/* ---------- CSS 变量 ---------- */
:root {
    /* 主色调 - 海洋科技感 */
    --color-deep-blue: #003B5C;
    --color-tech-blue: #0066A1;
    --color-bright-blue: #00A8E8;
    --color-ocean-cyan: #00B4D8;
    
    /* 辅助色 */
    --color-dark-gray: #2D3748;
    --color-medium-gray: #718096;
    --color-light-gray: #EDF2F7;
    --color-light-blue-gray: #E6F0F5;
    
    /* 强调色 */
    --color-signal-red: #f71818;
    --color-signal-orange: #FF6B35;
    --color-eco-green: #38A169;
    
    /* 中性色 */
    --color-white: #FFFFFF;
    --color-black: #1A202C;
    
    /* 字体 */
    --font-family-zh: 'Source Han Sans', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-family-en: 'Montserrat', 'Inter', system-ui, sans-serif;
    --font-family-mono: 'Roboto Mono', 'DIN', monospace;
    
    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 5rem;
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* 阴影 */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    
    /* 过渡 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    
    /* 布局 */
    --header-height: 80px;
    --container-max: 1280px;
}

/* ---------- 重置样式 ---------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-family-zh);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--color-dark-gray);
    background-color: var(--color-white);
    overflow-x: hidden;
}

/* ---------- 排版 ---------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-en);
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-black);
}

h1 { font-size: 3rem; font-weight: 700; }
h2 { font-size: 2rem; font-weight: 600; }
h3 { font-size: 1.5rem; font-weight: 600; }
h4 { font-size: 1.25rem; font-weight: 500; }

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
}

p {
    margin-bottom: 1rem;
    color: var(--color-medium-gray);
}

a {
    color: var(--color-tech-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-bright-blue);
}

/* ---------- 容器 ---------- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
}

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--color-deep-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background-color:#1a224d;
    border-color: #fff;
    color: var(--color-white);
}

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

.btn-outline-light {
    background-color: transparent;
    border-color: var(--color-white);
    color: var(--color-white);
}

.btn-outline-light:hover {
    background-color: var(--color-white);
    color: var(--color-tech-blue);
}

/* ---------- 章节标题 ---------- */
.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-deep-blue);
    text-align: center;
    margin-bottom: 1rem;
}

.section-title-line {
    width: 60px;
    height: 3px;
    background: var(--color-tech-blue);
    margin: 0 auto 1.5rem;
}

.section-subtitle {
    text-align: center;
    color: var(--color-medium-gray);
    margin-bottom: 3rem;
    font-size: 1.125rem;
}


/* 白色文字变体 */
.text-white { color: var(--color-white); }
.text-light { color: rgba(255, 255, 255, 0.8); }
.bg-white { background-color: var(--color-white); }

/* ---------- 工具类 ---------- */
.text-center { text-align: center; }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }
.mb-3 { margin-bottom: var(--spacing-md); }

/* ============================================
   导航栏组件样式
   ============================================ */

.site-header {
    position: fixed !important;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 70px;
    z-index: 99999 !important;
}

@media (max-width: 768px) {
    .site-header {
        height: 60px;
    }
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

/* Logo 样式 */
.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
}

.logo-img{
    height: 60px;
    flex-shrink: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-name {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-deep-blue);
    line-height: 1.3;
}

.logo-sub {
    font-size: 0.625rem;
    font-weight: 500;
    color: var(--color-medium-gray);
    letter-spacing: 1px;
}

/* 桌面端导航 */
.nav-desktop {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-desktop a {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-white);
    transition: all var(--transition-fast);
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
}

.nav-desktop a:hover,
.nav-desktop a.active {
    color: #b8eb21!important;
    border-bottom-color: #b8eb21!important;
}

/* 头部工具栏 */
.header-tools {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.search-btn {
    cursor: pointer;
    color: var(--color-dark-gray);
    transition: color var(--transition-fast);
}

.search-btn:hover {
    color: var(--color-tech-blue);
}

.lang-switch {
    font-size: 0.875rem;
    font-weight: 500;
}

.lang-switch span {
    cursor: pointer;
    color: var(--color-medium-gray);
    transition: color var(--transition-fast);
}

.lang-switch span.active {
    color: var(--color-tech-blue);
    font-weight: 600;
}

.lang-switch .divider {
    margin: 0 0.25rem;
    color: var(--color-light-gray);
}

