:root {
    --primary: #1556bf;
    --primary-dark: #103f8f;
    --accent: #2f80ed;
    --accent-soft: #eaf2fe;
    --bg: #f6f8fc;
    --bg-soft: #eef2f8;
    --ink: #101a2c;
    --body: #475467;
    --muted: #7a899e;
    --line: #e6eaf1;
    --line-2: #d6dde8;
    --grad: linear-gradient(135deg, #1556bf 0%, #2f80ed 100%);
    --shadow-sm: 0 4px 16px rgba(16, 26, 44, .05);
    --shadow-md: 0 18px 40px rgba(16, 26, 44, .08);
}

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

body {
    font-family: 'HarmonyOS Sans SC', 'Microsoft YaHei', 'PingFang SC', 'Segoe UI', Arial, sans-serif;
    overflow-x: hidden;
    background-color: var(--bg);
    color: var(--body);
}

/* 毛玻璃基础样式 */
.glass {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.glass-dark {
    background: rgba(16, 26, 44, 0.82);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 艺术字标题样式 */
.art-title {
    color: var(--primary);
    -webkit-text-fill-color: var(--primary);
    text-shadow: 0 2px 8px rgba(21, 86, 191, 0.15);
}

@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 7px 0;
    transition: all 0.35s ease;
    box-shadow: 0 2px 20px rgba(16, 26, 44, 0.06);
    border-bottom: 1px solid var(--line);
    overflow: visible;
}

/* 滚动压缩状态：更紧凑、阴影更清晰 */
.navbar.is-scrolled {
    padding: 5px 0;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 6px 24px rgba(16, 26, 44, 0.1);
    border-bottom: 1px solid var(--line-2);
}

/* 粘稠导航栏容器 */
.gooey-nav {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    overflow: hidden;
}

.gooey-nav canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.gooey-nav-items {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
    position: relative;
    z-index: 1;
}

.gooey-nav-item {
    position: relative;
    padding: 6px 18px;
    cursor: pointer;
    font-family: 'HarmonyOS Sans SC', 'Microsoft YaHei', 'PingFang SC', 'Segoe UI', sans-serif;
    font-weight: 600;
    font-size: 15px;
    letter-spacing: 0.02em;
    color: var(--body);
    transition: color 0.3s ease, transform 0.3s ease;
    border-radius: 25px;
}

.gooey-nav-item:not(.nav-btn):hover {
    color: var(--primary);
    opacity: 1;
    transform: translateY(-1px);
}

.gooey-nav-item.active {
    color: var(--primary);
    opacity: 1;
    font-weight: 700;
}

.gooey-nav-item a {
    position: relative;
    text-decoration: none;
    color: inherit;
    display: block;
}

/* 导航项渐变下划线（参考官网导航交互） */
.gooey-nav-item:not(.nav-btn) a::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -2px;
    width: 0;
    height: 2.5px;
    border-radius: 2px;
    background: var(--grad);
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

.gooey-nav-item:not(.nav-btn):hover a::after,
.gooey-nav-item.active a::after {
    width: 100%;
}

/* 购买产品按钮（参考官网 CTA 按钮） */
.gooey-nav-item.nav-btn a {
    color: #fff !important;
    background: var(--grad);
    border-radius: 25px;
    padding: 8px 24px;
    box-shadow: 0 8px 20px rgba(21, 86, 191, 0.25);
    transition: all 0.3s ease;
}

.gooey-nav-item.nav-btn:hover a {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(21, 86, 191, 0.38);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 7px 50px;
    max-width: 1800px;
    margin: 0 auto;
}

.logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    cursor: pointer;
}

.logo-text {
    font-size: 28px;
    font-weight: bold;
    color: var(--ink);
    letter-spacing: 2px;
}

.logo-text::first-letter {
    color: var(--primary);
}

.logo-image {
    height: 32px;
    width: auto;
    object-fit: contain;
}

.logo-text-group {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1px;
}

.logo-chinese {
    font-size: 17px;
    font-weight: bold;
    color: var(--primary);
    letter-spacing: 2px;
    font-family: 'STKaiti', 'KaiTi', 'SimKai', serif;
    text-shadow: 0 2px 8px rgba(21, 86, 191, 0.08);
}

.logo-subtitle {
    font-size: 9px;
    color: var(--muted);
    letter-spacing: 1.5px;
    font-family: 'Georgia', 'Times New Roman', serif;
    font-style: italic;
    text-transform: uppercase;
    margin-top: 1px;
}

.logo-link {
    text-decoration: none;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 10px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 25px;
    align-items: center;
}

.navbar .nav-links .nav-item {
    text-decoration: none;
    color: var(--body);
    font-size: 14.5px;
    font-family: 'HarmonyOS Sans SC', 'Microsoft YaHei', 'PingFang SC', 'Segoe UI', sans-serif;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: all 0.3s;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    padding: 5px 14px;
    position: relative;
    border-radius: 10px;
    min-width: 80px;
    justify-content: center;
}

.nav-links .nav-item:hover {
    color: var(--primary);
    transform: translateY(-1px);
}

.navbar .nav-links .nav-item.active:not(.nav-btn) {
    color: var(--primary);
    font-weight: 700;
}

.nav-links .nav-item.active:not(.nav-btn) .nav-link {
    color: var(--primary);
    font-weight: 700;
}

.nav-links a.nav-item {
    text-decoration: none;
}

.navbar .nav-links .nav-item.nav-btn {
    color: #fff !important;
    font-weight: 700;
    background: var(--grad);
    border: none;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(21, 86, 191, 0.25);
}

.navbar .nav-links .nav-item.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(21, 86, 191, 0.38);
}

