/* ============================================================
   苏州以矿液压 — Modern Editorial Design System
   ============================================================ */

/* ---------- CSS Variables ---------- */
:root {
  /* Brand — 统一为 A 套海军蓝 */
  --brand: #1e619b;
  --brand-hover: #174f92;
  --brand-muted: #e3eef8;

  /* Neutrals — 蓝灰表面 */
  --bg: #fafafa;
  --bg-muted: #f4f6f8;
  --bg-elevated: #ffffff;
  --border: #dde4ec;
  --border-hover: #c8d6e5;

  /* Text */
  --text-primary: #183454;
  --text-secondary: #526b84;
  --text-muted: #74869a;

  /* Functional */
  --success: #16a34a;
  --warning: #d97706;
  --error: #dc2626;

  /* Spacing — 4px grid */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Radius */
  --radius-sm: 6px;
  --radius-btn: 10px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  /* Type scale — Major Third 1.250 */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.25rem;
  --text-xl: 1.563rem;
  --text-2xl: 1.953rem;
  --text-3xl: 2.441rem;
  --text-4xl: 3.052rem;

  /* Transitions */
  --ease-out: 0.2s ease-out;
  --ease-in-out: 0.3s ease-in-out;

  /* Container */
  --container-max: 1200px;
}

/* ---------- Dark Mode ----------
   统一到 A 套后全站固定浅色，不再跟随系统深色偏好。
   （历史原因曾有 prefers-color-scheme 变量与多段覆盖，已移除。） */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul { list-style: none; }

/* Keep labels available to screen readers without duplicating visible form copy. */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 10px 24px;
  border-radius: var(--radius-btn);
  font-weight: 600;
  font-size: var(--text-sm);
  cursor: pointer;
  transition: all var(--ease-out);
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--brand);
  color: #fff;
}
.btn-primary:hover {
  background: var(--brand-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(30, 97, 155, 0.28);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--text-primary);
  color: var(--text-primary);
}
.btn-outline:hover {
  background: var(--text-primary);
  color: var(--bg);
}

.btn-lg {
  padding: 14px 32px;
  font-size: var(--text-base);
  border-radius: var(--radius-btn);
}

/* ---------- Navigation ---------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 250, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--ease-out);
}

.navbar.scrolled {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.logo h1 {
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.nav-menu {
  display: flex;
  gap: var(--space-xl);
  align-items: center;
}

.nav-language {
  padding-left: var(--space-md);
  border-left: 1px solid var(--border);
}

.nav-language .nav-link {
  color: var(--brand);
  font-weight: 600;
}

a.hero-tag { text-decoration: none; }

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--ease-out);
  position: relative;
}
.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--brand);
  border-radius: 1px;
}

/* Admin login btn — subtle */
.admin-login-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-md);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-muted);
  border: 1px solid var(--border);
  background: transparent;
  transition: all var(--ease-out);
}
.admin-login-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}
.admin-login-btn svg {
  width: 14px;
  height: 14px;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: all var(--ease-out);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ---------- Hero (new, replaces carousel) ---------- */
.hero {
  padding: 120px 0 100px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 40%, rgba(30, 97, 155, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
}

.hero h1 {
  font-size: var(--text-4xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}

.hero p {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.hero-tags {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  justify-content: center;
  margin-top: var(--space-2xl);
}

.hero-tag {
  font-size: var(--text-xs);
  color: var(--text-muted);
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: var(--bg-elevated);
}

/* Old carousel — hidden */
.carousel-section { display: none; }

/* ---------- Page Header (sub-pages) ---------- */
.page-header {
  padding: 80px 0 60px;
  text-align: center;
  background: var(--bg-muted);
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.page-header p {
  font-size: var(--text-base);
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

.page-header-tags {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  margin-top: var(--space-lg);
}
.tag-separator {
  width: 6px;
  height: 6px;
  background: var(--border-hover);
  border-radius: 50%;
}

/* ---------- Section Header ---------- */
.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-header h2 {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.section-subtitle {
  font-size: var(--text-base);
  color: var(--text-muted);
}

/* ---------- Product Cards Grid (products.html) ---------- */
.products { padding: 80px 0; }

/* ---------- Homepage Model Search & SEO Entrances ---------- */
.model-search-panel {
  max-width: 720px;
  margin: var(--space-xl) 0;
  padding: var(--space-lg);
  background: color-mix(in srgb, var(--bg-elevated) 92%, transparent);
  border: 1px solid color-mix(in srgb, var(--border) 82%, transparent);
  border-radius: var(--radius-lg);
}

.model-search-copy h2 {
  margin: 0 0 var(--space-xs);
  font-size: var(--text-lg);
}

.model-search-copy p {
  margin: 0 0 var(--space-md);
  font-size: var(--text-sm);
}

.model-search-form {
  display: flex;
  gap: var(--space-sm);
}

.model-search-form input {
  min-width: 0;
  flex: 1;
  padding: 11px 12px;
  color: var(--text-primary);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font: inherit;
}

.model-search-form input:focus {
  outline: 0;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-muted);
}

.model-search-form button {
  padding: 11px 18px;
  color: #fafafa;
  background: var(--brand);
  border: 1px solid var(--brand);
  border-radius: var(--radius-md);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--ease-out), transform var(--ease-out);
}

.model-search-form button:hover { background: var(--brand-hover); }
.model-search-form button:active { transform: scale(0.98); }

.model-search-links {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-sm);
  font-size: var(--text-sm);
}

.model-search-links a { color: var(--brand); }

/* ---------- Model Directory ---------- */
body.model-directory-body {
  --bg: #fafafa;
  --bg-muted: #f4f7fa;
  --bg-elevated: #ffffff;
  --border: #d9e1e8;
  --border-hover: #bdcbd8;
  --text-primary: #183454;
  --text-secondary: #526b84;
  --text-muted: #74869a;
  --brand-muted: #dceafb;
  background: #fafafa;
  color: #183454;
}

/* Brand and category listing pages stay light in every OS color preference. */
body.listing-page-body {
  --bg: #fafafa;
  --bg-muted: #f4f7fa;
  --bg-elevated: #ffffff;
  --border: #d9e1e8;
  --border-hover: #bdcbd8;
  --text-primary: #183454;
  --text-secondary: #526b84;
  --text-muted: #74869a;
  --brand-muted: #dceafb;
  background: #fafafa;
  color: #183454;
}

body.listing-page-body .site-header.navbar { background: rgba(255, 255, 255, .94); border-bottom-color: rgba(27, 61, 97, .10); }
body.listing-page-body .site-logo-link,
body.listing-page-body .site-header .nav-link,
body.listing-page-body .site-header .nav-products-toggle { color: #244764; }
body.listing-page-body .site-logo-subtitle,
body.listing-page-body .nav-language-switch { color: #60738a; }

/* Search results use the same light storefront surface as listing pages. */
body.search-page-body {
  --bg: #fafafa;
  --bg-muted: #f4f7fa;
  --bg-elevated: #ffffff;
  --border: #d9e1e8;
  --border-hover: #bdcbd8;
  --text-primary: #183454;
  --text-secondary: #526b84;
  --text-muted: #74869a;
  --brand-muted: #dceafb;
  background: #fafafa;
  color: #183454;
}

body.search-page-body .site-header.navbar { background: rgba(255, 255, 255, .94); border-bottom-color: rgba(27, 61, 97, .10); }
body.search-page-body .site-logo-link,
body.search-page-body .site-header .nav-link,
body.search-page-body .site-header .nav-products-toggle { color: #244764; }
body.search-page-body .site-logo-subtitle,
body.search-page-body .nav-language-switch { color: #60738a; }

.search-page { background: var(--bg); }
.search-page-hero { padding: 72px 0 52px; background: #f3f7fc; border-bottom: 1px solid var(--border); }
.search-page-kicker { margin: 0 0 10px; color: var(--brand); font-size: var(--text-xs); font-weight: 700; letter-spacing: .12em; }
.search-page-hero h1 { margin: 0; color: #16365c; font-size: clamp(2rem, 4vw, 3.15rem); letter-spacing: -.04em; }
.search-page-hero h1 + p { margin: 14px 0 0; color: var(--text-secondary); font-size: var(--text-lg); }
.search-directory-link { display: inline-flex; gap: 8px; margin-top: 18px; padding-bottom: 5px; border-bottom: 1px solid currentColor; color: var(--brand); font-weight: 700; }
.search-directory-link span { transition: transform var(--ease-out); }
.search-directory-link:hover span { transform: translateX(4px); }
.search-form { display: flex; max-width: 760px; margin-top: 28px; border: 1px solid var(--border); background: var(--bg-elevated); box-shadow: 0 8px 24px rgba(24, 56, 88, .075); }
.search-form input { min-width: 0; flex: 1; border: 0; padding: 16px 18px; color: var(--text-primary); background: transparent; font: inherit; }
.search-form input:focus { outline: 2px solid var(--brand-muted); outline-offset: -2px; }
.search-form button { min-width: 126px; border: 0; padding: 0 22px; color: #fafafa; background: var(--brand); font: inherit; font-weight: 700; cursor: pointer; transition: background var(--ease-out); }
.search-form button:hover { background: var(--brand-hover); }
.search-results { min-height: 270px; padding: 56px 0 80px; }
.search-result-list { display: grid; gap: var(--space-sm); }
.search-result-card { display: flex; justify-content: space-between; gap: var(--space-lg); padding: 20px; border: 1px solid var(--border); background: var(--bg-elevated); color: inherit; transition: border-color var(--ease-out), transform var(--ease-out), box-shadow var(--ease-out); }
.search-result-card:hover { border-color: #93bde9; box-shadow: 0 10px 24px rgba(22,54,92,.07); transform: translateY(-2px); }
.search-result-card h2 { margin: 0; color: #16365c; font-size: var(--text-lg); }
.search-result-meta { margin: 5px 0 0; color: var(--text-muted); font-size: var(--text-sm); }
.search-result-meta span { margin: 0 4px; }
.search-result-description { margin: 10px 0 0; color: var(--text-secondary); font-size: var(--text-sm); line-height: 1.65; }
.search-result-status { align-self: flex-start; color: var(--text-muted); font-size: var(--text-xs); white-space: nowrap; }
.search-empty { padding: 40px 0; color: var(--text-secondary); text-align: center; }
.search-pagination { display: flex; justify-content: center; align-items: center; gap: var(--space-sm); margin-top: 32px; }
.search-pagination a, .search-pagination span { padding: 8px 14px; border: 1px solid var(--border); color: var(--text-secondary); font-size: var(--text-sm); }
.search-pagination a:hover { border-color: var(--brand); color: var(--brand); }

