:root{--cream:#fff9e9;--paper:#fffef8;--ink:#142e50;--muted:#718096;--green:#079b79;--orange:#fb8817;--line:#f3dfb7;--app:"/app/";font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--cream);font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:80px}body{margin:0;line-height:1.65}img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}button,a,summary{touch-action:manipulation}a:focus-visible,summary:focus-visible{outline:3px solid var(--orange);outline-offset:4px}.wrap{width:88%;max-width:1120px;margin:auto}section{padding:clamp(24px,3.2vw,46px) 0}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.3}h2{font-size:clamp(23px,3vw,38px);font-weight:900;letter-spacing:-.025em}.lead{font-size:clamp(11px,1.25vw,16px);color:var(--muted);line-height:1.85;margin:12px 0 20px}.eyebrow{display:inline-flex;align-items:center;gap:6px;background:#def4dd;border-radius:99px;padding:3px 16px;color:#319679;font-size:clamp(10px,1.1vw,14px);font-weight:800;letter-spacing:.04em;margin-bottom:12px}.eyebrow img{width:18px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:46px;padding:9px 24px;border-radius:99px;font-size:clamp(11px,1.2vw,15px);font-weight:800;transition:transform .15s,box-shadow .15s}.btn:hover{transform:translateY(-2px)}.btn-primary{background:#069e7c;color:white;box-shadow:inset 0 3px 6px #c9f6da7a,0 5px 12px #02997622}.btn-ghost{border:1px solid #d9a75070;background:#ffffffc9}.icon{width:20px;height:20px}.cta-row{display:flex;gap:14px;align-items:center}.note{font-size:11px;color:var(--muted);margin-top:10px}
header{position:relative;z-index:10;background:#fffdf6}.bar{height:68px;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{display:flex;align-items:center;gap:7px;font-weight:900;font-size:20px;line-height:1.2}.brand img{height:44px;width:32px;object-fit:contain}.brand small{display:block;font-size:9px;letter-spacing:.12em;font-weight:500;color:var(--muted);margin-top:4px}.links{display:flex;gap:24px;font-size:12px;font-weight:700;color:#677789}.links a:hover{color:var(--green)}.acts{display:flex;gap:14px}.acts .btn{min-height:40px;font-size:12px;padding:8px 24px}
.hero{background:#fff6db url('landing-paper.webp') center/cover no-repeat;padding:34px 0 32px;overflow:hidden}.hero-grid{display:grid;grid-template-columns:44% 56%;align-items:center;position:relative;min-height:460px}.hero h1{font-size:clamp(29px,4.1vw,54px);font-weight:900;letter-spacing:-.04em;line-height:1.25}.hero h1 em{font-style:normal;color:var(--orange)}.hero .lead{max-width:435px;margin:18px 0 18px}.hero-visual{position:relative;width:116%;margin-left:-8%;align-self:end}.hero-visual>img{width:100%;aspect-ratio:1.4;object-fit:contain}.handwritten{position:absolute;right:8%;top:-3%;font-family:"Kaiti SC","STKaiti",serif;font-size:clamp(12px,1.6vw,20px);font-weight:700;color:#73816b;line-height:1.4;transform:rotate(-8deg)}.facts{display:flex;gap:12px;margin-top:22px}.fact{background:#ffffffca;border-radius:12px;padding:10px 18px;min-width:100px;font-size:12px;font-weight:700}.fact b{color:var(--orange);font-size:21px}.fact:first-child b{color:#2284ac}.fact small{display:block;font-size:11px;font-weight:500;color:var(--muted)}
