/* ================================================================
   恒鑫铝业 — 铝型材全产业链源头工厂 (style.css)
   设计方向：工业银灰 + 深灰 + 白色 + 亮橙点缀
   排版风格：信息全面 / 模块清晰 / 供应链地图感 / 直角为主
   架构模式：第三方模板 ({pboot:sitedomain}/skin/)
   ================================================================ */

/* Google Fonts — Noto Sans SC (思源黑体) */


/* ─── CSS Variables ─── */
:root {
  /* 主色系 */
  --orange: #e8611a;
  --orange-hover: #d45514;
  --orange-light: #fdf0e8;
  --orange-dark: #c44d12;

  /* 工业银灰 */
  --silver-dark: #3a3e45;
  --silver: #5a6068;
  --silver-mid: #8a9098;
  --silver-light: #b8bcc2;
  --silver-pale: #d8dce2;

  /* 深色背景 */
  --bg-darkest: #111318;
  --bg-darker: #1a1d24;
  --bg-dark: #21252c;
  --bg-dark-mid: #2a2e36;
  --bg-card-dark: #2e323a;

  /* 浅色 */
  --white: #ffffff;
  --bg-light: #f5f6f8;
  --bg-lighter: #fafbfc;
  --bg-card: #f2f3f5;

  /* 文字 */
  --text-primary: #1a1d22;
  --text-secondary: #4a5058;
  --text-muted: #8a9098;
  --text-light: #b8bcc2;
  --text-white: #e8eaed;
  --text-white-dim: #9a9fa8;

  /* 边框 */
  --border-strong: #3a3e45;
  --border-default: #d0d4d8;
  --border-subtle: #e0e3e7;
  --border-light: #eef0f2;

  /* 间距 */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;

  /* 圆角 */
  --radius-none: 0;
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 6px;

  /* 阴影 */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.16);

  /* 字体 */
  --font-body: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-data: "SF Mono", "Menlo", "Consolas", "Courier New", monospace;

  /* 容器 */
  --max-width: 1200px;
  --header-height: 72px;

  /* 过渡 */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --duration: 0.25s;
}

/* ─── Reset ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-body); color: var(--text-primary); line-height: 1.6; background: var(--white); overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }
input, select, textarea { font: inherit; color: inherit; }

/* ─── Container ─── */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-lg); }
.container--narrow { max-width: 900px; }
.container--wide { max-width: 1320px; }

/* ─── Section ─── */
.section { padding: var(--space-4xl) 0; }
.section--dark { background: var(--bg-darker); color: var(--text-white); }
.section--gray { background: var(--bg-light); }
.section--dark-mid { background: var(--bg-dark); color: var(--text-white); }
.section--compact { padding: var(--space-3xl) 0; }

/* ─── Section Header ─── */
.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: var(--space-sm);
  position: relative;
  padding-left: 28px;
}
.section-tag::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 20px;
  height: 2px;
  background: var(--orange);
  transform: translateY(-50%);
}
.section--dark .section-tag { color: var(--orange); }
.section--dark .section-tag::before { background: var(--orange); }

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-sm);
  color: inherit;
}
.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 600px;
  line-height: 1.6;
}
.section--dark .section-subtitle { color: var(--text-white-dim); }

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}
.section-header--left { text-align: left; }

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 12px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  transition: all var(--duration) var(--ease);
  white-space: nowrap;
  line-height: 1.2;
}
.btn--primary {
  background: var(--orange);
  color: var(--white);
}
.btn--primary:hover {
  background: var(--orange-hover);
  box-shadow: 0 4px 16px rgba(232, 97, 26, 0.35);
  transform: translateY(-1px);
}
.btn--outline {
  border: 2px solid var(--border-strong);
  color: var(--text-primary);
  background: transparent;
}
.btn--outline:hover {
  border-color: var(--orange);
  color: var(--orange);
}
.btn--ghost {
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  background: var(--white);
}
.btn--ghost:hover { border-color: var(--silver-light); color: var(--text-primary); }
.btn--white {
  background: var(--white);
  color: var(--text-primary);
}
.btn--white:hover { background: var(--bg-light); }
.btn--lg { padding: 15px 36px; font-size: 1rem; }
.btn--sm { padding: 8px 18px; font-size: 0.85rem; }
.btn--full { width: 100%; justify-content: center; }

