* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}
button {
    color: inherit;
    font-family: inherit;
}
button:focus {
    outline: none;
}
a {
    color: inherit;
}

html,
body {
    background-color: #f4f4f3;
    min-height: 100%;
    color: #2b2927;
	/* ↓在这里粘贴禁止选中CSS */
    user-select: none;
    -webkit-user-select: none;
    /* ↑粘贴结束 */
}
html {
    background-color: #f4f4f3;
}
body {
    margin: 0;
    padding: 0;
    line-height: 1.6;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* =========Header 毛玻璃兼容降级========= */
header {
    background-color: #f4f4f3;
    border-bottom: 1px solid #e5e5e3;
    height: 64px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}
@supports ((-webkit-backdrop-filter: blur(8px)) or (backdrop-filter: blur(8px))) {
    header {
        background-color: rgba(244, 244, 243, 0.8);
        -webkit-backdrop-filter: blur(8px);
        backdrop-filter: blur(8px);
    }
}

.header-inner {
    max-width: 1200px;
    width: 100%;
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap:12px;
}
.logo-wrap {
    display: flex;
    align-items: center;
    gap:12px;
    font-weight:700;
    font-size:16px;
    border:none;
    background:transparent;
    cursor:pointer;
    color:#2b2927 !important;
}
.logo-icon {
    width:32px;
    height:32px;
    border-radius:12px;
    background:#2b2927;
    color:#fff;
    display:flex;
    align-items:center;
    justify-content:center;
}
.desktop-nav {
    display: flex;
    gap:32px;
}
.desktop-nav a {
    text-decoration: none;
    color:#656360;
    font-weight:600;
}
.desktop-nav a:hover {
    color:#2b2927;
}
.header-right {
    display:flex;
    align-items:center;
    gap:16px;
}
.btn {
    padding:8px 20px;
    border-radius:999px;
    border:none;
    cursor:pointer;
    font-weight:600;
    font-size:15px;
    flex-shrink:0;
}
.btn-dark{
    background:#2b2927;
    color:#fff;
}
.btn-dark:hover{
    background:#403e3b;
}
.btn-white{
    background:#fff;
    color:#2b2927;
    border:1px solid #ddd;
}
.hamburger-btn {
    display:none;
    border:none;
    background:transparent;
    padding:8px;
    border-radius:12px;
    cursor:pointer;
}
.hamburger-btn:hover {
    background-color: rgba(0,0,0,0.08);
}
.icon-menu {
    width:20px;
    height:20px;
}
.mobile-menu {
    position:fixed;
    top:64px;
    left:0;
    right:0;
    background-color:#f4f4f3;
    border-bottom:1px solid #e5e5e3;
    padding:0 24px;
    max-height:0;
    overflow:hidden;
    transition: max-height 0.3s ease;
    z-index:99;
}
.mobile-menu.open {
    max-height: 240px;
}
.mobile-menu a {
    display:block;
    padding:14px 0;
    font-weight:600;
    color:#2b2927;
    text-decoration:none;
    border-bottom:1px solid #eee;
}

