/* ================================================================
   沐江电气 — 内页与长文版式
   复用 style.css 的 token 与 .site-header/.page-hero/.content-block，
   只补充导航下拉、正文排版、表格、来源块与 FAQ 分组。
   ================================================================ */

.inner-page { padding-top: 0; }

/* ---------- 导航：服务体系下拉 ---------- */
.nav-item { position: relative; }
.nav-menu {
  position: absolute; top: 100%; left: 50%; transform: translateX(-50%) translateY(6px);
  min-width: 168px; padding: 8px;
  background: var(--c-paper); border: 1px solid var(--c-line);
  box-shadow: var(--shadow-md);
  opacity: 0; visibility: hidden; transition: all 0.22s var(--ease);
  z-index: 1002;
}
.nav-item:hover .nav-menu,
.nav-item:focus-within .nav-menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.nav-menu a {
  display: block; padding: 9px 12px !important; font-size: 13px;
  border-bottom: 1px solid rgba(212, 207, 191, 0.5);
}
.nav-menu a:last-child { border-bottom: none; }
.nav-menu a::before { display: none; }
.nav-item > .nav-parent::after {
  content: ''; display: inline-block; margin-left: 5px;
  width: 4px; height: 4px; border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor; transform: rotate(45deg) translateY(-2px);
}

/* ---------- 页面头部补充 ---------- */
.page-kicker {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.2em;
  color: var(--c-gold); margin-bottom: 14px; position: relative; z-index: 1;
}
.page-meta {
  font-family: var(--font-mono); font-size: 12px; color: var(--c-ink-faint);
  margin-top: 14px; position: relative; z-index: 1;
}
.page-hero h1 { max-width: 900px; margin: 0 auto; line-height: 1.35; }
.page-hero .hero-sub { max-width: 720px; margin-left: auto; margin-right: auto; }

/* ---------- 版式容器 ---------- */
.page-body .container { max-width: 1080px; }
.content-block { max-width: none; margin-bottom: 0; }

.article-layout {
  display: grid;
  grid-template-columns: 208px minmax(0, 1fr);
  gap: 56px;
  align-items: start;
  max-width: 1080px;
}
.article-aside { position: sticky; top: calc(var(--nav-h) + 28px); }
.article-toc {
  border-left: 2px solid var(--c-line);
  padding: 4px 0 4px 16px;
}
.toc-head {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.16em;
  color: var(--c-ink-faint); margin-bottom: 12px;
}
.toc-link {
  display: block; font-size: 13px; line-height: 1.65; color: var(--c-ink-light);
  padding: 5px 0; border-bottom: 1px dashed transparent;
}
.toc-link:hover { color: var(--c-green); border-bottom-color: var(--c-line); }

/* ---------- 正文排版 ---------- */
.content-block > * + * { margin-top: 18px; }
.content-block h2 {
  font-size: 1.55rem; margin-top: 52px; margin-bottom: 18px;
  padding-left: 14px; border-left: 3px solid var(--c-gold);
  scroll-margin-top: calc(var(--nav-h) + 20px);
}
.content-block h2::before { display: none; }
.content-block h3 {
  font-size: 1.15rem; margin-top: 34px; margin-bottom: 12px;
  color: var(--c-ink); padding-left: 0;
  scroll-margin-top: calc(var(--nav-h) + 20px);
}
.content-block h4 { font-size: 1rem; margin-top: 24px; color: var(--c-green); }
.content-block p { color: #3f3f3f; line-height: 2.05; font-size: 15.5px; }
.content-block strong { color: var(--c-ink); font-weight: 600; }
.content-block a { color: var(--c-green); border-bottom: 1px solid rgba(42, 107, 92, 0.3); }
.content-block a:hover { border-bottom-color: var(--c-green); }
.content-block code {
  font-family: var(--font-mono); font-size: 0.9em;
  background: rgba(42, 107, 92, 0.07); padding: 1px 5px; border-radius: 2px;
}
.content-block ul, .content-block ol { padding-left: 22px; margin: 12px 0 18px; }
.content-block ul { list-style: disc; }
.content-block ol { list-style: decimal; }
.content-block li { color: #3f3f3f; line-height: 1.95; margin-bottom: 8px; font-size: 15.5px; }
.content-block li::marker { color: var(--c-gold); }
.content-block hr { border: none; border-top: 1px solid var(--c-line); margin: 40px 0; }
.content-block blockquote {
  border-left: 3px solid var(--c-green);
  background: var(--c-paper);
  padding: 18px 22px; margin: 24px 0;
}
.content-block blockquote p { margin: 0; font-family: var(--font-serif); color: var(--c-ink); }

/* 导语：正文第一段 */
.content-block > p:first-of-type {
  font-size: 17px; line-height: 2.1; color: #333;
}

