:root {
  --bg: rgb(255, 255, 255);
  --bg-alt: rgb(240, 247, 251);
  --bg-panel: rgba(255, 255, 255, 0.5);
  --text: rgb(18, 34, 46);
  --text-muted: rgb(91, 107, 120);
  --primary: rgb(25, 127, 167);
  --primary-dark: rgb(13, 118, 160);
  --primary-soft: rgb(223, 243, 255);
  --accent: rgb(13, 118, 160);
  --accent-soft: rgb(255, 229, 212);
  --border: rgb(220, 236, 244);
  --shadow: 0 6px 24px rgba(0, 105, 148, 0.12);
  --header-bg: rgba(255, 255, 255, 0.92);
  --video-overlay: rgba(255, 255, 255, 0.35);
  --table-stripe: rgb(242, 250, 253);
  --grad-metallic: linear-gradient(135deg, rgb(184, 194, 204), rgb(232, 238, 242) 45%, rgb(125, 138, 150) 70%, rgb(212, 221, 227));
  --stripe-sky: rgb(223, 243, 255);
  --stripe-white: rgb(255, 255, 255);
  --lightbox-overlay: rgba(0, 0, 0, 0.88);
}

[data-theme="dark"] {
  --bg: rgb(10, 10, 10);
  --bg-alt: rgb(20, 18, 16);
  --bg-panel: rgba(0, 0, 0, 0.5);
  --text: rgb(236, 229, 218);
  --text-muted: rgb(168, 159, 144);
  --primary: rgb(255, 105, 25);
  --primary-dark: rgb(255, 100, 16);
  --primary-soft: rgb(42, 26, 16);
  --accent: rgb(255, 105, 25);
  --accent-soft: rgb(42, 22, 8);
  --border: rgb(43, 38, 32);
  --shadow: 0 6px 24px rgba(0, 0, 0, 0.5);
  --header-bg: rgba(10, 10, 10, 0.92);
  --video-overlay: rgba(0, 0, 0, 0.55);
  --table-stripe: rgb(23, 19, 16);
  --grad-metallic: rgba(230, 230, 230, 1);
  --stripe-sky: rgb(20, 18, 16);
  --stripe-white: rgb(10, 10, 10);
  --lightbox-overlay: rgba(0, 0, 0, 0.92);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
  transition: background 0.3s ease, color 0.3s ease;
}

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

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  color: var(--primary-dark);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: 70px 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
}

[data-theme="dark"] .section-title {
  background: var(--grad-metallic);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 40px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.highlight {
  color: var(--accent);
  font-weight: 700;
}

.page-hero {
  padding: 120px 0 70px;
  background: linear-gradient(180deg, var(--primary-soft), var(--bg-alt));
  text-align: center;
}

[data-theme="dark"] .page-hero {
  background: linear-gradient(180deg, var(--primary-soft), var(--bg-alt));
}

.page-hero h1 {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 12px;
}

[data-theme="dark"] .page-hero h1 {
  background: var(--grad-metallic);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.page-hero p {
  color: var(--text-muted);
  max-width: 760px;
  margin: 0 auto;
}

.skip-nav {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--primary);
  color: rgb(255, 255, 255);
  padding: 8px 16px;
  z-index: 2000;
}

.skip-nav:focus {
  left: 0;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--header-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s ease;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.navbar .brand {
  display: flex;
  align-items: center;
}

.navbar .brand img {
  height: 44px;
  width: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 4px;
}

.nav-item {
  position: relative;
}

.nav-link {
  position: relative;
  display: block;
  padding: 26px 16px;
  color: var(--text);
  font-weight: 600;
  font-size: 0.98rem;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 16px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.28s ease;
}

.nav-link:hover::after,
.nav-item:hover .nav-link::after {
  transform: scaleX(1);
}

.nav-link:hover {
  color: var(--primary);
}

.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  list-style: none;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
}

.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown a {
  display: block;
  padding: 10px 20px;
  color: var(--text);
  font-size: 0.92rem;
}

.dropdown a:hover {
  background: var(--primary-soft);
  color: var(--primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-select {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
}

.lang-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 160px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  list-style: none;
  padding: 6px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s;
}

