:root{
  --brand: rgb(213, 5, 5);
  --brand-dark: rgb(180, 4, 4);
  --brand-hover: rgb(165, 3, 3);
  --text: #171717;
  --muted: #5d6470;
  --light: #f6f7f9;
  --line: #e8e8ec;
  --card: #ffffff;
  --shadow: 0 12px 30px rgba(20,20,20,.08);
  --radius: 18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  color:var(--text);
  background:#fff;
  line-height:1.72;
  -webkit-text-size-adjust:100%;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
p{margin:0 0 14px;color:var(--muted)}
h1,h2,h3{margin:0;color:#111;line-height:1.25}
ul{margin:0;padding:0;list-style:none}
.container{width:min(1160px, calc(100% - 32px));margin:0 auto}
.site-header{background:#fff;position:relative;z-index:20;border-bottom:1px solid var(--line)}
.desktop-topbar,.desktop-header{display:none}
.mobile-header{
  height:64px;
  display:grid;
  grid-template-columns:48px 1fr auto;
  align-items:center;
  gap:12px;
  padding:0 16px;
  background:#fff;
  border-bottom:3px solid var(--brand-dark);
}
.menu-toggle{
  width:42px;height:42px;border:0;background:transparent;border-radius:12px;display:flex;flex-direction:column;justify-content:center;gap:5px;padding:0 8px;cursor:pointer
}
.menu-toggle span{height:3px;background:var(--brand-dark);border-radius:4px;width:24px;display:block;transition:.25s}
.menu-toggle.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
.mobile-logo{justify-self:center}
.logo img,.mobile-logo img{height:38px;width:auto;object-fit:contain}
.top-action,.main-btn{
  display:inline-flex;align-items:center;justify-content:center;border-radius:999px;background:var(--brand);color:#fff;font-weight:700;letter-spacing:.02em;transition:.2s;border:1px solid var(--brand)
}
.top-action{height:38px;min-width:76px;padding:0 18px;font-size:14px}
.main-btn{height:48px;padding:0 28px;box-shadow:0 10px 24px rgba(213,5,5,.18)}
.top-action:hover,.main-btn:hover{background:var(--brand-hover);border-color:var(--brand-hover);transform:translateY(-1px)}
.mobile-nav{
  display:none;background:#fff;border-bottom:1px solid var(--line);padding:8px 16px 14px;box-shadow:0 16px 24px rgba(0,0,0,.06)
}
.mobile-nav.open{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.mobile-nav a{
  padding:11px 12px;border:1px solid var(--line);border-radius:12px;color:#282828;font-weight:600;background:#fff
}
.mobile-nav a.active{border-color:rgba(213,5,5,.18);background:rgba(213,5,5,.07);color:var(--brand)}
.search-icon{
  width:36px;height:36px;border:1px solid var(--line);border-radius:50%;position:relative;display:inline-block;background:#fff
}
.search-icon:before{
  content:"";position:absolute;width:12px;height:12px;border:2px solid var(--brand-dark);border-radius:50%;left:9px;top:8px
}
.search-icon:after{
  content:"";position:absolute;width:9px;height:2px;background:var(--brand-dark);transform:rotate(45deg);left:20px;top:22px;border-radius:3px
}
.section{padding:54px 0}
.section.alt{background:var(--light)}
.section-head{margin-bottom:24px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-weight:800;font-size:14px;margin-bottom:8px
}
.eyebrow:before{content:"";width:24px;height:3px;background:var(--brand);border-radius:4px}
.section-title{font-size:28px;letter-spacing:-.02em;margin-bottom:10px}
.section-desc{max-width:780px;color:var(--muted)}
.official-hero{
  background:linear-gradient(180deg,#fff 0%,#fff5f5 55%,#fff 100%);
  padding:36px 0 42px;
}
.hero-grid{display:grid;gap:28px;align-items:center}
.hero-copy h1{font-size:36px;margin-bottom:16px}
.hero-copy p{font-size:16px}
.hero-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin:20px 0 18px}
.hero-note{font-size:13px;color:#6b6b6b}
.hero-visual{
  background:#fff;border:1px solid rgba(213,5,5,.12);border-radius:28px;padding:12px;box-shadow:var(--shadow);position:relative;overflow:hidden
}
.hero-visual:after{
