/* ============================================================
   先达图文 dqxd.cn — 设计系统 v4「印张」(2026-09-16e)
   方向契约见 .impeccable/surface-briefs/home.md
   页面=印刷机上传送的大印张：测控条分隔 · 裁切标记 · 价目行
   禁项（craft-floor）：eyebrow、渐变字、硬偏移阴影、图标卡片网格、满屏 fade-up
   ============================================================ */

:root {
  /* 油墨与纸 */
  --ink: #141519;
  --ink-2: #2B2D35;
  --ink-soft: #575B66;
  --ink-faint: #9A9EA8;
  --paper: #FFFFFF;
  --paper-dim: #F4F4F2;      /* 印张背面/纸灰 */
  --line: #E3E3DF;
  /* CMYK 色版（只用于测控条与色版标记） */
  --c: #00AEEF;
  --m: #EC008C;
  --y: #FFD400;
  --k: #141519;
  /* 兼容映射 */
  --xd-ink: #141519;
  --xd-primary: #141519;
  --xd-text: #141519;
  --xd-muted: #575B66;
  --xd-bg: #FFFFFF;
  --xd-line: #E3E3DF;
  --xd-cyan: #00AEEF; --xd-magenta: #EC008C; --xd-yellow: #FFD400;
  --xd-grad-ink: linear-gradient(150deg, #1C1E24 0%, #101114 80%);
  --xd-sh-sm: 0 1px 2px rgba(20,21,25,.04), 0 2px 8px rgba(20,21,25,.04);
  --xd-sh-md: 0 8px 24px rgba(20,21,25,.09), 0 2px 8px rgba(20,21,25,.05);
  --xd-sh-primary: none;
  --xd-font: "Inter", "Noto Sans SC", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --xd-container: 1160px;
  --xd-header-h: 60px;
  --xd-ease: cubic-bezier(.16, 1, .3, 1);
}

/* ============ 基础 ============ */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--xd-font); color: var(--ink); background: var(--paper);
  font-size: 15.5px; line-height: 1.8;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .18s var(--xd-ease); }
a:hover { color: var(--ink); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }
::selection { background: var(--y); color: var(--ink); }
:focus-visible { outline: 2px solid var(--c); outline-offset: 3px; }

.xd-container { max-width: var(--xd-container); margin: 0 auto; padding: 0 28px; }

/* ============ 印刷系统组件 ============ */
/* 测控条：CMYK 实地 + 网点块序列（唯一装饰系统） */
.xd-bar {
  height: 8px; width: 100%; display: flex; gap: 0;
  background: transparent;
}
.xd-bar i { flex: 1; display: block; }
.xd-bar i:nth-child(1) { background: var(--c); }
.xd-bar i:nth-child(2) { background: var(--m); }
.xd-bar i:nth-child(3) { background: var(--y); }
.xd-bar i:nth-child(4) { background: var(--k); }
.xd-bar i:nth-child(5) { background: repeating-linear-gradient(90deg, var(--k) 0 6px, var(--paper) 6px 12px); }
.xd-bar i:nth-child(6) { background: var(--c); opacity: .5; }
.xd-bar i:nth-child(7) { background: var(--m); opacity: .5; }
.xd-bar i:nth-child(8) { background: var(--y); opacity: .5; }
.xd-bar i:nth-child(9) { background: var(--k); opacity: .5; }
.xd-bar i:nth-child(10) { background: var(--paper); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
/* hero 版：加载时从左"印刷"出来（全站唯一动效） */
.xd-bar.press { transform-origin: left; animation: xd-press .9s var(--xd-ease) both; }
@keyframes xd-press { from { transform: scaleX(0); } to { transform: scaleX(1); } }

