/* ==========================================================================
   RON GROUP 3.0 ? Foshan Furniture Manufacturing Portal Styles
   Brand DNA Tokens: #212121 Base | #1a1a1b Alt | #131314 Deep | #313233 Surface
   Gold Accent: #d4ac5a (<= 15%) | Poppins Font | 0px Radius Strictly
   ========================================================================== */

:root {
    --bg-base: #212121;
    --bg-alt: #1a1a1b;
    --bg-deep: #131314;
    --bg-surface: #313233;
    --bg-surface-hover: #3a3b3c;
    --color-gold: #d4ac5a;
    --color-gold-hover: #c39b49;
    --color-gold-tint: rgba(212, 172, 90, 0.12);
    --color-gold-border: rgba(212, 172, 90, 0.35);
    --gold-accent: #d4ac5a;
    --text-primary: #ffffff;
    --text-main: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.82);
    --text-muted: rgba(255, 255, 255, 0.52);
    --border-color: rgba(255, 255, 255, 0.10);
    --border-color-light: rgba(255, 255, 255, 0.18);
    --link-underline: rgba(212, 172, 90, 0.5);
    --font-main: 'Poppins', 'Poppins-Light', -apple-system, BlinkMacSystemFont, sans-serif;
    --transition-standard: all 0.35s cubic-bezier(0.19, 1, 0.22, 1);
}

/* ==========================================================================
   MODERN SLEEK GOLDEN SCROLLBAR (Brand DNA Aligned)
   ========================================================================== */
::-webkit-scrollbar {
    width: 4px;
    height: 4px;
    background-color: var(--bg-deep);
}
::-webkit-scrollbar-track {
    background-color: #181819;
}
::-webkit-scrollbar-thumb {
    background-color: #d4ac5a !important;
    border-radius: 0px !important;
}
::-webkit-scrollbar-thumb:hover {
    background-color: #e5bf6c !important;
}
* {
    scrollbar-width: thin;
    scrollbar-color: #d4ac5a #181819 !important;
}


/* Base resets & typography */
html {
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
}

body.rg-foshan-page,
.rg-foshan-page {
    background-color: var(--bg-base);
    color: var(--text-secondary);
    font-family: var(--font-main);
    font-size: 15px;
    line-height: 1.75;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
}

.rg-foshan-page * {
    box-sizing: border-box;
    border-radius: 0px !important;
}

img,
.rg-media-img,
.rg-media-frame img {
    max-width: 100%;
    height: auto;
    display: block;
}

.rg-foshan-page a {
    color: var(--gold-accent, #d4ac5a);
    text-decoration: none;
    transition: all 0.2s ease;
}
.rg-foshan-page a:hover {
    color: #ffffff;
}

/* Container */
.rg-container {
    max-width: 1440px;
    width: 100%;
    padding: 0 2rem;
    margin: 0 auto;
    position: relative;
}

@media (max-width: 1200px) {
    .rg-container {
        padding: 0 2rem;
    }
}
@media (max-width: 768px) {
    .rg-container {
        padding: 0 16px;
    }
}
@media (max-width: 480px) {
    .rg-container {
        padding: 0 16px;
    }
}

/* Eyebrows & Headings */
.rg-eyebrow {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-gold);
    display: inline-block;
    margin-bottom: 12px;
}

.rg-h1 {
    font-size: clamp(20px, 5.5vw, 32px);
    font-weight: 500;
    line-height: 1.25;
    color: var(--text-primary);
    margin: 0 0 18px 0;
    word-break: break-word;
    overflow-wrap: break-word;
}

.rg-h2 {
    font-size: clamp(18px, 4.5vw, 26px);
    font-weight: 500;
    line-height: 1.25;
    color: var(--text-primary);
    margin: 0 0 14px 0;
    word-break: break-word;
    overflow-wrap: break-word;
}

.rg-h3 {
    font-size: 17px;
    font-weight: 500;
    color: var(--color-gold);
    margin: 0 0 10px 0;
}

.rg-lead {
    font-size: clamp(14px, 1.5vw, 16px);
    line-height: 1.8;
    color: var(--text-secondary);
    max-width: 880px;
}

/* Section Wrapper */
.rg-section {
    padding: 80px 0;
    position: relative;
}
@media (max-width: 768px) {
    .rg-section {
        padding: 32px 0;
    }
}
@media (max-width: 480px) {
    .rg-section {
        padding: 32px 0;
    }
}

