:root {
  --bg: #070b10;
  --bg2: #0d131b;
  --panel: #111821;
  --panel2: #161f2a;
  --line: rgba(213, 184, 118, 0.22);
  --gold: #d8b46a;
  --gold2: #a88443;
  --text: #e9eef6;
  --muted: #8b97a9;
  --muted2: #657284;
  --light: #f7f3ea;
  --light2: #ebe4d6;
  --darkText: #111821;
  --radius: 22px;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  --max: 1200px;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial,
    sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  display: block;
  width: 100%;
  height: auto;
}
button,
input,
select,
textarea {
  font: inherit;
}
.container {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}
.section {
  padding: 110px 0;
}
.section-dark {
  background: linear-gradient(180deg, #070b10 0%, #0d131b 100%);
}
.section-light {
  background: linear-gradient(180deg, var(--light) 0%, #fffaf0 100%);
  color: var(--darkText);
}
.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  letter-spacing: 0;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}
.eyebrow.dark {
  color: #98723a;
}
.section-title h2,
.section-head h2 {
  margin: 0;
  font-size: 52px;
  line-height: 1.12;
  letter-spacing: 0;
  font-weight: 800;
 
}
.section-title p,
.section-head p {
  color: var(--muted);
  max-width: 750px;
}
.section-light .section-title p,
.section-light .section-head p {
  color: #667085;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid rgba(216, 180, 106, 0.45);
  background: linear-gradient(135deg, #e4c578, #9f7737);
  color: #0b0f14;
  border-radius: 999px;
  padding: 13px 22px;
  font-weight: 700;
  box-shadow: 0 12px 34px rgba(216, 180, 106, 0.18);
  transition: 0.25s;
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 42px rgba(216, 180, 106, 0.26);
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: none;
}
.btn-small {
  padding: 9px 15px;
  font-size: 14px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(7, 11, 16, 0.82);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.desktop-nav a[href="faq.html"],
.mobile-panel a[href="faq.html"],
.site-footer a[href="faq.html"] {
  display: none;
}
.nav-wrap {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-mark {
  width: 42px;
  height: 42px;
  border: 1px solid rgba(216, 180, 106, 0.55);
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: var(--gold);
  font-weight: 800;
  background: linear-gradient(135deg, rgba(216, 180, 106, 0.16), rgba(255, 255, 255, 0.03));
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.brand-text strong {
  letter-spacing: 0;
}
.brand-text small {
  color: var(--muted);
  font-size: 12px;
}
.desktop-nav {
  display: flex;
  gap: 24px;
  color: #b8c1ce;
  font-size: 14px;
}
.desktop-nav a:hover {
  color: var(--gold);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}
.language-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid rgba(216, 180, 106, 0.28);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
}
.language-switch button,
.language-switch a {
  min-width: 42px;
  height: 30px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: #c5ceda;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.language-switch button.is-active,
.language-switch a.is-active {
  background: var(--gold);
  color: #111821;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #c5ceda;
  font-size: 14px;
  line-height: 1;
}
.menu-btn {
  display: none;
  background: none;
  border: 0;
  width: 42px;
  height: 42px;
}
.menu-btn span {
  display: block;
  height: 2px;
  background: #fff;
  margin: 7px;
}
.mobile-panel {
  display: none;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 8px max(20px, calc((100vw - var(--max)) / 2)) 18px;
  background: rgba(8, 12, 17, 0.98);
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.24);
}
.mobile-panel[hidden] {
  display: none;
}
.mobile-panel a {
  display: block;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  color: #c7d0de;
}
.mobile-panel a:last-child {
  border-bottom: 0;
}
.hero {
  position: relative;
  overflow: hidden;
  min-height: 690px;
  padding: 98px 0 74px;
  background:
    radial-gradient(circle at 88% 18%, rgba(99, 150, 218, 0.26), transparent 29%),
    radial-gradient(circle at 49% 100%, rgba(33, 69, 113, 0.28), transparent 42%),
    linear-gradient(115deg, #05080d 0%, #070d15 48%, #0b1726 100%);
}
.hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto auto;
  width: 680px;
  height: 680px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(216, 180, 106, 0.18), rgba(216, 180, 106, 0) 70%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  width: 760px;
  height: 760px;
  top: -455px;
  right: -205px;
  border: 1px solid rgba(191, 220, 255, 0.36);
  border-radius: 50%;
  box-shadow: 0 0 54px rgba(153, 208, 255, 0.1), inset 0 0 50px rgba(153, 208, 255, 0.05);
  pointer-events: none;
}
.hero-grid {
  position: static;
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  min-height: 518px;
}
.hero-visual {
  align-self: end;
}
.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 680px;
}
.hero-copy h1 {
  font-size: 68px;
  line-height: 1.08;
  margin: 0 0 22px;
  letter-spacing: 0;
  font-weight: 800;
}
.hero-copy h1 span {
  color: var(--gold);
}
.hero-desc {
  max-width: 720px;
  color: #aeb8c7;
  font-size: 18px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin: 34px 0;
}
.hero-proof {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 32px;
}
.proof-item {
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 18px;
}
.proof-item strong {
  display: block;
  color: var(--text);
  font-size: 20px;
}
.proof-item span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-top: 3px;
}
.hero-visual {
  position: relative;
}
.hero-visual-product {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  z-index: 0;
  pointer-events: none;
}
.hero-visual-product::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(5, 8, 13, 0.94) 0%, rgba(5, 8, 13, 0.48) 24%, transparent 52%),
    linear-gradient(180deg, transparent 68%, rgba(7, 13, 21, 0.32) 82%, #070d15 100%);
  pointer-events: none;
}
.hero-visual-product::after {
  content: "";
  position: absolute;
  inset: 18% 5% 4% 10%;
  z-index: -1;
  background: radial-gradient(ellipse, rgba(75, 146, 222, 0.2), transparent 67%);
  filter: blur(22px);
}
.hero-visual-product img {
  position: relative;
  z-index: 0;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center;
  filter: drop-shadow(0 30px 32px rgba(0, 0, 0, 0.35));
}
.image-frame {
  border: 1px solid rgba(216, 180, 106, 0.28);
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  padding: 10px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.image-frame img {
  border-radius: 20px;
}
.assurance-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 12px;
}
.assurance-card {
  background: rgba(11, 16, 23, 0.78);
  border: 1px solid rgba(216, 180, 106, 0.28);
  border-radius: 18px;
  padding: 15px;
}
.assurance-card small {
  display: block;
  color: var(--gold);
  font-size: 10px;
  letter-spacing: 0;
}
.assurance-card strong {
  display: block;
  font-size: 17px;
  margin-top: 3px;
}
.assurance-card span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}
.trust-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: #0b1017;
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
}
.trust-item {
  padding: 30px 22px;
  border-left: 1px solid rgba(255, 255, 255, 0.08);
}
.trust-item:last-child {
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}
.trust-item b {
  display: block;
  color: var(--gold);
  font-size: 22px;
}
.trust-item span {
  display: block;
  color: #aab5c3;
  margin-top: 5px;
  font-size: 14px;
}
.about-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 52px;
  align-items: start;
}
.about-card {
  padding: 28px;
  border-radius: 28px;
  background: #fff;
  border: 1px solid #eadfcd;
  box-shadow: 0 24px 60px rgba(63, 50, 27, 0.08);
}
.about-card h3 {
  margin: 0 0 14px;
  font-size: 26px;
}
.info-table {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}
.info-table div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 20px;
  padding: 15px 0;
  border-top: 1px solid #eadfcd;
}
.info-table dt {
  color: #8c6f3b;
  font-weight: 700;
}
.info-table dd {
  margin: 0;
  color: #394150;
}
.cred-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.cred {
  padding: 24px;
  border: 1px solid #eadfcd;
  border-radius: 22px;
  background: #fff;
}
.cred span {
  color: #9c773f;
  font-weight: 800;
  font-size: 13px;
}
.cred h3 {
  margin: 8px 0 8px;
  font-size: 22px;
}
.cred p {
  margin: 0;
  color: #616c7a;
}
.products-layout {
  display: grid;
  gap: 24px;
}
.product-row {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 24px;
  padding: 18px;
  border-radius: 30px;
  background: #111821;
  border: 1px solid rgba(216, 180, 106, 0.22);
  box-shadow: var(--shadow);
}
.product-row:nth-child(even) {
  grid-template-columns: 1.28fr 0.72fr;
}
.product-row:nth-child(even) .product-media {
  order: 2;
}
.product-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  height: auto;
  object-fit: cover;
  border-radius: 22px;
}
.product-content {
  padding: 26px;
}
.product-content h3 {
  font-size: 32px;
  margin: 6px 0 10px;
}
.product-content p {
  color: #aeb8c6;
}
.pill {
  display: inline-flex;
  border: 1px solid rgba(216, 180, 106, 0.3);
  color: var(--gold);
