/* ==========================================================================
   PCBAPEX 快闪贴 · 官网样式系统
   品牌色：科技蓝 (#1AA0F0) + 闪电绿 (#41E08A)
   纯静态 · 响应式 · 无外部依赖
   ========================================================================== */

/* ---------- 设计变量 ---------- */
:root{
  --brand:#1AA0F0;
  --brand-600:#0E86D6;
  --brand-700:#0B6FB6;
  --brand-800:#0A5793;
  --brand-050:#E9F4FE;
  --brand-100:#CDE7FC;
  --accent:#41E08A;
  --accent-600:#1FB86A;

  --ink:#0F2030;
  --title:#0C1A28;
  --slate:#566579;
  --muted:#8695A8;

  --bg:#FFFFFF;
  --bg-soft:#F2F7FB;
  --bg-dark:#0A1626;
  --bg-dark-2:#0E2137;
  --line:#E4EAF0;
  --line-2:#EEF2F7;

  --shadow-sm:0 1px 2px rgba(10,20,34,.06),0 1px 3px rgba(10,20,34,.08);
  --shadow:0 6px 24px rgba(10,20,34,.08);
  --shadow-lg:0 18px 50px rgba(10,20,34,.14);
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:22px;

  --maxw:1200px;
  --header-h:74px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 基础重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,"Noto Sans SC",sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--title);line-height:1.28;font-weight:800;letter-spacing:.2px}
p{margin:0}
button{font-family:inherit;cursor:pointer;border:none;background:none}
:focus-visible{outline:3px solid rgba(26,160,240,.45);outline-offset:2px;border-radius:6px}

/* ---------- 布局容器 ---------- */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:84px 0}
.section--soft{background:var(--bg-soft)}
.section--tight{padding:60px 0}
.grid{display:grid;gap:24px}
.text-center{text-align:center}

/* ---------- 通用文字 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;
  color:var(--brand-700);background:var(--brand-050);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:16px;height:2px;background:var(--accent-600);border-radius:2px}
.section-title{font-size:clamp(26px,3.2vw,40px);margin-bottom:14px}
.section-sub{color:var(--slate);font-size:clamp(15px,1.4vw,17px);max-width:720px;margin:0 auto}
.section-head{margin-bottom:48px}
.section-head.center{text-align:center}
.section-head.center .eyebrow{justify-content:center}
.lead{font-size:18px;color:var(--slate)}
.accent{color:var(--brand-700)}
.hl{background:linear-gradient(180deg,transparent 62%,rgba(65,224,138,.55) 62%)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-weight:700;font-size:15px;padding:13px 26px;border-radius:999px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
  white-space:nowrap;cursor:pointer;border:2px solid transparent;
}
.btn svg{width:18px;height:18px}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(26,160,240,.32)}
.btn--primary:hover{background:var(--brand-700);transform:translateY(-2px);box-shadow:0 14px 30px rgba(26,160,240,.4)}
.btn--accent{background:var(--accent);color:#05351F;box-shadow:0 10px 24px rgba(65,224,138,.4)}
.btn--accent:hover{background:var(--accent-600);transform:translateY(-2px)}
.btn--ghost{background:transparent;color:var(--brand-700);border-color:var(--brand-100)}
.btn--ghost:hover{border-color:var(--brand);background:var(--brand-050)}
.btn--light{background:#fff;color:var(--brand-700);box-shadow:var(--shadow-sm)}
.btn--light:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn--outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn--outline-light:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.btn--lg{padding:16px 34px;font-size:16px}
.btn--block{width:100%}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--bg-dark);color:#cfe6e2;font-size:13px}
.topbar .container{display:flex;align-items:center;justify-content:space-between;height:38px}
.topbar a{color:#cfe6e2}
.topbar a:hover{color:#fff}
.topbar__left{display:flex;gap:22px;align-items:center}
.topbar__left span{display:inline-flex;align-items:center;gap:7px}
.topbar__left svg{width:14px;height:14px;opacity:.8}
.topbar__right{display:flex;gap:16px;align-items:center}
.topbar__right .sep{opacity:.3}

