/* Standalone extraction of the official site's contact section and dark system. */
.unified-contact {
  --uc-paper: #0a0e15;
  --uc-surface: #0c1017;
  --uc-line: rgba(244, 247, 255, .11);
  --uc-line-strong: rgba(244, 247, 255, .22);
  --uc-ink: #f4f6fb;
  --uc-ink-soft: #c6cad3;
  --uc-muted: #8d949f;
  --uc-faint: #7d8490;
  --uc-brand: #4d74ff;
  --uc-bright: #7895ff;
  --uc-strong: #3f63e6;
  --uc-deep: #3658d7;
  --uc-font: -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Noto Sans CJK SC","Source Han Sans SC","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  position: relative;
  margin: 0;
  padding: clamp(96px, 10vw, 152px) 0;
  border: 0;
  border-bottom: 1px solid var(--uc-line);
  color: var(--uc-ink);
  background: radial-gradient(circle at 70% 54%, rgba(77, 116, 255, .12), transparent 30rem), var(--uc-paper);
  font-family: var(--uc-font);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  color-scheme: dark;
  text-align: left;
  -webkit-font-smoothing: antialiased;
}
.unified-contact,
.unified-contact *,
.unified-contact *::before,
.unified-contact *::after { box-sizing: border-box; }
.unified-contact::before {
  content: "";
  position: absolute;
  top: 0;
  left: clamp(20px, 3.5vw, 56px);
  right: clamp(20px, 3.5vw, 56px);
  height: 1px;
  background: linear-gradient(90deg, var(--uc-brand) 0 68px, var(--uc-line) 68px 100%);
}
.unified-contact a { color: inherit; text-decoration: none; }
.unified-contact button { font: inherit; cursor: pointer; }
.unified-contact a:focus-visible,
.unified-contact button:focus-visible { outline: 2px solid var(--uc-bright); outline-offset: 4px; }
.unified-contact .uc-wrap { width: min(1360px, calc(100% - clamp(40px, 7vw, 112px))); margin-inline: auto; }
.unified-contact .uc-section-head { display: flex; flex-direction: column; align-items: stretch; gap: 22px; margin-bottom: clamp(56px, 6vw, 88px); }
.unified-contact .uc-section-label { display: flex; align-items: center; gap: 14px; font-size: 12px; line-height: 1.5; font-weight: 400; letter-spacing: .16em; color: var(--uc-bright); }
.unified-contact .uc-section-label i { flex: 0 0 32px; height: 1px; background: var(--uc-brand); }
.unified-contact .uc-section-title { max-width: 1100px; margin: 0; color: var(--uc-ink); font-size: clamp(38px, 5.4vw, 72px); font-weight: 800; line-height: 1.15; letter-spacing: -.01em; overflow-wrap: anywhere; }
.unified-contact .uc-section-desc { max-width: 760px; margin: 0; color: var(--uc-muted); font-size: 16px; line-height: 1.75; }
.unified-contact .uc-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 1px; border: 1px solid var(--uc-line); background: var(--uc-line); }
.unified-contact .uc-card { min-width: 0; display: flex; flex-direction: column; padding: 40px clamp(28px, 3vw, 44px); border: 0; border-radius: 0; background: radial-gradient(420px circle at 50% 20%, rgba(77, 116, 255, .08), transparent 48%), var(--uc-surface); }
.unified-contact .uc-card-alt { background-color: #0a1020; }
.unified-contact .uc-card-head { display: flex; align-items: center; margin-bottom: 36px; padding-bottom: 16px; border-bottom: 1px solid var(--uc-line); }
.unified-contact .uc-card-label { color: var(--uc-bright); font-size: 13px; font-weight: 400; line-height: 1.6; letter-spacing: .22em; }
.unified-contact .uc-big { min-width: 0; display: grid; grid-template-columns: 90px minmax(0, 1fr); gap: 20px; align-items: baseline; padding: 22px 0; border-bottom: 1px dashed var(--uc-line); }
.unified-contact .uc-label { min-width: 0; color: var(--uc-faint); font-size: 14px; font-weight: 400; line-height: 1.6; letter-spacing: .18em; }
.unified-contact .uc-value { min-width: 0; color: var(--uc-ink); font-size: clamp(24px, 2.8vw, 36px); font-weight: 800; line-height: 1.2; letter-spacing: 0; overflow-wrap: anywhere; transition: color .2s ease; }
