:root {
  --bg: #F5F7FF; --nav: rgba(12,18,40,.94); --title: #131A35; --brand: #5B6CFF;
  --deep: #16213E; --cyan: #00D4FF; --gold: #FFC857; --rose: #D94F70;
  --pale-blue: #EAF7FF; --pale-gold: #FFF4D6; --violet: #7A5CFF; --text: #1F2740;
  --muted: #66708A; --soft: #9AA4BA; --card: #FFFFFF; --dark-card: #11182F;
  --line: rgba(91,108,255,.18); --shadow: 0 20px 46px rgba(25,43,91,.14);
  --gradient: linear-gradient(135deg,#5B6CFF 0%,#7A5CFF 48%,#00D4FF 100%);
}
* { 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: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.75; }
body.drawer-open { overflow: hidden; }
a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--violet); }
img { max-width: 100%; height: auto; display: block; }
button, a { -webkit-tap-highlight-color: transparent; }
.skip-link { position: fixed; left: 12px; top: -80px; z-index: 12000; background: #fff; color: var(--deep); padding: 10px 14px; 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 { max-width: 1280px; min-height: 72px; margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: 220px 1fr 220px; align-items: center; gap: 22px; }
.site-logo { display: inline-flex; align-items: center; gap: 10px; color: #fff; font-size: 20px; letter-spacing: .04em; white-space: nowrap; }
.site-logo img { width: auto; max-width: 132px; max-height: 44px; object-fit: contain; }
.site-logo strong { color: #fff; }
.nav-core { display: flex; justify-content: center; align-items: center; gap: 8px; 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; justify-content: flex-end; gap: 12px; }
.main-btn { display: inline-flex; justify-content: center; align-items: center; min-height: 48px; padding: 0 25px; border-radius: 999px; color: #fff; background: var(--gradient); box-shadow: 0 14px 32px rgba(91,108,255,.22); font-weight: 700; border: 0; transition: transform .2s ease, box-shadow .2s ease; }
.main-btn:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 18px 38px rgba(91,108,255,.3); }
.compact-btn { min-height: 42px; padding: 0 20px; }
.ghost-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 23px; border-radius: 999px; border: 1px solid rgba(91,108,255,.25); background: rgba(255,255,255,.76); color: var(--deep); font-weight: 700; }
.menu-toggle { width: 44px; height: 44px; 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: 5px; cursor: pointer; }
.menu-toggle span { width: 19px; height: 2px; border-radius: 2px; background: #fff; }
.mobile-menu { display: none; }
.drawer-overlay { position: fixed; inset: 0; z-index: 10000; background: rgba(6,10,26,.58); backdrop-filter: blur(3px); }
.site-drawer { position: fixed; top: 0; right: 0; z-index: 10001; width: min(410px, 92vw); height: 100dvh; padding: 24px; overflow-y: auto; background: #fff; box-shadow: -22px 0 60px rgba(11,16,36,.28); transform: translateX(105%); transition: transform .28s ease; }
.site-drawer.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: var(--title); font-weight: 800; font-size: 21px; }
.drawer-brand img { max-width: 120px; max-height: 42px; object-fit: contain; }
.drawer-close { border: 0; background: var(--pale-blue); color: var(--title); border-radius: 50%; width: 42px; height: 42px; font-size: 27px; cursor: pointer; }
.drawer-copy { color: var(--muted); margin: 20px 0; }
.drawer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.drawer-nav a { padding: 11px 13px; border-radius: 13px; background: #F5F7FF; color: var(--deep); border: 1px solid var(--line); }
.drawer-nav a:hover { background: var(--pale-blue); color: var(--brand); }
.drawer-note { margin-top: 22px; padding: 15px; border-radius: 15px; background: var(--pale-gold); color: #5C4B15; font-size: 14px; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.section { padding: 88px 0; }
.section-sm { padding: 54px 0; }
.section-title { max-width: 760px; margin: 0 auto 34px; text-align: center; }
.section-title.align-left { max-width: none; margin-left: 0; text-align: left; }
.section-kicker { display: inline-block; margin-bottom: 8px; color: var(--brand); font-size: 14px; font-weight: 800; letter-spacing: .12em; }
