/* ============================================================
   先达图文 dqxd.cn — 内页样式 v5「大气商务」（2026-09-17a）
   依赖 home.css 的 v5 令牌（品牌红/油墨黑/纸白）
   类名与 v4 保持一致，内页控制器零改动
   ============================================================ */

/* ============ 内页头部横幅（品牌红渐变） ============ */
.xd-pagehead {
  position: relative; overflow: hidden; color: #fff;
  background: linear-gradient(120deg, #EB0013 0%, #A8000C 78%);
  padding: 64px 0 56px;
}
.xd-pagehead::after {
  content: ''; position: absolute; right: -110px; bottom: -150px; width: 380px; height: 380px;
  border-radius: 50%; border: 54px solid rgba(255, 255, 255, .09); pointer-events: none;
}
.xd-pagehead-in { position: relative; z-index: 2; }
.xd-pagehead h1 { font-size: clamp(28px, 3.4vw, 40px); font-weight: 900; letter-spacing: -.01em; color: #fff; }
.xd-pagehead .xd-pagehead-en { display: none; }
.xd-pagehead .xd-pagehead-desc { margin-top: 12px; color: rgba(255, 255, 255, .82); font-size: 15px; max-width: 640px; }
.xd-crumbs { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; font-size: 13px; color: rgba(255, 255, 255, .6); }
.xd-crumbs a { color: rgba(255, 255, 255, .78); }
.xd-crumbs a:hover { color: #fff; }
.xd-crumbs i { font-style: normal; opacity: .55; font-size: 11px; }
.xd-crumbs .cur { color: #fff; font-weight: 700; }

/* ============ 子导航（分类筛选） ============ */
.xd-subnav { background: var(--paper); border-bottom: 1px solid var(--line); position: sticky; top: var(--xd-header-h); z-index: 500; }
.xd-subnav-in { display: flex; gap: 8px; overflow-x: auto; padding: 12px 32px; scrollbar-width: none; }
.xd-subnav-in::-webkit-scrollbar { display: none; }
.xd-subnav li { flex-shrink: 0; }
.xd-subnav a {
  flex-shrink: 0; white-space: nowrap; padding: 7px 18px; border-radius: 999px; font-size: 13.5px; font-weight: 600;
  color: var(--mut); background: transparent; border: 1px solid var(--line);
  transition: all .18s var(--ease); display: block;
}
.xd-subnav a:hover { color: var(--red); border-color: var(--red); }
.xd-subnav li.active a { color: #fff; background: var(--red); border-color: var(--red); }

/* ============ 通用列表区 ============ */
.xd-list-wrap { padding: 56px 0 90px; background: var(--paper); }

/* 产品列表（样册网格） */
.xd-pl-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px 22px; }
.xd-empty { text-align: center; padding: 80px 20px; color: var(--mut); }
.xd-empty b { display: block; font-size: 40px; margin-bottom: 10px; color: var(--ink-faint); font-weight: 900; letter-spacing: .06em; }

/* ============ 产品详情 ============ */
.xd-pd-wrap { padding: 48px 0 90px; background: var(--paper); }
.xd-pd-hero { display: grid; grid-template-columns: minmax(0, 460px) 1fr; gap: 40px; align-items: start; background: var(--soft); border-radius: var(--r-lg); padding: 28px; }
.xd-pd-figure { position: relative; border-radius: var(--r-md); overflow: hidden; background: #EBEBE7; aspect-ratio: 4/3; }
.xd-pd-figure img { width: 100%; height: 100%; object-fit: cover; }
.xd-pd-info h1 { font-size: clamp(22px, 2.6vw, 29px); font-weight: 900; line-height: 1.35; margin-bottom: 10px; letter-spacing: -.01em; }
.xd-pd-info > p { color: var(--mut); font-size: 14.5px; }
.xd-pd-params { margin: 18px 0; border-top: 2px solid var(--ink); }
.xd-pd-params li { display: flex; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.xd-pd-params span { color: var(--mut); flex-shrink: 0; width: 76px; }
.xd-pd-params b { font-weight: 700; }
.xd-pd-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }
.xd-pd-tel { display: inline-flex; align-items: center; gap: 10px; margin-top: 20px; padding: 11px 16px; border-radius: 10px; background: var(--paper); border: 1px solid var(--line); color: var(--mut); font-size: 13.5px; }
.xd-pd-tel svg { width: 17px; height: 17px; color: var(--red); }
.xd-pd-tel b { font-size: 15.5px; color: var(--ink); font-weight: 800; font-variant-numeric: tabular-nums; }
/* 详情主体 tabs */
.xd-pd-body { margin-top: 26px; background: var(--paper); border-top: 2px solid var(--ink); }
.xd-tabs { display: flex; border-bottom: 1px solid var(--line); overflow-x: auto; }
.xd-tabs button { padding: 14px 24px; font-size: 14.5px; font-weight: 700; letter-spacing: .5px; color: var(--mut); border-bottom: 3px solid transparent; white-space: nowrap; }
.xd-tabs button.on { color: var(--red); border-bottom-color: var(--red); }
.xd-panel { display: none; padding: 26px 30px; }
.xd-panel.on { display: block; }
/* 富文本排版 */
.xd-editor { font-size: 15px; line-height: 1.95; color: var(--ink-2); }
.xd-editor p { margin: 0 0 14px; }
.xd-editor img { border-radius: 8px; margin: 10px auto; }
.xd-editor h2, .xd-editor h3 { margin: 22px 0 12px; font-weight: 800; color: var(--ink); }
.xd-editor ul { padding-left: 20px; list-style: disc; margin-bottom: 14px; }
.xd-editor ol { padding-left: 20px; list-style: decimal; margin-bottom: 14px; }
.xd-editor li { margin-bottom: 6px; }
.xd-editor table { border-collapse: collapse; width: 100%; margin: 14px 0; }
.xd-editor td, .xd-editor th { border: 1px solid var(--line); padding: 8px 12px; font-size: 14px; }
.xd-editor blockquote { border-left: 3px solid var(--red); background: var(--soft); padding: 12px 18px; border-radius: 0 8px 8px 0; margin: 14px 0; color: var(--mut); }
/* 上下篇 */
.xd-prevnext { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 26px; }
.xd-pn-link { background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 15px 19px; transition: border-color .18s var(--ease); min-width: 0; }
.xd-pn-link:hover { border-color: var(--red); }
.xd-pn-link small { display: block; font-size: 11.5px; letter-spacing: 1.5px; color: var(--ink-faint); margin-bottom: 5px; }
.xd-pn-link span { font-size: 14.5px; font-weight: 700; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.xd-pn-link.next { text-align: right; }
.xd-pn-link.disable { opacity: .5; pointer-events: none; }

