:root {
    --neon-blue: #00D1FF;
    --neon-red: #E63946;
    --tech-bg: #050505;
}

/* 扫描线效果 */
.scanline {
    width: 100%;
    height: 2px;
    background: rgba(0, 209, 255, 0.05);
    position: fixed;
    top: 0;
    animation: scan 8s linear infinite;
    pointer-events: none;
    z-index: 9999;
}

@keyframes scan {
    0% { top: 0%; }
    100% { top: 100%; }
}

/* Hero Banner 容器 */
.hero-banner {
    background: var(--tech-bg);
    min-height: 100vh;
    position: relative;
}

.scanline-banner {
    width: 100%;
    height: 2px;
    background: rgba(0, 209, 255, 0.05);
    position: absolute;
    top: 0;
    animation: scan 8s linear infinite;
    pointer-events: none;
    z-index: 99;
}

/* Swiper 样式 */
.swiper {
    width: 100%;
    height: 100%;
}

.swiper-slide {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--tech-bg);
    overflow: hidden;
    min-height: 100vh;
}

.slide-bg-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(0, 26, 44, 0.8) 0%, #050505 100%);
    z-index: 1;
}

/* 第一个 slide - 蓝色 (AI主题) */
.swiper-slide[data-slide="1"] .slide-bg-overlay {
    background: radial-gradient(circle at center, rgba(0, 100, 255, 0.15) 0%, #050505 100%);
}

/* 第二个 slide - 红色 (政策补贴主题) */
.swiper-slide[data-slide="2"] .slide-bg-overlay {
    background: radial-gradient(circle at center, rgba(230, 57, 70, 0.15) 0%, #050505 100%);
}

/* 第三个 slide - 青色 (托管服务主题) */
.swiper-slide[data-slide="3"] .slide-bg-overlay {
    background: radial-gradient(circle at center, rgba(0, 217, 255, 0.15) 0%, #050505 100%);
}

.slide-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 40px 20px;
    max-width: 1000px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* Badge 样式 */
.badge {
    display: inline-block;
    padding: 10px 20px;
    border: 1px solid rgba(0, 209, 255, 0.3);
    color: var(--neon-blue);
    font-size: 12px;
    letter-spacing: 0.4em;
    margin-bottom: 30px;
    text-transform: uppercase;
    border-radius: 3px;
}

.badge i {
    margin-right: 8px;
}

.badge-red {
    border-color: rgba(230, 57, 70, 0.3);
    color: var(--neon-red);
}

/* Hero Title */
.hero-title {
    font-size: 64px;
    font-weight: bold;
    margin-bottom: 30px;
    line-height: 1.4;
    text-shadow: 0 0 30px rgba(0, 209, 255, 0.4);
    font-family: 'Fira Code', monospace;
    color: #ffffff;
}

.subtitle-text {
    color: #f0f0f0;
    font-weight: 300;
    display: block;
}

.subtitle-cyan {
    color: var(--neon-blue);
    display: block;
}

/* Hero Description */
.hero-description {
    color: #aaa;
    max-width: 800px;
    margin: 0 auto 40px;
    font-size: 16px;
    line-height: 1.8;
}

/* CTA Button */
.cta-button {
    border: 1px solid var(--neon-blue);
    background: transparent;
    color: var(--neon-blue);
    padding: 14px 35px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 12px;
    font-weight: bold;
    cursor: pointer;
    border-radius: 2px;
}

.cta-button:hover {
    background: var(--neon-blue);
    color: #000;
    box-shadow: 0 0 30px var(--neon-blue);
}

/* 动画 */
.ai-pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.05); opacity: 1; }
    100% { transform: scale(1); opacity: 0.5; }
}

/* Swiper 分页器 */
.swiper-pagination {
    bottom: 30px;
}

.swiper-pagination-bullet {
    width: 16px;
    height: 16px;
    background: radial-gradient(circle, #fff 15%, #FFA500 70%);
    opacity: 1;
    transition: all 0.3s ease;
    border-radius: 50%;
    box-shadow: 0 0 12px rgba(255, 165, 0, 0.5);
    position: relative;
}

/* 太阳光晕效果 */
.swiper-pagination-bullet::after {
    content: '';
    position: absolute;
    top: -6px;
    left: -6px;
    right: -6px;
    bottom: -6px;
    border-radius: 50%;
    background: rgba(255, 165, 0, 0.3);
    filter: blur(6px);
    z-index: -1;
    animation: sun-glow 2s infinite ease-in-out;
}

.swiper-pagination-bullet-active {
    width: 24px;
    height: 24px;
    background: radial-gradient(circle, #fff 15%, #FFA500 70%);
    transform: scale(1.5);
    box-shadow: 0 0 25px rgba(255, 165, 0, 1), 0 0 45px rgba(255, 165, 0, 0.6);
}

