/* ==========================================================================
   湖北黑铁科技有限公司 官网样式
   Heitie Technology · Industrial Conveying & Automation
   ========================================================================== */

:root {
  --c-dark: #0b1420;
  --c-dark-2: #101f2f;
  --c-dark-3: #16283c;
  --c-ink: #16212e;
  --c-text: #46576a;
  --c-muted: #7b8b9b;
  --c-line: #e5eaef;
  --c-bg: #f4f7fa;
  --c-bg-2: #eef2f6;
  --c-accent: #ff6a1a;
  --c-accent-d: #e5580b;
  --c-accent-soft: rgba(255, 106, 26, .1);
  --c-white: #ffffff;
  --shadow-sm: 0 2px 10px rgba(14, 30, 48, .06);
  --shadow-md: 0 12px 30px rgba(14, 30, 48, .1);
  --shadow-lg: 0 24px 60px rgba(14, 30, 48, .16);
  --radius: 12px;
  --radius-lg: 18px;
  --container: 1200px;
  --header-h: 76px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-text);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; border: 0; }
a { color: inherit; text-decoration: none; transition: color .25s var(--ease); }
a:hover { color: var(--c-accent); }
h1, h2, h3, h4, h5 { margin: 0; color: var(--c-ink); font-weight: 700; line-height: 1.35; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; font-size: 15px; }
::selection { background: var(--c-accent); color: #fff; }

.container { width: min(var(--container), 100% - 48px); margin-inline: auto; }

/* ---------- 滚动动画 ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }

/* ==========================================================================
   顶部信息条 + 导航
   ========================================================================== */
.topbar {
  background: var(--c-dark);
  color: #a9b8c7;
  font-size: 13px;
  line-height: 34px;
  height: 34px;
}
.topbar .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.topbar-left { display: flex; align-items: center; gap: 8px; white-space: nowrap; overflow: hidden; }
.topbar-left svg { width: 14px; height: 14px; flex: none; color: var(--c-accent); }
.topbar-right { display: flex; align-items: center; gap: 22px; white-space: nowrap; }
.topbar-right a { display: inline-flex; align-items: center; gap: 6px; }
.topbar-right svg { width: 13px; height: 13px; color: var(--c-accent); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(255, 255, 255, .97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--c-line);
  transition: box-shadow .3s var(--ease);
}
.site-header.scrolled { box-shadow: 0 6px 24px rgba(14, 30, 48, .09); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: var(--header-h);
}

/* logo */
.logo { display: inline-flex; align-items: center; gap: 12px; flex: none; }
.logo-mark { width: 44px; height: 44px; flex: none; display: block; border-radius: 10px; object-fit: cover; }
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-text strong {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 1.4px;
  color: var(--c-ink);
}
.logo-text span {
  font-size: 9.5px;
  letter-spacing: 1.5px;
  color: var(--c-muted);
  font-weight: 500;
  text-transform: uppercase;
  margin-top: 3px;
}

/* 主导航 */
.nav { display: flex; align-items: center; gap: 2px; height: 100%; }
.nav-item { position: relative; height: 100%; display: flex; align-items: center; }
.nav-item > a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0 14px;
  height: 100%;
  font-size: 15.5px;
  font-weight: 500;
  color: var(--c-ink);
  position: relative;
  white-space: nowrap;
}
.nav-item > a::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 18px;
  height: 2px;
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease);
}
.nav-item:hover > a, .nav-item.active > a { color: var(--c-accent); }
.nav-item:hover > a::after, .nav-item.active > a::after { transform: scaleX(1); }
.nav-item .caret { width: 10px; height: 10px; transition: transform .25s var(--ease); }
.nav-item:hover .caret { transform: rotate(180deg); }

.nav-drop {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translate(-50%, 8px);
  min-width: 208px;
  background: #fff;
  border-radius: 10px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--c-line);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transition: all .25s var(--ease);
  z-index: 20;
}
.nav-item:hover .nav-drop, .nav-item:focus-within .nav-drop { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.nav-drop a {
  display: block;
  padding: 9px 14px;
  font-size: 14px;
  color: var(--c-text);
  border-radius: 6px;
  white-space: nowrap;
}
.nav-drop a:hover { background: var(--c-bg); color: var(--c-accent); }

.header-cta { display: flex; align-items: center; gap: 10px; flex: none; }
.header-tel { display: flex; flex-direction: column; line-height: 1.2; text-align: right; }
.header-tel span { font-size: 11.5px; color: var(--c-muted); letter-spacing: .5px; }
.header-tel strong { font-size: 19px; color: var(--c-ink); letter-spacing: .4px; }
.header-tel strong em { font-style: normal; color: var(--c-accent); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 26px;
  height: 46px;
  border-radius: 4px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: all .28s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--c-accent); color: #fff; box-shadow: 0 8px 20px rgba(255, 106, 26, .28); }
.btn-primary:hover { background: var(--c-accent-d); color: #fff; transform: translateY(-2px); box-shadow: 0 12px 26px rgba(255, 106, 26, .36); }
.btn-dark { background: var(--c-dark); color: #fff; }
.btn-dark:hover { background: var(--c-dark-3); color: #fff; transform: translateY(-2px); }
.btn-ghost { border-color: rgba(255, 255, 255, .5); color: #fff; background: rgba(255, 255, 255, .06); }
.btn-ghost:hover { background: #fff; color: var(--c-ink); border-color: #fff; }
.btn-line { border-color: var(--c-line); color: var(--c-ink); background: #fff; }
.btn-line:hover { border-color: var(--c-accent); color: var(--c-accent); }
.btn-sm { height: 40px; padding: 0 20px; font-size: 14px; }

/* 汉堡按钮 */
.burger {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--c-line);
  background: #fff;
  border-radius: 8px;
  padding: 0;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.burger span { display: block; width: 20px; height: 2px; background: var(--c-ink); transition: all .3s var(--ease); }
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   首页 Hero 轮播
   ========================================================================== */
.hero {
  position: relative;
  height: min(700px, calc(100vh - 110px));
  min-height: 520px;
  overflow: hidden;
  background: var(--c-dark);
}
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: scale(1.06);
  transition: opacity 1.1s var(--ease), transform 6s linear;
  background-size: cover;
  background-position: center;
}
.hero-slide.active { opacity: 1; transform: scale(1); }
.hero-slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(8, 16, 26, .94) 0%, rgba(8, 16, 26, .72) 38%, rgba(8, 16, 26, .28) 68%, rgba(8, 16, 26, .12) 100%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-bottom: 40px;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--c-accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 22px;
}
.hero-eyebrow::before { content: ""; width: 42px; height: 2px; background: var(--c-accent); }
.hero h1 {
  color: #fff;
  font-size: clamp(32px, 4.2vw, 54px);
  line-height: 1.24;
  letter-spacing: 1px;
  max-width: 780px;
  margin-bottom: 22px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, .25);
}
.hero h1 em { font-style: normal; color: var(--c-accent); }
.hero-sub {
  color: rgba(255, 255, 255, .82);
  font-size: clamp(15px, 1.4vw, 17px);
  max-width: 620px;
  margin-bottom: 38px;
  line-height: 1.9;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-dots {
  position: absolute;
  left: 50%;
  bottom: 108px;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  gap: 10px;
}
.hero-dots button {
  width: 34px;
  height: 4px;
  border: 0;
  padding: 0;
  background: rgba(255, 255, 255, .32);
  border-radius: 2px;
  transition: background .3s var(--ease), width .3s var(--ease);
}
.hero-dots button.active { background: var(--c-accent); width: 46px; }

