:root {
    --bg: #F5F7FF;
    --nav: rgba(12, 18, 40, 0.94);
    --title: #131A35;
    --brand: #5B6CFF;
    --deep: #16213E;
    --cyan: #00D4FF;
    --gold: #FFC857;
    --rose: #D94F70;
    --lavender: #7A5CFF;
    --text: #1F2740;
    --muted: #66708A;
    --soft: #9AA4BA;
    --card: #FFFFFF;
    --dark-card: #11182F;
    --blue-card: #EFF8FF;
    --border: rgba(91, 108, 255, 0.18);
    --shadow: 0 20px 46px rgba(25, 43, 91, 0.14);
    --gradient: linear-gradient(135deg, #5B6CFF 0%, #7A5CFF 48%, #00D4FF 100%);
    --radius: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    min-width: 320px;
    overflow-x: hidden;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.75;
    text-rendering: optimizeLegibility;
}
body.drawer-open { overflow: hidden; }
a { color: inherit; }
img { max-width: 100%; height: auto; }
button, a { -webkit-tap-highlight-color: transparent; }
.skip-link { position: fixed; left: 12px; top: -80px; z-index: 12000; background: #fff; color: var(--title); padding: 10px 16px; border-radius: 10px; }
.skip-link:focus { top: 12px; }

.site-header {
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 9999;
    background: var(--nav);
    backdrop-filter: blur(12px);
    box-shadow: 0 8px 26px rgba(25, 43, 91, 0.16);
}
.header-inner {
    width: min(1280px, calc(100% - 40px));
    min-height: 72px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 28px;
}
.site-logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: #fff; min-width: max-content; }
.site-logo img { width: auto; max-width: 132px; max-height: 44px; display: block; object-fit: contain; }
.site-logo strong { font-size: 20px; letter-spacing: .08em; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: 8px; min-width: 0; }
.nav-core a { color: #EEF2FF; text-decoration: none; border-radius: 999px; padding: 8px 12px; white-space: nowrap; font-size: 15px; transition: .25s ease; }
.nav-core a:hover, .nav-core a.active { color: #fff; background: rgba(0, 212, 255, 0.16); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 11px 24px;
    border: 0;
    border-radius: 999px;
    background: var(--gradient);
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    box-shadow: 0 14px 32px rgba(91, 108, 255, 0.22);
    transition: transform .25s ease, box-shadow .25s ease;
}
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 18px 36px rgba(91, 108, 255, .3); }
.compact-btn { min-height: 42px; padding: 9px 18px; font-size: 14px; white-space: nowrap; }
.secondary-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 10px 22px; border: 1px solid rgba(91,108,255,.28); border-radius: 999px; color: var(--brand); background: rgba(255,255,255,.76); text-decoration: none; font-weight: 700; }
.text-link { color: var(--brand); text-decoration: none; font-weight: 700; }
.text-link:hover { text-decoration: underline; }
.menu-button { width: 44px; height: 44px; border: 1px solid rgba(255,255,255,.18); border-radius: 14px; background: rgba(255,255,255,.08); padding: 11px; cursor: pointer; }
.menu-button span { display: block; height: 2px; margin: 4px 0; border-radius: 4px; background: #fff; }
.mobile-menu-button { display: none; }

