/* ============================================================
   安捷信官网首页改版 V2 · 生产版样式
   文件位置：/skin/css/ajx-home.css
   作用：首页新版全套样式（自包含，不依赖旧 css）
   修改记录：2026-10-27 由 WorkBuddy 生成
   ============================================================ */

/* ============ 基础与配色（沿用官网深蓝体系） ============ */
:root{
  --navy:#0B2545;
  --blue:#123B6D;
  --blue2:#1B5CB8;
  --cyan:#17B8CE;
  --ink:#1F2D3D;
  --gray:#5B6B7C;
  --line:#E8EEF5;
  --bg:#F5F8FC;
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Microsoft YaHei","PingFang SC",sans-serif;color:var(--ink);background:#fff;line-height:1.7}
a{text-decoration:none;color:inherit}
html,body{overflow-x:hidden}
img{max-width:100%;display:block}
ul{list-style:none}
.wrap{max-width:1440px;margin:0 auto;padding:0 32px}

/* ============ 1. 吸顶导航 ============ */
header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(11,37,69,.82);
  transition:box-shadow .35s ease,background .35s ease}
header.scrolled{background:rgba(9,28,54,.93);box-shadow:0 10px 30px rgba(4,18,36,.45)}
.nav{display:flex;align-items:center;justify-content:space-between;height:78px}
.logo{display:flex;align-items:center;gap:12px;flex:none}
.logo-img{height:44px;width:auto;max-width:240px;object-fit:contain}
.nav-right{display:flex;align-items:center;gap:18px}
.menu{display:flex;gap:2px}
.menu>li{position:relative}
.menu>li>a{display:block;padding:0 15px;height:78px;line-height:78px;color:rgba(255,255,255,.92);
  font-size:15px;letter-spacing:.5px;position:relative;transition:color .2s;white-space:nowrap}
.menu>li>a::after{content:"";position:absolute;left:15px;right:15px;bottom:20px;height:3px;border-radius:2px;
  background:var(--cyan);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.menu>li:hover>a,.menu>li.cur>a{color:#fff}
.menu>li:hover>a::after,.menu>li.cur>a::after{transform:scaleX(1)}
.caret{font-size:10px;margin-left:4px;color:rgba(255,255,255,.55);font-style:normal}
.sub{position:absolute;top:78px;left:50%;transform:translateX(-50%) translateY(8px);min-width:175px;
  background:#fff;border-radius:0 0 12px 12px;box-shadow:0 14px 34px rgba(11,37,69,.16);
  padding:8px 0;opacity:0;visibility:hidden;transition:all .22s;border-top:3px solid var(--cyan);z-index:10}
.menu>li:hover .sub{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.sub a{display:block;padding:9px 22px;font-size:14px;color:var(--ink);white-space:nowrap;transition:all .18s}
.sub a:hover{background:var(--bg);color:var(--blue2);padding-left:28px}
.lang{display:flex;gap:8px;font-size:12.5px;color:rgba(255,255,255,.55);letter-spacing:1px;flex:none}
.lang a{color:rgba(255,255,255,.75);transition:color .2s}
.lang a:hover{color:var(--cyan)}
/* 移动端汉堡按钮（桌面隐藏） */
.menu-btn{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;
  background:transparent;border:none;cursor:pointer;flex:none}
