:root {
  --bg: #F5F7FF;
  --ink: #1F2740;
  --title: #131A35;
  --muted: #66708A;
  --soft: #9AA4BA;
  --brand: #5B6CFF;
  --violet: #7A5CFF;
  --cyan: #00D4FF;
  --gold: #FFC857;
  --red: #D94F70;
  --deep: #16213E;
  --night: #0B1024;
  --card: #FFFFFF;
  --border: rgba(91,108,255,.18);
  --shadow: 0 20px 46px rgba(25,43,91,.14);
  --radius: 24px;
  --max: 1240px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--bg); color: var(--ink); font-family: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, sans-serif; line-height: 1.75; overflow-x: hidden; }
body.drawer-open { overflow: hidden; }
a { color: inherit; }
img { max-width: 100%; height: auto; }
button, input, textarea, select { font: inherit; }
.site-header { position: sticky; top: 0; width: 100%; z-index: 9999; background: rgba(12,18,40,.94); backdrop-filter: blur(12px); box-shadow: 0 8px 26px rgba(25,43,91,.16); }
.header-inner { max-width: 1280px; margin: 0 auto; min-height: 72px; padding: 0 22px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.site-logo { display: inline-flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; min-width: 180px; }
.site-logo img { width: auto; max-height: 44px; display: block; }
.site-logo strong { font-size: 20px; letter-spacing: .08em; white-space: nowrap; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: 8px; flex: 1; }
.nav-core a { color: #EEF2FF; text-decoration: none; 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; min-width: 180px; justify-content: flex-end; }
.main-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 24px; border-radius: 999px; color: #fff; text-decoration: none; font-weight: 700; background: linear-gradient(135deg,#5B6CFF 0%,#7A5CFF 48%,#00D4FF 100%); box-shadow: 0 14px 32px rgba(91,108,255,.22); transition: transform .2s ease, box-shadow .2s ease; }
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 18px 38px rgba(91,108,255,.3); }
.main-btn.small { min-height: 42px; padding: 0 18px; font-size: 14px; }
.secondary-btn { display: inline-flex; align-items: center; min-height: 48px; padding: 0 22px; border-radius: 999px; text-decoration: none; font-weight: 700; color: var(--brand); border: 1px solid rgba(91,108,255,.3); background: rgba(255,255,255,.82); }
.menu-toggle { width: 42px; height: 42px; border: 1px solid rgba(255,255,255,.18); border-radius: 14px; background: rgba(255,255,255,.08); display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; cursor: pointer; }
.menu-toggle span { width: 18px; height: 2px; background: #fff; border-radius: 2px; }
.menu-mobile { display: none; }
.drawer-overlay { position: fixed; inset: 0; z-index: 10000; background: rgba(4,8,22,.56); opacity: 0; pointer-events: none; transition: opacity .25s ease; }
.site-drawer { position: fixed; top: 0; right: 0; z-index: 10001; width: min(390px,88vw); height: 100dvh; background: #fff; box-shadow: -24px 0 60px rgba(9,15,41,.25); transform: translateX(105%); transition: transform .3s ease; padding: 22px; overflow-y: auto; }
.drawer-open .drawer-overlay { opacity: 1; pointer-events: auto; }
.drawer-open .site-drawer { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 18px; border-bottom: 1px solid var(--border); }
.drawer-brand { display: flex; align-items: center; gap: 10px; color: var(--title); font-weight: 800; }
.drawer-brand img { max-height: 42px; width: auto; }
.drawer-close { border: 0; background: #EEF1FF; width: 40px; height: 40px; border-radius: 50%; color: var(--title); font-size: 28px; cursor: pointer; }
.drawer-nav { display: grid; grid-template-columns: repeat(2,1fr); gap: 10px; padding: 22px 0; }
.drawer-nav a { text-decoration: none; color: var(--title); background: #F7F8FF; border: 1px solid var(--border); border-radius: 14px; padding: 12px 14px; }
.drawer-nav a:hover { color: var(--brand); border-color: rgba(91,108,255,.45); }
.drawer-note { padding: 18px; border-radius: 18px; background: linear-gradient(135deg,#EFF8FF,#FFF4D6); }
.drawer-note strong { color: var(--title); }
