:root {
  --brand-primary: #c9a063;
  --brand-primary-dark: #b68d4d;
  --brand-secondary: #c9a063;
  --brand-secondary-dark: #b68d4d;
  --text-main: #111827;
  --text-secondary: #6b7280;
  --text-light: rgba(255, 255, 255, 0.82);
  --bg-light: #f8fafc;
  --bg-soft: #f6f3ff;
  --border-color: #e5e7eb;
  --shadow-sm: 0 6px 20px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 14px 35px rgba(0, 0, 0, 0.10);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.16);
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --transition: all 0.35s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text-main);
  background: #fff;
  padding-top: 78px;
  overflow-x: hidden;
}

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

a:hover {
  text-decoration: none;
}

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

ul,
ol {
  margin: 0;
  padding: 0;
}

input,
textarea,
button {
  outline: none;
}

.section-block {
  position: relative;
}

.bg-light {
  background-color: #f8fafc !important;
}

/* ===== 通用标题 ===== */
.section-heading {
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}

.section-heading .section-kicker {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--brand-primary);
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.2;
  font-weight: 800;
  color: var(--text-main);
}

/* ===== 按钮 ===== */
.btn-brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 170px;
  height: 52px;
  padding: 0 28px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-dark) 100%);
  color: #fff;
  border: none;
  font-size: 15px;
  font-weight: 700;
  box-shadow: 0 12px 28px rgba(111, 66, 255, 0.20);
  transition: var(--transition);
}

.btn-brand:hover {
  color: #fff;
  transform: translateY(-2px);
}

.btn-brand-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 160px;
  height: 48px;
  padding: 0 24px;
  border-radius: 999px;
  border: 1px solid var(--brand-secondary);
  color: var(--brand-secondary);
  background: transparent;
  font-size: 14px;
  font-weight: 700;
  transition: var(--transition);
}

.btn-brand-outline:hover {
  background: var(--brand-secondary);
  border-color: var(--brand-secondary);
  color: #fff;
}

/* ===== Header / Navbar ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
  background: rgba(255, 255, 255, 0.98);
}

.navbar {
  min-height: 78px;
}

.navbar-brand img {
  max-height: 52px;
  width: auto;
}

.navbar .nav-link {
  position: relative;
  padding-left: 1rem !important;
  padding-right: 1rem !important;
  color: #222;
  font-size: 15px;
  font-weight: 700;
}

.navbar .nav-link:hover,
.navbar .nav-link.active,
.navbar .nav-item.show>.nav-link {
  color: var(--brand-primary);
}

.navbar .dropdown-menu {
  border: none;
  border-radius: 16px;
  padding: 10px 0;
  box-shadow: var(--shadow-md);
}

.navbar .dropdown-item {
  padding: 10px 18px;
  font-size: 14px;
  color: #333;
  transition: var(--transition);
}

.navbar .dropdown-item:hover {
  background: rgba(111, 66, 255, 0.08);
  color: var(--brand-primary);
}

.lang-link img {
  width: 30px;
  height: 30px;
  border-radius: 6px;
  object-fit: cover;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.navbar-toggler {
  padding: 0.35rem 0.5rem;
}

.navbar-toggler:focus {
  box-shadow: none;
}

/* ===== Hero Banner ===== */
.hero-section {
  position: relative;
  overflow: hidden;
  background: #f7f7fb;
}

.hero-slide {
  position: relative;
  min-height: 760px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.08;
  transform: scale(1.04);
  filter: blur(1px);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    radial-gradient(circle at 10% 10%, rgba(120, 87, 255, 0.08), transparent 30%),
    radial-gradient(circle at 85% 75%, rgba(120, 87, 255, 0.10), transparent 28%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.90) 50%, rgba(244, 240, 255, 0.78) 100%);
}

.hero-row {
  min-height: 760px;
  position: relative;
  z-index: 3;
  padding: 80px 0;
}

