:root {
    --bg: #fff8f0;
    --ink: #2a1f1a;
    --title: #24130c;
    --muted: #75645a;
    --subtle: #a9978c;
    --brand: #ff6b35;
    --deep: #2b1a3f;
    --aqua: #00e5b0;
    --gold: #ffd166;
    --rose: #b8336a;
    --blue-soft: #e9fff8;
    --gold-soft: #fff1c7;
    --card: #fff;
    --border: rgba(255, 107, 53, .18);
    --shadow: 0 20px 46px rgba(97, 45, 16, .14);
    --radius: 22px;
    --container: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
}
body.drawer-open { overflow: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 12000; background: #fff; color: var(--title); padding: 10px 16px; border-radius: 10px; box-shadow: var(--shadow); }
.skip-link:focus { top: 12px; }
.section-shell { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.content-section { padding: 78px 0; }
.soft-section { background: linear-gradient(135deg, rgba(233,255,248,.9), rgba(255,241,199,.7)); }
.section-kicker { display: inline-flex; color: #7a4c00; background: var(--gold-soft); border: 1px solid rgba(255,209,102,.6); border-radius: 999px; padding: 5px 12px; font-size: .82rem; font-weight: 800; letter-spacing: .08em; }
h1, h2, h3 { color: var(--title); line-height: 1.25; margin-top: 0; }
h1 { font-size: clamp(2.45rem, 6vw, 5.4rem); letter-spacing: -.04em; }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.75rem); }
h3 { font-size: 1.12rem; }
p { margin: 0 0 1em; }
.lead { color: var(--muted); font-size: clamp(1rem, 1.5vw, 1.18rem); max-width: 760px; }
.section-heading { max-width: 760px; margin-bottom: 34px; }
.section-heading p { color: var(--muted); }

.site-header { position: sticky; top: 0; width: 100%; z-index: 9999; background: rgba(38,20,12,.94); backdrop-filter: blur(14px); box-shadow: 0 8px 26px rgba(97,45,16,.16); }
.header-inner { width: min(calc(100% - 36px), 1280px); min-height: 72px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.site-logo { display: inline-flex; align-items: center; gap: 10px; color: #fff3e8; text-decoration: none; font-weight: 900; font-size: 1.15rem; flex: 0 0 auto; }
.site-logo img { width: auto; max-width: 132px; max-height: 44px; object-fit: contain; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: 4px; }
.nav-core a { color: #fff3e8; text-decoration: none; border-radius: 999px; padding: 8px 11px; white-space: nowrap; font-size: .94rem; }
.nav-core a:hover, .nav-core a.active { color: #fff; background: rgba(0,229,176,.16); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.main-btn, .outline-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; border-radius: 999px; padding: 10px 22px; font-weight: 800; text-decoration: none; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.main-btn { color: #fff; background: linear-gradient(135deg, #ff6b35 0%, #ffb703 48%, #00e5b0 100%); box-shadow: 0 14px 32px rgba(255,107,53,.22); }
.main-btn:hover, .outline-btn:hover { transform: translateY(-2px); }
.main-btn.compact { min-height: 40px; padding: 8px 16px; font-size: .9rem; }
.outline-btn { color: var(--brand); border: 1px solid rgba(255,107,53,.38); background: #fff; }
.menu-button { width: 42px; height: 42px; border-radius: 50%; border: 1px solid rgba(255,255,255,.18); background: rgba(255,255,255,.08); display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; }
.menu-button span { width: 18px; height: 2px; border-radius: 2px; background: #fff; }
.mobile-menu-button { display: none; }
.drawer-overlay { position: fixed; inset: 0; z-index: 10000; background: rgba(15,8,5,.48); opacity: 0; transition: opacity .2s ease; }
.drawer-overlay.is-open { opacity: 1; }
.site-drawer { position: fixed; right: 0; top: 0; bottom: 0; z-index: 10001; width: min(390px, 88vw); background: #fffaf6; box-shadow: -20px 0 54px rgba(36,19,12,.22); transform: translateX(104%); transition: transform .25s ease; overflow-y: auto; padding: 24px; }
.site-drawer.is-open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.drawer-head strong { color: var(--title); font-size: 1.25rem; }
.drawer-close { width: 40px; height: 40px; border: 0; border-radius: 50%; background: #f4e7df; color: var(--title); font-size: 1.55rem; line-height: 1; }
.drawer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.drawer-nav a { display: flex; align-items: center; justify-content: space-between; padding: 11px 13px; border-radius: 14px; text-decoration: none; background: #fff; border: 1px solid var(--border); color: var(--ink); }
.drawer-nav a:hover, .drawer-nav a.active { color: var(--brand); background: var(--blue-soft); }
.drawer-note { margin-top: 22px; padding: 18px; border-radius: 18px; color: #fff3e8; background: var(--deep); }
.drawer-note a { color: var(--aqua); font-weight: 700; }

