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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    background-color: #f5f7fa;
    color: #333;
}

/* ===== 顶部导航栏 ===== */
.header {
    background: #fff;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    padding: 0 40px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #1a73e8, #0d47a1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: bold;
    font-size: 18px;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: #0d47a1;
}

.logo-text span {
    color: #1a73e8;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-menu a {
    text-decoration: none;
    color: #555;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-menu a:hover {
    color: #1a73e8;
}

.nav-menu a.active {
    color: #1a73e8;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-outline {
    padding: 8px 20px;
    border: 1.5px solid #1a73e8;
    color: #1a73e8;
    background: transparent;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-outline:hover {
    background: #1a73e8;
    color: #fff;
}

.btn-primary {
    padding: 8px 24px;
    background: #1a73e8;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-primary:hover {
    background: #0d47a1;
}

/* ===== Hero 区域 ===== */
.hero {
    background: linear-gradient(135deg, #e8f0fe 0%, #d2e3fc 100%);
    padding: 60px 40px 50px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px;
}

.hero-content {
    flex: 1;
    min-width: 300px;
}

.hero-badge {
    display: inline-block;
    background: rgba(26, 115, 232, 0.12);
    color: #1a73e8;
    font-size: 13px;
    font-weight: 600;
    padding: 4px 16px;
    border-radius: 20px;
    margin-bottom: 16px;
}

.hero h1 {
    font-size: 36px;
    font-weight: 800;
    color: #0d1b3e;
    line-height: 1.2;
    margin-bottom: 8px;
}

.hero .subtitle {
    font-size: 20px;
    font-weight: 600;
    color: #1a73e8;
    margin-bottom: 12px;
}

.hero .desc {
    font-size: 15px;
    color: #555;
    margin-bottom: 24px;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-actions .btn-primary {
    padding: 12px 36px;
    font-size: 16px;
    border-radius: 8px;
    box-shadow: 0 4px 14px rgba(26, 115, 232, 0.35);
}

.hero-actions .btn-primary:hover {
    box-shadow: 0 6px 20px rgba(26, 115, 232, 0.45);
    transform: translateY(-2px);
}

.hero-actions .btn-outline {
    padding: 12px 28px;
    font-size: 15px;
    border-radius: 8px;
}

.hero-image {
    flex: 1;
    min-width: 280px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

/* ===== 底部咨询 ===== */
.cta-bottom {
    background: linear-gradient(135deg, #0d1b3e, #1a3a7a);
    padding: 36px 40px;
    text-align: center;
    color: #fff;
}

.cta-bottom h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 6px;
}

.cta-bottom p {
    font-size: 14px;
    opacity: 0.85;
    margin-bottom: 18px;
}

.cta-bottom .btn-primary {
    background: #fff;
    color: #0d1b3e;
    padding: 12px 48px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    transition: all 0.2s;
    border: none;
    cursor: pointer;
}

.cta-bottom .btn-primary:hover {
    background: #f0f4ff;
    transform: scale(1.02);
}

/* ===== 页脚 ===== */
.footer {
    background: #0a1329;
    color: rgba(255, 255, 255, 0.6);
    text-align: center;
    padding: 20px 40px;
    font-size: 13px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin: 0 10px;
}

.footer a:hover {
    color: #fff;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .header {
        padding: 0 16px;
        flex-wrap: wrap;
        height: auto;
        padding-top: 12px;
        padding-bottom: 12px;
        gap: 12px;
    }

    .nav-menu {
        gap: 14px;
        flex-wrap: wrap;
    }

    .nav-menu a {
        font-size: 13px;
    }

    .header-actions .btn-outline,
    .header-actions .btn-primary {
        padding: 6px 14px;
        font-size: 12px;
    }

    .cta-bottom {
        padding: 28px 16px;
    }

    .cta-bottom h3 {
        font-size: 18px;
    }
}