*{margin:0;padding:0;box-sizing:border-box;}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:#f4f7fe;color:#122046;line-height:1.6;-webkit-font-smoothing:antialiased;}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}
img{max-width:100%;display:block;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 30px;border-radius:50px;font-size:15px;font-weight:600;cursor:pointer;border:none;transition:all .3s ease;white-space:nowrap;}
.btn-primary{background:#1a4fd6;color:#fff;box-shadow:0 8px 22px rgba(26,79,214,.28);}
.btn-primary:hover{background:#0b3bb8;transform:translateY(-2px);box-shadow:0 12px 28px rgba(26,79,214,.38);}
.btn-outline{background:#fff;color:#1a3fa6;border:1.5px solid #bcd0ff;}
.btn-outline:hover{background:#eef3ff;transform:translateY(-2px);}
.btn-ghost{background:rgba(26,79,214,.1);color:#1a3fa6;}
.btn-ghost:hover{background:rgba(26,79,214,.18);}
.section{padding:84px 0;}
.section-alt{background:#eef3ff;}
.sec-head{text-align:center;max-width:760px;margin:0 auto 52px;}
.sec-tag{display:inline-block;font-size:13px;font-weight:600;letter-spacing:1px;color:#1a4fd6;background:#dfe9ff;padding:5px 16px;border-radius:30px;margin-bottom:18px;}
.sec-title{font-size:34px;font-weight:800;color:#0c1a44;line-height:1.3;margin-bottom:16px;}
.sec-desc{font-size:16px;color:#4a5878;line-height:1.7;}
h1{font-size:46px;line-height:1.22;font-weight:800;color:#0a1740;letter-spacing:-.5px;}

/* header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid #e2eaff;box-shadow:0 2px 16px rgba(26,79,214,.05);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;min-height:70px;gap:16px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand img{height:38px;width:auto;}
.brand-name{font-size:19px;font-weight:800;color:#0c1a44;letter-spacing:.5px;}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap;}
.nav-links a{font-size:14px;font-weight:500;color:#2c3a5e;padding:8px 11px;border-radius:8px;transition:color .25s,background .25s;}
.nav-links a:hover{color:#1a4fd6;background:#eef3ff;}
.nav-cta{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-cta .btn{padding:9px 20px;font-size:13.5px;}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;}
.menu-toggle span{display:block;width:24px;height:2.5px;background:#1a3fa6;border-radius:3px;margin:5px 0;transition:.3s;}
.menu-toggle.active span:nth-child(1){transform:translateY(7.5px) rotate(45deg);}
.menu-toggle.active span:nth-child(2){opacity:0;}
.menu-toggle.active span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg);}

/* hero */
.hero{position:relative;overflow:hidden;background:linear-gradient(150deg,#e8f0ff 0%,#f4f7fe 45%,#e3edff 100%);padding:80px 0 86px;}
.hero::before{content:"";position:absolute;top:-160px;right:-120px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(26,79,214,.14),transparent 68%);}
.hero::after{content:"";position:absolute;bottom:-200px;left:-140px;width:480px;height:480px;border-radius:50%;background:radial-gradient(circle,rgba(30,120,255,.1),transparent 70%);}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;position:relative;z-index:2;}
.hero-label{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:#1a4fd6;background:#dfe9ff;padding:6px 16px;border-radius:30px;margin-bottom:24px;}
.hero-label::before{content:"";width:7px;height:7px;border-radius:50%;background:#1a4fd6;}
.hero h1{margin-bottom:22px;}
.hero h1 em{font-style:normal;color:#1a4fd6;}
.hero-sub{font-size:17px;color:#3c4c74;line-height:1.75;margin-bottom:32px;max-width:560px;}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:38px;}
.hero-metrics{display:flex;gap:40px;flex-wrap:wrap;}
.hero-metric .num{font-size:26px;font-weight:800;color:#1a4fd6;line-height:1.2;}
.hero-metric .lbl{font-size:13px;color:#5a688a;}
.hero-panel{background:rgba(255,255,255,.85);border:1px solid #d4e0ff;border-radius:26px;padding:30px;box-shadow:0 24px 60px rgba(26,79,214,.12);}
.hero-panel-title{font-size:15px;font-weight:700;color:#0c1a44;margin-bottom:20px;display:flex;align-items:center;gap:8px;}
.hero-panel-title::before{content:"";width:4px;height:16px;border-radius:3px;background:#1a4fd6;}
.model-tags{display:flex;flex-wrap:wrap;gap:9px;}
.model-tags span{font-size:12.5px;font-weight:500;color:#1a3fa6;background:#eaf1ff;border:1px solid #d4e2ff;border-radius:8px;padding:5px 12px;transition:.25s;}
.model-tags span:hover{background:#1a4fd6;color:#fff;border-color:#1a4fd6;transform:translateY(-2px);}

