/* Hero 和 CTA 区域背景样式 - 图片背景 + 半透明黑色遮罩 */

/* Hero 区域 - 图片背景 + 黑色遮罩 */
.hero-bg {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: url('../images/ss.jpg') center/cover no-repeat;
    color: white;
    padding: 40px 20px;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0.3) 100%);
    z-index: 0;
}

.hero-bg>.container {
    position: relative;
    z-index: 1;
}

.hero-bg-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-bg-content h1 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.hero-bg-content p {
    font-size: 1rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

/* Hero导航按钮 */
.hero-bg-nav-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    width: 100%;
    text-shadow: #303030 0 0 4px;
}

.hero-bg-nav-btn {
    display: inline-block;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.15);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-size: 24px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
    text-align: center;
}

.hero-bg-nav-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.hero-bg-nav-btn-large {
    padding: 20px 24px;
    font-size: 14px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    min-width: 140px;
    width: 220px;
    backdrop-filter: blur(3px);
}

.hero-bg-nav-btn-large .btn-number {
    font-size: 24px;
    font-weight: 700;
    display: block;
}

.hero-bg-nav-btn-large .btn-text {
    font-size: 16px;
    font-weight: 600;
    display: block;
}

.hero-bg-nav-btn-large .btn-action {
    font-size: 13px;
    color: rgb(188, 220, 250);
    font-weight: 400;
    opacity: 0.9;
    display: block;
}

/* CTA Section - 图片背景 + 黑色遮罩 */
.cta-bg-section {
    position: relative;
    padding: 80px 0;
    background: url('../images/ss.jpg') center/cover no-repeat;
    color: white;
    overflow: hidden;
}

.cta-bg-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.75) 0%, rgba(0, 0, 0, 0.65) 100%);
    z-index: 0;
}

.cta-bg-content {
    position: relative;
    z-index: 1;
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.cta-bg-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: white;
}

.cta-bg-title .highlight {
    color: #FFD700;
}

.cta-bg-description {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 50px;
    color: rgba(255, 255, 255, 0.95);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.cta-bg-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.cta-bg-card {
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    padding: 30px;
    text-align: left;
    transition: all 0.3s;
}

.cta-bg-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.cta-bg-card-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: white;
    display: flex;
    align-items: center;
    gap: 10px;
}

.cta-bg-card-content {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.cta-bg-contact-item,
.cta-bg-organizer-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.cta-bg-contact-icon,
.cta-bg-organizer-icon {
    font-size: 1.1rem;
    width: 6rem;
}

.cta-bg-contact-text,
.cta-bg-organizer-text {
    font-size: 0.95rem;
    color: #FFD700;
}

/* CTA 按钮 */
.cta-bg-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.cta-bg-button {
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s;
    display: inline-block;
}

.cta-bg-button-primary {
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    color: #1a1a1a;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.cta-bg-button-primary:hover {
    background: linear-gradient(135deg, #FFA500 0%, #FF8C00 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
}

.cta-bg-button-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.cta-bg-button-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

/* 响应式设计 */
@media screen and (min-width: 768px) {
    .hero-bg-content h1 {
        font-size: 3rem;
    }

    .hero-bg-content p {
        font-size: 1.2rem;
    }
}

@media screen and (max-width: 767px) {
    .hero-bg-nav-buttons {
        flex-direction: column;
        width: 100%;
    }

    .hero-bg-nav-btn,
    .hero-bg-nav-btn-large {
        width: 100%;
        padding: 12px 20px;
        box-sizing: border-box;
    }

    .cta-bg-title {
        font-size: 1.8rem;
    }

    .cta-bg-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .cta-bg-buttons {
        flex-direction: column;
    }

    .cta-bg-button {
        width: 100%;
        padding: 12px 24px;
        text-align: center;
    }

    .cta-bg-contact-item,
    .cta-bg-organizer-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .cta-bg-contact-icon,
    .cta-bg-organizer-icon {
        width: auto;
    }
}

/* 平板设备 */
@media screen and (min-width: 768px) and (max-width: 1024px) {
    .hero-bg {
        padding: 40px 30px;
    }

    .cta-bg-section {
        padding: 60px 0;
    }

    .cta-bg-grid {
        gap: 20px;
    }
}