/* 落地页专业样式 - Landing Page Styles */

:root {
    --lp-primary: #0f2341;
    --lp-secondary: #005aab;
    --lp-accent: #FF6600;
    --lp-accent-hover: #e05d00;
    --lp-light: #f8f9fa;
    --lp-gray: #6c757d;
    --lp-dark: #1a1a1a;
    --lp-white: #ffffff;
    --lp-border: #e0e0e0;
    --lp-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --lp-shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.15);
    --lp-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    color: var(--lp-dark);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Section Container */
.lp-section-container {
    max-width: 1450px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Section Header */
.lp-section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.lp-section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--lp-primary);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.lp-section-header p {
    font-size: 1.125rem;
    color: var(--lp-gray);
    max-width: 700px;
    margin: 0 auto;
}

.lp-section-header.lp-align-left {
    text-align: left;
}

.lp-section-header.lp-align-left h2 {
    margin-bottom: 0.5rem;
}

.lp-section-header.lp-align-left p {
    margin: 0;
}

/* CTA Buttons */
.lp-cta-primary {
    display: inline-block;
    background: linear-gradient(135deg, var(--lp-accent) 0%, var(--lp-accent-hover) 100%);
    color: var(--lp-white);
    padding: 1rem 2.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
    transition: var(--lp-transition);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(255, 102, 0, 0.3);
}

.lp-cta-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(255, 102, 0, 0.4);
}

.lp-cta-secondary {
    display: inline-block;
    background: var(--lp-white);
    color: var(--lp-primary);
    padding: 1rem 2.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
    transition: var(--lp-transition);
    border: 2px solid var(--lp-primary);
}

.lp-cta-secondary:hover {
    background: var(--lp-primary);
    color: var(--lp-white);
}

/* WhatsApp Float Button */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25d366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: var(--lp-transition);
    z-index: 999;
    text-decoration: none;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.6);
}

/* Header */
.lp-header {
    background: var(--lp-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.lp-header-container {
    max-width: 1450px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.lp-logo img {
    height: 50px;
}

/* Navigation Menu */
.lp-nav-menu {
    flex: 1;
    display: flex;
    justify-content: center;
    margin: 0 2rem;
}

.lp-nav-list {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    margin: 0;
    padding: 0;
}

.lp-nav-item {
    position: relative;
}

.lp-nav-link {
    display: block;
    padding: 0.75rem 1.25rem;
    color: var(--lp-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--lp-transition);
    border-radius: 4px;
}

.lp-nav-link:hover {
    color: var(--lp-accent);
    background: rgba(255, 102, 0, 0.05);
}

.lp-header-contact {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.lp-phone {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--lp-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--lp-transition);
}

.lp-phone i {
    color: var(--lp-accent);
}

.lp-phone:hover {
    color: var(--lp-accent);
}

.lp-cta-btn {
    background: var(--lp-accent);
    color: var(--lp-white);
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--lp-transition);
}

.lp-cta-btn:hover {
    background: var(--lp-accent-hover);
}

/* Hero Section */
.lp-hero {
    position: relative;
    background: linear-gradient(135deg, rgba(15, 35, 65, 0.95) 0%, rgba(0, 90, 171, 0.9) 100%), 
                url('images/huace/封面.jpg') center/cover no-repeat;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    color: var(--lp-white);
}

.lp-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 35, 65, 0.7);
}

.lp-hero-content {
    position: relative;
    z-index: 2;
    max-width: 1450px;
    text-align: center;
}

.lp-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.lp-hero-badge i {
    color: var(--lp-accent);
}

.lp-hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.lp-hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    opacity: 0.95;
}

.lp-hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.lp-stat-item {
    text-align: center;
}

.lp-stat-number {
    font-size: 3rem;
    font-weight: 900;
    color: var(--lp-accent);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.lp-stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

.lp-hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.lp-trust-badges {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.lp-trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.lp-trust-item i {
    color: var(--lp-accent);
}

/* Video Section */
.lp-video-section {
    padding: 5rem 0;
    background: var(--lp-light);
}

.lp-video-wrapper {
    max-width: 1450px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--lp-shadow);
}

