/* ============================================================
   LumiLine – LED Linear Lighting Manufacturer
   Main Stylesheet (Bright Theme)
   ============================================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  --color-primary: #F08301;
  --color-primary-dark: #D66E00;
  --color-primary-light: #FF9B1A;
  --color-bg: #0F0F0F;
  --color-bg-alt: #1A1A1A;
  --color-bg-alt-2: #252525;
  --color-text: #FFFFFF;
  --color-text-muted: #CCCCCC;
  --color-text-light: #999999;
  --color-border: #333333;
  --color-border-light: #222222;
  --font-body: 'Inter', sans-serif;
  --font-heading: 'Barlow Condensed', sans-serif;
  --header-height: 72px;
  --transition: 0.3s ease;
  --radius: 8px;
  --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
  --bg-url: './../images/banner-home.jpg';
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* ---------- Container ---------- */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 32px;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  border-radius: var(--radius);
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: #FFFFFF;
  border: 2px solid var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 140, 0, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 9px 20px;
  font-size: 0.8rem;
}

.btn-full {
  width: 100%;
}

/* ---------- Section Commons ---------- */
.section {
  padding: 96px 0;
}

.section-eyebrow {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--color-primary);
  margin-bottom: 12px;
  text-transform: uppercase;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 64px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--color-text);
  line-height: 1.15;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.section-desc {
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.8;
}

/* ============================================================
   HEADER
   ============================================================ */

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(13, 13, 13, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition);
}

.site-header.scrolled {
  background: rgba(13, 13, 13, 0.98);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
}

.header-inner {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 40px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  color: var(--color-primary);
  font-size: 1.4rem;
  line-height: 1;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: 2px;
  color: var(--color-text);
  text-transform: uppercase;
}

.logo-text strong {
  color: var(--color-primary);
  font-weight: 800;
}

.logo--light .logo-text {
  color: var(--color-text);
}

/* Nav */
.main-nav {
  flex: 1;
}

.main-nav>ul {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav>ul>li {
  position: relative;
}

.main-nav>ul>li>a {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: var(--color-text);
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: all var(--transition);
}

.main-nav>ul>li>a:hover,
.main-nav>ul>li>a.active {
  color: var(--color-primary);
  background: rgba(255, 140, 0, 0.08);
}

.main-nav .arrow {
  font-size: 0.6rem;
}

/* Dropdown */
.dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  min-width: 180px;
  padding: 8px 0;
  box-shadow: var(--shadow-lg);
  z-index: 1001;
}

.has-dropdown:hover .dropdown {
  display: block;
}

.has-dropdown:hover>a::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: 8px;
}

.dropdown li a {
  display: block;
  padding: 10px 20px;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  letter-spacing: 1px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  transition: all var(--transition);
}

.dropdown li a:hover {
  color: var(--color-primary);
  background: rgba(255, 140, 0, 0.06);
  padding-left: 28px;
}

.nav-cta {
  margin-left: auto;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all var(--transition);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    url(--bg-url) center/cover no-repeat;
  transform: scale(1.05);
  animation: heroZoom 20s ease-in-out infinite alternate;
}

@keyframes heroZoom {
  from {
    transform: scale(1.05);
  }

  to {
    transform: scale(1.12);
  }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg,
      rgba(13, 13, 13, 0.92) 0%,
      rgba(13, 13, 13, 0.75) 50%,
      rgba(13, 13, 13, 0.88) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: calc(var(--header-height) + 60px);
  padding-bottom: 60px;
  max-width: 760px;
}

.hero-eyebrow {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--color-primary);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-eyebrow::before {
  content: '';
  display: block;
  width: 40px;
  height: 2px;
  background: var(--color-primary);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.05;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-title span {
  color: var(--color-primary);
}

.hero-desc {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.75);
  max-width: 560px;
  margin-bottom: 40px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}


