/* ==========================================================================
   企业官网 - 主样式
   工业风配色 · 中英双语 · 响应式
   ========================================================================== */

/* ---------- CSS 变量 / 主题 ---------- */
:root {
  /* 主色 - 深蓝（专业、可信、工业） */
  --color-primary: #0a2540;
  --color-primary-light: #1a3a5c;
  --color-primary-dark: #061a2e;

  /* 强调色 - 橙（CTA、行动） */
  --color-accent: #ff6b35;
  --color-accent-light: #ff8a5b;
  --color-accent-dark: #e55a2b;

  /* 中性色 */
  --color-bg: #ffffff;
  --color-bg-alt: #f7fafc;
  --color-bg-dark: #0a2540;
  --color-border: #e2e8f0;
  --color-border-light: #edf2f7;

  /* 文字 */
  --color-text: #1a202c;
  --color-text-secondary: #4a5568;
  --color-text-muted: #718096;
  --color-text-light: #ffffff;

  /* 状态色 */
  --color-success: #38a169;
  --color-warning: #ed8936;
  --color-error: #e53e3e;

  /* 阴影 */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05), 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.08), 0 4px 10px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12);

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* 间距 */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* 字体 */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial,
    sans-serif;
  --font-display: "Segoe UI", -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Microsoft YaHei", sans-serif;

  /* 容器 */
  --container-max: 1280px;
  --container-padding: 1.5rem;

  /* 过渡 */
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Header 高度（用于锚点滚动偏移） */
  --header-height: 80px;
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-base);
}

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

ul,
ol {
  list-style: none;
}

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

input,
textarea,
select {
  font: inherit;
}

/* ---------- 排版 ---------- */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2rem, 4vw, 3rem);
}
h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}
h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
}
h4 {
  font-size: 1.125rem;
}

p {
  color: var(--color-text-secondary);
}

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

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

.section {
  padding: var(--space-3xl) 0;
}

.section-sm {
  padding: var(--space-2xl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-title h2 {
  margin-bottom: var(--space-sm);
}

.section-title p {
  font-size: 1.125rem;
  max-width: 640px;
  margin: 0 auto;
}

.eyebrow {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-base);
  border: 2px solid transparent;
  white-space: nowrap;
  user-select: none;
}

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

.btn-primary:hover {
  background: var(--color-accent-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background: var(--color-primary-light);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

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

.btn-light {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(8px);
}

.btn-light:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.btn-lg {
  padding: 1.125rem 2.25rem;
  font-size: 1.0625rem;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-arrow::after {
  content: "→";
  transition: transform var(--transition-base);
}

.btn-arrow:hover::after {
  transform: translateX(4px);
}

/* ---------- 顶部公告栏 ---------- */
.topbar {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.8125rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.topbar-left {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  flex-wrap: wrap;
}

.topbar-left a {
  color: rgba(255, 255, 255, 0.85);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

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

.topbar-right {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.lang-switch {
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
  padding-left: var(--space-md);
  border-left: 1px solid rgba(255, 255, 255, 0.15);
}

.lang-btn {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-base);
}

.lang-btn:hover {
  color: #fff;
}

.lang-btn.active {
  color: var(--color-accent-light);
  font-weight: 600;
}

/* ---------- Header / 主导航 ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base);
}

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem var(--container-padding);
  max-width: var(--container-max);
  margin: 0 auto;
  gap: var(--space-lg);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-primary);
  flex-shrink: 0;
}

.logo img {
  width: 40px;
  height: 40px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-text strong {
  font-size: 1.0625rem;
  letter-spacing: -0.02em;
}

.logo-text small {
  font-size: 0.6875rem;
  font-weight: 400;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

.nav {
  display: flex;
  gap: 0.25rem;
  align-items: center;
  flex: 1;
  justify-content: center;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.625rem 0.875rem;
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.nav-link:hover {
  color: var(--color-accent);
  background: var(--color-bg-alt);
}

.nav-link.active {
  color: var(--color-accent);
}

.nav-link svg {
  width: 12px;
  height: 12px;
  transition: transform var(--transition-base);
}

.nav-item:hover .nav-link svg {
  transform: rotate(180deg);
}

/* Dropdown */
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 240px;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: 50;
  border: 1px solid var(--color-border-light);
}

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

.nav-dropdown a {
  display: block;
  padding: 0.5rem 0.75rem;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
}

.nav-dropdown a:hover {
  background: var(--color-bg-alt);
  color: var(--color-accent);
  padding-left: 1rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.icon-btn {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--color-text);
  transition: all var(--transition-base);
}

.icon-btn:hover {
  background: var(--color-bg-alt);
  color: var(--color-accent);
}

.icon-btn svg {
  width: 20px;
  height: 20px;
}

.mobile-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.mobile-toggle svg {
  width: 24px;
  height: 24px;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  padding: var(--space-3xl) 0 var(--space-2xl);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(255, 107, 53, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255, 138, 91, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  opacity: 0.5;
}

.hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 880px;
  margin: 0 auto;
}

.hero h1 {
  color: #fff;
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  margin-bottom: var(--space-md);
  line-height: 1.15;
}

.hero h1 span {
  color: var(--color-accent-light);
}

.hero-subtitle {
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-xl);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* Hero Search */
.hero-search {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 0.5rem;
  display: flex;
  gap: 0.5rem;
  max-width: 720px;
  margin: 0 auto var(--space-md);
  box-shadow: var(--shadow-xl);
}

.hero-search input {
  flex: 1;
  border: none;
  outline: none;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  background: transparent;
  color: var(--color-text);
}

.hero-search input::placeholder {
  color: var(--color-text-muted);
}

.hero-search button {
  padding: 0.875rem 1.5rem;
  border-radius: var(--radius-md);
  background: var(--color-accent);
  color: #fff;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-search button:hover {
  background: var(--color-accent-dark);
}

.hero-search-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.hero-tab {
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.7);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  cursor: pointer;
  transition: all var(--transition-base);
}

.hero-tab.active,
.hero-tab:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
}

.hero-help {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
}

.hero-help a {
  color: var(--color-accent-light);
  text-decoration: underline;
}

.hero-cta {
  margin-top: var(--space-xl);
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- 卡片网格 ---------- */
.grid {
  display: grid;
  gap: var(--space-lg);
}

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

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

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

.grid-6 {
  grid-template-columns: repeat(6, 1fr);
}

/* ---------- 卡片 ---------- */
.card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
}

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

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
}

.card-icon svg {
  width: 28px;
  height: 28px;
}

.card-icon.accent {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
}

.card-title {
  font-size: 1.125rem;
  margin-bottom: var(--space-xs);
}

.card-text {
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* 分类入口卡（大图） */
.cat-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-alt);
  aspect-ratio: 4 / 3;
  cursor: pointer;
  transition: transform var(--transition-base);
}

.cat-card:hover {
  transform: translateY(-4px);
}

.cat-card-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cat-card-bg svg {
  width: 60%;
  height: 60%;
  color: rgba(255, 255, 255, 0.15);
}

.cat-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(0, 0, 0, 0.7) 100%);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  color: #fff;
}

.cat-card h3 {
  color: #fff;
  margin-bottom: var(--space-xs);
}

.cat-card p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.875rem;
}

.cat-card-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: var(--space-sm);
  font-weight: 600;
  color: var(--color-accent-light);
  font-size: 0.875rem;
}

/* 服务特性 */
.feature-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
}

.feature-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-md);
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon svg {
  width: 32px;
  height: 32px;
}

.feature-card h3 {
  font-size: 1.125rem;
  margin-bottom: var(--space-xs);
}

/* ---------- 品牌墙 ---------- */
.brands {
  background: var(--color-bg-alt);
  padding: var(--space-2xl) 0;
}

.brands-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-md);
  align-items: center;
}

.brand-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  background: #fff;
  border-radius: var(--radius-md);
  height: 80px;
  transition: all var(--transition-base);
  filter: grayscale(1) opacity(0.6);
}

.brand-logo:hover {
  filter: grayscale(0) opacity(1);
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

.brand-logo svg,
.brand-logo img {
  max-width: 100%;
  max-height: 48px;
}

/* ---------- 产品目录 ---------- */
.catalog {
  padding: var(--space-3xl) 0;
  background: #fff;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.catalog-col h4 {
  margin-bottom: var(--space-md);
  color: var(--color-primary);
  padding-bottom: var(--space-xs);
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.catalog-col ul li {
  margin-bottom: 0.5rem;
}

.catalog-col a {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.catalog-col a::before {
  content: "›";
  color: var(--color-accent);
  font-weight: bold;
}

.catalog-col a:hover {
  color: var(--color-accent);
  padding-left: 4px;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--space-3xl) 0 var(--space-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: var(--space-md);
  font-weight: 600;
}

.footer-col ul li {
  margin-bottom: 0.625rem;
}

.footer-col a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  transition: color var(--transition-base);
}

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

.footer-brand .logo {
  color: #fff;
  margin-bottom: var(--space-md);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9375rem;
  margin-bottom: var(--space-md);
  max-width: 360px;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.75);
}

.footer-contact strong {
  color: #fff;
  display: block;
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.social-links {
  display: flex;
  gap: 0.75rem;
  margin-top: var(--space-md);
}

.social-links a {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: all var(--transition-base);
}

.social-links a:hover {
  background: var(--color-accent);
  transform: translateY(-2px);
}

.social-links svg {
  width: 18px;
  height: 18px;
}

.footer-bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

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

/* ---------- 统计数据条 ---------- */
.stats-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  padding: var(--space-xl) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-md);
  align-items: center;
}

.stat-item {
  text-align: center;
  padding: var(--space-md);
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item:last-child {
  border-right: none;
}

.stat-num {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  color: var(--color-accent-light);
  line-height: 1;
  margin-bottom: 0.5rem;
  font-family: var(--font-display);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.75);
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat-item {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
}

/* ---------- 通用页面元素 ---------- */
.page-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  padding: var(--space-2xl) 0;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 80% 50%, rgba(255, 107, 53, 0.15) 0%, transparent 50%);
}

.page-header-inner {
  position: relative;
  z-index: 1;
}

.page-header h1 {
  color: #fff;
  margin-bottom: var(--space-sm);
}

.page-header p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.125rem;
  max-width: 640px;
}

.breadcrumb {
  display: flex;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-sm);
}

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

.breadcrumb-sep {
  color: rgba(255, 255, 255, 0.4);
}

/* ---------- 关于我们：里程碑 ---------- */
.timeline {
  position: relative;
  padding-left: var(--space-xl);
}

.timeline::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-xl);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--space-xl) + 6px);
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px var(--color-accent);
}

.timeline-year {
  font-weight: 700;
  color: var(--color-accent);
  font-size: 1.125rem;
  margin-bottom: 0.25rem;
}

.timeline-content h4 {
  margin-bottom: 0.5rem;
}

/* ---------- 产品卡 ---------- */
.product-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
}

.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.product-image {
  aspect-ratio: 4 / 3;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  position: relative;
  overflow: hidden;
}

.product-image::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-border-light) 100%);
}

.product-image svg {
  position: relative;
  z-index: 1;
  width: 50%;
  height: 50%;
}

