/* =====================================================================
   风格 2 · 简约商务（Editorial Minimal）
   与风格 1 的差异：纯白底 + 直角硬朗 + 单一强调色 + 无阴影靠细线分隔
   Hero 居中大标题 + 横排图条（非左文右图网格）；商品区 4 列无边框卡
   ===================================================================== */

html { -ms-text-size-adjust: 100%; -webkit-text-size-adjust: 100%; line-height: 1.15; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 15px;
  color: #111827;
  background: #ffffff;
  min-width: 1180px;
  -webkit-font-smoothing: antialiased;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; vertical-align: middle; border: 0; }
input, button { outline: none; font-family: inherit; }
.clearfix:after { content: ""; display: table; clear: both; }
.container { width: 1220px; margin: 0 auto; }

/* ===== HEADER：白底 + 细线，无渐变 ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
}
.header .container {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo { display: flex; align-items: center; }
.logo a { display: flex; align-items: center; gap: 12px; }
.site-logo-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 2px;
  background: #F58510;
  color: #ffffff;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0;
}
.site-logo-name {
  font-size: 17px;
  font-weight: 650;
  color: #111827;
  letter-spacing: -0.2px;
}

.hdr-nav { display: flex; align-items: center; gap: 4px; }
.hdr-nav a {
  position: relative;
  padding: 9px 16px;
  font-size: 14px;
  color: #4b5563;
  transition: color .18s;
}
.hdr-nav a:hover { color: #111827; }
.hdr-nav a.active { color: #111827; font-weight: 600; }
.hdr-nav a.active:after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: -21px;
  height: 2px;
  background: #F58510;
}

.hdr-auth { display: flex; align-items: center; gap: 8px; }
.hdr-auth a {
  font-size: 14px;
  color: #4b5563;
  padding: 9px 16px;
  border-radius: 2px;
  transition: .18s;
}
.hdr-auth a:hover { color: #111827; }
.hdr-btn { border: 1px solid #e5e7eb; color: #111827 !important; }
.hdr-btn:hover { border-color: #d1d5db; background: #f9fafb; }
.hdr-btn-fill {
  background: #F58510 !important;
  color: #ffffff !important;
  font-weight: 600;
  border: 1px solid #F58510;
}
.hdr-btn-fill:hover { background: #DB3E09 !important; border-color: #DB3E09; }

/* ===== HERO：居中大标题 + 横排图条 ===== */
.hero {
  padding: 96px 0 0;
  background: #ffffff;
  text-align: center;
}
.hero-center { max-width: 780px; margin: 0 auto; }
.hero-center .hero-eyebrow {
  display: inline-block;
  margin-bottom: 20px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: #BA4008;
  background: #FEF4EB;
  border: 1px solid #FAD292;
  border-radius: 2px;
}
.hero-text h1 {
  font-size: 54px;
  font-weight: 700;
  color: #0b1120;
  line-height: 1.14;
  letter-spacing: -1.6px;
  margin-bottom: 22px;
}
.hero-text h1 em {
  font-style: normal;
  color: #F58510;
}
.hero-text p {
  font-size: 17px;
  color: #6b7280;
  line-height: 1.75;
  max-width: 620px;
  margin: 0 auto 34px;
}
.hero-actions { display: flex; gap: 12px; justify-content: center; }
.hero-btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 15px 34px;
  background: #F58510;
  color: #ffffff;
  border-radius: 2px;
  font-size: 15px;
  font-weight: 650;
  letter-spacing: .2px;
  transition: background .18s;
}
.hero-btn-primary:hover { background: #DB3E09; color: #ffffff; }
.hero-btn-outline {
  display: inline-flex;
  align-items: center;
  padding: 15px 34px;
  background: #ffffff;
  color: #111827;
  border: 1px solid #d1d5db;
  border-radius: 2px;
  font-size: 15px;
  font-weight: 550;
  transition: .18s;
}
.hero-btn-outline:hover { border-color: #111827; }

/* 横排图条：与风格 1 的 2×2 网格明显不同 */
.hero-visual { margin-top: 64px; }
.hero-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2px;
  background: #e5e7eb;
  border-top: 1px solid #e5e7eb;
}
.hero-strip img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  background: #f3f4f6;
  display: block;
  filter: saturate(1.02);
  transition: opacity .25s;
}
.hero-strip img:hover { opacity: .88; }