.drawer-overlay { position: fixed; inset: 0; z-index: 10000; background: rgba(5, 10, 28, .56); opacity: 0; pointer-events: none; transition: opacity .25s ease; }
.drawer-overlay.is-open { opacity: 1; pointer-events: auto; }
.site-drawer { position: fixed; top: 0; right: 0; z-index: 10001; width: min(400px, 92vw); height: 100dvh; overflow-y: auto; transform: translateX(105%); transition: transform .28s ease; background: #0F1730; color: #EEF2FF; padding: 22px; box-shadow: -18px 0 50px rgba(6, 10, 28, .34); }
.site-drawer.is-open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.drawer-brand { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-size: 20px; font-weight: 800; }
.drawer-brand img { width: auto; max-width: 124px; max-height: 42px; object-fit: contain; }
.drawer-close { width: 42px; height: 42px; border: 0; border-radius: 50%; background: rgba(255,255,255,.1); color: #fff; font-size: 28px; cursor: pointer; }
.drawer-intro { margin: 18px 0; padding: 16px; border-radius: 18px; background: linear-gradient(135deg, rgba(91,108,255,.22), rgba(0,212,255,.12)); color: #DDE5FF; }
.drawer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.drawer-nav a { display: block; padding: 11px 12px; border-radius: 12px; color: #EEF2FF; text-decoration: none; background: rgba(255,255,255,.045); }
.drawer-nav a:hover { background: rgba(0,212,255,.14); }
.drawer-btn { width: 100%; margin-top: 18px; }

main { min-height: 65vh; }
.section { padding: 84px 0; }
.section-tight { padding: 56px 0; }
.container { width: min(1200px, calc(100% - 40px)); margin: 0 auto; }
.narrow { width: min(860px, calc(100% - 40px)); margin: 0 auto; }
.section-head { max-width: 760px; margin-bottom: 34px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-kicker, .eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 10px; color: #A97800; font-weight: 800; letter-spacing: .1em; font-size: 13px; text-transform: uppercase; }
.section-kicker::before, .eyebrow::before { content: ""; width: 28px; height: 3px; border-radius: 99px; background: var(--gradient); }
h1, h2, h3, .section-title { color: var(--title); line-height: 1.25; margin-top: 0; }
h1 { font-size: clamp(42px, 7vw, 78px); letter-spacing: -.04em; }
h2 { font-size: clamp(30px, 4vw, 48px); letter-spacing: -.025em; }
h3 { font-size: 21px; }
p { margin-top: 0; color: var(--muted); }
.lead { font-size: clamp(18px, 2vw, 22px); color: #3B4664; }
.muted { color: var(--soft); }

.home-hero { position: relative; isolation: isolate; overflow: hidden; padding: 78px 0 68px; background: radial-gradient(circle at 12% 15%, rgba(122,92,255,.22), transparent 28%), radial-gradient(circle at 88% 12%, rgba(0,212,255,.2), transparent 25%), linear-gradient(145deg, #FAF7FF 0%, #EDF7FF 55%, #FFF7FB 100%); }
.home-hero::before, .home-hero::after { content: ""; position: absolute; border-radius: 50%; filter: blur(4px); z-index: -1; }
.home-hero::before { width: 220px; height: 220px; background: rgba(255,200,87,.25); left: -90px; bottom: 20px; }
.home-hero::after { width: 300px; height: 300px; background: rgba(217,79,112,.12); right: -130px; bottom: -90px; }
.hero-grid { display: grid; grid-template-columns: 1.03fr .97fr; align-items: center; gap: 48px; }
.hero-copy h1 { margin-bottom: 14px; }
.hero-subtitle { font-size: clamp(24px, 3vw, 38px); color: var(--deep); font-weight: 800; margin-bottom: 18px; }
.hero-copy p { max-width: 720px; }
.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 { padding: 9px 13px; border: 1px solid rgba(91,108,255,.2); background: rgba(255,255,255,.74); border-radius: 999px; color: #495371; font-weight: 700; }
.hero-visual { position: relative; min-width: 0; }
.hero-visual img { width: 100%; max-height: 610px; object-fit: contain; display: block; filter: drop-shadow(0 32px 48px rgba(38, 53, 105, .2)); }
.floating-card { position: absolute; padding: 14px 16px; border: 1px solid rgba(91,108,255,.16); border-radius: 18px; background: rgba(255,255,255,.9); box-shadow: var(--shadow); backdrop-filter: blur(10px); font-weight: 800; color: var(--title); }
.floating-card.one { left: -20px; bottom: 18%; }
.floating-card.two { right: -12px; top: 13%; }

