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

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    color: #333;
    background: url(../images/bottom-bg.png) center bottom no-repeat;
    background-size: 100% auto;
}
a {
    text-decoration: none;
}

/* 顶部Logo区域 */
.header {
    background: white;
    padding: 15px 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.logo-text {
    font-size: 24px;
    font-weight: 400;
    color: rgba(58, 63, 82, 1);
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 第一屏：Hero区域 */
.hero-section {
    padding: 50px 0 0;
    text-align: center;
    background: url(../images/top-bg.png) no-repeat;
    background-size: 100% 100%;
}

.main-title img{
    width: 875px;
    margin: 0 auto 20px;
}



.subtitle {
    font-size: 28px;
    color: rgba(68, 107, 86, 1);
    margin-bottom: 30px;
}
@keyframes scaleAnimation {
    0% {
        transform: scale(1)
    }

    50% {
        transform: scale(1.15)
    }

    to {
        transform: scale(1)
    }
}
/* 主要按钮 */
.btn-primary {
    display: inline-flex;
    margin: 0 auto;
    align-items: center;
    gap: 10px;
    width: 344px;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
   background: linear-gradient(90deg, #62EE92 0%, #02D0D0 100%);
    border: none;
    border-radius: 50px;
    color: white;
    font-size: 32px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0px 0px 10px 0px rgba(255, 255, 255, 1) inset;
box-shadow: 0px 15px 30px 0px rgba(25, 228, 137, 0.25);
    transition: all 0.3s ease;
    animation: scaleAnimation 1s infinite;
}



.btn-icon {
    width: 40px;
    height: 40px;
}

/* 工具卡片 */
.tool-card {
    max-width: 792px;
    margin: 0 auto;
}

.tool-screenshot {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

/* 第二屏：问题说明区域 */
.problem-section {
    padding: 80px 0;
    background: white;
}
.section-title img{
   width: 1000px;
   display: block;
   margin: 0 auto 20px; 
}

.section-subtitle {
    font-size: 28px;
    color: rgba(68, 107, 86, 1);
    text-align: center;
    margin-bottom: 60px;
}

/* 问题卡片网格 */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 60px 77px;
    max-width: 1200px;
    margin: 0 auto;
}

.problem-card {
    display: flex;
    flex-direction: column;
    gap: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.problem-card:hover {
    transform: translateY(-5px);
}

.card-icon {
    width: 500px;
    height: auto;
}

.card-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.card-content {
    flex: 1;
}



.card-title {
    font-size: 30px;
    font-weight: 700;
    background: linear-gradient(90deg, #01A863 0%, #008AB0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
}

/* 第三屏：CTA区域 */
.cta-section {
    padding: 50px 0 33px;
    text-align: center;
}

.cta-title {
    font-size: 36px;
    font-weight: 700;
    color: rgba(0, 0, 0, 1);
    margin-bottom: 40px;
}

.btn-download {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 18px 60px;
    background: linear-gradient(135deg, #66BB6A 0%, #43A047 100%);
    border: none;
    border-radius: 50px;
    color: white;
    font-size: 22px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(67, 160, 71, 0.4);
    transition: all 0.3s ease;
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(67, 160, 71, 0.5);
}

/* 底部版权 */
.footer {
    padding: 36px 0;
    text-align: center;
}

.footer p {
    font-size: 16px;
    color: rgba(153, 153, 153, 1);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .main-title {
        font-size: 28px;
    }

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

    .problem-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .btn-primary,
    .btn-download {
        padding: 14px 40px;
        font-size: 16px;
    }

    .cta-title {
        font-size: 22px;
    }
}