/* Hero 下方快捷产品条 */
.hero-quick {
  position: relative;
  z-index: 4;
  margin-top: -58px;
  margin-bottom: 0;
}
.hero-quick ul {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.hero-quick li + li { border-left: 1px solid var(--c-line); }
.hero-quick a {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 24px 22px;
  height: 100%;
  transition: background .3s var(--ease);
}
.hero-quick a:hover { background: var(--c-bg); }
.hero-quick .q-icon {
  width: 52px;
  height: 52px;
  flex: none;
  border-radius: 10px;
  overflow: hidden;
  background: var(--c-accent-soft);
  display: block;
}
.hero-quick .q-icon img { width: 100%; height: 100%; object-fit: cover; }
.hero-quick strong { display: block; font-size: 15.5px; color: var(--c-ink); margin-bottom: 2px; }
.hero-quick span { font-size: 12.5px; color: var(--c-muted); letter-spacing: .5px; }

/* ==========================================================================
   通用区块
   ========================================================================== */
.section { padding: 84px 0; }
.section.tight { padding: 64px 0; }
.section.bg { background: var(--c-bg); }
.section.dark { background: var(--c-dark); color: #b9c6d3; }
.section.dark h2, .section.dark h3 { color: #fff; }

.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 44px; }
.sec-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 2.5px;
  color: var(--c-accent);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.sec-head .eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--c-accent); }
.sec-head h2 { font-size: clamp(24px, 2.6vw, 34px); letter-spacing: .5px; }
.sec-head h2 em { font-style: normal; color: var(--c-accent); }
.sec-head p { margin: 10px 0 0; color: var(--c-muted); font-size: 15px; max-width: 620px; }
.sec-head .more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--c-muted);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  white-space: nowrap;
  flex: none;
}
.sec-head .more:hover { color: var(--c-accent); border-color: var(--c-accent); }
.sec-head .more svg { width: 15px; height: 15px; }
.sec-head.center { flex-direction: column; align-items: center; text-align: center; }
.sec-head.center .eyebrow { justify-content: center; }
.sec-head.center p { margin-inline: auto; }

/* 数字统计 */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.stat { padding: 8px 26px; border-left: 1px solid rgba(255, 255, 255, .12); }
.stat:first-child { border-left: 0; }
.stat b {
  display: block;
  font-size: clamp(34px, 4vw, 50px);
  font-weight: 800;
  line-height: 1.1;
  color: #fff;
  letter-spacing: 1px;
}
.stat b em { font-style: normal; font-size: .45em; color: var(--c-accent); margin-left: 4px; font-weight: 700; }
.stat span { display: block; margin-top: 10px; font-size: 14px; color: #94a5b6; letter-spacing: .5px; }

/* 核心产品大卡 */
.feature-products { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.fp-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--c-dark);
  box-shadow: var(--shadow-sm);
}
.fp-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.fp-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8, 16, 26, .93) 0%, rgba(8, 16, 26, .5) 42%, rgba(8, 16, 26, .06) 78%);
  transition: opacity .4s var(--ease);
}
.fp-card:hover img { transform: scale(1.07); }
.fp-card .fp-body { position: absolute; inset: auto 0 0 0; z-index: 2; padding: 26px 24px; }
.fp-card .fp-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 1.6px;
  color: var(--c-accent);
  border: 1px solid rgba(255, 106, 26, .5);
  border-radius: 3px;
  padding: 2px 8px;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.fp-card h3 { color: #fff; font-size: 20px; margin-bottom: 8px; }
.fp-card p { color: rgba(255, 255, 255, .62); font-size: 13px; margin: 0; line-height: 1.7; }
.fp-card .fp-arrow {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .12);
  color: #fff;
  display: grid;
  place-items: center;
  z-index: 2;
  transition: all .3s var(--ease);
  backdrop-filter: blur(4px);
}
.fp-card .fp-arrow svg { width: 16px; height: 16px; }
.fp-card:hover .fp-arrow { background: var(--c-accent); transform: rotate(-45deg); }

/* 产品体系网格 */
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.prod-item {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: all .35s var(--ease);
  position: relative;
  overflow: hidden;
}
.prod-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 0;
  background: var(--c-accent);
  transition: height .35s var(--ease);
}
.prod-item:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: transparent; }
.prod-item:hover::before { height: 100%; }
.prod-item .p-thumb {
  width: 60px;
  height: 60px;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 18px;
  background: var(--c-bg);
  display: block;
}
.prod-item .p-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.prod-item:hover .p-thumb img { transform: scale(1.1); }
.prod-item h3 { font-size: 17px; margin-bottom: 8px; }
.prod-item p { font-size: 13.5px; color: var(--c-muted); margin: 0; line-height: 1.75; }
.prod-item .p-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-ink);
}
.prod-item .p-more svg { width: 14px; height: 14px; transition: transform .3s var(--ease); }
.prod-item:hover .p-more { color: var(--c-accent); }
.prod-item:hover .p-more svg { transform: translateX(4px); }

/* 解决方案 */
.sol-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.sol-card {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 34px 30px;
  transition: all .35s var(--ease);
  position: relative;
  overflow: hidden;
}
.sol-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: transparent; }
.sol-card .s-no {
  position: absolute;
  right: 22px;
  top: 18px;
  font-size: 46px;
  font-weight: 800;
  color: var(--c-bg-2);
  line-height: 1;
  letter-spacing: -1px;
  transition: color .35s var(--ease);
}
.sol-card:hover .s-no { color: var(--c-accent-soft); }
.sol-card .s-icon {
  width: 54px;
  height: 54px;
  border-radius: 12px;
  background: var(--c-dark);
  color: var(--c-accent);
  display: grid;
  place-items: center;
  margin-bottom: 22px;
  transition: background .35s var(--ease);
}
.sol-card .s-icon svg { width: 26px; height: 26px; }
.sol-card:hover .s-icon { background: var(--c-accent); color: #fff; }
.sol-card h3 { font-size: 19px; margin-bottom: 10px; }
.sol-card p { font-size: 13.8px; color: var(--c-muted); margin-bottom: 16px; }
.sol-card ul li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  color: var(--c-text);
  line-height: 2;
}
.sol-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-accent);
  opacity: .75;
}

