/* index */
.search-wrap{
  position: relative;
}


.search-box{
  position: relative;
  margin-bottom: 12px; 
}


.search-input{
  width:100%;
  height:65px;
  padding:0 150px 0 25px;
  font-size:16px;
  border-radius:40px;
  border:0;
  outline:none;
  background:#fff;
  box-shadow:0 8px 30px rgba(0,0,0,.12);
  transition: box-shadow 0.2s;
}

/* focus */
.search-input:focus{
  box-shadow:0 8px 30px rgba(0,0,0,.18);
}


.search-btn{
  position:absolute;
  right:8px;
  top:7px;
  height:46px;
  padding:0 26px;
  border-radius:30px;
  border:none;
  background:#FF0000;
  color:#fff;
  font-weight:600;
  cursor:pointer;
}



  .reviews-container {
    margin: 0 auto; /* 左右自动外边距 */
    width: 100%;
    max-width: 1260px;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    
  }
  .reviews-card {
    background: #fff;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }
  .reviews-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
  }
  .reviews-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #ccc;
  }
  .reviews-name {
    font-weight: bold;
  }
  .reviews-stars {
    margin: 6px 0;
  }
  .reviews-company {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 15px;
    font-size: 14px;
    opacity: 0.7;
  }
  .reviews-reviews-company-logo {
    width: 30px;
    height: 30px;
    background: #ddd;
    border-radius: 5px;
  }
  
  .reviews-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:12px;
  font-size:13px;
  color:#666;
}

.reviews-country{
  display:flex;
  align-items:center;
  gap:6px;
}

.reviews-country img{
  width:20px;
  height:auto;
  display:block;
  border-radius:2px;
}

.reviews-stars {
  display: flex;
  gap: 2px;
  margin-top: 4px;
}

.reviews-stars svg {
  width: 14px;
  height: 14px;
  fill: #FFC107; /* 星星黄色 */
}
  /* 响应式优化 */
  @media (max-width: 768px) {
  .reviews-container {
    grid-template-columns: 1fr; /* 手机只显示一列 */
  }
}




.hero-bg{
    position:relative;
    height:520px;
    background:url(https://www.foursemi.com/uploads/allimg/20250919/0cd0a963b5e2bbcba1ca9f50dd5023cb.jpg) center/cover no-repeat;
    background-color:#000;
    display:flex;
    align-items:center;
    justify-content:center;
    text-align:center;
}

.hero-content{
    position:relative;
    z-index:2;
}

.hero-content h1{
    font-size:40px;
    color:#fff;
    font-weight:700;
    letter-spacing:1px;
}


.hero-content p{
    color:#d0d0d0;
    font-size:20px;
}

/* 渐变融合关键 */
.hero-fade{
    position:absolute;
    bottom:0;
    left:0;
    width:100%;
    height:180px;
    background:linear-gradient(to bottom, rgba(0,0,0,0) 0%, #000 100%);
}

/* ===== 下方黑色区 ===== */
.cx-contact-dark{
    background:#000000;
    padding:80px 0 140px;
}

.cx-container{
    max-width:1330px;
    margin:0 auto;
    padding:0 20px;
}

.cx-main{
    display:flex;
    gap:70px;
    margin-top:-120px; /* 向上融合 */
}

/* 卡片 */
.info-box,
.form-box{
    background:#0b0b0b;
    border-radius:20px;
    padding:70px;
    border:1px solid rgba(255,255,255,0.08);
    box-shadow:0 40px 100px rgba(0,0,0,0.9);
}

.cx-left{width:40%;}
.cx-right{width:60%;}

/* 左侧 */
.cx-item{
    margin-bottom:45px;
}

.cx-item span{
    font-size:12px;
    color:#888;
    text-transform:uppercase;
}

.cx-item h3{
    font-size:26px;
    color:#fff;
    margin:10px 0;
}

.cx-item p{color:#9a9a9a;}

.blue,
.highlight h3{color:#FF0000;}

/* 表单 */
.form-box h2{
    color:#fff;
    font-size:34px;
}

.sub{color:#999;margin-bottom:30px;}

.grid{
    display:flex;
    gap:18px;
    margin-bottom:18px;
}

.cx-form input,
.cx-form textarea{
    width:100%;
    padding:18px;
    background:#000;
    border:1px solid #1f1f1f;
    border-radius:10px;
    color:#fff;
}

