/* ============================================================
   柚田科技官网前台样式（P3，本地 Bootstrap 5.3.0 之上）
   设计基调：简洁科技企业风；深空蓝主色与后台品牌一致
   ============================================================ */
:root {
    --yts-primary: #232946;
    --yts-accent: #4f6ef2;
    --yts-accent-dark: #3d56c9;
    --yts-text: #2b3153;
    --yts-muted: #6b7194;
    --yts-bg-soft: #f4f6fb;
    --yts-border: #e5e8f4;
}

body.yt-site {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Segoe UI', Arial, sans-serif;
    color: var(--yts-text);
    background: #fff;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
body.yt-site main { flex: 1; }

/* ---------- 导航 ---------- */
.yt-site-nav {
    background: rgba(255, 255, 255, .96);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--yts-border);
}
.yt-site-nav .navbar-brand {
    color: var(--yts-primary);
    letter-spacing: .5px;
}
.yt-site-nav .nav-link {
    color: var(--yts-text);
    font-weight: 500;
}
.yt-site-nav .nav-link.active,
.yt-site-nav .nav-link:hover {
    color: var(--yts-accent);
}
.btn-yt-accent {
    background: var(--yts-accent);
    border-color: var(--yts-accent);
    color: #fff;
}
.btn-yt-accent:hover, .btn-yt-accent:focus {
    background: var(--yts-accent-dark);
    border-color: var(--yts-accent-dark);
    color: #fff;
}
.btn-yt-primary {
    background: var(--yts-accent);
    border-color: var(--yts-accent);
    color: #fff;
    font-weight: 700;
    font-size: 1.05rem;
    padding: 0.65rem 2.25rem;
    box-shadow: 0 4px 14px rgba(79, 110, 242, 0.35);
}
.btn-yt-primary:hover, .btn-yt-primary:focus {
    background: var(--yts-accent-dark);
    border-color: var(--yts-accent-dark);
    color: #fff;
    box-shadow: 0 6px 18px rgba(79, 110, 242, 0.45);
}

/* ---------- 页头横幅 ---------- */
.yt-page-hero {
    background: linear-gradient(135deg, #232946 0%, #3d56c9 100%);
    color: #fff;
    padding: 3rem 0 3.25rem;
}
.yt-page-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: .5rem;
}
.yt-page-sub {
    color: rgba(255, 255, 255, .78);
    margin-bottom: 0;
    max-width: 640px;
}

/* ---------- 分类筛选 ---------- */
.yt-cat-pills {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
}
.yt-cat-pill {
    display: inline-block;
    padding: .42rem 1.1rem;
    border-radius: 2rem;
    border: 1px solid var(--yts-border);
    color: var(--yts-text);
    text-decoration: none;
    font-size: .93rem;
    transition: all .15s ease;
}
.yt-cat-pill:hover { border-color: var(--yts-accent); color: var(--yts-accent); }
.yt-cat-pill.active {
    background: var(--yts-accent);
    border-color: var(--yts-accent);
    color: #fff;
}

/* ---------- 产品卡片 ---------- */
.yt-product-card {
    border: 1px solid var(--yts-border);
    border-radius: .9rem;
    overflow: hidden;
    text-decoration: none;
    color: var(--yts-text);
    transition: transform .18s ease, box-shadow .18s ease;
}
.yt-product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 28px rgba(35, 41, 70, .12);
    color: var(--yts-text);
}
.yt-product-cover {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--yts-bg-soft);
}
.yt-product-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.yt-product-name {
    font-size: 1.05rem;
    font-weight: 700;
    margin: 0;
}
.yt-product-subtitle {
    color: var(--yts-accent);
    font-size: .88rem;
    margin: .4rem 0 .35rem;
}
.yt-product-summary {
    color: var(--yts-muted);
    font-size: .88rem;
    margin-bottom: .4rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.yt-cat-badge {
    background: var(--yts-bg-soft);
    color: var(--yts-muted);
    font-weight: 500;
    flex: 0 0 auto;
}

