/* 点穴手 · 纯静态 HTML5 站 · 站点样式
   - 合并 src/styles/tokens.css 的色板/字体 token
   - 精简 src/styles/tailwind.css 中实际用到的 utility（container / mx-auto / flex / grid / text-* / rounded-* / shadow-card 等）
   - 不引整份 Tailwind preflight，避免 30 万行 CSS */

:root {
  --mg-paper: #f5efe1;
  --mg-paper-2: #ece3cc;
  --mg-mo: #1f4d3a;
  --mg-mo-deep: #102e23;
  --mg-dai: #2c4a5a;
  --mg-zhu: #b8392e;
  --mg-ink: #1a1a1a;
  --mg-muted: #5c5040;
  --mg-line: rgba(31, 77, 58, 0.14);
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

html, body {
  background: var(--mg-paper);
  color: var(--mg-ink);
  font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* 宣纸纹理背景（与 Vue 版 tokens.css 一致） */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    radial-gradient(rgba(31, 77, 58, 0.05) 1px, transparent 1px),
    radial-gradient(rgba(184, 57, 46, 0.04) 1px, transparent 1px),
    linear-gradient(180deg, rgba(245, 239, 225, 0.4) 0%, rgba(236, 227, 204, 0.3) 100%);
  background-size: 24px 24px, 36px 36px, 100% 100%;
  background-position: 0 0, 12px 18px, 0 0;
  opacity: 0.7;
}

body > * { position: relative; z-index: 1; }

h1, h2, h3, h4 {
  font-family: 'Noto Serif SC', 'Source Han Serif SC', SimSun, serif;
  letter-spacing: 0.02em;
  margin: 0;
}
p { margin: 0; }
a { color: inherit; }

/* ==================== Layout container ==================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 16px;
  padding-right: 16px;
}
.main-pad { padding-top: 40px; padding-bottom: 56px; }
@media (min-width: 768px) {
  .main-pad { padding-top: 56px; padding-bottom: 72px; }
}

/* ==================== Header / Footer ==================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(6px);
  background: rgba(245, 239, 225, 0.85);
  border-bottom: 1px solid var(--mg-line);
}
.site-header-inner {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.site-header .brand img {
  height: 40px;
  width: auto;
  display: block;
  border-radius: 12px;
}
.nav-desktop { display: none; align-items: center; gap: 4px; }
@media (min-width: 768px) {
  .nav-desktop { display: flex; }
}
.nav-link {
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  color: var(--mg-muted);
  transition: color 0.15s, background-color 0.15s;
}
.nav-link:hover { color: var(--mg-mo-deep); }
.nav-link.is-active {
  color: var(--mg-mo-deep);
  background: rgba(31, 77, 58, 0.08);
}
.nav-burger {
  display: inline-flex;
  padding: 8px;
  border-radius: 4px;
  border: none;
  background: transparent;
  color: var(--mg-mo-deep);
  cursor: pointer;
}
@media (min-width: 768px) { .nav-burger { display: none; } }

.mobile-menu {
  display: none;
  border-top: 1px solid var(--mg-line);
  background: var(--mg-paper);
  padding: 12px 16px;
}
.mobile-menu.is-open { display: block; }
.mobile-menu a {
  display: block;
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 14px;
  color: var(--mg-muted);
  text-decoration: none;
}
.mobile-menu a.is-active {
  color: var(--mg-mo-deep);
  background: rgba(31, 77, 58, 0.08);
}

.site-footer {
  margin-top: 96px;
  border-top: 1px solid var(--mg-line);
  background: rgba(31, 77, 58, 0.04);
}
.site-footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding: 40px 16px;
  font-size: 14px;
}
@media (min-width: 768px) {
  .site-footer-top {
    grid-template-columns: 2fr 1fr 1fr;
    padding: 40px 16px;
  }
}
.site-footer-top h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--mg-mo-deep);
}
.site-footer-top ul { list-style: none; padding: 0; margin: 0; }
.site-footer-top ul li { margin-bottom: 8px; }
.site-footer-top a {
  color: var(--mg-muted);
  text-decoration: none;
}
.site-footer-top a:hover { color: var(--mg-mo-deep); }
.site-footer-bottom {
  border-top: 1px solid var(--mg-line);
  padding: 16px;
  font-size: 12px;
  color: var(--mg-muted);
}

