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(min-width:768px){.d-md-none{display:none!important}.d-md-block{display:block!important}}.flex-wrap{flex-wrap:wrap}.flex-column,.flex-md-row{flex-direction:column}@media (min-width:768px){.flex-md-row{flex-direction:row}}.justify-content-between{justify-content:space-between}.justify-content-center{justify-content:center}@media (min-width:576px){.justify-content-sm-center{justify-content:center}}.align-items-center{align-items:center}.card{background-color:var(--global-card-bg-color);background-clip:border-box;border:0;border-radius:.25rem;flex-direction:column;min-width:0;display:flex;box-shadow:0 2px 5px #00000029,0 2px 10px #0000001f}.card-body{padding:calc(var(--spacing)*5);flex:auto}.card-title{margin-bottom:.75rem;font-size:2rem;font-weight:400;line-height:1.2}.card-text{color:#747373;font-size:.9rem;font-weight:400;line-height:1.5}.card-img,.card-img-top{width:100%;display:block}.card-img-top{border-top-left-radius:calc(.25rem - 1px);border-top-right-radius:calc(.25rem - 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ease-in-out;display:inline-block}.btn:hover{color:var(--global-text-color);text-decoration:none}.btn:focus{outline:0}.btn-sm{border-radius:.125rem;padding:.25rem .5rem;font-size:.64rem;line-height:1.5}.btn-outline-primary{border-color:var(--global-theme-color);color:var(--global-theme-color);background:0 0}.btn-outline-primary:hover{background:var(--global-theme-color);color:var(--global-hover-text-color)}.z-depth-0{--tw-shadow:0 0 #0000;box-shadow:var(--tw-inset-shadow),var(--tw-inset-ring-shadow),var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow)}.z-depth-1{box-shadow:0 2px 5px #00000029,0 2px 10px #0000001f}.table{color:#212529;border-collapse:collapse;background-color:#0000;width:100%;margin-bottom:1rem}.table-borderless td,.table-borderless th,.table-borderless thead th,.table-borderless tbody+tbody{border:0!important}.table th,.table td{vertical-align:top;border-top:1px solid var(--global-divider-color);padding:.75rem}.table th{text-align:inherit}.table-sm td,.table-sm th{padding:.6rem .3rem}.table-hover tbody tr:hover{background:var(--global-theme-color)}@supports (color:color-mix(in lab, red, red)){.table-hover tbody tr:hover{background:color-mix(in srgb,var(--global-theme-color)8%,transparent)}}.table-dark{color:#f9fafb;background:#1f2937}.table-responsive{-webkit-overflow-scrolling:touch;width:100%;display:block;overflow-x:auto}.badge{text-align:center;white-space:nowrap;vertical-align:baseline;border-radius:.25rem;padding:.25em 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--tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property 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--tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}@property --tw-ease{syntax:"*";inherits:false}@property --tw-duration{syntax:"*";inherits:false}
/* main.css */
:root{color-scheme:light;--global-bg-color: #ffffff;--global-code-bg-color: rgba(181, 9, 172, 0.05);--global-text-color: #000000;--global-text-color-light: #828282;--global-theme-color: #b509ac;--global-hover-color: #b509ac;--global-hover-text-color: #ffffff;--global-footer-bg-color: #1c1c1d;--global-footer-text-color: #e8e8e8;--global-footer-link-color: #ffffff;--global-distill-app-color: #828282;--global-divider-color: rgba(0, 0, 0, 0.1);--global-card-bg-color: #ffffff;--global-highlight-color: #b71c1c;--global-back-to-top-bg-color: rgba( 0, 0, 0, 0.4 );--global-back-to-top-text-color: #ffffff;--global-newsletter-bg-color: #ffffff;--global-newsletter-text-color: #000000;--global-tip-block: #42b983;--global-tip-block-bg: #e2f5ec;--global-tip-block-text: #215d42;--global-tip-block-title: #359469;--global-warning-block: #e7c000;--global-warning-block-bg: #fff8d8;--global-warning-block-text: #6b5900;--global-warning-block-title: #b29400;--global-danger-block: #c00;--global-danger-block-bg: #ffe0e0;--global-danger-block-text: #600;--global-danger-block-title: #c00}:root #light-toggle-system{display:inline-block}:root #light-toggle-dark{display:none}:root #light-toggle-light{display:none}:root .only-light{display:block}:root .only-dark{display:none}:root #back-to-top{color:var(--global-back-to-top-text-color);background:var(--global-back-to-top-bg-color);bottom:30px;right:30px;height:40px;width:40px;z-index:10}html[data-theme=dark]{color-scheme:dark;--global-bg-color: #1c1c1d;--global-code-bg-color: #2c3237;--global-text-color: #e8e8e8;--global-text-color-light: #828282;--global-theme-color: #2698ba;--global-hover-color: #2698ba;--global-hover-text-color: #ffffff;--global-footer-bg-color: #e8e8e8;--global-footer-text-color: #1c1c1d;--global-footer-link-color: #000000;--global-distill-app-color: #e8e8e8;--global-divider-color: #424246;--global-card-bg-color: #212529;--global-back-to-top-bg-color: rgba( 255, 255, 255, 0.5 );--global-back-to-top-text-color: #000000;--global-newsletter-bg-color: #e8e8e8;--global-newsletter-text-color: #1c1c1d;--global-tip-block: #42b983;--global-tip-block-bg: #215d42;--global-tip-block-text: #beffe2;--global-tip-block-title: #e2f5ec;--global-warning-block: #e7c000;--global-warning-block-bg: #6b5900;--global-warning-block-text: #fff2af;--global-warning-block-title: #fff8d8;--global-danger-block: #c00;--global-danger-block-bg: #600;--global-danger-block-text: #ffb9b9;--global-danger-block-title: #ffe0e0}html[data-theme=dark] .only-light{display:none}html[data-theme=dark] .only-dark{display:block}html[data-theme-setting=dark] #light-toggle-system{display:none}html[data-theme-setting=dark] #light-toggle-dark{display:inline-block}html[data-theme-setting=dark] #light-toggle-light{display:none}html[data-theme-setting=dark] #back-to-top{color:var(--global-back-to-top-text-color);background:var(--global-back-to-top-bg-color)}html[data-theme-setting=light] #light-toggle-system{display:none}html[data-theme-setting=light] #light-toggle-dark{display:none}html[data-theme-setting=light] #light-toggle-light{display:inline-block}.fa-half-sun-moon{position:relative;display:inline-block;--fa-font: var(--fa-font-solid);speak:none;font-style:normal;font-variant:normal;text-rendering:auto;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;width:1em;height:1em}.fa-half-sun-moon::before,.fa-half-sun-moon::after{content:"";position:absolute;inset:0;top:-0.5px;bottom:-0.5px;text-align:center;line-height:1em;clip-path:polygon(0 0, 100% 0, 100% 100%, 0 100%);font:var(--fa-font)}.fa-half-sun-moon::before{content:"";color:var(--global-text-color);clip-path:polygon(0 0, calc(50% - 0.5px) 0, calc(50% - 0.5px) 100%, 0 100%)}.fa-half-sun-moon::after{content:"";color:var(--global-text-color);clip-path:polygon(calc(50% + 0.5px) 0, 100% 0, 100% 100%, calc(50% + 0.5px) 100%);right:-1.5px;transform:translateX(-1px)}#light-toggle:hover .fa-half-sun-moon::before{color:var(--global-theme-color)}#light-toggle:hover .fa-half-sun-moon::after{color:var(--global-theme-color)}body{padding-bottom:70px;color:var(--global-text-color);background-color:var(--global-bg-color)}body h1,body h2,body h3,body h4,body h5,body h6{scroll-margin-top:66px}body.fixed-top-nav{padding-top:57px}body.sticky-bottom-footer{padding-bottom:0}.container{max-width:1040px}.profile img{width:100%}p,h1,h2,h3,h4,h5,h6,em,div,li,span,strong{color:var(--global-text-color)}hr{border-top:1px solid var(--global-divider-color)}table:not(.table) td,table:not(.table) th{font-size:1rem;padding:.45rem 1rem .45rem 0;border-top:1px solid var(--global-divider-color)}table:not(.table) th{font-weight:600}a,table.table a{color:var(--global-theme-color)}a:hover,table.table a:hover{color:var(--global-theme-color);text-decoration:underline}a:hover:after :not(.nav-item.dropdown),table.table a:hover:after :not(.nav-item.dropdown){width:100%}.table-dark{background-color:rgba(0,0,0,0)}.table-dark.table-bordered{border:1px solid var(--global-divider-color) !important}blockquote{background:var(--global-bg-color);border-left:5px solid var(--global-theme-color);margin:1.5em 0;padding:1em;font-size:1.2rem}blockquote p{margin-bottom:0}blockquote.block-tip{border-color:var(--global-tip-block);background-color:var(--global-tip-block-bg)}blockquote.block-tip em,blockquote.block-tip li,blockquote.block-tip p,blockquote.block-tip strong{color:var(--global-tip-block-text)}blockquote.block-tip a,blockquote.block-tip h1,blockquote.block-tip h2,blockquote.block-tip h3,blockquote.block-tip h4,blockquote.block-tip h5,blockquote.block-tip h6{color:var(--global-tip-block-title)}blockquote.block-warning{border-color:var(--global-warning-block);background-color:var(--global-warning-block-bg)}blockquote.block-warning em,blockquote.block-warning li,blockquote.block-warning p,blockquote.block-warning strong{color:var(--global-warning-block-text)}blockquote.block-warning a,blockquote.block-warning h1,blockquote.block-warning h2,blockquote.block-warning h3,blockquote.block-warning h4,blockquote.block-warning h5,blockquote.block-warning h6{color:var(--global-warning-block-title)}blockquote.block-danger{border-color:var(--global-danger-block);background-color:var(--global-danger-block-bg)}blockquote.block-danger