*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --bg: #ffffff;
  --bg-soft: #f5f5f5;
  --bg-muted: #ececec;
  --ink: #111111;
  --ink-soft: #333333;
  --muted: #666666;
  --line: #dedede;
  --dark: #1a1e24;
  --dark-2: #141820;
  --red: #d60012;
  --red-dark: #a80000;
  --white: #ffffff;
  --max: 1200px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.7;
}

body.nav-open,
body.modal-open {
  overflow: hidden;
}

img {
  display: block;
  max-width: 100%;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 0 56px;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 10px rgba(0, 0, 0, 0.06);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  font-size: 22px;
  font-weight: 800;
}

.nav-logo img {
  width: 158px;
  height: 58px;
  object-fit: contain;
  border: 0;
}

.nav-menu {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 0;
  flex: 1 1 auto;
  height: 100%;
}

.nav-menu > a,
.nav-item > a {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 13px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.nav-menu > a:hover,
.nav-item:hover > a {
  color: var(--red);
}

.nav-item {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 76px;
  left: 0;
  min-width: 178px;
  display: none;
  padding: 8px 0;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}

.nav-item:hover .dropdown-menu {
  display: block;
}

.dropdown-menu a,
.dropdown-item-disabled {
  display: block;
  padding: 10px 18px;
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
}

.dropdown-menu a:hover {
  color: var(--red);
  background: var(--bg-soft);
}

.dropdown-item-disabled {
  color: #b0b0b0;
  cursor: not-allowed;
}

.dropdown-item-disabled em {
  margin-left: 8px;
  padding: 1px 6px;
  color: #999;
  background: #f0f0f0;
  font-style: normal;
  font-size: 11px;
  font-weight: 600;
}

.btn-primary,
.btn-secondary,
.form-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 24px;
  border: 0;
  font-weight: 800;
  font-size: 14px;
}

.btn-primary,
.form-submit {
  color: var(--white);
  background: var(--red);
}

.btn-primary:hover,
.form-submit:hover {
  background: var(--red-dark);
}

.nav-hotline {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  column-gap: 9px;
  min-width: 168px;
  min-height: 54px;
  padding: 8px 14px 8px 16px;
  color: var(--ink);
  background: linear-gradient(135deg, #ffffff 0%, #f7f9fb 100%);
  border: 1px solid rgba(214, 0, 18, 0.25);
  border-left: 4px solid var(--red);
  box-shadow: 0 10px 24px rgba(20, 24, 32, 0.08);
}

.nav-hotline::after {
  display: inline-flex;
  grid-row: 1 / span 3;
  grid-column: 2;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  color: var(--white);
  background: var(--red);
  border-radius: 50%;
  content: "☎";
  font-size: 20px;
  line-height: 1;
}

.nav-hotline span,
.nav-hotline strong,
.nav-hotline em {
  grid-column: 1;
  line-height: 1.05;
}

.nav-hotline span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 900;
}

.nav-hotline strong {
  margin-top: 3px;
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 21px;
  font-weight: 900;
  letter-spacing: 0;
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
  white-space: nowrap;
}

.nav-hotline em {
  display: inline-flex;
  width: fit-content;
  margin-top: 4px;
  padding: 2px 6px;
  color: var(--red);
  background: rgba(214, 0, 18, 0.08);
  font-size: 10px;
  font-style: normal;
  font-weight: 900;
}

.nav-hotline:hover {
  border-color: rgba(214, 0, 18, 0.5);
  box-shadow: 0 14px 30px rgba(20, 24, 32, 0.12);
}

.btn-secondary {
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line);
}

.btn-secondary:hover {
  border-color: var(--ink);
}

.btn-primary.light {
  color: var(--red);
  background: var(--white);
}

.btn-primary.light:hover {
  color: var(--white);
  background: var(--ink);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background: var(--white);
  border: 1px solid var(--line);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: calc(100vh - 76px);
  margin-top: 76px;
  background: var(--bg-soft);
}

.hero-image {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  background: var(--bg-muted);
  border-right: 1px solid var(--line);
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 700ms ease, visibility 700ms ease;
}

.hero-slide.is-active {
  opacity: 1;
  visibility: visible;
}

.hero-slide::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='170' height='98' viewBox='0 0 170 98'%3E%3Cg transform='rotate(-24 85 49)'%3E%3Ctext x='85' y='55' text-anchor='middle' font-size='16' font-family='PingFang SC,Microsoft YaHei,sans-serif' font-weight='800' fill='%23ffffff' fill-opacity='0.24' stroke='%23000000' stroke-opacity='0.14' stroke-width='0.8'%3E%E5%A4%AA%E5%8E%9F%E5%B8%82%E4%B8%89%E9%87%91%E5%A8%81%3C/text%3E%3C/g%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 170px 98px;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-caption {
  position: absolute;
  left: 36px;
  bottom: 34px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 8px 18px;
  background: rgba(12, 16, 22, 0.82);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
}

.hero-dots {
  position: absolute;
  right: 34px;
  bottom: 38px;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-dot {
  width: 32px;
  height: 4px;
  padding: 0;
  border: 0;
  background: rgba(255, 255, 255, 0.58);
  cursor: pointer;
  transition: width 180ms ease, background 180ms ease;
}

.hero-dot.is-active {
  width: 46px;
  background: var(--red);
}

.hero-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 64px;
}

.hero-tag,
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--red);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1.5px;
}

.hero-tag::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--red);
}

.hero-title {
  margin: 0 0 26px;
  color: var(--ink);
  font-size: 60px;
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: 0;
}

.hero-title em {
  display: block;
  color: var(--red);
  font-style: normal;
}

.hero-subtitle {
  max-width: 560px;
  margin: 0 0 36px;
  color: var(--muted);
  font-size: 16px;
}

.hero-spec {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-bottom: 36px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.hero-spec div {
  padding: 22px 18px 22px 0;
}

.hero-spec strong,
.hero-spec span {
  display: block;
}

.hero-spec strong {
  margin-bottom: 4px;
  font-size: 20px;
  font-weight: 900;
}

.hero-spec span {
  color: var(--muted);
  font-size: 12px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  color: var(--white);
  background: var(--dark);
  border-top: 4px solid var(--red);
}

.stats-item {
  padding: 42px 48px;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.stats-item:last-child {
  border-right: 0;
}

.stats-item strong,
.stats-item span {
  display: block;
}

.stats-item strong {
  color: var(--red);
  font-size: clamp(34px, 4vw, 58px);
  font-weight: 900;
  line-height: 1;
}

.stats-item span {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
}

.section {
  padding: 92px 56px;
}

.section-header {
  max-width: var(--max);
  margin: 0 auto 52px;
}

.section-title {
  max-width: 760px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(30px, 3.5vw, 50px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: 0;
}

.section-desc {
  max-width: 620px;
  margin: 16px 0 0;
  color: var(--muted);
}

.products {
  background: var(--bg);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  max-width: var(--max);
  margin: 0 auto;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.product-card {
  min-width: 0;
  background: var(--white);
  transition: background 0.2s ease, transform 0.2s ease;
}

.product-card:hover {
  background: var(--bg-soft);
  transform: translateY(-2px);
}

.product-image {
  position: relative;
  height: 172px;
  margin: 0;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-image::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='150' height='86' viewBox='0 0 150 86'%3E%3Cg transform='rotate(-24 75 43)'%3E%3Ctext x='75' y='48' text-anchor='middle' font-size='15' font-family='PingFang SC,Microsoft YaHei,sans-serif' font-weight='800' fill='%23ffffff' fill-opacity='0.26' stroke='%23000000' stroke-opacity='0.16' stroke-width='0.8'%3E%E5%A4%AA%E5%8E%9F%E5%B8%82%E4%B8%89%E9%87%91%E5%A8%81%3C/text%3E%3C/g%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 150px 86px;
}

.product-body {
  padding: 24px 20px 26px;
}

.product-name {
  margin-bottom: 8px;
  font-size: 17px;
  font-weight: 900;
  line-height: 1.35;
}

.product-spec {
  margin-bottom: 14px;
  color: var(--red);
  font-size: 12px;
  font-weight: 800;
}

.product-body p {
  min-height: 90px;
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 13px;
}

.product-body a {
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
}

.product-body a::after {
  content: " →";
  color: var(--red);
}

.industry-section {
  color: var(--white);
  background: var(--dark);
}

.industry-section .section-title {
  color: var(--white);
}

.industry-section .section-desc {
  color: rgba(255, 255, 255, 0.72);
}

.industry-data-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  width: calc(100% + 112px);
  max-width: none;
  margin: 0 auto 32px;
  margin-left: -56px;
  margin-right: -56px;
  border-top: 3px solid var(--red);
  border-left: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(12, 16, 22, 0.9);
  backdrop-filter: blur(2px);
}

.industry-metric {
  position: relative;
  overflow: hidden;
  min-height: 190px;
  padding: 32px 30px;
  background: rgba(20, 24, 32, 0.9);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.industry-metric span {
  display: block;
  margin-bottom: 12px;
  color: rgba(255, 255, 255, 0.66);
  font-size: 13px;
  font-weight: 800;
}

.industry-metric strong {
  display: block;
  margin-bottom: 14px;
  color: var(--red);
  font-size: clamp(34px, 4vw, 56px);
  line-height: 1;
  font-weight: 900;
}

.industry-metric p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
  line-height: 1.7;
}

.solution-block {
  width: calc(100% + 112px);
  max-width: none;
  margin: 0 -56px;
  padding: 0 56px;
  color: var(--ink);
  background: var(--white);
}

.solution-head {
  max-width: var(--max);
  margin: 0 auto 64px;
}

.solution-head h3 {
  max-width: 820px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(38px, 5vw, 72px);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: 0;
}

.solution-head p {
  max-width: 720px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.solution-tabs {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  max-width: var(--max);
  margin: 0 auto 52px;
  border-bottom: 2px solid var(--line);
}

.solution-tab {
  position: relative;
  min-height: 62px;
  padding: 0 12px 18px 0;
  color: #a8a8a8;
  background: transparent;
  border: 0;
  text-align: left;
  font-size: 17px;
  font-weight: 900;
  transition: color 0.2s ease;
}

