:root { --ink:#172033; --muted:#64748b; --paper:#f7f6f2; --white:#fff; --line:#e5e7eb; --brand:#274d7f; --brand-dark:#193a66; --accent:#dd7b3f; --danger:#b42318; --success:#087443; --shadow:0 16px 45px rgba(21,38,65,.1); }
body.theme-warm{--ink:#493c3d;--muted:#7c6d68;--paper:#fff8f2;--white:#fffdfb;--line:#f0ddd3;--brand:#9a665f;--brand-dark:#77473f;--accent:#d8875b;--shadow:0 16px 45px rgba(112,69,57,.12)}
body.theme-design{--ink:#202022;--muted:#686064;--paper:#f7f3ee;--white:#fff;--line:#ded4ca;--brand:#343034;--brand-dark:#131113;--accent:#eb5b2a;--shadow:0 16px 45px rgba(47,31,21,.12)}
body.theme-tech{--ink:#d8eaff;--muted:#94aecb;--paper:#07111f;--white:#0d1b2d;--line:#243b58;--brand:#1976d2;--brand-dark:#0b4f9b;--accent:#2ce5e5;--danger:#ff7171;--success:#43d79c;--shadow:0 18px 50px rgba(0,0,0,.38)}
*{box-sizing:border-box} body{margin:0;background:var(--paper);color:var(--ink);font-family:ui-sans-serif,system-ui,-apple-system,"Noto Sans TC","PingFang TC",sans-serif;line-height:1.55}.site-header{background:rgba(255,255,255,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10;backdrop-filter:blur(12px)}.nav-shell{max-width:1160px;margin:auto;min-height:70px;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{color:var(--ink);font-weight:800;text-decoration:none;letter-spacing:-.03em;font-size:1.1rem}.brand span{display:inline-grid;place-items:center;width:30px;height:30px;margin-right:8px;border-radius:9px;background:var(--brand);color:#fff}nav{display:flex;align-items:center;gap:20px}nav a,.nav-form button{color:#40516d;text-decoration:none;font-size:.94rem;font-weight:650;border:0;background:transparent;cursor:pointer}.nav-cta{padding:9px 14px;border-radius:8px;background:var(--brand);color:#fff}.nav-form{display:inline;margin:0}.site-main{min-height:calc(100vh - 170px)}.site-footer{padding:38px max(24px,calc((100vw - 1112px)/2));background:#1c2d46;color:#c7d2e4;display:flex;justify-content:space-between;gap:20px;font-size:.9rem}.site-footer p{margin:4px 0}.site-footer strong{color:#fff}.hero{background:linear-gradient(120deg,#1b385f,#315a8c);color:white;padding:76px max(24px,calc((100vw - 1112px)/2)) 84px;overflow:hidden}.hero-grid{max-width:1112px;margin:auto;display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:center}.eyebrow{font-size:.75rem;letter-spacing:.13em;font-weight:800;color:#9dbde9;margin:0 0 12px}.hero h1{font-size:clamp(2.35rem,5vw,4.25rem);line-height:1.05;letter-spacing:-.055em;margin:0 0 20px}.hero p{font-size:1.08rem;color:#dbe9fc;max-width:570px}.hero-actions{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}.button{display:inline-block;border:0;border-radius:8px;background:var(--brand);color:white;text-decoration:none;font-weight:750;padding:11px 18px;cursor:pointer;font-size:.96rem}.button:hover{background:var(--brand-dark)}.button.secondary{background:#fff;color:var(--brand)}.button.danger{background:var(--danger)}.hero-visual{position:relative;min-height:245px}.book-stack{position:absolute;width:190px;height:250px;border-radius:10px;background:linear-gradient(145deg,#f5cf9b,#d8783c);right:20%;top:3px;box-shadow:30px 25px 0 #24456f,60px 49px 0 #9dbde9;transform:rotate(4deg);padding:28px;color:#503016;font-family:Georgia,serif;font-size:1.6rem;font-weight:bold}.section{max-width:1112px;margin:0 auto;padding:60px 24px}.section-heading{display:flex;justify-content:space-between;align-items:end;margin-bottom:24px;gap:18px}.section-heading h2{font-size:1.75rem;letter-spacing:-.03em;margin:0}.section-heading p{margin:4px 0 0;color:var(--muted)}.text-link{color:var(--brand);font-weight:700;text-decoration:none}.category-pills{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:27px}.pill{display:inline-block;border:1px