/**
 * 潮品数码社 — 消费电子企业站 主样式
 * 亮色主题：深空灰 + 白色 + 活力橙点缀
 * 设计：极窄圆角(4px)、大留白、真实产品质感
 * 依赖：Swiper, AOS, Font Awesome 6, Fancybox
 * ★ 纯原生CSS，无框架依赖
 * ★ 架构：第三方模板模式 ({pboot:sitedomain}/skin/)
 */

/* ============================================================
   CSS 变量体系
   ============================================================ */
:root {
  /* 基底色 */
  --bg-body: #FAFAFA;
  --bg-white: #FFFFFF;
  --bg-light: #F5F5F7;
  --bg-card: #FFFFFF;
  --bg-card-hover: #FAFAFA;

  /* 品牌色 */
  --deep: #1A1A2E;
  --deep-light: #2D2D44;
  --silver: #E5E7EB;
  --silver-dark: #C5C7CB;

  /* 点缀色 */
  --orange: #FF6B35;
  --orange-hover: #E55A2B;
  --orange-light: rgba(255, 107, 53, 0.08);
  --orange-dim: rgba(255, 107, 53, 0.15);
  --blue: #2563EB;
  --blue-hover: #1D4ED8;
  --blue-light: rgba(37, 99, 235, 0.06);
  --green: #16A34A;
  --green-light: rgba(22, 163, 74, 0.08);
  --red: #DC2626;

  /* 文字色阶 */
  --text-primary: #1A1A24;
  --text-secondary: #6B7280;
  --text-muted: #9CA3AF;
  --text-anti: #FFFFFF;

  /* 边框 */
  --border: #E5E7EB;
  --border-light: #F3F4F6;
  --border-input: #D1D5DB;
  --border-focus: #FF6B35;

  /* 阴影 — 极轻 */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 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, 0.06);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.1);

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

  /* 间距 */
  --section-py: 88px;
  --section-py-sm: 56px;
  --container-max: 1240px;
  --container-narrow: 860px;
  --header-h: 68px;

  /* 过渡 */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;

  /* 字体 */
  --font-sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Segoe UI', sans-serif;
  --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-body);
  overflow-x: hidden;
  padding-top: var(--header-h);
}

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

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

ul, ol {
  list-style: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font: inherit;
}

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

.container--narrow {
  max-width: var(--container-narrow);
}

/* ============================================================
   Header 头部 — 白色实底 + 深灰文字
   ============================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--duration-normal) var(--ease-out);
}

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

.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: 40px;
}

.header__logo-icon {
  width: 36px;
  height: 36px;
  background: var(--orange);
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
}

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

.header__logo-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--deep);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.header__logo-sub {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* 主导航 */
.header__nav {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 100%;
}

.header__nav > a,
.header__nav-item > a {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
  transition: color var(--duration-fast) var(--ease-out);
  position: relative;
}

.header__nav > a::after,
.header__nav-item > a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--orange);
  border-radius: 1px;
  transition: width var(--duration-normal) var(--ease-out);
}

.header__nav > a:hover,
.header__nav-item > a:hover,
.header__nav > a.active,
.header__nav-item > a.active {
  color: var(--deep);
}

.header__nav > a:hover::after,
.header__nav-item > a:hover::after,
.header__nav > a.active::after,
.header__nav-item > a.active::after {
  width: calc(100% - 32px);
}

/* 导航下拉 */
.header__nav-item {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
}

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

.header__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  padding: 8px 0;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--duration-normal) var(--ease-out);
  z-index: 60;
}

.header__dropdown a {
  display: block;
  padding: 10px 20px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  white-space: nowrap;
  transition: all var(--duration-fast) var(--ease-out);
}

.header__dropdown a:hover {
  color: var(--orange);
  background: var(--orange-light);
}

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

.header__search-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  transition: all var(--duration-fast) var(--ease-out);
}

.header__search-btn:hover {
  color: var(--deep);
  background: var(--bg-light);
}

.header__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  background: var(--orange);
  color: #fff !important;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-xs);
  transition: background var(--duration-fast) var(--ease-out);
}

.header__cta:hover {
  background: var(--orange-hover);
}

/* 汉堡菜单（独立于 actions） */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  gap: 5px;
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: background var(--duration-fast);
  z-index: 110;
  flex-shrink: 0;
  margin-left: 8px;
}