.hero { position: relative; padding: clamp(70px, 8vw, 118px) 0 70px; overflow: hidden; background: radial-gradient(circle at 12% 18%, rgba(255,209,102,.48), transparent 30%), radial-gradient(circle at 88% 28%, rgba(0,229,176,.24), transparent 32%), linear-gradient(135deg, #fff8f0 0%, #f7ecff 46%, #e9fff8 100%); }
.hero::after { content: ""; position: absolute; right: -80px; bottom: -140px; width: 420px; height: 420px; border-radius: 50%; border: 70px solid rgba(184,51,106,.07); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: clamp(34px, 6vw, 78px); }
.hero-copy h1 { margin: 16px 0 18px; }
.hero-copy h1 span { display: block; color: var(--brand); font-size: .34em; letter-spacing: .04em; margin-top: 12px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; padding: 0; margin: 0; list-style: none; }
.hero-points li { background: rgba(255,255,255,.82); border: 1px solid var(--border); border-radius: 999px; padding: 7px 12px; color: var(--muted); font-size: .9rem; }
.hero-visual { position: relative; }
.hero-visual .visual-frame { padding: 18px; border-radius: 34px; background: rgba(255,255,255,.65); border: 1px solid rgba(255,255,255,.9); box-shadow: 0 34px 70px rgba(81,42,87,.18); backdrop-filter: blur(12px); }
.hero-visual img { width: 100%; max-height: 600px; object-fit: contain; border-radius: 24px; }
.floating-chip { position: absolute; padding: 10px 14px; border-radius: 16px; background: #fff; box-shadow: var(--shadow); font-weight: 800; font-size: .9rem; }
.floating-chip.one { left: -20px; top: 12%; color: var(--brand); }
.floating-chip.two { right: -16px; bottom: 12%; color: #116c59; }

.highlight-strip { margin-top: -28px; position: relative; z-index: 3; }
.highlight-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.highlight-item { background: #fff; border: 1px solid var(--border); border-radius: 20px; padding: 20px; box-shadow: var(--shadow); }
.highlight-item strong { display: block; color: var(--title); margin-bottom: 5px; }
.highlight-item p { color: var(--muted); font-size: .9rem; margin: 0; }

.channel-pills { display: flex; gap: 12px; overflow-x: auto; padding: 4px 2px 18px; scrollbar-width: thin; }
.channel-pill { flex: 0 0 210px; padding: 16px; text-decoration: none; border-radius: 18px; background: #fff; border: 1px solid var(--border); }
.channel-pill strong { display: block; color: var(--title); margin-bottom: 4px; }
.channel-pill span { display: block; color: var(--muted); font-size: .85rem; }
.channel-pill:hover { background: var(--blue-soft); }

