/* ============================================
   组件：广告投放页 /advertise
   依赖：themes/*.css 提供的变量
   说明：全部走变量，禁止写死颜色
   ============================================ */

/* ---------- Hero ----------
   与「提交友链 / 申请收录」页头保持一致：无背景光晕、相同内边距
   -------------------------------------------- */
.ad-hero {
    padding: 2rem 0 1.25rem;
    text-align: center;
}

.ad-hero__title {
    font-size: var(--app-page-title-size);   /* 全站页头统一尺寸 */
    font-weight: 800;
    letter-spacing: -.02em;
    margin: 0 0 .6rem;
    color: var(--app-text);
}

/* 标题下方装饰条（纯色，无渐变） */
.ad-hero__title::after {
    content: "";
    display: block;
    width: 52px;
    height: 4px;
    margin: .75rem auto 0;
    border-radius: 999px;
    background: var(--app-accent);
}

.ad-hero__desc {
    max-width: 620px;
    margin: 0 auto;
    color: var(--app-text-muted);
    font-size: .95rem;
    line-height: 1.7;
}

/* ---------- 通用小节标题 ---------- */
.ad-section__title {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 0 0 .25rem;
    color: var(--app-text);
}

.ad-section__sub {
    font-size: .85rem;
    color: var(--app-text-muted);
    margin: 0 0 1.1rem;
}

/* ---------- 站点数据 ---------- */
.ad-stats {
    padding: .5rem 0 2.25rem;
}

.ad-stats__grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: .6rem;
}

.ad-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .35rem;
    padding: 1rem .6rem;
    text-align: center;
    background: var(--app-surface);
    border: 1px solid var(--app-border);
    border-radius: 14px;
    box-shadow: var(--app-shadow);
    transition: transform .18s ease, border-color .18s ease;
}

.ad-stat:hover {
    transform: translateY(-3px);
    border-color: var(--app-accent);
}

.ad-stat__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 11px;
    background: var(--app-accent-soft);
    color: var(--app-accent);
    font-size: 1.05rem;
}

.ad-stat__num {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--app-text);
    line-height: 1.1;
}

.ad-stat__num small {
    font-size: .72rem;
    font-weight: 600;
    color: var(--app-text-muted);
    margin-left: 1px;
}

.ad-stat__label {
    font-size: .78rem;
    color: var(--app-text-muted);
}

/* 手机端：4 列一行，紧凑排版 */
@media (max-width: 576px) {
    .ad-stat {
        gap: .25rem;
        padding: .7rem .25rem;
        border-radius: 11px;
    }

    .ad-stat__icon {
        width: 28px;
        height: 28px;
        border-radius: 8px;
        font-size: .85rem;
    }

    .ad-stat__num {
        font-size: 1rem;
    }

    .ad-stat__num small {
        font-size: .6rem;
    }

    .ad-stat__label {
        font-size: .64rem;
        line-height: 1.2;
    }
}

/* ---------- 广告位列表 ---------- */
.ad-slots {
    padding-bottom: 2rem;
}

.ad-slot-group + .ad-slot-group {
    margin-top: 2.25rem;
}

.slot-list {
    display: flex;
    flex-direction: column;
    gap: .7rem;
}

/* 移动端：头部整行 → 曝光/价格并排 → 按钮整行 */
.slot-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .75rem 1rem;
    align-items: center;
    padding: .9rem 1rem;
    background: var(--app-surface);
    border: 1px solid var(--app-border);
    border-radius: 14px;
    box-shadow: var(--app-shadow);
    transition: border-color .18s ease, box-shadow .18s ease;
}

.slot-row:hover {
    border-color: var(--app-accent);
    box-shadow: var(--app-shadow-lg);
}

.slot-row.is-busy {
    opacity: .72;
}

.slot-row__head {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: .8rem;
    min-width: 0;
}

.slot-row__code {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--app-accent-soft);
    color: var(--app-accent);
    font-weight: 800;
    font-size: .95rem;
    letter-spacing: .02em;
}

.slot-row.is-busy .slot-row__code {
    background: var(--app-surface-alt);
    color: var(--app-text-muted);
}

.slot-row__info {
    min-width: 0;
}

.slot-row__name {
    font-size: .95rem;
    font-weight: 600;
    margin: 0 0 .1rem;
    color: var(--app-text);
}

.slot-row__meta {
    font-size: .78rem;
    color: var(--app-text-muted);
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.slot-row__exposure {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.slot-row__exposure strong {
    font-size: 1rem;
    font-weight: 700;
    color: var(--app-text);
}

.slot-row__exposure span {
    font-size: .7rem;
    color: var(--app-text-muted);
}

.slot-row__price {
    text-align: right;
}

.slot-price {
    display: flex;
    align-items: baseline;
    justify-content: flex-end;
    gap: 1px;
    color: var(--app-accent);
}

