.kn-comm { background: var(--kn-bg, #f6f9fc); min-height: 60vh; }
.kn-comm .kn-container { max-width: var(--kn-maxw, 1080px); margin-inline: auto; padding-inline: 24px; }

.kn-comm-sr {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.kn-comm-stats {
    display: inline-flex; align-items: center; gap: .7rem; flex-wrap: wrap;
    justify-content: center; margin-top: 1.6rem; font-size: 1rem; color: var(--kn-muted, #647491);
}
.kn-comm-stat-item strong { color: var(--kn-title, #0a2540); font-weight: 800; font-size: 1.15rem; margin-inline-end: .2rem; }
.kn-comm-stat-sep { opacity: .45; }

.kn-comm-toolbar {
    display: flex; justify-content: space-between; align-items: center; gap: 1rem;
    flex-wrap: wrap; padding-block: 2rem 1.25rem;
}
.kn-comm-search {
    display: flex; align-items: center; gap: .55rem; background: var(--kn-surface, #fff);
    border: 1px solid var(--kn-border, #e3e8ee); border-radius: 999px;
    padding-inline: 1rem; padding-block: 0; min-width: 240px; flex: 1 1 260px; max-width: 420px;
    height: 44px; transition: border-color .15s ease, box-shadow .15s ease;
}
.kn-comm-search:focus-within { border-color: var(--kn-blue, #2563eb); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.kn-comm-search i { color: var(--kn-muted, #647491); font-size: .95rem; }
.kn-comm-search input {
    border: none; outline: none; background: transparent; flex: 1;
    font: inherit; font-size: .95rem; color: var(--kn-title, #0a2540); min-width: 0;
}
.kn-comm-toolbar-actions { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; }

.kn-comm-chips { display: flex; flex-wrap: wrap; gap: .5rem; padding-block-end: 1.6rem; }
.kn-comm-count {
    display: inline-block; opacity: .7; font-weight: 700; margin-inline-start: .4rem;
    font-size: .8em;
}

.kn-comm-list { display: flex; flex-direction: column; gap: .9rem; }

.kn-comm-card {
    display: flex; align-items: stretch; gap: 1.25rem;
    background: var(--kn-surface, #fff); border: 1px solid var(--kn-border, #e3e8ee);
    border-radius: var(--kn-radius, 14px); padding: 1.15rem 1.35rem; text-decoration: none; color: inherit;
    transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
    box-shadow: 0 1px 2px rgba(10,37,64,.04);
}
.kn-comm-card:hover {
    transform: translateY(-2px); border-color: #cdd7e5;
    box-shadow: var(--kn-shadow-md, 0 12px 30px rgba(10,37,64,.1));
}
.kn-comm-card-main { flex: 1 1 auto; min-width: 0; }
.kn-comm-card-top { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; margin-block-end: .55rem; }
.kn-comm-card h3 {
    font-size: 1.12rem; line-height: 1.4; margin: 0 0 .4rem;
    color: var(--kn-title, #0a2540); font-weight: 700; overflow-wrap: anywhere;
}
.kn-comm-card-excerpt {
    font-size: .92rem; color: var(--kn-text, #425466); line-height: 1.55; margin: 0 0 .75rem;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.kn-comm-card-meta {
    display: flex; align-items: center; gap: .5rem; flex-wrap: wrap;
    font-size: .82rem; color: var(--kn-muted, #647491);
}
.kn-comm-card-meta .dot { opacity: .5; }
.kn-comm-meta-author { font-weight: 600; color: var(--kn-text, #425466); }

.kn-comm-card-stats {
    display: flex; flex-direction: column; align-items: flex-end; justify-content: center;
    gap: .5rem; flex: 0 0 auto; padding-inline-start: 1rem;
    border-inline-start: 1px solid var(--kn-border, #e3e8ee);
}
.kn-comm-stat {
    display: inline-flex; align-items: center; gap: .35rem; font-size: .85rem; font-weight: 700;
    color: var(--kn-muted, #647491); white-space: nowrap;
}
.kn-comm-stat i { font-size: .85em; opacity: .8; }
.kn-comm-stat.is-answered { color: var(--kn-green, #0e9f6e); }