.listing-page { background: var(--bg); }
.listing-page-hero { padding: 72px 0 54px; background: #f3f7fc; border-bottom: 1px solid var(--border); }
.listing-page-hero .breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; color: var(--text-muted); font-size: var(--text-sm); }
.listing-page-hero .breadcrumb a:hover { color: var(--brand); }
.listing-page-kicker { margin: 28px 0 10px; color: var(--brand); font-size: var(--text-xs); font-weight: 700; letter-spacing: .12em; }
.listing-page-hero h1 { margin: 0; color: #16365c; font-size: clamp(2rem, 4vw, 3.15rem); letter-spacing: -.04em; }
.listing-page-hero > .container > p:last-of-type { max-width: 780px; margin: 18px 0 0; color: var(--text-secondary); font-size: var(--text-lg); line-height: 1.75; }
.listing-directory-link { display: inline-flex; gap: 8px; margin-top: 26px; padding-bottom: 5px; border-bottom: 1px solid currentColor; color: var(--brand); font-weight: 700; }
.listing-directory-link span { transition: transform var(--ease-out); }
.listing-directory-link:hover span { transform: translateX(4px); }
.listing-series { padding: 64px 0 80px; }
.listing-series-heading { margin-bottom: 24px; padding-bottom: 14px; border-bottom: 1px solid var(--border); }
.listing-series-heading p { margin: 0; color: var(--brand); font-size: var(--text-xs); font-weight: 700; letter-spacing: .1em; }
.listing-series-heading h2 { margin: 8px 0 0; color: #16365c; font-size: var(--text-2xl); }
.listing-series-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-md); }
.listing-series-card { min-height: 210px; padding: var(--space-lg); border: 1px solid var(--border); background: var(--bg-elevated); transition: border-color var(--ease-out), transform var(--ease-out), box-shadow var(--ease-out); }
.listing-series-card:hover { border-color: #93bde9; box-shadow: 0 10px 24px rgba(22,54,92,.07); transform: translateY(-2px); }
.listing-series-kicker { margin: 0; color: var(--text-muted); font-size: var(--text-xs); font-weight: 700; letter-spacing: .08em; }
.listing-series-card h2 { margin: var(--space-sm) 0 3px; color: #16365c; font-size: var(--text-xl); }
.listing-model-count { margin: 0; color: var(--brand); font-size: var(--text-sm); font-weight: 700; }
.listing-series-card ul { display: grid; gap: 4px; margin: var(--space-md) 0 0; }
.listing-series-card li a { display: flex; justify-content: space-between; gap: var(--space-sm); color: var(--text-secondary); font-size: var(--text-sm); }
.listing-series-card li a:hover { color: var(--brand); }
.listing-related { padding: 54px 0 76px; background: var(--bg-muted); }
.listing-related h2 { margin: 0; color: #16365c; font-size: var(--text-2xl); }
.listing-related-links { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: var(--space-sm); margin-top: var(--space-lg); }
.listing-related-links a { display: flex; justify-content: space-between; gap: var(--space-sm); padding: 14px; border: 1px solid var(--border); background: var(--bg-elevated); color: #16365c; font-weight: 700; }
.listing-related-links a:hover { border-color: var(--brand); color: var(--brand); }
.listing-empty { color: var(--text-secondary); }

.model-directory-page { background: var(--bg); }
.model-directory-hero,
.model-directory-series-hero { padding: 72px 0 48px; background: #f3f7fc; border-bottom: 1px solid var(--border); }
.model-directory-hero h1,
.model-directory-series-hero h1 { margin: 12px 0; color: #16365c; font-size: clamp(2rem, 4vw, 3.2rem); letter-spacing: -0.035em; }
.model-directory-hero > .container > p:last-of-type,
.model-directory-series-hero > .container > p:last-of-type { max-width: 720px; color: var(--text-secondary); }
.model-directory-kicker { color: var(--brand); font-size: var(--text-xs); font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.model-directory-search { display: flex; max-width: 720px; margin-top: var(--space-xl); border: 1px solid var(--border); background: var(--bg-elevated); }
.model-directory-search input { min-width: 0; flex: 1; border: 0; padding: 15px 16px; font: inherit; background: transparent; color: var(--text-primary); }
.model-directory-search input:focus { outline: 2px solid var(--brand-muted); outline-offset: -2px; }
.model-directory-search button { border: 0; padding: 0 22px; background: var(--brand); color: #fafafa; font: inherit; font-weight: 700; cursor: pointer; transition: background var(--ease-out); }
.model-directory-search button:hover { background: var(--brand-hover); }
.model-directory-content { padding: var(--space-2xl) 0 80px; }
.model-directory-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: var(--space-3xl); align-items: start; }
.model-directory-sidebar { position: sticky; top: 88px; border-top: 2px solid #16365c; padding-top: var(--space-md); }
.model-directory-sidebar > p { margin-bottom: var(--space-sm); color: var(--text-muted); font-size: var(--text-xs); font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.model-directory-sidebar nav { display: grid; }
.model-directory-brand-link { display: flex; justify-content: space-between; gap: var(--space-sm); padding: 10px 0; border-bottom: 1px solid var(--border); color: var(--text-secondary); font-weight: 600; transition: color var(--ease-out), padding-left var(--ease-out); }
.model-directory-brand-link:hover { color: var(--brand); padding-left: 4px; }
.model-directory-brand-link span { color: var(--text-muted); font-size: var(--text-xs); font-weight: 500; }
.model-directory-brand-panel + .model-directory-brand-panel { margin-top: 72px; }
.model-directory-brand-heading { display: flex; align-items: baseline; justify-content: space-between; border-bottom: 1px solid var(--border); margin-bottom: var(--space-lg); padding-bottom: var(--space-sm); }
.model-directory-brand-heading h2 { color: #16365c; font-size: var(--text-2xl); }
.model-directory-series-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-md); }
.model-directory-series-card { min-height: 230px; display: flex; flex-direction: column; padding: var(--space-lg); border: 1px solid var(--border); background: var(--bg-elevated); transition: border-color var(--ease-out), transform var(--ease-out), box-shadow var(--ease-out); }
.model-directory-series-card:hover { border-color: #93bde9; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(22,54,92,.07); }
.model-directory-series-meta { color: var(--text-muted); font-size: var(--text-xs); }
.model-directory-series-card h3 { margin: var(--space-sm) 0 2px; color: #16365c; font-size: var(--text-xl); }
.model-directory-model-count { color: var(--brand); font-size: var(--text-sm); font-weight: 700; }
.model-directory-series-card ul { display: grid; gap: 3px; margin: var(--space-md) 0; color: var(--text-secondary); font-size: var(--text-sm); }
.model-directory-series-card li a:hover { color: var(--brand); text-decoration: underline; }
.model-directory-explore { margin-top: auto; color: var(--brand); font-size: var(--text-sm); font-weight: 700; }
.model-directory-explore span { display: inline-block; transition: transform var(--ease-out); }
.model-directory-series-card:hover .model-directory-explore span { transform: translateX(4px); }
.model-directory-series-facts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-md); margin-top: var(--space-xl); }
.model-directory-series-facts div { border-left: 2px solid var(--brand); padding-left: var(--space-sm); }
.model-directory-series-facts dt { color: var(--text-muted); font-size: var(--text-xs); }
.model-directory-series-facts dd { margin: 2px 0 0; color: #16365c; font-weight: 700; }
.model-directory-models { padding: 64px 0; }
.model-directory-section-heading { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--space-lg); }
.model-directory-section-heading h2,
.model-directory-related h2 { color: #16365c; font-size: var(--text-2xl); }
.model-directory-section-heading > a { color: var(--brand); font-size: var(--text-sm); font-weight: 700; }
.model-directory-model-list { border-top: 1px solid var(--border); }
.model-directory-model-row { display: grid; grid-template-columns: 88px minmax(0, 1fr) auto; gap: var(--space-lg); align-items: center; padding: var(--space-md) 0; border-bottom: 1px solid var(--border); transition: background var(--ease-out), padding var(--ease-out); }
.model-directory-model-row:hover { background: #f7faff; padding-left: var(--space-sm); padding-right: var(--space-sm); }
.model-directory-model-preview { width: 88px; height: 72px; display: flex; align-items: center; justify-content: center; overflow: hidden; background: var(--bg-muted); color: var(--text-muted); font-size: var(--text-xs); }
.model-directory-model-preview img { width: 100%; height: 100%; object-fit: contain; }
.model-directory-model-main p,
.model-directory-model-main span { color: var(--text-muted); font-size: var(--text-xs); }
.model-directory-model-main h2 { margin: 2px 0; color: #16365c; font-size: var(--text-lg); }
.model-directory-model-main h2 a:hover { color: var(--brand); }
.model-directory-model-actions { display: grid; justify-items: end; gap: 3px; text-align: right; font-size: var(--text-sm); }
.model-directory-model-actions strong { color: var(--brand); }
.model-directory-model-actions > span { color: var(--text-muted); font-size: var(--text-xs); }
.model-directory-model-actions > a { color: #16365c; font-weight: 700; }
.model-directory-model-actions > a:hover { color: var(--brand); }
.model-directory-model-actions .model-directory-quote-link { display: none; color: var(--brand); }
.model-directory-model-row:hover .model-directory-quote-link { display: block; }
.model-directory-related { padding: 56px 0 80px; background: var(--bg-muted); }
.model-directory-related-links { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: var(--space-sm); margin-top: var(--space-lg); }
.model-directory-related-links a { display: flex; gap: var(--space-sm); align-items: center; justify-content: space-between; padding: 14px; border: 1px solid var(--border); background: var(--bg-elevated); color: #16365c; font-weight: 700; transition: border-color var(--ease-out); }
.model-directory-related-links a:hover { border-color: var(--brand); }
.model-directory-related-links span { color: var(--text-muted); font-size: var(--text-xs); font-weight: 500; }

