*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",sans-serif;font-size:14px;line-height:1.7;color:#333;background:#fff}
a{color:#4A5568;text-decoration:none;transition:color .2s}
a:hover{color:#2D3748}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 15px}

/* Top Bar */
.top-bar{background:#F7FAFC;border-bottom:1px solid #EDF2F7;font-size:13px;color:#718096}
.top-bar-inner{display:flex;justify-content:space-between;align-items:center;height:36px}
.top-bar a{color:#4A5568;font-weight:500}
.top-bar a:hover{color:#2D3748}

/* Header */
.header{background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.08);position:sticky;top:0;z-index:100}
.header-inner{display:flex;justify-content:space-between;align-items:center;height:70px}
.logo-text{font-size:24px;font-weight:700;color:#2D3748;letter-spacing:1px}
.nav ul{display:flex;align-items:center;gap:2px}
.nav a{display:block;padding:8px 18px;color:#4A5568;font-size:15px;border-radius:2px}
.nav a:hover{color:#2D3748;background:#F7FAFC}
.nav a.nav-btn{background:#4A5568;color:#fff;padding:8px 22px;margin-left:10px}
.nav a.nav-btn:hover{background:#2D3748;color:#fff}
.menu-btn{display:none;background:none;border:none;cursor:pointer;padding:8px}
.menu-btn span{display:block;width:22px;height:2px;background:#333;margin:5px 0;transition:.3s}

/* Banner */
.banner{padding:60px 0;background:linear-gradient(135deg,#F7FAFC 0%,#EDF2F7 100%)}
.banner-inner{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.banner h1{font-size:36px;font-weight:700;color:#2D3748;line-height:1.4;margin-bottom:20px}
.banner-text p{font-size:16px;color:#4A5568;line-height:1.8;margin-bottom:30px}
.banner-btns{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 24px;border-radius:2px;font-size:15px;cursor:pointer;border:none;transition:all .2s}
.btn-primary{background:#4A5568;color:#fff}
.btn-primary:hover{background:#2D3748;color:#fff}
.btn-outline{background:#fff;color:#4A5568;border:1px solid #CBD5E0}
.btn-outline:hover{border-color:#4A5568}
.btn-text{background:none;color:#4A5568;padding:10px 0}
.btn-lg{padding:12px 36px;font-size:16px}
.block{width:100%}
.banner-img img{border:1px solid #E2E8F0;box-shadow:0 8px 24px rgba(0,0,0,.08)}

/* Section */
.section{padding:60px 0}
.section-title{text-align:center;margin-bottom:45px}
.section-title.left{text-align:left;margin-bottom:25px}
.section-title h2{font-size:28px;font-weight:700;color:#2D3748;margin-bottom:10px;position:relative;padding-bottom:15px}
.section-title h2::after{content:"";position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:50px;height:3px;background:#4A5568}
.section-title.left h2::after{left:0;transform:none}
.section-title p{font-size:15px;color:#718096}

/* Intro */
.intro-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.intro-item{text-align:center;padding:30px 20px;border:1px solid #E2E8F0;background:#fff}
.intro-item:hover{box-shadow:0 8px 24px rgba(0,0,0,.06);border-color:#CBD5E0}
.intro-icon{width:60px;height:60px;background:#EDF2F7;color:#4A5568;border-radius:50%;font-size:24px;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 18px}
.intro-item h3{font-size:17px;color:#2D3748;margin-bottom:10px}
.intro-item p{font-size:14px;color:#718096;line-height:1.7}

/* Platforms */
.platforms-section{background:#F7FAFC}
.platforms-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:15px}
.platform-item{background:#fff;padding:24px 15px;text-align:center;border:1px solid #E2E8F0;color:#333}
.platform-item:hover{border-color:#4A5568;box-shadow:0 4px 12px rgba(0,0,0,.06)}
.platform-item h4{font-size:16px;color:#2D3748;margin-bottom:8px}
.platform-item p{font-size:13px;color:#718096;line-height:1.6}

