:root {
  --brand: #e5487d;
  --brand-dark: #c92f65;
  --brand-soft: #f9d7e3;
  --accent: #4d2a67;
  --accent-soft: #eee4f4;
  --bg: #fff9fc;
  --surface: #ffffff;
  --surface-soft: #f8edf3;
  --ink: #261d2b;
  --ink-soft: #625568;
  --muted: #8a7a8f;
  --line: #eadde5;
  --shadow-sm: 0 10px 30px rgba(77, 42, 103, .08);
  --shadow-lg: 0 28px 80px rgba(77, 42, 103, .16);
  --radius-sm: 14px;
  --radius-md: 24px;
  --radius-lg: 40px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --container: 1220px;
  --reading: 760px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--bg); font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif; font-size: 16px; line-height: 1.8; }
body::before { content: ""; position: fixed; inset: 0; pointer-events: none; z-index: -1; background-image: radial-gradient(circle at 8% 12%, rgba(229,72,125,.08), transparent 24%), radial-gradient(circle at 92% 30%, rgba(77,42,103,.08), transparent 26%); }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
button { font: inherit; }
.container { width: min(calc(100% - 32px), var(--container)); margin-inline: auto; }
.reading { width: min(calc(100% - 32px), var(--reading)); margin-inline: auto; }
.site-header { position: sticky; top: 0; z-index: 30; border-bottom: 1px solid transparent; background: rgba(255,249,252,.88); backdrop-filter: blur(18px); transition: .24s ease; }
.site-header.is-scrolled { border-color: var(--line); box-shadow: 0 8px 30px rgba(38,29,43,.06); }
.header-inner { min-height: 76px; display: flex; align-items: center; gap: var(--space-5); }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 21px; font-weight: 800; letter-spacing: -.03em; white-space: nowrap; }
.brand-mark { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 12px 12px 18px 18px; color: #fff; background: linear-gradient(135deg, var(--brand), var(--accent)); box-shadow: 0 9px 22px rgba(229,72,125,.26); }
.site-nav { display: none; }
.site-nav.is-open { position: absolute; display: grid; top: 76px; left: 16px; right: 16px; padding: 14px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); box-shadow: var(--shadow-lg); }
.site-nav a { min-height: 44px; display: flex; align-items: center; padding: 0 14px; color: var(--ink-soft); border-radius: 10px; font-size: 14px; font-weight: 650; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--brand-dark); background: var(--surface-soft); }
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.menu-toggle { width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 14px; background: #fff; color: var(--accent); cursor: pointer; }
.visit-button, .hero-button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; border-radius: 999px; background: var(--brand); color: #fff; font-weight: 750; box-shadow: 0 12px 28px rgba(229,72,125,.24); transition: .24s ease; }
.visit-button { min-width: 116px; padding: 0 18px; font-size: 14px; }
.hero-button { min-width: 174px; padding: 0 26px; }
.visit-button:hover, .hero-button:hover { background: var(--brand-dark); transform: translateY(-2px); box-shadow: 0 16px 34px rgba(229,72,125,.3); }
:focus-visible { outline: 3px solid rgba(77,42,103,.3); outline-offset: 3px; }
.hero { position: relative; overflow: hidden; padding: 62px 0 72px; }
.hero::after { content: ""; position: absolute; width: 430px; height: 430px; right: -220px; bottom: -260px; border: 80px solid rgba(229,72,125,.08); border-radius: 50%; }
.hero-grid { display: grid; gap: 34px; align-items: center; }
.eyebrow { margin: 0 0 14px; color: var(--brand-dark); font-size: 12px; font-weight: 800; letter-spacing: .22em; }
h1, h2, h3, p { margin-top: 0; }
.hero h1 { max-width: 680px; margin-bottom: 20px; font-size: clamp(34px, 7vw, 68px); line-height: 1.16; letter-spacing: -.045em; }
.hero-copy { max-width: 620px; margin-bottom: 28px; color: var(--ink-soft); font-size: 18px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; }
.hero-note { color: var(--muted); font-size: 13px; }
.hero-visual { position: relative; padding: 12px; background: linear-gradient(145deg,#fff,rgba(249,215,227,.72)); border: 1px solid #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); transform: rotate(1.5deg); }
.hero-visual img { border-radius: 30px; aspect-ratio: 16/10; object-fit: cover; }
.float-chip { position: absolute; left: -10px; bottom: 26px; padding: 10px 14px; background: #fff; border: 1px solid var(--line); border-radius: 999px; box-shadow: var(--shadow-sm); color: var(--accent); font-size: 13px; font-weight: 750; }
.signal-strip { padding: 18px 0; border-block: 1px solid var(--line); background: rgba(255,255,255,.78); }
.signal-list { display: grid; grid-template-columns: repeat(2,1fr); gap: 12px; }
.signal { display: flex; align-items: center; gap: 9px; color: var(--ink-soft); font-size: 13px; font-weight: 650; }
.signal::before { content: ""; width: 8px; height: 8px; flex: 0 0 auto; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 5px var(--brand-soft); }
.section { padding: 72px 0; }
.section.alt { background: rgba(248,237,243,.72); }
.section-head { max-width: 700px; margin-bottom: 38px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head h2 { margin-bottom: 14px; font-size: clamp(28px,5vw,44px); line-height: 1.25; letter-spacing: -.03em; }
.section-head p { color: var(--ink-soft); }
.feature-grid { display: grid; gap: 16px; }
.feature-card { min-height: 210px; padding: 26px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); transition: .24s ease; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.feature-number { display: block; margin-bottom: 26px; color: var(--brand); font-size: 14px; font-weight: 800; }
