:root{--brand:#ff6900;--accent:#b74700;--paper:#faf8f5;--line:#e9e1d9;--muted:#776b62;--ink:#30251e}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif}button,input,select,textarea{font:inherit}button,a,input,select,textarea{outline-offset:4px}button{cursor:pointer;border:0}a{color:inherit;text-decoration:none}button:disabled{opacity:.45;cursor:not-allowed}button,a{touch-action:manipulation}header{height:88px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(5vw,24px);gap:24px}.brand{display:flex;align-items:center;gap:14px}.brand b{font-size:23px;letter-spacing:2px}.brand small{display:block;font-size:9px;letter-spacing:2px;color:var(--muted)}.mark{width:46px;height:46px;background:var(--brand);color:white;font-size:24px;font-weight:800;display:grid;place-items:center;border-radius:3px}.nav{display:flex;gap:28px;align-items:center;font-size:13px}.nav a:hover{color:#b74700}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);padding:10px 18px;background:white;color:var(--ink);border-radius:5px;font-size:13px;white-space:nowrap}.btn.primary{background:var(--brand);color:white;border-color:var(--brand)}.btn.light{background:transparent;color:white;border-color:#ffffff40}.btn.danger{color:#b94737}.btn:hover{filter:brightness(.95)}.hero{background:var(--brand);color:white;position:relative;overflow:hidden}.hero:after{content:"ZAX";position:absolute;right:0;bottom:-82px;font-size:330px;font-weight:800;letter-spacing:-24px;color:#ffffff04;line-height:1;pointer-events:none}.hero-inner{max-width:1280px;margin:auto;padding:65px 30px 57px;position:relative;z-index:1;display:flex;align-items:end;justify-content:space-between;gap:30px}.eyebrow{font-size:10px;letter-spacing:3px;font-weight:600;color:var(--accent);display:flex;align-items:center;gap:13px}.eyebrow:before{content:"";width:26px;height:1px;background:currentColor}h1{font-weight:500;font-size:43px;line-height:1.3;letter-spacing:2px;margin:20px 0 16px}.hero p{color:#c0d0c7;font-size:14px;line-height:1.9;margin:0}.hero-note{border-left:1px solid #ffffff25;padding-left:24px;font-size:12px;color:#c0d0c7;min-width:180px}.hero-note b{display:block;color:#fff;font-size:22px;font-weight:400;letter-spacing:3px;margin-bottom:8px}.container{max-width:1280px;margin:auto;padding:35px 30px 70px}.toolbar{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:28px}.tabs{display:flex;gap:25px;align-items:center}.tab{background:transparent;padding:10px 0;font-size:14px;color:var(--muted);border-bottom:2px solid transparent}.tab.active{border-color:var(--brand);color:var(--brand);font-weight:600}.count{font-size:10px;margin-left:7px;background:#ffeadb;padding:2px 6px;border-radius:3px}.search{background:white;border:1px solid var(--line);padding:10px 16px;width:265px;border-radius:4px;font-size:13px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.book-card{background:#fff;border:1px solid var(--line);border-radius:6px;overflow:hidden;transition:transform .25s,box-shadow .25s}.book-card:hover{transform:translateY(-4px);box-shadow:0 12px 35px #ff690010}.cover-stage{height:290px;position:relative;background:#f3ebe4;display:flex;align-items:center;justify-content:center;padding:24px;overflow:hidden}.cover-stage:before{content:"";position:absolute;width:250px;height:250px;border:1px solid #ff690008;border-radius:50%}.cover-stage img{position:relative;height:100%;max-width:92%;object-fit:contain;box-shadow:5px 10px 19px #482b1726;transition:transform .3s}.book-card:hover .cover-stage img{transform:rotate(-2deg)}.badge{position:absolute;left:16px;top:15px;background:#fff8f1ed;color:#8d3900;font-size:10px;padding:4px 8px;border-radius:2px;letter-spacing:1px}.book-info{padding:23px}.book-info h2{font-size:18px;font-weight:500;margin:8px 0}.label{font-size:10px;letter-spacing:1px;color:#796b60}.book-info p{font-size:12px;color:var(--muted);margin:8px 0 