@charset "UTF-8";

:root { --brand: #238ee8; --brand-dark: #126fca; --brand-soft: #eaf5ff; --ink: #10243f; --muted: #687a91; --line: #cfe2f5; --surface-soft: #f6f9fc; --deep: #0d1d32; --shadow: 0 18px 44px rgba(32, 87, 139, 0.14); }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body { min-width: 320px; margin: 0; padding-top: 76px; color: var(--ink); background: #fff; font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; font-size: 16px; line-height: 1.7; overflow-x: hidden; }
a { color: inherit; text-decoration: none; -webkit-tap-highlight-color: transparent; }
button, summary { font: inherit; -webkit-tap-highlight-color: transparent; }
button { border: 0; }
img { display: block; max-width: 100%; }
p, h1, h2, h3 { margin-top: 0; }
.site-header { position: fixed; top: 0; right: 0; left: 0; z-index: 100; min-height: 76px; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); box-shadow: 0 5px 18px rgba(24,67,107,.06); }
.header-inner { display: flex; align-items: center; gap: 34px; width: min(1180px, calc(100% - 40px)); min-height: 76px; margin: 0 auto; }
.brand, .footer-brand { display: inline-flex; flex: none; align-items: center; gap: 10px; }
.brand img, .footer-brand img { width: 44px; height: 44px; object-fit: cover; border-radius: 5px; }
.brand span, .footer-brand span { display: flex; flex-direction: column; line-height: 1.2; }
.brand b, .footer-brand b { font-size: 19px; font-weight: 800; }
.brand small, .footer-brand small { margin-top: 3px; color: var(--muted); font-size: 12px; }
.main-nav { margin-left: auto; }
.main-nav ul, .footer-nav ul { display: flex; flex-wrap: wrap; align-items: center; gap: 28px; padding: 0; margin: 0; list-style: none; }
.main-nav a { display: inline-block; padding: 8px 0; font-size: 15px; font-weight: 800; }
.main-nav a:hover, .main-nav a:focus-visible, .footer-nav a:hover { color: var(--brand); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.desktop-download, .mobile-download, .primary-button, .download-button { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 10px 18px; color: #fff; background: var(--brand); border-radius: 5px; font-size: 14px; font-weight: 800; white-space: nowrap; transition: background .2s ease, transform .2s ease; }
.primary-button, .download-button { min-height: 54px; padding: 14px 30px; font-size: 16px; }
.desktop-download:hover, .mobile-download:hover, .primary-button:hover, .download-button:hover { background: var(--brand-dark); transform: translateY(-2px); }
.mobile-download, .menu-toggle { display: none; }
.menu-toggle { width: 42px; height: 42px; padding: 9px; background: #fff; border: 1px solid var(--line); border-radius: 5px; cursor: pointer; }
.menu-toggle span { display: block; width: 100%; height: 2px; margin: 4px 0; background: var(--ink); }
.hero { overflow: hidden; background: radial-gradient(circle at 78% 37%, #d9f0ff 0, #f2f9ff 25%, #fff 58%); }
.hero-inner { display: flex; align-items: center; gap: clamp(48px,7vw,108px); width: min(1200px, calc(100% - 40px)); min-height: 690px; padding: 72px 0 84px; margin: 0 auto; }
.hero-copy { max-width: 620px; }
.eyebrow, .section-heading > span, .download-inner > div > span { display: inline-block; margin-bottom: 12px; color: var(--brand-dark); font-size: 12px; font-weight: 900; letter-spacing: .14em; }
.eyebrow { padding: 5px 10px; background: var(--brand-soft); border-radius: 5px; }
.hero h1 { margin-bottom: 12px; font-size: clamp(42px,6vw,72px); line-height: 1.04; letter-spacing: -.06em; }
.hero-slogan { margin-bottom: 13px; color: var(--brand-dark); font-size: clamp(20px,2.4vw,30px); font-weight: 800; }
.hero-description { max-width: 600px; margin-bottom: 26px; color: #526b86; }
.hero-actions { display: inline-flex; flex-direction: column; align-items: center; gap: 12px; }
.age-label { color: var(--muted); font-size: 12px; }
.hero-carousel { flex: none; width: clamp(280px,30vw,360px); height: clamp(498px,53.333vw,640px); padding: 4px; margin-left: auto; background: var(--deep); border: 4px solid var(--deep); border-radius: 5px; box-shadow: var(--shadow); }