.product-info {
  padding: var(--space-md);
}

.product-info h4 {
  margin-bottom: 0.5rem;
}

.product-info p {
  font-size: 0.875rem;
  margin-bottom: var(--space-sm);
}

.product-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* ---------- 筛选标签 ---------- */
.filter-tabs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
  justify-content: center;
}

.filter-tab {
  padding: 0.5rem 1.125rem;
  border-radius: var(--radius-full);
  background: var(--color-bg-alt);
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
}

.filter-tab:hover {
  background: var(--color-border-light);
}

.filter-tab.active {
  background: var(--color-primary);
  color: #fff;
}

/* ---------- 解决方案/应用领域 ---------- */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.solution-card {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
}

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

.solution-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.solution-icon svg {
  width: 28px;
  height: 28px;
}

.solution-content h3 {
  margin-bottom: 0.5rem;
  font-size: 1.125rem;
}

.solution-content p {
  font-size: 0.9375rem;
}

/* ---------- 联系页 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-2xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.contact-info-item {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
}

.contact-info-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-info-icon svg {
  width: 24px;
  height: 24px;
}

.contact-info-content h4 {
  margin-bottom: 0.25rem;
  font-size: 1rem;
}

.contact-info-content p,
.contact-info-content a {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
}

.contact-info-content a:hover {
  color: var(--color-accent);
}

/* ---------- 表单 ---------- */
.form {
  background: #fff;
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--color-text);
}

.form-group label .required {
  color: var(--color-error);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #fff;
  font-size: 0.9375rem;
  color: var(--color-text);
  transition: all var(--transition-base);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

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

.form-message {
  padding: 1rem;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  display: none;
}

.form-message.success {
  background: #f0fff4;
  color: var(--color-success);
  border: 1px solid #c6f6d5;
  display: block;
}

.form-message.error {
  background: #fff5f5;
  color: var(--color-error);
  border: 1px solid #fed7d7;
  display: block;
}

/* ---------- 地图占位 ---------- */
.map-placeholder {
  width: 100%;
  height: 360px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.5rem;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border-light);
  overflow: hidden;
  position: relative;
}

.map-placeholder svg {
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
}

.map-placeholder-text {
  position: relative;
  background: rgba(255, 255, 255, 0.9);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  text-align: center;
  z-index: 1;
}

/* ---------- 产品搜索框（产品页专用） ---------- */
.product-search-box {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-md);
  margin-bottom: var(--space-lg);
  max-width: 880px;
  margin-left: auto;
  margin-right: auto;
}

.search-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: var(--space-sm);
  flex-wrap: wrap;
}

.search-tab {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  background: var(--color-bg-alt);
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
}

.search-tab:hover {
  background: var(--color-border-light);
}

.search-tab.active {
  background: var(--color-primary);
  color: #fff;
}

.search-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 1rem;
  color: var(--color-text-muted);
  pointer-events: none;
}

.search-input-wrap input {
  width: 100%;
  padding: 0.875rem 3rem 0.875rem 3rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #fff;
  font-size: 1rem;
  transition: all var(--transition-base);
}

.search-input-wrap input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.search-clear {
  position: absolute;
  right: 0.75rem;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-border-light);
  color: var(--color-text-secondary);
  font-size: 1.25rem;
  line-height: 1;
  display: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.search-clear.visible {
  display: flex;
}

.search-clear:hover {
  background: var(--color-text-muted);
  color: #fff;
}

.search-meta {
  margin-top: var(--space-sm);
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  flex-wrap: wrap;
  gap: 0.5rem;
}

.search-meta strong {
  color: var(--color-accent);
  font-size: 1rem;
  margin-right: 0.25rem;
}

.search-tip {
  font-size: 0.8125rem;
}

.cat-count {
  display: inline-block;
  background: var(--color-border-light);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  padding: 0.05rem 0.5rem;
  border-radius: var(--radius-full);
  margin-left: 0.25rem;
  font-weight: 500;
}

.filter-tab.active .cat-count {
  background: rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.9);
}

/* ---------- 产品卡片（产品页专用） ---------- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.product-card-real {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  overflow: hidden;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.product-card-real:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.product-img-box {
  width: 100%;
  aspect-ratio: 16 / 10;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.9);
  position: relative;
  overflow: hidden;
}

.product-img-box svg {
  width: 30%;
  height: 60%;
}

.product-img-box .product-photo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
  background: #fff;
  box-sizing: border-box;
  transition: transform .3s ease;
}

.product-card-real:hover .product-photo {
  transform: scale(1.05);
}

.product-img-box.img-fallback {
  background-blend-mode: normal;
}

.product-img-box.cat-fuel {
  background: linear-gradient(135deg, #0a2540 0%, #1a3a5c 100%);
}
.product-img-box.cat-oil {
  background: linear-gradient(135deg, #ff6b35 0%, #ff8a5b 100%);
}
.product-img-box.cat-air {
  background: linear-gradient(135deg, #2d3748 0%, #4a5568 100%);
}
.product-img-box.cat-other {
  background: linear-gradient(135deg, #1a365d 0%, #2c5282 100%);
}

.product-body {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  flex: 1;
}

.product-category-tag {
  display: inline-block;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
  align-self: flex-start;
}

.product-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-primary);
  font-family: "SF Mono", Consolas, Monaco, monospace;
  letter-spacing: -0.02em;
}

.product-spec {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  background: var(--color-bg-alt);
  padding: 0.625rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
}

.spec-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
}

.spec-row span {
  color: var(--color-text-muted);
}

.spec-row strong {
  color: var(--color-text);
  font-weight: 500;
  text-align: right;
  font-family: "SF Mono", Consolas, Monaco, monospace;
  font-size: 0.8125rem;
}

.spec-row.vertical {
  flex-direction: column;
  align-items: flex-start;
}

.spec-row.vertical strong {
  text-align: left;
}

.product-vehicle {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.product-vehicle strong {
  color: var(--color-text-muted);
  font-weight: 500;
}

.product-oem {
  border-top: 1px dashed var(--color-border);
  padding-top: var(--space-sm);
}

.oem-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: 0.375rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.oem-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.oem-chip {
  display: inline-block;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border-light);
  color: var(--color-text-secondary);
  font-size: 0.6875rem;
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-sm);
  font-family: "SF Mono", Consolas, Monaco, monospace;
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.oem-chip.oem-more {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.product-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: auto;
}

.product-actions .btn {
  flex: 1;
}

/* ---------- 加载/空状态 ---------- */
.loading-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-3xl) 0;
  color: var(--color-text-muted);
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--color-border-light);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  margin: 0 auto var(--space-md);
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-3xl) 0;
  color: var(--color-text-muted);
}

.empty-state svg {
  margin-bottom: var(--space-md);
  opacity: 0.4;
}

.empty-state h3 {
  color: var(--color-text-secondary);
  margin-bottom: 0.5rem;
}

.empty-state p {
  margin-bottom: var(--space-md);
}

/* ---------- 分页 ---------- */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-2xl);
}

.page-btn {
  padding: 0.5rem 1rem;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
}

.page-btn:hover:not(:disabled) {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.page-info {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
}

.page-info strong {
  color: var(--color-accent);
}

/* ---------- OEM 交叉检索数据 ---------- */
.crossref-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-xl);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.crossref-stats > div {
  text-align: center;
  background: rgba(255, 255, 255, 0.05);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.crossref-stats strong {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-accent-light);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.crossref-stats span {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
}

/* ---------- 产品详情弹窗 ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 37, 64, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--space-md);
  animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-box {
  background: #fff;
  border-radius: var(--radius-xl);
  max-width: 880px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow-xl);
  animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  color: var(--color-text);
  font-size: 1.5rem;
  line-height: 1;
  z-index: 1;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.modal-close:hover {
  background: var(--color-accent);
  color: #fff;
}

.modal-body {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 500px;
}

.modal-image {
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.9);
}

.modal-image svg {
  width: 40%;
  height: 50%;
}

.modal-info {
  padding: var(--space-xl);
}

.modal-info h2 {
  font-size: 1.75rem;
  font-family: "SF Mono", Consolas, Monaco, monospace;
  margin-bottom: 0.25rem;
}

.modal-product-name {
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.modal-specs {
  background: var(--color-bg-alt);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
}

.modal-specs .spec-row {
  padding: 0.375rem 0;
  border-bottom: 1px solid var(--color-border-light);
}

.modal-specs .spec-row:last-child {
  border-bottom: none;
}

.modal-section {
  margin-bottom: var(--space-lg);
}

.modal-section h4 {
  margin-bottom: var(--space-sm);
  font-size: 1rem;
}

.oem-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.375rem;
  padding-left: 0;
}

.oem-list li {
  background: var(--color-bg-alt);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-family: "SF Mono", Consolas, Monaco, monospace;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  list-style: none;
}

.oem-list li.muted {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--color-text-muted);
  font-style: italic;
}

.mfg-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.mfg-tag {
  background: var(--color-primary);
  color: #fff;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  font-weight: 500;
}

.modal-actions {
  display: flex;
  gap: var(--space-sm);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border-light);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .crossref-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .products-grid {
    grid-template-columns: 1fr;
  }
  .modal-body {
    grid-template-columns: 1fr;
  }
  .modal-image {
    aspect-ratio: 16/9;
  }
  .modal-info {
    padding: var(--space-md);
  }
  .oem-list {
    grid-template-columns: 1fr;
  }
  .search-meta {
    flex-direction: column;
  }
}

/* ---------- 交叉检索块 ---------- */
.cross-ref {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cross-ref::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 30% 50%, rgba(255, 107, 53, 0.2) 0%, transparent 60%);
}

.cross-ref-inner {
  position: relative;
  z-index: 1;
}

.cross-ref h2 {
  color: #fff;
  margin-bottom: var(--space-md);
}

.cross-ref p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-lg);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- 动画 ---------- */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-up {
  animation: fadeUp 0.6s ease-out backwards;
}

.fade-up:nth-child(2) { animation-delay: 0.1s; }
.fade-up:nth-child(3) { animation-delay: 0.2s; }
.fade-up:nth-child(4) { animation-delay: 0.3s; }
.fade-up:nth-child(5) { animation-delay: 0.4s; }
.fade-up:nth-child(6) { animation-delay: 0.5s; }

/* ---------- 工具类 ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.bg-alt { background: var(--color-bg-alt); }
.bg-dark { background: var(--color-primary-dark); color: #fff; }
.bg-dark h1, .bg-dark h2, .bg-dark h3 { color: #fff; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-6 {
    grid-template-columns: repeat(4, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .solutions-grid {
    grid-template-columns: 1fr;
  }
  .brands-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .catalog-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }
}

@media (max-width: 768px) {
  :root {
    --space-3xl: 4rem;
    --space-2xl: 3rem;
  }

  .topbar {
    font-size: 0.75rem;
  }

  .topbar-left,
  .topbar-right {
    gap: 0.75rem;
  }

  .nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-md);
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
  }

  .nav.open {
    display: flex;
  }

  .nav-item {
    width: 100%;
    border-bottom: 1px solid var(--color-border-light);
  }

  .nav-link {
    width: 100%;
    padding: 1rem 0.5rem;
    justify-content: space-between;
  }