  border-radius: 999px;
  padding: 6px 11px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
}
.spec-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 22px 0;
}
.spec {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.035);
}
.spec b {
  display: block;
  color: #fff;
}
.spec span {
  font-size: 12px;
  color: var(--muted);
}
.link-more {
  display: inline-flex;
  color: var(--gold);
  font-weight: 700;
}
.quality-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 50px;
  align-items: center;
}
.check-list {
  display: grid;
  gap: 14px;
}
.check {
  display: flex;
  gap: 14px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
}
.check i {
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: rgba(216, 180, 106, 0.18);
  color: var(--gold);
  display: grid;
  place-items: center;
  font-style: normal;
}
.check b {
  display: block;
}
.check span {
  display: block;
  color: var(--muted);
  font-size: 14px;
}
.service-grid {
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  gap: 52px;
  align-items: center;
}
.timeline {
  counter-reset: step;
  display: grid;
  gap: 14px;
  margin-top: 26px;
}
.timeline div {
  counter-increment: step;
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 16px;
  align-items: center;
  padding: 18px;
  border-radius: 18px;
  background: #fff;
  border: 1px solid #eadfcd;
}
.timeline strong {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: #111821;
  color: var(--gold);
}
.timeline span {
  color: #364253;
  line-height: 1.55;
}
.case-head-row {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 34px;
  align-items: end;
}
.replace-tip {
  padding: 22px;
  border-radius: 22px;
  background: #111821;
  color: #fff;
}
.replace-tip strong {
  display: block;
  color: var(--gold);
  margin-bottom: 8px;
}
.replace-tip span {
  font-size: 14px;
  color: #aeb8c6;
}
.case-feature {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 32px;
  margin-top: 36px;
  padding: 20px;
  border-radius: 32px;
  background: #fff;
  border: 1px solid #eadfcd;
  box-shadow: 0 30px 80px rgba(64, 50, 24, 0.1);
}
.main-shot {
  position: relative;
}
.main-shot img {
  border-radius: 24px;
}
.image-label {
  position: absolute;
  left: 16px;
  bottom: 16px;
  border: 1px solid rgba(216, 180, 106, 0.5);
  background: rgba(7, 11, 16, 0.68);
  color: #fff;
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 13px;
}
.thumbs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-top: 10px;
}
.thumbs button,
.mini-thumbs button {
  border: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
  border-radius: 14px;
  overflow: hidden;
  outline: 2px solid transparent;
}
.thumbs button.is-active,
.mini-thumbs button.is-active {
  outline-color: var(--gold);
}
.thumbs img {
  height: 76px;
  object-fit: cover;
}
.case-content {
  padding: 12px 16px 12px 0;
}
.case-content h3 {
  color: #111821;
  font-size: 34px;
  line-height: 1.18;
  margin: 6px 0 12px;
}
.case-content p {
  color: #5f6b78;
}
.case-meta {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin: 24px 0;
}
.case-meta div {
  padding: 14px;
  border-radius: 16px;
  background: #f7f0e4;
  border: 1px solid #eadfcd;
}
.case-meta dt {
  font-size: 12px;
  color: #8c6f3b;
  font-weight: 800;
}
.case-meta dd {
  margin: 3px 0 0;
  color: #17202b;
}
.case-points {
  padding-left: 20px;
  color: #4c5664;
}
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 24px;
}
.case-card {
  background: #fff;
  border: 1px solid #eadfcd;
  border-radius: 24px;
  overflow: hidden;
}
.case-card .mini-main img {
  height: 210px;
  object-fit: cover;
}
.mini-thumbs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  padding: 10px;
}
.mini-thumbs img {
  height: 72px;
  object-fit: cover;
}
.case-card-body {
  padding: 20px;
}
.case-card-body span {
  color: #9a743c;
  font-weight: 800;
  font-size: 12px;
}
.case-card-body h3 {
  color: #111821;
  margin: 7px 0;
  font-size: 21px;
}
.case-card-body p {
  margin: 0;
  color: #677282;
}
.warranty-box {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 42px;
  align-items: center;
}
.warranty-panel {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.warranty-card {
  border: 1px solid rgba(216, 180, 106, 0.23);
  background: rgba(255, 255, 255, 0.045);
  border-radius: 22px;
  padding: 22px;
}
.warranty-card b {
  display: block;
  color: #fff;
  font-size: 18px;
}
.warranty-card span {
  display: block;
  color: var(--muted);
  font-size: 14px;
  margin-top: 5px;
}
.dealer-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 50px;
}
.support-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.support-item {
  padding: 24px;
  border-radius: 22px;
  background: #fff;
  border: 1px solid #eadfcd;
}
.support-item b {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 13px;
  background: #111821;
  color: var(--gold);
  margin-bottom: 15px;
}
.support-item h3 {
  margin: 0 0 8px;
}
.support-item p {
  margin: 0;
  color: #667085;
}
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.news-card {
  border: 1px solid rgba(216, 180, 106, 0.18);
  border-radius: 24px;
  overflow: hidden;
  background: #111821;
}
.news-card img {
  height: 190px;
  object-fit: cover;
}
.news-card div {
  padding: 20px;
}
.news-card span {
  font-size: 12px;
  color: var(--gold);
  font-weight: 800;
}
.news-card h3 {
  margin: 8px 0;
  font-size: 22px;
}
.news-card p {
  color: #aeb8c6;
  margin: 0;
}
.faq-grid {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 44px;
}
.faq-list {
  display: grid;
  gap: 12px;
}
.faq-item {
  border: 1px solid #eadfcd;
  border-radius: 18px;
  background: #fff;
  overflow: hidden;
}
.faq-item summary {
  cursor: pointer;
  padding: 18px 20px;
  font-weight: 800;
}
.faq-item p {
  margin: 0;
  padding: 0 20px 20px;
  color: #667085;
}
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 50px;
}
.contact-info {
  display: grid;
  gap: 10px;
  margin-top: 24px;
  color: #d7deea;
}
.contact-form {
  background: #fff;
  color: #111821;
  border-radius: 26px;
  padding: 26px;
  box-shadow: var(--shadow);
}
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.contact-form label {
  display: grid;
  gap: 7px;
  color: #394150;
  font-weight: 700;
  font-size: 14px;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid #e2d7c4;
  border-radius: 14px;
  padding: 13px;
  background: #fbf8f1;
  color: #111821;
}
.contact-form textarea {
  min-height: 118px;
  resize: vertical;
}
.contact-form .full {
  grid-column: 1/-1;
}
.form-note {
  font-size: 12px;
  color: #7a8493;
}
.site-footer {
  background: #05080c;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 52px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr repeat(3, 0.7fr);
  gap: 30px;
}
.footer-grid p,
.copyright {
  color: var(--muted);
}
.footer-grid h4 {
  color: #fff;
  margin: 0 0 12px;
}
.footer-grid a {
  display: block;
  color: #aeb8c6;
  margin: 7px 0;
}
.copyright {
  margin-top: 36px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 13px;
}
.page-hero {
  padding: 86px 0 62px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background:
    radial-gradient(circle at 72% 12%, rgba(216, 180, 106, 0.16), transparent 45%),
    linear-gradient(180deg, #070b10, #0d131b);
}
.page-hero h1 {
  font-size: 64px;
  line-height: 1.05;
  margin: 0 0 14px;
  letter-spacing: 0;
}
.page-hero p {
  max-width: 1200px;
  color: #aeb8c6;
  font-size: 18px;
}
.content-rich {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 44px;
}
.side-nav {
  position: sticky;
  top: 100px;
  align-self: start;
  border: 1px solid rgba(216, 180, 106, 0.16);
  border-radius: 22px;
  padding: 18px;
  background: #0e151e;
}
.side-nav a {
  display: block;
  padding: 12px;
  border-radius: 12px;
  color: #aeb8c6;
}
.side-nav a:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--gold);
}
.rich-panel {
  display: grid;
  gap: 22px;
}
.rich-block {
  padding: 28px;
  border: 1px solid rgba(216, 180, 106, 0.18);
  border-radius: 26px;
  background: #111821;
}
.rich-block h2 {
  margin: 0 0 12px;
  font-size: 32px;
}
.rich-block p,
.rich-block li {
  color: #aeb8c6;
}
.product-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 26px 0 30px;
}
.product-feature-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(216, 180, 106, 0.18);
  border-radius: 18px;
  background: #0d141c;
}
.product-feature-card img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: #17212d;
}
.product-feature-card figcaption {
  padding: 18px 18px 20px;
}
.product-feature-card h3 {
  margin: 0 0 8px;
  color: #f0f4f8;
  font-size: 19px;
}
.product-feature-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
}
.product-delivery-showcase {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: 30px;
  align-items: stretch;
  overflow: hidden;
}
.product-delivery-media {
  min-height: 480px;
  overflow: hidden;
  border: 1px solid rgba(216, 180, 106, 0.2);
  border-radius: 20px;
  background: #0b1118;
}
.product-delivery-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-delivery-copy {
  align-self: center;
}
.product-delivery-copy h2 {
  max-width: 520px;
  font-size: clamp(30px, 3vw, 46px);
  line-height: 1.18;
}
.product-delivery-points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 24px 0 0;
}
.product-delivery-points div {
