:root {
    --page: #FFF8FB; --surface: #FFFFFF; --soft-pink: #FFF0F6; --soft-purple: #F7F3FF; --soft-gray: #F8F4F6;
    --title: #32262D; --text: #51444C; --muted: #7C6D76; --faint: #A09199; --brand: #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); --radius: 22px;
    --max: 1200px; --nav-h: 72px; --note-h: 34px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 0; overflow-x: hidden; background: var(--page); color: var(--text); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif; line-height: 1.75; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--berry); }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid rgba(140,118,232,.45); outline-offset: 3px; }
img { max-width: 100%; height: auto; display: block; }
.shell { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.skip-link { position: fixed; left: 16px; top: 8px; z-index: 200; transform: translateY(-160%); background: #fff; padding: 8px 12px; border-radius: 12px; box-shadow: var(--shadow); }
.skip-link:focus { transform: translateY(0); }
.top-note { position: sticky; top: 0; z-index: 81; height: var(--note-h); background: #fff2f7; border-bottom: 1px solid var(--border); font-size: 13px; color: var(--muted); }
.top-note-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.top-note-links { display: flex; align-items: center; gap: 18px; }
.top-note a { color: var(--berry); }
.site-header { position: sticky; top: var(--note-h); z-index: 80; background: rgba(255,248,251,.96); border-bottom: 1px solid var(--border); backdrop-filter: blur(14px); }
.main-nav { min-height: var(--nav-h); display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 26px; }
.brand { display: inline-flex; align-items: center; min-width: 128px; color: var(--title); font-weight: 850; letter-spacing: .06em; }
.brand img { width: 142px; max-height: 42px; object-fit: contain; }
.brand-text { font-size: 20px; white-space: nowrap; }
.desktop-primary-links { display: flex; justify-content: center; align-items: center; gap: clamp(12px, 2.4vw, 30px); min-width: 0; }
.nav-link { min-height: 44px; display: inline-flex; align-items: center; position: relative; color: var(--muted); white-space: nowrap; font-weight: 650; }
.nav-link.is-current { color: var(--title); }
.nav-link.is-current::after { content: ""; position: absolute; left: 12%; right: 12%; bottom: 3px; height: 3px; border-radius: 99px; background: linear-gradient(90deg, var(--coral), var(--brand), var(--purple)); pointer-events: none; }
.nav-actions { display: flex; align-items: center; gap: 10px; white-space: nowrap; }
.button, .nav-control { min-height: 46px; border: 0; border-radius: 999px; padding: 0 20px; display: inline-flex; align-items: center; justify-content: center; cursor: pointer; white-space: nowrap; font-weight: 750; }
.button { color: #fff; background: linear-gradient(135deg, #FF8EAC 0%, #FF5D9E 52%, #8C76E8 100%); box-shadow: 0 10px 24px rgba(217,76,131,.18); }
.button:hover { color: #fff; transform: translateY(-1px); }
.button.button-small { min-height: 44px; padding-inline: 17px; font-size: 14px; }
.button-secondary { background: #fff; color: var(--berry); border: 1px solid var(--border); box-shadow: none; }
.button-secondary:hover { color: var(--deep-purple); }
.nav-control { background: #fff; color: var(--title); border: 1px solid var(--border); }
.mobile-nav-side { display: none; }
main { display: block; }
.section { padding: clamp(58px, 8vw, 104px) 0; }
.section-tight { padding: clamp(42px, 6vw, 72px) 0; }
.section-soft { background: var(--soft-pink); }
.section-purple { background: var(--soft-purple); }
.section-gray { background: var(--soft-gray); }
.eyebrow { color: var(--berry); font-weight: 800; letter-spacing: .12em; font-size: 13px; text-transform: uppercase; }
h1, h2, h3 { color: var(--title); line-height: 1.22; margin-top: 0; }
h1 { font-size: clamp(38px, 5vw, 70px); letter-spacing: -.04em; margin-bottom: 22px; }
h2 { font-size: clamp(28px, 3.2vw, 44px); letter-spacing: -.025em; margin-bottom: 18px; }
h3 { font-size: 20px; margin-bottom: 10px; }
p { margin: 0 0 1em; }
.lead { font-size: clamp(17px, 2vw, 20px); color: var(--muted); max-width: 760px; }
.section-head { display: flex; justify-content: space-between; gap: 26px; align-items: end; margin-bottom: 34px; }
.section-head p { max-width: 660px; color: var(--muted); }
.text-link { display: inline-flex; align-items: center; min-height: 44px; color: var(--berry); font-weight: 760; }
.text-link::after { content: " →"; margin-left: 5px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: clamp(22px, 3vw, 32px); }
