/* ===== CSS Variables ===== */
:root {
  --primary: #E8910C;
  --primary-light: #F5A623;
  --primary-dark: #C77A00;
  --primary-bg: #FFF8ED;
  --gold: #D4A84B;
  --white: #FFFFFF;
  --bg: #FAFAF8;
  --bg-warm: #F5F0E8;
  --gray-100: #F5F5F3;
  --gray-200: #E8E6E3;
  --gray-400: #9E9B97;
  --gray-600: #5C5A57;
  --gray-800: #2D2B28;
  --text: #3D3B38;
  --text-light: #6B6966;
  --shadow: 0 4px 24px rgba(45, 43, 40, 0.08);
  --shadow-hover: 0 12px 40px rgba(232, 145, 12, 0.15);
  --radius: 12px;
  --radius-lg: 20px;
  --header-h: 72px;
  --transition: 0.3s ease;
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

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

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  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;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  color: var(--white);
  box-shadow: 0 4px 16px rgba(232, 145, 12, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232, 145, 12, 0.45);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.8);
}

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

.btn-sm {
  padding: 10px 24px;
  font-size: 0.875rem;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
  transition: box-shadow var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--gray-800);
}

.logo-icon {
  width: 36px;
  height: 36px;
}

.logo-text {
  background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-list {
  display: flex;
  gap: 8px;
}

.nav-link {
  padding: 8px 16px;
  font-size: 0.95rem;
  color: var(--text);
  border-radius: 8px;
  transition: all var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
  background: var(--primary-bg);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--gray-800);
  border-radius: 2px;
  transition: all var(--transition);
}

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

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

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

/* ===== Hero ===== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  margin-top: 0;
  overflow: hidden;
}

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

.hero-slide {
  position: absolute;
  inset: 0;
  background-color: #3D3530;
  background-image: linear-gradient(135deg, #4A3F35 0%, #2D2B28 50%, #5C4A32 100%);
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1s ease;
  display: flex;
  align-items: center;
}

.hero-slide.active {
  opacity: 1;
  z-index: 1;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    135deg,
    rgba(45, 35, 20, 0.75) 0%,
    rgba(45, 35, 20, 0.45) 50%,
    rgba(232, 145, 12, 0.25) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  color: var(--white);
  max-width: 700px;
  padding-top: var(--header-h);
  opacity: 1;
  visibility: visible;
}

.hero-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(245, 166, 35, 0.25);
  border: 1px solid rgba(245, 166, 35, 0.5);
  border-radius: 50px;
  font-size: 0.875rem;
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 500;
  margin-bottom: 12px;
  opacity: 0.95;
}

.hero-desc {
  font-size: 1rem;
  opacity: 0.85;
  margin-bottom: 36px;
  line-height: 1.8;
}

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

.hero-dots {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}

.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--white);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition);
  padding: 0;
}

.hero-dot.active,
.hero-dot:hover {
  background: var(--primary-light);
  border-color: var(--primary-light);
  transform: scale(1.2);
}

.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(4px);
  color: var(--white);
  font-size: 1.8rem;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.hero-arrow:hover {
  background: var(--primary);
}

.hero-prev { left: 24px; }
.hero-next { right: 24px; }

/* ===== Sections ===== */
.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--primary);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--gray-800);
  margin-bottom: 12px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-light);
  max-width: 560px;
  margin: 0 auto;
}

/* ===== Services ===== */
.section-services {
  background: var(--white);
}

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

.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border: 1px solid var(--gray-100);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(232, 145, 12, 0.2);
}

.service-img {
  position: relative;
  height: 200px;
  overflow: hidden;
}

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

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

.service-duration {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background: rgba(0, 0, 0, 0.6);
  color: var(--white);
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
}

.service-body {
  padding: 20px;
}

.service-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 8px;
}

.service-intro {
  font-size: 0.875rem;
  color: var(--text-light);
  margin-bottom: 10px;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.service-feature {
  font-size: 0.8rem;
  color: var(--primary);
  margin-bottom: 16px;
}

/* ===== Process ===== */
.section-process {
  background: var(--bg-warm);
}

.process-timeline {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  position: relative;
}

.process-timeline::before {
  content: "";
  position: absolute;
  top: 48px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-light), var(--gold), var(--primary-light));
  opacity: 0.3;
}

.process-step {
  text-align: center;
  position: relative;
}

.process-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  background: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  color: var(--primary);
  position: relative;
  z-index: 1;
  transition: all var(--transition);
}

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

.process-step:hover .process-icon {
  background: var(--primary);
  color: var(--white);
  transform: scale(1.1);
}