.cx-form textarea{
    height:170px;
    margin-bottom:25px;
}

.cx-form input:focus,
.cx-form textarea:focus{
    border-color:#FF0000;
    outline:none;
    box-shadow:0 0 0 1px #FF0000;
}

.btn-submit{
    background:#FF0000;
    color:#fff;
    border:none;
    padding:18px 60px;
    border-radius:12px;
    font-size:16px;
    cursor:pointer;
}



/* 手机 */
@media(max-width:768px){

.hero-bg{height:380px;}

.hero-content h1{font-size:38px;}

.cx-main{
    flex-direction:column;
    margin-top:-80px;
}

.cx-left,.cx-right{width:100%;}

.info-box,.form-box{padding:35px 22px;}

.grid{flex-direction:column;}
}


/* ===== 顶部背景 ===== */
.rfq-hero{
height:600px;
background:url("/uploads/allimg/20260210/1-260210004512193.jpg") center/cover no-repeat;
position:relative;
}
.hero-overlay{
background:linear-gradient(to bottom,rgba(0,0,0,0.55),#000000 85%);
height:100%;
}
.hero-inner{
max-width:1300px;
margin:auto;
padding-top:150px;
color:#fff;
}
.hero-inner h1{
font-size:42px;
font-weight:700;
margin-bottom:10px;
color:#cfcfcf;
}
.hero-inner p{
color:#cfcfcf;
font-size:18px;
}

/* ===== 主体 ===== */
.rfq-section{
background:#000000;
padding:80px 20px;
}
.rfq-container{
    max-width:1300px;
    margin:auto;
    background:rgba(0,0,0,0.95);
    border:1px solid #222;
    border-radius:14px;
    padding:55px;
    box-shadow:0 0 60px rgba(0,0,0,0.6);
    color:#fff;
}

/* 标题 */
.rfq-header{
text-align:center;
margin-bottom:40px;
}
.rfq-header h2{
font-size:32px;
margin-bottom:10px;
color:#bfbfbf;
}
.rfq-header p{
color:#bfbfbf;
}

/* 表格 */
.rfq-table-box{
    background:linear-gradient(145deg,#0a0a0a,#000000);
    border:1px solid #222;
    border-radius:14px;
    padding:28px;
    box-shadow:0 0 0 rgba(0,0,0,0);
    transition:0.35s;
}
.rfq-table-box:hover{
border-color:#FF0000;
box-shadow:0 0 35px rgba(255,0,0,0.12);
}

table{
width:100%;
border-collapse:collapse;
margin-bottom:20px;
border-radius:10px;
overflow:hidden;
}
th{
background:#0f0f0f;
padding:14px;
border:1px solid #222;
font-weight:600;
font-size:14px;
letter-spacing:0.5px;
color:#fff !important;
}
td{
border:1px solid #222;
background:#151515;
transition:0.2s;
color:#fff;
}
tr:hover td{
background:#1a1a1a;
}
td input{
width:100%;
padding:12px;
background:#0b0b0b;
border:1px solid #333;
color:#fff;
border-radius:6px;
transition:0.25s;
}
td input:focus{
border-color:#FF0000;
box-shadow:0 0 8px rgba(255,0,0,0.35);
background:#0b0b0b;
}

/* Add More Line 按钮 */
.add-row{
    margin-top:18px;
    border-radius:8px;
    padding:12px 20px;
    background:#FF0000;
    color:#fff;
    border:1px solid #990000;
    cursor:pointer;
    font-weight:600;
    transition:0.3s;
}
.add-row:hover{
    background:linear-gradient(90deg,#FF4444,#990000);
    color:#fff;
    border-color:#FF0000;
}

/* 删除按钮 */
.remove{
background:#FF0000;
border:none;
color:#fff;
padding:8px 14px;
cursor:pointer;
}

/* 上传 */
.bom-upload{
margin-top:45px;
background:linear-gradient(145deg,#111,#0a0a0a);
border:1px solid #222;
border-radius:14px;
padding:30px 35px;
transition:0.3s;
}
.bom-upload:hover{
border-color:#FF0000;
box-shadow:0 0 25px rgba(255,0,0,0.15);
}