/* ---------- I18N-2 未翻译标识（§7.4：低调中性色，非警示色） ---------- */
.yt-untranslated {
    display: inline-block;
    vertical-align: middle;
    margin-inline-start: .4rem;
    padding: .05rem .5rem;
    border-radius: 1rem;
    font-size: .68rem;
    font-weight: 400;
    line-height: 1.5;
    background: var(--yts-bg-soft);
    color: var(--yts-muted);
    opacity: .85;
    white-space: nowrap;
    cursor: help;
}

/* ---------- 标签 ---------- */
.yt-tag-row { display: flex; flex-wrap: wrap; gap: .4rem; }
.yt-tag {
    display: inline-block;
    padding: .18rem .65rem;
    border-radius: 1rem;
    background: var(--yts-bg-soft);
    color: var(--yts-muted);
    font-size: .78rem;
}

/* ---------- 导航搜索图标（N1 全站搜索，P4） ---------- */
.yt-nav-search-icon { width: 18px; height: 18px; vertical-align: -3px; }

/* ---------- 空状态 ---------- */
.yt-empty-state {
    text-align: center;
    padding: 4rem 1rem;
    color: var(--yts-muted);
    border: 1px dashed var(--yts-border);
    border-radius: .9rem;
}

/* ---------- 详情页 ---------- */
.yt-preview-banner {
    background: #d99a2b;
    color: #fff;
    text-align: center;
    padding: .65rem 1rem;
    font-size: .92rem;
    font-weight: 500;
}
.yt-detail-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--yts-primary);
}
.yt-detail-subtitle {
    color: var(--yts-accent);
    font-size: 1.05rem;
    margin: .5rem 0 0;
}
.yt-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: .8rem;
}
.yt-badge-unpublished { background: #d99a2b; }
.yt-detail-cover {
    border-radius: .9rem;
    overflow: hidden;
    margin: 0;
}
.yt-detail-cover img {
    width: 100%;
    max-height: 460px;
    object-fit: cover;
    display: block;
}
.yt-summary-card {
    background: var(--yts-bg-soft);
    border-radius: .9rem;
    padding: 1.25rem 1.5rem;
}
.yt-section-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--yts-primary);
    margin-bottom: 1rem;
    padding-inline-start: .7rem;
    border-inline-start: 4px solid var(--yts-accent);
}
.yt-feature-item {
    display: flex;
    align-items: flex-start;
    gap: .75rem;
    border: 1px solid var(--yts-border);
    border-radius: .7rem;
    padding: .85rem 1rem;
    font-size: .93rem;
    height: 100%;
}
.yt-feature-index {
    flex: 0 0 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    background: var(--yts-accent);
    color: #fff;
    font-size: .8rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.yt-cta-card {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    background: linear-gradient(135deg, #232946, #3d56c9);
    color: #fff;
    border-radius: .9rem;
    padding: 1.5rem 2rem;
}

/* ---------- 富文本正文 ---------- */
.yt-rich-content {
    line-height: 1.85;
    font-size: .98rem;
}
.yt-rich-content h2, .yt-rich-content h3 {
    color: var(--yts-primary);
    font-weight: 700;
    margin: 1.6rem 0 .8rem;
}
.yt-rich-content img { max-width: 100%; height: auto; border-radius: .6rem; }
.yt-rich-content a { color: var(--yts-accent); }
.yt-rich-content blockquote {
    border-inline-start: 4px solid var(--yts-accent);
    background: var(--yts-bg-soft);
    padding: .8rem 1.2rem;
    /* RTL-02 组合：圆角随行内方向镜像（起角直角、终角圆角） */
    border-start-start-radius: 0;
    border-start-end-radius: .6rem;
    border-end-end-radius: .6rem;
    border-end-start-radius: 0;
    color: var(--yts-muted);
}
.yt-rich-content table { width: 100%; border-collapse: collapse; }
.yt-rich-content th, .yt-rich-content td {
    border: 1px solid var(--yts-border);
    padding: .5rem .75rem;
}
.yt-rich-content th { background: var(--yts-bg-soft); }
.yt-rich-content pre {
    background: var(--yts-primary);
    color: #e6e9ff;
    padding: 1rem 1.25rem;
    border-radius: .6rem;
    overflow-x: auto;
}