.solution-tab::after {
  content: "";
  position: absolute;
  left: 0;
  right: 24px;
  bottom: -2px;
  height: 3px;
  background: transparent;
}

.solution-tab:hover,
.solution-tab.active {
  color: var(--ink);
}

.solution-tab.active::after {
  background: var(--ink);
}

.solution-panels {
  max-width: var(--max);
  margin: 0 auto;
}

.solution-panel {
  display: none;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  align-items: center;
  gap: clamp(46px, 6vw, 92px);
}

.solution-panel.active {
  display: grid;
}

.solution-visual {
  position: relative;
  height: 430px;
  margin: 0;
  overflow: hidden;
  background: #f4f4f4;
  border: 1px solid var(--line);
}

.solution-visual img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center center;
  filter: saturate(0.98) contrast(1.02);
}

.solution-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='140' viewBox='0 0 240 140'%3E%3Cg transform='rotate(-24 120 70)'%3E%3Ctext x='120' y='78' text-anchor='middle' font-size='22' font-family='PingFang SC,Microsoft YaHei,sans-serif' font-weight='800' fill='%23000000' fill-opacity='0.11'%3E%E5%A4%AA%E5%8E%9F%E5%B8%82%E4%B8%89%E9%87%91%E5%A8%81%3C/text%3E%3C/g%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 240px 140px;
  mix-blend-mode: multiply;
}

.solution-visual::after {
  display: none;
}

.solution-visual figcaption {
  display: none;
}

.solution-visual figcaption span {
  display: block;
  margin-bottom: 8px;
  color: var(--red);
  font-size: 13px;
  font-weight: 900;
}

.solution-visual figcaption strong {
  display: block;
  font-size: clamp(24px, 2.6vw, 34px);
  line-height: 1.2;
  font-weight: 900;
}

.solution-copy h3 {
  margin: 0 0 20px;
  color: var(--ink);
  font-size: clamp(28px, 3.2vw, 42px);
  line-height: 1.18;
  font-weight: 900;
}

.solution-copy p {
  max-width: 620px;
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.solution-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 30px 0 34px;
}

.solution-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 6px 16px;
  color: var(--ink-soft);
  background: var(--white);
  border: 1px solid var(--line);
  font-size: 14px;
  font-weight: 800;
}

.solution-copy .btn-primary {
  min-height: 56px;
  padding: 14px 28px;
  font-size: 15px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.tag-list span,
.about-list a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 5px 14px;
  color: var(--ink-soft);
  background: var(--white);
  border: 1px solid var(--line);
  font-size: 13px;
  font-weight: 700;
}

.about-list a:hover {
  color: var(--white);
  background: var(--red);
  border-color: var(--red);
}

.cases {
  background: var(--bg);
}

.case-grid,
.quality-grid,
.service-grid {
  display: grid;
  max-width: var(--max);
  margin: 0 auto;
  gap: 22px;
}

.case-grid {
  grid-template-columns: repeat(3, 1fr);
}

.case-card {
  background: var(--white);
  border: 1px solid var(--line);
}

.case-image {
  position: relative;
  height: 260px;
  margin: 0;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-card div {
  padding: 28px;
}

.case-card span {
  display: block;
  margin-bottom: 10px;
  color: var(--red);
  font-size: 13px;
  font-weight: 900;
}

.case-card h3 {
  margin: 0 0 10px;
  font-size: 22px;
  line-height: 1.35;
}

.case-card p {
  margin: 0;
  color: var(--muted);
}

.case-card.report {
  display: flex;
  align-items: center;
  color: var(--white);
  background: var(--dark);
}

.case-card.report p {
  margin-bottom: 22px;
  color: rgba(255, 255, 255, 0.66);
}

.case-card.report .btn-secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.28);
}

.case-section-action {
  display: flex;
  justify-content: center;
  max-width: var(--max);
  margin: 34px auto 0;
}

.quality {
  color: var(--white);
  background: var(--dark);
}

.quality .section-title {
  color: var(--white);
}

.quality .section-desc {
  color: rgba(255, 255, 255, 0.58);
}

.quality-grid {
  grid-template-columns: repeat(3, 1fr);
}

.quality-grid article {
  overflow: hidden;
  background: var(--dark-2);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.quality-image {
  position: relative;
  height: 230px;
  margin: 0;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.quality-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.quality-image::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='150' height='86' viewBox='0 0 150 86'%3E%3Cg transform='rotate(-24 75 43)'%3E%3Ctext x='75' y='48' text-anchor='middle' font-size='15' font-family='PingFang SC,Microsoft YaHei,sans-serif' font-weight='800' fill='%23ffffff' fill-opacity='0.24' stroke='%23000000' stroke-opacity='0.14' stroke-width='0.8'%3E%E5%A4%AA%E5%8E%9F%E5%B8%82%E4%B8%89%E9%87%91%E5%A8%81%3C/text%3E%3C/g%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 150px 86px;
}

.quality-grid h3 {
  margin: 0;
  padding: 22px;
  font-size: 20px;
}

.download-card {
  min-height: 280px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.download-card h3 {
  padding: 0;
  margin-bottom: 10px;
}

.download-card p {
  margin: 0 0 22px;
  color: rgba(255, 255, 255, 0.62);
}

.about {
  background: var(--bg-soft);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  max-width: var(--max);
  margin: 0 auto;
  background: var(--white);
  border: 1px solid var(--line);
}

.about-carousel {
  position: relative;
  min-height: 430px;
  overflow: hidden;
  background: var(--dark);
}

.about-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 700ms ease, visibility 700ms ease;
}

.about-slide.is-active {
  opacity: 1;
  visibility: visible;
}

.about-slide::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='150' height='86' viewBox='0 0 150 86'%3E%3Cg transform='rotate(-24 75 43)'%3E%3Ctext x='75' y='48' text-anchor='middle' font-size='15' font-family='PingFang SC,Microsoft YaHei,sans-serif' font-weight='800' fill='%23ffffff' fill-opacity='0.24' stroke='%23000000' stroke-opacity='0.14' stroke-width='0.8'%3E%E5%A4%AA%E5%8E%9F%E5%B8%82%E4%B8%89%E9%87%91%E5%A8%81%3C/text%3E%3C/g%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 150px 86px;
}

.about-slide img {
  width: 100%;
  height: 100%;
  min-height: 430px;
  object-fit: cover;
}

.about-slide-document img {
  object-fit: contain;
  background: var(--white);
}

.about-caption {
  position: absolute;
  left: 28px;
  bottom: 28px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 8px 16px;
  background: rgba(12, 16, 22, 0.82);
  color: var(--white);
  font-size: 13px;
  font-weight: 800;
}

.about-dots {
  position: absolute;
  right: 28px;
  bottom: 32px;
  z-index: 3;
  display: flex;
  gap: 9px;
}

.about-dot {
  width: 34px;
  height: 4px;
  padding: 0;
  border: 0;
  background: rgba(255, 255, 255, 0.55);
  cursor: pointer;
}

.about-dot.is-active {
  background: var(--red);
}

.about-content {
  padding: 54px;
}

.about-content h3 {
  margin: 0 0 16px;
  font-size: 30px;
  line-height: 1.28;
}

.about-content p {
  margin: 0 0 28px;
  color: var(--muted);
}

.about-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.services {
  background: var(--bg);
}

.service-grid {
  grid-template-columns: repeat(4, 1fr);
}

.service-grid article {
  padding: 30px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
}

.service-grid h3 {
  margin: 0 0 12px;
  font-size: 21px;
}

.service-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.service-link {
  display: inline-flex;
  margin-top: 18px;
  color: var(--red);
  font-size: 13px;
  font-weight: 900;
}

.cta-banner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 520px);
  align-items: stretch;
  gap: 44px;
  padding: 68px 56px;
  color: var(--white);
  background: var(--red);
}

.contact-copy {
  max-width: 760px;
  align-self: center;
}

.contact-eyebrow {
  display: inline-block;
  margin-bottom: 16px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.cta-banner h2 {
  margin: 0 0 10px;
  font-size: clamp(26px, 3vw, 40px);
  line-height: 1.2;
}

.cta-banner p {
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
}

.contact-points {
  display: grid;
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.contact-points li {
  position: relative;
  padding-left: 18px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 14px;
}

.contact-points li::before {
  position: absolute;
  top: 0.62em;
  left: 0;
  width: 7px;
  height: 7px;
  background: var(--white);
  content: "";
}

.contact-form {
  padding: 28px;
  color: var(--ink);
  background: var(--white);
  border-top: 4px solid var(--dark);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.14);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.footer {
  padding: 66px 56px 34px;
  color: rgba(255, 255, 255, 0.62);
  background: var(--dark);
  border-top: 4px solid var(--red);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr;
  max-width: var(--max);
  margin: 0 auto 38px;
  gap: 48px;
}

.footer-logo {
  width: 58px;
  height: 58px;
  object-fit: cover;
  margin-bottom: 16px;
}

.footer-location span {
  max-width: 360px;
}

.footer-location > span {
  line-height: 1.7;
}

.footer-map {
  position: relative;
  display: grid;
  min-height: 150px;
  margin: 0 0 18px;
  padding: 28px;
  align-content: end;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(135deg, rgba(227, 0, 18, 0.2), rgba(18, 24, 33, 0.95));
  background-size: 38px 38px, 38px 38px, auto;
}

.footer-map::after {
  content: "";
  position: absolute;
  inset: auto 22px 22px auto;
  width: 92px;
  height: 56px;
  border-right: 2px solid rgba(255, 255, 255, 0.18);
  border-bottom: 2px solid rgba(255, 255, 255, 0.18);
}

.map-pin {
  position: absolute;
  top: 34px;
  left: 44px;
  width: 20px;
  height: 20px;
  margin: 0;
  border: 4px solid var(--red);
  border-radius: 50%;
  background: var(--white);
  box-shadow: 0 0 0 12px rgba(227, 0, 18, 0.18);
}

.footer-map strong,
.footer-map em {
  position: relative;
  z-index: 1;
  display: block;
}

.footer-map strong {
  margin-bottom: 6px;
  color: var(--white);
  font-size: 19px;
}

.footer-map em {
  color: rgba(255, 255, 255, 0.62);
  font-style: normal;
  font-size: 13px;
}

