/* ========================================
   温州知了网络科技 - 企业官网样式表
   ======================================== */

/* CSS Variables */
:root {
  --primary: #1a1a2e;
  --secondary: #16213e;
  --accent: #ff6b35;
  --accent-light: #f7931a;
  --text-primary: #ffffff;
  --text-secondary: #a0aec0;
  --surface: #0f3460;
  --error: #e53e3e;
  --success: #38a169;

  --font-heading: "Noto Sans SC", "PingFang SC", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", sans-serif;
  --font-mono: "Inter", sans-serif;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 30px rgba(255, 107, 53, 0.3);

  --transition-fast: 200ms ease-out;
  --transition-normal: 400ms ease-out;
  --transition-slow: 600ms ease-out;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

.text-accent { color: var(--accent); }
.text-secondary { color: var(--text-secondary); }

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 80px 0;
}

@media (max-width: 768px) {
  section { padding: 48px 0; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
}

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

.btn-primary:hover {
  background: var(--accent-light);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

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

.btn-outline:hover {
  background: var(--accent);
  color: white;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* ========================================
   Header & Navigation
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition-fast);
}

.header.scrolled {
  background: rgba(26, 26, 46, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 700;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.logo-zl {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: white;
  letter-spacing: -1px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-link {
  position: relative;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-weight: 600;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 8px;
}

@media (max-width: 1024px) {
  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .header-phone {
    display: none;
  }
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--primary);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu .nav-link {
  font-size: 1.5rem;
}

.mobile-menu-close {
  position: absolute;
  top: 24px;
  right: 24px;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 8px;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--primary) 100%);
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, var(--surface) 1px, transparent 1px),
    linear-gradient(var(--surface) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.1;
}

.hero-bg::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 150%;
  background: radial-gradient(ellipse, rgba(255, 107, 53, 0.1) 0%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 107, 53, 0.15);
  border: 1px solid var(--accent);
  border-radius: 50px;
  font-size: 0.875rem;
  color: var(--accent);
  margin-bottom: 24px;
}

.hero h1 {
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 600px;
}

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

.hero-visual {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: 45%;
  aspect-ratio: 1;
  opacity: 0.8;
}

.hero-shape {
  position: absolute;
  border-radius: 50%;
  border: 2px solid var(--accent);
  opacity: 0.3;
  animation: pulse 4s ease-in-out infinite;
}

.hero-shape:nth-child(1) {
  inset: 0;
  animation-delay: 0s;
}

.hero-shape:nth-child(2) {
  inset: 15%;
  animation-delay: 1s;
}

.hero-shape:nth-child(3) {
  inset: 30%;
  animation-delay: 2s;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.05); opacity: 0.5; }
}

@media (max-width: 1024px) {
  .hero-visual { display: none; }
}

/* ========================================
   Sections Common
   ======================================== */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.section-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(255, 107, 53, 0.1);
  border-radius: 50px;
  font-size: 0.875rem;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-header h2 {
  margin-bottom: 16px;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.125rem;
}

/* ========================================
   Business Cards
   ======================================== */
.business-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 1024px) {
  .business-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .business-grid { grid-template-columns: 1fr; }
}

.business-card {
  background: var(--secondary);
  border-radius: var(--radius-md);
  padding: 32px;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.business-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-md);
  padding: 1px;
  background: linear-gradient(135deg, var(--accent), transparent);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.business-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-card);
}

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

.business-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.business-icon svg {
  width: 32px;
  height: 32px;
  color: white;
}

.business-card h3 {
  margin-bottom: 12px;
  font-size: 1.5rem;
}

.business-card p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.7;
}

.business-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-weight: 600;
  transition: gap var(--transition-fast);
}

.business-link:hover {
  gap: 12px;
}

/* ========================================
   Stats Section
   ======================================== */
.stats {
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  position: relative;
}

.stats::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, var(--surface) 1px, transparent 1px),
    linear-gradient(var(--surface) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.05;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
}