/* Services */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service-item{background:#fff;border:1px solid #E2E8F0;padding:30px;transition:all .3s;position:relative}
.service-item:hover{box-shadow:0 8px 24px rgba(0,0,0,.08);transform:translateY(-2px)}
.service-item.hot{border-color:#4A5568}
.hot-tag{position:absolute;top:0;right:20px;background:#C53030;color:#fff;font-size:12px;padding:4px 12px;border-radius:0 0 2px 2px}
.service-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.service-no{font-size:28px;font-weight:700;color:#E2E8F0}
.service-head h3{font-size:18px;color:#2D3748}
.service-desc{font-size:14px;color:#4A5568;line-height:1.8;margin-bottom:16px;min-height:76px}
.service-features{margin-bottom:20px;padding-top:16px;border-top:1px dashed #E2E8F0}
.service-features li{padding:5px 0;font-size:13px;color:#718096;padding-left:18px;position:relative}
.service-features li::before{content:"√";position:absolute;left:0;color:#2F855A;font-weight:700}
.service-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:16px;border-top:1px solid #E2E8F0}
.service-price{font-size:16px;font-weight:700;color:#C53030}
.service-link{font-size:14px;font-weight:500;color:#4A5568}
.service-link:hover{color:#2D3748;text-decoration:underline}

/* Process */
.process-section{background:#F7FAFC}
.process-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.process-wrap::before{content:"";position:absolute;top:30px;left:10%;right:10%;height:2px;background:#CBD5E0}
.process-step{text-align:center;position:relative;z-index:1;background:#F7FAFC;padding:0 10px}
.step-num{width:60px;height:60px;background:#fff;border:2px solid #4A5568;color:#4A5568;border-radius:50%;font-size:22px;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.process-step h4{font-size:16px;color:#2D3748;margin-bottom:8px}
.process-step p{font-size:13px;color:#718096;line-height:1.7}

/* News */
ul.article-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px;list-style:none;margin:0;padding:0;width:100%;box-sizing:border-box}
ul.article-cards>li.article-card{min-width:0;width:auto;max-width:none;margin:0;float:none;box-sizing:border-box;background:#fff;border:1px solid #E2E8F0;transition:all .3s}
ul.article-cards>li.article-card:hover{box-shadow:0 6px 16px rgba(0,0,0,.08);transform:translateY(-2px)}
.article-card .card-thumb{width:100%;overflow:hidden;aspect-ratio:16/9}
.article-card .card-thumb img{display:block;width:100%;max-width:100%;height:100%;object-fit:cover}
.article-card .card-body{padding:18px}
.article-card .card-title{overflow-wrap:anywhere;font-size:15px;font-weight:600;color:#2D3748;margin-bottom:8px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.article-card .card-title a{color:#2D3748}
.article-card .card-title a:hover{color:#4A5568}
.article-card .card-date{display:block;font-size:12px;color:#A0AEC0;margin-bottom:6px}
.article-card .card-summary{overflow-wrap:anywhere;font-size:13px;color:#718096;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* FAQ */
.faq-section{background:#F7FAFC}
.faq-list{max-width:850px;margin:0 auto}
.faq-item{background:#fff;border:1px solid #E2E8F0;margin-bottom:10px}
.faq-question{padding:18px 24px;font-size:15px;font-weight:600;color:#2D3748;cursor:pointer;position:relative;padding-right:40px}
.faq-question::after{content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);font-size:20px;color:#4A5568;font-weight:400;transition:transform .3s}
.faq-item.active .faq-question::after{content:"-"}
.faq-answer{padding:0 24px;max-height:0;overflow:hidden;font-size:14px;color:#4A5568;line-height:1.8;transition:all .3s}
.faq-item.active .faq-answer{padding:0 24px 18px;max-height:300px}

/* About */
.about-wrap{display:grid;grid-template-columns:2fr 1fr;gap:50px;align-items:start}
.about-left p{font-size:15px;color:#4A5568;line-height:1.8;margin-bottom:15px}
.about-left .btn{margin-top:10px}
.contact-box{background:#F7FAFC;border:1px solid #E2E8F0;padding:28px}
.contact-box h3{font-size:18px;color:#2D3748;margin-bottom:20px;padding-bottom:12px;border-bottom:1px solid #E2E8F0}
.contact-box ul li{padding:10px 0;font-size:14px;color:#4A5568;border-bottom:1px dashed #E2E8F0}
.contact-box ul li:last-child{border-bottom:none;margin-bottom:20px}
.contact-box strong{color:#2D3748;margin-right:6px}
.contact-box a{color:#4A5568;font-weight:600}

