/**
 * DDH Analytics Pro - Conversion Rate Optimization (CRO) & SEO Hub Styles
 * Thiết kế theo tông màu Đá Tự Nhiên (#f8f7f4 / #334155) & Xanh Navy Kiến Trúc (#0f2942)
 * đồng bộ 100% với giao diện gốc của daduchieu.com và daduchieu.vn.
 */

/* ==========================================================================
   0. TOP NAVIGATION BAR SINGLE-LINE FIX & REMOVE MAIN MENU "BÁO GIÁ" BUTTON
   ========================================================================== */
#wide-nav li.html_nav_position_text,
#wide-nav a.ddh-mobile-quote-btn,
#wide-nav .header-bottom-nav > li.html.custom {
    display: none !important;
}

#wide-nav .flex-row {
    flex-wrap: nowrap !important;
}

#wide-nav .flex-col.flex-left {
    flex: 1 1 auto !important;
    min-width: 0 !important;
}

#wide-nav .header-bottom-nav {
    display: flex !important;
    flex-wrap: nowrap !important;
    align-items: center !important;
    width: auto !important;
}

#wide-nav .header-bottom-nav > li {
    flex-shrink: 0 !important;
}

#wide-nav .header-bottom-nav > li > a.nav-top-link {
    padding: 12px 14px !important;
    font-size: 13.5px !important;
    white-space: nowrap !important;
}

.stuck #wide-nav .header-bottom-nav > li > a.nav-top-link {
    padding: 9px 12px !important;
    font-size: 13px !important;
}

@media (max-width: 1160px) and (min-width: 850px) {
    #wide-nav .header-bottom-nav > li > a.nav-top-link {
        padding: 10px 8px !important;
        font-size: 12px !important;
    }
}

/* ==========================================================================
   1. SINGLE PRODUCT QUICK SPEC & QUOTE SELECTOR BOX
   ========================================================================== */
.ddh-cro-prod-box {
    background: #f8f7f4;
    border: 1px solid #dcd9d0;
    border-left: 4px solid #0f2942;
    border-radius: 6px;
    padding: 16px 18px;
    margin: 18px 0 22px 0;
}

.ddh-cro-prod-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid #e5e2dc;
}

.ddh-cro-prod-tag {
    display: inline-block;
    background: #0f2942;
    color: #ffffff;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 9px;
    border-radius: 3px;
    letter-spacing: 0.04em;
}

.ddh-cro-prod-offer {
    font-size: 13px;
    color: #334155;
}

.ddh-cro-prod-offer strong {
    color: #b45309;
}

.ddh-cro-spec-group {
    margin-bottom: 12px;
}

.ddh-cro-spec-label {
    display: block;
    font-size: 12.5px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 6px;
}

.ddh-cro-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.ddh-cro-chip {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    color: #334155;
    font-size: 12px;
    font-weight: 500;
    padding: 5px 11px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s ease;
    margin: 0 !important;
    line-height: 1.4 !important;
    min-height: 0 !important;
    text-transform: none !important;
}

.ddh-cro-chip:hover {
    border-color: #0f2942;
    color: #0f2942;
}

.ddh-cro-chip.active {
    background: #0f2942;
    border-color: #0f2942;
    color: #ffffff;
    font-weight: 600;
}

.ddh-cro-prod-actions {
    display: grid;
    grid-template-columns: 1.25fr 1fr;
    gap: 10px;
    margin-top: 14px;
}

.ddh-cro-btn-primary,
.ddh-cro-btn-zalo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 14px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none !important;
    text-align: center;
    transition: all 0.2s ease;
    cursor: pointer;
    line-height: 1.3;
}

.ddh-cro-btn-primary {
    background: #0f2942;
    color: #ffffff !important;
    border: 1px solid #0f2942;
}

.ddh-cro-btn-primary:hover {
    background: #163a5f;
    border-color: #163a5f;
}

.ddh-cro-btn-zalo {
    background: #ffffff;
    color: #0f2942 !important;
    border: 1px solid #0f2942;
}

.ddh-cro-btn-zalo:hover {
    background: #f1f5f9;
}

.ddh-cro-quick-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px;
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid #e5e2dc;
    font-size: 12px;
}

.ddh-cro-quick-links a {
    color: #0f2942 !important;
    font-weight: 600;
    text-decoration: none;
}

.ddh-cro-quick-links a:hover {
    text-decoration: underline;
}

/* ==========================================================================
   2. BLOG POST CONTEXTUAL CONVERSION BOX
   ========================================================================== */
.ddh-post-cro-hub {
    background: #f8f7f4;
    border: 1px solid #dcd9d0;
    border-left: 4px solid #0f2942;
    border-radius: 6px;
    padding: 24px 26px;
    margin: 32px 0 24px 0;
}

.ddh-post-cro-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #64748b;
    margin-bottom: 6px;
}

.ddh-post-cro-title {
    color: #0f2942 !important;
    font-size: 19px !important;
    font-weight: 700 !important;
    margin: 0 0 10px 0 !important;
    line-height: 1.35 !important;
}

.ddh-post-cro-desc {
    color: #334155 !important;
    font-size: 14px !important;
    line-height: 1.6 !important;
    margin-bottom: 16px !important;
}

