/* ==========================================================================
   北光恒电 BGHD · 仪器维修官网
   主样式表
   ========================================================================== */

:root{
  --blue:#004C97;            /* 主色：amaxchina 实测 rgb(0,76,151) */
  --blue-600:#003F7E;
  --blue-700:#00315E;
  --blue-50:#EAF0F7;
  --accent:#1A6CBE;          /* 强调蓝：替代原品牌绿，与主色同族 */
  --green:var(--accent);     /* 兼容旧引用，勿再直接使用 */
  --green-600:#155A9F;
  --ink:#0F151C;
  --ink-2:#161D26;
  --text:#1B2432;
  --text-2:#5A6675;
  --text-3:#8A94A3;
  --line:#E3E7EC;
  --line-2:#EDF0F3;
  --bg:#FFFFFF;
  --bg-soft:#EFF2F5;         /* 参考站区块浅底 */
  --gold:#C8A464;
  --r:2px;
  --shadow-sm:0 2px 10px rgba(15,21,28,.05);
  --shadow-md:0 10px 30px rgba(15,21,28,.08);
  --shadow-lg:0 24px 60px rgba(15,21,28,.14);
  --container:1440px;   /* 宽屏基准：1920 视口左右各留 240 */
  --ease:cubic-bezier(.19,1,.22,1);
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  --num:"Barlow","DIN Alternate","Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--text);background:var(--bg);
  font-size:15px;line-height:1.75;letter-spacing:.2px;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .3s var(--ease)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:14px;outline:none}
::selection{background:var(--blue);color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.container-wide{max-width:1600px}

/* ---------- 滚动条 ---------- */
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-thumb{background:#C6CDD7;border-radius:8px}
::-webkit-scrollbar-track{background:#F0F2F5}

/* ---------- 文本工具 ---------- */
.en{font-family:var(--num);letter-spacing:.12em;text-transform:uppercase}
.muted{color:var(--text-2)}
.tc{text-align:center}

/* ==========================================================================
   主导航（单行白条：左菜单 + 居中 logo + 右菜单，参考普源精电 rigol.com）
   ========================================================================== */
.header{position:sticky;top:0;z-index:55;background:#fff;border-bottom:1px solid #E6E8EA}
/* 非首页：不吸顶，随页面滚动（JS 里 no-sticky 标记对应的视觉行为） */
.header.no-sticky{position:relative}
/* 菜单遮罩（rigol 式：二级菜单 / 搜索面板展开时，页面其余部分压 32% 黑）
   层级 96：盖住正文与右侧悬浮工具条(90)、底部条(95)，
   header 在遮罩生效时临时抬到 100，保证菜单条与面板不被压暗。 */
.nav-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.32);z-index:96;
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .25s ease,visibility .25s ease;
}
body.menu-open .nav-overlay{opacity:1;visibility:visible;pointer-events:auto}
body.menu-open .header{z-index:100}
.header.is-fixed{
  box-shadow:0 6px 24px rgba(15,21,28,.10);border-bottom:0;
}
.header-inner{display:flex;align-items:center;height:76px;gap:0;width:100%;max-width:1600px;margin:0 auto;padding:0 20px}
.logo{order:-1;display:flex;align-items:center;flex:0 0 auto;margin:0 52px 0 0}
.logo img{height:38px;width:auto}
.logo.small img{height:30px}

.nav{display:flex;align-items:stretch;height:100%;flex:1}
.nav>li{position:relative;display:flex;align-items:center}
.nav>li>a{
  display:flex;align-items:center;gap:6px;height:100%;padding:0 12px;
  font-size:15.5px;font-weight:500;color:#333;position:relative;white-space:nowrap;
  letter-spacing:.02em;transition:color .25s var(--ease);
}
/* hover 展开由 JS hover-intent 驱动（.open），避免斜移掠过相邻项时面板消失 */
/* 参考 amaxchina：hover / 展开时文字转主色，底部推出一条 2px 蓝色短线 */
.nav>li>a::after{
  content:"";position:absolute;left:10px;right:10px;bottom:0;height:2px;background:var(--blue);
  transform:scaleX(0);transform-origin:center;transition:transform .28s var(--ease);
}
.nav>li>a:hover{color:var(--blue)}
.nav>li.open>a{color:var(--blue)}
.nav>li.open>a::after,.nav>li>a:hover::after{transform:scaleX(1)}
.d-caret{display:inline-flex;align-items:center;transition:transform .3s ease}
.d-caret svg{width:12px;height:12px}
.nav>li.open .d-caret{transform:rotate(180deg)}

/* 维修资讯 / 关于我们：窄下拉（顶部一条短蓝线 + 竖排链接），不吃满整行 */
.nav>li.has-drop{position:relative}
.nav>li.has-drop>.drop{
  position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(8px);
  min-width:178px;padding:8px 0;background:#fff;border:1px solid var(--line-2);
  box-shadow:0 18px 40px rgba(15,21,28,.12);z-index:60;
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
}
.nav>li.has-drop.open>.drop{
  opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%);
}
.nav>li.has-drop>.drop a{
  display:block;padding:9px 26px;font-size:14.5px;color:#333;white-space:nowrap;text-align:center;
  transition:color .25s var(--ease),background .25s var(--ease);
}
.nav>li.has-drop>.drop a:hover{color:var(--blue);background:#F7F9FB}

/* 下拉大面板（背景全屏宽贴边，内容与正文容器对齐，纯渐显无投影）
   top 必须 = header 高度 76px：写 75 会让面板压住菜单底部 2px 蓝线的下半截，
   hover 大面板时下划线只有 1px，窄下拉却是 2px，两者看起来不一样粗细。 */
.mega{
  position:fixed;left:0;right:0;top:76px;
  background:#fff;
  opacity:0;visibility:hidden;pointer-events:none;transition:opacity .25s ease,visibility .25s ease;z-index:70;
}
.nav>li.open .mega{opacity:1;visibility:visible;pointer-events:auto}
/* 面板内容区与顶部菜单条 1600 同宽对齐（含 20px 边距，与 header-inner 内容区等宽；背景可全宽，内容不能贴左） */
.mega-body{display:grid;grid-template-columns:224px 1fr;min-height:300px;width:100%;max-width:1600px;margin:0 auto;padding:0 20px}
.mega-body.plain{grid-template-columns:1fr;min-height:0;width:100%;max-width:1600px;margin:0 auto;padding:0 20px}
.mega-aside a:hover,.mega-aside a.on{background:#fff;color:var(--blue)}
.mega-aside a.on::before{content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;background:var(--blue)}
.mega-main{padding:24px}
.mega-title{font-size:13px;color:var(--text-3);letter-spacing:.08em;margin-bottom:14px;display:flex;justify-content:space-between;align-items:center}
.mega-title h3{font-size:15px;font-weight:600;color:var(--ink);margin:0;letter-spacing:0}
.mega-title a{color:var(--blue);font-size:12.5px}
/* 普通面板：粗体链接网格（rigol 式：800 字重、无背景） */
.mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px 12px}
.mega-grid a{font-size:15.5px;font-weight:600;color:#333;padding:10px 0;transition:color .3s}
.mega-grid a:hover{color:var(--blue)}
/* 产品分类网格（agitek 式：产品检索 18 类） */
.cat-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:6px 10px}
.cat-grid a{
  font-size:14px;color:var(--text-2);padding:9px 12px;border:1px solid transparent;background:var(--bg-soft);
  transition:all .3s var(--ease);white-space:nowrap;
}
.cat-grid a:hover{background:var(--blue);color:#fff;border-color:var(--blue)}
/* 仪器维修悬浮面板：4 列图标卡（#54）——浅灰底 + 白卡，图标用主色线性描边 */
.mega .cat-grid{grid-template-columns:repeat(4,1fr);gap:10px;padding:14px;background:var(--bg-soft);border:1px solid var(--line-2)}
.mega .cat-grid a{
  display:flex;align-items:center;gap:12px;padding:14px 16px;
  background:#fff;border:1px solid var(--line-2);color:var(--ink);
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease),color .3s var(--ease);
}
.mega .cat-grid a svg{width:22px;height:22px;flex:0 0 auto;color:var(--blue)}
.mega .cat-grid a:hover{
  background:#fff;border-color:var(--blue);color:var(--blue);box-shadow:0 8px 18px rgba(0,76,151,.10);
}
/* 面板只在桌面出现（≤1023 走移动抽屉），窄一点就收紧内边距，仍保持一行 4 个 */
@media(max-width:1279px){
  .mega .cat-grid{gap:8px;padding:12px}
  .mega .cat-grid a{padding:12px 13px;font-size:13.5px;gap:10px}
  .mega .cat-grid a svg{width:20px;height:20px}
}
/* 品牌墙（品牌检索 30 个 · 参考 agitek：logo 图 + hover 渐变遮罩显示品牌名） */
.mega-brands{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}
.mega-brands a{
  position:relative;display:block;height:48px;background:#fff;border:1px solid #E5E8EC;overflow:hidden;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease),transform .3s var(--ease);
}
.mega-brands img{width:100%;height:100%;object-fit:contain;padding:6px 12px;transition:transform .35s var(--ease)}
.mega-brands b{
  position:absolute;top:0;left:0;right:0;bottom:0;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(-90deg,#2E7CD6,var(--blue));color:#fff;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  opacity:0;transition:opacity .3s var(--ease);
}
.mega-brands a:hover{border-color:var(--blue);box-shadow:0 6px 18px rgba(0,76,151,.16);transform:translateY(-2px)}
.mega-brands a:hover img{transform:scale(1.06)}
.mega-brands a:hover b{opacity:1}
/* 窄一点时同步压矮，保持与「仪器维修」面板等高（#57 实测 1024 下两者差 31px） */
@media(max-width:1279px){
  .mega-brands{gap:8px}
  .mega-brands a{height:43px}
  .mega-brands img{padding:5px 10px}
}

.hd-left{display:flex;align-items:center;gap:0;flex:0 0 auto;min-width:0;align-self:stretch}
.hd-left .nav{margin-left:0;flex:0 0 auto} /* logo 置左后菜单紧贴其后 */
/* 右栏菜单与左栏菜单首尾相接，视觉上连成一条（跨段间距 = 两侧各 12px padding） */
.hd-right .nav{justify-content:flex-start;flex:0 0 auto}
/* 右栏撑满剩余空间，按钮组 margin-left:auto 推到最右 */
.hd-right{display:flex;align-items:center;gap:0;flex:1 1 auto;justify-content:flex-end;min-width:0;align-self:stretch}
.hd-actions{display:flex;align-items:center;gap:14px;margin-left:auto;padding-left:18px}
.hd-tel{display:inline-flex;align-items:center;gap:7px;font-family:var(--num);font-size:15px;font-weight:700;color:var(--ink);letter-spacing:.04em;white-space:nowrap}
.hd-tel svg{color:var(--blue)}
.hd-tel:hover{color:var(--blue)}
.btn-quote{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 22px;background:var(--blue);color:#fff;
  font-size:14px;font-weight:500;transition:all .3s var(--ease);white-space:nowrap;
}
.btn-quote:hover{background:var(--blue-700);color:#fff}
.btn-quote i{font-style:normal;font-family:var(--num);font-size:11px;opacity:.6;letter-spacing:.1em}

/* 搜索 */
/* 撑满 header 高度，消除按钮与面板之间的真空区（否则悬浮移向面板时会断 hover） */
.search-wrap{position:relative;display:flex;align-items:center;align-self:stretch}
.search-btn{width:54px;height:44px;display:grid;place-items:center;color:#000;transition:all .3s}
.search-btn:hover{color:var(--blue)}
/* 搜索弹窗（rigol 式：全屏宽白面板 + 居中 688px 下划线输入框 + 居中胶囊提交按钮）
   展开方式：悬浮（.search-wrap:hover）—— 面板是 wrap 的 DOM 子元素，fixed 定位不影响 :hover 向祖先冒泡；
   .open 是点击/触摸的兜底态。 */
.search-panel{
  position:fixed;left:0;right:0;top:76px;background:#fff;padding:40px 24px 48px;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:75;
}
.search-wrap:hover .search-panel,
.search-panel.open{opacity:1;visibility:visible}
.search-wrap:hover .search-btn{color:var(--blue)}
.search-inner{max-width:688px;margin:0 auto}
.search-box{position:relative;display:block}
.search-ic{position:absolute;left:16px;top:17px;color:#000;pointer-events:none}
.search-box input{
  width:100%;height:56px;border:0;border-bottom:1px solid #B8BCC1;background:#fff;outline:none;
  font-size:14px;color:#353535;padding:16px 48px 16px 56px;
}
.search-box input::placeholder{color:#9AA1AA}
.search-clear{position:absolute;right:12px;top:18px;color:#8A94A3;display:none;padding:0}
.search-box.has-val .search-clear{display:block}
.search-clear:hover{color:#000}
.search-go-wrap{text-align:center;margin-top:48px}
.search-go{
  display:inline-flex;align-items:center;justify-content:center;height:32px;padding:0 22px;
  background:var(--blue);color:#fff;font-size:14px;font-weight:600;border-radius:999px;
  transition:background .3s;
}
.search-go:hover{background:var(--blue-700)}

/* 汉堡 */
.burger{display:none;width:44px;height:44px;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.burger span{display:block;width:22px;height:1.6px;background:var(--ink);transition:.35s var(--ease)}
body.nav-open .burger span:nth-child(1){transform:translateY(6.6px) rotate(45deg)}
body.nav-open .burger span:nth-child(2){opacity:0}
body.nav-open .burger span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg)}

/* 移动端抽屉 */
.m-nav{
  position:fixed;inset:0;background:#fff;z-index:200;transform:translateX(100%);transition:transform .42s var(--ease);
  display:flex;flex-direction:column;
}
body.nav-open .m-nav{transform:translateX(0)}
.m-nav-head{display:flex;align-items:center;justify-content:space-between;height:64px;padding:0 18px;border-bottom:1px solid var(--line-2)}
.m-nav-head img{height:28px}
.m-close{font-size:26px;line-height:1;color:var(--text-2);padding:6px}
.m-nav-body{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch}
.m-nav-body>li{border-bottom:1px solid var(--line-2)}
.m-nav-body>li>a,.m-nav-body>li>button{
  display:flex;align-items:center;justify-content:space-between;width:100%;padding:17px 18px;font-size:16px;font-weight:600;text-align:left;
}
.m-nav-body .sub{max-height:0;overflow:hidden;transition:max-height .4s var(--ease);background:var(--bg-soft)}
.m-nav-body .has-sub>button .caret{color:var(--text-3);transition:transform .35s var(--ease)}
.m-nav-body .has-sub>button{color:var(--ink)}
.m-nav-body .sub.open{max-height:640px}
.m-nav-body .sub a{display:block;padding:11px 18px 11px 34px;font-size:14px;color:var(--text-2);border-top:1px dashed var(--line)}
.m-nav-foot{padding:16px 18px 26px;border-top:1px solid var(--line-2)}
.m-nav-foot .btn{width:100%;justify-content:center}
.m-nav-foot .tel{display:block;text-align:center;margin-top:14px;font-family:var(--num);font-size:22px;color:var(--blue);letter-spacing:.04em;font-weight:700}

