:root {
  --color-primary: #D85A30;
  --color-primary-dark: #993C1D;
  --color-primary-light: #FAECE7;
  --color-primary-lighter: #FDF6F3;
  --color-dark: #2C2C2A;
  --color-dark-medium: #444441;
  --color-gray: #666;
  --color-gray-light: #999;
  --color-bg: #F8F7F4;
  --color-bg-dark: #262624;
  --color-white: #FFFFFF;
  --color-border: #E8E6E0;
  --color-blue: #378ADD;
  --color-blue-light: #E6F1FB;
  --color-teal: #1D9E75;
  --color-teal-light: #E1F5EE;
  --color-amber: #BA7517;
  --color-amber-light: #FAEEDA;
  --container-width: 1200px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-card: 0 2px 12px rgba(44, 44, 42, 0.06);
  --shadow-card-hover: 0 6px 24px rgba(44, 44, 42, 0.12);
  --transition: all 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-dark);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

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

ul {
  list-style: none;
}

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

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Top Bar (电话条) ---------- */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1001;
  background: linear-gradient(135deg, #2C2C2A 0%, #1a1a18 100%);
  color: #fff;
  font-size: 13px;
  height: 40px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

.topbar-left,
.topbar-right {
  display: flex;
  align-items: center;
  gap: 24px;
}

.topbar-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1;
}

.topbar-icon {
  font-size: 14px;
  filter: saturate(0.9);
}

.topbar-phone {
  color: #FFB088;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.5px;
  font-family: -apple-system, "Helvetica Neue", Arial, sans-serif;
  transition: var(--transition);
  text-decoration: none;
}

.topbar-phone:hover {
  color: #fff;
}

.topbar-phone:hover {
  color: #FFF0E8;
}

.topbar-phone:hover {
  color: #FFD5B8;
  text-shadow: 0 0 8px rgba(255, 176, 136, 0.4);
}

.topbar-wechat {
  color: rgba(255, 255, 255, 0.7);
  font-size: 12px;
  padding-left: 12px;
  border-left: 1px solid rgba(255, 255, 255, 0.15);
}

.topbar-feature {
  color: #FFB088;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.3px;
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 40px;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

.nav-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-dark);
}

.nav-logo-mark {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 16px;
  font-weight: 700;
}

.nav-logo small {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: var(--color-gray-light);
  line-height: 1.2;
}

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

.nav-link {
  font-size: 15px;
  color: var(--color-gray);
  position: relative;
  padding: 4px 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
  font-weight: 600;
}

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

.nav-cta {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 14px;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  transition: var(--transition);
}

.nav-cta:hover {
  background: var(--color-primary-dark);
}

/* 主导航中间的电话块 */
.nav-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 40px;
  padding: 0 16px;
  border-left: 1px solid var(--color-border);
}

.nav-phone-icon {
  font-size: 20px;
}

.nav-phone-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.nav-phone-label {
  font-size: 11px;
  color: var(--color-text-muted);
  letter-spacing: 0.5px;
}

.nav-phone-number {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: 0.3px;
  transition: var(--transition);
}

.nav-phone-number:hover {
  color: rgba(255, 255, 255, 0.85);
}

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

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-dark);
  transition: var(--transition);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 12px 32px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-align: center;
}

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

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(216, 90, 48, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

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

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

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.btn-lg {
  padding: 14px 40px;
  font-size: 16px;
}

/* ---------- Hero ---------- */
.hero {
  padding: 200px 0 100px;
  background: linear-gradient(160deg, #FDF6F3 0%, #FAECE7 50%, #F5DDD3 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -100px;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(216, 90, 48, 0.08) 0%, transparent 70%);
}

.hero-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
}

.hero-badge {
  display: inline-block;
  background: rgba(216, 90, 48, 0.12);
  color: var(--color-primary-dark);
  font-size: 13px;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 20px;
  font-weight: 500;
}

