:root{
  --store-blue:#0877ed;
  --store-blue-dark:#0654b8;
  --store-navy:#0b2450;
  --store-muted:#5c6f8e;
  --store-line:#d9e8f8;
  --store-soft:#f4f9ff;
  --store-green:#0cab77;
  --store-radius:24px;
  --store-shadow:0 24px 60px rgba(25,91,164,.14),0 8px 18px rgba(17,67,126,.08),inset 0 1px 0 #fff;
  --store-shadow-hover:0 34px 78px rgba(25,91,164,.2),0 12px 24px rgba(17,67,126,.12),inset 0 1px 0 #fff;
}

html{scroll-behavior:smooth;background:#fff}
body{background:linear-gradient(180deg,#fff 0,#f7fbff 42%,#fff 100%);color:var(--store-navy);font-family:Inter,"Segoe UI",Roboto,Arial,sans-serif;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(circle at 8% 20%,rgba(44,153,255,.09),transparent 25%),radial-gradient(circle at 92% 58%,rgba(65,180,255,.08),transparent 26%)}

.topbar{position:sticky;top:0;z-index:50;min-height:76px;padding:10px clamp(20px,5vw,72px);background:rgba(255,255,255,.9);border-bottom:1px solid rgba(174,205,237,.65);box-shadow:0 10px 35px rgba(14,74,139,.07);backdrop-filter:blur(18px) saturate(150%)}
.brand img,.footer-brand img{border-radius:13px;box-shadow:0 9px 18px rgba(0,99,221,.24),inset 0 1px 0 rgba(255,255,255,.8)}
.brand strong{font-size:1.12rem;letter-spacing:-.02em;color:var(--store-navy)}
.brand small{color:var(--store-muted)}
.search{height:46px;border:1px solid #cfe1f5;background:linear-gradient(180deg,#fff,#f3f8fe);border-radius:14px;box-shadow:inset 0 2px 5px rgba(16,70,130,.05),0 7px 16px rgba(29,101,177,.06);transition:border-color .2s,box-shadow .2s,transform .2s}
.search:focus-within{border-color:#5daaff;box-shadow:0 0 0 4px rgba(8,119,237,.12),0 12px 25px rgba(29,101,177,.1);transform:translateY(-1px)}
.search input{font:600 15px/1.3 Inter,"Segoe UI",sans-serif;color:var(--store-navy)}
.topbar nav a{position:relative;color:#24466f;font-weight:700;padding:12px 4px}
.topbar nav a::after{content:"";position:absolute;left:50%;right:50%;bottom:5px;height:3px;border-radius:4px;background:var(--store-blue);transition:left .22s,right .22s}
.topbar nav a:hover::after,.topbar nav a.active::after{left:4px;right:4px}

main{width:min(1180px,calc(100% - 36px));margin:0 auto;padding:0 0 76px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:30px}
main>.intro,main>.empty,main>.app-detail:not(.compact),main>.security-panel,main>.install-guide{grid-column:1/-1}
.intro{position:relative;min-height:410px;margin:0 calc(50% - 50vw) 12px;padding:clamp(64px,8vw,116px) max(calc((100vw - 1180px)/2),24px);display:flex;align-items:center;overflow:hidden;background:linear-gradient(116deg,#fff 16%,#f5faff 58%,#eaf5ff 100%)}
.intro::after{content:"";position:absolute;width:420px;height:420px;right:4%;top:0;border-radius:50%;border:1px solid rgba(74,158,255,.15);box-shadow:0 0 0 70px rgba(68,154,255,.045),0 0 0 140px rgba(68,154,255,.025)}
.intro-copy{position:relative;z-index:2;width:min(610px,54%)}
.intro h1{margin:0 0 18px;color:#09245c;font-size:clamp(2.55rem,5vw,4.65rem);line-height:.98;letter-spacing:-.055em;text-wrap:balance}
.intro p{margin:0;color:#60769b;font-size:clamp(1.05rem,1.7vw,1.35rem);font-weight:650;letter-spacing:.005em}
.intro-visual{position:absolute;z-index:1;right:max(calc((100vw - 1250px)/2),-90px);top:50%;width:min(700px,53vw);height:auto;transform:translateY(-50%);filter:drop-shadow(0 28px 32px rgba(27,105,186,.12));animation:heroFloat 6s ease-in-out infinite}

