/* 商务合作页面 - iOS风格玻璃拟态 */

/* Hero区域 - 覆盖index.css的参数 
.hero-section.cooperation-hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 20px 80px;
    overflow: hidden;
    background: radial-gradient(ellipse at 50% 50%, rgba(5, 175, 181, 0.05) 0%, transparent 70%);
}

.hero-section.cooperation-hero .hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.hero-section.cooperation-hero .hero-content > div {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-section.cooperation-hero .hero-title {
    font-size: 64px;
    font-weight: 800;
    margin-bottom: 32px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.hero-section.cooperation-hero .hero-subtitle {
    font-size: 28px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.hero-section.cooperation-hero .hero-desc {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-section.cooperation-hero .hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

*/

/* Hero区域 */
.hero-section {
    position: relative;
    height: 50vh;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 20px 80px;
    overflow: hidden;
    background: radial-gradient(ellipse at 50% 50%, rgba(5, 175, 181, 0.05) 0%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.hero-content > div {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-title {
    font-size: 64px;
    font-weight: 800;
    margin-bottom: 32px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 28px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.hero-desc {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}
/* 动态背景背景球 */
.bg-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    z-index: 0;
}

.bg-blob-1 {
    width: 500px;
    height: 500px;
    background: var(--gradient-start);
    top: -100px;
    right: -100px;
    animation: float 6s ease-in-out infinite;
}

.bg-blob-2 {
    width: 400px;
    height: 400px;
    background: var(--gradient-end);
    bottom: 10%;
    left: -100px;
    animation: float 8s ease-in-out infinite reverse;
}

.bg-blob-3 {
    width: 300px;
    height: 300px;
    background: var(--accent-color);
    top: 50%;
    left: 30%;
    animation: float 10s ease-in-out infinite 2s;
}
/* 合作模式区域 */
.cooperation-section {
    padding: 100px 20px;
    position: relative;
}

.cooperation-section .section-header {
    text-align: center;
    margin-bottom: 60px;
}

.cooperation-section .section-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cooperation-section .section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

.cooperation-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto 80px;
}

.cooperation-card {
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(40px) saturate(200%);
    -webkit-backdrop-filter: blur(40px) saturate(200%);
    border: 2px solid rgba(255, 255, 255, 0.6);
    border-radius: 28px;
    padding: 48px 40px;
    position: relative;
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow:
        0 8px 40px rgba(0, 0, 0, 0.08),
        0 2px 8px rgba(0, 0, 0, 0.04),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.cooperation-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.9), transparent);
}

.cooperation-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.12),
        0 8px 20px rgba(0, 0, 0, 0.08);
}

.cooperation-card.featured {
    border-color: var(--primary-light);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(206, 239, 240, 0.3) 100%);
}

.cooperation-card.featured:hover {
    border-color: var(--primary-color);
}

.popular-badge {
    position: absolute;
    top: 24px;
    right: 24px;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    box-shadow:
        0 4px 16px rgba(5, 175, 181, 0.35),
        0 1px 4px rgba(0, 0, 0, 0.1);
}

.card-header {
    text-align: center;
    margin-bottom: 32px;
    position: relative;
}

.card-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 36px;
    color: white;
    box-shadow:
        0 8px 24px rgba(5, 175, 181, 0.35),
        0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.cooperation-card:hover .card-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow:
        0 12px 32px rgba(5, 175, 181, 0.45),
        0 4px 12px rgba(0, 0, 0, 0.15);
}

.card-badge {
    display: inline-block;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 16px;
}

.card-badge.highlight {
    background: rgba(5, 175, 181, 0.12);
    color: var(--primary-color);
}

.card-title {
    font-size: 32px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
}

.card-body {
    margin-bottom: 32px;
}

.info-item {
    padding: 16px 0;
    border-bottom: 1px solid rgba(200, 200, 200, 0.2);
    transition: all 0.3s ease;
}

.info-item:last-child {
    border-bottom: none;
}

.info-item:hover {
    background: rgba(5, 175, 181, 0.04);
    margin: 0 -16px;
    padding: 16px;
    border-radius: 12px;
}

.info-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    font-weight: 500;
}

.info-value {
    font-size: 15px;
    color: var(--text-main);
    line-height: 1.6;
    font-weight: 500;
}

.info-value.free {
    color: #10b981;
    font-size: 18px;
    font-weight: 600;
}

.info-value.price {
    color: var(--primary-color);
    font-size: 20px;
    font-weight: 700;
}

.card-footer {
    text-align: center;
}

/* 合作优势 */
.advantages-section {
    background: rgba(255, 255, 255, 0.65);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 28px;
    padding: 48px;
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.06),
        0 2px 8px rgba(0, 0, 0, 0.04);
}

.advantages-title {
    font-size: 32px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 40px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 28px;
}

.advantage-item {
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 20px;
    padding: 32px 28px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow:
        0 4px 20px rgba(0, 0, 0, 0.06),
        0 1px 2px rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}

.advantage-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
}

.advantage-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow:
        0 12px 40px rgba(0, 0, 0, 0.1),
        0 4px 12px rgba(0, 0, 0, 0.06);
    border-color: var(--primary-light);
}

.advantage-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
    color: white;
    box-shadow:
        0 4px 16px rgba(5, 175, 181, 0.3),
        0 1px 4px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.advantage-item:hover .advantage-icon {
    transform: scale(1.15) rotate(-5deg);
    box-shadow:
        0 8px 24px rgba(5, 175, 181, 0.4),
        0 2px 8px rgba(0, 0, 0, 0.15);
}

