/* ============================================================
   三品塑胶电子官网 - 全局样式
   浅色现代商务风格（技术支持。QQ：361051）：白底 + 浅灰分区 + 橙红点缀
   ============================================================ */

:root {
  --accent: #ff4b00;
  --accent-light: #ff8a5c;
  --accent-deep: #e63c00;
  --accent-tint: #fff3ec;
  --ink: #22262e;
  --navy: #22262e;
  --navy-deep: #22262e;
  --grey: #666e7a;
  --grey-light: #9aa3af;
  --bg-light: #f6f7f9;
  --bg-soft: #eef1f5;
  --white: #ffffff;
  --border: #e8ebee;
  --shadow-sm: 0 4px 16px rgba(20, 24, 32, .06);
  --shadow-md: 0 12px 36px rgba(20, 24, 32, .09);
  --shadow-lg: 0 24px 60px rgba(20, 24, 32, .14);
  --radius: 10px;
  --maxw: 1240px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .3s var(--ease); }
ul, ol { list-style: none; }

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

/* ---------- 顶部通栏（浅灰） ---------- */
.topbar {
  background: var(--bg-light);
  border-bottom: 1px solid var(--border);
  color: var(--grey);
  font-size: 13px;
  line-height: 1;
  position: relative;
  z-index: 1002;
}
.topbar-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.topbar-left { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.topbar-item { display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
.topbar-item svg { width: 14px; height: 14px; fill: var(--accent); flex: none; }
.topbar-item a:hover { color: var(--accent); }
.topbar-right { display: flex; align-items: center; gap: 10px; }
.lang-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  user-select: none;
}
.lang-switch .globe { width: 15px; height: 15px; fill: var(--accent); }
.lang-switch .caret { width: 10px; height: 10px; fill: var(--grey-light); }
.lang-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  background: var(--white);
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  min-width: 128px;
  padding: 6px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: all .25s var(--ease);
  z-index: 1003;
}
.lang-switch:hover .lang-menu, .lang-switch.open .lang-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-menu a {
  display: block;
  padding: 8px 14px;
  border-radius: 6px;
  color: var(--ink);
  font-size: 13px;
}
.lang-menu a:hover { background: var(--bg-light); color: var(--accent); }
.lang-menu a.active { color: var(--accent); font-weight: 600; }
.topbar-divider { width: 1px; height: 12px; background: var(--border); }
.ali-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-deep);
  font-weight: 500;
}
.ali-link svg { width: 15px; height: 15px; fill: currentColor; }
.ali-link:hover { color: var(--accent); }

/* ---------- 主导航（白色） ---------- */
.header {
  background: rgba(255, 255, 255, .98);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 1001;
  border-bottom: 1px solid var(--border);
  transition: box-shadow .3s;
}
.header.scrolled { box-shadow: 0 6px 24px rgba(20, 24, 32, .08); }
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 14px; flex: none; }
.brand-mark {
  width: 48px; height: 48px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 22px;
  font-family: Georgia, serif;
  box-shadow: 0 6px 18px rgba(255, 75, 0, .28);
}
.brand-logo { display: flex; align-items: center; height: 52px; }
.brand-logo img { height: 44px; width: auto; max-width: 200px; object-fit: contain; transition: transform .3s ease; }
.brand:hover .brand-logo img { transform: scale(1.03); }
.brand-text { max-width: 220px; }
.brand-text .cn { color: var(--ink); font-size: 16px; font-weight: 700; letter-spacing: 1px; line-height: 1.3; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block; }
.brand-text .en { color: var(--grey-light); font-size: 8.5px; letter-spacing: .2px; text-transform: uppercase; line-height: 1.2; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block; }

nav { flex: 1; display: flex; justify-content: flex-end; min-width: 0; }
.nav-menu { display: flex; align-items: center; gap: 4px; flex-wrap: nowrap; width: 100%; justify-content: flex-end; }
.nav-menu > li { position: relative; }
.nav-menu > li > a { white-space: nowrap;
  display: block;
  padding: 12px 13px;
  color: var(--ink);
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: .3px;
  position: relative;
}
.nav-menu > li > a::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 2px;
  width: 0; height: 2px;
  background: var(--accent);
  transition: all .3s var(--ease);
  transform: translateX(-50%);
}
.nav-menu > li > a:hover, .nav-menu > li.active > a { color: var(--accent); }
.nav-menu > li > a:hover::after, .nav-menu > li.active > a::after { width: 60%; }
.nav-menu > li > a i {
  display: inline-block;
  width: 5px; height: 5px;
  background: var(--accent);
  transform: rotate(45deg);
  margin-right: 8px;
  vertical-align: 3px;
  opacity: 0;
  transition: opacity .3s;
}
.nav-menu > li.active > a i, .nav-menu > li > a:hover i { opacity: 1; }

.nav-cta {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  border-radius: 24px;
  letter-spacing: .6px;
  box-shadow: 0 6px 18px rgba(255, 75, 0, .3);
  transition: transform .3s var(--ease), box-shadow .3s;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(255, 75, 0, .42); color: #fff; }
.nav-cta svg { width: 16px; height: 16px; fill: currentColor; }

.nav-toggle { display: none; flex-direction: column; gap: 6px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 26px; height: 2px; background: var(--ink); transition: all .3s var(--ease); display: block; }
.nav-toggle.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ---------- 首页轮播 Banner ---------- */
.hero { position: relative; height: calc(100vh - 132px); min-height: 560px; max-height: 820px; overflow: hidden; background: #2b2f36; }
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(16, 18, 22, .68) 0%, rgba(16, 18, 22, .32) 50%, transparent 100%);
  z-index: 3;
  pointer-events: none;
}
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.1s var(--ease);
  z-index: 1;
}
.hero-slide.active { opacity: 1; z-index: 2; }
.hero-slide-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.06);
  transition: transform 7s linear;
}
.hero-slide.active .hero-slide-bg { transform: scale(1); }
.hero-slide::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(16, 18, 22, .72) 0%, rgba(16, 18, 22, .48) 40%, rgba(16, 18, 22, .2) 100%);
}
.hero-slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 80% 110%, rgba(255, 75, 0, .22), transparent 60%);
}
.hero-content {
  position: relative;
  z-index: 3;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #ffb38c;
  font-size: 14px;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 18px;
  text-shadow: 0 2px 10px rgba(0,0,0,.45);
}
.hero-tag::before { content: ""; width: 42px; height: 1px; background: var(--accent); }
.hero-title {
  color: #fff;
  font-size: 52px;
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: 2px;
  max-width: 720px;
  margin-bottom: 20px;
  text-shadow: 0 4px 24px rgba(0,0,0,.45), 0 1px 2px rgba(0,0,0,.35);
}
.hero-title em { font-style: normal; color: #ff9a66; }
.hero-desc {
  color: rgba(255, 255, 255, .85);
  font-size: 17px;
  max-width: 580px;
  margin-bottom: 38px;
  line-height: 1.9;
  text-shadow: 0 2px 14px rgba(0,0,0,.45);
}
.hero-actions { display: flex; gap: 18px; flex-wrap: wrap; }

.hero-slide .hero-tag, .hero-slide .hero-title, .hero-slide .hero-desc, .hero-slide .hero-actions { opacity: 0; transform: translateY(34px); }
.hero-slide.active .hero-tag { animation: heroUp .9s var(--ease) .25s forwards; }
.hero-slide.active .hero-title { animation: heroUp .9s var(--ease) .4s forwards; }
.hero-slide.active .hero-desc { animation: heroUp .9s var(--ease) .55s forwards; }
.hero-slide.active .hero-actions { animation: heroUp .9s var(--ease) .7s forwards; }
@keyframes heroUp { to { opacity: 1; transform: translateY(0); } }

.hero-nums {
  position: absolute;
  right: 24px; bottom: 90px;
  z-index: 4;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-end;
}
.hero-nums .num-item { text-align: right; color: rgba(255,255,255,.9); border-right: 2px solid var(--accent); padding-right: 14px; }
.hero-nums .num-item b { display: block; font-size: 26px; font-weight: 800; color: #fff; font-family: Georgia, serif; }
.hero-nums .num-item span { font-size: 12.5px; color: rgba(255,255,255,.6); letter-spacing: 1px; }

/* 轮播控制 */
.hero-dots {
  position: absolute;
  left: 50%; bottom: 36px;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 5;
}
.hero-dots button {
  width: 34px; height: 3px;
  border: none;
  background: rgba(255, 255, 255, .3);
  cursor: pointer;
  transition: background .3s;
}
.hero-dots button.active { background: var(--accent); }
.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
  width: 52px; height: 52px;
  border: 1px solid rgba(255, 255, 255, .3);
  background: rgba(20, 24, 32, .22);
  backdrop-filter: blur(4px);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all .3s var(--ease);
  color: #fff;
}
.hero-arrow svg { width: 18px; height: 18px; fill: currentColor; }
.hero-arrow:hover { border-color: var(--accent); background: var(--accent); color: #fff; }
.hero-arrow.prev { left: 28px; }
.hero-arrow.next { right: 28px; }

