/* ============ 厦门鼎力盛科技 官网 ============ */
:root {
  --blue: #1256c4;
  --blue-deep: #0a2a5e;
  --blue-darker: #071d40;
  --orange: #ff7d1a;
  --gray-bg: #f5f7fa;
  --text: #333;
  --text-2: #666;
  --line: #e5e9f0;
  --radius: 8px;
  --shadow: 0 6px 24px rgba(10, 42, 94, .08);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 86px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
.container { width: min(1200px, 92%); margin: 0 auto; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block;
  padding: 10px 26px;
  border-radius: 4px;
  font-size: 15px;
  letter-spacing: 1px;
  border: 1px solid transparent;
  transition: all .25s;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--orange); }
.btn-ghost { border-color: rgba(255,255,255,.7); color: #fff; }
.btn-ghost:hover { background: #fff; color: var(--blue-deep); }
.btn-line { border-color: var(--blue); color: var(--blue); padding: 7px 22px; font-size: 14px; }
.btn-line:hover { background: var(--blue); color: #fff; }
.btn-lg { padding: 14px 40px; font-size: 17px; }

/* ---------- 顶部欢迎条 ---------- */
.topbar {
  background: var(--blue-deep);
  color: rgba(255,255,255,.85);
  font-size: 13px;
}
.topbar-in { display: flex; justify-content: space-between; align-items: center; height: 34px; }
.topbar-tel a { color: #ffd9b0; font-weight: 600; }

/* ---------- 头部 ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s;
}
.header.is-scrolled { box-shadow: 0 4px 18px rgba(10,42,94,.12); }
.header-in { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 24px; }
.logo { display: flex; align-items: center; gap: 12px; min-width: 0; }
.logo-mark {
  flex: none;
  width: 46px; height: 46px;
  background: linear-gradient(135deg, var(--blue), var(--blue-deep));
  color: #fff;
  border-radius: 10px;
  font-size: 26px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.25; min-width: 0; }
.logo-text strong { font-size: 20px; color: var(--blue-deep); letter-spacing: 2px; white-space: nowrap; }
.logo-text em { font-style: normal; font-size: 10.5px; color: #9aa7bd; letter-spacing: .4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  padding: 8px 16px;
  font-size: 16px;
  color: var(--text);
  border-radius: 4px;
  transition: color .2s;
  white-space: nowrap;
}
.nav a:hover, .nav a.active { color: var(--blue); }
.nav a.active { font-weight: 600; }
.nav-tel {
  margin-left: 12px;
  background: var(--blue);
  color: #fff !important;
  border-radius: 20px;
  padding: 8px 20px !important;
}
.nav-tel:hover { background: var(--orange) !important; }
.nav-toggle { display: none; background: none; border: 0; padding: 8px; }
.nav-toggle i { display: block; width: 24px; height: 3px; background: var(--blue-deep); margin: 5px 0; border-radius: 2px; transition: .3s; }

/* ---------- 轮播 ---------- */
.hero { position: relative; overflow: hidden; }
.hero-slide { position: relative; display: none; height: min(620px, 72vh); min-height: 420px; }
.hero-slide.is-active { display: block; }
.hero-slide img { width: 100%; height: 100%; object-fit: cover; }
.hero-mask {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(7,29,64,.82) 10%, rgba(10,42,94,.55) 55%, rgba(10,42,94,.25));
}
.hero-caption {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; justify-content: center;
  color: #fff;
}
.hero-en { font-size: 14px; letter-spacing: 5px; color: #8fb4f2; margin-bottom: 14px; }
.hero-caption h1 { font-size: clamp(28px, 4.2vw, 50px); line-height: 1.35; letter-spacing: 3px; margin-bottom: 16px; text-shadow: 0 2px 12px rgba(0,0,0,.35); }
.hero-sub { font-size: clamp(14px, 1.6vw, 19px); color: rgba(255,255,255,.9); margin-bottom: 34px; letter-spacing: 1px; }
.hero-caption .btn { margin-right: 14px; }
.hero-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 46px; height: 46px; border-radius: 50%;
  background: rgba(255,255,255,.18); color: #fff;
  border: 1px solid rgba(255,255,255,.4);
  font-size: 26px; line-height: 1;
  transition: background .25s;
  z-index: 5;
}
.hero-arrow:hover { background: var(--blue); }
.hero-prev { left: 3%; }
.hero-next { right: 3%; }
.hero-dots {
  position: absolute; bottom: 22px; left: 0; right: 0;
  display: flex; justify-content: center; gap: 10px;
  z-index: 5;
}
.hero-dots button {
  width: 34px; height: 4px; border: 0; border-radius: 2px;
  background: rgba(255,255,255,.4);
  transition: background .3s;
}
.hero-dots button.is-active { background: var(--orange); }

