/**
 * ============================================================
 * LangYun Engineering Logistics — 琅雲工程物流
 * 深灰硬朗工业风 + 钢蓝 + 安全橙
 * 专为工程项目物流/大件运输/特种运输企业设计
 * 无框架依赖，纯原生 CSS
 * ============================================================
 */

/* Google Fonts — 工业风字体 */


/* ============================================================
   CSS 变量体系
   ============================================================ */
:root {
  /* 基底色 — 工业深灰 */
  --bg-deep: #0D0D0D;
  --bg-primary: #1A1A1A;
  --bg-secondary: #222222;
  --bg-card: #252525;
  --bg-card-hover: #2A2A2A;
  --bg-input: #1E1E1E;
  --bg-overlay: rgba(0, 0, 0, 0.75);

  /* 钢蓝色系 */
  --steel-blue: #2C3E50;
  --steel-blue-light: #3D5060;
  --steel-blue-dark: #1F2D3D;
  --steel-blue-dim: rgba(44, 62, 80, 0.25);

  /* 安全橙色系 */
  --orange: #F97316;
  --orange-light: #FB923C;
  --orange-dark: #EA580C;
  --orange-dim: rgba(249, 115, 22, 0.15);
  --orange-glow: rgba(249, 115, 22, 0.3);

  /* 文字色阶 */
  --text-primary: #E8E8E8;
  --text-secondary: #B0B0B0;
  --text-muted: #787878;
  --text-title: #FFFFFF;
  --text-link: #FB923C;

  /* 边框 */
  --border-default: #333333;
  --border-subtle: #2A2A2A;
  --border-orange: rgba(249, 115, 22, 0.4);
  --border-steel: rgba(44, 62, 80, 0.5);

  /* 字体系统 — 工业硬朗风格 */
  --font-heading: 'Oswald', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Arial', sans-serif;
  --font-mono: 'Chakra Petch', 'SF Mono', 'Consolas', 'Monaco', monospace;
  --font-data: 'Chakra Petch', 'Oswald', 'DIN', 'Arial Narrow', 'Helvetica Neue', sans-serif;

  /* 间距与尺寸 */
  --max-width: 1200px;
  --header-height: 72px;
  --radius-sm: 2px;
  --radius-md: 4px;

  /* 阴影 */
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.4);
  --shadow-card-hover: 0 4px 24px rgba(249, 115, 22, 0.12);
  --shadow-orange: 0 0 20px rgba(249, 115, 22, 0.15);

  /* 过渡 */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

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

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-deep);
  overflow-x: hidden;
  min-height: 100vh;
}

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

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

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

ul, ol {
  list-style: none;
}

input, textarea, select, button {
  font-family: inherit;
  font-size: inherit;
  outline: none;
}

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

.section {
  padding: 80px 0;
  position: relative;
}

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

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

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

/* 区块分割线 — 工业风细线 */
.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-steel), transparent);
  margin: 0;
}

/* ============================================================
   Header / 导航栏
   ============================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(26, 26, 26, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.header.scrolled {
  background: rgba(26, 26, 26, 0.98);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
  border-bottom: 1px solid var(--border-steel);
}

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

/* Logo */
.header__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  text-decoration: none;
}

.header__logo-icon {
  width: 44px;
  height: 44px;
  background: var(--steel-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  position: relative;
}

.header__logo-icon::after {
  content: '';
  position: absolute;
  inset: -2px;
  border: 1px solid var(--border-orange);
  border-radius: var(--radius-sm);
  opacity: 0.5;
}

.header__logo-icon i {
  color: #FFFFFF;
  font-size: 1.3rem;
}

.header__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.header__logo-name {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-title);
  letter-spacing: 0.02em;
}

.header__logo-sub {
  font-size: 0.65rem;
  color: var(--orange);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* 导航列表 */
.header__nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}