/* ---------- 页头导航 ---------- */
.header{position:sticky;top:0;z-index:900;background:rgba(255,255,255,.92);backdrop-filter:saturate(150%) blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:11px}
.brand__logo{height:48px;width:auto}
.brand__txt{display:flex;flex-direction:column;line-height:1.05}
.brand__name{font-weight:900;font-size:19px;letter-spacing:.5px;color:var(--brand-700)}
.brand__tag{font-size:11px;color:var(--slate);letter-spacing:2px}

.menu{display:flex;align-items:center;gap:2px}
.menu>li{position:relative}
.menu>li>a{display:flex;align-items:center;gap:4px;padding:8px 10px;font-weight:600;font-size:14px;color:var(--ink);border-radius:8px;white-space:nowrap}
.menu>li>a:hover,.menu>li.active>a{color:var(--brand-700);background:var(--brand-050)}
.menu>li>a .caret{width:9px;height:9px;transition:transform .2s var(--ease)}
.menu>li:hover>a .caret{transform:rotate(180deg)}
.has-drop>a::after{}
.dropdown{
  position:absolute;top:calc(100% + 8px);left:0;min-width:230px;
  background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-lg);
  padding:8px;opacity:0;visibility:hidden;transform:translateY(8px);
  transition:all .22s var(--ease);
}
.has-drop:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown li a{display:flex;flex-direction:column;padding:10px 14px;border-radius:10px}
.dropdown li a:hover{background:var(--brand-050)}
.dropdown .d-t{font-weight:700;font-size:15px;color:var(--ink)}
.dropdown .d-d{font-size:12.5px;color:var(--muted)}
.nav__cta{display:flex;align-items:center;gap:12px}

/* 汉堡按钮 */
.hamburger{display:none;width:44px;height:44px;border-radius:10px;position:relative;background:var(--brand-050)}
.hamburger span{position:absolute;left:11px;right:11px;height:2.5px;background:var(--brand-700);border-radius:3px;transition:all .25s var(--ease)}
.hamburger span:nth-child(1){top:14px}
.hamburger span:nth-child(2){top:21px}
.hamburger span:nth-child(3){top:28px}
body.menu-open .hamburger span:nth-child(1){top:21px;transform:rotate(45deg)}
body.menu-open .hamburger span:nth-child(2){opacity:0}
body.menu-open .hamburger span:nth-child(3){top:21px;transform:rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;background:linear-gradient(160deg,#0A1626 0%,#0C2038 45%,#0B3057 100%);color:#eafaf7;overflow:hidden}
.hero__bg{position:absolute;inset:0;opacity:.5;pointer-events:none}
.hero__glow{position:absolute;width:620px;height:620px;border-radius:50%;filter:blur(90px);pointer-events:none}
.hero__glow--1{background:rgba(26,160,240,.35);top:-180px;right:-120px}
.hero__glow--2{background:rgba(65,224,138,.14);bottom:-200px;left:-120px}
.hero .container{position:relative;z-index:2}
.hero__wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:center;padding:76px 0 84px}
.hero__badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);color:#bff3ec;padding:7px 15px;border-radius:999px;font-size:13.5px;font-weight:600;margin-bottom:22px}
.hero__badge .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(65,224,138,.25)}
.hero h1{color:#fff;font-size:clamp(32px,4.4vw,54px);line-height:1.16;letter-spacing:.5px}
.hero h1 .y{color:var(--accent)}
.hero__desc{margin:22px 0 30px;font-size:clamp(15px,1.5vw,18px);color:#c4ded9;max-width:540px}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap}
.hero__mini{display:flex;gap:26px;margin-top:34px;flex-wrap:wrap}
.hero__mini .m{display:flex;flex-direction:column}
.hero__mini .m b{font-size:26px;color:#fff;font-weight:900}
.hero__mini .m span{font-size:13px;color:#9fc4be}

