/* ============================================================
 * 冠捷液压官网样式
 * 配色体系：深邃曜石 · 尊享领航 (Executive Obsidian & Champagne Gold)
 * ============================================================ */
:root {
  --navy-900: #0b0f19;
  --navy-800: #111827;
  --navy-700: #1f2937;
  --ink: #111827;
  --ink-2: #4b5563;
  --ink-3: #9ca3af;
  --line: #e5e7eb;
  --bg: #ffffff;
  --bg-soft: #faf8f5;
  --accent: #d4af37;
  --accent-dark: #b89628;
  --blue: #3b82f6;
  --radius: 10px;
  --shadow: 0 8px 28px rgba(0, 0, 0, .07);
  --shadow-lg: 0 20px 48px rgba(17, 24, 39, .12);
  --font: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.container { width: min(1200px, 92%); margin: 0 auto; }
.section { padding: 88px 0; }
.section.soft { background: var(--bg-soft); }

/* ---------- 通用标题 ---------- */
.sec-head { margin-bottom: 48px; }
.sec-head .eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--accent); font-weight: 700; font-size: 14px;
  letter-spacing: .18em; text-transform: uppercase;
}
.sec-head .eyebrow::before { content: ""; width: 34px; height: 2px; background: var(--accent); }
.sec-head h2 { font-size: clamp(26px, 3.4vw, 40px); line-height: 1.25; margin-top: 10px; letter-spacing: .01em; }
.sec-head p.sub { color: var(--ink-2); margin-top: 12px; max-width: 640px; }
.sec-head.center { text-align: center; }
.sec-head.center .eyebrow { justify-content: center; }
.sec-head.center p.sub { margin-left: auto; margin-right: auto; }
.sec-head.light h2, .sec-head.light p.sub { color: #fff; }
.sec-head.light p.sub { color: rgba(255,255,255,.72); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 30px; border-radius: 999px;
  font-weight: 600; font-size: 15px; transition: .25s;
}
.btn-primary {
  background: linear-gradient(135deg, #dfba45 0%, #b89125 100%);
  color: #0b0f19;
  font-weight: 700;
  box-shadow: 0 6px 20px rgba(184, 145, 37, .38);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #e5c355 0%, #c49d2f 100%);
  color: #000;
  transform: translateY(-2px);
}
.btn-ghost { border: 1.5px solid rgba(255,255,255,.5); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.12); }
.btn-outline { border: 1.5px solid var(--line); color: var(--ink); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- 顶部信息条 ---------- */
.topbar {
  background: #0b0f19;
  color: rgba(255, 255, 255, .78);
  font-size: 13px;
  border-bottom: 1px solid rgba(212, 175, 55, .22);
}
.topbar span svg { color: #d4af37; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; height: 38px; }
.topbar span { display: inline-flex; align-items: center; gap: 6px; }
.topbar .topbar-right { display: flex; gap: 22px; }

/* ---------- 导航 ---------- */
.navbar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.94); backdrop-filter: blur(12px);
  border-bottom: 2px solid #d4af37;
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.brand { display: flex; align-items: center; gap: 14px; }
.brand-logo {
  width: 46px; height: 46px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
  filter: drop-shadow(0 2px 5px rgba(0, 0, 0, .14));
  transition: transform .25s ease;
}
.brand:hover .brand-logo { transform: scale(1.05); }
.brand-name { font-weight: 800; font-size: 18px; line-height: 1.3; }
.brand-name small { display: block; font-size: 11px; font-weight: 500; color: var(--ink-3); letter-spacing: .08em; }
.nav-links { display: flex; gap: 6px; }
.nav-links a {
  padding: 9px 17px; border-radius: 999px; font-size: 15px; font-weight: 500;
  color: var(--ink-2); transition: .2s;
}
.nav-links a:hover { color: var(--accent); }
.nav-links a.active {
  background: #111827;
  color: #d4af37;
  border: 1px solid #d4af37;
  box-shadow: 0 4px 14px rgba(212, 175, 55, .2);
}
.nav-toggle { display: none; font-size: 24px; padding: 6px 10px; }

