/* ===== CSS Variables & Reset ===== */
:root {
    --primary: #1a56db;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary: #059669;
    --accent: #f59e0b;
    --dark: #111827;
    --gray-900: #1f2937;
    --gray-800: #374151;
    --gray-700: #4b5563;
    --gray-600: #6b7280;
    --gray-500: #9ca3af;
    --gray-400: #d1d5db;
    --gray-300: #e5e7eb;
    --gray-200: #f3f4f6;
    --gray-100: #f9fafb;
    --white: #ffffff;
    --gradient-primary: linear-gradient(135deg, #1a56db 0%, #3b82f6 100%);
    --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #1a1a2e 100%);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px -3px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 40px -5px rgba(0,0,0,0.15);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--gray-800);
    line-height: 1.7;
    background: var(--white);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: var(--radius-sm);
    font-size: 0.938rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    font-family: inherit;
    line-height: 1.5;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    border-color: transparent;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(26, 86, 219, 0.35);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}
.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-white {
    background: var(--white);
    color: var(--primary);
    border-color: var(--white);
}
.btn-white:hover {
    background: transparent;
    color: var(--white);
}

.btn-outline-white {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.5);
}
.btn-outline-white:hover {
    background: rgba(255,255,255,0.15);
    border-color: var(--white);
}

.btn-text {
    color: var(--primary);
    padding: 0;
    font-weight: 500;
}
.btn-text:hover { gap: 6px; }

.btn-sm { padding: 8px 16px; font-size: 0.875rem; }
.btn-lg { padding: 14px 32px; font-size: 1rem; }
.btn-full { width: 100%; justify-content: center; }

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    transition: var(--transition);
}
.navbar.scrolled {
    background: rgba(255,255,255,0.95);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    color: var(--primary);
}
.logo-icon svg { width: 100%; height: 100%; }

.logo-text { display: flex; flex-direction: column; }
.logo-main { font-size: 1.1rem; font-weight: 700; color: var(--dark); line-height: 1.2; }
.logo-sub { font-size: 0.65rem; color: var(--gray-600); letter-spacing: 1px; font-weight: 500; }

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    padding: 8px 14px;
    font-size: 0.9rem;
    color: var(--gray-700);
    border-radius: var(--radius-sm);
    font-weight: 500;
    position: relative;
}
.nav-link:hover, .nav-link.active { color: var(--primary); }
.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--gray-800);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 72px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 60% at 70% 40%, rgba(59, 130, 246, 0.15), transparent),
        radial-gradient(ellipse 60% 50% at 20% 60%, rgba(16, 185, 129, 0.1), transparent);
}

.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content { color: var(--white); }

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50px;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.9);
    margin-bottom: 28px;
    backdrop-filter: blur(10px);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.text-gradient {
    background: linear-gradient(135deg, #60a5fa, #34d399, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.05rem;
    line-height: 1.8;
    color: rgba(255,255,255,0.75);
    margin-bottom: 36px;
    max-width: 540px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 56px;
}

.hero-buttons .btn-primary {
    background: linear-gradient(135deg, #3b82f6, #6366f1);
    padding: 14px 32px;
    font-size: 1rem;
}
.hero-buttons .btn-outline {
    background: rgba(255,255,255,0.1);
    color: var(--white);
    border-color: rgba(255,255,255,0.3);
    padding: 14px 32px;
    font-size: 1rem;
}
.hero-buttons .btn-outline:hover {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.5);
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 28px;
}

.stat-item { text-align: center; }
.stat-number {
    font-size: 2rem;
    font-weight: 800;
    display: block;
    background: linear-gradient(135deg, #60a5fa, #34d399);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.stat-label {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.6);
    display: block;
    margin-top: 2px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255,255,255,0.15);
}

/* Hero Visual Cards */
.hero-visual {
    position: relative;
    height: 500px;
}

.hero-card {
    position: absolute;
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 14px;
    color: var(--white);
    animation: float 6s ease-in-out infinite;
}

.hero-card .card-icon { font-size: 2rem; }
.hero-card .card-text { font-weight: 600; font-size: 0.95rem; }

.hero-card-1 { top: 15%; left: 10%; animation-delay: 0s; }
.hero-card-2 { top: 15%; right: 10%; animation-delay: 1.5s; }
.hero-card-3 { bottom: 25%; left: 10%; animation-delay: 3s; }
.hero-card-4 { bottom: 25%; right: 10%; animation-delay: 4.5s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.5);
    font-size: 0.8rem;
    z-index: 1;
}
.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid rgba(255,255,255,0.4);
    border-bottom: 2px solid rgba(255,255,255,0.4);
    transform: rotate(45deg);
    animation: scroll-bounce 2s infinite;
}
@keyframes scroll-bounce {
    0%, 100% { transform: rotate(45deg) translate(0,0); opacity: 0.4; }
    50% { transform: rotate(45deg) translate(5px,5px); opacity: 1; }
}