.navbar .nav-links .nav-link {
    text-decoration: none;
    color: var(--body);
    font-size: 14.5px;
    font-family: 'HarmonyOS Sans SC', 'Microsoft YaHei', 'PingFang SC', 'Segoe UI', sans-serif;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: all 0.3s;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.nav-links .nav-link:hover {
    color: var(--primary);
    transform: translateY(-1px);
}

.nav-links .dropdown {
    position: relative;
}

.nav-links .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 14px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    padding: 8px 0;
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.3s ease;
    z-index: 1000;
}

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

.nav-links .dropdown-item {
    display: block;
    padding: 10px 20px;
    color: var(--body);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    text-decoration: none;
}

.nav-links .dropdown-item:hover {
    background-color: var(--accent-soft);
    color: var(--primary);
}

.navbar .nav-links .dropdown.active .nav-link {
    color: var(--primary);
    font-weight: 600;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.contact-btn {
    background: var(--grad);
    border: none;
    padding: 10px 25px;
    color: #fff;
    font-weight: bold;
    font-family: 'Microsoft YaHei', 'Microsoft YaHei UI', sans-serif;
    cursor: pointer;
    transition: all 0.3s;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(21, 86, 191, 0.25);
}

.contact-btn:hover {
    background: linear-gradient(135deg, #103f8f 0%, #1e6fe0 100%);
    transform: translateY(-2px);
    box-shadow: 0 12px 26px rgba(21, 86, 191, 0.35);
}

.language {
    font-size: 14px;
    color: var(--muted);
    cursor: pointer;
    font-family: 'Microsoft YaHei', 'Microsoft YaHei UI', sans-serif;
    font-weight: bold;
}

.navbar .language {
    color: var(--ink);
}

/* 悬浮无人机样式 */
.floating-drone {
    position: fixed;
    right: 50px;
    top: 200px;
    z-index: 100;
    pointer-events: none;
}

.floating-drone .drone-image {
    width: 150px;
    height: auto;
    transform: rotate(-15deg);
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.2));
}

.hero {
    position: relative;
    height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}



.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(160deg, #0d1b2a 0%, #101a2c 55%, #1556bf 130%);
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: -50%;
    width: 200%;
    height: 100%;
    background: rgba(255, 255, 255, 0.02);
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(47, 128, 237, 0.06);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10;
}

.hero-title {
    font-size: 56px;
    color: #fff;
    font-weight: bold;
    margin-bottom: 20px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: 24px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.hero-btn {
    background: var(--grad);
    border: none;
    padding: 15px 50px;
    font-size: 18px;
    font-weight: bold;
    color: #fff;
    cursor: pointer;
    transition: all 0.3s;
    animation: fadeInUp 1s ease-out 0.6s both;
    border-radius: 12px;
    box-shadow: 0 12px 30px rgba(21, 86, 191, 0.35);
}

.hero-btn:hover {
    background: linear-gradient(135deg, #103f8f 0%, #1e6fe0 100%);
    transform: translateY(-3px);
    box-shadow: 0 16px 36px rgba(21, 86, 191, 0.45);
}

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

.hero-controls {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    max-width: 1200px;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 10;
}

.control-btn {
    width: 50px;
    height: 50px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.1);
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
}

.control-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--accent);
}

.control-btn.prev::before,
.control-btn.next::before {
    content: '';
    position: absolute;
    top: 50%;
    width: 10px;
    height: 10px;
    border-left: 2px solid #fff;
    border-bottom: 2px solid #fff;
}

.control-btn.prev::before {
    left: 20px;
    transform: translateY(-50%) rotate(45deg);
}

.control-btn.next::before {
    right: 20px;
    transform: translateY(-50%) rotate(-135deg);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    z-index: 20;
    opacity: 0.8;
    animation: fadeInUp 1s ease-out 1s both;
}

.scroll-indicator span {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.scroll-arrow {
    width: 20px;
    height: 30px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 10px;
    position: relative;
}

.scroll-arrow::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 2px;
    animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
        opacity: 0.7;
    }
    50% {
        transform: translateX(-50%) translateY(10px);
        opacity: 0.3;
    }
}

@media (max-width: 1200px) {
    .nav-links {
        display: none;
    }
    
    .hero-title {
        font-size: 40px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 15px 20px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-btn {
        padding: 12px 30px;
        font-size: 16px;
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
}

.section-title {
    text-align: center;
    font-size: 32px;
    font-weight: bold;
    font-family: 'Microsoft YaHei', 'Microsoft YaHei UI', sans-serif;
    margin-bottom: 40px;
    color: var(--ink);
}

.products {
    background: var(--bg);
}

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

.product-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: rgba(21, 86, 191, 0.2);
}

.product-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.product-info {
    padding: 20px;
}

.product-info h3 {
    font-size: 20px;
    color: var(--ink);
    margin-bottom: 10px;
}

.product-info p {
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 15px;
}

.product-btn {
    background: var(--grad);
    border: none;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: bold;
    color: #fff;
    cursor: pointer;
    transition: all 0.3s;
    border-radius: 10px;
}

.product-btn:hover {
    background: linear-gradient(135deg, #103f8f 0%, #1e6fe0 100%);
    transform: translateY(-2px);
}

.stats {
    background: #fff;
    color: var(--body);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
}

.stat-number {
    font-size: 48px;
    font-weight: bold;
    color: var(--primary);
    margin-bottom: 10px;
}

.stat-label {
    font-size: 16px;
    color: var(--muted);
}

.applications {
    background: #fff;
}

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

.app-card {
    text-align: center;
    padding: 30px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
}

.app-card:hover {
    background: #fff;
    box-shadow: var(--shadow-md);
    transform: translateY(-5px);
}

.app-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 15px;
    background: var(--grad);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: bold;
    font-size: 14px;
    box-shadow: 0 8px 18px rgba(21, 86, 191, 0.25);
}

.app-card h3 {
    font-size: 18px;
    color: var(--ink);
    margin-bottom: 10px;
}

