/* ============================================================
   斯维德流体科技 — 现代工业科技风 Design System
   配色：深海军蓝 + 品牌蓝/青 + 中性灰；双语排版；细腻阴影与微动效
   ============================================================ */

/* ===== Design Tokens ===== */
:root{
  --ink:#0a1628;
  --ink-soft:#33455e;
  --muted:#6b7a8d;
  --line:#e7ecf2;
  --line-soft:#eef2f6;
  --brand:#005bac;
  --brand-700:#004a8f;
  --brand-600:#0066c0;
  --accent:#00a6e6;
  --bg:#ffffff;
  --bg-soft:#f4f8fc;
  --bg-deep:#0a1628;
  --radius:16px;
  --radius-sm:12px;
  --shadow-sm:0 2px 10px rgba(15,35,60,.06);
  --shadow-md:0 14px 38px rgba(15,35,60,.10);
  --shadow-lg:0 26px 64px rgba(15,35,60,.16);
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;color:var(--ink-soft);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit;transition:color .3s}
ul,ol{list-style:none}
img{max-width:100%;height:auto;display:block}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 22px}
.text-center{text-align:center}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

/* ===== Header ===== */
.header{position:fixed;top:0;left:0;width:100%;z-index:1000;display:flex;flex-direction:column;transition:all .35s var(--ease)}
.header-main{background-color:rgba(255,255,255,.68);backdrop-filter:blur(26px) saturate(180%);-webkit-backdrop-filter:blur(26px) saturate(180%);border-bottom:1px solid rgba(0,0,0,.06);box-shadow:0 2px 10px rgba(0,0,0,.06);transition:all .35s var(--ease)}
.header.scrolled .header-main{background-color:rgba(255,255,255,.68);backdrop-filter:blur(26px) saturate(180%);-webkit-backdrop-filter:blur(26px) saturate(180%);border-bottom:1px solid rgba(0,0,0,.08);box-shadow:0 10px 30px rgba(0,0,0,.12)}
.header-top-bar{height:40px;background:rgba(8,22,45,.9);border-bottom:1px solid rgba(255,255,255,.08);transition:height .35s var(--ease),opacity .35s var(--ease),border-width .35s var(--ease);overflow:hidden}
.header.scrolled .header-top-bar{height:0;opacity:0;border-bottom-width:0;pointer-events:none}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;height:100%;padding:0 24px}
.header-top-left{display:flex;align-items:center;justify-content:flex-start;gap:22px}
.header-top-right{display:flex;align-items:center;justify-content:flex-end;margin-left:auto}
.header-top-link{display:inline-flex;align-items:center;gap:7px;color:rgba(255,255,255,.72);font-size:13px;font-weight:500;transition:color .25s;text-align:left}
.header-top-link:hover{color:#fff}
.header-top-link svg{width:14px;height:14px;flex-shrink:0}
.header-top-text{color:rgba(255,255,255,.58);font-size:12.5px;font-weight:500;letter-spacing:.5px;text-align:right}
.header-social{display:flex;align-items:center;gap:10px}
.header-social a{width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.72);background:rgba(255,255,255,.08);transition:all .25s var(--ease)}
.header-social a:hover{background:var(--brand-600);color:#fff;transform:translateY(-2px)}
.header-social svg{width:15px;height:15px;fill:currentColor}
.header-main .container{max-width:none;margin:0;padding:0}
.header-inner{display:flex;justify-content:space-between;align-items:center;height:74px;padding:0 24px}

.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo img{height:48px;width:auto;display:block;background:#f3f6fb;border-radius:8px;padding:5px 10px;box-shadow:0 3px 12px rgba(0,0,0,.1)}
.logo-text{display:flex;flex-direction:column;gap:1px;color:#0a1628;padding-left:13px;position:relative;white-space:nowrap}
.logo-text::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);width:1px;height:28px;background:rgba(10,22,40,.15)}
.logo-text strong{font-size:16px;font-weight:700;letter-spacing:.5px;color:var(--ink)}
.logo-text small{font-size:11.5px;color:rgba(10,22,40,.7);font-weight:600;letter-spacing:.2px}
.nav{display:flex;align-items:center;margin-left:auto}
.nav-list{display:flex;gap:4px;justify-content:flex-end}
.header-cta{display:flex;align-items:center;gap:8px;flex-shrink:0;margin-left:14px;background:var(--brand-600);color:#fff;padding:10px 20px;border-radius:6px;font-size:14px;font-weight:600;white-space:nowrap;box-shadow:0 4px 14px rgba(0,91,172,.25);transition:all .3s var(--ease);text-decoration:none}
.header-cta:hover{transform:translateY(-1px);background:#0055a3;box-shadow:0 6px 20px rgba(0,91,172,.35)}
.header-cta svg{width:16px;height:16px;flex-shrink:0}
.nav-list li a{color:rgba(10,22,40,.92);padding:9px 18px;border-radius:8px;font-size:14px;font-weight:600;position:relative;transition:all .3s var(--ease)}
.nav-list li a:hover{color:var(--brand-600);background:rgba(0,91,172,.08)}
.nav-list li a.active{color:var(--brand-600);background:rgba(0,91,172,.08)}
.nav-list li a.active::after{content:'';position:absolute;left:18px;right:18px;bottom:3px;height:2px;background:linear-gradient(90deg,var(--brand-600),var(--accent));border-radius:2px}
.menu-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;background:none;border:none}
.menu-toggle span{display:block;width:24px;height:2px;background:#0a1628;border-radius:1px;transition:all .3s}

