:root{--navy-950:#060D24;--navy-900:#0B1B3F;--navy-700:#16305E;--blue-600:#1E6BFF;--blue-500:#2563EB;--blue-400:#4C8DFF;--blue-100:#DBEAFE;--ice-50:#EFF5FF;--amber-400:#FBBF24;--green-500:#22C55E;--red-500:#EF4444;--slate-500:#64748B;--slate-400:#94A3B8;--slate-300:#CBD5E1;--slate-200:#E2E8F0;--slate-100:#F1F5F9;--shadow-card:0 8px 30px rgba(11,27,63,0.08);--shadow-card-hover:0 16px 44px rgba(11,27,63,0.14);--shadow-blue:0 8px 30px rgba(30,107,255,0.45);--font-cn:'Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei','微软雅黑',sans-serif;--font-num:'Space Grotesk','Noto Sans SC','PingFang SC',sans-serif;}*{margin:0;padding:0;box-sizing:border-box;}html,body{overflow-x:hidden;}@supports(overflow:clip){html,body{overflow-x:clip;}}html{scroll-behavior:smooth;}section[id],footer{scroll-margin-top:72px;}body{font-family:var(--font-cn);font-size:16px;line-height:1.75;color:var(--navy-900);background:var(--navy-950);-webkit-font-smoothing:antialiased;}img{max-width:100%;height:auto;}ul,ol{list-style:none;}a{color:inherit;text-decoration:none;}button{font-family:inherit;cursor:pointer;background:none;border:none;color:inherit;}.container{max-width:72rem;margin:0 auto;padding-left:20px;padding-right:20px;}.mt-5{margin-top:20px;}.mt-14{margin-top:56px;}.mt-16{margin-top:64px;}.text-white{color:#fff;}.text-blue{color:var(--blue-600);}.text-blue-400{color:var(--blue-400);}.ic-red{color:var(--red-500);flex-shrink:0;}.ic-green{color:var(--green-500);flex-shrink:0;}h1,h2,h3{line-height:1.2;}h2{font-size:1.875rem;font-weight:900;letter-spacing:-0.01em;}h3{font-size:1.25rem;font-weight:700;}@media(min-width:768px){h2{font-size:3rem;}h3{font-size:1.5rem;}}.tag{display:inline-flex;align-items:center;padding:6px 16px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:0.2em;background:var(--blue-100);color:var(--blue-600);}.tag-dark{background:rgba(30,107,255,0.15);color:var(--blue-400);box-shadow:inset 0 0 0 1px rgba(59,130,246,0.3);}.tag-glass{background:rgba(255,255,255,0.1);color:#fff;box-shadow:inset 0 0 0 1px rgba(255,255,255,0.2);}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;font-weight:700;text-align:center;transition:transform 0.3s,background 0.3s,box-shadow 0.3s,border-color 0.3s,color 0.3s;}.btn-primary{background:var(--blue-600);color:#fff;box-shadow:var(--shadow-blue);}.btn-primary:hover{background:var(--blue-500);transform:scale(1.05);}.btn-ghost{border:1px solid rgba(255,255,255,0.25);color:#fff;}.btn-ghost:hover{border-color:var(--blue-500);color:var(--blue-400);}.btn-outline{border:2px solid var(--slate-200);color:var(--navy-900);}.btn-outline:hover{border-color:var(--slate-300);background:#F8FAFC;}.btn-sm{padding:8px 16px;font-size:14px;}.btn-lg{padding:14px 28px;font-size:16px;}.btn-xl{padding:16px 32px;font-size:18px;font-weight:900;}.btn-block{width:100%;padding:14px 24px;font-size:16px;}.section{padding:80px 0;}@media(min-width:768px){.section{padding:112px 0;}}.section-ice{background:var(--ice-50);color:var(--navy-900);}.section-white{background:#fff;color:var(--navy-900);}.section-navy900{background:var(--navy-900);color:#fff;}.section-navy950{background:var(--navy-950);color:#fff;}.section-head{max-width:55rem;margin:0 auto;text-align:center;}.section-head