:root{
  --blue:#2290df;
  --blue-hi:#4aa3e5;
  --blue-deep:#1a7cc4;
  --nav-bg:rgba(8,34,64,.92);
  --footer-bg:#06213f;
  --band:#f2f2f2;
  --ink:#333;
  --ink-2:#666;
  --ink-3:#999;
  --line:#e6e6e6;
  --container:1140px;
  --pad:15px;
  --topbar-h:40px;
  --nav-h:56px;
  --gap:30px;
  --sec-pad:70px;
  --ease:cubic-bezier(.25,.46,.45,.94);
  --safe-l:env(safe-area-inset-left,0px);
  --safe-r:env(safe-area-inset-right,0px);
  --safe-b:env(safe-area-inset-bottom,0px);
}

*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none !important}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font:14px/1.8 "Microsoft YaHei","PingFang SC","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;color:var(--ink);background:#fff;-webkit-font-smoothing:antialiased;overflow-x:hidden;-webkit-tap-highlight-color:transparent}
h1,h2,h3,h4,h5,p,ul,figure{margin:0;padding:0}
ul{list-style:none}
img{max-width:100%;display:block;border:0}
picture{display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;border:0;background:none;cursor:pointer;color:inherit}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:max(var(--pad),var(--safe-l));padding-right:max(var(--pad),var(--safe-r))}

.topbar{height:var(--topbar-h);background:rgba(255,255,255,.08);color:rgba(255,255,255,.85);font-size:13px;position:relative;z-index:60}
.topbar__inner{display:flex;align-items:center;gap:34px;height:100%;overflow:hidden}
.topbar__item{display:inline-flex;align-items:center;height:100%;gap:7px;white-space:nowrap;transition:color .25s var(--ease)}

.ico{width:13px;height:13px;flex:0 0 13px;display:block;background:var(--blue);-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;-webkit-mask-position:center;mask-position:center;-webkit-mask-size:contain;mask-size:contain}
.ico--mail{-webkit-mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path d='M1 3h14v10H1z' fill='none' stroke='black' stroke-width='1.4'/><path d='M1.6 3.6 8 8.6l6.4-5' fill='none' stroke='black' stroke-width='1.4'/></svg>");mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path d='M1 3h14v10H1z' fill='none' stroke='black' stroke-width='1.4'/><path d='M1.6 3.6 8 8.6l6.4-5' fill='none' stroke='black' stroke-width='1.4'/></svg>")}
.ico--phone{-webkit-mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path d='M3 2.5c-1 1-1 2.5.6 5S7.5 12 9 13c1 .7 2 .5 2.8-.4l.8-1-2.4-2-1 .9c-1-.6-2.2-1.8-2.8-2.9l1-.9-2-2.4-1 .8z' fill='black'/></svg>");mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path d='M3 2.5c-1 1-1 2.5.6 5S7.5 12 9 13c1 .7 2 .5 2.8-.4l.8-1-2.4-2-1 .9c-1-.6-2.2-1.8-2.8-2.9l1-.9-2-2.4-1 .8z' fill='black'/></svg>")}

.navbar{position:absolute;top:var(--topbar-h);left:0;right:0;height:var(--nav-h);z-index:80;background:transparent;transition:background .3s var(--ease),box-shadow .3s var(--ease)}
.navbar--top{top:0}
.navbar.is-fixed{position:fixed;top:0;background:var(--nav-bg);box-shadow:0 2px 12px rgba(0,0,0,.14)}
.navbar__inner{display:flex;align-items:center;justify-content:space-between;gap:12px;height:100%}
.navtools{display:flex;align-items:stretch;height:100%;margin-left:auto}
.lang-switch{display:flex;align-items:center;justify-content:center;align-self:center;min-width:42px;height:30px;margin-left:8px;padding:0 10px;border:1px solid rgba(255,255,255,.72);border-radius:2px;color:#fff;font-size:12px;font-weight:700;letter-spacing:.5px;transition:background-color .25s var(--ease),border-color .25s var(--ease)}
.lang-switch:hover{background:var(--blue);border-color:var(--blue)}
.lang-en{font-family:Arial,"Helvetica Neue",sans-serif}

.navmask{position:fixed;inset:0;background:rgba(6,20,38,.5);z-index:70;opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s}
.navmask.is-on{opacity:1;visibility:visible}

.logo{display:flex;align-items:center;gap:9px;height:100%;flex:0 0 auto}
.logo__mark{width:32px;height:32px;flex:0 0 32px}
.logo__mark img{width:100%;height:100%;object-fit:contain;border-radius:7px}
.logo__txt{display:flex;flex-direction:column;line-height:1.15;color:#fff}
.logo__txt b{font-size:16px;letter-spacing:3px;font-weight:400}
.logo__txt i{font-size:12px;letter-spacing:2px;font-style:normal;opacity:.92}

