/* 工具站 · 与主站 index.html 同系 */
:root {
  --dc-bg: #232428;
  --dc-deep: #111214;
  --dc-elev: #2b2d31;
  --dc-border: hsla(0, 0%, 100%, 0.06);
  --dc-blurple: #5865f2;
  --dc-blurple-h: #4752c4;
  --dc-green: #23a55a;
  --dc-text: #f2f3f5;
  --dc-muted: #b5bac1;
  --dc-subtle: #949ba4;
  --dc-radius-lg: 16px;
  --dc-radius-xl: 24px;
  --dc-font: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--dc-font);
  background: var(--dc-deep);
  color: var(--dc-text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.page-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 50% -15%, rgba(88, 101, 242, 0.18), transparent 55%),
    linear-gradient(180deg, var(--dc-deep) 0%, #0c0d0f 100%);
}

.tools-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(17, 18, 20, 0.88);
  border-bottom: 1px solid var(--dc-border);
}

.tools-header-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.tools-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--dc-text);
  font-weight: 800;
  font-size: 1rem;
}

.tools-brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--dc-blurple), #7289da);
  display: grid;
  place-items: center;
  font-size: 0.65rem;
  font-weight: 900;
}

.tools-header-link {
  color: var(--dc-muted);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
}

.tools-header-link:hover {
  color: var(--dc-text);
}

.tools-main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.tools-eyebrow {
  margin: 0 0 8px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dc-subtle);
}

.tools-page-title {
  margin: 0 0 10px;
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.tools-page-lead {
  margin: 0 0 36px;
  max-width: 42rem;
  color: var(--dc-muted);
  font-size: 1.05rem;
}

/* 工具首页：语音 70% + 文本 30% */
.tools-hub-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
  gap: 20px;
  align-items: stretch;
}

@media (max-width: 900px) {
  .tools-hub-grid {
    grid-template-columns: 1fr;
  }
}

.tools-hub-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  border-radius: var(--dc-radius-xl);
  border: 1px solid var(--dc-border);
  background: var(--dc-elev);
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.tools-hub-card:hover {
  border-color: hsla(0, 0%, 100%, 0.12);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.tools-hub-card--voice {
  min-height: 420px;
}

.tools-hub-card--text {
  min-height: 280px;
}

.tools-hub-visual {
  flex: 1;
  min-height: 200px;
  background: linear-gradient(145deg, rgba(88, 101, 242, 0.22), rgba(17, 18, 20, 0.6));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.tools-hub-card--text .tools-hub-visual {
  min-height: 120px;
  background: linear-gradient(145deg, rgba(35, 165, 90, 0.15), rgba(17, 18, 20, 0.5));
}

.tools-hub-visual img {
  max-width: 100%;
  max-height: 220px;
  width: auto;
  height: auto;
  border-radius: 16px;
  object-fit: contain;
}

.tools-hub-copy {
  padding: 22px 24px 26px;
}

.tools-hub-tag {
  display: inline-block;
  margin-bottom: 10px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(88, 101, 242, 0.2);
  color: #c8ceff;
}

.tools-hub-card--text .tools-hub-tag {
  background: rgba(35, 165, 90, 0.2);
  color: #9ee6b8;
}

.tools-hub-copy h2 {
  margin: 0 0 8px;
  font-size: clamp(1.25rem, 2.5vw, 1.65rem);
  font-weight: 800;
}

.tools-hub-card--voice .tools-hub-copy h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.tools-hub-copy p {
  margin: 0 0 16px;
  color: var(--dc-muted);
  font-size: 0.95rem;
}

.tools-hub-cta {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--dc-blurple);
}

.tools-hub-card--text .tools-hub-cta {
  color: var(--dc-green);
}

.tools-site-footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px;
  text-align: center;
  font-size: 0.78rem;
  color: var(--dc-subtle);
  border-top: 1px solid var(--dc-border);
}

.tools-site-footer a {
  color: var(--dc-subtle);
  text-decoration: none;
}

.tools-site-footer a:hover {
  color: var(--dc-muted);
  text-decoration: underline;
}