@media (max-width: 768px) {
  .model-directory-hero,
  .model-directory-series-hero { padding: 44px 0 32px; }
  .model-directory-layout { grid-template-columns: 1fr; gap: var(--space-xl); }
  .model-directory-sidebar { position: static; overflow-x: auto; padding: 0 0 var(--space-sm); border-top: 0; }
  .model-directory-sidebar nav { display: flex; min-width: max-content; gap: var(--space-sm); }
  .model-directory-brand-link { padding: 8px 12px; border: 1px solid var(--border); background: var(--bg-elevated); }
  .model-directory-brand-panel + .model-directory-brand-panel { margin-top: 48px; }
  .model-directory-series-grid { grid-template-columns: 1fr; }
  .model-directory-series-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .model-directory-model-row { grid-template-columns: 64px minmax(0, 1fr); gap: var(--space-sm); }
  .model-directory-model-preview { width: 64px; height: 56px; }
  .model-directory-model-actions { grid-column: 2; justify-items: start; text-align: left; }
  .model-directory-model-actions .model-directory-quote-link { display: block; }
  .model-directory-search { display: grid; }
  .model-directory-search button { min-height: 48px; }
  .listing-page-hero { padding: 44px 0 36px; }
  .listing-page-hero > .container > p:last-of-type { font-size: var(--text-base); }
  .listing-series { padding: 44px 0 56px; }
  .listing-series-grid { grid-template-columns: 1fr; }
  .search-page-hero { padding: 44px 0 36px; }
  .search-page-hero h1 + p { font-size: var(--text-base); }
  .search-form { display: grid; }
  .search-form button { min-height: 48px; }
  .search-results { padding: 44px 0 56px; }
  .search-result-card { display: grid; gap: var(--space-sm); }
}

.core-brands,
.popular-models { padding: 64px 0; }

.capabilities { padding: 64px 0; background: var(--bg-muted); }

.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-md);
}

.capability-item {
  padding: var(--space-lg);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  transition: transform 0.2s ease-out, box-shadow 0.2s ease-out;
}
.capability-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 22px rgba(24, 56, 88, 0.08);
}

.capability-item h3 { margin: 0 0 var(--space-sm); font-size: var(--text-base); }
.capability-item p { margin: 0; color: var(--text-secondary); font-size: var(--text-sm); line-height: 1.7; }

.core-brands { background: var(--bg-muted); }

.core-brands-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--space-md);
}

.core-brand-link,
.popular-model-link {
  display: block;
  color: var(--text-primary);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color var(--ease-out), transform var(--ease-out), box-shadow var(--ease-out);
}

.core-brand-link {
  padding: var(--space-lg) var(--space-md);
  text-align: center;
  font-size: var(--text-lg);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 132px;
}

.core-brand-link img {
  display: block;
  max-height: 96px;
  max-width: 92%;
  object-fit: contain;
  margin: 0 auto;
}

.core-brand-link:hover,
.popular-model-link:hover {
  border-color: var(--brand);
  color: var(--brand);
  transform: translateY(-3px);
  box-shadow: 0 10px 22px rgba(24, 56, 88, 0.10);
}

.popular-models-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: var(--space-md);
}

.popular-model-link { padding: var(--space-md); }
.popular-model-link strong,
.popular-model-link span { display: block; }
.popular-model-link strong { margin-bottom: var(--space-xs); }
.popular-model-link span { color: var(--text-secondary); font-size: var(--text-sm); }

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
}

.product-card-link {
  display: block;
  transition: transform var(--ease-out);
}
.product-card-link:hover { transform: translateY(-4px); }

.product-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--ease-out);
}
.product-card-link:hover .product-card {
  box-shadow: 0 12px 26px rgba(24, 56, 88, 0.10);
}

.product-image {
  height: 220px;
  overflow: hidden;
  background: var(--bg-muted);
}
.product-image .image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.product-card-link:hover .product-image img {
  transform: scale(1.04);
}

.product-details {
  padding: var(--space-lg);
}

.product-details h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.product-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.product-specs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.spec-tag {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  background: var(--bg-muted);
  padding: 3px 10px;
  border-radius: 100px;
  border: 1px solid var(--border);
}

.product-application {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.product-link-btn {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--brand);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--ease-out);
}
.product-card-link:hover .product-link-btn { gap: 8px; }

/* ---------- Product Detail Layout (product-*.html) ---------- */
.product-detail-layout {
  padding: 60px 0;
}

.product-detail-container {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--space-xl);
  align-items: start;
}

/* Sidebar */
.product-detail-sidebar {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  position: sticky;
  top: 88px;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}

.product-detail-sidebar h3 {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
}

.brand-catalog-list li {
  margin-bottom: var(--space-xs);
}

.brand-catalog-item {
  display: block;
  padding: 10px 14px;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--ease-out);
  border-left: 2px solid transparent;
}
.brand-catalog-item:hover {
  background: var(--bg-muted);
  color: var(--text-primary);
  border-left-color: var(--brand);
}
.brand-catalog-item.active {
  background: var(--brand-muted);
  color: var(--brand);
  border-left-color: var(--brand);
  font-weight: 600;
}

/* Content area */
.product-detail-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.product-showcase-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  transition: box-shadow var(--ease-out);
}
.product-showcase-card:hover {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.product-showcase-text h4 {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.product-description {
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: var(--text-sm);
}
.product-description p { margin-bottom: var(--space-sm); }

.product-image-wrapper {
  width: 100%;
  height: 360px;
  background: var(--bg-muted);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
}
.product-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: var(--space-md);
}

.product-showcase-image {
  position: relative;
}

/* Product image gallery (in product-* pages) */
.product-image-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.product-image-slot {
  aspect-ratio: 1;
  background: var(--bg-muted);
  border: 2px dashed var(--border);
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
  transition: all var(--ease-out);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-image-slot:hover {
  border-color: var(--brand);
  border-style: solid;
}
.product-image-slot img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Product intro paragraph */
.product-intro {
  background: var(--bg-muted);
  border-left: 3px solid var(--brand);
  padding: var(--space-md) var(--space-lg);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

/* Product feature cards */
.product-feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-md);
}
.product-feature-card {
  background: var(--bg-muted);
  border-left: 3px solid var(--border);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-md) var(--space-lg);
  font-size: var(--text-sm);
  transition: border-color var(--ease-out);
}
.product-feature-card:hover {
  border-left-color: var(--brand);
}

/* Product spec tables */
.product-spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
  margin: var(--space-lg) 0;
}
.product-spec-table thead th {
  background: var(--bg-muted);
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 2px solid var(--border);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.product-spec-table tbody td {
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}
.product-spec-table tbody tr:nth-child(even) { background: var(--bg-muted); }
.product-spec-table tbody tr:hover { background: var(--brand-muted); }

/* Callout box */
.product-callout {
  background: var(--bg-muted);
  border-left: 3px solid var(--text-primary);
  padding: var(--space-lg);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: var(--space-lg) 0;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.8;
}

/* Product back button top-right */
.product-back-btn-top-right {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: all var(--ease-out);
}
.product-back-btn-top-right:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
}
.product-back-btn-top-right svg {
  width: 16px;
  height: 16px;
}

/* ---------- About Page ---------- */
.about { padding: 80px 0; }

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}
.about-text h2 {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}
.about-text p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}
.about-image img {
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.about-stats {
  display: flex;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}
.about-stat {
  text-align: center;
}
.about-stat-number {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--brand);
  letter-spacing: -0.02em;
}
.about-stat-label {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

/* ---------- Honors ---------- */
.honors { padding: 80px 0; background: var(--bg-muted); }

.honors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-lg);
}
.honor-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--ease-out);
}
.honor-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 26px rgba(24, 56, 88, 0.10);
}
.honor-placeholder {
  width: 100%;
  height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-muted);
  color: var(--text-muted);
  font-size: var(--text-sm);
}

/* ---------- Brands ---------- */
.brands { padding: 80px 0; }

.brands-large-wrapper { margin-bottom: var(--space-2xl); }

.brands-large-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-lg);
  justify-items: center;
}

.brand-item-large {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  min-height: 140px;
  width: 100%;
  transition: all var(--ease-out);
}
.brand-item-large:hover {
  box-shadow: 0 12px 26px rgba(24, 56, 88, 0.10);
  transform: translateY(-3px);
}

.brand-logo { display: flex; align-items: center; justify-content: center; }
.brand-logo img { max-width: 100%; max-height: 80px; object-fit: contain; }

.brands-small-wrapper {}

.brands-small-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: var(--space-md);
  justify-items: center;
}

.brand-item-small {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  min-height: 80px;
  width: 100%;
  transition: all var(--ease-out);
}
.brand-item-small:hover {
  box-shadow: 0 8px 18px rgba(24, 56, 88, 0.08);
  transform: translateY(-2px);
}

/* ---------- Service Process ---------- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
  counter-reset: step;
}
.process-step {
  text-align: center;
  position: relative;
  counter-increment: step;
}
.process-step::before {
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin: 0 auto var(--space-md);
  background: var(--brand);
  color: #fff;
  border-radius: 50%;
  font-weight: 700;
  font-size: var(--text-sm);
}
.process-step h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}
.process-step p {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

/* ---------- Contact ---------- */
.contact { padding: 80px 0; }

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}

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

.contact-item {
  display: flex;
  gap: var(--space-md);
  align-items: start;
}

.contact-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-muted);
  border-radius: var(--radius-md);
  color: var(--brand);
}
.contact-icon svg {
  width: 22px;
  height: 22px;
}

.contact-item h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}
.contact-item p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

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

.call-button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--brand);
  color: #fff;
  border-radius: var(--radius-md);
  font-size: var(--text-xs);
  font-weight: 600;
  transition: all var(--ease-out);
}
.call-button:hover {
  background: var(--brand-hover);
}
.call-button svg {
  width: 14px;
  height: 14px;
}

/* Contact Form */
.contact-form {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

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

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.required-star { color: var(--error); margin-left: 2px; }

