:root {
  --ink: #171717;
  --body: #3c3a36;
  --muted: #6f6b65;
  --line: #d8d3c9;
  --line-dark: #b9b3a8;
  --paper: #f5f2ec;
  --paper-deep: #ebe6dc;
  --blue: #1d4f7c;
  --blue-bright: #2f6f9f;
  --white: #fff;
  --gutter: 40px;
  --max: 1320px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--white);
  color: var(--body);
  font: 15px/1.8 "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--blue); }
button { font: inherit; }

.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; }

main.single-post { padding: 72px 0 88px; }

.article-header { border-top: 1px solid var(--ink); padding-top: 24px; }

.article-header h1 { max-width: 16em; margin: 16px 0 0; font-size: 50px; line-height: 1.14; font-weight: 300; }

.article-meta { margin-top: 16px; color: var(--muted); font-size: 11.5px; }

.article-content { max-width: 52em; margin: 48px 0 0; font-size: 15px; line-height: 1.9; }

.article-content h2 { margin: 44px 0 16px; font-size: 27px; font-weight: 300; }

.article-content a { color: var(--blue); text-decoration: underline; text-underline-offset: 4px; }

.article-image { margin: 42px 0 0; }

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 248px;
  gap: 88px;
  align-items: start;
  margin-top: 46px;
}

.article-main { min-width: 0; max-width: 780px; }

.article-page .article-content { max-width: 100%; margin: 0; }
.article-page .article-content > :first-child { margin-top: 0; }
.article-page .article-image { margin: 0 0 40px; }

.article-aside { position: sticky; top: 32px; border-top: 1px solid var(--ink); }

.article-aside-block { padding: 18px 0; border-bottom: 1px solid var(--line); }
.article-aside-block:first-child { padding-top: 14px; }

.aside-label {
  margin: 0 0 8px;
  color: var(--muted);
  font: 10.5px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.aside-value { margin: 0; color: var(--ink); font-size: 13px; }
.aside-note { margin: 6px 0 0; color: var(--muted); font-size: 11.5px; line-height: 1.7; }

.aside-link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-top: 1px solid var(--line);
  color: var(--ink);
  font-size: 12.5px;
  line-height: 1.55;
}

.article-aside-block .aside-link:first-of-type { border-top: 0; padding-top: 0; }
.aside-link:hover { color: var(--blue); }

.container {
  width: min(var(--max), calc(100% - var(--gutter) * 2));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 10px 16px;
  z-index: 999;
}

.skip-link:focus { left: 12px; top: 12px; }

/* Utility */
.utility-bar {
  background: var(--ink);
  color: #a8a39a;
  font-size: 11.5px;
}

.utility-inner {
  min-height: 34px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.utility-right {
  display: flex;
  align-items: center;
  gap: 18px;
}

.utility-right a:hover,
.utility-right a[aria-current="true"] { color: #fff; }

.utility-divider {
  width: 1px;
  height: 10px;
  background: rgba(255, 255, 255, .2);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .97);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.header-inner {
  min-height: 86px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 56px;
}

.brand img { width: 132px; height: auto; }

.site-nav ul {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 34px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
}

.site-nav a {
  position: relative;
  display: inline-block;
  padding: 31px 0 28px;
  color: #33312d;
}

.site-nav a:hover { color: var(--blue); }

.site-nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }

.site-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: var(--ink);
}

.header-actions { display: flex; align-items: center; gap: 22px; }

.buy-link { color: var(--ink); font-size: 13px; }
.buy-link span { color: var(--muted); font-size: 11px; }
.buy-link:hover { color: var(--blue); }

.quote-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--ink);
  color: var(--ink);
  font-size: 13px;
}

.quote-link:hover { color: var(--blue); border-color: var(--blue); }

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--line-dark);
  background: transparent;
  cursor: pointer;
}

.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
  display: block;
  width: 18px;
  height: 1px;
  background: var(--ink);
  margin-inline: auto;
}