/* ─── Header ─── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--bg-darkest);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: all var(--duration) var(--ease);
}
.header.scrolled {
  background: rgba(17, 19, 24, 0.97);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  align-items: center;
  height: var(--header-height);
  gap: var(--space-xl);
}
/* Logo */
.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-shrink: 0;
}
.header__logo-icon {
  width: 44px;
  height: 44px;
  background: var(--orange);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--white);
  font-weight: 900;
  letter-spacing: -0.02em;
}
.header__logo-text { display: flex; flex-direction: column; }
.header__logo-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
  letter-spacing: 0.02em;
}
.header__logo-sub {
  font-size: 0.65rem;
  color: var(--orange);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
}

/* Nav */
.header__nav {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  justify-content: center;
}
.header__nav-link {
  padding: 10px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-white-dim);
  border-radius: var(--radius-sm);
  transition: all var(--duration) var(--ease);
  position: relative;
}
.header__nav-link:hover,
.header__nav-link.active {
  color: var(--white);
}
.header__nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--orange);
  border-radius: 1px;
}

/* Nav Dropdown */
.header__nav-item { position: relative; }
.header__dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--bg-darker);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  padding: var(--space-sm) 0;
  min-width: 180px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s var(--ease);
  z-index: 60;
  box-shadow: 0 12px 32px rgba(0,0,0,0.4);
}
.header__nav-item:hover .header__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(4px);
}
.header__dropdown a {
  display: block;
  padding: 10px 20px;
  font-size: 0.88rem;
  color: var(--text-white-dim);
  transition: all var(--duration) var(--ease);
  white-space: nowrap;
}
.header__dropdown a:hover {
  background: rgba(255,255,255,0.05);
  color: var(--white);
}
/* Dropdown indicator arrow */
.header__nav-link .fa-chevron-down {
  font-size: 0.55rem;
  margin-left: 4px;
  opacity: 0.5;
  transition: transform 0.2s;
}
.header__nav-item:hover .header__nav-link .fa-chevron-down {
  opacity: 1;
  transform: rotate(180deg);
}

/* Header CTA */
.header__cta {
  flex-shrink: 0;
  padding: 10px 22px;
  font-size: 0.88rem;
  font-weight: 600;
  background: var(--orange);
  color: var(--white);
  border-radius: var(--radius-sm);
  transition: all var(--duration) var(--ease);
  display: flex;
  align-items: center;
  gap: 6px;
}
.header__cta:hover { background: var(--orange-hover); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px 4px;
  cursor: pointer;
  z-index: 110;
  flex-shrink: 0;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 1px;
  transition: all 0.3s var(--ease);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ─── Mobile Nav ─── */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  height: 100vh;
  background: var(--bg-darker);
  z-index: 105;
  transition: right 0.35s var(--ease);
  overflow-y: auto;
  box-shadow: -4px 0 24px rgba(0,0,0,0.3);
}
.mobile-nav.open { right: 0; }
.mobile-nav__inner { padding: var(--space-xl); }
.mobile-nav__link {
  display: block;
  padding: 14px 16px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-white-dim);
  border-radius: var(--radius-sm);
  transition: all var(--duration) var(--ease);
}
.mobile-nav__link:hover { background: rgba(255,255,255,0.05); color: var(--white); }
.mobile-nav__sub { padding-left: var(--space-md); display: none; }
.mobile-nav__sub.open { display: block; }
.mobile-nav__sub a {
  display: block;
  padding: 10px 16px;
  font-size: 0.9rem;
  color: var(--text-white-dim);
  border-radius: var(--radius-sm);
}
.mobile-nav__overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 104;
  opacity: 0;
  visibility: hidden;
  transition: all 0.35s var(--ease);
}
.mobile-nav__overlay.open { opacity: 1; visibility: visible; }

