:root{--navy:#082947;--navy2:#123f67;--gold:#d5a735;--paper:#f5f7f9;--line:#d8e1e8;--ink:#102d49;--muted:#60758a}
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82px);display:grid;grid-template-columns:310px minmax(0,1fr)}.ebook-sidebar{background:#fff;border-right:1px solid var(--line);overflow-y:auto;padding:22px 18px 30px;scrollbar-width:thin}.sidebar-head{display:flex;justify-content:space-between;align-items:center;padding:0 4px 12px}.sidebar-head small{color:#a26d00;font-weight:800}.sidebar-head h1{font-family:'Prompt';font-size:1.5rem;margin:4px 0 0}.close-side{display:none}.ebook-note{background:#f7f2e5;border:1px solid #ead9a9;border-radius:16px;padding:14px;color:#6d5a23;line-height:1.65;font-size:.9rem;margin-bottom:16px}.quick-toc{display:grid;gap:7px;margin-bottom:18px}.quick-toc button{border:0;background:#eef4f8;color:var(--navy);text-align:left;padding:11px 12px;border-radius:12px;font:600 .9rem 'Noto Sans Thai';cursor:pointer}.quick-toc button:hover{background:#dfeaf2}.thumb-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.thumb{border:2px solid transparent;background:#fff;border-radius:10px;padding:5px;cursor:pointer;box-shadow:0 3px 12px rgba(16,45,73,.09);transition:.18s}.thumb:hover{transform:translateY(-2px)}.thumb.active{border-color:var(--gold);background:#fff8e4}.thumb img{width:100%;display:block;border-radius:5px}.thumb span{display:block;text-align:center;font-size:.78rem;color:var(--muted);padding:5px 0 1px}.ebook-reader{min-width:0;display:grid;grid-template-rows:auto minmax(0,1fr) auto;background:linear-gradient(145deg,#dce5ec,#edf2f5)}.reader-toolbar{background:#fff;border-bottom:1px solid var(--line);padding:10px 18px;display:flex;justify-content:space-between;align-items:center;gap:12px;position:relative;z-index:5}.toolbar-group{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.tool-btn,.icon-btn{border:1px solid #cad7e1;background:#fff;color:var(--navy);border-radius:11px;height:39px;padding:0 13px;font:700 .9rem 'Noto Sans Thai';cursor:pointer}.icon-btn{width:39px;padding:0;font-size:1.15rem}.tool-btn:hover,.icon-btn:hover{background:#edf4f8;border-color:#9fb7c9}.page-jump{display:flex;align-items:center;gap:7px;color:var(--muted);font-weight:600}.page-jump input{width:58px;height:38px;border:1px solid #cad7e1;border-radius:10px;text-align:center;font:700 1rem 'Noto Sans Thai';color:var(--navy)}.zoom-label{min-width:52px;text-align:center;font-weight:700;color:var(--muted)}.reader-stage{overflow:auto;padding:28px;display:flex;align-items:flex-start;justify-content:center;scroll-behavior:smooth}.page-frame{position:relative;width:min(100%,820px);transform-origin:top center;transition:width .18s}.page-frame img{width:100%;height:auto;display:block;background:#fff;box-shadow:0 22px 55px rgba(17,46,72,.22);border-radius:3px;user-select:none;-webkit-user-drag:none}.loading{position:absolute;inset:0;display:grid;place-items:center;background:rgba(255,255,255,.86);z-index:2;font-weight:700;color:var(--muted)}.reader-footer{min-height:42px;background:#fff;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:8px 20px;color:var(--muted);font-size:.88rem}.screen-guard{display:none}@media print{body>*{display:none!important}body:after{content:'เอกสารนี้จัดทำสำหรับอ่านผ่านระบบเท่านั้น';display:block;padding:60px;font:700 24px 'Noto Sans Thai';color:#333}}@media(max-width:980px){.ebook-header{grid-template-columns:1fr auto;height:76px;padding:0 16px}.ebook-title{display:none}.ebook-shell{height:calc(100vh - 76px);grid-template-columns:1fr}.ebook-sidebar{position:fixed;left:0;top:76px;bottom:0;width:min(88vw,330px);z-index:30;transform:translateX(-105%);transition:.25s;box-shadow:20px 0 50px rgba(7,36,62,.18)}.ebook-sidebar.open{transform:translateX(0)}.close-side{display:block}.reader-toolbar{padding:8px 10px}.reader-stage{padding:16px 8px}.tool-btn{padding:0 9px;font-size:.82rem}.page-jump span:first-child{display:none}.reader-footer span:last-child{display:none}}@media(max-width:620px){.ebook-brand small{display:none}.back-link{font-size:.82rem;padding:8px}.reader-toolbar{align-items:flex-start}.toolbar-group:last-child .tool-btn{display:none}.reader-stage{padding:12px 4px}.reader-footer{justify-content:center}.reader-footer span:last-child{display:none}}
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