/* ==========================================================================
   按钮
   ========================================================================== */
.btn{
  display:inline-flex;align-items:center;gap:12px;height:50px;padding:0 32px;font-size:14.5px;font-weight:500;
  position:relative;overflow:hidden;transition:all .4s var(--ease);border:1px solid transparent;
}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-700);color:#fff}
.btn-primary .arw{transition:transform .4s var(--ease)}
.btn-primary:hover .arw{transform:translateX(5px)}
.btn-ghost{border-color:rgba(255,255,255,.45);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-outline{border-color:var(--line);color:var(--text)}
.btn-outline:hover{border-color:var(--blue);color:var(--blue)}
.btn-sm{height:42px;padding:0 22px;font-size:13.5px}
.arw{width:18px;height:1px;background:currentColor;position:relative;display:inline-block;flex:0 0 auto}
.arw::after{content:"";position:absolute;right:0;top:-3px;width:7px;height:7px;border-top:1px solid currentColor;border-right:1px solid currentColor;transform:rotate(45deg)}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-2);border-bottom:1px solid transparent;padding-bottom:2px}
.link-more:hover{color:var(--blue);border-color:var(--blue)}

/* ==========================================================================
   章节标题
   ========================================================================== */
.sec{padding:104px 0;position:relative}
.sec.soft{background:var(--bg-soft)}
.sec-head{margin-bottom:56px}
.sec-head.center{text-align:center}
.sec-head .eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-family:var(--num);font-size:12px;letter-spacing:.22em;
  color:var(--blue);text-transform:uppercase;margin-bottom:16px;
}
.sec-head .eyebrow::before{content:"";width:22px;height:1px;background:var(--blue)}
.sec-head.center .eyebrow::after{content:"";width:22px;height:1px;background:var(--blue)}
.sec-head h2{font-size:38px;line-height:1.28;font-weight:600;letter-spacing:.5px;color:var(--ink)}
.sec-head h2 em{font-style:normal;color:var(--blue)}
.sec-head p{margin-top:16px;color:var(--text-2);font-size:15.5px;max-width:720px}
.sec-head.center p{margin-left:auto;margin-right:auto}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:30px}

/* ==========================================================================
   首页 Hero 轮播
   ========================================================================== */
.hero{position:relative;height:calc(100vh - 77px);height:calc(100svh - 77px);min-height:600px;overflow:hidden;background:var(--ink)}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 1s var(--ease)}
.hero-slide.on{opacity:1}
.hero-slide .bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:1;z-index:0}
.hero-slide .bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(7,14,26,.92) 0%,rgba(7,14,26,.78) 38%,rgba(7,14,26,.25) 68%,rgba(7,14,26,.35) 100%);
}
.hero-inner{position:relative;z-index:2;height:100%;display:flex;align-items:center}
.hero-ctrl,.hero-idx,.scroll-hint{z-index:5}
.hero-txt{max-width:720px;color:#fff;padding:26px 0 20px}
.hero-txt .kicker{
  display:inline-flex;align-items:center;gap:12px;font-size:13px;letter-spacing:.18em;color:rgba(255,255,255,.72);
  margin-bottom:26px;font-family:var(--num);
}
.hero-txt .kicker::before{content:"";width:40px;height:1px;background:var(--accent)}
.hero-txt h1{font-size:clamp(34px,3.6vw,56px);line-height:1.24;font-weight:600;letter-spacing:1px}
.hero-txt h1 em{font-style:normal;color:#fff;position:relative;display:inline-block}
.hero-txt h1 em::after{content:"";position:absolute;left:-2px;right:-2px;bottom:4px;height:12px;background:rgba(26,108,190,.40);z-index:-1;transform-origin:left;animation:markIn 1.1s .5s var(--ease) both}
@keyframes markIn{from{transform:scaleX(0)}to{transform:scaleX(1)}}
.hero-txt p{margin-top:22px;font-size:16px;color:rgba(255,255,255,.74);letter-spacing:2px}
.hero-meta{display:flex;gap:0;margin-top:38px;border-top:1px solid rgba(255,255,255,.16);padding-top:26px;max-width:560px}
.hero-meta div{flex:1;padding-right:18px}
.hero-meta b{display:block;font-family:var(--num);font-size:32px;font-weight:600;letter-spacing:.02em;line-height:1.1}
.hero-meta b span{font-size:14px;margin-left:3px;color:var(--accent)}
.hero-meta small{font-size:12.5px;color:rgba(255,255,255,.55);letter-spacing:1px}
.hero-actions{display:flex;gap:16px;margin-top:40px;flex-wrap:wrap}

.hero-ctrl{position:absolute;right:max(24px,calc((100% - var(--container))/2 + 24px));bottom:56px;z-index:5;display:flex;align-items:center;gap:26px}
.hero-dots{display:flex;gap:14px}
.hero-dots button{width:30px;height:2px;background:rgba(255,255,255,.28);position:relative;padding:0}
.hero-dots button span{position:absolute;left:0;top:0;height:100%;width:0;background:#fff}
.hero-dots button.on span{animation:dotfill 6s linear forwards}
@keyframes dotfill{from{width:0}to{width:100%}}
.hero-arrows{display:flex;gap:1px}
.hero-arrows button{width:52px;height:52px;border:1px solid rgba(255,255,255,.3);display:grid;place-items:center;color:#fff;transition:all .3s}
.hero-arrows button:hover{background:#fff;color:var(--ink);border-color:#fff}
.hero-idx{position:absolute;left:max(24px,calc((100% - var(--container))/2 + 24px));bottom:60px;z-index:5;color:rgba(255,255,255,.5);font-family:var(--num);font-size:13px;letter-spacing:.2em}
.hero-idx b{color:#fff;font-size:20px;margin-right:4px}
.scroll-hint{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);z-index:5;color:rgba(255,255,255,.45);font-size:11px;letter-spacing:.22em;font-family:var(--num);text-align:center}
.scroll-hint::after{content:"";display:block;width:1px;height:26px;background:linear-gradient(rgba(255,255,255,.5),transparent);margin:8px auto 0;animation:hint 2s infinite}
@keyframes hint{0%{transform:scaleY(.3);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}100%{transform:scaleY(.3);transform-origin:bottom}}

/* 悬浮客服（参考 amaxchina：右下角竖排按钮 + 白底深蓝描边气泡） */
.side-dock{
  position:fixed;right:18px;bottom:90px;z-index:93;
  display:flex;flex-direction:column;gap:10px;
}
.side-dock>a{
  position:relative;z-index:2;width:52px;height:52px;background:#fff;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  color:var(--text-2);font-size:10.5px;line-height:1;
  border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow-sm);
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.side-dock>a:hover,.side-dock>a:focus-visible{background:var(--blue);color:#fff;border-color:var(--blue);box-shadow:0 12px 26px rgba(0,76,151,.26)}
.side-dock>a svg{width:19px;height:19px}

/* 悬停气泡：白底 + 2px 深蓝描边 + 右向三角（同参考站） */
.side-dock>a::after{
  content:attr(data-tip);position:absolute;right:calc(100% + 13px);top:50%;
  transform:translate(8px,-50%);white-space:nowrap;
  padding:10px 15px;background:#fff;color:var(--text);
  font-size:13.5px;font-weight:500;letter-spacing:.02em;line-height:1;
  border:2px solid var(--blue-700);border-radius:12px;
  box-shadow:0 12px 28px rgba(15,21,28,.13);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s;
}
.side-dock>a::before{
  content:"";position:absolute;right:calc(100% + 5px);top:50%;
  transform:translate(8px,-50%);width:0;height:0;
  border-left:8px solid var(--blue-700);border-top:7px solid transparent;border-bottom:7px solid transparent;
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s;
}
.side-dock>a:hover::after,.side-dock>a:focus-visible::after,
.side-dock>a:hover::before,.side-dock>a:focus-visible::before{opacity:1;visibility:visible;transform:translate(0,-50%)}

/* 首次进入的问候气泡 */
.sd-hello{
  position:absolute;right:calc(100% + 14px);top:0;width:272px;
  padding:16px 34px 16px 18px;background:#fff;
  border:2px solid var(--blue-700);border-radius:14px;
  box-shadow:0 18px 42px rgba(15,21,28,.16);
  color:#333;font-size:13px;line-height:1.68;
  opacity:0;visibility:hidden;transform:translateX(10px);
  transition:opacity .34s var(--ease),transform .34s var(--ease),visibility .34s;
}
.sd-hello.on{opacity:1;visibility:visible;transform:none}
/* 只在鼠标落到「按钮」上时收起问候气泡。原来写 .side-dock:hover 会连同气泡自身的悬停一起命中：
   鼠标一进气泡 → 气泡被隐藏 → :hover 消失 → 气泡复现 → 再命中，形成闪烁 */
.side-dock:has(>a:hover) .sd-hello{opacity:0;visibility:hidden;transform:translateX(6px)}
.sd-hello::after{
  content:"";position:absolute;right:-10px;top:22px;width:0;height:0;
  border-left:10px solid var(--blue-700);border-top:8px solid transparent;border-bottom:8px solid transparent;
}
.sd-hello p{margin:0}
.sd-hello .sd-tel{
  display:inline-block;margin-top:6px;font-family:var(--num);white-space:nowrap;
  font-size:18px;font-weight:700;color:var(--blue);letter-spacing:.02em;
}
.sd-x{
  position:absolute;top:6px;right:6px;width:22px;height:22px;padding:0;
  display:grid;place-items:center;border:0;border-radius:50%;
  background:none;color:var(--text-3);font-size:17px;line-height:1;cursor:pointer;
  transition:background .25s,color .25s;
}
.sd-x:hover{background:var(--bg-soft);color:var(--text)}
@media(max-width:1023px){.side-dock{display:none}}

/* 全站统一「回到顶部」（滚动 >400px 淡入，层级 94：低于导航遮罩 96 / 移动端底栏 95） */
.to-top{
  position:fixed;right:18px;bottom:24px;z-index:94;
  width:52px;height:52px;display:grid;place-items:center;
  background:#fff;color:var(--text-2);border:1px solid var(--line);box-shadow:var(--shadow-md);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .32s var(--ease),transform .32s var(--ease),visibility .32s,background .3s,color .3s,border-color .3s;
}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--blue);color:#fff;border-color:var(--blue)}
@media(max-width:1023px){
  .to-top{right:12px;bottom:70px;width:44px;height:44px}
  .to-top svg{width:18px;height:18px}
}

/* ==========================================================================
   首页 · 维修产品（1行5列 × 3行）
   ========================================================================== */
.cat-pills{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:38px;justify-content:flex-start}
.cat-pills a{
  padding:9px 20px;border:1px solid var(--line);font-size:14px;color:var(--text-2);background:#fff;transition:all .3s var(--ease);
}
.cat-pills a.on,.cat-pills a:hover{background:var(--ink);color:#fff;border-color:var(--ink)}

.prod-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--line-2);border:1px solid var(--line-2)}
.prod-card{
  background:#fff;padding:26px 22px 24px;position:relative;transition:all .45s var(--ease);overflow:hidden;
}
.prod-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--blue);
  transform:scaleX(0);transform-origin:left;transition:transform .45s var(--ease);
}
.prod-card:hover{background:#fff;box-shadow:0 18px 40px rgba(15,21,28,.10);z-index:2;transform:translateY(-4px)}
.prod-card:hover::before{transform:scaleX(1)}
.prod-img{height:132px;display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.prod-img img{max-height:100%;width:auto;object-fit:contain;transition:transform .55s var(--ease)}
.prod-card:hover .prod-img img{transform:scale(1.06)}
.prod-brand{font-family:var(--num);font-size:11px;letter-spacing:.16em;color:var(--text-3);text-transform:uppercase;margin-bottom:6px}
.prod-name{font-size:15px;font-weight:600;color:var(--ink);line-height:1.5;height:46px;overflow:hidden}
.prod-tags{margin-top:12px;display:flex;flex-wrap:wrap;gap:6px}
.prod-tags span{font-size:11.5px;color:var(--text-2);background:var(--bg-soft);padding:2px 8px}
.prod-go{
  position:absolute;right:20px;bottom:22px;width:26px;height:26px;border:1px solid var(--line);display:grid;place-items:center;
  color:var(--text-3);opacity:0;transform:translateX(-6px);transition:all .4s var(--ease);
}
.prod-card:hover .prod-go{opacity:1;transform:none;border-color:var(--blue);background:var(--blue);color:#fff}

/* ==========================================================================
   首页 · 维修产品（新版：参考 siglent 商品网格，4 列 / 参数三栏 / 左上角标）
   仅首页使用，类名 p-* 与 products.html 的 prod-* 互不影响
   ========================================================================== */
.prod-sec{background:var(--bg-soft)}
.prod-sec .sec-head{margin-bottom:30px}
.prod-sec .cat-pills{gap:4px;margin-bottom:32px}
.prod-sec .cat-pills a{
  height:38px;display:inline-flex;align-items:center;padding:0 24px;
  background:#fff;border:0;font-size:13.5px;color:#4C5766;
}
.prod-sec .cat-pills a.on,.prod-sec .cat-pills a:hover{background:#1E2837;color:#fff}
/* 筛选条每个都带「维修」后总宽多出约 200px：≤1199 收紧内边距与字号，
   让 8 个按钮在 1024/900 下仍是一整行，不出现「7 个 + 1 个」的落单 */
@media(max-width:1199px){
  .prod-sec .cat-pills a{padding:0 14px;font-size:13px}
}

.p-grid{display:flex;flex-wrap:wrap;gap:1px;background:#E6E9EE}
.p-card{
  position:relative;display:flex;flex-direction:column;background:#fff;
  flex:0 0 calc((100% - 3px)/4);min-width:0;   /* 4 列（含 3 条 1px 分隔） */
  padding:34px 24px 24px;min-height:498px;
  transition:box-shadow .4s var(--ease);
}
.p-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--blue);
  transform:scaleX(0);transform-origin:left;transition:transform .45s var(--ease);z-index:3;
}
.p-card:hover::before{transform:scaleX(1)}
.p-card:hover{box-shadow:0 16px 38px rgba(15,21,28,.09);z-index:2}
.p-flag{
  position:absolute;left:0;top:0;padding:2px 11px 3px;font-size:11.5px;line-height:1.55;letter-spacing:.06em;
  color:#fff;background:linear-gradient(180deg,#0F62B8,#004C97);border-bottom-right-radius:4px;
}
.p-cat{display:flex;align-items:baseline;justify-content:space-between;gap:10px;font-size:15px;color:#5D6775;line-height:1.5}
.p-model{
  margin:5px 0 0;font-family:var(--num);font-size:26px;font-weight:500;letter-spacing:.01em;
  color:#141C2B;line-height:1.3;transition:color .3s var(--ease);
}
.p-card:hover .p-model{color:var(--blue)}
.p-specs{display:grid;grid-template-columns:repeat(3,1fr);margin:22px 0 0;padding:0}
.p-specs>div{padding-left:16px;border-left:1px solid #E3E7EC;min-width:0}
.p-specs>div:first-child{padding-left:0;border-left:0}
.p-specs dt{font-size:12.5px;color:#838D9C;line-height:1.7}
.p-specs dd{margin:1px 0 0;font-size:16px;color:#1E2735;line-height:1.5;white-space:nowrap;font-family:var(--num);letter-spacing:.01em}
.p-pic{flex:1;display:flex;align-items:center;justify-content:center;margin:16px 0 14px;min-height:180px}
.p-pic img{max-width:100%;max-height:228px;width:auto;object-fit:contain;transition:transform .6s var(--ease)}
.p-card:hover .p-pic img{transform:scale(1.04)}
.p-more{display:inline-flex;align-items:center;gap:9px;font-size:14px;color:#4E5967;transition:color .3s var(--ease)}
.p-more svg{width:15px;height:15px;transition:transform .35s var(--ease)}
.p-card:hover .p-more{color:var(--blue)}
.p-card:hover .p-more svg{transform:translateX(4px)}

