/* ============================================================
   汇影光学官网 · 设计系统 V3（华为极简风 + 紫外紫品牌点缀）
   参考华为官网：白底大留白 / 近黑文字 / 无边框卡片 / 品牌色小面积点缀
   ============================================================ */
:root {
  --bg: #ffffff;            /* 纯白底 */
  --bg-gray: #f7f7f7;       /* 浅灰区块 */
  --card: #ffffff;
  --text: #111111;          /* 近黑主文字 */
  --text-2: #555555;        /* 次级文字 */
  --text-3: #999999;        /* 弱文字/日期 */
  --line: #e8e8e8;          /* 分隔线 */
  --brand: #6d28d9;         /* 紫外紫 品牌色（小面积点缀） */
  --brand-dark: #5b21b6;    /* 深紫 hover */
  --brand-soft: #ede9fe;    /* 极浅紫（仅极少数强调背景） */
  --deep: #141019;          /* 深色横幅/页脚底 */
  --font: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  font-size: 15px;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { max-width: 1440px; margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section-gray { background: var(--bg-gray); }

/* 华为式区块标题行：左标题 + 右"更多"链接 */
.sec-row { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 44px; }
.sec-row h2 { font-size: 34px; font-weight: 600; color: var(--text); letter-spacing: .5px; }
.sec-row .more { color: var(--text-2); font-size: 14px; transition: color .2s; white-space: nowrap; margin-left: 20px; }
.sec-row .more:hover { color: var(--brand); }
.sec-row .more::after { content: " →"; }

/* 文字链接（华为式） */
.link { color: var(--text-2); font-size: 14px; transition: color .2s; display: inline-block; }
.link:hover { color: var(--brand); }
.link::after { content: " →"; }

/* 按钮：保留一个实心品牌按钮 + 一个文字按钮 */
.btn { display: inline-block; font-size: 14px; font-weight: 500; transition: all .25s; cursor: pointer; border: none; }
.btn-brand { background: var(--brand); color: #fff; padding: 12px 36px; border-radius: 999px; }
.btn-brand:hover { background: var(--brand-dark); }
.btn-ghost { border: 1px solid #d0d0d0; color: var(--text); padding: 12px 36px; border-radius: 999px; background: transparent; }
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); }

/* ============ 导航（华为风：白底极简） ============ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255, 255, 255, .96); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s;
}
.nav.scrolled { box-shadow: 0 2px 16px rgba(0, 0, 0, .06); }
.nav-inner { display: flex; align-items: center; height: 68px; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo img { height: 34px; width: auto; }
.nav-menu { display: flex; gap: 40px; margin-left: auto; align-items: center; }
.nav-menu > li > a {
  font-size: 15px; color: var(--text); font-weight: 400; padding: 4px 0;
  position: relative; transition: color .2s;
}
.nav-menu > li > a::after {
  content: ""; position: absolute; left: 0; bottom: -4px; width: 0; height: 2px;
  background: var(--brand); transition: width .25s;
}
.nav-menu > li > a:hover, .nav-menu > li > a.active { color: var(--brand); }
.nav-menu > li > a:hover::after, .nav-menu > li > a.active::after { width: 100%; }
.nav-lang {
  margin-left: 26px; font-size: 13px; color: var(--text-2); padding: 4px 12px;
  border: 1px solid var(--line); border-radius: 12px; transition: all .2s;
}
.nav-lang:hover { color: var(--brand); border-color: var(--brand); }
.nav-burger { display: none; margin-left: auto; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-burger span { display: block; width: 22px; height: 2px; background: var(--text); margin: 5px 0; transition: .3s; }

