:root {
  --bg: #FFF8FB;
  --surface: #FFFFFF;
  --soft-pink: #FFF0F6;
  --soft-purple: #F7F3FF;
  --soft-gray: #F8F4F6;
  --title: #32262D;
  --text: #51444C;
  --muted: #7C6D76;
  --quiet: #A09199;
  --pink: #FF5D9E;
  --berry: #D94C83;
  --coral: #FF8EAC;
  --purple: #8C76E8;
  --deep-purple: #6753B5;
  --border: rgba(255,93,158,.15);
  --shadow: 0 14px 36px rgba(76,48,66,.08);
  --shadow-strong: 0 18px 46px rgba(217,76,131,.15);
  --gradient: linear-gradient(135deg, #FF8EAC 0%, #FF5D9E 52%, #8C76E8 100%);
  --footer: #30242B;
  --footer-text: #FFEAF2;
  --container: 1200px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--text); background: var(--bg); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; line-height: 1.75; overflow-x: hidden; }
body.menu-open { overflow: hidden; }
a { color: var(--berry); text-decoration: none; }
a:hover { color: var(--deep-purple); }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid rgba(140,118,232,.35); outline-offset: 3px; }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -100px; z-index: 500; background: var(--title); color: white; padding: 10px 16px; border-radius: 12px; }
.skip-link:focus { top: 12px; }
.top-note { background: #fff; border-bottom: 1px solid var(--border); font-size: 13px; }
.top-note-inner { min-height: 34px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.top-note p { margin: 0; color: var(--muted); }
.top-note-links { display: flex; gap: 18px; }
.top-note-links a { color: var(--text); }
.site-header { position: sticky; top: 0; z-index: 120; background: rgba(255,248,251,.96); border-bottom: 1px solid var(--border); backdrop-filter: blur(16px); }
.nav-shell { height: 72px; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; min-width: 90px; align-items: center; color: var(--title); font-weight: 900; font-size: 30px; letter-spacing: -1px; }
.brand img { width: auto; max-height: 36px; object-fit: contain; }
.primary-nav { display: flex; align-items: center; justify-content: center; gap: 8px; flex: 1 1 auto; white-space: nowrap; }
.primary-nav a { min-height: 42px; display: inline-flex; align-items: center; padding: 0 14px; border-radius: 999px; color: var(--text); font-weight: 700; }
.primary-nav a:hover, .primary-nav a.is-active { background: var(--soft-pink); color: var(--berry); }
.nav-actions { display: flex; align-items: center; gap: 10px; white-space: nowrap; }
.button, .channel-button, .mobile-menu-button, .mobile-experience, .text-button { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; border-radius: 999px; border: 0; padding: 0 22px; font-weight: 800; }
.button { color: white; background: var(--gradient); box-shadow: 0 10px 24px rgba(217,76,131,.22); }
.button:hover { color: white; transform: translateY(-1px); box-shadow: var(--shadow-strong); }
.button-secondary { color: var(--berry); background: white; border: 1px solid var(--border); box-shadow: var(--shadow); }
.button-secondary:hover { color: var(--deep-purple); }
.button-compact { min-height: 42px; padding-inline: 18px; }
.channel-button { min-height: 42px; padding-inline: 16px; background: transparent; border: 1px solid var(--border); color: var(--title); }
.mobile-menu-button, .mobile-experience { display: none; }
main { display: block; }
.section { padding: 82px 0; }
.section-tight { padding: 58px 0; }
.section-soft { background: var(--soft-pink); }
.section-purple { background: var(--soft-purple); }
.section-white { background: var(--surface); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 32px; }
.section-heading > div { max-width: 760px; }
.eyebrow { display: inline-block; color: var(--berry); font-size: 13px; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 10px; }
h1, h2, h3 { color: var(--title); line-height: 1.25; margin-top: 0; }
h1 { font-size: clamp(38px, 6vw, 72px); letter-spacing: -.04em; }
h2 { font-size: clamp(28px, 4vw, 42px); letter-spacing: -.025em; }