@media(max-width:1439px){
}
@media(max-width:1279px){
  .p-card{min-height:470px;padding:32px 20px 22px}
  .p-model{font-size:23px}
  .p-cat{font-size:14px}
  .p-specs>div{padding-left:10px}
  .p-specs dt{font-size:11.5px}
  .p-specs dd{font-size:13.5px}
  .p-pic{min-height:150px}
  .p-pic img{max-height:176px}
}
/* 8 张卡片在 2 列下正排满 4 行；避免 3 列时末行留空格 */
@media(max-width:1023px){
  .p-card{flex-basis:calc((100% - 1px)/2)}     /* 2 列 */
  .p-card{min-height:430px;padding:30px 24px 22px}
  .p-model{font-size:24px}
  .p-specs{margin-top:20px}
  .p-specs>div{padding-left:14px}
  .p-specs dt{font-size:12px}
  .p-specs dd{font-size:15px}
  .p-pic{min-height:150px}
  .p-pic img{max-height:184px}
  .prod-sec .cat-pills a{height:34px;padding:0 16px;font-size:13px}
}
@media(max-width:767px){
  .p-card{flex-basis:calc((100% - 1px)/2);min-height:0;padding:26px 16px 18px}
  .p-flag{font-size:10.5px;padding:1px 8px 2px}
  .p-cat{font-size:13px}
  .p-model{font-size:20px}
  .p-specs{grid-template-columns:1fr;margin-top:14px}
  .p-specs>div{
    display:flex;align-items:baseline;justify-content:space-between;gap:8px;
    padding:5px 0;border-left:0;border-top:1px solid var(--line-2);
  }
  .p-specs>div:first-child{border-top:0;padding-top:0}
  .p-specs dd{margin:0;font-size:13.5px}
  .p-pic{margin:12px 0 10px;min-height:96px}
  .p-pic img{max-height:112px}
  .p-more{font-size:13px;gap:6px}
  .p-more svg{width:13px;height:13px}
}
/* 手机单列：卡片回到通栏，参数恢复三栏（比两列更耐看） */
@media(max-width:480px){
  .p-card{flex-basis:100%}
  .p-card{min-height:0;padding:26px 18px 18px}
  .p-model{font-size:22px}
  .p-specs{grid-template-columns:repeat(3,1fr);margin-top:16px}
  .p-specs>div{display:block;padding:0 0 0 12px;border-left:1px solid #E3E7EC;border-top:0}
  .p-specs>div:first-child{padding-left:0;border-left:0}
  .p-specs dt{font-size:11.5px}
  .p-specs dd{margin:1px 0 0;font-size:14px}
  .p-pic{margin:14px 0 12px;min-height:140px}
  .p-pic img{max-height:170px}
  .p-more{font-size:13.5px;gap:8px}
}

/* ==========================================================================
   维修品牌墙
   ========================================================================== */
.brand-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;background:var(--line-2);border:1px solid var(--line-2)}
.brand-item{
  background:#fff;height:104px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  position:relative;transition:all .35s var(--ease);
}
.brand-item .nm{font-family:var(--num);font-size:16px;font-weight:700;letter-spacing:.16em;color:#8E99A8;transition:color .35s}
.brand-item .cn{font-size:12px;color:var(--text-3);transition:color .35s}
.brand-item:hover{background:var(--ink)}
.brand-item:hover .nm{color:#fff}
.brand-item:hover .cn{color:rgba(255,255,255,.6)}

/* ==========================================================================
   维修优势（深色）
   ========================================================================== */
.adv .sec-head h2{color:#fff}
.adv .sec-head p{color:rgba(255,255,255,.62)}
.adv .sec-head .eyebrow{color:var(--accent)}
.adv .sec-head .eyebrow::before,.adv .sec-head .eyebrow::after{background:var(--accent)}
.adv-item .idx{font-family:var(--num);font-size:13px;color:rgba(255,255,255,.32);letter-spacing:.1em}
.adv-item .ico{width:44px;height:44px;border:1px solid rgba(255,255,255,.2);display:grid;place-items:center;color:var(--accent)}
.adv-item .ico svg{width:20px;height:20px}

/* ==========================================================================
   数据条
   ========================================================================== */

/* ==========================================================================
   资讯
   ========================================================================== */
.news-tabs{display:flex;gap:34px;margin-bottom:34px;border-bottom:1px solid var(--line)}
.news-tab{font-size:16px;color:var(--text-2);padding-bottom:14px;position:relative;display:flex;flex-direction:column;text-align:left}
.news-tab small{font-family:var(--num);font-size:10.5px;letter-spacing:.16em;color:var(--text-3);text-transform:uppercase}
.news-tab.on{color:var(--ink);font-weight:600}
.news-tab.on::after{content:"";position:absolute;left:0;bottom:-1px;width:100%;height:2px;background:var(--blue)}
.news-tab.on small{color:var(--blue)}

.news-feature .txt{position:relative;z-index:2;padding:36px;width:100%;background:linear-gradient(transparent,rgba(7,14,26,.92))}
.news-feature .tag{display:inline-block;font-size:11.5px;letter-spacing:.14em;background:var(--blue);color:#fff;padding:4px 10px;margin-bottom:14px;font-family:var(--num)}
.news-feature .date{color:rgba(255,255,255,.5);font-family:var(--num);font-size:12.5px;margin-top:16px;letter-spacing:.08em}

.news-list .m{font-size:12.5px;color:var(--text-3);font-family:var(--num);letter-spacing:.06em;white-space:nowrap;text-align:right}
.news-list .m em{display:block;font-style:normal;font-family:var(--font);color:var(--text-3);font-size:12px;margin-top:4px}

/* ==========================================================================
   关于 + 合作单位
   ========================================================================== */
.about-layout{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.about-copy h2{font-size:36px;line-height:1.3;font-weight:600;color:var(--ink);margin-bottom:22px}
.about-copy p{color:var(--text-2);font-size:15px;margin-bottom:16px}
.about-sign{display:flex;gap:36px;margin-top:30px;flex-wrap:wrap}
.about-sign div{border-left:2px solid var(--blue);padding-left:16px}
.about-sign b{display:block;font-size:20px;color:var(--ink);font-family:var(--num);letter-spacing:.02em}
.about-sign small{color:var(--text-3);font-size:12.5px}
.about-imgs{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:200px 200px;gap:12px}
.about-imgs div{overflow:hidden;background:var(--bg-soft)}
.about-imgs div:first-child{grid-row:span 2}
.about-imgs img{width:100%;height:100%;object-fit:cover;transition:transform .9s var(--ease)}
.about-imgs div:hover img{transform:scale(1.06)}

/* ---------- 合作单位：静态 logo 墙（首页 30 格 5×6，合作单位页 37 个分三组） ---------- */
.coop-sec{background:#fff;padding:80px 0 88px}
.coop-sec .sec-head{margin-bottom:42px}
.coop-sec .sec-head p{margin-top:12px;font-size:14.5px;color:var(--text-2)}

/* 5 列等分，行/列之间透出 1px 分隔线（与产品网格同一套画法） */
/* 网格线改用「上/左外框 + 每格 右/下边框」，这样行不满时（如合作单位页 11 个 / 5 列）
   最后一行不会拖出一条灰底，空位就是纯白 */
.partner-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:0;background:#fff;border-top:1px solid var(--line-2);border-left:1px solid var(--line-2)}
.partner-item{
  display:flex;align-items:center;justify-content:center;
  padding:26px 18px;background:#fff;text-align:center;
  border-right:1px solid var(--line-2);border-bottom:1px solid var(--line-2);
  transition:box-shadow .3s var(--ease);
  min-width:0; /* 1fr 轨道的 auto 最小值会被 logo 的 max-width 顶开，768 附近会溢出 7px */
}
/* 分类小标题（合作单位页） */
.coop-group+.coop-group{margin-top:52px}
.coop-cat{
  display:flex;align-items:baseline;gap:12px;margin:0 0 18px;
  font-size:18px;font-weight:600;color:var(--ink);letter-spacing:.02em;
}
.coop-cat::before{content:"";width:22px;height:2px;background:var(--blue);transform:translateY(-4px)}
.coop-cat small{font-family:var(--num);font-size:11.5px;font-weight:500;color:var(--text-3);letter-spacing:.12em}
/* logo 已裁掉白边，用「最大宽/高」双重约束：宽图不被压扁、高图不顶破格子 */
.partner-item img{
  width:auto;height:auto;max-width:min(152px,100%);max-height:48px;object-fit:contain;
  opacity:.9;transition:opacity .3s var(--ease);
}
.partner-item:hover{box-shadow:inset 0 0 0 1px rgba(0,76,151,.22)}
.partner-item:hover img{opacity:1}
/* 合作单位：两行图标匀速滚动（鼠标移入暂停）—— #66 恢复 10-24 版
   参照 amaxchina 生态合作：无卡片边框，logo 直接铺在白底上，每格固定 148×47，
   悬停时 logo 淡出、单位名称浮现在同一位置；两侧白色渐隐收边。 */
.partner-marquee{position:relative;overflow:hidden;display:flex;flex-direction:column;gap:34px;padding:4px 0;
  max-width:var(--container);margin:0 auto}   /* 限宽到正文容器，跟左侧标题同一条基线 */
.partner-marquee::before,.partner-marquee::after{content:"";position:absolute;top:0;bottom:0;width:130px;z-index:2;pointer-events:none}
.partner-marquee::before{left:0;background:linear-gradient(90deg,#fff 0%,rgba(255,255,255,.94) 34%,rgba(255,255,255,0) 100%)}
.partner-marquee::after{right:0;background:linear-gradient(-90deg,#fff 0%,rgba(255,255,255,.94) 34%,rgba(255,255,255,0) 100%)}
.partner-track{display:flex;gap:56px;width:max-content;animation:marquee 64s linear infinite}
/* 尾部补一个 gap，translateX(-50%) 才与「一份内容」等长，循环无跳变 */
.partner-track{padding-right:56px}
/* 两行同向、相位错开一半：整体像一条缓慢平移的 logo 墙，不再左右对撞 */
.partner-track:nth-child(2){animation-duration:64s;animation-delay:-32s}
.partner-marquee:hover .partner-track{animation-play-state:paused}
@keyframes marquee{to{transform:translateX(-50%)}}
.partner-marquee .partner-item{
  position:relative;flex:0 0 auto;width:148px;height:47px;
  display:grid;place-items:center;padding:0;border:0;background:transparent;min-width:auto;
}
.partner-marquee .partner-item img{
  max-width:148px;max-height:47px;width:auto;object-fit:contain;opacity:1;
  transition:opacity .24s var(--ease);
}
.partner-marquee .partner-item:hover{box-shadow:none}
.partner-marquee .partner-item .pi-name{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) translateY(4px);
  white-space:nowrap;font-size:13.5px;font-weight:600;color:var(--blue);letter-spacing:.01em;
  opacity:0;transition:opacity .24s var(--ease),transform .24s var(--ease);
}
.partner-marquee .partner-item:hover img{opacity:0}
.partner-marquee .partner-item:hover .pi-name{opacity:1;transform:translate(-50%,-50%)}
/* 窄屏两侧渐隐收窄，否则 390 宽下左右各压掉 170px，整屏只剩两张卡 */
@media(max-width:767px){
  .partner-marquee::before,.partner-marquee::after{width:56px}
  .partner-marquee .partner-item{width:118px;height:38px}
  .partner-marquee .partner-item img{max-width:118px;max-height:38px}
}
@media(prefers-reduced-motion:reduce){.partner-track{animation:none}}

/* ==========================================================================
   CTA
   ========================================================================== */

/* ==========================================================================
   页脚
   ========================================================================== */
.footer{background:var(--ink);color:rgba(255,255,255,.55);padding:60px 0 0;font-size:13.5px}
/* 顶部：logo + 右侧描边按钮（参考 amaxchina） */
.ft-head{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.12)}
.ft-logo{display:inline-block;line-height:0}
.ft-logo img{height:42px;width:auto;filter:brightness(0) invert(1) opacity(.96)}
.ft-acts{display:flex;gap:12px;flex-wrap:wrap}
.ft-btn{
  display:inline-flex;align-items:center;gap:9px;height:42px;padding:0 20px;cursor:pointer;
  border:1px solid rgba(255,255,255,.26);color:rgba(255,255,255,.85);font-size:13px;letter-spacing:.04em;
  transition:border-color .3s var(--ease),color .3s var(--ease),background .3s var(--ease);
}
.ft-btn:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.06)}
.ft-btn svg{width:12px;height:12px;opacity:.65;transition:transform .3s var(--ease),opacity .3s}
.ft-select{position:relative}
.ft-select ul{
  position:absolute;bottom:calc(100% + 10px);right:0;min-width:172px;background:#fff;padding:8px 0;
  box-shadow:0 18px 44px rgba(0,0,0,.3);opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;z-index:30;
}
.ft-select:hover ul,.ft-select:focus-within ul{opacity:1;visibility:visible;transform:translateY(0)}
.ft-select:hover svg{transform:rotate(180deg);opacity:1}
.ft-select ul a{display:block;padding:9px 18px;font-size:13px;color:#33415A;white-space:nowrap}
.ft-select ul a:hover{background:var(--blue-50);color:var(--blue)}
/* 主区：4 栏链接 + 右侧联系方式 */
.ft-main{display:grid;grid-template-columns:repeat(4,minmax(0,1fr)) 2.7fr;gap:36px;padding:44px 0 42px}
.footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;letter-spacing:.5px}
.footer li{margin-bottom:10px}
.footer a:hover{color:#fff}
.ft-col a{font-size:13px;color:rgba(255,255,255,.55);transition:color .25s}
.ft-contact{padding-left:38px;border-left:1px solid rgba(255,255,255,.1)}
.ft-contact p{display:flex;align-items:baseline;justify-content:flex-end;gap:10px;margin-bottom:11px;font-size:13px;color:rgba(255,255,255,.5)}
.ft-contact p b{font-family:var(--num);font-size:19px;font-weight:600;letter-spacing:.02em;color:#fff}
.ft-addr{margin-top:16px;text-align:right;font-size:12.5px;line-height:1.95;color:rgba(255,255,255,.45)}
/* 页脚二维码：白底方块包住码图，标签放到白块外面（深底白字）
   三个并排，单块 114px（原占位 78px 的 1.5 倍）；窄屏逐级缩小避免挤爆 */
.ft-qr{display:flex;gap:10px;justify-content:flex-end;margin-top:26px}
.ft-qr .qr{display:flex;flex-direction:column;align-items:center;gap:10px}
.ft-qr .qr img{width:114px;height:114px;padding:8px;background:#fff;object-fit:contain;box-sizing:border-box}
.ft-qr .qr small{display:block;color:rgba(255,255,255,.8);font-size:12.5px;line-height:1.4;letter-spacing:.02em;white-space:nowrap}
@media(max-width:767px){
  .ft-qr{gap:8px}
  .ft-qr .qr img{width:100px;height:100px;padding:7px}
  .ft-qr .qr small{font-size:12px}
}
@media(max-width:359px){.ft-qr .qr img{width:86px;height:86px;padding:6px}}

