/* ============================================
   宁波森野户外用品有限公司 — Design System
   Outdoor · Natural · Casual
   ============================================ */

/* --- Design Tokens --- */
:root {
  --color-primary: #3a7d44;
  --color-primary-dark: #2d5a35;
  --color-primary-light: #5a9e6f;
  --color-secondary: #c8956c;
  --color-secondary-dark: #a67b52;
  --color-bg: #f8f5f0;
  --color-bg-alt: #eef4e9;
  --color-white: #ffffff;
  --color-dark: #2c3e2d;
  --color-text: #3a3a3a;
  --color-text-light: #666666;
  --color-text-muted: #999999;
  --color-border: #ddd8cd;
  --color-overlay: rgba(44, 62, 45, 0.55);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
  --shadow-nav: 0 2px 12px rgba(0, 0, 0, 0.06);

  --font-sans: "Noto Sans SC", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --container-max: 1200px;
  --nav-height: 72px;
}

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

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

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-dark);
  line-height: 1.3;
  font-weight: 700;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

.section-title {
  text-align: center;
  margin-bottom: 0.5rem;
  position: relative;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-light);
  font-size: 1rem;
  margin-bottom: 3rem;
}

.section-title::after {
  content: "";
  display: block;
  width: 48px;
  height: 3px;
  background: var(--color-primary);
  margin: 1rem auto 0;
  border-radius: 2px;
}

/* --- Layout --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

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

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background: transparent;
  box-shadow: none;
  z-index: 1000;
  transition: background-color 0.4s, box-shadow 0.4s;
}

.navbar.scrolled {
  background: var(--color-white);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.navbar-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 20px;
  font-weight: 700;
  color: #000;
  flex-shrink: 0;
}

.nav-logo-icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-logo-icon svg {
  width: 24px;
  height: 24px;
  fill: var(--color-white);
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  font-size: 20px;
  color: #000;
  padding: 0.5rem 0;
  position: relative;
  transition: color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
}

.nav-hamburger {
  display: none;
  width: 32px;
  height: 32px;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
}

.nav-hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-dark);
  border-radius: 1px;
  transition: transform 0.3s, opacity 0.3s;
}

.nav-hamburger.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile nav overlay */
.nav-mobile-overlay {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  width: 100%;
  height: calc(100vh - var(--nav-height));
  background: var(--color-white);
  z-index: 999;
  padding: 2rem 1.5rem;
  flex-direction: column;
  gap: 1.5rem;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 0.3s, transform 0.3s;
}

.nav-mobile-overlay.open {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}

.nav-mobile-overlay a {
  font-size: 1.2rem;
  color: var(--color-text);
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-border);
  transition: color 0.3s;
}

.nav-mobile-overlay a:hover,
.nav-mobile-overlay a.active {
  color: var(--color-primary);
}

/* --- Hero Banner (Image Slideshow) --- */
.hero {
  position: relative;
  width: 100%;
  height: 85vh;
  overflow: hidden;
}

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

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.2s ease-in-out;
}

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

.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* Hero arrows */
.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  backdrop-filter: blur(4px);
  transition: background 0.3s;
}

.hero-arrow:hover {
  background: rgba(255, 255, 255, 0.6);
}

.hero-arrow svg {
  width: 24px;
  height: 24px;
  fill: #fff;
}

.hero-arrow-prev {
  left: 2rem;
}

.hero-arrow-next {
  right: 2rem;
}

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

.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: background 0.3s, transform 0.3s;
}

.hero-dot:hover {
  background: rgba(255, 255, 255, 0.8);
}

.hero-dot.active {
  background: #fff;
  transform: scale(1.3);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: transform 0.3s, background-color 0.3s;
  cursor: pointer;
}

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

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

.btn-outline {
  background: rgba(255, 255, 255, 0.9);
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

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

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

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

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1rem;
}

/* --- Page Hero (sub-pages) --- */
.page-hero {
  min-height: 40vh;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: var(--nav-height);
  position: relative;
  background: var(--color-primary-dark);
  overflow: hidden;
}

.page-hero-bg {
  position: absolute;
  inset: 0;
  opacity: 0.3;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(90, 158, 111, 0.4), transparent 70%),
    radial-gradient(ellipse at 70% 50%, rgba(200, 149, 108, 0.3), transparent 70%);
}

