/* Global Styles */
:root {
    --primary-color: #0056b3;
    --secondary-color: #f8b400;
    --dark-color: #333;
    --light-color: #f4f4f4;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --gray-color: #6c757d;
    --accent-color: #e3f2fd;
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #fff;
}

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

a:hover {
    color: var(--secondary-color);
}

ul {
    list-style: none;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

section {
    padding: 80px 0;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 30px;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 14px;
    letter-spacing: 1px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #fff;
}

.btn-primary:hover {
    background-color: #004494;
    color: #fff;
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: #fff;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 36px;
    margin-bottom: 15px;
    color: var(--primary-color);
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--secondary-color);
}

.section-header p {
    font-size: 18px;
    color: var(--gray-color);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--dark-color); /* 与页脚一致的深色背景 */
    box-shadow: var(--box-shadow);
    z-index: 1000;
    padding: 15px 0;
    transition: var(--transition);
}

/* 滚动时采用浅色调（更贴近内容区） */
.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.92);
    backdrop-filter: saturate(140%) blur(6px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.navbar.scrolled .nav-menu a { color: var(--dark-color); }
.navbar.scrolled .logo { color: var(--primary-color); }
.navbar.scrolled .logo span { color: var(--secondary-color); }
.navbar.scrolled .nav-toggle span { background-color: var(--dark-color); }

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 28px;
    font-weight: 700;
    color: #fff; /* 深色导航背景下的白色标识 */
}

.logo span {
    color: var(--secondary-color);
}

.nav-menu {
    display: flex;
}

.nav-menu li {
    margin-left: 30px;
}

.nav-menu a {
    color: #fff; /* 深色背景下的白色文字 */
    font-weight: 600;
    font-size: 16px;
    padding: 10px 0;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

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

.nav-toggle {
    display: none;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: #fff; /* 深色背景下的白色汉堡条 */
    margin: 5px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 180px 0 100px;
    background: linear-gradient(135deg, #f5f7fa 0%, #e3f2fd 100%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero-text {
    flex: 1;
}

.hero-text h1 {
    font-size: 42px;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.hero-text h1 span {
    color: var(--primary-color);
    font-weight: 700;
}

.hero-text p {
    font-size: 18px;
    margin-bottom: 30px;
    color: var(--gray-color);
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 30px 0;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.feature-item i {
    font-size: 20px;
    color: var(--primary-color);
    background-color: rgba(0, 86, 179, 0.1);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-item span {
    font-weight: 600;
    font-size: 16px;
}

.hero-tagline {
    font-size: 20px;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.hero-stocks {
    flex: 0 0 560px; /* 固定桌面宽度 */
    width: 560px;
    max-width: none;
    position: relative; /* 允许内部徽标绝对定位 */
    display: block;
    min-height: 800px; /* 高度加倍 */
    background-image: url('../images/q3.jpeg');
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover; /* 更贴近大型背景覆盖效果 */
    padding: 40px;
    border-radius: 24px;
    background-color: #102331; /* 加深底色以增强对比 */
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.25), 0 0 110px rgba(64, 160, 255, 0.36); /* 加强蓝色发光 */
    overflow: hidden; /* 裁切浮动徽标 */
    will-change: transform, box-shadow;
    animation: breathePulse 8s ease-in-out infinite;
}

/* 外层柔和蓝光的光环（不影响交互） */
.hero-stocks::after {
    content: '';
    position: absolute;
    inset: -12px;
    border-radius: inherit;
    pointer-events: none;
    box-shadow: 0 0 100px 14px rgba(64, 160, 255, 0.32);
    animation: glowPulse 8s ease-in-out infinite;
}

.stock-card {
    background-color: rgba(255, 255, 255, 0.92);
    border-radius: 16px;
    box-shadow: var(--box-shadow);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stock-card:hover {
    transform: translateY(-5px);
    background-color: rgba(255, 255, 255, 1);
}

.stock-logo {
    width: 60px;
    height: 60px;
    background-color: rgba(0, 86, 179, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stock-logo i {
    font-size: 28px;
    color: var(--primary-color);
}