/* ============ Hero（满铺大图 + 右侧文字） ============ */
.hero { position: relative; min-height: 88vh; display: flex; align-items: center; margin-top: 68px; overflow: hidden; background: var(--deep); }
.hero-bg { position: absolute; inset: 0; }
/* Hero 背景轮播：多张候选图淡入淡出切换 */
.hero-slider { position: absolute; inset: 0; }
.hero-slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity 1s ease;
  background-size: cover; background-position: center 30%; background-repeat: no-repeat;
}
.hero-slide.active { opacity: 1; }
/* 右侧轻渐变：保证右侧文字可读，图片主体保持清晰 */
.hero-bg::after {
  content: ""; position: absolute; inset: 0; z-index: 2;
  background: linear-gradient(270deg, rgba(10, 8, 20, .60) 0%, rgba(10, 8, 20, .32) 40%, rgba(10, 8, 20, .06) 68%, transparent 88%);
}
/* Hero 切换箭头（左下角，不干扰文字） */
.hero-nav {
  position: absolute; left: 32px; bottom: 26px; z-index: 3;
  display: flex; align-items: center; gap: 10px;
}
.hero-arrow {
  width: 36px; height: 36px; border-radius: 50%; cursor: pointer;
  background: rgba(255, 255, 255, .14); border: 1px solid rgba(255, 255, 255, .35);
  color: #fff; font-size: 19px; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  transition: all .25s;
}
.hero-arrow:hover { background: var(--brand); border-color: var(--brand); }
.hero-count { color: rgba(255, 255, 255, .75); font-size: 12.5px; letter-spacing: 1px; min-width: 34px; text-align: center; }
.hero-inner {
  position: relative; z-index: 2; width: 100%; max-width: none; margin: 0 auto;
  padding: 0 44px 0 12px; text-align: right;
}
.hero .kicker { font-size: 13px; letter-spacing: 5px; color: rgba(255,255,255,.85); text-transform: uppercase; }
.hero h1 { font-size: 38px; line-height: 1.32; color: #fff; font-weight: 600; margin-top: 16px; text-shadow: 0 2px 24px rgba(0,0,0,.35); }
.hero .btns { margin-top: 34px; display: flex; gap: 14px; justify-content: flex-end; align-items: center; flex-wrap: wrap; }
/* 透明描边按钮，悬停变紫 */
.hero .btn-brand {
  background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.8);
  border-radius: 999px; padding: 12px 36px; transition: all .25s;
}
.hero .btn-brand:hover { background: var(--brand); border-color: var(--brand); color: #fff; }
/* 次按钮：圆弧描边，框比主按钮小一号 */
.hero .btn-ghost-light {
  background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.8);
  border-radius: 999px; padding: 9px 24px; font-size: 13.5px; font-weight: 500;
  display: inline-block; transition: all .25s;
}
.hero .btn-ghost-light:hover { background: var(--brand); border-color: var(--brand); color: #fff; }
.hero-scroll { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); color: rgba(255,255,255,.7); font-size: 12px; letter-spacing: 3px; z-index: 2; animation: float 2.2s infinite; }
@keyframes float { 0%,100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 7px); } }

/* ============ 数据条（华为风：黑字灰标，无彩色） ============ */
.stats { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--bg); }
.stats-inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; padding: 52px 0; }
.stat { text-align: center; }
.stat b { font-size: 44px; font-weight: 600; color: var(--text); display: block; line-height: 1.2; }
.stat span { color: var(--text-2); font-size: 14px; margin-top: 4px; display: block; }

/* ============ 业务板块（卡片化 + 轻阴影） ============ */
.biz-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.biz-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 34px 30px; box-shadow: 0 4px 16px rgba(17, 17, 17, .05);
  transition: all .3s;
}
.biz-card:hover { box-shadow: 0 10px 28px rgba(17, 17, 17, .10); transform: translateY(-3px); }
.biz-icon { width: 52px; height: 52px; margin-bottom: 24px; display: flex; align-items: center; justify-content: center; }
.biz-icon svg { width: 44px; height: 44px; stroke-width: 1.4; }
.biz-card h3 { font-size: 22px; font-weight: 600; margin-bottom: 12px; }
.biz-card > p { color: var(--text-2); font-size: 14.5px; margin-bottom: 18px; }
.biz-card ul { margin-bottom: 20px; }
.biz-card ul li { font-size: 14px; color: var(--text-2); padding: 5px 0 5px 16px; position: relative; }
.biz-card ul li::before { content: "·"; position: absolute; left: 2px; color: var(--brand); font-weight: 700; }

