:root{--night:#071521;--amber:#e9ad4f;--paper:#f2eadc;--muted:#8da4ae;--line:rgba(118,201,204,.22)}html{scroll-behavior:smooth;scroll-padding-top:90px}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}*{box-sizing:border-box}html{overflow-x: clip;background:var(--night)}body{margin:0;min-width:320px;overflow-x: clip;color:#eaf2ef;background:radial-gradient(circle at 82% 8%,rgba(31,108,134,.27),transparent 28rem),linear-gradient(180deg,#071521,#091d2a 48%,#06121c);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif}img{display:block;width:100%;height:100%;object-fit:cover}h1,h2,h3,p{overflow-wrap:anywhere}main,.site-header,footer{width:min(100% - 28px,1480px);margin-inline:auto}.site-header{height:78px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}main{width:100%;max-width:none;margin-inline:0}.site-header{flex-wrap:wrap;gap:8px 20px;height:auto;min-height:66px;padding-top:12px;padding-bottom:12px}.site-nav{display:flex;flex-wrap:wrap;align-items:center;gap:4px 16px;min-width:0}.site-nav a{display:inline-block;padding:3px 0;color:var(--muted);font-size:12.5px;text-decoration:none;border-bottom:1px solid transparent}.site-nav a:hover,.site-nav a:focus-visible{color:var(--amber);border-bottom-color:var(--amber)}.about-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:26px}.about-main p{margin:0 0 13px;max-width:38em;font-size:14px;line-height:1.9;opacity:.82}.about-facts{display:grid;grid-template-columns:minmax(0,1fr);margin:0;border-top:1px solid var(--line)}.about-facts>div{display:grid;min-width:0;grid-template-columns:minmax(0,1fr);gap:4px;padding:12px 0;border-bottom:1px solid var(--line)}.about-facts dt{font-size:12.5px;font-weight:700;color:var(--amber)}.about-facts dd{margin:0;min-width:0;font-size:13px;line-height:1.75;opacity:.78}.about-timeline{display:grid;gap:26px}.about-timeline-statement p{margin:0;max-width:42em;font-size:14px;line-height:1.9;opacity:.82}.site-footer{border-top:1px solid var(--line)}.footer-inner{display:grid;grid-template-columns:minmax(0,1fr);gap:26px;padding-top:42px;padding-bottom:26px;text-align:left}.footer-brand strong{display:block;font-size:17px;font-weight:700;color:var(--amber)}.footer-brand p{margin:6px 0 0;font-size:13px;line-height:1.8;opacity:.72}.footer-desc{max-width:26em}.footer-heading{margin:0 0 9px;font-size:12.5px;font-weight:700;letter-spacing:.08em;opacity:.95}.footer-nav ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px 16px;margin:0;padding:0;list-style:none}.footer-meta p{margin:0 0 5px;font-size:12.5px;line-height:1.75;opacity:.72}.footer-bottom{padding-top:14px;padding-bottom:24px;border-top:1px solid var(--line)}.footer-bottom p{margin:0;font-size:12px;opacity:.6}.site-footer>.footer-brand,.site-footer>.footer-index,.site-footer>.footer-meta,.site-footer>.footer-bottom{width:min(100% - 28px,1240px);margin-inline:auto}.site-footer>.footer-brand{padding-top:34px}.footer-index p,.site-footer>.footer-meta p,.site-footer>.footer-bottom{margin:0;font-size:12.5px;line-height:1.75;opacity:.72}.footer-index{margin-top:14px}.site-footer>.footer-meta{margin-top:8px}.site-footer>.footer-bottom{margin-top:18px;padding-bottom:26px}@media (min-width:720px){.about-grid{grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:44px}.about-facts>div{grid-template-columns:88px minmax(0,1fr);gap:0 16px;align-items:baseline}.footer-inner{grid-template-columns:minmax(0,1.3fr) minmax(0,1fr) minmax(0,1.1fr);gap:40px}}.site-header{position:sticky;top:0;z-index:50;min-height:74px;padding-top:14px;padding-bottom:14px;background:rgba(7,21,33,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.site-nav{gap:6px 26px}.site-nav a{font-size:15px;font-weight:600;letter-spacing:.01em;color:#b8cbd2;padding:6px 0;border-bottom:2px solid transparent}.site-nav a:hover,.site-nav a:focus-visible{color:var(--amber);border-bottom-color:var(--amber)}:root{--brand-1:#FFC53D;--brand-2:#F5901E;--brand-ink:#1a1a1a;}.brand-mark{width:42px;height:42px;flex:0 