/**
 * 办公文教采购平台 — 主样式表
 * 主题：白色+浅灰(#F0F2F5)+深蓝(#1A365D)+橙色(#ED8936)
 * 风格：亮色、干净利落、专业商务
 * 依赖：Font Awesome 6, Swiper 11, AOS 2.3.4, Google Fonts
 */


/* ============================================================
   CSS 变量体系
   ============================================================ */
:root {
  /* 基底色 */
  --white: #FFFFFF;
  --bg: #F5F7FA;
  --bg-alt: #EDF2F7;
  --bg-card: #FFFFFF;

  /* 主色 — 深蓝 */
  --primary: #1A365D;
  --primary-light: #2A4A7F;
  --primary-dark: #122A4A;
  --primary-dim: rgba(26, 54, 93, 0.06);

  /* 点缀色 — 橙色 */
  --accent: #ED8936;
  --accent-hover: #DD6B20;
  --accent-light: #FEEBC8;
  --accent-dim: rgba(237, 137, 54, 0.08);

  /* 文字色阶 */
  --text: #1A202C;
  --text-secondary: #4A5568;
  --text-muted: #718096;
  --text-light: #A0AEC0;

  /* 边框 */
  --border: #E2E8F0;
  --border-light: #EDF2F7;
  --border-focus: #1A365D;

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.12);

  /* 圆角 */
  --radius-sm: 4px;
  --radius: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* 间距 */
  --section-py: 80px;
  --container-max: 1200px;
  --header-h: 68px;

  /* 过渡 */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.25, 0.8, 0.25, 1);
  --duration: 200ms;
  --duration-slow: 350ms;

  /* 字体 */
  --font: 'Noto Sans SC', 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  --font-heading: 'Noto Sans SC', 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

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

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

body {
  background: var(--bg);
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-width: 320px;
}

::selection {
  background: rgba(26, 54, 93, 0.15);
  color: var(--primary);
}

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

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

ul, ol { list-style: none; }

input, textarea, select, button {
  font-family: inherit;
  font-size: inherit;
}

input::placeholder, textarea::placeholder {
  color: var(--text-muted);
  opacity: 1;
}

/* ============================================================
   排版
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.02em;
}

.section-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.7;
}

/* 居中标题区 */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}

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

/* ============================================================
   布局容器
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

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

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

/* ============================================================
   Header 头部 — 白色实底
   ============================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: var(--white);
  border-bottom: 1px solid var(--border-light);
  transition: box-shadow var(--duration-slow) var(--ease-out);
}

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

.header__inner {
  display: flex;
  align-items: center;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

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

.header__logo-icon {
  width: 40px;
  height: 40px;
  background: var(--primary);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  color: #fff;
  font-weight: 700;
}

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

.header__logo-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

.header__logo-sub {
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* 主导航 */
.header__nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

.header__nav-link {
  padding: 8px 14px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  border-radius: var(--radius);
  transition: all var(--duration) var(--ease-out);
  white-space: nowrap;
  font-weight: 500;
}

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

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

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

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

.header__dropdown a {
  display: block;
  padding: 9px 18px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: all var(--duration) var(--ease-out);
}

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

/* 头部右侧操作区 */
.header__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: 16px;
}

/* 搜索按钮 */
.header__search-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: all var(--duration) var(--ease-out);
}

.header__search-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* CTA 按钮 */
.header__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  background: var(--accent);
  color: #fff;
  font-size: 0.84rem;
  font-weight: 600;
  border-radius: var(--radius);
  transition: all var(--duration) var(--ease-out);
  white-space: nowrap;
}

.header__cta:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(237, 137, 54, 0.3);
}

/* ============================================================
   汉堡菜单（移动端）
   ============================================================ */
.hamburger {
  display: none;
  width: 38px;
  height: 38px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  z-index: 110;
  margin-left: 8px;
  transition: border-color var(--duration);
}

.hamburger:hover {
  border-color: var(--primary);
}

.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
  transition: all var(--duration-slow) var(--ease-out);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* 移动端侧滑菜单 */
.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 80%;
  max-width: 340px;
  background: var(--white);
  z-index: 120;
  transform: translateX(-100%);
  transition: transform var(--duration-slow) var(--ease-out);
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
}

