/* ============================================
   组件 - Hero / 数字墙 / 产品矩阵 / 等
   ============================================ */

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 880px;
  padding-top: 152px;
  padding-bottom: var(--sp-24);
  background: var(--grad-hero);
  color: var(--c-text-inverse);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center 30%, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center 30%, black 30%, transparent 75%);
}
.hero-orbs {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: orb-float 16s ease-in-out infinite;
}
.hero-orb.o1 { width: 480px; height: 480px; background: #2563eb; top: -120px; left: -120px; }
.hero-orb.o2 { width: 360px; height: 360px; background: #06b6d4; bottom: -100px; right: -80px; animation-delay: -8s; }
.hero-orb.o3 { width: 240px; height: 240px; background: #f59e0b; top: 30%; right: 20%; opacity: 0.3; animation-delay: -4s; }
@keyframes orb-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, -30px) scale(1.1); }
}

.hero-inner {
  position: relative;
  max-width: var(--w-wide);
  margin: 0 auto;
  padding: 0 var(--sp-6);
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--sp-12);
  align-items: center;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 6px 14px;
  border-radius: var(--r-full);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  backdrop-filter: blur(12px);
  color: var(--c-cyan-300);
  font-size: var(--fs-sm);
  font-weight: 500;
  margin-bottom: var(--sp-6);
}
.hero-tag .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--c-cyan-400);
  box-shadow: 0 0 0 4px rgba(34,211,238,0.2);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.4); }
}
.hero-title {
  font-size: clamp(40px, 5.6vw, 76px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: var(--sp-6);
  font-weight: 800;
}
.hero-title .accent {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 50%, #ef4444 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-title .accent-cool {
  background: linear-gradient(135deg, #67e8f9 0%, #3b82f6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size: var(--fs-lg);
  line-height: var(--lh-relaxed);
  color: rgba(255,255,255,0.75);
  max-width: 560px;
  margin-bottom: var(--sp-8);
}
.hero-actions {
  display: flex;
  gap: var(--sp-4);
  flex-wrap: wrap;
  margin-bottom: var(--sp-10);
}

/* Hero 信任栏 */
.hero-trust {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
  padding-top: var(--sp-6);
  border-top: 1px solid rgba(255,255,255,0.08);
}
.hero-trust-avatars {
  display: flex;
}
.hero-trust-avatars .av {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--grad-cool);
  border: 2px solid #0f2547;
  margin-left: -10px;
  display: grid; place-items: center;
  font-size: 12px;
  font-weight: 700;
  color: white;
}
.hero-trust-avatars .av:first-child { margin-left: 0; }
.hero-trust-avatars .av:nth-child(2) { background: var(--grad-warm); }
.hero-trust-avatars .av:nth-child(3) { background: linear-gradient(135deg, #06b6d4, #10b981); }
.hero-trust-avatars .av:nth-child(4) { background: linear-gradient(135deg, #8b5cf6, #ec4899); }
.hero-trust-text { font-size: var(--fs-sm); color: rgba(255,255,255,0.7); }
.hero-trust-text strong { color: var(--c-accent-400); font-weight: 700; }

/* Hero 信任栏 · Pro 版（首页主视觉数据，14,088 突出） */
.hero-trust-pro {
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  padding-top: var(--sp-7);
}
.hero-trust-stats {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
}
.hero-trust-num {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  position: relative;
  flex-shrink: 0;
  filter: drop-shadow(0 8px 24px rgba(245, 158, 11, 0.22));
}
.hero-trust-num strong {
  font-size: clamp(34px, 4.2vw, 48px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fde68a 0%, #fbbf24 55%, #f97316 110%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}
.hero-trust-num .plus {
  font-size: 26px;
  font-weight: 700;
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-left: 1px;
}
.hero-trust-meta {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}
.hero-trust-lead {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.88);
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.35;
}
.hero-trust-lead em {
  font-style: normal;
  color: var(--c-accent-400);
  font-weight: 700;
  border-bottom: 1px dashed rgba(245, 158, 11, 0.45);
  padding-bottom: 1px;
}
.hero-trust-sub {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.04em;
  font-family: var(--font-mono, Consolas, Menlo, monospace);
}
.hero-trust-sub .sep {
  color: rgba(255, 255, 255, 0.25);
  font-weight: 700;
}

