/**
 * 铝影系统门窗 — 企业官网主样式
 * 深灰科技建筑外立面基调
 * 主色：#1A1A1A(深灰) / #A0AEC0(银灰) / #1A6BB0(科技蓝) / #FFF
 * 纯原生 CSS，无框架依赖
 * 第三方模板模式：{pboot:sitedomain}/skin/
 */

/* ============================================================
   CSS 变量体系
   ============================================================ */
:root {
  /* 基底色 — 深灰建筑基调 */
  --bg-deep: #1A1A1A;
  --bg-dark: #141414;
  --bg-section: #0F1115;
  --bg-card: #1E2024;
  --bg-card-hover: #24272C;
  --bg-input: #1E2024;

  /* 点缀色 — 科技蓝 + 银灰 */
  --accent: #1A6BB0;
  --accent-light: #2196F3;
  --accent-glow: rgba(26, 107, 176, 0.25);
  --accent-dim: rgba(26, 107, 176, 0.08);
  --silver: #A0AEC0;
  --silver-dim: rgba(160, 174, 192, 0.15);
  --silver-border: rgba(160, 174, 192, 0.25);

  /* 文字色阶 */
  --text-primary: #FFFFFF;
  --text-secondary: #CBD5E1;
  --text-muted: #8892A4;
  --text-dark: #64748B;

  /* 边框 */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-card: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(26, 107, 176, 0.4);

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 24px rgba(26, 107, 176, 0.15);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);

  /* 圆角 — 小圆角精密感 */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;

  /* 间距 */
  --section-py: 90px;
  --section-py-sm: 60px;
  --container-max: 1200px;
  --header-h: 70px;

  /* 过渡 */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;

  /* 字体 — 高级系统字体栈（无需外部加载，中英文完美渲染） */
  --font-heading: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei UI', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', 'Segoe UI', sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei UI', 'Microsoft YaHei', 'Noto Sans SC', 'Segoe UI', 'Helvetica Neue', sans-serif;
  --font-mono: 'SF Mono', 'JetBrains Mono', 'Cascadia Code', 'Consolas', 'Menlo', 'Liberation Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-secondary);
  background: var(--bg-deep);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'kern' 1, 'liga' 1, 'calt' 1;
  font-kerning: normal;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

a:hover { color: var(--accent-light); }

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

ul, ol { list-style: none; }

input, button, textarea, select {
  font: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: none;
}

button { cursor: pointer; }

/* ============================================================
   排版
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  line-height: 1.25;
  font-weight: 600;
  letter-spacing: -0.01em;
}

h1 { font-weight: 700; letter-spacing: -0.02em; }
h2 { font-weight: 600; letter-spacing: -0.01em; }
h3 { font-weight: 600; }

/* ============================================================
   布局容器
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: var(--section-py) 0;
}

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

.section--sm {
  padding: var(--section-py-sm) 0;
}

.section__tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 12px;
  position: relative;
  padding-left: 14px;
}

.section__tag::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 16px;
  background: var(--accent);
  border-radius: 2px;
}

.section__title {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.section__subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 600px;
}

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

.section__header .section__title { margin-bottom: 12px; }
.section__header .section__subtitle { margin: 0 auto; }

/* ============================================================
   按钮系统
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-out);
  cursor: pointer;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.btn--primary {
  background: var(--accent);
  color: #FFF;
  border: 1px solid var(--accent);
}

.btn--primary:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
  color: #FFF;
  box-shadow: var(--shadow-glow);
}

.btn--outline {
  background: transparent;
  color: var(--silver);
  border: 1px solid var(--silver-border);
}

.btn--outline:hover {
  border-color: var(--accent);
  color: var(--accent-light);
  background: var(--accent-dim);
}

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

.btn--ghost:hover {
  color: var(--text-primary);
  border-color: var(--border-subtle);
}

.btn--white {
  background: #FFF;
  color: var(--bg-deep);
  border: 1px solid #FFF;
}

.btn--white:hover {
  background: var(--silver);
  border-color: var(--silver);
  color: var(--bg-deep);
}