.menu-btn span{display:block;width:24px;height:2.5px;border-radius:2px;background:#fff;margin:0 auto;transition:all .25s}
body.nav-open .menu-btn span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
body.nav-open .menu-btn span:nth-child(2){opacity:0}
body.nav-open .menu-btn span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* ============ 2. 轮播 Banner ============ */
.hero{position:relative;height:660px;margin-top:78px;overflow:hidden;background:var(--navy)}
.slide{position:absolute;inset:0;opacity:0;transition:opacity 1s ease}
.slide.on{opacity:1;z-index:2}
.slide .ph{position:absolute;inset:0;overflow:hidden;z-index:1}
.slide .ph img{width:100%;height:100%;object-fit:cover}
/* 左侧暗色渐变，保证文字可读（Banner 图建议换无字大图，文字由网页渲染） */
.slide .ph::after{content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(9,28,54,.86) 0%,rgba(9,28,54,.62) 44%,rgba(9,28,54,.30) 74%,rgba(9,28,54,.08) 100%)}
.slide.on .ph{animation:kb 6s ease-out forwards}
@keyframes kb{from{transform:scale(1.06)}to{transform:scale(1)}}
.hero-inner{position:relative;z-index:3;height:100%;display:flex;flex-direction:column;justify-content:center}
.hero-kicker{color:var(--cyan);font-size:15px;letter-spacing:6px;margin-bottom:14px}
.hero-title{color:#fff;font-size:46px;font-weight:800;letter-spacing:3px;line-height:1.3}
.hero-title:empty{display:none}
.hero-sub{color:rgba(255,255,255,.78);font-size:17px;margin-top:16px;letter-spacing:1px;max-width:580px}
.hero-btn{display:inline-flex;align-items:center;gap:8px;margin-top:34px;width:fit-content;
  padding:13px 34px;border-radius:40px;background:var(--cyan);color:#fff;font-size:15px;letter-spacing:2px;
  transition:background .25s,transform .25s}
.hero-btn:hover{background:var(--blue2);transform:translateY(-2px)}
/* 文字入场动效：逐行上浮淡入 */
.slide .anim{opacity:0;transform:translateY(34px)}
.slide.on .anim{animation:rise .8s cubic-bezier(.22,.8,.36,1) forwards}
.slide.on .anim.d1{animation-delay:.15s}.slide.on .anim.d2{animation-delay:.35s}
.slide.on .anim.d3{animation-delay:.55s}.slide.on .anim.d4{animation-delay:.75s}
@keyframes rise{to{opacity:1;transform:none}}
/* 校验/截图模式：关闭首屏文字动画，避免截到轮播切换瞬间 */
body.noanim .slide .anim{opacity:1 !important;transform:none !important;animation:none !important}
/* 左右切换按钮（替代原来底部的三条指示小线） */
.hero-nav{position:absolute;z-index:6;bottom:54px;width:54px;height:54px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;cursor:pointer;padding:0;
  background:rgba(11,37,69,.36);border:1px solid rgba(255,255,255,.45);
  transition:background .25s,border-color .25s,transform .25s,opacity .25s}
.hero-nav:hover{background:var(--cyan);border-color:var(--cyan);transform:translateY(-2px)}
.hero-nav:active{transform:none}
.hero-nav svg{width:24px;height:24px;fill:none;stroke:#fff;stroke-width:2;
  stroke-linecap:round;stroke-linejoin:round}
.hero-nav.prev{left:26px}
.hero-nav.next{right:26px}
.hero-nav.hide{display:none}