.ddh-post-cro-products {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 18px;
}

.ddh-post-prod-pill {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    color: #1e293b !important;
    padding: 5px 12px;
    border-radius: 4px;
    font-size: 12.5px;
    font-weight: 500;
    text-decoration: none !important;
    transition: all 0.15s ease;
}

.ddh-post-prod-pill:hover {
    border-color: #0f2942;
    color: #0f2942 !important;
    background: #f1f5f9;
}

.ddh-post-cro-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.ddh-cro-quote-article-btn {
    background: #0f2942;
    color: #ffffff !important;
    font-weight: 600;
    font-size: 13.5px;
    padding: 10px 18px;
    border-radius: 4px;
    text-decoration: none !important;
    transition: background 0.2s ease;
}

.ddh-cro-quote-article-btn:hover {
    background: #163a5f;
}

.ddh-cro-price-link-btn,
.ddh-cro-zalo-article-btn {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    color: #0f2942 !important;
    font-weight: 600;
    font-size: 13.5px;
    padding: 10px 16px;
    border-radius: 4px;
    text-decoration: none !important;
    transition: all 0.2s ease;
}

.ddh-cro-price-link-btn:hover,
.ddh-cro-zalo-article-btn:hover {
    border-color: #0f2942;
    background: #f1f5f9;
}

/* ==========================================================================
   3. LANDING PAGES: ARCHITECTURAL STONE CATALOG & QUOTATION SHEET
   ========================================================================== */
.ddh-lp-wrap {
    max-width: 1220px;
    margin: 20px auto 44px auto;
    font-family: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: #334155;
}

.ddh-lp-wrap h1,
.ddh-lp-wrap h2,
.ddh-lp-wrap h3,
.ddh-lp-wrap h4,
.ddh-lp-wrap th,
.ddh-lp-wrap td,
.ddh-lp-wrap a,
.ddh-lp-wrap span,
.ddh-lp-wrap strong,
.ddh-lp-wrap div,
.ddh-post-cro-hub h3,
.ddh-post-cro-hub div,
.ddh-smart-promo-card h4,
.ddh-smart-promo-card div {
    text-transform: none !important;
}

/* Bazan Hub Hero Banner with Real Stone Background */
.ddh-lp-hero {
    background-color: #1e293b;
    background-size: cover;
    background-position: center;
    border-radius: 6px;
    padding: 44px 40px;
    color: #ffffff;
    margin-bottom: 24px;
    border: 1px solid #0f2942;
}

.ddh-lp-hero-content {
    max-width: 820px;
}

.ddh-lp-kicker {
    font-size: 12.5px;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: #cbd5e1;
    margin-bottom: 10px;
}

.ddh-lp-hero h1 {
    color: #ffffff !important;
    font-size: 28px !important;
    font-weight: 700 !important;
    line-height: 1.3 !important;
    margin: 0 0 14px 0 !important;
}

.ddh-lp-hero p {
    color: #e2e8f0;
    font-size: 15px;
    line-height: 1.65;
    margin: 0 0 24px 0;
}

.ddh-lp-hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
}

.ddh-lp-btn-primary {
    background: #d97706;
    color: #ffffff !important;
    font-size: 14px;
    font-weight: 600;
    padding: 11px 22px;
    border-radius: 4px;
    text-decoration: none !important;
    transition: background 0.2s ease;
}

.ddh-lp-btn-primary:hover {
    background: #b45309;
}

.ddh-lp-btn-outline {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.45);
    color: #ffffff !important;
    font-size: 14px;
    font-weight: 600;
    padding: 10px 20px;
    border-radius: 4px;
    text-decoration: none !important;
    transition: all 0.2s ease;
}

.ddh-lp-btn-outline:hover {
    background: #ffffff;
    color: #0f2942 !important;
}

.ddh-lp-btn-text {
    color: #e2e8f0 !important;
    font-size: 13.5px;
    font-weight: 500;
    text-decoration: underline !important;
    padding: 6px 8px;
}

/* Metrics Bar */
.ddh-lp-metrics-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    background: #f8f7f4;
    border: 1px solid #dcd9d0;
    border-radius: 6px;
    padding: 20px 24px;
    margin-bottom: 36px;
}

.ddh-lp-metric-item {
    border-left: 3px solid #0f2942;
    padding-left: 14px;
}

.ddh-lp-metric-item strong {
    display: block;
    font-size: 14.5px;
    font-weight: 700;
    color: #0f2942;
    margin-bottom: 3px;
}

.ddh-lp-metric-item span {
    font-size: 12.5px;
    color: #475569;
    line-height: 1.45;
    display: block;
}

/* Section Headers */
.ddh-lp-section-header {
    margin: 32px 0 20px 0;
    padding-bottom: 12px;
    border-bottom: 2px solid #0f2942;
}

.ddh-lp-section-header h2 {
    font-size: 21px !important;
    font-weight: 700 !important;
    color: #0f2942 !important;
    margin: 0 0 4px 0 !important;
}

.ddh-lp-section-header p {
    font-size: 14px;
    color: #64748b;
    margin: 0;
}

/* 6 Stone Product Cards with Real Photos */
.ddh-lp-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    margin-bottom: 40px;
}