.page-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2rem;
}

.page-hero-title {
  font-size: 2.5rem;
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.page-hero-desc {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.05rem;
}

/* --- Stats Section --- */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  padding: 3rem 0;
}

.stat-card {
  text-align: center;
  padding: 1.5rem;
}

.stat-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1rem;
  background: var(--color-bg-alt);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.5);
  transition: opacity 0.5s, transform 0.5s;
}

.stat-card.visible .stat-icon {
  opacity: 1;
  transform: scale(1);
}

.stat-icon svg {
  width: 28px;
  height: 28px;
  fill: var(--color-primary);
}

.stat-number {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.1;
}

.stat-number .stat-unit {
  font-size: 1.2rem;
  font-weight: 600;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-top: 0.5rem;
}

/* --- Product Categories --- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.5rem;
}

.category-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 2rem 1rem;
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: pointer;
}

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

.category-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1rem;
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.category-icon svg {
  width: 36px;
  height: 36px;
  fill: var(--color-primary);
}

.category-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 0.5rem;
}

.category-desc {
  font-size: 0.85rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

/* --- Product Showcase --- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.product-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s, box-shadow 0.3s;
}

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

.product-img {
  height: 220px;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

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

.product-img-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-primary);
}

.product-img-placeholder svg {
  width: 48px;
  height: 48px;
  fill: var(--color-primary);
  opacity: 0.5;
}

.product-img-placeholder span {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.product-tag {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  font-weight: 600;
}

.product-info {
  padding: 1.25rem;
}

.product-name {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 0.5rem;
}

.product-spec {
  font-size: 0.85rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

/* --- Advantages --- */
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.advantage-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative;
}

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

.advantage-icon {
  width: 52px;
  height: 52px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.advantage-icon svg {
  width: 28px;
  height: 28px;
  fill: var(--color-primary);
}

.advantage-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 0.75rem;
}

.advantage-text {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* --- News Section --- */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.news-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s, box-shadow 0.3s;
}

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

.news-img {
  height: 180px;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.news-img-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-primary);
}

.news-img-placeholder svg {
  width: 48px;
  height: 48px;
  fill: var(--color-primary);
  opacity: 0.5;
}

.news-img-placeholder span {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.news-info {
  padding: 1.5rem;
}

.news-date {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.news-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.news-desc {
  font-size: 0.85rem;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.news-link {
  font-size: 0.85rem;
  color: var(--color-primary);
  font-weight: 600;
  transition: color 0.3s;
}

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

/* --- CTA Section --- */
.cta-section {
  background: var(--color-primary-dark);
  padding: 4rem 0;
  text-align: center;
  position: relative;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 80%, rgba(90, 158, 111, 0.3), transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(200, 149, 108, 0.2), transparent 60%);
}

.cta-content {
  position: relative;
  z-index: 2;
}

.cta-title {
  color: var(--color-white);
  font-size: 2rem;
  margin-bottom: 1rem;
}

.cta-desc {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1rem;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-btns {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

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

.about-text h3 {
  margin-bottom: 1rem;
}

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

.about-img {
  height: 350px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
}

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

.about-img-placeholder {
  text-align: center;
  color: var(--color-primary);
  opacity: 0.6;
}

.about-img-placeholder svg {
  width: 80px;
  height: 80px;
  fill: var(--color-primary);
}

.about-img-placeholder span {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

/* Timeline */
.timeline {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-primary);
  border-radius: 2px;
}

.timeline-item {
  padding: 1.5rem 0;
  position: relative;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -2rem;
  top: 1.8rem;
  width: 12px;
  height: 12px;
  background: var(--color-primary);
  border-radius: 50%;
  transform: translateX(-4.5px);
}

.timeline-year {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
}

.timeline-text {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-top: 0.5rem;
}

/* Certifications */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.cert-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.cert-icon {
  font-size: 2rem;
  color: var(--color-secondary);
  margin-bottom: 0.75rem;
}

.cert-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-dark);
}

/* --- Products Page --- */
.product-filter {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.filter-btn {
  padding: 0.6rem 1.5rem;
  font-size: 0.9rem;
  border-radius: 8px;
  background: var(--color-white);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  transition: background-color 0.3s, color 0.3s, border-color 0.3s;
}

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

.product-full-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

/* --- Cases Page --- */
.case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.case-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s, box-shadow 0.3s;
}

