/* 糖心vlog商务合作页面样式 - hkzhenshou.com */
:root {
    --brand-primary: #ff6b9d;
    --brand-secondary: #4ecdc4;
    --brand-accent: #45b7d1;
    --brand-warm: #ffa726;
    --brand-success: #66bb6a;
    --text-primary: #2c3e50;
    --text-secondary: #ffffff;
    --text-muted: #7f8c8d;
    --bg-white: #ffffff;
    --bg-light: #faf9f8;
    --bg-gradient: linear-gradient(135deg, #ff6b9d, #4ecdc4);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.2);
    --border-radius: 20px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, #ffa8cc 0%, #84fab0 100%);
    min-height: 100vh;
}

.platform-wrapper {
    max-width: 1600px;
    margin: 0 auto;
    background: var(--bg-white);
    min-height: 100vh;
    box-shadow: 0 0 60px rgba(255, 107, 157, 0.3);
}

.main-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 1600px;
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(255, 107, 157, 0.2);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 3rem;
    max-width: 1400px;
    margin: 0 auto;
}

.logo-section h1 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
}

.logo-link {
    text-decoration: none;
    background: var(--bg-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.platform-tagline {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

.nav-list {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2.5rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.8rem 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--brand-primary);
    transform: translateY(-2px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--bg-gradient);
    transition: width 0.3s ease;
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.contact-btn {
    background: var(--bg-gradient) !important;
    color: white !important;
    padding: 0.8rem 2rem;
    border-radius: 30px;
    box-shadow: var(--shadow-md);
    font-weight: 600;
}

.main-content {
    margin-top: 90px;
}

.page-hero {
    background: var(--bg-gradient);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-subtitle {
    font-size: 1.3rem;
    opacity: 0.9;
}

.content-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 3rem;
}

/* 联系方式 */
.contact-options {
    background: var(--bg-white);
    padding: 5rem 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.contact-card {
    background: var(--bg-light);
    padding: 2.5rem;
    border-radius: 25px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 3px solid transparent;
}

.contact-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--brand-primary);
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--brand-primary);
}

.contact-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.contact-info {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--brand-primary);
    margin-bottom: 1rem;
}

.contact-desc {
    color: var(--text-muted);
    line-height: 1.5;
}

/* 合作表单 */
.cooperation-form {
    background: var(--bg-light);
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.3rem;
    color: var(--text-muted);
}

.form-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
}

.form-content {
    background: var(--bg-white);
    padding: 3rem;
    border-radius: 25px;
    box-shadow: var(--shadow-lg);
}

.form-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.form-subtitle {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input, .form-group select, .form-group textarea {
    padding: 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--bg-white);
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 157, 0.1);
}

.submit-btn {
    background: var(--bg-gradient);
    color: white;
    padding: 1.2rem 2rem;
    border: none;
    border-radius: 25px;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
    margin-top: 1rem;
}

.submit-btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

/* 侧边栏 */
.contact-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.sidebar-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

.sidebar-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    text-align: center;
}

.process-steps {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.step-item {
    display: flex;
    gap: 1rem;
    align-items: center;
    padding: 1rem;
    background: var(--bg-light);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.step-item:hover {
    transform: translateX(8px);
}

.step-number {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--brand-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.step-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.2rem;
}

.step-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.quick-contacts {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.quick-contact-item {
    padding: 1rem;
    background: var(--bg-light);
    border-radius: 12px;
    text-align: center;
}

.contact-label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
    font-size: 0.9rem;
}

.contact-value {
    color: var(--brand-primary);
    font-weight: 600;
    font-size: 0.9rem;
}

/* Footer样式 */
.main-footer {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: var(--text-secondary);
    padding: 4rem 0 2rem;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 3rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 3rem;
}

.footer-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--brand-warm);
}

.footer-description {
    line-height: 1.8;
    margin-bottom: 2rem;
    color: #bdc3c7;
}

.footer-copyright {
    color: #95a5a6;
    font-size: 0.85rem;
}

.footer-menu {
    list-style: none;
}

.footer-menu li {
    margin-bottom: 0.8rem;
}

.footer-menu a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-menu a:hover {
    color: var(--brand-warm);
}

.contact-info p {
    margin-bottom: 0.8rem;
    color: #bdc3c7;
    font-size: 0.95rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .form-layout {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}