/* 语言切换 */
.lang-switch{position:relative;margin-left:14px;flex-shrink:0;z-index:1001}
.lang-trigger{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:24px;padding:8px 18px;color:#0a1628;font-size:14px;font-weight:700;cursor:pointer;transition:all .25s var(--ease);box-shadow:0 4px 14px rgba(0,0,0,.12);font-family:inherit;line-height:1}
.lang-trigger:hover{box-shadow:0 6px 18px rgba(0,0,0,.18);transform:translateY(-1px);border-color:rgba(0,0,0,.12)}
.lang-trigger .lang-current{white-space:nowrap;letter-spacing:.2px}
.lang-trigger .lang-arrow{width:14px;height:14px;transition:transform .25s var(--ease);flex-shrink:0;color:#667287}
.lang-switch.open .lang-arrow{transform:rotate(180deg)}
.lang-menu{position:absolute;top:calc(100% + 10px);right:0;display:flex;flex-direction:column;gap:3px;min-width:132px;background:#fff;border:1px solid rgba(0,0,0,.06);border-radius:16px;padding:8px;box-shadow:0 18px 44px rgba(0,0,0,.16);opacity:0;visibility:hidden;transform:translateY(-8px) scale(.98);transform-origin:top right;transition:all .2s var(--ease)}
.lang-switch.open .lang-menu{opacity:1;visibility:visible;transform:translateY(0) scale(1)}
.lang-menu button{position:relative;width:100%;text-align:left;background:none;border:none;border-radius:12px;padding:10px 14px 10px 34px;font-size:14px;font-weight:600;color:#0a1628;cursor:pointer;transition:all .2s var(--ease);font-family:inherit;line-height:1.2}
.lang-menu button:hover{background:#f3f6fb}
.lang-menu button.active{background:#e9f3ff;color:var(--brand-600)}
.lang-menu button.active::before{content:'';position:absolute;left:12px;top:50%;transform:translateY(-50%);width:8px;height:8px;border-radius:50%;background:var(--brand-600)}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 34px;border-radius:10px;font-size:15px;font-weight:600;transition:all .35s var(--ease);cursor:pointer;border:2px solid transparent;text-align:center}
.btn-primary{background:linear-gradient(135deg,var(--brand-600),var(--brand));color:#fff;border-color:transparent;box-shadow:0 10px 26px rgba(0,91,172,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(0,91,172,.4);filter:brightness(1.05)}
.btn-outline{background:transparent;color:var(--brand);border-color:rgba(0,91,172,.4)}
.btn-outline:hover{background:var(--brand);color:#fff;border-color:var(--brand);transform:translateY(-2px)}
.btn-lg{padding:16px 46px;font-size:16px}
.btn-white{background:#fff;color:var(--ink);border-color:#fff}
.btn-white:hover{background:rgba(255,255,255,.92);transform:translateY(-2px);box-shadow:0 14px 34px rgba(0,0,0,.22)}

/* ===== Hero ===== */
.hero{height:90vh;min-height:560px;position:relative;overflow:hidden;margin-top:114px}
/* 背景图：最底层 z-index:0 */
.hero::before{content:'';position:absolute;inset:0;background:url(../images/hero-bg.jpg) center center / cover no-repeat;z-index:0}
/* 暗色叠加层：z-index:1，位于背景之上、内容之下 */
.hero::after{content:'';position:absolute;inset:0;background:rgba(6,14,28,.30);z-index:1;pointer-events:none}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(120,180,230,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,230,.06) 1px,transparent 1px);background-size:46px 46px;mask-image:radial-gradient(circle at 50% 40%,#000 30%,transparent 78%);-webkit-mask-image:radial-gradient(circle at 50% 40%,#000 30%,transparent 78%);z-index:3;pointer-events:none}
.hero-slider{height:100%;position:relative;z-index:2}
.particle-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:-1;pointer-events:none}
.hero-slide{position:absolute;inset:0;display:none;align-items:center;justify-content:center}
.hero-slide.active{display:flex;animation:heroFade .8s var(--ease) both}
@keyframes heroFade{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.hero-slide::before{content:'';position:absolute;inset:0;background:rgba(6,14,28,.18);z-index:2;pointer-events:none}
.hero-dots{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:5}
.hero-dots .dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.32);cursor:pointer;transition:all .3s;border:none;padding:0}
.hero-dots .dot.active{background:var(--accent);transform:scale(1.3);box-shadow:0 0 0 4px rgba(0,166,230,.2)}
.hero-content{text-align:left;color:#fff;max-width:560px;position:relative;z-index:4;padding:0}
.hero-eyebrow{display:inline-block;font-size:12.5px;letter-spacing:3px;font-weight:600;color:var(--accent);margin-bottom:22px;padding:7px 18px;border:1px solid rgba(0,166,230,.35);border-radius:30px;background:rgba(0,166,230,.08);backdrop-filter:blur(4px)}
.hero-content h1{font-size:clamp(34px,5.4vw,58px);font-weight:800;line-height:1.12;margin-bottom:20px;letter-spacing:1px;text-shadow:0 2px 40px rgba(0,0,0,.3)}
.hero-content p{font-size:16px;margin-bottom:30px;opacity:.88;line-height:1.8;max-width:520px}
.hero-actions{display:flex;gap:16px;justify-content:flex-start;flex-wrap:wrap}
.hero-inner{width:100%;max-width:1200px;margin:0 auto;padding:0 22px 110px;display:grid;grid-template-columns:1.02fr .98fr;gap:46px;align-items:center}
.hero-visual{position:relative;z-index:3}
.hv-main{position:relative;background:linear-gradient(135deg,rgba(255,255,255,.06),rgba(0,166,230,.1));border:1px solid rgba(255,255,255,.14);border-radius:18px;padding:20px;display:flex;align-items:center;justify-content:center;box-shadow:0 30px 70px rgba(0,0,0,.4);backdrop-filter:blur(4px)}
.hv-main img{max-width:100%;max-height:262px;object-fit:contain;filter:drop-shadow(0 18px 38px rgba(0,0,0,.45))}
.hv-tag{position:absolute;left:15px;bottom:15px;background:rgba(10,22,40,.72);color:#fff;font-size:12px;padding:5px 13px;border-radius:20px;backdrop-filter:blur(4px);letter-spacing:.5px}
.hv-row{display:flex;gap:12px;margin-top:14px}
.hv-row img{flex:1;height:72px;object-fit:contain;padding:8px;background:linear-gradient(135deg,rgba(255,255,255,.05),rgba(0,166,230,.07));border:1px solid rgba(255,255,255,.12);border-radius:12px;transition:all .35s var(--ease)}
.hv-row img:hover{transform:translateY(-4px);border-color:rgba(0,166,230,.5);box-shadow:0 12px 26px rgba(0,0,0,.32)}

/* 逐图亮度归一化：slide-b（液压马达 pd2f/hst/bk/pd6vm）原图纯白底+高光轴头，观感明显偏亮 */
/* 压低至与 slide-a（变量柱塞泵 pd11v/pd10v/pdigp/pd4vg）灰蓝底的感知亮度一致 */
.hero-slide.slide-b .hv-main img{filter:brightness(.88) contrast(.96) drop-shadow(0 18px 38px rgba(0,0,0,.45))}
.hero-slide.slide-b .hv-row img{filter:brightness(.90)}
.hero-stats{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);z-index:3;display:flex;gap:0;padding:16px 30px;background:rgba(10,22,40,.5);border:1px solid rgba(255,255,255,.08);border-radius:14px;backdrop-filter:blur(10px)}
.hero-stats .hs{text-align:center;padding:0 28px;position:relative}
.hero-stats .hs+ .hs::before{content:'';position:absolute;left:0;top:8px;bottom:8px;width:1px;background:rgba(255,255,255,.14)}
.hero-stats b{display:block;font-size:26px;font-weight:800;color:#fff;line-height:1.1}
.hero-stats span{font-size:12.5px;color:rgba(255,255,255,.62);letter-spacing:.5px}
.hero-deco{position:absolute;border-radius:50%;filter:blur(70px);z-index:1;opacity:.55;pointer-events:none}
.hero-deco-1{width:460px;height:460px;background:var(--accent);top:-140px;left:-120px;opacity:.42}
.hero-deco-2{width:380px;height:380px;background:var(--brand);bottom:-140px;right:-90px;opacity:.5}
.hero-deco-3{width:240px;height:240px;background:#0096d6;top:30%;right:20%;opacity:.3}
.hero-deco-4{width:200px;height:200px;background:#0066aa;bottom:24%;left:16%;opacity:.28}