  padding: 16px;
  border: 1px solid rgba(216, 180, 106, 0.16);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.035);
}
.product-delivery-points strong,
.product-delivery-points span {
  display: block;
}
.product-delivery-points strong {
  margin-bottom: 7px;
  color: #f0f4f8;
  font-size: 16px;
}
.product-delivery-points span {
  color: #aeb8c6;
  font-size: 13px;
  line-height: 1.65;
}
.product-delivery-actions,
.product-section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
.quick-consult-section {
  position: relative;
}
.quick-consult {
  padding: clamp(24px, 4vw, 48px);
  border: 1px solid rgba(216, 180, 106, 0.3);
  border-radius: 28px;
  color: #f0f4f8;
  background:
    radial-gradient(circle at 88% 12%, rgba(216, 180, 106, 0.16), transparent 34%),
    #111821;
  box-shadow: 0 24px 70px rgba(7, 12, 18, 0.16);
}
.quick-consult-head {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: 28px;
  align-items: end;
  margin-bottom: 30px;
}
.quick-consult-head h2 {
  margin: 0;
  font-size: clamp(28px, 3.4vw, 46px);
}
.quick-consult-head > p {
  margin: 0;
  color: #aeb8c6;
  line-height: 1.8;
}
.quick-consult-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 26px;
}
.quick-consult-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.quick-consult label,
.quick-consult label span {
  display: block;
}
.quick-consult label span {
  margin-bottom: 8px;
  color: #d9e0e8;
  font-size: 14px;
  font-weight: 700;
}
.quick-consult input,
.quick-consult select,
.quick-consult textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 14px;
  outline: none;
  color: #f0f4f8;
  background: rgba(255, 255, 255, 0.055);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.quick-consult input,
.quick-consult select {
  min-height: 52px;
  padding: 0 14px;
}
.quick-consult select option {
  color: #111821;
}
.quick-consult textarea {
  min-height: 165px;
  padding: 15px;
  resize: vertical;
  line-height: 1.75;
}
.quick-consult input:focus,
.quick-consult select:focus,
.quick-consult textarea:focus {
  border-color: rgba(216, 180, 106, 0.78);
  box-shadow: 0 0 0 3px rgba(216, 180, 106, 0.12);
}
.quick-consult-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}
.consult-status {
  margin: 12px 0 0;
  color: #aeb8c6;
  font-size: 13px;
}
.production-overview {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 26px;
  align-items: center;
}
.production-overview-copy > p:not(.eyebrow),
.production-video p:not(.eyebrow) {
  max-width: 620px;
}
.production-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}
.production-tags span {
  border: 1px solid rgba(216, 180, 106, 0.3);
  border-radius: 999px;
  padding: 8px 12px;
  color: var(--gold);
  font-size: 13px;
}
.production-overview-media {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 12px;
}
.production-overview-media img {
  width: 100%;
  height: 250px;
  border-radius: 16px;
  object-fit: cover;
}
.production-overview-media img:last-child {
  height: 185px;
  align-self: end;
}
.production-gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}
.production-gallery figure {
  position: relative;
  min-height: 160px;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(216, 180, 106, 0.18);
  border-radius: 14px;
  background: #0d141c;
}
.production-gallery img {
  width: 100%;
  height: 100%;
  min-height: 160px;
  object-fit: cover;
  transition: transform 0.35s ease;
}
.production-gallery figure:hover img { transform: scale(1.04); }
.production-gallery figcaption {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 26px 12px 11px;
  color: #fff;
  font-weight: 800;
  font-size: 14px;
  background: linear-gradient(transparent, rgba(8, 13, 19, 0.88));
}
.production-video {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 26px;
  align-items: center;
}
.production-video video {
  display: block;
  width: 100%;
  max-height: 450px;
  border-radius: 16px;
  background: #080d13;
}
.table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 18px;
}
.table th,
.table td {
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-align: left;
}
.table th {
  color: var(--gold);
  background: rgba(216, 180, 106, 0.07);
}
.reveal {
  animation: fadeUp 0.65s ease both;
}
.delay-1 {
  animation-delay: 0.08s;
}
.delay-2 {
  animation-delay: 0.16s;
}
.delay-3 {
  animation-delay: 0.24s;
}
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@media (max-width: 980px) {
  .desktop-nav,
  .nav-link {
    display: none;
  }
  .menu-btn {
    display: block;
  }
  .mobile-panel:not([hidden]) {
    display: block;
  }
  .hero-grid,
  .about-grid,
  .quality-grid,
  .service-grid,
  .case-feature,
  .warranty-box,
  .dealer-grid,
  .faq-grid,
  .contact-grid,
  .content-rich {
    grid-template-columns: 1fr;
  }
  .hero-proof,
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero {
    min-height: 0;
    padding: 58px 0 28px;
  }
  .hero-grid {
    min-height: 0;
  }
  .hero-copy {
    max-width: none;
  }
  .hero-desc {
    font-size: 16px;
  }
  .hero-visual-product {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    pointer-events: none;
  }
  .hero-visual-product img {
    height: 100%;
    object-fit: cover;
    object-position: 68% center;
  }
  .product-row,
  .product-row:nth-child(even) {
    grid-template-columns: 1fr;
  }
  .product-row:nth-child(even) .product-media {
    order: 0;
  }
  .case-head-row,
  .case-grid,
  .news-grid,
  .footer-grid,
  .support-list {
    grid-template-columns: 1fr;
  }
  .side-nav {
    position: static;
  }
  .case-content {
    padding: 0;
  }
  .assurance-strip {
    grid-template-columns: 1fr;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .contact-form .full {
    grid-column: auto;
  }
}
@media (max-width: 560px) {
  .container {
    width: min(100% - 26px, var(--max));
  }
  .section {
    padding: 72px 0;
  }
  .hero {
    padding: 48px 0 24px;
  }
  .hero::after {
    width: 430px;
    height: 430px;
    top: -255px;
    right: -190px;
  }
  .hero-visual-product {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    margin: 0;
  }
  .hero-visual-product img {
    height: 100%;
    object-fit: cover;
    object-position: 70% center;
  }
  .nav-wrap {
    height: 66px;
    gap: 12px;
  }
  .nav-actions {
    gap: 8px;
  }
  .language-switch button,
  .language-switch a {
    min-width: 36px;
    height: 28px;
    font-size: 11px;
  }
  .nav-actions .btn-small {
    display: none;
  }
  .brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 12px;
  }
  .brand-text strong {
    font-size: 14px;
  }
  .brand-text small {
    display: none;
  }
  .hero-actions {
    flex-direction: column;
  }
  .hero-copy h1 {
    font-size: 36px;
    line-height: 1.12;
    margin-bottom: 16px;
  }
  .hero-desc {
    font-size: 15px;
    line-height: 1.8;
  }
  .btn {
    width: 100%;
  }
  .hero-proof {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
  .hero-proof .proof-item {
    padding: 13px 12px;
  }
  .hero-proof .proof-item strong {
    font-size: 18px;
  }
  .hero-proof .proof-item span {
    font-size: 11px;
  }
  .trust-grid,
  .trust-grid,
  .spec-grid,
  .case-meta,
  .warranty-panel {
    grid-template-columns: 1fr;
  }
  .thumbs {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ===== V5 refinements: content depth, scalable cases, QR contact ===== */
.contact {
  padding: 118px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  overflow: hidden;
}
.contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(216, 180, 106, 0.16), transparent 36%);
  pointer-events: none;
}
.contact-panel {
  position: relative;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: center;
}
.contact-copy h2 {
  font-size: 50px;
  line-height: 1.12;
  margin: 0 0 16px;
  letter-spacing: 0;
}
.contact-copy p {
  color: #aeb8c6;
}
.contact-badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 24px;
}
.contact-badges span {
  border: 1px solid rgba(216, 180, 106, 0.28);
  background: rgba(255, 255, 255, 0.04);
  color: var(--gold);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 800;
}
.contact-methods {
  display: grid;
  gap: 16px;
}
.qr-card {
  display: grid;
  grid-template-columns: 178px 1fr;
  gap: 22px;
  align-items: center;
  border: 1px solid rgba(216, 180, 106, 0.28);
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.035));
  padding: 22px;
  box-shadow: var(--shadow);
}
.qr-card img {
  border-radius: 20px;
  background: #fff;
}
.qr-card span,
.method-card small {
  display: block;
  color: var(--gold);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0;
  text-transform: uppercase;
}
.qr-card strong {
  display: block;
  font-size: 28px;
  line-height: 1.15;
  margin: 8px 0;
}
.qr-card p {
  margin: 0;
  color: #aeb8c6;
}
.method-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.method-card {
  display: block;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.04);
  padding: 20px;
}
.method-card strong {
  display: block;
  color: #fff;
  font-size: 19px;
  margin: 5px 0;
}
.method-card span {
  display: block;
  color: #8b97a9;
  font-size: 13px;
}
.section-actions {
  margin-top: 30px;
}
.read-more {
  display: block;
  margin-top: 14px;
  color: var(--gold);
  font-size: 14px;
}
.news-card {
  transition: 0.25s;
}
.news-card:hover {
  transform: translateY(-4px);
