:root {
    --page: #FFF8FB;
    --surface: #FFFFFF;
    --soft-pink: #FFF0F5;
    --soft-purple: #F6F2FF;
    --soft-gray: #F8F6F7;
    --title: #33262D;
    --text: #51444B;
    --muted: #7C6C75;
    --quiet: #A09199;
    --brand: #FF5F9F;
    --brand-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);
    --gradient: linear-gradient(135deg, #FF92AA 0%, #FF5F9F 52%, #8973E6 100%);
    --footer: #30242B;
    --footer-text: #FFEAF2;
    --header-height: 132px;
    --radius-sm: 18px;
    --radius: 24px;
    --radius-lg: 28px;
    --shell: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    color: var(--text);
    background: var(--page);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.72;
    overflow-x: hidden;
    padding-top: var(--header-height);
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
button, input, textarea, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible, summary:focus-visible {
    outline: 3px solid rgba(137, 115, 230, 0.4);
    outline-offset: 3px;
}
.shell { width: min(calc(100% - 40px), var(--shell)); margin: 0 auto; }
.skip-link {
    position: fixed;
    top: 10px;
    left: 12px;
    transform: translateY(-160%);
    z-index: 1000;
    background: var(--surface);
    color: var(--title);
    border-radius: 12px;
    padding: 10px 14px;
    box-shadow: var(--shadow);
}
.skip-link:focus { transform: translateY(0); }
.site-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 120;
    background: rgba(255, 248, 251, 0.97);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(16px);
}
.brand-toolbar { height: 48px; background: var(--soft-pink); border-bottom: 1px solid var(--border); }
.toolbar-inner, .nav-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; gap: 18px; }
.toolbar-brand { display: flex; align-items: baseline; gap: 12px; white-space: nowrap; }
.toolbar-brand strong { color: var(--title); font-size: 15px; }
.toolbar-brand span { color: var(--muted); font-size: 13px; }
.toolbar-links { display: flex; align-items: center; gap: 6px; }
.toolbar-links a { display: grid; place-items: center; min-height: 44px; padding: 0 12px; border-radius: 12px; color: var(--muted); font-size: 14px; }
.toolbar-links a:hover, .toolbar-links a.is-active { color: var(--brand-deep); background: rgba(255,255,255,.75); }
.main-navigation { height: 84px; background: rgba(255,255,255,.94); }
.menu-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    min-height: 46px;
    padding: 0 15px;
    border: 1px solid var(--border);
    border-radius: 15px;
    color: var(--title);
    background: var(--surface);
    cursor: pointer;
    flex: 0 0 auto;
}
.menu-button:hover { box-shadow: var(--shadow); }
.menu-lines { display: grid; gap: 4px; width: 18px; pointer-events: none; }
.menu-lines i { display: block; height: 2px; border-radius: 8px; background: var(--brand-deep); }
.site-logo { display: inline-flex; align-items: center; gap: 9px; min-height: 48px; color: var(--title); flex: 0 0 auto; }
.site-logo img { width: auto; max-height: 46px; }
.logo-mark {
    display: inline-grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 14px;
    background: var(--gradient);
    color: #fff;
    font-weight: 800;
    box-shadow: 0 8px 20px rgba(217, 74, 130, .18);
}
.logo-text { font-size: 20px; font-weight: 800; white-space: nowrap; }
.primary-links { display: flex; align-items: center; justify-content: center; gap: 2px; min-width: 0; flex: 1 1 auto; }
.primary-links a { display: grid; place-items: center; min-height: 46px; padding: 0 14px; border-radius: 14px; color: var(--muted); white-space: nowrap; font-size: 15px; }
.primary-links a:hover, .primary-links a.is-active { color: var(--brand-deep); background: var(--soft-pink); }
.nav-cta, .button-primary, .button-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    border-radius: 15px;
    font-weight: 700;
    padding: 0 20px;
    white-space: nowrap;
    position: relative;
    z-index: 1;
}
.nav-cta, .button-primary { background: var(--gradient); color: #fff; box-shadow: 0 12px 28px rgba(217,74,130,.18); }
.nav-cta:hover, .button-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow-strong); }
