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

body {
    font-family: 'Inter', sans-serif;
    background-color: #F4F7FC;
    color: #1e2a3a;
    line-height: 1.5;
}

/* 复用全局组件样式 */
.btn-primary {
    background-color: #E87C20;
    color: white;
    border: none;
    padding: 0.7rem 1.5rem;
    border-radius: 0.375rem;
    font-weight: 600;
    transition: all 0.2s;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}
.btn-primary:hover {
    background-color: #cf6a12;
    transform: translateY(-2px);
}
.btn-outline {
    background: transparent;
    border: 1.5px solid #E87C20;
    color: #E87C20;
    padding: 0.6rem 1.3rem;
    font-weight: 600;
    border-radius: 0.375rem;
    transition: 0.2s;
    text-decoration: none;
}
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}
/* 导航栏 (保持统一) */
.navbar {
    background: #0B2B4A;
    padding: 0.9rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.nav-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}
.logo {
    width: 180px;
    max-width: 180px;
}
.logo img {
    width: 100%;
    height: auto;
}
.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
    list-style: none;
}
.nav-links a {
    color: #f0f0f0;
    text-decoration: none;
    font-weight: 500;
    transition: 0.2s;
}
.nav-links a:hover, .nav-links a.active {
    color: #E87C20;
}
.search-area {
    background: #1E2F3E;
    padding: 0.3rem 0.8rem;
    border-radius: 40px;
    display: flex;
    gap: 0.5rem;
}
.search-area input {
    background: transparent;
    border: none;
    color: white;
    padding: 0.3rem;
    outline: none;
    width: 160px;
}
.search-area button {
    background: none;
    border: none;
    color: #E87C20;
    cursor: pointer;
}
.mobile-menu-btn {
    display: none;
    font-size: 1.8rem;
    color: white;
    background: none;
    border: none;
    cursor: pointer;
}
@media (max-width: 900px) {
    .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 1rem;
        padding: 1rem 0;
    }
    .nav-links.show {
        display: flex;
    }
    .mobile-menu-btn {
        display: block;
    }
    .search-area {
        width: 100%;
        margin-top: 0.5rem;
    }
}

/* 深色主题页头 */
.page-header {
    background: linear-gradient(105deg, #0B2B4A 0%, #0f3860 100%);
    color: white;
    padding: 3rem 0;
    text-align: center;
}
.page-header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}
.page-header p {
    font-size: 1rem;
    opacity: 0.85;
    max-width: 650px;
    margin: 0.8rem auto 0;
}

footer {
    background: #0a1a2c;
    color: #adb7c2;
    padding: 2rem 0;
    text-align: center;
}

.whatsapp-float {
    position: fixed;
    bottom: 40px;
    right: 20px;
    background: #25D366;
    color: white;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    z-index: 99;
    cursor: pointer;
    transition: 0.2s;
}
.whatsapp-float:hover {
    transform: scale(1.05);
}