h2{margin-top:20px;}.lead{margin-top:24px;font-size:16px;line-height:1.75;color:var(--slate-500);}.lead-dark{margin-top:24px;font-size:16px;line-height:1.75;color:var(--slate-300);max-width:28rem;}@media(min-width:768px){.lead,.lead-dark{font-size:18px;}}.grid{display:grid;gap:20px;}@media(min-width:768px){.grid-3{grid-template-columns:repeat(3,1fr);}}.card{background:#fff;border-radius:16px;padding:28px;box-shadow:var(--shadow-card);transition:transform 0.3s,box-shadow 0.3s;}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);}.card-ice{background:var(--ice-50);box-shadow:none;}.card-ice:hover{box-shadow:var(--shadow-card);}.card-title{margin-top:20px;}.card-body{margin-top:12px;font-size:16px;line-height:1.75;color:var(--slate-500);}.card-body strong{color:var(--navy-900);}.icon-badge{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:12px;background:var(--blue-100);color:var(--blue-600);transition:background 0.2s,color 0.2s,transform 0.5s;}.card:hover .icon-badge{background:var(--blue-600);color:#fff;}.icon-badge-solid{background:var(--blue-600);color:#fff;}.icon-badge-amber{background:rgba(251,191,36,0.15);color:var(--amber-400);width:44px;height:44px;}.icon-badge-glass{background:rgba(255,255,255,0.15);color:#fff;width:44px;height:44px;}.icon-rotate:hover{transform:rotate(360deg);}.big-num{margin-top:20px;font-size:3rem;font-weight:700;font-family:var(--font-num);color:var(--navy-900);}.big-suffix{font-size:1.25rem;font-family:var(--font-cn);font-weight:700;}.hook{margin-top:56px;display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center;}.hook-left{align-items:flex-start;text-align:left;}.hook-text{font-size:18px;font-weight:700;color:var(--blue-600);}.hook-dark{color:var(--blue-400);}.hook-icon{color:var(--blue-600);}.hook-icon-dark{color:var(--blue-400);}@media(min-width:768px){.hook-text{font-size:20px;}}.bounce{animation:bounce 1.6s infinite;}@keyframes bounce{0%,100%{transform:translateY(0);}50%{transform:translateY(8px);}}.navbar{position:fixed;top:0;left:0;right:0;z-index:50;height:64px;border-bottom:1px solid transparent;transition:background 0.3s,border-color 0.3s;}.navbar.scrolled{background:rgba(6,13,36,0.7);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom-color:rgba(255,255,255,0.05);}.navbar-inner{height:100%;display:flex;align-items:center;justify-content:space-between;}.navbar-brand{display:flex;align-items:center;gap:10px;}.navbar-logo{height:32px;width:auto;}.navbar-sub{display:none;font-size:16px;font-weight:500;letter-spacing:0.15em;color:var(--slate-300);}@media(min-width:640px){.navbar-sub{display:inline;}}.navbar-nav{display:flex;align-items:center;gap:24px;}.nav-link{display:none;font-size:14px;font-weight:500;color:var(--slate-300);transition:color 0.2s;}.nav-link:hover{color:#fff;}@media(min-width:768px){.nav-link{display:inline;}}.nav-cta{box-shadow:0 4px 20px rgba(30,107,255,0.4);}.nav-toggle{display:flex;flex-direction:column;justify-content:center;width:40px;height:40px;padding:8px;-webkit-appearance:none;appearance:none;border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.12);border-radius:10px;}.nav-toggle span{display:block;height:2px;width:100%;background:#fff !important;border-radius:2px;transition:transform 0.25s,opacity 0.25s;}.nav-toggle span+span{margin-top:5px;}.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px)rotate(45deg);}.