.hamburger:hover {
  background: var(--bg-light);
}

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

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

/* 移动端侧滑菜单 */
.mobile-nav {
  position: fixed;
  top: 0;
  right: 0;
  width: 300px;
  height: 100vh;
  background: var(--bg-white);
  box-shadow: var(--shadow-xl);
  z-index: 115;
  transform: translateX(100%);
  transition: transform var(--duration-normal) var(--ease-out);
  overflow-y: auto;
}

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

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

.mobile-nav__link {
  display: block;
  padding: 14px 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-light);
}

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

.mobile-nav__sub {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-normal) var(--ease-out);
  padding-left: 16px;
}

.mobile-nav__sub.open {
  max-height: 500px;
}

.mobile-nav__sub a {
  display: block;
  padding: 10px 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-light);
}

.mobile-nav__overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 110;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-normal) var(--ease-out);
}

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

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

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

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

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

/* 区块标签 */
.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 12px;
}

/* 区块标题 */
.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--deep);
  letter-spacing: -0.03em;
  line-height: 1.25;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 520px;
  line-height: 1.6;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header--left {
  text-align: left;
}

/* ============================================================
   按钮系统
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-xs);
  transition: all var(--duration-fast) var(--ease-out);
  cursor: pointer;
  white-space: nowrap;
  line-height: 1.4;
}

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

.btn--primary:hover {
  background: var(--orange-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

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

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

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

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

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

.btn--blue:hover {
  background: var(--blue-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

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

.btn--sm {
  padding: 8px 16px;
  font-size: 0.8rem;
}

/* 脉冲按钮 */
.btn--pulse {
  animation: btnPulse 2s infinite;
}

@keyframes btnPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 107, 53, 0.4); }
  50% { box-shadow: 0 0 0 12px rgba(255, 107, 53, 0); }
}

/* ============================================================
   Hero 首页 Banner
   ============================================================ */
.hero {
  position: relative;
  height: 600px;
  overflow: hidden;
  background: var(--deep);
}

.hero .swiper {
  width: 100%;
  height: 100%;
}

.hero .swiper-slide {
  position: relative;
}

.hero__slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26, 26, 46, 0.75) 0%, rgba(26, 26, 46, 0.35) 50%, rgba(26, 26, 46, 0.15) 100%);
  z-index: 1;
}

.hero__content {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.hero__title {
  font-size: 3.5rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.04em;
  line-height: 1.15;
  max-width: 640px;
  margin-bottom: 16px;
}

.hero__subtitle {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.85);
  max-width: 500px;
  margin-bottom: 32px;
  line-height: 1.6;
}

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

.hero__actions .btn--primary {
  background: var(--orange);
}

.hero__actions .btn--outline {
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
}

.hero__actions .btn--outline:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

/* Hero Pagination */
.hero .swiper-pagination {
  bottom: 28px !important;
  z-index: 3;
}

.hero .swiper-pagination-bullet {
  width: 8px;
  height: 8px;
  background: rgba(255, 255, 255, 0.5);
  opacity: 1;
  transition: all var(--duration-normal);
}

.hero .swiper-pagination-bullet-active {
  background: var(--orange);
  width: 24px;
  border-radius: 4px;
}

/* Hero 滚动指示器 */
.hero__scroll {
  position: absolute;
  bottom: 60px;
  right: 40px;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.3);
  position: relative;
  overflow: hidden;
}

.hero__scroll-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 30%;
  background: #fff;
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(340%); }
}

/* ============================================================
   产品卡片
   ============================================================ */
.card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out);
  cursor: pointer;
}

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

.card__image {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--bg-light);
}

.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__badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 3px 10px;
  background: var(--orange);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: var(--radius-xs);
  z-index: 2;
}

.card__body {
  padding: 16px;
}

.card__tag {
  display: inline-block;
  font-size: 0.72rem;
  color: var(--blue);
  font-weight: 600;
  margin-bottom: 6px;
}

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

.card__desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

.card__price {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--orange);
  margin-top: 4px;
}

.card__price--original {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-decoration: line-through;
  font-weight: 400;
  margin-left: 6px;
}

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

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

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

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

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

/* ============================================================
   Swiper 产品横向滚动
   ============================================================ */
.product-swiper {
  padding: 0 24px;
}

.product-swiper .swiper-slide {
  width: 280px;
  height: auto;
}

.product-swiper .swiper-button-next,
.product-swiper .swiper-button-prev {
  width: 44px;
  height: 44px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--deep);
  box-shadow: var(--shadow-sm);
}

