/* ========================================
   未领科技官网 - 深色科技风样式
   ======================================== */

/* CSS Variables */
:root {
  --bg-primary: #0a0f1a;
  --bg-card: #1a1f2e;
  --bg-footer: #050810;
  --accent-blue: #2962ff;
  --accent-cyan: #00e5ff;
  --text-white: #ffffff;
  --text-gray: #b0b8c8;
  --text-dim: #6b7280;
  --border-color: #2a3142;
  --glow-blue: rgba(41, 98, 255, 0.15);
  --glow-cyan: rgba(0, 229, 255, 0.1);
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-gray);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--accent-blue);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--accent-cyan);
}

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

ul {
  list-style: none;
}

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

/* ========================================
   Navigation
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 15, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: 0 2rem;
}

.navbar-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.navbar-brand img {
  height: 40px;
  width: auto;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-item {
  position: relative;
}

.navbar-link {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.75rem 1rem;
  color: var(--text-gray);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.3s ease;
}

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

.navbar-link svg {
  width: 12px;
  height: 12px;
  transition: transform 0.3s ease;
}

.navbar-item:hover .navbar-link svg {
  transform: rotate(180deg);
}

/* Dropdown */
.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 280px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 0.75rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.3s ease;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

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

.dropdown-item {
  display: block;
  padding: 0.75rem 1rem;
  color: var(--text-gray);
  border-radius: 8px;
  transition: all 0.3s ease;
  font-size: 0.9rem;
}

.dropdown-item:hover {
  background: var(--glow-blue);
  color: var(--text-white);
}

.dropdown-item small {
  display: block;
  color: var(--text-dim);
  font-size: 0.8rem;
  margin-top: 0.25rem;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-white);
  transition: all 0.3s ease;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ========================================
   Hero Banner
   ======================================== */
.hero {
  position: relative;
  margin-top: 72px;
  height: 620px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg-primary) 0%, #0d1526 100%);
}

.hero-slides {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s ease, visibility 0s linear 0.8s;
  display: flex;
  align-items: center;
}

.hero-slide.active {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.8s ease, visibility 0s linear 0s;
  z-index: 1;
}

/* Each slide has its own gradient accent */
.hero-slide:nth-child(1) {
  background: linear-gradient(135deg, #0a0f1a 0%, #0d1a2d 40%, #0a1628 100%);
}
.hero-slide:nth-child(1)::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 70%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(41, 98, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-slide:nth-child(2) {
  background: linear-gradient(135deg, #0a0f1a 0%, #0f1a2a 40%, #0a1520 100%);
}
.hero-slide:nth-child(2)::before {
  content: '';
  position: absolute;
  top: -30%;
  left: -10%;
  width: 60%;
  height: 180%;
  background: radial-gradient(ellipse, rgba(0, 229, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-slide:nth-child(3) {
  background: linear-gradient(135deg, #0a0f1a 0%, #1a0f2d 40%, #0d0a28 100%);
}
.hero-slide:nth-child(3)::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -15%;
  width: 65%;
  height: 190%;
  background: radial-gradient(ellipse, rgba(139, 92, 246, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
}

.hero-left {
  flex: 1;
  max-width: 680px;
}

.hero-visual {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  padding: 2.5rem 3rem;
  text-align: center;
  min-width: 220px;
  backdrop-filter: blur(10px);
}

.hvc-label {
  color: var(--text-gray);
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hvc-value {
  font-size: 4.5rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hvc-unit {
  font-size: 1.5rem;
  font-weight: 600;
  opacity: 0.7;
}

.hvc-desc {
  color: var(--text-gray);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.hvc-compare {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 1rem;
}

.hvc-our {
  font-size: 4rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.hvc-vs {
  font-size: 1.2rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.2);
  padding: 0 0.25rem;
}

.hvc-rival {
  font-size: 4rem;
  font-weight: 800;
  color: rgba(255, 80, 80, 0.5);
  line-height: 1;
  text-decoration: line-through;
}

.hero-badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  letter-spacing: 0.02em;
}

.badge-blue {
  background: rgba(41, 98, 255, 0.12);
  border: 1px solid rgba(41, 98, 255, 0.3);
  color: #6b9fff;
}

.badge-cyan {
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid rgba(0, 229, 255, 0.3);
  color: var(--accent-cyan);
}

.badge-purple {
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid rgba(139, 92, 246, 0.3);
  color: #a78bfa;
}