h3 { font-size: 20px; }
p { margin-top: 0; }
.lead { font-size: clamp(17px, 2vw, 20px); color: var(--muted); max-width: 760px; }
.hero { position: relative; overflow: hidden; padding: 78px 0 70px; }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; pointer-events: none; filter: blur(2px); }
.hero::before { width: 420px; height: 420px; right: -130px; top: -160px; background: rgba(255,142,172,.24); }
.hero::after { width: 320px; height: 320px; left: -170px; bottom: -160px; background: rgba(140,118,232,.14); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0,1.1fr) minmax(250px,.7fr) minmax(240px,.55fr); gap: 34px; align-items: center; }
.hero-copy .brand-kicker { color: var(--pink); font-weight: 900; font-size: 20px; }
.hero-copy p { max-width: 680px; font-size: 17px; }
.hero-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-top: 26px; }
.text-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 800; }
.text-link::after { content: "→"; }
.phone-visual { width: min(100%, 330px); aspect-ratio: .56; margin-inline: auto; border-radius: 46px; padding: 12px; background: #281f25; box-shadow: 0 28px 60px rgba(76,48,66,.2); transform: rotate(2deg); }
.phone-screen { height: 100%; border-radius: 36px; overflow: hidden; background: linear-gradient(180deg,#fff 0%,#fff4f8 100%); padding: 22px 16px; }
.phone-notch { width: 82px; height: 8px; border-radius: 999px; background: #3b2d35; margin: 0 auto 28px; }
.phone-card { background: white; border-radius: 18px; padding: 16px; margin-bottom: 14px; box-shadow: var(--shadow); }
.phone-card strong { color: var(--title); display: block; margin-bottom: 8px; }
.phone-lines span { display: block; height: 8px; background: var(--soft-pink); border-radius: 999px; margin: 8px 0; }
.phone-lines span:nth-child(2) { width: 78%; background: var(--soft-purple); }
.phone-lines span:nth-child(3) { width: 58%; }
.hero-side { display: grid; gap: 18px; }
.hero-mini-card { padding: 24px; background: rgba(255,255,255,.88); border: 1px solid rgba(255,255,255,.9); border-radius: 24px; box-shadow: var(--shadow); }
.hero-mini-card:nth-child(2) { background: linear-gradient(145deg,#fff,#f8f3ff); }
.topic-strip { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(210px, 1fr); gap: 14px; overflow-x: auto; padding: 2px 2px 16px; scroll-snap-type: x proximity; }
.topic-chip { scroll-snap-align: start; padding: 20px; min-height: 150px; border-radius: 22px; background: white; border: 1px solid var(--border); box-shadow: var(--shadow); }
.topic-chip h3 { margin-bottom: 8px; }
.topic-chip p { font-size: 14px; color: var(--muted); margin-bottom: 12px; }
.magazine-grid { display: grid; grid-template-columns: 1.15fr .85fr .85fr; grid-template-rows: auto auto; gap: 18px; }
.story-card { position: relative; overflow: hidden; min-height: 270px; padding: 26px; border-radius: 26px; background: white; box-shadow: var(--shadow); border: 1px solid rgba(255,255,255,.9); display: flex; flex-direction: column; justify-content: end; }
.story-card::before { content: ""; position: absolute; inset: 0 0 auto; height: 44%; background: linear-gradient(135deg,rgba(255,142,172,.34),rgba(140,118,232,.22)); pointer-events: none; }
.story-card > * { position: relative; }
.story-card-main { grid-row: span 2; min-height: 560px; background: linear-gradient(180deg,#fff7fb 0%,#fff 100%); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 14px; }
.tag { display: inline-flex; align-items: center; min-height: 30px; padding: 0 12px; border-radius: 999px; background: var(--soft-pink); color: var(--berry); font-size: 13px; font-weight: 700; }
.cards-3, .cards-4, .cards-6 { display: grid; gap: 18px; }
.cards-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.cards-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
