@charset "UTF-8";
:root{--serif:"Microsoft YaHei","PingFang SC","Segoe UI",sans-serif;--sans:"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;color-scheme:light;--ink:#1b2c45;--deep:#071933;--paper:#f8fafd;--white:#ffffff;--muted:#5b697c;--line:#dce3ec;--gold:#876126;--light:#edf3fb;--ice:#356d93;--radius:12px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.85 var(--sans);-webkit-font-smoothing:antialiased}body:has(.site-nav.is-open){overflow:hidden}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer;color:inherit}button:disabled{cursor:default}img{display:block;max-width:100%}svg{vertical-align:middle}::selection{background:#c6ddfc;color:#112b50}:focus-visible{outline:2px solid var(--gold);outline-offset:5px}h1,h2,h3,p{margin:0}h1,h2{font-weight:500;line-height:1.5;letter-spacing:.025em}h1{font-size:clamp(34px,4vw,56px)}h2{font-size:clamp(27px,3vw,37px)}h3{font-size:20px;font-weight:500;line-height:1.6}p{color:var(--muted)}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.wrap{width:min(1240px,calc(100% - 96px));margin-inline:auto}.narrow{width:min(800px,calc(100% - 96px));margin-inline:auto}.section{padding-block:96px}.section.soft{background:#edf3fb;border-block:1px solid #dce6f3}.eyebrow{display:block;color:var(--gold);font-size:10px;font-weight:500;letter-spacing:.21em;text-transform:uppercase;margin-bottom:18px}.eyebrow::before{content:"";display:inline-block;width:22px;height:1px;margin-right:13px;background:var(--gold);vertical-align:middle}.section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:40px}.section-head p{max-width:480px;margin-top:14px;font-size:14px}.text-link{display:inline-flex;align-items:center;gap:20px;padding-bottom:6px;font-size:13px;white-space:nowrap;color:#315d91;border-bottom:1px solid #91afd1}.text-link .arrow{transition:transform .2s}.text-link:hover .arrow{transform:translate(3px,-3px)}.arrow{font:20px/1 var(--sans)}.button{display:inline-flex;align-items:center;justify-content:center;gap:24px;min-height:50px;padding:12px 25px;border:1px solid #d7b778;border-radius:3px;color:#17140e;background:linear-gradient(115deg,#eddbb3,#c9a664);font-size:13px;font-weight:600;transition:border-color .2s,box-shadow .2s,transform .2s}.button:hover{transform:translateY(-2px);box-shadow:0 6px 26px #d7b77820;border-color:#fae6ba}.button.outline{font-weight:400;border-color:#aebfd4;background:#ffffffa6;color:#284b75}.button.outline:hover{border-color:#4c7cb6;background:#edf4ff}.buttons{display:flex;gap:14px;flex-wrap:wrap}.skip{position:fixed;top:0;left:16px;z-index:100;padding:12px;transform:translateY(-150%);background:#eeddb8;color:#17140e}.skip:focus{transform:translateY(0)}
.draft-bar{padding:6px 16px;border-bottom:1px solid #4a3e29;background:#242016;color:#e1c796;text-align:center;font-size:11px;letter-spacing:.04em}.draft-bar a{margin-left:12px;text-decoration:underline;text-underline-offset:3px}.site-header{position:sticky;top:0;z-index:30;backdrop-filter:blur(18px);background:#07172ff2;color:#f0f5ff;border-bottom:1px solid #c3dcff20;--gold:#e5c78c}.header-inner{display:flex;align-items:center;justify-content:space-between;height:84px;gap:24px}.brand{display:inline-flex;align-items:center;gap:13px;flex-shrink:0}.brand-logo{width:50px;height:50px;object-fit:contain;border-radius:5px;flex-shrink:0}.brand-mark{display:grid;place-items:center;width:44px;height:44px;border:1px solid var(--gold);color:var(--gold);font-size:24px}.brand strong{display:block;font-size:21px;line-height:1.5;font-weight:500;letter-spacing:.18em}.brand small{display:block;font-size:7px;line-height:1.8;letter-spacing:.26em;color:#bea875}.site-nav{display:flex;align-items:center;gap:30px}.site-nav>a{position:relative;padding-block:29px;font-size:12px;transition:color .2s;color:#c2cfe1}.site-nav>a:hover,.site-nav>a[aria-current=page]{color:#ead5a9}.site-nav>a[aria-current=page]::after{position:absolute;right:0;bottom:18px;left:0;height:1px;background:var(--gold);content:""}.site-nav .nav-contact{padding:8px 17px;border:1px solid #7b6845;border-radius:3px;color:#dfc898}.site-nav .nav-contact[aria-current=page]::after{display:none}.menu-toggle{display:none;min-height:44px;padding:9px 13px;border:1px solid #484538;border-radius:3px;background:transparent;color:#dfc898}
