* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { width: 100%; }
body {
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    background: #f5f7fa;
    color: #222;
    line-height: 1.7;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
}
a { color: #1e6fff; text-decoration: none; transition: color .2s; }
a:hover { color: #ff8a00; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: linear-gradient(90deg, #0b2a6b 0%, #1456c8 100%);
    box-shadow: 0 2px 10px rgba(0,0,0,.15);
}
.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo {
    color: #fff;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.logo .logo-emoji { font-size: 26px; }
.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a {
    color: #e6efff;
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 15px;
    font-weight: 500;
}
.nav a:hover, .nav a.active {
    background: rgba(255,255,255,.15);
    color: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px 20px;
}

.banner {
    background: linear-gradient(135deg, #0b2a6b 0%, #1e6fff 50%, #00c2ff 100%);
    color: #fff;
    padding: 80px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 30%, rgba(255,255,255,.15), transparent 40%),
                radial-gradient(circle at 80% 70%, rgba(255,255,255,.1), transparent 40%);
}
.banner h1 {
    font-size: 40px;
    margin-bottom: 18px;
    letter-spacing: 2px;
    position: relative;
}
.banner p {
    font-size: 18px;
    max-width: 800px;
    margin: 0 auto 28px;
    opacity: .95;
    position: relative;
}
.banner .btn {
    display: inline-block;
    background: #ff8a00;
    color: #fff;
    padding: 14px 38px;
    border-radius: 30px;
    font-size: 17px;
    font-weight: 600;
    box-shadow: 0 6px 20px rgba(255,138,0,.4);
    position: relative;
}
.banner .btn:hover { background: #ff7400; color: #fff; transform: translateY(-2px); }
.banner .banner-tags {
    margin-top: 22px;
    font-size: 14px;
    opacity: .9;
    position: relative;
}
.banner .banner-tags span { margin: 0 10px; }

.section { padding: 50px 0; }
.section-title {
    text-align: center;
    margin-bottom: 40px;
}
.section-title h2 {
    font-size: 30px;
    color: #0b2a6b;
    margin-bottom: 10px;
}
.section-title p { color: #666; font-size: 15px; }

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}
.feature-card {
    background: #fff;
    padding: 30px 24px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,30,100,.06);
    border: 1px solid #eef2f8;
    transition: transform .3s, box-shadow .3s;
}
.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 10px 30px rgba(0,30,100,.12);
}
.feature-card .icon {
    font-size: 44px;
    margin-bottom: 14px;
}
.feature-card h3 {
    font-size: 19px;
    color: #1456c8;
    margin-bottom: 10px;
}
.feature-card p { color: #555; font-size: 14px; }

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 28px;
}
.product-card {
    background: #fff;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,30,100,.07);
    border: 1px solid #eef2f8;
    transition: transform .3s;
}
.product-card:hover { transform: translateY(-4px); }
.product-card .product-banner {
    height: 140px;
    background: linear-gradient(135deg, #1e6fff, #00c2ff);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 50px;
    color: #fff;
}
.product-card .product-body { padding: 22px; }
.product-card h3 { color: #0b2a6b; font-size: 20px; margin-bottom: 8px; }
.product-card .price { color: #ff8a00; font-weight: 700; font-size: 20px; margin: 10px 0; }
.product-card p { color: #666; font-size: 14px; }

.news-list { display: grid; gap: 18px; }
.news-item {
    background: #fff;
    padding: 22px 26px;
    border-radius: 10px;
    box-shadow: 0 3px 14px rgba(0,30,100,.05);
    border-left: 4px solid #1e6fff;
    transition: transform .2s, box-shadow .2s;
}
.news-item:hover { transform: translateX(4px); box-shadow: 0 6px 20px rgba(0,30,100,.1); }
.news-item h3 {
    color: #1456c8;
    font-size: 19px;
    margin-bottom: 8px;
}
.news-item .news-meta {
    color: #999;
    font-size: 13px;
    margin-bottom: 10px;
}
.news-item .news-meta span { margin-right: 16px; }
.news-item p { color: #555; font-size: 14px; }

.about-wrap {
    background: #fff;
    padding: 40px;
    border-radius: 14px;
    box-shadow: 0 4px 20px rgba(0,30,100,.06);
}
.about-wrap h2 { color: #0b2a6b; margin-bottom: 16px; font-size: 26px; }
.about-wrap p { color: #555; margin-bottom: 14px; }
.about-wrap .stat-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin: 30px 0;
}
.stat-box {
    text-align: center;
    padding: 24px;
    background: linear-gradient(135deg, #f0f6ff, #e6efff);
    border-radius: 10px;
}
.stat-box .num { font-size: 34px; color: #1e6fff; font-weight: 700; }
.stat-box .label { color: #666; font-size: 14px; margin-top: 6px; }