/* ---------- 首页 Hero ---------- */
.hero { position: relative; height: min(88vh, 720px); min-height: 520px; overflow: hidden; background: var(--navy-900); }
.hero-slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity 1s ease;
  display: flex; align-items: center;
}
.hero-slide.on { opacity: 1; }
.hero-slide::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(95deg, rgba(8,18,32,.85) 0%, rgba(8,18,32,.45) 42%, rgba(8,18,32,.05) 75%);
}
.hero-slide img.bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-content { position: relative; z-index: 2; color: #fff; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px; font-size: 14px; letter-spacing: .14em;
  color: #d4af37; border: 1px solid rgba(212, 175, 55, .5); background: rgba(212, 175, 55, .12); border-radius: 999px; padding: 7px 18px; margin-bottom: 24px;
}
.hero h1 { font-size: clamp(34px, 5.4vw, 62px); line-height: 1.18; font-weight: 800; max-width: 15em; }
.hero p { margin: 22px 0 36px; font-size: clamp(15px, 1.6vw, 18px); color: rgba(255,255,255,.88); max-width: 34em; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-dots { position: absolute; z-index: 3; bottom: 30px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; }
.hero-dots button { width: 34px; height: 4px; border-radius: 2px; background: rgba(255,255,255,.32); transition: .3s; }
.hero-dots button.on { background: #d4af37; }

/* ---------- 数据看板 ---------- */
.stats-band {
  background: #111827; color: #fff; padding: 46px 0;
  border-top: 1px solid rgba(212, 175, 55, .2);
  border-bottom: 1px solid rgba(212, 175, 55, .2);
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat { text-align: center; position: relative; }
.stat + .stat::before { content: ""; position: absolute; left: -12px; top: 15%; height: 70%; width: 1px; background: rgba(255,255,255,.14); }
.stat .num { font-size: clamp(30px, 3.6vw, 46px); font-weight: 800; color: #fff; }
.stat .num em { font-style: normal; font-size: .5em; color: var(--accent); margin-left: 2px; }
.stat .lbl { color: rgba(255,255,255,.62); font-size: 14px; margin-top: 6px; }

/* ---------- 关于我们（首页） ---------- */
.about-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 64px; align-items: center; }
.about-img { position: relative; }
.about-img img { border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.about-img::before {
  content: ""; position: absolute; inset: 22px -22px -22px 22px; z-index: -1;
  border-radius: var(--radius); background: linear-gradient(135deg, rgba(242,98,15,.18), rgba(31,111,214,.14));
}
.about-text p { color: var(--ink-2); margin: 18px 0 30px; }
.about-tag {
  display: inline-block; font-size: 12px; font-weight: 700;
  color: var(--accent); background: rgba(242,98,15,.1);
  padding: 4px 14px; border-radius: 999px; letter-spacing: .06em;
}
.about-text h3 {
  font-size: clamp(20px, 2.2vw, 26px); font-weight: 700;
  color: var(--navy-800); line-height: 1.35;
}
.about-strengths-wrap {
  margin-top: 56px; padding-top: 48px; border-top: 1px solid var(--line);
}
.about-strength-head { text-align: center; margin-bottom: 32px; }
.about-strength-head .sub-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 700; letter-spacing: .18em;
  color: var(--accent); text-transform: uppercase;
}
.about-strength-head .sub-eyebrow::before,
.about-strength-head .sub-eyebrow::after {
  content: ""; width: 26px; height: 2px; background: var(--accent);
}
.about-strength-head h3 {
  font-size: clamp(20px, 2.4vw, 28px); font-weight: 700;
  color: var(--navy-800); margin-top: 8px;
}

/* ---------- 关于我们：独立专属头部 Hero ---------- */
.about-hero {
  position: relative;
  background: #0b0f19;
  padding: 68px 0 60px;
  overflow: hidden;
  border-bottom: 1px solid rgba(212, 175, 55, 0.25);
}
.about-hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.about-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
  filter: blur(5px) saturate(1.2);
  transform: scale(1.05);
}
.about-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11, 15, 25, 0.96) 0%, rgba(17, 24, 39, 0.88) 55%, rgba(26, 38, 57, 0.78) 100%);
}
.about-hero-content {
  position: relative;
  z-index: 2;
  color: #fff;
}
.about-hero-crumb {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.about-hero-crumb a {
  color: rgba(255, 255, 255, 0.75);
  transition: color 0.2s ease;
}
.about-hero-crumb a:hover {
  color: var(--accent);
}
.about-hero-crumb .sep {
  opacity: 0.4;
}
.about-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #d4af37;
  background: rgba(212, 175, 55, 0.12);
  border: 1px solid rgba(212, 175, 55, 0.4);
  padding: 5px 16px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.about-hero-badge .badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #d4af37;
  box-shadow: 0 0 8px #d4af37;
}
.about-hero-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.about-hero-subtitle {
  font-size: clamp(15px, 1.5vw, 17px);
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.75;
  max-width: 880px;
  margin-bottom: 26px;
}
.about-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.hero-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 6px 14px;
  border-radius: 6px;
  backdrop-filter: blur(4px);
}