.product-swiper .swiper-button-next::after,
.product-swiper .swiper-button-prev::after {
  font-size: 1rem;
  font-weight: 700;
}

.product-swiper .swiper-button-disabled {
  opacity: 0;
}

/* ============================================================
   特色图标区
   ============================================================ */
.features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.feature-card {
  text-align: center;
  padding: 28px 20px;
}

.feature-card__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--orange-light);
  border-radius: var(--radius-sm);
  color: var(--orange);
  font-size: 1.4rem;
}

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

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

/* ============================================================
   两种卡片布局（穿戴 / 家电）
   ============================================================ */
.wearable-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.wearable-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  transition: all var(--duration-normal) var(--ease-out);
}

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

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

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

.wearable-card:hover .wearable-card__image img {
  transform: scale(1.04);
}

.wearable-card__body {
  padding: 24px;
}

.wearable-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.wearable-card__tag {
  padding: 2px 10px;
  background: var(--blue-light);
  color: var(--blue);
  font-size: 0.72rem;
  font-weight: 600;
  border-radius: 20px;
}

.wearable-card__title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--deep);
  margin-bottom: 6px;
}

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

/* ============================================================
   左右交替布局（小家电）
   ============================================================ */
.alternate-row {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 40px 0;
}

.alternate-row:nth-child(even) {
  grid-template-columns: 1fr 1.2fr;
}

.alternate-row:nth-child(even) .alternate-row__image {
  order: 1;
}

.alternate-row__image {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--bg-light);
}

.alternate-row__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.alternate-row__content {
  padding: 20px 0;
}

.alternate-row__title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--deep);
  margin-bottom: 10px;
}

.alternate-row__price {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--orange);
  margin-bottom: 12px;
}

.alternate-row__desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 18px;
}

/* ============================================================
   视频区
   ============================================================ */
.video-section {
  position: relative;
  height: 500px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--deep);
  cursor: pointer;
}

.video-section__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.4);
}

.video-section__content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.video-section__title {
  font-size: 2.4rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: -0.03em;
}

.video-section__play {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  color: #fff;
  font-size: 1.5rem;
  transition: all var(--duration-normal) var(--ease-out);
}

.video-section__play:hover {
  background: var(--orange);
  border-color: var(--orange);
  transform: scale(1.1);
}

/* ============================================================
   新闻卡片
   ============================================================ */
.news-highlight {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 20px;
}

.news-card--main {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  transition: all var(--duration-normal) var(--ease-out);
  cursor: pointer;
}

.news-card--main:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.news-card--main__image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-light);
}

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

.news-card--main:hover .news-card--main__image img {
  transform: scale(1.04);
}

.news-card--main__body {
  padding: 20px;
}

.news-card--main__title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--deep);
  line-height: 1.4;
  margin-bottom: 8px;
}

.news-card--main__desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.news-card--side {
  display: flex;
  gap: 14px;
  padding: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-out);
  cursor: pointer;
}

.news-card--side:not(:last-child) {
  margin-bottom: 16px;
}

.news-card--side:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.news-card--side__image {
  width: 120px;
  height: 80px;
  border-radius: var(--radius-xs);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-light);
}

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

.news-card--side__info {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.news-card--side__title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--deep);
  line-height: 1.4;
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card--side__date {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* 新闻列表 */
.news-list-item {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-light);
  transition: color var(--duration-fast);
}

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

.news-list-item__image {
  width: 200px;
  height: 130px;
  border-radius: var(--radius-xs);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-light);
}

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

.news-list-item__info {
  flex: 1;
}

.news-list-item__title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--deep);
  margin-bottom: 8px;
  transition: color var(--duration-fast);
}

.news-list-item__date {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.news-list-item__desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================================
   用户评价卡片
   ============================================================ */
.review-swiper {
  padding: 0 24px 40px;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all var(--duration-normal);
  cursor: pointer;
}

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

.review-card__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.review-card__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--bg-light);
  flex-shrink: 0;
}

.review-card__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.review-card__name {
  font-weight: 600;
  color: var(--deep);
  font-size: 0.9rem;
}

.review-card__product {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.review-card__stars {
  color: #F59E0B;
  font-size: 0.85rem;
  margin-bottom: 8px;
}

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

/* ============================================================
   合作伙伴 Logo 墙
   ============================================================ */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
  align-items: center;
}

