/* 东一线业官网样式。首页部分直接来自 design/首页设计稿.html（已确认版），子页面样式在文件末尾。 */
:root{
--g900:#2A3C32; --g800:#364A3E; --g700:#425C4D; --g500:#627F6E;
--g300:#95AC9F; --g200:#B5C5BC; --g100:#CDDAD3; --g50:#EAF1ED;
--line:#DCE5E0; --paper:#F4F8F6; --white:#FFFFFF;
--ink:#222B26; --ink2:#596960;
--serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STZhongsong","SimSun",serif;
--sans:"Noto Sans SC","Microsoft YaHei","PingFang SC","Hiragino Sans GB",system-ui,sans-serif;
--wrap:1240px;
--edge:max(40px, calc((100vw - var(--wrap)) / 2));
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font:16px/1.8 var(--sans);-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button,input,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--g700);outline-offset:3px}
.on-dark :focus-visible,.nav:not(.solid) :focus-visible{outline-color:#fff}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.wrap{max-width:calc(var(--wrap) + 80px);margin:0 auto;padding:0 40px}
h2{font:500 40px/1.35 var(--serif);letter-spacing:.06em;color:var(--ink)}
h3{font:500 21px/1.5 var(--serif);letter-spacing:.04em}
/* 线迹：贯穿全站的唯一装饰语言 */
.stitch-x{display:block;height:2px;background:linear-gradient(90deg,currentColor 0 9px,transparent 9px 15px) 0 0/15px 2px repeat-x}
/* ───────── 导航 ───────── */
.nav{position:fixed;top:0;left:0;right:0;z-index:40;height:84px;color:#fff;
transition:background-color .35s,color .35s,border-color .35s;border-bottom:1px solid transparent}
.nav.solid{background:rgba(244,248,246,.97);color:var(--ink);border-bottom-color:var(--line);
backdrop-filter:saturate(1.2) blur(10px)}
.nav .in{height:100%;display:flex;align-items:center;padding:0 var(--edge)}
.logo{position:relative;flex:0 0 auto;width:132px;height:46px}
.logo img{position:absolute;inset:0;height:46px;width:auto;transition:opacity .35s}
.logo .dark{opacity:0}
.nav.solid .logo .light{opacity:0}
.nav.solid .logo .dark{opacity:1}
.menu{display:flex;margin-left:72px;height:100%}
.menu > li{position:relative;display:flex;align-items:center}
.menu > li > a{display:flex;align-items:center;gap:6px;height:100%;padding:0 18px;font-size:15px;letter-spacing:.06em;opacity:.86}
.menu > li > a:hover,.menu > li:focus-within > a{opacity:1}
.menu > li > a[aria-current]{opacity:1;font-weight:500}
.menu > li > a[aria-current]::after{content:"";position:absolute;left:18px;right:18px;bottom:22px;height:2px;background:currentColor}
.caret{width:8px;height:8px;border-right:1.2px solid currentColor;border-bottom:1.2px solid currentColor;transform:translateY(-3px) rotate(45deg);opacity:.7}
.drop{position:absolute;top:calc(100% - 8px);left:4px;min-width:200px;background:#fff;color:var(--ink);
border:1px solid var(--line);box-shadow:0 18px 40px -18px rgba(42,60,50,.35);padding:12px 0;
opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .2s,transform .2s,visibility .2s}
.menu > li:hover .drop,.menu > li:focus-within .drop{opacity:1;visibility:visible;transform:none}
.drop a{display:flex;align-items:center;gap:12px;padding:9px 24px;font-size:14px;color:var(--ink2);white-space:nowrap}
.drop a:hover{background:var(--g50);color:var(--ink)}
.drop.wide{display:grid;grid-template-columns:1fr 1fr;gap:2px;padding:14px}
.drop.wide a{padding:12px 14px;gap:14px;white-space:normal}
.drop.prod{min-width:600px}
.drop.prod a{align-items:flex-start}
.drop .cbar{width:4px;height:40px;border-radius:1px;background:var(--c);flex:0 0 auto}
.drop b{display:block;font:500 15px/1.4 var(--sans);color:var(--ink)}
.drop small{display:block;margin-top:4px;font-size:13px;line-height:1.5;color:var(--ink2)}
.drop.scene{min-width:520px}
.drop.green{grid-template-columns:1fr;min-width:320px}
.drop .tile{width:40px;height:40px;border-radius:2px;background:var(--g50);color:var(--g700);
display:flex;align-items:center;justify-content:center;flex:0 0 auto;transition:background-color .2s}
