/* ============================================
   无人机反制系统官网 - 主样式文件
   配色方案：科技蓝 + 深空黑
   ============================================ */

/* === CSS 变量 === */
:root {
    --primary-color: #0066CC;
    --primary-light: #00BFFF;
    --primary-dark: #004C99;
    --bg-dark: #0A0E17;
    --bg-darker: #070A10;
    --bg-card: #111827;
    --bg-section: #0D111E;
    --text-white: #FFFFFF;
    --text-light: #B0B8C8;
    --text-dark: #1A1F2E;
    --text-muted: #6B7280;
    --border-color: #1E293B;
    --border-light: rgba(0, 102, 204, 0.3);
    --gradient-primary: linear-gradient(135deg, #0066CC 0%, #00BFFF 100%);
    --gradient-dark: linear-gradient(135deg, #0A0E17 0%, #1A1F2E 100%);
    --shadow-lg: 0 10px 40px rgba(0, 102, 204, 0.2);
    --shadow-card: 0 5px 20px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 15px 40px rgba(0, 102, 204, 0.25);
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
}

/* === 全局样式 === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

img {
    max-width: 100%;
    height: auto;
}

.section-padding {
    padding: 100px 0;
}

/* === 顶部信息栏 === */
.top-bar {
    background: var(--bg-darker);
    padding: 8px 0;
    font-size: 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.top-bar span {
    color: var(--text-muted);
}

.top-bar .fa-phone-alt {
    color: var(--primary-light);
    margin-right: 6px;
}

/* === 导航栏 === */
.navbar {
    background: transparent;
    padding: 15px 0;
    transition: var(--transition);
    z-index: 1000;
}

.navbar.scrolled {
    background: rgba(10, 14, 23, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 8px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.navbar-brand .logo-img {
    height: 40px;
    width: auto;
    transition: var(--transition);
}

.navbar.scrolled .navbar-brand .logo-img {
    height: 35px;
}

.brand-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-white);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-nav .nav-link {
    color: var(--text-light) !important;
    font-size: 15px;
    padding: 8px 16px !important;
    transition: var(--transition);
    position: relative;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
    border-radius: 2px;
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    width: 60%;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--text-white) !important;
}

.nav-contact .btn-primary {
    background: var(--gradient-primary);
    border: none;
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.nav-contact .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* === Hero 轮播 === */
.hero-section {
    position: relative;
    height: 100vh;
    min-height: 600px;
    margin-top: -76px;
}

.hero-swiper {
    width: 100%;
    height: 100%;
}

.hero-slide {
    position: relative;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-video-bg {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    object-fit: cover;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg,
            rgba(10, 14, 23, 0.85) 0%,
            rgba(10, 14, 23, 0.6) 50%,
            rgba(10, 14, 23, 0.3) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    padding: 0 20px;
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: 16px;
    line-height: 1.2;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 20px;
    color: var(--primary-light);
    margin-bottom: 12px;
    font-weight: 500;
}

.hero-desc {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-buttons .btn {
    padding: 14px 36px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 30px;
    margin-right: 12px;
    margin-bottom: 8px;
}

.hero-buttons .btn-primary {
    background: var(--gradient-primary);
    border: none;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.hero-buttons .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 102, 204, 0.4);
}

.hero-buttons .btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition);
}

.hero-buttons .btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--text-white);
    transform: translateY(-3px);
}

/* Swiper 自定义 */
.hero-section .swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.3);
    opacity: 1;
}

.hero-section .swiper-pagination-bullet-active {
    background: var(--primary-color);
    width: 30px;
    border-radius: 6px;
}

.hero-section .swiper-button-next,
.hero-section .swiper-button-prev {
    color: var(--text-white);
    background: rgba(255, 255, 255, 0.1);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    transition: var(--transition);
}

.hero-section .swiper-button-next:hover,
.hero-section .swiper-button-prev:hover {
    background: rgba(0, 102, 204, 0.5);
}

.hero-section .swiper-button-next::after,
.hero-section .swiper-button-prev::after {
    font-size: 20px;
}

/* === 统计/数据展示 === */
.stats-section {
    background: var(--bg-darker);
    padding: 60px 0;
    position: relative;
}

.stat-item {
    text-align: center;
    padding: 30px 20px;
    transition: var(--transition);
}