.app-card p {
    font-size: 14px;
    color: var(--muted);
}

.clients {
    background: var(--bg);
}

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

.client-item {
    padding: 25px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 14px;
    border: 1px solid var(--line);
    text-align: center;
    font-size: 15px;
    color: var(--muted);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
}

.client-item:hover {
    color: var(--primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: rgba(21, 86, 191, 0.15);
}

.news {
    background: #fff;
}

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

.news-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: rgba(21, 86, 191, 0.15);
}

.news-image img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.news-content {
    padding: 20px;
}

.news-content h3 {
    font-size: 18px;
    color: var(--ink);
    margin-bottom: 10px;
}

.news-content p {
    font-size: 14px;
    color: var(--muted);
    margin-bottom: 10px;
}

.news-date {
    font-size: 12px;
    color: var(--primary);
}

.footer {
    margin-top: 40px;
    padding: 44px 0 50px;
    color: #7a899e;
    background: #101a2c;
}

.footer .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 24px;
    padding-bottom: 26px;
    margin-bottom: 22px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-brand .brand-mark {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: 10px;
    overflow: hidden;
    background: #fff;
    border: 1px solid rgba(255, 255, 255, 0.14);
    box-shadow: 0 4px 12px rgba(16, 26, 44, 0.3);
}

.footer-brand .brand-mark img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.footer-brand strong {
    color: #fff;
    font-size: 18px;
}

.footer-top nav {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-top nav .footer-link {
    color: rgba(255, 255, 255, 0.72);
    font-size: 14px;
    transition: 0.2s;
    cursor: pointer;
}

.footer-top nav .footer-link:hover {
    color: #fff;
}

.footer > .container > p {
    margin: 8px 0;
    font-size: 13px;
    line-height: 1.7;
}

.footer p a {
    color: rgba(255, 255, 255, 0.72);
}

.footer p a:hover {
    color: #fff;
}

@media (max-width: 992px) {
    .products-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid, .apps-grid, .clients-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .products-grid, .news-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid, .apps-grid, .clients-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

.page-header {
    position: relative;
    background: linear-gradient(135deg, #eaf2fe 0%, #f6f8fc 100%);
    color: var(--ink);
    padding: 88px 0 64px;
    text-align: center;
    overflow: hidden;
    border-bottom: 1px solid var(--line);
}

/* 页面顶部留白：移除重复的标题横幅后，为固定导航栏保留占位 */
.page-spacer {
    height: 72px;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(circle at 80% 20%, rgba(47, 128, 237, 0.1), transparent 45%);
    pointer-events: none;
}

.page-header h1 {
    font-size: clamp(30px, 4vw, 46px);
    margin-bottom: 14px;
    position: relative;
    z-index: 1;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: -0.01em;
}

.page-header p {
    font-size: 17px;
    color: var(--body);
    position: relative;
    z-index: 1;
    max-width: 720px;
    margin: 0 auto;
    line-height: 1.8;
}

.low-altitude-content {
    padding: 60px 0;
}

.scene-intro {
    margin-bottom: 40px;
    text-align: center;
}

.scene-intro p {
    color: var(--body);
    line-height: 1.8;
    margin-bottom: 15px;
}

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

.scene-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
}

.scene-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.scene-content {
    padding: 20px;
}

.scene-content h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--ink);
}

.scene-tags {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.scene-tags span {
    font-size: 14px;
    color: var(--muted);
}

.partners-content {
    padding: 60px 0;
}

.partners-intro {
    text-align: center;
    margin-bottom: 40px;
}

.partners-intro p {
    color: var(--body);
    line-height: 1.8;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.benefit-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    padding: 30px;
    border-radius: 18px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: rgba(21, 86, 191, 0.15);
}

.benefit-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto 15px;
    background: var(--grad);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: #fff;
    font-weight: bold;
    box-shadow: 0 8px 18px rgba(21, 86, 191, 0.22);
}

.benefit-card h4 {
    font-size: 16px;
    margin-bottom: 10px;
    color: var(--ink);
}

.benefit-card p {
    font-size: 14px;
    color: var(--muted);
}

.partners-requirements {
    margin-bottom: 40px;
}

.partners-requirements h3 {
    margin-bottom: 20px;
    font-size: 24px;
    color: var(--ink);
}

.partners-requirements ul {
    list-style: none;
}

.partners-requirements li {
    padding: 10px 0;
    color: var(--body);
    border-bottom: 1px solid var(--line);
}

.partners-contact {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 40px;
    border-radius: 18px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
}

.partners-contact h3 {
    margin-bottom: 20px;
    color: var(--ink);
}

.partners-contact p {
    color: var(--body);
    margin-bottom: 20px;
}

.partner-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--line-2);
    border-radius: 11px;
    font-size: 14px;
    background: var(--bg-soft);
    outline: none;
    transition: all 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(47, 128, 237, 0.12);
}

.form-group textarea {
    height: 100px;
}

.submit-btn {
    background: var(--grad);
    border: none;
    padding: 15px;
    font-size: 16px;
    font-weight: bold;
    color: #fff;
    cursor: pointer;
    border-radius: 11px;
    transition: all 0.3s;
    box-shadow: 0 10px 24px rgba(21, 86, 191, 0.25);
}

.submit-btn:hover {
    background: linear-gradient(135deg, #103f8f 0%, #1e6fe0 100%);
    transform: translateY(-2px);
}

.products-content {
    padding: 60px 0;
}

.base-section {
    margin-bottom: 60px;
}

.base-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    align-items: center;
}

.base-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 16px;
}

.base-info h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--ink);
}

.base-info p {
    color: var(--body);
    line-height: 1.8;
    margin-bottom: 20px;
}

.base-info ul {
    list-style: none;
}

.base-info li {
    padding: 8px 0;
    color: var(--body);
    position: relative;
    padding-left: 20px;
}