/* ============ 新闻列表 ============ */
.xd-news-list { display: flex; flex-direction: column; }
.xd-news-row {
  display: grid; grid-template-columns: 300px 1fr; gap: 26px; background: var(--paper);
  border-bottom: 1px solid var(--line); padding: 24px 4px;
}
.xd-news-row img { width: 100%; height: 100%; min-height: 168px; object-fit: cover; border-radius: var(--r-md); }
.xd-news-row h2 { font-size: 18px; font-weight: 800; line-height: 1.5; margin: 6px 0 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.xd-news-row a:hover h2 { color: var(--red); }
.xd-news-row p { color: var(--mut); font-size: 13.5px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ============ 详情页双栏 ============ */
.xd-detail-layout { display: grid; grid-template-columns: 1fr 320px; gap: 28px; align-items: start; }
.xd-article { background: var(--paper); border-top: 2px solid var(--ink); padding: 32px 36px; }
.xd-article h1 { font-size: clamp(20px, 2.4vw, 26px); font-weight: 900; line-height: 1.45; letter-spacing: -.01em; }
.xd-article-meta { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; color: var(--ink-faint); font-size: 12.5px; margin: 14px 0 22px; padding-bottom: 16px; border-bottom: 1px solid var(--line); font-variant-numeric: tabular-nums; }
.xd-article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.xd-article-meta svg { width: 14px; height: 14px; color: var(--ink-faint); }
.xd-aside { display: flex; flex-direction: column; gap: 20px; position: sticky; top: calc(var(--xd-header-h) + 24px); }
.xd-aside-card { background: var(--soft); border-radius: var(--r-md); padding: 22px; }
.xd-aside-card h3 { font-size: 15px; font-weight: 800; margin-bottom: 13px; display: flex; align-items: center; gap: 8px; }
.xd-aside-card h3 small { display: none; }
.xd-aside-card h3::before { content: ''; width: 9px; height: 9px; border-radius: 2px; background: var(--red); }
.xd-aside-nav li a { display: block; padding: 8px 12px; border-radius: 7px; font-size: 13.5px; color: var(--mut); transition: all .18s; }
.xd-aside-nav li a:hover { color: var(--red); background: var(--paper); }
.xd-aside-nav li.active a { color: #fff; background: var(--red); font-weight: 700; }
.xd-aside-imgs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.xd-aside-imgs a { border-radius: 7px; overflow: hidden; aspect-ratio: 1; background: #EBEBE7; }
.xd-aside-imgs img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.xd-aside-imgs a:hover img { transform: scale(1.08); }
.xd-aside-contact p { display: flex; gap: 10px; font-size: 13px; margin-bottom: 12px; color: var(--mut); align-items: flex-start; }
.xd-aside-contact svg { width: 15px; height: 15px; color: var(--red); flex-shrink: 0; margin-top: 3px; }
.xd-aside-contact b { color: var(--ink); font-weight: 700; }

