.site-header{gap:24px}.site-header>nav{gap:24px}.site-header>nav a[aria-current=page]{color:var(--accent)}
/* Keep the page geometry stable even when modal mode locks scrolling. */
html{scrollbar-gutter:stable}
.guide-menu-toggle[hidden]{display:none}.guide-menu-toggle:not([hidden]){position:relative;z-index:80;display:inline-flex;align-items:center;justify-content:center;flex:none;width:44px;height:44px;border:0;background:transparent;padding:8px;color:var(--ink);opacity:1;transition:opacity .12s ease}
/* Larger hover hit target, but it deliberately stops short of Chrome's scrollbar. */
.guide-menu-toggle:not([hidden])::after{content:"";position:absolute;inset:-10px -12px;pointer-events:auto}
.menu-lines{display:block;position:relative;width:26px;height:22px;pointer-events:none}.menu-lines i{display:block;position:absolute;top:10px;left:0;width:26px;height:2px;background:currentColor;transform-origin:center;border-radius:1px;transition:transform .36s cubic-bezier(.22,.72,.2,1),opacity .22s ease}.menu-lines i:nth-child(1){transform:translateY(-7px) rotate(0)}.menu-lines i:nth-child(2){transform:scaleX(1)}.menu-lines i:nth-child(3){transform:translateY(7px) rotate(0)}
.guide-menu-toggle.is-open .menu-lines i:nth-child(1){transform:translateY(0) rotate(45deg)}.guide-menu-toggle.is-open .menu-lines i:nth-child(2){opacity:0;transform:scaleX(.3)}.guide-menu-toggle.is-open .menu-lines i:nth-child(3){transform:translateY(0) rotate(-45deg)}.menu-placeholder{display:inline-block;flex:none;width:44px;height:44px}

/* Full-screen interaction layer. It stays transparent; the glass is on .drawer-surface. */
#guide-drawer{position:fixed;z-index:120;inset:0;margin:0;width:100%;max-width:none;height:100dvh;max-height:none;padding:0;background:transparent;color:var(--ink);border:0;border-radius:0;overflow:hidden;box-shadow:none;opacity:1;transform:none;animation:none}
#guide-drawer::before{content:"";position:fixed;inset:0;background:rgba(18,45,41,.105);opacity:0;pointer-events:none;transition:opacity .34s ease;will-change:opacity}
#guide-drawer.is-open::before{opacity:1}
#guide-drawer::backdrop{background:rgba(18,45,41,.105);backdrop-filter:none;animation:none}

/*
  Two-layer drawer architecture:
  - .drawer-panel only controls the reveal width, so the RIGHT edge never moves.
  - .drawer-surface is a fixed-width translucent backdrop-filter surface.
  Keeping the blur off the clipping/reveal layer avoids the backdrop-root issue
  caused by clip-path and makes the frosted-glass effect visible in Chromium.
*/
.drawer-panel{position:absolute;top:0;right:0;width:0;height:100%;overflow:hidden;transition:width .38s cubic-bezier(.16,1,.3,1) .04s;will-change:width}
#guide-drawer.is-open .drawer-panel{width:min(440px,92vw);transition:width .42s cubic-bezier(.16,1,.3,1) 0s}
.drawer-surface{position:absolute;top:0;right:0;box-sizing:border-box;width:min(440px,92vw);height:100%;overflow:auto;padding:110px 36px 36px;background:linear-gradient(135deg,rgba(250,252,248,.24),rgba(238,245,239,.18));border-left:1px solid rgba(255,255,255,.58);-webkit-backdrop-filter:blur(30px) saturate(165%) brightness(1.035);backdrop-filter:blur(30px) saturate(165%) brightness(1.035);box-shadow:-20px 0 58px rgba(22,61,53,.12),inset 1px 0 0 rgba(255,255,255,.24);isolation:auto}
.drawer-surface::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(105deg,rgba(255,255,255,.20) 0%,rgba(255,255,255,.055) 28%,transparent 58%,rgba(255,255,255,.07) 100%);mix-blend-mode:soft-light}
.drawer-surface>*{position:relative;z-index:1}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){.drawer-surface{background:rgba(244,248,243,.94)}}
#guide-drawer>.guide-menu-toggle{position:absolute;z-index:2}