/* —— 语音产品页（Sprout how-to 风） */
.product-main {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.product-hero {
  text-align: center;
  margin-bottom: 56px;
}

.product-hero h1 {
  margin: 0 0 16px;
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.product-hero .lead {
  margin: 0 auto 28px;
  max-width: 36rem;
  font-size: 1.12rem;
  color: var(--dc-muted);
  line-height: 1.6;
}

.product-hero-cta {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 12px;
  background: var(--dc-blurple);
  color: #fff !important;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(88, 101, 242, 0.4);
}

.product-hero-cta:hover {
  background: var(--dc-blurple-h);
}

.product-hero-cta-secondary {
  display: inline-block;
  margin-left: 12px;
  padding: 14px 20px;
  color: var(--dc-muted);
  font-weight: 600;
  text-decoration: none;
  font-size: 0.92rem;
}

.product-section {
  margin-bottom: 48px;
}

.product-section h2 {
  margin: 0 0 20px;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.product-section > p {
  margin: 0 0 20px;
  color: var(--dc-muted);
}

.product-steps {
  display: grid;
  gap: 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.product-step {
  padding: 22px 24px;
  border-radius: var(--dc-radius-lg);
  border: 1px solid var(--dc-border);
  background: rgba(43, 45, 49, 0.6);
}

.product-step h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
  font-weight: 800;
}

.product-step-num {
  display: inline-block;
  margin-right: 8px;
  color: var(--dc-blurple);
}

.product-step p {
  margin: 0;
  color: var(--dc-muted);
  font-size: 0.95rem;
}

.product-modes {
  display: grid;
  gap: 14px;
}

.product-mode {
  padding: 18px 20px;
  border-radius: var(--dc-radius-lg);
  border-left: 3px solid var(--dc-blurple);
  background: rgba(88, 101, 242, 0.08);
}

.product-mode strong {
  display: block;
  margin-bottom: 4px;
}

.product-mode span {
  color: var(--dc-muted);
  font-size: 0.9rem;
}

.product-faq details {
  margin-bottom: 12px;
  padding: 16px 18px;
  border-radius: var(--dc-radius-lg);
  border: 1px solid var(--dc-border);
  background: var(--dc-elev);
}

.product-faq summary {
  font-weight: 700;
  cursor: pointer;
}

.product-faq p {
  margin: 12px 0 0;
  color: var(--dc-muted);
  font-size: 0.92rem;
}

.product-bottom-cta {
  text-align: center;
  padding: 40px 0 0;
}

/* —— A梦人物介绍页（Sprout how-to 叙事，非功能卡片） */
.product-main--persona {
  max-width: 680px;
}

.product-welcome {
  margin-bottom: 48px;
}

.product-welcome h1 {
  margin: 0 0 20px;
  font-size: clamp(2.1rem, 5.5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.12;
  text-align: center;
}

.product-welcome .tagline {
  margin: 0 0 28px;
  text-align: center;
  font-size: 1.15rem;
  color: var(--dc-muted);
  line-height: 1.65;
}

.product-welcome .story {
  margin: 0;
  font-size: 1.02rem;
  color: var(--dc-muted);
  line-height: 1.75;
}

.product-welcome .story strong {
  color: var(--dc-text);
}

.persona-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 24px;
  align-items: center;
  margin-bottom: 52px;
  padding: 28px 26px;
  border-radius: var(--dc-radius-xl);
  border: 1px solid var(--dc-border);
  background: linear-gradient(
    135deg,
    rgba(88, 101, 242, 0.14) 0%,
    rgba(43, 45, 49, 0.85) 55%
  );
}

@media (max-width: 560px) {
  .persona-card {
    grid-template-columns: 1fr;
    text-align: center;
    justify-items: center;
  }
}

.persona-orb {
  width: 112px;
  height: 112px;
  border-radius: 50%;
  flex-shrink: 0;
  background: radial-gradient(
    circle at 35% 30%,
    #9aa8ff 0%,
    var(--dc-blurple) 42%,
    #2d3566 100%
  );
  box-shadow:
    0 0 48px rgba(88, 101, 242, 0.55),
    inset 0 -8px 24px rgba(0, 0, 0, 0.25);
  animation: persona-pulse 4s ease-in-out infinite;
}

