/* ============================================================
   鼎丰食品 — 综合食品加工OEM企业站 主样式表
   设计基调：深灰工业 + 钢蓝 + 橙色强调 + 信息密集
   风格：像工业制造技术手册，稳重专业
   第三方模板模式：{pboot:sitedomain}/skin/
   ============================================================ */

/* ========== Web Font Import ========== */


/* ========== CSS 变量 ========== */
:root {
  /* 主色调 */
  --gray-deep: #2D2D2D;
  --steel-blue: #2C3E50;
  --orange: #E87A20;
  --orange-hover: #D06A10;
  --orange-light: rgba(232, 122, 32, 0.15);
  --white: #FFFFFF;

  /* 背景层级 */
  --bg-dark: #1B1B1B;
  --bg-section: #1F1F1F;
  --bg-card: #252525;
  --bg-card-hover: #2A2A2A;
  --bg-overlay: rgba(0, 0, 0, 0.65);

  /* 边框 */
  --border: #3D3D3D;
  --border-light: #4A4A4A;
  --border-orange: rgba(232, 122, 32, 0.4);

  /* 文字 */
  --text-primary: #FFFFFF;
  --text-secondary: #B0B0B0;
  --text-muted: #707070;

  /* 功能色 */
  --success: #27AE60;
  --warning: #F39C12;
  --error: #E74C3C;

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;

  /* 阴影 */
  --shadow-card: 0 2px 12px rgba(0,0,0,0.3);
  --shadow-card-hover: 0 4px 24px rgba(232,122,32,0.12);
  --shadow-nav: 0 2px 20px rgba(0,0,0,0.5);

  /* 字体 — Inter(西文) + Noto Sans SC(中文) 专业现代 */
  --font-body: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "微软雅黑", sans-serif;
  --font-heading: "Noto Sans SC", "Inter", "PingFang SC", "Microsoft YaHei", "微软雅黑", sans-serif;
  --font-number: "Inter", "SF Mono", "Consolas", monospace;

  /* 间距 */
  --section-gap: 80px;
  --header-height: 72px;

  /* 过渡 */
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========== 基础重置 ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font-body);
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.75;
  overflow-x: hidden;
  min-height: 100vh;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  letter-spacing: 0.01em;
}

/* 中文排版优化 */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.35;
}

p { letter-spacing: 0.015em; }

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition); }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }
input, textarea, select { font: inherit; color: inherit; }

/* ========== 容器 ========== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ========== 区块通用 ========== */
.section {
  padding: var(--section-gap) 0;
}

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

.section--darker {
  background: var(--bg-dark);
}

/* ========== 区块标题组 ========== */
.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 12px;
  padding: 4px 12px;
  border: 1px solid var(--border-orange);
  border-radius: 2px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}

.section-subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* 区块标题左对齐变体 */
.section-header--left {
  text-align: left;
}

.section-header--left .section-subtitle {
  margin: 0;
}

/* ========== 按钮系统 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  letter-spacing: 0.02em;
  white-space: nowrap;
  cursor: pointer;
}

.btn--primary {
  background: var(--orange);
  color: var(--white);
  border: 1px solid var(--orange);
}
.btn--primary:hover {
  background: var(--orange-hover);
  border-color: var(--orange-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(232,122,32,0.3);
}

.btn--outline {
  background: transparent;
  color: var(--orange);
  border: 1px solid var(--orange);
}
.btn--outline:hover {
  background: var(--orange);
  color: var(--white);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn--ghost:hover {
  color: var(--orange);
  border-color: var(--orange);
}

.btn--white {
  background: var(--white);
  color: var(--gray-deep);
  border: 1px solid var(--white);
}
.btn--white:hover {
  background: #E8E8E8;
  transform: translateY(-1px);
}

/* ========== Header 导航栏 ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(27, 27, 27, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: all var(--transition);
  height: var(--header-height);
}

