@charset "UTF-8";
:root{color-scheme:dark;--bg:#1e2022;--deep:#151719;--surface:#26282a;--surface-2:#2c2e30;--text:#f4f4f6;--muted:#b8b9be;--line:#ffffff18;--sand:#e5e0da;--amber:#c0a080;--blue:#a0c4df;--max:1240px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--text);font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8;-webkit-font-smoothing:antialiased}body.modal-open{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}button{color:inherit}button:disabled{cursor:wait}a,button,summary{touch-action:manipulation}a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--blue);outline-offset:5px}img{display:block;max-width:100%;height:auto}::selection{background:var(--blue);color:var(--deep)}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.35}p{color:var(--muted)}.container{width:min(var(--max),calc(100% - 80px));margin-inline:auto}.skip{position:fixed;top:-80px;left:20px;background:var(--sand);color:var(--deep);padding:10px 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28px;font-size:11px;color:var(--muted);margin-top:25px}.article-layout{display:grid;grid-template-columns:230px minmax(0,1fr);gap:65px;padding-block:54px 80px}.article-sidebar{position:sticky;top:115px;align-self:start}.article-sidebar h2{font-size:11px;font-weight:400;letter-spacing:2px;color:var(--blue);margin-bottom:18px}.article-sidebar a{display:block;font-size:12px;color:var(--muted);border-left:1px solid var(--line);padding:8px 16px}.article-sidebar a:hover{color:var(--sand);border-color:var(--blue)}.article-sidebar .button{display:flex;margin-top:28px}.article-content{min-width:0;max-width:850px}.article-content>section{padding-bottom:38px;margin-bottom:35px;border-bottom:1px solid var(--line);scroll-margin-top:110px}.article-content h2{font-size:25px;font-weight:500;margin-bottom:22px;letter-spacing:.4px}.article-content h3{font-size:17px;font-weight:500;margin:26px 0 12px}.article-content p,.article-content 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@media(min-width:1600px){.hero-visual{margin-right:-90px;height:530px}.hero-grid{min-height:680px}}
@media(max-width:1150px){.container{width:calc(100% - 56px)}.nav{gap:17px}.nav a{font-size:12px}.header-inner{gap:20px}.brand strong{font-size:14px}.brand small{font-size:8px}.hero-visual{margin-right:-50px}.task-card{right:25px;width:222px}.hero h1{font-size:62px}.hero-subtitle{font-size:18px}.intro-grid{gap:36px}.resource-card{padding:22px 15px}.feature{padding:27px 18px}.faq-grid{gap:40px}.article-layout{gap:40px;grid-template-columns:200px minmax(0,1fr)}}
@media(max-width:950px){.nav{display:none;position:absolute;top:72px;left:0;right:0;background:#202224;border-bottom:1px solid var(--line);padding:20px 28px;grid-template-columns:repeat(3,1fr);gap:8px}.nav.is-open{display:grid}.nav a{padding:12px 8px;font-size:13px}.menu-toggle{display:block;margin-left:auto}.header-inner{height:72px}.header-download{margin-left:0;order:1}.menu-toggle{order:2}.hero-grid{grid-template-columns:1fr 1fr;min-height:580px}.hero-copy{padding:55px 0}.hero h1{font-size:56px}.hero-visual{height:450px;margin-left:-40px}.hero-summary{font-size:12px;max-width:320px}.task-card{width:210px;right:24px;bottom:40px;padding:17px}.task-card h2{font-size:14px}.task-card p{font-size:10px}.hero .button{padding:12px 17px;font-size:12px;gap:10px}.section{padding:65px 0}.intro-grid{grid-template-columns:1fr 1fr;gap:30px}.intro-grid .lead{font-size:16px}.intro-grid p{font-size:13px}.cards{gap:16px}.card-body{padding:20px}.scene-card h3{font-size:16px}.play-grid{gap:35px}.feature-grid{grid-template-columns:repeat(2,1fr)}.feature:nth-child(3){border-left:0;border-top:1px solid var(--line)}.feature:nth-child(4){border-top:1px solid var(--line)}.feature-icon{margin-bottom:18px}.resource-grid{grid-template-columns:repeat(3,1fr)}.resource-card:nth-child(4){border-left:0;border-top:1px solid var(--line)}.resource-card:nth-child(5){border-top:1px solid var(--line)}.resource-card>span{margin-bottom:15px}.fact{padding-left:20px}.fact strong{font-size:14px}.update-grid{gap:30px}.entity-list{grid-template-columns:80px 1fr}.article-layout{grid-template-columns:170px minmax(0,1fr);gap:25px}.article-hero h1{font-size:34px}}
