/* ==========================================================================
   Zbreaker  液压破碎锤 · 浅色清爽工业风
   配色：深蓝主色 + 橙红强调，白/浅灰底，与同类深色厂家站形成差异
   ========================================================================== */

:root {
  --bg: #f5f6f8;
  --bg-soft: #eceef1;
  --bg-card: #ffffff;
  --bg-deep: #16324f;
  --bg-deep-2: #1d3d5e;
  --line: rgba(22, 50, 79, 0.12);
  --accent: #e8552d;
  --accent-dark: #d1431c;
  --yellow: #ffc72c;
  --yellow-dark: #e0a800;
  --yellow-soft: #fff6d9;
  --text: #1b2530;
  --text-dim: #56616d;
  --text-faint: #8b95a1;
  --font-title: "Bebas Neue", "Arial Narrow", sans-serif;
  --font-body: "Roboto Condensed", "PingFang SC", "Microsoft YaHei", sans-serif;
  --shadow: 0 16px 40px rgba(22, 50, 79, 0.12);
  --radius: 6px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
}

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.center {
  text-align: center;
}

/* ---------- 顶部联系条 ---------- */
.topbar {
  background: var(--bg-deep);
  color: rgba(255, 255, 255, 0.85);
  font-size: 13.5px;
  letter-spacing: 0.3px;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 40px;
}

.topbar-contacts {
  display: flex;
  gap: 22px;
}

.topbar-contacts a {
  color: rgba(255, 255, 255, 0.85);
  transition: color 0.2s;
}

.topbar-contacts a:hover {
  color: var(--yellow);
}

.topbar-note {
  color: var(--yellow);
  font-weight: 500;
}

/* ---------- 头部导航 ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.3s;
}

.header.scrolled {
  box-shadow: 0 6px 24px rgba(22, 50, 79, 0.1);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 74px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-title);
  font-size: 30px;
  letter-spacing: 2px;
  color: var(--bg-deep);
  white-space: nowrap;
}

.logo img {
  height: 40px;
  width: auto;
  flex-shrink: 0;
}

.logo span {
  color: var(--accent);
  font-size: 20px;
}

.nav {
  display: flex;
  gap: 30px;
}

.nav a {
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  padding: 6px 0;
  position: relative;
  transition: color 0.2s;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.25s;
}

.nav a:hover,
.nav a.active {
  color: var(--text);
}

.nav a:hover::after,
.nav a.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  color: var(--text);
  font-size: 20px;
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  cursor: pointer;
  line-height: 1;
}

.nav-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 11px 22px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 1px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.15s;
  white-space: nowrap;
}

.btn:active {
  transform: translateY(1px);
}

.btn-lg {
  padding: 15px 34px;
  font-size: 16px;
}

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

.btn-primary:hover {
  background: var(--accent-dark);
}

.btn-outline {
  background: transparent;
  border-color: rgba(22, 50, 79, 0.4);
  color: var(--bg-deep);
}

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

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--bg-deep);
  padding: 9px 18px;
  font-size: 14px;
}

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

/* ---------- 区块通用 ---------- */
.eyebrow {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.section-title {
  font-family: var(--font-title);
  font-size: 46px;
  line-height: 1.1;
  letter-spacing: 1.5px;
  color: var(--bg-deep);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.section-desc {
  color: var(--text-dim);
  max-width: 720px;
  margin: 0 auto 48px;
  font-size: 16.5px;
}

section {
  padding: 96px 0;
}

/* ---------- Hero 大图轮播 ---------- */
.hero-carousel {
  position: relative;
  height: min(78vh, 720px);
  min-height: 560px;
  background: var(--bg-deep);
  border-bottom: 4px solid var(--accent);
  overflow: hidden;
}

.hero-slides,
.hero-slide {
  position: absolute;
  inset: 0;
}

.hero-slide {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

.hero-slide.active {
  opacity: 1;
  visibility: visible;
  z-index: 1;
}

.hero-slide-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.05);
  transition: transform 7s ease;
}

.hero-slide.active .hero-slide-img {
  transform: scale(1);
}

.hero-slide-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg,
    rgba(10, 24, 40, 0.85) 0%,
    rgba(10, 24, 40, 0.55) 42%,
    rgba(10, 24, 40, 0.18) 68%,
    rgba(10, 24, 40, 0.05) 100%);
}

.hero-slide.right .hero-slide-overlay {
  background: linear-gradient(270deg,
    rgba(10, 24, 40, 0.85) 0%,
    rgba(10, 24, 40, 0.55) 42%,
    rgba(10, 24, 40, 0.18) 68%,
    rgba(10, 24, 40, 0.05) 100%);
}

.hero-slide-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  color: #fff;
}

.hero-slide-content.right {
  align-items: flex-end;
  text-align: right;
}

.hero-slide-content .eyebrow {
  color: var(--yellow);
}

.hero-slide-title {
  font-family: var(--font-title);
  font-size: clamp(52px, 7.5vw, 104px);
  line-height: 1;
  letter-spacing: 2px;
  color: #fff;
  text-transform: uppercase;
  margin-bottom: 22px;
}

.hero-slide-desc {
  color: rgba(255, 255, 255, 0.85);
  font-size: 17px;
  line-height: 1.7;
  max-width: 560px;
  margin-bottom: 32px;
}

.hero-slide-content.right .hero-slide-desc {
  margin-left: auto;
}

.hero-slide-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-carousel .btn-outline {
  border-color: rgba(255, 255, 255, 0.55);
  color: #fff;
}

.hero-carousel .btn-outline:hover {
  border-color: #fff;
  color: #ff8a63;
}

/* 文字入场动画 */
.hero-slide-content > * {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.hero-slide.active .hero-slide-content > * {
  opacity: 1;
  transform: translateY(0);
}

.hero-slide.active .hero-slide-content > *:nth-child(2) { transition-delay: 0.12s; }
.hero-slide.active .hero-slide-content > *:nth-child(3) { transition-delay: 0.24s; }
.hero-slide.active .hero-slide-content > *:nth-child(4) { transition-delay: 0.36s; }

/* 左右箭头 */
.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.4);
  background: rgba(10, 24, 40, 0.3);
  color: #fff;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}

.hero-arrow:hover {
  background: var(--accent);
  border-color: var(--accent);
}

.hero-arrow-prev { left: 28px; }
.hero-arrow-next { right: 28px; }

/* 指示圆点 */
.hero-dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 26px;
  z-index: 3;
  display: flex;
  justify-content: center;
  gap: 10px;
}

.hero-dot {
  width: 12px;
  height: 12px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.45);
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}

.hero-dot.active {
  background: var(--accent);
  transform: scale(1.3);
}

/* ---------- 产品系列 ---------- */
.products {
  background: var(--bg);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 520px));
  gap: 26px;
  justify-content: center;
}

/* 三类型(侧装/顶装/箱体)三列布局 */
.product-grid-3 {
  grid-template-columns: repeat(3, minmax(0, 400px));
}

/* 三类型:纯图片 + 名称的设计卡 */
.type-card {
  border: none;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(22, 50, 79, 0.12);
}

.type-card .product-thumb {
  height: 360px;
}

.type-card .product-thumb::before {
  background: linear-gradient(180deg, rgba(22, 50, 79, 0.02) 40%, rgba(22, 50, 79, 0.78) 100%);
}

.type-card .product-thumb::after {
  display: none;
}

.type-card .thumb-label {
  left: 26px;
  bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  text-shadow: none;
}