.stat-item:hover .stat-icon {
    transform: rotate(360deg);
}

.stat-icon {
    width: 70px;
    height: 70px;
    line-height: 70px;
    text-align: center;
    margin: 0 auto 20px;
    background: rgba(0, 102, 204, 0.1);
    border-radius: 50%;
    font-size: 28px;
    color: var(--primary-light);
    transition: transform 0.6s ease;
}

.stat-number {
    display: inline-block;
    font-size: 48px;
    font-weight: 800;
    color: var(--text-white);
    line-height: 1;
}

.stat-unit {
    display: inline-block;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-light);
    margin-left: 4px;
}

.stat-label {
    font-size: 16px;
    color: var(--text-muted);
    margin-top: 12px;
    font-weight: 500;
}

/* === 通用 Section Header === */
.section-header {
    margin-bottom: 60px;
}

.section-subtitle {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-color);
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 8px;
    position: relative;
}

.section-subtitle::before,
.section-subtitle::after {
    content: '';
    display: inline-block;
    width: 30px;
    height: 1px;
    background: var(--primary-color);
    vertical-align: middle;
    margin: 0 10px;
}

.section-title {
    font-size: 36px;
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: 16px;
}

.section-desc {
    font-size: 16px;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* === 产品中心 === */
.products-section {
    background: var(--bg-section);
}

.product-card {
    background: var(--bg-card);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    height: 100%;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.product-image {
    position: relative;
    overflow: hidden;
    height: 240px;
}

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

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

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 102, 204, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-overlay .btn {
    border-radius: 25px;
    padding: 10px 28px;
    font-weight: 500;
}

.product-info {
    padding: 24px;
}

.product-category {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--primary-light);
    background: rgba(0, 191, 255, 0.1);
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 12px;
}

.product-info h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 12px;
}

.product-info p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 16px;
}

.product-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.product-meta .price {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-light);
}

.product-meta .btn-link {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.product-meta .btn-link:hover {
    color: var(--primary-color);
}

/* === 解决方案 === */
.solutions-section {
    background: var(--bg-dark);
}

.solution-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px 30px;
    transition: var(--transition);
    height: 100%;
    position: relative;
    overflow: hidden;
}

.solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background: var(--gradient-primary);
    transition: var(--transition);
}

.solution-card:hover::before {
    height: 100%;
}

.solution-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.solution-icon {
    width: 60px;
    height: 60px;
    line-height: 60px;
    text-align: center;
    background: rgba(0, 102, 204, 0.1);
    border-radius: 12px;
    font-size: 24px;
    color: var(--primary-light);
    margin-bottom: 20px;
    transition: transform 0.5s ease;
}

.solution-card:hover .solution-icon {
    transform: rotateY(180deg);
}

.solution-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 16px;
}

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

.solution-card .btn-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    padding: 0;
}

.solution-card .btn-link:hover {
    color: var(--primary-light);
    transform: translateX(5px);
}

/* === 技术优势 === */
.features-section {
    background: var(--bg-section);
    position: relative;
}

.features-image {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
}

.features-image img {
    width: 100%;
    border-radius: 16px;
}

.features-image::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-primary);
    border-radius: 18px;
    z-index: -1;
    opacity: 0.5;
}

.features-list {
    padding-left: 20px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.feature-item:last-child {
    border-bottom: none;
}

.feature-item:hover {
    transform: translateX(8px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: rgba(0, 102, 204, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--primary-light);
}

.feature-text h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 6px;
}

.feature-text p {
    font-size: 14px;
    color: var(--text-muted);
    margin: 0;
}

/* === 新闻动态 === */
.news-section {
    background: var(--bg-dark);
}

.news-card {
    background: var(--bg-card);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    height: 100%;
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.news-image {
    position: relative;
    height: 220px;
    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-date {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--gradient-primary);
    color: var(--text-white);
    padding: 8px 14px;
    border-radius: 8px;
    text-align: center;
    min-width: 60px;
}

.news-date .day {
    display: block;
    font-size: 22px;
    font-weight: 800;
    line-height: 1;
}

.news-date .month {
    display: block;
    font-size: 12px;
    font-weight: 500;
    margin-top: 2px;
}

.news-category {
    position: absolute;
    top: 16px;
    right: 16px;
    background: rgba(0, 0, 0, 0.6);
    color: var(--text-white);
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.news-info {
    padding: 24px;
}