@media(max-width:680px){.container{width:calc(100% - 40px)}html{scroll-padding-top:90px}.header-inner{height:66px;gap:12px}.brand{gap:7px}.brand-mark{font-size:24px}.brand strong{font-size:13px;letter-spacing:.3px}.brand small{font-size:7px;letter-spacing:1.7px}.header-download .button{min-height:38px;padding:8px 13px;font-size:11px;gap:6px}.header-download .download-icon{display:none}.menu-toggle{height:38px;min-width:38px;width:38px;font-size:20px}.nav{top:66px;grid-template-columns:repeat(2,1fr);padding:12px 20px}.hero-grid{display:flex;flex-direction:column;gap:0;min-height:auto}.hero-copy{width:100%;padding:43px 0 32px}.eyebrow{font-size:9px;letter-spacing:2px;margin-bottom:24px}.hero h1{font-size:54px;letter-spacing:3px;margin-bottom:22px}.hero h1 br{display:none}.hero h1 span{display:block}.hero-subtitle{font-size:17px;letter-spacing:1px;line-height:1.6}.hero-summary{max-width:100%;font-size:12px;line-height:2;margin-bottom:25px}.hero .button{font-size:12px;padding:12px 20px}.hero-note{font-size:10px}.hero-visual{margin:10px -20px 0;width:calc(100% + 40px);height:330px;align-self:auto}.hero-picture{border-radius:0;border-left:0;border-right:0}.hero-picture img{object-position:center center}.hero-picture:after{background:linear-gradient(0deg,#151719ed,transparent 60%)}.visual-index{top:-22px;right:21px;font-size:8px}.task-card{width:200px;right:20px;bottom:25px;padding:15px}.task-card h2{font-size:13px;margin:12px 0 6px}.task-card p{font-size:10px;margin-bottom:10px}.task-card a{font-size:10px;padding-top:8px}.task-top{font-size:8px;padding-bottom:9px}.frame-label{top:17px;left:20px;font-size:8px}.scene-caption{left:20px;bottom:25px;font-size:9px;max-width:90px;line-height:1.8}.hero-bottom{padding:18px 0;font-size:9px;letter-spacing:.5px;gap:15px}.tag{font-size:9px;padding:2px 7px}.tag-row{gap:5px}.hero-bottom>a{white-space:nowrap}.facts-grid{grid-template-columns:repeat(2,1fr);padding:7px 0}.fact{padding:15px 0 15px 20px}.fact:nth-child(3){border:0;padding-left:0;border-top:1px solid var(--line)}.fact:nth-child(4){border-top:1px solid var(--line)}.fact small{font-size:9px}.fact strong{font-size:14px}.fact strong em{font-size:9px;margin-left:5px}.section{padding:54px 0}.section-head{align-items:flex-start;margin-bottom:27px;gap:15px}.section-head p{display:none}.section h2{font-size:26px}.section-kicker{font-size:9px;letter-spacing:2px;margin-bottom:9px}.text-link{font-size:11px;gap:10px;white-space:nowrap}.intro-grid{grid-template-columns:1fr;gap:28px}.intro-grid .lead{font-size:17px}.intro-grid p{font-size:13px}.intro-photo figcaption{font-size:9px}.inline-note{margin-top:20px}.cards{grid-template-columns:1fr;gap:20px}.scene-card{display:grid;grid-template-columns:1fr}.scene-card img{aspect-ratio:16/9}.card-body{padding:22px}.scene-card h3{font-size:18px}.card-index{margin-bottom:9px}.scene-card p{font-size:12px}.play-grid{grid-template-columns:1fr;gap:24px}.play-copy>p{margin-bottom:15px}.steps li{padding:19px 0;grid-template-columns:30px 1fr;gap:14px}.feature{padding:23px 18px}.feature h3{font-size:14px}.feature p{font-size:11px}.guide-grid{grid-template-columns:1fr}.guide-feature{min-height:300px}.guide-feature>div{padding:25px}.guide-feature