.menu-toggle span { position: relative; }
.menu-toggle span::before,
.menu-toggle span::after { content: ""; position: absolute; left: 0; }
.menu-toggle span::before { top: -5px; }
.menu-toggle span::after { top: 5px; }

/* Type */
.label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 11.5px;
}

.label::before {
  content: "";
  width: 28px;
  height: 1px;
  background: currentColor;
}

.label-light { color: #a8a39a; }

h1, h2, h3 { color: var(--ink); }

h1 {
  margin: 0;
  font-size: 60px;
  line-height: 1.14;
  letter-spacing: -.035em;
  font-weight: 300;
}

h2 {
  margin: 0;
  font-size: 34px;
  line-height: 1.3;
  letter-spacing: -.02em;
  font-weight: 300;
}

.lead {
  max-width: 30em;
  margin: 26px 0 0;
  font-size: 16px;
  line-height: 1.9;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  font-size: 13.5px;
  text-decoration: underline;
  text-underline-offset: 5px;
  text-decoration-thickness: 1px;
}

.text-link:hover { color: var(--blue); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 26px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: #fff;
  font-size: 13.5px;
}

.btn:hover { background: var(--blue); border-color: var(--blue); color: #fff; }

/* Hero */
.hero {
  padding: 88px 0 76px;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: 6fr 6fr;
  gap: 80px;
  align-items: center;
}

.hero-grid > * { min-width: 0; }

.hero-actions {
  display: flex;
  align-items: center;
  gap: 34px;
  margin-top: 36px;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin: 48px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--line-dark);
}

.hero-facts div { min-width: 0; }

.hero-facts dt {
  color: var(--ink);
  font-size: 21px;
  line-height: 1.2;
  letter-spacing: -.02em;
  white-space: nowrap;
}

.hero-facts dd {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 11.5px;
  white-space: nowrap;
}

.hero-visual { margin: 0; }

.visual-frame {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 470px;
  padding: 52px;
  background: var(--paper-deep);
}

.visual-frame img {
  width: min(100%, 430px);
  height: auto;
}

.hero-visual figcaption {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: 14px;
  color: var(--muted);
  font: 11px/1.6 ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* Capability index */
.capability { padding: 84px 0 76px; background: #fff; }

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 48px;
  margin-bottom: 42px;
}

.section-head > p {
  max-width: 30em;
  margin: 0;
  color: var(--muted);
  font-size: 12.5px;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 44px;
}

.capability-grid article {
  padding-top: 20px;
  border-top: 1px solid var(--ink);
}

.capability-grid h3 {
  margin: 0 0 22px;
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -.01em;
}

.capability-grid dl { margin: 0; }

.capability-grid dl div {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
}

.capability-grid dl div:first-child { border-top: 0; padding-top: 0; }

.capability-grid dt { color: var(--muted); font-size: 11px; }

.capability-grid dd {
  margin: 0;
  color: var(--body);
  font-size: 12.5px;
  line-height: 1.65;
}

/* Engineering */
.engineering {
  padding: 92px 0;
  background: var(--ink);
  color: #a8a39a;
}

.engineering-grid {
  display: grid;
  grid-template-columns: 6fr 6fr;
  gap: 72px;
  align-items: start;
}

.engineering-grid > * { min-width: 0; }

.board-figure { margin: 0; }

.board-figure img {
  width: 100%;
  padding: 24px;
  background: var(--paper-deep);
}

.board-figure figcaption {
  margin-top: 14px;
  color: #8b867d;
  font: 10.5px/1.6 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.engineering h2 {
  color: #f2efe8;
  font-size: 38px;
  line-height: 1.32;
}

.engineering-lead {
  max-width: 30em;
  margin: 20px 0 0;
  color: #a8a39a;
  font-size: 14.5px;
}

.steps {
  margin: 38px 0 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 18px;
  padding: 16px 0 18px;
  border-top: 1px solid rgba(255, 255, 255, .14);
}

.steps li:last-child { border-bottom: 1px solid rgba(255, 255, 255, .14); }

.steps > li > span {
  color: #8b867d;
  font: italic 13px/1.1 Georgia, "Songti SC", serif;
}