/* ─── Hero / Banner ─── */
.hero {
  position: relative;
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--bg-darkest);
}
.hero .swiper { width: 100%; height: 100%; position: absolute; inset: 0; }
.hero .swiper-slide {
  background-size: cover;
  background-position: center;
}
.hero__slide {
  width: 100%;
  height: 100vh;
  background-size: cover;
  background-position: center;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(17,19,24,0.85) 0%, rgba(17,19,24,0.55) 50%, rgba(17,19,24,0.35) 100%);
  z-index: 1;
}
/* Grid pattern overlay for industrial feel */
.hero__overlay::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.5;
}
.hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  padding-top: var(--header-height);
}
.hero__title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.15;
  color: var(--white);
  max-width: 700px;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
}
.hero__title span { color: var(--orange); }
.hero__subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-white-dim);
  max-width: 560px;
  margin-bottom: var(--space-xl);
  line-height: 1.7;
}
.hero__actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}
.hero__actions .btn--primary {
  background: var(--orange);
  border-color: var(--orange);
}
.hero__actions .btn--outline {
  border-color: rgba(255,255,255,0.3);
  color: var(--white);
}
.hero__actions .btn--outline:hover {
  border-color: var(--orange);
  color: var(--orange);
}
.hero__scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.4);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  animation: floatDown 2s ease-in-out infinite;
}
.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
}
@keyframes floatDown {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* Hero Pagination */
.hero-pagination {
  position: absolute;
  bottom: 36px;
  right: var(--space-xl);
  z-index: 3;
  display: flex;
  gap: 8px;
}
.hero-pagination .swiper-pagination-bullet {
  width: 10px;
  height: 10px;
  background: rgba(255,255,255,0.35);
  opacity: 1;
  border-radius: 2px;
  transition: all 0.3s;
  cursor: pointer;
}
.hero-pagination .swiper-pagination-bullet-active {
  background: var(--orange);
  width: 28px;
}

/* ─── Supply Chain Flow (全产业链示意) ─── */
.supply-chain {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
  padding: var(--space-xl) 0;
}
.supply-chain__step {
  flex: 1;
  min-width: 150px;
  text-align: center;
  padding: var(--space-lg);
  position: relative;
}
.supply-chain__step:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -4px;
  top: 50%;
  width: 20px;
  height: 2px;
  background: var(--orange);
  transform: translateY(-50%);
}
.supply-chain__step-icon {
  width: 72px;
  height: 72px;
  border: 2px solid var(--border-strong);
  border-radius: var(--radius-sm);
  margin: 0 auto var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--orange);
  background: rgba(232, 97, 26, 0.06);
  transition: all 0.3s;
}
.supply-chain__step:hover .supply-chain__step-icon {
  background: var(--orange);
  color: var(--white);
  border-color: var(--orange);
  box-shadow: 0 8px 24px rgba(232,97,26,0.3);
}
.supply-chain__step-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 4px;
}
.supply-chain__step-data {
  font-size: 0.8rem;
  color: var(--orange);
  font-weight: 600;
}

/* ─── Data Wall (产能数据墙) ─── */
.data-wall {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  text-align: center;
}
.data-wall__item {
  padding: var(--space-xl) var(--space-md);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.02);
  transition: all 0.3s;
}
.data-wall__item:hover {
  border-color: rgba(232,97,26,0.3);
  background: rgba(232,97,26,0.04);
}
.data-wall__number {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 900;
  color: var(--orange);
  font-family: var(--font-data);
  line-height: 1;
  margin-bottom: var(--space-sm);
}
.data-wall__number sup {
  font-size: 1.2rem;
  font-weight: 700;
  position: relative;
  top: -0.4em;
}
.data-wall__label {
  font-size: 0.9rem;
  color: var(--text-white-dim);
  font-weight: 500;
}

