:root {
    --primary: #00878e;
    --primary-grad: linear-gradient(135deg, #00878e 0%, #00b894 100%);
    --bg-light: #f8fafb;
    --text-main: #2d3436;
    --text-sub: #636e72;
    --card-shadow: 0 10px 30px rgba(0, 135, 142, 0.08);
    --radius: 16px;
}

* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    outline: none;
}

body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
    background-color: var(--bg-light);
    color: var(--text-main);
    line-height: 1.5;
}

.app-container {
    max-width: 500px;
    margin: 0 auto;
    background: #fff;
    min-height: 100vh;
    padding-bottom: 110px;
}

/* 顶部宣传位 */
.hero-banner {
    width: 100%;
    line-height: 0;
    /* 消除底部空隙 */
}

.hero-banner img {
    width: 100%;
    height: auto;
    display: block;
}

/* 业务主信息区 - 解决重叠问题 */
.main-header {
    padding: 24px 20px 15px;
}

.main-header h1 {
    font-size: 1.6rem;
    color: var(--text-main);
    margin: 0 0 10px;
    font-weight: 700;
}

.main-header .sub-desc {
    color: var(--text-sub);
    font-size: 14px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.main-header .sub-desc::before {
    content: '';
    width: 3px;
    height: 14px;
    background: var(--primary);
    border-radius: 10px;
}

.tag-cloud {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tag-cloud span {
    background: var(--bg-light);
    color: var(--primary);
    font-size: 11px;
    padding: 4px 12px;
    border-radius: 6px;
    font-weight: 500;
    border: 1px solid rgba(0, 135, 142, 0.1);
}

/* 列表容器风格 - 高感呼吸间距 */
.section {
    padding: 20px;
}

.section-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: #eee;
    margin-left: 15px;
}

/* 轮播图卡片化 */
.gallery-scroll {
    display: flex;
    overflow-x: auto;
    gap: 15px;
    padding: 5px 0 15px;
    scrollbar-width: none;
}

.gallery-scroll::-webkit-scrollbar {
    display: none;
}

.gallery-item {
    flex: 0 0 85%;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--card-shadow);
    background: #fff;
}

.gallery-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

/* 特色卡片 */
.feature-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.card {
    background: #fff;
    padding: 20px;
    border-radius: var(--radius);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
    border: 1px solid #f1f1f1;
}

.card .icon-box {
    width: 44px;
    height: 44px;
    background: var(--primary-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 12px;
}

.card h3 {
    font-size: 1rem;
    margin: 0 0 6px;
}

.card p {
    font-size: 12px;
    color: var(--text-sub);
    margin: 0;
}

/* 悬浮底栏重塑 */
.sticky-bar {
    position: fixed;
    bottom: 25px;
    left: 15px;
    right: 15px;
    background: #fff;
    padding: 12px 15px 12px 20px;
    border-radius: 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
    z-index: 1000;
    max-width: 470px;
    margin: 0 auto;
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.sticky-info h4 {
    margin: 0;
    color: var(--primary);
    font-size: 16px;
}

.sticky-info p {
    margin: 0;
    font-size: 11px;
    color: var(--text-sub);
}

.download-btn {
    background: var(--primary-grad);
    color: #fff;
    border: none;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 14px;
    box-shadow: 0 8px 20px rgba(0, 135, 142, 0.25);
    transition: all 0.3s;
}

.download-btn:active {
    transform: scale(0.95);
    opacity: 0.9;
}

/* 自定义弹窗打磨 */
.modal-mask {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 40px;
}

.modal {
    background: #fff;
    width: 100%;
    max-width: 320px;
    border-radius: 24px;
    padding: 30px;
    text-align: center;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal-icon {
    font-size: 60px;
    margin-bottom: 20px;
    display: block;
}

.modal-h2 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.modal-p {
    color: var(--text-sub);
    font-size: 14px;
    margin-bottom: 30px;
    line-height: 1.6;
}

.modal-btn-main {
    background: var(--primary-grad);
    color: #fff;
    border: none;
    width: 100%;
    padding: 15px;
    border-radius: 16px;
    font-weight: 700;
    font-size: 16px;
    margin-bottom: 12px;
}

.modal-btn-sub {
    color: var(--text-sub);
    font-size: 14px;
    text-decoration: none;
    display: inline-block;
}