/* Hero 视觉卡 */
.hero__visual{position:relative}
.hero__card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:22px;padding:22px;backdrop-filter:blur(6px);box-shadow:var(--shadow-lg)}
.hero__pcb{border-radius:16px;overflow:hidden;background:#06111E;border:1px solid rgba(255,255,255,.08)}
.hero__chips{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px}
.hero__chip{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:12px;text-align:center}
.hero__chip svg{width:26px;height:26px;margin:0 auto 6px;color:var(--accent)}
.hero__chip b{display:block;color:#fff;font-size:14px}
.hero__chip span{font-size:11.5px;color:#9fc4be}
.hero__float{position:absolute;background:#fff;color:var(--ink);border-radius:14px;box-shadow:var(--shadow-lg);padding:12px 16px;display:flex;align-items:center;gap:10px;font-weight:700;font-size:14px}
.hero__float svg{width:30px;height:30px;color:var(--brand)}
.hero__float--1{top:-14px;left:-18px;animation:floaty 4s ease-in-out infinite}
.hero__float--2{bottom:-16px;right:-12px;animation:floaty 4s ease-in-out infinite .8s}
.hero__float small{display:block;font-weight:500;font-size:11px;color:var(--muted)}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}

/* ---------- 统计条 ---------- */
.stats{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);margin-top:-46px;position:relative;z-index:5}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stats__item{padding:30px 24px;text-align:center;border-right:1px solid var(--line-2)}
.stats__item:last-child{border-right:none}
.stats__item b{display:block;font-size:34px;font-weight:900;color:var(--brand-700);line-height:1}
.stats__item b i{font-style:normal;color:var(--accent-600)}
.stats__item>span{display:block;margin-top:8px;color:var(--slate);font-size:14px}

/* ---------- 卡片通用 ---------- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--brand-100)}
.cards-3{grid-template-columns:repeat(3,1fr)}
.cards-4{grid-template-columns:repeat(4,1fr)}
.cards-2{grid-template-columns:repeat(2,1fr)}

/* 服务卡 */
.svc{overflow:hidden;display:flex;flex-direction:column}
.svc__media{height:172px;position:relative;overflow:hidden;background:linear-gradient(145deg,#0C2038,#0B3057)}
.svc__media .media-illus{position:absolute;inset:0}
.svc__tag{position:absolute;top:12px;left:12px;background:var(--accent);color:#05351F;font-size:12px;font-weight:800;padding:4px 11px;border-radius:999px;z-index:2}
.svc__body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.svc__body h3{font-size:19px}
.svc__body p{color:var(--slate);font-size:14.5px;flex:1}
.svc__meta{display:flex;flex-wrap:wrap;gap:6px}
.svc__meta span{font-size:12px;color:var(--brand-700);background:var(--brand-050);padding:3px 10px;border-radius:6px}
.svc__link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-weight:700;font-size:14px;margin-top:4px}
.svc__link svg{width:16px;height:16px;transition:transform .2s}
.svc:hover .svc__link svg{transform:translateX(4px)}

/* 特性/图标卡 */
.feature{padding:26px}
.feature__ic{width:54px;height:54px;border-radius:14px;background:var(--brand-050);color:var(--brand-700);display:grid;place-items:center;margin-bottom:16px}
.feature__ic svg{width:28px;height:28px}
.feature h3{font-size:18px;margin-bottom:8px}
.feature p{color:var(--slate);font-size:14.5px}

/* 简洁图标网格 */
.icongrid{grid-template-columns:repeat(3,1fr);gap:18px}
.icongrid .ic{display:flex;gap:14px;align-items:flex-start;padding:20px;border:1px solid var(--line);border-radius:12px;background:#fff;transition:.25s var(--ease)}
.icongrid .ic:hover{border-color:var(--brand-100);box-shadow:var(--shadow);transform:translateY(-3px)}
.icongrid .ic__ic{flex:0 0 auto;width:44px;height:44px;border-radius:11px;background:var(--brand-050);color:var(--brand-700);display:grid;place-items:center}
.icongrid .ic__ic svg{width:24px;height:24px}
.icongrid .ic b{display:block;font-size:15.5px}
.icongrid .ic small{color:var(--muted);font-size:12px;letter-spacing:.5px}
.icongrid .ic p{color:var(--slate);font-size:13.5px;margin-top:3px}

