/* ===========================================================
   凯贺威 KAIHUI 升降台 — 官网首页样式
   主色：橘红 #E16D32 / 灰 #4A4A4A
   =========================================================== */

:root{
  --orange:#e16d32;
  --orange-d:#c85a22;
  --orange-l:#f1874f;
  --grey-9:#2b2b2b;
  --grey-8:#3a3a3a;
  --grey-7:#4a4a4a;
  --grey-6:#5f5f5f;
  --grey-5:#767676;
  --grey-4:#8e8e8e;
  --grey-3:#b8b8b8;
  --grey-2:#dcdcdc;
  --grey-1:#efefef;
  --grey-0:#f6f6f6;
  --white:#fff;
  --maxw:1280px;
  --radius:4px;
  --shadow:0 8px 30px rgba(0,0,0,.09);
  --shadow-l:0 16px 50px rgba(0,0,0,.16);
  /* 轮播箭头 chevron，viewBox 24 内居中对称 */
  --chev-left:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M15.5 4.6 7.1 12l8.4 7.4 1.5-1.7L9.9 12l7.1-6-1.5-1.4z'/%3E%3C/svg%3E");
  --chev-right:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M8.5 4.6 7 6l7.1 6-7.1 6 1.5 1.4 8.4-7.4L8.5 4.6z'/%3E%3C/svg%3E");
}