  .nav-dropdown {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    background: var(--color-bg-alt);
    margin-top: 0.5rem;
    opacity: 1;
    visibility: visible;
    width: 100%;
    border-radius: var(--radius-md);
  }

  .mobile-toggle {
    display: inline-flex;
  }

  .header-actions .btn {
    display: none;
  }

  .header-actions .icon-btn:not(:last-child) {
    display: none;
  }

  .hero {
    padding: var(--space-2xl) 0 var(--space-xl);
  }

  .hero-search {
    flex-direction: column;
    padding: 1rem;
  }

  .hero-search button {
    width: 100%;
    justify-content: center;
  }

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

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

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

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

  .timeline {
    padding-left: var(--space-md);
  }

  .timeline::before {
    left: 6px;
  }

  .timeline-item::before {
    left: calc(-1 * var(--space-md));
  }
}

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

  .hero-cta {
    flex-direction: column;
  }

  .hero-cta .btn {
    width: 100%;
  }
}

/* ---------- 打印 ---------- */
@media print {
  .header,
  .footer,
  .topbar,
  .no-print {
    display: none !important;
  }
}

/* ==========================================================================
   OEM 交叉检索页面 (cross-reference.html)
   ========================================================================== */

.xrf-hero {
  background: linear-gradient(135deg, #0a2540 0%, #1a3a5c 100%);
  color: #fff;
  padding: 60px 0 80px;
  margin-top: 0;
}
.xrf-hero .breadcrumb { color: rgba(255,255,255,0.7); margin-bottom: 16px; }
.xrf-hero .breadcrumb a { color: rgba(255,255,255,0.85); }
.xrf-hero .breadcrumb-sep { color: rgba(255,255,255,0.4); margin: 0 6px; }
.xrf-hero h1 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  color: #fff;
  margin: 0 0 12px;
  letter-spacing: -0.01em;
}
.xrf-hero-sub {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.85);
  margin: 0 0 32px;
  max-width: 720px;
}

.xrf-search-form { max-width: 760px; }
.xrf-search-input-wrap {
  display: flex;
  align-items: center;
  background: #fff;
  border-radius: 12px;
  padding: 6px 6px 6px 16px;
  box-shadow: 0 8px 28px rgba(0,0,0,0.18);
  gap: 8px;
  position: relative;
}
.xrf-search-icon { color: var(--color-text-secondary); flex-shrink: 0; }
.xrf-search-input-wrap input {
  flex: 1;
  border: 0;
  outline: none;
  background: transparent;
  font-size: 1rem;
  padding: 12px 4px;
  color: var(--color-text);
  min-width: 0;
}
.xrf-search-input-wrap input::placeholder { color: #94a3b8; }
.xrf-search-clear {
  background: transparent;
  border: 0;
  font-size: 1.4rem;
  line-height: 1;
  color: #94a3b8;
  cursor: pointer;
  padding: 4px 8px;
  display: none;
}
.xrf-search-clear.visible { display: inline-block; }
.xrf-search-clear:hover { color: var(--color-text); }
.xrf-search-submit {
  padding: 10px 24px;
  font-weight: 600;
  white-space: nowrap;
}

.xrf-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
  max-width: 720px;
}
.xrf-stats > div {
  display: flex;
  flex-direction: column;
}
.xrf-stats strong {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -0.02em;
}
.xrf-stats span {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.75);
  margin-top: 2px;
}

@media (max-width: 640px) {
  .xrf-stats { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .xrf-stats strong { font-size: 1.4rem; }
}

/* ---- 结果头 ---- */
.xrf-result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}
.xrf-result-count {
  font-size: 1rem;
  color: var(--color-text);
}
.xrf-result-count #xrfResultCount {
  font-weight: 700;
  color: var(--color-accent);
  font-size: 1.2rem;
}
.xrf-query-echo {
  margin-left: 12px;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}
.xrf-query-echo mark, .xrf-table mark {
  background: #fff3cd;
  color: #b45309;
  padding: 0 2px;
  border-radius: 2px;
}
.xrf-page-size {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}
.xrf-page-size select {
  padding: 6px 10px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: #fff;
  font-size: 0.9rem;
  cursor: pointer;
}

/* ---- 表格 ---- */
.xrf-table-wrap {
  background: #fff;
  border-radius: 12px;
  border: 1px solid var(--color-border-light);
  overflow-x: auto;
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
}
.xrf-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  min-width: 720px;
}
.xrf-table thead {
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  border-bottom: 2px solid var(--color-border-light);
}
.xrf-table th {
  text-align: left;
  padding: 14px 16px;
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.xrf-table td {
  padding: 14px 16px;
  border-bottom: 1px solid #f1f5f9;
  vertical-align: middle;
}
.xrf-table tbody tr {
  transition: background-color .15s ease;
}
.xrf-table tbody tr:hover {
  background-color: #f8fafc;
}
.xrf-table tbody tr:last-child td {
  border-bottom: 0;
}
.col-no { width: 56px; color: var(--color-text-secondary); font-variant-numeric: tabular-nums; }
.col-oem { font-family: 'Consolas', 'Monaco', monospace; font-size: 0.95rem; min-width: 180px; }
.col-brand { min-width: 100px; }
.col-persoly { min-width: 200px; }
.col-type { width: 110px; }
.col-action { width: 160px; white-space: nowrap; }

.xrf-product-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text);
  text-decoration: none;
}
.xrf-product-link:hover .xrf-persoly-no {
  color: var(--color-accent);
}
.xrf-thumb {
  width: 40px;
  height: 40px;
  border-radius: 6px;
  background: #fff;
  border: 1px solid var(--color-border-light);
  object-fit: contain;
  padding: 3px;
  flex-shrink: 0;
}
.xrf-thumb-fallback {
  width: 40px;
  height: 40px;
  border-radius: 6px;
  background: linear-gradient(135deg, #ff6b35 0%, #ff8a5b 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  flex-shrink: 0;
}
.xrf-persoly-no {
  font-weight: 700;
  font-family: 'Consolas', 'Monaco', monospace;
  font-size: 0.95rem;
  color: var(--color-text);
  transition: color .15s;
}

.xrf-type-chip {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.78rem;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
}
.xrf-type-chip.cat-fuel { background: linear-gradient(135deg, #0a2540 0%, #1a3a5c 100%); }
.xrf-type-chip.cat-oil  { background: linear-gradient(135deg, #ff6b35 0%, #ff8a5b 100%); }
.xrf-type-chip.cat-air  { background: linear-gradient(135deg, #2d3748 0%, #4a5568 100%); }
.xrf-type-chip.cat-other { background: linear-gradient(135deg, #1a365d 0%, #2c5282 100%); }

.xrf-btn-detail, .xrf-btn-quote {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  margin-right: 4px;
  transition: all .15s ease;
}
.xrf-btn-detail {
  background: #f1f5f9;
  color: var(--color-text);
  border: 1px solid var(--color-border-light);
}
.xrf-btn-detail:hover {
  background: #e2e8f0;
  border-color: var(--color-text-secondary);
}
.xrf-btn-quote {
  background: var(--color-accent);
  color: #fff;
}
.xrf-btn-quote:hover {
  background: #e55a2b;
}

/* ---- 空状态 ---- */
.xrf-empty {
  background: #fff;
  border-radius: 12px;
  border: 1px solid var(--color-border-light);
  padding: 60px 20px;
  text-align: center;
  color: var(--color-text-secondary);
}
.xrf-empty svg { color: #cbd5e1; margin-bottom: 16px; }
.xrf-empty h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 8px;
}
.xrf-empty p { margin: 0; }
.xrf-empty code {
  background: #f1f5f9;
  color: var(--color-text);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.9em;
  margin: 0 2px;
}
.xrf-empty a { color: var(--color-accent); }

/* ---- 分页 ---- */
.xrf-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.xrf-page-numbers {
  display: flex;
  gap: 4px;
}
.xrf-pagination .page-btn {
  background: #fff;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all .15s ease;
}
.xrf-pagination .page-btn:hover:not(:disabled) {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.xrf-pagination .page-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.xrf-pagination .page-num {
  background: #fff;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.9rem;
  cursor: pointer;
  min-width: 36px;
  transition: all .15s ease;
}
.xrf-pagination .page-num:hover {
  background: #f1f5f9;
}
.xrf-pagination .page-num.active {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.xrf-pagination .page-ellipsis {
  padding: 8px 4px;
  color: var(--color-text-secondary);
  user-select: none;
}

/* ---- 帮助卡片 ---- */
.xrf-help-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 768px) {
  .xrf-help-grid { grid-template-columns: 1fr; }
}
.xrf-help-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: 12px;
  padding: 28px 24px;
  transition: all .2s ease;
}
.xrf-help-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
  transform: translateY(-2px);
}
.xrf-help-card .help-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, #fff5f0 0%, #ffe8db 100%);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.xrf-help-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--color-text);
}
.xrf-help-card p {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin: 0;
}
.xrf-help-card code {
  background: #f1f5f9;
  color: var(--color-text);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.88em;
}
.xrf-help-card a { color: var(--color-accent); text-decoration: none; }
.xrf-help-card a:hover { text-decoration: underline; }

/* ==========================================================================
   全站浮动按钮（WhatsApp / 邮件 / 微信 / 电话 / 询盘 / 回顶）
   ========================================================================== */

.floater {
  position: fixed;
  right: 20px;
  bottom: 90px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.floater-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 14px rgba(0,0,0,0.18);
  transition: all .2s ease;
  position: relative;
}
.floater-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}
.floater-btn .floater-tip {
  position: absolute;
  right: 64px;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(15, 23, 42, 0.92);
  color: #fff;
  font-size: 0.85rem;
  padding: 6px 12px;
  border-radius: 6px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity .15s ease;
}
.floater-btn:hover .floater-tip {
  opacity: 1;
}

.floater-wa    { background: #25D366; }
.floater-email { background: #2563eb; }
.floater-wechat{ background: #07c160; }
.floater-phone { background: #ff6b35; }
.floater-quote { background: linear-gradient(135deg, #ff6b35 0%, #ff8a5b 100%); }
.floater-top   { background: #475569; }

.floater-quote {
  width: 60px;
  height: 60px;
}
.floater-quote svg {
  width: 26px;
  height: 26px;
}

/* 浮动面板（微信二维码 + 询盘表单） */
.floater-panel {
  position: fixed;
  right: 84px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 200;
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.18);
  width: 320px;
  max-width: calc(100vw - 110px);
  max-height: calc(100vh - 80px);
  overflow-y: auto;
  border: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  justify-content: center;
}
.floater-panel-inner {
  padding: 24px;
  width: 100%;
  position: relative;
}
.floater-panel-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: transparent;
  border: 0;
  color: var(--color-text-secondary);
  cursor: pointer;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.floater-panel-close:hover {
  background: #f1f5f9;
  color: var(--color-text);
}
.floater-panel h4 {
  margin: 0 0 16px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
}
.wechat-qr {
  width: 180px;
  height: 180px;
  margin: 0 auto 12px;
  background: #f8fafc;
  border: 1px solid var(--color-border-light);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.wechat-qr-placeholder {
  color: #94a3b8;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 4px;
}
.floater-panel p {
  margin: 8px 0;
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  text-align: center;
}
.wechat-id {
  margin-top: 12px;
  padding: 10px 12px;
  background: #f8fafc;
  border-radius: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}
.btn-copy {
  background: #fff;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.8rem;
  cursor: pointer;
}
.btn-copy:hover {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