em,blockquote.block-danger li,blockquote.block-danger p,blockquote.block-danger strong{color:var(--global-danger-block-text)}blockquote.block-danger a,blockquote.block-danger h1,blockquote.block-danger h2,blockquote.block-danger h3,blockquote.block-danger h4,blockquote.block-danger h5,blockquote.block-danger h6{color:var(--global-danger-block-title)}.navbar{box-shadow:none;border-bottom:1px solid var(--global-divider-color);background-color:var(--global-bg-color);opacity:.95}.navbar .navbar-collapse-main{justify-content:flex-end;text-align:right}.navbar .navbar-menu-list{margin-left:auto}@media(max-width: 575.98px){.navbar .navbar-toggler-main{margin-left:auto}.navbar .navbar-collapse-main{text-align:left}.navbar .navbar-menu-list{margin-left:0;align-items:flex-start;width:100%}.navbar .navbar-menu-list>.nav-item.dropdown{width:100%}.navbar .dropdown-menu{position:static;width:100%;min-width:100%;margin-top:0;text-align:left;box-shadow:none}.navbar .dropdown-item{white-space:normal;text-align:left}}.navbar .dropdown-menu,.btn-group.dropdown .dropdown-menu{background-color:var(--global-bg-color);border:1px solid var(--global-divider-color)}.navbar .dropdown-menu a:not(.active),.btn-group.dropdown .dropdown-menu a:not(.active){color:var(--global-text-color)}.navbar .dropdown-menu a:hover,.btn-group.dropdown .dropdown-menu a:hover{color:var(--global-hover-color)}.navbar .dropdown-menu .dropdown-divider,.btn-group.dropdown .dropdown-menu .dropdown-divider{border-top:1px solid var(--global-divider-color) !important}.dropdown-item{color:var(--global-text-color)}.dropdown-item:hover{color:var(--global-hover-color);background-color:var(--global-bg-color)}.dropdown-item.active,.dropdown-item:active{background-color:var(--global-hover-color);color:var(--global-hover-text-color) !important}.dropdown-item.active:hover,.dropdown-item:active:hover{color:var(--global-hover-text-color)}.navbar.navbar-light a:hover{text-decoration:none}.navbar.navbar-light .navbar-brand{color:var(--global-text-color)}.navbar.navbar-light .navbar-nav .nav-item .nav-link{color:var(--global-text-color)}.navbar.navbar-light .navbar-nav .nav-item .nav-link:hover{color:var(--global-hover-color)}.navbar.navbar-light .navbar-nav .nav-item.active>.nav-link{background-color:inherit;font-weight:bolder;color:var(--global-theme-color)}.navbar.navbar-light .navbar-nav .nav-item.active>.nav-link:hover{color:var(--global-hover-color)}.navbar.navbar-light .navbar-brand.social{padding-bottom:0;padding-top:0;font-size:1.7rem}.navbar.navbar-light .navbar-brand.social a img{width:1.7rem;height:1.7rem;margin-bottom:.5rem}.navbar.navbar-light .navbar-brand.social a svg{width:1.7rem;height:1.7rem;margin-bottom:.5rem}.navbar.navbar-light .navbar-brand.social a svg image{width:1.7rem;height:1.7rem}.navbar.navbar-light .navbar-brand.social a i::before{color:var(--global-text-color);transition-property:all .2s ease-in-out}.navbar.navbar-light .navbar-brand.social a:hover i::before{color:var(--global-theme-color)}.navbar-toggler .icon-bar{display:block;width:22px;height:2px;background-color:var(--global-text-color);border-radius:1px;margin-bottom:4px;transition:all .2s}.navbar-toggler .top-bar{transform:rotate(45deg);transform-origin:10% 10%}.navbar-toggler .middle-bar{opacity:0}.navbar-toggler .bottom-bar{transform:rotate(-45deg);transform-origin:10% 90%}.navbar-toggler.collapsed .top-bar{transform:rotate(0)}.navbar-toggler.collapsed .middle-bar{opacity:1}.navbar-toggler.collapsed .bottom-bar{transform:rotate(0)}#light-toggle{padding:0;border:0;background-color:inherit;color:var(--global-text-color);cursor:pointer;width:2rem;height:2rem;display:inline-flex;align-items:center;justify-content:center}#light-toggle:hover{color:var(--global-hover-color)}@media(min-width: 576px){#light-toggle{transform:translateY(4px)}}#search-toggle{padding:0;border:0;background-color:inherit;color:var(--global-text-color);cursor:pointer}#search-toggle:hover{color:var(--global-hover-color)}footer.fixed-bottom{background-color:var(--global-footer-bg-color);font-size:.75rem}footer.fixed-bottom .container{color:var(--global-footer-text-color);padding-top:9px;padding-bottom:8px;text-align:center}footer.fixed-bottom a{color:var(--global-footer-link-color)}footer.fixed-bottom a:hover{color:var(--global-theme-color);text-decoration:none}footer.sticky-bottom{border-top:1px solid 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480px){.google-calendar-embed{height:400px}}mjx-container[jax=CHTML][display=true]{overflow-x:auto}.tab{display:flex;flex-wrap:wrap;margin-left:-20px;padding:0;list-style:none;position:relative}.tab>*{flex:none;padding-left:20px;position:relative}.tab>*>a{display:block;text-align:center;padding:9px 20px;color:var(--global-text-color-light);border-bottom:2px solid rgba(0,0,0,0);border-bottom-color:rgba(0,0,0,0);font-size:12px;text-transform:uppercase;transition:color .1s ease-in-out;line-height:20px}.tab>.active>a{color:var(--global-text-color);border-color:var(--global-theme-color)}.tab>li>a{text-decoration:none;cursor:pointer}.tab-content{padding:0}.tab-content>li{display:none}.tab-content>li.active{display:block}.courses{margin-top:30px}.year{margin-top:40px;margin-bottom:20px;border-bottom:1px solid var(--global-divider-color);padding-bottom:10px}.course-list{display:grid;grid-template-columns:repeat(auto-fill, minmax(300px, 1fr));gap:20px}.course-item{border:1px solid var(--global-divider-color);border-radius:5px;padding:15px;background-color:var(--global-bg-color);transition:transform .2s ease-in-out}.course-item:hover{transform:translateY(-5px);box-shadow:0 10px 20px rgba(0,0,0,.05)}.course-title{margin-top:0;margin-bottom:10px}.course-meta{font-size:.9rem;color:var(--global-text-color-light);margin-bottom:10px}.course-term,.course-instructor{margin-right:15px}.course-description{font-size:.9rem;margin-bottom:15px}.course-description p{margin-bottom:0}.course-info{margin-bottom:30px}.course-schedule{margin-bottom:30px}.course-schedule table.table{margin-top:.75rem}.course-schedule table.table thead th{background-color:color-mix(in srgb, var(--global-theme-color) 12%, transparent);border-top:0;border-bottom:1px solid var(--global-divider-color);color:var(--global-text-color);font-weight:600;letter-spacing:.01em;padding:.7rem 1rem}.course-schedule table.table tbody td{padding:.72rem 1rem}.schedule-description p{margin-bottom:0}.schedule-materials{padding-left:18px;margin-bottom:0}.typogram .diagram{display:block}.typogram .diagram line,.typogram .diagram circle,.typogram .diagram rect{stroke:var(--global-text-color)}.typogram .diagram line{stroke-width:2}.typogram .diagram circle{r:3.5}.typogram .diagram rect{width:6px;height:6px}.typogram .diagram text,.typogram .glyph,.typogram .debug text{font-family:Iosevka Fixed,monospace;font-size:3em;text-anchor:middle;alignment-baseline:central;white-space:pre;fill:var(--global-text-color)}.typogram .reserved{fill:rgba(0,0,0,0);white-space:pre}.typogram .debug[debug=true] .reserved{fill:var(--global-text-color);opacity:.5}.typogram .debug[debug=true] line.grid{stroke:var(--global-text-color);stroke-width:.2;stroke-linecap:butt;fill:var(--global-text-color);opacity:1%}.typogram polygon{stroke-width:0}.typogram .debug[debug=true] polygon.inner{fill:var(--global-text-color);stroke:var(--global-text-color);opacity:5%}.typogram polygon{stroke:var(--global-text-color);stroke-linecap:butt;fill:var(--global-text-color)}.typogram .debug[debug=true] polygon,.typogram .debug[debug=true] line.grid{opacity:10%}.typogram .debug[debug=true] polygon,.typogram .debug[debug=true] path,.typogram .debug[debug=true] circle{opacity:50%}.typogram .debug[debug=true] polygon{fill:red;stroke:red}.typogram .debug[debug=true] circle,.typogram .debug[debug=true] path{opacity:50%;fill:red}.typogram .debug[debug=true] circle{stroke:red}.typogram .debug[debug=true] .inner{stroke-width:.2}.typogram line.part{stroke-width:6;stroke-linecap:butt;stroke:var(--global-text-color)}.typogram .debug[debug=true] line.part{opacity:50%;stroke:red}.typogram .debug[debug=true] line.center{stroke-width:3;stroke-linecap:butt;opacity:10%;stroke:var(--global-text-color)}.typogram text::selection{fill:HighlightText;background-color:Highlight}/*# sourceMappingURL=main.css.map */
/* custom.css */
:root,
html[data-theme="light"] {
  --max-content-width: 1040px;
  --global-bg-color: #ffffff;
  --global-text-color: #1c1d1a;
  --global-text-color-light: #5e6058;
  --global-theme-color: #1a7a5c;
  --global-hover-color: #125e47;
  --global-hover-text-color: #ffffff;
  --global-divider-color: #e1e5e0;
  --global-card-bg-color: #ffffff;
  --global-code-bg-color: rgba(26, 122, 92, 0.08);
  --global-footer-bg-color: #ffffff;
  --global-footer-text-color: #6a6f69;
  --global-footer-link-color: #1a7a5c;
  --global-tip-block: #1a7a5c;
  --jiayu-muted: color-mix(in srgb, var(--global-text-color) 66%, transparent);
  --jiayu-border: var(--global-divider-color);
  --jiayu-card: var(--global-card-bg-color);
  --jiayu-serif: "Iowan Old Style", "Palatino Linotype", "Songti SC", STSong, Georgia, serif;
  --jiayu-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