.steps h3 {
  margin: 0 0 4px;
  color: #e9e5dd;
  font-size: 14.5px;
  font-weight: 500;
}

.steps p { margin: 0; color: #9d988f; font-size: 12.5px; line-height: 1.7; }

/* Products */
.products { padding: 92px 0; background: var(--paper); }

.products-head { align-items: flex-start; }

.products-head h2 { font-size: 42px; }

.head-right { max-width: 31em; }

.head-right p { margin: 0 0 14px; color: var(--muted); font-size: 12.5px; }

.table-scroll {
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.product-table {
  width: 100%;
  min-width: 880px;
  border-collapse: collapse;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  font-size: 13px;
}

.product-table th,
.product-table td {
  padding: 15px 18px 15px 0;
  text-align: left;
  vertical-align: middle;
  border-bottom: 1px solid var(--line);
}

.product-table thead th {
  padding-top: 13px;
  padding-bottom: 13px;
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 400;
  border-bottom: 1px solid var(--line-dark);
}

.product-table tbody th {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink);
  white-space: nowrap;
}

.product-table tbody th a:hover { color: var(--blue); }

.product-table td { color: var(--body); }

.product-table td:nth-child(2) {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11.5px;
}

.product-table tbody tr:not(.group-row):hover { background: rgba(255, 255, 255, .55); }

.group-row th {
  padding-top: 38px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-dark);
  color: var(--muted);
  font-size: 11px;
  font-weight: 400;
}

.group-row:first-child th { padding-top: 18px; }

.scroll-hint {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 11px;
}

.buy-channels {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 26px;
  margin-top: 22px;
  padding-top: 15px;
  border-top: 1px solid var(--line-dark);
  font-size: 12px;
}

.buy-channels > span { color: var(--muted); font-size: 11px; }
.buy-channels a { color: var(--ink); text-decoration: underline; text-underline-offset: 4px; }
.buy-channels a:hover { color: var(--blue); }

/* Support */
.support { padding: 92px 0; background: #fff; }

.support .section-head h2 { font-size: 40px; }

.article-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
}

.article-col-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ink);
}

.article-col-head h3 { margin: 0; font-size: 15px; font-weight: 500; }
.article-col-head span { color: var(--muted); font: 10.5px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }

.article-list { margin: 0; padding: 0; list-style: none; }

.article-list li {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 14px;
  align-items: baseline;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}

.article-list li > span {
  color: var(--muted);
  font: italic 11px/1 Georgia, "Songti SC", serif;
}

.article-list a { color: var(--ink); font-size: 13.5px; line-height: 1.6; }
.article-list a:hover { color: var(--blue); }
.article-list em { color: var(--muted); font-size: 10.5px; font-style: normal; white-space: nowrap; }
.article-more { margin: 18px 0 0; text-align: right; }
.article-more .text-link { font-size: 12px; }

/* Inquiry */
.inquiry {
  padding: 92px 0;
  background: #fff;
  border-top: 1px solid var(--line);
}

.inquiry-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 80px;
  align-items: start;
}

.inquiry-grid > * { min-width: 0; }

.inquiry h2 { font-size: 40px; }

.inquiry-copy > p:not(.label) {
  max-width: 30em;
  margin: 20px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
}

.inquiry-contact { margin: 34px 0 0; }

.inquiry-contact div {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.inquiry-contact dt { color: var(--muted); font-size: 11px; }
.inquiry-contact dd { margin: 0; color: var(--ink); font-size: 14px; }
.inquiry-contact a { text-decoration: underline; text-underline-offset: 4px; }
.inquiry-contact a:hover { color: var(--blue); }

.inquiry-form {
  padding: 36px;
  background: var(--paper);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.inquiry-form label {
  display: block;
  margin-bottom: 20px;
  color: var(--muted);
  font-size: 11.5px;
}

.inquiry-form input[type="text"],
.inquiry-form input[type="email"],
.inquiry-form select,
.inquiry-form textarea {
  width: 100%;
  margin-top: 7px;
  padding: 9px 0;
  border: 0;
  border-bottom: 1px solid var(--line-dark);
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  font: 14px/1.5 "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  outline: none;
}

