@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;600;700;900&family=Noto+Sans+SC:wght@300;400;500;600;700&display=swap');

/* ===== 品牌变量 ===== */
:root {
  --red: #8B1A2B;
  --red-dark: #6B1321;
  --red-light: #A8323C;
  --gold: #C9A96E;
  --gold-light: #D4BA8A;
  --gold-pale: #EDE4D0;
  --dark: #1C1410;
  --dark2: #2C2018;
  --muted: #6B5E52;
  --muted-light: #94887C;
  --beige: #FDF8F0;
  --beige-warm: #F5EDE0;
  --white: #FFFCF7;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 2px 16px rgba(28,20,16,0.06);
  --shadow-lg: 0 8px 40px rgba(28,20,16,0.1);
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-display: "Noto Serif SC", "PingFang SC", "Microsoft YaHei", serif;
}

/* ===== 基础重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-size: 16px; line-height: 1.8; color: var(--dark);
  background: var(--white); min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }

/* ===== 首页品质徽章条 ===== */
.quality-badge-bar {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark2) 100%);
  padding: 28px 0; text-align: center;
  border-bottom: 2px solid var(--gold);
}
.quality-badge-bar a {
  display: inline-flex; align-items: center; gap: 12px;
  color: #fff; transition: all .3s;
}
.quality-badge-bar a:hover { transform: translateY(-2px); }
.quality-badge-icon {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--red); display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; flex-shrink: 0;
}
.quality-badge-text { text-align: left; }
.quality-badge-text strong { display: block; font-family: var(--font-display); font-size: 1.1rem; letter-spacing: 2px; color: var(--gold-light); }
.quality-badge-text span { font-size: 0.8rem; color: rgba(255,255,255,0.55); }
.quality-badge-arrow { font-size: 1.2rem; color: var(--gold); margin-left: 8px; }

/* ===== 品质承诺区块（品牌文化页） ===== */
.quality-pledge { padding: 80px 0; background: var(--white); }
.pledge-header { text-align: center; margin-bottom: 48px; }
.pledge-header h2 {
  font-family: var(--font-display);
  font-size: 2rem; font-weight: 700; color: var(--dark);
  margin-bottom: 8px; letter-spacing: 2px;
}
.pledge-header p { color: var(--muted-light); }
.pledge-summary {
  max-width: 800px; margin: 0 auto 40px;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px;
}
.pledge-stat {
  display: flex; gap: 16px; align-items: center;
  padding: 20px 24px; background: var(--beige);
  border-radius: var(--radius-lg);
}
.pledge-stat-icon { font-size: 2rem; flex-shrink: 0; }
.pledge-stat-info strong { display: block; font-size: 0.95rem; color: var(--dark); }
.pledge-stat-info span { font-size: 0.82rem; color: var(--muted-light); }
.pledge-more { text-align: center; margin-bottom: 48px; }

/* ===== 品质认证页 ===== */
.quality-hero {
  background: linear-gradient(170deg, var(--dark) 0%, var(--dark2) 50%, var(--dark) 100%);
  padding: 140px 0 72px; text-align: center; color: #fff;
}
.quality-hero h1 {
  font-family: var(--font-display);
  font-size: 2.6rem; font-weight: 700; letter-spacing: 3px;
  margin-bottom: 12px;
}
.quality-hero p { color: var(--gold-light); font-size: 1.05rem; letter-spacing: 2px; }

.report-overview {
  max-width: 800px; margin: 0 auto 60px;
  background: var(--white); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); overflow: hidden;
}
.report-overview-header {
  background: var(--dark); color: #fff; padding: 28px 36px;
  display: flex; align-items: center; gap: 16px;
}
.report-overview-header .ro-icon { font-size: 2rem; }
.report-overview-header h2 {
  font-family: var(--font-display);
  font-size: 1.3rem; font-weight: 700; letter-spacing: 2px;
}
.report-overview-header p { color: rgba(255,255,255,0.5); font-size: 0.85rem; }
.report-overview-body { padding: 0; }
.ro-row { display: flex; border-bottom: 1px solid var(--beige-warm); }
.ro-row:last-child { border-bottom: none; }
.ro-label {
  flex: 0 0 120px; padding: 14px 20px;
  background: var(--beige-warm); font-size: 0.85rem; font-weight: 600; color: var(--dark);
}
.ro-value { flex: 1; padding: 14px 20px; font-size: 0.9rem; color: var(--muted); }

