/* ========================================
   产品详情页 v6 — 统一设计风格
   令牌: --primary-color #165DFF / --secondary-color #FFD700
   ======================================== */

/* ---------- 产品主体区 ---------- */
.pd-hero {
    padding: var(--space-3xl, 4rem) 0 var(--space-2xl, 3rem);
    background: linear-gradient(180deg, var(--bg-white, #fff) 0%, var(--bg-light, #f7fafc) 100%);
}
.pd-hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl, 4rem);
    align-items: start;
}

/* ---------- 左侧分类菜单布局 ---------- */
.pd-layout {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    gap: var(--space-2xl, 3rem);
    align-items: start;
}
/* ---------- 图库 ---------- */
.pd-main-img-wrap {
    position: relative;
    background: var(--bg-white, #fff);
    border: 1px solid var(--border-light, #e2e8f0);
    border-radius: var(--radius-xl, 16px);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    aspect-ratio: 4 / 3;
    cursor: zoom-in;
}
.pd-main-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: var(--space-xl, 2rem);
    display: block;
    transition: transform 0.5s ease;
}
.pd-main-img-wrap:hover img { transform: scale(1.03); }
.pd-img-badge {
    position: absolute;
    top: var(--space-lg, 1.5rem);
    left: var(--space-lg, 1.5rem);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: linear-gradient(135deg, var(--secondary-color, #FFD700), #ffb800);
    color: #5d4300;
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: var(--radius-full, 9999px);
    box-shadow: var(--shadow-md);
}
.pd-zoom-btn {
    position: absolute;
    right: var(--space-lg, 1.5rem);
    bottom: var(--space-lg, 1.5rem);
    width: 44px;
    height: 44px;
    border: none;
    border-radius: var(--radius-full, 9999px);
    background: rgba(29, 33, 41, 0.7);
    color: #fff;
    font-size: 1rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast, 150ms ease);
}
.pd-zoom-btn:hover, .pd-zoom-btn:focus-visible { background: var(--primary-color, #165DFF); outline: none; }
.pd-thumbs {
    display: flex;
    gap: var(--space-md, 1rem);
    margin-top: var(--space-lg, 1.5rem);
    flex-wrap: wrap;
}
.pd-thumb {
    width: 76px;
    height: 76px;
    padding: 6px;
    background: var(--bg-white, #fff);
    border: 2px solid var(--border-light, #e2e8f0);
    border-radius: var(--radius-lg, 12px);
    cursor: pointer;
    transition: border-color var(--transition-fast, 150ms ease), box-shadow var(--transition-fast, 150ms ease);
}
.pd-thumb img { width: 100%; height: 100%; object-fit: contain; display: block; }
.pd-thumb:hover { border-color: var(--primary-light, #EBF2FF); }
.pd-thumb.active {
    border-color: var(--primary-color, #165DFF);
    box-shadow: 0 0 0 3px var(--primary-light, #EBF2FF);
}

/* ---------- 信息面板 ---------- */
.pd-cat-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: var(--primary-light, #EBF2FF);
    color: var(--primary-color, #165DFF);
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: var(--radius-full, 9999px);
    margin-bottom: var(--space-md, 1rem);
}
.pd-title {
    font-size: clamp(1.5rem, 2.6vw, 2.1rem);
    font-weight: 700;
    color: var(--text-primary, #1D2129);
    line-height: 1.3;
    margin: 0 0 var(--space-sm, 0.5rem);
}
.pd-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary, #3D4852);
    font-weight: 500;
    margin: 0 0 var(--space-sm, 0.5rem);
}
.pd-desc {
    color: var(--text-muted, #4A5568);
    line-height: 1.8;
    margin: 0 0 var(--space-xl, 2rem);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 核心参数 */
.pd-specs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md, 1rem);
    margin-bottom: var(--space-xl, 2rem);
}
.pd-spec-card {
    display: flex;
    align-items: center;
    gap: var(--space-md, 1rem);
    padding: var(--space-md, 1rem) var(--space-lg, 1.5rem);
    background: var(--bg-white, #fff);
    border: 1px solid var(--border-light, #e2e8f0);
    border-radius: var(--radius-lg, 12px);
    transition: transform var(--transition-fast, 150ms ease), box-shadow var(--transition-fast, 150ms ease);
}
.pd-spec-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.pd-spec-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light, #EBF2FF);
    color: var(--primary-color, #165DFF);
    font-size: 1.1rem;
    border-radius: var(--radius-lg, 12px);
}
.pd-spec-text { display: flex; flex-direction: column; }
.pd-spec-label { font-size: 0.78rem; color: var(--text-muted, #4A5568); }
.pd-spec-value { font-size: 1rem; font-weight: 700; color: var(--text-primary, #1D2129); }

