/* 关于我们页面样式 */

.hero-about {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 20px 80px;
    text-align: center;
    position: relative;
    z-index: 10;
}

/* 联盟简介区域 */
.intro-section {
    padding: 100px 20px;
    position: relative;
    z-index: 10;
}

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

.intro-card {
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.4) 0%, rgba(59, 130, 246, 0.25) 100%);
    backdrop-filter: blur(20px);
    border: 3px solid rgba(96, 165, 250, 0.8);
    border-radius: 18px;
    padding: 40px;
    text-align: center;
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
}

.intro-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, transparent, #60a5fa, #93c5fd, #60a5fa, transparent);
    animation: shimmer 2.5s ease-in-out infinite;
}

.intro-icon {
    font-size: 64px;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 30px rgba(96, 165, 250, 0.9));
}

.intro-card h3 {
    font-size: 32px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 16px;
    text-shadow: 0 2px 15px rgba(96, 165, 250, 0.5);
}

.intro-card > p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
}

.intro-text-block {
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.3) 0%, rgba(59, 130, 246, 0.2) 100%);
    backdrop-filter: blur(20px);
    border: 2px solid rgba(96, 165, 250, 0.5);
    border-radius: 16px;
    padding: 32px 36px;
    margin-bottom: 30px;
    transition: all 0.3s;
}

.intro-text-block:hover {
    border-color: rgba(96, 165, 250, 0.8);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.4) 0%, rgba(96, 165, 250, 0.3) 100%);
    box-shadow: 0 8px 24px rgba(96, 165, 250, 0.4);
}

.intro-text-block.highlight {
    border: 3px solid rgba(96, 165, 250, 0.8);
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.4) 0%, rgba(59, 130, 246, 0.3) 100%);
}

.intro-text-block h4 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 20px;
    position: relative;
    padding-left: 20px;
}

.intro-text-block h4::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 24px;
    background: linear-gradient(180deg, var(--color-accent) 0%, #93c5fd 100%);
    border-radius: 3px;
}

.intro-text-block p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.8;
    margin-bottom: 16px;
    text-align: justify;
}

.intro-text-block p:last-child {
    margin-bottom: 0;
}

.emphasis {
    font-size: 17px;
    font-weight: 600;
    color: var(--color-accent);
    background: rgba(96, 165, 250, 0.15);
    padding: 16px 20px;
    border-radius: 12px;
    border-left: 4px solid var(--color-accent);
}

.intro-list {
    list-style: none;
    padding: 0;
    margin: 20px 0 0 0;
}

.intro-list li {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.8;
    margin-bottom: 12px;
    padding-left: 28px;
    position: relative;
}

.intro-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
    font-size: 18px;
}

.intro-list li strong {
    color: var(--color-accent);
    font-weight: 600;
}

.intro-values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.value-card {
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.3) 0%, rgba(59, 130, 246, 0.2) 100%);
    backdrop-filter: blur(20px);
    border: 2px solid rgba(96, 165, 250, 0.5);
    border-radius: 16px;
    padding: 28px 24px;
    text-align: center;
    transition: all 0.3s;
}

.value-card:hover {
    transform: translateY(-4px);
    border-color: rgba(96, 165, 250, 0.8);
    box-shadow: 0 8px 24px rgba(96, 165, 250, 0.4);
}

.value-icon {
    font-size: 48px;
    margin-bottom: 16px;
    filter: drop-shadow(0 0 20px rgba(96, 165, 250, 0.7));
}

.value-card h5 {
    font-size: 20px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 12px;
}

.value-card p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.6;
}

.direction-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.direction-item {
    background: rgba(96, 165, 250, 0.1);
    border: 2px solid rgba(96, 165, 250, 0.4);
    border-radius: 12px;
    padding: 24px 20px;
    position: relative;
    transition: all 0.3s;
}

.direction-item:hover {
    border-color: rgba(96, 165, 250, 0.7);
    background: rgba(96, 165, 250, 0.2);
    transform: translateY(-4px);
}

.direction-number {
    position: absolute;
    top: 16px;
    right: 16px;
    font-size: 32px;
    font-weight: 900;
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.3) 0%, rgba(147, 197, 253, 0.15) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.direction-item h5 {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 10px;
}

.direction-item p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.6;
    margin: 0;
}

.intro-cta-block {
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.4) 0%, rgba(59, 130, 246, 0.3) 100%);
    backdrop-filter: blur(20px);
    border: 3px sola(96, 165, 250, 0.8);
    border-radius: 18px;
    padding: 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.intro-cta-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, transparent, #60a5fa, #93c5fd, #60a5fa, transparent);
    animation: shimmer 2.5s ease-in-out infinite;
}

.cta-text {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
    margin-bottom: 16px;
}

.cta-slogan {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 32px;
    text-shadow: 0 2px 15px rgba(96, 165, 250, 0.5);
}

.btn-join-now {
    padding: 16px 64px;
    background: linear-gradient(135deg, var(--color-accent) 0%, #93c5fd 100%);
    color: white;
    border: none;
    border-radius: 32px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 6px 24px rgba(96, 165, 250, 0.5);
}

.btn-join-now:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 12px 40px rgba(96, 165, 250, 0.8);
}

/* 参与机构区域 */
.members-section {
    padding: 100px 20px;
    position: relative;
    z-index: 10;
    background: rgba(10, 26, 40, 0.3);
}

.members-cloud {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 20px 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px;
}