.lang-select.open .lang-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-menu button {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 16px;
  background: transparent;
  border: none;
  color: var(--text);
  cursor: pointer;
  font-size: 0.92rem;
  text-align: left;
}

.lang-menu button:hover,
.lang-menu button.active {
  background: var(--primary-soft);
  color: var(--primary);
}

.theme-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  height: 40px;
  padding: 0 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  white-space: nowrap;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-toggle {
  display: none;
  position: relative;
  background: transparent;
  border: 1px solid var(--border);
  width: 42px;
  height: 42px;
  border-radius: 8px;
  cursor: pointer;
}

.nav-toggle::before,
.nav-toggle::after {
  content: "";
}

.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after {
  position: absolute;
  left: 50%;
  width: 18px;
  height: 2px;
  background: var(--text);
  transform: translateX(-50%);
}

.nav-toggle::before {
  top: 13px;
}

.nav-toggle span {
  top: 20px;
}

.nav-toggle::after {
  top: 27px;
}

.hero {
  position: relative;
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.hero-video-wrap {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 90%;
}

.hero-video-wrap video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-panel {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 24px 0;
  background: var(--bg-panel);
  backdrop-filter: blur(6px);
  border-top: 1px solid var(--border);
  text-align: left;
}

.hero-panel h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 18px;
  line-height: 1.3;
}

[data-theme="dark"] .hero-panel h1 {
  background: var(--grad-metallic);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.hero-panel p {
  font-size: 1.5rem;
  color: var(--text);
  line-height: 1.8;
}

.hero-scroll {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: rgb(255, 255, 255);
  text-align: center;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% {
    transform: translate(-50%, 0);
  }
  50% {
    transform: translate(-50%, 10px);
  }
}

.grid {
  display: grid;
  gap: 28px;
}

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

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

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

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  transform: translateY(-6px);
}

.case-card {
  display: block;
  color: inherit;
  text-decoration: none;
}

.case-name {
  padding: 14px 12px;
  text-align: center;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.5;
}

.card-img {
  position: relative;
  width: 100%;
  height: 240px;
  overflow: hidden;
  background: var(--bg-alt);
}

.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease, opacity 0.3s ease;
}

.card-img-hover {
  position: absolute;
  inset: 0;
  opacity: 0;
}

.card:hover .card-img img {
  transform: scale(1.25);
}

.case-card:hover .card-img-default {
  opacity: 0;
}

.case-card:hover .card-img-hover {
  opacity: 1;
  transform: scale(1.25);
}

.card-body {
  padding: 22px;
}

.card-body h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.card-body p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 10px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}

.tag {
  display: inline-block;
  background: var(--primary-soft);
  color: var(--primary-dark);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 500;
}

[data-theme="dark"] .tag {
  color: var(--primary-dark);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: background 0.25s ease, transform 0.2s ease;
}

.btn-primary {
  background: var(--primary);
  color: rgb(255, 255, 255);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: rgb(255, 255, 255);
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--accent);
  color: rgb(255, 255, 255);
}

.btn-accent:hover {
  background: var(--primary-dark);
  color: rgb(255, 255, 255);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: rgb(255, 255, 255);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

th,
td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  background: var(--primary-soft);
  color: var(--text);
  font-weight: 700;
  white-space: nowrap;
}

tr:nth-child(even) td {
  background: var(--table-stripe);
}

tr:last-child td {
  border-bottom: none;
}

.service-block {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  padding: 44px 36px;
  margin-bottom: 30px;
}

.service-block .service-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.service-block::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--video-overlay);
  z-index: 1;
}

.service-content {
  position: relative;
  z-index: 2;
  background: var(--bg-panel);
  padding: 30px;
  border-radius: 12px;
  backdrop-filter: blur(4px);
}

.service-content h2 {
  font-size: 1.6rem;
  margin-bottom: 14px;
}

.service-content ul {
  list-style: none;
  padding-left: 0;
}

.service-content li {
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
}

.service-content li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.cert-item {
  text-align: center;
}

.cert-item img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: transform 0.25s ease;
}