.swiper-pagination-bullet-active::after {
    animation: sun-glow-active 2s infinite ease-in-out;
}

/* 移除之前的 nth-child 样式 */
.swiper-pagination-bullet:nth-child(1),
.swiper-pagination-bullet:nth-child(2),
.swiper-pagination-bullet:nth-child(3) {
    background: radial-gradient(circle, #fff 15%, #FFA500 70%);
    box-shadow: 0 0 12px rgba(255, 165, 0, 0.5);
}

.swiper-pagination-bullet-active:nth-child(1),
.swiper-pagination-bullet-active:nth-child(2),
.swiper-pagination-bullet-active:nth-child(3) {
    box-shadow: 0 0 25px rgba(255, 165, 0, 1), 0 0 45px rgba(255, 165, 0, 0.6);
}

/* 光晕呼吸动画 */
@keyframes sun-glow {
    0%, 100% { transform: scale(1); opacity: 0.4; }
    50% { transform: scale(1.3); opacity: 0.7; }
}

@keyframes sun-glow-active {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.5); opacity: 1; }
}

/* Swiper 导航按钮 */
.swiper-button-next,
.swiper-button-prev {
    width: 50px;
    height: 50px;
    background: rgba(0, 209, 255, 0.1);
    color: var(--neon-blue);
    transition: all 0.3s ease;
}

.swiper-button-next:hover,
.swiper-button-prev:hover {
    background: rgba(0, 209, 255, 0.3);
}

.swiper-button-next::after,
.swiper-button-prev::after {
    font-size: 24px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 32px;
        margin-bottom: 20px;
    }

    .hero-description {
        font-size: 12px;
        margin-bottom: 30px;
    }

    .swiper-slide {
        min-height: 100vh;
    }

    .swiper-button-next,
    .swiper-button-prev {
        display: none;
    }

    .cta-button {
        padding: 10px 25px;
        font-size: 11px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 24px;
        margin-bottom: 15px;
    }

    .badge {
        font-size: 8px;
        padding: 6px 12px;
        margin-bottom: 20px;
    }

    .slide-content {
        padding: 30px 15px;
    }

    .hero-description {
        font-size: 11px;
        margin-bottom: 20px;
    }
}

/* 修复 Swiper 与现有代码的兼容性 */
.swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ===== ABOUT US SECTION ===== */
#about-us {
    position: relative;
    background: #ffffff;
    padding: 160px 0;
    overflow: hidden;
}

.tech-grid {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 2px 2px, rgba(10, 37, 64, 0.05) 1px, transparent 0);
    background-size: 40px 40px;
}

#about-us .scan-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--neon-blue), transparent);
    animation: scan 8s linear infinite;
    opacity: 0.3;
    z-index: 5;
}

.section-title-bg {
    font-family: 'Space Mono', monospace;
    position: absolute;
    top: -50px;
    left: -20px;
    font-size: 12rem;
    font-weight: 900;
    color: rgba(10, 37, 64, 0.02);
    line-height: 1;
    z-index: 0;
    letter-spacing: -3px;
}

/* 玻璃面板卡片 */
.glass-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(10, 37, 64, 0.05);
    border-left: 4px solid #0A2540;
    padding: 32px;
    transition: all 0.3s ease;
    position: relative;
    z-index: 10;
}

.glass-card:hover {
    transform: translateX(10px);
    border-left-color: var(--neon-blue);
    box-shadow: 0 10px 40px rgba(0, 209, 255, 0.1);
}

.glass-card .group-number {
    font-size: 5rem;
    font-weight: 900;
    color: rgba(10, 37, 64, 0.1);
    font-family: 'Space Mono', monospace;
    transition: color 0.3s ease;
}

.glass-card:hover .group-number {
    color: rgba(0, 209, 255, 0.2);
}

.glass-card h4 {
    font-size: 2rem;
    font-weight: bold;
    color: #0A2540;
    margin-bottom: 24px;
}

.glass-card p {
    color: #444;
    line-height: 2;
    font-size: 1.25rem;
    margin: 0;
}

/* 指标卡片 */
.metric-card {
    padding: 40px 20px;
    text-align: center;
    transition: all 0.3s ease;
    min-height: 140px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.metric-card.dark {
    background: #0A2540;
    color: white;
}

.metric-card.blue {
    background: var(--neon-blue);
    color: #0A2540;
}

.metric-card.light {
    background: #F8FAFC;
    color: #0A2540;
}

.metric-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.metric-number {
    display: block;
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 12px;
    font-family: 'Space Mono', monospace;
    line-height: 1;
}

