/* ============================================================
   悦享方舟 · 单页内容 v4.0
   布局：渐变页头 + 横向页内导航 + 单栏正文（取代旧的左侧文档导航）
   ============================================================ */

/* ---------- 页头 ---------- */
.yf_phead {
    position: relative;
    background: var(--yf-grad-cta);
    padding: 34px 0 32px;
    overflow: hidden;
}
.yf_phead::before {
    content: "";
    position: absolute;
    top: -180px; right: -50px;
    width: 470px; height: 470px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(70, 188, 240, .26) 0%, transparent 68%);
    pointer-events: none;
}
.yf_phead > .zh_container { position: relative; z-index: 2; }
.yf_phead .zh_breadcrumb { display: flex; color: rgba(226, 238, 252, .66); margin-bottom: 12px; }
.yf_phead .zh_breadcrumb a { color: rgba(226, 238, 252, .82); }
.yf_phead .zh_breadcrumb a:hover { color: #fff; }
.yf_phead .zh_breadcrumb i { color: rgba(226, 238, 252, .45); }
.yf_phead .zh_crumb_current { color: #fff; }
.yf_phead_title {
    font-size: clamp(24px, 3vw, 32px);
    font-weight: 800;
    color: #fff;
    margin: 0 0 8px;
    letter-spacing: .5px;
}
.yf_phead_desc { font-size: 14px; color: rgba(226, 238, 252, .78); margin: 0; max-width: 760px; }

/* ---------- 页内导航 ---------- */
.yf_pnav { background: #fff; border-bottom: 1px solid var(--yf-border); }
.yf_pnav_inner { display: flex; flex-wrap: wrap; gap: 10px; padding-top: 14px; padding-bottom: 14px; }
.yf_pnav_inner a {
    display: inline-flex;
    align-items: center;
    height: 36px;
    padding: 0 20px;
    border-radius: var(--yf-radius-pill);
    border: 1px solid var(--yf-border);
    background: var(--yf-bg);
    color: var(--yf-text-body);
    font-size: 14px;
    transition: all .22s ease;
}
.yf_pnav_inner a:hover { color: var(--yf-cyan-deep); border-color: var(--yf-cyan); background: var(--yf-cyan-soft); }
.yf_pnav_inner a.yf_on {
    color: #fff; font-weight: 600;
    background: var(--yf-grad-cyan);
    border-color: transparent;
    box-shadow: 0 6px 16px rgba(22, 162, 224, .28);
}

/* ---------- 正文 ---------- */
.yf_pbody { padding: 36px 0 60px; }
.yf_pwrap { max-width: 940px; }

.yf_particle {
    background: #fff;
    border: 1px solid var(--yf-border);
    border-radius: var(--yf-radius-xl);
    padding: 30px 36px 34px;
}
.yf_pmeta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 22px;
    padding-bottom: 18px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--yf-border);
    font-size: 12.5px;
    color: var(--yf-text-muted);
}
.yf_pmeta span { display: inline-flex; align-items: center; gap: 6px; }
.yf_pmeta i { color: var(--yf-cyan); font-size: 11.5px; }

