:root{--night:#251b34;--night-soft:#352842;--fog:#f5f4f7;--white:#fff;--ink:#252329;--muted:#5c5863;--line:#d7d3dd;--lime:#d3e99b;--green:#395417;--offset:96px;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;background:var(--fog);color:var(--ink);font-synthesis:none;scroll-behavior:smooth}
*{box-sizing:border-box}body{margin:0;line-height:1.8;font-size:1rem}h1,h2,h3,p,dl,dd,ul,ol{margin:0}h1,h2,h3{line-height:1.3;overflow-wrap:anywhere}h2{font-size:clamp(1.75rem,3vw,2.8rem);font-weight:700;letter-spacing:-.04em}h3{font-size:1.4rem;font-weight:700}a{color:inherit;text-decoration:none;touch-action:manipulation}a:focus-visible,summary:focus-visible{outline:3px solid var(--green);outline-offset:5px}img{display:block;max-width:100%;height:auto}section[id],article[id],div[id]{scroll-margin-top:var(--offset)}.wrap{width:min(1380px,calc(100% - 112px));margin-inline:auto}.space{padding-block:88px}.skip-link{position:fixed;left:15px;top:15px;z-index:100;background:var(--lime);color:var(--night);padding:12px 20px;transform:translateY(-160%)}.skip-link:focus{transform:none}.eyebrow{font-size:.875rem;letter-spacing:.08em;font-weight:650;color:var(--muted)}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:35px;margin-bottom:42px}.section-heading h2{margin-top:12px}.section-heading>p{max-width:390px;color:var(--muted)}.text-link{display:inline-flex;align-items:center;min-height:44px;border-bottom:1px solid var(--green);color:var(--green);font-weight:650;transition:background .18s}.text-link:hover{background:#e7efda}.text-link:active{box-shadow:inset 0 -3px var(--green)}
.mobile-header{display:none}.brand{font-size:1.3rem;font-weight:750;white-space:nowrap}.hero{background:var(--night);color:#fff}.hero-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,6fr);align-items:center;gap:64px;padding-block:60px}.hero-copy{padding-block:20px}.hero-copy>.eyebrow{color:var(--lime)}.hero h1{margin-top:23px}.hero-name{display:block;font-size:clamp(3.25rem,5.6vw,5.7rem);letter-spacing:-.06em;font-weight:750;line-height:1.16;white-space:nowrap}.hero-location{display:block;font-size:1.2rem;font-weight:500;letter-spacing:.015em;margin-top:18px;color:#e6e0ec}.hero-tagline{font-size:1.6rem;font-weight:650;line-height:1.6;margin-top:31px}.hero-intro{margin-top:18px;max-width:410px;color:#ded8e7;line-height:1.95}.hero-action{display:inline-flex;min-height:48px;align-items:center;color:var(--night);background:var(--lime);padding:10px 24px;font-size:1rem;font-weight:650;margin-top:30px;border:1px solid var(--lime);transition:background .18s,box-shadow .18s}.hero-action:hover{background:#e2efc0;box-shadow:0 6px 20px #0003}.hero-action:active{box-shadow:inset 0 0 0 2px var(--night)}.hero-action:focus-visible{outline-color:var(--lime)}.hero-art{margin:0;background:#17111f;padding:12px;border:1px solid #57465f}.hero-art img{width:100%;height:auto}.hero-scope{padding-block:18px;border-top:1px solid #5c4b66;font-size:.925rem;color:#d8d0e1}.hero-scope>.wrap{display:flex;justify-content:space-between;gap:22px}.hero-scope span{max-width:700px}
.desktop-nav{position:sticky;top:0;z-index:30;background:#fff;border-bottom:1px solid var(--line)}.desktop-nav>.wrap{min-height:83px;display:flex;align-items:center;justify-content:space-between;gap:28px}.main-nav{display:flex;gap:7px;align-items:center}.main-nav a{display:flex;align-items:center;justify-content:center;min-height:44px;padding:8px 12px;font-size:.94rem;font-weight:550;white-space:nowrap;border-radius:5px;transition:background .16s,box-shadow .16s}.main-nav a:hover{background:#ece9f0}.main-nav a[aria-current]{color:var(--green);background:#edf3e2;box-shadow:inset 0 -2px var(--green)}