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

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

.mobile-nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-light);
}

.mobile-nav__link {
  display: block;
  padding: 13px 14px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  border-radius: var(--radius);
  font-weight: 500;
  transition: all var(--duration);
}

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

.mobile-nav__sub {
  padding-left: 14px;
  display: none;
}

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

.mobile-nav__sub a {
  display: block;
  padding: 10px 14px;
  font-size: 0.88rem;
  color: var(--text-muted);
  border-radius: var(--radius);
  transition: all var(--duration);
}

.mobile-nav__sub a:hover {
  color: var(--primary);
  background: var(--primary-dim);
}

.mobile-nav__overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 115;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-slow) var(--ease-out);
}

.mobile-nav__overlay.show {
  opacity: 1;
  pointer-events: auto;
}

/* ============================================================
   按钮系统
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all var(--duration) var(--ease-out);
  white-space: nowrap;
  line-height: 1.4;
}

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

.btn--primary:hover {
  background: var(--primary-light);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(26, 54, 93, 0.25);
}

.btn--accent {
  background: var(--accent);
  color: #fff;
}

.btn--accent:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(237, 137, 54, 0.3);
}

.btn--outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}

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

.btn--outline-accent {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
}

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

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

.btn--ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-dim);
}

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

.btn--white:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.btn--sm {
  padding: 7px 14px;
  font-size: 0.82rem;
}

.btn--lg {
  padding: 14px 32px;
  font-size: 1rem;
}

.btn i { font-size: 0.9em; }

/* ============================================================
   首页 — Hero Banner
   ============================================================ */
.hero {
  position: relative;
  height: 520px;
  overflow: hidden;
  background: var(--primary-dark);
}

.hero .swiper {
  position: absolute;
  inset: 0;
}

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

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(180deg, rgba(18, 42, 74, 0.5) 0%, rgba(18, 42, 74, 0.3) 50%, rgba(18, 42, 74, 0.7) 100%);
}

.hero__content {
  position: relative;
  z-index: 3;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  padding-top: var(--header-h);
}

.hero__title {
  font-size: clamp(1.75rem, 5vw, 3rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 0.75rem;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero__subtitle {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 1.5rem;
  font-weight: 400;
  max-width: 600px;
}

.hero__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

/* Hero 分页器 */
.hero-pagination {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 4;
  display: flex;
  gap: 8px;
}

.hero-pagination .swiper-pagination-bullet {
  width: 32px;
  height: 3px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.4);
  opacity: 1;
  transition: all var(--duration-slow);
  cursor: pointer;
}

.hero-pagination .swiper-pagination-bullet-active {
  width: 48px;
  background: var(--accent);
}

/* ============================================================
   首页 — 产品分类卡片
   ============================================================ */
.categories {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.category-card {
  text-align: center;
  padding: 36px 20px 28px;
  background: var(--bg);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  transition: all var(--duration) var(--ease-out);
  display: flex;
  flex-direction: column;
  align-items: center;
}

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

.category-card__icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: var(--primary-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary);
  margin-bottom: 16px;
  transition: all var(--duration) var(--ease-out);
}

.category-card:hover .category-card__icon {
  background: var(--primary);
  color: #fff;
}

.category-card__name {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.category-card__count {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ============================================================
   首页 — 产品网格 / 列表网格
   ============================================================ */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

/* 通用卡片样式 */
.card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--duration) var(--ease-out);
  display: flex;
  flex-direction: column;
}

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

.card__image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--bg);
}

.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(1.04);
}

.card__body {
  padding: 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card__tag {
  display: inline-block;
  padding: 2px 8px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-light);
  border-radius: 3px;
  margin-bottom: 8px;
  align-self: flex-start;
}

.card__title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.card__meta span {
  padding: 1px 6px;
  background: var(--bg);
  border-radius: 3px;
  font-size: 0.75rem;
}

/* 查看更多按钮行 */
.more-row {
  text-align: center;
  margin-top: 36px;
}

/* ============================================================
   首页 — 采购优势 (Features)
   ============================================================ */
.features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.feature-card {
  text-align: center;
  padding: 36px 20px 28px;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  transition: all var(--duration) var(--ease-out);
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.feature-card__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: var(--radius);
  background: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  color: var(--accent);
  transition: all var(--duration) var(--ease-out);
}