/* ==================== Typography ==================== */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 10px;
  border: 1px solid var(--mg-zhu);
  color: var(--mg-zhu);
  font-family: 'Noto Serif SC', serif;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.1em;
  border-radius: 2px;
  background: rgba(184, 57, 46, 0.04);
}
.eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mg-zhu);
}
.h1 {
  font-size: 30px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--mg-mo-deep);
}
@media (min-width: 768px) {
  .h1 { font-size: 36px; }
}
.h2 {
  font-size: 24px;
  font-weight: 600;
  line-height: 1.25;
  color: var(--mg-mo-deep);
}
@media (min-width: 768px) {
  .h2 { font-size: 30px; }
}
.h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--mg-mo-deep);
}
.lede {
  margin-top: 12px;
  color: var(--mg-muted);
  font-size: 16px;
  line-height: 1.7;
}
.text-muted { color: var(--mg-muted); }
.text-mo { color: var(--mg-mo-deep); }
.text-zhu { color: var(--mg-zhu); }
.text-sm { font-size: 14px; }
.text-xs { font-size: 12px; }

/* ==================== Layout helpers ==================== */
.grid { display: grid; }
.flex { display: flex; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.flex-wrap { flex-wrap: wrap; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-5 { gap: 20px; }
.gap-6 { gap: 24px; }
.gap-8 { gap: 32px; }
.grid-cols-1 { grid-template-columns: 1fr; }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (min-width: 640px) {
  .sm-grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (min-width: 768px) {
  .md-grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md-grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .md-grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .md-grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .md-col-span-5 { grid-column: span 5 / span 5; }
  .md-col-span-7 { grid-column: span 7 / span 7; }
  .md-col-span-3 { grid-column: span 3 / span 3; }
  .md-col-span-9 { grid-column: span 9 / span 9; }
}
@media (min-width: 1024px) {
  .lg-grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg-grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .lg-col-span-3 { grid-column: span 3 / span 3; }
  .lg-col-span-5 { grid-column: span 5 / span 5; }
  .lg-col-span-7 { grid-column: span 7 / span 7; }
  .lg-col-span-9 { grid-column: span 9 / span 9; }
}
.flex-1 { flex: 1 1 0%; }
.shrink-0 { flex-shrink: 0; }
.hidden { display: none; }
@media (min-width: 768px) { .md-block { display: block; } }

/* ==================== Section spacing ==================== */
.section { padding: 48px 0; }
@media (min-width: 768px) { .section { padding: 64px 0; } }
.section-head { text-align: center; margin-bottom: 40px; }
.section-head .lede { max-width: 640px; margin-left: auto; margin-right: auto; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mt-5 { margin-top: 20px; }
.mt-6 { margin-top: 24px; }
.mt-8 { margin-top: 32px; }
.mt-10 { margin-top: 40px; }
.mt-12 { margin-top: 48px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mb-8 { margin-bottom: 32px; }
.mb-10 { margin-bottom: 40px; }
.mb-12 { margin-bottom: 48px; }
.py-3 { padding-top: 12px; padding-bottom: 12px; }
.py-4 { padding-top: 16px; padding-bottom: 16px; }
.py-5 { padding-top: 20px; padding-bottom: 20px; }
.py-6 { padding-top: 24px; padding-bottom: 24px; }
.p-5 { padding: 20px; }
.p-6 { padding: 24px; }
.px-5 { padding-left: 20px; padding-right: 20px; }
.py-2.5 { padding-top: 10px; padding-bottom: 10px; }

/* ==================== Card / Button ==================== */
.card {
  background: var(--mg-paper);
  border: 1px solid var(--mg-line);
  border-radius: 8px;
  overflow: hidden;
}
.card-body { padding: 20px; }
.card-title { color: var(--mg-mo-deep); }
.card-shadow { box-shadow: 0 6px 24px rgba(31, 77, 58, 0.08); }

.rounded { border-radius: 4px; }
.rounded-md { border-radius: 6px; }
.rounded-lg { border-radius: 8px; }
.rounded-xl { border-radius: 12px; }
.rounded-2xl { border-radius: 16px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 4px;
  font-weight: 500;
  text-decoration: none;
  transition: background-color 0.15s, color 0.15s, border-color 0.15s;
  cursor: pointer;
  border: 1px solid transparent;
  font-size: 16px;
}
.btn-sm { padding: 8px 16px; font-size: 14px; }
.btn-zhu {
  background: var(--mg-zhu);
  color: #fff;
  border-color: var(--mg-zhu);
}
.btn-zhu:hover { background: var(--mg-mo); border-color: var(--mg-mo); }
.btn-ghost {
  background: transparent;
  color: var(--mg-mo);
  border-color: var(--mg-mo);
}
.btn-ghost:hover {
  background: var(--mg-mo);
  color: #fff;
}

.mg-link {
  color: var(--mg-mo);
  text-decoration: none;
  border-bottom: 1px dashed transparent;
  transition: border-color 0.15s;
}
.mg-link:hover { border-bottom-color: var(--mg-mo); }