/* ============ 通用章节标题 ============ */
section{padding:84px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:44px;gap:20px;flex-wrap:wrap}
.sec-title{font-size:30px;font-weight:800;color:var(--navy);letter-spacing:2px;position:relative;padding-bottom:12px}
.sec-title::after{content:"";position:absolute;left:0;bottom:0;width:52px;height:4px;border-radius:2px;
  background:linear-gradient(90deg,var(--blue2),var(--cyan))}
.sec-title small{display:block;font-size:12px;color:var(--gray);letter-spacing:3px;font-weight:400;margin-top:6px}
.more-link{font-size:14px;color:var(--gray);letter-spacing:1px;transition:color .2s}
.more-link:hover{color:var(--blue2)}
.more-link::before{content:"—";margin-right:8px;color:var(--cyan)}

/* 板块底部 MORE 按钮（右对齐，与内容区右边缘齐平） */
.sec-more{display:flex;justify-content:flex-end;margin-top:38px}
.more-btn{display:inline-flex;align-items:center;gap:10px;height:46px;padding:0 26px;border-radius:999px;
  border:1px solid rgba(22,104,220,.32);background:#fff;color:var(--blue);font-size:14px;letter-spacing:1px;
  transition:all .28s ease}
.more-btn i{font-style:normal;transition:transform .28s ease}
.more-btn:hover{background:var(--blue2);border-color:var(--blue2);color:#fff;
  box-shadow:0 12px 26px rgba(22,104,220,.26);transform:translateY(-2px)}
.more-btn:hover i{transform:translateX(5px)}

/* ============ 3. 公司简介 ============ */
.about{background:var(--bg)}
.about-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:stretch}
.about-left .sec-title{margin-bottom:22px}
.about-p{color:var(--gray);font-size:15px;text-align:justify}
.about-p b{color:var(--blue)}
.about-more{display:inline-flex;align-items:center;gap:6px;margin-top:26px;font-size:14px;color:var(--blue2);
  letter-spacing:1px;transition:color .2s}
.about-more:hover{color:var(--cyan)}
.about-video{position:relative;border-radius:var(--radius);overflow:hidden;min-height:340px;background:var(--navy)}
.about-video video{width:100%;height:100%;min-height:340px;object-fit:cover;display:block}
.stats{display:flex;justify-content:space-between;gap:12px;margin-top:52px;flex-wrap:wrap}
.stat{flex:1;min-width:130px}
.stat b{font-size:38px;color:var(--navy);font-weight:800;letter-spacing:1px}
.stat b i{font-style:normal;color:var(--cyan);font-size:inherit}
.stat>span{display:block;font-size:13px;color:var(--gray);margin-top:4px;letter-spacing:.5px}

/* ============ 3.5 企业文化横幅 ============ */
.culture{padding:0;display:flex;min-height:340px}
.culture-photo{flex:0 0 44%;background:#0E9EAE url("/skin/images/ajx-culture.png") center/cover no-repeat;min-height:340px}
.culture-body{flex:1;background:linear-gradient(120deg,#0E9EAE 0%,#17B8CE 55%,#2BC8D8 100%);
  display:flex;flex-direction:column;justify-content:center;gap:34px;padding:48px 64px}
.culture-item{display:flex;gap:20px;align-items:flex-start}
.culture-ico{flex:none;width:58px;height:58px;border-radius:50%;background:rgba(255,255,255,.18);
  border:1.5px solid rgba(255,255,255,.55);display:flex;align-items:center;justify-content:center;transition:all .3s}
.culture-ico svg{width:28px;height:28px;stroke:#fff;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.culture-item h4{color:#fff;font-size:19px;letter-spacing:2px;margin-bottom:4px}
.culture-item p{color:rgba(255,255,255,.88);font-size:14px;letter-spacing:.5px}
.culture-item:hover .culture-ico{background:rgba(255,255,255,.32);transform:scale(1.08)}