.nav{display:flex;align-items:stretch;height:100%}
.nav__link{display:flex;align-items:center;padding:0 14px;font-size:15px;line-height:1.2;color:#fff;white-space:nowrap;transition:background-color .25s var(--ease)}
.nav__link.is-active{background:var(--blue)}

.navtoggle{display:none;width:44px;height:44px;margin-right:-10px;flex-direction:column;align-items:center;justify-content:center;gap:5px;flex:0 0 44px}
.navtoggle span{display:block;width:22px;height:2px;background:#fff;border-radius:2px;transition:transform .3s var(--ease),opacity .2s}
.navtoggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.navtoggle.is-open span:nth-child(2){opacity:0}
.navtoggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.hero{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;overflow:hidden;background:#4d5560;padding-top:calc(var(--topbar-h) + var(--nav-h))}
.no-topbar .hero{padding-top:var(--nav-h)}
.hero__media{position:absolute;inset:0;z-index:0}
.hero::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(0,0,0,.62) 0%,rgba(0,0,0,.34) 46%,rgba(0,0,0,.14) 100%)}
.hero__media picture,.hero__media img{width:100%;height:100%}
.hero__media img{object-fit:cover}
.hero__inner{position:relative;z-index:2}
.hero__copy{max-width:640px}
.hero__title{font-size:clamp(24px,4.2vw,42px);font-weight:400;color:#fff;letter-spacing:2px;line-height:1.3;margin-bottom:26px;text-shadow:0 2px 14px rgba(0,0,0,.28)}
.hero__list li{font-size:clamp(13px,1.4vw,15px);color:rgba(255,255,255,.94);line-height:2.6;font-weight:700;text-shadow:0 1px 8px rgba(0,0,0,.3)}
.hero__btns{display:flex;flex-wrap:wrap;gap:7px;margin-top:24px}

.btn-ghost{display:inline-flex;align-items:center;justify-content:center;min-width:118px;height:44px;padding:0 18px;border:1px solid #fff;color:#fff;font-size:15px;font-weight:700;transition:background-color .28s var(--ease),border-color .28s var(--ease),transform .28s var(--ease)}
.btn-ghost:active{background:var(--blue-deep);border-color:var(--blue-deep)}

.sec{padding:var(--sec-pad) 0}
.sec--gray{background:var(--band)}
.sec--flush{padding-top:0}
.sec__title{font-size:clamp(22px,2.6vw,32px);font-weight:400;color:var(--blue);text-align:center;letter-spacing:2px;margin-bottom:16px}
.sec__title--left{text-align:left}
.sec__sub{text-align:center;color:var(--ink-2);font-size:clamp(13px,1.2vw,14px);max-width:900px;margin:0 auto 40px}
.sec__desc{color:var(--ink-2);font-size:clamp(13px,1.2vw,14px);line-height:2;margin-bottom:36px;text-align:justify}
.sec--flush .sec__title{margin-top:56px}

.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.grid4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap)}

.about__grid{display:grid;grid-template-columns:minmax(0,1fr) 480px;gap:50px;align-items:start;margin:26px 0 44px}
.about__text p{color:var(--ink-2);line-height:2.1;margin-bottom:14px;text-align:justify}
.about__video{position:relative;display:block;overflow:hidden;background:#e9edf1}
.about__video[data-video]{cursor:pointer}
.about__video img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .6s var(--ease)}
.about__video figcaption{position:absolute;left:0;right:0;bottom:0;padding:12px 14px;font-size:14px;color:#fff;background:linear-gradient(transparent,rgba(0,0,0,.55))}

.fill-empty{width:100%;aspect-ratio:16/10;background:#e9edf1}

.play{position:absolute;top:50%;left:50%;width:66px;height:66px;margin:-33px 0 0 -33px;border:2px solid rgba(255,255,255,.9);border-radius:50%;background:rgba(255,255,255,.16);transition:transform .3s var(--ease),background-color .3s var(--ease)}
.play::after{content:"";position:absolute;top:50%;left:54%;width:0;height:0;transform:translate(-50%,-50%);border-left:17px solid #fff;border-top:11px solid transparent;border-bottom:11px solid transparent}
.play--sm{width:52px;height:52px;margin:-26px 0 0 -26px}
.play--sm::after{border-left-width:13px;border-top-width:9px;border-bottom-width:9px}

.feat{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.feat__card{display:block;border:1px solid var(--line);padding:30px 26px 34px;min-height:254px;background:#fff;color:inherit;transition:background .32s var(--ease),border-color .32s var(--ease),transform .32s var(--ease),box-shadow .32s var(--ease)}
.feat__no{display:block;font-size:30px;line-height:1;color:var(--blue);font-weight:700;margin-bottom:16px;transition:color .32s var(--ease)}
.feat__h{font-size:18px;font-weight:700;margin-bottom:12px;transition:color .32s var(--ease)}
.feat__p{font-size:13px;color:var(--ink-2);line-height:2;transition:color .32s var(--ease)}

