/* CAT 农业 · 数字茶园 — 高端科技视觉系统 */
:root {
  --bg-void: #030712;
  --bg-deep: #0a0f1e;
  --bg-panel: rgba(15, 23, 42, 0.65);
  --bg-panel-solid: #0f172a;
  --bg-elevated: rgba(30, 41, 59, 0.85);
  --primary: #8b5cf6;
  --primary-bright: #a78bfa;
  --cyan: #22d3ee;
  --cyan-dim: rgba(34, 211, 238, 0.15);
  --accent: #fbbf24;
  --accent-hot: #fcd34d;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --border: rgba(139, 92, 246, 0.22);
  --border-bright: rgba(167, 139, 250, 0.45);
  --glow-purple: rgba(139, 92, 246, 0.45);
  --glow-cyan: rgba(34, 211, 238, 0.25);
  --radius: 14px;
  --radius-lg: 22px;
  --font-display: "Orbitron", system-ui, sans-serif;
  --font-body: "DM Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --transition: 220ms cubic-bezier(0.4, 0, 0.2, 1);
  --header-h: 64px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .grid-bg::before {
    animation: none !important;
  }
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--text);
  background: var(--bg-void);
  line-height: 1.65;
  position: relative;
}

.grid-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 100% 70% at 50% -30%, rgba(139, 92, 246, 0.28), transparent 55%),
    radial-gradient(ellipse 50% 50% at 100% 20%, rgba(34, 211, 238, 0.12), transparent),
    radial-gradient(ellipse 40% 40% at 0% 80%, rgba(251, 191, 36, 0.08), transparent),
    var(--bg-void);
}

.grid-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(139, 92, 246, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 92, 246, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black, transparent);
  animation: gridDrift 80s linear infinite;
}

@keyframes gridDrift {
  from {
    transform: translate(0, 0);
  }

  to {
    transform: translate(48px, 48px);
  }
}

a {
  color: var(--primary-bright);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--cyan);
  cursor: pointer;
}

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

img {
  max-width: 100%;
  height: auto;
}

body.nav-open {
  overflow: hidden;
}

/* —— 顶栏（抽屉导航不参与 backdrop 祖先，避免移动端 fixed 失效） —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  padding: 0;
  background: rgba(3, 7, 18, 0.94);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.35);
  overflow: visible;
}

.site-header__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
  min-height: var(--header-h);
  padding: 0.55rem max(1rem, env(safe-area-inset-right)) 0.55rem max(1rem, env(safe-area-inset-left));
  background: rgba(3, 7, 18, 0.88);
  backdrop-filter: blur(12px) saturate(1.25);
  -webkit-backdrop-filter: blur(12px) saturate(1.25);
}

@media (max-width: 767px) {
  .site-header__row {
    position: relative;
    z-index: 250;
  }
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(0.78rem, 3.2vw, 1.05rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  min-width: 0;
  flex-shrink: 1;
}

.brand span {
  color: var(--accent);
  font-weight: 800;
}

.brand-badge {
  font-size: clamp(0.52rem, 2vw, 0.6rem);
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
  padding: 0.15rem 0.35rem;
  border-radius: 4px;
  background: var(--cyan-dim);
  color: var(--cyan);
  border: 1px solid rgba(34, 211, 238, 0.35);
  flex-shrink: 0;
}

.header-meta {
  display: none;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
}

@media (min-width: 900px) {
  .header-meta {
    display: flex;
  }
}

.status-pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.65;
    transform: scale(1.15);
  }
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  min-width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-panel);
  color: var(--text);
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition);
  position: relative;
  z-index: 5;
  flex-shrink: 0;
  touch-action: manipulation;
}

.nav-toggle:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 20px var(--glow-cyan);
}

.nav-toggle-bars,
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  display: block;
  width: 1.2rem;
  height: 2px;
  background: linear-gradient(90deg, var(--text), var(--cyan));
  border-radius: 1px;
  position: relative;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle-bars::before {
  top: -7px;
}

.nav-toggle-bars::after {
  top: 7px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after {
  top: 0;
  transform: rotate(-45deg);
}

/* 置于 header 之后：层级低于顶栏，避免挡住汉堡按钮 */
.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: rgba(2, 6, 23, 0.68);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition), visibility var(--transition);
  cursor: pointer;
}

.nav-overlay.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.nav-main {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.35rem;
  align-items: center;
}

.nav-main a {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 0.4rem 0;
  border-bottom: 2px solid transparent;
  letter-spacing: 0.02em;
}

.nav-main a:hover,
.nav-main a[aria-current="page"] {
  color: var(--text);
  border-bottom-color: var(--cyan);
  text-shadow: 0 0 20px var(--glow-cyan);
}