.rg-section.alt-bg {
    background-color: var(--bg-alt);
}

.rg-section.deep-bg {
    background-color: var(--bg-deep);
}

.rg-section-header {
    margin-bottom: 40px;
}
@media (max-width: 768px) {
    .rg-section-header {
        margin-bottom: 28px;
    }
}

.rg-section-header.center {
    text-align: center;
}
.rg-section-header.center .rg-lead {
    margin: 0 auto;
}

/* Buttons */
.rg-btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
}
@media (max-width: 576px) {
    .rg-btn-group {
        flex-direction: column;
        width: 100%;
    }
    .rg-btn-group .rg-btn {
        width: 100%;
        text-align: center;
    }
}

.rg-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    text-decoration: none;
    transition: var(--transition-standard);
    cursor: pointer;
    border: 1px solid transparent;
}

.rg-foshan-page a.rg-btn-primary,
.rg-btn-primary {
    background-color: #d4ac5a !important;
    color: #131314 !important;
    border-color: #d4ac5a !important;
    font-weight: 700 !important;
}
.rg-foshan-page a.rg-btn-primary:hover,
.rg-btn-primary:hover {
    background-color: #e5bf6c !important;
    border-color: #e5bf6c !important;
    color: #000000 !important;
}

.rg-btn-outline {
    background-color: transparent;
    color: var(--color-gold);
    border-color: var(--color-gold);
}
.rg-btn-outline:hover {
    background-color: var(--color-gold-tint);
    color: #fff;
    border-color: #fff;
}

/* ==========================================================================
   MODULE 1: Hero & AEO Direct Answer
   ========================================================================== */
.rg-hero {
    padding: 50px 0 60px 0;
    background: linear-gradient(180deg, rgba(19, 19, 20, 0.98) 0%, rgba(33, 33, 33, 0.98) 100%);
    border-bottom: 1px solid var(--border-color);
}
@media (max-width: 768px) {
    .rg-hero {
        padding: 30px 0 40px 0;
    }
}

.rg-breadcrumbs {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 20px;
}
.rg-breadcrumbs a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition-standard);
}
.rg-breadcrumbs a:hover {
    color: var(--color-gold);
}

.rg-hero-grid {
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    gap: 40px;
    align-items: center;
}

@media (max-width: 1024px) {
    .rg-hero-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

.rg-aeo-card {
    background-color: var(--bg-surface);
    border-left: 3px solid var(--color-gold);
    padding: 24px;
    margin: 24px 0;
}
@media (max-width: 768px) {
    .rg-aeo-card {
        padding: 14px 16px;
        margin: 14px 0;
        font-size: 13px;
        line-height: 1.5;
    }
    .rg-aeo-card .rg-aeo-text {
        font-size: 13px;
        line-height: 1.5;
    }
}
@media (max-width: 576px) {
    .rg-aeo-card {
        padding: 14px 16px;
        margin: 14px 0;
        font-size: 13px;
        line-height: 1.5;
    }
    .rg-aeo-card .rg-aeo-text {
        font-size: 13px;
        line-height: 1.5;
    }
}

.rg-aeo-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.rg-aeo-text {
    font-size: 14px;
    line-height: 1.75;
    color: var(--text-primary);
    margin: 0;
}

.rg-hero-badges {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}
@media (max-width: 576px) {
    .rg-hero-badges {
        grid-template-columns: 1fr;
    }
}

.rg-badge-card {
    background-color: rgba(49, 50, 51, 0.6);
    border: 1px solid var(--border-color);
    padding: 20px 16px;
    transition: var(--transition-standard);
}
.rg-badge-card:hover {
    border-color: var(--color-gold-border);
    background-color: var(--bg-surface);
}

.rg-badge-icon {
    font-size: 22px;
    color: var(--color-gold);
    margin-bottom: 10px;
}

.rg-badge-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.rg-badge-desc {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.55;
    margin: 0;
}

/* ==========================================================================
   MODULE 2: Quantified Trust Stats Bar
   ========================================================================== */
.rg-stats-bar {
    background-color: var(--bg-deep);
    border-bottom: 1px solid var(--border-color);
    padding: 30px 0;
}

.rg-stats-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    text-align: center;
}

@media (max-width: 991px) {
    .rg-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px 12px;
    }
}
@media (max-width: 480px) {
    .rg-stats-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

.rg-stat-card {
    padding: 12px 10px;
    border-right: 1px solid var(--border-color);
}
.rg-stat-card:last-child {
    border-right: none;
}
@media (max-width: 991px) {
    .rg-stat-card {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        padding-bottom: 16px;
    }
    .rg-stat-card:last-child {
        border-bottom: none;
    }
}

