/* ===== 4. 轮播（独立模块） ===== */
.banner-carousel{position:relative;width:100%;overflow:hidden;background:#0b2a4a;}
.banner-slides{display:flex;transition:transform 0.6s ease;}
.banner-slide{flex:0 0 100%;min-height:480px;display:flex;align-items:center;background-size:cover;background-position:center;position:relative;}
.banner-slide::after{content:'';position:absolute;inset:0;background:rgba(11,42,74,0.6);z-index:1;}
.banner-slide .hero-content{position:relative;z-index:2;max-width:1280px;margin:0 auto;padding:0 32px;width:100%;color:#ffffff;text-align:center;}
.hero-tag{background:rgba(245,158,11,0.15);color:#fbbf24;display:inline-block;padding:6px 18px;border-radius:30px;font-size:15px;font-weight:500;border:1px solid rgba(245,158,11,0.3);margin-bottom:18px;}
.hero-content h1{font-size:48px;font-weight:700;line-height:1.25;margin-bottom:22px;}
.hero-content h1 span{color:#fbbf24;}
.hero-content p{font-size:20px;color:#cbd5e1;margin-bottom:36px;max-width:820px;margin-left:auto;margin-right:auto;line-height:1.7;}
.hero-buttons{display:flex;gap:18px;flex-wrap:wrap;align-items:center;justify-content:center;}
.btn-primary{background:#f59e0b;color:#0b2a4a;padding:15px 40px;border-radius:40px;font-weight:700;text-decoration:none;transition:0.2s;display:inline-block;font-size:1rem;}
.btn-primary:hover{background:#fbbf24;transform:translateY(-2px);}
.btn-outline{border:2px solid #e2e8f0;color:white;padding:14px 38px;border-radius:40px;font-weight:600;text-decoration:none;transition:0.2s;display:inline-block;font-size:1rem;}
.btn-outline:hover{background:rgba(255,255,255,0.08);border-color:#f59e0b;}
.carousel-btn{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,0.2);backdrop-filter:blur(6px);color:#ffffff;border:none;font-size:42px;width:56px;height:56px;border-radius:50%;cursor:pointer;z-index:10;transition:all 0.25s ease;display:flex;align-items:center;justify-content:center;}
.carousel-btn:hover{background:rgba(255,255,255,0.45);}
.carousel-btn.prev{left:30px;}
.carousel-btn.next{right:30px;}
.carousel-dots{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);display:flex;gap:16px;z-index:10;}
.carousel-dots span{width:14px;height:14px;border-radius:50%;background:rgba(255,255,255,0.35);cursor:pointer;transition:all 0.25s ease;}
.carousel-dots span.active{background:#f59e0b;transform:scale(1.25);}

/* ===== 5. 行业解决方案（独立模块） ===== */
.solution-tabs{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:24px 0 32px;}
.solution-tab{background:#f1f5f9;color:#1e293b;border:1px solid #d0d8e0;padding:8px 24px;border-radius:40px;cursor:pointer;font-weight:600;font-size:15px;transition:all 0.25s ease;white-space:nowrap;}
.solution-tab.active{background:#0b2a4a;color:#ffffff;border-color:#0b2a4a;}
.solution-carousel{position:relative;margin:0 auto;}
.solution-prev,.solution-next{position:absolute;top:50%;transform:translateY(-50%);background:#ffffff;border:1px solid #e2e8f0;box-shadow:0 4px 16px rgba(0,0,0,0.06);width:48px;height:48px;border-radius:50%;font-size:35px;cursor:pointer;z-index:10;color:#0b2a4a;transition:all 0.25s ease;display:flex;align-items:center;justify-content:center;}
.solution-prev{left:-24px;}
.solution-next{right:-24px;}
.solution-prev:hover,.solution-next:hover{background:#f1f5f9;}
.solution-slides{display:flex;overflow:hidden;border-radius:24px;box-shadow:0 4px 16px rgba(0,0,0,0.06);background:#ffffff;min-height:340px;}
.solution-slide{flex:0 0 100%;min-width:100%;background:#ffffff;border:1px solid #edf2f7;opacity:0;transition:opacity 0.5s ease-in-out;display:none;flex-direction:column;padding:26px 30px 22px;}
.solution-slide.active{display:flex;opacity:1;}
.solution-slide-inner{display:flex;flex-wrap:wrap;align-items:center;gap:24px;flex:1;}
.solution-slide-text{flex:1.2;min-width:240px;}
.solution-slide-header{display:flex;align-items:center;gap:12px;margin-bottom:8px;}
.solution-slide-header img{width:42px;height:42px;object-fit:contain;}
.solution-slide-header h3{font-size:22px;font-weight:700;color:#0b2a4a;margin:0;}
.solution-slide-text p{color:#475569;font-size:15px;line-height:1.6;margin-bottom:12px;}
.solution-slide-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;}
.solution-slide-tags span{background:#f1f5f9;padding:4px 14px;border-radius:30px;font-size:12px;font-weight:500;color:#0b2a4a;}
.solution-slide-stats{display:flex;gap:24px;flex-wrap:wrap;}
.solution-slide-stats div span{font-weight:700;color:#0b2a4a;font-size:15px;}
.solution-slide-stats div{color:#94a3b8;font-size:13px;}
.solution-slide-image{flex:0.6;min-width:120px;display:flex;align-items:center;justify-content:center;background:#f8fafc;border-radius:14px; overflow: hidden;}
.solution-slide-image img{max-height:255px;object-fit:contain;border-radius:8px;}
.solution-slide-products{margin-top:20px;padding-top:20px;border-top:1px solid #edf2f7;display:flex;flex-wrap:wrap;gap:12px;}
.solution-slide-products>div{flex:1;min-width:120px;background:#f8fafc;border-radius:12px;padding:12px 10px;text-align:center;border:1px solid #edf2f7;}
.solution-slide-products>div div:first-child{font-weight:700;color:#0b2a4a;font-size:14px;}
.solution-slide-products>div div:last-child{font-size:11px;color:#475569;}
.solution-cta{text-align:center;margin-top:36px;}
.solution-cta a{display:inline-block;background:#0b2a4a;color:#ffffff;padding:12px 44px;border-radius:60px;font-weight:600;letter-spacing:1px;transition:all 0.25s ease;box-shadow:0 4px 12px rgba(11,42,74,0.25);}
.solution-cta a:hover{background:#1a3f62;}