.kn-comm-avatar {
    position: relative; display: inline-flex; align-items: center; justify-content: center;
    inline-size: 32px; block-size: 32px; border-radius: 50%; overflow: hidden;
    color: #fff; font-weight: 700; font-size: .82rem; flex: 0 0 auto; line-height: 1; user-select: none;
}
.kn-comm-avatar--sm { inline-size: 24px; block-size: 24px; font-size: .7rem; }
.kn-comm-avatar--lg { inline-size: 44px; block-size: 44px; font-size: 1.05rem; }
.kn-comm-avatar-ini { display: inline-flex; }
.kn-comm-avatar img {
    position: absolute; inset: 0; inline-size: 100%; block-size: 100%; object-fit: cover;
    border-radius: 50%;
}

.kn-comm-chip-cat {
    font-size: .72rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
    color: var(--kn-blue, #2563eb);
}
.kn-comm-badge {
    display: inline-flex; align-items: center; gap: .3rem; font-size: .72rem; font-weight: 700;
    padding-inline: .55rem; padding-block: .16rem; border-radius: 999px; letter-spacing: .02em;
}
.kn-comm-badge--answered { background: #dcfce7; color: #166534; }
.kn-comm-badge--pinned { background: #fef3c7; color: #92400e; }
.kn-comm-badge--locked { background: #e2e8f0; color: #475569; }

.kn-comm-pagination {
    display: flex; align-items: center; justify-content: center; gap: 1rem;
    padding-block: 1.5rem 3rem; flex-wrap: wrap;
}
.kn-comm-page-btn {
    display: inline-flex; align-items: center; gap: .45rem; color: var(--kn-blue, #2563eb);
    font-weight: 600; text-decoration: none; border: 1px solid var(--kn-border, #e3e8ee);
    background: var(--kn-surface, #fff); border-radius: 999px; padding-inline: 1.1rem; padding-block: .5rem;
    transition: border-color .15s ease, transform .15s ease;
}
.kn-comm-page-btn:hover { border-color: var(--kn-blue, #2563eb); transform: translateY(-1px); color: var(--kn-blue-700, #1d4ed8); }
.kn-comm-pagination-pos { color: var(--kn-muted, #647491); font-size: .9rem; }

.kn-comm-empty { text-align: center; padding-block: 3.5rem 4rem; color: var(--kn-muted, #647491); }
.kn-comm-empty-ic {
    display: inline-flex; align-items: center; justify-content: center;
    inline-size: 68px; block-size: 68px; border-radius: 50%; margin-block-end: 1.1rem;
    background: rgba(37,99,235,.08); color: var(--kn-blue, #2563eb); font-size: 1.6rem;
}
.kn-comm-empty p { margin: 0 0 .4rem; font-size: 1.05rem; color: var(--kn-title, #0a2540); font-weight: 600; }
.kn-comm-empty-sub { font-size: .92rem; color: var(--kn-muted, #647491); font-weight: 400 !important; margin-block-end: 1.5rem !important; }

.kn-comm-topic { background: var(--kn-bg, #f6f9fc); }
.kn-comm-topic-wrap { max-width: 820px; margin-inline: auto; padding-block-start: 2rem; }
.kn-comm-back {
    display: inline-flex; align-items: center; gap: .4rem; color: var(--kn-muted, #647491);
    text-decoration: none; font-size: .9rem; font-weight: 600; margin-block: 1.25rem;
}
.kn-comm-back:hover { color: var(--kn-blue, #2563eb); }
.kn-comm-back i { font-size: .8em; }
[dir="rtl"] .kn-comm-back i,
[dir="rtl"] .kn-comm-pagination .fa-arrow-left,
[dir="rtl"] .kn-comm-pagination .fa-arrow-right { transform: scaleX(-1); }

.kn-comm-topic-head { margin-block-end: 1.5rem; }
.kn-comm-topic-head h1 {
    font-size: 1.95rem; line-height: 1.25; color: var(--kn-title, #0a2540);
    margin: .6rem 0 1rem; font-weight: 800; overflow-wrap: anywhere;
}
.kn-comm-topic-authorrow {
    display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
}
.kn-comm-topic-author-l { display: flex; align-items: center; gap: .7rem; min-width: 0; }
.kn-comm-topic-author-meta { display: flex; flex-direction: column; gap: .1rem; min-width: 0; }
.kn-comm-topic-author { font-weight: 700; color: var(--kn-title, #0a2540); font-size: .95rem; }
.kn-comm-topic-asked { font-size: .82rem; color: var(--kn-muted, #647491); }
.kn-comm-topic-stats { display: flex; align-items: center; gap: 1.1rem; }