/* ---------- 关于我们：主体企业概况两栏 ---------- */
.about-overview-grid {
  display: grid;
  grid-template-columns: minmax(360px, 480px) 1fr;
  gap: 56px;
  align-items: start;
}
.about-visual-box {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.about-main-img-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--line);
}
.about-main-img-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.about-main-img-card:hover img {
  transform: scale(1.04);
}
.about-img-floating-tag {
  position: absolute;
  bottom: 12px;
  left: 12px;
  right: 12px;
  background: rgba(17, 24, 39, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #fff;
  border: 1px solid rgba(212, 175, 55, 0.35);
  font-size: 12px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
}
.about-img-floating-tag .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #d4af37;
  box-shadow: 0 0 6px #d4af37;
}
.about-mini-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.mini-stat-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 8px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.mini-stat-card:hover {
  transform: translateY(-3px);
  border-color: #d4af37;
}
.mini-stat-card .num {
  font-size: 22px;
  font-weight: 800;
  color: #111827;
  line-height: 1.2;
}
.mini-stat-card .num em {
  font-size: 13px;
  font-style: normal;
  color: #b89628;
  margin-left: 2px;
}
.mini-stat-card .label {
  font-size: 11.5px;
  color: var(--ink-3);
  margin-top: 4px;
  font-weight: 500;
}
.about-app-strip {
  background: #faf8f5;
  border: 1px dashed rgba(212, 175, 55, 0.4);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-size: 12.5px;
  color: var(--ink-2);
  display: flex;
  align-items: center;
  gap: 8px;
}
.about-app-strip strong {
  color: var(--navy-900);
  white-space: nowrap;
}

/* 右侧故事排版 */
.about-story-col {
  display: flex;
  flex-direction: column;
}
.about-story-header {
  margin-bottom: 24px;
}
.about-lead-card {
  background: linear-gradient(135deg, #faf7ef 0%, #ffffff 100%);
  border: 1px solid rgba(212, 175, 55, 0.3);
  border-left: 4px solid #d4af37;
  border-radius: var(--radius);
  padding: 18px 22px;
  margin-bottom: 20px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--navy-900);
  line-height: 1.8;
  box-shadow: 0 4px 16px rgba(212, 175, 55, 0.05);
}
.about-story-flow {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.about-story-item {
  font-size: 15px;
  color: var(--ink-2);
  line-height: 1.85;
  text-align: justify;
}
.about-story-item strong {
  color: var(--navy-900);
  font-weight: 600;
}

/* ---------- 关于我们：全宽品牌经营理念与承诺 ---------- */
.about-manifesto-band {
  background: linear-gradient(135deg, #0b0f19 0%, #111827 50%, #1a2333 100%);
  border-top: 1px solid rgba(212, 175, 55, 0.28);
  border-bottom: 1px solid rgba(212, 175, 55, 0.28);
  padding: 68px 0;
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.about-manifesto-band::before {
  content: "";
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}
.manifesto-inner {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
}
.manifesto-badge {
  width: 54px;
  height: 54px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: rgba(212, 175, 55, 0.15);
  border: 1.5px solid rgba(212, 175, 55, 0.45);
  display: grid;
  place-items: center;
  color: #d4af37;
  box-shadow: 0 0 20px rgba(212, 175, 55, 0.2);
}
.manifesto-tag {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: #d4af37;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.manifesto-title {
  font-size: clamp(22px, 2.8vw, 34px);
  font-weight: 800;
  color: #fff;
  line-height: 1.35;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}
.manifesto-desc {
  font-size: clamp(15px, 1.6vw, 17.5px);
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.8;
  margin-bottom: 34px;
}
.manifesto-pillars {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}
.m-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: #f3f4f6;
  backdrop-filter: blur(6px);
  transition: .25s ease;
}
.m-pill:hover {
  background: rgba(212, 175, 55, 0.14);
  border-color: rgba(212, 175, 55, 0.5);
  transform: translateY(-2px);
}
.m-pill .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #d4af37;
}

/* ---------- 实力卡片 ---------- */
.strength-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.strength-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; transition: .28s;
}
.strength-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 30px rgba(212, 175, 55, .12);
  border-color: #d4af37;
}
.strength-card .ic {
  width: 52px; height: 52px; border-radius: 13px; display: grid; place-items: center;
  background: #faf6eb;
  color: #b89628; margin-bottom: 18px;
}
.strength-card h3 { font-size: 17px; margin-bottom: 8px; }
.strength-card p { font-size: 14px; color: var(--ink-2); }