.feature-unit{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:center;gap:85px;margin-top:55px}.feature-unit+.feature-unit{padding-top:55px;border-top:1px solid var(--line)}.feature-unit:nth-of-type(even) .feature-image{order:2}.feature-image{background:#e7e3ec;padding:28px;display:flex;justify-content:center}.feature-image>.image-link{width:100%;max-width:320px}.image-link{display:block;min-width:44px;min-height:44px;border:1px solid transparent;transition:border-color .18s,box-shadow .18s,filter .18s}.image-link img{width:100%;height:auto}.image-link:hover{border-color:var(--green);box-shadow:0 8px 24px #251b3420;filter:brightness(1.03)}.image-link:active{box-shadow:inset 0 0 0 2px var(--green);filter:brightness(.94)}.image-link:focus-visible{outline:3px solid var(--green);outline-offset:6px}.status{font-size:.875rem;font-weight:650;color:var(--green)}.feature-copy h3{font-size:clamp(1.85rem,2.8vw,2.8rem);margin-top:13px}.creator{color:var(--muted);font-size:.9rem;margin-top:14px;line-height:1.7}.intro{font-size:1.07rem;margin-top:25px;line-height:1.9}.tags{display:flex;flex-wrap:wrap;gap:9px 17px;color:var(--muted);font-size:.875rem;margin-top:21px}.tags span{border-bottom:1px solid var(--line);padding-bottom:3px}.facts{font-size:.94rem;margin-top:27px;border-top:1px solid var(--line);padding-top:16px}.facts>div{display:grid;grid-template-columns:7em minmax(0,1fr);gap:15px;padding-block:5px}.facts dt{color:var(--muted)}.feature-note{color:var(--muted);font-size:.94rem;margin-top:23px}.catalogue-route{padding:26px 0 0;display:flex;justify-content:flex-end}
.chapters{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.chapter-layout{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.8fr);gap:100px}.chapter-heading>p:not(.eyebrow){color:var(--muted);margin-top:27px}.chapter-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px}.chapter-list article{border-left:1px solid var(--line);padding-left:26px}.chapter-list h3{font-size:1.2rem}.version{color:var(--muted);font-size:.875rem;margin-top:10px}.chapter-list ol{padding-left:1.2em;margin-top:23px}.chapter-list li{padding-block:7px;font-size:.94rem}.chapter-list .chapter-boundary{margin-top:21px;font-size:.875rem;color:var(--muted)}
.finished-layout{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:68px}.finished-book{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:28px;align-items:start}.finished-book h3{font-size:1.6rem;margin-top:12px}.finished-book .intro{font-size:1rem;margin-top:20px}.finished-book .facts>div{grid-template-columns:1fr;gap:0}.serial{border-block:1px solid var(--line)}.release-row{display:grid;grid-template-columns:180px minmax(0,1fr) 160px;align-items:start;gap:40px;padding:29px 0;border-top:1px solid var(--line)}.release-row:last-child{border-bottom:1px solid var(--line)}.release-row time{font-size:1.2rem;font-weight:650;letter-spacing:.025em}.release-row p{color:var(--muted);font-size:.94rem;margin-top:8px}.release-channel{color:var(--muted);font-size:.9rem;text-align:right}
.story-choices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:45px}.story-choice{border-top:2px solid var(--night);padding-top:21px}.story-choice p{font-size:.98rem;color:var(--muted);margin-top:17px}.story-choice ul{list-style:none;padding:0;margin-top:24px}.story-choice li{padding-block:8px;border-top:1px solid var(--line);font-weight:600}.story-route{margin-top:33px}
.reading{background:var(--night);color:#fff}.reading .eyebrow{color:var(--lime)}.reading-layout{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:110px}.reading h2{margin-top:18px}.reading-lead{font-size:1.2rem;line-height:1.9;margin-top:25px;color:#eee9f2}.reading-copy p{color:#e1dbe8;font-size:1rem}.reading-copy p+p{margin-top:25px}.reading-info{display:inline-flex;min-height:48px;align-items:center;padding:9px 21px;border:1px solid var(--lime);margin-top:28px;font-size:1rem;font-weight:650;color:var(--lime);transition:background .16s,box-shadow .16s}.reading-info:hover{background:var(--night-soft);box-shadow:0 5px 20px #0002}.reading-info:active{box-shadow:inset 0 0 0 2px var(--lime)}.reading-info:focus-visible{outline-color:var(--lime)}
