/* ==========================================================================
   元弘智造 · 站点级共享样式（全站唯一共享层，禁止页面内联样式）
   设计语言：深蓝主色 #224067 + 工业青点缀，细线、硬边、留白，克制科技感
   ========================================================================== */

:root {
  --brand: #224067;
  --brand-dark: #16283f;
  --brand-deep: #101d2f;
  --brand-mid: #2f5580;
  --brand-soft: #e9eff6;
  --accent: #1f8fa8;
  --accent-soft: #e6f3f6;
  --ink: #101d2f;
  --text: #384559;
  --muted: #6b7a91;
  --line: #e1e8f0;
  --line-strong: #cbd8e6;
  --bg-soft: #f5f8fb;
  --white: #ffffff;
  --radius-s: 6px;
  --radius: 10px;
  --radius-l: 16px;
  --shadow-s: 0 1px 2px rgba(16, 29, 47, 0.06);
  --shadow: 0 12px 32px rgba(16, 29, 47, 0.08);
  --shadow-l: 0 22px 60px rgba(16, 29, 47, 0.14);
  --container: 1180px;
  --font: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  margin: 0 0 0.6em;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
h1 { font-size: 2.5rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.2rem; }
h4 { font-size: 1.02rem; }
p { margin: 0 0 1.1em; }

a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--accent); }

img { max-width: 100%; height: auto; display: block; }
ul, ol { margin: 0 0 1.1em; padding-left: 1.2em; }
li { margin-bottom: 0.35em; }

/* 通用工具 ----------------------------------------------------------------- */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 84px 0; }
.section--soft { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section--tight { padding: 60px 0; }
.lead { font-size: 1.08rem; color: var(--text); max-width: 62ch; }
.muted { color: var(--muted); }
.center { text-align: center; }
.mono-num { font-variant-numeric: tabular-nums; letter-spacing: 0.04em; }

/* 小节标题：小标签 + 主标题 */
.section-head { margin-bottom: 44px; max-width: 760px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}
.kicker::before { content: ""; width: 22px; height: 1px; background: var(--accent); display: inline-block; }
.section-head h2 { margin-bottom: 10px; }
.section-head p { margin: 0; color: var(--muted); }

/* 按钮 --------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-s);
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-mid); color: #fff; transform: translateY(-1px); }
.btn-outline { border-color: var(--line-strong); color: var(--brand); background: var(--white); }
.btn-outline:hover { border-color: var(--brand); background: var(--brand-soft); color: var(--brand); }
.btn-light { background: #fff; color: var(--brand); }
.btn-light:hover { background: var(--accent-soft); color: var(--brand-dark); }
.btn-ghost { border-color: rgba(255, 255, 255, 0.42); color: #fff; }
.btn-ghost:hover { border-color: #fff; background: rgba(255, 255, 255, 0.12); color: #fff; }
.btn[disabled] { opacity: 0.6; cursor: not-allowed; transform: none; }

/* 顶部导航 ----------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: saturate(180%) blur(8px);
}
.site-header-inner {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong { font-size: 1.1rem; color: var(--ink); letter-spacing: 0.02em; }
.brand-text span { font-size: 0.68rem; color: var(--muted); letter-spacing: 0.22em; text-transform: uppercase; }
.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  background: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}
.brand-mark svg { width: 22px; height: 22px; }

.site-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(107, 122, 145, 0.35) transparent;
}
.site-nav::-webkit-scrollbar { height: 4px; }
.site-nav::-webkit-scrollbar-thumb { background: rgba(107, 122, 145, 0.3); border-radius: 999px; }
.site-nav::-webkit-scrollbar-track { background: transparent; }
.site-nav a {
  padding: 8px 11px;
  border-radius: var(--radius-s);
  font-size: 0.92rem;
  color: var(--text);
  white-space: nowrap;
}
.site-nav a:hover { color: var(--brand); background: var(--bg-soft); }
.site-nav a[aria-current="page"] { color: var(--brand); font-weight: 600; background: var(--brand-soft); }