.ddh-lp-card {
    background: #ffffff;
    border: 1px solid #dcd9d0;
    border-radius: 6px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.ddh-lp-card:hover {
    border-color: #0f2942;
    box-shadow: 0 8px 24px rgba(15, 41, 66, 0.08);
}

.ddh-lp-card-img-link {
    position: relative;
    display: block;
    height: 205px;
    background: #e2e8f0;
    overflow: hidden;
}

.ddh-lp-card-img-link img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.35s ease;
}

.ddh-lp-card:hover .ddh-lp-card-img-link img {
    transform: scale(1.03);
}

.ddh-lp-card-cat {
    position: absolute;
    bottom: 10px;
    left: 10px;
    background: rgba(15, 41, 66, 0.88);
    color: #ffffff;
    font-size: 11px;
    font-weight: 600;
    padding: 3px 9px;
    border-radius: 3px;
}

.ddh-lp-card-body {
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.ddh-lp-card-body h3 {
    font-size: 17px !important;
    font-weight: 700 !important;
    margin: 0 0 12px 0 !important;
    line-height: 1.35 !important;
}

.ddh-lp-card-body h3 a {
    color: #0f2942 !important;
    text-decoration: none !important;
}

.ddh-lp-card-body h3 a:hover {
    color: #b45309 !important;
}

.ddh-lp-spec-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 16px;
    font-size: 13px;
}

.ddh-lp-spec-table th,
.ddh-lp-spec-table td {
    padding: 6px 0;
    border-bottom: 1px solid #f1f5f9;
    vertical-align: top;
    text-align: left;
}

.ddh-lp-spec-table th {
    width: 82px;
    color: #64748b;
    font-weight: 600;
    padding-right: 8px;
}

.ddh-lp-spec-table td {
    color: #1e293b;
}

.ddh-lp-card-foot {
    margin-top: auto;
    padding-top: 12px;
    border-top: 1px solid #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.ddh-lp-quote-btn {
    background: #0f2942;
    color: #ffffff !important;
    font-size: 12.5px;
    font-weight: 600;
    padding: 8px 14px;
    border-radius: 4px;
    text-decoration: none !important;
    transition: background 0.2s ease;
}

.ddh-lp-quote-btn:hover {
    background: #163a5f;
}

.ddh-lp-detail-link {
    font-size: 12.5px;
    font-weight: 600;
    color: #0f2942 !important;
    text-decoration: none !important;
}

.ddh-lp-detail-link:hover {
    text-decoration: underline !important;
}

/* Technical Knowledge Hub */
.ddh-lp-knowledge-box {
    background: #f8f7f4;
    border: 1px solid #dcd9d0;
    border-radius: 6px;
    padding: 28px 30px;
}

.ddh-lp-articles-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.ddh-lp-art-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 5px;
    padding: 16px 18px;
    text-decoration: none !important;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.ddh-lp-art-item:hover {
    border-color: #0f2942;
    box-shadow: 0 4px 12px rgba(15, 41, 66, 0.06);
}

.ddh-lp-art-num {
    font-size: 14px;
    font-weight: 700;
    color: #0f2942;
    background: #f1f5f9;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    min-width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ddh-lp-art-text strong {
    display: block;
    font-size: 14.5px;
    color: #0f2942;
    line-height: 1.4;
    margin-bottom: 4px;
}

.ddh-lp-art-text span {
    display: block;
    font-size: 12.5px;
    color: #64748b;
}

/* ==========================================================================
   4. PRICE PAGE DOCUMENT HEADER, STONE CALCULATOR & TABLE
   ========================================================================== */
.ddh-price-doc-header {
    background: #f8f7f4;
    border: 1px solid #dcd9d0;
    border-left: 5px solid #0f2942;
    border-radius: 6px;
    padding: 28px 32px;
    margin-bottom: 28px;
}

.ddh-price-doc-meta {
    font-size: 12.5px;
    font-weight: 700;
    color: #64748b;
    letter-spacing: 0.02em;
    margin-bottom: 6px;
}

.ddh-price-doc-header h1 {
    font-size: 25px !important;
    font-weight: 700 !important;
    color: #0f2942 !important;
    margin: 0 0 10px 0 !important;
    line-height: 1.3 !important;
}

.ddh-price-doc-header p {
    font-size: 14.5px;
    color: #334155;
    line-height: 1.6;
    margin: 0;
}

/* Calculator Box */
.ddh-calc-card {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    padding: 26px 28px;
    margin-bottom: 36px;
    box-shadow: 0 4px 16px rgba(15, 41, 66, 0.04);
}

.ddh-calc-header {
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 1px solid #e2e8f0;
}

.ddh-calc-header h2 {
    font-size: 19px !important;
    font-weight: 700 !important;
    color: #0f2942 !important;
    margin: 0 0 4px 0 !important;
}

.ddh-calc-header p {
    font-size: 13.5px;
    color: #64748b;
    margin: 0;
}

.ddh-calc-grid {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 28px;
    align-items: stretch;
}

.ddh-calc-field {
    margin-bottom: 16px;
}

.ddh-calc-field:last-child {
    margin-bottom: 0;
}

.ddh-calc-field label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 6px;
}

