:root{--ink:#162f2b;--muted:#596964;--green:#244d40;--lime:#d5f776;--line:#dce4df;--paper:#fff;--soft:#f3f6f3}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--paper);font-size:16px;line-height:1.65}a{color:inherit}button{font:inherit;cursor:pointer}a,button{-webkit-tap-highlight-color:transparent}:focus-visible{outline:3px solid #698d22;outline-offset:5px}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.12;letter-spacing:-.045em}p{color:var(--muted)}.wrap{width:min(1160px,calc(100% - 64px));margin-inline:auto}.preview{background:#eff3ea;text-align:center;padding:7px 20px;font-size:12px;color:#52614b}header{background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.nav{height:86px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-size:22px;font-weight:700;letter-spacing:-.8px}.brandmark{display:grid;place-items:center;width:35px;height:35px;border-radius:9px;background:var(--ink);color:var(--lime);font-size:29px;line-height:1}.nav nav{display:flex;gap:28px}.nav nav a{text-decoration:none;font-size:14px;color:var(--muted)}.nav nav a:hover,.textlink:hover{text-decoration:underline}.button{display:inline-flex;align-items:center;justify-content:center;gap:22px;text-decoration:none;font-size:15px;font-weight:600;padding:17px 23px;border:1px solid transparent;border-radius:7px;line-height:1.35;transition:background .2s,transform .2s}.button:hover{transform:translateY(-2px)}.dark{background:var(--ink);color:white}.dark:hover{background:#285146}.small{padding:12px 17px;font-size:14px}.lime{background:var(--lime);color:var(--ink)}.hero{display:grid;grid-template-columns:1.15fr 1fr;gap:65px;align-items:center;padding-top:78px;padding-bottom:74px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:1.9px;margin-bottom:22px}h1{font-size:clamp(45px,4.8vw,66px);font-weight:600;line-height:1.08}h1 span{color:#65802f}.lead{font-size:18px;max-width:505px;margin-top:26px;line-height:1.7}.actions{display:flex;gap:22px;align-items:center;margin-top:31px;flex-wrap:wrap}.textlink{font-size:14px;text-underline-offset:5px;font-weight:600}.fine{font-size:13px;line-height:1.6}.hero-fine{margin-top:17px}.learning-card{background:var(--ink);color:white;border-radius:16px;padding:30px;box-shadow:0 20px 45px #142f2b14;position:relative}.card-top{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:10px;letter-spacing:1.1px;color:#c5d4ca}.pill{font-size:10px;border:1px solid #688170;padding:5px 9px;border-radius:25px;letter-spacing:0}.learning-card h2{font-size:32px;margin-top:30px;letter-spacing:-1.1px;font-weight:500;line-height:1.2}.diagram{margin:30px 0}.diagram-line{display:flex;align-items:center;gap:16px;padding:18px 0;border-top:1px solid #ffffff24}.diagram-line>span{color:var(--lime);font-size:13px}.diagram-line strong{display:block;font-weight:500;font-size:18px}.diagram-line small{font-size:13px;color:#b9cbc2;display:block;margin-top:3px}.diagram-line b{font-size:21px;font-weight:400;color:var(--lime);margin-left:auto}.card-bottom{display:flex;align-items:center;gap:13px;background:#ffffff0d;border:1px solid #ffffff12;border-radius:7px;padding:12px}.card-bottom p{color:white;font-size:13px}.card-bottom small{display:block;color:#b9cbc2;font-size:11px}.book-icon{font-size:30px;color:var(--lime);line-height:1.2}.principles{display:grid;grid-template-columns:repeat(3,1fr);border-block:1px solid var(--line);padding-block:22px;font-size:15px;font-weight:600}.principles div+div{border-left:1px solid var(--line);padding-left:42px}.principles span{font-size:12px;color:#768475;margin-right:16px;font-weight:400}.section{padding-block:90px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:40px;margin-bottom:38px}h2{font-size:40px;font-weight:500;line-height:1.18}.section-heading