/* ==========================================
   坤凝低温 — Kunning Cryo 基础样式 v1.0
   B2B 工业风格｜圆润科技感
   ========================================== */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700;800&display=swap');

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Montserrat','Microsoft YaHei','PingFang SC',Arial,sans-serif;color:#333;background:#fff;line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit;transition:all .3s ease}
ul{list-style:none}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* ===== 导航栏 ===== */

/* Topbar */
.topbar{background:#111;color:#fff;font-size:.78rem;padding:6px 0}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;gap:12px}
.topbar a{color:rgba(255,255,255,.85);text-decoration:none}
.topbar a:hover{color:#fff}
.topbar-left{display:flex;gap:18px}
.topbar-lang{display:flex;gap:10px}
.topbar-lang a{padding:2px 8px;border-radius:3px}
.topbar-lang a.active{background:rgba(255,255,255,.15)}
.navbar .nav-links{gap:.35rem}
.navbar .nav-links .btn-quote{background:#d40000;color:#fff!important;padding:8px 18px!important;border-radius:6px;font-weight:600;text-transform:none}
.navbar .nav-links .btn-quote:hover{background:#a80000;color:#fff!important}
.navbar .nav-links .btn-quote::after{display:none}

.navbar{position:sticky;top:0;left:0;width:100%;z-index:1000;background:rgba(255,255,255,.97);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(0,0,0,.06);height:64px}
.navbar .container{display:flex;align-items:center;justify-content:space-between;height:64px}
.navbar .nav-links{display:flex;align-items:center;gap:.5rem}
.navbar .nav-links a{font-size:.875rem;color:#555;font-weight:500;text-transform:uppercase;letter-spacing:.1px;padding:6px 0;position:relative;white-space:nowrap}
.navbar .nav-links a::after{content:"";position:absolute;bottom:-2px;left:50%;transform:translateX(-50%);width:0;height:2px;background:linear-gradient(90deg,#333,#111);border-radius:2px;transition:width .3s ease}
.navbar .nav-links a:hover,.navbar .nav-links a.active{color:#111}
.navbar .nav-links a:hover::after,.navbar .nav-links a.active::after{width:80%}

/* ===== 导航下拉菜单 ===== */
.nav-dropdown{position:relative;display:flex;align-items:center}
.nav-dd-trigger{cursor:pointer;font-size:.875rem;color:#555;font-weight:500;text-transform:uppercase;letter-spacing:.1px;padding:6px 0;position:relative;text-decoration:none;white-space:nowrap}
.nav-dd-trigger:hover{color:#111}
.nav-dd-menu{display:none;position:absolute;top:100%;left:50%;transform:translateX(-50%);min-width:170px;background:#fff;border:1px solid #eee;border-radius:10px;box-shadow:0 8px 30px rgba(0,0,0,.1);padding:6px;z-index:1001;margin-top:8px}
.nav-dd-menu::before{content:"";position:absolute;top:-6px;left:50%;transform:translateX(-50%);width:12px;height:12px;background:#fff;border-left:1px solid #eee;border-top:1px solid #eee;transform:translateX(-50%) rotate(45deg)}
.nav-dd-menu a{display:block;padding:8px 14px;font-size:.78rem;color:#444;text-decoration:none;border-radius:6px;white-space:nowrap;text-transform:none;letter-spacing:0}
.nav-dd-menu a:hover{background:#f5f5f5;color:#111}
.nav-dropdown:hover .nav-dd-menu{display:block}
.nav-dropdown:hover .nav-dd-trigger{color:#111}
.nav-dropdown.dd-open .nav-dd-menu{display:block}
.nav-dropdown.dd-open .nav-dd-trigger{color:#111}

/* ===== 中文导航放大（中文更密集，需要更大字和间距） ===== */
html[lang="zh-CN"] .navbar .nav-links{gap:.8rem}
html[lang="zh-CN"] .navbar .nav-links a{font-size:.95rem;letter-spacing:.5px}
html[lang="zh-CN"] .nav-dd-trigger{font-size:.95rem;letter-spacing:.5px}
html[lang="zh-CN"] .nav-dd-menu a{font-size:.85rem}