/* stats */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.stat-card{background:#fff;border-radius:18px;padding:32px 26px;border:1px solid #e2eaff;box-shadow:0 10px 30px rgba(26,79,214,.06);transition:transform .3s,box-shadow .3s;}
.stat-card:hover{transform:translateY(-5px);box-shadow:0 16px 40px rgba(26,79,214,.14);}
.stat-num{font-size:36px;font-weight:800;color:#1a4fd6;line-height:1.15;margin-bottom:8px;}
.stat-label{font-size:15px;font-weight:600;color:#1c2b52;margin-bottom:6px;}
.stat-note{font-size:13px;color:#6e7a96;line-height:1.6;}

/* about */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.about-visual{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.about-visual .av-card{background:#fff;border-radius:18px;padding:26px 22px;border:1px solid #e2eaff;box-shadow:0 10px 28px rgba(26,79,214,.07);}
.av-card .av-icon{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,#1a4fd6,#3a7bff);display:flex;align-items:center;justify-content:center;margin-bottom:16px;color:#fff;font-size:20px;font-weight:700;}
.av-card h3{font-size:16px;font-weight:700;color:#0c1a44;margin-bottom:7px;}
.av-card p{font-size:13.5px;color:#5a688a;line-height:1.65;}
.about-text h2{font-size:30px;font-weight:800;color:#0c1a44;margin-bottom:20px;line-height:1.35;}
.about-text p{font-size:15.5px;color:#3c4c74;line-height:1.8;margin-bottom:16px;}
.about-list li{position:relative;padding-left:26px;font-size:14.5px;color:#2c3a5e;margin-bottom:12px;}
.about-list li::before{content:"✓";position:absolute;left:0;top:0;color:#1a4fd6;font-weight:800;}

/* services */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.svc-card{background:#fff;border-radius:20px;padding:32px 28px;border:1px solid #e2eaff;box-shadow:0 8px 26px rgba(26,79,214,.05);transition:transform .35s,box-shadow .35s,border-color .35s;}
.svc-card:hover{transform:translateY(-6px);box-shadow:0 18px 44px rgba(26,79,214,.14);border-color:#bcd0ff;}
.svc-icon{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,#e8f0ff,#d4e2ff);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:20px;}
.svc-card h3{font-size:18px;font-weight:700;color:#0c1a44;margin-bottom:10px;}
.svc-card p{font-size:14px;color:#5a688a;line-height:1.7;}

/* workflow */
.flow-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step;}
.flow-item{position:relative;background:#fff;border-radius:18px;padding:32px 24px;border:1px solid #e2eaff;box-shadow:0 8px 24px rgba(26,79,214,.05);}
.flow-item::before{counter-increment:step;content:"0" counter(step);position:absolute;top:24px;right:24px;font-size:26px;font-weight:800;color:#dfe9ff;}
.flow-item h3{font-size:17px;font-weight:700;color:#0c1a44;margin-bottom:10px;}
.flow-item p{font-size:14px;color:#5a688a;line-height:1.7;}

/* compare */
.compare-table-wrap{overflow-x:auto;background:#fff;border-radius:20px;border:1px solid #e2eaff;box-shadow:0 12px 36px rgba(26,79,214,.07);}
.compare-table{width:100%;border-collapse:collapse;min-width:720px;}
.compare-table th,.compare-table td{padding:18px 22px;text-align:left;font-size:14.5px;border-bottom:1px solid #edf2ff;}
.compare-table thead th{background:#f3f7ff;font-weight:700;color:#0c1a44;font-size:15px;}
.compare-table tbody td:first-child{font-weight:600;color:#1c2b52;background:#fafcff;}
.compare-table tbody tr:last-child td{border-bottom:none;}
.compare-table .score{font-size:18px;font-weight:800;color:#1a4fd6;}
.compare-table .stars{color:#ff9f1a;letter-spacing:2px;font-size:15px;}
.compare-badge{display:inline-flex;align-items:center;gap:6px;background:#e6f7ef;color:#1a8f5c;font-size:13px;font-weight:600;padding:4px 12px;border-radius:20px;}

/* testimonials */
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.review-card{background:#fff;border-radius:18px;padding:30px 26px;border:1px solid #e2eaff;box-shadow:0 8px 24px rgba(26,79,214,.05);display:flex;flex-direction:column;transition:transform .3s,box-shadow .3s;}
.review-card:hover{transform:translateY(-5px);box-shadow:0 16px 40px rgba(26,79,214,.12);}
.review-stars{color:#ff9f1a;font-size:15px;letter-spacing:2px;margin-bottom:14px;}
.review-text{font-size:14.5px;color:#2c3a5e;line-height:1.75;flex:1;margin-bottom:20px;}
.review-user{display:flex;align-items:center;gap:12px;}
.review-avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,#1a4fd6,#3a7bff);color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;}
.review-user-info .name{font-size:14.5px;font-weight:700;color:#0c1a44;}
.review-user-info .role{font-size:12.5px;color:#7a86a3;}