.btn-contact {
    padding: 0.5rem 1.25rem;
    background: var(--color-tech-blue);
    color: var(--color-white);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.btn-contact:hover {
    background: var(--color-deep-blue);
    color: var(--color-white);
    transform: translateY(-1px);
}

/* 移动端按钮 */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-toggle span {
    width: 22px;
    height: 2px;
    background: var(--color-dark-gray);
    transition: all var(--transition-fast);
}

/* 搜索下拉框 */
.search-dropdown {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
    padding: 1.25rem 1rem;
    z-index: 999;
    border-top: 2px solid var(--color-tech-blue);
    animation: searchSlideDown 0.25s ease;
}

@keyframes searchSlideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.search-container {
    display: flex;
    gap: 0.75rem;
    max-width: 600px;
    margin: 0 auto;
    align-items: center;
}

.search-input-box {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
}

.search-container input {
    width: 100%;
    padding: 0.75rem 2.5rem 0.75rem 1rem;
    border: 2px solid var(--color-light-gray);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.search-container input:focus {
    outline: none;
    border-color: var(--color-tech-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 161, 0.15);
}

.search-close {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: #E2E8F0;
    border: none;
    color: #64748B;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.search-close:hover {
    background: #EF4444;
    color: white;
}

.search-submit {
    padding: 0.75rem 1.5rem;
    background: var(--color-tech-blue);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.95rem;
    font-weight: 500;
    white-space: nowrap;
    transition: background 0.2s;
}

.search-submit:hover {
    background: #004D7A;
}

/* 移动端菜单 */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1001;
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -280px;
    width: 280px;
    height: 100%;
    background: var(--color-white);
    box-shadow: var(--shadow-lg);
    z-index: 1002;
    transition: right var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.mobile-menu.open {
    right: 0;
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem;
    border-bottom: 1px solid var(--color-light-gray);
}

.mobile-menu-header .logo {
    gap: 0.5rem;
}

.mobile-menu-header .close-btn {
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    font-size: 1.75rem;
    cursor: pointer;
    color: var(--color-medium-gray);
}

.mobile-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
}

.mobile-nav a {
    padding: 0.875rem 0;
    font-size: 1rem;
    color: var(--color-dark-gray);
    border-bottom: 1px solid var(--color-light-gray);
}

.mobile-lang {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    border-top: 1px solid var(--color-light-gray);
}

.mobile-lang span {
    font-size: 1rem;
    cursor: pointer;
    color: var(--color-medium-gray);
}

.mobile-lang span.active {
    color: var(--color-tech-blue);
    font-weight: 600;
}

@media (max-width: 1024px) {
    .nav-desktop {
        display: none;
    }
    .mobile-toggle {
        display: flex;
    }
    .btn-contact {
        display: none;
    }
}

/* ============================================
   页面 Banner 公共样式
   ============================================ */

.page-banner {
    background: linear-gradient(135deg, #003B5C 0%, #0066A1 100%);
    padding: 60px 0;
    text-align: center;
    color: white;
}

.page-banner h1 {
    font-size: 40px;
    margin-bottom: 16px;
    color: #ffffff;
}

.page-banner p {
    font-size: 1.5rem;
    opacity: 0.9;
    color: #ffffff;
    font-weight: bold;
}

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

/* ============================================
   底部组件样式
   ============================================ */

.site-footer {
    background: var(--color-deep-blue);
    color: rgba(255, 255, 255, 0.7);
    padding: 3rem 0 1.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

.footer-col h4 {
    color: var(--color-white);
    font-size: 1rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 0.5rem;
}

.footer-col a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

.footer-col a:hover {
    color: var(--color-bright-blue);
}

.contact-info li {
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-icon {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.social-icon:hover {
    background: var(--color-tech-blue);
    transform: translateY(-2px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.75rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a,
.icp a {
    color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 768px) {
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 65px;
    height: 65px;
    border-radius: 4px;
    background: #0066A1;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transform: scale(0.8);
}

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

.back-to-top:hover {
    background: #003B5C;
    transform: translateY(-3px) scale(1);
}

/* 过渡动画 */
.fade-enter-active, .fade-leave-active {
    transition: all 0.3s ease;
}
.fade-enter, .fade-leave-to {
    opacity: 0;
    transform: scale(0.8);
}


/* 返回按钮样式 */
.back-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    color: #0066A1;
    padding: 8px 12px;
    border-radius: 30px;
    transition: all 0.3s;
}

