/* 声匠首页：功能选择页。颜色沿用 style.css 的主题变量，每个功能一个强调色（浅色 / 深色各一套）。 */
.home .topbar { gap: 16px; }
.home .brand { color: var(--ink); text-decoration: none; }

.home-main { max-width: 1180px; margin: 0 auto; padding: 8px 24px 48px; }

/* ---------- hero */
.hero { text-align: center; padding: 44px 8px 30px; }
.eyebrow { display: inline-block; margin: 0 0 14px; padding: 4px 12px; border-radius: 999px; background: var(--soft);
  color: var(--brand); font-size: 13px; font-weight: 600; letter-spacing: .3px; }
.hero h1 { margin: 0; font-size: clamp(26px, 4.2vw, 40px); line-height: 1.25; letter-spacing: 1px; }
.lead { max-width: 640px; margin: 12px auto 0; color: var(--muted); font-size: 16px; }

/* ---------- feature colours */
.f-tts   { --c: #0f766e; --t: #ddf2ee; }
.f-srt   { --c: #4338ca; --t: #e7e6fd; }
.f-bgm   { --c: #b45309; --t: #fcefd9; }
.f-meet  { --c: #0369a1; --t: #dcedf9; }
.f-live  { --c: #be123c; --t: #fde6ea; }
.f-voice { --c: #7e22ce; --t: #f1e6fd; }
.f-biz   { --c: #334155; --t: #e5e9ef; }
:root[data-theme="dark"] .f-tts   { --c: #5eead4; --t: rgba(94, 234, 212, .13); }
:root[data-theme="dark"] .f-srt   { --c: #a5b4fc; --t: rgba(165, 180, 252, .14); }
:root[data-theme="dark"] .f-bgm   { --c: #fbbf24; --t: rgba(251, 191, 36, .13); }
:root[data-theme="dark"] .f-meet  { --c: #7dd3fc; --t: rgba(125, 211, 252, .13); }
:root[data-theme="dark"] .f-live  { --c: #fda4af; --t: rgba(253, 164, 175, .13); }
:root[data-theme="dark"] .f-voice { --c: #d8b4fe; --t: rgba(216, 180, 254, .13); }
:root[data-theme="dark"] .f-biz   { --c: #cbd5e1; --t: rgba(203, 213, 225, .12); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .f-tts   { --c: #5eead4; --t: rgba(94, 234, 212, .13); }
  :root:not([data-theme="light"]) .f-srt   { --c: #a5b4fc; --t: rgba(165, 180, 252, .14); }
  :root:not([data-theme="light"]) .f-bgm   { --c: #fbbf24; --t: rgba(251, 191, 36, .13); }
  :root:not([data-theme="light"]) .f-meet  { --c: #7dd3fc; --t: rgba(125, 211, 252, .13); }
  :root:not([data-theme="light"]) .f-live  { --c: #fda4af; --t: rgba(253, 164, 175, .13); }
  :root:not([data-theme="light"]) .f-voice { --c: #d8b4fe; --t: rgba(216, 180, 254, .13); }
  :root:not([data-theme="light"]) .f-biz   { --c: #cbd5e1; --t: rgba(203, 213, 225, .12); }
}

/* ---------- icons */
.ico { display: inline-grid; place-items: center; width: 60px; height: 60px; border-radius: 16px; background: var(--t); color: var(--c); flex: none; }
.ico svg { width: 34px; height: 34px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.ico svg .fill { fill: currentColor; stroke: none; }
.ico.sm { width: 44px; height: 44px; border-radius: 12px; }
.ico.sm svg { width: 26px; height: 26px; }

/* ---------- main feature cards */
.feat-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.feat { position: relative; display: flex; flex-direction: column; gap: 10px; padding: 22px 20px 18px; border-radius: 18px;
  background: var(--panel); border: 1px solid var(--line); box-shadow: var(--shadow); color: var(--ink); text-decoration: none;
  overflow: hidden; transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.feat::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: var(--c); opacity: .9; }
.feat:hover, .feat:focus-visible { transform: translateY(-3px); border-color: color-mix(in srgb, var(--c) 45%, var(--line));
  box-shadow: 0 2px 4px rgba(16, 24, 22, .06), 0 14px 34px color-mix(in srgb, var(--c) 18%, transparent); outline: none; }
.feat:focus-visible { box-shadow: 0 0 0 3px color-mix(in srgb, var(--c) 40%, transparent); }
.feat h2 { margin: 6px 0 0; font-size: 20px; font-weight: 700; letter-spacing: .5px; color: var(--ink); }
.feat p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.6; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 2px 0 0; padding: 0; list-style: none; }
.tags li { padding: 2px 9px; border-radius: 999px; font-size: 12px; color: var(--c); background: var(--t); white-space: nowrap; }
.go { margin-top: auto; padding-top: 8px; display: inline-flex; align-items: center; gap: 6px; color: var(--c); font-weight: 600; font-size: 14px; }
.go svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
  transition: transform .18s ease; }
.feat:hover .go svg { transform: translateX(3px); }

