:root{--desk: #ece4d9;--paper: #f4f0ea;--sheet: #fffbf5;--ink: #4f483e;--ink-deep: #3d372f;--muted: #8a7d6b;--accent: #d97757;--accent-deep: #c65f42;--accent-soft: #f7e3d8;--line: #e0d5c4;--s-yellow: #ffedb0;--s-pink: #ffd9d4;--s-mint: #d9ecd9;--s-blue: #dbe7f5;--s-purple: #e8ddf0;--s-orange: #ffe3c2;--ease: cubic-bezier(.22, 1, .36, 1);--font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;--font-serif: "Source Han Serif SC", "Noto Serif SC", "Songti SC", STSong, SimSun, serif;--font-kai: "Kaiti SC", STKaiti, KaiTi, "楷体", serif;--font-num: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, "PingFang SC", "Microsoft YaHei", monospace;--warm-shadow: 0 18px 44px -16px rgba(79, 72, 62, 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1.2rem}.bk-head{display:flex;flex-direction:column;padding-bottom:.9rem}.bk-tag{font-family:var(--font-num);font-size:.68rem;letter-spacing:.2em;color:var(--muted)}.book-right .bk-tag{color:var(--accent-deep)}.bk-title{font-family:var(--font-serif);font-size:clamp(1.25rem,2.2vw,1.55rem);font-weight:900;line-height:1.4;color:var(--ink-deep);margin-top:.45rem}.bk-sub{font-family:var(--font-kai);font-size:.85rem;color:var(--muted);margin-top:.4rem}.bk-lines{list-style:none;margin:0 -2.4rem}.bk-lines>li{display:flex;align-items:center;gap:.9rem;min-height:64px;padding:.45rem 2.4rem;border-bottom:1px dashed var(--line)}.bk-lines>li:last-child{border-bottom:none}.bk-no{flex:none;align-self:flex-start;margin-top:.35rem;font-family:var(--font-num);font-size:.72rem;letter-spacing:.08em;color:var(--accent-deep);background:var(--accent-soft);border-radius:6px;padding:.25em 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12px;transition:height .15s linear}.tl-node{position:relative;width:50%;padding:1.8rem 3rem 1.8rem 0}.tl-node[data-side=right]{margin-left:50%;padding:1.8rem 0 1.8rem 3rem}.tl-pin{position:absolute;top:2.7rem;right:-9px;width:17px;height:17px;border-radius:50%;background:radial-gradient(circle at 32% 28%,#c9bda9,var(--muted) 60%,#6f6455);box-shadow:0 3px 5px #3d372f4d;z-index:2;transition:background .4s,box-shadow .4s,transform .4s var(--ease)}.tl-node[data-side=right] .tl-pin{right:auto;left:-9px}.tl-node.is-active .tl-pin{background:radial-gradient(circle at 32% 28%,#eda98c,var(--accent) 55%,var(--accent-deep));box-shadow:0 0 0 5px #d9775733,0 4px 8px #c65f4280;transform:scale(1.15)}.tl-card{position:relative;background:var(--sheet);border:1px solid var(--line);border-radius:12px;padding:1.8rem 1.8rem 1.6rem;opacity:.3;transform:translateY(22px) rotate(-.6deg);transition:opacity .6s var(--ease),transform .6s var(--ease),box-shadow .3s;box-shadow:0 8px 20px -12px #4f483e4d}.tl-node[data-side=right] .tl-card{transform:translateY(22px) rotate(.6deg)}.tl-node.is-active .tl-card{opacity:1;transform:translateY(0) rotate(0)}.tl-card:hover{box-shadow:var(--warm-shadow)}.tl-month{display:inline-block;font-family:var(--font-num);font-size:.72rem;letter-spacing:.16em;color:var(--accent-deep);background:var(--accent-soft);padding:.3em .9em;border-radius:999px;margin-bottom:.8rem}.tl-card h3{font-family:var(--font-serif);font-size:1.18rem;font-weight:700;color:var(--ink-deep);margin-bottom:.5rem}.tl-card p{font-size:.92rem}.tl-jump{margin-top:.8rem;font-size:.82rem;font-weight:600;background:none;border:none;cursor:pointer;padding:0 0 1px;color:var(--accent-deep);border-bottom:1px dashed var(--accent);transition:transform .3s