:root {
  --bg: #F5F7FF; --nav: rgba(12,18,40,.94); --title: #131A35; --primary: #5B6CFF;
  --deep: #16213E; --cyan: #00D4FF; --gold: #FFC857; --rose: #D94F70;
  --lavender: #7A5CFF; --text: #1F2740; --muted: #66708A; --light-muted: #9AA4BA;
  --card: #FFFFFF; --dark-card: #11182F; --border: rgba(91,108,255,.18);
  --shadow: 0 20px 46px rgba(25,43,91,.14); --radius: 24px; --container: 1240px;
}
* { 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.drawer-open { overflow: hidden; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--lavender); }
img { max-width: 100%; height: auto; display: block; }
button, a { -webkit-tap-highlight-color: transparent; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 20000; background: #fff; padding: 10px 16px; border-radius: 10px; box-shadow: var(--shadow); }
.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,.16); }
.header-inner { width: min(calc(100% - 32px), 1280px); margin: 0 auto; min-height: 72px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 24px; }
.site-logo { display: inline-flex; align-items: center; gap: 10px; color: #fff; font-size: 23px; letter-spacing: .04em; }
.site-logo:hover { color: #fff; }
.site-logo img { width: 42px; max-height: 44px; object-fit: contain; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: 10px; min-width: 0; }
.nav-core a { color: #EEF2FF; border-radius: 999px; padding: 8px 12px; white-space: nowrap; font-size: 15px; }
.nav-core a:hover, .nav-core a.active { color: #fff; background: rgba(0,212,255,.16); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.main-btn, .secondary-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 11px 24px; border-radius: 999px; font-weight: 700; transition: .25s ease; }
.main-btn { color: #fff; background: linear-gradient(135deg,#5B6CFF 0%,#7A5CFF 48%,#00D4FF 100%); box-shadow: 0 14px 32px rgba(91,108,255,.22); }
.main-btn:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 18px 38px rgba(91,108,255,.3); }
.main-btn.compact { min-height: 40px; padding: 8px 18px; font-size: 14px; }
.secondary-btn { color: var(--primary); border: 1px solid var(--border); background: #fff; }
.menu-toggle { width: 42px; height: 42px; border: 0; border-radius: 50%; background: rgba(255,255,255,.1); display: grid; place-content: center; gap: 4px; cursor: pointer; }
.menu-toggle span { display: block; width: 18px; height: 2px; background: #fff; border-radius: 2px; }
.mobile-menu-toggle { display: none; }
.drawer-overlay { position: fixed; inset: 0; z-index: 10000; background: rgba(4,8,22,.58); backdrop-filter: blur(3px); }
.site-drawer { position: fixed; right: 0; top: 0; z-index: 10001; width: min(390px, 92vw); height: 100dvh; background: #fff; transform: translateX(104%); transition: transform .28s ease; box-shadow: -24px 0 60px rgba(9,18,48,.2); overflow-y: auto; }
.site-drawer.open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 22px; border-bottom: 1px solid var(--border); }
.drawer-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--title); font-weight: 800; font-size: 22px; }
.drawer-brand img { width: 42px; }
.drawer-close { border: 0; background: #EEF1FF; width: 40px; height: 40px; border-radius: 50%; color: var(--title); font-size: 26px; cursor: pointer; }
.drawer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 22px; }
.drawer-nav a { color: var(--text); background: #F6F7FF; border: 1px solid transparent; border-radius: 14px; padding: 11px 13px; }
.drawer-nav a:hover { border-color: var(--border); background: #fff; color: var(--primary); }
.drawer-note { margin: 0 22px 28px; padding: 16px; border-radius: 16px; background: #FFF8E8; color: #6A5630; font-size: 14px; }
.hero { position: relative; overflow: hidden; padding: 76px 0 64px; background: radial-gradient(circle at 12% 15%, rgba(122,92,255,.22), transparent 32%), radial-gradient(circle at 86% 24%, rgba(0,212,255,.18), transparent 28%), linear-gradient(135deg,#F7F4FF 0%,#EAF7FF 52%,#FFF2FA 100%); }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; filter: blur(2px); pointer-events: none; }
.hero::before { width: 220px; height: 220px; right: -70px; bottom: -70px; background: rgba(255,200,87,.18); }
.hero::after { width: 110px; height: 110px; left: 45%; top: 40px; background: rgba(217,79,112,.1); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.02fr .98fr; gap: 52px; align-items: center; }
.eyebrow, .section-kicker { display: inline-flex; align-items: center; gap: 8px; color: var(--primary); font-size: 14px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.eyebrow::before, .section-kicker::before { content: ""; width: 28px; height: 3px; border-radius: 999px; background: linear-gradient(90deg,var(--primary),var(--cyan)); }
h1, h2, h3, .section-title { color: var(--title); line-height: 1.24; margin-top: 0; }
h1 { margin: 18px 0 18px; font-size: clamp(44px, 7vw, 82px); letter-spacing: -.04em; }
