:root {
  --primary-red: #d91b24;
  --primary-crimson: #ba121a;
  --secondary-amber: #e65100;
  --accent-gold: #ff9800;
  --bg-main: #fdfaf9;
  --bg-card: #ffffff;
  --text-main: #1f1f1f;
  --text-muted: #555555;
  --border-light: #f0d8d6;
  --border-active: #ea2935;
  --shadow-sm: 0 4px 12px rgba(217, 27, 36, 0.06);
  --shadow-hover: 0 12px 28px rgba(186, 18, 26, 0.14);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --transition: all 0.28s ease;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  font-size: 16px;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: radial-gradient(circle at 10% 20%, rgba(217, 27, 36, 0.02) 0%, transparent 40%), radial-gradient(circle at 90% 80%, rgba(230, 81, 0, 0.03) 0%, transparent 45%);
}
.site-container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Header */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}
.header-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand-area {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo-box {
  width: 140px;
  display: flex;
  align-items: center;
}
.brand-slogan {
  font-size: 0.85rem;
  color: var(--primary-crimson);
  font-weight: 600;
  padding-left: 10px;
  border-left: 2px solid var(--primary-red);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
}
.nav-links a {
  padding: 8px 12px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-main);
  border-radius: var(--radius-sm);
  display: inline-block;
}
.nav-links a:hover,
.nav-links a:focus {
  color: var(--primary-red);
  background: rgba(217, 27, 36, 0.04);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.btn-solid-red {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-crimson) 100%);
  color: #ffffff !important;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 14px rgba(217, 27, 36, 0.28);
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
}
.btn-solid-red:hover {
  background: linear-gradient(135deg, #e0242e 0%, #a60f16 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(217, 27, 36, 0.38);
}
.btn-outline-red {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--primary-red);
  color: var(--primary-red) !important;
  background: #ffffff;
  font-weight: 600;
  padding: 9px 20px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
}
.btn-outline-red:hover {
  background: rgba(217, 27, 36, 0.06);
  transform: translateY(-2px);
}
.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-main);
  margin: 5px 0;
  transition: var(--transition);
}

/* Hero Section (No Images Allowed) */
.hero-section {
  padding: 80px 0 60px;
  background: linear-gradient(180deg, #fff2f1 0%, #fdfaf9 100%);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border-light);
}
.hero-decor-orb-1 {
  position: absolute;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(217, 27, 36, 0.12) 0%, rgba(255, 255, 255, 0) 70%);
  top: -120px;
  right: -80px;
  z-index: 1;
}
.hero-decor-orb-2 {
  position: absolute;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(230, 81, 0, 0.09) 0%, rgba(255, 255, 255, 0) 70%);
  bottom: -100px;
  left: -60px;
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 960px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #ffffff;
  border: 1px solid var(--border-light);
  padding: 6px 18px;
  border-radius: 30px;
  font-size: 0.88rem;
  color: var(--primary-crimson);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
}
.hero-title {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.25;
  color: #1a1a1a;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}
.hero-title .text-gradient {
  background: linear-gradient(120deg, var(--primary-red) 0%, var(--secondary-amber) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size: 1.15rem;
  color: #444444;
  margin-bottom: 34px;
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}
.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.hero-actions .btn-solid-red {
  padding: 14px 34px;
  font-size: 1.1rem;
}
.hero-actions .btn-outline-red {
  padding: 13px 30px;
  font-size: 1.05rem;
}
.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  text-align: left;
}
.stat-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-red);
}
.stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary-red);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: #222222;
}
.stat-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Section Common */
.section-block {
  padding: 80px 0;
  position: relative;
}
.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 50px;
}
.section-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary-crimson);
  text-transform: uppercase;
  letter-spacing: 1px;
  background: rgba(217, 27, 36, 0.08);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.section-h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: #1a1a1a;
  margin-bottom: 14px;
  line-height: 1.3;
}
.section-sub {
  font-size: 1.05rem;
  color: var(--text-muted);
}

/* Platform Intro */
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
}
.intro-text-box {
  background: #ffffff;
  border: 1px solid var(--border-light);
  padding: 36px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.intro-h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 16px;
  line-height: 1.4;
}
.intro-p {
  font-size: 0.98rem;
  color: #444;
  margin-bottom: 20px;
  line-height: 1.8;
}
.feature-checklist {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 20px;
}
.feature-checklist li {
  display: flex;
  align-items: center;
  font-size: 0.92rem;
  font-weight: 500;
  color: #333;
}
.feature-checklist li::before {
  content: "✓";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: #ffebe9;
  color: var(--primary-red);
  font-weight: bold;
  border-radius: 50%;
  margin-right: 8px;
  font-size: 0.8rem;
}
.intro-visual-box {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: var(--shadow-sm);
}
.intro-visual-box img {
  border-radius: var(--radius-md);
  width: 100%;
}