.devices{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:100px}.devices h2{margin-top:17px}.device-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:33px;margin-top:34px}.device-columns h3{font-size:1.15rem}.device-columns p{font-size:.94rem;color:var(--muted);margin-top:15px}.application{border-left:1px solid var(--line);padding-left:48px}.application h2{font-size:2rem}.application p:not(.eyebrow){font-size:.98rem;margin-top:25px;color:var(--muted)}.faq-layout{display:grid;grid-template-columns:minmax(0,.7fr) minmax(0,1.3fr);gap:100px}.faq{background:#fff;border-block:1px solid var(--line)}.faq h2{margin-top:17px}.answers article{padding-block:24px;border-top:1px solid var(--line)}.answers article:first-child{padding-top:0;border-top:0}.answers h3{font-size:1.15rem}.answers p{margin-top:12px;font-size:.98rem;color:var(--muted)}.brand-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);gap:100px}.brand-layout h2{margin-top:18px}.brand-copy>p{font-size:1rem;color:var(--muted)}.brand-copy h3{font-size:1.2rem;margin-top:27px}.brand-copy h3+p{margin-top:14px}.footer{border-top:1px solid var(--line);padding-block:27px}.footer>.wrap{display:flex;justify-content:space-between;align-items:center;gap:25px;color:var(--muted);font-size:.875rem}.footer span:first-child{font-size:1.2rem;font-weight:700;color:var(--night)}
.catalogue-top{background:var(--night);color:#fff;padding-block:54px 58px}.catalogue-top h1{font-size:clamp(2rem,4vw,3.8rem);margin-top:17px}.catalogue-top .eyebrow{color:var(--lime)}.catalogue-top p:not(.eyebrow){max-width:640px;margin-top:21px;color:#e1dbe8}.catalogue-navigation{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--line);z-index:30}.catalogue-navigation>.wrap{min-height:79px;display:flex;justify-content:space-between;align-items:center;gap:24px}.catalogue-navigation nav{display:flex;gap:18px;align-items:center}.catalogue-navigation a{padding:8px 10px;min-height:44px;font-weight:600;font-size:.94rem;border-radius:4px}.catalogue-navigation a:hover{background:#edf3e2}.region-ledger{padding-block:65px;border-bottom:1px solid var(--line)}.region-heading{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:34px}.region-heading>p{color:var(--muted);max-width:430px}.ledger-book{display:grid;grid-template-columns:130px minmax(0,1.4fr) minmax(0,.8fr);gap:35px;padding-block:30px;border-top:1px solid var(--line);align-items:start}.ledger-book h3{font-size:1.5rem}.ledger-book .intro{font-size:1rem;margin-top:17px}.ledger-book .creator{margin-top:10px}.ledger-book .tags{margin-top:17px}.ledger-book .facts{margin-top:0;border:0;padding:0;font-size:.9rem}.ledger-book .status{margin-bottom:15px}.ledger-book .facts>div{grid-template-columns:1fr;gap:3px;margin-top:7px}.catalogue-bottom{padding:40px 0 70px;color:var(--muted);font-size:.94rem}
@media(max-width:1200px){:root{--offset:94px}.wrap{width:calc(100% - 72px)}.desktop-nav{display:none}.mobile-header{display:block;background:#fff;position:sticky;top:0;z-index:40;border-bottom:1px solid var(--line)}.mobile-header>.wrap{display:flex;justify-content:space-between;align-items:center;gap:25px;min-height:76px}.menu summary{display:flex;align-items:center;gap:13px;justify-content:center;min-width:115px;min-height:44px;cursor:pointer;font-size:.94rem;font-weight:600;list-style:none}.menu summary::-webkit-details-marker{display:none}.menu-mark{width:17px;height:10px;border-block:1px