/* 底部单行版权 */
.ft-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.1);padding:18px 0 22px;font-size:12.5px;color:rgba(255,255,255,.34);
}
.ft-bottom a{color:rgba(255,255,255,.42);margin-left:20px;transition:color .25s}
.ft-bottom a:first-child{margin-left:0}

/* ==========================================================================
   内页通用
   ========================================================================== */
.page-hero{position:relative;height:340px;display:flex;align-items:center;background:var(--ink);overflow:hidden}
.page-hero .bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.5}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,14,26,.9),rgba(7,14,26,.45))}
.page-hero .container{position:relative;z-index:2;color:#fff}
.page-hero .en{font-size:12px;letter-spacing:.24em;color:var(--accent)}
.page-hero h1{font-size:40px;font-weight:600;margin-top:12px;letter-spacing:1px}
.page-hero p{margin-top:12px;color:rgba(255,255,255,.6);font-size:14.5px;max-width:640px}

.crumb{background:var(--bg-soft);border-bottom:1px solid var(--line-2);font-size:13px;color:var(--text-3)}
.crumb .container{display:flex;align-items:center;gap:10px;height:52px;flex-wrap:wrap}
.crumb a:hover{color:var(--blue)}
.crumb span.sep{color:#C7CDD6}

.page-body{padding:60px 0 100px}

/* 列表页筛选 */
.filter-layout{display:grid;grid-template-columns:262px 1fr;gap:48px;align-items:start}
.side-box{border:1px solid var(--line);margin-bottom:20px}
.side-box h3{
  font-size:15px;font-weight:600;color:var(--ink);padding:16px 20px;border-bottom:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;background:var(--bg-soft);
}
.side-box h3 small{font-family:var(--num);font-size:10.5px;color:var(--text-3);letter-spacing:.14em}
.side-list{padding:8px 0}
.side-list a{display:flex;justify-content:space-between;align-items:center;padding:10px 20px;font-size:14px;color:var(--text-2);border-left:2px solid transparent}
.side-list a span{font-family:var(--num);font-size:12px;color:var(--text-3)}
.side-list a:hover{color:var(--blue);background:var(--blue-50)}
.side-list a.on{color:var(--blue);font-weight:600;border-left-color:var(--blue);background:var(--blue-50)}
.side-brands{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line-2)}
.side-brands a{background:#fff;height:52px;display:grid;place-items:center;font-family:var(--num);font-size:11.5px;letter-spacing:.08em;color:#7C8798;font-weight:600}
.side-brands a:hover,.side-brands a.on{background:var(--ink);color:#fff}
.side-cta{background:var(--ink);color:#fff;padding:26px 22px}
.side-cta small{font-family:var(--num);font-size:11px;letter-spacing:.18em;color:var(--accent)}
.side-cta b{display:block;font-family:var(--num);font-size:24px;margin:10px 0 4px;letter-spacing:.04em}
.side-cta p{font-size:12.5px;color:rgba(255,255,255,.55);margin-bottom:16px}

.list-toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px;flex-wrap:wrap}
.list-toolbar .res{font-size:13.5px;color:var(--text-3)}
.list-toolbar .res b{color:var(--blue);font-family:var(--num);font-size:16px}
.sort-links{display:flex;gap:18px;font-size:13.5px;color:var(--text-2)}
.sort-links a.on{color:var(--blue);font-weight:600}

.page-title-block{margin-bottom:32px}
.page-title-block .en{font-family:var(--num);font-size:11.5px;letter-spacing:.22em;color:var(--blue)}
.page-title-block h2{font-size:28px;font-weight:600;margin-top:8px;color:var(--ink)}
.page-title-block p{margin-top:10px;color:var(--text-2);font-size:14px}

/* 分页 */
.pager{display:flex;justify-content:center;gap:8px;margin-top:52px}
.pager a,.pager span{min-width:42px;height:42px;display:grid;place-items:center;border:1px solid var(--line);font-size:13.5px;font-family:var(--num);color:var(--text-2);padding:0 12px}
.pager a:hover{border-color:var(--blue);color:var(--blue)}
.pager .on{background:var(--blue);border-color:var(--blue);color:#fff}

/* 图文介绍块 */
.rich{font-size:15px;line-height:2;color:var(--text-2)}
.rich h2{font-size:26px;color:var(--ink);font-weight:600;margin:36px 0 16px;padding-left:16px;border-left:3px solid var(--blue)}
.rich h3{font-size:19px;color:var(--ink);font-weight:600;margin:28px 0 12px}
.rich p{margin-bottom:16px}
.rich ul{margin:0 0 20px;padding-left:0}
.rich ul li{position:relative;padding-left:18px;margin-bottom:10px}
.rich ul li::before{content:"";position:absolute;left:0;top:13px;width:6px;height:6px;background:var(--accent);border-radius:50%}
.rich img{margin:24px 0}
.rich blockquote{margin:24px 0;padding:20px 24px;background:var(--bg-soft);border-left:3px solid var(--blue);color:var(--text-2);font-size:14.5px}

/* 表单 */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;color:var(--text-2)}
.field label i{color:#D14343;font-style:normal;margin-left:2px}
.field input,.field textarea,.field select{
  height:46px;border:1px solid var(--line);padding:0 14px;background:#fff;transition:border-color .3s;border-radius:0;
}
.field textarea{height:110px;padding:12px 14px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--blue)}
.form-note{font-size:12px;color:var(--text-3);margin-top:14px}

/* FAQ 手风琴 */
.acc{border-top:1px solid var(--line)}
.acc-item{border-bottom:1px solid var(--line)}
.acc-q{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:24px 4px;
  font-size:16px;color:var(--ink);text-align:left;transition:color .3s;
}
.acc-q:hover{color:var(--blue)}
.acc-q .sign{position:relative;width:18px;height:18px;flex:0 0 auto}
.acc-q .sign::before,.acc-q .sign::after{content:"";position:absolute;background:currentColor;transition:.35s var(--ease)}
.acc-q .sign::before{left:0;right:0;top:8px;height:1.5px}
.acc-q .sign::after{top:0;bottom:0;left:8px;width:1.5px}
.acc-item.open .acc-q{color:var(--blue)}
.acc-item.open .sign::after{transform:rotate(90deg);opacity:0}
.acc-a{max-height:0;overflow:hidden;transition:max-height .45s var(--ease)}
.acc-a .in{padding:0 4px 26px;color:var(--text-2);font-size:14.5px;line-height:1.9;max-width:900px}

/* ==========================================================================
   动效：滚动淡入
   ========================================================================== */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}
.reveal.d4{transition-delay:.32s}.reveal.d5{transition-delay:.4s}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1!important;transform:none!important}
}

/* ==========================================================================
   响应式
   ========================================================================== */
/* 超宽屏（≥2200）再放大一档，避免左右留白过多 */
@media(min-width:2200px){
  :root{--container:1600px}
}
/* 菜单放大后中等屏会挤到 logo，按视口分档回落间距（1200–1279 最紧，因电话仍在） */
/* 维修资讯迁到右栏后右侧更宽：中档先收装饰小字与间距，再隐电话，logo 保持居中不被压 */
@media(max-width:1599px){
  .btn-quote i{display:none}
  .nav>li>a{padding:0 10px}
}
@media(max-width:1439px){
  .nav>li>a{padding:0 8px}
}
@media(max-width:1365px){
  .hd-tel{display:none}
}
@media(max-width:1279px){
  .nav>li>a{padding:0 6px}
}
/* 中等屏（1200–1499）回落 1240，避免内容贴边 */
@media(max-width:1499px){
  :root{--container:1240px}
}
@media(max-width:1199px){
  :root{--container:1080px}
  .nav>li>a{padding:0 6px;font-size:14.5px;letter-spacing:0;gap:4px}
  .btn-quote{padding:0 12px}
  .btn-quote i{display:none}
  .hd-tel{display:none}
  .prod-grid{grid-template-columns:repeat(4,1fr)}
  .brand-wall{grid-template-columns:repeat(4,1fr)}
  .ft-main{grid-template-columns:repeat(3,minmax(0,1fr));gap:34px}
  .ft-contact{grid-column:1/-1;padding-left:0;border-left:0;border-top:1px solid rgba(255,255,255,.1);padding-top:26px;display:flex;flex-wrap:wrap;align-items:flex-start;gap:0 44px}
  .ft-contact p{justify-content:flex-start;margin-bottom:10px}
  .ft-addr{margin-top:2px;text-align:left;flex:1 1 240px}
  .ft-qr{margin-top:16px;flex:0 0 auto}
  .sec{padding:84px 0}
}
@media(max-width:1023px){
  .hd-left .nav,.hd-right .nav,.btn-quote,.hd-tel{display:none}
  .hd-actions{display:flex;margin-left:auto;padding-left:0;gap:0}
  .burger{display:flex;margin-left:4px}
  /* 移动端无悬浮菜单，遮罩不参与 */
  .nav-overlay{display:none}
  .header-inner{height:64px}
  .header-inner .logo{order:-1;margin-right:auto;margin-left:0}
  .hd-left{flex:0 0 auto;gap:2px}
  .hd-right{flex:0 0 auto}
  .search-panel{position:fixed;left:16px;right:16px;top:74px;width:auto}
  .logo img{height:32px}
  .hero{height:auto;min-height:calc(100vh - 65px);min-height:calc(100svh - 65px);padding:0;display:flex;flex-direction:column}
  .hero-slide{position:relative;opacity:1;flex:1;display:flex;flex-direction:column}
  .hero-slide:not(.on){display:none}
  .hero-inner{flex:1;padding:110px 0 120px}
  .hero-idx,.scroll-hint{display:none}
  .hero-ctrl{bottom:30px;right:24px;left:24px;justify-content:space-between}
  .hero-meta b{font-size:26px}
  .adv-layout,.about-layout,.news-layout,.filter-layout{grid-template-columns:1fr;gap:40px}
  .prod-grid{grid-template-columns:repeat(3,1fr)}
  .brand-wall{grid-template-columns:repeat(3,1fr)}
  .sec-head h2{font-size:30px}
  .about-imgs{grid-template-rows:160px 160px}
  .ft-main{grid-template-columns:1fr 1fr;gap:30px}
  .ft-head{flex-direction:column;align-items:flex-start;gap:18px}
  .ft-acts{width:100%}
  .ft-btn{flex:1;justify-content:center}
  .ft-select ul{left:0;right:auto}
  .side-box{display:none}
  .page-hero{height:260px}
  .page-hero h1{font-size:30px}
}
@media(max-width:767px){
  body{font-size:14.5px}
  .container{padding:0 16px}
  .sec{padding:60px 0}
  .sec-head{margin-bottom:34px}
  .sec-head h2{font-size:25px}
  .sec-head p{font-size:14px}
  .sec-head-row{flex-direction:column;align-items:flex-start;gap:16px}
  .hero{min-height:calc(100vh - 65px);min-height:calc(100svh - 65px)}
  .hero-inner{padding:84px 0 104px}
  .hero-ctrl{bottom:calc(52px + env(safe-area-inset-bottom) + 16px)}
  .hero-txt h1{font-size:31px;letter-spacing:0}
  .hero-txt p{font-size:14px;letter-spacing:1px;margin-top:16px}
  .hero-meta{margin-top:26px;padding-top:20px;flex-wrap:wrap;gap:14px}
  .hero-meta div{flex:0 0 45%}
  .hero-meta b{font-size:24px}
  .hero-actions{margin-top:26px;gap:12px}
  .btn{height:46px;padding:0 22px;font-size:14px}
  .hero-arrows button{width:44px;height:44px}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .prod-card{padding:20px 16px 22px}
  .prod-img{height:96px;margin-bottom:14px}
  .prod-name{font-size:14px;height:auto;min-height:42px}
  .prod-tags{display:none}
  .brand-wall{grid-template-columns:repeat(2,1fr)}
  .brand-item{height:84px}
  .adv-item .ico{display:none}
  .news-tabs{gap:22px;overflow-x:auto}
  .news-tab{white-space:nowrap}
  .news-feature .txt{padding:22px}
  .news-list .m em{display:none}
  .about-copy h2{font-size:25px}
  .about-imgs{grid-template-columns:1fr;grid-template-rows:200px 140px 140px}
  .about-imgs div:first-child{grid-row:auto}
  .footer{padding-top:50px}
  .ft-main{gap:26px;padding:32px 0 30px}
  .ft-contact{flex-direction:column;align-items:flex-start;gap:0}
  .ft-addr{flex:0 0 auto;margin-top:6px}
  .ft-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .ft-bottom a{margin-left:0;margin-right:16px}
  .form-grid{grid-template-columns:1fr}
  .page-hero{height:auto;padding:52px 0}
  .page-hero h1{font-size:26px}
  .page-body{padding:36px 0 64px}
  .pager a,.pager span{min-width:38px;height:38px}
  .mega{display:none}
}

