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

body {
    position: relative;
}

a, a:link, a:visited, a:hover, a:active {
    text-decoration: none;
}

:root {
    --primary-gradient: linear-gradient(135deg, #00B4D8 0%, #9D4EDD 100%);
    --primary-color: #00B4D8;
    --secondary-color: #9D4EDD;
    --dark-bg: #0a0a1a;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
}

html {
    height: 100%;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    overflow-x: hidden;
    margin: 0;
    padding: 0;
    height: 100%;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 26, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--card-border);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
}

.logo i {
    font-size: 28px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: #00B4D8;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
    position: relative;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 16px;
    font-weight: 500;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.dropdown {
    position: relative;
}

.dropdown-content {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: rgba(10, 10, 26, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 10px 0;
    min-width: 160px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

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

.dropdown-content li {
    padding: 0;
}

.dropdown-content a {
    display: block;
    padding: 12px 20px;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 14px;
    transition: all 0.3s ease;
}

.dropdown-content a:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.contact-btn {
    background: var(--primary-gradient);
    border: none;
    color: white;
    padding: 12px 28px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.contact-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 180, 216, 0.4);
}

.contact-btn:hover::before {
    left: 100%;
}

.mobile-only { display: none; }
.desktop-only { display: inline-flex; }
.phone-text { font-size: 14px; }

@media (max-width: 768px) {
    .mobile-only { display: inline-flex; }
    .desktop-only { display: none; }
    .contact-tooltip { right: 10px; }
}

.contact-qr {
    position: relative;
}

.contact-tooltip {
    position: absolute;
    top: 100%;
    right: 30px;
    margin-top: 10px;
    background: rgba(20, 20, 40, 0.98);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 8px 0;
    display: none;
    min-width: 160px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    z-index: 1001;
}

.contact-tooltip.show {
    display: block;
}

.contact-tooltip::before {
    content: '';
    position: absolute;
    top: -8px;
    right: 40px;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid rgba(20, 20, 40, 0.98);
}

.tooltip-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s;
}

.tooltip-item:hover {
    background: rgba(0, 180, 216, 0.1);
    color: #00B4D8;
}

.tooltip-item i {
    font-size: 16px;
    width: 20px;
    text-align: center;
}

.copy-toast {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.8);
    color: #fff;
    padding: 12px 30px;
    border-radius: 8px;
    font-size: 14px;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.copy-toast.show {
    opacity: 1;
}

.hero-section {
    min-height: 100vh;
    height: 100vh;
    width: 100vw;
    position: relative;
    overflow: hidden;
    margin: 0;
    padding: 0;
    top: 0;
    left: 0;
}

.slideshow-container {
    width: 100%;
    height: 100%;
    position: relative;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
}

.slide.active {
    opacity: 1;
}

.slide img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 180, 216, 0.2) 0%, rgba(157, 78, 221, 0.2) 100%);
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 2;
}

.slide-content h1 {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 20px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 60px rgba(0, 180, 216, 0.5);
}

.slide-content p {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-btn {
    background: var(--primary-gradient);
    border: none;
    color: white;
    padding: 16px 40px;
    border-radius: 40px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

a.cta-btn {
    text-decoration: none;
    line-height: 1;
}

.cta-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.6s ease;
}

.cta-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 180, 216, 0.5), 0 0 30px rgba(157, 78, 221, 0.3);
}

.cta-btn:hover::before {
    left: 100%;
}

.slide-indicators {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 15px;
    z-index: 2;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    width: 30px;
    border-radius: 6px;
    background: var(--primary-gradient);
    box-shadow: 0 0 15px rgba(0, 180, 216, 0.6);
}

.prev-btn,
.next-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    z-index: 2;
    transition: all 0.3s ease;
}

.prev-btn {
    left: 30px;
}

.next-btn {
    right: 30px;
}

.prev-btn:hover,
.next-btn:hover {
    background: var(--primary-gradient);
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 0 20px rgba(0, 180, 216, 0.5);
}

.section-header {
    text-align: center;
    padding: 60px 0 40px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header h2 a {
    text-decoration: none;
    color: inherit;
}