.upload-inner{
display:flex;
justify-content:space-between;
align-items:center;
flex-wrap:wrap;
gap:20px;
}
.upload-left{
display:flex;
align-items:center;
gap:18px;
}
.upload-icon{
font-size:42px;
background:linear-gradient(145deg,#FF0000,#990000); 
width:64px;
height:64px;
display:flex;
align-items:center;
justify-content:center;
border-radius:12px;
}
.upload-text h3{
margin:0;
font-size:20px;
color:#fff;
}
.upload-text p{
margin:3px 0 0;
color:#9aa0a6;
font-size:14px;
}
.upload-btn{
background:linear-gradient(90deg,#FF0000,#990000);
padding:14px 28px;
border-radius:8px;
cursor:pointer;
font-weight:600;
color:#000;
position:relative;
overflow:hidden;
}
.upload-btn input{
position:absolute;
opacity:0;
cursor:pointer;
left:0;
top:0;
width:100%;
height:100%;
}
.upload-tips{
margin-top:18px;
display:flex;
gap:25px;
flex-wrap:wrap;
font-size:13px;
color:#8b949e;
align-items:center;
}
.upload-tips a{
color:#FF0000;
text-decoration:none;
font-weight:600;
}
.upload-filename{
margin-top:8px;
color:#FF0000;
font-size:14px;
}
.upload-filename b{
color:#fff;
font-weight:600;
}

/* 联系 */
.contact-grid{
display:grid;
grid-template-columns:repeat(2,1fr);
gap:20px;
margin-top:30px;
}
.contact-grid input,
textarea{
width:100%;
padding:14px;
background:#0f0f0f;
border:1px solid #333;
color:#fff;
border-radius:8px;
transition:0.3s;
}
.contact-grid input:focus,
textarea:focus{
border-color:#FF0000;
box-shadow:0 0 10px rgba(255,0,0,0.25);
background:#0b0b0b;
}
textarea{
margin-top:20px;
min-height:120px;
}
input::placeholder,textarea::placeholder{
color:#888;
}

/* 提交按钮 */
.submit-btn{
    margin-top:35px;
    background:linear-gradient(90deg,#FF0000,#990000);
    border: none;
    outline: none;
    border-radius:10px;
    font-size:18px;
    padding:18px 60px;
    box-shadow:0 10px 40px rgba(255,0,0,0.35);
    transition:0.3s;
}
.submit-btn:hover{
    transform:translateY(-2px);
    box-shadow:0 14px 50px rgba(255,0,0,0.5);
}

/* why模块 */
.why-box{
display:grid;
grid-template-columns:repeat(3,1fr);
gap:25px;
margin-top:60px;
}
.why-item{
background:#111;
padding:30px;
border-radius:10px;
border:1px solid #222;
text-align:center;
transition:0.3s;
}
.why-item:hover{
border-color:#FF0000;
box-shadow:0 0 30px rgba(255,0,0,0.12);
}
.why-item h3{
margin-bottom:10px;
color: #cfcfcf;
}

/* 手机 */
@media(max-width:768px){
.hero-inner{
padding:120px 20px 0;
}
.hero-inner h1{
font-size:28px;
}
.rfq-container{
padding:25px;
}
.contact-grid{
grid-template-columns:1fr;
}
.why-box{
grid-template-columns:1fr;
}

/* 表格手机端自适应 */
.rfq-table-box{
    overflow-x:hidden;
    padding:15px; 
}
  /* 原来的表格自适应 */
    #rfqTable, #rfqTable thead, #rfqTable tbody, #rfqTable th, #rfqTable td, #rfqTable tr {
        display: block;
    }
    #rfqTable thead tr {
        display: none;
    }
    #rfqTable tbody tr {
        margin-bottom:20px;
        border:1px solid #222;
        border-radius:10px;
        padding:12px;
        background:#151515;
    }
    #rfqTable td {
        display: flex;
        justify-content: space-between;
        padding:8px 12px;
        border:none;
        border-bottom:1px solid #222;
        position: relative;
    }
    #rfqTable td:last-child {
        border-bottom:none;
    }
    #rfqTable td:before {
        content: attr(data-label);
        color:#888;
        font-weight:600;
        width:45%;
        flex-shrink:0;
    }
    #rfqTable td input {
        flex:1;
        margin-left:10px;
    }
    #rfqTable button.remove {
        flex:0 0 auto;
        margin-left:10px;
    }

}

/* 禁用所有 input 和 textarea 的默认蓝色 outline */
input:focus,
textarea:focus,
#rfqTable input:focus {
    outline: none;
}