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

html{scroll-behavior:smooth;scroll-padding-top:96px}

body{
  font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  font-size:15px;line-height:1.8;color:var(--grey-7);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:color .25s}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------------- 图标（纯CSS绘制，无外部依赖） ---------------- */
[class^="ico-"]{
  display:inline-block;width:1em;height:1em;flex:0 0 auto;
  background:currentColor;
  -webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;
  -webkit-mask-position:center;mask-position:center;
  -webkit-mask-size:contain;mask-size:contain;
  -webkit-mask-image:var(--m);mask-image:var(--m);
  vertical-align:-.12em;
}
.ico-phone{--m:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6.6 10.8a15 15 0 0 0 6.6 6.6l2.2-2.2c.3-.3.7-.4 1-.2 1.2.4 2.4.6 3.6.6.6 0 1 .4 1 1V20c0 .6-.4 1-1 1C10.6 21 3 13.4 3 4c0-.6.4-1 1-1h3.5c.6 0 1 .4 1 1 0 1.3.2 2.5.6 3.6.1.4 0 .8-.2 1l-2.3 2.2z'/%3E%3C/svg%3E")}
.ico-mail{--m:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 5h18c.6 0 1 .4 1 1v12c0 .6-.4 1-1 1H3c-.6 0-1-.4-1-1V6c0-.6.4-1 1-1zm9 8L4.2 7.5v.3L12 12.8l7.8-5v-.3L12 13z'/%3E%3C/svg%3E")}
.ico-loc{--m:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2a7 7 0 0 0-7 7c0 5 7 13 7 13s7-8 7-13a7 7 0 0 0-7-7zm0 9.5A2.5 2.5 0 1 1 12 6.5a2.5 2.5 0 0 1 0 5z'/%3E%3C/svg%3E")}
.ico-globe{--m:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2a10 10 0 1 0 0 20 10 10 0 0 0 0-20zm6.9 6h-2.9a15 15 0 0 0-1.4-3.7A8 8 0 0 1 18.9 8zM12 4.2c.7 1 1.4 2.4 1.8 3.8h-3.6c.4-1.4 1.1-2.8 1.8-3.8zM4.3 14A8 8 0 0 1 4 12c0-.7.1-1.4.3-2h3.3a18 18 0 0 0 0 4H4.3zm.8 2h2.9c.3 1.4.8 2.6 1.4 3.7A8 8 0 0 1 5.1 16zm2.9-8H5.1a8 8 0 0 1 4.3-3.7A15 15 0 0 0 8 8zM12 19.8c-.7-1-1.4-2.4-1.8-3.8h3.6c-.4 1.4-1.1 2.8-1.8 3.8zm2.2-5.8H9.8a15 15 0 0 1 0-4h4.4a15 15 0 0 1 0 4zm.3 5.7c.6-1.1 1.1-2.3 1.4-3.7h2.9a8 8 0 0 1-4.3 3.7zM16.4 14a18 18 0 0 0 0-4h3.3c.2.6.3 1.3.3 2s-.1 1.4-.3 2h-3.3z'/%3E%3C/svg%3E")}
.ico-zip{--m:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 2h9l5 5v15H5V2zm8 1.5V8h4.5L13 3.5zM8 12h8v1.6H8V12zm0 3.2h8v1.6H8v-1.6zm0-6.4h8v1.6H8V8.8z'/%3E%3C/svg%3E")}
.ico-arrow{--m:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M4 11h11.2l-4.6-4.6L12 5l7 7-7 7-1.4-1.4 4.6-4.6H4v-2z'/%3E%3C/svg%3E")}
.ico-arrow-l{--m:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M15.4 5 14 3.6 5.6 12 14 20.4l1.4-1.4L8.4 12l7-7z'/%3E%3C/svg%3E")}
.ico-arrow-r{--m:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M8.6 5 10 3.6 18.4 12 10 20.4 8.6 19l7-7-7-7z'/%3E%3C/svg%3E")}
.ico-shield{--m:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2 4 5v6.5c0 5 3.4 9.6 8 10.5 4.6-.9 8-5.5 8-10.5V5l-8-3zm0 2.2 6 2.2v5.1c0 3.9-2.5 7.6-6 8.4-3.5-.8-6-4.5-6-8.4V6.4l6-2.2z'/%3E%3C/svg%3E")}
.ico-gear{--m:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 8a4 4 0 1 0 0 8 4 4 0 0 0 0-8zm9 4c0-.6-.1-1.2-.2-1.8l2-1.5-2-3.5-2.3 1a8 8 0 0 0-3-1.8L15 1.6H9l-.4 2.8a8 8 0 0 0-3 1.8l-2.4-1-2 3.5 2 1.5a8.6 8.6 0 0 0 0 3.6l-2 1.5 2 3.5 2.3-1a8 8 0 0 0 3 1.8l.5 2.8h6l.4-2.8a8 8 0 0 0 3-1.8l2.4 1 2-3.5-2-1.5c.1-.6.2-1.2.2-1.8z'/%3E%3C/svg%3E")}
.ico-service{--m:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 1.5a9.5 9.5 0 0 0-9.5 9.5c0 6.3 9.5 12.5 9.5 12.5s9.5-6.2 9.5-12.5A9.5 9.5 0 0 0 12 1.5zm0 13a3.5 3.5 0 1 1 0-7 3.5 3.5 0 0 1 0 7z'/%3E%3C/svg%3E")}

/* ---------------- 顶部信息条 ---------------- */
.topbar{background:var(--grey-9);color:var(--grey-3);font-size:13px}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;height:38px}
.topbar-left{display:flex;align-items:center;gap:18px}
.tb-item{display:inline-flex;align-items:center;gap:6px}
.tb-item .ico-phone,.tb-item .ico-mail{font-size:14px;color:var(--orange)}

/* ---------------- 头部导航 ---------------- */
.header{position:sticky;top:0;z-index:100;background:#fff;box-shadow:0 1px 0 var(--grey-2)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:82px}
.brand{display:flex;align-items:center;gap:14px;flex-shrink:0}
.brand-logo{width:auto;height:46px}
.brand-text{display:flex;align-items:center;height:46px;line-height:1}
.brand-text em{font-style:normal;font-size:20px;font-weight:700;color:var(--grey-9);letter-spacing:.5px;white-space:nowrap}

