:root{color-scheme:dark;--bg:#080d12;--surface:#101820;--line:#26313b;--text:#f2f5f7;--muted:#9ba9b7;--cyan:#00d4e9}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 Arial,Helvetica,sans-serif}a{color:inherit;text-decoration:none}button{font:inherit}a,button,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--cyan);outline-offset:6px}::selection{background:var(--cyan);color:var(--bg)}.cyan{color:var(--cyan)}.muted{color:var(--muted)}.skip{position:fixed;top:-70px;background:var(--cyan);color:#000;padding:12px;z-index:30}.skip:focus{top:0}header{height:88px;border-bottom:1px solid var(--line);background:#080d12f2;position:sticky;top:0;z-index:10;backdrop-filter:blur(20px)}.header-inner{max-width:1376px;margin:auto;padding:0 48px;height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:flex;align-items:center;gap:10px;font-size:27px;font-weight:800;letter-spacing:-1.2px}.brand-icon{display:block;width:43px;height:43px;flex:none;background-image:url('assets/brand.png');background-size:238px 95.2px;background-position:-97px -1px;border-radius:50%}nav{display:flex;gap:32px;height:100%;align-items:center}nav a{height:100%;display:flex;align-items:center;position:relative;font-size:14px;color:#b3bdc7}nav a:hover,nav a.active{color:white}nav a.active:after{content:'';position:absolute;height:2px;background:var(--cyan);bottom:0;left:0;right:0}.header-link{font-size:14px;border:1px solid #36424e;border-radius:5px;padding:9px 15px}.header-link span{margin-left:15px;color:var(--cyan)}.menu{display:none}main,footer{max-width:1376px;margin:auto}.hero{padding:40px 48px 0}.hero-top{display:flex;justify-content:space-between;margin-bottom:42px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:1.8px;color:var(--cyan)}.edition{font-size:11px;letter-spacing:1.6px;color:#7f8d99}.hero-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:55px;align-items:center}.issue{font-size:11px;letter-spacing:2px;color:#b0bdc8;display:flex;align-items:center;gap:12px}.issue span{height:2px;width:23px;background:var(--cyan)}h1{font-size:clamp(44px,4.45vw,64px);line-height:1.09;letter-spacing:-3.3px;margin:23px 0}h1 em{font-style:normal;color:var(--cyan)}.hero-copy>p{color:#a6b3bf;font-size:17px;line-height:1.75;max-width:385px;margin-bottom:28px}.button{display:inline-flex;align-items:center;justify-content:center;gap:28px;padding:13px 20px;font-size:14px;font-weight:bold;border-radius:4px;transition:background .2s,transform .2s}.button:hover{transform:translateY(-2px)}.primary{background:var(--cyan);color:#031014}.primary:hover{background:#63eaff}.secondary{border:1px solid #3e505e}.secondary:hover{background:#1d303e}.hero-foot{display:flex;align-items:center;gap:13px;color:#81929f;font-size:12px;margin-top:35px;letter-spacing:.8px}.line{width:28px;height:1px;background:#41505d}.hero-feature{display:block;min-width:0}.image-wrap{position:relative;border:1px solid #1f4658;box-shadow:0 0 90px #00a5df0e;border-radius:6px;overflow:hidden}.image-wrap img{display:block;width:100%;height:auto;transition:transform .6s}.hero-feature:hover img{transform:scale(1.025)}.feature-tag{position:absolute;top:17px;left:17px;padding:3px 9px;background:#081019dd;color:#e5fbff;border:1px solid #386879;font-size:10px;letter-spacing:1.4px}.image-arrow{position:absolute;right:16px;bottom:16px;background:var(--cyan);border-radius:50%;height:40px;width:40px;display:grid;place-items:center;color:#031014;font-size:24px}.feature-caption{display:flex;justify-content:space-between;gap:20px;padding-top:21px}.feature-caption .eyebrow{font-size:10px}.feature-caption h2{font-size:25px;line-height:1.35;letter-spacing:-.6px;margin:9px 0 0}.feature-number{color:#34424e;font-size:49px;line-height:1.2;font-weight:700;letter-spacing:-3px}.brand-line{display:flex;justify-content:space-between;gap:20px;margin-top:48px;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);color:#8495a4;font-size:10px;letter-spacing:2px}.section{padding:72px 48px 0}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:28px}.section-heading h2{font-size:32px;line-height:1.2;letter-spacing:-1px;margin:13px 0 0}.section-count{font-size:12px;color:#728391;letter-spacing:2px}.