.hero-title {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-dark);
  margin-bottom: 18px;
}

.hero-title em {
  font-style: normal;
  color: var(--color-primary);
}

.hero-subtitle {
  font-size: 17px;
  color: var(--color-gray);
  margin-bottom: 32px;
  max-width: 520px;
}

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

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
}

.hero-stat-item {
  text-align: left;
}

.hero-stat-num {
  font-size: 30px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}

.hero-stat-label {
  font-size: 13px;
  color: var(--color-gray);
  margin-top: 4px;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: 0 20px 60px rgba(153, 60, 29, 0.12);
  width: 100%;
  max-width: 420px;
}

.hero-card-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--color-dark);
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-card-title::before {
  content: "";
  width: 4px;
  height: 16px;
  background: var(--color-primary);
  border-radius: 2px;
}

.hero-card-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px dashed var(--color-border);
}

.hero-card-item:last-child {
  border-bottom: none;
}

.hero-card-item-name {
  font-size: 14px;
  color: var(--color-dark);
  font-weight: 500;
}

.hero-card-item-tag {
  font-size: 12px;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  padding: 3px 10px;
  border-radius: 4px;
}

/* ---------- Section Headers ---------- */
.section {
  padding: 90px 0;
}

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

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 4px 14px;
  border-radius: 4px;
  margin-bottom: 14px;
  font-weight: 500;
  letter-spacing: 1px;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 14px;
}

.section-desc {
  font-size: 15px;
  color: var(--color-gray);
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- Product Cards ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.product-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  border: 1px solid var(--color-border);
}

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

.product-card-visual {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 12px;
  position: relative;
}

.product-card-visual.v-blue {
  background: linear-gradient(135deg, #E6F1FB, #B5D4F4);
}

.product-card-visual.v-coral {
  background: linear-gradient(135deg, #FAECE7, #F5C4B3);
}

.product-card-visual.v-teal {
  background: linear-gradient(135deg, #E1F5EE, #9FE1CB);
}

.product-card-visual.v-amber {
  background: linear-gradient(135deg, #FAEEDA, #FAC775);
}

.product-card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.product-card-tag {
  font-size: 12px;
  color: var(--color-gray);
  background: rgba(255, 255, 255, 0.8);
  padding: 2px 10px;
  border-radius: 4px;
}

.product-card-body {
  padding: 24px;
}

.product-card-title {
  font-size: 19px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 10px;
}

.product-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.product-card-tags span {
  font-size: 12px;
  color: var(--color-gray);
  background: var(--color-bg);
  padding: 3px 10px;
  border-radius: 4px;
}

.product-card-desc {
  font-size: 14px;
  color: var(--color-gray);
  margin-bottom: 18px;
  line-height: 1.6;
}

.product-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--color-primary);
  font-weight: 500;
}

.product-card-link:hover {
  gap: 10px;
}

/* ---------- Factory Stats ---------- */
.stats-section {
  background: var(--color-bg-dark);
  padding: 70px 0;
}

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

.stat-item {
  text-align: center;
}

.stat-num {
  font-size: 42px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
}

/* ---------- Process Timeline ---------- */
.process-timeline {
  display: flex;
  justify-content: space-between;
  position: relative;
  gap: 16px;
}

.process-timeline::before {
  content: "";
  position: absolute;
  top: 28px;
  left: 40px;
  right: 40px;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--color-border) 0 8px, transparent 8px 16px);
}

.process-step {
  flex: 1;
  text-align: center;
  position: relative;
  z-index: 1;
}

.process-step-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-white);
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  transition: var(--transition);
}

.process-step:hover .process-step-num {
  background: var(--color-primary);
  color: var(--color-white);
}

.process-step-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.process-step-desc {
  font-size: 13px;
  color: var(--color-gray);
  max-width: 150px;
  margin: 0 auto;
  line-height: 1.6;
}

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

.advantage-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
}

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

.advantage-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin: 0 auto 18px;
}