.unified-contact .uc-big[href^="mailto:"] .uc-value { font-size: clamp(18px, 6vw, 36px); }
.unified-contact .uc-channels { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; padding: 24px 0 8px; }
/* 渠道卡单数时最后一张占满一行，宽屏三张并排（v1.37：去掉重复的 Gmail 后剩 3 张） */
.unified-contact .uc-channels > .uc-channel:last-child:nth-child(odd) { grid-column: 1 / -1; }
@media (min-width: 1360px) {
  .unified-contact .uc-channels { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .unified-contact .uc-channels > .uc-channel:last-child:nth-child(odd) { grid-column: auto; }
}
.unified-contact .uc-channel { min-width: 0; display: grid; align-content: start; gap: 10px; padding: 16px; border: 1px solid var(--uc-line); border-radius: 4px; background: rgba(77, 116, 255, .035); transition: border-color .2s ease, background-color .2s ease; -webkit-tap-highlight-color: transparent; }
.unified-contact .uc-channel-label { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--uc-muted); font-size: 12px; font-weight: 400; line-height: 1.4; }
.unified-contact .uc-channel-label > span { color: var(--uc-brand); font-size: 16px; }
.unified-contact .uc-channel-value { min-width: 0; color: var(--uc-ink); font-size: 15px; font-weight: 800; line-height: 1.5; overflow-wrap: anywhere; }
.unified-contact .uc-wechat { width: 100%; margin: 0; border-top: 0; border-right: 0; border-left: 0; border-bottom: 0; color: inherit; background: transparent; text-align: left; grid-template-columns: 90px minmax(0, 1fr) 112px; align-items: center; }
.unified-contact .uc-wechat-copy { min-width: 0; display: grid; gap: 6px; }
.unified-contact .uc-wechat-value { display: block; font-size: clamp(18px, 1.5vw, 22px); line-height: 1.5; }
.unified-contact .uc-wechat-copy small { color: var(--uc-faint); font-size: 12px; font-weight: 400; letter-spacing: 0; }
.unified-contact .uc-qr-thumb { display: block; width: 112px; max-width: 100%; aspect-ratio: 1; overflow: hidden; border: 1px solid var(--uc-line-strong); border-radius: 0; background: #fff; }
.unified-contact .uc-qr-thumb img,
.unified-contact .uc-qr-large img { display: block; width: 100%; height: 100%; max-width: 100%; margin: 0; object-fit: contain; }
.unified-contact .uc-company { flex: 1; display: grid; align-content: start; gap: 22px; margin: 0; padding: 0; }
.unified-contact .uc-company > div { min-width: 0; display: grid; gap: 4px; }
.unified-contact .uc-company dt { margin: 0; color: var(--uc-faint); font-size: 12px; font-weight: 400; line-height: 1.6; letter-spacing: .2em; }
.unified-contact .uc-company dd { min-width: 0; margin: 0; color: var(--uc-ink-soft); font-size: 16px; font-weight: 400; line-height: 1.55; overflow-wrap: anywhere; }
.unified-contact .uc-cooperate { display: inline-flex; align-items: center; justify-content: center; gap: 16px; width: 100%; min-height: 52px; margin-top: 32px; padding: 14px 20px; border: 1px solid var(--uc-strong); border-radius: 2px; color: #fff; background: var(--uc-strong); font-size: 14px; font-weight: 800; line-height: 1.5; }
.unified-contact .uc-cooperate svg { flex: 0 0 14px; width: 14px; height: 14px; }
.unified-contact .uc-dialog { position: fixed; inset: auto; top: 50%; left: 50%; transform: translate(-50%, -50%); width: min(460px, calc(100vw - 32px)); height: auto; min-width: 0; min-height: 0; max-width: none; max-height: calc(100vh - 32px); max-height: calc(100dvh - 32px); margin: 0; padding: 40px clamp(24px, 5vw, 44px) 36px; overflow-y: auto; overflow-x: hidden; border: 1px solid var(--uc-line-strong); border-radius: 2px; color: var(--uc-ink); background: var(--uc-surface); box-shadow: 0 32px 100px rgba(0, 0, 0, .55); font: inherit; text-align: center; }
.unified-contact .uc-dialog:not([open]) { display: none; }
