:root {
    --bg: #FFF9FC; --surface: #FFFFFF; --pink-soft: #FFF1F6; --purple-soft: #F6F3FF; --gray-soft: #F8F6F7;
    --title: #31262C; --text: #51454C; --muted: #7C6E75; --hint: #A2949B;
    --pink: #FF5C98; --berry: #D9467B; --peach: #FF96AD; --purple: #8B74E8; --deep-purple: #6250B0;
    --border: rgba(255,92,152,.15); --shadow: 0 14px 38px rgba(70,44,58,.08); --shadow-strong: 0 20px 48px rgba(217,70,123,.14);
    --gradient: linear-gradient(135deg,#FF96AD 0%,#FF5C98 50%,#8B74E8 100%);
    --max: 1220px; --header-h: 82px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; line-height: 1.78; overflow-x: hidden; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
a, button, summary { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid rgba(139,116,232,.45); outline-offset: 3px; }
img { max-width: 100%; height: auto; display: block; }
button { font: inherit; }
.skip-link { position: fixed; top: -100px; left: 16px; z-index: 999; background: var(--surface); padding: 10px 16px; border-radius: 12px; box-shadow: var(--shadow); }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: 80; height: var(--header-h); background: rgba(255,249,252,.92); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); }
.header-shell { max-width: var(--max); height: 100%; margin: auto; padding: 0 22px; display: grid; grid-template-columns: 1fr auto 1fr auto; align-items: center; gap: 18px; }
.desktop-nav { display: flex; align-items: center; gap: 6px; min-width: 0; }
.nav-left { justify-content: flex-start; } .nav-right { justify-content: flex-end; }
.nav-link { min-height: 44px; padding: 10px 13px; display: inline-flex; align-items: center; border-radius: 999px; font-size: 14px; white-space: nowrap; color: var(--muted); transition: .2s ease; }
.nav-link:hover, .nav-link.is-active { color: var(--berry); background: var(--pink-soft); }
.brand, .footer-logo, .drawer-brand { display: inline-flex; align-items: center; gap: 10px; white-space: nowrap; font-weight: 800; color: var(--title); }
.brand-mark { width: 38px; height: 38px; border-radius: 15px; display: inline-grid; place-items: center; color: white; background: var(--gradient); box-shadow: 0 8px 20px rgba(217,70,123,.22); }
.brand-text { font-size: 20px; letter-spacing: .03em; }
.header-actions { display: flex; gap: 10px; align-items: center; }
.mobile-experience { display: none; min-height: 44px; align-items: center; padding: 0 16px; border-radius: 999px; background: var(--gradient); color: white; font-weight: 700; }
.menu-toggle { width: 46px; height: 46px; padding: 0; border: 1px solid var(--border); border-radius: 50%; background: var(--surface); cursor: pointer; display: grid; place-content: center; gap: 4px; box-shadow: 0 8px 20px rgba(70,44,58,.06); }
.menu-toggle span { width: 18px; height: 2px; background: var(--title); border-radius: 4px; pointer-events: none; }
main { min-height: 60vh; }
.shell { width: min(calc(100% - 44px), var(--max)); margin: 0 auto; }
.section { padding: 82px 0; position: relative; }
.section-tight { padding: 56px 0; }
.section-soft { background: var(--pink-soft); }
.section-purple { background: var(--purple-soft); }
.section-white { background: var(--surface); }
.eyebrow { display: inline-block; margin-bottom: 10px; color: var(--berry); font-size: 13px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
h1, h2, h3 { margin: 0; color: var(--title); line-height: 1.25; }
h1 { font-size: clamp(38px, 6vw, 72px); letter-spacing: -.04em; }
h2 { font-size: clamp(28px, 4vw, 44px); letter-spacing: -.025em; }
h3 { font-size: 20px; }
p { margin: 0; }
.lead { margin-top: 22px; max-width: 820px; font-size: 18px; color: var(--muted); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 32px; }
.section-heading p { max-width: 680px; color: var(--muted); }
.text-link { color: var(--berry); font-weight: 700; display: inline-flex; align-items: center; gap: 7px; }
.text-link::after { content: "→"; transition: transform .2s ease; }
.text-link:hover::after { transform: translateX(4px); }
.button-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.btn { min-height: 48px; padding: 0 22px; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; font-weight: 800; }
.btn-primary { color: white; background: var(--gradient); box-shadow: var(--shadow-strong); }
.btn-secondary { background: var(--surface); border: 1px solid var(--border); color: var(--berry); }
.hero { padding: 66px 0 88px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: .75fr 1.7fr .75fr; gap: 28px; align-items: center; }
.hero-center { text-align: center; }
.hero-center .lead { margin-inline: auto; }
