:root{--space-ink: #1a0b3c;--purple-500: #a855f7;--purple-600: #9333ea;--blue-500: #3b82f6;--font: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", system-ui, sans-serif}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth}body.landing{margin:0;min-height:100%;font-family:var(--font);color:#f8fafc;background:var(--space-ink);overflow-x:hidden}.page-bg{position:fixed;top:0;right:0;bottom:0;left:0;z-index:0;background-color:var(--space-ink);background-image:url(/hero-bg.png);background-position:center center;background-size:cover;background-repeat:no-repeat}.cosmos-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1;pointer-events:none;opacity:.42;background-image:radial-gradient(1.5px 1.5px at 12% 18%,rgba(255,255,255,.55) 50%,transparent 52%),radial-gradient(1px 1px at 22% 42%,rgba(255,255,255,.35) 50%,transparent 52%),radial-gradient(1px 1px at 8% 65%,rgba(255,255,255,.28) 50%,transparent 52%),radial-gradient(1.5px 1.5px at 35% 12%,rgba(199,210,254,.5) 50%,transparent 52%),radial-gradient(1px 1px at 18% 88%,rgba(255,255,255,.22) 50%,transparent 52%),radial-gradient(2px 2px at 6% 38%,rgba(255,255,255,.2) 50%,transparent 52%)}.cosmos-overlay:after{content:"";position:absolute;right:-18%;top:4%;width:min(90vw,720px);height:min(90vw,720px);border-radius:50%;border:1px solid rgba(167,139,250,.12);box-shadow:0 0 0 1px #60a5fa0f,inset 0 0 80px #6366f10a;transform:rotate(-12deg)}.page-veil{position:fixed;top:0;right:0;bottom:0;left:0;z-index:2;pointer-events:none;background:linear-gradient(105deg,rgba(26,11,60,.88) 0%,rgba(26,11,60,.52) 34%,rgba(26,11,60,.12) 52%,rgba(26,11,60,.02) 62%,transparent 78%)}.hero-screen{position:relative;z-index:5;min-height:100vh;min-height:100dvh;display:flex;flex-direction:column}.site-header{flex-shrink:0;display:flex;align-items:center;justify-content:space-between;gap:28px;max-width:1280px;width:100%;margin:0 auto;padding:28px 40px 0}.brand{display:flex;align-items:center;gap:16px;text-decoration:none;color:inherit}.brand__logo{border-radius:16px;box-shadow:0 12px 40px #00000073,0 0 0 1px #ffffff14}.brand__text{display:flex;flex-direction:column;gap:4px}.brand__name{font-size:1.35rem;font-weight:700;letter-spacing:.06em;color:#fff}.brand__tag{font-size:.8rem;font-weight:400;color:#f8fafcbf;letter-spacing:.02em}.nav{display:flex;align-items:center;justify-content:center;gap:10px 36px;flex-wrap:wrap}.nav__link{position:relative;padding:8px 0;font-size:1rem;font-weight:400;color:#f8fafce0;text-decoration:none;border:none;background:none;cursor:pointer;font-family:inherit;transition:color .2s ease}.nav__link:hover{color:#fff}.nav__link.is-active{color:#fff;font-weight:600}.nav__link.is-active:after{content:"";position:absolute;left:50%;bottom:0;transform:translate(-50%);width:28px;height:3px;border-radius:999px;background:linear-gradient(90deg,#c084fc,var(--purple-500),var(--blue-500))}.btn-nav-cta{flex-shrink:0;padding:11px 26px;border-radius:999px;font-size:.95rem;font-weight:600;color:#fff;text-decoration:none;font-family:inherit;background:linear-gradient(118deg,var(--purple-600) 0%,var(--purple-500) 40%,var(--blue-500) 100%);border:1px solid rgba(255,255,255,.22);box-shadow:0 12px 40px #9333ea59,inset 0 1px #ffffff40;transition:transform .15s ease,box-shadow .15s ease}.btn-nav-cta:hover{transform:translateY(-2px);box-shadow:0 16px 48px #3b82f659,inset 0 1px #ffffff4d}.hero{flex:1;position:relative;z-index:5;display:flex;align-items:center;padding:32px 40px 160px;min-height:0}.hero__inner{width:100%;max-width:1280px;margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.12fr);gap:clamp(24px,4vw,56px);align-items:center}.hero__copy{max-width:520px;padding-top:8px}.hero__title{margin:0 0 28px;font-weight:800;line-height:1.08;letter-spacing:.03em}.hero__title-line{display:block;font-size:clamp(2.5rem,4.8vw,3.75rem);color:#fff;text-shadow:0 0 40px rgba(168,85,247,.35),0 4px 24px rgba(0,0,0,.35)}.hero__title-line--sub{margin-top:10px;background:linear-gradient(90deg,#bae6fd,#e0f2fe,#fff 70%,#f5f3ff);-webkit-background-clip:text;background-clip:text;color:transparent}.hero__desc{margin:0 0 36px;font-size:clamp(1rem,1.35vw,1.125rem);line-height:2;font-weight:400;color:#f8fafceb;letter-spacing:.02em}.hero__actions{display:flex;flex-direction:column;align-items:flex-start;gap:16px}.