/* ============================================
   苏州精斗云网络科技有限公司 - 企业官网样式
    Color Palette inspired by Kingdee Official
    Primary: #0A5C96 (Deep Blue)
    Accent: #F57C00 (Orange)
    Background: #FFFFFF, #F8F9FA
   ============================================ */

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

:root {
    --primary: #0A5C96;
    --primary-dark: #074069;
    --primary-light: #1A7AC8;
    --accent: #F57C00;
    --accent-light: #FFA726;
    --bg: #FFFFFF;
    --bg-light: #F8F9FA;
    --bg-dark: #F0F4F8;
    --text: #333333;
    --text-light: #666666;
    --text-lighter: #999999;
    --border: #E8ECF0;
    --white: #FFFFFF;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 8px 40px rgba(0, 0, 0, 0.12);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
}

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

ul, ol {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-title p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.section-title .subtitle-en {
    font-size: 13px;
    color: var(--text-lighter);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 12px;
    display: block;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 36px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-align: center;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(10, 92, 150, 0.3);
}

.btn-accent {
    background: var(--accent);
    color: var(--white);
}

.btn-accent:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(245, 124, 0, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}

/* ---------- Navbar ---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
}

.nav-logo .logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    font-weight: 800;
}

.nav-logo span {
    color: var(--accent);
}

.nav-logo .logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.nav-logo .logo-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-left: 10px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-links a {
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary);
    background: rgba(10, 92, 150, 0.06);
}

/* ---------- Dropdown Menu ---------- */
.nav-dropdown {
    position: relative;
}

.dropdown-toggle {
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    transition: var(--transition);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    text-decoration: none;
}

.dropdown-toggle:hover,
.nav-dropdown:hover .dropdown-toggle {
    color: var(--primary);
    background: rgba(10, 92, 150, 0.06);
}

.dropdown-toggle.active {
    color: var(--primary);
    background: rgba(10, 92, 150, 0.06);
}

.arrow {
    font-size: 12px;
    transition: transform 0.3s ease;
}

.nav-dropdown:hover .arrow {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 200px;
    border-radius: var(--radius);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.12);
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 12px 24px;
    font-size: 14px;
    color: var(--text);
    text-decoration: none;
    transition: var(--transition);
    white-space: nowrap;
}

.dropdown-menu a:hover {
    background: var(--bg-light);
    color: var(--primary);
}

.dropdown-menu a.active {
    background: rgba(10, 92, 150, 0.06);
    color: var(--primary);
    font-weight: 600;
}

/* Mobile dropdown */
@media (max-width: 768px) {
    .dropdown-menu {
        position: static !important;
        opacity: 1 !important;
        visibility: visible !important;
        transform: none !important;
        box-shadow: none !important;
        background: var(--bg-light) !important;
        display: none;
        padding-left: 20px;
    }
    
    .dropdown-menu.show {
        display: block !important;
    }
    
    .dropdown-toggle {
        justify-content: space-between;
        width: 100%;
    }
}

.nav-cta {
    margin-left: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-cta .btn {
    padding: 10px 24px;
    font-size: 14px;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text);
    padding: 8px;
}

/* ---------- Hero ---------- */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(160deg, #F0F7FF 0%, #FFFFFF 40%, #FFF8F0 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(10, 92, 150, 0.04) 0%, transparent 70%);
    top: -200px;
    right: -200px;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.15;
    color: var(--text);
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.hero-content h1 .highlight {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content h1 .accent-text {
    color: var(--accent);
}

.hero-content p {
    font-size: 18px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-card {
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
    padding: 40px;
    width: 100%;
    max-width: 480px;
    position: relative;
    overflow: hidden;
}

.hero-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.hero-card h3 {
    font-size: 22px;
    margin-bottom: 24px;
    color: var(--primary);
}

.hero-card .feature-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.hero-card .feature-item {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 15px;
    color: var(--text);
}

.hero-card .feature-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(10, 92, 150, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

/* ---------- Partners Badge ---------- */
.partners-bar {
    padding: 40px 0;
    background: var(--bg-light);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.partners-bar .container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.partners-bar .badge {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 24px;
    background: var(--white);
    border-radius: 50px;
    box-shadow: var(--shadow);
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
}

.partners-bar .badge .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
}

/* ---------- Products Grid ---------- */
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.product-card .card-header {
    padding: 30px 30px 20px;
    position: relative;
}

.product-card .card-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.product-card:nth-child(1) .card-header::before { background: linear-gradient(90deg, #0A5C96, #1A7AC8); }
.product-card:nth-child(2) .card-header::before { background: linear-gradient(90deg, #F57C00, #FFA726); }
.product-card:nth-child(3) .card-header::before { background: linear-gradient(90deg, #6A1B9A, #9C27B0); }
.product-card:nth-child(4) .card-header::before { background: linear-gradient(90deg, #00695C, #00897B); }
.product-card:nth-child(5) .card-header::before { background: linear-gradient(90deg, #E65100, #F4511E); }
.product-card:nth-child(6) .card-header::before { background: linear-gradient(90deg, #1A237E, #283593); }