.back-btn:hover {
    background: #E6F0F5;
}

.back-btn svg {
    width: 18px;
    height: 18px;
}


/* 隐藏水印 */
.fp-watermark {
  display: none !important;
}
/* 全屏section基础样式 - 由fullPage.js控制高度 */
html, body {
    margin: 0;
    padding: 0;
}

#fullpage {
    position: relative;
    z-index: 1;
    height: 100%;
}
.fp-section {
    box-sizing: border-box;
    width: 100%;
    height: 100vh !important;
    min-height: 100vh !important;
    margin: 0;
    padding: 0;
}
.fp-slide {
    width: 100%;
    height: 100vh !important;
}
.fp-tableCell {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100% !important;
}
@media (max-width: 768px) {
    html, body {
        overflow: visible;
    }
    .fp-section {
        height: auto !important;
        min-height: calc(100vh - 60px) !important;
    }
}
/* ========== 企业简介区（intro-section） ========== */
.intro-section {
    position: relative;
    overflow: hidden;
    background: #F8FAFC;
    padding: 40px 0;
}

.intro-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 30%, rgba(0, 168, 232, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(0, 180, 216, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(0, 102, 161, 0.1) 0%, transparent 60%);
}

.intro-container {
    position: relative;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 20px 60px;
    max-width: 1400px;
}

.intro-content-wrapper {
    flex: 1;
    text-align: center;
    max-width: 800px;
}

.intro-header {
    margin-bottom: 24px;
}


.intro-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: linear-gradient(135deg, rgba(0, 168, 232, 0.3), rgba(0, 102, 161, 0.3));
    border-radius: 30px;
    border: 1px solid rgba(0, 168, 232, 0.4);
    color: #00D4FF;
    font-size: 14px;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.badge-icon {
    width: 16px;
    height: 16px;
}

.intro-title {
    margin-bottom: 16px;
}

.title-main {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: #FFFFFF;
    letter-spacing: 4px;
}

.title-sub {
    display: block;
    font-size: 1.5rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    letter-spacing: 2px;
    margin-top: 8px;
}

.intro-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 24px;
}

.divider-line {
    width: 60px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 168, 232, 0.8), transparent);
}

.divider-dot {
    width: 8px;
    height: 8px;
    background: #00A8E8;
    border-radius: 50%;
    box-shadow: 0 0 12px rgba(0, 168, 232, 0.6);
}

.intro-description {
    font-size: 1.125rem;
    /* line-height: 1.8; */
    color: rgba(255, 255, 255, 0.9);
    /* max-width: 700px; */
    /* margin: 0 auto 40px; */
}

.intro-description .highlight {
    color: #00D4FF;
    font-weight: 600;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 40px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.stat-card {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    padding: 24px 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.stat-card:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 168, 232, 0.2);
}

.stat-icon-wrapper {
    width: 70px;
    height: 70px;
    margin: 0 auto 16px;
    background: rgba(0, 168, 232, 0.2);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.stat-value {
    font-size: 2.25rem;
    font-weight: 700;
    color: #FFFFFF;
    font-family: 'Roboto Mono', monospace;
}

.stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 4px;
}

.intro-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.intro-actions .btn {
    padding: 12px 32px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 8px;
}

.intro-actions .btn-primary {
    background: linear-gradient(135deg, #0066A1, #00A8E8);
    border: none;
}

.intro-actions .btn-primary:hover {
    background: linear-gradient(135deg, #00558A, #008FC9);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 168, 232, 0.3);
}

.intro-actions .btn-outline-light {
    border-color: rgba(255, 255, 255, 0.3);
    color: #FFFFFF;
}

.intro-actions .btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.intro-actions .btn svg {
    width: 18px;
    height: 18px;
    margin-left: 8px;
}

.intro-visual {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.orb {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 168, 232, 0.3) 0%, transparent 70%);
    animation: float 8s ease-in-out infinite;
}

.ring {
    position: absolute;
    border: 1px solid rgba(0, 168, 232, 0.2);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
}

.ring-1 {
    width: 400px;
    height: 400px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-duration: 25s;
}

.ring-2 {
    width: 550px;
    height: 550px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-duration: 35s;
    animation-direction: reverse;
}

.ring-3 {
    width: 700px;
    height: 700px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-duration: 45s;
}

.wave-line {
    position: absolute;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(0, 168, 232, 0.5), transparent);
    animation: wave 6s ease-in-out infinite;
}