/* ===== 6. 核心产品（独立模块） ===== */
.product-showcase{display:flex;flex-wrap:wrap;gap:30px;margin:0 auto;align-items:stretch;}
.product-tabs-panel{flex:1;min-width:280px;background:#f8fafc;border-radius:24px;padding:24px 16px;box-shadow:0 2px 8px rgba(0,0,0,0.04);border:1px solid #edf2f7;display:flex;flex-direction:column;}
.product-tabs-list{display:flex;flex-direction:column;gap:12px;}
.product-tab{display:flex;align-items:center;gap:16px;padding:14px 18px;border-radius:16px;cursor:pointer;transition:all 0.25s ease;background:#ffffff;border:1px solid #edf2f7;color:#1e293b;width:100%;text-align:left;}
.product-tab.active{background:#0b2a4a;color:#ffffff;border-color:#0b2a4a;}
.product-tab .icon-circle{width:44px;height:44px;background:#f1f5f9;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.product-tab.active .icon-circle{background:rgba(255,255,255,0.15);}
.product-tab .icon-circle img{width:32px;height:32px;object-fit:contain;}
.product-tab.active .icon-circle img{filter:brightness(0) invert(1);}
.product-tab .tab-text{flex:1;}
.product-tab .tab-text strong{display:block;font-weight:700;font-size:18px;}
.product-tab .tab-text span{font-size:14px;color:#94a3b8;}
.product-tab.active .tab-text span{color:rgba(255,255,255,0.8);}
.product-tab .arrow-icon{font-size:19px;color:#94a3b8;}
.product-tab.active .arrow-icon{color:#ffffff;}
.product-tabs-note{margin-top:auto;padding-top:20px;border-top:1px solid #edf2f7;text-align:center;}
.product-tabs-note p{font-size:14px;color:#94a3b8;}
.product-tabs-note .highlight-badge{background:#f59e0b;color:#0b2a4a;padding:2px 12px;border-radius:30px;font-weight:600;margin-right:6px;}
.product-image-panel{flex:1.8;min-width:320px;background:#f8fafc;border-radius:24px;overflow:hidden;border:1px solid #edf2f7;box-shadow:0 2px 8px rgba(0,0,0,0.04);display:flex;align-items:stretch;justify-content:stretch;position:relative;}
.product-image-container{width:100%;height:100%;max-height:465px;display:flex;align-items:stretch;justify-content:stretch;overflow:hidden;transition:opacity 0.3s ease;}
.product-image-container img{width:100%;height:auto;object-fit:cover;object-position:center top;display:block;}
.product-image-caption{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);background:rgba(11,42,74,0.75);color:#ffffff;padding:6px 22px;border-radius:40px;font-size:14px;font-weight:500;backdrop-filter:blur(4px);white-space:nowrap;}
.product-cta{text-align:center;margin-top:40px;}
.product-cta a{display:inline-block;background:#0b2a4a;color:#ffffff;padding:14px 48px;border-radius:60px;font-weight:600;letter-spacing:1px;box-shadow:0 4px 12px rgba(11,42,74,0.25);transition:all 0.25s ease;}
.product-cta a:hover{background:#1a3f62;}

