@import"https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;600;700&family=Noto+Serif+TC:wght@400;500;600;700;800&display=swap";:root{color-scheme:light;--accent: #d65078;--accent-hover: #bd3f66;--accent-soft: #f8dce5;--accent-ink: #a83258;--button-accent: #a83258;--button-accent-hover: #8f2748;--yellow: #efbd33;--yellow-soft: #fff3c9;--blue: #58b6df;--blue-ink: #27799e;--mint: #91bd87;--mint-ink: #3f713f;--lavender: #a99fc3;--lavender-ink: #6b5d91;--coral-ink: #ad4939;--ink: #201b18;--ink-soft: #514943;--paper: #f8f6ef;--surface: #fffefb;--surface-strong: #ffffff;--line: #ddd8d1;--shadow: 0 20px 60px rgba(70, 54, 44, .12);--shadow-soft: 0 12px 32px rgba(70, 54, 44, .08);--radius-sm: 10px;--radius-md: 14px;--radius-lg: 18px;--font-scale: 1;--topbar: 72px;--rail: 304px}:root[data-theme=dark]{color-scheme:dark;--ink: #f5f2ec;--ink-soft: #d2cdc6;--paper: #1d1e20;--surface: #25272a;--surface-strong: #2b2d30;--line: #414347;--accent-soft: #472934;--accent-ink: #f08aaa;--blue-ink: #82c9e8;--mint-ink: #a9d09f;--lavender-ink: #c2b6dc;--coral-ink: #f39a89;--yellow-soft: #3b351c;--shadow: 0 18px 55px rgba(0, 0, 0, .34)}:root[data-font-size=small]{--font-scale: .92}:root[data-font-size=medium]{--font-scale: 1}:root[data-font-size=large]{--font-scale: 1.16}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--paper)}body{margin:0;min-width:320px;min-height:100vh;color:var(--ink);background:var(--paper);font-family:PingFang HK,PingFang TC,Noto Sans TC,-apple-system,BlinkMacSystemFont,sans-serif;-webkit-font-smoothing:antialiased}:root[data-locale=zh-Hans] body{font-family:Noto Sans SC,-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif}:root[data-locale=th] body{font-family:Noto Sans Thai,Thonburi,Tahoma,sans-serif}:root[data-locale=ko] body{font-family:Noto Sans KR,Apple SD Gothic Neo,sans-serif}:root[data-locale=ja] body{font-family:Noto Sans JP,Hiragino Sans,Yu Gothic,sans-serif}:root[data-locale=en] body,:root[data-locale=de] body,:root[data-locale=fr] body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}:root[data-locale=en] :is(.cover-copy h1,.cover-subtitle,.cover-description,.cover-toc-preview h2,.book-part-title strong,.chapter h1,.chapter-body,.modal-header h2),:root[data-locale=de] :is(.cover-copy h1,.cover-subtitle,.cover-description,.cover-toc-preview h2,.book-part-title strong,.chapter h1,.chapter-body,.modal-header h2),:root[data-locale=fr] :is(.cover-copy h1,.cover-subtitle,.cover-description,.cover-toc-preview h2,.book-part-title strong,.chapter h1,.chapter-body,.modal-header h2){font-family:Georgia,Times New Roman,serif}:root[data-locale=th] :is(.cover-copy h1,.cover-subtitle,.cover-description,.cover-toc-preview h2,.book-part-title strong,.chapter h1,.chapter-body,.modal-header h2){font-family:"Noto Serif Thai",Thonburi,Tahoma,serif}:root[data-locale=ko] :is(.cover-copy h1,.cover-subtitle,.cover-description,.cover-toc-preview h2,.book-part-title strong,.chapter h1,.chapter-body,.modal-header h2){font-family:"Noto Serif KR",AppleMyungjo,serif}:root[data-locale=ja] :is(.cover-copy h1,.cover-subtitle,.cover-description,.cover-toc-preview h2,.book-part-title strong,.chapter h1,.chapter-body,.modal-header h2){font-family:"Noto Serif JP",Hiragino Mincho ProN,Yu Mincho,serif}button,input,select{font:inherit}button,a{color:inherit}.cover-site-footer{display:flex;justify-content:space-between;gap:18px;margin-top:36px;padding:24px 4px 8px;color:var(--ink-soft);border-top:1px solid var(--line);font-size:.86rem}.cover-site-footer a{text-decoration-color:color-mix(in srgb,var(--accent) 45%,transparent)}button:focus-visible,input:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 70%,white);outline-offset:3px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;top:10px;left:12px;z-index:100;transform:translateY(-180%);padding:10px 14px;color:#1f2024;background:var(--yellow);border-radius:4px}.skip-link:focus{transform:none}.reading-progress{position:fixed;z-index:90;top:0;left:0;height:4px;height:3px;background:linear-gradient(90deg,var(--accent),var(--yellow));transition:width .12s linear}.reading-progress:after{position:absolute;top:50%;right:-5px;width:10px;height:10px;background:var(--yellow);border:2px solid var(--surface);border-radius:50%;transform:translateY(-50%);box-shadow:0 2px 8px #46362c29;content:""}.topbar{position:fixed;z-index:70;top:0;left:0;right:0;height:var(--topbar);display:grid;grid-template-columns:auto minmax(80px,1fr) auto;align-items:center;gap:24px;padding:0 26px;background:color-mix(in srgb,var(--surface) 94%,transparent);border-bottom:1px solid var(--line);box-shadow:0 1px #46362c06,0 8px 22px #46362c09;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.brand{display:inline-flex;align-items:center;gap:12px;padding:4px;color:var(--ink);background:transparent;border:0;font-weight:700;font-size:1rem;letter-spacing:-.02em;cursor:pointer;transition:color .16s ease,transform .16s ease}.brand:hover{color:var(--accent)}.brand:active{transform:translateY(1px)}.brand-mark{display:grid;place-items:center;width:38px;height:38px;color:var(--accent);background:var(--surface-strong);border:1px solid color-mix(in srgb,var(--accent) 24%,var(--line));border-radius:12px}.book-mini-title{min-width:0;display:flex;align-items:baseline;gap:10px}.book-mini-title span{min-width:0;padding:2px 4px;color:var(--ink);background:var(--surface);border-radius:6px;font-size:.76rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.top-actions{display:flex;align-items:center;gap:4px}.toolbar-button,.icon-button{min-width:44px;min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:0 11px;color:var(--ink-soft);background:transparent;border:0;border-radius:10px;font-size:.82rem;font-weight:600;cursor:pointer;white-space:nowrap;transition:color .16s ease,background .16s ease,border-color .16s