:root{
  --bg:#111112; --card:#1D1D1D; --pill:#28282A; --line:#2E2E30;
  --lime:#ABCD03; --blue:#0064FF; --text:#F2F2F2; --muted:#9A9A9E;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:'DM Sans',system-ui,sans-serif;line-height:1.6}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1280px;margin:0 auto;padding:0 24px}

/* ---------- Nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(17,17,18,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-inner{max-width:1280px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:12px}
.logo img{width:46px;height:46px;border-radius:50%;object-fit:cover}
.logo span{font-size:22px;font-weight:700;letter-spacing:.14em}
.menu{display:flex;gap:8px;margin-left:auto;align-items:center}
.menu>li{list-style:none;position:relative}
.menu a.pill{display:block;padding:9px 18px;border-radius:999px;font-size:14px;color:var(--muted);transition:.25s}
.menu a.pill:hover,.menu a.pill.active{background:var(--pill);color:var(--text)}
.dropdown{position:absolute;top:calc(100% + 10px);left:0;min-width:280px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:10px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.25s}
.menu>li:hover .dropdown{opacity:1;visibility:visible;transform:none}
.dropdown a{display:block;padding:10px 14px;border-radius:10px;font-size:13.5px;color:var(--muted)}
.dropdown a:hover{background:var(--pill);color:var(--lime)}
.nav-cta{padding:10px 22px;border-radius:999px;background:var(--lime);color:#111;font-weight:700;font-size:14px;transition:.25s}
.nav-cta:hover{filter:brightness(1.1)}
.burger{display:none;margin-left:auto;background:none;border:0;color:var(--text);font-size:26px;cursor:pointer}

/* ---------- Floating contact bar ---------- */
.float-bar{position:fixed;right:18px;top:50%;transform:translateY(-50%);z-index:99;display:flex;flex-direction:column;gap:10px}
.float-bar a{width:46px;height:46px;border-radius:50%;background:var(--card);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:18px;transition:.25s}
.float-bar a:hover{background:var(--lime);color:#111;border-color:var(--lime)}

/* ---------- Hero ---------- */
.hero{padding:170px 0 90px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;top:-220px;right:-160px;width:640px;height:640px;border-radius:50%;background:radial-gradient(circle,rgba(171,205,3,.14),transparent 65%);pointer-events:none}
.eyebrow{display:inline-block;padding:7px 16px;border-radius:999px;background:var(--pill);color:var(--lime);font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;margin-bottom:26px}
h1.display{font-size:clamp(36px,4.6vw,58px);font-weight:300;line-height:1.12;max-width:820px}
h1.display b{font-weight:700;color:var(--lime)}
.hero p.lead{margin:24px 0 36px;color:var(--muted);max-width:600px;font-size:17px}
.btn{display:inline-block;padding:14px 32px;border-radius:999px;font-weight:700;font-size:15px;transition:.25s}
.btn-lime{background:var(--lime);color:#111}
.btn-lime:hover{filter:brightness(1.12)}
.btn-ghost{border:1px solid var(--line);color:var(--text);margin-left:12px}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime)}
.hero-stats{display:flex;gap:48px;margin-top:64px;flex-wrap:wrap}
.hero-stats div b{font-size:34px;font-weight:700;color:var(--lime)}
.hero-stats div span{display:block;color:var(--muted);font-size:13.5px;margin-top:4px}

/* ---------- Sections ---------- */
section{padding:84px 0}
h2.sec{font-size:clamp(30px,3.6vw,50px);font-weight:300;line-height:1.15;margin-bottom:14px}
h2.sec b{font-weight:700;color:var(--lime)}
.sec-sub{color:var(--muted);max-width:620px;margin-bottom:48px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:48px}
.sec-head .sec-sub{margin-bottom:0}
.link-more{color:var(--lime);font-size:14.5px;font-weight:700;white-space:nowrap}
.link-more:hover{text-decoration:underline}

/* ---------- Category pills ---------- */
.cat-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:44px}
.cat-row a{padding:10px 20px;border-radius:999px;background:var(--pill);color:var(--muted);font-size:14px;transition:.25s}
.cat-row a:hover{color:var(--lime)}

