:root {
    --bg: #FFF7FA;
    --surface: #FFFFFF;
    --surface-soft: #FFEAF2;
    --ink: #4A1630;
    --body: #5C2A3E;
    --muted: #8A4A62;
    --soft: #B07A90;
    --pink: #E85A8B;
    --pink-bright: #FF7AA8;
    --pink-deep: #C43B6E;
    --pink-pale: #FFE1EC;
    --border: rgba(232,90,139,0.16);
    --shadow: 0 14px 34px rgba(196,59,110,0.10);
    --rail: 88px;
    --topbar: 56px;
    --radius: 20px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body { margin: 0; min-width: 0; overflow-x: hidden; background: var(--bg); color: var(--body); font-family: -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif; font-size: 16px; line-height: 1.78; }
body.overlay-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
button, input { font: inherit; }
button { color: inherit; }
:focus-visible { outline: 3px solid rgba(232,90,139,.35); outline-offset: 3px; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 300; padding: 10px 16px; background: var(--ink); color: #fff; border-radius: 999px; transition: top .2s; }
.skip-link:focus { top: 12px; }
.sr-only { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0,0,0,0) !important; white-space: nowrap !important; border: 0 !important; }

.side-rail { position: fixed; inset: 0 auto 0 0; z-index: 110; width: var(--rail); background: #FFEAF2; border-right: 1px solid var(--border); display: flex; flex-direction: column; align-items: center; padding: 10px 8px 16px; }
.rail-brand { width: 52px; height: 52px; border-radius: 18px; display: grid; place-items: center; margin-bottom: 12px; }
.rail-brand img { width: 44px; height: 44px; object-fit: contain; border-radius: 14px; }
.rail-fallback { width: 44px; height: 44px; border-radius: 14px; display: grid; place-items: center; font-weight: 800; color: #fff; background: linear-gradient(135deg,var(--pink-bright),var(--pink),var(--pink-deep)); }
.rail-nav { display: flex; flex: 1; width: 100%; flex-direction: column; align-items: center; gap: 7px; }
.rail-link, .rail-action { min-width: 64px; min-height: 44px; border: 0; border-radius: 999px; display: grid; place-items: center; padding: 8px 6px; background: transparent; color: var(--ink); font-size: 13px; line-height: 1.2; cursor: pointer; }
.rail-link:hover, .rail-action:hover { background: rgba(232,90,139,.10); }
.rail-link.is-current { background: var(--pink-deep); color: #fff; }
.rail-action:nth-last-child(2) { margin-top: auto; }

.topbar { position: fixed; top: 0; left: var(--rail); right: 0; z-index: 100; height: var(--topbar); display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding: 0 20px; background: rgba(255,247,250,.96); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); }
.topbar-left { justify-self: start; min-width: 96px; }
.topbar-right { justify-self: end; }
.mobile-menu-button { display: none; border: 0; background: transparent; min-width: 44px; min-height: 44px; border-radius: 999px; cursor: pointer; }
.topbar-brand { display: flex; align-items: center; justify-content: center; min-height: 44px; }
.brand-logo { max-height: 36px; width: auto; object-fit: contain; }
.brand-text { color: var(--ink); font-weight: 900; letter-spacing: .02em; }
.app-link { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; padding: 0 16px; border-radius: 999px; color: #fff; font-weight: 700; background: linear-gradient(135deg,#FF7AA8 0%,#E85A8B 55%,#C43B6E 100%); box-shadow: 0 8px 18px rgba(196,59,110,.16); }

