:root{--color-bg: #f3f0e8;--color-bg-elevated: #ece7db;--color-bg-card: #ffffff;--color-bg-card-hover:#fbfdfa;--color-surface: #ece6d8;--color-primary: #2f9e6e;--color-primary-light:#43b885;--color-primary-glow: rgba(47, 158, 110, .22);--color-accent: #e0833a;--color-accent-light: #ef9b54;--color-accent-glow: rgba(224, 131, 58, .2);--color-gold: #c9962f;--color-gold-light: #e0b045;--color-gold-glow: rgba(201, 150, 47, .25);--color-teal: #2b8a9e;--color-green: #2f9e6e;--color-amber: #e0833a;--color-text: #1d2b24;--color-text-muted: #5e6f66;--color-text-subtle: #93a097;--color-border: #d7cfbf;--color-border-bright:#bfb094;--font-sans: "Inter", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace;--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 40px;--space-2xl: 64px;--space-3xl: 96px;--radius-sm: 8px;--radius-md: 14px;--radius-lg: 20px;--radius-xl: 28px;--radius-full:9999px;--shadow-card: 0 2px 6px rgba(40, 80, 55, .1), 0 6px 24px rgba(40, 80, 55, .14);--shadow-glow-green: 0 0 40px rgba(47, 158, 110, .16);--shadow-glow-amber: 0 0 40px rgba(224, 131, 58, .14);--transition: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .45s cubic-bezier(.4, 0, .2, 1)}*,*: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:var(--font-sans);background-color:var(--color-bg);color:var(--color-text);line-height:1.6;min-height:100vh;overflow-x:hidden}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}ul{list-style:none}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--color-bg)}::-webkit-scrollbar-thumb{background:var(--color-primary);border-radius:var(--radius-full)}::selection{background:var(--color-primary-light);color:#fff}.container{max-width:1140px;margin:0 auto;padding:0 var(--space-lg)}.section{padding:var(--space-3xl) 0}.section--tight{padding:var(--space-2xl) 0}.section-label{display:inline-flex;align-items:center;gap:var(--space-sm);font-size:.75rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--color-primary);background:#2f9e6e14;border:1px solid rgba(47,158,110,.2);border-radius:var(--radius-full);padding:6px 14px;margin-bottom:var(--space-lg)}.section-title{font-size:clamp(1.75rem,4vw,2.75rem);font-weight:800;line-height:1.15;letter-spacing:-.02em;margin-bottom:var(--space-md)}.section-desc{font-size:1.05rem;color:var(--color-text-muted);max-width:540px;line-height:1.75}.text-center{text-align:center}.text-center .section-desc{margin:0 auto}.gradient-text{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-teal) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.gradient-text--amber{background:linear-gradient(135deg,var(--color-accent) 0%,var(--color-gold) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.bg-blob{position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none;z-index:0}.nav{position:fixed;top:0;left:0;right:0;z-index:100;padding:var(--space-md) 0;transition:background var(--transition),border-color var(--transition),backdrop-filter var(--transition)}.nav.scrolled{background:#f3f0e8eb;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--color-border)}.nav__inner{display:flex;align-items:center;justify-content:space-between}.nav__logo{display:flex;align-items:center;gap:10px;font-size:1.1rem;font-weight:800;letter-spacing:-.01em}.nav__logo-icon{width:36px;height:36px;background:linear-gradient(135deg,var(--color-primary),var(--color-teal));border-radius:var(--radius-sm);display:grid;place-items:center;font-size:1.1rem;box-shadow:0 4px 16px var(--color-primary-glow)}.nav__links{display:flex;align-items:center;gap:var(--space-xl)}.nav__links a{font-size:.9rem;font-weight:500;color:var(--color-text-muted);transition:color var(--transition)}.nav__links a:hover{color:var(--color-text)}.nav__cta{display:flex;align-items:center;gap:var(--space-sm)}@media (max-width: 768px){.nav__links{display:none}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);font-family:var(--font-sans);font-size:.95rem;font-weight:600;border:none;cursor:pointer;border-radius:var(--radius-full);transition:all