* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: sans-serif;
    background-color: #f8fafc;
    color: #1e293b;
    line-height: 1.6;
}
.wrap {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
.header {
    background: #165dff;
    padding: 18px 0;
}
.head-box {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo-text {
    font-size: 26px;
    color: #fff;
    font-weight: bold;
}
.nav-menu a {
    color: #fff;
    text-decoration: none;
    margin-left: 30px;
    font-size: 15px;
}
.banner {
    background: linear-gradient(45deg,#165dff,#4080ff);
    padding: 80px 0;
    color: #fff;
}
.banner-row {
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
    align-items: center;
}
.ban-left {
    flex: 1;
    min-width: 320px;
}
.ban-tag {
    background: rgba(255,255,255,0.2);
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    margin-bottom: 25px;
}
.ban-title {
    font-size: 40px;
    margin-bottom: 20px;
}
.ban-title span {
    color: #fef08a;
}
.ban-desc {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 35px;
}
.btn-group a {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
}
.btn-white {
    background: #fff;
    color: #165dff;
    margin-right: 15px;
}
.btn-trans {
    border: 1px solid #fff;
    color: #fff;
}
.data-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-top: 40px;
}
.data-item {
    background: rgba(255,255,255,0.15);
    padding: 15px;
    border-radius: 8px;
    text-align: center;
}
.data-num {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 5px;
}
.ban-right {
    flex: 1;
    min-width: 320px;
}
.panel {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    color: #333;
}
.progress-line {
    height: 8px;
    background: #e2e8f0;
    border-radius: 4px;
    margin: 14px 0;
}
.progress-inner {
    height: 100%;
    background: #165dff;
    border-radius: 4px;
}
.info-tip {
    margin-top: 25px;
    padding: 20px;
    background: #eff6ff;
    border-radius: 8px;
    border-left: 4px solid #165dff;
}
.section {
    padding: 70px 0;
}
.sect-head {
    text-align: center;
    margin-bottom: 50px;
}
.sect-head h2 {
    font-size: 30px;
    margin-bottom: 12px;
}
.sect-head p {
    color: #64748b;
    max-width: 680px;
    margin: 0 auto;
}
.adv-grid {
    display: grid;
    grid-template-columns: repeat(6,1fr);
    gap: 20px;
}
.adv-card {
    background: #fff;
    padding: 22px 16px;
    border-radius: 10px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    text-align: center;
}
.adv-logo {
    width: 50px;
    height: 50px;
    margin: 0 auto 12px;
    border-radius: 8px;
    object-fit: cover;
}
.adv-num {
    width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    background: #165dff;
    color: #fff;
    border-radius: 50%;
    margin: 0 auto 15px;
}
.adv-card h3 {
    margin-bottom: 10px;
    font-size: 16px;
}
.adv-card p {
    color: #64748b;
    font-size: 13px;
}
.service-bg {
    background: #f1f5f9;
}
.service-grid {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 20px;
}
.service-card {
    background: #fff;
    padding: 22px;
    border-radius: 8px;
}
.service-card h3 {
    font-size: 17px;
    margin: 8px 0;
}
.service-card p {
    font-size: 14px;
    color: #64748b;
}
.case-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 24px;
}
.case-card {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    overflow: hidden;
}
.case-img {
    width: 100%;
    height: 180px;
    background: #e8f0fe;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #165dff;
    font-size: 18px;
}
.case-content {
    padding: 22px;
}
.case-card h4 {
    font-size: 18px;
    margin-bottom: 10px;
}
.case-card p {
    color: #64748b;
    font-size: 14px;
    margin-bottom: 8px;
}
.case-data {
    color: #165dff;
    font-weight: bold;
}

/* 系统售卖板块样式 */
.sale-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 24px;
}
.sale-card {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    padding: 28px;
    text-align: center;
}
.sale-card h4 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #1e293b;
}
.sale-desc {
    color: #64748b;
    font-size: 14px;
    margin-bottom: 20px;
    line-height: 1.8;
}
.sale-price {
    font-size: 24px;
    color: #165dff;
    font-weight: bold;
    margin-bottom: 20px;
}
.sale-btn {
    display: inline-block;
    padding: 10px 26px;
    background: #165dff;
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
    transition: background 0.3s;
}
.sale-btn:hover {
    background: #0e4bd9;
}

.consult-box {
    background: #165dff;
    color: #fff;
    text-align: center;
    padding: 50px 30px;
    border-radius: 12px;
}
.consult-box h2 {
    font-size: 28px;
    margin-bottom: 15px;
}
.news-section {
    background: #f1f5f9;
    padding: 60px 0;
}
.news-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 22px;
}
.news-card {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.news-card h4 {
    font-size: 18px;
    margin-bottom: 10px;
}
.news-card p {
    color: #64748b;
    font-size: 14px;
    margin-bottom: 8px;
}
.news-time {
    font-size: 13px;
    color: #94a3b8;
}
.footer {
    background: #1e293b;
    color: #94a3b8;
    padding: 35px 0;
    text-align: center;
}
@media (max-width:768px) {
    .nav-menu {display: none;}
    .adv-grid {grid-template-columns: repeat(2,1fr);}
    .service-grid,.news-grid,.case-grid,.sale-grid {grid-template-columns: 1fr;}
    .banner-row {flex-direction: column;}
}