.site-main { margin-left: calc(var(--rail) + 24px); padding: calc(var(--topbar) + 34px) 24px 64px 0; min-height: 70vh; }
.page-shell, .home-shell { width: min(1180px, calc(100vw - var(--rail) - 72px)); margin: 0 auto; }
.page-hero { margin-bottom: 28px; }
.eyebrow { margin: 0 0 6px; color: var(--pink-deep); font-size: 13px; font-weight: 800; letter-spacing: .08em; }
h1, h2, h3 { color: var(--ink); line-height: 1.3; margin-top: 0; }
h1 { font-size: clamp(28px,3.3vw,34px); margin-bottom: 12px; letter-spacing: -.02em; }
h2 { font-size: clamp(21px,2.5vw,27px); }
h3 { font-size: 18px; }
p { margin: 0 0 14px; }
.lead { max-width: 820px; color: var(--muted); font-size: 17px; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; color: var(--soft); font-size: 14px; margin-bottom: 18px; }
.breadcrumb a { color: var(--pink-deep); }

.media-slot { overflow: hidden; border-radius: 22px; background: linear-gradient(145deg,#FFEAF2,#FFF,#FFE1EC); min-height: 180px; border: 1px solid var(--border); }
.media-slot img { width: 100%; height: 100%; object-fit: cover; }
.media-slot.banner { max-height: 360px; min-height: 220px; }
.media-slot.banner img { max-height: 360px; object-fit: cover; }
.media-slot.compact { min-height: 210px; }
.media-slot.portrait { aspect-ratio: 4/5; min-height: 0; }

.primary-btn, .secondary-btn, .text-btn { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; border-radius: 999px; padding: 10px 18px; font-weight: 800; }
.primary-btn { color: #fff; background: linear-gradient(135deg,#FF7AA8 0%,#E85A8B 55%,#C43B6E 100%); }
.secondary-btn { background: #fff; color: var(--pink-deep); border: 1px solid var(--border); }
.text-btn { color: var(--pink-deep); padding-left: 0; padding-right: 0; }
.primary-btn:hover, .secondary-btn:hover { transform: translateY(-1px); box-shadow: var(--shadow); }

.cover-note { background: #fff; border: 1px solid var(--border); border-radius: 22px; padding: 28px; box-shadow: var(--shadow); margin-bottom: 44px; }
.cover-note .cover-copy { max-width: 820px; }
.cover-note .cover-copy p { font-size: 17px; }
.cover-actions { display: flex; flex-wrap: wrap; gap: 18px; margin: 16px 0 24px; }
.home-section { margin: 48px 0; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 18px; }
.section-heading p { color: var(--muted); max-width: 660px; }
.polaroid-wall { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.polaroid-card { background: #fff; border: 1px solid var(--border); border-radius: 20px; padding: 14px; box-shadow: var(--shadow); }
.polaroid-card:nth-child(2n) { transform: rotate(.8deg); }
.polaroid-card:nth-child(3n) { transform: rotate(-.8deg); }
.polaroid-card .media-slot { min-height: 180px; margin-bottom: 14px; }
.polaroid-card h3 { margin-bottom: 8px; }
.polaroid-card p { color: var(--muted); }
.notebook { background: repeating-linear-gradient(#fff,#fff 34px,rgba(232,90,139,.08) 35px); border: 1px solid var(--border); border-radius: 22px; padding: 26px; box-shadow: var(--shadow); }
.notebook-layout { display: grid; grid-template-columns: 1.2fr .8fr; gap: 22px; align-items: start; }
.note-list { display: grid; gap: 10px; margin-top: 18px; }
.note-row { display: grid; grid-template-columns: 44px 1fr; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--border); }
.note-row b { color: var(--pink-deep); font-size: 20px; }
.album-shelf { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.album-book { background: #fff; border-radius: 18px; padding: 14px; border: 1px solid var(--border); box-shadow: var(--shadow); }
.album-cover { aspect-ratio: 3/4; border-radius: 14px; background: linear-gradient(160deg,#FFE1EC,#fff 55%,#FFEAF2); display: grid; place-items: end start; padding: 16px; overflow: hidden; }
.album-cover img { width: 100%; height: 100%; object-fit: cover; grid-area: 1/1; }
.album-cover span { grid-area: 1/1; z-index: 1; background: rgba(255,255,255,.92); color: var(--ink); padding: 6px 10px; border-radius: 999px; font-weight: 800; }
.album-book p { color: var(--muted); margin-top: 12px; }
.big-number-list { display: grid; grid-template-columns: repeat(2,1fr); gap: 16px; }
.big-number { display: grid; grid-template-columns: 72px 1fr; gap: 16px; align-items: start; background: #fff; border: 1px solid var(--border); border-radius: 20px; padding: 20px; }
.big-number b { font-size: 46px; line-height: 1; color: var(--pink); letter-spacing: -.05em; }
.status-grid, .info-grid, .topic-grid, .service-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.status-card, .info-card, .topic-card, .service-card { background: #fff; border: 1px solid var(--border); border-radius: 18px; padding: 20px; }
.status-card small, .info-card small, .topic-card small { color: var(--pink-deep); font-weight: 800; }
.letters { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; }
.letter-card { background: #fff; border: 1px solid var(--border); border-radius: 20px; padding: 24px; box-shadow: var(--shadow); }
.letter-card .stamp { display: inline-flex; padding: 5px 10px; border-radius: 999px; background: var(--pink-pale); color: var(--ink); font-weight: 800; font-size: 13px; }
.app-feature { display: grid; grid-template-columns: .9fr 1.1fr; gap: 26px; align-items: center; background: #fff; border: 1px solid var(--border); border-radius: 22px; padding: 24px; }
.app-feature .icon-row { display: flex; gap: 12px; align-items: center; margin-top: 16px; }
.app-feature .icon-row img { width: 56px; height: 56px; object-fit: contain; border-radius: 16px; }
.home-tail { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.home-tail article { background: #fff; border: 1px solid var(--border); border-radius: 20px; padding: 22px; }

