/*
Theme Name: IndLabel 工业标识
Theme URI: https://www.indlabel.com
Author: IndLabel
Description: 工业材料、工业印刷品与特种标识制造企业的官网主题。钢构灰基底配安全橙强调色，按行业（钢铁冶金 / 电力能源 / 户外广告）组织内容，包含产品与案例自定义内容类型，面向 B2B 询盘转化。
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: indlabel
Tags: business, industrial, custom-menu, featured-images, translation-ready
*/

/* ============================================================
   设计令牌
   ============================================================ */
:root{
  --ink:#14161a; --ink-2:#33383f; --ink-3:#6b727c;
  --steel-900:#0f1216; --steel-800:#191d23; --steel-700:#242a32;
  --steel-500:#5a6472; --steel-300:#b9c0ca; --steel-200:#d5dae1;
  --paper:#f4f5f7; --white:#ffffff;
  --orange:#d1460a; --orange-dark:#a83805; --ember:#ff6a1f;
  --line:#e1e5ea; --line-2:#eef0f3;
  --max:1280px; --nav-h:68px; --r:4px;
  --ease:cubic-bezier(.16,1,.3,1);
}

/* ============================================================
   WordPress 管理工具栏偏移
   已登录用户会看到顶部 32px 工具栏，固定导航必须下移，否则重叠
   工具栏高度：桌面 32px，≤782px 屏幕 46px
   ============================================================ */
body.admin-bar .nav{top:32px}
body.admin-bar{padding-top:calc(var(--nav-h) + 32px)}

@media screen and (max-width:782px){
  body.admin-bar .nav{top:46px}
  body.admin-bar{padding-top:calc(var(--nav-h) + 46px)}
}

/* ============================================================
   语言切换器
   ============================================================ */
.lang-sw{position:relative;margin-left:10px}
.lang-toggle{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 11px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.05);border-radius:4px;
  color:#e8e8e8;font-size:12.5px;font-weight:600;letter-spacing:.04em;
  cursor:pointer;transition:border-color .18s,background .18s,color .18s;
  font-family:inherit;
}
.lang-toggle:hover,.lang-toggle:focus-visible{border-color:var(--accent);color:#fff;background:rgba(209,70,10,.14);outline:none}
.lang-toggle[aria-expanded="true"]{border-color:var(--accent);color:#fff}
.lang-caret{transition:transform .18s}
.lang-toggle[aria-expanded="true"] .lang-caret{transform:rotate(180deg)}
.lang-globe{opacity:.75;flex:none}

.lang-list{
  position:absolute;top:calc(100% + 8px);right:0;z-index:80;
  min-width:172px;margin:0;padding:6px;list-style:none;
  background:var(--steel-800);border:1px solid rgba(255,255,255,.12);
  border-radius:5px;box-shadow:0 12px 32px rgba(0,0,0,.42);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s,transform .18s,visibility .18s;
}
.lang-sw.is-open .lang-list{opacity:1;visibility:visible;transform:translateY(0)}
.lang-item a{
  display:flex;align-items:center;gap:10px;
  padding:8px 10px;border-radius:3px;
  color:#d6d6d6;text-decoration:none;font-size:13px;
  transition:background .15s,color .15s;
}
.lang-item a:hover{background:rgba(255,255,255,.07);color:#fff}
.lang-item.is-current a{color:var(--accent);font-weight:700}
.lang-code{
  flex:none;min-width:26px;padding:1px 5px;text-align:center;
  font-size:10.5px;font-weight:700;letter-spacing:.06em;
  border:1px solid currentColor;border-radius:3px;opacity:.72;
}
.lang-item.is-current .lang-code{opacity:1}
.lang-name{flex:1;white-space:nowrap}
.lang-check{flex:none;font-size:12px;font-weight:700}
.lang-item.no-translation a{opacity:.6}

/* 内联形态（页脚等浅色区）*/
.lang-sw--footer{margin-left:0}
.lang-sw--footer .lang-toggle{border-color:rgba(255,255,255,.16)}

/* 内容未翻译提示（仅登录用户可见）*/
.i18n-notice{
  max-width:1180px;margin:0 auto 18px;padding:11px 16px;
  background:rgba(209,70,10,.1);border-left:3px solid var(--accent);
  color:#e8b8a0;font-size:13px;
}
.i18n-notice a{color:var(--accent);text-decoration:underline}

/* ============================================================
   基础
   ============================================================ */
*,*::before,*::after{box-sizing:border-box}
body{
  margin:0; padding-top:var(--nav-h);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",-apple-system,sans-serif;
  color:var(--ink); background:var(--white); line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-wrap:break-word;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.mono{font-family:ui-monospace,"Cascadia Mono",Consolas,"Courier New",monospace}
.screen-reader-text{
  position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
}
.skip-link:focus{
  position:fixed;top:8px;left:8px;z-index:100;
  background:var(--orange);color:#fff;padding:10px 18px;border-radius:var(--r);
  width:auto;height:auto;clip:auto;margin:0;overflow:visible;
}