/* ============ 产品展示（图卡 + 轻阴影） ============ */
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.prod-card {
  display: block; background: var(--card); border-radius: 12px;
  box-shadow: 0 4px 16px rgba(17, 17, 17, .05); transition: all .3s;
}
.prod-card:hover { box-shadow: 0 10px 28px rgba(17, 17, 17, .10); transform: translateY(-3px); }
.prod-card .ph { overflow: hidden; background: #f5f5f7; aspect-ratio: 4 / 3; border-radius: 12px 12px 0 0; display: flex; align-items: center; justify-content: center; }
.prod-card .ph img { width: 100%; height: 100%; object-fit: contain; transition: transform .5s ease; }
.prod-card:hover .ph img { transform: scale(1.04); }
.prod-card .info { padding: 18px 10px 0; text-align: center; }
.prod-card .info h3 { font-size: 17px; font-weight: 600; color: var(--text); transition: color .2s; }
.prod-card:hover .info h3 { color: var(--brand); }
.prod-card .info p { font-size: 13.5px; color: var(--text-3); margin-top: 5px; }

/* ============ 关于我们（华为式：左文右图） ============ */
.about-wrap { display: grid; grid-template-columns: 1.05fr 1fr; gap: 72px; align-items: center; }
.about-wrap .text .kicker { font-size: 13px; letter-spacing: 4px; color: var(--text-3); text-transform: uppercase; margin-bottom: 14px; }
.about-wrap .text h2 { font-size: 34px; font-weight: 600; margin-bottom: 24px; }
.about-wrap .text p { color: var(--text-2); font-size: 15px; margin-bottom: 14px; text-align: justify; }
.about-wrap .text .tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 24px 0 32px; }
.tag-pill { background: var(--bg-gray); color: var(--text-2); font-size: 13px; padding: 6px 16px; border-radius: 12px; }
.about-wrap .photo { overflow: hidden; border-radius: 12px; }
.about-wrap .photo img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.about-wrap .photo:hover img { transform: scale(1.03); }

/* ============ 车间风采（华为式：图 + 图下标题） ============ */
.workshop-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.workshop-item .ph { overflow: hidden; background: var(--bg-gray); aspect-ratio: 4 / 3; border-radius: 12px; }
.workshop-item .ph img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.workshop-item:hover .ph img { transform: scale(1.04); }
.workshop-item .cap { padding: 14px 2px 0; font-size: 15px; font-weight: 500; color: var(--text); }
.workshop-item .cap-sub { padding: 2px 2px 0; font-size: 13px; color: var(--text-3); }

/* ============ 行业应用（图标卡） ============ */
.ind-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; }
.ind-card { text-align: left; }
.ind-card .ic { font-size: 34px; margin-bottom: 16px; }
.ind-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.ind-card p { font-size: 13.5px; color: var(--text-2); }

/* ============ 公司愿景（华为式深色收尾区，无光晕） ============ */
.vision { background: var(--deep); color: #fff; padding: 110px 0; position: relative; }
.vision .container { position: relative; z-index: 2; }
.vision .kicker { font-size: 13px; letter-spacing: 5px; color: rgba(255,255,255,.5); text-transform: uppercase; }
.vision h2 { font-size: 40px; font-weight: 600; margin-top: 16px; max-width: 640px; line-height: 1.35; }
.vision h2 .brand { color: #a78bfa; }
.vision p { color: rgba(255,255,255,.65); margin-top: 20px; font-size: 15px; max-width: 560px; }
.vision .link { color: rgba(255,255,255,.85); margin-top: 32px; }
.vision .link:hover { color: #a78bfa; }
.vision .link::after { content: " →"; }