.deliver{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px}
.deliver__item{display:block;text-align:center;padding:14px 6px;color:inherit;transition:transform .3s var(--ease)}
.deliver__item b{display:block;font-size:14px;font-weight:700;margin-top:10px;transition:color .3s var(--ease)}
.deliver__item em{display:block;font-style:normal;font-size:11px;color:var(--ink-3);line-height:1.5;word-break:break-word}

.dico{width:34px;height:34px;margin:0 auto;display:block;background:#5a5a5a;transition:background .3s var(--ease);-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;-webkit-mask-position:center;mask-position:center;-webkit-mask-size:contain;mask-size:contain}
.dico--kit{-webkit-mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'><path d='M4 10 16 4l12 6-12 6z' fill='black'/><path d='M4 16l12 6 12-6M4 22l12 6 12-6' stroke='black' stroke-width='2' fill='none'/></svg>");mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'><path d='M4 10 16 4l12 6-12 6z' fill='black'/><path d='M4 16l12 6 12-6M4 22l12 6 12-6' stroke='black' stroke-width='2' fill='none'/></svg>")}
.dico--manual{-webkit-mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'><path d='M6 4h20v24H6z' fill='none' stroke='black' stroke-width='2'/><path d='M11 11h10M11 16h10M11 21h6' stroke='black' stroke-width='2'/></svg>");mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'><path d='M6 4h20v24H6z' fill='none' stroke='black' stroke-width='2'/><path d='M11 11h10M11 16h10M11 21h6' stroke='black' stroke-width='2'/></svg>")}
.dico--install{-webkit-mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'><rect x='3' y='7' width='26' height='18' rx='2' fill='none' stroke='black' stroke-width='2'/><path d='M14 12l6 4-6 4z' fill='black'/></svg>");mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'><rect x='3' y='7' width='26' height='18' rx='2' fill='none' stroke='black' stroke-width='2'/><path d='M14 12l6 4-6 4z' fill='black'/></svg>")}
.dico--produce{-webkit-mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'><path d='M4 26V12l7 5V12l7 5V8l10 6v12z' fill='none' stroke='black' stroke-width='2' stroke-linejoin='round'/></svg>");mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'><path d='M4 26V12l7 5V12l7 5V8l10 6v12z' fill='none' stroke='black' stroke-width='2' stroke-linejoin='round'/></svg>")}
.dico--tool{-webkit-mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'><path d='M20 4a7 7 0 0 0-6.3 10L4 23.7 8.3 28l9.7-9.7A7 7 0 1 0 20 4z' fill='none' stroke='black' stroke-width='2'/></svg>");mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'><path d='M20 4a7 7 0 0 0-6.3 10L4 23.7 8.3 28l9.7-9.7A7 7 0 1 0 20 4z' fill='none' stroke='black' stroke-width='2'/></svg>")}
.dico--report{-webkit-mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'><path d='M7 3h12l6 6v20H7z' fill='none' stroke='black' stroke-width='2'/><path d='M12 18l3 3 6-6' stroke='black' stroke-width='2' fill='none'/></svg>");mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'><path d='M7 3h12l6 6v20H7z' fill='none' stroke='black' stroke-width='2'/><path d='M12 18l3 3 6-6' stroke='black' stroke-width='2' fill='none'/></svg>")}

.pcard{display:block;border:1px solid var(--line);background:#fff;color:inherit;padding:0 0 22px;transition:box-shadow .35s var(--ease),transform .35s var(--ease),border-color .35s var(--ease)}
.pcard__pic{overflow:hidden;background:#f6f6f6}
.pcard__pic img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .6s var(--ease)}
.pcard__pic.is-empty{aspect-ratio:4/3;background:#f2f4f6}
.pcard__cn{font-size:16px;font-weight:700;margin:18px 20px 4px;transition:color .3s var(--ease)}
.pcard__en{font-size:11px;color:var(--ink-3);margin:0 20px 12px;letter-spacing:.3px;word-break:break-word}
.pcard__desc{font-size:13px;color:var(--ink-2);line-height:1.9;margin:0 20px;text-align:justify}