html[data-theme="dark"] {
  --global-bg-color: #141512;
  --global-text-color: #e8e6de;
  --global-text-color-light: #9a9b93;
  --global-theme-color: #5ecfa0;
  --global-hover-color: #8fe0bb;
  --global-hover-text-color: #141512;
  --global-divider-color: rgba(232, 230, 222, 0.12);
  --global-card-bg-color: #1b1c19;
  --global-code-bg-color: rgba(94, 207, 160, 0.1);
  --global-footer-bg-color: #0e0f0d;
  --global-footer-text-color: #9a9b93;
  --global-footer-link-color: #e8e6de;
  --global-tip-block: #5ecfa0;
  --jiayu-muted: color-mix(in srgb, var(--global-text-color) 70%, transparent);
}

@media (prefers-color-scheme: dark) {
  html[data-theme="system"] {
    --global-bg-color: #141512;
    --global-text-color: #e8e6de;
    --global-text-color-light: #9a9b93;
    --global-theme-color: #5ecfa0;
    --global-hover-color: #8fe0bb;
    --global-hover-text-color: #141512;
    --global-divider-color: rgba(232, 230, 222, 0.12);
    --global-card-bg-color: #1b1c19;
    --global-code-bg-color: rgba(94, 207, 160, 0.1);
    --global-footer-bg-color: #0e0f0d;
    --global-footer-text-color: #9a9b93;
    --global-footer-link-color: #e8e6de;
    --global-tip-block: #5ecfa0;
    --jiayu-muted: color-mix(in srgb, var(--global-text-color) 70%, transparent);
  }
}

::selection {
  background: color-mix(in srgb, var(--global-theme-color) 22%, transparent);
}

html {
  background: var(--global-bg-color);
}

html[lang="zh-CN"] body {
  font-family: var(--jiayu-sans);
  letter-spacing: 0.012em;
}

body {
  font-family: var(--jiayu-sans);
  letter-spacing: -0.011em;
  color: var(--global-text-color);
  background: var(--global-bg-color);
}

h1,
h2,
.navbar-brand,
.home-intro h1,
.section-heading h2,
.post-header .post-title,
.book-feature h3,
.book-mark {
  font-family: var(--jiayu-serif);
  font-weight: 600;
}

a {
  text-underline-offset: 0.18em;
}

.section-heading p a {
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

article a,
.post a,
.quiet-contact a,
.inline-links a,
.demo-card a,
.case-links a,
.patent-list a,
.open-source-list a,
.project-list a,
.writing-groups a,
.credential-list a {
  color: var(--global-theme-color);
}

article a:hover,
.post a:hover,
.quiet-contact a:hover,
.inline-links a:hover {
  color: var(--global-hover-color);
}

.navbar {
  background: color-mix(in srgb, var(--global-bg-color) 88%, transparent);
  backdrop-filter: saturate(1.2) blur(14px);
  border-bottom: 1px solid var(--global-divider-color);
}

.navbar .container {
  max-width: 1080px;
}

.navbar-brand {
  letter-spacing: -0.03em;
  color: var(--global-text-color) !important;
}

html[lang="zh-CN"] .navbar-brand {
  letter-spacing: 0.04em;
}

.navbar .nav-link {
  color: var(--global-text-color) !important;
  font-size: 0.92rem;
}

.navbar .nav-item.active > .nav-link {
  color: var(--global-theme-color) !important;
  font-weight: 600;
}

.language-switch .nav-link {
  padding: 0.15rem 0.55rem !important;
  border: 1px solid var(--global-divider-color);
  border-radius: 999px;
  color: var(--global-theme-color) !important;
  font-size: 0.78rem !important;
  font-weight: 650;
  letter-spacing: 0.04em;
}

@layer components {
  @media (max-width: 991.98px) {
    .navbar .navbar-toggler-main {
      margin-left: auto;
    }

    .navbar .navbar-collapse-main {
      text-align: left;
    }

    .navbar .navbar-menu-list {
      width: 100%;
      margin-left: 0;
      align-items: flex-start;
      flex-direction: column;
    }

    .navbar-expand-sm .navbar-collapse {
      display: none !important;
      flex-basis: 100%;
      width: 100%;
    }

    .navbar-expand-sm .navbar-collapse.show {
      display: block !important;
    }

    .navbar-expand-sm .navbar-toggler {
      display: block;
    }
  }
}

.post-header {
  margin-bottom: 2.2rem;
  padding-bottom: 1.4rem;
  border-bottom: 1px solid var(--global-divider-color);
}

.post-header .post-title {
  margin-bottom: 0.55rem;
  font-size: clamp(1.85rem, 4vw, 2.55rem);
  letter-spacing: -0.03em;
  line-height: 1.2;
}

html[lang="zh-CN"] .post-header .post-title {
  letter-spacing: 0.02em;
}

.post-description {
  max-width: 42rem;
  margin: 0;
  color: var(--jiayu-muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.home-page {
  padding-top: 0.25rem;
}

.home-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 2.75rem;
  align-items: end;
  padding: 1.1rem 0 2.4rem;
}

.home-intro__portrait {
  width: 220px;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: 55% 20%;
  border: 1px solid var(--global-divider-color);
  border-radius: 3px;
  box-shadow: 0 18px 36px color-mix(in srgb, var(--global-text-color) 10%, transparent);
}

.eyebrow {
  margin: 0 0 0.7rem;
  color: var(--global-theme-color);
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.home-intro h1 {
  margin: 0;
  font-size: clamp(2.35rem, 6vw, 3.7rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

html[lang="zh-CN"] .home-intro h1 {
  letter-spacing: 0.06em;
  font-size: clamp(2.5rem, 7vw, 3.9rem);
}

.home-intro__role {
  margin: 0.85rem 0 0;
  color: var(--jiayu-muted);
  font-family: var(--jiayu-serif);
  font-size: 1.08rem;
}

.home-intro__thesis {
  max-width: 38rem;
  margin: 1.35rem 0 0;
  font-family: var(--jiayu-serif);
  font-size: clamp(1.18rem, 2.2vw, 1.42rem);
  font-weight: 500;
  line-height: 1.5;
}

.home-intro__career {
  max-width: 40rem;
  margin: 0.9rem 0 0;
  color: var(--jiayu-muted);
  line-height: 1.75;
}

.inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1.2rem;
  margin-top: 1.35rem;
  font-size: 0.95rem;
  font-weight: 550;
}

.inline-links .primary-email {
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

.proof-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  padding: 0.35rem 0 2rem;
  color: var(--jiayu-muted);
}

.proof-line span {
  padding: 0.28rem 0.72rem;
  border: 1px solid var(--global-divider-color);
  border-radius: 999px;
  background: var(--global-card-bg-color);
  font-size: 0.78rem;
  line-height: 1.45;
}