/* ---------- 区块通用 ---------- */
.section { padding: 72px 0; }
.section-gray { background: var(--gray-bg); }
.section-dark { background: linear-gradient(135deg, var(--blue-deep), #0d3a80); color: #fff; }
.sec-head { text-align: center; margin-bottom: 46px; }
.sec-en { font-size: 14px; letter-spacing: 6px; color: var(--blue); font-weight: 600; }
.sec-title { font-size: clamp(26px, 3vw, 34px); letter-spacing: 3px; margin: 6px 0 10px; position: relative; display: inline-block; padding-bottom: 14px; }
.sec-title::after {
  content: "";
  position: absolute; left: 50%; transform: translateX(-50%); bottom: 0;
  width: 46px; height: 3px;
  background: var(--orange); border-radius: 2px;
}
.sec-sub { color: var(--text-2); font-size: 15px; }
.sec-head-light .sec-en { color: #8fb4f2; }
.sec-head-light .sec-title { color: #fff; }
.sec-head-light .sec-sub { color: rgba(255,255,255,.8); }

/* ---------- 关于我们 ---------- */
.about-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; }
.about-text h3 { font-size: 24px; color: var(--blue-deep); margin-bottom: 16px; letter-spacing: 1px; }
.about-text p { color: var(--text-2); margin-bottom: 14px; }
.about-text b { color: var(--blue); }
.about-text .btn { margin-top: 8px; }
.about-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.stat {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 10px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform .25s, border-color .25s;
}
.stat:hover { transform: translateY(-4px); border-color: var(--blue); }
.stat b { display: block; font-size: 32px; color: var(--blue); font-weight: 700; line-height: 1.2; }
.stat b i { font-style: normal; color: var(--orange); font-size: 20px; }
.stat span { display: block; font-size: 14px; color: var(--text-2); margin-top: 6px; }
.stat em { font-style: normal; font-size: 10px; letter-spacing: 2px; color: #9aa7bd; }

.culture-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 48px; }
.culture {
  background: #fff;
  border-top: 3px solid var(--blue);
  border-radius: 0 0 var(--radius) var(--radius);
  padding: 24px 20px;
  box-shadow: var(--shadow);
  transition: transform .25s;
}
.culture:hover { transform: translateY(-4px); border-top-color: var(--orange); }
.culture i { font-style: normal; font-size: 26px; font-weight: 700; color: #e3eaf5; }
.culture h4 { font-size: 17px; color: var(--blue-deep); margin: 6px 0 10px; }
.culture h4 em { font-style: normal; font-size: 11px; color: #9aa7bd; letter-spacing: 2px; margin-left: 6px; }
.culture p { font-size: 14px; color: var(--text-2); }