/* ==========================================================================
   产品详情 PDP
   ========================================================================== */
.pdp{padding:52px 0 64px;border-bottom:1px solid var(--line-2);background:#fff}
.pdp-layout{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:start}
.pdp-gallery{background:var(--bg-soft);padding:20px}
.pdp-main{height:400px;display:flex;align-items:center;justify-content:center}
.pdp-main img{max-height:100%;width:auto;object-fit:contain}
.pdp-thumbs{display:flex;gap:10px;margin-top:16px}
.pdp-thumbs button{width:78px;height:64px;background:#fff;border:1px solid var(--line);display:grid;place-items:center;padding:6px;transition:.3s}
.pdp-thumbs button.on,.pdp-thumbs button:hover{border-color:var(--blue)}
.pdp-thumbs img{max-height:100%;width:auto;object-fit:contain}
.pdp-brand{font-family:var(--num);font-size:12px;letter-spacing:.18em;color:var(--blue);font-weight:600}
.pdp-info h1{font-size:32px;line-height:1.35;font-weight:600;color:var(--ink);margin:14px 0 18px}
.pdp-desc{color:var(--text-2);font-size:14.5px;line-height:1.9}
.pdp-specs{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-2);border:1px solid var(--line-2);margin:28px 0 22px}
.pdp-specs div{background:#fff;padding:16px 14px;text-align:center}
.pdp-specs small{display:block;font-size:12px;color:var(--text-3);margin-bottom:6px}
.pdp-specs b{font-family:var(--num);font-size:19px;color:var(--ink);font-weight:600}
.pdp-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.pdp-badges span{font-size:12.5px;color:var(--blue);background:var(--blue-50);padding:5px 12px}
.pdp-actions{display:flex;gap:14px;flex-wrap:wrap}
.pdp-note{margin-top:18px;font-size:12.5px;color:var(--text-3);background:var(--bg-soft);padding:12px 16px;border-left:2px solid var(--accent)}

.detail-layout{display:grid;grid-template-columns:1fr 300px;gap:60px;padding-top:64px;align-items:start}
.detail-tabs{display:flex;gap:36px;border-bottom:1px solid var(--line);margin-bottom:34px}
.detail-tabs button{font-size:16px;color:var(--text-2);padding-bottom:14px;position:relative}
.detail-tabs button.on{color:var(--ink);font-weight:600}
.detail-tabs button.on::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--blue)}
.detail-panel{padding-bottom:20px}
.flow-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-2);border:1px solid var(--line-2)}
.flow-step{background:#fff;padding:26px 22px}
.flow-step .n{font-family:var(--num);font-size:13px;color:var(--blue);letter-spacing:.1em}
.flow-step h3{font-size:16.5px;margin:10px 0 8px;color:var(--ink)}
.flow-step p{font-size:13.5px;color:var(--text-2);line-height:1.8}
/* 详情页「相关案例」：独立类名 dcase-*。
   原来复用 .case-item，被首页轮播那套（flex 列 + height:404 + flex-basis 1/5）覆盖，
   导致卡片被撑到 404 高、图片宽窄不一、文字沉在大片空白里。 */
.dcase-list{display:grid;gap:16px}
.dcase-item{
  display:grid;grid-template-columns:200px 1fr;gap:24px;align-items:center;
  padding:16px;background:#fff;border:1px solid var(--line);
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.dcase-item:hover{border-color:var(--blue);box-shadow:var(--shadow-sm)}
.dcase-img{height:124px;overflow:hidden;background:var(--ink)}
.dcase-img img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.dcase-item:hover .dcase-img img{transform:scale(1.04)}
.dcase-body{min-width:0}
.dcase-body h3{font-size:16px;line-height:1.5;color:var(--ink);margin:0 0 8px}
.dcase-body p{font-size:13.5px;line-height:1.8;color:var(--text-2)}
.dcase-body small{display:inline-block;margin-top:12px;font-family:var(--num);font-size:12px;color:var(--text-3);letter-spacing:.05em}
.detail-aside .side-box:first-child{margin-top:0}

@media(max-width:1023px){
  .pdp-layout,.detail-layout{grid-template-columns:1fr;gap:34px}
  .pdp-main{height:280px}
  .detail-tabs{gap:20px;overflow-x:auto}
  .detail-tabs button{white-space:nowrap;font-size:15px}
  .flow-steps{grid-template-columns:1fr 1fr}
  .detail-aside{display:none}
}
@media(max-width:767px){
  .pdp{padding:26px 0 40px}
  .pdp-info h1{font-size:22px}
  .pdp-specs{grid-template-columns:1fr 1fr}
  .flow-steps{grid-template-columns:1fr}
  .dcase-item{grid-template-columns:1fr;gap:14px;align-items:start}
  .dcase-img{height:170px}
}

/* ==========================================================================
   品牌专题页
   ========================================================================== */
.brand-hero{position:relative;background:var(--ink);color:#fff;padding:56px 0 0;overflow:hidden}
.brand-hero .bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.35}
.brand-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,14,26,.95),rgba(7,14,26,.4))}
.brand-hero .container{position:relative;z-index:2}
.brand-top{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;padding-bottom:44px;flex-wrap:wrap}
.brand-name h1{font-family:var(--num);font-size:52px;font-weight:700;letter-spacing:.06em;line-height:1.1}
.brand-name h1 small{display:block;font-family:var(--font);font-size:18px;font-weight:400;letter-spacing:4px;color:rgba(255,255,255,.6);margin-top:12px}
.brand-name .sub{margin-top:18px;color:rgba(255,255,255,.58);font-size:14.5px;max-width:620px;line-height:1.9}
.brand-stats{display:flex;gap:44px}
.brand-stats div small{display:block;font-size:12px;color:rgba(255,255,255,.5);margin-top:6px;letter-spacing:1px}
.brand-stats b{font-family:var(--num);font-size:34px;font-weight:600}
/* 品牌锚点导航：移出 hero 成独立吸顶条（滚动跟随，滚动高亮由 brand.js scrollspy 驱动） */
.brand-nav{position:sticky;top:0;z-index:50;background:var(--ink);display:block;overflow-x:auto;scrollbar-width:none}
.brand-nav::-webkit-scrollbar{display:none}
.brand-nav .container{display:flex;gap:0}
.brand-nav a{
  padding:17px 26px;font-size:14.5px;color:rgba(255,255,255,.62);position:relative;white-space:nowrap;transition:.3s;
}
.brand-nav a.on,.brand-nav a:hover{color:#fff;background:rgba(255,255,255,.06)}
.brand-nav a.on::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--accent)}
/* 吸顶导航遮挡补偿：锚点跳转时预留导航条高度（导航已贴顶 top:0） */
.brand-sec{scroll-margin-top:64px}

.brand-sec{padding:76px 0;border-bottom:1px solid var(--line-2)}
.brand-sec:last-child{border-bottom:0}
.brand-sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:38px;flex-wrap:wrap}
.brand-sec-head h2{font-size:28px;font-weight:600;color:var(--ink)}
.brand-sec-head h2 small{display:block;font-family:var(--num);font-size:11.5px;letter-spacing:.2em;color:var(--blue);margin-bottom:8px;font-weight:500}
.brand-cats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-2);border:1px solid var(--line-2)}
.brand-cat{background:#fff;padding:26px 22px;display:flex;align-items:center;gap:16px;transition:.35s var(--ease)}
.brand-cat:hover{background:var(--ink);color:#fff}
.brand-cat .ci{width:44px;height:44px;display:grid;place-items:center;background:var(--blue-50);color:var(--blue);flex:0 0 auto;transition:.35s}
.brand-cat:hover .ci{background:rgba(255,255,255,.1);color:var(--accent)}
.brand-cat b{display:block;font-size:15px;font-weight:600}
.brand-cat small{font-size:12px;color:var(--text-3);font-family:var(--num);letter-spacing:.08em}
.brand-cat:hover small{color:rgba(255,255,255,.5)}
.brand-about{display:grid;grid-template-columns:1.1fr 1fr;gap:64px;align-items:center}
.brand-about .rich h2{margin-top:0}
.service-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-2);border:1px solid var(--line-2)}
.service-card{background:#fff;padding:32px 26px;transition:.35s}
.service-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
.service-card .no{font-family:var(--num);font-size:13px;color:var(--text-3);letter-spacing:.12em}
.service-card h3{font-size:18px;margin:12px 0 10px;color:var(--ink)}
.service-card p{font-size:13.5px;color:var(--text-2);line-height:1.9}
.hotline-band{background:var(--blue-700);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:30px;padding:38px 44px;flex-wrap:wrap}
.hotline-band h3{font-size:24px;font-weight:600}
.hotline-band p{color:rgba(255,255,255,.65);font-size:13.5px;margin-top:6px}
.hotline-band b{font-family:var(--num);font-size:38px;letter-spacing:.04em}
.brand-list{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--line-2);border:1px solid var(--line-2)}
.brand-list a{background:#fff;padding:22px;text-align:center;font-family:var(--num);font-size:14px;font-weight:600;letter-spacing:.1em;color:#7C8798}
.brand-list a.on,.brand-list a:hover{background:var(--ink);color:#fff}
/* logo 图墙版（品牌切换 / 品牌总览）：图 + hover 渐变遮罩显示品牌名 */
.brand-list.is-logo{display:grid;grid-template-columns:repeat(5,1fr);gap:9px;background:none;border:0}
.brand-list.is-logo a{
  position:relative;display:block;height:74px;padding:0;background:#fff;border:1px solid #E5E8EC;overflow:hidden;
  font-family:var(--font);color:#fff;letter-spacing:normal;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease),transform .3s var(--ease);
}
.brand-list.is-logo img{width:100%;height:100%;object-fit:contain;padding:12px 16px;transition:transform .35s var(--ease)}
.brand-list.is-logo b{
  position:absolute;top:0;left:0;right:0;bottom:0;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(-90deg,#2E7CD6,var(--blue));color:#fff;font-family:var(--num);
  font-size:13px;font-weight:600;letter-spacing:.04em;opacity:0;transition:opacity .3s var(--ease);
}
.brand-list.is-logo a:hover,.brand-list.is-logo a.on{border-color:var(--blue);box-shadow:0 6px 18px rgba(0,76,151,.16);transform:translateY(-2px)}
.brand-list.is-logo a:hover img{transform:scale(1.06)}
.brand-list.is-logo a:hover b,.brand-list.is-logo a.on b{opacity:1}
/* 品牌总览页卡片：logo + 名称 + 覆盖品类（hover 上浮 + 蓝边 + 阴影） */
.brand-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.brand-card{
  display:flex;align-items:center;gap:16px;padding:18px 20px;background:#fff;border:1px solid var(--line);
  transition:transform .38s var(--ease),box-shadow .38s var(--ease),border-color .38s var(--ease);
}
.brand-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--blue)}
.bc-logo{flex:0 0 auto;width:128px;height:38px;display:grid;place-items:center;border:1px solid var(--line-2);background:#fff;overflow:hidden}
.bc-logo img{max-width:100%;max-height:100%;object-fit:contain;transition:transform .38s var(--ease)}
.brand-card:hover .bc-logo img{transform:scale(1.06)}
.bc-body{min-width:0}
.bc-body b{display:block;font-family:var(--num);font-size:15px;font-weight:700;letter-spacing:.05em;color:var(--ink)}
.bc-body b small{font-family:var(--font);font-size:12.5px;font-weight:400;color:var(--text-3);margin-left:6px;letter-spacing:0}
.bc-body span{display:block;font-size:13px;color:var(--text-2);line-height:1.6;margin-top:4px}
.bc-body i{
  display:inline-flex;align-items:center;gap:6px;margin-top:8px;font-style:normal;font-size:12.5px;
  color:var(--blue);opacity:0;transform:translateX(-6px);transition:opacity .35s var(--ease),transform .35s var(--ease);
}
.brand-card:hover .bc-body i{opacity:1;transform:translateX(0)}
@media(max-width:1023px){
  .brand-cards{grid-template-columns:1fr 1fr}
  .brand-list.is-logo{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:767px){
  .brand-cards{grid-template-columns:1fr}
  .brand-list.is-logo{grid-template-columns:1fr 1fr}
}

@media(max-width:1023px){
  .brand-name h1{font-size:38px}
  .brand-cats{grid-template-columns:1fr 1fr}
  .brand-about{grid-template-columns:1fr;gap:34px}
  .service-cards{grid-template-columns:1fr}
  .brand-list{grid-template-columns:repeat(3,1fr)}
  .brand-stats{gap:28px}
}
@media(max-width:767px){
  .brand-top{padding-bottom:28px}
  .brand-name h1{font-size:30px}
  .brand-stats b{font-size:26px}
  .brand-sec{padding:48px 0}
  .brand-sec-head h2{font-size:22px}
  .brand-cats{grid-template-columns:1fr}
  .hotline-band b{font-size:28px}
  .brand-list{grid-template-columns:1fr 1fr}
}

/* ==========================================================================
   资讯 / FAQ / 搜索
   ========================================================================== */
.news-page-layout{display:grid;grid-template-columns:1fr 300px;gap:56px;align-items:start}
.art-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.art-card{border:1px solid var(--line-2);transition:.4s var(--ease);background:#fff}
.art-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px);border-color:transparent}
.art-thumb{height:200px;overflow:hidden;background:var(--ink)}
.art-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.art-card:hover .art-thumb img{transform:scale(1.05)}
.art-body{padding:24px}
.art-body .meta{display:flex;gap:12px;font-size:12px;color:var(--text-3);font-family:var(--num);letter-spacing:.06em;margin-bottom:12px}
.art-body .meta span.tag{font-family:var(--font);color:var(--blue);background:var(--blue-50);padding:1px 8px;letter-spacing:0}
.art-body h3{font-size:17px;line-height:1.6;color:var(--ink);margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.art-body p{font-size:13.5px;color:var(--text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

.article{max-width:860px}
.article h1{font-size:32px;line-height:1.4;font-weight:600;color:var(--ink);margin-bottom:18px}
.article .meta{display:flex;gap:20px;font-size:13px;color:var(--text-3);padding-bottom:24px;border-bottom:1px solid var(--line-2);margin-bottom:30px;flex-wrap:wrap}
.recommend{margin-top:56px;border-top:1px solid var(--line-2);padding-top:34px}
.recommend h3{font-size:18px;color:var(--ink);margin-bottom:20px}
.recommend ul{display:grid;grid-template-columns:1fr 1fr;gap:0 40px}
.recommend li{border-bottom:1px dashed var(--line);padding:14px 0;display:flex;justify-content:space-between;gap:16px;font-size:14px}
.recommend li span{color:var(--text-3);font-family:var(--num);font-size:12px;white-space:nowrap}

.search-bar{display:flex;gap:12px;margin-bottom:34px;flex-wrap:wrap}
.search-bar .inp{flex:1;min-width:260px;height:52px;border:1px solid var(--line);display:flex;align-items:center;padding-left:18px;gap:10px}
.search-bar .inp input{flex:1;border:0;height:100%;font-size:15px;background:transparent}
.res-count{font-size:14px;color:var(--text-2);margin-bottom:20px}
.res-count b{color:var(--blue);font-family:var(--num);font-size:18px}
.res-list{display:grid;gap:1px;background:var(--line-2);border:1px solid var(--line-2)}
.res-item{background:#fff;padding:24px 26px;display:grid;grid-template-columns:110px 1fr auto;gap:24px;align-items:center}
.res-item:hover{background:var(--bg-soft)}
.res-item img{max-height:80px;width:auto;object-fit:contain;margin:0 auto}
.res-item h3{font-size:16px;color:var(--ink);margin-bottom:6px}
.res-item h3 em{font-style:normal;color:#D14343}
.res-item p{font-size:13.5px;color:var(--text-2)}
.res-item .go{font-size:12.5px;color:var(--blue);white-space:nowrap}