.proof-line span:not(:last-child)::after {
  content: none;
}

.home-section,
.content-section {
  padding: 2.6rem 0;
  border-bottom: 1px solid var(--global-divider-color);
}

.home-section:last-of-type,
.content-section:last-of-type {
  border-bottom: 0;
}

.section-heading {
  display: grid;
  grid-template-columns: 8.5rem minmax(0, 1fr);
  gap: 1.25rem;
  margin-bottom: 1.35rem;
  align-items: baseline;
}

.section-heading h2 {
  margin: 0;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

html[lang="zh-CN"] .section-heading h2 {
  letter-spacing: 0.04em;
}

.section-heading p {
  margin: 0;
  max-width: 38rem;
  color: var(--jiayu-muted);
  line-height: 1.7;
}

.direction-list,
.project-list,
.writing-groups,
.research-list,
.open-source-list,
.patent-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.direction-list li,
.project-list li,
.research-list li,
.open-source-list li,
.patent-list li {
  display: grid;
  grid-template-columns: minmax(9.5rem, 0.62fr) minmax(0, 1.5fr);
  gap: 1.15rem;
  padding: 0.95rem 0;
  border-top: 1px solid var(--global-divider-color);
}

.direction-list li:first-child,
.project-list li:first-child,
.research-list li:first-child,
.open-source-list li:first-child,
.patent-list li:first-child {
  border-top-color: transparent;
  padding-top: 0.2rem;
}

.direction-list h3,
.project-list h3,
.research-list h3,
.open-source-list h3,
.patent-list h3 {
  margin: 0;
  font-size: 1rem;
  font-family: var(--jiayu-sans);
  font-weight: 600;
  line-height: 1.45;
}

.direction-list p,
.project-list p,
.research-list p,
.open-source-list p,
.patent-list p {
  margin: 0;
  color: var(--jiayu-muted);
  line-height: 1.7;
}

.patent-group {
  margin: 1.8rem 0 0.35rem;
  color: var(--global-theme-color);
  font-size: 0.74rem;
  font-weight: 650;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.book-feature {
  display: grid;
  grid-template-columns: 7.5rem minmax(0, 1fr);
  gap: 1.4rem;
  padding: 1.35rem 1.4rem 1.4rem;
  border: 1px solid var(--global-divider-color);
  border-radius: 4px;
  background: var(--global-card-bg-color);
}

.book-mark {
  display: grid;
  min-height: 9.5rem;
  place-items: center;
  border-radius: 2px;
  background: var(--global-theme-color);
  color: var(--global-hover-text-color);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-align: center;
}

.book-feature h3 {
  margin: 0 0 0.4rem;
  font-size: 1.22rem;
}

.status-label {
  display: inline-block;
  margin-bottom: 0.65rem;
  color: var(--global-theme-color);
  font-size: 0.74rem;
  font-weight: 650;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.writing-groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.writing-groups > li {
  padding: 1rem 1.05rem 1.1rem;
  border: 1px solid var(--global-divider-color);
  border-top: 2px solid var(--global-theme-color);
  border-radius: 4px;
  background: var(--global-card-bg-color);
}

.writing-groups h3 {
  margin: 0 0 0.7rem;
  font-size: 0.95rem;
}

.writing-groups ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.writing-groups ul li {
  margin: 0.55rem 0;
  line-height: 1.45;
}

.language-badge {
  margin-left: 0.35rem;
  color: var(--jiayu-muted);
  font-size: 0.68rem;
  font-weight: 650;
}

.quiet-contact {
  margin: 1.5rem 0 0.5rem;
  padding: 1.5rem 1.4rem;
  border: 1px solid var(--global-divider-color);
  border-radius: 4px;
  background: var(--global-card-bg-color);
  font-size: 1.02rem;
  line-height: 1.8;
}

.home-social {
  margin-top: 1.35rem;
  text-align: left !important;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 0.4rem 0 2.4rem;
}

.capability-grid article {
  padding: 1.15rem 1.15rem 1.2rem;
  border: 1px solid var(--global-divider-color);
  border-top: 2px solid var(--global-theme-color);
  border-radius: 4px;
  background: var(--global-card-bg-color);
}

.capability-grid h2,
.capability-grid h3 {
  margin: 0 0 0.45rem;
  font-family: var(--jiayu-sans);
  font-size: 1.02rem;
}

.capability-grid p {
  margin: 0;
  color: var(--jiayu-muted);
  line-height: 1.7;
}

.case-study {
  scroll-margin-top: 5rem;
  padding: 2.2rem 0 2.2rem 1.15rem;
  border-top: 1px solid var(--global-divider-color);
  border-left: 2px solid var(--global-theme-color);
}

.work-demos {
  margin: 1.5rem 0 2.4rem;
  padding-top: 2.2rem;
  border-top: 1px solid var(--global-divider-color);
}

.work-demos .section-heading {
  margin-bottom: 1.4rem;
}

.demo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.6rem 1.15rem;
}

.demo-card {
  min-width: 0;
}

.demo-card video {
  display: block;
  width: 100%;
  max-height: 24rem;
  border: 1px solid var(--global-divider-color);
  border-radius: 4px;
  background: #111;
}

.demo-card h3 {
  margin: 0.85rem 0 0.3rem;
  font-family: var(--jiayu-sans);
  font-size: 1rem;
}

.demo-card p {
  margin: 0;
  color: var(--jiayu-muted);
  font-size: 0.92rem;
  line-height: 1.65;
}

.demo-card .demo-card__link,
.case-links {
  margin-top: 0.65rem;
  font-size: 0.92rem;
  font-weight: 550;
}

.case-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

.case-study__meta {
  margin-bottom: 0.4rem;
  color: var(--global-theme-color);
  font-size: 0.74rem;
  font-weight: 650;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.case-study h2 {
  margin-top: 0;
  font-size: 1.45rem;
}

.case-study dl {
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1fr);
  gap: 0.7rem 1.2rem;
  margin-top: 1.25rem;
}

.case-study dt {
  color: var(--global-text-color);
  font-weight: 600;
}

.case-study dd {
  margin: 0;
  color: var(--jiayu-muted);
  line-height: 1.7;
}

.agent-system-map {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: stretch;
  gap: 0.55rem;
  margin: 1.7rem 0 1rem;
}

.agent-system-map > div {
  min-width: 0;
  padding: 0.95rem;
  border: 1px solid var(--global-divider-color);
  border-top: 2px solid var(--global-theme-color);
  border-radius: 4px;
  background: var(--global-card-bg-color);
}

.agent-system-map span,
.agent-system-map strong,
.agent-system-map small {
  display: block;
}

.agent-system-map span {
  margin-bottom: 0.5rem;
  color: var(--global-theme-color);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.agent-system-map strong {
  font-size: 0.9rem;
  line-height: 1.35;
}

.agent-system-map small {
  margin-top: 0.4rem;
  color: var(--jiayu-muted);
  font-size: 0.76rem;
  line-height: 1.5;
}

.agent-system-map i {
  align-self: center;
  color: var(--jiayu-muted);
  font-style: normal;
}

.case-principles {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  color: var(--jiayu-muted);
  font-size: 0.8rem;
  list-style: none;
}

.case-principles li {
  padding: 0.22rem 0.65rem;
  border: 1px solid var(--global-divider-color);
  border-radius: 999px;
  background: var(--global-card-bg-color);
}

.case-principles li::before {
  content: none;
}

.credential-list {
  padding-left: 1.15rem;
}

.credential-list li {
  margin: 0.65rem 0;
  line-height: 1.65;
}

.publications h2 {
  margin-top: 2.4rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--global-divider-color);
  font-size: 1.25rem;
}

.publications .bibliography {
  margin-top: 0.45rem;
}

.publications .bibliography > li {
  margin-bottom: 1.2rem;
  line-height: 1.65;
}

.publication-note {
  max-width: 42rem;
  color: var(--jiayu-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

footer.fixed-bottom,
footer.sticky-bottom,
.page-footer,
#footer {
  border-top: 1px solid color-mix(in srgb, var(--global-footer-text-color) 18%, transparent);
}

@media (max-width: 780px) {
  .home-intro {
    grid-template-columns: 1fr;
    gap: 1.4rem;
    align-items: start;
  }

  .home-intro__portrait {
    grid-row: 1;
    width: 168px;
  }

  .section-heading,
  .direction-list li,
  .project-list li,
  .research-list li,
  .open-source-list li,
  .patent-list li,
  .case-study dl {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

  .writing-groups,
  .capability-grid,
  .demo-grid {
    grid-template-columns: 1fr;
  }

  .book-feature {
    grid-template-columns: 1fr;
  }

  .book-mark {
    min-height: 5.2rem;
  }

  .agent-system-map {
    grid-template-columns: 1fr;
  }

  .agent-system-map i {
    justify-self: center;
    line-height: 0.8;
    transform: rotate(90deg);
  }

  .case-study {
    padding-left: 0.85rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* Editorial portfolio system -------------------------------------------------
   A restrained research-site layer on top of al-folio. The visual hierarchy is
   carried by type, rules, spacing and evidence rather than decorative artwork. */