.btn--lg {
  padding: 15px 36px;
  font-size: 1rem;
}

.btn--sm {
  padding: 8px 18px;
  font-size: 0.82rem;
}

/* ============================================================
   Header — 深色固定导航
   ============================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(26, 26, 26, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--duration-normal) var(--ease-out);
}

.header__inner {
  display: flex;
  align-items: center;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
  gap: 32px;
}

/* Logo */
.header__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  color: var(--text-primary);
}

.header__logo:hover { color: var(--text-primary); }

.header__logo-icon {
  width: 38px;
  height: 38px;
  background: var(--accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFF;
  font-size: 1.1rem;
}

.header__logo-text { line-height: 1.2; }

.header__logo-name {
  display: block;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.header__logo-sub {
  display: block;
  font-size: 0.62rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* 主导航 */
.header__nav {
  display: flex;
  align-items: center;
  gap: 0;
  flex: 1;
}

.header__nav-link {
  display: flex;
  align-items: center;
  padding: 10px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
}

.header__nav-link:hover,
.header__nav-link.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

/* 导航下拉 */
.header__nav-item {
  position: relative;
}

.header__nav-item > .header__nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
}

.header__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 160px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 6px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--duration-fast) var(--ease-out);
  z-index: 60;
  box-shadow: var(--shadow-lg);
}

.header__nav-item:hover .header__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(4px);
}

.header__dropdown a {
  display: block;
  padding: 9px 20px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  white-space: nowrap;
  transition: all var(--duration-fast) var(--ease-out);
}

.header__dropdown a:hover {
  background: var(--accent-dim);
  color: var(--text-primary);
}

/* 右侧操作区 */
.header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.header__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--accent);
  color: #FFF;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-out);
}

.header__cta:hover {
  background: var(--accent-light);
  color: #FFF;
  box-shadow: var(--shadow-glow);
}

/* 汉堡菜单 — 独立在 header__actions 外 (13.4) */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 110;
  flex-shrink: 0;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 1px;
  transition: all var(--duration-fast) var(--ease-out);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   移动端侧滑菜单
   ============================================================ */
.mobile-nav {
  position: fixed;
  top: 0;
  right: 0;
  width: 300px;
  max-width: 85vw;
  height: 100vh;
  background: var(--bg-dark);
  z-index: 105;
  transform: translateX(100%);
  transition: transform var(--duration-normal) var(--ease-out);
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.mobile-nav.active {
  transform: translateX(0);
}

.mobile-nav__inner {
  padding: 80px 24px 40px;
}

.mobile-nav__link {
  display: block;
  padding: 14px 0;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-subtle);
  transition: color var(--duration-fast);
}

.mobile-nav__link:hover { color: var(--text-primary); }

.mobile-nav__sub {
  display: none;
  padding-left: 16px;
}

.mobile-nav__sub.open { display: block; }

.mobile-nav__sub a {
  display: block;
  padding: 10px 0;
  font-size: 0.92rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-subtle);
}

.mobile-nav__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-subtle);
  cursor: pointer;
}

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

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

/* ============================================================
   Hero / Banner — 全屏深色轮播
   ============================================================ */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  max-height: 800px;
  overflow: hidden;
  background: var(--bg-deep);
}

.hero .swiper {
  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(180deg, rgba(26,26,26,0.3) 0%, rgba(26,26,26,0.5) 50%, rgba(26,26,26,0.85) 100%);
  z-index: 2;
}

.hero__content {
  position: absolute;
  left: 50%;
  bottom: 20%;
  transform: translateX(-50%);
  z-index: 3;
  text-align: left;
  width: 100%;
  max-width: var(--container-max);
  padding: 0 20px;
}

.hero__title {
  font-size: 3rem;
  font-weight: 700;
  color: #FFF;
  letter-spacing: 0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
  max-width: 680px;
}

.hero__subtitle {
  font-size: 1.1rem;
  color: var(--silver);
  margin-bottom: 32px;
  max-width: 560px;
  line-height: 1.6;
}

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

.hero__actions .btn {
  font-size: 0.95rem;
  padding: 14px 32px;
}

.hero-pagination {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  gap: 10px;
}