.footer-map-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.footer-map-actions a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  margin: 0;
  padding: 8px 14px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  font-size: 13px;
  font-weight: 800;
}

.footer-map-actions a:hover {
  background: var(--red);
  border-color: var(--red);
}

.footer p {
  max-width: 320px;
  margin: 0;
}

.footer h3 {
  margin: 0 0 16px;
  color: var(--white);
  font-size: 15px;
}

.footer a,
.footer span {
  display: block;
  margin-bottom: 9px;
  font-size: 13px;
}

.footer a:hover {
  color: var(--white);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  max-width: var(--max);
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 12px;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0.52);
}

.modal-overlay.open {
  display: flex;
}

.modal {
  position: relative;
  width: min(480px, 100%);
  max-height: calc(100vh - 48px);
  overflow: auto;
  padding: 42px;
  background: var(--white);
  border-top: 4px solid var(--red);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.25);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 18px;
  width: 32px;
  height: 32px;
  color: var(--muted);
  background: transparent;
  border: 0;
  font-size: 24px;
}

.modal h2 {
  margin: 0 0 6px;
  font-size: 26px;
}

.modal > p {
  margin: 0 0 26px;
  color: var(--muted);
  font-size: 14px;
}

.lead-form {
  display: grid;
  gap: 14px;
}

.lead-form label {
  display: grid;
  gap: 6px;
}

.lead-form label span {
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 800;
}

.lead-form input,
.lead-form select,
.lead-form textarea {
  width: 100%;
  padding: 12px 13px;
  border: 1px solid var(--line);
  outline: none;
}

.lead-form input[type="file"] {
  padding: 10px;
  background: var(--bg-soft);
}

.lead-form input:focus,
.lead-form select:focus,
.lead-form textarea:focus {
  border-color: var(--red);
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.form-honeypot {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.floating-contact {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 260;
  display: grid;
  gap: 10px;
}

.float-contact-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  color: var(--white);
  background: var(--red);
  border: 0;
  border-radius: 50%;
  box-shadow: 0 14px 32px rgba(20, 24, 32, 0.18);
  font-size: 12px;
  font-weight: 900;
  text-decoration: none;
}

.float-contact-button.secondary {
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
}

.float-contact-button:hover {
  transform: translateY(-2px);
}

.float-wechat-panel {
  position: absolute;
  right: 64px;
  bottom: 62px;
  display: none;
  width: 214px;
  padding: 14px;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 18px 48px rgba(20, 24, 32, 0.18);
}

.floating-contact.wechat-open .float-wechat-panel {
  display: block;
}

.float-wechat-panel strong {
  display: block;
  margin-bottom: 10px;
  color: var(--ink);
  font-size: 14px;
}

.float-qr-placeholder {
  display: grid;
  place-items: center;
  min-height: 122px;
  padding: 12px;
  color: var(--muted);
  background: var(--bg-soft);
  border: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.5;
  text-align: center;
}

.float-qr-image {
  display: block;
  width: 100%;
  height: auto;
}

.subpage-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1.08fr);
  align-items: stretch;
  min-height: 560px;
  margin-top: 76px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line);
}

.subpage-hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 86px 64px;
}

.subpage-hero-copy h1 {
  max-width: 720px;
  margin: 0 0 24px;
  color: var(--ink);
  font-size: 44px;
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: 0;
}

.subpage-hero-copy p {
  max-width: 620px;
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.subpage-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.subpage-hero-visual {
  min-height: 560px;
  margin: 0;
  background: var(--dark);
}

.subpage-hero-carousel {
  position: relative;
}

.subpage-hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 700ms ease, visibility 700ms ease;
}

.subpage-hero-slide.is-active {
  opacity: 1;
  visibility: visible;
}

.subpage-hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}

.subpage-hero-dots {
  position: absolute;
  right: 28px;
  bottom: 28px;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 9px;
}

.subpage-hero-dot {
  width: 30px;
  height: 4px;
  padding: 0;
  border: 0;
  background: rgba(255, 255, 255, 0.58);
  transition: width 180ms ease, background 180ms ease;
}

.subpage-hero-dot.is-active {
  width: 44px;
  background: var(--red);
}

.watermarked-media {
  position: relative;
  overflow: hidden;
}

.watermarked-media::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='170' height='98' viewBox='0 0 170 98'%3E%3Cg transform='rotate(-24 85 49)'%3E%3Ctext x='85' y='55' text-anchor='middle' font-size='16' font-family='PingFang SC,Microsoft YaHei,sans-serif' font-weight='800' fill='%23ffffff' fill-opacity='0.32' stroke='%23000000' stroke-opacity='0.28' stroke-width='0.9'%3E%E5%A4%AA%E5%8E%9F%E5%B8%82%E4%B8%89%E9%87%91%E5%A8%81%3C/text%3E%3C/g%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 150px 86px;
}

.watermarked-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-page-shell {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 34px;
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 56px 92px;
}

.product-side-nav {
  position: sticky;
  top: 96px;
  align-self: start;
  display: grid;
  margin-top: 72px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 4px solid var(--red);
}

.product-side-nav a {
  display: block;
  padding: 15px 18px;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  font-weight: 800;
}

.product-side-nav a:last-child {
  border-bottom: 0;
}

.product-side-nav a:hover {
  color: var(--white);
  background: var(--red);
}

.product-side-nav a.is-active {
  color: var(--white);
  background: var(--red);
}

.product-page-content {
  min-width: 0;
}

#wear-plate,
#wear-pipe,
#roller-repair,
#welding-wire,
#custom-parts,
#contact {
  scroll-margin-top: 96px;
}

.product-page-content .section {
  padding-left: 0;
  padding-right: 0;
}

.product-line-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.product-line-card {
  min-width: 0;
  background: var(--white);
  transition: background 0.2s ease, transform 0.2s ease;
}

.product-line-card:hover {
  background: var(--bg-soft);
  transform: translateY(-2px);
}

.product-line-image {
  height: 150px;
  margin: 0;
  border-bottom: 1px solid var(--line);
}

.product-line-card > span,
.product-line-card h3,
.product-line-card p {
  margin-left: 18px;
  margin-right: 18px;
}

.product-line-card > span {
  display: block;
  margin-top: 20px;
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
}

.product-line-card h3 {
  min-height: 58px;
  margin-top: 8px;
  margin-bottom: 12px;
  font-size: 17px;
  line-height: 1.35;
}

.product-line-card p {
  min-height: 84px;
  margin-top: 0;
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 13px;
}

.selector-table,
.comparison-table {
  display: grid;
  border-top: 3px solid var(--red);
  background: var(--white);
  border-left: 1px solid var(--line);
}

.selector-row,
.comparison-table div {
  display: grid;
  grid-template-columns: 1fr 1.2fr 1.6fr;
}

.selector-row > *,
.comparison-table div > * {
  margin: 0;
  padding: 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.selector-head > *,
.comparison-table div:first-child > * {
  color: var(--white);
  background: var(--dark);
  font-size: 13px;
  font-weight: 900;
}

.selector-row span {
  color: var(--ink);
  font-weight: 900;
}

.selector-row strong {
  color: var(--red);
  font-weight: 900;
}

.selector-row p,
.comparison-table p {
  color: var(--muted);
}

.product-detail-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 0.92fr);
  align-items: center;
  gap: 42px;
  padding: 86px 0;
  border-top: 1px solid var(--line);
}

.product-detail-section-alt {
  grid-template-columns: minmax(420px, 0.92fr) minmax(0, 1fr);
}

.product-detail-copy h2,
.module-head h2,
.tech-copy h2 {
  margin: 0 0 18px;
  color: var(--ink);
  font-size: clamp(30px, 3.5vw, 48px);
  line-height: 1.16;
  font-weight: 900;
}

.product-detail-copy p {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 16px;
}

.product-detail-media,
.tech-media {
  height: 410px;
  margin: 0;
  background: var(--dark);
  border: 1px solid var(--line);
}

.product-detail-carousel {
  position: relative;
}

.product-detail-carousel .subpage-hero-dots {
  right: 18px;
  bottom: 18px;
}

.welding-wire-carousel {
  background: var(--white);
}

.welding-wire-carousel .subpage-hero-slide img {
  box-sizing: border-box;
  padding: 18px;
  background: var(--white);
  object-fit: contain;
}

.welding-wire-carousel .subpage-hero-dot {
  background: rgba(20, 24, 31, 0.24);
}

.welding-wire-carousel .subpage-hero-dot.is-active {
  background: var(--red);
}

.detail-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 28px;
}

.detail-specs span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 7px 14px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  font-size: 13px;
  font-weight: 900;
}

.detail-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  padding: 0;
  color: var(--red);
  background: none;
  border: 0;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
}

.detail-link::after {
  content: "→";
  font-size: 15px;
}

.detail-link:hover {
  text-decoration: underline;
}

.detail-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.detail-list li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  font-size: 14px;
}

.detail-list strong {
  color: var(--ink);
  font-weight: 900;
}

.detail-list li::before {
  position: absolute;
  top: 0.64em;
  left: 0;
  width: 7px;
  height: 7px;
  background: var(--red);
  content: "";
}

.product-module {
  background: var(--bg);
}

.module-head {
  max-width: 760px;
  margin-bottom: 34px;
}

.advantage-grid,
.wire-card-grid,
.comparison-grid,
.pipe-plan-grid {
  display: grid;
  gap: 18px;
}

.advantage-grid {
  grid-template-columns: repeat(3, 1fr);
}

.advantage-grid article,
.comparison-grid article,
.wire-card-grid article,
.pipe-plan-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
}

.advantage-grid article,
.comparison-grid article,
.wire-card-grid article {
  padding: 26px;
}

.advantage-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.advantage-icon {
  display: inline-flex;
  width: 58px;
  height: 58px;
  align-items: center;
  justify-content: center;
  color: var(--red);
}

.advantage-icon svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.comparison-card-media {
  height: 220px;
  margin: -26px -26px 22px;
  background: var(--dark);
  border-bottom: 1px solid var(--line);
}

.advantage-grid span,
.comparison-grid span,
.wire-card-grid span,
.plan-kicker {
  display: block;
  margin-bottom: 12px;
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
}

