/* ============================================================
   青鸟百业 · 百业活动模块
   卡片式列表：桌面双列 / 移动单列
   卡片 = 上 2/3 游戏图（待插入）+ 下 1/3 简介
   ============================================================ */

.activities {
    position: relative;
    overflow: hidden;
}

.activities::before {
    content: "";
    position: absolute;
    width: 480px;
    height: 480px;
    top: -140px;
    right: -160px;
    border-radius: 50%;
    filter: blur(90px);
    background: radial-gradient(circle, rgba(207, 166, 112, 0.13), transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.activities .container {
    position: relative;
    z-index: 1;
}

/* ---------- 引导文案 ---------- */
.act-lead {
    max-width: 720px;
    margin: 0 auto 28px;
    text-align: center;
    color: var(--text-dim);
    font-size: 15px;
    line-height: 2;
    letter-spacing: 0.5px;
}

/* ---------- 列表：桌面双列 ---------- */
.act-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
    transition: opacity 0.16s ease;
}

.act-list.is-fading {
    opacity: 0;
}

.act-empty {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--text-mute);
    padding: 30px 0;
}

/* ---------- 活动卡片 ---------- */
.act-card {
    position: relative;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: linear-gradient(160deg, rgba(42, 42, 42, 0.72), rgba(24, 24, 24, 0.86));
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    box-shadow: 0 2px 14px rgba(0, 0, 0, 0.35);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    animation: actCardIn 0.42s ease both;
}

@keyframes actCardIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.act-card:hover {
    transform: translateY(-6px);
    border-color: rgba(207, 166, 112, 0.5);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.5), 0 0 30px rgba(207, 166, 112, 0.22);
}

/* 上 2/3：游戏截图（后续插入） */
.act-shot {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #15181c;
}

.act-shot img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

.act-card:hover .act-shot img {
    transform: scale(1.04);
}

.act-shot::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(12, 12, 12, 0.7) 0%, rgba(12, 12, 12, 0.08) 45%, transparent 72%);
}

/* 背景装饰编号 */
.act-no {
    position: absolute;
    left: 14px;
    top: -10px;
    z-index: 2;
    font-family: var(--font-serif);
    font-size: 96px;
    line-height: 1;
    font-weight: 700;
    color: var(--gold-light);
    opacity: 0.16;
    letter-spacing: 2px;
    pointer-events: none;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
}

.act-shot img.is-placeholder {
    filter: saturate(0.75);
}

/* 下 1/3：简介 */
.act-body {
    padding: 18px 22px 22px;
}

.act-host {
    display: inline-block;
    padding: 2px 11px;
    border: 1px solid rgba(207, 166, 112, 0.45);
    border-radius: 20px;
    background: rgba(207, 166, 112, 0.1);
    color: var(--gold-light);
    font-size: 11.5px;
    letter-spacing: 1.5px;
}

.act-title {
    margin-top: 10px;
    font-family: var(--font-serif);
    font-size: 21px;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: var(--text);
}

.act-desc {
    margin-top: 8px;
    font-size: 13.5px;
    line-height: 1.95;
    color: var(--text-dim);
}

/* ---------- 分页控件 ---------- */
.act-pager {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    margin-top: 30px;
}

.ap-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 16px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: rgba(42, 42, 42, 0.6);
    color: var(--gold);
    font-family: inherit;
    font-size: 13px;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.25s ease;
}

.ap-btn:hover {
    border-color: var(--border-strong);
    background: rgba(207, 166, 112, 0.12);
    color: var(--gold-light);
    box-shadow: 0 0 14px rgba(207, 166, 112, 0.24);
}

.ap-btn:disabled {
    opacity: 0.32;
    cursor: not-allowed;
    box-shadow: none;
    background: rgba(42, 42, 42, 0.6);
    border-color: var(--border);
}

.ap-dots {
    display: flex;
    align-items: center;
    gap: 9px;
}

.ap-dot {
    width: 34px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    cursor: pointer;
    color: var(--text-mute);
    font-family: inherit;
    font-size: 12px;
    letter-spacing: 1px;
    transition: color 0.25s ease;
}

.ap-dot::before {
    content: "";
    width: 7px;
    height: 7px;
    margin-right: 7px;
    border-radius: 50%;
    background: var(--text-mute);
    transition: all 0.25s ease;
}

.ap-dot:hover { color: var(--gold-light); }

.ap-dot.active { color: var(--gold-light); }

.ap-dot.active::before {
    width: 20px;
    border-radius: 4px;
    background: var(--gold);
    box-shadow: 0 0 10px rgba(207, 166, 112, 0.6);
}

.ap-num {
    font-family: var(--font-serif);
    font-size: 14px;
    letter-spacing: 2px;
    color: var(--text-dim);
    min-width: 74px;
    text-align: center;
}

.ap-num .cur {
    color: var(--gold-light);
    font-size: 17px;
}

/* ---------- 响应式：移动端单列 ---------- */
@media (max-width: 768px) {
    .act-list {
        grid-template-columns: minmax(0, 1fr);
        gap: 18px;
    }

    .act-no { font-size: 72px; top: -6px; left: 10px; }
    .act-body { padding: 15px 16px 18px; }
    .act-title { font-size: 18px; }
    .act-desc { font-size: 13px; line-height: 1.85; }

    .act-pager { gap: 10px; flex-wrap: wrap; }
    .ap-btn { padding: 6px 12px; font-size: 12px; }
    .ap-dot { width: 26px; }
    .ap-num { min-width: 60px; font-size: 13px; }
}

@media (prefers-reduced-motion: reduce) {
    .act-card,
    .act-list {
        animation: none !important;
        transition: none !important;
    }
}