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

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

.header__nav-link.active {
  color: var(--orange);
}

/* 下拉菜单项 */
.header__nav-item {
  position: relative;
}

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

/* 下拉面板 */
.header__dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 200px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-top: 2px solid var(--orange);
  border-radius: var(--radius-sm);
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast);
  z-index: 60;
  box-shadow: var(--shadow-card);
}

.header__nav-item:hover .header__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.header__dropdown a {
  display: block;
  padding: 10px 20px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast), background var(--transition-fast), padding-left var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
}

.header__dropdown a:hover {
  color: var(--orange);
  background: rgba(249, 115, 22, 0.08);
  padding-left: 24px;
}

/* 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: 10px 22px;
  font-size: 0.88rem;
  font-weight: 600;
  color: #FFFFFF;
  background: var(--orange);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
}

.header__cta:hover {
  background: var(--orange-dark);
  box-shadow: var(--shadow-orange);
  color: #FFFFFF;
}

/* 汉堡菜单 — 独立于 header__actions (避坑13.4) */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 10px;
  z-index: 110;
  flex-shrink: 0;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
  transform-origin: center;
}

.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;
  bottom: 0;
  width: 300px;
  max-width: 80vw;
  background: var(--bg-primary);
  border-left: 1px solid var(--border-subtle);
  z-index: 105;
  transform: translateX(100%);
  transition: transform var(--transition-base);
  overflow-y: auto;
}

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

.mobile-nav__inner {
  padding: 24px 20px;
}

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

.mobile-nav__link:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-title);
}

.mobile-nav__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  font-size: 1rem;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius-sm);
}

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

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

.mobile-nav__sub a {
  display: block;
  padding: 10px 20px;
  font-size: 0.9rem;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
  cursor: pointer;
}

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

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

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

/* 页面主体偏移（给固定header让位） */
.page-content {
  padding-top: var(--header-height);
}

/* ============================================================
   Banner / Hero Swiper
   ============================================================ */
.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(13, 13, 13, 0.3) 0%,
    rgba(13, 13, 13, 0.15) 40%,
    rgba(13, 13, 13, 0.65) 75%,
    rgba(13, 13, 13, 0.95) 100%
  );
  z-index: 2;
}

/* 左侧橙色工业线条装饰 */
.hero__accent-line {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 120px;
  background: var(--orange);
  z-index: 3;
  opacity: 0.8;
}

/* 文字内容区 */
.hero__content {
  position: absolute;
  left: 8%;
  bottom: 20%;
  z-index: 3;
  max-width: 600px;
}

.hero__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--orange);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 6px 14px;
  border: 1px solid var(--border-orange);
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  background: rgba(249, 115, 22, 0.08);
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  color: #FFFFFF;
  line-height: 1.15;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.6);
}

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

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 32px;
  max-width: 480px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Swiper 分页 */
.hero-pagination {
  position: absolute;
  bottom: 40px;
  right: 8%;
  z-index: 3;
  display: flex;
  gap: 8px;
}

.hero-pagination .swiper-pagination-bullet {
  width: 40px;
  height: 3px;
  border-radius: 0;
  background: rgba(255, 255, 255, 0.3);
  opacity: 1;
  transition: background var(--transition-fast), width var(--transition-fast);
}

.hero-pagination .swiper-pagination-bullet-active {
  background: var(--orange);
  width: 60px;
}

/* 滚动指示器 */
.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 8%;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: var(--orange);
  position: relative;
  overflow: hidden;
}

.hero__scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: #FFFFFF;
  animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
  0% { top: -100%; }
  50% { top: 100%; }
  100% { top: 100%; }
}

/* ============================================================
   Section 通用样式
   ============================================================ */
.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--orange);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 12px;
  padding: 4px 12px;
  border: 1px solid var(--border-orange);
  border-radius: var(--radius-sm);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--text-title);
  line-height: 1.25;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 560px;
}

/* ============================================================
   按钮系统
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  line-height: 1.4;
  white-space: nowrap;
}