/* ============ 4. 服务项目 ============ */
.svc-band{border-radius:var(--radius);overflow:hidden;position:relative;min-height:250px;margin-bottom:34px;
  display:flex;align-items:center;background:linear-gradient(100deg,#1668DC 0%,#123B6D 90%)}
/* 3D 主视觉：整条横幅铺满，object-position 靠右以保留画面主体 */
.svc-band-bg{position:absolute;inset:0;z-index:0}
.svc-band-bg img{width:100%;height:100%;object-fit:cover;object-position:right center;display:block}
/* 左侧压深，保证白色标题在任何画面上都读得清；右侧不遮，留给主视觉 */
.svc-band::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(90deg,rgba(8,26,52,.84) 0%,rgba(8,26,52,.6) 32%,rgba(8,26,52,.16) 57%,rgba(8,26,52,0) 76%)}
.svc-band-txt{position:relative;z-index:2;padding:52px 60px;max-width:58%}
.svc-band-txt h3{color:#fff;font-size:32px;font-weight:800;letter-spacing:2px}
.svc-band-txt p{color:rgba(255,255,255,.85);font-size:18px;letter-spacing:4px;margin-top:8px}
/* 图未上传时的提示框：整条横幅一圈虚线 */
.band-ph{position:absolute;inset:16px;z-index:1;border:1px dashed rgba(255,255,255,.34);border-radius:10px;
  display:flex;align-items:flex-end;justify-content:flex-end;padding:0 18px 12px;
  color:rgba(255,255,255,.66);font-size:12px;letter-spacing:1px;pointer-events:none;transition:opacity .4s}
/* 图片传好后自动隐藏提示框（由 js 给 .svc-band 加 has-img） */
.svc-band.has-img .band-ph{opacity:0}
.svc-grid{display:grid;grid-template-columns:repeat(9,1fr);gap:14px}
.svc{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px 8px 20px;text-align:center;
  transition:all .28s;cursor:pointer;position:relative;overflow:hidden;display:block}
.svc::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--cyan),var(--blue2));transform:scaleX(0);transform-origin:left;transition:transform .35s}
.svc:hover::before{transform:scaleX(1)}
.svc-ico{width:66px;height:66px;border-radius:50%;background:#EAF3FF;margin:0 auto;overflow:hidden;
  display:flex;align-items:center;justify-content:center;transition:all .3s}
.svc-ico img{width:38px;height:38px;object-fit:contain}
/* 内联 SVG 图标（9 个固定服务卡用） */
.svc-ico svg{width:32px;height:32px;fill:none;stroke:var(--blue2);stroke-width:1.6;
  stroke-linecap:round;stroke-linejoin:round;transition:all .3s}
.svc:hover .svc-ico svg{stroke:#fff;transform:scale(1.06)}
.svc h4{font-size:14.5px;color:var(--ink);margin-top:12px;font-weight:600;transition:color .25s;letter-spacing:.5px}
.svc:hover{background:linear-gradient(160deg,var(--blue2),var(--navy));border-color:transparent;transform:translateY(-8px);
  box-shadow:0 18px 36px rgba(18,59,109,.32)}
.svc:hover .svc-ico{background:rgba(255,255,255,.16);transform:scale(1.08)}
.svc:hover .svc-ico img{filter:brightness(3)}
.svc:hover h4{color:#fff}

/* ============ 5. 服务流程 ============ */
.flow{background:var(--bg)}
.flow-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.flow-card{background:#fff;border-radius:var(--radius);padding:34px 28px;position:relative;display:block;
  border-top:4px solid var(--blue2);box-shadow:0 8px 24px rgba(11,37,69,.06);transition:all .3s;overflow:hidden}
.flow-card::after{content:"";position:absolute;top:-4px;left:0;height:4px;width:100%;
  background:linear-gradient(90deg,var(--cyan),transparent);transform:scaleX(0);transform-origin:left;transition:transform .4s}
.flow-card:hover{transform:translateY(-8px);box-shadow:0 20px 42px rgba(11,37,69,.14)}
.flow-card:hover::after{transform:scaleX(1)}
.flow-card:nth-child(2){border-top-color:var(--cyan)}
.flow-card:nth-child(3){border-top-color:var(--navy)}
.flow-num{font-size:13px;color:var(--cyan);letter-spacing:3px;font-weight:700}
.flow-card h3{font-size:21px;color:var(--navy);margin:8px 0 20px;letter-spacing:1px}
.flow-steps li{display:flex;gap:14px;align-items:flex-start;padding:11px 10px;border-bottom:1px dashed var(--line);font-size:14.5px;
  border-radius:8px;transition:background .25s,padding-left .25s}
.flow-steps li:last-child{border-bottom:none}
.flow-card:hover .no{background:var(--blue2);color:#fff}
.flow-card:nth-child(2):hover .no{background:var(--cyan)}
.flow-card:nth-child(3):hover .no{background:var(--navy)}
.flow-card:hover li:nth-child(2) .no{transition-delay:.08s}
.flow-card:hover li:nth-child(3) .no{transition-delay:.16s}
.flow-card:hover li:nth-child(4) .no{transition-delay:.24s}
.flow-steps li:hover{background:var(--bg);padding-left:16px}
.flow-steps .no{flex:none;width:24px;height:24px;border-radius:50%;background:var(--bg);color:var(--blue2);
  font-size:12.5px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:2px;transition:all .3s}
.flow-steps b{color:var(--ink);font-weight:600}
.flow-steps span{color:var(--gray);font-size:13px;display:block}

