html, body { overflow-x: hidden; }

.hero-zone {
    padding: 190px 0 130px;
    background: url('../picture/breadcrumbs-bg2.jpg') center/cover no-repeat;
    position: relative;
    overflow: hidden;
}
.hero-zone::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(13, 33, 55, 0.9) 0%, rgba(26, 54, 93, 0.85) 100%);
}
.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}
.hero-content h1 {
    font-family: 'Georgia', serif;
    font-size: 60px;
    color: #ffffff;
    margin-bottom: 32px;
    line-height: 1.08;
}
.hero-content p {
    color: rgba(255, 255, 255, 0.82);
    font-size: 19px;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.9;
}

.intro-section {
    padding: 120px 0;
    background: #ffffff;
    position: relative;
}
.intro-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 8px;
    background: linear-gradient(90deg, #1a365d, #d4a853, #1a365d);
}
.intro-section p {
    font-size: 19px;
    line-height: 2;
    max-width: 950px;
    margin: 0 auto;
    color: #4a5568;
    text-align: center;
}

.courses-section {
    padding: 140px 0;
    background: linear-gradient(180deg, #f8fafc 0%, #f7fafc 100%);
}
.courses-section .section-title { margin-bottom: 72px; }
.courses-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 48px;
}
.course-card {
    background: #ffffff;
    border-radius: 28px;
    overflow: hidden;
    box-shadow: 0 14px 50px rgba(0,0,0,0.05);
    border: 1px solid #edf2f7;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}
.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, #1a365d, #d4a853);
}
.course-card:hover { box-shadow: 0 30px 80px rgba(13, 33, 55, 0.15); transform: translateY(-12px); }
.course-image { height: 260px; overflow: hidden; position: relative; }
.course-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 110px;
    background: linear-gradient(0deg, rgba(13,33,55,0.7) 0%, transparent 100%);
}
.course-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.7s ease; }
.course-card:hover .course-image img { transform: scale(1.12); }
.course-body { padding: 44px; }
.course-badge {
    display: inline-block;
    padding: 12px 24px;
    background: rgba(26, 54, 93, 0.08);
    color: #1a365d;
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    border-radius: 10px;
    margin-bottom: 24px;
    border: 1px solid rgba(26, 54, 93, 0.15);
}
.course-title {
    font-family: 'Georgia', serif;
    font-size: 24px;
    color: #0d2137;
    margin-bottom: 16px;
    font-weight: 700;
    line-height: 1.4;
}
.course-desc {
    color: #4a5568;
    font-size: 15px;
    line-height: 1.85;
    margin: 0;
}

.site-footer {
    background: #0a1a2c;
    padding: 90px 0 36px;
    color: #ffffff;
    border-top: 8px solid #d4a853;
}
.footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 56px; margin-bottom: 56px; }
.footer-logo img { height: 58px; margin-bottom: 28px; }
.footer-about p { color: rgba(255, 255, 255, 0.55); line-height: 1.9; font-size: 14px; }
.footer-col h4 {
    color: #d4a853;
    margin-bottom: 28px;
    font-size: 15px;
    font-family: 'Georgia', serif;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.footer-col ul { list-style: none; padding: 0; }
.footer-col li { margin-bottom: 16px; }
.footer-col a { color: rgba(255, 255, 255, 0.55); text-decoration: none; transition: all 0.3s ease; font-size: 14px; }
.footer-col a:hover { color: #d4a853; padding-left: 8px; }
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 36px;
    text-align: center;
    color: rgba(255, 255, 255, 0.35);
    font-size: 13px;
}

@media (max-width: 767px) {
    .hero-content h1 { font-size: 40px; }
    .courses-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
}
@media (min-width: 768px) and (max-width: 991px) {
    .courses-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}