:root {
    --bg: #FFF8FB;
    --surface: #FFFFFF;
    --pink-soft: #FFF0F5;
    --purple-soft: #F6F2FF;
    --gray-soft: #F8F6F7;
    --ink: #33262D;
    --text: #51444B;
    --muted: #7C6C75;
    --quiet: #A09199;
    --pink: #FF5F9F;
    --pink-deep: #D94A82;
    --coral: #FF92AA;
    --purple: #8973E6;
    --purple-deep: #6150AD;
    --border: rgba(255,95,159,0.16);
    --shadow: 0 14px 36px rgba(70,42,57,0.08);
    --shadow-strong: 0 20px 48px rgba(217,74,130,0.15);
    --footer: #30242B;
    --footer-text: #FFEAF2;
    --radius: 24px;
    --shell: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    min-width: 0;
    overflow-x: hidden;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.75;
    padding-top: 116px;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
a, button { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible, summary:focus-visible {
    outline: 3px solid rgba(137,115,230,.42);
    outline-offset: 3px;
}
img { display: block; max-width: 100%; height: auto; }
button { font: inherit; }
.shell { width: min(calc(100% - 40px), var(--shell)); margin: 0 auto; }
.skip-link {
    position: fixed; left: 16px; top: -80px; z-index: 3000;
    padding: 10px 16px; border-radius: 14px; background: var(--ink); color: white;
}
.skip-link:focus { top: 12px; }

.site-header { position: fixed; inset: 0 0 auto 0; z-index: 1000; }
.brand-toolbar { height: 42px; background: rgba(255,248,251,.96); border-bottom: 1px solid var(--border); backdrop-filter: blur(12px); }
.brand-toolbar-inner { height: 42px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.toolbar-brand { display: flex; align-items: baseline; gap: 12px; min-width: 0; }
.toolbar-brand strong { color: var(--ink); font-size: 15px; }
.toolbar-brand span { color: var(--muted); font-size: 12px; white-space: nowrap; }
.toolbar-links { display: flex; align-items: center; gap: 8px; }
.toolbar-links a { min-height: 42px; display: inline-flex; align-items: center; padding: 0 12px; color: var(--muted); font-size: 13px; }
.toolbar-links a[aria-current="page"] { color: var(--pink-deep); font-weight: 700; }

.primary-nav-wrap { height: 74px; background: rgba(255,255,255,.96); border-bottom: 1px solid rgba(70,42,57,.06); box-shadow: 0 8px 24px rgba(70,42,57,.05); backdrop-filter: blur(14px); }
.primary-nav { height: 74px; display: grid; grid-template-columns: auto minmax(0,1fr) auto; align-items: center; gap: 24px; }
.nav-start { display: flex; align-items: center; gap: 16px; min-width: 180px; }
.menu-toggle { min-height: 44px; border: 1px solid var(--border); background: var(--pink-soft); border-radius: 16px; color: var(--ink); padding: 0 14px; display: inline-flex; align-items: center; gap: 9px; cursor: pointer; }
.menu-toggle-lines { width: 18px; display: grid; gap: 4px; pointer-events: none; }
.menu-toggle-lines i { display: block; height: 2px; border-radius: 9px; background: var(--pink-deep); }
.menu-toggle-text { font-size: 14px; font-weight: 700; white-space: nowrap; }
.nav-brand { min-height: 44px; display: inline-flex; align-items: center; min-width: 110px; }
.brand-wordmark { color: var(--ink); font-size: 20px; font-weight: 900; letter-spacing: -.03em; white-space: nowrap; }
.brand-logo-img { max-height: 40px; width: auto; object-fit: contain; }
.desktop-primary-links { min-width: 0; display: flex; justify-content: center; align-items: center; gap: 4px; white-space: nowrap; }
.desktop-primary-links a { min-height: 44px; padding: 0 14px; border-radius: 14px; display: inline-flex; align-items: center; font-size: 14px; color: var(--muted); }
.desktop-primary-links a:hover, .desktop-primary-links a.is-active { background: var(--pink-soft); color: var(--pink-deep); font-weight: 700; }
.nav-app-button, .button-primary { min-height: 44px; padding: 0 20px; border-radius: 16px; display: inline-flex; align-items: center; justify-content: center; white-space: nowrap; color: #fff; font-weight: 800; background: linear-gradient(135deg, #FF92AA 0%, #FF5F9F 52%, #8973E6 100%); box-shadow: 0 10px 24px rgba(217,74,130,.18); }
.button-secondary { min-height: 44px; padding: 0 18px; border-radius: 16px; display: inline-flex; align-items: center; justify-content: center; white-space: nowrap; border: 1px solid var(--border); background: var(--surface); color: var(--pink-deep); font-weight: 800; }
.text-link { color: var(--pink-deep); font-weight: 800; text-decoration: underline; text-decoration-color: rgba(217,74,130,.25); text-underline-offset: 4px; }