.kn-comm-body {
    background: var(--kn-surface, #fff); border: 1px solid var(--kn-border, #e3e8ee); border-radius: 16px;
    padding: 1.5rem 1.6rem; font-size: 1.02rem; line-height: 1.7; color: #2d3b4e;
    white-space: pre-wrap; overflow-wrap: anywhere; margin-block-end: 2.25rem;
    box-shadow: var(--kn-shadow-sm, 0 1px 2px rgba(10,37,64,.05));
}

.kn-comm-replies-head {
    font-size: 1.15rem; color: var(--kn-title, #0a2540); font-weight: 700; margin: 0 0 1.1rem;
}

.kn-comm-reply {
    background: var(--kn-surface, #fff); border: 1px solid var(--kn-border, #e3e8ee); border-radius: 14px;
    padding: 1.15rem 1.35rem; margin-block-end: 1rem;
}
.kn-comm-reply--accepted {
    border-color: #86efac; border-inline-start: 4px solid var(--kn-green, #0e9f6e);
    box-shadow: 0 1px 3px rgba(14,159,110,.12);
}
.kn-comm-accepted-strip {
    display: inline-flex; align-items: center; gap: .4rem; color: #166534; font-weight: 700;
    font-size: .8rem; letter-spacing: .02em; margin-block-end: .7rem;
    background: #dcfce7; padding-inline: .6rem; padding-block: .22rem; border-radius: 999px;
}
.kn-comm-reply-head {
    display: flex; align-items: center; gap: .55rem; flex-wrap: wrap;
    font-size: .85rem; color: var(--kn-muted, #647491); margin-block-end: .7rem;
}
.kn-comm-reply-head .dot { opacity: .5; }
.kn-comm-reply-author { font-weight: 700; color: var(--kn-title, #0a2540); }
.kn-comm-reply-body {
    font-size: 1rem; line-height: 1.65; color: #2d3b4e; white-space: pre-wrap; overflow-wrap: anywhere;
}
.kn-comm-answer-form { margin-inline-start: auto; }
.kn-comm-answer-btn {
    background: transparent; border: 1px solid var(--kn-border, #e3e8ee); border-radius: 999px;
    color: var(--kn-muted, #647491); font: inherit; font-size: .78rem; font-weight: 600;
    padding-inline: .75rem; padding-block: .3rem; cursor: pointer;
    display: inline-flex; align-items: center; gap: .3rem; transition: border-color .15s ease, color .15s ease;
}
.kn-comm-answer-btn:hover { border-color: #86efac; color: #166534; }

.kn-comm-time { white-space: nowrap; }

.kn-comm-composer {
    background: var(--kn-surface, #fff); border: 1px solid var(--kn-border, #e3e8ee); border-radius: 16px;
    padding: 1.5rem 1.6rem; margin-block-start: 2rem;
    box-shadow: var(--kn-shadow-sm, 0 1px 2px rgba(10,37,64,.05));
}
.kn-comm-composer-row { display: flex; gap: .85rem; align-items: flex-start; }
.kn-comm-composer-field { flex: 1 1 auto; min-width: 0; }
.kn-comm-composer textarea {
    width: 100%; border: 1px solid var(--kn-border, #e3e8ee); border-radius: 12px;
    padding: .8rem .95rem; font: inherit; font-size: .98rem; color: var(--kn-title, #0a2540);
    background: var(--kn-surface, #fff); outline: none; box-sizing: border-box; resize: vertical;
    min-height: 110px; line-height: 1.6;
}
.kn-comm-composer textarea:focus { border-color: var(--kn-blue, #2563eb); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.kn-comm-composer-foot {
    display: flex; align-items: center; gap: .9rem; flex-wrap: wrap; margin-block-start: .8rem;
}
.kn-comm-composer-foot .kn-btn { margin-inline-start: auto; }

.kn-comm-counter { font-size: .8rem; color: var(--kn-muted, #647491); }
.kn-comm-counter.is-invalid { color: var(--kn-red, #ef4444); font-weight: 600; }