.card, .zone-card, .info-card, .review-card, .prose-card { background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: var(--radius); }
.split-layout { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 72px); align-items: center; }
.media-card { padding: 18px; }
.media-card img, .card-media img, .zone-card img, .app-section img, .content-img { width: 100%; height: auto; object-fit: contain; border-radius: 16px; }
.brand-panel { padding: clamp(24px, 4vw, 48px); }
.feature-grid { display: grid; gap: 18px; }
.feature-grid.two-col { grid-template-columns: repeat(2, 1fr); }
.feature-grid.three-col { grid-template-columns: repeat(3, 1fr); }
.zone-card { overflow: hidden; }
.zone-card .card-copy { padding: 24px; }
.zone-card .card-copy p { color: var(--muted); }
.zone-card img { max-height: 340px; background: #f8f1ec; }
.text-link { color: var(--brand); font-weight: 800; text-decoration: none; }
.text-link:hover { text-decoration: underline; }
.info-card { padding: 24px; }
.info-card p { color: var(--muted); margin-bottom: 0; }
.number-badge { display: inline-flex; width: 38px; height: 38px; align-items: center; justify-content: center; border-radius: 12px; color: var(--deep); background: var(--gold-soft); font-weight: 900; margin-bottom: 16px; }
.triple-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.triple-grid .info-card { position: relative; overflow: hidden; }
.triple-grid img { width: 100%; max-height: 220px; object-fit: contain; background: #f8f2ed; border-radius: 16px; margin-bottom: 18px; }
.safety-panel { display: grid; grid-template-columns: .9fr 1.1fr; gap: 22px; padding: 24px; background: var(--deep); border-radius: 28px; color: #fff3e8; box-shadow: var(--shadow); }
.safety-panel h2, .safety-panel h3 { color: #fff; }
.safety-panel img { border-radius: 20px; width: 100%; height: 100%; max-height: 390px; object-fit: contain; background: rgba(255,255,255,.06); }
.safety-list { display: grid; gap: 12px; }
.safety-list div { padding: 14px 16px; border-radius: 16px; background: rgba(255,255,255,.08); }
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.review-card { margin: 0; padding: 24px; }
.review-card p { color: var(--ink); }
.review-card footer { color: var(--brand); font-weight: 800; }
.faq-list { display: grid; gap: 12px; }
details { background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 0 18px; }
summary { list-style: none; cursor: pointer; padding: 17px 0; color: var(--title); font-weight: 800; }
summary::-webkit-details-marker { display: none; }
details p { padding: 0 0 18px; color: var(--muted); }
.section-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.age-notice { padding: 26px; border-radius: 24px; background: linear-gradient(135deg, #fff1c7, #e9fff8); border: 1px solid rgba(255,107,53,.2); }

.inner-hero { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(30px, 5vw, 70px); align-items: center; padding-top: clamp(62px, 8vw, 110px); padding-bottom: 66px; }
.inner-hero h1 { font-size: clamp(2.25rem, 5vw, 4.35rem); margin: 16px 0; }
.inner-hero-media { padding: 18px; border-radius: 28px; background: linear-gradient(135deg, #fff, #f5eaff); border: 1px solid var(--border); box-shadow: var(--shadow); }
.inner-hero-media img { max-height: 470px; object-fit: contain; margin: auto; }
.prose-grid { display: grid; grid-template-columns: 1.35fr .65fr; gap: 22px; align-items: start; }
.prose-card { padding: clamp(24px, 4vw, 42px); }
.prose-card p { color: var(--muted); }
.notice-card { position: sticky; top: 98px; padding: 24px; color: #fff3e8; background: var(--deep); border-radius: 22px; box-shadow: var(--shadow); }
.notice-card h2 { color: #fff; font-size: 1.35rem; }
.notice-card .text-link { color: var(--aqua); }
.steps-list { display: grid; gap: 14px; }
.step-item { display: flex; gap: 14px; padding: 18px; border-radius: 18px; background: #fff; border: 1px solid var(--border); }
.step-item > span { flex: 0 0 36px; width: 36px; height: 36px; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; color: #fff; background: var(--brand); font-weight: 900; }
.step-item h3 { margin-bottom: 4px; }
.step-item p { color: var(--muted); margin: 0; font-size: .92rem; }