.section-header p {
    font-size: 16px;
    color: var(--text-secondary);
}

.products-section {
    padding: 0 30px 80px;
}

.products-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.4s ease;
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.product-card:hover::before {
    transform: scaleX(1);
}

.product-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 180, 216, 0.4);
    box-shadow: 0 20px 40px rgba(0, 180, 216, 0.15);
}

.product-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: 15px 0;
}

.feature-tag {
    background: rgba(0, 180, 216, 0.1);
    color: #00B4D8;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    border: 1px solid rgba(0, 180, 216, 0.2);
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 8px;
}

.feature-tag i {
    color: #00ff88;
    font-size: 12px;
}

.product-image {
    width: 100%;
    height: 200px;
    position: relative;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.5) 100%);
    pointer-events: none;
}

.product-content {
    padding: 25px;
}

.product-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

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

.tags-row {
    display: flex;
    gap: 10px;
    margin-bottom: 12px;
}

.tag {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 6px 14px;
    font-size: 12px;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.product-card:hover .tag {
    background: rgba(0, 180, 216, 0.2);
    border-color: rgba(0, 180, 216, 0.4);
    color: var(--text-primary);
}

.news-section {
    padding: 0 30px 80px;
    background: rgba(255, 255, 255, 0.02);
}

.news-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.news-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s ease;
    cursor: pointer;
}

.news-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.news-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 180, 216, 0.4);
    box-shadow: 0 15px 35px rgba(0, 180, 216, 0.12);
}

.news-image {
    width: 100%;
    height: 160px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-card:hover .news-image img {
    transform: scale(1.1);
}

.news-content {
    padding: 20px;
}

.news-date {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 10px;
    display: block;
}

.news-content h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
    line-height: 1.4;
    transition: color 0.3s ease;
}

.news-card:hover .news-content h3 {
    color: var(--primary-color);
}

.news-content p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.cases-section {
    padding: 0 30px 80px;
}

.cases-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.case-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.4s ease;
    position: relative;
    cursor: pointer;
}

.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: var(--primary-gradient);
    opacity: 0;
    transition: all 0.4s ease;
}

.case-card:hover::before {
    width: 5px;
    opacity: 1;
}

.case-card:hover {
    transform: translateY(-10px);
    border-color: rgba(157, 78, 221, 0.4);
    box-shadow: 0 20px 40px rgba(157, 78, 221, 0.15);
}

.case-image {
    width: 100%;
    height: 180px;
    position: relative;
    overflow: hidden;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.case-card:hover .case-image img {
    transform: scale(1.1);
}

.case-content {
    padding: 20px;
}

.case-content h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.case-content p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.case-tags {
    display: flex;
    gap: 10px;
}

.case-tag {
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 500;
}

.case-tag.industry {
    background: rgba(0, 180, 216, 0.2);
    color: var(--primary-color);
    border: 1px solid rgba(0, 180, 216, 0.3);
}

.case-tag.product {
    background: rgba(157, 78, 221, 0.2);
    color: var(--secondary-color);
    border: 1px solid rgba(157, 78, 221, 0.3);
}

.about-section {
    padding: 80px 30px;
    background: rgba(255, 255, 255, 0.02);
}

.about-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.about-left h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 30px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.about-item h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.about-item p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.truncate-text {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.learn-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #00B4D8;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    margin-top: 10px;
    transition: all 0.3s;
}

.learn-more:hover {
    color: #9D4EDD;
    gap: 12px;
}

.learn-more i {
    font-size: 12px;
    transition: transform 0.3s;
}

.learn-more:hover i {
    transform: translateX(4px);
}

.about-right {
    display: flex;
    align-items: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    width: 100%;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 25px;
    display: flex;
    align-items: center;
    gap: 18px;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 180, 216, 0.4);
    box-shadow: 0 10px 25px rgba(0, 180, 216, 0.15);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 14px;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    position: relative;
    overflow: hidden;
}

.stat-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.stat-card:hover .stat-icon::before {
    left: 100%;
}

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 24px;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
}

.footer {
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid var(--card-border);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 60px 30px;
    display: flex;
    flex-wrap: nowrap;
    gap: 40px;
}

