/* 王牌航线 · 独立版式，继承 XBlog 的功能与可访问性钩子。 */
:root{--bg:#f4f5f5;--surface:#fff;--text:#192e3c;--muted:#6a7882;--line:#dde3e7;--accent:#b65020;--soft:#f9eee6;--code:#f0f3f5;--scrollbar:#c4cfd5;--flight-navy:#132f42;--flight-orange:#ff9a55;--flight-card-shadow:0 5px 25px #122d3c04}
:root.dark{--bg:#0e1b25;--surface:#152733;--text:#e0e9ef;--muted:#a0b1bd;--line:#2b414f;--accent:#ffad70;--soft:#302a27;--code:#10212c;--scrollbar:#415665;--flight-navy:#102837;--flight-card-shadow:none}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;letter-spacing:.01em}
.site-header{border-bottom:1px solid var(--line);background:var(--surface);flex-shrink:0}
.header-inner{max-width:1312px;min-height:82px;padding:16px 36px;gap:24px}
.brand{font-size:18px;font-weight:750;letter-spacing:-.4px;gap:10px}
.brand:not(:has(img)):before{content:'↗';display:grid;place-items:center;width:36px;height:36px;border-radius:9px;background:var(--flight-navy);color:#ffae71;font-size:26px;font-weight:500;flex-shrink:0}
.header-inner>nav{gap:23px;font-size:13px}
.header-inner>nav a[aria-current]{color:var(--accent)}
.header-inner>nav a[aria-current]:after{background:var(--accent)}
.flight-workspace{width:min(1240px,calc(100% - 72px));margin:30px auto 60px;flex:1;min-width:0}
.flight-hero{position:relative;display:grid;grid-template-columns:1fr 1.13fr;background:var(--flight-navy);color:#fff;border-radius:18px;overflow:hidden;isolation:isolate;margin-bottom:24px;min-height:370px}
.hero-copy{padding:35px 0 66px 42px;position:relative;z-index:1}
.hero-eyebrow{font-size:12px;letter-spacing:2px;margin:0 0 16px;color:#bfced8;display:flex;align-items:center;gap:10px}
.hero-eyebrow>span{color:var(--flight-orange);font-size:21px;line-height:1}
#flight-title{font-size:clamp(36px,3.5vw,52px);line-height:1.2;margin:0 0 16px;font-weight:800;letter-spacing:1px;color:#f9fafb}
#flight-title span{color:#ffac73}
.hero-description{margin:0;color:#beccd7;font-size:13px;line-height:1.9}
.hero-actions{display:flex;align-items:center;gap:20px;margin-top:22px}
.hero-actions>a{display:inline-flex;gap:26px;align-items:center;background:#ffa366;color:#142d3d;font-size:12px;font-weight:700;padding:9px 16px;border-radius:6px}
.hero-actions>a:hover{background:#ffba8c;color:#142d3d}
.hero-actions>span{font-size:11px;color:#a7bac7}
.hero-route{display:flex;align-items:center;justify-content:center;position:relative;min-width:0;padding:2px 15px 38px 0;pointer-events:none}
.hero-route img{width:100%;height:auto;opacity:.96}
.map-caption{position:absolute;bottom:66px;left:50%;transform:translateX(-50%);font-size:10px;letter-spacing:2px;color:#b6c9d5;white-space:nowrap}
.hero-bottom{position:absolute;bottom:0;left:0;right:0;display:flex;justify-content:space-between;gap:12px;padding:11px 42px;border-top:1px solid #63819540;font-size:10px;letter-spacing:1px;color:#afc2cf}
.hero-bottom i{display:inline-block;width:5px;height:5px;background:#ffa166;border-radius:50%;margin-right:8px;vertical-align:middle}
.invite-module{margin:0 0 32px;min-width:0}
.invite-heading,.section-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:13px}
.invite-heading h2,.section-heading h2{font-size:16px;font-weight:750;margin:0;letter-spacing:.3px}
.invite-heading>span{font-size:10px;color:var(--muted);border:1px solid var(--line);border-radius:4px;padding:1px 6px}
.invite-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.invite-card{position:relative;display:flex;align-items:center;gap:16px;padding:20px 23px;border:1px solid var(--line);border-radius:12px;background:var(--surface);box-shadow:var(--flight-card-shadow);min-width:0;transition:border-color .2s,transform .2s}