.drawer-note p { margin: 8px 0 0; font-size: 14px; color: var(--muted); }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.hero { position: relative; overflow: hidden; padding: 88px 0 64px; background: radial-gradient(circle at 84% 15%,rgba(0,212,255,.24),transparent 27%), radial-gradient(circle at 18% 20%,rgba(122,92,255,.22),transparent 30%), linear-gradient(135deg,#F2F0FF 0%,#EAF7FF 48%,#FFF0F7 100%); }
.hero:before, .hero:after { content: ""; position: absolute; border-radius: 50%; filter: blur(1px); pointer-events: none; }
.hero:before { width: 280px; height: 280px; left: -100px; bottom: -120px; background: rgba(255,200,87,.2); }
.hero:after { width: 180px; height: 180px; right: 8%; top: 12%; border: 1px solid rgba(91,108,255,.18); }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 64px; }
.hero-copy { position: relative; z-index: 2; }
.eyebrow, .section-kicker { display: inline-flex; align-items: center; gap: 8px; color: var(--brand); font-weight: 800; letter-spacing: .08em; font-size: 14px; text-transform: uppercase; }
.eyebrow:before, .section-kicker:before { content: ""; width: 28px; height: 3px; border-radius: 3px; background: linear-gradient(90deg,var(--brand),var(--cyan)); }
h1, h2, h3, .section-title { color: var(--title); line-height: 1.25; }
.hero h1 { margin: 18px 0 10px; font-size: clamp(48px,7vw,82px); letter-spacing: -.04em; }
.hero-subtitle { margin: 0 0 18px; font-size: clamp(22px,3vw,34px); color: var(--deep); font-weight: 800; }
.hero-text { max-width: 700px; color: var(--muted); font-size: 17px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }
.hero-tags { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 28px; padding: 0; list-style: none; }
.hero-tags li { background: rgba(255,255,255,.75); border: 1px solid rgba(91,108,255,.16); color: var(--deep); padding: 9px 14px; border-radius: 999px; font-size: 14px; }
.hero-visual { position: relative; }
.hero-visual img { display: block; width: 100%; max-height: 620px; object-fit: contain; filter: drop-shadow(0 30px 40px rgba(25,43,91,.2)); }
.floating-note { position: absolute; left: -22px; bottom: 12%; width: 210px; padding: 16px 18px; border-radius: 18px; background: rgba(255,255,255,.9); box-shadow: var(--shadow); }
.floating-note strong { color: var(--title); display: block; }
.floating-note span { color: var(--muted); font-size: 13px; }
.highlight-strip { margin-top: -24px; position: relative; z-index: 4; }
.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 b { color: var(--title); display: block; margin-bottom: 6px; }
.highlight-item p { margin: 0; color: var(--muted); font-size: 14px; }
.section { padding: 82px 0; }
.section.compact { padding: 58px 0; }
.section.alt { background: #fff; }
.section.deep { background: linear-gradient(135deg,#121A36,#182349); color: #EAF0FF; }
.section.deep h2, .section.deep h3 { color: #fff; }
.section-head { max-width: 760px; margin-bottom: 34px; }
.section-head.center { text-align: center; margin-left: auto; margin-right: auto; }
.section-title { margin: 12px 0 14px; font-size: clamp(32px,4.5vw,50px); }
.section-lead { color: var(--muted); margin: 0; font-size: 17px; }
.section.deep .section-lead { color: #C3CBE2; }
.pill-nav { display: grid; grid-template-columns: repeat(5,1fr); gap: 12px; }
.pill-link { text-decoration: none; border: 1px solid var(--border); border-radius: 18px; padding: 18px; background: #fff; box-shadow: 0 12px 32px rgba(25,43,91,.08); }
.pill-link strong { color: var(--title); display: block; margin-bottom: 6px; }
.pill-link span { color: var(--muted); font-size: 13px; display: block; }
.pill-link em { display: inline-block; margin-top: 10px; color: var(--brand); font-style: normal; font-size: 13px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: center; }
.split.reverse .media { order: 2; }
.media img, .content-img, .zone-card img, .app-section img, .hero-visual img { max-width: 100%; height: auto; object-fit: contain; }
