.free-book-page{background:var(--mist)}
.free-breadcrumb{padding:23px 0 0;color:var(--muted);font-size:14px}.free-breadcrumb a{color:var(--blue)}
.free-hero{padding:42px 0 78px}.free-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center}
.free-hero-copy h1{max-width:760px;margin:16px 0 13px;color:var(--night);font-size:clamp(38px,5.2vw,62px);line-height:1.42;letter-spacing:-.6px}.free-hero-copy>p{max-width:720px;color:var(--muted);font-size:17px}.free-subtitle{margin-bottom:12px!important;color:var(--blue)!important;font-size:22px!important;font-weight:900}
.free-label,.download-chip{display:inline-flex;padding:7px 12px;border-radius:999px;background:#e8f0ff;color:var(--blue);font-size:13px;font-weight:900}.free-highlights,.download-meta{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0}.free-highlights span,.download-meta span{padding:7px 11px;border:1px solid var(--line);border-radius:10px;background:#fff;color:#425a70;font-size:13px;font-weight:700}
.free-cover-wrap{display:grid;justify-items:center;gap:25px;padding:42px 20px;border:1px solid #d7e4fb;border-radius:31px;background:linear-gradient(150deg,#eef5ff,#fff);box-shadow:var(--shadow)}.free-cover{position:relative;width:min(315px,88%);min-height:435px;padding:38px 34px;border-radius:12px 27px 27px 12px;background:linear-gradient(145deg,#0c4076,#06172b);color:#fff;box-shadow:-22px 30px 50px rgba(6,23,43,.28);transform:rotate(-3deg);overflow:hidden}.free-cover::after{content:"";position:absolute;left:-90px;bottom:-110px;width:300px;height:300px;border:45px solid rgba(255,255,255,.06);border-radius:50%}.free-cover small{color:#f4c66c;font-weight:800}.free-cover strong{display:block;margin-top:34px;color:#67a0ff;font-size:88px;line-height:1}.free-cover h2{position:relative;z-index:2;margin:10px 0;color:#fff;font-size:27px;line-height:1.65}.free-cover p{position:absolute;right:34px;bottom:27px;z-index:2;margin:0;color:#d7e3ee;font-size:13px}.cover-note{color:var(--muted);font-size:13px}
.free-content{padding:82px 0}.free-content.white{background:#fff}.problem-layout{display:grid;grid-template-columns:.65fr 1.35fr;gap:60px;align-items:start}.problem-layout h2,.free-section-head h2,.example-copy h2,.knowledge-grid h2,.author-feature h2{margin:8px 0 13px;color:var(--night);font-size:clamp(31px,4vw,43px);line-height:1.55}.prose-card{padding:33px;border:1px solid var(--line);border-radius:24px;background:#fff;box-shadow:0 18px 45px rgba(6,23,43,.055)}.prose-card p{color:var(--muted);font-size:17px}.prose-card blockquote{margin:25px 0 0;padding:19px 22px;border-right:4px solid var(--gold);border-radius:14px;background:var(--mist);color:var(--night);font-weight:800}
.levels-section{background:linear-gradient(180deg,#f4f8ff,var(--mist))}.free-section-head{max-width:820px;margin-bottom:34px}.free-section-head>p{color:var(--muted);font-size:17px}.level-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.level-card{padding:29px;border:1px solid var(--line);border-top:4px solid var(--blue);border-radius:23px;background:#fff}.level-card:nth-child(3),.level-card:nth-child(4){border-top-color:var(--gold)}.level-no{color:var(--blue);font-size:13px;font-weight:900}.level-card h3{margin:9px 0 7px;color:var(--night);font-size:23px}.level-card>p{color:var(--muted);font-size:14px}.level-card ul{display:grid;grid-template-columns:repeat(2,1fr);gap:7px 18px;margin:18px 0 0;padding:0;list-style:none}.level-card li{position:relative;padding-right:20px;color:#425a70;font-size:14px}.level-card li::before{content:"✓";position:absolute;right:0;color:var(--green);font-weight:900}