.type-card .thumb-line {
  width: 42px;
  height: 3px;
  background: var(--yellow);
  border-radius: 2px;
  margin-bottom: 6px;
}

.type-card .thumb-name {
  font-family: var(--font-title);
  font-size: 34px;
  letter-spacing: 5px;
  line-height: 1;
  color: #fff;
}

.type-card .thumb-name-zh {
  font-size: 14px;
  letter-spacing: 3px;
  color: rgba(255, 255, 255, 0.85);
}

/* ---------- 全系列概览(Hydraulic breaker range overview) ---------- */
.range-overview {
  margin-top: 72px;
  padding-top: 60px;
  border-top: 1px solid var(--line);
}

.range-left {
  display: flex;
  flex-direction: column;
}

.range-title {
  font-family: var(--font-title);
  font-size: 32px;
  line-height: 1.15;
  letter-spacing: 1.5px;
  color: var(--bg-deep);
  text-transform: uppercase;
  text-align: left;
  margin-bottom: 30px;
}

.range-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 56px;
  align-items: start;
  width: 100%;
}

.range-list {
  display: flex;
  flex-direction: column;
}

.range-item {
  margin-bottom: 20px;
}

.range-item-head {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  padding: 4px 0;
  border: none;
  background: none;
  cursor: pointer;
  font: inherit;
  text-align: left;
}

.range-hex {
  width: 34px;
  height: 38px;
  flex-shrink: 0;
  color: #c9ced6;
  transition: transform 0.3s, color 0.25s;
}

.range-item.active .range-hex {
  transform: scale(1.1);
  color: var(--yellow);
}

.range-item-name {
  font-family: var(--font-title);
  font-size: 28px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--bg-deep);
  transition: color 0.25s;
}

.range-item.active .range-item-name {
  color: var(--bg-deep);
}

.range-item-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
  padding-left: 50px;
  color: var(--text-dim);
  font-size: 14.5px;
  line-height: 1.8;
}

.range-item.active .range-item-body {
  max-height: 400px;
  padding-top: 8px;
  padding-bottom: 4px;
}

.range-media {
  position: relative;
  height: 420px;
  overflow: hidden;
}

.range-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.45s ease;
}

.range-media img.active {
  opacity: 1;
}

/* ---------- 产品筛选与全型号网格 ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px 28px;
  padding: 18px 22px;
  margin-bottom: 34px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px rgba(22, 50, 79, 0.05);
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-dim);
  margin-right: 4px;
  letter-spacing: 1px;
}

.filter-btn {
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--text-dim);
  font-size: 13.5px;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.filter-btn.active {
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--bg-deep);
}

.filter-count {
  margin-left: auto;
  font-size: 13px;
  color: var(--text-faint);
}

.model-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 26px;
}

.model-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 8px rgba(22, 50, 79, 0.04);
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.model-card:hover {
  transform: translateY(-5px);
  border-color: rgba(232, 85, 45, 0.45);
  box-shadow: var(--shadow);
}

.model-img {
  position: relative;
  height: 230px;
  background: #f3f5f7;
  overflow: hidden;
}

.model-img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.model-img img.active {
  opacity: 1;
}

.model-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  background: var(--bg-deep);
  color: #fff;
  font-family: var(--font-title);
  font-size: 12px;
  letter-spacing: 2px;
  padding: 4px 10px;
  border-radius: 3px;
}

.model-body {
  padding: 18px 18px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.model-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 12px;
}

.model-name {
  font-family: var(--font-title);
  font-size: 30px;
  letter-spacing: 2px;
  color: var(--bg-deep);
}

.housing-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
}

.housing-tab {
  flex: 1;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--text-dim);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 0;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.2s;
}

.housing-tab:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.housing-tab.active {
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--bg-deep);
}

.model-specs {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  border-top: 1px dashed var(--line);
}

.model-specs li {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 7px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 13px;
  color: var(--text-dim);
}

.model-specs li strong {
  color: var(--bg-deep);
  font-weight: 700;
}

.model-card .btn {
  margin-top: auto;
  padding: 9px 18px;
  font-size: 13.5px;
}

/* ---------- 热销机型(Hot Sale) ---------- */
.hot-sale {
  margin-top: 72px;
  padding: 60px 48px 64px;
  background: var(--yellow);
  border-radius: 24px;
}

.hot-sale .eyebrow {
  color: var(--bg-deep);
}

.hot-sale .section-desc {
  color: #6b5a10;
}

.hot-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  margin-top: 40px;
}

.hot-card {
  border-radius: 14px;
}

.hot-img {
  position: relative;
  height: 270px;
  background: #f3f5f7;
  overflow: hidden;
}

.hot-img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 8px;
  transition: transform 0.5s ease;
}

.hot-card:hover .hot-img img {
  transform: scale(1.06);
}

/* 横版场景图:铺满裁切,不留白边 */
.hot-img img.fill {
  object-fit: cover;
  padding: 0;
}

.hot-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  background: var(--bg-deep);
  color: var(--yellow);
  font-family: var(--font-title);
  font-size: 13px;
  letter-spacing: 2px;
  padding: 5px 12px;
  border-radius: 20px;
  box-shadow: 0 4px 12px rgba(22, 50, 79, 0.35);
}

.hot-card .hot-name {
  font-family: var(--font-title);
  font-size: 34px;
  letter-spacing: 3px;
  color: var(--bg-deep);
  margin-bottom: 8px;
}

.hot-specs {
  list-style: none;
  margin: 14px 0 18px;
  padding: 0;
  border-top: 1px dashed var(--line);
}

.hot-specs li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 13.5px;
  color: var(--text-dim);
}

.hot-specs li strong {
  color: var(--bg-deep);
  font-weight: 700;
}

.hot-card .btn {
  margin-top: auto;
  padding: 9px 18px;
  font-size: 13.5px;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 8px rgba(22, 50, 79, 0.04);
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(232, 85, 45, 0.45);
  box-shadow: var(--shadow);
}

.product-thumb {
  height: 230px;
  position: relative;
  overflow: hidden;
}

.product-thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.product-card:hover .product-thumb img {
  transform: scale(1.05);
}

/* 底部渐隐,保证系列标签可读 */
.product-thumb::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(22, 50, 79, 0) 45%, rgba(22, 50, 79, 0.6) 100%);
}

.product-thumb::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 4px;
  background: var(--accent);
  z-index: 2;
}

.thumb-label {
  position: absolute;
  left: 18px;
  bottom: 16px;
  z-index: 2;
  font-family: var(--font-title);
  font-size: 32px;
  letter-spacing: 4px;
  color: #fff;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.45);
}

.product-body {
  padding: 26px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.tag {
  display: inline-block;
  align-self: flex-start;
  background: rgba(232, 85, 45, 0.08);
  border: 1px solid rgba(232, 85, 45, 0.3);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  padding: 4px 12px;
  border-radius: 3px;
  margin-bottom: 14px;
}

.product-body h3 {
  font-family: var(--font-title);
  font-size: 30px;
  letter-spacing: 1px;
  color: var(--bg-deep);
  margin-bottom: 14px;
}

.feature-list {
  margin-bottom: 22px;
  flex: 1;
}

.feature-list li {
  color: var(--text-dim);
  font-size: 14.5px;
  padding-left: 20px;
  position: relative;
  margin-bottom: 9px;
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 9px;
  height: 2px;
  background: var(--accent);
}

/* ---------- 页头大图 Hero(首页模式:整图 + 左/右侧文字) ---------- */
.hero-banner {
  position: relative;
  background: #0d1b2e;
  height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-banner-img {
  position: absolute;
  inset: 0;
  background: center / cover no-repeat;
}