.btn--primary {
  background: var(--orange);
  color: #FFFFFF;
}

.btn--primary:hover {
  background: var(--orange-dark);
  box-shadow: var(--shadow-orange);
  color: #FFFFFF;
}

.btn--outline {
  background: transparent;
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn--outline:hover {
  border-color: var(--orange);
  color: var(--orange);
}

.btn--steel {
  background: var(--steel-blue);
  color: #FFFFFF;
  border: 1px solid var(--steel-blue-light);
}

.btn--steel:hover {
  background: var(--steel-blue-light);
  color: #FFFFFF;
}

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

.btn--ghost:hover {
  border-color: var(--orange);
  color: var(--orange);
}

.btn--lg {
  padding: 16px 36px;
  font-size: 1rem;
}

.btn--sm {
  padding: 8px 18px;
  font-size: 0.8rem;
}

/* ============================================================
   卡片系统 — 工业风深色卡片 + 橙色细边框
   ============================================================ */
.card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  cursor: pointer;
  height: 100%;
}

.card:hover {
  border-color: var(--border-orange);
  box-shadow: var(--shadow-card-hover);
  background: var(--bg-card-hover);
}

.card__image {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg-secondary);
}

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

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

/* 卡片图片上的覆盖标签 */
.card__image .card__tag-overlay {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: #FFFFFF;
  background: var(--orange);
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
}

.card__body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 8px;
}

.card__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--orange);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.card__title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-title);
  line-height: 1.3;
}

.card__desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.card__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
  padding-top: 8px;
  border-top: 1px solid var(--border-subtle);
}

.card__meta i {
  color: var(--orange);
  font-size: 0.7rem;
  margin-right: 4px;
}

.card__price {
  font-family: var(--font-data);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--orange);
}

/* 数据卡片（无图片） */
.card--data {
  padding: 32px 24px;
  text-align: center;
  align-items: center;
  border: 1px solid var(--border-steel);
  background: var(--bg-secondary);
}

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

.card--data .card__icon {
  font-size: 2rem;
  color: var(--orange);
  margin-bottom: 16px;
}

.card--data .card__number {
  font-family: var(--font-data);
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--text-title);
  line-height: 1;
  margin-bottom: 4px;
}

.card--data .card__unit {
  font-size: 1rem;
  color: var(--orange);
  font-weight: 600;
}

.card--data .card__label {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 8px;
}

/* 服务卡片（图标+文字） */
.card--service {
  padding: 36px 28px;
  text-align: left;
  align-items: flex-start;
  border-left: 2px solid transparent;
  transition: border-left-color var(--transition-fast), background var(--transition-fast);
}

.card--service:hover {
  border-left-color: var(--orange);
  background: var(--bg-card-hover);
}

.card--service .card__icon {
  font-size: 2.2rem;
  color: var(--steel-blue-light);
  margin-bottom: 20px;
  transition: color var(--transition-fast);
}

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

/* ============================================================
   网格布局
   ============================================================ */
.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;
}

/* ============================================================
   数据统计区
   ============================================================ */
.stats-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-steel);
  border-bottom: 1px solid var(--border-steel);
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-item {
  padding: 24px;
}

.stat-item__number {
  font-family: var(--font-data);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  color: var(--text-title);
  line-height: 1;
  margin-bottom: 8px;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
}

.stat-item__number .unit {
  font-size: 1.2rem;
  color: var(--orange);
  font-weight: 700;
}

.stat-item__label {
  font-size: 0.9rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.stat-item__divider {
  width: 40px;
  height: 2px;
  background: var(--orange);
  margin: 12px auto 0;
}

/* ============================================================
   CTA 区
   ============================================================ */
.cta-section {
  padding: 80px 0;
  text-align: center;
  background: var(--bg-primary);
  border-top: 2px solid var(--border-steel);
  border-bottom: 2px solid var(--border-steel);
}