 .container0123 {
            max-width: 1290px;
            background-color: white;
            padding: 40px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            display: flex;
            flex-wrap: wrap;
           margin: auto; 
        }

        .form-container, .info-container {
            flex: 1;
            padding: 20px;
            box-sizing: border-box;
        }

        .form-container {
            border-right: 1px solid #e0e0e0;
        }

        .form-container h2, .info-container h2 {
            margin-top: 0;
            margin-bottom: 20px;
            font-size: 24px;
            color: #333;
        }

        .form-group {
            margin-bottom: 15px;
        }

        .form-group label {
            display: block;
            margin-bottom: 5px;
            color: #333;
        }

        .form-group input[type="text"],
        .form-group input[type="email"],
        .form-group input[type="tel"],
        .form-group input[type="url"] {
            width: 100%;
            padding: 10px;
            border: 1px solid #ccc;
            border-radius: 4px;
            box-sizing: border-box;
        }

        .form-group input[type="submit"] {
            background-color: #FE0002;
            color: white;
            border: none;
            border-radius: 4px;
            padding: 10px 15px;
            cursor: pointer;
            font-size: 16px;
        }

        .form-group input[type="submit"]:hover {
            background-color: #0056b3;
        }

        .radio-group {
            display: flex;
            align-items: center;
        }

        .radio-group label {
            margin-right: 10px;
        }

        .radio-group input {
            margin-right: 5px;
        }

        .info-container ul {
            list-style-type: none;
            padding: 0;
            margin: 0;
        }

        .info-container ul li {
            margin-bottom: 20px;
            position: relative;
            padding-left: 25px;
        }

        .info-container ul li strong {
            display: block;
            font-size: 18px;
            color: #333;
            margin-bottom: 5px;
        }

        .info-container ul li::before {
            content: '•';
            color: #FE0002;
            position: absolute;
            left: 0;
            top: 0;
            font-size: 24px;
            line-height: 1;
        }

        .info-container ul li p {
            margin: 0;
            font-size: 16px;
            color: #555;
        }

        @media (max-width: 768px) {
            .container {
                flex-direction: column;
            }

            .form-container {
                border-right: none;
                border-bottom: 1px solid #e0e0e0;
                padding-bottom: 20px;
                margin-bottom: 20px;
            }

            .info-container {
                padding-top: 20px;
            }
        }
        
        
        .video-thumb {
    position: relative;
    cursor: pointer;
    overflow: hidden;
}

.video-thumb img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.video-thumb:hover img {
    transform: scale(1.05);
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 48px;
    height: 48px;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.play-btn::before {
    content: '';
    width: 0;
    height: 0;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
    border-left: 14px solid #fff;
    display: inline-block;
}

				.pagelist1 {
    text-align: center;
    margin: 40px 0;
    
}

.pagelist1 ul {
    display: inline-flex;
    flex-wrap: wrap;
    padding: 0;
    list-style: none;
    gap: 10px;
}

.pagelist1 li {
    display: inline-block;
}

/* 翻页链接样式 */
.pagelist1 a {
    display: inline-block;
    min-width: 42px;
    padding: 10px 15px;
    text-align: center;
    color: #FFffff;
    background: #111722;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
   
}

/* hover 效果 */
.pagelist1 a:hover {
    background: #FF0000;
    color: #111722;
    box-shadow: 0 0 20px rgba(255, 0, 0, 0.6);
    transform: translateY(-3px);
}

/* 当前页高亮 */
.pagelist1 span.current {
    display: inline-block;
    min-width: 42px;
    padding: 0px 0px;
    text-align: center;
    background: #00ffd0;
    color: #111722;
    border-radius: 8px;
    font-weight: 700;
    box-shadow: 0 0 15px rgba(0, 255, 208, 0.5);
}

/* 前一页 / 下一页样式 */
.pagelist1 a.pre,
.pagelist1 a.next {
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
}

/* 移动端自适应 */
@media(max-width:600px){
    .pagelist1 a, .pagelist1 span.current {
        min-width: 36px;
        padding: 8px 12px;
        font-size: 14px;
    }
}

/* ================== Videos Page ================== */
.videos-page {
    background: #000000;
    color: #fff;
    font-family: Arial, Helvetica, sans-serif;
}