/* hero 信任栏小屏适配 */
@media (max-width: 640px) {
  .hero-trust-pro { gap: 14px; padding-top: var(--sp-5); }
  .hero-trust-stats { gap: 12px; }
  .hero-trust-num strong { font-size: 32px; }
  .hero-trust-num .plus { font-size: 20px; }
  .hero-trust-lead { font-size: 13px; }
  .hero-trust-sub { font-size: 10.5px; gap: 5px; }
}
@media (max-width: 480px) {
  .hero-trust-pro .hero-trust-avatars { display: none; }
}

/* Hero 右侧视觉 */
.hero-visual {
  position: relative;
  height: 600px;
  perspective: 1600px;
}
@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ============= 产品工作台 mockup ============= */
.product-mockup {
  position: relative;
  width: 100%;
  height: 100%;
  background: #0b1424;
  border-radius: 14px;
  overflow: hidden;
  box-shadow:
    0 40px 80px -20px rgba(0,0,0,0.7),
    0 0 0 1px rgba(255,255,255,0.06),
    inset 0 1px 0 rgba(255,255,255,0.08);
  display: flex;
  flex-direction: column;
  transform: perspective(2000px) rotateY(-3deg) rotateX(1deg);
  transform-style: preserve-3d;
  animation: pm-float 8s ease-in-out infinite;
}
@keyframes pm-float {
  0%, 100% { transform: perspective(2000px) rotateY(-3deg) rotateX(1deg) translateY(0); }
  50%      { transform: perspective(2000px) rotateY(-3deg) rotateX(1deg) translateY(-8px); }
}

/* 顶部 macOS 风窗口栏 */
.pm-titlebar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 14px;
  background: linear-gradient(180deg, #131e34, #0f1827);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  flex-shrink: 0;
}
.pm-dots { display: flex; gap: 6px; }
.pm-dots span {
  width: 11px; height: 11px;
  border-radius: 50%;
  display: block;
}
.pm-dots span:nth-child(1) { background: #ff5f57; box-shadow: inset 0 0 0 0.5px rgba(0,0,0,0.18); }
.pm-dots span:nth-child(2) { background: #ffbd2e; box-shadow: inset 0 0 0 0.5px rgba(0,0,0,0.18); }
.pm-dots span:nth-child(3) { background: #28c940; box-shadow: inset 0 0 0 0.5px rgba(0,0,0,0.18); }
.pm-url {
  flex: 1;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: rgba(255,255,255,0.05);
  border-radius: 6px;
  font-size: 11px;
  color: rgba(255,255,255,0.55);
  font-family: var(--font-mono, Consolas, monospace);
  max-width: 280px;
  margin: 0 auto;
}
.pm-url svg { width: 10px; height: 10px; opacity: 0.6; flex-shrink: 0; }
.pm-titlebar-actions {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 10px;
  font-weight: 600;
  color: #10b981;
  padding: 3px 9px;
  background: rgba(16,185,129,0.12);
  border-radius: 10px;
}
.pm-dot-live {
  width: 6px; height: 6px;
  background: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 0 2px rgba(16,185,129,0.25);
  animation: pm-pulse 1.6s ease-in-out infinite;
}
@keyframes pm-pulse {
  0%, 100% { box-shadow: 0 0 0 2px rgba(16,185,129,0.25); }
  50%      { box-shadow: 0 0 0 5px rgba(16,185,129,0.05); }
}

/* 主体 */
.pm-body {
  flex: 1;
  display: grid;
  grid-template-columns: 124px 1fr;
  min-height: 0;
}

