:root{--navy:#06162e;--navy2:#0a2145;--blue:#2468ff;--ink:#102248;--muted:#63708a;--line:#dbe5f4;--soft:#f4f7fc;--white:#fff;--shadow:0 18px 50px rgba(6,22,46,.12)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;color:var(--ink);background:var(--soft)}a{text-decoration:none;color:inherit}.container{width:min(1180px,calc(100% - 40px));margin:auto}header{background:#041124;color:#fff;position:sticky;top:0;z-index:30;border-bottom:1px solid rgba(255,255,255,.08)}.nav{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-weight:850}.back{font-size:13px;color:#cbd7ea}.hero{background:radial-gradient(circle at 80% 30%,rgba(36,104,255,.23),transparent 30%),linear-gradient(135deg,#041124,#0a2b5d);color:#fff;padding:56px 0}.hero-grid{display:grid;grid-template-columns:1fr 340px;gap:45px;align-items:center}.eyebrow{color:#71a4ff;font-size:12px;text-transform:uppercase;letter-spacing:.09em;font-weight:850}.hero h1{font-size:clamp(40px,5vw,58px);line-height:1.02;letter-spacing:-.04em;margin:12px 0 16px}.hero p{color:#c9d5e7;font-size:17px;line-height:1.65}.meta{display:flex;gap:18px;flex-wrap:wrap;margin-top:20px;font-size:12px;color:#dce6f4}.cover{background:#fff;border-radius:18px;padding:14px;text-align:center;box-shadow:0 22px 55px rgba(0,0,0,.25)}.cover img{display:block;width:100%;aspect-ratio:4/5;object-fit:contain;border-radius:9px}.layout{display:grid;grid-template-columns:250px 1fr;gap:30px;padding:45px 0 70px}.side{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;height:max-content;position:sticky;top:92px}.side h3{margin:0 0 16px;font-size:14px}.step{display:flex;gap:10px;align-items:center;padding:8px 0;color:var(--muted);font-size:12px}.step i{width:25px;height:25px;flex:0 0 25px;border-radius:50%;display:grid;place-items:center;background:#edf3ff;color:var(--blue);font-style:normal;font-weight:800}.step.active{color:var(--ink);font-weight:800}.step.active i{background:var(--blue);color:#fff}.content{display:grid;gap:22px}.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px}.card h2{font-size:27px;margin:0 0 12px}.card p{color:var(--muted);line-height:1.7}.takeaways{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.takeaway{padding:15px;border-radius:12px;background:#f7f9fd;font-size:13px}.takeaway:before{content:'✓';color:#16a05e;font-weight:900;margin-right:8px}.carousel{position:relative}.slide-view{background:#071a39;border-radius:18px;padding:22px;display:flex;justify-content:center;min-height:520px;align-items:center}.slide-view img{width:min(100%,620px);max-height:780px;object-fit:contain;border-radius:8px;box-shadow:0 12px 35px rgba(0,0,0,.28)}.carousel-controls{display:flex;justify-content:center;align-items:center;gap:14px;margin-top:16px}.circle-btn{border:1px solid var(--line);background:#fff;width:42px;height:42px;border-radius:50%;cursor:pointer;font-size:20px;color:var(--ink)}.circle-btn:hover{background:#edf3ff}.counter{font-size:13px;color:var(--muted);font-weight:750;min-width:95px;text-align:center}.thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:9px;margin-top:18px}.thumb{border:2px solid transparent;border-radius:9px;padding:3px;background:#eef2f8;cursor:pointer}.thumb.active{border-color:var(--blue);background:#fff}.thumb img{display:block;width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:5px}.actions{display:grid;grid-template-columns:1fr 1fr;gap:16px}.action{padding:20px;border:1px solid var(--line);border-radius:15px;background:#fff}.action b{display:block;margin-bottom:7px}.action p{font-size:13px;margin:0 0 14px}.btn{display:inline-flex;padding:12px 17px;background:var(--blue);color:#fff;border-radius:8px;font-weight:800;font-size:13px}.btn.secondary{background:#eef3ff;color:#1852c2}.bottom-nav{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:18px 0;font-size:13px}.bottom-nav a{color:var(--blue);font-weight:850}.disabled{color:#9aa6b8}footer{background:#041124;color:#aebbd0;padding:26px 0;font-size:12px}.footer-row{display:flex;justify-content:space-between;gap:20px}.footer-row strong{color:#fff}@media(max-width:850px){.hero-grid,.layout{grid-template-columns:1fr}.side{position:static}.cover{max-width:380px}.actions,.takeaways{grid-template-columns:1fr}.thumbs{grid-template-columns:repeat(5,1fr)}}@media(max-width:560px){.container{width:calc(100% - 28px)}.hero h1{font-size:39px}.hero{padding:42px 0}.card{padding:20px}.slide-view{min-height:360px;padding:12px}.thumbs{grid-template-columns:repeat(5,1fr);gap:5px}.bottom-nav{align-items:flex-start;flex-direction:column}.footer-row{flex-direction:column}}