var(--ease);display:inline-block}.tl-jump:hover{transform:translate(5px)}.marginalia{margin-top:2.5rem;text-align:right;font-family:var(--font-kai);color:var(--muted);font-size:.95rem}@keyframes card-flash{0%,to{transform:rotate(var(--rot, 0deg)) translateY(0) scale(1);box-shadow:0 10px 22px -8px #4f483e59}18%,58%{transform:rotate(0) translateY(-8px) scale(1.02);box-shadow:0 26px 50px -14px #4f483e73,0 0 0 5px #d9775773}38%,78%{transform:rotate(var(--rot, 0deg)) translateY(0) scale(1);box-shadow:0 10px 22px -8px #4f483e59}}.card.is-flash{animation:card-flash 1.9s var(--ease);z-index:5}.filter-bar{display:flex;gap:.6rem;flex-wrap:wrap;margin-bottom:2.4rem}.filter-btn{font-size:.82rem;font-weight:500;padding:.5rem 1.25rem;border-radius:999px;background:var(--sheet);border:1px solid var(--line);color:var(--muted);cursor:pointer;transition:all .25s var(--ease)}.filter-btn:hover{border-color:var(--accent);color:var(--accent-deep);transform:translateY(-2px)}.filter-btn.is-active{background:var(--accent);border-color:var(--accent);color:#fffbf5;font-weight:700;box-shadow:0 8px 20px 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rgba(217,119,87,.35)}.card-metric{font-family:var(--font-serif);font-size:clamp(1.9rem,3.4vw,2.6rem);font-weight:900;line-height:1.15;color:var(--ink-deep);margin-bottom:.4rem}.card-metric small{font-size:.45em;font-weight:500;color:var(--muted)}.card-title{font-family:var(--font-serif);font-size:1.15rem;font-weight:700;color:var(--ink-deep)}.card-sub{font-size:.74rem;letter-spacing:.05em;color:#4f483e99;margin:.25rem 0 .9rem}.card-facts{list-style:none;font-size:.88rem}.card-facts li{padding:.15em 0 .15em 1.2em;position:relative}.card-facts li:before{content:"";position:absolute;left:.2em;top:.75em;width:7px;height:7px;border-radius:50%;background:var(--accent);opacity:.75}.card-detail{max-height:0;overflow:hidden;opacity:0;transition:max-height .6s var(--ease),opacity .45s,margin .45s}.card.is-open .card-detail{opacity:1;margin-top:1rem}.card-detail p{font-size:.9rem;line-height:1.9;overflow-wrap:anywhere}.card-ext{display:inline-block;margin-top:.9rem;font-size:.8rem;font-weight:600;color:var(--accent-deep);border-bottom:1px dashed var(--accent);padding-bottom:1px;transition:transform .3s var(--ease)}.card-ext:hover{transform:translate(4px)}.card-hint{position:absolute;right:1.3rem;bottom:1.1rem;font-size:.72rem;letter-spacing:.1em;color:#4f483e80;transition:color .25s}.card:hover .card-hint{color:var(--accent-deep)}.card.is-open .card-hint{font-size:0}.card.is-open .card-hint:after{content:"收起 −";font-size:.72rem}.card{perspective:1400px}.card-flip{position:relative;transform-style:preserve-3d;transition:transform .7s var(--ease)}.card.is-flipped .card-flip{transform:rotateY(180deg)}.card-face{backface-visibility:hidden;-webkit-backface-visibility:hidden}.card-back-face{position:absolute;top:0;right:0;bottom:-2rem;left:0;display:flex;flex-direction:column;transform:rotateY(180deg)}.flip-strip{display:block;width:100%;font-family:inherit;font-size:.7rem;letter-spacing:.08em;text-align:center;color:var(--muted);background:none;border:1.5px dashed rgba(79,72,62,.35);border-radius:3px;padding:1.05rem .6rem;margin-bottom:.9rem;cursor:pointer;transition:color .25s,border-color .25s}.flip-strip:hover{color:var(--accent-deep);border-color:#c65f4299}.card-back-face .card-photo{flex:1;min-height:0;display:block;width:100%;padding:0;border:none;background:none;cursor:zoom-in}.card-photo img{display:block;width:100%;height:100%;object-fit:cover;object-position:top;border-radius:3px;box-shadow:0 6px 14px -6px #4f483e59}.lightbox{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:4vh 4vw;background:#3d372fb8;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);cursor:zoom-out;opacity:0;pointer-events:none;transition:opacity .3s}.lightbox.is-open{opacity:1;pointer-events:auto}.lightbox img{max-width:100%;max-height:100%;border-radius:8px;box-shadow:0 30px 80px -20px #0000008c}.ai-diagram{position:relative;max-width:660px;margin:0 auto 3.2rem;background:var(--sheet);border:1px solid var(--line);border-radius:12px;padding:1.8rem 1.4rem 1.2rem;box-shadow:0 8px 20px -12px #4f483e4d}.ai-diagram svg{width:100%;height:auto;display:block}.ai-diagram figcaption{margin-top:.8rem;font-family:var(--font-kai);font-size:.85rem;color:var(--muted);text-align:center}.d-box{fill:var(--paper);stroke:var(--line);stroke-width:1}.d-box-main{fill:var(--accent);stroke:none}.d-box-gate{fill:var(--sheet);stroke:var(--accent);stroke-width:1.5}.d-line{stroke:var(--muted);stroke-width:1;stroke-dasharray:4 4;opacity:.65}.d-text{font-family:var(--font-body);font-size:13px;fill:var(--ink);text-anchor:middle}.d-text-main{font-family:var(--font-body);font-size:14px;font-weight:700;fill:#fffbf5;text-anchor:middle}.d-text-sub{font-family:var(--font-num);font-size:10px;fill:#fff3ec;text-anchor:middle}.d-text-sub2{font-family:var(--font-num);font-size:10px;fill:var(--muted);text-anchor:middle}.d-text-gate{fill:var(--ink-deep);font-weight:700}.d-text-gatesub{fill:var(--accent-deep)}.ai-notes{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;align-items:start}.ai-note{position:relative;border-radius:4px 4px 16px;padding:1.5rem 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scale(.7)}}.desk-edge{display:none;position:fixed;top:0;bottom:0;width:48px;z-index:1;pointer-events:none}@media (min-width: 1280px){.desk-edge{display:block}}.desk-edge-l{left:14px;background-image:radial-gradient(circle 7px at 50% 50%,rgba(61,55,47,.24) 0 4.5px,rgba(255,251,245,.9) 5.5px 7px,transparent 8px);background-size:48px 76px;background-position:center 36px}.desk-edge-r{right:14px;background-image:radial-gradient(circle 7px at 50% 50%,rgba(61,55,47,.24) 0 4.5px,rgba(255,251,245,.9) 5.5px 7px,transparent 8px);background-size:48px 76px;background-position:center 36px}.desk-ruler{position:absolute;bottom:60px;left:-2px;width:44px;transform:rotate(3deg);filter:drop-shadow(3px 6px 8px rgba(79,72,62,.3))}.desk-stapler{position:absolute;top:110px;right:-6px;width:150px;transform:rotate(-7deg);filter:drop-shadow(4px 8px 10px rgba(79,72,62,.3))}.site-footer{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding:1.6rem 2rem 1.8rem;border-top:1px dashed var(--line);font-size:.75rem;color:var(--muted)}.site-footer a:hover{color:var(--accent-deep)}@media (max-width: 900px){.ai-notes{grid-template-columns:1fr;max-width:460px;margin:0 auto}.book-inner{grid-template-columns:1fr;transform:none}.book-inner:before{display:none}.book-left{border-bottom:2px dashed var(--line)}}@media (max-width: 760px){.mast-issue,.mast-nav{display:none}.intro{padding:5rem 1.2rem 2rem}.intro-inner{grid-template-columns:1fr;gap:1.6rem}.intro-photo{justify-self:start;margin-top:0}.book{padding:.5rem 1.2rem 3rem}.book-page{padding:2rem 1.4rem .8rem}.bk-lines{margin:0 -1.4rem}.bk-lines>li{min-height:0;padding:.6rem 1.4rem}.polaroid{width:160px}.section{padding:4rem 1.2rem}.tl-string{left:8px;margin-left:0}.tl-node,.tl-node[data-side=right]{width:100%;margin-left:0;padding:1.2rem 0 1.2rem 2rem}.tl-pin,.tl-node[data-side=right] 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