/* ---------- 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 36px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 2px;
  border-radius: 4px;
  transition: all .35s var(--ease);
  cursor: pointer;
  border: none;
}
.btn svg { width: 16px; height: 16px; fill: currentColor; }
.btn-gold {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  color: #fff;
  box-shadow: 0 8px 22px rgba(255, 75, 0, .32);
}
.btn-gold:hover { transform: translateY(-3px); box-shadow: 0 14px 32px rgba(255, 75, 0, .45); color: #fff; }
.btn-outline {
  background: var(--white);
  color: var(--ink);
  border: 1px solid #d8dce2;
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-tint); }
/* 深色底（CTA 横幅）上的描边按钮 */
.cta-band .btn-outline { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .55); }
.cta-band .btn-outline:hover { background: rgba(255, 255, 255, .14); color: #fff; border-color: #fff; }

/* ---------- 内页 Banner（图片+遮罩） ---------- */
.page-banner {
  position: relative;
  height: 380px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #2b2f36;
}
.page-banner .bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(16, 18, 22, .72) 0%, rgba(16, 18, 22, .46) 60%, rgba(16, 18, 22, .3) 100%);
}
.page-banner .container { position: relative; z-index: 2; }
.page-banner h1 {
  color: #fff;
  font-size: 40px;
  font-weight: 800;
  letter-spacing: 3px;
  margin-bottom: 12px;
}
.page-banner .sub { color: #ffb38c; font-size: 14px; letter-spacing: 5px; text-transform: uppercase; margin-bottom: 16px; }
.page-banner .line { width: 64px; height: 3px; background: var(--accent); }
.breadcrumb {
  position: absolute;
  bottom: 26px;
  left: 0;
  width: 100%;
  z-index: 2;
  background: linear-gradient(to top, rgba(16, 18, 22, .65), transparent);
  padding-top: 26px;
}
.breadcrumb-inner { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; color: rgba(255,255,255,.8); font-size: 13.5px; }
.breadcrumb a:hover { color: #ffb38c; }
.breadcrumb .sep { margin: 0 8px; color: #ff8a5c; }

/* ---------- 版块通用 ---------- */
.section { padding: 96px 0; }
.section.tight { padding: 72px 0; }
.section.bg-light { background: var(--bg-light); }
.section.bg-navy { background: var(--bg-light); position: relative; overflow: hidden; }
.section-head { max-width: 660px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head .kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-head.center .kicker { justify-content: center; }
.section-head .kicker::before, .section-head .kicker::after { content: ""; width: 30px; height: 1px; background: var(--accent); }
.section-head .kicker::after { display: none; }
.section-head.center .kicker::after { display: block; }
.section-head h2 { font-size: 34px; font-weight: 800; color: var(--ink); letter-spacing: 2px; line-height: 1.4; }
.section-head p { color: var(--grey); margin-top: 12px; font-size: 15.5px; }

/* 入场动画 */
.reveal { opacity: 0; transform: translateY(36px); transition: all .8s var(--ease); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal.d1 { transition-delay: .12s; }
.reveal.d2 { transition-delay: .24s; }
.reveal.d3 { transition-delay: .36s; }

/* ---------- 数据统计条（浅色） ---------- */
.stats-band {
  background: var(--bg-light);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 56px 0;
  position: relative;
  overflow: hidden;
}
.stats-grid { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat-item { text-align: center; padding: 10px 0; position: relative; }
.stat-item:not(:last-child)::after {
  content: "";
  position: absolute;
  right: -10px; top: 50%;
  transform: translateY(-50%);
  width: 1px; height: 52px;
  background: linear-gradient(to bottom, transparent, #d5dae1, transparent);
}
.stat-num {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 48px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.15;
}
.stat-num small { font-size: 24px; }
.stat-label { color: var(--grey); font-size: 15px; letter-spacing: 3px; margin-top: 6px; }

/* ---------- 业务卡片 ---------- */
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.service-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .45s var(--ease);
  display: flex;
  flex-direction: column;
}
.service-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.service-card .thumb { position: relative; height: 240px; overflow: hidden; }
.service-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.service-card:hover .thumb img { transform: scale(1.08); }
.service-card .thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(16, 18, 22, .3), transparent 55%);
}
.service-card .num {
  position: absolute;
  top: 18px; right: 20px;
  font-family: Georgia, serif;
  font-size: 44px;
  font-weight: 700;
  color: rgba(255, 255, 255, .5);
  z-index: 2;
  line-height: 1;
}
.service-card .body { padding: 30px 28px 34px; flex: 1; display: flex; flex-direction: column; }
.service-card h3 { font-size: 21px; font-weight: 700; color: var(--ink); margin-bottom: 6px; letter-spacing: 1px; }
.service-card .en { font-size: 12px; color: var(--accent); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 14px; }
.service-card p { color: var(--grey); font-size: 14.5px; line-height: 1.9; flex: 1; }
.service-card .more {
  margin-top: 20px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 1px;
}
.service-card .more svg { width: 15px; height: 15px; fill: var(--accent); transition: transform .3s var(--ease); }
.service-card:hover .more { color: var(--accent); }
.service-card:hover .more svg { transform: translateX(6px); }

/* ---------- 优势网格（白色卡片） ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 26px;
  transition: all .4s var(--ease);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .45s var(--ease);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
  width: 60px; height: 60px;
  border-radius: 12px;
  background: var(--accent-tint);
  border: 1px solid rgba(255, 75, 0, .25);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 22px;
}
.feature-icon svg { width: 28px; height: 28px; fill: var(--accent); }
.feature-card h3 { color: var(--ink); font-size: 18px; font-weight: 700; margin-bottom: 6px; letter-spacing: 1px; }
.feature-card .en { color: var(--accent); font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 14px; }
.feature-card p { color: var(--grey); font-size: 13.5px; line-height: 1.95; }

/* ---------- 关于版块 ---------- */
.about-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 64px; align-items: center; }
.about-media { position: relative; }
.about-media .main-img { border-radius: var(--radius); box-shadow: var(--shadow-lg); width: 100%; height: 460px; object-fit: cover; }
.about-media .sub-img {
  position: absolute;
  right: -22px; bottom: -36px;
  width: 46%;
  border-radius: var(--radius);
  border: 6px solid var(--white);
  box-shadow: var(--shadow-md);
  height: 210px;
  object-fit: cover;
}
.about-media .badge {
  position: absolute;
  left: -22px; top: -22px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  color: #fff;
  padding: 18px 24px;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: 0 12px 30px rgba(255, 75, 0, .35);
}
.about-media .badge b { display: block; font-size: 34px; font-family: Georgia, serif; line-height: 1.1; }
.about-media .badge span { font-size: 12.5px; font-weight: 700; letter-spacing: 2px; }
.about-text .lead { font-size: 17.5px; color: var(--ink); font-weight: 600; line-height: 1.9; margin-bottom: 18px; }
.about-text p { color: var(--grey); font-size: 15px; margin-bottom: 14px; }
.about-points { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 26px; margin: 26px 0 32px; }
.about-points li { display: flex; align-items: flex-start; gap: 10px; color: var(--ink); font-size: 14.5px; font-weight: 500; }
.about-points li::before {
  content: "";
  flex: none;
  width: 18px; height: 18px;
  margin-top: 4px;
  background: var(--accent);
  border-radius: 4px;
  clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
}

/* ---------- 客户/合作 ---------- */
.client-marquee { overflow: hidden; position: relative; padding: 10px 0; }
.client-track { display: flex; gap: 20px; width: max-content; animation: marquee 30s linear infinite; }
.client-marquee:hover .client-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }
.client-item {
  flex: none;
  padding: 20px 40px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--ink);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 2px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: all .3s;
}
.client-item:hover { border-color: var(--accent); color: var(--accent); }
.client-item svg { width: 20px; height: 20px; fill: var(--accent); }

/* ---------- 新闻卡片 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.news-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .4s var(--ease);
  display: flex;
  flex-direction: column;
}
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.news-card .thumb { height: 200px; overflow: hidden; position: relative; }
.news-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
.news-card:hover .thumb img { transform: scale(1.07); }
.news-card .date {
  position: absolute;
  left: 16px; top: 16px;
  background: var(--accent);
  color: #fff;
  border-radius: 6px;
  padding: 8px 12px;
  text-align: center;
  line-height: 1.2;
}
.news-card .date b { display: block; font-size: 20px; font-family: Georgia, serif; color: #fff; }
.news-card .date span { font-size: 11px; opacity: .85; }
.news-card .body { padding: 24px 24px 28px; flex: 1; display: flex; flex-direction: column; }
.news-card h3 { font-size: 17px; font-weight: 700; color: var(--ink); line-height: 1.6; margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card p { color: var(--grey); font-size: 14px; line-height: 1.85; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; flex: 1; }
.news-card .meta { margin-top: 16px; display: flex; align-items: center; justify-content: space-between; font-size: 13px; color: var(--grey-light); }
.news-card .meta a { color: var(--accent); font-weight: 600; }