/* WordPress 必需类 */
.alignleft{float:left;margin:0 24px 16px 0}
.alignright{float:right;margin:0 0 16px 24px}
.aligncenter{margin:0 auto 16px;display:block}
.wp-caption{max-width:100%}
.wp-caption-text{font-size:13px;color:var(--ink-3);margin-top:8px}
.sticky,.gallery-caption,.bypostauthor{position:relative}

/* ============================================================
   导航

   布局约束（重要）：
   - 品牌区 + 6 个菜单项 + 报价按钮 + 语言切换器必须单行排列
   - 菜单项已合并为 6 项（三个行业收进下拉）
   - 估算宽度（含品牌 150–240px + 按钮 110px + 切换器 90px + 内边距 48px）：
       中文全幅 ≈ 800px，英文 ≈ 900px，俄文 ≈ 950px
     因此 1100px 以下收进汉堡菜单，上不溢出。
   - 菜单项必须 nowrap，否则空间不足时中文被压成竖排
   - 报价按钮与切换器 flex:none，永不被挤出屏幕
   ============================================================ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;height:var(--nav-h);
  background:rgba(15,18,22,.97);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.09);
}
.nav-in{
  max-width:var(--max);margin:0 auto;padding:0 24px;height:100%;
  display:flex;align-items:center;gap:26px;
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{width:32px;height:32px;background:var(--orange);display:grid;place-items:center;border-radius:3px;flex-shrink:0}
.brand-mark svg{width:19px;height:19px}
.brand-txt{color:#fff;font-size:18px;font-weight:700;letter-spacing:.01em;line-height:1.05;white-space:nowrap}
.brand-sub{color:var(--steel-500);font-size:10.5px;letter-spacing:.15em;display:block;margin-top:2px;white-space:nowrap}

/* 链接区：从品牌后推至右侧 */
.nav-links{
  display:flex;align-items:center;gap:16px;
  margin-left:auto;min-width:0;flex-shrink:1;
}
.nav-links > ul{
  display:flex;align-items:center;gap:20px;
  min-width:0;flex-wrap:nowrap;
}
.nav-links li{white-space:nowrap;flex:none}

/* 菜单链接：WordPress 输出 li.menu-item > a，无自定义类名 */
.nav-links li > a{
  display:block;
  color:var(--steel-200);
  font-size:15px;
  font-weight:500;
  line-height:1.2;
  padding:8px 0;
  white-space:nowrap;
  transition:color .2s;
}
.nav-links li > a:hover,
.nav-links li.current-menu-item > a,
.nav-links li.current-menu-ancestor > a,
.nav-links li.current_page_item > a,
.nav-links li.current-menu-parent > a{
  color:#fff;
}
.nav-links li.current-menu-item > a{position:relative}
.nav-links li.current-menu-item > a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--orange);border-radius:1px;
}

/* 下拉菜单（行业方案）*/
.nav-links .menu-item-has-children{position:relative}
.nav-links .menu-item-has-children > a::after{
  content:"\25BE"; /* ▾ */
  display:inline-block;margin-left:5px;font-size:9px;
  opacity:.65;vertical-align:middle;
  transition:transform .18s;
}
.nav-links .menu-item-has-children:hover > a::after,
.nav-links .menu-item-has-children:focus-within > a::after{transform:rotate(180deg)}

.nav-links .sub-menu{
  position:absolute;top:calc(100% + 10px);left:-14px;min-width:186px;
  background:var(--steel-800);border:1px solid rgba(255,255,255,.12);
  border-radius:6px;padding:7px 0;
  display:none;flex-direction:column;gap:0;
  box-shadow:0 16px 36px -14px rgba(0,0,0,.75);
  z-index:60;
}
.nav-links .menu-item-has-children:hover .sub-menu,
.nav-links .menu-item-has-children:focus-within .sub-menu{display:flex}
.nav-links .sub-menu li{width:100%}
.nav-links .sub-menu li a{
  display:block;padding:9px 18px;font-size:14px;
  color:var(--steel-300);white-space:nowrap;
}
.nav-links .sub-menu li a:hover{background:rgba(255,255,255,.07);color:#fff}

/* 报价按钮：不可压缩，永不被挤出屏幕 */
.nav-cta{
  flex:none;flex-shrink:0;
  background:var(--orange);color:#fff;
  padding:9px 18px;border-radius:var(--r);
  font-size:14.5px;font-weight:600;white-space:nowrap;
  transition:background .2s;
}
.nav-cta:hover{background:var(--orange-dark)}
.nav-lang{color:var(--steel-500);font-size:13px;border-left:1px solid rgba(255,255,255,.16);padding-left:20px;transition:color .2s}
.nav-lang:hover{color:#fff}

