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

:root {
    --bg-dark: #0a0e27;
    --bg-darker: #050a1a;
    --primary: #00d4ff;
    --primary-dark: #0088ff;
    --secondary: #ff00ff;
    --accent: #00ff88;
    --text-light: #e0e0e0;
    --text-muted: #888;
    --card-bg: rgba(20, 30, 60, 0.8);
    --card-border: 1px solid rgba(0, 212, 255, 0.3);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Trebuchet MS, sans-serif;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* 动画背景粒子效果 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 0, 255, 0.06) 0%, transparent 50%);
    animation: bgPulse 8s ease-in-out infinite;
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* ==================== 导航栏 ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 14, 39, 0.95);
    border-bottom: 2px solid rgba(0, 212, 255, 0.3);
    z-index: 1000;
    backdrop-filter: blur(10px);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.1);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    z-index: 10;
}

.logo-img {
    height: 45px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.5));
    transition: all 0.3s ease;
}

.logo:hover .logo-img {
    filter: drop-shadow(0 0 20px rgba(0, 212, 255, 0.8));
    transform: scale(1.05);
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    font-size: 15px;
    transition: all 0.3s ease;
    position: relative;
    cursor: pointer;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.6);
}

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

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 6px;
    z-index: 11;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.6);
}

/* ==================== Hero 区域 ==================== */
.hero {
    margin-top: 70px;
    min-height: calc(100vh - 70px);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05) 0%, rgba(255, 0, 255, 0.03) 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 40%, rgba(0, 212, 255, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 70% 70%, rgba(255, 0, 255, 0.1) 0%, transparent 40%);
    animation: heroGlow 6s ease-in-out infinite;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    animation: fadeInUp 1s ease-out;
    padding: 40px;
}

.hero-title {
    font-size: 72px;
    font-weight: 900;
    margin-bottom: 20px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 50%, var(--primary) 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: titleShine 3s ease-in-out infinite;
    letter-spacing: -2px;
    text-shadow: 0 0 40px rgba(0, 212, 255, 0.4);
}

.hero-subtitle {
    font-size: 24px;
    margin-bottom: 40px;
    color: var(--text-light);
    font-weight: 300;
    letter-spacing: 1px;
    animation: fadeInUp 1s ease-out 0.1s both;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.2s both;
}

/* ==================== 按钮样式 ==================== */
.btn {
    padding: 14px 36px;
    border: 2px solid;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-color: var(--primary);
    color: var(--bg-dark);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.5), inset 0 0 20px rgba(255, 255, 255, 0.1);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 
        0 0 40px rgba(0, 212, 255, 0.8),
        0 0 80px rgba(0, 212, 255, 0.4),
        inset 0 0 20px rgba(255, 255, 255, 0.2);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

.btn-secondary {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-3px);
    box-shadow: 
        0 0 30px rgba(0, 212, 255, 0.6),
        inset 0 0 20px rgba(0, 212, 255, 0.1);
}

/* ==================== 通用区域样式 ==================== */
section {
    padding: 100px 0;
    position: relative;
    z-index: 1;
}

.section-title {
    font-size: 48px;
    font-weight: 900;
    text-align: center;
    margin-bottom: 20px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 50%, var(--primary) 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
    animation: titleShine 3s ease-in-out infinite;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 18px;
    margin-bottom: 50px;
    letter-spacing: 1px;
}

/* ==================== 公司简介 ==================== */
.about {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.03) 0%, rgba(255, 0, 255, 0.02) 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h3 {
    font-size: 32px;
    margin-bottom: 20px;
    color: var(--primary);
    font-weight: 700;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.4);
}

.about-text h4 {
    font-size: 20px;
    margin-top: 25px;
    margin-bottom: 15px;
    color: var(--secondary);
    font-weight: 600;
    position: relative;
    display: inline-block;
    padding-bottom: 8px;
}

.about-text h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--secondary), transparent);
    box-shadow: 0 0 10px rgba(255, 0, 255, 0.6);
}