/* 询盘表单 */
.quick-quote-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.qq-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.qq-row label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}
.qq-row input,
.qq-row textarea {
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.9rem;
  font-family: inherit;
  width: 100%;
  box-sizing: border-box;
}
.qq-row input:focus,
.qq-row textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.12);
}
.qq-submit {
  margin-top: 4px;
  padding: 10px 16px;
  font-weight: 600;
}
.qq-note {
  font-size: 0.78rem;
  text-align: center;
  color: var(--color-text-secondary);
  margin: 4px 0 0;
}

@media (max-width: 768px) {
  .floater { right: 12px; bottom: 80px; gap: 8px; }
  .floater-btn { width: 46px; height: 46px; }
  .floater-btn svg { width: 22px; height: 22px; }
  .floater-quote { width: 52px; height: 52px; }
  .floater-panel {
    right: 70px;
    top: 50%;
    transform: translateY(-50%);
    width: calc(100vw - 90px);
  }
}

/* ==========================================================================
   About 页面专用样式
   ========================================================================== */

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.eyebrow-light { color: #ff8a5b; }

.about-hero-en {
  background: linear-gradient(135deg, #0a2540 0%, #1a3a5c 60%, #1e4976 100%);
  color: #fff;
  padding: 60px 0 80px;
}
.about-hero-en h1 {
  color: #fff;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}
.about-hero-sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.85);
  max-width: 800px;
  line-height: 1.6;
}
.about-hero-stats {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.about-hero-stats > div {
  display: flex;
  flex-direction: column;
}
.about-hero-stats strong {
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -0.02em;
}
.about-hero-stats span {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.75);
  margin-top: 2px;
}
@media (max-width: 900px) {
  .about-hero-stats { grid-template-columns: repeat(3, 1fr); gap: 20px; }
}
@media (max-width: 480px) {
  .about-hero-stats { grid-template-columns: repeat(2, 1fr); }
}

/* 双栏布局 */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 60px;
  align-items: center;
}
@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
}
.about-text h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--color-text);
  margin: 0 0 20px;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.about-text p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-text-secondary);
  margin: 0 0 16px;
}
.about-text strong { color: var(--color-text); font-weight: 700; }
.about-cta-row {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}
.about-visual {
  display: flex;
  justify-content: center;
}
.about-image-box {
  width: 100%;
  max-width: 420px;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.18);
}
.about-image-box svg { width: 100%; height: auto; display: block; }

/* Capability */
.capability-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: 14px;
  padding: 28px 24px;
  transition: all .25s ease;
  height: 100%;
}
.capability-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  transform: translateY(-4px);
}
.capability-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}
.capability-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 10px;
}
.capability-card p {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin: 0 0 12px;
}
.capability-list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.88rem;
  color: var(--color-text-secondary);
}
.capability-list li {
  padding: 4px 0 4px 18px;
  position: relative;
}
.capability-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

/* Regions */
.region-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 900px) { .region-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .region-grid { grid-template-columns: 1fr; } }

.region-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: 12px;
  padding: 24px 22px;
  position: relative;
  transition: all .25s ease;
}
.region-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.06);
}
.region-flag {
  font-size: 1.6rem;
  margin-bottom: 10px;
  letter-spacing: 2px;
}
.region-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 8px;
}
.region-card p {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.6;
}
.region-marker {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  background: rgba(255, 107, 53, 0.1);
  padding: 3px 8px;
  border-radius: 4px;
}

/* Clients */
.section-title.light h2,
.section-title.light p {
  color: #fff;
}
.section.light,
.section.bg-dark .section-title p {
  color: rgba(255,255,255,0.85);
}

.client-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
@media (max-width: 900px) { .client-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 540px) { .client-grid { grid-template-columns: repeat(2, 1fr); } }

.client-logo {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .2s ease;
  padding: 12px;
}
.client-logo:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.3);
}
.client-logo-placeholder {
  color: rgba(255,255,255,0.7);
  font-size: 0.82rem;
  font-weight: 600;
  text-align: center;
}
.client-cta {
  text-align: center;
  margin-top: 48px;
  color: rgba(255,255,255,0.9);
}
.client-cta p {
  font-size: 1.05rem;
  margin-bottom: 20px;
}

/* Timeline */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 80px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 50px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-accent), var(--color-accent) 50%, #e2e8f0 100%);
}
.timeline-item {
  position: relative;
  padding-bottom: 32px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-year {
  position: absolute;
  left: -80px;
  top: 0;
  width: 60px;
  text-align: center;
  background: var(--color-accent);
  color: #fff;
  padding: 8px 0;
  border-radius: 6px;
  font-weight: 800;
  font-size: 0.95rem;
  z-index: 1;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -38px;
  top: 14px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--color-accent);
}
.timeline-content {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: 12px;
  padding: 20px 24px;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}
.timeline-content h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 6px;
}
.timeline-content p {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.6;
}
@media (max-width: 540px) {
  .timeline { padding-left: 60px; }
  .timeline::before { left: 36px; }
  .timeline-year { left: -60px; width: 50px; font-size: 0.85rem; }
  .timeline-item::before { left: -32px; }
}

/* CTA Band */
.cta-band {
  background: linear-gradient(135deg, #0a2540 0%, #1a3a5c 100%);
  color: #fff;
}
.cta-band-inner {
  text-align: center;
  padding: 60px 0;
}
.cta-band-inner h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  margin: 0 0 16px;
  color: #fff;
}
.cta-band-inner p {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.85);
  max-width: 640px;
  margin: 0 auto 32px;
  line-height: 1.6;
}
.cta-band-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-outline-light {
  background: transparent;
  color: #fff;
  border: 1.5px solid #fff;
}
.btn-outline-light:hover {
  background: #fff;
  color: #0a2540;
}

/* Topbar time */
.topbar-time {
  color: rgba(255,255,255,0.7);
  font-size: 0.82rem;
  margin-left: 16px;
}

/* Hero Stats - 中文版也通用 */
.about-hero-stats {
  /* inherited from above */
}

/* Section title light - 已有 .section.bg-dark */
.section.bg-dark h2,
.section.bg-dark p {
  color: #fff;
}

/* Buttons outline */
.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border: 1.5px solid var(--color-accent);
}
.btn-outline:hover {
  background: var(--color-accent);
  color: #fff;
}

/* ==========================================================================
   English Homepage Hero
   ========================================================================== */

.hero-en {
  position: relative;
  padding: 80px 0 100px;
  background: linear-gradient(135deg, #0a2540 0%, #1a3a5c 60%, #1e4976 100%);
  color: #fff;
  overflow: hidden;
}
.hero-en-bg {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255, 107, 53, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(7, 193, 96, 0.1) 0%, transparent 40%);
  pointer-events: none;
}
.hero-en-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  mask-image: linear-gradient(180deg, transparent 0%, black 30%, black 70%, transparent 100%);
}
.hero-en-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 60px;
  align-items: center;
}
@media (max-width: 960px) {
  .hero-en-inner { grid-template-columns: 1fr; gap: 40px; }
}
.hero-en-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 999px;
  font-size: 0.85rem;
  margin-bottom: 24px;
}
.hero-en-tag .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
.hero-en-content h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.5rem);
  font-weight: 800;
  color: #fff;
  margin: 0 0 20px;
  letter-spacing: -0.025em;
  line-height: 1.1;
}
.hero-en-sub {
  font-size: 1.1rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.85);
  margin: 0 0 28px;
  max-width: 580px;
}
.hero-en-sub strong {
  color: var(--color-accent);
  font-weight: 700;
}
.hero-en-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.hero-en-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.85);
}
.badge-item {
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Stats card */
.hero-en-card {
  background: #fff;
  color: var(--color-text);
  border-radius: 16px;
  padding: 24px 28px;
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.1);
}
.hero-en-card-head {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: 16px;
}
.hero-en-card-head strong {
  font-size: 1rem;
  font-weight: 700;
}
.hero-en-card-stats {
  list-style: none;
  margin: 0;
  padding: 0;
}
.hero-en-card-stats li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 8px 0;
  border-bottom: 1px dashed var(--color-border-light);
  font-size: 0.92rem;
}
.hero-en-card-stats li:last-child { border-bottom: 0; }
.hero-en-card-stats span {
  color: var(--color-text-secondary);
}
.hero-en-card-stats strong {
  color: var(--color-text);
  font-weight: 800;
  font-size: 1rem;
}
.hero-en-card-foot {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
}
.hero-en-card-foot a {
  color: var(--color-accent);
  font-weight: 700;
  text-decoration: none;
}
.hero-en-card-foot a:hover { text-decoration: underline; }

/* Trusted by marquee */
.section-tight { padding: 32px 0; }
.trusted-label {
  text-align: center;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--color-text-secondary);
  margin: 0 0 20px;
}
.logo-marquee {
  overflow: hidden;
  padding: 16px 0;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
  background: #fff;
}
.logo-marquee-track {
  display: flex;
  gap: 48px;
  animation: marquee 40s linear infinite;
  white-space: nowrap;
  align-items: center;
}
.logo-marquee-track span {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  letter-spacing: 0.02em;
  flex-shrink: 0;
}
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Product category grid */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
@media (max-width: 960px) { .cat-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .cat-grid { grid-template-columns: 1fr; } }

.cat-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: 14px;
  padding: 28px 24px;
  text-decoration: none;
  color: inherit;
  position: relative;
  transition: all .25s ease;
  display: flex;
  flex-direction: column;
}
.cat-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}
.cat-icon {
  font-size: 2.4rem;
  margin-bottom: 12px;
}
.cat-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 4px;
}
.cat-card strong {
  font-size: 0.85rem;
  color: var(--color-accent);
  font-weight: 700;
  margin-bottom: 8px;
}
.cat-card p {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
  flex: 1;
}
.cat-arrow {
  position: absolute;
  top: 24px;
  right: 24px;
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  transition: all .2s ease;
}
.cat-card:hover .cat-arrow {
  color: var(--color-accent);
  transform: translateX(4px);
}

/* Why PERSOLY */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
@media (max-width: 900px) { .why-grid { grid-template-columns: 1fr; } }
.why-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: 14px;
  padding: 32px 28px;
  position: relative;
}
.why-num {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-accent);
  opacity: 0.18;
  letter-spacing: -0.04em;
  margin-bottom: 8px;
}
.why-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 10px;
}
.why-card p {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  margin: 0;
}

/* Trade grid */
.trade-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
@media (max-width: 900px) { .trade-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .trade-grid { grid-template-columns: 1fr; } }
.trade-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  padding: 24px 22px;
  transition: all .2s ease;
}
.trade-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.2);
}
.trade-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}
.trade-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin: 0 0 8px;
}
.trade-card p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.75);
  margin: 0;
  line-height: 1.6;
}