/* 语言切换器：不可压缩 */
.lang-sw--nav{flex:none;flex-shrink:0;margin-left:0}
.lang-sw--nav .lang-toggle{padding:7px 10px;font-size:12px}

/* 汉堡按钮 */
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px;margin-left:auto;flex:none;flex-shrink:0}
.burger span{display:block;width:22px;height:2px;background:#fff;margin:5px 0;transition:.25s}

/* ============================================================
   按钮
   ============================================================ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 30px;border-radius:var(--r);font-size:15.5px;font-weight:600;
  transition:all .22s var(--ease);white-space:nowrap;border:0;cursor:pointer;font-family:inherit;
}
.btn-p{background:var(--orange);color:#fff}
.btn-p:hover{background:var(--orange-dark);transform:translateY(-2px)}
.btn-g{border:1.5px solid rgba(255,255,255,.3);color:#fff;background:transparent}
.btn-g:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-o{border:1.5px solid var(--steel-300);color:var(--ink);background:transparent}
.btn-o:hover{border-color:var(--ink);background:var(--paper)}
.btn svg{width:16px;height:16px;flex-shrink:0}

/* ============================================================
   首屏
   ============================================================ */
.hero{position:relative;background:var(--steel-900);overflow:hidden;display:flex;align-items:center;min-height:min(calc(100dvh - var(--nav-h)),700px)}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.32;filter:grayscale(.3) contrast(1.06)}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(15,18,22,.97) 0%,rgba(15,18,22,.84) 44%,rgba(15,18,22,.4) 100%)}
.hero-in{position:relative;z-index:1;width:100%;max-width:var(--max);margin:0 auto;padding:72px 24px 64px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:60px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--ember);font-size:12.5px;font-weight:600;letter-spacing:.09em;margin-bottom:22px}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--orange);flex-shrink:0}
.hero-h{color:#fff;font-size:clamp(2rem,4.2vw,3.5rem);line-height:1.14;font-weight:800;letter-spacing:-.02em;margin-bottom:24px}
.hero-h em{font-style:normal;color:var(--ember)}
.hero-p{color:var(--steel-300);font-size:1.0625rem;line-height:1.75;max-width:50ch;margin-bottom:34px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}

.spec-panel{background:rgba(25,29,35,.88);border:1px solid rgba(255,255,255,.11);border-radius:6px;overflow:hidden;backdrop-filter:blur(10px)}
.spec-head{padding:17px 24px;border-bottom:1px solid rgba(255,255,255,.1);display:flex;align-items:center;justify-content:space-between;gap:16px}
.spec-head span:first-child{color:#fff;font-size:14.5px;font-weight:600}
.spec-head span:last-child{color:var(--steel-500);font-size:11px;letter-spacing:.11em}
.spec-row{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:14px 24px;border-bottom:1px solid rgba(255,255,255,.065)}
.spec-row:last-child{border-bottom:0}
.spec-k{color:var(--steel-300);font-size:14px}
.spec-v{color:#fff;font-size:15px;font-weight:700;white-space:nowrap}
.spec-v i{font-style:normal;color:var(--ember);font-size:11.5px;font-weight:500;margin-left:4px}
.spec-foot{padding:12px 24px;font-size:12px;color:var(--steel-500);border-top:1px solid rgba(255,255,255,.09);line-height:1.55}

/* ============================================================
   信任条
   ============================================================ */
.trust{border-bottom:1px solid var(--line);background:var(--white)}
.trust-in{max-width:var(--max);margin:0 auto;padding:22px 24px;display:flex;gap:42px;flex-wrap:wrap;align-items:center}
.trust-i{display:flex;align-items:center;gap:10px;color:var(--ink-2);font-size:14px}
.trust-i svg{width:17px;height:17px;color:var(--orange);flex-shrink:0}

/* ============================================================
   区块
   ============================================================ */
.sec{padding:88px 0}
.sec-paper{background:var(--paper)}
.sec-head{max-width:770px;margin-bottom:50px}
.sec-head h2{font-size:clamp(1.6rem,2.9vw,2.35rem);line-height:1.2;font-weight:750;letter-spacing:-.015em;margin-bottom:15px}
.sec-head p{color:var(--ink-3);font-size:1.0625rem;line-height:1.75;max-width:62ch}
.sec-head-center{max-width:770px;margin:0 auto 50px;text-align:center}
.sec-head-center p{margin-left:auto;margin-right:auto}