/* 检测结果表格 */
.result-table { max-width: 900px; margin: 0 auto 60px; }
.result-table .section-head { margin-bottom: 36px; }
.result-table-wrap {
  background: var(--white); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); overflow: hidden;
}
.rt-row { display: flex; border-bottom: 1px solid var(--beige-warm); }
.rt-row:last-child { border-bottom: none; }
.rt-header { background: var(--red); color: #fff; font-weight: 600; font-size: 0.85rem; letter-spacing: 1px; }
.rt-header .rt-cell { padding: 14px 12px; }
.rt-cell { padding: 14px 12px; font-size: 0.88rem; }
.rt-cell.idx { flex: 0 0 48px; text-align: center; }
.rt-cell.name { flex: 1 1 140px; font-weight: 500; color: var(--dark); }
.rt-cell.standard { flex: 1 1 200px; color: var(--muted); font-size: 0.82rem; }
.rt-cell.result { flex: 1 1 160px; color: var(--dark); font-weight: 500; }
.rt-cell.status { flex: 0 0 80px; text-align: center; font-weight: 600; }
.rt-cell.status.pass { color: #2D8B3C; }
.rt-row:hover { background: var(--beige); }

/* 结论区块 */
.conclusion-box {
  max-width: 700px; margin: 0 auto 60px;
  padding: 36px 40px; background: linear-gradient(135deg, var(--white) 0%, var(--beige) 100%);
  border-radius: var(--radius-lg); box-shadow: var(--shadow);
  border-left: 4px solid #2D8B3C;
}
.conclusion-box h3 {
  font-family: var(--font-display);
  font-size: 1.3rem; font-weight: 700; color: var(--dark);
  margin-bottom: 12px; display: flex; align-items: center; gap: 10px;
}
.conclusion-box p { color: var(--muted); line-height: 1.9; font-size: 1.02rem; }

/* 报告图片画廊 */
.report-gallery { max-width: 900px; margin: 0 auto 60px; }
.report-gallery .section-head { margin-bottom: 36px; }
.report-tabs { display: flex; gap: 8px; justify-content: center; margin-bottom: 32px; flex-wrap: wrap; }
.report-tab {
  padding: 8px 24px; border-radius: 50px;
  border: 1px solid var(--gold-pale); background: var(--white);
  font-size: 0.85rem; color: var(--muted); cursor: pointer;
  transition: all .3s;
}
.report-tab:hover { border-color: var(--gold); }
.report-tab.active { background: var(--red); color: #fff; border-color: var(--red); }
.report-page-img {
  width: 100%; border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); display: none;
}
.report-page-img.active { display: block; }

@media (max-width: 768px) {
  .pledge-summary { grid-template-columns: 1fr; max-width: 400px; }
  .rt-row { font-size: 0.8rem; }
  .rt-cell.idx { flex: 0 0 36px; }
  .rt-cell.name { flex: 1 1 100px; }
  .rt-cell.standard { flex: 1 1 140px; font-size: 0.75rem; }
  .rt-cell.result { flex: 1 1 100px; font-size: 0.8rem; }
  .rt-cell.status { flex: 0 0 60px; }
  .ro-label { flex: 0 0 90px; }
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 820px; margin: 100px auto 0; padding: 0 24px; }
.container-narrow h1,
.container-narrow h2,
.container-narrow h3 { color: var(--dark); }
.container-narrow h1 {
  font-family: var(--font-display);
  font-size: 1.8rem; font-weight: 700; margin: 24px 0 12px;
  line-height: 1.4;
}
.container-narrow h2 {
  font-family: var(--font-display);
  font-size: 1.4rem; font-weight: 700; margin: 32px 0 8px;
  line-height: 1.4;
}
.container-narrow h3 {
  font-family: var(--font-display);
  font-size: 1.1rem; font-weight: 600; margin: 24px 0 6px;
}
.container-narrow p {
  color: var(--muted); line-height: 2; margin-bottom: 16px;
}
.container-narrow ol, .container-narrow ul {
  color: var(--muted); line-height: 2; margin-bottom: 16px;
  padding-left: 24px; list-style: disc;
}
.container-narrow ol { list-style: decimal; }
.container-narrow strong { color: var(--dark); }
.container-narrow .date {
  color: var(--muted-light); font-size: 0.85rem; margin-bottom: 24px;
}
.container-narrow hr { border: none; border-top: 1px solid var(--gold-pale); }