.rg-stat-num {
    font-size: clamp(28px, 3vw, 40px);
    font-weight: 600;
    color: var(--color-gold);
    line-height: 1.1;
    margin-bottom: 4px;
}

.rg-stat-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.rg-stat-sub {
    font-size: 11px;
    color: var(--text-muted);
    margin: 0;
}

/* ==========================================================================
   MODULE 3: Interactive Foshan Cluster Zoning
   ========================================================================== */
.rg-cluster-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
    gap: 4px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
}
.rg-cluster-tabs::-webkit-scrollbar {
    height: 3px;
}

.rg-cluster-tab-btn {
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent !important;
    padding: 12px 18px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition-standard);
    white-space: nowrap;
    flex-shrink: 0;
}

.rg-cluster-tab-btn.active,
.rg-cluster-tab-btn:hover {
    color: var(--color-gold);
    border-bottom-color: var(--color-gold) !important;
    background-color: var(--color-gold-tint);
}

.rg-cluster-panel {
    display: none;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 36px 30px;
}
@media (max-width: 768px) {
    .rg-cluster-panel {
        padding: 24px 18px;
    }
}
.rg-cluster-panel.active {
    display: block;
    animation: fadeIn 0.4s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.rg-cluster-panel-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 36px;
}
@media (max-width: 991px) {
    .rg-cluster-panel-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

.rg-cluster-spec-list {
    list-style: none;
    padding: 0;
    margin: 16px 0 0 0;
}
.rg-cluster-spec-list li {
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 13px;
}
.rg-cluster-spec-list li span:first-child {
    color: var(--text-muted);
}
.rg-cluster-spec-list li span:last-child {
    color: var(--text-primary);
    font-weight: 500;
}

/* ==========================================================================
   MODULE 4: 4 Gateway Cards to Cluster Guides
   ========================================================================== */
.rg-gateway-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
@media (max-width: 1200px) {
    .rg-gateway-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 600px) {
    .rg-gateway-grid {
        grid-template-columns: 1fr;
    }
}

.rg-gateway-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 28px 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition-standard);
    text-decoration: none;
}
.rg-gateway-card:hover {
    border-color: var(--color-gold);
    transform: translateY(-4px);
}

.rg-gateway-tag {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--color-gold);
    text-transform: uppercase;
    margin-bottom: 12px;
}

.rg-gateway-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
    line-height: 1.4;
}

.rg-gateway-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 20px;
}

.rg-gateway-link {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ==========================================================================
   MODULE 5: Commercial vs Residential Spec Comparison Table
   ========================================================================== */
.rg-table-scroll-hint {
    display: none;
    font-size: 11px;
    color: var(--color-gold);
    margin-bottom: 8px;
    text-align: right;
    letter-spacing: 0.5px;
}
@media (max-width: 991px) {
    .rg-table-scroll-hint {
        display: block;
    }
}

.rg-table-wrapper {
    display: block;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    overflow-x: auto;
    border: 1px solid var(--border-color);
    margin: 20px 0 30px 0;
    -webkit-overflow-scrolling: touch;
}

.rg-table-wrapper th:first-child,
.rg-table-wrapper td:first-child,
.rg-spec-table th:first-child,
.rg-spec-table td:first-child {
    position: sticky;
    left: 0;
    background: #262628;
    z-index: 2;
    box-shadow: 2px 0 4px rgba(0, 0, 0, 0.5);
}

.rg-spec-table {
    width: 100%;
    min-width: 620px;
    border-collapse: collapse;
    font-size: 13px;
    text-align: left;
}

.rg-spec-table th {
    background-color: var(--bg-deep);
    color: var(--text-primary);
    font-weight: 600;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-color-light);
    letter-spacing: 0.5px;
}

.rg-spec-table th.rg-highlight-col {
    background-color: var(--color-gold-tint);
    color: var(--color-gold);
    border-top: 2px solid var(--color-gold);
}

.rg-spec-table td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-color);
    vertical-align: top;
    line-height: 1.6;
}

.rg-spec-table tr:hover td {
    background-color: rgba(255, 255, 255, 0.02);
}

.rg-spec-table td.rg-highlight-col {
    background-color: rgba(212, 172, 90, 0.04);
    font-weight: 500;
    color: var(--text-primary);
    border-left: 1px solid var(--color-gold-border);
    border-right: 1px solid var(--color-gold-border);
}

