:root{--paper:#fcfcfa;--ink:#22231f;--muted:#61635e;--line:#dedfd8;--pink:#d52a62;--lime:#d8ea72;--aqua:#d8eeee;--font:Arial,"PingFang SC","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:32px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}a,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,summary:focus-visible{outline:3px solid var(--pink);outline-offset:6px}a:hover{text-decoration:underline;text-underline-offset:5px}img{display:block;max-width:100%;height:auto}h1,h2,h3,p,figure{margin:0}h1,h2,h3{line-height:1.3}h2{font-size:clamp(28px,3.2vw,43px);letter-spacing:-1.5px}h3{font-size:22px;letter-spacing:-.5px}p{color:var(--muted)}.shell{width:min(1200px,calc(100% - 96px));margin-inline:auto}.section-space{padding-block:100px}.site-header{display:flex;justify-content:space-between;align-items:center;min-height:108px;border-bottom:1px solid var(--line);gap:24px}.brand{display:flex;align-items:center;gap:13px;font-size:30px;font-weight:800;letter-spacing:-1.4px;line-height:1.15}.brand-icon{width:46px;height:46px;border-radius:50%}.brand-sub{display:block;font-size:13px;letter-spacing:3px;font-weight:500;margin-top:5px}.site-header nav{display:flex;gap:36px;font-size:15px}.skip-link{position:absolute;left:16px;top:-100px;background:var(--ink);color:white;padding:10px 20px;z-index:2}.skip-link:focus{top:12px}.hero{display:grid;grid-template-columns:1.3fr 1fr;column-gap:6%;padding-top:76px}.hero-copy{align-self:center;padding-bottom:40px}.hero h1{font-size:clamp(35px,4.4vw,62px);font-weight:800;letter-spacing:-2.5px;line-height:1.32}.hero h1 span{display:block}.hero h1 span:last-child{color:var(--pink)}.hero-description{max-width:470px;margin-top:28px;font-size:17px;line-height:1.95}.hero-actions{display:flex;align-items:center;gap:25px;margin-top:35px;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;gap:34px;background:var(--ink);color:white;padding:15px 24px;border-radius:4px;font-size:15px}.button:hover{background:var(--pink);text-decoration:none}.text-link{display:inline-flex;gap:12px;align-items:center;font-size:14px}.brand-portrait{justify-self:center;align-self:center;width:min(100%,370px);background:white;border:1px solid #e2e3de;padding:22px 22px 26px;transform:rotate(4deg);box-shadow:12px 14px 0 var(--lime)}.portrait-image{background:#e4e5e3;display:flex;align-items:center;justify-content:center;aspect-ratio:1}.hero-logo{width:229px;height:229px;object-fit:contain}.brand-portrait figcaption{display:flex;flex-direction:column;gap:5px;padding-top:19px}.brand-portrait strong{font-size:17px;letter-spacing:1px}.brand-portrait figcaption span{font-size:13px;color:var(--muted)}.hero-bottom{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;margin-top:75px;padding-block:21px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}.hero-bottom span:last-child{font-size:12px;letter-spacing:1.5px}.wordmark-band{background:var(--lime);overflow:hidden;padding:0 24px}.wordmark-band>div{max-width:1250px;margin:auto;display:flex;align-items:center;justify-content:center;font-size:clamp(75px,17vw,245px);font-weight:900;line-height:1.2;letter-spacing:-.07em;white-space:nowrap}.wordmark-star{font-size:.56em;color:var(--pink);margin:0 .15em;line-height:1}.wordmark-dot{color:var(--pink)}.section-label{font-size:12px;font-weight:700;letter-spacing:2px;margin-bottom:16px;color:var(--ink)}.section-intro{display:flex;justify-content:space-between;align-items:flex-end;gap:50px}.section-intro>p{max-width:315px;font-size:16px}.features{display:grid;grid-template-columns:repeat(3,1fr);margin-top:52px;gap:42px}.feature{border-top:2px solid var(--ink);padding-top:22px}.feature-number{display:block;font-size:14px;color:var(--pink);font-weight:700;margin-bottom:28px}.feature p{margin-top:17px;line-height:1.9}.raw-note{display:grid;grid-template-columns:170px 1fr;gap:25px;background:#f0f1eb;padding:24px 28px;margin-top:42px;font-size:14px}.raw-note strong{font-size:15px}.guide{background:var(--ink);color:var(--paper)}.guide-layout{display:grid;grid-template-columns:1fr 1.15fr;gap:11%}.guide .section-label{color:var(--lime)}.guide-intro>p:not(.section-label){max-width:325px;margin-top:25px;color:#bfc2b6}.guide-arrow{display:block;color:var(--lime);font-size:110px;line-height:1.3;margin-top:34px;font-weight:400}.steps{list-style:none;margin:0;padding:0}.steps li{display:grid;grid-template-columns:42px 