.hero-side { padding: 26px; border-radius: 26px; background: rgba(255,255,255,.82); box-shadow: var(--shadow); border: 1px solid var(--border); }
.hero-side h2 { font-size: 22px; margin-bottom: 10px; }
.hero-side p { font-size: 15px; color: var(--muted); }
.hero-visual { margin-top: 42px; min-height: 340px; border-radius: 34px; overflow: hidden; position: relative; background: linear-gradient(125deg,#ffe3ed,#f4efff 48%,#fff0f5); box-shadow: var(--shadow-strong); }
.hero-visual::before, .hero-visual::after { content: ""; position: absolute; border-radius: 50%; filter: blur(2px); pointer-events: none; }
.hero-visual::before { width: 320px; height: 320px; left: 8%; top: 10%; background: rgba(255,92,152,.16); }
.hero-visual::after { width: 280px; height: 280px; right: 10%; bottom: -40px; background: rgba(139,116,232,.18); }
.visual-cards { position: absolute; inset: 0; display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; align-items: center; padding: 48px 7%; }
.visual-card { min-height: 210px; border-radius: 28px; padding: 26px; background: rgba(255,255,255,.86); border: 1px solid rgba(255,255,255,.7); box-shadow: 0 20px 45px rgba(70,44,58,.09); transform: rotate(-2deg); }
.visual-card:nth-child(2) { transform: translateY(-16px) rotate(2deg); }
.visual-card:nth-child(3) { transform: rotate(1deg); }
.visual-icon { width: 48px; height: 48px; border-radius: 17px; display: grid; place-items: center; color: white; background: var(--gradient); font-size: 22px; margin-bottom: 36px; }
.visual-card strong { display: block; color: var(--title); font-size: 18px; margin-bottom: 8px; }
.visual-card span { color: var(--muted); font-size: 14px; }
.index-grid, .card-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.index-card, .content-card { padding: 26px; border-radius: 24px; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); }
.index-card h3, .content-card h3 { margin-bottom: 10px; }
.index-card p, .content-card p { color: var(--muted); margin-bottom: 18px; }
.story-layout { display: grid; grid-template-columns: 1.25fr .75fr; gap: 24px; }
.story-main { min-height: 520px; border-radius: 30px; padding: 34px; display: flex; flex-direction: column; justify-content: end; background: linear-gradient(155deg,#fff,#fff0f5); border: 1px solid var(--border); box-shadow: var(--shadow); }
.story-stack { display: grid; gap: 16px; }
.story-mini { padding: 22px; background: var(--surface); border-radius: 22px; border: 1px solid var(--border); }
.tag { display: inline-flex; padding: 5px 10px; border-radius: 999px; background: var(--purple-soft); color: var(--deep-purple); font-size: 12px; font-weight: 800; margin-bottom: 12px; }
.gallery-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.gallery-item { min-height: 280px; padding: 24px; border-radius: 28px; display: flex; flex-direction: column; justify-content: end; overflow: hidden; position: relative; background: linear-gradient(160deg,var(--pink-soft),var(--purple-soft)); border: 1px solid var(--border); }
.gallery-item::before { content: ""; position: absolute; width: 150px; height: 150px; border-radius: 50%; right: -30px; top: -25px; background: rgba(255,255,255,.65); pointer-events: none; }
.gallery-item > * { position: relative; z-index: 1; }
.gallery-item p { color: var(--muted); margin: 9px 0 15px; }
.interest-cloud { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.interest-card { min-height: 210px; padding: 22px; border-radius: 24px; background: var(--surface); border: 1px solid var(--border); }
.interest-card:nth-child(2n) { background: var(--purple-soft); }
.interest-card p { color: var(--muted); margin: 10px 0 16px; }
.topic-list { display: grid; gap: 14px; }
.topic-item { display: grid; grid-template-columns: 58px 1fr auto; align-items: center; gap: 18px; padding: 22px; border-radius: 24px; background: var(--surface); border: 1px solid var(--border); }
.topic-no { width: 52px; height: 52px; border-radius: 18px; display: grid; place-items: center; background: var(--pink-soft); color: var(--berry); font-weight: 900; }
.topic-item p { color: var(--muted); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: center; }
.paper { padding: 36px; border-radius: 30px; background: linear-gradient(#fff 31px,#f0e7eb 32px); background-size: 100% 32px; border: 1px solid var(--border); box-shadow: var(--shadow); }
.paper p { margin-bottom: 18px; }
.feature-list { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; margin-top: 24px; }
.feature { padding: 18px; border-radius: 20px; background: rgba(255,255,255,.78); border: 1px solid var(--border); }
.feature strong { display: block; color: var(--title); margin-bottom: 5px; }