.cta-section__content {
  max-width: 650px;
  margin: 0 auto;
  padding: 48px 32px;
  border: 1px solid var(--border-orange);
  background: rgba(249, 115, 22, 0.03);
  border-radius: var(--radius-sm);
}

.cta-section__title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 800;
  color: var(--text-title);
  margin-bottom: 12px;
}

.cta-section__desc {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 28px;
  line-height: 1.6;
}

.cta-section__tags {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.cta-section__tag {
  padding: 6px 16px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
}

/* ============================================================
   列表页通用
   ============================================================ */
/* 页面Banner */
.page-banner {
  position: relative;
  height: 320px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: flex-end;
}

.page-banner__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(13, 13, 13, 0.2) 0%, rgba(13, 13, 13, 0.85) 100%);
}

.page-banner__content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px 48px;
}

.page-banner__title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 2.5vw, 2.2rem);
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 8px;
}

.page-banner__subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
}

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

.breadcrumb__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

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

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

.breadcrumb__inner .separator {
  margin: 0 8px;
  color: var(--border-default);
}

/* 列表内容区 */
.list-content {
  padding: 48px 0 80px;
  background: var(--bg-deep);
}

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

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  font-size: 0.88rem;
  font-weight: 500;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  cursor: pointer;
}

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

.pagination .current {
  background: var(--orange);
  border-color: var(--orange);
  color: #FFFFFF;
  font-weight: 700;
}

.pagination .disabled {
  color: var(--text-muted);
  pointer-events: none;
  opacity: 0.5;
}

/* 空数据 */
.no-data {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 1rem;
}

/* ============================================================
   详情页
   ============================================================ */
.detail {
  padding: 48px 0 80px;
  background: var(--bg-deep);
}

.detail__header {
  margin-bottom: 32px;
}

.detail__title {
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 2.5vw, 1.8rem);
  font-weight: 800;
  color: var(--text-title);
  margin-bottom: 12px;
  line-height: 1.3;
}

.detail__meta {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
  flex-wrap: wrap;
}

.detail__meta i {
  color: var(--orange);
  margin-right: 4px;
  font-size: 0.7rem;
}

.detail__body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.detail__image {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-card);
}

.detail__image img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.detail__info {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.detail__info-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-title);
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border-orange);
  display: inline-block;
}

.detail__param {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 8px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.detail__param-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.detail__param-value {
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 500;
}

.detail__content {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

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

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

/* 上一篇/下一篇 */
.detail__nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 32px;
  border-top: 1px solid var(--border-subtle);
  margin-top: 32px;
  flex-wrap: wrap;
}

.detail__nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  cursor: pointer;
}

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

/* ============================================================
   Tab 切换 (服务详情/方案详情)
   ============================================================ */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border-steel);
  margin-bottom: 32px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tab-btn {
  padding: 14px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--transition-fast), border-color var(--transition-fast);
  font-family: inherit;
}

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

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

.tab-panel {
  display: none;
}

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

/* ============================================================
   表单系统
   ============================================================ */
.form {
  max-width: 700px;
}

.form__group {
  margin-bottom: 20px;
}

.form__label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  letter-spacing: 0.03em;
}

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

.form__input,
.form__textarea,
.form__select {
  width: 100%;
  padding: 12px 16px;
  font-size: 0.95rem;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast);
  font-family: inherit;
}

.form__input:focus,
.form__textarea:focus,
.form__select:focus {
  border-color: var(--orange);
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: var(--text-muted);
}

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

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form__checkcode {
  display: flex;
  align-items: center;
  gap: 12px;
}

.form__checkcode .form__input {
  flex: 1;
}

.form__checkcode img {
  height: 42px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid var(--border-default);
}

.form__submit {
  margin-top: 8px;
}

/* ============================================================
   页脚 Footer
   ============================================================ */
.footer {
  background: var(--bg-primary);
  border-top: 2px solid var(--border-steel);
}