h1, h2, h3 { 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, 46px); letter-spacing: -.025em; }
h3 { font-size: 22px; }
p { margin: 0 0 1em; }
.lead { font-size: clamp(18px, 2vw, 21px); color: var(--muted); }
.muted { color: var(--muted); }
.hero { position: relative; overflow: hidden; padding: 86px 0 72px; background: radial-gradient(circle at 12% 12%, rgba(122,92,255,.18), transparent 33%), radial-gradient(circle at 88% 18%, rgba(0,212,255,.22), transparent 30%), linear-gradient(135deg,#F9F7FF 0%,#EEF8FF 52%,#FFF3FA 100%); }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; filter: blur(2px); pointer-events: none; }
.hero::before { width: 230px; height: 230px; left: -90px; bottom: -100px; background: rgba(255,200,87,.18); }
.hero::after { width: 190px; height: 190px; right: 6%; top: 8%; background: rgba(217,79,112,.1); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.02fr .98fr; gap: 58px; align-items: center; }
.hero-copy .eyebrow { display: inline-flex; gap: 8px; align-items: center; padding: 7px 13px; border-radius: 999px; background: rgba(255,255,255,.72); border: 1px solid var(--line); color: var(--brand); font-weight: 700; font-size: 14px; }
.hero-copy h1 { margin: 18px 0 8px; }
.hero-subtitle { color: var(--violet); font-size: clamp(24px,3.4vw,39px); font-weight: 800; margin-bottom: 18px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin: 28px 0 30px; }
.hero-points { display: flex; gap: 10px; flex-wrap: wrap; padding: 0; margin: 0; list-style: none; }
.hero-points li { padding: 8px 13px; border-radius: 999px; background: rgba(255,255,255,.78); border: 1px solid var(--line); color: var(--deep); font-size: 14px; }
.hero-visual { position: relative; }
.hero-visual::before { content: ""; position: absolute; inset: 8% 4% -3% 14%; border-radius: 38px; background: var(--gradient); opacity: .18; filter: blur(30px); }
.hero-visual img { position: relative; width: 100%; max-height: 560px; object-fit: contain; filter: drop-shadow(0 28px 45px rgba(34,48,98,.2)); }
.floating-card { position: absolute; padding: 13px 16px; border-radius: 16px; background: rgba(255,255,255,.92); border: 1px solid rgba(255,255,255,.8); box-shadow: var(--shadow); color: var(--deep); font-size: 14px; font-weight: 700; }
.float-a { left: -18px; bottom: 15%; }.float-b { right: -5px; top: 12%; }
.highlight-strip { margin-top: -10px; position: relative; z-index: 2; }
.highlight-grid, .four-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.card, .zone-card, .info-card, .review-card { background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: 22px; }
.highlight-card { padding: 23px; }
.highlight-card strong { display: block; color: var(--title); font-size: 18px; margin-bottom: 7px; }
.highlight-card p { margin: 0; color: var(--muted); font-size: 14px; }
.channel-pills { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.channel-pill { width: min(220px, 100%); padding: 14px 17px; border-radius: 18px; background: #fff; border: 1px solid var(--line); box-shadow: 0 12px 28px rgba(25,43,91,.08); }
.channel-pill b { display: block; color: var(--title); margin-bottom: 3px; }
.channel-pill span { display: block; color: var(--muted); font-size: 13px; line-height: 1.55; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: center; }
.split.reverse .media { order: 2; }
.media-card { position: relative; padding: 22px; border-radius: 30px; background: linear-gradient(145deg,#EAF7FF,#F4EEFF); border: 1px solid var(--line); overflow: hidden; }
.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: 480px; }
.copy-card { padding: 36px; }
.copy-card ul, .feature-list { padding: 0; margin: 22px 0; list-style: none; display: grid; gap: 11px; }
.copy-card li, .feature-list li { position: relative; padding-left: 25px; color: var(--muted); }
.copy-card li::before, .feature-list li::before { content: ""; position: absolute; left: 0; top: .72em; width: 10px; height: 10px; border-radius: 50%; background: var(--gradient); }
.text-link { display: inline-flex; align-items: center; gap: 7px; color: var(--brand); font-weight: 800; }
.text-link::after { content: "→"; }
