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@media(max-width:380px){.catalog{grid-template-columns:1fr}.catalog .cover{aspect-ratio:4/3}.topic-grid{gap:10px}.topic-grid>a{padding:14px}.search-box{flex-wrap:wrap}.search-box button{width:100%}.hero h1{font-size:36px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}

/* Bài không có mục lục: chỉ giữ cột nội dung chính, không chừa khoảng trống bên trái. */
.article-layout--single{grid-template-columns:minmax(0,760px)}

.feedback-form{display:grid;gap:20px}.small{font-size:12px}