:root{
  --brand: rgb(255, 80, 0);
  --brand-dark:#E85A00;
  --brand-soft:#FFF3EC;
  --bg:#F6F6F6;
  --card:#FFFFFF;
  --dark:#070707;
  --dark2:#111111;
  --text:#222222;
  --muted:#555555;
  --sub:#777777;
  --footer:#1F1F1F;
  --footer-text:#D8D8D8;
  --line:rgba(20,20,20,.08);
  --shadow:0 16px 40px 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","Microsoft YaHei",Arial,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
  overflow-x:hidden;
}
body.drawer-open{overflow:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.inner{width:min(1180px, calc(100% - 32px));margin:0 auto}

.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid rgba(0,0,0,.06);
  box-shadow:0 8px 24px rgba(0,0,0,.05);
  backdrop-filter:blur(12px);
}
.mobile-topbar{
  height:62px;
  display:grid;
  grid-template-columns:44px 1fr 94px;
  align-items:center;
  gap:6px;
  padding:0 12px;
}
.menu-toggle{
  width:40px;height:40px;border:0;background:#fff;border-radius:12px;
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;
  box-shadow:inset 0 0 0 1px rgba(0,0,0,.08);
}
.menu-toggle span{width:20px;height:2px;background:#222;border-radius:2px}
.mobile-logo{justify-self:center;display:flex;align-items:center;justify-content:center}
.mobile-logo img{height:34px;max-width:126px;object-fit:contain}
.main-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--brand);
  color:#fff;
  border-radius:999px;
  padding:10px 18px;
  font-weight:800;
  line-height:1.2;
  box-shadow:0 10px 24px rgba(255,80,0,.24);
  transition:.2s ease;
  white-space:nowrap;
}
.main-btn:hover{background:var(--brand-dark);transform:translateY(-1px)}
.header-btn{
  justify-self:end;
  font-size:13px;
  padding:9px 12px;
  min-width:82px;
}
.desktop-header{display:none}
.brand img,.drawer-logo img,.footer-brand img{height:42px;object-fit:contain}
.drawer-overlay{
  position:fixed;
  inset:0;
  z-index:70;
  background:rgba(0,0,0,.52);
}
.mobile-drawer{
  position:fixed;
  top:0;
  left:0;
  width:82vw;
  max-width:320px;
  height:100vh;
  z-index:80;
  background:#fff;
  transform:translateX(-105%);
  transition:transform .28s ease;
  box-shadow:24px 0 60px rgba(0,0,0,.2);
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{
  height:70px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 18px;
  border-bottom:1px solid var(--line);
}
.drawer-close{
  border:0;
  background:var(--brand-soft);
  color:var(--brand);
  width:34px;
  height:34px;
  border-radius:50%;
  font-size:24px;
  line-height:1;
}
.drawer-nav{display:grid;gap:6px;padding:18px}
.drawer-nav a{
  padding:13px 14px;
  border-radius:14px;
  color:#2d2d2d;
  font-weight:700;
}
.drawer-nav a.active,.drawer-nav a:hover{background:var(--brand-soft);color:var(--brand)}

.hero-section{
  position:relative;
  background:
    linear-gradient(100deg, rgba(0,0,0,.86) 0%, rgba(0,0,0,.72) 48%, rgba(0,0,0,.45) 100%),
    url('banner.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero-section::after{
  content:"";
  position:absolute;
  right:-12%;
  top:0;
  width:55%;
  height:100%;
  background:linear-gradient(135deg, rgba(255,80,0,.24), rgba(255,80,0,.02));
  transform:skewX(-13deg);
  transform-origin:top;
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:2;
  width:min(1240px, calc(100% - 32px));
  margin:0 auto;
  padding:52px 0 42px;
  display:grid;
  grid-template-columns:1fr;
  gap:22px;
  align-items:center;
  text-align:center;
}
.eyebrow,.section-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--brand);
  font-weight:900;
  letter-spacing:.04em;
  font-size:14px;
}
.eyebrow::before,.section-kicker::before{
  content:"";
  width:20px;
  height:3px;
  border-radius:999px;
  background:var(--brand);
}
.hero-title{
  margin:12px 0 14px;
  font-size:clamp(34px,8vw,68px);
  line-height:1.05;
  color:var(--brand);
  font-weight:950;
}
.hero-desc{
  margin:0 auto 22px;
  max-width:680px;
  color:#f5f5f5;
  font-size:16px;
}
.hero-btn{margin-bottom:18px}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:10px;
}
.hero-tags span{
  color:#fff;
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.1);
  border-radius:999px;
  padding:7px 12px;
  font-size:14px;
}
.hero-visual{
  position:relative;
  border-radius:24px;
  background:radial-gradient(circle at 50% 60%, rgba(255,80,0,.22), rgba(255,255,255,.04) 56%, transparent 72%);
  padding:0 8px;
}
.hero-visual img{
  width:100%;
  max-height:300px;
  object-fit:contain;
  margin:0 auto;
}