.faq-layout{display:grid;grid-template-columns:220px 1fr;gap:56px;align-items:start}
.faq-cats{position:sticky;top:30px}
.faq-cats a{display:block;padding:13px 16px;font-size:14.5px;color:var(--text-2);border-left:2px solid transparent}
.faq-cats a.on{color:var(--blue);border-color:var(--blue);background:var(--blue-50);font-weight:600}

.form-card{border:1px solid var(--line);padding:34px}
.form-card h3{font-size:20px;margin-bottom:8px;color:var(--ink)}
.form-card>p{font-size:13.5px;color:var(--text-2);margin-bottom:24px}

@media(max-width:1023px){
  .news-page-layout,.faq-layout{grid-template-columns:1fr;gap:34px}
  .faq-cats{position:static;display:flex;gap:8px;overflow-x:auto}
  .faq-cats a{border:1px solid var(--line);white-space:nowrap;padding:8px 14px}
  .faq-cats a.on{border-color:var(--blue)}
  .art-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:767px){
  .art-grid,.recommend ul{grid-template-columns:1fr}
  .art-thumb{height:170px}
  .article h1{font-size:22px}
  .res-item{grid-template-columns:1fr;gap:12px}
  .res-item img{margin:0;max-height:70px}
  .form-card{padding:22px}
}

/* 联系我们 */
.contact-layout{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:start}
.contact-list{border-top:1px solid var(--line)}
.contact-row{display:grid;grid-template-columns:110px 1fr;gap:16px;padding:18px 4px;border-bottom:1px solid var(--line-2);align-items:baseline}
.contact-row small{font-size:13px;color:var(--text-3)}
.contact-row b{font-size:15px;font-weight:500;color:var(--ink)}
.map-box{margin-top:48px;border:1px solid var(--line);height:340px;background:var(--bg-soft);display:grid;place-items:center}
.map-ph{color:var(--text-3);font-size:13px;letter-spacing:.1em}
@media(max-width:1023px){.contact-layout{grid-template-columns:1fr;gap:30px}}
@media(max-width:767px){.contact-row{grid-template-columns:84px 1fr}.map-box{height:220px}}

/* 404 */
.errpage{padding:110px 24px 130px;text-align:center;max-width:760px;margin:0 auto}
.err-code{font-family:var(--num);font-size:150px;line-height:1;font-weight:700;letter-spacing:.06em;
  background:linear-gradient(120deg,#0F151C 20%,var(--blue) 70%,var(--accent) 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.errpage h1{font-size:28px;margin:18px 0 12px;color:var(--ink)}
.errpage p{color:var(--text-2);font-size:14.5px}
.err-actions{display:flex;justify-content:center;gap:14px;margin:34px 0 28px;flex-wrap:wrap}
.err-links{font-size:13px;color:var(--text-3)}
.err-links a{margin-left:14px;color:var(--text-2)}
.err-links a:hover{color:var(--blue)}
@media(max-width:767px){.err-code{font-size:96px}.errpage{padding:60px 16px 80px}.errpage h1{font-size:22px}}

@media(max-width:767px){
  .hero .bg{background-size:cover;background-position:center 40%}
  .hero .bg[data-bg]::after{background:linear-gradient(180deg,rgba(7,14,26,.55),rgba(7,14,26,.5) 45%,rgba(7,14,26,.9))}
  .hero-txt h1{font-size:27px;line-height:1.42}
  .hero-txt .kicker{font-size:11px;letter-spacing:.14em;margin-bottom:18px}
  .hero-txt .kicker::before{width:24px}
  .hero-txt p{font-size:13px;letter-spacing:.5px}
  .hero-meta{border-top-color:rgba(255,255,255,.14)}
}

@media(max-width:767px){
  .hero-slide .bg{filter:brightness(.9)}
  .hero .bg[data-bg]::after{background:radial-gradient(120% 70% at 80% 30%,rgba(0,76,151,.45),transparent 60%),linear-gradient(180deg,rgba(6,16,31,.6),rgba(6,16,31,.72) 60%,rgba(6,16,31,.95))}
  .hero-txt h1{text-shadow:0 2px 18px rgba(0,0,0,.35)}
}

@media(max-width:767px){
  /* 移动端底部快捷操作条 */
  .mobile-bar{
    position:fixed;left:0;right:0;bottom:0;z-index:95;display:flex;background:#fff;
    box-shadow:0 -6px 20px rgba(15,21,28,.10);padding-bottom:env(safe-area-inset-bottom);
  }
  .mobile-bar a{flex:1;display:flex;align-items:center;justify-content:center;gap:7px;height:52px;font-size:14px;color:var(--text-2)}
  .mobile-bar a+a{border-left:1px solid var(--line-2)}
  .mobile-bar a.primary{background:var(--blue);color:#fff;flex:1.2;font-weight:500}
  .mobile-bar svg{width:16px;height:16px}
  .footer{padding-bottom:56px}
}
@media(min-width:768px){.mobile-bar{display:none}}

/* ===== 品牌首屏统计：玻璃卡，避免与 Banner 插图相互干扰 ===== */
.brand-stats .pane{
  position:relative;padding:18px 22px;min-width:120px;
  background:rgba(9,20,34,.62);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.1);
  border-radius:4px;
}
.brand-stats .pane::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:2px;
  background:linear-gradient(180deg,var(--accent),transparent);
}
@media(max-width:767px){
  .brand-stats .pane{min-width:0;padding:14px 16px}
}

/* ==========================================================================
   #14 品牌官网式页面（brand.html 升级）+ 品类维修页（repair.html）
   ========================================================================== */

/* ---------- 品牌页：hero 内品牌 Logo 卡 + 资质徽章（dfzk 式） ---------- */
.brand-logo-card{display:inline-grid;place-items:center;background:#fff;padding:12px 26px;margin-bottom:20px;box-shadow:0 6px 24px rgba(0,0,0,.22)}
.brand-logo-card img{height:54px;width:auto}
.brand-badges{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.brand-badges span{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;border:1px solid rgba(255,255,255,.28);color:rgba(255,255,255,.92);font-size:13px;background:rgba(255,255,255,.06)}
.brand-badges svg{color:var(--accent);flex:none}

/* ---------- 品牌页：品牌优势（实力证明） ---------- */
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-2);border:1px solid var(--line-2)}
.why-grid .card{background:#fff;padding:32px 26px;transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.why-grid .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);position:relative;z-index:1}
.why-grid .no{font-family:var(--num);font-size:12.5px;color:var(--blue);letter-spacing:.14em}
.why-grid h3{font-size:17.5px;font-weight:600;color:var(--ink);margin:14px 0 10px}
.why-grid p{font-size:13.5px;color:var(--text-2);line-height:1.8}
.why-grid b.big{display:block;font-family:var(--num);font-size:32px;font-weight:600;color:var(--ink);margin:14px 0 2px}
.why-grid b.big small{font-size:14px;color:var(--accent);font-weight:600;margin-left:2px}

/* ---------- 品牌页：按品类分组在修型号（agitek row-ret1 式） ---------- */
/* 按品类分组在修型号：图片卡片（agitek ul-ret1 式，品牌蓝化）
   4 列、3:2 白底产品照、hover 图片缩放 + 上浮 + 底部蓝边 */
.mgroups{display:flex;flex-direction:column;gap:52px}
.mgroup-hd{display:flex;justify-content:space-between;align-items:baseline;border-bottom:2px solid var(--ink);padding-bottom:12px;margin-bottom:22px;flex-wrap:wrap;gap:8px}
.mgroup-hd h3{font-size:19px;font-weight:600;color:var(--ink)}
.mgroup-hd h3 small{margin-left:10px;font-family:var(--num);font-size:11px;letter-spacing:.16em;color:var(--text-3);font-weight:500}
.mgroup-hd a{font-size:13px;color:var(--text-3);transition:color .3s}
.mgroup-hd a:hover{color:var(--blue)}
.model-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.model-cards a{
  display:block;background:#fff;border:1px solid var(--line-2);border-bottom:3px solid transparent;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.mc-pic{display:block;position:relative;padding-top:66%;overflow:hidden;background:#fff}
.mc-pic img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;padding:18px;transition:transform .45s var(--ease)}
.mc-txt{display:flex;align-items:baseline;justify-content:center;gap:9px;padding:15px 12px 18px}
.mc-txt b{font-size:14.5px;font-weight:600;color:var(--ink);transition:color .3s}
.mc-txt i{font-style:normal;font-size:11.5px;color:var(--text-3);letter-spacing:.04em}
.model-cards a:hover{border-color:var(--blue);box-shadow:var(--shadow-md);transform:translateY(-4px)}
.model-cards a:hover .mc-pic img{transform:scale(1.07)}
.model-cards a:hover .mc-txt b{color:var(--blue)}

/* 热门维修型号带（agitek row-ret6 式：6 列紧凑图卡 + hover 底部蓝边淡入） */
.hot-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.hot-grid a{display:block;background:#fff;border:1px solid var(--line-2);position:relative;overflow:hidden;transition:box-shadow .35s var(--ease)}
.hot-grid .hpic{display:block;position:relative;padding-top:72%;overflow:hidden;background:#fff}
.hot-grid .hpic img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;padding:12px;transition:transform .4s var(--ease)}
.hot-grid .htxt{display:block;padding:11px 10px 13px;text-align:center;font-size:12.5px;color:var(--text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:color .3s}
.hot-grid a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--blue);opacity:0;transition:opacity .3s}
.hot-grid a:hover{box-shadow:var(--shadow-md)}
.hot-grid a:hover::after{opacity:1}
.hot-grid a:hover .hpic img{transform:scale(1.08)}
.hot-grid a:hover .htxt{color:var(--blue)}

/* ---------- 品牌页：服务说明 8 项（agitek row-z02 式） ---------- */
.svc-notes{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.svc-notes .item{background:var(--bg-soft);border:1px solid var(--line-2);padding:24px 22px;transition:all .3s var(--ease)}
.svc-notes .item:hover{border-color:var(--blue);background:#fff;box-shadow:var(--shadow-sm)}
.svc-notes b{display:flex;align-items:center;gap:10px;font-size:15.5px;font-weight:600;color:var(--ink)}
.svc-notes b i{font-style:normal;font-family:var(--num);font-size:11.5px;color:var(--blue);letter-spacing:.1em}
.svc-notes p{margin-top:10px;font-size:13px;color:var(--text-2);line-height:1.8}

/* ---------- 品类维修页（repair.html） ---------- */
.hero-facts{display:flex;gap:36px;margin-top:26px;flex-wrap:wrap}
.hero-facts>span{display:flex;align-items:baseline;gap:9px;color:rgba(255,255,255,.62);font-size:13px}
.hero-facts b{font-family:var(--num);font-size:27px;font-weight:600;color:#fff;white-space:nowrap}
.hero-facts b em{font-style:normal;font-size:13px;color:var(--accent);margin-left:2px}

.rp-sec{margin-bottom:54px}
.rp-sec:last-child{margin-bottom:0}
.rp-hd{border-left:3px solid var(--blue);padding-left:14px;margin-bottom:22px}
.rp-hd h3{font-size:20px;font-weight:600;color:var(--ink)}
.rp-hd h3 small{display:block;font-family:var(--num);font-size:10.5px;letter-spacing:.2em;color:var(--blue);margin-top:4px;font-weight:500}

.fault-tags{display:flex;flex-wrap:wrap;gap:12px}
.fault-tags li{padding:10px 18px;background:var(--bg-soft);border:1px solid var(--line-2);font-size:13.5px;color:var(--text-2);transition:all .3s}
.fault-tags li:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-50)}

.repair-brands.mega-brands{grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:8px}
.repair-brands.mega-brands a{height:104px}
.side-contact{padding:22px 20px;background:var(--ink);color:#fff;border:1px solid var(--ink)}
/* 深色块里的标题要压掉 .side-box h3 的浅灰底（原来白字压在 #EFF2F5 上，等于看不见） */
.side-contact h3{
  padding:0 0 12px;margin-bottom:14px;
  background:none;border-bottom:1px solid rgba(255,255,255,.16);color:#fff;
}
.side-contact h3 small{color:rgba(255,255,255,.45)}
.side-contact p{font-size:12.5px;color:rgba(255,255,255,.55);margin:0 0 2px}
.side-contact .tel{display:block;font-family:var(--num);font-size:24px;font-weight:600;letter-spacing:.03em;margin-bottom:16px}
.side-contact .btn{width:100%;justify-content:center}

.step-flow{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.step-flow .st{position:relative;background:#fff;border:1px solid var(--line);padding:22px 18px;transition:all .3s var(--ease)}
.step-flow .st:hover{border-color:var(--blue);box-shadow:var(--shadow-sm)}
.step-flow .st i{font-style:normal;font-family:var(--num);font-size:24px;font-weight:600;color:var(--blue);opacity:.35}
.step-flow .st h4{font-size:15px;font-weight:600;color:var(--ink);margin:10px 0 6px}
.step-flow .st p{font-size:12.5px;color:var(--text-2);line-height:1.7}
.step-flow .st::after{content:"";position:absolute;right:-13px;top:50%;width:12px;height:12px;border-top:1px solid #C7CDD6;border-right:1px solid #C7CDD6;transform:translateY(-50%) rotate(45deg)}
.step-flow .st:last-child::after{display:none}

.repair-switch{display:flex;flex-wrap:wrap;gap:10px}
.repair-switch a{padding:9px 18px;border:1px solid var(--line);font-size:13.5px;color:var(--text-2);transition:all .3s}
.repair-switch a:hover,.repair-switch a.on{border-color:var(--blue);color:var(--blue);background:var(--blue-50)}

.side-list .side-sub{display:flex;flex-wrap:wrap;gap:6px;padding:6px 16px 14px 34px;background:var(--blue-50)}
.side-list .side-sub a{display:inline-flex;padding:5px 12px;background:#fff;border:1px solid var(--line);font-size:12.5px;color:var(--text-2);border-left:none}
.side-list .side-sub a:hover{color:var(--blue);border-color:var(--blue);background:#fff}

/* 列表页 banner：右侧仪器图 + 服务徽章行 */
.page-hero .hero-visual{position:absolute;right:6%;bottom:0;top:0;width:34%;z-index:1;display:flex;align-items:flex-end;justify-content:center;pointer-events:none}
.page-hero .hero-visual img{max-width:100%;max-height:88%;object-fit:contain;object-position:bottom;filter:drop-shadow(0 24px 48px rgba(0,0,0,.45))}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-badges span{font-size:12.5px;color:rgba(255,255,255,.82);border:1px solid rgba(255,255,255,.22);padding:5px 14px;background:rgba(255,255,255,.06)}

