:root{
  --navy:#4E3A28;
  --blue:#A8763E;
  --blue-light:#C29A5E;
  --sky:#F4EBDC;
  --ink:#3A2F23;
  --gray:#6B5D4A;
  --line:#E7DAC4;
  --white:#FFFFFF;
  --bg:#FBF6EC;
  --shadow:0 10px 30px rgba(78,58,40,.08);
  --shadow-lg:0 18px 50px rgba(78,58,40,.14);
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink);background:var(--white);line-height:1.65;-webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
section{padding:88px 0}
.section-head{text-align:center;max-width:680px;margin:0 auto 52px}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);background:var(--sky);padding:6px 16px;border-radius:999px;margin-bottom:16px}
.section-head h2{font-size:34px;font-weight:800;color:var(--navy);line-height:1.25;margin-bottom:14px}
.section-head p{color:var(--gray);font-size:16px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:15px;padding:14px 30px;border-radius:10px;cursor:pointer;transition:.25s;border:2px solid transparent}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--navy);transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-ghost{background:transparent;color:var(--navy);border-color:var(--navy)}
.btn-ghost:hover{background:var(--navy);color:#fff}

/* ===== 顶栏 ===== */
header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.9);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:12px}
.logo-mark{height:42px;flex-shrink:0;display:block}
.logo-mark img{height:42px;width:auto;display:block}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text .en{font-size:16px;font-weight:800;color:var(--navy)}
.logo-text .cn{font-size:11px;color:var(--gray);margin-top:2px}
.footer-brand .logo-mark img{filter:invert(1) brightness(1.15)}

/* ===== 顶栏 Products Hover 大菜单 ===== */
.nav-item{position:relative}
.mega-menu{
  position:absolute;top:100%;left:50%;
  transform:translateX(-50%) translateY(8px);
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow-lg);
  padding:20px;width:min(1280px,96vw);
  opacity:0;visibility:hidden;transition:.22s;z-index:99;pointer-events:none;
}
.nav-item.has-mega:hover .mega-menu,
.nav-item.has-mega.is-open .mega-menu{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);pointer-events:auto}
.mega-grid{display:grid;grid-template-columns:repeat(10,1fr);gap:14px}
.mega-card{
  display:flex;flex-direction:column;align-items:center;text-decoration:none;
  color:var(--ink);padding:8px;border-radius:12px;transition:.2s;text-align:center
}
.mega-card:hover{background:var(--sky);transform:translateY(-3px)}
.mega-card img{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:10px;display:block;margin-bottom:8px;background:var(--sky)}
.mega-card span{font-size:12px;font-weight:700}
.mega-card:hover span{color:var(--blue)}
@media(max-width:1100px){
  .mega-grid{grid-template-columns:repeat(5,1fr)}
  .mega-menu{padding:18px}
}
@media(max-width:768px){
  .mega-menu{position:static;transform:none;width:auto;box-shadow:none;border:0;padding:0 0 0 16px;opacity:1;visibility:visible;display:none}
  .nav-item.has-mega.is-open .mega-menu{display:block}
  .mega-grid{grid-template-columns:repeat(2,1fr)}
}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{font-size:15px;font-weight:600;color:var(--ink);transition:.2s;position:relative}
.nav-links a:hover{color:var(--blue)}
.nav-links a.active{color:var(--blue)}
.nav-links a.active::after{content:"";position:absolute;left:0;bottom:-6px;width:100%;height:2px;background:var(--blue);border-radius:2px}
.nav-right{display:flex;align-items:center;gap:16px}
.lang-switch{display:flex;background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:3px;font-size:13px;font-weight:700}
.lang-switch button{border:none;background:transparent;padding:7px 14px;border-radius:999px;cursor:pointer;color:var(--gray);transition:.2s;font-weight:700}
.lang-switch button.active{background:var(--navy);color:#fff}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;width:40px;height:40px}
.menu-toggle svg{width:26px;height:26px;color:var(--navy)}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#4E3A28 0%,#6B4E32 45%,#A8763E 100%);
  color:#fff;padding:120px 0 130px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 80% 20%,rgba(76,146,232,.45),transparent 55%),
             radial-gradient(circle at 15% 85%,rgba(11,46,89,.6),transparent 50%);
}
.hero .container{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.hero h1{font-size:48px;font-weight:800;line-height:1.18;margin-bottom:20px;text-shadow:0 2px 14px rgba(0,0,0,.5)}
.hero h1 span{color:#fff}
.hero p{font-size:18px;color:#D7E6FA;max-width:520px;margin-bottom:36px;text-shadow:0 1px 8px rgba(0,0,0,.4)}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero .btn-ghost{color:#fff;border-color:rgba(255,255,255,.55)}
.hero .btn-ghost:hover{background:#fff;color:var(--navy)}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px;max-width:520px}
.hero-stats .num{font-size:30px;font-weight:800;color:#fff}
.hero-stats .label{font-size:13px;color:#D6BE97}
.hero-card{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:20px;
  padding:32px;backdrop-filter:blur(8px);
}
.hero-card h3{font-size:16px;font-weight:700;margin-bottom:18px;color:#F4EBDC}
.hero-card ul li{display:flex;align-items:center;gap:12px;padding:11px 0;border-bottom:1px solid rgba(255,255,255,.1);font-size:15px;color:#F4EBDC}
.hero-card ul li:last-child{border-bottom:none}
.hero-card .dot{width:8px;height:8px;border-radius:50%;background:#C29A5E;flex-shrink:0}