.lang-switch{display:flex;gap:2px;margin-left:.4rem;padding-left:.6rem;border-left:1px solid #e0e0e0}
.lang-switch a{font-size:.7rem;color:#999;padding:2px 7px;border-radius:4px;font-weight:500;transition:all .3s}
.lang-switch a.active,.lang-switch a:hover{color:#111;background:#f0f0f0}
.menu-toggle{display:none;flex-direction:column;gap:4px;cursor:pointer;padding:4px;background:none;border:none}
.menu-toggle span{display:block;width:24px;height:2px;background:#111;border-radius:2px;transition:all .3s}

/* ===== Banner ===== */
.banner{background:#f8f8f8;color:#111;padding:90px 0 60px;margin-top:0;text-align:center;position:relative;overflow:hidden;border-bottom:1px solid #eee}
.banner.banner-img{color:#fff;border-bottom:none}
.banner.banner-img h1{color:#fff}
.banner.banner-img .banner-slogan{color:#d3d9e5}
/* 白卡(What/Why)上的文字必须深色可读, 不受 banner-img 浅色规则覆盖(2026-09-09修复: 白卡浅白字看不清) */
.banner.banner-img .answer-block{background:#fff;border:1px solid #e8e8e8}
.banner.banner-img .answer-q{color:#d40000}
.banner.banner-img .answer-a{color:#4a4a4a}
.banner.banner-img .banner-stat-badges .stat-badge{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.15);color:#fff}
.banner::before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle at 30% 50%,rgba(0,0,0,.02) 0%,transparent 50%);pointer-events:none}
.banner h1{font-size:2.8rem;font-weight:700;margin-bottom:16px;letter-spacing:-.5px;position:relative}
.banner-slogan{font-size:1.05rem;color:#666;max-width:650px;margin:0 auto 28px;line-height:1.8;font-weight:300;position:relative}
.banner-stat-badges{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;position:relative}
.badge{padding:7px 20px;background:#fff;border:1px solid #e0e0e0;border-radius:20px;font-size:.78rem;color:#444;font-weight:500}
.badge:hover{background:#f5f5f5;transform:translateY(-2px)}

/* ===== 首页第一屏销售逻辑（What/Can/Why）===== */
.banner-answers{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin:32px auto 30px;max-width:1100px;position:relative}
.answer-block{background:#fff;border:1px solid #e8e8e8;border-radius:12px;padding:20px 22px;flex:1;min-width:240px}
.answer-block:hover{box-shadow:0 6px 16px rgba(0,0,0,.06);transform:translateY(-3px)}
.answer-q{font-size:.85rem;font-weight:600;color:#d40000;margin-bottom:8px;letter-spacing:.5px}
.answer-a{font-size:.9rem;color:#555;line-height:1.7;font-weight:300}
.banner-cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:32px;position:relative}
.btn-lg{font-size:1rem;padding:14px 34px;border-radius:6px;font-weight:600;display:inline-block;text-decoration:none;transition:all .3s}
.btn-primary{background:#d40000;color:#fff;border:none;cursor:pointer}
.btn-primary:hover{background:#b00000;transform:translateY(-2px);box-shadow:0 6px 20px rgba(212,0,0,.3)}
.btn-outline{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.6)}
.btn-outline:hover{background:rgba(255,255,255,.1);border-color:#fff;transform:translateY(-2px)}

/* ===== 标语条 ===== */
.strap{background:#fff;padding:24px 0;text-align:center;border-bottom:1px solid #eee}

/* ===== 通用区块 ===== */
.section{padding:90px 0}
.section.alt{background:#f8f8f8}
.section-title{font-size:42px;font-weight:500;color:#393939;text-align:center;margin-bottom:6px;letter-spacing:-.5px}
.section-subtitle{font-size:.85rem;color:#999;text-align:center;margin-bottom:55px;text-transform:uppercase;letter-spacing:1.5px;font-weight:400}
.content-body{max-width:880px;margin:0 auto}
.content-body p{margin-bottom:18px;font-size:.9rem;color:#555;line-height:1.8}
.content-body h2{font-size:1.3rem;font-weight:600;color:#111;margin:40px 0 16px}
.content-body h3{font-size:1.1rem;font-weight:600;color:#111;margin:24px 0 12px}