.hero-banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(10, 20, 34, 0.94) 0%, rgba(10, 20, 34, 0.8) 42%, rgba(10, 20, 34, 0.45) 100%);
}

.hero-banner.right .hero-banner-overlay {
  background: linear-gradient(-100deg, rgba(10, 20, 34, 0.94) 0%, rgba(10, 20, 34, 0.8) 42%, rgba(10, 20, 34, 0.45) 100%);
}

.hero-banner-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
}

.hero-banner-content {
  max-width: 640px;
}

.hero-banner.right .hero-banner-content {
  justify-self: end;
  text-align: right;
}

.hero-crumb {
  font-size: 13px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 18px;
}

.hero-crumb a {
  color: #fff;
  transition: color 0.2s;
}

.hero-crumb a:hover {
  color: var(--yellow);
}

.hero-crumb span {
  color: var(--yellow);
}

.hero-tag {
  display: inline-block;
  background: var(--yellow);
  color: var(--bg-deep);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 2.5px;
  padding: 7px 14px;
  border-radius: 5px;
  margin-bottom: 22px;
  text-transform: uppercase;
}

.hero-banner h1 {
  font-family: var(--font-title);
  font-size: clamp(42px, 5.2vw, 74px);
  line-height: 1.04;
  letter-spacing: 2px;
  color: #fff;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.hero-title-accent {
  color: var(--yellow);
}

.hero-desc {
  color: rgba(255, 255, 255, 0.84);
  font-size: 16px;
  line-height: 1.75;
  max-width: 560px;
  margin-bottom: 32px;
}

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

.hero-banner.right .hero-actions {
  justify-content: flex-end;
}

.hero-btn-primary {
  background: var(--yellow);
  color: var(--bg-deep);
}

.hero-btn-primary:hover {
  background: var(--yellow-dark);
  color: var(--bg-deep);
}

.hero-btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.55);
  color: #fff;
}

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

/* ---------- 内页页头横幅 ---------- */
.page-header {
  padding: 72px 0 64px;
  background:
    radial-gradient(700px 380px at 85% 10%, rgba(232, 85, 45, 0.10), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, #f2f4f7 100%);
  border-bottom: 1px solid var(--line);
  text-align: center;
}

.page-header h1 {
  font-family: var(--font-title);
  font-size: 56px;
  letter-spacing: 2px;
  color: var(--bg-deep);
  margin-bottom: 14px;
}

.page-header p {
  color: var(--text-dim);
  font-size: 16.5px;
  max-width: 640px;
  margin: 0 auto;
}

/* ---------- 品牌价值区(融合Epiroc内容) ---------- */
.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.value-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 32px 28px;
  box-shadow: 0 6px 24px rgba(22, 50, 79, 0.07);
  transition: transform 0.25s, box-shadow 0.25s;
}

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

.value-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.value-check {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--yellow);
  color: var(--bg-deep);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.value-card h3 {
  font-family: var(--font-body);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: var(--bg-deep);
  margin-bottom: 0;
}

.value-card p {
  color: var(--text-dim);
  font-size: 14.5px;
  line-height: 1.7;
}

/* ---------- 常见问题 FAQ ---------- */
.faq {
  background: var(--bg-soft);
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-item summary {
  cursor: pointer;
  padding: 18px 22px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--bg-deep);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: background 0.2s;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "＋";
  color: var(--accent);
  font-size: 18px;
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  content: "－";
}

.faq-item[open] summary {
  background: rgba(232, 85, 45, 0.05);
}

.faq-item summary:hover {
  background: rgba(232, 85, 45, 0.05);
}

.faq-answer {
  padding: 0 22px 20px;
  color: var(--text-dim);
  font-size: 14.5px;
  line-height: 1.7;
}

.faq-answer ul {
  margin-top: 8px;
  padding-left: 18px;
  list-style: disc;
}

.faq-answer li {
  margin-bottom: 6px;
}

/* ---------- 相关服务(Related service) ---------- */
.service {
  background: var(--bg);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  transition: transform 0.25s, box-shadow 0.25s;
}

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

.service-card .s-icon {
  font-size: 30px;
  margin-bottom: 12px;
}

.service-card h3 {
  font-family: var(--font-title);
  font-size: 22px;
  letter-spacing: 1px;
  color: var(--bg-deep);
  margin-bottom: 8px;
}

.service-card p {
  color: var(--text-dim);
  font-size: 14px;
}

/* ---------- 首页配件与零部件 ---------- */
.parts {
  background: var(--bg);
}

.parts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.part-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  text-align: left;
  box-shadow: 0 2px 8px rgba(22, 50, 79, 0.04);
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.part-card:hover {
  transform: translateY(-6px);
  border-color: rgba(232, 85, 45, 0.45);
  box-shadow: var(--shadow);
}

.part-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.part-img {
  display: block;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #fff;
}

.part-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

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

.part-body {
  padding: 20px 22px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.part-body h3 {
  font-family: var(--font-title);
  font-size: 19px;
  letter-spacing: 0.5px;
  color: var(--bg-deep);
  line-height: 1.2;
}

.part-body p {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--text-dim);
}

.part-more {
  margin-top: auto;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--accent);
}

/* ---------- 首页区块入口卡片 ---------- */
.entry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.entry-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 26px;
  display: block;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.entry-card:hover {
  transform: translateY(-5px);
  border-color: rgba(232, 85, 45, 0.45);
  box-shadow: var(--shadow);
}

.entry-card h3 {
  font-family: var(--font-title);
  font-size: 24px;
  letter-spacing: 1px;
  color: var(--bg-deep);
  margin-bottom: 10px;
}

.entry-card p {
  color: var(--text-dim);
  font-size: 14.5px;
  margin-bottom: 14px;
}

.entry-card .entry-more {
  color: var(--accent);
  font-weight: 700;
  font-size: 14px;
}

/* ---------- 文章列表与详情 ---------- */
.articles {
  background: var(--bg);
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 6px 24px rgba(22, 50, 79, 0.06);
  transition: transform 0.25s, box-shadow 0.25s;
}

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

.article-cover {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.article-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}

.article-card:hover .article-cover img {
  transform: scale(1.05);
}

.article-cat {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  background: var(--yellow);
  color: var(--bg-deep);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 4px 10px;
  border-radius: 4px;
}

.article-card-body {
  padding: 20px 22px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.article-card-body time,
.article-meta time {
  color: var(--text-faint);
  font-size: 13px;
  letter-spacing: 0.5px;
}

.article-card-body h2 {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--bg-deep);
  margin: 8px 0 10px;
}

.article-card-body h2 a {
  transition: color 0.2s;
}

.article-card-body h2 a:hover {
  color: var(--accent);
}

.article-card-body p {
  color: var(--text-dim);
  font-size: 14.5px;
  line-height: 1.7;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-more {
  margin-top: auto;
  color: var(--accent);
  font-weight: 700;
  font-size: 14px;
  transition: letter-spacing 0.2s;
}

.article-more:hover {
  letter-spacing: 1px;
}

/* 文章详情 */
.article-detail {
  padding: 48px 0 24px;
  background: var(--bg);
}

.article-detail-head {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 32px;
}

.article-detail-head .article-cat {
  position: static;
  display: inline-block;
  margin-bottom: 14px;
}