.cpa{background:var(--paper) url('landing-paper.webp') center/cover no-repeat;text-align:center}.cpa .lead{margin:7px auto 22px}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:4%;text-align:left}.step{background:#fffffff2;border-radius:20px;padding:18px;box-shadow:0 10px 24px #d9bf7420}.tag{display:flex;align-items:center;gap:12px;font-weight:850;font-size:22px;margin-bottom:12px}.tag span{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:#ffa516;color:#fff;font-size:26px;box-shadow:inset 0 2px 4px #ffe6a9}.pad{background:#263941;padding:8px;border-radius:18px;box-shadow:0 7px 14px #152d4b2c}.pad img{width:100%;border-radius:10px}.step p{font-size:13px;color:var(--muted);margin-top:16px;line-height:1.7}.arrowline{font-size:12px;color:#5a987e;margin-top:18px}
.feature{display:grid;grid-template-columns:42% 54%;gap:4%;align-items:center}.feature ul{padding:0;margin:14px 0 0;list-style:none;display:grid;gap:12px;color:#65748a;font-size:14px}.feature li{display:flex;gap:10px;align-items:flex-start}.feature li img{width:22px;height:22px;flex-shrink:0}.feature li strong{color:#2e425f;margin-right:10px}.feature .lead{margin:8px 0 15px}.feedback-visual{position:relative;padding:10px 0}.feedback-visual .pad{transform:rotate(-2deg)}.feedback-note{position:absolute;z-index:2;right:-16px;top:-15px;background:#ffcf76;border-radius:50%;width:100px;height:100px;display:grid;place-content:center;text-align:center;font-size:16px;font-weight:800;color:#c77936;transform:rotate(9deg)}#mistakes{background:#fff6dc url('landing-paper.webp') center/cover no-repeat;padding-block:48px}
.gallery-sec{background:#e5f7ee;text-align:center}.gallery-sec .lead{margin:8px auto 20px}.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;text-align:left}.tile{background:#fffef8;padding:10px;border-radius:14px;box-shadow:0 3px 9px #9acaaf18}.tile>img{width:100%;aspect-ratio:1.65;object-fit:cover;border-radius:10px}.tile h3{font-size:16px;margin:9px 5px 0}.tile p{font-size:11px;color:var(--muted);margin:3px 5px}
#parents{background:#fffbef url('landing-paper.webp') center/cover no-repeat;padding-block:45px}.feature.rev{grid-template-columns:42% 54%;gap:4%}.feature.rev .text{order:2;position:relative}.feature.rev>.pad{transform:rotate(1deg)}#parents li{font-size:14px;display:list-item;list-style:disc;margin-left:18px}#parents li::marker{color:var(--orange)}#parents .text{padding-bottom:12px}.parent-momo{position:absolute;right:-40px;bottom:-25px;width:150px;transform:rotate(9deg);pointer-events:none}.quote{background:#fff0be;padding:18px 100px 18px 18px;border-radius:12px;font-size:12px;margin-top:22px;min-height:95px;color:#51677d}
#course{background:var(--paper);padding-block:28px}#course h2{font-size:30px}#course .lead{margin:8px 0 16px;font-size:13px}.books{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.book{border:1px solid var(--line);background:#fffdf7;border-radius:13px;padding:17px 16px}.book h3{font-size:18px}.count{font-size:11px;color:#329e89;margin:4px 0 10px}.book ol{margin:0;padding-left:18px;font-size:12px;color:#64758a}.book li{margin-top:2px}.book li::marker{color:#12a483}
.how{padding:28px 0 0;background:#fffaeb}.how>.wrap>h2{display:inline-block;font-size:30px;margin-left:16px}.how-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:12px}.card{background:#fffef8;border-radius:15px;padding:18px 15px;position:relative;padding-left:65px;box-shadow:0 5px 18px #d9bf7412}.card>img{position:absolute;width:36px;height:48px;object-fit:contain;left:17px;top:24px}.card h3{font-size:16px;margin-bottom:6px}.card p{font-size:12px;color:var(--muted)}.faq-section{position:relative;display:grid;grid-template-columns:18% 