.hero-content {
  max-width: 620px;
  position: relative;
  z-index: 3;
}

.hero-kicker {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--brand-primary);
  font-size: 18px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hero-content h1 {
  margin: 0 0 24px;
  font-size: 78px;
  line-height: 1.08;
  font-weight: 800;
  color: #111;
  letter-spacing: -1.5px;
}

.hero-content p {
  margin: 0;
  font-size: 28px;
  line-height: 1.75;
  color: #666;
  max-width: 760px;
}

.hero-btns {
  margin-top: 36px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.hero-play-btn {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-dark) 100%);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 24px rgba(111, 66, 255, 0.18);
  transition: var(--transition);
}

.hero-play-btn:hover {
  color: #fff;
  transform: translateY(-2px);
}

.hero-visual {
  position: relative;
  min-height: 620px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
}

.hero-shape {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.hero-shape-1 {
  width: 130px;
  height: 130px;
  top: 20px;
  left: 40px;
  background: radial-gradient(circle, rgba(111, 66, 255, .35), rgba(111, 66, 255, .12));
}

.hero-shape-2 {
  width: 320px;
  height: 320px;
  right: -40px;
  bottom: 0;
  border-radius: 36px;
  background: linear-gradient(180deg, rgba(111, 66, 255, .08), rgba(111, 66, 255, .28));
}

.hero-product-main {
  position: relative;
  z-index: 3;
  width: 78%;
  margin-left: auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: #fff;
}

.hero-product-main img {
  width: 100%;
  height: 560px;
  object-fit: cover;
}

.hero-product-sub {
  position: absolute;
  z-index: 4;
  left: 20px;
  bottom: 20px;
  width: 42%;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 18px 40px rgba(0, 0, 0, .16);
  background: #fff;
}

.hero-product-sub img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.hero-section .carousel-control-prev,
.hero-section .carousel-control-next {
  width: 52px;
  height: 52px;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(17, 17, 17, .18);
  border-radius: 50%;
  z-index: 5;
  opacity: 1;
}

.hero-section .carousel-control-prev {
  left: 24px;
}

.hero-section .carousel-control-next {
  right: 24px;
}

.hero-section .carousel-control-prev-icon,
.hero-section .carousel-control-next-icon {
  width: 20px;
  height: 20px;
}

.hero-section .carousel-indicators {
  bottom: 24px;
  z-index: 6;
}

.hero-section .carousel-indicators [data-bs-target] {
  width: 12px;
  height: 12px;
  border: none;
  border-radius: 50%;
  background: rgba(17, 17, 17, .22);
  margin: 0 6px;
}

.hero-section .carousel-indicators .active {
  background: var(--brand-primary);
}

/* ===== About ===== */
/* ===== About Media / Video ===== */
.about-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: #000;
}

.about-video {
  display: block;
  width: 100%;
  height: 420px;
  min-height: 420px;
  object-fit: cover;
  background: #000;
}

.about-video-fullscreen {
  position: absolute;
  right: 18px;
  bottom: 18px;
  z-index: 5;
  border: none;
  border-radius: 999px;
  padding: 10px 18px;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}

.about-video-fullscreen:hover {
  background: rgba(0, 0, 0, 0.75);
}

.about-content h3 {
  margin-bottom: 18px;
  font-size: 34px;
  line-height: 1.3;
  font-weight: 800;
  color: var(--text-main);
}

.about-content p {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.95;
}

/* ===== Product ===== */
.product-nav .btn {
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  padding: 8px 18px;
  transition: var(--transition);
}

.product-nav .btn.active,
.product-nav .btn:hover {
  background: var(--brand-primary);
  border-color: var(--brand-primary);
  color: #fff;
}

.product-card {
  border: none;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  background: #fff;
}

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

.product-thumb {
  display: block;
  overflow: hidden;
  background: #f7f7f7;
}

.product-thumb img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  transition: transform .45s ease;
}

.product-card:hover .product-thumb img {
  transform: scale(1.05);
}

.product-card .card-body {
  padding: 24px 20px 28px;
}

.product-card .card-title {
  margin-bottom: 18px;
  font-size: 20px;
  line-height: 1.5;
  font-weight: 700;
}

