/* ======================================================================
 *  内容型工具页共用样式（笑话 / 冷知识）—— random-feed.css
 * ====================================================================== */

/* ===== Hero 工具区 ===== */
.rf-hero {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg, 24px);
    padding: 40px 32px 32px;
    margin-top: 16px;
    background:
        radial-gradient(600px 300px at 12% -10%, color-mix(in srgb, var(--rf-color, #0066ff) 22%, transparent), transparent 65%),
        radial-gradient(500px 260px at 95% 0%, color-mix(in srgb, var(--c-accent-purple, #7c5cff) 16%, transparent), transparent 60%),
        var(--c-bg-card, #fff);
    border: 1px solid var(--c-border, #eee);
}
.rf-hero-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 22px;
}
.rf-hero-icon {
    width: 52px;
    height: 52px;
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    border-radius: 16px;
    background: color-mix(in srgb, var(--rf-color, #0066ff) 14%, transparent);
}
.rf-hero-head h1 { font-size: 22px; font-weight: 800; }
.rf-hero-head .rf-sub {
    font-size: 13px;
    color: var(--c-text-muted, #9ca3af);
    margin-top: 2px;
}
.rf-counter {
    margin-left: auto;
    text-align: right;
    font-size: 12px;
    color: var(--c-text-muted, #9ca3af);
    line-height: 1.5;
}
.rf-counter b {
    font-size: 20px;
    font-weight: 800;
    color: var(--rf-color, #0066ff);
    margin-right: 2px;
}

/* ===== 内容卡 ===== */
.rf-card {
    position: relative;
    min-height: 200px;
    padding: 26px 28px;
    border-radius: 18px;
    background: var(--c-bg-soft, #f9fafb);
    border: 1px solid var(--c-border, #eee);
    cursor: pointer;
    animation: rf-in var(--rf-dur, 0.35s) cubic-bezier(0.22, 1, 0.36, 1);
    transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}
.rf-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.08);
    border-color: color-mix(in srgb, var(--rf-color, #0066ff) 45%, transparent);
}
.rf-card:active { transform: scale(0.985); }
@keyframes rf-in {
    from { opacity: 0; transform: translateY(14px) scale(0.97); }
    to { opacity: 1; transform: none; }
}
.rf-hint {
    margin-top: 12px;
    text-align: center;
    font-size: 12px;
    color: var(--c-text-muted, #9ca3af);
}
.rf-streak {
    position: fixed;
    top: 22%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    z-index: 60;
    padding: 10px 22px;
    border-radius: 999px;
    background: linear-gradient(135deg, #f43f5e, #f59e0b);
    color: #fff;
    font-size: 14px;
    font-weight: 800;
    box-shadow: 0 10px 26px rgba(244, 63, 94, 0.45);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
}
.rf-streak.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.rf-card-tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    color: var(--rf-color, #0066ff);
    background: color-mix(in srgb, var(--rf-color, #0066ff) 12%, transparent);
    margin-bottom: 12px;
}
.rf-card-title {
    font-size: 18px;
    font-weight: 800;
    line-height: 1.5;
    margin-bottom: 12px;
}
.rf-card-title a { color: var(--c-text, #1f2937); text-decoration: none; }
.rf-card-title a:hover { color: var(--rf-color, #0066ff); }
.rf-card-body {
    max-height: 260px;
    overflow-y: auto;
    font-size: 15px;
    line-height: 2;
    color: var(--c-text-sub, #4b5563);
}
.rf-card-body p { margin-bottom: 8px; }
.rf-card-body img { display: none; }
.rf-card-meta {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px dashed var(--c-border, #eee);
    font-size: 12px;
    color: var(--c-text-muted, #9ca3af);
}
.rf-empty {
    text-align: center;
    padding: 60px 0;
    color: var(--c-text-muted, #9ca3af);
}
.rf-empty .emoji { font-size: 44px; margin-bottom: 10px; }

/* ===== 操作栏 ===== */
.rf-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 22px;
}
.rf-actions .btn-primary {
    background: linear-gradient(135deg, var(--rf-color, #0066ff), color-mix(in srgb, var(--rf-color, #0066ff) 55%, var(--c-accent-purple, #7c5cff)));
    border: none;
}
.rf-actions .btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 20px color-mix(in srgb, var(--rf-color, #0066ff) 35%, transparent); }
.rf-like.on {
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.4);
    background: rgba(239, 68, 68, 0.08);
}

/* ===== 统计行 ===== */
.rf-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin: 26px 0;
}
.rf-stat {
    padding: 18px 16px;
    text-align: center;
    border-radius: var(--radius-md, 16px);
    background: var(--c-bg-card, #fff);
    border: 1px solid var(--c-border, #eee);
    transition: transform 0.2s, box-shadow 0.2s;
}
.rf-stat:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover, 0 10px 30px rgba(0,0,0,.08)); }
.rf-stat-num {
    font-size: 24px;
    font-weight: 800;
    background: linear-gradient(90deg, var(--rf-color, #0066ff), var(--c-accent-purple, #7c5cff));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.rf-stat-key { margin-top: 4px; font-size: 12px; color: var(--c-text-muted, #9ca3af); }

/* ===== 热门排行（Tab 内） ===== */
.rf-rank-list { list-style: none; padding: 0; margin: 0; counter-reset: rf-rank; }
.rf-rank-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 12px;
    transition: background 0.2s;
}
.rf-rank-item:hover { background: var(--c-bg-soft, #f5f6f8); }
.rf-rank-num {
    flex: 0 0 auto;
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 800;
    color: var(--c-text-muted, #9ca3af);
    background: var(--c-bg-soft, #f5f6f8);
}
.rf-rank-num.rank-1 { background: linear-gradient(135deg, #ffb703, #ff9f43); color: #fff; }
.rf-rank-num.rank-2 { background: linear-gradient(135deg, var(--c-primary, #0066ff), var(--c-accent-purple, #7c5cff)); color: #fff; }
.rf-rank-num.rank-3 { background: linear-gradient(135deg, var(--c-accent-purple, #7c5cff), var(--c-accent-pink, #ff6b9d)); color: #fff; }
.rf-rank-link {
    flex: 1;
    min-width: 0;
    font-size: 14px;
    color: var(--c-text-sub, #4b5563);
    text-decoration: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.rf-rank-link:hover { color: var(--rf-color, #0066ff); }
.rf-rank-views { flex: 0 0 auto; font-size: 12px; color: var(--c-text-muted, #9ca3af); }

@media (max-width: 640px) {
    .rf-hero { padding: 26px 18px 22px; }
    .rf-card { padding: 20px 18px; }
    .rf-hero-head h1 { font-size: 19px; }
    .rf-counter { display: none; }
    .rf-stats { grid-template-columns: repeat(3, 1fr); gap: 8px; }
    .rf-stat { padding: 14px 8px; }
    .rf-stat-num { font-size: 19px; }
}