.content-card { background: #fff; border: 1px solid var(--border); border-radius: 20px; padding: 24px; margin-bottom: 18px; box-shadow: 0 10px 26px rgba(196,59,110,.06); }
.content-card p:last-child { margin-bottom: 0; }
.content-grid-two { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.content-grid-three { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.entry-list { counter-reset: item; display: grid; gap: 14px; }
.entry { position: relative; background: #fff; border: 1px solid var(--border); border-radius: 18px; padding: 20px 20px 20px 72px; }
.entry::before { counter-increment: item; content: counter(item, decimal-leading-zero); position: absolute; left: 20px; top: 19px; color: var(--pink); font-weight: 900; font-size: 22px; }
.index-list { display: grid; gap: 12px; }
.index-row { display: grid; grid-template-columns: 150px 1fr; gap: 18px; background: #fff; border: 1px solid var(--border); border-radius: 18px; padding: 18px; }
.index-row strong { color: var(--ink); }
.timeline { position: relative; display: grid; gap: 18px; }
.timeline::before { content: ''; position: absolute; left: 23px; top: 18px; bottom: 18px; width: 2px; background: var(--border); }
.timeline-step { position: relative; padding-left: 64px; }
.timeline-step::before { content: ''; position: absolute; left: 14px; top: 10px; width: 20px; height: 20px; border-radius: 50%; background: var(--pink); border: 5px solid #fff; box-shadow: 0 0 0 1px var(--border); }
.timeline-step .content-card { margin: 0; }
.quote-box { background: var(--surface-soft); color: var(--ink); border-radius: 20px; padding: 24px; border: 1px solid var(--border); }
.quote-box strong { color: var(--pink-deep); }
.longform article { margin-bottom: 24px; }
.longform article h2 { margin-bottom: 10px; }
.policy-section { border-top: 1px solid var(--border); padding: 24px 0; }
.policy-section:first-child { border-top: 0; padding-top: 0; }
.faq-list { display: grid; gap: 14px; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: 18px; padding: 20px; }
.faq-item h2 { font-size: 18px; margin-bottom: 8px; }
.tag { display: inline-flex; align-items: center; min-height: 30px; padding: 4px 10px; border-radius: 999px; background: var(--pink-pale); color: var(--ink); font-size: 13px; font-weight: 800; }
.inline-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.inline-links a { min-height: 44px; display: inline-flex; align-items: center; padding: 8px 14px; border-radius: 999px; background: #fff; border: 1px solid var(--border); color: var(--pink-deep); font-weight: 800; }