.base-info li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
}

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

.product-item {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.product-img img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

.product-detail {
    padding: 20px;
}

.product-detail h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.product-detail p {
    color: #666;
    font-size: 14px;
    margin-bottom: 15px;
}

.specs {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.specs span {
    font-size: 12px;
    color: #888;
}

.applications-content {
    padding: 60px 0;
}

.apps-grid-large {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.app-large-card {
    position: relative;
    height: 350px;
    border-radius: 8px;
    overflow: hidden;
}

.app-large-card.painting {
    background: url('https://trae-api-cn.mchost.guru/api/ide/v1/text_to_image?prompt=drone%20painting%20building%20industrial%20aerial&image_size=landscape_16_9') center/cover;
}

.app-large-card.cleaning {
    background: url('https://trae-api-cn.mchost.guru/api/ide/v1/text_to_image?prompt=drone%20cleaning%20building%20facade%20window&image_size=landscape_16_9') center/cover;
}

.app-large-card.logistics {
    background: url('https://trae-api-cn.mchost.guru/api/ide/v1/text_to_image?prompt=drone%20delivery%20package%20city%20logistics&image_size=landscape_16_9') center/cover;
}

.app-large-card.aerial {
    background: url('https://trae-api-cn.mchost.guru/api/ide/v1/text_to_image?prompt=aerial%20photography%20drone%20landscape%20cinematic&image_size=landscape_16_9') center/cover;
}

.app-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
}

.app-content {
    position: relative;
    z-index: 1;
    height: 100%;
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: #fff;
}

.app-content h3 {
    font-size: 32px;
    margin-bottom: 10px;
}

.app-content p {
    font-size: 16px;
    margin-bottom: 20px;
    opacity: 0.9;
}

.app-content ul {
    list-style: none;
    margin-bottom: 20px;
}

.app-content li {
    padding: 8px 0;
    font-size: 14px;
    opacity: 0.8;
}

.app-btn {
    align-self: flex-start;
    background: var(--grad);
    border: none;
    padding: 12px 30px;
    font-size: 14px;
    font-weight: bold;
    color: #fff;
    cursor: pointer;
    border-radius: 10px;
    transition: all 0.3s;
}

.app-btn:hover {
    background: linear-gradient(135deg, #103f8f 0%, #1e6fe0 100%);
    transform: translateY(-2px);
}

.education-content {
    padding: 60px 0;
}

.education-intro {
    padding: 60px 0;
    text-align: center;
    background: #fff;
}

.intro-title {
    font-size: 36px;
    font-weight: bold;
    color: var(--ink);
    margin-bottom: 20px;
}

.intro-description {
    color: var(--body);
    line-height: 1.8;
    font-size: 16px;
    max-width: 1000px;
    margin: 0 auto 40px;
}

.stats-row {
    display: flex;
    justify-content: center;
    gap: 120px;
    margin-bottom: 60px;
}

.stats-row .stat-item {
    text-align: center;
}

.stats-row .stat-number {
    font-size: 48px;
    font-weight: bold;
    color: var(--primary);
    margin-bottom: 10px;
}

.stats-row .stat-label {
    font-size: 14px;
    color: var(--muted);
}

.intro-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.intro-card {
    background: #fff;
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.intro-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: rgba(21, 86, 191, 0.15);
}

.card-image {
    width: 100%;
    height: 280px;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.image-placeholder {
    font-size: 64px;
    opacity: 0.5;
}

.intro-card h3 {
    font-size: 20px;
    color: var(--ink);
    margin: 20px 20px 10px;
    text-align: left;
}

.intro-card p {
    color: var(--body);
    font-size: 14px;
    line-height: 1.7;
    padding: 0 20px;
    text-align: left;
    margin-bottom: 20px;
}

.card-btn {
    background: var(--grad);
    color: #fff;
    border: none;
    padding: 12px 30px;
    border-radius: 10px;
    font-weight: bold;
    cursor: pointer;
    margin: 0 20px 20px;
    transition: all 0.3s ease;
    float: left;
}

.card-btn:hover {
    background: linear-gradient(135deg, #103f8f 0%, #1e6fe0 100%);
    transform: translateY(-2px);
}

.courses-section {
    margin-bottom: 40px;
}

.courses-section h3 {
    margin-bottom: 20px;
    font-size: 24px;
    color: var(--ink);
}

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

.course-card {
    background: #fff;
    padding: 30px;
    border-radius: 18px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: rgba(21, 86, 191, 0.15);
}

.course-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 15px;
    background: var(--grad);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: bold;
    color: #fff;
    box-shadow: 0 8px 18px rgba(21, 86, 191, 0.22);
}

.course-card h4 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--ink);
}

.course-card p {
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 15px;
}

.course-card ul {
    list-style: none;
}

.course-card li {
    padding: 5px 0;
    font-size: 14px;
    color: var(--muted);
}

/* 课程卡片内容与按钮 */
.course-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 100%;
}

.course-btn {
    margin-top: 18px;
    padding: 12px 34px;
    border: none;
    border-radius: 10px;
    background: var(--grad);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 8px 20px rgba(21, 86, 191, 0.25);
}

.course-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(21, 86, 191, 0.4);
}

.education-stats {
    margin-bottom: 40px;
}

.education-stats h3 {
    margin-bottom: 20px;
    font-size: 24px;
    color: var(--ink);
}

.stats-row {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 24px;
    background: #fff;
    padding: 40px 30px;
    border-radius: 18px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
}

.stat-box {
    text-align: center;
    color: var(--ink);
    padding: 0 30px;
}

.stat-value {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 5px;
}

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

.education-contact {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 40px;
    border-radius: 18px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
}

.education-contact h3 {
    margin-bottom: 15px;
    color: var(--ink);
}

.education-contact p {
    color: var(--body);
    margin-bottom: 20px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.contact-info span {
    font-size: 14px;
    color: var(--body);
}