.kn-comm-notice {
    background: #f1f5f9; border: 1px solid #e2e8f0; color: #475569; border-radius: 12px;
    padding: 1rem 1.2rem; margin-block-start: 1.5rem; font-size: .95rem;
    display: flex; align-items: center; gap: .6rem;
}
.kn-comm-loginbar {
    position: sticky; inset-block-end: 1rem; z-index: 5;
    background: rgba(37,99,235,.06); border: 1px solid rgba(37,99,235,.22); border-radius: 14px;
    padding: 1.15rem 1.35rem; margin-block-start: 1.75rem;
    backdrop-filter: blur(6px);
}
.kn-comm-loginbar-inner {
    display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
}
.kn-comm-loginbar p { margin: 0; color: var(--kn-title, #0a2540); font-weight: 600; }

.kn-comm-crosslink { text-align: center; padding-block: 2rem 3rem; }
.kn-comm-crosslink a { color: var(--kn-blue, #2563eb); font-weight: 600; text-decoration: none; }
.kn-comm-crosslink a:hover { color: var(--kn-blue-700, #1d4ed8); }

.kn-comm-newgrid {
    display: grid; grid-template-columns: 1fr; gap: 1.5rem; padding-block-end: 3rem;
    align-items: start;
}
.kn-comm-formcard {
    background: var(--kn-surface, #fff); border: 1px solid var(--kn-border, #e3e8ee); border-radius: 16px;
    padding: 1.7rem 1.8rem; box-shadow: var(--kn-shadow-sm, 0 1px 2px rgba(10,37,64,.05));
}
.kn-comm-field { margin-block-end: 1.25rem; position: relative; }
.kn-comm-field label {
    display: block; font-size: .88rem; font-weight: 600; color: var(--kn-title, #0a2540);
    margin-block-end: .45rem;
}
.kn-comm-field input[type="text"], .kn-comm-field select, .kn-comm-field textarea {
    width: 100%; border: 1px solid var(--kn-border, #e3e8ee); border-radius: 10px;
    padding: .72rem .9rem; font: inherit; font-size: .95rem; color: var(--kn-title, #0a2540);
    background: var(--kn-surface, #fff); outline: none; box-sizing: border-box;
}
.kn-comm-field input:focus, .kn-comm-field select:focus, .kn-comm-field textarea:focus {
    border-color: var(--kn-blue, #2563eb); box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.kn-comm-field textarea { resize: vertical; min-height: 160px; line-height: 1.6; }
.kn-comm-field .kn-comm-counter { display: block; margin-block-start: .4rem; text-align: end; }

.kn-comm-select { position: relative; }
.kn-comm-select select {
    appearance: none; -webkit-appearance: none; -moz-appearance: none;
    padding-inline-end: 2.5rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='none' stroke='%23647491' stroke-width='1.6' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right .95rem center; background-size: 12px 8px;
}
[dir="rtl"] .kn-comm-select select { background-position: left .95rem center; }

.kn-comm-form-actions { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; margin-block-start: .5rem; }
.kn-comm-cancel { color: var(--kn-muted, #647491); font-weight: 600; text-decoration: none; }
.kn-comm-cancel:hover { color: var(--kn-title, #0a2540); }

.kn-comm-guidelines {
    background: var(--kn-surface, #fff); border: 1px solid var(--kn-border, #e3e8ee); border-radius: 16px;
    padding: 1.4rem 1.5rem; box-shadow: var(--kn-shadow-sm, 0 1px 2px rgba(10,37,64,.05));
}
.kn-comm-guidelines h2 { font-size: 1.02rem; font-weight: 700; color: var(--kn-title, #0a2540); margin: 0 0 1rem; }
.kn-comm-guidelines ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .85rem; }
.kn-comm-guidelines li {
    display: flex; align-items: flex-start; gap: .6rem; font-size: .9rem; line-height: 1.5;
    color: var(--kn-text, #425466);
}
.kn-comm-guidelines li i { color: var(--kn-green, #0e9f6e); margin-block-start: .15rem; flex: 0 0 auto; }

.kn-comm-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.kn-comm-error {
    background: #fef2f2; border: 1px solid #fecaca; color: #b91c1c; border-radius: 10px;
    padding: .75rem .95rem; margin-block-end: 1.2rem; font-size: .9rem;
    display: flex; align-items: center; gap: .5rem;
}

@media (min-width: 900px) {
    .kn-comm-newgrid { grid-template-columns: minmax(0, 1fr) 280px; gap: 1.75rem; }
}