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px)rotate(-45deg);}@media(min-width:768px){.nav-toggle{display:none;}}@media(max-width:767px){.navbar-nav{position:absolute;top:64px;left:0;right:0;flex-direction:column;align-items:stretch;gap:4px;background:rgba(6,13,36,0.96);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:12px 20px 20px;border-bottom:1px solid rgba(255,255,255,0.08);display:none;}.navbar-nav.open{display:flex;}.navbar-nav .nav-link{display:block;padding:12px 8px;font-size:16px;}.navbar-nav .nav-cta{margin-top:8px;padding:12px;}}.hero{position:relative;overflow:hidden;background:var(--navy-950);color:#fff;margin-top:0;}.hero-grid-bg{position:absolute;inset:0;opacity:0.06;background-image:linear-gradient(rgba(255,255,255,.6)1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6)1px,transparent 1px);background-size:48px 48px;}.hero-glow{position:absolute;right:-10%;top:50%;transform:translateY(-50%);width:80vmin;height:80vmin;border-radius:50%;background:radial-gradient(circle,rgba(30,107,255,0.35),transparent 70%);animation:glow-breathe 6s ease-in-out infinite;}.hero-orb-wrap{position:absolute;top:0;right:0;bottom:0;left:0;overflow:hidden;pointer-events:none;}.hero-orb{position:absolute;top:50%;transform:translateY(-50%);right:-30%;width:130%;max-width:none;opacity:0.5;mix-blend-mode:screen;animation:float 8s ease-in-out infinite;}@media(min-width:640px){.hero-orb{right:-15%;width:90%;}}@media(min-width:1024px){.hero-orb{right:-8%;width:62%;}}@keyframes float{0%,100%{transform:translateY(calc(-50% - 16px));}50%{transform:translateY(calc(-50%+16px));}}@keyframes float-y{0%,100%{transform:translateY(-12px);}50%{transform:translateY(12px);}}@keyframes glow-breathe{0%,100%{opacity:0.25;}50%{opacity:0.4;}}.hero-body{position:relative;padding-top:64px;}.hero-grid{min-height:100svh;display:grid;align-items:center;gap:48px;padding:80px 0;}@media(min-width:1024px){.hero-grid{grid-template-columns:1fr 1fr;gap:32px;}}.hero-title{font-size:2.25rem;font-weight:900;line-height:1.15;letter-spacing:-0.02em;margin-top:24px;}.hero-title .line{display:block;}.line-white{color:#fff;}.line-blue{color:var(--blue-500);text-shadow:0 0 24px rgba(30,107,255,0.5);}@media(min-width:768px){.hero-title{font-size:3.75rem;}}@media(min-width:1024px){.hero-title{font-size:4rem;}}.hero-sub{margin-top:24px;max-width:36rem;font-size:16px;line-height:1.75;color:var(--slate-300);}@media(min-width:768px){.hero-sub{font-size:18px;}}.hero-actions{margin-top:32px;display:flex;flex-direction:column;gap:12px;}@media(min-width:640px){.hero-actions{flex-direction:row;}}.hero-platforms{margin-top:48px;}.platforms-label{font-size:12px;font-weight:500;letter-spacing:0.2em;color:var(--slate-400);}.platforms-row{margin-top:16px;display:flex;flex-wrap:wrap;align-items:center;gap:16px 28px;}.platform-logo{height:28px;width:auto;opacity:0.6;filter:brightness(0)invert(1);transition:opacity 0.3s;}.platform-logo:hover{opacity:1;}.hero-chat-col{display:flex;justify-content:center;}@media(min-width:1024px){.hero-chat-col{justify-content:flex-end;}}.chat-card{width:100%;max-width:28rem;border-radius:24px;background:#fff;padding:20px;color:var(--navy-900);box-shadow:0 25px 50px -12px rgba(0,0,0,0.5);transition:transform 0.2s;will-change:transform;}@media(min-width:768px){.chat-card{padding:24px;}}.chat-head{display:flex;align-items:center;gap:8px;border-bottom:1px solid