p{max-width:335px;font-size:15px}.modules{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.modules article{padding:28px;border:1px solid var(--line);border-radius:10px}.number{font-size:30px;display:block;font-weight:400;color:#9baa96;margin-bottom:38px}.tag{font-size:10px;letter-spacing:1.35px;font-weight:700;color:#647b51}.modules h3{font-size:27px;margin-top:14px;font-weight:500;line-height:1.2}.modules p{font-size:15px;margin-top:18px;min-height:100px}.modules a{display:flex;gap:10px;justify-content:space-between;border-top:1px solid var(--line);padding-top:20px;margin-top:26px;font-size:13px;font-weight:600;text-decoration:none}.modules a:hover{text-decoration:underline}.approach{background:var(--soft);padding-block:73px}.approach-grid{display:grid;grid-template-columns:1fr 1fr;gap:100px}.approach-grid>div>p{margin-top:22px;font-size:16px}.approach-grid .textlink{display:inline-block;margin-top:25px}.approach-list>div{display:flex;gap:18px;padding-block:19px;border-bottom:1px solid #d8e1d6}.approach-list>div:first-child{padding-top:0}.approach-list>div:last-child{border:0}.approach-list span{background:#e0e9d6;width:27px;height:27px;flex-shrink:0;display:grid;place-items:center;border-radius:50%;font-size:14px}.approach-list p{font-size:14px}.approach-list strong{display:block;font-size:17px;color:var(--ink);margin-bottom:5px}.sample{border:1px solid var(--line);border-radius:12px;overflow:hidden}.tabs{display:flex;background:var(--soft);border-bottom:1px solid var(--line)}.tabs button{border:0;border-right:1px solid var(--line);background:transparent;color:var(--muted);padding:20px 26px;font-size:14px;flex:1}.tabs button[aria-selected=true]{background:var(--ink);color:white}.sample article{padding:36px 42px;max-width:920px}.sample h3{font-size:28px;font-weight:500;margin-bottom:18px}.sample p{font-size:16px}.sample .eyebrow{font-size:11px;color:#65802f}.takeaway{background:var(--soft);border-left:3px solid #90a864;padding:18px 23px;margin-block:23px}.takeaway p{margin-top:6px;font-size:15px}.sample .fine{font-size:13px}.source-note{font-size:12px;margin-top:18px}.source-note a{text-underline-offset:3px}.contact{background:var(--ink);border-radius:15px;color:white;padding:46px 50px;display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.contact .eyebrow{color:var(--lime)}.contact h2{font-size:43px}.contact p{color:#c2d1c8;margin-top:18px;font-size:15px}.contact-action{text-align:center}.contact-action .button{width:100%}.contact-action .fine{font-size:12px;margin:14px 0 21px}.contact-action>a{font-size:13px;text-underline-offset:5px}.faq{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px}details{border-bottom:1px solid var(--line);padding:19px 0}details:first-child{padding-top:0}summary{cursor:pointer;font-size:16px;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:18px}summary::-webkit-details-marker{display:none}summary:after{content:'+';font-weight:400;font-size:23px;line-height:1.1}details[open] summary:after{content:'−'}details p{font-size:14px;margin-top:15px}.risk{padding:24px 28px;background:var(--soft);border-radius:8px;font-size:13px}.risk strong{font-size:14px}.risk p{margin-top:8px}footer{padding-top:44px;padding-bottom:24px}.footer-top,.footer-bottom{display:flex;justify-content:space-between;gap:20px;align-items:center}.footer-top>div{display:flex;gap:23px;align-items:center}.footer-top button{border:0;background:none;color:var(--muted);padding:8px 0;font-size:13px}.footer-top a:not(.brand){font-size:13px;text-decoration:none;color:var(--muted)}.footer-bottom{border-top:1px