/* 共用分頁列：index.html（DISC 測驗）與 shipwreck.html（沈船逃生記）都 link 這支，兩頁長得一樣 */
.vtabs { position: sticky; top: 0; z-index: 50; background: #FAF6EE; border-bottom: 1px solid #E6DFD2; font-family: "Noto Sans TC", system-ui, sans-serif; }
.vtabs nav { max-width: 520px; margin: 0 auto; padding: 0 16px; display: flex; gap: 4px; }
.vtabs a { flex: 1; text-align: center; padding: 12px 4px 10px; font-size: 15px; font-weight: 700; color: #6B6872; text-decoration: none; border-bottom: 3px solid transparent; }
.vtabs a[aria-current="page"] { color: #1C1B22; border-bottom-color: #1C1B22; font-weight: 900; }