h2 { font-size: clamp(29px, 4vw, 44px); margin-bottom: 16px; }
h3 { font-size: 21px; margin-bottom: 10px; }
p { margin: 0 0 16px; }
.hero-subtitle { font-size: clamp(23px, 3vw, 36px); color: var(--deep); font-weight: 800; margin-bottom: 16px; }
.hero-copy { color: var(--muted); font-size: 17px; max-width: 700px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.hero-points span, .tag { display: inline-flex; align-items: center; padding: 7px 12px; border-radius: 999px; background: rgba(255,255,255,.72); border: 1px solid var(--border); color: var(--deep); font-size: 14px; }
.hero-visual { position: relative; }
.hero-visual img { width: 100%; max-height: 590px; object-fit: contain; filter: drop-shadow(0 28px 40px rgba(31,39,64,.18)); }
.floating-note { position: absolute; right: 0; bottom: 8%; max-width: 250px; padding: 14px 16px; border-radius: 18px; background: rgba(255,255,255,.88); border: 1px solid rgba(255,255,255,.8); box-shadow: var(--shadow); color: var(--deep); font-size: 14px; backdrop-filter: blur(10px); }
.highlight-strip { margin-top: -24px; position: relative; z-index: 2; }
.highlight-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.highlight-item { background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: 20px; padding: 20px; }
.highlight-item strong { display: block; color: var(--title); margin-bottom: 6px; }
.highlight-item p { margin: 0; color: var(--muted); font-size: 14px; }
.section { padding: 82px 0; }
.section.soft { background: linear-gradient(180deg,#F8FAFF 0%,#EFF8FF 100%); }
.section.dark { background: var(--deep); color: #EAF0FF; }
.section.dark h2, .section.dark h3 { color: #fff; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 32px; }
.section-head p { max-width: 650px; color: var(--muted); }
.section.dark .section-head p { color: #C8D0E6; }
.pills { display: flex; flex-wrap: wrap; gap: 12px; }
.pill { flex: 1 1 180px; min-width: 0; padding: 16px 18px; border-radius: 999px; background: #fff; border: 1px solid var(--border); color: var(--title); box-shadow: 0 10px 24px rgba(25,43,91,.08); }
.pill small { display: block; color: var(--muted); margin-top: 2px; font-size: 12px; }
.card, .zone-card, .info-card, .review-card { background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: var(--radius); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; }
.split.reverse .media { order: 2; }
.media img, .content-img, .zone-card img, .app-section img { width: 100%; max-height: 520px; object-fit: contain; border-radius: 22px; background: linear-gradient(135deg,#EEF1FF,#E9FAFF); }
.copy-card { padding: clamp(26px,4vw,48px); }
.copy-card p { color: var(--muted); }
.feature-list { display: grid; gap: 12px; padding: 0; margin: 20px 0 0; list-style: none; }
.feature-list li { position: relative; padding-left: 28px; color: var(--text); }
.feature-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--primary); font-weight: 900; }
.card-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.card-grid.two { grid-template-columns: repeat(2,1fr); }
.zone-card { padding: 24px; display: flex; flex-direction: column; }
.zone-card img { aspect-ratio: 16/10; margin-bottom: 18px; }
.zone-card p { color: var(--muted); }
.zone-card .text-link { margin-top: auto; font-weight: 700; }
.text-link::after { content: " →"; }
.service-points { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; margin-top: 18px; }
.service-point { padding: 14px; border-radius: 16px; background: #F5F7FF; color: var(--deep); font-size: 14px; }
.safety-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.safety-card { padding: 26px; border-radius: 24px; background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); }
.safety-card img { max-height: 270px; margin: 0 auto 18px; object-fit: contain; }
.reviews { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.review-card { padding: 24px; }
.review-card p { color: var(--muted); margin-bottom: 12px; }
.review-card strong { color: var(--title); }
.faq-list { display: grid; gap: 14px; }
details { background: #fff; border: 1px solid var(--border); border-radius: 18px; padding: 0 20px; box-shadow: 0 10px 26px rgba(25,43,91,.07); }
summary { cursor: pointer; list-style: none; padding: 18px 0; color: var(--title); font-weight: 800; }
summary::-webkit-details-marker { display: none; }
details p { color: var(--muted); padding: 0 0 18px; margin: 0; }
.notice { padding: 28px; border-radius: 24px; background: linear-gradient(135deg,#FFF4D6,#F5EDFF 52%,#EAF7FF); border: 1px solid rgba(255,200,87,.35); }
.notice h2 { font-size: 28px; }
.page-hero { padding: 70px 0 50px; background: radial-gradient(circle at 12% 20%,rgba(122,92,255,.18),transparent 28%), linear-gradient(135deg,#F8F5FF,#EAF7FF); }
.page-hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 42px; align-items: center; }
.page-hero h1 { font-size: clamp(38px,6vw,64px); }
