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

body {
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    color: #1a1a2e;
    background: #f5f7fb;
    line-height: 1.7;
    font-size: 16px;
}

a {
    color: #1652f0;
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: #0a3bbf;
}

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

.header {
    background: linear-gradient(135deg, #0b1437 0%, #1652f0 100%);
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 18px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.logo {
    font-size: 24px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 1px;
}

.logo span {
    color: #ffd166;
}

.nav {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.nav a {
    color: #e8eefc;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 15px;
    font-weight: 500;
}

.nav a:hover,
.nav a.active {
    background: rgba(255, 255, 255, 0.18);
    color: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 36px 24px;
}

.hero {
    background: linear-gradient(135deg, #0b1437 0%, #1652f0 60%, #1e88ff 100%);
    color: #fff;
    padding: 80px 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 30%, rgba(255, 209, 102, 0.18), transparent 40%),
                radial-gradient(circle at 80% 70%, rgba(0, 255, 200, 0.15), transparent 40%);
    pointer-events: none;
}

.hero-inner {
    position: relative;
    z-index: 2;
    max-width: 1000px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 42px;
    margin-bottom: 18px;
    font-weight: 800;
    line-height: 1.3;
}

.hero p {
    font-size: 18px;
    color: #d6e0ff;
    margin-bottom: 28px;
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    background: #ffd166;
    color: #0b1437;
    padding: 14px 36px;
    border-radius: 30px;
    font-size: 17px;
    font-weight: 700;
    box-shadow: 0 6px 20px rgba(255, 209, 102, 0.45);
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 26px rgba(255, 209, 102, 0.55);
    color: #0b1437;
}

.btn-outline {
    background: transparent;
    border: 2px solid #fff;
    color: #fff;
    margin-left: 12px;
    box-shadow: none;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
}

.section {
    padding: 60px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 32px;
    color: #0b1437;
    margin-bottom: 12px;
    font-weight: 800;
}

.section-title p {
    color: #5a6478;
    font-size: 16px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.card {
    background: #fff;
    border-radius: 14px;
    padding: 30px 26px;
    box-shadow: 0 4px 18px rgba(11, 20, 55, 0.06);
    transition: transform 0.25s, box-shadow 0.25s;
    border: 1px solid #eef1f7;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 10px 30px rgba(22, 82, 240, 0.12);
}

.card .icon {
    font-size: 40px;
    margin-bottom: 14px;
}

.card h3 {
    font-size: 20px;
    color: #0b1437;
    margin-bottom: 10px;
}

.card p {
    color: #5a6478;
    font-size: 15px;
}

.feature-banner {
    background: linear-gradient(135deg, #ffd166 0%, #ffb347 100%);
    color: #0b1437;
    border-radius: 18px;
    padding: 48px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
    margin: 40px 0;
}

.feature-banner h3 {
    font-size: 26px;
    margin-bottom: 8px;
    font-weight: 800;
}

.feature-banner p {
    font-size: 15px;
    opacity: 0.9;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.news-item {
    background: #fff;
    border-radius: 12px;
    padding: 24px 28px;
    box-shadow: 0 3px 12px rgba(11, 20, 55, 0.05);
    border-left: 4px solid #1652f0;
    transition: transform 0.2s, box-shadow 0.2s;
}

.news-item:hover {
    transform: translateX(6px);
    box-shadow: 0 6px 20px rgba(22, 82, 240, 0.14);
}

.news-item h3 {
    font-size: 19px;
    color: #0b1437;
    margin-bottom: 8px;
}

.news-item .meta {
    font-size: 13px;
    color: #8a92a6;
    margin-bottom: 10px;
}

.news-item .meta span {
    margin-right: 16px;
}

.news-item p {
    color: #5a6478;
    font-size: 15px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    background: #0b1437;
    color: #fff;
    border-radius: 18px;
    padding: 44px 30px;
    margin: 40px 0;
}

.stat-item {
    text-align: center;
}

.stat-item .num {
    font-size: 36px;
    font-weight: 800;
    color: #ffd166;
}