ease,transform .16s ease}.toolbar-button:hover,.toolbar-button.is-active,.icon-button:hover{color:var(--accent);background:color-mix(in srgb,var(--accent-soft) 60%,transparent)}.toolbar-button:active,.icon-button:active,.primary-button:active,.secondary-button:active{transform:translateY(1px)}.language-control{min-height:44px;display:inline-flex;align-items:center;gap:6px;padding:0 10px;background:color-mix(in srgb,var(--accent-soft) 38%,transparent);border:1px solid color-mix(in srgb,var(--accent) 38%,var(--line));border-radius:10px;transition:color .16s ease,background .16s ease,border-color .16s ease,box-shadow .16s ease}.language-control:hover{color:var(--accent);background:color-mix(in srgb,var(--accent-soft) 60%,transparent)}.language-control:focus-within{color:var(--accent);background:var(--accent-soft);border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 18%,transparent)}.language-control select,.speech-panel select{min-height:42px;max-width:165px;padding:0 26px 0 2px;color:var(--ink);background:transparent;border:0;border-radius:10px;font-size:.8rem;font-weight:600;outline:none}.language-control select:disabled{opacity:.58;cursor:wait}.action-toast{position:fixed;z-index:95;top:calc(var(--topbar) + 14px);right:22px;display:inline-flex;align-items:center;gap:9px;min-height:40px;max-width:min(360px,calc(100vw - 32px));padding:0 14px;color:var(--ink);background:color-mix(in srgb,var(--surface-strong) 94%,transparent);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:12px;box-shadow:0 14px 34px #46362c24;font-size:.76rem;font-weight:650;animation:toast-in .18s ease-out both;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.action-toast.is-loading{border-left-color:var(--blue)}.action-toast.is-error{border-left-color:#c65d55}.action-toast.is-neutral{border-left-color:var(--ink-soft)}.status-spinner{width:13px;height:13px;flex:0 0 auto;border:2px solid color-mix(in srgb,var(--blue) 25%,transparent);border-top-color:var(--blue);border-radius:50%;animation:status-spin .7s linear infinite}@keyframes toast-in{0%{opacity:0;transform:translateY(-7px)}to{opacity:1;transform:translateY(0)}}@keyframes status-spin{to{transform:rotate(360deg)}}.standalone-main{min-height:100vh;padding-top:var(--topbar)}.cover-view{width:min(1320px,calc(100% - 64px));margin:0 auto;padding:96px 0 80px}.cover-hero{display:grid;grid-template-columns:minmax(248px,296px) minmax(0,1fr);align-items:center;column-gap:clamp(54px,7vw,104px);row-gap:58px;padding-bottom:42px}.cover-book{position:relative;margin:0;animation:cover-rise .42s ease-out both}.cover-book:before{content:"";position:absolute;z-index:-1;inset:12% -13% -8% 8%;border-radius:50%;background:#d650781a;filter:blur(36px)}.cover-book img{width:296px;height:419px;display:block;object-fit:cover;border:1px solid rgba(73,61,52,.14);border-radius:8px 14px 14px 8px;box-shadow:14px 20px 48px #3a2e252e,-5px 0 #5b433812;transition:transform .22s ease,box-shadow .22s ease}.cover-book:hover img{transform:translateY(-3px);box-shadow:16px 24px 54px #3a2e2533,-5px 0 #5b433812}.cover-copy{position:relative;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;min-width:0;padding-left:36px;border-left:3px solid var(--accent);animation:cover-rise .46s 70ms ease-out both}.cover-brand{margin:0 0 12px;color:var(--accent);font-size:.72rem;font-weight:750;letter-spacing:.16em;text-transform:uppercase}.cover-copy h1{max-width:720px;margin:0;font-family:PingFang HK,PingFang TC,Noto Sans TC,sans-serif;font-size:clamp(3.2rem,5vw,4.5rem);font-weight:800;line-height:1.08;letter-spacing:-.05em;text-wrap:balance}.cover-subtitle{margin:20px 0 0;color:#8d5528;font-size:clamp(1.2rem,2vw,1.85rem);font-weight:760}.cover-author{margin:12px 0 0;font-size:1rem;font-weight:600;letter-spacing:.03em}.cover-actions{display:flex;gap:12px;margin-top:28px}.cover-description{max-width:620px;margin:24px 0 0;color:var(--ink-soft);font-family:PingFang HK,PingFang TC,Noto Sans TC,sans-serif;font-size:1.06rem;font-weight:500;line-height:1.9}.cover-description{text-wrap:pretty}.primary-button,.secondary-button{min-height:50px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 20px;border-radius:var(--radius-sm);border:1px solid transparent;font-weight:700;cursor:pointer;transition:color .16s ease,background .16s ease,border-color .16s ease,box-shadow .16s ease,transform .16s ease}.primary-button{color:#fff;background:var(--button-accent);box-shadow:0 12px 28px #b5345b2e}.primary-button:hover{background:var(--button-accent-hover)}.secondary-button{color:var(--ink);background:transparent;border-color:var(--line)}.secondary-button:hover{background:var(--surface);border-color:color-mix(in srgb,var(--accent) 32%,var(--line))}.secondary-button:disabled{opacity:.42;cursor:default}.cover-actions .primary-button{min-width:218px;justify-content:space-between;text-align:left}.cover-actions .primary-button span{display:grid;gap:2px}.cover-actions .primary-button small{font-size:.7rem;font-weight:500;opacity:.82}.cover-note{display:flex;align-items:center;gap:8px;margin:18px 0 0;color:var(--ink-soft);font-size:.8rem;line-height:1.8}.cover-note svg{color:var(--accent)}.cover-progress{grid-column:1 / -1;display:grid;grid-template-columns:auto minmax(220px,1fr) minmax(240px,auto);grid-template-areas:"number label stats" "number track stats" "note note stats";align-items:center;column-gap:28px;row-gap:8px;min-height:0;padding:24px 4px;border-block:1px solid var(--line);animation:cover-rise .46s .13s ease-out both}.cover-progress .progress-number{grid-area:number}.progress-number{display:flex;align-items:flex-start;color:var(--accent)}.progress-number strong{font-family:Georgia,serif;font-size:3.65rem;font-weight:500;line-height:1}.progress-number span{margin:5px 0 0 