:root{--accent:#0a84ff;--glow1:#64d2ff;--glow2:#32d2e6;--glow3:#a8e6ff;--accent-ink:color-mix(in srgb, var(--accent) 72%, black);--accent-fill:color-mix(in srgb, var(--accent) 78%, black);--text-3:#6b707b;--warn:#9a5200;--danger:#c4000f;--bg:#eef6fb;--text:#1d1d1f;--text-2:#5f6470;--line:#00000014;--glass-bg:#ffffff8c;--glass-bg-strong:#ffffffc7;--glass-border:#ffffffbf;--glass-edge:#fffffff2;--glass-shadow:0 10px 40px -12px #1e285040, 0 2px 6px #1e28500f;--glass-blur:blur(24px) saturate(180%);--radius:22px;--radius-sm:14px;--capsule:999px;--ease:cubic-bezier(.2, .8, .2, 1);--spring:cubic-bezier(.34, 1.56, .64, 1);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans SC,system-ui,Segoe UI,Roboto,Noto Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0b0c10;--text:#f2f2f7;--text-2:#a1a1aa;--line:#ffffff1a;--accent-ink:color-mix(in srgb, var(--accent) 72%, white);--text-3:#9a9aa3;--warn:#ffb340;--danger:#ff6961;--glass-bg:#282a3280;--glass-bg-strong:#24262ed1;--glass-border:#ffffff24;--glass-edge:#ffffff47;--glass-shadow:0 12px 40px -10px #0009, 0 2px 6px #0000004d;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}:root[data-theme=dark]{--bg:#0b0c10;--text:#f2f2f7;--text-2:#a1a1aa;--line:#ffffff1a;--accent-ink:color-mix(in srgb, var(--accent) 72%, white);--text-3:#9a9aa3;--warn:#ffb340;--danger:#ff6961;--glass-bg:#282a3280;--glass-bg-strong:#24262ed1;--glass-border:#ffffff24;--glass-edge:#ffffff47;--glass-shadow:0 12px 40px -10px #0009, 0 2px 6px #0000004d;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{min-height:100vh;background:var(--bg);min-height:100dvh;color:var(--text);-webkit-font-smoothing:antialiased;transition:background .4s var(--ease), color .4s var(--ease);margin:0;line-height:1.6}a{color:var(--accent-ink);text-decoration:none}a:hover{text-underline-offset:3px;text-decoration:underline}img{max-width:100%}code{background:var(--line);border-radius:6px;padding:.1em .4em;font-size:.9em}h1,h2,h3{letter-spacing:-.01em;line-height:1.25}small{color:var(--text-2);font-weight:400}.muted{color:var(--text-2)}.small{font-size:.85rem}.center{text-align:center}.pad{padding:16px}[hidden]{display:none!important}.bg-glow{z-index:-1;pointer-events:none;position:fixed;top:0;bottom:0;left:0;right:0;overflow:hidden}.bg-glow i{filter:blur(80px);opacity:.55;border-radius:50%;width:55vmax;height:55vmax;animation:26s ease-in-out infinite alternate float;position:absolute}.bg-glow i:first-child{background:var(--glow1);top:-20vmax;left:-15vmax}.bg-glow i:nth-child(2){background:var(--glow2);opacity:.45;animation-delay:-8s;top:20vh;right:-25vmax}.bg-glow i:nth-child(3){background:var(--glow3);opacity:.5;animation-delay:-16s;bottom:-30vmax;left:20vw}:root[data-theme=dark] .bg-glow i{opacity:.28}@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .bg-glow i{opacity:.28}}@keyframes float{to{transform:translate(6vw,4vh)scale(1.12)}}@media (prefers-reduced-motion:reduce){.bg-glow i{animation:none}*{transition:none!important}}.glass{background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);border-radius:var(--radius);box-shadow:var(--glass-shadow), inset 0 1px 0 var(--glass-edge), inset 0 -1px 0 #ffffff0f;position:relative}.glass:before{content:"";border-radius:inherit;pointer-events:none;mix-blend-mode:soft-light;background:linear-gradient(#ffffff59 0%,#fff0 38%),radial-gradient(120% 60% at 0 0,#ffffff38,#0000 60%);position:absolute;top:0;bottom:0;left:0;right:0}@supports not ((-webkit-backdrop-filter:blur(1px)) or (backdrop-filter:blur(1px))){.glass{background:var(--glass-bg-strong)}}.container{width:min(1180px,100% - 32px);margin-inline-start:auto;margin-inline-end:auto}.demo-banner{text-align:center;border-radius:var(--capsule);width:min(1180px,100% - 32px);color:var(--text-2);margin:10px auto 0;padding:8px 16px;font-size:.85rem}.topbar{z-index:50;padding:max(12px, env(safe-area-inset-top)) 0 0;position:sticky;top:0}.topbar-inner{border-radius:var(--capsule);align-items:center;gap:12px;padding:8px 