.lp-video-player {
    width: 100%;
    display: block;
}

/* Why Choose Us Section */
.lp-why-choose {
    padding: 5rem 0;
    background: var(--lp-white);
}

.lp-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.lp-feature-card {
    background: var(--lp-white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--lp-shadow);
    transition: var(--lp-transition);
    border: 1px solid var(--lp-border);
}

.lp-feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--lp-shadow-hover);
    border-color: var(--lp-accent);
}

.lp-feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--lp-accent) 0%, var(--lp-accent-hover) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.lp-feature-icon i {
    font-size: 2rem;
    color: var(--lp-white);
}

.lp-feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--lp-primary);
    margin-bottom: 1rem;
}

.lp-feature-card p {
    color: var(--lp-gray);
    line-height: 1.7;
}

/* Products Section */
.lp-products {
    padding: 5rem 0;
    background: var(--lp-light);
}

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

/* Products 4 Columns Layout */
.lp-products-grid.lp-products-four-col {
    grid-template-columns: repeat(4, 1fr);
}

.lp-products-grid.lp-products-four-col .lp-product-content {
    padding: 1.5rem;
}

.lp-products-grid.lp-products-four-col .lp-product-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.lp-products-grid.lp-products-four-col .lp-product-desc {
    font-size: 0.9rem;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.lp-products-grid.lp-products-four-col .lp-product-specs {
    padding: 1rem;
    margin-bottom: 1rem;
}

.lp-products-grid.lp-products-four-col .lp-spec-item {
    margin-bottom: 0.5rem;
}

.lp-products-grid.lp-products-four-col .lp-spec-item span {
    font-size: 0.85rem;
}

.lp-products-grid.lp-products-four-col .lp-product-features ul {
    margin-bottom: 1rem;
}

.lp-products-grid.lp-products-four-col .lp-product-features li {
    font-size: 0.85rem;
    margin-bottom: 0.4rem;
}

.lp-product-card {
    background: var(--lp-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--lp-shadow);
    transition: var(--lp-transition);
    border: 1px solid var(--lp-border);
    position: relative;
}

.lp-product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--lp-shadow-hover);
}

.lp-product-card.lp-product-featured {
    border: 2px solid var(--lp-accent);
}

.lp-product-ribbon {
    position: absolute;
    top: 20px;
    right: -35px;
    background: var(--lp-accent);
    color: var(--lp-white);
    padding: 0.5rem 3rem;
    transform: rotate(45deg);
    font-weight: 600;
    font-size: 0.875rem;
    z-index: 10;
}

.lp-product-image {
    position: relative;
    height: 280px;
    overflow: hidden;
}

.lp-product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--lp-transition);
}

.lp-product-card:hover .lp-product-image img {
    transform: scale(1.05);
}

.lp-product-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--lp-accent);
    color: var(--lp-white);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.875rem;
}

.lp-product-content {
    padding: 2rem;
}

.lp-product-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--lp-primary);
    margin-bottom: 1rem;
}

.lp-product-desc {
    color: var(--lp-gray);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.lp-product-specs {
    background: var(--lp-light);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.lp-spec-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.lp-spec-item:last-child {
    margin-bottom: 0;
}

.lp-spec-item i {
    color: var(--lp-accent);
    width: 20px;
}

.lp-spec-item span {
    color: var(--lp-dark);
    font-size: 0.95rem;
}

.lp-spec-item strong {
    color: var(--lp-primary);
}

.lp-product-features ul {
    list-style: none;
    margin-bottom: 1.5rem;
}

.lp-product-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
    color: var(--lp-dark);
}

.lp-product-features li i {
    color: var(--lp-accent);
}

.lp-product-cta {
    display: block;
    text-align: center;
    background: var(--lp-primary);
    color: var(--lp-white);
    padding: 1rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--lp-transition);
}

.lp-product-cta:hover {
    background: var(--lp-secondary);
}

.lp-product-cta.lp-cta-primary {
    background: linear-gradient(135deg, var(--lp-accent) 0%, var(--lp-accent-hover) 100%);
}

/* Product Buttons Container */
.lp-product-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1rem;
}

.lp-product-buttons .lp-product-cta {
    width: 100%;
    display: inline-block;
    text-align: center;
    padding: 0.875rem 1rem;
    font-size: 0.95rem;
}