.member-tag {
    display: inline-block;
    padding: 10px 20px;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.3) 0%, rgba(59, 130, 246, 0.2) 100%);
    backdrop-filter: blur(20px);
    border: 2px solid rgba(96, 165, 250, 0.4);
    border-radius: 24px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    transition: all 0.3s;
    cursor: pointer;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    animation: tagFloat 6s ease-in-out infinite;
}

.member-tag:nth-child(1) { animation-delay: 0s; }
.member-tag:nth-child(2) { animation-delay: 0.3s; }
.member-tag:nth-child(3) { animation-delay: 0.6s; }
.member-tag:nth-child(4) { animation-delay: 0.9s; }
.member-tag:nth-child(5) { animation-delay: 1.2s; }
.member-tag:nth-child(6) { animation-delay: 1.5s; }
.member-tag:nth-child(7) { animation-delay: 1.8s; }
.member-tag:n8) { animation-delay: 2.1s; }
.member-tag:nth-child(9) { animation-delay: 2.4s; }
.member-tag:nth-child(10) { animation-delay: 2.7s; }
.member-tag:nth-child(11) { animation-delay: 3s; }
.member-tag:nth-child(12) { animation-delay: 3.3s; }
.member-tag:nth-child(13) { animation-delay: 3.6s; }
.member-tag:nth-child(14) { animation-delay: 3.9s; }
.member-tag:nth-child(15) { animation-delay: 4.2s; }
.member-tag:nth-child(16) { animation-delay: 4.5s; }
.member-tag:nth-child(17) { animation-delay: 4.8s; }
.member-tag:nth-child(18) { animation-delay: 5.1s; }
.member-tag:nth-child(19) { animation-delay: 5.4s; }
.member-tag:nth-child(20) { animation-delay: 5.7s; }

@keyframes tagFloat {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-8px);
    }
}

.member-tag::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(96, 165, 250, 0.3), transparent);
    transition: left 0.5s;
}

.member-tag:hover {
    transform: translateY(-4px) scale(1.05);
    border-color: rgba(96, 165, 250, 0.8);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.5) 0%, rgba(96, 165, 250, 0.4) 100%);
    box-shadow: 0 8px 24px rgba(96, 165, 250, 0.5);
    color: #ffffff;
    animation: none;
}

.member-tag:hover::before {
    left: 100%;
}

/* 核心价值区域 */
.values-section {
    padding: 100px 20px;
    position: relative;
    z-index: 10;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.value-big-card {
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.4) 0%, rgba(59, 130, 246, 0.25) 100%);
    backdrop-filter: blur(20px);
    border: 3px solid rgba(96, 165, 250, 0.8);
    border-radius: 18px;
    padding: 50px 40px;
    text-align: center;
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}

.value-big-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, transparent, #60a5fa, #93c5fd, #60a5fa, transparent);
    animation: shimmer 2.5s ease-in-out infinite;
}

.value-big-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 0 80px rgba(96, 165, 250, 0.8), 0 16px 60px rgba(96, 165, 250, 0.4);
    border-color: rgba(147, 197, 253, 1);
}

.value-big-icon {
    font-size: 80px;
    margin-bottom: 24px;
    filter: drop-shadow(0 0 40px rgba(96, 165, 250, 1));
}

.value-big-card h3 {
    font-size: 36px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 16px;
    text-shadow: 0 2px 20px rgba(96, 165, 250, 0.6);
}

.value-big-desc {
    font-size: 20px;
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: 24px;
    line-height: 1.5;
}

.value-detail {
    text-align: left;
}

.value-detail p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.8;
    margin-bottom: 12px;
}

.value-detail p:last-child {
    margin-bottom: 0;
}

/* 联系我们区域 */
.contact-section {
    padding: 100px 20px 120px;
    position: relative;
    z-index: 10;
    background: rgba(10, 26, 40, 0.3);
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.4) 0%, rgba(59, 130, 246, 0.25) 100%);
    backdrop-filter: blur(20px);
    border: 3px solid rgba(96, 165, 250, 0.8);
    border-radius: 24px;
    padding: 60px 50px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 60px rgba(96, 165, 250, 0.3);
    position: relative;
    overflow: hidden;
}

.contact-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, transparent, #60a5fa, #93c5fd, #60a5fa, transparent);
    animation: shimmer 2.5s ease-in-out infinite;
}

.contact-description {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 32px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 16px;
    background: rgba(96, 165, 250, 0.1);
    border: 1px solid rgba(96, 165, 250, 0.3);
    border-radius: 12px;
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    transition: all 0.3s;
}

.contact-item:hover {
    background: rgba(96, 165, 250, 0.2);
    border-color: rgba(96, 165, 250, 0.5);
    transform: translateX(4px);
}

.contact-icon {
    font-size: 24px;
}

.btn-contact-us {
    padding: 16px 64px;
    background: linear-gradient(135deg, var(--color-accent) 0%, #93c5fd 100%);
    color: white;
    border: none;
    border-radius: 32px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 6px 24px rgba(96, 165, 250, 0.5);
}

.btn-contact-us:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 12px 40px rgba(96, 165, 250, 0.8);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .intro-values-grid,
    .direction-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .intro-values-grid,
    .direction-grid {
        grid-template-columns: 1fr;
    }
    
    .members-cloud {
        gap: 12px 16px;
        padding: 20px;
    }
    
    .member-tag {
        padding: 8px 16px;
        font-size: 12px !important;
        animation: tagFloat 4s ease-in-out infinite;
    }
    
    .intro-card,
    .intro-text-block,
    .intro-cta-block,
    .value-big-card,
    .contact-content {
        padding: 30px 24px;
    }
    
    .contact-info {
        align-items: stretch;
    }
    
    .contact-item {
        justify-content: flex-start;
    }
}