/* 案例 */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--c-dark-2);
  display: block;
}
.case-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.case-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8, 16, 26, .92) 0%, rgba(8, 16, 26, .28) 52%, rgba(8, 16, 26, 0) 78%);
}
.case-card:hover img { transform: scale(1.06); }
.case-card .c-body { position: absolute; inset: auto 0 0 0; z-index: 2; padding: 24px; }
.case-card .c-tag {
  display: inline-block;
  font-size: 11.5px;
  background: var(--c-accent);
  color: #fff;
  padding: 3px 10px;
  border-radius: 3px;
  margin-bottom: 10px;
}
.case-card h3 { color: #fff; font-size: 17.5px; line-height: 1.5; }
.case-card .c-meta { color: rgba(255, 255, 255, .6); font-size: 12.5px; margin-top: 6px; }

/* 关于我们（首页） */
.about-split { display: grid; grid-template-columns: 1.05fr 1fr; gap: 64px; align-items: center; }
.about-media { position: relative; }
.about-media .m-main { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); aspect-ratio: 4 / 3; }
.about-media .m-main img { width: 100%; height: 100%; object-fit: cover; }
.about-media .m-sub {
  position: absolute;
  right: -24px;
  bottom: -34px;
  width: 46%;
  border-radius: var(--radius);
  overflow: hidden;
  border: 6px solid #fff;
  box-shadow: var(--shadow-md);
  aspect-ratio: 4 / 3;
}
.about-media .m-sub img { width: 100%; height: 100%; object-fit: cover; }
.about-media .m-badge {
  position: absolute;
  left: -20px;
  top: 28px;
  background: var(--c-accent);
  color: #fff;
  border-radius: 10px;
  padding: 16px 20px;
  box-shadow: 0 14px 30px rgba(255, 106, 26, .35);
  text-align: center;
  line-height: 1.25;
}
.about-media .m-badge strong { display: block; font-size: 30px; font-weight: 800; }
.about-media .m-badge span { font-size: 12px; letter-spacing: 1px; }
.about-copy .sec-head { margin-bottom: 22px; display: block; }
.about-copy p { font-size: 15px; line-height: 1.95; color: var(--c-text); }
.about-points { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 22px; margin: 26px 0 32px; }
.about-points li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--c-ink); font-weight: 500; }
.about-points li svg { width: 18px; height: 18px; color: var(--c-accent); flex: none; margin-top: 5px; }

/* 品牌/客户 */
.brand-strip { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; align-items: center; }
.brand-item {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: 10px;
  height: 92px;
  display: grid;
  place-items: center;
  padding: 16px 20px;
  filter: grayscale(100%);
  opacity: .78;
  transition: all .3s var(--ease);
}
.brand-item:hover { filter: none; opacity: 1; box-shadow: var(--shadow-sm); border-color: transparent; }
.brand-item img { max-height: 48px; max-width: 100%; object-fit: contain; }
.brand-item.catia img { max-height: 40px; }

.client-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; justify-content: center; }
.client-tags span {
  font-size: 13.5px;
  color: var(--c-text);
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: 40px;
  padding: 6px 18px;
  transition: all .25s var(--ease);
}
.client-tags span:hover { border-color: var(--c-accent); color: var(--c-accent); }

/* CTA 条 */
.cta-band { position: relative; overflow: hidden; background: var(--c-dark-2); }
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("../img/banner-service.jpg") center/cover no-repeat;
  opacity: .18;
  filter: grayscale(40%);
}
.cta-band::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(11, 20, 32, .96) 0%, rgba(11, 20, 32, .78) 60%, rgba(11, 20, 32, .5) 100%);
}
.cta-inner { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 40px; padding: 64px 0; }
.cta-inner h2 { color: #fff; font-size: clamp(24px, 2.6vw, 32px); margin-bottom: 12px; }
.cta-inner p { color: rgba(255, 255, 255, .7); margin: 0; font-size: 15px; }
.cta-inner .cta-actions { display: flex; gap: 14px; flex-wrap: wrap; flex: none; }

/* ==========================================================================
   内页 Banner / 面包屑
   ========================================================================== */
.page-banner {
  position: relative;
  height: 340px;
  background: var(--c-dark-2);
  overflow: hidden;
  display: flex;
  align-items: center;
}
.page-banner .pb-bg { position: absolute; inset: 0; background-size: cover; background-position: center; transform: scale(1.03); }
.page-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(8, 16, 26, .9) 0%, rgba(8, 16, 26, .68) 55%, rgba(8, 16, 26, .38) 100%);
}
.page-banner .pb-inner { position: relative; z-index: 2; }
.page-banner .pb-en {
  font-size: 12.5px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--c-accent);
  font-weight: 700;
  margin-bottom: 14px;
}
.page-banner h1 { color: #fff; font-size: clamp(28px, 3.4vw, 42px); letter-spacing: 2px; }
.page-banner .pb-sub { color: rgba(255, 255, 255, .62); margin: 14px 0 0; font-size: 15px; max-width: 560px; }

.crumb { background: #fff; border-bottom: 1px solid var(--c-line); }
.crumb .container { display: flex; align-items: center; gap: 10px; height: 54px; font-size: 13.5px; color: var(--c-muted); flex-wrap: wrap; }
.crumb a { color: var(--c-muted); }
.crumb a:hover { color: var(--c-accent); }
.crumb .sep { color: #c3ccd6; }
.crumb .cur { color: var(--c-ink); font-weight: 500; }

/* 内页两栏布局 */
.layout { display: grid; grid-template-columns: 252px 1fr; gap: 44px; align-items: start; }
.layout.single { grid-template-columns: 1fr; }
.side { position: sticky; top: calc(var(--header-h) + 24px); }
.side-title {
  background: var(--c-dark);
  color: #fff;
  padding: 22px 24px;
  border-radius: var(--radius) var(--radius) 0 0;
}
.side-title strong { display: block; font-size: 19px; letter-spacing: 1px; }
.side-title span { font-size: 11px; letter-spacing: 2.4px; color: rgba(255, 255, 255, .45); text-transform: uppercase; }
.side-nav { background: #fff; border: 1px solid var(--c-line); border-top: 0; border-radius: 0 0 var(--radius) var(--radius); overflow: hidden; }
.side-nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 15px 24px;
  font-size: 14.5px;
  color: var(--c-ink);
  border-bottom: 1px solid #eff3f6;
  transition: all .25s var(--ease);
}
.side-nav a:last-child { border-bottom: 0; }
.side-nav a svg { width: 14px; height: 14px; color: #c3ccd6; transition: all .25s var(--ease); }
.side-nav a:hover { background: var(--c-bg); color: var(--c-accent); }
.side-nav a:hover svg { color: var(--c-accent); transform: translateX(3px); }
.side-nav a.active { background: var(--c-accent); color: #fff; font-weight: 600; }
.side-nav a.active svg { color: rgba(255, 255, 255, .7); }
.side-contact {
  margin-top: 20px;
  border-radius: var(--radius);
  background: linear-gradient(150deg, var(--c-dark-2), var(--c-dark));
  color: #fff;
  padding: 26px 24px;
  position: relative;
  overflow: hidden;
}
.side-contact::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -50px;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: rgba(255, 106, 26, .16);
}
.side-contact h4 { color: #fff; font-size: 16px; margin-bottom: 14px; }
.side-contact p { font-size: 13px; color: rgba(255, 255, 255, .62); margin: 0 0 6px; }
.side-contact .sc-tel { display: block; font-size: 22px; font-weight: 800; color: #fff; letter-spacing: .5px; margin: 4px 0 14px; }
.side-contact .sc-tel:hover { color: var(--c-accent); }