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

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
}

/* Logo */
.header__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.header__logo-icon {
  width: 42px;
  height: 42px;
  background: var(--orange);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--white);
}

.header__logo-text {
  display: flex;
  flex-direction: column;
}

.header__logo-name {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.04em;
  line-height: 1.2;
}

.header__logo-sub {
  font-size: 0.6rem;
  color: var(--orange);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* 主导航 */
.header__nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.header__nav-item {
  position: relative;
}

.header__nav-link {
  display: flex;
  align-items: center;
  padding: 8px 14px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.header__nav-link:hover,
.header__nav-link.active {
  color: var(--orange);
  background: var(--orange-light);
}

/* 下拉菜单 */
.header__dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: #222;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 8px 0;
  min-width: 160px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  z-index: 60;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

.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: 0.85rem;
  color: var(--text-secondary);
  transition: all var(--transition);
  white-space: nowrap;
}

.header__dropdown a:hover {
  color: var(--orange);
  background: rgba(232,122,32,0.08);
}

/* 右侧操作 */
.header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header__cta {
  padding: 9px 20px;
  background: var(--orange);
  color: var(--white);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
}

.header__cta:hover {
  background: var(--orange-hover);
  transform: translateY(-1px);
}

/* 汉堡菜单 (独立于 header__actions, 13.4) */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 110;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

.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);
}

/* ========== 移动端菜单 ========== */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  height: 100vh;
  background: #1B1B1B;
  z-index: 105;
  overflow-y: auto;
  transition: right var(--transition);
  padding: 80px 24px 40px;
  border-left: 1px solid var(--border);
}

.mobile-nav.active {
  right: 0;
}

.mobile-nav__link {
  display: block;
  padding: 14px 16px;
  font-size: 1rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.mobile-nav__link:hover {
  color: var(--orange);
  background: var(--orange-light);
}

.mobile-nav__sub {
  padding-left: 16px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.mobile-nav__sub.open {
  max-height: 400px;
}

.mobile-nav__sub a {
  display: block;
  padding: 10px 16px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.mobile-nav__overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 104;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.mobile-nav__overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ========== Hero Banner ========== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
  margin-top: var(--header-height);
}

.hero__swiper {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero__slide {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom,
    rgba(0,0,0,0.5) 0%,
    rgba(0,0,0,0.35) 40%,
    rgba(27,27,27,0.9) 100%);
  z-index: 2;
}

.hero__content {
  position: relative;
  z-index: 3;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero__tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  color: var(--orange);
  margin-bottom: 16px;
  padding: 6px 14px;
  border: 1px solid var(--orange);
  border-radius: 2px;
  width: fit-content;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 20px;
  max-width: 700px;
  letter-spacing: 0.02em;
}

.hero__title span {
  color: var(--orange);
}

.hero__subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 36px;
  max-width: 550px;
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.5);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  animation: float 2s ease-in-out infinite;
}

.hero__scroll-line {
  width: 1px;
  height: 30px;
  background: var(--orange);
}

.hero__pagination.swiper-pagination-bullets {
  bottom: 100px !important;
}

.hero__pagination .swiper-pagination-bullet {
  width: 10px;
  height: 10px;
  background: rgba(255,255,255,0.4);
  opacity: 1;
}

.hero__pagination .swiper-pagination-bullet-active {
  background: var(--orange);
}

/* ========== 统计数据条 ========== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.stats-bar__item {
  background: var(--bg-card);
  padding: 36px 20px;
  text-align: center;
  transition: background var(--transition);
}

.stats-bar__item:hover {
  background: var(--bg-card-hover);
}

.stats-bar__number {
  font-family: var(--font-number);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--orange);
  line-height: 1.1;
  margin-bottom: 6px;
}

.stats-bar__number span {
  font-size: 1.5rem;
}

.stats-bar__label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
}

/* ========== 卡片系统 ========== */
/* 深色卡片 + 橙色细边框 */
.card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}

