/* ═══════════ 网址导航（AI 网站导航）═══════════
   依赖 shell.css 设计令牌: --topnav-h / --color-accent / --text-1..3 / --bg-hover */

.navdir {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--content-pad) 60px;
}

/* ---------- 头部:标题 + 搜索 ---------- */
.navdir-hero {
    text-align: center;
    padding: 36px 16px 28px;
}
.navdir-hero-title {
    font-size: 30px;
    font-weight: 800;
    color: var(--text-1);
    letter-spacing: 0.5px;
    margin: 0 0 8px;
}
.navdir-hero-sub {
    font-size: 14.5px;
    color: var(--text-3);
    margin: 0 0 20px;
}
.navdir-search {
    max-width: 520px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 8px;
    height: 46px;
    padding: 0 16px;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(16, 24, 40, 0.05);
    transition: border-color 0.2s, box-shadow 0.2s;
}
.navdir-search:focus-within {
    border-color: var(--color-accent);
    box-shadow: 0 2px 14px rgba(255, 0, 0, 0.1);
}
.navdir-search i,
.navdir-search svg { width: 18px; height: 18px; color: var(--text-3); flex: none; }
.navdir-search input {
    flex: 1;
    border: none;
    outline: none;
    background: none;
    font-size: 14.5px;
    font-family: inherit;
    color: var(--text-1);
}
.navdir-search input::placeholder { color: var(--text-3); }

/* ---------- 热门推荐 ---------- */
.navdir-featured { margin-bottom: 26px; }
.navdir-featured-head {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 16px;
    font-weight: 700;
    color: var(--text-1);
    margin: 0 0 12px;
}
.navdir-featured-head svg { width: 18px; height: 18px; color: var(--color-accent); }
.navdir-featured-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 10px;
}
.navdir-mini {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.07);
    border-radius: 12px;
    text-decoration: none;
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
    min-width: 0;
}
.navdir-mini:hover {
    border-color: rgba(0, 0, 0, 0.18);
    box-shadow: 0 4px 14px rgba(16, 24, 40, 0.08);
    transform: translateY(-2px);
}
.navdir-mini-name {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--text-1);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ---------- 图标(含首字兜底) ---------- */
.navdir-icon {
    position: relative;
    flex: none;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.navdir-icon--card { width: 44px; height: 44px; }
.navdir-icon--lg { width: 76px; height: 76px; }
.navdir-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 8px;
}
.navdir-icon img.is-broken { display: none; }
.navdir-icon-ph {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    border-radius: 8px;
    background: linear-gradient(135deg, #2a2d33 0%, #101114 100%);
    color: rgba(255, 255, 255, 0.92);
    font-weight: 700;
    font-size: 12px;
}
.navdir-icon--card .navdir-icon-ph { font-size: 18px; }
.navdir-icon--lg .navdir-icon-ph { font-size: 30px; }
.navdir-icon-ph.is-hidden { display: none; }

/* ---------- 一级分类锚点条(吸顶) ---------- */
.navdir-anchor {
    position: sticky;
    top: calc(var(--topnav-h) + 49px);   /* 顶栏 + 吸顶面包屑高度 */
    z-index: 790;
    display: flex;
    gap: 8px;
    padding: 10px 2px;
    margin-bottom: 8px;
    background: rgba(246, 247, 249, 0.94);
    backdrop-filter: blur(8px);
    overflow-x: auto;
    scrollbar-width: none;
}
.navdir-anchor::-webkit-scrollbar { display: none; }
.navdir-anchor a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    flex: none;
    padding: 7px 14px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    color: var(--text-2);
    font-size: 13.5px;
    text-decoration: none;
    white-space: nowrap;
    transition: all 0.2s;
}
.navdir-anchor a svg { width: 15px; height: 15px; }
.navdir-anchor a:hover {
    color: var(--text-1);
    border-color: rgba(0, 0, 0, 0.2);
}

/* ---------- 一级分类区块 ---------- */
.navdir-cat { margin-bottom: 8px; }
.navdir-cat-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    font-weight: 800;
    color: var(--text-1);
    margin: 22px 0 6px;
}
.navdir-cat-title svg { width: 20px; height: 20px; color: var(--color-accent); }