/* 侧边栏 */
.pm-sidebar {
  background: rgba(255,255,255,0.025);
  border-right: 1px solid rgba(255,255,255,0.05);
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.pm-logo {
  display: flex; align-items: center; gap: 7px;
  padding: 4px 6px 12px;
  font-size: 12px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.02em;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  margin-bottom: 8px;
}
.pm-nav { display: flex; flex-direction: column; gap: 2px; }
.pm-nav-item {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 9px;
  font-size: 11.5px;
  color: rgba(255,255,255,0.55);
  border-radius: 6px;
  font-weight: 500;
  position: relative;
  cursor: default;
}
.pm-nav-item svg { width: 13px; height: 13px; flex-shrink: 0; }
.pm-nav-item.is-active {
  background: linear-gradient(90deg, rgba(37,99,235,0.22), rgba(37,99,235,0.06));
  color: #fff;
  box-shadow: inset 2px 0 0 #3b82f6;
}
.pm-nav-active-soft { color: rgba(255,255,255,0.85); }
.pm-badge {
  margin-left: auto;
  background: #f59e0b;
  color: #fff;
  font-size: 9px;
  font-weight: 800;
  padding: 1px 5px;
  border-radius: 8px;
  line-height: 1.3;
}
.pm-sidebar-foot {
  margin-top: auto;
  display: flex; align-items: center; gap: 8px;
  padding: 10px 6px 4px;
  border-top: 1px solid rgba(255,255,255,0.05);
}
.pm-avatar {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg, #f59e0b, #ec4899);
  color: #fff;
  font-size: 10px;
  font-weight: 800;
  display: grid; place-items: center;
  flex-shrink: 0;
}
.pm-user-meta { line-height: 1.2; min-width: 0; }
.pm-user-name { font-size: 11px; color: #fff; font-weight: 700; }
.pm-user-role { font-size: 9.5px; color: rgba(255,255,255,0.45); }

/* 主区 */
.pm-main {
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  overflow: hidden;
}
.pm-page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.pm-crumb {
  font-size: 10px;
  color: rgba(255,255,255,0.4);
  margin-bottom: 2px;
}
.pm-page-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin: 0;
}
.pm-page-title .wave { display: inline-block; transform-origin: 70% 70%; animation: wave-hand 2.4s ease-in-out infinite; }
@keyframes wave-hand {
  0%, 60%, 100% { transform: rotate(0); }
  10%, 30% { transform: rotate(14deg); }
  20% { transform: rotate(-8deg); }
}
.pm-search {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 7px;
  font-size: 11px;
  color: rgba(255,255,255,0.45);
}
.pm-search svg { width: 11px; height: 11px; }
.pm-search kbd {
  font-family: var(--font-mono, Consolas, monospace);
  font-size: 9.5px;
  padding: 1px 5px;
  background: rgba(255,255,255,0.08);
  border-radius: 4px;
  color: rgba(255,255,255,0.6);
}

.pm-stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.pm-stat {
  background: rgba(255,255,255,0.035);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 8px;
  padding: 9px 12px;
}
.pm-stat-label {
  font-size: 10px;
  color: rgba(255,255,255,0.5);
  margin-bottom: 4px;
}
.pm-stat-val {
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.01em;
  display: flex; align-items: baseline; gap: 6px;
}
.pm-stat-delta {
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 8px;
}
.pm-stat-delta.is-up {
  color: #10b981;
  background: rgba(16,185,129,0.15);
}
.pm-stat-unit {
  font-size: 10px;
  font-weight: 500;
  color: rgba(255,255,255,0.5);
}

.pm-block {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 10px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.pm-block-head {
  display: flex; align-items: center; justify-content: space-between;
}
.pm-block-title {
  font-size: 11.5px;
  font-weight: 700;
  color: rgba(255,255,255,0.85);
}
.pm-block-more {
  font-size: 10px;
  color: rgba(96,165,250,0.85);
  cursor: pointer;
}
.pm-pill {
  font-size: 10px;
  font-weight: 700;
  padding: 1px 7px;
  border-radius: 8px;
}
.pm-pill-up {
  background: rgba(16,185,129,0.15);
  color: #34d399;
}