/* ===== 页面标题 ===== */
.page-header{background:#f8f8f8;padding:80px 0 50px;margin-top:0;text-align:center;border-bottom:1px solid #eee}
.page-header h1{font-size:1.8rem;font-weight:600;color:#111;margin-bottom:8px;letter-spacing:-.3px}
.page-header .section-subtitle{color:#999;margin-bottom:0;font-size:.82rem;text-transform:uppercase;letter-spacing:1px}
.content-section{padding:60px 0}
.content-section.alt{background:#f8f8f8}

/* ===== 按钮 ===== */
.btn-primary{display:inline-block;padding:12px 32px;background:#111;color:#fff!important;font-size:.82rem;font-weight:600;letter-spacing:.5px;text-transform:uppercase;border-radius:8px;transition:all .3s;cursor:pointer;border:none;position:relative;overflow:hidden}
.btn-primary:hover{background:#222;transform:translateY(-2px);box-shadow:0 8px 25px rgba(0,0,0,.15)}
.btn-outline{display:inline-block;padding:10px 30px;background:transparent;color:#111!important;border:2px solid #111;border-radius:8px;font-size:.82rem;font-weight:600;letter-spacing:.5px;text-transform:uppercase;transition:all .3s;cursor:pointer}
.btn-outline:hover{background:#111;color:#fff!important;transform:translateY(-2px);box-shadow:0 8px 25px rgba(0,0,0,.12)}

/* ===== 关于我们预览 ===== */
.about-preview{background:#fff;padding:90px 0}
.content-row{display:flex;gap:60px;align-items:center}
.text-block{flex:1.2}
.text-block h3{color:#111;font-size:1.15rem;margin-bottom:16px;font-weight:600}
.text-block p{color:#555;font-size:.88rem;line-height:1.8;margin-bottom:14px}
.image-placeholder{flex:1;min-height:300px;background:#f5f5f5;border-radius:16px;display:flex;align-items:center;justify-content:center;color:#bbb;font-size:.85rem}

/* ===== 产品卡片 ===== */

/* Fit Screening */
.fit-section{background:#f4f6f8;padding:70px 0}
.fit-section .section-subtitle{max-width:780px;margin:0 auto 36px;color:#555;font-size:.95rem;line-height:1.8}
.fit-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:980px;margin:0 auto}
.fit-col{background:#fff;border-radius:12px;padding:28px 32px;border:1px solid #eee}
.fit-col h3{font-size:1.05rem;margin-bottom:16px}
.fit-col ul{list-style:none;padding:0;margin:0}
.fit-col li{padding:8px 0;padding-left:22px;position:relative;color:#444;font-size:.92rem;border-bottom:1px dashed #f0f0f0}
.fit-col li:last-child{border-bottom:none}
.fit-col li::before{content:"✓";position:absolute;left:0;color:#2e7d32;font-weight:700}
.fit-col.fit-no li::before{content:"✗";color:#c62828}
@media(max-width:768px){.fit-grid{grid-template-columns:1fr}}

.products-overview{background:#fafafa;padding:90px 0}
.products-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.product-card{background:#fff;padding:36px 20px;text-align:center;border:1px solid #e8e8e8;border-radius:12px;transition:all .4s cubic-bezier(.25,.46,.45,.94)}
.product-card:hover{border-color:#1a1a1a;transform:translateY(-10px);box-shadow:0 20px 40px rgba(0,0,0,.1)}
.product-card .icon-placeholder{font-size:2rem;margin-bottom:14px;display:block}
.product-card h3{color:#393939;font-size:18px;margin-bottom:10px;font-weight:500}
.product-card a:hover h3{color:#111}
.product-card p{color:#555;font-size:.85rem;line-height:1.6;margin-bottom:6px}
.product-card .en-name{color:#bbb;font-size:.72rem;margin-top:10px;text-transform:uppercase;letter-spacing:.5px}