.quick-links{
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 1fr));
  gap:12px;
  margin:18px auto 0;
  position:relative;
  z-index:5;
}
.quick-card{
  background:#fff;
  border:1px solid rgba(255,80,0,.12);
  border-radius:16px;
  padding:14px;
  min-height:128px;
  box-shadow:0 10px 26px rgba(0,0,0,.07);
  transition:.2s ease;
}
.quick-card:hover{transform:translateY(-3px);border-color:rgba(255,80,0,.34)}
.quick-card span{
  display:inline-flex;
  width:30px;
  height:30px;
  border-radius:10px;
  align-items:center;
  justify-content:center;
  background:var(--brand-soft);
  color:var(--brand);
  font-weight:900;
  font-size:12px;
}
.quick-card strong{
  display:block;
  margin:8px 0 4px;
  font-size:16px;
  color:#161616;
}
.quick-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.55}

.section{padding:56px 0}
.section-light{background:#fff}
.section-head{text-align:center;max-width:780px;margin:0 auto 28px}
.section-head.left{text-align:left;margin-left:0}
.section-head h2,.app-copy h2,.notice-panel h2,.info-block h2,.prose-card h2{
  margin:10px 0 12px;
  line-height:1.25;
  color:#171717;
  font-size:clamp(24px,4vw,38px);
}
.section-head p,.app-copy p,.info-block p,.prose-card p,.notice-panel p{
  color:var(--muted);
  margin:0 0 14px;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand);
  font-weight:900;
  border-bottom:1px solid rgba(255,80,0,.32);
}
.text-link::after{content:"›";font-size:18px;line-height:1}

.featured-grid{
  display:grid;
  gap:18px;
}
.feature-card,.dual-card,.zone-card,.info-block,.prose-card,.side-panel,.faq-grid article,.faq-list article,.image-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.feature-card{overflow:hidden}
.feature-media{
  background:linear-gradient(135deg,#fff,var(--brand-soft));
  min-height:132px;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:12px;
}
.feature-media img{
  width:100%;
  max-height:150px;
  object-fit:contain;
  object-position:center;
}
.feature-body{padding:20px}
.tag{
  display:inline-flex;
  align-items:center;
  color:var(--brand);
  background:var(--brand-soft);
  border-radius:999px;
  padding:4px 10px;
  font-size:13px;
  font-weight:900;
}
.feature-body h3,.dual-content h3,.zone-card h3,.service-grid h3,.faq-grid h3,.side-panel h3,.image-card h2{
  margin:10px 0 8px;
  line-height:1.3;
  color:#151515;
}
.feature-body p,.dual-content p,.zone-card p,.service-grid p,.faq-grid p,.side-panel li,.image-card p,.faq-list p{
  color:var(--muted);
  margin:0 0 12px;
}

.dual-section{background:#f8f8f8}
.dual-grid{display:grid;gap:20px}
.dual-card{overflow:hidden}
.dual-img{
  background:linear-gradient(135deg,#fff,var(--brand-soft));
  padding:14px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.dual-img img{max-height:220px;object-fit:contain;margin:auto}
.dual-content{padding:22px}
.dual-content ul,.check-list{
  padding:0;
  margin:14px 0 16px;
  list-style:none;
  display:grid;
  gap:8px;
}
.dual-content li,.check-list li{
  position:relative;
  padding-left:22px;
  color:var(--muted);
}
.dual-content li::before,.check-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.7em;
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--brand);
}

.zone-grid{display:grid;gap:18px}
.zone-card{
  padding:16px;
  overflow:hidden;
}
.zone-card img{
  width:100%;
  max-height:150px;
  object-fit:contain;
  margin:0 auto 12px;
  border-radius:14px;
  background:linear-gradient(135deg,#fff,var(--brand-soft));
  padding:8px;
}
.zone-card.zone-wide{display:grid;gap:12px}