/* Dedicated in-panel close button so the X never disappears behind the drawer. */
.drawer-close{position:absolute;top:26px;right:28px;z-index:3;width:44px;height:44px;border:0;background:transparent;color:var(--ink);padding:0;display:grid;place-items:center;opacity:0;transform:scale(.86) rotate(-8deg);transition:opacity .20s ease,transform .34s cubic-bezier(.16,1,.3,1)}
.drawer-close span,.drawer-close span::before,.drawer-close span::after{display:block;width:25px;height:2px;border-radius:2px;background:currentColor}
.drawer-close span{position:relative;background:transparent}
.drawer-close span::before,.drawer-close span::after{content:"";position:absolute;left:0;top:0}
.drawer-close span::before{transform:rotate(45deg)}.drawer-close span::after{transform:rotate(-45deg)}
#guide-drawer.is-open .drawer-close{opacity:1;transform:scale(1) rotate(0);transition-delay:.16s}
.drawer-close:hover{opacity:.62}

.drawer-top{border-bottom:1px solid var(--line);padding-bottom:20px;opacity:0;transform:translateX(10px);transition:opacity .22s ease,transform .34s cubic-bezier(.16,1,.3,1)}.drawer-top p{font-size:14px;margin:0}
#guide-drawer.is-open .drawer-top{opacity:1;transform:none;transition-delay:.10s}
#guide-drawer nav{display:flex;flex-direction:column;gap:0;margin:20px 0}
#guide-drawer nav a{padding:18px 0;border-bottom:1px solid rgba(31,67,59,.13);font-size:22px;opacity:0;transform:translateX(22px);transition-property:opacity,transform,color;transition-duration:.17s,.30s,.18s;transition-timing-function:ease,cubic-bezier(.16,1,.3,1),ease}
/* Closing runs in reverse order every time. */
#guide-drawer nav a:nth-child(4){transition-delay:0s}#guide-drawer nav a:nth-child(3){transition-delay:.04s}#guide-drawer nav a:nth-child(2){transition-delay:.08s}#guide-drawer nav a:nth-child(1){transition-delay:.12s}
/* Opening runs 1 -> 4 every time. */
#guide-drawer.is-open nav a{opacity:1;transform:none}
#guide-drawer.is-open nav a:nth-child(1){transition-delay:.13s}#guide-drawer.is-open nav a:nth-child(2){transition-delay:.19s}#guide-drawer.is-open nav a:nth-child(3){transition-delay:.25s}#guide-drawer.is-open nav a:nth-child(4){transition-delay:.31s}
.drawer-note{font-size:13px;color:var(--muted);opacity:0;transform:translateX(12px);transition:opacity .18s ease,transform .32s cubic-bezier(.16,1,.3,1)}
#guide-drawer.is-open .drawer-note{opacity:1;transform:none;transition-delay:.34s}