.unified-contact .uc-dialog[open] { display: flex; flex-direction: column; align-items: center; }
.unified-contact .uc-dialog::backdrop { background: rgba(1, 2, 4, .84); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.unified-contact .uc-qr-close { position: absolute; top: 14px; right: 14px; display: grid; place-items: center; width: 36px; height: 36px; padding: 0; border: 1px solid var(--uc-line-strong); border-radius: 2px; color: var(--uc-ink); background: rgba(255, 255, 255, .035); font-size: 26px; font-weight: 400; line-height: 1; }
.unified-contact .uc-dialog-copy { width: 100%; margin-bottom: 24px; }
.unified-contact .uc-dialog-copy h2 { margin: 0 36px 6px; color: var(--uc-ink); font-size: 30px; font-weight: 800; line-height: 1.25; }
.unified-contact .uc-dialog-copy p { margin: 0; color: var(--uc-muted); font-size: 14px; line-height: 1.6; }
.unified-contact .uc-qr-large { flex: 0 0 auto; width: 100%; max-width: 360px; aspect-ratio: 1; overflow: hidden; border: 1px solid var(--uc-line-strong); border-radius: 0; background: #fff; }
.unified-contact .uc-dialog-id { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 8px 12px; width: 100%; margin-top: 14px; color: var(--uc-muted); font-size: 14px; line-height: 1.6; }
.unified-contact .uc-dialog-id strong { color: #fff; font-weight: 800; letter-spacing: .02em; -webkit-user-select: all; user-select: all; }
.unified-contact .uc-copy { min-height: 36px; padding: 7px 12px; border: 1px solid rgba(255, 255, 255, .5); border-radius: 2px; color: #fff; background: transparent; font-size: 12px; line-height: 1.5; }
.unified-contact .uc-copy-status { flex-basis: 100%; min-height: 0; margin: 0; color: #6fdc9c; font-size: 12px; line-height: 1.6; }
.unified-contact .uc-copy-status:empty { display: none; }
@media (hover: hover) and (pointer: fine) {
  .unified-contact .uc-big:hover .uc-value { color: var(--uc-bright); }
  .unified-contact .uc-channel:hover { border-color: var(--uc-brand); background: rgba(77, 116, 255, .09); }
  .unified-contact .uc-cooperate:hover { border-color: var(--uc-deep); background: var(--uc-deep); }
  .unified-contact .uc-copy:hover { background: rgba(255, 255, 255, .08); }
}
@media (max-width: 860px) {
  .unified-contact .uc-grid { grid-template-columns: minmax(0, 1fr); }
  .unified-contact .uc-section-head { gap: 16px; }
  .unified-contact .uc-section-title { font-size: clamp(34px, 8vw, 48px); }
}
@media (max-width: 520px) {
  .unified-contact { padding: 82px 0; }
  .unified-contact .uc-wrap { width: calc(100% - 36px); }
  .unified-contact .uc-section-head { gap: 10px; margin-bottom: 30px; }
  .unified-contact .uc-section-label { gap: 8px; font-size: 12px; letter-spacing: .12em; }
  .unified-contact .uc-section-label i { flex-basis: 20px; }
  .unified-contact .uc-section-title { font-size: 28px; line-height: 1.18; }
  .unified-contact .uc-section-desc { font-size: 14px; line-height: 1.7; }
  .unified-contact .uc-card { padding: 28px 20px; }
  .unified-contact .uc-card-head { margin-bottom: 20px; }
  .unified-contact .uc-big { grid-template-columns: minmax(0, 1fr); gap: 6px; padding: 18px 0; }
  .unified-contact .uc-big[href^="mailto:"] .uc-value { font-size: 20px; }
  .unified-contact .uc-channels { grid-template-columns: minmax(0, 1fr); gap: 10px; padding-top: 20px; }
  .unified-contact .uc-channel { gap: 6px; padding: 14px 16px; }
  .unified-contact .uc-wechat { grid-template-columns: minmax(0, 1fr) 72px; grid-template-areas: "label qr" "value qr"; gap: 6px 12px; align-items: center; }
  .unified-contact .uc-wechat > .uc-label { grid-area: label; align-self: end; }
  .unified-contact .uc-wechat-copy { grid-area: value; align-self: start; }
  .unified-contact .uc-wechat-value { font-size: 18px; }
  .unified-contact .uc-qr-thumb { grid-area: qr; width: 72px; }