/* ---------- CTA 横幅（橙红渐变 + 动态背景） ---------- */
.cta-band {
  position: relative;
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent-deep) 45%, var(--accent) 90%);
  background-size: 220% 220%;
  animation: ctaFlow 10s ease-in-out infinite;
  padding: 70px 0;
  overflow: hidden;
}
@keyframes ctaFlow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
.cta-band::before {
  content: "";
  position: absolute;
  left: -12%; top: 50%;
  width: 420px; height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, .18) 0%, transparent 65%);
  transform: translateY(-50%);
  animation: ctaBlob 9s ease-in-out infinite;
}
@keyframes ctaBlob {
  0%, 100% { transform: translateY(-50%) translateX(0) scale(1); opacity: .8; }
  50% { transform: translateY(-50%) translateX(60px) scale(1.15); opacity: 1; }
}
.cta-band::after {
  content: "";
  position: absolute;
  right: -70px; top: -70px;
  width: 300px; height: 300px;
  border: 1.5px dashed rgba(255, 255, 255, .38);
  border-radius: 50%;
  animation: ctaSpin 26s linear infinite;
}
@keyframes ctaSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@media (prefers-reduced-motion: reduce) {
  .cta-band, .cta-band::before, .cta-band::after { animation: none; }
}
.cta-inner { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta-inner h2 { color: #fff; font-size: 30px; font-weight: 800; letter-spacing: 2px; }
.cta-inner h2 em { font-style: normal; color: #ffe3d4; }
.cta-inner p { color: rgba(255, 255, 255, .85); margin-top: 8px; font-size: 15px; }
.cta-band .btn-gold { background: #fff; color: var(--accent-deep); box-shadow: 0 8px 22px rgba(0, 0, 0, .18); }
.cta-band .btn-gold:hover { background: #fff; color: var(--accent); }

/* ---------- 页脚（浅色） ---------- */
.footer { background: #000; color: var(--grey); position: relative; }
.footer::before {
  content: "";
  display: block;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-deep), var(--accent), var(--accent-light));
}
.footer-main { padding: 72px 0 56px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.3fr; gap: 48px; }
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 22px; }
.footer-brand .brand-mark { width: 44px; height: 44px; font-size: 20px; }
.footer-brand .footer-logo { height: 46px; display: flex; align-items: center; }
.footer-brand .footer-logo img { height: 40px; width: auto; max-width: 170px; object-fit: contain; }
.footer-brand .cn { color: var(--ink); font-size: 18px; font-weight: 700; letter-spacing: 1.5px; display: block; line-height: 1.35; }
.footer-brand .en { color: var(--grey-light); font-size: 10px; letter-spacing: 1px; text-transform: uppercase; }
.footer-about p { font-size: 13.8px; line-height: 2; color: var(--grey); margin-bottom: 22px; }
.footer h4 {
  color: var(--ink);
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 14px;
}
.footer h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 34px; height: 2px; background: var(--accent); }
.footer-links li { margin-bottom: 12px; }
.footer-links a { font-size: 14px; color: var(--grey); display: inline-flex; align-items: center; gap: 8px; transition: all .25s; }
.footer-links a::before { content: ""; width: 5px; height: 5px; background: var(--accent); transform: rotate(45deg); opacity: .5; transition: opacity .25s; }
.footer-links a:hover { color: var(--accent); transform: translateX(4px); }
.footer-links a:hover::before { opacity: 1; }
.footer-contact li { display: flex; gap: 12px; margin-bottom: 16px; font-size: 14px; line-height: 1.7; color: var(--grey); }
.footer-contact svg { width: 17px; height: 17px; fill: var(--accent); flex: none; margin-top: 4px; }
.footer-contact a { color: inherit; }
.footer-contact a:hover { color: var(--accent); }

/* 海外社媒 */
.social-block { margin-top: 26px; }
.social-title { color: var(--grey-light); font-size: 12.5px; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 14px; }
.social-links { display: flex; gap: 12px; flex-wrap: wrap; }
.social-links a {
  width: 40px; height: 40px;
  border-radius: 8px;
  border: 1px solid #dcdfe4;
  background: #fff;
  display: flex; align-items: center; justify-content: center;
  transition: all .3s var(--ease);
}
.social-links a svg { width: 18px; height: 18px; fill: var(--grey); transition: fill .3s; }
.social-links a:hover {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  border-color: transparent;
  transform: translateY(-4px);
  box-shadow: 0 10px 22px rgba(255, 75, 0, .3);
}
.social-links a:hover svg { fill: #fff; }

.footer-bottom { border-top: 1px solid var(--border); padding: 22px 0; }
.footer-bottom-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--grey-light);
}
.footer-bottom-inner a:hover { color: var(--accent); }

/* ---------- 侧边悬浮 ---------- */
.float-bar { position: fixed; right: 22px; bottom: 90px; z-index: 900; display: flex; flex-direction: column; gap: 12px; }
.float-btn {
  width: 50px; height: 50px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid var(--border);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
  transition: all .3s var(--ease);
}
.float-btn svg { width: 22px; height: 22px; fill: currentColor; }
.float-btn:hover { background: linear-gradient(135deg, var(--accent), var(--accent-deep)); color: #fff; transform: translateY(-3px); border-color: transparent; }
.float-btn.top { opacity: 0; visibility: hidden; }
.float-btn.top.show { opacity: 1; visibility: visible; }

/* ---------- 内页通用组件 ---------- */
.page-content { padding: 90px 0; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.two-col .img-side img { border-radius: var(--radius); box-shadow: var(--shadow-md); width: 100%; height: 420px; object-fit: cover; }
.two-col .txt-side h2 { font-size: 30px; color: var(--ink); font-weight: 800; letter-spacing: 1.5px; margin-bottom: 8px; }
.two-col .txt-side .sub-en { color: var(--accent); font-size: 12.5px; letter-spacing: 2.5px; text-transform: uppercase; margin-bottom: 20px; }
.two-col .txt-side p { color: var(--grey); font-size: 15px; margin-bottom: 14px; }

.check-list { margin-top: 24px; display: grid; gap: 14px; }
.check-list li { display: flex; gap: 12px; align-items: flex-start; }
.check-list li::before {
  content: "";
  flex: none;
  width: 20px; height: 20px;
  margin-top: 4px;
  background: var(--accent);
  clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
}

/* 应用场景卡片 */
.app-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.app-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: all .4s var(--ease);
  position: relative;
}
.app-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(255, 75, 0, .35); }
.app-card .icon {
  width: 54px; height: 54px;
  border-radius: 12px;
  background: var(--accent-tint);
  border: 1px solid rgba(255, 75, 0, .25);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.app-card .icon svg { width: 26px; height: 26px; fill: var(--accent); }
.app-card h3 { font-size: 18px; font-weight: 700; color: var(--ink); margin-bottom: 10px; }
.app-card p { font-size: 13.8px; color: var(--grey); line-height: 1.9; }

/* 带图应用场景 / 产品体系卡片 */
.app-card.pic, .feature-card.pic { padding: 0; display: flex; flex-direction: column; }
.app-card .pic-box, .feature-card .pic-box {
  height: 178px;
  overflow: hidden;
  background: var(--bg-soft);
  border-radius: var(--radius) var(--radius) 0 0;
}
.app-card .pic-box img, .feature-card .pic-box img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease);
}
.app-card.pic:hover .pic-box img, .feature-card.pic:hover .pic-box img { transform: scale(1.08); }
.app-card .pic-body { padding: 24px 26px 30px; }
.feature-card .pic-body { padding: 26px 26px 32px; }
.feature-card .pic-body .feature-icon { margin-bottom: 16px; }
.feature-card.pic::before { z-index: 2; }

/* 工艺步骤（白色卡片） */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
.process-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  position: relative;
  transition: all .4s var(--ease);
}
.process-card:hover { border-color: rgba(255, 75, 0, .4); transform: translateY(-5px); box-shadow: var(--shadow-md); }
.process-card .step-num {
  font-family: Georgia, serif;
  font-size: 46px;
  font-weight: 700;
  line-height: 1;
  color: rgba(255, 75, 0, .9);
  margin-bottom: 16px;
}
.process-card h3 { color: var(--ink); font-size: 17px; font-weight: 700; margin-bottom: 8px; letter-spacing: 1px; }
.process-card p { color: var(--grey); font-size: 13.5px; line-height: 1.9; }