.partner-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xs);
  transition: all var(--duration-normal);
  cursor: pointer;
}

.partner-item:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.partner-item img {
  max-height: 40px;
  opacity: 0.6;
  transition: opacity var(--duration-fast);
}

.partner-item:hover img {
  opacity: 1;
}

.partner-item span {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: color var(--duration-fast);
}

.partner-item:hover span {
  color: var(--deep);
}

/* ============================================================
   订阅 CTA
   ============================================================ */
.subscribe-card {
  background: var(--deep);
  border-radius: var(--radius-md);
  padding: 56px 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.subscribe-card__title {
  font-size: 1.6rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.subscribe-card__desc {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
}

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

.subscribe-form input {
  flex: 1;
  padding: 14px 18px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-xs);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--duration-fast);
}

.subscribe-form input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.subscribe-form input:focus {
  border-color: var(--orange);
}

/* ============================================================
   页脚
   ============================================================ */
.footer {
  background: var(--deep);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 60px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px 48px;
}

.footer__brand-desc {
  font-size: 0.88rem;
  line-height: 1.7;
  margin: 16px 0;
}

.footer__social {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.footer__social a {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-xs);
  color: rgba(255, 255, 255, 0.6);
  transition: all var(--duration-fast);
}

.footer__social a:hover {
  color: var(--orange);
  border-color: var(--orange);
  background: rgba(255, 107, 53, 0.1);
}

.footer__col-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.footer__links a {
  display: block;
  padding: 6px 0;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--duration-fast);
}

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

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.88rem;
}

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

.footer__qrcode {
  width: 100px;
  height: 100px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  text-align: center;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.4);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
}

.footer__bottom-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer__bottom-inner a {
  color: rgba(255, 255, 255, 0.5);
}

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

/* ============================================================
   内页 Banner
   ============================================================ */
.inner-banner {
  position: relative;
  height: 300px;
  overflow: hidden;
}

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

.inner-banner__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(26, 26, 46, 0.6), rgba(26, 26, 46, 0.8));
}

.inner-banner__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100%;
  text-align: center;
  padding: 0 24px;
}

.inner-banner__title {
  font-size: 2.4rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.03em;
  margin-bottom: 6px;
}

.inner-banner__subtitle {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.8);
}

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

.breadcrumb {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 14px 24px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

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

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

.breadcrumb i {
  margin: 0 6px;
  font-size: 0.6rem;
}

/* ============================================================
   筛选栏
   ============================================================ */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 12px 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.filter-bar a {
  padding: 7px 18px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 20px;
  white-space: nowrap;
  transition: all var(--duration-fast);
}

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

.filter-bar a.active {
  background: var(--orange);
  color: #fff;
}

/* ============================================================
   产品列表侧边栏布局
   ============================================================ */
.list-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 32px;
}

.list-sidebar {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 20px;
  height: fit-content;
  position: sticky;
  top: calc(var(--header-h) + 20px);
}

.list-sidebar__title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--deep);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-light);
}

.list-sidebar__nav a {
  display: block;
  padding: 10px 12px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  border-radius: var(--radius-xs);
  transition: all var(--duration-fast);
}

.list-sidebar__nav a:hover,
.list-sidebar__nav a.active {
  background: var(--orange-light);
  color: var(--orange);
}

/* ============================================================
   产品详情页
   ============================================================ */
.detail {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.detail__header {
  margin-bottom: 24px;
}

.detail__title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--deep);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.detail__meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.detail__meta-row i {
  margin-right: 4px;
}

/* 产品参数卡片 */
.detail__params {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 32px;
}

.detail__param {
  background: var(--bg-light);
  border-radius: var(--radius-sm);
  padding: 16px;
  text-align: center;
}

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

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

/* 产品详情轮播 */
.detail-gallery {
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 32px;
  background: var(--bg-light);
}

.detail-gallery .swiper-slide {
  aspect-ratio: 16 / 10;
}

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

/* 正文内容 */
.detail__body {
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--text-primary);
}

.detail__body img {
  max-width: 100%;
  border-radius: var(--radius-sm);
  margin: 16px 0;
}

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

/* 上下篇导航 */
.detail__pager {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  margin-top: 32px;
  border-top: 1px solid var(--border-light);
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.detail__pager a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  transition: all var(--duration-fast);
}

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

/* 推荐标题 */
.related-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--deep);
  margin: 40px 0 20px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

