/* ================================
   产品服务详细页（services.html）样式
   ================================ */

/* ---------- 产品服务详细页 ---------- */
.service-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.service-detail:nth-child(even) .service-detail-text {
    order: 2;
}

.service-detail-text h3 {
    font-size: 1.6rem;
    color: var(--primary);
    margin-bottom: 16px;
    font-weight: 700;
}

.service-detail-text .service-num {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent);
    background: rgba(45, 143, 110, 0.1);
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.service-detail-text p {
    color: var(--text-sub);
    margin-bottom: 16px;
    line-height: 1.9;
}

.service-detail-text ul {
    margin-top: 20px;
}

.service-detail-text ul li {
    padding: 8px 0 8px 28px;
    position: relative;
    color: var(--text-main);
    font-size: 0.95rem;
}

.service-detail-text ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 14px;
    width: 16px;
    height: 2px;
    background: var(--accent);
}

.service-detail-visual {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: var(--radius-lg);
    aspect-ratio: 4 / 3;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.service-detail-visual::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -20%;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(45, 143, 110, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.service-detail-visual svg {
    width: 50%;
    height: auto;
    opacity: 0.85;
    z-index: 2;
}


/* ---------- 设备展示 ---------- */
.equipment-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.equipment-card {
    position: relative;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    transition: var(--transition);
}

.equipment-card:hover {
    box-shadow: var(--shadow-md);
}

.equipment-card .eq-icon {
    width: 36px;
    height: 36px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.equipment-card .eq-icon svg {
    width: 18px;
    height: 18px;
}

.equipment-card h4 {
    font-size: 1.05rem;
    color: var(--primary);
    margin-bottom: 8px;
}

.equipment-card p {
    font-size: 0.85rem;
    color: var(--text-sub);
    line-height: 1.7;
    margin-bottom: 12px;
}

.equipment-card .eq-count {
    position: absolute;
    top: 26px;
    right: 20px;
    padding: 0;
    background: none;
    border: none;
    font-family: 'Bahnschrift', 'DIN Alternate', 'Impact', 'Arial Black', sans-serif;
    font-size: 3.8rem;
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.02em;
    color: var(--accent);
    font-style: italic;
    opacity: 0.35;
}
.equipment-card .eq-count:empty {
    display: none;
}


/* ============================================================
   产品服务页：业务清单（左）+ 详情（右）主从结构
   ============================================================ */
.services-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 48px;
    align-items: start;
}

/* 左侧业务清单（粘性、扁平 + 橙色左边条风格） */
.service-nav {
    position: sticky;
    top: 96px;
}

.service-nav ul {
    display: flex;
    flex-direction: column;
    gap: 4px;
    list-style: none;
}

.service-nav-item {
    width: 100%;
    text-align: left;
    padding: 14px 18px;
    border: 0;
    border-left: 3px solid transparent;
    border-radius: 0;
    background: transparent;
    font-size: 0.98rem;
    font-weight: 500;
    color: var(--text-sub);
    cursor: pointer;
    font-family: inherit;
    transition: var(--transition);
}

.service-nav-item:hover {
    color: var(--primary);
    background: var(--bg-light);
}

.service-nav-item.active {
    color: var(--accent);
    border-left-color: var(--accent);
    background: var(--bg-light);
    font-weight: 700;
}

.service-nav-item .idx {
    font-size: 0.78rem;
    opacity: 0.7;
    margin-right: 10px;
}

.service-panels { min-width: 0; }
.service-panel {
    display: none;
    /* 从其它页经锚点跳入时，预留 80px 固定导航 + 间距，避免面板头被遮住 */
    scroll-margin-top: 96px;
}
.service-panel.active {
    display: block;
}

.panel-head {
    border-bottom: 1px solid var(--border);
    padding-bottom: 24px;
    margin-bottom: 28px;
}
.panel-head .p-idx {
    font-size: 0.82rem;
    font-weight: 800;
    color: var(--accent);
    letter-spacing: 0.05em;
}
.panel-head h2 {
    font-size: clamp(1.5rem, 3vw, 2.1rem);
    color: var(--primary);
    font-weight: 800;
    margin: 8px 0 14px;
}
.panel-desc {
    color: var(--text-sub);
    line-height: 1.9;
    max-width: 64ch;
}
.panel-head .tag-list {
    margin-top: 16px;
}
.cases-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}
.case-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--white);
    cursor: pointer;
    transition: var(--transition);
}
.case-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}
.case-card img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
}
.case-body { padding: 18px 20px; }
.case-name {
    font-size: 1.05rem;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 8px;
}
.case-desc {
    font-size: 0.88rem;
    color: var(--text-sub);
    line-height: 1.7;
}
.case-empty {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* 案例卡展开态 */
.case-card.expanded {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
}
.case-card:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* 行下展开的案例详情面板（cases-list 网格中横跨整行） */
.case-detail {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 24px;
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    position: relative;
    animation: fadeInUp 0.3s ease;
}
.case-detail-media img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: var(--radius);
}
.case-detail-media-empty {
    width: 100%;
    aspect-ratio: 4 / 3;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px dashed var(--text-light);
    border-radius: var(--radius);
    color: var(--text-light);
    font-size: 0.9rem;
}
.case-detail-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}
.case-meta {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px 24px;
    margin-bottom: 14px;
}
.case-meta-item {
    font-size: 0.88rem;
    color: var(--text-main);
}
.case-meta-item span {
    color: var(--text-light);
    margin-right: 8px;
}
.case-detail-summary {
    font-size: 0.92rem;
    color: var(--text-sub);
    line-height: 1.8;
}
.case-detail-close {
    position: absolute;
    top: 10px;
    right: 12px;
    width: 28px;
    height: 28px;
    border: none;
    border-radius: 50%;
    background: transparent;
    color: var(--text-light);
    font-size: 1.2rem;
    line-height: 1;
    cursor: pointer;
    transition: var(--transition);
}
.case-detail-close:hover {
    color: var(--primary);
    background: rgba(0, 0, 0, 0.05);
}

@media (max-width: 900px) {
    .services-layout { grid-template-columns: 1fr; gap: 24px; }
    .service-nav { position: static; }
    .service-nav ul { flex-direction: row; flex-wrap: wrap; gap: 8px; }
    .service-nav-item { border-left: 0; border-bottom: 3px solid transparent; }
    .service-nav-item.active { border-left: 0; border-bottom-color: var(--accent); }
}

@media (max-width: 768px) {
    .case-detail { grid-template-columns: 1fr; }
    .case-meta { grid-template-columns: 1fr; }
}