/* ============================================================
 * Yikangyuan Blog Archive CSS
 * File: /assets/css/blog-archive.css
 * Purpose: external cached CSS for home.php / blog archives
 * Rank Math handles SEO meta/canonical/schema/sitemap.
 * ============================================================ */
/* ============================================================
 * Yikangyuan Blog Archive — Clean SEO/GEO + Responsive + Speed-Safe
 * ============================================================ */
:root {
    --ka-red: #BA1824;
    --ka-red-dark: #9f111c;
    --ka-red-soft: #fff5f5;
    --ka-navy: #0f172a;
    --ka-text: #1e293b;
    --ka-muted: #64748b;
    --ka-border: #e2e8f0;
    --ka-bg: #f8fafc;
    --ka-white: #ffffff;
    --ka-shadow: 0 10px 30px rgba(15, 23, 42, .06);
    --ka-radius: 12px;
    --ka-container: 1320px;
    --ka-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

.ka-blog-wrap {
    font-family: var(--ka-font);
    background: #fff;
    color: var(--ka-text);
    padding-bottom: 90px;
    overflow-x: hidden;
}

/* Hero */
.ka-archive-hero {
    position: relative;
    padding: 92px 20px;
    text-align: center;
    background:
        linear-gradient(rgba(6, 15, 28, .84), rgba(6, 15, 28, .84)),
        url('https://www.ykyhaircare.com/wp-content/uploads/2026/06/Packaging-for-hair-and-body-care-products.jpg') center / cover no-repeat;
}
.ka-hero-inner {
    position: relative;
    z-index: 1;
    max-width: 980px;
    margin: 0 auto;
}
.ka-hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
    padding: 7px 12px;
    border: 1px solid rgba(255,255,255,.18);
    border-radius: 999px;
    color: #f8fafc;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    background: rgba(255,255,255,.08);
}
.ka-hero-title {
    margin: 0 0 16px;
    color: #fff;
    font-size: clamp(34px, 4vw, 56px);
    line-height: 1.12;
    font-weight: 850;
    letter-spacing: -.035em;
}
.ka-hero-desc {
    max-width: 900px;
    margin: 0 auto;
    color: #e2e8f0;
    font-size: 16.5px;
    line-height: 1.8;
}
.ka-rm-breadcrumb,
.ka-breadcrumb-fallback {
    margin: 0 0 18px;
    color: #cbd5e1;
    font-size: 13px;
}
.ka-rm-breadcrumb a,
.ka-breadcrumb-fallback a {
    color: #fff;
    text-decoration: none;
}
.ka-rm-breadcrumb a:hover,
.ka-breadcrumb-fallback a:hover {
    color: var(--ka-red);
}
.ka-breadcrumb-fallback span {
    color: #94a3b8;
    margin: 0 6px;
}

/* Main layout */
.ka-archive-container {
    width: min(100% - 40px, var(--ka-container));
    margin: 58px auto 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 44px;
    align-items: start;
}
.ka-main-content {
    min-width: 0;
}
.ka-archive-heading {
    margin: 0 0 24px;
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 18px;
    border-bottom: 1px solid var(--ka-border);
    padding-bottom: 16px;
}
.ka-archive-heading h2 {
    margin: 0;
    color: var(--ka-navy);
    font-size: 24px;
    line-height: 1.25;
    font-weight: 850;
    letter-spacing: -.02em;
}
.ka-post-count {
    color: var(--ka-muted);
    font-size: 13px;
    white-space: nowrap;
}

/* Post grid */
.ka-post-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
}
.ka-post-card {
    display: flex;
    flex-direction: column;
    min-width: 0;
    background: #fff;
    border: 1px solid var(--ka-border);
    border-radius: var(--ka-radius);
    overflow: hidden;
    box-shadow: 0 1px 2px rgba(15,23,42,.03);
    transition: transform .24s ease, box-shadow .24s ease, border-color .24s ease;
}
.ka-post-card:hover {
    transform: translateY(-4px);
    border-color: rgba(186,24,36,.25);
    box-shadow: var(--ka-shadow);
}
.ka-post-img {
    display: block;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: var(--ka-bg);
}
.ka-post-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .55s ease;
}
.ka-post-card:hover .ka-post-img img {
    transform: scale(1.045);
}
.ka-post-info {
    padding: 20px 20px 22px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.ka-post-cat {
    margin-bottom: 10px;
}
.ka-post-cat a {
    display: inline-flex;
    padding: 5px 9px;
    border-radius: 999px;
    background: var(--ka-red-soft);
    color: var(--ka-red);
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .04em;
    text-decoration: none;
}
.ka-post-title {
    margin: 0 0 10px;
    font-size: 19px;
    line-height: 1.35;
    font-weight: 850;
    letter-spacing: -.012em;
}
.ka-post-title a {
    color: var(--ka-navy);
    text-decoration: none;
}
.ka-post-title a:hover {
    color: var(--ka-red);
}
.ka-post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
    align-items: center;
    margin-bottom: 13px;
    color: #94a3b8;
    font-size: 12.5px;
    font-weight: 600;
}
.ka-post-excerpt {
    color: var(--ka-muted);
    font-size: 14.5px;
    line-height: 1.7;
    margin: 0 0 18px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}
.ka-post-readmore {
    margin-top: auto;
    color: var(--ka-red);
    font-size: 14px;
    font-weight: 800;
    text-decoration: none;
}
.ka-post-readmore:hover {
    color: var(--ka-navy);
}