.app-band{
  background:linear-gradient(135deg,#fff,var(--brand-soft));
}
.app-split{
  display:grid;
  gap:22px;
  align-items:center;
}
.mini-list{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin:18px 0;
}
.mini-list span{
  background:#fff;
  border:1px solid rgba(255,80,0,.15);
  color:#333;
  border-radius:999px;
  padding:8px 12px;
  font-weight:700;
}
.app-visual{
  background:rgba(255,255,255,.8);
  border-radius:24px;
  padding:18px;
  border:1px solid rgba(255,80,0,.14);
  box-shadow:var(--shadow);
}
.app-visual img{max-height:360px;object-fit:contain;margin:0 auto}
.app-note{
  margin-top:12px;
  color:var(--muted);
  background:#fff;
  border-left:4px solid var(--brand);
  border-radius:12px;
  padding:12px 14px;
}

.service-grid{
  display:grid;
  gap:16px;
}
.service-grid article{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  padding:20px;
  box-shadow:0 10px 28px rgba(0,0,0,.05);
}
.service-grid article span{
  display:inline-flex;
  width:34px;
  height:34px;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  color:var(--brand);
  background:var(--brand-soft);
  font-weight:950;
}
.notice-section{background:#f7f7f7}
.notice-panel{
  background:linear-gradient(135deg,#191919,#2b2b2b);
  color:#fff;
  border-radius:24px;
  padding:26px;
  display:grid;
  gap:14px;
  box-shadow:0 18px 44px rgba(0,0,0,.16);
}
.notice-panel h2{color:#fff;margin:0}
.notice-panel p{color:#e8e8e8;margin:0}
.notice-panel .text-link{color:#fff;border-bottom-color:rgba(255,255,255,.42)}

.faq-grid{display:grid;gap:16px}
.faq-grid article,.faq-list article{padding:20px}
.faq-grid h3,.faq-list h2{color:#151515;margin:0 0 8px;line-height:1.35}
.center-link{text-align:center;margin-top:24px}

/* common inner pages */
.page-hero{
  background:
    linear-gradient(115deg, rgba(0,0,0,.9), rgba(20,20,20,.76)),
    radial-gradient(circle at 80% 50%, rgba(255,80,0,.22), transparent 36%);
  color:#fff;
  padding:48px 0;
  overflow:hidden;
}
.page-hero h1{
  margin:12px 0;
  color:var(--brand);
  font-size:clamp(32px,7vw,56px);
  line-height:1.08;
}
.page-hero p{max-width:760px;color:#f0f0f0;margin:0;font-size:16px}
.page-hero-split{display:grid;gap:24px;align-items:center}
.page-visual{
  background:radial-gradient(circle at center, rgba(255,80,0,.2), rgba(255,255,255,.05) 58%, transparent);
  border-radius:24px;
  padding:14px;
}
.page-visual img{
  width:100%;
  max-height:330px;
  object-fit:contain;
  margin:auto;
}
.content-layout{display:grid;gap:22px}
.prose-card{padding:24px}
.prose-card p{font-size:16px}
.side-panel{padding:22px;align-self:start}
.side-panel h3{font-size:22px;margin-top:0}
.two-col,.three-col,.card-row{display:grid;gap:18px}
.info-block{padding:24px}
.info-block.accent-block{background:linear-gradient(135deg,#fff,var(--brand-soft))}
.step-list{margin:18px 0;padding-left:22px;color:var(--muted)}
.step-list li{margin:10px 0}
.image-card{overflow:hidden}
.image-card img{
  width:100%;
  max-height:210px;
  object-fit:contain;
  background:linear-gradient(135deg,#fff,var(--brand-soft));
  padding:14px;
}
.image-card div{padding:20px}

.site-footer{
  background:var(--footer);
  color:var(--footer-text);
  padding:42px 0 24px;
}
.footer-grid{
  display:grid;
  gap:26px;
}
.footer-brand p{margin:16px 0 0;color:#cfcfcf;max-width:440px}
.footer-col{display:grid;gap:8px;align-content:start}
.footer-col h3{margin:0 0 8px;color:#fff}
.footer-col a{color:#d8d8d8}
.footer-col a:hover{color:var(--brand)}
.footer-note{
  border-top:1px solid rgba(255,255,255,.1);
  margin-top:26px;
  padding-top:18px;
  display:grid;
  gap:8px;
  color:#bdbdbd;
  font-size:14px;
}
.footer-note p{margin:0}