@media (max-width: 767px) {
  .site-header {
    flex-direction: column;
  }

  .nav-main {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 180;
    width: min(20rem, calc(100vw - 2.5rem));
    max-width: 100%;
    margin: 0;
    padding: calc(var(--header-h) + env(safe-area-inset-top, 0px) + 1rem) max(1.25rem, env(safe-area-inset-right))
      max(1.5rem, env(safe-area-inset-bottom)) max(1.25rem, env(safe-area-inset-left));
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: stretch;
    gap: 0;
    justify-content: flex-start;
    background: linear-gradient(165deg, rgba(15, 23, 42, 0.99), rgba(3, 7, 18, 0.995));
    border-left: 1px solid var(--border-bright);
    box-shadow: -12px 0 48px rgba(0, 0, 0, 0.55);
    transform: translateX(105%);
    transition: transform 280ms cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    isolation: isolate;
    box-sizing: border-box;
  }

  .nav-main.is-open {
    transform: translateX(0);
  }

  .nav-main a {
    display: flex;
    align-items: center;
    min-height: 48px;
    padding: 0.65rem 0;
    border-bottom: 1px solid var(--border);
    font-size: 1rem;
    -webkit-tap-highlight-color: rgba(34, 211, 238, 0.12);
  }

  .nav-main a:last-child {
    border-bottom: none;
  }
}

@media (min-width: 768px) {
  .site-header {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    column-gap: 1.25rem;
    row-gap: 0.5rem;
    padding: 0.5rem max(1.25rem, env(safe-area-inset-right)) 0.5rem max(1.25rem, env(safe-area-inset-left));
    background: rgba(3, 7, 18, 0.92);
  }

  .site-header__row {
    flex: 0 1 auto;
    min-width: 0;
    padding: 0;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    min-height: auto;
  }

  .nav-toggle {
    display: none;
  }

  .nav-overlay {
    display: none !important;
    pointer-events: none !important;
  }

  .nav-main {
    position: static !important;
    transform: none !important;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-end;
    width: auto;
    max-width: none;
    padding: 0;
    margin: 0;
    margin-left: auto;
    background: transparent;
    border: none;
    box-shadow: none;
    overflow: visible;
    flex: 1 1 auto;
    gap: 0.35rem 1.25rem;
  }

  .nav-main a {
    min-height: unset;
    display: inline;
    padding: 0.4rem 0;
  }
}

/* —— 版心 —— */
main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1.5rem max(1rem, env(safe-area-inset-left)) 3.5rem max(1rem, env(safe-area-inset-right));
}

@media (min-width: 768px) {
  main {
    padding-top: 2rem;
    padding-bottom: 4.5rem;
  }
}

/* —— 通用排版 —— */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 0.75rem;
}

.page-hero {
  padding: 1.5rem 0 2.5rem;
}

.page-hero.align-left {
  text-align: left;
}

.page-hero h1,
.page-hero .hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.65rem, 4.2vw, 2.35rem);
  letter-spacing: 0.04em;
  margin: 0 0 0.65rem;
  line-height: 1.15;
  background: linear-gradient(135deg, var(--text) 0%, var(--primary-bright) 45%, var(--cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-hero .tagline {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 40rem;
  margin: 0;
  line-height: 1.6;
}

.page-hero.align-left .tagline {
  max-width: 48rem;
}

.hero {
  text-align: center;
  padding: 3rem 0 3.5rem;
  position: relative;
}

.hero-visual {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
}

.hero-orb--1 {
  width: min(90vw, 420px);
  height: min(90vw, 420px);
  background: var(--primary);
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
}

.hero-orb--2 {
  width: 280px;
  height: 280px;
  background: var(--cyan);
  bottom: 10%;
  right: -5%;
  opacity: 0.25;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 5.5vw, 3.15rem);
  letter-spacing: 0.06em;
  margin: 0 0 1rem;
  line-height: 1.08;
  background: linear-gradient(120deg, #fff 10%, var(--primary-bright) 42%, var(--cyan) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 40px rgba(139, 92, 246, 0.35));
}

.hero .tagline {
  color: var(--text-muted);
  font-size: 1.08rem;
  max-width: 34rem;
  margin: 0 auto 2.25rem;
}

.flow-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.5rem 0.65rem;
  margin-bottom: 2.5rem;
}

.flow-step {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  background: var(--bg-panel);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.82rem;
  color: var(--text-muted);
  box-shadow: 0 0 24px rgba(139, 92, 246, 0.08);
}

.flow-step strong {
  font-family: var(--font-mono);
  color: var(--accent);
  font-weight: 700;
  font-size: 0.75rem;
}