.cert-item img:hover {
  transform: scale(1.03);
}

.cert-item .cert-name {
  margin-top: 10px;
  font-size: 1rem;
  font-weight: 700;
  background: var(--grad-metallic);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.report-block {
  text-align: center;
  margin-bottom: 40px;
}

.report-block img {
  max-width: 520px;
  margin: 0 auto 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  cursor: pointer;
}

.report-block .report-name {
  font-size: 1.15rem;
  font-weight: 700;
  background: var(--grad-metallic);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.lightbox {
  position: fixed;
  inset: 0;
  background: var(--lightbox-overlay);
  z-index: 3000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 30px;
}

.lightbox.show {
  display: flex;
}

.lightbox img {
  max-width: 92vw;
  max-height: 92vh;
  border-radius: 8px;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 28px;
  background: transparent;
  border: none;
  color: rgb(255, 255, 255);
  font-size: 2.2rem;
  cursor: pointer;
}

.map-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.map-box {
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

.map-box iframe {
  width: 100%;
  height: 340px;
  border: none;
  display: block;
}

.map-box .map-info {
  padding: 16px 18px;
}

.map-box .map-info h3 {
  margin-bottom: 6px;
  font-size: 1.15rem;
}

.map-box .map-info p {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.map-link {
  display: inline-block;
  margin-top: 10px;
  font-weight: 600;
}

.contact-list {
  list-style: none;
  padding: 0;
}

.contact-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.contact-list li:last-child {
  border-bottom: none;
}

.contact-list .label {
  font-weight: 700;
  min-width: 100px;
  color: var(--text-muted);
}

.contact-list .value {
  word-break: break-word;
}

.partner-marquee {
  overflow: hidden;
  width: 100%;
  position: relative;
}

.partner-marquee-track {
  display: flex;
  gap: 18px;
  width: max-content;
  animation: partner-scroll 30s linear infinite;
}

.partner-marquee-track:hover {
  animation-play-state: paused;
}

@keyframes partner-scroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

.partner-item {
  flex-shrink: 0;
  padding: 18px 28px;
  border: 1px solid var(--border);
  border-radius: 12px;
  text-align: center;
  font-weight: 600;
  background: var(--bg-alt);
  white-space: nowrap;
}

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent);
  color: rgb(255, 255, 255);
  border: none;
  cursor: pointer;
  font-size: 1.4rem;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
  z-index: 1500;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--primary-dark);
}

.site-footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 50px 0 30px;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.footer-col h4 {
  margin-bottom: 16px;
  font-size: 1.1rem;
}

.footer-col p {
  color: var(--text-muted);
  font-size: 0.94rem;
  margin-bottom: 8px;
}

.footer-col a {
  color: var(--text-muted);
  word-break: break-all;
}

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

.footer-bottom {
  text-align: center;
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.86rem;
}

.footer-filing {
  color: inherit;
}

.footer-filing:hover {
  color: var(--primary);
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.table-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 26px 0 12px;
}

[data-theme="dark"] .table-title {
  background: var(--grad-metallic);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.detail-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 34px;
  align-items: start;
}

.gallery-main {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.gallery-main img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 12px;
}

.gallery-thumbs img {
  width: 100%;
  height: 80px;
  object-fit: cover;
  border-radius: 8px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border 0.2s ease;
}

.gallery-thumbs img.active {
  border-color: var(--accent);
}

.spec-list {
  list-style: none;
  padding: 0;
}

.spec-list li {
  display: flex;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.spec-list li:last-child {
  border-bottom: none;
}

.spec-list .spec-label {
  font-weight: 700;
  min-width: 110px;
  color: var(--text-muted);
}

.qc-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-top: 24px;
}

.qc-step {
  background: var(--primary-soft);
  color: var(--primary-dark);
  padding: 12px 22px;
  border-radius: 30px;
  font-weight: 600;
}

.history-list {
  list-style: none;
  padding: 0;
  max-width: 640px;
  margin: 0 auto;
}

.history-list li {
  display: flex;
  gap: 16px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.history-year {
  color: var(--accent);
  font-weight: 800;
  min-width: 60px;
}