.advantage-card-head span {
  margin-bottom: 0;
}

.advantage-grid h3,
.comparison-grid h3,
.wire-card-grid h4,
.pipe-plan-card h3 {
  margin: 0 0 10px;
  font-size: 21px;
  line-height: 1.32;
}

.advantage-grid p,
.comparison-grid p,
.wire-card-grid p,
.pipe-plan-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.product-tech-panel {
  display: grid;
  grid-template-columns: minmax(380px, 0.9fr) minmax(0, 1.1fr);
  align-items: center;
  gap: 38px;
}

.wear-tech-panel {
  grid-template-columns: 1fr;
  align-items: start;
  gap: 28px;
}

.wear-tech-panel .spec-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.tech-comparison-media {
  margin: 0;
  background: #f7f7f7;
  border: 1px solid var(--line);
}

.tech-comparison-media img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.spec-grid {
  display: grid;
  gap: 12px;
}

.spec-grid article {
  padding: 20px;
  background: var(--white);
  border: 1px solid var(--line);
}

.spec-grid span,
.spec-grid strong,
.spec-grid p {
  display: block;
}

.spec-grid span {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.spec-grid strong {
  color: var(--ink);
  font-size: 18px;
  line-height: 1.4;
}

.spec-grid p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.wear-grade-section {
  border-top: 1px solid var(--line);
}

.wear-grade-table {
  display: grid;
  gap: 10px;
  border: 0;
  background: transparent;
}

.wear-grade-row {
  display: grid;
  grid-template-columns: 110px 220px 96px minmax(0, 1fr);
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 4px solid var(--red);
}

.wear-grade-head {
  background: var(--dark);
  border-left: 4px solid var(--red);
}

.wear-grade-head > * {
  margin: 0;
  padding: 14px 16px;
  color: var(--white);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.06em;
}

.wg-id {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 18px 8px;
  color: var(--white);
  background: var(--dark);
}

.wg-id strong {
  color: var(--white);
  font-size: 24px;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.wg-id em {
  margin-top: 6px;
  color: #ff6b6b;
  font-size: 11px;
  font-style: normal;
  font-weight: 900;
}

.wg-hardness {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  padding: 18px;
  border-right: 1px solid var(--line);
}

.wg-hardness-row {
  color: var(--red);
  font-size: 20px;
  line-height: 1.25;
  font-weight: 900;
}

.wg-hardness-row i {
  display: inline-block;
  min-width: 52px;
  margin-right: 8px;
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
  font-weight: 800;
  vertical-align: middle;
}

.wg-temp {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px 10px;
  border-right: 1px solid var(--line);
}

.wg-temp-badge {
  display: inline-flex;
  min-width: 62px;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  padding: 8px 10px;
  color: var(--white);
  background: var(--dark);
  font-size: 12px;
  font-weight: 900;
}

.wg-temp-room {
  background: #4b5563;
}

.wg-temp-450 {
  background: #9a3412;
}

.wg-temp-700,
.wg-temp-800 {
  background: #b91c1c;
}

.wg-temp-1000 {
  background: #7f1d1d;
}

.wg-scenario {
  min-width: 0;
  padding: 18px 22px;
}

.wg-desc {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.wg-sub {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 6px 10px;
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.wg-sub dt {
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
}

.wg-sub dd {
  min-width: 0;
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.65;
  word-break: break-word;
}

.wear-plate-gallery-section {
  padding-top: 18px;
}

.wear-photo-group {
  margin-top: 34px;
}

.module-head + .wear-photo-group {
  margin-top: 0;
}

.wear-photo-group h3 {
  margin: 0 0 16px;
  color: var(--ink);
  font-size: 24px;
  line-height: 1.25;
  font-weight: 900;
}

.wear-plate-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.wear-plate-gallery-four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.wear-plate-gallery figure {
  margin: 0;
  background: var(--white);
  border: 1px solid var(--line);
}

.wear-plate-gallery img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.wear-plate-gallery figcaption {
  position: relative;
  z-index: 2;
  padding: 13px 15px;
  color: var(--ink);
  background: var(--white);
  border-top: 1px solid var(--line);
  font-size: 13px;
  font-weight: 900;
}

.pipe-photo-section {
  padding-top: 18px;
}

.pipe-photo-group {
  margin-top: 34px;
}

.module-head + .pipe-photo-group {
  margin-top: 0;
}

.pipe-photo-group h3 {
  margin: 0 0 16px;
  color: var(--ink);
  font-size: 24px;
  line-height: 1.25;
  font-weight: 900;
}

.pipe-photo-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.pipe-photo-gallery figure {
  margin: 0;
  background: var(--white);
  border: 1px solid var(--line);
}

.pipe-photo-gallery img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.pipe-photo-gallery figcaption {
  position: relative;
  z-index: 2;
  padding: 13px 15px;
  color: var(--ink);
  background: var(--white);
  border-top: 1px solid var(--line);
  font-size: 13px;
  font-weight: 900;
}

.custom-part-gallery-section {
  padding-top: 18px;
}

.custom-part-gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.custom-part-gallery figure {
  margin: 0;
  background: var(--white);
  border: 1px solid var(--line);
}

.custom-part-gallery img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.custom-part-gallery figcaption {
  position: relative;
  z-index: 2;
  padding: 13px 15px;
  color: var(--ink);
  background: var(--white);
  border-top: 1px solid var(--line);
  font-size: 13px;
  font-weight: 900;
}

.pipe-plan-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.pipe-plan-grid.pipe-plan-grid-single {
  grid-template-columns: minmax(0, 1fr);
}

.pipe-plan-card figure {
  height: 260px;
  margin: 0;
  border-bottom: 1px solid var(--line);
}

.pipe-plan-card > div {
  padding: 28px;
}

.comparison-grid {
  grid-template-columns: repeat(2, 1fr);
  margin-bottom: 28px;
}

.comparison-table div {
  grid-template-columns: 1fr 1.2fr 1.2fr;
}

.comparison-table strong {
  color: var(--white);
}

.wire-group {
  margin-top: 28px;
}

.wire-group h3 {
  margin: 0 0 14px;
  color: var(--ink);
  font-size: 24px;
}

.wire-card-grid {
  grid-template-columns: repeat(3, 1fr);
}

.wire-card-grid-two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.wire-card-grid-four {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.wire-card-grid em {
  display: block;
  margin-top: 16px;
  color: var(--ink-soft);
  font-style: normal;
  font-size: 13px;
  line-height: 1.6;
}

.wire-card-grid em + em {
  margin-top: 8px;
}

.wire-card-grid em strong {
  color: var(--ink);
  font-weight: 900;
}

.wire-process-section {
  padding-top: 18px;
}

.wire-process-media {
  margin: 0;
  background: var(--white);
  border: 1px solid var(--line);
}

.wire-process-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.industry-page-hero {
  background: var(--bg-soft);
}

.industry-hero-copy {
  background:
    linear-gradient(90deg, rgba(214, 0, 18, 0.08), transparent 44%),
    var(--bg-soft);
}

.industry-hero-visual {
  background: #f2f2f2;
  border-left: 1px solid var(--line);
}

.industry-hero-visual .subpage-hero-slide img {
  padding: 28px;
  background: #f2f2f2;
  object-fit: contain;
}

.industry-hero-kpis {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  max-width: 620px;
  margin-top: 34px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.industry-hero-kpis div {
  padding: 18px 18px 18px 0;
}

.industry-hero-kpis strong,
.industry-hero-kpis span {
  display: block;
}

.industry-hero-kpis strong {
  margin-bottom: 4px;
  color: var(--red);
  font-size: 26px;
  line-height: 1;
  font-weight: 900;
}

.industry-hero-kpis span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.industry-proof-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  color: var(--white);
  background: var(--dark);
  border-top: 4px solid var(--red);
}

.industry-proof-strip article {
  min-width: 0;
  padding: 30px 36px;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.industry-proof-strip article:last-child {
  border-right: 0;
}

.industry-proof-strip span,
.industry-proof-strip strong {
  display: block;
}

.industry-proof-strip span {
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 12px;
  font-weight: 900;
}

.industry-proof-strip strong {
  color: var(--white);
  font-size: 18px;
  line-height: 1.35;
  font-weight: 900;
}

.industry-page-shell {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 34px;
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 56px 92px;
}

.industry-side-nav {
  position: sticky;
  top: 96px;
  align-self: start;
  display: grid;
  margin-top: 72px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 4px solid var(--red);
}

.industry-side-nav a {
  display: block;
  padding: 15px 18px;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  font-weight: 800;
}

.industry-side-nav a:last-child {
  border-bottom: 0;
}

.industry-side-nav a:hover {
  color: var(--white);
  background: var(--red);
}

.industry-page-content {
  min-width: 0;
}

#overview,
#wear-points,
#selection,
#downloads,
#industry-washing,
#industry-steel,
#industry-mining,
#industry-power,
#industry-cement,
#industry-recycling {
  scroll-margin-top: 96px;
}

.industry-page-content .section {
  padding-left: 0;
  padding-right: 0;
}

.industry-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.industry-card {
  display: grid;
  grid-template-rows: 260px minmax(0, 1fr);
  min-width: 0;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
}

.industry-card-media {
  margin: 0;
  background: #f5f5f5;
  border-bottom: 1px solid var(--line);
}

.industry-card-media img {
  padding: 18px;
  background: #f5f5f5;
  object-fit: contain;
}

.industry-card-body {
  padding: 28px;
}

.industry-card-body > span {
  display: block;
  margin-bottom: 12px;
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
}

.industry-card-body h3 {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: 23px;
  line-height: 1.28;
  font-weight: 900;
}

.industry-card-body p {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 14px;
}

.industry-scope-list {
  display: grid;
  gap: 8px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.industry-scope-list li {
  position: relative;
  padding-left: 16px;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.6;
}

.industry-scope-list li::before {
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 6px;
  height: 6px;
  background: var(--red);
  content: "";
}

.industry-card-products {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.industry-card-products strong,
.industry-card-products a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  font-size: 12px;
  font-weight: 900;
}

.industry-card-products strong {
  color: var(--white);
  background: var(--dark);
  border-color: var(--dark);
}

.industry-card-products a {
  color: var(--ink-soft);
  background: var(--white);
}