68%;gap:3%;padding:34px 0 18px}.faq-section>.eyebrow{align-self:start;justify-self:start}.faq{display:grid;gap:8px;background:#ffffffb0;border-radius:20px;padding:14px 18px}.faq details{border:1px solid #eddfc9;background:#fffefa;border-radius:10px;padding:5px 12px}.faq summary{font-size:13px;font-weight:700;cursor:pointer;min-height:26px;line-height:26px}.faq details p{font-size:13px;color:var(--muted);padding:10px 2px}.final{background:#fff7df url('landing-garden.webp') center bottom/cover no-repeat;text-align:center;padding:10px 0 45px;min-height:300px}.final>.wrap>img{width:96px;height:116px;object-fit:contain;margin:auto}.final h2{font-size:29px}.final .lead{font-size:13px;margin:8px auto 14px}.final .btn{min-width:200px}.final .note{font-size:11px}footer{background:#fffdf6;font-size:11px;color:#829092;padding:14px 0}footer .wrap{display:flex;align-items:center;justify-content:space-between;gap:18px}footer .brand{font-size:15px}footer .brand img{height:30px;width:24px}
@media(min-width:641px) and (max-width:1000px){.bar{height:44px;gap:8px}.brand{font-size:14px}.brand img{width:24px;height:32px}.brand small{font-size:6px}.links{gap:12px;font-size:9px}.acts{gap:8px}.acts .btn{padding:4px 17px;font-size:9px;min-height:29px}.hero{padding:20px 0}.hero-grid{min-height:290px}.hero .lead{margin:12px 0}.hero .btn{min-height:34px;padding:6px 13px;font-size:10px}.hero .icon{width:15px}.cta-row{gap:10px}.hero .note{font-size:8px}.facts{gap:8px;margin-top:14px}.fact{padding:7px 12px;min-width:74px;font-size:9px}.fact b{font-size:16px}.fact small{font-size:9px}.eyebrow{margin-bottom:8px;padding:2px 12px}.eyebrow img{width:13px}.step{padding:13px;border-radius:15px}.tag{font-size:17px;gap:8px;margin-bottom:9px}.tag span{width:28px;height:28px;font-size:20px}.pad{padding:5px;border-radius:12px}.pad img{border-radius:7px}.step p{font-size:10px;margin-top:11px}.arrowline{font-size:9px;margin-top:12px}#mistakes,#parents{padding-block:28px}.feature li,#parents li{font-size:10px}.feature ul{gap:8px}.feature li img{width:16px;height:16px}.feature li strong{margin-right:5px}.feedback-note{width:73px;height:73px;font-size:11px;right:-8px}.gallery{gap:10px}.tile{padding:7px}.tile h3{font-size:12px}.tile p{font-size:9px}.parent-momo{width:108px;right:-24px}.quote{font-size:10px;padding:12px 65px 12px 12px;min-height:70px}#course h2,.how>.wrap>h2{font-size:23px}#course .lead{font-size:10px}.books{gap:10px}.book{padding:12px 11px}.book h3{font-size:13px}.count{font-size:8px}.book ol{font-size:9px;padding-left:13px}.how-grid{gap:12px}.card{padding:12px 10px 12px 42px}.card>img{width:24px;height:35px;left:10px;top:16px}.card h3{font-size:12px}.card p{font-size:9px}.faq-section{padding-top:24px}.faq{padding:10px 13px;gap:6px}.faq details{padding:2px 10px}.faq summary{font-size:10px;min-height:20px;line-height:20px}.faq details p{font-size:11px}.final{min-height:235px;padding-bottom:28px}.final>.wrap>img{width:70px;height:90px}.final h2{font-size:23px}.final .lead{font-size:10px}.final .btn{min-height:35px;font-size:11px}.final .note{font-size:9px}footer{font-size:8px;padding:8px 0}}
@media(min-width:641px) and (max-width:1000px){
section{padding-block:18px}.hero{padding-block:14px}.hero-grid{min-height:290px}.hero .note{display:none}.hero .lead{font-size:10px;line-height:1.7}.hero .facts{margin-top:12px}.hero .eyebrow{margin-bottom:6px}
