*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:#132238;background:#f4f7fb;line-height:1.7;font-size:16px}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}ul,ol{list-style:none}.container{max-width:1200px;margin:0 auto;padding:0 20px}.section{padding:72px 0}.section-head{text-align:center;margin-bottom:44px}.section-head h2{font-size:34px;font-weight:800;color:#0b1f3a;margin-bottom:12px}.section-head p{font-size:17px;color:#5b6478;max-width:680px;margin:0 auto}.btn{display:inline-block;padding:14px 32px;border-radius:28px;font-weight:700;font-size:16px;transition:.25s;cursor:pointer;border:none}.btn-primary{background:linear-gradient(135deg,#ff7a1a,#ff9d2e);color:#fff;box-shadow:0 8px 24px rgba(255,122,26,.35)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(255,122,26,.45)}.btn-accent{background:linear-gradient(135deg,#00b4d8,#0096c7);color:#fff;box-shadow:0 8px 24px rgba(0,180,216,.3)}.btn-accent:hover{transform:translateY(-2px)}.btn-outline{border:2px solid #ff7a1a;color:#ff7a1a;background:#fff}.btn-outline:hover{background:#ff7a1a;color:#fff}.tag{display:inline-block;padding:4px 14px;border-radius:20px;font-size:13px;font-weight:600}.tag-orange{background:#fff0e0;color:#ff7a1a}.tag-cyan{background:#e0f7fc;color:#0096c7}.tag-green{background:#e2f8e9;color:#16a34a}.tag-navy{background:#e6edf8;color:#1d4ed8}.tag-rose{background:#fde7ef;color:#db2777}.tag-gray{background:#eef1f5;color:#475569}
/* Header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(11,31,58,.95);backdrop-filter:blur(10px);color:#fff;box-shadow:0 2px 12px rgba(0,0,0,.15)}.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}.logo{display:flex;align-items:center;gap:10px;font-size:24px;font-weight:800}.logo img{width:34px;height:34px;border-radius:8px}.logo span{background:linear-gradient(90deg,#ffb45e,#00b4d8);-webkit-background-clip:text;background-clip:text;color:transparent}.nav{display:flex;align-items:center;gap:26px}.nav a{font-size:15px;font-weight:500;color:#cfd8e6;transition:.2s}.nav a:hover,.nav a.active{color:#fff}.nav .nav-cta{padding:8px 20px;border-radius:20px;background:linear-gradient(135deg,#ff7a1a,#ff9d2e);color:#fff;font-weight:700}.lang-switch{display:flex;align-items:center;gap:6px;font-size:13px;font-weight:600}.lang-switch a{padding:4px 10px;border-radius:14px;border:1px solid rgba(255,255,255,.3)}.lang-switch a.active{background:#00b4d8;border-color:#00b4d8;color:#0b1f3a}.menu-toggle{display:none;font-size:26px;cursor:pointer}
/* Hero */
.hero{background:radial-gradient(1200px 600px at 80% -10%,#123c6b 0%,transparent 60%),linear-gradient(160deg,#0b1f3a 0%,#0e2d52 55%,#0b1f3a 100%);color:#fff;padding:80px 0 60px;overflow:hidden}.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}.hero h1{font-size:46px;font-weight:900;line-height:1.2;margin-bottom:20px}.hero h1 .grad{background:linear-gradient(90deg,#ffb45e,#00b4d8);-webkit-background-clip:text;background-clip:text;color:transparent}.hero .sub{font-size:18px;color:#c6d7ef;margin-bottom:28px;max-width:560px}.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:28px}.hero-stats{display:flex;gap:32px;flex-wrap:wrap}.hero-stats .stat b{display:block;font-size:28px;font-weight:800;color:#00d0f0}.hero-stats .stat span{font-size:13px;color:#9fb3cc}
/* Client simulator */
.simulator{background:#0f2b4d;border:1px solid rgba(0,180,216,.3);border-radius:18px;box-shadow:0 24px 60px rgba(0,0,0,.5);overflow:hidden;position:relative}.sim-header{display:flex;align-items:center;gap:8px;padding:14px 18px;background:rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.08)}.sim-dot{width:12px;height:12px;border-radius:50%}.sim-dot.r{background:#f87171}.sim-dot.y{background:#fbbf24}.sim-dot.g{background:#34d399}.sim-title{margin-left:10px;font-size:13px;color:#9fb3cc}.sim-body{padding:26px 24px}.sim-connect{display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.05);border-radius:14px;padding:18px 20px;margin-bottom:18px}.sim-connect .s-left{display:flex;align-items:center;gap:14px}.sim-flag{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,#ff7a1a,#00b4d8);display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff}.sim-btn{width:64px;height:64px;border-radius:50%;background:linear-gradient(135deg,#00b4d8,#0096c7);display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;font-size:15px;box-shadow:0 0 0 10px rgba(0,180,216,.18);animation:pulse 2s