/* ============================================================
 * 河北奥利灯具有限公司 - 官网样式
 * 视觉方向：工程机械的沉稳深色 + 琥珀灯光强调
 * ============================================================ */

:root {
  /* 色板 */
  --bg-dark: #0b1219;
  --bg-dark-2: #0e1822;
  --bg-dark-3: #122030;
  --bg: #ffffff;
  --bg-soft: #f3f5f7;
  --ink: #101828;
  --ink-2: #344054;
  --muted: #667085;
  --line: #e4e7ec;
  --accent: #f59e0b;
  --accent-2: #ffb020;
  --accent-deep: #d97706;
  --on-dark: #e7edf3;
  --on-dark-2: #9aa7b5;
  --danger: #ef4444;

  /* 字体 */
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;

  /* 尺寸 */
  --container: 1140px;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 8px 30px rgba(16, 24, 40, 0.08);
  --shadow-lg: 0 16px 48px rgba(16, 24, 40, 0.14);

  /* 动效 */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body.no-scroll,
body.menu-open {
  overflow: hidden;
}

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

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

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

ul {
  list-style: none;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 通用板块 ---------- */
.section {
  padding: 88px 0;
}

.section-head {
  max-width: 680px;
  margin-bottom: 48px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.section-head.center .eyebrow::after {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 900;
  line-height: 1.25;
  margin-top: 10px;
  letter-spacing: 0.01em;
}

.section-sub {
  color: var(--muted);
  font-size: 16px;
  margin-top: 14px;
}

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(11, 18, 25, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-logo {
  height: 44px;
  width: auto;
  flex: 0 0 auto;
  border-radius: 8px;
  display: block;
}

.brand-mark {
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  border-radius: 10px;
  background: radial-gradient(circle at 30% 30%, var(--accent-2), var(--accent-deep));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 22px rgba(245, 158, 11, 0.45);
}

.brand-mark svg {
  width: 22px;
  height: 22px;
  color: #fff;
}

.brand-name {
  color: #fff;
  font-weight: 900;
  font-size: 18px;
  line-height: 1.2;
  white-space: nowrap;
}

.brand-tag {
  color: var(--on-dark-2);
  font-size: 11px;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  color: var(--on-dark-2);
  font-size: 15px;
  font-weight: 500;
  padding: 10px 14px;
  border-radius: 8px;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.nav-link:hover {
  color: #fff;
}

.nav-link.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.nav-link.active::after {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  margin-left: 8px;
  box-shadow: 0 0 10px var(--accent);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 2px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 3px;
}

.lang-btn {
  color: var(--on-dark-2);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 6px;
  min-height: 32px;
  transition: all 0.2s var(--ease);
}

.lang-btn[aria-pressed="true"] {
  background: var(--accent);
  color: #101828;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent);
  color: #101828;
  font-weight: 700;
  font-size: 15px;
  padding: 12px 22px;
  border-radius: 10px;
  min-height: 44px;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
}

.cta-btn:hover {
  background: var(--accent-2);
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(245, 158, 11, 0.45);
}

.cta-btn.ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
  box-shadow: none;
}

.cta-btn.ghost:hover {
  border-color: var(--accent);
  color: var(--accent-2);
  background: rgba(245, 158, 11, 0.08);
}

.cta-btn.ghost-dark {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: none;
}

.cta-btn.ghost-dark:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
  background: rgba(245, 158, 11, 0.06);
}

.burger {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.burger svg {
  width: 24px;
  height: 24px;
}

/* 移动端菜单 */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--bg-dark-2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 12px 24px 20px;
  z-index: 99;
}

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

.mobile-menu .nav-link {
  display: flex;
  width: 100%;
  padding: 14px 8px;
  font-size: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.mobile-menu .lang-switch {
  margin-top: 14px;
  justify-content: center;
  background: transparent;
}

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(ellipse 60% 55% at 78% 40%, rgba(245, 158, 11, 0.14), transparent 60%),
    radial-gradient(ellipse 50% 60% at 12% 85%, rgba(59, 130, 246, 0.08), transparent 60%),
    linear-gradient(160deg, var(--bg-dark) 0%, var(--bg-dark-2) 55%, var(--bg-dark-3) 100%);
  color: #fff;
  padding: 160px 0 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.10), transparent 65%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.hero-copy .eyebrow {
  color: var(--accent-2);
}