.inquiry-form input:focus,
.inquiry-form select:focus,
.inquiry-form textarea:focus { border-bottom-color: var(--ink); }

.inquiry-form textarea {
  min-height: 96px;
  resize: vertical;
}

.inquiry-form select { appearance: none; }

.inquiry-form ::placeholder { color: #a09a90; }

.inquiry-form .consent {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin: 4px 0 0;
  font-size: 11px;
  line-height: 1.6;
}

.inquiry-form .consent input {
  width: 14px;
  height: 14px;
  margin: 2px 0 0;
  flex: none;
  accent-color: var(--blue);
}

.form-submit {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 24px;
}

.form-submit .btn { min-height: 44px; }

.form-status { margin: 0; color: var(--blue); font-size: 12px; }

.form-note { margin: 14px 0 0; color: var(--muted); font-size: 10.5px; }

/* OEM */
.oem {
  padding: 82px 0 64px;
  background: var(--paper);
  border-top: 1px solid var(--line-dark);
}

.oem-top {
  display: grid;
  grid-template-columns: 6fr 6fr;
  gap: 80px;
  align-items: start;
}

.oem-top > * { min-width: 0; }

.oem h2 { font-size: 44px; line-height: 1.26; }

.oem-copy p { max-width: 34em; margin: 4px 0 0; font-size: 14.5px; line-height: 1.85; }

.oem-contact {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-top: 26px;
}

.oem-contact a {
  color: var(--ink);
  font-size: 16px;
  text-decoration: underline;
  text-underline-offset: 5px;
  text-decoration-thickness: 1px;
}

.oem-contact a:hover { color: var(--blue); }

.oem-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin: 54px 0 0;
  padding: 0;
  list-style: none;
}

.oem-steps li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 0 18px;
  border-top: 1px solid var(--line-dark);
  color: var(--body);
  font-size: 12.5px;
}

.oem-steps span { color: var(--muted); font: italic 11px/1 Georgia, "Songti SC", serif; }

/* Product detail */
.product-detail { padding: 72px 0 0; }

.product-detail-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding-bottom: 62px;
  border-bottom: 1px solid var(--line);
}

.product-detail-head > * { min-width: 0; }

.product-detail-copy h1 { max-width: 12em; font-size: 52px; }

.product-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 26px;
  margin-top: 32px;
}

.product-detail-image {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 360px;
  margin: 0;
  padding: 44px;
  background: var(--paper-deep);
}

.product-detail-image img { width: min(100%, 540px); height: auto; }

.product-detail-body {
  display: grid;
  grid-template-columns: 270px 1fr;
  gap: 72px;
  padding: 62px 0;
  border-bottom: 1px solid var(--line);
}

.product-specs h2,
.product-faq h2,
.product-cta h2,
.comments-area h2 {
  margin: 0 0 24px;
  font-size: 26px;
  line-height: 1.35;
}

.product-specs dl { margin: 0; }

.product-specs dl div {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 14px;
  padding: 11px 0;
  border-top: 1px solid var(--line);
}

.product-specs dl div:first-child { padding-top: 0; border-top: 0; }
.product-specs dt { color: var(--muted); font-size: 11px; }
.product-specs dd { margin: 0; color: var(--ink); font-size: 12.5px; line-height: 1.65; }
.product-detail-body .article-content { margin: 0; }

.product-faq {
  max-width: 72em;
  padding: 58px 0;
  border-bottom: 1px solid var(--line);
}

.faq-list details { padding: 17px 0; border-top: 1px solid var(--line); }
.faq-list details:last-child { border-bottom: 1px solid var(--line); }
.faq-list summary { cursor: pointer; color: var(--ink); font-size: 14.5px; font-weight: 500; }
.faq-list p { margin: 13px 0 0; color: var(--body); font-size: 14px; line-height: 1.85; }

.product-cta {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: end;
  padding: 54px 0 88px;
}