/* 裁切标记（区块容器四角细十字线） */
.xd-sheet { position: relative; }
.xd-sheet::before, .xd-sheet::after,
.xd-sheet > .xd-crop::before, .xd-sheet > .xd-crop::after {
  content: ''; position: absolute; width: 14px; height: 14px; pointer-events: none;
}
.xd-sheet::before { top: 6px; left: 0; border-top: 1.5px solid var(--ink-faint); border-left: 1.5px solid var(--ink-faint); }
.xd-sheet::after { top: 6px; right: 0; border-top: 1.5px solid var(--ink-faint); border-right: 1.5px solid var(--ink-faint); }
.xd-sheet > .xd-crop::before { bottom: 6px; left: 0; border-bottom: 1.5px solid var(--ink-faint); border-left: 1.5px solid var(--ink-faint); }
.xd-sheet > .xd-crop::after { bottom: 6px; right: 0; border-bottom: 1.5px solid var(--ink-faint); border-right: 1.5px solid var(--ink-faint); }

/* 色版小方块（分类/列表标记：C/M/Y/K 轮换承载分版含义） */
.xd-plate {
  display: inline-block; width: 10px; height: 10px; border-radius: 2px; flex-shrink: 0;
}
.xd-p-c { background: var(--c); } .xd-p-m { background: var(--m); }
.xd-p-y { background: var(--y); } .xd-p-k { background: var(--k); }

/* 按钮：黑墨实心 / 细线描边（无渐变、无错位阴影） */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 30px; border-radius: 8px; font-size: 15px; font-weight: 700;
  line-height: 1.2; white-space: nowrap; letter-spacing: .3px; cursor: pointer;
  transition: background .18s var(--xd-ease), color .18s var(--xd-ease), border-color .18s var(--xd-ease);
  border: 1.5px solid transparent;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--ink); color: #fff; border-color: var(--ink); }
.btn-primary:hover { background: var(--ink-2); color: #fff; }
.btn-outline { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn-outline:hover { background: var(--ink); color: #fff; }
.btn-ghost-light { border-color: rgba(255,255,255,.45); color: #fff; background: transparent; }
.btn-ghost-light:hover { border-color: #fff; background: rgba(255,255,255,.08); color: #fff; }
.btn-sm { padding: 9px 20px; font-size: 13.5px; border-radius: 6px; }

/* 章节头：标题自重，无 eyebrow；左对齐 */
.xd-section { padding: 88px 0; }
.xd-section.alt { background: var(--paper-dim); }
.xd-sec-head { margin: 0 0 44px; max-width: 720px; }
.xd-sec-title { font-size: clamp(26px, 3.2vw, 36px); font-weight: 900; letter-spacing: -.02em; line-height: 1.25; }
.xd-sec-sub { color: var(--ink-soft); font-size: 15.5px; margin-top: 10px; }
.xd-cmyk { display: inline-flex; gap: 7px; align-items: center; }
.xd-cmyk i { width: 7px; height: 7px; border-radius: 1px; display: inline-block; }
.xd-cmyk i:nth-child(1) { background: var(--c); }
.xd-cmyk i:nth-child(2) { background: var(--m); }
.xd-cmyk i:nth-child(3) { background: var(--y); }
.xd-cmyk i:nth-child(4) { background: var(--k); }

/* 入场：默认可见，仅 reduced-motion 保障 */
.rv { opacity: 1; transform: none; }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .xd-bar.press { animation: none; }
  .xd-bgvideo { display: none; }
}