/* ---------- 权威资质与体系认证 ---------- */
.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.cert-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 24px; transition: .28s; position: relative; overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, .03);
}
.cert-card::before {
  content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 3px;
  background: linear-gradient(90deg, #b89628, #d4af37, #f3c74d); opacity: 0; transition: .28s;
}
.cert-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(212, 175, 55, .15);
  border-color: #d4af37;
}
.cert-card:hover::before { opacity: 1; }
.cert-card .cert-badge {
  width: 52px; height: 52px; border-radius: 13px; display: grid; place-items: center;
  background: #faf6eb; color: #b89628; margin-bottom: 18px;
}
.cert-card h3 { font-size: 17px; font-weight: 700; color: var(--navy-800); margin-bottom: 8px; line-height: 1.4; }
.cert-card .cert-no {
  display: inline-block; font-size: 12px; font-weight: 600; color: #b89628;
  background: #faf6eb; border: 1px solid rgba(212, 175, 55, .3);
  padding: 3px 9px; border-radius: 4px; margin-bottom: 12px; letter-spacing: .02em;
}
.cert-card p { font-size: 13.5px; color: var(--ink-2); line-height: 1.6; }

/* ---------- 产品 ---------- */
.cat-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 36px; }
.cat-chip {
  padding: 9px 20px; border-radius: 999px; border: 1.5px solid var(--line);
  font-size: 14px; font-weight: 500; color: var(--ink-2); transition: .2s; background: #fff;
}
.cat-chip:hover { border-color: var(--accent); color: var(--accent); }
.cat-chip.on { background: #111827; border-color: #d4af37; color: #d4af37; }

.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.product-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.p-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: .28s; display: flex; flex-direction: column;
}
.p-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 30px rgba(212, 175, 55, .12);
  border-color: #d4af37;
}
.p-thumb { aspect-ratio: 4/3; background: #eef2f6; overflow: hidden; position: relative; }
.p-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.p-card:hover .p-thumb img { transform: scale(1.06); }
.p-thumb .noimg {
  position: absolute; inset: 0; display: grid; place-items: center;
  color: var(--ink-3); font-size: 13px; letter-spacing: .1em;
  background: repeating-linear-gradient(45deg, #eef2f6, #eef2f6 12px, #e7edf3 12px, #e7edf3 24px);
}
.p-hot {
  position: absolute; top: 12px; left: 12px; z-index: 2;
  background: #111827; color: #d4af37; font-size: 12px; font-weight: 700;
  padding: 4px 12px; border-radius: 999px; letter-spacing: .06em;
  border: 1px solid #d4af37;
}
.p-body { padding: 18px 20px 22px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.p-model { font-size: 12px; font-weight: 700; letter-spacing: .14em; color: #b89628; }
.p-name { font-size: 16px; font-weight: 700; line-height: 1.45; }
.p-compat { font-size: 13px; color: var(--ink-3); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.p-link { margin-top: auto; padding-top: 10px; font-size: 14px; font-weight: 600; color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
.p-link::after { content: "→"; transition: transform .2s; }
.p-card:hover .p-link::after { transform: translateX(4px); }

/* ---------- 产品中心页布局 ---------- */
.prod-layout { display: grid; grid-template-columns: 250px 1fr; gap: 40px; align-items: start; }
.prod-side { position: sticky; top: 96px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.prod-side h3 { padding: 18px 22px; background: #111827; color: #fff; font-size: 16px; border-bottom: 2px solid #d4af37; }
.prod-side a { display: flex; justify-content: space-between; align-items: center; padding: 13px 22px; font-size: 14.5px; color: var(--ink-2); border-top: 1px solid var(--line); transition: .2s; }
.prod-side a:hover { color: var(--accent); background: var(--bg-soft); }
.prod-side a.on { color: #b89628; font-weight: 700; background: #fdfbf7; box-shadow: inset 3px 0 0 #d4af37; }
.prod-side a .cnt { font-size: 12px; color: var(--ink-3); }
.prod-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 18px; flex-wrap: wrap; }
.prod-toolbar .crumb { color: var(--ink-3); font-size: 14px; }
.search-box { position: relative; }
.search-box input {
  width: 260px; padding: 10px 16px 10px 40px; border: 1.5px solid var(--line);
  border-radius: 999px; font-size: 14px; font-family: inherit; outline: none; transition: .2s;
}
.search-box input:focus { border-color: var(--accent); }
.search-box svg { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--ink-3); }
.empty-tip { padding: 70px 0; text-align: center; color: var(--ink-3); }