.cpa .lead{margin:5px auto 13px}.step{padding:10px}.tag{margin-bottom:6px;font-size:16px}.tag span{width:25px;height:25px;font-size:18px}.step p{font-size:9px;line-height:1.5;margin-top:8px}.arrowline{margin-top:8px;font-size:8px}
#mistakes,#parents{padding-block:21px}.feature .lead{font-size:10px;line-height:1.7;margin:6px 0 10px}.feature ul{gap:6px;margin-top:10px}.feature li,#parents li{font-size:9px}.feature li img{width:14px;height:14px}.feature .eyebrow{margin-bottom:5px}.feature h2{font-size:22px}.quote{margin-top:12px;font-size:9px;line-height:1.65;padding-block:9px;min-height:55px}
.gallery-sec h2{font-size:22px}.gallery-sec .lead{font-size:10px;line-height:1.6;margin:5px auto 13px}.tile h3{margin-top:5px}.tile p{font-size:8px;margin-top:1px;line-height:1.5}
#course{padding-block:18px}#course .lead{margin:5px 0 10px;line-height:1.5;font-size:9px}.book{padding:9px}.book ol{line-height:1.4;font-size:8px}.book li{margin:0}.count{margin:3px 0 6px}.book h3{font-size:12px}
.how{padding-top:17px}.card{padding-block:10px}.card h3{font-size:11px;margin-bottom:4px}.card p{font-size:8px;line-height:1.6}.faq-section{padding:20px 0 12px}.faq{padding:8px 12px;gap:4px}.faq details{padding:0 10px}.faq summary{font-size:9px;min-height:19px;line-height:19px}
.final{min-height:190px;padding:0 0 20px}.final>.wrap>img{width:55px;height:70px}.final h2{font-size:21px}.final .lead{margin:4px auto 9px;font-size:9px}.final .note{font-size:8px;margin-top:6px}.final .btn{min-height:30px;padding:5px 18px;min-width:155px}
}
@media(max-width:640px){.wrap{width:90%}.bar{height:62px}.brand{font-size:17px}.brand small{font-size:8px}.links{display:none}.acts{gap:7px}.acts .btn{padding:8px 14px;min-height:38px}.acts .btn-ghost{display:none}.hero-grid{display:flex;flex-direction:column;min-height:0;align-items:stretch}.hero h1{font-size:39px}.hero .lead{font-size:14px;max-width:none}.hero .eyebrow{font-size:12px}.hero .btn{font-size:13px;min-height:44px}.hero-visual{width:108%;margin:25px -4% -10px}.handwritten{top:0;font-size:15px}.facts{margin-top:16px}.fact{flex:1;min-width:0;padding:8px 12px}.hero .note{font-size:10px}.steps,.feature,.feature.rev{grid-template-columns:1fr;gap:26px}.step{padding:20px}.step p,.lead{font-size:14px}.tag{font-size:21px}.cpa .lead{margin-bottom:22px}.arrowline{font-size:12px}.feature .lead{font-size:14px}.feature ul{font-size:13px}.feedback-visual{margin:0 7px}.feedback-note{width:77px;height:77px;font-size:13px;right:-4px}.gallery,.books{grid-template-columns:repeat(2,1fr);gap:12px}.tile h3{font-size:14px}.tile p{font-size:11px}.feature.rev .text{order:0}#parents .feature{gap:25px}#parents li{font-size:13px}.parent-momo{width:115px;right:-8px;bottom:0}.quote{padding-right:95px}.book{padding:13px}.book h3{font-size:16px}.book ol{font-size:11px}.count{font-size:10px}#course h2{font-size:26px}#course .lead{font-size:12px}.how>.wrap>h2{display:block;margin:0;font-size:26px}.how-grid{grid-template-columns:1fr;gap:12px}.card h3{font-size:16px}.card p{font-size:13px}.faq-section{display:block;padding-top:30px}.faq{padding:12px}.faq summary{font-size:12px;min-height:35px;line-height:35px}.final{padding:15px 0 45px;background-size:auto 100%}.final h2{font-size:24px}.final .lead{font-size:12px}.final .note{font-size:10px}footer .wrap{flex-wrap:wrap;justify-content:center;gap:8px}footer .wrap>span:last-child{width:100%;text-align:center}section{scroll-margin-top:20px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}