.example-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}.example-copy>p{color:var(--muted);font-size:17px}.action-box{margin-top:24px;padding:21px;border:1px solid #cbdcfb;border-radius:17px;background:#f2f7ff}.action-box b{color:var(--blue);font-size:17px}.action-box p{margin:7px 0 0;color:#50677d}.dialogue-list{display:grid;gap:11px;padding:30px;border-radius:24px;background:linear-gradient(145deg,var(--navy),var(--night));color:#fff;box-shadow:var(--shadow)}.dialogue-list p{margin:0;padding:12px 14px;border:1px solid rgba(255,255,255,.1);border-radius:12px;background:rgba(255,255,255,.05);color:#d5e1ec}.dialogue-list b{color:#f4c66c}.dialogue-list strong{margin-top:8px;color:#fff;font-size:18px}
.knowledge-section{background:var(--mist)}.knowledge-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}.knowledge-grid p{color:var(--muted);font-size:17px}.audience-list{display:grid;gap:10px;margin:0;padding:0;list-style:none}.audience-list li{position:relative;padding:14px 48px 14px 17px;border:1px solid var(--line);border-radius:14px;background:#fff;color:#324b63;font-weight:700}.audience-list li::before{content:"✓";position:absolute;right:15px;top:13px;display:grid;place-items:center;width:25px;height:25px;border-radius:8px;background:#e7f6ef;color:var(--green)}
.author-feature{display:grid;grid-template-columns:390px 1fr;gap:48px;align-items:center}.author-photo{height:430px;border-radius:27px;overflow:hidden;background:var(--night);box-shadow:var(--shadow)}.author-photo img{width:100%;height:100%;object-fit:cover;object-position:center 18%}.author-feature>div:last-child>p{color:var(--muted);font-size:16px}.author-role{color:var(--blue)!important;font-weight:800}
.download-section{padding:80px 0;background:var(--night)}.download-box{display:grid;grid-template-columns:1fr .82fr;gap:45px;align-items:center}.download-copy h2{margin:16px 0 12px;color:#fff;font-size:clamp(32px,4.3vw,48px);line-height:1.52}.download-copy>p{max-width:650px;color:#c0d0de;font-size:17px}.download-chip{background:rgba(255,255,255,.09);color:#f4c66c}.download-meta span{border-color:rgba(255,255,255,.13);background:rgba(255,255,255,.06);color:#d8e4ee}.download-form-card{padding:29px;border-radius:24px;background:#fff;box-shadow:0 25px 65px rgba(0,0,0,.28)}.download-form-card label small{color:#8796a5;font-weight:500}.download-form-card .field:has(#bookCode[hidden]){display:none}.download-form-card .btn{width:100%}.privacy-note{display:block;margin-top:5px;color:#7f8e9f;line-height:1.8}
.last-question{padding:66px 0;background:#fff;text-align:center}.last-question .container{max-width:850px}.last-question p{margin-bottom:5px;color:var(--night);font-size:22px;font-weight:800}.last-question strong{display:block;margin-bottom:23px;color:var(--blue)}
@media(max-width:980px){.free-hero-grid,.problem-layout,.example-layout,.knowledge-grid,.author-feature,.download-box{grid-template-columns:1fr}.free-cover-wrap{width:min(560px,100%);margin:auto}.problem-layout{gap:20px}.author-photo{width:min(480px,100%);margin:auto}.download-copy{text-align:center}.download-meta{justify-content:center}}
@media(max-width:680px){.free-breadcrumb{padding-top:16px}.free-hero{padding:28px 0 58px}.free-hero-copy h1{font-size:36px}.free-subtitle{font-size:19px!important}.free-highlights{display:grid}.free-hero-copy .btn{width:100%}.free-cover-wrap{padding:30px 12px;border-radius:23px}.free-cover{min-height:390px;padding:30px 27px}.free-cover strong{font-size:72px}.free-cover h2{font-size:24px}.free-content{padding:62px 0}.prose-card{padding:24px}.level-grid{grid-template-columns:1fr}.level-card{padding:24px}.level-card ul{grid-template-columns:1fr}.dialogue-list{padding:22px}.author-photo{height:380px}.download-section{padding:62px 0}.download-form-card{padding:23px}.last-question p{font-size:19px}.last-question .btn{width:100%}}
@media(max-width:380px){.free-hero-copy h1{font-size:31px}.free-cover{width:94%;min-height:370px}.free-cover h2{font-size:22px}.level-card h3{font-size:21px}}