/* ============================================
   广州仙狐网络科技有限公司 - 官方网站样式
   科技简约风格 / 蓝色主色调
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
    --primary: #1a73e8;
    --primary-dark: #1557b0;
    --primary-light: #4a9af5;
    --primary-bg: #e8f0fe;
    --accent: #0d47a1;
    --dark: #1a1a2e;
    --text: #333333;
    --text-light: #666666;
    --text-muted: #999999;
    --bg: #ffffff;
    --bg-light: #f7f9fc;
    --bg-section: #f0f4f8;
    --border: #e0e6ed;
    --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 30px rgba(26, 115, 232, 0.12);
    --radius: 8px;
    --radius-lg: 16px;
    --transition: 0.3s ease;
    --max-width: 1200px;
    --font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    color: var(--text);
    background: var(--bg);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition);
}

ul,
ol {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* ---------- Utility ---------- */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 80px 0;
}

.section-alt {
    background: var(--bg-section);
}

.section-title {
    text-align: center;
    margin-bottom: 48px;
}

.section-title h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--dark);
    position: relative;
    display: inline-block;
    padding-bottom: 12px;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 2px;
}

.section-title p {
    margin-top: 12px;
    color: var(--text-light);
    font-size: 16px;
}

/* ---------- Header / Navigation ---------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: box-shadow var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    white-space: nowrap;
}

.logo .logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    font-weight: 800;
}

.nav-list {
    display: flex;
    gap: 8px;
}

.nav-list a {
    padding: 8px 18px;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    transition: all var(--transition);
    position: relative;
}

.nav-list a:hover,
.nav-list a.active {
    color: var(--primary);
    background: var(--primary-bg);
}

/* Mobile menu toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all var(--transition);
}

/* ---------- Hero / Banner ---------- */
.hero {
    margin-top: 72px;
    position: relative;
    background: linear-gradient(135deg, #0d47a1 0%, #1a73e8 50%, #4a9af5 100%);
    min-height: 520px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08), transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.05), transparent 70%);
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 720px;
    padding: 60px 0;
}

.hero-content h1 {
    font-size: 42px;
    font-weight: 800;
    color: #fff;
    line-height: 1.3;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.8;
    margin-bottom: 32px;
}

.hero-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 36px;
    background: #fff;
    color: var(--primary);
    font-size: 16px;
    font-weight: 600;
    border-radius: 50px;
    transition: all var(--transition);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.hero-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* Floating shapes on hero */
.hero-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.hero-shapes .shape {
    position: absolute;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.hero-shapes .shape:nth-child(1) {
    width: 80px;
    height: 80px;
    top: 15%;
    right: 15%;
    animation-delay: 0s;
}

.hero-shapes .shape:nth-child(2) {
    width: 120px;
    height: 120px;
    top: 60%;
    right: 25%;
    animation-delay: 2s;
}

.hero-shapes .shape:nth-child(3) {
    width: 60px;
    height: 60px;
    top: 40%;
    right: 8%;
    animation-delay: 4s;
}

.hero-shapes .shape:nth-child(4) {
    width: 100px;
    height: 100px;
    bottom: 15%;
    right: 40%;
    animation-delay: 1s;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }
}

/* ---------- Page Banner (inner pages) ---------- */
.page-banner {
    margin-top: 72px;
    background: linear-gradient(135deg, #0d47a1 0%, #1a73e8 100%);
    padding: 60px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.06), transparent 70%);
    border-radius: 50%;
}

.page-banner h1 {
    font-size: 36px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
}

.page-banner .breadcrumb {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    position: relative;
    z-index: 1;
}

.page-banner .breadcrumb a {
    color: rgba(255, 255, 255, 0.7);
}

.page-banner .breadcrumb a:hover {
    color: #fff;
}

/* ---------- Cards Grid ---------- */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
}

.card {
    background: var(--bg);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: all var(--transition);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    opacity: 0;
    transition: opacity var(--transition);
}

.card:hover::before {
    opacity: 1;
}

.card-icon {
    width: 56px;
    height: 56px;
    background: var(--primary-bg);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 20px;
}