/* ===== 博客CTA区 ===== */
.cta {
  text-align: center; padding: 60px 24px;
  background: var(--beige); margin-top: 60px;
}
.cta h2 {
  font-family: var(--font-display);
  font-size: 1.6rem; font-weight: 700; color: var(--dark);
  margin-bottom: 8px;
}
.cta p { color: var(--muted); }
.cta .phone {
  font-size: 1.3rem; color: var(--red); font-weight: 700; margin-top: 8px;
}

.section { padding: 100px 0; }
.section-alt { background: var(--beige); }
.section-panel {
  background: var(--white);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  box-shadow: 0 -4px 24px rgba(28,20,16,0.08);
  position: relative; z-index: 2;
  margin-top: -24px;
  padding-top: 80px;
}

/* ===== 区块标题 ===== */
.section-head { text-align: center; margin-bottom: 60px; }
.section-head h2 {
  font-family: var(--font-display);
  font-size: 2.4rem; font-weight: 700; color: var(--dark);
  margin-bottom: 12px; letter-spacing: 2px;
}
.section-sub { color: var(--muted-light); font-size: 1.05rem; }
.section-more { text-align: center; margin-top: 48px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-block; padding: 14px 40px; border-radius: 50px;
  font-weight: 600; font-size: 1rem; transition: all .3s;
  letter-spacing: 1px; cursor: pointer;
}
.btn-gold {
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: var(--dark); box-shadow: 0 4px 20px rgba(201,169,110,0.35);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 6px 28px rgba(201,169,110,0.5); }
.btn-outline {
  border: 1.5px solid rgba(255,255,255,0.4); color: #fff;
}
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,0.1); }
.btn-outline-dark {
  border: 1.5px solid var(--gold); color: var(--dark);
}
.btn-outline-dark:hover { background: var(--gold); color: #fff; }

/* ===== 图片占位 ===== */
.img-placeholder {
  width: 100%; height: 100%; min-height: 240px;
  background: linear-gradient(135deg, #E8E0D4 0%, #DFD5C5 50%, #E8E0D4 100%);
  display: flex; align-items: center; justify-content: center;
  color: var(--muted-light); font-size: 1rem; letter-spacing: 4px;
  border-radius: var(--radius-lg);
}

/* ==================== 导航 ==================== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 0; transition: all .3s;
  background: rgba(28,20,16,0.88); backdrop-filter: blur(8px);
}
.header.scrolled { background: rgba(28,20,16,0.95); backdrop-filter: blur(8px); box-shadow: 0 2px 20px rgba(0,0,0,0.2); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.logo {
  display: flex; align-items: center; gap: 10px; text-decoration: none;
}
.logo-icon-img {
  height: 44px; width: auto;
  display: block; flex-shrink: 0;
}
.logo-text {
  font-family: var(--serif);
  font-size: 0.95rem; color: rgba(255,255,255,0.88);
  letter-spacing: 0.5px; white-space: nowrap;
}
.logo-img {
  height: 48px; width: auto;
  display: block;
}
.nav { display: flex; gap: 32px; }
.nav a {
  font-size: 0.95rem; color: rgba(255,255,255,0.75); letter-spacing: 1px;
  transition: color .2s; position: relative;
}
.nav a::after {
  content: ''; position: absolute; bottom: -4px; left: 0; right: 0;
  height: 2px; background: var(--gold); transform: scaleX(0); transition: transform .3s;
}
.nav a:hover { color: #fff; }
.nav a:hover::after { transform: scaleX(1); }
.menu-btn {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.menu-btn span {
  width: 24px; height: 2px; background: #fff; transition: all .3s;
}
.menu-btn.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.menu-btn.open span:nth-child(2) { opacity: 0; }
.menu-btn.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ==================== Hero ==================== */
.hero {
  position: relative; width: 100%; height: 600px; max-height: 65vh;
  overflow: hidden; background: #1a1008;
}

/* 轮播图容器 */
.hero-slider { position: absolute; inset: 0; }
.hero-slide {
  position: absolute; inset: 0;
  background-size: contain; background-position: center;
  background-repeat: no-repeat;
  opacity: 0; transition: opacity 1.2s ease-in-out;
  z-index: 0;
}
.hero-slide.active { opacity: 1; z-index: 1; }

/* 轮播指示点 */
.hero-dots {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  z-index: 10; display: flex; gap: 10px;
}
.hero-dots .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: rgba(255,255,255,0.4); cursor: pointer;
  transition: all .3s;
}
.hero-dots .dot.active { background: var(--gold); width: 28px; border-radius: 5px; }