.lp-product-cta-secondary {
    background: transparent;
    color: var(--lp-primary);
    border: 2px solid var(--lp-primary);
}

.lp-product-cta-secondary:hover {
    background: var(--lp-primary);
    color: var(--lp-white);
}

/* Applications Section */
.lp-applications {
    padding: 5rem 0;
    background: var(--lp-white);
}

.lp-applications-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.lp-apps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    flex: 1;
    transition: var(--lp-transition);
}

.lp-app-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: var(--lp-white);
    border: 2px solid var(--lp-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--lp-transition);
    z-index: 10;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.lp-app-nav-btn:hover {
    background: var(--lp-accent);
    border-color: var(--lp-accent);
    color: var(--lp-white);
    box-shadow: 0 4px 20px rgba(255, 102, 0, 0.3);
}

.lp-app-nav-btn i {
    font-size: 1.25rem;
}

.lp-app-prev {
    left: -25px;
}

.lp-app-next {
    right: -25px;
}

.lp-app-nav-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.lp-app-card {
    background: var(--lp-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--lp-shadow);
    transition: var(--lp-transition);
    min-height: 450px;
    display: flex;
    flex-direction: column;
}

.lp-app-image {
    height: 300px;
    overflow: hidden;
}

.lp-app-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--lp-transition);
}

.lp-app-card:hover .lp-app-image img {
    transform: scale(1.05);
}

.lp-app-content {
    padding: 2rem;
}

.lp-app-content h3 {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--lp-primary);
    margin-bottom: 1rem;
}

.lp-app-content p {
    color: var(--lp-gray);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.lp-app-list {
    list-style: none;
}

.lp-app-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: var(--lp-dark);
}

.lp-app-list li i {
    color: var(--lp-accent);
}

.lp-app-view-more {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
    padding: 0.625rem 1.25rem;
    background: transparent;
    color: var(--lp-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 600;
    border: 2px solid var(--lp-secondary);
    border-radius: 6px;
    transition: var(--lp-transition);
}

.lp-app-view-more:hover {
    background: var(--lp-secondary);
    color: var(--lp-white);
    transform: translateX(4px);
}

.lp-app-view-more i {
    transition: var(--lp-transition);
}

.lp-app-view-more:hover i {
    transform: translateX(4px);
}

/* Production Line Section */
.lp-production-line {
    padding: 5rem 0;
    background: var(--lp-light);
}

.lp-production-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.lp-production-features {
    list-style: none;
    margin: 2rem 0;
}

.lp-production-features li {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.lp-production-features li i {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--lp-accent) 0%, var(--lp-accent-hover) 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--lp-white);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.lp-production-features li div h4 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--lp-primary);
    margin-bottom: 0.5rem;
}

.lp-production-features li div p {
    color: var(--lp-gray);
    line-height: 1.6;
}

.lp-production-images {
    width: 100%;
}

/* Production Gallery Grid */
.lp-prod-gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    width: 100%;
}

.lp-prod-gallery-grid img {
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: 8px;
    box-shadow: var(--lp-shadow);
    transition: var(--lp-transition);
    object-fit: cover;
    cursor: pointer;
}

.lp-prod-gallery-grid img:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: var(--lp-shadow-hover);
}

/* Testimonials Section */
.lp-testimonials {
    padding: 5rem 0;
    background: var(--lp-white);
}

.lp-testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.lp-testimonial-card {
    background: var(--lp-white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--lp-shadow);
    border: 1px solid var(--lp-border);
    transition: var(--lp-transition);
}

.lp-testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--lp-shadow-hover);
}

.lp-testimonial-rating {
    margin-bottom: 1rem;
}

.lp-testimonial-rating i {
    color: #ffc107;
    margin-right: 0.25rem;
}

.lp-testimonial-text {
    color: var(--lp-dark);
    font-style: italic;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.lp-author-info strong {
    display: block;
    color: var(--lp-primary);
    margin-bottom: 0.25rem;
}

.lp-author-info span {
    color: var(--lp-gray);
    font-size: 0.875rem;
}

/* CTA Banner */
.lp-cta-banner {
    position: relative;
    background: linear-gradient(135deg, var(--lp-primary) 0%, var(--lp-secondary) 100%);
    padding: 5rem 0;
    color: var(--lp-white);
}