.product-card .card-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 20px;
}

.product-card:nth-child(1) .card-icon { background: rgba(10, 92, 150, 0.1); }
.product-card:nth-child(2) .card-icon { background: rgba(245, 124, 0, 0.1); }
.product-card:nth-child(3) .card-icon { background: rgba(106, 27, 154, 0.1); }
.product-card:nth-child(4) .card-icon { background: rgba(0, 105, 92, 0.1); }
.product-card:nth-child(5) .card-icon { background: rgba(230, 81, 0, 0.1); }
.product-card:nth-child(6) .card-icon { background: rgba(26, 35, 126, 0.1); }

.product-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
}

.product-card .card-tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 16px;
}

.product-card:nth-child(1) .card-tag { background: rgba(10, 92, 150, 0.08); color: var(--primary); }
.product-card:nth-child(2) .card-tag { background: rgba(245, 124, 0, 0.08); color: var(--accent); }
.product-card:nth-child(3) .card-tag { background: rgba(106, 27, 154, 0.08); color: #6A1B9A; }
.product-card:nth-child(4) .card-tag { background: rgba(0, 105, 92, 0.08); color: #00695C; }
.product-card:nth-child(5) .card-tag { background: rgba(230, 81, 0, 0.08); color: #E65100; }
.product-card:nth-child(6) .card-tag { background: rgba(26, 35, 126, 0.08); color: #1A237E; }

.product-card .card-body {
    padding: 0 30px 30px;
}

.product-card .card-body p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 20px;
}

.product-card .card-features {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 24px;
}

.product-card .card-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text);
}

.product-card .card-features li::before {
    content: '✓';
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(10, 92, 150, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    color: var(--primary);
    font-weight: 700;
    flex-shrink: 0;
}

.product-card .card-price {
    font-size: 14px;
    color: var(--accent);
    font-weight: 700;
    margin-bottom: 20px;
}

.product-card .card-footer {
    padding: 0 30px 30px;
}

/* ---------- Advantages ---------- */
.advantages {
    background: var(--bg-light);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.advantage-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 40px 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
}

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

.advantage-card .adv-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin: 0 auto 24px;
    color: white;
}

.advantage-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
}

.advantage-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* ---------- About Page ---------- */
.about-hero {
    padding: 160px 0 80px;
    background: linear-gradient(160deg, #F0F7FF 0%, #FFFFFF 100%);
    text-align: center;
}

.about-hero h1 {
    font-size: 48px;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 20px;
}

.about-hero p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

.about-content {
    padding: 100px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.about-grid:nth-child(even) {
    direction: rtl;
}

.about-grid:nth-child(even) > * {
    direction: ltr;
}

.about-text h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text);
}

.about-text p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.9;
    margin-bottom: 20px;
}

.about-visual {
    background: var(--bg-light);
    border-radius: var(--radius);
    padding: 40px;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.stat-card {
    text-align: center;
    padding: 40px 20px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.stat-card .stat-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 8px;
    line-height: 1;
}

.stat-card .stat-label {
    font-size: 14px;
    color: var(--text-light);
}

/* ---------- Products Page ---------- */
.product-detail {
    padding: 160px 0 100px;
}

.product-detail-hero {
    text-align: center;
    margin-bottom: 80px;
    padding: 60px 0;
    background: linear-gradient(160deg, #F0F7FF 0%, #FFFFFF 100%);
    border-radius: var(--radius);
}

.product-detail-hero h1 {
    font-size: 42px;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 16px;
}

.product-detail-hero .product-subtitle {
    font-size: 18px;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto 30px;
}

.product-detail-hero .product-tags {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.product-detail-hero .product-tags span {
    padding: 6px 18px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    background: rgba(10, 92, 150, 0.08);
    color: var(--primary);
}

/* Product Sections */
.product-section {
    margin-bottom: 80px;
}

.product-section-title {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border);
}

.product-section-title .section-number {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    font-weight: 800;
    flex-shrink: 0;
}

.product-section-title h2 {
    font-size: 28px;
    font-weight: 700;
}

.scenario-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.scenario-card {
    background: var(--bg-light);
    border-radius: var(--radius);
    padding: 30px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.scenario-card:hover {
    background: var(--white);
    box-shadow: var(--shadow);
}

.scenario-card .scenario-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(10, 92, 150, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin-bottom: 20px;
}

.scenario-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
}

.scenario-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

.selling-points {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.point-card {
    display: flex;
    gap: 20px;
    padding: 30px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: var(--transition);
}

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

.point-card .point-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
    color: white;
}