.hero-highlight {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--text-white);
  line-height: 1.2;
  margin-bottom: 1rem;
  max-width: 700px;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-gray);
  margin-bottom: 2rem;
  max-width: 600px;
}

.hero-params {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

.hero-param {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(0, 229, 255, 0.1);
  border-radius: 6px;
  color: var(--accent-cyan);
  font-size: 0.9rem;
  font-weight: 500;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
}

.btn-primary {
  background: var(--accent-blue);
  color: var(--text-white);
}

.btn-primary:hover {
  background: #1e5bff;
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(41, 98, 255, 0.3);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.2);
  color: var(--text-gray);
}

.btn-outline:hover {
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--text-white);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  border: 2px solid var(--border-color);
  color: var(--text-white);
}

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

/* Hero Navigation */
.hero-nav {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.75rem;
  z-index: 10;
}

.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-color);
  cursor: pointer;
  transition: all 0.3s ease;
}

.hero-dot.active {
  background: var(--accent-blue);
  width: 30px;
  border-radius: 5px;
}

.hero-arrows {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  display: flex;
  justify-content: space-between;
  padding: 0 1rem;
  pointer-events: none;
}

.hero-arrow {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(26, 31, 46, 0.8);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  pointer-events: auto;
  transition: all 0.3s ease;
  color: var(--text-white);
}

.hero-arrow:hover {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
}

.hero-arrow svg {
  width: 20px;
  height: 20px;
}

/* ========================================
   Sections
   ======================================== */
.section {
  padding: 5rem 2rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-badge {
  display: inline-block;
  padding: 0.375rem 1rem;
  background: var(--glow-blue);
  border-radius: 50px;
  color: var(--accent-blue);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-gray);
  max-width: 700px;
  margin: 0 auto;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
}

/* ========================================
   Cards
   ======================================== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.3s ease;
}

.card:hover {
  border-color: var(--accent-blue);
  box-shadow: 0 10px 40px rgba(41, 98, 255, 0.1);
  transform: translateY(-4px);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.card-icon {
  width: 56px;
  height: 56px;
  background: var(--glow-blue);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--accent-blue);
}

.card-icon svg {
  width: 28px;
  height: 28px;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-white);
  margin-bottom: 0.75rem;
}

.card-desc {
  color: var(--text-gray);
  font-size: 0.95rem;
  line-height: 1.7;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  font-weight: 500;
}

.card-link svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s ease;
}

.card:hover .card-link svg {
  transform: translateX(4px);
}

/* ========================================
   Solution Cards
   ======================================== */
.solution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.solution-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.3s ease;
  overflow: hidden;
}

.solution-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.solution-card:hover {
  border-color: var(--accent-blue);
  transform: translateY(-4px);
}

.solution-card:hover::before {
  opacity: 1;
}

.solution-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--glow-blue), var(--glow-cyan));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--accent-cyan);
}

.solution-icon svg {
  width: 32px;
  height: 32px;
}

.solution-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-white);
  margin-bottom: 0.75rem;
}

.solution-desc {
  color: var(--text-gray);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ========================================
   Product Cards
   ======================================== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.product-card:hover {
  border-color: var(--accent-blue);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.product-image {
  height: 180px;
  background: linear-gradient(135deg, #0f1629 0%, #1a2235 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border-color);
}

.product-image .placeholder {
  color: var(--accent-cyan);
  font-size: 3rem;
  font-weight: 700;
}

.product-content {
  padding: 1.5rem;
}

.product-name {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-white);
  margin-bottom: 0.5rem;
}

.product-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--glow-cyan);
  border-radius: 50px;
  color: var(--accent-cyan);
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.product-desc {
  color: var(--text-gray);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.product-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.product-spec {
  padding: 0.25rem 0.5rem;
  background: rgba(41, 98, 255, 0.1);
  border-radius: 4px;
  color: var(--accent-blue);
  font-size: 0.8rem;
}

/* ========================================
   Tables
   ======================================== */
.table-wrapper {
  overflow-x: auto;
  margin: 2rem 0;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

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

th, td {
  padding: 1rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

th {
  background: rgba(41, 98, 255, 0.1);
  color: var(--text-white);
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

td {
  color: var(--text-gray);
  font-size: 0.95rem;
}

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

tr:hover td {
  background: rgba(41, 98, 255, 0.05);
}

.highlight {
  color: var(--accent-cyan);
  font-weight: 600;
}

.best {
  color: var(--accent-blue);
  font-weight: 600;
}

/* ========================================
   Feature List
   ======================================== */
.feature-list {
  display: grid;
  gap: 1rem;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  transition: all 0.3s ease;
}

