:root {
    color-scheme: light;
}

body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: #f7f7fb;
    color: #1b1736;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

a {
    color: inherit;
    text-decoration: none;
}

a:hover {
    text-decoration: none;
}

.header-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 32px;
    max-width: 1120px;
    margin: 0 auto;
}

.header-bar__brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    color: #5c55cc;
}

.back-home-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 999px;
    background: rgba(92, 85, 204, 0.1);
    color: #5c55cc;
    font-size: 0.95rem;
    transition: background 0.2s ease, transform 0.2s ease;
}

.back-home-link:hover {
    background: rgba(92, 85, 204, 0.16);
    transform: translateY(-2px);
}

.hero {
    text-align: center;
    padding: 60px 24px 48px;
}

.hero__subtitle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 16px;
    border-radius: 999px;
    background: rgba(107, 93, 198, 0.12);
    color: #6b5dc6;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.04em;
}

.hero h1 {
    margin: 24px auto 16px;
    font-size: clamp(2.4rem, 5vw, 3rem);
    color: #1f1b4b;
    max-width: 760px;
    line-height: 1.2;
}

.hero__description {
    margin: 0 auto;
    max-width: 680px;
    color: #57546f;
    line-height: 1.7;
    font-size: 1rem;
}

.hero__meta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #6a6786;
    font-size: 0.95rem;
    margin-top: 16px;
}

.hero__dot {
    color: rgba(106, 103, 134, 0.6);
}

.blog-article {
    max-width: 840px;
    margin: 0 auto;
    padding: 0 24px 48px;
    display: block;
}

.blog-content {
    margin-top: 40px;
    color: #2d294f;
    line-height: 1.8;
    font-size: 1.02rem;
}

.blog-content h2 {
    font-size: 1.6rem;
    margin: 32px 0 12px;
    color: #1f1b4b;
}

.blog-content h3 {
    font-size: 1.3rem;
    margin: 24px 0 12px;
    color: #2d294f;
}

.blog-content p {
    margin: 16px 0;
}

.blog-content ul,
.blog-content ol {
    padding-left: 24px;
    margin: 16px 0;
}

.blog-content blockquote {
    margin: 20px 0;
    padding: 16px 20px;
    border-left: 4px solid rgba(107, 93, 198, 0.35);
    background: rgba(107, 93, 198, 0.08);
    border-radius: 12px;
    color: #4b4781;
}

.blog-card__tags--article {
    margin-top: 28px;
}

.related-section {
    margin-top: 48px;
    padding: 32px;
    border-radius: 20px;
    background: rgba(107, 93, 198, 0.08);
}

.related-section h2 {
    margin: 0 0 16px;
    font-size: 1.3rem;
    color: #413b86;
}

.related-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.related-list li a {
    display: inline-flex;
    align-items: center;
    padding: 8px 14px;
    border-radius: 999px;
    background: #fff;
    color: #5f57c9;
    box-shadow: 0 12px 24px rgba(107, 93, 198, 0.15);
    font-size: 0.9rem;
}

.blog-empty {
    text-align: center;
    color: #6a6786;
    font-size: 0.95rem;
    padding: 40px 0;
}

.blog-list-wrapper {
    max-width: 1120px;
    margin: 0 auto 80px;
    padding: 0 24px 24px;
}

.blog-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    margin-bottom: 28px;
}

.blog-search {
    width: 100%;
    max-width: 460px;
}

.blog-search input[type="search"] {
    width: 100%;
    padding: 12px 18px;
    border-radius: 999px;
    border: 1px solid rgba(92, 85, 204, 0.28);
    background: #fff;
    font-size: 0.95rem;
    color: #1b1736;
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.blog-search input[type="search"]:focus {
    outline: none;
    border-color: rgba(92, 85, 204, 0.6);
    box-shadow: 0 0 0 3px rgba(92, 85, 204, 0.16);
}

.blog-summary {
    margin: 0;
    color: #6a6786;
    font-size: 0.9rem;
    text-align: center;
}

.blog-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 28px;
    justify-content: center;
}

