*,::before,::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:#333;line-height:1.6;background:#1F2937}
.container{max-width:1280px;margin:0 auto;padding:0 20px}
.navbar{position:fixed;top:0;left:0;right:0;z-index:50;background:rgba(31,41,55,.95);backdrop-filter:blur(10px)}
.navbar-inner{display:flex;justify-content:space-between;align-items:center;height:64px}
.navbar .logo{display:flex;align-items:center;gap:8px;color:#fff;text-decoration:none;font-weight:700;font-size:20px}
.navbar .logo-icon{width:40px;height:40px;background:#2563EB;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:20px}
.nav-links{display:none;gap:32px;list-style:none}
.nav-links a{color:#d1d5db;text-decoration:none;font-size:14px;transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:#fff}
.btn-cta{background:#2563EB;color:#fff;padding:10px 20px;border-radius:8px;font-weight:600;text-decoration:none;font-size:14px;display:none}
@media(min-width:1024px){.nav-links,.btn-cta{display:flex}}
.mobile-menu-btn{background:none;border:none;color:#fff;font-size:24px;cursor:pointer;display:block}
@media(min-width:1024px){.mobile-menu-btn{display:none}}
.mobile-menu{display:none;background:#1F2937;border-top:1px solid #374151;padding:16px}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:12px 16px;color:#fff;text-decoration:none}
main{padding-top:64px}
.hero{position:relative;height:700px;overflow:hidden}
.hero .slide{position:absolute;inset:0;transition:opacity 1s}
.hero .slide img{width:100%;height:100%;object-fit:cover}
.hero .slide-bg{position:absolute;inset:0}
.hero .slide .overlay{position:absolute;inset:0;background:linear-gradient(to right,rgba(31,41,55,.9),rgba(31,41,55,.5))}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap;justify-content:flex-start}
.btn-primary{background:#2563EB;color:#fff;padding:16px 32px;border-radius:8px;font-weight:600;text-decoration:none;display:inline-flex;align-items:center;gap:8px;border:none;cursor:pointer;transition:background .2s}
.btn-primary:hover{background:#1d4ed8}
.btn-outline{background:rgba(255,255,255,.1);color:#fff;padding:16px 32px;border-radius:8px;font-weight:600;text-decoration:none;border:1px solid rgba(255,255,255,.2);display:inline-flex;align-items:center;gap:8px;transition:background .2s}
.btn-outline:hover{background:rgba(255,255,255,.2)}
.trust-bar{padding:64px 0;background:#1F2937;border-bottom:1px solid #374151}
.trust-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:32px;text-align:center}
.trust-stats .num{font-size:40px;font-weight:700;color:#2563EB}
.trust-stats .lbl{color:#9ca3af;margin-top:4px}
@media(min-width:768px){.trust-stats{grid-template-columns:repeat(4,1fr)}}
.scroll-fade{opacity:0;transform:translateY(20px);transition:all .6s ease}
.scroll-fade.show{opacity:1;transform:translateY(0)}
.d1{transition-delay:.1s}.d2{transition-delay:.2s}.d3{transition-delay:.3s}
.section{padding:80px 0}
.section.bg-white{background:#fff}
.section.bg-gray{background:#f9fafb}
.section.bg-dark{background:#1F2937}
.sec-tag{color:#2563EB;font-size:14px;font-weight:500;text-transform:uppercase;letter-spacing:2px;display:block;margin-bottom:8px}
.sec-title{font-size:36px;font-weight:700;color:#1F2937;margin-bottom:16px}
.bg-dark .sec-title{color:#fff}
.sec-desc{color:#6b7280;max-width:672px;margin:0 auto 48px}
.text-center{text-align:center}
.grid2{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:768px){.grid2{grid-template-columns:repeat(2,1fr)}}
.grid3{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:768px){.grid3{grid-template-columns:repeat(3,1fr)}}
.grid4{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:768px){.grid4{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.grid4{grid-template-columns:repeat(4,1fr)}}