1fr;gap:16px;padding:25px 0;border-top:1px solid #55574d}.steps li:first-child{padding-top:0;border-top:0}.steps li:last-child{padding-bottom:0}.step-number{color:var(--lime);font-size:15px;padding-top:3px}.steps h3{font-size:21px}.steps p{color:#c0c2b9;margin-top:10px;font-size:15px;line-height:1.85}.faq{display:grid;grid-template-columns:.85fr 1.15fr;gap:10%}.faq h2{font-size:32px}.faq-list details{border-bottom:1px solid var(--line)}.faq-list details:first-child{border-top:1px solid var(--line)}summary{display:flex;align-items:center;justify-content:space-between;gap:25px;padding-block:22px;cursor:pointer;font-size:17px;font-weight:600;list-style:none}summary::-webkit-details-marker{display:none}.faq-indicator{width:20px;height:20px;flex:0 0 20px;position:relative}.faq-indicator:before,.faq-indicator:after{content:"";position:absolute;left:3px;top:9px;width:14px;height:2px;background:var(--pink)}.faq-indicator:after{transform:rotate(90deg)}details[open] .faq-indicator:after{transform:rotate(0)}details>p{font-size:15px;padding:0 28px 24px 0;line-height:1.9}.about{background:var(--aqua)}.about-layout{display:grid;grid-template-columns:1fr 1fr;gap:10%;align-items:center}.about-copy>p:first-child{font-size:18px;color:#354442;line-height:2}.about-note{font-size:14px;margin-top:25px;color:#536661}.site-footer{padding-block:42px 24px}.footer-top{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-bottom:36px}.footer-brand{font-size:31px}.footer-brand .brand-sub{display:inline-block;letter-spacing:1px;margin:0 0 0 5px}.footer-top>span{color:var(--muted);font-size:15px}.footer-top>a:last-child{font-size:14px}.footer-legal{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:center;flex-wrap:wrap;gap:12px 28px;font-size:13px;color:var(--muted)}.footer-legal a{text-decoration:underline;text-underline-offset:4px}
@media(min-width:1500px){.hero{padding-top:90px}.hero h1{font-size:64px}}
@media(max-width:1000px){.shell{width:calc(100% - 56px)}.hero{gap:30px;padding-top:60px}.hero h1{font-size:41px;letter-spacing:-1.8px}.hero-description{font-size:16px}.hero-actions{gap:18px}.brand-portrait{width:300px;padding:18px}.hero-bottom{margin-top:40px}.features{gap:25px}.feature h3{font-size:20px}.guide-layout{gap:7%}.faq{gap:6%}.faq h2{font-size:28px}.section-space{padding-block:75px}}
@media(max-width:720px){html{scroll-padding-top:20px}.shell{width:calc(100% - 40px)}.site-header{min-height:90px;gap:18px;flex-wrap:wrap;padding-block:18px}.brand{font-size:25px}.brand-icon{width:40px;height:40px}.site-header nav{gap:20px;font-size:13px}.brand-sub{font-size:12px}.hero{grid-template-columns:1fr;padding-top:48px;gap:0}.hero-copy{padding-bottom:0}.hero h1{font-size:clamp(31px,7.4vw,48px);letter-spacing:-1.4px}.hero-description{max-width:470px;margin-top:22px;line-height:1.85}.hero-actions{margin-top:25px;gap:22px}.button{padding:13px 19px;gap:24px}.brand-portrait{margin-top:48px;margin-bottom:8px;width:290px}.hero-bottom{margin-top:39px;gap:12px;align-items:flex-start}.hero-bottom span:last-child{font-size:10px;letter-spacing:.8px;text-align:right;max-width:130px}.wordmark-band{padding:10px}.wordmark-band>div{font-size:17vw}.section-space{padding-block:60px}.section-intro{display:block}.section-intro>p{margin-top:20px;max-width:100%}.features{grid-template-columns:1fr;gap:28px;margin-top:32px}.feature{position:relative;padding:22px 0 0 45px}.feature-number{position:absolute;top:22px;left:0;margin:0}.feature p{margin-top:12px}.raw-note{grid-template-columns:1fr;gap:8px;padding:22px;margin-top:30px}.guide-layout{grid-template-columns:1fr;gap:34px}.guide-intro>p:not(.section-label){max-width:100%;margin-top:20px}.guide-arrow{display:none}.steps li{gap:12px}.faq{grid-template-columns:1fr;gap:28px}.faq h2{font-size:28px}.about-layout{grid-template-columns:1fr;gap:27px}.about-copy>p:first-child{font-size:17px}.footer-top{flex-wrap:wrap;gap:22px;padding-bottom:28px}.footer-top>span{display:none}.footer-brand{font-size:27px}.footer-brand .brand-sub{font-size:12px}.footer-legal{gap:9px 18px;font-size:12px}.site-footer{padding-top:32px}summary{font-size:16px}}
@media(max-width:380px){.site-header nav{width:100%;justify-content:space-between}.hero-actions{gap:16px}.text-link{font-size:13px}.brand-portrait{width:255px}.hero-logo{width:217px;height:217px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}