.industry-card-products a:hover {
  color: var(--white);
  background: var(--red);
  border-color: var(--red);
}

.wear-point-section,
.downloads-section {
  border-top: 1px solid var(--line);
}

.wear-point-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.wear-point-card {
  display: grid;
  grid-template-columns: minmax(220px, 0.88fr) minmax(0, 1fr);
  min-width: 0;
  background: var(--white);
  border: 1px solid var(--line);
}

.wear-point-media {
  position: relative;
  min-height: 260px;
  margin: 0;
  background: var(--dark);
  border-right: 1px solid var(--line);
}

.wear-point-media figcaption {
  position: absolute;
  left: 18px;
  bottom: 18px;
  z-index: 2;
  padding: 7px 14px;
  color: var(--white);
  background: rgba(12, 16, 22, 0.82);
  font-size: 13px;
  font-weight: 900;
}

.wear-point-card > div {
  padding: 28px;
  align-self: center;
}

.wear-point-card h3 {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: 22px;
  line-height: 1.3;
  font-weight: 900;
}

.wear-point-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.selection-section {
  color: var(--white);
  background: var(--dark);
  margin-left: -34px;
  padding-left: 34px !important;
  padding-right: 34px !important;
}

.selection-section .module-head h2 {
  color: var(--white);
}

.selection-section .module-head p {
  color: rgba(255, 255, 255, 0.68);
}

.selection-question-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-bottom: 26px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.selection-question-grid article {
  padding: 24px;
  background: var(--dark-2);
}

.selection-question-grid span,
.selection-question-grid strong,
.selection-question-grid p {
  display: block;
}

.selection-question-grid span {
  margin-bottom: 14px;
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
}

.selection-question-grid strong {
  margin-bottom: 10px;
  color: var(--white);
  font-size: 18px;
  line-height: 1.25;
  font-weight: 900;
}

.selection-question-grid p {
  margin: 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 13px;
}

.industry-selection-table {
  display: grid;
  background: var(--white);
  border-top: 3px solid var(--red);
  border-left: 1px solid rgba(255, 255, 255, 0.16);
}

.industry-selection-row {
  display: grid;
  grid-template-columns: 0.72fr 1.35fr 1.28fr 1.45fr;
}

.industry-selection-row > * {
  margin: 0;
  padding: 17px 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.industry-selection-head > * {
  color: var(--white);
  background: var(--dark-2);
  font-size: 12px;
  font-weight: 900;
}

.industry-selection-row strong {
  color: var(--red);
  font-weight: 900;
}

.industry-selection-row p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.industry-download-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.industry-download-grid article {
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
}

.industry-download-grid span {
  display: block;
  margin-bottom: 12px;
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
}

.industry-download-grid h3 {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: 22px;
  line-height: 1.3;
  font-weight: 900;
}

.industry-download-grid p {
  min-height: 72px;
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 14px;
}

.industry-catalog-page,
.industry-detail-page {
  background: var(--bg-soft);
}

.industry-catalog-hero {
  max-width: 1360px;
  margin: 76px auto 0;
  padding: 70px 56px 78px;
}

.industry-catalog-head {
  max-width: 840px;
  margin-bottom: 34px;
}

.industry-catalog-head h1,
.industry-detail-hero-copy h1,
.detail-intro-copy h2,
.industry-part-section .module-head h2,
.industry-catalog-note h2 {
  margin: 0;
  color: var(--ink);
  line-height: 1.12;
  font-weight: 900;
  text-wrap: pretty;
}

.industry-catalog-head h1 {
  margin-top: 12px;
  font-size: 46px;
}

.industry-catalog-head p {
  max-width: 760px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 16px;
}

.industry-entry-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.industry-entry-card {
  position: relative;
  display: grid;
  min-width: 0;
  min-height: 420px;
  overflow: hidden;
  color: var(--white);
  background: var(--dark);
  border: 1px solid rgba(255, 255, 255, 0.12);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.industry-entry-card::before {
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    linear-gradient(180deg, rgba(12, 16, 22, 0.08) 12%, rgba(12, 16, 22, 0.18) 46%, rgba(12, 16, 22, 0.88) 100%),
    linear-gradient(90deg, rgba(214, 0, 18, 0.32), transparent 48%);
  content: "";
  pointer-events: none;
}

.industry-entry-card:hover {
  transform: translateY(-4px);
  border-color: rgba(214, 0, 18, 0.58);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.18);
}

.industry-entry-media {
  position: absolute;
  inset: 0;
  margin: 0;
  background: var(--dark);
}

.industry-entry-media img {
  transition: transform 260ms ease, filter 260ms ease;
}

.industry-entry-card:hover .industry-entry-media img {
  transform: scale(1.045);
  filter: contrast(1.05) saturate(1.04);
}

.industry-entry-copy {
  position: relative;
  z-index: 3;
  align-self: end;
  padding: 28px;
}

.industry-entry-copy span,
.industry-part-copy span,
.detail-facts span,
.industry-catalog-note span {
  display: block;
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
}

.industry-entry-copy h2 {
  margin: 8px 0 10px;
  color: var(--white);
  font-size: 28px;
  line-height: 1.18;
  font-weight: 900;
}

.industry-entry-copy p {
  min-height: 74px;
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}

.industry-entry-copy::after {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  margin-top: 18px;
  padding: 6px 14px;
  color: var(--white);
  background: var(--red);
  content: "查看行业部位";
  font-size: 12px;
  font-weight: 900;
}

.industry-catalog-note {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  max-width: 1248px;
  margin: 0 auto 86px;
  padding: 30px 34px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 4px solid var(--red);
}

.industry-catalog-note h2 {
  margin-top: 7px;
  font-size: 25px;
}

.industry-catalog-note p {
  max-width: 760px;
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.industry-catalog-note .btn-primary {
  flex: 0 0 auto;
}

.industry-detail-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(420px, 1.12fr);
  min-height: 620px;
  margin-top: 76px;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.industry-detail-hero-copy {
  align-self: center;
  padding: 70px 56px 70px max(56px, calc((100vw - 1248px) / 2));
}

.detail-back-link {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  margin-bottom: 28px;
  padding: 6px 13px;
  color: var(--muted);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  font-size: 13px;
  font-weight: 800;
}

.detail-back-link:hover {
  color: var(--white);
  background: var(--red);
  border-color: var(--red);
}

.industry-detail-hero-copy h1 {
  margin-top: 14px;
  max-width: 620px;
  font-size: 44px;
}

.industry-detail-hero-copy p {
  max-width: 640px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 16px;
}

.industry-detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.industry-detail-hero-media {
  min-height: 620px;
  margin: 0;
  background: var(--dark);
}

.industry-detail-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  gap: 34px;
  max-width: 1248px;
  margin: 0 auto;
  padding: 56px 56px 22px;
}

.detail-intro-copy {
  align-self: start;
  padding: 34px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 4px solid var(--red);
}

.detail-intro-copy h2 {
  margin-top: 10px;
  font-size: 30px;
}

.detail-intro-copy p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.detail-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.detail-facts article {
  min-height: 116px;
  padding: 20px;
  background: var(--white);
  border: 1px solid var(--line);
}

.detail-facts strong {
  display: block;
  margin-top: 22px;
  color: var(--ink);
  font-size: 18px;
  line-height: 1.25;
  font-weight: 900;
}

.industry-part-section {
  max-width: 1360px;
  margin: 0 auto;
  padding-top: 48px;
  padding-bottom: 86px;
}

.industry-part-section .module-head {
  max-width: 780px;
}

.industry-part-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.industry-part-card {
  min-width: 0;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.industry-part-card:hover {
  transform: translateY(-3px);
  border-color: rgba(214, 0, 18, 0.48);
  box-shadow: 0 16px 38px rgba(0, 0, 0, 0.12);
}

.industry-part-media {
  height: 288px;
  margin: 0;
  background: var(--dark);
  border-bottom: 1px solid var(--line);
}

.industry-part-media img {
  object-position: center center;
}

.industry-part-copy {
  padding: 24px;
}

.industry-part-copy h3 {
  margin: 8px 0 10px;
  color: var(--ink);
  font-size: 21px;
  line-height: 1.28;
  font-weight: 900;
}

.industry-part-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.case-page {
  background: var(--bg-soft);
}

.case-page-hero {
  background: var(--white);
}

.case-page-hero .subpage-hero-copy {
  background:
    linear-gradient(90deg, rgba(214, 0, 18, 0.08), transparent 48%),
    var(--white);
}

.case-hero-visual {
  border-left: 1px solid var(--line);
}

.case-proof-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  color: var(--white);
  background: var(--dark);
  border-top: 4px solid var(--red);
}

.case-proof-strip article {
  min-width: 0;
  padding: 30px 36px;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.case-proof-strip article:last-child {
  border-right: 0;
}

.case-proof-strip span,
.case-proof-strip strong,
.case-proof-strip p {
  display: block;
}

.case-proof-strip span {
  margin-bottom: 10px;
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
}

.case-proof-strip strong {
  margin-bottom: 8px;
  color: var(--white);
  font-size: 19px;
  line-height: 1.3;
  font-weight: 900;
}

.case-proof-strip p {
  margin: 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
}

.case-overview-section,
.case-process-section,
.case-gallery-section,
.case-service-section {
  scroll-margin-top: 96px;
}

.case-feature {
  display: grid;
  grid-template-columns: minmax(420px, 1.05fr) minmax(0, 0.95fr);
  max-width: var(--max);
  margin: 0 auto;
  background: var(--white);
  border: 1px solid var(--line);
}

.case-feature-media {
  min-height: 520px;
  margin: 0;
  background: var(--dark);
  border-right: 1px solid var(--line);
}

.case-feature-copy {
  align-self: center;
  padding: 48px;
}

.case-feature-copy h2 {
  margin: 0 0 18px;
  color: var(--ink);
  font-size: clamp(30px, 3.5vw, 46px);
  line-height: 1.15;
  font-weight: 900;
}

.case-feature-copy p {
  margin: 0 0 26px;
  color: var(--muted);
  font-size: 15px;
}

.case-scope-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.case-scope-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 7px 13px;
  color: var(--ink);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  font-size: 12px;
  font-weight: 900;
}

.case-process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  max-width: var(--max);
  margin: 0 auto;
}

