:root{--color-bg: #f7f7f6;--color-surface: #ffffff;--color-text: #121212;--color-muted: #5a5a5a;--color-border: #e2e2e0;--color-accent: #1e3d3a;--color-accent-hover: #0f2422;--font-sans: "IBM Plex Sans", "PingFang TC", "Noto Sans TC", sans-serif;--font-serif: "Noto Serif TC", "Songti TC", "PMingLiU", Georgia, serif;--space-xs: .5rem;--space-sm: .75rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--space-3xl: 4.5rem;--max-width: 40rem;--max-width-wide: 52rem;--gutter: clamp(1.25rem, 5vw, 2.5rem);--header-height: 3.75rem;--radius: .125rem;--line-height: 1.78;--line-height-tight: 1.35;--measure: 38em}*,*:before,*:after{box-sizing:border-box}html{font-size:100%;-webkit-text-size-adjust:100%;scroll-behavior:smooth;hanging-punctuation:first last}body{margin:0;min-height:100vh;font-family:var(--font-sans);font-size:1.0625rem;line-height:var(--line-height);color:var(--color-text);text-rendering:optimizeLegibility;background:radial-gradient(ellipse 80% 50% at 50% -10%,rgba(30,61,58,.04),transparent 55%),var(--color-bg)}img,svg{display:block;max-width:100%}a{color:var(--color-accent);text-decoration-thickness:1px;text-underline-offset:.18em}a:hover{color:var(--color-accent-hover)}:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}.skip-link{position:absolute;left:-9999px;top:var(--space-sm);z-index:1000;padding:var(--space-sm) var(--space-md);background:var(--color-surface);border:1px solid var(--color-border)}.skip-link:focus{left:var(--space-md)}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.container{width:min(calc(100% - 2 * var(--gutter)),var(--max-width-wide));margin-inline:auto}.container--narrow{width:min(calc(100% - 2 * var(--gutter)),var(--max-width))}.site-header{position:sticky;top:0;z-index:100;background:#f7f7f6eb;backdrop-filter:blur(10px);border-bottom:1px solid var(--color-border)}.site-header .container{position:relative}.site-header__inner{display:flex;align-items:center;justify-content:space-between;min-height:var(--header-height);gap:var(--space-md)}.site-logo{display:flex;align-items:center;flex-shrink:0;text-decoration:none;line-height:0}.site-logo:hover{opacity:.75}.site-logo__img{display:block;width:auto;height:1.85rem;max-width:6.5rem;object-fit:contain;object-position:left center}@media(min-width:768px){.site-logo__img{height:2rem;max-width:7rem}}.nav-toggle{display:flex;align-items:center;justify-content:center;width:2.5rem;height:2.5rem;padding:0;border:none;background:transparent;color:var(--color-text);cursor:pointer}.nav-toggle__bars{position:relative;width:1.125rem;height:1.5px;background:currentColor}.nav-toggle__bars:before,.nav-toggle__bars:after{content:"";position:absolute;left:0;width:100%;height:1.5px;background:currentColor;transition:transform .2s ease}.nav-toggle__bars:before{top:-5px}.nav-toggle__bars:after{top:5px}.site-nav{display:none;position:absolute;top:100%;left:calc(-1 * var(--gutter));right:calc(-1 * var(--gutter));background:var(--color-bg);border-bottom:1px solid var(--color-border);padding:var(--space-md) var(--gutter) var(--space-lg)}.site-nav.is-open{display:block}.site-nav__list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.125rem}.site-nav__item{display:flex;align-items:center;width:100%}.site-nav__link{display:flex;align-items:center;width:100%;min-height:2.75rem;padding:var(--space-sm) var(--space-xs);margin-inline:calc(-1 * var(--space-xs));color:var(--color-text);text-decoration:none;font-size:.9375rem;line-height:1.45;letter-spacing:.02em;border-radius:var(--radius)}.site-nav__link:hover,.site-nav__link[aria-current=page]{color:var(--color-accent)}.site-nav__link--cta{margin-top:var(--space-sm);font-weight:500;color:var(--color-accent)}.site-nav__link--lang{min-height:auto;padding:var(--space-sm) 0;font-size:.75rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--color-muted)}@media(min-width:768px){.nav-toggle{display:none}.site-nav{display:block;position:static;border:none;padding:0;background:transparent}.site-nav__list{flex-direction:row;flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:.25rem var(--space-sm);max-width:min(36rem,72vw)}.site-nav__item{width:auto}.site-nav__link{width:auto;min-height:2.25rem;padding:.35rem .4rem;margin-inline:0;font-size:.875rem}.site-nav__link--cta{margin-top:0;margin-left:0}.site-nav__link--lang{padding:.35rem .4rem}}.site-main{padding-block:clamp(var(--space-xl),5vw,var(--space-2xl)) clamp(var(--space-2xl),8vw,var(--space-3xl))}.site-footer{border-top:1px solid var(--color-border);padding-block:clamp(var(--space-xl),4vw,var(--space-2xl));color:var(--color-muted);font-size:.8125rem;line-height:1.55}.site-footer__inner{display:flex;flex-direction:column;gap:var(--space-md)}@media(min-width:768px){.site-footer__inner{flex-direction:row;justify-content:space-between;align-items:center}}.hero{padding-block:clamp(2.5rem,8vw,5rem) var(--space-2xl);max-width:40rem}.hero__claim{margin:0 0 var(--space-xl);font-family:var(--font-serif);font-size:clamp(1.85rem,5.5vw,2.85rem);font-weight:600;line-height:var(--line-height-tight);letter-spacing:.02em;color:var(--color-text);word-break:keep-all;line-break:strict;animation:claim-in .7s ease both}.hero__claim-line{display:block}.hero__claim-line+.hero__claim-line{margin-top:.15em}@keyframes claim-in{0%{opacity:0;transform:translateY(.6rem)}to{opacity:1;transform:none}}.section-nav{display:flex;flex-direction:column;border-top:1px solid var(--color-border);margin-bottom:clamp(var(--space-2xl),6vw,var(--space-3xl));max-width:var(--measure);animation:claim-in .55s ease both}.section-nav__row{display:grid;gap:.35rem;padding:var(--space-lg) 0;border-bottom:1px solid var(--color-border);text-decoration:none;color:inherit;transition:padding-left .2s ease,color .15s ease}.section-nav__row:hover{padding-left:.4rem;color:var(--color-accent)}.section-nav__title{font-family:var(--font-serif);font-size:1.2rem;font-weight:600;line-height:var(--line-height-tight);letter-spacing:.02em}.section-nav__desc{font-size:.9375rem;line-height:1.55;color:var(--color-muted)}.section-nav__row:hover .section-nav__desc{color:var(--color-accent)}@media(min-width:640px){.section-nav__row{grid-template-columns:9.5rem 1fr;align-items:baseline;gap:var(--space-lg) var(--space-xl);padding:var(--space-lg) 0}}.section-heading{margin:0 0 var(--space-md);font-family:var(--font-serif);font-size:.9375rem;font-weight:600;letter-spacing:.06em;color:var(--color-muted)}.section-block{margin-bottom:var(--space-2xl);max-width:var(--measure)}.section-block+.section-block{margin-top:var(--space-2xl);padding-top:var(--space-xl);border-top:1px solid var(--color-border)}.card-grid{display:grid;gap:var(--space-md)}.card{display:block;padding:var(--space-lg) 0;border-bottom:1px solid var(--color-border);text-decoration:none;color:inherit}.card__title{margin:0 0 var(--space-xs);font-family:var(--font-serif);font-size:1.1rem}.card__desc{margin:0;font-size:.9rem;color:var(--color-muted)}.article-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}.article-list__item{padding-block:var(--space-lg);border-bottom:1px