var(--transition);text-decoration:none;white-space:nowrap;line-height:1}.btn--primary{background:linear-gradient(135deg,var(--color-primary),var(--color-teal));color:#fff;padding:14px 28px;box-shadow:0 4px 20px var(--color-primary-glow)}.btn--primary:hover{transform:translateY(-2px);box-shadow:0 8px 28px var(--color-primary-glow),0 4px 12px 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0%,transparent 70%);top:40%;left:30%}.hero__inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:var(--space-2xl);padding:var(--space-2xl) 0}@media (max-width: 900px){.hero__inner{grid-template-columns:1fr;text-align:center}.hero__downloads,.hero__trust{justify-content:center}.hero__visual{order:-1}}.hero__badge{display:inline-flex;align-items:center;gap:var(--space-sm);font-size:.8rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--color-primary);background:#2f9e6e14;border:1px solid rgba(47,158,110,.2);border-radius:var(--radius-full);padding:6px 14px;margin-bottom:var(--space-lg)}.hero__badge-dot{width:6px;height:6px;background:var(--color-primary);border-radius:50%;animation:pulse-dot 1.8s infinite}.hero__title{font-size:clamp(2.5rem,6vw,4rem);font-weight:900;line-height:1.08;letter-spacing:-.03em;margin-bottom:var(--space-lg)}.hero__tagline{font-size:1.15rem;color:var(--color-text-muted);line-height:1.75;margin-bottom:var(--space-xl);max-width:500px}.hero__downloads{display:flex;flex-wrap:wrap;gap:var(--space-md);margin-bottom:var(--space-xl)}.hero__trust{display:flex;align-items:center;gap:var(--space-lg);flex-wrap:wrap}.hero__trust-item{display:flex;align-items:center;gap:var(--space-sm);font-size:.85rem;color:var(--color-text-muted)}.hero__trust-icon{color:var(--color-primary);font-size:1rem}.hero__visual{display:flex;justify-content:center;align-items:center;position:relative}.relay-arena{position:relative;width:380px;height:380px}@media (max-width: 480px){.relay-arena{width:280px;height:280px}}.relay-arena__ring{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:50%;border:1px solid rgba(47,158,110,.18);animation:ring-pulse 3s infinite 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var(--color-border);border-radius:var(--radius-lg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;box-shadow:var(--shadow-card);transition:transform var(--transition)}.role-node__emoji{font-size:1.5rem;line-height:1}.role-node__label{font-size:.66rem;font-weight:700;color:var(--color-text-muted)}.role-node.active{border-color:var(--color-primary);box-shadow:var(--shadow-card),0 0 24px var(--color-primary-glow);transform:scale(1.06)}.role-node--parent{top:-8%;left:50%;transform:translate(-50%);animation:float-node-1 4.5s ease-in-out infinite}.role-node--parent.active{transform:translate(-50%) scale(1.06)}.role-node--elder{bottom:6%;left:-4%;animation:float-node-2 5s ease-in-out infinite}.role-node--helper{bottom:6%;right:-4%;animation:float-node-3 4.2s ease-in-out infinite}.relay-arena__status-badge{position:absolute;bottom:-12px;left:50%;transform:translate(-50%);background:linear-gradient(135deg,var(--color-bg-card),var(--color-surface));border:1px solid var(--color-border-bright);border-radius:var(--radius-full);padding:8px 18px;display:flex;align-items:center;gap:var(--space-sm);font-size:.85rem;white-space:nowrap;box-shadow:var(--shadow-card)}.status-badge__dot{width:8px;height:8px;border-radius:50%;background:var(--color-primary);animation:pulse-dot 1.6s infinite}.status-badge__text{font-weight:700;color:var(--color-primary);transition:opacity .2s ease,transform .2s ease}.relay-arena__notif{position:absolute;background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:10px 14px;font-size:.78rem;white-space:nowrap;box-shadow:var(--shadow-card);display:flex;align-items:center;gap:8px}.relay-arena__notif--task{top:46%;right:-118px;animation:notif-float 3s ease-in-out 