/* Testimonials */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 900px) { .testimonial-grid { grid-template-columns: 1fr; } }
.testimonial-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: 14px;
  padding: 28px 26px;
  position: relative;
}
.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 8px;
  left: 18px;
  font-size: 4rem;
  color: var(--color-accent);
  opacity: 0.15;
  font-family: Georgia, serif;
  line-height: 1;
}
.testimonial-rating {
  color: #f59e0b;
  font-size: 1rem;
  letter-spacing: 2px;
  margin-bottom: 12px;
}
.testimonial-card p {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  margin: 0 0 16px;
  font-style: italic;
}
.testimonial-author strong {
  display: block;
  font-size: 0.95rem;
  color: var(--color-text);
  margin-bottom: 2px;
}
.testimonial-author span {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
}

/* Topbar link colors for en version (override if needed) */
.topbar-right a.active {
  color: #fff;
  font-weight: 700;
}
.topbar-right a:not(.active) {
  color: rgba(255,255,255,0.65);
}

/* ==========================================================================
   产品页：MOQ / HS Code / 装箱量 / 货期 字段
   ========================================================================== */

.product-trade-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  padding: 10px 12px;
  background: #f8fafc;
  border-radius: 8px;
  margin: 8px 0 10px;
  border: 1px solid var(--color-border-light);
}
.trade-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 2px;
}
.trade-cell span {
  font-size: 0.65rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}
.trade-cell strong {
  font-size: 0.78rem;
  color: var(--color-text);
  font-weight: 800;
}

/* Modal: 商业信息卡片 */
.trade-info-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 16px 0;
}
@media (max-width: 540px) {
  .trade-info-grid { grid-template-columns: repeat(2, 1fr); }
}
.trade-info-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
  border: 1px solid #fed7aa;
  border-radius: 8px;
}
.trade-info-label {
  font-size: 0.7rem;
  color: #9a3412;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.trade-info-value {
  font-size: 1rem;
  color: #9a3412;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.trade-info-sub {
  font-size: 0.7rem;
  color: #c2410c;
  opacity: 0.8;
}

/* Modal photo */
.modal-photo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
  background: #fff;
}

/* Category quick nav */
.cat-nav {
  background: #fff;
  border-bottom: 1px solid var(--color-border-light);
  padding: 24px 0;
}
.cat-nav-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
@media (max-width: 768px) { .cat-nav-grid { grid-template-columns: repeat(2, 1fr); } }
.cat-nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border: 1px solid var(--color-border-light);
  border-radius: 10px;
  text-decoration: none;
  color: inherit;
  transition: all .2s ease;
  background: #fff;
}
.cat-nav-item:hover {
  border-color: var(--color-accent);
  background: rgba(255, 107, 53, 0.04);
  transform: translateY(-2px);
}
.cat-nav-icon { font-size: 1.8rem; }
.cat-nav-item strong {
  display: block;
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 700;
}
.cat-nav-item small {
  color: var(--color-text-secondary);
  font-size: 0.82rem;
}

/* Products toolbar */
.products-toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.products-toolbar-stats strong {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-text);
}
.products-toolbar-stats span {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-left: 6px;
}
.products-search {
  flex: 1;
  position: relative;
  max-width: 420px;
  margin-left: auto;
}
.products-search input {
  width: 100%;
  padding: 10px 16px 10px 38px;
  border: 1.5px solid var(--color-border);
  border-radius: 8px;
  font-size: 0.92rem;
  font-family: inherit;
  background: #fff;
}
.products-search input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.12);
}
.products-search svg {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-secondary);
}

/* Cross-sell cards */
.cross-sell-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 900px) { .cross-sell-grid { grid-template-columns: 1fr; } }
.cross-sell-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: 14px;
  padding: 28px 26px;
  text-decoration: none;
  color: inherit;
  transition: all .25s ease;
  display: flex;
  flex-direction: column;
}
.cross-sell-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}
.cross-sell-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}
.cross-sell-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 8px;
}
.cross-sell-card p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin: 0 0 14px;
  flex: 1;
}
.cross-sell-card span {
  font-size: 0.85rem;
  color: var(--color-accent);
  font-weight: 700;
}

/* ==========================================================================
   Contact 页面（英文版）专用样式
   ========================================================================== */

.contact-channels {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 900px) { .contact-channels { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .contact-channels { grid-template-columns: 1fr; } }

.channel-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: 14px;
  padding: 28px 24px;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  transition: all .25s ease;
  cursor: pointer;
}
.channel-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}
.channel-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: #fff;
}
.channel-whatsapp .channel-icon { background: #25D366; }
.channel-wechat   .channel-icon { background: #07c160; }
.channel-email    .channel-icon { background: #2563eb; }
.channel-skype    .channel-icon { background: #00aff0; }
.channel-phone    .channel-icon { background: #ff6b35; }
.channel-secondary .channel-icon { background: #475569; }

.channel-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 6px;
}
.channel-primary {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 4px;
  word-break: break-all;
}
.channel-meta {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin: 0 0 16px;
  flex: 1;
}
.channel-action {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-accent);
}

/* Inquiry section */
.inquiry-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  align-items: start;
}
@media (max-width: 900px) { .inquiry-grid { grid-template-columns: 1fr; gap: 32px; } }
.inquiry-info h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  margin: 0 0 16px;
  color: var(--color-text);
}
.inquiry-info > p {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin: 0 0 24px;
}
.inquiry-trust {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 24px 0;
  padding: 20px 0;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}
.trust-item strong {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-accent);
  margin-bottom: 4px;
}
.trust-item span {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
}
.inquiry-tips {
  margin-top: 24px;
  padding: 20px 24px;
  background: rgba(255, 107, 53, 0.05);
  border-left: 3px solid var(--color-accent);
  border-radius: 6px;
}
.inquiry-tips h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 10px;
}
.inquiry-tips ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.inquiry-tips li {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  padding: 4px 0;
}

/* Form */
.inquiry-form {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: 14px;
  padding: 32px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
}
.inquiry-form h3 {
  margin: 0 0 24px;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 540px) { .form-row { grid-template-columns: 1fr; } }
.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}
.form-field label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
}
.form-field input,
.form-field select,
.form-field textarea {
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 0.92rem;
  font-family: inherit;
  width: 100%;
  box-sizing: border-box;
  background: #fff;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.12);
}
.form-submit {
  width: 100%;
  margin-top: 8px;
}
.form-note {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  text-align: center;
  margin: 12px 0 0;
}
.form-note a { color: var(--color-accent); text-decoration: none; }

/* Warehouses */
.warehouse-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
@media (max-width: 768px) { .warehouse-grid { grid-template-columns: 1fr; } }
.warehouse-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: 14px;
  padding: 28px 26px;
  border-top: 4px solid var(--color-accent);
}
.warehouse-flag {
  font-size: 2.5rem;
  margin-bottom: 8px;
}
.warehouse-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 4px;
}
.warehouse-loc {
  font-size: 0.92rem;
  color: var(--color-accent);
  font-weight: 600;
  margin: 0 0 12px;
}
.warehouse-card p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0 0 12px;
}
.warehouse-card ul {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
}
.warehouse-card li {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  padding: 3px 0;
}

/* FAQ */
.faq-grid {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: 10px;
  margin-bottom: 12px;
  overflow: hidden;
}
.faq-item summary {
  padding: 16px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  position: relative;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  position: absolute;
  right: 24px;
  font-size: 1.4rem;
  color: var(--color-accent);
  font-weight: 700;
  transition: transform .2s;
}
.faq-item[open] summary::after {
  content: '−';
}
.faq-item p {
  margin: 0;
  padding: 0 24px 18px;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
}

/* ==========================================================================
   Solutions 页面（行业方案）
   ========================================================================== */

.solution-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
@media (max-width: 768px) { .solution-grid { grid-template-columns: 1fr; } }

.solution-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: 14px;
  padding: 32px 28px;
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  align-items: start;
  transition: all .25s ease;
}
.solution-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}
.solution-icon {
  font-size: 3rem;
  text-align: center;
  line-height: 1;
}
.solution-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 8px;
}
.solution-content > p {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0 0 14px;
}
.solution-brands {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}
.solution-brands span {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: #f1f5f9;
  padding: 3px 10px;
  border-radius: 4px;
}
.solution-sku {
  font-size: 0.85rem;
  color: var(--color-accent);
  font-weight: 700;
  margin-bottom: 14px;
}
.solution-sku strong {
  font-size: 0.95rem;
}
.solution-disclaimer {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  font-style: italic;
  text-align: center;
  margin: 32px 0 0;
}

/* Business Models */
.model-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 900px) { .model-grid { grid-template-columns: 1fr; } }
.model-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: 14px;
  padding: 32px 28px;
  position: relative;
  transition: all .25s ease;
}
.model-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}
.model-featured {
  border-color: var(--color-accent);
  border-width: 2px;
  background: linear-gradient(180deg, #fff7ed 0%, #fff 100%);
}
.model-num {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}
.model-tag {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 4px;
  margin-left: 8px;
  letter-spacing: 0;
}
.model-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 10px;
}
.model-card > p {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0 0 16px;
}
.model-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
}
.model-card li {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  padding: 4px 0;
}

/* Why PERSOLY (solutions) */
.why-persoly-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 900px) { .why-persoly-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .why-persoly-grid { grid-template-columns: 1fr; } }
.why-persoly-card {
  padding: 24px;
}
.why-persoly-num {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-accent);
  opacity: 0.2;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 8px;
}
.why-persoly-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 8px;
}
.why-persoly-card p {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin: 0;
}

/* ==========================================================================
   English Homepage Styles (en/index.html)
   ========================================================================== */

.hero-en {
  position: relative;
  padding: 80px 0 100px;
  background: linear-gradient(135deg, #0a2540 0%, #1a3a5c 60%, #1e4976 100%);
  color: #fff;
  overflow: hidden;
}
.hero-en-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(255, 107, 53, 0.18) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(7, 193, 96, 0.1) 0%, transparent 40%);
  pointer-events: none;
}
.hero-en-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 60px;
  align-items: center;
}
@media (max-width: 960px) {
  .hero-en-inner { grid-template-columns: 1fr; gap: 40px; }
}
.hero-en-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 999px;
  font-size: 0.85rem;
  margin-bottom: 24px;
}
.hero-en-tag .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
.hero-en-content h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.5rem);
  font-weight: 800;
  color: #fff;
  margin: 0 0 20px;
  letter-spacing: -0.025em;
  line-height: 1.1;
}
.hero-en-sub {
  font-size: 1.1rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.85);
  margin: 0 0 28px;
  max-width: 580px;
}
.hero-en-sub strong {
  color: var(--color-accent);
  font-weight: 700;
}
.hero-en-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.hero-en-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.85);
}
.badge-item {
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-en-card {
  background: #fff;
  color: var(--color-text);
  border-radius: 16px;
  padding: 24px 28px;
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.1);
}
.hero-en-card-head {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.hero-en-card-head strong {
  font-size: 1rem;
  font-weight: 700;
}
.hero-en-card-sub {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}
.hero-en-card-stats {
  list-style: none;
  margin: 0;
  padding: 0;
}
.hero-en-card-stats li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 8px 0;
  border-bottom: 1px dashed var(--color-border-light);
  font-size: 0.92rem;
}
.hero-en-card-stats li:last-child { border-bottom: 0; }
.hero-en-card-stats span {
  color: var(--color-text-secondary);
}
.hero-en-card-stats strong {
  color: var(--color-text);
  font-weight: 800;
  font-size: 1rem;
}
.hero-en-card-foot {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
}
.hero-en-card-foot a {
  color: var(--color-accent);
  font-weight: 700;
  text-decoration: none;
}
.hero-en-card-foot a:hover { text-decoration: underline; }