.page-hero img { width: 100%; max-height: 430px; object-fit: contain; filter: drop-shadow(0 24px 32px rgba(31,39,64,.17)); }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; color: var(--muted); font-size: 14px; margin-bottom: 16px; }
.breadcrumb a { color: var(--primary); }
.longform { display: grid; grid-template-columns: minmax(0,1fr) 310px; gap: 34px; align-items: start; }
.article-card { padding: clamp(26px,4vw,50px); }
.article-card h2 { font-size: 31px; margin-top: 36px; }
.article-card h2:first-child { margin-top: 0; }
.article-card h3 { margin-top: 24px; }
.article-card p, .article-card li { color: var(--muted); }
.article-card ul { padding-left: 20px; }
.side-stack { display: grid; gap: 18px; position: sticky; top: 96px; }
.side-card { padding: 22px; border-radius: 20px; background: #fff; border: 1px solid var(--border); box-shadow: 0 14px 34px rgba(25,43,91,.1); }
.side-card h2 { font-size: 20px; }
.side-card a { display: block; padding: 7px 0; border-bottom: 1px dashed rgba(91,108,255,.16); }
.side-card a:last-child { border-bottom: 0; }
.callout { margin: 28px 0; padding: 22px; border-radius: 20px; background: #EFF8FF; border-left: 4px solid var(--cyan); }
.steps { counter-reset: steps; display: grid; gap: 14px; margin-top: 20px; }
.step { counter-increment: steps; position: relative; padding: 18px 18px 18px 62px; border-radius: 18px; background: #F7F8FF; }
.step::before { content: counter(steps); position: absolute; left: 18px; top: 17px; width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: linear-gradient(135deg,var(--primary),var(--cyan)); font-weight: 800; }
.cta-band { padding: 32px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-radius: 26px; background: var(--deep); color: #EAF0FF; }
.cta-band h2 { color: #fff; font-size: 28px; margin-bottom: 8px; }
.cta-band p { margin: 0; color: #C8D0E6; }
.site-footer { background: #0B1024; color: #EEF2FF; padding: 64px 0 20px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3,1fr); gap: 36px; }
.footer-grid h2 { color: #fff; font-size: 17px; }
.footer-grid a { display: block; color: #C9D2EA; padding: 4px 0; }
.footer-grid a:hover { color: #fff; }
.footer-brand p { max-width: 420px; color: #AEB8D3; }
.footer-logo { margin-bottom: 16px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 28px; margin-top: 36px; border-top: 1px solid rgba(255,255,255,.1); color: #9EA9C6; font-size: 13px; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1080px) {
  .nav-core { display: none; }
  .header-inner { grid-template-columns: auto 1fr auto; }
  .site-logo { justify-self: start; }
  .mobile-menu-toggle { display: grid; }
  .site-logo { justify-self: center; }
  .desktop-menu-toggle { display: none; }
  .hero-grid, .page-hero-grid { grid-template-columns: 1fr; }
  .hero-copy { max-width: none; }
  .hero-visual { max-width: 720px; margin-inline: auto; }
  .highlight-grid { grid-template-columns: repeat(2,1fr); }
  .card-grid { grid-template-columns: repeat(2,1fr); }
  .reviews { grid-template-columns: repeat(2,1fr); }
  .longform { grid-template-columns: 1fr; }
  .side-stack { position: static; grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 760px) {
  body { padding-bottom: 70px; }
  .container { width: min(calc(100% - 26px), var(--container)); }
  .header-inner { width: calc(100% - 20px); min-height: 64px; gap: 8px; }
  .site-logo img { width: 34px; }
  .site-logo strong { font-size: 19px; }
  .header-actions { gap: 6px; }
  .main-btn.compact { min-height: 36px; padding: 7px 12px; font-size: 13px; }
  .menu-toggle { width: 38px; height: 38px; }
  .hero { padding: 54px 0 44px; }
  .hero-grid { gap: 30px; }
  h1 { font-size: 52px; }
  .hero-subtitle { font-size: 27px; }
  .hero-copy { font-size: 15px; }
  .floating-note { position: static; margin-top: 14px; max-width: none; }
  .highlight-strip { margin-top: -10px; }
  .highlight-grid, .card-grid, .card-grid.two, .safety-grid, .reviews, .split, .side-stack, .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 58px 0; }
  .section-head { display: block; }
  .split.reverse .media { order: initial; }
  .service-points { grid-template-columns: 1fr; }
  .page-hero { padding: 46px 0 36px; }
  .article-card { padding: 24px 20px; }
  .article-card h2 { font-size: 27px; }
  .cta-band, .footer-bottom { flex-direction: column; align-items: flex-start; }
  .drawer-nav { grid-template-columns: 1fr; }
  .mobile-bottom-nav { position: fixed; left: 0; right: 0; bottom: 0; z-index: 9000; display: grid; grid-template-columns: repeat(4,1fr); min-height: 62px; background: rgba(11,16,36,.96); backdrop-filter: blur(12px); box-shadow: 0 -10px 28px rgba(13,22,52,.18); }
  .mobile-bottom-nav a { display: grid; place-items: center; align-content: center; color: #EEF2FF; font-size: 12px; line-height: 1.2; gap: 3px; }
  .mobile-bottom-nav span { font-size: 18px; color: var(--cyan); }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }