* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; overflow-x: hidden; overflow-y: auto; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif; color: #222222; background: linear-gradient(180deg, #F6F8FF 0%, #ECF0FF 48%, #EAF7FF 100%); line-height: 1.75; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
.site-header { position: sticky; top: 0; width: 100%; z-index: 9999; background: linear-gradient(135deg, #F7F9FF 0%, #ECF0FF 52%, #EAF7FF 100%); backdrop-filter: blur(12px); box-shadow: 0 8px 24px rgba(89, 126, 247, 0.10); }
.header-inner { max-width: 1280px; margin: 0 auto; min-height: 72px; padding: 0 22px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.brand img, .drawer-logo img, .footer-brand img { width: 148px; height: auto; object-fit: contain; }
.desktop-nav { display: flex; align-items: center; justify-content: center; gap: 4px; flex: 1; }
.desktop-nav a { padding: 8px 10px; border-radius: 999px; color: #3F4A66; font-size: 14px; font-weight: 700; transition: all .22s ease; white-space: nowrap; }
.desktop-nav a:hover, .desktop-nav a.active { color: #597EF7; background: rgba(89, 126, 247, 0.10); }
.main-btn { display: inline-flex; align-items: center; justify-content: center; padding: 12px 28px; border-radius: 999px; background: linear-gradient(135deg, #7580EE 0%, #597EF7 48%, #7AC4F5 100%); color: #FFFFFF; font-weight: 700; text-decoration: none; box-shadow: 0 0 10px rgba(89, 126, 247, 0.28), 0 0 22px rgba(122, 196, 245, 0.20), 0 10px 24px rgba(89, 126, 247, 0.20); transition: all 0.25s ease; border: none; cursor: pointer; }
.main-btn:hover { transform: translateY(-1px); box-shadow: 0 0 14px rgba(89, 126, 247, 0.36), 0 0 28px rgba(122, 196, 245, 0.26), 0 14px 28px rgba(89, 126, 247, 0.24); }
.header-cta { flex: 0 0 auto; padding: 10px 22px; font-size: 14px; }
.mobile-menu-btn { display: none; width: 42px; height: 42px; border: 1px solid rgba(89,126,247,.18); background: rgba(255,255,255,.75); border-radius: 14px; align-items: center; justify-content: center; flex-direction: column; gap: 5px; }
.mobile-menu-btn span { width: 20px; height: 2px; background: #1D2B5F; border-radius: 4px; }
.drawer-overlay { position: fixed; inset: 0; background: rgba(18, 25, 45, .42); opacity: 0; pointer-events: none; transition: opacity .25s ease; z-index: 10000; }
.mobile-drawer { position: fixed; top: 0; left: 0; bottom: 0; width: min(82vw, 340px); background: linear-gradient(180deg, #FFFFFF 0%, #F6F8FF 100%); transform: translateX(-104%); transition: transform .28s ease; z-index: 10001; box-shadow: 20px 0 42px rgba(29, 43, 95, .18); padding: 20px; overflow-y: auto; }
.drawer-open .drawer-overlay { opacity: 1; pointer-events: auto; }
.drawer-open .mobile-drawer { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.drawer-close { width: 38px; height: 38px; border: 0; border-radius: 12px; background: rgba(89,126,247,.10); color: #1D2B5F; font-size: 28px; line-height: 1; cursor: pointer; }
.drawer-nav { display: grid; gap: 8px; }
.drawer-nav a { padding: 12px 14px; border-radius: 14px; color: #3F4A66; font-weight: 700; background: rgba(255,255,255,.72); border: 1px solid rgba(89,126,247,.10); }
.drawer-nav a.active, .drawer-nav a:hover { background: rgba(89,126,247,.12); color: #597EF7; }
.drawer-note { margin-top: 18px; padding: 14px; border-radius: 16px; background: #ECF0FF; color: #5B647A; font-size: 14px; }
main { min-height: 60vh; }
.container { width: min(1200px, calc(100% - 40px)); margin: 0 auto; }
.section { padding: 54px 0; }
.section.tight { padding: 34px 0; }
.section-head { margin-bottom: 26px; display: flex; justify-content: space-between; align-items: end; gap: 18px; }
.section-kicker { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 8px; color: #597EF7; font-weight: 800; letter-spacing: .04em; }
.section-kicker:before { content: ""; width: 24px; height: 3px; border-radius: 8px; background: linear-gradient(135deg,#7580EE,#7AC4F5); }
h1, h2, h3 { color: #1D2B5F; line-height: 1.25; margin: 0; }
h1 { font-size: clamp(32px, 5vw, 54px); letter-spacing: -0.03em; }
h2 { font-size: clamp(26px, 3.4vw, 38px); letter-spacing: -0.02em; }
h3 { font-size: 20px; }
p { margin: 0; color: #5B647A; }
.lead { font-size: 18px; color: #3F4A66; max-width: 820px; }
.page-hero { padding: 62px 0 38px; position: relative; }