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:12px;padding:17px 40px;border-radius:999px;font-size:1.08rem;font-weight:700;color:#fff;text-decoration:none;font-family:inherit;background:linear-gradient(118deg,var(--purple-600) 0%,var(--purple-500) 38%,var(--blue-500) 100%);border:1px solid rgba(255,255,255,.28);box-shadow:inset 0 1px #ffffff61,0 18px 56px #3b82f652,0 8px 28px #9333ea40;transition:transform .15s ease,box-shadow .15s ease}.btn-primary:hover{transform:translateY(-2px);box-shadow:inset 0 1px #ffffff73,0 22px 64px #a855f766}.btn-primary__ico{display:flex;opacity:.95}.hero__hint{margin:0;font-size:.875rem;color:#e2e8f0a6;letter-spacing:.02em}.hero__art{min-height:clamp(280px,48vh,520px)}.qr-dock{position:absolute;right:max(32px,env(safe-area-inset-right));bottom:max(32px,env(safe-area-inset-bottom));z-index:20}.qr-card{width:212px;padding:20px 20px 16px;border-radius:22px;background:#fff;border:1px solid rgba(255,255,255,.65);box-shadow:0 28px 72px #0f172a6b,0 0 0 1px #0f172a0a;text-align:center}.qr-card__img{display:block;width:168px;height:168px;margin:0 auto;border-radius:16px;object-fit:cover}.qr-card__cap{margin:14px 0 0;font-size:.8125rem;font-weight:500;color:#334155;line-height:1.45}.why-screen{position:relative;z-index:30;background:transparent;padding:48px 20px 64px;scroll-margin-top:24px}.why-panel{max-width:1120px;margin:0 auto;background:#fff;border-radius:32px;box-shadow:0 20px 64px #0f172a14,0 0 0 1px #0f172a0a;overflow:hidden}.why-panel__title{margin:0;padding:44px 32px 8px;font-size:clamp(1.5rem,3vw,1.85rem);font-weight:700;color:#0f172a;text-align:center;letter-spacing:.04em}.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px 28px;padding:36px 40px 44px}.why-item{text-align:center;padding:8px 12px;max-width:280px;margin-inline:auto}.why-item__ico{display:flex;align-items:center;justify-content:center;margin:0 auto 18px;width:clamp(100px,11vw,128px);height:clamp(100px,11vw,128px);border-radius:24px;background:transparent}.why-item__img{display:block;width:100%;height:100%;max-width:128px;max-height:128px;object-fit:contain}.why-item__title{margin:0 0 10px;font-size:1rem;font-weight:700;color:#1e293b;line-height:1.35}.why-item__desc{margin:0;font-size:.8125rem;line-height:1.62;color:#64748b;max-width:17em;margin-inline:auto}.why-cta{display:flex;flex-direction:row;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;padding:28px 36px 32px;background:linear-gradient(105deg,#ede9fe,#e0e7ff 40%,#dbeafe);border-top:1px solid rgba(148,163,184,.25)}.why-cta__deco{flex-shrink:0;opacity:.95}.why-cta__deco-img{display:block;width:clamp(72px,8vw,92px);height:clamp(72px,8vw,92px);object-fit:contain}.why-cta__text{flex:1;min-width:200px}.why-cta__title{margin:0 0 8px;font-size:clamp(1.15rem,2.2vw,1.35rem);font-weight:700;color:#5b21b6;letter-spacing:.02em}.why-cta__sub{margin:0;font-size:.875rem;color:#64748b;line-height:1.55}.why-cta__actions{flex-shrink:0;display:flex;flex-direction:column;align-items:center;gap:12px}.why-cta__qr{width:96px;height:96px;border-radius:14px;object-fit:cover;box-shadow:0 8px 24px #0f172a1f}.btn-why-mini{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 22px;border-radius:999px;font-size:.85rem;font-weight:600;color:#fff;text-decoration:none;font-family:inherit;background:linear-gradient(118deg,var(--purple-600),var(--purple-500) 45%,var(--blue-500));border:1px solid rgba(255,255,255,.25);box-shadow:0 8px 24px #6366f140}.btn-why-mini:hover{filter:brightness(1.05)}.btn-why-mini__ico{display:flex;flex-shrink:0}.site-footer{position:relative;z-index:35;margin-top:0;padding:22px 16px max(18px,env(safe-area-inset-bottom));overflow:hidden}.site-footer__decor{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;background:radial-gradient(ellipse 80% 60% at 50% 0%,rgba(99,102,241,.18) 0%,transparent 55%),radial-gradient(ellipse 60% 50% at 85% 40%,rgba(168,85,247,.12) 0%,transparent 50%),linear-gradient(180deg,#0a061c66,#03020cf2,#010108)}.site-footer__decor:before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent 0%,rgba(167,139,250,.3) 20%,rgba(248,250,252,.5) 50%,rgba(167,139,250,.3) 80%,transparent 100%)}.site-footer__inner{position:relative;max-width:960px;margin:0 auto;padding:0 4px}.site-footer__bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:6px 10px;font-size:.8125rem;line-height:1.45;color:#e2e8f0e0;text-align:center}.site-footer__brand{display:inline-flex;align-items:center;gap:10px}.site-footer__logo{flex-shrink:0;width:28px;height:28px;border-radius:8px;box-shadow:0 4px 16px #00000059,0 0 0 1px #ffffff1a}.site-footer__wordmark{font-size:.9375rem;font-weight:700;letter-spacing:.1em;color:#f8fafc}.site-footer__sep{color:#94a3b86b;-webkit-user-select:none;user-select:none;font-weight:300;line-height:1}.site-footer__domain{color:#bae6fdeb;text-decoration:none;font-family:ui-monospace,Cascadia Mono,Segoe UI Mono,monospace;font-size:.8125rem;letter-spacing:.02em;transition:color .15s ease}.site-footer__domain:hover{color:#f8fafc;text-decoration:underline;text-underline-offset:2px}.site-footer__copy{color:#94a3b8f2;letter-spacing:.04em}.site-footer__icp{display:inline-flex;align-items:baseline;flex-wrap:wrap;justify-content:center;gap:0}.site-footer__icp-prefix{color:#e2e8f0c7;margin-right:1px}.site-footer__icp-link{color:#e2e8f0f2;text-decoration:none;font-weight:600;letter-spacing:.03em;transition:color .15s ease;text-underline-offset:2px}.site-footer__icp-link:hover{color:#f8fafc;text-decoration:underline}@media (max-width: 520px){.site-footer{padding:18px 12px max(16px,env(safe-area-inset-bottom))}.site-footer__bar{font-size:.75rem;gap:5px 8px}.site-footer__wordmark{font-size:.875rem}.site-footer__domain{font-size:.75rem}}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.qr-modal{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:24px 16px;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .22s ease,visibility .22s ease}.qr-modal.is-open{opacity:1;visibility:visible;pointer-events:auto}.qr-modal__backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:#080616b8;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.qr-modal__panel{position:relative;z-index:1;max-width:min(92vw,580px);width:100%;filter:drop-shadow(0 28px 64px rgba(0,0,0,.55))}.qr-modal__shell{position:relative;width:100%;line-height:0}.qr-modal__art{display:block;width:100%;height:auto;border-radius:clamp(14px,3vw,22px);-webkit-user-select:none;user-select:none;pointer-events:none}.qr-modal__qr-slot{position:absolute;left:54.5%;top:29%;width:35%;height:54%;display:flex;align-items:center;justify-content:center;pointer-events:none}.qr-modal__qr{display:block;max-width:88%;max-height:88%;width:auto;height:auto;object-fit:contain;border-radius:12%;box-shadow:0 12px 36px #0f172a59}.qr-modal__close{position:absolute;z-index:2;right:2.8%;top:2.6%;width:clamp(40px,9.5vw,52px);height:clamp(40px,9.5vw,52px);padding:0;border:none;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;background:#0f172a59;color:#f8fafc;transition:background .15s ease,transform .15s ease}.qr-modal__close:hover{background:#0f172a8c;transform:scale(1.05)}.qr-modal__close-x{font-size:clamp(1.35rem,4.5vw,1.75rem);font-weight:300;line-height:1;margin-top:-2px}@media (max-width: 1024px){.site-header{flex-wrap:wrap;padding:22px 24px 0}.nav{order:3;width:100%;justify-content:flex-start;gap:10px 24px;padding-top:10px}.btn-nav-cta{margin-left:auto}.hero{padding:24px 24px 140px}.hero__inner{grid-template-columns:1fr}.hero__art{display:none}.qr-dock{position:absolute;right:20px;bottom:24px;left:auto}.why-grid{grid-template-columns:repeat(2,1fr);padding:28px 24px 32px}.why-cta{padding:24px 24px 28px;justify-content:center;text-align:center}.why-cta__text{flex:1 1 100%;order:-1}.why-cta__actions{flex-direction:row;flex-wrap:wrap;justify-content:center;width:100%}}@media (max-width: 560px){.why-grid{grid-template-columns:1fr}.brand__name{font-size:1.15rem}.btn-nav-cta{width:100%;margin-left:0;text-align:center}.qr-dock{position:relative;right:auto;bottom:auto;left:auto;display:flex;justify-content:center;padding:0 16px 24px;margin-top:-100px}.qr-card{margin:0 auto}}