/* ─── Cards ─── */
/* Product Card (gray background + dark border) */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--duration) var(--ease);
  display: flex;
  flex-direction: column;
}
.card:hover {
  border-color: var(--silver-light);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.section--dark .card {
  background: var(--bg-card-dark);
  border-color: rgba(255,255,255,0.06);
}
.section--dark .card:hover {
  border-color: rgba(255,255,255,0.15);
  background: var(--bg-dark-mid);
}
.card__image {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--silver-pale);
}
.section--dark .card__image { background: var(--bg-dark); }
.card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s var(--ease);
}
.card:hover .card__image img { transform: scale(1.04); }
.card__tag {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--orange);
  color: var(--white);
  border-radius: var(--radius-sm);
  letter-spacing: 0.04em;
}
.card__body { padding: var(--space-lg); flex: 1; display: flex; flex-direction: column; }
.card__title {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.section--dark .card__title { color: var(--text-white); }
.card__desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: var(--space-md);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.section--dark .card__desc { color: var(--text-white-dim); }
.card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border-subtle);
}
.section--dark .card__meta { border-color: rgba(255,255,255,0.06); }
.card__meta span { display: flex; align-items: center; gap: 4px; }
.card__capability {
  font-size: 0.8rem;
  color: var(--orange);
  font-weight: 600;
}

/* Case Card (full-width image) */
.case-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}
.case-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 3/4;
  background: var(--bg-dark);
}
.case-card__image {
  position: absolute;
  inset: 0;
}
.case-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease);
}
.case-card:hover .case-card__image img { transform: scale(1.06); }
.case-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.2) 50%, rgba(0,0,0,0.05) 100%);
}
.case-card__info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-xl) var(--space-lg);
  color: var(--white);
}
.case-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.case-card__tonnage {
  font-size: 0.82rem;
  color: var(--orange);
  font-weight: 600;
}

/* News Card */
.news-card {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: var(--white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--duration) var(--ease);
}
.news-card:hover { border-color: var(--silver-light); box-shadow: var(--shadow-sm); }
.news-card__image {
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: var(--bg-light);
}
.news-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}
.news-card:hover .news-card__image img { transform: scale(1.04); }
.news-card__date {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}
.news-card__title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  line-height: 1.4;
}
.news-card__desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ─── Manufacturing Showcase (挤压+喷涂双栏) ─── */
.mfg-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}
.mfg-showcase__col {
  background: var(--bg-card-dark);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  overflow: hidden;
  padding: var(--space-xl);
}
.mfg-showcase__images {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}
.mfg-showcase__images img {
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background: var(--bg-dark);
}

/* ─── Specs Table (型材规格速查表) ─── */
.specs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.specs-table thead th {
  background: var(--bg-darker);
  color: var(--orange);
  padding: 14px 16px;
  text-align: left;
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  border-bottom: 2px solid var(--border-strong);
}
.specs-table tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}
.specs-table tbody tr:hover td {
  background: rgba(232,97,26,0.03);
}
.section--dark .specs-table tbody td {
  color: var(--text-white-dim);
  border-color: rgba(255,255,255,0.05);
}
.section--dark .specs-table tbody tr:hover td {
  background: rgba(255,255,255,0.03);
}

/* ─── Dealer / CTA Banner ─── */
.dealer-banner {
  background: var(--orange);
  color: var(--white);
  padding: var(--space-3xl) 0;
  position: relative;
  overflow: hidden;
}
.dealer-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(255,255,255,0.03) 10px, rgba(255,255,255,0.03) 20px);
}
.dealer-banner .container { position: relative; z-index: 1; }
.dealer-banner__title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  margin-bottom: var(--space-md);
}
.dealer-banner__modes {
  display: flex;
  gap: var(--space-xl);
  flex-wrap: wrap;
  margin: var(--space-xl) 0;
}
.dealer-banner__mode {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.05rem;
  font-weight: 600;
}
.dealer-banner__mode i { font-size: 1.4rem; opacity: 0.8; }