/* The core is a brand illustration. Motion is CSS-only and respects reduced motion. */
.hero{position:relative;isolation:isolate;overflow:hidden;background:radial-gradient(ellipse at 76% 44%,#214f9580,transparent 58%),radial-gradient(ellipse at 50% 110%,#3969a03b,transparent 65%),linear-gradient(125deg,#05132b,#102e5a 64%,#081a38);color:#f3f6ff;--muted:#b6c9e3;--gold:#e5c78c}.hero::before{position:absolute;inset:0;z-index:-1;content:"";background:radial-gradient(1.5px 1.5px at 6% 18%,#e1f0ffbb 80%,transparent),radial-gradient(1px 1px at 15% 44%,#badbff99 80%,transparent),radial-gradient(1px 1px at 22% 9%,#e1f0ffcc 80%,transparent),radial-gradient(1.5px 1.5px at 34% 30%,#d0e8ff99 80%,transparent),radial-gradient(1px 1px at 42% 74%,#b9d8ffaa 80%,transparent),radial-gradient(1px 1px at 49% 17%,#eef5ffcc 80%,transparent),radial-gradient(1.5px 1.5px at 57% 49%,#acd2ffbb 80%,transparent),radial-gradient(1px 1px at 63% 10%,#e2f0ffcc 80%,transparent),radial-gradient(2px 2px at 77% 17%,#def0ffcc 80%,transparent),radial-gradient(1px 1px at 87% 40%,#dcecffbb 80%,transparent),radial-gradient(1.5px 1.5px at 94% 13%,#e0f1ffee 80%,transparent),radial-gradient(1px 1px at 92% 73%,#b9d9ffcc 80%,transparent),radial-gradient(1.5px 1.5px at 73% 88%,#cde8ffbb 80%,transparent),radial-gradient(1px 1px at 31% 91%,#bfdaffbb 80%,transparent),linear-gradient(120deg,transparent 45%,#6e9ded09 57%,transparent 68%);background-size:auto;mask-image:none}.hero-grid{position:relative;display:grid;grid-template-columns:1.04fr 1fr;align-items:center;gap:20px;min-height:660px}.hero-copy{position:relative;z-index:2;padding:72px 0 82px}.hero .eyebrow{margin-bottom:30px;color:#c8b78f;font-size:10px;letter-spacing:.18em}.hero h1{font:500 clamp(40px,4.4vw,66px)/1.45 var(--serif);letter-spacing:.035em;color:#f6f3eb}.hero h1 em{font-style:normal;color:#e2c58a;background:linear-gradient(110deg,#f4e8ca,#c9a267);background-clip:text;-webkit-text-fill-color:transparent}.hero-copy>p{max-width:455px;margin:25px 0 34px;font-size:14px;line-height:2.05;color:#bbcee8}.hero-caption{display:flex;align-items:center;gap:10px;margin-top:25px;font-size:10px;letter-spacing:.05em;color:#a1b8d5}.hero-caption::before{width:4px;height:4px;background:var(--gold);content:""}.hero-art{position:relative;width:112%;max-width:640px;aspect-ratio:1;justify-self:center}.hero-art::before{position:absolute;inset:20%;border-radius:50%;content:"";background:#3d95f32a;filter:blur(46px)}.hero-art>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}.core-orbit{position:absolute;inset:18%;border-radius:50%;animation:orbit 32s linear infinite;border:1px solid #8fc8ff21;border-top-color:#b8dcffa1}.core-orbit::before{position:absolute;top:14%;left:14%;width:5px;height:5px;border-radius:50%;background:#eed5a4;box-shadow:0 0 14px #e9c67d;content:""}.core-tag{position:absolute;display:flex;align-items:center;gap:12px;padding:11px 16px;border-radius:3px;font-size:11px;letter-spacing:.04em;border:1px solid #8fbcf253;background:#0c2858df;color:#e4efff;box-shadow:0 12px 30px #020e2f44}.core-tag b{font:11px/1.4 Consolas,monospace;font-weight:400;color:#e4c582}.core-tag.one{left:2%;top:28%}.core-tag.two{right:0;top:42%;border-color:#79c9e95c}.core-tag.two b{color:#a8e0f5}.core-tag.three{left:24%;bottom:18%}.art-note{position:absolute;font:9px/1.8 Consolas,monospace;letter-spacing:.15em;color:#a3bddb}.art-note.top{left:26%;top:13%}.art-note.bottom{right:16%;bottom:10%;color:#d0b77f}.hero-index{position:absolute;right:48px;font:8px/1.8 Consolas,monospace;letter-spacing:.2em;color:#91add1;bottom:50px}.hero-specs{position:relative;display:grid;grid-template-columns:1fr 1.4fr 1fr;gap:28px;max-width:500px;margin-top:38px;padding-top:23px;border-top:1px solid #b7d5ff36}.hero-specs div{display:flex;align-items:baseline;gap:9px}.hero-specs strong{color:#d7c39b;font:300 25px/1.3 var(--sans);white-space:nowrap}.hero-specs span{font-size:10px;white-space:nowrap;color:#a9bdd9}@keyframes orbit{to{transform:rotate(360deg)}}