.highlight-strip { margin-top: -18px; position: relative; z-index: 2; }
.highlight-grid { display: grid; grid-template-columns: repeat(4, 1fr); background: #fff; border: 1px solid var(--border); border-radius: 24px; box-shadow: var(--shadow); overflow: hidden; }
.highlight-item { padding: 24px; position: relative; }
.highlight-item + .highlight-item::before { content: ""; position: absolute; left: 0; top: 22px; bottom: 22px; width: 1px; background: var(--border); }
.highlight-item h3 { margin-bottom: 7px; }
.highlight-item p { margin-bottom: 0; font-size: 14px; }

.capsule-grid { display: flex; flex-wrap: wrap; gap: 12px; }
.capsule { flex: 1 1 205px; min-height: 86px; padding: 14px 17px; border: 1px solid var(--border); border-radius: 18px; background: rgba(255,255,255,.75); text-decoration: none; transition: .25s ease; }
.capsule:hover { transform: translateY(-3px); background: #fff; box-shadow: 0 16px 32px rgba(25,43,91,.1); }
.capsule strong { display: block; color: var(--title); margin-bottom: 2px; }
.capsule span { color: var(--muted); font-size: 13px; }

.media-split, .two-column { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; align-items: stretch; }
.media-copy, .media-card, .card, .zone-card, .info-card, .review-card { background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: var(--radius); }
.media-copy { padding: clamp(28px, 4vw, 52px); }
.media-card { overflow: hidden; padding: 20px; }
.media-card img, .content-img, .zone-card img, .app-section img, .hero-visual img { max-width: 100%; height: auto; object-fit: contain; }
.media-card img { width: 100%; max-height: 520px; display: block; }
.feature-list { display: grid; gap: 12px; margin: 22px 0; padding: 0; list-style: none; }
.feature-list li { position: relative; padding-left: 28px; color: #4A5573; }
.feature-list li::before { content: "✓"; position: absolute; left: 0; top: 0; width: 20px; height: 20px; border-radius: 50%; background: rgba(91,108,255,.12); color: var(--brand); display: grid; place-items: center; font-weight: 900; font-size: 12px; }

.zone-card { padding: 20px; overflow: hidden; }
.zone-card img { width: 100%; max-height: 300px; margin-bottom: 18px; border-radius: 18px; background: linear-gradient(135deg,#EEF1FF,#EAFBFF); }
.zone-card p { margin-bottom: 14px; }
.zone-card .mini-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 9px; margin-bottom: 14px; }
.mini-points span { padding: 9px 11px; border-radius: 12px; background: #F4F6FF; color: #52607E; font-size: 13px; }

.three-column { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.info-card { padding: 22px; overflow: hidden; }
.info-card img { width: 100%; height: 190px; object-fit: contain; margin-bottom: 14px; border-radius: 16px; background: #F2F6FF; }
.info-card .text-link { display: inline-flex; margin-top: 8px; }

.safety-band { position: relative; overflow: hidden; background: linear-gradient(135deg, #101832 0%, #172449 58%, #14365A 100%); color: #EEF2FF; }
.safety-band h2, .safety-band h3 { color: #fff; }
.safety-band p { color: #CFD8F1; }
.safety-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.safety-card { display: grid; grid-template-columns: 150px 1fr; align-items: center; gap: 20px; padding: 22px; border-radius: 22px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); }
.safety-card img { width: 100%; max-height: 170px; object-fit: contain; }

.review-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.review-card { padding: 22px; }
.review-card p { color: #46516F; }
.review-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--soft); font-size: 13px; }
.review-meta strong { color: var(--title); }
.stars { color: #E39E00; letter-spacing: 2px; }

.faq-list { display: grid; gap: 14px; }
details { background: #fff; border: 1px solid var(--border); border-radius: 18px; box-shadow: 0 12px 28px rgba(25,43,91,.08); overflow: hidden; }
summary { list-style: none; cursor: pointer; padding: 19px 52px 19px 20px; color: var(--title); font-weight: 800; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); color: var(--brand); font-size: 24px; }
details[open] summary::after { content: "−"; }
details p { padding: 0 20px 20px; margin: 0; }