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.topic{padding:25px 26px;background:linear-gradient(120deg,#131c25,#0c131a);border:1px solid var(--line);border-radius:5px;transition:border-color .25s,transform .25s}.topic:hover{border-color:#00a8bd;transform:translateY(-4px)}.topic-top{display:flex;justify-content:space-between;align-items:center;color:var(--cyan)}.topic-top svg{width:31px;height:31px}.topic-top>span{font-size:12px;color:#667887}.topic h3{font-size:22px;letter-spacing:-.5px;margin:21px 0 8px}.topic p{font-size:14px;color:var(--muted);max-width:300px;line-height:1.7;margin:0 0 26px}.text-link{display:flex;align-items:center;justify-content:space-between;gap:24px;font-size:14px;font-weight:700}.text-link b{color:var(--cyan);font-size:21px}.small-note{font-size:12px;color:#80919f}.guide{display:grid;grid-template-columns:.8fr 1.2fr;border:1px solid var(--line);border-radius:6px;overflow:hidden}.guide-intro{padding:40px;background:radial-gradient(ellipse at 0 100%,#003a4b55,transparent 70%),#101a23;display:flex;align-items:start;flex-direction:column}.guide-intro h2{font-size:35px;line-height:1.2;letter-spacing:-1.4px;margin:26px 0 15px}.guide-intro p{font-size:15px;color:#9eafbd;margin-bottom:26px}.guide-label{font-size:10px;letter-spacing:1.7px;color:#6d8596;margin-top:auto;padding-top:42px}.guide-body{padding:36px 40px;background:#0b1219}.guide-body h3{font-size:21px;letter-spacing:-.3px;margin:0 0 12px}.guide-body>p{font-size:15px;color:#a0afbc}.ram-options{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:26px 0}.ram-options>div{border-top:2px solid #315369;padding-top:13px}.ram-options strong{font-size:33px;font-weight:500;color:#e7faff;letter-spacing:-1.5px}.ram-options small{font-size:13px;letter-spacing:0;color:var(--cyan)}.ram-options p{font-size:12px;line-height:1.6;color:#8b9fab}details{border-top:1px solid var(--line)}summary{list-style:none;cursor:pointer;padding:17px 0;display:flex;justify-content:space-between;gap:15px;font-size:14px;font-weight:600}summary::-webkit-details-marker{display:none}summary span{color:var(--cyan)}details[open] summary span{transform:rotate(45deg)}details p{font-size:14px;color:var(--muted);padding-bottom:12px;margin-top:0}.perspective-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:35px}.perspective-grid article{border-top:1px solid #3b4a55;padding-top:22px;scroll-margin-top:115px}.perspective-grid .eyebrow{font-size:10px}.perspective-grid h3{font-size:22px;line-height:1.35;letter-spacing:-.5px;margin:14px 0}.perspective-grid p{font-size:14px;color:var(--muted);line-height:1.8}.about{margin:74px 48px 0;display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:45px 0;gap:50px;align-items:center}.about-art{height:290px;background-image:url('assets/brand.png');background-size:auto 410px;background-position:26% bottom;border-radius:4px;border:1px solid #213d4e}.about-content h2{font-size:33px;line-height:1.2;letter-spacing:-1px;margin:19px 0}.about-content p{color:var(--muted);font-size:15px}.about-content .text-link{display:inline-flex;color:white}footer{padding:42px 48px 24px}.footer-top{display:flex;align-items:center;justify-content:space-between;gap:20px}.footer-top .brand{font-size:22px}.footer-top .brand-icon{width:34px;height:34px;background-size:190px 76px;background-position:-78px 0}.footer-top p{font-size:12px;letter-spacing:1.3px;color:#91a0ac}.footer-top>a:last-child{font-size:12px;color:#aab7c0}.footer-bottom{margin-top:35px;padding-top:22px;border-top:1px solid #18232d;display:flex;justify-content:space-between;color:#607583;font-size:11px;letter-spacing:1px}@media(min-width:1500px){.hero{padding-top:50px}.hero-grid{gap:65px}}@media(max-width:1050px){.header-inner{padding:0 