/* ============ 6. 服务案例 ============ */
.case-tabs{display:flex;gap:30px;align-items:center;flex-wrap:wrap}
.case-tabs a{font-size:15px;color:var(--gray);padding-bottom:6px;position:relative;transition:color .2s;cursor:pointer}
.case-tabs a.on{color:var(--blue2);font-weight:700}
.case-tabs a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:2px;background:var(--cyan);
  transform:scaleX(0);transform-origin:left;transition:transform .28s}
.case-tabs a:hover::after,.case-tabs a.on::after{transform:scaleX(1)}
.case-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.case-card{background:#fff;border-radius:12px;overflow:hidden;border:1px solid var(--line);transition:all .28s;cursor:pointer;
  position:relative;display:block}
.case-card:hover{transform:translateY(-8px);box-shadow:0 20px 40px rgba(11,37,69,.18);border-color:rgba(23,184,206,.5)}
.case-img{position:relative;height:180px;overflow:hidden;background:linear-gradient(135deg,#DDE9F8,#F0F5FC);
  transition:transform .45s ease}
.case-img img{width:100%;height:100%;object-fit:cover}
.case-img::after{content:"查看详情 →";position:absolute;left:0;right:0;bottom:0;z-index:2;
  background:linear-gradient(0deg,rgba(11,37,69,.88),transparent);color:#fff;font-size:13px;letter-spacing:2px;
  padding:30px 14px 12px;opacity:0;transform:translateY(10px);transition:all .3s}
.case-card:hover .case-img{transform:scale(1.04)}
.case-card:hover .case-img::after{opacity:1;transform:none}
.case-card h4{font-size:14.5px;color:var(--ink);padding:16px 16px 18px;font-weight:600;line-height:1.55;min-height:78px}
.case-cat{display:block;font-size:11.5px;color:var(--cyan);letter-spacing:1.5px;font-weight:700;margin-bottom:5px}
.case-card.hide{display:none}
.case-empty{grid-column:1/-1;text-align:center;color:var(--gray);font-size:14px;padding:40px 0;letter-spacing:1px}

/* ============ 7. 新闻中心 ============ */
.news{background:var(--bg)}
.news-list{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.news-item{display:flex;gap:22px;background:#fff;border-radius:12px;padding:24px 26px;align-items:center;
  border:1px solid var(--line);transition:all .28s;cursor:pointer;position:relative;overflow:hidden}
.news-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,var(--blue2),var(--cyan));transform:scaleY(0);transform-origin:top;transition:transform .35s}
.news-item:hover{transform:translateY(-5px);box-shadow:0 16px 34px rgba(11,37,69,.14)}
.news-item:hover::before{transform:scaleY(1)}
.news-item:hover .news-date b{color:var(--blue2)}
.news-date{flex:none;text-align:center;padding-right:20px;border-right:1px solid var(--line);position:relative;min-width:76px}
.news-date b{display:block;font-size:26px;color:var(--navy);font-weight:800;transition:color .25s}
.news-date span{font-size:12px;color:var(--gray)}
.news-date::after{content:"";position:absolute;right:-1px;top:0;width:3px;height:26px;background:var(--cyan)}
.news-thumb{flex:none;width:128px;height:86px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#DDE9F8,#F0F5FC)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-item:hover .news-thumb img{transform:scale(1.08)}
.news-body{flex:1;min-width:0}
.news-body h4{font-size:15.5px;color:var(--ink);font-weight:700;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{font-size:12px;color:#9AA8B8;margin:5px 0 4px}
.news-body p{font-size:13px;color:var(--gray);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-go{flex:none;font-size:12px;color:var(--gray);border:1px solid var(--line);border-radius:30px;padding:7px 18px;
  letter-spacing:1px;transition:all .2s;white-space:nowrap}
.news-item:hover .news-go{background:var(--cyan);border-color:var(--cyan);color:#fff}