.feature-card:hover .feature-card__icon {
  background: var(--accent);
  color: #fff;
}

.feature-card__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

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

/* ============================================================
   首页 — 解决方案卡片
   ============================================================ */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.solution-card {
  padding: 32px 24px;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  text-align: center;
  transition: all var(--duration) var(--ease-out);
}

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

.solution-card__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: var(--radius);
  background: var(--primary-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  color: var(--primary);
}

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

.solution-card__desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============================================================
   首页 — 案例 / 品牌墙
   ============================================================ */
.case-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.case-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--duration) var(--ease-out);
}

.case-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.case-card__image {
  aspect-ratio: 16/10;
  background: var(--bg);
  overflow: hidden;
}

.case-card__image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 20px;
}

.case-card__body {
  padding: 14px;
  text-align: center;
  border-top: 1px solid var(--border-light);
}

.case-card__title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
}

/* ============================================================
   首页 — 新闻列表
   ============================================================ */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.news-item {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-light);
  transition: all var(--duration);
}

.news-item:last-child {
  border-bottom: none;
}

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

.news-item__thumb {
  width: 160px;
  height: 100px;
  border-radius: var(--radius);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg);
}

.news-item__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-item__info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.news-item__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-item__date {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

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

/* ============================================================
   首页 — CTA 区域
   ============================================================ */
.cta-section {
  background: var(--bg);
  border-top: 2px solid var(--accent);
  text-align: center;
  padding: 64px 0;
}

.cta-section__text {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.7;
}

.cta-section__actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================
   内页 Banner
   ============================================================ */
.inner-banner {
  position: relative;
  height: 280px;
  overflow: hidden;
  background: var(--primary-dark);
  margin-top: var(--header-h);
}

.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(18, 42, 74, 0.6) 0%, rgba(18, 42, 74, 0.7) 100%);
}

.inner-banner__content {
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.inner-banner__title {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
}

.inner-banner__subtitle {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.75);
}

/* 面包屑 */
.breadcrumb-bar {
  background: var(--white);
  border-bottom: 1px solid var(--border-light);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 12px 24px;
  font-size: 0.82rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--text-secondary);
}

.breadcrumb a:hover {
  color: var(--primary);
}

.breadcrumb i, .breadcrumb .separator {
  font-size: 0.65rem;
  color: var(--text-light);
}

/* ============================================================
   内页两栏布局（侧边栏 + 内容）
   ============================================================ */
.page-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 32px;
  align-items: start;
}

/* 侧边栏 */
.sidebar {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  position: sticky;
  top: calc(var(--header-h) + 20px);
}

.sidebar__title {
  padding: 18px 20px;
  background: var(--primary);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
}

.sidebar__title p {
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 400;
  margin-top: 2px;
}

.sidebar__nav a {
  display: block;
  padding: 13px 24px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-light);
  transition: all var(--duration);
  font-weight: 500;
}

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

.sidebar__nav a:hover,
.sidebar__nav a.active {
  color: var(--primary);
  background: var(--primary-dim);
  padding-left: 28px;
}

/* 侧边栏 — 联系我们卡片 */
.sidebar__contact {
  padding: 20px;
  margin-top: 16px;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
}

.sidebar__contact h4 {
  font-size: 0.95rem;
  margin-bottom: 12px;
}

.sidebar__contact-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

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

/* ============================================================
   产品列表 — 工具栏
   ============================================================ */
.list-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding: 12px 16px;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 8px;
}

.list-toolbar__count {
  font-weight: 500;
}

.list-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

/* 子栏目过滤栏 */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: 24px;
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.filter-bar::-webkit-scrollbar { display: none; }

.filter-bar a {
  display: inline-flex;
  padding: 7px 16px;
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 100px;
  white-space: nowrap;
  flex-shrink: 0;
  transition: all var(--duration);
}

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

/* ============================================================
   产品详情页
   ============================================================ */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

/* 产品图轮播 */
.product-gallery {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--border-light);
}