:root,
html[data-theme="light"] {
  --jiayu-accent-soft: color-mix(in srgb, var(--global-theme-color) 9%, var(--global-card-bg-color));
  --jiayu-surface-raised: color-mix(in srgb, var(--global-card-bg-color) 92%, white);
  --jiayu-shadow: 0 18px 48px color-mix(in srgb, var(--global-text-color) 9%, transparent);
  --jiayu-reading-width: 44rem;
}

html[data-theme="dark"] {
  --jiayu-accent-soft: color-mix(in srgb, var(--global-theme-color) 10%, var(--global-card-bg-color));
  --jiayu-surface-raised: color-mix(in srgb, var(--global-card-bg-color) 96%, white);
  --jiayu-shadow: 0 18px 48px rgba(0, 0, 0, 0.26);
}

@media (prefers-color-scheme: dark) {
  html[data-theme="system"] {
    --jiayu-accent-soft: color-mix(in srgb, var(--global-theme-color) 10%, var(--global-card-bg-color));
    --jiayu-surface-raised: color-mix(in srgb, var(--global-card-bg-color) 96%, white);
    --jiayu-shadow: 0 18px 48px rgba(0, 0, 0, 0.26);
  }
}

body {
  background-image: none;
  font-size: 1rem;
  line-height: 1.68;
}

.container[role="main"] {
  width: min(100%, 1120px);
  max-width: 1120px;
  margin-top: clamp(3rem, 6vw, 4.5rem) !important;
  padding-right: clamp(1.25rem, 4vw, 2.25rem);
  padding-left: clamp(1.25rem, 4vw, 2.25rem);
}

.navbar {
  min-height: 3.75rem;
  background: color-mix(in srgb, var(--global-bg-color) 91%, transparent);
  box-shadow: 0 1px 0 color-mix(in srgb, var(--global-divider-color) 72%, transparent);
}

.navbar .container {
  max-width: 1120px;
  padding-right: clamp(1.25rem, 4vw, 2.25rem);
  padding-left: clamp(1.25rem, 4vw, 2.25rem);
}

.navbar-brand {
  font-size: 1.12rem;
}

.navbar .nav-link {
  position: relative;
  padding-right: 0.66rem !important;
  padding-left: 0.66rem !important;
  color: var(--jiayu-muted) !important;
  font-size: 0.86rem;
  font-weight: 520;
}

.navbar .nav-link:hover,
.navbar .nav-item.active > .nav-link {
  color: var(--global-text-color) !important;
}

.navbar .nav-item.active > .nav-link::after {
  position: absolute;
  right: 0.66rem;
  bottom: 0.18rem;
  left: 0.66rem;
  height: 1px;
  background: var(--global-theme-color);
  content: "";
}

.navbar .language-switch .nav-link::after {
  content: none;
}

.page-shell {
  max-width: 100%;
}

.page-hero {
  position: relative;
  margin-bottom: 2.8rem;
  padding: 0.35rem 0 2.25rem;
  border-bottom: 0;
}

.page-hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    var(--global-theme-color) 0 5.5rem,
    var(--global-divider-color) 5.5rem 100%
  );
  content: "";
}

.page-kicker {
  margin: 0 0 0.65rem;
  color: var(--global-theme-color);
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.post-header .post-title {
  max-width: 50rem;
  margin-bottom: 0.6rem;
  font-size: clamp(2.25rem, 5vw, 3.35rem);
  line-height: 1.08;
}

html[lang="zh-CN"] .post-header .post-title {
  letter-spacing: 0.035em;
}

.post-description {
  max-width: 47rem;
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  line-height: 1.75;
}

.home-page {
  padding-top: 0;
}

.home-intro {
  grid-template-columns: minmax(0, 1fr) 252px;
  gap: clamp(2.5rem, 6vw, 5.5rem);
  align-items: center;
  padding: 1.6rem 0 3.1rem;
}

.home-intro > div {
  position: relative;
}

.home-intro > div::before {
  position: absolute;
  top: 0.15rem;
  left: -1.35rem;
  width: 2px;
  height: 4.3rem;
  background: var(--global-theme-color);
  content: "";
}

.home-intro__portrait {
  width: 252px;
  border: 0;
  border-radius: 2px;
  box-shadow:
    12px 12px 0 var(--jiayu-accent-soft),
    var(--jiayu-shadow);
  filter: saturate(0.82) contrast(1.02);
}

.eyebrow {
  margin-bottom: 0.75rem;
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.home-intro h1 {
  font-size: clamp(3rem, 6.6vw, 4.6rem);
  line-height: 0.98;
}

html[lang="zh-CN"] .home-intro h1 {
  font-size: clamp(3rem, 7vw, 4.65rem);
  letter-spacing: 0.07em;
}

.home-intro__role {
  margin-top: 1rem;
  font-size: 1.07rem;
  letter-spacing: 0.015em;
}

.home-intro__thesis {
  max-width: 41rem;
  margin-top: 1.65rem;
  font-size: clamp(1.28rem, 2.15vw, 1.56rem);
  line-height: 1.52;
}

.home-intro__career {
  max-width: 43rem;
  margin-top: 1rem;
  font-size: 0.98rem;
}

.inline-links {
  gap: 0.75rem 1.25rem;
  align-items: center;
  margin-top: 1.6rem;
}

.inline-links a:first-child {
  display: inline-flex;
  align-items: center;
  min-height: 2.2rem;
  padding: 0.35rem 0.78rem;
  border: 1px solid var(--global-theme-color);
  border-radius: 2px;
  text-decoration: none;
}

.inline-links a:first-child:hover {
  background: var(--global-theme-color);
  color: var(--global-hover-text-color);
}

.inline-links .primary-email {
  text-decoration-thickness: 1px;
  text-decoration-color: color-mix(in srgb, var(--global-theme-color) 58%, transparent);
}

.proof-line {
  display: grid;
  grid-template-columns: 1.4fr 1.35fr repeat(4, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--global-divider-color);
  border-bottom: 1px solid var(--global-divider-color);
}

.proof-line span {
  display: flex;
  min-width: 0;
  min-height: 5.25rem;
  flex-direction: column;
  justify-content: center;
  padding: 0;
  border: 0;
  border-right: 1px solid var(--global-divider-color);
  border-radius: 0;
  background: transparent;
  line-height: 1.25;
}

.proof-line span > a {
  display: flex;
  min-height: 5.25rem;
  flex: 1;
  flex-direction: column;
  justify-content: center;
  padding: 0.85rem 0.9rem;
  color: inherit;
  text-decoration: none;
  transition: background-color 140ms ease;
}

.proof-line span > a:hover {
  background: #f7faf8;
}

.proof-line span > a:hover strong {
  color: var(--global-theme-color);
}

.proof-line span:last-child {
  border-right: 0;
}

.proof-line strong,
.proof-line small {
  display: block;
}

.proof-line strong {
  color: var(--global-text-color);
  font-family: var(--jiayu-serif);
  font-size: 1.06rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.proof-line small {
  margin-top: 0.3rem;
  color: var(--jiayu-muted);
  font-size: 0.7rem;
  line-height: 1.35;
}

.home-section,
.content-section {
  padding: clamp(3.1rem, 6vw, 4.5rem) 0;
}

.section-heading {
  grid-template-columns: 10.5rem minmax(0, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
  align-items: start;
}

.section-heading h2 {
  font-size: clamp(1.35rem, 2.4vw, 1.62rem);
}

.section-heading p {
  max-width: 43rem;
  line-height: 1.75;
}

.direction-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 2.5rem;
  counter-reset: direction;
}

.direction-list li {
  display: block;
  position: relative;
  padding: 1.35rem 0 1.7rem 2.3rem;
  border-top: 1px solid var(--global-divider-color);
  counter-increment: direction;
}

.direction-list li:first-child {
  padding-top: 1.35rem;
  border-top-color: var(--global-divider-color);
}

.direction-list li::before {
  position: absolute;
  top: 1.42rem;
  left: 0;
  color: var(--global-theme-color);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  content: "0" counter(direction);
}

.direction-list h3 {
  margin-bottom: 0.45rem;
  font-size: 1.03rem;
}

.project-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.project-list li,
.project-list li:first-child {
  display: block;
  min-height: 10.2rem;
  padding: 1.4rem 1.45rem 1.55rem;
  border: 1px solid var(--global-divider-color);
  border-radius: 8px;
  background: var(--jiayu-surface-raised);
  transition: border-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.project-list li:hover {
  border-color: color-mix(in srgb, var(--global-theme-color) 56%, var(--global-divider-color));
  box-shadow: 0 12px 30px color-mix(in srgb, var(--global-text-color) 6%, transparent);
  transform: translateY(-2px);
}

.project-list h3 {
  margin-bottom: 0.6rem;
  font-size: 1.05rem;
}

.project-list h3 a {
  text-decoration: none;
}

.project-list h3 a::after {
  margin-left: 0.35rem;
  font-size: 0.85em;
  content: "↗";
}