.drop .tile svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.drop a:hover .tile{background:#fff}
.lang{margin-left:auto;position:relative}
.lang > button{display:flex;align-items:center;gap:8px;background:none;border:1px solid currentColor;border-radius:2px;
padding:6px 14px;font-size:13px;letter-spacing:.06em;cursor:pointer;opacity:.85}
.lang .drop{left:auto;right:0;min-width:140px;top:calc(100% + 8px)}
.lang:hover .drop,.lang:focus-within .drop{opacity:1;visibility:visible;transform:none}
.burger{display:none;margin-left:16px;background:none;border:0;width:40px;height:40px;cursor:pointer}
.burger i{display:block;height:1.5px;background:currentColor;margin:6px 8px}
/* ───────── ① 主图 ───────── */
.hero{position:relative;height:100vh;min-height:660px;max-height:1000px;overflow:hidden;background:var(--g900);color:#fff}
.slide{position:absolute;inset:0;opacity:0;transition:opacity 1.8s ease}
.slide.on{opacity:1}
.slide img{width:100%;height:100%;object-fit:cover;filter:saturate(.58) brightness(1.06) contrast(1.03)}
.tint{position:absolute;inset:0;background:var(--g700);mix-blend-mode:multiply;opacity:.3}
.shade{position:absolute;inset:0;background:
linear-gradient(90deg,rgba(42,60,50,.38) 0%,rgba(42,60,50,0) 40%,rgba(42,60,50,.08) 58%,rgba(42,60,50,.58) 100%),
linear-gradient(0deg,rgba(42,60,50,.62) 0%,transparent 30%),linear-gradient(180deg,rgba(42,60,50,.45) 0%,transparent 18%)}
.hero-copy{position:absolute;top:84px;bottom:0;right:var(--edge);display:flex;flex-direction:row-reverse;align-items:center;gap:56px}
.slogan{writing-mode:vertical-rl;font:500 clamp(60px,7.4vw,112px)/1.42 var(--serif);letter-spacing:.16em;margin-top:-60px}
.slogan span{display:block;animation:ink 1.5s cubic-bezier(.3,.6,.2,1) both}
.slogan span:nth-child(1){animation-delay:.35s}
.slogan span:nth-child(2){animation-delay:.95s}
@keyframes ink{from{clip-path:inset(0 0 100% 0);opacity:.2}to{clip-path:inset(0 0 0 0);opacity:1}}
.thread{align-self:stretch;width:2px;
background:linear-gradient(180deg,rgba(201,210,203,.75) 0 11px,transparent 11px 19px) 0 0/2px 19px repeat-y;
animation:sew 2.6s cubic-bezier(.45,.1,.2,1) .2s both}
@keyframes sew{from{clip-path:inset(0 0 100% 0)}to{clip-path:inset(0 0 0 0)}}
.hero-foot{position:absolute;left:var(--edge);bottom:56px;right:var(--edge);display:flex;align-items:flex-end;justify-content:space-between;gap:40px}
.hero-foot p{font-size:15px;letter-spacing:.12em;color:var(--g100)}
.dots{display:flex;align-items:center;gap:18px}
.dots button{position:relative;width:52px;height:20px;background:none;border:0;cursor:pointer}
.dots button::before,.dots button::after{content:"";position:absolute;left:0;top:9px;height:2px}
.dots button::before{right:0;background:rgba(255,255,255,.28)}
.dots button::after{width:0;background:#fff}
.dots button.on::after{animation:fill 6.5s linear both}
@keyframes fill{to{width:100%}}
.dots .cap{font-size:13px;letter-spacing:.12em;color:var(--g100);min-width:5em}
/* ───────── 通用区块 ───────── */
.sec{padding:136px 0}
.sec.white{background:var(--white)}
/* ② 企业简介 */
.intro .grid{display:grid;grid-template-columns:3fr 9fr;gap:40px}
.statement{font:400 36px/1.6 var(--serif);letter-spacing:.05em;max-width:15em;color:var(--ink)}
.intro .body{margin-top:28px;font-size:17px;color:var(--ink2);max-width:40em}
.figs{display:flex;gap:112px;margin-top:80px;padding-top:44px;border-top:1px solid var(--line)}
.figs b{display:block;font:400 64px/1 var(--serif);letter-spacing:.01em;color:var(--g700)}
.figs sup{font-size:.42em;vertical-align:top;position:relative;top:.12em;margin-left:4px}
.figs span{display:block;margin-top:16px;font-size:14px;letter-spacing:.08em;color:var(--ink2)}
.certs{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin-top:56px;padding-top:40px;border-top:1px solid var(--line)}