/* Desktop hover mode remains non-modal and never touches Chrome's scrollbar. */
@media (min-width:801px) and (hover:hover) and (pointer:fine){#guide-drawer{pointer-events:none}#guide-drawer .drawer-panel{pointer-events:auto}.drawer-close{pointer-events:auto}}
.ui-arrow{display:block;flex:none;font-size:22px;line-height:1;font-family:Arial,sans-serif;transition:transform .22s ease}.guide-link{display:inline-flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 0;border-bottom:1px solid var(--accent);color:var(--accent);text-decoration:none;font-weight:600;flex-shrink:0}.guide-link:hover .ui-arrow{transform:translateX(4px)}
.guides-teaser{padding-block:64px;border-bottom:1px solid var(--line)}.latest-heading{display:flex;justify-content:space-between;align-items:center;gap:28px;margin-bottom:32px}.latest-heading h2{font-size:clamp(28px,3vw,38px);line-height:1.25;letter-spacing:-1px;margin:12px 0}
.article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}.article-card{position:relative;min-width:0;display:flex;flex-direction:column;border-top:1px solid var(--line);padding:26px 0 18px;transition:border-color .2s}.article-card:hover,.article-card:focus-within{border-color:var(--accent)}.card-meta{display:flex;flex-wrap:wrap;gap:8px 16px;color:var(--muted);font-size:12px}.card-meta>span{color:var(--accent)}.article-card h3{font-size:24px;line-height:1.35;letter-spacing:-.5px;margin:20px 0 12px}.article-card h3 a{text-decoration:none}.article-card h3 a:after{position:absolute;content:"";inset:0}.article-card p{color:var(--muted);font-size:15px;line-height:1.8;margin:0 0 28px}.card-foot{display:flex;justify-content:space-between;align-items:center;margin-top:auto;font-size:12px;color:var(--muted)}.card-foot .ui-arrow{color:var(--accent)}.article-card:hover .ui-arrow{transform:translateX(4px)}
.guide-hero{padding:85px 0 65px;display:grid;grid-template-columns:1fr 250px;gap:70px;align-items:center}.guide-hero>div{min-width:0}.guide-hero h1{font-size:clamp(38px,4.4vw,64px);line-height:1.12;letter-spacing:-2px;margin:24px 0;white-space:normal}.guide-hero h1 span{color:inherit}.guide-lead{font-size:18px;max-width:680px;color:var(--muted)}.guide-emblem{height:240px;background:var(--sage);position:relative;display:flex;align-items:center;justify-content:center;border:1px solid var(--line)}.guide-emblem>span:first-child{font-size:84px;font-weight:700;letter-spacing:-6px}.emblem-cross{position:absolute;right:24px;top:12px;color:var(--accent);font-size:36px}.emblem-caption{position:absolute;bottom:20px;left:0;right:0;text-align:center;font-size:10px;letter-spacing:2px}
.guide-library{padding:35px 0 75px;border-top:1px solid var(--line)}.library-heading{margin-bottom:26px}.library-heading h2{font-size:20px;margin:0;letter-spacing:-.4px}.guide-domain-note{display:flex;align-items:center;justify-content:space-between;gap:50px;border-block:1px solid var(--line);padding:40px 0}.guide-domain-note h2{font-size:25px;line-height:1.3;letter-spacing:-.4px;margin:10px 0}.guide-domain-note p:not(.eyebrow){font-size:14px;color:var(--muted);max-width:650px}.guide-footer{display:flex;align-items:center;gap:30px;padding-block:35px;font-size:12px;color:var(--muted)}.guide-footer .wordmark{margin-right:auto;color:var(--ink)}.guide-footer>a:last-child{text-underline-offset:4px}
.domain-price{display:flex;flex-direction:column;align-items:flex-start;gap:3px;margin:0 0 20px}.price-label{font-size:12px;color:var(--muted)}.domain-price strong{font-size:29px;line-height:1.25;font-weight:650;letter-spacing:-.7px;font-variant-numeric:tabular-nums}
.article-header{max-width:940px;padding:65px 0 45px;border-bottom:1px solid var(--line)}.article-back{font-size:13px;color:var(--muted);text-underline-offset:5px}.article-header h1{font-size:clamp(36px,4.3vw,62px);line-height:1.15;white-space:normal;letter-spacing:-1.8px;margin:28px 0}.article-meta{display:flex;flex-wrap:wrap;gap:10px 18px;font-size:12px;color:var(--muted)}.article-meta>span:nth-child(2){color:var(--accent)}.article-deck{font-size:21px;line-height:1.6;margin:26px 0 20px;max-width:780px}.article-disclosure{font-size:12px;line-height:1.8;color:var(--muted);max-width:720px}.article-layout{display:grid;grid-template-columns:230px minmax(0,740px);gap:64px;padding:45px 0 80px;align-items:start}.article-toc{position:sticky;top:30px}.article-toc ol{list-style:none;padding:0;margin:20px 0}.article-toc li{margin:0 0 16px}.article-toc a{font-size:13px;color:var(--muted);text-decoration:none;line-height:1.7}.article-toc a:hover{color:var(--accent)}.article-body{font-size:18px;line-height:1.95;min-width:0}.article-body p{margin:0 0 24px}.article-body h2{font-size:29px;line-height:1.4;letter-spacing:-.6px;margin:54px 0 22px;scroll-margin-top:30px}.article-body code{font:inherit;color:var(--ink);background:var(--sage);padding:1px 4px;overflow-wrap:anywhere}.article-body strong{font-weight:650}.article-language{display:none}html[lang=en] [data-article-language=en],html[lang=zh-TW] [data-article-language=zh-TW]{display:block}.article-end{margin-top:50px;padding-top:28px;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}
@media(max-width:1050px){.site-header{gap:16px}.site-header>nav{gap:16px}.site-header .language{padding-left:15px}.guide-hero{grid-template-columns:1fr 190px;gap:30px}.guide-emblem{height:210px}.article-layout{grid-template-columns:190px minmax(0,1fr);gap:35px}}
@media(max-width:800px){.site-header>nav{display:none}.site-header .language{margin-left:auto;border:0;padding-left:0;gap:6px}.site-header .wordmark{font-size:24px}.guide-hero{padding:50px 0 40px;grid-template-columns:1fr}.guide-emblem{display:none}.guide-hero h1{letter-spacing:-1.5px}.guide-domain-note{align-items:flex-start;flex-direction:column;gap:16px}.guides-teaser{padding-block:45px}.latest-heading{align-items:flex-start;flex-direction:column;gap:6px}.latest-heading .guide-link{align-self:flex-end;padding-top:0}.article-grid{grid-template-columns:1fr}.guide-footer{flex-wrap:wrap;gap:15px}.guide-footer .wordmark{width:100%}.guide-footer>a:last-child{margin-left:auto}.article-header{padding-top:40px}.article-header h1{font-size:38px;letter-spacing:-1px}.article-deck{font-size:19px}.article-layout{grid-template-columns:1fr;gap:24px;padding-top:28px}.article-toc{position:static;border-bottom:1px solid var(--line)}.article-body{font-size:17px}.article-body h2{font-size:26px}.drawer-surface{padding-inline:28px}.drawer-close{display:none}}
:lang(zh-TW) .guide-hero h1,:lang(zh-TW) .latest-heading h2,:lang(zh-TW) .guide-domain-note h2,:lang(zh-TW) .article-header h1,:lang(zh-TW) .article-body h2,:lang(zh-TW) .article-card h3{letter-spacing:0}
@media(prefers-reduced-motion:reduce){#guide-drawer,#guide-drawer::before,.drawer-panel,.drawer-top,.drawer-note,.drawer-close,#guide-drawer nav a,.menu-lines i,.is-open .menu-lines i,.ui-arrow,.article-card{transition:none}}