var(--slate-100);padding-bottom:12px;margin-bottom:16px;}.chat-avatar{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:var(--blue-600);color:#fff;}.chat-head-title{font-size:14px;font-weight:700;}.chat-head-note{margin-left:auto;font-size:12px;color:var(--slate-400);}.chat-msg{width:fit-content;border-radius:16px;padding:10px 16px;font-size:14px;line-height:1.6;}.chat-msg-user{margin-left:auto;margin-bottom:12px;max-width:85%;background:var(--blue-600);color:#fff;font-weight:500;border-bottom-right-radius:4px;}.chat-msg-ai{max-width:92%;background:var(--ice-50);color:var(--navy-900);border-bottom-left-radius:4px;min-height:44px;}.chat-caret{color:var(--blue-600);animation:caret-blink 0.9s steps(2)infinite;}@keyframes caret-blink{50%{opacity:0;}}.chat-alert{margin-top:12px;width:fit-content;border-radius:12px;border:2px solid rgba(239,68,68,0.7);background:#FEF2F2;padding:8px 16px;font-size:14px;font-weight:700;color:var(--red-500);}.chat-foot{margin-top:16px;border-top:1px solid var(--slate-100);padding-top:12px;text-align:center;font-size:12px;font-weight:700;color:rgba(11,27,63,0.7);}.hero-hook{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:8px;padding-bottom:40px;text-align:center;}.hero-hook .hook-text{font-size:18px;}@media(min-width:768px){.hero-hook .hook-text{font-size:20px;}}.hook-arrow{color:var(--blue-400);display:inline-flex;}.define-grid{display:grid;align-items:center;gap:56px;}@media(min-width:1024px){.define-grid{grid-template-columns:1fr 1fr;}}.define-card{margin-top:32px;border-radius:16px;border-left:4px solid var(--blue-600);background:var(--navy-700);padding:24px;font-size:16px;line-height:1.75;color:var(--slate-300);}@media(min-width:768px){.define-card{font-size:18px;}}.contrast-list{margin-top:32px;display:flex;flex-direction:column;gap:16px;}.contrast-list li{display:flex;flex-direction:column;gap:8px;}.contrast-wrong{display:inline-flex;align-items:center;gap:8px;width:fit-content;color:var(--slate-400);}.strike{position:relative;}.strike::after{content:"";position:absolute;left:0;top:50%;height:2px;width:100%;transform:translateY(-50%);background:rgba(239,68,68,0.7);}.contrast-arrow{display:none;color:var(--slate-500);}.contrast-right{display:inline-flex;align-items:center;gap:8px;font-weight:700;color:#fff;}@media(min-width:640px){.contrast-list li{flex-direction:row;align-items:center;gap:16px;}.contrast-arrow{display:inline;}}.define-funnel{margin:0 auto;width:100%;max-width:24rem;}.funnel-layer{position:relative;height:64px;margin:0 auto 12px;display:flex;align-items:center;justify-content:center;width:var(--w);border-radius:12px;font-size:14px;font-weight:700;color:#fff;background:linear-gradient(135deg,rgba(30,107,255,var(--o1))0%,rgba(37,99,235,var(--o2))60%,#0B1B3F 100%);clip-path:polygon(0 0,100% 0,92% 100%,8% 100%);transition:transform 0.3s;cursor:default;}.funnel-layer:hover{transform:scale(1.03);}.funnel-layer::after{content:attr(data-tip);position:absolute;top:-8px;left:50%;transform:translate(-50%,-100%);background:#fff;color:var(--navy-900);font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px;box-shadow:0 8px 20px rgba(0,0,0,.35);white-space:nowrap;opacity:0;pointer-events:none;transition:opacity 0.2s;clip-path:none;}.funnel-layer:hover::after{opacity:1;}@media(min-width:768px){.funnel-layer{height:72px;font-size:16px;}}.funnel-note{margin-top:16px;text-align:center;font-size:12px;letter-spacing:0.2em;color:var(--slate-400);}#geo-funnel{overflow:hidden;}.funnel-grid{display:grid;gap:48px;}@media(min-width:1024px){.funnel-grid{grid-template-columns:1fr 