  content:"";position:absolute;inset:auto -40px -60px auto;width:180px;height:180px;background:rgba(213,5,5,.09);border-radius:50%
}
.hero-visual img{border-radius:22px;position:relative;z-index:1;width:100%;height:auto}
.service-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.service-tags span{background:#fff;border:1px solid rgba(213,5,5,.12);color:#343434;border-radius:999px;padding:8px 12px;font-size:13px;box-shadow:0 6px 18px rgba(0,0,0,.04)}
.category-main-grid{display:grid;grid-template-columns:1fr;gap:16px;margin-bottom:16px}
.category-sub-grid{display:grid;grid-template-columns:1fr;gap:12px}
.category-main-card,.category-sub-card,.focus-card,.info-panel,.info-item,.simple-card,.score-card,.faq-item,.page-card,.notice-box{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 24px rgba(0,0,0,.04)
}
.category-main-card{padding:22px;min-height:220px;display:flex;flex-direction:column;justify-content:space-between}
.category-sub-card{padding:18px}
.card-label{
  display:inline-flex;align-self:flex-start;padding:5px 10px;border-radius:999px;background:rgba(213,5,5,.08);color:var(--brand);font-size:13px;font-weight:800;margin-bottom:10px
}
.category-main-card h3,.category-sub-card h3,.focus-card h3,.simple-card h3,.page-card h3{font-size:21px;margin-bottom:10px}
.text-link{color:var(--brand);font-weight:800;display:inline-flex;align-items:center;gap:6px;margin-top:8px}
.text-link:after{content:"›";font-size:22px;line-height:1}
.focus-grid{display:grid;grid-template-columns:1fr;gap:16px}
.focus-card{padding:22px;position:relative;overflow:hidden}
.focus-card:before{content:"";position:absolute;left:0;top:0;width:5px;height:100%;background:var(--brand)}
.split-grid{display:grid;gap:18px}
.info-panel{padding:22px}
.info-panel h3{font-size:24px;margin-bottom:12px}
.info-list{display:grid;gap:12px;margin-top:14px}
.info-item{padding:16px;box-shadow:none}
.info-item h4{margin:0 0 6px;color:#111}
.info-media{border-radius:22px;overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
.info-media img{width:100%;height:100%;object-fit:cover}
.showcase-grid{display:grid;gap:22px;align-items:center}
.showcase-image{border-radius:26px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:#fff}
.check-list{display:grid;gap:10px;margin-top:16px}
.check-list li{position:relative;padding-left:28px;color:#3c3c3c}
.check-list li:before{content:"";position:absolute;left:0;top:9px;width:15px;height:15px;border-radius:50%;background:var(--brand)}
.check-list li:after{content:"";position:absolute;left:5px;top:12px;width:4px;height:8px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg)}
.score-data{display:grid;gap:20px;align-items:center}
.score-cards{display:grid;grid-template-columns:1fr;gap:14px}
.score-card{padding:18px}
.score-card strong{display:block;color:var(--brand);font-size:24px;margin-bottom:5px}
.score-card h3{font-size:18px;margin-bottom:6px}
.app-showcase{
  background:#fff;border:1px solid var(--line);border-radius:28px;padding:22px;box-shadow:var(--shadow);display:grid;gap:22px;align-items:center
}
.security-grid,.page-grid{display:grid;grid-template-columns:1fr;gap:14px}
.simple-card,.page-card{padding:20px}
.responsible-box,.notice-box{
  background:#fafafa;border:1px solid var(--line);border-left:6px solid var(--brand);border-radius:18px;padding:22px
}
.responsible-box strong,.notice-box strong{display:block;color:#111;margin-bottom:8px;font-size:18px}
.faq-list{display:grid;gap:12px}
.faq-item{padding:18px}
.faq-item h3{font-size:18px;margin-bottom:8px}
.cta-box{
  background:linear-gradient(135deg,#fff,#fff1f1);
  border:1px solid rgba(213,5,5,.16);border-radius:28px;padding:28px;text-align:center;box-shadow:var(--shadow)
}
.cta-box h2{font-size:28px;margin-bottom:10px}
.page-hero{background:linear-gradient(180deg,#fff 0%,#fff4f4 100%);padding:42px 0;border-bottom:1px solid rgba(213,5,5,.12)}