.svc-card{padding:24px;background:#f9fafb;border-radius:12px;transition:box-shadow .3s}
.svc-card:hover{box-shadow:0 10px 30px rgba(0,0,0,.1)}
.svc-ico{width:56px;height:56px;background:rgba(37,99,235,.1);border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:16px;transition:background .3s}
.svc-card:hover .svc-ico{background:#2563EB}
.svc-ico svg{color:#2563EB;transition:color .3s}
.svc-card:hover .svc-ico svg{color:#fff}
.svc-card h3{font-size:20px;font-weight:600;color:#1F2937;margin-bottom:8px}
.svc-card p{color:#6b7280}
.case-card{padding:24px;background:#f9fafb;border-radius:12px;cursor:pointer;transition:box-shadow .3s}
.case-card:hover{box-shadow:0 10px 30px rgba(0,0,0,.1)}
.case-tag{display:inline-block;padding:4px 12px;background:rgba(37,99,235,.1);color:#2563EB;border-radius:20px;font-size:13px;margin-bottom:12px}
.case-card h3{font-size:20px;font-weight:700;color:#1F2937;margin-bottom:4px}
.case-client{color:#6b7280;font-size:14px;margin-bottom:8px}
.case-desc{color:#6b7280;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.case-res{color:#2563EB;font-weight:500;font-size:14px;margin-top:12px}
.case-btn{display:inline-block;margin-top:12px;color:#2563EB;font-size:14px;font-weight:600;text-decoration:none}.case-btn:hover{text-decoration:underline}
.cta-sec{padding:80px 0;background:#1F2937;text-align:center}
.cta-sec h2{font-size:36px;font-weight:700;color:#fff;margin-bottom:16px}
.cta-sec p{color:#d1d5db;margin-bottom:32px}
.footer{background:#111827;border-top:1px solid #374151;padding:48px 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:repeat(4,1fr)}}
.footer h3{color:#fff;font-weight:600;margin-bottom:16px}
.footer p,.footer a,.footer li{color:#9ca3af;font-size:14px;text-decoration:none;line-height:2}
.footer a:hover{color:#fff}
.footer ul{list-style:none}
.footer .f-logo{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.footer .f-logo-ico{width:32px;height:32px;background:#2563EB;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700}
.footer-bottom{border-top:1px solid #374151;margin-top:48px;padding-top:32px;text-align:center;color:#6b7280;font-size:13px}
.modal{position:fixed;inset:0;z-index:60;background:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;padding:16px}
.modal-box{background:#fff;border-radius:16px;max-width:672px;width:100%;max-height:90vh;overflow-y:auto}
.modal-top{height:200px;background:linear-gradient(135deg,#2563EB,#1F2937);display:flex;align-items:center;justify-content:center;position:relative;border-radius:16px 16px 0 0;z-index:1}
.modal-top svg{width:80px;height:80px;color:rgba(255,255,255,.8)}
.modal-close{position:absolute;top:20px;right:20px;width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.25);border:1px solid rgba(255,255,255,.3);color:#fff;font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s}.modal-close:hover{background:rgba(255,255,255,.4)}
.modal-body{padding:32px}
.modal-body h2{font-size:20px;font-weight:600;color:#1F2937;margin-bottom:12px}
.modal-body .mod-tags{display:flex;gap:12px;margin-bottom:16px}
.modal-body .mod-desc{color:#6b7280;margin-bottom:20px;line-height:1.7;font-size:15px}
.modal-body .mod-res{background:rgba(37,99,235,.05);border-radius:12px;padding:24px}
.modal-body .mod-res strong{display:block;color:#1F2937;margin-bottom:8px}
.modal-body .mod-res p{color:#2563EB;font-weight:500;font-size:16px}
.hidden{display:none!important}
.mt-12{margin-top:48px}
.mb-16{margin-bottom:64px}
.list-item{padding:24px;background:#fff;border:1px solid #e5e7eb;border-radius:12px;transition:box-shadow .3s}
.list-item:hover{box-shadow:0 4px 20px rgba(0,0,0,.08)}
.list-item h3{font-size:18px;font-weight:600;margin-bottom:8px}
.list-item h3 a{color:#1F2937;text-decoration:none}
.list-item h3 a:hover{color:#2563EB}
.list-item .meta{color:#9ca3af;font-size:13px;margin-bottom:8px}