.card:hover {
  border-color: var(--border-orange);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px);
}

.card__image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: #1A1A1A;
}

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

.card:hover .card__image img {
  transform: scale(1.05);
}

.card__body {
  padding: 20px;
}

.card__tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--orange);
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.card__title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.card__meta i {
  color: var(--orange);
  font-size: 0.7rem;
}

/* ========== 网格系统 ========== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ========== 业务图标卡 ========== */
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  text-align: center;
  transition: all var(--transition);
}

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

.service-card__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: var(--orange-light);
  border: 1px solid var(--border-orange);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--orange);
  transition: all var(--transition);
}

.service-card:hover .service-card__icon {
  background: var(--orange);
  color: var(--white);
}

.service-card__title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.service-card__desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ========== 优势卡片（横向） ========== */
.advantage-card {
  display: flex;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: all var(--transition);
}

.advantage-card:hover {
  border-color: var(--border-orange);
}

.advantage-card__icon {
  flex-shrink: 0;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--orange);
}

.advantage-card__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.advantage-card__desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ========== 车间展示 ========== */
.workshop-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.workshop-showcase__main {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 4/3;
}

.workshop-showcase__main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.workshop-showcase__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 16px;
}

.workshop-showcase__item {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 4/3;
  transition: all var(--transition);
}

.workshop-showcase__item:hover {
  border-color: var(--border-orange);
}

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

.workshop-showcase__item:hover img {
  transform: scale(1.08);
}

/* ========== CTA区块 ========== */
.cta-section {
  padding: 80px 0;
  text-align: center;
  background: var(--bg-card);
  border-top: 1px solid var(--border-orange);
  border-bottom: 1px solid var(--border-orange);
}

.cta-section__title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

/* ========== 内页Banner ========== */
.inner-banner {
  position: relative;
  height: 320px;
  margin-top: var(--header-height);
  overflow: hidden;
}

.inner-banner__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-color: var(--steel-blue);
}

.inner-banner__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 1;
}

.inner-banner__content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 20px;
}

.inner-banner__title {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}

.inner-banner__subtitle {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.65);
  letter-spacing: 0.04em;
}

/* ========== 面包屑 ========== */
.breadcrumb-bar {
  background: var(--bg-section);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--orange); }
.breadcrumb i { font-size: 0.6rem; color: var(--text-muted); }

/* ========== 内页布局 ========== */
.page {
  display: flex;
  gap: 40px;
  padding: 50px 0;
}

/* 侧边栏 */
.sidebar {
  width: 260px;
  flex-shrink: 0;
}

.sidebar__title {
  background: var(--steel-blue);
  color: var(--white);
  padding: 18px 20px;
  font-size: 1.05rem;
  font-weight: 600;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  letter-spacing: 0.04em;
}

.sidebar__nav {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  overflow: hidden;
}

.sidebar__nav a {
  display: block;
  padding: 14px 20px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  transition: all var(--transition);
}

.sidebar__nav a:last-child { border-bottom: none; }

.sidebar__nav a:hover,
.sidebar__nav a.active {
  color: var(--orange);
  background: var(--orange-light);
  border-left: 3px solid var(--orange);
  padding-left: 17px;
}

/* 主内容区 */
.page__content {
  flex: 1;
  min-width: 0;
}

/* ========== 详情页 ========== */
.detail__header {
  margin-bottom: 32px;
}

.detail__title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  line-height: 1.4;
}

.detail__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.detail__meta span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.detail__meta i {
  color: var(--orange);
  margin-right: 4px;
}

.detail__body {
  color: var(--text-secondary);
  line-height: 1.9;
  font-size: 0.95rem;
}

.detail__body img {
  border-radius: var(--radius-md);
  margin: 20px 0;
  max-width: 100%;
}

.detail__body p {
  margin-bottom: 16px;
}

.detail__body h2,
.detail__body h3 {
  color: var(--text-primary);
  margin: 28px 0 14px;
}

