/* 全局基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    background-color: #f8fafc;
    color: #1a1a1a;
    line-height: 1.7;
}

a {
    text-decoration: none;
}

ul {
    list-style: none;
}

.container {
    width: 92%;
    max-width: 1100px;
    margin: 0 auto;
}

/* 按钮基础样式 */
.btn {
    display: inline-block;
    padding: 14px 36px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 18px;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background-color: #16c759;
    color: #ffffff;
}

.btn-primary:hover {
    background-color: #14b350;
}

.btn-large {
    padding: 16px 42px;
    font-size: 20px;
}

/* 导航栏 */
.navbar {
    background-color: #ffffff;
    padding: 18px 0;
    position: sticky;
    top: 0;
    z-index: 999;
    box-shadow: 0 1px 6px rgba(0,0,0,0.05);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 44px;
}

.logo-text {
    font-size: 22px;
    font-weight: 700;
    color: #16c759;
}

/* 顶部英雄区（截图浅蓝渐变） */
.hero {
    padding: 90px 0;
    background: linear-gradient(180deg, #eef5ff 0%, #f0f7ff 100%);
    text-align: center;
}

.hero h1 {
    font-size: 44px;
    margin-bottom: 24px;
    line-height: 1.3;
}

.highlight {
    color: #16c759;
}

.hero-desc {
    font-size: 19px;
    color: #555;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* 标签徽章样式 */
.hero-badges {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.badge {
    padding: 10px 26px;
    background-color: #dcfce7;
    color: #16a34a;
    border-radius: 99px;
    font-size: 17px;
    font-weight: 500;
}

.hero-cta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.version {
    color: #777;
    font-size: 17px;
}

/* 通用区块标题 */
.section-title {
    text-align: center;
    font-size: 36px;
    margin: 70px 0 40px;
    color: #1a1a1a;
}

/* 核心优势卡片（大圆角、浅灰背景） */
.features {
    padding: 20px 0 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

.feature-card {
    padding: 40px 24px;
    background-color: #ffffff;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}

.feature-icon {
    font-size: 42px;
    color: #1a1a1a;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 28px;
    margin-bottom: 16px;
}

.feature-card p {
    font-size: 18px;
    color: #555;
    max-width: 700px;
    margin: 0 auto;
}

/* 兼容性对比表格 */
.comparison {
    padding: 20px 0 60px;
}

.table-wrapper {
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background-color: #ffffff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}

.comparison-table th,
.comparison-table td {
    padding: 18px 12px;
    text-align: center;
    border-bottom: 1px solid #f1f5f9;
    font-size: 18px;
}

.comparison-table th {
    background-color: #16c759;
    color: #ffffff;
}

.highlight-row {
    background-color: #f0fdf4;
}

.tag-best {
    color: #16a34a;
    font-weight: 600;
}

.fa-check {
    color: #16a34a;
    font-size: 20px;
}

.fa-times {
    color: #ef4444;
    font-size: 20px;
}

.fa-minus {
    color: #94a3b8;
    font-size: 20px;
}

/* 功能特性区块 */
.functionality {
    padding: 20px 0 60px;
}

.func-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 28px;
}

.func-category {
    padding: 32px 24px;
    background-color: #ffffff;
    border-radius: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}

.func-category h3 {
    font-size: 26px;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 3px solid #16c759;
}

.func-category ul li {
    margin: 14px 0;
    font-size: 18px;
    color: #444;
}

.func-category .fa-check {
    margin-right: 10px;
}

/* 适用场景 */
.scenarios {
    padding: 20px 0 60px;
}

.scenario-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

.scenario-card {
    padding: 40px 24px;
    background-color: #ffffff;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}

.scenario-icon {
    font-size: 42px;
    color: #1a1a1a;
    margin-bottom: 20px;
}

.scenario-card h3 {
    font-size: 28px;
    margin-bottom: 16px;
}

.scenario-card p {
    font-size: 18px;
    color: #555;
}

/* 技术亮点 */
.tech {
    padding: 20px 0 60px;
}

.tech-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.tech-item {
    padding: 20px 0;
    border-bottom: 1px solid #e2e8f0;
}

.tech-name {
    font-size: 24px;
    font-weight: 600;
    display: block;
    margin-bottom: 8px;
}

.tech-desc {
    font-size: 18px;
    color: #555;
}

/* 底部CTA（全屏绿色区块） */
.cta {
    padding: 80px 0;
    background-color: #16c759;
    color: #ffffff;
    text-align: center;
}

.cta h2 {
    font-size: 48px;
    margin-bottom: 24px;
}

.cta p {
    font-size: 20px;
    margin-bottom: 32px;
}

.cta .btn-primary {
    background-color: #ffffff;
    color: #16c759;
}

.cta .btn-primary:hover {
    background-color: #f0fdf4;
}

.version-info {
    margin-top: 20px;
    font-size: 17px;
    opacity: 0.9;
}

/* 页脚 */
.footer {
    padding: 30px 0;
    text-align: center;
    background-color: #1a1a1a;
    color: #cbd5e1;
    font-size: 17px;
}

/* 移动端适配（手机优先） */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 34px;
    }
    .section-title {
        font-size: 28px;
    }
    .cta h2 {
        font-size: 36px;
    }
}