.article-detail-head h1 {
  font-family: var(--font-title);
  font-size: clamp(30px, 3.6vw, 46px);
  line-height: 1.2;
  letter-spacing: 1px;
  color: var(--bg-deep);
  margin-bottom: 12px;
}

.article-meta {
  color: var(--text-faint);
  font-size: 14px;
}

.article-cover-lg {
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 40px;
  box-shadow: 0 16px 40px rgba(22, 50, 79, 0.14);
}

.article-cover-lg img {
  width: 100%;
  display: block;
}

.article-body {
  max-width: 780px;
  margin: 0 auto 40px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}

.article-body p {
  margin-bottom: 18px;
}

.article-body h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--bg-deep);
  margin: 40px 0 14px;
  padding-left: 14px;
  border-left: 4px solid var(--yellow);
}

.article-body ul {
  margin: 0 0 18px;
  padding-left: 22px;
}

.article-body li {
  margin-bottom: 8px;
  list-style: disc;
}

.article-body strong {
  color: var(--bg-deep);
}

.article-back {
  text-align: center;
  padding: 24px 0 56px;
}

.article-back a {
  display: inline-block;
  border: 1px solid var(--line);
  background: var(--bg-card);
  color: var(--bg-deep);
  font-weight: 700;
  padding: 11px 26px;
  border-radius: var(--radius);
  transition: border-color 0.2s, color 0.2s;
}

.article-back a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.related-articles {
  background: var(--bg-soft);
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  padding: 18px 0 0;
  font-size: 13.5px;
  color: var(--text-faint);
  letter-spacing: 0.5px;
}

.breadcrumb a {
  color: var(--text-dim);
  transition: color 0.2s;
}

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

.breadcrumb span {
  color: var(--bg-deep);
  font-weight: 700;
}

/* ---------- 产品详情页 ---------- */
.product-detail {
  padding: 44px 0 72px;
  background: var(--bg);
}

.product-detail-inner {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 48px;
  align-items: center;
}

.product-detail-media .placeholder {
  aspect-ratio: 4 / 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px dashed rgba(22, 50, 79, 0.3);
  border-radius: var(--radius);
  background:
    linear-gradient(160deg, rgba(232, 85, 45, 0.08), transparent 55%),
    #fff;
  color: var(--text-faint);
  font-size: 15px;
  text-align: center;
  padding: 24px;
}

.product-detail-media .placeholder strong {
  font-family: var(--font-title);
  font-size: 30px;
  letter-spacing: 2px;
  color: var(--bg-deep);
}

.product-detail-media .detail-media {
  position: relative;
  aspect-ratio: 4 / 3;
  background: #f3f5f7;
  border-radius: var(--radius);
  overflow: hidden;
}

.product-detail-media .detail-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.product-detail-media .detail-media img.active {
  opacity: 1;
}

.detail-housing-tabs {
  margin-top: 14px;
}

.detail-housing-tabs .housing-tab {
  padding: 9px 0;
  font-size: 13px;
}

.specs-table tr[data-housing] {
  cursor: pointer;
}

.specs-table tr[data-housing].active td {
  background: var(--yellow-soft);
  font-weight: 700;
  color: var(--bg-deep);
}

.product-detail-sub {
  font-family: var(--font-title);
  font-size: 28px;
  letter-spacing: 2px;
  color: var(--bg-deep);
  margin-bottom: 18px;
}

.product-detail-info .tag {
  margin-bottom: 16px;
}

.product-detail-title {
  font-family: var(--font-title);
  font-size: 56px;
  line-height: 1.05;
  letter-spacing: 2px;
  color: var(--bg-deep);
  margin-bottom: 18px;
}

.product-detail-desc {
  color: var(--text-dim);
  font-size: 16px;
  margin-bottom: 24px;
}

.product-detail-key {
  margin-bottom: 28px;
}

.product-detail-key li {
  color: var(--text-dim);
  font-size: 15px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.product-detail-key li:first-child {
  border-top: 1px solid var(--line);
}

.product-detail-key li strong {
  color: var(--bg-deep);
  font-weight: 700;
}

.product-detail-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ---------- 详情页特性区 ---------- */
.detail-features {
  background: #ffffff;
}

.detail-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.detail-feature {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
}

.detail-feature h3 {
  font-family: var(--font-title);
  font-size: 22px;
  letter-spacing: 1px;
  color: var(--bg-deep);
  margin-bottom: 8px;
}

.detail-feature p {
  color: var(--text-dim);
  font-size: 14.5px;
}

/* ---------- 相关型号 ---------- */
.related {
  background: var(--bg-soft);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.related-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 20px;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  display: block;
}

.related-card:hover {
  transform: translateY(-4px);
  border-color: rgba(232, 85, 45, 0.45);
  box-shadow: var(--shadow);
}

.related-card .r-thumb {
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-title);
  font-size: 22px;
  letter-spacing: 2px;
  color: var(--bg-deep);
  border-radius: var(--radius);
  margin-bottom: 14px;
}

.related-card .r-thumb.r-hb {
  background: linear-gradient(135deg, #eef3f8, #dbe6f0);
}

.related-card .r-thumb.r-sb {
  background: linear-gradient(135deg, #f6efe9, #ecdcc9);
}

.related-card h3 {
  font-family: var(--font-title);
  font-size: 20px;
  letter-spacing: 1px;
  color: var(--bg-deep);
  margin-bottom: 6px;
}

.related-card p {
  color: var(--text-faint);
  font-size: 12.5px;
}

/* ---------- 参数表 ---------- */
.specs {
  background: var(--bg-soft);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 820px;
}

.specs-table th {
  background: var(--bg-deep);
  color: #fff;
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 1px;
  text-align: left;
  padding: 16px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  white-space: nowrap;
}

.specs-table td {
  padding: 15px 20px;
  color: var(--text-dim);
  font-size: 14.5px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.specs-table tr:last-child td {
  border-bottom: none;
}

.specs-table tbody tr {
  transition: background 0.15s;
}

.specs-table tbody tr:hover {
  background: rgba(232, 85, 45, 0.05);
}

.specs-table td:first-child {
  color: var(--bg-deep);
  font-weight: 700;
}

.table-link {
  color: var(--accent);
  font-weight: 700;
  white-space: nowrap;
  transition: color 0.2s;
}

.table-link:hover {
  color: var(--accent-dark);
  text-decoration: underline;
}

.table-note {
  margin-top: 14px;
  color: var(--text-faint);
  font-size: 12.5px;
}

/* ---------- 优势 ---------- */
.advantages {
  background: #ffffff;
}

.adv-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.adv-card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-top: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 32px 26px;
  transition: transform 0.25s, box-shadow 0.25s, background 0.25s;
}

.adv-card:hover {
  transform: translateY(-4px);
  background: #fff;
  box-shadow: var(--shadow);
}

.adv-icon {
  font-size: 34px;
  margin-bottom: 18px;
}

.adv-card h3 {
  font-family: var(--font-title);
  font-size: 24px;
  letter-spacing: 1px;
  color: var(--bg-deep);
  margin-bottom: 10px;
}

.adv-card p {
  color: var(--text-dim);
  font-size: 14.5px;
}

/* ---------- 关于我们 ---------- */
.about {
  background: var(--bg-soft);
}

.about-inner {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 56px;
  align-items: center;
}

.about-text p {
  color: var(--text-dim);
  font-size: 16px;
  margin-bottom: 18px;
}

.about-media-box {
  height: 380px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px dashed rgba(22, 50, 79, 0.3);
  border-radius: var(--radius);
  background:
    linear-gradient(160deg, rgba(232, 85, 45, 0.06), transparent 55%),
    #fff;
  color: var(--text-dim);
  font-size: 15px;
  text-align: center;
  padding: 24px;
}