/* Form */
.apply-section{background:#F7FAFC}
.form-wrap{max-width:800px;margin:0 auto;background:#fff;padding:36px;border:1px solid #E2E8F0;box-shadow:0 2px 8px rgba(0,0,0,.04)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:18px}
.form-group{display:flex;flex-direction:column;margin-bottom:18px}
.form-group label{font-size:14px;font-weight:500;color:#2D3748;margin-bottom:6px}
.form-group label span{color:#C53030}
.form-group input,.form-group select,.form-group textarea{padding:10px 14px;border:1px solid #CBD5E0;border-radius:2px;font-size:14px;font-family:inherit;transition:border-color .2s}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:#4A5568}
.form-group textarea{resize:vertical}
.form-submit{text-align:center}
.form-tip{margin-top:12px;font-size:13px;color:#718096}

/* Article Detail */
.breadcrumb-bar{padding:14px 0;background:#F7FAFC;border-bottom:1px solid #E2E8F0;font-size:13px;color:#718096}
.breadcrumb-bar a{color:#4A5568}
.breadcrumb-bar a:hover{color:#2D3748}
.article-section{padding:40px 0 70px}
.article-container{max-width:800px;margin:0 auto}
.article-header{margin-bottom:20px;text-align:center}
.article-header h1{font-size:28px;font-weight:700;color:#2D3748;line-height:1.4;margin-bottom:15px}
.article-meta{font-size:13px;color:#A0AEC0}
.article-meta span{margin:0 10px}
.article-date{display:none}
.article-lead{padding:18px 22px;background:#F7FAFC;border-left:3px solid #4A5568;font-size:15px;color:#4A5568;line-height:1.8;margin-bottom:25px}
.article-cover{margin-bottom:25px}
.article-cover img{width:100%;border:1px solid #E2E8F0}
.article-content-wrap{font-size:15px;line-height:1.9;color:#333;margin-bottom:35px}
.article-content-wrap p{margin-bottom:18px}
.article-content-wrap h2{font-size:22px;color:#2D3748;margin:28px 0 14px}
.article-content-wrap h3{font-size:18px;color:#2D3748;margin:22px 0 12px}
.article-actions{display:flex;gap:12px;justify-content:center;padding-top:30px;border-top:1px solid #E2E8F0}

/* Footer */
.footer{background:#2D3748;color:#CBD5E0}
.footer-top{padding:50px 0 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:35px}
.footer-logo{font-size:20px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-brand p{font-size:13px;line-height:1.8;margin-bottom:12px}
.footer-hotline strong a{color:#fff;font-size:16px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:600}
.footer-col ul li{margin-bottom:8px}
.footer-col ul li a{color:#CBD5E0;font-size:13px}
.footer-col ul li a:hover{color:#fff}
.contact-info li{font-size:13px;margin-bottom:8px}
.contact-info a{color:#fff;font-weight:600}
.friend-links{padding-top:10px;font-size:12px;line-height:2}
.friend-links a{color:#A0AEC0;margin-right:10px}
.friend-links a:hover{color:#fff}
.footer-bottom{padding:20px 0;border-top:1px solid #4A5568;font-size:12px;text-align:center;color:#A0AEC0}
.footer-bottom a{color:#A0AEC0}
.footer-bottom a:hover{color:#fff}

/* Responsive */
@media(max-width:992px){
  .banner-inner{grid-template-columns:1fr;gap:30px}
  .intro-grid{grid-template-columns:repeat(2,1fr)}
  .platforms-grid{grid-template-columns:repeat(3,1fr)}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .process-wrap{grid-template-columns:repeat(2,1fr);gap:30px}
  .process-wrap::before{display:none}
  .about-wrap{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:30px}
}
@media(max-width:768px){
  .top-bar{display:none}
  .nav{position:fixed;top:70px;left:-100%;width:280px;height:calc(100vh - 70px);background:#fff;box-shadow:2px 0 10px rgba(0,0,0,.1);transition:left .3s;padding:15px;z-index:999}
  .nav.open{left:0}
  .nav ul{flex-direction:column;align-items:stretch;gap:0}
  .nav a{padding:12px 10px;border-bottom:1px solid #EDF2F7}
  .nav a.nav-btn{margin:10px 0 0;text-align:center}
  .menu-btn{display:block}
  .banner{padding:40px 0}
  .banner h1{font-size:26px}
  .section{padding:45px 0}
  .section-title h2{font-size:22px}
  .intro-grid{grid-template-columns:1fr}
  .platforms-grid{grid-template-columns:repeat(2,1fr)}
  .services-grid{grid-template-columns:1fr}
  .process-wrap{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr;gap:0;margin-bottom:0}
  .form-group{margin-bottom:14px}
  .form-wrap{padding:24px}
  .article-header h1{font-size:22px}
  .article-actions{flex-direction:column}
  .footer-grid{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}