/* cases */
.cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.case-card{background:#fff;border-radius:18px;overflow:hidden;border:1px solid #e2eaff;box-shadow:0 8px 24px rgba(26,79,214,.05);transition:transform .3s,box-shadow .3s;}
.case-card:hover{transform:translateY(-5px);box-shadow:0 16px 40px rgba(26,79,214,.12);}
.case-img{aspect-ratio:16/10;background:#eef3ff;overflow:hidden;}
.case-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s;}
.case-card:hover .case-img img{transform:scale(1.05);}
.case-body{padding:24px;}
.case-body h3{font-size:17px;font-weight:700;color:#0c1a44;margin-bottom:8px;}
.case-body p{font-size:13.5px;color:#5a688a;line-height:1.65;}

/* articles */
.articles-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.article-card{background:#fff;border-radius:16px;padding:26px 24px;border:1px solid #e2eaff;box-shadow:0 6px 20px rgba(26,79,214,.05);transition:transform .3s,box-shadow .3s;display:flex;flex-direction:column;}
.article-card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(26,79,214,.12);}
.article-tag{font-size:12px;font-weight:600;color:#1a4fd6;background:#eaf1ff;padding:3px 12px;border-radius:20px;align-self:flex-start;margin-bottom:14px;}
.article-card h3{font-size:16px;font-weight:700;color:#0c1a44;line-height:1.45;margin-bottom:10px;}
.article-card p{font-size:13.5px;color:#5a688a;line-height:1.65;flex:1;margin-bottom:16px;}
.article-link{font-size:13.5px;font-weight:600;color:#1a4fd6;}
.article-link:hover{text-decoration:underline;}

/* faq */
.faq-list{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{background:#fff;border-radius:14px;border:1px solid #e2eaff;box-shadow:0 4px 16px rgba(26,79,214,.04);overflow:hidden;transition:box-shadow .3s;}
.faq-item.open{box-shadow:0 10px 28px rgba(26,79,214,.1);border-color:#bcd0ff;}
.faq-q{display:flex;align-items:center;justify-content:space-between;padding:20px 26px;cursor:pointer;font-size:15.5px;font-weight:600;color:#0c1a44;gap:16px;user-select:none;}
.faq-icon{width:24px;height:24px;flex-shrink:0;border-radius:50%;background:#eaf1ff;color:#1a4fd6;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;transition:transform .3s,background .3s;}
.faq-item.open .faq-icon{transform:rotate(45deg);background:#1a4fd6;color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s ease;padding:0 26px;}
.faq-item.open .faq-a{max-height:300px;padding:0 26px 22px;}
.faq-a p{font-size:14px;color:#4a5878;line-height:1.75;}

/* form */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.form-info h2{font-size:30px;font-weight:800;color:#0c1a44;margin-bottom:18px;line-height:1.35;}
.form-info p{font-size:15px;color:#3c4c74;line-height:1.8;margin-bottom:26px;}
.contact-list li{display:flex;align-items:flex-start;gap:12px;font-size:14.5px;color:#2c3a5e;margin-bottom:16px;}
.contact-list .c-icon{width:38px;height:38px;flex-shrink:0;border-radius:10px;background:#eaf1ff;display:flex;align-items:center;justify-content:center;font-size:16px;}
.contact-list .c-content strong{display:block;font-size:13px;color:#7a86a3;font-weight:500;margin-bottom:2px;}
.contact-list .c-content span{font-size:14.5px;font-weight:600;color:#1c2b52;}
.form-card{background:#fff;border-radius:22px;padding:36px 32px;border:1px solid #e2eaff;box-shadow:0 18px 50px rgba(26,79,214,.1);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px;}
.form-group{margin-bottom:16px;}
.form-group label{display:block;font-size:13.5px;font-weight:600;color:#1c2b52;margin-bottom:7px;}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 15px;border:1.5px solid #dbe5ff;border-radius:10px;font-size:14px;color:#122046;background:#fafcff;transition:border-color .25s,box-shadow .25s;font-family:inherit;}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:#1a4fd6;box-shadow:0 0 0 3px rgba(26,79,214,.12);background:#fff;}
.form-group textarea{resize:vertical;min-height:100px;}
.form-submit{width:100%;padding:15px;font-size:15.5px;font-weight:700;background:#1a4fd6;color:#fff;border:none;border-radius:50px;cursor:pointer;transition:all .3s;box-shadow:0 10px 26px rgba(26,79,214,.28);}
.form-submit:hover{background:#0b3bb8;transform:translateY(-2px);box-shadow:0 14px 32px rgba(26,79,214,.38);}

