:root{
  --c1:#1a56db;--c2:#1e40af;--c3:#e8f0fe;--c4:#f8fafc;--c5:#0f172a;--c6:#334155;--c7:#64748b;
  --c8:#10b981;--c9:#f59e0b;--ca:#ef4444;--cb:#8b5cf6;--cc:#ec4899;--cd:#06b6d4;
  --r:8px;--r2:12px;--r3:16px;
  --s:0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.06);
  --s2:0 4px 6px rgba(0,0,0,.07),0 2px 4px rgba(0,0,0,.06);
  --s3:0 10px 25px rgba(0,0,0,.1),0 4px 10px rgba(0,0,0,.06);
  --s4:0 20px 50px rgba(0,0,0,.12);
  --mw:1200px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--c5);background:var(--c4);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--c1);text-decoration:none;transition:color .2s}
a:hover{color:var(--c2)}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
h1,h2,h3,h4,h5{line-height:1.3;color:var(--c5)}
::selection{background:var(--c1);color:#fff}

.container{max-width:var(--mw);margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}

.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:var(--r);font-weight:600;font-size:1rem;cursor:pointer;transition:all .25s;border:none;text-align:center;justify-content:center;white-space:nowrap;line-height:1.4}
.btn-p{background:var(--c1);color:#fff}
.btn-p:hover{background:var(--c2);color:#fff;transform:translateY(-1px);box-shadow:var(--s2)}
.btn-o{border:2px solid var(--c1);color:var(--c1);background:transparent}
.btn-o:hover{background:var(--c1);color:#fff;transform:translateY(-1px)}
.btn-g{background:var(--c8);color:#fff}
.btn-g:hover{background:#059669;color:#fff;transform:translateY(-1px);box-shadow:var(--s2)}
.btn-w{background:#fff;color:var(--c1);border:2px solid #e2e8f0}
.btn-w:hover{border-color:var(--c1);box-shadow:var(--s2)}
.btn-lg{padding:16px 36px;font-size:1.1rem;border-radius:var(--r2)}
.btn-sm{padding:8px 18px;font-size:.88rem}

.tag{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:20px;font-size:.78rem;font-weight:600;white-space:nowrap}
.tag-new{background:#fef3c7;color:#92400e}
.tag-hot{background:#fee2e2;color:#991b1b}
.tag-ai{background:#ede9fe;color:#5b21b6}
.tag-green{background:#d1fae5;color:#065f46}

.badge{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid #e2e8f0;border-radius:30px;padding:6px 18px;font-size:.9rem;color:var(--c6);box-shadow:var(--s)}
.badge .dot{width:8px;height:8px;background:var(--c8);border-radius:50%;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid #e2e8f0}
.nav .container{display:flex;align-items:center;justify-content:space-between;height:64px}
.nav-logo{
  font-size:1.35rem;
  font-weight:800;
  color:var(--c5);
  display:flex;
  align-items:center;
  /* gap:6px; */
  letter-spacing:-.02em
}
.nav-logo .hl{color:var(--c1)}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{color:var(--c6);font-weight:500;font-size:.93rem;position:relative;padding:4px 0}
.nav-links a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--c1);border-radius:1px;transition:width .25s}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-links a.active{color:var(--c1)}
.nav-cta{display:flex;gap:10px;align-items:center}
.menu-toggle{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--c5);padding:6px;line-height:1}

.sec{padding:80px 0}
.sec-sm{padding:56px 0}
.sec-hd{text-align:center;margin-bottom:56px}
.sec-hd h2{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:700;margin-bottom:12px}
.sec-hd p{color:var(--c7);font-size:1.05rem;max-width:600px;margin:0 auto;line-height:1.6}
.sec-label{display:inline-block;font-size:.85rem;font-weight:700;color:var(--c1);text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px}

.page-hero{padding:72px 0 56px;background:linear-gradient(135deg,#eff6ff 0%,#f0f9ff 50%,#ecfdf5 100%);text-align:center}
.page-hero h1{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:800;margin-bottom:16px}
.page-hero h1 .hl{background:linear-gradient(135deg,var(--c1),var(--cb));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.page-hero p{color:var(--c6);font-size:1.1rem;max-width:640px;margin:0 auto;line-height:1.7}