.product-card .card-title a:hover {
  color: var(--brand-primary);
}

/* ===== Cases ===== */
.case-scroll-row {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding-bottom: 12px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.case-scroll-row::-webkit-scrollbar {
  height: 8px;
}

.case-scroll-row::-webkit-scrollbar-track {
  background: #eef1f5;
  border-radius: 999px;
}

.case-scroll-row::-webkit-scrollbar-thumb {
  background: #cfd6de;
  border-radius: 999px;
}

.case-scroll-item {
  flex: 0 0 calc((100% - 72px) / 4);
  min-width: 0;
  scroll-snap-align: start;
}

.case-card {
  display: block;
  height: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.case-card:hover {
  transform: translateY(-8px);
}

.case-thumb {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.case-thumb img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  transition: transform .45s ease;
}

.case-thumb-a4 {
  aspect-ratio: 1 / 1.4142;
  background: #fff;
  border: 1px solid #eef0f4;
}

.case-thumb-a4 img {
  width: 100%;
  height: 100% !important;
  object-fit: contain;
  background: #fff;
  padding: 10px;
}

.case-card:hover .case-thumb img {
  transform: scale(1.06);
}

.case-mask {
  position: absolute;
  inset: auto 0 0 0;
  padding: 24px 20px;
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, .78));
  color: #fff;
}

.case-mask h4 {
  margin: 0;
  font-size: 18px;
  line-height: 1.4;
  font-weight: 700;
}

.case-preview-modal .modal-content {
  border: none;
  border-radius: 20px;
  overflow: hidden;
}

.case-preview-modal .modal-body {
  background: #f5f7fa;
}

.case-preview-modal img {
  max-height: 82vh;
  object-fit: contain;
  background: #fff;
  border-radius: 12px;
}

/* ===== Factory ===== */
.factory-card {
  display: block;
  text-align: center;
  transition: var(--transition);
}

.factory-card:hover {
  transform: translateY(-8px);
}

.factory-card img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: 22px;
  box-shadow: var(--shadow-sm);
  transition: transform .45s ease;
}

.factory-card:hover img {
  transform: scale(1.04);
}

.factory-title {
  display: block;
  margin-top: 14px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
}

/* ===== News ===== */
.news-card {
  border: none;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  background: #fff;
  transition: var(--transition);
}

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

.news-thumb {
  overflow: hidden;
}

.news-thumb img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  transition: transform .45s ease;
}

.news-card:hover .news-thumb img {
  transform: scale(1.05);
}

.news-card .card-body {
  padding: 22px 20px 24px;
}

.news-date {
  color: var(--brand-primary);
  font-size: 14px;
  font-weight: 700;
}

.news-card h3 {
  margin: 0 0 12px;
  font-size: 21px;
  line-height: 1.5;
  font-weight: 700;
}

.news-card h3 a:hover {
  color: var(--brand-primary);
}

.news-card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
}

/* ===== Contact ===== */
.contact-section {
  position: relative;
  background: linear-gradient(135deg, #b78d4a 0%, #d2ab72 100%);
}

.contact-box {
  border-radius: 28px;
  overflow: hidden;
  box-shadow: 0 1rem 3rem rgba(0, 0, 0, .12);
  background: transparent;
}

.contact-copy {
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact-copy h2 {
  margin: 0 0 16px;
  font-size: clamp(34px, 4vw, 50px);
  line-height: 1.2;
  font-weight: 800;
}

.contact-copy p {
  margin: 0;
  color: rgba(255, 255, 255, .82);
  font-size: 16px;
  line-height: 1.9;
}

.form-control {
  min-height: 54px;
  border: 1px solid var(--border-color);
  border-radius: 14px;
  font-size: 15px;
  color: var(--text-main);
  padding: 12px 16px;
  box-shadow: none !important;
}

textarea.form-control {
  min-height: 140px;
  resize: vertical;
}

.form-control:focus {
  border-color: var(--brand-primary);
}

/* ===== Footer ===== */
.footer-main {
  background: #111827;
  color: rgba(255, 255, 255, .78);
}

