:root {
    --bg: #FFF7FB;
    --surface: #FFFFFF;
    --surface-pink: #FFF0F6;
    --surface-violet: #F6F1FF;
    --title: #332631;
    --text: #514451;
    --muted: #807080;
    --pink: #FF629F;
    --pink-dark: #E94D8E;
    --peach: #FF9BBC;
    --violet: #936BFF;
    --border: rgba(255, 98, 159, 0.16);
    --footer: #30232D;
    --footer-text: #FFEAF3;
    --shadow: 0 18px 55px rgba(82, 44, 75, 0.10);
    --shadow-soft: 0 10px 28px rgba(82, 44, 75, 0.07);
    --radius-xl: 30px;
    --radius-lg: 24px;
    --radius-md: 18px;
    --content: 1220px;
    --header-height: 78px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    min-width: 320px;
    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;
    -webkit-font-smoothing: antialiased;
}
body.drawer-open { overflow: hidden; }
a { color: inherit; text-decoration: none; pointer-events: auto; }
button, input, textarea, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; height: auto; }
main { display: block; padding-top: var(--header-height); }

.skip-link {
    position: fixed;
    left: 16px;
    top: -80px;
    z-index: 3000;
    padding: 10px 16px;
    border-radius: 12px;
    background: var(--title);
    color: white;
    transition: top .2s ease;
}
.skip-link:focus { top: 12px; }

.site-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 1000;
    height: var(--header-height);
    background: rgba(255, 247, 251, .88);
    border-bottom: 1px solid rgba(255, 98, 159, .11);
    box-shadow: 0 8px 28px rgba(82, 44, 75, .06);
    backdrop-filter: blur(18px);
}
.nav-shell {
    width: min(calc(100% - 36px), var(--content));
    height: 100%;
    margin: 0 auto;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 28px;
}
.brand-mark, .drawer-brand, .footer-brand {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
}
.brand-mark img, .drawer-brand img, .footer-brand img { max-height: 46px; width: auto; object-fit: contain; }
.brand-text, .footer-brand span {
    color: var(--title);
    font-size: 1.38rem;
    font-weight: 800;
    letter-spacing: .02em;
}
.desktop-nav {
    min-width: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: clamp(8px, 1.55vw, 24px);
    white-space: nowrap;
}
.desktop-nav a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    padding: 0 5px;
    color: #655765;
    font-size: .96rem;
    font-weight: 650;
    border-bottom: 2px solid transparent;
    transition: color .2s ease, border-color .2s ease;
}
.desktop-nav a:hover, .desktop-nav a:focus-visible, .desktop-nav a.is-current {
    color: var(--pink-dark);
    border-bottom-color: var(--pink);
}
.nav-actions { display: flex; align-items: center; gap: 10px; }
.compact-cta, .button-primary, .button-secondary, .text-button {
    min-height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    font-weight: 750;
    white-space: nowrap;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.compact-cta, .button-primary {
    color: #fff;
    background: linear-gradient(135deg, #FF9BBC 0%, #FF629F 50%, #936BFF 100%);
    box-shadow: 0 10px 24px rgba(233, 77, 142, .22);
}
.compact-cta { padding: 0 18px; font-size: .92rem; }
.button-primary { padding: 0 24px; }
.button-secondary {
    padding: 0 22px;
    color: var(--pink-dark);
    background: #fff;
    border: 1px solid rgba(233, 77, 142, .22);
}
.compact-cta:hover, .button-primary:hover, .button-secondary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(233, 77, 142, .18); }
.compact-cta:active, .button-primary:active, .button-secondary:active { transform: translateY(0); }

.menu-button, .drawer-close {
    position: relative;
    z-index: 2;
    width: 46px;
    height: 46px;
    padding: 0;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    border: 1px solid var(--border);
    border-radius: 15px;
    background: rgba(255,255,255,.88);
    color: var(--title);
    cursor: pointer;
}
.menu-button span { width: 19px; height: 2px; border-radius: 4px; background: currentColor; pointer-events: none; }
.mobile-menu-button { display: none; }