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768px){.stats-bar__inner{grid-template-columns:repeat(2,1fr)}}.stat-item{text-align:center}.stat-item__value{font-size:clamp(1.8rem,3vw,2.5rem);font-weight:900;letter-spacing:-.02em;line-height:1;margin-bottom:6px}.stat-item__label{font-size:.82rem;color:var(--color-text-muted);font-weight:500}.features__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-lg);margin-top:var(--space-2xl)}@media (max-width: 900px){.features__grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 580px){.features__grid{grid-template-columns:1fr}}.feature-card{background:var(--color-bg-card);border:1.5px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--space-xl);transition:all var(--transition);position:relative;overflow:hidden;box-shadow:0 2px 8px #28503714,0 4px 16px #2850371a}.feature-card:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,transparent 60%,rgba(47,158,110,.04) 100%);pointer-events:none}.feature-card:hover{background:var(--color-bg-card-hover);border-color:var(--color-border-bright);transform:translateY(-4px);box-shadow:var(--shadow-card),var(--shadow-glow-green)}.feature-card--role{border-color:#2f9e6e33}.feature-card--role.featured{border-color:#2b8a9e47}.feature-card--role.featured:before{background:linear-gradient(135deg,transparent 60%,rgba(43,138,158,.05) 100%)}.feature-card__icon{width:56px;height:56px;border-radius:var(--radius-md);display:grid;place-items:center;font-size:1.6rem;margin-bottom:var(--space-lg);position:relative}.feature-card__icon--green{background:#2f9e6e1a;border:1px solid rgba(47,158,110,.18);box-shadow:0 4px 16px #2f9e6e14}.feature-card__icon--teal{background:#2b8a9e1a;border:1px solid rgba(43,138,158,.18);box-shadow:0 4px 16px #2b8a9e14}.feature-card__icon--amber{background:#e0833a1a;border:1px solid rgba(224,131,58,.18);box-shadow:0 4px 16px #e0833a14}.feature-card__icon--gold{background:#c9962f1a;border:1px solid rgba(201,150,47,.18);box-shadow:0 4px 16px #c9962f14}.feature-card__tag{display:inline-block;font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--color-teal);background:#2b8a9e14;border-radius:var(--radius-full);padding:3px 10px;margin-bottom:var(--space-sm)}.feature-card__title{font-size:1.15rem;font-weight:700;margin-bottom:var(--space-sm);letter-spacing:-.01em}.feature-card__desc{font-size:.9rem;color:var(--color-text-muted);line-height:1.7}.feature-card__pills{display:flex;flex-wrap:wrap;gap:6px;margin-top:var(--space-md)}.pill{font-size:.75rem;font-weight:600;color:var(--color-text-muted);background:#46785a0f;border:1px solid rgba(70,120,90,.18);border-radius:var(--radius-full);padding:4px 10px}.how-it-works{background:var(--color-bg-elevated);border-top:1.5px solid var(--color-border);border-bottom:1.5px solid var(--color-border)}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-lg);margin-top:var(--space-2xl);position:relative}@media (max-width: 900px){.steps{grid-template-columns:repeat(2,1fr)}.steps__connector{display:none}}@media (max-width: 500px){.steps{grid-template-columns:1fr}}.steps__connector{position:absolute;top:40px;left:calc(25% + 20px);right:calc(25% + 20px);height:1px;background:linear-gradient(90deg,transparent 0%,var(--color-border-bright) 20%,var(--color-border-bright) 80%,transparent 100%);z-index:0}.step-item{text-align:center;position:relative;z-index:1}.step-item__number{width:80px;height:80px;border-radius:50%;background:linear-gradient(135deg,var(--color-primary),var(--color-teal));display:flex;align-items:center;justify-content:center;margin:0 auto var(--space-lg);position:relative;box-shadow:0 4px 24px var(--color-primary-glow)}.step-item__number-text{font-size:1.5rem;font-weight:900;color:#fff}.step-item__emoji{position:absolute;bottom:-8px;right:-8px;width:32px;height:32px;background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:50%;display:grid;place-items:center;font-size:.9rem}.step-item__title{font-size:1rem;font-weight:700;margin-bottom:var(--space-sm)}.step-item__desc{font-size:.85rem;color:var(--color-text-muted);line-height:1.65}.alert__layout{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-2xl);align-items:center;margin-top:var(--space-2xl)}@media (max-width: 900px){.alert__layout{grid-template-columns:1fr}}.ladder{background:var(--color-bg-card);border:1.5px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--space-xl);box-shadow:0 2px 8px #28503714,0 4px 16px #2850371a}.ladder__step{display:flex;align-items:flex-start;gap:var(--space-md);padding:var(--space-md) 0;position:relative}.ladder__step:not(:last-child):after{content:"";position:absolute;left:21px;top:46px;bottom:-6px;width:2px;background:var(--color-border)}.ladder__step.lit:not(:last-child):after{background:var(--color-accent)}.ladder__time{flex-shrink:0;width:44px;height:44px;border-radius:50%;display:grid;place-items:center;font-size:.72rem;font-weight:800;font-family:var(--font-mono);background:#2f9e6e1a;color:var(--color-primary);border:1.5px solid rgba(47,158,110,.25);transition:all var(--transition);z-index:1}.ladder__step.lit .ladder__time{background:linear-gradient(135deg,var(--color-accent),var(--color-gold));color:#fff;border-color:transparent;box-shadow:0 4px 16px var(--color-accent-glow)}.ladder__step--calm.lit .ladder__time{background:linear-gradient(135deg,var(--color-primary),var(--color-teal));box-shadow:0 4px 16px var(--color-primary-glow)}.ladder__body{padding-top:2px}.ladder__title{font-size:.98rem;font-weight:700;margin-bottom:2px}.ladder__desc{font-size:.84rem;color:var(--color-text-muted);line-height:1.6}.ladder__who{display:inline-block;font-size:.72rem;font-weight:700;color:var(--color-text-muted);background:#46785a0f;border:1px solid rgba(70,120,90,.16);border-radius:var(--radius-full);padding:2px 9px;margin-top:6px}.alert__note{margin-top:var(--space-xl);padding:var(--space-lg);background:#2f9e6e0f;border:1px solid rgba(47,158,110,.18);border-radius:var(--radius-lg);font-size:.88rem;color:var(--color-text-muted);line-height:1.7}.alert__note strong{color:var(--color-primary)}.elder-demo{background:var(--color-bg-card);border:1.5px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--space-xl);box-shadow:var(--shadow-card);max-width:320px;margin:0 auto}.elder-demo__title{font-size:1.05rem;font-weight:700;margin-bottom:4px;text-align:center}.elder-demo__sub{font-size:.84rem;color:var(--color-text-muted);text-align:center;margin-bottom:var(--space-lg)}.elder-demo__btn{display:block;width:100%;background:linear-gradient(135deg,var(--color-primary),var(--color-primary-light));color:#fff;font-size:1.5rem;font-weight:800;border:none;border-radius:var(--radius-lg);padding:28px 16px;cursor:pointer;box-shadow:0 6px 24px var(--color-primary-glow);transition:all var(--transition)}.elder-demo__btn:hover{transform:translateY(-2px);filter:brightness(1.05)}.elder-demo__hint{text-align:center;font-size:.78rem;color:var(--color-text-subtle);margin-top:var(--space-md)}.privacy__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-lg);margin-top:var(--space-2xl)}@media (max-width: 800px){.privacy__grid{grid-template-columns:1fr}}.privacy-card{background:var(--color-bg-card);border:1.5px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--space-xl);box-shadow:0 2px 8px #28503714,0 4px 16px #2850371a;transition:all var(--transition)}.privacy-card:hover{border-color:var(--color-border-bright);transform:translateY(-3px);box-shadow:var(--shadow-card)}.privacy-card__icon{font-size:1.8rem;margin-bottom:var(--space-md)}.privacy-card__title{font-size:1.05rem;font-weight:700;margin-bottom:var(--space-sm)}.privacy-card__desc{font-size:.88rem;color:var(--color-text-muted);line-height:1.7}.plans{background:var(--color-bg-elevated);border-top:1.5px solid var(--color-border);border-bottom:1.5px solid var(--color-border)}.plans__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-lg);margin-top:var(--space-2xl);max-width:920px;margin-left:auto;margin-right:auto}@media (max-width: 860px){.plans__grid{grid-template-columns:1fr;max-width:420px}}.plan-card{background:var(--color-bg-card);border:1.5px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--space-xl);position:relative;overflow:hidden;transition:all var(--transition);display:flex;flex-direction:column;box-shadow:0 2px 8px #28503714,0 4px 16px #2850371a}.