7px}.cover-progress>p{margin:0;color:var(--ink-soft);font-size:.86rem;line-height:1.65}.cover-progress>p:first-of-type{grid-area:label;align-self:end;font-weight:650}.cover-progress>p:last-of-type{grid-area:note;align-self:start;font-size:.78rem}.progress-track{height:5px;overflow:hidden;background:var(--line);border-radius:999px}.cover-progress .progress-track{grid-area:track;align-self:start}.progress-track span{height:100%;display:block;background:linear-gradient(90deg,var(--accent),var(--yellow));border-radius:inherit}.cover-progress dl{grid-area:stats;display:grid;grid-template-columns:repeat(3,minmax(60px,1fr));gap:18px;margin:0;padding:4px 0 4px 28px;border-left:1px solid var(--line)}.cover-progress dl div{display:grid;gap:6px}.cover-progress dt{color:var(--ink-soft);font-size:.72rem}.cover-progress dd{margin:0;font-size:1.06rem;font-weight:750}.cover-quick-actions{display:grid;grid-template-columns:1fr 1fr;gap:0;margin-top:16px;padding:10px 0;border-bottom:1px solid var(--line)}.cover-quick-actions button{min-height:72px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:16px;padding:12px 22px;color:var(--ink);text-align:left;background:transparent;border:0;border-radius:0;cursor:pointer;transition:color .16s ease,background .16s ease}.cover-quick-actions button+button{border-left:1px solid var(--line)}.cover-quick-actions button:hover{color:var(--accent-ink);background:color-mix(in srgb,var(--accent-soft) 32%,transparent)}.cover-quick-actions button>span:not(.quick-icon){display:grid;gap:3px}.cover-quick-actions small{color:var(--ink-soft)}.quick-icon{width:38px;height:38px;display:grid;place-items:center;color:var(--accent);background:var(--accent-soft);border-radius:50%}.access-preview{position:relative;overflow:hidden;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:20px;margin-top:28px;padding:22px 24px;background:var(--surface);border:1px solid color-mix(in srgb,var(--accent) 32%,var(--line));border-radius:18px}.access-preview:before{position:absolute;inset:0 auto 0 0;width:4px;background:var(--accent);content:""}.access-preview-icon{width:46px;height:46px;display:grid;place-items:center;color:var(--accent-ink);background:var(--accent-soft);border-radius:50%}.access-preview-copy{min-width:0}.access-preview-copy>small{color:var(--accent-ink);font-size:.7rem;font-weight:800;letter-spacing:.08em}.access-preview h2{margin:4px 0 0;font-size:1.18rem}.access-preview p{margin:6px 0 0;color:var(--ink-soft);font-size:.84rem;line-height:1.65}.access-ranges{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:12px}.access-ranges span{display:inline-flex;align-items:center;gap:6px;color:var(--ink);font-size:.76rem;font-weight:650}.access-ranges span:first-child svg{color:var(--mint-ink)}.access-ranges span:last-child svg{color:var(--accent-ink)}.access-preview>button{white-space:nowrap}@keyframes cover-rise{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.cover-toc-preview{padding:66px 0 20px}.cover-toc-preview>header{display:flex;align-items:end;justify-content:space-between;gap:24px;padding-bottom:30px;border-bottom:1px solid var(--line)}.cover-toc-preview h2{margin:0;font-family:PingFang HK,PingFang TC,Noto Sans TC,sans-serif;font-size:clamp(2.5rem,5vw,3.7rem);font-weight:800;letter-spacing:-.04em}.cover-toc-preview p{margin:8px 0 0;color:var(--ink-soft)}.cover-toc-preview header button{display:inline-flex;align-items:center;gap:4px;color:var(--accent-ink);background:transparent;border:0;font-weight:700;cursor:pointer}.cover-part-list{display:grid}.cover-part-list>button{--part-color: var(--blue-ink);min-height:116px;display:grid;grid-template-columns:72px 1fr auto;align-items:center;gap:28px;padding:18px 16px;text-align:left;background:transparent;border:0;border-bottom:1px solid var(--line);cursor:pointer}.cover-part-list>button:nth-child(2){--part-color: var(--mint-ink)}.cover-part-list>button:nth-child(3){--part-color: var(--lavender-ink)}.cover-part-list>button:nth-child(4){--part-color: var(--accent-ink)}.cover-part-list>button:hover{background:color-mix(in srgb,var(--surface) 66%,transparent)}.cover-part-number{color:var(--part-color);font-family:Georgia,serif;font-size:2.2rem}.cover-part-list button>span:nth-child(2){display:grid;grid-template-columns:auto 1fr;align-items:baseline;column-gap:14px}.cover-part-list small{color:var(--part-color);font-weight:700}.cover-part-list strong{font-family:PingFang HK,PingFang TC,Noto Sans TC,sans-serif;font-size:1.5rem;font-weight:750}.cover-part-list em{grid-column:1 / -1;margin-top:5px;color:var(--ink-soft);font-size:.78rem;font-style:normal}.cover-note a{color:inherit;text-underline-offset:.2em}.contents-view{width:min(1320px,calc(100% - 48px));margin:0 auto;padding:64px 0 120px}.contents-heading{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px;padding-bottom:28px;border-bottom:1px solid var(--line)}.contents-heading h1{margin:0;font-family:PingFang HK,PingFang TC,Noto Sans TC,sans-serif;font-size:clamp(34px,4vw,48px);font-weight:800;line-height:1.18;letter-spacing:-.03em}.contents-heading p{margin:10px 0 0;color:var(--ink-soft);font-size:15px;line-height:1.6}.contents-heading>button{min-height:44px;display:inline-flex;align-items:center;gap:8px;padding:0;color:var(--accent-ink);background:transparent;border:0;font-size:15px;font-weight:700;cursor:pointer}.contents-frontmatter,.contents-endmatter{width:100%;min-height:76px;display:grid;grid-template-columns:76px 1fr auto auto;align-items:center;gap:18px;padding:18px 22px;color:var(--ink);text-align:left;background:transparent;border:0;border-block:1px solid var(--line);cursor:pointer}.contents-frontmatter{margin-bottom:16px}.contents-frontmatter:hover,.contents-endmatter:hover{background:var(--surface)}.contents-frontmatter>span,.contents-endmatter>span{color:var(--accent-ink);font-size:14px;font-weight:800}.contents-frontmatter>strong,.contents-endmatter>strong{font-size:15px}.contents-frontmatter>small{color:var(--ink-soft);font-size:13px}.book-part-list,.book-chapter-list{margin:0;padding:0;list-style:none}.book-part-list>li{--part-color: var(--blue-ink);border-bottom:1px solid var(--line)}.book-part-list>li.part-2{--part-color: var(--mint-ink)}.book-part-list>li.part-3{--part-color: var(--lavender-ink)}.book-part-list>li.part-4{--part-color: var(--accent-ink)}.book-part-heading{width:100%;min-height:112px;display:grid;grid-template-columns:80px 1fr auto;align-items:center;gap:22px;padding:22px 16px;color:var(--ink);text-align:left;background:transparent;border:0;cursor:pointer;border-radius:var(--radius-md) var(--radius-md) 0 0;transition:background .16s ease}.book-part-heading:hover{background:color-mix(in srgb,var(--part-color) 7%,transparent)}.book-part-number{color:var(--part-color);font-family:Georgia,serif;font-size:34px}.book-part-title{display:grid;gap:5px}.book-part-title small{color:var(--part-color);font-size:13px;font-weight:800}.book-part-title strong{font-family:PingFang HK,PingFang TC,Noto Sans TC,sans-serif;font-size:24px;font-weight:750;line-height:1.35}.book-part-title em{color:var(--ink-soft);font-size:13px;font-style:normal}.book-chapter-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 32px;padding:0 14px 24px 116px}.book-chapter-list>li{min-width:0}.book-chapter-list>li.is-expanded{grid-column:1 / -1}.contents-book .chapter-toc-row{display:grid;grid-template-columns:1fr auto;align-items:center;border-bottom:1px solid color-mix(in srgb,var(--line) 70%,transparent)}.contents-book .chapter-toc-main{width:100%;min-height:54px;display:grid;grid-template-columns:30px 1fr auto;gap:10px;align-items:center;padding:9px 4px;text-align:left;background:transparent;border:0;cursor:pointer;transition:color .16s ease,background .16s ease}.contents-book .chapter-toc-main:hover{color:var(--part-color)}.contents-book .chapter-toc-main span{color:var(--part-color);font-family:Georgia,serif;font-size:17px}.contents-book .chapter-toc-main strong{font-size:14px;font-weight:650;line-height:1.5}.chapter-toc-main .chapter-toc-title{min-width:0;display:flex;align-items:center;justify-content:space-between;gap:8px;color:var(--ink);font-family:inherit;font-size:inherit}.chapter-toc-title strong{min-width:0}.chapter-toc-main .access-badge{flex:0 0 auto;display:inline-flex;align-items:center;gap:3px;padding:3px 6px;border-radius:999px;font-family:inherit;font-size:.58rem;font-style:normal;font-weight:750;line-height:1;white-space:nowrap}.chapter-toc-main .access-badge.is-free{color:var(--mint-ink);background:color-mix(in srgb,var(--mint) 17%,transparent)}.chapter-toc-main .access-badge.is-paid{color:var(--accent-ink);background:color-mix(in srgb,var(--accent-soft) 70%,transparent)}.contents-book .chapter-toc-main svg{opacity:.45}.contents-book.is-current .chapter-toc-main strong{color:var(--part-color)}.chapter-toc-toggle{min-width:58px;display:flex;align-items:center;justify-content:center;gap:4px;color:var(--ink);background:transparent;border:0;cursor:pointer}.chapter-toc-toggle:hover{color:var(--accent);background:var(--accent-soft)}.chapter-toc-toggle span{font-size:.68rem;font-variant-numeric:tabular-nums}.chapter-toc-toggle svg{transition:transform .18s ease}.chapter-toc-toggle.is-expanded svg{transform:rotate(90deg)}.contents-book .chapter-toc-toggle{min-width:52px;color:var(--part-color)}.contents-book .chapter-toc-toggle:hover{background:color-mix(in srgb,var(--part-color) 9%,transparent)}.contents-book .chapter-subtoc{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2px 28px;margin:4px 4px 18px 30px;padding:4px 0 8px 18px;list-style:none;border-left:2px solid var(--part-color)}.contents-book .chapter-subtoc li{border-bottom:1px solid color-mix(in srgb,var(--line) 62%,transparent)}.contents-book .chapter-subtoc button{width:100%;display:grid;grid-template-columns:34px 1fr;gap:10px;padding:9px 6px;color:var(--ink-soft);text-align:left;line-height:1.5;background:transparent;border:0;cursor:pointer}.contents-book .chapter-subtoc button:hover{color:var(--part-color);background:color-mix(in srgb,var(--part-color) 7%,transparent)}.contents-book .chapter-subtoc button span{color:var(--part-color);font-size:.65rem;font-variant-numeric:tabular-nums}.contents-endmatter{grid-template-columns:76px 1fr auto;margin-top:24px}.toc-rail{position:fixed;z-index:50;top:var(--topbar);bottom:0;left:0;width:var(--rail);display:flex;flex-direction:column;background:color-mix(in srgb,var(--surface) 96%,transparent);border-right:1px solid var(--line);box-shadow:6px 0 24px #46362c0b}.toc-rail-header{flex:0 0 78px;display:flex;align-items:center;justify-content:space-between;padding:0 22px;background:color-mix(in srgb,var(--surface) 98%,transparent);border-bottom:1px solid var(--line)}.toc-rail-header>div{display:grid;gap:4px}.toc-rail-header span{color:var(--accent-ink);font-size:.62rem;font-weight:750;letter-spacing:.16em}.toc-rail-header strong{font-family:"Noto Serif TC",serif}.toc-scroll{overflow-y:auto;overscroll-behavior:contain;padding:0 0 40px}.toc-group{--group-color: var(--coral-ink);border-bottom:1px solid var(--line)}.toc-group-1{--group-color: var(--blue-ink)}.toc-group-2{--group-color: var(--mint-ink)}.toc-group-3{--group-color: var(--lavender-ink)}.toc-group-4,.toc-group-5{--group-color: var(--accent-ink)}.toc-group-toggle{width:100%;min-height:74px;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:13px 17px;color:var(--ink);text-align:left;background:transparent;border:0;cursor:pointer}.toc-group-toggle:hover{background:color-mix(in srgb,var(--group-color) 7%,transparent)}.toc-group-toggle>span{min-width:0;display:grid;gap:5px}.toc-group-toggle small{color:var(--group-color);font-size:12px;font-weight:800}.toc-group-toggle