@media (max-width: 600px) {
    .kn-comm-card { flex-direction: column; gap: .9rem; }
    .kn-comm-card-stats {
        flex-direction: row; align-items: center; gap: 1.1rem;
        padding-inline-start: 0; padding-block-start: .75rem;
        border-inline-start: none; border-block-start: 1px solid var(--kn-border, #e3e8ee);
    }
    .kn-comm-topic-head h1 { font-size: 1.55rem; }
    .kn-comm-composer-row { flex-direction: column; }
}

@media (max-width: 480px) {
    .kn-comm .kn-container { padding-inline: 16px; }
    .kn-comm-toolbar { padding-block: 1.5rem 1rem; }
    .kn-comm-search { max-width: none; }
    .kn-comm-body { padding: 1.15rem 1.2rem; }
    .kn-comm-formcard, .kn-comm-composer { padding: 1.25rem 1.2rem; }
    .kn-comm-loginbar-inner { flex-direction: column; text-align: center; }
    .kn-comm-loginbar-inner .kn-btn { width: 100%; justify-content: center; }
}

@media (max-width: 375px) {
    .kn-comm-topic-head h1 { font-size: 1.4rem; }
    .kn-comm-stats { font-size: .9rem; }
    .kn-comm-composer-foot .kn-btn { margin-inline-start: 0; width: 100%; justify-content: center; }
}

body.dark-mode .kn-comm { background: var(--kn-d-bg, #0b1220); }
body.dark-mode .kn-comm-card, body.dark-mode .kn-comm-body, body.dark-mode .kn-comm-reply,
body.dark-mode .kn-comm-formcard, body.dark-mode .kn-comm-composer, body.dark-mode .kn-comm-guidelines,
body.dark-mode .kn-comm-search {
    background: #131c2e; border-color: #26324a;
}
body.dark-mode .kn-comm-card:hover { border-color: #38507a; }
body.dark-mode .kn-comm-card h3, body.dark-mode .kn-comm-topic-head h1,
body.dark-mode .kn-comm-topic-author, body.dark-mode .kn-comm-reply-author,
body.dark-mode .kn-comm-field label, body.dark-mode .kn-comm-guidelines h2,
body.dark-mode .kn-comm-stat-item strong, body.dark-mode .kn-comm-empty p,
body.dark-mode .kn-comm-loginbar p, body.dark-mode .kn-comm-replies-head { color: #f1f5f9; }
body.dark-mode .kn-comm-card-excerpt, body.dark-mode .kn-comm-body,
body.dark-mode .kn-comm-reply-body, body.dark-mode .kn-comm-guidelines li { color: #cbd5e1; }
body.dark-mode .kn-comm-card-meta, body.dark-mode .kn-comm-topic-asked,
body.dark-mode .kn-comm-reply-head, body.dark-mode .kn-comm-pagination-pos,
body.dark-mode .kn-comm-empty-sub, body.dark-mode .kn-comm-search i,
body.dark-mode .kn-comm-stats, body.dark-mode .kn-comm-counter,
body.dark-mode .kn-comm-cancel, body.dark-mode .kn-comm-meta-author { color: #94a3b8; }
body.dark-mode .kn-comm-field input, body.dark-mode .kn-comm-field select,
body.dark-mode .kn-comm-field textarea, body.dark-mode .kn-comm-search input,
body.dark-mode .kn-comm-composer textarea {
    background: #0e1626; border-color: #26324a; color: #f1f5f9;
}
body.dark-mode .kn-comm-card-stats { border-inline-start-color: #26324a; }
body.dark-mode .kn-comm-page-btn { background: #131c2e; border-color: #26324a; color: #a5b4fc; }
body.dark-mode .kn-comm-notice { background: #172033; border-color: #26324a; color: #cbd5e1; }
body.dark-mode .kn-comm-empty-ic { background: rgba(37,99,235,.15); color: #a5b4fc; }
body.dark-mode .kn-comm-loginbar { background: rgba(37,99,235,.12); border-color: rgba(99,102,241,.35); }
body.dark-mode .kn-comm-answer-btn { border-color: #26324a; color: #94a3b8; }
body.dark-mode .kn-comm-reply--accepted { border-inline-start-color: var(--kn-green, #0e9f6e); }
@media (max-width: 600px) {
    body.dark-mode .kn-comm-card-stats { border-block-start-color: #26324a; }
}