.main-content { min-width: 0; }
.content-block + .content-block { margin-top: 64px; }

/* 内容头部 */
.block-head { margin-bottom: 28px; }
.block-head .eyebrow { font-size: 12px; letter-spacing: 2.4px; color: var(--c-accent); font-weight: 700; text-transform: uppercase; display: block; margin-bottom: 8px; }
.block-head h2 { font-size: clamp(22px, 2.2vw, 28px); letter-spacing: .5px; }
.block-head h2 em { font-style: normal; color: var(--c-accent); }
.block-head .line { width: 46px; height: 3px; background: var(--c-accent); margin-top: 14px; }
.block-head p { margin: 14px 0 0; color: var(--c-muted); }

/* 正文 */
.prose p { color: var(--c-text); line-height: 1.95; margin-bottom: 1.1em; }
.prose p:last-child { margin-bottom: 0; }
.prose strong { color: var(--c-ink); }
.prose h3 { font-size: 19px; margin: 34px 0 14px; padding-left: 14px; border-left: 3px solid var(--c-accent); }
.prose h4 { font-size: 16.5px; margin: 24px 0 10px; }
.prose ul.dots li { position: relative; padding-left: 20px; line-height: 2; }
.prose ul.dots li::before { content: ""; position: absolute; left: 0; top: 12px; width: 6px; height: 6px; border-radius: 50%; background: var(--c-accent); }

.panel { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 32px; }
.panel.bg { background: var(--c-bg); border-color: transparent; }
.panel.dark { background: var(--c-dark); color: #b9c6d3; border-color: transparent; }
.panel.dark h3, .panel.dark h4 { color: #fff; }
.panel + .panel { margin-top: 22px; }

/* 公司概况表格 */
.info-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.info-table th, .info-table td { padding: 13px 18px; border: 1px solid var(--c-line); text-align: left; vertical-align: top; }
.info-table th { background: var(--c-bg); color: var(--c-ink); font-weight: 600; width: 160px; white-space: nowrap; }
.info-table tr:hover td { background: #fbfcfd; }

/* 企业文化卡 */
.culture-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.culture-card {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 30px 28px;
  position: relative;
  overflow: hidden;
  transition: all .35s var(--ease);
}
.culture-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: transparent; }
.culture-card .cc-no {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--c-accent);
  display: block;
  margin-bottom: 12px;
}
.culture-card h3 { font-size: 19px; margin-bottom: 10px; }
.culture-card p { margin: 0; font-size: 14px; color: var(--c-muted); line-height: 1.9; }
.culture-card::after {
  content: "";
  position: absolute;
  right: -30px;
  top: -30px;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: var(--c-bg);
  transition: background .35s var(--ease);
}
.culture-card:hover::after { background: var(--c-accent-soft); }

/* 组织架构 */
.org { text-align: center; overflow-x: auto; padding: 10px 0; }
.org-top {
  display: inline-block;
  background: var(--c-dark);
  color: #fff;
  padding: 14px 44px;
  border-radius: 8px;
  font-weight: 700;
  letter-spacing: 2px;
}
.org-line { width: 2px; height: 26px; background: var(--c-line); margin: 0 auto; }
.org-level-title {
  display: inline-block;
  background: var(--c-accent);
  color: #fff;
  padding: 10px 34px;
  border-radius: 8px;
  font-weight: 600;
  letter-spacing: 1px;
}
.org-groups { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 26px; text-align: left; }
.org-group { border: 1px solid var(--c-line); border-radius: 10px; overflow: hidden; background: #fff; }
.org-group > strong { display: block; background: var(--c-bg); padding: 12px 18px; font-size: 14.5px; color: var(--c-ink); border-bottom: 1px solid var(--c-line); }
.org-group ul { padding: 12px 18px; display: flex; flex-wrap: wrap; gap: 8px; }
.org-group ul li { font-size: 13px; color: var(--c-text); background: var(--c-bg); border-radius: 4px; padding: 4px 10px; }

/* 团队/能力 */
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.cap-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 28px 26px; transition: all .3s var(--ease); }
.cap-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cap-card:hover { border-color: transparent; box-shadow: var(--shadow-md); transform: translateY(-4px); }
.cap-card .cap-icon { display: block; width: 44px; height: 44px; color: var(--c-accent); margin-bottom: 16px; }
.cap-card .cap-icon svg { width: 100%; height: 100%; }
.cap-card h3 { font-size: 16.5px; margin-bottom: 8px; }
.cap-card p { font-size: 13.5px; color: var(--c-muted); margin: 0; line-height: 1.8; }

/* 荣誉资质 */
.honor-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.honor-item {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .3s var(--ease);
}
.honor-item:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.honor-item .hi-img { aspect-ratio: 3 / 4; background: var(--c-bg); display: grid; place-items: center; overflow: hidden; }
.honor-item .hi-img img { width: 100%; height: 100%; object-fit: contain; padding: 10px; }
.honor-item .hi-body { padding: 18px 20px; border-top: 1px solid var(--c-line); }
.honor-item h3 { font-size: 15px; margin-bottom: 4px; }
.honor-item span { font-size: 12.5px; color: var(--c-muted); }
.honor-note { margin-top: 26px; font-size: 13px; color: var(--c-muted); }
.honor-showcase { display: grid; grid-template-columns: 320px 1fr; gap: 30px; align-items: start; }
.license-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 14px; }
.license-card img { width: 100%; border-radius: 6px; display: block; }
.license-card span { display: block; text-align: center; font-size: 12.5px; color: var(--c-muted); padding: 12px 0 2px; }
.qual-list { display: grid; gap: 14px; }
.qual-item { display: flex; gap: 16px; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 22px 24px; transition: all .3s var(--ease); }
.qual-item:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: transparent; }
.qual-item .qi-icon { width: 46px; height: 46px; flex: none; border-radius: 10px; background: var(--c-accent-soft); color: var(--c-accent); display: grid; place-items: center; }
.qual-item .qi-icon svg { width: 22px; height: 22px; }
.qual-item h3 { font-size: 16px; margin-bottom: 5px; }
.qual-item p { margin: 0; font-size: 13.5px; color: var(--c-muted); line-height: 1.8; }
.quote-panel { display: flex; gap: 22px; align-items: center; flex-wrap: wrap; }
.quote-mark { font-family: Georgia, "Times New Roman", serif; font-size: 68px; line-height: .8; color: var(--c-accent); }
.honor-item .hi-placeholder {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  color: #b9c6d3;
  gap: 10px;
  text-align: center;
  font-size: 13px;
  padding: 20px;
}
.honor-item .hi-placeholder svg { width: 46px; height: 46px; color: #c9d3dc; margin: 0 auto 12px; }