/* ---------- 媒体占位（AI/矢量插画） ---------- */
.media-illus{position:relative;width:100%;height:100%;background:
  radial-gradient(120% 120% at 80% 10%,rgba(26,160,240,.25),transparent 55%),
  linear-gradient(150deg,#0A1A2E,#0B3057);overflow:hidden}
.media-illus .grid-lines{position:absolute;inset:0;opacity:.5}
.media-illus .label{position:absolute;left:14px;bottom:12px;z-index:3;color:#eafaf7;font-size:13px;font-weight:700;display:flex;align-items:center;gap:7px}
.media-illus .label i{width:22px;height:22px;color:var(--accent);flex:0 0 auto}
.media-illus .label i svg{width:100%;height:100%}
.media-illus .ph-tag{position:absolute;right:12px;top:12px;z-index:3;font-size:10.5px;letter-spacing:1px;color:rgba(255,255,255,.55);border:1px solid rgba(255,255,255,.25);border-radius:6px;padding:2px 8px}
.frame{border-radius:16px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
.frame--ratio{aspect-ratio:16/10}
.frame--tall{aspect-ratio:4/5}

/* ---------- 分栏图文 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split--rev .split__media{order:2}
.split__media{position:relative}
.split__list{display:grid;gap:16px;margin-top:24px}
.split__list li{display:flex;gap:13px;align-items:flex-start}
.split__list .ck{flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--brand-050);color:var(--brand-700);display:grid;place-items:center;margin-top:2px}
.split__list .ck svg{width:15px;height:15px}
.split__list b{display:block;font-size:16px}
.split__list p{color:var(--slate);font-size:14px}

/* ---------- 流程步骤 ---------- */
.steps{grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step{position:relative;padding:28px 22px;background:#fff;border:1px solid var(--line);border-radius:14px}
.step__no{font-size:40px;font-weight:900;color:var(--brand-050);line-height:1;position:absolute;top:14px;right:18px}
.step__ic{width:48px;height:48px;border-radius:12px;background:var(--brand);color:#fff;display:grid;place-items:center;margin-bottom:16px;position:relative;z-index:1}
.step__ic svg{width:24px;height:24px}
.step h3{font-size:17px;margin-bottom:8px}
.step p{color:var(--slate);font-size:13.5px}
.steps--line .step:not(:last-child)::after{content:"";position:absolute;top:44px;right:-12px;width:24px;height:2px;background:var(--line);z-index:0}

/* ---------- 能力参数表 ---------- */
.spec-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.spec-table th,.spec-table td{padding:15px 20px;text-align:left;border-bottom:1px solid var(--line-2);font-size:14.5px}
.spec-table th{background:var(--bg-soft);color:var(--title);font-weight:700;width:34%}
.spec-table tr:last-child td,.spec-table tr:last-child th{border-bottom:none}
.spec-table td{color:var(--slate)}
.spec-table tr:hover td,.spec-table tr:hover th{background:var(--brand-050)}

/* ---------- 设备/清单列表 ---------- */
.equip{grid-template-columns:repeat(2,1fr);gap:18px}
.equip .e{display:flex;gap:16px;padding:20px;border:1px solid var(--line);border-radius:12px;background:#fff;transition:.25s}
.equip .e:hover{border-color:var(--brand-100);box-shadow:var(--shadow)}
.equip .e__ic{flex:0 0 auto;width:52px;height:52px;border-radius:12px;background:linear-gradient(150deg,var(--brand),var(--brand-700));color:#fff;display:grid;place-items:center}
.equip .e__ic svg{width:26px;height:26px}
.equip .e b{font-size:16px}
.equip .e span{font-size:12px;color:var(--accent-600);font-weight:700}
.equip .e p{color:var(--slate);font-size:13.5px;margin-top:4px}