.ddh-calc-field select,
.ddh-calc-field input {
    width: 100%;
    height: 42px !important;
    padding: 0 12px !important;
    border: 1px solid #cbd5e1 !important;
    border-radius: 4px !important;
    font-size: 14px !important;
    color: #0f172a !important;
    background: #ffffff !important;
    box-shadow: none !important;
    margin: 0 !important;
}

.ddh-calc-field select:focus,
.ddh-calc-field input:focus {
    border-color: #0f2942 !important;
    outline: none !important;
}

.ddh-calc-result-box {
    background: #f8f7f4;
    border: 1px solid #dcd9d0;
    border-radius: 5px;
    padding: 20px 22px;
    display: flex;
    flex-direction: column;
}

.ddh-calc-res-title {
    font-size: 12px;
    font-weight: 700;
    color: #0f2942;
    letter-spacing: 0.06em;
    padding-bottom: 10px;
    margin-bottom: 10px;
    border-bottom: 1px solid #dcd9d0;
}

.ddh-calc-res-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 7px 0;
    border-bottom: 1px solid #eae7e1;
    font-size: 13.5px;
    color: #475569;
}

.ddh-calc-res-row strong {
    font-size: 14.5px;
    color: #0f172a;
}

.ddh-calc-res-row.highlight {
    border-bottom: none;
    padding-top: 10px;
    color: #0f2942;
    font-weight: 600;
}

.ddh-calc-res-row.highlight strong {
    font-size: 18px;
    color: #b45309;
}

.ddh-calc-quote-btn {
    margin-top: 14px;
    display: block;
    width: 100%;
    text-align: center;
    background: #0f2942;
    color: #ffffff !important;
    font-weight: 600;
    font-size: 13.5px;
    padding: 11px 16px;
    border-radius: 4px;
    text-decoration: none !important;
    transition: background 0.2s ease;
}

.ddh-calc-quote-btn:hover {
    background: #163a5f;
}

.ddh-calc-note {
    display: block;
    margin-top: 8px;
    font-size: 11.5px;
    color: #64748b;
}

/* Price Table */
.ddh-price-table-wrap {
    overflow-x: auto;
    background: #ffffff;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
}

.ddh-price-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 !important;
}

.ddh-price-table th {
    background: #0f2942;
    color: #ffffff;
    font-size: 13px;
    font-weight: 600;
    padding: 12px 14px;
    text-align: left;
    white-space: nowrap;
}

.ddh-price-table td {
    padding: 12px 14px;
    border-bottom: 1px solid #e2e8f0;
    font-size: 13.5px;
    color: #334155;
}

.ddh-price-table tr:nth-child(even) td {
    background: #f8fafc;
}

.ddh-price-table tr:hover td {
    background: #f1f5f9;
}

.ddh-price-table td a {
    color: #0f2942;
    text-decoration: none;
}

.ddh-price-table td a:hover {
    text-decoration: underline;
}

.ddh-price-val {
    font-weight: 700;
    color: #0f172a !important;
    white-space: nowrap;
}

.ddh-badge-disc {
    display: inline-block;
    background: #f1f5f9;
    color: #0f2942;
    border: 1px solid #cbd5e1;
    font-size: 11.5px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 3px;
    white-space: nowrap;
}

.ddh-tbl-quote-btn {
    display: inline-block;
    background: #0f2942;
    color: #ffffff !important;
    font-size: 12px;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 3px;
    text-decoration: none !important;
    white-space: nowrap;
}

.ddh-tbl-quote-btn:hover {
    background: #163a5f;
}

/* ==========================================================================
   5. RETURNING VISITOR BAR, SUBTLE PROMO CARD & MOBILE STICKY BAR
   ========================================================================== */
.ddh-returning-bar {
    background: #0f2942;
    color: #ffffff;
    padding: 7px 14px;
    font-size: 12.5px;
    border-bottom: 1px solid #1e3a5f;
    position: relative;
    z-index: 999;
}

.ddh-ret-inner {
    max-width: 1220px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
}

.ddh-ret-label {
    font-weight: 600;
    color: #cbd5e1;
}

.ddh-ret-items {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.ddh-ret-chip {
    background: rgba(255, 255, 255, 0.12);
    color: #ffffff !important;
    padding: 2px 9px;
    border-radius: 3px;
    font-size: 12px;
    text-decoration: none !important;
}

.ddh-ret-chip:hover {
    background: rgba(255, 255, 255, 0.22);
}

.ddh-ret-quote-btn {
    background: #d97706;
    color: #ffffff !important;
    font-weight: 600;
    font-size: 12px;
    padding: 4px 11px;
    border-radius: 3px;
    text-decoration: none !important;
}

.ddh-ret-close {
    background: transparent !important;
    border: none !important;
    color: #94a3b8 !important;
    font-size: 16px !important;
    cursor: pointer;
    padding: 0 4px !important;
    margin: 0 !important;
    min-height: 0 !important;
}

/* Subtle Project Discount Card */
.ddh-smart-promo-card {
    position: fixed;
    bottom: 20px;
    left: 20px;
    width: 320px;
    max-width: calc(100vw - 32px);
    background: #ffffff;
    color: #1e293b;
    border: 1px solid #cbd5e1;
    border-top: 4px solid #0f2942;
    border-radius: 6px;
    padding: 18px 20px;
    box-shadow: 0 12px 30px rgba(15, 41, 66, 0.16);
    z-index: 99980;
}