.hero{position:relative;overflow:hidden;background:linear-gradient(160deg,#eff6ff 0%,#f0f9ff 40%,#ecfdf5 100%)}
.hero::before{content:'';position:absolute;top:-30%;right:-15%;width:700px;height:700px;background:radial-gradient(circle,rgba(26,86,219,.05) 0%,transparent 70%);border-radius:50%;pointer-events:none}
.hero::after{content:'';position:absolute;bottom:-20%;left:-10%;width:500px;height:500px;background:radial-gradient(circle,rgba(139,92,246,.04) 0%,transparent 70%);border-radius:50%;pointer-events:none}
.hero .container{position:relative;z-index:1;padding-top:72px;padding-bottom:64px}
.hero-badge{margin-bottom:24px}
.hero h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:800;margin-bottom:20px;letter-spacing:-.02em}
.hero h1 .hl{background:linear-gradient(135deg,var(--c1),var(--cb));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero>div>p,.hero .container>p{font-size:1.12rem;color:var(--c6);max-width:640px;margin-bottom:32px;line-height:1.7}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:40px}
.hero-stats{display:flex;gap:40px;flex-wrap:wrap}
.hero-stat{text-align:center}
.hero-stat .num{font-size:1.8rem;font-weight:800;color:var(--c1)}
.hero-stat .label{font-size:.85rem;color:var(--c7);margin-top:2px}

.card{background:#fff;border-radius:var(--r2);box-shadow:var(--s);border:1px solid #f1f5f9;transition:all .3s}
.card:hover{transform:translateY(-4px);box-shadow:var(--s3)}
.card-body{padding:28px}

.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.grid-auto{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}

.adv-card{background:#fff;border-radius:var(--r2);padding:32px 28px;box-shadow:var(--s);border:1px solid #f1f5f9;transition:all .3s;position:relative;overflow:hidden}
.adv-card:hover{transform:translateY(-4px);box-shadow:var(--s3)}
.adv-card .icon{width:52px;height:52px;border-radius:var(--r2);display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:18px;flex-shrink:0}
.adv-card .icon.c1{background:#eff6ff;color:var(--c1)}
.adv-card .icon.c2{background:#ecfdf5;color:var(--c8)}
.adv-card .icon.c3{background:#f5f3ff;color:var(--cb)}
.adv-card .icon.c4{background:#fff7ed;color:var(--c9)}
.adv-card .icon.c5{background:#fdf2f8;color:var(--cc)}
.adv-card .icon.c6{background:#ecfeff;color:var(--cd)}
.adv-card h3{font-size:1.12rem;margin-bottom:8px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.adv-card p{color:var(--c7);font-size:.93rem;line-height:1.65}

.price-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;align-items:stretch}
.price-card{background:#fff;border-radius:var(--r2);padding:36px 28px;box-shadow:var(--s);border:2px solid #f1f5f9;transition:all .3s;display:flex;flex-direction:column;position:relative}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--s3)}
.price-card.featured{border-color:var(--c1);box-shadow:var(--s2);transform:scale(1.03)}
.price-card.featured:hover{transform:scale(1.03) translateY(-4px)}
.price-card.featured::before{content:'推荐';position:absolute;top:12px;right:12px;background:var(--c1);color:#fff;padding:3px 12px;border-radius:20px;font-size:.75rem;font-weight:600}
.price-card .name{font-size:1.1rem;font-weight:700;margin-bottom:4px}
.price-card .desc{color:var(--c7);font-size:.85rem;margin-bottom:16px}
.price-card .price{font-size:2.2rem;font-weight:800;color:var(--c5);margin-bottom:4px}
.price-card .price small{font-size:.9rem;font-weight:400;color:var(--c7)}
.price-card .unit{color:var(--c7);font-size:.85rem;margin-bottom:20px}
.price-card ul{flex:1;margin-bottom:20px}
.price-card li{padding:8px 0;color:var(--c6);font-size:.9rem;display:flex;align-items:flex-start;gap:8px;border-bottom:1px solid #f8fafc}
.price-card li::before{content:'✓';color:var(--c8);font-weight:700;flex-shrink:0}
.price-card .btn{width:100%}

.trial-banner{background:linear-gradient(135deg,var(--c1),var(--cb));color:#fff;padding:56px 0;text-align:center;position:relative;overflow:hidden}
.trial-banner::before{content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='30' cy='30' r='1.5' fill='rgba(255,255,255,.06)'/%3E%3C/svg%3E") repeat}
.trial-banner .container{position:relative;z-index:1}
.trial-banner h2{font-size:1.8rem;margin-bottom:12px;color:#fff}
.trial-banner p{opacity:.9;margin-bottom:24px;font-size:1.05rem}
.trial-banner .price-big{font-size:3rem;font-weight:800;display:inline-block;margin:0 4px}