.certs li{display:flex;flex-direction:column;align-items:flex-start;gap:18px}
.certs .mk{height:94px;display:flex;align-items:center}
.certs img{width:auto;max-width:150px}
.certs li > span:last-child{font-size:13px;line-height:1.6;letter-spacing:.04em;color:var(--ink2)}
.certs{row-gap:40px}
.badge{display:flex;flex-direction:column;align-items:center;justify-content:center;border:2px solid var(--g700);border-radius:3px;color:var(--g700);font-family:var(--serif)}
.badge.seal{width:62px;height:66px;display:grid;grid-template-columns:1fr 1fr;place-items:center;padding:7px 6px;font:700 16px/1 var(--serif);background:var(--g700);color:#fff}
.badge.seal i{font-style:normal}
.badge.iso{height:62px;padding:0 14px}
.badge.iso b{font:700 24px/1 var(--serif);letter-spacing:.08em}
.badge.iso small{margin-top:7px;font:500 11px/1 var(--sans);letter-spacing:.04em}
/* ③ 我们的服务 */
.svc .grid{display:grid;grid-template-columns:4fr 8fr;gap:40px}
.svc .aside{position:sticky;top:132px;align-self:start}
.svc .aside p{margin-top:24px;font-size:15px;color:var(--ink2);max-width:19em}
.svc li{display:grid;grid-template-columns:40px 180px 1fr;column-gap:28px;align-items:start;padding:38px 0 40px;border-top:1px solid var(--line)}
.svc .tile{width:32px;height:32px;color:var(--g700);margin-top:0}
.svc .tile svg{width:32px!important;height:32px!important;stroke-width:1.3!important}
.svc li:last-child{border-bottom:1px solid var(--line)}
.svc li h3{color:var(--ink)}
.svc li p{font-size:15px;line-height:1.95;color:var(--ink2);max-width:34em}
/* ④ 主打产品 */
.prod .head{display:flex;justify-content:space-between;align-items:flex-end;gap:40px}
.prod .head p{font-size:15px;color:var(--ink2);max-width:28em}
.acc{display:flex;gap:8px;height:580px;margin-top:64px}
.acc a{position:relative;flex:1 1 0;min-width:0;overflow:hidden;border-radius:2px;color:#fff;background:var(--g800);
transition:flex-grow .7s cubic-bezier(.2,.7,.2,1)}
.acc a:hover,.acc a:focus-visible{flex-grow:3.2}
.acc img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
filter:saturate(.82) brightness(.96);transition:filter .7s,transform 1.2s cubic-bezier(.2,.7,.2,1)}
.acc a:hover img,.acc a:focus-visible img{filter:none;transform:scale(1.04)}
.acc a::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(42,60,50,.78) 0%,rgba(42,60,50,0) 48%),
linear-gradient(180deg,rgba(42,60,50,.55) 0%,rgba(42,60,50,0) 36%)}
.acc .nm{position:absolute;z-index:2;top:30px;left:26px;writing-mode:vertical-rl;font:500 30px/1 var(--serif);letter-spacing:.28em;text-shadow:0 1px 14px rgba(42,60,50,.45)}
.acc .meta{position:absolute;z-index:2;left:26px;right:26px;bottom:36px;opacity:0;transform:translateY(10px);
transition:opacity .45s .1s,transform .45s .1s;white-space:nowrap}
.acc a:hover .meta,.acc a:focus-visible .meta{opacity:1;transform:none}
.acc .meta b{display:block;font:500 15px/1.6 var(--sans);letter-spacing:.08em}
.acc .meta span{display:inline-block;margin-top:10px;font-size:13px;letter-spacing:.1em;color:var(--g100);border-bottom:1px solid rgba(255,255,255,.4);padding-bottom:2px}
.acc .bar{position:absolute;z-index:3;left:0;right:0;bottom:0;height:5px;background:var(--c);transition:height .45s}
.acc a:hover .bar,.acc a:focus-visible .bar{height:8px}
/* ⑤ 专业解决方案 */
.sol{background:var(--g900);color:#fff}
.sol .grid{display:grid;grid-template-columns:5fr 7fr;min-height:760px}
.sol .pic{position:relative;overflow:hidden}
.sol .pic img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:saturate(.45) brightness(.92)}
.sol .pic .tint{opacity:.36}
.sol .body{padding:128px var(--edge) 128px 88px}
.sol h2{color:#fff}
.sol .body > p{margin-top:24px;font-size:16px;color:var(--g200);max-width:30em}
.sol ul{display:grid;grid-template-columns:1fr 1fr;column-gap:64px;margin-top:64px}