.hero-pagination .swiper-pagination-bullet {
  width: 10px;
  height: 10px;
  background: rgba(255, 255, 255, 0.4);
  opacity: 1;
  border-radius: 50%;
  transition: all var(--duration-fast);
}

.hero-pagination .swiper-pagination-bullet-active {
  background: var(--accent);
  width: 28px;
  border-radius: 5px;
}

/* 滚动指示器 */
.hero__scroll {
  position: absolute;
  bottom: 90px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  animation: scrollPulse 2s ease-in-out infinite;
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--silver), transparent);
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.6; transform: translateX(-50%) translateY(0); }
  50% { opacity: 1; transform: translateX(-50%) translateY(8px); }
}

/* ============================================================
   卡片系统
   ============================================================ */
/* 基础卡片 */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out);
  cursor: pointer;
}

.card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.card__image {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: var(--bg-dark);
}

.card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

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

.card__image--aspect {
  position: relative;
  padding-bottom: 66%;
}

.card__image--aspect img {
  position: absolute;
  inset: 0;
}

.card__body {
  padding: 20px 24px 24px;
}

.card__tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--accent-light);
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.card__title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}

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

.card__meta i { color: var(--accent-light); font-size: 0.75rem; }

/* 产品卡片 — 带扩展数据行 */
.card--product .card__specs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
}

.card--product .card__spec {
  font-size: 0.76rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.03);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
}

.card--product .card__spec strong {
  color: var(--accent-light);
  font-weight: 500;
}

/* 案例卡片 */
.card--case {
  position: relative;
}

.card--case .card__overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px 24px;
  background: linear-gradient(to top, rgba(0,0,0,0.85), transparent);
  z-index: 2;
}

.card--case .card__overlay-title {
  font-size: 1rem;
  font-weight: 600;
  color: #FFF;
  margin-bottom: 4px;
}

.card--case .card__overlay-sub {
  font-size: 0.8rem;
  color: var(--silver);
}

/* 新闻卡片 — 左图右文 */
.card--news {
  display: flex;
  flex-direction: row;
  gap: 20px;
}

.card--news .card__image {
  width: 200px;
  flex-shrink: 0;
  min-height: 140px;
}

.card--news .card__body {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.card--news .card__date {
  font-size: 0.78rem;
  color: var(--text-dark);
  font-family: var(--font-mono);
}

/* ============================================================
   列表网格
   ============================================================ */
.list-grid {
  display: grid;
  gap: 24px;
}

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

/* ============================================================
   统计数据 — 蓝色数字滚动
   ============================================================ */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-item__number {
  font-size: 3rem;
  font-weight: 700;
  font-family: var(--font-heading);
  color: var(--accent-light);
  line-height: 1.1;
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.stat-item__number span {
  display: inline-block;
}

.stat-item__label {
  font-size: 0.88rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.stat-item__suffix {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--accent-light);
}

/* ============================================================
   特色/亮点卡片
   ============================================================ */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  transition: all var(--duration-normal) var(--ease-out);
}

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

.feature-card__icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 20px;
  background: var(--accent-dim);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--accent-light);
}

.feature-card__title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.feature-card__desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ============================================================
   性能参数展示
   ============================================================ */
.perf-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.perf-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--duration-normal) var(--ease-out);
}

.perf-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-card);
}

.perf-card__icon {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 16px;
}

.perf-card__value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
  font-family: var(--font-mono);
}

.perf-card__unit {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.perf-card__name {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.perf-card__desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 6px;
}

/* ============================================================
   CTA 区域
   ============================================================ */
.cta-section {
  background: var(--bg-dark);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: var(--section-py) 0;
  text-align: center;
}

.cta-section__title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.cta-section__subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.cta-box {
  background: var(--bg-card);
  border: 1px solid var(--silver-border);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

/* ============================================================
   友情链接
   ============================================================ */
.friend-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 16px;
  padding: 16px 0;
}

.friend-links__label {
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

.friend-links a {
  font-size: 0.82rem;
  color: var(--text-dark);
  transition: color var(--duration-fast);
}

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

/* ============================================================
   Footer — 四列深色
   ============================================================ */
.footer {
  background: var(--bg-dark);
  padding: 60px 0 0;
  border-top: 1px solid var(--border-subtle);
}