.app-detail,.security-panel,.install-guide{position:relative;border:1px solid rgba(193,219,244,.85);background:rgba(255,255,255,.94);border-radius:var(--store-radius);box-shadow:var(--store-shadow);transform-style:preserve-3d;transition:transform .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s,border-color .35s}
.app-detail::before,.security-panel::before,.install-guide::before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;background:linear-gradient(135deg,rgba(255,255,255,.85),transparent 35%,rgba(24,133,245,.035));mix-blend-mode:screen}
.app-detail:hover,.security-panel:hover,.install-guide:hover{transform:translateY(-7px);box-shadow:var(--store-shadow-hover);border-color:#aad4fc}
.app-detail{padding:clamp(24px,4vw,42px)}
.app-detail:not(.compact){margin-top:-50px;z-index:3}
.app-summary{align-items:center;gap:clamp(18px,3vw,34px)}
.app-icon{border-radius:28%;box-shadow:0 22px 34px rgba(10,99,205,.22),0 6px 10px rgba(19,72,130,.12),inset 0 2px 1px rgba(255,255,255,.8);transition:transform .4s cubic-bezier(.2,.8,.2,1),filter .4s}
.app-detail:hover .app-icon{transform:translateY(-5px) rotate(-2deg) scale(1.035);filter:saturate(1.08)}
.app-title h2{font-size:clamp(1.55rem,2.5vw,2.2rem);line-height:1.08;letter-spacing:-.035em;color:var(--store-navy)}
.app-title a{color:var(--store-blue);font-weight:800}
.app-title small{color:var(--store-muted);line-height:1.5}
.facts{border:1px solid #dbe9f7;border-radius:16px;background:linear-gradient(180deg,#f9fcff,#f0f7ff);box-shadow:inset 0 1px 0 #fff,0 9px 18px rgba(30,93,160,.06)}
.facts div+div{border-left-color:#d9e7f5}
.facts dt{color:#6b7f9b;font-weight:700}
.facts dd{color:#102d5d;font-weight:850}

.install-button{position:relative;isolation:isolate;min-height:56px;border:1px solid #0873dd;border-radius:15px;color:#fff!important;font-weight:850;font-size:1rem;letter-spacing:.005em;background:linear-gradient(180deg,#1798ff 0,#0874e8 48%,#0759bd 100%);box-shadow:0 15px 26px rgba(2,103,220,.28),0 5px 0 #064b9a,inset 0 2px 0 rgba(255,255,255,.42);overflow:hidden;transition:transform .18s,box-shadow .18s,filter .18s}
.install-button::after{content:"";position:absolute;z-index:-1;top:-120%;left:-35%;width:24%;height:340%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.62),transparent);transform:rotate(22deg);animation:buttonShine 4.8s ease-in-out infinite}
.install-button:hover{transform:translateY(-3px);filter:saturate(1.08);box-shadow:0 20px 34px rgba(2,103,220,.32),0 6px 0 #064b9a,inset 0 2px 0 rgba(255,255,255,.48)}
.install-button:active{transform:translateY(3px);box-shadow:0 7px 14px rgba(2,103,220,.22),0 2px 0 #064b9a,inset 0 1px 0 rgba(255,255,255,.4)}
.qr{border:1px solid #cfe3f7;border-radius:18px;background:linear-gradient(150deg,#fff,#f0f8ff);box-shadow:0 15px 28px rgba(28,103,181,.1),inset 0 1px 0 #fff}
.qr img{border-radius:12px;box-shadow:0 8px 20px rgba(21,76,133,.12)}
.tabs{border-bottom-color:#dce9f6}
.tabs button{font:800 14px/1.2 Inter,"Segoe UI",sans-serif;color:#466385;transition:color .2s,background .2s,transform .2s}
.tabs button:hover{color:var(--store-blue);transform:translateY(-1px)}
.tabs button.selected{color:#086bdb}
.tab-panel{color:#4d6686;line-height:1.65}
.feature-list li::before{background:linear-gradient(180deg,#20c68a,#079b69);box-shadow:0 5px 12px rgba(12,171,119,.2)}

.security-panel{padding:clamp(26px,4vw,42px);background:linear-gradient(135deg,#f8fcff,#eaf5ff)}
.security-panel h2,.install-guide h2{font-size:clamp(1.7rem,3vw,2.45rem);letter-spacing:-.04em;color:var(--store-navy)}
.security-grid{gap:14px}
.security-grid>div{min-height:94px;border:1px solid rgba(202,224,245,.9);border-radius:17px;background:rgba(255,255,255,.88);box-shadow:0 12px 24px rgba(26,90,155,.08),inset 0 1px 0 #fff;transition:transform .25s,box-shadow .25s}
.security-grid>div:hover{transform:translateY(-4px);box-shadow:0 18px 30px rgba(26,90,155,.13),inset 0 1px 0 #fff}
.security-grid>div>span{background:linear-gradient(180deg,#23cb90,#079d6d);box-shadow:0 8px 15px rgba(12,171,119,.24),inset 0 1px 0 rgba(255,255,255,.6)}
.security-panel details{border-top-color:#d7e8f7}