/* footer */
.site-footer{background:#0a1740;color:#e8edff;padding:60px 0 0;}
.footer-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.1);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand img{height:36px;width:auto;}
.footer-brand .brand-name{color:#fff;font-size:18px;}
.footer-desc{font-size:13.5px;color:#9fb0d8;line-height:1.75;margin-bottom:20px;}
.footer-social{display:flex;flex-direction:column;gap:8px;font-size:13px;color:#9fb0d8;}
.footer-social span{color:#c5d2f0;font-weight:600;}
.footer-col h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{font-size:13.5px;color:#9fb0d8;transition:color .25s;}
.footer-col ul li a:hover{color:#6fa0ff;}
.footer-bottom{padding:22px 0;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px;}
.footer-copy{font-size:12.5px;color:#8a9bc4;}
.footer-links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-links a{font-size:12.5px;color:#8a9bc4;transition:color .25s;}
.footer-links a:hover{color:#6fa0ff;}

/* floating */
.floating{position:fixed;right:22px;bottom:26px;z-index:200;display:flex;flex-direction:column;gap:12px;}
.float-btn{width:50px;height:50px;border-radius:50%;background:#1a4fd6;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 8px 22px rgba(26,79,214,.35);font-size:18px;transition:transform .3s,background .3s;border:none;}
.float-btn:hover{transform:translateY(-4px) scale(1.05);background:#0b3bb8;}
.float-qr{position:fixed;right:84px;bottom:26px;z-index:199;background:#fff;border-radius:14px;padding:12px;box-shadow:0 12px 36px rgba(26,79,214,.2);display:none;border:1px solid #e2eaff;}
.float-qr.show{display:block;}
.float-qr img{width:150px;height:auto;border-radius:8px;}
.float-qr p{text-align:center;font-size:12px;color:#5a688a;margin-top:6px;}

/* animations */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease;}
.reveal.visible{opacity:1;transform:translateY(0);}
.reveal-delay-1{transition-delay:.1s;}
.reveal-delay-2{transition-delay:.2s;}
.reveal-delay-3{transition-delay:.3s;}

@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .about-grid{grid-template-columns:1fr;gap:40px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .svc-grid{grid-template-columns:repeat(2,1fr);}
  .reviews-grid{grid-template-columns:repeat(2,1fr);}
  .cases-grid{grid-template-columns:repeat(2,1fr);}
  .articles-grid{grid-template-columns:repeat(2,1fr);}
  .form-grid{grid-template-columns:1fr;gap:36px;}
  .footer-main{grid-template-columns:1fr 1fr;}
  .flow-wrap{grid-template-columns:repeat(2,1fr);}
  h1{font-size:38px;}
}
@media (max-width:768px){
  .nav-links{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 24px;border-bottom:1px solid #e2eaff;box-shadow:0 12px 30px rgba(26,79,214,.1);gap:4px;align-items:stretch;}
  .nav-links.open{display:flex;}
  .nav-links a{padding:11px 14px;font-size:15px;}
  .menu-toggle{display:block;}
  .nav-cta .btn{padding:8px 16px;font-size:12.5px;}
  h1{font-size:30px;}
  .hero{padding:52px 0 60px;}
  .hero-sub{font-size:15.5px;}
  .hero-metrics{gap:24px;}
  .hero-metric .num{font-size:22px;}
  .sec-title{font-size:26px;}
  .section{padding:56px 0;}
  .stats-grid{grid-template-columns:1fr 1fr;gap:14px;}
  .stat-card{padding:22px 18px;}
  .stat-num{font-size:28px;}
  .svc-grid,.reviews-grid,.cases-grid,.articles-grid{grid-template-columns:1fr;}
  .flow-wrap{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .compare-table th,.compare-table td{padding:14px 16px;font-size:13.5px;}
  .footer-main{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .about-text h2,.form-info h2{font-size:24px;}
  .hero-panel{padding:22px;}
  .review-card{padding:24px 20px;}
  .faq-q{padding:16px 18px;font-size:14.5px;}
  .faq-a{padding:0 18px;}
  .faq-item.open .faq-a{padding:0 18px 18px;}
}
@media (max-width:480px){
  .container{padding:0 16px;}
  h1{font-size:26px;}
  .hero-actions .btn{width:100%;}
  .stats-grid{grid-template-columns:1fr;}
  .hero-metrics{gap:18px;}
}