.page-hero .hero-card { background: rgba(255,255,255,.76); border: 1px solid rgba(89,126,247,.16); border-radius: 28px; padding: clamp(28px, 5vw, 54px); box-shadow: 0 24px 56px rgba(89, 126, 247, .12); overflow: hidden; position: relative; }
.page-hero .hero-card:after { content: ""; position: absolute; right: -80px; top: -80px; width: 260px; height: 260px; background: radial-gradient(circle, rgba(122,196,245,.32), rgba(122,196,245,0) 68%); }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 34px; align-items: center; }
.hero-actions { margin-top: 24px; display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.text-link { color: #597EF7; font-weight: 800; }
.text-link:hover { text-decoration: underline; }
.banner-slider { max-width: 1200px; margin: 28px auto 36px; border-radius: 20px; background: #101827; box-shadow: 0 22px 48px rgba(16, 24, 39, 0.20); overflow: hidden; position: relative; height: clamp(210px, 34vw, 420px); }
.slide { position: absolute; inset: 0; opacity: 0; transition: opacity .45s ease; }
.slide.active { opacity: 1; z-index: 1; }
.slide img { width: 100%; height: 100%; object-fit: contain; background: #101827; }
.slider-arrow { position: absolute; top: 50%; transform: translateY(-50%); z-index: 3; width: 44px; height: 44px; border-radius: 50%; border: 1px solid rgba(255,255,255,.42); background: rgba(255,255,255,.82); color: #1D2B5F; font-size: 28px; cursor: pointer; box-shadow: 0 10px 20px rgba(0,0,0,.18); }
.slider-prev { left: 18px; }
.slider-next { right: 18px; }
.slider-dots { position: absolute; left: 0; right: 0; bottom: 16px; display: flex; justify-content: center; gap: 8px; z-index: 4; }
.slider-dot { width: 9px; height: 9px; border: 0; border-radius: 999px; background: rgba(255,255,255,.62); cursor: pointer; transition: width .22s ease, background .22s ease; }
.slider-dot.active { width: 26px; background: linear-gradient(135deg,#597EF7,#7AC4F5); }
.quick-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.quick-card, .info-card, .matrix-card, .faq-card, .notice-card, .contact-card { background: rgba(255,255,255,.86); border: 1px solid rgba(89, 126, 247, 0.16); border-radius: 22px; box-shadow: 0 16px 38px rgba(89,126,247,.09); }
.quick-card { padding: 18px; display: grid; gap: 8px; min-height: 132px; }
.quick-card .num, .info-card .num { color: #597EF7; font-weight: 900; font-size: 18px; }
.quick-card h3 { font-size: 18px; }
.quick-card p { font-size: 14px; }
.intro-strip { border-radius: 24px; padding: 28px; background: linear-gradient(135deg, rgba(89,126,247,.12), rgba(122,196,245,.15)); border: 1px solid rgba(89,126,247,.18); box-shadow: inset 0 1px 0 rgba(255,255,255,.86); }
.info-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.info-card { padding: 24px; }
.info-card ul, .article-card ul, .feature-list, .page-list { margin: 16px 0 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.info-card li, .article-card li, .feature-list li, .page-list li { color: #3F4A66; padding-left: 18px; position: relative; }
.info-card li:before, .article-card li:before, .feature-list li:before, .page-list li:before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: #597EF7; position: absolute; left: 0; top: .72em; }
.article-stack { display: grid; gap: 30px; }
.article-card { display: grid; grid-template-columns: .95fr 1.05fr; gap: 32px; align-items: center; padding: 26px; border-radius: 28px; background: rgba(255,255,255,.86); border: 1px solid rgba(89,126,247,.16); box-shadow: 0 18px 42px rgba(89,126,247,.10); }
.article-card.reverse { grid-template-columns: 1.05fr .95fr; }
.article-card.reverse .article-img { order: 2; }
.article-img { border-radius: 22px; overflow: hidden; background: #ECF0FF; }
.article-img img { width: 100%; aspect-ratio: 16/10; object-fit: contain; background: #ECF0FF; }
.article-body { display: grid; gap: 12px; }
.article-label, .tag { display: inline-flex; width: fit-content; padding: 5px 12px; border-radius: 999px; color: #597EF7; background: rgba(89,126,247,.10); font-size: 13px; font-weight: 800; }
.matrix-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.matrix-card { overflow: hidden; }
.matrix-card img { width: 100%; aspect-ratio: 16/10; object-fit: contain; background: #ECF0FF; }
.matrix-body { padding: 20px; display: grid; gap: 10px; }
.app-showcase, .support-showcase { display: grid; grid-template-columns: .9fr 1.1fr; gap: 34px; align-items: center; padding: 30px; border-radius: 30px; background: rgba(255,255,255,.86); border: 1px solid rgba(89,126,247,.16); box-shadow: 0 18px 44px rgba(89,126,247,.10); }