.footer__top-line {
  height: 3px;
  background: var(--accent);
  margin-bottom: 60px;
  opacity: 0.8;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr 1.2fr;
  gap: 40px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px 50px;
}

.footer__brand-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  line-height: 1.7;
}

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

.footer__social a {
  width: 38px;
  height: 38px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  color: var(--text-muted);
  transition: all var(--duration-fast) var(--ease-out);
}

.footer__social a:hover {
  border-color: var(--accent);
  color: var(--accent-light);
  background: var(--accent-dim);
}

.footer__col-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
  padding-bottom: 12px;
  position: relative;
}

.footer__col-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 30px;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

.footer__links a {
  display: block;
  font-size: 0.88rem;
  color: var(--text-muted);
  padding: 6px 0;
  transition: all var(--duration-fast);
}

.footer__links a:hover {
  color: var(--text-primary);
  padding-left: 6px;
}

.footer__contact-item {
  display: flex;
  gap: 10px;
  font-size: 0.86rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  align-items: flex-start;
}

.footer__contact-item i {
  color: var(--accent-light);
  margin-top: 3px;
  font-size: 0.82rem;
  width: 16px;
  text-align: center;
}

.footer__qrcode {
  width: 120px;
  height: 120px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.5;
}

.footer__bottom {
  border-top: 1px solid var(--border-subtle);
  padding: 20px 0;
}

.footer__bottom-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer__bottom a {
  color: var(--text-muted);
}

.footer__bottom a:hover {
  color: var(--accent-light);
}

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

.inner-banner__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.inner-banner__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(26,26,26,0.7) 0%, rgba(26,26,26,0.85) 100%);
  z-index: 2;
}

.inner-banner__content {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.inner-banner__title {
  font-size: 2.2rem;
  font-weight: 700;
  color: #FFF;
  margin-bottom: 8px;
}

.inner-banner__subtitle {
  font-size: 0.95rem;
  color: var(--silver);
}

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

.breadcrumb {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--accent-light); }
.breadcrumb i { margin: 0 6px; font-size: 0.65rem; color: var(--text-dark); }

/* ============================================================
   内页布局 — 侧边栏 + 内容
   ============================================================ */
.page-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
  padding: 50px 0 70px;
}

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

.sidebar__header {
  background: var(--accent);
  padding: 22px 20px;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.sidebar__header h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #FFF;
}

.sidebar__header p {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.75);
  margin-top: 2px;
}

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

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

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

.sidebar__nav a:hover,
.sidebar__nav a.active {
  background: var(--accent-dim);
  color: var(--accent-light);
  padding-left: 26px;
}

/* 内容区 */
.page-content {
  min-width: 0;
}

/* ============================================================
   产品列表页
   ============================================================ */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.filter-bar__count {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.filter-bar__count strong {
  color: var(--accent-light);
}

/* ============================================================
   产品详情页
   ============================================================ */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.product-detail__gallery {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.product-detail__gallery .swiper-slide img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.product-detail__info h1 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.product-detail__info .subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.product-detail__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.product-detail__meta-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  font-size: 0.84rem;
}

.product-detail__meta-item .label {
  color: var(--text-muted);
  font-size: 0.74rem;
  display: block;
}

.product-detail__meta-item .value {
  color: var(--text-primary);
  font-weight: 600;
  font-family: var(--font-mono);
}

.product-detail__specs {
  margin-top: 28px;
}

.product-detail__specs h3 {
  font-size: 1.05rem;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
}

.specs-table tr {
  border-bottom: 1px solid var(--border-subtle);
}

.specs-table td {
  padding: 12px 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.specs-table td:first-child {
  color: var(--text-muted);
  width: 120px;
}

.specs-table td:last-child {
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-weight: 500;
}

/* 详情页 Tab */
.detail-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border-subtle);
  margin-top: 60px;
  margin-bottom: 24px;
}

.detail-tab {
  padding: 14px 28px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--duration-fast);
}

.detail-tab:hover,
.detail-tab.active {
  color: var(--text-primary);
  border-bottom-color: var(--accent);
}