/* ===== Sections ===== */
.section{padding:64px 0}
.section-header{text-align:center;margin-bottom:40px}
/* 首页「关于斯维德」「应用案例」两个白底区，相对其它板块更紧凑 */
.bg-light.section{padding:40px 0}
.bg-light .section-header{margin-bottom:28px}
.section-eyebrow{display:inline-block;font-size:12px;letter-spacing:4px;font-weight:600;color:var(--brand);margin-bottom:14px;text-transform:uppercase}
.section-header h2{font-size:clamp(26px,3.4vw,34px);font-weight:800;color:var(--ink);margin-bottom:14px;letter-spacing:.5px}
.section-line{width:54px;height:3px;background:linear-gradient(90deg,var(--brand-600),var(--accent));margin:0 auto 14px;border-radius:2px}
.section-header p{color:var(--muted);font-size:15px;max-width:560px;margin:0 auto;line-height:1.85}
.bg-light{background:var(--bg-soft)}
.section-title-lg{font-size:30px;font-weight:800;color:var(--ink);margin-bottom:20px}

/* ===== 应用领域 (home) — 精简信息块：不可点击、无图 ===== */
/* ===== 应用领域 — 图文卡片 ===== */
.fields-section{padding:50px 0 60px}
.fields-section .section-header{margin-bottom:36px}
.fields-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.field-card{background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden;transition:transform .35s cubic-bezier(.16,1,.3,1),box-shadow .35s var(--ease);display:flex;flex-direction:column}
.field-card:hover{transform:translateY(-5px);box-shadow:0 12px 32px rgba(30,64,110,.12)}

/* 图片区域 */
.field-img-wrap{position:relative;overflow:hidden;aspect-ratio:16/9;background:#eef2f7}
.field-img-wrap img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s cubic-bezier(.16,1,.3,1)}
.field-card:hover .field-img-wrap img{transform:scale(1.05)}
/* 图片底部渐变 + 标题叠加 */
.field-img-overlay{position:absolute;left:0;right:0;bottom:0;padding:14px 14px 10px;background:linear-gradient(to top,rgba(10,22,40,.72) 0%,rgba(10,22,40,.28) 60%,transparent 100%);color:#fff;pointer-events:none}
.field-img-overlay span{font-size:14px;font-weight:700;letter-spacing:.3px}

/* 文字区域 */
.field-body{padding:14px 14px 16px}
.field-body h3{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:5px;letter-spacing:.2px}
.field-body p{font-size:12.5px;color:var(--muted);line-height:1.65;margin:0}

/* ===== Product cards (catalog) ===== */
.products-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.prod-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s var(--ease);display:flex;flex-direction:column;box-shadow:var(--shadow-sm);contain:layout style paint}
.prod-card::before{content:'';position:absolute;inset:0;border-radius:var(--radius);padding:1.5px;background:linear-gradient(135deg,rgba(0,166,230,.65),rgba(0,91,172,0) 58%);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .45s var(--ease);pointer-events:none;z-index:3}
.prod-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:transparent}
.prod-card:hover::before{opacity:1}
.prod-card .p-card-main{display:flex;flex-direction:column;flex:1;color:inherit;text-decoration:none;outline:none}
.prod-card .p-thumb{height:230px;overflow:hidden;background:radial-gradient(120% 120% at 50% 0%,#103257,#0a1628);position:relative}
.prod-card .p-thumb::after{content:'';position:absolute;inset:0;background:radial-gradient(circle at 50% 120%,rgba(0,166,230,.22),transparent 60%);pointer-events:none}
.prod-card .p-thumb img{width:100%;height:100%;object-fit:contain;padding:20px;transition:transform .6s var(--ease)}
.prod-card:hover .p-thumb img{transform:scale(1.07)}
.prod-card .p-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1}
.prod-card h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:10px;line-height:1.45}
.prod-card .p-summary{font-size:13.5px;color:var(--muted);line-height:1.8;margin-bottom:16px;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.prod-card .p-link{color:var(--brand);font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.prod-card .p-link span{transition:transform .3s var(--ease)}
.prod-card:hover .p-link span{transform:translateX(5px)}
/* 错落入场（与 IntersectionObserver .visible 配合） */
#productList .prod-card.fade-in,#homeProducts .prod-card.fade-in{transition-delay:calc(var(--i,0)*55ms)}
@media(max-width:1024px){.products-grid{grid-template-columns:repeat(2,1fr);gap:24px}}
@media(max-width:768px){.products-grid{grid-template-columns:1fr;gap:22px}.prod-card .p-thumb{height:200px}.filter-controls{flex-direction:column;align-items:stretch}.filter-search{max-width:none;min-width:auto}}

/* ===== Filter bar / toolbar ===== */
/* 产品列表页：结果计数与卡片网格之间的间距收紧 */
#productList.page-content{padding-top:18px;padding-bottom:68px}
.filter-toolbar{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px;box-shadow:var(--shadow-sm);transition:box-shadow .3s var(--ease)}
.filter-toolbar:hover{box-shadow:var(--shadow-md)}
.filter-cats{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-start;align-items:center}
.filter-cats button{padding:10px 22px;border:1px solid #dfe5ec;background:#fff;border-radius:30px;font-size:14px;color:#55636f;cursor:pointer;transition:all .28s var(--ease);font-weight:500;white-space:nowrap}
.filter-cats button:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.filter-cats button.active{background:linear-gradient(135deg,var(--brand-600),var(--brand));border-color:transparent;color:#fff;box-shadow:0 8px 20px rgba(0,91,172,.25)}
.filter-controls{display:flex;gap:16px;justify-content:flex-end;align-items:center;flex-wrap:nowrap;flex:1;min-width:280px}
.filter-search{position:relative;display:flex;align-items:center;flex:1;max-width:340px;min-width:200px}
.filter-search svg{position:absolute;left:14px;width:18px;height:18px;color:#8b9aac;pointer-events:none}
.filter-search input{width:100%;padding:12px 16px 12px 42px;border:1px solid #dfe5ec;border-radius:30px;font-size:14px;background:#fff;transition:all .28s var(--ease);outline:none;color:var(--ink)}
.filter-search input:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(0,166,230,.12)}
.filter-sort{display:flex;align-items:center;gap:8px;flex-shrink:0}
.filter-sort label{font-size:13px;color:#6d7c8b;font-weight:500}
.filter-sort select{padding:11px 34px 11px 16px;border:1px solid #dfe5ec;border-radius:30px;font-size:14px;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none' stroke='%2355636f' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M2 4.5L6 8.5L10 4.5'/%3E%3C/svg%3E") no-repeat right 14px center;color:var(--ink);cursor:pointer;outline:none;appearance:none;-webkit-appearance:none;transition:all .28s var(--ease)}
.filter-sort select:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(0,166,230,.12)}
.filter-bar{margin-bottom:18px}
.filter-meta{font-size:13px;color:#7a8a99;margin-top:10px;letter-spacing:.3px;padding-left:4px}
.empty-cat{grid-column:1/-1;text-align:center;color:#7a8a99;padding:60px 20px;background:#fff;border:1px dashed var(--line);border-radius:var(--radius);font-size:15px}
@media(max-width:900px){
  .filter-toolbar{gap:16px;padding:18px}
  .filter-controls{min-width:100%;justify-content:space-between}
  .filter-search{max-width:none;min-width:0}
}
@media(max-width:640px){
  .filter-cats{width:100%;justify-content:flex-start}
  .filter-controls{flex-direction:column;align-items:stretch;gap:12px}
  .filter-search{max-width:none;min-width:auto}
}