/* 联系页 */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin-bottom: 60px; }
.contact-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 38px 30px;
  text-align: center;
  transition: all .4s var(--ease);
}
.contact-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(255, 75, 0, .35); }
.contact-card .icon {
  width: 64px; height: 64px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  display: flex; align-items: center; justify-content: center;
}
.contact-card .icon svg { width: 26px; height: 26px; fill: #fff; }
.contact-card h3 { font-size: 18px; color: var(--ink); font-weight: 700; margin-bottom: 12px; letter-spacing: 1px; }
.contact-card p { color: var(--grey); font-size: 14.5px; line-height: 1.9; }
.contact-card p a:hover { color: var(--accent); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 8px; letter-spacing: 1px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14.5px;
  font-family: inherit;
  color: var(--ink);
  background: var(--bg-light);
  transition: all .3s;
  outline: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--accent); background: #fff; box-shadow: 0 0 0 3px rgba(255, 75, 0, .1); }
.form-group textarea { min-height: 130px; resize: vertical; }
.form-group input[readonly] { color: var(--accent-deep); font-weight: 600; background: var(--accent-tint); }

/* 基地卡片（浅色头部） */
.base-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.base-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all .4s var(--ease);
}
.base-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.base-card .head {
  background: linear-gradient(120deg, var(--accent-tint), #fff8f3);
  border-bottom: 1px solid rgba(255, 75, 0, .15);
  padding: 22px 26px;
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.base-card .head h3 { font-size: 18px; font-weight: 700; letter-spacing: 1px; }
.base-card .head .tag { font-size: 11px; color: #fff; background: linear-gradient(135deg, var(--accent), var(--accent-deep)); padding: 4px 12px; border-radius: 20px; font-weight: 700; letter-spacing: 1px; }
.base-card .body { padding: 24px 26px; }
.base-card .body li { display: flex; gap: 10px; font-size: 13.8px; color: var(--grey); margin-bottom: 12px; line-height: 1.8; }
.base-card .body li svg { width: 15px; height: 15px; fill: var(--accent); flex: none; margin-top: 5px; }

/* ============================================================
   响应式适配
   ============================================================ */
@media (max-width: 1200px) {
  .nav-menu > li > a { padding: 12px 11px; font-size: 14px; letter-spacing: .2px; }
  .nav-cta { display: none; }
  .hero-title { font-size: 44px; }
}

@media (max-width: 992px) {
  .nav-inner { height: 72px; }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: min(320px, 84vw);
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 96px 0 40px;
    gap: 0;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform .4s var(--ease), visibility 0s .4s;
    z-index: 1000;
    overflow-y: auto;
    box-shadow: -20px 0 60px rgba(20, 24, 32, .18);
  }
  .nav-menu.open { transform: translateX(0); visibility: visible; transition: transform .4s var(--ease); }
  .nav-menu .nav-close { display: flex; }
  .nav-menu > li > a { padding: 16px 30px; font-size: 16px; border-bottom: 1px solid var(--bg-soft); color: var(--ink); }
  .nav-menu > li > a::after { display: none; }
  .nav-mask {
    position: fixed;
    inset: 0;
    background: rgba(20, 24, 32, .4);
    backdrop-filter: blur(3px);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all .35s;
  }
  .nav-mask.show { opacity: 1; visibility: visible; }

  .hero { height: auto; min-height: 100vh; max-height: none; }
  .hero-content { padding-top: 80px; padding-bottom: 120px; }
  .hero-nums { position: static; margin-top: 10px; flex-direction: row; gap: 26px; align-items: center; padding-bottom: 100px; }
  .hero-nums .num-item { text-align: left; border-right: none; border-left: 2px solid var(--accent); padding-left: 12px; padding-right: 0; }
  .hero-nums .num-item b { font-size: 20px; }

  .section { padding: 68px 0; }
  .section-head h2 { font-size: 28px; }
  .service-grid, .news-grid, .app-grid, .contact-grid, .base-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid, .process-grid, .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2)::after { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 56px; }
  .two-col { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .form-row { grid-template-columns: 1fr; }
  .page-banner { height: 300px; }
  .page-banner h1 { font-size: 32px; }
}

@media (max-width: 768px) {
  .topbar-inner { padding: 8px 16px; }
  .topbar-left { gap: 12px; font-size: 12px; }
  .topbar .hide-sm { display: none; }
  .container { padding: 0 18px; }
  .brand-text .cn { font-size: 17px; letter-spacing: 1px; }
  .brand-mark { width: 42px; height: 42px; font-size: 19px; }
  .brand-logo img { height: 38px; }

  .hero { min-height: 92vh; }
  .hero-title { font-size: 32px; letter-spacing: 1px; }
  .hero-desc { font-size: 15px; margin-bottom: 30px; }
  .hero-actions .btn { padding: 13px 28px; font-size: 14px; }
  .hero-arrow { display: none; }
  .hero-dots button { width: 26px; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 28px 10px; }
  .stat-num { font-size: 38px; }
  .stat-item::after { display: none; }

  .service-grid, .news-grid, .app-grid, .contact-grid, .base-grid, .feature-grid, .process-grid { grid-template-columns: 1fr; }
  .service-card .thumb { height: 220px; }

  .about-media .sub-img { width: 50%; right: -8px; bottom: -26px; height: 160px; }
  .about-media .main-img { height: 320px; }
  .about-media .badge { left: -8px; top: -14px; padding: 12px 18px; }
  .about-media .badge b { font-size: 26px; }
  .about-points { grid-template-columns: 1fr; }

  .cta-inner { text-align: center; justify-content: center; }
  .cta-inner h2 { font-size: 24px; }

  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-main { padding: 56px 0 44px; }
  .footer-bottom-inner { justify-content: center; text-align: center; }

  .page-banner { height: 250px; }
  .page-banner h1 { font-size: 27px; }
  .page-banner .sub { letter-spacing: 3px; font-size: 12px; }

  .float-bar { right: 14px; bottom: 76px; }
  .float-btn { width: 44px; height: 44px; }
}

@media (max-width: 420px) {
  .hero-title { font-size: 26px; }
  .hero-nums { flex-wrap: wrap; gap: 14px 20px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
}

/* 打印与无障碍 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ==================== 客户 Logo 墙（白色卡片 · 5列） ==================== */
.client-logo-wall {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.client-logo-item {
  position: relative;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  height: 92px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px 18px;
  box-shadow: 0 1px 2px rgba(24, 30, 40, .03);
  transition: all .35s var(--ease);
  overflow: hidden;
}
/* 顶部细渐变高光线 */
.client-logo-item::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(255, 75, 0, .45), transparent);
  opacity: 0;
  transition: opacity .35s;
}
/* 悬停底部橙色光条 */
.client-logo-item::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-deep));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .35s var(--ease);
}
.client-logo-item img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  opacity: .6;
  filter: grayscale(.35);
  transition: all .35s var(--ease);
}
.client-logo-item .client-name {
  color: #3a4150;
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: .5px;
  transition: color .35s;
}
/* 第 10 格：数据强调卡 */
.client-logo-item.stat {
  background: linear-gradient(150deg, var(--accent) 0%, var(--accent-deep) 100%);
  border: none;
  box-shadow: 0 8px 22px rgba(255, 75, 0, .28);
}
.client-logo-item.stat b {
  color: #fff;
  font-size: 26px;
  font-weight: 800;
  line-height: 1.15;
}
.client-logo-item.stat span {
  color: rgba(255, 255, 255, .92);
  font-size: 13px;
  letter-spacing: 2px;
  margin-top: 2px;
}
.client-logo-item.stat::after { display: none; }
.client-logo-item:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 75, 0, .38);
  box-shadow: 0 16px 34px rgba(24, 30, 40, .1);
}
.client-logo-item:hover::before { opacity: 1; }
.client-logo-item:hover::after { transform: scaleX(1); }
.client-logo-item:hover img { opacity: 1; filter: grayscale(0); transform: scale(1.06); }
.client-logo-item:hover .client-name { color: var(--accent-deep); }
.client-logo-item.stat:hover { box-shadow: 0 14px 30px rgba(255, 75, 0, .4); transform: translateY(-5px); }

/* ==================== 首页新闻：特写 + 简报 ==================== */
.home-news-tabs { margin-bottom: 34px; }
.home-news-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 28px;
  margin-top: 8px;
}
.home-news-feature {
  display: grid;
  grid-template-rows: auto 1fr;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: all .35s var(--ease);
}
.home-news-feature .thumb {
  position: relative;
  display: block;
  height: 260px;
  overflow: hidden;
}
.home-news-feature .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.home-news-feature:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: rgba(255, 75, 0, .3); }
.home-news-feature:hover .thumb img { transform: scale(1.06); }
.home-news-feature .thumb .cat, .news-list-item .thumb .cat {
  position: absolute;
  left: 14px;
  top: 14px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 20px;
  letter-spacing: 1px;
}
.home-news-feature .body { padding: 24px 26px 26px; }
.home-news-feature .date { display: flex; align-items: baseline; gap: 8px; margin-bottom: 10px; color: var(--accent); }
.home-news-feature .date b { font-size: 30px; font-weight: 800; line-height: 1; }
.home-news-feature .date span { font-size: 13px; opacity: .75; }
.home-news-feature h3 { font-size: 20px; line-height: 1.5; margin-bottom: 10px; }
.home-news-feature h3 a { color: var(--ink); transition: color .3s; }
.home-news-feature h3 a:hover { color: var(--accent); }
.home-news-feature p { color: var(--grey); font-size: 14.5px; line-height: 1.8; margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.read-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
}
.read-more svg { width: 16px; height: 16px; fill: var(--accent); transition: transform .3s; }
.read-more:hover svg { transform: translateX(4px); }