/* ============ 7.5 全球布局 ============ */
.global{padding:0;line-height:0}
.global img{width:100%;display:block}

/* ============ 8. 页脚 ============ */
footer{background:linear-gradient(180deg,var(--blue) 0%,var(--navy) 100%);color:rgba(255,255,255,.82);padding:64px 0 0}
/* 品牌区 + 右侧栏目区（右侧再分三列，栏目多于 3 个时自动换行且左对齐） */
.foot-grid{display:grid;grid-template-columns:1.5fr 3fr;gap:36px}
.foot-navs{display:grid;grid-template-columns:repeat(3,1fr);gap:36px}
.foot-brand .logo-img{height:48px}
.foot-slogan{color:var(--cyan);letter-spacing:3px;font-size:14px;margin:12px 0 22px}
.foot-info{font-size:13.5px;line-height:2.1}
.foot-info b{color:#fff;font-weight:600}
.socials{display:flex;gap:14px;margin-top:22px}
.soc{position:relative;width:44px;height:44px;border-radius:10px;background:rgba(255,255,255,.10);
  display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .2s}
.soc:hover{background:var(--cyan)}
.soc svg{width:22px;height:22px;fill:#fff}
.soc i{position:absolute;bottom:52px;left:50%;transform:translateX(-50%) scale(.9);width:118px;height:118px;
  background:#fff;border-radius:10px;box-shadow:0 12px 30px rgba(0,0,0,.3);opacity:0;visibility:hidden;transition:all .22s;
  display:flex;align-items:center;justify-content:center;font-style:normal;color:var(--gray);font-size:12px;text-align:center;line-height:1.6;padding:8px;overflow:hidden}
.soc i img{width:100%;height:100%;object-fit:contain}
.soc:hover i{opacity:1;visibility:visible;transform:translateX(-50%) scale(1)}
.foot-col h5{color:#fff;font-size:15px;letter-spacing:2px;margin-bottom:16px;font-weight:700}
.foot-col h5 a{color:#fff}
.foot-col a{display:block;font-size:13.5px;color:rgba(255,255,255,.66);padding:5px 0;transition:color .2s,padding-left .2s}
.foot-col a:hover{color:var(--cyan);padding-left:6px}
.copy{border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding:18px 0;text-align:center;
  font-size:12.5px;color:rgba(255,255,255,.45);letter-spacing:.5px}
.copy a{color:rgba(255,255,255,.55)}
.copy a:hover{color:var(--cyan)}

/* ============ 9. 回到顶部 ============ */
.toTop{position:fixed;right:28px;bottom:32px;z-index:99;width:48px;height:48px;border-radius:50%;
  background:linear-gradient(135deg,var(--blue2),var(--navy));color:#fff;border:none;cursor:pointer;
  box-shadow:0 10px 24px rgba(11,37,69,.35);opacity:0;visibility:hidden;transform:translateY(14px);transition:all .3s}
.toTop.show{opacity:1;visibility:visible;transform:none}
.toTop:hover{background:var(--cyan)}
.toTop svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:2.4;stroke-linecap:round;margin:0 auto;display:block}

/* ============ 10. 滚动入场动效 ============ */
.reveal{opacity:0;transform:translateY(36px);transition:opacity .7s ease,transform .7s cubic-bezier(.22,.8,.36,1)}
.reveal.in{opacity:1;transform:none}