28px;gap:20px}nav{gap:20px}.header-link{display:none}.hero,.section{padding-left:28px;padding-right:28px}.hero-grid{gap:30px}h1{letter-spacing:-2px}.feature-caption h2{font-size:22px}.guide-intro,.guide-body{padding:28px}.guide-intro h2{font-size:30px}.about{margin-left:28px;margin-right:28px;gap:30px}.edition{font-size:9px}.topic{padding:22px}.section-heading h2{font-size:28px}.small-note{display:none}}@media(max-width:720px){header{height:72px}.header-inner{padding:0 22px}.brand{font-size:25px}.menu{display:block;border:1px solid #33414c;background:none;color:var(--text);border-radius:4px;font-size:21px;line-height:1;padding:9px 12px}nav{display:none;position:absolute;top:71px;left:0;right:0;height:auto;background:#101922;padding:12px 24px 20px;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0}nav.open{display:flex}nav a{padding:12px 0}nav a.active:after{display:none}.hero{padding:26px 22px 0}.hero-top{margin-bottom:31px}.edition{display:none}.hero-grid{grid-template-columns:1fr;gap:35px}.hero-copy h1{font-size:clamp(41px,9vw,62px);letter-spacing:-2px}.hero-copy>p{max-width:450px;font-size:16px}.hero-foot{margin-top:24px}.hero-feature{margin-top:3px}.feature-caption h2{font-size:24px}.feature-number{font-size:44px}.brand-line{margin-top:28px;justify-content:center;font-size:9px;letter-spacing:1.3px;flex-wrap:wrap;gap:6px 19px}.brand-line span:last-child{display:none}.section{padding:48px 22px 0}.section-heading{align-items:start}.section-heading h2{font-size:28px}.section-count{display:none}.topic-grid{grid-template-columns:1fr;gap:12px}.topic{padding:22px}.topic h3{margin-top:14px}.topic p{max-width:none;margin-bottom:17px}.topic-top svg{width:28px;height:28px}.topic-top{float:right;gap:18px}.topic .text-link{border-top:1px solid #22303c;padding-top:12px}.guide{grid-template-columns:1fr}.guide-intro{padding:28px}.guide-intro h2{font-size:34px}.guide-label{padding-top:26px}.guide-body{padding:27px 24px}.ram-options{gap:12px}.ram-options p{font-size:12px}.perspective-grid{grid-template-columns:1fr;gap:22px}.perspective-grid p{margin-bottom:0;font-size:15px}.about{margin:48px 22px 0;grid-template-columns:1fr;gap:27px;padding:32px 0}.about-art{height:220px;background-size:auto 330px}.about-content h2{font-size:32px}.about-content p{font-size:16px}footer{padding:30px 22px 22px}.footer-top{flex-wrap:wrap}.footer-top p{width:100%;order:3;margin:0}.footer-bottom{font-size:9px;gap:12px}.eyebrow{font-size:11px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}
/* Subtle motion keeps the editorial content in the foreground. */
header{transition:background .3s,box-shadow .3s,border-color .3s}header.scrolled{background:#080d12fa;border-bottom-color:#304653;box-shadow:0 8px 32px #0005}nav a{transition:color .2s}nav a:after{content:'';position:absolute;height:2px;background:var(--cyan);bottom:0;left:0;right:0;transform:scaleX(0);transform-origin:left;transition:transform .25s}nav a.active:after{transform:scaleX(1)}.button span,.text-link b,.image-arrow{transition:transform .25s}.button:hover span,.text-link:hover b{transform:translate(2px,-2px)}.hero-feature:hover .image-arrow{transform:rotate(8deg)}summary{transition:color .2s}summary:hover,details.is-expanded summary{color:var(--cyan)}summary span{display:inline-block;transition:transform .25s}details[open] summary span{transform:none}details.is-expanded summary span{transform:rotate(45deg)}.guide:focus,.perspective-grid article:focus{outline:1px solid transparent;outline-offset:6px}.section:focus,.hero:focus,.about:focus,main:focus{outline:none}@media(prefers-reduced-motion:reduce){header,summary,summary span,nav a,nav a:after{transition:none!important}}

/* Opaque sticky surface, including the area above the web viewport in iOS. */
html{background:var(--bg)}
header,header.scrolled{background:var(--bg);backdrop-filter:none;-webkit-backdrop-filter:none;isolation:isolate;overflow:visible;height:calc(88px + env(safe-area-inset-top,0px));padding-top:env(safe-area-inset-top,0px)}