  border-color: rgba(216, 180, 106, 0.45);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.2);
}
.article-feature {
  margin-bottom: 28px;
}
.article-feature-card {
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 28px;
  align-items: center;
  border: 1px solid rgba(216, 180, 106, 0.22);
  border-radius: 30px;
  background: #111821;
  padding: 20px;
  box-shadow: var(--shadow);
}
.article-feature-card img {
  border-radius: 22px;
}
.article-feature-card h2 {
  font-size: 46px;
  line-height: 1.14;
  margin: 12px 0;
}
.article-feature-card p {
  color: #aeb8c6;
}
.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 24px;
}
.academy-matrix {
  display: grid;
  gap: 46px;
  margin-top: 44px;
}
.academy-column {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 28px;
  align-items: start;
  padding-top: 32px;
  border-top: 1px solid rgba(216, 180, 106, 0.22);
}
.academy-column-head {
  position: sticky;
  top: 102px;
}
.academy-column-head span {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(216, 180, 106, 0.42);
  border-radius: 16px;
  color: var(--gold);
  font-weight: 900;
  background: rgba(216, 180, 106, 0.08);
}
.academy-column-head h2 {
  margin: 16px 0 10px;
  color: #fff;
  font-size: 28px;
  line-height: 1.22;
}
.academy-column-head p {
  margin: 0;
  color: #aeb8c6;
}
.academy-topic-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.academy-topic {
  min-height: 178px;
  padding: 20px;
  border: 1px solid rgba(216, 180, 106, 0.16);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.045);
}
.academy-topic h3 {
  margin: 0 0 10px;
  color: #fff;
  font-size: 18px;
  line-height: 1.36;
}
.academy-topic p {
  margin: 0;
  color: #aeb8c6;
  font-size: 14px;
  line-height: 1.7;
}
.academy-topic-link {
  display: block;
}
.academy-topic-link b {
  display: inline-block;
  margin-top: 14px;
  color: var(--gold);
  font-size: 14px;
}
.academy-topic-link:hover {
  transform: translateY(-3px);
  border-color: rgba(216, 180, 106, 0.45);
  background: rgba(216, 180, 106, 0.075);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.18);
}
.academy-faq {
  margin-top: 76px;
}
.article-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 46px;
}
.article-sidebar {
  position: sticky;
  top: 102px;
  align-self: start;
  display: grid;
  gap: 16px;
}
.toc-card {
  border: 1px solid rgba(216, 180, 106, 0.18);
  border-radius: 22px;
  background: #101720;
  padding: 20px;
}
.toc-card strong {
  display: block;
  color: #fff;
  margin-bottom: 12px;
}
.toc-card a {
  display: block;
  color: #aeb8c6;
  padding: 9px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.toc-card a:hover {
  color: var(--gold);
}
.toc-card p {
  color: #8b97a9;
  margin: 0;
}
.article-main {
  min-width: 0;
}
.article-hero-image {
  border-radius: 28px;
  border: 1px solid rgba(216, 180, 106, 0.2);
  box-shadow: var(--shadow);
}
.article-content {
  margin-top: 24px;
  border: 1px solid rgba(216, 180, 106, 0.18);
  border-radius: 28px;
  background: #111821;
  padding: 34px;
}
.article-lead {
  font-size: 18px;
  color: #cbd4e1;
}
.article-content h2 {
  font-size: 30px;
  margin: 34px 0 10px;
  color: #fff;
}
.article-content p {
  color: #aeb8c6;
}
.article-cta {
  margin-top: 34px;
  border: 1px solid rgba(216, 180, 106, 0.28);
  border-radius: 24px;
  background: rgba(216, 180, 106, 0.07);
  padding: 24px;
}
.article-cta h3 {
  margin: 0 0 8px;
  font-size: 24px;
}
.case-toolbar {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 34px;
  align-items: end;
  margin-bottom: 34px;
}
.case-toolbar h2 {
  margin: 0;
  font-size: 50px;
  letter-spacing: 0;
}
.case-toolbar p {
  color: #667085;
}
.filter-pills {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.filter-pills a {
  border: 1px solid #ddcfb7;
  border-radius: 999px;
  padding: 9px 13px;
  background: #fff;
  color: #3d4652;
  font-weight: 800;
  font-size: 13px;
}
.filter-pills a:hover {
  background: #111821;
  color: var(--gold);
  border-color: #111821;
}
.case-list-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin: 58px 0 20px;
}
.case-list-head h2 {
  margin: 0;
  font-size: 36px;
}
.case-list-head p {
  max-width: 620px;
  color: #667085;
  margin: 0;
}
.case-controls {
  display: grid;
  gap: 14px;
  justify-items: end;
  min-width: 360px;
}
.case-search {
  width: min(100%, 420px);
  display: grid;
  gap: 7px;
}
.case-search span {
  color: #cbd4e1;
  font-size: 13px;
  font-weight: 800;
}
.case-search input {
  width: 100%;
  height: 46px;
  border: 1px solid rgba(216, 180, 106, 0.3);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  color: #fff;
  padding: 0 18px;
  outline: none;
}
.case-search input::placeholder {
  color: #94a3b8;
}
.case-search input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 4px rgba(216, 180, 106, 0.16);
}
.case-list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.case-list-card {
  display: block;
  background: #fff;
  border: 1px solid #eadfcd;
  border-radius: 24px;
  overflow: hidden;
  transition: 0.25s;
}
.case-list-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 26px 70px rgba(64, 50, 24, 0.12);
}
.case-list-card img {
  height: 220px;
  object-fit: cover;
}
.case-list-card div {
  padding: 20px;
}
.case-list-card span {
  color: #9a743c;
  font-weight: 800;
  font-size: 12px;
}
.case-list-card h3 {
  color: #111821;
  font-size: 22px;
  line-height: 1.25;
  margin: 7px 0;
}
.case-list-card p {
  color: #677282;
  margin: 0;
}
.case-list-card b {
  display: block;
  margin-top: 14px;
  color: #9a743c;
}
.case-list-card.is-hidden {
  display: none;
}
.case-filter-status {
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: center;
  margin-top: 30px;
  color: #aeb8c6;
}
.case-filter-status button {
  border: 1px solid rgba(216, 180, 106, 0.35);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--gold);
  min-height: 38px;
  padding: 0 16px;
  font-weight: 800;
  cursor: pointer;
}
.case-filter-status button:hover {
  background: var(--gold);
  color: #111821;
}
.case-empty {
  margin: 28px 0 0;
  border: 1px solid rgba(216, 180, 106, 0.24);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.05);
  color: #cbd4e1;
  padding: 22px;
  text-align: center;
}
.pagination {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 34px;
}
.pagination a,
.pagination span {
  min-width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid #ddcfb7;
  display: grid;
  place-items: center;
  color: #394150;
  background: #fff;
  padding: 0 14px;
}
.pagination .is-current {
  background: #111821;
  color: var(--gold);
  border-color: #111821;
}
.case-detail-feature {
  margin-top: 0;
}
.case-video-section {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 26px;
  align-items: center;
  margin-top: 28px;
  border: 1px solid #eadfcd;
  border-radius: 24px;
  background: #fff;
  padding: 26px;
}
.case-video-section .case-video-tabs {
  grid-column: 2;
}
.case-video-section[hidden] {
  display: none;
}
.case-video-copy h2 {
  margin: 0 0 10px;
  color: #111821;
  font-size: 30px;
  line-height: 1.25;
}
.case-video-copy p:not(.eyebrow) {
  margin: 0;
  color: #596575;
}
.case-video-wrap {
  overflow: hidden;
  border-radius: 20px;
  background: #111821;
  box-shadow: 0 22px 60px rgba(64, 50, 24, 0.12);
}
.case-video-wrap video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 520px;
  object-fit: cover;
  background: #111821;
}
.case-video-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.case-video-tabs button {
  min-height: 38px;
  border: 1px solid #ddcfb7;
  border-radius: 999px;
  background: #fff;
  color: #394150;
  padding: 0 15px;
  font-weight: 800;
  cursor: pointer;
}
.case-video-tabs button.is-active {
  background: #111821;
  color: var(--gold);
  border-color: #111821;
}
.detail-story {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 28px;
}
.story-block {
  background: #fff;
  border: 1px solid #eadfcd;
  border-radius: 24px;
  padding: 26px;
}
.story-block h2 {
  margin: 0 0 10px;
  font-size: 28px;
}
.story-block p {
  color: #596575;
  margin: 0;
}
.back-row {
  margin-top: 28px;
}
.back-row .btn-ghost {
  color: #111821;
  border-color: #111821;
  background: transparent;
}
.contact-form {
  display: none;
}
.footer-grid div:last-child a:nth-child(3) {
  color: #aeb8c6;
}
@media (max-width: 980px) {
  .contact-panel,
  .article-feature-card,
  .article-grid,
  .article-layout,
  .case-toolbar,
  .case-list-grid,
  .case-video-section,
  .detail-story,
  .academy-column {
    grid-template-columns: 1fr;
  }
  .case-video-section .case-video-tabs {
    grid-column: auto;
  }
  .academy-column-head {
    position: static;
  }
  .article-sidebar {
    position: static;
  }
  .filter-pills {
    justify-content: flex-start;
  }
  .case-list-head {
    display: block;
  }
  .case-controls {
    justify-items: start;
    min-width: 0;
    margin-top: 20px;
  }
  .qr-card {
    grid-template-columns: 140px 1fr;
  }
  .contact {
    padding: 86px 0;
  }
}
@media (max-width: 560px) {
  .qr-card,
  .method-grid {
    grid-template-columns: 1fr;
  }
  .qr-card img {
    max-width: 180px;
  }
  .article-content {
    padding: 24px;
  }
  .case-list-card img {
    height: 190px;
  }
  .academy-topic-list {
    grid-template-columns: 1fr;
  }
  .academy-topic {
    min-height: 0;
  }
}