.button-secondary { background: var(--surface); color: var(--brand-deep); border: 1px solid var(--border); }
.button-secondary:hover { background: var(--soft-pink); }
.channel-menu {
    position: fixed;
    z-index: 250;
    inset: 0 auto 0 0;
    width: min(460px, 88vw);
    background: var(--surface);
    transform: translateX(-104%);
    visibility: hidden;
    pointer-events: none;
    transition: transform .25s ease, visibility .25s ease;
    box-shadow: 18px 0 60px rgba(51, 38, 45, .16);
    display: flex;
    flex-direction: column;
}
.menu-open .channel-menu { transform: translateX(0); visibility: visible; pointer-events: auto; }
.menu-overlay {
    position: fixed;
    z-index: 240;
    inset: 0;
    background: rgba(48, 36, 43, .42);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .25s ease, visibility .25s ease;
}
.menu-open .menu-overlay { opacity: 1; visibility: visible; pointer-events: auto; }
.menu-heading { min-height: 82px; padding: 16px 20px; display: flex; align-items: center; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--border); }
.menu-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--title); min-height: 48px; }
.menu-brand img { max-height: 46px; width: auto; }
.menu-close { width: 46px; height: 46px; border-radius: 15px; border: 1px solid var(--border); background: var(--soft-pink); color: var(--title); font-size: 30px; line-height: 1; cursor: pointer; }
.menu-scroll { overflow-y: auto; overscroll-behavior: contain; padding: 20px; }
.menu-group + .menu-group { margin-top: 22px; }
.menu-group h2 { margin: 0 0 10px; color: var(--title); font-size: 16px; }
.menu-group a { display: block; padding: 13px 14px; border-radius: 16px; border: 1px solid transparent; }
.menu-group a:hover { background: var(--soft-pink); border-color: var(--border); }
.menu-group strong { display: block; color: var(--title); font-size: 15px; }
.menu-group span { display: block; color: var(--muted); font-size: 13px; line-height: 1.6; margin-top: 3px; }
.site-main { min-height: 60vh; }
.section { padding: 78px 0; }
.section-tight { padding: 56px 0; }
.section-soft { background: var(--soft-pink); }
.section-purple { background: var(--soft-purple); }
.section-white { background: var(--surface); }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 16px; color: var(--brand-deep); font-size: 14px; font-weight: 800; letter-spacing: .08em; }
.eyebrow::before { content: ""; width: 28px; height: 3px; border-radius: 99px; background: var(--gradient); pointer-events: none; }
h1, h2, h3 { color: var(--title); line-height: 1.3; margin-top: 0; }
h1 { font-size: clamp(36px, 6vw, 68px); letter-spacing: -.04em; }
h2 { font-size: clamp(28px, 4vw, 42px); letter-spacing: -.025em; }
h3 { font-size: 21px; }
p { margin-top: 0; }
.section-heading { max-width: 760px; margin-bottom: 34px; }
.section-heading p { color: var(--muted); font-size: 17px; }
.hero { padding: 78px 0 84px; overflow: hidden; background: radial-gradient(circle at 85% 12%, rgba(137,115,230,.15), transparent 30%), radial-gradient(circle at 10% 40%, rgba(255,95,159,.12), transparent 28%); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.03fr) minmax(380px, .97fr); align-items: center; gap: 54px; }
.hero-copy p { max-width: 680px; color: var(--muted); font-size: 18px; }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-stage { position: relative; min-height: 520px; }
.media-frame, .visual-fallback { margin: 0; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-strong); background: var(--surface); }
.media-frame img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.visual-fallback { position: relative; min-height: 460px; background: linear-gradient(145deg, #FFF0F5 0%, #fff 50%, #F6F2FF 100%); border: 1px solid var(--border); }
.visual-fallback.compact { min-height: 300px; }
.visual-fallback.wide { min-height: 330px; }
.visual-orb { position: absolute; border-radius: 50%; filter: blur(1px); pointer-events: none; }
.orb-one { width: 230px; height: 230px; right: -50px; top: -38px; background: rgba(255, 95, 159, .20); }
.orb-two { width: 190px; height: 190px; left: -38px; bottom: -40px; background: rgba(137, 115, 230, .18); }