0 42px;display:block}.brand-mark.is-compact .mark-leaf{display:none}.brand-lockup{display:inline-flex;align-items:center;gap:12px;min-width:0}.brand-lockup .brand-name{font-size:24px;font-weight:800;letter-spacing:.06em;line-height:1.1}.brand-lockup .brand-en{display:block;margin-top:3px;font-size:11px;letter-spacing:.22em;opacity:.55}.site-footer .brand-mark{width:34px;height:34px;flex:0 0 34px}.footer-bottom{border-left:3px solid var(--brand-2);padding-left:14px}@media (max-width:719px){.brand-mark{width:32px;height:32px;flex:0 0 32px}.brand-lockup .brand-name{font-size:19px}.brand-lockup .brand-en{display:none}.site-footer .brand-mark{width:30px;height:30px;flex:0 0 30px}}.brand-about{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;margin-bottom:56px}.ba-tagline{color:var(--amber);font-size:19px;line-height:1.5;letter-spacing:.02em;margin-bottom:18px}.ba-body{color:var(--muted);font-size:14px;line-height:2.05;max-width:44em}.ba-body + .ba-body{margin-top:14px}.ba-queries{display:grid;grid-template-columns:minmax(0,1fr);border-top:1px solid var(--line)}.ba-queries > div{padding:14px 2px;border-bottom:1px solid var(--line);min-width:0}.ba-queries dt{color:var(--paper);font-size:14px;font-weight:600;line-height:1.4}.ba-queries dd{margin:6px 0 0;color:var(--muted);font-size:12px;line-height:1.8}@media (min-width:720px){.brand-about{gap:38px}.ba-queries{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:26px}.ba-tagline{font-size:21px}}@media (min-width:1120px){.brand-about{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:start}.ba-tagline{font-size:23px}}:root{--archive-teal:#062f31;--archive-teal-soft:#0e4a49;--old-paper:#eadfca;--old-paper-deep:#ccb98f;--ink-rule:rgba(30,63,59,.42);--fork-glow:#d7aa55;}html{scroll-padding-top:92px}body{background:radial-gradient(circle at 82% 10%,rgba(29,105,99,.26),transparent 34rem),linear-gradient(180deg,#041c20,#062f31 46%,#03171a);color:#f4eee1;overflow-x: clip}.site-header{background:rgba(4,28,32,.94);border-color:rgba(234,223,202,.16)}.reading-progress{position:fixed;z-index:80;inset:0 0 auto;height:3px;pointer-events:none;background:linear-gradient(90deg,var(--fork-glow) var(--reading-progress,0%),transparent 0)}.hero{position:relative;isolation:isolate;display:grid;gap:24px;width:min(100% - 28px,1480px);min-height:720px;grid-template-columns:minmax(0,1fr);grid-template-rows:auto auto;padding:72px 0 64px;border-bottom:1px solid rgba(234,223,202,.2)}.hero::before{content:"";position:absolute;inset:28px 0 18px;background:repeating-linear-gradient(0deg,rgba(234,223,202,.035) 0 1px,transparent 1px 34px);z-index:-2}.hero::after{content:"TIME";right:0;bottom:-12px;color:rgba(234,223,202,.035);font-size:clamp(100px,24vw,280px)}.hero-copy{min-width:0;text-align:left;order:1;align-self:center;max-width:760px;padding:0}.eyebrow{margin:0 0 15px;color:var(--fork-glow);font-size:10px;font-weight:800;letter-spacing:.26em}h1{margin:0;font-family:"Songti SC","STSong",serif;font-size:clamp(42px,8vw,84px);font-weight:500;line-height:1.05;letter-spacing:-.03em}.hero-lead{margin:24px 0 0;max-width:48em;color:#bfd1c8;font-size:15px;line-height:2}.hero-facts{display:flex;flex-wrap:wrap;gap:8px;margin:26px 0 0;padding:0;list-style:none}.hero-facts li{padding:7px 11px;border:1px solid rgba(234,223,202,.24);color:var(--old-paper);font-size:12px}.hero-portals{order:2;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;align-items:end;margin-top:32px}.portal-frame{position:relative;margin:0;min-width:0;aspect-ratio:2/3;overflow:hidden;border:1px solid var(--old-paper-deep);background:#0a3e40;box-shadow:0 22px 50px rgba(0,12,13,.34)}.portal-frame img{position:absolute;inset:0}.portal-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(2,22,24,.9))}.portal-frame figcaption{position:absolute;z-index:2;left:12px;right:12px;bottom:13px;display:grid;gap:4px;color:#fff;font-size:11px;line-height:1.45}.portal-frame figcaption span{color:var(--fork-glow);font:700 