.wave-1 {
    width: 200px;
    top: 30%;
    left: 20%;
    animation-delay: 0s;
}

.wave-2 {
    width: 150px;
    bottom: 35%;
    right: 25%;
    animation-delay: -2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

@keyframes rotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes wave {
    0%, 100% { opacity: 0.3; transform: scaleX(1); }
    50% { opacity: 0.8; transform: scaleX(1.2); }
}

@media (max-width: 992px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .title-main {
        font-size: 2rem;
    }
    
    .title-sub {
        font-size: 1.25rem;
    }
    
    .intro-description {
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .intro-header {
        flex-direction: column;
        gap: 12px;
    }
    
    .title-main {
        font-size: 1.5rem;
        letter-spacing: 2px;
    }
    
    .title-sub {
        font-size: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-value {
        font-size: 1.75rem;
    }
    
    .intro-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .intro-actions .btn {
        width: 100%;
        max-width: 280px;
    }
}

/* ========== 产品展示区（左右布局） ========== */
.product-showcase {
    display: flex;
    gap: 24px;  /* 减小间距 */
    margin: 30px 0 40px;
    align-items: stretch;
    min-height: 500px;
}
/* 左侧菜单 */
.product-menu {
    flex: 1;
    background: #f8fafc;
    border-radius: 24px;
    padding: 20px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.03);
    max-height: 500px;  /* 限制最大高度 */
    overflow-y: auto;   /* 超出时滚动 */
    overflow-x: hidden;
}

.product-menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 12px;  /* 减小内边距 */
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.3s;
    border: 1px solid transparent;
    margin-bottom: 6px;
}

.menu-icon {
    font-size: 32px;  /* 减小图标尺寸 */
    min-width: 45px;
    text-align: center;
}

.product-menu-item:hover {
    background: white;
    border-color: #e2e8f0;
    transform: translateX(5px);
}
.product-menu-item.active {
    background: white;
    border-color: #0066A1;
    box-shadow: 0 8px 20px rgba(0,102,161,0.1);
}

.menu-text h4 {
    font-size: 18px;
    font-weight: 700;
    color: #003B5C;
    margin: 0 0 6px;
}
.menu-text p {
    font-size: 13px;
    color: #718096;
    margin: 0;
}

/* 中间图片区 */
.product-media {
    flex: 1.3;
    background: linear-gradient(145deg, #f1f5f9, #ffffff);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
}

.product-main-img {
    max-width: 100%;
    max-height: 260px;  /* 减小图片高度 */
    width: auto;
    transition: transform 0.4s ease;
}

.media-container {
    position: relative;
    width: 100%;
    text-align: center;
}

.media-badge {
    position: absolute;
    top: -10px;
    right: 10px;
    background: #0066A1;
    color: white;
    padding: 6px 16px;
    border-radius: 40px;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

/* 右侧详情区 */
.product-details {
    flex: 1.1;
    background: white;
    border-radius: 24px;
    padding: 22px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.product-details h3 {
    font-size: 22px;  /* 减小标题字号 */
    color: #003B5C;
    margin-bottom: 12px;
    font-weight: 700;
}

.detail-desc {
    color: #4A5568;
    line-height: 1.6;
    margin-bottom: 18px;
    font-size: 14px;
}

.feature-list li {
    margin-bottom: 8px;
    font-size: 13px;
    color: #2D3748;
    display: flex;
    align-items: center;
    gap: 8px;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0 0 28px;
}

.check {
    color: #0066A1;
    font-weight: bold;
    font-size: 16px;
}
.detail-btn {
    align-self: flex-start;
    margin-top: auto;
}

/* 响应式 */
@media (max-width: 1024px) {
    .product-showcase {
        flex-direction: column;
        gap: 20px;
    }
    .product-menu {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        max-height: none;
        overflow: visible;
    }
    .product-menu-item {
        flex: 1 1 220px;
    }
    .product-media {
        order: 2;
    }
    .product-details {
        order: 3;
    }
}

@media (max-width: 640px) {
    .product-menu-item {
        flex: 1 1 100%;
    }
    .product-details h3 {
        font-size: 24px;
    }
}

/* ============================================
   悬浮按钮组件 - 全站通用
   ============================================ */

/* 右侧悬浮按钮组 */
.float-buttons {
    position: fixed;
    right: 20px;
    bottom: 100px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.float-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--color-tech-blue);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 102, 161, 0.4);
    transition: all 0.3s;
    position: relative;
    font-size: 24px;
}