/* 参数卡片 */
.detail__params {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.detail__param {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  text-align: center;
}

.detail__param-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}

.detail__param-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* 上下篇 */
.detail__pager {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 48px;
  padding: 20px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 12px;
}

.detail__pager a {
  color: var(--orange);
}

/* 相关推荐 */
.related-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin: 48px 0 24px;
  color: var(--text-primary);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* ========== 列表页筛选栏 ========== */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 0;
  flex-wrap: wrap;
}

.filter-bar a {
  padding: 8px 18px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 2px;
  transition: all var(--transition);
  white-space: nowrap;
}

.filter-bar a:hover,
.filter-bar a.active {
  color: var(--orange);
  border-color: var(--orange);
  background: var(--orange-light);
}

/* ========== 分页 ========== */
.pagination {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: 48px;
}

.pagination a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.pagination a:hover,
.pagination a.active {
  color: var(--white);
  background: var(--orange);
  border-color: var(--orange);
}

.pagination a.disabled {
  opacity: 0.35;
  pointer-events: none;
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state i {
  font-size: 3rem;
  margin-bottom: 16px;
  color: var(--border);
}

.empty-state p {
  font-size: 0.95rem;
}

/* ========== Footer ========== */
.footer {
  background: #141414;
  border-top: 1px solid var(--border);
}

.footer__top-line {
  height: 3px;
  background: var(--orange);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr 1fr;
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px 40px;
}

.footer__brand-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 16px 0 20px;
}

.footer__social {
  display: flex;
  gap: 10px;
}

.footer__social a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: all var(--transition);
}

.footer__social a:hover {
  color: var(--orange);
  border-color: var(--orange);
}

.footer__col-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--orange);
  display: inline-block;
  letter-spacing: 0.04em;
}

.footer__links a {
  display: block;
  padding: 6px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer__links a:hover {
  color: var(--orange);
}

.footer__contact-item {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.85rem;
  color: var(--text-muted);
  align-items: flex-start;
}

.footer__contact-item i {
  color: var(--orange);
  margin-top: 3px;
  flex-shrink: 0;
}

.footer__qrcode {
  width: 120px;
  height: 120px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
}

/* 友情链接 */
.friend-links {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 20px 0;
  border-top: 1px solid var(--border);
}

.friend-links__label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 600;
}

.friend-links a {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.friend-links a:hover {
  color: var(--orange);
}

/* 底部版权 */
.footer__bottom {
  background: #0D0D0D;
  border-top: 1px solid var(--border);
  padding: 18px 0;
}

.footer__bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ========== 返回顶部 ========== */
.back-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  background: var(--orange);
  color: var(--white);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition);
  box-shadow: 0 4px 16px rgba(232,122,32,0.3);
}

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

.back-top:hover {
  background: var(--orange-hover);
  transform: translateY(-2px);
}

/* ========== 在线客服按钮 ========== */
.online-service {
  position: fixed;
  bottom: 84px;
  right: 30px;
  width: 44px;
  height: 44px;
  background: var(--orange);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  z-index: 90;
  box-shadow: 0 4px 16px rgba(232,122,32,0.3);
  animation: pulse-border 2s infinite;
  cursor: pointer;
}

@keyframes pulse-border {
  0%, 100% { box-shadow: 0 0 0 0 rgba(232,122,32,0.4); }
  50% { box-shadow: 0 0 0 12px rgba(232,122,32,0); }
}

/* ========== 表单系统 ========== */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 6px;
}

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

.form-control {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: border-color var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--orange);
  box-shadow: 0 0 0 2px var(--orange-light);
}

.form-control::placeholder {
  color: var(--text-muted);
}

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

/* ========== 联系信息卡 ========== */
.contact-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
}

.contact-info-card__item {
  display: flex;
  gap: 14px;
  margin-bottom: 24px;
  align-items: flex-start;
}