.vcard{display:block;color:inherit;transition:transform .35s var(--ease)}
.vcard[data-video]{cursor:pointer}
.vcard__pic{position:relative;overflow:hidden;background:#dfe4e9}
.vcard__pic img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .6s var(--ease)}
.vcard__pic .fill-empty{aspect-ratio:3/2}
.vcard__tag{position:absolute;top:12px;left:12px;padding:3px 9px;font-size:11px;color:#fff;background:rgba(0,0,0,.42);border-radius:2px}
.vcard__no{position:absolute;left:14px;bottom:12px;font-size:15px;font-weight:700;color:#fff;text-shadow:0 1px 6px rgba(0,0,0,.5)}
.vcard__t{font-size:14px;font-weight:400;text-align:center;margin-top:14px;transition:color .3s var(--ease)}

.cases{display:flex;flex-direction:column;gap:26px}
.case{position:relative;display:block;overflow:hidden;background:#eceff2}
.case img{width:100%;aspect-ratio:21/8;object-fit:cover;transition:transform .8s var(--ease)}
.case .fill-empty{aspect-ratio:21/8}
.case__cap{position:absolute;left:0;right:0;bottom:0;padding:26px 34px 24px;color:#fff;background:linear-gradient(transparent,rgba(0,0,0,.6))}
.case__cap b{display:block;font-size:clamp(16px,2vw,24px);font-weight:400;letter-spacing:2px;margin-bottom:6px}
.case__cap span{font-size:clamp(12px,1.2vw,14px);opacity:.9}

.dcard{display:flex;flex-direction:column;align-items:center;text-align:center;background:#fff;border:1px solid var(--line);padding:24px 14px 20px;min-height:150px;transition:border-color .3s var(--ease),box-shadow .3s var(--ease),transform .3s var(--ease)}
.dcard b{font-size:13px;font-weight:400;line-height:1.6;margin-top:12px;word-break:break-word;transition:color .3s var(--ease)}
.dcard em{font-style:normal;font-size:12px;color:var(--ink-3);margin-top:6px}
.dl{width:38px;height:38px;flex:0 0 38px;background:var(--blue);border-radius:3px;position:relative;transition:transform .3s var(--ease),background .3s var(--ease)}
.dl::after{content:"";position:absolute;inset:0;background:#fff;-webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'><path d='M16 6v14M10 15l6 6 6-6M8 25h16' stroke='black' stroke-width='2.4' fill='none' stroke-linecap='round' stroke-linejoin='round'/></svg>") center/22px 22px no-repeat;mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'><path d='M16 6v14M10 15l6 6 6-6M8 25h16' stroke='black' stroke-width='2.4' fill='none' stroke-linecap='round' stroke-linejoin='round'/></svg>") center/22px 22px no-repeat}

.strength{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap);margin-bottom:var(--gap)}
.shot{display:block;overflow:hidden;background:#eef1f4}
.shot img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .6s var(--ease)}
.shot--wide img{aspect-ratio:32/9}

.fbanner{display:block;background:#1a1512;overflow:hidden}
.fbanner img{width:100%;aspect-ratio:32/9;object-fit:cover}
.fbanner--in{margin-top:44px}
.fbanner--in img{aspect-ratio:37/10}

.policy{margin-bottom:44px}
.policy__row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 26px;background:#f7f8f9;border-left:3px solid transparent;margin-bottom:12px;color:inherit;transition:background .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease)}
.policy__row b{font-size:16px;font-weight:700;transition:color .3s var(--ease)}
.policy__row span{font-size:13px;color:var(--ink-3)}

.qrblock{text-align:center;padding:10px 0 6px}
.qrblock h3{font-size:20px;font-weight:400;margin-bottom:8px}
.qrblock p{font-size:13px;color:var(--ink-2);line-height:1.9}
.qr{width:min(240px,70vw);margin:22px auto 10px;background:#fff;padding:10px;border:1px solid var(--line)}
.qr img{width:100%;aspect-ratio:1;object-fit:contain}
.qr__cap{font-size:13px;color:var(--ink-2)}

.news__row{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 18px;border-bottom:1px dashed #dcdcdc;transition:background .28s var(--ease),padding-left .28s var(--ease)}
.news__row a,.news__row span{display:inline-block;font-size:14px;padding:3px 0;transition:color .28s var(--ease)}
.news__row time{font-size:13px;color:var(--ink-3);flex:0 0 auto}