.ddh-promo-close {
    position: absolute;
    top: 8px;
    right: 10px;
    background: transparent !important;
    border: none !important;
    color: #64748b !important;
    font-size: 20px !important;
    line-height: 1 !important;
    padding: 2px 6px !important;
    margin: 0 !important;
    min-height: 0 !important;
    cursor: pointer;
}

.ddh-promo-tag {
    font-size: 10.5px;
    font-weight: 700;
    color: #b45309;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.ddh-smart-promo-card h4 {
    color: #0f2942 !important;
    font-size: 15px !important;
    font-weight: 700 !important;
    line-height: 1.35 !important;
    margin: 0 0 6px 0 !important;
}

.ddh-smart-promo-card p {
    font-size: 12.5px;
    color: #475569;
    line-height: 1.5;
    margin: 0 0 12px 0;
}

.ddh-promo-btns {
    display: flex;
    gap: 8px;
}

.ddh-promo-btn-primary {
    flex: 1;
    background: #0f2942;
    color: #ffffff !important;
    font-weight: 600;
    font-size: 12px;
    padding: 8px 10px;
    border-radius: 4px;
    text-align: center;
    text-decoration: none !important;
}

.ddh-promo-btn-sub {
    background: #f1f5f9;
    border: 1px solid #cbd5e1;
    color: #0f2942 !important;
    font-weight: 600;
    font-size: 12px;
    padding: 8px 10px;
    border-radius: 4px;
    text-decoration: none !important;
}

/* Sticky Mobile Bottom Bar */
.ddh-mobile-sticky-bar {
    display: none;
}

@media (max-width: 849px) {
    .ddh-mobile-sticky-bar {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        height: 56px;
        background: #ffffff;
        border-top: 1px solid #cbd5e1;
        box-shadow: 0 -4px 16px rgba(15, 41, 66, 0.1);
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        z-index: 99990;
    }

    body {
        padding-bottom: 58px !important;
    }

    #arcontactus,
    .arcontactus-widget,
    #ddh-chatbot-container {
        bottom: 66px !important;
    }

    .ddh-smart-promo-card {
        bottom: 66px;
        left: 12px;
        right: 12px;
        width: auto;
    }

    .ddh-ms-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        text-decoration: none !important;
        position: relative;
        border-right: 1px solid #f1f5f9;
        color: #1e293b !important;
    }

    .ddh-ms-item:last-child {
        border-right: none;
    }

    .ddh-ms-icon {
        font-size: 16px;
        line-height: 1;
        margin-bottom: 3px;
        color: #0f2942;
    }

    .ddh-ms-text {
        font-size: 11px;
        font-weight: 600;
    }

    .ddh-ms-quote {
        background: #0f2942;
        color: #ffffff !important;
    }

    .ddh-ms-quote .ddh-ms-icon,
    .ddh-ms-quote .ddh-ms-text {
        color: #ffffff !important;
    }

    .ddh-ms-badge {
        position: absolute;
        top: 3px;
        right: 6px;
        background: #d97706;
        color: #ffffff;
        font-size: 9px;
        font-weight: 700;
        padding: 1px 4px;
        border-radius: 2px;
    }

    /* Responsive adjustments for Landing Pages */
    .ddh-lp-hero {
        padding: 28px 20px;
    }

    .ddh-lp-hero h1 {
        font-size: 21px !important;
    }

    .ddh-lp-metrics-bar {
        grid-template-columns: 1fr 1fr;
    }

    .ddh-lp-grid,
    .ddh-lp-articles-grid,
    .ddh-calc-grid,
    .ddh-cro-prod-actions {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   6. DDH AI CHATBOT PROFESSIONAL REDESIGN (#ddh-chatbot-container)
   Overrides Flatsome form/button resets and aligns with Brand Navy (#0f2942)
   ========================================================================== */
#ddh-chatbot-container {
    --ddh-green: #0f2942 !important;
    --ddh-green-dk: #163a5f !important;
    --ddh-green-lt: #f1f5f9 !important;
    font-family: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif !important;
}

#ddh-chatbot-container .ddh-fab-chat {
    width: 50px !important;
    height: 50px !important;
    min-width: 50px !important;
    min-height: 50px !important;
    padding: 0 !important;
    margin: 0 !important;
    border-radius: 50% !important;
    background: linear-gradient(135deg, #0f2942 0%, #1e4976 100%) !important;
    border: 2px solid rgba(255, 255, 255, 0.85) !important;
    box-shadow: 0 6px 20px rgba(15, 41, 66, 0.35) !important;
}

#ddh-chatbot-container .ddh-fab-chat::before {
    border-color: rgba(15, 41, 66, 0.35) !important;
}

#ddh-chatbot-container .ddh-chatbot-window {
    width: 360px !important;
    height: 490px !important;
    max-height: calc(100vh - 110px) !important;
    border-radius: 12px !important;
    border: 1px solid #cbd5e1 !important;
    box-shadow: 0 18px 42px rgba(15, 41, 66, 0.22), 0 4px 12px rgba(15, 41, 66, 0.08) !important;
    background: #ffffff !important;
    overflow: hidden !important;
}

