* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--sans, system-ui, sans-serif); color: var(--ink); background: var(--paper); }
img, svg { display: block; max-width: 100%; }
button, input, textarea { font: inherit; }
button { color: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }
p, h1, h2, h3, figure { margin: 0; }
[hidden] { display: none !important; }
::selection { background: var(--accent); color: var(--on-accent); }
:focus-visible { outline: 3px solid var(--focus, var(--accent)); outline-offset: 4px; }
:lang(zh-CN) { font-synthesis: none; }
.wrap { width: min(100% - 104px, 1312px); margin-inline: auto; }
.skip { position: absolute; left: 1rem; top: -5rem; padding: .75rem 1rem; z-index: 10; background: var(--accent); color: var(--on-accent); }
.skip:focus { top: 1rem; }
.lang { background: none; border: 1px solid currentColor; padding: .42rem .65rem; white-space: nowrap; font-size: .73rem; line-height: 1.2; }
.lang:hover { background: var(--ink); color: var(--paper); }
.brief { width: min(100% - 32px, 550px); max-height: calc(100% - 32px); border: 1px solid var(--ink); color: var(--ink); background: var(--paper); padding: clamp(22px, 5vw, 44px); overflow: auto; }
.brief::backdrop { background: rgb(8 9 14 / 67%); }
.brief form { display: grid; gap: 15px; }
.brief h2 { font-size: clamp(1.5rem, 4vw, 2.25rem); line-height: 1.05; padding-right: 30px; }
.brief p { font-size: .9rem; line-height: 1.5; }
.brief label { display: grid; gap: 7px; font-size: .84rem; font-weight: 600; }
.brief input, .brief textarea { width: 100%; border: 1px solid currentColor; color: var(--ink); background: var(--paper); padding: 10px; border-radius: 0; }
.brief textarea { resize: vertical; }
.brief .close { position: absolute; right: 14px; top: 14px; background: transparent; border: 0; width: 40px; height: 40px; font-size: 1.55rem; }
.brief .download { justify-self: start; border: 0; padding: 12px 18px; font-weight: 700; background: var(--accent); color: var(--on-accent); }
.brief output:empty { display: none; }
.brief output { font-size: .83rem; }
@media (max-width: 760px) { .wrap { width: calc(100% - 36px); } }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}