/* ===== STATS：白底细线分隔 ===== */
.stats-bar {
  background: #ffffff;
  border-top: 1px solid #e5e7eb;
  border-bottom: 1px solid #e5e7eb;
  padding: 30px 0;
}
.stats-bar .container { display: flex; justify-content: center; }
.stat-item {
  flex: 1;
  text-align: center;
  padding: 0 40px;
  border-right: 1px solid #e5e7eb;
}
.stat-item:last-child { border-right: 0; }
.stat-num {
  display: block;
  font-size: 34px;
  font-weight: 700;
  color: #111827;
  letter-spacing: -1px;
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}
.stat-label {
  font-size: 12px;
  color: #9ca3af;
  letter-spacing: 1.4px;
  text-transform: uppercase;
}

/* ===== INNER HERO：浅灰区块 ===== */
.inner-hero {
  padding: 56px 0 42px;
  background: #f7f8fa;
  border-bottom: 1px solid #e5e7eb;
}
.inner-hero h1 {
  font-size: 34px;
  font-weight: 700;
  color: #0b1120;
  margin-top: 14px;
  letter-spacing: -0.8px;
}
.inner-hero p { margin-top: 10px; color: #6b7280; font-size: 15px; }
.position { color: #9ca3af; font-size: 13px; }
.position a { color: #BA4008; font-weight: 600; }

/* ===== SECTION ===== */
.section { padding: 68px 0; }
.section-hd {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 30px;
  padding-bottom: 18px;
  border-bottom: 1px solid #e5e7eb;
}
.section-hd h2 {
  font-size: 30px;
  color: #0b1120;
  font-weight: 700;
  letter-spacing: -0.8px;
}
.section-hd h2 em { font-style: normal; color: #F58510; }
.more-link { font-size: 14px; color: #6b7280; transition: .18s; }
.more-link:hover { color: #BA4008; }

/* ===== CATEGORY：下划线式切换 ===== */
.cat-scroll {
  display: flex;
  gap: 2px;
  margin-bottom: 34px;
  flex-wrap: wrap;
  border-bottom: 1px solid #e5e7eb;
}
.cat-scroll a {
  padding: 11px 20px;
  font-size: 14px;
  color: #6b7280;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: .18s;
}
.cat-scroll a:hover { color: #111827; }
.cat-scroll a.active {
  color: #111827;
  font-weight: 600;
  border-bottom-color: #F58510;
}

/* ===== PRODUCT GRID：4 列 + 无边框卡 ===== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px 22px;
}
.product-card {
  display: flex;
  flex-direction: column;
  background: #ffffff;
  color: inherit;
}
.product-img {
  display: block;
  position: relative;
  aspect-ratio: 1 / 1;
  background: #f3f4f6;
  overflow: hidden;
  border: 1px solid #eceef1;
}
.product-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s cubic-bezier(.2,.7,.3,1);
}
.product-card:hover .product-img img { transform: scale(1.045); }
.product-card:hover .product-img { border-color: #d1d5db; }
.img-tag {
  position: absolute;
  top: 0;
  left: 0;
  padding: 5px 11px;
  background: #ffffff;
  color: #111827;
  font-size: 11px;
  font-weight: 650;
  letter-spacing: .6px;
  text-transform: uppercase;
}
.product-body { padding: 16px 0 0; display: flex; flex-direction: column; flex: 1; }
.product-body h3 {
  font-size: 15px;
  font-weight: 600;
  color: #111827;
  line-height: 1.5;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.product-summary {
  font-size: 13px;
  color: #9ca3af;
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
  flex: 1;
}
.product-specs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.product-specs span {
  padding: 3px 8px;
  background: transparent;
  border: 1px solid #e5e7eb;
  color: #6b7280;
  font-size: 11px;
  border-radius: 2px;
}
.product-contact {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 0;
  margin-bottom: 10px;
  border-top: 1px solid #f3f4f6;
  border-bottom: 1px solid #f3f4f6;
  font-size: 12px;
  color: #6b7280;
}
.product-contact .contact-phone { color: #BA4008 !important; font-weight: 650; font-size: 13px !important; }
.product-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 4px;
}
.product-date { font-size: 12px; color: #b6bcc6; }
.product-contact-hint { font-size: 12px; color: #111827; font-weight: 600; }
.product-card:hover .product-contact-hint { color: #BA4008; }