.hero-title {
  font-size: clamp(34px, 5.2vw, 58px);
  font-weight: 900;
  line-height: 1.15;
  margin-top: 14px;
  letter-spacing: 0.01em;
}

.hero-title .hl {
  color: var(--accent);
  text-shadow: 0 0 32px rgba(245, 158, 11, 0.4);
}

.hero-sub {
  color: var(--on-dark-2);
  font-size: 17px;
  margin-top: 18px;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-glow {
  position: absolute;
  inset: 8% 6%;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.30), rgba(245, 158, 11, 0.06) 55%, transparent 75%);
  filter: blur(6px);
  animation: glowPulse 5s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.05); }
}

.hero-card {
  position: relative;
  width: min(430px, 92%);
  border-radius: 22px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.hero-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.hero-card-label {
  position: absolute;
  left: 14px;
  bottom: 14px;
  background: rgba(11, 18, 25, 0.82);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero-card-label::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}

/* 数据条 */
.stats-bar {
  margin-top: 88px;
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.02);
}

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

.stat {
  padding: 28px 20px;
  text-align: center;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

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

.stat-value {
  font-size: 38px;
  font-weight: 900;
  color: var(--accent-2);
  line-height: 1.1;
  letter-spacing: 0.01em;
}

.stat-label {
  color: var(--on-dark-2);
  font-size: 14px;
  margin-top: 8px;
}

/* ---------- 首页产品系列 ---------- */
.home-cats {
  background: var(--bg);
}

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

.cat-card {
  display: block;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), border-color 0.25s var(--ease);
}

.cat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(245, 158, 11, 0.55);
}

.cat-card-img {
  display: block;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.cat-card-img img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.cat-card-body {
  display: block;
  padding: 18px 20px 20px;
}

.cat-card-title {
  display: block;
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
}

.cat-card-title::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  margin-right: 8px;
  vertical-align: 1px;
}

.cat-card-desc {
  display: block;
  color: var(--muted);
  font-size: 14px;
  margin-top: 8px;
}

.section-more {
  margin-top: 36px;
  text-align: center;
}

/* ---------- 为什么选择 ---------- */
.why {
  background: var(--bg-soft);
}

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

.why-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

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

.why-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(245, 158, 11, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-deep);
}

.why-icon svg {
  width: 26px;
  height: 26px;
}

.why-card h3 {
  font-size: 17px;
  font-weight: 800;
  margin-top: 16px;
}

.why-card p {
  color: var(--muted);
  font-size: 14px;
  margin-top: 8px;
}

/* ---------- 首页 CTA ---------- */
.home-cta {
  background:
    radial-gradient(ellipse 55% 70% at 20% 0%, rgba(245, 158, 11, 0.12), transparent 60%),
    var(--bg-dark);
  color: #fff;
  text-align: center;
}

.home-cta .section-title {
  color: #fff;
}

.home-cta .section-sub {
  color: var(--on-dark-2);
}

/* ---------- 公司介绍 ---------- */
.about-intro {
  background: var(--bg);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.about-photo {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--line);
}

.about-photo img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.about-text .lead {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.6;
}

.about-text p {
  color: var(--ink-2);
  margin-top: 16px;
}

.about-text .about-loc {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 22px;
  color: var(--accent-deep);
  font-weight: 600;
  font-size: 15px;
}

.about-text .about-loc svg {
  width: 20px;
  height: 20px;
}

/* 工厂实力 */
.facility {
  background: var(--bg-soft);
}

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

.fac-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 22px;
  text-align: center;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

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

.fac-num {
  font-size: 34px;
  font-weight: 900;
  color: var(--accent-deep);
  line-height: 1.1;
}

.fac-card h3 {
  font-size: 17px;
  font-weight: 800;
  margin-top: 10px;
}

.fac-card p {
  color: var(--muted);
  font-size: 14px;
  margin-top: 8px;
}

/* 发展历程 */
.milestones {
  background: var(--bg);
}

.mile-list {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
}

.mile-list::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(var(--accent), rgba(245, 158, 11, 0.12));
}

.mile-item {
  position: relative;
  padding-left: 64px;
  padding-bottom: 34px;
}

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

.mile-dot {
  position: absolute;
  left: 12px;
  top: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg);
  border: 4px solid var(--accent);
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.5);
}

