/* Instagram自媒体营销页面基础样式 */

/* 重置样式 */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--instagram-font-primary);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--instagram-black);
    background-color: var(--instagram-white);
    overflow-x: hidden;
}

a {
    color: var(--instagram-purple);
    text-decoration: none;
    transition: var(--instagram-transition);
}

a:hover {
    color: var(--instagram-purple-light);
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* Instagram容器布局 */
.instagram-wrapper {
    width: 100%;
    overflow: hidden;
    position: relative;
}

.instagram-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--instagram-space-md);
}

.instagram-section {
    padding: var(--instagram-space-xl) 0;
    position: relative;
}

/* 文本样式 */
.instagram-title {
    font-family: var(--instagram-font-secondary);
    font-weight: 700;
    margin-bottom: var(--instagram-space-md);
    color: var(--instagram-black);
}

.instagram-title-gradient {
    background: var(--instagram-gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.instagram-subtitle {
    font-family: var(--instagram-font-secondary);
    font-weight: 500;
    margin-bottom: var(--instagram-space-sm);
    color: var(--instagram-gray-dark);
}

.instagram-text {
    margin-bottom: var(--instagram-space-md);
    color: var(--instagram-gray);
}

.instagram-text-large {
    font-size: 1.125rem;
    line-height: 1.7;
}

.instagram-text-bold {
    font-weight: 600;
    color: var(--instagram-black);
}

/* 按钮样式 */
.instagram-btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: var(--instagram-radius-full);
    cursor: pointer;
    transition: var(--instagram-transition);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
}

.instagram-btn-primary {
    background: var(--instagram-gradient-primary);
    color: var(--instagram-white);
    box-shadow: var(--instagram-shadow-md);
}

.instagram-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--instagram-shadow-lg);
    color: var(--instagram-white);
}

.instagram-btn-secondary {
    background: transparent;
    color: var(--instagram-purple);
    border: 2px solid var(--instagram-purple);
}

.instagram-btn-secondary:hover {
    background: var(--instagram-purple);
    color: var(--instagram-white);
    transform: translateY(-3px);
}

/* 卡片样式 */
.instagram-card {
    background-color: var(--instagram-white);
    border-radius: var(--instagram-radius-md);
    box-shadow: var(--instagram-shadow-md);
    padding: var(--instagram-space-md);
    transition: var(--instagram-transition);
    height: 100%;
}

.instagram-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--instagram-shadow-lg);
}

.instagram-card-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--instagram-gradient-primary);
    color: var(--instagram-white);
    border-radius: var(--instagram-radius-full);
    margin-bottom: var(--instagram-space-sm);
    font-size: 1.5rem;
}

/* 图片样式 */
.instagram-img-container {
    position: relative;
    overflow: hidden;
    border-radius: var(--instagram-radius-md);
}

.instagram-img-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0,0,0,0), rgba(0,0,0,0.7));
    opacity: 0;
    transition: var(--instagram-transition);
}

.instagram-img-container:hover .instagram-img-overlay {
    opacity: 1;
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.instagram-animate-fade-in-up {
    animation: fadeInUp 0.8s ease forwards;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

.instagram-animate-pulse {
    animation: pulse 2s infinite;
}

/* 响应式调整 */
@media (max-width: 992px) {
    html {
        font-size: 15px;
    }
    
    .instagram-section {
        padding: var(--instagram-space-lg) 0;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .instagram-card {
        margin-bottom: var(--instagram-space-md);
    }
}

@media (max-width: 576px) {
    .instagram-container {
        padding: 0 var(--instagram-space-sm);
    }
    
    .instagram-btn {
        padding: 0.7rem 1.5rem;
        font-size: 0.8rem;
    }
}