/* ===== 页面横幅（子页） ===== */
.page-banner{
  background:url(../images/company/office-display-greenwall.jpg) center/cover;
  color:#fff;padding:36px 0;text-align:center;position:relative;overflow:hidden;
}
.page-banner::before{content:none}
.page-banner .container{position:relative}
.page-banner h1{font-size:32px;font-weight:800;margin-bottom:8px;text-shadow:0 1px 8px rgba(0,0,0,.55)}
.page-banner p{font-size:15px;color:#fff;max-width:560px;margin:0 auto;text-shadow:0 1px 6px rgba(0,0,0,.4)}
.breadcrumb{font-size:13px;color:rgba(255,255,255,.85);margin-bottom:10px}
.breadcrumb a:hover{color:#fff}
.page-banner.about-banner{background-image:url(../images/company/exhibition-negotiation.jpg)}
.page-banner.contact-banner{background-image:url(../images/company/client-ningbo-exhibition.jpg)}

/* ===== 合作客人（6 张）===== */
.clients-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.clients-wall .client-card{position:relative;border-radius:var(--radius);overflow:hidden;height:280px;box-shadow:var(--shadow);background:#fff}
.clients-wall .client-card img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s}
.clients-wall .client-card:hover img{transform:scale(1.05)}
.clients-wall .client-cap{position:absolute;left:0;right:0;bottom:0;padding:14px 18px;color:#fff;background:linear-gradient(transparent,rgba(11,46,89,.8));font-size:14px;font-weight:600}

/* ===== 客户与展会 ===== */
.footprint-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:24px;align-items:stretch}
.footprint-card{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--bg);min-height:440px}
.footprint-card img{width:100%;height:100%;object-fit:cover;display:block}
.footprint-caption{position:absolute;left:0;right:0;bottom:0;padding:28px;color:#fff;background:linear-gradient(transparent,rgba(11,46,89,.75))}
.footprint-caption b{display:block;font-size:18px;font-weight:800;margin-bottom:4px}
.footprint-caption span{font-size:14px;color:#EAD9BE}
.footprint-stack{display:grid;grid-template-rows:1.6fr 1fr;gap:24px;min-height:440px}
.footprint-stack img{border-radius:var(--radius);width:100%;height:100%;object-fit:cover;display:block}
.footprint-row{display:grid;grid-template-columns:1fr 1fr;gap:24px;height:100%}

/* ===== 客户与展会 (About 页) ===== */
.exhibition-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.exhibition-card{display:block;position:relative;border-radius:var(--radius);overflow:hidden;height:260px;text-decoration:none;color:inherit}
.exhibition-card img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s}
.exhibition-card:hover img{transform:scale(1.05)}
.exhibition-cap{position:absolute;left:0;right:0;bottom:0;padding:14px 18px;color:#fff;font-size:15px;font-weight:700;background:linear-gradient(transparent,rgba(11,46,89,.7))}

/* ===== 合作工厂 ===== */
.factory-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.factory-card{position:relative;border-radius:var(--radius);overflow:hidden;height:240px;box-shadow:var(--shadow)}
.factory-card img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s}
.factory-card:hover img{transform:scale(1.05)}
.factory-cap{position:absolute;left:14px;bottom:14px;padding:6px 14px;background:var(--navy);color:#fff;font-size:13px;font-weight:700;border-radius:999px;letter-spacing:.04em}