.footer-section {
    flex: 1;
    min-width: 0;
}

.footer-section h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-section ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-section ul li a {
    text-decoration: none;
    font-size: 14px;
    color: var(--text-muted);
    transition: all 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding: 25px 30px 75px;
    border-top: 1px solid var(--card-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.social-links {
    display: flex;
    gap: 15px;
    position: relative;
    padding-bottom: 20px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 16px;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--primary-gradient);
    border-color: transparent;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 180, 216, 0.4);
}

.social-icon{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.05);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.6);text-decoration:none;transition:all .3s ease}
.social-icon:hover{background:linear-gradient(135deg,#00B4D8,#9D4EDD);color:#fff}
.social-icon.video:hover{background:linear-gradient(135deg,#07C160,#4CAF50)}
.social-icon.douyin:hover{background:linear-gradient(135deg,#000000,#1A1A1A)}
.social-icon.redbook:hover{background:linear-gradient(135deg,#FF2442,#FF6B81)}
.social-icon.official:hover{background:linear-gradient(135deg,#07C160,#4CAF50)}

.social-item {
    position: relative;
}

.float-qr {
    position: fixed;
    bottom: 30px;
    right: 288px;
    width: 160px;
    height: 160px;
    background: #fff;
    padding: 10px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    z-index: 10000;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* ========== 响应式设计 - 手机端适配 ========== */

/* 平板设备 (768px - 1024px) */
@media (max-width: 1024px) {
    .nav-container {
        padding: 0 20px;
    }
    
    .nav-links {
        gap: 20px;
    }
    
    .nav-link {
        font-size: 14px;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .about-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-content {
        flex-wrap: wrap;
        gap: 30px;
    }
}

/* 手机设备 (最大 768px) */
@media (max-width: 768px) {
    /* 导航栏 - 不创建层叠上下文 */
    .navbar {
        background: rgba(10, 10, 26, 0.98);
        z-index: auto !important;
        backdrop-filter: none !important;
    }
    
    .nav-container {
        height: 60px;
        padding: 0 15px;
        position: relative;
        z-index: 100001 !important;
    }
    
    .logo {
        font-size: 18px;
        gap: 8px;
        z-index: 100002 !important;
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }
    
    .logo i {
        font-size: 22px;
    }
    
    /* 导航菜单 - 最高层级 */
    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(10, 10, 26, 0.98);
        flex-direction: column;
        padding: 80px 20px 20px;
        gap: 0;
        overflow-y: auto;
        z-index: 99999 !important;
    }
    
    .nav-links.show {
        display: flex;
    }
    
    .nav-links li {
        padding: 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-link {
        display: block;
        padding: 15px 0;
        font-size: 16px;
        color: var(--text-primary);
    }
    
    .nav-link::after {
        display: none;
    }
    
    /* 下拉菜单 - 手机端强制显示 */
    .dropdown-content {
        display: block !important;
        position: static !important;
        opacity: 1 !important;
        visibility: visible !important;
        transform: none !important;
        background: transparent !important;
        border: none !important;
        padding: 0 0 15px 20px !important;
        box-shadow: none !important;
        z-index: 99998 !important;
        min-width: auto;
        backdrop-filter: none !important;
        border-radius: 0;
    }
    
    .dropdown:hover .dropdown-content {
        opacity: 1 !important;
        visibility: visible !important;
    }
    
    .dropdown-content a {
        padding: 10px 0;
        font-size: 14px;
        color: var(--text-secondary);
    }
    
    .dropdown-content li {
        border-bottom: none;
    }
    
    /* 确保导航菜单覆盖在banner之上 */
    .hero-section {
        z-index: 1 !important;
    }
    
    .slide-content {
        z-index: 1 !important;
    }
    
    .slide-indicators {
        z-index: 1 !important;
    }
    
    .prev-btn,
    .next-btn {
        z-index: 1 !important;
    }
    
    .slide {
        z-index: 1 !important;
    }
    
    .slideshow-container {
        z-index: 1 !important;
    }
    
    /* 汉堡菜单按钮 */
    .menu-toggle {
        display: flex;
        flex-direction: column;
        gap: 5px;
        cursor: pointer;
        padding: 5px;
        z-index: 100002 !important;
        position: absolute;
        left: 15px;
        top: 50%;
        transform: translateY(-50%);
    }
    