/* ===== DETAIL PAGE ===== */
.detail-section { padding-top: 48px; }
.news-left { float: left; width: 800px; }
.news-right { float: right; width: 340px; }
.news-title, .news-content, .news-exp, .news-box, .about-1, .contact-page, .auth-card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
}
.news-title { padding: 32px; margin-bottom: 20px; }
.news-title h1 {
  font-size: 27px;
  line-height: 1.42;
  color: #0b1120;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.news-title p { display: flex; gap: 22px; color: #9ca3af; font-size: 13px; }
.news-content { padding: 36px 32px; line-height: 2; color: #374151; }
.news-content .summary {
  padding: 20px 0 20px 22px;
  margin-bottom: 26px;
  background: transparent;
  border-left: 3px solid #F58510;
  color: #111827;
  font-size: 16px;
  font-weight: 550;
  line-height: 1.8;
}
.news-content p { margin-bottom: 16px; font-size: 15px; }
.news-content img { display: block; max-width: 580px; width: 100%; margin: 28px auto; }
.news-exp {
  margin-top: 20px;
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  border-color: #f3f4f6;
}
.news-exp a { color: #6b7280; font-size: 14px; }
.news-exp a:hover { color: #BA4008; }
.news-box .tit {
  padding: 18px 24px;
  font-weight: 650;
  border-bottom: 1px solid #e5e7eb;
  color: #0b1120;
  font-size: 15px;
  letter-spacing: -0.2px;
}
.side-news-list li a { display: block; padding: 16px 24px; border-bottom: 1px solid #f3f4f6; transition: .18s; }
.side-news-list li:last-child a { border-bottom: 0; }
.side-news-list li a:hover { background: #f9fafb; }
.side-news-list strong { display: block; line-height: 1.5; color: #111827; font-size: 14px; font-weight: 550; }
.side-news-list span { color: #BA4008; font-size: 12px; }

/* ===== PAGINATION：直角方块 ===== */
.pagination { display: flex; justify-content: center; gap: 6px; margin-top: 48px; }
.pagination a {
  min-width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 2px;
  color: #6b7280;
  font-size: 14px;
  transition: .18s;
}
.pagination a:hover { border-color: #111827; color: #111827; }
.pagination .active a { background: #111827; color: #ffffff; border-color: #111827; }

/* ===== POLICY PAGES ===== */
.about-1, .contact-page { padding: 44px 40px; line-height: 2.2; color: #374151; }
.about-1 p { margin-bottom: 16px; font-size: 15px; }
.about-1 strong {
  display: inline-block;
  color: #0b1120;
  font-size: 17px;
  font-weight: 650;
  margin-top: 10px;
}
.policy-contact-box {
  margin-top: 34px;
  padding: 24px 28px;
  background: #f7f8fa;
  border-left: 3px solid #F58510;
}
.policy-contact-box h3 { color: #0b1120; margin-bottom: 10px; font-size: 15px; }

/* ===== CONTACT PAGE ===== */
.contact-page h1 { font-size: 32px; margin-bottom: 16px; color: #0b1120; letter-spacing: -0.8px; }
.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 34px;
  background: #e5e7eb;
  border: 1px solid #e5e7eb;
}
.contact-card {
  padding: 30px 24px;
  background: #ffffff;
  text-align: left;
}
.contact-card h3 {
  font-size: 11px;
  color: #9ca3af;
  margin-bottom: 12px;
  font-weight: 650;
  letter-spacing: 1.2px;
  text-transform: uppercase;
}
.contact-card p { color: #111827; line-height: 1.75; font-size: 15px; }
.contact-phone { font-size: 20px !important; font-weight: 700; color: #BA4008 !important; letter-spacing: -0.4px; }