.sdk-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:16px;margin-bottom:40px}
.sdk-item{background:#fff;border-radius:var(--r2);padding:24px 16px;text-align:center;box-shadow:var(--s);border:1px solid #f1f5f9;transition:all .3s}
.sdk-item:hover{transform:translateY(-3px);box-shadow:var(--s2);border-color:var(--c1)}
.sdk-item .lang{font-size:1.1rem;font-weight:700;margin-bottom:4px;color:var(--c5)}
.sdk-item .ver{font-size:.8rem;color:var(--c7)}
.sdk-item .ico{font-size:2rem;margin-bottom:8px}

.repo-cards{display:flex;gap:20px;flex-wrap:wrap;justify-content:center}
.repo-card{display:flex;align-items:center;gap:12px;background:#fff;border:2px solid #e2e8f0;border-radius:var(--r2);padding:18px 32px;transition:all .3s;font-weight:600;color:var(--c5);font-size:1.05rem}
.repo-card:hover{border-color:var(--c5);box-shadow:var(--s2);color:var(--c5);transform:translateY(-2px)}
.repo-card svg{width:26px;height:26px;flex-shrink:0}

.mcp-section{background:var(--c5);color:#fff;padding:80px 0;position:relative;overflow:hidden}
.mcp-section::before{content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5 L55 50 L5 50 Z' fill='none' stroke='rgba(255,255,255,.025)' stroke-width='1'/%3E%3C/svg%3E") repeat}
.mcp-section .container{position:relative;z-index:1}
.mcp-section .sec-hd h2{color:#fff}
.mcp-section .sec-hd p{color:#94a3b8}
.mcp-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.mcp-info h3{font-size:1.5rem;margin-bottom:16px;color:#e2e8f0}
.mcp-info p{color:#94a3b8;margin-bottom:20px;line-height:1.7}
.mcp-info .feat-list li{padding:10px 0;color:#cbd5e1;display:flex;align-items:center;gap:10px;font-size:.95rem}
.mcp-info .feat-list li::before{content:'▸';color:var(--cb)}
.mcp-code{background:#1e293b;border-radius:var(--r2);padding:28px;overflow-x:auto;font-family:'SF Mono','Fira Code','Cascadia Code','Consolas',monospace;font-size:.84rem;line-height:1.8;color:#e2e8f0;border:1px solid #334155}
.mcp-code .kw{color:#93c5fd}
.mcp-code .str{color:#86efac}
.mcp-code .cmt{color:#64748b}
.mcp-code .fn{color:#c4b5fd}

.scene-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:20px}
.scene-card{background:#fff;border-radius:var(--r2);padding:28px 20px;text-align:center;box-shadow:var(--s);border:1px solid #f1f5f9;transition:all .3s}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--s3)}
.scene-card .emoji{font-size:2.2rem;margin-bottom:12px}
.scene-card h4{font-size:1rem;margin-bottom:6px}
.scene-card p{font-size:.85rem;color:var(--c7);line-height:1.5}

.blog-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px}
.blog-card{background:#fff;border-radius:var(--r2);overflow:hidden;box-shadow:var(--s);border:1px solid #f1f5f9;transition:all .3s}
.blog-card:hover{transform:translateY(-4px);box-shadow:var(--s3)}
.blog-card .img{height:180px;background:linear-gradient(135deg,#eff6ff,#f5f3ff);display:flex;align-items:center;justify-content:center;font-size:3rem}
.blog-card .body{padding:22px}
.blog-card .meta{display:flex;gap:12px;font-size:.8rem;color:var(--c7);margin-bottom:8px;flex-wrap:wrap;align-items:center}
.blog-card h4{font-size:1.05rem;margin-bottom:8px;line-height:1.5}
.blog-card h4 a{color:var(--c5)}
.blog-card h4 a:hover{color:var(--c1)}
.blog-card .excerpt{font-size:.88rem;color:var(--c7);line-height:1.6}