.slot-price strong {
    font-size: 1.15rem;
    font-weight: 800;
}

.slot-price span {
    font-size: .74rem;
    color: var(--app-text-muted);
}

.slot-price__sub {
    font-size: .72rem;
    color: var(--app-text-muted);
    margin-top: .1rem;
}

.slot-row__action {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: .5rem;
    flex-wrap: wrap;
}

.slot-state {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    font-size: .8rem;
    font-weight: 600;
}

.slot-state--busy {
    color: var(--app-text-muted);
}

.slot-row__expire {
    font-size: .74rem;
    color: var(--app-text-muted);
}

/* ---------- 文本广告位卡片（与首页广告区一致的网格） ---------- */
.slot-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: .6rem;
}

.slot-card {
    display: flex;
    flex-direction: column;
    gap: .45rem;
    padding: .8rem .85rem;
    background: var(--app-surface);
    border: 1px solid var(--app-border);
    border-radius: 12px;
    box-shadow: var(--app-shadow);
    transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}

.slot-card:hover {
    border-color: var(--app-accent);
    transform: translateY(-3px);
    box-shadow: var(--app-shadow-lg);
}

.slot-card.is-busy {
    opacity: .72;
}

.slot-card__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .35rem;
}

.slot-card__code {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 30px;
    height: 24px;
    padding: 0 .4rem;
    border-radius: 7px;
    background: var(--app-accent-soft);
    color: var(--app-accent);
    font-size: .74rem;
    font-weight: 800;
    letter-spacing: .02em;
}

.slot-card.is-busy .slot-card__code {
    background: var(--app-surface-alt);
    color: var(--app-text-muted);
}

.slot-card__state {
    display: inline-flex;
    align-items: center;
    gap: .2rem;
    font-size: .7rem;
    font-weight: 600;
    color: var(--app-accent);
    white-space: nowrap;
}

.slot-card__state--busy {
    color: var(--app-text-muted);
}

.slot-card__name {
    font-size: .86rem;
    font-weight: 700;
    margin: 0;
    color: var(--app-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 数据区：标签左、数值右，窄卡片下也能整齐对齐 */
.slot-card__data {
    display: flex;
    flex-direction: column;
    gap: .25rem;
    padding-top: .5rem;
    border-top: 1px dashed var(--app-border);
}

.slot-card__cell {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: .35rem;
    min-width: 0;
}

.slot-card__cell-label {
    font-size: .72rem;
    color: var(--app-text-muted);
    white-space: nowrap;
}

.slot-card__cell-value {
    font-size: .85rem;
    font-weight: 700;
    color: var(--app-text);
    font-variant-numeric: tabular-nums;
}

.slot-card__cell-value--price {
    color: var(--app-accent);
}

.slot-card .btn {
    margin-top: auto;
    border-radius: 9px;
    padding: .38rem .6rem;
    font-size: .78rem;
}

.slot-card__expire {
    margin-top: auto;
    text-align: center;
    font-size: .72rem;
    color: var(--app-text-muted);
}

@media (max-width: 768px) {
    .slot-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: .5rem;
    }

    .slot-card {
        padding: .65rem .6rem;
        gap: .35rem;
    }

    .slot-card__name {
        font-size: .8rem;
    }

    .slot-card__cell-label {
        font-size: .66rem;
    }

    .slot-card__cell-value {
        font-size: .78rem;
    }

    .slot-card .btn {
        padding: .34rem .4rem;
        font-size: .72rem;
    }

    /* 横幅行：按钮撑满整行，便于点击 */
    .slot-row__action .btn {
        flex: 1;
    }
}

/* ---------- 投放流程 ---------- */
.ad-flow {
    padding: 1rem 0 2.25rem;
}

.ad-flow__grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .75rem;
}

.ad-flow__step {
    padding: 1.1rem .9rem;
    background: var(--app-surface);
    border: 1px solid var(--app-border);
    border-radius: 14px;
    text-align: center;
}

.ad-flow__no {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    margin-bottom: .55rem;
    border-radius: 50%;
    background: var(--app-accent);
    color: var(--app-accent-contrast, #fff);
    font-weight: 700;
    font-size: .85rem;
}

.ad-flow__title {
    font-size: .92rem;
    font-weight: 600;
    margin: 0 0 .2rem;
    color: var(--app-text);
}

.ad-flow__desc {
    font-size: .76rem;
    color: var(--app-text-muted);
    margin: 0;
    line-height: 1.5;
}

/* ---------- CTA ---------- */
.ad-cta {
    padding-bottom: 3rem;
}

.ad-cta__box {
    padding: 2rem 1.25rem;
    text-align: center;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--app-accent-soft), var(--app-surface));
    border: 1px solid var(--app-border);
}