main { display: block; }
.page-hero { padding: 64px 0 34px; }
.page-hero-inner { display: grid; grid-template-columns: minmax(0,1fr) minmax(300px,.7fr); gap: 40px; align-items: center; }
.eyebrow { display: inline-flex; min-height: 34px; align-items: center; padding: 0 12px; border-radius: 999px; background: var(--pink-soft); color: var(--pink-deep); font-size: 13px; font-weight: 800; letter-spacing: .04em; }
h1, h2, h3 { color: var(--ink); line-height: 1.28; margin-top: 0; }
h1 { margin: 14px 0 18px; font-size: clamp(34px, 5vw, 64px); letter-spacing: -.045em; }
.page-hero h1 { font-size: clamp(34px, 4.6vw, 56px); }
.lead { max-width: 760px; margin: 0; font-size: 17px; color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.hero-visual { min-height: 290px; border-radius: 28px; background: radial-gradient(circle at 72% 28%, rgba(137,115,230,.18), transparent 28%), linear-gradient(145deg, var(--pink-soft), #fff 56%, var(--purple-soft)); border: 1px solid var(--border); box-shadow: var(--shadow); padding: 26px; position: relative; overflow: hidden; }
.hero-visual::before, .hero-visual::after { content: ""; position: absolute; border-radius: 50%; pointer-events: none; }
.hero-visual::before { width: 150px; height: 150px; right: -34px; top: -22px; background: rgba(255,146,170,.20); }
.hero-visual::after { width: 98px; height: 98px; left: -30px; bottom: -24px; background: rgba(137,115,230,.14); }
.hero-visual-copy { position: relative; z-index: 1; height: 100%; display: flex; flex-direction: column; justify-content: flex-end; }
.hero-visual-copy strong { color: var(--ink); font-size: 25px; }
.hero-visual-copy span { color: var(--muted); }
.hero-visual img { width: 100%; height: 100%; min-height: 290px; max-height: 470px; object-fit: cover; object-position: center; border-radius: 22px; position: relative; z-index: 1; }

.home-stage { padding: 58px 0 44px; }
.home-stage-grid { display: grid; grid-template-columns: minmax(0,1.05fr) minmax(360px,.95fr); gap: 42px; align-items: center; }
.home-stage h1 { max-width: 780px; }
.home-stage .lead { font-size: 18px; }
.hero-media { border-radius: 28px; background: var(--purple-soft); border: 1px solid var(--border); box-shadow: var(--shadow-strong); overflow: hidden; min-height: 480px; display: flex; align-items: stretch; }
.hero-media img { width: 100%; object-fit: cover; object-position: center; }
.hero-media-fallback { width: 100%; padding: 34px; display: flex; flex-direction: column; justify-content: flex-end; background: radial-gradient(circle at 80% 20%, rgba(255,95,159,.24), transparent 30%), radial-gradient(circle at 20% 60%, rgba(137,115,230,.18), transparent 34%), linear-gradient(155deg,#fff 0%,var(--pink-soft) 52%,var(--purple-soft) 100%); }
.hero-media-fallback strong { font-size: clamp(30px,4vw,52px); color: var(--ink); max-width: 480px; line-height: 1.16; }
.hero-media-fallback span { color: var(--muted); margin-top: 14px; }
.hero-notes { margin-top: 18px; display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
.hero-note { background: rgba(255,255,255,.9); border: 1px solid var(--border); border-radius: 20px; padding: 16px; box-shadow: var(--shadow); }
.hero-note strong { display: block; color: var(--ink); margin-bottom: 5px; }
.hero-note span { display: block; color: var(--muted); font-size: 13px; line-height: 1.6; }