solid var(--line);margin-top:25px;padding-top:20px;font-size:12px;color:var(--muted)}dialog{max-width:650px;width:calc(100% - 32px);border:1px solid var(--line);border-radius:12px;padding:28px;color:var(--ink);max-height:85vh}dialog::backdrop{background:#10281fcc}.dialog-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;gap:15px}.dialog-head h2{font-size:28px}.dialog-head button{border:0;background:var(--soft);width:40px;height:40px;border-radius:50%;font-size:26px}#dialog-body p{margin:14px 0;font-size:15px}#dialog-body h3{font-size:19px;margin-top:23px}#dialog-body{overflow-wrap:anywhere}.skip{position:fixed;top:-100px;left:10px;z-index:99;padding:10px;background:white}.skip:focus{top:10px}[hidden]{display:none!important}@media(min-width:1450px){.hero{padding-block:95px}}@media(max-width:1000px){.hero{gap:30px}.nav nav{gap:16px}.nav nav a{font-size:12px}.learning-card{padding:23px}.learning-card h2{font-size:28px}.card-top{flex-wrap:wrap}.principles div+div{padding-left:20px}.modules article{padding:22px}.modules h3{font-size:24px}.modules p{min-height:130px}.approach-grid{gap:45px}.contact{gap:35px}.faq{gap:35px}}@media(max-width:760px){.wrap{width:calc(100% - 36px)}.preview{font-size:11px}.nav{height:71px}.brand{font-size:19px}.nav nav{display:none}.small{font-size:12px;padding:10px 12px;gap:8px}.hero{grid-template-columns:1fr;padding-block:44px;gap:35px}h1{font-size:clamp(39px,9.4vw,60px)}.lead{font-size:16px}.eyebrow{font-size:11px;margin-bottom:18px}.hero .actions{gap:18px}.hero .button{font-size:14px;padding:16px 20px}.learning-card{padding:26px}.learning-card h2{font-size:31px}.principles{padding-block:16px;gap:14px;grid-template-columns:1fr;font-size:14px}.principles div+div{border:0;padding:0}.section{padding-block:57px}h2{font-size:32px}.section-heading{display:block;margin-bottom:28px}.section-heading p{margin-top:18px;max-width:none}.modules{grid-template-columns:1fr;gap:16px}.modules article{padding:25px}.number{margin-bottom:22px}.modules h3{font-size:28px}.modules p{min-height:0}.modules a{font-size:14px}.approach{padding-block:48px}.approach-grid{grid-template-columns:1fr;gap:35px}.tabs button{font-size:12px;padding:15px 7px}.sample article{padding:25px 22px}.sample h3{font-size:26px}.sample p{font-size:15px}.source-note{font-size:12px}.contact{grid-template-columns:1fr;padding:30px 24px;gap:28px}.contact h2{font-size:36px}.faq{grid-template-columns:1fr;gap:28px}.risk{padding:22px}.footer-top,.footer-bottom{align-items:start;flex-direction:column;gap:15px}.footer-top>div{gap:20px}.fine{font-size:13px}.card-top,.pill{font-size:11px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* 第二版：以实际学习资料和 WhatsApp 报名为核心。 */
.hero{grid-template-columns:1.15fr 1fr;gap:56px;padding-block:58px}.hero h1{font-size:clamp(38px,4.3vw,59px);line-height:1.1}.hero .lead{font-size:17px;margin-top:22px}.hero h1 span{color:#476b21}.hero-benefits{list-style:none;padding:0;margin:20px 0;display:grid;gap:7px;font-size:15px}.hero-benefits li:before{content:'✓';color:#386d30;font-weight:bold;margin-right:10px}.hero .actions{margin-top:23px}.signup{background:#d5f776;color:#142f2b;border-color:#b4d950;box-shadow:0 4px 0 #a3c543;font-weight:700}.signup:hover{background:#c6ee5d}.hero .signup{background:#1d6b43;color:white;border-color:#1d6b43;box-shadow:0 4px 0 #134b2e;font-size:16px}.hero .signup:hover{background:#155a36}.cta-meta{font-size:12px;margin:12px 0 15px}.offer-card{padding:30px}.offer-card h2{font-size:32px}.offer-items{margin-top:30px}.offer-items>div{display:flex;gap:18px;padding:22px 0;border-bottom:1px solid #ffffff24}.offer-items>div>span{font-size:13px;color:#d5f776}.offer-items p{color:white}.offer-items strong{font-size:19px;font-weight:500;display:block}.offer-items small{color:#c1d1c7;font-size:14px;display:block;margin-top:5px}.offer-bottom{margin-top:25px;display:flex;justify-content:space-between;align-items:center;gap:18px}.offer-bottom span{font-size:10px;letter-spacing:1px;color:#c1d1c7}.offer-bottom a{font-size:13px;color:#d5f776;white-space:nowrap}.section{padding-block:66px}.approach-grid .button{margin-top:25px}.principles{font-size:14px}.modules h3{font-size:26px}.worksheet-link{display:flex;justify-content:space-between;gap:25px;align-items:center;padding:25px;background:#edf3e6;border-radius:10px;margin-top:22px}.worksheet-link p{font-size:13px;margin-top:5px}.worksheet-link .button{flex-shrink:0;font-size:13px}blockquote{margin:20px 0;padding:18px;border-left:3px solid #90ac4d;background:#f0f5e8;font-size:16px}.mobile-signup{display:none}.nav nav{gap:22px}.nav .small{font-size:13px}dialog .button{margin-top:12px}body:has(dialog[open]){overflow:hidden}.contact-action .fine{margin:15px 0}.contact-action .preview-contact{font-size:11px;color:#d7e0d9}
@media(max-width:1000px){.hero{gap:28px}.nav nav a{font-size:12px}.principles div+div{padding-left:16px}.offer-card h2{font-size:27px}.offer-card{padding:25px}.offer-bottom{flex-wrap:wrap}.modules h3{font-size:23px}}
@media(max-width:760px){body{padding-bottom:95px}.hero{grid-template-columns:1fr;padding-block:31px;gap:31px}.hero h1{font-size:clamp(32px,8.3vw,49px);letter-spacing:-.04em}.hero .eyebrow{font-size:10px;letter-spacing:1.2px}.hero .lead{font-size:16px;margin-top:18px;line-height:1.6}.hero-benefits{font-size:14px;margin:16px 0;gap:5px}.hero .actions{margin-top:18px}.hero .button{width:100%;padding:15px 14px;font-size:15px}.hero .textlink{font-size:13px}.cta-meta{font-size:11px;margin:10px 0 12px}.offer-card h2{font-size:29px}.offer-bottom{flex-wrap:nowrap}.principles{font-size:14px}.principles div+div{padding-left:0}.section{padding-block:45px}.modules h3{font-size:26px}.worksheet-link{align-items:stretch;flex-direction:column;padding:22px;gap:15px}.mobile-signup{display:block;position:fixed;bottom:0;left:0;right:0;padding:12px 18px calc(12px + env(safe-area-inset-bottom));background:#fffffff5;backdrop-filter:blur(10px);border-top:1px solid #dce4df;z-index:15}.mobile-signup .button{width:100%;font-size:14px;padding:14px 8px}.nav .small{font-size:11px;padding:11px 9px}.nav .brand{font-size:17px;gap:7px}.nav .brandmark{width:29px;height:29px;font-size:24px}.nav{gap:8px;height:64px}.contact h2{font-size:31px}.contact-action .button{font-size:14px}.footer-top>div{flex-wrap:wrap}html{scroll-padding-bottom:100px}.offer-items strong{font-size:18px}}

.legal-text,#dialog-body p{white-space:pre-line;overflow-wrap:anywhere}
[hidden]{display:none!important}

/* 法律页面及小屏可读性 */
.legal-page{max-width:850px;min-height:65vh}.legal-page h1{margin:28px 0}.legal-page h2{font-size:24px;margin:24px 0 12px}.legal-page p{margin:16px 0}.legal-notice{padding:16px 20px;background:var(--soft);border-left:3px solid #698d22;border-radius:4px}.legal-help{margin-top:32px;border-top:1px solid var(--line);padding-top:12px}.legal-help .button{margin:12px 12px 12px 0}.hero .preview-contact{margin-top:16px;color:var(--muted)}.dialog-head button{flex-shrink:0}#dialog-body>.textlink{display:block;margin-top:22px}.legal-page~footer{display:flex;flex-wrap:wrap;gap:12px}body[data-legal]{padding-bottom:0}
@media(max-width:380px){.nav .brand{font-size:15px}.nav .small{max-width:145px}.offer-bottom{flex-wrap:wrap}.tabs button{overflow-wrap:anywhere}.button{gap:10px}}