.flow-arrow {
  color: var(--cyan);
  font-size: 1.1rem;
  opacity: 0.85;
  user-select: none;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.82rem 1.65rem;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.03em;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn-primary {
  background: linear-gradient(135deg, #7c3aed 0%, var(--primary) 40%, #4c1d95 100%);
  color: white;
  box-shadow: 0 4px 28px var(--glow-purple), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px var(--glow-purple), 0 0 24px var(--glow-cyan);
}

.btn-ghost {
  background: rgba(15, 23, 42, 0.5);
  color: var(--text);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 24px var(--glow-cyan);
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 3.25rem 0 1.35rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-title::before {
  content: "";
  width: 4px;
  height: 1.1em;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--primary));
  box-shadow: 0 0 12px var(--cyan);
}

/* —— 玻璃卡片 —— */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr));
  gap: 1.35rem;
}

.card {
  position: relative;
  background: var(--bg-panel);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.65rem;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--primary), transparent);
  opacity: 0.6;
}

.card:hover {
  border-color: var(--border-bright);
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4), 0 0 40px rgba(139, 92, 246, 0.12);
}

.card h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin: 0 0 0.5rem;
  color: var(--primary-bright);
}

.card .metric {
  font-family: var(--font-mono);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--accent);
  margin: 0.35rem 0;
  letter-spacing: -0.02em;
}

.card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.list-numbered {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--text-muted);
}

.list-numbered li {
  margin-bottom: 0.55rem;
}

.list-numbered li strong {
  color: var(--text);
}

.site-footer {
  text-align: center;
  padding: 2.25rem 1rem;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
  background: rgba(3, 7, 18, 0.6);
}

.breadcrumb {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-bottom: 1.25rem;
  font-family: var(--font-mono);
}

.breadcrumb a {
  color: var(--text-muted);
}

.breadcrumb a:hover {
  color: var(--cyan);
}

/* —— Tabs —— */
.tablist {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.4rem;
  margin-bottom: 1.35rem;
  padding: 0.35rem;
  background: rgba(15, 23, 42, 0.55);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.tablist::-webkit-scrollbar {
  height: 4px;
}

.tablist::-webkit-scrollbar-thumb {
  background: var(--border-bright);
  border-radius: 4px;
}

@media (min-width: 900px) {
  .tablist {
    flex-wrap: wrap;
    overflow-x: visible;
  }
}

.tablist [role="tab"] {
  font-family: var(--font-body);
  font-size: clamp(0.72rem, 2.4vw, 0.8rem);
  font-weight: 700;
  padding: 0.55rem 0.85rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
  flex: 0 0 auto;
  white-space: nowrap;
  touch-action: manipulation;
}

.tablist [role="tab"]:hover {
  color: var(--text);
  background: rgba(34, 211, 238, 0.06);
}

.tablist [role="tab"][aria-selected="true"] {
  color: var(--bg-void);
  background: linear-gradient(135deg, var(--cyan), #06b6d4);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 0 20px var(--glow-cyan);
}

.tabpanel[hidden] {
  display: none !important;
}

.tabpanel {
  animation: tabfade 260ms ease;
}

@keyframes tabfade {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* —— Accordion —— */
.accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-panel);
  backdrop-filter: blur(12px);
  overflow: hidden;
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 700;
  text-align: left;
  color: var(--text);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: background var(--transition);
}

.accordion-trigger:hover {
  background: rgba(34, 211, 238, 0.06);
}

.accordion-trigger .chevron {
  flex-shrink: 0;
  width: 0.45rem;
  height: 0.45rem;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform var(--transition);
}

.accordion-trigger[aria-expanded="true"] .chevron {
  transform: rotate(-135deg);
}

.accordion-panel {
  padding: 0 1.25rem 1.1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.65;
  border-top: 1px solid transparent;
}

.accordion-trigger[aria-expanded="true"] + .accordion-panel {
  border-top-color: var(--border);
  padding-top: 0.85rem;
}

/* —— 进度条 —— */
.progress-block {
  margin-top: 1.25rem;
}

.progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  margin-bottom: 0.45rem;
}

.progress-track {
  height: 12px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.9);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.35);
}

.progress-fill {
  width: 0;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, #06b6d4, var(--primary), var(--accent));
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.45);
  transition: width 900ms cubic-bezier(0.22, 1, 0.36, 1);
}

.stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1.25rem 0 0;
}

.stat-pill {
  flex: 1 1 150px;
  padding: 0.9rem 1.1rem;
  background: rgba(30, 41, 59, 0.6);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.stat-pill strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--accent-hot);
  margin-top: 0.35rem;
  letter-spacing: 0.04em;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.15rem;
}

/* —— 快捷入口 —— */
.quick-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 240px), 1fr));
  gap: 1.1rem;
  margin-top: 1.5rem;
}