.feature-item:hover {
  border-color: var(--accent-blue);
}

.feature-icon {
  width: 40px;
  height: 40px;
  background: var(--glow-blue);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  flex-shrink: 0;
}

.feature-icon svg {
  width: 20px;
  height: 20px;
}

.feature-content h4 {
  color: var(--text-white);
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.feature-content p {
  color: var(--text-gray);
  font-size: 0.9rem;
}

/* ========================================
   FAQ Accordion
   ======================================== */
.faq-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 3rem;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: var(--accent-blue);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  color: var(--text-white);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: all 0.3s ease;
}

.faq-question:hover {
  color: var(--accent-cyan);
}

.faq-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--accent-blue);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-content {
  padding: 0 1.5rem 1.5rem;
  color: var(--text-gray);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

/* ========================================
   Contact Banner
   ======================================== */
.contact-banner {
  background: linear-gradient(135deg, var(--bg-card) 0%, #1e2540 100%);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 3rem;
  text-align: center;
  margin: 3rem 0;
}

.contact-banner h3 {
  font-size: 1.5rem;
  color: var(--text-white);
  margin-bottom: 1rem;
}

.contact-banner p {
  color: var(--text-gray);
  margin-bottom: 1.5rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.contact-banner .email {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--accent-blue);
  color: var(--text-white);
  border-radius: 8px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.contact-banner .email:hover {
  background: #1e5bff;
  transform: translateY(-2px);
}

/* ========================================
   Empowerment Section
   ======================================== */
.empowerment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.empowerment-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid rgba(0, 229, 255, 0.2);
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  transition: all 0.3s ease;
  overflow: hidden;
}

.empowerment-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at center, var(--glow-cyan) 0%, transparent 70%);
  opacity: 0.3;
  pointer-events: none;
}

.empowerment-card:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-4px);
}

.empowerment-icon {
  position: relative;
  width: 64px;
  height: 64px;
  background: var(--glow-cyan);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  color: var(--accent-cyan);
}

.empowerment-icon svg {
  width: 28px;
  height: 28px;
}

.empowerment-card h4 {
  position: relative;
  font-size: 1.1rem;
  color: var(--text-white);
  margin-bottom: 0.75rem;
}

.empowerment-card p {
  position: relative;
  color: var(--text-gray);
  font-size: 0.9rem;
}

/* ========================================
   Workflow
   ======================================== */
.workflow {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin: 3rem 0;
}

.workflow-step {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.workflow-step span {
  padding: 0.5rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-white);
  font-size: 0.9rem;
  font-weight: 500;
}

.workflow-step svg {
  width: 20px;
  height: 20px;
  color: var(--accent-cyan);
}

/* ========================================
   Page Header (Breadcrumb)
   ======================================== */
.page-header {
  margin-top: 72px;
  padding: 3rem 2rem;
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-primary) 100%);
  border-bottom: 1px solid var(--border-color);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

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

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

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

.breadcrumb svg {
  width: 14px;
  height: 14px;
}

.page-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 0.75rem;
}

.page-header .subtitle {
  font-size: 1.1rem;
  color: var(--text-gray);
  max-width: 800px;
}

/* ========================================
   Product Detail
   ======================================== */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin: 3rem 0;
}

.product-specs-table {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
}

.product-specs-table h3 {
  font-size: 1.25rem;
  color: var(--text-white);
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.spec-row {
  display: flex;
  justify-content: space-between;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-color);
}

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

.spec-label {
  color: var(--text-gray);
}

.spec-value {
  color: var(--accent-cyan);
  font-weight: 600;
}

/* ========================================
   Brand Logos
   ======================================== */
.brand-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 3rem;
  padding: 2rem 0;
}

.brand-item {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 2px;
  opacity: 0.6;
  transition: all 0.3s ease;
}

.brand-item:hover {
  opacity: 1;
  color: var(--text-white);
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background: var(--bg-footer);
  border-top: 1px solid var(--border-color);
  padding: 4rem 2rem 2rem;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand img {
  height: 36px;
  margin-bottom: 0.5rem;
}

.footer-brand p {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-top: 1rem;
}

.footer-column h4 {
  color: var(--text-white);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.footer-column ul {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-column a {
  color: var(--text-gray);
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