20px;min-height:20px}.card-bottom{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #eee7e0;padding-top:17px}.read-link{font-size:13px;font-weight:600;color:var(--brand)}.icon-btn{border:1px solid var(--line);border-radius:4px;width:33px;height:33px;background:white;display:grid;place-items:center}.icon-btn svg{width:16px;height:16px}.contact-band{margin-top:45px;display:flex;justify-content:space-between;align-items:center;padding:30px 35px;border:1px solid #f0d5bf;background:#fff0e4;border-radius:4px;gap:20px}.contact-band h3{font-size:17px;font-weight:500;margin:0 0 5px}.contact-band p{font-size:12px;color:var(--muted);margin:0}.contact-actions{display:flex;gap:12px}footer{padding:24px max(5vw,24px);border-top:1px solid var(--line);display:flex;justify-content:space-between;font-size:10px;letter-spacing:1px;color:var(--muted)}.empty{text-align:center;padding:70px 20px;color:var(--muted);border:1px dashed #dbcabd;grid-column:1/-1}.modal{position:fixed;inset:0;background:#24170ea8;z-index:100;display:flex;align-items:center;justify-content:center;padding:22px;backdrop-filter:blur(4px)}[hidden]{display:none!important}.dialog{background:white;width:420px;max-width:100%;max-height:90vh;overflow:auto;border-radius:9px;padding:30px;box-shadow:0 30px 100px #0003;position:relative}.dialog h2{margin:0 35px 10px 0;font-size:21px;font-weight:500}.dialog p{color:var(--muted);font-size:13px}.close{position:absolute;top:14px;right:16px;background:transparent;font-size:25px;color:var(--muted)}.qr-img{display:block;width:225px;height:225px;object-fit:contain;margin:20px auto}.copy-row{display:flex;gap:8px}.copy-row input{min-width:0;flex:1}.field{display:block;margin:18px 0}.field span{display:block;margin-bottom:7px;font-size:12px;color:#746052}.field input,.field select,.field textarea,.copy-row input{width:100%;border:1px solid #e5d9cf;border-radius:4px;background:#fffcf9;padding:11px 12px;color:var(--ink);font-size:13px}.field textarea{resize:vertical;min-height:75px}.hint{font-size:11px;color:var(--muted)}#toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);padding:12px 24px;background:#9e3e00;color:white;box-shadow:0 5px 20px #0002;border-radius:5px;z-index:200;font-size:13px;max-width:90vw}.loading{padding:100px;text-align:center}.admin-shell{display:grid;grid-template-columns:225px 1fr;min-height:100vh}.sidebar{background:var(--brand);padding:32px 22px;color:white;display:flex;flex-direction:column;gap:30px}.sidebar .mark{background:#fff;color:var(--brand);width:35px;height:35px;font-size:19px}.sidebar .brand b{font-size:19px}.sidebar .brand small{color:#b5cbbf}.side-links{display:flex;flex-direction:column;gap:8px}.side-links button,.side-links a{background:transparent;color:#bfd0c6;text-align:left;padding:13px 14px;border-radius:4px;font-size:13px}.side-links button.active{background:#ffffff15;color:white}.sidebar-bottom{margin-top:auto;font-size:11px;color:#9cb5a7}.admin-main{padding:40px;min-width:0}.admin-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:30px}.admin-top h1{font-size:26px;margin:0 0 5px;letter-spacing:0}.admin-top p{margin:0;color:var(--muted);font-size:12px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:30px}.stat{background:white;border:1px solid var(--line);padding:22px;border-radius:5px}.stat span{color:var(--muted);font-size:12px}.stat b{display:block;font-size:30px;font-weight:500;margin-top:5px}.table-wrap{background:white;border:1px solid var(--line);border-radius:6px;overflow:auto}table{border-collapse:collapse;width:100%;min-width:760px;font-size:12px}th{text-align:left;color:var(--muted);font-weight:400;background:#fcf9f5;padding:16px 20px;border-bottom:1px solid var(--line)}td{padding:18px 20px;border-bottom:1px solid #eee7e0}td .btn{padding:5px 9px;font-size:11px}.table-book{display:flex;align-items:center;gap:14px}.table-book img{width:42px;height:55px;object-fit:contain;background:#fff0e4}.table-book strong{font-size:13px;font-weight:500;display:block}.pill{padding:4px 