.cards-6 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.info-card { padding: 26px; border-radius: 24px; background: white; border: 1px solid var(--border); box-shadow: var(--shadow); }
.info-card p:last-child { margin-bottom: 0; }
.number-badge { width: 42px; height: 42px; border-radius: 14px; display: inline-flex; align-items: center; justify-content: center; color: white; background: var(--gradient); font-weight: 900; margin-bottom: 16px; }
.timeline { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; }
.timeline article { position: relative; padding: 28px 24px 24px; background: white; border-radius: 22px; box-shadow: var(--shadow); }
.timeline article::before { content: ""; position: absolute; left: 24px; top: 0; width: 70px; height: 4px; border-radius: 999px; background: var(--gradient); }
.diary-layout, .app-showcase, .split-layout, .content-split { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; }
.soft-panel { padding: 36px; border-radius: 30px; background: linear-gradient(145deg,#fff,#fff0f6); box-shadow: var(--shadow); }
.visual-orb { min-height: 420px; border-radius: 32px; background: radial-gradient(circle at 30% 25%,#fff 0 8%,transparent 9%), radial-gradient(circle at 75% 30%,rgba(255,255,255,.8) 0 12%,transparent 13%), linear-gradient(135deg,#ffd9e8,#f0eaff 55%,#fff); position: relative; overflow: hidden; }
.visual-orb::before, .visual-orb::after { content: ""; position: absolute; border-radius: 34% 66% 60% 40%; background: rgba(255,255,255,.72); box-shadow: var(--shadow); }
.visual-orb::before { width: 56%; height: 52%; left: 12%; top: 18%; transform: rotate(-8deg); }
.visual-orb::after { width: 40%; height: 38%; right: 10%; bottom: 12%; transform: rotate(12deg); }
.check-list, .plain-list { list-style: none; padding: 0; margin: 0; }
.check-list li { position: relative; padding-left: 32px; margin: 12px 0; }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 2px; width: 22px; height: 22px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; background: var(--soft-pink); color: var(--berry); font-weight: 900; }
.plain-list li { padding: 12px 0; border-bottom: 1px solid var(--border); }
.quote-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; }
.quote-card { padding: 26px; border-radius: 24px; background: white; box-shadow: var(--shadow); }
.quote-card::before { content: "“"; display: block; color: var(--coral); font-size: 44px; line-height: .8; font-weight: 900; }
.faq-list { display: grid; gap: 12px; }
details { background: white; border: 1px solid var(--border); border-radius: 18px; padding: 0 20px; box-shadow: 0 8px 22px rgba(76,48,66,.05); }
summary { min-height: 62px; display: flex; align-items: center; justify-content: space-between; gap: 18px; cursor: pointer; color: var(--title); font-weight: 800; }
summary::after { content: "+"; color: var(--pink); font-size: 22px; }
details[open] summary::after { content: "−"; }
details p { padding-bottom: 18px; color: var(--muted); }
.page-hero { padding: 70px 0 54px; background: linear-gradient(180deg,#fff 0%,#fff8fb 100%); border-bottom: 1px solid var(--border); }
.page-hero-grid { display: grid; grid-template-columns: minmax(0,1fr) 310px; gap: 40px; align-items: center; }
.page-hero h1 { font-size: clamp(40px,6vw,64px); margin-bottom: 18px; }
.page-visual { min-height: 260px; border-radius: 32px; background: linear-gradient(135deg,#ffdce9,#f2ecff); box-shadow: var(--shadow-strong); position: relative; overflow: hidden; }
.page-visual::before { content: "17c"; position: absolute; right: 22px; bottom: 8px; font-size: 78px; font-weight: 900; color: rgba(255,255,255,.7); }
.page-visual::after { content: ""; position: absolute; width: 160px; height: 160px; border-radius: 40% 60% 58% 42%; background: rgba(255,255,255,.8); left: 34px; top: 44px; transform: rotate(-12deg); box-shadow: 70px 55px 0 rgba(255,255,255,.45); }
.content-grid { display: grid; grid-template-columns: minmax(0,1fr) 300px; gap: 36px; align-items: start; }
