/* 英雄区域样式 */
.hero {
    background: linear-gradient(135deg, #0a1525 0%, #0d1c33 50%, #0f2340 100%);
    color: white;
    padding: 100px 0 60px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 150px;
    background: linear-gradient(to bottom, transparent, rgba(7, 13, 23, 0.9));
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    line-height: 1.2;
    animation: fadeInUp 1s ease-out;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-text {
    animation: fadeInUp 1s ease-out;
}

.hero-text h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1.15;
}

.hero-text h1 .highlight {
    display: block;
    color: #ffffff;
}

.hero-text p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 480px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease, color 0.3s ease;
    text-decoration: none;
    display: inline-block;
    font-weight: 600;
    text-shadow: 0 0 12px rgba(0, 0, 0, 1), 0 0 8px rgba(0, 0, 0, 1), 0 0 4px rgba(0, 0, 0, 0.9);
}

.btn-primary {
    background: #0c4a6e;
    color: #7dd3fc !important;
}

.btn-primary:hover {
    background: #075985;
    color: #e0f2fe !important;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(56, 189, 248, 0.2);
}

.btn-secondary {
    background: transparent;
    color: #7dd3fc !important;
    border: 2px solid rgba(125, 211, 252, 0.5);
}

.btn-secondary:hover {
    background: rgba(56, 189, 248, 0.1);
    color: #e0f2fe !important;
    border-color: rgba(125, 211, 252, 0.8);
    transform: translateY(-2px);
}

.hero-image {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 1s ease-out 0.3s both;
}

.hero-placeholder {
    width: 100%;
    max-width: 400px;
    height: 300px;
    background: rgba(30, 58, 138, 0.1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: rgba(255,255,255,0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(59, 130, 246, 0.2);
    animation: fadeIn 1s ease-out 0.6s both;
    transform: translateY(var(--parallax-y, 0));
}