.rg-spec-table td.rg-bad-col {
    color: var(--text-muted);
}

/* Table Custom Notice & Consultation CTA (Brand DNA 0px radius) */
.rg-table-custom-notice {
    margin-top: 24px;
    padding: 24px 28px;
    background: linear-gradient(135deg, rgba(212, 172, 90, 0.08) 0%, rgba(33, 33, 33, 0.95) 100%);
    border: 1px solid var(--color-gold-border);
    border-radius: 0px !important;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
}

@media (max-width: 991px) {
    .rg-table-custom-notice {
        flex-direction: column;
        align-items: flex-start;
        padding: 20px 18px;
        gap: 18px;
    }
}

.rg-notice-content {
    flex: 1;
}

.rg-notice-badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-gold);
    background-color: rgba(212, 172, 90, 0.15);
    border: 1px solid var(--color-gold-border);
    border-radius: 0px !important;
    padding: 4px 10px;
    margin-bottom: 10px;
}

.rg-notice-text {
    font-size: 13px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0;
}

.rg-notice-text strong {
    color: var(--text-primary);
}

.rg-notice-cta {
    flex-shrink: 0;
}

.rg-btn-consult {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 24px;
    background-color: var(--color-gold);
    color: #131314 !important;
    font-size: 15px;
    text-transform: none;
    font-weight: 700;
    border: 1px solid var(--color-gold);
    border-radius: 0px !important;
    transition: all 0.25s ease;
    box-shadow: 0 4px 16px rgba(212, 172, 90, 0.25);
    text-decoration: none;
}

.rg-btn-consult:hover {
    background-color: #e5be6c;
    box-shadow: 0 6px 22px rgba(212, 172, 90, 0.4);
    transform: translateY(-1px);
    color: #131314 !important;
}

.rg-cta-icon {
    font-size: 20px;
}

.rg-cta-text {
    display: flex;
    flex-direction: column;
    text-align: left;
    line-height: 1.2;
}

.rg-cta-text strong {
    font-size: 15px;
    color: #131314;
}

.rg-cta-text small {
    font-size: 11px;
    color: rgba(19, 19, 20, 0.85);
    font-weight: 500;
}

/* ==========================================================================
   MODULE 6: Ron Group 6-Step Closed-Loop Delivery
   ========================================================================== */
.rg-steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
@media (max-width: 991px) {
    .rg-steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 600px) {
    .rg-steps-grid {
        grid-template-columns: 1fr;
    }
}

.rg-step-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 28px 20px;
    position: relative;
    transition: var(--transition-standard);
}
.rg-step-card:hover {
    border-color: var(--color-gold-border);
    background-color: var(--bg-surface-hover);
}

.rg-step-num {
    font-size: 28px;
    font-weight: 600;
    color: var(--color-gold);
    line-height: 1;
    margin-bottom: 14px;
    opacity: 0.9;
}

.rg-step-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.rg-step-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.65;
    margin: 0;
}

/* ==========================================================================
   MODULE 7: Named International Client Cases
   ========================================================================== */
.rg-cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
@media (max-width: 991px) {
    .rg-cases-grid {
        grid-template-columns: 1fr;
    }
}

.rg-case-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 28px 22px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.rg-case-brand {
    font-size: 19px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.rg-case-loc {
    font-size: 12px;
    color: var(--color-gold);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.rg-case-quote {
    font-size: 14px;
    font-style: italic;
    line-height: 1.75;
    color: var(--text-secondary);
    margin-bottom: 20px;
    border-left: 2px solid var(--color-gold);
    padding-left: 14px;
}

.rg-case-meta {
    font-size: 12px;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    padding-top: 14px;
}
.rg-case-meta strong {
    color: var(--text-primary);
    display: block;
    margin-bottom: 2px;
}

/* ==========================================================================
   MODULE 8: Structured AEO / FAQ Accordion
   ========================================================================== */
.rg-faq-list {
    max-width: 1080px;
    margin: 0 auto;
}

.rg-faq-item {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    margin-bottom: 12px;
    transition: var(--transition-standard);
}
.rg-faq-item.active {
    border-color: var(--color-gold-border);
}

.rg-faq-question {
    padding: 18px 22px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
    gap: 12px;
}
@media (max-width: 576px) {
    .rg-faq-question {
        padding: 14px 16px;
        font-size: 14px;
    }
}

.rg-faq-icon {
    font-size: 18px;
    color: var(--color-gold);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}
.rg-faq-item.active .rg-faq-icon {
    transform: rotate(45deg);
}