.about-media-box span {
  color: var(--text-faint);
  font-size: 13px;
}

/* 关于我们:实拍工厂图片 */
.about-media-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.about-media-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: 0 6px 18px rgba(22, 50, 79, 0.1);
}

.about-media-grid .about-img-main {
  grid-column: 1 / -1;
  aspect-ratio: 16 / 10;
}

.about-media-grid img:not(.about-img-main) {
  aspect-ratio: 4 / 3;
}

/* 公司宣传视频 */
.about-video {
  background: var(--bg);
}

.video-wrap {
  max-width: 920px;
  margin: 0 auto;
  border-radius: var(--radius);
  overflow: hidden;
  background: #0d1b2a;
  box-shadow: var(--shadow);
}

.video-wrap video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #0d1b2a;
}

/* 应用场景 */
.applications {
  background: var(--bg-soft);
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.app-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform 0.25s, box-shadow 0.25s;
}

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

.app-card .s-icon {
  font-size: 30px;
  margin-bottom: 12px;
}

.app-card h3 {
  font-family: var(--font-title);
  font-size: 22px;
  letter-spacing: 1px;
  color: var(--bg-deep);
  margin-bottom: 8px;
}

.app-card p {
  color: var(--text-dim);
  font-size: 14.5px;
}

/* 全球布局 */
.global {
  background: var(--bg);
}

.region-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.region-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-top: 4px solid var(--yellow);
  border-radius: var(--radius);
  padding: 24px 24px 18px;
  transition: transform 0.25s, box-shadow 0.25s;
}

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

.region-card h3 {
  font-family: var(--font-title);
  font-size: 24px;
  letter-spacing: 1px;
  color: var(--bg-deep);
  margin-bottom: 12px;
}

.region-card ul li {
  color: var(--text-dim);
  font-size: 14.5px;
  padding: 6px 0;
  border-bottom: 1px dashed var(--line);
}

.region-card ul li:last-child {
  border-bottom: none;
}

.global-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 36px;
}

.global-col {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px;
}

.global-col h3 {
  font-family: var(--font-title);
  font-size: 26px;
  letter-spacing: 1px;
  color: var(--bg-deep);
  margin-bottom: 16px;
}

.global-col ul li {
  color: var(--text-dim);
  font-size: 15px;
  padding: 7px 0;
  border-bottom: 1px dashed var(--line);
}

.global-col ul li:last-child {
  border-bottom: none;
}

.global-col ul li::before {
  content: "✓";
  color: var(--accent);
  font-weight: 700;
  margin-right: 10px;
}

/* ---------- 客户案例 ---------- */
.cases {
  background: var(--bg);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(22, 50, 79, 0.04);
  transition: transform 0.25s, box-shadow 0.25s;
}

.case-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.case-thumb {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #eef2f6, #dfe7ee);
  color: var(--text-faint);
  font-size: 14px;
  border-bottom: 1px solid var(--line);
}

.case-card h3 {
  font-family: var(--font-title);
  font-size: 24px;
  letter-spacing: 1px;
  color: var(--bg-deep);
  padding: 20px 24px 6px;
}

.case-card p {
  color: var(--text-dim);
  font-size: 14.5px;
  padding: 0 24px 24px;
}

/* ---------- 行动号召 ---------- */
.cta {
  background:
    radial-gradient(800px 400px at 85% 20%, rgba(255, 255, 255, 0.08), transparent 60%),
    linear-gradient(120deg, var(--bg-deep) 0%, var(--bg-deep-2) 100%);
  padding: 72px 0;
}

.cta-inner {
  text-align: center;
}

.cta h2 {
  font-family: var(--font-title);
  font-size: 52px;
  letter-spacing: 2px;
  color: #fff;
  margin-bottom: 12px;
}

.cta p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 17px;
  margin-bottom: 30px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.cta .btn-primary {
  background: var(--yellow);
  color: var(--bg-deep);
}

.cta .btn-primary:hover {
  background: var(--yellow-dark);
  color: var(--bg-deep);
}

.cta .btn-outline {
  border-color: rgba(255, 255, 255, 0.45);
  color: #fff;
}

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

/* ---------- 联系我们 ---------- */
.contact {
  background: var(--bg-soft);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 56px;
}

.contact-list li {
  color: var(--text-dim);
  font-size: 15.5px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.contact-list li:first-child {
  border-top: 1px solid var(--line);
}

.wechat-box {
  margin-top: 26px;
  display: flex;
  align-items: center;
  gap: 18px;
}

.wechat-qr {
  width: 110px;
  height: 110px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 12px;
  color: var(--text-faint);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.wechat-box p {
  color: var(--text-dim);
  font-size: 13.5px;
}

/* ---------- 询价表单 ---------- */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 32px;
  box-shadow: 0 2px 8px rgba(22, 50, 79, 0.04);
}

.contact-form h3 {
  font-family: var(--font-title);
  font-size: 30px;
  letter-spacing: 1px;
  color: var(--bg-deep);
  margin-bottom: 22px;
}

.contact-form label {
  display: block;
  color: var(--text-dim);
  font-size: 13.5px;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

.req {
  color: var(--accent);
}

/* 标签文字包裹层:让文字与必填 * 保持同一行(不受 flex 列布局影响) */
.contact-form .field-label {
  display: block;
}

.contact-form input,
.contact-form select,
.contact-form textarea,
.quote-modal-form input,
.quote-modal-form select,
.quote-modal-form textarea {
  width: 100%;
  margin-top: 7px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  padding: 12px 14px;
  transition: border-color 0.2s;
}

.contact-form select,
.quote-modal-form select {
  appearance: none;
  -webkit-appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-dim) 50%),
    linear-gradient(135deg, var(--text-dim) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px;
  background-repeat: no-repeat;
}

.contact-form select option,
.quote-modal-form select option {
  background: #fff;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus,
.quote-modal-form input:focus,
.quote-modal-form select:focus,
.quote-modal-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(232, 85, 45, 0.12);
}

.contact-form textarea {
  resize: vertical;
  min-height: 96px;
}

.form-hint {
  color: var(--text-faint);
  font-size: 12.5px;
  margin-bottom: 18px;
}

.form-status {
  margin-top: 14px;
  font-size: 14px;
  font-weight: 600;
  min-height: 22px;
}

.form-status.ok {
  color: #1d8a4e;
}

.form-status.err {
  color: #d1431c;
}

/* ---------- 悬浮询价按钮 ---------- */
.floating-quote {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 90;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 14px 22px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 1px;
  cursor: pointer;
  box-shadow: 0 10px 28px rgba(232, 85, 45, 0.4);
  transition: transform 0.2s, background 0.2s;
}

.floating-quote:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
}

/* ---------- 询价弹窗 ---------- */
.quote-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.25s, visibility 0.25s;
}

.quote-modal.open {
  visibility: visible;
  opacity: 1;
}

.quote-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 32, 50, 0.6);
  backdrop-filter: blur(3px);
}

.quote-modal-panel {
  position: relative;
  width: 100%;
  max-width: 520px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 30px;
  transform: translateY(16px);
  transition: transform 0.25s;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
}

.quote-modal.open .quote-modal-panel {
  transform: translateY(0);
}

.quote-modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 20px;
  cursor: pointer;
  width: 34px;
  height: 34px;
  border-radius: var(--radius);
}