/* ---------- 行业方案 ---------- */
.industry{grid-template-columns:repeat(3,1fr);gap:22px}
.ind{position:relative;border-radius:16px;overflow:hidden;min-height:230px;display:flex;align-items:flex-end;color:#fff;border:1px solid var(--line)}
.ind__bg{position:absolute;inset:0}
.ind__ov{position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,18,32,.15),rgba(8,18,32,.86))}
.ind__ct{position:relative;z-index:2;padding:22px}
.ind__ic{width:44px;height:44px;border-radius:11px;background:rgba(255,255,255,.16);display:grid;place-items:center;margin-bottom:12px}
.ind__ic svg{width:24px;height:24px;color:var(--accent)}
.ind h3{color:#fff;font-size:19px;margin-bottom:6px}
.ind p{color:#d8ebe8;font-size:13.5px}

/* ---------- 案例 ---------- */
.case{overflow:hidden;display:flex;flex-direction:column}
.case__media{aspect-ratio:16/10;position:relative}
.case__body{padding:22px;display:flex;flex-direction:column;gap:9px;flex:1}
.case__cat{font-size:12px;font-weight:800;color:var(--brand-700);letter-spacing:.5px}
.case__body h3{font-size:18px}
.case__body p{color:var(--slate);font-size:14px;flex:1}
.case__stat{display:flex;gap:18px;padding-top:12px;border-top:1px solid var(--line-2);margin-top:4px}
.case__stat .s b{display:block;color:var(--brand-700);font-size:18px;font-weight:900}
.case__stat .s span{font-size:11.5px;color:var(--muted)}

/* 客户 logo 墙 */
.logos{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.logos .lg{aspect-ratio:16/9;display:grid;place-items:center;background:#fff;border:1px solid var(--line);border-radius:12px;color:var(--slate);font-weight:800;font-size:15px;letter-spacing:1px;transition:.25s;padding:10px;text-align:center}
.logos .lg:hover{border-color:var(--brand-100);color:var(--brand-700);box-shadow:var(--shadow)}

/* ---------- 评价 ---------- */
.reviews{grid-template-columns:repeat(3,1fr);gap:22px}
.review{padding:26px}
.review__stars{color:var(--accent);letter-spacing:2px;font-size:16px;margin-bottom:12px}
.review p{color:var(--ink);font-size:14.5px;margin-bottom:18px}
.review__who{display:flex;align-items:center;gap:12px}
.review__av{width:42px;height:42px;border-radius:50%;background:linear-gradient(150deg,var(--brand),var(--brand-700));color:#fff;display:grid;place-items:center;font-weight:800}
.review__who b{font-size:14.5px;display:block}
.review__who span{font-size:12px;color:var(--muted)}

/* ---------- FAQ 手风琴 ---------- */
.faq{max-width:860px;margin:0 auto;display:grid;gap:12px}
.qa{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:border-color .2s}
.qa.open{border-color:var(--brand-100);box-shadow:var(--shadow)}
.qa__q{width:100%;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;font-weight:700;font-size:16px;color:var(--title)}
.qa__q .ico{flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--brand-050);color:var(--brand-700);display:grid;place-items:center;transition:.25s var(--ease)}
.qa__q .ico svg{width:15px;height:15px}
.qa.open .qa__q .ico{background:var(--brand);color:#fff;transform:rotate(180deg)}
.qa__a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.qa__a-in{padding:0 22px 20px;color:var(--slate);font-size:14.5px}

/* ---------- CTA 区块 ---------- */
.cta-band{position:relative;background:linear-gradient(150deg,#0B3057,#0A1626);color:#fff;border-radius:var(--radius-lg);overflow:hidden;padding:52px 48px}
.cta-band__bg{position:absolute;inset:0;opacity:.4}
.cta-band .container,.cta-band__in{position:relative;z-index:2}
.cta-band__in{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,34px)}
.cta-band p{color:#c4ded9;margin-top:10px;max-width:540px}
.cta-band__btns{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 询盘表单 ---------- */
.inquiry{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:start}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:30px}
.form h3{font-size:22px;margin-bottom:6px}
.form>p{color:var(--slate);font-size:14px;margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:7px;color:var(--title)}
.field label .req{color:#e5484d}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;font-size:14.5px;
  font-family:inherit;color:var(--ink);background:#fff;transition:border-color .2s,box-shadow .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(26,160,240,.14)}
.field textarea{resize:vertical;min-height:110px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field .hint{font-size:12px;color:var(--muted);margin-top:5px}
.form__note{font-size:12.5px;color:var(--muted);margin-top:14px;text-align:center}
.form-msg{display:none;margin-top:14px;padding:13px 16px;border-radius:10px;font-size:14px}
.form-msg.ok{display:block;background:var(--brand-050);color:var(--brand-700);border:1px solid var(--brand-100)}
.err-text{color:#e5484d;font-size:12px;margin-top:5px;display:none}
.field.invalid input,.field.invalid textarea,.field.invalid select{border-color:#e5484d}
.field.invalid .err-text{display:block}