.drawer-overlay {
    position: fixed;
    inset: 0;
    z-index: 1400;
    background: rgba(48, 35, 45, .42);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .22s ease, visibility .22s ease;
}
.drawer-overlay.is-visible { opacity: 1; visibility: visible; pointer-events: auto; }
.site-drawer {
    position: fixed;
    inset: 0 0 0 auto;
    z-index: 1500;
    width: min(410px, 88vw);
    padding: 20px 22px 32px;
    overflow-y: auto;
    background: #fff;
    box-shadow: -24px 0 65px rgba(48, 35, 45, .18);
    transform: translateX(105%);
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transition: transform .25s ease, opacity .25s ease, visibility .25s ease;
}
.site-drawer.is-open { transform: translateX(0); visibility: visible; opacity: 1; pointer-events: auto; }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.drawer-close { font-size: 1.75rem; line-height: 1; }
.drawer-intro { margin: 18px 0; color: var(--muted); }
.drawer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.drawer-nav a {
    min-height: 50px;
    padding: 10px 13px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--surface-pink);
    font-weight: 650;
}
.drawer-nav a:hover, .drawer-nav a:focus-visible { color: var(--pink-dark); background: #fff; }

.section-shell { width: min(calc(100% - 40px), var(--content)); margin: 0 auto; }
.section-pad { padding: 88px 0; }
.section-pad-sm { padding: 64px 0; }
.section-heading { max-width: 760px; margin-bottom: 34px; }
.eyebrow {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 4px 12px;
    margin-bottom: 14px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: rgba(255,255,255,.76);
    color: var(--pink-dark);
    font-size: .86rem;
    font-weight: 760;
}
h1, h2, h3 { margin: 0; color: var(--title); line-height: 1.28; }
h1 { font-size: clamp(2.5rem, 6vw, 5.2rem); letter-spacing: -.04em; }
h2 { font-size: clamp(1.72rem, 3vw, 2.7rem); letter-spacing: -.025em; }
h3 { font-size: clamp(1.08rem, 2vw, 1.35rem); }
p { margin: 0 0 1em; }
.lead { font-size: clamp(1.04rem, 1.8vw, 1.2rem); color: #665766; }
.muted { color: var(--muted); }
.text-link {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    gap: 7px;
    color: var(--pink-dark);
    font-weight: 750;
}
.text-link::after { content: "→"; transition: transform .2s ease; }
.text-link:hover::after { transform: translateX(4px); }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }

.hero-home {
    position: relative;
    isolation: isolate;
    min-height: 680px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background:
      radial-gradient(circle at 15% 20%, rgba(255,155,188,.30), transparent 34%),
      radial-gradient(circle at 86% 28%, rgba(147,107,255,.18), transparent 29%),
      linear-gradient(180deg, #FFF9FC 0%, #FFF4FA 100%);
}
.hero-home::before, .hero-home::after, .page-hero::before, .page-hero::after {
    content: "";
    position: absolute;
    z-index: -1;
    border-radius: 50%;
    filter: blur(2px);
    pointer-events: none;
}
.hero-home::before { width: 220px; height: 220px; right: 9%; top: 12%; background: rgba(255,255,255,.65); }
.hero-home::after { width: 110px; height: 110px; left: 7%; bottom: 10%; background: rgba(147,107,255,.12); }
.hero-grid {
    width: min(calc(100% - 40px), var(--content));
    margin: 0 auto;
    padding: 82px 0 88px;
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, .72fr);
    gap: clamp(48px, 7vw, 96px);
    align-items: center;
}
.hero-copy h1 { margin-bottom: 14px; }
.hero-copy .hero-subtitle { margin-bottom: 20px; font-size: clamp(1.4rem, 3vw, 2.25rem); color: var(--pink-dark); font-weight: 760; line-height: 1.4; }
.hero-copy .lead { max-width: 760px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.hero-points span { min-height: 38px; display: inline-flex; align-items: center; padding: 5px 13px; border-radius: 999px; background: #fff; border: 1px solid var(--border); color: #655565; font-size: .92rem; font-weight: 650; }
.hero-visual { position: relative; min-height: 440px; display: grid; place-items: center; }
.hero-orbit {
    width: min(100%, 410px);
    aspect-ratio: 1 / 1;
    display: grid;
    place-items: center;
    border-radius: 38% 62% 58% 42% / 44% 44% 56% 56%;
    background: linear-gradient(145deg, rgba(255,255,255,.95), rgba(255,240,246,.84));
    border: 1px solid rgba(255,255,255,.8);
    box-shadow: var(--shadow);
}
.hero-phone {
    width: 210px;
    min-height: 380px;
    padding: 18px;
    border: 8px solid #3C2C38;
    border-radius: 38px;
    background: linear-gradient(180deg, #FFF, #FFF0F6);
    box-shadow: 0 25px 55px rgba(48,35,45,.20);
}
.hero-phone::before { content: ""; display: block; width: 72px; height: 8px; margin: 0 auto 20px; border-radius: 99px; background: #3C2C38; }
.phone-card { padding: 16px; margin-bottom: 12px; border-radius: 20px; background: #fff; border: 1px solid var(--border); }
.phone-card strong { display: block; color: var(--title); margin-bottom: 4px; }
.phone-card span { color: var(--muted); font-size: .86rem; }
.phone-gradient { height: 120px; border-radius: 22px; background: linear-gradient(145deg, #FFD1E1, #F2E9FF); margin-bottom: 14px; position: relative; overflow: hidden; }
.phone-gradient::after { content: ""; position: absolute; width: 82px; height: 82px; border-radius: 50%; right: -10px; bottom: -10px; background: rgba(255,255,255,.75); }
.floating-note { position: absolute; padding: 10px 14px; border-radius: 16px; background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow-soft); font-weight: 700; color: var(--title); }
.floating-note.one { left: 0; top: 15%; }
.floating-note.two { right: 0; bottom: 16%; }

.feature-grid, .card-grid-3, .card-grid-4, .channel-grid, .feedback-grid, .topic-grid {
    display: grid;
    gap: 20px;
}
.feature-grid, .card-grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card-grid-3, .topic-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.channel-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.feedback-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card, .feature-card, .channel-card, .topic-card, .feedback-card, .notice-card, .service-card {
    position: relative;
    overflow: hidden;
    padding: 26px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: rgba(255,255,255,.92);
    box-shadow: var(--shadow-soft);
}
.feature-card { min-height: 230px; }
.card h3, .feature-card h3, .channel-card h3, .topic-card h3, .service-card h3 { margin-bottom: 12px; }
.card p:last-child, .feature-card p:last-child, .channel-card p:last-child, .topic-card p:last-child, .feedback-card p:last-child { margin-bottom: 0; }
.icon-bubble { width: 52px; height: 52px; margin-bottom: 20px; display: grid; place-items: center; border-radius: 18px; background: var(--surface-pink); color: var(--pink-dark); font-size: 1.28rem; font-weight: 800; }
.channel-card { min-height: 230px; padding: 22px; }
.channel-card .text-link { margin-top: 12px; }

.soft-pink { background: var(--surface-pink); }
.soft-violet { background: var(--surface-violet); }
.white-section { background: #fff; }
.split-section {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, .84fr);
    gap: clamp(36px, 6vw, 80px);
    align-items: center;
}
.split-section.reverse { grid-template-columns: minmax(300px, .84fr) minmax(0, 1fr); }
.split-section.reverse .split-copy { order: 2; }
.split-section.reverse .split-visual { order: 1; }
.split-copy > h2 { margin-bottom: 18px; }
.split-visual {
    min-height: 370px;
    padding: 34px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-radius: var(--radius-xl);
    background: linear-gradient(145deg, #fff, #FFF0F6);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}
.visual-list { display: grid; gap: 12px; }
.visual-list div { padding: 16px 18px; border-radius: 16px; background: rgba(255,255,255,.9); border: 1px solid var(--border); }
.visual-list strong { display: block; margin-bottom: 4px; color: var(--title); }
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0 0; }
.tag-list span { min-height: 36px; display: inline-flex; align-items: center; padding: 4px 12px; border-radius: 999px; background: #fff; border: 1px solid var(--border); color: #675667; font-size: .9rem; }