.block-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 16px;
}

[data-theme="dark"] .block-title {
  background: var(--grad-metallic);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.home-about {
  background: var(--stripe-white);
}

.home-products {
  background: var(--stripe-sky);
}

.home-partners {
  background: var(--stripe-white);
}

.home-certs {
  background: var(--stripe-sky);
}

.home-contact {
  background: var(--stripe-white);
}

.home-about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
  align-items: center;
}

.about-intro-img {
  width: 100%;
  max-width: 720px;
  border-radius: 16px;
  margin: 30px auto;
}

.home-about-media {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.home-about-media img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.home-kicker {
  display: inline-block;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.home-about-body h2 {
  text-align: left;
}

.home-about-body p {
  color: var(--text-muted);
  margin-bottom: 24px;
}

.home-cta {
  text-align: center;
  margin-top: 34px;
}

.home-contact-inner {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.home-contact-inner h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 14px;
}

[data-theme="dark"] .home-contact-inner h2 {
  background: var(--grad-metallic);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.home-contact-inner p {
  color: var(--text-muted);
  margin-bottom: 26px;
}

.standards-flow {
  max-width: 980px;
  margin: 40px auto 0;
}

.flow-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 34px;
  align-items: center;
  margin-bottom: 38px;
}

.flow-item.reverse .flow-text {
  order: 2;
}

.flow-item.reverse .flow-img {
  order: 1;
}

.flow-text h3 {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 12px;
}

[data-theme="dark"] .flow-text h3 {
  background: var(--grad-metallic);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.flow-text p {
  font-size: 1.05rem;
  line-height: 1.85;
}

.flow-text ul {
  list-style: none;
  padding-left: 0;
}

.flow-text li {
  position: relative;
  font-size: 1.05rem;
  line-height: 1.85;
  padding-left: 20px;
  margin-bottom: 10px;
}

.flow-text li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.flow-img img {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform 0.25s ease;
}

.flow-img img:hover {
  transform: scale(1.02);
}

.flow-banner {
  text-align: center;
  background: var(--primary-soft);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 26px 22px;
  margin: 44px 0;
}

.flow-banner h3 {
  font-size: 1.45rem;
  font-weight: 800;
  margin-bottom: 8px;
}

[data-theme="dark"] .flow-banner h3 {
  background: var(--grad-metallic);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.flow-banner p {
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 1.05rem;
}

.forge-tables {
  max-width: 980px;
  margin: 36px auto 0;
}

.forge-tables .table-wrap {
  margin-bottom: 34px;
}

.table-note {
  margin-top: 4px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.services-extra {
  align-items: center;
}

.services-extra-title {
  text-align: left;
}

.services-extra-img {
  border-radius: 16px;
}

.contact-trade-title {
  margin-top: 40px;
}

@media (max-width: 992px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  section {
    padding: 50px 0;
  }

  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .nav-menu {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--bg);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 10px 20px 20px;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }

  .nav-menu.mobile-open {
    max-height: 80vh;
    overflow-y: auto;
  }

  .nav-link {
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
  }

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

  .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    border: none;
    box-shadow: none;
    border-radius: 0;
    padding: 0 0 6px 12px;
    display: block;
  }

  .dropdown a {
    padding: 9px 0;
  }

  .grid-2,
  .grid-3,
  .grid-4,
  .map-grid,
  .footer-grid,
  .cert-grid {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    padding: 30px 0;
  }

  .home-about-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .home-about-media img {
    height: 260px;
  }

  .hero-panel h1 {
    font-size: 2.4rem;
  }

  .page-hero h1 {
    font-size: 1.8rem;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .card-img {
    height: 200px;
  }

  .detail-hero {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .gallery-main img {
    height: 240px;
  }

  .gallery-thumbs {
    gap: 8px;
  }

  .gallery-thumbs img {
    height: 62px;
  }

  .about-intro-img {
    max-width: 100%;
    margin: 22px auto;
  }

  .report-block img {
    max-width: 100%;
  }

  .flow-item {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .flow-item.reverse .flow-text {
    order: 1;
  }

  .flow-item.reverse .flow-img {
    order: 2;
  }

  .flow-banner {
    margin: 32px 0;
  }
}