.site-footer { margin-left: var(--rail); background: #4A1630; color: #F8D6E4; padding: 44px 24px calc(36px + env(safe-area-inset-bottom)); }
.footer-inner { width: min(1180px,100%); margin: 0 auto; }
.footer-brand-row { display: flex; justify-content: space-between; gap: 28px; align-items: flex-start; padding-bottom: 28px; border-bottom: 1px solid rgba(248,214,228,.18); }
.footer-brand { display: flex; align-items: center; gap: 12px; color: #fff; }
.footer-logo { max-height: 34px; width: auto; }
.footer-brand strong { display: block; font-size: 20px; }
.footer-brand small { display: block; color: #F8D6E4; letter-spacing: .08em; }
.footer-brand-row p { max-width: 520px; color: #F8D6E4; }
.footer-links { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; padding: 28px 0; }
.footer-links section { display: flex; flex-direction: column; align-items: flex-start; gap: 7px; }
.footer-links h2 { color: #fff; font-size: 15px; margin-bottom: 6px; }
.footer-links a { color: #F8D6E4; font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-note { padding: 18px 0; border-top: 1px solid rgba(248,214,228,.18); border-bottom: 1px solid rgba(248,214,228,.18); }
.footer-copy { padding-top: 18px; color: #F8D6E4; font-size: 14px; }

.overlay { position: fixed; inset: 0; z-index: 220; visibility: hidden; pointer-events: none; opacity: 0; transition: opacity .18s ease, visibility .18s ease; }
.overlay.is-open { visibility: visible; pointer-events: auto; opacity: 1; }
.overlay-backdrop { position: absolute; inset: 0; background: rgba(74,22,48,.28); }
.menu-panel { position: relative; z-index: 1; width: 100%; height: 100%; overflow-y: auto; background: #FFF7FA; padding: 28px max(20px,4vw) 46px; }
.overlay-head { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin: 0 auto 24px; width: min(1180px,100%); }
.overlay-brand { display: flex; align-items: center; gap: 12px; color: var(--ink); }
.overlay-brand img { max-height: 34px; width: auto; }
.overlay-brand span { display: block; font-weight: 900; }
.overlay-brand small { display: block; color: var(--muted); letter-spacing: .08em; }
.overlay-close { width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--border); background: #fff; color: var(--ink); font-size: 28px; line-height: 1; cursor: pointer; }
.menu-groups { width: min(1180px,100%); margin: 0 auto; display: grid; gap: 28px; }
.menu-group h3 { font-size: 15px; color: var(--pink-deep); letter-spacing: .1em; margin-bottom: 10px; }
.menu-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.menu-grid a { min-height: 108px; padding: 18px; background: #fff; border: 1px solid var(--border); border-radius: 18px; }
.menu-grid strong { display: block; color: var(--ink); margin-bottom: 6px; }
.menu-grid span { display: block; color: var(--muted); font-size: 14px; line-height: 1.55; }
.menu-grid a:hover { border-color: rgba(232,90,139,.35); transform: translateY(-1px); box-shadow: var(--shadow); }
.search-overlay { display: grid; place-items: center; padding: 20px; }
.search-card { position: relative; z-index: 1; width: min(620px,100%); background: #fff; border-radius: 22px; padding: 24px; box-shadow: 0 22px 70px rgba(74,22,48,.22); }
.search-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; }
.search-head small { color: var(--pink-deep); font-weight: 800; }
.search-head h2 { margin: 3px 0 18px; }
.search-visual { min-height: 54px; border: 1px solid var(--border); background: #FFF7FA; border-radius: 999px; display: flex; align-items: center; gap: 10px; padding: 0 16px; }
.search-visual span { color: var(--pink); font-size: 22px; }
.search-visual input { width: 100%; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--ink); }
.preset-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.preset-links a { min-height: 44px; display: inline-flex; align-items: center; padding: 8px 14px; border-radius: 999px; background: var(--pink-pale); color: var(--ink); font-weight: 800; }
.search-tip { margin: 16px 0 0; color: var(--muted); font-size: 13px; }
.mobile-bottom-nav { display: none; }