/* ---------- 产品详情 ---------- */
.detail-layout { display: grid; grid-template-columns: 460px 1fr; gap: 48px; align-items: start; }
.gallery-main {
  border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; background: #fafbfc; cursor: zoom-in;
  aspect-ratio: 4/3; max-height: 380px;
  display: flex; align-items: center; justify-content: center;
}
.gallery-main img { width: 100%; height: 100%; object-fit: contain; padding: 12px; }
.gallery-thumbs { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.gallery-thumbs img {
  width: 76px; height: 60px; object-fit: cover; border-radius: 8px; cursor: pointer;
  border: 2px solid transparent; opacity: .7; transition: .2s;
}
.gallery-thumbs img.on, .gallery-thumbs img:hover { border-color: var(--accent); opacity: 1; }
.detail-info .p-model { font-size: 14px; }
.detail-info h1 { font-size: clamp(24px, 3vw, 34px); margin: 8px 0 14px; }
.detail-compat {
  display: inline-block; background: #faf6eb; color: #947113;
  font-size: 13.5px; font-weight: 600; border-radius: 8px; padding: 8px 14px; margin-bottom: 18px;
  border: 1px solid rgba(212, 175, 55, .3);
}
.detail-desc { color: var(--ink-2); margin-bottom: 24px; }
.detail-info h3 { font-size: 17px; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.detail-info h3::before { content: ""; width: 4px; height: 16px; border-radius: 2px; background: var(--accent); }
.feature-list li { position: relative; padding: 7px 0 7px 26px; color: var(--ink-2); font-size: 15px; }
.feature-list li::before {
  content: ""; position: absolute; left: 4px; top: 16px; width: 7px; height: 7px;
  border-radius: 50%; background: var(--accent);
}
.detail-actions { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }
.spec-block { margin-top: 64px; }
.spec-block h2 { font-size: 22px; margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.spec-block h2::before { content: ""; width: 4px; height: 20px; border-radius: 2px; background: var(--accent); }
.spec-img { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin-bottom: 18px; cursor: zoom-in; background: #fff; }
.spec-img img { width: 100%; }

/* 结构化规格内容（图纸 + HTML 参数表） */
.spec-drawing {
  border: 0; background: #fff;
  padding: 10px 16px; margin-bottom: 18px; cursor: zoom-in;
  display: grid; place-items: center;
}
.spec-drawing img {
  max-width: 100%;
  max-height: 250px;
  width: auto;
  height: auto;
  object-fit: contain;
}
.spec-table-wrap {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: #fff; overflow-x: auto;
}
.spec-table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 720px; }
.spec-table thead th {
  background: #111827; color: #fff; font-weight: 600; font-size: 13.5px;
  padding: 13px 14px; text-align: center; white-space: nowrap; letter-spacing: .02em;
  border-bottom: 2px solid #d4af37;
}
.spec-table tbody td { padding: 12px 14px; text-align: center; color: var(--ink-2); border-top: 1px solid var(--line); white-space: nowrap; }
.spec-table tbody tr:nth-child(even) { background: #faf8f5; }
.spec-table tbody tr:hover { background: #fbf8f0; }
.spec-table .model-cell { font-weight: 700; color: #111827; text-align: left; }

/* 表头主副标题排版 */
.spec-table thead th .th-main {
  display: block;
  font-weight: 700;
  font-size: 13px;
  line-height: 1.2;
}
.spec-table thead th .th-sub {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.15;
  margin-top: 2px;
  white-space: nowrap;
}

/* 宽表格 / 多列稠密表格 (如 GJ19，13列) 自适应全屏显示无需横向滚动 */
.spec-table.table-dense {
  width: 100%;
  table-layout: fixed;
  min-width: 740px;
  font-size: 12.5px;
}
.spec-table.table-dense thead th {
  padding: 9px 2px;
  font-size: 12px;
  white-space: normal;
  letter-spacing: 0;
  vertical-align: middle;
}
.spec-table.table-dense thead th .th-main {
  font-size: 12.5px;
  line-height: 1.2;
}
.spec-table.table-dense thead th .th-sub {
  font-size: 10.5px;
  margin-top: 1px;
}
.spec-table.table-dense thead th.col-type {
  font-size: 12.5px;
  padding: 9px 4px;
}
.spec-table.table-dense thead th.col-code {
  font-size: 12px;
  padding: 9px 2px;
}
.spec-table.table-dense thead th.col-dim {
  padding: 9px 1px;
}

.spec-table.table-dense tbody td {
  padding: 6px 2px;
  font-size: 12px;
  white-space: nowrap;
}
.spec-table.table-dense tbody td.code-cell {
  font-weight: 700;
  color: var(--navy-800);
  background: #f8fafc;
  font-size: 11.5px;
  padding: 6px 2px;
  border-right: 1px solid var(--line);
  text-align: center;
}
.spec-table.table-dense tbody td.dim-cell {
  text-align: center;
  font-variant-numeric: tabular-nums;
  padding: 6px 1px;
}