.app-swiper, .app-swiper .swiper-wrapper, .app-swiper .swiper-slide, .app-swiper .swiper-slide img { width: 100%; height: 100%; }
.app-swiper { overflow: hidden; background: #dceafa; border-radius: 5px; }
.app-swiper .swiper-slide img { object-fit: contain; object-position: center; }
.app-swiper .swiper-pagination { bottom: 10px; }
.app-swiper .swiper-pagination-bullet { width: 22px; height: 5px; margin: 0 4px; background: #8fa8c2; border-radius: 5px; opacity: 1; }
.app-swiper .swiper-pagination-bullet-active { background: var(--brand); }
.section { padding: 96px 0; scroll-margin-top: 96px; }
.section-inner { width: min(1080px, calc(100% - 40px)); margin: 0 auto; }
.section-heading { max-width: 620px; margin-bottom: 32px; }
.section-heading h2 { margin-bottom: 10px; font-size: clamp(34px,4vw,52px); line-height: 1.1; letter-spacing: -.05em; }
.section-heading p { margin-bottom: 0; color: var(--muted); }
.section-heading-center { margin-right: auto; margin-left: auto; text-align: center; }
.features-section, .reviews-section { background: var(--surface-soft); }
.feature-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 18px; }
.feature-card { min-height: 240px; padding: 28px; background: #fff; border: 1px solid var(--line); border-radius: 5px; }
.feature-card-main { display: grid; grid-column: 1 / -1; grid-template-columns: 72px minmax(0,1fr) auto; align-items: center; gap: 24px; min-height: 190px; background: #f5fbff; }
.feature-card > img { width: 48px; height: 48px; padding: 10px; margin-bottom: 24px; background: var(--brand-soft); border-radius: 5px; }
.feature-card-main > img { width: 72px; height: 72px; padding: 15px; margin: 0; }
.feature-card span { display: block; margin-bottom: 8px; color: var(--brand-dark); font-size: 12px; font-weight: 900; letter-spacing: .12em; }
.feature-card h3 { margin-bottom: 9px; font-size: 22px; line-height: 1.25; }
.feature-card p { margin-bottom: 0; color: var(--muted); font-size: 14px; }
.feature-card strong { padding: 9px 12px; color: var(--brand-dark); background: #fff; border: 1px solid var(--line); border-radius: 5px; font-size: 13px; white-space: nowrap; }
.faq-list { width: min(100%,920px); margin: 0 auto; }
.faq-list details { margin-bottom: 12px; background: #fff; border: 1px solid var(--line); border-radius: 5px; }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; min-height: 72px; padding: 18px 22px; cursor: pointer; font-weight: 800; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary i { display: grid; flex: none; width: 30px; height: 30px; place-items: center; color: var(--brand-dark); background: var(--brand-soft); border-radius: 5px; font-size: 24px; font-style: normal; font-weight: 400; line-height: 1; }
.faq-list details[open] { border-color: #8fc7f5; box-shadow: inset 4px 0 0 var(--brand); }
.faq-list details[open] summary i { transform: rotate(45deg); }
.faq-list details p { padding: 0 22px 20px; margin: 0; color: var(--muted); font-size: 14px; }
.faq-list details a { color: var(--brand-dark); text-decoration: underline; }
.review-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap: 22px; }
.review-card { display: flex; flex-direction: column; padding: 24px; background: #fff; border: 1px solid var(--line); border-radius: 5px; box-shadow: 0 12px 30px rgba(32,87,139,.06); }
.review-card header { display: flex; align-items: center; gap: 11px; }
.review-card header img { width: 42px; height: 42px; padding: 8px; background: var(--brand-soft); border-radius: 5px; }
.review-card header div { display: flex; flex-direction: column; line-height: 1.25; }
.review-card header b { font-size: 15px; }
.review-card header span { margin-top: 4px; color: var(--brand); font-size: 12px; }
.review-card > p { margin: 18px 0 14px; color: #526b86; font-size: 14px; }
.review-card time { margin-top: auto; color: var(--muted); font-size: 12px; }