/* ===== 关于 ===== */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-visual{position:relative}
.about-visual .main-img{background:linear-gradient(135deg,var(--sky),#EBDDC4);border-radius:var(--radius);height:340px;display:flex;align-items:center;justify-content:center;color:var(--blue);overflow:hidden}
.about-visual .main-img img{width:100%;height:100%;object-fit:cover;display:block}
.about-visual .main-img svg{width:110px;height:110px}
.about-visual .badge{
  position:absolute;bottom:-24px;right:-18px;background:var(--navy);color:#fff;border-radius:16px;
  padding:20px 26px;box-shadow:var(--shadow-lg);
}
.about-visual .badge .b-num{font-size:28px;font-weight:800}
.about-visual .badge .b-label{font-size:13px;color:#D6BE97}
.about-text h2{font-size:30px;font-weight:800;color:var(--navy);margin-bottom:18px}
.about-text p{color:var(--gray);margin-bottom:16px}
.about-points{margin-top:26px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.about-points .point{display:flex;gap:12px;align-items:flex-start}
.point .ic{width:38px;height:38px;border-radius:10px;background:var(--sky);display:flex;align-items:center;justify-content:center;color:var(--blue);flex-shrink:0}
.point .ic svg{width:20px;height:20px}
.point b{display:block;font-size:15px;color:var(--navy)}
.point span{font-size:13px;color:var(--gray)}

/* ===== 产品 ===== */
.products{background:var(--bg)}
.product-layout{display:grid;grid-template-columns:240px 1fr;gap:36px;align-items:start}
.product-sidebar{position:sticky;top:92px}
.product-sidebar h4{font-size:15px;font-weight:800;color:var(--navy);margin-bottom:16px}
.product-sidebar #categoryList{display:flex;flex-direction:column;gap:4px}
.product-sidebar #categoryList button{
  display:flex;align-items:center;gap:10px;width:100%;text-align:left;padding:11px 14px;
  border:none;background:transparent;border-radius:10px;cursor:pointer;font-size:14px;font-weight:600;
  color:var(--gray);transition:.2s;font-family:inherit;
}
.product-sidebar #categoryList button:hover{background:#fff;color:var(--navy)}
.product-sidebar #categoryList button.active{background:var(--navy);color:#fff}
.cat-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.cat-count{margin-left:auto;font-size:12px;opacity:.6;font-weight:700}
.product-main{min-width:0}
.product-search{max-width:100%;margin:0 0 18px}
.product-search input{
  width:100%;padding:13px 20px;border:1px solid var(--line);border-radius:999px;font-size:15px;
  font-family:inherit;color:var(--ink);background:#fff;transition:.2s;outline:none;
}
.product-search input:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(29,111,224,.1)}
.product-filter{display:flex;justify-content:flex-start;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.product-filter button{border:1px solid var(--line);background:#fff;color:var(--gray);padding:8px 18px;border-radius:999px;font-size:13px;font-weight:600;cursor:pointer;transition:.2s;font-family:inherit}
.product-filter button.active{background:var(--blue);color:#fff;border-color:var(--blue)}
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.product-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.3s}
.product-card-link{display:block;color:inherit;text-decoration:none}
.product-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.product-thumb{aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;color:#fff;position:relative;overflow:hidden}
.product-thumb svg{width:72px;height:72px;opacity:.95}
.product-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:opacity .25s ease}
.product-thumb img.thumb-hover{opacity:0}
.product-card.has-hover:hover .product-thumb img.thumb-primary{opacity:0}
.product-card.has-hover:hover .product-thumb img.thumb-hover{opacity:1}

/* ===== 首页产品分类导航 ===== */
.category-nav{display:grid;grid-template-columns:repeat(5,1fr);gap:22px}
.cat-nav-card{display:flex;flex-direction:column;align-items:center;text-decoration:none;color:var(--ink);transition:.25s}
.cat-nav-card img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius);display:block;box-shadow:var(--shadow);transition:.25s;background:var(--sky)}
.cat-nav-card:hover img{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.cat-nav-card span{margin-top:12px;font-size:15px;font-weight:700}
.cat-nav-card:hover span{color:var(--blue)}
@media(max-width:960px){
  .category-nav{grid-template-columns:repeat(3,1fr);gap:16px}
}
@media(max-width:640px){
  .category-nav{grid-template-columns:repeat(2,1fr);gap:14px}
  .cat-nav-card span{font-size:13px}
}
.product-body{padding:14px 18px}
.product-body .sku{display:block;font-size:12px;font-weight:700;color:var(--blue);letter-spacing:.06em;text-transform:uppercase;margin-bottom:2px}
.product-body h3{font-size:15px;font-weight:700;color:var(--navy);margin:0}