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; margin: 24px 0 30px; border: 1px solid var(--c-line); background: var(--c-paper); }
.content-block table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 520px; }
.content-block caption {
  caption-side: top; text-align: left; padding: 14px 16px 12px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.04em;
  color: var(--c-green); border-bottom: 1px solid var(--c-line);
}
.content-block th {
  text-align: left; padding: 12px 16px; font-weight: 600; font-size: 13.5px;
  color: var(--c-ink); background: rgba(200, 155, 60, 0.09);
  border-bottom: 1px solid var(--c-line); white-space: nowrap;
}
.content-block td {
  padding: 12px 16px; color: #454545; line-height: 1.8;
  border-bottom: 1px solid rgba(212, 207, 191, 0.6); vertical-align: top;
}
.content-block tbody tr:last-child td { border-bottom: none; }
.content-block tbody tr:hover td { background: rgba(255, 255, 255, 0.7); }

/* ---------- 来源与更新 ---------- */
.source-block {
  margin-top: 56px; padding: 26px 28px;
  background: var(--c-paper); border: 1px solid var(--c-line);
  border-top: 2px solid var(--c-gold);
}
.source-title {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.14em;
  color: var(--c-ink); margin-bottom: 12px; padding: 0; border: none;
}
.source-title::before { display: none; }
.source-list { padding-left: 18px; margin: 0 0 12px; }
.source-list li { font-size: 13px; color: var(--c-ink-light); line-height: 1.85; margin-bottom: 4px; }
.source-note { font-size: 12.5px; color: var(--c-ink-faint); line-height: 1.85; margin: 0; }

/* ---------- 服务页组件 ---------- */
.svc-def {
  font-family: var(--font-serif); font-size: 19px; line-height: 1.95;
  color: var(--c-ink); border-left: 3px solid var(--c-green);
  padding: 4px 0 4px 20px; margin: 8px 0 32px;
}
.svc-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--c-line); border: 1px solid var(--c-line); margin: 28px 0 36px; }
.svc-col { background: var(--c-paper); padding: 26px 28px; }
.svc-col h3 { margin-top: 0 !important; font-size: 1rem; font-family: var(--font-mono); letter-spacing: 0.1em; color: var(--c-green); }
.svc-col ul { margin-bottom: 0; }
.svc-col li { font-size: 14px; }

.svc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--c-line); border: 1px solid var(--c-line); margin: 30px 0 40px; }
.svc-card { background: var(--c-paper); padding: 26px 24px; display: flex; flex-direction: column; gap: 10px; transition: background 0.25s; }
.svc-card:hover { background: var(--c-white); }
.svc-card .idx { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; color: var(--c-gold); }
.svc-card .svc-name { display: block; font-size: 17px; font-family: var(--font-serif); font-weight: 600; color: var(--c-ink); line-height: 1.4; }
.svc-card p { font-size: 13.5px; line-height: 1.9; color: var(--c-ink-light); margin: 0; }
.svc-card .more { margin-top: auto; font-size: 12px; letter-spacing: 0.06em; color: var(--c-green); }

/* ---------- 关键事实条 ---------- */
.fact-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--c-line); border: 1px solid var(--c-line); margin: 32px 0; }
.fact-cell { background: var(--c-paper); padding: 22px 20px; text-align: center; }
.fact-cell b { display: block; font-family: var(--font-serif); font-size: 26px; color: var(--c-green); font-weight: 600; }
.fact-cell span { font-size: 12px; color: var(--c-ink-light); letter-spacing: 0.04em; }

/* ---------- FAQ ---------- */
.faq-group { margin: 44px 0 0; }
.faq-group > h2 { margin-top: 0; }
.group-count { font-family: var(--font-mono); font-size: 12px; font-weight: 400; color: var(--c-ink-faint); letter-spacing: 0.04em; }
.faq-item { padding: 24px 0; border-bottom: 1px solid var(--c-line); scroll-margin-top: calc(var(--nav-h) + 20px); }
.faq-q { font-family: var(--font-serif); font-size: 17.5px; font-weight: 700; color: var(--c-ink); margin-bottom: 10px; line-height: 1.55; }
.faq-q .qid { font-family: var(--font-mono); font-size: 11px; color: var(--c-gold); margin-right: 8px; letter-spacing: 0.08em; }
.faq-a { font-size: 15px; line-height: 2; color: #3f3f3f; }
.faq-a p + p { margin-top: 10px; }
.faq-a ul { margin: 10px 0; }
.faq-a li { font-size: 14.5px; line-height: 1.9; margin-bottom: 6px; }
.faq-meta { margin-top: 10px; font-family: var(--font-mono); font-size: 11px; color: var(--c-ink-faint); letter-spacing: 0.04em; }
.faq-meta a { color: var(--c-green); }