.media img { display: block; width: 100%; max-height: 560px; border-radius: var(--radius); box-shadow: var(--shadow); background: linear-gradient(135deg,#EEF2FF,#EFF8FF); }
.copy h2 { font-size: clamp(32px,4vw,48px); margin: 12px 0 16px; }
.copy p { color: var(--muted); }
.text-link { color: var(--brand); text-decoration: none; font-weight: 800; }
.text-link:hover { text-decoration: underline; }
.card-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.card-grid.two { grid-template-columns: repeat(2,1fr); }
.card, .zone-card, .info-card, .review-card { background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: 22px; }
.zone-card { padding: 24px; overflow: hidden; }
.zone-card img { width: 100%; max-height: 280px; margin-bottom: 18px; border-radius: 18px; background: #F1F4FF; }
.zone-card h3 { font-size: 24px; margin: 0 0 10px; }
.zone-card p { color: var(--muted); }
.clean-list { padding: 0; margin: 18px 0; list-style: none; display: grid; gap: 10px; }
.clean-list li { position: relative; padding-left: 22px; color: var(--muted); }
.clean-list li:before { content: ""; position: absolute; left: 0; top: .72em; width: 9px; height: 9px; border-radius: 50%; background: linear-gradient(135deg,var(--brand),var(--cyan)); }
.banner-row { display: grid; grid-template-columns: repeat(2,1fr); gap: 22px; margin-top: 24px; }
.banner-row img { display: block; width: 100%; max-height: 320px; object-fit: contain; border-radius: 22px; background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); }
.safety-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.safety-card { padding: 28px; border-radius: 24px; background: linear-gradient(135deg,#FFFFFF,#EFF8FF); border: 1px solid var(--border); box-shadow: var(--shadow); }
.safety-card.gold { background: linear-gradient(135deg,#FFFFFF,#FFF4D6); }
.safety-card img { width: 100%; max-height: 300px; object-fit: contain; border-radius: 18px; }
.reviews { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.review-card { padding: 24px; }
.review-card p { margin: 0; color: var(--muted); }
.review-card footer { margin-top: 14px; color: var(--brand); font-weight: 800; font-size: 14px; }
.faq-list { display: grid; gap: 14px; }
details { background: #fff; border: 1px solid var(--border); border-radius: 18px; padding: 18px 20px; box-shadow: 0 10px 26px rgba(25,43,91,.07); }
summary { color: var(--title); font-weight: 800; cursor: pointer; }
details p { color: var(--muted); margin: 12px 0 0; }
.notice { padding: 28px; border-radius: 24px; background: linear-gradient(135deg,#FFF4D6,#EFF8FF); border: 1px solid rgba(255,200,87,.45); }
.notice h2, .notice h3 { margin-top: 0; }
.notice p:last-child { margin-bottom: 0; }
.sub-hero { padding: 74px 0 52px; background: radial-gradient(circle at 80% 20%,rgba(0,212,255,.18),transparent 28%), linear-gradient(135deg,#F4F1FF,#EAF7FF 56%,#FFF3F8); }
.sub-hero-grid { display: grid; grid-template-columns: 1.06fr .94fr; align-items: center; gap: 48px; }
.sub-hero h1 { margin: 16px 0; font-size: clamp(42px,6vw,68px); }
.sub-hero p { color: var(--muted); font-size: 17px; }
.sub-hero img { width: 100%; max-height: 500px; object-fit: contain; filter: drop-shadow(0 26px 34px rgba(25,43,91,.18)); }
.article-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 30px; align-items: start; }
.article-body { background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: 24px; padding: 34px; }
.article-body h2 { margin-top: 32px; font-size: 30px; }
.article-body h2:first-child { margin-top: 0; }
.article-body p { color: var(--muted); }
.article-side { display: grid; gap: 18px; position: sticky; top: 96px; }
.info-card { padding: 24px; }
.info-card h3 { margin-top: 0; }
.info-card p, .info-card li { color: var(--muted); }
.info-card ul { padding-left: 20px; }
.info-card img { width: 100%; max-height: 320px; object-fit: contain; border-radius: 16px; background: #F2F5FF; }
.service-points { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.service-point { padding: 22px; border-radius: 20px; background: #fff; border: 1px solid var(--border); box-shadow: 0 14px 34px rgba(25,43,91,.09); }
