:root{--ink:#171c18;--muted:#727872;--green:#b6f35e;--line:#e3e7e0;--paper:#f5f7f2;--font:Arial,"Microsoft YaHei","PingFang SC",sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px}body{margin:0;color:var(--ink);background:#fff;font-family:var(--font);font-size:15px;line-height:1.65;letter-spacing:0}body.dialog-open{overflow:hidden}button,a{-webkit-tap-highlight-color:transparent}button,input{font:inherit}button,a,summary{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none}button{color:inherit}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #568f25;outline-offset:5px}button:disabled{cursor:default}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.3}svg{width:20px;height:20px;flex:none;stroke-width:1.7}.container{width:calc(100% - 112px);max-width:1200px;margin-inline:auto}.skip-link{position:fixed;top:-100px;left:16px;padding:10px;background:var(--green);z-index:100}.skip-link:focus{top:8px}.header{height:88px;background:#fff;position:sticky;top:0;z-index:20;border-bottom:1px solid #edf0e8}.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:inline-flex;align-items:center;gap:11px;font-size:21px;font-weight:800;white-space:nowrap;line-height:1.15}.brand small{display:block;font-family:Arial,sans-serif;font-size:9px;font-weight:700;margin-top:7px}.brand-icon{background:var(--green);width:42px;height:42px;display:grid;place-items:center;border-radius:8px}.brand-icon svg{width:28px;height:28px;fill:var(--ink);stroke-width:1.3}.desktop-nav{display:flex;gap:30px;font-size:14px;color:#5b615b}.desktop-nav a:hover{color:#121612}.button{border:1px solid transparent;display:inline-flex;justify-content:center;align-items:center;gap:10px;min-height:50px;padding:0 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54%;z-index:-1}.hero-inner{min-height:560px;display:flex;align-items:center;position:relative}.hero-copy{padding:57px 0 65px;max-width:650px}.eyebrow{display:flex;align-items:center;gap:9px;color:#dce1d8;font-size:12px;margin-bottom:21px}.status-dot{width:6px;height:6px;border-radius:50%;background:var(--green)}h1{font-size:58px;font-weight:750;line-height:1.35;letter-spacing:0}h1 span{color:var(--green)}.hero-description{color:#b5bcb3;margin-top:19px;font-size:15px;line-height:1.9}.hero-actions{display:flex;align-items:center;gap:28px;margin-top:28px}.hero-more{display:flex;align-items:center;gap:11px;font-size:13px}.hero-more svg{width:16px;height:16px}.hero-promises{display:flex;gap:23px;margin-top:28px;color:#bcc3b7;font-size:12px}.hero-promises span{display:flex;gap:7px;align-items:center}.hero-promises 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var(--line);border-radius:8px;padding:32px 35px 27px;overflow:hidden;position:relative}.ai-card{background:#f4f3fa}.card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:30px}.service-icon{display:grid;place-items:center;width:50px;height:50px;border:1px solid #ccd8be;border-radius:8px;background:#e8f2d9}.service-icon svg{width:28px;height:28px}.ai-card .service-icon{background:#e9e6f3;border-color:#d9d3e7}.category{font-size:11px;border-bottom:1px solid #aebca1;padding-bottom:5px;color:#65735b}.ai-card .category{color:#756b86;border-color:#bbb1cc}.service-number{font-size:10px;color:#77826f;margin-bottom:9px;font-family:Arial,sans-serif}.service-card h3{font-size:28px}.service-description{font-size:14px;color:#6c7568;line-height:1.9;margin-top:15px}.ai-card .service-description{color:#74717c}.service-features{list-style:none;padding:0;margin:23px 0 30px;display:grid;gap:9px}.service-features li{display:flex;gap:10px;align-items:center;font-size:13px}.service-features svg{width:16px;height:16px;color:#67884c}.ai-card .service-features svg{color:#8d7aa3}.card-bottom{border-top:1px solid #dbe3d1;padding-top:22px;display:flex;align-items:center;justify-content:space-between;gap:15px}.ai-card .card-bottom{border-color:#dfdce8}.card-bottom small{font-size:10px;display:block;color:var(--muted);margin-bottom:3px}.card-bottom