/* 人设天可证板块样式 */
.certificate-section {
    margin: 60px 0;
    padding: 60px;
    background: linear-gradient(160deg, var(--accent-soft) 0%, #fff 100%);
    border-radius: 24px;
    border: 1px solid var(--line);
}

.certificate-section .section-title {
    text-align: center;
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 20px;
    color: var(--ink);
}

.certificate-desc {
    text-align: center;
    margin-bottom: 50px;
}

.certificate-desc p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto;
}

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

.certificate-card {
    background: #fff;
    border-radius: 18px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

.certificate-card p {
    margin-top: auto;
    padding-top: 12px;
}

.certificate-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: rgba(21, 86, 191, 0.2);
}

.cert-icon {
    font-size: 56px;
    margin-bottom: 20px;
}

.certificate-card h3 {
    font-size: 20px;
    font-weight: bold;
    color: var(--ink);
    margin-bottom: 15px;
}

.certificate-card p {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.cert-info {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-bottom: 25px;
}

.cert-info span {
    background: var(--accent-soft);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
    color: var(--primary);
    font-weight: 600;
}

.cert-btn {
    background: var(--grad);
    color: #fff;
    border: none;
    padding: 12px 30px;
    border-radius: 10px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.cert-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 24px rgba(21, 86, 191, 0.35);
}

.about-content {
    padding: 60px 0;
}

.company-intro {
    margin-bottom: 40px;
}

.company-intro p {
    color: var(--body);
    line-height: 1.8;
    margin-bottom: 15px;
}

.stats-section {
    margin-bottom: 40px;
}

.tech-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.tech-item {
    padding: 30px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 18px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.tech-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.tech-value {
    display: block;
    font-size: 48px;
    font-weight: bold;
    color: var(--primary);
    margin-bottom: 10px;
}

.tech-label {
    font-size: 14px;
    color: var(--muted);
}

.honors-section {
    margin-bottom: 40px;
}

.honors-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.honor-item {
    padding: 25px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 14px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    text-align: center;
    font-size: 14px;
    color: var(--body);
}

.mission-section {
    margin-bottom: 40px;
}

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

.mission-box {
    padding: 30px;
    background: linear-gradient(160deg, #103f8f 0%, #2f80ed 100%);
    border-radius: 18px;
    color: #fff;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.mission-box:hover {
    transform: translateY(-5px);
}

.mission-box h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #fff;
}

.mission-box p {
    font-size: 14px;
    opacity: 0.9;
    line-height: 1.8;
}

.events-section {
    margin-bottom: 40px;
}

.events-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.event-item {
    padding: 25px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 14px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

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

.event-item h4 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--ink);
}

.event-item p {
    color: var(--muted);
    font-size: 14px;
}

.careers-content {
    padding: 60px 0;
}

.careers-intro {
    text-align: center;
    margin-bottom: 40px;
}

.careers-intro p {
    color: var(--body);
    line-height: 1.8;
}

.jobs-section {
    margin-bottom: 40px;
}

.jobs-section h3 {
    margin-bottom: 20px;
    font-size: 24px;
    color: var(--ink);
}

.jobs-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.job-item {
    padding: 30px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 18px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.job-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.job-item h4 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--ink);
}

.job-item p {
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 15px;
}

.job-item ul {
    list-style: none;
    margin-bottom: 20px;
}

.job-item li {
    padding: 5px 0;
    font-size: 14px;
    color: var(--muted);
}

.apply-btn {
    background: var(--grad);
    border: none;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: bold;
    color: #fff;
    cursor: pointer;
    border-radius: 10px;
    transition: all 0.3s;
}

.apply-btn:hover {
    background: linear-gradient(135deg, #103f8f 0%, #1e6fe0 100%);
    transform: translateY(-2px);
}

.benefits-section {
    margin-bottom: 40px;
}

.benefits-section h3 {
    margin-bottom: 20px;
    font-size: 24px;
    color: var(--ink);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.benefit-item {
    padding: 25px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 14px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    text-align: center;
    font-size: 14px;
    color: var(--body);
}

.apply-info {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 40px;
    border-radius: 18px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
}

.apply-info h3 {
    margin-bottom: 15px;
    color: var(--ink);
}

.apply-info p {
    color: var(--body);
    margin-bottom: 10px;
}

.contact-content {
    padding: 60px 0;
}

.contact-info-section {
    margin-bottom: 40px;
}

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

.contact-item {
    text-align: center;
    padding: 30px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 18px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: rgba(21, 86, 191, 0.15);
}

.contact-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto 15px;
    background: var(--grad);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
    color: #fff;
    box-shadow: 0 8px 18px rgba(21, 86, 191, 0.22);
}

.contact-item h4 {
    font-size: 16px;
    margin-bottom: 10px;
    color: var(--ink);
}

.contact-item p {
    color: var(--muted);
    font-size: 14px;
}

.contact-form-section {
    margin-bottom: 40px;
}

.contact-form-section h3 {
    margin-bottom: 20px;
    font-size: 24px;
    color: var(--ink);
}

.contact-form {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 40px;
    border-radius: 18px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.contact-form select {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--line-2);
    border-radius: 11px;
    font-size: 14px;
    background: var(--bg-soft);
    outline: none;
}

.contact-form select:focus {
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(47, 128, 237, 0.12);
}

.map-section {
    margin-bottom: 40px;
}

.map-section h3 {
    margin-bottom: 20px;
    font-size: 24px;
    color: var(--ink);
}

.map-placeholder img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 16px;
}

.applications-grid-new {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 60px;
    grid-auto-flow: row;
}

.app-item {
    position: relative;
    border-radius: 18px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
    height: 250px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
}

.app-item.app-full {
    grid-column: span 3;
    height: 300px;
    background: rgba(255, 255, 255, 0.9);
}