    /* 电话按钮 */
    .contact-btn.mobile-only {
        position: absolute;
        right: 15px;
        top: 50%;
        transform: translateY(-50%);
        display: inline-flex !important;
        z-index: 100002 !important;
    }
    
    .menu-toggle span {
        width: 24px;
        height: 2px;
        background: var(--text-primary);
        transition: all 0.3s ease;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    /* Hero区域 */
    .hero-section {
        height: 100vh;
        min-height: 500px;
    }
    
    .slide-content {
        width: 90%;
        padding: 0 20px;
    }
    
    .slide-content h1 {
        font-size: 28px;
        margin-bottom: 15px;
        line-height: 1.3;
    }
    
    .slide-content p {
        font-size: 14px;
        margin-bottom: 25px;
        padding: 0 10px;
    }
    
    .cta-btn {
        padding: 12px 28px;
        font-size: 14px;
        border-radius: 30px;
    }
    
    .slide-indicators {
        bottom: 80px;
        gap: 10px;
    }
    
    .indicator {
        width: 8px;
        height: 8px;
    }
    
    .indicator.active {
        width: 24px;
        height: 8px;
    }
    
    .prev-btn,
    .next-btn {
        width: 40px;
        height: 40px;
        font-size: 16px;
        top: 45%;
    }
    
    .prev-btn {
        left: 10px;
    }
    
    .next-btn {
        right: 10px;
    }
    
    /* Section标题 */
    .section-header {
        padding: 40px 15px 30px;
    }
    
    .section-header h2 {
        font-size: 24px;
        margin-bottom: 10px;
    }
    
    .section-header p {
        font-size: 14px;
    }
    
    /* 产品区域 */
    .products-section {
        padding: 0 15px 50px;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .product-card {
        border-radius: 16px;
    }
    
    .product-image {
        height: 180px;
    }
    
    .product-content {
        padding: 20px;
    }
    
    .product-content h3 {
        font-size: 18px;
        margin-bottom: 10px;
    }
    
    .product-content p {
        font-size: 13px;
        margin-bottom: 15px;
        line-height: 1.6;
    }
    
    .tags-row {
        flex-wrap: wrap;
        gap: 8px;
        margin-bottom: 8px;
    }
    
    .tag {
        padding: 5px 10px;
        font-size: 11px;
    }
    
    /* 新闻区域 */
    .news-section {
        padding: 0 15px 50px;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .news-card {
        border-radius: 12px;
    }
    
    .news-image {
        height: 140px;
    }
    
    .news-content {
        padding: 15px;
    }
    
    .news-content h3 {
        font-size: 15px;
        margin-bottom: 8px;
    }
    
    .news-content p {
        font-size: 12px;
        line-height: 1.5;
    }
    
    /* 案例区域 */
    .cases-section {
        padding: 0 15px 50px;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .case-card {
        border-radius: 16px;
    }
    
    .case-image {
        height: 160px;
    }
    
    .case-content {
        padding: 15px;
    }
    
    .case-content h3 {
        font-size: 16px;
        margin-bottom: 8px;
    }
    
    .case-content p {
        font-size: 12px;
        margin-bottom: 12px;
    }
    
    .case-tags {
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .case-tag {
        padding: 4px 10px;
        font-size: 11px;
    }
    
    /* 关于区域 */
    .about-section {
        padding: 50px 15px;
    }
    
    .about-left h2 {
        font-size: 24px;
        margin-bottom: 20px;
    }
    
    .about-item h3 {
        font-size: 16px;
        margin-bottom: 8px;
    }
    
    .about-item p {
        font-size: 13px;
        line-height: 1.6;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .stat-card {
        padding: 20px;
        gap: 15px;
    }
    
    .stat-icon {
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
    
    .stat-number {
        font-size: 20px;
    }
    
    .stat-label {
        font-size: 12px;
    }
    
    /* Footer */
    .footer-content {
        flex-direction: column;
        gap: 25px;
        padding: 40px 15px;
    }
    
    .footer-section h3 {
        font-size: 15px;
        margin-bottom: 15px;
    }
    
    .footer-section ul li a {
        font-size: 13px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        padding: 20px 15px 60px;
        text-align: center;
    }
    