/* 零件图单元格在紧凑模式下的排版 */
.spec-table.table-dense tbody td.cell-with-img {
  background: #ffffff !important;
  vertical-align: middle;
  text-align: center;
  padding: 6px 3px !important;
  border-right: 1px solid var(--line);
}
.spec-table.table-dense .cell-thumb-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 2px;
}
.spec-table.table-dense .cell-thumb {
  max-width: 65px;
  max-height: 44px;
  width: auto;
  height: auto;
  object-fit: contain;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  padding: 2px;
  background: #ffffff;
  cursor: zoom-in;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.spec-table.table-dense .cell-thumb:hover {
  transform: scale(1.10);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.14);
  border-color: var(--accent);
}
.spec-table.table-dense .cell-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--navy-800);
  line-height: 1.15;
  margin-bottom: 1px;
}
.spec-table.table-dense .cell-desc {
  font-size: 10.5px;
  color: var(--ink-3);
  line-height: 1.15;
  white-space: normal;
}

/* 表格内嵌工程零件缩略图单元格 (常规规格表默认样式) */
.spec-table tbody td.cell-with-img {
  background: #ffffff !important;
  vertical-align: middle;
  text-align: center;
  padding: 12px 8px;
  border-right: 1px solid var(--line);
}
.cell-thumb-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 4px;
}
.cell-thumb {
  max-width: 90px;
  max-height: 65px;
  width: auto;
  height: auto;
  object-fit: contain;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  padding: 3px;
  background: #ffffff;
  cursor: zoom-in;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.cell-thumb:hover {
  transform: scale(1.06);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  border-color: var(--accent);
}
.cell-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--navy-800);
  line-height: 1.25;
  margin-bottom: 2px;
  white-space: normal;
}
.cell-desc {
  font-size: 11.5px;
  color: var(--ink-3);
  line-height: 1.25;
  white-space: normal;
}
.spec-note { margin-top: 16px; font-size: 13.5px; color: var(--ink-3); line-height: 1.8; }

/* 结构化规格多零件分区（如 GJ04 阴接头/阳接头分块布局） */
.spec-lead-block {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 24px; margin-bottom: 28px;
}
.spec-lead-title {
  font-size: 16px; font-weight: 700; color: var(--navy-800);
  margin-bottom: 12px; display: flex; align-items: center; gap: 8px;
}
.spec-lead-title::before {
  content: ""; width: 6px; height: 16px; border-radius: 2px; background: var(--accent);
}
.spec-lead-block .spec-drawing img {
  max-height: 280px; max-width: 100%; width: auto; height: auto; object-fit: contain;
}
.spec-part-block {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; margin-top: 28px;
}
.spec-part-header {
  display: flex; align-items: center; gap: 10px; margin-bottom: 16px;
}
.spec-part-badge {
  display: inline-block; font-size: 13px; font-weight: 700;
  padding: 3px 10px; border-radius: 6px;
  background: #faf6eb; color: #b89628;
}
.spec-part-title {
  font-size: 18px; font-weight: 700; color: var(--navy-800); margin: 0;
}
.spec-part-desc { font-size: 14px; color: var(--ink-2); margin-bottom: 14px; }
.spec-part-block .spec-drawing { margin-bottom: 18px; }
.spec-part-block .spec-drawing img {
  max-height: 240px; max-width: 100%; width: auto; height: auto; object-fit: contain;
}
.related-grid { margin-top: 20px; }

/* ---------- 应用领域 ---------- */
.app-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.app-card {
  background: var(--navy-700); border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius); padding: 30px 26px; color: #fff; transition: .28s;
}
.app-card:hover { transform: translateY(-6px); background: var(--navy-700); border-color: rgba(212,175,55,.6); }
.app-card .ic {
  width: 50px; height: 50px; border-radius: 13px; display: grid; place-items: center;
  background: rgba(212,175,55,.16); color: #d4af37; margin-bottom: 18px;
}
.app-card h3 { font-size: 17px; margin-bottom: 8px; }
.app-card p { font-size: 14px; color: rgba(255,255,255,.66); }
.dark-band { background: var(--navy-800); }

/* ---------- 重点合作客户 ---------- */
.client-section { background: #fff; }
.client-section.soft { background: var(--bg-soft); }
.client-section.soft .client-trust-bar { background: #fff; box-shadow: 0 4px 16px rgba(10, 20, 32, .04); }
.client-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.client-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 20px 22px; position: relative; overflow: hidden;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  transition: .28s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 16px rgba(10, 20, 32, .03);
  text-decoration: none;
}
.client-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, #d4af37, #f5d77f);
  opacity: 0; transition: opacity .25s ease;
}
.client-card:hover {
  transform: translateY(-5px); border-color: rgba(212, 175, 55, .45);
  box-shadow: var(--shadow);
}
.client-card:hover::before { opacity: 1; }
.client-logo-box {
  height: 52px; width: 100%; display: flex; align-items: center; justify-content: center;
}
.client-logo-box img {
  max-height: 48px; max-width: 90%; width: auto; height: auto; object-fit: contain;
  transition: transform .25s ease;
}
.client-card:hover .client-logo-box img { transform: scale(1.04); }
.client-short { font-size: 18px; font-weight: 800; color: var(--navy-800); }
.client-name {
  font-size: 13px; font-weight: 500; color: var(--ink-2);
  margin-top: 14px; width: 100%; text-align: center;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block;
  transition: color .2s;
}
.client-card:hover .client-name { color: var(--navy-800); }
.client-trust-bar {
  margin-top: 40px; padding: 18px 28px; background: var(--bg-soft);
  border-radius: var(--radius); border: 1px solid var(--line);
  display: flex; justify-content: space-around; align-items: center; flex-wrap: wrap; gap: 16px;
  font-size: 14px; color: var(--ink-2); font-weight: 500;
}
.trust-item { display: inline-flex; align-items: center; gap: 8px; }
.trust-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #d4af37; box-shadow: 0 0 0 3px rgba(212, 175, 55, .25);
}

