.demo-page { padding: 50px 0 72px; }
.demo-inner { max-width: 1176px; margin: auto; padding: 0 32px; }
.demo-heading { margin-bottom: 54px; text-align: center; }
.demo-heading h1 { margin: 0 0 18px; font-size: 42px; font-weight: 650; line-height: 1.4; }
.demo-heading p { margin: 0; color: #657080; font-size: 18px; line-height: 1.7; }
.demo-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
.demo-card { display: flex; flex-direction: column; overflow: hidden; border: 1px solid #dfe6ee; border-radius: 12px; background: #fff; }
.demo-media { display: grid; place-items: center; height: 260px; padding: 28px; background: #eef7f3; }
.demo-media--web { padding: 22px; background: #eaf1fb; }
.demo-media--web img { display: block; width: 100%; height: auto; max-height: 210px; object-fit: contain; box-shadow: 0 8px 20px #627ca126; }
.demo-card--app .demo-media { background: #f1eef9; }
.demo-qr { display: block; width: 200px; height: 200px; object-fit: contain; background: #fff; }
.demo-card-body { display: flex; flex: 1; flex-direction: column; padding: 26px 26px 28px; }
.demo-card h2 { display: flex; align-items: center; gap: 10px; margin: 0 0 10px; font-size: 23px; font-weight: 600; line-height: 1.4; }
.demo-card h2 svg { flex: none; width: 23px; height: 23px; color: #599fd2; }
.demo-card--h5 h2 svg { color: #5a9c88; }
.demo-card--app h2 svg { color: #8d80bb; }
.demo-description { margin: 0 0 26px; color: #707986; font-size: 14px; line-height: 1.7; }
.demo-action { display: flex; align-items: center; justify-content: center; gap: 12px; min-height: 46px; margin-top: auto; padding: 10px 16px; border: 1px solid #469fec; border-radius: 6px; background: #469fec; color: #fff; font-size: 15px; line-height: 1.6; transition: background .2s ease; }
.demo-action svg { flex: none; width: 17px; height: 17px; }
.demo-action:hover { background: #278bdc; }
.demo-action--secondary { background: #fff; color: #268ad7; border-color: #d2e2ee; }
.demo-action--secondary:hover { background: #f1f8fd; }
.demo-support { display: grid; grid-template-columns: auto 1fr; gap: 42px; align-items: center; margin-top: 38px; padding: 28px 0 0; border-top: 1px solid #e6ebf0; }
.demo-accounts { min-width: 290px; }
.demo-accounts h2 { margin: 0 0 16px; font-size: 16px; font-weight: 600; }
.demo-accounts dl { display: flex; flex-wrap: wrap; gap: 14px 24px; margin: 0; font-size: 14px; line-height: 1.8; }
.demo-accounts dl > div { display: flex; align-items: baseline; gap: 10px; }
.demo-accounts dt { color: #737d8c; }
.demo-accounts dd { display: flex; gap: 10px; margin: 0; }
.demo-accounts dd span { color: #737d8c; }
.demo-accounts code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 14px; }
.demo-platform-note { padding-left: 32px; border-left: 1px solid #e6ebf0; }
.demo-platform-note p { margin: 0; color: #737d8c; font-size: 13px; line-height: 1.9; }
.demo-platform-note p + p { margin-top: 6px; }
@media (max-width: 1050px) {
    .demo-grid { gap: 20px; }
    .demo-card-body { padding: 24px 20px; }
    .demo-card h2 { font-size: 20px; }
    .demo-support { gap: 24px; }
}
@media (max-width: 900px) {
    .demo-grid { grid-template-columns: 1fr; max-width: 480px; margin: auto; gap: 24px; }
    .demo-support { grid-template-columns: 1fr; max-width: 480px; margin: 32px auto 0; gap: 22px; }
    .demo-platform-note { padding: 0; border: 0; }
    .demo-card-body { padding: 26px; }
}
@media (max-width: 640px) {
    .demo-page { padding: 36px 0 48px; }
    .demo-inner { padding: 0 20px; }
    .demo-heading { margin-bottom: 32px; }
    .demo-heading h1 { font-size: 30px; }
    .demo-heading p { font-size: 15px; }
    .demo-media { height: 244px; padding: 22px; }
    .demo-card h2 { font-size: 22px; }
    .demo-accounts { min-width: 0; }
}