.lp-cta-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('images/huace/78.jpg') center/cover;
    opacity: 0.1;
}

.lp-cta-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.lp-cta-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.lp-cta-content p {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    opacity: 0.95;
}

.lp-cta-banner-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1450px;
    margin: 0 auto;
}

.lp-cta-stat {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: 12px;
}

.lp-cta-stat i {
    font-size: 2rem;
    color: var(--lp-accent);
}

.lp-cta-stat div {
    text-align: left;
}

.lp-cta-stat strong {
    display: block;
    margin-bottom: 0.25rem;
}

.lp-cta-stat a {
    color: var(--lp-white);
    text-decoration: none;
    transition: var(--lp-transition);
}

.lp-cta-stat a:hover {
    color: var(--lp-accent);
}

/* Contact Section */
.lp-contact {
    padding: 5rem 0;
    background: var(--lp-light);
}

.lp-contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.lp-contact-cards {
    display: grid;
    gap: 1rem;
    margin-bottom: 2rem;
}

.lp-contact-card {
    display: flex;
    gap: 1rem;
    background: var(--lp-white);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: var(--lp-transition);
}

.lp-contact-card:hover {
    box-shadow: var(--lp-shadow);
}

.lp-contact-card i {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--lp-accent) 0%, var(--lp-accent-hover) 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--lp-white);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.lp-contact-card h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--lp-primary);
    margin-bottom: 0.25rem;
}

.lp-contact-card p,
.lp-contact-card a {
    color: var(--lp-gray);
    text-decoration: none;
    transition: var(--lp-transition);
}

.lp-contact-card a:hover {
    color: var(--lp-accent);
}

.lp-contact-benefits {
    background: var(--lp-white);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.lp-contact-benefits h4 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--lp-primary);
    margin-bottom: 1rem;
}

.lp-contact-benefits ul {
    list-style: none;
}

.lp-contact-benefits li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--lp-dark);
}

.lp-contact-benefits li i {
    color: var(--lp-accent);
}

.lp-form-container {
    background: var(--lp-white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--lp-shadow);
}

.lp-form-container h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--lp-primary);
    margin-bottom: 0.5rem;
}

.lp-form-container > p {
    color: var(--lp-gray);
    margin-bottom: 2rem;
}

.lp-form-group {
    margin-bottom: 1.5rem;
}

.lp-form-group label {
    display: block;
    font-weight: 600;
    color: var(--lp-primary);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.lp-form-group input,
.lp-form-group select,
.lp-form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--lp-border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--lp-transition);
}

.lp-form-group input:focus,
.lp-form-group select:focus,
.lp-form-group textarea:focus {
    outline: none;
    border-color: var(--lp-accent);
    box-shadow: 0 0 0 3px rgba(255, 102, 0, 0.1);
}

.lp-form-submit {
    width: 100%;
    background: linear-gradient(135deg, var(--lp-accent) 0%, var(--lp-accent-hover) 100%);
    color: var(--lp-white);
    padding: 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--lp-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.lp-form-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(255, 102, 0, 0.4);
}

/* Footer */
.lp-footer {
    background: var(--lp-primary);
    color: var(--lp-white);
    padding: 4rem 0 2rem;
}

.lp-footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.lp-footer-logo img {
    height: 60px;
    margin-bottom: 1rem;
}

.lp-footer-column p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.lp-footer-social {
    display: flex;
    gap: 1rem;
}

.lp-footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--lp-white);
    text-decoration: none;
    transition: var(--lp-transition);
}

.lp-footer-social a:hover {
    background: var(--lp-accent);
}

.lp-footer-column h4 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--lp-white);
}

.lp-footer-column ul {
    list-style: none;
}

.lp-footer-column ul li {
    margin-bottom: 0.75rem;
}

.lp-footer-column ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--lp-transition);
}

.lp-footer-column ul li a:hover {
    color: var(--lp-accent);
}

.lp-footer-contact li {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.lp-footer-contact li i {
    color: var(--lp-accent);
    margin-top: 0.25rem;
}

.lp-footer-contact li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--lp-transition);
}