.advantage-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 10px;
}

.advantage-desc {
  font-size: 13px;
  color: var(--color-gray);
  line-height: 1.6;
}

/* ---------- Cases ---------- */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.case-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.case-card-visual {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 10px;
}

.case-card-body {
  padding: 22px;
}

.case-card-tag {
  display: inline-block;
  font-size: 12px;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 10px;
}

.case-card-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.case-card-desc {
  font-size: 13px;
  color: var(--color-gray);
  line-height: 1.6;
}

/* ---------- CTA Section ---------- */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  padding: 70px 0;
  text-align: center;
}

.cta-title {
  font-size: 30px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 14px;
}

.cta-desc {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 32px;
}

/* ---------- Page Banner ---------- */
.page-banner {
  padding: 180px 0 70px;
  background: linear-gradient(160deg, #FDF6F3, #FAECE7);
  text-align: center;
}

.page-banner-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 12px;
}

.page-banner-desc {
  font-size: 15px;
  color: var(--color-gray);
  max-width: 560px;
  margin: 0 auto;
}

.page-breadcrumb {
  margin-top: 20px;
  font-size: 13px;
  color: var(--color-gray-light);
}

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

/* ---------- About Page ---------- */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-intro-text h3 {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 20px;
}

.about-intro-text p {
  font-size: 15px;
  color: var(--color-gray);
  margin-bottom: 16px;
  line-height: 1.8;
}

.about-intro-visual {
  background: linear-gradient(135deg, var(--color-primary-light), #F5DDD3);
  border-radius: var(--radius-lg);
  height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 12px;
  color: var(--color-primary-dark);
}

.about-intro-visual .placeholder-icon {
  font-size: 56px;
  opacity: 0.5;
}

.about-intro-visual .placeholder-text {
  font-size: 14px;
  opacity: 0.7;
}

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

.factory-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  transition: var(--transition);
}

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

.factory-item-visual {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 10px;
  font-size: 40px;
  opacity: 0.6;
}

.factory-item-visual small {
  font-size: 13px;
  opacity: 0.8;
}

.factory-item-body {
  padding: 18px;
}

.factory-item-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 6px;
}

.factory-item-desc {
  font-size: 13px;
  color: var(--color-gray);
  line-height: 1.6;
}

.timeline-vertical {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
}

.timeline-vertical::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-left: 60px;
  margin-bottom: 40px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: 12px;
  top: 6px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-white);
  border: 3px solid var(--color-primary);
}

.timeline-year {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.timeline-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 6px;
}

.timeline-desc {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.7;
}

/* ---------- Products Page ---------- */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 9px 24px;
  border-radius: 100px;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-gray);
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.filter-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.product-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.product-spec {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-top: 18px;
}

.product-spec-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-border);
  font-size: 13px;
}

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

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

.product-spec-row .spec-value {
  color: var(--color-dark);
  font-weight: 500;
}

/* ---------- Customization Page ---------- */
.custom-step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  padding: 32px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
  transition: var(--transition);
}

.custom-step:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-card-hover);
}

.custom-step-num {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 26px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.custom-step-title {
  font-size: 19px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.custom-step-desc {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.7;
}

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

.info-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.info-card-icon {
  font-size: 32px;
  margin-bottom: 16px;
}

.info-card-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 12px;
}

.info-card-desc {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.7;
}

/* ---------- Contact Page ---------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}

.inquiry-form {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.form-group {
  margin-bottom: 22px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.form-label .required {
  color: var(--color-primary);
  margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: var(--font-sans);
  color: var(--color-dark);
  background: var(--color-white);
  transition: var(--transition);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(216, 90, 48, 0.1);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-submit {
  width: 100%;
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  padding: 14px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
}

.form-submit:hover {
  background: var(--color-primary-dark);
}

.contact-info-card {
  background: var(--color-bg-dark);
  border-radius: var(--radius-lg);
  padding: 40px;
  color: var(--color-white);
}