.soft-blue { background: linear-gradient(180deg,#F5F7FF 0%,#EAF7FF 100%); }
.soft-violet { background: linear-gradient(180deg,#F5F7FF 0%,#F2EDFF 100%); }
.two-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 24px; }
.three-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.zone-card { overflow: hidden; }
.zone-card img { width: 100%; aspect-ratio: 16/10; padding: 18px 18px 0; }
.zone-body { padding: 24px 27px 28px; }
.zone-body p { color: var(--muted); }
.mini-points { display: grid; gap: 9px; margin: 18px 0; }
.mini-point { padding: 11px 13px; border-radius: 13px; background: var(--bg); color: var(--deep); font-size: 14px; }
.security-panel { display: grid; grid-template-columns: 1.08fr .92fr; gap: 28px; align-items: stretch; }
.security-copy { padding: 42px; border-radius: 28px; background: var(--dark-card); color: #DCE5FF; box-shadow: var(--shadow); }
.security-copy h2, .security-copy h3 { color: #fff; }
.security-copy .section-kicker { color: var(--cyan); }
.security-images { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.security-images .media-card { padding: 12px; display: flex; align-items: center; }
.review-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 19px; }
.review-card { padding: 25px; }
.review-card .stars { color: var(--gold); letter-spacing: .14em; }
.review-card p { color: var(--muted); margin: 12px 0; }
.review-card strong { color: var(--title); }
.faq-list { display: grid; gap: 13px; max-width: 920px; margin: 0 auto; }
details { background: #fff; border: 1px solid var(--line); border-radius: 17px; box-shadow: 0 12px 30px rgba(25,43,91,.08); }
summary { cursor: pointer; padding: 19px 54px 19px 21px; color: var(--title); font-weight: 800; position: relative; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); font-size: 24px; color: var(--brand); }
details[open] summary::after { content: "−"; }
details p { padding: 0 21px 20px; color: var(--muted); }
.notice-panel { padding: 38px; border-radius: 26px; background: linear-gradient(135deg,#FFF4D6,#FFF9EB 60%,#EAF7FF); border: 1px solid rgba(255,200,87,.36); display: grid; grid-template-columns: 1fr auto; gap: 26px; align-items: center; }
.notice-panel h2 { margin-bottom: 10px; font-size: 30px; }
.sub-hero { padding: 74px 0 58px; background: radial-gradient(circle at 78% 18%,rgba(0,212,255,.18),transparent 30%), linear-gradient(135deg,#F8F6FF,#EEF8FF); }
.sub-hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 46px; align-items: center; }
.sub-hero h1 { font-size: clamp(38px,5.5vw,64px); margin: 12px 0 18px; }
.sub-hero img { width: 100%; max-height: 430px; object-fit: contain; filter: drop-shadow(0 25px 38px rgba(25,43,91,.17)); }
.breadcrumb { color: var(--muted); font-size: 14px; }
.breadcrumb a { color: var(--brand); }
.service-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.info-card { padding: 26px; }
.info-card .number { display: inline-flex; width: 38px; height: 38px; border-radius: 12px; align-items: center; justify-content: center; background: var(--pale-blue); color: var(--brand); font-weight: 900; margin-bottom: 15px; }
.info-card p { color: var(--muted); }
.article-layout { display: grid; grid-template-columns: minmax(0,1fr) 310px; gap: 34px; align-items: start; }
.article-card { padding: 38px; }
.article-card h2 { font-size: 31px; margin-top: 34px; }
.article-card h2:first-child { margin-top: 0; }
.article-card p { color: #3F4962; }
.side-card { position: sticky; top: 96px; padding: 25px; }
.side-card h2 { font-size: 23px; }
.side-card a { display: block; padding: 10px 0; border-bottom: 1px solid var(--line); color: var(--deep); }
.side-card a:last-child { border-bottom: 0; }
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(4,1fr); gap: 17px; }
.step { position: relative; padding: 24px; border-radius: 20px; background: #fff; border: 1px solid var(--line); box-shadow: 0 14px 34px rgba(25,43,91,.09); }
.step::before { counter-increment: step; content: counter(step, decimal-leading-zero); display: block; color: var(--violet); font-size: 28px; font-weight: 900; margin-bottom: 12px; }