.nav ul{display:flex;gap:4px}
.nav a{
  position:relative;display:block;padding:0 18px;height:82px;line-height:82px;
  font-size:15.5px;color:var(--grey-7);transition:color .25s;white-space:nowrap;
}
.nav a::after{
  content:"";position:absolute;left:18px;right:18px;bottom:22px;height:2.5px;
  background:var(--orange);transform:scaleX(0);transform-origin:left;transition:transform .3s;
}
.nav a:hover,.nav a.active{color:var(--orange)}
.nav a:hover::after,.nav a.active::after{transform:scaleX(1)}

.nav-toggle{display:none;flex-direction:column;gap:5px;padding:8px}
.nav-toggle span{display:block;width:24px;height:2.5px;background:var(--grey-8);transition:.3s}

/* ---------------- 按钮 ---------------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:13px 34px;border-radius:var(--radius);
  font-size:15px;font-weight:500;transition:all .3s;white-space:nowrap;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 18px rgba(225,109,50,.32)}
.btn-primary:hover{background:var(--orange-d);transform:translateY(-2px);box-shadow:0 10px 24px rgba(225,109,50,.42)}
.btn-primary .ico-arrow{font-size:13px}

/* ---------------- 轮播图（满屏一屏） ---------------- */
/* 首屏 = 顶部信息条 38px + 导航 82px + 轮播，保证整屏不出现纵向滚动条 */
.hero{position:relative;height:calc(100vh - 120px);min-height:500px;overflow:hidden;background:var(--grey-9)}
.hero-slider{position:absolute;inset:0}
.hero-item{
  position:absolute;inset:0;opacity:0;visibility:hidden;
  background-size:cover;background-position:center center;background-repeat:no-repeat;
  transition:opacity 1s ease,visibility 1s;
}
.hero-item.is-active{opacity:1;visibility:visible}
.hero-item::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(18,18,18,.9) 0%,rgba(18,18,18,.74) 38%,rgba(18,18,18,.42) 66%,rgba(18,18,18,.16) 100%),
    linear-gradient(0deg,rgba(18,18,18,.5) 0%,rgba(18,18,18,0) 45%);
}
.hero-content{position:relative;z-index:2;padding-top:6vh;max-width:760px}
.hero-item.is-active .hero-content>*{animation:heroIn .8s cubic-bezier(.22,.68,.32,1) both}
.hero-item.is-active .hero-tag{animation-delay:.08s}
.hero-item.is-active .hero-title{animation-delay:.18s}
.hero-item.is-active .hero-desc{animation-delay:.28s}
@keyframes heroIn{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}

.hero-tag{
  display:inline-block;padding:6px 16px;border-left:3px solid var(--orange);
  background:rgba(225,109,50,.16);color:var(--orange-l);
  font-size:13.5px;letter-spacing:2px;margin-bottom:22px;
}
.hero-title{font-size:46px;line-height:1.28;font-weight:700;color:#fff;margin-bottom:20px;letter-spacing:1px;text-shadow:0 2px 10px rgba(0,0,0,.4)}
.hero-title span{display:block;margin-top:14px;font-size:19px;font-weight:400;color:rgba(255,255,255,.92);letter-spacing:.5px}
.hero-desc{font-size:15.5px;color:rgba(255,255,255,.85);max-width:640px;margin-bottom:34px;text-shadow:0 1px 4px rgba(0,0,0,.45)}

/* 视频轮播 */
.hero-video-item{background:none}
.hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-shade{position:absolute;inset:0;background:linear-gradient(100deg,rgba(18,18,18,.88) 0%,rgba(18,18,18,.7) 38%,rgba(18,18,18,.4) 66%,rgba(18,18,18,.14) 100%)}

