/* 关于页面特有样式 */
.active {
    color: var(--accent) !important;
    text-shadow: 0 0 15px rgba(128, 128, 128, 0.8) !important;
}

.active::after {
    width: 100% !important;
    box-shadow: 0 0 15px rgba(128, 128, 128, 1) !important;
}

/* 容器通用样式调整 */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
}

/* 关于页面英雄区 */
.about-hero {
    height: 60vh;
    background: linear-gradient(135deg, var(--black) 0%, var(--light-black) 40%, var(--dark-gray) 100%);
    display: flex;
    align-items: center;
    text-align: center;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.about-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 70% 30%, rgba(128, 128, 128, 0.1) 0%, rgba(0, 0, 0, 0.9) 70%);
    z-index: 1;
}

.about-hero-content {
    position: relative;
    z-index: 3;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 1px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.about-hero-content h1 span {
    color: var(--accent);
    text-shadow: 0 2px 4px rgba(128, 128, 128, 0.5);
}

.about-hero-content p {
    font-size: 1.5rem;
    color: var(--gray);
}

/* 关于介绍部分 */
.about-intro {
    padding: 100px 0;
    background-color: var(--dark-gray);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.about-intro-content {
    max-width: 1000px;
    margin: 0 auto;
}

.about-text {
    text-align: center;
    margin-bottom: 50px;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--gray);
}

/* 起源部分 */
.origin {
    padding: 100px 0;
    background-color: var(--light-black);
    position: relative;
    overflow: hidden;
}

.origin::before {
    content: '';
    position: absolute;
    top: -150px;
    right: -150px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent) 0%, rgba(128, 128, 128, 0) 70%);
    opacity: 0.1;
}

.origin-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 40px;
    text-align: left;
}

.origin-text {
    flex: 0 0 55%;
    max-width: 600px;
}

.origin-text p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--gray);
}

.origin-image {
    flex: 0 0 35%;
    text-align: center;
}

.image-container {
    position: relative;
    margin: 0 auto;
    max-width: 300px;
}

.founder-img {
    width: 100%;
    height: 350px;
    background-color: #333;
    border-radius: 10px;
    margin-bottom: 10px;
    background: linear-gradient(rgba(18, 18, 18, 0.2), rgba(18, 18, 18, 0.2)), url('../tupian/cap75t.JPG') no-repeat center center/cover;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.founder-img:hover {
    transform: scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 30px rgba(128, 128, 128, 0.2);
}

.caption {
    font-size: 1rem;
    color: var(--gray);
    text-align: center;
}

/* 原理部分 */
.principles {
    padding: 100px 0;
    background-color: var(--dark-gray);
    position: relative;
}

.principles::after {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -100px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent) 0%, rgba(128, 128, 128, 0) 70%);
    opacity: 0.1;
    z-index: 1;
}

.principles-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    text-align: left;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 50px;
}

/* 简化的分隔线 */
.principles-content::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 40px;
    height: 1px;
    background: #444;
    transform: translate(-50%, -50%);
    z-index: 1;
}

.principles-content::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 1px;
    height: 40px;
    background: #444;
    transform: translate(-50%, -50%);
    z-index: 1;
}

/* 简化动画效果，通过JavaScript统一处理 */

.principle-item {
    display: flex;
    margin-bottom: 0;
    background: #1a1a1a;
    border-radius: 12px;
    padding: 30px;
    transition: all 0.3s ease;
    border: 1px solid #333;
    position: relative;
    overflow: hidden;
    min-height: 180px;
}

/* 统一的黑色主题 */
.principle-item:nth-child(1),
.principle-item:nth-child(2),
.principle-item:nth-child(3),
.principle-item:nth-child(4) {
    background: #1a1a1a;
    border-color: #333;
}

.principle-item:hover {
    background: #222;
    border-color: #555;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

/* 简化后的卡片样式 - 移除复杂伪元素 */

.principle-icon {
    flex: 0 0 70px;
    height: 70px;
    border-radius: 50%;
    background: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 25px;
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
}

.principle-item:hover .principle-icon {
    background: #444;
    transform: scale(1.05);
}