.float-btn:hover {
    background: var(--color-deep-blue);
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 102, 161, 0.5);
}

.float-btn .tooltip {
    position: absolute;
    right: 70px;
    background: var(--color-deep-blue);
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.float-btn .tooltip::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    border-width: 6px 0 6px 6px;
    border-style: solid;
    border-color: transparent transparent transparent var(--color-deep-blue);
}

.float-btn:hover .tooltip {
    opacity: 1;
    visibility: visible;
}

/* 联系方式弹窗 */
.float-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.float-modal.active {
    display: flex;
}

.float-modal .modal-content {
    background: white;
    border-radius: 16px;
    padding: 30px;
    max-width: 420px;
    width: 90%;
}

.float-modal h3 {
    color: var(--color-deep-blue);
    margin-bottom: 20px;
    text-align: center;
}

.contact-list {
    margin-bottom: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    padding: 16px;
    background: #F7FAFC;
    border-radius: 12px;
    margin-bottom: 12px;
    cursor: pointer;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.contact-item:hover {
    background: var(--color-light-blue-gray);
    border-color: var(--color-tech-blue);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--color-tech-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-right: 16px;
    flex-shrink: 0;
}

.contact-info {
    flex: 1;
}

.contact-label {
    font-size: 13px;
    color: var(--color-medium-gray);
    margin-bottom: 4px;
}

.contact-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-deep-blue);
}

.contact-hint {
    font-size: 12px;
    color: var(--color-tech-blue);
    margin-top: 4px;
}

.modal-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.float-modal .btn-outline {
    padding: 10px 24px;
    border: 1px solid #0066A1;
    color: #fff;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.float-modal .btn-outline:hover {
    background: var(--color-tech-blue);
    color: white;
}

/* 微信二维码弹窗 */
.wechat-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    z-index: 2001;
    align-items: center;
    justify-content: center;
}

.wechat-modal.active {
    display: flex;
}

.wechat-modal-content {
    background: white;
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    max-width: 320px;
    width: 90%;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.wechat-modal-content h3 {
    color: var(--color-deep-blue);
    margin-bottom: 8px;
    font-size: 18px;
}

.wechat-modal-content p {
    color: var(--color-medium-gray);
    font-size: 14px;
    margin-bottom: 20px;
}

.wechat-qrcode {
    width: 200px;
    height: 200px;
    margin: 0 auto 20px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #E2E8F0;
}

.wechat-qrcode img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.wechat-modal-content .btn-primary {
    background: #07C160;
    border: none;
    padding: 10px 24px;
    border-radius: 6px;
    color: white;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.wechat-modal-content .btn-primary:hover {
    background: #06AD56;
}

/* 复制成功提示 */
.copy-toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--color-deep-blue);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 14px;
    opacity: 0;
    transition: all 0.3s;
    z-index: 3000;
    pointer-events: none;
}

.copy-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* 悬浮按钮移动端适配 */
@media (max-width: 768px) {
    .float-buttons {
        right: 10px;
        bottom: 80px;
    }
    
    .float-btn {
        width: 48px;
        height: 48px;
        font-size: 20px;
    }
    
    .float-btn .tooltip {
        display: none;
    }
}

/* ============================================
   子页面（非首页）统一导航栏样式
   通过 body.sub-page 类触发
   ============================================ */
body.sub-page {
    padding-top: 70px;
}

body.sub-page .site-header {
    background: #003d60 !important;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15) !important;
}

body.sub-page .site-header .nav-desktop a,
body.sub-page .site-header .header-tools .search-btn,
body.sub-page .site-header .header-tools .back-btn {
    color: #ffffff !important;
}

body.sub-page .site-header .nav-desktop a:hover {
    color: #b8eb21 !important;
}

body.sub-page .site-header .nav-desktop a.active {
    color: #b8eb21 !important;
    border-bottom: 2px solid #64b5f6;
}

body.sub-page .site-header .logo-img {
    filter: brightness(0) invert(1);
}

body.sub-page .site-header .btn-contact {
    background: rgba(255, 255, 255, 0.15) !important;
    color: #ffffff !important;
    border: 1px solid rgba(255, 255, 255, 0.3) !important;
}

body.sub-page .site-header .btn-contact:hover {
    background: rgba(255, 255, 255, 0.25) !important;
}