.invite-card:hover{border-color:var(--accent);transform:translateY(-2px);color:var(--text)}
.invite-symbol{width:50px;height:50px;flex:0 0 50px;display:grid;place-items:center;border-radius:12px;background:#eaf1f5;color:#284e65}
.invite-number{background:#fff0e4;color:#b75020;font-size:26px;font-weight:800;font-style:italic}
.dark .invite-symbol{background:#233d50;color:#b9d9ee}.dark .invite-number{background:#3b2e25;color:#ffc290}
.invite-copy{display:flex;flex:1;flex-direction:column;min-width:0;overflow-wrap:anywhere;line-height:1.7}
.invite-copy strong{font-size:24px;letter-spacing:-.5px;line-height:1.2;margin-bottom:5px}
.invite-copy>span{font-size:11px;color:var(--muted)}
.invite-copy small{font-size:10px;color:var(--muted);margin-top:5px}.invite-copy b{font:600 11px ui-monospace,Consolas,monospace;color:var(--text);margin-left:6px}
.invite-action{align-self:stretch;display:flex;align-items:center;gap:16px;padding-left:22px;border-left:1px dashed var(--line);font-size:12px;font-weight:650;color:var(--accent);white-space:nowrap}
.invite-action>span{font-size:20px}
.flight-columns{display:grid;grid-template-columns:minmax(0,1fr) 278px;gap:28px;align-items:start}
.content-column,.flight-rail,.reading-content{min-width:0}
.section-heading{min-height:30px;margin-bottom:17px}.section-heading>span{font-size:11px;color:var(--muted)}
.section-heading h2:before{content:'';display:inline-block;width:4px;height:15px;border-radius:3px;background:var(--accent);margin-right:9px;vertical-align:-2px}
.flight-entries{display:flex;flex-direction:column;gap:18px;counter-reset:article}
.home-feature{border:1px solid var(--line);border-radius:12px;background:var(--surface);box-shadow:var(--flight-card-shadow);padding:30px 36px 0;min-width:0;scroll-margin-top:28px;overflow-wrap:anywhere}
.feature-header{border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:24px}
.feature-eyebrow{display:flex;gap:9px;align-items:center;font-size:11px;margin-bottom:16px}
.flight-tag{padding:3px 10px;border-radius:4px;background:var(--soft);color:var(--accent);font-weight:650;letter-spacing:1px}
.feature-pin{color:var(--muted);padding-left:5px}.fulltext-label{margin-left:auto;color:var(--muted);display:flex;align-items:center;gap:6px}.fulltext-label:before{content:'';width:5px;height:5px;background:#48866e;border-radius:50%}
.feature-header h2{font-size:28px;letter-spacing:-.5px;line-height:1.5;margin:0 0 17px}
.metadata{font-size:11px;gap:6px 13px}.metadata a{color:var(--accent)}
.home-feature-body:not(.is-rendered){white-space:pre-wrap;overflow-wrap:anywhere}
.prose{font-size:15px;line-height:2;color:var(--text)}
.prose h2,.prose h3{font-weight:750;letter-spacing:-.3px;margin-top:34px;margin-bottom:15px}
.prose h2{font-size:24px}.prose h3{font-size:21px}
.prose img{height:auto;max-width:100%;border-radius:8px}.prose figure{margin:25px 0}.prose figcaption{text-align:center;font-size:12px;color:var(--muted)}
.prose blockquote{border-left:3px solid var(--accent);background:var(--soft);padding:14px 20px;border-radius:0 6px 6px 0}
.prose table{display:block;width:100%;max-width:100%;overflow-x:auto;border-collapse:collapse;font-size:13px;line-height:1.8}
.prose pre{max-width:100%;overflow-x:auto;border:1px solid var(--line);border-radius:8px;background:var(--code)}
.prose details{margin:20px 0}.prose summary{cursor:pointer}
.feature-footer{border-top:1px dashed var(--line);margin-top:30px;padding:18px 0;display:flex;justify-content:space-between;gap:15px;align-items:center;font-size:11px;color:var(--muted)}
.feature-footer>span>span{color:var(--accent);margin-right:6px}.feature-footer>a{color:var(--accent);font-weight:600}