solid var(--night)}.menu[open] .main-nav{position:absolute;top:100%;left:0;width:100%;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));padding:17px 32px 20px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 12px 26px #251b3412;max-height:var(--menu-height,55vh);overflow-y:auto}.main-nav a{white-space:normal;line-height:1.6;text-align:center}.hero-layout{gap:35px;padding-block:48px}.hero-name{font-size:4.2rem}.hero-tagline{font-size:1.4rem}.feature-unit{gap:45px}.chapter-layout{grid-template-columns:1fr;gap:35px}.chapter-heading>p:not(.eyebrow){margin-top:17px}.finished-layout{gap:40px}.finished-book{grid-template-columns:1fr}.finished-book .image-link{max-width:230px}.reading-layout{gap:50px}.devices{gap:45px}.application{padding-left:32px}.faq-layout,.brand-layout{gap:45px}.catalogue-navigation nav{gap:8px}}
@media(max-width:850px){.space{padding-block:62px}.hero-layout{grid-template-columns:1fr;gap:35px;padding-block:44px}.hero-copy{max-width:650px;padding-block:0}.hero-name{font-size:clamp(3.75rem,8.5vw,5.2rem)}.hero-location{font-size:1.15rem}.hero-intro{max-width:610px}.hero-art{width:100%;max-width:650px;justify-self:end}.hero-scope>.wrap{display:block}.hero-scope span{display:block}.hero-scope span+span{margin-top:5px}.feature-unit{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:35px}.feature-unit:nth-of-type(even) .feature-image{order:0}.feature-image{padding:20px}.chapter-list{gap:20px}.chapter-list article{padding-left:19px}.section-heading{align-items:start}.section-heading>p{max-width:300px}.release-row{grid-template-columns:135px minmax(0,1fr);gap:25px}.release-channel{grid-column:2;text-align:left;margin-top:-20px}.story-choices{gap:27px}.reading-layout,.devices,.faq-layout,.brand-layout{grid-template-columns:1fr;gap:35px}.application{border-left:0;border-top:1px solid var(--line);padding:33px 0 0}.faq-layout{gap:33px}.ledger-book{grid-template-columns:120px minmax(0,1fr);gap:25px}.ledger-book .facts{grid-column:2;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 22px}.ledger-book .status{grid-column:1/-1;margin-bottom:0}.ledger-book .facts>div{margin-top:0}.region-heading{display:block}.region-heading>p{margin-top:15px}}
@media(max-width:600px){.wrap{width:calc(100% - 36px)}.space{padding-block:46px}.mobile-header>.wrap{min-height:70px;gap:15px}.brand{font-size:1.2rem}.menu summary{font-size:.875rem;min-width:96px}.menu[open] .main-nav{grid-template-columns:repeat(2,minmax(0,1fr));padding:13px 18px 18px}.main-nav a{min-height:48px;font-size:.94rem}.hero-layout{padding-block:37px;gap:30px}.hero-name{font-size:clamp(3rem,12vw,4.3rem)}.hero-location{font-size:1rem;margin-top:16px}.hero h1{margin-top:18px}.hero-tagline{font-size:1.22rem;margin-top:24px}.hero-intro{font-size:.98rem;margin-top:14px}.hero-action{margin-top:23px}.hero-art{padding:8px}.hero-scope{font-size:.875rem}.section-heading{display:block;margin-bottom:29px}.section-heading>p{margin-top:17px;max-width:none}.feature-unit{grid-template-columns:1fr;gap:28px;margin-top:30px}.feature-unit+.feature-unit{padding-top:36px;margin-top:36px}.feature-image{padding:20px}.feature-image>.image-link{max-width:240px}.feature-copy h3{font-size:2rem}.feature-copy .intro{font-size:1rem;margin-top:18px}.feature-copy .facts{font-size:.925rem;margin-top:22px}.feature-note{font-size:.9rem}.catalogue-route{justify-content:start}.chapter-list{grid-template-columns:1fr;gap:25px}.chapter-list article{border-left:0;border-top:1px solid var(--line);padding:23px 0 0}.chapter-list ol{display:block;margin-top:16px}.chapter-list .chapter-boundary{margin-top:16px}.finished-layout{grid-template-columns:1fr;gap:39px}.finished-book{grid-template-columns:minmax(0,.7fr) minmax(0,1fr);gap:20px}.finished-book