/* Reset */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
    color: #333;
    background: #fff;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: #fff;
    height: 80px;
}
.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    align-items: center;
}
.logo { margin-right: 60px; }
.logo img { height: 28px; }
.nav {
    display: flex;
    gap: 38px;
    flex: 1;
}
.nav-link {
    font-size: 14px;
    color: #333;
    line-height: 80px;
    position: relative;
}
.nav-link:hover, .nav-link.active { color: #2b7de9; }
.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 22px;
    left: 50%; transform: translateX(-50%);
    width: 20px; height: 2px;
    background: #2b7de9;
}
.header-right { margin-left: auto; }
.app-download {
    font-size: 13px;
    color: #333;
    border: 1px solid #d9d9d9;
    padding: 5px 14px;
    border-radius: 3px;
}
.app-download:hover { border-color: #2b7de9; color: #2b7de9; }

/* ===== Banner ===== */
.banner {
    position: relative;
    height: 580px;
    margin-top: 80px;
    overflow: hidden;
}
.banner-bg {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    object-position: right center;
}
.banner-content {
    position: relative; z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.banner-content h1 {
    font-size: 44px;
    font-weight: 700;
    line-height: 1.3;
    color: #1a2840;
    margin-bottom: 24px;
}
.banner-desc {
    font-size: 15px;
    color: #666;
    margin-bottom: 28px;
}
.banner-tags {
    display: flex;
    gap: 12px;
    margin-bottom: 38px;
}
.tag {
    border: 1px solid #bec8d4;
    color: #4a5568;
    padding: 5px 18px;
    border-radius: 15px;
    font-size: 13px;
}
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #2b7de9;
    color: #fff;
    padding: 14px 44px;
    border-radius: 24px;
    font-size: 15px;
    width: fit-content;
}
.btn-primary:hover { background: #1b60c0; }

.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #2b7de9;
    color: #2b7de9;
    padding: 10px 40px;
    border-radius: 22px;
    font-size: 14px;
    width: 100%;
    max-width: 240px;
}
.btn-outline:hover { background: #2b7de9; color: #fff; }

/* ===== Module Section ===== */
.module {
    padding: 60px 0 40px;
    border-bottom: 1px solid #f0f0f0;
}
.module:last-of-type { border-bottom: none; }
.module-inner {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Module Body: card left + grid/list right */
.module-body {
    display: flex;
    gap: 15px;
    margin-bottom: 24px;
    align-items: stretch;
}

/* Left Card - image has its own text baked in (940x320, ratio 2.94:1) */
.module-card {
    flex: 0 0 65%;
    border-radius: 16px;
    overflow: hidden;
    background: #e4edf8;
}
.module-card-img {
    width: 100%;
    height: 100%;
    object-fit: fill;
    display: block;
}

/* Right: Grid (2x2 for first module) */
.module-grid {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}
.module-grid-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    background: #fff;
    border: 1px solid #dfebff;
    border-radius: 8px;
    min-height: 113px;
    padding: 16px 8px;
}
.module-grid-item:last-child:nth-child(odd) {
    grid-column: 1 / -1;
}
.module-grid-item:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}
.module-grid-icon {
    width: 36px; height: 36px;
}
.module-grid-icon svg { width: 100%; height: 100%; }
.module-grid-item span {
    font-size: 14px;
    color: #333;
    font-weight: 500;
}

/* Right: List (unused, kept for reference) */

/* Module Description */
.module-desc {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}
.desc-dot {
    width: 14px; height: 14px;
    min-width: 14px;
    border-radius: 50%;
    border: 1.5px solid #aaa;
    margin-top: 3px;
    position: relative;
}
.desc-dot::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 4px; height: 4px;
    border-radius: 50%;
    background: #aaa;
}
.module-desc p {
    font-size: 12px;
    color: #999;
    line-height: 2;
}

/* ===== Footer ===== */
.footer {
    background: #1c2033;
    color: #a0a8bc;
    padding: 48px 0 28px;
}
.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
.footer-top {
    display: flex;
    justify-content: space-between;
    padding-bottom: 28px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer-contact p, .footer-address p {
    font-size: 12px;
    margin-bottom: 8px;
    color: #a0a8bc;
}
.hotline {
    font-size: 14px;
    margin-bottom: 12px;
}
.hotline span {
    font-size: 20px;
    font-weight: 600;
    color: #fff;
}
.footer-qrcodes {
    display: flex;
    gap: 18px;
}
.qr-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}
.qr-item img {
    width: 72px; height: 72px;
    border-radius: 3px;
}
.qr-item span {
    font-size: 10px;
    color: #6a7388;
}
.footer-bottom {
    padding-top: 20px;
    text-align: center;
}
.footer-bottom p {
    font-size: 11px;
    color: #5a6378;
    margin-bottom: 4px;
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
    .module-body { flex-direction: column; }
    .module-card { flex: none; width: 100%; height: 260px; }
    .module-grid { height: auto; }
    .module-list { height: auto; }
    .footer-top { flex-direction: column; gap: 24px; }
}
@media (max-width: 768px) {
    .nav { display: none; }
    .banner { height: 400px; }
    .banner-content h1 { font-size: 28px; }
    .module-grid { grid-template-columns: 1fr; }
}