/* ============ 新闻（华为式：标题行 + 简洁列表卡） ============ */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card { display: block; padding: 28px 24px; border: 1px solid var(--line); border-radius: 12px; background: var(--card); transition: all .25s; }
.news-card:hover { border-color: var(--brand); box-shadow: 0 8px 30px rgba(0,0,0,.06); }
.news-card .date { font-size: 12.5px; color: var(--text-3); letter-spacing: 1px; }
.news-card h3 { font-size: 17px; font-weight: 600; margin: 12px 0 10px; line-height: 1.5; transition: color .2s; }
.news-card:hover h3 { color: var(--brand); }
.news-card p { font-size: 13.5px; color: var(--text-2); }
.news-card .more { display: inline-block; margin-top: 16px; font-size: 13px; color: var(--text-2); }
.news-card:hover .more { color: var(--brand); }
.news-card .more::after { content: " →"; }

/* ============ 联系（华为式两栏） ============ */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 72px; }
.baidu-map { width: 100%; height: 420px; border: 1px solid var(--line); border-radius: 12px; margin-top: 28px; background: #eef0ef; }
.contact-info .kicker { font-size: 13px; letter-spacing: 4px; color: var(--text-3); text-transform: uppercase; margin-bottom: 14px; }
.contact-info h2 { font-size: 34px; font-weight: 600; margin-bottom: 14px; }
.contact-info > p { color: var(--text-2); margin-bottom: 36px; }
.contact-item { display: flex; gap: 18px; margin-bottom: 26px; }
.contact-item .ci-icon {
  width: 44px; height: 44px; flex-shrink: 0; display: flex; align-items: center; justify-content: center;
  font-size: 20px; background: var(--bg-gray); border-radius: 12px;
}
.contact-item b { display: block; font-size: 14.5px; font-weight: 600; }
.contact-item span { color: var(--text-2); font-size: 14px; }
.form-card { border: 1px solid var(--line); border-radius: 12px; padding: 40px; background: var(--card); }
.form-card h3 { font-size: 20px; font-weight: 600; margin-bottom: 26px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 8px; }
.form-group input, .form-group textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px;
  font-size: 14px; font-family: inherit; background: var(--bg); color: var(--text);
  transition: all .2s; outline: none;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(109, 40, 217, .08); }
.form-group textarea { min-height: 110px; resize: vertical; }
.form-card .btn-brand { width: 100%; margin-top: 8px; }

/* ============ 页脚（华为式深色多列） ============ */
.footer { background: var(--deep); color: rgba(255,255,255,.7); }
.footer-main { display: grid; grid-template-columns: repeat(4, max-content); justify-content: center; gap: 144px; padding: 72px 0 48px; }
.footer-main > div { text-align: center; }
.footer h4 { color: #fff; font-size: 15px; font-weight: 500; margin-bottom: 20px; }
.footer a { color: rgba(255,255,255,.6); font-size: 14px; display: block; margin-bottom: 12px; transition: color .2s; }
.footer a:hover { color: #a78bfa; }
.footer-qr .qr-box { width: 132px; background: #fff; border-radius: 8px; padding: 7px; box-shadow: 0 4px 14px rgba(0,0,0,.25); margin: 0 auto; }
.footer-qr .qr-box img { display: block; width: 100%; height: auto; border-radius: 4px; }
.footer-qr p { font-size: 12.5px; color: rgba(255,255,255,.5); margin-top: 12px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 22px 0; text-align: center; font-size: 12.5px; color: rgba(255,255,255,.4); }
.footer-bottom a { display: inline; color: rgba(255,255,255,.5); }
.footer-bottom a:hover { color: #a78bfa; }