1.2fr;}.funnel-sticky{position:sticky;top:112px;align-self:start;}}.funnel-conclusion{border-radius:16px;border-left:4px solid var(--green-500);background:var(--navy-900);padding:20px;font-size:16px;font-weight:700;line-height:1.75;color:#fff;}.funnel-conclusion-desktop{display:none;margin-top:40px;}.funnel-conclusion-mobile{margin-top:24px;}@media(min-width:768px){.funnel-conclusion-desktop{display:block;}.funnel-conclusion-mobile{display:none;}}.funnel-stack-wrap{position:relative;}.funnel-progress{position:absolute;left:-20px;top:8px;bottom:8px;width:4px;border-radius:999px;background:var(--navy-700);display:none;}.funnel-progress span{display:block;width:100%;height:0;border-radius:999px;background:linear-gradient(to bottom,var(--blue-600),var(--green-500));transition:height 0.5s ease;}@media(min-width:768px){.funnel-progress{display:block;}}.funnel-stack{display:flex;flex-direction:column;gap:16px;}.funnel-card{border-radius:16px;border:1px solid rgba(255,255,255,0.05);background:var(--navy-900);padding:20px;transition:border-color 0.3s,opacity 0.5s,transform 0.5s;}.funnel-card:hover{border-color:rgba(30,107,255,0.4);}@media(min-width:768px){.funnel-card{padding:24px;}}html.js .funnel-card{opacity:0.35;transform:scale(0.98);}html.js .funnel-card.lit{opacity:1;transform:scale(1);}html.js .funnel-card.lit .funnel-num{color:var(--layer-color,var(--blue-600));}.funnel-card-head{display:flex;align-items:center;gap:16px;width:100%;text-align:left;}.funnel-num{font-family:var(--font-num);font-size:1.875rem;font-weight:700;color:#475569;transition:color 0.4s;}@media(min-width:768px){.funnel-num{font-size:2.25rem;}}.funnel-card-text{flex:1;min-width:0;}.funnel-card-name{display:block;font-size:1.25rem;font-weight:700;color:#fff;}.funnel-card-brief{display:block;margin-top:4px;font-size:14px;color:var(--slate-300);}@media(min-width:768px){.funnel-card-name{font-size:1.5rem;}.funnel-card-brief{font-size:16px;}}.funnel-plus{flex-shrink:0;color:var(--slate-400);transition:transform 0.3s;}.funnel-card.open .funnel-plus{transform:rotate(45deg);}.funnel-detail{margin-top:12px;border-top:1px solid rgba(255,255,255,0.1);padding-top:12px;font-size:14px;line-height:1.75;color:var(--slate-300);}html.js .funnel-detail{display:none;}html.js .funnel-card.open .funnel-detail{display:block;}.chain-list{position:relative;margin-top:48px;display:flex;flex-direction:column;gap:16px;}.chain-list::before{content:"";position:absolute;top:8px;bottom:8px;left:22px;width:2px;background:linear-gradient(to bottom,var(--blue-600),rgba(37,99,235,0.2));}.chain-node{display:flex;align-items:center;gap:16px;}.chain-dot{z-index:1;flex-shrink:0;display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;background:var(--blue-600);color:#fff;font-family:var(--font-num);font-size:14px;font-weight:700;}.chain-card{flex:1;border-radius:16px;border:1px solid var(--slate-100);background:#fff;padding:16px;box-shadow:var(--shadow-card);}.chain-name{font-size:14px;font-weight:700;}.chain-tip{margin-top:4px;font-size:12px;color:var(--slate-500);}@media(min-width:1024px){.chain-list{flex-direction:row;flex-wrap:wrap;gap:16px;}.chain-list::before{left:0;right:0;top:50%;bottom:auto;width:auto;height:2px;transform:translateY(-50%);background:linear-gradient(to