/* 关于页面容器 */
.about-container {
    width: 100%;
}

/* 卡片通用样式 */
.card {
    min-height: 100vh;
    width: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

/* Hero区域 */
.hero-card {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.hero {
    background-color: transparent;
    color: #fff;
    text-align: center;
    padding: 40px 0;
    position: relative;
    flex: 0 0 auto;
    z-index: 2;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    font-weight: 100;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--text-lighter);
}

.hero-links {
    margin-top: 20px;
}

.hero-links a {
    margin: 0 10px;
    font-size: 0.9rem;
}

/* 价值观卡片 */
.value-card {
    background-color: var(--bg-dark);
    color: #fff;
}

.value-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 120px 40px;
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.subtitle {
    font-size: 1rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    font-weight: 400;
    letter-spacing: 0.1em;
}

.value-content h2 {
    font-size: 2.8rem;
    font-weight: 200;
    margin-bottom: 20px;
}

.value-content .headline {
    font-size: 1.8rem;
    color: var(--text-lighter);
    margin-bottom: 40px;
    font-weight: 200;
}

.value-content .detail {
    max-width: 600px;
}

.value-content .detail p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-lighter);
    font-weight: 300;
}

/* 合作伙伴区域 */
.partner-card {
    background: linear-gradient(135deg, rgba(38, 72, 118, 0.95) 0%, rgba(20, 38, 62, 0.98) 100%);
    overflow: hidden;
}

.partner-content {
    max-width: 100%;
    margin: 0 auto;
    padding: 120px 0;
    position: relative;
    z-index: 2;
    text-align: center;
}

.partner-content h2 {
    font-size: 2.5rem;
    font-weight: 200;
    color: #fff;
    margin-bottom: 60px;
    padding: 0 40px;
}

.partners-container {
    position: relative;
    width: 100%;
    overflow: hidden;
}

.partners-row {
    display: flex;
    margin: 2rem 0;
    gap: 0;
    position: relative;
}

.partners-row.reverse .partners-track {
    animation-direction: reverse;
}

.partners-row.paused .partners-track {
    animation-play-state: paused;
}

.partners-track {
    display: flex;
    gap: 40px;
    animation: scroll 50s linear infinite;
    will-change: transform;
}

.partner-item {
    flex: 0 0 auto;
    width: 180px;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    padding: 20px;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    z-index: 3;
}

.partner-item:hover {
    transform: translateY(-5px) scale(1.05);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.partner-item img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    filter: grayscale(100%) brightness(2);
    transition: all 0.3s ease;
}

.partner-item:hover img {
    filter: grayscale(0%) brightness(1);
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-100%);
    }
}

/* 背景设计 */
.arc-design {
    height: 900px;
    width: 100%;
    position: relative;
    background: linear-gradient(180deg, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0) 100%), url('../img/hero.jpg');
    background-size: cover;
    background-position: center;
    flex: 1 1 auto;
}

/* 各个卡片的背景样式 */
.hero-card .arc-design {
    height: 900px;
    width: 100%;
    position: relative;
    background: linear-gradient(180deg, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0) 100%), url('../img/hero.jpg');
    background-size: cover;
    background-position: center;
    flex: 1 1 auto;
}

.innovation {
    background: linear-gradient(135deg, rgba(41, 78, 152, 0.95) 0%, rgba(23, 42, 82, 0.98) 100%);
}

.innovation .arc-design {
    height: 900px;
    width: 100%;
    position: relative;
    background: linear-gradient(180deg, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0) 100%), url('../img/innovation.jpg');
    background-size: cover;
    background-position: center;
    flex: 1 1 auto;
}

.user {
    background: linear-gradient(135deg, rgba(52, 95, 128, 0.95) 0%, rgba(28, 48, 65, 0.98) 100%);
}

.user .arc-design {
    height: 900px;
    width: 100%;
    position: relative;
    background: linear-gradient(180deg, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0) 100%), url('../img/user.jpg');
    background-size: cover;
    background-position: center;
    flex: 1 1 auto;
}

.open {
    background: linear-gradient(135deg, rgba(45, 85, 140, 0.95) 0%, rgba(25, 45, 75, 0.98) 100%);
}

.open .arc-design {
    height: 900px;
    width: 100%;
    position: relative;
    background: linear-gradient(180deg, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0) 100%), url('../img/open.jpg');
    background-size: cover;
    background-position: center;
    flex: 1 1 auto;
}

.partner-card .arc-design {
    height: 900px;
    width: 100%;
    position: relative;
    background: linear-gradient(180deg, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0) 100%), url('../img/partners.jpg');
    background-size: cover;
    background-position: center;
    flex: 1 1 auto;
}

/* 为卡片添加科技感装饰 */
.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(45deg, transparent 48%, rgba(255,255,255,0.03) 50%, transparent 52%),
        linear-gradient(-45deg, transparent 48%, rgba(255,255,255,0.03) 50%, transparent 52%);
    background-size: 60px 60px;
    z-index: 1;
    pointer-events: none;
}

.value-content, .partner-content {
    position: relative;
    z-index: 2;
}

/* 添加微光效果 */
.card::after {
    content: '';
    position: absolute;
    top: 0;
    left: -150%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.05),
        transparent
    );
    transform: skewX(-25deg);
    animation: shimmer 8s infinite;
}

@keyframes shimmer {
    0% { left: -150%; }
    50% { left: 150%; }
    100% { left: 150%; }
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .value-content {
        padding: 100px 40px;
    }

    .value-content h2 {
        font-size: 2.4rem;
    }

    .value-content .headline {
        font-size: 1.6rem;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }

    .value-content {
        padding: 80px 20px;
    }

    .value-content h2 {
        font-size: 2rem;
    }

    .value-content .headline {
        font-size: 1.4rem;
    }

    .value-content .detail p {
        font-size: 1rem;
    }

    .partner-content {
        padding: 80px 0;
    }

    .partner-content h2 {
        font-size: 2rem;
        margin-bottom: 40px;
    }

    .partner-item {
        width: 140px;
        height: 70px;
        padding: 15px;
    }

    .partners-track {
        gap: 20px;
    }
}

/* 动画效果 */
.card {
    opacity: 0;
    transform: translateY(20px);
    transition: all 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.card.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 链接通用样式 */
.link-in-card {
    color: var(--primary-color);
}