.detail-tab-panel {
  display: none;
}

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

/* ============================================================
   详情页正文内容
   ============================================================ */
.detail__body {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.85;
}

.detail__body h2 { font-size: 1.5rem; margin: 32px 0 16px; }
.detail__body h3 { font-size: 1.2rem; margin: 24px 0 12px; }
.detail__body p { margin-bottom: 16px; }
.detail__body img { border-radius: var(--radius-md); margin: 20px 0; }
.detail__body table { width: 100%; border-collapse: collapse; margin: 20px 0; }
.detail__body table td,
.detail__body table th { border: 1px solid var(--border-subtle); padding: 10px 14px; font-size: 0.88rem; }
.detail__body table th { background: var(--bg-card); color: var(--text-primary); font-weight: 600; }
.detail__body ul, .detail__body ol { margin: 12px 0; padding-left: 24px; }
.detail__body li { margin-bottom: 6px; list-style: disc; }

/* 文章详情头部 */
.detail-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.detail-header h1 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.detail-header__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.84rem;
  color: var(--text-muted);
}

.detail-header__meta i {
  color: var(--accent-light);
  margin-right: 4px;
}

/* 上一篇/下一篇 */
.prev-next {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 0.88rem;
}

.prev-next a {
  color: var(--text-muted);
}

.prev-next a:hover {
  color: var(--accent-light);
}

/* ============================================================
   无数据 / 空状态
   ============================================================ */
.no-data {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* ============================================================
   分页
   ============================================================ */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.pagination a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 6px;
  font-size: 0.85rem;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast);
}

.pagination a:hover {
  border-color: var(--accent);
  color: var(--accent-light);
}

.pagination a.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #FFF;
}

.pagination .disabled {
  opacity: 0.4;
  pointer-events: none;
}

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

.search-form input {
  flex: 1;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  color: var(--text-primary);
  transition: border-color var(--duration-fast);
}

.search-form input:focus {
  border-color: var(--accent);
}

.search-form input::placeholder {
  color: var(--text-dark);
}

.search-result-count {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.search-highlight {
  color: var(--accent-light);
  font-weight: 500;
}

/* ============================================================
   留言 / 询价表单
   ============================================================ */
.inquiry-form {
  max-width: 700px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-group .required {
  color: #EF4444;
  margin-left: 2px;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  color: var(--text-primary);
  transition: border-color var(--duration-fast);
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--accent);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ============================================================
   联系信息卡片
   ============================================================ */
.contact-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--duration-normal);
}

.contact-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.contact-card__icon {
  font-size: 1.8rem;
  color: var(--accent);
  margin-bottom: 16px;
}

.contact-card__title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.contact-card__text {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ============================================================
   地图容器
   ============================================================ */
.map-container {
  width: 100%;
  height: 380px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: 40px;
}

/* ============================================================
   生产车间 — 工序展示
   ============================================================ */
.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.process-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--duration-normal);
}

.process-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-card);
}

.process-card__image {
  height: 220px;
  overflow: hidden;
  background: var(--bg-dark);
}

.process-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow);
}

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

.process-card__body {
  padding: 24px;
}

.process-card__step {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent-light);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.process-card__title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.process-card__desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ============================================================
   背景交替区块
   ============================================================ */
.bg-dark-alt { background: var(--bg-dark); }
.bg-deep { background: var(--bg-deep); }
.bg-section { background: var(--bg-section); }

/* ============================================================
   科技蓝分隔线
   ============================================================ */
.tech-divider {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.5;
  margin: 0;
}

/* ============================================================
   在线客服按钮
   ============================================================ */
.online-service {
  position: fixed;
  right: 20px;
  bottom: 120px;
  z-index: 90;
  width: 50px;
  height: 50px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFF;
  font-size: 1.3rem;
  box-shadow: 0 4px 16px rgba(26, 107, 176, 0.4);
  cursor: pointer;
  transition: all var(--duration-fast);
}

.online-service:hover {
  background: var(--accent-light);
  transform: scale(1.08);
  box-shadow: 0 6px 24px rgba(26, 107, 176, 0.5);
}