/* ============================================================
   行业卡
   ============================================================ */
.ind-wrap{display:grid;grid-template-columns:minmax(0,1.42fr) minmax(0,1fr);gap:20px;align-items:stretch}
.ind-stack{display:grid;grid-template-rows:1fr 1fr;gap:20px;min-height:0}
.ind-card{position:relative;border-radius:6px;overflow:hidden;display:flex;flex-direction:column;justify-content:flex-end;background:var(--steel-800);min-height:250px}
.ind-card.big{min-height:540px}
.ind-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.48;transition:transform .8s var(--ease),opacity .4s}
.ind-card:hover img{transform:scale(1.05);opacity:.6}
.ind-card::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(15,18,22,.96) 10%,rgba(15,18,22,.5) 58%,rgba(15,18,22,.22) 100%)}
.ind-body{position:relative;z-index:1;padding:28px 26px}
.ind-card.big .ind-body{padding:38px 36px}
.ind-tag{display:inline-block;color:var(--ember);font-size:11.5px;font-weight:700;letter-spacing:.11em;margin-bottom:11px}
.ind-body h3{color:#fff;font-size:1.25rem;font-weight:700;margin-bottom:10px;line-height:1.3}
.ind-card.big .ind-body h3{font-size:1.6rem}
.ind-body p{color:var(--steel-300);font-size:14.5px;line-height:1.68;margin-bottom:16px}
.ind-specs{display:flex;flex-direction:column;gap:7px;margin-bottom:18px}
.ind-spec{display:flex;justify-content:space-between;gap:14px;font-size:13.5px;color:var(--steel-300);border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:6px}
.ind-spec b{color:#fff;font-weight:600;white-space:nowrap}
.ind-link{display:inline-flex;align-items:center;gap:7px;color:var(--ember);font-size:14.5px;font-weight:600}
.ind-link svg{width:15px;height:15px;transition:transform .22s}
.ind-card:hover .ind-link svg{transform:translateX(4px)}

/* ============================================================
   产品卡
   ============================================================ */
.prod-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.prod-card{background:var(--white);border:1px solid var(--line);border-radius:6px;overflow:hidden;display:flex;flex-direction:column;transition:border-color .25s,transform .25s var(--ease),box-shadow .25s}
.prod-card:hover{border-color:var(--steel-300);transform:translateY(-4px);box-shadow:0 12px 28px -14px rgba(20,22,26,.2)}
.prod-img{aspect-ratio:4/3;overflow:hidden;background:var(--paper);position:relative}
.prod-img img{width:100%;height:100%;object-fit:cover;transition:transform .65s var(--ease)}
.prod-card:hover .prod-img img{transform:scale(1.04)}
.prod-b{padding:20px 20px 22px;flex:1;display:flex;flex-direction:column}
.prod-b h3{font-size:1.0625rem;font-weight:700;margin-bottom:8px;line-height:1.35}
.prod-b h3 a:hover{color:var(--orange)}
.prod-b p{color:var(--ink-3);font-size:13.5px;line-height:1.65;margin-bottom:14px;flex:1}
.prod-meta{display:flex;flex-wrap:wrap;gap:6px}
.chip{background:var(--paper);border:1px solid var(--line);color:var(--ink-2);font-size:11.5px;padding:3.5px 9px;border-radius:3px;white-space:nowrap}

/* ============================================================
   能力网格
   ============================================================ */
.cap-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:6px;overflow:hidden}
.cap-i{padding:34px 32px;display:grid;grid-template-columns:50px 1fr;gap:19px;background:var(--white)}
.cap-ico{width:50px;height:50px;border:1px solid rgba(209,70,10,.34);border-radius:4px;display:grid;place-items:center;background:rgba(209,70,10,.07)}
.cap-ico svg{width:22px;height:22px;color:var(--orange)}
.cap-i h3{font-size:1.0625rem;font-weight:700;margin-bottom:8px;line-height:1.35}
.cap-i p{color:var(--ink-3);font-size:14.5px;line-height:1.7}

/* ============================================================
   流程时间轴
   ============================================================ */
.tl{position:relative;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0}
.tl::before{content:"";position:absolute;top:7px;left:8%;right:8%;height:1px;background:var(--line)}
.tl-i{position:relative;padding:0 16px;text-align:center}
.tl-dot{width:15px;height:15px;border-radius:50%;background:var(--white);border:2px solid var(--orange);margin:0 auto 22px;position:relative;z-index:1}
.tl-i h3{font-size:1rem;font-weight:700;margin-bottom:8px;line-height:1.35}
.tl-i p{color:var(--ink-3);font-size:13.5px;line-height:1.66}