/* ===== Breadcrumb ===== */
.breadcrumb{font-size:13px;color:#9aa6b2;padding:26px 0 0}
.breadcrumb a{color:var(--brand)}
.breadcrumb span{margin:0 8px;color:#ccd4dc}

/* ===== Product detail ===== */
.pd-wrap{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:start;padding:32px 0 12px}
.pd-gallery .pd-main{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:linear-gradient(135deg,#0a1628,#103257);aspect-ratio:4/3}
.pd-gallery .pd-main img{width:100%;height:100%;object-fit:contain;padding:20px}
.pd-gallery .pd-thumbs{display:flex;gap:12px;margin-top:14px}
.pd-gallery .pd-thumbs img{width:84px;height:84px;object-fit:contain;padding:6px;border-radius:10px;border:2px solid var(--line);cursor:pointer;transition:all .3s var(--ease);background:linear-gradient(135deg,#0a1628,#103257)}
.pd-gallery .pd-thumbs img.active,.pd-gallery .pd-thumbs img:hover{border-color:var(--brand)}
.pd-info h1{font-size:30px;font-weight:800;color:var(--ink);margin-bottom:12px;line-height:1.3}
.pd-info .pd-cat{display:inline-block;background:#eaf2ff;color:var(--brand);font-size:13px;font-weight:600;padding:6px 15px;border-radius:20px;margin-bottom:18px}
.pd-info .pd-summary{font-size:15px;color:var(--ink-soft);line-height:2;margin-bottom:24px;padding:18px 20px;background:var(--bg-soft);border-radius:12px;border-left:3px solid var(--brand)}
.spec-table{width:100%;border-collapse:collapse;margin-bottom:22px;overflow:hidden;border-radius:12px;box-shadow:var(--shadow-sm)}
.spec-table th,.spec-table td{border:1px solid #e8ecf0;padding:13px 16px;font-size:14px;line-height:1.6}
.spec-table th{background:var(--bg-soft);color:var(--ink);width:36%;text-align:left;font-weight:600}
.spec-table td{color:var(--ink-soft)}
.pd-tags{display:flex;gap:9px;flex-wrap:wrap}
.pd-tags .tag{background:#eaf2ff;color:var(--brand);font-size:13px;padding:6px 16px;border-radius:20px;font-weight:500}
.pd-block{padding:58px 0;border-top:1px solid var(--line);margin-top:34px}
.pd-block h2{font-size:24px;font-weight:800;color:var(--ink);margin-bottom:22px;padding-left:15px;border-left:3px solid var(--brand)}
.pd-block p{font-size:15px;color:var(--ink-soft);line-height:2.1;margin-bottom:16px;text-indent:2em}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}

/* ===== News ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
/* 新闻分类状态栏 */
.news-filter{position:sticky;top:0;z-index:30;display:flex;flex-wrap:wrap;gap:10px;padding:14px 0;margin-bottom:34px;background:rgba(255,255,255,.92);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid rgba(0,51,102,.08)}
.news-filter .nf-btn{appearance:none;border:1px solid rgba(0,51,102,.18);background:#fff;color:#0a1628;font-size:14px;font-weight:600;font-family:inherit;padding:9px 20px;border-radius:999px;cursor:pointer;transition:all .25s var(--ease)}
.news-filter .nf-btn:hover{border-color:#005bac;color:#005bac;transform:translateY(-1px)}
.news-filter .nf-btn.active{background:linear-gradient(135deg,#003366,#005bac);color:#fff;border-color:transparent;box-shadow:0 6px 18px rgba(0,91,172,.28)}
.news-module{margin-bottom:54px}
.news-module:last-child{margin-bottom:0}
.module-head{display:flex;align-items:baseline;gap:14px;margin-bottom:24px;padding-left:16px;position:relative}
.module-head::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:3px;background:linear-gradient(180deg,#005bac,#003366)}
.module-head h2{font-size:clamp(20px,2.4vw,26px);font-weight:800;color:var(--ink);letter-spacing:.5px}
.module-head .module-en{font-size:12px;color:var(--muted);letter-spacing:1.5px;text-transform:uppercase}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:all .4s var(--ease);display:flex;flex-direction:column;box-shadow:var(--shadow-sm)}
.news-card:hover{transform:translateY(-7px);box-shadow:var(--shadow-md);border-color:#cfe0f0}
.news-card .n-cover{height:204px;overflow:hidden;background:linear-gradient(135deg,#0a1628,#103257)}
.news-card .n-cover img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.news-card:hover .n-cover img{transform:scale(1.06)}
.news-card .n-body{padding:24px 26px 28px;display:flex;flex-direction:column;flex:1}
.news-card .n-meta{font-size:12px;color:#9aa6b2;margin-bottom:10px}
.news-card .n-meta .n-cat{color:var(--brand);font-weight:600;margin-right:10px}
.news-card h3{font-size:18px;font-weight:700;color:var(--ink);margin-bottom:12px;line-height:1.5;flex:1}
.news-card .n-summary{font-size:13.5px;color:var(--muted);line-height:1.8;margin-bottom:16px}
.news-card .n-link{color:var(--brand);font-size:13px;font-weight:600}
.news-detail{max-width:820px;margin:0 auto}
.news-detail .n-cover-full{width:100%;border-radius:var(--radius);margin:10px 0 30px;background:linear-gradient(135deg,#0a1628,#103257)}
.news-detail .n-meta{font-size:13px;color:#9aa6b2;margin-bottom:14px}
.news-detail .n-meta .n-cat{color:var(--brand);font-weight:600;margin-right:12px}
.news-detail h1{font-size:32px;font-weight:800;color:var(--ink);line-height:1.35;margin-bottom:20px}
.news-detail p{font-size:15.5px;color:var(--ink-soft);line-height:2.2;margin-bottom:18px;text-indent:2em}