/* ============ 头部 ============ */
.xd-header {
  position: sticky; top: 0; z-index: 900;
  background: rgba(255,255,255,.95);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.xd-header-top { display: none !important; }
.xd-logo img { max-height: 42px; width: auto; max-width: 185px; }
.xd-header-info { display: flex; align-items: center; gap: 24px; }
.xd-header-info-item { display: flex; align-items: center; gap: 10px; }
.xd-header-info-item svg { width: 19px; height: 19px; color: var(--ink); flex-shrink: 0; }
.xd-header-info-item b { display: block; font-size: 13px; font-weight: 700; line-height: 1.3; }
.xd-header-info-item span { display: block; font-size: 11.5px; color: var(--ink-soft); }
.xd-header-cta {
  padding: 9px 22px; border-radius: 7px; font-size: 13.5px; font-weight: 700;
  background: var(--ink); color: #fff !important; letter-spacing: .5px;
  transition: background .18s var(--xd-ease);
}
.xd-header-cta:hover { background: var(--ink-2); }
.xd-nav { border-top: 0; }
.xd-nav-in { display: flex; align-items: center; justify-content: flex-start; height: var(--xd-header-h); gap: 4px; }
.xd-nav .xd-nav-in > a { position: relative; padding: 8px 14px; font-size: 14.5px; font-weight: 600; color: var(--ink-soft); }
.xd-nav .xd-nav-in > a:hover { color: var(--ink); }
.xd-nav .xd-nav-in > a.active { color: var(--ink); font-weight: 700; }
.xd-nav .xd-nav-in > a.active::after {
  content: ''; position: absolute; left: 14px; right: 14px; bottom: 0; height: 3px;
  background: var(--c);
}
.xd-nav .xd-nav-in > a.xd-nav-cta {
  margin-left: auto; padding: 10px 24px; border-radius: 7px;
  background: var(--ink); color: #fff; font-weight: 700;
}
.xd-nav .xd-nav-in > a.xd-nav-cta::after { display: none; }
.xd-nav .xd-nav-in > a.xd-nav-cta:hover { background: var(--ink-2); color: #fff; }
.xd-nav .xd-nav-in > a.xd-nav-cta.active { color: #fff; }
.xd-burger { display: none; }

/* ============ Hero（一张待印的印张） ============ */
.xd-hero { position: relative; overflow: hidden; background: var(--paper); color: var(--ink); }
.xd-bgvideo, .xd-bgveil { display: none; }
/* 淡灰网点场（标题后的 halftone 氛围，几何允许） */
.xd-hero::after {
  content: ''; position: absolute; top: 0; bottom: 0; right: 0; width: 46%;
  background-image: radial-gradient(var(--ink-faint) 1.1px, transparent 1.1px);
  background-size: 15px 15px; opacity: .18;
  mask-image: linear-gradient(105deg, transparent 30%, #000 75%);
  -webkit-mask-image: linear-gradient(105deg, transparent 30%, #000 75%);
  pointer-events: none;
}
.xd-hero-in { position: relative; z-index: 2; display: grid; grid-template-columns: 1.15fr .85fr; gap: 24px; align-items: center; padding: 76px 28px 56px; }
.xd-hero-badge {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 13px; font-weight: 600; color: var(--ink-soft);
  border: 1.5px solid var(--ink); border-radius: 999px; padding: 6px 15px 6px 9px; background: #fff;
}
.xd-hero-badge b {
  background: var(--y); color: var(--ink); font-weight: 800; font-size: 11px;
  padding: 2.5px 9px; border-radius: 999px; letter-spacing: .5px;
}
.xd-hero-title {
  font-size: clamp(40px, 5.6vw, 66px); line-height: 1.14; font-weight: 900;
  letter-spacing: -.025em; margin: 24px 0 16px; color: var(--ink);
}
.xd-hero-title em { font-style: normal; }
.xd-hero-sub { font-size: 16.5px; color: var(--ink-soft); max-width: 560px; line-height: 1.85; }
.xd-hero-cta { display: flex; gap: 12px; margin: 28px 0 24px; flex-wrap: wrap; align-items: center; }
.xd-hero-tel { font-size: 15px; font-weight: 700; letter-spacing: .3px; font-variant-numeric: tabular-nums; }
.xd-hero-tel small { display: block; font-size: 12px; font-weight: 500; color: var(--ink-soft); letter-spacing: 0; }
.xd-hero-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.xd-hero-chips a {
  padding: 6px 14px; border-radius: 999px; font-size: 13px; font-weight: 600; color: var(--ink-soft);
  border: 1px solid var(--line); background: #fff;
  transition: all .18s var(--xd-ease);
}
.xd-hero-chips a:hover { color: var(--ink); border-color: var(--ink); }
/* 吉祥物：右下角小规模出现 */
.xd-hero-art { position: relative; display: flex; align-items: flex-end; justify-content: flex-end; padding-right: 24px; }
.xd-hero-art img.mascot { width: min(64%, 250px); height: auto; position: relative; z-index: 2; }
.xd-hero-art .art-paper {
  position: absolute; right: 12%; bottom: 6%; width: 56%; height: 58%; border-radius: 14px; z-index: 1;
  background: var(--paper-dim); border: 1px solid var(--line);
  transform: rotate(-3deg);
}
.xd-hero-art .art-paper.p2 { background: #fff; transform: rotate(2deg); z-index: 0; }
/* hero 底部测控条 */
.xd-hero-cbar { position: relative; z-index: 2; }