@media (min-width: 640px){
  .quick-links{grid-template-columns:repeat(4, minmax(0, 1fr))}
  .service-grid{grid-template-columns:repeat(2, minmax(0, 1fr))}
  .faq-grid{grid-template-columns:repeat(2, minmax(0, 1fr))}
  .three-col{grid-template-columns:repeat(3, minmax(0, 1fr))}
  .card-row{grid-template-columns:repeat(2, minmax(0, 1fr))}
}

@media (min-width: 900px){
  .section{padding:68px 0}
  .mobile-topbar{display:none}
  .desktop-header{
    height:76px;
    display:grid;
    grid-template-columns:150px 1fr auto;
    gap:24px;
    align-items:center;
  }
  .desktop-nav{
    display:flex;
    align-items:center;
    justify-content:center;
    gap:4px;
    flex-wrap:wrap;
  }
  .desktop-nav a{
    color:#252525;
    font-size:15px;
    font-weight:800;
    padding:9px 10px;
    border-radius:999px;
    transition:.2s ease;
  }
  .desktop-nav a.active,.desktop-nav a:hover{color:var(--brand);background:var(--brand-soft)}
  .header-action{justify-self:end}
  .hero-inner{
    grid-template-columns:.95fr 1.05fr;
    gap:42px;
    text-align:left;
    padding:64px 0 74px;
  }
  .hero-desc{margin-left:0;font-size:18px}
  .hero-tags{justify-content:flex-start}
  .hero-visual img{max-height:520px}
  .quick-links{
    grid-template-columns:repeat(4, minmax(0, 1fr));
    gap:16px;
    margin:-34px auto 0;
  }
  .featured-grid{
    grid-template-columns:1.25fr .85fr;
    grid-template-rows:auto auto;
  }
  .feature-large{grid-row:span 2;display:grid;grid-template-columns:.95fr 1.05fr}
  .feature-large .feature-media{min-height:100%}
  .feature-large .feature-media img{max-height:280px}
  .feature-card:not(.feature-large){display:grid;grid-template-columns:150px 1fr}
  .feature-card:not(.feature-large) .feature-media{min-height:100%;padding:10px}
  .feature-card:not(.feature-large) .feature-media img{max-height:126px}
  .dual-grid{grid-template-columns:repeat(2, minmax(0, 1fr))}
  .dual-card{display:grid;grid-template-columns:.9fr 1.1fr}
  .zone-grid{grid-template-columns:repeat(4, minmax(0, 1fr))}
  .zone-card.zone-wide{grid-column:span 2;grid-template-columns:.9fr 1.1fr;align-items:center}
  .zone-card.zone-wide img{max-height:190px;margin:0}
  .app-split{grid-template-columns:1.05fr .95fr}
  .service-grid{grid-template-columns:repeat(3, minmax(0, 1fr))}
  .page-hero{padding:64px 0}
  .page-hero-split{grid-template-columns:1fr .9fr}
  .content-layout{grid-template-columns:1.55fr .75fr}
  .two-col{grid-template-columns:repeat(2, minmax(0, 1fr))}
  .footer-grid{grid-template-columns:1.4fr repeat(3, 1fr)}
}

@media (min-width: 1180px){
  .quick-links{grid-template-columns:repeat(8, minmax(0, 1fr))}
  .quick-card{min-height:150px}
}

@media (max-width: 420px){
  .inner{width:min(100% - 24px, 1180px)}
  .mobile-topbar{grid-template-columns:42px 1fr 86px;padding:0 10px}
  .header-btn{font-size:12px;padding:8px 10px;min-width:78px}
  .mobile-logo img{height:30px;max-width:112px}
  .hero-inner{width:calc(100% - 24px);padding:42px 0 30px}
  .hero-title{font-size:34px}
  .hero-desc{font-size:15px}
  .quick-links{grid-template-columns:1fr 1fr;gap:10px}
  .quick-card{padding:12px;min-height:128px}
  .section{padding:46px 0}
  .feature-body,.dual-content,.prose-card,.info-block,.side-panel{padding:18px}
}