.about-text p {
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
}

.stat-item {
    background: var(--card-bg);
    padding: 35px;
    border-radius: 12px;
    text-align: center;
    border: var(--card-border);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 0%, rgba(0, 212, 255, 0.2), transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 212, 255, 0.6);
    box-shadow: 
        0 10px 40px rgba(0, 212, 255, 0.3),
        inset 0 0 20px rgba(0, 212, 255, 0.05);
}

.stat-item:hover::before {
    opacity: 1;
}

.stat-number {
    font-size: 42px;
    font-weight: 900;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.stat-label {
    color: var(--text-muted);
    font-size: 14px;
    letter-spacing: 1px;
}

/* ==================== 业务介绍 ==================== */
.business {
    background: linear-gradient(135deg, rgba(255, 0, 255, 0.02) 0%, rgba(0, 212, 255, 0.03) 100%);
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 35px;
    margin-bottom: 80px;
}

.business-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 45px;
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.1);
    border: var(--card-border);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.business-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent 30%, rgba(0, 212, 255, 0.1) 50%, transparent 70%);
    animation: shine 3s infinite;
    opacity: 0;
}

.business-card:hover::before {
    opacity: 1;
}

.business-card:hover {
    transform: translateY(-15px);
    border-color: rgba(0, 212, 255, 0.6);
    box-shadow: 
        0 15px 50px rgba(0, 212, 255, 0.3),
        inset 0 0 30px rgba(0, 212, 255, 0.05);
}

.business-icon {
    font-size: 56px;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.4));
}

.business-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--primary);
    font-weight: 700;
    text-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
}

.business-card p {
    color: var(--text-light);
    margin-bottom: 25px;
    line-height: 1.8;
}

.business-features {
    list-style: none;
}

.business-features li {
    padding: 10px 0;
    color: var(--text-light);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding-left: 20px;
}

.business-features li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-size: 20px;
    text-shadow: 0 0 10px rgba(0, 255, 136, 0.6);
}

.business-features li:hover {
    color: var(--primary);
    transform: translateX(5px);
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

/* ==================== 旗下机构 ==================== */
.subsidiaries {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05) 0%, rgba(255, 0, 255, 0.03) 100%);
    padding: 60px;
    border-radius: 12px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    margin-top: 60px;
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.1);
}

.subsidiaries-title {
    color: var(--primary);
    text-align: center;
    font-size: 32px;
    margin-bottom: 40px;
    font-weight: 700;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.4);
}

.subsidiaries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.subsidiary-item {
    background: rgba(20, 30, 60, 0.9);
    padding: 30px;
    border-radius: 10px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    color: var(--text-light);
    transition: all 0.3s ease;
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.05);
}

.subsidiary-item:hover {
    transform: translateY(-8px);
    box-shadow: 
        0 10px 30px rgba(0, 212, 255, 0.2),
        inset 0 0 20px rgba(0, 212, 255, 0.05);
    border-color: rgba(0, 212, 255, 0.5);
}

.subsidiary-item h4 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--secondary);
    font-weight: 700;
}

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

/* ==================== 投资者关系 ==================== */
.investors {
    background: linear-gradient(135deg, rgba(255, 0, 255, 0.02) 0%, rgba(0, 212, 255, 0.03) 100%);
}

.investor-content {
    display: grid;
    gap: 40px;
}

.investor-info,
.investor-metrics {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.1);
    border: var(--card-border);
}

.investor-info h3,
.investor-metrics h3 {
    font-size: 28px;
    margin-bottom: 30px;
    color: var(--primary);
    font-weight: 700;
    text-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.info-item label {
    font-weight: 600;
    color: var(--secondary);
    display: block;
    margin-bottom: 8px;
}

.info-item p {
    color: var(--text-light);
    font-size: 18px;
    font-weight: 500;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 25px;
}

.metric-card {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05) 0%, rgba(255, 0, 255, 0.03) 100%);
    padding: 30px;
    border-radius: 10px;
    color: var(--text-light);
    text-align: center;
    border: 1px solid rgba(0, 212, 255, 0.2);
    transition: all 0.3s ease;
}