/* ---------- 新闻 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.news-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 26px; transition: .28s; display: flex; flex-direction: column; gap: 12px;
}
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.news-date { font-size: 13px; color: #b89628; font-weight: 700; letter-spacing: .08em; }
.news-card h3 { font-size: 17px; line-height: 1.5; }
.news-card p { font-size: 14px; color: var(--ink-2); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.news-list { display: flex; flex-direction: column; gap: 18px; }
.news-item {
  display: grid; grid-template-columns: 110px 1fr; gap: 26px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 30px; transition: .25s;
}
.news-item:hover { box-shadow: var(--shadow); }
.news-item .date-box { text-align: center; border-right: 1px dashed var(--line); padding-right: 22px; }
.news-item .date-box .d { font-size: 30px; font-weight: 800; color: var(--navy-800); }
.news-item .date-box .ym { font-size: 13px; color: var(--ink-3); }
.news-item h3 { font-size: 18px; margin-bottom: 8px; }
.news-item p { font-size: 14.5px; color: var(--ink-2); }
.news-detail-body { max-width: 820px; }
.news-detail-body .meta { color: var(--ink-3); font-size: 14px; margin: 10px 0 30px; }
.news-detail-body p.para { margin-bottom: 18px; color: var(--ink-2); white-space: pre-line; }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; align-items: stretch; }
.contact-cards { display: flex; flex-direction: column; gap: 16px; }
.contact-card {
  display: flex; gap: 18px; align-items: flex-start; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 26px;
}
.contact-card .ic {
  flex: none; width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center;
  background: #faf6eb; color: #b89628;
}
.contact-card h3 { font-size: 15px; color: var(--ink-3); font-weight: 600; margin-bottom: 4px; }
.contact-card p { font-size: 16.5px; font-weight: 600; }
.contact-card p + p { margin-top: 8px; }
.tag-wechat { font-weight: 500; font-size: 14px; color: var(--ink-3); margin-left: 2px; white-space: nowrap; display: inline-block; }
.contact-cta {
  background: linear-gradient(135deg, #0b0f19, #1f2937);
  border-radius: var(--radius); color: #fff; padding: 46px 42px;
  display: flex; flex-direction: column; justify-content: center; gap: 18px;
  border: 1px solid rgba(212, 175, 55, .25);
}
.contact-cta h3 { font-size: 26px; }
.contact-cta p { color: rgba(255,255,255,.72); }
.contact-cta .cta-features {
  display: flex; flex-direction: column; gap: 14px; margin: 4px 0;
  padding: 16px 0; border-top: 1px solid rgba(255,255,255,.12); border-bottom: 1px solid rgba(255,255,255,.12);
}
.contact-cta .cta-feat-item { display: flex; align-items: flex-start; gap: 14px; }
.contact-cta .cta-feat-icon {
  width: 38px; height: 38px; border-radius: 10px; background: rgba(255,255,255,.08);
  display: grid; place-items: center; font-size: 19px; flex-shrink: 0;
}
.contact-cta .cta-feat-item strong { display: block; font-size: 15px; color: #fff; margin-bottom: 3px; font-weight: 600; }
.contact-cta .cta-feat-item span { font-size: 13px; color: rgba(255,255,255,.68); line-height: 1.5; }
.contact-cta .cta-hint {
  font-size: 13.5px; color: rgba(255,255,255,.85); background: rgba(255,255,255,.06);
  padding: 12px 16px; border-radius: 8px; border-left: 3px solid #d4af37; line-height: 1.5;
}

/* ---------- CTA 横幅 ---------- */
.cta-band {
  background: linear-gradient(120deg, #0b0f19, #1f2937 70%), #111827;
  color: #fff; border-radius: 18px; padding: 56px 60px;
  display: flex; justify-content: space-between; align-items: center; gap: 30px; flex-wrap: wrap;
  border: 1px solid rgba(212, 175, 55, .25);
}
.cta-band h2 { font-size: clamp(22px, 2.8vw, 32px); }
.cta-band p { color: rgba(255,255,255,.7); margin-top: 8px; }