.product-gallery .swiper-slide {
  aspect-ratio: 4/3;
}

.product-gallery .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-gallery__thumbs {
  margin-top: 10px;
}

.product-gallery__thumbs .swiper-slide {
  aspect-ratio: 1;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  opacity: 0.6;
  transition: all var(--duration);
}

.product-gallery__thumbs .swiper-slide-thumb-active {
  border-color: var(--primary);
  opacity: 1;
}

.product-gallery__thumbs .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 产品信息区 */
.product-info__title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  line-height: 1.3;
}

.product-info__params {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 20px;
  padding: 16px;
  background: var(--bg);
  border-radius: var(--radius);
}

.product-info__param {
  font-size: 0.85rem;
}

.product-info__param-label {
  color: var(--text-muted);
  font-size: 0.78rem;
}

.product-info__param-value {
  color: var(--text);
  font-weight: 600;
}

.product-info__actions {
  display: flex;
  gap: 10px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

/* 产品详情 Tab */
.detail-tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border);
  margin-bottom: 24px;
}

.detail-tabs__btn {
  padding: 12px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: all var(--duration);
}

.detail-tabs__btn:hover {
  color: var(--primary);
}

.detail-tabs__btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.tab-panel {
  display: none;
}

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

/* 正文内容 */
.content-body {
  color: var(--text-secondary);
  line-height: 1.9;
  font-size: 0.95rem;
  word-wrap: break-word;
}

.content-body img {
  border-radius: var(--radius);
  margin: 20px auto;
  max-width: 100%;
}

.content-body p { margin-bottom: 14px; }

.content-body h2, .content-body h3 {
  color: var(--text);
  margin-top: 28px;
  margin-bottom: 14px;
}

.content-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
}

.content-body table td, .content-body table th {
  padding: 10px 14px;
  border: 1px solid var(--border);
  font-size: 0.88rem;
}

.content-body table th {
  background: var(--bg);
  font-weight: 600;
  color: var(--text);
}

/* 上下篇 */
.detail__pager {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--border-light);
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 8px;
}

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

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

/* 相关推荐 */
.related-section {
  margin-top: 56px;
}

.related-section h3 {
  font-size: 1.25rem;
  margin-bottom: 20px;
  color: var(--text);
}

/* ============================================================
   详情页通用（单页/案例/新闻）
   ============================================================ */
.detail {
  max-width: 900px;
  margin: 0 auto;
}

.detail__header {
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-light);
}

.detail__title {
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  margin-bottom: 10px;
}

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

.detail__meta-row i {
  margin-right: 3px;
  color: var(--accent);
}

/* ============================================================
   案例列表
   ============================================================ */
.case-list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* ============================================================
   联系我们
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  margin-bottom: 10px;
  transition: all var(--duration);
}

.contact-info__item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.contact-info__icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  background: var(--primary-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

.contact-info__label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
}

.contact-info__value {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* 联系表单 */
.contact-form {
  padding: 32px;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
}

.contact-form h3 {
  font-size: 1.2rem;
  margin-bottom: 6px;
}

.contact-form > p {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 20px;
}

/* ============================================================
   表单通用
   ============================================================ */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.84rem;
  color: var(--text-secondary);
  margin-bottom: 5px;
  font-weight: 500;
}

.form-group label .required {
  color: #E53E3E;
  margin-left: 2px;
}

.form-control {
  width: 100%;
  padding: 11px 14px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.9rem;
  transition: all var(--duration);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-dim);
}

textarea.form-control {
  resize: vertical;
  min-height: 100px;
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23718096' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 34px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* ============================================================
   搜索页
   ============================================================ */
.search-section {
  padding-top: calc(var(--header-h) + 40px);
}

.search-box {
  max-width: 700px;
  margin: 0 auto;
}

.search-form-row {
  display: flex;
  gap: 10px;
}

.search-form-row .form-control {
  flex: 1;
}

.search-input-wrap {
  position: relative;
  flex: 1;
}

.search-input-wrap i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.95rem;
  z-index: 1;
}

.search-input-wrap .form-control {
  padding-left: 40px;
}

.search-result-item {
  display: flex;
  gap: 16px;
  padding: 18px;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  transition: all var(--duration);
  margin-bottom: 10px;
}