/* ================== HERO ================== */
.videos-hero {
    position: relative;
    background: url(/uploads/allimg/20260210/1-2602101040244S.jpg) center/cover no-repeat;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.hero-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0,0,0,0.1) 0%, #000000 90%);
}
.hero-content {
    position: relative;
    max-width: 900px;
    padding: 20px;
}
.hero-content h1 {
    font-size: 46px;
    margin-bottom: 15px;
    color: #FFFFFF;
}
.hero-content p {
    color: #FFFFFF;
    font-size: 18px;
}

/* ================== INTRO ================== */
.videos-intro {
    max-width: 900px;
    margin: 60px auto 20px;
    text-align: center;
    padding: 0 20px;
}
.videos-intro h2 {
    font-size: 28px;
    margin-bottom: 15px;
    color: #FFFFFF;
}
.videos-intro p {
    color: #FFFFFF;
    line-height: 1.7;
}

/* ================== CONTAINER ================== */
.videos-container {
    max-width: 1330px;
    margin: auto;
    padding: 0px 20px 40px;
}

/* ================== GRID ================== */
.videos-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 50px;
}

/* ================== VIDEO CARD ================== */
.video-card {
    background: #111722;
    border-radius: 14px;
    padding: 18px;
    transition: .3s;
    width: 100%;
    box-sizing: border-box;
}
.video-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 0 35px rgba(0,255,200,0.08);
}

/* ================== THUMBNAIL ================== */
.thumb {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
}
.thumb img {
    width: 100%;
    height: auto;
    display: block;
    transition: .3s;
}
.video-card:hover .thumb img {
    transform: scale(1.05);
    opacity: 0.85;
}

/* ================== PLAY BUTTON ================== */
.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90px;
    height: 90px;
    min-width: 50px;
    min-height: 50px;
    border-radius: 50%;
    background: rgba(255,0,0,0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 0 15px rgba(255,0,0,0.9);
    z-index: 10;
    transition: .3s;
}
.thumb:hover .play-button {
    background: #ff0000;
    box-shadow: 0 0 30px rgba(255,255,255,0.7);
}

/* 三角形 */
.triangle {
    width: 0;
    height: 0;
    border-left: 30px solid #ffffff;
    border-top: 18px solid transparent;
    border-bottom: 18px solid transparent;
    margin-left: 5px;
    transition: .3s;
}
.thumb:hover .triangle {
    border-left-color: #000;
}

/* ================== TEXT ================== */
.video-card h3 {
    margin: 15px 0 10px;
    font-size: 20px;
    color: #ffffff;
}
.video-card p {
    color: #a9b4c2;
    font-size: 15px;
}

/* ================== MOBILE ================== */
@media(max-width:900px) {
    .videos-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .hero-content h1 {
        font-size: 32px;
    }
    .videos-hero {
        height: 320px;
    }
    .play-button {
        width: 60px;
        height: 60px;
    }
    .triangle {
        border-left: 18px solid #00ffd0;
        border-top: 10px solid transparent;
        border-bottom: 10px solid transparent;
    }
}


.container {
    max-width: 1330px;
    margin: 0 auto;
    padding: 0 20px;
}

.ptb-100 {
    padding: 80px 0;
}

.gray-light-bg {
    background: #f7f8fa;
}

.category-row {
    display: flex;
    align-items: flex-start;
    padding: 35px 0;
    border-bottom: 1px solid #e5e5e5;
}

/* 左侧 */
.category-left {
    width: 32%;
}

/* 图标 + 标题 */
.category-title {
    display: flex;
    align-items: center;
    gap: 12px;
}

.category-title img {
    width: 30%;
    height: 30%;
}

.category-title h2 {
    font-size: 22px;
    font-weight: 600;
    margin: 0;
}

/* 右侧 */
.category-right {
    width: 68%;
    padding-left: 120px;   /* 重点：左右拉开距离 */
}

.category-right ul {
    list-style: none;
    padding: 0;
    margin: 0;

    /* 重点：单个 UL 分多列 */
    column-count: 2;
    column-gap: 80px;
}

.category-right li {
    margin-bottom: 12px;
    break-inside: avoid;
}

.category-right a {
    font-size: 15px;
    color: #333;
    text-decoration: none;
}

.category-right a:hover {
    color: #e60012;
}

/* 手机端 */
@media (max-width: 768px) {
    .category-row {
        flex-direction: column;
    }