/* ─── CTA Section ─── */
.cta-section {
  background: var(--bg-darker);
  color: var(--white);
  text-align: center;
  padding: var(--space-4xl) 0;
  border-top: 3px solid var(--orange);
}
.cta-section__title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  margin-bottom: var(--space-md);
}
.cta-section__features {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
  color: var(--text-white-dim);
  font-size: 0.95rem;
  font-weight: 500;
}
.cta-section__features span::before {
  content: '▸';
  color: var(--orange);
  margin-right: 6px;
}

/* ─── Footer ─── */
.footer {
  background: var(--bg-darkest);
  color: var(--text-white-dim);
  padding-top: var(--space-3xl);
}
.footer__grid {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr 1.5fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}
.footer__brand-desc {
  font-size: 0.85rem;
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}
.footer__social {
  display: flex;
  gap: var(--space-sm);
}
.footer__social a {
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--text-white-dim);
  transition: all var(--duration) var(--ease);
}
.footer__social a:hover {
  border-color: var(--orange);
  color: var(--orange);
  background: rgba(232,97,26,0.1);
}
.footer__col-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: var(--space-lg);
  position: relative;
  padding-bottom: var(--space-sm);
}
.footer__col-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--orange);
}
.footer__links a {
  display: block;
  padding: 6px 0;
  font-size: 0.85rem;
  color: var(--text-white-dim);
  transition: all var(--duration) var(--ease);
}
.footer__links a:hover { color: var(--orange); padding-left: 4px; }
.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  font-size: 0.85rem;
  line-height: 1.5;
}
.footer__contact-item i {
  color: var(--orange);
  margin-top: 3px;
  flex-shrink: 0;
}
.footer__qrcode {
  width: 100px;
  height: 100px;
  background: var(--white);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.4;
}

/* Friend Links */
.friend-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 0.82rem;
}
.friend-links__label { color: var(--orange); font-weight: 600; }
.friend-links a { color: var(--text-white-dim); transition: color 0.2s; }
.friend-links a:hover { color: var(--white); }

/* Footer Bottom */
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: var(--space-lg) 0;
}
.footer__bottom-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: 0.8rem;
}

/* ─── Inner Banner (内页Banner) ─── */
.inner-banner {
  position: relative;
  height: 320px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--bg-darkest);
  margin-top: var(--header-height);
}
.inner-banner__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}
.inner-banner__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(17,19,24,0.7), rgba(17,19,24,0.85));
}
.inner-banner__content {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  width: 100%;
}
.inner-banner__title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: var(--space-sm);
}
.inner-banner__subtitle {
  font-size: 1rem;
  color: var(--text-white-dim);
  max-width: 500px;
}

/* ─── Breadcrumb ─── */
.breadcrumb-bar {
  background: var(--bg-light);
  border-bottom: 1px solid var(--border-subtle);
  padding: 14px 0;
}
.breadcrumb {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  font-size: 0.85rem;
  color: var(--text-muted);
}
.breadcrumb a { color: var(--text-secondary); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--orange); }
.breadcrumb i { font-size: 0.6rem; margin: 0 8px; color: var(--silver-light); }

/* ─── Page Layout (内页两栏布局) ─── */
.page-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: var(--space-2xl);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-lg);
}
/* Sidebar */
.sidebar {
  flex-shrink: 0;
}
.sidebar__title {
  background: var(--bg-darkest);
  color: var(--white);
  padding: var(--space-lg);
  font-size: 1.15rem;
  font-weight: 700;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}
.sidebar__nav {
  border: 1px solid var(--border-subtle);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  overflow: hidden;
}
.sidebar__nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px var(--space-lg);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-light);
  transition: all var(--duration) var(--ease);
}
.sidebar__nav a:last-child { border-bottom: none; }
.sidebar__nav a:hover,
.sidebar__nav a.active {
  color: var(--orange);
  background: var(--orange-light);
  padding-left: calc(var(--space-lg) + 4px);
}
.sidebar__nav a::after {
  content: '\f105';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 0.7rem;
  color: var(--silver-light);
  transition: all var(--duration) var(--ease);
}
.sidebar__nav a:hover::after,
.sidebar__nav a.active::after {
  color: var(--orange);
  transform: translateX(3px);
}