/* ===== 产品详情 ===== */
.detail-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:start}
.detail-image{width:100%;height:480px;border-radius:var(--radius);overflow:hidden;display:flex;align-items:center;justify-content:center;color:#fff;position:relative;box-shadow:var(--shadow)}
.detail-image svg{width:120px;height:120px;opacity:.95}
.detail-image img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#fff}

/* 多图画廊 */
.detail-gallery{display:grid;grid-template-columns:92px 1fr;gap:18px;align-items:start}
.detail-thumbs{display:flex;flex-direction:column;gap:10px;max-height:480px;overflow-y:auto;padding-right:4px}
.detail-thumbs .thumb{width:82px;height:82px;object-fit:cover;border-radius:8px;cursor:pointer;border:2px solid transparent;transition:.2s;background:#fff;display:block;flex-shrink:0}
.detail-thumbs .thumb.active{border-color:var(--blue)}
.detail-thumbs .thumb:hover{transform:scale(1.05);border-color:var(--blue)}
.detail-image-main{position:relative;width:100%;height:480px;border-radius:var(--radius);overflow:hidden;background:#fff;box-shadow:var(--shadow)}
.detail-image-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;display:block}
.gallery-nav{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border-radius:50%;background:rgba(11,46,89,.55);color:#fff;border:none;font-size:24px;line-height:1;cursor:pointer;transition:.2s;z-index:5}
.gallery-nav:hover{background:rgba(11,46,89,.85)}
.gallery-prev{left:14px}
.gallery-next{right:14px}
.gallery-counter{position:absolute;right:14px;bottom:14px;padding:5px 12px;background:rgba(11,46,89,.7);color:#fff;font-size:13px;font-weight:600;border-radius:999px}
.detail-info{padding:8px 0}
.detail-cat{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--blue);background:var(--sky);padding:5px 14px;border-radius:999px;margin-bottom:14px}
.detail-sku{display:block;font-size:13px;font-weight:700;color:var(--gray);margin-bottom:10px;letter-spacing:.05em}
.detail-info h1{font-size:32px;font-weight:800;color:var(--navy);line-height:1.2;margin-bottom:16px}
.detail-desc{font-size:15px;color:var(--gray);margin-bottom:28px;line-height:1.8}
.detail-actions{display:flex;gap:14px;flex-wrap:wrap}
.specs-section{margin-top:64px}
.specs-section h2{font-size:24px;font-weight:800;color:var(--navy);margin-bottom:20px}
.specs-table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.specs-table tr{border-bottom:1px solid var(--line)}
.specs-table tr:last-child{border-bottom:none}
.specs-table th{text-align:left;padding:14px 20px;font-size:14px;font-weight:700;color:var(--navy);background:var(--bg);width:180px;vertical-align:top}
.specs-table td{padding:14px 20px;font-size:14px;color:var(--ink)}

/* ===== 优势 ===== */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.adv-card{text-align:center;padding:36px 22px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);transition:.3s}
.adv-card:hover{border-color:var(--blue);box-shadow:var(--shadow)}
.adv-card .ic{width:60px;height:60px;margin:0 auto 18px;border-radius:16px;background:var(--sky);display:flex;align-items:center;justify-content:center;color:var(--blue)}
.adv-card .ic svg{width:30px;height:30px}
.adv-card h3{font-size:16px;font-weight:800;color:var(--navy);margin-bottom:10px}
.adv-card p{font-size:14px;color:var(--gray)}

/* ===== 流程 ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.step{position:relative;padding:28px 22px;border-radius:var(--radius);background:var(--sky)}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-size:40px;font-weight:800;color:rgba(29,111,224,.2);display:block;margin-bottom:12px;
}
.step h3{font-size:17px;font-weight:800;color:var(--navy);margin-bottom:8px}
.step p{font-size:14px;color:var(--gray)}