.home-news-list { display: grid; gap: 14px; align-content: start; }
.home-news-mini {
  display: flex;
  gap: 16px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  transition: all .3s var(--ease);
}
.home-news-mini .thumb {
  flex: none;
  width: 108px;
  height: 84px;
  border-radius: 8px;
  overflow: hidden;
}
.home-news-mini .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.home-news-mini:hover { box-shadow: var(--shadow-sm); transform: translateX(4px); border-color: rgba(255, 75, 0, .3); }
.home-news-mini:hover .thumb img { transform: scale(1.08); }
.home-news-mini .body { min-width: 0; display: flex; flex-direction: column; justify-content: center; gap: 6px; }
.home-news-mini .cat {
  align-self: flex-start;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1px;
}
.home-news-mini h4 { font-size: 15.5px; line-height: 1.55; }
.home-news-mini h4 a { color: var(--ink); transition: color .3s; }
.home-news-mini h4 a:hover { color: var(--accent); }
.home-news-mini .date { font-size: 12.5px; color: var(--grey-light); }
.home-news-grid .news-more-wrap { grid-column: 1 / -1; text-align: center; }

/* ==================== 产品系列图库（服务页） ==================== */
.product-series-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.product-series-item {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--bg-soft);
}
.product-series-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.product-series-item .overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: linear-gradient(180deg, rgba(20, 22, 26, 0) 35%, rgba(20, 22, 26, .82) 100%);
  opacity: 0;
  transition: opacity .4s var(--ease);
}
.product-series-item:hover img { transform: scale(1.07); }
.product-series-item:hover .overlay { opacity: 1; }
.product-series-item .overlay h4 { color: #fff; font-size: 18px; font-weight: 700; letter-spacing: 1px; }
.product-series-item .overlay a {
  color: #fff;
  font-size: 13.5px;
  font-weight: 600;
  padding: 7px 18px;
  border: 1px solid rgba(255, 255, 255, .7);
  border-radius: 24px;
  transition: all .3s;
}
.product-series-item .overlay a:hover { background: var(--accent); border-color: var(--accent); }
.product-series-item.more-item.hidden { display: none; }

/* 「查看更多」醒目按钮 */
.btn.series-more {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  color: #fff;
  border: none;
  border-radius: 32px;
  padding: 16px 52px;
  font-size: 15.5px;
  letter-spacing: 3px;
  box-shadow: 0 10px 28px rgba(255, 75, 0, .35);
}
.btn.series-more::after { content: "\2193"; margin-left: 8px; font-size: 17px; }
.btn.series-more:hover { transform: translateY(-3px); box-shadow: 0 16px 36px rgba(255, 75, 0, .45); color: #fff; }
.btn.series-more:disabled { opacity: .55; cursor: default; transform: none; }

/* ==================== 三大基地图文卡片 ==================== */
.base-media-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.base-media-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: all .35s var(--ease);
}
.base-media-card:hover { box-shadow: var(--shadow-md); transform: translateY(-6px); }
.base-media-img { height: 210px; overflow: hidden; }
.base-media-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.base-media-card:hover .base-media-img img { transform: scale(1.07); }
.base-media-body { padding: 20px 22px 24px; }
.base-media-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.base-media-head h3 { font-size: 19px; color: var(--ink); }
.base-media-head .tag {
  background: var(--accent-tint);
  color: var(--accent-deep);
  font-size: 12.5px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 16px;
}
.base-media-body p { color: var(--grey); font-size: 14.5px; line-height: 1.85; }

/* ==================== 工厂实景：错落拼贴 ==================== */
.factory-head-area { margin-bottom: 42px; }
.factory-mosaic {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 208px;
  gap: 16px;
}
.factory-mosaic .fm-item {
  position: relative;
  display: block;
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-soft);
}
.factory-mosaic .fm-item.w2 { grid-column: span 2; }
.factory-mosaic .fm-item.h2 { grid-row: span 2; }
.factory-mosaic .fm-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
.factory-mosaic .fm-item:hover img { transform: scale(1.07); }
.factory-mosaic .fm-cap {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 34px 16px 13px;
  background: linear-gradient(180deg, transparent, rgba(16, 18, 22, .78));
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1.5px;
}
.factory-mosaic .fm-cap::before {
  content: "";
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 2px;
  margin-right: 8px;
  vertical-align: 1px;
}
.factory-mosaic .fm-item::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(255, 255, 255, .4);
  border-radius: 8px;
  opacity: 0;
  transition: opacity .35s;
  pointer-events: none;
}
.factory-mosaic .fm-item:hover::after { opacity: 1; }

/* 兼容旧版网格写法 */
.factory-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.factory-item {
  position: relative;
  display: block;
  border-radius: 10px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}
.factory-item.big { grid-column: span 2; grid-row: span 2; aspect-ratio: auto; }
.factory-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.factory-item .caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 30px 16px 12px;
  background: linear-gradient(180deg, transparent, rgba(16, 18, 22, .8));
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  opacity: 0;
  transform: translateY(8px);
  transition: all .35s var(--ease);
}
.factory-item:hover img { transform: scale(1.06); }
.factory-item:hover .caption { opacity: 1; transform: translateY(0); }

/* ==================== 新闻中心 Tab ==================== */
.news-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
}
.tab-btn {
  padding: 11px 34px;
  border: 1px solid #d8dce2;
  border-radius: 30px;
  background: #fff;
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all .3s var(--ease);
}
.tab-btn:hover { border-color: var(--accent); color: var(--accent); }
.tab-btn.active {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 8px 22px rgba(255, 75, 0, .32);
}
.news-tab-panel { display: none; }
.news-tab-panel.active { display: block; animation: fadeInUp .5s var(--ease); }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

/* ==================== 新闻列表 ==================== */
.news-list { display: grid; gap: 26px; }
.news-list-item {
  display: flex;
  gap: 26px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: all .35s var(--ease);
}
.news-list-item:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: rgba(255, 75, 0, .3); }
.news-list-item .thumb {
  position: relative;
  flex: none;
  width: 300px;
  min-height: 200px;
  overflow: hidden;
}
.news-list-item .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.news-list-item:hover .thumb img { transform: scale(1.06); }
.news-list-item .body { flex: 1; padding: 24px 26px; display: flex; flex-direction: column; }
.news-list-item .date { display: flex; align-items: baseline; gap: 8px; margin-bottom: 8px; color: var(--accent); }
.news-list-item .date b { font-size: 26px; font-weight: 800; line-height: 1; }
.news-list-item .date span { font-size: 12.5px; opacity: .75; }
.news-list-item h3 { font-size: 19px; line-height: 1.55; margin-bottom: 10px; }
.news-list-item h3 a { color: var(--ink); transition: color .3s; }
.news-list-item h3 a:hover { color: var(--accent); }
.news-list-item p { color: var(--grey); font-size: 14.5px; line-height: 1.8; margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ==================== 产品中心 ==================== */
.cat-bar {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.product-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: all .35s var(--ease);
}
.product-card:hover { box-shadow: var(--shadow-md); transform: translateY(-5px); border-color: rgba(255, 75, 0, .3); }
.product-card .thumb {
  position: relative;
  display: block;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}
.product-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.product-card:hover .thumb img { transform: scale(1.07); }
.product-card .thumb .cat {
  position: absolute;
  left: 12px; top: 12px;
  background: rgba(20, 22, 26, .66);
  color: #fff;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 1px;
  padding: 4px 12px;
  border-radius: 16px;
  backdrop-filter: blur(4px);
}
.product-card .info { padding: 16px 18px 18px; display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.product-card .info h4 { font-size: 16px; color: var(--ink); font-weight: 600; line-height: 1.5; }
.product-card .info .arrow {
  flex: none;
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(255, 75, 0, .45);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  transition: all .3s;
}
.product-card .info .arrow svg { width: 15px; height: 15px; fill: currentColor; }
.product-card:hover .info .arrow { background: linear-gradient(135deg, var(--accent), var(--accent-deep)); color: #fff; border-color: transparent; }

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 46px;
  flex-wrap: wrap;
}
.pagination button {
  min-width: 40px;
  height: 40px;
  padding: 0 14px;
  border: 1px solid #d8dce2;
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  font-size: 14.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all .3s var(--ease);
}
.pagination button:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.pagination button.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  border-color: transparent;
  color: #fff;
}
.pagination button:disabled { opacity: .35; cursor: not-allowed; }
.pagination .page-ellipsis { color: var(--grey-light); padding: 0 2px; }

