*{box-sizing:border-box}
html,body{margin:0;max-width:100%;overflow-x:hidden}
html{scroll-behavior:smooth}
body{font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;background:#FFFFFF;color:#1F2329;line-height:1.8}
a{color:inherit}
img,.media,.card,.grid>*{max-width:100%}
button,input,select,textarea{font:inherit}
.skip-link{position:fixed;left:12px;top:-60px;z-index:12000;background:#11151C;color:#fff;padding:8px 14px;border-radius:8px;text-decoration:none}
.skip-link:focus{top:10px}
:focus-visible{outline:2px solid #C90000;outline-offset:3px}
.site-header{position:sticky;top:0;z-index:9999;width:100%;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(201,0,0,.08);backdrop-filter:blur(10px)}
.header-inner{max-width:1280px;min-height:74px;margin:0 auto;padding:0 22px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.site-logo,.drawer-logo,.footer-logo{display:flex;align-items:center;text-decoration:none;flex:0 0 auto}
.site-logo img{display:block;height:48px;width:auto;max-width:160px;object-fit:contain}
.logo-text{font-size:28px;font-weight:900;letter-spacing:.04em;color:#C90000}
.logo-ph{display:block;width:132px;height:40px;border-radius:10px;background:linear-gradient(160deg,#F1F3F6,#FFFFFF);border:1px solid #F1F3F6}
.logo-ph-footer{background:#202630;border-color:rgba(255,255,255,.08)}
.nav-core{display:flex;align-items:center;gap:18px;white-space:nowrap;flex-wrap:nowrap}
.nav-core a{color:#1F2329;padding:10px 4px;position:relative;font-weight:700;text-decoration:none}
.nav-core a:hover,.nav-core a.active{color:#C90000}
.nav-core a.active::after{content:"";position:absolute;left:0;right:0;bottom:-10px;height:3px;border-radius:999px;background:#C90000}
.header-reg-btn,.btn-primary{height:44px;min-width:88px;padding:0 22px;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(180deg,#F12B2B 0%,#C90000 55%,#A80000 100%);color:#FFFFFF;border-radius:999px;text-decoration:none;font-weight:700;white-space:nowrap;box-shadow:0 8px 18px rgba(201,0,0,.18)}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:#C90000;font-weight:700;text-decoration:none}
.btn-link::after{content:"→"}
.menu-btn{display:none;width:42px;height:42px;border:1px solid rgba(201,0,0,.12);background:#fff;border-radius:12px;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.menu-btn span{width:18px;height:2px;background:#1F2329;border-radius:3px}
.site-shell{max-width:1280px;margin:0 auto;padding:28px 22px 0;display:grid;grid-template-columns:224px minmax(0,1fr);gap:32px}
.side-channel{align-self:start;position:sticky;top:98px;background:#fff;border:1px solid rgba(201,0,0,.12);border-radius:18px;padding:16px;box-shadow:0 12px 30px rgba(18,28,45,.08);max-height:calc(100vh - 120px);overflow:auto}
.side-channel section+section{margin-top:14px;padding-top:14px;border-top:1px solid #F1F3F6}
.side-channel h2{margin:0 0 7px;font-size:14px;color:#8A93A0;letter-spacing:.12em}
.side-channel a{display:block;text-decoration:none;padding:7px 10px;border-radius:9px;color:#5D6673;font-weight:600;font-size:14px}
.side-channel a:hover,.side-channel a.active{color:#C90000;background:rgba(201,0,0,.06)}
.site-main{min-width:0}
.section{padding:72px 0}
.section.compact{padding:52px 0}
.section-soft{background:#F6F7F9;border-radius:22px;padding-left:28px;padding-right:28px}
.section-alt{background:#F1F3F6;border-radius:22px;padding-left:28px;padding-right:28px}
.section-heading{max-width:850px;margin-bottom:28px}
.eyebrow{display:inline-block;margin-bottom:9px;color:#C90000;font-weight:800;font-size:14px;letter-spacing:.08em}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(34px,4.4vw,54px);line-height:1.18;margin-bottom:18px;letter-spacing:-.03em}
h2{font-size:clamp(26px,3vw,34px);line-height:1.28;margin-bottom:14px}