.product-cta-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; }

.article-footer { margin-top: 42px; padding-top: 20px; border-top: 1px solid var(--line); }

/* Comments */
.comments-area {
  max-width: 52em;
  margin-top: 62px;
  padding-top: 30px;
  border-top: 1px solid var(--ink);
}

.comment-list { margin: 0; padding: 0; list-style: none; }
.comment-list li { padding: 19px 0; border-top: 1px solid var(--line); list-style: none; }
.comment-list .comment-body { color: var(--body); font-size: 14px; line-height: 1.8; }
.comment-list .comment-meta { color: var(--muted); font-size: 11px; }
.comment-list .comment-meta a { color: var(--muted); }
.comment-list .children { margin: 14px 0 0 26px; padding: 0; }
.comment-list .reply { margin-top: 6px; font-size: 11px; }
.comment-respond { margin-top: 34px; }
.comment-respond .comment-reply-title { color: var(--ink); font-size: 18px; font-weight: 500; }
.comment-note { color: var(--muted); font-size: 11px; }
.comment-form p { margin: 0 0 16px; }
.comment-form label { display: block; margin-bottom: 6px; color: var(--muted); font-size: 11px; }
.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
  width: 100%;
  padding: 10px 0;
  border: 0;
  border-bottom: 1px solid var(--line-dark);
  background: transparent;
  color: var(--ink);
  font: inherit;
  outline: none;
}
.comment-form input:focus,
.comment-form textarea:focus { border-bottom-color: var(--ink); }
.comment-form textarea { min-height: 120px; resize: vertical; }
.comment-form .submit {
  min-height: 44px;
  padding: 0 24px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-size: 13px;
}
.comment-form .submit:hover { background: var(--blue); border-color: var(--blue); }

/* Footer */
.site-footer { margin-top: 0; padding: 48px 0 22px; background: var(--ink); }

.footer-grid {
  display: grid;
  grid-template-columns: 2.4fr 1fr 1fr 1.2fr;
  gap: 48px;
}

.footer-brand strong {
  display: block;
  color: #fff;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: .08em;
}

.footer-brand > span {
  display: block;
  margin-top: 2px;
  color: #a8a39a;
  font-size: 11px;
  letter-spacing: .12em;
}

.footer-brand p {
  max-width: 26em;
  margin: 16px 0 0;
  color: #8f8a81;
  font-size: 12px;
  line-height: 1.7;
}

.footer-loc { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10.5px !important; }

.footer-grid h3 { margin: 2px 0 14px; color: #e9e5dd; font-size: 12px; font-weight: 500; }

.footer-grid ul { margin: 0; padding: 0; list-style: none; }
.footer-grid li { margin-bottom: 9px; }
.footer-grid li a { color: #8f8a81; font-size: 12px; }
.footer-grid li a:hover { color: #fff; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: 44px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  color: #8f8a81;
  font-size: 10.5px;
}

/* Content index */
.content-index { padding: 80px 0 96px; }

.index-layout {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 88px;
  align-items: start;
}

.index-intro { padding-top: 24px; border-top: 1px solid var(--ink); }
.index-intro-sticky { position: sticky; top: 32px; }

.index-intro h1 {
  margin: 16px 0 0;
  font-size: 44px;
  font-weight: 300;
  line-height: 1.14;
}

.index-intro .lead { margin: 24px 0 0; color: var(--body); font-size: 14px; line-height: 1.85; }

.index-meta {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
}

.index-meta a {
  display: block;
  margin-top: 10px;
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.index-meta a:hover { color: var(--blue); }

.index-main { min-width: 0; border-top: 1px solid var(--ink); }

.index-list-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font: 10.5px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.index-list { margin: 0; padding: 0; list-style: none; }

.index-list li {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
  gap: 32px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.index-item-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--muted);
  font: 10.5px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.index-item-meta span { color: var(--ink); }
.index-item-meta em { color: var(--muted); font-style: normal; }

.index-item-copy h2 {
  margin: 0;
  font-size: 23px;
  font-weight: 300;
  line-height: 1.4;
}