.case-process-grid article {
  min-width: 0;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
}

.case-process-grid figure {
  height: 220px;
  margin: 0;
  background: var(--dark);
  border-bottom: 1px solid var(--line);
}

.case-process-grid article > div {
  padding: 24px;
}

.case-process-grid span,
.case-service-grid span {
  display: block;
  margin-bottom: 10px;
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
}

.case-process-grid h3,
.case-service-grid h3 {
  margin: 0 0 10px;
  color: var(--ink);
  font-size: 20px;
  line-height: 1.32;
  font-weight: 900;
}

.case-process-grid p,
.case-service-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.case-gallery-section {
  background: var(--white);
}

.case-gallery-section .module-head {
  max-width: 820px;
}

.case-mosaic {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-auto-rows: 270px;
  gap: 18px;
  max-width: var(--max);
  margin: 0 auto;
}

.case-mosaic-item {
  position: relative;
  grid-column: span 5;
  margin: 0;
  background: var(--dark);
  border: 1px solid var(--line);
}

.case-mosaic-large {
  grid-column: span 7;
  grid-row: span 2;
}

.case-mosaic-reverse .case-mosaic-large {
  order: 2;
}

.case-mosaic-item figcaption {
  position: absolute;
  left: 18px;
  bottom: 18px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  max-width: calc(100% - 36px);
  min-height: 36px;
  padding: 7px 14px;
  color: var(--white);
  background: rgba(12, 16, 22, 0.84);
  font-size: 13px;
  font-weight: 900;
}

.case-gallery-dark {
  color: var(--white);
  background: var(--dark);
}

.case-gallery-dark .module-head h2 {
  color: var(--white);
}

.case-gallery-dark .module-head p {
  color: rgba(255, 255, 255, 0.66);
}

.case-gallery-dark .case-mosaic-item {
  border-color: rgba(255, 255, 255, 0.14);
}

.case-service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  max-width: var(--max);
  margin: 0 auto;
}

.case-service-grid article {
  min-width: 0;
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
}

.case-partners-section {
  max-width: none;
  margin: 0;
  padding-top: 0;
  background: var(--bg-soft);
  scroll-margin-top: 96px;
}

.case-partners-head {
  display: grid;
  grid-template-columns: minmax(260px, 0.85fr) minmax(0, 1.15fr);
  gap: 28px;
  align-items: end;
  max-width: var(--max);
  margin: 0 auto 24px;
  padding: 32px;
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(214, 0, 18, 0.88), rgba(20, 24, 32, 0.94) 58%),
    var(--dark);
}

.case-partners-head h2 {
  margin: 0;
  color: var(--white);
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.12;
  font-weight: 900;
}

.case-partners-head p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 15px;
  line-height: 1.8;
}

.case-partner-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  max-width: var(--max);
  margin: 0 auto;
}

.case-partner-card {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 132px;
  margin: 0;
  padding: 20px;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 18px 45px rgba(20, 24, 32, 0.06);
}

.case-partner-card img {
  display: block;
  max-width: 100%;
  max-height: 82px;
  object-fit: contain;
  filter: saturate(0.95) contrast(1.02);
}

.tech-page {
  background: var(--bg-soft);
}

.tech-hero {
  background: var(--white);
}

.tech-hero .subpage-hero-copy {
  background:
    linear-gradient(90deg, rgba(214, 0, 18, 0.08), transparent 52%),
    var(--white);
}

.tech-hero-visual {
  border-left: 1px solid var(--line);
}

.tech-hero-visual img {
  object-fit: contain;
  padding: 38px;
  background: var(--white);
}

.tech-topic-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  color: var(--white);
  background: var(--dark);
  border-top: 4px solid var(--red);
}

.tech-topic-strip a {
  min-width: 0;
  padding: 22px 28px;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 14px;
  font-weight: 900;
  text-align: center;
}

.tech-topic-strip a:last-child {
  border-right: 0;
}

.tech-feature-section,
.article-library-section,
.seo-plan-section {
  scroll-margin-top: 96px;
}

.tech-page > .article-library-section:first-child {
  padding-top: 136px;
}

.tech-feature {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(420px, 1.05fr);
  max-width: var(--max);
  margin: 0 auto;
  background: var(--white);
  border: 1px solid var(--line);
}

.tech-feature-copy {
  align-self: center;
  padding: 48px;
}

.tech-feature-copy h2 {
  margin: 0 0 18px;
  color: var(--ink);
  font-size: clamp(30px, 3.3vw, 44px);
  line-height: 1.15;
  font-weight: 900;
}

.tech-feature-copy p {
  margin: 0 0 26px;
  color: var(--muted);
  font-size: 15px;
}

.tech-keyword-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tech-keyword-list span {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 7px 13px;
  color: var(--ink);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  font-size: 12px;
  font-weight: 900;
}

.tech-feature-media {
  min-height: 460px;
  margin: 0;
  background: var(--dark);
  border-left: 1px solid var(--line);
}

.article-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  max-width: var(--max);
  margin: 0 auto;
}

.article-card {
  min-width: 0;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
  scroll-margin-top: 104px;
}

.article-card figure {
  height: 230px;
  margin: 0;
  background: var(--dark);
  border-bottom: 1px solid var(--line);
}

.article-card > div {
  padding: 26px;
}

.article-card span,
.seo-plan-grid span {
  display: block;
  margin-bottom: 10px;
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
}

.article-card h3,
.seo-plan-grid h3 {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: 21px;
  line-height: 1.32;
  font-weight: 900;
}

.article-card p,
.seo-plan-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.article-card a,
.article-card .detail-link {
  display: inline-flex;
  margin-top: 18px;
  color: var(--red);
  font-size: 13px;
  font-weight: 900;
}

.article-card .detail-link {
  padding: 0;
  border: 0;
  background: transparent;
}

.tech-empty-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  max-width: var(--max);
  margin: 0 auto;
}

.tech-empty-grid article {
  min-width: 0;
  padding: 24px;
  background:
    linear-gradient(180deg, rgba(214, 0, 18, 0.035), transparent 42%),
    var(--white);
  border: 1px dashed rgba(20, 24, 32, 0.22);
  border-top: 3px solid var(--red);
}

.tech-empty-grid span {
  display: block;
  margin-bottom: 18px;
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
}

.tech-empty-grid h3 {
  margin: 0 0 10px;
  color: var(--ink);
  font-size: 20px;
  line-height: 1.3;
  font-weight: 900;
}

.tech-empty-grid p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 14px;
}

.tech-empty-grid a {
  display: inline-flex;
  color: var(--red);
  font-size: 13px;
  font-weight: 900;
}

.tech-library-shell {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 22px;
  max-width: var(--max);
  margin: 0 auto;
}

.tech-category-rail {
  position: sticky;
  top: 96px;
  align-self: start;
  display: grid;
  gap: 10px;
}

.tech-category-rail a {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  align-items: center;
  min-height: 76px;
  padding: 16px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 4px solid var(--red);
  box-shadow: 0 14px 34px rgba(20, 24, 32, 0.05);
}

.tech-category-rail span {
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
}

.tech-category-rail strong {
  color: var(--ink);
  font-size: 16px;
  line-height: 1.35;
  font-weight: 900;
}

.tech-category-rail a:hover {
  border-color: rgba(214, 0, 18, 0.45);
  transform: translateX(3px);
}

.tech-empty-panel {
  position: relative;
  min-height: 430px;
  padding: 54px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(214, 0, 18, 0.08), transparent 36%),
    repeating-linear-gradient(90deg, rgba(20, 24, 32, 0.035) 0 1px, transparent 1px 34px),
    repeating-linear-gradient(0deg, rgba(20, 24, 32, 0.035) 0 1px, transparent 1px 34px),
    var(--white);
  border: 1px dashed rgba(20, 24, 32, 0.24);
}

.tech-empty-panel::after {
  position: absolute;
  right: 34px;
  bottom: 28px;
  color: rgba(20, 24, 32, 0.06);
  content: "SJW";
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(82px, 12vw, 160px);
  font-weight: 900;
  line-height: 0.8;
}

.tech-empty-panel span {
  display: inline-flex;
  margin-bottom: 18px;
  padding: 5px 11px;
  color: var(--red);
  background: rgba(214, 0, 18, 0.08);
  border: 1px solid rgba(214, 0, 18, 0.14);
  font-size: 12px;
  font-weight: 900;
}

.tech-empty-panel h3 {
  max-width: 560px;
  margin: 0 0 16px;
  color: var(--ink);
  font-size: clamp(30px, 3.2vw, 46px);
  line-height: 1.12;
  font-weight: 900;
}

.tech-empty-panel p {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.seo-plan-section {
  background: var(--white);
}

.seo-plan-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  max-width: var(--max);
  margin: 0 auto;
}

.seo-plan-grid article {
  min-width: 0;
  padding: 28px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
}

.about-page {
  background: var(--bg-soft);
}

.about-page-hero {
  background: var(--white);
}

.about-page-hero .subpage-hero-copy {
  background:
    linear-gradient(90deg, rgba(214, 0, 18, 0.08), transparent 56%),
    linear-gradient(0deg, rgba(17, 17, 17, 0.04) 1px, transparent 1px),
    var(--white);
  background-size: auto, 34px 34px, auto;
}

.about-page-hero-visual {
  border-left: 1px solid var(--line);
}

.about-page-hero-visual figcaption,
.factory-mosaic figcaption {
  position: absolute;
  left: 22px;
  bottom: 22px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  max-width: calc(100% - 44px);
  min-height: 36px;
  padding: 7px 14px;
  color: var(--white);
  background: rgba(12, 16, 22, 0.84);
  font-size: 13px;
  font-weight: 900;
}

.about-stats {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.about-stats .stats-item {
  padding: 34px 28px;
}

.about-stats .stats-item strong {
  font-size: 42px;
}

.about-company-section,
.about-factory-section,
.about-capacity-section,
.about-quality-section,
.certificate-section {
  scroll-margin-top: 96px;
}

.about-company-section,
.certificate-section {
  background: var(--white);
}

.about-company-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.85fr);
  gap: 42px;
  max-width: var(--max);
  margin: 0 auto;
}