.metric-label {
    font-size: 0.875rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-weight: bold;
    opacity: 0.9;
    white-space: nowrap;
    line-height: 1.2;
}

/* 左侧内容 */
#about-us .about-left {
    position: relative;
    z-index: 10;
    padding-right: 30px;
}

.about-badge {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.about-badge-line {
    width: 32px;
    height: 2px;
    background: var(--neon-red);
}

.about-badge-text {
    font-size: 1rem;
    font-weight: 900;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--neon-red);
}

#about-us h2 {
    font-size: 4rem;
    font-weight: 900;
    color: #0A2540;
    line-height: 1.15;
    letter-spacing: -2px;
    margin-bottom: 48px;
    font-family: 'Inter', 'Fira Code', sans-serif;
    word-break: keep-all;
    overflow-wrap: break-word;
}

#about-us h2 .gradient-text {
    background: linear-gradient(135deg, var(--neon-blue) 0%, #0066CC 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

#about-us .about-description {
    font-size: 1.5rem;
    color: #444;
    line-height: 2;
    margin-bottom: 56px;
}

#about-us .about-description .highlight {
    color: #0A2540;
    border-bottom: 3px solid rgba(0, 209, 255, 0.4);
    font-weight: 600;
}

/* CTA 按钮 */
.cta-btn-modern {
    background: #0A2540;
    color: white;
    padding: 24px 60px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-size: 16px;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 20px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    border-radius: 0;
}

.cta-btn-modern:hover {
    background: var(--neon-red);
    padding-right: 60px;
    box-shadow: 0 10px 30px rgba(230, 57, 70, 0.3);
    color: white;
}

.cta-btn-modern i {
    transition: transform 0.3s ease;
}

.cta-btn-modern:hover i {
    transform: translateX(5px);
}

/* About Us 响应式 */
@media (max-width: 1200px) {
    #about-us h2 {
        font-size: 3.5rem;
    }
    
    #about-us .about-left {
        padding-right: 20px;
    }
}

@media (max-width: 1024px) {
    .section-title-bg {
        font-size: 10rem;
    }
    
    #about-us h2 {
        font-size: 3rem;
    }
    
    .glass-card h4 {
        font-size: 1.75rem;
    }
    
    .glass-card p {
        font-size: 1.125rem;
    }
    
    #about-us .about-description {
        font-size: 1.375rem;
    }
    
    .metric-number {
        font-size: 3rem;
    }
    
    .metric-label {
        font-size: 0.75rem;
        white-space: normal;
        text-align: center;
    }
}

@media (max-width: 991px) {
    #about-us .about-left {
        padding-right: 0;
        margin-bottom: 50px;
        text-align: center;
    }
    
    #about-us h2 {
        font-size: 3rem;
    }
    
    .about-badge {
        justify-content: center;
    }
    
    #about-us .about-description {
        text-align: center;
    }
    
    .cta-btn-modern {
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    #about-us {
        padding: 100px 0;
    }
    
    .section-title-bg {
        font-size: 6rem;
        top: -30px;
    }
    
    #about-us h2 {
        font-size: 2.5rem;
        text-align: center;
    }
    
    .glass-card {
        padding: 32px;
        margin-bottom: 28px;
    }
    
    .glass-card h4 {
        font-size: 1.5rem;
    }
    
    .glass-card p {
        font-size: 1.0625rem;
    }
    
    .metric-card {
        padding: 28px 15px;
        margin-bottom: 20px;
        min-height: 110px;
    }
    
    .metric-number {
        font-size: 2.25rem;
    }
    
    .metric-label {
        font-size: 0.65rem;
    }
    
    #about-us .about-left {
        margin-bottom: 60px;
        text-align: center;
    }
    
    #about-us .about-description {
        font-size: 1.25rem;
        text-align: center;
    }
    
    .cta-btn-modern {
        margin: 0 auto;
        padding: 20px 45px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    #about-us {
        padding: 70px 0;
    }
    
    .section-title-bg {
        font-size: 4rem;
    }
    
    #about-us h2 {
        font-size: 2rem;
        white-space: normal;
        word-break: keep-all;
    }
    
    .cta-btn-modern {
        padding: 18px 36px;
        font-size: 13px;
    }
    
    .metric-number {
        font-size: 1.75rem;
    }
    
    .metric-label {
        font-size: 0.6rem;
    }
    
    .glass-card .group-number {
        font-size: 3rem;
    }
    
    .glass-card h4 {
        font-size: 1.25rem;
    }
    
    .glass-card p {
        font-size: 1rem;
    }
    
    #about-us .about-description {
        font-size: 1.125rem;
        text-align: center;
    }
}