/* Model Chips */
.models-ticker-wrap {
  margin-top: 40px;
  padding: 24px;
  background: #ffffff;
  border: 1px dashed var(--primary-red);
  border-radius: var(--radius-md);
}
.models-ticker-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--primary-crimson);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.model-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.model-badge {
  background: #fff3f2;
  color: var(--primary-crimson);
  border: 1px solid rgba(217, 27, 36, 0.2);
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--transition);
}
.model-badge:hover {
  background: var(--primary-red);
  color: #ffffff;
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.service-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary-red);
  box-shadow: var(--shadow-hover);
}
.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #ffe5e4 0%, #fff0e9 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
  color: var(--primary-red);
}
.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #111;
  margin-bottom: 10px;
}
.service-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}
.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.service-tags span {
  font-size: 0.78rem;
  background: #f7f7f7;
  color: #555;
  padding: 3px 8px;
  border-radius: 4px;
}

/* Workflow Steps */
.workflow-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.step-item {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 26px 20px;
  position: relative;
  box-shadow: var(--shadow-sm);
}
.step-item::after {
  content: "→";
  position: absolute;
  right: -14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem;
  color: var(--primary-red);
  font-weight: bold;
  z-index: 2;
}
.step-item:last-child::after {
  display: none;
}
.step-num-badge {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--primary-red);
  background: #fdeee8;
  display: inline-block;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 12px;
}
.step-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #222;
  margin-bottom: 8px;
}
.step-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Comparison Section */
.compare-box {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}
.compare-hero-metric {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(135deg, #fff5f5 0%, #fff8f4 100%);
  border: 1px solid var(--border-light);
  padding: 24px 30px;
  border-radius: var(--radius-md);
  margin-bottom: 30px;
}
.rating-block h4 {
  font-size: 1.25rem;
  font-weight: 800;
  color: #1a1a1a;
  margin-bottom: 6px;
}
.stars-display {
  color: #ff9800;
  font-size: 1.3rem;
  letter-spacing: 2px;
}
.score-badge {
  text-align: right;
}
.score-big {
  font-size: 3rem;
  font-weight: 900;
  color: var(--primary-red);
  line-height: 1;
}
.score-total {
  font-size: 1rem;
  color: #777;
  font-weight: 600;
}
.table-responsive {
  width: 100%;
  overflow-x: auto;
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  min-width: 680px;
}
.compare-table th,
.compare-table td {
  padding: 16px 20px;
  border-bottom: 1px solid #f0f0f0;
}
.compare-table th {
  background: #fafafa;
  font-size: 0.95rem;
  font-weight: 700;
  color: #222;
}
.compare-table th.col-highlight {
  background: #ffeceb;
  color: var(--primary-crimson);
}
.compare-table td.col-highlight {
  background: #fff8f8;
  font-weight: 600;
  color: var(--primary-crimson);
}
.compare-table tr:hover td {
  background-color: #faf7f7;
}

/* Cases Grid */
.cases-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.case-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.case-image-holder {
  width: 100%;
  height: 280px;
  background: #f0f0f0;
  overflow: hidden;
}
.case-image-holder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.case-card:hover .case-image-holder img {
  transform: scale(1.03);
}
.case-body {
  padding: 24px;
}
.case-badge {
  font-size: 0.8rem;
  background: #fff2f1;
  color: var(--primary-crimson);
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 10px;
}
.case-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 10px;
}
.case-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Media Banner Row */
.media-showcase-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 30px;
}
.media-showcase-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  background: #fff;
  height: 160px;
}
.media-showcase-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Reviews Grid */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.review-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 26px;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: var(--transition);
}
.review-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-red);
  box-shadow: var(--shadow-hover);
}
.reviewer-profile {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.reviewer-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-red) 0%, var(--secondary-amber) 100%);
  color: #ffffff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}
.reviewer-meta h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #222;
}
.reviewer-meta p {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.review-text {
  font-size: 0.92rem;
  color: #444;
  line-height: 1.7;
}

/* FAQ Accordion */
.faq-container {
  max-width: 900px;
  margin: 0 auto;
}
.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.faq-question {
  width: 100%;
  text-align: left;
  background: #ffffff;
  border: none;
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 700;
  color: #222;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: var(--transition);
}
.faq-question:hover {
  color: var(--primary-red);
}
.faq-arrow {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--primary-red);
  transition: transform 0.3s ease;
}
.faq-item.active .faq-arrow {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease;
  background: #fffcfb;
  padding: 0 24px;
  font-size: 0.95rem;
  color: #555;
  line-height: 1.75;
}
.faq-item.active .faq-answer {
  padding: 0 24px 20px 24px;
}