.contact{grid-template-columns:repeat(2,minmax(0,1fr));max-width:760px;margin:0 auto}
.contact .ccard{display:flex;flex-direction:column;align-items:center;text-align:center;padding:34px 22px;border:1px solid var(--line);background:#fff;color:inherit;transition:border-color .3s var(--ease),box-shadow .3s var(--ease),transform .3s var(--ease)}
.ccard b{font-size:16px;font-weight:700;margin:14px 0 6px}
.ccard span{font-size:14px;color:var(--ink-2);word-break:break-word}
.cico{width:44px;height:44px;flex:0 0 44px;border-radius:50%;background:var(--blue);position:relative;transition:background .3s var(--ease)}
.cico::after{content:"";position:absolute;inset:0;background:#fff;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;-webkit-mask-position:center;mask-position:center;-webkit-mask-size:22px 22px;mask-size:22px 22px}
.cico--pin::after{-webkit-mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M12 2a7 7 0 0 0-7 7c0 5 7 13 7 13s7-8 7-13a7 7 0 0 0-7-7z' fill='none' stroke='black' stroke-width='2'/><circle cx='12' cy='9' r='2.5' fill='black'/></svg>");mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M12 2a7 7 0 0 0-7 7c0 5 7 13 7 13s7-8 7-13a7 7 0 0 0-7-7z' fill='none' stroke='black' stroke-width='2'/><circle cx='12' cy='9' r='2.5' fill='black'/></svg>")}
.cico--mail::after{-webkit-mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><rect x='2' y='5' width='20' height='14' fill='none' stroke='black' stroke-width='2'/><path d='M3 6l9 7 9-7' fill='none' stroke='black' stroke-width='2'/></svg>");mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><rect x='2' y='5' width='20' height='14' fill='none' stroke='black' stroke-width='2'/><path d='M3 6l9 7 9-7' fill='none' stroke='black' stroke-width='2'/></svg>")}
.cico--tel::after{-webkit-mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M5 3c-1.6 1.6-1.6 4 1 8s6.4 6.4 8 7c1.6.6 3 .2 4-1l1.3-1.6-3.7-3-1.6 1.4c-1.6-.9-3.4-2.7-4.3-4.3l1.4-1.6-3-3.7L5 3z' fill='black'/></svg>");mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M5 3c-1.6 1.6-1.6 4 1 8s6.4 6.4 8 7c1.6.6 3 .2 4-1l1.3-1.6-3.7-3-1.6 1.4c-1.6-.9-3.4-2.7-4.3-4.3l1.4-1.6-3-3.7L5 3z' fill='black'/></svg>")}

.footer{background:var(--footer-bg);color:rgba(255,255,255,.72);padding:52px 0 0;font-size:13px}
.footer__grid{display:grid;grid-template-columns:minmax(0,1fr) 240px 240px;gap:40px;align-items:start}
.footer__info h4{font-size:17px;color:#fff;font-weight:400;margin-bottom:12px}
.footer__info h5{font-size:14px;color:#fff;font-weight:400;margin:22px 0 10px}
.footer__info p{line-height:1.9;word-break:break-word}
.footer__info p a{display:inline-block;padding:6px 0}
.footer__info a{transition:color .25s var(--ease)}
.footer__links li{line-height:1.6}
.footer__links a{display:inline-block;padding:6px 0;transition:color .25s var(--ease),padding-left .25s var(--ease)}
.footer__qr{background:#fff;padding:14px;text-align:center;color:var(--ink)}
.footer__qr figure{background:#f4f4f4}
.footer__qr figure.is-empty{aspect-ratio:1}
.footer__qr img{width:100%;aspect-ratio:1;object-fit:contain}
.footer__qr small{display:block;font-size:11px;color:var(--ink-3);line-height:1.6}
.qrtag{display:inline-flex;align-items:center;justify-content:center;margin:10px 0 6px;padding:5px 12px;border-radius:3px;font-size:13px;color:#fff}
.qrtag--dy{background:#111}
.qrtag--wx{background:#3eb135}
.copy{margin-top:44px;border-top:1px solid rgba(255,255,255,.1);padding:16px 0 calc(16px + var(--safe-b));font-size:12px}
.copy .container{display:flex;flex-wrap:wrap;gap:4px 26px;justify-content:center;align-items:center;text-align:center}
.copy span,.copy a{display:inline-block;padding:6px 0}
.copy a{transition:color .25s var(--ease)}

.totop{position:fixed;right:calc(15px + var(--safe-r));bottom:calc(20px + var(--safe-b));width:40px;height:40px;background:var(--blue);z-index:90;opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .3s var(--ease),transform .3s var(--ease),background .25s var(--ease),visibility .3s}
.totop.is-on{opacity:1;visibility:visible;transform:translateY(0)}
.totop::after{content:"";position:absolute;inset:0;background:#fff;-webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M12 6l7 8H5z' fill='black'/></svg>") center/18px 18px no-repeat;mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M12 6l7 8H5z' fill='black'/></svg>") center/18px 18px no-repeat}

.modal{position:fixed;inset:0;z-index:120;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.86);padding:20px}
.modal__box{position:relative;width:min(960px,100%)}
.modal__body{background:#000;aspect-ratio:16/9}
.modal__body video{width:100%;height:100%;display:block}
.modal__close{position:absolute;top:-46px;right:0;width:44px;height:44px;font-size:30px;line-height:1;color:#fff}

