:root{--bg: #0b1020;--bg-soft: #111832;--card: #151d3b;--text: #e8ecf6;--muted: #9aa4c4;--line: rgba(255, 255, 255, .08);--brand: #2563eb;--brand-2: #1e40af;--accent: #38bdf8;--radius: 16px;--container: 1120px;--shadow: 0 20px 50px -20px rgba(0, 0, 0, .6)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:radial-gradient(1200px 600px at 70% -10%,#13204a 0%,transparent 60%),radial-gradient(900px 500px at 0% 0%,#101a3a 0%,transparent 55%),var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:999px;padding:10px 18px;font-size:15px;font-weight:600;cursor:pointer;transition:transform .15s ease,box-shadow .2s ease,opacity .2s ease;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;white-space:nowrap}.btn:hover{transform:translateY(-2px);box-shadow:0 12px 30px -10px var(--brand)}.btn--sm{padding:8px 14px;font-size:14px}.btn--lg{padding:14px 26px;font-size:16px}.btn--block{width:100%}.btn--ghost{background:transparent;border-color:var(--line);color:var(--text)}.btn--ghost:hover{box-shadow:none;border-color:var(--brand)}.nav{position:sticky;top:0;z-index:50;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#0b1020b3;border-bottom:1px solid var(--line)}.nav__inner{display:flex;align-items:center;justify-content:space-between;height:64px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:18px}.brand__dot{width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--brand));box-shadow:0 0 14px var(--accent)}.nav__links{display:flex;align-items:center;gap:22px}.nav__links a{color:var(--muted);font-size:15px}.nav__links a:hover{color:var(--text)}.nav__links .btn{color:#fff}.hero{padding:90px 0 80px}.hero__inner{text-align:center;max-width:820px;margin:0 auto}.badge{display:inline-block;padding:6px 14px;border:1px solid var(--line);border-radius:999px;background:var(--bg-soft);color:var(--muted);font-size:14px;margin-bottom:22px}.hero__title{font-size:clamp(32px,6vw,58px);line-height:1.12;margin:0 0 20px;letter-spacing:-.02em}.grad{background:linear-gradient(135deg,var(--brand),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}.hero__sub{font-size:clamp(16px,2.4vw,20px);color:var(--muted);max-width:620px;margin:0 auto 32px}.hero__cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}.hero__note{color:var(--muted);font-size:14px;margin-top:18px}.section__title{font-size:clamp(26px,4vw,38px);text-align:center;margin:0 0 12px;letter-spacing:-.01em}.section__lead{text-align:center;color:var(--muted);max-width:560px;margin:0 auto 48px;font-size:17px}.features{padding:70px 0}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.card{background:linear-gradient(180deg,var(--card),var(--bg-soft));border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;transition:transform .2s ease,border-color .2s ease}.card:hover{transform:translateY(-6px);border-color:#2563eb99}.card__icon{width:52px;height:52px;display:grid;place-items:center;font-size:26px;border-radius:14px;background:#2563eb24;margin-bottom:18px}.card h3{margin:0 0 10px;font-size:20px}.card p{margin:0;color:var(--muted)}.examples{padding:70px 0}.ba{display:flex;flex-direction:column;gap:18px;max-width:960px;margin:0 auto}.ba__row{display:grid;grid-template-columns:1fr auto 1fr;gap:16px;align-items:stretch}.ba__col{border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;background:linear-gradient(180deg,var(--card),var(--bg-soft))}.ba__col p{margin:0}.ba__col--before p{color:var(--muted)}.ba__col--after{border-color:#2563eb80;box-shadow:0 0 0 1px #2563eb26}.ba__col--after b{color:var(--accent);font-weight:700}.ba__tag{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;padding:3px 10px;border-radius:999px;margin-bottom:12px}.ba__tag--before{background:#ff787824;color:#ff9d9d}.ba__tag--after{background:#2563eb33;color:#8fb0ff}.ba__arrow{align-self:center;font-size:22px;color:var(--brand)}.examples__cta{text-align:center;margin-top:40px}@media (max-width: 