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

.contact-info-card__icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  background: var(--orange-light);
  border: 1px solid var(--border-orange);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--orange);
  font-size: 1rem;
}

.contact-info-card__label {
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-bottom: 2px;
}

.contact-info-card__value {
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.5;
}

/* ========== Tab切换 ========== */
.tab-nav {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border);
  margin-bottom: 32px;
}

.tab-nav__btn {
  padding: 14px 28px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition);
}

.tab-nav__btn:hover {
  color: var(--text-secondary);
}

.tab-nav__btn.active {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

/* ========== 关于我们特色列表 ========== */
.about-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.about-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.about-feature i {
  color: var(--orange);
  font-size: 0.85rem;
}

/* ========== 新闻列表行样式 ========== */
.news-list-item {
  display: flex;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
  transition: all var(--transition);
}

.news-list-item:hover {
  padding-left: 8px;
}

.news-list-item__image {
  width: 220px;
  height: 150px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.news-list-item__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.news-list-item:hover .news-list-item__image img {
  transform: scale(1.05);
}

.news-list-item__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.news-list-item__title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.4;
}

.news-list-item:hover .news-list-item__title {
  color: var(--orange);
}

.news-list-item__desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 10px;
}

.news-list-item__date {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ========== 搜索框 ========== */
.search-form {
  display: flex;
  gap: 10px;
  margin-bottom: 32px;
}

.search-form input {
  flex: 1;
}

/* ========== 图片懒加载 ========== */
img[data-src] {
  opacity: 0;
  transition: opacity 0.4s ease;
}

img[data-src].loaded {
  opacity: 1;
}

/* ========== 动画 ========== */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========== 响应式 768px ========== */
@media (max-width: 1024px) {
  :root { --section-gap: 60px; }

  .header__nav { display: none; }
  .header__cta { display: none; }
  .hamburger { display: flex; }

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

  .page {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
  }

  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }

  .workshop-showcase {
    grid-template-columns: 1fr;
  }

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

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

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

@media (max-width: 768px) {
  :root {
    --section-gap: 48px;
    --header-height: 60px;
  }

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

  .hero {
    height: 80vh;
    min-height: 480px;
  }

  .hero__title {
    font-size: 1.8rem;
  }

  .hero__subtitle {
    font-size: 0.9rem;
  }

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

  .footer__bottom-inner {
    flex-direction: column;
    text-align: center;
  }

  .grid-4, .grid-3, .grid-2 {
    grid-template-columns: 1fr;
  }

  .stats-bar {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .news-list-item {
    flex-direction: column;
  }

  .news-list-item__image {
    width: 100%;
    height: 180px;
  }

  .filter-bar a {
    font-size: 0.8rem;
    padding: 6px 14px;
  }

  .inner-banner {
    height: 240px;
  }

  .inner-banner__title {
    font-size: 1.6rem;
  }

  .search-form {
    flex-direction: column;
  }

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

  .hero__pagination.swiper-pagination-bullets {
    bottom: 80px !important;
  }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }

  .section-title { font-size: 1.3rem; }

  .hero {
    height: 70vh;
    min-height: 400px;
  }

  .hero__title { font-size: 1.5rem; }
  .hero__actions { flex-direction: column; }
  .hero .btn { width: 100%; justify-content: center; }

  .stats-bar { grid-template-columns: 1fr 1fr; }
  .stats-bar__number { font-size: 1.8rem; }

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

  .tab-nav__btn { padding: 10px 16px; font-size: 0.82rem; }

  .workshop-showcase__grid { grid-template-columns: 1fr; }
}

/* ========== 主题色覆盖 (AOS动画适配) ========== */
[data-aos] {
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========== 暗色主题下Swiper分页器覆写 ========== */
.swiper-pagination-bullet {
  background: rgba(255,255,255,0.35);
  opacity: 1;
}
.swiper-pagination-bullet-active {
  background: var(--orange);
}