.contact-info-card h3 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 28px;
}

.contact-info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 26px;
}

.contact-info-item:last-child {
  margin-bottom: 0;
}

.contact-info-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.contact-info-label {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 4px;
}

.contact-info-value {
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
}

.map-placeholder {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 12px;
  color: var(--color-gray);
}

/* ---------- Footer ---------- */
.footer {
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 70px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 50px;
}

.footer-brand-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
}

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 24px;
}

.footer-qr {
  width: 110px;
  height: 110px;
  background: var(--color-white);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--color-gray);
  text-align: center;
  line-height: 1.4;
}

.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 20px;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
}

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

.footer-contact-item {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.6;
}

.footer-contact-item span:first-child {
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
}

/* ---------- Animations ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.fade-up:nth-child(2) {
  transition-delay: 0.1s;
}

.fade-up:nth-child(3) {
  transition-delay: 0.2s;
}

.fade-up:nth-child(4) {
  transition-delay: 0.3s;
}

/* ---------- Form Alert ---------- */
.form-alert {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  margin-bottom: 20px;
  display: none;
}

.form-alert.success {
  display: block;
  background: var(--color-teal-light);
  color: var(--color-teal);
}

.form-alert.error {
  display: block;
  background: #FCEBEB;
  color: #A32D2D;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 34px;
  }

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

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

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

@media (max-width: 768px) {
  .topbar {
    height: auto;
    padding: 6px 0;
    font-size: 12px;
  }
  .topbar-inner {
    flex-direction: column;
    gap: 4px;
  }
  .topbar-left,
  .topbar-right {
    flex-direction: column;
    align-items: center;
    gap: 4px;
  }
  .topbar-right {
    display: none;
  }

  .nav-phone {
    display: none;
  }
  .topbar-wechat {
    padding-left: 0;
    border-left: none;
  }
  .topbar-phone {
    font-size: 15px;
  }

  .nav-menu {
    position: fixed;
    top: 112px;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    padding: 24px;
    gap: 0;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-menu .nav-link {
    padding: 14px 8px;
    border-bottom: 1px solid var(--color-border);
    font-size: 15px;
  }

  .nav-menu .nav-cta {
    margin-top: 16px;
    text-align: center;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding: 160px 0 70px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-title {
    font-size: 28px;
  }

  .hero-stats {
    gap: 24px;
  }

  .product-grid,
  .product-detail-grid,
  .case-grid,
  .factory-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 16px;
  }

  .process-timeline {
    flex-direction: column;
    gap: 32px;
    align-items: flex-start;
  }

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

  .process-step {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    text-align: left;
  }

  .process-step-num {
    margin: 0;
    flex-shrink: 0;
  }

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

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

  .info-cards {
    grid-template-columns: 1fr;
  }

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 26px;
  }

  .page-banner {
    padding: 150px 0 50px;
  }

  .inquiry-form {
    padding: 28px 20px;
  }

  .custom-step {
    grid-template-columns: 1fr;
    padding: 24px;
  }
}

/* ---------- Real photo visuals ---------- */
.product-card-visual img,
.case-card-visual img,
.factory-item-visual img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.case-card-visual,
.factory-item-visual {
  position: relative;
  overflow: hidden;
}

.visual-tag {
  position: absolute;
  left: 12px;
  bottom: 12px;
  z-index: 2;
  font-size: 12px;
  color: var(--color-gray);
  background: rgba(255, 255, 255, 0.9);
  padding: 2px 10px;
  border-radius: 4px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12);
}

.about-intro-visual {
  overflow: hidden;
}

.about-intro-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.factory-item-visual img {
  transition: transform 0.5s ease;
}

.factory-item:hover .factory-item-visual img,
.case-card:hover .case-card-visual img,
.product-card:hover .product-card-visual img {
  transform: scale(1.05);
}