#ddh-chatbot-container.ddh-chatbot-bottom-right .ddh-chatbot-window {
    bottom: 60px !important;
    right: -10px !important;
}

#ddh-chatbot-container .ddh-chat-header {
    background: linear-gradient(90deg, #0b1f33 0%, #0f2942 60%, #163a5f 100%) !important;
    height: 60px !important;
    min-height: 60px !important;
    padding: 0 14px !important;
    gap: 10px !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1) !important;
}

#ddh-chatbot-container .ddh-header-logo {
    width: 38px !important;
    height: 38px !important;
    background: rgba(255, 255, 255, 0.12) !important;
    border: 1.5px solid rgba(255, 255, 255, 0.3) !important;
}

#ddh-chatbot-container .ddh-header-logo svg {
    width: 20px !important;
    height: 20px !important;
}

#ddh-chatbot-container .ddh-online-dot {
    width: 10px !important;
    height: 10px !important;
    background: #22c55e !important;
    border: 2px solid #0f2942 !important;
}

#ddh-chatbot-container .ddh-header-name {
    font-size: 14.5px !important;
    font-weight: 700 !important;
    color: #ffffff !important;
    letter-spacing: -0.01em !important;
}

#ddh-chatbot-container .ddh-header-sub {
    font-size: 11.5px !important;
    color: #cbd5e1 !important;
    margin-top: 2px !important;
}

#ddh-chatbot-container .ddh-header-actions {
    display: flex !important;
    align-items: center !important;
    gap: 6px !important;
}

#ddh-chatbot-container button.ddh-header-btn {
    width: 30px !important;
    height: 30px !important;
    min-width: 30px !important;
    min-height: 30px !important;
    max-height: 30px !important;
    padding: 0 !important;
    margin: 0 !important;
    border-radius: 6px !important;
    border: 1px solid rgba(255, 255, 255, 0.16) !important;
    background: rgba(255, 255, 255, 0.1) !important;
    color: #ffffff !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    box-shadow: none !important;
}

#ddh-chatbot-container button.ddh-header-btn:hover {
    background: rgba(255, 255, 255, 0.22) !important;
}

#ddh-chatbot-container .ddh-messages {
    background: #f8fafc !important;
    padding: 16px 14px 10px !important;
    gap: 10px !important;
}

#ddh-chatbot-container .ddh-msg-bot .ddh-msg-bubble {
    background: #ffffff !important;
    color: #1e293b !important;
    border: 1px solid #e2e8f0 !important;
    border-radius: 12px !important;
    border-bottom-left-radius: 3px !important;
    padding: 10px 14px !important;
    font-size: 13.5px !important;
    line-height: 1.55 !important;
    box-shadow: 0 2px 6px rgba(15, 41, 66, 0.04) !important;
}

#ddh-chatbot-container .ddh-msg-admin .ddh-msg-bubble {
    background: #fffbeb !important;
    border: 1px solid #fde68a !important;
    color: #0f172a !important;
}

#ddh-chatbot-container .ddh-msg-sender-tag {
    font-size: 11px !important;
    font-weight: 700 !important;
    color: #0f2942 !important;
    margin-bottom: 2px !important;
    padding-left: 2px !important;
}

#ddh-chatbot-container .ddh-msg-user .ddh-msg-bubble {
    background: #0f2942 !important;
    color: #ffffff !important;
    border-radius: 12px !important;
    border-bottom-right-radius: 3px !important;
    padding: 10px 14px !important;
    font-size: 13.5px !important;
    line-height: 1.55 !important;
    box-shadow: 0 2px 8px rgba(15, 41, 66, 0.16) !important;
}

#ddh-chatbot-container .ddh-quick-replies {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 6px !important;
    padding: 4px 14px 10px !important;
    background: #f8fafc !important;
}

#ddh-chatbot-container .ddh-quick-replies.ddh-qr-hidden {
    display: none !important;
}

#ddh-chatbot-container button.ddh-quick-btn {
    background: #ffffff !important;
    border: 1px solid #cbd5e1 !important;
    color: #0f2942 !important;
    border-radius: 6px !important;
    padding: 6px 11px !important;
    margin: 0 !important;
    min-height: 0 !important;
    height: auto !important;
    line-height: 1.35 !important;
    font-size: 12px !important;
    font-weight: 600 !important;
    text-transform: none !important;
    box-shadow: 0 1px 3px rgba(15, 41, 66, 0.04) !important;
    transition: all 0.15s ease !important;
}

#ddh-chatbot-container button.ddh-quick-btn:hover {
    background: #0f2942 !important;
    border-color: #0f2942 !important;
    color: #ffffff !important;
}

#ddh-chatbot-container .ddh-input-area {
    background: #ffffff !important;
    padding: 10px 12px !important;
    border-top: 1px solid #e2e8f0 !important;
}

#ddh-chatbot-container .ddh-input-wrap {
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    background: #f8fafc !important;
    border: 1px solid #cbd5e1 !important;
    border-radius: 8px !important;
    padding: 6px 8px 6px 12px !important;
    min-height: 42px !important;
    transition: border-color 0.2s ease !important;
}