.process-num {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.process-step h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 6px;
}

.process-step p {
  font-size: 0.8rem;
  color: var(--text-light);
}

/* ===== Advantages ===== */
.section-advantages {
  background: var(--white);
}

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

.advantage-card {
  text-align: center;
  padding: 36px 24px;
  background: var(--bg);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  border: 1px solid transparent;
}

.advantage-card:hover {
  background: var(--primary-bg);
  border-color: rgba(232, 145, 12, 0.2);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.advantage-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.advantage-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 8px;
}

.advantage-card p {
  font-size: 0.875rem;
  color: var(--text-light);
}

/* ===== Team ===== */
.section-team {
  background: var(--bg-warm);
}

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

.team-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}

.team-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.team-avatar {
  position: relative;
  width: 120px;
  height: 120px;
  margin: 0 auto 16px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--primary-bg);
}

.team-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-badge {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: var(--white);
  font-size: 0.65rem;
  padding: 2px 10px;
  border-radius: 50px;
  white-space: nowrap;
}

.team-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 4px;
}

.team-exp {
  font-size: 0.85rem;
  color: var(--primary);
  margin-bottom: 8px;
}

.team-skill {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-bottom: 12px;
}

.team-rating {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.stars {
  color: var(--gold);
  font-size: 0.85rem;
  letter-spacing: 1px;
}

.score {
  font-weight: 700;
  color: var(--gray-800);
  font-size: 0.9rem;
}

/* ===== Guarantee ===== */
.section-guarantee {
  background: linear-gradient(135deg, var(--gray-800) 0%, #3D3530 100%);
  color: var(--white);
}

.section-guarantee .section-tag {
  color: var(--primary-light);
}

.section-guarantee .section-title {
  color: var(--white);
}

.section-guarantee .section-desc {
  color: rgba(255, 255, 255, 0.7);
}

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

.guarantee-item {
  display: flex;
  gap: 16px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all var(--transition);
}

.guarantee-item:hover {
  background: rgba(232, 145, 12, 0.15);
  border-color: rgba(232, 145, 12, 0.3);
}

.guarantee-check {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
}

.guarantee-item h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.guarantee-item p {
  font-size: 0.875rem;
  opacity: 0.75;
}

/* ===== Areas ===== */
.section-areas {
  background: var(--white);
}

.areas-grid {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
}

.area-card {
  flex: 0 0 180px;
  text-align: center;
  padding: 32px 20px;
  background: var(--bg);
  border-radius: var(--radius-lg);
  border: 2px solid transparent;
  transition: all var(--transition);
}

.area-card:hover {
  border-color: var(--primary);
  background: var(--primary-bg);
  transform: translateY(-4px);
}

.area-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 12px;
}

.area-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 4px;
}

.area-card p {
  font-size: 0.85rem;
  color: var(--text-light);
}

.area-more {
  background: linear-gradient(135deg, var(--primary-bg), var(--bg-warm));
}

/* ===== About ===== */
.section-about {
  background: var(--bg-warm);
}

.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

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

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

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

.about-intro {
  font-size: 1.05rem;
  color: var(--text-light);
  line-height: 1.9;
  margin-bottom: 32px;
}

.about-items {
  display: grid;
  gap: 16px;
}

.about-item {
  padding: 16px 20px;
  background: var(--white);
  border-radius: var(--radius);
  border-left: 4px solid var(--primary);
}

.about-item h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 4px;
}

.about-item p {
  font-size: 0.875rem;
  color: var(--text-light);
}

/* ===== Contact ===== */
.section-contact {
  background: var(--white);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-item {
  display: flex;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--gray-200);
}

.contact-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--primary-bg);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-item h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 4px;
}

.contact-link {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
}

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

.contact-item p {
  font-size: 0.95rem;
  color: var(--gray-800);
}

.contact-qr {
  display: flex;
  gap: 24px;
  justify-content: center;
}

.qr-card {
  text-align: center;
  padding: 24px;
  background: var(--bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
}

.qr-card img {
  width: 160px;
  height: 160px;
  margin: 0 auto 12px;
  border-radius: 8px;
}

.qr-card p {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gray-800);
}

/* ===== Footer ===== */
.footer {
  background: var(--gray-800);
  color: rgba(255, 255, 255, 0.8);
  padding: 60px 0 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  width: 48px;
  height: 48px;
  margin-bottom: 12px;
}

.footer-brand h3 {
  font-size: 1.25rem;
  color: var(--white);
  margin-bottom: 8px;
}