/* ===== 核心优势 ===== */
.core-advantages{background:#fff;padding:90px 0}
.advantages-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.advantage-item{text-align:center;padding:44px 26px;border:1px solid #e8e8e8;border-radius:12px;transition:all .4s cubic-bezier(.25,.46,.45,.94)}
.advantage-item:hover{border-color:#1a1a1a;transform:translateY(-10px);box-shadow:0 20px 40px rgba(0,0,0,.1)}
.adv-icon{font-size:2rem;margin-bottom:12px;display:block}
.advantage-item h4{color:#393939;font-size:18px;margin-bottom:8px;font-weight:500}
.advantage-item p{color:#555;font-size:.85rem;line-height:1.6}

/* ===== 技术能力 ===== */
.tech-section{background:#fafafa;padding:90px 0;text-align:center}
.tech-content{max-width:650px;margin:0 auto}
.tech-content h3{color:#111;font-size:1.1rem;margin-bottom:16px;font-weight:600}
.tech-content p{color:#555;font-size:.88rem;line-height:1.8;margin-bottom:24px}

/* ===== 联系我们 ===== */
.contact-section{background:#fff;padding:90px 0}
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:50px;align-items:start}
.contact-info h3{color:#111;font-size:1.05rem;margin-bottom:20px;font-weight:600}
.contact-info li{display:flex;gap:12px;margin-bottom:14px;font-size:.85rem;color:#555;align-items:flex-start}
.contact-info li span:first-child{flex-shrink:0}
.contact-info li a{color:#111;font-weight:500}
.contact-info li a:hover{color:#666}
.qr-section{margin-top:28px;padding-top:22px;border-top:1px solid #eee}
.qr-section h4{font-size:.85rem;color:#111;font-weight:600;margin-bottom:14px}
.qr-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.qr-item{text-align:center;padding:10px 6px;background:#fafafa;border:1px solid #eee;border-radius:10px;transition:all .25s}
.qr-item:hover{border-color:#ccc;transform:translateY(-2px)}
.qr-item img{width:100%;max-width:120px;aspect-ratio:1;object-fit:contain;border-radius:6px;display:block;margin:0 auto}
.qr-item span{display:block;font-size:.72rem;color:#666;margin-top:6px;font-weight:500}
.qr-modal{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.75);z-index:999999;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(4px)}
.qr-modal-content{position:relative;text-align:center;max-width:90vw;max-height:90vh}
.qr-modal-content img{max-width:min(400px,80vw);max-height:80vh;border-radius:12px;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.qr-modal-content p{color:#fff;font-size:.9rem;margin-top:12px}
.qr-modal-close{position:fixed;top:20px;right:24px;background:rgba(0,0,0,.4);border:none;color:#fff;font-size:1.3rem;width:40px;height:40px;border-radius:50%;cursor:pointer;z-index:10;transition:all .2s}
.qr-modal-close:hover{background:rgba(0,0,0,.7);transform:scale(1.1)}
.contact-form{background:#f8f8f8;padding:34px;border:1px solid #eee;border-radius:16px}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:.78rem;font-weight:600;color:#333;margin-bottom:6px;text-transform:uppercase;letter-spacing:.5px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 16px;border:1px solid #ddd;border-radius:10px;font-size:.88rem;font-family:'Montserrat',sans-serif;transition:all .3s;background:#fff}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:#111;outline:none;box-shadow:0 0 0 3px rgba(0,0,0,.06)}
.form-group textarea{min-height:110px;resize:vertical}

/* ===== 表格 ===== */
.data-table-wrap{overflow-x:auto;margin:24px 0;border-radius:12px;border:1px solid #eee}
.data-table{width:100%;border-collapse:collapse;font-size:.84rem}
.data-table th{background:#111;color:#fff;padding:12px 16px;text-align:left;font-weight:500;font-size:.78rem;text-transform:uppercase;letter-spacing:.5px}
.data-table th:first-child{border-radius:12px 0 0 0}
.data-table th:last-child{border-radius:0 12px 0 0}
.data-table td{padding:10px 16px;border-bottom:1px solid #eee;color:#555}
.data-table tr:last-child td:first-child{border-radius:0 0 0 12px}
.data-table tr:last-child td:last-child{border-radius:0 0 12px 0}
.data-table tr:nth-child(even){background:#fafafa}
.data-table tr:hover{background:#f5f5f5}

