/* ============================================================
   技能中心 Skill Center 专属样式（蓝紫系，与富文章 moyu 皮肤统一）
   主 #2563EB / 辅 #4F46E5 / 浅 #60A5FA
   仅作用于 .sk-* 作用域，不影响全站其它页面
   ============================================================ */
:root {
    --sk-primary: #2563EB;
    --sk-primary-dark: #1d4ed8;
    --sk-secondary: #4F46E5;
    --sk-light: #60A5FA;
    --sk-bg-soft: #EFF4FF;
    --sk-text: #1e293b;
    --sk-muted: #64748b;
    --sk-border: #e2e8f0;
    --sk-radius: 14px;
}

/* ---------- Hero 标题区 ---------- */
.sk-hero {
    background: linear-gradient(120deg, var(--sk-secondary) 0%, var(--sk-primary) 100%);
    color: #fff;
    border-radius: var(--sk-radius);
    padding: 34px 36px;
    margin-bottom: 26px;
    position: relative;
    overflow: hidden;
}
.sk-hero::after {
    content: "";
    position: absolute;
    right: -60px; top: -60px;
    width: 220px; height: 220px;
    background: radial-gradient(circle, rgba(255,255,255,.18), transparent 70%);
    border-radius: 50%;
}
.sk-hero h1 {
    font-size: 30px;
    font-weight: 800;
    margin: 0 0 10px;
    letter-spacing: 1px;
}
.sk-hero p {
    margin: 0;
    font-size: 15px;
    opacity: .92;
    max-width: 760px;
    line-height: 1.7;
}
.sk-hero .sk-hero__count {
    margin-top: 14px;
    font-size: 13px;
    opacity: .85;
}

/* ---------- 行业分类标签 ---------- */
.sk-cats {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 28px;
}
.sk-cat {
    display: inline-block;
    padding: 8px 18px;
    border-radius: 999px;
    background: var(--sk-bg-soft);
    color: var(--sk-primary);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid transparent;
    transition: all .18s ease;
}
.sk-cat:hover {
    background: #dbeafe;
    color: var(--sk-primary-dark);
    text-decoration: none;
}
.sk-cat.is-active {
    background: linear-gradient(120deg, var(--sk-secondary), var(--sk-primary));
    color: #fff;
    box-shadow: 0 6px 16px rgba(37,99,235,.28);
}

/* ---------- 技能卡片网格 ---------- */
.sk-grid {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -12px;
}
.sk-card {
    width: 33.3333%;
    padding: 0 12px 24px;
    box-sizing: border-box;
}
.sk-card__inner {
    background: #fff;
    border: 1px solid var(--sk-border);
    border-radius: var(--sk-radius);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: transform .2s ease, box-shadow .2s ease;
}
.sk-card__inner:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 34px rgba(37,99,235,.16);
}
.sk-card__img {
    position: relative;
    height: 168px;
    overflow: hidden;
    background: linear-gradient(135deg, #eef2ff, #e0e7ff);
}
.sk-card__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.sk-card__img .sk-badge {
    position: absolute;
    top: 12px; left: 12px;
}
.sk-card__body {
    padding: 16px 18px 18px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.sk-card__title {
    font-size: 17px;
    font-weight: 700;
    color: var(--sk-text);
    margin: 0 0 8px;
    line-height: 1.4;
}
.sk-card__title a {
    color: inherit;
    text-decoration: none;
}
.sk-card__title a:hover { color: var(--sk-primary); }
.sk-card__summary {
    color: var(--sk-muted);
    font-size: 13.5px;
    line-height: 1.7;
    margin: 0 0 12px;
    flex: 1;
}
.sk-card__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    font-size: 12.5px;
    color: var(--sk-muted);
    border-top: 1px dashed var(--sk-border);
    padding-top: 12px;
}
.sk-card__tool {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.sk-card__more {
    display: inline-block;
    margin-top: 2px;
    color: var(--sk-primary);
    font-weight: 600;
    text-decoration: none;
}
.sk-card__more:hover { color: var(--sk-primary-dark); }

/* ---------- 徽章 ---------- */
.sk-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.6;
}
.sk-badge--type {
    background: rgba(79,70,229,.12);
    color: var(--sk-secondary);
}
.sk-badge--level {
    background: rgba(37,99,235,.12);
    color: var(--sk-primary);
}
.sk-badge--free {
    background: rgba(22,163,74,.14);
    color: #15803d;
}
.sk-badge--price {
    background: rgba(217,119,6,.14);
    color: #b45309;
}

/* ---------- 详情页 ---------- */
.sk-detail-head {
    background: #fff;
    border: 1px solid var(--sk-border);
    border-radius: var(--sk-radius);
    padding: 28px 32px;
    margin-bottom: 22px;
}
.sk-detail-head h1 {
    font-size: 26px;
    font-weight: 800;
    color: var(--sk-text);
    margin: 0 0 14px;
    line-height: 1.4;
}
.sk-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px 22px;
    font-size: 13.5px;
    color: var(--sk-muted);
    align-items: center;
}
.sk-detail-meta b { color: var(--sk-text); font-weight: 600; }
.sk-detail-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 16px 0 0;
}
.sk-btn-ext {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 18px;
    padding: 11px 22px;
    border-radius: 10px;
    background: linear-gradient(120deg, var(--sk-secondary), var(--sk-primary));
    color: #fff !important;
    font-weight: 700;
    text-decoration: none;
    box-shadow: 0 8px 20px rgba(37,99,235,.28);
    transition: transform .18s ease;
}
.sk-btn-ext:hover { transform: translateY(-2px); color:#fff; }