.notice-panel { padding: clamp(28px, 4vw, 48px); border-radius: 28px; background: linear-gradient(135deg, #FFF7DC 0%, #FFF 42%, #EEF7FF 100%); border: 1px solid rgba(255,200,87,.42); box-shadow: var(--shadow); }
.notice-panel h2 { margin-bottom: 14px; }
.notice-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 22px; }
.notice-grid div { padding: 14px; border-radius: 16px; background: rgba(255,255,255,.72); color: #525C78; font-size: 14px; }

.page-hero { position: relative; overflow: hidden; padding: 76px 0; background: radial-gradient(circle at 20% 15%, rgba(122,92,255,.2), transparent 30%), radial-gradient(circle at 85% 20%, rgba(0,212,255,.18), transparent 28%), linear-gradient(135deg, #F9F7FF, #EDF8FF); }
.page-hero-grid { display: grid; grid-template-columns: 1fr .78fr; align-items: center; gap: 42px; }
.page-hero h1 { font-size: clamp(40px, 6vw, 68px); margin-bottom: 16px; }
.page-hero-image { padding: 18px; border-radius: 28px; background: rgba(255,255,255,.68); border: 1px solid var(--border); box-shadow: var(--shadow); }
.page-hero-image img { width: 100%; max-height: 420px; object-fit: contain; display: block; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; color: var(--muted); font-size: 14px; }
.breadcrumbs a { color: var(--brand); text-decoration: none; }
.content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 28px; align-items: start; }
.article-card { padding: clamp(26px, 4vw, 46px); background: #fff; border: 1px solid var(--border); border-radius: 26px; box-shadow: var(--shadow); }
.article-card h2 { font-size: clamp(26px, 3vw, 38px); margin-top: 34px; }
.article-card h2:first-child { margin-top: 0; }
.article-card p { color: #55607D; }
.article-card .content-img { display: block; width: 100%; max-height: 500px; margin: 26px 0; border-radius: 22px; background: #F1F5FF; }
.side-stack { display: grid; gap: 18px; position: sticky; top: 96px; }
.side-card { padding: 22px; border-radius: 22px; background: #fff; border: 1px solid var(--border); box-shadow: 0 16px 36px rgba(25,43,91,.1); }
.side-card.dark { background: var(--dark-card); border-color: rgba(255,255,255,.08); }
.side-card.dark h3 { color: #fff; }
.side-card.dark p, .side-card.dark li { color: #CFD7EE; }
.side-card ul { margin: 0; padding-left: 20px; color: var(--muted); }
.service-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 26px 0; }
.service-cards .card { padding: 18px; box-shadow: none; }
.service-cards .card h3 { font-size: 18px; margin-bottom: 8px; }
.quote-card { margin: 28px 0; padding: 24px; border-radius: 20px; background: linear-gradient(135deg, #F1EEFF, #ECFAFF); border: 1px solid var(--border); }
.quote-card blockquote { margin: 0 0 10px; color: #3F4A67; font-size: 18px; }
.quote-card cite { color: var(--brand); font-style: normal; font-weight: 700; }
.inline-notice { margin-top: 28px; padding: 20px; border-left: 4px solid var(--gold); border-radius: 0 16px 16px 0; background: #FFF9E8; }
.inline-notice strong { color: #805D00; }

.site-footer { background: #0B1024; color: #EEF2FF; padding-top: 64px; }
.footer-inner { width: min(1200px, calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: 1.05fr 1.95fr; gap: 52px; }
.footer-brand p { color: #AAB5D2; max-width: 420px; }
.footer-logo { margin-bottom: 16px; }
.footer-links { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.footer-links h3 { color: #fff; font-size: 16px; margin-bottom: 12px; }
.footer-links a { display: block; color: #AAB5D2; text-decoration: none; margin: 8px 0; font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-bottom { margin-top: 46px; padding: 18px 20px; border-top: 1px solid rgba(255,255,255,.08); text-align: center; }
.footer-bottom p { margin: 0; color: #8F9BB9; font-size: 13px; }
.mobile-quick-nav { display: none; }