.feature-image-fallback,.feature-unavailable{padding:14px;background:var(--soft);border-radius:6px}
.flight-card{padding:26px 32px;background:var(--surface);border:1px solid var(--line);border-radius:12px;min-width:0}
.flight-card:before,.flight-card:after{display:none}.flight-card h2{font-size:22px;line-height:1.5;margin:8px 0 12px;letter-spacing:-.2px}.card-topic{font-size:11px;color:var(--accent);display:flex;gap:10px}
.card-summary{font-size:13px;line-height:1.85;margin:0 0 18px;color:var(--muted)}
.card-footer{font-size:11px;gap:14px}.card-footer>span{flex-wrap:wrap;gap:8px 14px}.read-more{color:var(--accent);white-space:nowrap}.pinned{font-size:10px;background:var(--soft);color:var(--accent);vertical-align:middle}
.flight-rail{display:flex;flex-direction:column;gap:22px}.home-rail{padding-top:47px;position:static}
.rail-intro{padding:25px;background:var(--surface);border:1px solid var(--line);border-radius:12px}
.rail-emblem{display:grid;place-items:center;width:43px;height:43px;background:var(--soft);border-radius:50%;color:var(--accent);margin-bottom:17px}.rail-emblem svg{width:25px;height:25px}
.rail-intro h2{font-size:15px;margin:0 0 10px}.rail-intro p{font-size:12px;line-height:1.9;color:var(--muted);margin:0 0 17px}.rail-signoff{display:block;font-size:10px;color:var(--muted);border-top:1px dashed var(--line);padding-top:14px}
.home-sidebar{position:static;display:block;border:0;padding:0}.sidebar-section{border:1px solid var(--line);padding:22px;border-radius:12px;background:var(--surface);margin-bottom:20px}.sidebar-section:last-child{margin-bottom:0}.sidebar-section h2{font-size:14px;margin-bottom:17px}
.category-list{gap:0}.category-list a{padding:9px 0;border-bottom:1px solid var(--line);font-size:12px}.category-list a:last-child{border:0}.taxonomy-count{font:11px ui-monospace,Consolas,monospace;padding:2px 6px;background:var(--code);border-radius:4px}.tag-list{gap:7px}.tag-list a{font-size:11px;background:var(--code);padding:4px 8px;border-radius:4px}.tag-count{font-size:9px;margin-left:5px}
.archive-columns{display:block;max-width:930px;margin:0 auto}.archive-header{padding:20px 0 30px;max-width:930px;margin:0 auto}.archive-header h1{font-size:32px}.archive-header p{color:var(--muted);font-size:14px}.archive-header .section-kicker{color:var(--accent);font-size:12px;letter-spacing:2px}
.reading-content{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:35px 40px}.article-header h1{font-size:32px;line-height:1.5}.article-rail{position:static}.article-rail .invite-grid{grid-template-columns:1fr;gap:12px}.article-rail .invite-module{margin:0}.article-rail .invite-card{flex-wrap:wrap;padding:18px;gap:12px}.article-rail .invite-symbol{width:38px;height:38px;flex-basis:38px;border-radius:9px}.article-rail .invite-symbol svg{width:25px}.article-rail .invite-copy strong{font-size:21px}.article-rail .invite-copy>span{font-size:10px}.article-rail .invite-action{flex:0 0 100%;border-left:0;border-top:1px dashed var(--line);padding:10px 0 0;justify-content:space-between}.toc{position:static;max-height:none;border:1px solid var(--line);padding:22px;border-radius:12px;background:var(--surface);font-size:12px}.toc>div{font-size:14px}
.ad-slot{min-width:0}.ad-card{border-radius:10px!important}.ad-copy{overflow-wrap:anywhere}.ad-copy pre{max-width:100%;overflow:auto}.ad-copy img{max-width:100%}
.site-footer{width:min(1240px,calc(100% - 72px));border-top:1px solid var(--line);margin:0 auto;padding:24px 0;color:var(--muted);flex-shrink:0}.flight-footer{display:flex;justify-content:space-between;gap:15px;font-size:11px;line-height:1.8}.flight-footer>span:last-child>span{color:var(--accent);margin-left:10px}.pagination{margin-top:26px}.pagination a{background:var(--surface);padding:7px 12px;border:1px solid var(--line);border-radius:6px}
