/* Four-item navigation; leave the business footer fully visible. */
body{padding-bottom:calc(84px + env(safe-area-inset-bottom,0px))}
html{scroll-padding-bottom:calc(96px + env(safe-area-inset-bottom,0px))}
.guide-bottom-nav{position:fixed;z-index:90;left:50%;bottom:0;transform:translateX(-50%);width:100%;max-width:560px;box-sizing:border-box;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:5px;padding:6px 10px calc(6px + env(safe-area-inset-bottom,0px));background:rgba(255,255,255,.98);border:1px solid #dce3ec;border-bottom:0;border-radius:20px 20px 0 0;box-shadow:0 -7px 28px #192f4d12;color:#142943}
.guide-bottom-nav a,.guide-bottom-nav button{display:flex;min-width:0;min-height:54px;box-sizing:border-box;align-items:center;justify-content:center;gap:5px;flex-direction:column;padding:5px 0;border:0;border-radius:11px;background:transparent;font-family:inherit;font-size:13px;font-weight:700;line-height:1.2;letter-spacing:-.3px;white-space:nowrap;text-decoration:none;color:#46586d;cursor:pointer;-webkit-tap-highlight-color:transparent}
.guide-bottom-nav svg,.guide-product-sheet svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:none}
.guide-bottom-nav a:hover,.guide-bottom-nav button:hover{background:#edf2f8;color:#173d6c}
.guide-bottom-nav [aria-current="true"]{background:linear-gradient(145deg,#183d66,#142943);color:#fff;border-top:1px solid #b6a383;box-shadow:0 3px 8px #183d6620}
.guide-bottom-nav [aria-current="true"]:hover{background:#1c3657;color:#fff}
.guide-bottom-nav [aria-current="true"] svg{color:#e4d6b6}
.guide-bottom-nav :focus-visible,.guide-product-sheet :focus-visible{outline:3px solid #b4935b;outline-offset:2px}
.guide-product-sheet{position:fixed;inset:auto 0 0;margin:0 auto;width:min(100%,560px);max-width:100%;box-sizing:border-box;max-height:85vh;max-height:85dvh;overflow:auto;border:0;border-radius:24px 24px 0 0;padding:24px 22px calc(24px + env(safe-area-inset-bottom,0px));background:#fff;color:#142943;box-shadow:0 -10px 60px #142a4a20;font-family:inherit}
.guide-product-sheet::backdrop{background:#12253f66}
.guide-product-sheet h2{font-size:22px;line-height:1.4;margin:0 42px 8px 0}
.guide-product-sheet p{font-size:15px;line-height:1.55;color:#46586d;margin:0 0 18px}
.guide-product-sheet .guide-close{position:absolute;right:18px;top:18px;width:36px;height:36px;border:0;border-radius:50%;display:grid;place-items:center;background:#edf2f8;color:#142943;cursor:pointer}
.guide-product-sheet .guide-product-link{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:10px;padding:18px 16px;border:1px solid #dfe7ef;background:#f6f8fb;border-radius:13px;color:#173d6c;text-decoration:none;font-size:17px;font-weight:700}
.guide-product-link small{display:block;font-weight:400;font-size:14px;color:#46586d;margin-top:5px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Short navigation separators */
.guide-bottom-nav > a,.guide-bottom-nav > button{position:relative}
.guide-bottom-nav > :not(:last-child)::after{content:"";position:absolute;right:-3px;top:50%;transform:translateY(-50%);width:1px;height:22px;background:#99a8ba;pointer-events:none}