/* 优势 */
.pd-adv { list-style: none; margin: 0 0 var(--space-lg, 1.5rem); padding: 0; }
.pd-adv li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm, 0.5rem);
    padding: 6px 0;
    color: var(--text-secondary, #3D4852);
    font-size: 0.95rem;
}
.pd-adv li i { color: var(--primary-color, #165DFF); margin-top: 3px; flex-shrink: 0; }

/* 认证 */
.pd-certs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm, 0.5rem);
    margin-bottom: var(--space-xl, 2rem);
}
.pd-cert {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border: 1px solid var(--border-light, #e2e8f0);
    border-radius: var(--radius-full, 9999px);
    font-size: 0.8rem;
    color: var(--text-secondary, #3D4852);
    background: var(--bg-white, #fff);
}
.pd-cert i { color: var(--secondary-color, #FFD700); }

/* 操作按钮 */
.pd-actions {
    display: flex;
    gap: var(--space-md, 1rem);
    flex-wrap: wrap;
    margin-bottom: var(--space-lg, 1.5rem);
}
.pd-actions .btn i { margin-right: 6px; }

/* 快捷联系 */
.pd-quick {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md, 1rem) var(--space-xl, 2rem);
    padding-top: var(--space-lg, 1.5rem);
    border-top: 1px dashed var(--border-light, #e2e8f0);
    font-size: 0.9rem;
    color: var(--text-muted, #4A5568);
}
.pd-quick i { color: var(--primary-color, #165DFF); margin-right: 4px; }

/* ---------- 选项卡区 ---------- */
.pd-tabs-section { padding: var(--space-2xl, 3rem) 0; }
.pd-tabs {
    display: flex;
    gap: var(--space-sm, 0.5rem);
    border-bottom: 2px solid var(--border-light, #e2e8f0);
    margin-bottom: var(--space-xl, 2rem);
    overflow-x: auto;
    scrollbar-width: none;
}
.pd-tabs::-webkit-scrollbar { display: none; }
.pd-tab-btn {
    position: relative;
    padding: var(--space-md, 1rem) var(--space-xl, 2rem);
    background: none;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-muted, #4A5568);
    cursor: pointer;
    white-space: nowrap;
    transition: color var(--transition-fast, 150ms ease);
}
.pd-tab-btn i { margin-right: 6px; }
.pd-tab-btn::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -2px;
    height: 2px;
    background: var(--primary-color, #165DFF);
    transform: scaleX(0);
    transition: transform var(--transition-fast, 150ms ease);
}
.pd-tab-btn:hover { color: var(--primary-color, #165DFF); }
.pd-tab-btn.active { color: var(--primary-color, #165DFF); }
.pd-tab-btn.active::after { transform: scaleX(1); }
.pd-tab-panel { display: none; }
.pd-tab-panel.active { display: block; animation: pd-fadein 0.35s ease; }
@keyframes pd-fadein {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 详情富文本 */
.pd-content-body {
    background: var(--bg-white, #fff);
    border: 1px solid var(--border-light, #e2e8f0);
    border-radius: var(--radius-xl, 16px);
    padding: var(--space-2xl, 3rem);
    color: var(--text-secondary, #3D4852);
    line-height: 1.9;
    font-size: 0.98rem;
}
.pd-content-body h3 {
    color: var(--text-primary, #1D2129);
    font-size: 1.15rem;
    margin: var(--space-xl, 2rem) 0 var(--space-sm, 0.5rem);
    padding-left: var(--space-md, 1rem);
    border-left: 4px solid var(--primary-color, #165DFF);
}
.pd-content-body h3:first-child { margin-top: 0; }
.pd-content-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg, 12px);
    margin: var(--space-md, 1rem) auto;
    display: block;
    box-shadow: var(--shadow-sm);
}
.pd-content-body table { width: 100%; border-collapse: collapse; margin: var(--space-md, 1rem) 0; }
.pd-content-body table td, .pd-content-body table th {
    border: 1px solid var(--border-light, #e2e8f0);
    padding: 10px 14px;
    font-size: 0.92rem;
}
.pd-content-body p { margin: 0 0 var(--space-md, 1rem); }
.pd-content-body ul, .pd-content-body ol { margin: 0 0 var(--space-md, 1rem); padding-left: 1.4em; }
.pd-content-body ul { list-style: disc; }
.pd-content-body ol { list-style: decimal; }
.pd-content-body ul li, .pd-content-body ol li { margin-bottom: 4px; }