/* 轮播控件 */
.hero-arrow{
  position:absolute;top:50%;z-index:5;
  width:52px;height:52px;border-radius:50%;background:rgba(255,255,255,.13);
  border:1px solid rgba(255,255,255,.28);transition:all .3s;
}
.hero-arrow.prev{left:34px;transform:translateY(-50%)}
.hero-arrow.next{right:34px;transform:translateY(-50%)}
/* 用 SVG chevron 居中，避免边框旋转造成的偏移 */
.hero-arrow::before{
  content:"";position:absolute;top:50%;left:50%;width:16px;height:16px;
  transform:translate(-50%,-50%);
  background:#fff;
  -webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;
  -webkit-mask-position:center;mask-position:center;
  -webkit-mask-size:100% 100%;mask-size:100% 100%;
}
.hero-arrow.prev::before{
  -webkit-mask-image:var(--chev-left);mask-image:var(--chev-left);
}
.hero-arrow.next::before{
  -webkit-mask-image:var(--chev-right);mask-image:var(--chev-right);
}
.hero-arrow:hover{background:var(--orange);border-color:var(--orange)}
.hero-arrow:hover::before{background:#fff}
.hero-arrow.prev:hover{transform:translateY(-50%) translateX(-4px)}
.hero-arrow.next:hover{transform:translateY(-50%) translateX(4px)}

.hero-dots{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);z-index:5;display:flex;gap:11px}
.hero-dots button{
  width:34px;height:4px;border-radius:3px;background:rgba(255,255,255,.35);transition:all .3s;
}
.hero-dots button.is-active{background:var(--orange);width:50px}

/* ---------------- 数据条 ---------------- */
.stats{background:var(--grey-8);padding:38px 0}
.stats-inner{display:grid;grid-template-columns:repeat(4,1fr)}
.stat-item{text-align:center;position:relative;padding:6px 0}
.stat-item+.stat-item::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:1px;height:46px;background:rgba(255,255,255,.12)}
.stat-item b{display:block;font-size:40px;font-weight:700;color:var(--orange);line-height:1.1;font-family:"DIN Alternate",Impact,sans-serif}
.stat-item span{font-size:14px;color:var(--grey-3);letter-spacing:1px}

/* ---------------- 通用板块 ---------------- */
.section{padding:96px 0}
.eyebrow{font-size:13px;letter-spacing:3px;color:var(--orange);font-weight:600;margin-bottom:10px}
.eyebrow.center{text-align:center}
.section-title{font-size:34px;font-weight:700;color:var(--grey-9);line-height:1.35;letter-spacing:.5px}
.section-title.center{text-align:center;margin-bottom:44px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:46px}
.more-link{font-size:14.5px;color:var(--grey-6);display:inline-flex;align-items:center;gap:7px;padding-bottom:4px;border-bottom:1px solid var(--grey-2);transition:.25s}
.more-link .ico-arrow{font-size:12px}
.more-link:hover{color:var(--orange);border-color:var(--orange)}

/* ---------------- 公司简介 ---------------- */
.about{background:var(--grey-0)}
.about-grid{display:grid;grid-template-columns:1fr 1.06fr;gap:66px;align-items:center}
.about-visual{position:relative}
.about-visual>img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow-l)}
.about-badge{
  position:absolute;right:-24px;bottom:32px;background:var(--orange);color:#fff;
  padding:20px 26px;border-radius:var(--radius);box-shadow:var(--shadow-l);text-align:center;
}
.about-badge b{display:block;font-size:26px;font-weight:700;line-height:1.2}
.about-badge span{font-size:12.5px;opacity:.92}

.about-text{font-size:15.5px;color:var(--grey-6);margin:20px 0 30px;line-height:1.95}
/* 仅显示 5 行，超出省略 */
.clamped{
  display:-webkit-box;
  -webkit-box-orient:vertical;
  -webkit-line-clamp:5;
  line-clamp:5;
  overflow:hidden;
}
.about-points{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:34px}
.point{display:flex;gap:12px;align-items:flex-start;background:var(--white);padding:16px 14px;border-radius:var(--radius);border:1px solid var(--grey-1)}
.point .ico-shield{font-size:24px;color:var(--orange);margin-top:2px}
.point h4{font-size:15px;color:var(--grey-9);margin-bottom:2px}
.point p{font-size:12.5px;color:var(--grey-5);line-height:1.6}
.more-btn{padding:12px 28px}