/* ==================== 详情页通用 ==================== */
.detail-wrap {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 36px;
  align-items: start;
}
.detail-main {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 34px 36px;
}
.detail-head { padding-bottom: 20px; border-bottom: 1px solid var(--border); margin-bottom: 26px; }
.detail-head .meta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 13.5px;
  color: var(--grey-light);
  margin-bottom: 12px;
}
.detail-head .meta .tag {
  background: var(--accent-tint);
  color: var(--accent-deep);
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 14px;
}
.detail-head h1 { font-size: 26px; line-height: 1.5; color: var(--ink); }
.detail-content { font-size: 15.5px; line-height: 2; color: #3d4653; }
.detail-content p { margin-bottom: 18px; }
.detail-content img { width: 100%; border-radius: 10px; margin: 10px 0 22px; }
.detail-content h3 {
  font-size: 19px;
  color: var(--ink);
  margin: 28px 0 14px;
  padding-left: 12px;
  border-left: 3px solid var(--accent);
}
.detail-content ul { padding-left: 22px; margin-bottom: 18px; }
.detail-content li { margin-bottom: 8px; }
.detail-content blockquote {
  border-left: 3px solid var(--accent);
  background: var(--accent-tint);
  padding: 14px 20px;
  border-radius: 0 10px 10px 0;
  margin: 18px 0;
  color: #4a5568;
}

/* 产品详情 */
.pd-top { display: grid; grid-template-columns: 1.05fr 1fr; gap: 30px; margin-bottom: 34px; }
.pd-gallery .main-img {
  border-radius: 14px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--bg-soft);
}
.pd-gallery .main-img img { width: 100%; height: 100%; object-fit: cover; }
.pd-thumbs { display: flex; gap: 10px; margin-top: 12px; }
.pd-thumbs img {
  width: 72px; height: 56px;
  object-fit: cover;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  opacity: .75;
  transition: all .3s;
}
.pd-thumbs img:hover { opacity: 1; }
.pd-thumbs img.active { border-color: var(--accent); opacity: 1; }
.pd-info h1 { font-size: 25px; color: var(--ink); line-height: 1.5; margin-bottom: 14px; }
.pd-info .pd-cat { color: var(--accent); font-weight: 700; font-size: 13.5px; letter-spacing: 1px; margin-bottom: 12px; display: block; }
.pd-info .pd-desc { color: var(--grey); line-height: 1.9; font-size: 14.5px; margin-bottom: 20px; }
.spec-table { width: 100%; border-collapse: collapse; font-size: 14px; margin-bottom: 22px; }
.spec-table th, .spec-table td { border: 1px solid var(--border); padding: 10px 14px; text-align: left; }
.spec-table th { background: var(--bg-light); color: var(--ink); font-weight: 600; width: 34%; white-space: nowrap; }
.spec-table td { color: var(--grey); }
.pd-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* 详情页在线询盘表单 */
.inquiry-wrap {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px 44px;
}
.inquiry-wrap .form-success {
  display: none;
  text-align: center;
  padding: 34px 0;
}
.inquiry-wrap .form-success.show { display: block; }
.inquiry-wrap .form-success .ok-icon {
  width: 64px; height: 64px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--accent-tint);
  display: flex; align-items: center; justify-content: center;
}
.inquiry-wrap .form-success .ok-icon svg { width: 30px; height: 30px; fill: var(--accent); }
.inquiry-wrap .form-success h3 { color: var(--ink); margin-bottom: 8px; }

/* 侧边栏 */
.detail-side { display: grid; gap: 22px; }
.side-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
}
.side-card h4 {
  font-size: 17px;
  color: var(--ink);
  padding-bottom: 14px;
  margin-bottom: 16px;
  border-bottom: 2px solid var(--border);
  position: relative;
}
.side-card h4::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 42px; height: 2px;
  background: var(--accent);
}
.side-item { display: flex; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--border); }
.side-item:last-child { border-bottom: none; padding-bottom: 0; }
.side-item .thumb { flex: none; width: 74px; height: 56px; border-radius: 8px; overflow: hidden; }
.side-item .thumb img { width: 100%; height: 100%; object-fit: cover; }
.side-item h5 { font-size: 14px; line-height: 1.55; margin-bottom: 5px; }
.side-item h5 a { color: var(--ink); transition: color .3s; }
.side-item h5 a:hover { color: var(--accent); }
.side-item .date { font-size: 12px; color: var(--grey-light); }
.side-cta {
  background: linear-gradient(150deg, var(--accent) 0%, var(--accent-deep) 100%);
  border-radius: 14px;
  padding: 26px;
  text-align: center;
  color: #fff;
  overflow: hidden;
  position: relative;
}
.side-cta h4 { color: #fff; font-size: 18px; margin-bottom: 8px; }
.side-cta p { color: rgba(255, 255, 255, .88); font-size: 13.5px; line-height: 1.8; margin-bottom: 16px; }
.side-cta .btn { width: 100%; justify-content: center; background: #fff; color: var(--accent-deep); box-shadow: none; }
.side-cta .btn:hover { color: var(--accent); }

/* 侧栏二维码 + 热线 */
.side-qr { display: flex; flex-direction: column; align-items: center; gap: 12px; margin-bottom: 18px; }
.side-qr-img { width: 150px; height: 150px; padding: 9px; background: #fff; border-radius: 12px; box-shadow: 0 6px 18px rgba(0, 0, 0, .16); position: relative; }
.side-qr-img img { width: 100%; height: 100%; display: block; }
.side-qr-img::after {
  content: "";
  position: absolute;
  inset: -5px;
  border: 1px solid rgba(255, 255, 255, .45);
  border-radius: 16px;
  pointer-events: none;
}
.side-qr span { font-size: 12.5px; color: rgba(255, 255, 255, .92); line-height: 1.75; }
.side-qr b { color: #ffe3d4; font-weight: 700; }
.side-hotline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  font-size: 13px;
  color: rgba(255, 255, 255, .95);
  margin-bottom: 16px;
}
.side-hotline svg { width: 15px; height: 15px; fill: #ffe3d4; flex: none; }
.side-hotline a { color: #fff; font-weight: 700; text-decoration: none; border-bottom: 1px dashed rgba(255, 255, 255, .5); }

/* 移动端菜单关闭按钮 */
.nav-close {
  position: absolute;
  top: 22px; right: 22px;
  width: 38px; height: 38px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-light);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
}
.nav-close svg { width: 18px; height: 18px; fill: var(--ink); }
.nav-close:hover { background: var(--accent-tint); border-color: var(--accent); }
.nav-close:hover svg { fill: var(--accent); }

/* 侧边新闻分类 */
.side-cats { display: grid; gap: 10px; }
.side-cats a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--white);
  color: var(--ink);
  font-size: 14.5px;
  font-weight: 600;
  transition: all .3s var(--ease);
}
.side-cats a .count {
  font-size: 12px;
  font-weight: 700;
  color: var(--grey-light);
  background: var(--bg-light);
  border-radius: 12px;
  padding: 2px 10px;
}
.side-cats a:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-tint); }
.side-cats a:hover .count { background: var(--accent); color: #fff; }
.side-cats a.active { background: linear-gradient(135deg, var(--accent), var(--accent-deep)); border-color: transparent; color: #fff; }
.side-cats a.active .count { background: rgba(255, 255, 255, .25); color: #fff; }

/* 详情页上下篇 */
.detail-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
}
.detail-nav a {
  max-width: 48%;
  color: var(--ink);
  font-size: 14.5px;
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: color .3s;
}
.detail-nav a:hover { color: var(--accent); }
.detail-nav a span { font-size: 12px; color: var(--grey-light); letter-spacing: 1px; }
.detail-nav a.next { text-align: right; margin-left: auto; }

/* 相关产品 */
.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.related-grid .product-card .info { padding: 12px 14px; }
.related-grid .product-card .info h4 { font-size: 14.5px; }

/* ==================== 新组件响应式 ==================== */
@media (max-width: 1080px) {
  .client-logo-wall { gap: 12px; }
  .client-logo-item { padding: 14px 12px; }
  .detail-wrap { grid-template-columns: 1fr; }
  .factory-mosaic { grid-template-columns: repeat(3, 1fr); }
  .related-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .home-news-grid { grid-template-columns: 1fr; }
  .product-series-grid, .product-grid, .base-media-grid { grid-template-columns: repeat(2, 1fr); }
  .news-list-item { flex-direction: column; }
  .news-list-item .thumb { width: 100%; min-height: 200px; }
  .pd-top { grid-template-columns: 1fr; }
  .inquiry-wrap { padding: 28px 22px; }
}
@media (max-width: 768px) {
  .client-logo-wall { grid-template-columns: repeat(2, 1fr); }
  .factory-mosaic { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 160px; }
  .factory-mosaic .fm-item.w2 { grid-column: span 2; }
  .news-tabs .tab-btn, .cat-bar .tab-btn { padding: 9px 22px; font-size: 14px; }
  .detail-main { padding: 22px 18px; }
  .detail-head h1 { font-size: 21px; }
  .pd-info h1 { font-size: 20px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .product-series-grid, .product-grid, .base-media-grid { grid-template-columns: 1fr; }
  .home-news-mini .thumb { width: 88px; height: 70px; }
  .client-logo-item { height: 72px; padding: 12px 14px; }
  .client-logo-item .client-name { font-size: 14px; }
  .client-logo-item.stat b { font-size: 20px; }
  .client-logo-item.stat span { font-size: 11px; letter-spacing: 1px; }
  .factory-mosaic { grid-auto-rows: 130px; }
}