@media (max-width: 980px) {
    .polaroid-wall { grid-template-columns: repeat(2,1fr); }
    .album-shelf, .status-grid, .info-grid, .topic-grid, .service-grid { grid-template-columns: repeat(2,1fr); }
    .home-tail { grid-template-columns: 1fr; }
    .content-grid-three { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 760px) {
    :root { --topbar: 56px; }
    body { padding-bottom: calc(50px + env(safe-area-inset-bottom)); }
    .side-rail { display: none; }
    .topbar { left: 0; padding: 0 10px; }
    .mobile-menu-button { display: inline-flex; align-items: center; justify-content: center; color: var(--ink); }
    .topbar-left, .topbar-right { min-width: 0; }
    .app-link { padding: 0 12px; font-size: 14px; }
    .brand-logo { max-width: 134px; max-height: 32px; }
    .site-main { margin-left: 0; padding: calc(var(--topbar) + 24px) 16px 46px; }
    .page-shell, .home-shell { width: 100%; }
    h1 { font-size: 30px; }
    .cover-note { padding: 20px; }
    .cover-actions { gap: 12px; }
    .cover-actions .text-btn { padding-right: 12px; }
    .polaroid-wall { grid-template-columns: 1fr; }
    .polaroid-card:nth-child(n) { transform: none; }
    .notebook-layout, .app-feature { grid-template-columns: 1fr; }
    .album-shelf { grid-template-columns: repeat(2,1fr); }
    .big-number-list, .letters, .content-grid-two, .content-grid-three { grid-template-columns: 1fr; }
    .big-number { grid-template-columns: 58px 1fr; }
    .big-number b { font-size: 38px; }
    .status-grid, .info-grid, .topic-grid, .service-grid { grid-template-columns: repeat(2,1fr); }
    .index-row { grid-template-columns: 1fr; gap: 6px; }
    .site-footer { margin-left: 0; padding: 38px 16px calc(78px + env(safe-area-inset-bottom)); }
    .footer-brand-row { flex-direction: column; }
    .footer-links { grid-template-columns: repeat(2,1fr); }
    .menu-panel { padding: 18px 16px 32px; }
    .menu-grid { grid-template-columns: repeat(2,1fr); }
    .menu-grid a { min-height: 118px; padding: 15px; }
    .search-overlay { padding: 14px; }
    .search-card { width: 100%; padding: 20px; }
    .mobile-bottom-nav { position: fixed; left: 0; right: 0; bottom: 0; z-index: 120; height: calc(50px + 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,.97); border-top: 1px solid var(--border); backdrop-filter: blur(14px); }
    .mobile-bottom-nav a { min-width: 0; min-height: 50px; display: grid; place-items: center; color: var(--muted); font-size: 13px; }
    .mobile-bottom-nav a.is-current { color: var(--pink); font-weight: 900; }
    .overlay { z-index: 240; }
}
@media (max-width: 430px) {
    .topbar { grid-template-columns: 72px 1fr 80px; }
    .topbar-brand { min-width: 0; overflow: hidden; }
    .brand-text { white-space: nowrap; font-size: 15px; }
    .app-link { padding: 0 10px; }
    .album-shelf, .status-grid, .info-grid, .topic-grid, .service-grid { grid-template-columns: 1fr; }
    .menu-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; }
    .menu-grid a { min-width: 0; min-height: 124px; }
    .menu-grid span { font-size: 13px; }
}