.news-info h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 12px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-info p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.news-meta span {
    font-size: 13px;
    color: var(--text-muted);
}

.news-meta .fa-eye {
    margin-right: 4px;
}

.news-meta .btn-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
}

.news-meta .btn-link:hover {
    color: var(--primary-light);
}

/* === CTA 区域 === */
.cta-section {
    background: var(--gradient-primary);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.cta-section::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 50%;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 36px;
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 32px;
}

.cta-content .btn {
    padding: 14px 40px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 30px;
    margin: 0 8px 8px;
}

.cta-content .btn-light {
    background: var(--text-white);
    color: var(--primary-color);
    border: none;
}

.cta-content .btn-light:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.cta-content .btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.cta-content .btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
}

/* === 合作伙伴 === */
.partners-section {
    background: var(--bg-darker);
    padding: 60px 0;
}

.partner-swiper .swiper-slide {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 80px;
}

.partner-swiper .swiper-slide img {
    max-height: 50px;
    opacity: 0.5;
    transition: var(--transition);
    filter: grayscale(100%);
}

.partner-swiper .swiper-slide img:hover {
    opacity: 1;
    filter: grayscale(0%);
}

/* === 合作伙伴网格（备用） === */
.partner-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
    padding: 20px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: var(--transition);
    cursor: pointer;
}

.partner-logo:hover {
    border-color: var(--primary-color);
    background: rgba(0, 102, 204, 0.05);
}

.partner-logo img {
    max-height: 50px;
    max-width: 100%;
    opacity: 0.6;
    transition: var(--transition);
    filter: grayscale(100%);
}

.partner-logo:hover img {
    opacity: 1;
    filter: grayscale(0%);
}

/* === 页脚 === */
.footer {
    background: var(--bg-darker);
    padding: 80px 0 0;
    border-top: 1px solid var(--border-color);
}

.footer-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 24px;
    position: relative;
    padding-bottom: 12px;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.footer-text {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.8;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 14px;
    transition: var(--transition);
    text-decoration: none;
}

.footer-links a:hover {
    color: var(--primary-light);
    padding-left: 5px;
}

.footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-contact li {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact li i {
    color: var(--primary-light);
    width: 16px;
}

.footer-bottom {
    margin-top: 40px;
    padding: 20px 0;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    font-size: 14px;
    color: var(--text-muted);
    margin: 0;
}

/* === 回到顶部 === */
/* ============================================
   悬浮咨询按钮
   ============================================ */
.float-consult {
    position: fixed;
    right: 20px;
    bottom: 120px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.float-consult-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    display: flex !important;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #fff !important;
    text-decoration: none !important;
    box-shadow: 0 4px 15px rgba(0,102,204,0.4);
    transition: all 0.3s ease;
    position: relative;
}

.float-consult-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(0,102,204,0.6);
}

.float-consult-btn.phone-btn,
a.float-consult-btn.phone-btn {
    background: linear-gradient(135deg, #0066CC, #00BFFF);
    width: 56px !important;
    height: 56px !important;
    min-width: 56px !important;
    min-height: 56px !important;
    border-radius: 50% !important;
    padding: 0 !important;
    line-height: 56px !important;
}

.float-consult-btn.wechat-btn {
    background: linear-gradient(135deg, #07C160, #06AD56);
    width: 56px !important;
    height: 56px !important;
    min-width: 56px !important;
    min-height: 56px !important;
    border-radius: 50% !important;
    flex-shrink: 0;
}

.wechat-wrapper {
    width: 56px;
    height: 56px;
}

.float-consult-btn .tooltip-text {
    position: absolute;
    right: 70px;
    background: rgba(0,0,0,0.8);
    color: #fff;
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 13px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.float-consult-btn:hover .tooltip-text {
    opacity: 1;
}

.float-consult-popup {
    display: none;
    position: absolute;
    right: 70px;
    bottom: 0;
    width: 260px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    padding: 20px;
    z-index: 10000;
}

.float-consult-popup.show {
    display: block;
    animation: popIn 0.3s ease;
}

@keyframes popIn {
    from { opacity: 0; transform: translateY(10px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.float-consult-popup h4 {
    color: #0066CC;
    margin-bottom: 12px;
    font-size: 16px;
    text-align: center;
}

.float-consult-popup .popup-info {
    margin-bottom: 10px;
    color: #333;
    font-size: 13px;
}