/* ─── List Content ─── */
.list-grid--3 { grid-template-columns: repeat(3, 1fr); }
.list-grid--4 { grid-template-columns: repeat(4, 1fr); }
.list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
  gap: var(--space-md);
}
.list-header__count {
  font-size: 0.88rem;
  color: var(--text-muted);
}
.list-header__count strong { color: var(--orange); }

/* ─── Detail Page ─── */
.detail-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
}
.detail-gallery .swiper { border-radius: var(--radius-md); overflow: hidden; background: var(--bg-light); }
.detail-info__title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  line-height: 1.3;
}
.detail-info__specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin: var(--space-lg) 0;
  padding: var(--space-lg);
  background: var(--bg-light);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}
.detail-info__spec-item {}
.detail-info__spec-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 2px;
}
.detail-info__spec-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}
.detail-info__cta {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

/* Detail Tabs */
.detail-tabs {
  margin-top: var(--space-2xl);
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--space-xl);
}
.detail-tabs__nav {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border-subtle);
  margin-bottom: var(--space-xl);
}
.detail-tabs__tab {
  padding: 12px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--duration) var(--ease);
  cursor: pointer;
}
.detail-tabs__tab.active,
.detail-tabs__tab:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}
.detail-tabs__panel { display: none; }
.detail-tabs__panel.active { display: block; }

.detail__body {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-secondary);
}
.detail__body img { max-width: 100%; border-radius: var(--radius-md); margin: var(--space-lg) 0; }
.detail__body p { margin-bottom: var(--space-md); }
.detail__body h2,
.detail__body h3 { color: var(--text-primary); margin: var(--space-xl) 0 var(--space-md); }

/* ─── Contact Page ─── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
}
.contact-info__item {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}
.contact-info__icon {
  width: 48px;
  height: 48px;
  background: var(--orange-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--orange);
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-info__label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 2px;
}
.contact-info__value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}
.contact-form-card {
  background: var(--bg-light);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
}

/* ─── Form ─── */
.form-group { margin-bottom: var(--space-md); }
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-primary);
}
.form-group .required { color: var(--orange); margin-left: 2px; }
.form-control {
  width: 100%;
  padding: 11px 14px;
  font-size: 0.9rem;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  background: var(--white);
  transition: border-color var(--duration) var(--ease);
  outline: none;
}
.form-control:focus { border-color: var(--orange); box-shadow: 0 0 0 3px rgba(232,97,26,0.08); }
textarea.form-control { resize: vertical; min-height: 100px; }
select.form-control { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M6 8L1 3h10z' fill='%238a9098'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 36px; }

/* ─── Pagination ─── */
.pagination {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: var(--space-2xl);
}
.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 10px;
  font-size: 0.88rem;
  font-weight: 500;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  background: var(--white);
  transition: all var(--duration) var(--ease);
}
.pagination a:hover { border-color: var(--orange); color: var(--orange); }
.pagination .active {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--white);
}

/* ─── No Data ─── */
.no-data {
  text-align: center;
  padding: var(--space-3xl);
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ─── Search ─── */
.search-bar {
  display: flex;
  gap: var(--space-sm);
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
}
.search-bar input { flex: 1; }

/* ─── Back to Top ─── */
.back-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: var(--bg-darkest);
  color: var(--white);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: var(--shadow-md);
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration) var(--ease);
}
.back-top.visible { opacity: 1; visibility: visible; }
.back-top:hover { background: var(--orange); }

/* ─── Loading Placeholder ─── */
img[data-src] { background: var(--bg-light); min-height: 40px; }
img[data-src].loaded { background: none; }