/* ============ FAQ 手风琴 ============ */
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item:first-child { border-top: 1px solid var(--line); }
.faq-q { display: flex; justify-content: space-between; align-items: center; padding: 22px 4px; cursor: pointer; font-size: 16px; font-weight: 500; }
.faq-q::after { content: "+"; font-size: 20px; color: var(--text-3); transition: transform .3s; }
.faq-item.open .faq-q::after { transform: rotate(45deg); color: var(--brand); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; padding: 0 4px; }
.faq-item.open .faq-a { max-height: 400px; padding: 0 4px 24px; }
.faq-a p { color: var(--text-2); font-size: 14.5px; }

/* ============ 页头（内页用） ============ */
.page-head { padding: 132px 0 60px; background: var(--bg-gray); border-bottom: 1px solid var(--line); }
.page-head h1 { font-size: 36px; font-weight: 600; }
.page-head p { color: var(--text-2); margin-top: 12px; font-size: 15px; max-width: 720px; }
.crumb { font-size: 13px; color: var(--text-3); margin-bottom: 12px; }
.crumb a:hover { color: var(--brand); }

/* ============ 企业文化 ============ */
.culture-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.culture-card { border: 1px solid var(--line); border-radius: 12px; padding: 32px 28px; background: var(--card); transition: all .25s; }
.culture-card:hover { border-color: rgba(109,40,217,.35); box-shadow: 0 8px 28px rgba(0,0,0,.05); }
.culture-card .num { font-size: 12px; letter-spacing: 2px; color: var(--brand); }
.culture-card h3 { font-size: 18px; font-weight: 600; margin: 10px 0 8px; }
.culture-card p { font-size: 13.5px; color: var(--text-2); line-height: 1.8; }

/* ============ 发展历程时间线 ============ */
.timeline { border-left: 2px solid var(--line); padding-left: 30px; margin-left: 8px; }
.tl-item { position: relative; padding-bottom: 32px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before { content: ""; position: absolute; left: -37px; top: 7px; width: 12px; height: 12px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 4px rgba(109,40,217,.12); }
.tl-item .year { font-size: 16px; font-weight: 600; color: var(--brand); }
.tl-item p { font-size: 14px; color: var(--text-2); margin-top: 4px; }

/* ============ 组织布局（地图 + 介绍） ============ */
.office-map-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: stretch; }
.map-box {
  display: flex; align-items: center; justify-content: center;
  min-width: 0; max-width: 100%;
}
.map-box img { display: block; max-height: 100%; max-width: 100%; width: auto; }
.office-info { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.office-group { display: flex; flex-direction: column; gap: 12px; }
.office-item {
  flex: 1; display: flex; gap: 14px; align-items: flex-start;
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 14px 18px; box-shadow: 0 4px 14px rgba(17,17,17,.04);
}
.office-tag {
  flex-shrink: 0; width: 42px; height: 42px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center; font-size: 18px;
  background: #f1f3f2;
}
.office-item .bd { flex: 1; }
.office-item b { display: inline-block; font-size: 15px; color: var(--text); margin-bottom: 2px; }
.office-item .role {
  display: inline-block; font-size: 11px; color: #6a7270;
  background: #f1f3f2; padding: 1px 9px; border-radius: 99px; margin-left: 8px; vertical-align: 2px;
}
.office-item p { font-size: 13px; color: var(--text-2); margin-top: 3px; }
.office-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.office-card { border: 1px solid var(--line); border-radius: 12px; padding: 36px 32px; background: var(--card); transition: all .25s; }
.office-card:hover { border-color: rgba(109,40,217,.35); box-shadow: 0 8px 28px rgba(0,0,0,.05); }
.office-card .tag { display: inline-block; font-size: 12px; color: var(--brand); border: 1px solid var(--line); padding: 2px 10px; border-radius: 12px; margin-bottom: 14px; }
.office-card h3 { font-size: 19px; font-weight: 600; }
.office-card .role { color: var(--text-2); font-size: 13px; margin: 6px 0 14px; }
.office-card p { font-size: 14px; color: var(--text-2); line-height: 1.9; }