10px/1 Georgia,serif;letter-spacing:.16em}.portal-frame figcaption strong{color:var(--old-paper);font-size:13px}.portal-2{transform:translateY(18px)}.hero-fork{position:absolute;left:0;right:0;bottom:25px;height:46px;z-index:-1}.hero-fork i{position:absolute;left:0;width:58%;height:1px;transform-origin:left;background:linear-gradient(90deg,var(--fork-glow),transparent)}.hero-fork i:nth-child(1){top:23px}.hero-fork i:nth-child(2){top:23px;transform:rotate(3deg)}.hero-fork i:nth-child(3){top:23px;transform:rotate(-3deg)}.catalog,.narrative,.encyclopedia,.faq,.about,.section-shell{width:min(100% - 28px,1240px);padding:72px 0;margin-inline:auto}.section-heading{display:grid;gap:10px;margin-bottom:18px}.section-heading p{margin:0;color:var(--fork-glow);font:700 10px/1.2 Arial,sans-serif;letter-spacing:.22em}.section-heading h2{margin:0;max-width:24em;font:500 clamp(30px,6vw,58px)/1.16 "Songti SC","STSong",serif}.section-lead{margin:0 0 32px;max-width:58em;color:#b8cbc3;font-size:14px;line-height:2}.filter-controls{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 28px;padding:0;list-style:none}.filter-controls button{min-height:42px;padding:8px 13px;border:1px solid rgba(234,223,202,.26);background:transparent;color:var(--old-paper);font:inherit;cursor:pointer}.filter-controls button[aria-pressed="true"],.filter-controls button:focus-visible{border-color:var(--fork-glow);background:rgba(215,170,85,.12);outline:2px solid transparent}.catalog-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:18px}.catalog-card{display:grid;grid-template-columns:118px minmax(0,1fr);min-width:0;border:1px solid rgba(234,223,202,.18);background:rgba(2,25,27,.62)}.catalog-card[hidden]{display:none}.catalog-cover{position:relative;margin:0;width:100%;min-height:100%;aspect-ratio:2/3;overflow:hidden;background:#0b3b3b}.catalog-number{position:absolute;left:8px;bottom:8px;padding:4px 7px;background:rgba(2,23,24,.84);color:var(--fork-glow);font:700 14px/1 Georgia,serif}.catalog-copy{min-width:0;padding:16px 14px}.tag-row{display:flex;flex-wrap:wrap;gap:5px;margin:0 0 9px}.tag-row .tag{padding:4px 7px;border:1px solid rgba(234,223,202,.24);color:#9dd0c8;font-size:10px}.catalog-card h3{margin:0 0 9px;color:#fff6e7;font:600 18px/1.38 "Songti SC","STSong",serif}.card-synopsis,.causal-note{margin:0;color:#a9c2ba;font-size:12.5px;line-height:1.78}.causal-note{margin-top:10px;padding-top:10px;border-top:1px solid rgba(234,223,202,.12)}.causal-note strong,.editor-tier strong{display:block;margin-bottom:3px;color:var(--old-paper);font-size:10px;letter-spacing:.09em}.editor-tier{margin:11px 0 0;color:var(--fork-glow);font-size:12px}.narrative{position:relative}.timeline-disclosure{border-block:1px solid rgba(234,223,202,.24);background:rgba(232,219,191,.045)}.timeline-disclosure summary{padding:17px 0;color:var(--old-paper);font-weight:700;cursor:pointer}.timeline-disclosure summary:focus-visible{outline:2px solid var(--fork-glow);outline-offset:4px}.fork-line{list-style:none;margin:0;padding:0;counter-reset:branch}.branch-card{counter-increment:branch;display:grid;gap:9px;padding:22px 0;border-top:1px solid rgba(234,223,202,.13)}.branch-card h3{margin:0;color:#fff4dd;font:600 19px/1.4 "Songti SC","STSong",serif}.branch-card h3::before{content:counter(branch,decimal-leading-zero) " / ";color:var(--fork-glow);font:500 11px/1 Arial,sans-serif}.branch-ink{position:relative;height:calc(12px + var(--fork-depth) * 10px)}.branch-ink i,.branch-ink b{position:absolute;left:0;right:0;height:1px}.branch-ink i{top:0;background:rgba(234,223,202,.34)}.branch-ink b{bottom:0;background:linear-gradient(90deg,#76c9cc,var(--fork-glow))}.timeline-original,.timeline-rewrite{margin:0;font-size:13.5px;line-height:1.8}.timeline-original{color:#8ea49e}.timeline-rewrite{color:#d9e6dd}.timeline-original strong,.timeline-rewrite