strong{font-size:14px;font-weight:630;line-height:1.4}.toc-group-toggle svg{flex:0 0 auto;transition:transform .16s ease}.toc-group-toggle[aria-expanded=true] svg{transform:rotate(90deg)}.toc-group-items{padding:0 10px 12px}.toc-group-items>.chapter-toc-item+.chapter-toc-item{margin-top:2px}.toc-group .chapter-toc-item{--row-radius: 10px}.toc-group .chapter-toc-row{position:relative;display:grid;grid-template-columns:1fr auto;align-items:center;min-height:52px;border-radius:var(--row-radius)}.toc-group .chapter-toc-row:before{position:absolute;inset:10px auto 10px -10px;width:3px;border-radius:999px;background:var(--group-color);opacity:0;content:""}.toc-group .chapter-toc-main{width:100%;min-height:52px;display:grid;grid-template-columns:72px 1fr;align-items:center;gap:7px;padding:8px 10px;text-align:left;background:transparent;border:0;cursor:pointer}.toc-group .chapter-toc-row:hover{background:color-mix(in srgb,var(--group-color) 7%,transparent)}.toc-group .chapter-toc-item.is-current>.chapter-toc-row{background:color-mix(in srgb,var(--group-color) 15%,var(--surface-strong))}.toc-group .chapter-toc-item.is-current>.chapter-toc-row:before{opacity:1}.toc-group .chapter-toc-main span{color:var(--group-color);font-size:12px;font-weight:800}.toc-group .chapter-toc-item.is-current>.chapter-toc-row .chapter-toc-main span{color:var(--ink)}.toc-group .chapter-toc-main strong{font-size:13px;font-weight:650;line-height:1.4}.toc-group .chapter-toc-toggle{min-width:46px;padding:0 8px}.toc-group .chapter-subtoc{margin:0 0 8px 20px;padding:3px 12px 7px 10px;list-style:none;border-left:1px solid var(--accent)}.toc-group .chapter-subtoc button{width:100%;display:grid;grid-template-columns:26px 1fr;gap:5px;padding:7px 4px;color:var(--ink-soft);text-align:left;line-height:1.45;background:transparent;border:0;cursor:pointer}.toc-group .chapter-subtoc button:hover{color:var(--accent);background:var(--accent-soft)}.toc-group .chapter-subtoc button span{font-size:.59rem;font-variant-numeric:tabular-nums}.reader-main{min-height:100vh;margin-left:var(--rail);padding:calc(var(--topbar) + 126px) 64px 150px;background:var(--paper)}.reader-controlbar{position:fixed;z-index:42;top:var(--topbar);left:var(--rail);right:0;min-height:88px;display:flex;align-items:center;justify-content:space-between;gap:28px;padding:12px 24px;background:color-mix(in srgb,var(--surface) 94%,transparent);border-bottom:1px solid var(--line);box-shadow:0 8px 24px #46362c0b;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.reader-location{min-width:0;display:grid;gap:3px}.reader-location span{color:var(--blue-ink);font-size:.75rem;font-weight:800}.reader-location strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.84rem}.reader-location small{color:var(--ink-soft);font-size:.68rem}.reader-controls{display:flex;align-items:center;gap:2px;padding:4px;background:color-mix(in srgb,var(--surface-strong) 88%,var(--paper));border:1px solid var(--line);border-radius:16px;box-shadow:0 8px 24px #46362c12}.reader-utility-controls{display:flex;align-items:center;gap:3px;margin-left:3px;padding-left:6px;border-left:1px solid var(--line)}.reader-text-mode{min-height:44px;display:inline-flex;align-items:center;gap:7px;padding:0 11px;color:var(--ink-soft);font-size:.82rem;font-weight:650;white-space:nowrap}.reader-text-mode{color:var(--ink);background:color-mix(in srgb,var(--blue) 10%,transparent);border:0;border-radius:12px}.reader-text-mode svg{color:var(--blue)}.mode-dot{width:6px;height:6px;margin-left:1px;background:var(--blue);border-radius:50%;box-shadow:0 0 0 3px color-mix(in srgb,var(--blue) 16%,transparent)}.reader-font-control{height:44px;display:flex;align-items:center;background:transparent;border:0;border-radius:12px}.reader-font-control button{width:42px;height:42px;display:grid;place-items:center;color:var(--ink-soft);background:transparent;border:0;border-radius:9px;cursor:pointer}.reader-font-control button:hover{color:var(--accent-ink);background:var(--accent-soft)}.reader-font-control button:disabled{opacity:.35;cursor:not-allowed}.reader-font-control>span{width:44px;color:var(--ink-soft);font-size:.78rem;text-align:center}.chapter{width:min(760px,100%);margin:0 auto}.chapter-header{margin-bottom:56px}.chapter-part{margin:0 0 28px;color:var(--ink-soft);font-size:.72rem;font-weight:700;letter-spacing:.06em}.chapter-label{margin:0 0 15px;color:var(--accent-ink);font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.chapter-header h1{margin:0;font-family:PingFang HK,PingFang TC,Noto Sans TC,sans-serif;font-size:calc(clamp(2.2rem,4.2vw,4rem) * var(--font-scale));font-weight:800;line-height:1.23;letter-spacing:-.035em;text-wrap:balance}.chapter-header:after{content:"";display:block;width:84px;height:5px;margin-top:34px;background:linear-gradient(90deg,var(--accent),var(--yellow))}.chapter-image{width:min(100%,540px);aspect-ratio:1.5;display:block;margin-top:42px;object-fit:cover;border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-soft)}.source-notice{margin:36px 0 0;padding:18px 20px;background:color-mix(in srgb,var(--accent-soft) 62%,var(--surface));border-left:4px solid var(--accent)}.source-notice strong{font-size:.75rem}.source-notice p{margin:6px 0 0;color:var(--ink-soft);font-size:.86rem;line-height:1.65}.chapter-access-notice{position:relative;overflow:hidden;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;margin:-18px 0 42px;padding:15px 16px;background:var(--surface);border:1px solid color-mix(in srgb,var(--accent) 30%,var(--line));border-radius:16px}.chapter-access-notice:before{position:absolute;inset:0 auto 0 0;width:4px;background:var(--accent);content:""}.chapter-access-notice>span{width:38px;height:38px;display:grid;place-items:center;color:var(--accent-ink);background:var(--accent-soft);border-radius:50%}.chapter-access-notice