h3{font-size:1.3rem;margin-top:9px}.finished-book .intro{font-size:.94rem;margin-top:15px}.finished-book .creator{font-size:.875rem}.finished-book .facts{font-size:.875rem;margin-top:19px}.release-row{grid-template-columns:1fr;gap:14px;padding-block:25px}.release-row h3{font-size:1.2rem}.release-row time{font-size:1rem}.release-channel{grid-column:auto;margin-top:0}.story-choices{grid-template-columns:1fr;gap:33px}.story-choice h3{font-size:1.3rem}.reading h2{font-size:2rem}.reading-lead{font-size:1.1rem;margin-top:22px}.reading-copy p{font-size:.98rem}.device-columns{grid-template-columns:1fr;gap:25px;margin-top:28px}.application h2{font-size:1.8rem}.answers h3{font-size:1.1rem}.brand-copy>p{font-size:.98rem}.footer>.wrap{flex-wrap:wrap;gap:12px}.catalogue-top{padding-block:38px}.catalogue-top h1{font-size:2.1rem}.catalogue-navigation>.wrap{min-height:76px;align-items:center;gap:10px;flex-wrap:wrap;padding-block:9px}.catalogue-navigation .brand{font-size:1.1rem}.catalogue-navigation nav{gap:4px;flex-wrap:wrap}.catalogue-navigation a{font-size:.875rem;padding:7px 8px}.region-ledger{padding-block:45px}.ledger-book{grid-template-columns:100px minmax(0,1fr);gap:20px;padding-block:27px}.ledger-book h3{font-size:1.25rem}.ledger-book .intro{font-size:.925rem;margin-top:13px}.ledger-book .creator{font-size:.875rem}.ledger-book .tags{font-size:.875rem;gap:8px 11px}.ledger-book .facts{grid-column:1/-1;grid-template-columns:repeat(2,minmax(0,1fr));font-size:.875rem}.catalogue-bottom{padding-block:30px 45px}}
@media(max-width:360px){.hero-name{font-size:11.8vw}.finished-book{grid-template-columns:1fr}.finished-book .image-link{max-width:190px}.ledger-book{grid-template-columns:1fr}.ledger-book .image-link{max-width:165px}.ledger-book .facts{grid-column:1}.catalogue-navigation>.wrap{align-items:start}.catalogue-navigation nav{max-width:100%}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}
.country-choices{display:flex;flex-wrap:wrap;gap:15px 28px;margin-top:35px;padding-top:26px;border-top:1px solid var(--line)}.country-choices a{display:inline-flex;min-height:44px;align-items:center;color:var(--green);font-weight:650;border-bottom:1px solid var(--green);padding:2px 3px;transition:background .16s,box-shadow .16s}.country-choices a:hover{background:#e7efda}.country-choices a:active{box-shadow:inset 0 -3px var(--green)}.hero-art{max-width:750px}
.hero-name{white-space:normal}
.menu:not([open]) .main-nav{display:none}.desktop-nav .main-nav{min-width:0;flex:1;justify-content:flex-end;flex-wrap:wrap;padding-block:12px}.facts dd{min-width:0;overflow-wrap:anywhere}.facts>div{grid-template-columns:minmax(0,.55fr) minmax(0,1fr)}.wide-nav .desktop-nav{display:none}.wide-nav .mobile-header{display:block;background:#fff;position:sticky;top:0;z-index:40;border-bottom:1px solid var(--line)}.wide-nav .mobile-header>.wrap{display:flex;align-items:center;justify-content:space-between;min-height:76px;gap:25px}.wide-nav .menu summary{display:flex;align-items:center;gap:13px;min-width:115px;min-height:44px;cursor:pointer;font-size:.94rem;font-weight:600;list-style:none}.wide-nav .menu summary::-webkit-details-marker{display:none}.wide-nav .menu-mark{width:17px;height:10px;border-block:1px solid var(--night)}.wide-nav .menu[open] .main-nav{position:absolute;top:100%;left:0;width:100%;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));padding:17px 32px 20px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 12px 26px #251b3412;max-height:var(--menu-height,55vh);overflow-y:auto}
@media(max-width:600px){.feature-copy .facts>div{grid-template-columns:1fr;gap:2px}}
@media(max-width:850px){.ledger-book>div:last-child{grid-column:2}}
@media(max-width:600px){.ledger-book>div:last-child{grid-column:1/-1}}