/* ===== About ===== */
.about-content{display:grid;grid-template-columns:1.1fr 1fr;gap:60px;align-items:center;margin-bottom:50px}
.about-text h3{font-size:32px;font-weight:800;color:var(--ink);line-height:1.25;margin-bottom:22px;letter-spacing:-.5px}
.about-text h3 br{display:block}
.about-badge{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid #d4e4f7;color:var(--brand);font-size:13px;font-weight:600;padding:8px 16px;border-radius:30px;margin-bottom:18px;box-shadow:0 2px 10px rgba(0,91,172,.06)}
.about-badge svg{width:15px;height:15px;color:var(--brand)}
.about-text p{color:var(--ink-soft);margin-bottom:16px;font-size:15px;line-height:1.85;text-indent:0}
.about-actions{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap}
/* ===== 关于页：工厂大图 + 数据浮层（统一视觉锚点） ===== */
.about-hero{position:relative;border-radius:14px;overflow:hidden;background:#e8eef4;aspect-ratio:4/3.4;min-height:340px}
.about-hero>img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s cubic-bezier(.16,1,.3,1)}
.about-hero:hover>img{transform:scale(1.03)}
/* 2×2 数据浮层网格 — 定位在图片下半部分 */
.hero-overlay-grid{position:absolute;left:12px;right:12px;bottom:48px;display:grid;grid-template-columns:1fr 1fr;gap:8px}
.hero-stat{background:rgba(255,255,255,.72);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:8px;padding:11px 10px;text-align:center;border:1px solid rgba(255,255,255,.5);transition:transform .3s var(--ease),background .3s var(--ease)}
.hero-stat:hover{transform:translateY(-2px);background:rgba(255,255,255,.88)}
.hero-num{display:block;font-size:20px;font-weight:800;color:var(--brand);line-height:1;font-family:'DIN Alternate','Helvetica Neue',sans-serif;letter-spacing:-.5px}
.hero-num.accent{color:var(--accent)}
.hero-u{font-size:11px;font-weight:600;margin-left:1px}
.hero-key{display:block;font-size:10.5px;color:#5a6b7d;margin-top:2px;font-weight:500}
/* 底部标签条 */
.hero-overlay-tag{position:absolute;left:0;right:0;bottom:0;padding:10px 16px;text-align:center;background:linear-gradient(to top,rgba(10,22,40,.88) 0%,rgba(10,22,40,.45) 55%,transparent 100%)}
.hero-overlay-tag span{display:block;font-size:9.5px;letter-spacing:1.8px;color:rgba(255,255,255,.7);text-transform:uppercase}
.hero-overlay-tag strong{display:block;font-size:13px;font-weight:700;color:#fff;margin-top:1px}
.about-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.metric{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:32px 24px;text-align:center;transition:all .4s var(--ease);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;align-items:center}
.metric:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:#cfe0f0}
.metric-icon{width:58px;height:58px;background:linear-gradient(135deg,#eaf2ff,#dceaff);border-radius:16px;display:flex;align-items:center;justify-content:center;color:var(--brand);margin-bottom:20px}
.metric-icon svg{width:26px;height:26px}
.metric-main{margin-bottom:12px}
.metric-main strong{display:block;font-size:42px;font-weight:800;color:var(--brand);line-height:1;letter-spacing:-1px}
.metric-main span{display:block;font-size:15px;font-weight:700;color:var(--ink);margin-top:6px}
.metric p{margin:0;font-size:13.5px;color:var(--muted);line-height:1.7;max-width:220px}
@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}

/* ===== Solutions ===== */
.solutions-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.solution-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;transition:all .4s var(--ease);box-shadow:var(--shadow-sm)}
.solution-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:#cfe0f0}
.solution-img{height:155px;display:flex;align-items:center;justify-content:center;font-size:44px}
.solution-info{padding:22px 20px 24px}
.solution-info h3{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:6px}
.solution-info p{font-size:13px;color:var(--muted);line-height:1.7}

/* ===== CTA ===== */
.cta-section{background:linear-gradient(135deg,#0a1628 0%,#06223f 100%);text-align:center;padding:48px 20px;position:relative;overflow:hidden}
.cta-section::before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(120,180,230,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,230,.05) 1px,transparent 1px);background-size:48px 48px;mask-image:radial-gradient(circle at 50% 50%,#000 20%,transparent 75%);-webkit-mask-image:radial-gradient(circle at 50% 50%,#000 20%,transparent 75%)}
.cta-section::after{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--brand-600),var(--accent))}
.cta-content{position:relative;z-index:1}
.cta-content h2{font-size:34px;font-weight:800;color:#fff;margin-bottom:10px;letter-spacing:1px}
.cta-content p{font-size:17px;color:rgba(255,255,255,.72);margin-bottom:20px}

/* ===== Cases（配套运用案例） ===== */
.cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
/* 首页应用案例：横向滚动 + 自动播放 */
/* 无缝横向跑马灯：viewport 裁切 + 内层 track 用 transform 平移（GPU 合成，丝滑） */
#caseGrid{overflow:hidden;position:relative;padding-bottom:14px;contain:layout paint}
#caseGrid .case-track{display:flex;width:max-content;will-change:transform;animation:caseMarquee 30s linear infinite}
#caseGrid:hover .case-track{animation-play-state:paused}
/* 用 margin-right 而非 gap：保证 -50% 正好是「一套」宽度，回环无错位 */
#caseGrid .case-card{flex:0 0 clamp(260px,30vw,340px);margin-right:24px}
@keyframes caseMarquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media (prefers-reduced-motion: reduce){#caseGrid .case-track{animation:none}}
.case-card{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;box-shadow:var(--shadow-sm);transition:all .45s var(--ease);background:#f5f7fa}
.case-card img{width:100%;height:100%;object-fit:cover;object-position:center;transition:transform .6s var(--ease)}
.case-card:hover{box-shadow:var(--shadow-md);transform:translateY(-5px)}
.case-card .case-mask{position:absolute;left:0;right:0;bottom:0;padding:26px 22px 20px;background:linear-gradient(to top,rgba(10,22,40,.95) 0%,rgba(10,22,40,.55) 55%,transparent 100%);color:#fff}
.case-card .case-mask h3{font-size:17px;font-weight:700;margin-bottom:5px;letter-spacing:.5px}
.case-card .case-mask p{font-size:13px;color:#cfe0f2;line-height:1.6;opacity:.92}