.mile-item h3 {
  font-size: 18px;
  font-weight: 800;
}

.mile-item p {
  color: var(--muted);
  font-size: 15px;
  margin-top: 6px;
}

/* ---------- 产品展示 ---------- */
.products-page {
  background: var(--bg);
}

.cat-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}

.cat-tab {
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink-2);
  font-size: 14px;
  font-weight: 600;
  min-height: 44px;
  transition: all 0.2s var(--ease);
}

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

.cat-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #101828;
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.35);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.grid-empty {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--muted);
  padding: 60px 0;
}

.product-card {
  text-align: left;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), border-color 0.25s var(--ease);
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(245, 158, 11, 0.55);
}

.product-img {
  display: block;
  background: #fff;
  overflow: hidden;
}

.product-img img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  transition: transform 0.4s var(--ease);
}

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

.product-info {
  display: block;
  padding: 16px 18px 18px;
}

.product-cat {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.product-name {
  display: block;
  font-size: 17px;
  font-weight: 800;
  color: var(--ink);
  margin-top: 6px;
}

.product-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  margin-top: 12px;
  transition: color 0.2s var(--ease);
}

.product-card:hover .product-more {
  color: var(--accent-deep);
}

/* ---------- 图片查看器 ---------- */
/* ---------- 产品详情页 ---------- */
.product-page {
  background: var(--bg);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-2);
  margin-bottom: 24px;
  transition: color 0.2s var(--ease);
}

.back-link:hover {
  color: var(--accent);
}

.product-detail {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 40px;
  align-items: start;
}

.pd-gallery {
  min-width: 0;
}

.pd-main {
  position: relative;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pd-main img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.pd-thumbs {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.pd-thumb {
  width: 76px;
  height: 76px;
  flex: 0 0 auto;
  border-radius: 8px;
  overflow: hidden;
  border: 2px solid transparent;
  opacity: 0.65;
  transition: all 0.2s var(--ease);
  background: #fff;
}

.pd-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pd-thumb:hover {
  opacity: 1;
}

.pd-thumb.active {
  border-color: var(--accent);
  opacity: 1;
}

.pd-info {
  min-width: 0;
}

.pd-name {
  font-size: clamp(24px, 3.2vw, 32px);
  line-height: 1.25;
  margin: 10px 0 14px;
  letter-spacing: -0.01em;
}

.pd-desc {
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 20px;
}

.pd-features {
  list-style: none;
  display: grid;
  gap: 10px;
  margin-bottom: 24px;
}

.pd-features li {
  position: relative;
  padding-left: 22px;
  color: var(--ink-2);
  font-size: 14px;
  line-height: 1.6;
}

.pd-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.58em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--accent);
}

.pd-block-title {
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 12px;
}

.pd-specs {
  border-top: 1px solid var(--line);
  padding-top: 20px;
  margin-bottom: 24px;
}

.pd-spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.pd-spec-table td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--line);
}

.pd-spec-table td:first-child {
  color: var(--ink-2);
  width: 46%;
}

.pd-spec-table td:last-child {
  font-weight: 700;
}

.pd-specs-note {
  margin-top: 12px;
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.7;
}

.pd-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.pd-related-block {
  margin-top: 56px;
  border-top: 1px solid var(--line);
  padding-top: 32px;
}

.pd-related-block .product-grid {
  margin-top: 20px;
}

@media (max-width: 900px) {
  .product-detail {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

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

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

.scene-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 22px;
  background: #fff;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

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

.scene-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(245, 158, 11, 0.12);
  color: var(--accent-deep);
  display: flex;
  align-items: center;
  justify-content: center;
}

.scene-icon svg {
  width: 26px;
  height: 26px;
}

.scene-card h3 {
  font-size: 17px;
  font-weight: 800;
  margin-top: 14px;
}

.scene-card p {
  color: var(--muted);
  font-size: 14px;
  margin-top: 8px;
}

/* 合作流程 */
.process {
  background: var(--bg-soft);
}

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

.proc-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

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

.proc-card::before {
  counter-increment: proc;
  content: counter(proc, decimal-leading-zero);
  font-size: 30px;
  font-weight: 900;
  color: rgba(245, 158, 11, 0.35);
  line-height: 1.1;
}