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card)}.plan-card--pro{border-color:var(--color-border-bright);background:linear-gradient(160deg,#effaf4 0%,var(--color-bg-card) 60%)}.plan-card--pro:hover{box-shadow:var(--shadow-card),var(--shadow-glow-green)}.plan-card__popular-badge{position:absolute;top:0;left:50%;transform:translate(-50%);background:linear-gradient(135deg,var(--color-primary),var(--color-teal));color:#fff;font-size:.68rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;padding:5px 14px;border-radius:0 0 var(--radius-md) var(--radius-md)}.plan-card__tier-icon{font-size:2rem;margin-bottom:var(--space-md);line-height:1}.plan-card__tier-name{font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-muted);margin-bottom:var(--space-sm)}.plan-card__price-wrap{margin-bottom:var(--space-lg)}.plan-card__price{font-size:2.2rem;font-weight:900;letter-spacing:-.02em;line-height:1}.plan-card__period{font-size:.8rem;color:var(--color-text-muted);font-weight:500}.plan-card__save{display:inline-block;font-size:.72rem;font-weight:700;color:var(--color-primary);background:#2f9e6e14;border:1px solid rgba(47,158,110,.15);border-radius:var(--radius-full);padding:3px 8px;margin-top:6px}.plan-card__divider{height:1px;background:var(--color-border);margin:var(--space-lg) 0}.plan-card__features{display:flex;flex-direction:column;gap:10px;flex:1}.plan-feature{display:flex;align-items:flex-start;gap:10px;font-size:.85rem}.plan-feature__check{width:18px;height:18px;border-radius:50%;flex-shrink:0;display:grid;place-items:center;font-size:.65rem;margin-top:1px}.plan-feature__check--yes{background:#2f9e6e1a;color:var(--color-primary);border:1px solid rgba(47,158,110,.18)}.plan-feature__check--no{background:#1d2b240a;color:var(--color-text-subtle);border:1px solid rgba(29,43,36,.08)}.plan-feature__text{color:var(--color-text-muted);line-height:1.45}.plan-feature__text.active{color:var(--color-text)}.plan-card__cta{margin-top:var(--space-lg)}.testimonials__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-lg);margin-top:var(--space-2xl)}@media (max-width: 900px){.testimonials__grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 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a:hover{color:var(--color-text-muted)}.footer__platforms{display:flex;align-items:center;gap:var(--space-sm);font-size:.8rem;color:var(--color-text-subtle)}@keyframes pulse-dot{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.7)}}@keyframes ring-pulse{0%,to{transform:scale(1);opacity:.6}50%{transform:scale(1.04);opacity:.3}}@keyframes float-node-1{0%,to{transform:translate(-50%) translateY(0)}50%{transform:translate(-50%) translateY(-10px)}}@keyframes float-node-2{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}@keyframes float-node-3{0%,to{transform:translateY(0)}50%{transform:translateY(-12px)}}@keyframes notif-float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s 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h1{font-size:clamp(1.8rem,4vw,2.4rem);font-weight:800;margin-bottom:var(--space-sm);letter-spacing:-.02em}.legal__updated{font-size:.85rem;color:var(--color-text-subtle);margin-bottom:var(--space-2xl)}.legal h2{font-size:1.25rem;font-weight:700;margin:var(--space-2xl) 0 var(--space-md)}.legal p,.legal li{font-size:.95rem;color:var(--color-text-muted);line-height:1.8}.legal ul{padding-left:var(--space-lg);margin:var(--space-md) 0}.legal li{list-style:disc;margin-bottom:6px}.legal a{color:var(--color-primary);text-decoration:underline}.legal__back{display:inline-flex;align-items:center;gap:6px;margin-bottom:var(--space-xl);font-size:.9rem;color:var(--color-primary)}@media (max-width: 560px){.section{padding:var(--space-2xl) 0}.container{padding:0 var(--space-md)}}