.orientation{display:grid;grid-template-columns:repeat(3,1fr);border-bottom:1px solid var(--line);position:relative;z-index:3;margin-top:-24px;padding:0 28px;background:#fff;border:1px solid #e3eaf3;border-radius:12px;box-shadow:0 18px 45px #17356414}.orientation a{display:flex;align-items:center;gap:20px;padding:27px 26px 27px 0}.orientation a+a{padding-left:38px;border-left:1px solid var(--line)}.orientation .num{font:15px/1 Consolas,monospace;color:#5475a1}.orientation strong{font-size:13px;font-weight:400}.orientation small{display:block;margin-top:4px;font-size:10px;color:#65758a}.orientation .arrow{margin-left:auto;color:#6584ad}.orientation a:hover strong{color:#235ca6}
.edition-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.edition-card{position:relative;display:flex;flex-direction:column;min-width:0;padding:31px;border-radius:var(--radius);overflow:hidden;transition:border-color .25s,transform .25s;background:linear-gradient(145deg,#fff,#f6f9ff);border:1px solid #dbe5f2;border-top:3px solid #6b91c6;box-shadow:0 14px 35px #24446d0c}.edition-card::before{position:absolute;right:24px;top:-50px;width:160px;height:160px;border-radius:50%;content:"";border:1px solid #7099c91a;box-shadow:0 0 0 22px #7099c907,0 0 0 44px #7099c905}.edition-card:hover{transform:translateY(-5px);border-color:#7b9dcc;box-shadow:0 22px 42px #24446d1c}.edition-card:nth-child(2){background:linear-gradient(140deg,#fffaf0,#fffefa 70%);border-color:#e5d9bd;border-top-color:#c1a062}.edition-card:nth-child(3){background:linear-gradient(145deg,#eef8fc,#faffff 75%);border-color:#cce3ec;border-top-color:#5c9bad}.edition-card:nth-child(3)::before{border-color:#82bccb15;border:1px solid #73adbf20;box-shadow:0 0 0 22px #73adbf09,0 0 0 44px #73adbf06}.edition-top{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:28px}.edition-code{font:9px/1.5 Consolas,monospace;letter-spacing:.1em;color:#60728a}.edition-symbol{font:24px/1 Georgia,serif;color:#9c8354}.edition-card h3{font:500 27px/1.6 var(--serif);letter-spacing:.08em}.edition-count{display:flex;align-items:baseline;gap:10px;margin:17px 0 18px}.edition-count strong{font:300 44px/1 var(--sans);letter-spacing:-.04em;color:#38649b}.edition-count span{font-size:10px;letter-spacing:.1em;color:#63738a}.edition-card:nth-child(3) .edition-count strong{color:#286c7e}.edition-card p{font-size:12px;line-height:2}.edition-list{flex:1;list-style:none;padding:20px 0;margin:24px 0 5px;font-size:12px;border-top:1px solid #dce4ed;color:#52647b}.edition-list li{display:flex;gap:10px;padding-block:7px}.edition-list li::before{content:"+";color:#718aab}.edition-card .text-link{align-self:flex-start;margin-top:8px;font-size:12px}.badge{padding:3px 8px;border-radius:3px;font-size:10px;white-space:nowrap;border:1px solid #c4d3e5;color:#436287;background:#f0f5fb}.pending{display:block;margin-top:8px;font-size:12px;color:#63738a}
.split{display:grid;grid-template-columns:1fr 1fr;gap:78px;align-items:center}.manifesto{position:relative;min-height:345px;padding:54px 45px;border-radius:var(--radius);overflow:hidden;background:radial-gradient(ellipse at 90% 15%,#4277bc60,transparent 65%),linear-gradient(135deg,#193761,#0d2446);border:1px solid #4e709c;box-shadow:0 24px 45px #23477529}.manifesto::after{position:absolute;right:-15px;bottom:-115px;width:270px;height:270px;border-radius:50%;content:"";border:1px solid #aad0fa40;box-shadow:0 0 0 24px #80b7f315,0 0 0 48px #80b7f309}.manifesto .big-character{position:absolute;top:32px;right:32px;font:100px/1 