.qa-reader{--qa-quiet:color-mix(in srgb,var(--forum-muted) 78%,var(--forum-text));--qa-hairline:color-mix(in srgb,var(--forum-line) 70%,var(--forum-card));--qa-ornament:color-mix(in srgb,var(--forum-muted) 60%,var(--forum-line));--qa-band:#f4ede6;background:var(--forum-bg);min-height:100dvh;padding-bottom:64px;font-family:-apple-system,BlinkMacSystemFont,Helvetica Neue,PingFang SC,Microsoft YaHei,Noto Sans CJK SC,sans-serif}.dark .qa-reader{--qa-band:#131110}.qa-reader button{cursor:pointer}.qa-reader button:disabled{cursor:default;opacity:.45}.qa-reader :is(button,a,textarea):focus-visible{outline:2px solid var(--forum-accent);outline-offset:3px}.qa-icon-button{width:44px;height:44px;color:var(--forum-text2);flex-shrink:0;place-items:center;display:grid}.qa-topbar,.qa-actionbar,.qa-all-answers{display:none}.qa-hero{padding:72px 24px 0}.qa-hero-in{align-items:flex-start;gap:48px;max-width:720px;margin:auto;display:flex}.qa-hero-cover{flex-shrink:0;margin-top:6px}.qa-hero-cover>*{object-fit:cover;background:var(--forum-soft);border-radius:3px;width:96px;height:128px;display:block;box-shadow:0 1px 2px #34241824,0 12px 26px -10px #3424186b}.dark .qa-hero-cover>*{box-shadow:0 12px 26px -10px #000000a6}.qa-hero-text{flex:1;min-width:0}.qa-hero h1{font-family:var(--forum-serif);letter-spacing:.5px;color:var(--forum-text);overflow-wrap:anywhere;margin:0;font-size:36px;font-weight:900;line-height:1.4}.qa-hero h1 a{transition:color .3s;display:block}.qa-hero h1 a:hover{color:var(--forum-accent)}.qa-hero-detail{color:var(--qa-quiet);-webkit-line-clamp:3;-webkit-box-orient:vertical;margin:14px 0 0;font-size:15px;line-height:1.8;display:-webkit-box;overflow:hidden}.qa-hero-actions{flex-wrap:wrap;align-items:center;gap:4px;margin-top:26px;display:flex}.qa-write-button,.qa-directory-button,.qa-hero-icon{white-space:nowrap;border-radius:999px;justify-content:center;align-items:center;gap:6px;height:40px;padding:0 12px;font-size:14px;display:inline-flex}.qa-write-button{background:var(--forum-accent);color:#fff;margin-right:10px;padding:0 20px;font-weight:600}.qa-write-button:hover{filter:brightness(1.07)}.qa-directory-button,.qa-hero-icon{color:var(--forum-text2);transition:color .2s,background-color .2s}.qa-directory-button:hover,.qa-hero-icon:hover{color:var(--forum-text);background:color-mix(in srgb,var(--forum-text) 5%,transparent)}.qa-hero-icon{min-width:44px}.qa-font-button{font-family:var(--forum-serif);font-size:16px;font-weight:700}.qa-stream{max-width:768px;margin:auto;padding:64px 24px 0}.qa-answer{overflow-wrap:anywhere;scroll-margin-top:96px}@media (min-width:768px){.qa-answer+.qa-answer{margin-top:56px;padding-top:64px;position:relative}.qa-answer+.qa-answer:before{content:"";background:linear-gradient(to right,var(--qa-ornament) 64px,transparent 64px,transparent 100px,var(--qa-ornament) 100px);width:164px;height:1px;position:absolute;top:3px;left:calc(50% - 82px)}.qa-answer+.qa-answer:after{content:"";background:var(--qa-ornament);width:7px;height:7px;position:absolute;top:0;left:calc(50% - 3.5px);transform:rotate(45deg)}}.qa-author{align-items:center;gap:12px;display:flex}.qa-avatar.user-avatar{border:0;flex-shrink:0;width:32px;height:32px;font-size:14px}.qa-author strong{text-overflow:ellipsis;white-space:nowrap;min-width:0;color:var(--forum-text);font-size:15px;font-weight:600;overflow:hidden}.qa-author time{color:var(--qa-quiet);font-variant-numeric:tabular-nums;flex-shrink:0;margin-left:auto;font-size:13px}.qa-reader .qa-body{font-family:inherit;font-size:var(--qa-font-size,18px);color:var(--forum-text);letter-spacing:0;margin-top:22px;line-height:2}.qa-reader .qa-body p{margin:0 0 .9em}.qa-reader .qa-body p:not(:has(img,video,iframe)){text-indent:2em}.qa-reader .qa-body>:first-child{margin-top:0}.qa-reader .qa-body>:last-child{margin-bottom:0}.qa-reader .qa-body :is(img,video,iframe){max-width:100%;height:auto}.qa-reader .qa-body blockquote{border-color:var(--forum-line);margin:24px 0}.qa-reader .qa-body :is(ul,ol){margin:20px 0}.qa-reader .qa-body :is(h2,h3){margin:1.4em 0 .5em;font-size:1.1em;font-weight:900}.qa-reader .forum-source-credit{border-radius:5px;margin-top:18px;padding:12px 14px}.qa-inline-actions{color:var(--forum-text2);align-items:center;gap:2px;margin:22px -8px 0;display:flex}.qa-inline-actions button{border-radius:20px;justify-content:center;align-items:center;min-width:40px;height:40px;transition:color .2s,background-color .2s;display:inline-flex}.qa-inline-actions button:hover{color:var(--forum-text);background:color-mix(in srgb,var(--forum-text) 5%,transparent)}.qa-inline-actions .qa-share-button{margin-left:auto}.qa-vote,.qa-comment-button{padding:0 8px}.qa-count{font-variant-numeric:tabular-nums;align-self:flex-start;margin:7px 0 0 1px;font-size:12px;line-height:1}.qa-comment-button .qa-count{margin-left:-7px}.qa-reader [aria-pressed=true]{color:var(--forum-accent)}.qa-reader :is(.qa-vote,.qa-vote-down)[aria-pressed=true] path{fill:currentColor}.qa-stream-end{text-align:center;color:var(--forum-muted);margin-top:48px;padding:26px 16px 8px;font-size:13px}.qa-stream-end button{color:var(--forum-accent);min-height:44px;padding:4px 12px}.qa-next-answer{z-index:39;border:1px solid var(--forum-line);background:var(--forum-card);width:48px;height:48px;color:var(--forum-accent);border-radius:50%;place-items:center;transition:border-color .2s;display:grid;position:fixed;bottom:32px;right:max(24px,50% - 456px);box-shadow:0 6px 18px #3424181a}.qa-next-answer:hover{border-color:color-mix(in srgb,var(--forum-accent) 40%,var(--forum-line))}.dark .qa-next-answer{box-shadow:0 6px 18px #00000073}.qa-loading{text-align:center;color:var(--forum-muted);padding:80px 24px}.qa-loading button{color:var(--forum-accent);margin:16px auto;display:block}.qa-toast{z-index:80;background:var(--forum-text);color:var(--forum-card);border-radius:8px;max-width:90vw;padding:12px 18px;font-size:13px;position:fixed;bottom:32px;left:50%;transform:translate(-50%)}.qa-directory-question{margin:22px 0 16px;font-size:18px;font-weight:600;line-height:1.55}.qa-question-details{color:var(--forum-muted);margin-bottom:12px;font-size:14px;line-height:1.7}.qa-question-details summary{cursor:pointer;padding:8px 0}.qa-related-book{color:var(--forum-accent);padding:6px 0;font-size:13px;display:inline-block}.qa-directory-item{text-align:left;border-bottom:1px solid var(--forum-line);width:100%;padding:20px 0;display:block}.qa-directory-item strong{font-size:14px;font-weight:500}.qa-directory-item span{-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:8px 0;font-size:14px;line-height:1.8;display:-webkit-box;overflow:hidden}.qa-directory-item small{color:var(--forum-muted);font-size:12px}.qa-directory-item[aria-current=true] strong{color:var(--forum-accent)}.qa-load-more{min-height:44px;color:var(--forum-accent);margin:12px auto 0;font-size:14px;display:block}.qa-settings{padding:12px 24px 28px}.qa-settings p{margin:16px 0 12px;font-size:14px}.qa-settings strong{float:right;font-size:13px}.qa-settings>div{gap:8px;display:flex}.qa-settings button{background:var(--forum-soft);border:1px solid #0000;border-radius:6px;flex:1;min-height:44px}.qa-settings [aria-pressed=true]{border-color:var(--forum-accent)}.qa-settings-book{border-top:1px solid var(--forum-line);min-height:44px;color:var(--forum-text);justify-content:space-between;align-items:center;margin-top:22px;padding-top:16px;font-size:14px;display:flex}.qa-comment{padding:15px 0}.qa-comment-byline{justify-content:space-between;align-items:center;gap:12px;font-size:13px;display:flex}.qa-comment-byline time{color:var(--forum-muted);font-size:11px}.qa-comment-body{overflow-wrap:anywhere;margin-top:8px;font-size:15px;line-height:1.85}.qa-comment-actions{color:var(--forum-muted);gap:22px;margin-top:8px;font-size:12px;display:flex}.qa-comment-actions button{align-items:center;gap:5px;min-height:36px;display:flex}.qa-comment-children{border-left:2px solid var(--forum-line);padding-left:18px}.qa-comment-children:empty{display:none}.qa-comment-form{border-top:1px solid var(--forum-line);padding:12px 20px max(14px,env(safe-area-inset-bottom));flex-shrink:0}.qa-comment-form textarea{resize:vertical;background:var(--forum-soft);border-radius:6px;width:100%;height:76px;padding:12px;font-size:16px;display:block}.qa-comment-form>button{margin:10px 0 0 auto;display:flex}.qa-reply-to{color:var(--forum-muted);justify-content:space-between;gap:12px;margin:0 0 10px;font-size:12px;display:flex}.qa-primary{background:var(--forum-accent);color:var(--forum-card);border-radius:6px;justify-content:center;align-items:center;gap:8px;min-height:42px;padding:9px 18px;font-size:14px;display:inline-flex}.qa-write-form{flex-direction:column;min-height:0;padding:20px;display:flex}.qa-write-form>p{margin-bottom:18px;font-size:16px;font-weight:500;line-height:1.6}.qa-write-form textarea{resize:none;background:var(--forum-card);height:40dvh;min-height:180px;font-size:18px;line-height:1.75}.qa-write-form>div{justify-content:space-between;align-items:center;gap:12px;margin-top:18px;display:flex}.qa-write-form>div span{color:var(--forum-muted);font-size:12px}.qa-error{color:var(--forum-muted);padding:12px 0;font-size:13px}.qa-error button{color:var(--forum-accent);padding:6px}.qa-empty{text-align:center;color:var(--forum-muted);padding:28px 0;font-size:14px}.qa-share-fallback{padding:24px;font-size:14px}.qa-share-fallback input{background:var(--forum-soft);border-radius:6px;width:100%;margin-top:16px;padding:12px;font-size:16px}@media (max-width:767px){.qa-reader{background:var(--forum-card);padding-bottom:env(safe-area-inset-bottom)}.qa-topbar{z-index:40;background:var(--forum-card);border-bottom:1px solid #0000;align-items:center;height:52px;padding:0 4px 0 2px;transition:border-color .3s;display:flex;position:sticky;top:0}.qa-topbar[data-titled]{border-bottom-color:var(--forum-line)}.qa-topbar>.qa-icon-button:first-child{color:var(--forum-text)}.qa-topbar-gap{flex:1}.qa-topbar-title{text-align:left;white-space:nowrap;text-overflow:ellipsis;min-width:0;height:44px;color:var(--forum-text);flex:1;padding:0;font-size:16px;font-weight:700;overflow:hidden}.qa-hero{padding:2px 16px 0}.qa-hero-in{border-bottom:1px solid var(--qa-hairline);padding-bottom:14px;display:block}.qa-hero-cover,.qa-hero-detail,.qa-directory-button,.qa-hero-icon{display:none}.qa-hero h1{letter-spacing:0;font-family:inherit;font-size:20px;font-weight:700;line-height:1.5}.qa-hero-actions{flex-wrap:nowrap;gap:12px;margin-top:4px}.qa-all-answers{min-width:0;height:44px;color:var(--qa-quiet);white-space:nowrap;align-items:center;font-size:14px;display:inline-flex}.qa-write-button{height:44px;color:var(--forum-accent);background:0 0;gap:5px;margin:0 -2px 0 auto;padding:0 2px 0 8px}.qa-write-button:hover{filter:none}.qa-stream{padding:0}.qa-answer{padding:20px 