.hero-overlay {
  position: absolute; inset: 0; z-index: 5;
  background: linear-gradient(to bottom, rgba(28,20,16,0.25) 0%, rgba(28,20,16,0.65) 100%);
  display: flex; align-items: center;
}
.hero-content { text-align: center; color: #fff; }
.hero-content h1 {
  font-family: var(--font-display);
  font-size: 3.4rem; font-weight: 800; line-height: 1.35;
  margin-bottom: 20px; letter-spacing: 3px;
}
.hero-content h1 .gold { color: var(--gold-light); }
.hero-sub {
  font-size: 1.15rem; color: rgba(255,255,255,0.75);
  letter-spacing: 6px; margin-bottom: 40px;
}
.hero-btns { display: flex; gap: 20px; justify-content: center; }

/* ==================== 关于我们 ==================== */
.about-layout { display: flex; gap: 72px; align-items: center; }
.about-text { flex: 1; }
.about-text p {
  margin-bottom: 18px; color: var(--muted); font-size: 1.02rem;
  line-height: 1.9;
}
.about-text strong { color: var(--dark); font-weight: 600; }
.about-stats {
  flex: 0 0 320px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.stat-item {
  background: var(--white);
  border: 1px solid var(--gold-pale);
  border-radius: var(--radius-lg);
  padding: 28px 20px; text-align: center;
  transition: all .3s;
}
.stat-item:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem; font-weight: 700; color: var(--red);
  line-height: 1.3;
}
.stat-unit { font-size: 0.85rem; color: var(--muted-light); font-weight: 400; }
.stat-label {
  display: block;
  font-size: 0.85rem; color: var(--muted-light); margin-top: 6px;
}

/* ==================== 产品中心 ==================== */
.product-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px;
}
.product-card {
  background: var(--white); border-radius: var(--radius-lg);
  overflow: hidden; transition: all .4s;
  box-shadow: var(--shadow);
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.product-img { aspect-ratio: 3/4; overflow: hidden; }
.product-img .img-placeholder {
  width: 100%; height: 100%; min-height: auto; border-radius: 0;
  background: linear-gradient(135deg, #F5EDE0 0%, #EDE4D0 100%);
}
.product-info { padding: 20px; text-align: center; }
.product-tag {
  display: inline-block; padding: 3px 12px; border-radius: 20px;
  background: var(--gold-pale); color: var(--muted);
  font-size: 0.75rem; letter-spacing: 1px; margin-bottom: 8px;
}
.product-info h3 {
  font-family: var(--font-display);
  font-size: 1.2rem; font-weight: 700; color: var(--dark); margin-bottom: 6px;
}
.product-desc { font-size: 0.85rem; color: var(--muted-light); }

/* ==================== 品牌文化 ==================== */
.culture-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px;
}
.culture-card {
  text-align: center; padding: 40px 24px;
  background: var(--white); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); transition: all .3s;
  border-top: 3px solid transparent;
}
.culture-card:hover {
  border-top-color: var(--red); transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.culture-icon { font-size: 2.8rem; margin-bottom: 16px; }
.culture-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem; font-weight: 700; color: var(--dark); margin-bottom: 10px;
}
.culture-card p { font-size: 0.9rem; color: var(--muted); line-height: 1.8; }

/* ==================== 文化故事 ==================== */
.story-layout { display: flex; gap: 64px; align-items: center; }
.story-img { flex: 1; }
.story-img .img-placeholder { aspect-ratio: 4/3; }
.story-pic { width: 100%; height: auto; border-radius: var(--radius-lg); display: block; object-fit: cover; aspect-ratio: 4/3; }
.story-text { flex: 1; }
.story-text h2 {
  font-family: var(--font-display);
  font-size: 2rem; font-weight: 700; color: var(--dark);
  margin-bottom: 24px; letter-spacing: 2px;
}
.story-text p {
  margin-bottom: 16px; color: var(--muted); font-size: 1.02rem;
  line-height: 2;
}
.story-text strong { color: var(--red); }

/* ==================== 新闻动态 ==================== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.news-card {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 32px 24px; box-shadow: var(--shadow);
  transition: all .3s; display: block;
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.news-date {
  font-family: var(--font-display);
  font-size: 0.85rem; color: var(--red); letter-spacing: 2px;
  margin-bottom: 12px;
}
.news-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem; font-weight: 600; color: var(--dark);
  margin-bottom: 8px; line-height: 1.6;
}
.news-card p { font-size: 0.9rem; color: var(--muted-light); line-height: 1.7; }