.card p:last-child { margin-bottom: 0; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.stack-grid { display: grid; grid-template-columns: 1fr; gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.hero { padding: clamp(52px, 7vw, 90px) 0 70px; background: radial-gradient(circle at 78% 14%, rgba(140,118,232,.16), transparent 30%), radial-gradient(circle at 18% 5%, rgba(255,93,158,.14), transparent 34%); }
.hero-grid { display: grid; grid-template-columns: 1.08fr .68fr .74fr; gap: 28px; align-items: center; }
.hero-copy .brand-kicker { display: inline-flex; margin-bottom: 12px; color: var(--berry); font-weight: 850; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.phone-stage { min-height: 530px; display: grid; place-items: center; position: relative; }
.phone-shell { width: min(290px, 90%); aspect-ratio: 9 / 18; border: 10px solid #3a2e35; border-radius: 42px; background: linear-gradient(180deg, #fff 0%, #fff5fa 100%); box-shadow: var(--shadow-strong); padding: 24px 16px 18px; position: relative; overflow: hidden; }
.phone-notch { position: absolute; width: 36%; height: 18px; border-radius: 0 0 13px 13px; background: #3a2e35; top: 0; left: 32%; }
.phone-topline { margin-top: 18px; font-size: 13px; color: var(--berry); font-weight: 800; }
.phone-title { font-size: 22px; font-weight: 850; color: var(--title); margin: 4px 0 16px; }
.phone-card { border-radius: 18px; padding: 16px; margin-bottom: 12px; background: #fff; border: 1px solid var(--border); }
.phone-card.pink { background: var(--soft-pink); }
.phone-card.purple { background: var(--soft-purple); }
.phone-card strong { display: block; color: var(--title); margin-bottom: 4px; }
.phone-card span { color: var(--muted); font-size: 13px; }
.hero-aside { display: grid; gap: 18px; }
.hero-aside .card { min-height: 190px; display: flex; flex-direction: column; justify-content: flex-end; }
.hero-aside .card:first-child { background: linear-gradient(145deg, #fff 0%, #fff0f6 100%); }
.hero-aside .card:last-child { background: linear-gradient(145deg, #fff 0%, #f7f3ff 100%); }
.topic-strip { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(128px, 1fr); overflow-x: auto; gap: 14px; padding: 6px 2px 18px; scrollbar-width: thin; scroll-snap-type: x proximity; }
.topic-chip { scroll-snap-align: start; min-width: 160px; background: #fff; border: 1px solid var(--border); border-radius: 18px; padding: 18px; }
.topic-chip strong { display: block; color: var(--title); margin-bottom: 6px; }
.topic-chip p { color: var(--muted); font-size: 14px; min-height: 50px; }
.magazine { display: grid; grid-template-columns: 1.35fr 1fr 1fr; grid-template-rows: auto auto; gap: 18px; }
.magazine .feature { grid-row: 1 / span 2; padding: 34px; background: linear-gradient(145deg, #fff, #fff0f6); }
.magazine .mini { min-height: 215px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 6px; }
.tag { padding: 5px 10px; border-radius: 999px; background: var(--soft-pink); color: var(--berry); font-size: 12px; font-weight: 700; }
.timeline { display: grid; gap: 0; border-left: 2px solid rgba(255,93,158,.2); margin-left: 14px; }
.timeline article { position: relative; padding: 0 0 30px 32px; }
.timeline article::before { content: ""; width: 14px; height: 14px; border-radius: 50%; background: var(--brand); border: 4px solid #fff; box-shadow: 0 0 0 1px var(--border); position: absolute; left: -8px; top: 7px; pointer-events: none; }
.timeline .notice { color: var(--muted); font-size: 14px; }
.quote-card { position: relative; padding-top: 38px; }
.quote-card::before { content: "“"; position: absolute; left: 24px; top: 8px; color: rgba(255,93,158,.24); font-size: 52px; line-height: 1; pointer-events: none; }
.app-band { border-radius: 32px; background: linear-gradient(135deg, #fff0f6 0%, #fff 48%, #f4f0ff 100%); border: 1px solid var(--border); padding: clamp(28px, 5vw, 58px); display: grid; grid-template-columns: 1.2fr .8fr; gap: 34px; align-items: center; }
.service-stack { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.service-stack .card { box-shadow: none; }
.split-note { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.split-note > article { border-radius: 26px; padding: clamp(26px, 4vw, 40px); border: 1px solid var(--border); }
.split-note > article:first-child { background: #fff5f9; }
.split-note > article:last-child { background: #f6f3ff; }
.clean-list { padding-left: 1.25em; margin: 14px 0; }
.clean-list li { margin: 8px 0; }
.faq-list { display: grid; gap: 12px; }
details { background: #fff; border: 1px solid var(--border); border-radius: 18px; padding: 0 20px; box-shadow: 0 8px 24px rgba(76,48,66,.05); }