16px 0;scroll-margin-top:60px}.qa-answer+.qa-answer{border-top:6px solid var(--qa-band);padding-top:20px}.qa-author{gap:10px}.qa-avatar.user-avatar{width:30px;height:30px;font-size:13px}.qa-author time{font-size:12.5px}.qa-reader .qa-body{margin-top:14px;line-height:1.85}.qa-reader .qa-body p:not(:has(img,video,iframe)){text-indent:0}.qa-inline-actions{display:none}.qa-stream-end{margin-top:0;padding:28px 16px 32px}.qa-actionbar{z-index:2;background:var(--forum-card);border-top:1px solid var(--forum-line);padding-bottom:env(safe-area-inset-bottom);margin:20px -16px 0;display:block;position:sticky;bottom:0}.qa-actionbar>div{align-items:center;height:60px;padding:0 4px 0 14px;display:flex}.qa-actionbar button{height:44px;color:var(--forum-text2);flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.qa-actionbar .qa-current-author{justify-content:flex-start;min-width:44px;margin-right:auto}.qa-current-author .qa-avatar.user-avatar{width:32px;height:32px;font-size:14px}.qa-actionbar .qa-vote{padding:0 6px 0 10px}.qa-actionbar .qa-vote-down{width:48px}.qa-actionbar .qa-comment-button{padding:0 8px 0 10px}.qa-actionbar .qa-count{margin-top:6px}.qa-actionbar [aria-pressed=true]{color:var(--forum-accent)}.qa-next-answer{right:16px;bottom:calc(76px + env(safe-area-inset-bottom));border:1px solid var(--forum-line);background:var(--forum-card);width:46px;height:46px;color:var(--forum-text2);box-shadow:0 6px 16px #3424181f}.dark .qa-next-answer{box-shadow:0 6px 16px #00000073}.qa-toast{bottom:calc(85px + env(safe-area-inset-bottom))}.qa-dialog-scroll,.qa-dialog-subtitle{padding-inline:16px}.qa-write-form{padding:16px 16px max(20px,env(safe-area-inset-bottom))}}@media (max-width:359px){.qa-hero h1{font-size:19px}}.book-review-sheet.forum-comment-sheet[open]:not([data-closing]),.book-review-sheet.forum-comment-sheet:not([data-closing])::backdrop{animation-timing-function:linear}.book-review-sheet.book-community.forum-comment-sheet{background:var(--forum-card);color:var(--forum-text)}.book-review-sheet.forum-comment-sheet::backdrop{background:#0006}.forum-comment-sheet .book-review-sheet-handle{background:var(--forum-line)}.forum-comment-sheet .book-review-sheet-header,.forum-comment-sheet .book-review-composer{border-color:var(--forum-line)}.forum-comment-sheet .book-review-composer{background:var(--forum-card)}.forum-comment-sheet .book-review-sheet-header small,.forum-comment-sheet .book-review-footer,.forum-comment-sheet .book-review-reply-action{color:var(--forum-muted)}.book-review-sheet.forum-comment-sheet .book-review-name,.book-review-sheet.forum-comment-sheet .book-review-content{color:var(--forum-text)}.forum-comment-sheet .book-review-compose-bar textarea{background:var(--forum-soft);border-color:var(--forum-line);color:var(--forum-text)}.forum-comment-sheet .book-review-compose-bar textarea::placeholder{color:var(--forum-muted)}.forum-comment-sheet .book-review-compose-bar textarea:focus{background:var(--forum-card);outline-color:var(--forum-accent)}.forum-comment-sheet .book-review-sheet-close:focus-visible{outline-color:var(--forum-accent)}.forum-comment-sheet .book-review-compose-send{background:var(--forum-accent);color:var(--forum-card)}.forum-comment-sheet .qa-comment{padding:0}.forum-comment-sheet .qa-comment-children{border-color:var(--forum-line);margin:8px 0 0 44px;padding-left:12px}.forum-comment-sheet .book-review-reply-action{align-items:center;gap:4px;display:flex}.forum-comment-sheet .book-review-content p{margin:0}.forum-comment-sheet .book-review-content{white-space:normal}