div{display:grid;gap:2px}.chapter-access-notice small{color:var(--accent-ink);font-size:.66rem;font-weight:750}.chapter-access-notice strong{font-size:.84rem}.chapter-access-notice p{margin:0;color:var(--ink-soft);font-size:.72rem}.chapter-access-notice button{min-height:40px;display:inline-flex;align-items:center;gap:4px;padding:0 12px;color:var(--accent-ink);background:var(--accent-soft);border:0;border-radius:999px;font-size:.75rem;font-weight:700;cursor:pointer;transition:background .16s ease,transform .16s ease}.chapter-access-notice button:hover{background:color-mix(in srgb,var(--accent) 18%,var(--accent-soft))}.chapter-access-notice button:active{transform:scale(.97)}.book-diagram{margin:0 0 64px;padding:28px 0 32px;border-block:1px solid var(--line)}.diagram-header{margin-bottom:24px}.diagram-header small{color:var(--accent-ink);font-size:.66rem;font-weight:800;letter-spacing:.12em}.diagram-header h2{margin:6px 0 0;font-size:1.48rem;font-weight:760;line-height:1.35}.diagram-header p{margin:8px 0 0;color:var(--ink-soft);font-size:.82rem;line-height:1.65}.diagram-canvas{max-width:100%;overflow-x:auto;scrollbar-width:thin}.pyramid-diagram svg{width:100%;min-width:640px;display:block;font-family:PingFang HK,PingFang TC,Noto Sans TC,sans-serif}.pyramid-diagram polygon{fill:color-mix(in srgb,var(--surface) 86%,var(--paper));stroke:var(--line);stroke-width:1}.pyramid-diagram g.is-focal polygon{fill:var(--accent-soft);stroke:var(--accent);stroke-width:1.2}.pyramid-diagram g text{fill:var(--ink);font-size:16px;font-weight:650}.pyramid-diagram g.is-focal text{fill:var(--accent-ink);font-weight:760}.pyramid-diagram>.diagram-canvas line{stroke:var(--line);stroke-width:1}.pyramid-diagram .diagram-legend{fill:var(--ink-soft);font-size:12px;font-weight:600}.type-index-scroll{max-width:100%;overflow-x:auto;scrollbar-width:thin}.type-index-diagram ol{min-width:760px;display:grid;grid-template-columns:repeat(7,1fr);margin:0;padding:0;list-style:none;border-block:1px solid var(--line)}.type-index-diagram li+li{border-left:1px solid var(--line)}.type-index-diagram button{width:100%;min-height:112px;display:grid;align-content:center;justify-items:start;gap:4px;padding:16px 14px;color:var(--ink);text-align:left;background:transparent;border:0;cursor:pointer;transition:color .16s ease,background .16s ease}.type-index-diagram button:hover{color:var(--accent-ink);background:color-mix(in srgb,var(--accent-soft) 34%,transparent)}.type-index-diagram button>span{color:var(--ink-soft);font-family:Georgia,serif;font-size:.76rem}.type-index-diagram button strong{font-size:1rem}.type-index-diagram button small{color:var(--ink-soft);font-size:.66rem}.matrix-scroll{max-width:100%;overflow-x:auto;padding-bottom:8px;scrollbar-width:thin}.matrix-scroll:focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 55%,white);outline-offset:3px}.combination-matrix-diagram{width:min(960px,calc(100vw - var(--rail) - 96px));max-width:none;margin-left:50%;transform:translate(-50%)}.combination-matrix{min-width:920px;display:grid;grid-template-columns:176px repeat(7,1fr);gap:4px}.matrix-row{display:contents}.matrix-corner,.matrix-column-heading,.matrix-row-heading,.combination-matrix button{min-height:48px;display:grid;place-items:center;padding:8px;border:1px solid var(--line);border-radius:4px}.matrix-corner{align-content:center;justify-items:start;gap:2px;color:var(--ink-soft);background:var(--paper);font-size:.66rem}.matrix-corner strong{color:var(--ink);font-size:.72rem}.matrix-column-heading{color:var(--surface);background:var(--ink);border-color:var(--ink);font-size:.7rem;font-weight:650;text-align:center}.matrix-row-heading{justify-items:start;color:var(--ink);background:var(--surface);font-size:.72rem;font-weight:650}.combination-matrix button{color:var(--ink-soft);background:color-mix(in srgb,var(--surface) 62%,var(--paper));font-size:.7rem;font-weight:650;cursor:pointer;transition:color .15s ease,background .15s ease,border-color .15s ease}.combination-matrix button:hover,.combination-matrix button:focus-visible{color:var(--accent-ink);background:var(--accent-soft);border-color:var(--accent);outline:0}.chapter-body{color:var(--ink);font-family:PingFang HK,PingFang TC,Noto Sans TC,sans-serif;font-size:calc(1.18rem * var(--font-scale));font-weight:500;line-height:2.04;letter-spacing:.012em}.chapter-body p{margin:0 0 1.5em}.chapter-body [id]{scroll-margin-top:calc(var(--topbar) + 112px)}.chapter-body h2{margin:3.2em 0 1.1em;padding-top:.8em;font-family:Noto Sans TC,sans-serif;font-size:calc(1.38rem * var(--font-scale));font-weight:700;line-height:1.45;border-top:1px solid var(--line)}.chapter-body blockquote{margin:2.4em 0;padding:.35em 0 .35em 1.3em;color:var(--ink-soft);background:color-mix(in srgb,var(--accent-soft) 38%,transparent);border-left:5px solid var(--accent);border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-size:calc(1.16rem * var(--font-scale));font-weight:600}.chapter-body ul{margin:1.8em 0 2.2em;padding-left:1.5em}.chapter-body li{margin:.65em 0;padding-left:.35em}.chapter-body li::marker{color:var(--accent)}.chapter-footer{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:90px;padding-top:28px;border-top:1px solid var(--line)}.chapter-footer button{min-height:92px;display:flex;align-items:center;gap:14px;padding:16px;text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);transition:border-color .16s ease,box-shadow .16s ease,transform .16s ease;cursor:pointer}.chapter-footer button.next{justify-content:flex-end;text-align:right}.chapter-footer button:hover{border-color:color-mix(in srgb,var(--accent) 52%,var(--line));box-shadow:var(--shadow-soft);transform:translateY(-2px)}.chapter-footer button span{display:grid;gap:4px;font-size:.79rem;line-height:1.45}.chapter-footer button