.rg-faq-answer {
    display: none;
    padding: 0 22px 20px 22px;
    font-size: 14px;
    line-height: 1.75;
    color: var(--text-secondary);
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}
@media (max-width: 576px) {
    .rg-faq-answer {
        padding: 0 16px 16px 16px;
        font-size: 13px;
    }
}
.rg-faq-item.active .rg-faq-answer {
    display: block;
}

/* ==========================================================================
   MODULE 9: High-Converting Bottom CTA
   ========================================================================== */
.rg-bottom-cta {
    background: linear-gradient(180deg, var(--bg-alt) 0%, var(--bg-deep) 100%);
    border-top: 1px solid var(--border-color);
    padding: 80px 0;
    text-align: center;
}
@media (max-width: 768px) {
    .rg-bottom-cta {
        padding: 50px 0;
    }
}

.rg-cta-box {
    max-width: 860px;
    margin: 0 auto;
    background-color: var(--bg-surface);
    border: 1px solid var(--color-gold-border);
    padding: 44px 32px;
}
@media (max-width: 576px) {
    .rg-cta-box {
        padding: 28px 18px;
    }
}

/* ==========================================================================
   OFFICIAL BLOG RESOURCE CARDS
   ========================================================================== */
.rg-blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 28px;
}
@media (max-width: 991px) {
    .rg-blog-grid {
        grid-template-columns: 1fr;
    }
}

.rg-blog-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: var(--transition-standard);
    text-decoration: none;
}
.rg-blog-card:hover {
    border-color: var(--color-gold);
    transform: translateY(-4px);
}

.rg-blog-cover-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: var(--bg-deep);
    overflow: hidden;
}
.rg-blog-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.rg-blog-card:hover .rg-blog-cover {
    transform: scale(1.05);
}

.rg-blog-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    flex: 1;
}

.rg-blog-tag {
    font-size: 11px;
    font-weight: 600;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 8px;
}

.rg-blog-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 10px;
}

.rg-blog-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.rg-blog-read-more {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ==========================================================================
   HIGH-IMPACT VISUAL MEDIA FRAME PLACEHOLDERS (SEO & GEO Trust Nodes)
   ========================================================================== */
.rg-media-frame {
    margin: 32px 0;
    background-color: var(--bg-deep);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.rg-media-preview {
    width: 100%;
    aspect-ratio: 16 / 9;
    background: linear-gradient(135deg, #181819 0%, #252526 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px 20px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    position: relative;
}
.rg-media-preview.ratio-4-3 {
    aspect-ratio: 4 / 3;
}
.rg-media-preview:has(img) {
    padding: 0;
}
.rg-media-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.rg-media-badge {
    font-size: 10px;
    font-weight: 600;
    color: var(--color-gold);
    background-color: rgba(212, 172, 90, 0.12);
    border: 1px solid var(--color-gold-border);
    padding: 4px 10px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 12px;
}

.rg-media-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.rg-media-desc {
    font-size: 12px;
    color: var(--text-muted);
    max-width: 540px;
    line-height: 1.6;
    margin-bottom: 16px;
}

.rg-media-prompt-tag {
    background-color: rgba(0, 0, 0, 0.4);
    border: 1px dashed rgba(212, 172, 90, 0.3);
    padding: 6px 14px;
    font-size: 11px;
    font-family: monospace;
    color: var(--color-gold);
    max-width: 90%;
    word-break: break-all;
}

.rg-media-caption {
    padding: 10px 18px;
    font-size: 12px;
    color: var(--text-muted);
    background-color: var(--bg-surface);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

/* ==========================================================================
   BRAND DNA LINK SYSTEM, CATEGORY PILLS & NAV STRIP (Requirement R1)
   ========================================================================== */

/* Brand DNA Inline Text Deep Links */
.rg-link {
    color: #d4ac5a;
    text-decoration: none;
    border-bottom: 1px dotted rgba(212, 172, 90, 0.5);
    padding-bottom: 1px;
    transition: all 0.2s ease;
    font-weight: 500;
}
.rg-link:hover {
    color: #ffffff;
    border-bottom: 1px solid #d4ac5a;
    background-color: var(--color-gold-tint);
}

/* Brand DNA Category Pill Links */
.rg-category-pill,
.rg-pill-link {
    display: inline-block;
    background-color: #313233;
    color: #d4ac5a;
    border: 1px solid #d4ac5a;
    border-radius: 0px !important;
    padding: 6px 14px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-decoration: none;
    transition: all 0.2s ease;
}
.rg-category-pill:hover,
.rg-pill-link:hover {
    background-color: #d4ac5a;
    color: #131314;
}
.rg-category-pill.active,
.rg-pill-link.active {
    background-color: #d4ac5a;
    color: #131314;
}