/* ===== FAQ ===== */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid #e8e8e8;border-radius:12px;margin-bottom:10px;overflow:hidden;transition:all .3s}
.faq-item:hover{border-color:#1a1a1a}
.faq-q{padding:16px 22px;background:#fff;font-weight:500;color:#393939;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:16px;transition:all .3s}
.faq-q:hover{background:#fafafa}
.faq-q::after{content:"+";font-size:1.2rem;color:#111;transition:transform .3s;font-weight:300}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 22px;max-height:0;overflow:hidden;transition:all .4s;background:#fafafa;font-size:.84rem;color:#555;line-height:1.7}
.faq-item.open .faq-a{padding:16px 22px;max-height:500px}

/* ===== 案例 ===== */
.case-card{padding:26px;background:#fff;border:1px solid #e8e8e8;border-radius:12px;margin-bottom:16px;transition:all .4s cubic-bezier(.25,.46,.45,.94)}
.case-card:hover{border-color:#1a1a1a;transform:translateY(-6px);box-shadow:0 15px 30px rgba(0,0,0,.1)}
.case-card .industry{display:inline-block;padding:4px 12px;background:#111;color:#fff;font-size:.7rem;margin-bottom:10px;text-transform:uppercase;letter-spacing:.5px;border-radius:6px}
.case-card h3{color:#393939;font-size:18px;margin-bottom:8px;font-weight:500}
.case-card p{margin-bottom:8px;color:#555;font-size:.84rem;line-height:1.6}

/* ===== 下载 ===== */
.dl-item{display:flex;justify-content:space-between;align-items:center;padding:18px 22px;background:#fff;border:1px solid #e8e8e8;border-radius:12px;margin-bottom:10px;transition:all .4s cubic-bezier(.25,.46,.45,.94)}
.dl-item:hover{border-color:#1a1a1a;transform:translateY(-4px);box-shadow:0 10px 25px rgba(0,0,0,.08)}
.dl-info h4{color:#393939;font-size:.88rem;margin-bottom:4px;font-weight:500}
.dl-info p{color:#999;font-size:.78rem}
.dl-btn{padding:9px 22px;background:#111;color:#fff;font-size:.78rem;font-weight:500;border-radius:8px;transition:all .3s;text-transform:uppercase;letter-spacing:.5px;display:inline-block}
.dl-btn:hover{background:#222;color:#fff!important;transform:translateY(-2px);box-shadow:0 6px 15px rgba(0,0,0,.15)}

/* ===== 设备卡片 ===== */
.eq-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px;margin:24px 0}
.eq-card{background:#fff;border:1px solid #e8e8e8;border-radius:12px;overflow:hidden;transition:all .4s cubic-bezier(.25,.46,.45,.94)}
.eq-card:hover{border-color:#1a1a1a;transform:translateY(-4px);box-shadow:0 12px 28px rgba(0,0,0,.1)}
.eq-h{padding:14px 18px;background:#fafafa;font-weight:500;color:#393939;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:16px;border-bottom:1px solid #eee;transition:background .3s}
.eq-h:hover{background:#f0f0f0}
.eq-h::after{content:"+";font-size:1.1rem;color:#111;transition:transform .3s;font-weight:300}
.eq-card.open .eq-h::after{transform:rotate(45deg)}
.eq-b{padding:0 18px;max-height:0;overflow:hidden;transition:all .4s;font-size:.82rem;line-height:1.7;color:#555}
.eq-card.open .eq-b{padding:16px 18px;max-height:600px}
.eq-b p{margin-bottom:6px;font-size:.82rem}
.eq-b strong{color:#111}

