.install-page { padding-bottom: env(safe-area-inset-bottom, 0); }
.install-wrap { width: min(100% - 40px, 1000px); margin: 0 auto; padding: 64px 0 40px; }
.install-intro { max-width: 720px; margin: 0 auto 44px; text-align: center; }
.install-intro .app-icon { width: 112px; height: 112px; margin: 0 auto 26px; border: 1px solid #dfd5c7; border-radius: 24px; box-shadow: 0 8px 20px #49230e0d; }
.install-eyebrow, .install-step { font: 700 12px/1.6 Arial,sans-serif; letter-spacing: 1.5px; }
.install-intro h1 { font-family: Georgia,serif; font-size: clamp(44px,7vw,76px); letter-spacing: -2px; line-height: 1.05; margin: 18px 0 24px; }
.install-page p, .install-page li { font-size: 17px; line-height: 1.7; }
.install-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin: 28px 0 18px; }
.install-actions .btn { font: 700 17px/1.4 Arial,sans-serif; min-height: 52px; }
.install-actions [hidden] { display: none !important; }
#install-status { font-size: 15px; color: #65503f; }
.install-guides { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.install-card { background: #fffdf8; border: 1px solid #dfd5c7; border-radius: 20px; padding: 30px; }
.install-card h2, .install-note h2 { font: 500 32px/1.2 Georgia,serif; letter-spacing: -1px; margin: 12px 0 24px; }
.install-card ol { padding-left: 22px; margin: 0; }
.install-card li { padding-left: 5px; margin-bottom: 18px; }
.install-card p { font-size: 15px; margin-bottom: 0; }
.install-note { margin-top: 28px; border-radius: 20px; padding: 30px; background: #d6f3f5; }
.install-note p:last-child { margin-bottom: 0; }
.install-footer { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px 36px; padding: 20px 24px 40px; }
.install-footer a { font-size: 16px; padding: 10px 0; text-decoration: underline; text-underline-offset: 5px; }
@media(max-width: 650px) { .install-wrap { padding-top: 36px; } .install-guides { grid-template-columns: 1fr; } .install-card, .install-note { padding: 24px; } .install-page p, .install-page li { font-size: 16px; } }