.app-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: rgba(21, 86, 191, 0.2);
}

.app-image-wrapper {
    width: 100%;
    height: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-image {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.app-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.app-item:hover .app-overlay {
    background: rgba(0, 0, 0, 0.7);
}

.app-overlay h3 {
    color: #fff;
    font-size: 28px;
    font-weight: bold;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    margin-bottom: 10px;
}

.app-overlay p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    text-align: center;
    padding: 0 20px;
}

@keyframes shine {
    0% {
        background-position: 200% center;
    }
    50% {
        background-position: -20% center;
    }
    100% {
        background-position: 200% center;
    }
}

/* ============================================
   子页面网格响应式适配（全局兜底）
   ============================================ */
@media (max-width: 992px) {
    .products-grid,
    .features-grid,
    .scenes-grid,
    .partner-grid,
    .courses-grid,
    .certificates-grid,
    .locations-grid,
    .honors-grid,
    .team-grid,
    .mission-content,
    .tech-stats,
    .contact-info-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .apps-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 640px) {
    .products-grid,
    .features-grid,
    .scenes-grid,
    .partner-grid,
    .courses-grid,
    .certificates-grid,
    .locations-grid,
    .honors-grid,
    .team-grid,
    .mission-content,
    .tech-stats,
    .contact-info-grid,
    .sprayer-grid,
    .advantages-grid,
    .benefits-grid,
    .intro-cards,
    .jobs-list,
    .form-row {
        grid-template-columns: 1fr;
    }

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

/* ============================================
   企业级导航交互
   ============================================ */

/* 导航项渐变下划线（桌面端） */
.navbar .nav-links .nav-item::after,
.navbar .nav-links .nav-link::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 3px;
    width: 0;
    height: 2.5px;
    border-radius: 2px;
    background: var(--grad);
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

.navbar .nav-links .nav-item:not(.nav-btn):hover::after,
.navbar .nav-links .nav-link:hover::after {
    width: 100%;
}

.navbar .nav-links .nav-item.active:not(.nav-btn)::after,
.navbar .nav-links .dropdown.active .nav-link::after {
    width: 100%;
}

/* 联系我们按钮扫光 + 上浮 */
.contact-btn {
    position: relative;
    overflow: hidden;
}

.contact-btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
    transition: left 0.5s ease;
}

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

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    border: 0;
    background: transparent;
    padding: 8px;
    border-radius: 8px;
    color: var(--ink);
    cursor: pointer;
    transition: all 0.2s ease;
    flex: 0 0 auto;
}

.menu-toggle:hover {
    background: var(--bg-soft);
}

.menu-toggle svg {
    width: 26px;
    height: 26px;
    display: block;
}

/* 移动端抽屉面板 */
.mobile-nav {
    position: fixed;
    inset: 0 0 0 auto;
    z-index: 300;
    width: min(330px, 84vw);
    padding: 26px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    transform: translateX(100%);
    transition: transform 0.35s ease;
    background: #fff;
    box-shadow: -24px 0 60px rgba(16, 26, 44, 0.16);
    overflow-y: auto;
}

.mobile-nav.open {
    transform: translateX(0);
}

.mobile-nav-close {
    align-self: flex-end;
    margin-bottom: 12px;
    color: var(--ink);
    border: 0;
    background: var(--bg-soft);
    padding: 8px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.mobile-nav-close:hover {
    background: var(--line);
}

.mobile-nav a {
    padding: 14px 8px;
    border-bottom: 1px solid var(--line);
    color: var(--ink);
    font-weight: 600;
    text-decoration: none;
    font-size: 15px;
    transition: all 0.2s ease;
    border-radius: 8px;
}

.mobile-nav a:hover {
    background: var(--bg-soft);
    padding-left: 12px;
    color: var(--primary);
}

.mobile-nav .mobile-cta {
    margin-top: 16px;
    padding: 14px;
    border-bottom: 0;
    border-radius: 12px;
    color: #fff;
    text-align: center;
    background: var(--grad);
    box-shadow: 0 6px 16px rgba(21, 86, 191, 0.25);
    font-weight: 700;
}

.mobile-nav .mobile-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(21, 86, 191, 0.35);
    background: var(--grad);
    padding-left: 8px;
}

/* 移动端导航遮罩 */
.nav-overlay {
    position: fixed;
    inset: 0;
    z-index: 290;
    background: rgba(16, 26, 44, 0.4);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.nav-overlay.show {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   滚动入场动画（参考官网 reveal 模式）
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* 章节眉标签（eyebrow）参考官网风格 */
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    border: 1px solid var(--line-2);
    border-radius: 999px;
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.06em;
    background: #fff;
    margin-bottom: 14px;
}

/* 移动端导航适配 */
@media (max-width: 1080px) {
    .menu-toggle {
        display: block;
    }

    .nav-links {
        display: none;
    }

    .gooey-nav {
        display: none;
    }

    .nav-right {
        gap: 8px;
    }

    .nav-container {
        padding: 10px 20px;
    }
}

/* ============================================
   企业级页脚升级
   ============================================ */

/* 页脚顶部渐变发光分隔线 */
.footer {
    position: relative;
    padding-top: 64px;
}

.footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent 0%, #2f80ed 25%, #8ab6f0 50%, #2f80ed 75%, transparent 100%);
    opacity: 0.9;
}

/* 品牌标记（logo + 副标题垂直排布 + 渐变文字） */
.footer-logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    margin-bottom: 24px;
}

.footer-logo .logo-text {
    font-size: 26px;
    font-weight: 800;
    letter-spacing: 0.06em;
    background: linear-gradient(135deg, #8ab6f0 0%, #ffffff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-logo .logo-subtitle {
    font-size: 11px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
}

/* 联系方式：lucide 风格图标点缀 */
.footer-contact,
.footer-address {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.72);
    margin-bottom: 10px;
    transition: color 0.3s ease;
}

