px 0 30px; color: #e2d5c8; line-height: 1.9; }
.button-light { color: var(--vermilion-dark); background: #fff9ef; }
.beta-inner small { display: block; margin-top: 19px; color: rgba(255,255,255,.62); font-size: 11px; }

.site-footer { padding-block: 42px; background: #211f1b; color: #e9dfd1; }
.footer-inner > div { display: flex; align-items: center; gap: 12px; }
.footer-inner img { border-radius: 12px; }
.footer-inner p { margin: 0; }
.footer-inner > div p { display: grid; }
.footer-inner > div b { font-family: var(--serif); font-size: 18px; letter-spacing: .13em; }
.footer-inner > div span { margin-top: 3px; color: #9f9689; font-size: 11px; }
.footer-inner nav { display: flex; flex-wrap: wrap; gap: 12px 24px; margin-top: 30px; }
.footer-inner nav a { color: #c9c0b3; font-size: 13px; text-decoration: none; }
.copyright { margin-top: 28px !important; padding-top: 22px; color: #827a6f; border-top: 1px solid rgba(255,255,255,.1); font-size: 11px; }

.reveal { animation: rise .75s both cubic-bezier(.22,.72,.25,1); }
.reveal-delay-1 { animation-delay: .08s; }.reveal-delay-2 { animation-delay: .17s; }.reveal-delay-3 { animation-delay: .26s; }
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }

/* Shared content pages */
.page-main { padding-block: 54px 90px; }
.page-hero { max-width: 780px; padding-bottom: 40px; border-bottom: 1px solid var(--line); }
.page-hero h1 { margin: 0; font-size: clamp(38px, 10vw, 64px); }
.page-hero p { margin: 16px 0 0; color: var(--ink-soft); }
.page-hero .updated { color: var(--gold); font-size: 12px; letter-spacing: .08em; }
.document-layout { display: grid; gap: 36px; margin-top: 38px; }
.document-nav { display: none; }
.document-content { max-width: 820px; }
.legal-section, .help-card { padding: 28px 0; border-bottom: 1px solid var(--line); }
.legal-section:first-child, .help-card:first-child { padding-top: 0; }
.legal-section h2, .help-card h2 { margin: 0 0 12px; font-size: 22px; }
.legal-section p, .help-card p { margin: 0; color: var(--ink-soft); line-height: 1.95; }
.help-grid { display: grid; gap: 12px; }
.help-card { padding: 24px; border: 1px solid var(--line); background: var(--surface); }
.help-card a { color: var(--vermilion); }
.back-home { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 28px; color: var(--ink-soft); text-decoration: none; }

@media (min-width: 680px) {
  .section-shell { width: min(1200px, calc(100% - 80px)); }
  .hero { grid-template-columns: minmax(0,1fr) minmax(330px,.72fr); padding-block: 82px 106px; }
  .hero-object { min-height: 670px; }
  .feature-grid { grid-template-columns: repeat(2,1fr); }
  .feature-card-wide { grid-column: span 2; }
  .principle-list { grid-template-columns: repeat(2,1fr); }
  .principle-list article { padding: 28px 25px; }
  .principle-list article:nth-child(odd) { padding-left: 0; border-right: 1px solid var(--line); }
  .footer-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; }
  .footer-inner nav { margin: 0; }
  .copyright { grid-column: 1/-1; }
  .help-grid { grid-template-columns: repeat(2,1fr); }
}

@media (min-width: 900px) {
  .nav-shell { min-height: 82px; }
  .menu-button { display: none; }
  .site-nav { position: static; display: flex; align-items: center; gap: 4px; padding: 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; }
  .site-nav a { min-height: 44px; padding-inline: 17px; font-size: 14px; }
  .site-nav .nav-action { margin-left: 8px; padding-inline: 22px; border-radius: 3px 15px 3px 15px; }
  .hero { min-height: calc(100vh - 82px); grid-template-columns: minmax(0,1.12fr) minmax(360px,.88fr); gap: 70px; }
  .title-lockup { gap: 27px; }
  .feature-section { padding-block: 120px; }
  .section-heading { grid-template-columns: 1.1fr .9fr; align-items: end; }
  .section-heading .eyebrow { grid-column: 1/-1; }
  .section-heading > p:last-child { justify-self: end; }
  .feature-grid { grid-template-columns: repeat(3,1fr); }
  .feature-card-wide { grid-column: span 2; }
  .principles { display: grid; grid-template-columns: 1.1fr .9fr; gap: 90px; align-items: center; padding-block: 130px; }
  .principle-quote { padding-bottom: 0; }
  .beta-inner { padding-block: 120px; }
  .document-layout { grid-template-columns: 210px minmax(0,820px); gap: 72px; align-items: start; }
  .document-nav { position: sticky; top: 110px; display: grid; gap: 5px; }
  .document-nav a { padding: 8px 12px; color: var(--ink-soft); border-left: 1px solid var(--line); font-size: 12px; text-decoration: none; }
  .document-nav a:hover { color: var(--vermilion); border-color: var(--vermilion); }
}

@media (max-width: 420px) {
  .section-shell { width: min(100% - 30px,1200px); }
  .hero { padding-top: 50px; }
  .title-lockup { gap: 13px; }
  .title-seal { font-size: 14px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .button { width: 100%; }
  .text-link { justify-content: center; }
  .object-note { right: 0; }
}

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