.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

.topbar__item:hover{color:#fff}
.nav__link:hover,.nav__link:focus-visible{background:var(--blue)}
.btn-ghost:hover,.btn-ghost:focus-visible{background:var(--blue);border-color:var(--blue);transform:translateY(-2px)}
.about__video:hover img{transform:scale(1.06)}
.about__video:hover .play,.vcard:hover .play{transform:scale(1.12);background:rgba(34,144,223,.75)}
.feat__card:hover{background:linear-gradient(135deg,var(--blue) 0%,var(--blue-hi) 100%);border-color:transparent;transform:translateY(-4px);box-shadow:0 14px 30px rgba(34,144,223,.28)}
.feat__card:hover .feat__no,.feat__card:hover .feat__h,.feat__card:hover .feat__p{color:#fff}
.deliver__item:hover{transform:translateY(-5px)}
.deliver__item:hover b{color:var(--blue)}
.deliver__item:hover .dico{background:var(--blue)}
.pcard:hover{transform:translateY(-6px);box-shadow:0 16px 34px rgba(0,0,0,.11);border-color:transparent}
.pcard:hover .pcard__pic img{transform:scale(1.08)}
.pcard:hover .pcard__cn{color:var(--blue)}
.vcard:hover{transform:translateY(-5px)}
.vcard:hover .vcard__pic img{transform:scale(1.07)}
.vcard:hover .vcard__t{color:var(--blue)}
.case:hover img{transform:scale(1.04)}
.dcard:hover{border-color:var(--blue);box-shadow:0 10px 24px rgba(34,144,223,.16);transform:translateY(-4px)}
.dcard:hover .dl{transform:translateY(-3px);background:var(--blue-deep)}
.dcard:hover b{color:var(--blue)}
.shot:hover img{transform:scale(1.05)}
.policy__row:hover{background:#eef6fd;border-left-color:var(--blue);transform:translateX(4px)}
.policy__row:hover b{color:var(--blue)}
.news__row:hover{background:#fff;padding-left:26px}
.news__row:hover a{color:var(--blue)}
.ccard:hover{border-color:var(--blue);box-shadow:0 14px 30px rgba(34,144,223,.16);transform:translateY(-5px)}
.ccard:hover .cico{background:var(--blue-deep)}
.footer__info a:hover{color:var(--blue)}
.footer__links a:hover{color:#fff;padding-left:5px}
.copy a:hover{color:var(--blue)}
.totop:hover{background:var(--blue-deep)}

html.is-touch .btn-ghost:hover{background:transparent;border-color:#fff;transform:none}
html.is-touch .feat__card:hover{background:#fff;border-color:var(--line);transform:none;box-shadow:none}
html.is-touch .feat__card:hover .feat__no{color:var(--blue)}
html.is-touch .feat__card:hover .feat__h{color:var(--ink)}
html.is-touch .feat__card:hover .feat__p{color:var(--ink-2)}
html.is-touch .deliver__item:hover{transform:none}
html.is-touch .deliver__item:hover b{color:var(--ink)}
html.is-touch .deliver__item:hover .dico{background:#5a5a5a}
html.is-touch .pcard:hover{transform:none;box-shadow:none;border-color:var(--line)}
html.is-touch .pcard:hover .pcard__pic img{transform:none}
html.is-touch .pcard:hover .pcard__cn{color:var(--ink)}
html.is-touch .vcard:hover{transform:none}
html.is-touch .vcard:hover .vcard__pic img{transform:none}
html.is-touch .vcard:hover .vcard__t{color:var(--ink)}
html.is-touch .vcard:hover .play,html.is-touch .about__video:hover .play{transform:none;background:rgba(255,255,255,.16)}
html.is-touch .about__video:hover img{transform:none}
html.is-touch .case:hover img{transform:none}
html.is-touch .shot:hover img{transform:none}
html.is-touch .dcard:hover{transform:none;box-shadow:none;border-color:var(--line)}
html.is-touch .dcard:hover .dl{transform:none;background:var(--blue)}
html.is-touch .dcard:hover b{color:var(--ink)}
html.is-touch .policy__row:hover{background:#f7f8f9;border-left-color:transparent;transform:none}
html.is-touch .policy__row:hover b{color:var(--ink)}
html.is-touch .news__row:hover{background:transparent;padding-left:18px}
html.is-touch .news__row:hover a{color:var(--ink)}
html.is-touch .ccard:hover{transform:none;box-shadow:none;border-color:var(--line)}
html.is-touch .ccard:hover .cico{background:var(--blue)}
html.is-touch .nav__link:hover{background:transparent}
html.is-touch .nav__link.is-active{background:var(--blue)}
html.is-touch .footer__links a:hover{padding-left:0}
html.is-touch .totop:hover{background:var(--blue)}

html.is-touch .feat__card:active{background:linear-gradient(135deg,var(--blue) 0%,var(--blue-hi) 100%);border-color:transparent}
html.is-touch .feat__card:active .feat__no,html.is-touch .feat__card:active .feat__h,html.is-touch .feat__card:active .feat__p{color:#fff}
html.is-touch a:active,html.is-touch .pcard:active,html.is-touch .vcard:active,html.is-touch .dcard:active,html.is-touch .ccard:active,html.is-touch .policy__row:active{opacity:.75}