.index-item-copy h2 a:hover { color: var(--blue); }

.index-item-copy p {
  max-width: 52em;
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.75;
}

.index-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px;
  align-items: end;
  margin-top: 48px;
  padding: 24px 0 0;
  border-top: 1px solid var(--line-dark);
}

.index-cta h2 { margin: 8px 0 0; font-size: 26px; font-weight: 300; line-height: 1.35; }

/* Responsive */
@media (max-width: 1120px) {
  .header-inner { gap: 28px; }
  .site-nav ul { gap: 22px; }
  .hero-grid { grid-template-columns: 1fr 1fr; gap: 48px; }
  .hero { padding: 64px 0; }
  h1 { font-size: 50px; }
  .visual-frame { min-height: 400px; padding: 36px; }
  .capability-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .engineering-grid { grid-template-columns: 1fr; gap: 44px; }
  .board-figure { max-width: 680px; }
  .article-header h1 { font-size: 46px; }
  .article-layout { grid-template-columns: minmax(0, 1fr) 220px; gap: 56px; }
  .index-layout { grid-template-columns: 300px minmax(0, 1fr); gap: 56px; }
  .index-intro h1 { font-size: 40px; }
}

@media (max-width: 900px) {
  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    padding: 8px var(--gutter) 18px;
    background: #fff;
    border-bottom: 1px solid var(--line);
  }

  .site-nav.is-open { display: block; }
  .site-nav ul { display: block; }
  .site-nav li { border-bottom: 1px solid var(--line); }
  .site-nav a { display: block; padding: 12px 0; }
  .site-nav a[aria-current="page"]::after { display: none; }
  .menu-toggle { display: block; }

  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { max-width: 720px; }
  .hero-visual { max-width: 720px; }
  .visual-frame { min-height: 0; padding: 44px; }
  .article-grid { grid-template-columns: 1fr; gap: 44px; }
  .inquiry-grid { grid-template-columns: 1fr; gap: 36px; }
  .oem-top { grid-template-columns: 1fr; gap: 32px; }
  .product-detail-head { grid-template-columns: 1fr; gap: 36px; }
  .product-detail-body { grid-template-columns: 1fr; gap: 42px; }
  .product-cta { grid-template-columns: 1fr; align-items: start; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .article-layout { grid-template-columns: 1fr; gap: 48px; }
  .article-main { max-width: none; }
  .article-aside {
    position: static;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0 24px;
  }
  .index-layout { grid-template-columns: 1fr; gap: 48px; }
  .index-intro-sticky { position: static; }
  .index-intro h1 br { display: none; }
}

@media (max-width: 720px) {
  :root { --gutter: 20px; }

  .utility-bar { font-size: 10.5px; }
  .utility-inner { min-height: 32px; }
  .utility-inner > span { display: none; }
  .utility-right { width: 100%; justify-content: space-between; gap: 12px; }
  .utility-right a[href^="mailto"] { display: none; }
  .utility-divider { display: none; }

  .header-inner { min-height: 68px; gap: 16px; }
  .brand img { width: 112px; }
  .quote-link { display: none; }
  .buy-link { font-size: 12px; }

  .hero { padding: 44px 0 40px; }
  h1 { font-size: 36px; line-height: 1.2; }
  .lead { margin-top: 20px; font-size: 14.5px; line-height: 1.85; }
  .hero-actions { gap: 22px; margin-top: 28px; }
  .hero-facts { grid-template-columns: 1fr 1fr; gap: 20px 16px; margin-top: 34px; }
  .hero-facts dt { font-size: 18px; }
  .visual-frame { padding: 28px; }
  .hero-visual figcaption { display: block; }
  .hero-visual figcaption span { display: block; margin-top: 4px; }
  .product-detail { padding-top: 46px; }
  .product-detail-copy h1 { font-size: 36px; }
  .product-detail-image { min-height: 0; padding: 28px; }
  .product-detail-body { padding: 44px 0; }
  .product-faq { padding: 42px 0; }
  .product-cta { padding: 42px 0 62px; }
  .comments-area { margin-top: 44px; padding-top: 24px; }
  main.single-post { padding: 48px 0 64px; }
  .article-header h1 { font-size: 36px; }
  .article-layout { gap: 36px; margin-top: 32px; }
  .article-page .article-image { margin-bottom: 28px; }
  .article-content h2 { margin: 36px 0 14px; font-size: 24px; }
  .article-aside { display: block; margin-top: 4px; }