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

.case-img {
  height: 260px;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.case-img-placeholder {
  text-align: center;
  color: var(--color-primary);
  opacity: 0.5;
}

.case-img-placeholder svg {
  width: 56px;
  height: 56px;
  fill: var(--color-primary);
}

.case-img-placeholder span {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 0.5rem;
  display: block;
}

.case-info {
  padding: 1.5rem;
}

.case-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 0.5rem;
}

.case-desc {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

.case-meta {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* Testimonials */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.testimonial-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  position: relative;
}

.testimonial-card::before {
  content: "\201C";
  position: absolute;
  top: 0.75rem;
  left: 1.5rem;
  font-size: 3rem;
  color: var(--color-primary);
  opacity: 0.2;
  line-height: 1;
}

.testimonial-text {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 1rem;
  padding-top: 1rem;
}

.testimonial-author {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-dark);
}

.testimonial-role {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* --- Contact Page --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-form-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-card);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 0.5rem;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.95rem;
  transition: border-color 0.3s;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
}

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

.contact-info-grid {
  display: grid;
  gap: 1.5rem;
}

.contact-info-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-info-icon svg {
  width: 22px;
  height: 22px;
  fill: var(--color-primary);
}

.contact-info-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 0.25rem;
}

.contact-info-text {
  font-size: 0.85rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

.map-placeholder {
  height: 220px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1.5rem;
  color: var(--color-primary);
  font-size: 0.9rem;
}

/* --- Footer --- */
.footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.85);
  padding: 3rem 0 1.5rem;
}

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

.footer-brand {
  margin-bottom: 1rem;
}

.footer-brand-name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.footer-brand-desc {
  font-size: 0.85rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
}

.footer-heading {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 1rem;
}

.footer-links a {
  display: block;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  padding: 0.35rem 0;
  transition: color 0.3s;
}

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

.footer-contact-item {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  padding: 0.35rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-contact-item svg {
  width: 16px;
  height: 16px;
  fill: rgba(255, 255, 255, 0.5);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
}

/* --- Floating Customer Service --- */
.float-service {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 900;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.float-item {
  width: 52px;
  height: 52px;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  transition: background-color 0.3s;
}

.float-item:hover {
  background: var(--color-primary-dark);
}

.float-item svg {
  width: 22px;
  height: 22px;
  fill: var(--color-white);
}

.float-item:first-child {
  border-radius: var(--radius-sm) 0 0 0;
}

.float-item:last-child {
  border-radius: 0 0 0 var(--radius-sm);
}

.float-tooltip {
  position: absolute;
  right: 60px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-white);
  padding: 1rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-hover);
  white-space: nowrap;
  display: none;
  font-size: 0.85rem;
  color: var(--color-text);
}

.float-tooltip::after {
  content: "";
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  border: 6px solid transparent;
  border-left-color: var(--color-white);
}

.float-tooltip.visible {
  display: block;
}

.float-wechat-qr {
  width: 140px;
  height: 140px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.float-wechat-qr svg {
  width: 40px;
  height: 40px;
  fill: var(--color-primary);
  opacity: 0.4;
}

.float-wechat-qr span {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* --- Scroll Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s, transform 0.6s;
}

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

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* --- Responsive: Tablet (768px) --- */
@media (max-width: 1200px) {
  .category-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .product-full-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }

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

  .cert-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }

  .section {
    padding: 3rem 0;
  }

  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .hero {
    height: 70vh;
  }

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

  .stat-number {
    font-size: 2rem;
  }

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

  .product-grid,
  .product-full-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

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

  .about-intro {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-img {
    height: 250px;
  }

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

  .news-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

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

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }

  .page-hero {
    min-height: 30vh;
  }

  .page-hero-title {
    font-size: 1.8rem;
  }

  .cta-title {
    font-size: 1.5rem;
  }

  .float-service {
    display: none;
  }
}

/* --- Responsive: Mobile (360px) --- */
@media (max-width: 480px) {
  .hero {
    height: 60vh;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .stats-row {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }

  .stat-number {
    font-size: 1.8rem;
  }

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

  .product-grid,
  .product-full-grid {
    grid-template-columns: 1fr;
  }

  .product-img {
    height: 180px;
  }

  .case-img {
    height: 200px;
  }

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

  .container {
    padding: 0 1rem;
  }

  .product-filter {
    gap: 0.5rem;
  }

  .filter-btn {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
  }
}