/* ---------------- 行业资讯 ---------------- */
.news{background:var(--white)}
.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}
.news-item{
  display:flex;gap:20px;background:var(--white);border:1px solid var(--grey-1);
  border-radius:var(--radius);overflow:hidden;transition:all .35s;
}
.news-item:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:transparent}
.news-thumb{flex:0 0 208px;overflow:hidden}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.news-item:hover .news-thumb img{transform:scale(1.07)}
.news-content{padding:18px 20px 18px 0;display:flex;flex-direction:column}
.news-meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--grey-4);margin-bottom:9px}
.news-content h3{font-size:16.5px;line-height:1.55;color:var(--grey-9);font-weight:600;margin-bottom:8px}
.news-content h3 a:hover{color:var(--orange)}
.news-content p{font-size:13.5px;color:var(--grey-5);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------------- 设备展示（滚动切换） ---------------- */
.equipment{background:var(--grey-0);overflow:hidden}
.eq-controls{display:flex;gap:10px}
.eq-btn{
  width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--grey-2);
  display:flex;align-items:center;justify-content:center;transition:.28s;
}
.eq-btn .ico-arrow-l,.eq-btn .ico-arrow-r{font-size:15px;color:var(--grey-7)}
.eq-btn:hover{background:var(--orange);border-color:var(--orange)}
.eq-btn:hover .ico-arrow-l,.eq-btn:hover .ico-arrow-r{color:#fff}
.eq-btn:disabled{opacity:.4;cursor:not-allowed;background:#fff;border-color:var(--grey-2)}
.eq-btn:disabled:hover .ico-arrow-l,.eq-btn:disabled:hover .ico-arrow-r{color:var(--grey-7)}

.eq-viewport{overflow:hidden;margin:0 -24px;padding:0 24px}
.eq-track{
  display:flex;gap:26px;transition:transform .65s cubic-bezier(.22,.68,.32,1);
  will-change:transform;
}
.eq-card{
  flex:0 0 calc((100% - 52px)/3);background:#fff;border-radius:var(--radius);
  overflow:hidden;box-shadow:0 4px 18px rgba(0,0,0,.05);transition:box-shadow .35s,transform .35s;
  cursor:pointer;
}
.eq-card:hover{box-shadow:var(--shadow-l);transform:translateY(-6px)}
.eq-media{position:relative;overflow:hidden;background:var(--grey-1)}
.eq-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .6s}
.eq-card:hover .eq-media img{transform:scale(1.06)}
.eq-media::after{
  content:"查看详情";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.85);
  background:var(--orange);color:#fff;font-size:13.5px;padding:8px 20px;border-radius:2px;
  opacity:0;transition:.35s;white-space:nowrap;
}
.eq-card:hover .eq-media::after{opacity:1;transform:translate(-50%,-50%) scale(1)}
.eq-info{padding:18px 20px 22px}
.eq-info h3{font-size:17px;color:var(--grey-9);margin-bottom:7px;transition:color .25s}
.eq-card:hover .eq-info h3{color:var(--orange)}
.eq-info p{font-size:13.5px;color:var(--grey-5);line-height:1.75}

/* ---------------- 合作伙伴 ---------------- */
.partners{background:var(--white);padding:80px 0}
.partner-row{display:flex;flex-wrap:wrap;justify-content:center;gap:22px;margin-bottom:26px}
.partner-row:last-child{margin-bottom:0}
.partner-item{
  flex:0 0 auto;height:70px;padding:0 22px;background:var(--grey-0);border-radius:var(--radius);
  display:flex;align-items:center;justify-content:center;transition:.3s;
}
.partner-item:hover{background:var(--white);box-shadow:var(--shadow)}
.partner-item img{max-height:52px;width:auto}
.partner-row.users .partner-item{height:62px;padding:0 18px}
.partner-row.users .partner-item img{max-height:44px}