/* ---------- 二级分类 ---------- */
.navdir-sub { margin-bottom: 18px; }
.navdir-sub-title {
    display: flex;
    align-items: baseline;
    gap: 10px;
    font-size: 15.5px;
    font-weight: 700;
    color: var(--text-1);
    margin: 14px 0 12px;
    scroll-margin-top: calc(var(--topnav-h) + 100px);
}
.navdir-sub-title span {
    font-size: 12.5px;
    font-weight: 400;
    color: var(--text-3);
}

/* ---------- 站点卡片 ---------- */
.navdir-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 14px;
}
.navdir-card {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.07);
    border-radius: 14px;
    text-decoration: none;
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.navdir-card:hover {
    border-color: rgba(0, 0, 0, 0.18);
    box-shadow: 0 8px 24px rgba(16, 24, 40, 0.09);
    transform: translateY(-2px);
}
.navdir-card-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 3px;
}
.navdir-card-name {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    font-weight: 700;
    color: var(--text-1);
}
.navdir-card-tag {
    flex: none;
    padding: 1px 7px;
    border-radius: 999px;
    font-size: 10.5px;
    font-weight: 600;
    background: rgba(255, 0, 0, 0.07);
    color: var(--color-accent);
}
.navdir-card-intro {
    font-size: 13px;
    line-height: 1.55;
    color: var(--text-2);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.navdir-card-host {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11.5px;
    color: var(--text-3);
    margin-top: 2px;
}
.navdir-card-host svg { width: 12px; height: 12px; }

/* ---------- 搜索隐藏态 ---------- */
.is-hidden { display: none !important; }
.navdir-empty {
    text-align: center;
    padding: 40px 0 20px;
    font-size: 14px;
    color: var(--text-3);
}

/* ---------- 详情页 ---------- */
.navdir--detail { padding-top: 6px; }
.navdir-dcard {
    display: flex;
    align-items: center;
    gap: 22px;
    padding: 28px 30px;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.07);
    border-radius: 18px;
}
.navdir-dcard-info { flex: 1; min-width: 0; }
.navdir-dcard-name {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 26px;
    font-weight: 800;
    color: var(--text-1);
    margin: 0 0 6px;
}
.navdir-dcard-intro {
    font-size: 15px;
    color: var(--text-2);
    margin: 0 0 10px;
}
.navdir-dcard-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 13px;
    color: var(--text-3);
    margin-bottom: 16px;
}
.navdir-dcard-meta span {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.navdir-dcard-meta svg { width: 14px; height: 14px; }
.navdir-dcard-actions { display: flex; align-items: center; gap: 12px; }
.navdir-visit {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 22px;
    border-radius: 10px;
    background: var(--color-dark-btn, #0F0F0F);
    color: #fff;
    font-size: 14.5px;
    font-weight: 600;
    text-decoration: none;
    transition: opacity 0.2s, transform 0.2s;
}
.navdir-visit:hover { opacity: 0.88; transform: translateY(-1px); }
.navdir-visit svg { width: 16px; height: 16px; }
.navdir-back {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 9px 16px;
    border-radius: 10px;
    border: 1px solid rgba(0, 0, 0, 0.14);
    color: var(--text-2);
    font-size: 13.5px;
    text-decoration: none;
    transition: all 0.2s;
}
.navdir-back:hover { color: var(--text-1); border-color: rgba(0, 0, 0, 0.3); }
.navdir-back svg { width: 14px; height: 14px; }

.navddesc, .navdrel { margin-top: 22px; }
.navddesc-title {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 17px;
    font-weight: 700;
    color: var(--text-1);
    margin: 0 0 12px;
}
.navddesc-title svg { width: 18px; height: 18px; color: var(--color-accent); }
.navddesc-body {
    padding: 20px 24px;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.07);
    border-radius: 14px;
    font-size: 14.5px;
    line-height: 1.9;
    color: var(--text-2);
    white-space: pre-line;
}

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
    .navdir-featured-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 640px) {
    .navdir-hero { padding-top: 24px; }
    .navdir-hero-title { font-size: 24px; }
    .navdir-featured-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    .navdir-grid { grid-template-columns: 1fr; }
    .navdir-anchor { top: calc(var(--topnav-h) + 49px); }
    .navdir-dcard {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
        padding: 22px 18px;
    }
    .navdir-dcard-name { font-size: 21px; }
}
/* 手机端二级标题:标题与说明上下排布,避免挤压换行 */
@media (max-width: 640px) {
    .navdir-sub-title {
        flex-direction: column;
        align-items: flex-start;
        gap: 2px;
    }
    .navdir-sub-title span { line-height: 1.5; }
}