/* ─── Utilities ─── */
.text-orange { color: var(--orange); }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.mt-lg { margin-top: var(--space-2xl); }
.mb-lg { margin-bottom: var(--space-2xl); }
.divider {
  width: 100%;
  height: 1px;
  background: var(--border-subtle);
  margin: var(--space-2xl) 0;
}
.section--dark .divider { background: rgba(255,255,255,0.06); }

/* Section number badge (for numbered sections) */
.num-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--orange);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  margin-right: 8px;
}

/* ─── Responsive ─── */
@media (max-width: 1024px) {
  :root { --header-height: 64px; }

  /* Hide desktop nav, show hamburger */
  .header__nav { display: none; }
  .header__cta { display: none; }
  .hamburger { display: flex; }

  .footer__grid { grid-template-columns: 1fr 1fr; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .data-wall { grid-template-columns: repeat(2, 1fr); }
  .page-layout { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .detail-layout { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .mfg-showcase { grid-template-columns: 1fr; }
  .news-card { grid-template-columns: 140px 1fr; }
  .supply-chain { gap: 0; }
  .supply-chain__step { min-width: 120px; padding: var(--space-md); }
  .supply-chain__step:not(:last-child)::after { display: none; }
  .list-grid--3 { grid-template-columns: repeat(2, 1fr); }
  .list-grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: var(--space-3xl) 0; }
  .hero__title { font-size: clamp(1.8rem, 8vw, 2.4rem); }
  .product-grid { grid-template-columns: 1fr 1fr; gap: var(--space-md); }
  .case-grid { grid-template-columns: 1fr 1fr; gap: var(--space-md); }
  .data-wall { grid-template-columns: repeat(2, 1fr); gap: var(--space-md); }
  .footer__grid { grid-template-columns: 1fr; gap: var(--space-xl); }
  .news-card { grid-template-columns: 1fr; }
  .news-card__image { aspect-ratio: 16/9; }
  .hero__scroll-indicator { display: none; }
  .supply-chain__step { min-width: 48%; }
  .detail-info__specs { grid-template-columns: 1fr; }
  .list-grid--3 { grid-template-columns: 1fr 1fr; }
  .list-grid--4 { grid-template-columns: 1fr 1fr; }
  .inner-banner { height: 220px; margin-top: var(--header-height); }
  .dealer-banner__modes { gap: var(--space-md); }
  .pagination a, .pagination span { min-width: 34px; height: 34px; font-size: 0.8rem; }
}

@media (max-width: 480px) {
  .container { padding: 0 var(--space-md); }
  .product-grid { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .data-wall { grid-template-columns: 1fr; }
  .hero__title { font-size: 1.6rem; }
  .hero__subtitle { font-size: 0.9rem; }
  .hero__actions { flex-direction: column; }
  .section-title { font-size: 1.5rem; }
  .supply-chain__step { min-width: 100%; }
  .list-grid--3 { grid-template-columns: 1fr; }
  .list-grid--4 { grid-template-columns: 1fr; }
  .back-top { bottom: 20px; right: 20px; }
}

/* zzm-reviewed-demo-layout-212; original ZIP unchanged */
@media (min-width: 992px) and (max-width: 1599px) {
  .header__inner { gap: 16px; }
  .header__nav { display: none; }
  .header__actions { margin-left: auto; flex-shrink: 0; }
  .header__cta { white-space: nowrap; flex-shrink: 0; }
  .hamburger { display: flex; flex-shrink: 0; margin-left: 8px; }
}
@media (min-width: 1600px) {
  .header__inner { max-width: none; width: 100%; padding-left: 32px; padding-right: 32px; gap: 16px; }
  .header__nav a { white-space: nowrap; }
  .header__logo { min-width: 0; max-width: 300px; flex-shrink: 0; }
  .header__logo-text { min-width: 0; }
  .header__logo-name, .header__logo-sub { display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .header__cta { white-space: nowrap; flex-shrink: 0; }
}