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

.stat-number {
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 1rem;
  color: var(--text-secondary);
}

/* ========================================
   About Preview Section
   ======================================== */
.about-preview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

@media (max-width: 1024px) {
  .about-preview {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.about-content h2 {
  margin-bottom: 24px;
}

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

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.about-feature {
  display: flex;
  align-items: center;
  gap: 12px;
}

.about-feature svg {
  width: 20px;
  height: 20px;
  color: var(--accent);
  flex-shrink: 0;
}

.about-visual {
  position: relative;
  aspect-ratio: 4/3;
  background: var(--secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, transparent 40%, var(--accent) 100%);
  opacity: 0.2;
}

.about-visual-content {
  text-align: center;
  z-index: 1;
}

.about-visual-content svg {
  width: 120px;
  height: 120px;
  color: var(--accent);
  opacity: 0.5;
  margin-bottom: 16px;
}

.about-logo-large {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 16px;
}

.about-logo-large span {
  font-size: 4rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.7;
  line-height: 1;
}

.about-logo-large small {
  font-size: 1.25rem;
  color: var(--text-secondary);
  opacity: 0.5;
  margin-top: 8px;
}

/* ========================================
   Features Grid
   ======================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

@media (max-width: 768px) {
  .features-grid { grid-template-columns: 1fr; }
}

.feature-card {
  display: flex;
  gap: 20px;
  padding: 32px;
  background: var(--secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

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

.feature-icon {
  width: 56px;
  height: 56px;
  background: rgba(255, 107, 53, 0.15);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.feature-icon svg {
  width: 28px;
  height: 28px;
  color: var(--accent);
}

.feature-content h4 {
  margin-bottom: 8px;
}

.feature-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ========================================
   CTA Section
   ======================================== */
.cta {
  text-align: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(255,255,255,0.1) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,0.1) 1px, transparent 1px);
  background-size: 40px 40px;
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta h2 {
  margin-bottom: 16px;
}

.cta p {
  font-size: 1.125rem;
  opacity: 0.9;
  margin-bottom: 32px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta .btn {
  background: white;
  color: var(--accent);
}

.cta .btn:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
}

/* ========================================
   Partner Logos
   ======================================== */
.partners {
  background: var(--secondary);
}

.partners-slider {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 48px;
  flex-wrap: wrap;
  opacity: 0.6;
}

.partner-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-secondary);
  padding: 16px 24px;
  border: 1px solid var(--surface);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.partner-logo:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background: var(--secondary);
  padding: 60px 0 24px;
  border-top: 1px solid var(--surface);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand {
  max-width: 300px;
}

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

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.footer-section h4 {
  font-size: 1rem;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.footer-contact-item svg {
  width: 20px;
  height: 20px;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--surface);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.footer-social {
  display: flex;
  gap: 16px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border: 1px solid var(--surface);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.footer-social svg {
  width: 20px;
  height: 20px;
}

/* ========================================
   Contact Page
   ======================================== */
.contact-section {
  padding-top: 120px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

@media (max-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

.contact-info h2 {
  margin-bottom: 24px;
}

.contact-info > p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.7;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

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

.contact-item-icon {
  width: 48px;
  height: 48px;
  background: rgba(255, 107, 53, 0.15);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-item-icon svg {
  width: 24px;
  height: 24px;
  color: var(--accent);
}

.contact-item h4 {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 4px;
}

.contact-item p {
  font-size: 1rem;
  line-height: 1.5;
}

.contact-cta-box {
  margin-top: 32px;
  padding: 20px;
  background: rgba(255, 107, 53, 0.1);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  text-align: center;
}

.contact-cta-box p {
  color: var(--text-primary);
  font-size: 1rem;
  margin: 0;
}

.contact-cta-box strong {
  color: var(--accent);
  font-size: 1.5rem;
}

.contact-form {
  background: var(--secondary);
  padding: 40px;
  border-radius: var(--radius-md);
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--primary);
  border: 1px solid var(--surface);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.15);
}