/* ---------- Product grid ---------- */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.p-card{background:var(--card);border:1px solid var(--line);border-radius:20px;overflow:hidden;transition:.3s;display:flex;flex-direction:column}
.p-card:hover{transform:translateY(-6px);border-color:var(--lime)}
.p-card .ph{background:#fff;aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;padding:24px}
.p-card .ph img{max-height:100%;object-fit:contain}
.p-card .pb{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.p-card .tag{font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--lime)}
.p-card h3{font-size:15.5px;font-weight:500;line-height:1.45}
.p-card .short{color:var(--muted);font-size:13px;margin-top:auto}

/* ---------- Feature cards ---------- */
.f-card{background:var(--card);border:1px solid var(--line);border-radius:20px;overflow:hidden}
.f-card img{aspect-ratio:4/3;object-fit:cover;width:100%}
.f-card .fb{padding:20px 22px 26px}
.f-card h3{font-size:17px;margin-bottom:8px}
.f-card p{color:var(--muted);font-size:13.5px}

/* ---------- About split ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.split .img-wrap{border-radius:24px;overflow:hidden;border:1px solid var(--line)}
.check{list-style:none;margin:26px 0 34px;display:grid;gap:12px}
.check li{padding-left:28px;position:relative;color:var(--muted);font-size:15px}
.check li::before{content:"✓";position:absolute;left:0;color:var(--lime);font-weight:700}

/* ---------- Cert strip ---------- */
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.cert-card{background:#fff;border-radius:16px;padding:14px;transition:.3s}
.cert-card:hover{transform:translateY(-6px)}
.cert-card img{aspect-ratio:3/4;object-fit:contain;width:100%}
.cert-card p{color:#333;text-align:center;font-size:13px;font-weight:600;margin-top:10px;font-family:'DM Sans',sans-serif}

/* ---------- Workshop ---------- */
.ws-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.ws-card{border-radius:18px;overflow:hidden;position:relative;border:1px solid var(--line);background:var(--card)}
.ws-card img{aspect-ratio:4/3;object-fit:cover;width:100%}
.ws-card figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 16px 12px;background:linear-gradient(transparent,rgba(17,17,18,.92));font-size:13px;font-weight:600}
.ws-placeholder{aspect-ratio:4/3;border:2px dashed var(--line);border-radius:18px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;color:var(--muted);font-size:13px;text-align:center;padding:16px;background:rgba(40,40,42,.35)}
.ws-placeholder b{color:var(--lime);font-size:15px}

/* ---------- News ---------- */
.n-card{background:var(--card);border:1px solid var(--line);border-radius:20px;overflow:hidden;transition:.3s}
.n-card:hover{transform:translateY(-6px);border-color:var(--lime)}
.n-card img{aspect-ratio:16/9;object-fit:cover;width:100%}
.n-card .nb{padding:20px 22px 26px}
.n-card time{color:var(--lime);font-size:12.5px;letter-spacing:.08em;text-transform:uppercase}
.n-card h3{font-size:16px;font-weight:500;margin-top:10px;line-height:1.45}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(120deg,var(--card),#161617);border:1px solid var(--line);border-radius:28px;padding:64px 56px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(26px,3vw,40px);font-weight:300}
.cta-band h2 b{font-weight:700;color:var(--lime)}

/* ---------- Page hero (subpages) ---------- */
.page-hero{padding:160px 0 56px;border-bottom:1px solid var(--line)}
.crumb{color:var(--muted);font-size:13.5px;margin-bottom:18px}
.crumb a:hover{color:var(--lime)}

/* ---------- Product detail ---------- */
.pd-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.pd-img{background:#fff;border-radius:24px;padding:36px;position:sticky;top:110px}
.pd-img img{object-fit:contain;aspect-ratio:1/1;width:100%}
.pd-info h1{font-size:clamp(24px,2.6vw,34px);font-weight:500;line-height:1.3;margin-bottom:16px}
.pd-cat{color:var(--lime);font-size:13px;letter-spacing:.1em;text-transform:uppercase;margin-bottom:12px;display:block}
.spec-table{width:100%;border-collapse:collapse;margin:32px 0;font-size:14px}
.spec-table td{padding:12px 16px;border:1px solid var(--line);vertical-align:top}
.spec-table td:first-child{width:38%;color:var(--muted);background:rgba(40,40,42,.4)}
.spec-table tr:hover td{background:rgba(171,205,3,.05)}