.form-group input,
.form-group textarea,
.form-group select,
.form-select {
  width: 100%;
  padding: 10px 14px;
  font-size: var(--text-sm);
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  transition: all var(--ease-out);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus,
.form-select:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(30, 97, 155, 0.12);
}
.form-group input.error {
  border-color: var(--error);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.08);
}
.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* Form messages */
.form-message {
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  margin-bottom: var(--space-md);
  transition: opacity var(--ease-out), transform var(--ease-out);
}
.form-message-success {
  background: #dcfce7;
  color: #166534;
  border: 1px solid #bbf7d0;
}
.form-message-error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}
.form-message-info {
  background: #dbeafe;
  color: #1e40af;
  border: 1px solid #bfdbfe;
}

/* ---------- Map ---------- */
.map-section { margin-top: var(--space-3xl); }

.map-container {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-lg);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.map-wrapper {
  height: 360px;
  overflow: hidden;
}
.map-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.map-info {
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.map-info h4 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}
.map-info p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

.map-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.map-link {
  display: block;
  padding: 10px 16px;
  text-align: center;
  background: var(--bg-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--text-primary);
  transition: all var(--ease-out);
}
.map-link:hover {
  background: var(--text-primary);
  color: var(--bg);
  border-color: var(--text-primary);
}

/* ---------- News ---------- */
.news { padding: 80px 0; }

.news-categories {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
}
.news-filter {
  padding: 8px 20px;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: var(--bg-elevated);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--ease-out);
  font-family: inherit;
}
.news-filter:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
}
.news-filter.active {
  background: var(--text-primary);
  color: var(--bg);
  border-color: var(--text-primary);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
}

.news-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--ease-out);
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 26px rgba(24, 56, 88, 0.10);
}

.news-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-md);
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.news-badge {
  padding: 2px 10px;
  border-radius: 100px;
  font-size: var(--text-xs);
  background: var(--brand-muted);
  color: var(--brand);
  font-weight: 500;
}

.news-card h3 {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  line-height: 1.4;
}

.news-excerpt {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.news-actions {
  display: flex;
  justify-content: flex-end;
}

.news-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--brand);
  transition: gap var(--ease-out);
}
.news-link:hover { gap: 8px; }

.news-load-more {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 12px 28px;
  background: var(--text-primary);
  color: var(--bg);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: var(--text-sm);
  border: none;
  cursor: pointer;
  transition: all var(--ease-out);
  font-family: inherit;
}
.news-load-more:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* ---------- Image Modal (honors/about) ---------- */
.image-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.92);
  cursor: pointer;
  backdrop-filter: blur(4px);
}
.image-modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
}
.image-modal-content {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-md);
}
.image-modal-close {
  position: absolute;
  top: var(--space-xl);
  right: var(--space-xl);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  color: #fff;
  font-size: var(--text-xl);
  cursor: pointer;
  transition: background var(--ease-out);
}
.image-modal-close:hover { background: rgba(255, 255, 255, 0.2); }

/* ---------- Footer ---------- */
.footer {
  padding: 60px 0 24px;
  background: var(--bg-muted);
  border-top: 1px solid var(--border);
}

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

.footer-section h3 {
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.footer-section h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.footer-section p {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: var(--space-xs);
}

.footer-section ul li { margin-bottom: var(--space-sm); }

.footer-section a {
  font-size: var(--text-sm);
  color: var(--text-muted);
  transition: color var(--ease-out);
}
.footer-section a:hover { color: var(--text-primary); }

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
  font-size: var(--text-xs);
  color: var(--text-muted);
}

/* ---------- Scroll Animations ---------- */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero h1 { font-size: var(--text-3xl); }
  .product-detail-container { grid-template-columns: 200px 1fr; }
  .product-showcase-card { grid-template-columns: 1fr; }
  .product-image-wrapper { height: 280px; }
  .brands-large-grid { grid-template-columns: repeat(3, 1fr); }
  .brands-small-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 768px) {
  .hamburger { display: flex; }

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 64px;
    flex-direction: column;
    background: var(--bg-elevated);
    width: 100%;
    text-align: center;
    padding: var(--space-xl);
    gap: 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: left var(--ease-in-out);
  }
  .nav-menu.active { left: 0; }
  .nav-menu li { padding: var(--space-md) 0; }
  .nav-language { padding-left: 0; border-left: 0; }
  .nav-menu .admin-login-btn { justify-content: center; }

  .hero { padding: 80px 0 60px; }
  .hero h1 { font-size: var(--text-2xl); }
  .hero p { font-size: var(--text-base); }

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

  .product-detail-container {
    grid-template-columns: 1fr;
  }
  .product-detail-sidebar {
    position: static;
    max-height: none;
  }
  .brand-catalog-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
  }
  .brand-catalog-list li { margin-bottom: 0; }
  .brand-catalog-item { padding: 8px 12px; font-size: var(--text-xs); }

  .map-container { grid-template-columns: 1fr; }
  .map-wrapper { height: 240px; }

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

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

  .core-brands-grid { grid-template-columns: repeat(3, 1fr); }
  .capabilities-grid { grid-template-columns: repeat(2, 1fr); }

  .brands-large-grid { grid-template-columns: repeat(2, 1fr); }
  .brands-small-grid { grid-template-columns: repeat(3, 1fr); }

  .process-steps { grid-template-columns: 1fr; }

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

  .page-header { padding: 60px 0 40px; }
  .page-header h1 { font-size: var(--text-2xl); }
}

@media (max-width: 480px) {
  .hero { padding: 60px 0 40px; }
  .hero h1 { font-size: var(--text-xl); }
  .hero-buttons { flex-direction: column; width: 100%; }
  .hero-buttons .btn { width: 100%; text-align: center; justify-content: center; }
  .model-search-form { flex-direction: column; }
  .model-search-form button { width: 100%; }
  .core-brands-grid { grid-template-columns: repeat(2, 1fr); }
  .capabilities-grid { grid-template-columns: 1fr; }

  .section-header h2 { font-size: var(--text-xl); }

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

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

/* ========================================================================== */
/* UI Phase 1 — shared home header and model-first hero (zh + en)            */
/* ========================================================================== */
.site-header.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  border-color: #e7eaee;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.site-header .nav-wrapper {
  min-height: 76px;
  height: auto;
  gap: 28px;
}

.site-logo { flex: 0 0 auto; min-width: 156px; }
.site-logo-link { display: inline-flex; flex-direction: column; gap: 1px; color: #11233c; }
.site-logo-name { font-size: 1.18rem; font-weight: 800; letter-spacing: 0.08em; line-height: 1.15; }
.site-logo-subtitle { color: #6b7a8d; font-family: 'Segoe UI', sans-serif; font-size: 0.56rem; font-weight: 700; letter-spacing: 0.17em; }

.site-header .nav-menu {
  flex: 1 1 auto;
  justify-content: center;
  gap: clamp(14px, 2vw, 29px);
}

.site-header .nav-link,
.site-header .nav-products-toggle {
  color: #31445d;
  font-size: 0.87rem;
  font-weight: 600;
  white-space: nowrap;
}

.site-header .nav-products-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0;
  font-family: inherit;
  background: transparent;
  border: 0;
  cursor: pointer;
}

.site-header .nav-products-toggle span { color: #7990aa; transition: transform var(--ease-out); }
.site-header .nav-products-item:hover .nav-products-toggle span,
.site-header .nav-products-item.open .nav-products-toggle span { transform: rotate(180deg); }
.site-header .nav-link:hover,
.site-header .nav-products-toggle:hover { color: var(--brand); }

/* 导航 hover 下划线动效（与当前页下划线呼应） */
.site-header .nav-link::after,
.site-header .nav-products-toggle::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -5px;
  height: 2px;
  background: var(--brand);
  border-radius: 1px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease-out;
}
.site-header .nav-link:hover::after,
.site-header .nav-products-toggle:hover::after,
.site-header .nav-link.active::after,
.site-header .nav-products-toggle.active::after { transform: scaleX(1); }

.nav-products-item { position: relative; }
.nav-mega-menu {
  position: absolute;
  top: 100%;
  left: -28px;
  z-index: 120;
  display: grid;
  grid-template-columns: minmax(230px, 1.25fr) minmax(205px, 1fr);
  width: 530px;
  padding: 24px;
  border: 1px solid #dde4ec;
  background: #ffffff;
  box-shadow: 0 18px 48px rgba(17, 35, 60, 0.13);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 160ms ease-out, visibility 160ms ease-out, transform 160ms ease-out;
}
.nav-products-item:hover .nav-mega-menu,
.nav-products-item:focus-within .nav-mega-menu,
.nav-products-item.open .nav-mega-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-mega-categories { padding-right: 22px; border-right: 1px solid #e8edf2; }
.nav-mega-label { margin: 0 0 12px; color: #8492a4; font-size: 0.7rem; font-weight: 800; letter-spacing: 0.12em; }
.nav-mega-categories a { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; padding: 7px 0; color: #17314f; font-size: 0.91rem; font-weight: 700; }
.nav-mega-categories a span { color: #8795a6; font-family: 'Segoe UI', sans-serif; font-size: 0.69rem; font-weight: 500; }
.nav-mega-categories a:hover, .nav-mega-brand-list a:hover { color: var(--brand); }
.nav-mega-brands { padding-left: 22px; }
.nav-mega-brand-list { display: flex; flex-wrap: wrap; gap: 8px 14px; }
.nav-mega-brand-list a { color: #40536b; font-family: 'Segoe UI', sans-serif; font-size: 0.82rem; font-weight: 700; }
.nav-mega-search { display: inline-flex; gap: 6px; margin-top: 28px; padding-top: 11px; color: var(--brand); border-top: 1px solid #e8edf2; font-size: 0.82rem; font-weight: 800; }
.nav-mega-search span { transition: transform var(--ease-out); }
.nav-mega-search:hover span { transform: translateX(4px); }

