* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft Yahei", sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    color: #EDE7FF;
    background: #1A0B2E;
    line-height: 1.8;
    font-size: 16px;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部导航 */
header {
    background: linear-gradient(135deg, #1A0B2E 0%, #2D1257 100%);
    border-bottom: 1px solid #4B2E8C;
    position: sticky;
    top: 0;
    z-index: 99;
    backdrop-filter: blur(6px);
}

.header-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #FFB139;
    letter-spacing: 1px;
}

nav a {
    color: #E3D7FF;
    text-decoration: none;
    margin-left: 26px;
    font-size: 15px;
    transition: 0.3s;
}

nav a:hover {
    color: #FFB139;
}

/* Banner首屏 */
.banner {
    background:
        radial-gradient(circle at 20% 20%, rgba(255, 177, 57, 0.25), transparent 40%),
        radial-gradient(circle at 80% 30%, rgba(123, 47, 253, 0.45), transparent 45%),
        linear-gradient(135deg, #2D1257 0%, #431E87 50%, #1A0B2E 100%);
    padding: 80px 0 100px 0;
    position: relative;
    overflow: hidden;
}

.banner::before {
    content: "";
    position: absolute;
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(255, 177, 57, 0.35), transparent 70%);
    right: 8%;
    top: 12%;
    filter: blur(40px);
}

.banner h1 {
    font-size: 42px;
    color: #FFFFFF;
    margin-bottom: 24px;
    line-height: 1.3;
}

.banner p {
    font-size: 19px;
    color: #E3D7FF;
    max-width: 860px;
}

section {
    padding: 70px 0;
}

h2 {
    font-size: 28px;
    color: #FFFFFF;
    margin-bottom: 30px;
    padding-left: 12px;
    border-left: 4px solid #FFB139;
}

h3 {
    font-size: 21px;
    color: #FFFFFF;
    margin: 24px 0 12px;
}

p {
    margin-bottom: 18px;
    color: #D8C8FF;
}

/* ========== 图片容器：水平居中 ========== */
.in-article-img {
    margin: 28px auto;
    max-width: 860px;
    text-align: center;  /* 图片居中核心 */
}

.in-article-img img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    border: 1px solid #4B2E8C;
    box-shadow:
        0 10px 30px rgba(123, 47, 253, 0.35),
        0 0 0 1px rgba(255, 177, 57, 0.12);
}

/* 卡片模块 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin: 35px 0;
}

.card-item {
    background: linear-gradient(135deg, #2A1447 0%, #3B1A6B 100%);
    border: 1px solid #4B2E8C;
    padding: 28px;
    border-radius: 14px;
    transition: 0.3s;
}

.card-item:hover {
    transform: translateY(-4px);
    border-color: #FFB139;
    box-shadow:
        0 12px 30px rgba(255, 177, 57, 0.22),
        0 0 0 1px rgba(255, 177, 57, 0.18);
}

.card-item h3 {
    color: #FFD36E;
}

/* FAQ问答区块 */
.faq-wrap {
    background: linear-gradient(135deg, #2A1447 0%, #3B1A6B 100%);
    border-radius: 16px;
    padding: 32px;
    border: 1px solid #4B2E8C;
}

.faq-item {
    margin-bottom: 26px;
}

.faq-item h3 {
    color: #FFD36E;
}

/* 资讯案例板块 */
.news-item {
    background: linear-gradient(135deg, #2A1447 0%, #3B1A6B 100%);
    border: 1px solid #4B2E8C;
    padding: 24px;
    border-radius: 14px;
    margin-bottom: 22px;
}

/* 底部相关阅读 */
.related-block {
    background: linear-gradient(135deg, #2A1447 0%, #3B1A6B 100%);
    padding: 36px;
    border-radius: 16px;
    margin-top: 20px;
    border: 1px solid #4B2E8C;
}

footer {
    background: #140826;
    color: #B7A5E0;
    padding: 40px 0;
    margin-top: 20px;
    font-size: 14px;
    border-top: 1px solid #4B2E8C;
}

@media (max-width: 768px) {
    .header-wrap {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    nav {
        margin-top: 10px;
    }

    nav a {
        margin: 0 10px;
    }

    .banner h1 {
        font-size: 30px;
    }

    .banner {
        padding: 50px 0 70px;
    }

    section {
        padding: 45px 0;
    }
}