header::before{content:"";position:absolute;left:0;right:0;bottom:100%;height:100vh;background:var(--bg);pointer-events:none}
.header-inner{padding-left:max(48px,env(safe-area-inset-left,0px));padding-right:max(48px,env(safe-area-inset-right,0px))}
@media(max-width:1050px){.header-inner{padding-left:max(28px,env(safe-area-inset-left,0px));padding-right:max(28px,env(safe-area-inset-right,0px))}}
@media(max-width:720px){header{height:calc(72px + env(safe-area-inset-top,0px))}.header-inner{padding-left:max(22px,env(safe-area-inset-left,0px));padding-right:max(22px,env(safe-area-inset-right,0px))}nav{top:100%}}
html{scroll-padding-top:calc(100px + env(safe-area-inset-top,0px))}
/* Preferences and a complete, high-contrast light palette. */
.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}
.preferences{display:flex;align-items:center;gap:8px;flex-shrink:0}.language-label{display:flex}#language,.theme-toggle{height:40px;border:1px solid var(--line);border-radius:5px;background:var(--surface);color:var(--text);font:14px Arial,Helvetica,sans-serif}#language{max-width:135px;padding:0 8px;cursor:pointer}.theme-toggle{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:0 10px;cursor:pointer}.theme-icon{font-size:20px;line-height:1}.theme-label{font-size:13px}select:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}.header-inner{gap:20px}header .header-link{display:none}nav{gap:22px}.localized-cover,.localized-brand{display:none}html:not([data-language="de"])[data-language] .image-wrap>img{visibility:hidden}html:not([data-language="de"])[data-language] .localized-cover{display:flex;position:absolute;inset:0;flex-direction:column;background:#08131c;color:#effcff}html:not([data-language="de"])[data-language] .feature-tag{display:none}.localized-cover-title{height:50%;padding:12px 22px;display:flex;flex-direction:column;justify-content:center;gap:3px}.localized-cover-title>span:first-child{font-size:14px;font-weight:bold}.localized-cover-title .cyan{color:#00d4e9}.localized-cover-title strong{font-size:clamp(20px,2.5vw,36px);line-height:1.1;letter-spacing:-.6px}.localized-cover-title>span:last-child{font-size:15px;color:#83d6e7}.ram-crop{height:50%;overflow:hidden;position:relative}.ram-crop img{position:absolute;bottom:0;left:0;width:100%;height:auto}html:not([data-language="de"])[data-language] .about-art{background-image:none;background-color:var(--surface);display:grid;place-items:center}html:not([data-language="de"])[data-language] .localized-brand{display:flex;flex-direction:column;align-items:center;gap:10px;padding:24px}.localized-brand .brand-icon{width:86px;height:86px;background-size:476px 190.4px;background-position:-194px -2px}.localized-brand strong{font-size:34px;letter-spacing:-1px}.localized-tagline{font-size:14px;text-align:center;color:var(--muted)}.hero-copy,.guide-intro,.guide-body,.topic,.about-content{min-width:0}h1,h2,h3,.button,.text-link{overflow-wrap:break-word}:lang(zh){line-break:auto}:lang(zh) h1,:lang(zh) h2,:lang(zh) h3{letter-spacing:0}:lang(zh) .eyebrow,:lang(zh) .edition,:lang(zh) .issue{letter-spacing:1px}
:root[data-theme="light"]{color-scheme:light;--bg:#f6f9fb;--surface:#fff;--line:#ccd9e1;--text:#132836;--muted:#506675;--cyan:#007487}
[data-theme="light"] body{background:var(--bg);color:var(--text)}[data-theme="light"] header.scrolled{border-bottom-color:var(--line);box-shadow:0 6px 24px #16374a0d}[data-theme="light"] nav a{color:#4b6474}[data-theme="light"] nav a:hover,[data-theme="light"] nav a.active{color:#006f82}[data-theme="light"] .hero-copy>p,[data-theme="light"] .issue,[data-theme="light"] .hero-foot,[data-theme="light"] .edition,[data-theme="light"] .brand-line,[data-theme="light"] .section-count,[data-theme="light"] .small-note,[data-theme="light"] .topic-top>span,[data-theme="light"] .guide-label{color:#536c7b}[data-theme="light"] .feature-number{color:#64808f}[data-theme="light"] .primary{background:#007b8e;color:#fff}[data-theme="light"] .primary:hover{background:#006577}[data-theme="light"] .topic{background:linear-gradient(130deg,#fff,#eef5f8);box-shadow:0 