/* ============ 荣誉资质（证书三组展示） ============ */
.qual-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; align-items: stretch; }
.qual-card { border: 1px solid var(--line); border-radius: 14px; background: var(--card); overflow: hidden; display: flex; flex-direction: column; transition: all .25s; }
.qual-card:hover { border-color: rgba(109,40,217,.4); box-shadow: 0 10px 28px rgba(0,0,0,.06); transform: translateY(-3px); }
.qual-ph { height: 300px; display: flex; align-items: center; justify-content: center; background: linear-gradient(180deg, #f8f7fc, #f1eefa); padding: 18px; }
.qual-ph img { max-width: 100%; max-height: 100%; object-fit: contain; border-radius: 6px; }
.qual-info { padding: 16px 20px 20px; text-align: center; border-top: 1px solid var(--line); }
.qual-info h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.qual-info span { font-size: 13px; color: var(--text-3); line-height: 1.7; display: block; }

/* ============ 产品分类 ============ */
.cat-block { margin-bottom: 72px; scroll-margin-top: 96px; }
.cat-block:last-child { margin-bottom: 0; }
.cat-head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 30px; }
.cat-head h2 { font-size: 26px; font-weight: 600; }
.cat-head span { color: var(--text-3); font-size: 13.5px; }
.cat-sub { font-size: 17px; font-weight: 600; color: var(--text-2); margin: 26px 0 18px; padding-left: 12px; border-left: 3px solid var(--brand); }
.cat-sub-row { display: flex; flex-wrap: wrap; gap: 26px; margin: 26px 0 18px; }
.cat-sub-row .cat-sub { margin: 0; }
.cat-tabs { display: flex; gap: 12px; margin-bottom: 44px; flex-wrap: wrap; }
.cat-tabs a { border: 1px solid var(--line); border-radius: 12px; padding: 8px 22px; font-size: 14px; color: var(--text-2); transition: all .2s; }
.cat-tabs a:hover { border-color: var(--brand); color: var(--brand); }
.ph-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #f3f0fa, #e8e2f4); color: var(--text-3); font-size: 13px; }

/* ============ 新闻列表（垂直） ============ */
.news-list .news-card { display: flex; gap: 28px; align-items: flex-start; padding: 28px 6px; border: none; border-bottom: 1px solid var(--line); border-radius: 0; box-shadow: none; }
.news-list .news-card:hover { border-color: rgba(109,40,217,.25); box-shadow: none; }
.news-list .news-card .date { flex-shrink: 0; width: 110px; padding-top: 4px; }
.news-list .news-card .bd h3 { margin: 0 0 8px; font-size: 17px; }
.news-list .news-card .bd p { font-size: 13.5px; }
.news-list .news-card .more { margin-top: 10px; }
.news-tip { margin-top: 40px; padding: 20px 24px; background: var(--bg-gray); border-radius: 12px; font-size: 13.5px; color: var(--text-2); }

/* ============ 返回顶部 ============ */
.to-top {
  position: fixed; right: 26px; bottom: 26px; z-index: 99;
  width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line);
  background: #fff; color: var(--text-2); font-size: 18px; cursor: pointer; line-height: 1;
  box-shadow: 0 4px 16px rgba(0,0,0,.10); opacity: 0; visibility: hidden; transition: all .3s;
}
.to-top.show { opacity: 1; visibility: visible; }
.to-top:hover { color: var(--brand); border-color: var(--brand); }