    .category-left {
        width: 100%;
        margin-bottom: 15px;
    }

    .category-right {
        width: 100%;
        padding-left: 0;
    }

    .category-right ul {
        column-count: 1;
    }
}

.pagelist ul{text-align:center;margin:20px 0;}
				.pagelist li{display:inline-block;margin:0 2px;}
				.pagelist li a{color:#666;display:inline-block;border:1px solid #ddd;padding:6px 15px;}
				.pagelist li a:hover{border-color:#000000;background:#000000;color:#fff;}
				.pagelist li.active a{border-color:#000000;background:#000000;color:#fff;}
				
				         
.product-section .container {
    max-width: 1320px;
}


.product-list {
    display: flex;
    flex-wrap: wrap;
    margin-top: 30px;
}


.col-product {
    width: 20%;
    padding: 15px;
    box-sizing: border-box;
}


.product-card {
    height: 100%;
    background: #fff;
    border: 1px solid #eee;
    border-radius: 6px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.product-card:hover {
    box-shadow: 0 6px 18px rgba(0,0,0,0.08);
    transform: translateY(-3px);
}


.product-img {
    width: 100%;
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    overflow: hidden;
}

.product-img img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}


.product-title {
    font-size: 14px;
    font-weight: 600;
    color: #222;
    line-height: 1.4;
    margin-bottom: 10px;
    min-height: 40px;
}


.product-desc {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
    min-height: 60px;
}


.product-btn {
    display: inline-block;
    padding: 6px 16px;
    border: 1px solid #333;
    color: #333;
    font-size: 13px;
    border-radius: 4px;
    text-decoration: none;
    transition: all 0.3s;
}

.product-btn:hover {
    background: #333;
    color: #fff;
}
@media (max-width: 991px) {
    .col-product {
        width: 50%;
    }
}


@media (max-width: 575px) {
    .col-product {
        width: 100%;
    }

    .product-img {
        height: 140px;
    }
}


.page-container {
  max-width: 1330px;
  margin: 0 auto;
  margin-top: 20px;
  padding: 20px;
  background: #fff;
  border-radius: 20px;
}

/* ===== Header ===== */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.page-header h1 {
  font-size: 18px;
  margin: 0;
}



/* ===== Alphabet Nav ===== */
.alphabet-nav {
  display: flex;
  justify-content: center;   /* 关键：整体居中 */
  flex-wrap: wrap;
  gap: 14px;                 /* 字母间距 */
  padding: 15px 0;
  border-bottom: 1px solid #e5e7eb;
  margin-bottom: 25px;
}


.alphabet-nav a {
  font-size: 14px;
  color: #000000;
  text-decoration: none;
  cursor: pointer;
}

.alphabet-nav a:hover {
  text-decoration: underline;
}

/* ===== Letter Group ===== */
.letter-group {
  margin-bottom: 40px;
}

.letter-group h2 {
  font-size: 18px;
  margin-bottom: 20px;
  padding-bottom: 8px;
  border-bottom: 1px solid #e5e7eb;
}

/* ===== Manufacturer List ===== */
.manufacturer-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  column-gap: 40px;
  row-gap: 12px;
}

.manufacturer-list a {
  font-size: 14px;
  color: #000000;
  text-decoration: none;
  white-space: nowrap;
}

.manufacturer-list a span {
  color: #2563eb;
}

.manufacturer-list a:hover {
  text-decoration: underline;
  color: #000000;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .manufacturer-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .manufacturer-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .manufacturer-list {
    grid-template-columns: 1fr;
  }
}

  .certification-section {
        position: relative;
    }
    
   .certification-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;

    margin-top: 80px;      /* 相对位置，不跑位 */
    margin-bottom: 40px;

    padding: 0 15px;
}

.certification-logos img {
    max-width: 100px;
    width: 100%;
    height: auto;
}
        @media (max-width: 768px) {
        .certification-logos {
            top: 15px;
            gap: 12px;
        }
    
        .certification-logos img {
            max-width: 70px;
        }
    }
    
    @media (max-width: 480px) {
        .certification-logos {
            flex-wrap: wrap;   /* 防止挤出 */
        }
    
        .certification-logos img {
            max-width: 60px;
        }
    }
    
    .container0123 {
    max-width: 1290px;
    background-color: white;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-wrap: wrap;
    margin: auto; 
}

.form-container, .info-container {
    flex: 1;
    padding: 20px;
    box-sizing: border-box;
}



.form-container h2, .info-container h2 {
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 24px;
    color: #333;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: #333;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="url"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