.page-hero h1{font-size:34px;margin-bottom:14px}
.page-hero p{max-width:840px;font-size:16px}
.breadcrumb{font-size:14px;color:var(--muted);margin-bottom:12px}
.breadcrumb a{color:var(--brand);font-weight:700}
.page-layout{display:grid;gap:22px}
.content-block{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:0 10px 24px rgba(0,0,0,.04)}
.content-block h2{font-size:24px;margin-bottom:12px}
.content-block h3{font-size:20px;margin:16px 0 8px}
.number-list{counter-reset:item;display:grid;gap:12px;margin:16px 0}
.number-list li{counter-increment:item;position:relative;padding:14px 14px 14px 52px;border:1px solid var(--line);border-radius:16px;background:#fff}
.number-list li:before{content:counter(item);position:absolute;left:16px;top:15px;width:24px;height:24px;border-radius:50%;background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:800;font-size:13px}
.related-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.related-links a{border:1px solid rgba(213,5,5,.18);background:rgba(213,5,5,.06);color:var(--brand);font-weight:800;border-radius:999px;padding:8px 13px}
.site-footer{background:#222;color:#fff;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:24px;padding:40px 0}
.footer-logo img{height:42px;margin-bottom:12px}
.site-footer p{color:#cfd2d6}
.footer-age{font-weight:700;color:#fff!important}
.site-footer h3{color:#fff;font-size:18px;margin-bottom:10px}
.site-footer a{display:block;color:#d9d9d9;margin:8px 0}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:14px 0;color:#d9d9d9;font-size:13px}
.footer-bottom .container{display:flex;flex-direction:column;gap:6px}
@media (min-width: 680px){
  .category-main-grid{grid-template-columns:repeat(2,1fr)}
  .category-sub-grid{grid-template-columns:repeat(2,1fr)}
  .focus-grid{grid-template-columns:repeat(2,1fr)}
  .score-cards{grid-template-columns:repeat(3,1fr)}
  .security-grid,.page-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:2fr 1fr 1fr 1fr}
}
@media (min-width: 980px){
  .mobile-header,.mobile-nav{display:none}
  .desktop-topbar{display:block;background:var(--brand-dark);color:#fff;font-size:13px}
  .topbar-inner{height:38px;display:flex;align-items:center;justify-content:space-between}
  .desktop-header{display:block;background:#fff;border-bottom:1px solid var(--line)}
  .desktop-nav-wrap{height:74px;display:flex;align-items:center;gap:28px}
  .logo img{height:44px}
  .desktop-nav{display:flex;align-items:center;gap:6px;flex:1;justify-content:center}
  .desktop-nav a{padding:10px 13px;border-radius:999px;font-weight:700;color:#242424;white-space:nowrap}
  .desktop-nav a.active,.desktop-nav a:hover{background:rgba(213,5,5,.07);color:var(--brand)}
  .header-tools{display:flex;align-items:center;gap:12px}
  .official-hero{padding:58px 0 66px}
  .hero-grid{grid-template-columns:1.02fr .98fr;gap:44px}
  .hero-copy h1{font-size:52px}
  .section{padding:76px 0}
  .section-title{font-size:36px}
  .category-main-grid{grid-template-columns:repeat(4,1fr)}
  .category-sub-grid{grid-template-columns:repeat(4,1fr)}
  .category-main-card:nth-child(1),.category-main-card:nth-child(4){transform:translateY(12px)}
  .split-grid{grid-template-columns:1fr 1fr}
  .showcase-grid{grid-template-columns:1fr 1fr}
  .score-data{grid-template-columns:1fr .95fr}
  .app-showcase{grid-template-columns:1fr .8fr;padding:34px}
  .page-layout{grid-template-columns:2fr 1fr}
  .page-layout.single{grid-template-columns:1fr}
  .page-hero{padding:58px 0}
  .page-hero h1{font-size:44px}
  .footer-bottom .container{flex-direction:row;align-items:center;justify-content:space-between}
}
@media (max-width: 390px){
  .container{width:min(100% - 24px, 1160px)}
  .top-action{min-width:68px;padding:0 14px}
  .hero-copy h1{font-size:31px}
  .section-title{font-size:25px}
  .mobile-nav.open{grid-template-columns:1fr}
}