/* Lateral Navigation Strip Component */
.rg-nav-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 24px 0;
    align-items: center;
}
.rg-nav-strip-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 1px;
}
.rg-nav-strip-links {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}
.rg-nav-strip-link {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    background-color: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 0px !important;
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 500;
    text-decoration: none !important;
    transition: all 0.2s ease;
}
.rg-nav-strip-link:hover {
    background-color: var(--color-gold-tint);
    border-color: var(--color-gold-border);
    color: #ffffff;
}
.rg-nav-strip-link.active {
    background-color: var(--bg-deep);
    border-color: var(--color-gold);
    color: var(--color-gold);
    font-weight: 600;
}

/* ==========================================================================
   MEDIA SPLIT GRID & RESPONSIVE RESTRUCTURING (Requirement R2)
   ========================================================================== */

/* Media Split Grid (2-column layout for side-by-side photo + technical specs) */
.rg-media-split-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: stretch;
    margin: 32px 0;
}
@media (max-width: 900px) {
    .rg-media-split-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* Tablet (768px - 1199px) Uniform Card Heights & Balanced Grids */
@media (min-width: 768px) and (max-width: 1199px) {
    .rg-gateway-card,
    .rg-step-card,
    .rg-case-card,
    .rg-blog-card,
    .rg-badge-card {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        height: 100%;
    }
    .rg-cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .rg-blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 2-Column Responsive Grid (.rg-grid-2) */
.rg-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
@media (max-width: 768px) {
    .rg-grid-2 {
        grid-template-columns: 1fr !important;
        gap: 16px;
    }
}

/* Magazine Case Study Card Image Styling */
.rg-case-img-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: var(--bg-deep);
    overflow: hidden;
    margin-bottom: 18px;
    border: 1px solid var(--border-color);
}
.rg-case-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.rg-case-card:hover .rg-case-img {
    transform: scale(1.04);
}

/* ==========================================================================
   STANDARDIZED SOURCING MESH COMPONENT (.rg-sourcing-mesh)
   Brand DNA: #d4ac5a Gold | #313233 Surface | 0px Radius Strictly | 0 Blue Links
   ========================================================================== */

.rg-sourcing-mesh {
    margin-top: 48px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color, rgba(255, 255, 255, 0.10));
    text-align: left;
    width: 100%;
}

.rg-sourcing-mesh-header {
    margin-bottom: 24px;
}

.rg-sourcing-mesh-header .rg-eyebrow {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-gold, #d4ac5a);
    display: inline-block;
    margin-bottom: 8px;
}

.rg-sourcing-mesh-title {
    font-size: clamp(16px, 2.5vw, 22px);
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary, #ffffff);
    margin: 0 0 8px 0;
}

.rg-sourcing-mesh-desc {
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-muted, rgba(255, 255, 255, 0.52));
    margin: 0;
    max-width: 900px;
}

/* 5-Node Responsive Grid */
.rg-sourcing-mesh-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    margin-top: 20px;
}

@media (max-width: 1200px) {
    .rg-sourcing-mesh-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 14px;
    }
}

@media (max-width: 768px) {
    .rg-sourcing-mesh-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .rg-sourcing-mesh-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
}

/* Individual Mesh Card */
.rg-mesh-card {
    background-color: var(--bg-surface, #313233);
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.10));
    border-radius: 0px !important;
    padding: 20px 16px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition-standard, all 0.35s cubic-bezier(0.19, 1, 0.22, 1));
    position: relative;
    box-sizing: border-box;
}

.rg-mesh-card:hover {
    border-color: var(--color-gold, #d4ac5a);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
}

.rg-mesh-card.is-active {
    border: 1px solid var(--color-gold, #d4ac5a);
    background-color: rgba(212, 172, 90, 0.08);
}

/* District / Hierarchy Badge */
.rg-mesh-badge {
    display: inline-block;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-gold, #d4ac5a);
    background-color: var(--color-gold-tint, rgba(212, 172, 90, 0.12));
    padding: 2px 8px;
    margin-bottom: 12px;
    border: 1px solid var(--color-gold-border, rgba(212, 172, 90, 0.35));
    border-radius: 0px !important;
    align-self: flex-start;
}

.rg-mesh-badge.is-active {
    background-color: var(--color-gold, #d4ac5a);
    color: #131314;
    border-color: var(--color-gold, #d4ac5a);
}