/* 二级导航（栏目内页面切换，所有栏目页共用） ------------------------------ */
.sub-nav-bar { background: var(--bg-soft); border-bottom: 1px solid var(--line); }
.sub-nav { display: flex; align-items: center; flex-wrap: wrap; gap: 4px; padding: 10px 24px; }
.sub-nav-label {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-right: 8px;
}
.sub-nav a {
  padding: 6px 12px;
  border-radius: var(--radius-s);
  font-size: 0.9rem;
  color: var(--text);
  white-space: nowrap;
}
.sub-nav a:hover { background: var(--brand-soft); color: var(--brand); }
.sub-nav a[aria-current="page"] { background: var(--brand); color: #fff; font-weight: 600; }

/* 区块宽幅配图（首页与服务页共用） ---------------------------------------- */
.band-figure { margin: 0 0 36px; }
.band-figure img {
  width: 100%;
  height: clamp(190px, 28vw, 330px);
  object-fit: cover;
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
}
.band-figure figcaption { margin-top: 12px; font-size: 0.85rem; color: var(--muted); }

/* 内页页头 ----------------------------------------------------------------- */
.page-hero {
  background: var(--brand-deep);
  color: #fff;
  padding: 68px 0 60px;
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.055) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { color: #fff; margin-bottom: 12px; }
.page-hero p { color: rgba(255, 255, 255, 0.76); max-width: 68ch; margin: 0; }

/* 面包屑 ------------------------------------------------------------------- */
.breadcrumb { font-size: 0.84rem; color: var(--muted); margin-bottom: 18px; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb i { font-style: normal; margin: 0 6px; color: var(--line-strong); }

/* 网格与卡片 --------------------------------------------------------------- */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  position: relative;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.card:hover { border-color: var(--line-strong); box-shadow: var(--shadow); }
.card h3 { margin-bottom: 8px; }
.card p:last-child { margin-bottom: 0; }
.card--accent-top::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 46px;
  height: 3px;
  background: var(--accent);
  border-radius: 0 0 2px 0;
}
.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--brand-soft);
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.card-icon svg { width: 24px; height: 24px; }

/* 标签 --------------------------------------------------------------------- */
.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.tag--accent { background: var(--accent-soft); color: #14697d; }

/* 正文排版（文章页 / 富文本段） ------------------------------------------- */
.prose { font-size: 1.02rem; color: var(--text); }
.prose h2 { font-size: 1.4rem; margin-top: 2.1em; }
.prose h3 { font-size: 1.12rem; margin-top: 1.7em; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li { margin-bottom: 0.5em; }
.prose strong { color: var(--ink); }
.prose blockquote {
  margin: 1.6em 0;
  padding: 16px 20px;
  border-left: 3px solid var(--accent);
  background: var(--bg-soft);
  color: var(--text);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
}
.prose blockquote p:last-child { margin-bottom: 0; }
.prose figure { margin: 1.8em 0; }
.prose figure img { border-radius: var(--radius); border: 1px solid var(--line); }
.prose figcaption { font-size: 0.85rem; color: var(--muted); margin-top: 10px; }
.prose code {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.92em;
}

/* 表格（横向滚动容器） ----------------------------------------------------- */
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.table-scroll table { width: 100%; border-collapse: collapse; min-width: 520px; }
.table-scroll th, .table-scroll td { padding: 13px 18px; text-align: left; border-bottom: 1px solid var(--line); font-size: 0.95rem; vertical-align: top; }
.table-scroll th { background: var(--bg-soft); color: var(--ink); font-weight: 600; white-space: nowrap; }
.table-scroll tr:last-child th, .table-scroll tr:last-child td { border-bottom: none; }

/* 折叠问答 ---------------------------------------------------------------- */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 40px 20px 0;
  position: relative;
  font-weight: 600;
  color: var(--ink);
  font-size: 1.02rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "";
  position: absolute;
  right: 8px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-right: 1.6px solid var(--muted);
  border-bottom: 1.6px solid var(--muted);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.2s ease;
}
.faq details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.faq .faq-body { padding: 0 0 22px; color: var(--text); max-width: 82ch; }
.faq .faq-body p:last-child { margin-bottom: 0; }

/* 询盘表单（全站共享） ---------------------------------------------------- */
.lead-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: 0.88rem; font-weight: 600; color: var(--ink); }
.field .req { color: #c0392b; margin-left: 2px; }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-s);
  font-family: inherit;
  font-size: 0.96rem;
  color: var(--ink);
  background: var(--white);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.field textarea { min-height: 132px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(34, 64, 103, 0.12);
}
.field-hint { font-size: 0.8rem; color: var(--muted); }
.form-actions { grid-column: 1 / -1; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.form-status { font-size: 0.9rem; color: var(--muted); margin: 0; }