/* Hero Stats */
.hero-stats {
  position: relative;
  z-index: 2;
  background: rgba(255, 140, 0, 0.08);
  border-top: 1px solid rgba(255, 140, 0, 0.15);
  backdrop-filter: blur(8px);
}

.stats-row {
  display: flex;
  justify-content: space-around;
  padding: 28px 0;
  flex-wrap: wrap;
  gap: 16px;
}

.stat-item {
  text-align: center;
  padding: 8px 24px;
}

.stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* ============================================================
   PRODUCTS
   ============================================================ */
.products {
  background: var(--color-bg-alt);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.product-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-primary);
  box-shadow: 0 12px 32px rgba(255, 140, 0, 0.15);
}

.product-img-wrap {
  position: relative;
  height: 240px;
  overflow: hidden;
  background: var(--color-bg-alt-2);
}

.product-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.product-card:hover .product-img-wrap img {
  transform: scale(1.06);
}

.product-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--color-primary);
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  padding: 4px 10px;
  border-radius: 2px;
}

.product-badge.new {
  background: #0a7c3e;
}

.product-info {
  padding: 24px;
}

.product-info h3 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: 2px;
  margin-bottom: 4px;
}

.product-info h3 a {
  color: var(--color-text);
  transition: color var(--transition);
}

.product-info h3 a:hover {
  color: var(--color-primary);
}

.product-sub {
  font-size: 0.85rem;
  color: var(--color-primary);
  margin-bottom: 16px;
  font-weight: 500;
}

.product-specs {
  margin-bottom: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.product-specs li {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.product-specs li span {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: rgba(0, 0, 0, 0.35);
}

.product-desc-short {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
  line-height: 1.6;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about {
  background: var(--color-bg);
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-img-main {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-img-main img {
  width: 100%;
  height: 480px;
  object-fit: cover;
}

.about-cert-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--color-primary);
  color: #FFFFFF;
  padding: 16px 24px;
  border-radius: var(--radius);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 8px 24px rgba(255, 140, 0, 0.3);
}

.cert-icon {
  font-size: 1.2rem;
}

.about-content .section-title {
  text-align: left;
}

.about-content p {
  color: var(--color-text-muted);
  margin-bottom: 16px;
  line-height: 1.8;
}

.about-features {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.feature-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.feature-icon {
  color: var(--color-primary);
  font-size: 0.8rem;
  margin-top: 4px;
  flex-shrink: 0;
}

.feature-item h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 1px;
  margin-bottom: 4px;
  text-transform: uppercase;
}

.feature-item p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* ============================================================
   PROJECTS
   ============================================================ */
.projects {
  background: var(--color-bg-alt);
}

.projects-filter {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 40px;
}

.filter-btn {
  padding: 8px 20px;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: 2px;
  transition: all var(--transition);
  text-transform: uppercase;
  background: var(--color-bg);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #FFFFFF;
}

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

.project-card {
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  background: var(--color-bg);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.project-img {
  position: relative;
  height: 280px;
  overflow: hidden;
}

.project-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card:hover .project-img img {
  transform: scale(1.08);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, transparent 60%);
  display: flex;
  align-items: flex-end;
  padding: 24px;
  opacity: 0;
  transition: opacity var(--transition);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.project-cat {
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.project-overlay-content h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 4px;
  text-transform: uppercase;
}

.project-overlay-content p {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.7);
}

/* ============================================================
   WHY US
   ============================================================ */
.why-us {
  background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-bg-alt-2) 100%);
  position: relative;
  overflow: hidden;
}

.why-us::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 140, 0, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.section-header--light .section-title {
  color: var(--color-text);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.why-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.why-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: transform var(--transition);
}

.why-card:hover::after {
  transform: scaleX(1);
}

.why-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(255, 140, 0, 0.15);
}

.why-icon {
  width: 52px;
  height: 52px;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.why-icon svg {
  width: 100%;
  height: 100%;
}

.why-card h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.why-card p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================================
   TECHNICAL
   ============================================================ */
.technical {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.technical-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.technical-content .section-title {
  text-align: left;
}

