:root{--c-bg-deep:#030b15;--c-bg-base:#060f1d;--c-bg-raised:#0b1a2e;--c-accent:#38b8f5;--c-accent-alt:#06d4be;--c-text:#d8eef9;--c-text-muted:#7eaec8;--c-text-dim:#4e7a93;--c-white:#fff;--glass-bg:rgba(5,15,30,.6);--glass-border:rgba(90,182,228,.2);--glass-blur:20px;--glass-shadow:0 2px 10px rgba(0,0,0,.24),0 8px 26px rgba(0,0,0,.3),0 18px 46px rgba(0,0,0,.34);--glass-shadow-hover:0 4px 18px rgba(0,0,0,.3),0 14px 36px rgba(0,0,0,.36),0 28px 60px rgba(0,0,0,.4);--shadow-soft:0 2px 10px rgba(8,80,130,.1),0 8px 24px rgba(8,80,130,.15),0 18px 44px rgba(8,80,130,.18);--shadow-strong:0 4px 16px rgba(6,100,165,.18),0 14px 34px rgba(6,100,165,.24),0 30px 64px rgba(6,100,165,.28);--radius-xl:24px;--radius-lg:16px;--radius-md:10px;--radius-sm:6px;--radius-pill:999px;--t-fast:0.18s ease;--t-base:0.28s ease;--t-slow:0.48s ease;--line:rgba(80,165,215,.18);--sky-500:#2ebdff;--sky-600:#0ea5e9;--ink-900:#060f1d;--ink-700:#0b1a2e;--ink-500:#3a5a72;--white:#fff}.card{--card-background-color:transparent!important;background:linear-gradient(145deg,rgba(8,28,52,.54),rgba(5,18,36,.62) 50%,rgba(3,12,26,.68))!important;backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border)!important;box-shadow:inset 0 1px 0 hsla(0,0%,100%,.09),var(--glass-shadow)!important;border-radius:var(--radius-xl);isolation:isolate;position:relative;overflow:hidden}.card:before{background:linear-gradient(180deg,hsla(0,0%,100%,.04) 0,transparent 35%),linear-gradient(145deg,rgba(56,184,245,.09),transparent 55%),radial-gradient(ellipse at 20% 30%,rgba(38,158,228,.07) 0,transparent 50%),radial-gradient(ellipse at 80% 70%,rgba(6,188,162,.05) 0,transparent 50%)!important}.card:after,.card:before{content:""!important;position:absolute!important;inset:0!important;pointer-events:none!important;z-index:0!important}.card:after{background:linear-gradient(180deg,hsla(0,0%,100%,.024),transparent 60%)!important;opacity:1!important}.card>*{position:relative;z-index:1}.btn{border:none;border-radius:var(--radius-pill);padding:.76rem 1.8rem;font-weight:700;font-size:1rem;letter-spacing:.01em;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;cursor:pointer;transition:transform var(--t-fast),box-shadow var(--t-fast)}.btn:hover{transform:translateY(-2px)}.btn:active{transform:translateY(0)}.btn-primary{--accent-9:transparent;--accent-9-contrast:#fff;background:linear-gradient(135deg,#3ab8f5,#1a9fde 50%,#06c4af)!important;color:#fff!important;box-shadow:var(--shadow-strong)}.btn-primary:hover{box-shadow:0 6px 20px rgba(20,140,210,.38),0 14px 36px rgba(20,140,210,.28),0 28px 60px rgba(20,140,210,.2)}.btn-ghost{--accent-a3:rgba(80,165,215,.12);color:#cce8f8!important;background:hsla(0,0%,100%,.06)!important;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border)!important}.btn-ghost:hover{background:hsla(0,0%,100%,.1)!important;border-color:rgba(80,165,215,.3)!important}.section-head{max-width:72ch;margin-bottom:1.4rem;-webkit-user-select:none;-moz-user-select:none;user-select:none}.section-head .rt-Heading,.section-head h2{margin:0;font-family:Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:clamp(1.6rem,3vw,3rem);font-weight:800;color:#fff;letter-spacing:-.01em;filter:drop-shadow(0 1px 4px rgba(0,0,0,.38)) drop-shadow(0 0 1px rgba(0,0,0,.44))}.section-intro{margin:.2rem 0 0;color:var(--c-text);font-size:clamp(1.32rem,1.65vw,1.575rem);letter-spacing:.03em;filter:drop-shadow(0 1px 3px rgba(0,0,0,.32)) drop-shadow(0 0 1px rgba(0,0,0,.38))}.section-separator{height:1px;width:100%;margin:1rem 0 1.25rem;background:linear-gradient(90deg,transparent,rgba(56,184,245,.28),transparent)!important}*{box-sizing:border-box}.rt-Heading,.rt-Link,.rt-Text{line-height:inherit;letter-spacing:inherit;white-space:normal;overflow:visible;text-overflow:clip}:where(main,footer) :where(.rt-Text,.rt-Heading,.rt-Link,h1,h2,h3,h4,h5,h6,p,span,a,li,strong,em){filter:drop-shadow(0 