.article-flow { display: grid; gap: 22px; }
.article-block { padding: 30px; border-radius: 24px; background: white; border: 1px solid var(--border); box-shadow: var(--shadow); }
.article-block:nth-child(even) { background: linear-gradient(145deg,#fff,#fff8fb); }
.article-block h2 { font-size: 28px; }
.side-index { position: sticky; top: 126px; padding: 24px; border-radius: 24px; background: var(--soft-purple); }
.side-index h2 { font-size: 20px; }
.side-index a { display: block; padding: 10px 0; border-bottom: 1px solid rgba(103,83,181,.12); color: var(--text); }
.step-grid { counter-reset: steps; display: grid; gap: 18px; }
.step-item { counter-increment: steps; padding: 26px 26px 26px 82px; background: white; border-radius: 22px; box-shadow: var(--shadow); position: relative; }
.step-item::before { content: counter(steps, decimal-leading-zero); position: absolute; left: 24px; top: 24px; color: var(--pink); font-size: 24px; font-weight: 900; }
.notice-box { padding: 26px; border-radius: 22px; background: var(--soft-pink); border: 1px solid var(--border); }
.notice-box strong { color: var(--title); }
.related-links { display: flex; flex-wrap: wrap; gap: 12px; }
.related-links a { min-height: 44px; display: inline-flex; align-items: center; padding: 0 16px; border: 1px solid var(--border); background: white; border-radius: 999px; font-weight: 800; }
.service-note { padding: 34px; border-radius: 28px; background: linear-gradient(135deg,#fff0f6,#f7f3ff); text-align: center; }
.site-footer { background: var(--footer); color: var(--footer-text); padding: 68px 0 110px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(4,1fr); gap: 30px; }
.site-footer h2 { color: white; font-size: 17px; margin-bottom: 16px; }
.site-footer a { display: block; color: rgba(255,234,242,.82); padding: 5px 0; }
.site-footer a:hover { color: white; }
.footer-brand h2 { font-size: 34px; }
.footer-brand p { color: rgba(255,234,242,.74); max-width: 280px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 36px; padding-top: 24px; display: flex; justify-content: space-between; gap: 28px; color: rgba(255,234,242,.66); font-size: 13px; }
.menu-overlay { position: fixed; inset: 0; background: rgba(48,36,43,.34); z-index: 140; opacity: 0; visibility: hidden; pointer-events: none; transition: opacity .24s ease, visibility .24s ease; }
body.menu-open .menu-overlay { opacity: 1; visibility: visible; pointer-events: auto; }
.desktop-channel-panel { position: fixed; top: 106px; left: 0; right: 0; z-index: 160; transform: translateY(-18px); opacity: 0; visibility: hidden; pointer-events: none; transition: .24s ease; }
body.desktop-menu-open .desktop-channel-panel { transform: translateY(0); opacity: 1; visibility: visible; pointer-events: auto; }
.panel-inner { background: white; border-radius: 0 0 28px 28px; padding: 28px 30px 34px; box-shadow: var(--shadow-strong); max-height: calc(100vh - 126px); overflow: auto; }
.panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 20px; }
.panel-heading h2 { margin-bottom: 0; font-size: 30px; }
.panel-close, .mobile-panel-head button { min-height: 44px; border: 1px solid var(--border); border-radius: 999px; background: white; color: var(--title); padding: 0 16px; }
.channel-groups { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 24px; }
.channel-groups h3 { font-size: 16px; color: var(--berry); }
.channel-groups a { display: block; padding: 12px 0; border-bottom: 1px solid var(--border); color: var(--text); }
.channel-groups strong, .channel-groups span { display: block; }
.channel-groups span { color: var(--muted); font-size: 13px; }
.mobile-channel-panel { display: none; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1060px) {
  .nav-shell { gap: 14px; }
  .primary-nav a { padding-inline: 10px; }
  .hero-grid { grid-template-columns: 1fr .72fr; }
