/**
 * ============================================================================
 * 首页专属样式 - 暗金轻奢主题
 * ============================================================================
 * 包含: Hero区域、课程展示、导师展示、训练营、直播、特色服务、CTA
 * ============================================================================
 */

/* ==========================================================================
   Hero区域
   ========================================================================== */
.hero-section {
    position: relative;
    min-height: calc(100vh - var(--header-height));
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #0A0E14 0%, #161B22 50%, #0D1117 100%);
    overflow: hidden;
    padding: 80px 0 120px;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(201, 169, 110, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(201, 169, 110, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-container {
    position: relative;
    z-index: 1;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.hero-title .gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-actions .btn {
    padding: 16px 32px;
    font-size: 1rem;
    font-weight: 600;
}

.hero-actions .btn-lg {
    height: auto;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(201, 169, 110, 0.15));
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    line-height: 0;
}

.hero-wave svg {
    width: 100%;
    height: auto;
    display: block;
}

/* ==========================================================================
   通用区块样式
   ========================================================================== */
.section {
    padding: 80px 0;
}

.section-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 48px;
}

.section-header.center {
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.section-title-wrapper {
    max-width: 500px;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* ==========================================================================
   课程区块
   ========================================================================== */
.section-courses {
    background: var(--bg-secondary);
}

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

.course-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(201, 169, 110, 0.3);
}

.course-image {
    position: relative;
    height: 160px;
    overflow: hidden;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.course-card:hover .course-image img {
    transform: scale(1.05);
}

.course-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 500;
    color: var(--primary-color);
    background: rgba(201, 169, 110, 0.15);
    border: 1px solid rgba(201, 169, 110, 0.3);
    border-radius: var(--radius-full);
}

.course-content {
    padding: 20px;
}

.course-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.course-meta i {
    color: var(--primary-color);
    margin-right: 4px;
}

.course-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.course-price .price-current {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.course-price .price-original {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-decoration: line-through;
    margin-left: 8px;
}

.course-price .price-free {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--success-color);
}

/* ==========================================================================
   导师区块
   ========================================================================== */
.section-mentors {
    background: var(--bg-primary);
}

.mentor-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.mentor-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.mentor-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(201, 169, 110, 0.3);
}

.mentor-header {
    position: relative;
    display: inline-block;
    margin-bottom: 20px;
}

.mentor-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-color);
}

.mentor-badge {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 28px;
    height: 28px;
    background: var(--success-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 12px;
}

.mentor-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.mentor-title {
    font-size: 0.875rem;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.mentor-stats {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 16px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.mentor-stats i {
    color: var(--primary-color);
    margin-right: 4px;
}

.mentor-bio {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.mentor-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.mentor-price {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* ==========================================================================
   训练营区块
   ========================================================================== */
.section-camps {
    background: var(--bg-secondary);
}

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

.camp-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
}

.camp-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(201, 169, 110, 0.3);
}

.camp-image {
    position: relative;
    height: 140px;
    overflow: hidden;
}

.camp-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.camp-card:hover .camp-image img {
    transform: scale(1.05);
}

.camp-status {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 500;
    border-radius: var(--radius-full);
}

.camp-status.upcoming {
    color: var(--primary-color);
    background: rgba(201, 169, 110, 0.15);
    border: 1px solid rgba(201, 169, 110, 0.3);
}

.camp-status.active {
    color: var(--success-color);
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.camp-content {
    padding: 20px;
}

.camp-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.camp-meta {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.camp-meta i {
    color: var(--primary-color);
    margin-right: 4px;
}

.camp-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.camp-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* ==========================================================================
   直播区块
   ========================================================================== */
.section-live {
    background: var(--bg-primary);
}

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

.live-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
}

.live-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(201, 169, 110, 0.3);
}

.live-image {
    position: relative;
    height: 160px;
    overflow: hidden;
}

.live-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.live-card:hover .live-image img {
    transform: scale(1.05);
}

.live-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 500;
    color: white;
    background: var(--danger-color);
    border-radius: var(--radius-full);
}

.live-dot {
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.live-viewers {
    position: absolute;
    bottom: 12px;
    right: 12px;
    padding: 4px 10px;
    font-size: 12px;
    color: white;
    background: rgba(0, 0, 0, 0.6);
    border-radius: var(--radius-full);
}

.live-content {
    padding: 20px;
}

.live-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.live-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ==========================================================================
   特色服务区块
   ========================================================================== */
.section-features {
    background: var(--bg-secondary);
}

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

.feature-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(201, 169, 110, 0.3);
}

.feature-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(201, 169, 110, 0.1), rgba(201, 169, 110, 0.05));
    border: 1px solid rgba(201, 169, 110, 0.2);
    border-radius: var(--radius-lg);
}

.feature-icon i {
    font-size: 32px;
    color: var(--primary-color);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.feature-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ==========================================================================
   CTA区块
   ========================================================================== */
.section-cta {
    background: linear-gradient(135deg, #0A0E14 0%, #161B22 100%);
    padding: 100px 0;
}

.cta-box {
    background: linear-gradient(135deg, rgba(201, 169, 110, 0.1), rgba(201, 169, 110, 0.05));
    border: 1px solid rgba(201, 169, 110, 0.2);
    border-radius: var(--radius-xl);
    padding: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 48px;
}

.cta-content {
    max-width: 500px;
}

.cta-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.cta-desc {
    font-size: 1rem;
    color: var(--text-secondary);
}

.cta-actions {
    display: flex;
    gap: 16px;
    flex-shrink: 0;
}

.cta-actions .btn-white {
    background: white;
    color: var(--bg-dark);
    border-color: white;
}

.cta-actions .btn-white:hover {
    background: var(--primary-color);
    color: var(--bg-dark);
    border-color: var(--primary-color);
}

.cta-actions .btn-outline-white {
    background: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
}

.cta-actions .btn-outline-white:hover {
    background: white;
    color: var(--bg-dark);
}

/* ==========================================================================
   响应式适配
   ========================================================================== */
@media (max-width: 1200px) {
    .course-grid,
    .camp-grid,
    .live-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-image {
        order: -1;
    }

    .hero-image img {
        max-width: 400px;
    }

    .course-grid,
    .camp-grid,
    .live-grid,
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .mentor-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cta-box {
        flex-direction: column;
        text-align: center;
        padding: 40px;
    }

    .cta-content {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .hero-section {
        padding: 60px 0 80px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-desc {
        font-size: 1rem;
    }

    .hero-actions {
        flex-direction: column;
        gap: 12px;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 24px;
    }

    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .course-grid,
    .camp-grid,
    .live-grid,
    .feature-grid,
    .mentor-grid {
        grid-template-columns: 1fr;
    }

    .cta-box {
        padding: 32px 24px;
    }

    .cta-title {
        font-size: 1.5rem;
    }

    .cta-actions {
        flex-direction: column;
        width: 100%;
    }

    .cta-actions .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.5rem;
    }
}