/* ============ 价目牌（服务） ============ */
.xd-menu { border-top: 1.5px solid var(--ink); }
.xd-menu-row {
  display: grid; grid-template-columns: 22px minmax(150px, 240px) 1fr auto; gap: 18px;
  align-items: baseline; padding: 20px 8px; border-bottom: 1px solid var(--line);
  transition: background .18s var(--xd-ease);
}
.xd-menu-row:hover { background: var(--paper-dim); }
.xd-menu-row:nth-child(4n) { border-bottom: 1.5px solid var(--ink); }
.xd-menu-row .xd-plate { align-self: center; }
.xd-menu-row h3 { font-size: 20px; font-weight: 800; letter-spacing: -.01em; line-height: 1.3; }
.xd-menu-row h3 small { display: block; font-size: 12px; font-weight: 600; color: var(--ink-faint); letter-spacing: .8px; margin-top: 2px; }
.xd-menu-row p { font-size: 13.5px; color: var(--ink-soft); line-height: 1.65; }
.xd-menu-row .xd-menu-note { font-size: 11px; color: var(--ink-faint); font-weight: 600; white-space: nowrap; align-self: center; text-align: right; }
.xd-menu-row .xd-menu-note b { display: block; font-size: 16px; color: var(--ink); font-weight: 900; font-variant-numeric: tabular-nums; letter-spacing: -.01em; }
.xd-more-row { text-align: left; margin-top: 28px; }

/* ============ 样册（热门服务/产品） ============ */
.xd-pro-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px 22px; }
.xd-pro-card { display: flex; flex-direction: column; }
.xd-pro-img { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--paper-dim); border-radius: 6px; }
.xd-pro-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s var(--xd-ease); }
.xd-pro-card:hover .xd-pro-img img { transform: scale(1.035); }
.xd-pro-body { padding: 13px 2px 0; flex: 1; display: flex; flex-direction: column; gap: 3px; }
.xd-pro-body h3 { font-size: 15.5px; font-weight: 800; letter-spacing: .2px; display: flex; align-items: center; gap: 8px; }
.xd-pro-body h3 .xd-plate { width: 8px; height: 8px; }
.xd-pro-body p { font-size: 12.5px; color: var(--ink-soft); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ============ 工序（黑底走纸线） ============ */
.xd-proc { background: var(--ink); color: #fff; position: relative; overflow: hidden; }
.xd-proc .xd-sec-title { color: #fff; }
.xd-proc .xd-sec-sub { color: rgba(255,255,255,.55); }
.xd-proc-grid { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.xd-proc-grid::before {
  content: ''; position: absolute; top: 20px; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--c) 0 25%, var(--m) 25% 50%, var(--y) 50% 75%, #55575F 75%);
}
.xd-proc-step { padding-top: 0; }
.xd-proc-num {
  width: 42px; height: 42px; border-radius: 8px; display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 15px; color: var(--ink); margin-bottom: 16px; position: relative; z-index: 1;
  border: 1.5px solid transparent;
}
.xd-proc-step:nth-child(1) .xd-proc-num { background: var(--c); }
.xd-proc-step:nth-child(2) .xd-proc-num { background: var(--m); color: #fff; }
.xd-proc-step:nth-child(3) .xd-proc-num { background: var(--y); }
.xd-proc-step:nth-child(4) .xd-proc-num { background: #fff; }
.xd-proc-step h3 { font-size: 16.5px; font-weight: 800; margin-bottom: 6px; letter-spacing: .5px; }
.xd-proc-step p { font-size: 13px; color: rgba(255,255,255,.55); line-height: 1.7; }
.xd-proc-arrow { display: none; }
/* 数据行（文字式，非四格模板） */
.xd-facts {
  margin-top: 48px; padding: 18px 0 4px; border-top: 1px solid rgba(255,255,255,.14);
  display: flex; flex-wrap: wrap; gap: 12px 44px; font-size: 14px; color: rgba(255,255,255,.85);
}
.xd-facts b { font-weight: 900; font-size: 21px; color: #fff; font-variant-numeric: tabular-nums; letter-spacing: -.01em; }
.xd-facts i { font-style: normal; color: rgba(255,255,255,.5); font-size: 12.5px; display: block; margin-top: 1px; }