/* 技术参数: 表格 */
.pd-table-wrap {
    background: var(--bg-white, #fff);
    border: 1px solid var(--border-light, #e2e8f0);
    border-radius: var(--radius-xl, 16px);
    overflow: hidden;
}
.pd-spec-table { width: 100%; border-collapse: collapse; }
.pd-spec-table th, .pd-spec-table td {
    padding: 14px var(--space-lg, 1.5rem);
    text-align: left;
    font-size: 0.95rem;
    border-bottom: 1px solid var(--border-light, #e2e8f0);
}
.pd-spec-table th {
    width: 180px;
    background: var(--bg-light, #f7fafc);
    color: var(--text-secondary, #3D4852);
    font-weight: 600;
}
.pd-spec-table td { color: var(--text-primary, #1D2129); font-weight: 500; }
.pd-spec-table tr:last-child th, .pd-spec-table tr:last-child td { border-bottom: none; }

/* 技术参数: 富文本组 */
.pd-spec-groups { display: grid; gap: var(--space-lg, 1.5rem); }
.pd-spec-group {
    background: var(--bg-white, #fff);
    border: 1px solid var(--border-light, #e2e8f0);
    border-radius: var(--radius-xl, 16px);
    padding: var(--space-xl, 2rem);
}
.pd-spec-group h3 {
    display: flex;
    align-items: center;
    gap: var(--space-sm, 0.5rem);
    font-size: 1.1rem;
    color: var(--text-primary, #1D2129);
    margin: 0 0 var(--space-md, 1rem);
    padding-bottom: var(--space-md, 1rem);
    border-bottom: 1px solid var(--border-light, #e2e8f0);
}
.pd-spec-group h3 i { color: var(--primary-color, #165DFF); }
.pd-rich { color: var(--text-secondary, #3D4852); line-height: 1.8; font-size: 0.95rem; }
.pd-rich table { width: 100%; border-collapse: collapse; }
.pd-rich table td, .pd-rich table th { border: 1px solid var(--border-light, #e2e8f0); padding: 8px 12px; font-size: 0.9rem; }
.pd-rich img { max-width: 100%; height: auto; }
.pd-rich ul { list-style: disc; padding-left: 1.4em; }
.pd-rich ol { list-style: decimal; padding-left: 1.4em; }