  .hero-side { grid-column: 1 / -1; grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1.2fr repeat(2,1fr); }
  .footer-grid > :nth-child(4), .footer-grid > :nth-child(5) { margin-top: 12px; }
}
@media (max-width: 820px) {
  .container { width: min(calc(100% - 32px), var(--container)); }
  .top-note-inner { min-height: 32px; }
  .top-community { display: none; }
  .nav-shell { height: 62px; justify-content: space-between; }
  .brand { min-width: auto; justify-content: center; font-size: 26px; }
  .primary-nav, .nav-actions { display: none; }
  .mobile-menu-button, .mobile-experience { display: inline-flex; min-width: 84px; min-height: 44px; padding: 0 12px; font-size: 14px; }
  .mobile-menu-button { color: var(--title); background: white; border: 1px solid var(--border); }
  .mobile-experience { color: white; background: var(--gradient); }
  .section { padding: 62px 0; }
  .section-tight { padding: 48px 0; }
  .section-heading { align-items: start; flex-direction: column; margin-bottom: 24px; }
  .hero { padding: 54px 0 46px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { order: 1; }
  .phone-visual { order: 2; max-width: 285px; }
  .hero-side { order: 3; grid-template-columns: minmax(250px,1fr) minmax(250px,1fr); overflow-x: auto; padding-bottom: 12px; }
  .magazine-grid { grid-template-columns: 1fr; grid-template-rows: auto; }
  .story-card-main { grid-row: auto; min-height: 420px; }
  .cards-3, .cards-4, .cards-6, .timeline, .quote-grid { grid-template-columns: 1fr; }
  .diary-layout, .app-showcase, .split-layout, .content-split, .page-hero-grid, .content-grid { grid-template-columns: 1fr; }
  .page-visual { min-height: 220px; }
  .side-index { position: static; order: -1; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; }
  .site-footer { padding-bottom: 116px; }
  .desktop-channel-panel { display: none; }
  .mobile-channel-panel { display: block; position: fixed; left: 0; right: 0; bottom: 0; z-index: 170; max-height: 85vh; overflow: auto; background: white; border-radius: 26px 26px 0 0; padding: 10px 16px calc(20px + env(safe-area-inset-bottom)); transform: translateY(105%); visibility: hidden; pointer-events: none; transition: transform .28s ease, visibility .28s ease; }
  body.mobile-menu-open .mobile-channel-panel { transform: translateY(0); visibility: visible; pointer-events: auto; }
  .sheet-handle { width: 48px; height: 5px; border-radius: 999px; background: #ddcfd7; margin: 0 auto 12px; }
  .mobile-panel-head { position: sticky; top: 0; background: white; z-index: 2; padding: 6px 0 14px; display: flex; align-items: center; justify-content: space-between; }
  .mobile-panel-head strong { font-size: 20px; color: var(--title); }
  .mobile-channel-links { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
  .mobile-channel-links a { min-height: 48px; display: flex; align-items: center; padding: 0 14px; border-radius: 14px; background: var(--soft-gray); color: var(--title); font-weight: 800; }
  .mobile-bottom-nav { display: grid; position: fixed; left: 0; right: 0; bottom: 0; z-index: 110; grid-template-columns: repeat(5,1fr); min-height: calc(66px + env(safe-area-inset-bottom)); padding: 6px 8px env(safe-area-inset-bottom); background: rgba(255,255,255,.97); border-top: 1px solid var(--border); box-shadow: 0 -8px 24px rgba(76,48,66,.08); }
  .mobile-bottom-nav a { min-height: 54px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1px; color: var(--muted); font-size: 12px; font-weight: 800; }
  .mobile-bottom-nav a span { font-size: 20px; line-height: 1; }
  .mobile-bottom-nav a.is-active { color: var(--pink); }
}
@media (max-width: 560px) {
  h1 { font-size: 42px; }
  .hero-actions .button, .hero-actions .button-secondary { width: 100%; }
  .soft-panel, .article-block { padding: 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
  .mobile-channel-links { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}