solid #ced8e5;border-radius:99px;padding:8px 14px;color:#38506e;background:#fff;text-decoration:none;font-size:.92rem}.pill.active,.pill:hover{background:#e9f1fb;border-color:#7594b9;color:#183e6b}.book-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.book-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:0 4px 16px rgba(36,52,79,.04);transition:transform .16s,box-shadow .16s}.book-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.cover{display:block;aspect-ratio:1/.72;background:#dce7f4;overflow:hidden}.cover img{width:100%;height:100%;object-fit:cover}.cover-placeholder{height:100%;display:grid;place-items:center;background:linear-gradient(130deg,#b7cce7,#edf4fc);font-family:Georgia,serif;font-size:1.5rem;letter-spacing:.12em;color:#3d608b}.book-card-body{padding:15px}.category-label{margin:0 0 4px;color:#5c718d;font-size:.78rem;font-weight:750}.book-card h3{margin:0;font-size:1.05rem;line-height:1.35}.book-card h3 a{color:var(--ink);text-decoration:none}.author{margin:7px 0 13px;color:var(--muted);font-size:.88rem}.book-meta{display:flex;justify-content:space-between;align-items:center;gap:8px;color:#66758b;font-size:.78rem}.book-meta strong{color:var(--accent);font-size:.92rem}.rank-badge{position:absolute;z-index:2;top:10px;left:10px;border-radius:8px;background:#1f3e68;color:white;padding:5px 8px;font-weight:800;font-size:.8rem}.empty{padding:48px;text-align:center;border:1px dashed #bac6d5;border-radius:12px;background:#fff;color:var(--muted)}.page-hero{max-width:1112px;margin:0 auto;padding:48px 24px 28px}.page-hero h1{margin:0;font-size:2.3rem;letter-spacing:-.045em}.page-hero p{color:var(--muted);max-width:650px}.catalog-layout{max-width:1112px;margin:0 auto;padding:0 24px 60px}.auth-shell{width:min(100% - 48px,500px);margin:58px auto}.form-card,.detail-card,.admin-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px;box-shadow:var(--shadow)}.form-card h1{margin:0 0 7px;font-size:1.8rem}.form-card>p{color:var(--muted);margin-top:0}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.form-grid .full{grid-column:1/-1}label{display:grid;gap:6px;font-weight:700;font-size:.9rem;color:#32445f}input,select,textarea{width:100%;border:1px solid #cbd5e1;border-radius:8px;background:#fff;padding:10px 11px;color:var(--ink);font:inherit}textarea{min-height:130px;resize:vertical}input:focus,select:focus,textarea:focus{outline:3px solid #c7d8ed;border-color:#5e85b5}.form-actions{margin-top:20px;display:flex;gap:11px;align-items:center;flex-wrap:wrap}.hint{font-size:.84rem;color:var(--muted)}.flash{max-width:1112px;margin:16px auto;padding:12px 16px;border-radius:8px;font-weight:650}.flash.error{background:#fef0ef;color:#9b1c1c}.flash.success{background:#eaf9f0;color:#056a3a}.detail-wrap{max-width:1112px;margin:0 auto;padding:56px 24px}.book-detail{display:grid;grid-template-columns:300px 1fr;gap:44px}.detail-cover{aspect-ratio:1/.72;border-radius:12px;overflow:hidden;background:#dce7f4;box-shadow:var(--shadow)}.detail-cover img{width:100%;height:100%;object-fit:cover}.detail-info .category-label{font-size:.9rem}.detail-info h1{font-size:clamp(2rem,5vw,3.4rem);letter-spacing:-.05em;line-height:1.1;margin:5px 0 12px}.detail-author{color:var(--muted);font-size:1.05rem}.detail-price{font-size:1.45rem;color:var(--accent);font-weight:850;margin:22px 0}.summary{white-space:pre-line;color:#40516d}.notice{border-radius:8px;padding:12px 14px;background:#eff5fc;color:#36577d}.notice.error{background:#fef0ef;color:#9b1c1c}.dashboard{max-width:1112px;margin:0 auto;padding:40px 24px 65px}.dashboard-header{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px}.dashboard h1{margin:0;font-size:2rem}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:20px 0}.