.download-section { padding: 0; background: var(--deep); border-top: 5px dotted var(--brand); border-bottom: 5px dotted var(--brand); }
.download-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; width: min(1080px,calc(100% - 40px)); padding: 72px 0; margin: 0 auto; color: #fff; }
.download-inner > div > span { color: #9dd4ff; }
.download-inner h2 { margin-bottom: 10px; font-size: clamp(30px,4vw,46px); line-height: 1.1; }
.download-inner p { max-width: 620px; margin-bottom: 0; color: #c3d5e8; }
.site-footer { background: #fff; }
.footer-inner { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 30px; width: min(1180px,calc(100% - 40px)); min-height: 150px; margin: 0 auto; }
.footer-nav ul { justify-content: center; gap: 18px; }
.footer-nav a, .footer-inner > p { color: var(--muted); font-size: 12px; }
.footer-inner > p { justify-self: end; margin: 0; }
.back-to-top { position: fixed; right: 24px; bottom: 24px; z-index: 30; display: grid; width: 44px; height: 44px; padding: 0; place-items: center; color: #fff; background: var(--brand); border-radius: 5px; box-shadow: var(--shadow); cursor: pointer; opacity: 0; pointer-events: none; transition: opacity .2s ease; }
.back-to-top.is-visible { opacity: 1; pointer-events: auto; }
@media (max-width: 980px) { .header-inner { gap: 18px; } .main-nav { position: fixed; top: 76px; right: 0; left: 0; display: none; padding: 12px 20px 18px; margin: 0; background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 12px 24px rgba(32,87,139,.1); } .main-nav.is-open { display: block; } .main-nav ul { flex-direction: column; align-items: stretch; gap: 0; } .main-nav li + li { border-top: 1px solid var(--line); } .main-nav a { display: block; padding: 13px 0; } .desktop-download { display: none; } .mobile-download, .menu-toggle { display: inline-flex; } .menu-toggle { display: block; } .footer-inner { grid-template-columns: 1fr; justify-items: center; padding: 34px 0; text-align: center; } .footer-inner > p { justify-self: center; } }
@media (max-width: 700px) { body { padding-top: 70px; } html { scroll-padding-top: 84px; } .site-header, .header-inner { min-height: 70px; } .header-inner { width: min(calc(100% - 28px),680px); gap: 8px; } .header-actions { flex: none; margin-left: auto; gap: 7px; } .brand { min-width: 0; gap: 7px; } .brand img { width: 37px; height: 37px; } .brand b { font-size: 16px; } .brand small { font-size: 12px; } .mobile-download { min-height: 38px; padding: 8px 10px; font-size: 13px; } .menu-toggle { width: 38px; height: 38px; padding: 8px; } .main-nav { top: 70px; } .hero-inner { flex-direction: column; gap: 42px; width: min(calc(100% - 28px),1100px); min-height: 0; padding: 54px 0 72px; text-align: center; } .hero-copy { max-width: 100%; } .hero h1 { font-size: clamp(42px,13vw,58px); } .hero-description { margin-right: auto; margin-left: auto; } .hero-carousel { align-self: center; width: min(100%,330px); height: min(calc((100vw - 28px) * 1.7778),586px); margin-left: 0; } .section { padding: 72px 0; scroll-margin-top: 84px; } .section-inner { width: min(calc(100% - 28px),1080px); } .feature-grid { grid-template-columns: 1fr; } .feature-card-main { grid-template-columns: 58px minmax(0,1fr); gap: 18px; } .feature-card-main strong { grid-column: 1 / -1; justify-self: start; } .feature-card-main > img { width: 58px; height: 58px; padding: 12px; } .feature-card { min-height: 0; } .faq-list summary { min-height: 64px; padding: 16px; } .faq-list details p { padding: 0 16px 18px; } .download-inner { flex-direction: column; align-items: flex-start; width: min(calc(100% - 28px),1080px); padding: 58px 0; } .download-button { align-self: center; } .back-to-top { right: 14px; bottom: 14px; } a, button, summary, .desktop-download, .mobile-download, .primary-button, .download-button, .back-to-top { transition: none; } }
@media (max-width: 390px) { .header-actions { gap: 6px; } .mobile-download { padding: 8px; } .brand small { font-size: 11px; } .feature-card { padding: 22px; } }