var(--serif);color:#b4d4ff20}.manifesto blockquote{position:relative;z-index:1;margin:32px 0;font:300 29px/1.9 var(--serif);color:#f1f5fd}.manifesto small{font:9px/1.8 Consolas,monospace;letter-spacing:.14em;color:#c9b88c}.stack>p{margin-top:22px;font-size:14px;line-height:2}.stack .text-link{margin-top:28px}.path-list{margin-top:10px;border-top:1px solid var(--line)}.path-row{display:flex;align-items:center;gap:24px;padding:27px 0;border-bottom:1px solid var(--line)}.path-row .step{font:13px/1 Consolas,monospace;color:#85672f}.path-row h3{margin-bottom:7px;font-size:15px}.path-row p{font-size:12px}.path-row .arrow{margin-left:auto;color:#7d98b9}
.learning-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:24px}.learn-feature,.learn-secondary{position:relative;min-height:270px;padding:38px;border-radius:var(--radius);overflow:hidden;background:linear-gradient(140deg,#ffffff,#f6f8ff);border:1px solid #dfe3f1;box-shadow:0 12px 32px #343c790b}.learn-feature{background:radial-gradient(ellipse at 90% 100%,#b2c9f62e,transparent 65%),#ffffff;border-color:#cfdcf2}.learn-feature h3,.learn-secondary h3{margin-bottom:16px;font:500 25px/1.6 var(--serif)}.learn-feature p,.learn-secondary p{max-width:360px;font-size:13px}.learn-feature .text-link,.learn-secondary .text-link{align-self:flex-start;margin-top:30px}.learn-secondary{display:flex;flex-direction:column;justify-content:space-between}.learn-feature .book-lines{position:absolute;right:37px;bottom:30px;width:67px;height:92px;transform:rotate(-14deg);border-radius:3px;border:1px solid #7093c577;background:repeating-linear-gradient(0deg,transparent 0 13px,#7197cb22 13px 14px);box-shadow:9px 6px 0 #f6f8ff,10px 7px 0 #7093c577}.cta{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:50px;border-radius:var(--radius);background:radial-gradient(ellipse at 80% 50%,#3d6bae65,transparent 65%),linear-gradient(115deg,#153b6a,#0d2346);color:#f4f7ff;border:1px solid #486b99;box-shadow:0 22px 45px #193c6324}.cta h2{font:400 29px/1.65 var(--serif);letter-spacing:.04em}.cta p{margin-top:14px;font-size:13px;color:#b5cae6}.cta .button{white-space:nowrap;flex-shrink:0}
.site-footer{padding:50px 0 24px;background:linear-gradient(125deg,#07172f,#0d2443);color:#eaf1fc;--muted:#a9bad1;--gold:#e5c78c;border-top:1px solid #2d4565}.footer-main{display:flex;justify-content:space-between;gap:40px;padding-bottom:40px}.footer-main p{margin-top:18px;font-size:12px}.footer-links{display:flex;gap:78px}.footer-links strong{display:block;margin-bottom:15px;color:#d9c69f;font-size:12px;font-weight:400}.footer-links a{display:block;padding-block:4px;font-size:12px;color:#acbed6}.footer-links a:hover{color:#e3c78f}.footer-bottom{display:flex;justify-content:space-between;padding-top:21px;font-size:10px;letter-spacing:.03em;color:#a1b4cf;border-top:1px solid #a4c5ef29}.footer-bottom a{text-decoration:underline;text-underline-offset:3px}
.breadcrumb{display:flex;gap:10px;padding-top:26px;font-size:11px;color:#b1c5df}.breadcrumb a{text-decoration:underline;text-underline-offset:3px}.page-intro{max-width:840px;padding:50px 0 54px}.page-intro .eyebrow{margin-bottom:18px}.page-intro h1{font-family:var(--serif);letter-spacing:.04em;text-wrap:balance}.page-intro p{max-width:680px;margin-top:22px;line-height:2;font-size:14px}.page-intro .badge{display:inline-block;margin-top:20px}.border-top{border-top:1px solid var(--line)}.intro-band{position:relative;overflow:hidden;background:radial-gradient(ellipse at 85% 25%,#3567ac65,transparent 50%),linear-gradient(110deg,#0b2345,#153861);color:#f2f6fd;--muted:#bed0e7;--gold:#e6c98d;border-bottom:1px solid #5377a24d}.intro-band::after{position:absolute;right:5%;top:-100px;width:400px;height:400px;border-radius:50%;pointer-events:none;content:"";border:1px solid #9cc9f92e;box-shadow:0 0 0 35px #8ebcf411,0 0 0 70px #8ebcf408}.intro-band .wrap{position:relative;z-index:1}.notice{padding:18px 