.lp-footer-contact li a:hover {
    color: var(--lp-accent);
}

.lp-footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .lp-hero-title {
        font-size: 3rem;
    }
    
    .lp-features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Products 4列在中等屏幕上改为3列 */
    .lp-products-grid.lp-products-four-col {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .lp-products-grid.lp-products-four-col .lp-product-card:nth-child(4) {
        grid-column: span 1;
    }
}

@media (max-width: 992px) {
    .lp-hero-title {
        font-size: 2.5rem;
    }
    
    .lp-hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .lp-products-grid {
        grid-template-columns: 1fr;
    }
    
    /* Products 4列在平板上改为2列 */
    .lp-products-grid.lp-products-four-col {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .lp-apps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .lp-production-grid {
        grid-template-columns: 1fr;
    }
    
    .lp-testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .lp-contact-grid {
        grid-template-columns: 1fr;
    }
    
    .lp-footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* 应用切换按钮调整 */
    .lp-app-prev {
        left: -15px;
    }
    
    .lp-app-next {
        right: -15px;
    }
    
    .lp-app-nav-btn {
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .lp-header-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    /* Navigation Menu Responsive */
    .lp-nav-menu {
        width: 100%;
        margin: 0;
        order: 3;
    }
    
    .lp-nav-list {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.25rem;
    }
    
    .lp-nav-link {
        padding: 0.5rem 0.75rem;
        font-size: 0.85rem;
    }
    
    .lp-header-contact {
        width: 100%;
        justify-content: space-between;
    }
    
    .lp-phone span {
        display: none;
    }
    
    .lp-hero {
        min-height: auto;
        padding: 3rem 1.5rem;
    }
    
    .lp-hero-title {
        font-size: 2rem;
    }
    
    .lp-hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .lp-stat-number {
        font-size: 2rem;
    }
    
    .lp-hero-cta {
        flex-direction: column;
    }
    
    .lp-cta-primary,
    .lp-cta-secondary {
        width: 100%;
        text-align: center;
    }
    
    .lp-trust-badges {
        flex-direction: column;
        gap: 1rem;
    }
    
    .lp-features-grid {
        grid-template-columns: 1fr;
    }
    
    /* Products 在小屏幕上单列 */
    .lp-products-grid,
    .lp-products-grid.lp-products-four-col {
        grid-template-columns: 1fr;
    }
    
    /* Product Buttons Responsive - 移动端减小间距 */
    .lp-product-buttons {
        gap: 0.5rem;
    }
    
    .lp-apps-grid {
        grid-template-columns: 1fr;
    }
    
    /* Production Gallery Grid Responsive */
    .lp-prod-gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* 移动端隐藏切换按钮，改为垂直排列 */
    .lp-applications-wrapper {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .lp-app-nav-btn {
        position: static;
        transform: none;
        width: 100%;
        padding: 1rem;
        border-radius: 8px;
        display: none; /* 移动端不使用左右切换 */
    }
    
    .lp-apps-grid {
        display: flex;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        gap: 1rem;
        padding-bottom: 1rem;
    }
    
    .lp-app-card {
        flex: 0 0 85%;
        scroll-snap-align: start;
        min-height: auto;
    }
    
    .lp-testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .lp-cta-banner-stats {
        grid-template-columns: 1fr;
    }
    
    .lp-section-container {
        padding: 0 1.5rem;
    }
    
    .lp-section-header h2 {
        font-size: 2rem;
    }
    
    .lp-footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .lp-hero-title {
        font-size: 1.75rem;
    }
    
    .lp-hero-subtitle {
        font-size: 1rem;
    }
    
    .lp-stat-number {
        font-size: 1.75rem;
    }
    
    .lp-product-image {
        height: 220px;
    }
    
    /* Production Gallery Grid - Single column on very small screens */
    .lp-prod-gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .lp-form-container {
        padding: 1.5rem;
    }
    
    .whatsapp-float {
        width: 50px;
        height: 50px;
        font-size: 1.75rem;
        bottom: 20px;
        right: 20px;
    }
}

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

.lp-feature-card,
.lp-product-card,
.lp-app-card,
.lp-testimonial-card {
    animation: fadeInUp 0.6s ease-out;
}