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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, #111827 0, #020617 40%, #020617 100%);
  color: #e5e7eb;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: linear-gradient(to right, rgba(15, 23, 42, 0.96), rgba(30, 64, 175, 0.9));
  border-bottom: 1px solid rgba(148, 163, 184, 0.25);
}

.topbar-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0.8rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: conic-gradient(from 160deg, #f97316, #ec4899, #22c55e, #38bdf8, #f97316);
  padding: 2px;
}

.brand-mark-inner {
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: #020617;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #f9fafb;
  font-weight: 700;
  font-size: 0.9rem;
}

.brand-text strong {
  display: block;
  font-size: 1.1rem;
}

.brand-text span {
  display: block;
  font-size: 0.78rem;
  color: #cbd5f5;
}

.nav-main {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  font-size: 0.9rem;
}

.nav-main a {
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  color: #e5e7eb;
  opacity: 0.85;
}

.nav-main a:hover {
  opacity: 1;
  background: rgba(15, 23, 42, 0.75);
}

.nav-main a.active {
  background: radial-gradient(circle at top, #f97316, #ec4899);
  color: #0b1120;
  font-weight: 600;
  opacity: 1;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: #e5e7eb;
}

.badge-live {
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  background: rgba(34, 197, 94, 0.22);
  border: 1px solid rgba(34, 197, 94, 0.45);
  color: #bbf7d0;
}

.badge-live-dot {
  display: inline-block;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 999px;
  background: #22c55e;
  margin-right: 0.2rem;
}

.layout-main {
  flex: 1;
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 2.5rem;
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2.5fr);
  gap: 1.75rem;
}

.hero-left > h1 {
  font-size: 2.1rem;
  line-height: 1.2;
  margin: 0 0 0.75rem;
}

.hero-highlight {
  background: linear-gradient(to right, #f97316, #ec4899);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: 0.95rem;
  color: #cbd5f5;
  max-width: 34rem;
  line-height: 1.7;
}

.hero-keywords {
  margin-top: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chip {
  padding: 0.22rem 0.7rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.45);
  font-size: 0.78rem;
}

.chip-primary {
  border-color: rgba(248, 250, 252, 0.7);
}

.hero-cta-row {
  margin-top: 1.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  align-items: center;
}

.btn-primary {
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  border: none;
  background: radial-gradient(circle at top left, #f97316, #ec4899);
  color: #0f172a;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 14px 45px rgba(15, 23, 42, 0.7);
}

.btn-secondary {
  padding: 0.55rem 1.05rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  background: rgba(15, 23, 42, 0.7);
  color: #e5e7eb;
  font-size: 0.86rem;
}

.hero-cta-note {
  font-size: 0.75rem;
  color: #9ca3af;
}

.hero-meta-row {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem;
  font-size: 0.76rem;
  color: #9ca3af;
}

.hero-meta-label {
  color: #e5e7eb;
}

.hero-right {
  position: relative;
}

.phone-frame {
  width: min(310px, 100%);
  aspect-ratio: 9 / 16;
  margin-left: auto;
  border-radius: 2rem;
  padding: 0.7rem;
  background: radial-gradient(circle at top, rgba(248, 250, 252, 0.1), rgba(15, 23, 42, 1));
  border: 1px solid rgba(148, 163, 184, 0.4);
  box-shadow: 0 30px 60px rgba(15, 23, 42, 0.95);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.phone-screen {
  flex: 1;
  border-radius: 1.4rem;
  padding: 0.8rem 0.8rem 0.9rem;
  background: radial-gradient(circle at top, #f97316, #ec4899 35%, #0f172a 80%);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.phone-screen-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.65rem;
  color: #fee2e2;
}

.phone-screen-tag {
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.45);
}

.phone-thumb {
  border-radius: 1rem;
  overflow: hidden;
  margin: 0.4rem 0;
  border: 1px solid rgba(248, 250, 252, 0.35);
}

.phone-text {
  font-size: 0.7rem;
  color: #fefce8;
  line-height: 1.5;
}

.phone-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.6rem;
  color: #e5e7eb;
}

.status-pill {
  padding: 0.08rem 0.5rem;
  border-radius: 999px;
  border: 1px solid rgba(248, 250, 252, 0.6);
}

.phone-dock {
  height: 6px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.9);
  margin: 0 auto;
  width: 36%;
}

.floating-card {
  position: absolute;
  left: -0.4rem;
  bottom: -1.2rem;
  width: 180px;
  padding: 0.7rem 0.8rem;
  border-radius: 0.9rem;
  background: rgba(15, 23, 42, 0.98);
  border: 1px solid rgba(148, 163, 184, 0.7);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.9);
  font-size: 0.7rem;
}