.technical-content p {
  color: var(--color-text-muted);
  margin-bottom: 24px;
  line-height: 1.8;
}

.technical-list {
  margin-bottom: 36px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.technical-list li {
  font-size: 0.9rem;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.tech-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.tech-spec-row {
  display: grid;
  grid-template-columns: 140px 1fr 80px;
  align-items: center;
  gap: 12px;
}

.spec-label {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.spec-bar {
  height: 4px;
  background: var(--color-border-light);
  border-radius: 2px;
  overflow: hidden;
}

.spec-fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary));
  border-radius: 2px;
  animation: fillBar 1.5s ease-out forwards;
}

@keyframes fillBar {
  from {
    width: 0 !important;
  }
}

.spec-val {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
  text-align: right;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
  background: var(--color-bg);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}

.contact-info .section-title {
  text-align: left;
}

.contact-info>p {
  color: var(--color-text-muted);
  margin-bottom: 32px;
  line-height: 1.8;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 32px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-icon {
  width: 40px;
  height: 40px;
  background: rgba(255, 140, 0, 0.1);
  border: 1px solid rgba(255, 140, 0, 0.2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--color-primary);
  flex-shrink: 0;
}

.contact-item strong {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: rgba(0, 0, 0, 0.5);
  margin-bottom: 2px;
}

.contact-item p {
  font-size: 0.9rem;
  color: var(--color-text);
  margin: 0;
}

.cert-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.cert-tag {
  padding: 5px 12px;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--color-text-muted);
  background: var(--color-bg-alt);
}

/* Contact Form */
.contact-form-wrap {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
}

.contact-form h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: rgba(0, 0, 0, 0.5);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition);
  appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(0, 0, 0, 0.2);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  background: rgba(255, 140, 0, 0.02);
}

.form-group select option {
  background: var(--color-bg);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-note {
  text-align: center;
  font-size: 0.78rem;
  color: rgba(0, 0, 0, 0.3);
  margin-top: 12px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-bg-alt-2);
  border-top: 1px solid var(--color-border-light);
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding: 64px 0 40px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 280px;
}

.footer-links h4 {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--color-text);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links ul li a {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.footer-links ul li a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  border-top: 1px solid var(--color-border-light);
  padding: 20px 0;
}

.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(0, 0, 0, 0.3);
}

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  color: #FFFFFF;
  border-radius: var(--radius);
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition);
  z-index: 999;
  box-shadow: 0 4px 16px rgba(255, 140, 0, 0.3);
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

.back-to-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px);
}

/* ============================================================
   BREADCRUMB & PAGE HEADER
   ============================================================ */
.breadcrumb {
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border-light);
  padding: 16px 0;
  font-size: 0.85rem;
  margin-top: var(--header-height);
}

.breadcrumb .container {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--color-primary);
  transition: color var(--transition);
}

.breadcrumb a:hover {
  color: var(--color-text);
}

.breadcrumb span {
  color: var(--color-text-muted);
}

.page-header {
  background: url('./../images//banner-home.jpg');
  padding: 100px 0;
  text-align: center;
  border-bottom: 1px solid var(--color-border-light);
}

.page-header h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  color: var(--color-text);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.page-header p {
  font-size: 1.2rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
  text-shadow:
    -1px -1px 0 #7e7b7b,
    /* 左上 */
    1px -1px 0 #625f5f,
    /* 右上 */
    -1px 1px 0 #000,
    /* 左下 */
    1px 1px 0 #000;
  /* 右下 */
}

/* ============================================================
   PRODUCT DETAIL PAGE
   ============================================================ */
.product-hero {
  background: var(--color-bg);
  padding: 80px 0;
  border-bottom: 1px solid var(--color-border-light);
}

.product-hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.product-gallery {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--color-bg-alt-2);
}