.footer-title {
  margin-bottom: 16px;
  color: #fff;
  font-size: 20px;
  font-weight: 700;
}

.footer-text {
  color: rgba(255, 255, 255, .72);
  font-size: 15px;
  line-height: 1.95;
}

.footer-links {
  list-style: none;
}

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

.footer-links li a {
  color: rgba(255, 255, 255, .72);
  font-size: 15px;
}

.footer-links li a:hover {
  color: #fff;
}

.footer-contact li {
  color: rgba(255, 255, 255, .72);
  font-size: 15px;
  line-height: 1.9;
}

.social-link {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, .10);
  color: #fff;
  font-size: 16px;
}

.social-link:hover {
  background: var(--brand-secondary);
  color: #fff;
}

.footer-bottom,
.footer-bottom a {
  color: rgba(255, 255, 255, .60);
  font-size: 14px;
}

.footer-bottom a {
  margin: 0 6px;
}

.footer-bottom a:hover {
  color: #fff;
}

/* ===== 公共动画效果 ===== */
.product-card,
.case-card,
.factory-card,
.news-card,
.social-link,
.btn-brand,
.btn-brand-outline {
  will-change: transform;
}

/* ===== 响应式 ===== */
@media (max-width: 1399px) {
  .hero-content h1 {
    font-size: 66px;
  }

  .hero-content p {
    font-size: 24px;
  }
}

@media (max-width: 1199px) {
  body {
    padding-top: 74px;
  }

  .hero-slide,
  .hero-row {
    min-height: 680px;
  }

  .hero-content h1 {
    font-size: 56px;
  }

  .hero-content p {
    font-size: 22px;
  }

  .hero-product-main img {
    height: 500px;
  }

  .navbar .nav-link {
    padding-left: 0.8rem !important;
    padding-right: 0.8rem !important;
  }
}

@media (max-width: 991.98px) {
  body {
    padding-top: 70px;
  }

  .navbar-collapse {
    margin-top: 12px;
    background: #fff;
    border-radius: 18px;
    padding: 14px 10px;
    box-shadow: var(--shadow-md);
  }

  .navbar .nav-link {
    padding: 12px 12px !important;
  }

  .navbar .dropdown-menu {
    box-shadow: none;
    border-radius: 12px;
    background: #f8fafc;
    margin-top: 4px;
  }

  .hero-slide,
  .hero-row {
    min-height: auto;
  }

  .hero-row {
    padding: 60px 0 70px;
  }

  .hero-content {
    max-width: 100%;
    margin-bottom: 36px;
  }

  .hero-content h1 {
    font-size: 46px;
    line-height: 1.15;
  }

  .hero-content p {
    font-size: 18px;
    max-width: 100%;
  }

  .hero-visual {
    min-height: auto;
    padding-top: 10px;
  }

  .hero-product-main {
    width: 88%;
    margin: 0 auto;
  }

  .hero-product-main img {
    height: 420px;
  }

  .hero-product-sub {
    left: 10px;
    bottom: -20px;
    width: 44%;
  }

  .hero-product-sub img {
    height: 180px;
  }

  .about-video {
    height: auto;
    min-height: 0;
    aspect-ratio: 16 / 9;
  }

  .case-scroll-item {
    flex-basis: calc((100% - 24px) / 2);
  }

  .product-thumb img,
  .case-thumb img,
  .news-thumb img,
  .factory-card img {
    height: 220px;
  }

  .contact-copy,
  .contact-section .bg-white {
    padding: 32px !important;
  }
}

@media (max-width: 767.98px) {
  .section-block {
    padding-top: 60px !important;
    padding-bottom: 60px !important;
  }

  .hero-row {
    padding: 42px 0 60px;
  }

  .hero-kicker {
    font-size: 14px;
    margin-bottom: 12px;
  }

  .hero-content h1 {
    font-size: 36px;
    line-height: 1.15;
    margin-bottom: 16px;
    letter-spacing: 0;
  }