/* 回纹分割线 */
.mg-divider {
  height: 12px;
  background:
    radial-gradient(circle at 6px 6px, var(--mg-mo) 2px, transparent 2.5px) 0 0 / 12px 12px,
    linear-gradient(90deg, transparent, var(--mg-mo) 20%, var(--mg-mo) 80%, transparent);
  -webkit-mask: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
          mask: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
  opacity: 0.4;
  margin: 32px 0;
}
@media (min-width: 768px) { .mg-divider { margin: 48px 0; } }

/* PageShell 顶部 */
.page-header { margin-bottom: 32px; }
@media (min-width: 768px) { .page-header { margin-bottom: 48px; } }
.page-header.text-center { text-align: center; max-width: 672px; margin-left: auto; margin-right: auto; }
.page-header .eyebrow { margin-bottom: 12px; }
.page-header .lede { font-size: 16px; }
@media (min-width: 768px) { .page-header .lede { font-size: 18px; } }

/* 锚点滚动偏移 */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

/* 表格 */
.mg-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.mg-table th, .mg-table td {
  border: 1px solid var(--mg-line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}
.mg-table th {
  background: rgba(31, 77, 58, 0.05);
  font-weight: 600;
  color: var(--mg-mo-deep);
  width: 160px;
}

/* 文档正文 */
.prose-doc { font-size: 15px; line-height: 1.8; color: var(--mg-ink); }
.prose-doc h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--mg-mo-deep);
  margin-bottom: 8px;
}
.prose-doc p { margin-bottom: 16px; color: var(--mg-muted); }
.prose-doc ul { list-style: none; padding: 0; margin: 12px 0; }
.prose-doc ul li {
  padding: 4px 0;
  font-size: 14px;
  color: var(--mg-muted);
}
.prose-doc .contact-box {
  border-left: 2px solid var(--mg-zhu);
  padding-left: 16px;
  font-size: 14px;
}

/* 侧栏目录 */
.side-toc {
  background: var(--mg-paper);
  border: 1px solid var(--mg-line);
  border-radius: 8px;
  padding: 12px;
  font-size: 14px;
}
.side-toc .toc-title {
  font-family: 'Noto Serif SC', serif;
  font-weight: 600;
  color: var(--mg-mo-deep);
  padding: 0 8px;
  margin-bottom: 8px;
}
.side-toc ul { list-style: none; padding: 0; margin: 0; }
.side-toc ul li { margin: 2px 0; }
.side-toc ul li a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 8px;
  border-radius: 4px;
  color: var(--mg-muted);
  text-decoration: none;
}
.side-toc ul li a:hover {
  background: rgba(31, 77, 58, 0.06);
  color: var(--mg-mo-deep);
}
.side-toc ul li a .chev { opacity: 0.5; font-size: 12px; }
.side-toc .cta {
  display: block;
  text-align: center;
  margin-top: 12px;
  padding: 8px 12px;
  font-size: 14px;
}

@media (min-width: 1024px) {
  .sticky-aside { position: sticky; top: 96px; align-self: start; }
}

/* feature 九宫格卡 */
.fac-card {
  display: block;
  background: var(--mg-paper);
  border: 1px solid var(--mg-line);
  border-radius: 8px;
  padding: 20px;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}
.fac-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(31, 77, 58, 0.08);
}
.fac-card .icon-wrap {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  display: grid;
  place-items: center;
  background: rgba(31, 77, 58, 0.08);
  color: var(--mg-mo-deep);
}
.fac-card .chev-link {
  margin-top: 12px;
  font-size: 12px;
  color: var(--mg-mo);
  opacity: 0;
  transition: opacity 0.15s;
}
.fac-card:hover .chev-link { opacity: 1; }

/* Highlight card */
.hl-card {
  background: var(--mg-paper);
  border: 1px solid var(--mg-line);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 6px 24px rgba(31, 77, 58, 0.08);
  display: flex;
  flex-direction: column;
}
.hl-card .img-wrap {
  border-bottom: 1px solid var(--mg-line);
}
.hl-card .body { padding: 20px; }
.hl-card .tag {
  font-size: 10px;
  letter-spacing: 0.25em;
  color: var(--mg-zhu);
  font-weight: 600;
}
.hl-card .title {
  font-family: 'Noto Serif SC', serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--mg-mo-deep);
  margin-top: 8px;
}
.hl-card .desc {
  margin-top: 8px;
  font-size: 14px;
  color: var(--mg-muted);
  line-height: 1.7;
}

/* Scenario card */
.scn-card {
  background: var(--mg-paper);
  border: 1px solid var(--mg-line);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.scn-card .body { padding: 20px; }
.scn-card .role {
  font-family: 'Noto Serif SC', serif;
  font-size: 16px;
  font-weight: 600;
  color: var(--mg-mo-deep);
}
.scn-card .pain { margin-top: 8px; font-size: 12px; color: var(--mg-zhu); }
.scn-card .desc { margin-top: 8px; font-size: 14px; color: var(--mg-muted); line-height: 1.7; }