/* ---------- shortcuts */
.more { margin-top: 34px; }
.sec-title { margin: 0 0 12px; font-size: 15px; color: var(--muted); font-weight: 600; letter-spacing: .5px; }
.more-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.mini { display: flex; align-items: center; gap: 14px; padding: 14px 16px; border-radius: 14px; background: var(--panel);
  border: 1px solid var(--line); color: var(--ink); text-decoration: none; transition: border-color .18s ease, transform .18s ease; }
.mini:hover, .mini:focus-visible { border-color: color-mix(in srgb, var(--c) 45%, var(--line)); transform: translateY(-2px); outline: none; }
.mini b { display: block; font-size: 15px; }
.mini .muted { display: block; line-height: 1.5; }

/* ---------- promises */
.promise { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 30px; padding: 16px 18px;
  border-radius: 14px; background: var(--soft); }
.promise div { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--ink); }
.promise svg { width: 22px; height: 22px; flex: none; fill: none; stroke: var(--brand); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- about page */
.btn-link { display: inline-flex; align-items: center; justify-content: center; text-decoration: none; color: var(--ink); }
.top-actions .btn-link { padding: 6px 12px; font-size: 14px; }
.about .primary.sm { width: auto; margin: 0; padding: 8px 16px; font-size: 14px; border-radius: 10px; color: #fff; }
.info-grid { display: grid; gap: 14px; }
.info-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.info-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.info { display: flex; gap: 14px; align-items: flex-start; padding: 16px; border-radius: 14px; background: var(--panel); border: 1px solid var(--line); }
.info.col { flex-direction: column; gap: 10px; padding: 20px; border-radius: 18px; box-shadow: var(--shadow); }
.info h3 { margin: 2px 0 4px; font-size: 16px; color: var(--ink); }
.info.col h3 { margin: 4px 0 0; font-size: 18px; }
.info p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.6; }
.contact { display: flex; gap: 18px; align-items: flex-start; margin-top: 34px; padding: 24px; border-radius: 18px; background: var(--soft); }
.contact h2 { margin: 2px 0 6px; font-size: 20px; color: var(--ink); letter-spacing: .5px; }
.contact p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; max-width: 720px; }
.ct-row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 12px; margin-top: 14px; }
.ct-mail { font-size: 20px; font-weight: 700; color: var(--brand); text-decoration: none; letter-spacing: .3px; word-break: break-all; margin-right: 6px; }
.ct-mail:hover { text-decoration: underline; text-underline-offset: 4px; }

/* pre-paint: hide until the language is applied (no layout shift for English visitors) */
.pre-en .topbar, .pre-en .home-main, .pre-en footer { visibility: hidden; }

@media (max-width: 1080px) {
  .feat-grid, .info-grid.four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .more-grid, .promise, .info-grid.three { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .home-main { padding: 4px 16px 36px; }
  .hero { padding: 26px 0 20px; }
  .lead { font-size: 15px; }
  .feat-grid { grid-template-columns: 1fr; gap: 12px; }
  .feat { flex-direction: row; flex-wrap: wrap; align-items: center; column-gap: 14px; row-gap: 8px; padding: 16px; }
  .feat .ico { width: 52px; height: 52px; border-radius: 14px; }
  .feat .ico svg { width: 30px; height: 30px; }
  .feat h2 { margin: 0; flex: 1; font-size: 18px; }
  .feat p, .feat .tags { flex-basis: 100%; }
  .feat .go { display: none; }
  .home .topbar { flex-wrap: nowrap; }
  .info-grid.four { grid-template-columns: 1fr; gap: 12px; }
  .info.col { flex-direction: row; flex-wrap: wrap; align-items: center; column-gap: 14px; padding: 16px; }
  .info.col .ico { width: 48px; height: 48px; border-radius: 13px; }
  .info.col .ico svg { width: 28px; height: 28px; }
  .info.col h3 { flex: 1; margin: 0; }
  .info.col p { flex-basis: 100%; }
  .contact { flex-direction: column; gap: 12px; padding: 18px; }
  .top-actions .btn-link { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .feat, .mini, .go svg { transition: none; }
}