:root{
    --bg:#f6f8fc;
    --card:#ffffff;
    --text:#111827;
    --muted:#6b7280;
    --primary:#2563eb;
    --primary-light:#eff6ff;
    --border:#e5e7eb;
    --shadow:0 10px 30px rgba(15,23,42,.06);
    --radius:22px;
}

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

html{
    scroll-behavior:smooth;
}

body{
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
    background:var(--bg);
    color:var(--text);
    line-height:1.7;
}

a{
    text-decoration:none;
    color:inherit;
}

img{
    display:block;
    max-width:100%;
}

.container{
    width:100%;
    max-width:1180px;
    margin:auto;
    padding:24px 16px 70px;
}

/* 顶部 */

.topbar{
    display:flex;
    justify-content:space-between;
    align-items:center;
    margin-bottom:26px;
    gap:16px;
    flex-wrap:wrap;
}

.logo{
    display:flex;
    align-items:center;
    gap:14px;
}

.logo-avatar{
    width:48px;
    height:48px;
    border-radius:16px;
    overflow:hidden;
    box-shadow:0 8px 20px rgba(37,99,235,.15);
}

.logo-avatar img{
    width:100%;
    height:100%;
    object-fit:cover;
}

.logo-info h1{
    font-size:22px;
    line-height:1.2;
    margin-bottom:2px;
}

.logo-info p{
    font-size:13px;
    color:var(--muted);
}

.nav-links{
    display:flex;
    gap:12px;
    flex-wrap:wrap;
}

.nav-links a{
    padding:10px 16px;
    border-radius:999px;
    background:#fff;
    border:1px solid var(--border);
    font-size:14px;
    transition:.2s;
}

.nav-links a:hover{
    color:var(--primary);
    border-color:#bfdbfe;
    background:#f8fbff;
}

/* hero */

.hero{
    position:relative;
    overflow:hidden;
    background:linear-gradient(135deg,#111827,#1e3a8a);
    border-radius:32px;
    padding:42px;
    color:#fff;
    margin-bottom:56px;
}

.hero::before{
    content:"";
    position:absolute;
    width:320px;
    height:320px;
    border-radius:50%;
    background:rgba(255,255,255,.05);
    top:-120px;
    right:-120px;
}

.hero-content{
    position:relative;
    z-index:2;
    display:grid;
    grid-template-columns:1fr 300px;
    gap:40px;
    align-items:center;
}

.hero-text h2{
    font-size:44px;
    line-height:1.2;
    margin-bottom:20px;
    font-weight:800;
}

.hero-text p{
    color:rgba(255,255,255,.82);
    max-width:700px;
    font-size:16px;
}

.hero-tags{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:26px;
}

.hero-tags span{
    padding:10px 16px;
    border-radius:999px;
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.08);
    font-size:14px;
    backdrop-filter:blur(10px);
}

/* 个人卡片 */

.profile-card{
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.08);
    border-radius:28px;
    padding:26px;
    backdrop-filter:blur(20px);
}

.profile-avatar{
    width:82px;
    height:82px;
    border-radius:50%;
    overflow:hidden;
    margin-bottom:16px;
    border:3px solid rgba(255,255,255,.12);
}

.profile-avatar img{
    width:100%;
    height:100%;
    object-fit:cover;
}

.profile-card h3{
    font-size:24px;
    margin-bottom:4px;
}

.profile-card .job{
    font-size:14px;
    color:#bfdbfe;
    margin-bottom:14px;
}

.profile-card .intro{
    font-size:14px;
    color:rgba(255,255,255,.82);
}

/* section */

section{
    margin-bottom:72px;
}

.section-title{
    margin-bottom:28px;
}

.section-title h2{
    font-size:34px;
    margin-bottom:6px;
}

.section-title p{
    color:var(--muted);
}

/* 产品 */

.tool-grid{
    display:grid;
    grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
    gap:22px;
}

.tool-card{
    position:relative;
    overflow:hidden;
    background:linear-gradient(180deg,#fff,#f8fbff);
    border:1px solid #dbeafe;
    border-radius:24px;
    padding:28px;
    transition:.25s;
    box-shadow:0 4px 16px rgba(15,23,42,.04);
}

.tool-card:hover{
    transform:translateY(-8px);
    box-shadow:0 18px 40px rgba(37,99,235,.10);
}

.tool-icon{
    width:62px;
    height:62px;
    border-radius:18px;
    display:flex;
    align-items:center;
    justify-content:center;
    background:var(--primary-light);
    font-size:30px;
    margin-bottom:18px;
}

.tool-card h3{
    font-size:20px;
    margin-bottom:10px;
}

.tool-card p{
    font-size:14px;
    color:var(--muted);
    margin-bottom:20px;
    min-height:48px;
}

.tool-btn{
    color:var(--primary);
    font-size:14px;
    font-weight:600;
}

/* 联系方式 */

.contact-wrapper{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:22px;
}

.contact-card{
    background:#fff;
    border-radius:24px;
    border:1px solid var(--border);
    padding:26px;
    box-shadow:0 4px 12px rgba(15,23,42,.03);
}

.contact-card h3{
    font-size:22px;
    margin-bottom:6px;
}

.contact-card p{
    color:var(--muted);
    font-size:14px;
    margin-bottom:18px;
}

.contact-inner{
    display:flex;
    align-items:center;
    gap:18px;
}

.contact-qrcode{
    width:120px;
    background:#fff;
    border:1px solid var(--border);
    border-radius:18px;
    padding:8px;
    flex-shrink:0;
}

.contact-qrcode img{
    border-radius:12px;
}

.contact-info h4{
    font-size:18px;
    margin-bottom:6px;
}

.contact-info span{
    color:var(--muted);
    font-size:13px;
}

/* 公众号 */

.official-card{
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:30px;
    background:#fff;
    border-radius:26px;
    border:1px solid var(--border);
    padding:28px;
    box-shadow:0 4px 12px rgba(15,23,42,.03);
}

.official-left h3{
    font-size:28px;
    margin-bottom:10px;
}

.official-left p{
    color:var(--muted);
    max-width:600px;
}

.official-tags{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:18px;
}

.official-tags span{
    padding:8px 14px;
    border-radius:999px;
    background:#f3f7ff;
    color:#2563eb;
    font-size:13px;
}

.official-qrcode{
    width:150px;
    flex-shrink:0;
    background:#fff;
    border:1px solid var(--border);
    border-radius:22px;
    padding:10px;
}

.official-qrcode img{
    border-radius:16px;
}

/* footer */

footer{
    text-align:center;
    margin-top:80px;
    color:var(--muted);
    font-size:14px;
}

footer a{
    color:var(--primary);
}

/* 响应式 */

@media (max-width:960px){

    .hero-content{
        grid-template-columns:1fr;
    }

    .hero-text h2{
        font-size:36px;
    }

    .contact-wrapper{
        grid-template-columns:1fr;
    }

    .official-card{
        flex-direction:column;
        align-items:flex-start;
    }
}

@media (max-width:640px){

    .container{
        padding:18px 14px 50px;
    }

    .hero{
        padding:30px 24px;
        border-radius:24px;
    }

    .hero-text h2{
        font-size:30px;
    }

    .nav-links{
        width:100%;
    }

    .nav-links a{
        flex:1;
        text-align:center;
    }

    .contact-inner{
        flex-direction:column;
        align-items:flex-start;
    }

    .contact-qrcode{
        width:110px;
    }

    .official-qrcode{
        width:130px;
    }

    .section-title h2{
        font-size:28px;
    }
}