.service-point b { color: var(--title); display: block; margin-bottom: 8px; }
.service-point p { margin: 0; color: var(--muted); font-size: 14px; }
.feedback-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.feedback { padding: 22px; border-radius: 18px; background: #fff; border: 1px solid var(--border); color: var(--muted); }
.feedback strong { display: block; margin-top: 12px; color: var(--brand); }
.site-footer { background: var(--night); color: #EEF2FF; padding: 58px 0 0; }
.footer-inner { width: min(var(--max),calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: .9fr 1.6fr; gap: 56px; }
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-brand img { max-height: 54px; width: auto; }
.footer-brand strong { font-size: 24px; }
.footer-brand p { margin: 4px 0 0; color: #AAB5D3; }
.footer-links { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.footer-links h3 { color: #fff; font-size: 16px; margin-top: 0; }
.footer-links a { display: block; color: #BFC8E2; text-decoration: none; margin: 8px 0; font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-bottom { margin-top: 42px; border-top: 1px solid rgba(255,255,255,.1); padding: 20px; text-align: center; color: #9EA9C8; font-size: 13px; }
.footer-bottom p { margin: 0; }
.mobile-quick { display: none; }
@media (max-width: 1080px) {
  .nav-core a:nth-child(3), .nav-core a:nth-child(4) { display: none; }
  .pill-nav { grid-template-columns: repeat(3,1fr); }
  .card-grid { grid-template-columns: repeat(2,1fr); }
  .reviews { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 820px) {
  body { padding-bottom: 76px; }
  .header-inner { min-height: 64px; padding: 0 14px; position: relative; }
  .menu-mobile { display: inline-flex; }
  .menu-desktop, .nav-core { display: none; }
  .site-logo { position: absolute; left: 50%; transform: translateX(-50%); min-width: 0; }
  .site-logo strong { display: none; }
  .site-logo img { max-height: 38px; }
  .header-actions { min-width: 0; margin-left: auto; }
  .main-btn.small { min-height: 38px; padding: 0 13px; font-size: 13px; }
  .hero { padding: 58px 0 48px; }
  .hero-grid, .sub-hero-grid, .split, .article-grid { grid-template-columns: 1fr; gap: 30px; }
  .hero-copy { text-align: center; }
  .hero-text { margin-left: auto; margin-right: auto; }
  .hero-actions, .hero-tags { justify-content: center; }
  .hero-visual { max-width: 620px; margin: 0 auto; }
  .floating-note { left: 8px; bottom: 4%; }
  .highlight-grid { grid-template-columns: repeat(2,1fr); }
  .pill-nav { grid-template-columns: repeat(2,1fr); }
  .split.reverse .media { order: initial; }
  .card-grid, .card-grid.two, .banner-row, .safety-grid, .service-points, .feedback-grid { grid-template-columns: 1fr; }
  .article-side { position: static; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-links { grid-template-columns: repeat(2,1fr); }
  .mobile-quick { position: fixed; left: 10px; right: 10px; bottom: 10px; z-index: 9000; display: grid; grid-template-columns: repeat(4,1fr); background: rgba(11,16,36,.95); backdrop-filter: blur(12px); border: 1px solid rgba(255,255,255,.12); border-radius: 20px; box-shadow: 0 14px 34px rgba(5,10,27,.28); padding: 8px; }
  .mobile-quick a { color: #EAF0FF; text-decoration: none; display: flex; flex-direction: column; align-items: center; gap: 2px; font-size: 12px; }
  .mobile-quick span { color: var(--cyan); font-size: 18px; line-height: 1; }
}
@media (max-width: 560px) {
  .container { width: min(100% - 26px,var(--max)); }
  .hero h1 { font-size: 48px; }
  .hero-subtitle { font-size: 23px; }
  .hero-text, .sub-hero p { font-size: 15px; }
  .highlight-grid, .pill-nav, .reviews { grid-template-columns: 1fr; }
  .section { padding: 62px 0; }
  .section-title { font-size: 34px; }
  .article-body { padding: 24px 20px; }
  .drawer-nav { grid-template-columns: 1fr; }
  .floating-note { position: static; width: auto; margin-top: 12px; }
}