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

.footer__brand-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 12px 0 16px;
}

.footer__col-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border-steel);
  letter-spacing: 0.04em;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__links a {
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: color var(--transition-fast), padding-left var(--transition-fast);
  cursor: pointer;
}

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

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  line-height: 1.5;
}

.footer__contact-item i {
  color: var(--orange);
  font-size: 0.85rem;
  margin-top: 3px;
  width: 16px;
  text-align: center;
  flex-shrink: 0;
}

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

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

.friend-links__label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

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

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

/* 底部版权 */
.footer__bottom {
  background: var(--bg-deep);
  border-top: 1px solid var(--border-subtle);
}

.footer__bottom-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

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

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

/* ============================================================
   返回顶部 + 在线客服
   ============================================================ */
.back-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-fast);
  z-index: 90;
}

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

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

/* 在线客服按钮 */
.kefu-btn {
  position: fixed;
  bottom: 88px;
  right: 32px;
  width: 52px;
  height: 52px;
  background: var(--orange);
  border: none;
  border-radius: 50%;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 90;
  box-shadow: 0 4px 20px rgba(249, 115, 22, 0.35);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  font-size: 1.3rem;
}

.kefu-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 28px rgba(249, 115, 22, 0.5);
}

/* ============================================================
   关于我们页
   ============================================================ */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.about-intro__image {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
}

.about-intro__image::after {
  content: '';
  position: absolute;
  left: 12px;
  top: 12px;
  right: -12px;
  bottom: -12px;
  border: 1px solid var(--border-orange);
  border-radius: var(--radius-sm);
  z-index: -1;
  opacity: 0.3;
}

.about-intro__image img {
  width: 100%;
  height: auto;
}

.about-intro__text h2 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-title);
  margin-bottom: 20px;
}

.about-intro__text p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

/* ============================================================
   联系页面
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}

.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  transition: border-color var(--transition-fast);
}

.contact-info__item:hover {
  border-color: var(--border-steel);
}

.contact-info__icon {
  width: 44px;
  height: 44px;
  background: var(--steel-blue-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.contact-info__icon i {
  color: var(--orange);
  font-size: 1.1rem;
}

.contact-info__label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.contact-info__value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* ============================================================
   搜索页
   ============================================================ */
.search-form {
  display: flex;
  gap: 0;
  max-width: 600px;
  margin-bottom: 32px;
}

.search-form .form__input {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  height: 48px;
}

.search-form .btn {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  height: 48px;
  padding: 0 28px;
}

/* ============================================================
   客户/Logo网格
   ============================================================ */
.client-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.client-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast);
  cursor: pointer;
  min-height: 120px;
}

.client-item:hover {
  border-color: var(--border-steel);
}

.client-item__logo {
  max-width: 140px;
  max-height: 60px;
  filter: grayscale(1) brightness(0.7);
  transition: filter var(--transition-fast);
  object-fit: contain;
}

.client-item:hover .client-item__logo {
  filter: grayscale(0) brightness(1);
}

/* ============================================================
   解决方案/能力卡片
   ============================================================ */
.capability-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 40px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
  cursor: pointer;
}

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

.capability-card__number {
  font-family: var(--font-data);
  font-size: 3rem;
  font-weight: 900;
  color: var(--steel-blue-light);
  line-height: 1;
  margin-bottom: 8px;
  opacity: 0.3;
}

.capability-card__icon {
  font-size: 2.5rem;
  color: var(--orange);
  margin-bottom: 16px;
}

.capability-card__title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 8px;
}

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

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: repeat(2, 1fr); }
  .detail__body { grid-template-columns: 1fr; }
  .about-intro { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .client-grid { grid-template-columns: repeat(2, 1fr); }
}

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

  .header__nav {
    display: none;
  }

  .header__actions {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .header__inner {
    gap: 12px;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

