:root{--erh-accent:#56634a;--erh-paper:#f4eddf;--erh-ink:#332f29;--erh-wood:#281d14;--erh-line:#cdbda4;--erh-shadow:0 20px 60px rgba(21,14,8,.28)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--erh-ink);background:#eee5d5;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6}button,input,textarea{font:inherit}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.erh-header{height:72px;display:flex;align-items:center;gap:32px;padding:0 4vw;background:#faf7ef;border-bottom:1px solid rgba(74,62,45,.12);position:sticky;top:0;z-index:40}.erh-brand{display:flex;align-items:center;gap:12px;min-width:250px}.erh-brand strong{display:block;font-family:Georgia,serif;font-style:italic;font-size:25px;font-weight:500;letter-spacing:.01em}.erh-brand small{display:block;font-size:10px;letter-spacing:.08em}.erh-logo-mark{font-size:34px;color:var(--erh-accent)}.erh-nav{display:flex;justify-content:center;gap:26px;flex:1;font-size:12px;letter-spacing:.07em}.erh-nav a{position:relative}.erh-nav a:after{content:"";position:absolute;height:1px;left:0;right:100%;bottom:-7px;background:var(--erh-accent);transition:.2s}.erh-nav a:hover:after{right:0}.erh-tools{display:flex;align-items:center;gap:7px;font-size:12px}.erh-lang.is-active{font-weight:800}.erh-menu-toggle{display:none;border:0;background:transparent;font-size:24px}.erh-cover{min-height:640px;background-image:linear-gradient(90deg,rgba(22,15,9,.25),rgba(22,15,9,.05)),var(--cover);background-size:cover;background-position:center;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}.erh-cover-overlay{width:min(1100px,94vw);min-height:560px;display:grid;grid-template-columns:1fr 1.25fr 1fr;align-items:center;gap:24px;position:relative}.erh-cover-phrase{white-space:pre-line;color:#fff7e9;font-family:Georgia,serif;font-style:italic;font-size:clamp(25px,2.5vw,39px);max-width:300px;text-shadow:0 2px 6px rgba(0,0,0,.35)}.erh-book-cover{grid-column:2;background:linear-gradient(135deg,#9c7a52,#715238 56%,#8d6b47);border:1px solid #3f2b1c;border-radius:10px;min-height:445px;padding:70px 36px;text-align:center;color:#18100b;box-shadow:0 24px 45px rgba(0,0,0,.36),inset 0 0 0 5px rgba(56,34,19,.18),inset 0 0 0 8px rgba(228,198,149,.12);position:relative}.erh-book-cover:before{content:"";position:absolute;inset:14px;border:1px solid rgba(45,29,16,.5);border-radius:8px}.erh-book-cover h1{font-family:Georgia,serif;font-style:italic;font-weight:500;font-size:48px;margin:30px 0 4px}.erh-book-cover p{font-family:Georgia,serif;font-style:italic;font-size:22px;margin:0 0 44px}.erh-cover-sketch{font-size:28px;letter-spacing:.3em}.erh-cover-seal{font-size:11px;letter-spacing:.28em;line-height:2}.erh-open{position:absolute;left:50%;bottom:-3px;transform:translateX(-50%);border:0;border-radius:6px;background:var(--erh-accent);color:#fff;padding:16px 34px;letter-spacing:.06em;box-shadow:0 8px 18px rgba(0,0,0,.2);cursor:pointer}.erh-open span{margin-left:12px}.erh-values{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#d8cbb7;padding:1px}.erh-values div{background:#f7f1e5;display:flex;align-items:center;justify-content:center;gap:12px;padding:24px 12px;font-size:20px;color:var(--erh-accent)}.erh-values strong{font-size:11px;letter-spacing:.12em;color:var(--erh-ink);max-width:110px}.erh-journal{background:linear-gradient(rgba(33,24,16,.86),rgba(33,24,16,.86)),url('../demo/cover.jpg') center/cover;padding:50px 4vw 28px;min-height:760px}.erh-reader-wrap{max-width:1180px;margin:auto;position:relative;padding-right:138px}.erh-reader{display:grid;grid-template-columns:1fr 