6px 20px #1b465507}[data-theme="light"] .topic:hover{border-color:#007b8e}[data-theme="light"] .guide-intro{background:linear-gradient(140deg,#e8f5f8,#f4f9fb)}[data-theme="light"] .guide-body{background:#fff}[data-theme="light"] .guide-intro p,[data-theme="light"] .guide-body>p,[data-theme="light"] .ram-options p{color:#506675}[data-theme="light"] .ram-options strong{color:#132836}[data-theme="light"] .ram-options>div{border-color:#8eb7c3}[data-theme="light"] .secondary{border-color:#9cbac7;color:#173c4d}[data-theme="light"] .secondary:hover{background:#d9ecf2}[data-theme="light"] .about-content .text-link{color:#173c4d}[data-theme="light"] .footer-top p,[data-theme="light"] .footer-top>a:last-child,[data-theme="light"] .footer-bottom{color:#506675}[data-theme="light"] .footer-bottom,[data-theme="light"] .perspective-grid article{border-color:var(--line)}[data-theme="light"] .menu{color:var(--text);border-color:#b9cdd8}[data-theme="light"] .image-arrow{background:#00d4e9;color:#031014}[data-theme="light"] .image-wrap{border-color:#9fbac8;box-shadow:0 16px 40px #23404e14}[data-theme="light"] .about-art{border-color:#c1d5df}
@media(max-width:1100px){header .header-inner{gap:14px}header .menu{display:block;border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:4px;font-size:21px;line-height:1;padding:9px 12px}header nav{display:none;position:absolute;top:100%;left:0;right:0;height:auto;background:var(--surface);padding:12px 28px 20px;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0}header nav.open{display:flex}header nav a{padding:12px 0}header nav a.active:after{display:none}.preferences{margin-left:auto}}
@media(max-width:720px){header,header.scrolled{height:calc(116px + env(safe-area-inset-top,0px))}.header-inner{display:grid;grid-template-columns:1fr auto;grid-template-rows:62px 46px;column-gap:10px!important;row-gap:0!important;align-content:start}.header-inner>.brand{grid-column:1;grid-row:1}.header-inner>.menu{grid-column:2;grid-row:1}.preferences{grid-column:1 / -1;grid-row:2;margin:0;justify-content:space-between}.preferences #language{max-width:190px;width:165px;height:34px}.theme-toggle{height:34px;min-width:90px}.theme-label{font-size:14px}html{scroll-padding-top:calc(142px + env(safe-area-inset-top,0px))}.perspective-grid article{scroll-margin-top:calc(142px + env(safe-area-inset-top,0px))}.localized-cover-title{padding:8px 18px;gap:2px}.localized-cover-title strong{font-size:clamp(21px,6vw,32px)}.localized-cover-title>span:first-child{font-size:12px}.localized-cover-title>span:last-child{font-size:13px}[data-theme="light"] .topic .text-link{border-color:var(--line)}}

/* Optimierte WebP-Bilder: kleine Logodatei im Header, große Markenwelt nur im Inhaltsbereich. */
.brand-icon,.footer-top .brand-icon,.localized-brand .brand-icon{background-image:url('assets/brand-icon.webp');background-size:cover;background-position:center}
.about-art{background-image:url('assets/brand.webp')}
/* Consistent disclosure sizing in every locale and color scheme. */
details{display:flow-root;border-color:var(--line)}
summary{align-items:center;min-height:60px;line-height:1.55;padding:17px 0;gap:18px;color:var(--text)}
summary>span{flex:0 0 20px;width:20px;height:20px;display:grid;place-items:center;font-size:20px;line-height:1;transform-origin:center}
details>p{margin:0;padding:0 38px 20px 0;font-size:15px;line-height:1.75;color:var(--muted)}
.topic{display:flex;flex-direction:column}.topic-top{float:none}.topic p{flex:1}.topic .text-link{margin-top:auto}
.theme-toggle{min-width:88px}.language-label select{width:135px}
header nav.open{max-height:calc(100dvh - 116px - env(safe-area-inset-top,0px));overflow-y:auto;overscroll-behavior:contain}
@media(min-width:1101px){header nav{max-height:none;overflow:visible}}
@media(max-width:720px){.topic-top{flex-direction:row}.theme-toggle{min-width:100px}details>p{padding-right:0}.topic .text-link{margin-top:0}}