/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', 'Noto Sans', sans-serif;
    background: linear-gradient(145deg, #f9fafc 0%, #ffffff 100%);
    color: #1e293b;
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 整体容器 */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

/* 头部导航 */
.site-header {
    padding: 20px 0;
    border-bottom: 1px solid rgba(0,0,0,0.03);
    background-color: rgba(255,255,255,0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 10;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 10px;
}
.logo-area h1 {
    display: flex;
    cursor: pointer;
}
.logo-icon {
    background: linear-gradient(135deg, #4285f4, #34a853, #fbbc05, #ea4335);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    box-shadow: 0 8px 16px -6px rgba(66,133,244,0.3);
}

.logo-text {
    font-weight: 600;
    font-size: 1.4rem;
    letter-spacing: -0.01em;
    background: linear-gradient(to right, #1e293b, #334155);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.main-nav {
    display: flex;
    gap: 32px;
}

.main-nav a {
    text-decoration: none;
    font-weight: 500;
    color: #334155;
    transition: color 0.2s, border-color 0.2s;
    padding-bottom: 4px;
    border-bottom: 2px solid transparent;
}

.main-nav a:hover {
    color: #1e293b;
}

.main-nav a.active {
    color: #1e293b;
    border-bottom-color: #4285f4;
}

/* 主内容区 */
main {
    flex: 1;
    padding: 40px 0 20px;
}

/* 卡片通用设计 */
.card {
    background: rgba(255,255,255,0.8);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border-radius: 32px;
    padding: 32px;
    box-shadow: 0 20px 40px -12px rgba(0,0,0,0.08), 0 4px 18px rgba(0,0,0,0.02);
    border: 1px solid rgba(255,255,255,0.7);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    box-shadow: 0 24px 48px -12px rgba(66,133,244,0.18);
    transform: translateY(-2px);
}

/* 主页英雄区 */
.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 48px;
}

.hero h2 {
    font-size: 3.2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(145deg, #1e293b, #2563eb);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    max-width: 800px;
    line-height: 1.5;
    margin-bottom: 20px;
}

.hero .subhead {
    font-size: 1.15rem;
    color: #475569;
    max-width: 640px;
    margin-bottom: 24px;
}
.download-sub {
    margin-top: 24px;
    display: flex;
    column-gap: 12px;
    font-size: 14px;
}
.download-sub span em {
    font-style: normal;
}
.index-device-desc {
    font-size: 14px;
    margin-top: 8px;
}
.index-btn_wrap{position: relative;cursor: pointer;display: inline-block;}
.index-code-box{display:flex;align-items:flex-end!important;justify-content:center!important;width:179px!important;height:197px!important;background:url(../img/code-box.png);background-size:179px 197px;position:absolute;top: 58px;left: 17%;z-index:5;display:none!important;}
.index-code-box .index-code{margin-bottom:24px;}
.index-code-box .index-code img{width:136px!important;height:136px!important}
/* 特性网格 */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin: 48px 0;
}

.feature-item {
    background: white;
    border-radius: 24px;
    padding: 24px;
    text-align: center;
    box-shadow: 0 8px 20px -8px rgba(0,0,0,0.04);
    border: 1px solid #f1f5f9;
    transition: all 0.2s;
}

.feature-item i {
    font-size: 2.4rem;
    margin-bottom: 16px;
    color: #4285f4;
}

.feature-item h3 {
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 1.3rem;
}

.feature-item p {
    color: #64748b;
    font-size: 0.95rem;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: white;
    border: 1px solid #e2e8f0;
    color: #1e293b;
    padding: 14px 36px;
    border-radius: 60px;
    font-weight: 600;
    font-size: 1.1rem;
    text-decoration: none;
    transition: background 0.2s, border-color 0.2s, box-shadow 0.2s, transform 0.1s;
    box-shadow: 0 8px 18px -10px rgba(0,0,0,0.1);
    cursor: pointer;
}

.btn-primary {
    background: #1e293b;
    color: white;
    border: none;
    box-shadow: 0 12px 24px -12px #1e293b;
}

.btn-primary:hover {
    background: #0f172a;
    box-shadow: 0 20px 28px -12px #0f172a;
    transform: scale(1.02);
}

.btn-download {
    background: #4285f4;
    color: white;
    border: none;
    padding: 16px 40px;
    font-size: 1.2rem;
    box-shadow: 0 16px 32px -14px #4285f4;
}

.btn-download:hover {
    background: #3367d6;
    box-shadow: 0 20px 36px -14px #3367d6;
}

.btn-outline {
    background: transparent;
    border: 1.5px solid #cbd5e1;
}

/* 下载卡片 (用于下载页) */
.os-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
    margin-top: 40px;
}

.os-card {
    background: white;
    border-radius: 28px;
    padding: 28px 24px;
    box-shadow: 0 15px 30px -15px rgba(0,0,0,0.1);
    border: 1px solid #f0f4f9;
    transition: 0.2s;
    display: flex;
    flex-direction: column;
}