.footer-brand p {
  font-size: 0.875rem;
  opacity: 0.7;
}

.footer-links h4 {
  font-size: 0.95rem;
  color: var(--white);
  margin-bottom: 16px;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 0.875rem;
  opacity: 0.7;
  transition: opacity var(--transition);
}

.footer-links a:hover {
  opacity: 1;
  color: var(--primary-light);
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 0.8rem;
  opacity: 0.6;
}

.footer-bottom p {
  margin-bottom: 8px;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.8);
}

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

.divider {
  margin: 0 8px;
  opacity: 0.4;
}

/* ===== Back to Top ===== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(232, 145, 12, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition);
  z-index: 999;
}

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

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-4px);
}

/* ===== Modal ===== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 400px;
  width: 90%;
  text-align: center;
  transform: scale(0.9);
  transition: transform var(--transition);
  z-index: 1;
}

.modal.active .modal-content {
  transform: scale(1);
}

.modal-content h3 {
  font-size: 1.25rem;
  margin-bottom: 20px;
  color: var(--gray-800);
}

.modal-content img {
  width: 200px;
  height: 200px;
  margin: 0 auto 16px;
  border-radius: 8px;
}

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

.modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-light);
  line-height: 1;
  padding: 4px;
}

.modal-close:hover {
  color: var(--gray-800);
}

.modal-text {
  max-width: 560px;
  text-align: left;
}

.modal-body {
  max-height: 400px;
  overflow-y: auto;
}

.modal-body p {
  margin-bottom: 12px;
  line-height: 1.8;
}

/* ===== Scroll Animation ===== */
.fade-in {
  opacity: 1;
  transform: translateY(0);
}

html.js-ready .fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== ???? ===== */
.section-intro {
  background: var(--white);
  padding: 72px 0;
  border-bottom: 1px solid var(--gray-200);
}

.intro-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.intro-badge {
  display: inline-block;
  padding: 6px 14px;
  background: var(--primary-bg);
  color: var(--primary);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.intro-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--gray-800);
  margin-bottom: 16px;
  line-height: 1.4;
}

.intro-text {
  font-size: 1rem;
  color: var(--text-light);
  line-height: 1.9;
  margin-bottom: 16px;
}

.intro-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.intro-highlight {
  padding: 8px 16px;
  background: var(--bg);
  border-radius: 50px;
  font-size: 0.875rem;
  color: var(--gray-800);
  border: 1px solid var(--gray-200);
}

.intro-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.intro-stat {
  text-align: center;
  padding: 28px 16px;
  background: linear-gradient(145deg, var(--primary-bg), var(--white));
  border-radius: var(--radius-lg);
  border: 1px solid rgba(232, 145, 12, 0.15);
}

.intro-stat-num {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 6px;
}

.intro-stat-label {
  font-size: 0.9rem;
  color: var(--text-light);
}

.intro-features {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.intro-feature {
  padding: 24px;
  background: var(--bg-warm);
  border-radius: var(--radius);
  text-align: center;
}

.intro-feature-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.intro-feature h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 8px;
}

.intro-feature p {
  font-size: 0.875rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .process-timeline {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
  }

  .process-timeline::before {
    display: none;
  }

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

@media (max-width: 768px) {
  .intro-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .intro-features {
    grid-template-columns: 1fr;
  }

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

  :root {
    --header-h: 64px;
  }

  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition);
  }

  .nav.open {
    max-height: 400px;
  }

  .nav-list {
    flex-direction: column;
    padding: 16px 24px;
  }

  .nav-link {
    display: block;
    padding: 14px 16px;
  }

  .nav-toggle {
    display: flex;
  }

  .section {
    padding: 72px 0;
  }

  .hero {
    min-height: 520px;
  }

  .hero-arrow {
    display: none;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-buttons .btn {
    width: 100%;
    max-width: 280px;
  }

  .services-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

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

  .advantages-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .team-grid {
    grid-template-columns: 1fr;
    max-width: 320px;
    margin: 0 auto;
  }

  .guarantee-list {
    grid-template-columns: 1fr;
  }

  .about-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .about-image img {
    height: 280px;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }

  .contact-qr {
    flex-direction: column;
    align-items: center;
  }

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

  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
  }
}

@media (max-width: 480px) {
  .process-timeline {
    grid-template-columns: 1fr;
    max-width: 280px;
    margin: 0 auto;
  }

  .areas-grid {
    flex-direction: column;
    align-items: center;
  }

  .area-card {
    width: 100%;
    max-width: 280px;
  }
}