.blog-filter {
    padding: 6px 16px;
    border-radius: 999px;
    background: rgba(96, 86, 220, 0.12);
    color: #5c55cc;
    font-size: 0.85rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.blog-filter:hover,
.blog-filter:focus-visible {
    background: rgba(96, 86, 220, 0.2);
    outline: none;
    box-shadow: 0 0 0 2px rgba(96, 86, 220, 0.2);
}

.blog-filter.is-active {
    background: #5c55cc;
    color: #fff;
    box-shadow: 0 10px 24px rgba(92, 85, 204, 0.2);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 28px;
}

.blog-pagination[hidden] {
    display: none !important;
}

.blog-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-top: 36px;
    flex-wrap: wrap;
}

.blog-pagination__button {
    padding: 8px 16px;
    border-radius: 999px;
    border: 1px solid rgba(92, 85, 204, 0.3);
    background: #fff;
    color: #5c55cc;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.blog-pagination__button:hover,
.blog-pagination__button:focus-visible {
    background: rgba(92, 85, 204, 0.14);
    outline: none;
    box-shadow: 0 0 0 2px rgba(92, 85, 204, 0.18);
}

.blog-pagination__button.is-active {
    background: #5c55cc;
    color: #fff;
    border-color: transparent;
    box-shadow: 0 10px 24px rgba(92, 85, 204, 0.2);
    cursor: default;
}

.blog-pagination__button:disabled {
    cursor: not-allowed;
    opacity: 0.6;
    box-shadow: none;
}

.blog-card {
    background: rgba(255, 255, 255, 0.96);
    border-radius: 20px;
    padding: 28px;
    box-shadow: 0 24px 50px rgba(120, 108, 255, 0.12);
    border: 1px solid rgba(125, 109, 255, 0.1);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    position: relative;
    display: flex;
    flex-direction: column;
    min-height: 240px;
}

.blog-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 32px 60px rgba(118, 107, 255, 0.18);
}

.blog-card__title {
    margin: 0 0 12px;
    font-size: 1.25rem;
    color: #1f1b4b;
    line-height: 1.4;
}

.blog-card__meta {
    margin: 0 0 16px;
    font-size: 0.9rem;
    color: #736d8e;
    display: flex;
    align-items: center;
    gap: 8px;
}

.blog-card__description {
    color: #5d5978;
    line-height: 1.6;
    font-size: 0.98rem;
}

.blog-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
    padding-top: 20px;
}

pre {
    background: rgba(28, 24, 60, 0.08);
    padding: 18px 20px;
    border-radius: 14px;
    overflow-x: auto;
    font-size: 0.85rem;
    line-height: 1.6;
    color: #332f63;
}

code {
    font-family: "Fira Code", "JetBrains Mono", Consolas, monospace;
}

.blog-tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(107, 93, 198, 0.12);
    color: #6658d3;
    font-size: 0.8rem;
    font-weight: 600;
}

.blog-card__arrow {
    position: absolute;
    right: 24px;
    bottom: 24px;
    font-size: 1.4rem;
    color: #7c6bff;
    transition: transform 0.25s ease;
}

.blog-card:hover .blog-card__arrow {
    transform: translateX(6px);
}

.blog-footer-cta {
    margin: 64px auto 0;
    max-width: 920px;
    background: linear-gradient(90deg, #6b5dc6 0%, #9c6dff 100%);
    border-radius: 24px;
    color: #fff;
    padding: 48px 32px;
    text-align: center;
    box-shadow: 0 30px 60px rgba(111, 94, 215, 0.28);
}

.blog-footer-cta h3 {
    margin: 0 0 12px;
    font-size: clamp(1.6rem, 3.5vw, 2rem);
    line-height: 1.3;
}

.blog-footer-cta p {
    margin: 0 auto 24px;
    max-width: 540px;
    line-height: 1.7;
    font-size: 0.95rem;
}

.blog-footer-cta a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 999px;
    background: #fff;
    color: #6b5dc6;
    font-weight: 600;
    text-decoration: none;
}

@media (max-width: 768px) {
    .header-bar {
        padding: 20px;
    }

    .blog-grid {
        grid-template-columns: 1fr;
        gap: 22px;
    }

    .blog-card {
        padding: 24px;
    }

    .blog-footer-cta {
        margin: 48px 16px 0;
        padding: 36px 24px;
    }
}