22px;border-radius:3px;font-size:12px;line-height:1.9;background:#f7f4ec;border:1px solid #e7dfc9;border-left:2px solid #b39760;color:#655d4c}.notice a{text-decoration:underline;text-underline-offset:3px}.empty{padding:60px 28px;margin-block:24px;border:1px solid var(--line);border-radius:var(--radius);text-align:center;background:radial-gradient(ellipse at 50% 0,#dae7fb88,transparent 65%),#ffffff;box-shadow:0 12px 30px #25436508}.empty-symbol{margin-bottom:16px;font:40px/1.5 var(--serif);color:#7697bf}.empty h2{margin-bottom:14px;font:400 24px/1.6 var(--serif)}.empty p{max-width:540px;margin:0 auto 24px;font-size:13px}
.compare{display:grid;grid-template-columns:170px repeat(3,minmax(0,1fr));margin:48px 0;border-top:1px solid var(--line);border-left:1px solid var(--line);font-size:13px}.compare-row{display:contents}.compare-row>div{min-width:0;padding:23px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);color:#465d78;background:#ffffff}.compare .compare-label{font-size:12px;color:#3a5980;background:#eaf1fb}.compare h3{font:500 21px/1.6 var(--serif);color:#223f64}.compare .cell-pending{font-size:12px;color:#66748a}.detail-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:75px;align-items:start}.detail-aside{position:sticky;top:112px;padding:30px;border-radius:var(--radius);background:linear-gradient(140deg,#ffffff,#edf4fd);border:1px solid #ccdcef;box-shadow:0 15px 35px #2446720c}.detail-aside h2{margin-bottom:18px;font:400 23px/1.6 var(--serif)}.detail-aside p{margin-bottom:24px;font-size:13px}.detail-aside .button{width:100%}.prose{color:#334a65}.prose h2{margin:42px 0 20px;font:500 25px/1.7 var(--serif);color:#203b5d}.prose h2:first-child{margin-top:0}.prose h3{margin:28px 0 12px;font-size:17px;color:#3a597e}.prose p{margin:14px 0;line-height:2.1;color:#526279}.prose li{padding-block:6px;color:#526279}.prose ul,.prose ol{padding-left:22px}.prose a{text-decoration:underline;text-underline-offset:4px;color:#315f97}.prose .notice{margin-block:24px}.expert-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 24px;list-style:none;padding-left:0!important}.expert-list li{padding:10px 0!important;border-bottom:1px solid var(--line);font-size:13px}.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-top:42px}.fact{padding-top:24px;border-top:1px solid #99b3d5}.fact h3{margin-bottom:14px;font-size:16px;color:#2a4b73}.fact p{font-size:13px}.faq{border-bottom:1px solid var(--line)}.faq details{padding:22px 0;border-top:1px solid var(--line)}.faq summary{display:flex;justify-content:space-between;gap:20px;min-height:30px;cursor:pointer;list-style:none;font-size:14px;color:#2a4362}.faq summary::after{content:"+";color:#5d80ac}.faq details[open] summary::after{content:"−"}.faq details p{padding-top:16px;font-size:13px}
.filters{display:flex;justify-content:space-between;align-items:end;gap:22px;margin:26px 0 28px}.chips{display:flex;gap:8px;flex-wrap:wrap}.chip{min-height:42px;padding:8px 18px;border-radius:3px;font-size:12px;border:1px solid #c7d5e6;background:#fff;color:#47617e}.chip:hover{border-color:#7097c7}.chip[aria-pressed=true]{border-color:#315e99;background:#315e99;color:#ffffff}.search-field{width:min(100%,300px)}.search-field label,.select-field label{display:block;margin-bottom:6px;font-size:11px;color:#61718a}.search-field input,.select-field select{width:100%;min-height:44px;padding:9px 14px;border-radius:3px;border:1px solid #b8cbe1;background:#fff;color:#243d5c}.search-field input::placeholder{color:#6e7d91}.results-status{margin-block:18px;font-size:11px;color:#65758a}.resource-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.resource-card{display:flex;flex-direction:column;min-width:0;padding:28px;border-radius:var(--radius);transition:border-color .2s;background:linear-gradient(145deg,#fff,#f8faff);border:1px solid #d7e2ef;box-shadow:0 12px 28px #24446d09}.resource-card:hover{border-color:#81a3cc}.resource-card .resource-meta{display:flex;justify-content:space-between;gap:10px;margin-bottom:25px;font-size:10px;color:#63738a}.resource-card h2{font-size:18px;letter-spacing:.015em;line-height:1.7}.resource-card p{flex:1;margin:15px 0 26px;font-size:12px}.resource-card .text-link{align-self:flex-start;font-size:12px}.training-card{padding:0;overflow:hidden}.training-card .resource-content{padding:24px}.training-card .poster{position:relative;display:grid;place-items:center;aspect-ratio:16/9;font:24px var(--serif);background:linear-gradient(140deg,#dce9fa,#eef3ff);color:#547ba9}.training-card .poster img{width:100%;height:100%;object-fit:cover}.training-card .poster .duration{position:absolute;right:12px;bottom:10px;padding:3px 7px;border-radius:3px;font:10px var(--sans);background:#16365f;color:#fff}.video-stage{position:relative;display:grid;place-items:center;aspect-ratio:16/9;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:radial-gradient(ellipse at center,#284f7c,#0b2343)}.video-stage>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.35}.video-stage .play-video{position:relative;display:flex;align-items:center;gap:14px;min-height:54px;padding:14px 25px;border:1px solid #d0b174;border-radius:3px;background:#d5b778;color:#19160e}.video-stage iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.video-note{margin:16px 0;font-size:11px}.lesson-list{list-style:none;padding:0;margin:24px 0}.lesson-list a{display:flex;align-items:center;gap:15px;padding:15px 0;border-bottom:1px solid var(--line);font-size:12px}.lesson-list a[aria-current=page]{font-weight:600;color:#315e99}.lesson-list .badge{margin-left:auto}
.contact-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:64px}.contact-panel{padding:38px;border-radius:var(--radius);background:radial-gradient(ellipse at 0 0,#dae9fd55,transparent 70%),#ffffff;border:1px solid #ccdbed;box-shadow:0 18px 40px #23436b0d}.contact-panel h2{margin-bottom:22px;font:400 25px/1.6 var(--serif)}.contact-item{padding:23px 0;border-bottom:1px solid var(--line)}.contact-item:last-child{border-bottom:0}.contact-item dt{margin-bottom:9px;font-size:11px;color:#617794}.contact-item dd{display:flex;align-items:center;justify-content:space-between;gap:18px;margin:0;overflow-wrap:anywhere}.contact-item dd a{text-decoration:underline;text-underline-offset:4px;color:#295a96}.copy-wechat{padding:6px 12px;min-height:40px;border-radius:3px;font-size:12px;white-space:nowrap;border:1px solid #9db7d8;background:#edf4fd;color:#315e94}.qr-code{width:180px;height:180px;margin:25px 0;object-fit:contain}.checklist{list-style:none;padding:0;margin-top:24px}.checklist li{display:flex;gap:18px;padding:19px 0;border-bottom:1px solid var(--line);font-size:13px;color:#576b84}.checklist li::before{content:"↗";color:#4f7cb5}.article-meta{display:flex;gap:20px;margin-top:22px;font-size:11px;color:#67758a}.error-page{padding:95px 0;text-align:center}.error-page .error-code{margin-bottom:25px;font:200 110px/1 var(--sans);color:#7f9fc6}.error-page h1{margin-bottom:22px;font:400 32px/1.6 var(--serif)}.error-page .buttons{justify-content:center;margin-top:30px}.space-top{margin-top:34px}.zero-margin{margin:0}.copy-status{min-height:24px;margin-top:12px;font-size:12px;color:#466282}.draft-label{margin-top:12px;font-size:11px;color:#80602d}

/* Distinct section surfaces provide a light/dark reading rhythm. */
.hero .button.outline{color:#e8f1ff;border-color:#7c9bc478;background:#a5ccff09}
.hero .button.outline:hover{background:#a5ccff1a;border-color:#a6c8f2}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(ellipse at 77% 36%,#608de314,transparent 55%);}
.edition-card:nth-child(2) .edition-count strong{color:#8d682d}
.home-products{background:linear-gradient(180deg,#f7faff,#f0f5fc);padding-top:84px}
.section.home-brand{background:linear-gradient(120deg,#e2ecfa,#edf4fd);border-block:1px solid #d7e4f5}
.home-path{background:#fcfaf6}