/* 联系信息侧栏 */
.contact-info{display:grid;gap:16px}
.ci{display:flex;gap:16px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:14px;transition:.25s}
.ci:hover{box-shadow:var(--shadow);border-color:var(--brand-100)}
.ci__ic{flex:0 0 auto;width:48px;height:48px;border-radius:12px;background:var(--brand-050);color:var(--brand-700);display:grid;place-items:center}
.ci__ic svg{width:24px;height:24px}
.ci b{font-size:15px}
.ci p{color:var(--slate);font-size:14px;margin-top:2px}
.ci a{color:var(--brand-700);font-weight:600}

/* ---------- 面包屑 / 子页 Banner ---------- */
.page-hero{position:relative;background:linear-gradient(150deg,#0A1626,#0B3057);color:#fff;overflow:hidden}
.page-hero__bg{position:absolute;inset:0;opacity:.45}
.page-hero .container{position:relative;z-index:2;padding:60px 22px 64px}
.crumb{font-size:13.5px;color:#a7cfc9;margin-bottom:16px;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.crumb a{color:#a7cfc9}.crumb a:hover{color:#fff}
.crumb .sp{opacity:.5}
.page-hero h1{color:#fff;font-size:clamp(28px,3.6vw,44px);margin-bottom:12px}
.page-hero p{color:#c4ded9;max-width:640px;font-size:16px}

/* ---------- 页尾 ---------- */
.footer{background:var(--bg-dark);color:#a9c3bf;padding-top:60px}
.footer__top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer__brand .brand__name{color:#fff}
.footer__brand .brand__tag{color:#7fa8a2}
.footer__desc{margin:18px 0;font-size:14px;color:#8fb0ab;max-width:320px}
.footer__cert{display:flex;gap:10px;flex-wrap:wrap}
.footer__cert span{font-size:12px;border:1px solid rgba(255,255,255,.15);border-radius:6px;padding:4px 10px;color:#bcd6d1}
.footer h4{color:#fff;font-size:15px;margin-bottom:18px}
.footer__links li{margin-bottom:11px}
.footer__links a{color:#a9c3bf;font-size:14px}
.footer__links a:hover{color:var(--accent)}
.footer__contact li{display:flex;gap:11px;margin-bottom:14px;font-size:14px;color:#a9c3bf;align-items:flex-start}
.footer__contact svg{width:18px;height:18px;color:var(--brand);flex:0 0 auto;margin-top:2px}
.footer__contact a{color:#a9c3bf}
.footer__contact a:hover{color:#fff}
.footer__bottom{display:flex;align-items:center;justify-content:space-between;padding:20px 0;font-size:13px;color:#7fa8a2;flex-wrap:wrap;gap:10px}
.footer__bottom a{color:#7fa8a2}
.footer__bottom a:hover{color:#fff}
.footer__social{display:flex;gap:10px}
.footer__social a{width:36px;height:36px;border-radius:9px;background:rgba(255,255,255,.06);display:grid;place-items:center;color:#a9c3bf}
.footer__social a:hover{background:var(--brand);color:#fff}
.footer__social svg{width:18px;height:18px}

/* ---------- 返回顶部 / 悬浮 ---------- */
.to-top{position:fixed;right:22px;bottom:26px;width:48px;height:48px;border-radius:14px;background:var(--brand);color:#fff;display:grid;place-items:center;box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transform:translateY(14px);transition:.3s var(--ease);z-index:800}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand-700)}
.to-top svg{width:22px;height:22px}
.float-contact{position:fixed;right:22px;bottom:84px;width:48px;height:48px;border-radius:14px;background:var(--accent);color:#05351F;display:grid;place-items:center;box-shadow:var(--shadow-lg);z-index:800;transition:.25s}
.float-contact:hover{transform:translateY(-3px)}
.float-contact svg{width:24px;height:24px}