/* ==================== 联系我们 ==================== */
.contact-layout { display: flex; gap: 48px; }
.contact-map {
  flex: 1;
  min-height: 320px;
}
.contact-map .img-placeholder { min-height: 320px; }
.contact-info { flex: 1; display: flex; flex-direction: column; gap: 20px; }
.contact-item {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 16px 20px; background: var(--white); border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.contact-icon { font-size: 1.5rem; flex-shrink: 0; }
.contact-item strong { display: block; font-size: 0.95rem; color: var(--dark); margin-bottom: 2px; }
.contact-item p { font-size: 0.85rem; color: var(--muted-light); }
.contact-qr {
  display: flex; align-items: center; gap: 16px;
  padding: 20px; background: var(--white); border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.qr-placeholder {
  width: 80px; height: 80px; background: var(--beige-warm);
  border-radius: 8px; display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem; color: var(--muted-light); text-align: center;
  line-height: 1.4;
}
.contact-qr span { font-size: 0.9rem; color: var(--muted); }

/* 首页简洁联系区 */
.contact-mini { display: flex; gap: 32px; max-width: 960px; margin: 0 auto; }
.contact-mini-item {
  flex: 1; padding: 28px 24px;
  background: var(--white); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); text-align: center;
  transition: all .3s;
}
.contact-mini-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.cm-icon { font-size: 1.8rem; display: block; margin-bottom: 10px; }
.contact-mini-item strong { display: block; color: var(--dark); font-size: 0.95rem; margin-bottom: 4px; }
.contact-mini-item p { font-size: 0.85rem; color: var(--muted-light); line-height: 1.6; }

/* ==================== 页脚 ==================== */
.footer {
  background: var(--dark); color: rgba(255,255,255,0.6); padding: 64px 0 0;
}
.footer-layout {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px; padding-bottom: 48px;
}
.footer-brand h3 {
  font-family: var(--font-display);
  font-size: 1.4rem; color: #fff; margin-bottom: 12px; letter-spacing: 2px;
}
.footer-brand p { font-size: 0.85rem; margin-bottom: 4px; }
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links strong { color: #fff; font-size: 0.95rem; margin-bottom: 8px; }
.footer-links a, .footer-links span {
  font-size: 0.85rem; color: rgba(255,255,255,0.5); transition: color .2s;
}
.footer-links a:hover { color: var(--gold-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0; text-align: center; font-size: 0.8rem;
}

/* ==================== 产品分类页 ==================== */
.cat-nav {
  display: flex; gap: 8px; justify-content: center; flex-wrap: wrap;
  margin-bottom: 56px;
}
.cat-nav a {
  display: inline-block; padding: 10px 24px; border-radius: 50px;
  font-size: 0.9rem; color: var(--muted);
  border: 1px solid var(--gold-pale);
  transition: all .3s;
}
.cat-nav a:hover { border-color: var(--gold); color: var(--dark); }
.cat-nav a.active {
  background: var(--red); color: #fff; border-color: var(--red);
}
.cat-section { margin-bottom: 64px; }
.cat-header { display: flex; gap: 16px; align-items: center; margin-bottom: 32px; }
.cat-icon {
  width: 56px; height: 56px; border-radius: var(--radius);
  background: var(--beige-warm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem; flex-shrink: 0;
}
.cat-header h3 {
  font-family: var(--font-display);
  font-size: 1.4rem; font-weight: 700; color: var(--dark);
  margin-bottom: 4px;
}
.cat-header p { color: var(--muted-light); font-size: 0.9rem; }
.cat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.product-img img {
  width: 100%; height: 100%; object-fit: contain;
  background: var(--white);
}
.product-specs {
  display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
  margin-bottom: 8px;
}
.product-specs span {
  padding: 2px 10px; border-radius: 4px;
  background: var(--beige-warm);
  font-size: 0.78rem; color: var(--muted);
  letter-spacing: 0.5px;
}

/* ==================== 产品中心 — 序列布局 ==================== */
.prod-hero {
  background: linear-gradient(170deg, var(--dark) 0%, var(--dark2) 50%, var(--dark) 100%);
  padding: 140px 0 64px; text-align: center; color: #fff;
}
.prod-hero h1 {
  font-family: var(--font-display);
  font-size: 2.6rem; font-weight: 700; letter-spacing: 3px;
  margin-bottom: 12px;
}
.prod-hero p {
  color: var(--gold-light); font-size: 1.05rem; letter-spacing: 2px;
}