/* 图片占比容器 */
.img-43 { aspect-ratio: 4 / 3; width: 100%; display: block; object-fit: cover; }
.img-34 { aspect-ratio: 3 / 4; width: 100%; display: block; object-fit: cover; }

/* 资质条 */
.qual-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  border: 1px solid var(--mg-line);
  border-radius: 8px;
  padding: 20px;
  background: rgba(31, 77, 58, 0.04);
}
@media (min-width: 768px) {
  .qual-row { grid-template-columns: repeat(3, 1fr); gap: 24px; }
}
.qual-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.qual-item .icon-wrap {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  display: grid;
  place-items: center;
  background: rgba(31, 77, 58, 0.10);
  color: var(--mg-mo-deep);
  flex-shrink: 0;
}
.qual-item .label {
  font-size: 12px;
  letter-spacing: 0.25em;
  color: var(--mg-zhu);
  font-weight: 600;
}
.qual-item .value {
  font-size: 14px;
  color: var(--mg-mo-deep);
  margin-top: 4px;
}

/* CTA 块 */
.cta-band {
  border: 1px solid var(--mg-line);
  border-radius: 8px;
  padding: 24px;
  background: var(--mg-paper);
  overflow: hidden;
}
@media (min-width: 768px) {
  .cta-band {
    display: flex;
    gap: 16px;
    align-items: flex-start;
  }
}
.cta-band .support-img {
  width: 128px;
  height: auto;
  flex-shrink: 0;
}
@media (min-width: 768px) { .cta-band .support-img { width: 160px; align-self: flex-end; } }

/* 联系卡 */
.contact-card {
  border: 1px solid var(--mg-line);
  border-radius: 12px;
  padding: 20px;
  background: var(--mg-paper);
}
.contact-card .head {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--mg-mo);
  margin-bottom: 12px;
}
.contact-card .head .label {
  font-size: 12px;
  letter-spacing: 0.2em;
  font-weight: 600;
}
.contact-card .value {
  display: block;
  font-family: 'Noto Serif SC', serif;
  font-size: 18px;
  color: var(--mg-mo-deep);
  text-decoration: none;
}
.contact-card .value.is-muted { color: var(--mg-muted); }
.contact-card .hint {
  font-size: 12px;
  color: var(--mg-muted);
  margin-top: 4px;
}

/* FAQ */
.faq-list {
  border: 1px solid var(--mg-line);
  border-radius: 8px;
  background: var(--mg-paper);
}
.faq-list details {
  padding: 20px;
  border-bottom: 1px solid var(--mg-line);
}
.faq-list details:last-child { border-bottom: none; }
.faq-list summary {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 500;
  color: var(--mg-mo-deep);
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary .plus {
  color: var(--mg-zhu);
  font-size: 20px;
  transition: transform 0.2s;
}
.faq-list details[open] summary .plus { transform: rotate(45deg); }
.faq-list details .answer {
  margin-top: 12px;
  font-size: 14px;
  color: var(--mg-muted);
  line-height: 1.7;
}

/* 商务合作 */
.biz-email-card {
  border: 1px solid var(--mg-line);
  border-radius: 12px;
  padding: 24px;
  background: var(--mg-paper);
  box-shadow: 0 6px 24px rgba(31, 77, 58, 0.08);
}
.biz-email-card .row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.biz-email-card .icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: rgba(184, 57, 46, 0.10);
  color: var(--mg-zhu);
}
.biz-email-card .label {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--mg-zhu);
  font-weight: 600;
}
.biz-email-card .email-link {
  font-family: 'Noto Serif SC', serif;
  font-size: 24px;
  font-weight: 600;
  color: var(--mg-mo-deep);
  text-decoration: none;
  margin-top: 4px;
  display: inline-block;
}
@media (min-width: 768px) { .biz-email-card .email-link { font-size: 28px; } }

.topic-list { list-style: none; padding: 0; margin: 0; }
.topic-list li {
  border: 1px solid var(--mg-line);
  border-radius: 6px;
  padding: 12px 16px;
  margin-bottom: 12px;
}
.topic-list li:last-child { margin-bottom: 0; }
.topic-list .topic-title {
  font-weight: 500;
  color: var(--mg-mo-deep);
  font-size: 14px;
}
.topic-list .topic-desc {
  font-size: 12px;
  color: var(--mg-muted);
  margin-top: 4px;
}

.note-box {
  border: 1px solid var(--mg-line);
  border-radius: 8px;
  padding: 20px;
  background: rgba(31, 77, 58, 0.04);
  font-size: 14px;
  color: var(--mg-muted);
}
.note-box h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--mg-mo-deep);
  margin-bottom: 8px;
}
.note-box ul { list-style: disc; padding-left: 20px; margin: 0; }
.note-box ul li { margin-bottom: 4px; }