/* ============================================================
   返回顶部
   ============================================================ */
.back-top {
  position: fixed;
  right: 20px;
  bottom: 180px;
  z-index: 90;
  width: 50px;
  height: 50px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--duration-normal);
}

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

.back-top:hover {
  border-color: var(--accent);
  color: var(--accent-light);
}

/* ============================================================
   AOS 动画微调
   ============================================================ */
[data-aos] {
  transition-timing-function: var(--ease-out);
}

/* ============================================================
   图片懒加载占位
   ============================================================ */
img[data-src] {
  background: var(--bg-card);
  min-height: 40px;
}

img[data-src].loaded {
  background: transparent;
}

/* ============================================================
   @media 响应式 (768px 断点)
   ============================================================ */
@media (max-width: 1024px) {
  .list-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .features { grid-template-columns: repeat(2, 1fr); }
  .perf-grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .product-detail { grid-template-columns: 1fr; gap: 32px; }
  .contact-cards { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item__number { font-size: 2.4rem; }
  .hero__title { font-size: 2.2rem; }
  .page-layout { grid-template-columns: 220px 1fr; gap: 24px; }
}

@media (max-width: 768px) {
  :root {
    --section-py: 56px;
    --section-py-sm: 40px;
  }

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

  .hero {
    height: 80vh;
    min-height: 480px;
    max-height: 600px;
  }

  .hero__title { font-size: 1.8rem; }
  .hero__subtitle { font-size: 0.9rem; }
  .hero__actions .btn { padding: 12px 24px; font-size: 0.88rem; }
  .hero__content { bottom: 15%; }

  .section__title { font-size: 1.6rem; }

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

  .stats { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .stat-item__number { font-size: 2rem; }

  .features { grid-template-columns: 1fr; }
  .perf-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-cards { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }

  .page-layout { grid-template-columns: 1fr; }
  .sidebar { display: none; }

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

  .card--news {
    flex-direction: column;
  }

  .card--news .card__image {
    width: 100%;
    min-height: 180px;
  }

  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .footer__bottom-inner { flex-direction: column; text-align: center; }

  .inner-banner { height: 240px; }
  .inner-banner__title { font-size: 1.6rem; }

  .detail-header h1 { font-size: 1.4rem; }
  .detail-tabs { flex-wrap: wrap; }
  .detail-tab { padding: 12px 18px; font-size: 0.85rem; }

  .form-row { grid-template-columns: 1fr; }
  .prev-next { flex-direction: column; }

  .hero__scroll { display: none; }
}

@media (max-width: 480px) {
  .hero__title { font-size: 1.4rem; }
  .stats { grid-template-columns: 1fr 1fr; }
  .perf-grid { grid-template-columns: 1fr; }
  .cta-section__title { font-size: 1.4rem; }
  .product-detail__meta { gap: 6px; }
  .product-detail__meta-item { padding: 6px 12px; font-size: 0.78rem; }
}

/* ============================================================
   辅助工具类
   ============================================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-primary { color: var(--text-primary); }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent-light); }
.text-silver { color: var(--silver); }
.font-mono { font-family: var(--font-mono); }
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mt-5 { margin-top: 48px; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.mb-5 { margin-bottom: 48px; }
.d-flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }
.flex-wrap { flex-wrap: wrap; }
.w-full { width: 100%; }
.hidden { display: none !important; }
.show-mobile { display: none; }
.hide-mobile { display: block; }

@media (max-width: 768px) {
  .show-mobile { display: block; }
  .hide-mobile { display: none; }
}

/* ============================================================
   打印样式
   ============================================================ */
@media print {
  .header, .footer, .back-top, .online-service, .hamburger, .mobile-nav { display: none; }
  body { background: #FFF; color: #000; }
}