/* 维修产品图卡（产品图片/标题/维修品牌/维修型号/故障概述/维修详情） */
.rp-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.rp-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line-2);border-bottom:3px solid transparent;transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease)}
.rp-card.is-hidden{display:none}
.rp-cards.expanded .rp-card.is-hidden{display:flex}
.rpc-pic{display:block;position:relative;padding-top:70%;overflow:hidden;background:#fff}
.rpc-pic img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;padding:14px;transition:transform .45s var(--ease)}
.rpc-body{display:flex;flex-direction:column;gap:7px;padding:14px 14px 16px;flex:1}
.rpc-title{font-size:14px;font-weight:600;color:var(--ink);line-height:1.55;transition:color .3s;min-height:44px}
.rpc-row{font-size:12px;color:var(--text-2);line-height:1.6;display:flex;gap:8px}
.rpc-row i{font-style:normal;color:var(--text-3);flex:none}
.rpc-go{margin-top:auto;padding-top:12px;font-size:12.5px;color:var(--text-3);border-top:1px dashed var(--line-2);display:flex;align-items:center;justify-content:space-between;transition:color .3s}
.rpc-go em{font-style:normal;transition:transform .3s var(--ease)}
.rp-card:hover{border-color:var(--blue);box-shadow:var(--shadow-md);transform:translateY(-4px)}
.rp-card:hover .rpc-pic img{transform:scale(1.07)}
.rp-card:hover .rpc-title{color:var(--blue)}
.rp-card:hover .rpc-go{color:var(--blue)}
.rp-card:hover .rpc-go em{transform:translateX(4px)}
.rp-more-wrap{margin-top:26px;display:flex;justify-content:center}
.rp-more{display:inline-flex;align-items:center;gap:8px;padding:11px 34px;background:#fff;border:1px solid var(--line);font-size:13.5px;color:var(--text-2);cursor:pointer;transition:all .3s}
.rp-more i{width:8px;height:8px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .3s}
.rp-more:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-50)}
.rp-cards.expanded + .rp-more-wrap .rp-more i{transform:rotate(-135deg) translateY(-2px)}

/* 维修实力展示 */
.strength-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.strength-grid .stg{position:relative;background:#fff;border:1px solid var(--line);padding:26px 22px 22px;overflow:hidden;transition:all .35s var(--ease)}
.strength-grid .stg:hover{border-color:var(--blue);box-shadow:var(--shadow-md);transform:translateY(-4px)}
.stg-ic{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;background:var(--blue-50);color:var(--blue);border-radius:2px}
.strength-grid h4{font-size:15.5px;font-weight:600;color:var(--ink);margin:16px 0 8px}
.strength-grid p{font-size:12.5px;color:var(--text-2);line-height:1.8}
.strength-grid .big{position:absolute;right:14px;top:16px;font-family:var(--num);font-size:28px;font-weight:600;color:var(--blue);opacity:.16;font-style:normal}
.strength-grid .big em{font-style:normal;font-size:13px}
.strength-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;padding-top:20px;border-top:1px solid var(--line-2)}
.strength-tags li{font-size:12.5px;color:var(--blue);background:var(--blue-50);padding:6px 14px}
.strength-tags li::before{content:"✓";margin-right:6px;font-weight:700}

/* 产品详情：维修信息（维修品牌/维修型号/故障概述） */
.pdp-meta{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line-2);border:1px solid var(--line-2);margin:22px 0 0}
.pdp-meta div{background:#fff;padding:13px 16px;display:flex;align-items:baseline;gap:10px}
.pdp-meta div.full{grid-column:1/-1}
.pdp-meta small{flex:none;font-size:12px;color:var(--text-3)}
.pdp-meta b{font-size:13.5px;font-weight:600;color:var(--ink);line-height:1.6}

/* ---------- 响应式 ---------- */
@media(max-width:1439px){
  .step-flow{grid-template-columns:repeat(3,1fr)}
  .step-flow .st::after{display:none}
  .rp-cards{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:1199px){
  .why-grid{grid-template-columns:repeat(2,1fr)}
  .svc-notes{grid-template-columns:repeat(2,1fr)}
  .model-cards{grid-template-columns:repeat(3,1fr)}
  .hot-grid{grid-template-columns:repeat(4,1fr)}
  .strength-grid{grid-template-columns:repeat(2,1fr)}
  .pdp-meta{grid-template-columns:1fr}
}
@media(max-width:1023px){
  .page-hero .hero-visual{display:none}
}
@media(max-width:767px){
  .why-grid,.svc-notes{grid-template-columns:1fr}
  .step-flow{grid-template-columns:1fr}
  .brand-logo-card img{height:44px}
  .brand-badges span{height:36px;font-size:12px;padding:0 12px}
  .repair-brands.mega-brands{grid-template-columns:1fr 1fr}
  .repair-brands.mega-brands a{height:88px}
  .hero-facts{gap:20px}
  .hero-facts b{font-size:22px}
  .model-cards{grid-template-columns:1fr 1fr;gap:12px}
  .hot-grid{grid-template-columns:repeat(3,1fr);gap:10px}
  .brand-nav{top:0}
  .brand-nav a{padding:14px 18px;font-size:13.5px}
  .rp-cards{grid-template-columns:1fr 1fr;gap:12px}
  .rpc-title{font-size:13px;min-height:40px}
  .strength-grid{grid-template-columns:1fr}
  .hero-badges span{font-size:12px;padding:4px 10px}
}

/* ==========================================================================
   #16 品牌页高级感：hero 入场动画 / 概要画廊缩略图切换
   ========================================================================== */
@keyframes brandHeroUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:none}}
.brand-hero .brand-logo-card{animation:brandHeroUp .7s .05s var(--ease) both}
.brand-hero .brand-name .en{animation:brandHeroUp .7s .18s var(--ease) both}
.brand-hero .brand-name h1{animation:brandHeroUp .8s .3s var(--ease) both}
.brand-hero .brand-name .sub{animation:brandHeroUp .8s .42s var(--ease) both}
.brand-hero .brand-badges{animation:brandHeroUp .8s .52s var(--ease) both}
.brand-hero .brand-stats{animation:brandHeroUp .8s .62s var(--ease) both}

/* 概要画廊：缩略图点击切换主图（淡入） */
.pdp-thumbs .thumb{cursor:pointer;transition:border-color .3s,box-shadow .3s;border:2px solid transparent}
.pdp-thumbs .thumb:hover{border-color:rgba(0,76,151,.45)}
.pdp-thumbs .thumb.on{border-color:var(--blue);box-shadow:var(--shadow-sm)}
.pdp-main img{transition:opacity .25s ease,transform .4s var(--ease)}
.pdp-main img.sw{opacity:0;transform:scale(.985)}

/* ==========================================================================
   #23 思维导图缺失页：手册下载 / 服务网点 / 合作单位
   ========================================================================== */
.doc-toolbar{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;margin-bottom:22px}
.doc-chips{display:flex;gap:10px;flex-wrap:wrap}
.doc-chip{padding:8px 18px;border:1px solid var(--line);background:#fff;font-size:13.5px;color:var(--text-2);cursor:pointer;transition:all .25s}
.doc-chip:hover{border-color:var(--blue);color:var(--blue)}
.doc-chip.on{background:var(--blue);border-color:var(--blue);color:#fff}
.doc-search{display:flex;align-items:center;gap:10px;border:1px solid var(--line);padding:0 16px;height:42px;min-width:260px;color:var(--text-3)}
.doc-search input{border:0;outline:0;height:100%;flex:1;font-size:14px;background:transparent}
.doc-count{font-size:13px;color:var(--text-3);margin-bottom:8px}
.doc-list{border-top:1px solid var(--line-2)}
.doc-row{display:flex;align-items:center;gap:18px;padding:18px 8px;border-bottom:1px solid var(--line-2);transition:background .3s var(--ease)}
.doc-row:hover{background:var(--blue-50)}
.doc-ic{flex:none;width:44px;height:52px;display:grid;place-items:center;background:#FDECEC;color:#D64545;border-radius:4px;font-family:var(--num);font-size:11px;font-weight:700;letter-spacing:.06em}
.doc-info{flex:1;min-width:0}
.doc-info b{display:block;font-size:15px;font-weight:500;color:var(--ink);line-height:1.5;transition:color .3s}
.doc-row:hover .doc-info b{color:var(--blue)}
.doc-info span{display:block;font-size:12.5px;color:var(--text-3);margin-top:6px;font-family:var(--num);letter-spacing:.04em}
.doc-dl{flex:none;width:42px;height:42px;display:grid;place-items:center;border:1px solid var(--line);color:var(--text-2);transition:all .3s}
.doc-row:hover .doc-dl{border-color:var(--blue);background:var(--blue);color:#fff}
.doc-empty{text-align:center;color:var(--text-3);padding:60px 0;font-size:14px}

.net-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.net-card{border:1px solid var(--line);background:#fff;padding:30px 26px;transition:all .35s var(--ease)}
.net-card:hover{border-color:var(--blue);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.net-card .tag{font-family:var(--num);font-size:11px;letter-spacing:.16em;color:var(--blue)}
.net-card h3{font-size:18px;margin:12px 0;color:var(--ink)}
.net-card p{font-size:13.5px;color:var(--text-2);line-height:2}

@media(max-width:1199px){
  .net-grid{grid-template-columns:repeat(2,1fr)}
  .partner-grid{grid-template-columns:repeat(4,1fr)}
}
@media(max-width:767px){
  .doc-search{min-width:100%}
  .net-grid{grid-template-columns:1fr}
  .partner-grid{grid-template-columns:repeat(2,1fr)}
  .partner-item{padding:20px 12px;gap:11px}
  .partner-item img{max-width:112px;max-height:34px}
  .doc-info b{font-size:14px}
}

/* ==========================================================================
   首页下半段（#33：参考 amaxchina 重排）
   维修品牌（带背景 + 品牌 logo）→ 维修案例 → 为什么选择我们 → 新闻资讯 → 服务保障
   ========================================================================== */

/* ---------- 维修品牌：浅蓝渐变 + 点阵网格底 ----------
   只给首页用：index 的区块是 .sec.brand-sec；品牌专题页 brand.html 的每个模块
   也叫 .brand-sec，如果不加 .sec 限定，这套装饰会跟着每个模块各画一遍，
   页面就成了一条条接缝（#51）。 */
.sec.brand-sec{position:relative;overflow:hidden;background:#F2F5F8}
.sec.brand-sec::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 80% 8%,rgba(0,76,151,.12),transparent 56%),
             linear-gradient(180deg,#F7F9FB 0%,#EBEFF5 100%);
}
.sec.brand-sec::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(0,76,151,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(0,76,151,.05) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 88%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 88%);
}
.sec.brand-sec .container{position:relative;z-index:2}
.sec.brand-sec .brand-wall{background:rgba(0,76,151,.12);border-color:rgba(0,76,151,.12)}
.sec.brand-sec .brand-item{height:118px;gap:9px;background:#fff}
.sec.brand-sec .brand-item img{
  max-height:40px;max-width:76%;width:auto;object-fit:contain;
  transition:transform .4s var(--ease);
}
.sec.brand-sec .brand-item .cn{font-size:11.5px;color:var(--text-3);transition:color .35s}
.sec.brand-sec .brand-item:hover{background:#fff;box-shadow:0 14px 30px rgba(15,21,28,.10);z-index:2}
.sec.brand-sec .brand-item:hover img{transform:scale(1.06)}
.sec.brand-sec .brand-item:hover .cn{color:var(--text-2)}

/* ---------- 维修案例 ---------- */
.case-sec{background:#fff}
.case-sec .sec-head{margin-bottom:24px}
.case-tabs{display:flex;flex-wrap:wrap;align-items:center;border-bottom:1px solid var(--line);margin-bottom:34px}
.case-tabs a{
  padding:0 20px 15px;font-size:14.5px;color:var(--text-2);position:relative;white-space:nowrap;
  border-right:1px solid var(--line-2);transition:color .3s;
}
.case-tabs a:first-child{padding-left:0}
.case-tabs a:last-child{border-right:0}
.case-tabs a::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease)}
.case-tabs a.on{color:var(--ink);font-weight:600}
.case-tabs a.on::after{transform:scaleX(1)}
.case-tabs a:hover{color:var(--blue)}

.case-wrap{overflow:hidden}
.case-track{display:flex;gap:16px;align-items:stretch}
.case-item{
  position:relative;display:flex;flex-direction:column;flex:0 0 calc((100% - 64px)/5);height:404px;
  background:#fff;border:1px solid var(--line);overflow:hidden;
  transition:box-shadow .4s var(--ease),border-color .4s var(--ease);
}
.case-item.is-main{flex:0 0 calc((100% - 64px)/5*2 + 16px);border-color:transparent}
.case-body{order:1;padding:22px 20px 10px}
.case-cat{display:inline-block;font-size:11.5px;color:var(--blue);letter-spacing:.02em}
.case-body h3{
  margin:9px 0 0;font-size:15.5px;line-height:1.6;font-weight:600;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.case-body p{
  margin:8px 0 0;font-size:12.8px;line-height:1.85;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.case-go{
  position:absolute;left:18px;bottom:15px;z-index:3;display:inline-flex;align-items:center;gap:8px;
  font-size:12.8px;color:rgba(255,255,255,.9);transition:color .3s;
}
.case-go svg{width:14px;height:14px;transition:transform .35s var(--ease)}
.case-pic{position:relative;order:3;flex:1;width:100%;min-height:150px;overflow:hidden;background:var(--ink)}
.case-item:not(.is-main) .case-pic::after{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 48%,rgba(6,15,28,.80));
}
.case-pic img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.case-item:hover{box-shadow:0 18px 40px rgba(15,21,28,.10);border-color:var(--line)}
.case-item:hover .case-pic img{transform:scale(1.05)}
.case-item:hover .case-go{color:#fff}
.case-item:hover .case-go svg{transform:translateX(4px)}

/* 首张特写：深色插画满铺 + 白色文案 */
.case-item.is-main .case-pic{position:absolute;inset:0;order:0;z-index:1}
.case-item.is-main::after{
  content:"";position:absolute;inset:0;z-index:2;
  background:linear-gradient(180deg,rgba(6,15,28,.05) 26%,rgba(6,15,28,.62) 62%,rgba(6,15,28,.92) 100%);
}
.case-item.is-main .case-body{order:0;margin-top:auto;padding:26px 28px 0;position:relative;z-index:3}
.case-item.is-main .case-cat{color:#fff;background:rgba(255,255,255,.16);padding:3px 11px;backdrop-filter:blur(4px)}
.case-item.is-main .case-body h3{color:#fff;font-size:21px;line-height:1.5;margin-top:12px}
.case-item.is-main .case-body p{color:rgba(255,255,255,.66);font-size:13px}
.case-item.is-main .case-go{position:relative;left:auto;bottom:auto;z-index:3;color:rgba(255,255,255,.86);padding:14px 28px 26px;order:4}
.case-item.is-main:hover .case-go{color:#fff}
.case-item.is-main:hover{box-shadow:none;border-color:transparent}