.search-result-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.search-result-item__thumb {
  width: 120px;
  height: 90px;
  border-radius: var(--radius);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg);
}

.search-result-item__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.search-result-item__info {
  flex: 1;
  min-width: 0;
}

.search-result-item__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-result-item__date {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.search-result-item__desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============================================================
   分页
   ============================================================ */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--duration);
  background: var(--white);
}

.pagination a:hover {
  background: var(--primary-dim);
  border-color: var(--primary);
  color: var(--primary);
}

.pagination .active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  font-weight: 600;
}

.pagination .disabled {
  color: var(--text-light);
  pointer-events: none;
  background: var(--bg);
}

/* ============================================================
   空状态
   ============================================================ */
.empty-state {
  text-align: center;
  padding: 60px 20px;
}

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

.empty-state p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ============================================================
   FAQ / 解决方案页
   ============================================================ */
.solution-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 48px 0;
}

.solution-block:nth-child(even) {
  direction: rtl;
}

.solution-block:nth-child(even) > * {
  direction: ltr;
}

.solution-block__image {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
}

.solution-block__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.solution-block__text h2 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.solution-block__text p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

/* ============================================================
   Footer 底部
   ============================================================ */
.footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.7);
  border-top: 3px solid var(--accent);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 36px;
  padding: 56px 0 40px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.footer__brand-desc {
  font-size: 0.84rem;
  line-height: 1.7;
  margin: 14px 0;
  color: rgba(255, 255, 255, 0.55);
}

.footer__social {
  display: flex;
  gap: 8px;
}

.footer__social a {
  width: 34px;
  height: 34px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.9rem;
  transition: all var(--duration);
}

.footer__social a:hover {
  background: var(--accent);
  color: #fff;
}

.footer__col-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}

.footer__col-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer__links a {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.55);
  transition: color var(--duration);
}

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

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.83rem;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 9px;
}

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

.footer__qrcode {
  width: 110px;
  height: 110px;
  background: #fff;
  border-radius: var(--radius);
  padding: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  color: #999;
}

/* 友情链接 */
.friend-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  padding: 16px 0;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.friend-links__label {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
  flex-shrink: 0;
}

.friend-links a {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
  transition: color var(--duration);
}

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

/* 底部版权 */
.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 18px 0;
}

.footer__bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.4);
  flex-wrap: wrap;
  gap: 8px;
}

.footer__bottom a {
  color: rgba(255, 255, 255, 0.4);
}

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

/* ============================================================
   在线客服按钮
   ============================================================ */
.kefu-btn {
  position: fixed;
  right: 16px;
  bottom: 120px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  cursor: pointer;
  z-index: 90;
  box-shadow: 0 4px 16px rgba(237, 137, 54, 0.4);
  transition: all var(--duration);
  border: none;
}

.kefu-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 24px rgba(237, 137, 54, 0.5);
}

.kefu-btn.pulse {
  animation: kefuPulse 2s infinite;
}

@keyframes kefuPulse {
  0% { box-shadow: 0 0 0 0 rgba(237, 137, 54, 0.5); }
  70% { box-shadow: 0 0 0 14px rgba(237, 137, 54, 0); }
  100% { box-shadow: 0 0 0 0 rgba(237, 137, 54, 0); }
}

/* ============================================================
   返回顶部
   ============================================================ */
.back-top {
  position: fixed;
  right: 16px;
  bottom: 64px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--white);
  border: 1px solid var(--border);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  cursor: pointer;
  z-index: 85;
  opacity: 0;
  pointer-events: none;
  transition: all var(--duration);
  box-shadow: var(--shadow);
}

.back-top.show {
  opacity: 1;
  pointer-events: auto;
}

.back-top:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ============================================================
   响应式 — 平板 (768px - 1023px)
   ============================================================ */
@media (max-width: 1023px) {
  :root {
    --section-py: 56px;
  }