.app-showcase img, .support-showcase img { border-radius: 24px; width: 100%; aspect-ratio: 4/3; object-fit: contain; background: #ECF0FF; }
.feature-pills { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 18px 0; }
.feature-pill { padding: 13px 16px; border-radius: 16px; background: #F6F8FF; border: 1px solid rgba(89,126,247,.14); color: #3F4A66; font-weight: 700; }
.safety-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.notice-card { padding: 20px; }
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.faq-card { padding: 22px; }
.faq-card h3 { margin-bottom: 8px; }
.responsible-box { padding: 28px; border-radius: 26px; background: linear-gradient(135deg, #1D2B5F, #597EF7); color: #fff; box-shadow: 0 20px 42px rgba(29,43,95,.20); }
.responsible-box h2, .responsible-box p, .responsible-box li { color: #fff; }
.responsible-box ul { margin: 18px 0 0; display: grid; gap: 8px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.content-card { padding: 28px; background: rgba(255,255,255,.86); border: 1px solid rgba(89,126,247,.16); border-radius: 26px; box-shadow: 0 18px 42px rgba(89,126,247,.10); }
.content-card h2, .content-card h3 { margin-bottom: 12px; }
.content-card p + p { margin-top: 12px; }
.icon-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.step-list { counter-reset: step; display: grid; gap: 16px; }
.step-item { counter-increment: step; display: grid; grid-template-columns: auto 1fr; gap: 16px; padding: 20px; border-radius: 22px; background: rgba(255,255,255,.86); border: 1px solid rgba(89,126,247,.16); }
.step-item:before { content: counter(step, decimal-leading-zero); width: 48px; height: 48px; border-radius: 16px; display: inline-flex; align-items: center; justify-content: center; color: #fff; font-weight: 900; background: linear-gradient(135deg,#7580EE,#7AC4F5); box-shadow: 0 10px 22px rgba(89,126,247,.20); }
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.contact-card { padding: 24px; }
.site-footer { margin-top: 54px; background: linear-gradient(135deg, #1F1F1F 0%, #2B2B2B 100%); color: #E8ECF5; }
.footer-inner { width: min(1200px, calc(100% - 40px)); margin: 0 auto; padding: 46px 0 34px; display: grid; grid-template-columns: 1.35fr repeat(3, 1fr); gap: 28px; }
.footer-brand p, .footer-bottom p { color: #E8ECF5; opacity: .82; }
.footer-brand img { margin-bottom: 16px; filter: drop-shadow(0 0 12px rgba(122,196,245,.18)); }
.footer-links { display: grid; align-content: start; gap: 8px; }
.footer-links h3 { color: #fff; margin-bottom: 4px; }
.footer-links a { color: #E8ECF5; opacity: .84; }
.footer-links a:hover { color: #7AC4F5; opacity: 1; }
.footer-bottom { border-top: 1px solid rgba(232,236,245,.12); padding: 18px 20px; text-align: center; }
@media (max-width: 1120px) { .desktop-nav { display: none; } .mobile-menu-btn { display: inline-flex; } .header-inner { display: grid; grid-template-columns: 48px 1fr auto; } .brand { justify-self: center; } .quick-grid, .info-grid { grid-template-columns: repeat(2, 1fr); } .matrix-grid { grid-template-columns: repeat(2, 1fr); } .footer-inner { grid-template-columns: 1fr 1fr; } }
@media (max-width: 780px) { .container { width: min(100% - 28px, 1200px); } .header-inner { min-height: 66px; padding: 0 14px; gap: 8px; } .brand img, .drawer-logo img { width: 126px; } .header-cta { padding: 9px 14px; font-size: 13px; } .page-hero { padding: 34px 0 20px; } .hero-grid, .article-card, .article-card.reverse, .app-showcase, .support-showcase, .two-col { grid-template-columns: 1fr; } .article-card.reverse .article-img { order: 0; } .quick-grid { display: flex; overflow-x: auto; padding-bottom: 8px; scroll-snap-type: x mandatory; } .quick-card { min-width: 220px; scroll-snap-align: start; } .info-grid, .matrix-grid, .feature-pills, .safety-grid, .faq-grid, .icon-grid, .contact-grid { grid-template-columns: 1fr; } .section { padding: 38px 0; } .section-head { display: block; } .slider-arrow { width: 36px; height: 36px; font-size: 22px; } .footer-inner { grid-template-columns: 1fr; padding-top: 36px; } }
@media (max-width: 480px) { h1 { font-size: 30px; } .banner-slider { height: 190px; border-radius: 16px; } .page-hero .hero-card, .content-card, .app-showcase, .support-showcase, .responsible-box { padding: 22px; border-radius: 22px; } .article-card { padding: 18px; } .slider-prev { left: 10px; } .slider-next { right: 10px; } }