/* 7-8 mobile: retain architectural palette and all content. */
@media (max-width:1023px){
 :root{--header-h:70px;--section-py:36px;--section-py-sm:30px}
 .container,.header__inner{padding-left:20px;padding-right:20px}
 .header__nav,.header__actions{display:none}.hamburger{display:flex;flex-shrink:0}
 .header__logo,.header__logo-text{min-width:0}.header__logo-sub{font-size:9px;letter-spacing:1px;overflow-wrap:anywhere}.header__logo-name{font-size:16px}.header__logo-icon{flex-shrink:0}
 .mobile-nav{visibility:hidden;height:100dvh}.mobile-nav.active{visibility:visible}.mobile-nav__inner{padding:64px 20px 28px}.mobile-nav__close{position:absolute;right:16px;top:14px;width:40px;height:40px;border:1px solid var(--border-subtle);background:var(--bg-card);color:white;font-size:24px;cursor:pointer}.mobile-nav__link,.mobile-nav__item{padding:11px 0;font-size:15px}
 .inner-banner{margin-top:calc(var(--header-h) + 16px);height:auto;min-height:170px;overflow:visible}.inner-banner__content{position:relative;inset:auto;min-height:170px;padding:26px 20px}.inner-banner__title{font-size:26px;line-height:1.4;overflow-wrap:anywhere}.inner-banner__subtitle{font-size:14px;overflow-wrap:anywhere}.breadcrumb{padding:0 20px;line-height:1.9;overflow-wrap:anywhere}.breadcrumb-bar{padding:12px 0}
 .hero{height:470px;min-height:0;max-height:none}.hero__content{bottom:65px}.hero__title{font-size:30px;line-height:1.35}.hero__subtitle{font-size:14px;margin-bottom:22px}.hero__scroll{display:none}.hero__actions{gap:10px}.hero__actions .btn{padding:12px 18px}
 .section__header{margin-bottom:24px}.section__title{font-size:25px;line-height:1.4}.section__subtitle{font-size:14px}.section__tag{font-size:11px;margin-bottom:10px}
 .home-page .section>.container>div[style*="margin-bottom:48px"]{margin-bottom:24px!important}.home-page .show-mobile{display:none}
 .list-grid{gap:16px}.list-grid--3,.list-grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}.list-grid>*,.page-content,.product-detail>*,.form-row>*,.footer__grid>*{min-width:0}
 .card__body{padding:16px}.card__title{font-size:17px;line-height:1.5}.card__desc{font-size:13px}.card__specs{gap:6px;flex-wrap:wrap}.card__spec{overflow-wrap:anywhere}
 .stats{gap:20px;grid-template-columns:repeat(4,minmax(0,1fr))}.stat-item__number{font-size:29px}.stat-item__suffix{font-size:15px}.stat-item__label{font-size:12px}
 .process-grid{gap:16px;grid-template-columns:repeat(2,minmax(0,1fr))}.process-card__body{padding:16px}.process-card__image{height:180px}.process-card__title{font-size:19px}.process-card__desc{font-size:13px;line-height:1.7}
 .perf-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.perf-card{padding:20px 12px}.perf-card__icon{font-size:25px;margin-bottom:10px}.perf-card__value{font-size:32px}.perf-card__desc{font-size:12px}.perf-card__name{font-size:15px}
 .features{grid-template-columns:1fr;gap:14px}.feature-card{padding:20px;text-align:left}.feature-card__icon{width:42px;height:42px;font-size:20px;margin:0 0 12px}.feature-card__title{font-size:18px}
 .page-layout{grid-template-columns:minmax(0,1fr);gap:24px}.sidebar{display:none}.filter-bar{flex-wrap:wrap;gap:12px;padding:16px}.filter-bar select{max-width:100%}
 .product-detail{grid-template-columns:minmax(0,1fr);gap:24px}.product-detail__gallery{min-width:0}.product-detail__gallery img{max-height:400px;object-fit:contain}.product-detail__info h1,.detail-header h1{font-size:24px;line-height:1.5;overflow-wrap:anywhere}.product-detail__info>div[style*="display:flex"]{flex-wrap:wrap}.product-detail__meta{gap:8px}.detail-tabs{flex-wrap:wrap;margin-top:30px!important}.detail-tab{padding:12px 14px;font-size:14px}.detail-tab-panel{padding:20px 0}.detail__body{font-size:15px;overflow-wrap:anywhere}.detail__body table,.specs-table{table-layout:fixed;width:100%;overflow-wrap:anywhere}.detail__body table td,.detail__body table th,.specs-table td{padding:9px 7px;font-size:12px}.detail__body img{height:auto;max-width:100%}.prev-next{flex-direction:column;overflow-wrap:anywhere;gap:12px}