h3{font-size:21px}.guide-item{padding:18px 22px}.resource-grid{grid-template-columns:repeat(2,1fr)}.resource-card{padding:22px}.resource-card:nth-child(3){border-left:0;border-top:1px solid var(--line)}.resource-card:nth-child(4){border-left:1px solid var(--line)}.resource-card:last-child{grid-column:1/-1;border-left:0;display:grid;grid-template-columns:1fr auto;column-gap:20px}.resource-card:last-child>span{grid-column:1/-1}.resource-card:last-child h3{margin-bottom:8px}.resource-card:last-child p{grid-column:1;margin:0}.resource-card:last-child b{grid-column:2;grid-row:2/4;align-self:center}.update-grid{grid-template-columns:1fr;gap:24px}.version-card{padding:24px}.faq-grid{grid-template-columns:1fr;gap:22px}.faq-intro p{margin:15px 0 8px}.faq-intro .text-link{min-height:35px}.faq-list summary{font-size:13px;padding:20px 25px 20px 0}.faq-list p{font-size:12px}.download-banner{padding:28px 24px;align-items:flex-start;flex-direction:column;gap:22px}.download-banner h2{font-size:21px}.download-banner p{font-size:11px}.download-banner .button{width:100%}.footer-top{flex-direction:column;gap:22px}.footer-nav{gap:10px 20px;padding:0}.footer-top p{font-size:10px}.friend-links{gap:10px 18px}.footer-bottom{flex-direction:column;gap:8px;font-size:9px}.article-hero{padding:27px 0 35px}.breadcrumbs{font-size:10px;gap:8px;margin-bottom:27px}.article-hero h1{font-size:29px;line-height:1.5}.article-hero .description{font-size:12px}.byline{font-size:10px;gap:8px 20px}.article-layout{display:flex;flex-direction:column;gap:30px;padding-block:30px 50px}.article-sidebar{position:static;border:1px solid var(--line);padding:20px;width:100%}.article-sidebar h2{margin-bottom:12px}.article-sidebar nav{display:grid;grid-template-columns:1fr 1fr;gap:2px 0}.article-sidebar a{font-size:11px;padding:7px 12px}.article-sidebar .button{margin-top:18px;min-height:42px}.article-content h2{font-size:23px}.article-content h3{font-size:16px}.article-content p,.article-content li{font-size:13px}.article-content .entity-list{grid-template-columns:76px 1fr;font-size:12px;gap:12px 14px;padding:20px}.article-content .faq-list summary{font-size:14px}.article-content .faq-list p{font-size:13px}.related{padding:40px 0}.download-dialog{padding:23px}.dialog-head h2{font-size:18px}.dialog-actions{gap:10px}.dialog-actions .button{padding:11px 17px;font-size:12px}.error-number{font-size:90px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
@media(max-width:680px){.hero h1>span>span{display:inline}}

/* Expanded reading index and chronological field desk. */
.resource-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);overflow:hidden}
.resource-grid .resource-card,.resource-grid .resource-card:last-child{border:0;background:var(--bg,#1e2022);display:block;grid-column:auto;min-width:0}
.resource-grid .resource-card:hover{background:var(--surface)}
.resource-card>span{letter-spacing:1.3px;overflow-wrap:anywhere}
.field-desk{display:grid;grid-template-columns:minmax(270px,.75fr) minmax(0,1.25fr);gap:38px;align-items:start}
.phone-notes{border:1px solid #a0c4df40;border-radius:18px;background:linear-gradient(150deg,#a0c4df09,transparent),var(--surface);padding:27px 26px;box-shadow:0 16px 45px #0002}
.phone-notes .task-top{padding-bottom:18px;color:var(--blue);font-size:10px}
.phone-notes summary{font-size:15px;padding-top:25px;padding-bottom:23px}
.phone-notes p{font-size:13px;line-height:2}
.phone-notes p a{display:block;color:var(--blue);margin-top:14px;min-height:36px}
.desk-note{display:block;color:var(--muted);font-size:10px;margin-top:22px;line-height:1.8}