.visual-copy { position: absolute; inset: auto 28px 28px 28px; z-index: 1; padding: 24px; background: rgba(255,255,255,.86); backdrop-filter: blur(10px); border: 1px solid rgba(255,255,255,.8); border-radius: 20px; }
.visual-copy strong { display: block; color: var(--title); font-size: 24px; }
.visual-copy span { display: block; color: var(--muted); margin-top: 6px; }
.floating-notes { position: absolute; inset: 0; pointer-events: none; }
.floating-note { position: absolute; width: 190px; padding: 16px; background: rgba(255,255,255,.93); border: 1px solid var(--border); border-radius: 18px; box-shadow: var(--shadow); }
.floating-note strong { display: block; color: var(--title); }
.floating-note span { display: block; color: var(--muted); font-size: 13px; line-height: 1.55; margin-top: 4px; }
.floating-note:nth-child(1) { left: -32px; top: 48px; }
.floating-note:nth-child(2) { right: -24px; top: 190px; }
.floating-note:nth-child(3) { left: 24px; bottom: -14px; }
.index-grid, .card-grid, .topic-grid, .review-grid { display: grid; gap: 20px; }
.index-grid { grid-template-columns: repeat(7, minmax(0, 1fr)); }
.card-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.topic-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.review-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.mini-card, .content-card, .topic-card, .review-card, .info-panel, .step-card, .faq-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.mini-card { padding: 20px 18px; min-height: 190px; display: flex; flex-direction: column; }
.mini-card h3 { font-size: 18px; margin-bottom: 9px; }
.mini-card p { color: var(--muted); font-size: 14px; flex: 1; }
.text-link { color: var(--brand-deep); font-weight: 700; display: inline-flex; align-items: center; gap: 6px; min-height: 44px; }
.text-link::after { content: "→"; transition: transform .2s ease; }
.text-link:hover::after { transform: translateX(3px); }
.timeline { position: relative; display: grid; gap: 22px; }
.timeline::before { content: ""; position: absolute; top: 8px; bottom: 8px; left: 81px; width: 2px; background: linear-gradient(var(--brand), var(--purple)); pointer-events: none; }
.timeline-item { display: grid; grid-template-columns: 62px minmax(0, 1fr); gap: 42px; align-items: start; }
.timeline-time { color: var(--brand-deep); font-weight: 800; padding-top: 26px; }
.timeline-content { padding: 24px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.timeline-content h3 { margin-bottom: 8px; }
.timeline-content p { color: var(--muted); }
.tag-row, .tag-cloud { display: flex; flex-wrap: wrap; gap: 9px; }
.tag { display: inline-flex; align-items: center; min-height: 34px; padding: 0 12px; border-radius: 999px; background: var(--soft-pink); color: var(--brand-deep); font-size: 13px; font-weight: 700; }
.content-card { padding: 26px; }
.content-card p, .topic-card p, .review-card p, .info-panel p, .step-card p { color: var(--muted); }
.content-card.accent { background: linear-gradient(145deg, #fff, #FFF0F5); }
.content-card.purple { background: linear-gradient(145deg, #fff, #F6F2FF); }
.topic-card { padding: 26px; min-height: 250px; display: flex; flex-direction: column; }
.topic-card p { flex: 1; }
.topic-card:nth-child(2), .topic-card:nth-child(5) { transform: translateY(16px); }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(340px, .78fr); gap: 42px; align-items: center; }
.split.reverse { grid-template-columns: minmax(340px, .78fr) minmax(0, 1fr); }
.split.reverse .split-media { order: -1; }
.long-copy { font-size: 17px; color: var(--muted); }
.number-list { counter-reset: steps; display: grid; gap: 14px; }
.number-list article { counter-increment: steps; position: relative; padding: 20px 22px 20px 72px; background: var(--surface); border: 1px solid var(--border); border-radius: 20px; }
.number-list article::before { content: counter(steps); position: absolute; left: 20px; top: 19px; width: 34px; height: 34px; display: grid; place-items: center; border-radius: 12px; background: var(--gradient); color: #fff; font-weight: 800; pointer-events: none; }
.number-list h3 { margin-bottom: 5px; font-size: 18px; }