8px;background:#ffead9;color:#9e3e00;border-radius:3px;font-size:10px}.pill.draft{background:#f3ede7;color:#796957}.pill.error{background:#fcece7;color:#a14e39}.actions{display:flex;flex-wrap:wrap;gap:6px;max-width:310px}.settings-panel{background:white;border:1px solid var(--line);max-width:750px;padding:30px;border-radius:6px}.login-screen{min-height:100vh;display:grid;place-items:center;background:var(--brand);padding:24px}.login-box{background:var(--paper);padding:45px;width:430px;max-width:100%;border-radius:6px}.login-box h1{font-size:25px;letter-spacing:0}.login-box .btn{width:100%;margin-top:10px}.upload-area{border:1px dashed #dbb89d;background:#fff7ef;border-radius:6px;padding:25px 18px;text-align:center}.upload-area input{max-width:100%;font-size:12px}.progress{width:100%;height:6px;accent-color:var(--brand);margin:15px 0}.error-text{font-size:12px;color:#b54c39;white-space:pre-wrap}.reader{height:100dvh;display:flex;flex-direction:column;background:#eee8e2}.reader-head{height:65px;min-height:65px;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 25px;gap:15px;border-bottom:1px solid #e3d8cf}.reader-title{min-width:0;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.reader-head .brand .mark{width:32px;height:32px;font-size:18px}.reader-actions{display:flex;gap:8px}.reader-actions .btn{font-size:11px;padding:7px 11px}.reader-body{flex:1;min-height:0;display:flex;position:relative}.thumbs{width:160px;overflow:auto;background:#faf2ea;border-right:1px solid #e3d5c9;padding:18px;flex-shrink:0}.thumbs button{display:block;background:transparent;padding:5px;border:2px solid transparent;margin-bottom:12px;width:100%;font-size:10px;color:#776455}.thumbs button.selected{border-color:var(--brand);background:#fff}.thumbs img{width:100%;display:block;min-height:40px;object-fit:contain;margin-bottom:5px}.stage{flex:1;min-width:0;overflow:auto;display:flex;align-items:center;justify-content:center;padding:28px 70px;position:relative;touch-action:pan-x pan-y}.pages{display:flex;align-items:center;justify-content:center;filter:drop-shadow(0 10px 20px #49301c2b);transition:opacity .15s;transform-origin:center;max-height:100%;max-width:100%}.pages img{object-fit:contain;max-height:calc(100dvh - 200px);max-width:100%;display:block;background:#fff}.pages.spread img{max-width:50%;box-shadow:inset 4px 0 6px #0002}.stage.zoomed{display:block}.stage.zoomed .pages{max-height:none;max-width:none;min-width:100%;width:max-content}.stage.zoomed .pages img{max-height:none;max-width:none;width:min(1600px,180vw)}.page-arrow{position:absolute;top:45%;border:1px solid #dfcbbb;background:#fff9f2e6;width:40px;height:52px;border-radius:5px;font-size:28px;color:var(--brand);z-index:2}.page-arrow.prev{left:15px}.page-arrow.next{right:15px}.reader-bar{height:68px;min-height:68px;background:#fff;border-top:1px solid #e3d5c9;display:flex;align-items:center;justify-content:center;gap:18px;padding:10px 20px}.reader-bar input[type=range]{width:180px;accent-color:var(--brand)}.page-input{width:44px;border:1px solid var(--line);border-radius:3px;padding:5px;text-align:center;font-size:12px}.reader-bar span{font-size:12px;color:var(--muted)}.reader-bar .btn{padding:7px 12px;font-size:12px}.video{width:100%;max-height:65vh}.reader-status{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);font-size:11px;background:#ffffffd9;padding:4px 12px;border-radius:4px;pointer-events:none}.login-error{font-size:12px;color:#b94737}.upload-note{font-size:11px;color:var(--muted);background:#fcf5ed;padding:12px;border-radius:4px}.draft-banner{background:#fff4d9;color:#8c6a23;font-size:11px;padding:4px 15px;text-align:center}