.book-feature {
  grid-template-columns: 9.4rem minmax(0, 1fr);
  gap: 2rem;
  align-items: center;
  padding: 2rem;
  overflow: hidden;
  border-radius: 10px;
  background:
    linear-gradient(115deg, var(--jiayu-accent-soft), transparent 55%),
    var(--jiayu-surface-raised);
}

.book-cover {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 3;
  border: 1px solid color-mix(in srgb, var(--global-theme-color) 24%, var(--global-divider-color));
  border-radius: 2px 5px 5px 2px;
  background: #f5f0e4;
  box-shadow: 7px 9px 20px color-mix(in srgb, var(--global-text-color) 18%, transparent);
  object-fit: cover;
}

.book-mark {
  position: relative;
  min-height: 11.6rem;
  overflow: hidden;
  border-radius: 2px 6px 6px 2px;
  background: linear-gradient(145deg, #155b48, var(--global-theme-color));
  box-shadow: 7px 8px 18px color-mix(in srgb, var(--global-text-color) 18%, transparent);
  color: #f7f4e9;
}

.book-mark::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0.55rem;
  width: 1px;
  background: rgba(255, 255, 255, 0.24);
  content: "";
}

.book-mark::after {
  position: absolute;
  right: 0.9rem;
  bottom: 0.75rem;
  color: rgba(255, 255, 255, 0.68);
  font-family: var(--jiayu-sans);
  font-size: 0.52rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  content: "ARCHITECTURE · ENGINEERING";
}

.book-feature h3 {
  max-width: 35rem;
  margin-bottom: 0.7rem;
  font-size: clamp(1.25rem, 2.6vw, 1.65rem);
  line-height: 1.35;
}

.book-feature p {
  max-width: 40rem;
  margin-bottom: 0;
  color: var(--jiayu-muted);
  line-height: 1.75;
}

.writing-groups {
  gap: 1rem;
  counter-reset: writing-group;
}

.writing-groups > li {
  position: relative;
  padding: 1.35rem 1.4rem 1.5rem;
  border-top-width: 1px;
  border-radius: 8px;
  counter-increment: writing-group;
}

.writing-groups > li::before {
  position: absolute;
  top: 1.25rem;
  right: 1.2rem;
  color: color-mix(in srgb, var(--global-theme-color) 50%, transparent);
  font-family: var(--jiayu-serif);
  font-size: 0.75rem;
  content: "0" counter(writing-group);
}

.writing-groups h3 {
  margin-bottom: 0.9rem;
  color: var(--global-text-color);
  font-size: 1rem;
}

.writing-groups ul li {
  margin: 0.72rem 0;
  line-height: 1.5;
}

.quiet-contact {
  position: relative;
  margin: 3rem 0 0.75rem;
  padding: 1.8rem 2rem 1.9rem 2.15rem;
  border: 1px solid var(--global-divider-color);
  border-left: 4px solid var(--global-theme-color);
  border-radius: 8px;
  background: linear-gradient(110deg, var(--jiayu-accent-soft), var(--global-card-bg-color));
  font-family: var(--jiayu-serif);
  font-size: clamp(1.04rem, 2vw, 1.22rem);
  line-height: 1.75;
}

.quiet-contact a {
  font-family: var(--jiayu-sans);
  font-size: 0.92em;
  font-weight: 700;
}

.home-social {
  margin-top: 1.7rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--global-divider-color);
}

.home-social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1.35rem;
  font-size: 0.92rem;
  font-weight: 650;
}

.home-social-links a {
  color: var(--global-theme-color);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

#back-to-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 20;
  display: grid;
  width: 2.65rem;
  height: 2.65rem;
  place-items: center;
  border: 1px solid var(--global-divider-color);
  border-radius: 50%;
  background: color-mix(in srgb, var(--global-bg-color) 92%, transparent);
  box-shadow: 0 10px 28px color-mix(in srgb, var(--global-text-color) 13%, transparent);
  color: var(--global-text-color);
  font: 700 1.15rem/1 var(--jiayu-sans);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(0.55rem);
  transition: opacity 160ms ease, transform 160ms ease;
  backdrop-filter: blur(10px);
}

#back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

#back-to-top:focus-visible,
.code-copy:focus-visible {
  outline: 2px solid var(--global-theme-color);
  outline-offset: 3px;
}

.post-content pre {
  position: relative;
}

.code-copy {
  position: absolute;
  top: 0.55rem;
  right: 0.55rem;
  padding: 0.28rem 0.52rem;
  border: 1px solid color-mix(in srgb, var(--global-text-color) 18%, transparent);
  border-radius: 4px;
  background: color-mix(in srgb, var(--global-bg-color) 90%, transparent);
  color: var(--global-text-color);
  font: 600 0.72rem/1.2 var(--jiayu-sans);
  cursor: pointer;
}

.capability-grid {
  gap: 1rem;
  margin: 0 0 2rem;
  counter-reset: capability;
}

.capability-grid article {
  position: relative;
  min-height: 10.2rem;
  padding: 1.45rem 1.5rem 1.55rem 4.4rem;
  border-top-width: 1px;
  border-radius: 8px;
  counter-increment: capability;
}

.capability-grid article::before {
  position: absolute;
  top: 1.48rem;
  left: 1.45rem;
  color: var(--global-theme-color);
  font-family: var(--jiayu-serif);
  font-size: 1.15rem;
  font-weight: 600;
  content: "0" counter(capability);
}

.capability-grid h2,
.capability-grid h3 {
  margin-bottom: 0.55rem;
  font-size: 1.04rem;
}

.section-index {
  position: sticky;
  z-index: 5;
  top: 3.75rem;
  display: flex;
  gap: 0.55rem 1rem;
  align-items: center;
  margin: 0 -0.7rem 2.8rem;
  padding: 0.75rem 0.7rem;
  overflow-x: auto;
  border-top: 1px solid var(--global-divider-color);
  border-bottom: 1px solid var(--global-divider-color);
  background: color-mix(in srgb, var(--global-bg-color) 91%, transparent);
  backdrop-filter: blur(14px);
  scrollbar-width: none;
}

.section-index::-webkit-scrollbar {
  display: none;
}

.section-index span,
.section-index a {
  flex: 0 0 auto;
  font-size: 0.76rem;
  white-space: nowrap;
}

.section-index span {
  color: var(--global-text-color);
  font-weight: 700;
  letter-spacing: 0.06em;
}

.section-index a {
  color: var(--jiayu-muted);
  text-decoration: none;
}

.section-index a:hover {
  color: var(--global-theme-color);
}

.work-demos {
  margin-top: 0;
  padding-top: 1.55rem;
  border-top: 0;
  scroll-margin-top: 8rem;
}

.page-work .page-hero {
  margin-bottom: 1.5rem;
  padding-bottom: 1.45rem;
}

.capability-flags {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.55rem;
  margin: 0 0 1.2rem;
}

.capability-flags a {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 4.3rem;
  flex-direction: column;
  justify-content: center;
  padding: 0.72rem 0.75rem 0.76rem 0.9rem;
  overflow: hidden;
  border: 1px solid var(--global-divider-color);
  border-left: 3px solid var(--global-theme-color);
  border-radius: 4px;
  background: var(--global-bg-color);
  text-decoration: none;
  transition:
    border-color 160ms ease,
    background-color 160ms ease,
    transform 160ms ease;
}

.capability-flags a::after {
  position: absolute;
  top: 0;
  right: 0;
  width: 0.42rem;
  height: 100%;
  background: linear-gradient(135deg, transparent 50%, var(--jiayu-accent-soft) 50%);
  content: "";
  opacity: 0.75;
}

.capability-flags a:hover,
.capability-flags a:focus-visible {
  border-color: color-mix(in srgb, var(--global-theme-color) 45%, var(--global-divider-color));
  background: color-mix(in srgb, var(--jiayu-accent-soft) 35%, var(--global-bg-color));
  transform: translateY(-1px);
}

.capability-flags span {
  overflow: hidden;
  color: var(--global-theme-color);
  font-size: 0.62rem;
  font-weight: 720;
  letter-spacing: 0.075em;
  line-height: 1.25;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
}

.capability-flags strong {
  margin-top: 0.2rem;
  color: var(--global-text-color);
  font-size: 0.83rem;
  font-weight: 680;
  line-height: 1.35;
}

.page-work .section-index {
  margin-bottom: 1.6rem;
}

.demo-grid {
  gap: 1rem;
}

.demo-card {
  padding: 0.7rem 0.7rem 1.1rem;
  border: 1px solid var(--global-divider-color);
  border-radius: 9px;
  background: var(--jiayu-surface-raised);
}

.demo-card video {
  aspect-ratio: 16 / 9;
  max-height: none;
  object-fit: cover;
  border: 0;
  border-radius: 5px;
}

.demo-card > img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
  border-radius: 5px;
  object-fit: cover;
}

