/* 内页专用样式（首页仍用 style.css） */

.page-hero {
  position: relative;
  background-color: var(--color-ink);
  background-size: cover;
  background-position: center;
  color: #fff;
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(9,26,42,.93) 0%, rgba(9,26,42,.78) 55%, rgba(9,26,42,.45) 100%);
}
.page-hero-inner { position: relative; z-index: 2; padding: 86px 24px 74px; max-width: var(--container); margin: 0 auto; }
.page-hero h1 { color: #fff; font-size: 38px; margin-bottom: 14px; max-width: 780px; }
.page-hero p { color: rgba(255,255,255,.84); font-size: 16.5px; max-width: 720px; margin: 0; }
.breadcrumb {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px 24px 0;
  font-size: 13px;
  color: rgba(255,255,255,.62);
}
.breadcrumb a { color: rgba(255,255,255,.82); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb span { margin: 0 6px; }

/* 目录型布局：侧栏 + 主区 */
.catalog { display: grid; grid-template-columns: 250px 1fr; gap: 40px; align-items: start; }
.side-nav { position: sticky; top: 96px; background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-md); padding: 18px; }
.side-nav h2 { font-size: 14px; letter-spacing: 1px; text-transform: uppercase; color: var(--color-muted); margin-bottom: 12px; }
.side-nav ul { margin: 0; padding: 0; list-style: none; }
.side-nav li { margin-bottom: 4px; }
.side-nav a { display: block; padding: 9px 12px; font-size: 14.5px; border-radius: var(--radius-sm); color: var(--color-body); }
.side-nav a:hover { background: var(--color-bg-soft); color: var(--color-primary); }
.side-nav a.is-active { background: rgba(237,117,30,.1); color: var(--color-primary); font-weight: 700; }
.side-card { margin-top: 18px; padding: 18px; border-radius: var(--radius-md); background: var(--color-ink); color: rgba(255,255,255,.82); font-size: 13.5px; }
.side-card strong { display: block; color: #fff; font-size: 15px; margin-bottom: 6px; }
.side-card a { display: inline-block; margin-top: 10px; color: var(--color-primary); font-weight: 600; }

/* 产品卡片 */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.prod-card { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-md); overflow: hidden; transition: box-shadow .22s, transform .22s, border-color .22s; }
.prod-card:hover { box-shadow: var(--shadow-lift); transform: translateY(-4px); border-color: rgba(237,117,30,.45); }
.prod-card figure { margin: 0; aspect-ratio: 16 / 10; overflow: hidden; background: var(--color-bg-soft); }
.prod-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.prod-card:hover img { transform: scale(1.04); }
.prod-card-body { padding: 18px 18px 20px; display: flex; flex-direction: column; flex: 1; }
.prod-card-body h3 { font-size: 17px; margin-bottom: 6px; }
.prod-card-body p { font-size: 13.5px; color: var(--color-muted); margin: 0 0 14px; }
.prod-meta { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-top: 12px; border-top: 1px dashed var(--color-line); font-size: 13px; }
.prod-meta b { color: var(--color-primary); font-family: var(--font-en); }
.prod-meta span { color: var(--color-muted); }

/* 参数表 */
.table-wrap { overflow-x: auto; border: 1px solid var(--color-line); border-radius: var(--radius-md); background: #fff; }
table.spec { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 640px; }
table.spec caption { caption-side: top; text-align: left; padding: 14px 18px; font-size: 13px; color: var(--color-muted); border-bottom: 1px solid var(--color-line); }
table.spec th, table.spec td { padding: 13px 18px; text-align: left; border-bottom: 1px solid var(--color-line); vertical-align: top; }
table.spec thead th { background: var(--color-bg-soft); color: var(--color-ink); font-size: 13px; letter-spacing: .5px; white-space: nowrap; }
table.spec tbody tr:last-child th, table.spec tbody tr:last-child td { border-bottom: 0; }
table.spec tbody th { color: var(--color-ink); font-weight: 600; width: 22%; }
table.spec tbody tr:nth-child(even) td { background: #FCFCFD; }

/* 定义块 */
.lede { max-width: 860px; margin-bottom: 32px; }
.lede p { font-size: 16.5px; }
.lede strong { color: var(--color-ink); }

/* 步骤 */
.steps { counter-reset: s; margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.steps li { position: relative; padding: 22px 20px 20px; background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-md); counter-increment: s; }
.steps li::before { content: counter(s, decimal-leading-zero); display: block; font-family: var(--font-en); font-size: 13px; font-weight: 800; color: var(--color-primary); margin-bottom: 8px; }
.steps li h3 { font-size: 16px; margin-bottom: 6px; }
.steps li p { font-size: 13.5px; color: var(--color-muted); margin: 0; }