.product-gallery img {
  width: 100%;
  height: 480px;
  object-fit: cover;
}

.product-thumbs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 16px;
}

.product-thumbs .thumb {
  height: 100px;
  border-radius: 4px;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  opacity: 0.6;
}

.product-thumbs .thumb:hover,
.product-thumbs .thumb.active {
  opacity: 1;
  border-color: var(--color-primary);
}

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

.product-cat {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--color-primary);
  margin-bottom: 12px;
  text-transform: uppercase;
}

.product-title {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--color-text);
  text-transform: uppercase;
  margin-bottom: 8px;
  line-height: 1;
}

.product-tagline {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.product-rating {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-border);
}

.stars {
  font-size: 1.2rem;
  color: #ffc107;
}

.rating-text {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.product-price-section {
  margin-bottom: 32px;
}

.price-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.price-value {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.price-note {
  font-size: 0.75rem;
  color: rgba(0, 0, 0, 0.3);
}

.product-cta {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.btn-lg {
  padding: 15px 40px;
  font-size: 0.95rem;
}

.product-features-quick {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.quick-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  background: rgba(255, 140, 0, 0.08);
  border-radius: 4px;
}

.quick-feature .icon {
  font-size: 1.4rem;
}

.quick-feature span:last-child {
  font-size: 0.85rem;
  color: var(--color-text);
}

/* Product Specs */
.product-specs {
  background: var(--color-bg-alt);
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.specs-table {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

.specs-table h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.specs-table table {
  width: 100%;
  border-collapse: collapse;
}

.specs-table tr {
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.specs-table tr:last-child {
  border-bottom: none;
}

.specs-table td {
  padding: 10px 0;
  font-size: 0.85rem;
}

.specs-table td:first-child {
  color: var(--color-text-muted);
  font-weight: 500;
  width: 40%;
}

.specs-table td:last-child {
  color: var(--color-text);
  text-align: right;
}

/* Product Variants */
.product-variants {
  background: var(--color-bg);
}

.variants-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.variant-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  transition: all var(--transition);
}

.variant-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(255, 140, 0, 0.15);
}

.variant-icon {
  font-size: 2.4rem;
  margin-bottom: 12px;
  display: block;
}

.variant-card h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.variant-card p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Applications */
.applications {
  background: var(--color-bg-alt);
}

.applications-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.app-item {
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  background: var(--color-bg);
}

.app-item img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.app-item:hover img {
  transform: scale(1.08);
}

.app-item h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 16px 12px 8px;
}

.app-item p {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  padding: 0 12px 12px;
  line-height: 1.5;
}

/* Comparison Table */
.comparison {
  background: var(--color-bg);
}

.comparison-table-wrap {
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.comparison-table thead {
  background: var(--color-bg-alt-2);
}

.comparison-table th {
  padding: 16px;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 1px;
  text-transform: uppercase;
  border-bottom: 2px solid var(--color-border);
}

.comparison-table td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  font-size: 0.85rem;
}

.comparison-table td:first-child {
  font-weight: 600;
  color: var(--color-text-muted);
  width: 30%;
}

.comparison-table td.highlight {
  color: var(--color-primary);
  font-weight: 700;
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  padding: 80px 0;
}

.cta-inner {
  text-align: center;
}

.cta-inner h2 {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: #FFFFFF;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.cta-inner p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 32px;
}

.cta-inner .btn {
  background: #FFFFFF;
  color: var(--color-primary);
  border-color: #FFFFFF;
}

.cta-inner .btn:hover {
  background: rgba(255, 255, 255, 0.9);
}

/* Products List Page */
.products-list {
  background: var(--color-bg);
}

.product-desc-short {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
  line-height: 1.6;
}

/* Projects Page */
.projects-showcase {
  background: var(--color-bg);
}

.projects-grid-large {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.project-card-large {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 48px;
}

.project-card-large:last-child {
  border-bottom: none;
}

.project-img-large {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.project-img-large img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card-large:hover .project-img-large img {
  transform: scale(1.05);
}