/* ========== 印刷/手册风格元素 ========== */
.tech-spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.tech-spec-table th {
  background: var(--steel-blue);
  color: var(--white);
  padding: 14px 16px;
  text-align: left;
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.tech-spec-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

.tech-spec-table tr:nth-child(even) td {
  background: rgba(255,255,255,0.02);
}

/* 工业标签组 */
.industrial-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 2px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
}

.industrial-tag i {
  color: var(--orange);
  font-size: 0.6rem;
}

/* 分隔条 */
.divider--orange {
  width: 60px;
  height: 3px;
  background: var(--orange);
  margin: 16px 0;
}

/* 证书/认证展示 */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.cert-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 24px;
  text-align: center;
  transition: all var(--transition);
}

.cert-item:hover {
  border-color: var(--orange);
}

.cert-item i {
  font-size: 2rem;
  color: var(--orange);
  margin-bottom: 12px;
}

.cert-item__name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.cert-item__desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

@media (max-width: 768px) {
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .cert-grid { grid-template-columns: 1fr; }
}

/* July 17: retain industrial style, compact workshop and service presentation. */
@media(max-width:768px){
 :root{--section-gap:32px}.section{padding-top:32px;padding-bottom:32px}.container{padding-left:18px;padding-right:18px}.hero{height:400px;min-height:400px;max-height:400px}.hero__content{padding:0 20px}.hero__title{font-size:28px;line-height:1.45}.hero__subtitle{font-size:13px;line-height:1.8}.hero__actions{flex-direction:row;flex-wrap:wrap;gap:10px}.hero .btn{width:auto;font-size:13px;padding:12px 18px}.hero__scroll{display:none}.hero__pagination.swiper-pagination-bullets{bottom:18px!important}
 [data-aos]{opacity:1!important;transform:none!important;transition:none!important}.section-header{margin-bottom:22px}.section-title{font-size:25px;line-height:1.4}.section-subtitle{font-size:13px;line-height:1.7}.section-tag{font-size:10px}.stats-bar{grid-template-columns:repeat(4,minmax(0,1fr));gap:1px}.stats-bar__item{padding:16px 4px}.stats-bar__number{font-size:24px}.stats-bar__label{font-size:10px;line-height:1.6}
 .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.service-card{padding:18px 12px;text-align:left}.service-card__icon{width:36px;height:36px;font-size:18px;margin:0 0 12px}.service-card__title{font-size:15px;margin-bottom:6px}.service-card__desc{font-size:12px}.workshop-showcase{grid-template-columns:1fr;gap:10px}.workshop-showcase__main{aspect-ratio:16/8}.workshop-showcase__grid{grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:auto;gap:10px}.workshop-showcase__item{aspect-ratio:16/10}
 .section>.container>[style*="grid-template-columns"]{grid-template-columns:minmax(0,1fr)!important;gap:18px!important}.section>.container>[style*="grid-template-columns"] img{max-height:210px;object-fit:cover}.section>.container>[style*="grid-template-columns"] p{font-size:13px;line-height:1.8!important}.section [style*="margin-top:36px"],.section [style*="margin-top:32px"]{margin-top:20px!important}
 .card{min-width:0}.card__image{aspect-ratio:4/3}.card__body{padding:12px}.card__title{font-size:15px;line-height:1.5;display:block;-webkit-line-clamp:unset;overflow:visible}.card__desc{font-size:12px;line-height:1.7}.card__tag{font-size:10px}.grid-3{grid-template-columns:1fr;gap:14px}.grid-3>.card{display:grid;grid-template-columns:90px minmax(0,1fr);gap:12px;padding:12px;align-items:start}.grid-3>.card .card__image{height:100px;aspect-ratio:auto}.grid-3>.card .card__body{padding:0;min-width:0}.grid-3>.card .card__title{font-size:15px}