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}
@media (max-width: 768px) {
    .contact-grid { grid-template-columns: 1fr; }
    .banner h1 { font-size: 28px; }
    .banner p { font-size: 15px; }
    .nav { gap: 0; }
    .nav a { padding: 6px 10px; font-size: 13px; }
}
.contact-info, .contact-form {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,30,100,.06);
}
.contact-info h3, .contact-form h3 {
    color: #1456c8;
    margin-bottom: 18px;
    font-size: 20px;
    border-bottom: 2px solid #eef2f8;
    padding-bottom: 10px;
}
.contact-info ul li {
    padding: 10px 0;
    border-bottom: 1px dashed #eef2f8;
    color: #555;
}
.contact-info ul li .label {
    display: inline-block;
    width: 90px;
    color: #999;
}
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; color: #555; font-size: 14px; }
.form-group input, .form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
}
.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: #1e6fff;
}
.form-group textarea { resize: vertical; min-height: 100px; }
.btn-submit {
    background: #1e6fff;
    color: #fff;
    border: none;
    padding: 12px 30px;
    border-radius: 6px;
    font-size: 15px;
    cursor: pointer;
    transition: background .2s;
}
.btn-submit:hover { background: #1456c8; }

.section-cta {
    background: linear-gradient(135deg, #1456c8, #00c2ff);
    color: #fff;
    padding: 50px 20px;
    text-align: center;
    border-radius: 14px;
    margin: 40px 0;
}
.section-cta h2 { font-size: 26px; margin-bottom: 14px; }
.section-cta p { margin-bottom: 22px; opacity: .95; }
.section-cta .btn {
    display: inline-block;
    background: #fff;
    color: #1456c8;
    padding: 12px 32px;
    border-radius: 30px;
    font-weight: 600;
}
.section-cta .btn:hover { background: #ff8a00; color: #fff; }

.breadcrumb {
    background: #fff;
    padding: 14px 0;
    border-bottom: 1px solid #eef2f8;
}
.breadcrumb-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    color: #999;
    font-size: 14px;
}
.breadcrumb-inner a { color: #1e6fff; }
.breadcrumb-inner .sep { margin: 0 8px; color: #ccc; }

.footer {
    background: #0b1e3f;
    color: #b8c5d6;
    padding: 50px 20px 20px;
    margin-top: 50px;
}
.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}
.footer-col h4 {
    color: #fff;
    font-size: 17px;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid #1e3258;
}
.footer-col ul li { padding: 6px 0; }
.footer-col ul li a { color: #b8c5d6; font-size: 14px; }
.footer-col ul li a:hover { color: #fff; }
.footer-col p { font-size: 14px; line-height: 1.8; }
.footer-bottom {
    max-width: 1200px;
    margin: 30px auto 0;
    padding-top: 20px;
    border-top: 1px solid #1e3258;
    text-align: center;
    color: #7a8aa3;
    font-size: 13px;
}
.footer-bottom .kw {
    color: #b8c5d6;
}

.kw-text { color: #1e6fff; font-weight: 600; }

.tags-cloud { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.tags-cloud a {
    background: #eef4ff;
    color: #1456c8;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
}
.tags-cloud a:hover { background: #1e6fff; color: #fff; }

.faq-item {
    background: #fff;
    padding: 20px 24px;
    border-radius: 8px;
    margin-bottom: 14px;
    box-shadow: 0 2px 10px rgba(0,30,100,.05);
}
.faq-item h4 { color: #1456c8; margin-bottom: 8px; font-size: 16px; }
.faq-item p { color: #555; font-size: 14px; }

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    counter-reset: step;
}
.step-card {
    background: #fff;
    padding: 30px 22px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 16px rgba(0,30,100,.06);
    position: relative;
}
.step-card .num {
    width: 50px;
    height: 50px;
    line-height: 50px;
    margin: 0 auto 14px;
    background: linear-gradient(135deg, #1e6fff, #00c2ff);
    color: #fff;
    border-radius: 50%;
    font-size: 22px;
    font-weight: 700;
}
.step-card h4 { color: #0b2a6b; margin-bottom: 8px; font-size: 18px; }
.step-card p { color: #666; font-size: 14px; }

.page-404 {
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    text-align: center;
    padding: 40px 20px;
}
.page-404 .code { font-size: 90px; color: #1e6fff; font-weight: 700; }
.page-404 h2 { font-size: 24px; color: #0b2a6b; margin: 14px 0; }
.page-404 p { color: #666; margin-bottom: 20px; }