.quote-modal-close:hover {
  color: var(--accent);
  background: rgba(232, 85, 45, 0.08);
}

.quote-modal-panel h3 {
  font-family: var(--font-title);
  font-size: 30px;
  letter-spacing: 1px;
  color: var(--bg-deep);
  margin-bottom: 8px;
}

.quote-modal-sub {
  color: var(--text-dim);
  font-size: 13.5px;
  margin-bottom: 16px;
}

.quote-modal-contacts {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 18px;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.quote-modal-contacts a {
  color: var(--accent);
}

.quote-modal-form input,
.quote-modal-form textarea {
  margin: 0 0 14px;
}

.quote-modal-form textarea {
  resize: vertical;
  min-height: 72px;
}

/* ---------- 询价表单两列布局 ---------- */
.contact-form,
.quote-modal-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 16px;
  row-gap: 14px;
}

.contact-form label {
  display: flex;
  flex-direction: column;
  /* 标签文字换行(如 Email Address * / Phone / WhatsApp *)时,输入框仍与
     同一行另一列的输入框保持同一水平线 */
  justify-content: flex-end;
}

.contact-form h3 {
  grid-column: 1 / -1;
}

.contact-form label.span-2,
.quote-modal-form .span-2,
.contact-form .form-hint,
.contact-form .btn,
.contact-form .form-status,
.quote-modal-form .form-hint,
.quote-modal-form .btn,
.quote-modal-form .form-status {
  grid-column: 1 / -1;
}

.quote-modal-form input,
.quote-modal-form select,
.quote-modal-form textarea {
  margin: 0; /* 两列网格用 gap 控制间距 */
}

.quote-modal-form .btn {
  width: 100%;
}

.quote-modal-form .form-hint {
  margin-bottom: 6px;
}

/* ---------- 页脚 ---------- */
.footer {
  background: var(--bg-deep);
  border-top: 4px solid var(--yellow);
  padding-top: 64px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  color: #fff;
  margin-bottom: 18px;
}

.footer-col a {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  font-size: 14.5px;
  margin-bottom: 10px;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: #ffb199;
}

.footer-col p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14.5px;
  margin-bottom: 10px;
}

.footer .logo {
  font-size: 26px;
  color: #fff;
  margin-bottom: 14px;
}

.footer .logo img {
  height: 36px;
}

.footer .logo span {
  color: #ff8a63;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 20px 24px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .product-grid,
  .case-grid,
  .entry-grid,
  .value-grid,
  .service-grid,
  .range-grid,
  .hot-grid,
  .model-grid,
  .article-grid,
  .parts-grid,
  .app-grid,
  .region-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

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

  .about-inner,
  .contact-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

}

@media (max-width: 768px) {
  html {
    scroll-padding-top: 70px;
  }

  section {
    padding: 68px 0;
  }

  .section-title {
    font-size: 36px;
  }

  .topbar-inner {
    flex-direction: column;
    gap: 4px;
    padding: 8px 24px;
  }

  .topbar-contacts {
    gap: 14px;
  }

  .header-inner {
    min-height: 64px;
  }

  .logo {
    font-size: 24px;
  }

  .logo span {
    font-size: 16px;
  }

  .nav {
    position: fixed;
    top: 0;
    right: -280px;
    width: 260px;
    height: 100vh;
    flex-direction: column;
    gap: 0;
    background: #fff;
    border-left: 1px solid var(--line);
    padding: 80px 28px 28px;
    transition: right 0.3s ease;
    z-index: 150;
  }

  .nav.open {
    right: 0;
  }

  .nav a {
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
    font-size: 16px;
  }

  .nav-toggle {
    display: block;
  }

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

  .hero-carousel {
    height: 62vh;
    min-height: 460px;
  }

  .hero-slide-desc {
    font-size: 15.5px;
  }

  .hero-arrow {
    width: 42px;
    height: 42px;
    font-size: 22px;
  }

  .hero-arrow-prev { left: 14px; }
  .hero-arrow-next { right: 14px; }

  .hero-slide-content {
    padding-top: 20px;
    padding-bottom: 20px;
  }

  .product-grid,
  .case-grid,
  .adv-grid,
  .detail-features-grid,
  .entry-grid,
  .range-grid,
  .value-grid,
  .service-grid,
  .hot-grid,
  .model-grid,
  .article-grid,
  .parts-grid,
  .app-grid,
  .region-grid {
    grid-template-columns: 1fr;
  }

  .global-cols {
    grid-template-columns: 1fr;
  }

  .hero-banner {
    height: auto;
    min-height: 440px;
    padding: 56px 0;
  }

  .hero-banner-inner {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .hero-banner.right .hero-banner-content {
    justify-self: start;
    text-align: left;
  }

  .hero-banner.right .hero-actions {
    justify-content: flex-start;
  }

  .hero-desc {
    max-width: none;
  }

  .contact-form,
  .quote-modal-form {
    grid-template-columns: 1fr;
  }

  .hot-sale {
    padding: 40px 20px 44px;
  }

  .product-detail-title {
    font-size: 42px;
  }

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

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

  .footer-col:first-child {
    grid-column: 1 / -1;
  }

  .cta h2 {
    font-size: 38px;
  }
}

@media (max-width: 480px) {
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .topbar-contacts {
    flex-direction: column;
    gap: 2px;
  }
}

/* ==========================================================================
   Design polish layer
   Refined depth, micro-interactions and typographic details on top of the
   base stylesheet. Keeps the navy + orange brand system; removes this block
   as a whole to revert.
   ========================================================================== */

/* ---------- Global: selection, scrollbar, focus ---------- */
::selection {
  background: rgba(232, 85, 45, 0.22);
  color: var(--bg-deep);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

html {
  scrollbar-width: thin;
  scrollbar-color: rgba(22, 50, 79, 0.45) rgba(22, 50, 79, 0.06);
}

::-webkit-scrollbar {
  width: 11px;
  height: 11px;
}

::-webkit-scrollbar-track {
  background: rgba(22, 50, 79, 0.05);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(22, 50, 79, 0.55), rgba(22, 50, 79, 0.4));
  border-radius: 6px;
  border: 2px solid rgba(255, 255, 255, 0.4);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

/* ---------- Section headers: kicker bars + title rule ---------- */
.eyebrow.center {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.eyebrow.center::before,
.eyebrow.center::after {
  content: "";
  height: 1px;
  width: 34px;
  background: linear-gradient(90deg, transparent, var(--accent));
}

.eyebrow.center::after {
  background: linear-gradient(90deg, var(--accent), transparent);
}

.section-title.center {
  position: relative;
  padding-bottom: 20px;
}

.section-title.center::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 56px;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), #f08a5a);
}

/* ---------- Hero: bottom fade + refined controls ---------- */
.hero-carousel::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 140px;
  background: linear-gradient(180deg, rgba(13, 27, 46, 0), rgba(13, 27, 46, 0.4));
  pointer-events: none;
  z-index: 2;
}

.hero-slide-content .eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-slide-content .eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--yellow);
  flex-shrink: 0;
}

.hero-arrow {
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  transition: background 0.25s, border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}

.hero-arrow:hover {
  transform: translateY(-50%) scale(1.08);
  box-shadow: 0 12px 30px rgba(232, 85, 45, 0.4);
}

.hero-dot {
  position: relative;
  width: 30px;
  height: 4px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.35);
  transition: background 0.25s;
}