.point-card .point-content h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
}

.point-card .point-content p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

.features-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.features-table th {
    background: var(--primary);
    color: var(--white);
    padding: 18px 24px;
    text-align: left;
    font-size: 15px;
    font-weight: 600;
}

.features-table td {
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    color: var(--text);
}

.features-table tr:last-child td {
    border-bottom: none;
}

.features-table tr:hover td {
    background: var(--bg-light);
}

.price-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.price-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 2px solid var(--border);
    overflow: hidden;
    transition: var(--transition);
    position: relative;
}

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

.price-card.featured {
    border-color: var(--primary);
}

.price-card .featured-badge {
    position: absolute;
    top: 16px;
    right: -30px;
    background: var(--accent);
    color: white;
    padding: 6px 40px;
    font-size: 12px;
    font-weight: 700;
    transform: rotate(45deg);
}

.price-card .price-header {
    padding: 40px 30px 30px;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.price-card .price-header h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 16px;
}

.price-card .price-amount {
    font-size: 40px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 8px;
}

.price-card .price-amount .unit {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-light);
}

.price-card .price-note {
    font-size: 13px;
    color: var(--text-lighter);
}

.price-card .price-features {
    padding: 30px;
}

.price-card .price-features li {
    padding: 10px 0;
    font-size: 14px;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid var(--bg-dark);
}

.price-card .price-features li:last-child {
    border-bottom: none;
}

.price-card .price-features li::before {
    content: '✓';
    color: #4CAF50;
    font-weight: 700;
    font-size: 14px;
}

.price-card .price-footer {
    padding: 0 30px 30px;
    text-align: center;
}

/* ---------- Contact Page ---------- */
.contact-hero {
    padding: 160px 0 80px;
    background: linear-gradient(160deg, #F0F7FF 0%, #FFFFFF 100%);
    text-align: center;
}

.contact-hero h1 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
}

.contact-hero p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.contact-content {
    padding: 100px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 50px 40px;
    border: 1px solid var(--border);
}

.contact-info-card h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 30px;
    color: var(--primary);
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    align-items: flex-start;
}

.contact-item .contact-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(10, 92, 150, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.contact-item .contact-detail h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
}

.contact-item .contact-detail p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.7;
}

.contact-form-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 50px 40px;
    border: 1px solid var(--border);
}

.contact-form-card h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 30px;
    color: var(--primary);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-family: inherit;
    transition: var(--transition);
    background: var(--bg);
    color: var(--text);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(10, 92, 150, 0.1);
}

.form-group textarea {
    min-height: 140px;
    resize: vertical;
}

/* ---------- Footer ---------- */
.footer {
    background: #0A1A2F;
    color: rgba(255, 255, 255, 0.8);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 24px;
}

.footer-brand .partner-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    font-size: 13px;
    color: var(--accent-light);
    font-weight: 600;
}

.footer-links h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 24px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 30px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.6);
}

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

/* ---------- Page Header (for subpages) ---------- */
.page-header {
    padding: 160px 0 80px;
    background: linear-gradient(160deg, #F0F7FF 0%, #FFFFFF 100%);
    text-align: center;
}

.page-header h1 {
    font-size: 48px;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 16px;
}

.page-header p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-lighter);
    margin-bottom: 20px;
}

.breadcrumb a {
    color: var(--text-light);
}

.breadcrumb a:hover {
    color: var(--primary);
}

/* ---------- CTA Section ---------- */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    text-align: center;
    color: var(--white);
}

.cta-section h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-section .btn {
    background: var(--white);
    color: var(--primary);
    font-weight: 700;
}

.cta-section .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content p {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-buttons {
        justify-content: center;
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .about-grid:nth-child(even) {
        direction: ltr;
    }

    .scenario-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .price-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }

    .nav-links {
        display: none;
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        z-index: 999;
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }

    .nav-cta {
        margin-left: 0;
        flex-direction: column;
        width: 100%;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero-content h1 {
        font-size: 32px;
    }

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

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

    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .selling-points {
        grid-template-columns: 1fr;
    }

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

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

    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    .page-header h1,
    .about-hero h1,
    .contact-hero h1 {
        font-size: 32px;
    }

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

/* ---------- Animations ---------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* ---------- Product Tabs (for products page) ---------- */
.product-tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 60px;
    flex-wrap: wrap;
    justify-content: center;
}

.product-tab {
    padding: 12px 28px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    border: 2px solid var(--border);
    background: var(--white);
    color: var(--text);
    transition: var(--transition);
}

.product-tab:hover,
.product-tab.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

/* ---------- Map Placeholder ---------- */
.map-placeholder {
    width: 100%;
    height: 300px;
    background: var(--bg-light);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-lighter);
    font-size: 14px;
    border: 1px solid var(--border);
    margin-top: 30px;
}