10px 8px 16px;display:flex}.brand{color:var(--text);letter-spacing:-.01em;align-items:center;gap:10px;font-size:1.1rem;font-weight:700;display:flex}.brand:hover{text-decoration:none}.brand img{border-radius:9px;width:30px;height:30px;box-shadow:0 2px 8px #00000026}.nav{align-items:center;gap:4px;margin-left:auto;display:flex}.nav a:not(.btn),.icon-btn{border-radius:var(--capsule);color:var(--text);transition:background .25s var(--ease), transform .25s var(--spring);padding:7px 14px;font-size:.95rem}.nav a:not(.btn):hover,.icon-btn:hover{background:var(--line);text-decoration:none}.nav a.active{background:var(--glass-bg-strong);box-shadow:inset 0 1px 0 var(--glass-edge), 0 2px 10px #00000014;font-weight:600}.icon-btn{cursor:pointer;background:0 0;border:0;font-size:1.05rem}.user-chip{place-items:center;width:36px;height:36px;font-weight:700;background:linear-gradient(135deg, var(--accent-fill), color-mix(in srgb, var(--glow2) 55%, black))!important;color:#fff!important;border-radius:50%!important;padding:0!important;display:grid!important}main{min-height:60vh;animation:rise .45s var(--ease);padding:28px 0 40px}@keyframes rise{0%{opacity:0;transform:translateY(8px)}}.footer{text-align:center;color:var(--text-2);padding:24px 0 40px;font-size:.85rem}.loading{place-items:center;min-height:40vh;display:grid}.spinner{border:3px solid var(--line);border-top-color:var(--accent);border-radius:50%;width:28px;height:28px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.btn{border-radius:var(--capsule);border:1px solid var(--glass-border);background:var(--glass-bg-strong);color:var(--text);font:inherit;cursor:pointer;white-space:nowrap;box-shadow:inset 0 1px 0 var(--glass-edge), 0 2px 8px #0000000f;-webkit-backdrop-filter:blur(12px)saturate(160%);backdrop-filter:blur(12px)saturate(160%);transition:transform .25s var(--spring), box-shadow .25s var(--ease), background .25s var(--ease), filter .2s;justify-content:center;align-items:center;gap:6px;padding:9px 18px;font-size:.95rem;font-weight:500;display:inline-flex}.btn:hover{box-shadow:inset 0 1px 0 var(--glass-edge), 0 6px 18px #0000001a;text-decoration:none;transform:translateY(-1px)}.btn:active{transform:scale(.96)}.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}.btn.primary{background:linear-gradient(180deg, color-mix(in srgb, var(--accent) 84%, black), var(--accent-fill));color:#fff;border-color:color-mix(in srgb, var(--accent) 60%, white);box-shadow:inset 0 1px 0 #ffffff73, 0 6px 20px -4px color-mix(in srgb, var(--accent) 55%, transparent)}.btn.danger{color:var(--danger)}.btn.danger:not(.ghost){color:#fff;background:linear-gradient(#d42a20,#b3000c);border-color:#e5574f}.btn.ghost{box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;border-color:#0000}.btn.ghost:hover{background:var(--line)}.btn.sm{padding:6px 14px;font-size:.88rem}.btn.lg{padding:12px 26px;font-size:1.02rem}.btn.block{width:100%;display:flex}.link{color:var(--accent-ink);cursor:pointer;font:inherit;background:0 0;border:0;padding:0}.input{width:100%;font:inherit;color:var(--text);background:var(--glass-bg-strong);border:1px solid var(--glass-border);border-radius:var(--radius-sm);transition:box-shadow .2s var(--ease), border-color .2s;outline:none;padding:11px 16px;box-shadow:inset 0 1px 3px #0000000f}.input:focus{border-color:color-mix(in srgb, var(--accent) 60%, transparent);box-shadow:0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent)}input.input.search,select.input{border-radius:var(--capsule)}textarea.input{resize:vertical}.select{width:auto;padding-right:32px}label{color:var(--text-2);font-size:.9rem;display:block}label .input{margin-top:6px}label.check,label.switch{color:var(--text);cursor:pointer;align-items:center;gap:8px;display:flex}label.check input,label.switch input{accent-color:var(--accent);width:18px;height:18px}.seg{border-radius:var(--capsule);background:var(--line);gap:2px;padding:3px;display:inline-flex}.seg-btn{color:var(--text);font:inherit;border-radius:var(--capsule);cursor:pointer;white-space:nowrap;transition:background .3s var(--ease), box-shadow .3s var(--ease), transform .3s var(--spring);background:0 0;border:0;padding:6px 14px;font-size:.88rem}.seg-btn:hover{text-decoration:none}.seg-btn.active{background:var(--glass-bg-strong);box-shadow:0 2px 8px #0000001f, inset 0 1px 0 var(--glass-edge);font-weight:600}.seg.big .seg-btn{padding:9px 18px;font-size:.95rem}.tabs{flex-wrap:wrap;margin-bottom:16px}.tag{border-radius:var(--capsule);background:color-mix(in srgb, var(--accent) 14%, transparent);color:var(--accent-ink);vertical-align:middle;margin-right:6px;padding:2px 9px;font-size:.75rem;font-weight:600;display:inline-block}.tag.gray{background:var(--line);color:var(--text-2)}.notice{border-radius:var(--radius-sm);background:color-mix(in srgb, var(--accent) 10%, var(--glass-bg));margin-bottom:16px;padding:12px 18px;font-size:.92rem}.warn{border-radius:var(--radius-sm);color:var(--text);background:#ff9f0a24;border:1px solid #ff9f0a73;margin:12px 0;padding:14px 16px;font-size:.9rem}.warn b{color:var(--warn)}:root[data-theme=dark] .warn b{color:#ffb340}.warn p{margin:6px 0 0}.lock-banner{border-radius:var(--capsule);flex-wrap:wrap;justify-content:center;align-items:center;gap:12px;margin-top:14px;padding:10px 16px;font-size:.92rem;display:flex}.hero{text-align:center;padding:48px 40px;overflow:hidden}.hero h1{letter-spacing:-.03em;background:linear-gradient(120deg, var(--text) 30%, var(--accent) 70%, var(--glow2));color:#0000;-webkit-background-clip:text;background-clip:text;margin:0;font-size:clamp(2.2rem,6vw,3.6rem);font-weight:800}.hero .subtitle{color:var(--text-2);margin:8px 0 0;font-size:1.15rem}.hero .intro{max-width:640px;color:var(--text);margin:18px auto 0}.hero-actions{flex-wrap:wrap;justify-content:center;gap:10px;margin-top:26px;display:flex}.section{margin-top:40px}.section-head{justify-content:space-between;align-items:baseline;margin-bottom:14px;display:flex}.section-head h2{margin:0;font-size:1.4rem}.page-head{justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px;display:flex}.page-head h1{margin:0;font-size:2rem}.empty{text-align:center;padding:48px 24px}.empty.small{color:var(--text-2);padding:28px 20px}.continue-list{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px;display:grid}.continue-card{color:var(--text);transition:transform .35s var(--spring), box-shadow 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14px}}.book-card{color:var(--text);display:block}.book-card:hover{text-decoration:none}.cover{aspect-ratio:2/3;transition:transform .45s var(--spring), box-shadow .3s var(--ease);background:var(--line);border-radius:12px;position:relative;overflow:hidden;box-shadow:0 12px 28px -10px #00000059,0 2px 6px #0000001f}.cover:after{content:"";pointer-events:none;border-radius:inherit;background:linear-gradient(90deg,#0000002e 0,#ffffff26 2.5%,#0000 6%),linear-gradient(160deg,#ffffff47,#0000 40%);position:absolute;top:0;bottom:0;left:0;right:0;box-shadow:inset 0 0 0 1px #ffffff2e}.book-card:hover .cover{transform:translateY(-6px)rotate(-.6deg);box-shadow:0 22px 40px -14px #00000073}.cover-img{object-fit:cover;width:100%;height:100%;display:block}.cover-ph{text-align:center;background:linear-gradient(150deg, hsl(var(--h) 72% 32%), hsl(calc(var(--h) + 14) 78% 22%));color:#fff;flex-direction:column;justify-content:center;gap:8px;width:100%;height:100%;padding:14px;display:flex}.cover-ph span{-webkit-line-clamp:4;text-shadow:0 1px 6px #00000040;-webkit-box-orient:vertical;font-size:1rem;font-weight:700;line-height:1.35;display:-webkit-box;overflow:hidden}.cover-ph small{color:#ffffffd9;font-size:.78rem}.cover.sm{border-radius:8px;flex:none;width:64px}.cover.sm .cover-ph span{font-size:.6rem}.cover.lg{flex:none;width:220px}.fmt-badge,.fav-badge{border-radius:var(--capsule);z-index:1;color:#1d1d1f;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffffb3;padding:3px 