.sc { position: absolute; inset: 0; overflow-y: auto; scrollbar-width: none; overscroll-behavior: contain; }
.sc::-webkit-scrollbar { display: none; }
.mock-h { display: flex; align-items: center; gap: 22px; height: 64px; padding: 0 clamp(20px, 4cqw, 48px); font-size: 13px; font-weight: 500; }
.mock-h b { font-size: 17px; font-weight: 550; letter-spacing: -0.022em; margin-right: auto; }
.mock-hero { padding: 60px clamp(20px, 4cqw, 48px) 40px; }
.mock-hero h3 { margin: 0; font-size: clamp(40px, 7cqw, 86px); line-height: .94; letter-spacing: -0.022em; font-weight: 550; max-width: 11ch; }
.mock-hero p { margin: 18px 0 0; max-width: 42ch; font-size: 17px; opacity: .7; }
.mock-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; padding: 0 clamp(20px, 4cqw, 48px) 60px; }
.mock-grid i { display: block; height: 220px; border-radius: 12px; }
@container (max-width: 700px) { .mock-grid { grid-template-columns: 1fr 1fr; } .mock-grid i:nth-child(3) { display: none; } .mock-h span { display: none; } }

/* ── F4. Language and currency ───────────────────────── */
.f4 { height: 620px; background: var(--gray-0); color: var(--gray-800); }
.f4-page { height: 120px; background: linear-gradient(var(--gray-0), var(--gray-30)); }
.f4-foot { position: absolute; left: 0; right: 0; bottom: 0; top: 120px; background: var(--gray-30); border-top: 1px solid var(--gray-100); padding: 40px clamp(20px, 4cqw, 48px) 0; }
.f4-cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; font-size: 13px; }
.f4-cols p { margin: 0 0 12px; font-weight: 550; }
.f4-cols span { display: block; margin-bottom: 12px; color: var(--gray-800); }
.f4-bar { position: absolute; left: clamp(20px, 4cqw, 48px); right: clamp(20px, 4cqw, 48px); bottom: 0; height: 64px; display: flex; align-items: center; gap: 14px; border-top: 1px solid var(--gray-100); font-size: 13px; }
.f4-bar .r { margin-left: auto; display: flex; gap: 8px; }
.f4-bar button { display: flex; align-items: center; gap: 8px; border: 0; background: none; padding: 8px 10px; border-radius: 8px; font-size: 13px; font-weight: 550; color: var(--gray-800); cursor: default; }
.f4-bar button:is(:hover, [data-hover]) { background: var(--gray-60); }
.f4-bar svg { width: 16px; height: 16px; fill: none; stroke: var(--gray-800); stroke-width: 1.7; }
.f4-bar em { font-style: normal; transition: opacity .15s; }
.f4-veil { position: absolute; inset: 0; z-index: 20; background: color-mix(in srgb, var(--gray-900) 45%, transparent); opacity: 0; pointer-events: none; }
.f4-mod { position: absolute; left: 50%; top: 50%; z-index: 21; width: min(700px, calc(100cqw - 24px)); max-height: calc(100% - 40px); background: var(--gray-0); border-radius: 12px; box-shadow: var(--e3); opacity: 0; pointer-events: none; overflow: hidden; display: flex; flex-direction: column; }
.f4-x { position: absolute; left: 18px; top: 16px; width: 32px; height: 32px; border-radius: 50%; border: 0; background: none; cursor: default; display: grid; place-items: center; }
.f4-x:is(:hover, [data-hover]) { background: var(--gray-40); }
.f4-x svg { width: 14px; height: 14px; stroke: var(--gray-800); stroke-width: 2.2; fill: none; }
.f4-tabs { position: relative; display: flex; gap: 28px; padding: 64px 26px 0; border-bottom: 1px solid var(--gray-60); }
.f4-tabs button { border: 0; background: none; padding: 0 0 14px; font-size: 15px; font-weight: 550; color: var(--gray-500); cursor: default; }
.f4-tabs button[aria-selected="true"] { color: var(--gray-800); }
.f4-und { position: absolute; bottom: -1px; left: 0; height: 2px; background: var(--gray-800); }
.f4-body { position: relative; overflow-y: auto; padding: 22px 26px 26px; scrollbar-width: thin; }
.f4-set h6 { margin: 0 0 14px; font-size: 20px; font-weight: 550; }
.f4-opts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; }
.f4-opts button { text-align: left; border: 1px solid transparent; background: none; border-radius: 8px; padding: 10px 12px; font-size: 13px; color: var(--gray-800); cursor: default; }
.f4-opts button:is(:hover, [data-hover]) { background: var(--gray-30); }
.f4-opts button.on { border-color: var(--gray-800); }
.f4-opts small { display: block; color: var(--gray-500); font-size: 13px; margin-top: 1px; }
.f4-set { display: none; animation: f4in .28s ease; }
.f4-set.on { display: block; }
@keyframes f4in { from { opacity: 0; transform: translateY(4px); } }
@container (max-width: 700px) { .f4-opts { grid-template-columns: 1fr 1fr; } .f4-cols { grid-template-columns: 1fr 1fr; } .f4-cols > div:nth-child(3) { display: none; } .f4-bar .l { display: none; } }