/* ============ 设备 ============ */
.xd-eq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px 44px; }
.xd-eq-card { display: grid; grid-template-columns: 190px 1fr; gap: 20px; align-items: center; }
.xd-eq-card img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 6px; background: var(--paper-dim); }
.xd-eq-num { font-size: 11.5px; font-weight: 800; letter-spacing: 2px; color: var(--ink-faint); display: flex; align-items: center; gap: 8px; }
.xd-eq-card h3 { font-size: 17.5px; font-weight: 800; margin: 5px 0 6px; letter-spacing: .2px; }
.xd-eq-card p { font-size: 13px; color: var(--ink-soft); line-height: 1.7; }

/* ============ 为什么选先达（两列断言列表） ============ */
.xd-why-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 56px; }
.xd-why-card { display: flex; gap: 14px; padding: 20px 4px; border-bottom: 1px solid var(--line); align-items: flex-start; }
.xd-why-card .xd-plate { margin-top: 7px; }
.xd-why-card h3 { font-size: 16.5px; font-weight: 800; letter-spacing: .3px; }
.xd-why-card p { font-size: 13.5px; color: var(--ink-soft); margin-top: 3px; line-height: 1.7; }
.xd-why-icon { display: none; }

/* ============ 新闻 ============ */
.xd-news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px 22px; }
.xd-news-card { display: flex; flex-direction: column; }
.xd-news-img { aspect-ratio: 16 / 9; overflow: hidden; border-radius: 6px; background: var(--paper-dim); }
.xd-news-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s var(--xd-ease); }
.xd-news-card:hover .xd-news-img img { transform: scale(1.035); }
.xd-news-body { padding: 13px 2px 0; flex: 1; display: flex; flex-direction: column; gap: 5px; }
.xd-news-meta { display: flex; align-items: center; gap: 10px; font-size: 12px; color: var(--ink-faint); font-variant-numeric: tabular-nums; }
.xd-news-meta .xd-news-cat { font-weight: 700; color: var(--ink); display: inline-flex; align-items: center; gap: 6px; }
.xd-news-meta .xd-news-cat::before { content: ''; width: 8px; height: 8px; border-radius: 2px; background: var(--c); }
.xd-news-body h3 { font-size: 15.5px; font-weight: 800; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.xd-news-body p { font-size: 12.5px; color: var(--ink-soft); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; flex: 1; }