/* ---------------- 视频展示 ---------------- */
.videos{background:var(--grey-9);color:#fff}
.videos .section-title{color:#fff}
.videos .eyebrow{color:var(--orange-l)}
.videos .more-link{color:var(--grey-3);border-color:rgba(255,255,255,.2)}
.videos .more-link:hover{color:var(--orange);border-color:var(--orange)}
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.vcard{position:relative;overflow:hidden;border-radius:var(--radius);cursor:pointer;background:#000;aspect-ratio:16/10}
.vcard video{width:100%;height:100%;object-fit:cover;display:block}
.vcard::after{
  content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.78) 0%,transparent 52%);
  transition:background .35s;
}
.vcard:hover::after{background:linear-gradient(0deg,rgba(225,109,50,.62) 0%,rgba(0,0,0,.2) 60%)}
.vtitle{
  position:absolute;left:16px;right:16px;bottom:14px;z-index:2;font-size:14.5px;
  color:#fff;font-weight:500;transform:translateY(6px);opacity:.94;transition:.35s;
}
.vcard:hover .vtitle{transform:none;color:#fff}
.vcard::before{
  content:"";position:absolute;left:50%;top:50%;z-index:2;transform:translate(-50%,-50%);
  width:52px;height:52px;border-radius:50%;background:rgba(225,109,50,.92);
  transition:.35s;
}
.vcard:hover::before{transform:translate(-50%,-50%) scale(1.12)}
.vcard .play-ico{
  position:absolute;left:50%;top:50%;z-index:3;transform:translate(-50%,-50%);
  width:0;height:0;border-left:15px solid #fff;border-top:9px solid transparent;border-bottom:9px solid transparent;
  margin-left:3px;transition:.35s;
}
.vcard:hover .play-ico{transform:translate(-50%,-50%) scale(1.12);margin-left:3px}

/* ---------------- 售后服务 + 联系我们 ---------------- */
.service{background:var(--grey-0)}
.service-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center}
.service-text{font-size:15px;color:var(--grey-6);margin:20px 0 30px;line-height:1.95}
.service-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-bottom:34px}
.service-list li{background:#fff;border-left:3px solid var(--orange);padding:15px 18px;border-radius:0 var(--radius) var(--radius) 0}
.service-list b{display:block;font-size:15px;color:var(--grey-9);margin-bottom:3px}
.service-list span{font-size:13px;color:var(--grey-5);line-height:1.65}

.contact-card{
  background:var(--grey-8);border-radius:var(--radius);padding:42px 38px;color:#fff;
  box-shadow:var(--shadow-l);position:relative;overflow:hidden;
}
.contact-card::before{content:"";position:absolute;right:-50px;top:-50px;width:190px;height:190px;border-radius:50%;background:rgba(225,109,50,.12)}
.cc-title{font-size:24px;font-weight:700;margin-bottom:26px;position:relative}
.cc-list li{display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed rgba(255,255,255,.14);position:relative}
.cc-list li:last-child{border-bottom:0}
.cc-list .ico-phone,.cc-list .ico-mail,.cc-list .ico-loc,.cc-list .ico-globe,.cc-list .ico-zip{font-size:19px;color:var(--orange);margin-top:4px}
.cc-list b{display:block;font-size:13px;color:var(--grey-4);font-weight:400;margin-bottom:2px}
.cc-list span{font-size:15px;color:#fff;word-break:break-all}

/* ---------------- 底部 ---------------- */
.footer{background:var(--grey-9);color:var(--grey-3)}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;gap:44px;padding:62px 24px 48px}
.footer-brand img{height:52px;margin-bottom:18px}
.footer-brand p{font-size:14px;color:var(--grey-2);margin-bottom:4px}
.footer-brand .fb-en{font-size:12px;color:var(--grey-5)}
.footer-col h4{font-size:16px;color:#fff;margin-bottom:20px;position:relative;padding-bottom:12px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:30px;height:2px;background:var(--orange)}
.footer-col ul li{margin-bottom:10px;font-size:13.5px}
.footer-col ul li a:hover{color:var(--orange)}
.footer-contact p{display:flex;gap:10px;font-size:13.5px;margin-bottom:12px;line-height:1.7}
.footer-contact .ico-phone,.footer-contact .ico-mail,.footer-contact .ico-loc{font-size:16px;color:var(--orange);margin-top:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0}
.footer-bottom .container{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.footer-bottom p{font-size:12.5px;color:var(--grey-5)}
.footer-bottom .standards{color:var(--grey-6)}