strong{display:inline-block;min-width:7.5em;margin-right:8px;color:var(--old-paper);font-size:11px;letter-spacing:.06em}.encyclopedia{position:relative;color:#24332d;background:var(--old-paper);padding-inline:clamp(14px,3vw,36px)}.encyclopedia .section-heading h2{color:#142b28}.encyclopedia .section-lead{color:#4b5d55}.encyclopedia .section-heading p{color:#7b5520}.glossary-grid{display:grid;grid-template-columns:minmax(0,1fr);margin:0;border-top:1px solid var(--ink-rule)}.glossary-item{padding:18px 0;border-bottom:1px solid var(--ink-rule)}.glossary-item dt{font:700 18px/1.4 "Songti SC","STSong",serif;color:#103a37}.glossary-item dd{margin:7px 0 0;font-size:13px;line-height:1.85;color:#4b5b54}.longtail-list{display:grid;gap:0;margin:42px 0 0;padding:0;list-style:none;border-top:2px solid #284a45}.longtail-item{padding:20px 0;border-bottom:1px solid var(--ink-rule)}.longtail-item h3{margin:0 0 7px;color:#123f3a;font-size:17px}.longtail-item p{margin:0;color:#50615a;font-size:13.5px;line-height:1.85}.faq-list{display:grid;gap:0;margin:0;padding:0;list-style:none;border-top:1px solid rgba(234,223,202,.22)}.faq-item{padding:24px 0;border-bottom:1px solid rgba(234,223,202,.18)}.faq-item h3{margin:0 0 9px;color:var(--old-paper);font-size:18px}.faq-item p{margin:0;max-width:54em;color:#afc4bc;font-size:14px;line-height:1.9}.about .brand-about{margin:32px 0 48px;padding:28px;border:1px solid rgba(234,223,202,.18);background:rgba(2,25,27,.5)}.about-grid{border-top:1px solid rgba(234,223,202,.18);padding-top:28px}.about-facts{border-color:rgba(234,223,202,.2)}.about-facts>div{border-color:rgba(234,223,202,.14)}.site-footer{width:100%;max-width:none;margin:0;border-color:rgba(234,223,202,.18);background:#021416}.footer-inner,.footer-bottom{width:min(100% - 28px,1240px);margin-inline:auto}.footer-nav ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 16px;margin:0;padding:0;list-style:none;color:#92aaa3;font-size:13px}.back-to-top{position:fixed;right:18px;bottom:18px;z-index:70;min-width:44px;min-height:44px;padding:10px 13px;border:1px solid var(--fork-glow);background:#052729;color:var(--old-paper);opacity: 0;visibility: hidden;pointer-events: none;transition:opacity .2s ease}.back-to-top.is-visible{opacity: 1;visibility:visible;pointer-events:auto}@media (min-width:720px){.hero{width:min(100% - 64px,1480px);grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);grid-template-rows:1fr;gap:48px;align-items:center}.hero-portals{margin-top:0}.portal-2{transform:translateY(30px)}.catalog,.narrative,.encyclopedia,.faq,.about,.section-shell{width:min(100% - 64px,1240px);padding-block:88px}.catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.catalog-card{grid-template-columns:150px minmax(0,1fr)}.branch-card{grid-template-columns:150px minmax(0,1fr);grid-template-areas:"title ink" "title original" "title rewrite";column-gap:32px}.branch-card h3{grid-area:title}.branch-ink{grid-area:ink}.timeline-original{grid-area:original}.timeline-rewrite{grid-area:rewrite}.glossary-grid{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:44px}.longtail-list{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:44px}.faq-item{display:grid;grid-template-columns:minmax(0,20em) minmax(0,1fr);gap:32px;align-items:start}.faq-item h3{margin:0}.footer-inner,.footer-bottom{width:min(100% - 64px,1240px)}}@media (min-width:1120px){.site-nav{gap:6px 32px}.site-nav a{font-size:16px}.hero{min-height:790px}.hero-copy{padding-left:3%}.hero-portals{gap:14px}.catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.catalog-card{grid-template-columns:180px minmax(0,1fr)}.catalog-copy{padding:22px 20px}.glossary-grid{grid-template-columns:repeat(4,minmax(0,1fr));column-gap:30px}}@media (max-width:719px){.site-header{min-height:0}.site-nav{gap:4px 16px}.site-nav a{font-size:13.5px}.reading-progress{display:none}}@media (max-width:1439px){.back-to-top{position:static;display:block;width:max-content;margin:18px 18px 24px auto}}@media (prefers-reduced-motion:reduce){.back-to-top{transition:none}.portal-2{transform:none}}