.feature-card h3 { margin-bottom: 10px; font-size: 21px; }
.feature-card p { margin-bottom: 0; color: var(--ink-soft); }
.story-grid { display: grid; gap: 36px; align-items: center; }
.story-media { padding: 10px; background: var(--accent-soft); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.story-media img { border-radius: 30px; aspect-ratio: 16/10; object-fit: cover; }
.story-copy h2 { font-size: clamp(28px,5vw,46px); line-height: 1.22; letter-spacing: -.03em; }
.story-copy p { color: var(--ink-soft); }
.text-link { color: var(--brand-dark); font-weight: 700; text-decoration: underline; text-decoration-color: var(--brand-soft); text-underline-offset: 5px; }
.steps { display: grid; gap: 18px; counter-reset: step; }
.step { position: relative; padding: 25px 24px 25px 74px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-md); }
.step::before { counter-increment: step; content: "0" counter(step); position: absolute; left: 22px; top: 22px; color: var(--brand); font-size: 24px; font-weight: 300; }
.step h3 { margin-bottom: 5px; font-size: 18px; }
.step p { margin-bottom: 0; color: var(--ink-soft); font-size: 15px; }
.scene-grid { display: grid; gap: 16px; }
.scene { padding: 26px; border-radius: var(--radius-md); color: #fff; background: var(--accent); }
.scene:nth-child(2) { background: var(--brand-dark); }
.scene:nth-child(3) { color: var(--ink); background: var(--brand-soft); }
.scene h3 { font-size: 21px; }
.scene p { margin-bottom: 0; opacity: .84; }
.closing-line { padding: 58px 0 78px; text-align: center; }
.closing-line p { max-width: 790px; margin-inline: auto; font-size: clamp(24px,4vw,40px); line-height: 1.45; font-weight: 750; letter-spacing: -.025em; }
.breadcrumb { padding-top: 26px; color: var(--muted); font-size: 13px; }
.breadcrumb a { color: var(--brand-dark); }
.page-intro { padding: 38px 0 54px; border-bottom: 1px solid var(--line); }
.page-intro h1 { margin-bottom: 16px; font-size: clamp(30px,5vw,44px); line-height: 1.28; letter-spacing: -.035em; }
.page-intro p { max-width: 720px; margin-bottom: 0; color: var(--ink-soft); font-size: 18px; }
.article { padding: 20px 0 72px; }
.article-section { padding: 48px 0; border-bottom: 1px solid var(--line); }
.article-section:last-child { border-bottom: 0; }
.article-section h2 { position: relative; padding-left: 22px; margin-bottom: 20px; font-size: clamp(24px,4vw,32px); line-height: 1.35; letter-spacing: -.02em; }
.article-section h2::before { content: ""; position: absolute; left: 0; top: .2em; width: 5px; height: 1.1em; border-radius: 99px; background: var(--brand); }
.article-section p, .article-section li { color: var(--ink-soft); }
.article-section ul { padding-left: 1.2em; }
.article-image { margin: 28px 0; padding: 8px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
.article-image img { border-radius: 18px; }
.info-grid { display: grid; gap: 14px; margin-top: 24px; }
.info-card { padding: 21px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); }
.info-card h3 { margin-bottom: 6px; font-size: 17px; }
.info-card p { margin-bottom: 0; font-size: 15px; }
.note-box { margin: 24px 0; padding: 20px 22px; border-left: 4px solid var(--brand); background: var(--surface-soft); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--ink-soft); }
.faq-groups { padding: 36px 0 74px; }
.faq-group + .faq-group { margin-top: 42px; }
.faq-group h2 { margin-bottom: 18px; font-size: 24px; }
details { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); }
details + details { margin-top: 12px; }
summary { min-height: 60px; padding: 16px 50px 16px 20px; display: flex; align-items: center; position: relative; cursor: pointer; font-weight: 750; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 20px; color: var(--brand); font-size: 24px; font-weight: 400; }
details[open] summary::after { content: "−"; }
details p { padding: 0 20px 20px; margin: 0; color: var(--ink-soft); }
.site-footer { padding: 42px 0; color: var(--ink-soft); background: #fff; border-top: 1px solid var(--line); }
.footer-grid { display: grid; gap: 16px; }
.footer-brand { color: var(--ink); font-weight: 800; }
.footer-copy { max-width: 720px; margin: 0; font-size: 14px; }
.footer-meta { display: flex; flex-wrap: wrap; gap: 8px 20px; color: var(--muted); font-size: 13px; }
.reveal { opacity: 0; transform: translateY(16px); transition: .6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } .reveal { opacity: 1; transform: none; } }
@media (min-width: 760px) {
  .container, .reading { width: min(calc(100% - 64px), var(--container)); }
  .reading { width: min(calc(100% - 64px), var(--reading)); }
  .hero { padding: 86px 0 100px; }
  .hero-grid { grid-template-columns: 1.02fr .98fr; gap: 60px; }
  .signal-list { grid-template-columns: repeat(4,1fr); }
  .section { padding: 104px 0; }
  .feature-grid { grid-template-columns: repeat(2,1fr); }
  .story-grid { grid-template-columns: 1fr 1fr; gap: 72px; }
  .story-grid.reverse .story-media { order: 2; }
  .steps { grid-template-columns: repeat(3,1fr); }
  .scene-grid { grid-template-columns: repeat(3,1fr); }
  .info-grid { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1fr auto; align-items: end; }
  .footer-meta { justify-content: flex-end; }
}
@media (min-width: 1040px) {
  .site-nav { margin-inline: auto; display: flex; align-items: center; gap: 4px; }
  .menu-toggle { display: none; }
  .feature-grid { grid-template-columns: repeat(4,1fr); }
}