/* ---------------- 滚动出现动画 ---------------- */
.will-reveal{opacity:0;transform:translateY(34px);transition:opacity .7s ease,transform .7s cubic-bezier(.22,.68,.32,1)}
.will-reveal.is-revealed{opacity:1;transform:none}
.news-item:nth-child(2),.eq-card:nth-child(2),.partner-item:nth-child(2),.vcard:nth-child(2){transition-delay:.08s}
.news-item:nth-child(3),.eq-card:nth-child(3),.partner-item:nth-child(3),.vcard:nth-child(3){transition-delay:.16s}
.news-item:nth-child(4),.eq-card:nth-child(4),.partner-item:nth-child(4),.vcard:nth-child(4){transition-delay:.24s}
@media (prefers-reduced-motion:reduce){
  .will-reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ---------------- 响应式 ---------------- */
@media (max-width:1200px){
  .nav a{padding:0 12px;font-size:14.5px}
  .nav a::after{left:12px;right:12px}
  .about-grid{gap:44px}
  .footer-top{gap:30px}
}
@media (max-width:1024px){
  .hero-title{font-size:36px}
  .hero-title span{font-size:17px}
  .about-grid,.service-grid{grid-template-columns:1fr;gap:44px}
  .about-visual{max-width:620px}
  .news-list{grid-template-columns:1fr}
  .eq-card{flex-basis:calc((100% - 26px)/2)}
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr;gap:36px}
  .stats-inner{grid-template-columns:repeat(2,1fr);gap:24px}
  .stat-item+.stat-item::before{display:none}
}
@media (max-width:768px){
  .topbar-left .tb-item:nth-child(2){display:none}
  .header-inner{height:68px}
  .brand-logo{height:38px}
  .brand-text{height:38px}
  .brand-text em{font-size:15px;letter-spacing:0}
  .nav-toggle{display:flex}
  .nav{
    position:absolute;top:100%;left:0;right:0;background:#fff;
    max-height:0;overflow:hidden;transition:max-height .4s;box-shadow:0 8px 20px rgba(0,0,0,.1);
  }
  .nav.open{max-height:440px}
  .nav ul{flex-direction:column;padding:8px 0}
  .nav a{height:auto;line-height:1.6;padding:13px 24px}
  .nav a::after{display:none}
  .nav a.active{background:rgba(225,109,50,.08)}
  .hero{height:calc(100vh - 106px);min-height:460px}
  .hero-content{padding-top:4vh}
  .hero-title{font-size:27px}
  .hero-title span{font-size:15px;margin-top:10px}
  .hero-desc{font-size:14px;margin-bottom:26px}
  .btn{padding:11px 26px;font-size:14px}
  .hero-arrow{width:40px;height:40px}
  .hero-dots{bottom:22px}
  .section{padding:62px 0}
  .section-title{font-size:26px}
  .section-head{margin-bottom:30px;flex-direction:column;align-items:flex-start;gap:12px}
  .about-points{grid-template-columns:1fr}
  .news-item{flex-direction:column}
  .news-thumb{flex:0 0 auto;height:190px}
  .news-content{padding:16px 18px 20px}
  .eq-card{flex-basis:100%}
  .service-list{grid-template-columns:1fr}
  .contact-card{padding:32px 24px}
  .video-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr;gap:30px;padding:46px 24px 36px}
  .footer-bottom .container{flex-direction:column;text-align:center}
  .stats-inner{gap:18px}
  .stat-item b{font-size:30px}
}

/* ---------- 首页资讯：整卡可点击进入详情 ---------- */
.news-item{position:relative;cursor:pointer}
.news-thumb::after{content:"";position:absolute;inset:0;z-index:2}