/* 详情正文排版（content 已是 HTML，这里只做样式） */
.sk-content {
    background: #fff;
    border: 1px solid var(--sk-border);
    border-radius: var(--sk-radius);
    padding: 30px 34px;
    color: var(--sk-text);
    font-size: 15.5px;
    line-height: 1.9;
}
.sk-content h1, .sk-content h2, .sk-content h3,
.sk-content h4, .sk-content h5, .sk-content h6 {
    color: var(--sk-secondary);
    margin: 24px 0 12px;
    line-height: 1.4;
    font-weight: 700;
}
.sk-content h1 { font-size: 24px; }
.sk-content h2 { font-size: 21px; }
.sk-content h3 { font-size: 18px; }
.sk-content p { margin: 0 0 14px; }
.sk-content ul, .sk-content ol { margin: 0 0 14px 22px; padding: 0; }
.sk-content li { margin: 6px 0; }
.sk-content blockquote {
    margin: 0 0 16px;
    padding: 12px 18px;
    border-left: 4px solid var(--sk-light);
    background: var(--sk-bg-soft);
    color: var(--sk-muted);
    border-radius: 0 8px 8px 0;
}
.sk-content a { color: var(--sk-primary); text-decoration: underline; }
.sk-content code.sk-code-inline {
    background: var(--sk-bg-soft);
    color: var(--sk-secondary);
    padding: 2px 7px;
    border-radius: 6px;
    font-size: 13.5px;
    font-family: Consolas, Monaco, monospace;
}
.sk-content pre.sk-code {
    background: #0f172a;
    color: #e2e8f0;
    padding: 16px 18px;
    border-radius: 10px;
    overflow-x: auto;
    margin: 0 0 16px;
}
.sk-content pre.sk-code code { font-family: Consolas, Monaco, monospace; font-size: 13.5px; }
.sk-content table.sk-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 0 16px;
    font-size: 14px;
}
.sk-content table.sk-table th,
.sk-content table.sk-table td {
    border: 1px solid var(--sk-border);
    padding: 9px 12px;
    text-align: left;
}
.sk-content table.sk-table th { background: var(--sk-bg-soft); color: var(--sk-secondary); }
.sk-content hr { border: none; border-top: 1px solid var(--sk-border); margin: 20px 0; }

/* ---------- 详情页侧边栏 ---------- */
.sk-side-card {
    background: #fff;
    border: 1px solid var(--sk-border);
    border-radius: var(--sk-radius);
    padding: 18px;
    margin-bottom: 20px;
}
.sk-side-card__title {
    font-size: 16px;
    font-weight: 700;
    color: var(--sk-secondary);
    margin: 0 0 14px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--sk-border);
}
.sk-side-list {
    list-style: none;
    margin: 0;
    padding: 0;
}
.sk-side-list li {
    margin-bottom: 10px;
}
.sk-side-list li:last-child { margin-bottom: 0; }
.sk-side-list__link {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--sk-text);
    text-decoration: none;
    font-size: 13.5px;
    line-height: 1.5;
}
.sk-side-list__link:hover { color: var(--sk-primary); }
.sk-side-list__link img {
    width: 46px;
    height: 34px;
    object-fit: cover;
    border-radius: 6px;
    flex-shrink: 0;
    background: var(--sk-bg-soft);
}
.sk-side-list__txt {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.sk-side-list__empty {
    color: var(--sk-muted);
    font-size: 13.5px;
    padding: 8px 0;
}

/* 复制 prompt 卡片 */
.sk-side-card--prompt {
    padding: 18px 18px 22px;
}
.sk-side-card--prompt .sk-side-card__head {
    text-align: center;
    margin-bottom: 12px;
}
.sk-platforms {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 12px;
}
.sk-platform {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #f1f5f9;
    color: var(--sk-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all .18s ease;
}
.sk-platform:hover {
    background: linear-gradient(120deg, var(--sk-secondary), var(--sk-primary));
    color: #fff;
    transform: translateY(-2px);
}
.sk-side-card--prompt h4 {
    font-size: 15.5px;
    font-weight: 700;
    color: var(--sk-text);
    margin: 0;
    line-height: 1.5;
}
.sk-side-card__txt {
    font-size: 13px;
    color: var(--sk-muted);
    line-height: 1.7;
    margin: 0 0 14px;
}
.sk-prompt-txt {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
}
.sk-btn-copy {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 12px 16px;
    border-radius: 999px;
    border: none;
    font-size: 14px;
    font-weight: 700;
    color: #1e293b;
    cursor: pointer;
    background: linear-gradient(90deg, #fbbf24, #34d399, #38bdf8, #a78bfa);
    background-size: 200% auto;
    box-shadow: 0 6px 18px rgba(251,191,36,.3);
    transition: all .2s ease;
}
.sk-btn-copy:hover {
    background-position: right center;
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(251,191,36,.36);
}
.sk-btn-copy.is-copied {
    background: linear-gradient(120deg, var(--sk-secondary), var(--sk-primary));
    color: #fff;
}

/* ---------- 响应式 ---------- */
@media (max-width: 991px) {
    .sk-card { width: 50%; }
}
@media (max-width: 767px) {
    .sk-card { width: 100%; }
    .sk-hero { padding: 26px 22px; }
    .sk-hero h1 { font-size: 24px; }
    .sk-content { padding: 22px 18px; }
    .sk-detail-head { padding: 22px 18px; }
}