.purchase-actions .negotiation-note{font-size:11px;line-height:1.6;color:var(--muted);max-width:340px;margin:-6px 0 0}

.article-figure{margin:34px 0 40px}.article-figure img{display:block;width:100%;height:auto;max-height:520px;object-fit:cover;border:1px solid var(--line);background:var(--sage)}.article-figure figcaption{margin-top:10px;color:var(--muted);font-size:11px;line-height:1.65}.article-figure .image-credit{display:block}.article-figure a,.article-references a{color:inherit;text-decoration-color:color-mix(in srgb,var(--muted) 55%,transparent);text-underline-offset:3px}.article-figure a:hover,.article-references a:hover{color:var(--accent)}.article-references{margin:16px 0 0;padding-left:22px;color:var(--muted);font-size:14px;line-height:1.75}.article-references li{margin:0 0 13px}.article-body .source-note{font-size:13px;color:var(--muted)}
@media(max-width:800px){.article-figure{margin:28px 0 34px}.article-figure img{max-height:420px}}

.article-body h3{font-size:21px;line-height:1.5;margin:34px 0 16px;letter-spacing:-.2px}.article-list{margin:0 0 26px;padding-left:1.25em}.article-list li{margin:7px 0}.article-list.checklist{list-style:none;padding-left:0}.source-link{font-size:13px!important;overflow-wrap:anywhere}.source-link a{text-underline-offset:3px}.english-article-note{padding:22px 24px;background:var(--sage);border:1px solid var(--line)}.english-article-note ul{margin:18px 0 0;padding-left:1.25em}.english-article-note li{margin:10px 0}.article-body :lang(zh-TW) h3{letter-spacing:0}


.article-table-wrap{overflow-x:auto;margin:24px 0 34px;border:1px solid var(--line);border-radius:10px;background:color-mix(in srgb,var(--paper) 58%,white 42%)}
.article-table{width:100%;border-collapse:collapse;min-width:620px;font-size:14px;line-height:1.65}
.article-table th,.article-table td{padding:15px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
.article-table th{font-size:12px;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);background:color-mix(in srgb,var(--sage) 72%,transparent)}
.article-table tr:last-child td{border-bottom:0}
html[data-theme="dark"] .article-table-wrap{background:rgba(16,28,49,.6)}
@media(max-width:800px){.article-table{font-size:13px}.article-table th,.article-table td{padding:13px 14px}}