.number-list p { color: var(--muted); margin-bottom: 0; }
.safety-list { display: grid; gap: 14px; }
.safety-list article { padding: 20px; border-left: 4px solid var(--brand); background: var(--surface); border-radius: 0 18px 18px 0; box-shadow: var(--shadow); }
.safety-list h3 { margin-bottom: 5px; font-size: 18px; }
.safety-list p { margin-bottom: 0; color: var(--muted); }
.review-card { padding: 24px; }
.review-card::before { content: "“"; display: block; color: var(--coral); font-size: 42px; line-height: .9; font-weight: 900; pointer-events: none; }
.faq-list { display: grid; gap: 12px; }
details { background: var(--surface); border: 1px solid var(--border); border-radius: 18px; box-shadow: 0 10px 26px rgba(70,42,57,.05); overflow: hidden; }
summary { cursor: pointer; min-height: 58px; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 20px; color: var(--title); font-weight: 800; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--brand-deep); font-size: 24px; pointer-events: none; }
details[open] summary::after { content: "−"; }
details p { padding: 0 20px 20px; color: var(--muted); margin: 0; }
.page-hero { padding: 68px 0 58px; background: radial-gradient(circle at 80% 10%, rgba(137,115,230,.14), transparent 30%), var(--soft-pink); }
.page-hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, .72fr); gap: 44px; align-items: center; }
.page-hero h1 { font-size: clamp(34px, 5vw, 56px); }
.page-hero p { color: var(--muted); font-size: 18px; max-width: 780px; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; color: var(--muted); font-size: 14px; margin-bottom: 14px; }
.breadcrumbs a { color: var(--brand-deep); }
.article-list { display: grid; gap: 18px; }
.article-list article { padding: 26px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.article-list h2, .article-list h3 { margin-bottom: 10px; }
.article-list p:last-child { margin-bottom: 0; }
.info-panel { padding: 28px; }
.notice-box { padding: 24px; background: linear-gradient(135deg, #FFF0F5, #F6F2FF); border: 1px solid var(--border); border-radius: var(--radius); }
.notice-box h2, .notice-box h3 { margin-bottom: 9px; }
.notice-box p:last-child { margin-bottom: 0; }
.link-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.link-grid a { display: flex; align-items: center; justify-content: space-between; min-height: 58px; padding: 0 18px; background: var(--surface); border: 1px solid var(--border); border-radius: 17px; color: var(--title); font-weight: 700; }
.link-grid a::after { content: "→"; color: var(--brand); }
.form-guide { display: grid; gap: 18px; }
.form-guide article { padding: 22px; background: var(--surface); border: 1px solid var(--border); border-radius: 20px; }
.form-guide h3 { margin-bottom: 7px; }
.site-footer { background: var(--footer); color: var(--footer-text); padding: 66px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(4, 1fr); gap: 30px; }
.footer-brand { display: inline-flex; align-items: center; gap: 10px; color: #fff; min-height: 48px; }
.footer-brand img { width: auto; max-height: 44px; }
.footer-intro p { color: rgba(255,234,242,.72); max-width: 360px; }
.footer-column h2 { color: #fff; font-size: 16px; margin-bottom: 14px; }
.footer-column a { display: block; min-height: 38px; color: rgba(255,234,242,.74); font-size: 14px; }
.footer-column a:hover { color: #fff; }
.footer-notice { border-top: 1px solid rgba(255,255,255,.12); margin-top: 34px; padding-top: 24px; display: flex; align-items: flex-start; justify-content: space-between; gap: 30px; color: rgba(255,234,242,.65); font-size: 13px; }
.footer-notice p { margin-bottom: 0; }
.desktop-shortcuts { position: fixed; z-index: 80; right: 18px; top: 50%; transform: translateY(-50%); display: grid; gap: 8px; }
.desktop-shortcuts a { display: grid; place-items: center; min-width: 92px; min-height: 42px; padding: 0 12px; border-radius: 14px; background: rgba(255,255,255,.94); border: 1px solid var(--border); color: var(--muted); font-size: 13px; box-shadow: var(--shadow); }
.desktop-shortcuts a:hover, .desktop-shortcuts a.is-active { color: var(--brand-deep); background: var(--soft-pink); }
.mobile-bottom-nav { display: none; }