.nav-actions { display: flex; align-items: center; gap: 15px; flex: 0 0 auto; }
.nav-search-button { display: inline-grid; width: 32px; height: 32px; place-items: center; color: #34506f; border: 1px solid transparent; transition: color var(--ease-out), border-color var(--ease-out), background var(--ease-out); }
.nav-search-button svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-width: 1.8; }
.nav-search-button:hover { color: var(--brand); border-color: #cbd8e7; background: #f7faff; }
.nav-language-switch { display: inline-flex; gap: 4px; color: #607188; font-family: 'Segoe UI', sans-serif; font-size: 0.76rem; white-space: nowrap; }
.nav-language-switch strong { color: #193b67; }
.nav-quote-button { display: inline-flex; align-items: center; gap: 6px; padding: 9px 13px; color: #fff; background: #174f92; border: 1px solid #174f92; font-size: 0.8rem; font-weight: 700; transition: background var(--ease-out), transform var(--ease-out); white-space: nowrap; }
.nav-quote-button span { transition: transform var(--ease-out); }
.nav-quote-button:hover { background: #0f417d; transform: translateY(-1px); }
.nav-quote-button:hover span { transform: translateX(3px); }
.nav-mobile-actions { display: none; }

.home-hero.hero {
  min-height: 680px;
  padding: 76px 0 0;
  overflow: hidden;
  text-align: left;
  background: linear-gradient(125deg, #f8fafc 0%, #ffffff 50%, #eff5fb 100%);
}
.home-hero.hero::before { inset: auto -15% -35%; width: 78%; height: 85%; background: radial-gradient(circle, rgba(23, 79, 146, 0.10), transparent 66%); }
.hero-layout { position: relative; display: grid; grid-template-columns: minmax(0, 0.96fr) minmax(420px, 1.04fr); align-items: center; gap: clamp(24px, 4vw, 76px); min-height: 510px; }
.home-hero .hero-content { max-width: 610px; margin: 0; }
.hero-eyebrow { display: inline-flex; align-items: center; gap: 9px; margin: 0 0 17px; color: #1e639f; font-size: 0.73rem; font-weight: 800; letter-spacing: 0.16em; }
.hero-eyebrow::before { width: 24px; height: 1px; background: currentColor; content: ''; }
.home-hero .hero-content h1 { margin: 0; color: #122a46; font-size: clamp(2.55rem, 4.5vw, 4.7rem); font-weight: 800; letter-spacing: -0.065em; line-height: 1.03; }
.home-hero .hero-content h1 span { display: block; }
.home-hero .hero-intro { max-width: 555px; margin: 22px 0 0; color: #526983; font-size: 1.04rem; line-height: 1.85; }

.home-hero .model-search-panel { max-width: 584px; margin: 27px 0 0; padding: 0; background: transparent; border: 0; border-radius: 0; }
.home-hero .model-search-copy h2 { color: #1b3551; font-size: 0.94rem; font-weight: 800; }
.home-hero .model-search-copy p { display: none; }
.home-hero .model-search-form { gap: 0; max-width: 584px; margin-top: 10px; overflow: hidden; border: 1px solid #cbd7e3; background: #fff; box-shadow: 0 9px 24px rgba(28, 52, 84, 0.07); }
.home-hero .model-search-form input { height: 54px; padding: 0 17px; border: 0; border-radius: 0; font-size: 0.92rem; }
.home-hero .model-search-form input:focus { box-shadow: inset 0 0 0 2px #2b70af; }
.home-hero .model-search-form button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-width: 130px; padding: 0 18px; color: #fff; border: 0; border-radius: 0; background: #1b5f9d; }
.home-hero .model-search-form button:hover { background: #124d85; }
.home-hero .model-search-links { flex-wrap: wrap; gap: 9px 13px; margin-top: 12px; color: #73849a; font-size: 0.75rem; }
.home-hero .model-search-links span { color: #77889c; }
.home-hero .model-search-links a { color: #315d8d; border-bottom: 1px solid transparent; }
.home-hero .model-search-links a:hover { border-color: currentColor; }
.home-hero .hero-buttons { justify-content: flex-start; margin-top: 27px; }
.home-hero .btn { border-radius: var(--radius-btn); }
.home-hero .btn-primary { background: #174f92; }
.home-hero .btn-primary:hover { background: #0f417d; box-shadow: none; }
.home-hero .btn-primary span { transition: transform var(--ease-out); }
.home-hero .btn-primary:hover span { transform: translateX(4px); }
.home-hero .btn-outline { border-width: 1px; border-color: #8fa4ba; color: #2e4968; }
.home-hero .btn-outline:hover { background: #2e4968; color: #fff; }

.hero-product-stage { position: relative; display: grid; min-height: 500px; place-items: center; isolation: isolate; }
.hero-product-orbit { position: absolute; width: min(28vw, 380px); aspect-ratio: 1; border: 1px solid rgba(63, 112, 162, 0.20); border-radius: 50%; box-shadow: 0 0 0 44px rgba(74, 131, 187, 0.045), 0 0 0 90px rgba(74, 131, 187, 0.025); }
.hero-product-stage::before, .hero-product-stage::after { position: absolute; z-index: -1; content: ''; }
.hero-product-stage::before { right: 3%; bottom: 14%; width: 70%; height: 26%; background: radial-gradient(ellipse, rgba(28, 64, 102, .2), transparent 69%); filter: blur(9px); }
.hero-product-stage::after { top: 22%; right: 10%; width: 135px; height: 135px; border: 1px solid rgba(58, 108, 156, 0.12); }
.hero-product-image { position: relative; z-index: 1; width: min(100%, 520px); max-height: 455px; object-fit: contain; filter: drop-shadow(0 24px 20px rgba(18, 42, 70, 0.17)); }
.hero-callout { position: absolute; z-index: 2; display: grid; max-width: 162px; padding-left: 16px; color: #5f7893; font-size: 0.72rem; line-height: 1.35; transition: color var(--ease-out); }
.hero-callout::before { position: absolute; top: 9px; left: -53px; width: 58px; height: 1px; background: currentColor; content: ''; opacity: 0.42; transform-origin: right; transition: opacity var(--ease-out), transform var(--ease-out); }
.hero-callout-dot { position: absolute; top: 6px; left: -5px; width: 7px; height: 7px; border-radius: 50%; background: #2c72b0; box-shadow: 0 0 0 4px rgba(44, 114, 176, 0.10); transition: transform var(--ease-out), box-shadow var(--ease-out); }
.hero-callout strong { color: #315576; font-size: 0.77rem; }
.hero-callout small { color: inherit; font-size: 0.68rem; }
.hero-callout:hover { color: #1d5d99; }
.hero-callout:hover::before { opacity: 0.9; transform: scaleX(1.1); }
.hero-callout:hover .hero-callout-dot { transform: scale(1.25); box-shadow: 0 0 0 6px rgba(44, 114, 176, 0.12); }
.hero-callout-one { top: 17%; left: 3%; }
.hero-callout-two { top: 44%; right: 0; }
.hero-callout-three { bottom: 15%; left: 7%; }
.hero-callout-four { right: 9%; bottom: 5%; }

.hero-capability-bar { position: relative; z-index: 3; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid #dbe4ed; }
.hero-capability-bar > div { display: flex; align-items: center; gap: 11px; min-height: 86px; padding: 14px 18px 14px 0; border-right: 1px solid #dbe4ed; }
.hero-capability-bar > div + div { padding-left: 18px; }
.hero-capability-bar > div:last-child { border-right: 0; }
.hero-capability-mark { color: #9eb0c4; font-family: 'Segoe UI', sans-serif; font-size: 0.67rem; font-weight: 800; }
.hero-capability-bar p { margin: 0; line-height: 1.35; }
.hero-capability-bar strong, .hero-capability-bar small { display: block; }
.hero-capability-bar strong { color: #284561; font-size: 0.78rem; }
.hero-capability-bar small { margin-top: 3px; color: #7d8fa3; font-size: 0.68rem; }

@media (max-width: 1024px) {
  .site-header .nav-menu { gap: 14px; }
  .site-header .nav-link, .site-header .nav-products-toggle { font-size: 0.79rem; }
  .nav-actions { gap: 10px; }
  .nav-quote-button { padding-inline: 10px; }
  .hero-layout { grid-template-columns: minmax(0, 1fr) minmax(350px, .9fr); }
  .hero-callout { transform: scale(.88); }
}

@media (max-width: 768px) {
  .site-header .nav-wrapper { min-height: 64px; }
  .site-logo { min-width: 0; }
  .site-logo-name { font-size: 1.02rem; }
  .site-header .nav-actions { display: none; }
  .site-header .hamburger { display: flex; }
  .site-header .nav-menu { position: absolute; top: 100%; left: 0; display: none; width: 100%; max-height: calc(100vh - 64px); padding: 10px 24px 20px; overflow-y: auto; background: #fff; box-shadow: 0 18px 30px rgba(20, 45, 73, 0.14); text-align: left; }
  .site-header .nav-menu.active { display: block; }
  .site-header .nav-menu > li { padding: 0; border-bottom: 1px solid #e7edf3; }
  .site-header .nav-menu > li:last-child { border-bottom: 0; }
  .site-header .nav-link, .site-header .nav-products-toggle { display: flex; width: 100%; justify-content: space-between; padding: 15px 0; color: #25415e; font-size: .93rem; }
  .nav-products-item { position: static; }
  .nav-mega-menu { position: static; display: none; grid-template-columns: 1fr; width: auto; padding: 0 0 16px; border: 0; box-shadow: none; opacity: 1; visibility: visible; transform: none; }
  .nav-products-item:hover .nav-mega-menu, .nav-products-item:focus-within .nav-mega-menu { display: none; }
  .nav-products-item.open .nav-mega-menu { display: grid; }
  .nav-mega-categories, .nav-mega-brands { padding: 8px 0 0; border: 0; }
  .nav-mega-brands { padding-top: 16px; }
  .nav-mega-categories a { padding: 9px 0; font-size: .84rem; }
  .nav-mega-brand-list { gap: 10px 14px; }
  .nav-mega-search { margin-top: 18px; }
  .nav-mobile-actions { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; padding: 18px 0 2px !important; border-bottom: 0 !important; }
  .nav-mobile-actions a { display: grid; min-height: 39px; place-items: center; border: 1px solid #d6e0eb; color: #31516f; font-size: .73rem; font-weight: 700; }
  .nav-mobile-actions .nav-mobile-quote { color: #fff; border-color: #174f92; background: #174f92; }