/* ===== V7 official content refinements ===== */
.desktop-nav {
  gap: 18px;
}
.credential-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.document-card {
  border: 1px solid rgba(216, 180, 106, 0.22);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.04);
  padding: 18px;
  overflow: hidden;
}
.section-light .document-card,
.document-card.light {
  background: #fff;
  border-color: #eadfcd;
}
.document-card img {
  border-radius: 16px;
  max-height: 520px;
  object-fit: contain;
  background: #fff;
}
.document-card h3 {
  margin: 16px 0 6px;
  font-size: 22px;
}
.document-card p {
  margin: 0;
  color: #aeb8c6;
}
.section-light .document-card p {
  color: #667085;
}
.document-card a {
  color: var(--gold);
  word-break: break-all;
}
.document-card.compact img {
  max-width: 230px;
  margin: 0 auto 12px;
}
.qr-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin: 20px 0 24px;
}
.qr-img {
  max-width: 220px;
  width: 100%;
  margin: auto;
  border-radius: 18px;
  background: #fff;
  padding: 8px;
}
.warranty-panel {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.warranty-panel > div {
  border: 1px solid rgba(216, 180, 106, 0.25);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.05);
  padding: 22px;
  text-align: center;
}
.warranty-panel strong {
  display: block;
  margin-top: 12px;
  color: #fff;
  font-size: 20px;
}
.warranty-panel span {
  display: block;
  color: #aeb8c6;
}
.warranty-qr-card {
  align-self: start;
}
.warranty-result-card {
  grid-row: span 3;
  text-align: left;
  padding: 18px;
}
.warranty-result-card span {
  margin: 6px 0 14px;
  line-height: 1.7;
}
.warranty-result-img {
  display: block;
  width: 100%;
  max-height: 430px;
  object-fit: contain;
  border-radius: 18px;
  background: #eef2f5;
}
.business-card {
  margin-top: 34px;
  border: 1px solid rgba(216, 180, 106, 0.22);
  border-radius: 28px;
  background: #111821;
  padding: 28px;
  display: grid;
  grid-template-columns: 1fr 180px;
  gap: 24px;
  align-items: center;
}
.business-card h3 {
  margin: 0 0 8px;
  font-size: 28px;
}
.business-card p {
  color: #aeb8c6;
}
.business-card a {
  color: var(--gold);
}
.bottom-contact {
  display: none;
}
.contact {
  margin-top: 0;
}
.footer-grid {
  grid-template-columns: 1.1fr 0.7fr 0.7fr 0.8fr;
}
.footer-grid a[href="javascript:void(0)"] {
  cursor: default;
}
.news-card b {
  font-style: normal;
}
.method-card[href="javascript:void(0)"] {
  cursor: default;
}
.case-list-head p {
  max-width: 760px;
}
.article-sidebar .qr-img {
  max-width: 180px;
  margin-top: 14px;
}
@media (max-width: 980px) {
  .credential-gallery,
  .qr-row,
  .warranty-panel,
  .business-card {
    grid-template-columns: 1fr;
  }
  .warranty-result-card {
    grid-row: auto;
  }
  .warranty-result-img {
    max-height: 520px;
  }
  .business-card .qr-img {
    margin: 0;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .desktop-nav {
    gap: 14px;
  }
}
@media (max-width: 760px) {
  body {
    padding-bottom: 58px;
  }
  .bottom-contact {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 40;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid rgba(216, 180, 106, 0.28);
    background: rgba(7, 11, 16, 0.96);
    backdrop-filter: blur(12px);
  }
  .bottom-contact a {
    display: grid;
    place-items: center;
    height: 58px;
    color: var(--gold);
    font-weight: 800;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
  }
  .bottom-contact a:last-child {
    border-right: 0;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .document-card img {
    max-height: 420px;
  }
  .qr-img {
    max-width: 190px;
  }
}