  .unified-contact .uc-company { gap: 16px; }
  .unified-contact .uc-company dd { font-size: 14px; }
  .unified-contact .uc-cooperate { min-height: 48px; margin-top: 22px; }
  .unified-contact .uc-dialog { padding: 64px 20px 28px; }
  .unified-contact .uc-dialog-copy h2 { font-size: 26px; }
  .unified-contact .uc-qr-large { max-width: 320px; }
}
@media (prefers-reduced-motion: reduce) {
  .unified-contact .uc-value,
  .unified-contact .uc-channel { transition: none; }
}

/* 完整影片下方的“压缩版”提示：微信弹二维码、飞书作品集外链（v1.9） */
.hd-note {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px 24px;
  flex-wrap: wrap;
  margin: 0;
  padding: 14px 22px;
  border-top: 1px solid rgba(244, 247, 255, .09);
  background: rgba(77, 116, 255, .07);
  color: #aab0bb;
  font-family: -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Noto Sans CJK SC","Source Han Sans SC","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size: 13px;
  line-height: 1.6;
}
.hd-note-text { display: flex; align-items: flex-start; gap: 10px; margin: 0; min-width: 0; flex: 1 1 360px; }
.hd-note-text svg { flex: none; width: 18px; height: 18px; margin-top: 1px; color: #7895ff; }
.hd-note-text strong { color: #f4f6fb; font-weight: 600; }
.hd-note-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.hd-note-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 34px;
  padding: 6px 14px;
  border: 1px solid rgba(244, 247, 255, .22);
  border-radius: 999px;
  background: transparent;
  color: #f4f6fb;
  font: inherit;
  font-size: 12.5px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background .2s, border-color .2s;
}
.hd-note-btn:hover { border-color: #7895ff; background: rgba(77, 116, 255, .16); }
.hd-note-btn.is-primary { border-color: #4d74ff; background: #4d74ff; }
.hd-note-btn.is-primary:hover { background: #3f63e6; }
.hd-note-btn svg { flex: none; width: 16px; height: 16px; }
@media (max-width: 650px) {
  .hd-note { padding: 14px; font-size: 12px; }
  .hd-note-actions { width: 100%; }
  .hd-note-btn { flex: 1 1 0; justify-content: center; }
}

/* 邮箱链接选择菜单（v1.9） */
.mail-menu {
  position: fixed;
  z-index: 2147483000;
  width: min(300px, calc(100vw - 24px));
  padding: 8px;
  border: 1px solid rgba(244, 247, 255, .16);
  border-radius: 14px;
  background: #0f1520;
  box-shadow: 0 18px 50px rgba(0, 0, 0, .45);
  color: #f4f6fb;
  font-family: -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Noto Sans CJK SC","Source Han Sans SC","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size: 14px;
  line-height: 1.5;
  text-align: left;
}
.mail-menu-head { display: flex; flex-direction: column; gap: 2px; margin: 0; padding: 8px 10px 10px; border-bottom: 1px solid rgba(244, 247, 255, .09); }
.mail-menu-head span { color: #8d949f; font-size: 12px; }
.mail-menu-head strong { font-weight: 600; word-break: break-all; }
.mail-menu-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  width: 100%;
  margin: 0;
  padding: 10px;
  border: 0;
  border-radius: 9px;
  background: none;
  color: #e9edf5;
  font: inherit;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}
.mail-menu-item:first-of-type { margin-top: 6px; }
.mail-menu-item:hover, .mail-menu-item:focus-visible { background: rgba(77, 116, 255, .16); outline: none; }
.mail-menu-item svg.ri { width: 18px; height: 18px; margin-top: 1.5px; color: #7895ff; }
.mail-menu-item span { display: flex; flex-direction: column; min-width: 0; }
.mail-menu-item small { color: #8d949f; font-size: 12px; line-height: 1.5; margin-top: 2px; }
.mail-menu-status { display: flex; align-items: center; gap: 6px; min-height: 0; margin: 0; padding: 0 10px; color: #7be0a7; font-size: 12px; }
.mail-menu-status:not(:empty) { padding: 6px 10px 4px; }
.mail-menu-status svg.ri { width: 15px; height: 15px; }