1fr;min-height:620px;border-radius:16px;box-shadow:var(--erh-shadow);position:relative;background:#d7c4a5}.erh-reader:after{content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;background:linear-gradient(transparent,#7c6546 5%,#4e3c29 50%,#7c6546 95%,transparent);z-index:4;box-shadow:0 0 8px rgba(0,0,0,.35)}.erh-page{background-color:var(--erh-paper);background-image:repeating-linear-gradient(0deg,rgba(111,94,67,.05) 0,rgba(111,94,67,.05) 1px,transparent 1px,transparent 28px);min-height:620px;padding:40px 38px 30px;overflow:hidden;position:relative}.erh-page.is-left{border-radius:16px 0 0 16px}.erh-page.is-right{border-radius:0 16px 16px 0}.erh-page[hidden]{display:none}.erh-page-inner{height:100%;display:flex;flex-direction:column}.erh-page-number{font-family:Georgia,serif;font-size:24px;font-style:italic}.erh-page h2,.erh-feature-grid h2,.erh-contact h2{font-family:Georgia,serif;font-weight:500;font-style:italic;font-size:clamp(32px,3vw,50px);line-height:1.05;margin:6px 0 22px}.erh-page-copy{font-family:Georgia,serif;font-size:17px;line-height:1.72}.erh-page-copy h3{font-size:16px;letter-spacing:.06em;text-transform:uppercase;font-family:system-ui,sans-serif}.erh-page-copy blockquote{margin:20px 0;padding:14px 16px;background:rgba(204,183,145,.24);border-left:2px solid var(--erh-accent);font-style:italic}.erh-polaroid{width:min(68%,320px);margin:18px auto 16px;padding:10px 10px 28px;background:#f9f5ea;box-shadow:0 8px 17px rgba(54,41,26,.16);transform:rotate(-1.4deg);position:relative}.erh-polaroid img{width:100%;aspect-ratio:4/3;object-fit:cover}.erh-polaroid figcaption{text-align:center;font-family:Georgia,serif;font-style:italic;font-size:13px;padding-top:10px}.erh-tape{position:absolute;width:76px;height:24px;background:rgba(205,186,143,.55);top:-9px;left:50%;transform:translateX(-50%) rotate(3deg);z-index:2}.erh-page-footer{margin-top:auto;display:flex;justify-content:space-between;align-items:center;font-size:12px;padding-top:16px}.erh-continue{border:0;background:#dfcfad;padding:10px 14px;transform:rotate(-1deg);cursor:pointer;font-family:Georgia,serif;font-style:italic;font-size:15px}.erh-continue:hover{background:#c9b687}.erh-arrow{position:absolute;z-index:10;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;border:1px solid rgba(255,255,255,.7);background:rgba(34,25,18,.82);color:#fff;font-size:34px;line-height:1;cursor:pointer;box-shadow:0 6px 16px rgba(0,0,0,.2)}.erh-prev{left:-62px}.erh-next{right:78px}.erh-arrow:disabled{opacity:.28;cursor:default}.erh-tabs{position:absolute;right:0;top:20px;width:128px;display:flex;flex-direction:column;gap:5px;z-index:8}.erh-tabs button{display:grid;grid-template-columns:27px 1fr;align-items:center;text-align:left;border:0;border-radius:0 8px 8px 0;background:#e8dbc4;min-height:47px;padding:0 9px 0 0;box-shadow:0 2px 7px rgba(0,0,0,.12);font-size:11px;cursor:pointer}.erh-tabs button span{height:100%;display:flex;align-items:center;justify-content:center;background:#c6d0c0;margin-right:8px}.erh-tabs button.is-active{transform:translateX(7px);background:#fff3dc}.erh-progress{max-width:700px;height:5px;background:rgba(255,255,255,.22);margin:24px auto 0;border-radius:999px;overflow:hidden}.erh-progress span{display:block;height:100%;width:0;background:#e5d5b8;transition:width .3s}.erh-counter{text-align:center;color:#f5ead6;font-size:12px;margin:8px 0 0}.erh-feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;padding:80px max(5vw,40px);background:#f6efe2}.erh-feature-grid p{font-family:Georgia,serif;font-size:19px;max-width:600px}.erh-feature-grid>div:last-child{display:flex;gap:20px;align-items:flex-start}.erh-feature-grid img{width:48%;padding:10px 10px 28px;background:white;box-shadow:0 10px 20px