/* ===== Professional polish: navigation, content modules, responsive stability ===== */
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 4px;
}

.desktop-nav a,
.mobile-panel a,
.footer-grid a,
.method-card,
.case-list-card,
.news-card {
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease, transform 0.2s ease,
    box-shadow 0.2s ease;
}

.desktop-nav a.is-active,
.mobile-panel a.is-active {
  color: var(--gold);
}

.desktop-nav a.is-active {
  position: relative;
}

.desktop-nav a.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -28px;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
}

.btn,
.nav-link,
.link-more,
.bottom-contact a {
  min-height: 44px;
}

.hero .image-frame img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.hero .image-frame {
  background:
    linear-gradient(135deg, rgba(216, 180, 106, 0.2), rgba(255, 255, 255, 0.035)),
    #101720;
}

/* Vietnamese homepage: local typography only, never affects the Chinese site. */
.vi-page {
  font-family: Arial, "Helvetica Neue", sans-serif;
}
.vi-page .hero-copy {
  max-width: 720px;
}
.vi-page .hero-copy h1 {
  letter-spacing: -0.035em;
}
.vi-page .hero-desc,
.vi-page .section-head > p,
.vi-page .about-grid > div > p,
.vi-page .contact-copy > p {
  line-height: 1.78;
}
.vi-page .proof-item span,
.vi-page .trust-item span,
.vi-page .product-card p,
.vi-page .product-card li,
.vi-page .service-card p,
.vi-page .partner-card p,
.vi-page .warranty-card span,
.vi-page .method-card span {
  line-height: 1.58;
}
.vi-page .partner-grid,
.vi-page .service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.vi-page .partner-card,
.vi-page .service-card {
  border: 1px solid rgba(216, 180, 106, 0.2);
  border-radius: 20px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.04);
}
.vi-page .section-light .partner-card,
.vi-page .section-light .service-card {
  background: #fff;
  border-color: rgba(18, 32, 48, 0.1);
}
.vi-page .partner-card h3,
.vi-page .service-card h3 {
  margin: 8px 0 10px;
}
.vi-page .service-card b {
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
@media (max-width: 980px) {
  .vi-page .partner-grid,
  .vi-page .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 560px) {
  .vi-page .hero-copy h1 {
    font-size: 34px;
    letter-spacing: -0.025em;
  }
  .vi-page .hero-desc {
    font-size: 14px;
    line-height: 1.7;
  }
  .vi-page .partner-grid,
  .vi-page .service-grid {
    grid-template-columns: 1fr;
  }
  .vi-page .partner-card,
  .vi-page .service-card {
    padding: 20px;
  }
}

.sticky-side {
  position: sticky;
  top: 100px;
  align-self: start;
  border: 1px solid rgba(216, 180, 106, 0.2);
  border-radius: 22px;
  padding: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.025)),
    #0e151e;
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.22);
}

.sticky-side h2 {
  margin: 0 0 14px;
  font-size: 26px;
  color: #fff;
}

.sticky-side a {
  display: flex;
  align-items: center;
  min-height: 42px;
  padding: 10px 12px;
  border-radius: 12px;
  color: #aeb8c6;
  border: 1px solid transparent;
}

.sticky-side a:hover {
  color: var(--gold);
  border-color: rgba(216, 180, 106, 0.18);
  background: rgba(255, 255, 255, 0.045);
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.value-grid > div {
  min-height: 170px;
  padding: 22px;
  border: 1px solid rgba(216, 180, 106, 0.18);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.045);
}

.section-light .value-grid > div {
  background: #fff;
  border-color: #eadfcd;
  box-shadow: 0 20px 50px rgba(64, 50, 24, 0.08);
}

.value-grid strong {
  display: block;
  margin-bottom: 10px;
  color: var(--gold);
  font-size: 20px;
}

.section-light .value-grid strong {
  color: #8c6f3b;
}

.value-grid span {
  display: block;
  color: #aeb8c6;
}

.section-light .value-grid span {
  color: #667085;
}

.case-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.case-tabs button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 8px 13px;
  border: 1px solid rgba(216, 180, 106, 0.24);
  border-radius: 999px;
  color: #cbd4e1;
  background: rgba(255, 255, 255, 0.045);
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
}

.case-tabs button:hover,
.case-tabs button.is-active {
  color: #111821;
  background: var(--gold);
  border-color: var(--gold);
}

.rich-block {
  overflow-x: auto;
}

.rich-block > img {
  margin: 20px 0 24px;
  max-height: 340px;
  object-fit: cover;
  border: 1px solid rgba(216, 180, 106, 0.18);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.04);
}

.rich-block .table {
  min-width: 680px;
}

@media (max-width: 760px) {
  .quick-consult-head,
  .quick-consult-grid,
  .quick-consult-fields {
    grid-template-columns: 1fr;
  }
  .quick-consult-head {
    gap: 14px;
  }
  .quick-consult-actions .btn {
    width: 100%;
  }
  .product-delivery-showcase {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .product-delivery-media {
    min-height: 280px;
  }
  .product-delivery-points {
    grid-template-columns: 1fr;
  }
  .product-feature-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .product-feature-card {
    display: grid;
    grid-template-columns: 44% 1fr;
  }
  .product-feature-card img {
    aspect-ratio: auto;
    height: 100%;
  }
  .product-feature-card figcaption {
    align-self: center;
    padding: 16px;
  }
  .production-overview,
  .production-video { grid-template-columns: 1fr; }
  .production-gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .production-overview-media img,
  .production-overview-media img:last-child { height: 170px; }
}

.contact-methods .method-card:hover,
.footer-grid a:hover {
  color: var(--gold);
}

.wechat-float {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 80;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}