/* 应用场景 */
.pd-apps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg, 1.5rem);
}
.pd-app-card {
    background: var(--bg-white, #fff);
    border: 1px solid var(--border-light, #e2e8f0);
    border-radius: var(--radius-xl, 16px);
    padding: var(--space-xl, 2rem);
    text-align: center;
    transition: transform var(--transition-fast, 150ms ease), box-shadow var(--transition-fast, 150ms ease);
}
.pd-app-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.pd-app-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-md, 1rem);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light, #EBF2FF);
    color: var(--primary-color, #165DFF);
    font-size: 1.4rem;
    border-radius: var(--radius-full, 9999px);
}
.pd-app-card h3 { color: var(--text-primary, #1D2129); font-size: 1rem; margin: 0 0 var(--space-sm, 0.5rem); }
.pd-app-card p { color: var(--text-muted, #4A5568); font-size: 0.88rem; line-height: 1.7; margin: 0; }

/* ---------- 相关产品 ---------- */
.pd-related {
    padding: var(--space-2xl, 3rem) 0 var(--space-3xl, 4rem);
    background: var(--bg-light, #f7fafc);
}
.pd-section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: var(--space-lg, 1.5rem);
    margin-bottom: var(--space-xl, 2rem);
}
.pd-section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary-color, #165DFF);
    letter-spacing: 2px;
    margin-bottom: 4px;
}
.pd-section-head h2 {
    font-size: clamp(1.4rem, 2.4vw, 1.8rem);
    font-weight: 700;
    color: var(--text-primary, #1D2129);
    margin: 0;
}
.pd-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary-color, #165DFF);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    white-space: nowrap;
    transition: gap var(--transition-fast, 150ms ease);
}
.pd-more:hover { gap: 10px; }
.pd-related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg, 1.5rem);
}
.pd-rel-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-white, #fff);
    border: 1px solid var(--border-light, #e2e8f0);
    border-radius: var(--radius-xl, 16px);
    overflow: hidden;
    text-decoration: none;
    transition: transform var(--transition-fast, 150ms ease), box-shadow var(--transition-fast, 150ms ease);
}
.pd-rel-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.pd-rel-img {
    aspect-ratio: 4 / 3;
    background: var(--bg-gray, #edf2f7);
    overflow: hidden;
}
.pd-rel-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.pd-rel-card:hover .pd-rel-img img { transform: scale(1.06); }
.pd-rel-body { padding: var(--space-lg, 1.5rem); display: flex; flex-direction: column; flex: 1; }
.pd-rel-cat {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary-color, #165DFF);
    margin-bottom: 6px;
}
.pd-rel-body h3 {
    font-size: 0.98rem;
    font-weight: 600;
    color: var(--text-primary, #1D2129);
    line-height: 1.5;
    margin: 0 0 var(--space-sm, 0.5rem);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.pd-rel-body p {
    font-size: 0.85rem;
    color: var(--text-muted, #4A5568);
    line-height: 1.6;
    margin: 0 0 var(--space-md, 1rem);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.pd-rel-link {
    margin-top: auto;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-color, #165DFF);
}

/* ---------- CTA 转化区 ---------- */
.pd-cta { padding: 0 0 var(--space-3xl, 4rem); background: var(--bg-light, #f7fafc); }
.pd-cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-xl, 2rem);
    padding: var(--space-2xl, 3rem);
    background: linear-gradient(135deg, rgba(0, 82, 204, 0.95) 0%, rgba(0, 61, 153, 0.9) 100%);
    border-radius: var(--radius-xl, 16px);
    box-shadow: var(--shadow-lg);
}
.pd-cta-text h2 { color: #fff; font-size: clamp(1.3rem, 2.2vw, 1.7rem); margin: 0 0 var(--space-sm, 0.5rem); }
.pd-cta-text p { color: rgba(255, 255, 255, 0.85); margin: 0; }
.pd-cta-btns { display: flex; gap: var(--space-md, 1rem); flex-wrap: wrap; flex-shrink: 0; }
.pd-cta-btns .btn i { margin-right: 6px; }
.btn-white {
    background: #fff;
    color: var(--primary-color, #165DFF);
}
.btn-white:hover { background: var(--primary-light, #EBF2FF); }
.btn-outline-white {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.6);
}
.btn-outline-white:hover { border-color: #fff; background: rgba(255, 255, 255, 0.1); }