.sol li a{display:grid;grid-template-columns:40px 1fr;column-gap:18px;align-items:start;padding:26px 0 30px;color:var(--g200);position:relative}
.sol li a::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;
background:linear-gradient(90deg,currentColor 0 9px,transparent 9px 15px) 0 0/15px 2px repeat-x;opacity:.45;transition:opacity .3s}
.sol li a:hover::before,.sol li a:focus-visible::before{opacity:1}
.sol li h3{color:#fff;font-size:20px}
.sol li p{margin-top:6px;font-size:14px;color:var(--g300)}
.sol .tile,.svc .tile{width:40px;height:40px;border-radius:2px;display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.sol .tile{background:rgba(255,255,255,.08);color:var(--g100);margin-top:2px;transition:background-color .3s}
.sol li a:hover .tile,.sol li a:focus-visible .tile{background:rgba(255,255,255,.16)}
.sol .tile svg,.svc .tile svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
/* ⑥ 数字化生产 */
.dig .head p{margin-top:20px;font-size:17px;color:var(--ink2)}
.dig .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:48px;margin-top:64px}
.dig article{color:var(--g700)}
.dig .ic{width:36px;height:36px;margin:34px 0 26px}
.dig .ic svg{width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:1.3;stroke-linecap:round;stroke-linejoin:round}
.dig h3{color:var(--ink)}
.dig article p{margin-top:12px;font-size:15px;line-height:1.9;color:var(--ink2)}
.coop .head p{margin-top:20px;font-size:17px;color:var(--ink2)}
.coop .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:64px}
.coop article{border:1px solid var(--line);border-radius:2px;padding:40px 36px 44px;background:#fff}
.coop .mk{height:84px;display:flex;align-items:center}
.coop .mk img{height:76px;width:auto}
.coop .mk .ph{width:76px;height:76px;border:1.5px dashed var(--g300);border-radius:50%;display:flex;align-items:center;justify-content:center;
font-size:12px;color:var(--ink2);text-align:center;line-height:1.4}
.coop h3{margin-top:28px;font-size:22px;color:var(--ink)}
.coop .kind{display:block;margin-top:8px;font-size:13px;letter-spacing:.06em;color:var(--g700)}
.coop article p{margin-top:16px;padding-top:18px;font-size:15px;line-height:1.9;color:var(--ink2);border-top:1px solid var(--line)}
/* ───────── 页脚 ───────── */
footer{background:var(--g900);color:var(--g300);padding-top:104px;font-size:14px}
.ft{display:grid;grid-template-columns:3fr 6.6fr 3fr;gap:56px;padding-bottom:88px}
.ft .brand img{height:48px;width:auto}
.ft .brand dl{margin-top:36px;display:grid;grid-template-columns:auto 1fr;gap:10px 18px;line-height:1.7}
.ft .brand dt{color:var(--g200)}
.ft .soc{display:flex;gap:10px;margin-top:32px}
.ft .soc a{width:34px;height:34px;border-radius:50%;border:1px solid rgba(255,255,255,.22);display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--g200)}
.ft .soc a:hover{border-color:#fff;color:#fff}
.ft .cols{display:grid;grid-template-columns:repeat(4,auto);justify-content:space-between;gap:28px;white-space:nowrap}
.ft h4{font:500 15px/1 var(--sans);letter-spacing:.08em;color:#fff;margin-bottom:24px}
.ft .cols li{margin-bottom:12px}
.ft .cols a:hover{color:#fff}
.ft form{display:grid;gap:14px}
.ft input,.ft textarea{width:100%;background:transparent;border:0;border-bottom:1px solid rgba(255,255,255,.22);padding:10px 0;color:#fff;font-size:14px;outline:0;resize:none}
.ft input:focus,.ft textarea:focus{border-bottom-color:#fff}
.ft ::placeholder{color:var(--g300)}
.ft textarea{height:76px}
.ft .send{justify-self:start;margin-top:12px;background:#fff;color:var(--g900);border:0;border-radius:2px;padding:12px 30px;font-size:14px;letter-spacing:.1em;cursor:pointer}
.ft .send:hover{background:var(--g100)}
.ft .status{font-size:13px;color:var(--g100);min-height:1.5em}
.fb{border-top:1px solid rgba(255,255,255,.1);padding:26px 0 30px;display:flex;justify-content:space-between;gap:24px;color:var(--g300);font-size:13px}