strong{font-size:20px;font-weight:650}.service-cta{border:0;border-bottom:1px solid #88977a;background:transparent;display:flex;align-items:center;gap:15px;padding:8px 0;font-size:13px;font-weight:600}.service-cta:hover{color:#52831d}.service-cta svg{width:18px;height:18px}.pricing-note{display:flex;align-items:flex-start;gap:7px;font-size:11px;color:#848980;margin-top:19px}.pricing-note svg{width:14px;height:14px;margin-top:2px}.process{background:var(--paper);border-block:1px solid 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.button{font-size:12px;padding-inline:12px;min-height:43px;gap:7px}.dialog-actions svg{width:16px;height:16px}.dialog-hint{font-size:11px;color:#959b90;margin-top:16px}.copy-feedback{min-height:21px;color:#4f7d26;font-size:11px;margin-top:3px}.copy-feedback.error{color:#9c521e}@media(min-width:1600px){.hero{max-height:660px}.hero-inner{min-height:600px}.hero-art{object-position:center 52%}}@media(max-width:1100px){.container{width:calc(100% - 64px)}.desktop-nav{gap:20px;font-size:12px}.brand{font-size:18px}.header-contact{font-size:12px;padding-inline:12px}h1{font-size:49px}.hero-inner{min-height:530px}.hero{min-height:530px}.hero-copy{max-width:550px}.hero-art{object-position:58% center}.hero-caption{font-size:8px}.assurance-layout,.faq-layout{gap:42px}.strip-inner{gap:20px}.strip-inner>span{font-size:13px}.service-card{padding:27px}.section{padding:66px 0}}@media(max-width:800px){.desktop-nav{display:none}.header-contact{margin-left:auto}.menu-toggle{display:grid}.mobile-nav:not([hidden]){display:flex;position:absolute;top:72px;left:0;right:0;background:#fff;padding:15px 24px 22px;box-shadow:0 12px 15px #0000000a;flex-wrap:wrap;gap:20px}.mobile-nav a{font-size:14px}.header{height:72px}.hero-art{opacity:.7;object-position:64% center}h1{font-size:46px}.hero-copy{max-width:520px}.hero-promises{gap:18px}.hero-caption{display:none}.strip-inner{min-height:80px;gap:18px;flex-wrap:wrap;justify-content:center;padding-block:18px}.strip-inner p{display:none}.strip-inner>span{font-size:12px}.strip-inner svg{width:18px;height:18px}.section-heading>p{font-size:12px}.service-card{padding:25px}.service-card h3{font-size:24px}.service-description{font-size:12px}.service-cta{gap:8px;font-size:12px}.steps{gap:24px}.steps p{font-size:12px}.assurance-layout,.faq-layout{grid-template-columns:1fr;gap:36px}.assurance-intro h2 br{display:none}.assurance-intro>p:not(.section-kicker) br{display:none}.assurance-list article{gap:20px}.assurance-list p{max-width:100%}.faq h2{font-size:28px}.footer-bottom{flex-direction:column;gap:8px}.contact-band h2{font-size:29px}.contact-band .button{padding-inline:17px;font-size:12px}}@media(max-width:560px){html{scroll-padding-top:85px}.container{width:calc(100% - 40px)}.header{height:68px}.header-inner{gap:8px}.brand{font-size:17px;gap:8px}.brand-icon{width:35px;height:35px}.brand-icon svg{width:24px;height:24px}.brand small{font-size:8px;margin-top:5px}.header-contact{font-size:11px;min-height:36px;padding:0 10px;gap:6px}.header-contact svg:first-child{width:14px;height:14px}.header-contact svg:last-child{display:none}.menu-toggle{width:34px;height:36px}.mobile-nav:not([hidden]){top:68px}.hero{min-height:615px}.hero-inner{min-height:615px;align-items:flex-start}.hero-copy{padding:38px 0 0;max-width:100%}.hero-art{top:auto;bottom:-3px;height:380px;object-fit:cover;object-position:84% 58%;opacity:.86;width:680px;max-width:none;left:calc(50% - 452px)}.eyebrow{font-size:10px;margin-bottom:17px}h1{font-size:40px;line-height:1.36}.hero-description{font-size:13px;margin-top:14px;line-height:1.85}.hero-actions{gap:24px;margin-top:23px}.hero-actions .button{min-height:47px;padding-inline:17px;font-size:12px}.hero-actions .button svg{width:17px;height:17px}.hero-more{font-size:11px;gap:7px}.hero-promises{position:absolute;bottom:23px;gap:20px;font-size:10px;color:#d3d9ce}.hero-promises svg{width:12px;height:12px}.strip-inner{min-height:77px;column-gap:21px;row-gap:12px}.strip-inner>span{gap:6px;font-size:11px}.strip-inner