/* 产品列表（产品中心） */
.prod-cats { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; }
.prod-cats a {
  font-size: 14px;
  padding: 9px 20px;
  border: 1px solid var(--c-line);
  border-radius: 40px;
  background: #fff;
  color: var(--c-text);
  transition: all .25s var(--ease);
}
.prod-cats a:hover, .prod-cats a.active { background: var(--c-accent); border-color: var(--c-accent); color: #fff; }

.prod-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.prod-card {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .35s var(--ease);
  display: flex;
  flex-direction: column;
}
.prod-card:hover { box-shadow: var(--shadow-md); transform: translateY(-5px); border-color: transparent; }
.prod-card .pc-img { aspect-ratio: 16 / 10; overflow: hidden; position: relative; }
.prod-card .pc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.prod-card:hover .pc-img img { transform: scale(1.06); }
.prod-card .pc-img .pc-badge {
  position: absolute;
  left: 16px;
  top: 16px;
  background: var(--c-accent);
  color: #fff;
  font-size: 11.5px;
  letter-spacing: 1px;
  padding: 3px 10px;
  border-radius: 3px;
}
.prod-card .pc-body { padding: 24px 26px 26px; flex: 1; display: flex; flex-direction: column; }
.prod-card h3 { font-size: 19px; margin-bottom: 8px; }
.prod-card .pc-sub { font-size: 12.5px; color: var(--c-accent); letter-spacing: 1px; margin-bottom: 10px; }
.prod-card p { font-size: 13.5px; color: var(--c-muted); margin: 0 0 18px; line-height: 1.8; }
.prod-card .pc-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.prod-card .pc-tags span { font-size: 12px; color: var(--c-text); background: var(--c-bg); border-radius: 4px; padding: 3px 9px; }
.prod-card .pc-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--c-ink);
  align-self: flex-start;
}
.prod-card .pc-link svg { width: 15px; height: 15px; }
.prod-card:hover .pc-link { color: var(--c-accent); }

/* 产品详情 */
.detail-wrap { padding-top: 4px; }
.detail-grid { display: grid; grid-template-columns: 1fr 300px; gap: 40px; align-items: start; }
.detail-body .prose { font-size: 14.8px; }
.detail-aside { position: sticky; top: calc(var(--header-h) + 24px); }
.aside-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 26px 24px; }
.aside-card + .aside-card { margin-top: 18px; }
.aside-card h4 { font-size: 15.5px; margin-bottom: 14px; }
.aside-links li { border-bottom: 1px dashed var(--c-line); }
.aside-links li:last-child { border-bottom: 0; }
.aside-links a { display: flex; align-items: center; justify-content: space-between; padding: 11px 0; font-size: 13.5px; color: var(--c-text); }
.aside-links a:hover { color: var(--c-accent); }
.aside-links svg { width: 13px; height: 13px; color: #c3ccd6; }
.aside-quote { background: linear-gradient(150deg, var(--c-dark-2), var(--c-dark)); color: #fff; border: 0; }
.aside-quote h4 { color: #fff; }
.aside-quote p { color: rgba(255, 255, 255, .66); font-size: 13px; margin-bottom: 18px; }
.aside-quote .tel { font-size: 22px; font-weight: 800; color: #fff; letter-spacing: .5px; display: block; margin-bottom: 16px; }

.spec-table { width: 100%; border-collapse: collapse; font-size: 14px; background: #fff; }
.spec-table caption { text-align: left; font-size: 13px; color: var(--c-muted); padding-bottom: 10px; }
.spec-table th, .spec-table td { border: 1px solid var(--c-line); padding: 12px 16px; text-align: left; }
.spec-table thead th { background: var(--c-dark); color: #fff; font-weight: 600; }
.spec-table tbody th { background: var(--c-bg); color: var(--c-ink); font-weight: 600; width: 34%; }
.spec-table tbody tr:nth-child(even) td { background: #fbfcfd; }

/* 图片画廊 */
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.gallery figure { margin: 0; border-radius: 10px; overflow: hidden; position: relative; aspect-ratio: 3 / 2; background: var(--c-bg); }
.gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
.gallery figure:hover img { transform: scale(1.07); }
.gallery figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 26px 16px 12px;
  color: #fff;
  font-size: 13px;
  background: linear-gradient(to top, rgba(8, 16, 26, .82), transparent);
}

/* 应用案例（详情页） */
.mini-cases { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.mini-case { position: relative; border-radius: 10px; overflow: hidden; aspect-ratio: 16 / 10; display: block; }
.mini-case img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
.mini-case:hover img { transform: scale(1.06); }
.mini-case span {
  position: absolute;
  inset: auto 0 0 0;
  padding: 30px 16px 14px;
  color: #fff;
  font-size: 13.5px;
  background: linear-gradient(to top, rgba(8, 16, 26, .85), transparent);
}

/* 解决方案页面 */
.sol-list { display: grid; gap: 30px; }
.sol-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all .35s var(--ease);
}
.sol-row:hover { box-shadow: var(--shadow-md); border-color: transparent; }
.sol-row:nth-child(even) .sol-row-media { order: 2; }
.sol-row-media { position: relative; min-height: 300px; }
.sol-row-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.sol-row-body { padding: 38px 40px; }
.sol-row-body .s-no { font-size: 13px; font-weight: 700; letter-spacing: 2px; color: var(--c-accent); display: block; margin-bottom: 10px; }
.sol-row-body h3 { font-size: 21px; margin-bottom: 12px; }
.sol-row-body p { font-size: 14px; color: var(--c-text); margin-bottom: 16px; }
.sol-row-body ul { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 16px; margin-bottom: 20px; }
.sol-row-body ul li { position: relative; padding-left: 16px; font-size: 13.5px; color: var(--c-muted); }
.sol-row-body ul li::before { content: ""; position: absolute; left: 0; top: 9px; width: 5px; height: 5px; border-radius: 50%; background: var(--c-accent); }