.stock-info {
    flex: 1;
}

.stock-info h3 {
    font-size: 18px;
    margin-bottom: 5px;
}

.stock-change {
    font-weight: 700;
    font-size: 16px;
}

.stock-change.positive {
    color: var(--success-color);
}

.stock-change.negative {
    color: var(--danger-color);
}

/* Services Section */
.services {
    background-color: #fff;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: var(--box-shadow);
    padding: 30px;
    transition: var(--transition);
    border: 1px solid #eee;
}

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

.service-icon {
    width: 70px;
    height: 70px;
    background-color: rgba(0, 86, 179, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.service-icon i {
    font-size: 30px;
    color: var(--primary-color);
}

.service-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.service-card p {
    margin-bottom: 20px;
    color: var(--gray-color);
}

.service-features {
    margin-top: 20px;
}

.service-feature {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 15px;
}

.service-feature i {
    color: var(--success-color);
    font-size: 16px;
    margin-top: 5px;
}

.service-feature p {
    margin-bottom: 0;
    font-size: 14px;
}

/* About Section */
.about {
    background-color: #f9f9f9;
}

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-image {
    flex: 1;
}

.about-image img {
    border-radius: 10px;
    box-shadow: var(--box-shadow);
}

.about-text {
    flex: 1;
}

.about-text h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.about-text p {
    margin-bottom: 20px;
}

.about-features {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 30px;
}

.about-features .feature {
    display: flex;
    align-items: center;
    gap: 10px;
}

.about-features .feature i {
    color: var(--success-color);
    font-size: 20px;
}

.about-features .feature span {
    font-weight: 600;
}

/* Testimonials Section */
.testimonials {
    background-color: #fff;
}

.testimonials-slider {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: var(--box-shadow);
    padding: 30px;
    transition: var(--transition);
    border: 1px solid #eee;
}

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

.testimonial-content {
    margin-bottom: 20px;
}

.testimonial-content p {
    font-style: italic;
    color: var(--dark-color);
    position: relative;
    padding: 0 15px;
}

.testimonial-content p::before,
.testimonial-content p::after {
    content: '"';
    font-size: 24px;
    color: var(--primary-color);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.testimonial-author h4 {
    font-size: 18px;
    margin-bottom: 5px;
}

.testimonial-author p {
    color: var(--gray-color);
    font-size: 14px;
}

/* Contact Section */
.contact {
    background-color: #f9f9f9;
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 50px;
    align-items: center;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.contact-item i {
    font-size: 24px;
    color: var(--primary-color);
    width: 50px;
    height: 50px;
    background-color: rgba(0, 86, 179, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-item h3 {
    font-size: 20px;
    margin-bottom: 5px;
}

.contact-item p {
    color: var(--gray-color);
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
}

.contact-form {
    background-color: #fff;
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--box-shadow);
}

.form-title {
    color: #333;
    font-size: 32px;
    margin-bottom: 12px;
    font-weight: 700;
    line-height: 1.2;
    text-align: center;
}

.form-title .highlight {
    color: #0088ff;
}

.form-subtitle {
    color: var(--gray-color);
    font-size: 16px;
    margin-bottom: 20px;
    text-align: center;
}

.form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    flex: 1;
    margin-bottom: 20px;
}

.form-group.full-width {
    width: 100%;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    transition: var(--transition);
    background-color: #fff;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.submit-btn {
    width: 100%;
    padding: 15px;
    font-size: 18px;
    margin-top: 10px;
    background-color: #0088ff;
    border-radius: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.submit-btn:hover {
    background-color: #0066cc;
}

.form-note {
    text-align: center;
    margin-top: 15px;
    color: var(--gray-color);
    font-size: 14px;
}

.form-note i {
    color: var(--success-color);
    margin-right: 5px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    height: 150px;
    resize: none;
}

/* Footer */
.footer {
    background-color: var(--dark-color);
    color: #fff;
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.footer-logo {
    font-size: 28px;
    font-weight: 700;
    color: #fff;
}