/* 图文案例卡（首页 / 应用案例页共用） ----------------------------------- */
.case-card { display: flex; flex-direction: column; padding: 0; overflow: hidden; }
.case-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-bottom: 1px solid var(--line); }
.case-body { padding: 22px 24px 24px; display: flex; flex-direction: column; gap: 10px; flex: 1 1 auto; }
.case-label {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}
.case-body h3 { margin: 0; font-size: 1.08rem; }
.case-body p { margin: 0; font-size: 0.93rem; color: var(--muted); }
.case-body ul { margin: 0; padding-left: 1.1em; font-size: 0.9rem; color: var(--muted); }
.case-body ul li { margin-bottom: 6px; }
.case-body ul li:last-child { margin-bottom: 0; }
.case-body .post-more { margin-top: auto; }

/* 工艺链条（表面处理页 / 模具成型页共用） -------------------------------- */
.process-chain { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.process-chain li {
  list-style: none;
  border-top: 2px solid var(--line-strong);
  padding-top: 16px;
}
.process-chain .chain-step {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.process-chain h3 { font-size: 1rem; margin: 8px 0 6px; }
.process-chain p { margin: 0; font-size: 0.9rem; color: var(--muted); }

/* 特性/工艺说明卡（材料选型页 / 表面处理页共用） ------------------------- */
.info-card { display: flex; flex-direction: column; gap: 8px; }
.info-card .case-label { margin-bottom: 2px; }
.info-card ul { margin: 0; padding-left: 1.1em; font-size: 0.93rem; color: var(--muted); }
.info-card ul li { margin-bottom: 6px; }
.info-card ul li:last-child { margin-bottom: 0; }

/* 参数列表（应用案例页 / 材料选型页共用） -------------------------------- */
.spec-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.spec-grid--spaced { margin-top: 40px; }
.spec-grid h3 { font-size: 1.02rem; }
.spec-list { display: grid; grid-template-columns: 108px minmax(0, 1fr); margin: 0; }
.spec-list dt { padding: 11px 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 0.85rem; }
.spec-list dd { margin: 0; padding: 11px 0; border-bottom: 1px solid var(--line); color: var(--ink); font-size: 0.93rem; }
.spec-list dt:first-of-type, .spec-list dd:first-of-type { border-top: 1px solid var(--line); }

/* 说明性备注块（工艺能力页 / 应用案例页共用） ----------------------------- */
.spec-note {
  margin-top: 26px;
  padding: 16px 20px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--muted);
  background: var(--bg-soft);
}

/* 通用细滚动条（长列表/表格容器等共用一套） ------------------------------- */
.list-scroll { overflow-y: auto; scrollbar-width: thin; scrollbar-color: rgba(107, 122, 145, 0.35) transparent; }
.list-scroll::-webkit-scrollbar { width: 8px; height: 8px; }
.list-scroll::-webkit-scrollbar-thumb { background: rgba(107, 122, 145, 0.35); border-radius: 999px; }
.list-scroll::-webkit-scrollbar-track { background: transparent; }

/* 页脚 --------------------------------------------------------------------- */
.site-footer { background: var(--brand-deep); color: rgba(255, 255, 255, 0.72); }
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr;
  gap: 40px;
  padding: 60px 0 40px;
}
.footer-brand { display: flex; flex-direction: column; gap: 16px; }
.footer-logo { width: 186px; height: auto; border-radius: var(--radius-s); background: #fff; padding: 10px 12px; }
.footer-brand p { margin: 0; font-size: 0.92rem; color: rgba(255, 255, 255, 0.68); max-width: 40ch; }
.footer-col h3 { color: #fff; font-size: 0.95rem; letter-spacing: 0.06em; margin-bottom: 16px; }
.footer-col h3:not(:first-child) { margin-top: 26px; }
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 10px; font-size: 0.92rem; }
.footer-col a { color: rgba(255, 255, 255, 0.72); }
.footer-col a:hover { color: #fff; }
.footer-contact { margin: 0; font-size: 0.92rem; }
.footer-contact dt { color: rgba(255, 255, 255, 0.5); font-size: 0.76rem; letter-spacing: 0.08em; text-transform: uppercase; margin-top: 14px; }
.footer-contact dt:first-child { margin-top: 0; }
.footer-contact dd { margin: 4px 0 0; color: #fff; }
.footer-contact a { color: #fff; }
.footer-ai-crawl {
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  padding: 18px 0 0;
  font-size: 0.86rem;
  color: rgba(255, 255, 255, 0.62);
}
.footer-ai-crawl a { color: rgba(255, 255, 255, 0.88); text-decoration: underline; text-underline-offset: 3px; }
.footer-ai-crawl a:hover { color: #fff; }
.footer-info {
  padding: 12px 0 30px;
  font-size: 0.84rem;
  color: rgba(255, 255, 255, 0.55);
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
}
.footer-info a { color: rgba(255, 255, 255, 0.7); }