.demo-card--photo {
  margin: 0;
}

.demo-card--photo figcaption {
  margin: 0;
}

.demo-card--photo > img {
  object-position: left center;
}

.demo-card h3,
.demo-card p {
  margin-right: 0.45rem;
  margin-left: 0.45rem;
}

.demo-card h3 {
  margin-top: 1rem;
  font-size: 1.04rem;
}

.demo-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.34rem;
  margin: 0.8rem 0.45rem 0;
  padding: 0;
  list-style: none;
}

.demo-tags li {
  margin: 0;
  padding: 0.2rem 0.5rem;
  border: 1px solid color-mix(in srgb, var(--global-theme-color) 20%, var(--global-divider-color));
  border-radius: 999px;
  background: color-mix(in srgb, var(--jiayu-accent-soft) 48%, var(--global-bg-color));
  color: color-mix(in srgb, var(--global-theme-color) 78%, var(--global-text-color));
  font-size: 0.68rem;
  font-weight: 600;
  line-height: 1.35;
}

.case-study {
  margin: 1.1rem 0;
  padding: 2rem 2.1rem 2.15rem;
  border: 1px solid var(--global-divider-color);
  border-left: 3px solid var(--global-theme-color);
  border-radius: 10px;
  background: color-mix(in srgb, var(--global-card-bg-color) 68%, transparent);
}

.case-study__meta {
  margin-bottom: 0.55rem;
}

.case-study h2 {
  margin-bottom: 0;
  font-family: var(--jiayu-serif);
  font-size: clamp(1.48rem, 2.8vw, 1.85rem);
  line-height: 1.28;
}

.case-study__lead {
  max-width: 47rem;
  margin: 0.72rem 0 1.05rem;
  color: color-mix(in srgb, var(--global-text-color) 82%, var(--jiayu-muted));
  font-family: var(--jiayu-serif);
  font-size: 1.04rem;
  line-height: 1.72;
}

.case-study__proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0 0 1.15rem;
  padding: 0;
  border-top: 1px solid var(--global-divider-color);
  border-bottom: 1px solid var(--global-divider-color);
  list-style: none;
}

.case-study__proof li {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
  margin: 0;
  padding: 0.72rem 0.85rem;
  border-right: 1px solid var(--global-divider-color);
}

.case-study__proof li:first-child {
  padding-left: 0;
}

.case-study__proof li:last-child {
  border-right: 0;
}

.case-study__proof strong {
  color: var(--global-text-color);
  font-family: var(--jiayu-serif);
  font-size: 1rem;
  line-height: 1.3;
}

.case-study__proof span {
  margin-top: 0.18rem;
  color: var(--jiayu-muted);
  font-size: 0.7rem;
  line-height: 1.4;
}

.case-study dl {
  grid-template-columns: 6.2rem minmax(0, 1fr);
  gap: 0;
  margin-top: 1.5rem;
  border-top: 1px solid var(--global-divider-color);
}

.case-study dt,
.case-study dd {
  padding-top: 0.78rem;
  padding-bottom: 0.78rem;
  border-bottom: 1px solid var(--global-divider-color);
}

.case-study dt {
  padding-right: 1rem;
  color: var(--global-theme-color);
  font-size: 0.82rem;
  letter-spacing: 0.03em;
}

.case-study dd {
  font-size: 0.96rem;
}

.agent-system-map > div {
  border-top-width: 1px;
  border-radius: 7px;
}

.case-principles li {
  background: transparent;
}

.page-research .page-content > .content-section:first-child {
  padding-top: 0;
}

.page-research .page-content > .content-section:first-child .research-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  counter-reset: research-topic;
}

.page-research .page-content > .content-section:first-child .research-list li,
.page-research .page-content > .content-section:first-child .research-list li:first-child {
  display: block;
  position: relative;
  min-height: 10.5rem;
  padding: 1.4rem 1.5rem 1.5rem 4.2rem;
  border: 1px solid var(--global-divider-color);
  border-radius: 8px;
  background: var(--jiayu-surface-raised);
  counter-increment: research-topic;
}

.page-research .page-content > .content-section:first-child .research-list li::before {
  position: absolute;
  top: 1.45rem;
  left: 1.45rem;
  color: var(--global-theme-color);
  font-family: var(--jiayu-serif);
  font-size: 1.05rem;
  font-weight: 650;
  content: "0" counter(research-topic);
}

.page-research .open-source-list,
.page-research .patent-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 2rem;
}

.page-research .open-source-list li,
.page-research .patent-list li,
.page-research .open-source-list li:first-child,
.page-research .patent-list li:first-child {
  display: block;
  padding: 1.15rem 0 1.35rem;
  border-top: 1px solid var(--global-divider-color);
}

.credential-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.credential-list li {
  position: relative;
  margin: 0;
  padding: 0.78rem 0 0.78rem 1.5rem;
  border-top: 1px solid var(--global-divider-color);
}

.credential-list li::before {
  position: absolute;
  top: 1.34rem;
  left: 0;
  width: 0.42rem;
  height: 0.42rem;
  border: 1px solid var(--global-theme-color);
  border-radius: 50%;
  content: "";
}

.page-profile .content-section:first-child {
  padding-top: 0;
}

.page-profile .content-section > p:not(.quiet-contact) {
  max-width: var(--jiayu-reading-width);
  margin-left: 12rem;
  color: var(--global-text-color);
  font-family: var(--jiayu-serif);
  font-size: 1.08rem;
  line-height: 1.82;
}

.page-writing .content-section {
  padding-top: 2.8rem;
  padding-bottom: 2.8rem;
}

.page-writing .open-source-list li,
.page-writing .open-source-list li:first-child {
  grid-template-columns: minmax(15rem, 0.78fr) minmax(0, 1.22fr);
  gap: 2rem;
  padding: 1.15rem 0 1.3rem;
  border-top: 1px solid var(--global-divider-color);
}

.page-writing .open-source-list h3 {
  font-size: 1.01rem;
}

.publications h2 {
  margin-top: 3rem;
  padding: 0 0 0.75rem;
  border-bottom: 1px solid var(--global-text-color);
  font-size: clamp(1.28rem, 2.6vw, 1.62rem);
}

.publications .bibliography {
  margin: 0;
  padding: 0;
}

.publications .bibliography > li {
  margin: 0;
  padding: 1.35rem 0 1.45rem;
  border-bottom: 1px solid var(--global-divider-color);
  line-height: 1.58;
}

.publications .bibliography .row {
  align-items: start;
}

.publications .bibliography .title {
  margin-bottom: 0.32rem;
  color: var(--global-text-color);
  font-family: var(--jiayu-serif);
  font-size: 1.06rem;
  font-weight: 650;
  line-height: 1.42;
}

.publications .bibliography .author,
.publications .bibliography .periodical {
  color: var(--jiayu-muted);
  font-size: 0.9rem;
}

.publications .bibliography .links {
  margin-top: 0.55rem;
}

.publications .bibliography .links .btn {
  min-width: 2.8rem;
  margin-right: 0.35rem;
  padding: 0.18rem 0.55rem;
  border: 1px solid var(--global-divider-color);
  border-radius: 999px;
  color: var(--global-theme-color);
  font-size: 0.67rem;
  font-weight: 650;
  letter-spacing: 0.04em;
}

.publications .bibliography .links .btn:hover {
  border-color: var(--global-theme-color);
  background: var(--global-theme-color);
  color: var(--global-hover-text-color);
}

.publication-note {
  max-width: 46rem;
  margin-bottom: 2.4rem;
  padding: 1rem 1.1rem;
  border-left: 2px solid var(--global-theme-color);
  background: var(--jiayu-accent-soft);
}

footer.fixed-bottom,
footer.sticky-bottom,
.page-footer,
#footer {
  margin-top: 4rem;
}

@media (max-width: 991.98px) {
  .navbar .navbar-collapse-main {
    margin-top: 0.7rem;
    padding: 0.7rem 0 1rem;
    border-top: 1px solid var(--global-divider-color);
  }

  .navbar .nav-link {
    padding: 0.52rem 0 !important;
  }

  .navbar .nav-item.active > .nav-link::after {
    right: auto;
    bottom: 0.32rem;
    left: 0;
    width: 2rem;
  }

  .language-switch .nav-link {
    display: inline-block;
    margin-top: 0.45rem;
    padding: 0.18rem 0.62rem !important;
  }

  .proof-line {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .proof-line span:nth-child(3),
  .proof-line span:nth-child(6) {
    border-right: 0;
  }

  .proof-line span:nth-child(-n + 3) {
    border-bottom: 1px solid var(--global-divider-color);
  }

  .proof-line span:last-child {
    border-right: 0;
  }

  .agent-system-map {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .agent-system-map i {
    display: none;
  }
}

@media (max-width: 780px) {
  body {
    font-size: 0.96rem;
  }

  .container[role="main"] {
    margin-top: 2.4rem !important;
    padding-right: 1.05rem;
    padding-left: 1.05rem;
  }