  .header__nav,
  .header__actions {
    display: none;
  }

  .hamburger {
    display: flex;
  }

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

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

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

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

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

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

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

  .page-layout {
    grid-template-columns: 1fr;
  }

  .solution-block {
    grid-template-columns: 1fr;
  }

  .hero {
    height: 420px;
  }

  .inner-banner {
    height: 220px;
  }

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

/* ============================================================
   响应式 — 移动端 (< 768px)
   ============================================================ */
@media (max-width: 767px) {
  :root {
    --section-py: 44px;
  }

  body {
    font-size: 14px;
  }

  .hero {
    height: 380px;
  }

  .hero__title {
    font-size: 1.5rem;
  }

  .categories,
  .product-grid,
  .features {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .solutions-grid,
  .case-list-grid {
    grid-template-columns: 1fr;
  }

  .case-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .list-grid-4 {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

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

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

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

  .category-card {
    padding: 24px 14px 20px;
  }

  .category-card__icon {
    width: 48px;
    height: 48px;
    font-size: 1.2rem;
  }

  .card__body {
    padding: 12px;
  }

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

  .detail-tabs__btn {
    padding: 10px 16px;
    font-size: 0.85rem;
  }

  .inner-banner {
    height: 180px;
  }

  .search-result-item {
    flex-direction: column;
  }

  .search-result-item__thumb {
    width: 100%;
    height: 160px;
  }

  .contact-form {
    padding: 20px;
  }

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .back-top {
    right: 10px;
    bottom: 48px;
  }