/* ===== 页脚 ===== */
.footer{background:#1a1a1a;color:rgba(255,255,255,.6);padding:52px 0 0}
.footer-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:48px;padding-bottom:26px;border-bottom:1px solid rgba(255,255,255,.07)}
.footer-col h4{color:#fff;font-size:.85rem;margin-bottom:16px;font-weight:600;letter-spacing:.5px;line-height:1.2}
.footer-col p{font-size:.78rem;line-height:1.85;color:rgba(255,255,255,.5)}
/* 品牌栏：logo 与公司名做成与右侧标题同级的块，避免顶部错位 */
.footer-logo{height:36px;display:block;margin-bottom:15px}
.footer-brand-name{color:#fff;font-size:.85rem;font-weight:600;letter-spacing:.3px;margin-bottom:11px;line-height:1.2}
.footer-social{margin-top:16px}
.social-label{font-size:.72rem;color:rgba(255,255,255,.3);margin-bottom:8px;letter-spacing:.5px}
.social-icons{display:flex;gap:8px;flex-wrap:wrap}
.social-icons a{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;background:rgba(255,255,255,.08);border-radius:8px;font-size:1rem;color:rgba(255,255,255,.6);transition:all .3s}
.social-icons a:hover{background:rgba(255,255,255,.15);color:#fff;transform:translateY(-2px)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{color:rgba(255,255,255,.5);font-size:.8rem;transition:color .3s}
.footer-col ul li a:hover{color:#fff}
.footer-prod-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px 20px}
.footer-prod-grid a{color:rgba(255,255,255,.5);font-size:.78rem;transition:color .3s;line-height:1.5}
.footer-prod-grid a:hover{color:#fff}

/* 联系方式：与上方三列共用同一栅格（同为 1.25fr 1fr 1fr / gap 48px），整行铺满 */
.footer-contact-row{padding:24px 0}
.footer-contact-row h4{color:#fff;font-size:.85rem;margin-bottom:15px;font-weight:600;letter-spacing:.5px;line-height:1.2}
.footer-contact-matrix{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:10px 48px}
.fc-item{display:flex;align-items:center;gap:9px;font-size:.78rem;line-height:1.6;color:rgba(255,255,255,.55);min-width:0}
.fc-item svg,.footer-site svg{width:15px;height:15px;flex-shrink:0;opacity:.7}
.fc-item a{color:rgba(255,255,255,.55);transition:color .3s}
.fc-item a:hover{color:#fff}
.fc-label{color:rgba(255,255,255,.34);margin-right:6px}
.fc-flag{flex-shrink:0;font-size:.62rem;font-weight:700;letter-spacing:.5px;line-height:1.5;padding:0 4px;border:1px solid rgba(255,255,255,.28);border-radius:3px;color:rgba(255,255,255,.6)}

/* 版权条：左版权 / 右网址 */
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0;border-top:1px solid rgba(255,255,255,.07);text-align:left}
.footer-bottom p{font-size:.72rem;color:rgba(255,255,255,.28);letter-spacing:.3px}
.footer-site{display:inline-flex;align-items:center;gap:7px;color:rgba(255,255,255,.38)!important}