infinite}.sim-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.sim-card{background:rgba(255,255,255,.05);border-radius:12px;padding:14px;text-align:center}.sim-card b{display:block;font-size:20px;color:#8ee9ff}.sim-card span{font-size:12px;color:#9fb3cc}.sim-nodes{margin-top:16px}.sim-node{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;background:rgba(255,255,255,.04);border-radius:10px;margin-bottom:8px;font-size:14px}.sim-node .pct{font-weight:700;color:#00d0f0}.sim-node .bar{flex:1;height:6px;background:rgba(255,255,255,.1);border-radius:3px;margin:0 12px;overflow:hidden}.sim-node .bar i{display:block;height:100%;background:linear-gradient(90deg,#00b4d8,#ff7a1a);border-radius:3px}@keyframes pulse{0%,100%{box-shadow:0 0 0 10px rgba(0,180,216,.18)}50%{box-shadow:0 0 0 16px rgba(0,180,216,.07)}}
/* Features */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.feature-card{background:#fff;border-radius:16px;padding:28px;box-shadow:0 4px 20px rgba(0,0,0,.05);transition:.25s}.feature-card:hover{transform:translateY(-6px);box-shadow:0 12px 32px rgba(0,0,0,.1)}.feature-icon{width:54px;height:54px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:16px}.feature-card h3{font-size:19px;font-weight:700;margin-bottom:10px;color:#0b1f3a}.feature-card p{font-size:15px;color:#5b6478}.ic-1{background:#fff0e0}.ic-2{background:#e0f7fc}.ic-3{background:#e2f8e9}.ic-4{background:#e6edf8}.ic-5{background:#fde7ef}.ic-6{background:#fef3c7}
/* Announcement */
.announce{background:#0b1f3a;color:#fff}.announce-list{max-width:820px;margin:0 auto}.announce-item{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.08)}.announce-item:last-child{border:none}.announce-date{flex-shrink:0;width:90px;text-align:center;background:rgba(255,122,26,.22);border-radius:10px;padding:8px 6px}.announce-date b{display:block;font-size:22px;color:#ffb45e}.announce-date span{font-size:12px;color:#9fb3cc}.announce-item h3{font-size:17px;font-weight:700;margin-bottom:4px}.announce-item p{font-size:14px;color:#c6d7ef}
/* Trust */
.trust{background:#fff}.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}.trust-item{padding:24px;border-radius:14px;background:#f8fafc}.trust-item b{display:block;font-size:30px;color:#ff7a1a;font-weight:800}.trust-item span{font-size:14px;color:#5b6478}
/* Scenarios */
.scenarios-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.scenario{background:#fff;border-radius:16px;padding:26px;box-shadow:0 4px 20px rgba(0,0,0,.05)}.scenario h3{font-size:18px;font-weight:700;margin-bottom:10px;color:#0b1f3a}.scenario p{font-size:15px;color:#5b6478}
/* News tabs */
.news-tabs{display:flex;justify-content:center;gap:12px;margin-bottom:36px;flex-wrap:wrap}.news-tab{padding:10px 22px;border-radius:24px;background:#e5e9f0;font-weight:600;font-size:15px;color:#374151;transition:.2s}.news-tab.active,.news-tab:hover{background:linear-gradient(135deg,#ff7a1a,#ff9d2e);color:#fff}.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.news-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.05);transition:.25s}.news-card:hover{transform:translateY(-6px)}.news-card img{height:170px;width:100%;object-fit:cover}.news-card .nc-body{padding:20px}.news-card .nc-tag{font-size:12px;margin-bottom:8px}.news-card h3{font-size:17px;font-weight:700;margin-bottom:8px;line-height:1.4}.news-card p{font-size:14px;color:#5b6478}.news-card .nc-meta{font-size:12px;color:#94a3b8;margin-top:10px}
/* Reviews */
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.review{background:#fff;border-radius:16px;padding:26px;box-shadow:0 4px 20px rgba(0,0,0,.05)}.review .stars{color:#f59e0b;font-size:16px;margin-bottom:10px}.review p{font-size:15px;color:#374151;margin-bottom:14px}.review .user{display:flex;align-items:center;gap:10px}.review .avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#ff7a1a,#00b4d8);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700}.review .user b{font-size:14px}.review .user span{font-size:12px;color:#94a3b8;display:block}
/* Download */
.download-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}.dl-item{background:#fff;border-radius:16px;padding:26px 18px;text-align:center;box-shadow:0 4px 20px rgba(0,0,0,.05);transition:.25s;display:flex;flex-direction:column;gap:12px}.dl-item:hover{transform:translateY(-6px)}.dl-icon{width:60px;height:60px;margin:0 auto;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:30px;background:#fff0e0}.dl-item b{font-size:16px}.dl-item span{font-size:12px;color:#94a3b8}.dl-item a.btn{font-size:13px;padding:10px 16px}