.card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 12px;
}

.card p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
}

/* ---------- Advantages Section ---------- */
.advantages-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.advantage-item {
    text-align: center;
    padding: 32px 20px;
    background: var(--bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all var(--transition);
}

.advantage-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.advantage-item .icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: #fff;
}

.advantage-item h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}

.advantage-item p {
    font-size: 14px;
    color: var(--text-light);
}

/* ---------- About Page ---------- */
.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.about-intro .text-content h3 {
    font-size: 26px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 16px;
}

.about-intro .text-content p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 2;
}

.about-image {
    background: linear-gradient(135deg, var(--primary-bg), #d0e2ff);
    border-radius: var(--radius-lg);
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    position: relative;
    overflow: hidden;
}

.about-image .illustration {
    font-size: 120px;
    opacity: 0.7;
}

.info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.info-card {
    background: var(--bg);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    border: 1px solid var(--border);
    transition: all var(--transition);
}

.info-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.info-card .icon-badge {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 20px;
    margin-bottom: 16px;
}

.info-card h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 10px;
}

.info-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
}

/* ---------- Product Page ---------- */
.product-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.product-hero .text h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 16px;
}

.product-hero .text h3 span {
    color: var(--primary);
}

.product-hero .text p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 2;
}

.product-visual {
    background: linear-gradient(135deg, #e8f0fe, #d0e2ff);
    border-radius: var(--radius-lg);
    min-height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.product-visual .crm-icon {
    font-size: 100px;
    opacity: 0.7;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    border: 1px solid var(--border);
    transition: all var(--transition);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.feature-card .num {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 20px;
    font-weight: 700;
    margin: 0 auto 16px;
}

.feature-card h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
}

/* ---------- Contact Page ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.contact-card {
    background: var(--bg);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    border: 1px solid var(--border);
    transition: all var(--transition);
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.contact-card .icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
    margin: 0 auto 16px;
}

.contact-card h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}

.contact-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
}

.consult-box {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-lg);
    padding: 48px;
    text-align: center;
    color: #fff;
    margin-top: 48px;
}

.consult-box h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.consult-box p {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 24px;
}

.consult-box .email-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: #fff;
    color: var(--primary);
    font-weight: 600;
    border-radius: 50px;
    transition: all var(--transition);
}

.consult-box .email-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

/* ---------- CTA Section ---------- */
.cta-section {
    background: linear-gradient(135deg, #0d47a1, #1a73e8);
    padding: 60px 0;
    text-align: center;
}

.cta-section h2 {
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}

.cta-section p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 28px;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 36px;
    background: #fff;
    color: var(--primary);
    font-size: 16px;
    font-weight: 600;
    border-radius: 50px;
    transition: all var(--transition);
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* ---------- Footer ---------- */
.footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 48px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 36px;
}

.footer-brand .logo-text {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.5);
}

.footer-links h4,
.footer-contact h4 {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 16px;
}

.footer-links ul li {
    margin-bottom: 8px;
}

.footer-links ul li a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    transition: color var(--transition);
}

.footer-links ul li a:hover {
    color: var(--primary-light);
}

.footer-contact p {
    font-size: 14px;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a:hover {
    color: var(--primary-light);
}

/* ---------- Scroll Animations ---------- */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
    .header .container {
        height: 60px;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-list {
        position: fixed;
        top: 60px;
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(12px);
        flex-direction: column;
        gap: 0;
        padding: 12px 0;
        border-bottom: 1px solid var(--border);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition);
    }

    .nav-list.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .nav-list a {
        display: block;
        padding: 12px 24px;
        border-radius: 0;
    }

    .hero {
        margin-top: 60px;
        min-height: 400px;
    }

    .hero-content h1 {
        font-size: 28px;
    }

    .hero-content p {
        font-size: 15px;
    }

    .page-banner {
        margin-top: 60px;
        padding: 40px 0;
    }

    .page-banner h1 {
        font-size: 26px;
    }

    .section {
        padding: 48px 0;
    }

    .section-title h2 {
        font-size: 24px;
    }

    .about-intro {
        grid-template-columns: 1fr;
    }

    .product-hero {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .logo {
        font-size: 15px;
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }
}