/* ============================================================
   新闻详情
   ============================================================ */
.article {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 40px 24px;
}

.article__header {
  text-align: center;
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border-light);
}

.article__title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--deep);
  letter-spacing: -0.03em;
  line-height: 1.3;
  margin-bottom: 16px;
}

.article__meta {
  display: flex;
  justify-content: center;
  gap: 20px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.article__body {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-primary);
}

.article__body img {
  max-width: 100%;
  border-radius: var(--radius-sm);
  margin: 24px auto;
  display: block;
}

.article__body p {
  margin-bottom: 20px;
}

/* ============================================================
   关于我们
   ============================================================ */
.about-section {
  padding: 60px 0;
}

.about-section:nth-child(even) {
  background: var(--bg-light);
}

.about-section__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-section__image {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--bg-light);
}

.about-section__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-section__content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--deep);
  margin-bottom: 16px;
}

.about-section__content p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}

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

.contact-info__item {
  display: flex;
  gap: 14px;
  margin-bottom: 24px;
}

.contact-info__icon {
  width: 44px;
  height: 44px;
  background: var(--orange-light);
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--orange);
  flex-shrink: 0;
}

.contact-info__label {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 2px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.contact-info__value {
  font-size: 0.95rem;
  color: var(--deep);
  font-weight: 500;
}

.contact-form-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 32px;
}

/* 表单控件 */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--deep);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 12px 14px;
  font-size: 0.92rem;
  border: 1px solid var(--border-input);
  border-radius: var(--radius-xs);
  background: var(--bg-white);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--duration-fast);
}

.form-control:focus {
  border-color: var(--orange);
  box-shadow: 0 0 0 3px var(--orange-dim);
}

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

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

.required {
  color: var(--red);
}

/* ============================================================
   搜索
   ============================================================ */
.search-box {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

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

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

.search-input-wrap i {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

.search-input-wrap input {
  width: 100%;
  padding: 14px 16px 14px 44px;
  border: 1px solid var(--border-input);
  border-radius: var(--radius-xs);
  background: var(--bg-white);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--duration-fast);
}

.search-input-wrap input:focus {
  border-color: var(--orange);
}

.search-result-item {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-light);
  cursor: pointer;
  transition: background var(--duration-fast);
}

.search-result-item:hover {
  background: var(--bg-light);
}

.search-result-item__thumb {
  width: 100px;
  height: 80px;
  border-radius: var(--radius-xs);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-light);
}

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

.search-result-item__info {
  flex: 1;
}

.search-result-item__title {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--deep);
  margin-bottom: 4px;
}

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

.search-result-item__desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============================================================
   留言板
   ============================================================ */
.message-list {
  margin-bottom: 48px;
}

.message-item {
  padding: 20px;
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.message-item__header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
}

.message-item__name {
  font-weight: 600;
  color: var(--deep);
  font-size: 0.92rem;
}

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

.message-item__content {
  font-size: 0.9rem;
  color: var(--text-primary);
  line-height: 1.6;
}

.message-item__reply {
  margin-top: 12px;
  padding: 12px 16px;
  background: var(--orange-light);
  border-radius: var(--radius-xs);
  font-size: 0.88rem;
  color: var(--orange);
  border-left: 3px solid var(--orange);
}

/* ============================================================
   分页
   ============================================================ */
.pagination {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: 40px;
  padding: 20px 0;
}

.pagination a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 10px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  transition: all var(--duration-fast);
}

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

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

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

.empty-state i {
  font-size: 3rem;
  margin-bottom: 16px;
  display: block;
  opacity: 0.3;
}

/* ============================================================
   返回顶部
   ============================================================ */
.back-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  z-index: 80;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--duration-normal) var(--ease-out);
  cursor: pointer;
}

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

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

/* ============================================================
   在线客服悬浮
   ============================================================ */
.float-service {
  position: fixed;
  right: 30px;
  bottom: 90px;
  z-index: 80;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.float-service__btn {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-xs);
  background: var(--bg-white);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
  cursor: pointer;
  transition: all var(--duration-fast);
}

.float-service__btn:hover {
  color: var(--orange);
  border-color: var(--orange);
}

.float-service__btn--phone {
  background: var(--orange);
  border-color: var(--orange);
  color: #fff;
}

.float-service__btn--phone:hover {
  background: var(--orange-hover);
}

/* ============================================================
   移动端底部快捷栏
   ============================================================ */
.mobile-footer-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-white);
  border-top: 1px solid var(--border);
  z-index: 90;
  padding: 8px 0 env(safe-area-inset-bottom, 8px);
}