/* FAQ */
.faq-list{max-width:820px;margin:0 auto}.faq-item{background:#fff;border-radius:14px;margin-bottom:16px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.05)}.faq-item summary{padding:20px 24px;font-weight:700;font-size:17px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;color:#0b1f3a;list-style:none}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary .ico{color:#ff7a1a;font-size:20px}.faq-item[open] summary{border-bottom:1px solid #f0f2f6}.faq-a{padding:20px 24px;color:#4b5563;font-size:15px}.faq-a ol{padding-left:20px;list-style:decimal}.faq-a ol li{margin-bottom:8px}.faq-a h4{color:#0b1f3a;margin:16px 0 8px;font-size:16px}.faq-cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.faq-cat{background:#fff;border-radius:16px;padding:26px;box-shadow:0 4px 20px rgba(0,0,0,.05);transition:.25s}.faq-cat:hover{transform:translateY(-4px)}.faq-cat h3{font-size:18px;font-weight:700;margin-bottom:8px;color:#0b1f3a}.faq-cat p{font-size:14px;color:#5b6478;margin-bottom:14px}
/* CTA */
.cta{background:linear-gradient(135deg,#ff7a1a,#0096c7);color:#fff;text-align:center;padding:70px 0}.cta h2{font-size:34px;font-weight:800;margin-bottom:14px}.cta p{font-size:17px;margin-bottom:28px;opacity:.95}.cta .btn{background:#fff;color:#ff7a1a}
/* Footer */
.site-footer{background:#0b1f3a;color:#9fb3cc;padding:56px 0 24px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px}.footer-grid h4{color:#fff;font-size:16px;margin-bottom:16px}.footer-grid a{display:block;font-size:14px;margin-bottom:10px;color:#9fb3cc;transition:.2s}.footer-grid a:hover{color:#00d0f0}.footer-logo{font-size:22px;font-weight:800;color:#fff;margin-bottom:12px}.footer-logo span{background:linear-gradient(90deg,#ffb45e,#00b4d8);-webkit-background-clip:text;background-clip:text;color:transparent}.footer-grid p{font-size:14px}.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:20px;text-align:center;font-size:13px}.footer-sitemap{text-align:center;margin-bottom:12px}.footer-sitemap a{font-size:13px;color:#9fb3cc;margin:0 6px}.footer-sitemap a:hover{color:#00d0f0}
/* Page hero (inner) */
.page-hero{background:linear-gradient(160deg,#0b1f3a 0%,#0e2d52 60%,#0b1f3a 100%);color:#fff;padding:64px 0;text-align:center}.page-hero h1{font-size:38px;font-weight:900;margin-bottom:14px}.page-hero p{font-size:17px;color:#c6d7ef;max-width:680px;margin:0 auto}
/* Breadcrumb */
.breadcrumb{max-width:1200px;margin:0 auto;padding:20px;font-size:14px;color:#6b7280}.breadcrumb a{color:#ff7a1a}.breadcrumb span{margin:0 8px;color:#9ca3af}
/* Article */
.article-wrap{max-width:820px;margin:0 auto;padding:0 20px 72px}.article-wrap h1{font-size:32px;font-weight:900;line-height:1.3;margin-bottom:16px;color:#0b1f3a}.article-meta{display:flex;gap:16px;align-items:center;font-size:14px;color:#6b7280;margin-bottom:28px;padding-bottom:20px;border-bottom:1px solid #e5e7eb}.article-body h2{font-size:24px;font-weight:800;color:#0b1f3a;margin:36px 0 16px;padding-left:14px;border-left:4px solid #ff7a1a}.article-body p{font-size:16px;color:#374151;margin-bottom:18px;text-align:justify}.article-body img{width:100%;border-radius:14px;margin:20px 0}.article-nav{display:flex;justify-content:space-between;gap:16px;margin-top:40px;padding-top:24px;border-top:1px solid #e5e7eb}.article-nav a{font-size:14px;color:#ff7a1a}.article-nav a:hover{text-decoration:underline}.back-list{display:inline-block;margin-top:24px;font-size:14px;color:#ff7a1a;font-weight:600}
/* 404 */
.err-page{min-height:70vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px 20px}.err-page h1{font-size:120px;font-weight:900;background:linear-gradient(135deg,#ff7a1a,#00b4d8);-webkit-background-clip:text;background-clip:text;color:transparent}.err-page p{font-size:20px;color:#374151;margin-bottom:24px}.err-page .countdown{font-size:16px;color:#6b7280;margin-top:16px}
/* Responsive */
@media(max-width:960px){.hero-inner{grid-template-columns:1fr}.features-grid,.scenarios-grid,.news-grid,.reviews-grid,.download-grid,.faq-cat-grid{grid-template-columns:repeat(2,1fr)}.trust-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.nav{display:none}.menu-toggle{display:block}}
@media(max-width:640px){.features-grid,.scenarios-grid,.news-grid,.reviews-grid,.download-grid,.faq-cat-grid,.trust-grid,.footer-grid{grid-template-columns:1fr}.hero h1{font-size:32px}.section-head h2{font-size:26px}}