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

  .hero__content {
    left: 5%;
    bottom: 15%;
    right: 5%;
  }

  .hero__tag {
    font-size: 0.65rem;
  }

  .hero__title {
    font-size: 1.6rem;
  }

  .hero__subtitle {
    font-size: 0.9rem;
  }

  .hero__actions {
    flex-direction: column;
    gap: 12px;
  }

  .hero__scroll {
    display: none;
  }

  .section {
    padding: 48px 0;
  }

  .cta-section {
    padding: 48px 0;
  }

  .cta-section__content {
    padding: 32px 20px;
  }

  .detail__param {
    grid-template-columns: 90px 1fr;
  }

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

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

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

  .back-top,
  .kefu-btn {
    right: 16px;
  }
}

@media (max-width: 480px) {
  .hero {
    min-height: 480px;
    max-height: 600px;
  }

  .hero__title {
    font-size: 1.3rem;
  }

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

  .pagination a,
  .pagination span {
    min-width: 34px;
    height: 34px;
    font-size: 0.8rem;
    padding: 0 8px;
  }

  .tabs {
    gap: 0;
  }

  .tab-btn {
    padding: 10px 14px;
    font-size: 0.82rem;
  }
}

/* ============================================================
   动画辅助
   ============================================================ */
[data-aos] {
  transition-timing-function: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* 橙色脉冲 */
@keyframes pulse-orange {
  0%, 100% { box-shadow: 0 0 0 0 rgba(249, 115, 22, 0.3); }
  50% { box-shadow: 0 0 0 12px rgba(249, 115, 22, 0); }
}

.pulse {
  animation: pulse-orange 2.5s ease-in-out infinite;
}

/* 微妙的边框发光 (hover) */
@keyframes border-glow {
  0% { border-color: var(--border-orange); }
  50% { border-color: rgba(249, 115, 22, 0.6); }
  100% { border-color: var(--border-orange); }
}

/* 数字跳动（配合JS计数器） */
.count-up {
  display: inline-block;
  transition: none;
}

/* 预加载/懒加载图片过渡 */
img[data-src] {
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

/* 骨架屏（可选） */
.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* 辅助工具类 */
.text-center { text-align: center; }
.text-orange { color: var(--orange); }
.text-steel { color: var(--steel-blue-light); }
.text-muted { color: var(--text-muted); }
.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; }