/* ================= v16: 首页产品展示（三大系列） ================= */
.showcase { position: relative; }
.showcase-wrap { display: grid; grid-template-columns: 300px 1fr; gap: 26px; align-items: stretch; }

/* ---- 左侧系列 Tab ---- */
.showcase-tabs { display: flex; flex-direction: column; gap: 14px; }
.showcase-tab {
  position: relative; display: flex; align-items: center; gap: 16px;
  padding: 20px 20px 24px; background: #fff; border: 1px solid #ece7e0;
  border-radius: 16px; cursor: pointer; text-align: left; overflow: hidden;
  transition: border-color .3s ease, transform .3s ease, box-shadow .3s ease;
}
.showcase-tab::before {
  content: ""; position: absolute; left: 0; top: 14px; bottom: 14px; width: 4px;
  border-radius: 0 4px 4px 0; background: linear-gradient(180deg, var(--accent), var(--accent-deep));
  opacity: 0; transition: opacity .3s ease;
}
.showcase-tab:hover { border-color: #ffd2bd; transform: translateX(4px); }
.showcase-tab.active {
  border-color: var(--accent); box-shadow: 0 14px 32px rgba(255, 75, 0, .13);
  background: linear-gradient(135deg, #fff6f0, #fff 60%);
}
.showcase-tab.active::before { opacity: 1; }
.showcase-tab .no {
  font-size: 34px; font-weight: 800; line-height: 1; letter-spacing: -1px;
  color: #e9e3da; transition: color .3s ease; font-variant-numeric: tabular-nums;
}
.showcase-tab.active .no { color: var(--accent); }
.showcase-tab .txt { flex: 1; min-width: 0; }
.showcase-tab .txt b { display: block; font-size: 17px; color: var(--ink); }
.showcase-tab .txt i { display: block; margin-top: 3px; font-style: normal; font-size: 12px; color: #9a948b; letter-spacing: .4px; }
.showcase-tab .arr { width: 28px; height: 28px; border-radius: 50%; background: #f5f1ea;
  display: flex; align-items: center; justify-content: center; flex: none; transition: all .3s ease; }
.showcase-tab .arr svg { width: 15px; height: 15px; fill: #b3ac9f; transition: fill .3s ease; }
.showcase-tab.active .arr { background: var(--accent); }
.showcase-tab.active .arr svg { fill: #fff; }
.showcase-tab .bar { position: absolute; left: 0; bottom: 0; height: 3px; width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-light)); }
.showcase-tab.active .bar { animation: scBar 6s linear forwards; }
@keyframes scBar { to { width: 100%; } }

/* ---- 右侧展示舞台 ---- */
.showcase-stage { position: relative; display: grid; grid-template-columns: .88fr 1fr; grid-template-rows: repeat(3, auto); gap: 16px; }
.showcase-watermark {
  position: absolute; right: -14px; top: -46px; z-index: 0; pointer-events: none;
  font-size: 170px; font-weight: 800; line-height: 1; letter-spacing: -6px;
  color: transparent; -webkit-text-stroke: 1.5px rgba(255, 75, 0, .14);
}

/* 特写大卡 */
.showcase-feature { position: relative; grid-row: 1 / 4; border-radius: 20px; overflow: hidden;
  display: flex; flex-direction: column; min-height: 258px; background: #efe9e0;
  box-shadow: 0 18px 44px rgba(34, 38, 46, .12); }
.showcase-feature .pic { position: relative; flex: 1; min-height: 150px; overflow: hidden; }
.showcase-feature .pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s cubic-bezier(.2, .6, .2, 1); }
.showcase-feature:hover .pic img { transform: scale(1.05); }
.showcase-feature .info { position: relative; flex: none; padding: 13px 18px 15px;
  background: linear-gradient(180deg, rgba(30, 22, 14, .72), rgba(15, 12, 8, .93)); color: #fff; }
.showcase-feature .veil { display: none; }
.showcase-feature .tag { display: inline-block; padding: 3px 10px; border-radius: 999px;
  background: rgba(255, 75, 0, .92); color: #fff; font-size: 10px; font-weight: 600; letter-spacing: 1.5px; margin-bottom: 7px; }
.showcase-feature h3 { font-size: 17px; font-weight: 700; margin-bottom: 5px; }
.showcase-feature p { font-size: 12px; line-height: 1.65; color: rgba(255, 255, 255, .82); margin-bottom: 9px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.showcase-feature .link { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; color: #ffb08c; }
.showcase-feature .link svg { width: 16px; height: 16px; fill: currentColor; transition: transform .3s ease; }
.showcase-feature .link:hover svg { transform: translateX(4px); }

/* 小卡 2x3 */
.showcase-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; z-index: 1;
  grid-column: 2; grid-row: 1 / 4; }
.showcase-card { background: #fff; border: 1px solid #ece7e0; border-radius: 16px; overflow: hidden;
  display: flex; flex-direction: column; transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease; }
.showcase-card .pic { display: block; height: 118px; overflow: hidden; background: #f5f1ea; }
.showcase-card .pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.showcase-card h4 { padding: 11px 13px 13px; font-size: 13px; font-weight: 600; color: var(--ink); line-height: 1.45; }
.showcase-card:hover { transform: translateY(-6px); border-color: var(--accent-light); box-shadow: 0 16px 34px rgba(34, 38, 46, .12); }
.showcase-card:hover .pic img { transform: scale(1.07); }

/* 切换入场动画 */
.sc-enter .showcase-feature { animation: scIn .55s .05s cubic-bezier(.2, .7, .3, 1) both; }
.sc-enter .showcase-card:nth-child(1) { animation: scIn .5s .12s cubic-bezier(.2, .7, .3, 1) both; }
.sc-enter .showcase-card:nth-child(2) { animation: scIn .5s .18s cubic-bezier(.2, .7, .3, 1) both; }
.sc-enter .showcase-card:nth-child(3) { animation: scIn .5s .24s cubic-bezier(.2, .7, .3, 1) both; }
.sc-enter .showcase-card:nth-child(4) { animation: scIn .5s .30s cubic-bezier(.2, .7, .3, 1) both; }
.sc-enter .showcase-card:nth-child(5) { animation: scIn .5s .36s cubic-bezier(.2, .7, .3, 1) both; }
.sc-enter .showcase-card:nth-child(6) { animation: scIn .5s .42s cubic-bezier(.2, .7, .3, 1) both; }
@keyframes scIn { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: translateY(0); } }

.showcase-more { margin-top: 38px; }

/* ---- 响应式 ---- */
@media (max-width: 1100px) {
  .showcase-wrap { grid-template-columns: 260px 1fr; gap: 20px; }
  .showcase-feature { min-height: 260px; }
  .showcase-watermark { font-size: 130px; top: -34px; }
}
@media (max-width: 992px) {
  .showcase-wrap { grid-template-columns: 1fr; }
  .showcase-tabs { flex-direction: row; overflow-x: auto; padding-bottom: 6px; scrollbar-width: none; }
  .showcase-tabs::-webkit-scrollbar { display: none; }
  .showcase-tab { flex: 1 0 auto; min-width: 210px; padding: 16px 16px 20px; }
  .showcase-tab .no { font-size: 26px; }
  .showcase-stage { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .showcase-feature { grid-row: auto; grid-column: 1 / -1; min-height: 260px; }
  .showcase-list { grid-column: 1 / -1; grid-row: auto; grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .showcase-watermark { font-size: 110px; top: -26px; right: -6px; }
}
@media (max-width: 640px) {
  .showcase-stage { grid-template-columns: 1fr; }
  .showcase-feature { min-height: 224px; }
  .showcase-feature .pic { min-height: 124px; }
  .showcase-feature h3 { font-size: 18px; }
  .showcase-feature .info { padding: 13px 18px 15px; }
  .showcase-list { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .showcase-card .pic { height: 104px; }
  .showcase-watermark { font-size: 90px; letter-spacing: -3px; }
  .showcase-more { margin-top: 30px; }
}

/* ================= v20: 导航「我们的服务」下拉菜单 ================= */
.nav-menu > li.has-sub > a { display: inline-flex; align-items: center; gap: 5px; }
.nav-menu > li.has-sub .sub-caret { width: 15px; height: 15px; fill: currentColor; opacity: .55;
  transition: transform .3s var(--ease); }
.nav-menu > li.has-sub:hover .sub-caret { transform: rotate(180deg); }
.sub-menu { position: absolute; top: calc(100% + 6px); left: 0; min-width: 172px; background: #fff;
  border: 1px solid #f0ebe4; border-radius: 14px; box-shadow: 0 22px 48px rgba(20, 24, 32, .15);
  padding: 8px; opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity .28s var(--ease), transform .28s var(--ease), visibility .28s; z-index: 60; }
.nav-menu > li.has-sub:hover .sub-menu,
.nav-menu > li.has-sub:focus-within .sub-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.sub-menu li a { display: block; padding: 10px 14px; border-radius: 9px; font-size: 14px;
  color: var(--ink); white-space: nowrap; transition: background .22s ease, color .22s ease; }
.sub-menu li a:hover, .sub-menu li.active a { background: var(--accent-tint); color: var(--accent-deep); }