  .capability { padding: 52px 0 46px; }
  .section-head { display: block; margin-bottom: 28px; }
  .section-head > p { margin-top: 12px; }
  h2 { font-size: 27px; }
  .capability-grid { grid-template-columns: 1fr; gap: 28px; }

  .engineering { padding: 56px 0; }
  .engineering h2 { font-size: 28px; }
  .board-figure img { padding: 14px; }
  .steps { margin-top: 28px; }

  .products { padding: 56px 0; }
  .products-head h2 { font-size: 32px; }
  .head-right { margin-top: 14px; }
  .head-right p { margin-bottom: 10px; }
  .table-scroll { overflow: visible; }
  .product-table {
    display: block;
    min-width: 0;
    border-top-color: var(--ink);
  }
  .product-table thead { display: none; }
  .product-table tbody { display: block; }
  .product-table tr {
    display: block;
    padding: 18px 0 14px;
    border-bottom: 1px solid var(--line);
  }
  .product-table tbody th,
  .product-table td {
    display: block;
    padding: 0;
    border: 0;
  }
  .product-table tbody th {
    margin-bottom: 8px;
    font-size: 15px;
    font-weight: 500;
  }
  .product-table td {
    display: grid;
    grid-template-columns: 58px 1fr;
    gap: 12px;
    padding: 4px 0;
    font-size: 12.5px;
  }
  .product-table td::before {
    color: var(--muted);
    font-size: 10.5px;
  }
  .product-table td:nth-child(2)::before { content: "平台"; }
  .product-table td:nth-child(3)::before { content: "网络"; }
  .product-table td:nth-child(4)::before { content: "存储"; }
  .product-table td:nth-child(5)::before { content: "形态"; }
  .product-table td:nth-child(2) {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 11.5px;
  }
  .product-table .group-row {
    padding: 30px 0 0;
    border-bottom: 1px solid var(--line-dark);
  }
  .product-table .group-row:first-child { padding-top: 16px; }
  .product-table .group-row th {
    padding: 0 0 9px;
    border: 0;
    font-size: 11px;
  }
  .scroll-hint { display: none; }
  .buy-channels { display: grid; gap: 6px; }

  .support { padding: 56px 0; }
  .support .section-head h2 { font-size: 30px; }
  .article-list li { grid-template-columns: 28px 1fr; gap: 10px; }
  .article-list em { grid-column: 2; }

  .content-index { padding: 48px 0 62px; }
  .index-intro h1 { font-size: 34px; }
  .index-meta { margin-top: 24px; }
  .index-main { margin-top: 4px; }
  .index-list li { grid-template-columns: 1fr; gap: 10px; padding: 20px 0; }
  .index-item-meta { flex-direction: row; flex-wrap: wrap; gap: 6px 14px; }
  .index-item-copy h2 { font-size: 20px; }
  .index-item-copy p { font-size: 13px; }
  .index-cta { display: block; margin-top: 36px; }
  .index-cta h2 { font-size: 24px; }
  .index-cta .text-link { display: inline-block; margin-top: 18px; }

  .inquiry { padding: 56px 0; }
  .inquiry h2 { font-size: 30px; }
  .inquiry-form { padding: 26px 18px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .form-submit { align-items: flex-start; flex-direction: column; gap: 10px; }

  .oem { padding-top: 52px; }
  .oem h2 { font-size: 32px; }
  .oem-contact { display: block; }
  .oem-contact a { display: block; margin-top: 10px; font-size: 15px; }
  .oem-steps { grid-template-columns: 1fr 1fr; gap: 0 24px; margin-top: 36px; }

  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { display: block; }
  .footer-bottom span { display: block; margin-top: 5px; }
}