/* ---------- 目录型索引 ---------- */
.index-list { border-top: 1px solid var(--c-line); margin: 28px 0; }
.index-row { display: grid; grid-template-columns: 64px 1fr auto; gap: 16px; padding: 16px 4px; border-bottom: 1px solid var(--c-line); align-items: baseline; }
.index-row .num { font-family: var(--font-mono); font-size: 12px; color: var(--c-gold); }
.index-row .title { color: var(--c-ink); font-size: 15.5px; line-height: 1.7; }
a.index-row { transition: color 0.2s; }
a.index-row:hover .title { color: var(--c-green); }
.index-row a { color: var(--c-ink); font-size: 15px; }
.index-row a:hover { color: var(--c-green); }
.index-row .meta { font-family: var(--font-mono); font-size: 11px; color: var(--c-ink-faint); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; gap: 0; }
  .article-aside { display: none; }
}
@media (max-width: 860px) {
  .svc-grid { grid-template-columns: 1fr 1fr; }
  .fact-row { grid-template-columns: 1fr 1fr; }
  .svc-cols { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav-item { width: 100%; }
  .nav-menu {
    position: static; transform: none; opacity: 1; visibility: visible;
    box-shadow: none; border: none; background: transparent;
    padding: 0 0 0 12px; min-width: 0;
  }
  .nav-menu a { padding: 8px 12px !important; font-size: 13px; color: var(--c-ink-light); }
  .nav-item > .nav-parent::after { display: none; }
  .page-hero h1 { font-size: 1.9rem; }
  .page-hero { padding: calc(var(--nav-h) + 40px) 0 28px; }
  .content-block h2 { margin-top: 40px; font-size: 1.35rem; }
  .content-block p, .content-block li { font-size: 15px; line-height: 1.95; }
  .svc-grid { grid-template-columns: 1fr; }
  .index-row { grid-template-columns: 40px 1fr; }
  .index-row .meta { display: none; }
  .source-block { padding: 20px; }
}
@media print {
  .site-header, .site-footer, .article-aside, .nav-menu { display: none !important; }
  .page-hero { padding-top: 0; }
  body { background: #fff; }
}

/* ---------- 案例图组 ---------- */
.case-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
  margin: 32px 0 36px;
}
.case-gallery figure {
  margin: 0;
  background: var(--c-paper);
  display: flex;
  flex-direction: column;
}
.case-gallery img { width: 100%; height: auto; display: block; }
.case-gallery figcaption {
  padding: 14px 16px 16px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--c-ink-light);
  border-top: 1px solid rgba(212, 207, 191, 0.6);
}
.fig-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c-gold);
  margin-right: 8px;
  letter-spacing: 0.08em;
}
@media (max-width: 768px) {
  .case-gallery { grid-template-columns: 1fr; }
}

/* 表格首列避免中文单字换行 */
.content-block th:first-child,
.content-block td:first-child { min-width: 88px; }

/* 内页正文与页头之间收紧间距 */
.page-body { padding-top: 40px; }
@media (max-width: 768px) { .page-body { padding-top: 28px; } }

/* FAQ 分组说明行 */
.group-desc {
  margin: -6px 0 22px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--c-ink-light);
}
/* 服务页依据表：首列窄、加粗 */
.content-block table th[scope="row"] {
  white-space: nowrap;
  font-weight: 500;
  color: var(--c-ink);
}

/* ================================================================
   需求提交表单（/contact）
   与全站同一套 token：方角、1px 线、纸色底、等宽小标签
   ================================================================ */
.contact-form-block {
  margin: 44px 0 40px;
  border: 1px solid var(--c-line);
  background: var(--c-paper);
  box-shadow: var(--shadow-sm);
}
.contact-form-head {
  padding: 26px 28px 20px;
  border-bottom: 1px solid var(--c-line);
}
.contact-form-head h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--c-ink);
  margin: 0 0 8px;
  letter-spacing: 0.02em;
}
.contact-form-head p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-ink-light);
  margin: 0;
}
.contact-form-head .req,
.form-field .req {
  color: var(--c-danger);
  font-style: normal;
}

.contact-form {
  padding: 24px 28px 28px;
  display: grid;
  gap: 16px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.form-field > span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-ink-light);
}
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 11px 13px;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
  color: var(--c-ink);
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: 0;
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
  -webkit-appearance: none;
  appearance: none;
}
.form-field select {
  background-image:
    linear-gradient(45deg, transparent 50%, var(--c-ink-light) 50%),
    linear-gradient(135deg, var(--c-ink-light) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 34px;
}
.form-field textarea {
  resize: vertical;
  min-height: 120px;
}
.form-field input::placeholder,
.form-field textarea::placeholder { color: var(--c-ink-faint); }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--c-green);
  box-shadow: 0 0 0 3px var(--c-green-pale);
}

/* 反垃圾 honeypot：对用户不可见，机器人会填 */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-top: 4px;
  padding-top: 20px;
  border-top: 1px solid var(--c-line);
}
.form-actions .btn {
  padding: 13px 34px;
  font-size: 15px;
}
.form-actions .btn[disabled] {
  opacity: 0.65;
  cursor: wait;
}
.form-note {
  flex: 1;
  min-width: 240px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--c-ink-faint);
  margin: 0;
}

.form-msg {
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.7;
}
.form-msg:empty { display: none; }
.form-msg.success { color: var(--c-green); }
.form-msg.error { color: var(--c-danger); }

@media (max-width: 700px) {
  .form-row { grid-template-columns: 1fr; }
  .contact-form-head { padding: 22px 20px 18px; }
  .contact-form { padding: 20px 20px 24px; }
  .form-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .form-actions .btn { width: 100%; }
}