.footer-column a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copyright {
  color: var(--text-dim);
  font-size: 0.85rem;
}

.footer-contact {
  color: var(--text-gray);
  font-size: 0.9rem;
}

.footer-contact a {
  color: var(--accent-cyan);
}

/* ========================================
   Roadmap Timeline
   ======================================== */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-blue), var(--accent-cyan));
}

.timeline-item {
  position: relative;
  padding-bottom: 2.5rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 0;
  width: 14px;
  height: 14px;
  background: var(--accent-blue);
  border-radius: 50%;
  transform: translateX(-6px);
}

.timeline-period {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--glow-blue);
  border-radius: 50px;
  color: var(--accent-blue);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.timeline-item h4 {
  color: var(--text-white);
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.timeline-item p {
  color: var(--text-gray);
  font-size: 0.9rem;
}

/* ========================================
   Chips List
   ======================================== */
.chip-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.chip-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  transition: all 0.3s ease;
}

.chip-card:hover {
  border-color: var(--accent-blue);
}

.chip-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
  font-family: 'Consolas', 'Monaco', monospace;
}

.chip-desc {
  color: var(--text-gray);
  font-size: 0.9rem;
}

.chip-category {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  background: var(--glow-blue);
  border-radius: 4px;
  color: var(--accent-blue);
  font-size: 0.75rem;
  margin-bottom: 0.5rem;
}

/* ========================================
   About Page
   ======================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin: 3rem 0;
}

.about-content h2 {
  font-size: 2rem;
  color: var(--text-white);
  margin-bottom: 1.5rem;
}

.about-content p {
  color: var(--text-gray);
  margin-bottom: 1rem;
  line-height: 1.8;
}

.about-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

.value-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.value-icon {
  width: 48px;
  height: 48px;
  background: var(--glow-blue);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
}

.value-icon svg {
  width: 24px;
  height: 24px;
}

.value-item span {
  color: var(--text-white);
  font-weight: 500;
}

/* ========================================
   Solution Detail
   ======================================== */
.solution-header {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin: 3rem 0;
}

.solution-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.solution-tag span {
  padding: 0.375rem 1rem;
  background: var(--glow-blue);
  border-radius: 50px;
  color: var(--accent-blue);
  font-size: 0.8rem;
  font-weight: 600;
}

.solution-tag .hot {
  background: linear-gradient(135deg, #ff6b35, #ff4757);
  color: white;
}

.solution-tag .new {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: white;
}

.solution-tag .recommend {
  background: var(--glow-cyan);
  color: var(--accent-cyan);
}

.solution-tag .pause {
  background: rgba(107, 114, 128, 0.3);
  color: var(--text-dim);
}

.solution-list {
  margin: 2rem 0;
}

.solution-list h3 {
  font-size: 1.5rem;
  color: var(--text-white);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.solution-list h3 svg {
  width: 24px;
  height: 24px;
  color: var(--accent-cyan);
}

.solution-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  transition: all 0.3s ease;
}

.solution-item:hover {
  border-color: var(--accent-blue);
}

.solution-item h4 {
  color: var(--text-white);
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.solution-item p {
  color: var(--text-gray);
  font-size: 0.9rem;
  line-height: 1.7;
}

.solution-item .specs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.solution-item .spec {
  padding: 0.25rem 0.75rem;
  background: rgba(0, 229, 255, 0.1);
  border-radius: 4px;
  color: var(--accent-cyan);
  font-size: 0.8rem;
  font-weight: 500;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
  
  .product-detail {
    grid-template-columns: 1fr;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-visual-card {
    padding: 1.5rem 2rem;
  }
  
  .hvc-value {
    font-size: 3rem;
  }
}

@media (max-width: 768px) {
  /* Global overflow fix */
  html, body {
    overflow-x: hidden;
    width: 100%;
  }
  
  .container {
    padding: 0 1rem;
  }
  
  /* Mobile menu */
  .menu-toggle {
    display: flex;
  }
  
  .navbar {
    padding: 0 1rem;
  }
  
  .navbar-brand img {
    height: 32px;
  }
  
  .navbar-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
    z-index: 999;
  }
  
  .navbar-menu.active {
    transform: translateX(0);
  }
  
  .navbar-item {
    border-bottom: 1px solid var(--border-color);
  }
  
  .navbar-link {
    padding: 1rem;
  }
  
  .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    border-radius: 0;
    background: rgba(0, 0, 0, 0.3);
    display: none;
  }
  