.link-card {
  display: block;
  position: relative;
  padding: 1.35rem 1.5rem;
  background: var(--bg-panel);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  color: inherit;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.link-card::after {
  content: "→";
  position: absolute;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  color: var(--cyan);
  opacity: 0.5;
  transition: transform var(--transition), opacity var(--transition);
}

.link-card:hover {
  border-color: var(--cyan);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35), 0 0 32px rgba(34, 211, 238, 0.12);
  cursor: pointer;
}

.link-card:hover::after {
  transform: translate(4px, -50%);
  opacity: 1;
}

.link-card h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text);
}

.link-card p {
  margin: 0;
  padding-right: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* —— HUD 数据条 —— */
.hud-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
  margin: 2.5rem auto 0;
  max-width: 920px;
}

@media (min-width: 768px) {
  .hud-strip {
    grid-template-columns: repeat(4, 1fr);
  }
}

.hud-cell {
  text-align: center;
  padding: 1.15rem 0.75rem;
  background: var(--bg-panel);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
}

.hud-cell::before {
  content: attr(data-label);
  display: block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.45rem;
}

.hud-value {
  font-family: var(--font-mono);
  font-size: clamp(1.15rem, 2.8vw, 1.45rem);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.hud-sub {
  font-size: 0.72rem;
  color: var(--cyan);
  margin-top: 0.35rem;
  font-family: var(--font-mono);
}

/* —— 图表容器 —— */
.chart-panel {
  margin-top: 2rem;
  padding: clamp(1rem, 3vw, 1.5rem);
  background: var(--bg-panel);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  max-width: 100%;
  overflow: hidden;
}

.chart-panel-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.chart-panel-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text);
  margin: 0;
}

.chart-panel-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
}

.chart-svg {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
}

.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  margin-top: 1rem;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.chart-legend span {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.chart-legend i {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  flex-shrink: 0;
}

/* 横向条形图 */
.bar-chart {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.bar-row {
  display: grid;
  grid-template-columns: minmax(4.5rem, 6rem) 1fr minmax(2.5rem, 3.5rem);
  gap: 0.65rem 0.85rem;
  align-items: center;
}

.bar-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
}

.bar-track {
  height: 10px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid var(--border);
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 999px;
  width: 0;
  max-width: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--primary));
  box-shadow: 0 0 14px rgba(34, 211, 238, 0.35);
  transition: width 1.1s cubic-bezier(0.22, 1, 0.36, 1);
}

.bar-fill.is-inview {
  width: var(--w, 50%);
}

.bar-val {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  text-align: right;
}

/* 双栏图表布局 */
.chart-split {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 900px) {
  .chart-split {
    grid-template-columns: 1fr 1.15fr;
    align-items: start;
  }
}

.donut-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
}

.donut-center {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  fill: var(--text-dim);
}

/* 产品线卡片 */
.product-mini {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.25rem;
}

@media (min-width: 600px) {
  .product-mini {
    grid-template-columns: repeat(3, 1fr);
  }
}

.product-tile {
  padding: 1.1rem 1.15rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(15, 23, 42, 0.5);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.product-tile:hover {
  border-color: var(--primary-bright);
  box-shadow: 0 0 24px rgba(139, 92, 246, 0.15);
}

.product-tile h4 {
  margin: 0 0 0.35rem;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text);
}

.product-tile .price {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--accent);
  margin: 0;
}

.product-tile .meta {
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-top: 0.4rem;
}

/* 时间线 */
.timeline {
  position: relative;
  padding-left: 1.5rem;
  margin: 1.5rem 0;
  border-left: 2px solid var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: 1.5rem;
  padding-left: 0.5rem;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: calc(-1.5rem - 5px);
  top: 0.35rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item strong {
  font-family: var(--font-display);
  font-size: 0.82rem;
  color: var(--primary-bright);
  letter-spacing: 0.06em;
}

.timeline-item p {
  margin: 0.35rem 0 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

@media (max-width: 560px) {
  .bar-row {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .bar-val {
    text-align: left;
    grid-column: 1 / -1;
  }

  .bar-track {
    grid-column: 1 / -1;
  }
}

@media (max-width: 479px) {
  .card-grid,
  .quick-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 2rem 0 2.5rem;
  }

  .flow-strip {
    flex-direction: column;
  }

  .flow-arrow {
    transform: rotate(90deg);
  }

  .cta-row .btn {
    width: 100%;
  }

  .link-card::after {
    display: none;
  }

  .link-card p {
    padding-right: 0;
  }

  .site-footer {
    padding-bottom: max(2rem, env(safe-area-inset-bottom));
  }
}

@media (min-width: 768px) {
  main {
    padding-left: max(2rem, env(safe-area-inset-left));
    padding-right: max(2rem, env(safe-area-inset-right));
  }
}