/* 业绩表 */
.table-wrap { overflow-x: auto; border: 1px solid var(--c-line); border-radius: var(--radius); background: #fff; -webkit-overflow-scrolling: touch; }
.data-table { width: 100%; border-collapse: collapse; font-size: 13.5px; min-width: 860px; }
.data-table thead th {
  background: var(--c-dark);
  color: #fff;
  font-weight: 600;
  text-align: left;
  padding: 15px 16px;
  white-space: nowrap;
  font-size: 13.5px;
  letter-spacing: .5px;
}
.data-table tbody td { padding: 13px 16px; border-bottom: 1px solid #eef2f6; vertical-align: top; line-height: 1.75; }
.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table tbody tr:hover td { background: #fafcfd; }
.data-table .col-no { width: 56px; color: var(--c-muted); font-variant-numeric: tabular-nums; }
.data-table .col-name { font-weight: 600; color: var(--c-ink); min-width: 190px; }
.data-table .col-type { min-width: 150px; }
.data-table .col-user { min-width: 140px; }
.data-table .col-date { white-space: nowrap; color: var(--c-muted); font-variant-numeric: tabular-nums; }
.table-note { font-size: 13px; color: var(--c-muted); margin-top: 14px; }

/* 筛选 */
.filter-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
.filter-row button {
  border: 1px solid var(--c-line);
  background: #fff;
  color: var(--c-text);
  font-size: 13.5px;
  padding: 8px 18px;
  border-radius: 40px;
  transition: all .25s var(--ease);
}
.filter-row button:hover { border-color: var(--c-accent); color: var(--c-accent); }
.filter-row button.active { background: var(--c-accent); border-color: var(--c-accent); color: #fff; }

/* 新闻 */
.news-list { display: grid; gap: 22px; }
.news-item { display: grid; grid-template-columns: 300px 1fr; gap: 28px; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); overflow: hidden; transition: all .35s var(--ease); }
.news-item:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: transparent; }
.news-item .n-img { aspect-ratio: 16 / 11; overflow: hidden; }
.news-item .n-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
.news-item:hover .n-img img { transform: scale(1.05); }
.news-item .n-body { padding: 26px 28px 26px 0; display: flex; flex-direction: column; }
.news-item .n-meta { display: flex; align-items: center; gap: 14px; font-size: 12.5px; color: var(--c-muted); margin-bottom: 10px; }
.news-item .n-meta .n-tag { background: var(--c-accent-soft); color: var(--c-accent); font-size: 12px; padding: 2px 10px; border-radius: 3px; }
.news-item h3 { font-size: 18.5px; margin-bottom: 10px; }
.news-item p { font-size: 13.8px; color: var(--c-muted); margin: 0; line-height: 1.85; }
.news-item .n-more { margin-top: auto; padding-top: 16px; font-size: 13px; font-weight: 600; color: var(--c-ink); display: inline-flex; align-items: center; gap: 6px; }
.news-item .n-more svg { width: 14px; height: 14px; }
.news-item:hover .n-more { color: var(--c-accent); }

/* 服务支持 */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.step {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 30px 24px;
  position: relative;
  transition: all .3s var(--ease);
}
.step:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: transparent; }
.step::before {
  counter-increment: step;
  content: "0" counter(step);
  position: absolute;
  right: 20px;
  top: 16px;
  font-size: 40px;
  font-weight: 800;
  color: var(--c-bg-2);
  line-height: 1;
  transition: color .3s var(--ease);
}
.step:hover::before { color: var(--c-accent-soft); }
.step .st-icon { display: block; width: 46px; height: 46px; color: var(--c-accent); margin-bottom: 18px; }
.step .st-icon svg { width: 100%; height: 100%; }
.step h3 { font-size: 16.5px; margin-bottom: 8px; }
.step p { margin: 0; font-size: 13.5px; color: var(--c-muted); line-height: 1.8; }

.flow { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; counter-reset: flow; }
.flow-item { position: relative; background: #fff; border: 1px solid var(--c-line); border-radius: 10px; padding: 24px 16px; text-align: center; transition: all .3s var(--ease); }
.flow-item:hover { border-color: var(--c-accent); transform: translateY(-3px); }
.flow-item::after {
  content: "";
  position: absolute;
  right: -9px;
  top: 50%;
  width: 6px;
  height: 6px;
  border-top: 2px solid #cbd5df;
  border-right: 2px solid #cbd5df;
  transform: translateY(-50%) rotate(45deg);
}
.flow-item:last-child::after { display: none; }
.flow-item .fi-no { font-size: 12px; font-weight: 700; color: var(--c-accent); letter-spacing: 1.5px; }
.flow-item strong { display: block; font-size: 15px; color: var(--c-ink); margin: 6px 0 4px; }
.flow-item span { font-size: 12px; color: var(--c-muted); }

/* FAQ */
.faq { border-top: 1px solid var(--c-line); }
.faq-item { border-bottom: 1px solid var(--c-line); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: none;
  border: 0;
  text-align: left;
  padding: 20px 4px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--c-ink);
}
.faq-q .fq-icon { width: 26px; height: 26px; border-radius: 50%; border: 1px solid var(--c-line); position: relative; flex: none; transition: all .3s var(--ease); }
.faq-q .fq-icon::before, .faq-q .fq-icon::after { content: ""; position: absolute; left: 50%; top: 50%; background: var(--c-ink); transform: translate(-50%, -50%); transition: all .3s var(--ease); }
.faq-q .fq-icon::before { width: 11px; height: 1.5px; }
.faq-q .fq-icon::after { width: 1.5px; height: 11px; }
.faq-item.open .fq-icon { background: var(--c-accent); border-color: var(--c-accent); }
.faq-item.open .fq-icon::before, .faq-item.open .fq-icon::after { background: #fff; }
.faq-item.open .fq-icon::after { transform: translate(-50%, -50%) scaleY(0); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .4s var(--ease); }
.faq-a p { padding: 0 4px 20px; margin: 0; font-size: 14px; color: var(--c-muted); line-height: 1.9; }

/* 联系页 */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.contact-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 30px 28px; transition: all .3s var(--ease); }
.contact-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: transparent; }
.contact-card .ct-icon { width: 48px; height: 48px; border-radius: 12px; background: var(--c-accent-soft); color: var(--c-accent); display: grid; place-items: center; margin-bottom: 18px; }
.contact-card .ct-icon svg { width: 22px; height: 22px; }
.contact-card h3 { font-size: 15px; color: var(--c-muted); font-weight: 500; margin-bottom: 8px; }
.contact-card .ct-main { font-size: 17px; font-weight: 700; color: var(--c-ink); line-height: 1.5; word-break: break-all; }
.contact-card .ct-main a:hover { color: var(--c-accent); }
.contact-card .ct-sub { font-size: 12.5px; color: var(--c-muted); margin-top: 6px; }

.contact-layout { display: grid; grid-template-columns: 1fr 380px; gap: 40px; align-items: start; }
.form-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 38px 36px; }
.form-card h3 { font-size: 21px; margin-bottom: 8px; }
.form-card > p { font-size: 13.5px; color: var(--c-muted); margin-bottom: 26px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { display: flex; flex-direction: column; gap: 7px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 13px; color: var(--c-ink); font-weight: 600; }
.form-field label em { font-style: normal; color: var(--c-accent); }
.form-field input, .form-field textarea, .form-field select {
  border: 1px solid var(--c-line);
  border-radius: 6px;
  padding: 12px 14px;
  font-size: 14px;
  color: var(--c-ink);
  background: #fbfcfd;
  transition: all .25s var(--ease);
  width: 100%;
}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus {
  outline: 0;
  border-color: var(--c-accent);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(255, 106, 26, .12);
}
.form-field textarea { min-height: 128px; resize: vertical; }
.form-actions { margin-top: 24px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.form-tip { font-size: 12.5px; color: var(--c-muted); }
.form-tip a { color: var(--c-accent); }