.ad-cta__title {
    font-size: clamp(1.05rem, .9rem + 1.2vw, 1.4rem);
    font-weight: 700;
    margin: 0 0 .4rem;
    color: var(--app-text);
}

.ad-cta__desc {
    font-size: .88rem;
    color: var(--app-text-muted);
    margin: 0 0 1.1rem;
}

/* ---------- 内容宽度 ----------
   与「申请收录 / 友链申请」页保持一致：内容 880px 居中
   （外层仍是 Bootstrap container-xl，此处只约束内部内容块）
   -------------------------------------------- */
.ad-hero .container-xl > *,
.ad-stats .container-xl > *,
.ad-slots .container-xl > *,
.ad-flow .container-xl > *,
.ad-cta .container-xl > * {
    max-width: 880px;
    margin-left: auto;
    margin-right: auto;
}

/* ---------- 响应式 ---------- */
@media (min-width: 576px) {
    .ad-flow__grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

@media (min-width: 992px) {
    .ad-stats__grid {
        gap: .75rem;
    }

    .slot-row {
        grid-template-columns: minmax(0, 1fr) 110px 170px 150px;
        gap: 1.25rem;
        padding: 1rem 1.25rem;
    }

    .slot-row__head,
    .slot-row__action {
        grid-column: auto;
    }

    .slot-row__action {
        justify-content: flex-end;
    }
}

/* ============================================
   按钮美化
   说明：统一为「圆角 + 主题色光泽 + 悬浮上浮」，
        颜色全部走变量，兼容明暗 / 多套主题
   ============================================ */
.slot-row__action .btn,
.slot-card .btn,
.ad-cta__box .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .4rem;
    border-radius: 12px;
    font-weight: 600;
    border-width: 1px;
    transition: transform .18s ease, box-shadow .18s ease,
                background-color .18s ease, border-color .18s ease, color .18s ease;
}

/* 主按钮：主题色 + 顶部高光 + 彩色投影 */
.slot-row__action .btn-primary,
.slot-card .btn-primary,
.ad-cta__box .btn-primary {
    background-color: var(--app-accent);
    background-image: linear-gradient(135deg, rgba(255, 255, 255, .24), rgba(255, 255, 255, 0) 55%);
    border-color: var(--app-accent);
    color: var(--app-accent-contrast, #fff);
    box-shadow: 0 8px 18px -8px var(--app-accent);
}

.slot-row__action .btn-primary:hover,
.slot-card .btn-primary:hover,
.ad-cta__box .btn-primary:hover {
    color: var(--app-accent-contrast, #fff);
    border-color: var(--app-accent);
    transform: translateY(-2px);
    box-shadow: 0 12px 24px -8px var(--app-accent);
    filter: brightness(1.05);
}

.slot-row__action .btn-primary:active,
.slot-card .btn-primary:active,
.ad-cta__box .btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 6px 14px -8px var(--app-accent);
    filter: none;
}

/* 各位置按钮尺寸 */
.slot-row__action .btn {
    padding: .42rem 1rem;
    font-size: .82rem;
}

.ad-cta__box .btn {
    padding: .82rem 1.9rem;
    font-size: 1rem;
    box-shadow: 0 10px 24px -10px var(--app-accent);
}

/* 图标微动效 */
.slot-row__action .btn i,
.slot-card .btn i,
.ad-cta__box .btn i {
    transition: transform .18s ease;
}

.slot-row__action .btn:hover i,
.slot-card .btn:hover i,
.ad-cta__box .btn:hover i {
    transform: translateX(1px) scale(1.06);
}

/* ============================================
   细节优化
   ============================================ */

/* 统计卡片 */
.ad-stat__icon {
    background-image: linear-gradient(135deg, var(--app-accent-soft), transparent);
    border: 1px solid var(--app-border);
}

.ad-stat__num {
    transition: color .18s ease;
}

.ad-stat:hover .ad-stat__num {
    color: var(--app-accent);
}

/* 广告位：不再使用左侧高亮条，保持卡片自身阴影 */
.slot-row__code {
    box-shadow: 0 4px 10px -6px var(--app-accent);
}

/* 投放流程 */
.ad-flow__step {
    transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.ad-flow__step:hover {
    transform: translateY(-3px);
    border-color: var(--app-accent);
    box-shadow: var(--app-shadow);
}

.ad-flow__no {
    box-shadow: 0 0 0 4px var(--app-accent-soft);
}

/* CTA 光晕 */
.ad-cta__box {
    position: relative;
    overflow: hidden;
    box-shadow: var(--app-shadow);
}

.ad-cta__box::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(60% 120% at 50% 0%, var(--app-accent-soft), transparent 70%);
    pointer-events: none;
}

.ad-cta__box > * {
    position: relative;
}