.about-company-copy h2 {
  margin: 0 0 20px;
  color: var(--ink);
  font-size: 44px;
  line-height: 1.12;
  font-weight: 900;
}

.about-company-copy p {
  max-width: 760px;
  margin: 0 0 18px;
  color: var(--muted);
}

.about-scope-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.about-scope-list span {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 7px 14px;
  color: var(--ink);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  font-size: 13px;
  font-weight: 900;
}

.about-rd-panel {
  align-self: stretch;
  padding: 34px;
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(214, 0, 18, 0.18), transparent 70%),
    var(--dark);
  border-top: 4px solid var(--red);
}

.about-rd-panel > span {
  display: block;
  margin-bottom: 14px;
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
}

.about-rd-panel h3 {
  margin: 0 0 14px;
  font-size: 28px;
  line-height: 1.25;
}

.about-rd-panel p {
  margin: 0 0 24px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
}

.about-rd-panel dl {
  display: grid;
  gap: 14px;
  margin: 0;
}

.about-rd-panel div {
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.about-rd-panel dt {
  margin-bottom: 4px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 13px;
  font-weight: 900;
}

.about-rd-panel dd {
  margin: 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 13px;
}

.factory-mosaic {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-auto-rows: 250px;
  gap: 18px;
  max-width: var(--max);
  margin: 0 auto;
}

.factory-mosaic figure {
  position: relative;
  grid-column: span 3;
  margin: 0;
  overflow: hidden;
  background: var(--dark);
  border: 1px solid var(--line);
}

.factory-mosaic .factory-mosaic-large {
  grid-column: span 6;
  grid-row: span 2;
}

.factory-mosaic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.factory-capability-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  max-width: var(--max);
  margin: 28px auto 0;
}

.factory-capability-grid article {
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
}

.factory-capability-grid h3 {
  margin: 0 0 14px;
  color: var(--ink);
  font-size: 22px;
  font-weight: 900;
}

.factory-capability-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.85;
}

.about-capacity-section {
  background: var(--bg-soft);
}

.capacity-grid,
.quality-process,
.certificate-wall {
  display: grid;
  max-width: var(--max);
  margin: 0 auto;
  gap: 18px;
}

.capacity-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.capacity-grid article,
.quality-process article {
  min-width: 0;
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
}

.capacity-grid span,
.quality-process span {
  display: block;
  margin-bottom: 10px;
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
}

.capacity-grid h3,
.quality-process h3 {
  margin: 0 0 10px;
  color: var(--ink);
  font-size: 21px;
  line-height: 1.32;
  font-weight: 900;
}

.capacity-grid p,
.quality-process p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.about-quality-section {
  color: var(--white);
  background: var(--dark);
}

.about-quality-section .section-title {
  color: var(--white);
}

.about-quality-section .section-desc {
  color: rgba(255, 255, 255, 0.62);
}

.quality-process {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  counter-reset: quality-step;
}

.quality-process article {
  position: relative;
  background: var(--dark-2);
  border-color: rgba(255, 255, 255, 0.12);
  border-top-color: var(--red);
}

.quality-process article::after {
  content: "";
  position: absolute;
  top: 42px;
  right: -18px;
  z-index: 2;
  width: 18px;
  height: 2px;
  background: var(--red);
}

.quality-process article:last-child::after {
  display: none;
}

.quality-process h3 {
  color: var(--white);
}

.quality-process p {
  color: rgba(255, 255, 255, 0.62);
}

.certificate-wall {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  align-items: stretch;
}

.protected-document {
  position: relative;
  display: grid;
  grid-template-rows: 220px auto;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
}

.protected-document::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='150' height='86' viewBox='0 0 150 86'%3E%3Cg transform='rotate(-24 75 43)'%3E%3Ctext x='75' y='48' text-anchor='middle' font-size='15' font-family='PingFang SC,Microsoft YaHei,sans-serif' font-weight='800' fill='%23d60012' fill-opacity='0.20' stroke='%23ffffff' stroke-opacity='0.22' stroke-width='0.8'%3E%E5%A4%AA%E5%8E%9F%E5%B8%82%E4%B8%89%E9%87%91%E5%A8%81%3C/text%3E%3C/g%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 150px 86px;
}

.protected-document::after {
  content: "低清展示";
  position: absolute;
  right: 14px;
  top: 184px;
  z-index: 3;
  min-height: 28px;
  padding: 4px 10px;
  color: var(--white);
  background: rgba(20, 24, 32, 0.84);
  font-size: 12px;
  font-weight: 900;
}

.protected-document img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 14px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line);
  opacity: 0.74;
  filter: blur(0.6px) saturate(0.72) contrast(0.88);
  transform: scale(1.03);
}

.protected-document-wide {
  grid-column: span 2;
}

.protected-document figcaption {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  min-height: 58px;
  padding: 12px 14px;
  color: var(--ink);
  background: var(--white);
  font-size: 13px;
  font-weight: 900;
  line-height: 1.35;
}

@media (max-width: 1120px) {
  .nav {
    padding: 0 24px;
  }

  .hero-title {
    font-size: 48px;
  }

  .nav-menu > a,
  .nav-item > a {
    padding: 0 8px;
    font-size: 13px;
  }

  .nav-hotline {
    min-width: 148px;
    padding: 7px 10px 7px 12px;
  }

  .nav-hotline strong {
    font-size: 18px;
  }

  .nav-hotline::after {
    width: 30px;
    height: 30px;
    font-size: 17px;
  }

  .products-grid,
  .quality-grid,
  .product-line-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .industry-card-grid,
  .wear-point-grid {
    grid-template-columns: 1fr;
  }

  .industry-proof-strip,
  .case-proof-strip,
  .selection-question-grid,
	  .industry-download-grid,
	  .case-process-grid,
	  .case-service-grid,
	  .article-card-grid,
	  .tech-empty-grid,
	  .seo-plan-grid,
	  .capacity-grid,
	  .quality-process,
	  .certificate-wall {
	    grid-template-columns: repeat(2, minmax(0, 1fr));
	  }

  .certificate-wall {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .case-partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .tech-library-shell {
    grid-template-columns: 240px minmax(0, 1fr);
  }

  .tech-empty-panel {
    min-height: 380px;
    padding: 40px;
  }

	  .case-feature,
	  .tech-feature,
	  .about-company-layout {
	    grid-template-columns: 1fr;
	  }

  .about-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .factory-mosaic {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-auto-rows: 260px;
  }

  .factory-mosaic figure,
  .factory-mosaic .factory-mosaic-large {
    grid-column: span 1;
    grid-row: span 1;
  }

	  .tech-feature-media {
	    min-height: 360px;
	    border-left: 0;
	    border-top: 1px solid var(--line);
	  }

  .case-feature-media {
    min-height: 420px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .industry-catalog-hero {
    padding-left: 32px;
    padding-right: 32px;
  }

  .industry-entry-grid,
  .industry-part-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .industry-entry-card {
    min-height: 390px;
  }

  .industry-detail-hero,
  .industry-detail-intro {
    grid-template-columns: 1fr;
  }

  .industry-detail-hero-copy {
    padding: 58px 32px 46px;
  }

  .industry-detail-hero-media {
    min-height: 430px;
  }

  .industry-detail-intro {
    padding-left: 32px;
    padding-right: 32px;
  }

  .wear-plate-gallery,
  .pipe-photo-gallery,
  .custom-part-gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .wear-grade-row {
    grid-template-columns: 96px 180px 84px minmax(0, 1fr);
  }

  .wg-hardness-row {
    font-size: 18px;
  }

  .solution-panel {
    grid-template-columns: 1fr;
  }

  .service-grid,
  .pipe-plan-grid,
  .comparison-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 820px) {
  .nav {
    height: 68px;
    gap: 10px;
    padding: 0 18px;
  }

  .nav-logo img {
    width: 132px;
    height: 50px;
  }

  .nav-logo {
    order: 1;
  }

  .nav-toggle {
    order: 3;
    display: block;
  }

  .nav-hotline {
    order: 2;
    grid-template-columns: 1fr;
    min-width: 118px;
    min-height: 44px;
    padding: 7px 10px;
    border-left-width: 3px;
  }

  .nav-hotline span,
  .nav-hotline em {
    display: none;
  }

  .nav-hotline strong {
    margin: 0;
    color: var(--ink);
    font-size: 15px;
    line-height: 1;
  }

  .nav-hotline::after {
    display: none;
  }

  .nav-menu {
    order: 4;
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    bottom: 0;
    display: none;
    height: auto;
    flex-direction: column;
    align-items: stretch;
    overflow: auto;
    background: var(--white);
    border-top: 1px solid var(--line);
  }

  .nav-menu.is-open {
    display: flex;
  }

  .nav-menu > a,
  .nav-item > a {
    height: 50px;
    min-height: 50px;
    flex: 0 0 auto;
    padding: 0 22px;
    border-bottom: 1px solid var(--line);
  }

  .nav-item:hover .dropdown-menu {
    display: none;
  }

  .dropdown-menu {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    margin-top: 68px;
  }

  .subpage-hero {
    grid-template-columns: 1fr;
    margin-top: 68px;
  }

  .hero-image {
    min-height: 270px;
    border-right: 0;
  }

  .hero-caption {
    left: 20px;
    bottom: 22px;
    min-height: 34px;
    padding: 7px 14px;
    font-size: 13px;
  }

  .hero-dots {
    right: 20px;
    bottom: 27px;
    gap: 8px;
  }

  .hero-dot {
    width: 24px;
  }

  .hero-dot.is-active {
    width: 34px;
  }

  .hero-content,
  .section,
  .subpage-hero-copy,
  .cta-banner,
  .footer {
    padding-left: 20px;
    padding-right: 20px;
  }

  .subpage-hero-copy {
    padding-top: 44px;
    padding-bottom: 44px;
  }

  .subpage-hero-copy h1 {
    font-size: 36px;
  }

  .subpage-hero-visual {
    min-height: 300px;
  }

  .subpage-hero-dots {
    right: 20px;
    bottom: 20px;
  }

  .subpage-hero-dot {
    width: 22px;
  }

  .subpage-hero-dot.is-active {
    width: 32px;
  }

  .hero-content {
    padding-top: 42px;
    padding-bottom: 46px;
  }

  .hero-title {
    font-size: 38px;
  }

	  .hero-spec,
	  .stats-bar,
	  .industry-data-grid,
	  .about-grid,
	  .tech-topic-strip {
	    grid-template-columns: 1fr;
	  }

