/* ==========================================================
   学习模块 course-catalog.css
   - 继承 home.css :root 变量
   ========================================================== */

/* ============ 面包屑 ============ */
.iti-cc-catalog {
    position: relative;
}
.iti-cc-catalog-img {
    position: absolute;
    top: 50px;
    right: 0;
    width: 20%;
}
.iti-cc-crumbs {
    background: var(--iti-bg);
}
.iti-cc-crumbs .iti-container {
    padding-top: 14px;
    padding-bottom: 14px;
    font-size: 12px;
    color: var(--iti-text-light);
}
.iti-cc-crumbs a { color: var(--iti-text-light); text-decoration: none; }
.iti-cc-crumbs a:hover { color: var(--iti-primary); }
.iti-cc-crumbs .sep { margin: 0 8px; color: var(--iti-bg-soft-2); }
.iti-cc-crumbs .cur { color: var(--iti-navy); font-weight: 600; }

/* ============ Hero ============ */
.iti-cc-hero {
    position: relative;
    overflow: hidden;
    padding: 40px 0 32px;
}

/* 右上角几何装饰（青 / 黄绿 / 深蓝 气泡） */

.iti-cc-hero-inner {
    position: relative;
    z-index: 1;
    text-align: center;
}

.iti-cc-hero-title {
    font-size: 32px;
    font-weight: 800;
    color: var(--iti-navy);
    margin: 0 0 10px;
}

.iti-cc-hero-sub {
    font-size: 14px;
    color: var(--iti-text);
    margin: 0;
}

/* ============ 搜索 + 筛选 ============ */
.iti-cc-filter {

    padding: 8px 0 28px;
}

.iti-cc-search {
    display: flex;
    align-items: center;
    gap: 10px;
    max-width: 560px;
    background: #fff;
    border-radius: 999px;
    padding: 16px 0;
}

.iti-cc-search-icon { color: var(--iti-text-light); flex-shrink: 0; }
.iti-cc-search-icon svg { width: 16px; height: 16px; display: block;border-right: 1px solid var(--iti-text-light); margin: 0 6px;padding-right: 6px;width: auto;}

.search-box {
    border: 1px solid var(--iti-text-light);
    display: flex;
    border-radius: 3px;
    align-items: center;
     max-width: 560px;
}
.iti-cc-search-input {
    flex: 1;
    min-width: 0;
    border: 0;
    outline: 0;
    font: inherit;
    font-size: 14px;
    color: var(--iti-navy);
    background: transparent;
    width: 400px;
    height: 34px;
}

/* 筛选行 */
.iti-cc-filter-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 16px;
}

.iti-cc-filter-label {
    flex: 0 0 44px;
    font-size: 13px;
    font-weight: 700;
    color: var(--iti-navy);
    padding-top: 6px;
}

.iti-cc-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    flex: 1;
    min-width: 0;
}

/* 讲师 chip 折叠：默认显示 2 行高度 */
.iti-cc-chips--collapse {
    max-height: 74px;
    overflow: hidden;
    transition: max-height .25s ease;
}
.iti-cc-chips--collapse.is-expanded {
    max-height: 400px;
}

.iti-cc-chip {
    display: inline-block;
    padding: 2px 14px;
    border-radius: 999px;
    border: 1px solid var(--iti-text-light);
    color: var(--iti-text-light);
    font-size: 12px;
    font-weight: 500;
    text-decoration: none;
    white-space: nowrap;
    transition: all var(--iti-transition);
}
.iti-cc-chip:hover {
    background: var(--iti-bg-soft-2);
     border: 1px solid var(--iti-primary);
    color: var(--iti-primary);
    text-decoration: none;
}
.iti-cc-chip.is-active {
    background: var(--iti-primary);
     border: 1px solid var(--iti-primary);
    color: #fff;
}

.iti-cc-more {
    flex-shrink: 0;
    background: transparent;
    border: 0;
    color: var(--iti-primary);
    font: inherit;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    padding: 6px 4px;
    white-space: nowrap;
}
.iti-cc-more:hover { text-decoration: underline; }

/* ============ 课程卡片 ============ */
.iti-cc-list {
    background: var(--iti-bg);
    padding: 8px 0 56px;
}

.iti-cc-empty {
    text-align: center;
    color: var(--iti-text-light);
    font-size: 14px;
    padding: 48px 0;
}

.iti-cc-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.iti-cc-card {
    background: #fff;
    border-radius: var(--iti-radius-lg);
    overflow: hidden;
     box-shadow: 
        /* 外阴影（浮起感） */
        0 4px 20px rgba(0, 0, 0, 0.1),
        /* 内阴影（凹陷感） */
        inset 0 2px 8px rgba(255, 255, 255, 0.6),
        inset 0 -2px 8px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    transition: transform var(--iti-transition), box-shadow var(--iti-transition);
}
.iti-cc-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--iti-shadow-md);
}