.app-detail.compact{margin:0;min-width:0;padding:30px}
.app-detail.compact .app-summary{display:grid;grid-template-columns:92px minmax(0,1fr);align-items:center}
.app-detail.compact .app-icon{width:92px;height:92px;grid-row:1/3}
.app-detail.compact .facts,.app-detail.compact .install-button{grid-column:1/-1;width:100%}
.app-detail.compact .staff-note{margin-top:24px;border-top:1px solid #dbe8f5;padding-top:20px}
.staff-note button,.copy{border:1px solid #bddaf7;border-radius:12px;background:linear-gradient(180deg,#fff,#edf6ff);color:#075fbf;font-weight:800;box-shadow:0 8px 16px rgba(20,84,151,.08),inset 0 1px 0 #fff;transition:transform .2s,box-shadow .2s}
.staff-note button:hover,.copy:hover{transform:translateY(-2px);box-shadow:0 12px 22px rgba(20,84,151,.13),inset 0 1px 0 #fff}

.install-guide{grid-column:1/-1;padding:clamp(28px,4vw,44px)}
.install-guide ol{gap:16px}
.install-guide li{position:relative;border:1px solid #d6e6f6;border-radius:18px;background:linear-gradient(145deg,#fff,#f4f9ff);box-shadow:0 13px 25px rgba(28,93,159,.08),inset 0 1px 0 #fff;transition:transform .28s,box-shadow .28s}
.install-guide li:hover{transform:translateY(-5px) rotateX(2deg);box-shadow:0 20px 36px rgba(28,93,159,.14),inset 0 1px 0 #fff}
.install-guide li>span{background:linear-gradient(180deg,#239eff,#0873e4);color:#fff;box-shadow:0 8px 16px rgba(8,115,228,.24),inset 0 1px 0 rgba(255,255,255,.5)}

footer{border-top:1px solid #d8e7f6;background:rgba(255,255,255,.92);box-shadow:0 -12px 35px rgba(20,80,145,.05)}
.footer-brand b{color:var(--store-navy)}

.motion-ready .app-detail,.motion-ready .security-panel,.motion-ready .install-guide{opacity:0;transform:translateY(34px) scale(.985)}
.motion-ready .is-visible{opacity:1;transform:translateY(0) scale(1);transition:opacity .72s ease,transform .72s cubic-bezier(.2,.75,.2,1),box-shadow .35s,border-color .35s}

@keyframes heroFloat{0%,100%{transform:translateY(-50%) rotate(.2deg)}50%{transform:translateY(calc(-50% - 10px)) rotate(-.6deg)}}
@keyframes buttonShine{0%,66%{left:-38%;opacity:0}72%{opacity:1}90%,100%{left:128%;opacity:0}}

@media(max-width:900px){
  main{grid-template-columns:1fr;width:min(720px,calc(100% - 24px));gap:22px}
  main>*{grid-column:1!important}
  .intro{min-height:360px;padding-top:64px;padding-bottom:76px}
  .intro-copy{width:62%}
  .intro-visual{right:-155px;width:610px;opacity:.86}
  .app-detail:not(.compact){margin-top:-44px}
  .app-detail.compact{grid-column:1}
}

@media(max-width:620px){
  .topbar{min-height:64px;padding:8px 14px}
  .brand strong{font-size:1rem}
  .brand small{font-size:.69rem}
  .intro{min-height:420px;align-items:flex-start;padding:58px 22px 0}
  .intro-copy{width:100%;text-align:center}
  .intro h1{font-size:clamp(2.25rem,11vw,3.1rem)}
  .intro p{font-size:1rem}
  .intro-visual{top:auto;bottom:-8px;right:50%;width:500px;max-width:none;transform:translateX(58%);opacity:.68;animation:mobileHeroFloat 6s ease-in-out infinite}
  .app-detail,.security-panel,.install-guide{border-radius:20px}
  .app-detail{padding:22px 18px}
  .app-detail:not(.compact){margin-top:-34px}
  .app-summary{gap:16px}
  .app-icon{border-radius:24%}
  .install-button{min-height:54px}
  .tabs{overflow-x:auto;scrollbar-width:none}
  .tabs button{white-space:nowrap;min-width:max-content}
  .security-grid{grid-template-columns:1fr 1fr}
  .security-grid>div{min-height:112px;align-items:flex-start}
  .app-detail.compact{padding:22px 18px}
  .app-detail.compact .app-summary{grid-template-columns:76px minmax(0,1fr)}
  .app-detail.compact .app-icon{width:76px;height:76px}
  .staff-note{align-items:flex-start;gap:12px}
  .staff-note button{flex:0 0 auto}
  .install-guide{padding:25px 18px}
}

@keyframes mobileHeroFloat{0%,100%{transform:translateX(58%) translateY(0)}50%{transform:translateX(58%) translateY(-7px)}}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .motion-ready .app-detail,.motion-ready .security-panel,.motion-ready .install-guide{opacity:1;transform:none}
}