/* ---------- 滚动淡入 ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s var(--ease),transform .6s 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}

/* ---------- 富文本 / 关于页 ---------- */
.prose p{color:var(--slate);margin-bottom:16px;font-size:15.5px}
.prose h3{margin:26px 0 12px;font-size:20px}
.value-grid{grid-template-columns:repeat(3,1fr);gap:22px}
.timeline{position:relative;padding-left:30px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:var(--line)}
.tl{position:relative;padding-bottom:26px}
.tl::before{content:"";position:absolute;left:-26px;top:5px;width:14px;height:14px;border-radius:50%;background:var(--brand);border:3px solid var(--brand-050)}
.tl b{color:var(--brand-700);font-size:15px}
.tl h4{font-size:17px;margin:2px 0 6px}
.tl p{color:var(--slate);font-size:14px}

/* ---------- 数字块 ---------- */
.numbers{grid-template-columns:repeat(4,1fr);gap:22px}
.num{text-align:center;padding:26px;border:1px solid var(--line);border-radius:14px;background:#fff}
.num b{font-size:38px;font-weight:900;color:var(--brand-700);display:block;line-height:1}
.num b i{font-style:normal;color:var(--accent-600)}
.num>span{color:var(--slate);font-size:14px;display:block;margin-top:8px}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero__wrap{grid-template-columns:1fr;gap:40px}
  .hero__visual{max-width:520px}
  .split{gap:38px}
  .footer__top{grid-template-columns:1fr 1fr;gap:32px}
  .cards-4{grid-template-columns:repeat(2,1fr)}
  .icongrid{grid-template-columns:repeat(2,1fr)}
  .industry{grid-template-columns:repeat(2,1fr)}
  .numbers{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1160px){
  .topbar__left span:not(:first-child){display:none}
  .hamburger{display:block}
  .nav__cta .btn--ghost{display:none}
  .menu{
    position:fixed;top:var(--header-h);left:0;right:0;bottom:0;
    background:#fff;flex-direction:column;align-items:stretch;gap:0;
    padding:14px 18px 40px;overflow-y:auto;transform:translateX(100%);
    transition:transform .3s var(--ease);border-top:1px solid var(--line);
  }
  body.menu-open .menu{transform:translateX(0)}
  body.menu-open{overflow:hidden}
  .menu>li{width:100%;border-bottom:1px solid var(--line-2)}
  .menu>li>a{padding:15px 6px;font-size:16px;justify-content:space-between}
  .menu>li>a:hover,.menu>li.active>a{background:none}
  .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;
    max-height:0;overflow:hidden;padding:0 0 0 12px;transition:max-height .3s var(--ease)}
  .has-drop.open-sub .dropdown{max-height:420px;padding-bottom:10px}
  .has-drop>a .caret{transition:transform .25s}
  .has-drop.open-sub>a .caret{transform:rotate(180deg)}
}
@media (max-width:760px){
  .section{padding:58px 0}
  .split,.split--rev .split__media{grid-template-columns:1fr;order:0}
  .inquiry{grid-template-columns:1fr;gap:28px}
  .stats__grid{grid-template-columns:repeat(2,1fr)}
  .stats__item:nth-child(2){border-right:none}
  .stats__item:nth-child(1),.stats__item:nth-child(2){border-bottom:1px solid var(--line-2)}
  .cards-3,.cards-2,.steps,.reviews,.equip,.value-grid{grid-template-columns:1fr}
  .cta-band{padding:38px 26px}
  .cta-band__in{flex-direction:column;align-items:flex-start}
  .field-row{grid-template-columns:1fr}
  .hero__mini{gap:18px}
  .logos{grid-template-columns:repeat(3,1fr)}
  .steps--line .step::after{display:none}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .cards-4,.icongrid,.industry,.numbers{grid-template-columns:1fr}
  .stats__grid{grid-template-columns:1fr}
  .stats__item{border-right:none;border-bottom:1px solid var(--line-2)}
  .logos{grid-template-columns:repeat(2,1fr)}
  .brand__tag{display:none}
  .hero__float{display:none}
}