.rg-mesh-card-title {
    font-size: 14px;
    font-weight: 600;
    color: #ffffff;
    margin: 0 0 8px 0;
    line-height: 1.35;
}

.rg-mesh-card-desc {
    font-size: 12px;
    line-height: 1.55;
    color: var(--text-muted, rgba(255, 255, 255, 0.65));
    margin: 0 0 16px 0;
    flex-grow: 1;
}

/* Bi-directional Action Link (Preserves '→ ' prefix for CDP test compliance) */
.rg-mesh-link {
    display: inline-flex;
    align-items: center;
    font-size: 12px;
    font-weight: 500;
    color: var(--color-gold, #d4ac5a) !important;
    text-decoration: none !important;
    border-bottom: 1px dotted var(--link-underline, rgba(212, 172, 90, 0.5));
    transition: all 0.2s ease;
    padding-bottom: 2px;
    align-self: flex-start;
    border-radius: 0px !important;
}

.rg-mesh-link:hover {
    color: #ffffff !important;
    border-bottom: 1px solid #ffffff;
}

.rg-mesh-link.is-active {
    font-weight: 600;
    border-bottom: 1px solid var(--color-gold, #d4ac5a);
}

/* ==========================================================================
   PORTAL HEADER COMPONENT (#rg-portal-header)
   ========================================================================== */
#rg-portal-header {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 99999;
    background: rgba(26, 26, 27, 0.98);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    font-family: 'Poppins', sans-serif;
    transition: all 0.3s ease;
}

.rg-header-inner {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 40px;
    height: 7rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.rg-header-logo img {
    height: 38px;
    display: block;
    border: none;
}

.rg-header-nav {
    display: flex;
    align-items: center;
}

.rg-nav-list {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 1.4rem;
}

.rg-nav-list > li {
    position: relative;
    text-align: center;
}

.rg-nav-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.92rem;
    color: #ffffff !important;
    line-height: 7rem;
    text-transform: uppercase;
    text-decoration: none !important;
    font-weight: 500;
    padding: 0 4px;
    letter-spacing: 0.04em;
    transition: color 0.25s ease;
    cursor: pointer;
    border: none !important;
}

.rg-nav-link i {
    font-size: 11px;
    transition: transform 0.25s;
}

.rg-nav-list > li:hover > .rg-nav-link {
    color: var(--color-gold, #d4ac5a) !important;
}

.rg-nav-list > li:hover > .rg-nav-link i {
    transform: rotate(180deg);
}

/* 5专题专属导航高亮项 */
.rg-nav-highlight > .rg-nav-link {
    color: var(--color-gold, #d4ac5a) !important;
    font-weight: 600;
}

.rg-nav-badge {
    background: var(--color-gold, #d4ac5a);
    color: #121213;
    font-size: 9px;
    font-weight: 700;
    padding: 2px 6px;
    margin-left: 4px;
    letter-spacing: 0.06em;
    border-radius: 0px;
    display: inline-block;
    line-height: 1;
}

/* 5专题专属下沉式快速切换下拉菜单 */
.rg-nav-dropdown-menu {
    position: absolute;
    top: calc(7rem - 3px);
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    min-width: 360px;
    background: #1a1a1b;
    border: 1px solid rgba(212, 172, 90, 0.35);
    border-top: 2px solid var(--color-gold, #d4ac5a);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.85);
    padding: 16px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    z-index: 999999;
    text-align: left;
}

/* 隐形吸附桥 (Invisible Bridge) */
.rg-nav-dropdown-menu::before {
    content: "";
    position: absolute;
    top: -16px;
    left: -10px;
    width: calc(100% + 20px);
    height: 18px;
    background: transparent;
    z-index: -1;
}

.rg-nav-list > li:hover .rg-nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.rg-dropdown-eyebrow {
    display: block;
    font-size: 10px;
    font-weight: 700;
    color: var(--color-gold, #d4ac5a);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 10px;
    padding-bottom: 6px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.rg-dropdown-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 12px;
    text-decoration: none !important;
    transition: all 0.2s ease;
    border-left: 2px solid transparent;
    margin-bottom: 4px;
    border-radius: 0px !important;
}

.rg-dropdown-item:hover {
    background: rgba(212, 172, 90, 0.08);
    border-left-color: var(--color-gold, #d4ac5a);
    padding-left: 16px;
}

.rg-dropdown-item.is-active {
    background: rgba(212, 172, 90, 0.12);
    border-left-color: var(--color-gold, #d4ac5a);
}