/* Section helpers */
.section-tight { padding: 32px 0; }
.section-title.light h2 { color: #fff; }
.section-title.light p { color: rgba(255, 255, 255, 0.75); }
.bg-dark {
  background: #0a2540;
  color: #fff;
}

.trusted-label {
  text-align: center;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--color-text-secondary);
  margin: 0 0 20px;
}
.logo-marquee {
  overflow: hidden;
  padding: 16px 0;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
  background: #fff;
}
.logo-marquee-track {
  display: flex;
  gap: 40px;
  animation: marquee 60s linear infinite;
  white-space: nowrap;
  align-items: center;
  width: max-content;
}
.logo-marquee-track span {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  letter-spacing: 0.02em;
  flex-shrink: 0;
}
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Top bar separator (en version) */
.topbar-sep { color: rgba(255, 255, 255, 0.3); margin: 0 8px; }

/* Product category grid */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
@media (max-width: 960px) { .cat-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .cat-grid { grid-template-columns: 1fr; } }

.cat-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: 14px;
  padding: 28px 24px;
  text-decoration: none;
  color: inherit;
  position: relative;
  transition: all .25s ease;
}
.cat-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}
.cat-icon {
  font-size: 2.4rem;
  margin-bottom: 12px;
}
.cat-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 4px;
}
.cat-card strong {
  font-size: 0.85rem;
  color: var(--color-accent);
  font-weight: 700;
  margin-bottom: 8px;
  display: block;
}
.cat-card p {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
}
.cat-arrow {
  position: absolute;
  top: 24px;
  right: 24px;
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  transition: all .2s ease;
}
.cat-card:hover .cat-arrow {
  color: var(--color-accent);
  transform: translateX(4px);
}

/* Cross-reference CTA */
.xrf-cta {
  padding: 80px 0;
  background: linear-gradient(135deg, #0a2540 0%, #1e4976 100%);
  color: #fff;
}
.xrf-cta-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
@media (max-width: 900px) { .xrf-cta-inner { grid-template-columns: 1fr; } }
.xrf-cta-text h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  color: #fff;
  margin: 16px 0 16px;
}
.xrf-cta-text p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.85);
  margin: 0 0 24px;
  line-height: 1.6;
}
.xrf-cta-text p strong { color: var(--color-accent); }

.xrf-cta-demo {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 14px;
  padding: 28px;
  backdrop-filter: blur(8px);
}
.xrf-cta-search {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
}
.xrf-cta-search input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
}
.xrf-cta-search input:focus {
  outline: none;
  border-color: var(--color-accent);
}
.xrf-cta-result {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.xrf-cta-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.92rem;
}
.xrf-cta-row span:first-child { color: rgba(255, 255, 255, 0.75); font-family: monospace; }
.xrf-cta-row strong { color: var(--color-accent); font-weight: 800; font-family: monospace; }
.xrf-cta-arrow { color: rgba(255, 255, 255, 0.5); font-size: 1.2rem; }

/* Why PERSOLY */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
@media (max-width: 900px) { .why-grid { grid-template-columns: 1fr; } }
.why-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: 14px;
  padding: 32px 28px;
  position: relative;
}
.why-num {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-accent);
  opacity: 0.18;
  letter-spacing: -0.04em;
  margin-bottom: 8px;
}
.why-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 10px;
}
.why-card p {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  margin: 0;
}

/* Trade assurance */
.trade-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
@media (max-width: 900px) { .trade-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .trade-grid { grid-template-columns: 1fr; } }
.trade-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 24px 22px;
  transition: all .2s ease;
}
.trade-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
}
.trade-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}
.trade-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin: 0 0 8px;
}
.trade-card p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.75);
  margin: 0;
  line-height: 1.6;
}

/* Testimonials */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 900px) { .testimonial-grid { grid-template-columns: 1fr; } }
.testimonial-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: 14px;
  padding: 28px 26px;
  position: relative;
}
.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 8px;
  left: 18px;
  font-size: 4rem;
  color: var(--color-accent);
  opacity: 0.15;
  font-family: Georgia, serif;
  line-height: 1;
}
.testimonial-rating {
  color: #f59e0b;
  font-size: 1rem;
  letter-spacing: 2px;
  margin-bottom: 12px;
}
.testimonial-card p {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  margin: 0 0 16px;
  font-style: italic;
}
.testimonial-author strong {
  display: block;
  font-size: 0.95rem;
  color: var(--color-text);
  margin-bottom: 2px;
}
.testimonial-author span {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
}

/* CTA band */
.cta-band {
  background: linear-gradient(135deg, #ff6b35 0%, #f04a16 100%);
  color: #fff;
  padding: 64px 0;
}
.cta-band-inner {
  text-align: center;
}
.cta-band-inner h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  color: #fff;
  margin: 0 0 16px;
}
.cta-band-inner p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.92);
  margin: 0 0 24px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}
.cta-band-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-outline-light {
  background: transparent;
  color: #fff;
  border: 1.5px solid #fff;
}
.btn-outline-light:hover {
  background: #fff;
  color: var(--color-accent);
}

/* Topbar right: active style override for en */
.topbar-right a.active {
  color: #fff;
  font-weight: 700;
}
.topbar-right a:not(.active) {
  color: rgba(255, 255, 255, 0.65);
}
.topbar-right a:not(.active):hover {
  color: #fff;
}

/* ==========================================================================
   PERSOLY 询价车 — 产品卡按钮状态
   ========================================================================== */
.product-add-quote {
  transition: background .18s, color .18s, border-color .18s;
}
.product-add-quote.is-in-cart {
  background: var(--rd-fg, #0a0a0a);
  color: #fff;
  border-color: var(--rd-fg, #0a0a0a);
}
.product-add-quote.is-in-cart:hover {
  background: var(--rd-accent, #ff5722);
  border-color: var(--rd-accent, #ff5722);
}
.product-add-quote.is-added {
  background: var(--rd-accent, #ff5722) !important;
  color: #fff !important;
  border-color: var(--rd-accent, #ff5722) !important;
}

/* ==========================================================================
   产品列表页 — 侧边栏 + 4 列极简卡片（UFI / MANN-FILTER 风格）
   ========================================================================== */

/* === 整体布局 === */
.pl-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 880px) {
  .pl-layout { grid-template-columns: 1fr; gap: 24px; }
}

/* === 侧边栏 === */
.pl-side {
  position: sticky; top: 100px;
  border: 1px solid var(--rd-rule);
  background: #fff;
  padding: 20px 18px;
}
.pl-side-block { margin-bottom: 20px; }
.pl-side-block:last-of-type { margin-bottom: 0; }
.pl-side-label {
  font-size: 10px; font-weight: 700; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--rd-fg-muted);
  margin-bottom: 10px; padding-bottom: 8px;
  border-bottom: 1px solid var(--rd-rule);
}

/* === 极简头部：面包屑 + 标题 + 数量 === */
.pl-bar {
  background: #fff;
  border-bottom: 1px solid var(--rd-rule);
  padding: 24px 0 22px;
}
.pl-crumb { margin-bottom: 16px; }
.pl-bar-row {
  display: flex; justify-content: space-between; align-items: baseline;
  flex-wrap: wrap; gap: 12px;
}
.pl-bar-title {
  font-size: 28px; font-weight: 900; letter-spacing: -0.02em;
  color: var(--rd-fg); margin: 0; line-height: 1.1;
}
.pl-bar-title em {
  font-style: normal; color: var(--rd-fg-muted);
  font-size: 18px; font-weight: 500; margin-left: 6px;
  letter-spacing: 0;
}
.pl-bar-count {
  font-size: 12px; color: var(--rd-fg-muted);
  letter-spacing: 0.06em;
}
.pl-bar-count strong {
  font-family: 'Inter', monospace; font-weight: 800;
  color: var(--rd-fg); font-size: 16px; margin-right: 2px;
}

/* === excofilter 风格：左侧分类导航 + 右侧横向卡片列表 === */
.pl-page {
  background: #fff;
  padding: 32px 0 60px;
}
.pl-layout-2col {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 880px) {
  .pl-layout-2col { grid-template-columns: 1fr; gap: 24px; }
}

/* 左侧分类导航（蓝色链接） */
.pl-nav-side {
  position: sticky; top: 100px;
  border-top: 1px solid var(--rd-fg);
}
.pl-nav-list {
  list-style: none; margin: 0; padding: 0;
  border-bottom: 1px solid var(--rd-fg);
}
.pl-nav-list li { border-bottom: 1px solid var(--rd-rule); }
.pl-nav-list li:last-child { border-bottom: 0; }
.pl-nav-link {
  display: block; padding: 14px 4px;
  color: var(--rd-fg); text-decoration: none;
  font-size: 14px; font-weight: 500;
  letter-spacing: 0.02em;
  transition: color .15s, padding-left .15s;
  position: relative;
}
.pl-nav-link:hover {
  color: var(--rd-accent);
  padding-left: 12px;
}
.pl-nav-link:hover::before {
  content: ''; position: absolute; left: 0; top: 50%;
  width: 4px; height: 4px; background: var(--rd-accent);
  transform: translateY(-50%);
}
.pl-nav-link.active {
  color: var(--rd-fg); font-weight: 800;
}
.pl-nav-link.active::before {
  content: ''; position: absolute; left: 0; top: 50%;
  width: 0; height: 0;
  border-left: 5px solid var(--rd-accent);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  transform: translateY(-50%);
}

.pl-nav-tip {
  margin-top: 24px; padding: 14px 12px;
  background: #fafafa; border-left: 2px solid var(--rd-accent);
  font-size: 11px; color: var(--rd-fg-muted); line-height: 1.8;
  letter-spacing: 0.04em;
}
.pl-nav-tip strong { color: var(--rd-fg); font-weight: 800; }

/* 右侧：横向卡片列表 */
.pl-list-wrap { min-width: 0; }

.pl-list-toolbar {
  display: flex; align-items: center; gap: 16px;
  flex-wrap: wrap;
  padding-bottom: 16px; margin-bottom: 16px;
  border-bottom: 1px solid var(--rd-rule);
}
.pl-list-search {
  display: flex; align-items: center; gap: 0;
  border: 1px solid var(--rd-rule);
  padding: 0 8px;
  flex: 1; min-width: 220px; max-width: 380px;
}
.pl-list-search svg { color: var(--rd-fg-muted); flex-shrink: 0; }
.pl-list-search input {
  flex: 1; border: 0; padding: 8px 8px;
  font-size: 13px; outline: none; background: transparent;
  color: var(--rd-fg); font-family: inherit;
}
.pl-list-search input::placeholder { color: #aaa; }
.pl-list-search #clearSearch {
  width: 24px; height: 28px; background: transparent; border: 0;
  cursor: pointer; color: var(--rd-fg-muted);
  font-size: 16px; line-height: 1;
}
.pl-list-search:focus-within { border-color: var(--rd-fg); }