  .page-hero {
    margin-bottom: 2rem;
    padding-bottom: 1.65rem;
  }

  .page-kicker {
    margin-bottom: 0.5rem;
  }

  .post-header .post-title {
    font-size: clamp(2.05rem, 12vw, 2.75rem);
  }

  .post-description {
    font-size: 0.96rem;
  }

  .home-intro {
    grid-template-columns: 1fr;
    gap: 1.2rem;
    align-items: start;
    padding: 0.9rem 0 2rem;
  }

  .home-intro > div::before {
    display: none;
  }

  .home-intro__portrait {
    grid-row: auto;
    width: 132px;
    margin-top: 0.2rem;
    box-shadow:
      6px 6px 0 var(--jiayu-accent-soft),
      0 10px 26px color-mix(in srgb, var(--global-text-color) 12%, transparent);
  }

  .home-intro h1,
  html[lang="zh-CN"] .home-intro h1 {
    font-size: clamp(2.45rem, 14vw, 3.15rem);
  }

  .home-intro__role {
    font-size: 0.9rem;
    line-height: 1.5;
  }

  .home-intro__thesis {
    margin-top: 1.35rem;
    font-size: 1.18rem;
  }

  .inline-links {
    gap: 0.65rem 1rem;
  }

  .proof-line {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .proof-line span,
  .proof-line span:nth-child(3),
  .proof-line span:nth-child(6),
  .proof-line span:last-child {
    min-height: 4.7rem;
    border-right: 1px solid var(--global-divider-color);
    border-bottom: 1px solid var(--global-divider-color);
  }

  .proof-line span:nth-child(even) {
    border-right: 0;
  }

  .proof-line span:first-child {
    grid-column: auto;
    border-right: 1px solid var(--global-divider-color);
  }

  .proof-line span:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

  .proof-line strong {
    font-size: 1rem;
  }

  .proof-line span > a {
    min-height: 4.7rem;
    padding: 0.75rem 0.72rem;
  }

  .home-section,
  .content-section {
    padding: 2.65rem 0;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 0.6rem;
    margin-bottom: 1.4rem;
  }

  .direction-list,
  .project-list,
  .page-research .page-content > .content-section:first-child .research-list,
  .page-research .open-source-list,
  .page-research .patent-list {
    grid-template-columns: 1fr;
  }

  .direction-list {
    gap: 0;
  }

  .project-list {
    gap: 0.75rem;
  }

  .project-list li,
  .project-list li:first-child {
    min-height: 0;
    padding: 1.2rem 1.25rem 1.35rem;
  }

  .book-feature {
    grid-template-columns: 6.4rem minmax(0, 1fr);
    gap: 1.2rem;
    align-items: start;
    padding: 1.25rem;
  }

  .book-mark {
    min-height: 8.2rem;
    font-size: 0.88rem;
  }

  .book-mark::after {
    display: none;
  }

  .book-feature h3 {
    font-size: 1.12rem;
  }

  .book-feature p {
    grid-column: 1 / -1;
  }

  .writing-groups {
    gap: 0.75rem;
  }

  .quiet-contact {
    margin-top: 2.4rem;
    padding: 1.35rem 1.25rem 1.45rem 1.4rem;
  }

  .capability-grid article {
    min-height: 0;
    padding: 1.3rem 1.3rem 1.4rem 4rem;
  }

  .capability-flags {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.48rem;
  }

  .capability-flags a {
    min-height: 3.85rem;
    padding: 0.62rem 0.68rem 0.65rem 0.78rem;
  }

  .section-index {
    top: 3.7rem;
    margin-right: -1.05rem;
    margin-left: -1.05rem;
    padding-right: 1.05rem;
    padding-left: 1.05rem;
  }

  .demo-card {
    padding: 0.55rem 0.55rem 1rem;
  }

  .case-study {
    margin: 0.8rem 0;
    padding: 1.35rem 1.25rem 1.45rem;
  }

  .case-study__lead {
    font-size: 1rem;
  }

  .case-study__proof li,
  .case-study__proof li:first-child {
    min-height: 4rem;
    padding: 0.62rem 0.55rem;
  }

  .case-study__proof li:first-child {
    padding-left: 0;
  }

  .case-study dl {
    grid-template-columns: 1fr;
  }

  .case-study dt {
    padding-bottom: 0.15rem;
    border-bottom: 0;
  }

  .case-study dd {
    padding-top: 0;
  }

  .agent-system-map {
    grid-template-columns: 1fr;
  }

  .page-research .page-content > .content-section:first-child .research-list li,
  .page-research .page-content > .content-section:first-child .research-list li:first-child {
    min-height: 0;
  }

  .page-profile .content-section > p:not(.quiet-contact) {
    margin-left: 0;
    font-size: 1.02rem;
  }

  .page-writing .open-source-list li,
  .page-writing .open-source-list li:first-child {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

  .publications .bibliography > li {
    padding: 1.15rem 0 1.3rem;
  }

  .publications .bibliography .title {
    font-size: 1rem;
  }
}

@media (max-width: 440px) {
  .case-study__proof {
    grid-template-columns: 1fr;
  }

  .case-study__proof li,
  .case-study__proof li:first-child {
    min-height: 3.45rem;
    padding: 0.55rem 0;
    border-right: 0;
    border-bottom: 1px solid var(--global-divider-color);
  }

  .case-study__proof li:last-child {
    border-bottom: 0;
  }
}

/* Home restraint: keep the first page closer to an academic profile than a
   campaign landing page. Evidence and links do the selling. */
.page-home .home-intro > div::before {
  display: none;
}

.page-home .home-section-index {
  top: 3.7rem;
  gap: 0.45rem;
  margin: 0 0 1.15rem;
  padding: 0.72rem 0;
  border-top-color: var(--global-text-color);
  background: color-mix(in srgb, var(--global-bg-color) 94%, transparent);
}

.page-home .home-section-index span {
  margin-right: 0.35rem;
  color: var(--global-theme-color);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.page-home .home-section-index a {
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  color: var(--jiayu-muted);
  font-size: 0.78rem;
  transition: background-color 140ms ease, color 140ms ease;
}

.page-home .home-section-index a:hover,
.page-home .home-section-index a:focus-visible {
  background: var(--jiayu-accent-soft);
  color: var(--global-theme-color);
}

.page-home .home-section,
.page-home .quiet-contact {
  scroll-margin-top: 7.2rem;
}

.page-home .inline-links a:first-child {
  min-height: auto;
  padding: 0;
  border: 0;
  border-radius: 0;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-decoration-color: color-mix(in srgb, var(--global-theme-color) 58%, transparent);
}

.page-home .inline-links a:first-child:hover {
  background: transparent;
  color: var(--global-hover-color);
}

.page-home .copy-email {
  appearance: none;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--global-theme-color);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-decoration-color: color-mix(in srgb, var(--global-theme-color) 58%, transparent);
  text-underline-offset: 0.18em;
}

.page-home .copy-email:hover,
.page-home .copy-email:focus-visible,
.page-home .copy-email.is-copied {
  color: var(--global-hover-color);
}

.page-home .copy-email:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--global-theme-color) 48%, transparent);
  outline-offset: 4px;
}

.page-home .direction-list li,
.page-home .direction-list li:first-child {
  padding: 1.25rem 0 1.55rem;
}

.page-home .direction-list li::before {
  display: none;
}

.page-home .project-list {
  gap: 0 2.5rem;
}

.page-home .project-list li,
.page-home .project-list li:first-child,
.page-home .project-list li:hover {
  min-height: 0;
  padding: 1.25rem 0 1.55rem;
  border: 0;
  border-top: 1px solid var(--global-divider-color);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  transform: none;
}

.page-home .project-list h3 a::after {
  content: none;
}

.page-home .publications .author {
  display: none;
}

.page-publications .publications .author {
  display: none;
}

.page-home .home-profile__list {
  margin: 0;
  border-top: 1px solid var(--global-text-color);
}

.page-home .home-profile {
  scroll-margin-top: 5rem;
}

.page-home .home-profile__list > div {
  display: grid;
  grid-template-columns: 9.5rem minmax(0, 1fr);
  gap: 1.5rem;
  padding: 1.15rem 0 1.25rem;
  border-bottom: 1px solid var(--global-divider-color);
}

.page-home .home-profile__list dt {
  color: var(--global-text-color);
  font-weight: 700;
}

.page-home .home-profile__list dd {
  margin: 0;
  color: var(--jiayu-muted);
  line-height: 1.75;
}

.page-home .quiet-contact {
  padding: 1.65rem 0 0;
  border: 0;
  border-top: 1px solid var(--global-divider-color);
  border-radius: 0;
  background: transparent;
  font-family: var(--jiayu-sans);
  font-size: 0.98rem;
}

@media (max-width: 780px) {
  .page-home .home-section-index {
    top: 3.45rem;
    margin-right: -1.05rem;
    margin-left: -1.05rem;
    padding-right: 1.05rem;
    padding-left: 1.05rem;
  }

  .page-home .project-list {
    gap: 0;
  }

  .page-home .home-profile__list > div {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }
}