.rg-item-icon {
    font-size: 16px;
    line-height: 1.2;
    flex-shrink: 0;
    margin-top: 2px;
}

.rg-item-title {
    font-size: 13px;
    font-weight: 600;
    color: #ffffff;
    line-height: 1.35;
    margin-bottom: 3px;
    transition: color 0.2s;
}

.rg-dropdown-item:hover .rg-item-title,
.rg-dropdown-item.is-active .rg-item-title {
    color: var(--color-gold, #d4ac5a);
}

.rg-item-desc {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.4;
}

/* Header 右侧动作区 */
.rg-header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.rg-btn-factory {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: transparent;
    color: var(--color-gold, #d4ac5a) !important;
    border: 1px solid var(--color-gold, #d4ac5a) !important;
    padding: 8px 16px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-decoration: none !important;
    transition: all 0.25s ease;
    border-radius: 0px !important;
}

.rg-btn-factory:hover {
    background: var(--color-gold, #d4ac5a);
    color: #121213 !important;
}

.rg-mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    flex-direction: column;
    gap: 5px;
}

.rg-mobile-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: #ffffff;
    transition: all 0.25s ease;
}

/* ==========================================================================
   PORTAL FOOTER COMPONENT (#rg-portal-footer)
   ========================================================================== */
#rg-portal-footer {
    background: #141415;
    color: #ffffff;
    font-family: 'Poppins', sans-serif;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.rg-foot-props {
    background: #181819;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding: 24px 0;
}

.rg-props-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.rg-props-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
}

.rg-props-list li i {
    font-size: 22px;
    color: var(--color-gold, #d4ac5a);
}

.rg-foot-main {
    padding: 60px 0 30px;
}

.rg-foot-cols {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1.3fr 1.2fr;
    gap: 40px;
    margin-bottom: 50px;
}

.rg-foot-brand img {
    height: 36px;
    margin-bottom: 18px;
    display: block;
}

.rg-foot-brand p {
    font-size: 12px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 18px;
}

.rg-foot-contact-pills {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.rg-foot-contact-pills a {
    color: var(--color-gold, #d4ac5a) !important;
    text-decoration: none !important;
    font-size: 12px;
    font-weight: 500;
    transition: color 0.2s;
}

.rg-foot-contact-pills a:hover {
    color: #ffffff !important;
}

.rg-foot-links-col h5 {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: #ffffff;
    margin: 0 0 18px 0;
    text-transform: uppercase;
    position: relative;
    padding-bottom: 8px;
}

.rg-foot-links-col h5::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 24px;
    height: 2px;
    background: var(--color-gold, #d4ac5a);
}

.rg-foot-links-col ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.rg-foot-links-col ul li {
    margin-bottom: 10px;
}

.rg-foot-links-col ul li a {
    color: rgba(255, 255, 255, 0.65) !important;
    text-decoration: none !important;
    font-size: 12px;
    transition: all 0.2s ease;
    display: inline-block;
}

.rg-foot-links-col ul li a:hover {
    color: var(--color-gold, #d4ac5a) !important;
    transform: translateX(4px);
}

.rg-foot-address {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.6;
    margin-bottom: 16px;
}

.rg-foot-social {
    display: flex;
    gap: 12px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.rg-foot-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    background: #212122;
    color: #ffffff !important;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.25s ease;
}

.rg-foot-social a:hover {
    background: var(--color-gold, #d4ac5a);
    color: #121213 !important;
    border-color: var(--color-gold, #d4ac5a);
}

.rg-foot-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    flex-wrap: wrap;
    gap: 14px;
}

.rg-legal-links {
    display: flex;
    gap: 20px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.rg-legal-links a {
    color: rgba(255, 255, 255, 0.5) !important;
    text-decoration: none !important;
    transition: color 0.2s;
}

.rg-legal-links a:hover {
    color: var(--color-gold, #d4ac5a) !important;
}

/* ==========================================================================
   MOBILE RESPONSIVENESS
   ========================================================================== */
@media (max-width: 1024px) {
    .rg-header-inner {
        height: 5rem;
        padding: 0 20px;
    }
    .rg-header-nav {
        display: none;
    }
    .rg-mobile-toggle {
        display: flex;
    }
    .rg-btn-factory span {
        display: none;
    }
    .rg-props-list {
        grid-template-columns: repeat(2, 1fr);
    }
    .rg-foot-cols {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .rg-props-list {
        grid-template-columns: 1fr;
    }
    .rg-foot-cols {
        grid-template-columns: 1fr;
    }
}