.prod-list { padding: 0; }
.prod-item {
  display: flex; gap: 0; align-items: stretch;
  min-height: 460px;
}
.prod-item:nth-child(even) { flex-direction: row-reverse; }

.prod-visual {
  flex: 1 1 50%; min-width: 0;
  display: flex; align-items: center; justify-content: center;
  padding: 48px;
  background: var(--white);
}
.prod-visual img {
  max-width: 100%; max-height: 380px; object-fit: contain;
  border: 1px solid var(--beige-warm);
  border-radius: var(--radius);
  background: var(--white);
}

.prod-detail {
  flex: 1 1 50%; min-width: 0;
  display: flex; flex-direction: column; justify-content: center;
  padding: 56px 48px;
  background: var(--beige);
}
.prod-detail .prod-num {
  font-family: var(--font-display);
  font-size: 3.4rem; font-weight: 900; color: var(--red);
  opacity: 0.25; line-height: 1; margin-bottom: 4px;
}
.prod-detail h2 {
  font-family: var(--font-display);
  font-size: 1.8rem; font-weight: 700; color: var(--dark);
  margin-bottom: 8px;
}
.prod-detail .prod-subtitle {
  display: inline-block; padding: 4px 14px; border-radius: 4px;
  background: var(--red); color: #fff;
  font-size: 0.82rem; letter-spacing: 2px; margin-bottom: 20px;
  align-self: flex-start;
}
.prod-detail .prod-specs {
  display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 16px;
}
.prod-detail .prod-specs span {
  padding: 4px 14px; border-radius: 4px;
  background: var(--white);
  font-size: 0.82rem; color: var(--muted);
  letter-spacing: 0.5px; border: 1px solid var(--gold-pale);
}
.prod-detail .prod-desc {
  font-size: 0.95rem; color: var(--muted-light); line-height: 1.8;
  margin-bottom: 24px; max-width: 420px;
}
.prod-detail .btn-gold { align-self: flex-start; }

/* 第一项（主打产品）高亮 */
.prod-item:first-child .prod-visual {
  background: linear-gradient(135deg, #FDF8F0 0%, #F5EDE0 100%);
}
.prod-item:first-child .prod-detail {
  background: var(--dark); color: #fff;
}
.prod-item:first-child .prod-detail h2 { color: var(--gold); }
.prod-item:first-child .prod-detail .prod-desc { color: rgba(255,255,255,.72); }
.prod-item:first-child .prod-detail .prod-specs span {
  background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.15); color: rgba(255,255,255,.78);
}
.prod-item:first-child .prod-detail .btn-gold {
  box-shadow: 0 0 24px rgba(201,169,110,.25);
}