.float-consult-popup .popup-info i {
    width: 20px;
    color: #0066CC;
    margin-right: 8px;
}

.float-consult-popup .close-popup {
    position: absolute;
    top: 8px;
    right: 12px;
    cursor: pointer;
    color: #999;
    font-size: 18px;
}

.wechat-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
}

.wechat-wrapper .float-consult-popup {
    bottom: 0;
    right: 70px;
}

/* 防止页面横向滚动 */
html, body {
    overflow-x: hidden;
    width: 100%;
}

/* 移动端适配 */
@media (max-width: 576px) {
    .float-consult {
        right: 6px !important;
        left: auto !important;
        bottom: 20px;
    }
    .float-consult-btn {
        width: 44px !important;
        height: 44px !important;
        min-width: 44px !important;
        min-height: 44px !important;
        font-size: 18px !important;
        line-height: 44px !important;
    }
    .wechat-wrapper {
        width: 44px;
        height: 44px;
    }
    .float-consult-popup {
        right: 55px;
        width: 200px;
        padding: 12px;
    }
    .wechat-wrapper .float-consult-popup {
        right: 55px;
        width: 200px;
    }
    .float-consult-popup img {
        width: 140px !important;
        height: 140px !important;
    }
}

/* ============================================
   产品图片 Lightbox
   ============================================ */
.lightbox-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.92);
    z-index: 99999;
    justify-content: center;
    align-items: center;
    cursor: zoom-out;
}

.lightbox-overlay.show {
    display: flex;
}

.lightbox-overlay img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    animation: zoomIn 0.3s ease;
}

@keyframes zoomIn {
    from { transform: scale(0.8); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: #fff;
    font-size: 36px;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.lightbox-close:hover { opacity: 1; }

/* ============================================
   粒子背景 Canvas
   ============================================ */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.2;
}

.hero-overlay {
    z-index: 1;
}

.hero-content {
    z-index: 2 !important;
}

/* ============================================
   加载进度条
   ============================================ */
#page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    z-index: 99999;
    pointer-events: none;
}

#page-loader .loader-bar {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, #0066CC, #00BFFF);
    transition: width 0.3s ease;
}

/* ============================================
   3D 卡片悬停
   ============================================ */
/* ============================================
   板块卡片（6大模块）
   ============================================ */
.module-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 40px 25px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    height: 100%;
}

.module-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 35px rgba(0,0,0,0.3);
}

.module-icon {
    width: 72px;
    height: 72px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 30px;
    transition: all 0.3s ease;
}

.module-card:hover .module-icon {
    border-radius: 16px;
    transform: scale(1.1) rotate(5deg);
}





.module-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-white);
}

.module-desc {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: 20px;
    line-height: 1.6;
}

.module-link {
    font-weight: 600;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s;
}

.module-link:hover {
    padding-left: 5px;
    opacity: 0.8;
    text-decoration: none;
}

.product-card, .solution-card, .news-card {
    transform-style: preserve-3d;
    perspective: 1000px;
}

.product-card:hover, .solution-card:hover, .news-card:hover {
    transform: translateY(-8px) rotateX(2deg) rotateY(2deg);
}

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 45px;
    height: 45px;
    background: var(--gradient-primary);
    color: var(--text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    color: var(--text-white);
    box-shadow: 0 10px 30px rgba(0, 102, 204, 0.4);
}

/* === 子页面 Banner === */
.page-banner {
    position: relative;
    padding: 140px 0 80px;
    background-size: cover;
    background-position: center;
    text-align: center;
}

.page-banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg,
            rgba(10, 14, 23, 0.9) 0%,
            rgba(10, 14, 23, 0.7) 100%);
}

.page-banner .container {
    position: relative;
    z-index: 1;
}

.page-banner h1 {
    font-size: 42px;
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: 16px;
}

.page-banner .breadcrumb {
    background: transparent;
    justify-content: center;
    margin: 0;
}

.page-banner .breadcrumb-item {
    color: var(--text-light);
    font-size: 15px;
}

.page-banner .breadcrumb-item a {
    color: var(--primary-light);
    text-decoration: none;
}

.page-banner .breadcrumb-item.active {
    color: var(--text-muted);
}

.page-banner .breadcrumb-item + .breadcrumb-item::before {
    color: var(--text-muted);
}