/* ---------- 产品中心 ---------- */
.prod-tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 36px; }
.prod-tab {
  padding: 10px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 22px;
  font-size: 15px;
  color: var(--text);
  transition: all .25s;
}
.prod-tab:hover { border-color: var(--blue); color: var(--blue); }
.prod-tab.is-active { background: var(--blue); border-color: var(--blue); color: #fff; }
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.prod-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .25s, box-shadow .25s;
}
.prod-card:hover { transform: translateY(-6px); box-shadow: 0 14px 34px rgba(10,42,94,.16); }
.prod-card-wide { grid-column: span 2; }
.prod-img { height: 230px; overflow: hidden; background: #fff; border-bottom: 1px solid var(--line); }
.prod-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.prod-card:hover .prod-img img { transform: scale(1.05); }
.prod-img-fill img { object-fit: contain; padding: 14px; background: radial-gradient(circle at 50% 40%, #f2f6fd, #fff); }
.prod-body { padding: 22px; display: flex; flex-direction: column; flex: 1; }
.prod-tag { font-size: 12px; letter-spacing: 2px; color: var(--orange); font-weight: 600; }
.prod-body h3 { font-size: 19px; color: var(--blue-deep); margin: 6px 0 12px; }
.prod-body ul { flex: 1; margin-bottom: 16px; }
.prod-body li { font-size: 14px; color: var(--text-2); padding-left: 18px; position: relative; margin-bottom: 5px; }
.prod-body li::before { content: ""; position: absolute; left: 0; top: 10px; width: 7px; height: 7px; background: var(--blue); border-radius: 50%; }

/* ---------- 防伪溯源 ---------- */
.section-dark .sec-head { margin-bottom: 56px; }
.trace-flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.trace-step {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius);
  padding: 26px 18px;
  position: relative;
  transition: background .25s, transform .25s;
}
.trace-step:hover { background: rgba(255,255,255,.13); transform: translateY(-4px); }
.trace-step i {
  font-style: normal;
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--orange); color: #fff;
  font-size: 16px; font-weight: 700;
  margin-bottom: 14px;
}
.trace-step h4 { font-size: 17px; margin-bottom: 8px; letter-spacing: 1px; }
.trace-step p { font-size: 13.5px; color: rgba(255,255,255,.75); }
.trace-step:not(:last-child)::after {
  content: "›";
  position: absolute; right: -14px; top: 50%; transform: translateY(-50%);
  color: var(--orange); font-size: 22px; z-index: 2;
}

/* ---------- 服务 ---------- */
.offer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.offer {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.offer:hover { transform: translateY(-6px); box-shadow: 0 14px 34px rgba(10,42,94,.14); border-color: var(--blue); }
.offer svg { width: 44px; height: 44px; color: var(--blue); margin-bottom: 16px; }
.offer:hover svg { color: var(--orange); }
.offer h3 { font-size: 19px; color: var(--blue-deep); margin-bottom: 10px; }
.offer p { font-size: 14px; color: var(--text-2); margin-bottom: 14px; }
.offer a { font-size: 14px; color: var(--blue); font-weight: 600; }
.offer a:hover { color: var(--orange); }

/* ---------- 优势 ---------- */
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.adv {
  background: #fff;
  border-radius: var(--radius);
  padding: 30px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform .25s;
}
.adv:hover { transform: translateY(-5px); }
.adv b { display: block; font-size: 38px; color: var(--blue); line-height: 1.2; }
.adv b i { font-style: normal; color: var(--orange); font-size: 24px; }
.adv h3 { font-size: 18px; color: var(--blue-deep); margin: 8px 0 10px; }
.adv p { font-size: 13.5px; color: var(--text-2); }
.quote {
  margin-top: 40px;
  padding: 30px 36px;
  background: #fff;
  border-left: 4px solid var(--orange);
  border-radius: 0 var(--radius) var(--radius) 0;
  box-shadow: var(--shadow);
  text-align: center;
}
.quote p { color: var(--text-2); font-size: 15px; letter-spacing: 1px; }

/* ---------- 行业 ---------- */
.industry-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }
.industry-row span {
  padding: 12px 34px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 26px;
  font-size: 16px;
  letter-spacing: 2px;
  color: var(--blue-deep);
  box-shadow: var(--shadow);
  transition: all .25s;
}
.industry-row span:hover { background: var(--blue); border-color: var(--blue); color: #fff; }