/* 产品详情页 */

/* ==================== 产品详情页 ==================== */
.product-detail-hero { padding: 140px 0 72px; background: var(--beige); }
.pd-hero-grid { display: flex; gap: 64px; align-items: center; }
.pd-hero-image { flex: 0 0 480px; max-width: 50%; }
.pd-hero-image img { width: 100%; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.pd-hero-info { flex: 1; }
.pd-breadcrumb { font-size: 0.8rem; color: var(--muted-light); margin-bottom: 16px; }
.pd-breadcrumb a { color: var(--red); }
.pd-breadcrumb span { color: var(--muted); }
.product-detail-hero h1 {
  font-family: var(--font-display);
  font-size: 2.6rem; font-weight: 700; color: var(--dark);
  margin-bottom: 8px; letter-spacing: 2px;
}
.pd-accent { color: var(--red); }
.pd-subtitle { color: var(--gold); font-size: 1.1rem; letter-spacing: 2px; margin-bottom: 12px; }
.pd-tagline { color: var(--muted); line-height: 1.8; margin-bottom: 24px; }
.pd-hero-specs { display: flex; gap: 0; margin-bottom: 28px; }
.pd-spec-item { text-align: center; padding: 0 24px; }
.pd-spec-num {
  display: block; font-family: var(--font-display);
  font-size: 1.3rem; font-weight: 700; color: var(--dark);
}
.pd-spec-label { font-size: 0.8rem; color: var(--muted-light); }
.pd-spec-div { width: 1px; background: var(--gold-pale); }
.pd-hero-actions { display: flex; gap: 16px; }
.btn-primary {
  display: inline-block; padding: 14px 36px; border-radius: 50px;
  background: var(--red); color: #fff; font-weight: 600;
  transition: all .3s;
}
.btn-primary:hover { background: var(--red-dark); transform: translateY(-2px); }
.pd-story { padding: 80px 0; background: var(--white); }
.pd-story-inner { display: flex; gap: 64px; align-items: center; }
.pd-story-text { flex: 1; }
.pd-story-image { flex: 0 0 360px; }
.pd-story-image img { width: 100%; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.section-label {
  font-size: 0.75rem; text-transform: uppercase; letter-spacing: 4px;
  color: var(--red); margin-bottom: 8px; display: block;
}
.pd-story-text h2 {
  font-family: var(--font-display);
  font-size: 2rem; font-weight: 700; color: var(--dark);
  margin-bottom: 20px; letter-spacing: 2px;
}
.pd-story-text .lead { font-size: 1.1rem; color: var(--gold); margin-bottom: 16px; }
.pd-story-text p { color: var(--muted); line-height: 1.9; margin-bottom: 12px; }
.pd-story-text strong { color: var(--dark); }
.pd-craft { padding: 80px 0; background: var(--beige); }
.section-title { text-align: center; margin-bottom: 48px; }
.section-title h2 {
  font-family: var(--font-display);
  font-size: 2rem; font-weight: 700; color: var(--dark);
  margin-bottom: 8px; letter-spacing: 2px;
}
.section-desc { color: var(--muted-light); }
.pd-craft-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.pd-craft-card {
  text-align: center; padding: 36px 24px;
  background: var(--white); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); transition: all .3s;
}
.pd-craft-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.pd-craft-icon { font-size: 2.4rem; margin-bottom: 12px; }
.pd-craft-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem; font-weight: 700; color: var(--dark);
  margin-bottom: 8px;
}
.pd-craft-card p { font-size: 0.9rem; color: var(--muted); line-height: 1.7; }
.pd-specs { padding: 80px 0; background: var(--white); }
.spec-table { max-width: 700px; margin: 0 auto; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); }
.spec-row { display: flex; border-bottom: 1px solid var(--beige-warm); }
.spec-row:last-child { border-bottom: none; }
.spec-th {
  flex: 0 0 140px; padding: 16px 20px;
  background: var(--beige-warm);
  font-weight: 600; font-size: 0.9rem; color: var(--dark);
}
.spec-td { flex: 1; padding: 16px 20px; font-size: 0.9rem; color: var(--muted); background: var(--white); }
.pd-cta { padding: 80px 0; background: var(--dark); color: #fff; }
.pd-cta-inner { text-align: center; max-width: 660px; margin: 0 auto; }
.pd-cta-inner h2 {
  font-family: var(--font-display);
  font-size: 2rem; font-weight: 700; margin-bottom: 12px; letter-spacing: 2px;
}
.pd-cta-inner p { color: rgba(255,255,255,0.6); line-height: 1.9; margin-bottom: 28px; }
.pd-cta-buttons { display: flex; flex-direction: column; gap: 20px; align-items: center; }
.pd-cta-contact p { font-size: 0.9rem; margin-bottom: 4px; }

/* ==================== 子页面横幅 ==================== */
.page-hero {
  background: linear-gradient(170deg, var(--dark) 0%, var(--dark2) 50%, var(--dark) 100%);
  padding: 140px 0 72px; text-align: center; color: #fff;
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: 2.6rem; font-weight: 700; letter-spacing: 3px;
  margin-bottom: 12px;
}
.page-hero p {
  color: var(--gold-light); font-size: 1.05rem; letter-spacing: 2px;
}
.nav a.active { color: var(--gold); }
.nav a.active::after { transform: scaleX(1); }

/* ==================== 发展历程（时间线） ==================== */
.timeline {
  position: relative; padding-left: 48px;
}
.timeline::before {
  content: ''; position: absolute; left: 16px; top: 0; bottom: 0;
  width: 2px; background: var(--gold-pale);
}
.tl-item {
  position: relative; margin-bottom: 40px;
}
.tl-item::before {
  content: ''; position: absolute; left: -40px; top: 8px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--red); border: 3px solid var(--beige);
}
.tl-year {
  font-family: var(--font-display);
  font-size: 0.85rem; color: var(--red); letter-spacing: 2px;
  margin-bottom: 4px;
}
.tl-body h3 {
  font-family: var(--font-display);
  font-size: 1.2rem; font-weight: 700; color: var(--dark);
  margin-bottom: 6px;
}
.tl-body p { color: var(--muted); line-height: 1.8; }