@media(min-width:1400px){.cover-stage{height:330px}}@media(max-width:1050px){.grid{grid-template-columns:repeat(2,1fr)}.hero-note{display:none}.admin-main{padding:25px}.admin-shell{grid-template-columns:190px 1fr}.sidebar{padding:25px 14px}.reader-title{max-width:40vw}}@media(max-width:650px){header{height:72px;padding:0 20px}.brand b{font-size:20px}.mark{width:38px;height:38px;font-size:21px}.nav{gap:12px}.nav .desktop{display:none}.hero-inner{padding:38px 22px}h1{font-size:32px}.hero p{font-size:12px}.container{padding:20px 18px 40px}.toolbar{flex-direction:column;align-items:stretch;gap:10px}.search{width:100%}.tabs{gap:22px}.grid{gap:15px}.cover-stage{height:205px;padding:18px 10px}.book-info{padding:14px}.book-info h2{font-size:14px}.book-info p{font-size:11px;min-height:35px;margin:6px 0 12px}.label{font-size:9px}.badge{font-size:9px;left:10px;top:10px}.read-link{font-size:11px}.card-bottom{padding-top:12px}.icon-btn{width:27px;height:27px}.contact-band{margin-top:25px;padding:22px;flex-direction:column;align-items:start}.contact-actions{width:100%}.contact-actions .btn{flex:1;font-size:11px;padding:9px}.contact-band h3{font-size:15px}footer{gap:15px;font-size:9px;flex-wrap:wrap;padding:20px}.hero:after{font-size:210px;bottom:-40px;right:15px}.admin-shell{display:block}.sidebar{padding:16px;flex-direction:row;align-items:center;gap:14px;flex-wrap:wrap}.sidebar .brand{margin-right:auto}.sidebar .brand small,.sidebar-bottom{display:none}.side-links{flex-direction:row;gap:4px}.side-links button,.side-links a{padding:7px;font-size:11px}.admin-main{padding:22px 16px}.admin-top h1{font-size:22px}.stats{gap:10px}.stat{padding:15px}.stat b{font-size:25px}.stat span{font-size:10px}.admin-top .btn{padding:9px 12px}.settings-panel{padding:20px}.login-box{padding:30px}.reader-head{padding:0 12px;height:60px;min-height:60px;gap:10px}.reader-head .brand{display:none}.reader-title{font-size:12px;max-width:45vw}.reader-actions{gap:5px}.reader-actions .btn{padding:6px 8px;font-size:10px}.thumbs{position:absolute;z-index:5;top:0;bottom:0;width:130px;box-shadow:10px 0 20px #0002}.stage{padding:14px 30px}.pages img{max-height:calc(100dvh - 165px)}.page-arrow{width:26px;height:42px;font-size:21px}.page-arrow.prev{left:2px}.page-arrow.next{right:2px}.reader-bar{gap:9px;padding:8px;height:62px;min-height:62px}.reader-bar input[type=range]{width:70px}.reader-bar .btn{padding:6px 8px;font-size:11px}.reader-bar .desktop{display:none}.dialog{padding:25px}.reader-status{bottom:5px;font-size:9px}.page-input{width:36px}}

/* Bottom thumbnail tray and playback controls */
.reader-body .thumbs{position:absolute;left:0;right:0;top:auto;bottom:0;width:auto;height:132px;display:flex;gap:12px;padding:10px 20px;border-right:0;border-top:1px solid #dfcbbc;z-index:4;overflow-x:auto;overflow-y:hidden;box-shadow:0 -4px 16px #ff690010;scroll-behavior:smooth}
.reader-body .thumbs button{flex:0 0 78px;width:78px;height:105px;padding:4px;margin:0;border-radius:4px}
.reader-body .thumbs img{height:76px;min-height:0;width:100%;object-fit:contain;margin-bottom:2px}
.show-thumbs .stage{margin-bottom:132px}
.show-thumbs .pages img{max-height:calc(100dvh - 332px)}
.reader-bar{height:auto;min-height:68px;flex-wrap:wrap;gap:10px}
.reader-bar [aria-pressed=true]{border-color:var(--brand)}
@media(max-width:650px){.reader-bar{min-height:62px;gap:7px;padding:9px 7px}.reader-bar input[type=range]{display:none}.reader-bar .btn{padding:6px 8px}.reader-body .thumbs{height:114px;padding:7px 12px;gap:8px;box-shadow:0 -4px 16px #ff690010}.reader-body .thumbs button{flex-basis:66px;width:66px;height:94px}.reader-body .thumbs img{height:65px}.show-thumbs .stage{margin-bottom:114px}.show-thumbs .pages img{max-height:calc(100dvh - 279px)}}
/* A page pivots around its binding, with a moving fold shadow. */
.stage{perspective:1800px;isolation:isolate}
.turn-leaf{position:absolute;z-index:3;pointer-events:none;transform-style:preserve-3d;backface-visibility:visible;box-shadow:0 8px 22px #3c251530;background:#fff;overflow:hidden}
.turn-leaf img{width:100%;height:100%;max-width:none;max-height:none;display:block;object-fit:contain;backface-visibility:visible}
.turn-forward{transform-origin:left center;animation:book-forward .72s cubic-bezier(.32,.02,.26,1) both}