/* ---------- 页脚 ---------- */
.yt-site-footer {
    background: var(--yts-primary);
    color: #cdd3f0;
    padding: 2.25rem 0;
    margin-top: 3rem;
}
.yt-site-footer a { color: #cdd3f0; text-decoration: none; }
.yt-site-footer a:hover { color: #fff; }

/* ---------- 错误页 ---------- */
.yt-error-code { color: #d8dcf5; }

/* ============================================================
   P6：关于我们 + 招聘模块
   ============================================================ */

/* ---------- 关于我们：数据统计与导语 ---------- */
.yt-stat-num {
    font-size: 2.1rem;
    font-weight: 700;
    color: var(--yts-accent);
    line-height: 1.1;
}
.yt-about-lead {
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--yts-text);
}

/* ---------- 联系我们：联系卡片与地图 ---------- */
.yt-contact-card {
    border: 1px solid var(--yts-border);
    border-radius: .9rem;
}
.yt-contact-card .card-header {
    background: var(--yts-bg-soft);
    border-bottom: 1px solid var(--yts-border);
    font-weight: 600;
    color: var(--yts-primary);
}
.yt-map-box {
    border: 1px solid var(--yts-border);
    border-radius: .9rem;
    overflow: hidden;
    background: var(--yts-bg-soft);
}
.yt-map-box iframe {
    width: 100%;
    height: 320px;
    border: 0;
    display: block;
}

/* ---------- 发展历程：时间线 ---------- */
.yt-timeline-year {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}
.yt-timeline-year-label {
    flex: 0 0 4.5rem;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--yts-primary);
    padding-top: .1rem;
}
.yt-timeline-items {
    flex: 1;
    border-inline-start: 2px solid var(--yts-border);
    margin-inline-start: .25rem;
}
.yt-timeline-item {
    position: relative;
    display: flex;
    gap: 1rem;
    padding: 0 0 1.4rem;
    /* RTL-03/04 组合：内容让位于行内起始侧的竖线（原 padding-left） */
    padding-inline-start: 1.25rem;
}
.yt-timeline-item:last-child { padding-bottom: .25rem; }
.yt-timeline-dot {
    position: absolute;
    inset-inline-start: -7px;
    top: .3rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--yts-accent);
    box-shadow: 0 0 0 3px rgba(79, 110, 242, .18);
}
.yt-timeline-date {
    flex: 0 0 3rem;
    color: var(--yts-accent);
    font-weight: 600;
    font-size: .9rem;
    white-space: nowrap;
}
.yt-timeline-body {
    color: var(--yts-text);
    font-size: .95rem;
    line-height: 1.75;
}

/* ---------- 组织架构：树形 ---------- */
.yt-org-tree { overflow-x: auto; }
.yt-org-node { margin-bottom: .35rem; }
.yt-org-dept {
    display: inline-block;
    background: var(--yts-bg-soft);
    border: 1px solid var(--yts-border);
    border-inline-start: 3px solid var(--yts-accent);
    border-radius: .5rem;
    padding: .5rem .9rem;
    font-weight: 600;
    color: var(--yts-primary);
}
.yt-org-person {
    color: var(--yts-muted);
    font-size: .9rem;
    padding: .25rem 0 .25rem 1rem;
}
.yt-org-person strong { color: var(--yts-text); font-weight: 600; }
.yt-org-children { margin-top: .35rem; }

/* ---------- FAQ 手风琴 ---------- */
.yt-faq-accordion .accordion-item {
    border: 1px solid var(--yts-border);
    border-radius: .7rem !important;
    overflow: hidden;
    margin-bottom: .75rem;
}
.yt-faq-accordion .accordion-button {
    font-weight: 600;
    color: var(--yts-primary);
}
.yt-faq-accordion .accordion-button:not(.collapsed) {
    background: var(--yts-bg-soft);
    color: var(--yts-accent);
    box-shadow: none;
}
.yt-faq-accordion .accordion-button:focus { box-shadow: none; }
.yt-faq-accordion .accordion-body {
    color: var(--yts-muted);
    line-height: 1.8;
    font-size: .95rem;
}