@media (max-width:1199px){
  :root{--container:100%;--gap:24px;--sec-pad:60px}
  .nav__link{padding:0 9px;font-size:13px}
  .about__grid{grid-template-columns:minmax(0,1fr) 400px;gap:34px}
  .grid4{grid-template-columns:repeat(3,minmax(0,1fr))}
  .footer__grid{gap:28px}
}

@media (max-width:1023px){
  :root{--sec-pad:52px}
  .navtoggle{display:flex}
  .navbar{background:var(--nav-bg)}
  .navtools{margin-left:auto}
  .lang-switch{margin-left:0;margin-right:4px;min-width:40px;height:30px}
  .navbar--top{position:fixed;top:0}
  .nav{position:fixed;top:var(--nav-h);left:0;right:0;flex-direction:column;align-items:stretch;height:auto;max-height:calc(100vh - var(--nav-h));max-height:calc(100svh - var(--nav-h));background:var(--nav-bg);padding-bottom:var(--safe-b);transform:translateY(-8px);opacity:0;visibility:hidden;overflow-y:auto;overscroll-behavior:contain;z-index:81;transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s}
  .nav.is-open{opacity:1;visibility:visible;transform:none}
  .nav__link{flex:0 0 auto;height:52px;padding:0 max(var(--pad),var(--safe-l));font-size:15px;border-bottom:1px solid rgba(255,255,255,.08)}
  .about__grid{grid-template-columns:minmax(0,1fr);gap:28px;margin-bottom:36px}
  .about__video{max-width:640px}
  .grid3,.feat{grid-template-columns:repeat(2,minmax(0,1fr))}
  .deliver{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
  .feat__card{min-height:0;padding:24px 20px 26px}
  .case img,.case .fill-empty{aspect-ratio:16/9}
  .case__cap{padding:18px 22px 16px}
  .shot--wide img{aspect-ratio:21/9}
  .fbanner img{aspect-ratio:21/9}
  .fbanner--in img{aspect-ratio:21/9}
  .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__info{grid-column:1 / -1}
  .footer__qr{max-width:260px}
}

@media (max-width:767px){
  :root{--pad:16px;--gap:16px;--sec-pad:42px}
  .topbar{height:38px;font-size:12px}
  .topbar__inner{gap:18px}
  .hero{padding-top:calc(36px + var(--nav-h) + 20px);padding-bottom:40px;align-items:center}
  .hero__title{margin-bottom:18px;letter-spacing:1px}
  .hero__list li{line-height:2.2}
  .hero__btns{gap:10px;margin-top:20px}
  .btn-ghost{min-width:0;flex:1 1 30%;height:42px;padding:0 10px;font-size:14px}
  .sec__sub{margin-bottom:26px}
  .sec__desc{margin-bottom:24px;text-align:left}
  .sec--flush .sec__title{margin-top:36px}
  .grid3,.feat,.strength{grid-template-columns:minmax(0,1fr)}
  .grid4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .deliver{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
  .deliver__item{padding:10px 2px}
  .deliver__item b{font-size:13px}
  .deliver__item em{font-size:10px}
  .dico{width:28px;height:28px}
  .about__text p{text-align:left;line-height:1.95}
  .about__video{max-width:none}
  .play{width:54px;height:54px;margin:-27px 0 0 -27px}
  .play::after{border-left-width:14px;border-top-width:9px;border-bottom-width:9px}
  .play--sm{width:46px;height:46px;margin:-23px 0 0 -23px}
  .pcard__desc{text-align:left}
  .case img,.case .fill-empty{aspect-ratio:4/3}
  .case__cap{padding:14px 16px 12px}
  .shot img{aspect-ratio:4/3}
  .shot--wide img{aspect-ratio:16/9}
  .fbanner img,.fbanner--in img{aspect-ratio:16/9}
  .fbanner--in{margin-top:28px}
  .policy{margin-bottom:30px}
  .policy__row{flex-direction:column;align-items:flex-start;gap:4px;padding:14px 16px}
  .policy__row b{font-size:15px}
  .qrblock h3{font-size:18px}
  .news__row{flex-direction:column;align-items:flex-start;gap:4px;padding:14px 4px}
  .contact{grid-template-columns:minmax(0,1fr);max-width:none}
  .contact .ccard{padding:24px 16px}
  .footer{padding-top:36px}
  .footer__grid{grid-template-columns:minmax(0,1fr);gap:22px}
  .footer__qr{max-width:none;display:grid;grid-template-columns:110px minmax(0,1fr);gap:12px;align-items:center;text-align:left;padding:12px}
  .footer__qr figure{grid-row:span 2}
  .qrtag{margin:0 0 4px}
  .copy{margin-top:28px}
  .totop{width:44px;height:44px;right:calc(12px + var(--safe-r));bottom:calc(14px + var(--safe-b))}
  .modal{padding:12px}
  .modal__close{top:auto;bottom:-52px;right:50%;transform:translateX(50%)}
}