@keyframes persona-pulse {
  0%,
  100% {
    transform: scale(1);
    box-shadow:
      0 0 48px rgba(88, 101, 242, 0.5),
      inset 0 -8px 24px rgba(0, 0, 0, 0.25);
  }
  50% {
    transform: scale(1.03);
    box-shadow:
      0 0 64px rgba(88, 101, 242, 0.65),
      inset 0 -8px 24px rgba(0, 0, 0, 0.2);
  }
}

.persona-id h2 {
  margin: 0 0 4px;
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.persona-id .role {
  margin: 0 0 12px;
  font-size: 0.88rem;
  font-weight: 700;
  color: #c8ceff;
  letter-spacing: 0.04em;
}

.persona-id .bio {
  margin: 0;
  font-size: 0.98rem;
  color: var(--dc-muted);
  line-height: 1.6;
}

.product-prose {
  margin: 0 0 20px;
  font-size: 1.02rem;
  color: var(--dc-muted);
  line-height: 1.75;
}

.product-prose em {
  color: var(--dc-text);
  font-style: normal;
  font-weight: 600;
}

.product-pullquote {
  margin: 28px 0 36px;
  padding: 20px 22px;
  border-left: 3px solid var(--dc-blurple);
  border-radius: 0 var(--dc-radius-lg) var(--dc-radius-lg) 0;
  background: rgba(88, 101, 242, 0.1);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--dc-text);
}

.persona-can {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.persona-can li {
  padding: 18px 20px;
  border-radius: var(--dc-radius-lg);
  border: 1px solid var(--dc-border);
  background: var(--dc-elev);
}

.persona-can li h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
  font-weight: 800;
}

.persona-can li p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--dc-muted);
  line-height: 1.55;
}

.persona-can .icon {
  display: block;
  margin-bottom: 8px;
  font-size: 1.2rem;
}

.persona-not {
  margin: 0;
  padding: 18px 20px;
  border-radius: var(--dc-radius-lg);
  background: rgba(0, 0, 0, 0.2);
  border: 1px dashed var(--dc-border);
  font-size: 0.92rem;
  color: var(--dc-subtle);
  line-height: 1.65;
}

.persona-not strong {
  color: var(--dc-muted);
}

.product-roadmap {
  display: grid;
  gap: 16px;
}

.product-roadmap-item {
  padding: 20px 22px;
  border-radius: var(--dc-radius-lg);
  border: 1px solid var(--dc-border);
  background: rgba(43, 45, 49, 0.5);
}

.product-roadmap-item h3 {
  margin: 0 0 6px;
  font-size: 1.08rem;
  font-weight: 800;
}

.product-roadmap-item .meta {
  display: block;
  margin-bottom: 10px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--dc-blurple);
  letter-spacing: 0.04em;
}

.product-roadmap-item p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--dc-muted);
  line-height: 1.55;
}

.product-ready {
  text-align: center;
  margin-top: 56px;
  padding: 40px 24px;
  border-radius: var(--dc-radius-xl);
  background: linear-gradient(
    180deg,
    rgba(88, 101, 242, 0.12) 0%,
    rgba(43, 45, 49, 0.4) 100%
  );
  border: 1px solid var(--dc-border);
}

.product-ready h2 {
  margin: 0 0 12px;
  font-size: 1.5rem;
  font-weight: 800;
}

.product-ready p {
  margin: 0 0 24px;
  color: var(--dc-muted);
  font-size: 0.98rem;
}

/* 工具首页：认识 A梦，不是功能卡片 */
.tools-hub-card--voice .tools-hub-copy h2 {
  font-size: clamp(1.35rem, 2.8vw, 1.85rem);
}

.tools-hub-persona-line {
  margin: 0 0 12px;
  font-size: 0.95rem;
  color: var(--dc-muted);
  font-style: italic;
}