  .home-hero.hero { min-height: 0; padding: 47px 0 0; }
  .hero-layout { grid-template-columns: 1fr; gap: 18px; min-height: 0; }
  .home-hero .hero-content { max-width: 100%; }
  .home-hero .hero-content h1 { font-size: clamp(2.28rem, 11vw, 3.35rem); }
  .home-hero .hero-intro { margin-top: 18px; font-size: .96rem; line-height: 1.75; }
  .home-hero .model-search-panel { max-width: none; margin-top: 24px; }
  .hero-product-stage { min-height: 345px; margin-top: -9px; }
  .hero-product-image { width: min(100%, 405px); max-height: 330px; }
  .hero-product-orbit { width: 235px; }
  .hero-callout { display: none; }
  .hero-product-stage::after { display: none; }
  .hero-product-stage::before { right: 5%; bottom: 9%; width: 90%; }
  .hero-product-stage::marker { display: none; }
  .hero-capability-bar { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 4px; }
  .hero-capability-bar > div { min-height: 72px; padding: 12px 8px 12px 0; border-bottom: 1px solid #dbe4ed; }
  .hero-capability-bar > div:nth-child(2n) { padding-left: 12px; border-right: 0; }
  .hero-capability-bar > div:nth-last-child(-n+2) { border-bottom: 0; }
}

@media (max-width: 480px) {
  .site-header .container, .home-hero .container { padding-inline: 18px; }
  .site-logo-subtitle { font-size: .5rem; }
  .home-hero.hero { padding-top: 35px; }
  .hero-eyebrow { margin-bottom: 13px; font-size: .65rem; }
  .home-hero .hero-content h1 { font-size: 2.42rem; }
  .home-hero .model-search-form { display: flex; flex-direction: column; overflow: visible; border: 0; background: transparent; box-shadow: none; }
  .home-hero .model-search-form input { min-height: 52px; border: 1px solid #cbd7e3; box-shadow: 0 7px 18px rgba(28, 52, 84, .06); }
  .home-hero .model-search-form button { min-height: 48px; margin-top: 8px; }
  .home-hero .model-search-links { gap: 7px 12px; line-height: 1.6; }
  .home-hero .hero-buttons { display: grid; grid-template-columns: 1fr 1fr; margin-top: 23px; }
  .home-hero .hero-buttons .btn { width: 100%; padding: 12px 8px; font-size: .86rem; }
  .hero-product-stage { min-height: 286px; }
  .hero-product-image { width: min(100%, 330px); max-height: 285px; }
  .hero-capability-bar strong { font-size: .72rem; }
  .hero-capability-bar small { font-size: .63rem; }
}

/* UI Phase 1 visual correction — the first screen stays intentionally light. */
.site-header.navbar {
  background: rgba(255, 255, 255, .92);
  border-bottom-color: rgba(27, 61, 97, .10);
}

.home-hero.hero {
  min-height: 700px;
  padding-top: 92px;
  background:
    radial-gradient(ellipse 42% 58% at 78% 46%, rgba(74, 130, 185, .10), transparent 75%),
    linear-gradient(135deg, #f7f9fc 0%, #ffffff 54%, #f4f8fc 100%);
}
.home-hero.hero::before { display: none; }
.hero-layout {
  grid-template-columns: minmax(430px, .80fr) minmax(530px, 1.20fr);
  gap: clamp(54px, 6vw, 104px);
  min-height: 550px;
}
.home-hero .hero-content h1 {
  max-width: 560px;
  color: #102a43;
  font-size: clamp(3.15rem, 4.2vw, 4.2rem);
  font-weight: 750;
  letter-spacing: -0.052em;
  line-height: 1.055;
}
.hero-eyebrow {
  margin-bottom: 21px;
  color: #3975ab;
  font-size: .88rem;
  font-weight: 650;
  letter-spacing: .11em;
}
.home-hero .hero-intro {
  max-width: 535px;
  margin-top: 25px;
  color: #526579;
  font-size: 1.05rem;
  line-height: 1.72;
}
.home-hero .model-search-panel { margin-top: 36px; }
.home-hero .model-search-copy h2 { margin-bottom: 12px; color: #183854; font-size: .97rem; }
.home-hero .model-search-form {
  min-height: 61px;
  border-color: rgba(35, 74, 112, .20);
  box-shadow: 0 8px 24px rgba(24, 56, 88, .075);
}
.home-hero .model-search-form input { height: 61px; padding-inline: 19px; color: #244764; background: #fff; }
.home-hero .model-search-form button { min-width: 142px; background: #2168a6; }
.home-hero .model-search-form button:hover { background: #16588f; }
.home-hero .model-search-links { margin-top: 15px; }
.home-hero .hero-buttons { gap: 12px; margin-top: 31px; }
.home-hero .btn-lg { min-height: 46px; padding: 11px 18px; font-size: .91rem; }
.home-hero .btn-primary { background: #1e619b; }
.home-hero .btn-outline { color: #224765; border-color: #9db5cd; background: rgba(255, 255, 255, .52); }

.hero-product-stage { min-height: 555px; overflow: visible; }
.hero-product-orbit {
  width: min(39vw, 505px);
  border-color: rgba(67, 123, 176, .14);
  box-shadow: 0 0 0 48px rgba(74, 131, 187, .030), 0 0 0 96px rgba(74, 131, 187, .018);
}
.hero-product-stage::before {
  right: -2%;
  bottom: 12%;
  width: 90%;
  height: 32%;
  background: radial-gradient(ellipse, rgba(28, 64, 102, .14), transparent 69%);
}
.hero-product-stage::after { display: none; }
.hero-product-image {
  width: min(116%, 660px);
  max-height: 540px;
  mix-blend-mode: multiply;
  transform: translate(calc(10px + var(--hero-product-x, 0px)), calc(6px + var(--hero-product-y, 0px))) rotate(var(--hero-product-rotate, 0deg));
  transform-origin: 55% 58%;
  transition: transform 240ms ease-out, filter 240ms ease-out;
}
.hero-product-stage.is-interactive .hero-product-image { --hero-product-rotate: .35deg; filter: drop-shadow(0 25px 22px rgba(18, 42, 70, .19)); }
.hero-callout { max-width: 175px; padding-left: 18px; color: #69829a; opacity: .82; }
.hero-callout::before { left: -62px; width: 66px; }
.hero-callout strong { color: #315d87; font-size: .8rem; }
.hero-callout small { margin-top: 2px; font-size: .7rem; }
.hero-callout-one { top: 14%; left: -3%; }
.hero-callout-two { top: 29%; right: -5%; }
.hero-callout-three { bottom: 17%; left: -1%; }
.hero-callout-four { right: -1%; bottom: 11%; }

.hero-capability-bar {
  gap: 14px;
  margin: 38px 0 0;
  padding-bottom: 46px;
  border: 0;
}
.hero-capability-bar > div {
  min-height: 102px;
  padding: 17px 16px;
  border: 1px solid rgba(39, 74, 109, .11);
  border-radius: 12px;
  background: rgba(255, 255, 255, .92);
  box-shadow: 0 6px 18px rgba(33, 63, 93, .035);
  transition: transform 200ms ease-out, box-shadow 200ms ease-out, border-color 200ms ease-out;
}
.hero-capability-bar > div + div { padding-left: 16px; }
.hero-capability-bar > div:hover { border-color: rgba(42, 106, 164, .25); box-shadow: 0 10px 22px rgba(33, 63, 93, .065); transform: translateY(-2px); }
.hero-capability-mark { color: #9bb7d1; }
.hero-capability-bar strong { color: #244a6b; font-size: .8rem; }
.hero-capability-bar small { color: #778b9e; font-size: .69rem; }

/* Phase 1 only establishes a calm background for the existing Brands block. */
.core-brands { background: #f7f9fc; }
.core-brands .section-header h2 { color: #102a43; }
.core-brands .section-subtitle { color: #708398; }
.core-brands .core-brand-link { color: #173654; background: #fff; border-color: #e0e7ef; box-shadow: none; }

@media (max-width: 1024px) {
  .home-hero.hero { min-height: 660px; padding-top: 74px; }
  .hero-layout { grid-template-columns: minmax(0, .87fr) minmax(390px, 1.13fr); gap: 32px; }
  .home-hero .hero-content h1 { font-size: clamp(2.8rem, 5.2vw, 3.75rem); }
  .hero-product-image { width: min(112%, 560px); max-height: 460px; }
  .hero-callout { transform: scale(.84); }
}

@media (max-width: 768px) {
  .home-hero.hero { min-height: 0; padding-top: 49px; }
  .hero-layout { grid-template-columns: 1fr; gap: 24px; min-height: 0; }
  .home-hero .hero-content h1 { font-size: clamp(2.4rem, 10vw, 3.3rem); line-height: 1.07; }
  .home-hero .hero-intro { max-width: 550px; margin-top: 20px; }
  .home-hero .model-search-panel { margin-top: 28px; }
  .hero-product-stage { min-height: 380px; margin-top: 4px; }
  .hero-product-image { width: min(110%, 455px); max-height: 390px; transform: translate(0, 0); }
  .hero-product-orbit { width: 260px; }
  .hero-capability-bar { gap: 9px; margin-top: 20px; padding-bottom: 30px; }
  .hero-capability-bar > div, .hero-capability-bar > div + div { min-height: 84px; padding: 13px 11px; border: 1px solid rgba(39, 74, 109, .11); }
}

@media (max-width: 480px) {
  .home-hero.hero { padding-top: 39px; }
  .home-hero .hero-content h1 { font-size: clamp(2.35rem, 10.6vw, 2.75rem); }
  .hero-eyebrow { font-size: .72rem; }
  .home-hero .hero-intro { font-size: .93rem; }
  .home-hero .model-search-panel { margin-top: 25px; }
  .home-hero .model-search-form input { min-height: 58px; height: 58px; }
  .hero-product-stage { min-height: 310px; }
  .hero-product-image { width: min(111%, 355px); max-height: 315px; }
  .hero-capability-bar { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-capability-bar > div:nth-last-child(-n+2) { border-bottom: 1px solid rgba(39, 74, 109, .11); }
}

/* ========================================================================== */
/* UI 交互增强                                                               */
/* ========================================================================== */

/* 键盘焦点可见性：Tab 聚焦时给可交互元素清晰的描边 */
:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}
.btn:focus-visible,
.nav-quote-button:focus-visible,
.nav-link:focus-visible,
.nav-search-button:focus-visible,
.call-button:focus-visible,
.news-load-more:focus-visible,
.news-filter:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }

/* 按钮按下反馈（触感） */
.btn:active { transform: translateY(0) scale(0.97); }
.nav-quote-button:active { transform: translateY(0) scale(0.97); }
.model-search-form button:active { transform: scale(0.97); }

/* 返回顶部按钮（JS 动态注入） */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 500;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid #d6e0eb;
  border-radius: 50%;
  background: #ffffff;
  color: #244a6b;
  box-shadow: 0 6px 18px rgba(33, 63, 93, .14);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.25s ease-out, transform 0.25s ease-out, visibility 0.25s ease-out, background 0.2s ease-out, color 0.2s ease-out;
}
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: #174f92; color: #fff; border-color: #174f92; }
.back-to-top:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
.back-to-top svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 2; }
@media (max-width: 768px) { .back-to-top { right: 16px; bottom: 16px; width: 40px; height: 40px; } }

/* ============================================================
   黄金产品详情页（Golden Product Detail Page）
   实验模板：/products/moog/d661-4506
   设计原则：静止时专业克制，鼠标触碰有反馈；不破坏 SSR 与 SEO。
   ============================================================ */

.pd-page {
  padding-top: 4px;
}
.pd-page .pd-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 18px 0 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.pd-page .pd-breadcrumb a {
  color: var(--text-secondary);
  transition: color var(--ease-out);
}
.pd-page .pd-breadcrumb a:hover { color: var(--brand); }
.pd-breadcrumb-sep { color: var(--border-hover); }

/* ── Hero：左 Gallery / 右 Purchase ── */
.pd-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr); /* ≈52% / 48% */
  gap: var(--space-2xl);
  align-items: start;
  padding: 12px 0 var(--space-2xl);
}

/* ── Gallery ── */
.pd-gallery { min-width: 0; }
.pd-stage {
  position: relative;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, #fbfcfe 0%, #f1f4f7 100%);
  overflow: hidden;
  /* 极轻的层次感，避免廉价大阴影 */
  box-shadow: 0 1px 2px rgba(24, 52, 84, .05), 0 6px 20px -14px rgba(24, 52, 84, .18);
}
.pd-main-img {
  width: 100%;
  height: 100%;
  object-fit: contain;           /* 保持产品原始比例，严禁拉伸 */
  display: block;
  transform: translate(var(--pd-zoom-x, 0px), var(--pd-zoom-y, 0px)) scale(var(--pd-zoom-s, 1));
  transition: transform .18s ease-out, opacity .25s ease-out;
  will-change: transform;
}
.pd-main-img.pd-img-swapping { opacity: 0; }
@media (hover: hover) and (pointer: fine) {
  .pd-stage:hover .pd-main-img:not(.pd-img-pending) { --pd-zoom-s: 1.06; }
}
.pd-main-img.pd-img-pending {
  background: var(--bg-muted);
}
.pd-thumbs {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  overflow-x: auto;
  padding: 2px 2px 6px;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
}
.pd-thumb {
  flex: 0 0 76px;
  width: 76px;
  height: 64px;
  display: grid;
  place-items: center;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  cursor: pointer;
  overflow: hidden;
  scroll-snap-align: start;
  transition: border-color var(--ease-out), transform var(--ease-out), box-shadow var(--ease-out), opacity var(--ease-out);
}
.pd-thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
.pd-thumb:hover { border-color: var(--border-hover); transform: translateY(-1px); }
.pd-thumb.is-active {
  border-color: var(--brand);
  box-shadow: 0 0 0 2px var(--brand-muted);
}
.pd-thumb.is-pending { opacity: .55; border-style: dashed; }
.pd-thumb.is-pending img { opacity: .8; }
.pd-thumb-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  color: var(--text-secondary);
  font-size: var(--text-xs);
  font-weight: 600;
  text-decoration: none;
  background: var(--brand-muted);
  border-color: var(--brand-muted);
}
.pd-thumb-link:hover { border-color: var(--brand); color: var(--brand); }
.pd-thumb-link-icon { font-size: 1rem; line-height: 1; }
.pd-stage-note {
  margin: 8px 0 0;
  font-size: var(--text-xs);
  color: var(--text-muted);
  background: var(--bg-muted);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
}

/* ── Purchase Panel ── */
.pd-purchase {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  padding: var(--space-xl) var(--space-xl) var(--space-lg);
  box-shadow: 0 1px 2px rgba(24, 52, 84, .04), 0 10px 28px -18px rgba(24, 52, 84, .16);
}
.pd-title {
  font-size: var(--text-2xl);
  line-height: 1.25;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin: 0;
}
.pd-title-brand {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--brand);
}
.pd-title-model {
  font-size: clamp(1.7rem, 2.6vw, var(--text-3xl));
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--text-primary);
}
.pd-title-type {
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--text-secondary);
}
.pd-series-chip {
  display: inline-block;
  margin-top: 10px;
  padding: 3px 10px;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
}
.pd-price {
  margin-top: 18px;
  padding: 14px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.pd-price-value {
  font-size: clamp(1.45rem, 2.2vw, var(--text-2xl));
  font-weight: 700;
  color: var(--brand);
  line-height: 1.25;
}
.pd-price-note {
  margin-top: 6px;
  font-size: var(--text-xs);
  line-height: 1.55;
  color: var(--text-muted);
}
.pd-status {
  margin: 14px 0 0;
  padding: 0;
}
.pd-status-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.pd-status-row:last-child { border-bottom: 0; }
.pd-status-label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}
.pd-status-value {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
}
.pd-status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand);
  flex: none;
}
.pd-status-dot-ok { background: var(--success); }
.pd-status-dot-muted { background: var(--text-muted); opacity: .55; }

/* CTA */
.pd-cta {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 18px;
}
.pd-btn-primary,
.pd-btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 13px 22px;
  border-radius: var(--radius-btn);
  font: inherit;
  font-size: var(--text-base);
  font-weight: 700;
  cursor: pointer;
  transition: background var(--ease-out), border-color var(--ease-out), color var(--ease-out), transform var(--ease-out), box-shadow var(--ease-out);
}
.pd-btn-primary {
  border: 1px solid var(--brand);
  background: var(--brand);
  color: #fff;
}
.pd-btn-primary:hover {
  background: var(--brand-hover);
  border-color: var(--brand-hover);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px -10px rgba(30, 97, 155, .55);
}
.pd-btn-secondary {
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-primary);
}
.pd-btn-secondary:hover {
  border-color: var(--brand);
  color: var(--brand);
  transform: translateY(-1px);
}
.pd-btn-primary:focus-visible,
.pd-btn-secondary:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}
.pd-btn-primary:disabled { opacity: .65; cursor: wait; transform: none; box-shadow: none; }

/* Trust bar */
.pd-trust {
  margin-top: 16px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.pd-trust li {
  display: flex;
  align-items: baseline;
  gap: 7px;
  font-size: var(--text-xs);
  color: var(--text-secondary);
  line-height: 1.5;
}
.pd-trust-check { color: var(--success); font-weight: 700; }

/* ── 区块通用 ── */
.pd-section {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--border);
  scroll-margin-top: 84px;
}
.pd-section:first-of-type { border-top: 0; }
.pd-section-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  letter-spacing: .01em;
}

/* 产品信息（SEO 语义区） */
.pd-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  overflow: hidden;
}
.pd-info-item {
  display: flex;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
}
.pd-info-item dt {
  flex: 0 0 96px;
  font-size: var(--text-sm);
  color: var(--text-muted);
}
.pd-info-item dd {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
  word-break: break-word;
}
@media (min-width: 769px) {
  .pd-info-item:nth-last-child(-n+1) { border-bottom: 0; }
}
@media (max-width: 768px) {
  .pd-info-item { border-right: 0; }
  .pd-info-item:last-child { border-bottom: 0; }
}

/* 技术参数 */
.pd-specs {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-elevated);
}
.pd-specs th,
.pd-specs td {
  padding: 12px 18px;
  text-align: left;
  font-size: var(--text-sm);
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.pd-specs tr:last-child th,
.pd-specs tr:last-child td { border-bottom: 0; }
.pd-specs th {
  width: 34%;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-muted);
}
.pd-specs td { color: var(--text-primary); }
.pd-spec-unit { color: var(--text-muted); font-size: var(--text-xs); margin-left: 4px; }
@media (max-width: 640px) {
  .pd-specs tr { display: block; padding: 12px 16px; border-bottom: 1px solid var(--border); }
  .pd-specs tr:last-child { border-bottom: 0; }
  .pd-specs th,
  .pd-specs td { display: block; width: 100%; padding: 2px 0; border-bottom: 0; }
  .pd-specs th { background: transparent; }
}

/* 描述 */
.pd-prose {
  font-size: var(--text-base);
  line-height: 1.85;
  color: var(--text-secondary);
  max-width: 860px;
}

/* 应用领域 */
.pd-apps { display: flex; flex-wrap: wrap; gap: 8px; }
.pd-app-chip {
  padding: 7px 14px;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  background: var(--bg-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: border-color var(--ease-out), color var(--ease-out), transform var(--ease-out);
}
.pd-app-chip:hover { border-color: var(--brand); color: var(--brand); transform: translateY(-1px); }

/* 液压测试支持 */
.pd-testing-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--space-xl);
  align-items: start;
}
.pd-testing-photos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.pd-test-photo {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-muted);
  overflow: hidden;
  transition: border-color var(--ease-out), transform var(--ease-out), box-shadow var(--ease-out);
}
.pd-test-photo:hover { border-color: var(--border-hover); transform: translateY(-2px); }
.pd-test-photo img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}
.pd-test-photo img.pd-img-pending { object-fit: contain; background: var(--bg-muted); }
.pd-test-photo figcaption {
  padding: 8px 12px;
  font-size: var(--text-xs);
  color: var(--text-secondary);
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
}
.pd-pending-hint { color: var(--text-muted); }
.pd-test-photo.has-photo .pd-pending-hint { display: none; }
.pd-testing-copy p {
  margin: 0 0 12px;
  font-size: var(--text-base);
  line-height: 1.8;
  color: var(--text-secondary);
}
.pd-text-link {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  color: var(--brand);
  font-weight: 700;
  font-size: var(--text-sm);
}
.pd-text-link:hover { text-decoration: underline; }