.rule-grid, .review-grid, .faq-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.rule-card, .review-card { padding: 24px; border-radius: 24px; background: var(--surface); border: 1px solid var(--border); }
.rule-card h3, .review-card h3 { margin-bottom: 8px; }
.rule-card p, .review-card p { color: var(--muted); }
.dual-panels { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.info-panel { padding: 32px; border-radius: 30px; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); }
.info-panel ul { margin: 18px 0 20px; padding-left: 20px; }
.info-panel li { margin: 8px 0; }
details { background: var(--surface); border: 1px solid var(--border); border-radius: 20px; padding: 0 22px; }
details + details { margin-top: 12px; }
summary { min-height: 60px; display: flex; align-items: center; cursor: pointer; font-weight: 800; color: var(--title); }
details p { padding: 0 0 22px; color: var(--muted); }
.page-hero { padding: 70px 0 52px; background: linear-gradient(180deg,var(--pink-soft),transparent); }
.page-hero .lead { max-width: 900px; }
.page-hero-meta { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 10px; }
.page-hero-meta span { padding: 7px 12px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); color: var(--muted); font-size: 13px; }
.article-grid { display: grid; grid-template-columns: minmax(0,1.4fr) minmax(260px,.6fr); gap: 28px; align-items: start; }
.article-main { display: grid; gap: 22px; }
.article-section { padding: 30px; border-radius: 28px; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); }
.article-section h2 { font-size: 28px; margin-bottom: 15px; }
.article-section p + p { margin-top: 14px; }
.article-section ul, .article-section ol { margin: 16px 0 0; padding-left: 22px; }
.article-section li { margin: 9px 0; }
.side-card { position: sticky; top: calc(var(--header-h) + 22px); padding: 26px; border-radius: 26px; background: var(--purple-soft); border: 1px solid rgba(139,116,232,.16); }
.side-card h2 { font-size: 22px; margin-bottom: 14px; }
.side-card a { min-height: 42px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(98,80,176,.12); color: var(--deep-purple); font-weight: 700; }
.steps { counter-reset: step; display: grid; gap: 14px; }
.step { counter-increment: step; padding: 22px 22px 22px 72px; position: relative; border-radius: 22px; background: var(--gray-soft); }
.step::before { content: counter(step); position: absolute; left: 20px; top: 20px; width: 34px; height: 34px; border-radius: 12px; display: grid; place-items: center; color: white; background: var(--gradient); font-weight: 900; }
.notice-box { padding: 24px; border-radius: 24px; background: var(--pink-soft); border: 1px solid var(--border); }
.notice-box strong { display: block; color: var(--berry); margin-bottom: 6px; }
.site-footer { background: #30252B; color: #FFEAF2; padding: 66px 0 calc(28px + env(safe-area-inset-bottom)); }
.footer-shell { width: min(calc(100% - 44px), var(--max)); margin: auto; display: grid; grid-template-columns: 1.4fr repeat(4,1fr); gap: 34px; }
.site-footer .brand-text, .site-footer h2 { color: white; }
.footer-brand p { margin-top: 18px; color: #d8c9d0; max-width: 320px; }
.footer-group { display: flex; flex-direction: column; gap: 8px; }
.footer-group h2 { font-size: 15px; margin-bottom: 8px; }
.footer-group a { color: #e9dce2; font-size: 14px; }
.footer-group a:hover { color: white; }
.footer-note { width: min(calc(100% - 44px), var(--max)); margin: 40px auto 0; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.1); display: flex; justify-content: space-between; gap: 28px; color: #cbbbc3; font-size: 13px; }
.overlay { position: fixed; inset: 0; z-index: 90; background: rgba(49,38,44,.28); opacity: 0; visibility: hidden; pointer-events: none; transition: opacity .22s ease, visibility .22s ease; }
.overlay.is-open { opacity: 1; visibility: visible; pointer-events: auto; }
.channel-panel { position: fixed; z-index: 100; left: 0; right: 0; top: var(--header-h); max-height: calc(100vh - var(--header-h)); overflow-y: auto; padding: 30px max(22px,calc((100vw - var(--max))/2)); background: var(--surface); box-shadow: var(--shadow-strong); transform: translateY(-18px); opacity: 0; visibility: hidden; pointer-events: none; transition: .24s ease; }
.channel-panel.is-open { transform: none; opacity: 1; visibility: visible; pointer-events: auto; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 24px; }
.panel-head h2 { font-size: 30px; }
.panel-close, .drawer-close { min-height: 44px; padding: 0 16px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface); color: var(--berry); cursor: pointer; }