/* ============================================================
   关于 + 信息表
   ============================================================ */
.about-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;align-items:start}
.about-grid h2{font-size:clamp(1.6rem,2.9vw,2.35rem);line-height:1.2;font-weight:750;letter-spacing:-.015em;margin-bottom:20px}
.about-grid p{color:var(--ink-2);font-size:1.0625rem;line-height:1.8;margin-bottom:18px}
.facts{border:1px solid var(--line);border-radius:6px;overflow:hidden;background:var(--white)}
.facts-h{padding:16px 22px;border-bottom:1px solid var(--line);font-size:14px;font-weight:700;background:var(--paper)}
.fact{display:flex;justify-content:space-between;gap:16px;align-items:baseline;padding:15px 22px;border-bottom:1px solid var(--line-2);font-size:14.5px}
.fact:last-child{border-bottom:0}
.fact span:first-child{color:var(--ink-3)}
.fact span:last-child{font-weight:650;text-align:right}

/* ============================================================
   案例
   ============================================================ */
.case-grid{display:grid;grid-template-columns:1.42fr 1fr 1fr;gap:18px}
.case-i{position:relative;border-radius:6px;overflow:hidden;min-height:300px;background:var(--steel-800);display:block}
.case-i img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.74;transition:transform .8s var(--ease)}
.case-i:hover img{transform:scale(1.04)}
.case-i::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(15,18,22,.92),rgba(15,18,22,.06) 62%)}
.case-b{position:relative;z-index:1;height:100%;display:flex;flex-direction:column;justify-content:flex-end;padding:26px}
.case-b h3{color:#fff;font-size:1.0625rem;font-weight:700;margin-bottom:6px;line-height:1.35}
.case-b p{color:var(--steel-300);font-size:13.5px;line-height:1.6}
.note{margin-top:22px;font-size:13.5px;color:var(--ink-3);display:flex;align-items:flex-start;gap:9px}
.note svg{width:16px;height:16px;color:var(--orange);flex-shrink:0;margin-top:3px}

/* ============================================================
   询价区
   ============================================================ */
.contact{background:var(--white);border-top:1px solid var(--line)}
.contact-grid{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:56px;align-items:start}
.contact h2{font-size:clamp(1.5rem,2.7vw,2.1rem);line-height:1.24;font-weight:750;letter-spacing:-.015em;margin-bottom:16px}
.contact .lead{color:var(--ink-2);font-size:1.0625rem;line-height:1.78;margin-bottom:30px}
.cline{display:flex;align-items:center;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);color:var(--ink-3);font-size:14.5px}
.cline svg{width:17px;height:17px;color:var(--orange);flex-shrink:0}
.cline b{color:var(--ink);font-weight:650}
.cline a:hover{color:var(--orange)}

/* ============================================================
   表单
   ============================================================ */
.form{background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:30px}
.form h3{font-size:1.0625rem;font-weight:700;margin-bottom:22px}
.fg{margin-bottom:18px}
.fg label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-2);margin-bottom:7px}
.fg label .req{color:var(--orange);margin-left:3px}
.fg input,.fg select,.fg textarea{
  width:100%;background:var(--white);border:1px solid var(--steel-300);border-radius:var(--r);
  color:var(--ink);font-size:15px;padding:11px 14px;font-family:inherit;
  transition:border-color .2s,box-shadow .2s;
}
.fg input::placeholder,.fg textarea::placeholder{color:var(--ink-3)}
.fg input:focus,.fg select:focus,.fg textarea:focus{outline:0;border-color:var(--orange);box-shadow:0 0 0 3px rgba(209,70,10,.18)}
.fg textarea{resize:vertical;min-height:92px}
.fg select{appearance:none;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235a6472' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;background-size:16px;padding-right:38px}
.fg .hint{font-size:12.5px;color:var(--ink-3);margin-top:6px}
.fg input.bad,.fg textarea.bad{border-color:var(--orange-dark);background:#fdf3ef}
.form-err{background:#fdeceb;border:1px solid #eeb4ae;color:#8a1f18;font-size:13.5px;padding:10px 12px;border-radius:4px;margin-bottom:16px;line-height:1.5}
.form-ok{background:#eaf6ee;border:1px solid #a8d5b8;color:#1f5c37;font-size:14px;padding:16px;border-radius:4px;line-height:1.6}
.submit{width:100%;background:var(--orange);color:#fff;border:0;border-radius:var(--r);padding:14px;font-size:15.5px;font-weight:650;cursor:pointer;font-family:inherit;transition:background .2s}
.submit:hover{background:var(--orange-dark)}
.submit:active{transform:translateY(1px)}
.submit:disabled{opacity:.7;cursor:default}
.form-note{font-size:12.5px;color:var(--ink-3);margin-top:14px;text-align:center;line-height:1.55}

/* ============================================================
   内页
   ============================================================ */
.page-head{background:var(--steel-900);color:#fff;padding:64px 0 56px}
.page-head .wrap{position:relative}
.breadcrumb{font-size:13px;color:var(--steel-500);margin-bottom:16px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.breadcrumb a:hover{color:#fff}
.page-head h1{font-size:clamp(1.75rem,3.4vw,2.6rem);font-weight:800;letter-spacing:-.02em;line-height:1.18;margin-bottom:16px}
.page-head .lead{color:var(--steel-300);font-size:1.0625rem;line-height:1.75;max-width:62ch}