    .footer-bottom p {
        font-size: 12px;
        order: 2;
    }
    
    .social-links {
        order: 1;
        justify-content: center;
        gap: 12px;
    }
    
    .social-links a {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }
    
    /* 联系按钮 */
    .contact-btn {
        padding: 10px 20px;
        font-size: 13px;
    }
    
    .mobile-only {
        display: inline-flex !important;
    }
    
    .desktop-only {
        display: none !important;
    }
    
    /* 浮动二维码 - 手机端默认显示 */
    .float-qr {
        right: 15px !important;
        bottom: 100px !important;
        left: auto !important;
        top: auto !important;
        width: 140px !important;
        height: 140px !important;
        z-index: 9999 !important;
        display: flex !important;
        position: fixed !important;
        background: #fff !important;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3) !important;
        border-radius: 12px !important;
        padding: 10px !important;
        transform: none !important;
        margin: 0 !important;
    }
    
    /* 手机端隐藏二维码 */
    .float-qr.hidden {
        display: none !important;
    }
    
    .float-qr img {
        width: 120px;
        height: 120px;
    }
    
    /* 手机端关闭按钮优化 */
    .float-qr .close-btn {
        width: 36px !important;
        height: 36px !important;
        font-size: 24px !important;
        top: -12px !important;
        right: -12px !important;
        z-index: 10000 !important;
        background: #ff0000 !important;
        color: #fff !important;
        border-radius: 50% !important;
        border: none !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3) !important;
    }
}

/* 小屏手机 (最大 480px) */
@media (max-width: 480px) {
    .nav-container {
        height: 55px;
        padding: 0 12px;
    }
    
    .logo {
        font-size: 16px;
    }
    
    .logo i {
        font-size: 20px;
    }
    
    .slide-content h1 {
        font-size: 22px;
    }
    
    .slide-content p {
        font-size: 12px;
    }
    
    .cta-btn {
        padding: 10px 24px;
        font-size: 13px;
    }
    
    .section-header h2 {
        font-size: 20px;
    }
    
    .product-image {
        height: 160px;
    }
    
    .product-content h3 {
        font-size: 16px;
    }
    
    .news-image {
        height: 120px;
    }
    
    .case-image {
        height: 140px;
    }
}

/* 横屏手机 */
@media (max-width: 768px) and (orientation: landscape) {
    .hero-section {
        min-height: 100vh;
    }
    
    .slide-content {
        top: 45%;
    }
    
    .slide-content h1 {
        font-size: 24px;
    }
    
    .slide-indicators {
        bottom: 20px;
    }
}

/* 浮动二维码样式 */
.float-qr .close-btn {
    position: absolute;
    top: -15px;
    right: -15px;
    background: #ff0000;
    border: none;
    color: #fff;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    z-index: 100003;
    padding: 0;
    font-family: Arial, sans-serif;
    font-weight: bold;
}

.float-qr .close-btn:hover {
    background: #cc0000;
    transform: scale(1.1);
}

.float-qr img {
    max-width: 100%;
    max-height: calc(100% - 30px);
    display: block;
}

.float-qr .qr-text {
    margin-top: 5px;
    color: #333;
    font-size: 12px;
    font-weight: 500;
    text-align: center;
}

.social-qr-popup {
    display: none;
    position: absolute;
    top: -280px;
    left: 0px;
    transform: translateX(0);
    background: #fff;
    padding: 15px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    z-index: 100;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.social-qr-popup .close-btn {
    position: absolute;
    top: -10px;
    right: -10px;
    background: none;
    border: none;
    color: #666;
    font-size: 24px;
    cursor: pointer;
    transition: color 0.3s ease;
}

.social-qr-popup .close-btn:hover {
    color: #ff4444;
}

.social-qr-popup img {
    width: 180px;
    height: 180px;
    display: block;
}

.social-qr-popup .qr-text {
    margin-top: 8px;
    color: #333;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
}

.copyright {
    display: flex;
    gap: 25px;
}

.copyright p {
    font-size: 13px;
    color: var(--text-muted);
}

@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    .slide-content h1 {
        font-size: 32px;
    }

    .slide-content p {
        font-size: 16px;
    }

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

    .about-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .footer-content {
        flex-wrap: wrap;
        gap: 30px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 20px;
    }

    .copyright {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}