/* ===== 7. 全系改性塑料粒子（独立模块） ===== */
#all-products{background:url('../img/all-bg1.png') no-repeat center center;background-size:cover;padding:80px 0;}
.grid-5{display:flex;flex-wrap:wrap;gap:16px;}
.grid-5 .card{flex:1 1 240px;min-width:240px;max-width:calc(16.666% - 14px);}
.card{background:rgba(255,255,255,0.75);padding:28px 20px;border-radius:18px;box-shadow:0 2px 8px rgba(0,0,0,0.04);transition:all 0.25s ease;border:1px solid #edf2f7;text-align:center;position:relative;}
.card:hover{transform:translateY(-5px);box-shadow:0 4px 16px rgba(0,0,0,0.06);border-color:#f59e0b;}
.card h3{font-size:18px;margin-bottom:8px;color:#0b2a4a;}
.card p{font-size:15px;color:#475569;line-height:1.6;}
.card .tag{display:inline-block;background:#f1f5f9;padding:4px 14px;border-radius:30px;font-size:13px;color:#1e293b;margin-top:10px;}

/* ===== 8. 关于我们（独立模块） ===== */
#about{background:url('../img/about-bg1.png') center/cover no-repeat;}
.about-wrap{display:flex;flex-wrap:wrap;gap:45px;align-items:center;}
.about-text{flex:2;min-width:320px;}
.about-text p{line-height:1.8;color:#334155;margin-bottom:18px;font-size:16px;}
.trust-badge{display:flex;flex-wrap:wrap;gap:16px;margin-top:24px;}
.trust-badge span{background:#ffffff;padding:8px 20px;border-radius:30px;border:1px solid #e2e8f0;font-size:15px;}
.about-side{flex:1;min-width:280px;background:#0b2a4a;color:#ffffff;padding:32px;border-radius:24px;background-image:url('img/com-1.png');background-repeat:no-repeat;background-position:100% 100%;background-size:cover;}
.about-side .year{font-size:45px;font-weight:700;color:#fbbf24;}

/* ===== 9. 服务流程（独立模块） ===== */
.process-wrap{display:flex;flex-wrap:wrap;gap:20px;}
.process-item{flex:1 1 160px;min-width:160px;text-align:center;padding:24px 12px;background:#ffffff;border-radius:18px;box-shadow:0 2px 8px rgba(0,0,0,0.04);border:1px solid #edf2f7;}
.process-item .num{width:44px;height:44px;border-radius:50%;background:#0b2a4a;color:#fbbf24;display:flex;align-items:center;justify-content:center;margin:0 auto 12px;font-weight:bold;font-size:19px;}
.process-item h4{color:#0b2a4a;margin-bottom:6px;font-size:16px;}
.process-item p{font-size:14px;color:#475569;}

/* ===== 10. 技术洞察（独立模块） ===== */
.insights-grid{display:flex;flex-wrap:wrap;gap:20px;margin:0 auto;}
.insight-card{flex:1 1 calc(50% - 10px);min-width:280px;background:#ffffff;border-radius:16px;overflow:hidden;border-left:5px solid #f59e0b;box-shadow:0 2px 8px rgba(0,0,0,0.04);transition:all 0.25s ease;display:flex;align-items:stretch;}
.insight-card:hover{transform:translateY(-4px);box-shadow:0 4px 16px rgba(0,0,0,0.06);}
.insight-card-image{flex:0 0 200px;min-height:200px;overflow:hidden;background:#f1f5f9;}
.insight-card-image img{width:100%;height:100%;object-fit:cover;transition:transform 0.3s ease;}
.insight-card:hover .insight-card-image img{transform:scale(1.05);}
.insight-card-content{flex:1;padding:24px 28px;display:flex;flex-direction:column;gap:12px;}
.insight-card-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;}
.insight-category{background:#f1f5f9;color:#0b2a4a;padding:4px 14px;border-radius:30px;font-size:12px;font-weight:600;}
.insight-date{color:#94a3b8;font-size:14px;}
.insight-card h4{font-size:18px;color:#0b2a4a;margin:0;line-height:1.4;}
.insight-card p{color:#475569;font-size:15px;line-height:1.7;margin:0;flex:1;}
.insight-card-footer{display:flex;justify-content:space-between;align-items:center;margin-top:4px;}
.insight-author{color:#94a3b8;font-size:14px;}
.insight-link{color:#f59e0b;font-weight:600;font-size:14px;transition:color 0.25s ease;}
.insight-link:hover{color:#fbbf24;}
.insights-view-all{text-align:center;margin-top:30px;}
.insights-view-all button{background:#ffffff;color:#0b2a4a;border:1.5px solid #0b2a4a;padding:10px 36px;border-radius:40px;font-weight:600;font-size:15px;cursor:pointer;transition:all 0.25s ease;}
.insights-view-all button:hover{background:#0b2a4a;color:#ffffff;}