.home-path .path-list{border-top:0}
.home-path .path-row{padding:22px 24px;margin-bottom:14px;background:#fff;border:1px solid #e8e3d9;border-radius:10px;box-shadow:0 8px 22px #3d342508}
.home-path .path-row .step{display:grid;place-items:center;width:34px;height:34px;flex-shrink:0;background:#f5f0e5;border-radius:50%;font-size:11px}
.section.home-learning{background:linear-gradient(130deg,#eeeffb,#f6f4fc);border-block:1px solid #e3e2f1}
.home-learning .eyebrow{color:#625280}
.home-learning .eyebrow::before{background:#81709d}
.home-learning .learn-secondary{background:linear-gradient(135deg,#fff,#f4f0fc)}
.cta-section{background:#eef3f9}
@media(max-width:850px){.home-path .path-row{padding:22px 18px}}
@media(max-width:600px){.orientation{margin-top:-14px;padding-inline:22px}.hero-index{display:none}.hero-art{margin-bottom:40px}.home-products{padding-top:54px}.home-path .path-row{gap:14px;padding:20px 16px}}

@media(min-width:1600px){.hero-grid{min-height:700px}}
@media(max-width:1100px){.wrap{width:calc(100% - 64px)}.site-nav{gap:20px}.brand strong{font-size:19px}.hero-grid{min-height:620px}.hero-art{width:110%}.hero h1{font-size:47px}.core-tag{padding:9px 12px;gap:8px;font-size:10px}.hero-specs{gap:15px}.hero-specs strong{font-size:22px}.hero-specs span{font-size:9px}.edition-card{padding:25px}.split{gap:42px}.detail-layout{gap:42px;grid-template-columns:minmax(0,1fr) 270px}.compare{grid-template-columns:130px repeat(3,minmax(0,1fr))}.compare-row>div{padding:18px}.footer-links{gap:44px}}
@media(max-width:850px){.header-inner{height:72px}.menu-toggle{display:block}.site-nav{display:none}.site-nav.is-open{position:absolute;inset:100% 0 auto;display:flex;flex-direction:column;align-items:stretch;gap:0;max-height:calc(100dvh - 72px);padding:22px 32px 30px;border-bottom:1px solid #6a5837;overflow-y:auto;background:#0b2144f5;backdrop-filter:blur(24px)}.site-nav>a{padding:15px 0;border-bottom:1px solid var(--line);font-size:16px}.site-nav>a[aria-current=page]::after{display:none}.site-nav .nav-contact{margin-top:22px;padding:12px 20px;text-align:center}.hero-grid{min-height:590px;grid-template-columns:1.1fr .9fr;gap:0}.hero h1{font-size:39px}.hero-copy{padding-block:55px}.hero-copy>p{font-size:13px}.hero .eyebrow{font-size:9px;letter-spacing:.11em}.hero-art{width:125%}.core-tag.one{left:8%;top:27%}.core-tag.two{right:4%;top:58%}.core-tag.three{left:14%;bottom:13%}.core-tag{padding:8px 10px;font-size:9px}.hero .button{padding:11px 17px;gap:15px}.hero-copy .buttons{gap:10px}.hero-specs{gap:12px;margin-top:30px}.hero-specs div{flex-direction:column;gap:4px}.hero-specs strong{font-size:22px}.hero-specs span{font-size:9px}.orientation a{gap:12px;padding:24px 18px 24px 0}.orientation a+a{padding-left:20px}.orientation strong{font-size:12px}.orientation small{font-size:9px}.section{padding-block:68px}.edition-grid{gap:14px}.edition-card{padding:21px}.edition-card h3{font-size:24px}.edition-code{font-size:8px}.edition-symbol{font-size:21px}.edition-count strong{font-size:38px}.edition-list{font-size:11px}.split{gap:32px}.manifesto{min-height:310px;padding:32px}.manifesto blockquote{font-size:23px}.resource-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.detail-layout{grid-template-columns:1fr;gap:36px}.detail-aside{position:static}.contact-grid{gap:30px}.learn-feature,.learn-secondary{padding:28px}.learn-feature .book-lines{display:none}.cta{padding:35px}.cta h2{font-size:25px}.compare{grid-template-columns:105px repeat(3,minmax(0,1fr))}.compare-row>div{padding:15px 12px}.compare h3{font-size:19px}}