/* 阅读字号不再随整张参考图等比缩小，窄屏通过换行容纳内容。 */
.lead,.hero .lead,.feature .lead,.gallery-sec .lead,#course .lead,.final .lead{font-size:16px;line-height:1.85}
.links,.btn,.acts .btn,.hero .btn,.final .btn{font-size:15px}
.brand small,.note,.hero .note,.final .note,.fact small,.count,footer{font-size:12px}
.eyebrow,.hero .eyebrow,.fact,.arrowline{font-size:14px}
.step p,.tile p,.card p,.book ol,.quote{font-size:14px;line-height:1.8}
.feature li,#parents li,.faq summary,.faq details p{font-size:16px;line-height:1.8}
.tile h3,.book h3,.card h3{font-size:18px;line-height:1.5}
.faq summary{min-height:36px;padding:4px 0}.faq details{padding:5px 12px}
.faq{gap:10px}.feature ul{gap:12px}.book li{margin-top:4px}.count{margin:5px 0 12px}
.step p{margin-top:14px}.quote{padding-right:120px}.tile p{margin-top:5px}
.cta-row{flex-wrap:wrap}.facts{flex-wrap:wrap}.acts .btn,.hero .btn,.final .btn{min-height:44px}
@media(min-width:641px) and (max-width:1000px){
  section{padding-block:30px}.hero{padding-block:26px}#mistakes,#parents{padding-block:32px}
  .bar{height:auto;min-height:72px;flex-wrap:wrap;padding-block:12px;gap:12px}
  .brand{font-size:20px}.brand img{width:30px;height:40px}.links{order:3;width:100%;justify-content:center;gap:24px}
  .hero .lead{margin-block:16px}.hero .note{display:block}.hero .icon{width:18px}
  .hero-grid{align-items:center}.hero-visual{align-self:center}.fact{min-width:0;padding:8px 10px}
  .step{padding:14px}.tag{font-size:19px}.eyebrow{margin-bottom:12px}
  .feature li img{width:20px;height:20px}.feedback-note{font-size:12px}
  .quote{padding-right:90px}.parent-momo{right:-12px}.gallery,.books{grid-template-columns:repeat(2,1fr);gap:16px}
  .tile{padding:12px}.book{padding:16px}.card{padding:14px 12px 14px 44px}
  .how-grid{gap:14px}.card h3{font-size:16px}.faq-section{grid-template-columns:18% 79%;padding-block:26px}
  .final{padding-bottom:30px}.final .lead{margin-block:10px}.final .note{margin-top:10px}
}
@media(max-width:640px){
  .lead,.hero .lead,.feature .lead,.gallery-sec .lead,#course .lead,.final .lead,
  .step p,.tile p,.card p,.book ol,.quote,.feature li,#parents li,.faq summary,.faq details p{font-size:15px;line-height:1.85}
  .brand{font-size:18px}.brand small{font-size:12px;letter-spacing:0}.bar{gap:10px}
  .acts .btn{padding-inline:12px;font-size:14px}.book h3,.tile h3{font-size:17px}
  .quote{padding-right:100px}.faq summary{line-height:1.8;min-height:40px}
  .hero .note,.final .note{font-size:12px}.final .lead{margin-block:12px}
}
/* Tony 确认：正文与辅助信息统一 18px，标题保留视觉层级。 */
.lead,.hero .lead,.feature .lead,.gallery-sec .lead,#course .lead,.final .lead,
.links,.btn,.acts .btn,.hero .btn,.final .btn,.brand small,
.note,.hero .note,.final .note,.fact small,.count,footer,
.eyebrow,.hero .eyebrow,.fact,.arrowline,.step p,.tile p,.card p,.book ol,.quote,
.feature li,#parents li,.faq summary,.faq details p,.tile h3,.book h3,.card h3,
.feedback-note,.handwritten,footer .brand{font-size:18px}
.brand small{letter-spacing:0}.links{gap:18px}.facts{gap:10px}
@media(max-width:640px){.bar{height:auto;min-height:76px;padding-block:12px;flex-wrap:wrap}.brand{font-size:20px}.acts .btn{padding-inline:14px}}
.feedback-note{width:112px;height:112px;line-height:1.5}
@media(max-width:1000px){footer .wrap{flex-wrap:wrap;justify-content:center;gap:10px}footer .wrap>span:last-child{width:100%;text-align:center}}