/* ===== 响应式 ===== */
@media(max-width:992px){
  .products-grid,.advantages-grid{grid-template-columns:repeat(2,1fr)}
  .content-row{flex-direction:column;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-contact-matrix{grid-template-columns:1fr 1fr;gap:11px 24px}
  .contact-grid{grid-template-columns:1fr}
  .banner h1{font-size:2rem}
  .section-title{font-size:32px}
  .banner{padding:90px 0}
}
@media(max-width:768px){
  .menu-toggle{display:flex}
  .navbar .nav-links{display:none;position:absolute;top:72px;left:0;width:100%;background:rgba(255,255,255,.98);backdrop-filter:blur(12px);flex-direction:column;padding:16px 20px;border-bottom:1px solid #eee;gap:0}
  .navbar .nav-links.open{display:flex}
  .navbar .nav-links a{padding:12px 0;border-bottom:1px solid #f5f5f5;width:100%;text-transform:none;letter-spacing:0}
  .nav-dropdown{flex-direction:column;width:100%;align-items:stretch}
  .nav-dd-trigger{width:100%;padding:12px 0;border-bottom:1px solid #f5f5f5}
  .nav-dd-menu{position:static;transform:none;min-width:auto;box-shadow:none;border:none;padding:0 0 0 16px;margin-top:0;border-radius:0}
  .nav-dd-menu::before{display:none}
  .nav-dd-menu a{padding:10px 0;border-bottom:1px solid #f0f0f0;font-size:.8rem}
  .nav-dropdown:hover .nav-dd-menu{display:none}
  .nav-dropdown.dd-open .nav-dd-menu,
  .nav-dropdown.dd-open .nav-dd-trigger{display:block;color:#111}
  .lang-switch{border-left:none;padding-left:0;margin-left:0;margin-top:8px}
  .products-grid{grid-template-columns:1fr 1fr}
  .advantages-grid,.footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-contact-matrix{grid-template-columns:1fr;gap:11px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .banner h1{font-size:1.4rem}
  .page-header h1{font-size:1.3rem}
  .section-title{font-size:1.2rem}
  .section,.about-preview,.products-overview,.core-advantages,.tech-section,.contact-section{padding:60px 0}
  .page-header{padding:100px 0 40px}
  .banner{padding:80px 0}
}
@media(max-width:480px){
  .products-grid{grid-template-columns:1fr}
  .eq-grid{grid-template-columns:1fr}
  .banner-stat-badges{flex-direction:column;align-items:center}
}

/* 2026-09-09 导航修复 v2: 不调小字体而是收紧项间距; 移除横向滑块;
   992px 以下(平板/小窗)直接汉堡菜单, 杜绝英文长菜单横向滚动 */
.navbar .container{flex-wrap:nowrap}
.navbar .logo{flex:0 0 auto;margin-right:6px}
.navbar .nav-links{flex-wrap:nowrap;overflow-x:visible;overflow-y:visible}
.navbar .nav-links a{white-space:nowrap}
/* 桌面 ≥993: 原字号(0.875rem基准)微调+间距收紧, 9项英文菜单放得下 */
@media (min-width:993px){
  .navbar .nav-links{gap:.15rem}
  .navbar .nav-links a{padding:6px 5px;font-size:.78rem}
  .navbar .nav-links .btn-quote{padding:7px 10px!important;margin-left:2px;font-size:.78rem!important}
}
/* 平板/小窗 769~992: 汉堡菜单代替横向滚动(无滑块) */
@media (min-width:769px) and (max-width:992px){
  .menu-toggle{display:flex}
  .navbar .nav-links{display:none;position:absolute;top:72px;left:0;width:100%;background:rgba(255,255,255,.98);backdrop-filter:blur(12px);flex-direction:column;padding:16px 20px;border-bottom:1px solid #eee;gap:0;overflow-x:visible;overflow-y:visible}
  .navbar .nav-links.open{display:flex}
  .navbar .nav-links a{padding:12px 0;border-bottom:1px solid #f5f5f5;width:100%;text-transform:none;letter-spacing:0;font-size:.9rem}
  .navbar .nav-links .btn-quote{margin-left:0!important;margin-top:4px;text-align:center;align-self:stretch}
  .nav-dropdown{flex-direction:column;width:100%;align-items:stretch}
  .nav-dd-trigger{width:100%;padding:12px 0;border-bottom:1px solid #f5f5f5}
  .nav-dd-menu{position:static;transform:none;min-width:auto;box-shadow:none;border:none;padding:0 0 0 16px;margin-top:0;border-radius:0}
  .nav-dd-menu::before{display:none}
  .nav-dd-menu a{padding:10px 0;border-bottom:1px solid #f0f0f0;font-size:.8rem}
  .nav-dropdown:hover .nav-dd-menu{display:none}
  .nav-dropdown.dd-open .nav-dd-menu,
  .nav-dropdown.dd-open .nav-dd-trigger{display:block;color:#111}
  .lang-switch{border-left:none;padding-left:0;margin-left:0;margin-top:8px}
}