.ft-stitch{color:var(--g500)}
/* 侧边工具 */
.tools{position:fixed;right:24px;bottom:28px;z-index:30;display:flex;flex-direction:column;gap:10px;
opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .3s,transform .3s,visibility .3s}
.tools.show{opacity:1;visibility:visible;transform:none}
.tools a,.tools button,.tools .copy-tool{width:46px;height:46px;border-radius:50%;background:#fff;border:1px solid var(--line);
display:flex;align-items:center;justify-content:center;color:var(--g700);cursor:pointer;box-shadow:0 10px 24px -14px rgba(42,60,50,.5)}
.tools a:hover,.tools button:hover{background:var(--g700);color:#fff;border-color:var(--g700)}
.tools svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
/* ───────── 响应式 ───────── */
@media (max-width:1180px){
.menu{margin-left:36px}.menu > li > a{padding:0 12px}
.menu > li > a[aria-current]::after{left:12px;right:12px}
.sol .body{padding:104px 40px 104px 56px}
}
@media (max-width:960px){
.wrap{padding:0 20px}
:root{--edge:20px}
.nav{height:68px}
.menu{display:none;position:fixed;top:68px;left:0;right:0;bottom:0;margin:0;height:auto;flex-direction:column;
background:var(--paper);color:var(--ink);padding:16px 20px;overflow:auto}
.nav.open .menu{display:flex}
.menu > li{display:block}
.menu > li > a{height:auto;padding:16px 0;border-bottom:1px solid var(--line);font-size:16px}
.menu > li > a[aria-current]::after,.caret,.drop{display:none}
.nav.open{background:var(--paper);color:var(--ink)}
.nav.open .logo .light{opacity:0}.nav.open .logo .dark{opacity:1}
.burger{display:block}
.logo{width:110px;height:38px}.logo img{height:38px}
.hero{min-height:600px}
.hero-copy{gap:28px;right:20px;bottom:170px}
.slogan{font-size:clamp(46px,13vw,64px)}
.hero-foot{flex-direction:column;align-items:flex-start;bottom:40px;gap:18px}
.sec{padding:88px 0}
h2{font-size:30px}
.intro .grid,.svc .grid{grid-template-columns:1fr}
.statement{font-size:25px}
.figs{gap:0;justify-content:space-between;margin-top:52px}
.figs b{font-size:42px}
.certs{grid-template-columns:1fr 1fr;gap:32px 20px;margin-top:44px;padding-top:32px}
.certs .mk{height:64px}
.svc .aside{position:static}
.svc li{grid-template-columns:40px 1fr;column-gap:18px;row-gap:8px;padding:28px 0}
.svc li p{grid-column:2}
.prod .head{flex-direction:column;align-items:flex-start;gap:16px}
.acc{display:grid;grid-template-columns:1fr 1fr;height:auto;gap:8px;margin-top:40px}
.acc a{aspect-ratio:3/4}
.acc .meta{opacity:1;transform:none;left:18px;right:14px;bottom:22px;white-space:normal}
.acc .meta b{font-size:13px;line-height:1.5}
.acc .meta span{display:none}
.acc .nm{top:20px;left:18px;font-size:24px}
.sol .grid{grid-template-columns:1fr}
.sol .pic{height:260px}
.sol .body{padding:72px 20px}
.sol ul{grid-template-columns:1fr;margin-top:40px}
.dig .grid{grid-template-columns:1fr 1fr;gap:32px 24px;margin-top:48px}
.coop .grid{grid-template-columns:1fr;gap:16px;margin-top:40px}
.coop article{padding:28px 24px 32px}
.ft{grid-template-columns:1fr;gap:56px;padding-bottom:56px}
.ft .cols{grid-template-columns:1fr 1fr;gap:28px;white-space:normal}
.fb{flex-direction:column}
.tools{right:14px;bottom:16px}
}
@media (max-width:520px){ .dig .grid{grid-template-columns:1fr} }
@media (prefers-reduced-motion:reduce){
*,*::before,*::after{animation:none!important;transition-duration:.01ms!important}
html{scroll-behavior:auto}
}
/* ═══════════════ 子页面 ═══════════════ */
/* 页头：深色带，导航透明叠在上面 */
.phero{position:relative;background:var(--g900);color:#fff;padding:180px 0 88px;overflow:hidden}
.phero::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(103deg,rgba(255,255,255,.022) 0 1px,transparent 1px 15px)}
.phero .wrap{position:relative}
.phero .bar{position:absolute;left:0;right:0;bottom:0;height:6px;background:var(--c,transparent)}
.crumb{font-size:13px;letter-spacing:.04em;color:var(--g300);margin-bottom:22px}