.content-section { padding: 54px 0; }
.content-section.soft-pink { background: var(--pink-soft); }
.content-section.soft-purple { background: var(--purple-soft); }
.content-section.soft-gray { background: var(--gray-soft); }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 28px; margin-bottom: 26px; }
.section-head h2 { margin: 0; font-size: clamp(26px,3vw,38px); letter-spacing: -.03em; }
.section-head p { margin: 8px 0 0; color: var(--muted); max-width: 720px; }
.section-kicker { color: var(--pink-deep); font-weight: 800; font-size: 13px; letter-spacing: .06em; }

.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2,minmax(0,1fr)); }
.grid-3 { grid-template-columns: repeat(3,minmax(0,1fr)); }
.grid-4 { grid-template-columns: repeat(4,minmax(0,1fr)); }
.grid-5 { grid-template-columns: repeat(5,minmax(0,1fr)); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.card h3 { margin-bottom: 10px; font-size: 20px; }
.card p { margin: 0 0 14px; color: var(--muted); }
.card .meta { display: block; color: var(--pink-deep); font-size: 13px; font-weight: 800; margin-bottom: 10px; }
.card-list { margin: 12px 0 0; padding-left: 20px; color: var(--muted); }
.card-list li + li { margin-top: 7px; }
.topic-index { display: grid; grid-template-columns: repeat(7,minmax(0,1fr)); gap: 12px; }
.index-card { min-height: 154px; border-radius: 22px; background: var(--surface); border: 1px solid var(--border); padding: 18px; display: flex; flex-direction: column; box-shadow: var(--shadow); }
.index-card strong { color: var(--ink); font-size: 17px; }
.index-card p { color: var(--muted); font-size: 13px; line-height: 1.65; flex: 1; }
.index-card a { color: var(--pink-deep); font-weight: 800; font-size: 13px; }

.timeline { display: grid; gap: 14px; }
.timeline-item { display: grid; grid-template-columns: 120px minmax(0,1fr); gap: 18px; align-items: start; }
.timeline-time { color: var(--purple-deep); font-weight: 900; padding-top: 22px; }
.timeline-card { background: var(--surface); border-radius: var(--radius); border: 1px solid var(--border); padding: 22px; box-shadow: var(--shadow); }
.timeline-card h3 { margin-bottom: 8px; }
.timeline-card p { margin: 0 0 12px; color: var(--muted); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.tag { display: inline-flex; min-height: 30px; align-items: center; padding: 0 10px; border-radius: 999px; background: var(--purple-soft); color: var(--purple-deep); font-size: 12px; font-weight: 700; }
.tag-wall { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0 0; }
.tag-wall span { min-height: 38px; display: inline-flex; align-items: center; padding: 0 14px; background: var(--surface); border: 1px solid var(--border); border-radius: 999px; color: var(--ink); font-weight: 700; }

.split-panel { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 18px; }
.panel { border-radius: 26px; padding: 28px; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); }
.panel.pink { background: linear-gradient(145deg,#fff,var(--pink-soft)); }
.panel.purple { background: linear-gradient(145deg,#fff,var(--purple-soft)); }
.panel h2, .panel h3 { margin-bottom: 12px; }
.panel ul { padding-left: 20px; margin-bottom: 18px; color: var(--muted); }

.prose { max-width: 850px; }
.prose p { margin: 0 0 18px; }
.info-strip { margin-top: 22px; padding: 20px 22px; border-radius: 20px; background: var(--purple-soft); border: 1px solid rgba(137,115,230,.14); color: var(--text); }
.notice { padding: 22px; border-radius: 22px; border: 1px solid var(--border); background: var(--pink-soft); }
.notice strong { color: var(--ink); }
.steps { counter-reset: step; display: grid; gap: 14px; }
.step { position: relative; padding: 22px 22px 22px 72px; border-radius: 22px; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); }
.step::before { counter-increment: step; content: counter(step); position: absolute; left: 22px; top: 22px; width: 34px; height: 34px; border-radius: 50%; background: var(--pink-soft); color: var(--pink-deep); display: grid; place-items: center; font-weight: 900; pointer-events: none; }
.step h3 { margin-bottom: 6px; }
.step p { margin: 0; color: var(--muted); }