/* 添加顺序数字 */
.principle-icon::after {
    content: '';
    position: absolute;
    top: -8px;
    right: -8px;
    width: 24px;
    height: 24px;
    background: #007bff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
    color: white;
    border: 2px solid #1a1a1a;
    z-index: 3;
    transition: all 0.3s ease;
}

.principle-item:nth-child(1) .principle-icon::after {
    content: '1';
    background: #007bff;
}

.principle-item:nth-child(2) .principle-icon::after {
    content: '2';
    background: #28a745;
}

.principle-item:nth-child(3) .principle-icon::after {
    content: '3';
    background: #ffc107;
    color: #000;
}

.principle-item:nth-child(4) .principle-icon::after {
    content: '4';
    background: #dc3545;
    }

.principle-item:hover .principle-icon::after {
    transform: scale(1.1);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
    }

/* 移除复杂的伪元素和动画 */

/* 移除复杂动画以优化性能 */

.principle-icon i {
    font-size: 1.8rem;
    color: #fff;
}



.principle-text {
    flex: 1;
    position: relative;
    z-index: 2;
}

.principle-text h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #fff;
    font-weight: 600;
    transition: color 0.3s ease;
}

.principle-item:hover .principle-text h3 {
    color: #e0e0e0;
}

.principle-text p {
    font-size: 1rem;
    color: #aaa;
    line-height: 1.6;
    transition: color 0.3s ease;
}

.principle-item:hover .principle-text p {
    color: #ccc;
}

/* 步骤数字样式 */
.step-number {
    color: #666;
    font-weight: 400;
    font-size: 0.9em;
    margin-right: 8px;
    transition: color 0.3s ease;
}

.principle-item:hover .step-number {
    color: #999;
}

/* 技术统计样式 */
.tech-stats {
    margin-top: 15px;
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.stat-item {
    background: #2a2a2a;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    color: #ccc;
    border: 1px solid #444;
    transition: all 0.3s ease;
}

.stat-item strong {
    color: #fff;
    font-weight: 600;
}

.principle-item:hover .stat-item {
    background: #333;
    border-color: #555;
}

/* 用户反馈部分 */
.testimonials {
    padding: 100px 0;
    background-color: var(--light-black);
}

.testimonials-slider {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
}

.testimonial-item {
    flex: 0 0 calc(50% - 30px);
    max-width: 500px;
}

.testimonial-content {
    background: var(--dark-gray);
    padding: 30px;
    border-radius: 10px;
    position: relative;
    margin-bottom: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5),
                0 0 20px rgba(128, 128, 128, 0.1);
    border: 1px solid rgba(128, 128, 128, 0.2);
}

.testimonial-content:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6),
                0 0 30px rgba(128, 128, 128, 0.2);
    transform: translateY(-3px);
}

.testimonial-content::before {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 30px;
    width: 0;
    height: 0;
    border-left: 15px solid transparent;
    border-right: 15px solid transparent;
    border-top: 15px solid var(--dark-gray);
}

.testimonial-content p {
    font-size: 1.1rem;
    color: var(--gray);
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.testimonial-author h4 {
    font-size: 1.1rem;
    color: var(--white);
}

.rating i {
    color: var(--accent);
    font-size: 1.1rem;
}

/* CTA部分 */
.cta-section {
    padding: 100px 0;
    background-color: var(--black);
    position: relative;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(128, 128, 128, 0.05) 0%, rgba(0, 0, 0, 0) 70%);
}

.cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--white);
}

.cta-content p {
    font-size: 1.3rem;
    color: var(--gray);
    margin-bottom: 40px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

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

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

/* 响应式样式 - 平板 */
@media screen and (max-width: 992px) {
    .container {
        width: 90%;
        padding: 0 15px;
    }
    
    .about-hero {
        padding: 100px 0 60px;
    }
    
    .about-hero-content h1 {
        font-size: 2.8rem;
    }
    
    .about-hero-content p {
        font-size: 1.3rem;
        margin-bottom: 30px;
    }
    