.crumb a{color:var(--g200)}
.crumb a:hover{color:#fff}
.phero h1{font:500 44px/1.35 var(--serif);letter-spacing:.06em}
.phero .lead{margin-top:16px;max-width:36em;font-size:16px;color:var(--g200)}
/* 正文排版 */
.prose{max-width:44em}
.prose p{font-size:16px;line-height:2;color:var(--ink2);margin-top:18px}
.prose p:first-child{margin-top:0}
.split{display:grid;grid-template-columns:3fr 9fr;gap:40px}
.split + .split{margin-top:96px}
.split > h2{font-size:30px}
.quote{font:400 26px/1.7 var(--serif);letter-spacing:.04em;color:var(--ink);max-width:22em;border-left:3px solid var(--g700);padding-left:24px}
.quote + .quote{margin-top:28px}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:40px}
.facts div{background:#fff;padding:28px 26px}
.facts b{display:block;font:400 40px/1.1 var(--serif);color:var(--g700)}
.facts span{display:block;margin-top:10px;font-size:14px;color:var(--ink2)}
.list{margin-top:8px}
.list li{position:relative;padding:14px 0 14px 22px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink2)}
.list li:first-child{border-top:1px solid var(--line)}
.list li::before{content:"";position:absolute;left:2px;top:24px;width:8px;height:2px;background:var(--g700)}
.list b{color:var(--ink);font-weight:500}
.todo{display:inline-block;margin-left:8px;font-size:12px;color:#8A5F12;background:#FBF3E3;border:1px dashed #E7D3A6;border-radius:2px;padding:0 6px}
/* 卡片网格（产品列表、合作伙伴） */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{display:block;border:1px solid var(--line);border-radius:2px;background:#fff;overflow:hidden;transition:border-color .3s,transform .3s}
a.card:hover{border-color:var(--g300);transform:translateY(-3px)}
.card .ph{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--g800)}
.card .ph img{width:100%;height:100%;object-fit:cover;filter:saturate(.82)}
.card .ph i{position:absolute;left:0;right:0;bottom:0;height:5px;background:var(--c,var(--g700))}
.card .bd{padding:24px 26px 28px}
.card h3{font-size:22px;color:var(--ink)}
.card .cat{display:block;margin-top:4px;font-size:13px;letter-spacing:.06em;color:var(--g700)}
.card p{margin-top:12px;font-size:14px;line-height:1.85;color:var(--ink2)}
/* 产品页 */
.pd{display:grid;grid-template-columns:5fr 7fr;gap:72px;align-items:start}
.pd .ph{aspect-ratio:4/5;border-radius:2px;overflow:hidden;background:var(--g800);position:relative}
.pd .ph img{width:100%;height:100%;object-fit:cover}
.pd .ph i{position:absolute;left:0;right:0;bottom:0;height:6px;background:var(--c,var(--g700))}
.pd h2{font-size:28px;margin-bottom:6px}
.pd .desc{font-size:16px;line-height:2;color:var(--ink2);margin-top:18px}
.pd h3{margin-top:40px;font-size:18px;color:var(--ink)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.chips span{font-size:14px;color:var(--g700);border:1px solid var(--g100);background:var(--g50);border-radius:2px;padding:5px 14px}
.adv{margin-top:12px}
.adv li{position:relative;padding:9px 0 9px 22px;font-size:15px;color:var(--ink2)}
.adv li::before{content:"";position:absolute;left:2px;top:20px;width:8px;height:2px;background:var(--g700)}
.cert-note{display:flex;align-items:center;gap:16px;margin-top:32px;padding:16px 20px;border:1px solid var(--line);background:var(--paper);font-size:14px;color:var(--ink2)}
.cert-note img{height:52px;width:auto}
.tables{display:grid;grid-template-columns:1fr 1fr;gap:48px;margin-top:8px}
.tables h3{font-size:18px;color:var(--ink);margin-bottom:14px}
table.t{width:100%;border-collapse:collapse;font-size:14px}
table.t th,table.t td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--line)}
table.t th{font-weight:500;color:var(--g900);background:var(--g50);font-size:13px;white-space:nowrap}
table.t td{color:var(--ink2)}
.kv li{display:grid;grid-template-columns:7em 1fr;gap:12px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink2)}