.metric-card:hover {
    transform: translateY(-8px);
    box-shadow: 
        0 10px 30px rgba(0, 212, 255, 0.2),
        inset 0 0 20px rgba(0, 212, 255, 0.05);
    border-color: rgba(0, 212, 255, 0.5);
}

.metric-label {
    font-size: 14px;
    opacity: 0.8;
    margin-bottom: 10px;
}

.metric-value {
    font-size: 28px;
    font-weight: 900;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.investor-notice {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.08) 0%, rgba(255, 0, 255, 0.04) 100%);
    padding: 40px;
    border-radius: 10px;
    border-left: 4px solid var(--primary);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-left: 4px solid var(--primary);
}

.investor-notice h3 {
    color: var(--primary);
    margin-bottom: 15px;
    font-weight: 700;
}

.investor-notice p {
    color: var(--text-light);
    line-height: 1.8;
}

/* ==================== 联系我们 ==================== */
.contact {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.03) 0%, rgba(255, 0, 255, 0.02) 100%);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    padding: 40px;
    background: var(--card-bg);
    border-radius: 12px;
    border: var(--card-border);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.1);
}

.contact-info h3 {
    font-size: 24px;
    margin-bottom: 40px;
    color: var(--primary);
    font-weight: 700;
    text-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    transition: all 0.3s ease;
    padding: 15px;
    border-radius: 8px;
}

.contact-item:hover {
    background: rgba(0, 212, 255, 0.05);
    transform: translateX(5px);
}

.contact-icon {
    font-size: 32px;
    flex-shrink: 0;
    filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.4));
}

.contact-item h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--secondary);
}

.contact-item p {
    color: var(--text-muted);
    line-height: 1.6;
}

/* ==================== 联系表单 ==================== */
.contact-form {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.1);
    border: var(--card-border);
}

.contact-form h3 {
    font-size: 24px;
    margin-bottom: 30px;
    color: var(--primary);
    font-weight: 700;
    text-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px;
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
    transition: all 0.3s ease;
    background: rgba(10, 14, 39, 0.6);
    color: var(--text-light);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 
        0 0 0 3px rgba(0, 212, 255, 0.2),
        inset 0 0 20px rgba(0, 212, 255, 0.1);
    background: rgba(10, 14, 39, 0.8);
}

/* ==================== 页脚 ==================== */
.footer {
    background: linear-gradient(180deg, rgba(5, 10, 26, 0.95) 0%, rgba(0, 0, 0, 0.95) 100%);
    color: white;
    padding: 60px 0 20px;
    border-top: 2px solid rgba(0, 212, 255, 0.3);
    box-shadow: 0 -10px 40px rgba(0, 212, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--primary);
    font-weight: 700;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

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

.footer-section li {
    margin-bottom: 12px;
}

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

.footer-section a:hover {
    color: var(--primary);
    transform: translateX(5px);
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

.footer-bottom {
    border-top: 1px solid rgba(0, 212, 255, 0.2);
    padding-top: 30px;
    text-align: center;
    color: var(--text-muted);
}

.footer-bottom p {
    margin: 8px 0;
    font-size: 14px;
}

.footer-bottom a {
    color: var(--primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-bottom a:hover {
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.6);
}

/* ==================== 动画定义 ==================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bgPulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

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

@keyframes titleShine {
    0%, 100% {
        background-position: 0% center;
    }
    50% {
        background-position: 100% center;
    }
}

@keyframes shine {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
    }
    100% {
        transform: translateX(100%) translateY(100%) rotate(45deg);
    }
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 14, 39, 0.98);
        flex-direction: column;
        gap: 0;
        padding: 20px;
        box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
        display: none;
        z-index: 10;
        border-bottom: 2px solid rgba(0, 212, 255, 0.3);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-link {
        padding: 12px 0;
    }

    .hero-title {
        font-size: 48px;
    }

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

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

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

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

    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .section-title {
        font-size: 36px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .logo-text {
        font-size: 16px;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .section-title {
        font-size: 28px;
    }

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

    .nav-menu {
        gap: 0;
    }

    section {
        padding: 60px 0;
    }
}