.inspiration-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; grid-auto-rows: minmax(180px, auto); gap: 18px; }
.inspiration-card { padding: 26px; border-radius: var(--radius-lg); border: 1px solid var(--border); background: #fff; box-shadow: var(--shadow-soft); }
.inspiration-card.large { grid-row: span 2; background: linear-gradient(155deg, #FFF, #FFEAF3); }
.inspiration-card:nth-child(3n) { background: var(--surface-violet); }
.inspiration-card h3 { margin-bottom: 10px; }
.inspiration-card .tag-list { margin-top: 14px; }

.security-duo { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.security-card { padding: 34px; border-radius: var(--radius-xl); border: 1px solid var(--border); background: #fff; box-shadow: var(--shadow-soft); }
.security-card:nth-child(2) { background: var(--surface-violet); }
.security-card ul, .check-list, .plain-list { margin: 18px 0 0; padding: 0; list-style: none; }
.security-card li, .check-list li, .plain-list li { position: relative; padding-left: 26px; margin: 10px 0; }
.security-card li::before, .check-list li::before, .plain-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--pink-dark); font-weight: 800; }
.feedback-card { min-height: 185px; background: #fff; }
.feedback-card::before { content: "“"; display: block; color: var(--peach); font-size: 3.2rem; font-weight: 900; line-height: .7; margin-bottom: 18px; }

.faq-list { display: grid; gap: 12px; }
details {
    border: 1px solid var(--border);
    border-radius: 18px;
    background: #fff;
    box-shadow: 0 8px 24px rgba(82,44,75,.05);
}
summary {
    position: relative;
    min-height: 58px;
    padding: 16px 52px 16px 20px;
    display: flex;
    align-items: center;
    color: var(--title);
    font-weight: 750;
    cursor: pointer;
    list-style: none;
}
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 20px; font-size: 1.45rem; color: var(--pink-dark); }
details[open] summary::after { content: "−"; }
details p { padding: 0 20px 20px; margin: 0; color: #655765; }

.page-hero {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    padding: 92px 0 78px;
    background:
      radial-gradient(circle at 14% 15%, rgba(255,155,188,.26), transparent 34%),
      radial-gradient(circle at 88% 30%, rgba(147,107,255,.16), transparent 28%),
      linear-gradient(180deg, #FFF9FC, #FFF3F9);
}
.page-hero::before { width: 170px; height: 170px; right: 12%; bottom: -30px; background: rgba(255,255,255,.66); }
.page-hero::after { width: 90px; height: 90px; left: 8%; top: 18%; background: rgba(147,107,255,.1); }
.page-hero .section-shell { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .65fr); gap: 58px; align-items: center; }
.page-hero h1 { font-size: clamp(2.3rem, 5vw, 4.6rem); margin-bottom: 18px; }
.page-hero .lead { max-width: 760px; }
.hero-side-card { padding: 26px; border-radius: 26px; background: rgba(255,255,255,.86); border: 1px solid rgba(255,255,255,.9); box-shadow: var(--shadow); }
.hero-side-card strong { display: block; color: var(--title); font-size: 1.2rem; margin-bottom: 10px; }
.hero-side-card ul { margin: 0; padding: 0; list-style: none; }
.hero-side-card li { padding: 10px 0; border-bottom: 1px solid var(--border); }
.hero-side-card li:last-child { border-bottom: 0; }

.content-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 40px; align-items: start; }
.article-stack { display: grid; gap: 24px; }
.content-panel { padding: 34px; border-radius: var(--radius-lg); border: 1px solid var(--border); background: #fff; box-shadow: var(--shadow-soft); }
.content-panel.soft { background: var(--surface-pink); }
.content-panel.violet { background: var(--surface-violet); }
.content-panel h2 { margin-bottom: 18px; font-size: clamp(1.5rem, 2.5vw, 2.15rem); }
.content-panel h3 { margin: 22px 0 10px; }
.content-panel p:last-child { margin-bottom: 0; }
.side-index { position: sticky; top: calc(var(--header-height) + 24px); padding: 24px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow-soft); }
.side-index h2 { font-size: 1.2rem; margin-bottom: 12px; }
.side-index a { min-height: 44px; display: flex; align-items: center; justify-content: space-between; gap: 8px; border-bottom: 1px solid var(--border); color: #665766; }
.side-index a:last-child { border-bottom: 0; }
.side-index a:hover { color: var(--pink-dark); }