/* ===== 科技风增强（配色升级后追加） ===== */
.btn--primary{background:linear-gradient(135deg,#26A8F5,#0B6FB6)}
.btn--primary:hover{background:linear-gradient(135deg,#1A9BEC,#0A5F9E)}
.btn--accent{background:linear-gradient(135deg,#4FE894,#22C46E);color:#053720}
.btn--accent:hover{background:linear-gradient(135deg,#3FE087,#1BB565)}
.hero{position:relative}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,transparent 60%,rgba(10,22,38,.45) 100%),
  radial-gradient(60% 80% at 70% 0%,rgba(65,224,138,.10),transparent 60%)}
.hero .container{position:relative;z-index:3}
.eyebrow{border:1px solid rgba(26,160,240,.16)}
.card:hover{border-color:rgba(26,160,240,.42)}
.hero__badge .dot{box-shadow:0 0 0 4px rgba(65,224,138,.25),0 0 14px rgba(65,224,138,.6)}
.stats__item b i,.num b i{color:#1FB86A}
.hero h1 .y{text-shadow:0 0 26px rgba(65,224,138,.45)}

/* ===== 真实工厂照片背景（banner 蒙版，工厂若隐若现） ===== */
.hero__photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55;z-index:0;filter:saturate(1.08) contrast(1.03)}
.hero::before{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(112deg,rgba(9,20,36,.94) 0%,rgba(11,44,78,.80) 50%,rgba(9,20,36,.5) 100%)}
.hero__bg{z-index:2}
.hero__glow{z-index:2}
.hero .container{z-index:3}
.page-hero__photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.22;z-index:0}
.page-hero::before{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(112deg,rgba(9,20,36,.92) 0%,rgba(11,44,78,.78) 58%,rgba(9,20,36,.55) 100%)}
.page-hero__bg{z-index:2}
.page-hero .container{z-index:3}
.ph-photo,.frame img,.svc__media img,.case__media img,.hero__pcb img,.ind__bg img,.split__media img{width:100%;height:100%;object-fit:cover;display:block}
.wxqr-box{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.wxqr{width:160px;height:160px;border-radius:12px;border:1px solid var(--line);object-fit:contain;background:#fff;flex:0 0 auto;padding:6px}
.wxqr-ph{width:150px;height:150px;border-radius:12px;border:1px dashed var(--brand-100);display:grid;place-items:center;text-align:center;color:var(--muted);font-size:12px;background:var(--brand-050);flex:0 0 auto;padding:10px;line-height:1.5}

/* ===== banner 蒙版微调（工厂更清晰）+ 页尾留白优化 ===== */
.hero::before{background:linear-gradient(108deg,rgba(9,20,36,.90) 0%,rgba(10,30,52,.66) 48%,rgba(9,20,36,.42) 100%)}
.footer{padding-top:74px}
.footer__top{grid-template-columns:1.6fr 1fr 1fr 1.45fr;gap:clamp(30px,4vw,66px);padding-bottom:52px}
.footer__desc{margin:20px 0 22px;line-height:1.85;max-width:340px}
.footer__cert{gap:8px}
.footer__cert span{padding:5px 12px}
.footer h4{margin-bottom:22px}
.footer__links li{margin-bottom:13px}
.footer__contact li{margin-bottom:16px;line-height:1.6}
.footer__social{margin-top:16px}
.footer__bottom{padding:22px 0}
@media(max-width:1024px){.footer__top{grid-template-columns:1fr 1fr;gap:34px 44px}}
@media(max-width:600px){.footer__top{grid-template-columns:1fr;gap:30px}}

/* 营业执照展示图 */
.license-img{width:100%;height:auto;display:block;border-radius:12px;border:1px solid var(--line);box-shadow:var(--shadow)}
.wxqr{cursor:default}