/* 铭牌询价模块 */
.pd-nameplate { scroll-margin-top: 84px; }
.pd-nameplate-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  padding: var(--space-lg) var(--space-xl);
  border: 1px solid var(--border);
  border-left: 4px solid var(--brand);
  border-radius: var(--radius-lg);
  background: linear-gradient(90deg, var(--brand-muted) 0%, var(--bg-elevated) 55%);
}
.pd-nameplate-copy .pd-section-title { margin-bottom: 6px; }
.pd-nameplate-copy p { margin: 0; color: var(--text-secondary); font-size: var(--text-sm); }
.pd-nameplate-note {
  margin-top: 10px;
  font-size: var(--text-xs);
  color: var(--text-muted);
}
.pd-nameplate-btn { width: auto; min-width: 210px; flex: none; }

/* 相关型号 */
.pd-related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 14px;
}
.pd-related-card {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  color: inherit;
  transition: border-color var(--ease-out), transform var(--ease-out), box-shadow var(--ease-out);
}
.pd-related-card:hover {
  border-color: var(--brand);
  transform: translateY(-3px);
  box-shadow: 0 12px 26px -16px rgba(24, 52, 84, .28);
}
.pd-related-brand {
  margin: 0;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.pd-related-model {
  margin: 0;
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--text-primary);
}
.pd-related-category {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--text-secondary);
}
.pd-related-price {
  margin: 6px 0 0;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--brand);
}
.pd-related-link {
  margin-top: auto;
  padding-top: 10px;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--brand);
  display: inline-flex;
  gap: 6px;
  align-items: center;
  transition: gap var(--ease-out);
}
.pd-related-card:hover .pd-related-link { gap: 10px; }

/* 询价区 */
.pd-inquiry { scroll-margin-top: 84px; }
.pd-inquiry-head { margin-bottom: var(--space-md); }
.pd-inquiry-chip-label {
  margin: 0 0 6px;
  font-size: var(--text-xs);
  color: var(--text-muted);
}
.pd-inquiry-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.pd-chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: 999px;
  background: var(--brand-muted);
  color: var(--brand);
  border: 1px solid transparent;
}
.pd-chip-brand { background: var(--text-primary); color: #fff; }
.pd-chip-model { background: var(--brand); color: #fff; }
.pd-chip-category { background: var(--bg-muted); color: var(--text-secondary); border-color: var(--border); }
.pd-inquiry-hint {
  margin: 8px 0 0;
  font-size: var(--text-xs);
  color: var(--text-muted);
}
.pd-form {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  padding: var(--space-lg) var(--space-xl);
}
.pd-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 16px;
}
.pd-field { min-width: 0; }
.pd-field-wide { grid-column: 1 / -1; }
.pd-field label {
  display: block;
  margin-bottom: 5px;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-secondary);
}
.pd-field input,
.pd-field textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: var(--text-sm);
  color: var(--text-primary);
  background: var(--bg);
  box-sizing: border-box;
  transition: border-color var(--ease-out), box-shadow var(--ease-out), background var(--ease-out);
}
.pd-field input:focus,
.pd-field textarea:focus {
  outline: none;
  border-color: var(--brand);
  background: #fff;
  box-shadow: 0 0 0 3px var(--brand-muted);
}
.pd-field textarea { resize: vertical; min-height: 92px; }
.pd-attach-label {
  display: inline-flex !important;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color var(--ease-out), color var(--ease-out), background var(--ease-out);
}
.pd-attach-label:hover { border-color: var(--brand); color: var(--brand); background: var(--brand-muted); }
.pd-attach-icon { font-size: 1.05rem; line-height: 1; }
.pd-attach-files {
  margin: 8px 0 0;
  font-size: var(--text-xs);
  color: var(--text-secondary);
  word-break: break-all;
}
.pd-attach-files:empty { display: none; }
.pd-attach-hint {
  margin: 6px 0 0;
  font-size: var(--text-xs);
  color: var(--text-muted);
}
.pd-form-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: var(--space-md);
}
.pd-form-actions .pd-btn-primary { width: auto; min-width: 200px; }
.pd-inquiry-msg {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}
.pd-inquiry-msg.is-success { color: var(--success); font-weight: 600; }
.pd-inquiry-msg.is-error { color: var(--error); }

/* ── Mobile Sticky CTA ── */
.pd-sticky-cta {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 300;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, .96);
  border-top: 1px solid var(--border);
  box-shadow: 0 -6px 18px -12px rgba(24, 52, 84, .25);
}
.pd-sticky-cta .pd-btn-primary { width: 100%; }

/* ── 响应式 ── */
@media (max-width: 1024px) {
  .pd-hero { gap: var(--space-lg); }
  .pd-purchase { padding: var(--space-lg); }
}
@media (max-width: 900px) {
  .pd-hero { grid-template-columns: 1fr; }
  .pd-testing-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  /* 移动端顺序：产品图 → 品牌+型号 → 价格 → 状态 → CTA → …（DOM 顺序天然满足） */
  .pd-sticky-cta { display: block; }
  .pd-page { padding-bottom: calc(72px + env(safe-area-inset-bottom)); }
  body.has-pd-sticky .back-to-top { bottom: calc(78px + env(safe-area-inset-bottom)); }
  .pd-title-type { font-size: var(--text-base); }
  .pd-testing-photos { grid-template-columns: 1fr 1fr; }
  .pd-nameplate-inner {
    flex-direction: column;
    align-items: stretch;
  }
  .pd-nameplate-btn { width: 100%; }
  .pd-form { padding: var(--space-md); }
  .pd-form-grid { grid-template-columns: 1fr; }
  .pd-form-actions { flex-direction: column; align-items: stretch; }
  .pd-form-actions .pd-btn-primary { width: 100%; }
  .pd-info-item dt { flex-basis: 84px; }
}
@media (max-width: 480px) {
  .pd-thumb { flex-basis: 64px; width: 64px; height: 54px; }
  .pd-trust { grid-template-columns: 1fr; }
  .pd-testing-photos { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .pd-main-img,
  .pd-related-card,
  .pd-btn-primary,
  .pd-btn-secondary,
  .pd-thumb,
  .pd-app-chip { transition: none; }
  .pd-stage:hover .pd-main-img { --pd-zoom-s: 1; }
}
/* ===== Model Directory (型号中心) optimization 2026-08-26 ===== */
.model-directory-hero-compact { padding-block: clamp(24px, 4vw, 44px); }
.model-directory-hero-compact .breadcrumb { margin-bottom: 12px; }
.model-directory-hero-compact .hero-eyebrow { margin-bottom: 6px; }
.model-directory-hero-compact h1 { margin-bottom: 8px; }
.model-directory-hero-compact p { margin-bottom: 0; }
.model-directory-hero-compact .model-directory-search { margin-top: 16px; }
.model-directory-layout { display: flex; gap: 32px; align-items: flex-start; }
.model-directory-sidebar { flex: 0 0 190px; position: sticky; top: 96px; }
.model-directory-sidebar nav { display: flex; flex-direction: column; gap: 2px; }
.model-directory-brand-link { display: flex; justify-content: space-between; align-items: center; padding: 9px 12px; border-left: 3px solid transparent; color: #31445d; text-decoration: none; font-size: .95rem; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; transition: background .15s, border-color .15s, color .15s; }
.model-directory-brand-link span { color: #7b8794; font-size: .82rem; font-variant-numeric: tabular-nums; }
.model-directory-brand-link:hover { background: rgba(37, 99, 235, .06); color: #1d4ed8; }
.model-directory-brand-link.is-active { border-left-color: #2563eb; background: rgba(37, 99, 235, .07); color: #1d4ed8; font-weight: 700; }
.model-directory-brand-link.is-active span { color: #1d4ed8; }
.model-directory-panels { flex: 1 1 auto; min-width: 0; }
.model-directory-chips { display: none; gap: 8px; overflow-x: auto; padding-block: 4px 12px; margin-bottom: 4px; scrollbar-width: none; }
.model-directory-chips::-webkit-scrollbar { display: none; }
.model-directory-chip { flex: 0 0 auto; padding: 8px 16px; border: 1px solid #dfe5ec; background: #fff; color: #31445d; border-radius: 999px; font-size: .88rem; cursor: pointer; white-space: nowrap; transition: background .15s, border-color .15s, color .15s; }
.model-directory-chip:hover { border-color: #2563eb; color: #1d4ed8; }
.model-directory-chip.is-active { background: #2563eb; border-color: #2563eb; color: #fff; }
.model-directory-series-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; }
.model-directory-series-card { position: relative; padding: 16px 18px; border: 1px solid #e7ebf0; border-radius: var(--radius-lg); background: #fff; min-height: 0; transition: border-color .15s, box-shadow .15s; }
.model-directory-series-card:hover { border-color: #c9d5e4; box-shadow: 0 6px 18px rgba(20, 45, 73, .07); }
.model-directory-series-meta { margin-bottom: 4px; font-size: .74rem; color: #7b8794; }
.model-directory-series-count { display: inline-block; font-size: .78rem; color: #6b7a8d; margin-bottom: 8px; }
.model-directory-series-card h3 { margin: 0 0 10px; font-size: 1.12rem; }
.model-directory-model-list { list-style: none; margin: 0 0 12px; padding: 0; }
.model-directory-model-link { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 7px 10px; border-radius: var(--radius-sm); color: #1d4ed8; text-decoration: none; font-size: .92rem; transition: background .15s; }
.model-directory-model-link:hover { background: rgba(37, 99, 235, .08); color: #1e40af; }
.model-directory-model-link [aria-hidden="true"] { opacity: .45; font-weight: 700; transition: opacity .15s, transform .15s; }
.model-directory-model-link:hover [aria-hidden="true"] { opacity: 1; transform: translateX(2px); }
.model-directory-explore { display: inline-flex; gap: 6px; align-items: center; font-size: .9rem; font-weight: 600; color: #1d4ed8; text-decoration: none; }
.model-directory-explore:hover { color: #1e40af; }
@media (max-width: 860px) {
  .model-directory-layout { display: block; }
  .model-directory-sidebar { display: none; }
  .model-directory-chips { display: flex; }
  .model-directory-series-grid { grid-template-columns: 1fr; gap: 12px; }
}