/* ===== Footer ===== */
.footer{position:relative;background:#0a0e14;color:rgba(255,255,255,.6);border-top:4px solid var(--brand-600);overflow:hidden}
.footer-earth-bg{position:absolute;inset:0;background:url(../images/footer/earth.jpg?v=74) no-repeat center bottom;background-size:cover;opacity:.5;pointer-events:none;z-index:0;transform-origin:center bottom;animation:footer-earth-float 24s ease-in-out infinite}
.footer-earth-bg::after{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at center 75%,rgba(0,120,200,.16),transparent 60%);opacity:.6;animation:footer-earth-glow 14s ease-in-out infinite alternate}
@keyframes footer-earth-float{0%,100%{transform:scale(1) translate(0,0)}50%{transform:scale(1.05) translate(-1%,-.5%)}}
@keyframes footer-earth-glow{0%{opacity:.4}100%{opacity:.9}}
@media (prefers-reduced-motion:reduce){.footer-earth-bg,.footer-earth-bg::after{animation:none}}
.footer .container{position:relative;z-index:1}
.footer-main{display:grid;grid-template-columns:1.1fr 1.9fr;gap:clamp(30px,5vw,70px);padding:70px 0 55px}
.footer-brand{max-width:360px}
.footer-logo{display:inline-flex;flex-direction:column;color:#fff;text-decoration:none;margin-bottom:8px}
.footer-logo strong{font-size:28px;font-weight:800;letter-spacing:1px;line-height:1.1}
.footer-logo span{font-size:13px;font-weight:500;color:rgba(255,255,255,.55);letter-spacing:1px;margin-top:6px}
.footer-contact-info{margin:28px 0}
.footer-email{display:block;font-size:17px;color:var(--brand-400);margin-bottom:14px;text-decoration:none;transition:color .3s;font-weight:500}
.footer-email:hover{color:#fff}
.footer-contact-info p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.55);margin:0}
.footer-social{display:flex;gap:12px;margin:22px 0}
.footer-social a{width:38px;height:38px;border-radius:4px;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;color:#fff;transition:all .3s}
.footer-social a:hover{background:var(--brand-600);transform:translateY(-2px);color:#fff}
.footer-subscribe{display:flex;max-width:320px;margin-top:18px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:4px;overflow:hidden}
.footer-subscribe input{flex:1;background:transparent;border:none;padding:0 14px;color:#fff;font-size:14px;height:46px;min-width:0}
.footer-subscribe input::placeholder{color:rgba(255,255,255,.35)}
.footer-subscribe button{width:48px;background:var(--brand-600);border:none;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .3s;flex-shrink:0}
.footer-subscribe button:hover{background:var(--brand-700)}
.footer-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(24px,3vw,48px)}
.footer-nav-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:22px;letter-spacing:.5px}
.footer-nav-col ul li{margin-bottom:12px}
.footer-nav-col ul li a{color:rgba(255,255,255,.55);font-size:14px;text-decoration:none;transition:all .25s;display:inline-flex;align-items:center}
.footer-nav-col ul li a::before{content:'';display:inline-block;width:0;height:1px;background:var(--brand-400);transition:width .25s,margin-right .25s;margin-right:0;flex-shrink:0}
.footer-nav-col ul li a:hover{color:#fff}
.footer-nav-col ul li a:hover::before{width:12px;margin-right:8px}
.footer-bottom{position:relative;z-index:1;display:flex;justify-content:space-between;align-items:center;padding:22px 0;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:rgba(255,255,255,.35)}
.footer-bottom a{color:rgba(255,255,255,.35);text-decoration:none;transition:color .3s}
.footer-bottom a:hover{color:var(--brand-400)}
@media (max-width:1024px){
.footer-main{grid-template-columns:1fr;gap:48px;padding:55px 0 45px}
.footer-brand{max-width:100%}
.footer-nav{grid-template-columns:repeat(3,1fr)}
.footer-subscribe{max-width:360px}
}
@media (max-width:768px){
.footer{padding-bottom:env(safe-area-inset-bottom)}
.footer-main{padding:45px 0 35px}
.footer-nav{grid-template-columns:repeat(2,1fr);gap:28px}
.footer-bottom{flex-direction:column;gap:8px;text-align:center}
.footer-logo strong{font-size:24px}
}
@media (max-width:480px){
.footer-nav{grid-template-columns:1fr}
.footer-subscribe{width:100%}
}

/* ===== Page Banner ===== */
.page-banner{height:300px;display:flex;align-items:center;justify-content:center;text-align:center;color:#fff;margin-top:114px;position:relative;overflow:hidden;background:radial-gradient(120% 120% at 80% 0%,#0f2a4a 0%,transparent 55%),linear-gradient(135deg,#0a1628 0%,#0c2342 60%,#0a2a52 100%)}
.page-banner .banner-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(120,180,230,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,230,.06) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(circle at 50% 40%,#000 25%,transparent 75%);-webkit-mask-image:radial-gradient(circle at 50% 40%,#000 25%,transparent 75%);z-index:1}
.page-banner::before{content:'';position:absolute;inset:0;background:rgba(6,14,28,.34);z-index:2}
.page-banner > div{position:relative;z-index:3}
.page-banner .banner-eyebrow{display:inline-block;font-size:12px;letter-spacing:3px;font-weight:600;color:var(--accent);margin-bottom:14px}
.page-banner h1{font-size:clamp(28px,4vw,40px);font-weight:800;margin-bottom:8px;letter-spacing:1px}
.page-banner p{font-size:15px;opacity:.82}
.page-banner .banner-deco{position:absolute;border-radius:50%;filter:blur(55px);opacity:.45;z-index:1;pointer-events:none}
.banner-deco-1{width:300px;height:300px;background:var(--accent);top:-110px;left:-80px;opacity:.4}
.banner-deco-2{width:240px;height:240px;background:var(--brand);bottom:-90px;right:-60px;opacity:.42}
.banner-deco-3{width:170px;height:170px;background:#0096d6;top:35%;right:22%;opacity:.26}
.banner-deco-4{width:130px;height:130px;background:#0066aa;bottom:28%;left:14%;opacity:.24}

/* ===== About / Contact page ===== */
.page-content{padding:68px 0}
.about-full-text p{font-size:15px;color:var(--ink-soft);line-height:2.1;margin-bottom:18px;text-indent:2em}
.about-full-text h3{font-size:22px;color:var(--ink);margin:36px 0 16px;padding-left:15px;border-left:3px solid var(--brand)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-info-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:38px 32px;box-shadow:var(--shadow-sm)}
.contact-info-card h3{font-size:18px;color:var(--ink);margin-bottom:22px;font-weight:700}
.contact-info-card .info-item{display:flex;gap:14px;margin-bottom:18px;align-items:flex-start}
.contact-info-card .info-item .icon{width:42px;height:42px;background:linear-gradient(135deg,#eaf2ff,#dceaff);border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.contact-info-card .info-item .icon svg{width:18px;height:18px;color:var(--brand)}
.contact-info-card .info-item h4{font-size:14px;color:var(--ink);margin-bottom:2px;font-weight:600}
.contact-info-card .info-item p{font-size:14px;color:var(--muted)}
.form-group{margin-bottom:16px}
.form-group input,.form-group textarea{width:100%;padding:12px 15px;border:1px solid #e0e4e8;border-radius:8px;font-size:14px;background:#fafbfd;transition:all .3s var(--ease);outline:none;font-family:inherit}
.form-group input:focus,.form-group textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,91,172,.12);background:#fff}