/* ===== AUTH ===== */
.auth-section { min-height: 560px; display: grid; place-items: center; padding: 84px 0; background: #f7f8fa; }
.auth-card { width: 430px; padding: 44px 40px; }
.auth-card h2 { font-size: 27px; color: #0b1120; margin-bottom: 8px; letter-spacing: -0.6px; }
.auth-subtitle { color: #9ca3af; margin-bottom: 34px; font-size: 14px; }
.auth-form-group { margin-bottom: 20px; }
.auth-form-group label {
  display: block;
  margin-bottom: 8px;
  color: #6b7280;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .8px;
  text-transform: uppercase;
}
.auth-form-group input {
  width: 100%;
  height: 50px;
  padding: 0 16px;
  border: 1px solid #e5e7eb;
  border-radius: 2px;
  background: #ffffff;
  font-size: 15px;
  transition: border-color .18s;
}
.auth-form-group input:focus { border-color: #F58510; }
.auth-submit {
  width: 100%;
  height: 52px;
  border: 0;
  border-radius: 2px;
  background: #F58510;
  color: #ffffff;
  font-size: 16px;
  font-weight: 650;
  cursor: pointer;
  transition: background .18s;
}
.auth-submit:hover { background: #DB3E09; }
.auth-switch { margin-top: 22px; color: #9ca3af; font-size: 14px; }
.auth-switch a { color: #BA4008; font-weight: 650; }
.auth-agreement { display: flex; align-items: center; gap: 8px; margin-bottom: 20px; font-size: 13px; color: #6b7280; }
.auth-agreement input[type="checkbox"] { accent-color: #F58510; }
.auth-agreement a { color: #BA4008; }

/* ===== FOOTER：浅灰 + 深字 ===== */
.footer {
  margin-top: 40px;
  background: #f7f8fa;
  border-top: 1px solid #e5e7eb;
  color: #6b7280;
  padding-top: 60px;
}
.footer-row {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 56px;
  padding-bottom: 44px;
  border-bottom: 1px solid #e5e7eb;
}
.footer-col h4 {
  color: #0b1120;
  margin-bottom: 20px;
  font-size: 14px;
  font-weight: 650;
  letter-spacing: .6px;
  text-transform: uppercase;
}
.footer-col p, .footer-nav a { color: #6b7280; line-height: 2.1; font-size: 14px; }
.footer-nav li { margin-bottom: 2px; }
.footer-nav a:hover { color: #BA4008; }
.footer-bottom {
  text-align: center;
  padding: 26px 0;
  color: #9ca3af;
  font-size: 13px;
  line-height: 2.1;
}
.footer-bottom a { color: #6b7280; }
.footer-bottom a:hover { color: #BA4008; }

/* ===== BACK TO TOP：方形 ===== */
.backTop {
  position: fixed;
  right: 30px;
  bottom: 44px;
  width: 46px;
  height: 46px;
  border-radius: 2px;
  background: #111827;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 18px;
  transition: background .2s;
  z-index: 90;
}
.backTop:hover { background: #F58510; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1220px) {
  body { min-width: auto; }
  .container { width: auto; padding: 0 24px; }
  .hero { padding-top: 64px; }
  .hero-text h1 { font-size: 38px; letter-spacing: -1px; }
  .hero-strip { grid-template-columns: repeat(2, 1fr); }
  .hero-strip img { height: 190px; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .news-left, .news-right { float: none; width: auto; }
  .news-right { margin-top: 24px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-row { grid-template-columns: 1fr; gap: 36px; }
  .stats-bar .container { flex-direction: column; gap: 24px; }
  .stat-item { border-right: 0; border-bottom: 1px solid #e5e7eb; padding-bottom: 20px; }
  .stat-item:last-child { border-bottom: 0; }
  /* 中等视口：导航折叠为可横向滚动的第二行，避免完全无法访问 */
  .header .container { height: auto; flex-wrap: wrap; padding: 8px 24px; row-gap: 4px; }
  .hdr-nav {
    order: 3;
    width: 100%;
    gap: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .hdr-nav::-webkit-scrollbar { display: none; }
  .hdr-nav a { white-space: nowrap; padding: 8px 12px; }
  .hdr-nav a.active:after { left: 12px; right: 12px; bottom: 0; }
}

/* ===== 对比度修正：琥珀金底（#F58510）上的白字仅 2.15:1，改深色文字 ===== */
.site-logo-mark,
.hdr-btn-fill,
.hero-btn-primary,
.hero-btn-primary:hover,
.auth-submit { color: #111827 !important; }