 .container>div[style*="grid-template-columns:1fr 1fr"]{grid-template-columns:minmax(0,1fr)!important;gap:24px!important;margin-bottom:30px!important}.container>div[style*="padding:40px"]{padding:24px!important}.container>div[style*="margin-bottom:60px"]{margin-bottom:30px!important}
 .contact-cards{grid-template-columns:1fr;gap:14px;margin-bottom:30px}.contact-card{padding:22px;text-align:left}.contact-card__icon{font-size:24px;margin-bottom:10px}.contact-card__text{overflow-wrap:anywhere}.cta-box{padding:24px;margin-bottom:28px!important}.form-row{grid-template-columns:minmax(0,1fr);gap:0}.form-input,.form-textarea,.search-form input{min-width:0;max-width:100%;font-size:16px}.form-group img{flex-shrink:0}.inquiry-form{min-width:0}.search-form{gap:8px}.search-form .btn{padding:12px 16px}.search-result{gap:12px!important;padding:14px!important}.search-result>div:first-child{width:95px!important;height:85px!important}.search-result h3{overflow-wrap:anywhere;font-size:16px!important}
 .cta-section{padding:38px 20px}.cta-section .container{padding:0}.cta-section__title{font-size:24px;line-height:1.5}.cta-section__subtitle{font-size:14px}.footer{padding-top:36px}.footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 18px}.footer__grid>div:first-child{grid-column:1/-1}.footer__brand-desc{margin-bottom:16px}.footer__col-title{margin-bottom:14px}.footer__links a{padding:5px 0}.footer__contact-item{overflow-wrap:anywhere;font-size:13px}.footer__bottom-inner{flex-direction:column;gap:10px;text-align:center}.online-service,.back-top{width:42px;height:42px;right:12px}.online-service{bottom:24px}.back-top{bottom:76px}
}
@media(max-width:600px){
 .hero{height:420px}.hero__title{font-size:27px}.stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.home-page .section.bg-dark-alt{padding:26px 0}.list-grid--2,.list-grid--3{grid-template-columns:minmax(0,1fr)}.list-grid--4{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.list-grid--4 .card__body{padding:12px}.list-grid--4 .card__title{font-size:15px}.list-grid--4 .card__desc{font-size:12px}
 .home-page .list-grid--3 .card--product{display:grid;grid-template-columns:105px minmax(0,1fr)}.home-page .list-grid--3 .card--product .card__image{height:100%;padding:0}.home-page .list-grid--3 .card--product .card__image img{height:100%;object-fit:cover}.home-page .list-grid--3 .card--product .card__body{padding:14px}.home-page .card__specs{margin-top:10px}
 .process-grid{grid-template-columns:minmax(0,1fr)}.home-page .process-card{display:grid;grid-template-columns:90px minmax(0,1fr)}.home-page .process-card__image{height:100%}.home-page .process-card__body{padding:14px}.process-card__title{margin-bottom:8px}.card--news{flex-direction:row;align-items:stretch}.card--news .card__image{width:90px;min-height:120px;flex-shrink:0}.card--news .card__body{padding:14px;min-width:0}.card--news .card__title{font-size:16px}.card--news .card__desc{font-size:12px}.card--case .card__overlay{padding:14px 10px}.card--case .card__overlay-title{font-size:14px}.card--case .card__overlay-sub{font-size:11px}
 .card--case .card__overlay{position:static;background:var(--bg-card);padding:12px;transform:none}.card--case .card__overlay-title{line-height:1.6}.card--case .card__overlay-sub{line-height:1.7}.footer__grid>div:last-child{grid-column:1/-1}.btn{white-space:normal}.pagination{flex-wrap:wrap}.search-result>div:first-child{width:76px!important}.header__logo-sub{font-size:8px;letter-spacing:.4px}.header__logo-icon{width:34px;height:34px}.header__logo{gap:9px}
}

/* zzm-reviewed-demo-layout-146; 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; }
}