svg{width:16px;height:16px}.section{padding:48px 0}.section-heading{margin-bottom:25px;gap:20px;align-items:flex-start}.section-kicker{font-size:9px;margin-bottom:10px}h2,.section-heading h2{font-size:27px}.section-heading>p{font-size:10px;margin-top:29px;flex-shrink:0}.mobile-break{display:block}.service-grid{grid-template-columns:1fr;gap:18px}.service-card{padding:25px}.card-top{margin-bottom:24px}.service-card h3{font-size:27px}.service-description{font-size:13px}.service-features{margin-block:22px 26px}.service-features li{font-size:12px}.service-cta{font-size:12px;gap:12px}.pricing-note{font-size:10px;line-height:1.9;margin-top:15px}.process .section-heading{display:block}.text-button{margin-top:14px;font-size:12px}.steps{grid-template-columns:1fr 1fr;gap:34px 25px;margin-top:30px}.steps li{padding-top:22px}.step-number{top:20px;font-size:11px}.steps>li>svg{margin-bottom:15px}.steps h3{font-size:17px}.steps p{font-size:11px}.assurance-intro h2{font-size:28px}.assurance-intro>p:not(.section-kicker){font-size:12px;line-height:1.9;margin:13px 0 20px}.assurance-list article{gap:16px;padding-block:23px}.assurance-list article>svg{width:24px;height:24px}.assurance-list h3{font-size:16px}.assurance-list p{font-size:12px}.assurance-list article>span{font-size:10px}.faq h2{font-size:26px}.muted{font-size:12px;margin-top:10px}.faq-layout{gap:26px}summary{font-size:13px;padding:20px 0}.faq-list details>p{font-size:12px}.contact-band{padding:38px 0}.contact-inner{align-items:flex-start;flex-direction:column;gap:22px}.contact-band h2{font-size:28px}.contact-band .button{min-height:47px}.footer{padding:31px 0 94px}.footer-main{flex-wrap:wrap;gap:20px;padding-bottom:23px}.footer-main p{font-size:10px}.footer-main>a:last-child{font-size:11px}.footer-bottom{font-size:9px;gap:8px;line-height:1.85}.mobile-contact{display:flex;align-items:center;justify-content:space-between;gap:12px;position:fixed;bottom:0;left:0;right:0;min-height:66px;padding:10px 20px calc(10px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:#fffffff5;backdrop-filter:blur(10px);z-index:19}.mobile-contact>span{font-size:11px;color:#707967}.mobile-contact .button{min-height:40px;font-size:12px;padding-inline:15px}.mobile-contact svg{width:16px;height:16px}.dialog-content{padding:25px 20px 13px}.dialog-content h2{font-size:22px}.wechat-image{width:250px}.dialog-actions .button{padding-inline:10px;font-size:11px}.dialog-actions{gap:8px}}@media(max-width:360px){.container{width:calc(100% - 32px)}.brand{font-size:15px}.header-contact{font-size:10px}.header-contact svg{display:none}h1{font-size:35px}.hero-actions{gap:16px}.hero-actions .button{padding-inline:13px}.hero-promises{gap:14px}.strip-inner{column-gap:14px}.section-heading>p{max-width:100px}.mobile-contact{padding-inline:16px}.mobile-contact>span{font-size:10px}.dialog-actions{flex-direction:column}.wechat-image{width:220px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}
@media (min-width: 801px) {
  .hero-art { width: calc(100% - 240px); max-width: 1280px; left: auto; right: 0; object-position: center; }
}
.service-grid { grid-template-columns: minmax(0, 1fr); }
.ai-card { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 60px; }
.service-overview, .service-purchase { min-width: 0; }
.service-purchase { align-self: center; }
.service-purchase h4 { margin: 0; font-size: 16px; font-weight: 600; }
.service-overview .card-top { max-width: 360px; }
@media (max-width: 800px) {
  .ai-card { gap: 30px; }
}
@media (max-width: 560px) {
  .ai-card { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .service-purchase h4 { font-size: 14px; }
  .service-purchase .service-features { margin-top: 16px; }
}
@media (max-width: 560px) and (max-height: 750px) {
  .hero, .hero-inner { min-height: max(420px, calc(100svh - 126px)); }
  .hero-copy { padding-top: 28px; }
  .hero-art { height: 300px; opacity: .42; }
  .hero-promises { bottom: 18px; }
}