@media(max-width:600px){.wrap,.narrow{width:calc(100% - 40px)}.draft-bar{padding-inline:8px;font-size:10px;letter-spacing:0}.draft-bar a{margin-left:7px}.brand{gap:10px}.brand-logo{width:44px;height:44px}.brand strong{font-size:18px}.brand small{font-size:6px}.header-inner{height:68px}.site-nav.is-open{max-height:calc(100dvh - 68px);padding-inline:24px}.hero-grid{display:flex;flex-direction:column;gap:0;min-height:0}.hero-copy{width:100%;padding:45px 0 0}.hero h1{font-size:clamp(31px,9.4vw,43px);line-height:1.55;letter-spacing:.025em}.hero .eyebrow{margin-bottom:22px;font-size:8px;letter-spacing:.12em}.hero-copy>p{max-width:360px;margin:21px 0 26px;font-size:13px}.hero .button{padding:11px 19px}.hero-caption{margin-top:22px;font-size:9px}.hero-specs{max-width:380px;margin-top:26px;padding-top:20px;gap:15px}.hero-specs div{gap:7px}.hero-specs strong{font-size:23px}.hero-specs span{font-size:9px}.hero-art{width:min(112%,420px);aspect-ratio:1.1;margin:4px 0 30px;align-self:center}.hero-art>img{inset:-6% 0 0}.hero-art::before{inset:10% 20% 30%}.core-orbit{inset:12% 20% 22%}.core-tag{padding:9px 12px;font-size:10px}.core-tag.one{top:25%;left:4%}.core-tag.two{top:49%;right:2%}.core-tag.three{bottom:13%;left:15%}.art-note.top{top:5%;left:25%;font-size:8px}.art-note.bottom{bottom:5%;right:8%;font-size:8px}.hero-index{right:20px;bottom:13px;font-size:7px}.orientation{grid-template-columns:1fr}.orientation a,.orientation a+a{padding:19px 0;border-left:0;border-bottom:1px solid var(--line)}.orientation a:last-child{border-bottom:0}.orientation strong{font-size:13px}.orientation .num{width:28px;font-size:12px}.section{padding-block:54px}.section-head{flex-direction:column;align-items:start;gap:20px;margin-bottom:30px}.section-head p{max-width:none;font-size:13px}.section-head .text-link{font-size:12px}.eyebrow{margin-bottom:15px;font-size:9px}h2{font-size:27px}.edition-grid{grid-template-columns:1fr;gap:20px}.edition-card{padding:28px}.edition-top{margin-bottom:23px}.edition-code{font-size:9px}.edition-card h3{font-size:28px}.edition-count{margin:17px 0 20px}.edition-count strong{font-size:44px}.edition-card p{font-size:13px}.edition-list{margin-top:22px;padding:18px 0;font-size:12px}.edition-card .text-link{font-size:13px}.split{grid-template-columns:1fr;gap:35px}.manifesto{min-height:290px;padding:35px}.manifesto blockquote{font-size:25px}.stack>p{font-size:13px}.path-row{padding:23px 0;gap:20px}.learning-grid{grid-template-columns:1fr}.learn-feature,.learn-secondary{min-height:250px;padding:30px}.learn-feature h3,.learn-secondary h3{font-size:24px}.cta{display:block;padding:31px 26px}.cta h2{font-size:24px}.cta p{font-size:12px}.cta .button{margin-top:27px}.footer-main{flex-direction:column;gap:32px}.footer-links{justify-content:space-between;gap:20px}.footer-bottom{display:block;line-height:2}.footer-bottom>a{display:block;margin-top:8px}.page-intro{padding:36px 0 40px}.page-intro h1{font-size:32px}.page-intro p{margin-top:20px;font-size:13px}.breadcrumb{padding-top:20px;flex-wrap:wrap;font-size:10px}.intro-band::after{right:-160px}.compare{grid-template-columns:repeat(3,minmax(0,1fr));margin-block:34px;font-size:11px}.compare .compare-label{grid-column:1/-1;padding:11px 14px;font-size:11px}.compare-row>div{padding:16px 10px;overflow-wrap:anywhere}.compare h3{font-size:19px}.compare .cell-pending{font-size:10px}.compare .text-link{gap:6px;font-size:11px;white-space:normal}.facts{grid-template-columns:1fr;gap:28px}.filters{flex-direction:column;align-items:stretch;gap:20px}.search-field{width:100%}.chip{padding-inline:16px}.resource-grid{grid-template-columns:1fr}.resource-card{padding:26px}.training-card{padding:0}.resource-card h2{font-size:20px}.resource-card p{font-size:13px}.contact-grid{grid-template-columns:1fr;gap:38px}.contact-panel{padding:26px}.empty{padding:42px 22px}.empty h2{font-size:23px}.empty p{font-size:12px}.notice{padding:16px 18px;font-size:11px}.detail-aside{padding:26px}.prose h2{font-size:23px}.prose p,.prose li{font-size:13px}.expert-list{grid-template-columns:1fr}.video-stage .play-video{min-height:44px;padding:10px 15px;font-size:12px}.article-meta{gap:12px;flex-wrap:wrap}.error-page{padding:70px 0}.error-page .error-code{font-size:90px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}