1px 3px rgba(0,0,0,.2)) drop-shadow(0 0 1px rgba(0,0,0,.26))}.card :where(.rt-Text,.rt-Heading,.rt-Link,h1,h2,h3,h4,h5,h6,p,span,a,li,strong,em),:where(button,[role=button],.rt-Button,.menuLink,.socialBtn,.scrollCue),:where(button,[role=button],.rt-Button,.menuLink,.socialBtn,.scrollCue) :where(.rt-Text,.rt-Heading,.rt-Link,h1,h2,h3,h4,h5,h6,p,span,a,li,strong,em){filter:none}html{scroll-behavior:smooth;scroll-padding-top:110px}body,html{overflow-x:hidden}body{margin:0;font-family:Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans CJK SC,sans-serif;color:var(--c-text);background:radial-gradient(ellipse at 10% -10%,rgba(18,88,148,.22) 0,transparent 44%),radial-gradient(ellipse at 94% 4%,rgba(6,108,140,.16) 0,transparent 40%),radial-gradient(ellipse at 50% 100%,rgba(4,48,88,.14) 0,transparent 50%),linear-gradient(180deg,#030b15,#060f1e 50%,#0a1828)}footer,header,main{position:relative;z-index:10}main{transition:opacity .5s ease-out}main.content-fade-out{opacity:0;pointer-events:none}.container{width:min(1200px,calc(100% - 2.4rem));margin:0 auto}.flow-section{min-height:58.5vh;display:flex;align-items:center}.section.flow-section{flex-direction:column;align-items:stretch;justify-content:center}.hero.flow-section{display:grid;align-items:center;min-height:100svh}.scroll-zoom-section{--zoom-scale:0.95;--zoom-opacity:0.52;--reveal-alpha:1;transform:scale(var(--zoom-scale));opacity:var(--zoom-opacity);transform-origin:center center;transition:transform .3s linear,opacity .3s linear;will-change:transform,opacity}.reveal{opacity:0;transition:opacity .38s ease;transition-delay:calc(var(--d, 0) * 70ms)}.reveal.visible{opacity:1}.scroll-zoom-section.reveal{--reveal-alpha:0;opacity:calc(var(--zoom-opacity) * var(--reveal-alpha));transform:scale(var(--zoom-scale));transition:opacity 1.1s ease,transform 1.1s cubic-bezier(.22,1,.36,1)}.scroll-zoom-section.reveal.visible{--reveal-alpha:1}.parallax{--parallax-y:0px;will-change:transform;transform:translate3d(0,var(--parallax-y),0)}.click-plane-emoji{--plane-rot-start:0deg;--plane-rot-end:0deg;position:fixed;left:0;top:0;transform:translate(-50%,-50%);pointer-events:none;-webkit-user-select:none;-moz-user-select:none;user-select:none;z-index:120;font-size:2rem;filter:drop-shadow(0 4px 12px rgba(0,20,42,.52));animation:planeFloatUp 1.45s cubic-bezier(.2,.75,.24,1) forwards}@keyframes planeFloatUp{0%{opacity:0;transform:translate(-50%,-50%) rotate(var(--plane-rot-start)) scale(.88)}3%{opacity:1;transform:translate(-50%,-62%) rotate(calc(var(--plane-rot-start) + (var(--plane-rot-end) - var(--plane-rot-start)) * .3)) scale(1)}to{opacity:0;transform:translate(-50%,-260%) rotate(var(--plane-rot-end)) scale(1.1)}}@media (max-width:980px){html{scroll-padding-top:90px}.flow-section{min-height:auto}.scroll-zoom-section{--zoom-scale:1;--zoom-opacity:1}.container{width:min(1200px,calc(100% - 2rem))}.card{border-radius:var(--radius-lg)}.btn{padding:.72rem 1.5rem;font-size:.96rem}}@media (max-width:760px){html{scroll-padding-top:140px}body{font-size:15px;-webkit-tap-highlight-color:rgba(0,0,0,.08)}.container{width:min(1200px,calc(100% - 1.6rem))}.flow-section{min-height:auto;padding:1rem 0}.section.flow-section{padding:1.5rem 0}.card{border-radius:14px}.btn{padding:.82rem 1.4rem;font-size:.95rem;min-height:48px;width:100%}.click-plane-emoji{font-size:1.8rem}}@media (max-width:480px){html{scroll-padding-top:130px}body{font-size:14px}.container{width:min(1200px,calc(100% - 1.2rem))}.card{border-radius:12px}.btn{padding:.76rem 1.2rem;font-size:.92rem;min-height:46px}.click-plane-emoji{font-size:1.6rem}}