small{color:var(--ink-soft);font-size:.66rem}.reader-float-tools{position:fixed;z-index:45;right:24px;bottom:24px;display:flex;align-items:center;gap:4px;padding:4px 8px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow)}.chapter-count{padding:0 10px;color:var(--ink-soft);font-size:.72rem}.speech-panel{position:fixed;z-index:80;top:calc(var(--topbar) + 12px);right:18px;width:min(370px,calc(100vw - 28px));padding:18px;background:var(--paper);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}.speech-panel header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.speech-panel label:not(.switch-row){display:grid;gap:7px;color:var(--ink-soft);font-size:.76rem}.speech-panel select{width:100%;max-width:none}.speech-panel fieldset{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin:16px 0;padding:0;border:0}.speech-panel legend{margin-bottom:7px;color:var(--ink-soft);font-size:.76rem}.speech-panel fieldset button{min-height:40px;color:var(--ink);background:var(--surface);border:1px solid var(--line);cursor:pointer}.speech-panel fieldset button.is-selected{background:var(--accent-soft);border-color:var(--accent)}.switch-row{display:flex;align-items:center;gap:9px;font-size:.82rem}.switch-row input{width:20px;height:20px;accent-color:var(--accent)}.speech-actions{display:grid;grid-template-columns:1fr auto;gap:8px;margin-top:18px}.speech-panel>p{margin:14px 0 0;color:var(--ink-soft);font-size:.7rem;line-height:1.55}.modal-backdrop{position:fixed;z-index:100;inset:0;display:grid;place-items:center;padding:20px;background:#12131685;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.modal{width:min(520px,100%);max-height:min(780px,calc(100vh - 40px));overflow:hidden;display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}.modal-wide{width:min(780px,100%)}.modal-header{flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}.modal-header h2{margin:0;font-family:"Noto Serif TC",serif;font-size:1.2rem}.unlock-preview{overflow-y:auto;display:grid;justify-items:center;padding:28px 30px 24px;text-align:center}.unlock-symbol{width:56px;height:56px;display:grid;place-items:center;color:#fff;background:linear-gradient(145deg,var(--accent),var(--accent-hover));border-radius:50%;box-shadow:0 12px 28px #b5345b33}.unlock-preview>small{margin-top:15px;color:var(--accent-ink);font-size:.68rem;font-weight:800;letter-spacing:.08em}.unlock-preview h3{margin:5px 0 0;font-size:1.55rem}.unlock-preview>p{margin:10px 0 0;color:var(--ink-soft);font-size:.84rem;line-height:1.65}.unlock-preview ul{width:100%;display:grid;gap:10px;margin:22px 0;padding:18px 0;text-align:left;list-style:none;border-block:1px solid var(--line)}.unlock-preview li{display:flex;align-items:center;gap:9px;font-size:.82rem}.unlock-preview li svg{color:var(--mint-ink)}.unlock-preview .primary-button{width:100%}.unlock-preview .primary-button:disabled{cursor:not-allowed;opacity:.62}.unlock-preview .payment-safety-note{font-size:.7rem}.unlock-later{margin-top:10px;padding:8px 14px;color:var(--ink-soft);background:transparent;border:0;font-size:.76rem;cursor:pointer}.search-field{display:flex;align-items:center;gap:10px;margin:18px 20px 12px;padding:0 14px;background:var(--surface);border:1px solid var(--line);border-radius:12px}.search-field input{width:100%;min-height:50px;color:var(--ink);background:transparent;border:0;outline:0}.search-results,.bookmark-list{overflow-y:auto;padding:6px 20px 20px}.search-results button,.bookmark-list button{width:100%;display:grid;gap:5px;padding:15px 4px;text-align:left;background:transparent;border:0;border-bottom:1px solid var(--line);cursor:pointer}.search-results button:hover,.bookmark-list button:hover{background:var(--surface)}.search-results span,.bookmark-list span{color:var(--accent-ink);font-size:.68rem;font-weight:700}.search-results strong,.bookmark-list strong{font-family:"Noto Serif TC",serif;font-size:.92rem}.search-results p{margin:2px 0 0;color:var(--ink-soft);font-family:"Noto Serif TC",serif;font-size:.8rem;line-height:1.6}.empty-state{margin:0;padding:42px 16px;color:var(--ink-soft);text-align:center;line-height:1.7}.coming-soon{padding:38px 34px 42px;text-align:center}.puzzle-mini{width:92px;aspect-ratio:1.5;display:block;margin:0 auto 20px;object-fit:cover;border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 28px #46362c1f}.coming-soon h3{margin:0;font-family:"Noto Serif TC",serif;font-size:1.8rem}.coming-soon p{max-width:360px;margin:14px auto 26px;color:var(--ink-soft);line-height:1.7}.mobile-only{display:none}@media(max-width:1120px){.book-mini-title{display:none}.topbar{grid-template-columns:auto 1fr}.top-actions{justify-self:end}.top-actions .toolbar-button span{display:none}.cover-view{width:min(100% - 48px,960px);padding-top:90px}.cover-hero{grid-template-columns:240px 1fr;column-gap:48px;row-gap:46px}.cover-book img{width:240px;height:340px}.cover-progress{grid-template-columns:auto minmax(180px,1fr) minmax(220px,auto);column-gap:24px}.reader-main{padding-inline:42px}}@media(max-width:1120px){.reader-controlbar{min-height:142px;align-items:flex-start;flex-direction:column;gap:8px;padding:12px 22px}.reader-controls{width:100%;justify-content:flex-start}.reader-text-mode{display:none}.reader-main{padding-top:calc(var(--topbar) + 176px)}}@media(max-width:900px){.book-chapter-list{grid-template-columns:1fr}}@media(max-width:820px){:root{--topbar: 62px;--rail: min(340px, 87vw)}.mobile-only{display:flex}.topbar{gap:6px;padding:0 13px}.language-control{width:64px;padding:0 7px;gap:4px;overflow:hidden}.language-control svg{display:block;flex:0 0 auto;width:16px;height:16px}.language-control select{width:32px;max-width:32px;padding:0;text-align:center}.top-actions .toolbar-button span{display:none}.brand{gap:8px;font-size:.82rem}.brand-mark{width:31px;height:31px}.brand>span:last-child{max-width:132px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.cover-view{width:100%;padding:44px 