.entry{max-width:820px}
.entry h2{font-size:1.5rem;font-weight:700;margin:40px 0 16px;letter-spacing:-.01em}
.entry h3{font-size:1.1875rem;font-weight:700;margin:30px 0 12px}
.entry p{font-size:1.0625rem;line-height:1.85;color:var(--ink-2);margin-bottom:18px}
.entry ul,.entry ol{margin:0 0 18px 22px;font-size:1.0625rem;line-height:1.85;color:var(--ink-2)}
.entry ul li{list-style:disc;margin-bottom:8px}
.entry ol li{list-style:decimal;margin-bottom:8px}
.entry a{color:var(--orange);text-decoration:underline;text-underline-offset:3px}
.entry a:hover{color:var(--orange-dark)}
.entry img{border-radius:6px;margin:24px 0}
.entry blockquote{border-left:3px solid var(--orange);padding:4px 0 4px 20px;margin:24px 0;color:var(--ink-3);font-size:1.0625rem;line-height:1.8}
.entry table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14.5px}
.entry th,.entry td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.entry th{background:var(--paper);font-weight:700}
.entry code{background:var(--paper);border:1px solid var(--line);border-radius:3px;padding:2px 6px;font-size:.9em;font-family:ui-monospace,Consolas,monospace}

/* 文章列表 */
.post-list{display:grid;gap:20px}
.post-item{border:1px solid var(--line);border-radius:6px;overflow:hidden;display:grid;grid-template-columns:280px 1fr;transition:border-color .25s,box-shadow .25s}
.post-item:hover{border-color:var(--steel-300);box-shadow:0 10px 26px -16px rgba(20,22,26,.2)}
.post-item .pi-img{background:var(--paper);overflow:hidden}
.post-item .pi-img img{width:100%;height:100%;object-fit:cover;min-height:190px}
.post-item .pi-b{padding:26px 28px;display:flex;flex-direction:column;justify-content:center}
.post-item .pi-meta{font-size:12.5px;color:var(--ink-3);letter-spacing:.04em;margin-bottom:10px}
.post-item h3{font-size:1.1875rem;font-weight:700;line-height:1.35;margin-bottom:10px}
.post-item h3 a:hover{color:var(--orange)}
.post-item p{color:var(--ink-3);font-size:14.5px;line-height:1.7;margin-bottom:14px}
.post-item .pi-more{color:var(--orange);font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:7px}
.post-item .pi-more svg{width:15px;height:15px;transition:transform .22s}
.post-item:hover .pi-more svg{transform:translateX(4px)}

/* 分页 */
.pagination{display:flex;gap:8px;justify-content:center;margin-top:48px;flex-wrap:wrap}
.pagination .page-numbers{
  min-width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r);font-size:14.5px;color:var(--ink-2);padding:0 12px;
}
.pagination .page-numbers:hover{border-color:var(--steel-300);background:var(--paper)}
.pagination .page-numbers.current{background:var(--orange);border-color:var(--orange);color:#fff;font-weight:600}

/* 404 */
.err-wrap{text-align:center;padding:40px 0 20px}
.err-code{font-family:ui-monospace,Consolas,monospace;font-size:clamp(4rem,12vw,8rem);font-weight:800;color:var(--line);line-height:1;letter-spacing:-.04em}
.err-wrap h1{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:750;margin:18px 0 14px}
.err-wrap p{color:var(--ink-3);font-size:1.0625rem;line-height:1.75;max-width:52ch;margin:0 auto 30px}

/* 侧栏 */
.with-side{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}
.widget{border:1px solid var(--line);border-radius:6px;padding:24px;margin-bottom:20px;background:var(--white)}
.widget h4{font-size:14.5px;font-weight:700;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.widget ul li{margin-bottom:11px;font-size:14.5px;color:var(--ink-2)}
.widget ul li a:hover{color:var(--orange)}
.widget ul li:last-child{margin-bottom:0}

/* ============================================================
   友情链接 + 邮箱订阅
   ============================================================ */
.connect{background:var(--white);border-top:1px solid var(--line)}
.connect-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:start}
.connect-h{font-size:clamp(1.35rem,2.3vw,1.85rem);font-weight:750;letter-spacing:-.01em;line-height:1.25;margin-bottom:12px}
.connect-p{color:var(--ink-3);font-size:1rem;line-height:1.72;max-width:48ch;margin-bottom:26px}