/* 7-10/004: mobile industrial layout; desktop styling remains unchanged. */
@media (max-width:1023px) {
  html, body { overflow-x:visible; }
  .header__nav, .header__actions { display:none; }
  .hamburger { display:flex; flex-shrink:0; }
  .container, .header__inner { padding-left:20px; padding-right:20px; }
  .grid-2, .grid-3, .grid-4, .stats, .card, .card__body, .detail__body, .detail__info,
  .about-intro, .contact-grid, .form__row, .form__group, .footer__grid > div { min-width:0; }
  .page-banner { margin-top:calc(var(--header-height) + 16px); height:auto; min-height:180px; }
  .page-banner__content { padding:28px 20px; }
  .page-banner__title { line-height:1.5; overflow-wrap:anywhere; }
  .search-breadcrumb { margin-top:calc(var(--header-height) + 16px); }
  .breadcrumb__inner { padding:0 20px; line-height:1.9; overflow-wrap:anywhere; }
  .mobile-nav { visibility:hidden; }
  .mobile-nav.active { visibility:visible; }
  .mobile-nav__inner { padding-top:66px; }
  .mobile-nav__close { display:flex !important; position:absolute; top:12px; right:12px; width:40px; height:40px; align-items:center; justify-content:center; background:var(--bg-card); color:var(--text-title); border:1px solid var(--border-default); font-size:26px; }
  .mobile-nav__sub:not(.active) { display:none; }
  .mobile-nav__link, .mobile-nav__sub a { min-height:44px; }
  .detail__content, .detail__param-value, .about-intro__text { overflow-wrap:anywhere; }
  .detail__param { grid-template-columns:100px minmax(0,1fr); }
  .tabs { max-width:100%; }
  .card__meta { flex-wrap:wrap; }
  [data-aos="fade-left"], [data-aos="fade-right"] { transform:translateY(20px); }
  [data-aos="fade-left"].aos-animate, [data-aos="fade-right"].aos-animate { transform:none; }
}
@media (max-width:768px) {
  .header__inner { gap:10px; }
  .header__logo { min-width:0; gap:9px; }
  .header__logo-icon { width:38px; height:38px; flex-shrink:0; }
  .header__logo-name { font-size:1rem; }
  .header__logo-sub { font-size:.55rem; letter-spacing:.08em; }
  .hero { height:410px; min-height:410px; max-height:none; }
  .hero__content { left:20px; right:20px; bottom:70px; }
  .hero__tag { font-size:.57rem; letter-spacing:.15em; padding:6px 10px; margin-bottom:16px; }
  .hero__title { font-size:clamp(1.45rem,6vw,1.85rem); line-height:1.4; margin-bottom:14px; }
  .hero__subtitle { font-size:.83rem; margin-bottom:20px; }
  .hero__actions { flex-direction:row; gap:10px; }
  .hero__actions .btn { flex:1; padding:12px 10px; }
  .hero__accent-line { height:86px; }
  .hero-pagination { bottom:25px !important; }
  .section, .list-content, .detail { padding:32px 0; }
  .section-title { font-size:1.45rem; margin-bottom:10px; line-height:1.5; }
  .section-tag { font-size:.65rem; margin-bottom:10px; }
  .section-subtitle { font-size:.85rem; }
  .container > div[style*="margin-bottom:48px"] { margin-bottom:24px !important; }
  .container > div[style*="margin-top:40px"], .container > div[style*="margin-top:48px"], .container > div[style*="margin-top:60px"] { margin-top:26px !important; }
  .btn { min-height:44px; padding:11px 17px; font-size:.82rem; }
  .btn--lg { padding:13px 20px; font-size:.86rem; }
  .grid-3, .grid-4 { grid-template-columns:repeat(2,minmax(0,1fr)); gap:12px; }
  .grid-2 { grid-template-columns:minmax(0,1fr); gap:20px; }
  .stats { grid-template-columns:repeat(2,minmax(0,1fr)); gap:12px; }
  .stats-section { padding:20px 0; }
  .stat-item { padding:14px 8px; }
  .stat-item__number { font-size:2rem; }
  .stat-item__number .unit { font-size:.9rem; }
  .stat-item__divider { margin:10px auto; }
  .stat-item__label { font-size:.76rem; }
  .card--service { padding:22px 14px; }
  .card--service .card__icon { font-size:1.7rem; margin-bottom:14px; }
  .card__body { padding:15px 12px; gap:8px; }
  .card__title { font-size:.98rem; line-height:1.55; }
  .card__tag { font-size:.68rem; }
  .card__desc { font-size:.77rem; line-height:1.7; }
  .card__meta { font-size:.68rem; gap:8px; }