.map-box {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 420px;
  background: linear-gradient(135deg, #16283c, #0b1420);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .08);
}
.map-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 44px 44px;
  transform: perspective(600px) rotateX(28deg) scale(1.4);
  transform-origin: bottom;
  opacity: .9;
}
.map-box .map-inner { position: relative; z-index: 2; padding: 30px; }
.map-box .map-pin {
  width: 64px;
  height: 64px;
  margin: 0 auto 18px;
  border-radius: 50% 50% 50% 4px;
  background: var(--c-accent);
  transform: rotate(-45deg);
  display: grid;
  place-items: center;
  box-shadow: 0 16px 34px rgba(255, 106, 26, .42);
}
.map-box .map-pin svg { transform: rotate(45deg); width: 28px; height: 28px; color: #fff; }
.map-box h3 { color: #fff; font-size: 19px; margin-bottom: 8px; }
.map-box p { color: rgba(255, 255, 255, .66); font-size: 13.5px; margin: 0 0 22px; line-height: 1.8; }
.map-box .btn { margin: 0 auto; }

/* ==========================================================================
   页脚
   ========================================================================== */
.site-footer { background: var(--c-dark); color: #8fa0b2; font-size: 13.5px; }
.footer-main { display: grid; grid-template-columns: 1.5fr .9fr .9fr 1.1fr; gap: 44px; padding: 64px 0 48px; }
.footer-brand .logo-mark { box-shadow: 0 0 0 1px rgba(255, 255, 255, .12); }
.footer-brand .logo-text strong { color: #fff; }
.footer-brand .logo-text span { color: #7c8fa2; }
.footer-brand p { margin: 20px 0 22px; line-height: 1.9; color: #8fa0b2; max-width: 320px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: rgba(255, 255, 255, .06);
  display: grid;
  place-items: center;
  color: #b9c6d3;
  transition: all .25s var(--ease);
}
.footer-social a:hover { background: var(--c-accent); color: #fff; }
.footer-social svg { width: 17px; height: 17px; }

.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 20px; letter-spacing: .5px; }
.footer-col h4 span { display: block; font-size: 10.5px; color: #5d7288; letter-spacing: 1.6px; font-weight: 400; margin-top: 3px; text-transform: uppercase; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { color: #8fa0b2; font-size: 13.5px; }
.footer-col ul a:hover { color: var(--c-accent); }
.footer-contact li { display: flex; gap: 10px; margin-bottom: 14px; line-height: 1.7; }
.footer-contact svg { width: 15px; height: 15px; color: var(--c-accent); flex: none; margin-top: 4px; }
.footer-contact a { color: #cbd6e0; }
.footer-contact a:hover { color: var(--c-accent); }
.footer-qr { display: flex; align-items: center; gap: 14px; margin-top: 18px; }
.footer-qr img { width: 92px; height: 92px; border-radius: 6px; background: #fff; padding: 5px; }
.footer-qr span { font-size: 12px; color: #7c8fa2; line-height: 1.7; }
.footer-qr span strong { display: block; color: #cbd6e0; font-size: 13px; margin-bottom: 3px; }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 12.5px;
  color: #6c8095;
  flex-wrap: wrap;
}
.footer-bottom a { color: #8fa0b2; }
.footer-bottom a:hover { color: var(--c-accent); }
.footer-bottom .links { display: flex; gap: 18px; flex-wrap: wrap; }

/* 侧边悬浮 */
.float-bar {
  position: fixed;
  right: 18px;
  bottom: 90px;
  z-index: 80;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.float-bar a, .float-bar button {
  width: 46px;
  height: 46px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid var(--c-line);
  color: var(--c-ink);
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: all .25s var(--ease);
}
.float-bar a svg, .float-bar button svg { width: 20px; height: 20px; }
.float-bar a:hover, .float-bar button:hover { background: var(--c-accent); border-color: var(--c-accent); color: #fff; }
.float-bar .ft-tip {
  position: absolute;
  right: 56px;
  top: 50%;
  transform: translateY(-50%) translateX(6px);
  background: var(--c-dark);
  color: #fff;
  font-size: 12px;
  padding: 6px 12px;
  border-radius: 4px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all .25s var(--ease);
}
.float-bar a:hover .ft-tip { opacity: 1; transform: translateY(-50%) translateX(0); }
.float-bar .to-top { opacity: 0; visibility: hidden; }
.float-bar .to-top.show { opacity: 1; visibility: visible; }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1180px) {
  .nav-item > a { padding: 0 10px; font-size: 14.5px; }
  .header-tel { display: none; }
  .feature-products { gap: 18px; }
  .prod-grid { grid-template-columns: repeat(3, 1fr); }
  .brand-strip { grid-template-columns: repeat(3, 1fr); }
  .detail-grid { grid-template-columns: 1fr 270px; gap: 28px; }
  .contact-layout { grid-template-columns: 1fr 330px; gap: 30px; }
}