/* ---------- Product gallery ---------- */
.pd-thumbs{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.pd-thumb{width:76px;height:76px;object-fit:contain;background:#fff;border-radius:12px;padding:6px;cursor:pointer;border:2px solid transparent;transition:.2s}
.pd-thumb:hover{border-color:var(--muted)}
.pd-thumb.active{border-color:var(--lime)}
.dropdown-wide{min-width:320px;max-height:70vh;overflow:auto}
.dropdown .dd-main{font-weight:700;color:var(--text);margin-top:6px}
.dropdown .dd-main:first-child{margin-top:0}
.dropdown .dd-sub{font-size:12.5px;padding:7px 14px 7px 24px}

/* ---------- Solution scenarios ---------- */
.sol-block{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.sol-visual{border-radius:28px;border:1px solid var(--line);min-height:420px;position:relative;padding:36px;display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden}
.sol-num{position:absolute;top:18px;right:30px;font-size:120px;font-weight:700;color:rgba(255,255,255,.05);line-height:1}
.sol-prods{display:grid;grid-template-columns:1fr 1fr;gap:16px;direction:ltr}
.sol-mini{background:#fff;border-radius:16px;padding:14px;display:flex;flex-direction:column;gap:10px;transition:.3s}
.sol-mini:hover{transform:translateY(-5px)}
.sol-mini img{aspect-ratio:1/1;object-fit:contain;width:100%}
.sol-mini span{font-size:12px;font-weight:600;color:#333;line-height:1.3}
@media(max-width:1024px){.sol-block{grid-template-columns:1fr}.sol-visual{min-height:340px}}


/* ---------- Hero carousel ---------- */
.hero-swiper{height:min(92vh,820px);min-height:560px}
.hero-slide{background-size:cover;background-position:center;display:flex;align-items:center}
.hero-slide-inner{width:100%}
.hero-slide-inner .display{max-width:760px}
.hero-slide-inner .lead{margin:24px 0 36px;color:#d5d5d5;max-width:600px;font-size:17px}
.hero-slide-bottom{display:flex;align-items:flex-end;height:100%;padding-bottom:72px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-swiper .swiper-pagination-bullet{background:#fff;opacity:.45;width:10px;height:10px}
.hero-swiper .swiper-pagination-bullet-active{background:var(--lime);opacity:1}
.hero-swiper .swiper-button-prev,.hero-swiper .swiper-button-next{color:#fff;opacity:.6;transition:.2s}
.hero-swiper .swiper-button-prev:hover,.hero-swiper .swiper-button-next:hover{opacity:1;color:var(--lime)}
.factory-band{padding:88px 0;border-bottom:1px solid var(--line);background:radial-gradient(circle at 85% 20%, rgba(171,205,3,.08), transparent 55%), var(--bg)}
/* ---------- Cert swiper ---------- */
.cert-swiper .swiper-pagination-bullet{background:#fff;opacity:.35}
.cert-swiper .swiper-pagination-bullet-active{background:var(--lime);opacity:1}
/* ---------- Product gallery swiper ---------- */
.pdg-main{border-radius:20px;overflow:hidden}
.pdg-main .swiper-button-prev,.pdg-main .swiper-button-next{color:#111;background:rgba(255,255,255,.85);width:40px;height:40px;border-radius:50%}
.pdg-main .swiper-button-prev::after,.pdg-main .swiper-button-next::after{font-size:16px;font-weight:700}
.pdg-thumbs .swiper-slide{opacity:.55;cursor:pointer;transition:.2s;border:2px solid transparent;border-radius:12px;overflow:hidden;background:#fff}
.pdg-thumbs .swiper-slide img{width:100%;aspect-ratio:1/1;object-fit:contain;padding:6px;display:block}
.pdg-thumbs .swiper-slide-thumb-active{opacity:1;border-color:var(--lime)}
@media(max-width:768px){.hero-swiper{min-height:480px;height:70vh}}

/* ---------- Forms ---------- */
.form{display:grid;gap:16px;background:var(--card);border:1px solid var(--line);border-radius:24px;padding:36px}
.form .row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form input,.form textarea{width:100%;background:var(--pill);border:1px solid var(--line);border-radius:12px;padding:14px 16px;color:var(--text);font-family:inherit;font-size:14.5px}
.form input:focus,.form textarea:focus{outline:2px solid var(--lime);border-color:transparent}
.form button{justify-self:start;padding:14px 36px;border-radius:999px;background:var(--lime);color:#111;font-weight:700;font-size:15px;border:0;cursor:pointer;transition:.25s}
.form button:hover{filter:brightness(1.12)}

