/* ==========================================================================
   案例（CLASSIFY_CASE）专属样式
   —— 与文章/问答区分：画册式封面卡片 + 金色「案例」标识 + 成果数据条
   复用 custom.css 的 .page-hero / .main-layout / .sidebar / .empty-state / .cta-side 等
   ========================================================================== */
.case-page { --case-accent: var(--gold); --case-accent-600: var(--gold-600); }

/* hero 顶部小标签换成案例色调 */
.case-page .page-hero-label i { color: var(--case-accent); }

/* 列表网格 */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 8px; }
.case-card {
    position: relative; display: flex; flex-direction: column; background: #fff;
    border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden;
    box-shadow: var(--shadow-sm); transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--brand-100); }
.case-cover { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: linear-gradient(135deg, var(--brand-050), #fff); }
.case-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.case-card:hover .case-cover img { transform: scale(1.06); }
.case-cover-empty { display: flex; align-items: center; justify-content: center; height: 100%; color: var(--brand-100); font-size: 40px; }
.case-ribbon {
    position: absolute; top: 14px; left: 0; display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 14px 6px 12px; font-size: 12px; font-weight: 700; color: #3a2a05;
    background: linear-gradient(135deg, #D9AF5E, var(--case-accent)); border-radius: 0 999px 999px 0;
    box-shadow: 0 6px 14px rgba(199, 154, 70, .3);
}
.case-ribbon i { font-size: 11px; }
.case-body { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.case-cat { font-size: 12px; font-weight: 700; color: var(--case-accent-600); margin-bottom: 8px; }
.case-body h3 { font-size: 17px; line-height: 1.5; margin-bottom: 9px; }
.case-body h3 a:hover { color: var(--brand); }
.case-body p { font-size: 13.5px; color: var(--text-2); line-height: 1.7; flex: 1;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.case-meta { display: flex; align-items: center; gap: 16px; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border-2); }
.case-meta span { display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; color: var(--text-muted); }
.case-meta i { color: var(--case-accent-600); }
.case-more { margin-left: auto; font-size: 12.5px; font-weight: 700; color: var(--brand); }
.case-card:hover .case-more { color: var(--case-accent-600); }

/* 首页 / 地区页 案例板块 */
.case-eyebrow { background: var(--accent-050); color: var(--case-accent-600); }

/* ---------- 案例详情 ---------- */
.case-detail-hero { background: linear-gradient(160deg, var(--ink), var(--ink-2)); color: #fff; padding: 46px 0 40px; }
.case-detail-hero .case-badge {
    display: inline-flex; align-items: center; gap: 7px; padding: 6px 14px; border-radius: 999px;
    font-size: 12.5px; font-weight: 700; color: #3a2a05; background: linear-gradient(135deg, #D9AF5E, var(--case-accent)); margin-bottom: 14px;
}
.case-detail-hero h1 { font-size: 30px; color: #fff; font-family: var(--font-serif); letter-spacing: -.5px; line-height: 1.3; }
.case-detail-hero .case-hero-meta { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 16px; }
.case-detail-hero .case-hero-meta span { display: inline-flex; align-items: center; gap: 7px; font-size: 13.5px; color: rgba(255, 255, 255, .72); }
.case-detail-hero .case-hero-meta i { color: var(--case-accent); }

.case-cover-lg { border-radius: var(--radius-lg); overflow: hidden; margin: -34px 0 24px; box-shadow: var(--shadow-lg); position: relative; z-index: 2; background: #fff; }
.case-cover-lg img { width: 100%; display: block; }

/* 成果数据条 */
.case-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 0 0 26px; }
.case-fact { background: #fff; border: 1px solid var(--border); border-left: 3px solid var(--case-accent); border-radius: var(--radius-sm); padding: 16px 18px; }
.case-fact strong { display: block; font-size: 22px; color: var(--brand); font-family: var(--font-serif); }
.case-fact span { font-size: 12.5px; color: var(--text-2); }

@media (max-width: 900px) {
    .case-grid { grid-template-columns: repeat(2, 1fr); }
    .case-facts { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
    .case-grid { grid-template-columns: 1fr; }
    .case-facts { grid-template-columns: 1fr; }
    .case-cover-lg { margin-top: 0; }
}