.feedback-card { background: var(--surface); border: 1px solid var(--border); border-radius: 22px; padding: 22px; }
.feedback-card p { margin: 0; color: var(--muted); }
.faq-list { display: grid; gap: 12px; }
details { background: var(--surface); border: 1px solid var(--border); border-radius: 20px; padding: 0 20px; box-shadow: 0 8px 22px rgba(70,42,57,.05); }
summary { list-style: none; min-height: 56px; display: flex; align-items: center; cursor: pointer; color: var(--ink); font-weight: 800; padding-right: 26px; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 0; color: var(--pink-deep); font-size: 22px; pointer-events: none; }
details[open] summary::after { content: "−"; }
details p { margin: 0 0 18px; color: var(--muted); }
.related-links { display: flex; flex-wrap: wrap; gap: 10px 16px; }
.related-links a { min-height: 38px; display: inline-flex; align-items: center; color: var(--pink-deep); font-weight: 800; }
.service-tip { margin-top: 24px; padding: 20px 22px; border-left: 4px solid var(--purple); background: var(--purple-soft); border-radius: 0 18px 18px 0; }

.site-footer { margin-top: 56px; background: var(--footer); color: var(--footer-text); padding: 56px 0 26px; }
.footer-grid { display: grid; grid-template-columns: 1.7fr repeat(4,1fr); gap: 34px; }
.footer-brand p { color: rgba(255,234,242,.72); max-width: 360px; }
.footer-logo { min-height: 44px; display: inline-flex; align-items: center; margin-bottom: 10px; }
.footer-logo .brand-wordmark { color: #fff; }
.footer-grid h2 { color: #fff; font-size: 15px; margin-bottom: 12px; }
.footer-grid > div:not(.footer-brand) a { display: flex; min-height: 36px; align-items: center; color: rgba(255,234,242,.74); font-size: 14px; }
.footer-grid a:hover { color: #fff; }
.footer-note { border-top: 1px solid rgba(255,255,255,.1); margin-top: 34px; padding-top: 20px; display: flex; justify-content: space-between; gap: 28px; color: rgba(255,234,242,.62); font-size: 13px; }
.footer-note p { margin: 0; }

.desktop-quickbar { position: fixed; right: 16px; top: 50%; transform: translateY(-50%); z-index: 700; width: 104px; padding: 8px; border-radius: 20px; background: rgba(255,255,255,.94); border: 1px solid var(--border); box-shadow: var(--shadow); display: grid; gap: 6px; }
.desktop-quickbar a { min-height: 44px; border-radius: 14px; display: flex; align-items: center; justify-content: center; text-align: center; color: var(--muted); font-size: 13px; }
.desktop-quickbar a:hover, .desktop-quickbar a.is-active { background: var(--pink-soft); color: var(--pink-deep); font-weight: 800; }

.menu-overlay { position: fixed; inset: 0; z-index: 1400; background: rgba(48,36,43,.38); opacity: 0; visibility: hidden; pointer-events: none; transition: opacity .2s ease, visibility .2s ease; }
.menu-overlay.is-open { opacity: 1; visibility: visible; pointer-events: auto; }
.channel-menu { position: fixed; inset: 0 auto 0 0; z-index: 1500; width: min(460px, 88vw); background: var(--surface); box-shadow: 18px 0 42px rgba(48,36,43,.14); transform: translateX(-101%); visibility: hidden; transition: transform .25s ease, visibility .25s ease; display: flex; flex-direction: column; }
.channel-menu.is-open { transform: translateX(0); visibility: visible; }
.channel-menu-head { height: 74px; flex: 0 0 74px; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border); }
.menu-brand { min-height: 44px; display: inline-flex; align-items: center; }
.menu-close { min-height: 44px; padding: 0 14px; border: 1px solid var(--border); border-radius: 14px; background: var(--pink-soft); color: var(--pink-deep); font-weight: 800; cursor: pointer; }
.channel-menu-scroll { overflow-y: auto; overscroll-behavior: contain; padding: 18px 18px 34px; }
.menu-group + .menu-group { margin-top: 24px; }
.menu-group h2 { font-size: 14px; color: var(--muted); margin: 0 0 8px 6px; }
.menu-group a { display: block; min-height: 62px; border-radius: 18px; padding: 12px 14px; }
.menu-group a:hover { background: var(--pink-soft); }
.menu-group strong { display: block; color: var(--ink); font-size: 15px; }
.menu-group span { display: block; color: var(--muted); font-size: 12px; line-height: 1.55; margin-top: 3px; }