/* ---------- Contact ---------- */
.c-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:start}
.c-item{display:flex;gap:16px;padding:22px 0;border-bottom:1px solid var(--line)}
.c-item .ico{width:46px;height:46px;border-radius:50%;background:var(--pill);display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.c-item b{display:block;font-size:15px;margin-bottom:4px}
.c-item span{color:var(--muted);font-size:14px}

/* ---------- Footer ---------- */
footer{border-top:1px solid var(--line);padding:64px 0 32px;margin-top:40px}
.f-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:48px}
.f-grid h4{font-size:14px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:18px}
.f-grid ul{list-style:none;display:grid;gap:10px}
.f-grid a{color:var(--muted);font-size:14px}
.f-grid a:hover{color:var(--lime)}
.f-grid p{color:var(--muted);font-size:14px}
.copyright{border-top:1px solid var(--line);padding-top:26px;color:var(--muted);font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}

/* ---------- Responsive ---------- */
@media(max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .cert-grid{grid-template-columns:repeat(3,1fr)}
  .ws-grid{grid-template-columns:repeat(2,1fr)}
  .split,.pd-grid,.c-grid{grid-template-columns:1fr}
  .pd-img{position:static}
  .f-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:720px){
  .menu{display:none;position:fixed;inset:73px 0 auto 0;background:var(--bg);flex-direction:column;padding:20px;border-bottom:1px solid var(--line)}
  .menu.open{display:flex}
  .burger{display:block}
  .nav-cta{display:none}
  .grid-3,.grid-4,.cert-grid,.ws-grid{grid-template-columns:1fr}
  .form .row2{grid-template-columns:1fr}
  .cta-band{padding:40px 28px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}html{scroll-behavior:auto}}/* ===== 修复1：产品图库不再撑爆布局（白图问题核心修复） ===== */
.pd-grid>*{min-width:0}
.pdg-main,.pdg-thumbs{max-width:100%;overflow:hidden}

/* ===== 修复2：轮播组件加载失败时的兜底——只显示第一张图 ===== */
.swiper:not(.swiper-initialized) .swiper-wrapper{display:block}
.swiper:not(.swiper-initialized) .swiper-slide:not(:first-child){display:none}

/* ===== 修复3：动画库加载失败时的兜底——内容不再隐身 ===== */
[data-aos]{opacity:1 !important;transform:none !important}

/* ===== 修复4：手机版菜单，Products 下拉不再悬浮叠加 ===== */
@media(max-width:720px){
  .menu{max-height:calc(100vh - 73px);overflow-y:auto}
  .dropdown{
    position:static !important;
    opacity:1 !important;
    visibility:visible !important;
    transform:none !important;
    min-width:0;
    background:transparent;
    border:0;
    padding:2px 0 8px 18px;
  }
  .dropdown a{padding:9px 10px;font-size:14px}
}/* ===== 手机端全面优化（最终版）===== */

/* 锚点跳转不被顶部导航挡住 */
[id]{scroll-margin-top:92px}

/* 触屏设备：关闭悬停动效，第一次点击就响应，点击有反馈 */
@media (hover:none){
  .p-card:hover{transform:none}
  .p-card:active{opacity:.85}
}

/* 消除移动端点击延迟，点击时有微弱高亮反馈 */
a,button{touch-action:manipulation;-webkit-tap-highlight-color:rgba(171,205,3,.25)}

/* 手机排版 */
@media (max-width:720px){
  body{-webkit-text-size-adjust:100%}
  input,select,textarea{font-size:16px}           /* 防 iPhone 点输入框时页面自动放大 */
  .p-card h3{font-size:16px;line-height:1.45}
  .menu a.item,.dropdown a{min-height:44px;display:flex;align-items:center}  /* 手指好点 */
  .f-card{grid-column:1 / -1}                     /* 首页特色图改单列大图 */
  .f-card img{width:100%;height:auto;aspect-ratio:16/10;object-fit:cover}
  h1{font-size:clamp(28px,8vw,42px)}              /* 大标题在手机上不爆版 */
  h2{font-size:clamp(22px,6.5vw,30px)}
}