.step-list { counter-reset: steps; display: grid; gap: 18px; }
.step-item { counter-increment: steps; position: relative; padding: 24px 24px 24px 78px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: #fff; }
.step-item::before { content: counter(steps, decimal-leading-zero); position: absolute; left: 22px; top: 22px; width: 42px; height: 42px; display: grid; place-items: center; border-radius: 14px; background: var(--surface-pink); color: var(--pink-dark); font-weight: 850; }
.step-item h3 { margin-bottom: 8px; }
.timeline { position: relative; display: grid; gap: 20px; padding-left: 32px; }
.timeline::before { content: ""; position: absolute; left: 10px; top: 10px; bottom: 10px; width: 2px; background: linear-gradient(var(--pink), var(--violet)); }
.timeline-item { position: relative; padding: 24px; border-radius: 20px; background: #fff; border: 1px solid var(--border); }
.timeline-item::before { content: ""; position: absolute; left: -29px; top: 31px; width: 13px; height: 13px; border: 4px solid var(--bg); border-radius: 50%; background: var(--pink); }
.timeline-item h3 { margin-bottom: 8px; }

.info-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 26px; }
.info-strip div { padding: 18px; border-radius: 16px; background: rgba(255,255,255,.78); border: 1px solid var(--border); }
.info-strip strong { display: block; color: var(--title); margin-bottom: 5px; }
.related-links { display: flex; flex-wrap: wrap; gap: 10px; }
.related-links a { min-height: 44px; display: inline-flex; align-items: center; padding: 5px 14px; border-radius: 999px; background: #fff; border: 1px solid var(--border); color: var(--pink-dark); font-weight: 700; }
.cta-band { padding: 40px; display: flex; align-items: center; justify-content: space-between; gap: 28px; border-radius: var(--radius-xl); background: linear-gradient(135deg, #FFEAF3, #F2EBFF); border: 1px solid var(--border); }
.cta-band h2 { margin-bottom: 10px; }
.cta-band p { margin-bottom: 0; }

.site-footer { padding: 70px 0 20px; background: var(--footer); color: var(--footer-text); }
.footer-shell { width: min(calc(100% - 40px), var(--content)); margin: 0 auto; display: grid; grid-template-columns: 1.1fr 2fr; gap: 64px; }
.footer-brand-column p { max-width: 440px; color: rgba(255,234,243,.78); }
.footer-brand { margin-bottom: 18px; }
.footer-brand span { color: #fff; }
.footer-reminder { font-size: .92rem; }
.footer-links { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.footer-links h2 { color: #fff; font-size: 1rem; margin-bottom: 14px; }
.footer-links a { min-height: 38px; display: flex; align-items: center; color: rgba(255,234,243,.74); font-size: .94rem; }
.footer-links a:hover { color: #fff; }
.footer-bottom { width: min(calc(100% - 40px), var(--content)); margin: 46px auto 0; padding-top: 20px; display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid rgba(255,255,255,.12); color: rgba(255,234,243,.68); font-size: .9rem; }
.mobile-bottom-nav { display: none; }

:focus-visible { outline: 3px solid rgba(147,107,255,.38); outline-offset: 3px; }

@media (max-width: 1080px) {
    .desktop-nav { gap: 10px; }
    .desktop-nav a { font-size: .9rem; }
    .feature-grid, .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
    .channel-grid { grid-template-columns: repeat(3, 1fr); }
    .feedback-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-shell { grid-template-columns: 1fr; gap: 38px; }
}

