/* =========================================
   Mobile Styles (<767px) - Premium Edition
   File: css/mobile/research/boarding.css
   ========================================= */

/* --- Hero Section - Mobile Premium --- */
.research-hero {
    position: relative;
    padding: 110px 0 40px !important;
    /* Matches K12 final aggressive positioning */
    margin-top: -56px;
    /* Pull under nav */
    background: linear-gradient(135deg, #0a1128 0%, #1e293b 50%, #0a1128 100%);
    color: white;
    text-align: center;
    overflow: hidden;
    height: auto !important;
    min-height: auto !important;
    display: block !important;
}

.hero-overlay {
    display: none;
}

.research-hero::before {
    content: '';
    position: absolute;
    top: -20%;
    left: -20%;
    width: 140%;
    height: 120%;
    background:
        radial-gradient(circle at 80% 20%, rgba(30, 58, 138, 0.5) 0%, transparent 60%),
        radial-gradient(circle at 20% 80%, rgba(203, 161, 116, 0.2) 0%, transparent 60%),
        radial-gradient(ellipse at 50% 50%, rgba(203, 161, 116, 0.1) 0%, transparent 70%),
        linear-gradient(180deg, rgba(10, 17, 40, 0.9) 0%, #0a1128 100%);
    z-index: 0;
    animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% {
        opacity: 0.8;
        filter: brightness(1);
    }

    100% {
        opacity: 1;
        filter: brightness(1.1);
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 0 20px;
}

.hero-tag {
    display: inline-block;
    color: #cba174;
    font-size: 0.70rem;
    letter-spacing: 2px;
    margin-bottom: 20px;
    white-space: normal;
    border: 1px solid rgba(203, 161, 116, 0.3);
    padding: 8px 16px;
    border-radius: 30px;
    background: rgba(203, 161, 116, 0.1);
    backdrop-filter: blur(10px);
    font-weight: 600;
    font-family: 'Noto Serif SC', serif;
    text-transform: uppercase;
}

.research-hero h1 {
    position: relative;
    z-index: 1;
    font-size: 1.6rem !important;
    line-height: 1.4 !important;
    margin-bottom: 20px;
    font-family: 'Noto Serif SC', serif;
    font-weight: 700;
    background: linear-gradient(to bottom, #ffffff 0%, #e2e8f0 40%, #cba174 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 30px;
    font-size: 0.95rem;
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

.hero-cta {
    margin-top: 20px;
}

.btn-primary {
    display: inline-block;
    padding: 14px 40px !important;
    background: linear-gradient(135deg, #cba174 0%, #d97706 100%) !important;
    color: #0a1128 !important;
    font-weight: 700 !important;
    text-decoration: none;
    border-radius: 6px !important;
    font-size: 1rem !important;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
}

/* --- Section Headers --- */
.section-header {
    margin-bottom: 30px;
    text-align: center;
    padding: 0 15px;
}

.section-header h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.8rem;
    color: #0f172a;
    margin-bottom: 12px;
    font-weight: 700;
    line-height: 1.3;
}

.section-header p.subtitle {
    font-family: 'Noto Sans SC', sans-serif;
    color: #64748b;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-top: 15px;
}

/* --- Academic Section (Insight) - Mobile --- */
.academic-section {
    padding: 40px 0;
    background: linear-gradient(to bottom, #ffffff 0%, #f8fafc 50%, #ffffff 100%);
}

.academic-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 30px;
    padding: 0 20px;
}

.academic-card {
    background: #ffffff;
    border-radius: 8px;
    padding: 28px 24px;
    border: 1px solid rgba(226, 232, 240, 0.8);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.card-number {
    font-size: 2rem;
    margin-bottom: 10px;
    color: #e2e8f0;
    font-family: 'Noto Serif SC', serif;
    font-weight: 700;
}

.academic-card h3 {
    font-size: 1.25rem;
    color: #1e3a8a;
    margin-bottom: 10px;
    font-family: 'Noto Serif SC', serif;
    font-weight: 700;
}

.academic-card p {
    font-size: 0.95rem;
    color: #64748b;
    line-height: 1.6;
    margin: 0;
}

/* --- Solution Section (Ecosystem) - Mobile Layout --- */
.solution-section {
    padding: 40px 0;
    background: linear-gradient(to bottom, #ffffff 0%, #f8fafc 100%);
}

.solution-row {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 50px;
    padding: 0 20px;
}

.solution-row.reverse {
    flex-direction: column;
}

/* Text Top, Image Bottom Layout Enforcement */
.solution-row .solution-visual,
.solution-row.reverse .solution-visual {
    order: 2;
    /* Image Bottom */
    width: 100%;
    height: 200px;
    border-radius: 12px;
    margin-bottom: 15px;
    box-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.1);
}

.solution-row .solution-text,
.solution-row.reverse .solution-text {
    order: 1;
    /* Text Top */
}

.solution-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    color: #cba174;
    text-transform: uppercase;
    letter-spacing: 2px;
    padding: 6px 16px;
    border: 1px solid rgba(203, 161, 116, 0.3);
    border-radius: 20px;
    background: rgba(203, 161, 116, 0.08);
    margin-bottom: 15px;
}

.solution-text h3 {
    font-size: 1.4rem;
    font-family: 'Noto Serif SC', serif;
    color: #0f172a;
    margin-bottom: 15px;
    font-weight: 700;
}

.solution-text p {
    font-size: 0.95rem;
    color: #64748b;
    line-height: 1.6;
    margin: 0;
}

.visual-content {
    display: none;
}

/* Visual Backgrounds */
.visual-gold {
    background: linear-gradient(135deg, #b45309 0%, #d97706 50%, #fbbf24 100%);
}

.visual-blue {
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 50%, #60a5fa 100%);
}

.visual-dark {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #475569 100%);
}

/* --- Cooperation Section (Vision) - Mobile --- */
.new-coop-section {
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 50%, #f8fafc 100%) !important;
    padding: 60px 0;
    text-align: center;
}

.new-coop-content {
    padding: 0 20px;
}

.new-coop-content h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: #0f172a;
    font-weight: 700;
}

.new-coop-content p {
    color: #475569;
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 30px;
}