/* ============ CTA（黑墨 + 油墨视频） ============ */
.xd-cta-band { position: relative; overflow: hidden; background: var(--ink); }
.xd-cta-band .xd-bgvideo { display: block; }
.xd-cta-band .xd-bgveil { display: block; background: linear-gradient(115deg, rgba(20,21,25,.92), rgba(20,21,25,.68) 55%, rgba(20,21,25,.9)); }
.xd-cta-band::before {
  content: ''; position: absolute; inset: 0; z-index: 1;
  background: radial-gradient(560px 280px at 20% 35%, rgba(0,174,239,.14), transparent 60%),
              radial-gradient(460px 260px at 82% 75%, rgba(236,0,140,.09), transparent 60%);
}
.xd-cta-in { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 32px; padding: 64px 28px; flex-wrap: wrap; }
.xd-cta-in h2 { color: #fff; font-size: clamp(24px, 3vw, 33px); font-weight: 900; letter-spacing: -.01em; margin-bottom: 10px; }
.xd-cta-in p { color: rgba(255,255,255,.6); }
.xd-cta-actions { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.xd-cta-tel { display: flex; align-items: center; gap: 12px; color: #fff; }
.xd-cta-tel svg { width: 42px; height: 42px; padding: 11px; border-radius: 10px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.14); color: var(--y); }
.xd-cta-tel b { display: block; font-size: 22px; font-weight: 900; font-variant-numeric: tabular-nums; letter-spacing: .3px; color: var(--y); }
.xd-cta-tel span { font-size: 12px; color: rgba(255,255,255,.5); }

/* ============ 页脚 ============ */
.xd-footer { background: var(--ink); color: rgba(255,255,255,.62); position: relative; }
.xd-footer::before { content: ''; position: absolute; left: 0; right: 0; top: 0; height: 8px;
  background: linear-gradient(90deg, var(--c) 0 25%, var(--m) 25% 50%, var(--y) 50% 75%, #3A3C44 75%); }
.xd-footer-in { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.3fr; gap: 40px; padding: 60px 28px 40px; }
.xd-footer h4 { color: #fff; font-size: 15.5px; font-weight: 800; margin-bottom: 16px; letter-spacing: 1.5px; }
.xd-footer-brand p { font-size: 13px; color: rgba(255,255,255,.48); }
.xd-footer-slogan { margin-top: 10px; color: rgba(255,255,255,.75) !important; font-weight: 600; }
.xd-footer-brand .xd-cmyk { margin-top: 16px; }
.xd-footer-brand .xd-cmyk i:nth-child(4) { background: #fff; }
.xd-footer-links a { display: block; margin-bottom: 10px; font-size: 13.5px; color: rgba(255,255,255,.55); }
.xd-footer-links a:hover { color: #fff; }
.xd-footer-contact p { font-size: 13px; margin-bottom: 9px; color: rgba(255,255,255,.5); font-variant-numeric: tabular-nums; }
.xd-footer-cta {
  display: inline-block; margin-top: 8px; padding: 10px 24px; border-radius: 7px;
  background: #fff; color: var(--ink) !important; font-weight: 800;
}
.xd-footer-cta:hover { background: var(--y); }
.xd-footer-icp {
  border-top: 1px solid rgba(255,255,255,.08); padding: 16px 28px; text-align: center;
  font-size: 12px; color: rgba(255,255,255,.35); display: flex; flex-direction: column; gap: 5px; align-items: center;
}
.xd-footer-icp a { color: rgba(255,255,255,.4); }
.xd-footer-icp a:hover { color: #fff; }