/* ===== Animations ===== */
.fade-in{opacity:0;transform:translateY(28px);transition:all .7s var(--ease)}
.fade-in.visible{opacity:1;transform:translateY(0)}

/* 仅透明度渐显（与视差 transform 不冲突） */
.fade-op{opacity:0;transition:opacity .8s var(--ease)}
.fade-op.visible{opacity:1}

/* 视差装饰光斑 */
.sec-blob{position:absolute;border-radius:50%;filter:blur(60px);pointer-events:none;z-index:0}
.bg-light{position:relative;overflow:hidden;isolation:isolate}
.bg-light .container{position:relative;z-index:1}
.about-blob-1{width:320px;height:320px;background:var(--brand-600);top:-90px;left:-70px;opacity:.10}
.about-blob-2{width:260px;height:260px;background:var(--accent);bottom:-80px;right:-60px;opacity:.12}
.cta-blob{width:300px;height:300px;background:var(--accent);top:8%;right:-90px;opacity:.18}

/* 网格卡片错峰进入 */
#homeProducts .prod-card:nth-child(2),#caseGrid .case-card:nth-child(2),#homeNews .news-card:nth-child(2),#fieldsGrid .field-card:nth-child(2){transition-delay:.06s}
#homeProducts .prod-card:nth-child(3),#caseGrid .case-card:nth-child(3),#homeNews .news-card:nth-child(3),#fieldsGrid .field-card:nth-child(3){transition-delay:.12s}
#homeProducts .prod-card:nth-child(4),#caseGrid .case-card:nth-child(4),#homeNews .news-card:nth-child(4),#fieldsGrid .field-card:nth-child(4){transition-delay:.18s}
#homeProducts .prod-card:nth-child(5),#caseGrid .case-card:nth-child(5),#homeNews .news-card:nth-child(5),#fieldsGrid .field-card:nth-child(5){transition-delay:.24s}
#homeProducts .prod-card:nth-child(6),#caseGrid .case-card:nth-child(6),#homeNews .news-card:nth-child(6),#fieldsGrid .field-card:nth-child(6){transition-delay:.30s}
#homeProducts .prod-card:nth-child(7),#caseGrid .case-card:nth-child(7),#homeNews .news-card:nth-child(7),#fieldsGrid .field-card:nth-child(7){transition-delay:.36s}
#homeProducts .prod-card:nth-child(8),#caseGrid .case-card:nth-child(8),#homeNews .news-card:nth-child(8),#fieldsGrid .field-card:nth-child(8){transition-delay:.42s}

/* ===== English overrides ===== */
html:lang(en) .hero-content h1{font-size:clamp(30px,4.6vw,50px);line-height:1.15;letter-spacing:0}
html:lang(en) .hero-content p{font-size:15px;line-height:1.65;max-width:500px}
html:lang(en) .hero-eyebrow{font-size:12px;padding:6px 14px}
html:lang(en) .btn-lg{padding:14px 34px;font-size:15px}
html:lang(en) .hero-stats{padding:12px 22px}
html:lang(en) .hero-stats .hs{padding:0 18px}
html:lang(en) .hero-stats b{font-size:24px}
html:lang(en) .hero-stats span{font-size:11.5px;letter-spacing:0}

/* ===== Responsive ===== */
@media(max-width:1024px){
  .products-grid,.news-grid,.related-grid,.cases-grid{grid-template-columns:repeat(2,1fr)}
  .solutions-grid{grid-template-columns:repeat(2,1fr)}
  .fields-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:900px){
  .about-content{grid-template-columns:1fr;gap:35px}
  .about-text h3{font-size:28px}
  .about-hero{aspect-ratio:4/3.6;min-height:300px}
  .hero-overlay-grid{left:12px;right:12px;bottom:48px;gap:8px}
  .hero-stat{padding:12px 10px}
  .hero-num{font-size:19px}
  .about-metrics{grid-template-columns:repeat(3,1fr);gap:14px}
  .metric{padding:20px 14px}
  .metric-icon{width:48px;height:48px;margin-bottom:14px}
  .metric-icon svg{width:22px;height:22px}
  .metric-main strong{font-size:30px}
  .metric-main span{font-size:13px}
  .metric p{font-size:12px;line-height:1.6;max-width:none}
  .pd-wrap{grid-template-columns:1fr;gap:30px}
  .hero-inner{grid-template-columns:1fr;gap:34px;padding:0 22px 100px;text-align:center}
  .hero-content{text-align:center;max-width:640px;margin:0 auto}
  .hero-content p{margin-left:auto;margin-right:auto}
  .hero-actions{justify-content:center}
  .hero-visual{max-width:440px;margin:0 auto}
  .hero-stats{bottom:26px;padding:13px 18px}
  .hero-stats .hs{padding:0 16px}
  .hero-stats b{font-size:21px}
}
@media(max-width:768px){
  .header-top-bar{display:none}
  .nav-list{display:none}
  .menu-toggle{display:flex}
  .header-cta{display:none}
  .hero{margin-top:74px}
  .page-banner{margin-top:74px}
  .nav-list.active{display:flex;flex-direction:column;position:absolute;top:74px;left:0;width:100%;background:rgba(10,22,40,.82);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);padding:16px 20px;gap:4px;border-top:1px solid rgba(255,255,255,.08)}
  .hero-inner{gap:26px;padding:0 18px 90px}
  .hero-content h1{font-size:30px}
  .hero-content p{font-size:14px}
  .hv-main img{max-height:200px}
  .hv-row img{height:58px}
  .hero-stats{display:none}
  .section{padding:48px 0}
  .section-header h2{font-size:26px}
  .products-grid,.news-grid,.related-grid,.cases-grid,.solutions-grid{grid-template-columns:1fr}
  .fields-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .about-metrics{grid-template-columns:1fr;gap:16px}
  .metric{padding:26px 20px}
  .metric-icon{width:54px;height:54px}
  .metric-main strong{font-size:38px}
  .metric p{display:block;max-width:none}
  .about-text h3{font-size:24px}
  .about-hero{aspect-ratio:4/3.5;min-height:300px}
  .hero-overlay-grid{left:10px;right:10px;bottom:42px;gap:6px}
  .hero-stat{padding:10px 8px}
  .hero-num{font-size:17px}
  .about-actions{justify-content:center}
  .page-banner h1{font-size:26px}
  .cta-content h2{font-size:24px}
.logo img{height:40px;padding:4px 8px}
.logo-text strong{font-size:13px}
.logo-text small{font-size:11px}
.logo-text{padding-left:10px}
.logo-text::before{height:22px}
  .cta-section{padding:40px 20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .pd-info h1{font-size:24px}
}