/* Fullscreen slide zoom viewer */
.slide-view{position:relative;overflow:hidden}.zoomable-slide{cursor:zoom-in;touch-action:manipulation}.zoomable-slide:focus-visible{outline:3px solid #71a4ff;outline-offset:4px}.zoom-hint{position:absolute;right:34px;bottom:34px;border:1px solid rgba(255,255,255,.28);background:rgba(4,17,36,.82);color:#fff;border-radius:999px;padding:9px 13px;font:inherit;font-size:12px;font-weight:800;cursor:pointer;backdrop-filter:blur(8px);box-shadow:0 8px 22px rgba(0,0,0,.25)}.zoom-hint:hover{background:#0d3d82}.zoom-hint span{font-size:17px;vertical-align:-1px;margin-right:4px}.viewer-open{overflow:hidden}.slide-viewer{position:fixed;inset:0;z-index:9999;display:none;background:rgba(1,7,18,.97);color:#fff}.slide-viewer.open{display:block}.viewer-toolbar{position:absolute;top:0;left:0;right:0;z-index:3;min-height:64px;padding:10px max(14px,env(safe-area-inset-right)) 10px max(14px,env(safe-area-inset-left));display:flex;align-items:center;justify-content:space-between;gap:16px;background:linear-gradient(to bottom,rgba(0,0,0,.72),transparent)}.viewer-counter{font-size:13px;font-weight:800}.viewer-toolbar-actions{display:flex;gap:8px;align-items:center}.viewer-tool,.viewer-close{border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.1);color:#fff;height:42px;min-width:42px;border-radius:10px;font-size:20px;font-weight:800;cursor:pointer}.viewer-tool[data-action="reset"]{min-width:62px;font-size:12px}.viewer-close{font-size:28px}.viewer-tool:hover,.viewer-close:hover{background:rgba(255,255,255,.2)}.viewer-stage{position:absolute;inset:0;display:grid;place-items:center;overflow:hidden;touch-action:none;user-select:none}.viewer-stage.is-zoomed{cursor:grab}.viewer-stage.is-zoomed:active{cursor:grabbing}.viewer-image{display:block;max-width:calc(100vw - 100px);max-height:calc(100vh - 110px);width:auto;height:auto;object-fit:contain;transform-origin:center center;will-change:transform;transition:transform .08s linear;box-shadow:0 18px 60px rgba(0,0,0,.45)}.viewer-nav{position:absolute;top:50%;z-index:3;transform:translateY(-50%);width:52px;height:52px;border-radius:50%;border:1px solid rgba(255,255,255,.25);background:rgba(0,0,0,.5);color:#fff;font-size:26px;cursor:pointer}.viewer-prev{left:18px}.viewer-next{right:18px}.viewer-nav:hover{background:rgba(36,104,255,.85)}.viewer-help{position:absolute;left:50%;bottom:max(16px,env(safe-area-inset-bottom));z-index:3;transform:translateX(-50%);white-space:nowrap;padding:8px 12px;border-radius:999px;background:rgba(0,0,0,.54);font-size:11px;color:#dce6f4;pointer-events:none}
@media(max-width:560px){.slide-view{min-height:0;padding:6px;border-radius:12px}.slide-view img{width:100%;max-height:none;border-radius:6px}.zoom-hint{right:14px;bottom:14px;padding:8px 11px}.viewer-image{max-width:100vw;max-height:calc(100vh - 88px);box-shadow:none}.viewer-nav{top:auto;bottom:max(58px,calc(env(safe-area-inset-bottom) + 52px));width:46px;height:46px}.viewer-prev{left:14px}.viewer-next{right:14px}.viewer-help{bottom:max(10px,env(safe-area-inset-bottom));font-size:10px}.viewer-toolbar{padding-top:max(10px,env(safe-area-inset-top))}.thumbs{overflow-x:auto;display:flex;padding-bottom:6px;scroll-snap-type:x proximity}.thumb{flex:0 0 72px;scroll-snap-align:start}}
@media(prefers-reduced-motion:reduce){.viewer-image{transition:none}}

/* Mobile Safari and Android fullscreen reliability */
.slide-viewer{height:var(--viewer-height,100dvh);min-height:100%;overscroll-behavior:none;-webkit-overflow-scrolling:touch}
.viewer-stage{-webkit-user-select:none;-webkit-touch-callout:none}
.viewer-image{-webkit-user-drag:none;-webkit-touch-callout:none}
.viewer-open{position:fixed;width:100%;height:100%;overflow:hidden;touch-action:none}
@supports(height:100dvh){.slide-viewer{height:100dvh}}
@media(max-width:560px){
  .slide-viewer{inset:0;width:100vw;height:var(--viewer-height,100dvh)}
  .viewer-stage{top:max(58px,env(safe-area-inset-top));bottom:max(58px,env(safe-area-inset-bottom));height:auto}
  .viewer-image{max-width:100%;max-height:100%;width:auto;height:auto}
  .viewer-toolbar{background:rgba(1,7,18,.88);padding-bottom:8px}
  .viewer-help{display:none}
  .viewer-nav{bottom:max(10px,env(safe-area-inset-bottom));z-index:5}