@media (max-width: 1024px) {
  .section { padding: 64px 0; }
  .burger { display: flex; }
  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    height: auto;
    max-height: calc(100vh - 110px);
    overflow-y: auto;
    padding: 8px 0 20px;
    box-shadow: 0 20px 40px rgba(14, 30, 48, .16);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: all .3s var(--ease);
    z-index: 95;
  }
  .nav.open { transform: none; opacity: 1; visibility: visible; }
  .nav-item { display: block; width: 100%; height: auto; border-bottom: 1px solid #f2f5f8; }
  .nav-item > a {
    display: flex;
    width: 100%;
    height: 50px;
    padding: 0 24px;
    justify-content: space-between;
    align-items: center;
    box-sizing: border-box;
    -webkit-tap-highlight-color: rgba(255, 106, 26, .12);
  }
  .nav-item > a:active { background: #f4f7fa; color: var(--c-accent); }
  .nav-drop a { display: block; width: 100%; box-sizing: border-box; }
  .nav-drop a:active { background: #f1f5f9; color: var(--c-accent); }
  /* 去掉 iOS 下 backdrop-filter 可能导致的点击异常 */
  .site-header { backdrop-filter: none; -webkit-backdrop-filter: none; background: #fff; }
  .nav-item > a::after { display: none; }
  .nav-item .caret { display: none; }
  .nav-drop {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    border: 0;
    border-radius: 0;
    padding: 0 0 8px;
    display: none;
    min-width: 0;
  }
  .nav-item.open .nav-drop { display: block; }
  /* 关键修复：覆盖桌面端 hover/focus 规则里的 translate(-50%)，否则移动端子菜单会被左移出屏幕看不见 */
  .nav-item:hover .nav-drop,
  .nav-item:focus-within .nav-drop,
  .nav-item.open .nav-drop {
    position: static;
    top: auto;
    left: auto;
    right: auto;
    transform: none;
    opacity: 1;
    visibility: visible;
    min-width: 0;
    box-shadow: none;
    border: 0;
    padding: 0 0 8px;
  }
  .nav-drop a {
    display: block;
    width: 100%;
    box-sizing: border-box;
    padding: 12px 40px;
    background: #f8fafc;
    border-bottom: 1px solid #f2f5f8;
    border-radius: 0;
    color: var(--c-text);
    font-size: 14.5px;
    text-align: left;
  }
  .header-cta .btn { display: none; }
  .hero { height: 560px; }
  .hero-quick ul { grid-template-columns: repeat(2, 1fr); }
  .hero-quick li:nth-child(3) { border-left: 0; }
  .hero-quick li:nth-child(n+3) { border-top: 1px solid var(--c-line); }
  .feature-products { grid-template-columns: repeat(2, 1fr); }
  .fp-card { aspect-ratio: 4 / 3.4; }
  .sol-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .layout { grid-template-columns: 1fr; gap: 32px; }
  .side { position: static; }
  .side-title { border-radius: var(--radius); padding: 16px 20px; }
  .side-title span { display: none; }
  .side-nav {
    border: 1px solid var(--c-line);
    border-top: 0;
    border-radius: 0 0 var(--radius) var(--radius);
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .side-nav a { flex: 0 0 auto; border-bottom: 0; border-right: 1px solid #eff3f6; padding: 12px 18px; font-size: 13.5px; white-space: nowrap; }
  .side-nav::-webkit-scrollbar { height: 0; }
  .side-nav a svg { display: none; }
  .side-contact { display: none; }
  .about-split { grid-template-columns: 1fr; gap: 56px; }
  .about-media { max-width: 560px; }
  .about-media .m-sub { right: 0; }
  .about-media .m-badge { left: -6px; }
  .sol-row { grid-template-columns: 1fr; }
  .sol-row:nth-child(even) .sol-row-media { order: 0; }
  .sol-row-media { min-height: 240px; }
  .detail-grid { grid-template-columns: 1fr; }
  .detail-aside { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
  .aside-card + .aside-card { margin-top: 0; }
  .news-item { grid-template-columns: 240px 1fr; }
  .news-item .n-body { padding: 22px 24px 22px 0; }
  .contact-layout { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: repeat(3, 1fr); }
  .flow-item::after { display: none; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 36px; }
  .cta-inner { flex-direction: column; align-items: flex-start; gap: 26px; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 26px 0; }
  .stat:nth-child(3) { border-left: 0; }
  .page-banner { height: 280px; }
  .detail-aside .aside-quote { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  .container { width: 100% - 36px; width: min(var(--container), 100% - 36px); }
  :root { --header-h: 66px; }
  .topbar { display: none; }
  .nav { max-height: calc(100vh - 66px); }
  .logo-mark { width: 38px; height: 38px; }
  .logo-text strong { font-size: 18px; }
  .logo-text span { font-size: 8.5px; letter-spacing: 1.4px; }
  .hero { height: auto; min-height: 0; padding: 0; }
  .hero-slide { position: relative; inset: auto; display: none; opacity: 1; transform: none; }
  .hero-slide.active { display: block; }
  .hero-inner { padding: 88px 0 76px; height: auto; }
  .hero-dots { bottom: 26px; }
  .hero h1 { font-size: 28px; }
  .hero-sub { font-size: 14px; margin-bottom: 26px; }
  .hero-actions .btn { height: 42px; padding: 0 18px; font-size: 13.5px; }
  .hero-dots { bottom: 24px; }
  .hero-quick { margin-top: 0; }
  .hero-quick ul { grid-template-columns: 1fr; }
  .hero-quick li + li { border-left: 0; border-top: 1px solid var(--c-line); }
  .hero-quick a { padding: 16px 18px; }
  .hero-quick .q-icon { width: 40px; height: 40px; }
  .section { padding: 52px 0; }
  .sec-head { flex-direction: column; align-items: flex-start; gap: 14px; margin-bottom: 30px; }
  .feature-products, .prod-grid, .sol-grid, .case-grid, .culture-grid, .cap-grid, .honor-grid, .gallery, .prod-list, .mini-cases, .contact-grid { grid-template-columns: 1fr; }
  .fp-card { aspect-ratio: 4 / 3; }
  .honor-showcase { grid-template-columns: 1fr; }
  .cap-grid.cols-2 { grid-template-columns: 1fr; }
  .org-groups { grid-template-columns: 1fr; }
  .about-points { grid-template-columns: 1fr; }
  .benefit-list { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat { padding: 4px 14px; }
  .brand-strip { grid-template-columns: repeat(2, 1fr); }
  .brand-item { height: 76px; }
  .about-points { grid-template-columns: 1fr; }
  .about-media .m-badge { padding: 12px 14px; }
  .about-media .m-badge strong { font-size: 24px; }
  .about-media .m-sub { width: 44%; bottom: -22px; }
  .org-groups { grid-template-columns: 1fr; }
  .org { text-align: left; }
  .org-top, .org-level-title { display: block; text-align: center; }
  .org-line { margin-left: 50%; }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .form-card { padding: 28px 22px; }
  .news-item { grid-template-columns: 1fr; }
  .news-item .n-body { padding: 0 22px 22px; }
  .news-item .n-img { aspect-ratio: 16 / 9; }
  .footer-main { grid-template-columns: 1fr; gap: 30px; padding: 44px 0 34px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 10px; }
  .cta-inner { padding: 48px 0; }
  .detail-aside { grid-template-columns: 1fr; }
  .side-nav a { flex: 1 1 45%; font-size: 13px; }
  .data-table { font-size: 12.5px; min-width: 760px; }
  .float-bar { right: 10px; bottom: 70px; }
  .float-bar a:nth-child(2) { display: none; }
  .float-bar a, .float-bar button { width: 40px; height: 40px; }
  .float-bar a svg, .float-bar button svg { width: 17px; height: 17px; }
  .page-banner { height: 230px; }
  .page-banner .pb-sub { display: none; }
  .crumb .container { height: 46px; font-size: 12.5px; }
  .panel { padding: 22px 18px; }
  .spec-table { font-size: 12.5px; }
  .spec-table th, .spec-table td { padding: 10px 10px; }
}

@media (hover: none) {
  .nav-item:hover > a { color: var(--c-ink); }
  .nav-item:hover > a::after { transform: scaleX(0); }
  .nav-item.active:hover > a { color: var(--c-accent); }
  .nav-item.active:hover > a::after { transform: scaleX(1); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
}