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h2{margin:0 0 12px;font:400 19px Georgia,Songti SC,serif}.legal-section p{margin:10px 0;color:var(--muted);font-size:14.5px;line-height:1.9}.legal-section ul{margin:10px 0;padding-left:20px}.legal-section li{margin:8px 0;color:var(--muted);font-size:14.5px;line-height:1.85}.legal-section li::marker{color:var(--color-highlight)}.learning-bookmark{display:inline-flex;align-items:center;gap:6px;color:var(--muted)}.bookmark-ribbon{width:10px;height:13px;flex:none;color:var(--color-highlight)}.learning-arrow{white-space:nowrap;font-size:13px;color:var(--soft)}.learning-row:hover .learning-arrow,.learning-row:focus-visible .learning-arrow{color:var(--ink)}.bookmark-line{margin:14px 0 0;color:var(--soft);font-size:13px}.bookmark-line:before{content:"";display:inline-block;width:8px;height:11px;margin-right:7px;background:var(--color-highlight);clip-path:polygon(0 0,100% 0,100% 100%,50% 74%,0 100%)}.reader-fab-group{position:fixed;right:max(18px,env(safe-area-inset-right));bottom:max(22px,env(safe-area-inset-bottom));z-index:30;display:flex;flex-direction:column;gap:10px}.reader-fab{position:relative;width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--reader-border);background:var(--reader-surface);color:var(--reader-body);cursor:pointer;box-shadow:3px 3px #0a0f0c29;transition:transform var(--duration-fast) var(--ease-out),color var(--duration-fast) var(--ease-out)}.reader-fab:hover,.reader-fab:focus-visible{color:var(--reader-text);transform:translateY(-2px)}.reader-fab.active{color:var(--reader-accent);border-color:var(--reader-accent)}.reader-fab[aria-hidden=true]{opacity:0;transform:translateY(10px);pointer-events:none}.reader-fab-badge{position:absolute;top:-7px;right:-7px;min-width:18px;height:18px;padding:0 5px;display:grid;place-items:center;background:var(--coral);color:#20130f;font-size:11px;font-weight:700;line-height:1;border-radius:999px}.comments-backdrop{position:fixed;z-index:40;inset:0;display:flex;justify-content:flex-end}.comments-backdrop:before{content:"";position:fixed;z-index:-1;inset:0;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.comments-backdrop:after{content:"";position:fixed;z-index:-1;inset:0;background:#0c120f66;animation:backdrop-fade var(--duration-normal) var(--ease-out) both}.comments-backdrop.is-closing:after{animation:backdrop-fade var(--duration-normal) var(--ease-out) reverse both}.comments-sheet{width:min(430px,100%);height:100%;display:flex;flex-direction:column;background:var(--reader-canvas);color:var(--reader-text);border-left:1px solid var(--reader-border);animation:comments-slide-in var(--duration-slow) var(--ease-out) both}.comments-backdrop.is-closing .comments-sheet{animation:comments-slide-in var(--duration-normal) var(--ease-out) reverse both}@keyframes comments-slide-in{0%{transform:translate(48px);opacity:0}}@media(max-width:720px){.comments-backdrop{justify-content:center;align-items:flex-end}.comments-sheet{width:100%;height:min(82svh,640px);border-left:0;border-top:1px solid var(--reader-border);animation-name:comments-rise-in}.comments-backdrop.is-closing .comments-sheet{animation-name:comments-rise-in}}@keyframes comments-rise-in{0%{transform:translateY(56px);opacity:0}}.comments-heading{flex:none;display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:22px 22px 14px;border-bottom:1px solid var(--reader-border)}.comments-heading h2{margin:6px 0 0;font-size:20px}.comments-heading button{flex:none;width:32px;height:32px;display:grid;place-items:center;border:1px solid var(--reader-border);background:transparent;color:var(--reader-muted);font-size:17px;cursor:pointer}.comments-heading button:hover{color:var(--reader-text)}.comments-list{flex:1 1 auto;min-height:0;overflow-y:auto;padding:6px 22px 16px}.comments-status{padding:22px 0;color:var(--reader-muted);font-size:14px}.comment-item{display:flex;gap:12px;padding:16px 0;border-bottom:1px solid var(--reader-subtle)}.comment-item:last-child{border-bottom:0}.comment-avatar{flex:none;width:32px;height:32px;display:grid;place-items:center;background:var(--reader-subtle);border:1px solid var(--reader-border);color:var(--reader-accent);font-size:14px;font-weight:700;border-radius:999px}.comment-item.mine .comment-avatar{background:var(--reader-accent);border-color:var(--reader-accent);color:var(--reader-canvas)}.comment-main{flex:1 1 auto;min-width:0}.comment-main header{display:flex;align-items:baseline;gap:8px}.comment-main strong{font-size:13.5px;color:var(--reader-text)}.comment-main time{font-size:12px;color:var(--reader-muted)}.comment-main p{margin:6px 0 0;color:var(--reader-body);font-size:14.5px;line-height:1.65;overflow-wrap:anywhere;white-space:pre-wrap}.comment-delete{margin-left:auto;border:0;background:transparent;color:var(--reader-muted);font-size:12px;cursor:pointer;padding:2px 4px}.comment-delete:hover,.comment-delete:focus-visible{color:var(--coral)}.comment-delete.confirm{color:var(--coral);font-weight:600;text-decoration:underline}.comments-composer{flex:none;padding:14px 22px calc(18px + env(safe-area-inset-bottom));border-top:1px solid var(--reader-border);background:var(--reader-surface)}.comments-composer textarea{width:100%;min-height:84px;max-height:200px;padding:10px 12px;border:1px solid var(--reader-border);background:var(--reader-canvas);color:var(--reader-text);font:inherit;font-size:14.5px;line-height:1.6;resize:vertical}.comments-composer textarea:focus-visible{outline:2px solid var(--reader-accent);outline-offset:1px}.comments-composer-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:10px}.comment-count-hint{font-size:12px;color:var(--reader-muted)}.comments-login-hint p{margin:0 0 12px;color:var(--reader-muted);font-size:14px}.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}@media(prefers-reduced-motion:reduce){.comments-sheet,.comments-backdrop.is-closing .comments-sheet,.comments-backdrop:after,.comments-backdrop.is-closing:after,.reader-fab,.reader-fab[aria-hidden=true]{animation:none;transition:none}}