/* ============ 单页（关于/联系） ============ */
.xd-page-body { background: var(--paper); border-top: 2px solid var(--ink); padding: 40px 44px; }
.xd-about-cover { border-radius: var(--r-md); overflow: hidden; margin: 22px 0 26px; }
.xd-about-cover img { width: 100%; }
.xd-contact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin: 26px 0; }
.xd-contact-card { display: flex; gap: 14px; align-items: flex-start; padding: 20px; border: 1px solid var(--line); border-radius: var(--r-md); background: var(--paper); transition: border-color .18s var(--ease); }
.xd-contact-card:hover { border-color: var(--red); }
.xd-contact-card svg { width: 21px; height: 21px; color: var(--red); flex-shrink: 0; margin-top: 2px; }
.xd-contact-card h3 { font-size: 14.5px; font-weight: 800; margin-bottom: 3px; }
.xd-contact-card p { font-size: 13.5px; color: var(--mut); }
.xd-map-wrap { border-radius: var(--r-md); overflow: hidden; margin-top: 8px; display: block; position: relative; }
.xd-map-wrap img { width: 100%; }

/* ============ 表单 ============ */
.xd-form-wrap { display: grid; grid-template-columns: 1fr 380px; gap: 28px; align-items: start; }
.xd-form-card { background: var(--soft); border-radius: var(--r-lg); padding: 34px 36px; }
.xd-form-card h2 { font-size: 20px; font-weight: 900; margin-bottom: 4px; letter-spacing: -.01em; }
.xd-form-card > p { color: var(--mut); font-size: 13.5px; margin-bottom: 24px; }
.xd-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.xd-field { display: flex; flex-direction: column; gap: 7px; }
.xd-field.full { grid-column: 1 / -1; }
.xd-field label { font-size: 13px; font-weight: 700; color: var(--ink); }
.xd-field label em { color: var(--red); font-style: normal; margin-left: 3px; }
.xd-field input, .xd-field textarea, .xd-field select {
  font-family: inherit; font-size: 14px; padding: 12px 14px; border: 1.5px solid var(--line);
  border-radius: 10px; background: var(--paper); color: var(--ink); outline: none;
  transition: border-color .18s, box-shadow .18s; width: 100%;
}
.xd-field input:focus, .xd-field textarea:focus, .xd-field select:focus { border-color: var(--red); box-shadow: 0 0 0 3px rgba(230, 0, 18, .1); }
.xd-field textarea { resize: vertical; min-height: 120px; }
.xd-captcha-row { display: flex; gap: 10px; align-items: center; }
.xd-captcha-row input { flex: 1; }
.xd-captcha-row img { height: 46px; border-radius: 10px; border: 1.5px solid var(--line); cursor: pointer; flex-shrink: 0; }
.xd-form-note { font-size: 12px; color: var(--mut); margin-top: 14px; display: flex; gap: 6px; align-items: flex-start; }
.xd-form-note svg { width: 14px; height: 14px; flex-shrink: 0; margin-top: 2px; color: var(--ink-faint); }
.xd-alert-success {
  display: flex; gap: 14px; align-items: flex-start; padding: 20px 22px; border-radius: 12px;
  background: var(--paper); border: 1px solid var(--line); border-left: 4px solid var(--red); color: var(--ink); margin-bottom: 22px; font-size: 14px;
}
.xd-alert-success svg { width: 22px; height: 22px; flex-shrink: 0; color: var(--red); }

/* ============ 404 ============ */
.xd-404 { text-align: center; padding: 110px 20px 130px; }
.xd-404 b { font-size: 92px; font-weight: 900; letter-spacing: .04em; line-height: 1; display: block; margin-bottom: 8px; color: var(--red); }
.xd-404 h1 { font-size: 22px; font-weight: 800; margin-bottom: 10px; }
.xd-404 p { color: var(--mut); margin-bottom: 28px; }

/* ============ 响应式 ============ */
@media (max-width: 1080px) {
  .xd-pl-grid { grid-template-columns: repeat(3, 1fr); }
  .xd-detail-layout { grid-template-columns: 1fr; }
  .xd-aside { position: static; }
  .xd-form-wrap { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  .xd-pd-hero { grid-template-columns: 1fr; }
  .xd-article { padding: 24px 20px; }
  .xd-page-body { padding: 26px 20px; }
  .xd-form-card { padding: 24px 20px; }
  .xd-news-row { grid-template-columns: 1fr; }
  .xd-news-row img { min-height: 0; aspect-ratio: 16/7; }
  .xd-panel { padding: 22px 18px; }
  .xd-subnav-in { padding: 12px 20px; }
}
@media (max-width: 620px) {
  .xd-pl-grid { grid-template-columns: repeat(2, 1fr); }
  .xd-form-grid { grid-template-columns: 1fr; }
  .xd-contact-grid { grid-template-columns: 1fr; }
  .xd-prevnext { grid-template-columns: 1fr; }
}