@media (max-width: 1180px) {
    .primary-links a { padding: 0 9px; font-size: 14px; }
    .index-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .desktop-shortcuts { display: none; }
    .footer-grid { grid-template-columns: 1.4fr repeat(2, 1fr); }
}

@media (max-width: 920px) {
    :root { --header-height: 76px; }
    body { padding-bottom: calc(74px + env(safe-area-inset-bottom)); }
    .brand-toolbar, .primary-links { display: none; }
    .main-navigation { height: 76px; }
    .nav-inner { gap: 10px; }
    .site-logo { position: absolute; left: 50%; transform: translateX(-50%); max-width: 42%; overflow: hidden; justify-content: center; }
    .site-logo .logo-text { font-size: 18px; }
    .site-logo .logo-mark { width: 36px; height: 36px; flex: 0 0 auto; }
    .menu-button { padding: 0 12px; }
    .menu-button > span:last-child { display: none; }
    .nav-cta { min-height: 44px; padding: 0 14px; margin-left: auto; font-size: 14px; }
    .hero-grid, .page-hero-grid, .split, .split.reverse { grid-template-columns: 1fr; }
    .hero-stage { min-height: auto; }
    .floating-notes { position: static; display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; margin-top: 14px; overflow-x: auto; padding-bottom: 4px; }
    .floating-note, .floating-note:nth-child(n) { position: static; width: auto; min-width: 190px; }
    .index-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .card-grid.three, .topic-grid, .review-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .topic-card:nth-child(n) { transform: none; }
    .link-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .footer-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .footer-intro { grid-column: 1 / -1; }
    .mobile-bottom-nav {
        position: fixed;
        z-index: 110;
        left: 0;
        right: 0;
        bottom: 0;
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        padding: 7px max(8px, env(safe-area-inset-right)) calc(7px + env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left));
        background: rgba(255,255,255,.97);
        border-top: 1px solid var(--border);
        box-shadow: 0 -12px 34px rgba(70,42,57,.08);
        backdrop-filter: blur(14px);
    }
    .mobile-bottom-nav a { min-height: 54px; display: grid; place-items: center; align-content: center; gap: 1px; color: var(--quiet); border-radius: 14px; }
    .mobile-bottom-nav a span { font-size: 18px; line-height: 1; pointer-events: none; }
    .mobile-bottom-nav a b { font-size: 12px; line-height: 1.2; pointer-events: none; }
    .mobile-bottom-nav a.is-active { color: var(--brand-deep); background: var(--soft-pink); }
    .split.reverse .split-media { order: 0; }
}

@media (max-width: 640px) {
    .shell { width: min(calc(100% - 32px), var(--shell)); }
    .section { padding: 58px 0; }
    .section-tight { padding: 44px 0; }
    .hero { padding: 50px 0 58px; }
    h1 { font-size: 40px; }
    h2 { font-size: 30px; }
    .hero-copy p, .page-hero p, .section-heading p, .long-copy { font-size: 16px; }
    .visual-fallback { min-height: 360px; }
    .visual-fallback.compact, .visual-fallback.wide { min-height: 260px; }
    .visual-copy { inset: auto 18px 18px 18px; padding: 18px; }
    .visual-copy strong { font-size: 21px; }
    .floating-notes { grid-template-columns: repeat(3, 210px); }
    .index-grid, .card-grid.three, .card-grid.two, .topic-grid, .review-grid, .link-grid { grid-template-columns: 1fr; }
    .mini-card { min-height: auto; }
    .timeline::before { left: 18px; }
    .timeline-item { grid-template-columns: 1fr; gap: 8px; padding-left: 42px; }
    .timeline-time { padding-top: 0; }
    .content-card, .topic-card, .review-card, .info-panel { padding: 22px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-intro { grid-column: auto; }
    .footer-notice { flex-direction: column; gap: 10px; }
    .site-logo { max-width: 46%; }
    .site-logo .logo-mark { display: none; }
    .site-logo .logo-text { font-size: 17px; }
    .nav-cta { padding: 0 12px; }
    .menu-heading { min-height: 74px; padding: 13px 16px; }
    .menu-scroll { padding: 16px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}