/* 直觉科技全站品牌：专业蓝 + Noto Sans SC 字重对比 */
:root {
    --primary-color: #1e4fd6;
    --secondary-color: #2563eb;
    --accent-color: #1e4fd6;
    --accent-light: #dbe7ff;
    --dark-color: #0f1b2d;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --light-color: #f5f8fc;
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 15px 30px rgba(0, 0, 0, 0.12);
    --border-radius: 12px;
    --transition: all 0.3s ease;
    /* 兼容部分产品页旧变量名 */
    --primary: #1e4fd6;
    --secondary: #2563eb;
    --accent: #1e4fd6;
    --dark: #0f1b2d;
    --light: #f5f8fc;
    --text: #1f2937;
}

body {
    font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    font-weight: 400;
    color: var(--text-color);
}

h1, h2, h3, h4, h5, h6,
.logo,
.section-title,
.form-title {
    font-weight: 700;
}

.nav-links a,
.btn-primary,
.btn-outline,
.contact-btn,
.product-tag,
.submit-btn,
.submit-btn-form {
    font-weight: 500;
}

/* ===== 全站页头 / 页尾 ===== */
nav.site-nav.navbar {
    background: rgba(255, 255, 255, 0.95) !important;
    padding: 1rem 0 !important;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08) !important;
    position: sticky !important;
    width: 100% !important;
    top: 0 !important;
    z-index: 1000 !important;
    backdrop-filter: blur(10px);
}
nav.site-nav .nav-container {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem !important;
    position: relative;
    width: 100%;
    box-sizing: border-box;
}
nav.site-nav a.logo {
    font-size: 1.35rem !important;
    font-weight: 700 !important;
    color: var(--dark-color) !important;
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
    text-decoration: none !important;
    line-height: 1.15 !important;
    flex-direction: row !important;
}
nav.site-nav a.logo img {
    height: 40px !important;
    width: auto !important;
    padding: 0 !important;
    margin: 0 !important;
    display: block !important;
}
nav.site-nav .logo-text {
    display: flex !important;
    flex-direction: column !important;
    align-items: flex-start !important;
    line-height: 1.15 !important;
    gap: 0 !important;
}
nav.site-nav .logo-name {
    font-size: 1.25rem !important;
    font-weight: 700 !important;
    color: var(--dark-color) !important;
    display: block !important;
    white-space: nowrap;
}
nav.site-nav .slogan {
    font-size: 0.72rem !important;
    color: var(--text-light) !important;
    font-weight: 400 !important;
    letter-spacing: 0.5px;
    margin-top: 2px !important;
    white-space: nowrap;
    display: block !important;
}
nav.site-nav .nav-links {
    display: flex !important;
    list-style: none !important;
    align-items: center;
    margin: 0 !important;
    padding: 0 !important;
}
nav.site-nav .nav-links li {
    margin-left: 2rem !important;
    margin-right: 0 !important;
}
nav.site-nav .nav-links a {
    text-decoration: none !important;
    color: var(--dark-color) !important;
    font-weight: 500 !important;
    padding: 0.5rem 0 !important;
    background: none !important;
}
nav.site-nav .contact-btn {
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color)) !important;
    color: white !important;
    padding: 0.7rem 1.5rem !important;
    border-radius: 30px !important;
    font-weight: 600 !important;
    text-decoration: none !important;
    box-shadow: 0 4px 15px rgba(30, 79, 214, 0.3);
    border: none !important;
}
nav.site-nav .menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}
nav.site-nav .menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--dark-color);
    border-radius: 2px;
    transition: all 0.3s ease;
}
nav.site-nav .menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
nav.site-nav .menu-toggle.active span:nth-child(2) {
    opacity: 0;
}
nav.site-nav .menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

footer.site-footer {
    background: linear-gradient(135deg, var(--dark-color), #2d3748) !important;
    color: #a8b2c1 !important;
    padding: 4rem 0 2.5rem !important;
    text-align: left !important;
}
footer.site-footer .footer-content,
footer.site-footer .container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    padding: 0 2rem;
}
footer.site-footer h3 {
    color: white !important;
    font-size: 1.3rem !important;
    margin-bottom: 1.8rem !important;
    font-weight: 600 !important;
}
footer.site-footer p,
footer.site-footer li {
    color: #a8b2c1 !important;
}
footer.site-footer .footer-links {
    list-style: none !important;
    padding: 0 !important;
    margin: 0 !important;
}
footer.site-footer .footer-links li {
    margin-bottom: 1rem;
}
footer.site-footer .copyright {
    text-align: center;
    padding: 2.5rem 0 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    margin: 3rem 2rem 0;
    color: #718096 !important;
}
footer.site-footer .copyright a {
    color: #a8b2c1 !important;
    text-decoration: none;
}

/* 次页产品首屏：统一专业蓝（不影响首页 .hero 浅色背景） */
.product-header,
body > header {
    background: linear-gradient(135deg, #1e4fd6 0%, #2563eb 100%) !important;
}

@media (max-width: 992px) {
    nav.site-nav .menu-toggle {
        display: flex !important;
    }
    nav.site-nav .nav-links {
        display: none !important;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98) !important;
        flex-direction: column !important;
        padding: 1rem 0 !important;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    }
    nav.site-nav .nav-links.open {
        display: flex !important;
    }
    nav.site-nav .nav-links li {
        margin: 0 !important;
        text-align: center;
        width: 100%;
    }
    nav.site-nav .nav-links a {
        display: block !important;
        padding: 0.9rem 2rem !important;
    }
}
@media (max-width: 480px) {
    nav.site-nav .contact-btn {
        display: none !important;
    }
    nav.site-nav .slogan {
        display: none !important;
    }
}