.form-group input[type="submit"] {
    background-color: #FE0002;
    color: white;
    border: none;
    border-radius: 4px;
    padding: 10px 15px;
    cursor: pointer;
    font-size: 16px;
}

.form-group input[type="submit"]:hover {
    background-color: #0056b3;
}

.radio-group {
    display: flex;
    align-items: center;
}

.radio-group label {
    margin-right: 10px;
}

.radio-group input {
    margin-right: 5px;
}

.info-container ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.info-container ul li {
    margin-bottom: 20px;
    position: relative;
    padding-left: 25px;
}

.info-container ul li strong {
    display: block;
    font-size: 18px;
    color: #333;
    margin-bottom: 5px;
}

.info-container ul li::before {
    content: '•';
    color: #FE0002;
    position: absolute;
    left: 0;
    top: 0;
    font-size: 24px;
    line-height: 1;
}

.info-container ul li p {
    margin: 0;
    font-size: 16px;
    color: #555;
}

@media (max-width: 768px) {
    .container0123 {
        flex-direction: column;
    }

    .form-container {
        border-right: none;
       
        padding-bottom: 20px;
        margin-bottom: 20px;
    }

    .info-container {
        padding-top: 20px;
    }
}

.video-detail-page {
    
    color: #fff;
    background: #000000;
}

/* HERO */
.video-hero {
    position: relative;
    background: url(/uploads/allimg/20260210/1-2602101040244S.jpg) center/cover no-repeat;
    height: 450px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.hero-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0,0,0,0.2) 0%, #000000 90%);
}
.hero-content {
    position: relative;
    max-width: 900px;
    padding: 20px;
}
.hero-content h1 {
    font-size: 42px;
    margin-bottom: 15px;
    color: #ffffff;
}
.hero-content p {
    font-size: 18px;
    color: #cfd8e3;
}

/* VIDEO PLAYER */
.video-player-wrapper {
    max-width: 900px;
    margin: 40px auto;
    position: relative;
}
.video-frame {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    border-radius: 12px;
    overflow: hidden;
}
.video-frame iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.video-frame .triangle {
    width: 0;
    height: 0;
    border-left: 30px solid #00ffd0;
    border-top: 18px solid transparent;
    border-bottom: 18px solid transparent;
    margin-left: 5px;
}
.video-frame:hover .triangle {
    border-left-color: #000;
}

/* VIDEO INFO */
.video-info {
    max-width: 900px;
    margin: 40px auto;
    padding: 0 20px;
}
.video-info h2 {
    font-size: 26px;
    margin-bottom: 15px;
    color: #ffffff;
}
.video-info p {
    font-size: 16px;
    color: #aab4c3;
    line-height: 1.6;
    margin-bottom: 20px;
}
.video-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
}
.video-meta span {
    font-size: 14px;
    color: #a9b4c2;
}

/* CTA */
.cta-button {
    display: inline-block;
    padding: 15px 30px;
    background: #FF0000;
    color: #ffffff;
    font-weight: 700;
    text-decoration: none;
    border-radius: 8px;
    transition: .3s;
}
.cta-button:hover {
    background: #FFffff;
    color: #FF0000;
}

/* RELATED VIDEOS */
.related-videos {
    max-width: 1330px;
    margin: 0px auto;
    padding: 0 20px;
    
}
.related-videos h2 {
    font-size: 26px;
    margin-bottom: 30px;
    color: #ffffff;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.related-grid .video-card {
    background: #111722;
    border-radius: 12px;
    overflow: hidden;
    transition: .3s;
}
.related-grid .video-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 0 25px rgba(255,0,0,0.5);
}
.related-grid .video-card img {
    width: 100%;
    display: block;
}
.related-grid .video-card h3 {
    font-size: 16px;
    padding: 10px;
    color: #fff;
    text-align: center;
}
/* MOBILE */
@media(max-width:1024px){
    .related-grid {
        grid-template-columns: repeat(2,1fr);
    }
}
@media(max-width:768px){
    .video-hero {height: 320px;}
    .hero-content h1 {font-size: 28px;}
    .hero-content p {font-size: 14px;}
    .video-frame .play-button {width: 60px; height: 60px;}
    .video-frame .triangle {border-left: 18px solid #00ffd0; border-top: 10px solid transparent; border-bottom: 10px solid transparent;}
    .related-grid {grid-template-columns: 1fr;}
}