15px 84px}.cover-hero{grid-template-columns:108px 1fr;align-items:start;gap:14px;padding-bottom:34px}.cover-book{margin-top:2px}.cover-book img{width:108px;height:153px;border-radius:3px 7px 7px 3px;box-shadow:8px 12px 26px #3a2e252e,-3px 0 #5b43380f}.cover-copy{padding-left:0;border-left:0}.cover-brand{display:none}.cover-copy h1{font-size:clamp(1.82rem,8vw,2.1rem);line-height:1.16;letter-spacing:-.05em}.cover-subtitle{margin-top:6px;font-size:1rem}.cover-author{margin-top:4px;font-size:.78rem}.cover-description{grid-column:1 / -1;margin-top:22px;font-size:1rem;line-height:1.9}.cover-actions{width:100%;flex-direction:column}.cover-actions button{width:100%}.cover-note{margin-top:14px}.cover-progress{grid-template-columns:auto 1fr;grid-template-areas:"number label" "track track" "note note" "stats stats";column-gap:18px;padding:28px 4px 22px}.progress-number strong{font-size:3.5rem}.cover-progress dl{margin-top:12px;padding:18px 0 0;border-top:1px solid var(--line);border-left:0}.cover-quick-actions{grid-template-columns:1fr;padding-block:6px}.cover-quick-actions button{padding-inline:8px}.cover-quick-actions button+button{border-top:1px solid var(--line);border-left:0}.access-preview{grid-template-columns:auto 1fr;gap:13px;padding:18px 16px}.access-preview>button{grid-column:1 / -1;width:100%}.access-ranges{display:grid;gap:8px}.cover-toc-preview{padding-top:48px}.cover-toc-preview>header{align-items:flex-start;flex-direction:column}.cover-part-list>button{grid-template-columns:52px 1fr auto;gap:12px}.cover-part-list button>span:nth-child(2){grid-template-columns:1fr}.cover-part-list strong{font-size:1.2rem;line-height:1.45}.contents-view{width:min(100% - 28px,620px);padding-top:50px}.contents-heading{align-items:flex-start;flex-direction:column;gap:12px}.contents-frontmatter{grid-template-columns:54px 1fr auto;gap:11px;padding-inline:4px}.contents-frontmatter small{display:none}.book-part-heading{min-height:94px;grid-template-columns:50px 1fr auto;gap:12px;padding:16px 4px}.book-part-number{font-size:24px}.book-part-title strong{font-size:19px}.book-chapter-list{padding:0 4px 20px 62px}.contents-book .chapter-toc-main{grid-template-columns:24px 1fr auto}.contents-book .chapter-toc-main>svg{display:none}.contents-book .chapter-subtoc{grid-template-columns:1fr;margin-left:24px}.contents-endmatter{grid-template-columns:54px 1fr auto;padding-inline:4px}.toc-rail{z-index:80;top:0;transform:translate(-105%);transition:transform .22s ease;box-shadow:var(--shadow)}.toc-rail.is-open{transform:none}.rail-backdrop{position:fixed;z-index:79;inset:0;background:#00000061;border:0;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.reader-controlbar{left:0;min-height:112px;align-items:flex-start;flex-direction:column;gap:8px;padding:10px 16px}.reader-location strong{max-width:calc(100vw - 32px)}.reader-location span{display:none}.reader-controls{width:100%;justify-content:flex-start;overflow-x:auto;overflow-y:hidden;padding-bottom:2px;scrollbar-width:none;border-radius:14px}.reader-controls::-webkit-scrollbar{display:none}.reader-controls>*{flex:0 0 auto}.reader-font-control{height:40px}.reader-font-control button{width:36px;height:38px}.reader-font-control>span{width:36px}.reader-utility-controls{margin-left:2px;padding-left:6px}.reader-utility-controls .toolbar-button{min-width:36px;padding:0}.reader-utility-controls .toolbar-button span{display:none}.reader-controls .toolbar-button{min-height:40px;white-space:nowrap}.reader-main{margin-left:0;padding:calc(var(--topbar) + 150px) 22px 120px}.chapter-header{margin-bottom:42px}.chapter-part{margin-bottom:22px}.chapter-header h1{font-size:calc(clamp(2rem,10vw,3rem) * var(--font-scale))}.chapter-body{font-size:calc(1.1rem * var(--font-scale));font-weight:500;line-height:2}.chapter-access-notice{grid-template-columns:auto 1fr;margin-top:-12px}.chapter-access-notice>button{grid-column:1 / -1;justify-content:center;min-height:44px;margin-top:4px;border-radius:12px}.book-diagram{margin-bottom:46px;padding-block:24px}.diagram-header h2{font-size:1.28rem}.pyramid-diagram svg{min-width:620px}.type-index-diagram ol{min-width:720px}.combination-matrix{min-width:860px;grid-template-columns:156px repeat(7,1fr)}.combination-matrix-diagram{width:100%;max-width:100%;margin-left:0;transform:none}.chapter-footer{grid-template-columns:1fr}.chapter-footer button{min-height:78px}.reader-float-tools{display:none}.mobile-nav{position:fixed;z-index:60;left:0;right:0;bottom:0;min-height:calc(68px + env(safe-area-inset-bottom));align-items:stretch;justify-content:space-around;padding-bottom:env(safe-area-inset-bottom);background:color-mix(in srgb,var(--surface) 96%,transparent);border-top:1px solid var(--line);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.mobile-nav button{min-width:66px;min-height:58px;display:grid;place-items:center;align-content:center;gap:2px;color:var(--ink-soft);background:transparent;border:0;font-size:.62rem;cursor:pointer}.mobile-nav button:hover{color:var(--accent)}.speech-panel{top:calc(var(--topbar) + 8px);right:10px}}@media(max-width:520px){.cover-subtitle{line-height:1.55}.chapter-header h1{letter-spacing:-.025em}.reader-float-tools .chapter-count{display:none}.modal-backdrop{padding:10px;align-items:end}.modal{max-height:calc(100vh - 24px);border-radius:16px 16px 0 0}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}@media(max-width:360px){.brand>span:last-child{max-width:92px}.language-control{width:36px;padding:0}.language-control svg{display:none}.language-control select{width:36px;max-width:36px}}@media print{.topbar,.toc-rail,.reader-controlbar,.reader-float-tools,.mobile-nav,.speech-panel,.reading-progress{display:none!important}.reader-main{margin:0;padding:0}.chapter{width:100%}}