h3{font-size:21px;line-height:1.4;margin-bottom:10px}
.lead{font-size:18px;color:#5D6673;max-width:820px}
.muted{color:#5D6673}
.note{font-size:15px;color:#8A93A0}
.hero-copy{padding:58px 0 34px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.hero-slider{position:relative;margin:10px 0 14px}
.hero-slide{display:none}
.hero-slide.is-active{display:block}
.slider-control{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:42px;height:42px;border:1px solid rgba(201,0,0,.12);background:rgba(255,255,255,.92);border-radius:50%;cursor:pointer;font-size:24px;color:#1F2329;box-shadow:0 8px 18px rgba(18,28,45,.08)}
.slider-prev{left:14px}.slider-next{right:14px}
.slider-dots{position:absolute;left:0;right:0;bottom:12px;z-index:4;display:flex;justify-content:center;gap:8px}
.slider-dot{width:10px;height:10px;padding:0;border:0;border-radius:50%;background:#D7DBE1;cursor:pointer}
.slider-dot.is-active{background:#C90000}
.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:16px;background:#F7F8FA}
.media>img{position:absolute;inset:0;width:100%;height:100%;max-width:100%;object-fit:contain;object-position:center center;display:block}
.media-ph{width:100%;height:100%;background:linear-gradient(160deg,#F1F3F6,#FFFFFF)}
.media-card{aspect-ratio:16/10;max-height:210px}
.media-block{aspect-ratio:16/10;max-height:300px}
.media-banner{aspect-ratio:16/6;min-height:260px;max-height:360px}
.media-app{aspect-ratio:9/16;max-width:280px;max-height:460px;margin:0 auto}
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{background:#fff;border:1px solid rgba(201,0,0,.12);border-radius:16px;padding:22px;box-shadow:0 12px 30px rgba(18,28,45,.08);transition:transform .2s ease,border-color .2s ease}
.card:hover{transform:translateY(-3px);border-color:rgba(201,0,0,.3)}
.card p:last-child{margin-bottom:0}
.card .media{margin-bottom:16px}
.split{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);gap:32px;align-items:center}
.split.reverse{grid-template-columns:minmax(280px,.85fr) minmax(0,1.15fr)}
.list-clean{margin:0;padding:0;list-style:none;display:grid;gap:11px}
.list-clean li{padding-left:20px;position:relative}
.list-clean li::before{content:"";position:absolute;left:0;top:.82em;width:7px;height:7px;border-radius:50%;background:#C90000}
.pill-row{display:flex;gap:8px;flex-wrap:wrap}
.pill{display:inline-flex;padding:6px 11px;border-radius:999px;background:rgba(201,0,0,.06);color:#C90000;font-size:14px;font-weight:700}
.quote{border-left:3px solid #C90000;padding-left:16px;color:#5D6673}
.article{max-width:860px}
.article p{font-size:17px;line-height:1.88}
.related{display:flex;flex-wrap:wrap;gap:10px}
.related a{padding:8px 13px;border-radius:999px;background:#F6F7F9;color:#1F2329;text-decoration:none;font-weight:700}
.related a:hover{color:#C90000}
.faq-list{display:grid;gap:12px}
.faq-item{border:1px solid rgba(201,0,0,.12);border-radius:14px;background:#fff;overflow:hidden}
.faq-q{width:100%;border:0;background:#fff;text-align:left;padding:17px 18px;color:#1F2329;font-weight:800;cursor:pointer;display:flex;justify-content:space-between;gap:16px}
.faq-q::after{content:"＋";color:#C90000}
.faq-q[aria-expanded="true"]::after{content:"－"}
.faq-a{padding:0 18px 18px;color:#5D6673}
.notice{padding:20px 22px;border-radius:16px;background:#F6F7F9;border-left:4px solid #C90000}
.site-footer{margin-top:72px;background:#11151C;color:#E7ECF3;border-top:1px solid rgba(255,255,255,.08)}
.footer-inner{max-width:1280px;margin:0 auto;padding:48px 22px;display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:32px}
.footer-brand p{color:#AEB7C4;max-width:280px;margin-top:14px}
.footer-logo img{height:44px;width:auto;max-width:150px;object-fit:contain}
.footer-logo-text{color:#fff}
.footer-inner nav{display:grid;align-content:start;gap:9px}