rgba(60,45,28,.15)}.erh-feature-grid img:first-child{transform:rotate(-2deg)}.erh-feature-grid img:last-child{transform:translateY(35px) rotate(2deg)}.erh-contact{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;padding:80px max(8vw,40px);background:var(--erh-paper);position:relative}.erh-contact:before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent 0,transparent 27px,rgba(80,68,49,.04) 28px);pointer-events:none}.erh-section-no{font-family:Georgia,serif;font-style:italic;font-size:28px}.erh-contact p{font-family:Georgia,serif;font-size:18px;max-width:450px}.erh-contact form{display:grid;gap:16px;position:relative}.erh-contact label{display:grid;gap:6px;font-size:13px}.erh-contact input,.erh-contact textarea{width:100%;border:1px solid #c7b99f;background:#fffdf7;border-radius:4px;padding:12px 13px}.erh-contact button{justify-self:start;border:0;background:var(--erh-accent);color:white;padding:14px 22px;border-radius:4px}.erh-hp{position:absolute!important;left:-9999px!important}.erh-footer{min-height:110px;background:var(--erh-accent);color:white;display:flex;align-items:center;justify-content:space-between;padding:25px 5vw}.erh-footer-brand{display:flex;gap:22px;align-items:baseline}.erh-footer-brand strong{font-family:Georgia,serif;font-size:26px;font-style:italic}.erh-footer-brand span{font-size:12px}.erh-basic{max-width:900px;margin:80px auto;padding:0 25px}.erh-single{background:var(--erh-paper);padding:45px;box-shadow:var(--erh-shadow)}
@media(max-width:980px){.erh-nav{display:none}.erh-menu-toggle{display:block}.erh-header{height:64px}.erh-cover{min-height:560px}.erh-cover-overlay{grid-template-columns:.8fr 1.4fr}.erh-cover-phrase{font-size:27px}.erh-book-cover{grid-column:2;min-height:390px;padding-top:50px}.erh-reader-wrap{padding-right:105px}.erh-tabs{width:95px}.erh-tabs button{font-size:9px;grid-template-columns:23px 1fr}.erh-next{right:53px}.erh-page{padding:30px 26px}.erh-page-copy{font-size:15px}.erh-values div{font-size:16px}.erh-values strong{font-size:9px}.erh-feature-grid{gap:35px}}
@media(max-width:720px){.erh-brand{min-width:0}.erh-brand strong{font-size:20px}.erh-brand small{display:none}.erh-header{padding:0 16px;gap:12px}.erh-tools{margin-left:auto}.erh-cover{min-height:640px;background-position:38% center}.erh-cover-overlay{display:flex;flex-direction:column;justify-content:center;padding:45px 0 35px}.erh-cover-phrase{order:2;text-align:center;font-size:22px;max-width:280px}.erh-book-cover{width:min(84vw,390px);min-height:410px;padding:58px 30px}.erh-book-cover h1{font-size:40px}.erh-open{bottom:-12px}.erh-values{grid-template-columns:1fr 1fr}.erh-values div{padding:18px 8px}.erh-journal{padding:30px 15px 24px}.erh-reader-wrap{padding:0}.erh-reader{display:block;min-height:650px;background:transparent}.erh-reader:after{display:none}.erh-page{min-height:650px;border-radius:14px!important;padding:34px 28px}.erh-page-copy{font-size:16px}.erh-polaroid{width:78%}.erh-tabs{position:static;width:100%;display:flex;flex-direction:row;overflow:auto;margin-top:12px;padding-bottom:6px}.erh-tabs button{flex:0 0 auto;width:120px;border-radius:5px;min-height:40px}.erh-tabs button.is-active{transform:none;outline:2px solid #f2dfb8}.erh-arrow{top:auto;bottom:22px;width:44px;height:44px}.erh-prev{left:12px}.erh-next{right:12px}.erh-page-footer{padding:16px 48px 0}.erh-continue{font-size:14px}.erh-feature-grid,.erh-contact{grid-template-columns:1fr;padding:55px 24px;gap:35px}.erh-feature-grid>div:last-child{max-width:500px}.erh-footer-brand{display:block}.erh-footer-brand span{display:block}.erh-counter{margin-bottom:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}