.footer-logo span {
    color: var(--secondary-color);
}

.footer-links ul {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: #fff;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: auto;
    min-width: 140px;
    height: 50px;
    padding: 0 16px;
    background-color: var(--primary-color);
    color: #fff;
    border-radius: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    white-space: nowrap;
    box-shadow: var(--box-shadow);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.active {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--secondary-color);
    color: #fff;
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-content {
        flex-direction: column;
    }
    
    .hero-text, .hero-stocks {
        max-width: 100%;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .section-header h2 {
        font-size: 32px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background-color: #fff;
        flex-direction: column;
        align-items: center;
        padding: 20px 0;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
        transition: var(--transition);
    }
    /* 移动端下，白色下拉菜单使用深色文字 */
    .nav-menu a { color: var(--dark-color); }
    .nav-menu a:hover { color: var(--secondary-color); }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 10px 0;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .hero {
        padding: 150px 0 80px;
    }
    
    .hero-text h1 {
        font-size: 36px;
    }
    
    .services-grid, .testimonials-slider {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 20px;
    }
    
    .footer-links ul {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .hero-features {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 10px;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
}
/* 股票浮动徽标（最小化显示） */
.stock-badge {
    position: absolute;
    left: 0;
    top: 0;
    width: 180px;
    padding: 12px 14px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.25), 0 0 28px rgba(0, 128, 255, 0.18);
    display: flex;
    align-items: center;
    gap: 12px;
}

.stock-badge .badge-logo img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.stock-badge .badge-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stock-badge .badge-name {
    font-size: 16px;
    font-weight: 700;
    color: #0e2a47;
}

.stock-badge .badge-change {
    font-size: 14px;
    font-weight: 700;
}

@keyframes badgeFloat {
    0% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
    100% { transform: translateY(0); }
}

.stock-badge { animation: badgeFloat 6s ease-in-out infinite; }
.stock-badge:nth-child(2) { animation-duration: 7s; }
.stock-badge:nth-child(3) { animation-duration: 8s; }

/* 响应式缩放：在窄屏时降低高度与内边距 */
@media (max-width: 992px) {
    .hero-stocks {
        width: 100%;
        max-width: 100%;
        min-height: 520px;
        padding: 24px;
        border-radius: 18px;
        background-size: cover;
        animation-duration: 9s; /* 移动端节奏稍慢 */
    }
}

@media (max-width: 768px) {
    .hero-stocks {
        min-height: 440px;
    }
    .stock-badge {
        width: 160px;
        padding: 10px 12px;
        gap: 10px;
    }
    .stock-badge .badge-logo img {
        width: 36px;
        height: 36px;
    }
    .stock-badge .badge-name { font-size: 15px; }
    .stock-badge .badge-change { font-size: 13px; }
}

@media (max-width: 576px) {
    .stock-badge { width: 150px; }
    .hero-stocks { animation-duration: 10s; }
}
.stock-badge { animation: badgeFloat 6s ease-in-out infinite; }
.stock-badge:nth-child(2) { animation-duration: 7s; }
.stock-badge:nth-child(3) { animation-duration: 8s; }

/* 容器呼吸动画 */
@keyframes breathePulse {
    0% { transform: scale(0.97); box-shadow: 0 30px 60px rgba(0,0,0,0.25), 0 0 70px rgba(64,160,255,0.28); }
    50% { transform: scale(1.03); box-shadow: 0 35px 70px rgba(0,0,0,0.28), 0 0 120px rgba(64,160,255,0.45); }
    100% { transform: scale(0.97); box-shadow: 0 30px 60px rgba(0,0,0,0.25), 0 0 70px rgba(64,160,255,0.28); }
}

/* 蓝色光环脉冲 */
@keyframes glowPulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}
/* 单行页脚样式：品牌标识 + 版权信息一行展示（覆盖移动端列布局） */
.footer-content.single-line {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-bottom: 0;
}

.footer-copy {
    color: #fff;
    font-size: 14px;
}
.contact-cta {
    display: flex;
    flex-direction: column;
    justify-content: center; /* 垂直居中 */
    align-items: flex-start; /* 左对齐 */
    min-height: 100%;
}

.contact-cta .form-title,
.contact-cta .form-subtitle {
    text-align: left; /* 覆盖默认居中，让左侧更自然 */
}