.pl-list-meta {
  font-size: 13px; color: var(--rd-fg-muted);
}
.pl-list-meta strong {
  font-family: 'Inter', monospace; font-weight: 800;
  font-size: 16px; color: var(--rd-fg); margin-right: 4px;
  letter-spacing: -0.02em;
}
.pl-list-meta .pl-resultbar-cat { color: var(--rd-accent); font-weight: 600; }

.pl-list-sort { margin-left: auto; }
.pl-select {
  border: 1px solid var(--rd-rule);
  background: #fff; padding: 8px 30px 8px 12px;
  font-size: 12px; font-family: inherit;
  color: var(--rd-fg); font-weight: 600;
  cursor: pointer; outline: none;
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230a0a0a' stroke-width='2'><polyline points='6 9 12 15 18 9'/></svg>");
  background-repeat: no-repeat; background-position: right 8px center;
  background-size: 14px;
}
.pl-select:focus { border-color: var(--rd-fg); }

/* === 横向卡片列表（excofilter 风格） === */
.pl-list {
  display: flex; flex-direction: column;
  gap: 6px;
}
/* --- 紧凑型：列表只显示型号，点击进详情才看图 --- */
.pl-list-row {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 16px;
  background: #fff;
  border: 1px solid var(--rd-rule);
  transition: border-color .15s, box-shadow .15s, transform .15s;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}
.pl-list-row:hover {
  border-color: var(--rd-fg);
  box-shadow: 0 6px 20px rgba(10,10,10,0.06);
}
.pl-list-row--compact {
  grid-template-columns: 88px 1fr 96px;
  gap: 14px;
  padding: 10px 14px;
}
.pl-list-thumb {
  display: flex; align-items: center; justify-content: center;
  width: 120px; height: 120px;
  background: #fafafa;
  border: 1px solid var(--rd-rule);
  overflow: hidden;
}
.pl-list-thumb img {
  max-width: 100%; max-height: 100%;
  object-fit: contain;
}
.pl-list-thumb svg { max-width: 90%; max-height: 90%; }
.pl-list-info { min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.pl-list-sku {
  display: block;
  font-family: 'Inter', monospace;
  font-size: 22px; font-weight: 800;
  color: var(--rd-fg); text-decoration: none;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin-bottom: 6px;
}
.pl-list-sku:hover { color: var(--rd-accent); }
.pl-list-sku-sub {
  font-size: 11px; color: var(--rd-fg-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
}
.pl-list-desc {
  font-size: 13px; color: var(--rd-fg-muted);
  line-height: 1.6; margin-bottom: 10px;
}
.pl-list-meta {
  display: flex; gap: 16px; flex-wrap: wrap;
  font-size: 11px; color: var(--rd-fg-muted);
  letter-spacing: 0.06em;
}
.pl-list-meta span { display: inline-block; }
.pl-list-tag {
  display: flex; align-items: center; justify-content: center;
  height: 100%;
  min-width: 88px; min-height: 56px;
  padding: 8px 10px;
  font-size: 11px; font-weight: 800;
  letter-spacing: 0.1em;
  text-align: center;
  background: var(--rd-fg); color: #fff;
  border: 1px solid var(--rd-fg);
  text-transform: uppercase;
}
.pl-list-tag--air     { background: #1f2937; border-color: #1f2937; }
.pl-list-tag--fuel    { background: #b91c1c; border-color: #b91c1c; }
.pl-list-tag--oil     { background: #c2410c; border-color: #c2410c; }
.pl-list-tag--other   { background: #6b7280; border-color: #6b7280; }
.pl-list-tag-cn {
  display: inline-block; white-space: nowrap;
  font-family: 'Inter', 'PingFang SC', sans-serif;
}
.pl-list-cat {
  font-weight: 700; color: var(--rd-fg);
  padding: 2px 8px; background: #fafafa;
  border: 1px solid var(--rd-rule);
  font-size: 10px; letter-spacing: 0.1em;
  text-transform: uppercase;
}
.pl-list-dim {
  font-family: 'Inter', monospace;
}
.pl-list-trade {
  font-family: 'Inter', monospace;
}
.pl-list-add {
  background: var(--rd-fg); color: #fff;
  border: 0; padding: 12px 20px;
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.1em; cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
  transition: background .15s;
  display: flex; align-items: center; justify-content: center;
  gap: 6px;
  height: 100%;
}
.pl-list-add:hover { background: var(--rd-accent); }
.pl-list-add.added {
  background: #fff; color: var(--rd-fg);
  border: 1px solid var(--rd-fg);
}
.pl-list-add-plus {
  font-size: 14px; line-height: 1;
}
.pl-list-add-text {
  font-size: 12px;
}
@media (max-width: 720px) {
  .pl-list-row {
    grid-template-columns: 80px 1fr;
    grid-template-rows: auto auto;
  }
  .pl-list-row--compact {
    grid-template-columns: 64px 1fr 72px;
    padding: 8px 10px;
  }
  .pl-list-thumb { width: 80px; height: 80px; }
  .pl-list-tag { min-width: 64px; min-height: 44px; font-size: 10px; }
  .pl-list-sku { font-size: 16px; margin-bottom: 2px; }
  .pl-list-add { grid-column: 1 / -1; padding: 10px; }
}

/* 分页 */
.pl-pagination {
  display: flex; align-items: center; justify-content: center;
  gap: 12px; margin-top: 32px;
  padding-top: 20px; border-top: 1px solid var(--rd-rule);
}
.pl-page-btn {
  background: transparent; border: 1px solid var(--rd-rule);
  padding: 8px 16px; font-size: 12px;
  color: var(--rd-fg); font-family: inherit;
  cursor: pointer; letter-spacing: 0.04em;
  transition: all .15s;
}
.pl-page-btn:hover:not(:disabled) { border-color: var(--rd-fg); background: var(--rd-fg); color: #fff; }
.pl-page-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.pl-page-info {
  font-size: 12px; color: var(--rd-fg-muted);
}
.pl-page-info strong { color: var(--rd-fg); font-family: 'Inter', monospace; }

/* 空状态 */
.pl-empty {
  text-align: center; padding: 80px 20px;
  color: var(--rd-fg-muted);
}
.pl-empty svg { color: var(--rd-fg-muted); }
.pl-empty h3 {
  font-size: 18px; color: var(--rd-fg); font-weight: 700;
  margin: 16px 0 8px;
}
.pl-empty p { font-size: 13px; margin: 0 0 20px; }
.pl-empty-btn {
  background: var(--rd-fg); color: #fff;
  border: 0; padding: 10px 24px;
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.1em; cursor: pointer;
  font-family: inherit;
}
.pl-empty-btn:hover { background: var(--rd-accent); }

/* 隐藏旧样式 */
.pl-side, .pl-layout, .pl-grid, .pl-card,
.pl-cat-rows, .pl-cat-row, .pl-cat-index,
.pl-prod-section, .pl-toolbar, .pl-cat-list { display: none; }

/* 搜索框 */
.pl-search-input {
  display: flex; align-items: center; gap: 0;
  border: 1px solid var(--rd-rule);
}
.pl-search-input svg { margin: 0 8px; color: var(--rd-fg-muted); flex-shrink: 0; }
.pl-search-input input {
  flex: 1; border: 0; padding: 10px 0; font-size: 13px;
  outline: none; background: transparent; font-family: inherit;
  color: var(--rd-fg);
}
.pl-search-input input::placeholder { color: var(--rd-fg-muted); }
.pl-search-input #clearSearch {
  width: 28px; height: 32px; background: transparent; border: 0; cursor: pointer;
  color: var(--rd-fg-muted); font-size: 18px; line-height: 1;
}
.pl-search-input #clearSearch:hover { color: var(--rd-fg); }
.pl-search-input:focus-within { border-color: var(--rd-fg); }

/* 搜索模式 chips */
.pl-search-modes {
  display: flex; flex-wrap: wrap; gap: 4px; margin-top: 10px;
}
.pl-mode {
  background: transparent; border: 1px solid var(--rd-rule);
  padding: 4px 10px; font-size: 11px; cursor: pointer;
  color: var(--rd-fg-muted); font-family: inherit;
  letter-spacing: 0.04em;
  transition: all .15s;
}
.pl-mode:hover { color: var(--rd-fg); border-color: var(--rd-fg-muted); }
.pl-mode.active {
  background: var(--rd-fg); color: #fff; border-color: var(--rd-fg);
}

/* 分类 / 排序 list */
.pl-cat-list { list-style: none; margin: 0; padding: 0; }
.pl-cat-list li { border-bottom: 1px solid var(--rd-rule); }
.pl-cat-list li:last-child { border-bottom: 0; }
.pl-cat, .pl-sort {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; background: transparent; border: 0; cursor: pointer;
  padding: 10px 0; font-size: 13px; color: var(--rd-fg);
  font-family: inherit; text-align: left; transition: color .15s;
}
.pl-cat:hover, .pl-sort:hover { color: var(--rd-accent); }
.pl-cat.active, .pl-sort.active { color: var(--rd-fg); font-weight: 700; }
.pl-cat.active::before, .pl-sort.active::before {
  content: ''; display: inline-block;
  width: 8px; height: 2px; background: var(--rd-accent);
  margin-right: 8px;
}
.pl-cat em {
  font-style: normal; font-family: 'Inter', monospace;
  font-size: 11px; color: var(--rd-fg-muted); font-weight: 400;
}
.pl-cat.active em { color: var(--rd-fg); }

/* 提示块 */
.pl-side-tip {
  margin-top: 24px; padding: 14px;
  background: #fafafa; border-left: 2px solid var(--rd-accent);
  font-size: 12px; color: var(--rd-fg-muted); line-height: 1.7;
}
.pl-side-tip strong { color: var(--rd-fg); font-weight: 800; }

/* === 右侧主区 === */
.pl-main { min-width: 0; }

.pl-resultbar {
  display: flex; justify-content: space-between; align-items: center;
  padding-bottom: 16px; margin-bottom: 24px;
  border-bottom: 2px solid var(--rd-fg);
}
.pl-resultbar-l { font-size: 13px; color: var(--rd-fg-muted); letter-spacing: 0.06em; }
.pl-resultbar-l strong {
  font-family: 'Inter', monospace; font-weight: 800;
  font-size: 18px; color: var(--rd-fg); margin-right: 4px;
  letter-spacing: -0.02em;
}
.pl-resultbar-r { display: flex; gap: 4px; }
.pl-view-btn {
  width: 32px; height: 32px;
  background: transparent; border: 1px solid var(--rd-rule);
  cursor: pointer; color: var(--rd-fg-muted);
  display: flex; align-items: center; justify-content: center;
  transition: all .15s;
}
.pl-view-btn:hover { color: var(--rd-fg); border-color: var(--rd-fg); }
.pl-view-btn.active { color: var(--rd-fg); border-color: var(--rd-fg); background: #fafafa; }

/* === 4 列卡片网格 === */
.pl-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--rd-rule);
  border-left: 1px solid var(--rd-rule);
}
@media (max-width: 1080px) { .pl-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 760px)  { .pl-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 460px)  { .pl-grid { grid-template-columns: 1fr; } }

/* 列表视图 */
.pl-grid.is-list { grid-template-columns: 1fr; }
.pl-grid.is-list .pl-card-thumb { aspect-ratio: 16 / 7; }