.list-item .desc{color:#6b7280;font-size:14px}
.pagination{display:flex;justify-content:center;gap:8px;margin-top:48px;flex-wrap:wrap}
.pagination a,.pagination span{padding:8px 16px;border:1px solid #e5e7eb;border-radius:8px;color:#1F2937;text-decoration:none;font-size:14px}
.pagination a:hover{background:#2563EB;color:#fff;border-color:#2563EB}
.pagination .current{background:#2563EB;color:#fff;border-color:#2563EB}
.article-content{font-size:18px;line-height:2;color:#374151}
.article-content p{margin-bottom:16px}
.article-content h2{font-size:24px;font-weight:600;color:#1F2937;margin:32px 0 16px}
.article-meta{display:flex;gap:16px;color:#9ca3af;font-size:14px;margin-bottom:32px;flex-wrap:wrap}
.prev-next{display:flex;justify-content:space-between;margin-top:48px;padding-top:32px;border-top:1px solid #e5e7eb}
.prev-next a{color:#2563EB;text-decoration:none}
.contact-info{display:flex;flex-direction:column;gap:24px}
.contact-item{display:flex;gap:16px;align-items:flex-start}
.contact-item .ci-ico{width:48px;height:48px;background:rgba(37,99,235,.1);border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.contact-item .ci-ico svg{color:#2563EB}
.contact-item h4{font-weight:600;color:#1F2937;margin-bottom:4px}
.contact-item p{color:#6b7280}
.contact-form{background:#f9fafb;border-radius:16px;padding:32px}
.contact-form input,.contact-form textarea{width:100%;padding:12px 16px;border:1px solid #d1d5db;border-radius:8px;font-size:16px;margin-bottom:16px;transition:border-color .2s}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:#2563EB;box-shadow:0 0 0 3px rgba(37,99,235,.1)}
.contact-form textarea{resize:vertical;min-height:120px}
.contact-form button{width:100%;padding:14px;background:#2563EB;color:#fff;border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:background .2s}
.contact-form button:hover{background:#1d4ed8}
.expertise-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:768px){.expertise-grid{grid-template-columns:repeat(2,1fr)}}
.exp-item{display:flex;gap:12px;align-items:flex-start}
.exp-ico{width:40px;height:40px;background:rgba(37,99,235,.1);border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.exp-ico svg{color:#2563EB}
.exp-item h4{font-weight:600;color:#1F2937;margin-bottom:2px}
.exp-item p{color:#6b7280;font-size:14px}
.faq-item{border:1px solid #e5e7eb;border-radius:12px;padding:20px;cursor:pointer;transition:box-shadow .3s;margin-bottom:12px}
.faq-item:hover{box-shadow:0 4px 20px rgba(0,0,0,.08)}
.faq-item h3{font-size:18px;font-weight:600;color:#1F2937;margin-bottom:8px}
.news-detail-layout{display:grid;grid-template-columns:1fr;gap:48px}
@media(min-width:1024px){.news-detail-layout{grid-template-columns:1fr 320px}}
.news-sidebar h3{font-size:18px;font-weight:600;color:#1F2937;margin-bottom:16px}
.news-sidebar .side-item{padding:12px 0;border-bottom:1px solid #f3f4f6}
.news-sidebar .side-item a{color:#4b5563;text-decoration:none;font-size:14px;transition:color .2s;display:block;line-height:1.5}
.news-sidebar .side-item a:hover{color:#2563EB}.news-sidebar .side-item .side-date{display:none}
.news-sidebar .side-item .side-date{color:#9ca3af;font-size:12px}
/* 服务页 */
.pricing-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:768px){.pricing-grid{grid-template-columns:repeat(3,1fr)}}
.pricing-card{padding:40px 32px;background:#fff;border:2px solid #e5e7eb;border-radius:16px;text-align:center;transition:all .3s;position:relative}
.pricing-card:hover{border-color:#2563EB;box-shadow:0 20px 60px rgba(37,99,235,.1);transform:translateY(-4px)}
.pricing-card.featured{border-color:#2563EB;background:linear-gradient(180deg,#eff6ff 0%,#dbeafe 100%)}
.pricing-card.featured::before{content:'推荐';position:absolute;top:16px;right:16px;background:#2563EB;color:#fff;padding:4px 12px;border-radius:20px;font-size:12px;font-weight:600}