.channel-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.channel-column { padding: 20px; border-radius: 22px; background: var(--gray-soft); }
.channel-column h3 { margin-bottom: 12px; }
.channel-column a { display: block; padding: 12px 0; border-bottom: 1px solid rgba(81,69,76,.08); }
.channel-column strong { display: block; color: var(--title); }
.channel-column span { display: block; color: var(--muted); font-size: 13px; line-height: 1.6; margin-top: 4px; }
.mobile-drawer { position: fixed; z-index: 100; top: 0; right: 0; width: min(88vw,390px); height: 100dvh; overflow-y: auto; background: var(--surface); transform: translateX(102%); visibility: hidden; pointer-events: none; transition: .24s ease; box-shadow: -18px 0 50px rgba(49,38,44,.16); }
.mobile-drawer.is-open { transform: none; visibility: visible; pointer-events: auto; }
.drawer-head { position: sticky; top: 0; z-index: 2; padding: 18px; display: flex; align-items: center; justify-content: space-between; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--border); }
.drawer-nav { padding: 10px 18px 34px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.drawer-nav a { min-height: 48px; padding: 10px 12px; display: flex; align-items: center; border-radius: 14px; background: var(--gray-soft); }
.mobile-bottom-nav { display: none; }
@media (max-width: 1080px) {
    .header-shell { grid-template-columns: 1fr auto 1fr auto; gap: 8px; padding-inline: 14px; }
    .nav-link { padding-inline: 8px; font-size: 13px; }
    .brand-text { font-size: 18px; }
    .footer-shell { grid-template-columns: 1.4fr repeat(2,1fr); }
    .hero-grid { grid-template-columns: 1fr 1.5fr 1fr; }
}
@media (max-width: 820px) {
    :root { --header-h: 70px; }
    body { padding-bottom: calc(70px + env(safe-area-inset-bottom)); }
    .desktop-nav { display: none; }
    .header-shell { grid-template-columns: 1fr auto; padding-inline: 16px; }
    .brand { justify-self: start; }
    .header-actions { justify-self: end; }
    .mobile-experience { display: inline-flex; }
    .hero { padding-top: 38px; }
    .hero-grid { grid-template-columns: 1fr; }
    .hero-center { grid-row: 1; text-align: left; }
    .hero-center .lead { margin-inline: 0; }
    .hero-side { padding: 20px; }
    .hero-visual { min-height: 620px; border-radius: 26px; }
    .visual-cards { grid-template-columns: 1fr; padding: 28px; }
    .visual-card { min-height: 160px; transform: none !important; }
    .visual-card:nth-child(2) { transform: none; }
    .visual-icon { margin-bottom: 18px; }
    .section { padding: 62px 0; }
    .shell { width: min(calc(100% - 32px), var(--max)); }
    .section-heading { align-items: start; flex-direction: column; }
    .index-grid, .card-grid, .gallery-grid { grid-template-columns: 1fr 1fr; }
    .story-layout, .split, .article-grid, .dual-panels { grid-template-columns: 1fr; }
    .story-main { min-height: 390px; }
    .interest-cloud { grid-template-columns: 1fr 1fr; }
    .topic-item { grid-template-columns: 52px 1fr; }
    .topic-item .text-link { grid-column: 2; }
    .side-card { position: static; }
    .footer-shell { grid-template-columns: 1fr 1fr; width: min(calc(100% - 32px), var(--max)); }
    .footer-brand { grid-column: 1 / -1; }
    .footer-note { width: min(calc(100% - 32px), var(--max)); flex-direction: column; }
    .channel-panel { display: none; }
    .mobile-bottom-nav { position: fixed; z-index: 70; left: 0; right: 0; bottom: 0; height: calc(64px + env(safe-area-inset-bottom)); padding-bottom: env(safe-area-inset-bottom); display: grid; grid-template-columns: repeat(4,1fr); background: rgba(255,255,255,.96); border-top: 1px solid var(--border); box-shadow: 0 -8px 24px rgba(70,44,58,.07); }
    .mobile-bottom-nav a { min-height: 64px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; color: var(--muted); font-size: 12px; }
    .mobile-bottom-nav span { font-size: 20px; line-height: 1; }
    .mobile-bottom-nav a.is-active { color: var(--berry); font-weight: 800; }
}
@media (max-width: 560px) {
    h1 { font-size: 42px; }
    .brand-mark { width: 34px; height: 34px; border-radius: 13px; }
    .brand-text { font-size: 17px; }
    .mobile-experience { padding-inline: 13px; }
    .index-grid, .card-grid, .gallery-grid, .interest-cloud, .rule-grid, .review-grid, .faq-grid, .feature-list { grid-template-columns: 1fr; }
    .hero-visual { min-height: 650px; }
    .article-section, .paper, .info-panel { padding: 24px; }
    .footer-shell { grid-template-columns: 1fr; }
    .footer-brand { grid-column: auto; }
    .drawer-nav { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}