main{
    padding-top:64px;
}

.hero{
    text-align:center;
    padding:64px 20px;
}
.tag-row{
    display:flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    background:#fff;
    border:1px solid #e5e5e3;
    border-radius:999px;
    padding:6px 16px;
    font-size:14px;
    margin-bottom:20px;
    display:inline-flex;
    flex-wrap:wrap;
}
.dot{
    width:6px;
    height:6px;
    background:#ccc;
    border-radius:50%;
}
.hero h1{
    font-size:40px;
    margin-bottom:16px;
}
.hero p.desc{
    max-width:640px;
    margin:0 auto 32px;
    color:#656360;
    font-size:17px;
}
.btn-group{
    display:flex;
    gap:16px;
    justify-content:center;
    flex-wrap:wrap;
}
.feature-row{
    max-width:900px;
    margin:40px auto 0;
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:12px;
    padding-top:30px;
    border-top:1px solid #e5e5e3;
}
.feature-item{
    text-align:center;
    word-wrap:break-word;
}
.feature-item h4{
    font-size:16px;
    margin-bottom:4px;
}
.feature-item span{
    font-size:13px;
    color:#666;
}
.preview-section{
    background:#ececeb;
    padding:60px 20px;
}
.preview-head{
    max-width:1200px;
    margin:0 auto 30px;
    display:flex;
    justify-content:space-between;
    align-items:flex-end;
    flex-wrap:wrap;
    gap:16px;
}
.preview-title small{
    text-transform:uppercase;
    color:#777;
    font-weight:bold;
    letter-spacing:1px;
}
.preview-title h2{
    font-size:24px;
    margin-top:4px;
}
.carousel-buttons{
    display:flex;
    gap:6px;
    background:#ddd;
    padding:4px;
    border-radius:12px;
    flex-wrap:wrap;
    max-width:100%;
}
.carousel-buttons button{
    border:none;
    padding:6px 12px;
    border-radius:8px;
    cursor:pointer;
}
.carousel-buttons button.active{
    background:#222;
    color:#fff;
}
.carousel-wrap{
    max-width:1100px;
    margin:0 auto;
    border-radius:24px;
    overflow:hidden;
    position:relative;
    aspect-ratio:16/10;
    background:#fff;
    border:1px solid #ddd;
}
.carousel-item{
    position:absolute;
    inset:0;
    opacity:0;
    transition:opacity 0.5s ease-in-out;
}
.carousel-item.active{
    opacity:1;
    z-index:2;
}
.carousel-item img{
    width:100%;
    height:100%;
    object-fit:cover;
}
.pricing-section{
    padding:60px 20px;
}
.section-heading{
    text-align:center;
    margin-bottom:40px;
}
.section-heading small{
    text-transform:uppercase;
    color:#777;
    font-weight:bold;
}
.section-heading h2{
    font-size:24px;
    margin-top:4px;
}
.card-wrap{
    max-width:1200px;
    margin:0 auto;
    display:grid;
    grid-template-columns:repeat(auto-fit, minmax(300px,1fr));
    gap:24px;
}
.card{
    background:#fff;
    border:1px solid #e5e5e3;
    border-radius:24px;
    padding:32px;
    box-shadow:0 4px 12px rgba(0,0,0,0.04);
    display:flex;
    flex-direction:column;
    justify-content:space-between;
}
.card.dark{
    background:#222;
    color:#fff;
}
.card h3{
    font-size:18px;
    margin-bottom:8px;
}
.card p.sub{
    font-size:14px;
    color:#666;
    margin-bottom:16px;
}
.card.dark p.sub{
    color:#ccc;
}
.price-text{
    font-size:34px;
    font-weight:bold;
    margin:12px 0 20px;
}
.card ul{
    list-style:none;
    margin-bottom:24px;
}
.card li{
    margin-bottom:10px;
    display:flex;
    gap:8px;
    align-items:flex-start;
    font-size:14px;
}
.card .btn-block{
    width:100%;
    padding:12px;
    border-radius:12px;
    border:none;
    font-weight:bold;
    cursor:pointer;
}
.help-section{
    padding:60px 20px;
}
/* 标签徽章：在标题行中垂直居中 */
.tag-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 12px;
    line-height: 1;
    white-space: nowrap;
}

.card.dark .tag-badge {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
}

.card .tag-badge {
    background: #f1f1f0;
    color: #2b2927;
}

/* =========Footer【重点修复背景色】和全站统一#f4f4f3========= */
footer{
    border-top:1px solid #e5e5e3;
    padding:40px 20px 24px;
    background:#f4f4f3;
}
.footer-inner{
    max-width:1200px;
    margin:0 auto;
    display:flex;
    justify-content:space-between;
    align-items:center;
    flex-wrap:wrap;
    gap:12px;
}
.beian-wrap {
    width:100%;
    text-align:center;
    margin-top:14px;
    font-size:13px;
    background: transparent !important;
}
.beian-wrap a {
    color:#707070;
    text-decoration:none;
}
.beian-wrap a:hover {
    color:#2b2927;
    text-decoration:underline;
}

.page{
    display:none;
}
.page.active{
    display:block;
}

/* ========== 媒体查询，md=768px ========== */
@media screen and (max-width: 768px) {
    .desktop-nav {
        display: none;
    }
    .hamburger-btn {
        display: block;
    }
    .header-inner {
        padding:0 16px;
    }
    main {
        padding-top:64px;
    }
    .hero {
        padding:48px 16px;
    }
    .hero h1 {
        font-size:32px;
    }
    .hero p.desc {
        font-size:16px;
    }
    .feature-row {
        grid-template-columns:repeat(2,1fr);
        gap:20px;
    }
    .preview-head {
        flex-direction:column;
        align-items:flex-start;
    }
    .price-text {
        font-size:28px;
    }
    .card-wrap {
        grid-template-columns: 1fr;
    }
}

@media screen and (max-width:480px){
    .hero h1 {
        font-size:28px;
    }
    .feature-row {
        grid-template-columns:1fr;
    }
    .carousel-buttons button {
        padding:4px 8px;
        font-size:13px;
    }
    .preview-title h2 {
        font-size:20px;
    }
    .btn {
        padding:7px 14px;
        font-size:14px;
    }
    .hero {
        padding:40px 12px;
    }
}