.pl-card {
  position: relative;
  display: flex; flex-direction: column;
  background: #fff;
  border-right: 1px solid var(--rd-rule);
  border-bottom: 1px solid var(--rd-rule);
  transition: background .18s;
}
.pl-card:hover { background: #fafafa; }

/* 缩略图 — 工业风 fallback */
.pl-card-thumb {
  position: relative;
  aspect-ratio: 1 / 1;
  background:
    radial-gradient(ellipse at 50% 45%, #fff 0%, #f5f5f3 100%);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  border-bottom: 1px solid var(--rd-rule);
}
.pl-card-thumb img {
  width: 100%; height: 100%; object-fit: contain; padding: 8%;
  position: relative; z-index: 2;
}
.pl-card-thumb svg.bp {
  width: 70%; height: 70%;
  position: relative; z-index: 2;
}
.pl-card-thumb svg.bp .bp-line {
  stroke: #1a3a5a; stroke-width: 1.2; fill: none;
}
.pl-card-thumb svg.bp .bp-dim {
  stroke: #ff5722; stroke-width: 1; fill: none;
}
.pl-card-thumb svg.bp .bp-label {
  fill: #6b6b6b; font-family: 'Inter', monospace;
  font-size: 9px; letter-spacing: 0.12em;
}
.pl-card-thumb .pl-card-stamp {
  position: absolute; top: 8px; left: 8px;
  font-family: 'Inter', monospace; font-size: 9px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--rd-fg-muted);
  background: rgba(255,255,255,0.85);
  padding: 3px 6px; z-index: 5;
}
.pl-card-thumb .pl-card-badge {
  position: absolute; top: 8px; right: 8px;
  font-size: 9px; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--rd-fg);
  padding: 3px 6px; border: 1px solid var(--rd-rule);
  background: #fff; z-index: 5;
  font-family: 'Inter', monospace;
}
.pl-card-thumb .pl-card-badge.cat-fuel { color: #c2410c; border-color: rgba(194,65,12,0.3); background: rgba(255,247,237,0.92); }
.pl-card-thumb .pl-card-badge.cat-oil  { color: #1e40af; border-color: rgba(30,64,175,0.3); background: rgba(239,246,255,0.92); }
.pl-card-thumb .pl-card-badge.cat-air  { color: #166534; border-color: rgba(22,101,52,0.3); background: rgba(240,253,244,0.92); }
.pl-card-thumb .pl-card-badge.cat-other { color: #4a4a4a; border-color: var(--rd-rule); background: #fafafa; }

/* 卡片底部信息 */
.pl-card-body { padding: 14px 14px 0; flex: 1; }
.pl-card-cat {
  font-size: 9px; font-weight: 700; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--rd-fg-muted);
}
.pl-card-sku {
  font-family: 'Inter', monospace; font-size: 15px; font-weight: 800;
  color: var(--rd-fg); margin: 6px 0 0; letter-spacing: -0.01em;
}
.pl-card-dim {
  font-size: 11px; color: var(--rd-fg-muted);
  font-family: 'Inter', monospace;
  margin-top: 4px;
}

/* 底部动作 */
.pl-card-foot {
  padding: 12px 14px 14px;
  display: flex; flex-direction: column; gap: 8px;
}
.pl-add {
  width: 100%; padding: 10px 12px;
  background: transparent; color: var(--rd-fg);
  border: 1px solid var(--rd-fg);
  font-size: 11px; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase; cursor: pointer;
  font-family: inherit;
  display: flex; align-items: center; justify-content: center; gap: 6px;
  transition: all .15s;
}
.pl-add:hover { background: var(--rd-fg); color: #fff; }
.pl-add.is-in-cart {
  background: var(--rd-fg); color: #fff;
}
.pl-add.is-in-cart:hover { background: var(--rd-accent); border-color: var(--rd-accent); }
.pl-add.is-added { background: var(--rd-accent); border-color: var(--rd-accent); color: #fff; }
.pl-add svg { width: 12px; height: 12px; }

.pl-card-meta {
  font-size: 10px; color: var(--rd-fg-muted);
  letter-spacing: 0.06em; text-align: center;
  font-family: 'Inter', monospace;
}
.pl-card-meta strong { color: var(--rd-fg); font-weight: 700; }

/* === Loading === */
.pl-loading {
  grid-column: 1 / -1; padding: 80px 0;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  color: var(--rd-fg-muted);
}
.spinner {
  width: 28px; height: 28px;
  border: 2px solid var(--rd-rule); border-top-color: var(--rd-fg);
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* === 分页 === */
.pl-pagination {
  display: flex; justify-content: center; align-items: center; gap: 24px;
  margin-top: 32px; padding: 24px 0;
  border-top: 1px solid var(--rd-rule);
}
.pl-page-btn {
  background: transparent; border: 1px solid var(--rd-rule);
  padding: 10px 20px; font-size: 12px; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  cursor: pointer; color: var(--rd-fg); font-family: inherit;
  transition: all .15s;
}
.pl-page-btn:hover:not(:disabled) { background: var(--rd-fg); color: #fff; }
.pl-page-btn:disabled { opacity: .35; cursor: not-allowed; }
.pl-page-info { font-size: 12px; color: var(--rd-fg-muted); letter-spacing: 0.08em; }
.pl-page-info strong {
  font-family: 'Inter', monospace; font-weight: 800;
  color: var(--rd-fg); margin: 0 2px;
}

/* === 空状态 === */
.pl-empty {
  padding: 80px 32px; text-align: center;
  border: 1px solid var(--rd-rule);
  background: #fafafa;
}
.pl-empty svg { color: var(--rd-fg-muted); margin-bottom: 12px; }
.pl-empty h3 { font-size: 18px; margin: 0 0 6px; color: var(--rd-fg); }
.pl-empty p { font-size: 13px; color: var(--rd-fg-muted); margin: 0 0 20px; }
.pl-empty-btn {
  background: var(--rd-fg); color: #fff; border: 0;
  padding: 12px 24px; font-size: 12px; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  cursor: pointer; font-family: inherit;
}
.pl-empty-btn:hover { background: var(--rd-accent); }

/* === 列表视图下的卡片（横向布局） === */
.pl-grid.is-list .pl-card {
  flex-direction: row; align-items: stretch;
}
.pl-grid.is-list .pl-card-thumb { aspect-ratio: auto; width: 200px; flex-shrink: 0; }
.pl-grid.is-list .pl-card-body { padding: 18px 20px; display: flex; flex-direction: column; justify-content: center; }
.pl-grid.is-list .pl-card-sku { font-size: 18px; }
.pl-grid.is-list .pl-card-dim { font-size: 12px; margin-top: 6px; }
.pl-grid.is-list .pl-card-foot { width: 240px; padding: 18px 20px; justify-content: center; }

/* ==========================================================================
   OEM 交叉检索页 — 搜索 hero + 快速 chips
   ========================================================================== */

.xrf-hero {
  background:
    radial-gradient(ellipse at 80% 30%, rgba(255,87,34,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 20% 70%, rgba(74,144,255,0.05) 0%, transparent 50%),
    #fafafa;
  border-bottom: 1px solid var(--rd-rule);
  padding: 32px 0 48px;
}
.xrf-crumb { margin-bottom: 20px; }
.xrf-hero-title {
  font-size: 36px; font-weight: 900; letter-spacing: -0.02em;
  color: var(--rd-fg); margin: 0 0 8px; line-height: 1.15;
  max-width: 800px;
}
.xrf-hero-title em { font-style: normal; color: var(--rd-accent); }
.xrf-hero-sub {
  font-size: 13px; color: var(--rd-fg-muted);
  margin: 0 0 32px; letter-spacing: 0.04em;
  max-width: 720px;
}
.xrf-hero-sub strong { color: var(--rd-fg); font-weight: 700; }

/* 搜索框 — 大、宽、突出 */
.xrf-search-form { margin: 0 0 24px; }
.xrf-search-input-wrap {
  display: flex; align-items: center;
  background: #fff;
  border: 2px solid var(--rd-fg);
  transition: border-color .15s, box-shadow .15s;
  max-width: 900px;
}
.xrf-search-input-wrap:focus-within {
  border-color: var(--rd-accent);
  box-shadow: 0 0 0 4px rgba(255,87,34,0.1);
}
.xrf-search-icon { margin: 0 16px; color: var(--rd-fg-muted); flex-shrink: 0; }
.xrf-search-input-wrap input {
  flex: 1; border: 0; padding: 20px 0; font-size: 18px;
  outline: none; background: transparent;
  font-family: 'Inter', system-ui, monospace; color: var(--rd-fg);
  font-weight: 500; letter-spacing: 0.02em;
}
.xrf-search-input-wrap input::placeholder { color: #aaa; font-weight: 400; }
.xrf-search-clear {
  width: 36px; height: 36px; background: transparent; border: 0;
  cursor: pointer; color: var(--rd-fg-muted);
  font-size: 22px; line-height: 1; margin-right: 4px;
}
.xrf-search-clear:hover { color: var(--rd-fg); }
.xrf-search-submit {
  background: var(--rd-fg); color: #fff; border: 0;
  padding: 0 32px; height: 64px;
  font-size: 13px; font-weight: 700; letter-spacing: 0.18em;
  text-transform: uppercase; cursor: pointer;
  font-family: inherit;
  display: flex; align-items: center; gap: 10px;
  transition: background .15s;
  flex-shrink: 0;
}
.xrf-search-submit:hover { background: var(--rd-accent); }
.xrf-search-submit svg { width: 16px; height: 16px; }

/* 快速 chips */
.xrf-quick {
  display: flex; align-items: center; flex-wrap: wrap; gap: 6px;
  margin-bottom: 32px; max-width: 900px;
}
.xrf-quick-label {
  font-size: 11px; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--rd-fg-muted);
}
.xrf-quick-divider {
  width: 1px; height: 16px; background: var(--rd-rule);
  margin: 0 8px;
}
.xrf-quick-chip {
  background: transparent; border: 1px solid var(--rd-rule);
  padding: 5px 12px; font-size: 12px; cursor: pointer;
  color: var(--rd-fg); font-family: 'Inter', monospace;
  font-weight: 500; letter-spacing: 0.02em;
  transition: all .15s;
}
.xrf-quick-chip:hover {
  background: var(--rd-fg); color: #fff;
  border-color: var(--rd-fg);
}

/* 紧凑 stats */
.xrf-stats-mini {
  display: flex; gap: 48px;
  padding-top: 20px; border-top: 1px solid var(--rd-rule);
  max-width: 900px;
}
.xrf-stats-mini > div {
  display: flex; align-items: baseline; gap: 8px;
}
.xrf-stats-mini strong {
  font-family: 'Inter', monospace; font-size: 22px;
  font-weight: 800; color: var(--rd-fg); letter-spacing: -0.02em;
}
.xrf-stats-mini span {
  font-size: 10px; font-weight: 700; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--rd-fg-muted);
}

@media (max-width: 720px) {
  .xrf-hero-title { font-size: 24px; }
  .xrf-search-input-wrap input { font-size: 14px; padding: 16px 0; }
  .xrf-search-submit { height: 56px; padding: 0 20px; }
  .xrf-stats-mini { gap: 24px; flex-wrap: wrap; }
}