@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .fade-in{opacity:1;transform:none}
}

/* ===== Factory / 智造 ===== */
.factory-sec{padding:42px 0 52px}
.factory-showcase{display:flex;flex-direction:column;gap:18px}
/* 工厂实景：左图右文卡片 + 横向缩略图条（降低密度，避免照片墙拥挤） */
.factory-spotlight{position:relative}
.spotlight-card{display:flex;border-radius:16px;overflow:hidden;background:#fff;box-shadow:0 10px 32px rgba(10,22,40,.1);min-height:320px}
.spotlight-img-wrap{flex:0 0 50%;position:relative;overflow:hidden;background:#e8eef4}
.spotlight-img-wrap img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s cubic-bezier(.16,1,.3,1)}
.spotlight-img-wrap:hover img{transform:scale(1.04)}
/* 序号徽标（图片区左上角） */
.spotlight-index{position:absolute;top:16px;left:16px;z-index:3;font-size:12px;font-weight:700;letter-spacing:.1em;color:#fff;background:rgba(10,22,40,.45);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);padding:4px 11px;border-radius:999px}
/* 计数 01 / 07（图片区右上角） */
.spotlight-count{position:absolute;top:16px;right:18px;z-index:3;font-size:12px;font-weight:600;letter-spacing:.12em;color:#fff;opacity:.85}
/* 轮播左右箭头 */
.spotlight-nav{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:40px;height:40px;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(10,22,40,.42);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);color:#fff;font-size:22px;line-height:1;padding:0;transition:background .3s var(--ease),transform .3s var(--ease)}
.spotlight-nav.prev{left:12px}
.spotlight-nav.next{right:12px}
.spotlight-nav:hover{background:var(--brand);transform:translateY(-50%) scale(1.08)}
.spotlight-nav:focus-visible{outline:2px solid #fff;outline-offset:2px}
/* 右侧文字面板 */
.spotlight-info{flex:1;padding:36px 34px 28px;display:flex;flex-direction:column;justify-content:center}
.spotlight-info h3{margin:0 0 12px;font-size:22px;font-weight:700;color:var(--ink);letter-spacing:.01em;line-height:1.3}
.spotlight-info p{margin:0;font-size:14px;line-height:1.7;color:var(--text-muted,#5a6b7d)}
/* 缩略图条 */
.factory-thumbs{display:flex;gap:14px;overflow-x:auto;padding:4px 2px 8px;scrollbar-width:thin;scrollbar-color:rgba(0,91,172,.4) transparent}
.factory-thumbs::-webkit-scrollbar{height:6px}
.factory-thumbs::-webkit-scrollbar-thumb{background:rgba(0,91,172,.35);border-radius:999px}
.factory-thumbs::-webkit-scrollbar-track{background:transparent}
.fac-thumb{flex:0 0 auto;width:152px;height:98px;border-radius:10px;overflow:hidden;cursor:pointer;position:relative;border:2px solid transparent;opacity:.58;padding:0;background:none;transition:opacity .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease)}
.fac-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.fac-thumb:hover{opacity:1;transform:translateY(-2px)}
.fac-thumb.is-active{opacity:1;border-color:var(--brand);box-shadow:0 8px 20px rgba(0,91,172,.25)}
/* 平板：左图稍窄 */
@media(max-width:1024px){
  .spotlight-card{min-height:280px}
  .spotlight-img-wrap{flex:0 0 48%}
  .spotlight-info{padding:28px 24px 22px}
}
/* 手机：上下堆叠 */
@media(max-width:640px){
  .spotlight-card{flex-direction:column;min-height:auto;border-radius:12px}
  .spotlight-img-wrap{flex:none;aspect-ratio:16/9;min-height:220px}
  .spotlight-info{padding:22px 20px 18px}
  .spotlight-info h3{font-size:19px}
  .spotlight-nav{width:36px;height:36px;font-size:20px}
  .spotlight-nav.prev{left:8px}
  .spotlight-nav.next{right:8px}
  .fac-thumb{width:128px;height:84px}
}
/* ===== About 响应式 + 留言表单标签/按钮 ===== */
.form-group label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin:16px 0 8px}
.form-group label:first-child{margin-top:0}
.form-group button{margin-top:22px;width:100%;background:linear-gradient(135deg,var(--brand-600),var(--brand));color:#fff;border:none;padding:13px 28px;border-radius:8px;font-weight:600;cursor:pointer;font-family:inherit;font-size:15px;transition:all .3s var(--ease)}
.form-group button:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,91,172,.28)}
@media(max-width:1024px){
  .about-content{grid-template-columns:1fr;gap:40px}
  .about-hero{aspect-ratio:16/9;min-height:280px}
  .hero-overlay-grid{grid-template-columns:repeat(4,1fr);left:12px;right:12px;bottom:44px}
  .solutions-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .about-metrics{grid-template-columns:1fr;gap:16px}
  .solutions-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr;gap:24px}
  .about-text h3{font-size:26px}
  .about-hero{aspect-ratio:16/9;min-height:240px}
  .hero-overlay-grid{grid-template-columns:repeat(4,1fr);gap:6px;left:10px;right:10px;bottom:38px}
}

/* ===== About / 智造 内容页：收紧各区块间距 ===== */
.about-page .section,
.mfg-page .section{padding:32px 0}
.about-page .section.bg-light,
.mfg-page .section.bg-light{padding:22px 0}
.about-page .section-header,
.mfg-page .section-header{margin-bottom:16px}
.about-page .section-header h2,
.mfg-page .section-header h2{margin-bottom:10px}
.about-page .about-content{margin-bottom:12px}
.about-page .about-text h3{margin-bottom:12px}
.about-page .about-actions{margin-top:18px}
.mfg-page .factory-showcase{gap:14px}
.mfg-page .factory-stats{padding:20px 22px}
.about-page .page-banner,
.mfg-page .page-banner{height:220px}
/* 关于页解决方案：减上方空白、增 footer 间距 */
.about-page .solutions-section{padding:6px 0 44px}
.about-page .solutions-section .section-header{margin-bottom:12px}
@media(max-width:768px){
  .about-page .section,
  .mfg-page .section{padding:26px 0}
  .about-page .section.bg-light,
  .mfg-page .section.bg-light{padding:20px 0}
  .about-page .solutions-section{padding:4px 0 36px}
  .about-page .solutions-section .section-header{margin-bottom:10px}
}