  .kefu-btn {
    right: 10px;
    bottom: 100px;
  }

  .detail-tabs {
    overflow-x: auto;
  }

  .detail-tabs__btn {
    white-space: nowrap;
  }
}

/* ============================================================
   偏好：减少动画
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* June 23 mobile office procurement layout; original desktop retained. */
@media(max-width:1023px){
 body.page-inner{padding-top:calc(var(--header-h) + 16px)}.container{padding-left:20px;padding-right:20px}.inner-banner{margin-top:0;height:auto!important;min-height:150px}.inner-banner__content{padding:28px 20px}.inner-banner__title{font-size:26px;line-height:1.45;overflow-wrap:anywhere}.inner-banner__subtitle{font-size:14px;line-height:1.7;overflow-wrap:anywhere}.breadcrumb{padding:12px 20px;line-height:1.8;overflow-wrap:anywhere}
 .header__inner{padding:0 20px;gap:8px}.header__logo{min-width:0;gap:8px}.header__logo-text{min-width:0}.header__logo-icon,.hamburger{flex-shrink:0}.hamburger{width:44px;height:44px}.header{z-index:125}
 .mobile-nav{top:var(--header-h);height:calc(100dvh - var(--header-h));width:calc(100vw - 48px);max-width:340px;visibility:hidden;pointer-events:none}.mobile-nav.open{visibility:visible;pointer-events:auto}.mobile-nav__inner{padding:20px 16px}.mobile-nav__link{font-size:14px;min-height:44px;padding:11px 12px}.mobile-nav__sub{padding-left:8px}.mobile-nav__sub.open{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px}.mobile-nav__sub a{font-size:12px;padding:10px}.mobile-nav__sub a:first-child{grid-column:1/-1}
 .page-layout>*,.product-detail>*,.product-grid>*,.list-grid-4>*,.contact-grid>*,.solution-block>*,.footer__grid>*{min-width:0}.product-info__param-value,.content-body,.detail__body,.detail__pager,.contact-info__value,.footer__contact-item{overflow-wrap:anywhere}.content-body img,.detail__body img{max-width:100%;height:auto}.content-body table,.detail__body table{max-width:100%;width:100%;table-layout:fixed}.content-body td,.content-body th{overflow-wrap:anywhere}
 .detail-tabs{flex-wrap:wrap;overflow:visible}.detail-tabs__btn{flex:1;min-width:0;white-space:normal;padding:12px 8px}.form-control,.form-input,.form-select,.form-textarea,.form-group input,.form-group textarea,.search-form input{min-width:0;max-width:100%;font-size:16px}.form-group{min-width:0}.form-group:has([name=checkcode]),.form-group>div:has([name=checkcode]){flex-wrap:wrap}
 .sidebar{padding:18px}.sidebar__nav{display:flex;flex-wrap:wrap;gap:8px}.sidebar__nav a{padding:10px 12px;font-size:13px}.detail__meta,.detail__meta-row,.detail__pager,.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:translateY(0)}
}
@media(max-width:767px){
 :root{--section-py:30px}.header__logo-icon{width:34px;height:34px;font-size:20px}.header__logo-name{font-size:16px}.header__logo-sub{font-size:9px;letter-spacing:0}
 .hero{height:350px}.hero__content{padding:70px 20px 30px}.hero__title{font-size:25px;line-height:1.4}.hero__subtitle{font-size:13px;line-height:1.8;margin-bottom:22px}.hero__actions{gap:10px}.btn,.btn--lg{min-height:44px;padding:12px 14px;font-size:13px;gap:7px;white-space:normal}
 .section-header{margin-bottom:22px}.section-title{font-size:23px;line-height:1.45}.section-tag{font-size:10px;letter-spacing:.12em}.section-subtitle{font-size:13px;line-height:1.75}.more-row{margin-top:22px}
 .categories,.product-grid,.features,.list-grid-4{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.category-card{padding:18px 12px}.category-card__icon{width:38px;height:38px;font-size:18px;margin-bottom:10px}.category-card__name{font-size:16px}.category-card__count{font-size:11px}
 .card__image{height:140px;aspect-ratio:auto}.card__body{padding:14px 10px}.card__title{font-size:15px;line-height:1.5;display:block;-webkit-line-clamp:unset}.card__meta{font-size:11px;gap:6px;overflow-wrap:anywhere}.card__desc{font-size:12px;line-height:1.7}
 .feature-card{padding:20px 12px}.feature-card__icon{width:40px;height:40px;font-size:20px;margin-bottom:12px}.feature-card__title{font-size:16px;line-height:1.5}.feature-card__desc{font-size:12px;line-height:1.75}
 .solutions-grid{gap:12px}.solution-card{display:grid;grid-template-columns:40px minmax(0,1fr);gap:6px 12px;padding:20px 16px;text-align:left}.solution-card__icon{width:40px;height:40px;font-size:20px;grid-row:1/3;margin:0}.solution-card__title{font-size:17px;line-height:1.5;margin:0}.solution-card__desc{font-size:12px;line-height:1.75}
 .case-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.case-card__image{height:130px}.case-card__body{padding:12px 10px}.case-card__title{font-size:14px;line-height:1.5}.case-list-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
 .news-item{flex-direction:row;gap:12px;padding:14px 12px}.news-item__thumb{width:78px;height:90px;flex-shrink:0}.news-item__info{min-width:0}.news-item__title{font-size:16px;line-height:1.5}.news-item__desc{font-size:12px;line-height:1.7}.news-item__date{font-size:11px}
 .cta-section{padding:34px 0}.cta-section__text{font-size:13px;line-height:1.8}.cta-section__actions{gap:10px;flex-wrap:wrap}
 .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 16px;padding:30px 20px 24px}.footer__grid>div:first-child{grid-column:1/-1}.footer__brand-desc{font-size:12px;line-height:1.8}.footer__col-title{font-size:15px;margin-bottom:12px}.footer__links a,.footer__contact-item{font-size:12px}.footer__bottom-inner{font-size:11px;align-items:flex-start;text-align:left}
 .product-detail{gap:22px}.product-gallery .swiper-slide{height:240px}.product-info__title,.detail__title{font-size:24px;line-height:1.5}.product-info__params{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.product-info__param{padding:12px 10px}.product-info__param-value{font-size:13px;line-height:1.6}.content-body,.detail__body{font-size:14px;line-height:1.9}.detail__pager{gap:12px;font-size:12px;text-align:left;align-items:flex-start}
 .solution-block{gap:20px;padding:22px 16px}.solution-block__image img{max-height:210px;object-fit:cover}.solution-block__text h2{font-size:23px;line-height:1.5}.solution-block__text p{font-size:13px;line-height:1.85}
 .contact-grid{gap:24px}.contact-form{padding:22px 16px}.contact-info__value{font-size:14px}.form-row{grid-template-columns:1fr;gap:0}.search-result-item{flex-direction:row;gap:12px}.search-result-item__thumb{width:78px;height:90px;flex-shrink:0}.search-result-item>div{min-width:0}.search-form{flex-wrap:wrap}.search-form input{width:100%;flex-basis:100%}
}