.site-footer { background: #1a0f0a; color: #fff3e8; padding: 64px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 30px; }
.site-footer h2 { color: #fff; font-size: 1rem; }
.site-footer a { display: block; color: #e8d7ca; text-decoration: none; margin: 7px 0; }
.site-footer a:hover { color: var(--aqua); }
.footer-brand p { max-width: 360px; color: #cbb9ac; }
.footer-logo { margin-bottom: 16px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; align-items: center; border-top: 1px solid rgba(255,255,255,.12); margin-top: 40px; padding-top: 22px; color: #bfa99a; font-size: .88rem; }
.footer-bottom div { display: flex; gap: 14px; }
.footer-bottom a { display: inline; margin: 0; }
.mobile-bottom-nav { display: none; }

@media (max-width: 1080px) {
    .nav-core a:nth-child(3), .nav-core a:nth-child(4) { display: none; }
    .hero-grid, .inner-hero, .split-layout, .safety-panel { grid-template-columns: 1fr; }
    .hero-visual { max-width: 720px; margin-inline: auto; }
    .highlight-grid { grid-template-columns: repeat(2, 1fr); }
    .triple-grid, .feature-grid.three-col, .review-grid { grid-template-columns: repeat(2, 1fr); }
    .prose-grid { grid-template-columns: 1fr; }
    .notice-card { position: static; }
    .footer-grid { grid-template-columns: 1.2fr 1fr 1fr; }
    .footer-grid > div:last-child { grid-column: 2 / 4; }
}

@media (max-width: 760px) {
    body { padding-bottom: 72px; }
    .section-shell { width: min(calc(100% - 28px), var(--container)); }
    .content-section { padding: 56px 0; }
    .header-inner { width: calc(100% - 20px); min-height: 64px; gap: 8px; }
    .mobile-menu-button { display: inline-flex; }
    .desktop-menu-button, .nav-core { display: none; }
    .site-logo { position: absolute; left: 50%; transform: translateX(-50%); }
    .site-logo img { max-width: 90px; max-height: 36px; }
    .site-logo span { display: none; }
    .header-actions { margin-left: auto; }
    .main-btn.compact { min-height: 38px; padding: 7px 12px; font-size: .78rem; }
    .hero { padding-top: 56px; }
    .hero-grid { gap: 36px; }
    .hero-copy { text-align: center; }
    .hero-copy .lead { margin-inline: auto; }
    .hero-actions, .hero-points { justify-content: center; }
    .floating-chip.one { left: 6px; }
    .floating-chip.two { right: 6px; }
    .highlight-grid, .feature-grid.two-col, .feature-grid.three-col, .triple-grid, .review-grid { grid-template-columns: 1fr; }
    .highlight-strip { margin-top: -18px; }
    .drawer-nav { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
    .footer-grid > div:last-child { grid-column: auto; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
    .mobile-bottom-nav { position: fixed; left: 10px; right: 10px; bottom: 8px; z-index: 9000; display: grid; grid-template-columns: repeat(4, 1fr); background: rgba(36,19,12,.95); border: 1px solid rgba(255,255,255,.14); border-radius: 20px; box-shadow: 0 14px 35px rgba(36,19,12,.28); backdrop-filter: blur(12px); padding: 7px 6px calc(7px + env(safe-area-inset-bottom)); }
    .mobile-bottom-nav a { display: flex; flex-direction: column; align-items: center; gap: 2px; color: #fff3e8; text-decoration: none; font-size: .72rem; }
    .mobile-bottom-nav span { color: var(--aqua); font-size: 1rem; }
}

@media (max-width: 460px) {
    h1 { font-size: 2.55rem; }
    .hero-actions .main-btn, .hero-actions .outline-btn { flex: 1 1 130px; }
    .highlight-grid { gap: 10px; }
    .highlight-item { padding: 16px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-brand, .footer-grid > div:last-child { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
    * { scroll-behavior: auto !important; transition: none !important; }
}