#ddh-chatbot-container .ddh-input-wrap:focus-within {
    border-color: #0f2942 !important;
    background: #ffffff !important;
}

#ddh-chatbot-container textarea#ddh-user-input,
#ddh-chatbot-container .ddh-input {
    flex: 1 1 auto !important;
    width: auto !important;
    min-width: 0 !important;
    height: 22px !important;
    min-height: 22px !important;
    max-height: 66px !important;
    padding: 0 !important;
    margin: 0 !important;
    border: none !important;
    background: transparent !important;
    box-shadow: none !important;
    outline: none !important;
    resize: none !important;
    font-size: 13.5px !important;
    line-height: 22px !important;
    color: #0f172a !important;
}

#ddh-chatbot-container textarea#ddh-user-input::placeholder {
    color: #64748b !important;
}

#ddh-chatbot-container button#ddh-send-btn,
#ddh-chatbot-container .ddh-send-btn {
    width: 32px !important;
    height: 32px !important;
    min-width: 32px !important;
    min-height: 32px !important;
    max-height: 32px !important;
    padding: 0 !important;
    margin: 0 !important;
    border-radius: 6px !important;
    background: #0f2942 !important;
    color: #ffffff !important;
    border: none !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    box-shadow: none !important;
    flex-shrink: 0 !important;
}

#ddh-chatbot-container button#ddh-send-btn:hover {
    background: #163a5f !important;
}

#ddh-chatbot-container button#ddh-send-btn svg {
    width: 15px !important;
    height: 15px !important;
}

@media (max-width: 768px) {
    #ddh-chatbot-container .ddh-chatbot-window {
        width: calc(100vw - 24px) !important;
        height: 440px !important;
        max-height: calc(100dvh - 140px) !important;
    }
    #ddh-chatbot-container.ddh-chatbot-bottom-right .ddh-chatbot-window {
        right: 0 !important;
        bottom: 58px !important;
    }
}

/* ==========================================================================
   8. COMPANY PROFILE / GIỚI THIỆU PAGE (.ddh-about-wrapper)
   ========================================================================== */
.ddh-about-stats-bar {
    grid-template-columns: repeat(4, 1fr) !important;
    margin-bottom: 36px !important;
}

.ddh-about-story-grid {
    display: grid;
    grid-template-columns: 1.25fr 1fr;
    gap: 32px;
    align-items: start;
    background: #ffffff;
    border: 1px solid #dcd9d0;
    border-radius: 6px;
    padding: 30px;
    margin-bottom: 34px;
}

.ddh-about-section-tag {
    display: inline-block;
    background: #f1f0ec;
    border: 1px solid #dcd9d0;
    color: #0f2942;
    font-size: 11.5px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 3px;
    margin-bottom: 10px;
    letter-spacing: 0.03em;
}

.ddh-about-story-text h2 {
    font-size: 22px !important;
    font-weight: 700 !important;
    color: #0f2942 !important;
    line-height: 1.35 !important;
    margin: 0 0 14px 0 !important;
    text-transform: none !important;
}

.ddh-about-story-text p {
    font-size: 14.5px;
    line-height: 1.68;
    color: #334155;
    margin-bottom: 12px;
}

.ddh-about-story-highlights {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 9px;
}

.ddh-about-hl-item {
    background: #f8f7f4;
    border-left: 3px solid #0f2942;
    padding: 9px 14px;
    font-size: 13.5px;
    line-height: 1.5;
    color: #1e293b;
}

.ddh-about-hl-item strong {
    color: #0f2942;
}

.ddh-about-story-visual {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.ddh-about-img-card {
    border: 1px solid #dcd9d0;
    border-radius: 6px;
    overflow: hidden;
    background: #f8f7f4;
}

.ddh-about-img-card img {
    width: 100%;
    height: 270px;
    object-fit: cover;
    display: block;
}

.ddh-about-img-caption {
    padding: 12px 16px;
}

.ddh-about-img-caption strong {
    display: block;
    font-size: 13.5px;
    color: #0f2942;
    margin-bottom: 3px;
}

.ddh-about-img-caption span {
    font-size: 12.5px;
    color: #64748b;
    line-height: 1.45;
    display: block;
}

.ddh-about-showcase-strip {
    border: 1px solid #dcd9d0;
    border-radius: 6px;
    padding: 8px;
    background: #ffffff;
}

.ddh-about-showcase-strip img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
}

/* Vision, Mission, Core Values Pillars */
.ddh-about-pillars-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 38px;
}

.ddh-about-pillar-card {
    background: #f8f7f4;
    border: 1px solid #dcd9d0;
    border-top: 3px solid #0f2942;
    border-radius: 6px;
    padding: 22px 24px;
}

.ddh-about-pillar-num {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    color: #b45309;
    background: #ffffff;
    border: 1px solid #dcd9d0;
    padding: 2px 8px;
    border-radius: 3px;
    margin-bottom: 10px;
}

.ddh-about-pillar-card h3 {
    font-size: 17.5px !important;
    font-weight: 700 !important;
    color: #0f2942 !important;
    margin: 0 0 10px 0 !important;
    text-transform: none !important;
}