/* ---------- 页脚 ---------- */
footer { background: #0b0f19; color: rgba(255,255,255,.66); margin-top: 0; }
.footer-main { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 44px; padding: 64px 0 46px; }
/* 当在“联系我们”页面时，隐藏页脚底部的重复联系方式列，精简底部信息 */
body[data-route="contact"] .footer-contact-col { display: none; }
@media (min-width: 1025px) {
  body[data-route="contact"] .footer-main { grid-template-columns: 1.6fr 1.1fr 1.1fr; }
}
.footer-main h4 { color: #fff; font-size: 16px; margin-bottom: 18px; }
.footer-main a, .footer-main p { display: block; font-size: 14px; padding: 5px 0; color: rgba(255,255,255,.6); transition: .2s; }
.footer-main a:hover { color: var(--accent); }
.footer-brand .brand-name { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 20px 0; font-size: 13px; display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
.footer-bottom a { transition: color .2s; }
.footer-bottom a:hover { color: var(--accent) !important; text-decoration: underline !important; }

/* ---------- 详情页轻量面包屑（行内小字，不占整栏） ---------- */
.detail-crumb {
  font-size: 13.5px;
  color: #9ca3af;
  margin-bottom: 24px;
}
.detail-crumb a {
  color: #4b5563;
  transition: color 0.2s ease;
}
.detail-crumb a:hover {
  color: var(--gold, #d4af37);
}
.detail-crumb span {
  color: var(--navy-900, #111827);
  font-weight: 600;
}

/* ---------- 二级子页面首屏紧凑间距（直接衔接顶部导航） ---------- */
.section.subpage-first {
  padding-top: 48px;
  padding-bottom: 72px;
}

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 200; background: rgba(8,14,24,.92);
  display: grid; place-items: center; padding: 4vh 4vw;
}
.lightbox[hidden] { display: none; }
.lightbox img { max-width: 100%; max-height: 92vh; border-radius: 8px; box-shadow: var(--shadow-lg); }
.lightbox-close { position: absolute; top: 22px; right: 30px; color: #fff; font-size: 40px; line-height: 1; }

/* ---------- 动效 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .product-grid, .strength-grid, .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid.cols-3, .app-grid, .news-grid, .client-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .about-overview-grid, .detail-layout, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .prod-layout { grid-template-columns: 1fr; }
  .prod-side { position: static; }
}
@media (max-width: 640px) {
  .section { padding: 60px 0; }
  .section.subpage-first { padding-top: 32px; padding-bottom: 50px; }
  .about-hero { padding: 44px 0 36px; }
  .about-mini-stats { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .mini-stat-card { padding: 10px 4px; }
  .mini-stat-card .num { font-size: 18px; }
  .about-manifesto-band { padding: 50px 0; }
  .manifesto-pillars { flex-direction: column; align-items: stretch; gap: 10px; }
  .detail-crumb { margin-bottom: 16px; font-size: 12.5px; }
  .topbar { display: none; }
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: 74px; left: 0; right: 0; background: #fff;
    flex-direction: column; padding: 12px 4%; gap: 2px;
    border-bottom: 1px solid var(--line); display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 13px 16px; border-radius: 10px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 30px 12px; }
  .stat + .stat::before { display: none; }
  .product-grid, .product-grid.cols-3, .strength-grid, .cert-grid, .app-grid, .news-grid { grid-template-columns: 1fr; }
  .client-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .client-card { padding: 18px 12px 14px; }
  .client-logo-box { height: 42px; }
  .client-logo-box img { max-height: 38px; }
  .client-name { font-size: 11.5px; margin-top: 8px; }
  .client-trust-bar { flex-direction: column; align-items: flex-start; padding: 18px 20px; gap: 12px; }
  .news-item { grid-template-columns: 1fr; gap: 12px; }
  .news-item .date-box { border-right: none; border-bottom: 1px dashed var(--line); padding: 0 0 12px; text-align: left; display: flex; gap: 10px; align-items: baseline; }
  .cta-band { padding: 40px 28px; }
  .footer-main { grid-template-columns: 1fr; gap: 28px; }
  .search-box input { width: 100%; }
  .hero-slide::after {
    background: linear-gradient(180deg, rgba(8,18,32,.88) 0%, rgba(8,18,32,.72) 65%, rgba(8,18,32,.5) 100%);
  }
  .hero-slide img.bg { object-position: 65% center; }
  .hero h1 { text-shadow: 0 2px 12px rgba(0,0,0,.5); }
}