/* ============================================================
   广告模块通用样式（不依赖容器ID）
   作者：keai.cn
   ============================================================ */

/* ============================================================
   广告模块 - 完全静态样式（固定尺寸，不响应缩放）
   ============================================================ */

/* ---------- 容器 ---------- */
.keai-ad-module {
    position: relative;
    width: 288px;
    height: 340px;
    margin: 20px auto;
    background: #fafafa;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

/* ---------- 每个广告项 ---------- */
.keai-ad-module .ad-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 16px 12px 12px 12px;
    box-sizing: border-box;
    opacity: 0;
    pointer-events: none;
    will-change: transform, opacity;
}

/* ---------- 图片框 ---------- */
.keai-ad-module .ad-image-wrapper {
    width: 256px;
    height: 256px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.10);
    border: 2px solid #e8e8e8;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
}
.keai-ad-module .ad-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.keai-ad-module .ad-image-wrapper a {
    display: block;
    width: 100%;
    height: 100%;
    line-height: 0;
}
/* 光效伪元素 */
.keai-ad-module .ad-image-wrapper::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border-radius: 14px;
    pointer-events: none;
    opacity: 0;
    z-index: 1;
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.0), rgba(255, 87, 34, 0.0));
    transition: none;
}

/* ---------- 文字 ---------- */
.keai-ad-module .ad-text {
    margin-top: 10px;
    font-size: 18px;
    font-weight: 700;
    text-align: center;
    letter-spacing: 1px;
    white-space: nowrap;
    flex-shrink: 0;
}
.keai-ad-module .ad-text a {
    color: #333;
    text-decoration: none;
    transition: color 0.3s;
}
.keai-ad-module .ad-text a:hover {
    text-decoration: underline;
}

/* ========== 文字渐变流动 ========== */
.keai-ad-module .ad-text a {
    background: linear-gradient(90deg, #8800EE, #FF6600);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: textGradientFlow 4s linear infinite;
}
@keyframes textGradientFlow {
    0%   { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

/* ============================================================
   通用拉扯切换动画（8组，总周期32秒）
   ============================================================ */

@keyframes keai_ad_anim {
    0%, 3.125%   { opacity:0; transform:scaleX(0.6) scaleY(1.4); pointer-events:none; z-index:1; }
    3.125%       { opacity:0; transform:scaleX(0.6) scaleY(1.4); pointer-events:none; z-index:2; }
    5.208%       { opacity:1; transform:scaleX(1.15) scaleY(0.82); pointer-events:auto; z-index:2; }
    7.292%       { opacity:1; transform:scaleX(0.92) scaleY(1.08); pointer-events:auto; z-index:2; }
    9.375%       { opacity:1; transform:scaleX(1) scaleY(1); pointer-events:auto; z-index:2; }
    84.375%      { opacity:1; transform:scaleX(1) scaleY(1); pointer-events:auto; z-index:2; }
    87.500%      { opacity:0.8; transform:scaleX(1.45) scaleY(0.55); pointer-events:none; z-index:2; }
    90.625%      { opacity:0; transform:scaleX(1.8) scaleY(0.2); pointer-events:none; z-index:1; }
    90.625%, 100%{ opacity:0; transform:scaleX(0.6) scaleY(1.4); pointer-events:none; z-index:0; }
}

@keyframes keai_ad_img_effect {
    0%, 3.125%   { border-color:#e8e8e8; box-shadow:0 2px 12px rgba(0,0,0,0.10); border-radius:12px; }
    5.208%       { border-color:#ff8a65; box-shadow:0 8px 30px rgba(255,138,101,0.35); border-radius:16px; }
    9.375%       { border-color:#e8e8e8; box-shadow:0 2px 12px rgba(0,0,0,0.10); border-radius:12px; }
    84.375%      { border-color:#e8e8e8; box-shadow:0 2px 12px rgba(0,0,0,0.10); border-radius:12px; }
    87.500%      { border-color:#ef5350; box-shadow:0 12px 40px rgba(239,83,80,0.40); border-radius:8px; }
    90.625%      { border-color:#e8e8e8; box-shadow:0 2px 12px rgba(0,0,0,0.10); border-radius:12px; }
    100%         { border-color:#e8e8e8; box-shadow:0 2px 12px rgba(0,0,0,0.10); border-radius:12px; }
}

@keyframes keai_ad_text_effect {
    0%, 3.125%   { opacity:0; transform:translateX(40px) scale(0.92); color:#999; }
    5.208%       { opacity:1; transform:translateX(-6px) scale(1.06); color:#e64a19; }
    9.375%       { opacity:1; transform:translateX(0) scale(1); color:#333; }
    84.375%      { opacity:1; transform:translateX(0) scale(1); color:#333; }
    87.500%      { opacity:0.6; transform:translateX(-30px) scale(0.90); color:#c62828; }
    90.625%      { opacity:0; transform:translateX(-60px) scale(0.80); color:#999; }
    100%         { opacity:0; transform:translateX(40px) scale(0.92); color:#999; }
}

@keyframes keai_ad_glow {
    0%, 3.125%   { opacity:0; background:linear-gradient(135deg, rgba(255,193,7,0.0), rgba(255,87,34,0.0)); }
    5.208%       { opacity:0.5; background:linear-gradient(135deg, rgba(255,193,7,0.25), rgba(255,87,34,0.25)); }
    9.375%       { opacity:0; background:linear-gradient(135deg, rgba(255,193,7,0.0), rgba(255,87,34,0.0)); }
    84.375%      { opacity:0; background:linear-gradient(135deg, rgba(255,193,7,0.0), rgba(255,87,34,0.0)); }
    87.500%      { opacity:0.6; background:linear-gradient(135deg, rgba(255,193,7,0.35), rgba(255,87,34,0.35)); }
    90.625%      { opacity:0; background:linear-gradient(135deg, rgba(255,193,7,0.0), rgba(255,87,34,0.0)); }
    100%         { opacity:0; background:linear-gradient(135deg, rgba(255,193,7,0.0), rgba(255,87,34,0.0)); }
}