/* ---------- 联系 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 30px; }
.contact-info { display: flex; flex-direction: column; gap: 18px; }
.contact-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 24px;
  box-shadow: var(--shadow);
}
.contact-item h4 { font-size: 13px; letter-spacing: 2px; color: #9aa7bd; margin-bottom: 6px; }
.contact-item p { font-size: 17px; color: var(--blue-deep); font-weight: 600; }
.contact-item a:hover { color: var(--orange); }
.contact-cta {
  background: linear-gradient(135deg, var(--blue), var(--blue-deep));
  border-radius: var(--radius);
  color: #fff;
  padding: 40px 38px;
  display: flex; flex-direction: column; justify-content: center;
}
.contact-cta h3 { font-size: 26px; letter-spacing: 2px; margin-bottom: 12px; }
.contact-cta p { color: rgba(255,255,255,.85); margin-bottom: 26px; }
.contact-cta .btn-primary { background: var(--orange); align-self: flex-start; }
.contact-cta .btn-primary:hover { background: #fff; color: var(--blue-deep); }
.contact-note { font-size: 13px !important; color: rgba(255,255,255,.6) !important; margin: 18px 0 0 !important; }

/* ---------- 页脚 ---------- */
.footer { background: var(--blue-darker); color: rgba(255,255,255,.75); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
  gap: 34px;
  padding: 54px 0 40px;
}
.logo-light .logo-text strong { color: #fff; }
.logo-light .logo-text em { color: rgba(255,255,255,.45); }
.footer-about p { font-size: 13.5px; margin-top: 16px; }
.footer-col h4 { color: #fff; font-size: 16px; letter-spacing: 2px; margin-bottom: 16px; }
.footer-col a { display: block; font-size: 14px; padding: 4px 0; color: rgba(255,255,255,.68); }
.footer-col a:hover { color: var(--orange); }
.footer-col p { font-size: 14px; padding: 2px 0; }
.footer-col p a:hover { color: var(--orange); }
.footer-bar { border-top: 1px solid rgba(255,255,255,.1); padding: 16px 0; font-size: 13px; text-align: center; color: rgba(255,255,255,.5); }

/* ---------- 悬浮工具条 ---------- */
.float-bar {
  position: fixed; right: 16px; bottom: 90px;
  display: flex; flex-direction: column; gap: 10px;
  z-index: 90;
  opacity: 0; visibility: hidden;
  transform: translateY(10px);
  transition: all .3s;
}
.float-bar.is-visible { opacity: 1; visibility: visible; transform: none; }
.float-bar a, .float-bar button {
  width: 52px; padding: 10px 0;
  background: var(--blue);
  color: #fff;
  border: 0; border-radius: 8px;
  font-size: 12.5px;
  text-align: center;
  box-shadow: 0 6px 18px rgba(10,42,94,.28);
  transition: background .25s;
}
.float-bar a:hover, .float-bar button:hover { background: var(--orange); }
.float-tel svg { width: 20px; height: 20px; display: block; margin: 0 auto 2px; }

/* ---------- 入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .prod-card-wide { grid-column: span 2; }
  .offer-grid, .adv-grid, .culture-grid { grid-template-columns: repeat(2, 1fr); }
  .trace-flow { grid-template-columns: repeat(3, 1fr); }
  .trace-step:nth-child(3)::after { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 52px 0; }
  .topbar-in { justify-content: center; }
  .topbar-in span:first-child { display: none; }
  .nav-toggle { display: block; }
  .nav {
    position: absolute; top: 76px; left: 0; right: 0;
    flex-direction: column; align-items: stretch;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: 10px 4%;
    gap: 2px;
    display: none;
    box-shadow: 0 12px 24px rgba(10,42,94,.12);
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 12px 10px; border-bottom: 1px dashed var(--line); }
  .nav-tel { margin: 10px 0 4px; text-align: center; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .stat { padding: 16px 6px; }
  .stat b { font-size: 26px; }
  .prod-grid { grid-template-columns: 1fr; }
  .prod-card-wide { grid-column: span 1; }
  .offer-grid, .adv-grid, .culture-grid, .trace-flow { grid-template-columns: 1fr; }
  .trace-step::after { display: none !important; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; padding: 40px 0 30px; }
  .hero-slide { height: 62vh; min-height: 380px; }
  .hero-arrow { display: none; }
  .float-bar { right: 10px; bottom: 70px; }
  .quote { padding: 24px 20px; }
}