.social-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(132px,1fr));gap:12px}
.social-i{
  display:flex;align-items:center;gap:11px;padding:13px 16px;
  border:1px solid var(--line);border-radius:var(--r);background:var(--white);
  transition:border-color .22s,background .22s,transform .22s var(--ease);
  min-height:52px;
}
.social-i:hover{border-color:var(--orange);background:var(--paper);transform:translateY(-2px)}
.social-ico{
  width:36px;height:36px;flex-shrink:0;display:grid;place-items:center;
  border:1px solid var(--line);border-radius:3px;background:var(--paper);
  color:var(--ink-2);transition:background .22s,color .22s,border-color .22s;
}
.social-i:hover .social-ico{background:var(--orange);border-color:var(--orange);color:#fff}
.social-i:focus-visible{outline:2px solid var(--orange);outline-offset:2px}
.social-name{font-size:14.5px;font-weight:600;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.connect-empty{border:1px dashed var(--line);border-radius:6px;padding:26px;background:var(--paper)}
.connect-empty p{font-size:14.5px;line-height:1.7;color:var(--ink-3)}
.connect-empty p:first-child{color:var(--ink-2);font-weight:600;margin-bottom:8px}

.sub-card{border:1px solid var(--line);border-radius:6px;padding:32px;background:var(--paper)}
.sub-ico{
  width:46px;height:46px;display:grid;place-items:center;margin-bottom:20px;
  border:1px solid rgba(209,70,10,.34);border-radius:4px;
  background:rgba(209,70,10,.07);color:var(--orange);
}
.sub-row{display:flex;gap:10px}
.sub-row input{
  flex:1;min-width:0;background:var(--white);border:1px solid var(--steel-300);
  border-radius:var(--r);color:var(--ink);font-size:15px;padding:12px 14px;
  font-family:inherit;transition:border-color .2s,box-shadow .2s;
}
.sub-row input::placeholder{color:var(--ink-3)}
.sub-row input:focus{outline:0;border-color:var(--orange);box-shadow:0 0 0 3px rgba(209,70,10,.18)}
.sub-row input.bad{border-color:var(--orange-dark);background:#fdf3ef}
.sub-btn{
  background:var(--orange);color:#fff;border:0;border-radius:var(--r);
  padding:12px 26px;font-size:15px;font-weight:650;cursor:pointer;
  font-family:inherit;white-space:nowrap;transition:background .2s;flex-shrink:0;
}
.sub-btn:hover{background:var(--orange-dark)}
.sub-btn:active{transform:translateY(1px)}
.sub-btn:disabled{opacity:.72;cursor:default}
.sub-msg{margin-top:12px;font-size:14px;line-height:1.6;padding:11px 13px;border-radius:4px}
.sub-msg.ok{background:#eaf6ee;border:1px solid #a8d5b8;color:#1f5c37}
.sub-msg.err{background:#fdeceb;border:1px solid #eeb4ae;color:#8a1f18}
.sub-note{font-size:12.5px;color:var(--ink-3);margin-top:14px;line-height:1.6}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{background:var(--steel-900);color:var(--steel-500);padding:56px 0 30px;font-size:14px}
.f-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.09)}
.f-grid h4{color:#fff;font-size:14.5px;font-weight:700;margin-bottom:17px}
.f-grid ul{display:flex;flex-direction:column;gap:11px}
.f-grid a:hover{color:#fff}
.f-desc{line-height:1.75;max-width:36ch;margin-top:16px}
.f-brand{display:flex;align-items:center;gap:11px}
.f-bot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;padding-top:24px;font-size:13px}

/* ============================================================
   动效
   ============================================================ */
.rv{opacity:0;transform:translateY(24px)}
.rv.seen{opacity:1;transform:none;transition:opacity .75s var(--ease),transform .75s var(--ease)}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .rv{opacity:1!important;transform:none!important}
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1100px){
  .prod-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tl{grid-template-columns:repeat(3,minmax(0,1fr));gap:34px 0}
  .tl::before{display:none}
  .tl-dot{margin-bottom:18px}
  .with-side{grid-template-columns:1fr;gap:40px}
}

/* 1100px 以下的页面布局调整（栅格堆叠）*/
@media (max-width:1100px){
  .hero{min-height:auto}
  .hero-in{padding:56px 24px}
  .ind-wrap{grid-template-columns:1fr;gap:16px}
  .ind-card.big{min-height:400px}
  .ind-stack{grid-template-rows:auto}
  .ind-card{min-height:290px}
  .cap-grid{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr;gap:36px}
  .case-grid{grid-template-columns:1fr}
  .case-i{min-height:270px}
  .contact-grid{grid-template-columns:1fr;gap:36px}
  .f-grid{grid-template-columns:1fr 1fr;gap:32px}
  .post-item{grid-template-columns:1fr}
  .post-item .pi-img img{min-height:210px}
}
@media (max-width:600px){
  .sec{padding:62px 0}
  .social-grid{grid-template-columns:1fr 1fr}
  .social-i{padding:11px 13px;gap:9px}
  .social-ico{width:32px;height:32px}
  .social-name{font-size:13.5px}
  .sub-card{padding:24px 20px}
  .sub-row{flex-direction:column}
  .sub-btn{width:100%}
  .prod-grid{grid-template-columns:1fr}
  .tl{grid-template-columns:1fr;gap:0}
  .tl-i{text-align:left;padding:0 0 0 34px;margin-bottom:30px}
  .tl-i:last-child{margin-bottom:0}
  .tl-i::before{content:"";position:absolute;left:7px;top:16px;bottom:-30px;width:1px;background:var(--line)}
  .tl-i:last-child::before{display:none}
  .tl-dot{position:absolute;left:0;top:3px;margin:0}
  .f-grid{grid-template-columns:1fr}
  .hero-btns .btn{width:100%}
  .trust-in{gap:18px}
  .form{padding:24px 20px}
  .page-head{padding:48px 0 40px}
}