/* Articles Section */
.articles-box {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}
.articles-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 32px;
}
.article-dynamic-slot {
  background: #fff9f8;
  border: 1px dashed var(--primary-red);
  border-radius: var(--radius-md);
  padding: 24px;
  font-size: 0.95rem;
  color: #444;
}
.latest-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.latest-link-item a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: #fbfbfb;
  border: 1px solid #eee;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
  color: #333;
}
.latest-link-item a:hover {
  border-color: var(--primary-red);
  color: var(--primary-red);
  background: #fff4f3;
  transform: translateX(4px);
}

/* Form & Contact Area */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 36px;
}
.form-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 8px;
}
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #dcdcdc;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  color: #222;
  background: #fefefe;
  outline: none;
  transition: var(--transition);
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--primary-red);
  box-shadow: 0 0 0 3px rgba(217, 27, 36, 0.12);
  background: #ffffff;
}
.form-textarea {
  resize: vertical;
  min-height: 110px;
}
.contact-info-panel {
  background: linear-gradient(145deg, #ffffff 0%, #fff7f6 100%);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.contact-item {
  margin-bottom: 20px;
}
.contact-item-title {
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
  margin-bottom: 4px;
}
.contact-item-val {
  font-size: 1.15rem;
  font-weight: 700;
  color: #1a1a1a;
}
.qr-box {
  display: flex;
  align-items: center;
  gap: 20px;
  background: #ffffff;
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
}
.qr-img-wrapper {
  width: 90px;
  height: 90px;
  flex-shrink: 0;
}
.qr-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 4px;
}
.qr-text h5 {
  font-size: 1rem;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 4px;
}
.qr-text p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Footer Links & Foot */
.site-footer {
  background: #181818;
  color: #b0b0b0;
  padding: 60px 0 30px;
  border-top: 4px solid var(--primary-red);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}
.footer-brand-title {
  font-size: 1.4rem;
  color: #ffffff;
  font-weight: 800;
  margin-bottom: 14px;
}
.footer-brand-p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: #999;
}
.footer-col h5 {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 8px;
}
.footer-col h5::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 2px;
  background: var(--primary-red);
}
.footer-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-list a {
  color: #a0a0a0;
  font-size: 0.88rem;
}
.footer-list a:hover {
  color: #ffffff;
  padding-left: 4px;
}
.friend-links-wrap {
  border-top: 1px solid #2a2a2a;
  padding-top: 24px;
  margin-bottom: 24px;
}
.friend-links-title {
  font-size: 0.88rem;
  color: #888;
  margin-bottom: 12px;
  font-weight: 600;
}
.friend-links-items {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.friend-links-items a {
  color: #999;
  font-size: 0.85rem;
}
.friend-links-items a:hover {
  color: #ff5252;
}
.footer-bottom-copy {
  border-top: 1px solid #262626;
  padding-top: 24px;
  text-align: center;
  font-size: 0.82rem;
  color: #777;
}

/* Floating Tools */
.floating-aside {
  position: fixed;
  right: 20px;
  bottom: 40px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 999;
}
.float-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #ffffff;
  border: 1px solid var(--border-light);
  box-shadow: 0 4px 14px rgba(0,0,0,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-red);
  font-size: 1.2rem;
  cursor: pointer;
  transition: var(--transition);
}
.float-btn:hover {
  background: var(--primary-red);
  color: #ffffff;
  transform: scale(1.08);
}
.float-btn.back-to-top {
  display: none;
}

/* Responsive */
@media (max-width: 992px) {
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .intro-grid,
  .cases-grid,
  .articles-layout,
  .contact-wrapper {
    grid-template-columns: 1fr;
  }
  .services-grid,
  .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .workflow-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .step-item::after {
    display: none;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: #ffffff;
    flex-direction: column;
    padding: 20px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.08);
    border-bottom: 1px solid var(--border-light);
  }
  .nav-links.active {
    display: flex;
  }
  .nav-links a {
    width: 100%;
    padding: 12px 16px;
  }
  .mobile-toggle {
    display: block;
  }
}
@media (max-width: 640px) {
  .hero-title {
    font-size: 1.8rem;
  }
  .hero-stats-grid,
  .services-grid,
  .reviews-grid,
  .workflow-row,
  .media-showcase-row {
    grid-template-columns: 1fr;
  }
  .feature-checklist {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .compare-hero-metric {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
}