/* ============ 悬浮工具条 ============ */
.xd-dock { position: fixed; right: 16px; bottom: 22px; z-index: 950; display: flex; flex-direction: column; gap: 8px; }
.xd-dock a, .xd-dock button {
  width: 46px; height: 46px; border-radius: 10px; display: flex; align-items: center; justify-content: center;
  background: #fff; color: var(--ink); box-shadow: var(--xd-sh-md); border: 1px solid var(--line);
  transition: background .18s var(--xd-ease), color .18s var(--xd-ease);
}
.xd-dock a:hover, .xd-dock button:hover { background: var(--ink); color: #fff; }
.xd-dock svg { width: 20px; height: 20px; }
.xd-dock .xd-dock-qr img { width: 128px; height: 128px; border-radius: 10px; object-fit: cover; }
.xd-dock .xd-dock-qr { width: auto; height: auto; padding: 8px; background: #fff; display: none; }
.xd-dock .has-qr:hover .xd-dock-qr { display: flex; }
.xd-dock-item-wrap { position: relative; }
.xd-dock-tip {
  position: absolute; right: 56px; top: 50%; transform: translateY(-50%); white-space: nowrap;
  background: var(--ink); color: #fff; font-size: 12px; padding: 5px 12px; border-radius: 6px;
  opacity: 0; pointer-events: none; transition: opacity .18s;
}
.xd-dock-item-wrap:hover .xd-dock-tip { opacity: 1; }

/* ============ 响应式 ============ */
@media (max-width: 1080px) {
  .xd-pro-grid, .xd-news-grid { grid-template-columns: repeat(2, 1fr); }
  .xd-proc-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .xd-proc-grid::before { display: none; }
  .xd-eq-grid { grid-template-columns: 1fr; }
  .xd-footer-in { grid-template-columns: 1fr 1fr; gap: 30px; }
  .xd-header-info .xd-header-info-item:nth-child(2) { display: none; }
  .xd-menu-row { grid-template-columns: 22px 200px 1fr; }
  .xd-menu-row .xd-menu-note { display: none; }
}
@media (max-width: 860px) {
  :root { --xd-header-h: 54px; }
  .xd-header-info { display: none; }
  .xd-logo img { max-height: 34px; }
  .xd-nav { position: relative; }
  .xd-nav-in { display: none !important; flex-direction: column; align-items: stretch; padding: 10px 28px 14px; gap: 0; height: auto; }
  .xd-nav.open .xd-nav-in { display: flex !important; }
  .xd-nav .xd-nav-in > a { padding: 12px 12px; }
  .xd-nav .xd-nav-in > a.active::after { display: none; }
  .xd-nav .xd-nav-in > a.active { color: var(--c); background: var(--paper-dim); border-radius: 7px; }
  .xd-nav .xd-nav-in > a.xd-nav-cta { margin: 10px 0 4px; justify-content: center; }
  .xd-burger {
    display: flex; align-items: center; gap: 8px; position: absolute; right: 28px; top: 7px;
    color: var(--ink); font-size: 13px; font-weight: 700; padding: 8px 10px;
  }
  .xd-burger svg { width: 21px; height: 21px; }
  .xd-hero-in { grid-template-columns: 1fr; padding: 48px 28px 44px; }
  .xd-hero-art { order: -1; justify-content: flex-start; padding: 0 0 8px 10%; }
  .xd-hero-art img.mascot { width: 170px; }
  .xd-hero::after { width: 60%; opacity: .12; }
  .xd-section { padding: 60px 0; }
  .xd-sec-head { margin-bottom: 32px; }
  .xd-menu-row { grid-template-columns: 22px 1fr; row-gap: 4px; padding: 16px 4px; }
  .xd-menu-row p { grid-column: 2; }
  .xd-why-grid { grid-template-columns: 1fr; gap: 0; }
  .xd-cta-in { padding: 48px 28px; }
}
@media (max-width: 620px) {
  .xd-pro-grid, .xd-news-grid, .xd-proc-grid { grid-template-columns: 1fr; }
  .xd-eq-card { grid-template-columns: 1fr; }
  .xd-eq-card img { aspect-ratio: 16/9; }
  .xd-footer-in { grid-template-columns: 1fr; }
  .xd-hero-cta .btn { flex: 1; }
  .xd-facts { gap: 10px 28px; }
}

/* ============ 打印样式 ============ */
@media print {
  .xd-header, .xd-dock, .xd-cta-band, .xd-footer-icp { display: none; }
}