.proc-card h3 {
  font-size: 17px;
  font-weight: 800;
  margin-top: 10px;
}

.proc-card p {
  color: var(--muted);
  font-size: 14px;
  margin-top: 8px;
}

/* 案例占位区 */
.cases-note {
  background: var(--bg-soft);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 44px 30px;
  text-align: center;
}

.cases-note h3 {
  font-size: 18px;
  font-weight: 800;
}

.cases-note p {
  color: var(--muted);
  max-width: 620px;
  margin: 10px auto 0;
  font-size: 14px;
}

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

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
}

.contact-info-card {
  background: var(--bg-dark);
  color: #fff;
  border-radius: var(--radius);
  padding: 30px;
}

.contact-info-card h3 {
  font-size: 20px;
  font-weight: 800;
}

.contact-items {
  margin-top: 24px;
}

.contact-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
}

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

.contact-icon {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  border-radius: 10px;
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-2);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-icon svg {
  width: 22px;
  height: 22px;
}

.contact-item .ci-label {
  display: block;
  font-size: 13px;
  color: var(--on-dark-2);
  letter-spacing: 0.06em;
}

.contact-item .ci-value {
  display: block;
  font-size: 16px;
  font-weight: 700;
  margin-top: 3px;
  word-break: break-all;
}

.contact-item a.ci-value:hover {
  color: var(--accent-2);
}

/* 表单 */
.inquiry-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
}

.inquiry-card h3 {
  font-size: 20px;
  font-weight: 800;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 22px;
}

.form-field.full {
  grid-column: 1 / -1;
}

.form-field label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-2);
  margin-bottom: 6px;
}

.form-field input,
.form-field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-family: inherit;
  font-size: 15px;
  color: var(--ink);
  background: var(--bg);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
  min-height: 48px;
}

.form-field textarea {
  resize: vertical;
  min-height: 110px;
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.18);
}

.form-lead {
  margin: 6px 0 18px;
  font-size: 14px;
  line-height: 1.7;
  color: #94a3b8;
}

.inquiry-open {
  display: inline-block;
  text-decoration: none;
}

.form-submit {
  grid-column: 1 / -1;
  justify-self: start;
  margin-top: 6px;
}

.form-status {
  grid-column: 1 / -1;
  font-size: 14px;
  margin-top: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  display: none;
}

.form-status.ok {
  display: block;
  background: rgba(22, 163, 74, 0.10);
  color: #15803d;
}

.form-status.error {
  display: block;
  background: rgba(239, 68, 68, 0.10);
  color: #b91c1c;
}

.form-hint {
  grid-column: 1 / -1;
  font-size: 13px;
  color: var(--muted);
  margin-top: 8px;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--bg-dark);
  color: var(--on-dark-2);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.8fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand .brand-name {
  font-size: 20px;
}

.footer-desc {
  font-size: 14px;
  margin-top: 14px;
  max-width: 420px;
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col a {
  font-size: 14px;
  transition: color 0.2s var(--ease);
}

.footer-col a:hover {
  color: var(--accent-2);
}

.footer-contact li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
  margin-bottom: 12px;
}

.footer-contact svg {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  color: var(--accent);
  margin-top: 3px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 18px 0;
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- 视图切换 ---------- */
.view {
  display: none;
  padding-top: 72px;
}

.view.active {
  display: block;
  animation: viewIn 0.35s var(--ease);
}

@keyframes viewIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

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

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

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

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

@media (max-width: 860px) {
  .site-nav {
    display: none;
  }

  .burger {
    display: flex;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero {
    padding-top: 130px;
  }

  .hero-visual {
    order: -1;
  }

  .hero-card {
    width: min(360px, 88%);
  }

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

  .stat:nth-child(2) {
    border-right: none;
  }

  .stat:nth-child(-n+2) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

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

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

@media (max-width: 640px) {
  .section {
    padding: 64px 0;
  }

  .cats-grid,
  .scene-grid,
  .product-grid {
    grid-template-columns: 1fr;
  }

  .why-grid,
  .fac-grid,
  .proc-grid {
    grid-template-columns: 1fr;
  }

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

  .hero-title {
    font-size: 34px;
  }

  .brand-tag {
    display: none;
  }

  .stat-value {
    font-size: 30px;
  }
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  html {
    scroll-behavior: auto;
  }
}