/* 三张小卡的图必须等高：标题/摘要各锁两行高度（1 行的也占满 2 行），
   否则文案长短差一行，下面 flex:1 的图片区就跟着高一行，看着「有的高有的低」 */
.case-item:not(.is-main) .case-body h3{min-height:3.2em}
.case-item:not(.is-main) .case-body p{min-height:3.7em}

/* ---------- 为什么选择我们（点阵世界地图 + 压边数据条） ---------- */
.why-sec{position:relative;padding:100px 0 0;background:linear-gradient(180deg,#F5F7FA 0%,#EFF2F5 100%);overflow:visible}
.why-sec .why-bg{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.why-sec .why-bg::before{
  content:"";position:absolute;top:6%;right:-6%;width:min(1120px,84%);height:88%;
  background:url(../img/world-dots.png) right center/contain no-repeat;
  -webkit-mask-image:linear-gradient(90deg,transparent 6%,#000 46%);
  mask-image:linear-gradient(90deg,transparent 6%,#000 46%);
}
.why-sec .why-bg::after{
  content:"";position:absolute;right:8%;top:18%;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,76,151,.10),transparent 66%);
}
.why-inner{position:relative;z-index:2;min-height:420px}
.why-copy .eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--num);font-size:12px;letter-spacing:.22em;color:var(--blue);text-transform:uppercase;margin-bottom:16px}
.why-copy .eyebrow::before{content:"";width:22px;height:1px;background:var(--blue)}
.why-copy h2{font-size:38px;line-height:1.3;font-weight:600;color:var(--ink);letter-spacing:.5px}
.why-copy h2 em{font-style:normal;color:var(--blue)}
.why-copy>p{max-width:600px;margin-top:18px;font-size:15.5px;line-height:1.95;color:var(--text-2)}
.why-points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 34px;margin:30px 0 36px;max-width:620px}
.why-points li{position:relative;padding-left:15px}
.why-points li::before{content:"";position:absolute;left:0;top:7px;bottom:5px;width:2px;background:var(--blue)}
.why-points b{display:block;font-size:14.5px;color:var(--ink);font-weight:600}
.why-points span{display:block;margin-top:3px;font-size:12.6px;color:var(--text-2);line-height:1.7}
.why-stats{
  position:relative;z-index:3;display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:60px;margin-bottom:-58px;background:#fff;box-shadow:0 22px 54px rgba(15,21,28,.09);
}
.why-stat{padding:34px 26px;border-left:1px solid var(--line-2)}
.why-stat:first-child{border-left:0}
.why-stat b{font-family:var(--num);font-size:42px;font-weight:600;line-height:1;letter-spacing:.02em;color:var(--ink)}
.why-stat i{font-style:normal;font-size:16px;color:var(--blue);margin-left:3px}
.why-stat small{display:block;margin-top:10px;font-size:13px;color:var(--text-2)}

/* ---------- 新闻资讯（左：主图 + 三条横排；右：三条大日期） ----------
   参考站版式：主图定死 2:1，图片 cover 自适应；图下三条竖线分隔；
   右侧把日期拆成「大数字 + 年月」，与标题摘要并排，三条等分左栏高度。 */
.news-sec{background:#fff;padding-top:126px}
.news-sec .sec-head{margin-bottom:34px}
.news-x{display:grid;grid-template-columns:1.62fr 1fr;gap:56px;align-items:stretch}
.news-x-left{min-width:0}

/* 主图：长宽固定（2:1），img 铺满裁切，换任何比例的原图都不变形 */
.news-x-pic{position:relative;display:block;aspect-ratio:2/1;overflow:hidden;background:var(--bg-soft)}
.news-x-pic img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.news-x-pic:hover img{transform:scale(1.04)}

/* 图下三条：竖线分隔，标题锁 2 行、摘要锁 3 行，文案长短都拉不歪 */
.news-x-row{display:grid;grid-template-columns:repeat(3,1fr);margin-top:26px}
.news-x-row li{display:flex;padding:0 22px;border-left:1px solid var(--line);min-width:0}
.news-x-row a{display:flex;flex-direction:column;width:100%}
.news-x-row li:first-child{padding-left:0;border-left:0}
.news-x-row li:last-child{padding-right:0}
.news-x-row h4{
  font-size:15px;font-weight:600;line-height:1.5;color:var(--ink);transition:color .3s;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-x-row p{
  margin-top:9px;font-size:13px;line-height:1.8;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
/* 日期压到每条底部：三列摘要行数不同也保持同一基线 */
.news-x-row .nd{display:block;margin-top:auto;padding-top:12px;font-family:var(--num);font-size:12px;letter-spacing:.05em;color:var(--text-3)}
.news-x-row a:hover h4{color:var(--blue)}

/* 右侧三条：等分左栏高度，横线贯穿，日期用大数字 */
.news-x-side{display:flex;flex-direction:column;min-width:0}
.news-x-side li{flex:1 1 0;display:flex;align-items:center;min-height:0;border-top:1px solid var(--line)}
.news-x-side li:first-child{border-top:0}
.news-x-side a{display:grid;grid-template-columns:84px minmax(0,1fr);gap:18px;align-items:center;width:100%;padding:18px 0}
.news-x-side .nday b{display:block;font-family:var(--num);font-size:40px;font-weight:600;line-height:1;color:var(--ink);letter-spacing:.01em}
.news-x-side .nday i{display:block;margin-top:9px;font-style:normal;font-family:var(--num);font-size:12px;letter-spacing:.04em;color:var(--text-3)}
.news-x-side h4{
  font-size:15.5px;font-weight:600;line-height:1.55;color:var(--ink);transition:color .3s;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-x-side p{
  margin-top:8px;font-size:13px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-x-side a:hover h4{color:var(--blue)}

/* ---------- 服务保障四联（深蓝） ---------- */
.svc-strip{position:relative;background:#004C97;color:#fff;overflow:hidden}
.svc-strip::before{content:"";position:absolute;inset:0;background:url(../img/blue-mesh.svg) center/cover no-repeat;opacity:.10}
.svc-inner{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);padding-top:42px;padding-bottom:42px}
.svc-item{display:flex;flex-direction:column;align-items:center;text-align:center;padding:0 24px;border-left:1px solid rgba(255,255,255,.18);transition:transform .35s var(--ease)}
.svc-item:first-child{border-left:0}
.svc-ic{display:grid;place-items:center;margin-bottom:16px;color:#fff}
.svc-ic svg{width:38px;height:38px;stroke-width:1.15}
.svc-item b{font-size:16px;font-weight:500;letter-spacing:.12em}
.svc-item small{margin-top:8px;font-size:13px;color:rgba(255,255,255,.84);font-weight:600;letter-spacing:.02em}
.svc-item:hover{transform:translateY(-4px)}

@media(max-width:1279px){
  .case-item{flex:0 0 calc((100% - 48px)/4);height:380px}
  .case-item.is-main{flex:0 0 calc((100% - 48px)/4*2 + 16px)}
  .case-item.is-main .case-body h3{font-size:19px}
  .why-copy h2{font-size:33px}
  .news-x{gap:40px}
  .news-x-row li{padding:0 15px}
  .news-x-side a{grid-template-columns:72px minmax(0,1fr);gap:14px}
  .news-x-side .nday b{font-size:34px}
}
@media(max-width:1023px){
  .brand-sec .brand-item{height:104px}
  .brand-sec .brand-item img{max-height:32px}
  .case-item{flex:0 0 calc((100% - 48px)/4);height:360px}
  .case-item.is-main{flex:0 0 calc((100% - 48px)/4*2 + 16px)}
  .case-body p{display:none}
  .why-inner{min-height:0}
  .why-copy h2{font-size:30px}
  .why-sec .why-bg::before{right:-24%;width:120%;opacity:.75}
  .news-sec{padding-top:150px}
  .news-x{grid-template-columns:1fr;gap:34px}
  .news-x-row{margin-top:24px}
  .news-x-side li{flex:0 0 auto;padding:18px 0}
  .svc-inner{grid-template-columns:repeat(2,1fr);gap:32px 0;padding-top:36px;padding-bottom:36px}
  .svc-item:nth-child(odd){border-left:0}
  .svc-ic svg{width:32px;height:32px}
}
@media(max-width:767px){
  .case-tabs{overflow-x:auto;flex-wrap:nowrap;margin-bottom:26px}
  .case-tabs a{padding:0 14px 13px;font-size:13.5px}
  .case-item{flex:0 0 calc((100% - 32px)/3);height:330px}
  .case-item.is-main{flex:0 0 calc((100% - 32px)/3*2 + 16px)}
  .case-item.is-main .case-body h3{font-size:16px}
  .case-item.is-main .case-body p{display:none}
  .why-sec{padding-top:70px}
  .why-copy h2{font-size:25px}
  .why-copy>p{font-size:14px}
  .why-points{gap:14px 20px;margin:22px 0 28px}
  .why-stats{grid-template-columns:repeat(2,1fr);margin-top:44px;margin-bottom:-44px}
  .why-stat{padding:24px 18px}
  .why-stat:nth-child(3){border-left:0}
  .why-stat:nth-child(n+3){border-top:1px solid var(--line-2)}
  .why-stat b{font-size:32px}
  .news-sec{padding-top:130px}
  .news-x-row{grid-template-columns:1fr}
  .news-x-row li{padding:16px 0;border-left:0;border-top:1px solid var(--line)}
  .news-x-row li:first-child{padding-top:0;border-top:0}
  .news-x-row p{-webkit-line-clamp:2}
  .news-x-side a{grid-template-columns:62px minmax(0,1fr);gap:14px}
  .news-x-side .nday b{font-size:32px}
  .news-x-side p{-webkit-line-clamp:2}
  .svc-inner{grid-template-columns:repeat(2,1fr);gap:26px 0;padding-top:28px;padding-bottom:28px}
  .svc-item{padding:0 14px}
  .svc-item b{font-size:14.5px}
  .svc-item small{font-size:11.5px}
  .svc-ic{margin-bottom:10px}
  .svc-ic svg{width:28px;height:28px}
}
@media(max-width:600px){
  .case-item{display:none}
  .case-item.is-main{display:flex;flex:0 0 100%;height:340px}
}

/* 页脚：窄屏单列 */
@media(max-width:480px){
  .ft-main{grid-template-columns:1fr;gap:24px;padding:30px 0 26px}
  .footer{padding-top:44px}
}

/* ---------- 首屏浅色版（客户提供的芯片科技图）----------
   这张图整体很亮（左侧平均亮度 205），白字会飘，所以把这一屏的文字、控制条
   全部转深色，并在左侧压一层极淡白雾——只压住局部暗线条，不洗掉图的通透感。 */
.hero .hero-slide.hero-light .bg{background-position:62% center}
.hero .hero-slide.hero-light .bg::after{
  background:linear-gradient(90deg,rgba(255,255,255,.74) 0%,rgba(255,255,255,.44) 32%,rgba(255,255,255,.10) 60%,rgba(255,255,255,0) 80%);
}
.hero-slide.hero-light .hero-txt{color:var(--ink)}
.hero-slide.hero-light .kicker{color:var(--blue)}
.hero-slide.hero-light .kicker::before{background:var(--blue)}
.hero-slide.hero-light h1 em{color:var(--blue)}
.hero-slide.hero-light h1 em::after{background:rgba(0,76,151,.16)}
.hero-slide.hero-light .hero-txt p{color:var(--text-2)}
.hero-slide.hero-light .hero-meta{border-top-color:rgba(15,21,28,.14)}
.hero-slide.hero-light .hero-meta small{color:var(--text-3)}
.hero-slide.hero-light .btn-ghost{border-color:rgba(15,21,28,.30);color:var(--ink)}
.hero-slide.hero-light .btn-ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
/* 控制条在 slide 之外，用 :has() 跟随当前屏的明暗 */
.hero:has(.hero-slide.on.hero-light) .hero-dots button{background:rgba(15,21,28,.30)}
.hero:has(.hero-slide.on.hero-light) .hero-dots button span{background:var(--blue)}
.hero:has(.hero-slide.on.hero-light) .hero-arrows button{border-color:rgba(15,21,28,.30);color:var(--ink)}
.hero:has(.hero-slide.on.hero-light) .hero-arrows button:hover{background:var(--blue);border-color:var(--blue);color:#fff}
.hero:has(.hero-slide.on.hero-light) .hero-idx{color:rgba(15,21,28,.45)}
.hero:has(.hero-slide.on.hero-light) .hero-idx b{color:var(--ink)}
.hero:has(.hero-slide.on.hero-light) .scroll-hint{color:rgba(15,21,28,.52)}
.hero:has(.hero-slide.on.hero-light) .scroll-hint::after{background:linear-gradient(rgba(15,21,28,.42),transparent)}
.hero-slide:nth-child(2) .bg{background-position:56% center}
.hero-slide:nth-child(3) .bg{background-position:69% center}

/* 窄屏文字占整行，白雾要更厚、过渡点右移，否则灰字压在芯片纹理上看不清 */
@media(max-width:1023px){
  .hero .hero-slide.hero-light .bg::after{
    background:linear-gradient(90deg,rgba(255,255,255,.86) 0%,rgba(255,255,255,.76) 56%,rgba(255,255,255,.34) 80%,rgba(255,255,255,.06) 100%);
  }
}
@media(max-width:767px){
  .hero .hero-slide.hero-light .bg{background-position:58% 32%}
  .hero .hero-slide.hero-light .bg::after{
    background:linear-gradient(180deg,rgba(255,255,255,.88) 0%,rgba(255,255,255,.80) 42%,rgba(255,255,255,.62) 74%,rgba(255,255,255,.52) 100%);
  }
}

/* ==========================================================================
   品牌专题页：整页一层背景（#51）
   各模块不再自带浅底/渐变，统一透出这一层纯色；层级靠间距、细线与白色卡片，
   不再靠交替色块——原来每屏都重新起一遍渐变，页面上会出现一条条接缝。
   ========================================================================== */
body.brand-theme{background:#F2F5F8}
/* 装饰层撤掉后，模块不再是裁剪容器；这里用 clip 保住原来的裁切行为，
   避免任何一个越界子元素把整页撑出横向滚动条（桌面/移动都兜一次底） */
.brand-theme .brand-sec{background:transparent;overflow:clip}
/* 模块之间靠间距 + 一条极淡分隔线区分层级，不再用色块 */
.brand-theme .brand-sec{border-bottom-color:rgba(15,21,28,.06)}
.brand-theme .hotline-band{box-shadow:0 18px 40px rgba(0,76,151,.16)}

/* 型号卡的文字行是「中文型号 + 英文品类」同排，窄屏下这排的最小宽度约 204px，
   两列放不进 358px 的容器，右侧卡片会被裁掉半截（原来被模块的 overflow:hidden
   遮住，看着像被切）。≤767 改成上下两行，型号与品类都能完整显示。 */
@media(max-width:767px){
  .model-cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .mc-txt{flex-direction:column;align-items:flex-start;gap:2px;padding:12px 14px 14px}
  .mc-txt b{font-size:13.5px}
  .mc-txt i{font-size:10.5px;letter-spacing:.03em}
}