/* Reuse the homepage's terminal palette and scale. Native details needs no JS to open. */
.feature-menu { position: relative; color: var(--text-2); font: 14px var(--font-mono); }
.feature-menu summary { cursor: pointer; padding: 12px 4px; min-height: 44px; }
.feature-menu summary:hover, .feature-menu summary:focus-visible { color: var(--text); }
.feature-menu-links { position: absolute; top: 100%; left: 0; min-width: 192px; padding: 8px 16px; background: var(--bg); border: 1px solid var(--line-strong); border-radius: var(--radius-md); }
.feature-menu .feature-menu-links a { display: block; padding: 12px 4px; min-height: 44px; white-space: nowrap; }
.nav-menu .feature-menu-links { position: static; }
.feature-menu :focus-visible { outline: 2px solid var(--text); outline-offset: 2px; }
.contact-page { --bg: #050805; --panel: rgba(0,255,65,.03); --line: rgba(0,255,65,.22); --text: #00ff41; --text-2: #7bff9e; --radius-md: 4px; --disabled-opacity: .38; --hover-overlay: rgba(0,255,65,.06); margin: 0; background: var(--bg); color: var(--text-2); font: 16px/1.5 "Cascadia Code", "Consolas", "Microsoft YaHei", monospace; }
.contact-page * { box-sizing: border-box; }
.contact-header { max-width: 1040px; margin: auto; padding: 24px; display: flex; justify-content: space-between; gap: 16px; }
.contact-page a { color: var(--text-2); padding: 8px 0; min-height: 44px; }
.contact-page a:hover { color: var(--text); }
.contact-compose { max-width: 960px; margin: 24px auto 48px; padding: 32px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--panel); }
.contact-compose h1 { margin: 0 0 24px; font-size: 24px; color: var(--text); }
.contact-recipient { padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.contact-compose label { display: grid; gap: 8px; margin-top: 16px; min-width: 0; }
.contact-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.contact-compose input, .contact-compose textarea { width: 100%; min-width: 0; min-height: 44px; padding: 12px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--bg); color: var(--text-2); font: inherit; }
.contact-compose textarea { resize: vertical; }
.contact-compose input::placeholder, .contact-compose textarea::placeholder { color: var(--text-2); }
.contact-compose button { min-height: 44px; padding: 8px 24px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--bg); color: var(--text); font: inherit; cursor: pointer; transition: background-color 150ms ease-out; }
.contact-compose button:not(:disabled):hover { background: var(--hover-overlay); }
.contact-compose :disabled { opacity: var(--disabled-opacity); cursor: default; }
.contact-page :focus-visible { outline: 2px solid var(--text); outline-offset: 2px; }
.contact-verification { display: flex; align-items: end; flex-wrap: wrap; gap: 16px; }
.contact-verification label { max-width: 192px; }
.contact-verification img { object-fit: contain; }
.contact-footer { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin-top: 24px; }
.contact-footer span, #captchaHelp { font-size: 13px; }
.contact-footer button { flex-shrink: 0; }
#contactStatus { min-height: 24px; overflow-wrap: anywhere; }
.contact-honeypot { display: none; }
/* 运营主体与备案信息：审核与用户都需要公开可见，不与提示文案抢视觉。 */
.contact-entity { display: grid; gap: 6px; margin: 0 0 20px; padding-bottom: 16px; border-bottom: 1px solid var(--line); font-size: 14px; line-height: 1.9; }
.contact-entity p { margin: 0; display: flex; gap: 12px; flex-wrap: wrap; align-items: baseline; }
.contact-entity span { min-width: 132px; color: var(--text); opacity: .78; }
.contact-entity a { padding: 0; min-height: 0; text-decoration: underline; text-underline-offset: 3px; }
/* Single-column compose layout on narrow mobile screens. */
@media (max-width: 640px) {
  .contact-compose { margin: 16px; padding: 16px; }
  .contact-fields { grid-template-columns: 1fr; gap: 0; }
  .contact-footer { align-items: stretch; flex-direction: column; }
}