.project-info-large .project-cat {
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--color-primary);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.project-info-large h3 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-text);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.project-info-large .project-location {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.project-details {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 20px;
  padding: 20px;
  background: var(--color-bg-alt);
  border-radius: 6px;
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.detail-item .label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: rgba(0, 0, 0, 0.4);
}

.detail-item .value {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary);
}

.project-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 16px;
}

/* Project Stats */
.project-stats {
  background: var(--color-bg-alt);
}

.stats-grid-large {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  transition: all var(--transition);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.stat-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(255, 140, 0, 0.15);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* About Page */
.about-overview {
  background: var(--color-bg);
}

.overview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.overview-content h2 {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-text);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.overview-content p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 16px;
}

.overview-highlights {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 24px;
}

.highlight {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  background: rgba(255, 140, 0, 0.08);
  border-radius: 4px;
  font-size: 0.85rem;
  color: var(--color-text);
}

.highlight .icon {
  font-size: 1.2rem;
}

.overview-visual img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

.manufacturing {
  background: var(--color-bg-alt);
}

.manufacturing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.mfg-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  transition: all var(--transition);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.mfg-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(255, 140, 0, 0.15);
}

.mfg-icon {
  font-size: 2.4rem;
  margin-bottom: 12px;
  display: block;
}

.mfg-card h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.mfg-card p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.rd-innovation {
  background: var(--color-bg);
}

.rd-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.rd-item {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all var(--transition);
}

.rd-item:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(255, 140, 0, 0.15);
}

.rd-item h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.rd-item p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.certifications {
  background: var(--color-bg-alt);
}

.certifications-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.cert-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  transition: all var(--transition);
}

.cert-item:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255, 140, 0, 0.15);
}

.cert-badge {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  background: rgba(255, 140, 0, 0.15);
  border: 2px solid var(--color-primary);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
}

.cert-item h4 {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.cert-item p {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.timeline {
  background: var(--color-bg);
}

.timeline-items {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  position: relative;
}

.timeline-items::before {
  content: '';
  position: absolute;
  top: 30px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-border);
  z-index: 0;
}

.timeline-item {
  position: relative;
  z-index: 1;
}

.timeline-year {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 12px;
  position: relative;
}

.timeline-year::before {
  content: '';
  position: absolute;
  top: -42px;
  left: 0;
  width: 16px;
  height: 16px;
  background: var(--color-primary);
  border-radius: 50%;
  border: 3px solid var(--color-bg);
}

.timeline-content h3 {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.timeline-content p {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.team {
  background: var(--color-bg-alt);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.team-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  transition: all var(--transition);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.team-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(255, 140, 0, 0.15);
}

.team-icon {
  font-size: 2.8rem;
  margin-bottom: 12px;
  display: block;
}

.team-card h3 {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.team-card p {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.values {
  background: var(--color-bg);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.value-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  transition: all var(--transition);
}

.value-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(255, 140, 0, 0.15);
}

.value-card h3 {
  font-size: 1.05rem;
  color: var(--color-text);
  margin-bottom: 12px;
}

.value-card p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {

  .about-inner,
  .technical-inner,
  .contact-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about-cert-badge {
    bottom: 16px;
    right: 16px;
  }

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

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

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

  .product-hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .overview-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

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

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

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

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

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

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

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

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

  .project-card-large {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

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

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .section {
    padding: 64px 0;
  }

  .main-nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 0;
    z-index: 999;
  }

  .main-nav.open {
    display: block;
  }

  .main-nav>ul {
    flex-direction: column;
    gap: 0;
  }

  .main-nav>ul>li>a {
    padding: 14px 24px;
  }

  .dropdown {
    display: none !important;
  }

  .nav-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero-title {
    font-size: clamp(2rem, 8vw, 3rem);
  }

  .stats-row {
    gap: 8px;
  }

  .stat-item {
    padding: 8px 12px;
  }

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

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

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

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

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom .container {
    flex-direction: column;
    text-align: center;
  }