/* Empty state */
.ka-empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    background: var(--ka-bg);
    border: 1px solid var(--ka-border);
    border-radius: var(--ka-radius);
}
.ka-empty-state h3 {
    color: var(--ka-navy);
    margin: 0 0 10px;
    font-size: 24px;
}

/* Pagination */
.ka-pagination {
    margin-top: 52px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
}
.ka-pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 42px;
    height: 42px;
    padding: 0 13px;
    border: 1px solid var(--ka-border);
    border-radius: 7px;
    color: var(--ka-navy);
    background: #fff;
    font-weight: 800;
    text-decoration: none;
    transition: all .22s ease;
}
.ka-pagination .page-numbers:hover,
.ka-pagination .page-numbers.current {
    background: var(--ka-red);
    border-color: var(--ka-red);
    color: #fff;
}

/* Sidebar */
.ka-sidebar {
    position: sticky;
    top: 92px;
}
.ka-widget {
    margin-bottom: 28px;
    padding: 24px;
    background: #fff;
    border: 1px solid var(--ka-border);
    border-radius: var(--ka-radius);
    box-shadow: 0 1px 2px rgba(15,23,42,.03);
}
.ka-widget-title {
    margin: 0 0 18px;
    color: var(--ka-navy);
    font-size: 18px;
    line-height: 1.25;
    font-weight: 850;
    letter-spacing: -.01em;
}
.ka-widget-desc {
    margin: -8px 0 18px;
    color: var(--ka-muted);
    font-size: 14px;
    line-height: 1.65;
}

/* Search */
.ka-search-form {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
}
.ka-search-input {
    min-width: 0;
    height: 44px;
    padding: 0 13px;
    border: 1px solid var(--ka-border);
    border-radius: 7px;
    font-size: 14px;
    background: var(--ka-bg);
}
.ka-search-input:focus {
    outline: none;
    background: #fff;
    border-color: var(--ka-red);
    box-shadow: 0 0 0 3px rgba(186,24,36,.1);
}
.ka-search-btn {
    height: 44px;
    padding: 0 16px;
    border: 0;
    border-radius: 7px;
    background: var(--ka-navy);
    color: #fff;
    font-weight: 800;
    cursor: pointer;
}
.ka-search-btn:hover {
    background: var(--ka-red);
}

/* Recent posts */
.ka-recent-list {
    display: grid;
    gap: 14px;
}
.ka-recent-item {
    display: grid;
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 12px;
    align-items: center;
    text-decoration: none;
}
.ka-recent-thumb {
    aspect-ratio: 1 / .75;
    overflow: hidden;
    border-radius: 8px;
    background: var(--ka-bg);
}
.ka-recent-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.ka-recent-title {
    margin: 0 0 5px;
    color: var(--ka-navy);
    font-size: 13.5px;
    line-height: 1.4;
    font-weight: 800;
}
.ka-recent-item:hover .ka-recent-title {
    color: var(--ka-red);
}
.ka-recent-date {
    color: #94a3b8;
    font-size: 12px;
}

/* Category list */
.ka-cat-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.ka-cat-list li {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid var(--ka-border);
}
.ka-cat-list li:last-child {
    border-bottom: 0;
}
.ka-cat-list a {
    color: var(--ka-muted);
    text-decoration: none;
    font-weight: 700;
    font-size: 14px;
}
.ka-cat-list a:hover {
    color: var(--ka-red);
}
.ka-cat-count {
    color: #94a3b8;
    font-size: 12px;
    font-weight: 700;
}

/* CTA / form */
.ka-side-cta {
    background: linear-gradient(135deg, var(--ka-navy), #1c3358);
    color: #fff;
    border: 0;
}
.ka-side-cta .ka-widget-title {
    color: #fff;
}
.ka-side-cta p {
    color: rgba(255,255,255,.78);
    font-size: 14px;
    line-height: 1.65;
    margin: 0 0 16px;
}
.ka-side-cta a {
    display: inline-flex;
    justify-content: center;
    width: 100%;
    padding: 12px 16px;
    border-radius: 7px;
    background: var(--ka-red);
    color: #fff;
    text-decoration: none;
    font-weight: 850;
}
.ka-side-cta a:hover {
    background: var(--ka-red-dark);
}