.wechat-float-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border: 1px solid rgba(216, 180, 106, 0.58);
  border-radius: 50%;
  background:
    radial-gradient(circle at 34% 24%, rgba(255, 255, 255, 0.16), transparent 30%),
    linear-gradient(145deg, #1f2b37 0%, #101821 58%, #070b10 100%);
  color: var(--gold);
  box-shadow:
    0 18px 45px rgba(17, 24, 33, 0.28),
    inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.wechat-float-btn:hover {
  transform: translateY(-2px);
  border-color: var(--gold);
  box-shadow:
    0 22px 52px rgba(17, 24, 33, 0.34),
    0 0 0 5px rgba(216, 180, 106, 0.12),
    inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.wechat-float-btn svg {
  width: 42px;
  height: 42px;
}

.wechat-car-line,
.wechat-shield,
.wechat-shield-mark {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.wechat-car-line {
  stroke-width: 2.3;
  opacity: 0.95;
}

.wechat-shield {
  fill: rgba(216, 180, 106, 0.12);
  stroke-width: 2.1;
}

.wechat-shield-mark {
  stroke-width: 2.3;
}

.wechat-float-btn i {
  position: absolute;
  right: 6px;
  bottom: 8px;
  width: 16px;
  height: 16px;
  border: 3px solid #fff;
  border-radius: 50%;
  background: #08c160;
  box-shadow: 0 6px 14px rgba(8, 193, 96, 0.35);
}

.wechat-float-btn::after {
  position: absolute;
  right: 70px;
  top: 50%;
  content: attr(aria-label);
  transform: translateY(-50%);
  white-space: nowrap;
  border: 1px solid rgba(216, 180, 106, 0.28);
  border-radius: 999px;
  background: rgba(17, 24, 33, 0.92);
  color: var(--gold);
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 900;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.wechat-float-btn:hover::after {
  opacity: 1;
  transform: translateY(-50%) translateX(-4px);
}

.wechat-float-panel {
  position: relative;
  width: min(300px, calc(100vw - 32px));
  border: 1px solid rgba(216, 180, 106, 0.28);
  border-radius: 18px;
  background: #fff;
  padding: 18px;
  color: #111821;
  box-shadow: 0 24px 70px rgba(17, 24, 33, 0.22);
}

.wechat-float-panel[hidden],
.wechat-toast[hidden] {
  display: none;
}

.wechat-float-panel strong {
  display: block;
  margin-bottom: 6px;
  font-size: 20px;
}

.wechat-float-panel p {
  margin: 0 28px 12px 0;
  color: #596575;
  font-size: 14px;
  line-height: 1.65;
}

.wechat-float-panel img {
  display: block;
  width: 150px;
  height: 150px;
  margin: 0 auto 12px;
  border: 1px solid #eadfcd;
  border-radius: 14px;
  object-fit: cover;
  background: #f7f2e8;
}

.wechat-float-close {
  position: absolute;
  top: 12px;
  right: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1px solid #eadfcd;
  border-radius: 50%;
  background: #fff;
  color: #596575;
  font-size: 18px;
  cursor: pointer;
}

.wechat-id {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
  margin-bottom: 10px;
}

.wechat-id span {
  min-width: 0;
  border: 1px solid #eadfcd;
  border-radius: 10px;
  background: #f8f5ee;
  padding: 10px 11px;
  color: #111821;
  font-weight: 900;
  word-break: break-all;
}

.wechat-id button,
.wechat-open {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border: 0;
  border-radius: 10px;
  background: #111821;
  color: var(--gold);
  padding: 0 13px;
  font-size: 13px;
  font-weight: 900;
  text-decoration: none;
  cursor: pointer;
}

.wechat-open {
  width: 100%;
  margin-bottom: 10px;
  background: #08c160;
  color: #fff;
}

.wechat-float-panel small {
  display: block;
  color: #7b8492;
  font-size: 12px;
  line-height: 1.55;
}

.wechat-toast {
  align-self: flex-end;
  border-radius: 999px;
  background: #111821;
  color: #fff;
  padding: 9px 14px;
  font-size: 13px;
  font-weight: 800;
  box-shadow: 0 14px 34px rgba(17, 24, 33, 0.2);
}

@media (max-width: 980px) {
  .sticky-side {
    position: static;
  }

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

  .case-tabs {
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  .section-title h2,
  .section-head h2 {
    font-size: 34px;
  }

  .hero-copy h1 {
    font-size: 40px;
  }

  .page-hero h1 {
    font-size: 42px;
  }

  .contact-copy h2,
  .case-toolbar h2 {
    font-size: 34px;
  }

  .article-feature-card h2 {
    font-size: 30px;
  }

  .value-grid {
    grid-template-columns: 1fr;
  }

  .value-grid > div {
    min-height: 0;
  }

  .desktop-nav a.is-active::after {
    display: none;
  }

  .wechat-float {
    right: 14px;
    bottom: 14px;
  }

  .wechat-float-btn {
    width: 56px;
    height: 56px;
  }

  .wechat-float-btn svg {
    width: 36px;
    height: 36px;
  }

  .wechat-float-btn i {
    width: 14px;
    height: 14px;
    right: 5px;
    bottom: 7px;
  }

  .wechat-float-btn::after {
    display: none;
  }
}

/* Partner location photography */
.partner-locations-section {
  background: #f7f0e4;
}
.partner-locations-head {
  max-width: 820px;
}
.partner-location-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.55fr);
  gap: 0;
  margin-top: 36px;
  overflow: hidden;
  border: 1px solid #eadfcd;
  border-radius: 30px;
  background: #111821;
  box-shadow: 0 28px 70px rgba(64, 50, 24, 0.14);
}
.partner-location-feature > a {
  display: block;
  min-height: 440px;
  overflow: hidden;
}
.partner-location-feature img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}
.partner-location-feature a:hover img,
.partner-location-card a:hover img {
  transform: scale(1.025);
}
.partner-location-copy {
  align-self: center;
  padding: clamp(30px, 4vw, 58px);
  color: #d8dee8;
}
.partner-location-copy span,
.partner-location-card-body span {
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
}
.partner-location-copy h3 {
  margin: 12px 0 16px;
  color: #fff;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.16;
}
.partner-location-copy p {
  margin: 0;
  color: #aeb8c6;
}
.partner-location-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 24px;
}
.partner-location-card {
  overflow: hidden;
  border: 1px solid #eadfcd;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 18px 44px rgba(64, 50, 24, 0.08);
}
.partner-location-media {
  display: block;
  overflow: hidden;
}
.partner-location-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.partner-location-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 3px;
  background: #eadfcd;
}
.partner-location-pair .partner-location-media img {
  aspect-ratio: 2 / 3;
}
.partner-location-card-body {
  padding: 22px;
}
.partner-location-card-body h3 {
  margin: 8px 0 10px;
  color: #111821;
  font-size: 21px;
  line-height: 1.32;
}
.partner-location-card-body p {
  margin: 0;
  color: #677282;
  font-size: 14px;
}
.home-partner-network {
  overflow: hidden;
}
.home-partner-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr);
  gap: 52px;
  align-items: center;
}
.home-partner-copy h2 {
  margin: 10px 0 18px;
  max-width: 620px;
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1.12;
}
.home-partner-copy > p:not(.eyebrow) {
  max-width: 600px;
  color: #aeb8c6;
}
.home-partner-mosaic {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  grid-template-rows: repeat(3, 150px);
  gap: 12px;
}
.home-partner-shot {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid rgba(216, 180, 106, 0.22);
  border-radius: 20px;
}
.home-partner-shot-main {
  grid-row: 1 / 4;
}
.home-partner-shot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}
.home-partner-shot::after {
  content: '';
  position: absolute;
  inset: 45% 0 0;
  background: linear-gradient(transparent, rgba(7, 11, 16, 0.86));
  pointer-events: none;
}
.home-partner-shot span {
  position: absolute;
  z-index: 1;
  left: 16px;
  right: 16px;
  bottom: 14px;
  color: #fff;
  font-size: 14px;
  font-weight: 800;
}
.home-partner-shot:hover {
  border-color: rgba(216, 180, 106, 0.8);
}
.home-partner-shot:hover img {
  transform: scale(1.035);
}