  .hero-content p {
    font-size: 16px;
    line-height: 1.8;
  }

  .hero-btns {
    margin-top: 26px;
    gap: 14px;
  }

  .btn-brand {
    min-width: 160px;
    height: 48px;
    font-size: 14px;
    padding: 0 22px;
  }

  .hero-play-btn {
    width: 48px;
    height: 48px;
  }

  .hero-visual {
    margin-top: 10px;
    padding-bottom: 35px;
  }

  .hero-product-main {
    width: 100%;
  }

  .hero-product-main img {
    height: 320px;
    border-radius: 20px;
  }

  .hero-product-sub {
    width: 48%;
    left: 0;
    bottom: 0;
    border-radius: 18px;
  }

  .hero-product-sub img {
    height: 120px;
  }

  .hero-shape-1 {
    width: 90px;
    height: 90px;
    top: -10px;
    left: 10px;
  }

  .hero-shape-2 {
    width: 180px;
    height: 180px;
    right: -20px;
    bottom: 0;
    border-radius: 24px;
  }

  .hero-section .carousel-control-prev,
  .hero-section .carousel-control-next {
    display: none;
  }

  .about-content h3 {
    font-size: 28px;
  }

  .product-card .card-title,
  .news-card h3 {
    font-size: 18px;
  }

  .contact-copy h2 {
    font-size: 30px;
  }

  .case-scroll-row {
    gap: 16px;
  }

  .case-scroll-item {
    flex-basis: calc((100% - 16px) / 2);
  }

  .footer-title {
    font-size: 18px;
  }
}

@media (max-width: 575.98px) {
  body {
    padding-top: 68px;
  }

  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .section-heading h2 {
    font-size: 28px;
  }

  .hero-content h1 {
    font-size: 30px;
  }

  .hero-content p {
    font-size: 15px;
  }

  .hero-product-main img {
    height: 280px;
  }

  .hero-product-sub img {
    height: 100px;
  }

  .case-scroll-item {
    flex-basis: 82%;
  }

  .product-thumb img,
  .case-thumb img,
  .news-thumb img,
  .factory-card img {
    height: 200px;
  }

  .contact-copy,
  .contact-section .bg-white {
    padding: 24px !important;
  }

  .footer-bottom {
    line-height: 1.8;
  }
}

.page-header-box {
  border: 1px solid #eef0f4;
}

.content-panel,
.related-block,
.sidebar-widget {
  border: 1px solid #eef0f4;
}

.detail-title {
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.25;
  font-weight: 800;
}

.detail-meta a,
.breadcrumb a,
.news-list-card a,
.sidebar-widget a,
.nav-article-card a {
  color: inherit;
}

.article-content-wrapper {
  line-height: 1.9;
  color: #374151;
}

.article-content-wrapper img {
  max-width: 100%;
  height: auto;
  border-radius: 16px;
}

.cta-panel {
  background: linear-gradient(135deg, #f6f3ff 0%, #ffffff 100%);
  border: 1px solid #ece7ff;
}

.nav-article-card {
  border: 1px solid #eef0f4;
  background: #fff;
  color: inherit;
  text-decoration: none;
}

.nav-article-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, .06);
}

.news-list-card {
  background: #fff;
  border: 1px solid #eef0f4;
}

.news-list-card img {
  min-height: 100%;
  object-fit: cover;
}

.sidebar-news-item,
.sidebar-product-item {
  color: inherit;
}

.sidebar-news-item:hover,
.sidebar-product-item:hover {
  transform: translateX(4px);
}

@media (min-width: 992px) {
  .sidebar-column {
    position: sticky;
    top: 96px;
    align-self: flex-start;
  }
  .sidebar-inquiry-box {
    min-height: 416px;
  }
}

.pagination-wrap .btn,
.pagination-wrap .page-item,
.pagination-wrap a {
  border-radius: 999px !important;
}

@media (max-width: 991.98px) {

  .page-header-section,
  .detail-page,
  .list-page {
    padding-top: 3rem !important;
    padding-bottom: 3rem !important;
  }
}