.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:var(--r);margin-bottom:12px;box-shadow:var(--s);border:1px solid #f1f5f9;overflow:hidden}
.faq-q{padding:18px 24px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;color:var(--c5);font-size:1rem;user-select:none;transition:background .2s}
.faq-q:hover{background:#f8fafc}
.faq-q::after{content:'+';font-size:1.3rem;color:var(--c7);transition:transform .3s;flex-shrink:0;margin-left:12px}
.faq-item.open .faq-q::after{content:'−';color:var(--c1)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s ease}
.faq-item.open .faq-a{max-height:400px;padding:0 24px 20px}
.faq-a p{color:var(--c6);font-size:.93rem;line-height:1.7}

.contact-section{background:#fff}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-info h3{font-size:1.3rem;margin-bottom:12px}
.contact-info>p{color:var(--c7);margin-bottom:20px;line-height:1.7}
.contact-item{display:flex;align-items:center;gap:12px;margin-bottom:14px;color:var(--c6)}
.contact-item .ico{width:42px;height:42px;border-radius:var(--r);background:var(--c3);display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex-shrink:0}

.compare-table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--r2);overflow:hidden;box-shadow:var(--s)}
.compare-table th,.compare-table td{padding:14px 18px;text-align:center;border-bottom:1px solid #f1f5f9}
.compare-table th{background:var(--c4);font-weight:700;font-size:.9rem;color:var(--c5)}
.compare-table th:first-child,.compare-table td:first-child{text-align:left;font-weight:600}
.compare-table td{font-size:.9rem;color:var(--c6)}
.compare-table .yes{color:var(--c8);font-weight:700}
.compare-table .no{color:var(--c7)}
.compare-table tr:hover td{background:#f8fafc}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}

.breadcrumb{display:flex;gap:8px;align-items:center;font-size:.88rem;color:var(--c7);margin-bottom:8px;flex-wrap:wrap}
.breadcrumb a{color:var(--c7)}
.breadcrumb a:hover{color:var(--c1)}
.breadcrumb .sep{color:#cbd5e1}

.footer{background:var(--c5);color:#94a3b8;padding:56px 0 28px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:36px}
.footer h4{color:#fff;font-size:1rem;margin-bottom:16px}
.footer a{color:#94a3b8;font-size:.9rem;display:block;padding:5px 0;transition:color .2s}
.footer a:hover{color:#fff}
.footer-icp a{display:inline!important;padding:0!important}
.footer .brand{font-size:1.3rem;font-weight:800;color:#fff;margin-bottom:12px}
.footer .brand .hl{color:var(--c1)}
.footer-bot{border-top:1px solid #1e293b;padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:nowrap;gap:12px;font-size:.85rem}

@media(max-width:1024px){
  .mcp-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:768px){
  .nav-links,.nav-cta{display:none}
  .menu-toggle{display:block}
  .nav.open .nav-links{display:flex;flex-direction:column;position:absolute;top:64px;left:0;right:0;background:#fff;padding:20px;gap:14px;border-bottom:1px solid #e2e8f0;box-shadow:var(--s3);z-index:99}
  .nav.open .nav-cta{display:flex;flex-direction:column;padding:0 20px 20px;background:#fff;position:absolute;top:calc(64px + 280px);left:0;right:0;border-bottom:1px solid #e2e8f0;z-index:99}
  .hero .container{padding-top:48px;padding-bottom:48px}
  .hero h1{font-size:1.8rem}
  .hero-stats{gap:20px}
  .hero-stat .num{font-size:1.4rem}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .grid2,.grid3,.grid4{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .price-card.featured{transform:none}
  .price-card.featured:hover{transform:translateY(-4px)}
  .sec{padding:56px 0}
  .page-hero{padding:48px 0 40px}
  .blog-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .sdk-grid{grid-template-columns:repeat(3,1fr)}
  .repo-cards{flex-direction:column;align-items:stretch}
  .repo-card{justify-content:center}
}
@media(max-width:480px){
  .container{padding:0 16px}
  .hero h1{font-size:1.55rem}
  .hero>div>p,.hero .container>p{font-size:1rem}
  .hero-stats{justify-content:center}
  .price-grid{grid-template-columns:1fr}
  .sdk-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr}
  .footer-bot{flex-direction:column;text-align:center}
  .scene-grid{grid-template-columns:1fr 1fr}
  .trial-banner h2{font-size:1.4rem}
  .trial-banner .price-big{font-size:2.2rem}
  .btn-lg{padding:14px 24px;font-size:1rem}
}