.hero-dot::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}

.hero-dot.active {
  background: rgba(255, 255, 255, 0.25);
}

.hero-dot.active::after {
  transform: scaleX(1);
}

/* ---------- Buttons: depth + sheen sweep ---------- */
.btn {
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 14px rgba(22, 50, 79, 0.08);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  box-shadow: 0 8px 22px rgba(232, 85, 45, 0.32);
}

.btn-primary::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: -70%;
  width: 45%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: skewX(-20deg);
  transition: left 0.55s ease;
}

.btn-primary:hover::before {
  left: 130%;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(232, 85, 45, 0.38);
}

.btn-outline:hover {
  background: rgba(232, 85, 45, 0.07);
}

.cta .btn-primary {
  background: linear-gradient(135deg, var(--yellow) 0%, var(--yellow-dark) 100%);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.28);
  color: var(--bg-deep);
}

/* ---------- Cards: hover depth + top accent reveal ---------- */
.product-card,
.model-card,
.part-card,
.entry-card,
.service-card,
.value-card {
  position: relative;
}

.product-card::before,
.model-card::before,
.part-card::before,
.entry-card::before,
.service-card::before,
.value-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), rgba(232, 85, 45, 0.25));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
  z-index: 3;
}

.product-card:hover::before,
.model-card:hover::before,
.part-card:hover::before,
.entry-card:hover::before,
.service-card:hover::before,
.value-card:hover::before {
  transform: scaleX(1);
}

.product-card:hover,
.model-card:hover {
  box-shadow: 0 24px 48px rgba(22, 50, 79, 0.16), 0 6px 16px rgba(22, 50, 79, 0.08);
}

/* ---------- Type cards: ghost index number + image zoom ---------- */
.product-grid-3 {
  counter-reset: type-idx;
}

.type-card::after {
  content: counter(type-idx, decimal-leading-zero);
  counter-increment: type-idx;
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  line-height: 1;
  color: var(--yellow);
  background: rgba(22, 50, 79, 0.82);
  padding: 6px 10px;
  border-radius: 5px;
  pointer-events: none;
}

.type-card .product-thumb img {
  transition: transform 0.6s ease;
}

.type-card:hover .product-thumb img {
  transform: scale(1.07);
}

/* ---------- Hot cards: refined details ---------- */
.hot-card {
  border: none;
}

.hot-card .hot-name {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.hot-card .hot-name::after {
  content: "";
  flex: 1;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--yellow), var(--yellow) 6px, transparent 6px, transparent 11px);
  opacity: 0.55;
}

.hot-badge {
  border-radius: 0;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%);
}

.hot-specs li {
  transition: background 0.2s, padding 0.2s;
}

.hot-specs li:hover {
  background: rgba(22, 50, 79, 0.045);
  padding-left: 8px;
}

/* ---------- Hot sale block: subtle ghost mark ---------- */
.hot-sale {
  position: relative;
  overflow: hidden;
}

.hot-sale::before {
  content: "HOT SALE";
  position: absolute;
  right: -18px;
  top: -24px;
  font-family: var(--font-title);
  font-size: 128px;
  letter-spacing: 6px;
  line-height: 1;
  color: rgba(22, 50, 79, 0.055);
  pointer-events: none;
}

/* ---------- Service cards: icon chips ---------- */
.service-card .s-icon {
  width: 58px;
  height: 58px;
  margin: 0 auto 16px;
  border-radius: 16px;
  background: linear-gradient(145deg, rgba(232, 85, 45, 0.1), rgba(232, 85, 45, 0.04));
  border: 1px solid rgba(232, 85, 45, 0.18);
  font-size: 26px;
  line-height: 56px;
  display: block;
  transition: transform 0.3s, background 0.3s, box-shadow 0.3s;
}

.service-card:hover .s-icon {
  transform: translateY(-4px) rotate(-6deg);
  background: var(--accent);
  box-shadow: 0 10px 22px rgba(232, 85, 45, 0.35);
}

/* ---------- Value cards: icon chip + index ---------- */
.value-check {
  background: linear-gradient(145deg, var(--bg-deep), var(--bg-deep-2));
  color: var(--yellow);
  box-shadow: 0 6px 14px rgba(22, 50, 79, 0.25);
  transition: transform 0.3s;
}

.value-card:hover .value-check {
  transform: rotate(-8deg) scale(1.08);
}

/* ---------- Range media: framed ---------- */
.range-media {
  border: 1px solid rgba(22, 50, 79, 0.12);
  border-radius: 16px;
  box-shadow: 0 20px 44px rgba(22, 50, 79, 0.14);
}

.range-title {
  position: relative;
  padding-left: 18px;
}

.range-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--accent), var(--yellow));
}

/* ---------- Model cards: image zoom + fjc chip ---------- */
.model-card:hover .model-img img.active {
  transform: scale(1.06);
}

.model-img img {
  transition: opacity 0.3s ease, transform 0.55s ease;
}

/* ---------- FAQ: refined disclosure ---------- */
.faq-item {
  box-shadow: 0 2px 10px rgba(22, 50, 79, 0.05);
  transition: box-shadow 0.25s, border-color 0.25s;
}

.faq-item:hover {
  border-color: rgba(232, 85, 45, 0.3);
  box-shadow: 0 10px 26px rgba(22, 50, 79, 0.09);
}

.faq-item[open] {
  border-color: rgba(232, 85, 45, 0.35);
}

.faq-item summary::after {
  content: "+";
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(232, 85, 45, 0.1);
  color: var(--accent);
  font-size: 16px;
  font-weight: 700;
  transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease;
}

.faq-item[open] summary::after {
  content: "+";
  transform: rotate(45deg);
  background: var(--accent);
  color: #fff;
}

.faq-answer {
  margin-left: 22px;
  padding: 0 22px 20px 18px;
  border-left: 3px solid rgba(232, 85, 45, 0.35);
}

/* ---------- CTA: watermark + grid texture ---------- */
.cta {
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: "Z BREAKER";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-title);
  font-size: clamp(140px, 24vw, 360px);
  letter-spacing: 8px;
  color: rgba(255, 255, 255, 0.04);
  line-height: 1;
  white-space: nowrap;
  pointer-events: none;
}

.cta::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
}

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


/* ---------- Footer: gradient accent line + refined links ---------- */
.footer {
  border-top: none;
  position: relative;
}

.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--yellow) 0%, var(--yellow) 32%, var(--accent) 100%);
}

.footer-col h4 {
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 26px;
  height: 2px;
  background: var(--accent);
}

.footer-col a {
  transition: color 0.2s, padding-left 0.2s;
}

.footer-col a:hover {
  padding-left: 5px;
  color: var(--yellow);
}

/* ---------- Quote modal: depth ---------- */
.quote-modal-panel {
  box-shadow: 0 30px 80px rgba(10, 18, 28, 0.45);
}

/* ---------- Responsive / motion guards ---------- */
@media (max-width: 768px) {
  .hot-sale::before,
  .cta::before {
    display: none;
  }

  .hot-card .hot-name::after {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .btn-primary::before,
  .hero-arrow,
  .hero-dot::after,
  .product-card::before,
  .model-card::before,
  .part-card::before,
  .entry-card::before,
  .service-card::before,
  .value-card::before {
    transition: none;
  }
}

/* ==========================================================================
   Section redesign v2
   参考 Epiroc / Montabert / Indeco 等工业设备厂商官网与主流企业站:
   浅色编辑式排版,细分割线,克制配色,去掉水印 / 玻璃拟态 / 幽灵编号等装饰
   ========================================================================== */