.kv li b{color:var(--ink);font-weight:500}
.scroll{overflow-x:auto}
.cta{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:44px 48px;background:var(--g900);color:#fff;border-radius:2px}
.cta h2{color:#fff;font-size:26px}
.cta p{margin-top:8px;color:var(--g200);font-size:15px}
.btn-l{display:inline-block;background:#fff;color:var(--g900);padding:13px 32px;border-radius:2px;font-size:14px;letter-spacing:.1em;white-space:nowrap}
.btn-l:hover{background:var(--g100)}
.sibs{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.sibs a{display:flex;align-items:center;gap:10px;border:1px solid var(--line);background:#fff;border-radius:2px;padding:9px 16px;font-size:14px;color:var(--ink2)}
.sibs a:hover{border-color:var(--g300);color:var(--ink)}
.sibs i{width:4px;height:18px;background:var(--c,var(--g700))}
/* 联系页 */
.contact{display:grid;grid-template-columns:5fr 7fr;gap:72px}
.contact dl{display:grid;grid-template-columns:5em 1fr;gap:16px 20px;font-size:16px;margin-top:8px}
.contact dt{color:var(--ink2)}
.contact dd{color:var(--ink)}
.contact .map{display:inline-block;margin-top:28px;font-size:14px;color:var(--g700);border-bottom:1px solid var(--g300);padding-bottom:2px}
.contact .msg input,.contact .msg textarea{width:100%;background:#fff;border:1px solid var(--line);border-radius:2px;padding:12px 14px;font-size:15px;outline:0}
.contact .msg input:focus,.contact .msg textarea:focus{border-color:var(--g700)}
.contact .msg textarea{height:150px;resize:vertical}
.contact .msg{display:grid;gap:14px}
.contact .send{justify-self:start;background:var(--g700);color:#fff;border:0;border-radius:2px;padding:13px 34px;font-size:14px;letter-spacing:.1em;cursor:pointer}
.contact .send:hover{background:var(--g900)}
.contact .status{font-size:14px;color:var(--g700);min-height:1.5em}
/* 表单通用 */
.msg .hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.msg .agree{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink2);cursor:pointer}
.msg .agree input{width:auto;accent-color:var(--g700)}
.msg .agree a{color:inherit;border-bottom:1px solid currentColor}
.ft .msg .agree{color:var(--g300)}
.ft.noform{grid-template-columns:3fr 9.6fr}
.fb a{color:var(--g300)}
.fb a:hover{color:#fff}
.prod .more{margin-top:28px;text-align:right}
.prod .more a{font-size:14px;letter-spacing:.06em;color:var(--g700);border-bottom:1px solid var(--g300);padding-bottom:2px}
.sol li a:not([href]){cursor:default}
.sol li a:not([href]):hover::before{opacity:.45}
.sol li a:not([href]):hover .tile{background:rgba(255,255,255,.08)}
@media (max-width:960px){
.phero{padding:124px 0 56px}
.phero h1{font-size:32px}
.split,.pd,.contact,.tables{grid-template-columns:1fr;gap:32px}
.split + .split{margin-top:64px}
.split > h2{font-size:26px}
.quote{font-size:21px}
.facts{grid-template-columns:1fr}
.cards{grid-template-columns:1fr;gap:16px}
.pd .ph{aspect-ratio:4/3}
.cta{flex-direction:column;align-items:flex-start;padding:32px 24px}
.ft.noform{grid-template-columns:1fr}
.prod .more{text-align:left}
}
.cards.two{grid-template-columns:repeat(2,1fr)}
@media (max-width:960px){.cards.two{grid-template-columns:1fr}}
.sol .pic .pattern{position:absolute;inset:0;width:100%;height:100%;display:block}
/* 染色流程图 */
.flow{list-style:none;display:grid;grid-template-columns:repeat(7,1fr);gap:0;margin-top:56px;position:relative}
.flow::before{content:"";position:absolute;left:calc(100%/14);right:calc(100%/14);top:45px;height:2px;
background:linear-gradient(90deg,var(--g300) 0 9px,transparent 9px 15px) 0 0/15px 2px repeat-x}
.flow li{position:relative;padding:0 14px;text-align:center}
.flow .fi{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;width:92px;height:92px;margin:0 auto;
border-radius:50%;background:var(--g50)}
.flow .fi svg{width:68px;height:68px}