/* ---------- 职位列表与卡片 ---------- */
.yt-job-list { display: flex; flex-direction: column; gap: .9rem; }
.yt-job-card {
    display: block;
    border: 1px solid var(--yts-border);
    border-radius: .9rem;
    padding: 1.15rem 1.4rem;
    text-decoration: none;
    color: var(--yts-text);
    background: #fff;
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.yt-job-card:hover {
    transform: translateY(-3px);
    border-color: var(--yts-accent);
    box-shadow: 0 10px 24px rgba(35, 41, 70, .10);
    color: var(--yts-text);
}
.yt-job-title {
    font-size: 1.08rem;
    font-weight: 700;
    color: var(--yts-primary);
}
.yt-job-meta {
    display: flex;
    flex-wrap: wrap;
    gap: .35rem .9rem;
}
.yt-job-salary {
    color: var(--yts-accent);
    font-weight: 700;
    white-space: nowrap;
}

/* ---------- 动效偏好（C3 精神：偏好减少动画时关闭位移） ---------- */
@media (prefers-reduced-motion: reduce) {
    .yt-product-card, .yt-job-card { transition: none; }
    .yt-product-card:hover, .yt-job-card:hover { transform: none; }
}

/* ---------- I18N-4：跨页面切换过渡（§7.3，Chrome/Edge 126+；
   不支持的浏览器自然降级为普通跳转，功能无损，零 JS） ---------- */
@view-transition {
    navigation: auto;
}

/* ---------- I18N-4：阿拉伯语字体栈（§7.2，零下载系统回退链；
   base.html body 类 yt-lang-ar 控制，无 WebFont 加载成本） ---------- */
body.yt-lang-ar {
    font-family: Tahoma, 'Segoe UI', 'Geeza Pro', 'Noto Naskh Arabic UI',
                 sans-serif;
}

/* ---------- I18N-4：检测引导一次性提示条（§14-G3，低调中性色） ---------- */
.yt-lang-intro {
    font-size: .9rem;
    background: var(--yts-bg-soft);
    border-bottom: 1px solid var(--yts-border);
    color: var(--yts-muted);
}
.yt-lang-intro a { color: var(--yts-accent); }

/* ---------- I18N：语言切换器（胶囊徽章式，间距/方向用逻辑属性兼容 RTL） ---------- */
.yt-lang-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    border: 1px solid var(--yts-border);
    border-radius: 999px;
    padding: 5px 14px;
    background: #fff;
    color: var(--yts-text);
    line-height: 1.4;
    transition: border-color .12s ease, color .12s ease, background-color .12s ease;
}
.yt-site-nav .yt-lang-btn:hover,
.yt-site-nav .yt-lang-btn:focus,
.yt-site-nav .yt-lang-btn[aria-expanded="true"] {
    border-color: var(--yts-accent);
    color: var(--yts-accent);
    background: var(--yts-bg-soft);
}
.yt-lang-cur {
    font-size: .9rem;
    font-weight: 500;
    white-space: nowrap;
    max-width: 9em;
    overflow: hidden;
    text-overflow: ellipsis;
}
.yt-lang-caret { color: var(--yts-muted); flex: none; }
.yt-lang-menu {
    border: 1px solid var(--yts-border);
    border-radius: 12px;
    padding: 6px;
    box-shadow: 0 12px 32px rgba(35, 41, 70, .12);
    min-width: 232px;
}
.yt-lang-item {
    display: flex;
    align-items: center;
    gap: 9px;
    border-radius: 8px;
    padding: 8px 10px;
    color: var(--yts-text);
}
.yt-lang-item:hover,
.yt-lang-item:focus { background: var(--yts-bg-soft); color: var(--yts-text); }
.yt-lang-item.active {
    background: var(--yts-bg-soft);
    color: var(--yts-accent);
    font-weight: 500;
}
.yt-lang-flag { flex: none; }
.yt-lang-name { white-space: nowrap; }
.yt-lang-en {
    margin-inline-start: auto;
    font-size: .78rem;
    color: var(--yts-muted);
    white-space: nowrap;
}
.yt-lang-item.active .yt-lang-en { color: var(--yts-accent); }
.yt-lang-check { flex: none; color: var(--yts-accent); margin-inline-start: 4px; }