/* ===== Section Shared ===== */
.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(26, 86, 219, 0.08);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-title {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--dark);
    line-height: 1.3;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== About ===== */
.about { background: var(--gray-100); }

.about-grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 40px;
    align-items: start;
}

.about-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-300);
    margin-bottom: 24px;
}
.about-card h3 {
    font-size: 1.3rem;
    color: var(--dark);
    margin-bottom: 16px;
}
.about-card p {
    color: var(--gray-700);
    line-height: 1.8;
    margin-bottom: 12px;
}
.about-card p:last-child { margin-bottom: 0; }

.about-mission { display: flex; flex-direction: column; gap: 16px; }

.mission-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-300);
}
.mission-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: rgba(26, 86, 219, 0.08);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}
.mission-icon svg { width: 24px; height: 24px; }
.mission-item h4 { font-size: 1rem; color: var(--dark); margin-bottom: 4px; }
.mission-item p { font-size: 0.9rem; color: var(--gray-600); }

.sidebar-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-300);
}
.sidebar-card h4 {
    font-size: 1.1rem;
    color: var(--dark);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--gray-200);
}

.business-list { display: flex; flex-direction: column; gap: 16px; }
.business-list li {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}
.business-icon { font-size: 1.5rem; margin-top: 2px; }
.business-list strong { display: block; color: var(--dark); font-size: 0.95rem; }
.business-list p { font-size: 0.85rem; color: var(--gray-600); margin-top: 2px; }

/* ===== Research ===== */
.research-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.research-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-300);
    transition: var(--transition);
    text-align: center;
}
.research-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.research-icon {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}
.research-icon svg { width: 32px; height: 32px; }

.research-card h3 {
    font-size: 1.1rem;
    color: var(--dark);
    margin-bottom: 10px;
}
.research-card p {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 16px;
}
.research-link {
    font-size: 0.9rem;
    color: var(--primary);
    font-weight: 500;
}

/* ===== Experts ===== */
.experts { background: var(--gray-100); }

.experts-filter {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    border: 2px solid var(--gray-300);
    border-radius: 50px;
    background: var(--white);
    color: var(--gray-700);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}
.filter-btn:hover, .filter-btn.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.experts-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.expert-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 28px 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-300);
    text-align: center;
    transition: var(--transition);
}
.expert-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.expert-avatar {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto 16px;
}
.avatar-placeholder {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 700;
}
.expert-status {
    position: absolute;
    bottom: 4px;
    right: 4px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 3px solid var(--white);
}
.expert-status.online { background: #10b981; }
.expert-status.away { background: #f59e0b; }

.expert-info h4 { font-size: 1rem; color: var(--dark); margin-bottom: 4px; }
.expert-title {
    display: inline-block;
    padding: 2px 10px;
    background: rgba(26, 86, 219, 0.08);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 500;
    margin-bottom: 8px;
}
.expert-specialty { font-size: 0.85rem; color: var(--gray-600); margin-bottom: 8px; }

.expert-rating { margin-bottom: 8px; }
.stars { color: #f59e0b; font-size: 0.85rem; }
.rating-num { font-size: 0.85rem; color: var(--gray-600); margin-left: 4px; }

.expert-price {
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 16px;
}

.experts-cta {
    text-align: center;
    padding: 32px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-300);
}
.experts-cta p { margin-bottom: 16px; color: var(--gray-700); }

/* ===== Reports ===== */
.reports-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
}

.tab-btn {
    padding: 10px 24px;
    border: none;
    border-radius: 50px;
    background: var(--gray-200);
    color: var(--gray-700);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}
.tab-btn:hover, .tab-btn.active {
    background: var(--primary);
    color: var(--white);
}

.reports-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.report-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-300);
    transition: var(--transition);
    position: relative;
}
.report-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.report-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 600;
    z-index: 1;
}
.report-badge.free { background: #10b981; color: var(--white); }
.report-badge.vip { background: #f59e0b; color: var(--white); }

.report-content { padding: 24px; }

.report-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}
.report-category {
    padding: 2px 10px;
    background: rgba(26, 86, 219, 0.08);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 500;
}
.report-date { font-size: 0.85rem; color: var(--gray-500); }

.report-card h4 {
    font-size: 1.05rem;
    color: var(--dark);
    line-height: 1.5;
    margin-bottom: 8px;
}
.report-card p {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.report-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--gray-200);
}
.report-stats { display: flex; gap: 16px; font-size: 0.85rem; color: var(--gray-500); }

.reports-cta { text-align: center; }

/* ===== Services ===== */
.services { background: var(--gray-100); }

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-300);
    transition: var(--transition);
    position: relative;
    text-align: center;
}
.service-card.featured {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: scale(1.02);
}