.footer-contact:hover,
.footer-address:hover {
    color: #8ab6f0;
}

.footer-contact::before,
.footer-address::before {
    content: "";
    width: 15px;
    height: 15px;
    flex: 0 0 auto;
    background-color: rgba(138, 182, 240, 0.85);
    -webkit-mask: var(--icon) center/contain no-repeat;
    mask: var(--icon) center/contain no-repeat;
}

.footer-contact {
    --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M19 21v-2a4 4 0 0 0-4-4H9a4 4 0 0 0-4 4v2'/%3E%3Ccircle cx='12' cy='7' r='4'/%3E%3C/svg%3E");
}

.footer-address {
    --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 10c0 6-8 12-8 12s-8-6-8-12a8 8 0 0 1 16 0Z'/%3E%3Ccircle cx='12' cy='10' r='3'/%3E%3C/svg%3E");
}

/* 页脚栏目标题：下划线装饰 */
.footer-column h4 {
    position: relative;
    padding-bottom: 12px;
    margin-bottom: 22px;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: #fff;
}

.footer-column h4::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 26px;
    height: 2px;
    border-radius: 2px;
    background: var(--grad);
}

/* 页脚链接：hover 平移 + 高亮 */
.footer-column a,
.footer-column .footer-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.25s ease;
}

.footer-column a:hover,
.footer-column .footer-link:hover {
    color: #8ab6f0;
    transform: translateX(4px);
}

.footer-column a:hover::after,
.footer-column .footer-link:hover::after {
    content: "";
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #8ab6f0;
}

/* 底部备案区增强 */
.footer-bottom {
    padding-top: 26px;
    margin-top: 4px;
}

/* ============================================
   返回顶部按钮
   ============================================ */
.to-top {
    position: fixed;
    right: 24px;
    bottom: 28px;
    z-index: 200;
    width: 46px;
    height: 46px;
    border: 1px solid rgba(21, 86, 191, 0.15);
    border-radius: 14px;
    background: #fff;
    color: var(--primary);
    cursor: pointer;
    display: grid;
    place-items: center;
    box-shadow: 0 10px 24px rgba(16, 26, 44, 0.12);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: all 0.3s ease;
}

.to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.to-top:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 14px 30px rgba(21, 86, 191, 0.35);
}

.to-top svg {
    width: 20px;
    height: 20px;
}

@media (max-width: 768px) {
    .to-top {
        right: 16px;
        bottom: 20px;
        width: 42px;
        height: 42px;
    }
}

/* ============================================
   参考官网 SectionTitle 风格
   （眉标胶囊 + 深色标题 + 描述，左对齐限宽）
   ============================================ */
.sec-head {
    max-width: 720px;
    margin: 0 0 48px;
    text-align: left;
}

.sec-head .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    border: 1px solid var(--line-2);
    border-radius: 999px;
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.06em;
    background: #fff;
    margin-bottom: 16px;
}

.sec-head h2 {
    font-size: clamp(28px, 3.4vw, 44px);
    font-weight: 700;
    line-height: 1.16;
    letter-spacing: -0.01em;
    color: var(--ink);
    font-family: 'Microsoft YaHei', 'Microsoft YaHei UI', sans-serif;
}

.sec-head p {
    margin-top: 14px;
    color: var(--body);
    font-size: 16px;
    line-height: 1.8;
}

/* 区块通用留白（页头之下 / 区块之间） */
.sec-block {
    padding: 16px 0 8px;
}

/* ============================================
   参考官网设计系统完善（统一界面 / 布局 / 间距）
   ============================================ */

/* 补充设计令牌 */
:root {
    --radius: 18px;
    --shadow-lg: 0 30px 60px rgba(16, 26, 44, .1);
    --wrap: min(1200px, calc(100% - 40px));
}

/* section-head 与 sec-head 同构：左对齐限宽 + 眉标胶囊 */
.section-head {
    max-width: 720px;
    margin: 0 auto 48px;
    text-align: left;
}

.section-head .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    border: 1px solid var(--line-2);
    border-radius: 999px;
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.06em;
    background: #fff;
    margin-bottom: 16px;
}

.section-head .section-title,
.section-head h2 {
    font-size: clamp(28px, 3.4vw, 44px);
    font-weight: 700;
    line-height: 1.16;
    letter-spacing: -0.01em;
    color: var(--ink);
    margin: 0 0 14px;
    font-family: 'Microsoft YaHei', 'Microsoft YaHei UI', sans-serif;
}

.section-head .section-desc,
.section-head p {
    margin: 0;
    color: var(--body);
    font-size: 16px;
    line-height: 1.8;
}

/* 居中变体（适合产品中心等需要居中的区块） */
.section-head.center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

/* ============================================
   统一图片横幅（hero-banner：浅色紧凑条幅）
   ============================================ */
.hero-banner {
    position: relative;
    display: flex;
    align-items: center;
    gap: 24px;
    background: linear-gradient(135deg, #eaf2fe 0%, #f6f8fc 100%);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 18px 26px;
    margin-bottom: 44px;
    overflow: hidden;
    min-height: 108px;
}

.hero-banner::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(circle at 82% 20%, rgba(47, 128, 237, 0.12), transparent 45%);
    pointer-events: none;
}

.hero-banner img {
    position: relative;
    width: 180px;
    height: 92px;
    object-fit: cover;
    border-radius: 10px;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(16, 26, 44, 0.08);
}

.hero-banner .banner-overlay {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    text-align: left;
    padding: 0;
    flex: 1;
}

.hero-banner .banner-overlay h2 {
    font-size: 22px;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 6px;
    letter-spacing: 0.02em;
}

.hero-banner .banner-overlay p {
    font-size: 14px;
    color: var(--body);
    line-height: 1.6;
    margin: 0;
    max-width: 540px;
}