right,var(--blue-600),rgba(37,99,235,0.3));}.chain-node{flex-direction:column;width:calc(25% - 12px);text-align:center;}.chain-card{width:100%;transition:transform 0.3s,box-shadow 0.3s;}.chain-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);}}.chain-darkcard{margin-top:24px;border-radius:24px;background:var(--navy-900);color:#fff;padding:32px;text-align:center;font-size:16px;font-weight:700;line-height:1.75;}@media(min-width:768px){.chain-darkcard{font-size:18px;}}.chain-badges{margin-top:48px;text-align:center;}.badge-row{margin-top:16px;display:flex;flex-wrap:wrap;justify-content:center;gap:12px;}.badge{border-radius:999px;background:var(--blue-100);color:var(--blue-600);padding:6px 16px;font-size:14px;font-weight:700;transition:transform 0.2s;}.badge:hover{transform:scale(1.08);}.badge-dark{background:rgba(30,107,255,0.15);color:var(--blue-400);box-shadow:inset 0 0 0 1px rgba(59,130,246,0.3);}.flip{height:18rem;perspective:1200px;cursor:pointer;outline:none;}.flip-inner{position:relative;height:100%;width:100%;transition:transform 0.6s;transform-style:preserve-3d;}.flip.flipped .flip-inner{transform:rotateY(180deg);}@media(min-width:1024px){.flip:hover .flip-inner,.flip:focus .flip-inner{transform:rotateY(180deg);}}.flip-face{position:absolute;inset:0;display:flex;flex-direction:column;border-radius:16px;padding:28px;backface-visibility:hidden;-webkit-backface-visibility:hidden;}.flip-front{background:var(--navy-700);}.flip-back{background:var(--blue-600);transform:rotateY(180deg);}.flip-top{display:flex;align-items:center;justify-content:space-between;}.flip-hint{display:flex;align-items:center;gap:6px;font-size:12px;font-weight:700;color:var(--slate-300);}.flip-no{margin-top:24px;font-family:var(--font-num);font-size:14px;font-weight:700;letter-spacing:0.15em;color:var(--amber-400);}.flip-title{margin-top:8px;font-size:1.25rem;font-weight:700;color:#fff;}.flip-body{margin-top:12px;font-size:16px;line-height:1.75;color:var(--slate-300);}.flip-back-label{margin-top:24px;font-size:14px;font-weight:700;letter-spacing:0.15em;color:rgba(255,255,255,0.8);}.flip-back-body{margin-top:12px;font-size:16px;font-weight:700;line-height:1.75;color:#fff;}.mistake-banner{margin-top:56px;border-radius:24px;padding:40px 32px;text-align:center;background:linear-gradient(135deg,#1E6BFF 0%,#2563EB 50%,#0B1B3F 100%);background-size:200% 200%;animation:gradient-flow 8s ease infinite;}@keyframes gradient-flow{0%,100%{background-position:0% 50%;}50%{background-position:100% 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rgba(0,0,0,0.25);animation:float-y 6s ease-in-out infinite;}.bubble-1{left:-12px;top:40px;background:#fff;color:var(--navy-900);animation-delay:-2s;}.bubble-2{right:-8px;top:33%;background:var(--blue-600);color:#fff;animation-delay:-5s;}.bubble-3{left:-8px;bottom:64px;background:var(--green-500);color:#fff;}.footer{border-top:1px solid rgba(255,255,255,0.05);background:var(--navy-950);color:#fff;}.footer .container{padding-top:64px;padding-bottom:64px;}.footer-grid{display:grid;gap:48px;}@media(min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr;align-items:start;}}.footer-logo{height:24px;width:auto;}.footer-slogan{margin-top:16px;font-size:18px;font-weight:700;}.footer-platforms-label{margin-top:24px;font-size:14px;font-weight:500;letter-spacing:0.15em;color:var(--slate-300);}.footer 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