.yf_pcontent { font-size: 15px; line-height: 2.05; color: var(--yf-text-body); }
.yf_pcontent > *:first-child { margin-top: 0; }
.yf_pcontent > *:last-child { margin-bottom: 0; }
.yf_pcontent p { margin: 0 0 16px; }
.yf_pcontent h1, .yf_pcontent h2, .yf_pcontent h3, .yf_pcontent h4 {
    position: relative;
    margin: 32px 0 14px;
    padding-left: 15px;
    font-size: 17px;
    font-weight: 700;
    color: var(--yf-text);
    line-height: 1.6;
}
.yf_pcontent h1 { font-size: 20px; }
.yf_pcontent h2 { font-size: 18px; }
.yf_pcontent h1::before, .yf_pcontent h2::before,
.yf_pcontent h3::before, .yf_pcontent h4::before {
    content: "";
    position: absolute;
    left: 0; top: 50%;
    transform: translateY(-50%);
    width: 4px; height: 17px;
    border-radius: 2px;
    background: var(--yf-grad-line);
}
.yf_pcontent ul, .yf_pcontent ol { margin: 0 0 16px; padding-left: 4px; list-style: none; counter-reset: yfpli; }
.yf_pcontent li { position: relative; padding-left: 24px; margin-bottom: 9px; line-height: 1.95; }
.yf_pcontent ul > li::before {
    content: "";
    position: absolute;
    left: 6px; top: 14px;
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--yf-cyan);
}
.yf_pcontent ol > li { counter-increment: yfpli; }
.yf_pcontent ol > li::before {
    content: counter(yfpli);
    position: absolute;
    left: 0; top: 5px;
    width: 18px; height: 18px;
    border-radius: 6px;
    background: var(--yf-cyan-soft);
    color: var(--yf-cyan-deep);
    font-size: 11px; font-weight: 700;
    display: inline-flex; align-items: center; justify-content: center;
}
.yf_pcontent img { max-width: 100%; height: auto; border-radius: var(--yf-radius); margin: 8px 0; }
.yf_pcontent strong { color: var(--yf-text); font-weight: 700; }
.yf_pcontent a { color: var(--yf-cyan-deep); text-decoration: underline; text-underline-offset: 3px; }
.yf_pcontent blockquote {
    margin: 0 0 16px;
    padding: 14px 20px;
    background: var(--yf-bg);
    border-left: 3px solid var(--yf-cyan);
    border-radius: 0 var(--yf-radius) var(--yf-radius) 0;
    color: var(--yf-text-muted);
}
.yf_pcontent table { width: 100%; border-collapse: collapse; margin: 0 0 16px; font-size: 14px; }
.yf_pcontent th, .yf_pcontent td { border: 1px solid var(--yf-border); padding: 10px 14px; text-align: left; }
.yf_pcontent th { background: var(--yf-bg); font-weight: 700; color: var(--yf-text); }

/* ---------- 联系条 ---------- */
.yf_pcontact {
    margin-top: 24px;
    padding: 24px 30px 26px;
    background: #fff;
    border: 1px solid var(--yf-border);
    border-radius: var(--yf-radius-xl);
}
.yf_pcontact h3 {
    display: flex; align-items: center; gap: 10px;
    margin: 0 0 20px;
    font-size: 16px; font-weight: 700; color: var(--yf-text);
}
.yf_pcontact h3 i { color: var(--yf-cyan); font-size: 15px; }
.yf_pcontact_grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}
.yf_pcontact_item {
    display: flex;
    align-items: center;
    gap: 13px;
    padding: 13px 16px;
    background: var(--yf-bg);
    border-radius: var(--yf-radius);
    min-width: 0;
    transition: all .22s ease;
}
a.yf_pcontact_item:hover { background: var(--yf-cyan-soft); }
.yf_pcontact_icon {
    width: 38px; height: 38px;
    border-radius: 12px;
    flex-shrink: 0;
    background: #fff;
    border: 1px solid var(--yf-border);
    color: var(--yf-cyan-deep);
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 14px;
}
.yf_pcontact_item > span:last-child { display: flex; flex-direction: column; min-width: 0; }
.yf_pcontact_item em { font-style: normal; font-size: 11.5px; color: var(--yf-text-muted); margin-bottom: 2px; }
.yf_pcontact_item strong {
    font-size: 14.5px; font-weight: 700; color: var(--yf-text);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 768px) {
    .yf_phead { padding: 26px 0 24px; }
    .yf_pnav_inner a { height: 32px; padding: 0 15px; font-size: 13px; }
    .yf_pbody { padding: 24px 0 44px; }
    .yf_particle { padding: 22px 20px 24px; }
    .yf_pcontent { font-size: 14.5px; }
    .yf_pcontact { padding: 20px 20px 22px; }
    .yf_pcontact_grid { grid-template-columns: 1fr; }
}