/* 文章卡片（首页最新动态 / 新闻列表共用组件） ---------------------------- */
.post-grid { display: grid; gap: 22px; }
.post-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.post-card:hover { border-color: var(--line-strong); box-shadow: var(--shadow); }
.post-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 0.8rem; color: var(--muted); margin-bottom: 14px; }
.post-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.post-card h3 a { color: var(--ink); }
.post-card h3 a:hover { color: var(--brand-mid); }
.post-card p { font-size: 0.93rem; color: var(--muted); margin: 0 0 18px; }
.post-more { margin-top: auto; font-size: 0.86rem; font-weight: 600; color: var(--brand); }
.post-more:hover { color: var(--accent); }

/* 流程步骤（首页 / 工艺能力页共用组件） ---------------------------------- */
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 20px; counter-reset: step; }
.steps li { border-top: 2px solid var(--line-strong); padding-top: 18px; }
.steps li::before {
  counter-increment: step;
  content: "0" counter(step);
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 10px;
  font-variant-numeric: tabular-nums;
}
.steps h3 { font-size: 1.02rem; margin-bottom: 6px; }
.steps p { margin: 0; font-size: 0.9rem; color: var(--muted); }
.steps--five { grid-template-columns: repeat(5, minmax(0, 1fr)); }

/* 要点清单（勾选式，首页 / 工艺能力页共用组件） -------------------------- */
.check-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.check-list li { display: flex; gap: 14px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.check-list li:first-child { border-top: 1px solid var(--line); }
.check-list svg { flex: 0 0 auto; width: 20px; height: 20px; color: var(--accent); margin-top: 5px; }
.check-list h3 { font-size: 1.02rem; margin: 0 0 4px; }
.check-list p { margin: 0; font-size: 0.93rem; color: var(--muted); }

/* 品牌信息块（关于我们 / 页脚式品牌展示） ------------------------------- */
.brand-block { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.brand-block img { width: 220px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; }
.brand-block div { flex: 1 1 260px; }

/* 双栏内容区（首页 / 关于我们 / 新闻页共用组件） ------------------------- */
.split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 48px; align-items: start; }

/* 行动号召条（多页共用的深色条块） -------------------------------------- */
.cta-band {
  background: linear-gradient(120deg, var(--brand) 0%, var(--brand-deep) 100%);
  border-radius: var(--radius-l);
  padding: 46px 48px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-band h2 { color: #fff; margin-bottom: 8px; }
.cta-band p { color: rgba(255, 255, 255, 0.76); margin: 0; max-width: 52ch; }
.cta-band .btn { flex: 0 0 auto; }

/* 响应式 ------------------------------------------------------------------ */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .split { grid-template-columns: 1fr; gap: 34px; }
  .steps--five { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .process-chain { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  body { font-size: 15.5px; }
  h1 { font-size: 1.9rem; }
  h2 { font-size: 1.45rem; }
  .section { padding: 58px 0; }
  .container { padding: 0 18px; }
  .site-header-inner { flex-wrap: wrap; gap: 10px; padding: 12px 18px; }
  .site-nav { width: 100%; margin-left: 0; order: 3; padding-bottom: 2px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .spec-grid { grid-template-columns: 1fr; }
  .spec-list { grid-template-columns: 92px minmax(0, 1fr); }
  .lead-form { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 30px; padding: 44px 0 30px; }
  .page-hero { padding: 48px 0 42px; }
  .cta-band { padding: 32px 24px; }
  .steps--five { grid-template-columns: 1fr; }
  .process-chain { grid-template-columns: 1fr; }
}