.turn-backward{transform-origin:right center;animation:book-backward .72s cubic-bezier(.32,.02,.26,1) both}
.turn-shade{position:absolute;inset:0;background:linear-gradient(90deg,#00000038,transparent 25%,#ffffff20 65%,#00000015);animation:fold-shadow .72s ease-in-out both}
.turn-backward .turn-shade{background:linear-gradient(270deg,#00000038,transparent 25%,#ffffff20 65%,#00000015)}
@keyframes book-forward{0%{transform:rotateY(0deg);opacity:1}49%{opacity:1}75%{opacity:.85}100%{transform:rotateY(-165deg);opacity:0}}
@keyframes book-backward{0%{transform:rotateY(0deg);opacity:1}49%{opacity:1}75%{opacity:.85}100%{transform:rotateY(165deg);opacity:0}}
@keyframes fold-shadow{0%,100%{opacity:0}45%,65%{opacity:1}}
@media(prefers-reduced-motion:reduce){.turn-leaf{animation:none}.turn-shade{animation:none}}

/* ZAX brand orange: RGB(255, 105, 0). Dark text keeps orange surfaces legible. */
:root{--brand:#ff6900;--brand-ink:#963900;--on-brand:#261b13}
:focus-visible{outline:2px solid var(--brand-ink)}
.mark,.btn.primary{color:var(--on-brand);font-weight:600}
.hero{color:var(--on-brand)}
.hero .eyebrow{color:#482000}
.hero p,.hero-note{color:#482000}
.hero-note{border-left-color:#6b2c0040}
.hero-note b{color:var(--on-brand)}
.hero:after{color:#6125000d}
.tab.active{color:var(--brand-ink);border-color:var(--brand)}
.read-link{color:var(--brand-ink)}
.sidebar{color:var(--on-brand)}
.sidebar .brand small,.sidebar-bottom{color:#482000}
.side-links button,.side-links a{color:#3e210e}
.side-links button.active{background:#fff5e8;color:#722c00;font-weight:600}
.sidebar .mark{background:#fff7ee;color:var(--brand-ink)}
.login-screen{background:var(--brand)}
#toast{background:#963900;color:white}
.page-arrow{color:var(--brand-ink)}
.thumbs button.selected{background:#fff3e7;border-color:var(--brand)}
.stat b{color:var(--brand-ink)}
.icon-btn:hover,.btn:not(.primary):hover{background:#fff2e7;border-color:#f5b98f}
/* Official ZAX identity: preserve the supplied logo proportions and colors. */
.brand{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:3px;flex-shrink:0}
.brand-logo{display:block;width:145px;height:auto;object-fit:contain}
.brand-slogan{font-size:10px;line-height:1.4;letter-spacing:.3px;color:#6b3a19;white-space:nowrap}
.hero h1{font-size:44px;line-height:1.45;letter-spacing:1px}
.hero h1 span{display:block}
.sidebar .brand{background:#fffaf5;border-radius:6px;padding:13px 10px;align-items:center;gap:8px}
.sidebar .brand-logo{width:158px;max-width:100%}
.sidebar .brand-slogan{font-size:10px;color:#69391b;letter-spacing:0}
.login-box .brand{align-items:center;padding-bottom:16px;border-bottom:1px solid #eadfd5}
.login-box .brand-logo{width:220px;max-width:100%}
.login-box .brand-slogan{font-size:13px;letter-spacing:.5px;margin-top:6px}
.reader-head .brand{flex-direction:row;align-items:center;gap:12px}
.reader-head .brand-logo{width:110px}
.reader-head .brand-slogan{display:none}
@media(max-width:1050px){.sidebar .brand-logo{width:140px}.sidebar .brand-slogan{font-size:9px}}
@media(max-width:650px){header .brand-logo{width:115px}header .brand-slogan{font-size:8px;letter-spacing:0}header .brand{gap:2px}.hero h1{font-size:33px;line-height:1.5}.sidebar .brand{padding:8px 10px}.sidebar .brand-logo{width:115px}.sidebar .brand-slogan{display:none}.login-box .brand-logo{width:200px}.login-box .brand-slogan{font-size:11px}.reader-head .brand{display:flex}.reader-head .brand-logo{width:78px}.reader-title{flex:1;max-width:none}.reader-head{gap:8px}}

/* White typography on orange brand surfaces. */
:root{--on-brand:#fff}
.mark,.btn.primary,.hero{color:#fff}
.hero .eyebrow,.hero p,.hero-note,.hero-note b{color:#fff}
.hero-note{border-left-color:#ffffff70}
.hero:after{color:#ffffff0d}
.sidebar{color:#fff}
.sidebar-bottom,.side-links button,.side-links a{color:#fff}
.side-links button.active{background:#fff5e8;color:#722c00}
.sidebar .brand-slogan{color:#69391b}