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px}.stat p{margin:0;color:var(--muted);font-size:.84rem}.stat strong{display:block;font-size:2rem;margin-top:4px}.admin-nav{display:flex;gap:8px;flex-wrap:wrap;margin:22px 0}.admin-nav a{padding:8px 12px;border-radius:8px;text-decoration:none;color:#46617f;font-weight:700}.admin-nav a.active,.admin-nav a:hover{background:#e7effa;color:#1b4778}.data-table{width:100%;border-collapse:collapse;background:white;border:1px solid var(--line);border-radius:12px;overflow:hidden}.data-table th,.data-table td{text-align:left;padding:13px;border-bottom:1px solid var(--line);vertical-align:middle}.data-table th{font-size:.8rem;color:#52657d;background:#f7f9fc}.data-table td{font-size:.9rem}.data-table tr:last-child td{border:0}.inline-form{display:inline}.inline-form button{color:var(--danger);background:transparent;border:0;padding:0;font:inherit;cursor:pointer}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:22px}.install-body{background:#edf3fa}.installer{width:min(100% - 48px,720px);background:#fff;margin:52px auto;padding:38px;border-radius:15px;box-shadow:var(--shadow)}.installer h1{letter-spacing:-.04em;margin-top:0}.lead{font-size:1.06rem;color:#53657d}.checklist{padding:0;margin:28px 0;list-style:none;border:1px solid var(--line);border-radius:10px}.checklist li{padding:13px 15px;display:flex;justify-content:space-between;border-bottom:1px solid var(--line)}.checklist li:last-child{border:0}.ok{color:var(--success)}.bad{color:var(--danger)}.install-form{display:grid;gap:14px}.install-form h2{font-size:1.2rem;margin:20px 0 0;border-top:1px solid var(--line);padding-top:20px}.install-form h2:first-child{border:0;padding-top:0;margin-top:0}
body.theme-tech .site-header{background:rgba(7,17,31,.92)}body.theme-tech nav a,body.theme-tech .nav-form button,body.theme-tech label{color:#b7d7f8}body.theme-tech .site-footer{background:#020914;color:#8eaed0}body.theme-tech .hero{background:linear-gradient(120deg,#071d3a,#103b62)}body.theme-tech .form-card,body.theme-tech .admin-card,body.theme-tech .book-card,body.theme-tech .stat,body.theme-tech .data-table,body.theme-tech input,body.theme-tech select,body.theme-tech textarea{background:#0d1b2d;color:var(--ink)}body.theme-tech .data-table th{background:#10243c;color:#aecaec}body.theme-tech .book-card h3 a,body.theme-tech .summary{color:var(--ink)}body.theme-tech .pill{background:#0d1b2d;color:#c6e1ff;border-color:#31506f}body.theme-tech .pill.active,body.theme-tech .pill:hover{background:#163657;color:#a9ffff}.setting-preview{padding:18px;border:1px dashed var(--line);border-radius:10px;display:flex;justify-content:space-between;align-items:center;background:var(--paper)}
@media (max-width:850px){.book-grid{grid-template-columns:repeat(2,1fr)}.hero-grid,.book-detail{grid-template-columns:1fr}.hero-visual{display:none}.detail-cover{width:min(100%,300px)}.two-col{grid-template-columns:1fr}.site-footer{flex-direction:column}.nav-shell{align-items:flex-start;padding-top:15px;padding-bottom:15px}.nav-shell,nav{flex-wrap:wrap}.stat-grid{grid-template-columns:1fr 1fr}.data-table{display:block;overflow-x:auto}}@media(max-width:520px){.book-grid{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.form-grid .full{grid-column:auto}.stat-grid{grid-template-columns:1fr}.hero{padding-top:55px;padding-bottom:58px}.section{padding-top:42px}.nav-shell{padding-left:16px;padding-right:16px}nav{gap:12px}.site-header{position:static}}