@media (max-width: 980px) {
  .partner-location-feature {
    grid-template-columns: 1fr;
  }
  .partner-location-feature > a {
    min-height: 0;
  }
  .partner-location-feature > a img {
    aspect-ratio: 16 / 10;
  }
  .partner-location-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .home-partner-layout {
    grid-template-columns: 1fr;
  }
  .home-partner-mosaic {
    grid-template-rows: repeat(3, 140px);
  }
}

@media (max-width: 640px) {
  .partner-location-grid {
    grid-template-columns: 1fr;
  }
  .partner-location-feature {
    border-radius: 22px;
  }
  .partner-location-feature > a img {
    aspect-ratio: 4 / 3;
  }
  .partner-location-copy {
    padding: 26px 22px 30px;
  }
  .partner-location-card {
    border-radius: 20px;
  }
  .partner-location-pair {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .partner-location-pair .partner-location-media img {
    aspect-ratio: 3 / 4;
  }
  .home-partner-mosaic {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 240px 150px 150px;
  }
  .home-partner-shot-main {
    grid-column: 1 / 3;
    grid-row: 1;
  }
  .home-partner-shot:last-child {
    grid-column: 1 / 3;
  }
}

/* ===== Full-site mobile experience: <= 760px only ===== */
@media (max-width: 760px) {
  body {
    padding-bottom: calc(63px + env(safe-area-inset-bottom));
  }

  .container {
    width: min(var(--max), calc(100% - 32px));
  }

  .section {
    padding: 52px 0;
  }

  .page-hero {
    padding: 52px 0 44px;
  }

  .page-hero h1 {
    font-size: 38px;
    line-height: 1.1;
  }

  .page-hero p,
  .rich-block p,
  .rich-block li,
  .article-content p,
  .article-content li {
    font-size: 15px;
    line-height: 1.78;
  }

  .section-title h2,
  .section-head h2,
  .contact-copy h2,
  .case-toolbar h2 {
    font-size: 32px;
    line-height: 1.16;
  }

  .nav-wrap {
    min-height: 64px;
  }

  .menu-btn {
    width: 44px;
    height: 44px;
  }

  .mobile-panel a {
    display: flex;
    align-items: center;
    min-height: 48px;
    padding: 11px 0;
  }

  .hero {
    padding: 44px 0 24px;
  }

  .hero-copy h1 {
    font-size: 38px;
    line-height: 1.1;
  }

  .hero-actions {
    margin: 24px 0;
  }

  .proof-item {
    padding: 13px 12px;
  }

  .rich-panel {
    gap: 16px;
  }

  .rich-block {
    padding: 20px;
    border-radius: 20px;
    -webkit-overflow-scrolling: touch;
  }

  .rich-block h2 {
    font-size: 28px;
    line-height: 1.2;
  }

  .rich-block .table {
    min-width: 680px;
  }

  .product-feature-card {
    display: block;
  }

  .product-feature-card img {
    width: 100%;
    aspect-ratio: 16 / 10;
    height: auto;
    object-fit: cover;
  }

  .product-feature-card figcaption {
    padding: 17px 18px 19px;
  }

  .product-delivery-media {
    min-height: 0;
  }

  .product-delivery-media img {
    aspect-ratio: 16 / 10;
    height: auto;
  }

  .case-list-card img {
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
  }

  .case-list-card div,
  .partner-location-card-body {
    padding: 18px;
  }

  .case-tabs {
    flex-wrap: nowrap;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
  }

  .case-tabs button {
    flex: 0 0 auto;
    min-height: 44px;
  }

  .production-overview,
  .production-video,
  .production-overview-media,
  .production-gallery {
    grid-template-columns: 1fr;
  }

  .production-overview-media img,
  .production-overview-media img:last-child,
  .production-gallery img {
    height: auto;
    min-height: 0;
    aspect-ratio: 16 / 10;
    object-fit: cover;
  }

  .production-video video {
    width: 100%;
    height: auto;
  }

  .contact {
    padding: 58px 0;
  }

  .contact-panel,
  .contact-methods,
  .qr-card,
  .method-grid,
  .warranty-panel,
  .qr-row,
  .business-card {
    grid-template-columns: 1fr;
  }

  .article-content {
    padding: 22px 20px;
  }

  .article-content h2,
  .article-feature-card h2 {
    font-size: 28px;
    line-height: 1.24;
  }

  .bottom-contact {
    min-height: 62px;
    padding-bottom: env(safe-area-inset-bottom);
  }

  .bottom-contact a {
    height: 62px;
    min-height: 62px;
  }

  .wechat-float {
    right: 14px;
    bottom: calc(73px + env(safe-area-inset-bottom));
  }

  .wechat-float-btn {
    width: 52px;
    height: 52px;
  }

  .wechat-float-btn svg {
    width: 33px;
    height: 33px;
  }
}

@media (max-width: 560px) {
  .page-hero h1 {
    font-size: 36px;
  }

  .hero-copy h1 {
    font-size: 35px;
  }

  .vi-page .hero-copy h1 {
    font-size: 33px;
  }

  .section-title h2,
  .section-head h2,
  .contact-copy h2,
  .case-toolbar h2 {
    font-size: 30px;
  }

  .rich-block h2,
  .article-content h2,
  .article-feature-card h2 {
    font-size: 26px;
  }

  .hero-actions .btn,
  .section-actions .btn,
  .quick-consult-actions .btn {
    width: 100%;
  }

  .partner-location-copy {
    padding: 22px 18px 24px;
  }
}

/* ===== Warranty gateway: new mini-program and original records ===== */
.warranty-entry-notice {
  margin: 18px 0 0;
  border-left: 3px solid var(--gold);
  border-radius: 0 12px 12px 0;
  background: rgba(216, 180, 106, 0.08);
  padding: 13px 16px;
}

.warranty-entry-notice strong {
  color: #f1d28e;
}

.warranty-entry-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin: 24px 0 18px;
}

.warranty-entry-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: stretch;
  border: 1px solid rgba(216, 180, 106, 0.24);
  border-radius: 22px;
  background: #0d141c;
  padding: 22px;
}

.warranty-entry-card.is-new {
  border-color: rgba(216, 180, 106, 0.72);
  box-shadow: inset 0 0 0 1px rgba(216, 180, 106, 0.12);
}

.warranty-entry-badge {
  align-self: flex-start;
  border-radius: 999px;
  background: var(--gold);
  color: #111821;
  padding: 6px 11px;
  font-size: 12px;
  font-weight: 900;
}

.warranty-entry-card img {
  width: min(230px, 100%);
  aspect-ratio: 1;
  margin: 18px auto;
  border-radius: 16px;
  background: #fff;
  padding: 8px;
  object-fit: contain;
}

.warranty-entry-card h3 {
  margin: 0 0 8px;
  color: #fff;
  font-size: 23px;
}

.warranty-entry-card p {
  margin: 0;
}

.warranty-entry-url {
  display: block;
  margin: 12px 0 16px;
  color: var(--gold);
  font-size: 14px;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.warranty-entry-card .btn {
  width: 100%;
  min-height: 44px;
  margin-top: auto;
}

.warranty-help-card {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.035);
  padding: 18px;
}

.warranty-help-card h3 {
  margin: 0 0 7px;
}

.warranty-help-card p {
  margin: 0;
}

@media (max-width: 760px) {
  .warranty-entry-grid {
    grid-template-columns: 1fr;
  }

  .warranty-entry-card {
    padding: 18px;
  }

  .warranty-entry-card img {
    width: min(220px, 100%);
  }
}