/* 详情页 b2b-quote 布局 */
.detail { display: grid; grid-template-columns: 1.15fr .85fr; gap: 44px; align-items: start; }
.detail-media { border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--color-line); margin-bottom: 22px; }
.detail-media img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.quote-card { position: sticky; top: 96px; background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-md); box-shadow: var(--shadow-card); padding: 26px; }
.quote-card h2 { font-size: 20px; margin-bottom: 6px; }
.quote-card .form-note { margin-bottom: 18px; }
.quote-points { margin: 18px 0 0; padding: 0; list-style: none; font-size: 13.5px; color: var(--color-muted); }
.quote-points li { margin-bottom: 8px; padding-left: 18px; position: relative; }
.quote-points li::before { content: "•"; position: absolute; left: 4px; color: var(--color-primary); }

/* 文章 */
.article-layout { display: grid; grid-template-columns: 1fr 300px; gap: 44px; align-items: start; }
.article-body h2 { font-size: 24px; margin-top: 36px; }
.article-body h3 { font-size: 18px; margin-top: 26px; }
.article-body ul, .article-body ol { padding-left: 22px; }
.article-body li { margin-bottom: 8px; }
.article-body table.spec { min-width: 0; }
.article-meta { font-size: 13px; color: var(--color-muted); margin-bottom: 24px; }
.article-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.article-card { background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-md); overflow: hidden; display: flex; flex-direction: column; }
.article-card figure { margin: 0; aspect-ratio: 16 / 9; overflow: hidden; }
.article-card img { width: 100%; height: 100%; object-fit: cover; }
.article-card div { padding: 18px 20px 22px; }
.article-card h3 { font-size: 17px; margin-bottom: 8px; }
.article-card p { font-size: 13.5px; color: var(--color-muted); margin: 0; }

/* 资质网格 */
.cert-wall { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.cert-item { background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-md); overflow: hidden; }
.cert-item figure { margin: 0; aspect-ratio: 4 / 3; overflow: hidden; background: var(--color-bg-soft); }
.cert-item img { width: 100%; height: 100%; object-fit: cover; }
.cert-item div { padding: 16px 18px 20px; }
.cert-item strong { display: block; color: var(--color-ink); font-size: 15px; }
.cert-item span { display: block; font-size: 13px; color: var(--color-muted); margin-top: 4px; }

/* 联系页面 */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 44px; align-items: start; }
.info-list { margin: 0; padding: 0; list-style: none; }
.info-list li { padding: 16px 0; border-bottom: 1px solid var(--color-line); font-size: 15px; }
.info-list li b { display: block; font-size: 12px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--color-primary); margin-bottom: 3px; }
.info-list a { color: var(--color-ink); border-bottom: 1px dashed var(--color-line); }
.map-box { margin-top: 24px; border: 1px solid var(--color-line); border-radius: var(--radius-md); padding: 22px; background: var(--color-bg-soft); font-size: 14px; color: var(--color-muted); }

/* 时间轴 */
.timeline { margin: 0; padding: 0 0 0 26px; list-style: none; border-left: 2px solid var(--color-line); }
.timeline li { position: relative; padding-bottom: 26px; }
.timeline li::before { content: ""; position: absolute; left: -33px; top: 7px; width: 12px; height: 12px; border-radius: 50%; background: var(--color-primary); box-shadow: 0 0 0 4px rgba(237,117,30,.16); }
.timeline strong { display: block; font-family: var(--font-en); color: var(--color-primary); font-size: 15px; }
.timeline p { margin: 4px 0 0; font-size: 14.5px; }

.lang-note { font-size: 13px; color: var(--color-muted); }

@media (max-width: 1080px) {
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .detail, .contact-grid, .article-layout { grid-template-columns: 1fr; gap: 32px; }
  .quote-card { position: static; }
}

@media (max-width: 900px) {
  .catalog { grid-template-columns: 1fr; }
  .side-nav { position: static; }
  .page-hero h1 { font-size: 28px; }
  .page-hero-inner { padding: 64px 24px 56px; }
  .cert-wall, .article-list { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .prod-grid, .steps { grid-template-columns: 1fr; }
}

/* 正文配图 */
.media-figure { margin: 0 0 36px; border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--color-line); background: #fff; }
.media-figure img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.media-figure figcaption { padding: 14px 18px; font-size: 13px; color: var(--color-muted); border-top: 1px solid var(--color-line); }