.floating-card strong {
  display: block;
  margin-bottom: 0.2rem;
}

.floating-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  margin-top: 0.2rem;
}

.floating-tag {
  padding: 0.08rem 0.35rem;
  border-radius: 999px;
  background: rgba(30, 64, 175, 0.4);
  font-size: 0.6rem;
  color: #bfdbfe;
}

.sections {
  grid-column: 1 / -1;
  margin-top: 2.2rem;
  display: grid;
  grid-template-columns: minmax(0, 2.2fr) minmax(0, 1.8fr);
  gap: 1.5rem;
}

.section-block {
  background: radial-gradient(circle at top left, rgba(15, 23, 42, 0.96), rgba(15, 23, 42, 0.9));
  border-radius: 1.1rem;
  padding: 1.1rem 1.2rem 1.15rem;
  border: 1px solid rgba(30, 64, 175, 0.65);
}

.section-block h2 {
  font-size: 1rem;
  margin: 0 0 0.6rem;
}

.section-block p {
  font-size: 0.88rem;
  color: #e5e7eb;
  line-height: 1.8;
}

.pill-row {
  margin-top: 0.7rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.pill {
  font-size: 0.75rem;
  padding: 0.18rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  color: #cbd5f5;
}

.card-grid {
  margin-top: 0.9rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 0.8rem;
}

.card {
  border-radius: 0.9rem;
  padding: 0.8rem 0.9rem;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(55, 65, 81, 0.9);
}

.card h3 {
  font-size: 0.95rem;
  margin: 0 0 0.3rem;
}

.card p {
  font-size: 0.8rem;
  color: #e5e7eb;
  line-height: 1.7;
}

.card-meta {
  margin-top: 0.45rem;
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  color: #9ca3af;
}

.card-thumb {
  border-radius: 0.7rem;
  overflow: hidden;
  margin-bottom: 0.45rem;
}

.tag-row {
  margin-top: 0.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.tag {
  font-size: 0.7rem;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  background: rgba(30, 64, 175, 0.45);
  color: #dbeafe;
}

.footer {
  border-top: 1px solid rgba(31, 41, 55, 0.9);
  padding: 1.2rem 1.25rem 1.4rem;
  font-size: 0.75rem;
  color: #9ca3af;
  max-width: 1120px;
  margin: 0 auto;
}

.footer a {
  color: #93c5fd;
}

/* 列表页与内容页通用布局 */

.inner-shell {
  max-width: 1040px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 2.5rem;
}

.crumb {
  font-size: 0.76rem;
  color: #9ca3af;
  margin-bottom: 0.8rem;
}

.crumb a {
  color: #bfdbfe;
}

.inner-header {
  margin-bottom: 1rem;
}

.inner-title {
  font-size: 1.4rem;
  margin: 0 0 0.4rem;
}

.inner-sub {
  font-size: 0.86rem;
  color: #cbd5f5;
  max-width: 40rem;
  line-height: 1.8;
}

.inner-meta {
  font-size: 0.74rem;
  color: #9ca3af;
  margin-top: 0.35rem;
}

.list-grid {
  margin-top: 1.2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 0.9rem;
}

.article-list-item {
  border-radius: 0.9rem;
  padding: 0.85rem 0.95rem;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(55, 65, 81, 0.9);
}

.article-list-item h3 {
  font-size: 0.95rem;
  margin: 0 0 0.35rem;
}

.article-list-item p {
  font-size: 0.8rem;
  color: #e5e7eb;
  line-height: 1.7;
}

.article-thumb {
  border-radius: 0.7rem;
  overflow: hidden;
  margin-bottom: 0.45rem;
}

.article-meta {
  margin-top: 0.45rem;
  font-size: 0.72rem;
  color: #9ca3af;
  display: flex;
  justify-content: space-between;
}

.article-body {
  margin-top: 1.1rem;
  font-size: 0.88rem;
  line-height: 1.9;
  color: #e5e7eb;
}

.article-body p {
  margin: 0 0 0.7rem;
}

.article-back-home {
  margin-top: 1.3rem;
  font-size: 0.8rem;
  color: #bfdbfe;
}

.article-back-home a {
  color: #bfdbfe;
  text-decoration: underline;
}

@media (max-width: 900px) {
  .layout-main {
    grid-template-columns: minmax(0, 1fr);
  }

  .sections {
    grid-template-columns: minmax(0, 1fr);
  }

  .floating-card {
    position: static;
    margin-top: 0.8rem;
  }
}

@media (max-width: 720px) {
  .topbar-inner {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
  }

  .nav-main {
    justify-content: center;
    flex-wrap: wrap;
  }

  .layout-main {
    padding-inline: 1rem;
  }

  .hero-left > h1 {
    font-size: 1.6rem;
  }
}