.ka-sb-form {
    border-top: 4px solid var(--ka-red);
}
.ka-sb-form input[type="text"],
.ka-sb-form input[type="email"],
.ka-sb-form input[type="tel"],
.ka-sb-form textarea,
.ka-sb-form select {
    width: 100%;
    max-width: 100%;
    padding: 12px 13px;
    margin-bottom: 14px;
    border: 1px solid #cbd5e1;
    border-radius: 7px;
    font-size: 14px;
    background: var(--ka-bg);
    box-sizing: border-box;
}
.ka-sb-form textarea {
    min-height: 110px;
}
.ka-sb-form input:focus,
.ka-sb-form textarea:focus,
.ka-sb-form select:focus {
    outline: none;
    background: #fff;
    border-color: var(--ka-red);
    box-shadow: 0 0 0 3px rgba(186,24,36,.1);
}
.ka-sb-form input[type="submit"],
.ka-sb-form button[type="submit"] {
    width: 100%;
    min-height: 46px;
    border: 0;
    border-radius: 7px;
    background: var(--ka-red);
    color: #fff;
    font-weight: 850;
    cursor: pointer;
}
.ka-sb-form input[type="submit"]:hover,
.ka-sb-form button[type="submit"]:hover {
    background: var(--ka-red-dark);
}

/* Laptop */
@media (max-width: 1280px) {
    .ka-archive-container {
        grid-template-columns: minmax(0, 1fr) 320px;
        gap: 34px;
    }
    .ka-post-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 24px;
    }
}

/* Tablet */
@media (max-width: 991px) {
    .ka-archive-hero {
        padding: 72px 20px;
    }
    .ka-archive-container {
        grid-template-columns: 1fr;
        gap: 34px;
        margin-top: 42px;
    }
    .ka-sidebar {
        position: static;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 22px;
    }
    .ka-widget {
        margin-bottom: 0;
    }
    .ka-sb-form {
        grid-column: 1 / -1;
    }
}

/* Mobile */
@media (max-width: 767px) {
    .ka-blog-wrap {
        padding-bottom: 64px;
    }
    .ka-archive-hero {
        padding: 54px 16px;
        text-align: left;
    }
    .ka-hero-inner {
        max-width: 100%;
    }
    .ka-hero-eyebrow {
        font-size: 11px;
    }
    .ka-hero-title {
        font-size: 30px;
        line-height: 1.16;
    }
    .ka-hero-desc {
        font-size: 14.5px;
        line-height: 1.7;
    }
    .ka-archive-container {
        width: min(100% - 28px, var(--ka-container));
    }
    .ka-archive-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
    }
    .ka-archive-heading h2 {
        font-size: 21px;
    }
    .ka-post-grid {
        grid-template-columns: 1fr;
        gap: 22px;
    }
    .ka-post-info {
        padding: 18px;
    }
    .ka-post-title {
        font-size: 18px;
    }
    .ka-sidebar {
        grid-template-columns: 1fr;
    }
    .ka-widget {
        padding: 20px;
    }
    .ka-search-form {
        grid-template-columns: 1fr;
    }
    .ka-search-btn {
        width: 100%;
    }
    .ka-recent-item {
        grid-template-columns: 82px minmax(0, 1fr);
    }
}

/* Very small mobile */
@media (max-width: 380px) {
    .ka-pagination .page-numbers {
        min-width: 38px;
        height: 38px;
        padding: 0 10px;
    }
}

/* Speed / mobile interaction safeguards */
@media (hover: none), (pointer: coarse) {
    .ka-post-card:hover,
    .ka-side-cta a:hover,
    .ka-search-btn:hover {
        transform: none;
        box-shadow: 0 1px 2px rgba(15,23,42,.03);
    }
    .ka-post-card:hover .ka-post-img img {
        transform: none;
    }
}

@media (max-width: 767px) {
    .ka-post-readmore,
    .ka-side-cta a,
    .ka-contact-modal-btn,
    .ka-search-btn,
    .ka-pagination .page-numbers {
        min-height: 44px;
        touch-action: manipulation;
    }
}

.ka-contact-modal-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 46px;
    padding: 12px 16px;
    border: 0;
    border-radius: 7px;
    background: var(--ka-red);
    color: #fff !important;
    font-weight: 850;
    line-height: 1.2;
    text-decoration: none !important;
    cursor: pointer;
}
.ka-contact-modal-btn:hover {
    background: var(--ka-red-dark);
}
.ka-contact-note {
    margin: 12px 0 0;
    color: var(--ka-muted);
    font-size: 13px;
    line-height: 1.6;
}