	  .tech-topic-strip a {
	    padding: 16px 20px;
	    border-right: 0;
	    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
	  }

	  .tech-topic-strip a:last-child {
	    border-bottom: 0;
	  }

  .industry-data-grid {
    width: calc(100% + 40px);
    margin-left: -20px;
    margin-right: -20px;
  }

  .industry-metric {
    min-height: 0;
    padding: 22px 20px;
  }

  .solution-head {
    margin-bottom: 34px;
  }

  .solution-block {
    width: calc(100% + 40px);
    margin-left: -20px;
    margin-right: -20px;
    padding-left: 20px;
    padding-right: 20px;
  }

  .solution-tabs {
    display: flex;
    gap: 22px;
    margin-bottom: 30px;
    overflow-x: auto;
  }

  .solution-tab {
    flex: 0 0 auto;
    min-height: 50px;
    padding-right: 0;
    font-size: 15px;
  }

  .solution-tab::after {
    right: 0;
  }

  .solution-visual {
    height: 260px;
  }

  .about-carousel,
  .about-slide img {
    min-height: 320px;
  }

  .about-caption {
    left: 20px;
    bottom: 22px;
  }

  .about-dots {
    right: 20px;
    bottom: 28px;
  }

  .about-dot {
    width: 24px;
  }

  .solution-copy h3 {
    margin-top: 26px;
  }

  .stats-item {
    padding: 28px 22px;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .products-grid,
  .case-grid,
  .quality-grid,
  .service-grid,
  .footer-grid,
  .product-page-shell,
  .product-line-grid,
  .selector-row,
  .product-detail-section,
  .product-detail-section-alt,
  .product-tech-panel,
  .advantage-grid,
  .pipe-plan-grid,
  .comparison-grid,
    .wire-card-grid,
    .wire-card-grid-two,
    .wire-card-grid-four,
    .comparison-table div,
    .industry-page-shell,
    .industry-proof-strip,
    .case-proof-strip,
    .industry-hero-kpis,
    .industry-card-grid,
    .wear-point-grid,
    .industry-entry-grid,
    .industry-detail-hero,
    .industry-detail-intro,
    .detail-facts,
    .industry-part-grid,
	    .case-feature,
	    .case-process-grid,
	  .case-service-grid,
	    .article-card-grid,
	    .tech-empty-grid,
	    .seo-plan-grid,
	    .about-stats,
	    .factory-mosaic,
	    .factory-capability-grid,
	    .capacity-grid,
	    .quality-process,
	    .certificate-wall,
	    .selection-question-grid,
	    .industry-selection-row,
	    .industry-download-grid {
	    grid-template-columns: 1fr;
	  }

  .about-page-hero-visual {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .about-company-copy h2 {
    font-size: 32px;
  }

  .about-rd-panel {
    padding: 26px;
  }

  .about-rd-panel h3 {
    font-size: 24px;
  }

  .factory-mosaic {
    grid-auto-rows: 250px;
  }

  .factory-mosaic figure,
  .factory-mosaic .factory-mosaic-large {
    grid-column: span 1;
    grid-row: span 1;
  }

  .quality-process article::after {
    display: none;
  }

  .protected-document,
  .protected-document-wide {
    grid-column: span 1;
  }

  .industry-catalog-hero {
    margin-top: 68px;
    padding: 44px 20px 54px;
  }

  .industry-catalog-head h1,
  .industry-detail-hero-copy h1 {
    font-size: 34px;
  }

  .industry-catalog-head p,
  .industry-detail-hero-copy p {
    font-size: 15px;
  }

  .industry-entry-card {
    min-height: 360px;
  }

  .industry-entry-copy {
    padding: 22px;
  }

  .industry-entry-copy h2 {
    font-size: 25px;
  }

  .industry-entry-copy p {
    min-height: 0;
  }

  .industry-catalog-note {
    display: grid;
    margin: 0 20px 58px;
    padding: 24px;
  }

  .industry-catalog-note .btn-primary {
    width: 100%;
  }

  .industry-detail-hero {
    min-height: 0;
    margin-top: 68px;
  }

  .industry-detail-hero-copy {
    padding: 42px 20px 36px;
  }

  .detail-back-link {
    margin-bottom: 22px;
  }

  .industry-detail-actions .btn-primary,
  .industry-detail-actions .btn-secondary {
    width: 100%;
  }

  .industry-detail-hero-media {
    min-height: 300px;
  }

  .case-page-hero {
    margin-top: 68px;
  }

  .case-page-hero .subpage-hero-copy {
    padding-top: 42px;
    padding-bottom: 36px;
  }

  .case-page-hero .subpage-hero-actions .btn-primary,
  .case-page-hero .subpage-hero-actions .btn-secondary {
    width: 100%;
  }

  .case-proof-strip article {
    padding: 24px 20px;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .case-proof-strip article:last-child {
    border-bottom: 0;
  }

  .case-feature-media {
    min-height: 300px;
  }

  .case-feature-copy {
    padding: 24px;
  }

  .case-feature-copy h2 {
    font-size: 30px;
  }

  .case-process-grid figure {
    height: 240px;
  }

  .tech-library-shell {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .tech-category-rail {
    position: static;
  }

  .tech-category-rail a {
    min-height: 62px;
  }

  .tech-empty-panel {
    min-height: 330px;
    padding: 30px 24px;
  }

  .case-partners-head {
    grid-template-columns: 1fr;
    align-items: start;
    padding: 24px;
  }

  .case-partner-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .case-partner-card {
    min-height: 116px;
    padding: 16px;
  }

  .case-partner-card:last-child {
    grid-column: span 2;
  }

  .case-mosaic,
  .case-mosaic-reverse {
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
  }

  .case-mosaic-item,
  .case-mosaic-large {
    grid-column: auto;
    grid-row: auto;
    height: 250px;
  }

  .case-mosaic-reverse .case-mosaic-large {
    order: 0;
  }

  .case-mosaic-item figcaption {
    left: 14px;
    bottom: 14px;
    max-width: calc(100% - 28px);
  }

  .industry-detail-intro {
    gap: 16px;
    padding: 28px 20px 0;
  }

  .detail-intro-copy {
    padding: 24px;
  }

  .detail-intro-copy h2 {
    font-size: 26px;
  }

  .detail-facts article {
    min-height: 0;
  }

  .detail-facts strong {
    margin-top: 10px;
  }

  .industry-part-section {
    padding-top: 42px;
    padding-bottom: 58px;
  }

  .industry-part-media {
    height: 240px;
  }

  .industry-part-copy {
    padding: 22px;
  }

  .industry-page-shell {
    padding: 0 20px 58px;
  }

  .industry-side-nav {
    position: static;
    grid-template-columns: 1fr;
    margin-top: 26px;
    margin-bottom: 8px;
  }

  .industry-hero-kpis div {
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
  }

  .industry-hero-kpis div:last-child {
    border-bottom: 0;
  }

  .industry-proof-strip article {
    padding: 24px 20px;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .industry-card {
    grid-template-rows: 220px minmax(0, 1fr);
  }

  .industry-card-body {
    padding: 22px;
  }

  .wear-point-card {
    grid-template-columns: 1fr;
  }

  .wear-point-media {
    min-height: 230px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .selection-section {
    margin-left: 0;
    padding-left: 20px !important;
    padding-right: 20px !important;
  }

  .industry-selection-head {
    display: none;
  }

  .industry-selection-row {
    margin-bottom: 12px;
    border: 1px solid var(--line);
    border-top: 3px solid var(--red);
  }

  .industry-selection-row > * {
    border-right: 0;
  }

  .industry-selection-table {
    gap: 0;
    background: transparent;
    border: 0;
  }

  .wear-grade-head {
    display: none;
  }

  .wear-grade-table {
    gap: 12px;
    border: 0;
    background: transparent;
  }

  .wear-grade-row {
    grid-template-columns: 1fr;
    background: var(--white);
    border: 1px solid var(--line);
    border-top: 3px solid var(--red);
    border-left: 1px solid var(--line);
  }

  .wg-id {
    flex-direction: row;
    justify-content: flex-start;
    gap: 14px;
    padding: 12px 16px;
  }

  .wg-id strong {
    font-size: 20px;
  }

  .wg-id em {
    margin-top: 0;
  }

  .wg-hardness,
  .wg-temp,
  .wg-scenario {
    padding: 14px 16px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .wg-scenario {
    border-bottom: 0;
  }

  .wg-hardness::before,
  .wg-temp::before {
    display: block;
    margin-bottom: 4px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 900;
  }

  .wg-hardness::before {
    content: "耐磨层硬度";
  }

  .wg-temp {
    justify-content: flex-start;
    gap: 12px;
  }

  .wg-temp::before {
    content: "工作温度";
    margin-bottom: 0;
  }

  .wg-sub {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .wg-sub dt {
    margin-top: 6px;
  }

  .wear-plate-gallery,
  .pipe-photo-gallery,
  .custom-part-gallery {
    grid-template-columns: 1fr;
  }

  .wear-tech-panel .spec-grid {
    grid-template-columns: 1fr;
  }

  .product-page-shell {
    padding: 0 20px 58px;
  }

  .product-side-nav {
    position: static;
    grid-template-columns: 1fr;
    margin-top: 26px;
    margin-bottom: 8px;
  }

  .product-page-content .section {
    padding-left: 0;
    padding-right: 0;
  }

  .product-line-card h3,
  .product-line-card p {
    min-height: 0;
  }

  .product-detail-section,
  .product-detail-section-alt {
    gap: 26px;
    padding: 58px 0;
  }

  .product-detail-media,
  .tech-media {
    height: 280px;
  }

  .cta-banner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .contact-form {
    padding: 22px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .floating-contact {
    right: 12px;
    bottom: 12px;
    gap: 8px;
  }

  .float-contact-button {
    width: 48px;
    height: 48px;
    font-size: 11px;
  }

  .float-wechat-panel {
    right: 0;
    bottom: 164px;
    width: 190px;
  }

  .about-content {
    padding: 28px;
  }
}