@media (max-width: 1080px) {
    .header-inner { gap: 16px; }
    .nav-core { gap: 2px; }
    .nav-core a { padding: 8px 8px; font-size: 14px; }
    .hero-grid, .page-hero-grid { gap: 30px; }
    .three-column { grid-template-columns: 1fr 1fr; }
    .content-grid { grid-template-columns: 1fr 300px; }
    .service-cards { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
    .header-inner { width: min(100% - 24px, 760px); grid-template-columns: 44px 1fr auto; min-height: 66px; }
    .mobile-menu-button { display: block; }
    .desktop-menu-button, .nav-core { display: none; }
    .site-logo { justify-self: center; }
    .site-logo strong { display: none; }
    .site-logo img { max-width: 112px; max-height: 38px; }
    .compact-btn { min-height: 38px; padding: 8px 13px; font-size: 13px; }
    .hero-grid, .page-hero-grid, .media-split, .two-column, .safety-grid, .content-grid, .footer-inner { grid-template-columns: 1fr; }
    .hero-copy { text-align: center; }
    .hero-copy p { margin-left: auto; margin-right: auto; }
    .hero-actions, .hero-points { justify-content: center; }
    .hero-visual { max-width: 640px; margin: 0 auto; }
    .highlight-grid { grid-template-columns: 1fr 1fr; }
    .highlight-item:nth-child(3)::before { display: none; }
    .review-grid { grid-template-columns: 1fr 1fr; }
    .notice-grid { grid-template-columns: 1fr 1fr; }
    .side-stack { position: static; grid-template-columns: 1fr 1fr; }
    .footer-links { grid-template-columns: 1fr 1fr; }
    .footer-brand { text-align: center; }
    .footer-brand p { margin-left: auto; margin-right: auto; }
    .footer-logo { justify-content: center; }
}

@media (max-width: 640px) {
    body { padding-bottom: 72px; }
    .container, .narrow { width: min(100% - 24px, 560px); }
    .section { padding: 60px 0; }
    .section-tight { padding: 42px 0; }
    .home-hero { padding: 56px 0 48px; }
    h1 { font-size: 44px; }
    .hero-subtitle { font-size: 25px; }
    .floating-card { display: none; }
    .highlight-strip { margin-top: 14px; }
    .highlight-grid, .three-column, .review-grid, .notice-grid, .side-stack, .service-cards { grid-template-columns: 1fr; }
    .highlight-item + .highlight-item::before { left: 20px; right: 20px; top: 0; bottom: auto; width: auto; height: 1px; }
    .highlight-item:nth-child(3)::before { display: block; }
    .safety-card { grid-template-columns: 96px 1fr; gap: 14px; }
    .zone-card .mini-points { grid-template-columns: 1fr; }
    .footer-links { grid-template-columns: 1fr 1fr; gap: 12px; }
    .site-footer { padding-top: 48px; }
    .drawer-nav { grid-template-columns: 1fr; }
    .mobile-quick-nav { position: fixed; left: 10px; right: 10px; bottom: 8px; z-index: 9998; display: grid; grid-template-columns: repeat(4, 1fr); padding: 8px 6px calc(8px + env(safe-area-inset-bottom)); border: 1px solid rgba(91,108,255,.18); border-radius: 20px; background: rgba(255,255,255,.93); backdrop-filter: blur(14px); box-shadow: 0 16px 36px rgba(25,43,91,.18); }
    .mobile-quick-nav a { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1px; color: #4F5A78; text-decoration: none; font-size: 12px; }
    .mobile-quick-nav span { color: var(--brand); font-size: 19px; line-height: 1; }
    .article-card { padding: 23px 20px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .001ms !important; transition-duration: .001ms !important; }
}