    .origin-text, .origin-image {
        flex: 0 0 100%;
    }
    
    .origin-image {
        margin-top: 40px;
    }
    
    .testimonial-item {
        flex: 0 0 100%;
        margin-bottom: 30px;
    }
    
    .principles-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
}

/* 移动端样式 */
@media screen and (max-width: 768px) {
    .container {
        width: 95%;
        padding: 0 10px;
    }
    
    .about-hero {
        padding: 80px 0 50px;
        text-align: center;
    }
    
    .about-hero-content h1 {
        font-size: 2.2rem;
        line-height: 1.3;
        margin-bottom: 20px;
    }
    
    .about-hero-content p {
        font-size: 1.1rem;
        line-height: 1.6;
        margin-bottom: 25px;
    }
    
    .btn {
        padding: 12px 30px;
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
        margin-bottom: 30px;
    }
    
    .about-content, .origin-content, .story-content {
        padding: 50px 0;
    }
    
    .about-text p, .origin-text p, .story-text p {
        font-size: 1rem;
        line-height: 1.7;
        margin-bottom: 20px;
        text-align: left;
    }
    
    .principles-content {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 30px;
    }
    
    .principles-content::before,
    .principles-content::after {
        display: none;
    }
    
    .principle-item {
        flex-direction: column;
        text-align: center;
        padding: 25px 20px;
        min-height: auto;
        margin-bottom: 20px;
    }
    
    .principle-icon {
        margin-right: 0;
        margin-bottom: 20px;
        flex: 0 0 60px;
        height: 60px;
        align-self: center;
    }
    
    .principle-icon::after {
        top: -6px;
        right: -6px;
        width: 20px;
        height: 20px;
        font-size: 11px;
        border-width: 1px;
    }
    
    .principle-text h3 {
        font-size: 1.3rem;
        margin-bottom: 12px;
    }
    
    .principle-text p {
        font-size: 0.95rem;
    }
    
    .tech-stats {
        margin-top: 12px;
        gap: 10px;
    }
    
    .stat-item {
        font-size: 0.8rem;
        padding: 6px 10px;
    }
    
    /* 移动端简化动画 */
    .principle-item:nth-child(n) {
        animation: fadeInUp 0.4s ease-out both;
    }
    
    .principle-item:nth-child(1) { animation-delay: 0.1s; }
    .principle-item:nth-child(2) { animation-delay: 0.15s; }
    .principle-item:nth-child(3) { animation-delay: 0.2s; }
    .principle-item:nth-child(4) { animation-delay: 0.25s; }
    
    .cta-buttons {
        flex-direction: column;
        gap: 15px;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 融合器图片样式 */
.fusion-img {
    width: 100%;
    height: 300px;
    background: url('https://ok.a2k6.com/gao88/i/2025/05/17/407lt.jpg') no-repeat center center;
    background-size: cover;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(255, 59, 141, 0.2);
}

/* 小屏幕移动端样式 */
@media screen and (max-width: 480px) {
    .container {
        width: 100%;
        padding: 0 15px;
    }
    
    .about-hero {
        padding: 70px 0 40px;
    }
    
    .about-hero-content h1 {
        font-size: 1.8rem;
    }
    
    .about-hero-content p {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.7rem;
        margin-bottom: 25px;
    }
    
    .about-content, .origin-content, .story-content {
        padding: 40px 0;
    }
    
    .principle-item {
        padding: 20px 15px;
    }
    
    .principle-icon {
        flex: 0 0 50px;
        height: 50px;
    }
    
    .btn {
        padding: 10px 25px;
        font-size: 0.9rem;
    }
    
    .fusion-img {
        height: 200px;
    }
}

/* 规格网格样式 */
.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.spec-box {
    background-color: var(--black);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.spec-box:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(255, 59, 141, 0.15);
    border-color: var(--pink);
}

.spec-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--light-accent) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 4px 12px rgba(128, 128, 128, 0.3);
}

.spec-icon i {
    font-size: 28px;
    color: var(--pink);
}

.spec-box h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--white);
}

.spec-box p {
    font-size: 0.9rem;
    color: var(--gray);
    line-height: 1.6;
}

/* 媒体查询 */
@media screen and (max-width: 768px) {
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .fusion-img {
        height: 250px;
    }
}