.os-card:hover {
    border-color: #d0e0ff;
}

.os-icon {
    font-size: 2.6rem;
    margin-bottom: 20px;
    color: #1e293b;
}

.os-card h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.version-tag {
    font-size: 0.9rem;
    color: #4285f4;
    background: #e8f0fe;
    display: inline-block;
    padding: 4px 14px;
    border-radius: 40px;
    margin: 10px 0 16px;
    align-self: flex-start;
}

.btn-download-link {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 60px;
    padding: 14px 18px;
    margin: 8px 0;
    text-decoration: none;
    color: #0f172a;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background 0.2s, border-color 0.2s;
}

.btn-download-link i {
    color: #4285f4;
    font-size: 1.1rem;
}

.btn-download-link:hover {
    background: #eef2f6;
    border-color: #4285f4;
}

.small-note {
    font-size: 0.8rem;
    color: #64748b;
    margin-top: 20px;
    border-top: 1px dashed #e2e8f0;
    padding-top: 16px;
}

/* 防红提示区 */
.trust-badge {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
    background: #f1f5f9;
    border-radius: 80px;
    padding: 14px 36px;
    margin: 40px 0 10px;
    color: #334155;
    font-size: 0.95rem;
}

.trust-badge i {
    color: #34a853;
    margin-right: 6px;
}

/* 页脚 */
.site-footer {
    border-top: 1px solid #edf2f7;
    padding: 32px 0;
    background-color: rgba(255,255,255,0.6);
    backdrop-filter: blur(4px);
    font-size: 0.95rem;
    color: #475569;
}

.footer-inner {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: #334155;
    text-decoration: none;
}

.footer-links a:hover {
    text-decoration: underline;
}

.main_wrap {
    width: 1200px;
    margin: auto;
}
.part-privacy {
    padding: 16px;
    font-size: 16px;
    line-height: 32px;
}
.part-privacy p{
    font-size: 16px;
    line-height: 32px;
}
.page-404 {
    height: 100%;
    text-align: center;
}

.page-404 img {
    width: 100%;
    padding: 0 2rem;
    box-sizing: border-box;
}

.page-404 h1,.page-404 span {
    display: block;
    font-size: 18px;
    color: #333333;
    text-align: center;
    margin-top: 2rem;
}

.page-404 .desc {
    text-align: center;
    font-size: .75rem;
    margin-top: .5rem;
}

.page-404 .desc a {
    color: #3C80F4;
}

.page-404 .btn-lists {
    margin: 1.5rem 0 1rem;
    display: flex;
    justify-content: center;
}

.page-404 .btn-lists a {
    width: 78px;
    height: 33px;
    line-height: 33px;
    text-align: center;
    background: #3C80F4;
    font-size: 12px;
    color: #FFFFFF;
    margin-right: 1.5rem;
    text-decoration: unset;
}
.complainttips {font-size:14px;}

.friend-links {padding: 20px 0 0;}
.friend-links h3 { font-size: 18px; color: #5f6368; margin-bottom: 20px; border-bottom: 1px solid #dadce0; padding-bottom: 10px; }
.link-list { display: flex; flex-wrap: wrap; gap: 15px; }
.link-list a { color: #5f6368; text-decoration: none; font-size: 14px; transition: color 0.2s; }
.link-list a:hover { color: var(--primary-color); text-decoration: underline; }
#to_top {position: fixed;bottom: 150px;right: 270px;cursor: pointer;z-index: 1000;display: none;}
#to_top img {width: 65px;height: 65px;}
/* 响应式 */
@media (max-width: 640px) {
    .container {
        padding: 0 1rem;
    }
    .hero h2 {
        font-size: 2.2rem;
    }
    .header-inner {
        flex-direction: column;
        align-items: flex-start;
    }
    .main-nav {
        width: 100%;
        justify-content: space-around;
        gap: 0;
    }
    .trust-badge {
        border-radius: 30px;
        padding: 14px 20px;
        gap: 16px;
    }
    .download-sub {
        margin-top: 1.5rem;
        column-gap: .5rem;
        font-size: .875rem;
    }
    .index-device-desc {
        font-size: .875rem;
        margin-top: .5rem;
    }
    .btn-download {
        padding:.75rem 3.5rem;
    }
    .banner-btn i {
        width: 1.25rem;
        height: 1.25rem;
        background-size: 1.25rem;
    }
    .banner-btn i.ios-ico {
        background: url(../img/ios-ico.webp);
        background-size:1.25rem;
    }
    .banner-btn i.android-ico {
        background: url(../img/android-ico.webp);
        background-size:1.25rem;
    }
    .main_wrap {
        width: 100%;
        margin: 0 auto;
    }
    .part-privacy {
        margin-top: 2rem;
    }
    .part-privacy {
        padding: 1rem;
        font-size: 0.875rem;
        line-height: 1.75rem;
    }
    .part-privacy p{
        font-size: 0.875rem;
        line-height: 1.75rem;
    }
    .page-404 img {
        width:100%;
        margin-top: 12rem;
    }
    #to_top {position: fixed;bottom: 2rem;right: 1rem;cursor: pointer;z-index: 1000;display: none;}
    #to_top img {width: 2.5rem;height: 2.5rem;}
}

/* 结构化数据不可见 */
.hidden-schema {
    display: none;
}