/* ---------- 为8个项绑定动画（延迟错开） ---------- */
.keai-ad-module .ad-item-0 { animation: keai_ad_anim 32s ease-in-out infinite; animation-delay: 0s; }
.keai-ad-module .ad-item-1 { animation: keai_ad_anim 32s ease-in-out infinite; animation-delay: -4s; }
.keai-ad-module .ad-item-2 { animation: keai_ad_anim 32s ease-in-out infinite; animation-delay: -8s; }
.keai-ad-module .ad-item-3 { animation: keai_ad_anim 32s ease-in-out infinite; animation-delay: -12s; }
.keai-ad-module .ad-item-4 { animation: keai_ad_anim 32s ease-in-out infinite; animation-delay: -16s; }
.keai-ad-module .ad-item-5 { animation: keai_ad_anim 32s ease-in-out infinite; animation-delay: -20s; }
.keai-ad-module .ad-item-6 { animation: keai_ad_anim 32s ease-in-out infinite; animation-delay: -24s; }
.keai-ad-module .ad-item-7 { animation: keai_ad_anim 32s ease-in-out infinite; animation-delay: -28s; }

.keai-ad-module .ad-item-0 .ad-image-wrapper { animation: keai_ad_img_effect 32s ease-in-out infinite; animation-delay: 0s; }
.keai-ad-module .ad-item-1 .ad-image-wrapper { animation: keai_ad_img_effect 32s ease-in-out infinite; animation-delay: -4s; }
.keai-ad-module .ad-item-2 .ad-image-wrapper { animation: keai_ad_img_effect 32s ease-in-out infinite; animation-delay: -8s; }
.keai-ad-module .ad-item-3 .ad-image-wrapper { animation: keai_ad_img_effect 32s ease-in-out infinite; animation-delay: -12s; }
.keai-ad-module .ad-item-4 .ad-image-wrapper { animation: keai_ad_img_effect 32s ease-in-out infinite; animation-delay: -16s; }
.keai-ad-module .ad-item-5 .ad-image-wrapper { animation: keai_ad_img_effect 32s ease-in-out infinite; animation-delay: -20s; }
.keai-ad-module .ad-item-6 .ad-image-wrapper { animation: keai_ad_img_effect 32s ease-in-out infinite; animation-delay: -24s; }
.keai-ad-module .ad-item-7 .ad-image-wrapper { animation: keai_ad_img_effect 32s ease-in-out infinite; animation-delay: -28s; }

.keai-ad-module .ad-item-0 .ad-text { animation: keai_ad_text_effect 32s ease-in-out infinite; animation-delay: 0s; }
.keai-ad-module .ad-item-1 .ad-text { animation: keai_ad_text_effect 32s ease-in-out infinite; animation-delay: -4s; }
.keai-ad-module .ad-item-2 .ad-text { animation: keai_ad_text_effect 32s ease-in-out infinite; animation-delay: -8s; }
.keai-ad-module .ad-item-3 .ad-text { animation: keai_ad_text_effect 32s ease-in-out infinite; animation-delay: -12s; }
.keai-ad-module .ad-item-4 .ad-text { animation: keai_ad_text_effect 32s ease-in-out infinite; animation-delay: -16s; }
.keai-ad-module .ad-item-5 .ad-text { animation: keai_ad_text_effect 32s ease-in-out infinite; animation-delay: -20s; }
.keai-ad-module .ad-item-6 .ad-text { animation: keai_ad_text_effect 32s ease-in-out infinite; animation-delay: -24s; }
.keai-ad-module .ad-item-7 .ad-text { animation: keai_ad_text_effect 32s ease-in-out infinite; animation-delay: -28s; }

.keai-ad-module .ad-item-0 .ad-image-wrapper::after { animation: keai_ad_glow 32s ease-in-out infinite; animation-delay: 0s; }
.keai-ad-module .ad-item-1 .ad-image-wrapper::after { animation: keai_ad_glow 32s ease-in-out infinite; animation-delay: -4s; }
.keai-ad-module .ad-item-2 .ad-image-wrapper::after { animation: keai_ad_glow 32s ease-in-out infinite; animation-delay: -8s; }
.keai-ad-module .ad-item-3 .ad-image-wrapper::after { animation: keai_ad_glow 32s ease-in-out infinite; animation-delay: -12s; }
.keai-ad-module .ad-item-4 .ad-image-wrapper::after { animation: keai_ad_glow 32s ease-in-out infinite; animation-delay: -16s; }
.keai-ad-module .ad-item-5 .ad-image-wrapper::after { animation: keai_ad_glow 32s ease-in-out infinite; animation-delay: -20s; }
.keai-ad-module .ad-item-6 .ad-image-wrapper::after { animation: keai_ad_glow 32s ease-in-out infinite; animation-delay: -24s; }
.keai-ad-module .ad-item-7 .ad-image-wrapper::after { animation: keai_ad_glow 32s ease-in-out infinite; animation-delay: -28s; }

/* ========== 已移除手机端缩放规则，所有设备统一尺寸 ========== */