.footer-inner nav a{text-decoration:none;color:#E7ECF3;font-size:14px}
.footer-inner nav a:hover{color:#fff}
.footer-bottom{max-width:1280px;margin:0 auto;padding:18px 22px 30px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;gap:24px;color:#AEB7C4;font-size:13px}
.footer-bottom p{margin:0}
.mobile-bottom-nav{display:none}
.mobile-drawer{position:fixed;left:0;top:0;bottom:0;width:min(84vw,320px);z-index:11001;background:#fff;transform:translateX(-104%);visibility:hidden;pointer-events:none;transition:transform .22s ease,visibility .22s ease;box-shadow:20px 0 45px rgba(18,28,45,.15)}
.mobile-drawer.open{transform:translateX(0);visibility:visible;pointer-events:auto}
.drawer-mask{position:fixed;inset:0;z-index:11000;background:rgba(17,21,28,.55);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .22s ease,visibility .22s ease}
.drawer-mask.show{opacity:1;visibility:visible;pointer-events:auto}
.drawer-head{height:74px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-bottom:1px solid #F1F3F6}
.drawer-logo img{height:42px;width:auto;max-width:145px;object-fit:contain}
.drawer-close{width:40px;height:40px;border:1px solid #E1E4E8;background:#fff;border-radius:12px;font-size:26px;line-height:1}
.drawer-scroll{height:calc(100% - 74px);overflow:auto;padding:12px 14px 32px}
.drawer-group{padding:10px 0}
.drawer-group strong{display:block;color:#8A93A0;font-size:13px;padding:0 10px 6px}
.drawer-group a{display:block;padding:9px 10px;border-top:1px solid #F1F3F6;text-decoration:none;color:#1F2329}
.drawer-group a.active{color:#C90000;border-left:3px solid #C90000;padding-left:9px}
body.drawer-open{overflow:hidden}
@media(max-width:1100px){
  .site-shell{grid-template-columns:1fr}
  .side-channel{display:none}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:900px){
  .nav-core{gap:11px}.nav-core a{font-size:14px}
  .header-inner{gap:12px;padding:0 16px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split,.split.reverse{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:767px){
  .header-inner{min-height:64px;display:grid;grid-template-columns:48px minmax(0,1fr) 86px;gap:8px;padding:0 12px}
  .menu-btn{display:flex}
  .site-logo{justify-content:center}
  .site-logo img{height:40px;max-width:138px}
  .nav-core{display:none}
  .header-reg-btn{height:40px;min-width:74px;padding:0 16px;justify-self:end}
  .site-shell{padding:18px 14px 0}
  .section{padding:54px 0}
  .section.compact{padding:42px 0}
  .section-soft,.section-alt{padding-left:18px;padding-right:18px;border-radius:18px}
  .hero-copy{padding:42px 0 24px}
  .lead{font-size:17px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .media-banner{min-height:150px;max-height:210px}
  .media-card{max-height:160px}
  .media-block{max-height:200px}
  .media-app{max-width:200px;max-height:340px}
  .slider-control{width:38px;height:38px}
  .footer-inner{grid-template-columns:1fr;padding-bottom:90px}
  .footer-bottom{display:grid;padding-bottom:92px}
  .mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:9998;height:64px;display:grid;grid-template-columns:repeat(4,1fr);background:rgba(255,255,255,.97);border-top:1px solid rgba(201,0,0,.12);padding-bottom:env(safe-area-inset-bottom)}
  .mobile-bottom-nav a{display:flex;align-items:center;justify-content:center;text-decoration:none;font-size:14px;font-weight:800;color:#1F2329}
}
@media(max-width:430px){
  .header-inner{grid-template-columns:44px minmax(0,1fr) 78px;padding:0 10px}
  .site-logo img{height:36px;max-width:124px}
  .header-reg-btn{min-width:68px;padding:0 13px}
  h1{font-size:34px}
}
@media(prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important;transition:none!important;animation:none!important}
  .card:hover{transform:none}
}