/* ===== 首页一站式服务流程（6 步）===== */
.flow-steps{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.flow-step{position:relative;padding:26px 16px;border-radius:var(--radius);background:var(--sky);text-align:center;transition:.25s}
.flow-step:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.flow-step .num{width:34px;height:34px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;font-size:15px;display:flex;align-items:center;justify-content:center;margin:0 auto 12px}
.flow-step h3{font-size:15px;font-weight:800;color:var(--navy);margin-bottom:6px}
.flow-step p{font-size:12.5px;color:var(--gray);line-height:1.5}
@media(max-width:960px){
  .flow-steps{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:640px){
  .flow-steps{grid-template-columns:repeat(2,1fr)}
}

/* ===== FAQ 手风琴 ===== */
.faq-group{margin-bottom:44px}
.faq-group-title{font-size:22px;font-weight:800;color:var(--navy);margin-bottom:18px;padding-bottom:12px;border-bottom:2px solid var(--sky)}
.faq-item{border:1px solid var(--line);border-radius:10px;margin-bottom:10px;background:#fff;overflow:hidden;transition:border-color .2s}
.faq-item.open{border-color:var(--blue);box-shadow:var(--shadow)}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:16px 18px;background:#fff;border:none;cursor:pointer;font-family:inherit;font-size:15px;font-weight:700;color:var(--ink);text-align:left;transition:.2s}
.faq-q:hover{color:var(--blue)}
.faq-item.open .faq-q{color:var(--blue)}
.faq-icon{width:24px;height:24px;border-radius:50%;border:1.5px solid var(--blue);position:relative;flex-shrink:0;color:var(--blue);transition:.25s}
.faq-icon::before,.faq-icon::after{content:'';position:absolute;top:50%;left:50%;background:currentColor;border-radius:1px}
.faq-icon::before{width:11px;height:1.6px;transform:translate(-50%,-50%)}
.faq-icon::after{width:1.6px;height:11px;transform:translate(-50%,-50%);transition:.25s}
.faq-item.open .faq-icon{background:var(--blue)}
.faq-item.open .faq-icon::before{background:#fff}
.faq-item.open .faq-icon::after{background:#fff;transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}

/* ===== 详情页返回按钮 ===== */
.back-link{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;font-size:18px;font-weight:700;line-height:1;color:var(--gray);text-decoration:none;border:1px solid var(--line);border-radius:50%;background:#fff;margin-bottom:12px;transition:.2s}
.back-link:hover{color:var(--blue);border-color:var(--blue);transform:translateX(-2px);box-shadow:var(--shadow)}

/* ===== 发展历程时间轴 ===== */
.timeline{position:relative;max-width:1000px;margin:0 auto}
.timeline::before{content:'';position:absolute;left:50%;top:0;bottom:0;width:2px;background:var(--line);transform:translateX(-50%)}
.tl-item{position:relative;width:50%;padding:10px 44px;box-sizing:border-box}
.tl-item.tl-left{left:0;text-align:right}
.tl-item.tl-right{left:50%;text-align:left}
.tl-item::before{content:'';position:absolute;top:28px;width:14px;height:14px;border-radius:50%;background:var(--blue);border:3px solid #fff;box-shadow:0 0 0 2px var(--blue);z-index:1}
.tl-item.tl-left::before{right:-7px}
.tl-item.tl-right::before{left:-7px}
.tl-card{background:var(--sky);border-radius:12px;padding:18px 20px;transition:.2s}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.tl-year{display:inline-block;font-size:15px;font-weight:800;color:var(--blue);margin-bottom:6px;letter-spacing:.02em}
.tl-title{font-size:17px;font-weight:800;color:var(--navy);margin:0 0 6px}
.tl-desc{font-size:14px;color:var(--gray);line-height:1.7;margin:0}
@media(max-width:640px){
  .timeline::before{left:15px;transform:none}
  .tl-item{width:100%;left:0;padding:10px 0 10px 38px;text-align:left}
  .tl-item.tl-right{left:0}
  .tl-item::before{left:9px;box-shadow:0 0 0 2px var(--blue)}
}
.faq-a p{font-size:14.5px;color:var(--gray);line-height:1.85;margin:0 20px 12px}
.faq-a p:first-child{margin-top:18px}
.faq-a p:last-child{margin-bottom:18px}
.faq-a ul{list-style:disc;padding-left:40px;margin:0 20px 12px}
.faq-a ul:last-child{margin-bottom:18px}
.faq-a ul li{font-size:14.5px;color:var(--gray);line-height:1.8}