.form-group input.error,
.form-group textarea.error {
  border-color: var(--error);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-error {
  color: var(--error);
  font-size: 0.875rem;
  margin-top: 6px;
  display: none;
}

.form-group.has-error .form-error {
  display: block;
}

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

@media (max-width: 640px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.form-success {
  background: rgba(56, 161, 105, 0.15);
  border: 1px solid var(--success);
  border-radius: var(--radius-sm);
  padding: 16px;
  color: var(--success);
  text-align: center;
  margin-bottom: 24px;
  display: none;
}

.form-success.show {
  display: block;
}

/* ========================================
   Animations
   ======================================== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.stagger-1 { transition-delay: 100ms; }
.stagger-2 { transition-delay: 200ms; }
.stagger-3 { transition-delay: 300ms; }
.stagger-4 { transition-delay: 400ms; }

/* ========================================
   Page Specific
   ======================================== */
.page-hero {
  padding: 160px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--secondary), var(--primary));
}

.page-hero::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse at right, rgba(255, 107, 53, 0.1), transparent 70%);
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 24px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

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

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

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

.page-hero h1 {
  margin-bottom: 16px;
}

.page-hero p {
  color: var(--text-secondary);
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Services Detail */
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 60px 0;
}

.service-detail:nth-child(even) {
  direction: rtl;
}

.service-detail:nth-child(even) > * {
  direction: ltr;
}

@media (max-width: 1024px) {
  .service-detail,
  .service-detail:nth-child(even) {
    grid-template-columns: 1fr;
    direction: ltr;
  }
}

.service-detail-content h3 {
  margin-bottom: 16px;
  font-size: 2rem;
}

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

.service-detail-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.service-detail-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-secondary);
}

.service-detail-list svg {
  width: 20px;
  height: 20px;
  color: var(--accent);
  flex-shrink: 0;
}

.service-detail-visual {
  background: var(--secondary);
  border-radius: var(--radius-lg);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.service-detail-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 30%, var(--accent) 100%);
  opacity: 0.15;
}

.service-detail-visual svg {
  width: 100px;
  height: 100px;
  color: var(--accent);
  opacity: 0.5;
}

/* Advantages Detail */
.advantage-full {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

@media (max-width: 768px) {
  .advantage-full {
    grid-template-columns: 1fr;
  }
}

.advantage-card {
  background: var(--secondary);
  padding: 40px;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

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

.advantage-card-icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.advantage-card-icon svg {
  width: 36px;
  height: 36px;
  color: white;
}

.advantage-card h3 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.advantage-card p {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ========================================
   Process Flow
   ======================================== */
.process-flow {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.process-step {
  flex: 1;
  min-width: 180px;
  max-width: 200px;
  text-align: center;
  padding: 24px 16px;
  background: var(--secondary);
  border-radius: var(--radius-md);
  position: relative;
  transition: all var(--transition-fast);
}

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

.process-number {
  position: absolute;
  top: 12px;
  left: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.6;
}

.process-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  background: rgba(255, 107, 53, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.process-icon svg {
  color: var(--accent);
}

.process-step h4 {
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.process-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  opacity: 0.5;
  flex-shrink: 0;
  padding-top: 40px;
}

@media (max-width: 1024px) {
  .process-flow {
    gap: 12px;
  }

  .process-step {
    min-width: 150px;
    max-width: 150px;
    padding: 20px 12px;
  }

  .process-icon {
    width: 56px;
    height: 56px;
  }

  .process-arrow {
    display: none;
  }
}

@media (max-width: 768px) {
  .process-flow {
    gap: 16px;
  }

  .process-step {
    min-width: 100%;
    max-width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
  }

  .process-step::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-top: 10px solid var(--accent);
    opacity: 0.3;
  }

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

  .process-arrow {
    display: none;
  }
}