.mobile-bottom-nav { display: none; }

@media (max-width: 1499px) {
    .desktop-quickbar { display: none; }
}
@media (max-width: 1080px) {
    .primary-nav { gap: 14px; }
    .nav-start { min-width: auto; }
    .desktop-primary-links a { padding-inline: 10px; font-size: 13px; }
    .grid-4 { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .grid-5 { grid-template-columns: repeat(3,minmax(0,1fr)); }
    .topic-index { grid-template-columns: repeat(4,minmax(0,1fr)); }
    .footer-grid { grid-template-columns: 1.5fr repeat(2,1fr); }
}
@media (max-width: 820px) {
    body { padding-top: 72px; padding-bottom: calc(72px + env(safe-area-inset-bottom)); }
    .shell { width: min(calc(100% - 32px), var(--shell)); }
    .brand-toolbar, .desktop-primary-links { display: none; }
    .primary-nav-wrap { height: 72px; }
    .primary-nav { height: 72px; grid-template-columns: 1fr auto 1fr; gap: 8px; }
    .nav-start { display: contents; }
    .menu-toggle { grid-column: 1; justify-self: start; padding-inline: 12px; }
    .menu-toggle-text { display: none; }
    .nav-brand { grid-column: 2; justify-self: center; min-width: 0; max-width: 120px; overflow: hidden; }
    .brand-wordmark { font-size: 18px; }
    .nav-app-button { grid-column: 3; justify-self: end; padding-inline: 14px; font-size: 13px; }
    .page-hero { padding: 42px 0 24px; }
    .page-hero-inner, .home-stage-grid { grid-template-columns: 1fr; gap: 26px; }
    .home-stage { padding-top: 42px; }
    .hero-media { min-height: 350px; order: 2; }
    .hero-notes { order: 3; display: flex; overflow-x: auto; padding-bottom: 4px; scroll-snap-type: x proximity; }
    .hero-note { min-width: 240px; scroll-snap-align: start; }
    .section-head { align-items: flex-start; flex-direction: column; gap: 8px; }
    .grid-3, .grid-5 { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .topic-index { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .split-panel, .grid-2 { grid-template-columns: 1fr; }
    .timeline-item { grid-template-columns: 1fr; gap: 4px; }
    .timeline-time { padding-top: 0; }
    .footer-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .footer-brand { grid-column: 1 / -1; }
    .footer-note { flex-direction: column; gap: 10px; }
    .mobile-bottom-nav { position: fixed; left: 0; right: 0; bottom: 0; z-index: 950; min-height: calc(64px + env(safe-area-inset-bottom)); padding-bottom: env(safe-area-inset-bottom); display: grid; grid-template-columns: repeat(5,1fr); background: rgba(255,255,255,.98); border-top: 1px solid var(--border); box-shadow: 0 -10px 30px rgba(70,42,57,.06); }
    .mobile-bottom-nav a { min-height: 64px; display: flex; align-items: center; justify-content: center; color: var(--muted); font-size: 13px; font-weight: 700; }
    .mobile-bottom-nav a.is-active { color: var(--pink-deep); background: var(--pink-soft); }
    .site-footer { margin-bottom: 0; }
}
@media (max-width: 560px) {
    .content-section { padding: 42px 0; }
    h1 { font-size: 38px; }
    .lead { font-size: 16px; }
    .grid-3, .grid-4, .grid-5, .topic-index { grid-template-columns: 1fr; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .hero-actions a { width: 100%; }
    .hero-media { min-height: 300px; }
    .hero-media-fallback { padding: 26px; }
    .hero-media-fallback strong { font-size: 34px; }
    .card, .panel { padding: 20px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-brand { grid-column: auto; }
    .channel-menu { width: 88vw; max-width: 420px; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .001ms !important; animation-duration: .001ms !important; animation-iteration-count: 1 !important; }
}