/* SEO 专题内容页 · explore / collaboration / talent */

.page-seo {
    --seo-muted: #64748b;
    --seo-surface: #f7fbfb;
    --seo-line: rgba(15, 23, 42, 0.08);
}

.page-seo .seo-main {
    background: #fff;
}

.seo-hero {
    position: relative;
    padding: calc(var(--header-height, 70px) + 2.5rem) 0 2.5rem;
    background: var(--seo-surface);
    overflow: hidden;
}

.seo-hero__glow {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 70% 60% at 50% 0%, rgba(17, 214, 187, 0.12), transparent 70%);
    pointer-events: none;
}

.seo-hero__inner {
    position: relative;
    max-width: 40rem;
}

.seo-hero__label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    color: var(--primary-dark, #0d9a85);
    margin-bottom: 0.75rem;
}

.seo-hero__title {
    font-size: clamp(1.75rem, 4vw, 2.375rem);
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-color);
    margin-bottom: 0.75rem;
}

.seo-hero__title em {
    font-style: normal;
    color: var(--primary-color);
}

.seo-hero__lead {
    font-size: 1.0625rem;
    line-height: 1.75;
    color: var(--seo-muted);
    margin-bottom: 1.5rem;
}

.seo-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.seo-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.25rem;
    border-radius: 999px;
    font-size: 0.9375rem;
    font-weight: 600;
    text-decoration: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.seo-btn--primary {
    color: #fff;
    background: var(--primary-color);
}

.seo-btn--ghost {
    color: var(--primary-dark, #0d9a85);
    background: #fff;
    border: 1px solid rgba(13, 154, 133, 0.35);
}

.seo-btn:active {
    transform: translateY(1px);
}

.seo-content {
    padding: 2.5rem 0 3.5rem;
}

.seo-content__body {
    max-width: 42rem;
}

.seo-content__body h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-color);
    margin: 2rem 0 0.75rem;
    line-height: 1.4;
}

.seo-content__body h2:first-child {
    margin-top: 0;
}

.seo-content__body p {
    font-size: 0.9375rem;
    line-height: 1.85;
    color: var(--seo-muted);
    margin: 0 0 1rem;
}

.seo-content__body ul:not(.seo-related__links):not(.seo-guide-grid) {
    margin: 0 0 1rem;
    padding-left: 1.25rem;
    color: var(--seo-muted);
    font-size: 0.9375rem;
    line-height: 1.75;
}

.seo-content__body ul:not(.seo-related__links):not(.seo-guide-grid) li + li {
    margin-top: 0.375rem;
}

.seo-content__body p a,
.seo-content__body li a {
    color: var(--primary-dark, #0d9a85);
    text-decoration: underline;
    text-underline-offset: 0.15em;
}

.seo-content__body p a:hover,
.seo-content__body li a:hover {
    color: var(--primary-color, #11d6bb);
}

.seo-related {
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--seo-line);
}

.seo-related__title {
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--seo-muted);
    margin-bottom: 0.875rem;
}

.seo-related__links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.625rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.seo-related__links li {
    margin: 0;
}

.seo-related__links a {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.875rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary-dark, #0d9a85);
    text-decoration: none;
    border: 1px solid rgba(13, 154, 133, 0.28);
    border-radius: 999px;
    background: rgba(17, 214, 187, 0.06);
    transition: background 0.2s ease, border-color 0.2s ease;
}

.seo-related__links a:hover {
    text-decoration: none;
    background: rgba(17, 214, 187, 0.12);
    border-color: rgba(13, 154, 133, 0.45);
}

.seo-cta {
    margin-top: 2.5rem;
    padding: 1.5rem;
    border-radius: 0.875rem;
    background: var(--seo-surface);
    border: 1px solid var(--seo-line);
}

.seo-cta__title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.seo-cta__desc {
    font-size: 0.9375rem;
    line-height: 1.65;
    color: var(--seo-muted);
    margin-bottom: 1rem;
}

@media (max-width: 767px) {
    .seo-hero {
        padding-top: calc(var(--header-height, 70px) + 1.5rem);
    }

    .seo-hero__inner {
        text-align: center;
    }

    .seo-hero__actions {
        justify-content: center;
    }
}

/* 指南目录 hub · guide.html */
.seo-guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
    gap: 1rem;
    margin: 0 0 2rem;
    padding: 0;
    list-style: none;
}

.seo-guide-card {
    display: flex;
    flex-direction: column;
    padding: 1.25rem;
    border-radius: 0.75rem;
    border: 1px solid var(--seo-line);
    background: #fff;
    text-decoration: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.seo-guide-card:hover {
    border-color: rgba(13, 154, 133, 0.35);
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
}

.seo-guide-card__tag {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--primary-dark, #0d9a85);
    margin-bottom: 0.5rem;
}

.seo-guide-card__title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-color);
    margin: 0 0 0.375rem;
    line-height: 1.4;
}

.seo-guide-card__desc {
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--seo-muted);
    margin: 0;
    flex: 1;
}

.seo-steps {
    margin: 0 0 1rem;
    padding-left: 1.25rem;
    color: var(--seo-muted);
    font-size: 0.9375rem;
    line-height: 1.75;
}

.seo-steps li + li {
    margin-top: 0.5rem;
}

.seo-steps strong {
    color: var(--text-color);
}