/* ==================== 资质证照 ==================== */
.cert-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px;
  max-width: 800px; margin: 0 auto;
}
.cert-card {
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow);
}
.cert-card .img-placeholder { min-height: 320px; }

/* ==================== 服务网点卡片 ==================== */
.location-cards {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.location-card {
  background: var(--white); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow);
  text-align: center; padding-bottom: 24px;
  transition: all .3s;
}
.location-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.location-img { aspect-ratio: 16/10; overflow: hidden; }
.location-img .img-placeholder { width: 100%; height: 100%; border-radius: 0; min-height: auto; }
.location-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem; font-weight: 700; color: var(--dark);
  margin: 20px 0 4px;
}
.location-addr { font-size: 0.9rem; color: var(--muted); }
.location-name { font-size: 0.85rem; color: var(--muted-light); margin-bottom: 4px; }

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .culture-grid { grid-template-columns: repeat(2, 1fr); }
  .about-layout { flex-direction: column; gap: 40px; }
  .about-stats { flex: 0; width: 100%; max-width: 500px; }
  .location-cards { grid-template-columns: repeat(2, 1fr); }
  .cert-grid { grid-template-columns: 1fr; }
  .cat-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }
  .section-head h2 { font-size: 1.8rem; }

  .menu-btn { display: flex; }
  .nav {
    display: none; flex-direction: column;
    position: absolute; top: 72px; left: 0; right: 0;
    background: rgba(28,20,16,0.97); backdrop-filter: blur(8px);
    padding: 24px; gap: 16px;
  }
  .nav.open { display: flex; }
  .nav a { font-size: 1.05rem; }

  .hero-content h1 { font-size: 2rem; letter-spacing: 1px; }
  .hero-sub { font-size: 0.9rem; letter-spacing: 3px; }
  .hero-btns { flex-direction: column; align-items: center; }
  .hero { height: 360px; max-height: 60vh; }

  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .culture-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .news-grid { grid-template-columns: 1fr; }
  .story-layout { flex-direction: column; }
  .contact-layout { flex-direction: column; }
  .contact-mini { flex-direction: column; max-width: 400px; }
  .about-stats { grid-template-columns: 1fr 1fr; }
  .footer-layout { grid-template-columns: 1fr 1fr; }
  .location-cards { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .cat-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
  .prod-item, .prod-item:nth-child(even) {
    flex-direction: column;
  }
  .prod-visual { flex: 0; padding: 40px 32px 20px; }
  .prod-visual img { max-height: 260px; }
  .prod-detail { flex: 0; padding: 24px 32px 40px; }
  .prod-detail h2 { font-size: 1.5rem; }
  .prod-detail .prod-num { font-size: 2.6rem; }
  .timeline { padding-left: 36px; }
  .pd-hero-grid { flex-direction: column-reverse; gap: 32px; }
  .pd-hero-image { flex: 0; max-width: 360px; }
  .pd-hero-specs { flex-wrap: wrap; gap: 16px; }
  .pd-spec-div { display: none; }
  .pd-story-inner { flex-direction: column; }
  .pd-story-image { flex: 0; max-width: 280px; }
  .pd-craft-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .spec-th { flex: 0 0 100px; }
}

@media (max-width: 480px) {
  .hero-content h1 { font-size: 1.6rem; }
  .product-grid { grid-template-columns: 1fr; max-width: 320px; margin: 0 auto; }
  .culture-grid { grid-template-columns: 1fr; }
  .about-stats { max-width: 100%; }
  .footer-layout { grid-template-columns: 1fr; }
  .prod-visual { padding: 32px 24px 16px; }
  .prod-detail { padding: 16px 24px 32px; }
  .prod-detail h2 { font-size: 1.3rem; }
}

/* ===== 联系页：二维码卡片 ===== */
.qr-group { display: flex; gap: 24px; justify-content: center; flex-wrap: wrap; align-items: stretch; }
.qr-card {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 14px; padding: 28px 32px; background: var(--white);
  border-radius: var(--radius-lg); box-shadow: var(--shadow);
  transition: transform .2s; min-height: 220px;
}
.qr-card img { width: 140px; height: 140px; object-fit: contain; }
.qr-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.qr-label {
  font-weight: 600; font-size: 0.9rem; color: var(--dark);
  text-align: center; line-height: 1;
}