@media(min-width:761px) and (max-width:1180px){.header-inner{padding:16px 26px;gap:16px;flex-wrap:wrap}.brand{flex:1}.header-inner>nav{order:4;flex-basis:100%;justify-content:flex-start;gap:25px}.flight-columns{grid-template-columns:minmax(0,1fr) 235px;gap:22px}.home-feature{padding:25px 26px 0}.invite-card{padding:18px;gap:12px}.invite-action{padding-left:13px;gap:8px}.hero-actions>span{display:none}.hero-copy{padding-left:30px}.hero-route{padding-right:0}.hero-bottom{padding-left:30px;padding-right:30px}}
@media(max-width:980px){.flight-columns{grid-template-columns:minmax(0,1fr) 220px;gap:20px}.invite-symbol{width:42px;height:42px;flex-basis:42px}.invite-copy strong{font-size:22px}.invite-action{font-size:11px}.invite-action>span{display:none}.hero-route{opacity:.75}.home-feature{padding:22px 24px 0}.feature-header h2{font-size:25px}.reading-content{padding:26px}.article-header h1{font-size:28px}.toc{display:block}.flight-card{padding:24px}.rail-intro,.sidebar-section{padding:19px}}
@media(max-width:760px){.header-inner{padding:13px 16px;min-height:68px;gap:10px}.brand{font-size:15px;gap:8px}.brand:not(:has(img)):before{width:30px;height:30px;font-size:22px;border-radius:7px}.brand img{width:30px;height:30px}.header-inner>nav{gap:8px 20px}.navigation-ready>nav{left:16px;right:16px}.flight-workspace{width:calc(100% - 32px);margin:18px auto 34px}.flight-hero{min-height:410px;display:block;border-radius:12px;margin-bottom:22px}.hero-copy{padding:27px 25px 70px;z-index:1}.hero-eyebrow{font-size:10px;letter-spacing:1.4px;margin-bottom:19px}#flight-title{font-size:39px;line-height:1.25}.hero-description{font-size:12px}.hero-actions{margin-top:24px}.hero-actions>span{display:none}.hero-actions>a{font-size:12px;padding:9px 14px;gap:24px}.hero-route{position:absolute;inset:auto -95px 20px auto;width:340px;height:235px;padding:0;z-index:0;opacity:.23;align-items:end}.map-caption{display:none}.hero-bottom{padding:12px 25px;font-size:9px}.hero-bottom>span:last-child{display:none}.invite-grid{grid-template-columns:1fr;gap:11px}.invite-heading{margin-bottom:12px}.invite-heading h2{font-size:14px}.invite-card{padding:17px;gap:13px;border-radius:10px}.invite-symbol{width:43px;height:43px;flex-basis:43px}.invite-copy strong{font-size:22px}.invite-copy>span{font-size:10px}.invite-copy small{font-size:9px}.invite-copy b{font-size:10px}.invite-action{padding-left:14px;font-size:11px;gap:8px}.invite-module{margin-bottom:28px}.flight-columns{display:flex;flex-direction:column;gap:25px}.content-column,.flight-rail,.reading-content{width:100%}.home-rail{padding-top:0}.home-sidebar,.rail-intro{display:none}.section-heading{margin-bottom:13px}.section-heading h2{font-size:15px}.section-heading>span{font-size:10px}.home-feature{padding:22px 20px 0;border-radius:10px}.feature-header{padding-bottom:18px;margin-bottom:20px}.feature-header h2{font-size:23px;line-height:1.55;letter-spacing:-.4px}.feature-eyebrow{font-size:10px;gap:7px}.metadata{font-size:10px;gap:5px 9px}.prose{font-size:14px;line-height:1.95}.prose h2{font-size:22px}.prose h3{font-size:20px}.prose pre{padding:16px}.prose blockquote{padding:12px 15px}.prose table{font-size:12px}.prose th,.prose td{min-width:90px}.feature-footer{align-items:flex-start;flex-direction:column;gap:9px;padding:16px 0}.flight-card{padding:22px 20px;border-radius:10px}.flight-card h2{font-size:20px}.card-summary{font-size:12px}.card-footer{align-items:flex-start;font-size:10px}.card-footer>span{gap:3px 