720px){.ba__row{grid-template-columns:1fr;gap:10px}.ba__arrow{transform:rotate(90deg);justify-self:center}}.contact{padding:70px 0 90px}.contact__inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;background:linear-gradient(180deg,var(--card),var(--bg-soft));border:1px solid var(--line);border-radius:24px;padding:48px;box-shadow:var(--shadow)}.contact__inner .section__title,.contact__inner .section__lead{text-align:left;margin-left:0}.contact__list{list-style:none;padding:0;margin:22px 0 0;color:var(--muted)}.contact__list li{margin-bottom:10px}.form{display:flex;flex-direction:column;gap:16px}.field{display:flex;flex-direction:column;gap:7px}.field label{font-size:14px;color:var(--muted)}.field input,.field textarea{background:#ffffff0a;border:1px solid var(--line);border-radius:12px;padding:12px 14px;color:var(--text);font-size:15px;font-family:inherit;resize:vertical;transition:border-color .15s ease,box-shadow .15s ease}.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px #2563eb38}.field input::placeholder,.field textarea::placeholder{color:#5f6b8f}.form__hint{font-size:13px;color:var(--muted);margin:4px 0 0}.form__hint--ok{color:var(--accent)}.form__hint--err{color:#ff8a8a}.footer{border-top:1px solid var(--line);background:#0003}.footer__inner{display:flex;justify-content:space-between;gap:40px;padding:48px 20px 32px;flex-wrap:wrap}.footer__brand{max-width:300px;font-weight:700}.footer__brand p{font-weight:400;color:var(--muted);margin:12px 0 0;font-size:14px}.footer__cols{display:flex;gap:56px;flex-wrap:wrap}.footer__cols h4{margin:0 0 12px;font-size:15px}.footer__cols a{display:block;color:var(--muted);font-size:14px;margin-bottom:8px}.footer__cols a:hover{color:var(--text)}.footer__bar{border-top:1px solid var(--line);padding:18px 0;color:var(--muted);font-size:13px;text-align:center}.about{padding:70px 0}.about__inner{display:grid;grid-template-columns:auto 1fr;gap:32px;align-items:center;max-width:900px;margin:0 auto;background:linear-gradient(180deg,var(--card),var(--bg-soft));border:1px solid var(--line);border-radius:24px;padding:40px}.about__inner .section__title{text-align:left;margin:0 0 14px}.about__inner p{color:var(--muted);margin:0;font-size:17px}.about__inner strong{color:var(--text)}.about__avatar{width:96px;height:96px;border-radius:24px;display:grid;place-items:center;font-size:40px;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--brand),var(--accent));box-shadow:0 14px 34px -12px var(--brand)}.about__stats{list-style:none;padding:0;margin:24px 0 0;display:flex;flex-wrap:wrap;gap:14px}.about__stats li{border:1px solid var(--line);border-radius:12px;padding:12px 16px;font-size:13px;color:var(--muted)}.about__stats li span{display:block;color:var(--text);font-weight:700;font-size:18px;margin-bottom:2px}.about__link{display:inline-block;margin-top:22px;font-weight:600;color:var(--brand)}.about__link:hover{color:var(--accent)}.faq{padding:40px 0 80px}.faq__list{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:12px}.faq__item{border:1px solid var(--line);border-radius:12px;background:var(--bg-soft);padding:4px 20px}.faq__item summary{cursor:pointer;font-weight:600;padding:16px 0;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}.faq__item summary::-webkit-details-marker{display:none}.faq__item summary:after{content:"+";color:var(--brand);font-size:22px;line-height:1}.faq__item[open] summary:after{content:"−"}.faq__item p{margin:0 0 18px;color:var(--muted)}@media (max-width: 640px){.about__inner{grid-template-columns:1fr;padding:28px;text-align:center}.about__inner .section__title{text-align:center}.about__avatar{margin:0 auto}.about__stats{justify-content:center}}@media (max-width: 860px){.cards{grid-template-columns:1fr}.contact__inner{grid-template-columns:1fr;padding:32px;gap:28px}}@media (max-width: 560px){.nav__links{gap:14px}.nav__links a:not(.btn){display:none}.hero{padding:60px 0 50px}.hero__cta{flex-direction:column}.hero__cta .btn{width:100%}}