/* ---- 封面：几何色块（青 / 黄绿 / 深蓝） ---- */
.iti-cc-card-cover {
    padding: 16px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* 后台上传的封面图：铺满，压在几何装饰圆之上 */
.iti-cc-card-cover > img {

    width: 100%;
    display: block;
    z-index: 1;
    border-radius: 8px;
}
/* 角标/时长叠在封面图之上 */
.iti-cc-card-badge,
.iti-cc-card-duration { z-index: 2; }


.iti-cc-card-img-wrapper {
    position: relative;
    display: inline-block;
    border-radius: 12px;
    overflow: hidden;
}

.iti-cc-card-img-wrapper::after {
    content: "";
    position: absolute;
    inset: 0;
    box-shadow: inset 0 -50px 40px -30px rgba(0, 0, 0, 0.6);
    pointer-events: none;
}

.iti-cc-card-img {
    display: block;
    width: 100%;
    height: auto;
}


.iti-cc-card-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 2;
    background-image: url(/assets/images/course/badge-bg.png);
    background-size: 100% 100%;
    background-repeat: no-repeat;
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 3px 22px 3px 8px;
    letter-spacing: 0.3px;
    border-radius: 8px 0 0 0;
}



.iti-cc-card-logo {
    position: relative;
    z-index: 1;
    font-size: 26px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 2px;
    text-shadow: 0 2px 8px rgba(15, 31, 61, 0.2);
}

.iti-cc-card-duration {
    position: absolute;
    bottom: 16px;
    right: 20px;
    z-index: 2;
    color: #fff;
    font-size: 11px;
    font-weight: 400;
    padding: 2px 8px;
    border-radius: 4px;
    font-variant-numeric: tabular-nums;
}

/* ---- 卡体 ---- */
.iti-cc-card-body {
    padding: 16px 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}
.iti-cc-card-box {
    display: flex;
    align-items: center;
    gap: 10px;
    
    margin-bottom: 10px;
}

.iti-cc-card-lang {
    align-self: flex-start;
    flex-shrink: 0;
    font-size: 10px;
    font-weight: 700;
    padding: 1px 10px;
    border-radius: 100px;
}
.iti-cc-card-lang--zh { background: var(--iti-primary-light); color: var(--iti-primary); }
.iti-cc-card-lang--en { background: var(--iti-bg-soft-2); color: var(--iti-text-light); }

.iti-cc-card-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--iti-navy);
    margin: 0;
    line-height: 1.4;
}

.iti-cc-card-meta {
    font-size: 12px;
    color: var(--iti-text-light);
    margin: 0 0 4px;
}

.iti-cc-card .iti-btn {
    align-self: flex-start;
    font-size: 14px;
    margin-top: auto;
    padding: 6px 18px;
    letter-spacing: 5px;
}

/* ============ 分页 ============ */
.iti-cc-pager {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.iti-cc-pager-btn {
    min-width: 34px;
    height: 34px;
    padding: 0 10px;
    border-radius: var(--iti-radius);
    border: 1px solid var(--iti-border);
    background: #fff;
    color: var(--iti-navy);
    font-size: 13px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all var(--iti-transition);
}
.iti-cc-pager-btn svg { width: 14px; height: 14px; }
.iti-cc-pager-btn:hover {
    border-color: var(--iti-primary);
    color: var(--iti-primary);
    text-decoration: none;
}
.iti-cc-pager-btn.is-active {
    background: var(--iti-primary);
    border-color: var(--iti-primary);
    color: #fff;
}

.iti-cc-pager-dots { color: var(--iti-text-light); padding: 0 2px; }

.iti-cc-pager-total {
    margin-left: 8px;
    font-size: 12px;
    color: var(--iti-text-light);
}

/* ============ CTA ============ */
.iti-cc-cta {
    position: relative;
    background: url(/assets/images/course/cta-bg.png);
    background-size: 100% 100%;
    background-repeat: no-repeat;
    padding: 30px 0;
    overflow: hidden;
}


.iti-cc-cta-inner {
    position: relative;
    z-index: 1;
    text-align: center;
}

.iti-cc-cta-title {
    font-size: 30px;
    font-weight: 800;
    color: var(--iti-navy);
    margin: 0 0 10px;
}

.iti-cc-cta-desc {
    font-size: 16px;
    color: var(--iti-primary);
    margin: 0 0 24px;
}

/* ============ 按钮 ============ */
.iti-btn-pill { border-radius: 999px; }

/* ============ 响应式 ============ */
@media (max-width: 1199px) {
    .iti-cc-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1023px) {
    .iti-cc-hero { padding: 24px 0 20px; }
    .iti-cc-hero-title { font-size: 24px; }
    .iti-cc-hero-deco {
        width: 110px;
        height: 110px;
        right: 10px;
        opacity: 0.5;
    }

    .iti-cc-filter-row { flex-direction: column; gap: 8px; }
    .iti-cc-filter-label { padding-top: 0; }
    .iti-cc-chips--collapse { max-height: 68px; }

    .iti-cc-grid { grid-template-columns: repeat(2, 1fr); }
    .iti-cc-cta-deco-left,
    .iti-cc-cta-deco-right { display: none; }
}

@media (max-width: 600px) {
    .iti-cc-grid { grid-template-columns: 1fr; }
}