/* === 关于我们页面 === */
.about-section {
    background: var(--bg-section);
}

.about-content h2 {
    font-size: 32px;
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: 20px;
}

.about-content p {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 16px;
}

/* 时间线 */
.timeline {
    position: relative;
    padding: 20px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    padding-bottom: 40px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: 12px;
    top: 4px;
    width: 18px;
    height: 18px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 4px solid var(--bg-dark);
    z-index: 1;
}

.timeline-year {
    display: inline-block;
    font-size: 14px;
    font-weight: 700;
    color: var(--primary-light);
    background: rgba(0, 191, 255, 0.1);
    padding: 4px 16px;
    border-radius: 20px;
    margin-bottom: 8px;
}

.timeline-content h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 8px;
}

.timeline-content p {
    font-size: 14px;
    color: var(--text-muted);
}

/* === 产品详情页面 === */
.product-detail-section {
    background: var(--bg-section);
}

.product-detail-image {
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    height: 400px;
}

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

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

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

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

.product-detail-info h1 {
    font-size: 32px;
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: 16px;
}

.product-detail-info .price {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-light);
    margin-bottom: 20px;
}

.product-detail-info .description {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 24px;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
}

.specs-table tr {
    border-bottom: 1px solid var(--border-color);
}

.specs-table td {
    padding: 12px 16px;
    font-size: 14px;
}

.specs-table td:first-child {
    color: var(--text-muted);
    font-weight: 500;
    width: 40%;
}

.specs-table td:last-child {
    color: var(--text-white);
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    padding: 10px 0;
    color: var(--text-light);
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.feature-list li::before {
    content: '✓';
    color: var(--primary-light);
    font-weight: 700;
    font-size: 16px;
}

/* === 联系我们页面 === */
.contact-section {
    background: var(--bg-section);
}

.contact-info-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 20px;
    transition: var(--transition);
}

.contact-info-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.contact-info-card .icon {
    width: 50px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    background: rgba(0, 102, 204, 0.1);
    border-radius: 12px;
    font-size: 20px;
    color: var(--primary-light);
    margin-bottom: 16px;
}

.contact-info-card h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 8px;
}

.contact-info-card p {
    font-size: 14px;
    color: var(--text-muted);
    margin: 0;
}

/* 联系表单 */
.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px;
}

.contact-form h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 24px;
}

.contact-form .form-control {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 16px;
    color: var(--text-white);
    font-size: 14px;
    transition: var(--transition);
}

.contact-form .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
    background: var(--bg-dark);
    color: var(--text-white);
}

.contact-form .form-control::placeholder {
    color: var(--text-muted);
}

.contact-form textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

.contact-form .form-label {
    color: var(--text-light);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
}

.contact-form .btn-primary {
    background: var(--gradient-primary);
    border: none;
    padding: 14px 40px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 30px;
    transition: var(--transition);
}

.contact-form .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.contact-form .is-invalid {
    border-color: #dc3545 !important;
}

.contact-form .invalid-feedback {
    color: #dc3545;
    font-size: 13px;
}

/* === 分页 === */
.pagination {
    justify-content: center;
    margin-top: 40px;
}

.pagination .page-link {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-light);
    padding: 10px 18px;
    margin: 0 4px;
    border-radius: 8px !important;
    transition: var(--transition);
}

.pagination .page-link:hover {
    background: rgba(0, 102, 204, 0.1);
    border-color: var(--primary-color);
    color: var(--primary-light);
}

.pagination .page-item.active .page-link {
    background: var(--gradient-primary);
    border-color: var(--primary-color);
    color: var(--text-white);
}

/* === 新闻详情 === */
.news-detail-section {
    background: var(--bg-section);
}

.news-detail-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px;
}

.news-detail-content h1 {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: 16px;
}

.news-detail-meta {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.news-detail-meta span {
    font-size: 14px;
    color: var(--text-muted);
}

.news-detail-meta i {
    margin-right: 6px;
    color: var(--primary-light);
}

.news-detail-body {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.9;
}

.news-detail-body h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-white);
    margin: 32px 0 16px;
}

.news-detail-body h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-white);
    margin: 24px 0 12px;
}

.news-detail-body p {
    margin-bottom: 16px;
}

.news-detail-body ul,
.news-detail-body ol {
    padding-left: 24px;
    margin-bottom: 16px;
}