.flow h3{margin-top:20px;font-size:18px;color:var(--ink)}
.flow p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--ink2)}
.loop{position:relative;margin:36px calc(100%/14) 0 calc(100%/7*2 + 100%/14);height:46px;
border:2px dashed var(--g300);border-top:0;border-radius:0 0 12px 12px}
.loop span{position:absolute;left:50%;bottom:-13px;transform:translateX(-50%);background:#fff;padding:0 16px;
font-size:14px;color:var(--g700);white-space:nowrap}
.loop::before{content:"";position:absolute;left:-7px;top:-8px;border:6px solid transparent;border-bottom:9px solid var(--g300)}
/* 客户标识墙 */
.logos{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:48px}
.logos li{list-style:none;background:#fff;height:132px;display:flex;align-items:center;justify-content:center;padding:20px}
.logos img{max-height:60px;max-width:72%;width:auto;height:auto;object-fit:contain}
/* 复制邮箱 */
.copy{display:inline-flex;align-items:center;gap:8px;background:none;border:0;padding:0;font:inherit;color:inherit;cursor:pointer;
border-bottom:1px solid currentColor;line-height:1.5}
.copy svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;opacity:.75}
.copy:hover{color:var(--g700)}
.ft .copy:hover{color:#fff}
.toast{position:fixed;left:50%;bottom:40px;transform:translate(-50%,12px);background:var(--g900);color:#fff;font-size:14px;
padding:12px 22px;border-radius:2px;box-shadow:0 12px 30px -12px rgba(42,60,50,.6);opacity:0;visibility:hidden;
transition:opacity .25s,transform .25s,visibility .25s;z-index:60}
.toast.show{opacity:1;visibility:visible;transform:translate(-50%,0)}
/* 认证：10 项排 5 列 */
.certs{grid-template-columns:repeat(5,1fr);column-gap:24px}
.badge.seal.four{width:62px;height:62px;padding:8px;font-size:18px}
@media (max-width:960px){
.flow{grid-template-columns:1fr;gap:0;margin-top:36px}
.flow::before{left:35px;right:auto;top:36px;bottom:36px;width:2px;height:auto;
background:linear-gradient(180deg,var(--g300) 0 9px,transparent 9px 15px) 0 0/2px 15px repeat-y}
.flow li{display:grid;grid-template-columns:72px 1fr;column-gap:18px;text-align:left;padding:0 0 28px}
.flow .fi{margin:0;grid-row:span 2;width:72px;height:72px}
.flow .fi svg{width:54px;height:54px}
.flow h3{margin-top:6px}
.flow p{margin-top:2px}
.loop{margin:4px 0 0;height:auto;border:0;padding-left:90px}
.loop span{position:static;transform:none;padding:0;white-space:normal}
.loop::before{display:none}
.logos{grid-template-columns:repeat(2,1fr)}
.logos li{height:104px}
.certs{grid-template-columns:1fr 1fr}
}
/* 资质荣誉：标识与文字居中 */
.certs li{align-items:center;text-align:center}
.certs .mk{justify-content:center;width:100%}
/* 为什么稳定：卡片 */
.why{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:48px}
.why article{background:#fff;border:1px solid var(--line);border-radius:2px;padding:32px 28px 34px}
.why .wi{display:flex;align-items:center;justify-content:center;width:72px;height:72px;border-radius:50%;background:var(--g50)}
.why .wi svg{width:48px;height:48px}
.why h3{margin-top:24px;font-size:19px;color:var(--ink)}
.why p{margin-top:10px;font-size:14px;line-height:1.85;color:var(--ink2)}
@media (max-width:960px){.why{grid-template-columns:1fr 1fr;gap:16px}.why article{padding:24px 20px}}
@media (max-width:520px){.why{grid-template-columns:1fr}}
/* 我们的服务：色卡扇动画 */
.svc-fan{margin-top:56px;width:112%;max-width:440px;margin-left:-4%}
.svc-fan svg{display:block;width:100%;height:auto}
@media (max-width:960px){.svc-fan{display:none}}
.more-link{display:inline-flex;align-items:center;gap:6px;margin-left:10px;font-size:14px;color:var(--g700);border-bottom:1px solid var(--g300);padding-bottom:1px;white-space:nowrap}
.more-link::after{content:"";width:6px;height:6px;border-top:1.5px solid currentColor;border-right:1.5px solid currentColor;transform:rotate(45deg)}
.more-link:hover{color:var(--g900);border-bottom-color:var(--g700)}