.desk-scenes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.desk-scenes figure{margin:0;min-width:0}.desk-scenes img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:4px;display:block}
.desk-scenes figcaption{font-size:11px;line-height:1.9;color:var(--muted);margin-top:12px}
.desk-scenes>.text-link{grid-column:1/-1;justify-self:start;margin-top:7px}
.table-wrap:focus-visible{outline:2px solid var(--blue);outline-offset:4px}
@media(max-width:950px){.field-desk{gap:23px;grid-template-columns:minmax(250px,.9fr) minmax(0,1.1fr)}.desk-scenes{gap:12px}.desk-scenes img{aspect-ratio:3/5}.phone-notes{padding:23px 20px}.phone-notes summary{font-size:13px}}
@media(max-width:680px){.resource-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.resource-grid .resource-card{padding:22px 18px}.field-desk{grid-template-columns:minmax(0,1fr);gap:27px}.phone-notes{padding:26px 23px}.phone-notes summary{font-size:14px}.desk-scenes img{aspect-ratio:4/5}.desk-scenes>.text-link{white-space:normal}}
@media(max-width:360px){.resource-grid{grid-template-columns:minmax(0,1fr)}.resource-card>span{margin-bottom:14px}}
.header-download .button{white-space:nowrap}.menu-toggle{flex-shrink:0}
@media(max-width:360px){.site-header .brand small{display:none}}

/* 颜色要求.txt：矿物深灰、水泥暗黑、冷雾白、沙砾暖灰、冰川蓝与低饱和警示黄。 */
:root{--bg:#1E2022;--deep:#121212;--surface:#1E2022;--surface-2:#1E2022;--text:#F4F4F6;--muted:#D1D1D6;--sand:#E5E0DA;--amber:#C0A080;--blue:#A0C4DF;--warn:#E6AF2E;--line:#D1D1D626}
body{background:var(--bg)}
.site-header,.article-hero,.related,.section.alt,.site-footer{background:var(--deep)}
.site-header{background:#121212f5;border-color:var(--line)}
.hero{background:var(--deep)}
.hero:after{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(circle at 75% 45%,#A0C4DF12,transparent 36%)}
.hero-grid{isolation:isolate}.hero-copy,.hero-visual{z-index:1}
.hero-picture{border-color:#A0C4DF52;box-shadow:0 24px 72px #00000080}
.hero-picture:after{background:linear-gradient(90deg,#121212c9 0%,#12121235 44%,transparent 72%),linear-gradient(0deg,#121212e6,transparent 56%)}
.task-card,.phone-notes{background:linear-gradient(145deg,#A0C4DF12,transparent 55%),#1E2022f2;border-color:#A0C4DF66;box-shadow:0 22px 72px #000000a6}
.task-card{border-radius:18px}.task-card:before{content:"";display:block;width:52px;height:4px;margin:-7px auto 15px;border-radius:99px;background:#D1D1D650}
.task-card h2,.phone-notes summary{color:var(--text)}
.button.primary{background:var(--warn);color:#121212;box-shadow:0 8px 24px #E6AF2E26}
.button.primary:hover{background:var(--amber);box-shadow:0 10px 30px #C0A08033}
.button.secondary{border-color:#A0C4DF73;background:#A0C4DF0d;color:var(--sand)}
.button.secondary:hover,.guide-item:hover,.resource-grid .resource-card:hover{border-color:#A0C4DF8c;background:#A0C4DF12}
.scene-card,.guide-item,.version-card,.article-content .entity-list{background:var(--surface);border-color:var(--line)}
.scene-card:hover{border-color:#A0C4DF8c;box-shadow:0 14px 36px #00000052}
.download-banner{border-color:#C0A08080;background:linear-gradient(120deg,#C0A08022,transparent 68%)}
.download-dialog{border-color:#E6AF2E80;background:#1E2022;box-shadow:0 32px 120px #000000cc}
.download-dialog::backdrop{background:#121212db}
.inline-note{border-color:var(--amber)}
.status-dot{background:var(--blue);box-shadow:0 0 10px #A0C4DFcc}
.resource-grid{background:var(--line);border-color:var(--line)}
.resource-grid .resource-card,.resource-grid .resource-card:last-child{background:#1E2022}
.resource-card b{color:var(--blue)}
.table-wrap,th,td{border-color:var(--line)}th{background:#1E2022;color:var(--sand)}
@media(max-width:680px){.task-card{border-radius:14px}.hero-picture{box-shadow:none}}