.mobile-footer-nav a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  font-size: 0.65rem;
  color: var(--text-muted);
  padding: 4px 0;
}

.mobile-footer-nav a i {
  font-size: 1.15rem;
}

.mobile-footer-nav a.active {
  color: var(--orange);
}

/* ============================================================
   Gallery item（作品展示）
   ============================================================ */
.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 1 / 1;
  background: var(--bg-light);
  cursor: pointer;
}

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

.gallery-item:hover img {
  transform: scale(1.06);
}

.gallery-item__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.6), transparent);
  display: flex;
  align-items: flex-end;
  padding: 16px;
  opacity: 0;
  transition: opacity var(--duration-normal);
}

.gallery-item:hover .gallery-item__overlay {
  opacity: 1;
}

.gallery-item__title {
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
}

/* ============================================================
   友情链接
   ============================================================ */
.friend-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  padding: 16px 0;
}

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

.friend-links a {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

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

/* ============================================================
   响应式 — 平板 (≤1024px)
   ============================================================ */
@media (max-width: 1023px) {
  :root {
    --section-py: 64px;
    --section-py-sm: 40px;
  }

  .header__nav {
    display: none;
  }

  .header__actions .header__cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero {
    height: 480px;
  }

  .hero__title {
    font-size: 2.4rem;
  }

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

  .features {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

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

  .alternate-row,
  .alternate-row:nth-child(even) {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 24px 0;
  }

  .alternate-row:nth-child(even) .alternate-row__image {
    order: 0;
  }

  .news-highlight {
    grid-template-columns: 1fr;
  }

  .subscribe-card {
    grid-template-columns: 1fr;
    padding: 40px 28px;
  }

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

  .list-sidebar {
    position: static;
  }

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

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

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

  .mobile-footer-nav {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
  }

  body {
    padding-bottom: 70px;
  }

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

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

/* ============================================================
   响应式 — 手机 (≤768px)
   ============================================================ */
@media (max-width: 767px) {
  :root {
    --section-py: 48px;
    --section-py-sm: 32px;
    --header-h: 60px;
  }

  .hero {
    height: 420px;
  }

  .hero__title {
    font-size: 1.8rem;
  }

  .hero__subtitle {
    font-size: 1rem;
  }

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

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

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

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

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

  .features {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

  .video-section {
    height: 350px;
  }

  .video-section__title {
    font-size: 1.5rem;
  }

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

  .subscribe-card {
    padding: 28px 20px;
    gap: 20px;
  }

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

  .inner-banner {
    height: 200px;
  }

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

  .article__title {
    font-size: 1.4rem;
  }

  .detail__title {
    font-size: 1.3rem;
  }

  .detail__params {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }

  .card__body {
    padding: 12px;
  }

  .card__title {
    font-size: 0.88rem;
  }

  .float-service {
    right: 16px;
    bottom: 80px;
  }

  .back-top {
    right: 16px;
    bottom: 72px;
  }

  .product-swiper .swiper-slide {
    width: 220px;
  }

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

  .search-result-item__thumb {
    width: 100%;
    height: 150px;
  }

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

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

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

  .news-card--side__image {
    width: 100%;
    height: 120px;
  }
}

/* ============================================================
   响应式 — 小手机 (≤480px)
   ============================================================ */
@media (max-width: 479px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .hero {
    height: 360px;
  }

  .hero__title {
    font-size: 1.5rem;
  }

  .hero__actions {
    flex-direction: column;
  }

  .header__logo-name {
    font-size: 0.9rem;
  }

  .container {
    padding: 0 16px;
  }

  .btn--lg {
    padding: 12px 24px;
    font-size: 0.9rem;
  }
}

/* ============================================================
   AOS 动画覆盖
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  [data-aos] {
    transition: none !important;
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ============================================================
   工具类
   ============================================================ */
.text-center { text-align: center; }
.text-orange { color: var(--orange); }
.mt-0 { margin-top: 0; }
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.mb-0 { margin-bottom: 0; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }
.gap-12 { gap: 12px; }
.gap-20 { gap: 20px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.hidden { display: none !important; }

/* zzm-reviewed-demo-layout-227; original ZIP unchanged */
.float-service { position: static; flex-direction: row; justify-content: center; margin: 24px auto; padding: 0 16px; }