/* ============ 企业风采轮播（三图网格 + 外侧箭头翻页） ============ */
.carousel-wrap { display: flex; align-items: center; gap: 14px; }
.carousel { flex: 1; overflow: hidden; }
.carousel-track { display: flex; transition: transform .55s ease; margin: 0 -12px; }
.carousel-item { flex: 0 0 33.333%; min-width: 33.333%; position: relative; padding: 0 12px; }
.carousel-item img { width: 100%; height: 260px; object-fit: cover; display: block; border-radius: 12px; }
.carousel-item .cap { position: static; background: none; color: var(--text); font-size: 15px; font-weight: 500; padding: 14px 2px 0; text-align: center; }
.carousel-item .cap-sub { display: block; color: var(--text-3); font-size: 13px; margin-top: 2px; font-weight: 400; }
/* 箭头在图片外侧（flex 布局，不压图） */
.carousel-btn {
  flex-shrink: 0; width: 42px; height: 42px; border-radius: 50%;
  border: 1px solid var(--line); background: #fff; color: var(--text-2);
  box-shadow: 0 4px 14px rgba(0,0,0,.08); font-size: 20px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all .25s; line-height: 1;
}
.carousel-btn:hover { background: var(--brand); border-color: var(--brand); color: #fff; }
.carousel-dots { display: flex; gap: 8px; justify-content: center; margin-top: 22px; }
.carousel-dots button { width: 9px; height: 9px; border-radius: 50%; border: none; background: var(--line); cursor: pointer; padding: 0; transition: all .25s; }
.carousel-dots button.active { background: var(--brand); width: 22px; border-radius: 5px; }
@media (max-width: 992px) {
  .carousel-item { flex: 0 0 50%; min-width: 50%; }
}
@media (max-width: 768px) {
  .carousel-item { flex: 0 0 100%; min-width: 100%; }
  .carousel-item img { height: 220px; }
  .carousel-btn { width: 34px; height: 34px; font-size: 16px; }
  .carousel-wrap { gap: 8px; }
}

/* ============ 移动端适配 ============ */
@media (max-width: 992px) {
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .workshop-grid { grid-template-columns: repeat(2, 1fr); }
  .ind-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); gap: 36px; }
  .about-wrap { grid-template-columns: 1fr; gap: 44px; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .biz-grid { gap: 40px; }
  .culture-grid { grid-template-columns: repeat(2, 1fr); }
  .office-grid { grid-template-columns: repeat(2, 1fr); }
  .office-map-wrap { grid-template-columns: 1fr; }
  .office-info { grid-template-columns: 1fr; }
  .map-box img { max-height: 300px; }
  .qual-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .section { padding: 68px 0; }
  .page-head { padding: 108px 0 44px; }
  .page-head h1 { font-size: 28px; }
  .hero { min-height: 0; }  /* 手机端高度自适应内容，保证完整显示 */
  .hero-inner { right: auto; left: auto; top: auto; max-width: none;
                padding: 92px 20px 100px; text-align: right; }  /* 顶部避开导航栏，底部留足空间 */
  .hero h1 { font-size: 26px; }
  .hero p { font-size: 15px; }
  .hero-nav { left: 20px; bottom: 18px; }
  .hero-scroll { display: none; }  /* 手机端隐藏 SCROLL 提示 */
  .sec-row h2 { font-size: 26px; }
  .sec-row { flex-direction: column; gap: 8px; margin-bottom: 32px; }
  .sec-row .more { margin-left: 0; }
  .culture-grid { grid-template-columns: 1fr; }
  .office-grid { grid-template-columns: 1fr; }
  .qual-grid { grid-template-columns: 1fr; }
  .timeline { margin-left: 4px; }
  .cat-head { flex-direction: column; gap: 4px; }
  .news-list .news-card { flex-direction: column; gap: 8px; }
  .news-list .news-card .date { width: auto; }
  .to-top { right: 16px; bottom: 16px; }
  .nav-menu {
    position: fixed; top: 68px; left: 0; right: 0; background: #fff;
    flex-direction: column; gap: 0; padding: 12px 28px 24px;
    border-bottom: 1px solid var(--line); display: none;
  }
  .nav-menu.open { display: flex; }
  .nav-menu > li { width: 100%; }
  .nav-menu > li > a { display: block; padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav-burger { display: block; }
  .nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-burger.open span:nth-child(2) { opacity: 0; }
  .nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .biz-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}