8px}.flight-entries{gap:13px}.archive-header{padding:15px 4px 22px}.archive-header h1{font-size:28px}.reading-content{padding:25px 20px;border-radius:10px}.article-header h1{font-size:25px}.article-rail .toc{display:none}.article-rail .invite-card{flex-wrap:nowrap}.article-rail .invite-action{flex:initial;border:0;border-left:1px dashed var(--line);padding:0 0 0 12px}.site-footer{width:calc(100% - 32px);padding:20px 0}.flight-footer{flex-direction:column;gap:5px;font-size:10px}.article-page>.site-footer{padding:10px 0}.article-page .flight-footer>span:last-child{display:none}.friend-links{font-size:11px}.breadcrumbs{font-size:11px}}
@media(max-width:350px){.brand{font-size:13px}.brand:not(:has(img)):before{display:none}.invite-card{padding:15px;gap:10px}.invite-symbol{width:34px;height:34px;flex-basis:34px}.invite-copy>span{font-size:9px}.invite-action{padding-left:10px;font-size:10px}.section-heading>span{display:none}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}html,.article-scroll{scroll-behavior:auto}.invite-card:hover{transform:none}}
/* Keep the reading directory aligned with the invitation cards. */
.article-rail .toc{width:100%}
/* v1.0.1：后台 Markdown 控制推荐卡片的全部正文。 */
.invite-module.ad-slot{display:block}
.invite-copy h2,.invite-copy h3,.invite-copy h4{font-size:24px;letter-spacing:-.5px;line-height:1.2;margin:0 0 5px;color:var(--text)}
.invite-copy p{font-size:11px;line-height:1.8;color:var(--muted);margin:0}
.invite-copy p+p{margin-top:5px}
.invite-copy p:last-child:not(:first-child){font-size:10px}
.invite-copy p strong{font:600 11px ui-monospace,Consolas,monospace;letter-spacing:0;line-height:inherit;color:var(--text);margin:0 0 0 4px}
.invite-copy ul,.invite-copy ol{font-size:11px;padding-left:1.3em;margin:5px 0}
.invite-copy pre,.invite-copy table{display:block;max-width:100%;overflow:auto;font-size:11px}
.invite-copy>img,.invite-copy p>img{max-width:100%;height:auto}
.invite-image{background:transparent!important;overflow:hidden}
.invite-image img{display:block;width:100%;height:100%;object-fit:contain;margin:0}
.invite-card:nth-child(even) .invite-symbol{background:#fff0e4;color:#b75020}
.dark .invite-card:nth-child(even) .invite-symbol{background:#3b2e25;color:#ffc290}
.invite-image-only .invite-image{flex:1;width:auto;height:100px;border-radius:6px}
.invite-image-only .invite-action{align-self:stretch}
.article-rail .invite-copy h2,.article-rail .invite-copy h3,.article-rail .invite-copy h4{font-size:21px}
@media(max-width:760px){.invite-copy h2,.invite-copy h3,.invite-copy h4{font-size:22px}.invite-copy p{font-size:10px}.invite-copy p:last-child:not(:first-child){font-size:9px}.invite-copy p strong{font-size:10px}}
/* v1.0.2：后台品牌 Logo 与醒目的免费试用入口。 */
.invite-symbol.invite-image{width:56px;height:56px;flex-basis:56px;padding:6px;border-radius:12px;background:#fff!important}
.invite-action{font-size:16px;font-weight:750;line-height:1.5;padding-left:18px;gap:8px}
.article-rail .invite-symbol.invite-image{width:48px;height:48px;flex-basis:48px;padding:5px}
.article-rail .invite-action{font-size:16px;padding-left:0}
.invite-image-only .invite-symbol.invite-image{flex:1;width:auto;height:100px}
@media(max-width:760px){.invite-symbol.invite-image{width:48px;height:48px;flex-basis:48px;padding:5px;border-radius:10px}.invite-action,.article-rail .invite-action{font-size:15px;padding-left:12px}.invite-image-only .invite-symbol.invite-image{flex:1;width:auto;height:100px}}
@media(max-width:350px){.invite-symbol.invite-image{width:44px;height:44px;flex-basis:44px}.invite-action,.article-rail .invite-action{font-size:14px;padding-left:10px}}