@media (max-width: 992px) {
  .nav-menu > li.has-sub > a { justify-content: space-between; }
  .nav-menu > li.has-sub .sub-caret { opacity: .8; }
  .sub-menu { position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: none; border-radius: 0; padding: 0; margin: 0;
    background: rgba(255, 75, 0, .04); min-width: 0; }
  .sub-menu li a { padding: 13px 30px 13px 46px; font-size: 15px; border-radius: 0;
    border-bottom: 1px dashed #efe9e0; }
  .sub-menu li a:hover, .sub-menu li.active a { background: none; color: var(--accent); }
}

/* ================= v21: 产品详情图片灯箱 ================= */
.pd-gallery .main-img { position: relative; cursor: zoom-in; }
.pd-gallery .main-img::after {
  content: "\2297  点击放大";
  position: absolute; right: 12px; bottom: 12px;
  padding: 6px 13px; border-radius: 999px;
  background: rgba(20, 22, 28, .58); color: #fff;
  font-size: 12px; letter-spacing: .5px;
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  opacity: 0; transform: translateY(4px);
  transition: opacity .3s var(--ease), transform .3s var(--ease);
  pointer-events: none;
}
.pd-gallery .main-img:hover::after { opacity: 1; transform: translateY(0); }

.pd-lightbox {
  position: fixed; inset: 0; z-index: 999;
  display: flex; align-items: center; justify-content: center; gap: 18px;
  background: rgba(16, 14, 11, .9);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  opacity: 0; visibility: hidden; transition: opacity .3s ease, visibility .3s;
}
.pd-lightbox.open { opacity: 1; visibility: visible; }
.pd-lightbox .lb-stage {
  margin: 0; max-width: min(86vw, 1000px); display: flex; flex-direction: column; align-items: center;
  animation: lbIn .35s var(--ease);
}
@keyframes lbIn { from { opacity: 0; transform: scale(.94); } to { opacity: 1; transform: scale(1); } }
.pd-lightbox .lb-stage img {
  max-width: 100%; max-height: 78vh; border-radius: 12px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .55);
  object-fit: contain; background: #fff;
}
.pd-lightbox .lb-caption {
  margin-top: 14px; color: rgba(255, 255, 255, .85);
  font-size: 14px; letter-spacing: .5px;
}
.pd-lightbox .lb-close {
  position: absolute; top: 22px; right: 26px; z-index: 2;
  width: 42px; height: 42px; border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 50%; background: rgba(255, 255, 255, .08);
  color: #fff; font-size: 22px; line-height: 1; cursor: pointer;
  transition: all .25s ease;
}
.pd-lightbox .lb-close:hover { background: var(--accent); border-color: var(--accent); transform: rotate(90deg); }
.pd-lightbox .lb-btn {
  flex: none; width: 48px; height: 48px; border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 50%; background: rgba(255, 255, 255, .08);
  color: #fff; font-size: 26px; line-height: 1; cursor: pointer;
  transition: all .25s ease;
}
.pd-lightbox .lb-btn:hover { background: var(--accent); border-color: var(--accent); }
@media (max-width: 640px) {
  .pd-lightbox { gap: 10px; }
  .pd-lightbox .lb-btn { width: 38px; height: 38px; font-size: 20px; }
  .pd-lightbox .lb-close { top: 14px; right: 16px; width: 36px; height: 36px; font-size: 18px; }
  .pd-lightbox .lb-stage img { max-height: 70vh; }
  .pd-gallery .main-img::after { opacity: 1; transform: none; }
}

/* ================= v22: 手机端溢出与灯箱移动优化 ================= */
html { overflow-x: hidden; }
.pd-gallery .main-img::after { content: "🔍 点击放大"; font-size: 12px; }
.pd-lightbox { touch-action: pinch-zoom; }
.pd-lightbox .lb-stage img { -webkit-user-select: none; user-select: none; }

/* ================= v23: 悬浮栏微信按钮 + 二维码弹窗 ================= */
.float-btn.wechat {
  background: linear-gradient(135deg, #2dc100, #07c160);
  color: #fff; border-color: transparent;
  box-shadow: 0 10px 24px rgba(7, 193, 96, .35);
  animation: wxPulse 2.6s ease-out infinite;
}
.float-btn.wechat:hover {
  background: linear-gradient(135deg, #07c160, #06ad56);
  color: #fff; transform: translateY(-3px);
}
@keyframes wxPulse {
  0% { box-shadow: 0 10px 24px rgba(7, 193, 96, .35), 0 0 0 0 rgba(7, 193, 96, .45); }
  70% { box-shadow: 0 10px 24px rgba(7, 193, 96, .35), 0 0 0 12px rgba(7, 193, 96, 0); }
  100% { box-shadow: 0 10px 24px rgba(7, 193, 96, .35), 0 0 0 0 rgba(7, 193, 96, 0); }
}
@media (prefers-reduced-motion: reduce) { .float-btn.wechat { animation: none; } }

.wx-modal {
  position: fixed; inset: 0; z-index: 1200;
  display: flex; align-items: center; justify-content: center;
  background: rgba(16, 14, 11, .72);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  opacity: 0; visibility: hidden;
  transition: opacity .3s ease, visibility .3s;
}
.wx-modal.open { opacity: 1; visibility: visible; }
.wx-card {
  position: relative; width: min(320px, calc(100vw - 48px));
  background: #fff; border-radius: 22px; padding: 30px 26px 26px;
  text-align: center; box-shadow: 0 34px 80px rgba(20, 24, 32, .3);
  transform: translateY(18px) scale(.96); transition: transform .35s var(--ease);
}
.wx-modal.open .wx-card { transform: translateY(0) scale(1); }
.wx-close {
  position: absolute; top: 12px; right: 14px;
  width: 34px; height: 34px; border: none; border-radius: 50%;
  background: #f5f1ea; color: #6b655c; font-size: 20px; line-height: 1; cursor: pointer;
  transition: all .25s ease;
}
.wx-close:hover { background: var(--accent); color: #fff; transform: rotate(90deg); }
.wx-head { display: flex; align-items: center; justify-content: center; gap: 9px; margin-bottom: 18px; }
.wx-head svg { width: 26px; height: 26px; fill: #07c160; flex: none; }
.wx-head b { font-size: 17px; color: var(--ink); }
.wx-qr {
  display: inline-block; padding: 12px; border-radius: 16px;
  background: #fff; border: 2px dashed #bfe8cf;
  transition: border-color .3s ease;
}
.wx-qr:hover { border-color: #07c160; }
.wx-qr img { display: block; width: 176px; height: 176px; }
.wx-tip { margin-top: 16px; font-size: 14px; line-height: 1.75; color: var(--ink); }
.wx-tip b { color: #07c160; }
.wx-sub { margin-top: 8px; font-size: 12.5px; color: #9a948b; }
@media (max-width: 640px) {
  .wx-card { padding: 24px 20px 22px; }
  .wx-qr img { width: 150px; height: 150px; }
  .wx-head b { font-size: 16px; }
}

/* ===== v24 静态数据分组显隐（数据内置于 HTML，JS 仅切换 active 类） ===== */
/* 首页产品展示舞台：非当前系列隐藏 */
.showcase-stage .showcase-watermark:not(.active),
.showcase-stage .showcase-feature:not(.active),
.showcase-stage .showcase-list:not(.active) { display: none; }
/* 首页新闻中心：非当前 Tab 分组隐藏 */
.home-news-grid .home-news-feature:not(.active),
.home-news-grid .home-news-list:not(.active) { display: none; }
/* 新闻中心列表页：非当前分类隐藏 */
.news-list:not(.active) { display: none; }
/* 产品中心：前端筛选隐藏非当前分类卡片 */
.product-card[hidden] { display: none !important; }

/* ===== v25: 移动端抽屉菜单优化 ===== */
@media (max-width: 992px) {
  /* 抽屉顶部留白收紧 + 顶部对齐（原 flex-end 把菜单推到底部） */
  .nav-menu { padding-top: 76px; justify-content: flex-start; }
  /* 「我们的服务」子菜单默认收起，点击展开（配合 main.js 手风琴切换） */
  .sub-menu { max-height: 0; overflow: hidden; transition: max-height .38s var(--ease); }
  .nav-menu > li.has-sub.open .sub-menu { max-height: 220px; }
  .nav-menu > li.has-sub .sub-caret { transition: transform .3s var(--ease); }
  .nav-menu > li.has-sub.open .sub-caret { transform: rotate(180deg); }
  .nav-menu > li.has-sub > a { cursor: pointer; }
}