.service-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 16px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
}

.service-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: rgba(26, 86, 219, 0.08);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}
.service-icon svg { width: 32px; height: 32px; }

.service-card h3 {
    font-size: 1.2rem;
    color: var(--dark);
    margin-bottom: 12px;
}
.service-card p {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 20px;
}

.service-features {
    text-align: left;
    margin-bottom: 24px;
}
.service-features li {
    padding: 8px 0;
    font-size: 0.9rem;
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: 8px;
}
.service-features li::before {
    content: '✓';
    color: var(--secondary);
    font-weight: 700;
}

/* ===== News ===== */
.news-grid {
    display: grid;
    grid-template-columns: 1fr repeat(3, 1fr);
    gap: 24px;
}

.main-news {
    grid-row: span 2;
}

.news-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-300);
    transition: var(--transition);
}
.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.news-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary), #6366f1);
    display: flex;
    align-items: center;
    justify-content: center;
}
.news-image-placeholder { font-size: 4rem; }

.main-news .news-image { height: 100%; min-height: 240px; }

.news-content { padding: 24px; }
.news-category {
    display: inline-block;
    padding: 2px 10px;
    background: rgba(26, 86, 219, 0.08);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 500;
    margin-bottom: 10px;
}
.news-card h3, .news-card h4 {
    color: var(--dark);
    line-height: 1.5;
    margin-bottom: 10px;
}
.news-card h3 { font-size: 1.2rem; }
.news-card h4 { font-size: 1rem; }

.news-card p {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-meta {
    display: flex;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--gray-500);
}

/* ===== CTA Section ===== */
.cta-section {
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-content {
    position: relative;
    text-align: center;
    color: var(--white);
    z-index: 1;
}
.cta-content h2 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 12px;
}
.cta-content p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* ===== Contact ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.contact-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.contact-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 24px 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-300);
    text-align: center;
}
.contact-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 12px;
    background: rgba(26, 86, 219, 0.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}
.contact-icon svg { width: 24px; height: 24px; }

.contact-card h4 {
    font-size: 1rem;
    color: var(--dark);
    margin-bottom: 8px;
}
.contact-card p {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.6;
}

.contact-form-wrapper { width: 100%; }

.contact-form {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-300);
}
.contact-form h3 {
    font-size: 1.3rem;
    color: var(--dark);
    margin-bottom: 24px;
}

.form-group { margin-bottom: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--white);
    color: var(--gray-800);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
}
.form-group textarea { resize: vertical; }

/* ===== Footer ===== */
.footer {
    background: var(--dark);
    color: rgba(255,255,255,0.8);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    color: var(--white);
    font-size: 1.2rem;
    font-weight: 700;
}
.footer-logo .logo-icon {
    width: 36px;
    height: 36px;
    color: var(--white);
}

.footer-about p {
    font-size: 0.9rem;
    line-height: 1.7;
    opacity: 0.7;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 12px;
}
.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.7);
    transition: var(--transition);
}
.footer-social a:hover {
    background: var(--primary);
    color: var(--white);
}
.footer-social svg { width: 18px; height: 18px; }

.footer-links h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 20px;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a {
    font-size: 0.9rem;
    opacity: 0.7;
}
.footer-links a:hover { opacity: 1; color: var(--white); }

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.6;
}
.footer-bottom p { margin-bottom: 4px; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-desc { margin: 0 auto 36px; }
    .hero-buttons { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-visual { display: none; }
    
    .about-grid { grid-template-columns: 1fr; }
    .research-grid { grid-template-columns: repeat(2, 1fr); }
    .experts-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid { grid-template-columns: 1fr 1fr; }
    .main-news { grid-column: span 2; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .section { padding: 64px 0; }
    .section-title { font-size: 1.8rem; }
    .hero-title { font-size: 2.2rem; }
    
    .nav-links, .nav-actions { display: none; }
    .mobile-menu-btn { display: flex; }
    
    .mobile-menu-open .nav-links {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        padding: 16px;
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--gray-300);
    }
    
    .research-grid { grid-template-columns: 1fr; }
    .experts-grid { grid-template-columns: 1fr; }
    .reports-grid { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: 1fr; }
    .service-card.featured { transform: none; }
    .news-grid { grid-template-columns: 1fr; }
    .main-news { grid-column: span 1; }
    .contact-grid { grid-template-columns: 1fr; }
    .contact-info { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero-stats { flex-wrap: wrap; gap: 16px; }
    .stat-divider { display: none; }
}

@media (max-width: 480px) {
    .hero-buttons { flex-direction: column; align-items: center; }
    .cta-buttons { flex-direction: column; align-items: center; }
    .form-row { grid-template-columns: 1fr; }
}