/* ===== 11. FAQ 常见问题（独立模块） ===== */
.faq-grid{display:flex;flex-wrap:wrap;gap:16px;margin:0 auto;align-items:flex-start;}
.faq-item{flex:1 1 calc(50% - 8px);min-width:280px;background:#ffffff;border-radius:16px;border:1px solid #edf2f7;overflow:hidden;transition:all 0.25s ease;box-shadow:0 2px 8px rgba(0,0,0,0.04);}
.faq-item:hover{border-color:#d0d8e0;box-shadow:0 4px 16px rgba(0,0,0,0.06);}
.faq-item.active{border-color:#f59e0b;box-shadow:0 4px 20px rgba(245,158,11,0.15);}
.faq-question{width:100%;display:flex;align-items:center;gap:14px;padding:18px 22px;background:transparent;border:none;text-align:left;cursor:pointer;transition:all 0.25s ease;}
.faq-question:hover{background:#f8fafc;}
.faq-q-icon{flex-shrink:0;width:32px;height:32px;border-radius:8px;background:#0b2a4a;color:#f59e0b;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;}
.faq-q-text{flex:1;font-size:16px;font-weight:600;color:#0b2a4a;line-height:1.5;}
.faq-arrow{flex-shrink:0;font-size:19px;color:#94a3b8;transition:transform 0.3s ease;}
.faq-item.active .faq-arrow{transform:rotate(180deg);color:#f59e0b;}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.4s ease,padding 0.3s ease;padding:0 22px;}
.faq-item.active .faq-answer{max-height:400px;padding:0 22px 20px 22px;}
.faq-a-inner{display:flex;gap:14px;align-items:flex-start;padding-top:14px;border-top:1px dashed #edf2f7;}
.faq-a-icon{flex-shrink:0;width:32px;height:32px;border-radius:8px;background:#f59e0b;color:#0b2a4a;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;}
.faq-a-inner p{margin:0;color:#475569;font-size:15px;line-height:1.7;flex:1;min-height:52px;}

/* ===== 15. 响应式（公共） ===== */
@media (max-width:992px){
.container{padding:0 24px;}
.nav .container{padding:8px 24px;}
.banner-slide .hero-content{padding:0 24px;}
.solution-prev{left:8px;}
.solution-next{right:8px;}
.grid-5 .card{max-width:calc(25% - 12px);}
}

@media (max-width:768px){
.container{padding:0 20px;}
.nav .container{padding:8px 20px;}
.banner-slide{min-height:380px;}
.banner-slide .hero-content{padding:0 20px;}
.hero-content h1{font-size:29px;}
.hero-content p{font-size:17px;}
.carousel-btn{width:44px;height:44px;font-size:29px;}
.carousel-btn.prev{left:12px;}
.carousel-btn.next{right:12px;}
.nav-links{gap:4px;}
.nav-links>li>a{font-size:13px;padding:6px 10px;}
.nav-links .dropdown-menu{min-width:160px;left:-10px;}
.contact-top{font-size:12px;gap:6px;}
.section-block{padding:45px 0;}
.section-title-wrapper h2{font-size:29px;}
.solution-prev,.solution-next{width:36px;height:36px;font-size:26px;}
.solution-slide{padding:16px 14px 12px;}
.solution-slide-products>div{min-width:calc(50% - 6px);}
.solution-slide-text{min-width:140px;}
.solution-slide-image{min-width:70px;}
.insight-card{flex:1 1 100%;}
.insight-card{padding:20px 22px;}
.insight-card h4{font-size:17px;}
.insight-card p{font-size:14px;}
.faq-item{flex:1 1 100%;}
.faq-question{padding:16px 18px;gap:12px;}
.faq-q-icon,.faq-a-icon{width:28px;height:28px;font-size:14px;}
.faq-q-text{font-size:15px;}
.faq-a-inner p{font-size:14px;}
.faq-item.active .faq-answer{padding:0 18px 16px 18px;}
.grid-5 .card{max-width:calc(50% - 8px);}
.insight-card{flex-direction:column;}
.insight-card-image{flex:0 0 180px;width:100%;min-height:180px;}
.insight-card-content{padding:20px 22px;}
.insight-card h4{font-size:17px;}
.insight-card p{font-size:14px;}
}

@media (max-width:600px){
.cookie-float{padding:16px 18px;flex-direction:column;gap:12px;text-align:center;}
.cookie-float .cookie-text{justify-content:center;}
.cookie-float .cookie-actions{justify-content:center;}
.grid-5 .card{max-width:100%;}
}