/* ===== 联系 ===== */
.contact{background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff}
.contact .section-head h2{color:#fff}
.contact .section-head p{color:#EAD9BE}
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:48px}
.contact-info h3{font-size:22px;font-weight:800;margin-bottom:16px}
.contact-info p{color:#EAD9BE;margin-bottom:28px;max-width:420px}
.info-item{display:flex;gap:14px;align-items:flex-start;margin-bottom:22px}
.info-item .ic{width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.12);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.info-item .ic svg{width:22px;height:22px}
.info-item b{display:block;font-size:15px}
.info-item span{font-size:14px;color:#EAD9BE}
.form-card{background:#fff;border-radius:16px;padding:32px;box-shadow:var(--shadow-lg)}
.form-card h3{color:var(--navy);font-size:20px;font-weight:800;margin-bottom:22px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:700;color:var(--navy);margin-bottom:6px}
.field input,.field textarea,.field select{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:14px;
  font-family:inherit;color:var(--ink);background:var(--bg);transition:.2s;outline:none;
}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--blue);background:#fff}
.field textarea{resize:vertical;min-height:110px}
.form-card .btn{width:100%}

/* ===== CTA 横幅 ===== */
.cta-band{background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;text-align:center;padding:64px 0}
.cta-band h2{font-size:30px;font-weight:800;margin-bottom:14px}
.cta-band p{color:#EAD9BE;margin-bottom:28px;max-width:520px;margin-left:auto;margin-right:auto}
.cta-band .btn-primary{background:#fff;color:var(--navy)}
.cta-band .btn-primary:hover{background:var(--sky)}

/* ===== 页脚 ===== */
footer{background:var(--navy);color:#D6BE97;padding:56px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .logo-text .en{color:#fff}
.footer-brand .logo-text .cn{color:#D6BE97}
.footer-brand p{font-size:14px;margin-top:16px;max-width:320px}
.footer-col h4{color:#fff;font-size:15px;font-weight:800;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;transition:.2s}
.footer-col ul li a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:13px}
.footer-bottom a{color:#D6BE97}

/* ===== 响应式 ===== */
@media(max-width:1100px){
  .product-grid{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:960px){
  .hero .container{grid-template-columns:1fr}
  .hero{padding:80px 0}
  .hero h1{font-size:36px}
  .about-grid{grid-template-columns:1fr}
  .about-visual .badge{right:0}
  .detail-grid{grid-template-columns:1fr}
  .detail-image{height:380px}
  .detail-gallery{grid-template-columns:78px 1fr}
  .detail-image-main{height:380px}
  .detail-thumbs .thumb{width:70px;height:70px}
  .product-layout{grid-template-columns:1fr}
  .product-sidebar{position:static}
  .product-sidebar #categoryList{flex-direction:row;flex-wrap:wrap;gap:8px}
  .product-sidebar #categoryList button{width:auto}
  .footprint-grid{grid-template-columns:1fr}
  .footprint-stack{min-height:auto}
  .footprint-card{min-height:320px}
  .exhibition-grid{grid-template-columns:repeat(2,1fr)}
  .factory-grid{grid-template-columns:repeat(2,1fr)}
  .clients-wall{grid-template-columns:repeat(2,1fr)}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  section{padding:64px 0}
  .section-head h2{font-size:27px}
  .nav-links,.nav-right .btn{display:none}
  .menu-toggle{display:block}
  .nav-links.open{display:flex;flex-direction:column;position:absolute;top:72px;left:0;right:0;background:#fff;padding:20px 24px;gap:18px;box-shadow:var(--shadow-lg);border-bottom:1px solid var(--line)}
  .nav-links.open a.active::after{bottom:-4px}
  .hero h1{font-size:30px}
  .page-banner h1{font-size:30px}
  .hero-stats{grid-template-columns:1fr 1fr 1fr;gap:12px}
  .hero-stats .num{font-size:24px}
  .product-grid{grid-template-columns:1fr}
  .adv-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .about-visual .main-img{height:240px}
  .about-visual .main-img img{width:100%;height:100%;object-fit:cover}
  .footer-grid{grid-template-columns:1fr}
  .detail-image{height:280px}
  .detail-info h1{font-size:24px}
  .specs-table th{width:120px;font-size:13px}
  .specs-table th,.specs-table td{padding:10px 14px;font-size:13px}
  .exhibition-grid{grid-template-columns:1fr}
  .factory-grid{grid-template-columns:1fr}
  .clients-wall{grid-template-columns:1fr}
}