.pricing-card h3{font-size:24px;font-weight:700;color:#1F2937;margin-bottom:8px}
.pricing-card .price{font-size:42px;font-weight:700;color:#2563EB;margin:16px 0}
.pricing-card .price span{font-size:16px;font-weight:400;color:#9ca3af}
.pricing-card .feature-list{list-style:none;text-align:left;margin:24px 0}
.pricing-card .feature-list li{padding:8px 0;color:#6b7280;font-size:14px;border-bottom:1px solid #f3f4f6}
.pricing-card .feature-list li::before{content:'✓ ';color:#2563EB;font-weight:700}
.pricing-card .btn-pricing{display:block;padding:14px;background:#2563EB;color:#fff;border-radius:8px;text-decoration:none;font-weight:600;transition:background .2s}
.pricing-card .btn-pricing:hover{background:#1d4ed8}
/* 关于页统计 */
.about-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:48px}
@media(min-width:768px){.about-stats{grid-template-columns:repeat(4,1fr)}}
.about-stat{text-align:center;padding:24px;background:#f9fafb;border-radius:12px}
.about-stat .num{font-size:36px;font-weight:700;color:#2563EB;margin-bottom:4px}
.about-stat .lbl{color:#6b7280;font-size:14px}
.hero-text-wrap{position:relative;z-index:10;height:100%;display:flex;align-items:center}
.hero-text-wrap .container{max-width:1280px;margin:0;padding:0 6%;text-align:left}
.hero-badge{display:inline-block;padding:6px 16px;background:rgba(37,99,235,.25);color:#93c5fd;font-size:14px;border-radius:20px;border:1px solid rgba(37,99,235,.4);margin-bottom:16px}
.hero-title{font-size:48px;font-weight:700;color:#fff;margin-bottom:16px;line-height:1.2;text-align:left}
.hero-desc{font-size:20px;color:#e5e7eb;margin-bottom:32px;text-align:left}
@media(max-width:768px){.hero-title{font-size:32px}.hero-desc{font-size:16px}}
.page-hero{background:#1F2937;padding:80px 0 40px;border-bottom:1px solid #374151}
.page-hero-title{font-size:36px;font-weight:700;color:#fff;text-align:center}
@media(max-width:768px){.page-hero{padding:60px 0 30px}.page-hero-title{font-size:28px}}
.page-hero-desc{color:#9ca3af;font-size:18px;text-align:center;margin-top:12px}
@media(max-width:768px){.page-hero-desc{font-size:16px}}
.svc-card{border:1px solid #e5e7eb}
.pricing-icon{width:64px;height:64px;background:rgba(37,99,235,.08);border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.pricing-currency{font-size:32px;font-weight:700;vertical-align:super;margin-right:4px}
.pricing-period{font-size:18px;font-weight:400;color:#9ca3af;margin-left:4px}
.feature-list li{padding:10px 0}
.modal .navbar{display:none!important}
.faq-section{margin-bottom:40px}
.faq-cat-title{display:flex;align-items:center;gap:8px;font-size:18px;font-weight:600;color:#1F2937;margin-bottom:16px;padding-bottom:8px;border-bottom:1px solid #e5e7eb}
.faq-row{border-bottom:1px solid #f3f4f6;padding:14px 0;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:12px}
.faq-row span{color:#374151;font-size:15px;font-weight:400;flex:1}
.faq-row .faq-body{display:none;flex-basis:100%;padding:12px 0 4px;color:#6b7280;font-size:14px;line-height:1.8}
.faq-row.open .faq-body{display:block}
.faq-row.open svg line:first-child{display:none}
.faq-item .faq-answer{display:none;color:#6b7280;padding-top:12px;border-top:1px solid #e5e7eb;margin-top:12px}
.faq-item.open .faq-answer{display:block}
.faq-item{border-bottom:1px solid #f3f4f6}
.faq-item .faq-q{display:flex;align-items:center;justify-content:space-between;padding:14px 0;cursor:pointer;gap:12px}
.faq-item .faq-q span{color:#374151;font-size:15px;font-weight:400;flex:1}
.faq-item .faq-q svg{flex-shrink:0;transition:transform .3s}
.faq-item.open .faq-q svg{transform:rotate(180deg)}
.faq-item .faq-a{display:none;padding:0 0 16px;color:#6b7280;font-size:14px;line-height:1.8}
.faq-item.open .faq-a{display:block}