8px;font-size:.68rem;font-weight:700;position:absolute;top:8px}.fmt-badge{right:8px}.fav-badge{color:#ff375f;padding:4px 7px;font-size:.8rem;line-height:1;left:8px}.fav-btn.on{color:#ff375f;border-color:#ff375f73}.book-meta{padding:10px 2px 0}.book-title{-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:.95rem;font-weight:600;line-height:1.35;display:-webkit-box;overflow:hidden}.book-author{color:var(--text-2);white-space:nowrap;text-overflow:ellipsis;margin-top:2px;font-size:.82rem;overflow:hidden}.progress{border-radius:var(--capsule);background:var(--line);height:5px;margin-top:8px;overflow:hidden}.progress i{border-radius:inherit;background:linear-gradient(90deg, var(--accent), var(--glow1));height:100%;transition:width .5s var(--ease);display:block}.progress.lg{max-width:420px;height:8px}.pct{color:var(--text-2);margin-top:4px;font-size:.76rem}.filters{border-radius:28px;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:24px;padding:12px;display:flex}.filters .search{flex:240px}.back{color:var(--text-2);margin-bottom:14px;display:inline-block}.book-detail{gap:36px;padding:32px;display:flex}.detail-info{flex:1;min-width:0}.detail-info h1{margin:0 0 6px;font-size:2rem}.detail-meta{color:var(--text-2);flex-wrap:wrap;align-items:center;gap:10px;margin:14px 0;font-size:.86rem;display:flex}.desc{white-space:pre-line;color:var(--text)}.detail-actions{flex-wrap:wrap;align-items:center;gap:14px;margin-top:22px;display:flex}.danger-zone{border-top:1px solid var(--line);margin-top:28px;padding-top:16px}@media (max-width:680px){.book-detail{text-align:center;flex-direction:column;align-items:center;gap:20px;padding:24px 18px}.cover.lg{width:160px}.detail-actions,.detail-meta{justify-content:center}.progress.lg{margin-inline-start:auto;margin-inline-end:auto}}.two-col{grid-template-columns:1fr 1fr;gap:16px;display:grid}@media (max-width:760px){.two-col{grid-template-columns:1fr}}.panel{padding:20px 22px}.panel h2{margin:0 0 12px;font-size:1.15rem}.mark-list{gap:8px;margin:0;padding:0;list-style:none;display:grid}.mark-list li{border-radius:var(--radius-sm);background:var(--line);cursor:pointer;align-items:flex-start;gap:8px;padding:10px 12px;transition:background .2s;display:flex}.mark-list li:hover{background:color-mix(in srgb, var(--accent) 12%, transparent)}.mark-list a,.mark-main{color:var(--text);flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.mark-list a:hover{text-decoration:none}.mark-list p{margin:4px 0 0;font-size:.88rem}.mark-list .muted{font-size:.78rem}blockquote{border-left:3px solid var(--accent);color:var(--text-2);margin:0;padding:2px 0 2px 12px;font-size:.9rem}.x{color:var(--text-2);cursor:pointer;background:0 0;border:0;border-radius:50%;padding:2px 6px;font-size:.9rem}.x:hover{background:var(--line);color:#ff3b30}.stats{grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:8px;display:grid}.stat{text-align:center;padding:18px}.stat b{color:var(--accent-ink);font-size:1.8rem;line-height:1.1;display:block}.stat span{color:var(--text-2);font-size:.85rem}@media (max-width:520px){.stats{grid-template-columns:repeat(2,1fr)}}.article{max-width:820px;margin:0 auto;padding:40px clamp(20px,5vw,56px)}.article h1{margin:4px 0 8px;font-size:clamp(1.7rem,4vw,2.4rem)}.article-meta{color:var(--text-2);margin-bottom:26px;font-size:.88rem}.article-actions{border-top:1px solid var(--line);gap:10px;margin-top:36px;padding-top:20px;display:flex}.prose{overflow-wrap:anywhere;font-size:1.04rem;line-height:1.85}.prose h1,.prose h2,.prose h3{margin:1.6em 0 .6em}.prose p{margin:0 0 1em}.prose img{border-radius:var(--radius-sm)}.prose pre{background:var(--line);border-radius:var(--radius-sm);padding:14px 16px;overflow:auto}.prose pre code{background:0 0;padding:0}.prose blockquote{margin:1em 0;font-size:1em}.prose hr{background:var(--line);border:0;height:1px;margin:2em 0}.prose table{border-collapse:collapse}.prose td,.prose th{border:1px solid var(--line);padding:6px 