.feedback-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.feedback-card { padding: 24px; border-radius: 20px; background: #fff; border: 1px solid var(--line); }
.feedback-card p { color: var(--muted); }
.tag-row { display: flex; gap: 9px; flex-wrap: wrap; margin-top: 18px; }
.tag { padding: 6px 11px; border-radius: 999px; background: var(--pale-gold); color: #7A5A00; font-size: 13px; }
.site-footer { background: #0B1024; color: #EEF2FF; padding: 64px 0 24px; }
.footer-inner { width: min(1180px,calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: 1.1fr 2fr; gap: 60px; }
.footer-logo { margin-bottom: 18px; }
.footer-brand p { color: #AEB8D1; max-width: 420px; }
.footer-links { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.footer-links h2 { color: #fff; font-size: 16px; margin-bottom: 14px; }
.footer-links a { display: block; color: #B9C3DC; margin: 8px 0; font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-bottom { width: min(1180px,calc(100% - 40px)); margin: 38px auto 0; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1); color: #9DA9C4; font-size: 13px; display: flex; justify-content: space-between; gap: 30px; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1040px) {
  .header-inner { grid-template-columns: 170px 1fr 160px; padding: 0 18px; }
  .nav-core a { padding: 8px 8px; font-size: 14px; }
  .site-logo strong { display: none; }
  .hero-grid, .sub-hero-grid { gap: 30px; }
  .highlight-grid, .four-grid { grid-template-columns: repeat(2,1fr); }
  .service-grid, .review-grid { grid-template-columns: repeat(2,1fr); }
  .steps { grid-template-columns: repeat(2,1fr); }
  .footer-inner { grid-template-columns: 1fr; gap: 36px; }
}
@media (max-width: 820px) {
  .header-inner { min-height: 66px; grid-template-columns: 56px 1fr 116px; gap: 8px; }
  .mobile-menu { display: inline-flex; justify-self: start; }
  .desktop-menu, .nav-core { display: none; }
  .site-logo { justify-self: center; }
  .site-logo img { max-width: 112px; max-height: 38px; }
  .header-actions { justify-self: end; }
  .compact-btn { min-height: 38px; padding: 0 15px; font-size: 14px; }
  .hero { padding-top: 58px; }
  .hero-grid, .sub-hero-grid, .split, .security-panel, .article-layout { grid-template-columns: 1fr; }
  .hero-copy { text-align: center; }
  .hero-actions, .hero-points { justify-content: center; }
  .hero-visual { max-width: 620px; margin: 0 auto; }
  .split.reverse .media { order: 0; }
  .two-grid, .three-grid { grid-template-columns: 1fr; }
  .security-images { max-width: 620px; }
  .article-card { padding: 28px; }
  .side-card { position: static; }
  .footer-links { grid-template-columns: repeat(2,1fr); }
  .footer-bottom { flex-direction: column; gap: 5px; padding-bottom: 66px; }
  .mobile-bottom-nav { position: fixed; left: 0; right: 0; bottom: 0; z-index: 9000; height: calc(62px + 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); backdrop-filter: blur(15px); border-top: 1px solid var(--line); box-shadow: 0 -10px 30px rgba(25,43,91,.12); }
  .mobile-bottom-nav a { color: var(--muted); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1px; font-size: 12px; }
  .mobile-bottom-nav span { color: var(--brand); font-size: 20px; line-height: 1; }
  body { padding-bottom: calc(62px + env(safe-area-inset-bottom)); }
}
@media (max-width: 580px) {
  .container { width: min(100% - 28px,1180px); }
  .section { padding: 64px 0; }
  .section-sm { padding: 42px 0; }
  .hero { padding: 48px 0 55px; }
  h1 { font-size: 44px; }
  .hero-subtitle { font-size: 25px; }
  .floating-card { position: static; display: inline-block; margin: 8px 5px 0; }
  .highlight-grid, .four-grid, .service-grid, .review-grid, .feedback-grid, .steps { grid-template-columns: 1fr; }
  .channel-pill { width: 100%; }
  .copy-card, .security-copy, .article-card, .notice-panel { padding: 25px; }
  .notice-panel { grid-template-columns: 1fr; }
  .security-images { grid-template-columns: 1fr; }
  .drawer-nav { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: 1fr 1fr; gap: 18px; }
  .site-logo img { max-width: 90px; }
  .compact-btn { padding: 0 12px; }
}