/* ---------- 图片灯箱 ---------- */
.pd-modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.88);
    backdrop-filter: blur(4px);
    animation: pd-fadein 0.25s ease;
}
.pd-modal[hidden] { display: none; }
.pd-modal img {
    max-width: min(90vw, 1100px);
    max-height: 82vh;
    object-fit: contain;
    border-radius: var(--radius-md, 8px);
    box-shadow: var(--shadow-xl);
}
.pd-modal-close {
    position: absolute;
    top: var(--space-xl, 2rem);
    right: var(--space-xl, 2rem);
    width: 46px;
    height: 46px;
    border: none;
    border-radius: var(--radius-full, 9999px);
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background var(--transition-fast, 150ms ease);
}
.pd-modal-close:hover { background: rgba(255, 255, 255, 0.28); }
.pd-modal-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    border: none;
    border-radius: var(--radius-full, 9999px);
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    font-size: 1rem;
    cursor: pointer;
    transition: background var(--transition-fast, 150ms ease);
}
.pd-modal-nav:hover { background: rgba(255, 255, 255, 0.28); }
.pd-modal-prev { left: var(--space-xl, 2rem); }
.pd-modal-next { right: var(--space-xl, 2rem); }
.pd-modal-caption {
    position: absolute;
    bottom: var(--space-xl, 2rem);
    left: 50%;
    transform: translateX(-50%);
    max-width: 80vw;
    margin: 0;
    padding: 8px 18px;
    background: rgba(0, 0, 0, 0.5);
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9rem;
    border-radius: var(--radius-full, 9999px);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.pd-modal[data-single] .pd-modal-nav { display: none; }

/* ---------- 滚动揭示动画（自包含，不依赖 main.js） ---------- */
html.js .pd-reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
html.js .pd-reveal.pd-in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 991px) {
    .pd-layout { grid-template-columns: 1fr; }
    .pd-hero-grid { grid-template-columns: 1fr; gap: var(--space-2xl, 3rem); order: -1; }
    .pd-layout > aside.detail-sidebar { order: 2; }
    .pd-apps, .pd-related-grid { grid-template-columns: repeat(2, 1fr); }
    .pd-cta-inner { flex-direction: column; text-align: center; }
    .pd-cta-btns { justify-content: center; }
    .pd-content-body { padding: var(--space-xl, 2rem); }
}
@media (max-width: 767px) {
    .pd-hero { padding: var(--space-xl, 2rem) 0; }
    .pd-specs { grid-template-columns: 1fr; }
    .pd-spec-table th { width: 110px; padding: 10px 12px; font-size: 0.85rem; }
    .pd-spec-table td { padding: 10px 12px; font-size: 0.88rem; }
    .pd-actions .btn { flex: 1; justify-content: center; }
    .pd-modal-prev { left: var(--space-sm, 0.5rem); }
    .pd-modal-next { right: var(--space-sm, 0.5rem); }
    .pd-modal-nav { width: 40px; height: 40px; }
}
@media (max-width: 479px) {
    .pd-apps, .pd-related-grid { grid-template-columns: 1fr; }
    .pd-quick { gap: var(--space-sm, 0.5rem) var(--space-lg, 1.5rem); font-size: 0.85rem; }
}

/* ---------- 降低动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
    html.js .pd-reveal { opacity: 1; transform: none; transition: none; }
    .pd-tab-panel.active { animation: none; }
    .pd-main-img-wrap img, .pd-rel-img img { transition: none; }
    .pd-spec-card:hover, .pd-app-card:hover, .pd-rel-card:hover { transform: none; }
}