/* ============ 11. 移动端适配 ============ */
@media(max-width:1080px){
  .menu,.lang{display:none}
  .menu-btn{display:flex}
  /* 移动端菜单：从导航下方展开 */
  .menu{position:absolute;top:78px;left:0;right:0;background:rgba(9,29,55,.98);flex-direction:column;
    padding:6px 0 14px;max-height:calc(100vh - 78px);overflow-y:auto;box-shadow:0 18px 40px rgba(0,0,0,.35)}
  body.nav-open .menu{display:flex}
  .menu>li{border-bottom:1px solid rgba(255,255,255,.07)}
  .menu>li>a{height:auto;line-height:1.5;padding:13px 24px;font-size:15px}
  .menu>li>a::after{display:none}
  .sub{position:static;transform:none;opacity:1;visibility:visible;box-shadow:none;background:rgba(255,255,255,.05);
    border-top:none;border-radius:0;padding:0;min-width:0}
  .sub a{color:rgba(255,255,255,.78);padding:9px 24px 9px 40px;font-size:14px}
  .hero{height:440px}
  .hero-title{font-size:29px;letter-spacing:2px}
  .hero-sub{font-size:14px}
  .hero-kicker{font-size:12px;letter-spacing:4px}
  section{padding:56px 0}
  .about-grid{grid-template-columns:1fr;gap:30px}
  .about-video,.about-video video{min-height:230px}
  .stats{gap:18px;flex-wrap:wrap}
  .stat{min-width:calc(33% - 12px);text-align:left}
  .stat b{font-size:30px}
  .culture{flex-direction:column}
  .culture-photo{flex:none;height:220px;min-height:0;background-position:center}
  .culture-body{padding:36px 28px;gap:26px}
  .svc-band{min-height:220px}
  .svc-band-txt{padding:34px 28px;max-width:100%}
  .svc-band-txt h3{font-size:24px}
  .svc-band::after{background:linear-gradient(90deg,rgba(8,26,52,.92) 0%,rgba(8,26,52,.8) 55%,rgba(8,26,52,.5) 100%)}
  .svc-band-bg img{object-position:68% center}
  .band-ph{inset:10px}
  .sec-more{margin-top:28px;justify-content:center}
  .svc-grid{grid-template-columns:repeat(3,1fr);gap:12px}
  .flow-grid{grid-template-columns:1fr}
  .case-tabs{gap:18px}
  .case-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .news-list{grid-template-columns:1fr}
  .news-item{padding:18px 16px;gap:14px}
  .news-thumb{width:96px;height:70px}
  .foot-grid{grid-template-columns:1fr;gap:32px}
  .foot-navs{grid-template-columns:repeat(3,1fr);gap:26px 18px}
  .hero-nav{width:46px;height:46px;bottom:38px}
  .wrap{padding:0 20px}
}
@media(max-width:640px){
  .logo-img{height:34px}
  .hero{height:400px;margin-top:78px}
  .hero-btn{padding:11px 26px;font-size:13.5px}
  .hero-nav{width:42px;height:42px;bottom:26px}
  .hero-nav.prev{left:14px}
  .hero-nav.next{right:14px}
  /* 手机窄屏：主标题缩一号，保证一行放得下不折行 */
  .hero-title{font-size:23px;letter-spacing:.5px}
  .hero-sub{font-size:13px;margin-top:12px;line-height:1.65}
  .sec-title{font-size:24px}
  .stat{min-width:calc(50% - 9px)}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:1fr}
  .case-card h4{min-height:0}
  .news-date{display:none}
  .news-go{display:none}
  .foot-grid{grid-template-columns:1fr}
  .foot-navs{grid-template-columns:repeat(2,1fr);gap:24px 16px}
  .toTop{right:16px;bottom:20px;width:42px;height:42px}
}