@media (max-width: 900px) {
    :root { --header-height: 70px; }
    .desktop-nav, .desktop-menu-button { display: none; }
    .mobile-menu-button { display: inline-flex; }
    .nav-shell { width: min(calc(100% - 24px), var(--content)); grid-template-columns: 46px minmax(0, 1fr) auto; gap: 10px; }
    .brand-mark { justify-self: center; min-width: 0; }
    .brand-mark img { max-width: 150px; }
    .brand-text { font-size: 1.18rem; }
    .nav-actions { justify-self: end; }
    .compact-cta { min-height: 44px; padding: 0 14px; font-size: .86rem; }
    .hero-grid, .page-hero .section-shell, .split-section, .split-section.reverse { grid-template-columns: 1fr; }
    .hero-grid { padding: 62px 0 72px; }
    .hero-visual { min-height: 390px; }
    .split-section.reverse .split-copy, .split-section.reverse .split-visual { order: initial; }
    .card-grid-3, .topic-grid { grid-template-columns: repeat(2, 1fr); }
    .inspiration-grid { grid-template-columns: 1fr 1fr; }
    .inspiration-card.large { grid-row: auto; grid-column: 1 / -1; }
    .security-duo { grid-template-columns: 1fr; }
    .content-layout { grid-template-columns: 1fr; }
    .side-index { position: static; }
    .footer-links { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 680px) {
    body { line-height: 1.7; }
    main { padding-bottom: 76px; }
    .section-shell, .hero-grid, .page-hero .section-shell, .footer-shell, .footer-bottom { width: min(calc(100% - 28px), var(--content)); }
    .section-pad { padding: 64px 0; }
    .section-pad-sm { padding: 50px 0; }
    .hero-home { min-height: auto; }
    .hero-grid { gap: 34px; }
    .hero-copy h1 { font-size: clamp(2.7rem, 15vw, 4.4rem); }
    .hero-copy .hero-subtitle { font-size: 1.35rem; }
    .hero-visual { min-height: 350px; }
    .hero-orbit { width: 310px; }
    .hero-phone { width: 178px; min-height: 324px; border-width: 7px; }
    .floating-note { font-size: .82rem; padding: 8px 10px; }
    .feature-grid, .card-grid-3, .card-grid-4, .channel-grid, .feedback-grid, .topic-grid, .info-strip, .inspiration-grid { grid-template-columns: 1fr; }
    .inspiration-card.large { grid-column: auto; }
    .card, .feature-card, .channel-card, .topic-card, .feedback-card, .notice-card, .service-card, .content-panel { padding: 22px; }
    .page-hero { padding: 66px 0 58px; }
    .page-hero .section-shell { gap: 26px; }
    .hero-side-card { padding: 22px; }
    .cta-band { padding: 28px 22px; flex-direction: column; align-items: flex-start; }
    .step-item { padding: 22px 20px 22px 70px; }
    .step-item::before { left: 18px; top: 20px; }
    .drawer-nav { grid-template-columns: 1fr; }
    .site-drawer { padding-left: 18px; padding-right: 18px; }
    .footer-links { grid-template-columns: 1fr 1fr; gap: 28px 18px; }
    .footer-bottom { flex-direction: column; }
    .mobile-bottom-nav {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 900;
        min-height: 68px;
        padding: 6px max(8px, env(safe-area-inset-right)) calc(6px + env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left));
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 4px;
        background: rgba(255,255,255,.94);
        border-top: 1px solid var(--border);
        box-shadow: 0 -10px 30px rgba(82,44,75,.08);
        backdrop-filter: blur(16px);
    }
    .mobile-bottom-nav a { min-height: 54px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1px; border-radius: 13px; color: var(--muted); font-size: .78rem; font-weight: 720; }
    .mobile-bottom-nav a span { font-size: 1rem; }
    .mobile-bottom-nav a.is-current { color: var(--pink-dark); background: var(--surface-pink); }
    .site-footer { padding-bottom: 95px; }
}

@media (max-width: 430px) {
    .brand-mark img { max-width: 126px; }
    .compact-cta { padding: 0 11px; }
    .footer-links { grid-template-columns: 1fr; }
    .button-row { align-items: stretch; }
    .button-row .button-primary, .button-row .button-secondary { width: 100%; }
}

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