.news-detail-body li {
    margin-bottom: 8px;
}

.news-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.news-nav a {
    font-size: 15px;
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
    max-width: 45%;
}

.news-nav a:hover {
    color: var(--primary-light);
}

/* === 错误页面 === */
.error-section {
    padding: 150px 0;
    text-align: center;
}

.error-code {
    font-size: 120px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 20px;
}

.error-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 16px;
}

.error-text {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 32px;
}

.error-section .btn-primary {
    background: var(--gradient-primary);
    border: none;
    padding: 14px 40px;
    border-radius: 30px;
    font-weight: 600;
}

/* === 响应式 === */

/* 平板 */
@media (max-width: 991px) {
    .hero-title {
        font-size: 40px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .section-title {
        font-size: 30px;
    }

    .stat-number {
        font-size: 36px;
    }

    .page-banner h1 {
        font-size: 34px;
    }

    .features-image {
        margin-bottom: 40px;
    }
}

/* 手机 */
@media (max-width: 767px) {
    .hero-title {
        font-size: 32px;
    }

    .hero-desc {
        font-size: 14px;
    }

    .hero-buttons .btn {
        padding: 12px 28px;
        font-size: 14px;
    }

    .section-padding {
        padding: 60px 0;
    }

    .section-title {
        font-size: 26px;
    }

    .stats-section .row {
        gap: 10px;
    }

    .stat-item {
        padding: 20px 15px;
    }

    .stat-number {
        font-size: 30px;
    }

    .page-banner {
        padding: 120px 0 60px;
    }

    .page-banner h1 {
        font-size: 28px;
    }

    .footer {
        padding: 60px 0 0;
    }

    .news-detail-content {
        padding: 24px;
    }

    .contact-form {
        padding: 24px;
    }

    .cta-content h2 {
        font-size: 28px;
    }

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

    .error-code {
        font-size: 80px;
    }

    .navbar-brand .logo-img {
        height: 32px;
    }

    .brand-text {
        font-size: 17px;
    }

    .product-image {
        height: 200px;
    }
}

/* 小手机 */
@media (max-width: 480px) {
    .hero-title {
        font-size: 26px;
    }

    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin: 8px 0;
    }

    .section-title {
        font-size: 22px;
    }

    .stat-number {
        font-size: 26px;
    }

    .footer-bottom .text-end {
        text-align: left !important;
        margin-top: 8px;
    }
}

/* === 筛选按钮 === */
.filter-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 40px;
}

.filter-btn {
    padding: 10px 24px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 25px;
    color: var(--text-light);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: var(--text-white);
}

/* === 解决方案分类标签 === */
.solution-categories {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
}

.solution-cat-btn {
    padding: 8px 20px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-light);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.solution-cat-btn:hover,
.solution-cat-btn.active {
    background: rgba(0, 102, 204, 0.1);
    border-color: var(--primary-color);
    color: var(--primary-light);
}

/* === Flash 消息 === */
.alert-success {
    background: rgba(0, 200, 83, 0.1);
    border: 1px solid rgba(0, 200, 83, 0.3);
    color: #00C853;
    border-radius: 8px;
    padding: 16px 20px;
}

/* === 方案详情页面 === */
.solution-detail-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px;
}

.solution-detail-content h1 {
    font-size: 32px;
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: 16px;
}

.solution-detail-body {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.9;
}

.solution-detail-body h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-white);
    margin: 32px 0 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.solution-detail-body h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-white);
    margin: 24px 0 12px;
}

.solution-detail-body p {
    margin-bottom: 16px;
}

.solution-detail-body ul,
.solution-detail-body ol {
    padding-left: 24px;
    margin-bottom: 16px;
}

.solution-detail-body li {
    margin-bottom: 8px;
}

/* === 关于我们 - 荣誉资质 === */
.certificate-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    transition: var(--transition);
    height: 100%;
}

.certificate-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.certificate-card .icon {
    font-size: 36px;
    color: var(--primary-light);
    margin-bottom: 16px;
}

.certificate-card h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 8px;
}

.certificate-card p {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
}

/* 团队卡片 */
.team-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    transition: var(--transition);
    height: 100%;
}

.team-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.team-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 36px;
    color: var(--text-white);
}

.team-card h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 4px;
}

.team-card .position {
    font-size: 14px;
    color: var(--primary-light);
    margin-bottom: 12px;
}

.team-card p {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
}