.stat-item .label {
    font-size: 14px;
    color: #c5d0ee;
    margin-top: 6px;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    margin-top: 20px;
}

.step {
    text-align: center;
    padding: 30px 20px;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 4px 14px rgba(11, 20, 55, 0.05);
    position: relative;
}

.step .step-num {
    width: 48px;
    height: 48px;
    background: #1652f0;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    margin: 0 auto 14px;
}

.step h3 {
    font-size: 18px;
    color: #0b1437;
    margin-bottom: 8px;
}

.step p {
    color: #5a6478;
    font-size: 14px;
}

.faq {
    background: #fff;
    border-radius: 14px;
    padding: 24px 28px;
    margin-bottom: 14px;
    box-shadow: 0 3px 10px rgba(11, 20, 55, 0.05);
}

.faq h3 {
    font-size: 18px;
    color: #1652f0;
    margin-bottom: 8px;
}

.faq p {
    color: #5a6478;
    font-size: 15px;
}

.contact-box {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.contact-card {
    background: #fff;
    border-radius: 14px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 4px 14px rgba(11, 20, 55, 0.06);
}

.contact-card .icon {
    font-size: 38px;
    margin-bottom: 12px;
}

.contact-card h3 {
    font-size: 19px;
    color: #0b1437;
    margin-bottom: 8px;
}

.contact-card p {
    color: #5a6478;
    font-size: 15px;
}

.page-banner {
    background: linear-gradient(135deg, #0b1437 0%, #1652f0 100%);
    color: #fff;
    padding: 60px 24px;
    text-align: center;
}

.page-banner h1 {
    font-size: 36px;
    margin-bottom: 12px;
    font-weight: 800;
}

.page-banner p {
    color: #d6e0ff;
    font-size: 16px;
    max-width: 720px;
    margin: 0 auto;
}

.content-block {
    background: #fff;
    border-radius: 14px;
    padding: 36px 34px;
    margin-bottom: 24px;
    box-shadow: 0 4px 14px rgba(11, 20, 55, 0.05);
}

.content-block h2 {
    font-size: 24px;
    color: #0b1437;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid #eef1f7;
}

.content-block h3 {
    font-size: 19px;
    color: #1652f0;
    margin: 18px 0 10px;
}

.content-block p {
    color: #3a4256;
    margin-bottom: 12px;
    font-size: 15px;
}

.content-block ul {
    margin: 10px 0 16px 22px;
    color: #3a4256;
}

.content-block li {
    margin-bottom: 8px;
    font-size: 15px;
}

.tag {
    display: inline-block;
    background: #eef3ff;
    color: #1652f0;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 12px;
    margin-right: 6px;
    margin-bottom: 4px;
}

.footer {
    background: #0b1437;
    color: #c5d0ee;
    padding: 50px 24px 24px;
    margin-top: 40px;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid #1e2a55;
}

.footer-col h4 {
    color: #fff;
    font-size: 17px;
    margin-bottom: 14px;
}

.footer-col a {
    display: block;
    color: #c5d0ee;
    margin-bottom: 8px;
    font-size: 14px;
}

.footer-col a:hover {
    color: #ffd166;
}

.footer-col p {
    font-size: 14px;
    line-height: 1.8;
}

.footer-bottom {
    text-align: center;
    padding-top: 22px;
    font-size: 13px;
    color: #8a92a6;
}

.footer-bottom a {
    color: #8a92a6;
    margin: 0 6px;
}

@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        align-items: flex-start;
    }
    .hero h1 {
        font-size: 30px;
    }
    .hero p {
        font-size: 16px;
    }
    .btn-outline {
        margin-left: 0;
        margin-top: 12px;
    }
    .section-title h2 {
        font-size: 26px;
    }
    .page-banner h1 {
        font-size: 26px;
    }
    .feature-banner {
        padding: 32px 22px;
    }
    .nav {
        width: 100%;
        justify-content: flex-start;
    }
}