@media (max-width:479px){
  :root{--sec-pad:36px}
  .hero__btns{flex-direction:column;align-items:flex-start}
  .btn-ghost{flex:0 0 auto;width:100%;max-width:260px}
  .grid4{grid-template-columns:minmax(0,1fr)}
  .deliver{grid-template-columns:repeat(2,minmax(0,1fr))}
  .dcard{flex-direction:row;align-items:center;text-align:left;gap:14px;min-height:0;padding:16px 14px}
  .dcard b{margin-top:0}
  .dcard em{margin-top:2px}
  .dcard>*:not(.dl){align-self:flex-start}
  .footer__qr{grid-template-columns:96px minmax(0,1fr)}
}

@media (max-height:520px) and (orientation:landscape){
  .hero{min-height:0;padding-top:calc(var(--nav-h) + 34px);padding-bottom:34px}
  .hero__title{margin-bottom:12px}
  .hero__list li{line-height:2}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
  .reveal{opacity:1;transform:none}
}

/* ============================================================
   排版修正
   原来各栅格都是固定列数（交付 6 列 / 实力 2 列 / 卡片 3-4 列），
   条目数一旦不是列数的整数倍，最后一行就会孤零零挤在左边。
   改成 flex 换行 + 居中，任意条目数都排得住。
   列数仍由 --cw-cols 控制，跟原设计完全一致。
   ============================================================ */
.grid3,.grid4,.feat,.deliver,.strength,.contact{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  align-items:stretch;
}
.grid3>*,.grid4>*,.feat>*,.deliver>*,.strength>*,.contact>*{
  flex:0 1 calc((100% - (var(--cw-cols) - 1) * var(--cw-gap)) / var(--cw-cols));
  max-width:calc((100% - (var(--cw-cols) - 1) * var(--cw-gap)) / var(--cw-cols));
  min-width:0;
}
.grid3{--cw-cols:3;--cw-gap:var(--gap)}
.grid4{--cw-cols:4;--cw-gap:var(--gap)}
.feat{--cw-cols:3;--cw-gap:var(--gap)}
.strength{--cw-cols:2;--cw-gap:var(--gap)}
.contact{--cw-cols:2;--cw-gap:var(--gap)}
.deliver{--cw-cols:6;--cw-gap:10px}

/* 顶栏配色修正
   原样式是给"叠在深色大图上"用的（半透明白底 + 白字）。
   顶栏实际排在页面最上方的白色区域，白字白底会完全看不见，
   所以改成品牌深蓝实底 + 浅色文字。 */
.topbar{background:var(--footer-bg);color:rgba(255,255,255,.82)}
.topbar .ico{background:var(--blue-hi)}
.topbar__item{color:inherit}
.topbar__item:hover{color:#fff}
.topbar__item:hover .ico{background:#fff}

/* 顶栏是占位元素（不是浮层），首屏不必再为它预留一次高度 */
body:not(.no-topbar) .hero{
  padding-top:var(--nav-h);
  min-height:calc(100vh - var(--topbar-h));
  min-height:calc(100svh - var(--topbar-h));
}

/* 顶栏在窄屏隐藏，导航条改为顶部固定，与原移动端设计一致 */
@media (max-width:1023px){
  .topbar{display:none}
  .navbar{position:fixed;top:0}
  body:not(.no-topbar) .hero{
    padding-top:var(--nav-h);
    min-height:100vh;
    min-height:100svh;
  }
}

@media (max-width:1199px){
  .grid4{--cw-cols:3}
}
@media (max-width:1023px){
  .grid3,.feat{--cw-cols:2}
  .grid4{--cw-cols:3}
  .deliver{--cw-cols:3;--cw-gap:16px}
}
@media (max-width:767px){
  .grid3,.feat,.strength,.contact{--cw-cols:1}
  .grid4{--cw-cols:2}
  .deliver{--cw-cols:3;--cw-gap:10px}
}
@media (max-width:479px){
  .grid4{--cw-cols:1}
  .deliver{--cw-cols:2}
}