 .grid-2{gap:12px}.advantage-card{padding:16px;gap:12px}.advantage-card__icon{width:28px;height:32px;font-size:20px}.advantage-card__title{font-size:15px}.advantage-card__desc{font-size:12px;line-height:1.7}.cert-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.cert-item{padding:16px 10px}.cert-item i{font-size:24px}
 .cta-section{padding:32px 18px}.cta-section__title{font-size:24px;line-height:1.5}.cta-section p{font-size:13px!important;margin-bottom:20px!important}.cta-section .btn{font-size:14px!important;padding:12px 22px!important}.footer__grid{grid-template-columns:minmax(0,1fr) 100px;gap:20px 12px;padding:28px 18px}.footer__grid>div{min-width:0}.footer__grid>div:nth-child(-n+2){grid-column:1/-1}.footer__brand-desc{font-size:12px;margin:10px 0}.footer__col-title{font-size:14px;margin-bottom:10px}.footer__links{display:flex;flex-wrap:wrap;gap:0 16px}.footer__links a{min-height:44px;display:flex;align-items:center;font-size:12px;padding:5px 0}.footer__contact-item{font-size:12px;gap:6px;overflow-wrap:anywhere}.footer__qrcode{width:100px;height:100px}.footer__bottom-inner{font-size:11px;overflow-wrap:anywhere}
 .inner-banner{height:155px!important}.inner-banner__title{font-size:25px}.inner-banner__subtitle{font-size:12px}.breadcrumb{font-size:11px;flex-wrap:wrap}.detail__title{font-size:24px}.detail__body{font-size:14px;line-height:1.8;overflow-wrap:anywhere}.detail__body img{max-width:100%!important;height:auto!important}.detail__body table{display:block;max-width:100%;overflow:auto}.detail__params{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.detail__param{min-width:0;padding:12px;overflow-wrap:anywhere}.related-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.news-list-item{flex-direction:row;align-items:start;gap:12px;padding:12px}.news-list-item__image{width:86px;height:96px;flex-shrink:0}.news-list-item__body{min-width:0;padding:0}.news-list-item__title{font-size:15px}.news-list-item__desc{font-size:12px}.contact-grid{gap:24px}.form-control{min-width:0;max-width:100%;font-size:16px}.form-group{min-width:0}form [style*="grid-template-columns"]{grid-template-columns:minmax(0,1fr)!important;gap:0!important}.form-group>[style*="display:flex"]{flex-wrap:wrap}.pagination{flex-wrap:wrap}.pagination a{min-width:44px;min-height:44px}
 .header:has(.hamburger.active){z-index:110}.mobile-nav{top:var(--header-height);height:calc(100dvh - var(--header-height));width:calc(100vw - 44px);max-width:340px;right:-110vw;padding:16px}.mobile-nav:not(.active){visibility:hidden}.mobile-nav.active{right:0}.mobile-nav__inner>a:first-child{display:none!important}.mobile-nav__link{font-size:15px;min-height:48px;padding:12px;border-bottom:1px solid var(--border)}.mobile-nav__sub:not(.open){visibility:hidden}.mobile-nav__sub.open{max-height:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));padding:8px;gap:4px;background:var(--orange-light)}.mobile-nav__sub a{font-size:12px;min-height:44px;padding:10px 8px}
}
@media(max-width:359px){.hero__title{font-size:25px}.stats-bar__number{font-size:21px}.grid-3>.card{grid-template-columns:72px minmax(0,1fr);gap:10px}.card__title{font-size:14px}.card__body{padding:10px}}

@media(max-width:768px){.section [style*="padding:36px"]:has(form){padding:20px!important}form>[style*="display:flex"]{flex-wrap:wrap}.search-form input{min-width:0;max-width:100%}}

@media(max-width:768px){.hero__title{text-wrap:balance}.workshop-showcase+div p{font-size:13px;line-height:1.8}}