10px}.editor{padding:24px}.editor-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;display:flex}.editor-head h2{margin:0}.editor-opts{gap:18px;display:flex}.title-input{margin-bottom:12px;font-size:1.3rem;font-weight:600}.toolbar{flex-wrap:wrap;align-items:center;gap:4px;margin-bottom:10px;display:flex}.tool{border-radius:var(--capsule);border:1px solid var(--glass-border);background:var(--glass-bg-strong);min-width:36px;height:34px;color:var(--text);cursor:pointer;transition:transform .2s var(--spring);font-weight:700}.tool:hover{transform:translateY(-1px)}.tool:active{transform:scale(.92)}.spacer{flex:1}.split{grid-template-columns:1fr 1fr;gap:14px;display:grid}.md-input{min-height:460px;font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:.95rem;line-height:1.7}.preview{border-radius:var(--radius-sm);background:var(--glass-bg-strong);border:1px solid var(--glass-border);min-height:460px;max-height:70vh;padding:12px 18px;overflow:auto}.editor-foot{justify-content:flex-end;gap:10px;margin-top:16px;display:flex}.mobile-only{display:none}@media (max-width:760px){.mobile-only{display:inline-flex}.split{grid-template-columns:1fr}.split[data-view=edit] .preview,.split[data-view=preview] .md-input{display:none}}.upload{padding:24px}.drop{border-radius:var(--radius);cursor:pointer;text-align:center;color:var(--text);border:2px dashed color-mix(in srgb, var(--accent) 40%, transparent);background:color-mix(in srgb, var(--accent) 5%, transparent);transition:all .3s var(--spring);flex-direction:column;align-items:center;gap:6px;padding:42px 20px;display:flex}.drop:hover,.drop.over{background:color-mix(in srgb, var(--accent) 12%, transparent);transform:scale(1.01)}.drop-icon{color:#fff;background:linear-gradient(180deg, color-mix(in srgb, var(--accent) 84%, black), var(--accent-fill));width:54px;height:54px;box-shadow:0 8px 20px -6px var(--accent);border-radius:50%;place-items:center;font-size:1.5rem;display:grid}.queue{gap:14px;margin-top:18px;display:grid}.q-item{border-radius:var(--radius-sm);background:var(--line);animation:rise .35s var(--ease);gap:16px;padding:14px;display:flex}.q-cover{aspect-ratio:2/3;background:var(--glass-bg-strong);width:84px;color:var(--text-2);border-radius:8px;flex:none;place-items:center;font-weight:700;display:grid;overflow:hidden}.q-cover img{object-fit:cover;width:100%;height:100%}.q-body{flex:1;gap:8px;min-width:0;display:grid}.q-foot{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:8px;display:flex}.q-foot .muted{margin-right:auto;font-size:.85rem}.q-prog{flex:1;min-width:80px;margin:0}.ok{color:#30d158;margin-right:auto;font-weight:600}.auth-wrap{place-items:center;padding:20px 0;display:grid}.auth{gap:14px;width:min(440px,100%);padding:32px;display:grid}.auth h1{text-align:center;margin:0 0 4px}.auth-links{text-align:center;color:var(--text-2);font-size:.9rem}.avatar{color:#fff;background:linear-gradient(135deg, var(--accent-fill), color-mix(in srgb, var(--glow2) 55%, black));width:76px;height:76px;box-shadow:0 10px 30px -8px var(--accent);border-radius:50%;place-items:center;margin:0 auto;font-size:2rem;font-weight:700;display:grid}.account-links{gap:8px;display:grid}.pw-change summary{cursor:pointer;color:var(--text-2);padding:6px 0}.pw-change form{gap:10px;padding-top:8px;display:grid}.modal-mask{z-index:1000;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#00000040;place-items:center;padding:20px;animation:.2s fade;display:grid;position:fixed;top:0;bottom:0;left:0;right:0}.modal{background:var(--glass-bg-strong);width:min(460px,100%);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);box-shadow:0 30px 80px -20px #00000073, inset 0 1px 0 var(--glass-edge);animation:pop .35s var(--spring);border-radius:26px;max-height:90vh;padding:24px;overflow:auto}.modal h3{margin:0 0 12px}.modal-body{color:var(--text);margin-bottom:12px;font-size:.95rem}.modal-body p{margin:0 0 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