/* ============================================================
   导航响应式（必须放在文件末尾）

   为什么放最后：CSS 层叠中，同优先级规则后者胜。
   导航基础样式定义在前文，这些断点必须在其后才生效。

   单行所需的宽度构成：
     内边距 48px + 品牌区 + 菜单项 + 报价按钮 110px
     + 切换器 90px + 间距若干
   实测各语言全幅所需（菜单已合并为 6 项 + 1 下拉）：
     中文 ≈ 780px，英文 ≈ 870px，俄文 ≈ 900px
   因此：
     ≥ 1200px  宽松间距，完整展示
     1000–1199 收紧间距，仍完整展示
     < 1000px  收进汉堡菜单（避免溢出）
   ============================================================ */

/* ---- ≥ 1200px：宽松 ---- */
@media (min-width:1200px){
  .nav-in{gap:30px}
  .nav-links{gap:18px}
  .nav-links > ul{gap:22px}
  .nav-links li > a{font-size:15px}
}

/* ---- 1000–1199px：收紧，但仍横向 ---- */
@media (max-width:1199px) and (min-width:1000px){
  .nav-in{gap:16px;padding:0 18px}
  .nav-links{gap:11px}
  .nav-links > ul{gap:13px}
  .nav-links li > a{font-size:13.5px}
  .brand-txt{font-size:16px}
  .brand-sub{font-size:9.5px;letter-spacing:.1em}
  .nav-cta{padding:8px 14px;font-size:13.5px}
  .lang-sw--nav .lang-toggle{padding:6px 8px;font-size:11.5px}
}

/* ---- < 1000px：汉堡菜单 ---- */
@media (max-width:999px){
  .nav-in{gap:14px}
  .burger{display:block}

  .nav-links{
    position:fixed;top:var(--nav-h);left:0;right:0;
    background:var(--steel-800);
    flex-direction:column;align-items:stretch;gap:0;
    padding:6px 0;margin:0;
    border-bottom:1px solid rgba(255,255,255,.11);
    display:none;
    max-height:calc(100dvh - var(--nav-h));
    overflow-y:auto;
    -webkit-overflow-scrolling:touch;
  }
  .nav-links.open{display:flex}

  /* 登录后需避开管理工具栏 */
  body.admin-bar .nav-links{top:calc(32px + var(--nav-h))}

  .nav-links > ul{flex-direction:column;align-items:stretch;gap:0;width:100%}
  .nav-links li{width:100%}
  .nav-links li > a{
    padding:15px 24px;
    border-bottom:1px solid rgba(255,255,255,.07);
    font-size:15px;
  }
  .nav-links li.current-menu-item > a::after{display:none}
  .nav-links li.current-menu-item > a,
  .nav-links li.current-menu-ancestor > a{color:var(--orange)}

  /* 下拉在移动端改为展开状态 */
  .nav-links .menu-item-has-children > a::after{content:"\25BE";opacity:.5}
  .nav-links .sub-menu{
    position:static;display:flex;background:rgba(0,0,0,.25);
    border:0;border-radius:0;padding:0;box-shadow:none;min-width:0;
  }
  .nav-links .sub-menu li a{padding:13px 24px 13px 42px;font-size:13.5px}

  .nav-cta{margin:14px 24px;text-align:center;display:block;padding:12px 20px}
  .nav-lang{display:none}

  /* 语言切换器：整行 */
  .lang-sw--nav{margin:12px 24px 8px;width:auto}
  .lang-sw--nav .lang-toggle{width:100%;justify-content:center;padding:11px;font-size:13px}
  .lang-sw--nav .lang-list{
    position:static;opacity:1;visibility:visible;transform:none;
    width:100%;margin-top:8px;box-shadow:none;background:rgba(0,0,0,.22);
  }
}

/* ---- < 782px：管理工具栏高度变为 46px ---- */
@media (max-width:782px){
  body.admin-bar .nav-links{top:calc(46px + var(--nav-h))}
}