  .card__image { aspect-ratio:4/3; }
  .card--data { padding:22px 12px; }
  .card--data .card__icon { font-size:1.7rem; margin-bottom:12px; }
  .card--data .card__number { font-size:2rem; overflow-wrap:anywhere; }
  .card--data .card__unit { font-size:.9rem; }
  .card--data .card__label { font-size:.77rem; }
  .capability-card { padding:22px 14px; }
  .capability-card__number { font-size:1.7rem; }
  .capability-card__icon { font-size:1.7rem; margin-bottom:12px; }
  .capability-card__title { font-size:1rem; }
  .capability-card__desc { font-size:.78rem; line-height:1.75; }
  .client-grid { grid-template-columns:repeat(2,minmax(0,1fr)); gap:12px; }
  .client-item { min-height:68px; padding:18px 10px; }
  .client-item span { font-size:.9rem !important; }
  .mobile-news-grid { grid-template-columns:minmax(0,1fr); gap:14px; }
  .mobile-news-grid .card, .card[style*="flex-direction:row"] { flex-direction:row; align-items:flex-start; }
  .mobile-news-grid .card__image, .card[style*="flex-direction:row"] .card__image { width:94px !important; height:114px; aspect-ratio:auto !important; flex-shrink:0; }
  .mobile-news-grid .card__body, .card[style*="flex-direction:row"] .card__body { flex:1; padding:12px; }
  .card[style*="flex-direction:row"] .card__desc { -webkit-line-clamp:3; }
  .cta-section { padding:32px 0; }
  .cta-section__content { padding:26px 20px; }
  .cta-section__title { font-size:1.5rem; line-height:1.5; }
  .cta-section__desc { font-size:.85rem; }
  .cta-section__tags { gap:8px; margin-bottom:22px; }
  .cta-section__tag { padding:6px 10px; font-size:.72rem; }
  .page-banner__title { font-size:1.5rem; }
  .page-banner__subtitle { font-size:.86rem; }
  .breadcrumb__inner { font-size:.77rem; }
  .detail__header { margin-bottom:24px; }
  .detail__title { font-size:1.4rem; line-height:1.5; }
  .detail__meta { font-size:.75rem; gap:10px; }
  .detail__body { gap:22px; margin-bottom:26px; }
  .detail__info { gap:8px; }
  .detail__info-title { font-size:1.15rem; }
  .detail__param { grid-template-columns:90px minmax(0,1fr); padding:9px 0; }
  .detail__param-label { font-size:.77rem; }
  .detail__param-value { font-size:.85rem; }
  .detail__content { font-size:.9rem; line-height:1.9; }
  .detail__nav { flex-direction:column; margin-top:24px; padding-top:24px; gap:14px; }
  .detail__nav a { font-size:.84rem; }
  .tabs { margin-bottom:24px; }
  .tab-btn { min-height:44px; font-size:.79rem; padding:11px 14px; }
  .about-intro { gap:22px; }
  .about-intro__text h2 { font-size:1.4rem; }
  .about-intro__text > div { font-size:.9rem !important; line-height:1.9 !important; }
  .contact-grid { gap:28px; }
  .contact-info__item { padding:18px 14px; gap:12px; }
  .contact-info__value { font-size:.86rem; overflow-wrap:anywhere; }
  .form__row { grid-template-columns:minmax(0,1fr); gap:0; }
  .form__input, .form__select, .form__textarea { min-width:0; max-width:100%; font-size:16px; }
  .form__checkcode { flex-wrap:wrap; }
  .search-form form { min-width:0; }
  .search-form .form__input { flex:1; width:0; }
  .search-form .btn { padding:0 15px; flex-shrink:0; }
  .pagination { margin-top:26px; }
  .footer__grid { grid-template-columns:repeat(2,minmax(0,1fr)); gap:26px 20px; padding:32px 20px 26px; }
  .footer__grid > :first-child, .footer__grid > :nth-child(2) { grid-column:1/-1; }
  .footer__brand-desc { font-size:.79rem; margin:10px 0 12px; }
  .footer__col-title { font-size:.85rem; margin-bottom:12px; }
  .footer__links { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:0 8px; }
  .footer__links a { min-height:44px; padding:10px 0; font-size:.75rem; }
  .footer__contact-item { font-size:.73rem; gap:6px; overflow-wrap:anywhere; }
  .footer__qrcode { width:90px; height:90px; }
  .friend-links { padding:14px 20px; gap:12px; font-size:.74rem; }
  .footer__bottom-inner { padding:0 20px; font-size:.73rem; }
  .kefu-btn { width:42px; height:42px; bottom:72px; right:12px; font-size:1rem; }
  .back-top { width:40px; height:40px; bottom:20px; right:13px; }
}