.ddh-about-pillar-card p {
    font-size: 13.8px;
    line-height: 1.62;
    color: #334155;
    margin: 0;
}

.ddh-about-prod-desc {
    font-size: 13px;
    line-height: 1.55;
    color: #475569;
    margin: 0 0 12px 0;
}

/* 6 Surface Processing Technologies Grid */
.ddh-about-tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-bottom: 38px;
}

.ddh-about-tech-card {
    background: #ffffff;
    border: 1px solid #dcd9d0;
    border-radius: 6px;
    padding: 20px 22px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.ddh-about-tech-card:hover {
    border-color: #0f2942;
    box-shadow: 0 6px 18px rgba(15, 41, 66, 0.06);
}

.ddh-about-tech-card h4 {
    font-size: 15.5px !important;
    font-weight: 700 !important;
    color: #0f2942 !important;
    margin: 0 0 8px 0 !important;
    text-transform: none !important;
}

.ddh-about-tech-card p {
    font-size: 13.5px;
    line-height: 1.6;
    color: #475569;
    margin: 0;
}

/* 5-Step Project Process */
.ddh-about-process-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 14px;
    margin-bottom: 40px;
}

.ddh-about-step {
    background: #f8f7f4;
    border: 1px solid #dcd9d0;
    border-radius: 6px;
    padding: 18px 16px;
}

.ddh-about-step-badge {
    display: inline-block;
    background: #0f2942;
    color: #ffffff;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 9px;
    border-radius: 3px;
    margin-bottom: 10px;
}

.ddh-about-step h4 {
    font-size: 14.5px !important;
    font-weight: 700 !important;
    color: #0f2942 !important;
    margin: 0 0 7px 0 !important;
    line-height: 1.35 !important;
    text-transform: none !important;
}

.ddh-about-step p {
    font-size: 12.8px;
    line-height: 1.55;
    color: #475569;
    margin: 0;
}

/* Corporate Legal Info & Map Box */
.ddh-about-corporate-box {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 28px;
    background: #ffffff;
    border: 1px solid #dcd9d0;
    border-radius: 6px;
    padding: 28px 30px;
    margin-bottom: 16px;
}

.ddh-about-corp-info h3 {
    font-size: 20px !important;
    font-weight: 700 !important;
    color: #0f2942 !important;
    margin: 0 0 8px 0 !important;
    text-transform: none !important;
}

.ddh-about-corp-sub {
    font-size: 13.8px;
    color: #475569;
    line-height: 1.58;
    margin-bottom: 16px;
}

.ddh-about-corp-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
    margin-bottom: 20px;
}

.ddh-about-corp-table th,
.ddh-about-corp-table td {
    padding: 9px 8px;
    border-bottom: 1px solid #e2e8f0;
    vertical-align: top;
    text-align: left;
}

.ddh-about-corp-table th {
    width: 195px;
    color: #475569;
    font-weight: 600;
}

.ddh-about-corp-table td {
    color: #0f172a;
}

.ddh-about-corp-table td a {
    color: #0f2942;
    text-decoration: none;
}

.ddh-about-corp-table td a:hover {
    text-decoration: underline;
}

.ddh-about-corp-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.ddh-about-btn-call,
.ddh-about-btn-zalo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 11px 18px;
    border-radius: 4px;
    font-size: 13.5px;
    font-weight: 600;
    text-decoration: none !important;
    transition: all 0.2s ease;
}

.ddh-about-btn-call {
    background: #f8f7f4;
    border: 1px solid #0f2942;
    color: #0f2942 !important;
}

.ddh-about-btn-call:hover {
    background: #0f2942;
    color: #ffffff !important;
}

.ddh-about-btn-zalo {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    color: #1e293b !important;
}

.ddh-about-btn-zalo:hover {
    border-color: #0f2942;
    color: #0f2942 !important;
}

.ddh-about-corp-map {
    display: flex;
    flex-direction: column;
    border: 1px solid #dcd9d0;
    border-radius: 6px;
    overflow: hidden;
    background: #f8f7f4;
}

.ddh-about-map-frame {
    flex: 1;
    min-height: 320px;
}

.ddh-about-map-frame iframe {
    width: 100%;
    height: 100%;
    min-height: 320px;
    display: block;
}

.ddh-about-map-caption {
    padding: 12px 16px;
    border-top: 1px solid #dcd9d0;
}

.ddh-about-map-caption strong {
    display: block;
    font-size: 13px;
    color: #0f2942;
    margin-bottom: 2px;
}

.ddh-about-map-caption span {
    font-size: 12px;
    color: #64748b;
}

@media (max-width: 991px) {
    .ddh-about-stats-bar,
    .ddh-about-pillars-grid,
    .ddh-about-tech-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
    .ddh-about-story-grid,
    .ddh-about-corporate-box {
        grid-template-columns: 1fr;
    }
    .ddh-about-process-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .ddh-about-stats-bar,
    .ddh-about-pillars-grid,
    .ddh-about-tech-grid,
    .ddh-about-process-grid {
        grid-template-columns: 1fr !important;
    }
    .ddh-about-story-grid,
    .ddh-about-corporate-box {
        padding: 18px;
    }
    .ddh-about-corp-table th {
        width: 125px;
    }
}