summary { min-height: 58px; display: flex; align-items: center; cursor: pointer; color: var(--title); font-weight: 780; }
details p { color: var(--muted); padding: 0 0 18px; margin: 0; }
.page-hero { padding: 66px 0 54px; background: linear-gradient(180deg, rgba(255,240,246,.72), rgba(255,248,251,0)); }
.page-hero h1 { font-size: clamp(36px, 4.8vw, 58px); max-width: 850px; }
.page-hero .lead { max-width: 850px; }
.page-nav { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.page-nav a { min-height: 44px; display: inline-flex; align-items: center; padding: 0 16px; border-radius: 999px; background: #fff; border: 1px solid var(--border); color: var(--berry); font-weight: 700; }
.prose-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr); gap: 26px; align-items: start; }
.prose-main { display: grid; gap: 22px; }
.prose-main article { background: #fff; border: 1px solid var(--border); border-radius: 24px; padding: clamp(24px, 3vw, 34px); }
.prose-main article:nth-child(2n) { background: #fffafd; }
.side-note { position: sticky; top: calc(var(--nav-h) + 20px); background: var(--soft-purple); border: 1px solid rgba(140,118,232,.16); border-radius: 24px; padding: 28px; }
.steps { counter-reset: step; display: grid; gap: 18px; }
.step { position: relative; padding: 25px 26px 25px 74px; background: #fff; border-radius: 22px; border: 1px solid var(--border); }
.step::before { counter-increment: step; content: counter(step); position: absolute; left: 24px; top: 24px; width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: var(--soft-pink); color: var(--berry); font-weight: 850; }
.notice-box { background: linear-gradient(135deg, #fff1f6, #f8f4ff); border: 1px solid var(--border); border-radius: 24px; padding: 28px; }
.link-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.link-grid a { min-height: 84px; display: flex; flex-direction: column; justify-content: center; padding: 18px; border-radius: 18px; background: #fff; border: 1px solid var(--border); }
.link-grid strong { color: var(--title); }
.link-grid span { color: var(--muted); font-size: 13px; }
.service-end { text-align: center; border-radius: 28px; padding: 40px 24px; background: var(--soft-pink); }
.site-footer { background: #30242B; color: #FFEAF2; padding: 64px 0 100px; }
.footer-grid { display: grid; grid-template-columns: 1.35fr repeat(4, 1fr); gap: 28px; }
.site-footer h2, .site-footer h3 { color: #fff; }
.site-footer h2 { font-size: 24px; }
.site-footer h3 { font-size: 15px; }
.site-footer p { color: rgba(255,234,242,.74); }
.site-footer nav { display: grid; align-content: start; gap: 7px; }
.site-footer a { color: rgba(255,234,242,.82); min-height: 34px; }
.site-footer a:hover { color: #fff; }
.footer-bottom { margin-top: 42px; padding-top: 24px; border-top: 1px solid rgba(255,234,242,.12); display: flex; justify-content: space-between; gap: 24px; font-size: 13px; }
.footer-bottom p { margin: 0; }
.channel-overlay { position: fixed; inset: 0; z-index: 95; background: rgba(48,36,43,.28); opacity: 0; visibility: hidden; pointer-events: none; transition: opacity .2s ease, visibility .2s ease; }
.channel-overlay.is-open { opacity: 1; visibility: visible; pointer-events: none; }
.channel-panel { position: fixed; z-index: 100; top: calc(var(--nav-h) + var(--note-h) + 8px); left: 50%; width: min(var(--max), calc(100% - 40px)); transform: translate(-50%, -18px); border-radius: 26px; background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow-strong); opacity: 0; visibility: hidden; pointer-events: none; transition: opacity .2s ease, transform .2s ease, visibility .2s ease; max-height: calc(100vh - 128px); overflow: auto; }
.channel-panel.is-open { opacity: 1; visibility: visible; pointer-events: auto; transform: translate(-50%, 0); }
.channel-panel-head { min-height: 60px; display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 10px 20px; border-bottom: 1px solid var(--border); }
.panel-close { min-height: 44px; padding: 0 16px; border-radius: 999px; border: 1px solid var(--border); background: #fff; color: var(--title); cursor: pointer; }
.sheet-handle { display: none; }
.channel-groups { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; padding: 20px; }
.channel-groups section { min-width: 0; }
.channel-groups h2 { font-size: 15px; color: var(--muted); margin: 0 0 8px; }
.channel-groups a { display: block; min-height: 66px; padding: 10px 12px; border-radius: 14px; }
.channel-groups a:hover { background: var(--soft-pink); }
.channel-groups a.is-current, .mobile-channel-list a.is-current { background: var(--soft-pink); color: var(--berry); box-shadow: inset 0 0 0 1px var(--border); }