}

/* Mobile-safe slide viewer v4 */
html.viewer-open,body.viewer-open{overflow:hidden!important;height:100%!important}
.slide-viewer{position:fixed!important;inset:0!important;width:100%!important;height:100dvh!important;z-index:99999!important;display:none;background:#010712;color:#fff}
.slide-viewer.open{display:block!important}
.viewer-stage{position:absolute!important;inset:64px 0 0!important;overflow:auto!important;display:block!important;touch-action:pan-x pan-y pinch-zoom!important;-webkit-overflow-scrolling:touch!important;overscroll-behavior:contain;background:#010712;padding:18px}
.viewer-canvas{width:100%;min-height:100%;display:flex;align-items:center;justify-content:center;margin:auto;transition:width .16s ease}
.viewer-image{display:block!important;width:100%!important;height:auto!important;max-width:none!important;max-height:none!important;object-fit:contain!important;transform:none!important;box-shadow:0 12px 45px rgba(0,0,0,.45)}
.viewer-stage:not(.is-zoomed) .viewer-canvas{width:100%!important}
.viewer-stage:not(.is-zoomed) .viewer-image{max-width:1100px!important;max-height:calc(100dvh - 110px)!important;width:auto!important}
.viewer-original{display:inline-grid!important;place-items:center;text-decoration:none}
@media(max-width:600px){
  .viewer-toolbar{min-height:58px!important;padding:max(8px,env(safe-area-inset-top)) 8px 8px!important;background:#071224!important;gap:6px!important}
  .viewer-counter{font-size:11px!important;max-width:90px}
  .viewer-toolbar-actions{gap:5px!important}
  .viewer-tool,.viewer-close{height:40px!important;min-width:40px!important;border-radius:9px!important}
  .viewer-tool[data-action="reset"]{min-width:54px!important}
  .viewer-stage{inset:max(58px,calc(48px + env(safe-area-inset-top))) 0 0!important;padding:8px 8px calc(72px + env(safe-area-inset-bottom))!important}
  .viewer-stage:not(.is-zoomed) .viewer-image{width:100%!important;height:auto!important;max-width:100%!important;max-height:none!important}
  .viewer-nav{top:auto!important;bottom:max(12px,env(safe-area-inset-bottom))!important;width:48px!important;height:48px!important;z-index:7!important}
  .viewer-prev{left:14px!important}.viewer-next{right:14px!important}
  .viewer-help{bottom:max(20px,calc(env(safe-area-inset-bottom) + 12px))!important;font-size:10px!important;max-width:55%;white-space:normal!important;text-align:center}
  .zoom-hint{font-size:13px!important;min-height:42px!important;padding:10px 14px!important}
}

/* Mobile layout repair v5 */
html,body{width:100%;max-width:100%;overflow-x:hidden}
header,.hero,main,footer{width:100%;max-width:none}
.open-fullscreen-btn{display:none;width:100%;margin:12px 0 0;border:0;border-radius:12px;padding:14px 16px;background:#2468ff;color:#fff;font:inherit;font-size:15px;font-weight:850;cursor:pointer;align-items:center;justify-content:center;gap:8px}
@media(max-width:850px){
  .container{width:100%;max-width:none;margin:0;padding-left:16px;padding-right:16px}
  .nav{height:auto;min-height:68px;padding-top:12px;padding-bottom:12px;align-items:flex-start;flex-wrap:wrap}
  .nav>div{display:flex!important;gap:10px!important;align-items:center!important;flex-wrap:wrap;width:100%}
  .brand{width:100%;font-size:15px;line-height:1.25}
  .back{font-size:13px;line-height:1.35;padding:5px 0}
  .hero{padding:34px 0}
  .hero-grid{width:100%;grid-template-columns:1fr;gap:26px}
  .hero h1{font-size:clamp(34px,10vw,46px);max-width:100%}
  .hero p{font-size:16px;max-width:100%}
  .cover{width:100%;max-width:520px;margin:0 auto;padding:10px}
  .cover img{width:100%;height:auto;aspect-ratio:auto}
  .layout{width:100%;grid-template-columns:1fr;padding-top:24px;gap:20px}
  .side,.content,.card,.carousel{width:100%;min-width:0;max-width:100%}
  .slide-view{width:100%;min-height:0;padding:6px;border-radius:12px}
  .slide-view img{display:block;width:100%;max-width:100%;height:auto;max-height:none;object-fit:contain}
  .open-fullscreen-btn{display:flex}
}
@media(max-width:560px){
  .container{width:100%;padding-left:12px;padding-right:12px}
  .card{padding:16px;border-radius:15px}
  .card h2{font-size:25px}
  .carousel{padding-left:8px;padding-right:8px}
  .slide-view{margin-left:0;margin-right:0}
  .zoom-hint{display:none}
  .carousel-controls{margin-top:12px}
  .circle-btn{width:46px;height:46px}
  .thumbs{margin-left:0;margin-right:0}
}