solid var(--color-border)}.article-list__item:first-child{border-top:1px solid var(--color-border)}.article-list__link{display:block;text-decoration:none;color:inherit}.article-list__meta{display:block;margin-bottom:.35rem;font-size:.8125rem;letter-spacing:.03em;color:var(--color-muted)}.article-list__title{margin:0;font-family:var(--font-serif);font-size:1.125rem;font-weight:600;line-height:var(--line-height-tight);letter-spacing:.02em}.article-list__link .card__desc{margin:.4rem 0 0;font-size:.9375rem;line-height:1.6;color:var(--color-muted)}.article-list__link:hover .article-list__title{color:var(--color-accent)}.page-header{margin-bottom:clamp(var(--space-xl),5vw,var(--space-2xl));max-width:var(--measure)}.page-header__eyebrow{margin:0 0 var(--space-xs);font-size:.75rem;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--color-muted)}.page-header__title{margin:0 0 var(--space-md);font-family:var(--font-serif);font-size:clamp(1.75rem,4.5vw,2.35rem);font-weight:600;line-height:var(--line-height-tight);letter-spacing:.02em;word-break:keep-all;line-break:strict}.page-header__desc{margin:0;color:var(--color-muted);max-width:34rem;word-break:keep-all;line-break:strict;line-height:var(--line-height);font-size:1.02rem}.page-header+.prose,.page-header+.article-list{margin-top:0}.prose+.article-list{margin-top:var(--space-2xl);max-width:var(--measure)}.page-header+.article-list{max-width:var(--measure)}.prose{font-size:1.0625rem;max-width:var(--measure)}.prose>:first-child{margin-top:0}.prose>:last-child{margin-bottom:0}.prose h2{margin-top:var(--space-2xl);margin-bottom:var(--space-md);font-family:var(--font-serif);font-size:1.35rem;font-weight:600;line-height:var(--line-height-tight)}.prose h3{margin-top:var(--space-xl);margin-bottom:var(--space-sm);font-family:var(--font-serif);font-size:1.15rem;font-weight:600}.prose p,.prose ul,.prose ol{margin-block:var(--space-md)}.prose li+li{margin-top:var(--space-xs)}.prose blockquote{margin:var(--space-xl) 0;padding-left:var(--space-lg);border-left:2px solid var(--color-accent);color:var(--color-muted);font-family:var(--font-serif)}.article-meta{display:flex;flex-wrap:wrap;gap:var(--space-sm) var(--space-md);margin-bottom:var(--space-xl);padding-bottom:var(--space-md);border-bottom:1px solid var(--color-border);font-size:.8rem;color:var(--color-muted)}.article-meta__section{font-weight:500;color:var(--color-text)}.series-group{margin-bottom:var(--space-2xl);max-width:var(--measure)}.series-group__title{margin:0 0 var(--space-md);font-family:var(--font-serif);font-size:1.15rem;font-weight:600}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:2.5rem;padding:0;border:none;background:transparent;color:var(--color-accent);font-family:var(--font-sans);font-size:.95rem;font-weight:500;text-decoration:none;cursor:pointer}.btn:hover{color:var(--color-accent-hover)}.btn--text{gap:.4rem;border-bottom:1px solid currentColor;border-radius:0;padding-bottom:.15rem;min-height:auto;animation:claim-in .7s ease .08s both}.btn--text:after{content:"→";transition:transform .2s ease}.btn--text:hover:after{transform:translate(.2rem)}.btn--primary{padding:.65rem 1.25rem;background:var(--color-text);color:var(--color-bg);min-height:2.75rem}.btn--primary:hover{background:var(--color-accent);color:var(--color-bg)}.placeholder-note{margin:0;padding:var(--space-lg) 0;max-width:var(--measure);color:var(--color-muted);font-size:.9375rem;line-height:1.65;border-top:1px dashed var(--color-border);border-bottom:1px dashed var(--color-border)}