.channel-groups strong, .channel-groups span { display: block; }
.channel-groups strong { color: var(--title); font-size: 15px; }
.channel-groups span { color: var(--muted); font-size: 12px; line-height: 1.5; margin-top: 2px; }
.mobile-channel-list, .mobile-bottom-nav { display: none; }
@media (max-width: 980px) {
    .shell { width: min(var(--max), calc(100% - 32px)); }
    .desktop-primary-links, .nav-actions { display: none; }
    .main-nav { grid-template-columns: 1fr auto 1fr; gap: 12px; min-height: 64px; }
    .mobile-nav-side { display: flex; align-items: center; min-width: 0; }
    .mobile-nav-left { justify-content: flex-start; }
    .mobile-nav-right { justify-content: flex-end; }
    .mobile-nav-side .nav-control { padding: 0 12px; min-width: 44px; font-size: 13px; }
    .brand { min-width: 0; justify-content: center; }
    .brand img { width: 118px; }
    .brand-text { font-size: 18px; }
    .hero-grid { grid-template-columns: 1fr; }
    .hero-copy { max-width: 760px; }
    .phone-stage { min-height: 470px; }
    .hero-aside { grid-template-columns: repeat(2, 1fr); }
    .hero-aside .card { min-height: 160px; }
    .magazine { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
    .magazine .feature { grid-column: 1 / -1; grid-row: auto; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-brand { grid-column: 1 / -1; }
    .channel-overlay.is-open { pointer-events: auto; }
    .channel-panel { top: auto; bottom: 0; left: 0; width: 100%; max-height: 85vh; border-radius: 26px 26px 0 0; transform: translateY(105%); overflow: hidden; padding-bottom: env(safe-area-inset-bottom); }
    .channel-panel.is-open { transform: translateY(0); }
    .channel-panel-head { position: sticky; top: 0; z-index: 2; background: #fff; }
    .sheet-handle { display: block; position: absolute; top: 8px; left: 50%; width: 42px; height: 5px; border-radius: 999px; background: #e5d9df; transform: translateX(-50%); }
    .channel-panel-head strong { padding-top: 6px; }
    .desktop-channel-groups { display: none; }
    .mobile-channel-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; padding: 16px 16px 24px; max-height: calc(85vh - 64px); overflow-y: auto; overscroll-behavior: contain; }
    .mobile-channel-list a { min-height: 50px; display: flex; align-items: center; padding: 0 16px; border-radius: 14px; background: var(--soft-gray); font-weight: 720; color: var(--title); }
    .mobile-bottom-nav { display: grid; position: fixed; z-index: 70; left: 0; right: 0; bottom: 0; grid-template-columns: repeat(5, 1fr); background: rgba(255,255,255,.97); border-top: 1px solid var(--border); padding: 7px max(8px, env(safe-area-inset-right)) calc(7px + env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left)); box-shadow: 0 -8px 30px rgba(76,48,66,.07); }
    .mobile-bottom-nav a { min-height: 52px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; border-radius: 12px; color: var(--muted); }
    .mobile-bottom-nav span { font-size: 18px; line-height: 1; }
    .mobile-bottom-nav b { font-size: 11px; line-height: 1.2; }
    .mobile-bottom-nav a.is-current { background: var(--soft-pink); color: var(--berry); }
    .site-footer { padding-bottom: calc(122px + env(safe-area-inset-bottom)); }
    .prose-grid { grid-template-columns: 1fr; }
    .side-note { position: static; }
    .link-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
    .shell { width: calc(100% - 32px); }
    .topic-strip { grid-auto-columns: minmax(160px, 1fr); }
    .top-note-links a:first-child { display: none; }
    .top-note { font-size: 12px; }
    .top-note-inner { gap: 10px; }
    .top-note-links { gap: 0; }
    .brand-text { font-size: 17px; }
    .hero { padding-top: 40px; }
    .hero-actions .button, .hero-actions .text-link { width: 100%; justify-content: center; }
    .phone-stage { min-height: 440px; }
    .hero-aside { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 10px; }
    .hero-aside .card { min-width: min(82vw, 330px); scroll-snap-align: start; }
    .grid-2, .grid-3, .grid-4, .split-note, .app-band, .service-stack, .magazine { grid-template-columns: 1fr; }
    .magazine .feature { grid-column: auto; }
    .section-head { align-items: start; flex-direction: column; }
    .page-hero { padding-top: 44px; }
    .page-nav { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 8px; }
    .page-nav a { flex: 0 0 auto; }
    .link-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-brand { grid-column: auto; }
    .footer-bottom { flex-direction: column; }
    .mobile-channel-list { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}