/* ---------- FAQ: 编辑式问答列表 ---------- */
.faq {
  background: var(--bg);
}

.faq-item {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  margin-bottom: 0;
  box-shadow: none;
}

.faq-item:first-child {
  border-top: 1px solid var(--line);
}

.faq-item summary {
  padding: 24px 6px 24px 12px;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--bg-deep);
  gap: 20px;
}

.faq-item summary::after {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 0;
  background: none;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(45deg);
  transition: transform 0.25s;
}

.faq-item[open] summary::after {
  content: "";
  background: none;
  transform: rotate(225deg);
}

.faq-item[open] summary,
.faq-item summary:hover {
  background: transparent;
}

.faq-answer {
  margin-left: 0;
  padding: 0 48px 28px 12px;
  border-left: none;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.8;
  max-width: 720px;
}

/* ---------- Services: 简约卡片 ---------- */
.service {
  background: var(--bg-soft);
}

.service-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 30px 26px;
  text-align: left;
  box-shadow: 0 1px 3px rgba(22, 50, 79, 0.05);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.service-card::before {
  display: none;
}

.service-card:hover {
  transform: translateY(-3px);
  border-color: rgba(232, 85, 45, 0.4);
  box-shadow: 0 14px 30px rgba(22, 50, 79, 0.09);
}

.service-card .s-icon {
  width: auto;
  height: auto;
  margin: 0 0 14px;
  background: none;
  border: none;
  border-radius: 0;
  font-size: 26px;
  line-height: 1;
  display: block;
}

.service-card:hover .s-icon {
  transform: none;
  background: none;
  box-shadow: none;
}

.service-card h3 {
  font-size: 20px;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.service-card p {
  font-size: 14.5px;
  line-height: 1.7;
}

/* ---------- Applications: 简约卡片 ---------- */
.applications {
  background: var(--bg-soft);
}

.app-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 30px 26px;
  box-shadow: 0 1px 3px rgba(22, 50, 79, 0.05);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.app-card:hover {
  transform: translateY(-3px);
  border-color: rgba(232, 85, 45, 0.4);
  box-shadow: 0 14px 30px rgba(22, 50, 79, 0.09);
}

.app-card .s-icon {
  width: auto;
  height: auto;
  margin: 0 0 14px;
  background: none;
  border: none;
  border-radius: 0;
  font-size: 26px;
  line-height: 1;
  display: block;
}

.app-card:hover .s-icon {
  transform: none;
  background: none;
  box-shadow: none;
}

.app-card h3 {
  font-size: 19px;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}

.app-card p {
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- Global: 浅色区 + 数据条 ---------- */
.global {
  background: var(--bg);
}

.global-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-bottom: 44px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.gstat {
  text-align: center;
  padding: 30px 14px 26px;
  border-left: 1px solid var(--line);
  background: transparent;
  transition: background 0.2s;
}

.gstat:first-child {
  border-left: none;
}

.gstat:hover {
  transform: none;
  border-color: inherit;
  background: rgba(232, 85, 45, 0.04);
}

.gstat strong {
  display: block;
  font-family: var(--font-title);
  font-size: 44px;
  line-height: 1;
  letter-spacing: 1px;
  color: var(--bg-deep);
}

.gstat strong::after {
  content: "";
  display: block;
  width: 28px;
  height: 3px;
  margin: 10px auto 0;
  background: var(--accent);
  border-radius: 2px;
}

.gstat span {
  display: block;
  margin-top: 10px;
  color: var(--text-faint);
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.region-card {
  background: #fff;
  border: 1px solid var(--line);
  border-top: 4px solid var(--yellow);
  border-radius: 8px;
  backdrop-filter: none;
}

.region-card h3 {
  color: var(--bg-deep);
}

.region-card ul li {
  color: var(--text-dim);
  border-bottom: 1px dashed var(--line);
}

.region-card:hover {
  transform: translateY(-3px);
  border-color: rgba(232, 85, 45, 0.35);
  box-shadow: 0 14px 30px rgba(22, 50, 79, 0.08);
}

.global-col {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  backdrop-filter: none;
}

.global-col h3 {
  color: var(--bg-deep);
}

.global-col ul li {
  color: var(--text-dim);
  border-bottom: 1px dashed var(--line);
}

.global-col ul li::before {
  color: var(--accent);
}

/* ---------- Contact: 深蓝信息面板 + 简约表单 ---------- */
.contact {
  background: var(--bg-soft);
}

.contact-info {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 42px 36px;
  border-radius: 12px;
  background: var(--bg-deep);
  color: #fff;
  box-shadow: 0 18px 44px rgba(22, 50, 79, 0.20);
}

.contact-info .eyebrow {
  color: var(--yellow);
}

.contact-info .section-title {
  color: #fff;
}

.contact-info .section-desc {
  color: rgba(255, 255, 255, 0.72);
}

.contact-list li {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 15.5px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.contact-list li:first-child {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.c-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

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

.c-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.c-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
}

.c-value {
  font-size: 15.5px;
  font-weight: 500;
  color: #fff;
  line-height: 1.5;
}

.contact-form {
  border-radius: 12px;
  border: 1px solid var(--line);
  padding: 40px 36px;
  box-shadow: 0 18px 44px rgba(22, 50, 79, 0.08);
}

.contact-form::before {
  display: none;
}

.contact-form h3 {
  margin-bottom: 6px;
}

.contact-form h3::before {
  content: none;
}

.contact-form-sub {
  grid-column: 1 / -1;
  color: var(--text-faint);
  font-size: 14px;
  margin: 0 0 6px;
}

.contact-form > .btn.btn-primary {
  width: 100%;
  margin-top: 4px;
}

/* ---------- Section redesign v2: responsive ---------- */
@media (max-width: 768px) {
  .global-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .gstat:nth-child(3) {
    border-left: none;
  }

  .gstat:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .contact-info {
    padding: 32px 24px;
  }

  .contact-form {
    padding: 32px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .service-card,
  .app-card,
  .region-card,
  .gstat {
    transition: none;
  }
}

/* ==========================================================================
   Site-wide scroll reveal + FAQ / hero animations
   .reveal is added by script.js (IntersectionObserver); everything degrades
   gracefully when JS is off or the user prefers reduced motion.
   ========================================================================== */

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
  will-change: opacity, transform;
}

.reveal.reveal-left {
  transform: translateX(-36px);
}

.reveal.reveal-right {
  transform: translateX(36px);
}

.reveal.reveal-zoom {
  transform: scale(0.93);
}

.reveal.revealed {
  opacity: 1;
  transform: none;
}

/* ---------- FAQ: question entrance + answer open animation ---------- */
.faq-item[open] .faq-answer {
  animation: faq-answer-in 0.4s ease;
}

@keyframes faq-answer-in {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- Inner-page hero banner: content entrance ---------- */
.hero-banner-content > * {
  opacity: 0;
  transform: translateY(24px);
  animation: hero-banner-in 0.7s ease forwards;
}

.hero-banner-content > *:nth-child(1) { animation-delay: 0.05s; }
.hero-banner-content > *:nth-child(2) { animation-delay: 0.15s; }
.hero-banner-content > *:nth-child(3) { animation-delay: 0.25s; }
.hero-banner-content > *:nth-child(4) { animation-delay: 0.35s; }
.hero-banner-content > *:nth-child(5) { animation-delay: 0.45s; }

@keyframes hero-banner-in {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .hero-banner-content > * {
    opacity: 1 !important;
    transform: none !important;
    animation: none !important;
    transition: none !important;
  }
}