@media (max-width: 768px) {
    .hero-banner {
        flex-direction: column;
        align-items: stretch;
        padding: 20px;
        gap: 18px;
    }
    .hero-banner img {
        width: 100%;
        height: 170px;
    }
    .hero-banner .banner-overlay {
        text-align: center;
        align-items: center;
    }
}

/* ============================================
   页面头部（page-header）增强：眉标 + 标题 + 描述
   ============================================ */
.page-header .page-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    border: 1px solid rgba(21, 86, 191, 0.28);
    border-radius: 999px;
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.06em;
    background: rgba(255, 255, 255, 0.85);
    margin-bottom: 18px;
    position: relative;
    z-index: 1;
}

/* ============================================
   滚动进度条（参考官网顶部渐变进度条）
   ============================================ */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    width: 100%;
    height: 3px;
    transform: scaleX(0);
    transform-origin: left;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    pointer-events: none;
}

/* ============================================
   浮动咨询按钮组（微信 / 电话）
   ============================================ */
.floating-stack {
    position: fixed;
    right: 24px;
    bottom: 84px;
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.floating-card {
    position: relative;
}

.floating-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    width: 48px;
    padding: 6px 3px;
    border: 0;
    border-radius: 10px;
    color: var(--ink);
    font-weight: 600;
    font-size: 10.5px;
    background: #fff;
    box-shadow: 0 8px 20px rgba(16, 26, 44, 0.08);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    cursor: pointer;
}

.floating-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 26px rgba(16, 26, 44, 0.12);
}

.floating-btn svg {
    width: 14px;
    height: 14px;
}

.floating-btn-wechat svg { color: #07c160; }
.floating-btn-phone svg { color: #1556bf; }

.floating-popup {
    position: absolute;
    right: 62px;
    top: 50%;
    width: 220px;
    padding: 16px;
    border-radius: 16px;
    background: #fff;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: translateY(-50%) translateX(10px) scale(0.96);
    pointer-events: none;
    transition: 0.25s ease;
}

.floating-card.open .floating-popup {
    opacity: 1;
    transform: translateY(-50%) translateX(0) scale(1);
    pointer-events: auto;
}

.floating-popup-close {
    position: absolute;
    top: 8px;
    right: 8px;
    display: grid;
    place-items: center;
    width: 26px;
    height: 26px;
    border: 0;
    border-radius: 8px;
    color: var(--muted);
    background: var(--bg-soft);
    cursor: pointer;
}

.floating-popup-title {
    margin: 4px 0 12px;
    color: var(--ink);
    font-weight: 700;
    font-size: 14px;
    text-align: center;
}

.floating-popup img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 10px;
    border: 1px solid var(--line);
}

.floating-popup-tip {
    margin: 10px 0 0;
    color: var(--muted);
    font-size: 12px;
    text-align: center;
}

.floating-popup-phone-number {
    margin: 6px 0;
    color: var(--primary);
    font-size: 22px;
    font-weight: 800;
    text-align: center;
    letter-spacing: 0.02em;
}

@media (max-width: 768px) {
    .floating-stack {
        right: 16px;
        bottom: 76px;
        gap: 8px;
    }
    .floating-btn {
        width: 54px;
        padding: 7px 4px;
        font-size: 11px;
    }
    .floating-btn svg {
        width: 15px;
        height: 15px;
    }
    .floating-popup {
        right: 68px;
        width: 180px;
    }
}

/* ============================================
   卡片悬停光效（参考官网扫光效果）
   ============================================ */
.scene-card,
.course-card,
.partner-card,
.case-card,
.contract-card,
.craftsman-card,
.benefit-item,
.tech-item,
.honor-item {
    position: relative;
    overflow: hidden;
}

.scene-card::after,
.course-card::after,
.partner-card::after,
.case-card::after,
.contract-card::after,
.craftsman-card::after,
.benefit-item::after,
.tech-item::after,
.honor-item::after {
    content: "";
    position: absolute;
    top: 0;
    left: -60%;
    width: 40%;
    height: 100%;
    pointer-events: none;
    background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.55), transparent);
    transform: skewX(-18deg);
    opacity: 0;
    transition: opacity 0.2s;
}

.scene-card:hover::after,
.course-card:hover::after,
.partner-card:hover::after,
.case-card:hover::after,
.contract-card:hover::after,
.craftsman-card:hover::after,
.benefit-item:hover::after,
.tech-item:hover::after,
.honor-item:hover::after {
    opacity: 1;
    animation: card-shine 0.9s ease;
}

@keyframes card-shine {
    0% { left: -60%; }
    100% { left: 130%; }
}

/* ============================================
   全局布局 / 间距统一
   ============================================ */
.container {
    padding: clamp(44px, 5.5vw, 72px) 20px;
}

/* 区块统一垂直节奏 */
.low-altitude-content,
.partners-content,
.products-content,
.applications-content,
.education-content,
.about-content,
.contact-content,
.careers-content {
    padding: 0;
}

/* 各页内容区背景统一 */
.products-content,
.applications-content,
.partners-content,
.low-altitude-content,
.education-content,
.about-content,
.contact-content {
    background: var(--bg);
}

/* 修复移动端抽屉导航造成的横向溢出 */
html,
body {
    overflow-x: hidden;
}

.mobile-nav {
    visibility: hidden;
    transition: transform 0.35s ease, visibility 0.35s ease;
}

.mobile-nav.open {
    visibility: visible;
}

/* 卡片网格响应式：避免末行孤卡 */
@media (max-width: 992px) {
    .products-grid,
    .scenes-grid,
    .partner-grid,
    .courses-grid,
    .honors-grid,
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .products-grid,
    .scenes-grid,
    .partner-grid,
    .courses-grid,
    .honors-grid,
    .team-grid {
        grid-template-columns: 1fr;
    }
}