  .navbar-item.active .dropdown {
    display: block;
  }
  
  .dropdown-item {
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
  }
  
  .dropdown-item small {
    display: block;
    font-size: 0.75rem;
    margin-top: 2px;
  }
  
  /* Hero Banner mobile */
  .hero {
    height: auto;
    min-height: 420px;
    margin-top: 60px;
  }
  
  .hero-content {
    flex-direction: column;
    gap: 1rem;
    padding: 2rem 1rem;
  }
  
  .hero-visual {
    display: none;
  }

  .hero-left {
    max-width: 100%;
  }
  
  .hero-badge {
    font-size: 0.75rem;
    padding: 0.4rem 0.8rem;
    margin-bottom: 1rem;
  }
  
  .hero-title {
    font-size: 1.75rem;
    line-height: 1.3;
    margin-bottom: 0.75rem;
  }
  
  .hero-subtitle {
    font-size: 0.85rem;
    margin-bottom: 1.25rem;
  }
  
  .hero-params {
    gap: 0.5rem;
    margin-bottom: 1.25rem;
  }
  
  .hero-param {
    font-size: 0.8rem;
    padding: 0.4rem 0.75rem;
  }
  
  .hero-buttons {
    gap: 0.75rem;
  }
  
  .btn {
    padding: 0.7rem 1.25rem;
    font-size: 0.9rem;
  }
  
  .hero-arrows {
    display: none;
  }
  
  .hero-nav {
    bottom: 1rem;
  }
  
  /* Sections */
  .section {
    padding: 2.5rem 1rem;
  }
  
  .section-badge {
    font-size: 0.7rem;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .section-desc {
    font-size: 0.95rem;
  }
  
  .section-header {
    margin-bottom: 2rem;
  }
  
  /* Cards grid */
  .card-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .solution-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .product-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  /* Product cards */
  .product-image {
    height: 140px;
  }
  
  /* Page header */
  .page-header {
    padding: 2rem 1rem;
    margin-top: 60px;
  }
  
  .page-header h1 {
    font-size: 1.5rem;
  }
  
  .breadcrumb {
    font-size: 0.85rem;
    flex-wrap: wrap;
  }
  
  /* Product detail */
  .product-detail {
    grid-template-columns: 1fr;
  }
  
  .product-specs-table {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  .spec-row {
    min-width: 0;
  }
  
  /* Tables - horizontal scroll */
  .comparison-table,
  table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
  }
  
  th, td {
    padding: 0.6rem 0.5rem;
    font-size: 0.8rem;
  }
  
  /* About */
  .about-grid {
    grid-template-columns: 1fr;
  }
  
  .about-values {
    grid-template-columns: 1fr;
  }
  
  /* Footer */
  .footer-top {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 2rem 1rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 0.5rem;
    padding: 1rem;
  }
  
  /* Workflow / empowement */
  .workflow {
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
  }
  
  .workflow-step {
    flex-direction: column;
    gap: 0.25rem;
  }
  
  .workflow-step span {
    font-size: 0.8rem;
  }
  
  .workflow-step svg {
    transform: rotate(90deg);
    width: 16px;
    height: 16px;
  }
  
  /* FAQ */
  .faq-section {
    padding: 1.5rem 1rem;
  }
  
  .faq-item {
    padding: 1rem;
  }
  
  .faq-question {
    font-size: 0.95rem;
  }
  
  .faq-answer {
    font-size: 0.9rem;
  }
  
  /* Contact banner */
  .contact-banner {
    padding: 1.5rem 1rem;
    text-align: center;
  }
  
  .contact-banner a.email {
    display: inline-block;
    word-break: break-all;
  }
  
  /* Empower section on homepage */
  .empower-flow {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  .hero {
    min-height: 380px;
  }
  
  .hero-title {
    font-size: 1.4rem;
  }
  
  .hero-param {
    font-size: 0.7rem;
    padding: 0.3rem 0.6rem;
  }
  
  .btn {
    padding: 0.6rem 1rem;
    font-size: 0.85rem;
  }
  
  .section-title {
    font-size: 1.25rem;
  }
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease forwards;
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
  .navbar,
  .hero-arrows,
  .hero-nav,
  .contact-banner,
  .footer {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .card,
  .solution-card,
  .product-card {
    border: 1px solid #ccc;
  }
}