  .tech-spec-row {
    grid-template-columns: 120px 1fr 70px;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-actions .btn {
    width: auto;
  }

  .contact-form-wrap {
    padding: 24px;
  }
}

.solutions-hero {
  background: url(bg-url);
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.solutions-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  /* background: radial-gradient(circle at 20% 50%, rgba(240, 131, 1, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(240, 131, 1, 0.05) 0%, transparent 50%); */
  background: url('./../images//banner-home.jpg');
  pointer-events: none;
}

.solutions-hero-content {
  background: url(--bg-url);
  position: relative;
  z-index: 1;
}

.solutions-hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 20px;
  color: #FFFFFF;
  letter-spacing: -1px;
}

.solutions-hero p {
  font-size: 1.2rem;
  color: #B0B0B0;
  max-width: 600px;
  margin: 0 auto;
  text-shadow:
    -1px -1px 0 #7e7b7b,
    /* 左上 */
    1px -1px 0 #625f5f,
    /* 右上 */
    -1px 1px 0 #000,
    /* 左下 */
    1px 1px 0 #000;
  /* 右下 */
  ;
}

.solutions-category {
  margin-bottom: 80px;
}

.solutions-category-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 50px;
  color: #FFFFFF;
  text-transform: uppercase;
  letter-spacing: 2px;
  position: relative;
  padding-bottom: 20px;
}

.solutions-category-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: #F08301;
}

.solutions-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
  margin-bottom: 60px;
}

.solution-card-modern {
  background: linear-gradient(135deg, #0D0D0D 0%, #1A1A1A 100%);
  border: 1px solid #252525;
  border-radius: 12px;
  padding: 40px;
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.solution-card-modern::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #F08301 0%, transparent 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.solution-card-modern:hover {
  border-color: #F08301;
  background: linear-gradient(135deg, #1A1A1A 0%, #252525 100%);
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(240, 131, 1, 0.15);
}

.solution-card-modern:hover::before {
  transform: scaleX(1);
}

.solution-card-modern .solution-icon {
  font-size: 3rem;
  margin-bottom: 20px;
  display: block;
}

.solution-card-modern h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: #FFFFFF;
}

.solution-card-modern p {
  font-size: 0.95rem;
  color: #B0B0B0;
  line-height: 1.6;
  margin-bottom: 25px;
}

.solution-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 25px;
}

.spec-tag {
  display: inline-block;
  background: rgba(240, 131, 1, 0.1);
  color: #F08301;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid rgba(240, 131, 1, 0.3);
}

.solution-card-modern .btn {
  width: 100%;
  text-align: center;
}

.comparison-section {
  background: var(--color-bg-alt);
  padding: 60px 0;
  margin: 80px 0;
  border-radius: 12px;
}

.comparison-table-wrap {
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-bg);
  border-radius: 8px;
  overflow: hidden;
}

.comparison-table thead {
  background: linear-gradient(90deg, #1A1A1A 0%, #252525 100%);
}

.comparison-table th {
  padding: 20px;
  text-align: left;
  color: #F08301;
  font-weight: 700;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-bottom: 2px solid #333333;
}

.comparison-table td {
  padding: 18px 20px;
  color: #B0B0B0;
  border-bottom: 1px solid #1A1A1A;
}

.comparison-table tbody tr:hover {
  background: rgba(240, 131, 1, 0.05);
}

.comparison-table tbody tr:last-child td {
  border-bottom: none;
}

.cta-block {
  background: linear-gradient(135deg, rgba(240, 131, 1, 0.1) 0%, rgba(240, 131, 1, 0.05) 100%);
  border: 2px solid #F08301;
  border-radius: 12px;
  padding: 60px;
  text-align: center;
  margin: 80px 0;
}

.cta-block h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 20px;
  color: #FFFFFF;
}

.cta-block p {
  font-size: 1.1rem;
  color: #B0B0B0;
  margin-bottom: 30px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}