.advantage-item h4 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 10px;
}

.advantage-item p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* 合作流程 */
.process-section {
    padding: 100px 20px;
    background: var(--bg-secondary);
    position: relative;
}

.process-section .section-header {
    text-align: center;
    margin-bottom: 60px;
}

.process-section .section-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.process-section .section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

.process-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.process-step {
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 24px;
    padding: 36px 32px;
    text-align: center;
    width: 200px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow:
        0 4px 20px rgba(0, 0, 0, 0.06),
        0 1px 2px rgba(0, 0, 0, 0.04);
    position: relative;
}

.process-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
}

.process-step:hover {
    transform: translateY(-8px);
    box-shadow:
        0 12px 40px rgba(0, 0, 0, 0.1),
        0 4px 12px rgba(0, 0, 0, 0.06);
}

.step-number {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 16px;
    opacity: 0.8;
}

.step-icon {
    font-size: 48px;
    margin-bottom: 16px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.process-step:hover .step-icon {
    transform: scale(1.15) rotate(5deg);
}

.process-step h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 8px;
}

.process-step p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
}

.process-arrow {
    font-size: 32px;
    color: var(--primary-light);
    font-weight: bold;
    opacity: 0.6;
}

/* 咨询表单区域 */
.contact-section {
    padding: 100px 20px;
}

.contact-card {
    max-width: 1100px;
    margin: 0 auto;
    border-radius: 32px;
    padding: 60px;
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.1),
        0 8px 20px rgba(0, 0, 0, 0.06);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
}

.contact-info h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.contact-desc {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.65);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 16px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    background: rgba(255, 255, 255, 0.85);
    transform: translateX(4px);
    border-color: var(--primary-light);
}

.contact-icon {
    font-size: 28px;
    flex-shrink: 0;
}

.contact-detail {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.contact-label {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

.contact-value,
.contact-value a {
    font-size: 15px;
    color: var(--text-main);
    font-weight: 500;
    text-decoration: none;
}

.contact-value a:hover {
    color: var(--primary-color);
}

/* 表单样式 */
.contact-form form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 2px solid rgba(200, 200, 200, 0.3);
    border-radius: 14px;
    padding: 14px 18px;
    font-size: 15px;
    color: var(--text-main);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    outline: none;
    width: 100%;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.9);
    box-shadow:
        0 0 0 4px rgba(5, 175, 181, 0.12),
        0 4px 20px rgba(5, 175, 181, 0.1);
    animation: focusExpand 0.3s ease-out;
}

.btn-block {
    width: 100%;
}

/* CTA区域 */
.cta-section {
    padding: 120px 20px;
    position: relative;
}

.cta-section .cta-card {
    max-width: 900px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 32px;
    padding: 60px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.cta-section .cta-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cta-section .cta-desc {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.cta-section .hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* FAQ区域 */
.faq-section {
    padding: 100px 20px;
    background: var(--bg-secondary);
}

.faq-section .section-header {
    text-align: center;
    margin-bottom: 60px;
}

.faq-section .section-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.faq-section .section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 18px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow:
        0 4px 16px rgba(0, 0, 0, 0.04),
        0 1px 2px rgba(0, 0, 0, 0.02);
}

.faq-item:hover {
    box-shadow:
        0 8px 24px rgba(0, 0, 0, 0.08),
        0 2px 4px rgba(0, 0, 0, 0.04);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 28px;
    cursor: pointer;
    user-select: none;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: rgba(5, 175, 181, 0.04);
}

.faq-question span {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    flex: 1;
}

.faq-icon {
    font-size: 12px;
    color: var(--primary-color);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 28px 24px;
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.8;
}

/* 响应式 */
@media (max-width: 1024px) {
    .cooperation-cards {
        grid-template-columns: 1fr;
    }

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

    .process-steps {
        flex-direction: column;
        align-items: center;
    }

    .process-arrow {
        transform: rotate(90deg);
    }

    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cooperation-section .section-title,
    .process-section .section-title,
    .faq-section .section-title {
        font-size: 36px;
    }

    .cta-section .cta-title {
        font-size: 32px;
    }
}

@media (max-width: 768px) {
    .hero-section.cooperation-hero .hero-title {
        font-size: 36px;
    }

    .hero-section.cooperation-hero .hero-subtitle {
        font-size: 20px;
    }

    .hero-section.cooperation-hero .hero-desc {
        font-size: 16px;
    }

    .hero-section.cooperation-hero .hero-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
    }

    .hero-section.cooperation-hero .hero-buttons .btn {
        width: 100%;
    }

    .cooperation-section .section-title,
    .process-section .section-title,
    .faq-section .section-title {
        font-size: 28px;
    }

    .cooperation-section .section-subtitle,
    .process-section .section-subtitle,
    .faq-section .section-subtitle {
        font-size: 16px;
    }

    .cta-section .cta-title {
        font-size: 24px;
    }

    .cta-section .cta-desc {
        font-size: 15px;
    }

    .cta-section .hero-buttons {
        flex-direction: column;
    }

    .cooperation-card {
        padding: 36px 28px;
    }

    .card-icon {
        width: 64px;
        height: 64px;
        font-size: 28px;
    }

    .card-title {
        font-size: 26px;
    }

    .advantages-section {
        padding: 32px 24px;
    }

    .advantages-title {
        font-size: 24px;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .process-step {
        width: 100%;
        max-width: 300px;
        padding: 32px 24px;
    }

    .contact-card {
        padding: 36px 24px;
    }

    .contact-info h2 {
        font-size: 28px;
    }

    .faq-question {
        padding: 20px;
    }

    .faq-question span {
        font-size: 14px;
    }

    .faq-answer p {
        padding: 0 20px 20px;
        font-size: 14px;
    }
}