.pm-inquiry-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.pm-inquiry-list li {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 4px;
  border-radius: 6px;
}
.pm-inquiry-list li:hover { background: rgba(255,255,255,0.03); }
.pm-flag { font-size: 16px; line-height: 1; }
.pm-inq-meta { flex: 1; min-width: 0; }
.pm-inq-name {
  font-size: 11px;
  color: #fff;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pm-inq-sub {
  font-size: 10px;
  color: rgba(255,255,255,0.45);
  margin-top: 1px;
}
.pm-tag {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 8px;
  flex-shrink: 0;
}
.pm-tag-amber { background: rgba(245,158,11,0.18); color: #fbbf24; }
.pm-tag-blue { background: rgba(37,99,235,0.18); color: #60a5fa; }
.pm-tag-green { background: rgba(16,185,129,0.18); color: #34d399; }

.pm-block-chart { padding-bottom: 8px; }
.pm-chart {
  position: relative;
  margin-top: 2px;
}
.pm-chart svg {
  width: 100%; height: 70px; display: block;
}
.pm-chart-x {
  display: flex;
  justify-content: space-between;
  margin-top: 4px;
  font-size: 9px;
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.02em;
}

/* 浮动通知气泡 */
.pm-floating-toast {
  position: absolute;
  top: -14px;
  right: -16px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.97);
  color: #0f172a;
  padding: 10px 14px;
  border-radius: 12px;
  box-shadow: 0 18px 36px -10px rgba(0,0,0,0.4), 0 0 0 1px rgba(0,0,0,0.04);
  z-index: 3;
  animation: pm-toast-in 1s 1.6s both, float-y 5s 2.6s ease-in-out infinite;
  transform-origin: top right;
}
@keyframes pm-toast-in {
  from { opacity: 0; transform: translate(20px, -20px) scale(0.85); }
  to   { opacity: 1; transform: translate(0,0) scale(1); }
}
.pm-toast-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 0 3px rgba(16,185,129,0.22);
}
.pm-floating-toast .pm-toast-title {
  font-size: 12px;
  font-weight: 700;
  line-height: 1.2;
}
.pm-floating-toast .pm-toast-sub {
  font-size: 10.5px;
  color: #64748b;
  margin-top: 2px;
}
@media (max-width: 1024px) {
  .product-mockup { transform: none; animation: none; }
  .pm-floating-toast { display: none; }
}
@media (max-width: 768px) {
  .hero-visual { display: none; }
}

.hc-head {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: var(--sp-4);
}
.hc-title { font-size: var(--fs-sm); color: rgba(255,255,255,0.7); font-weight: 500; }
.hc-pill {
  font-size: var(--fs-xs); padding: 2px 8px; border-radius: var(--r-full);
  background: rgba(16,185,129,0.18); color: #34d399;
  display: inline-flex; align-items: center; gap: 4px;
}
.hc-pill::before { content: "▲"; font-size: 8px; }

.hc-value {
  font-size: var(--fs-3xl);
  font-weight: 800;
  font-family: var(--font-mono);
  margin-bottom: var(--sp-2);
  color: var(--c-white);
  letter-spacing: -0.02em;
}
.hc-value .unit { font-size: var(--fs-md); font-weight: 500; color: rgba(255,255,255,0.5); margin-left: 4px; }
.hc-sub { font-size: var(--fs-xs); color: rgba(255,255,255,0.5); }

/* Ticker (滚动数据流) */
.ticker {
  overflow: hidden;
  border-radius: var(--r-md);
  background: rgba(0,0,0,0.2);
  border: 1px solid rgba(255,255,255,0.06);
  padding: 8px 0;
  position: relative;
}
.ticker::before, .ticker::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 32px;
  pointer-events: none; z-index: 1;
}
.ticker::before { left: 0; background: linear-gradient(90deg, rgba(15,37,71,0.9), transparent); }
.ticker::after  { right: 0; background: linear-gradient(-90deg, rgba(15,37,71,0.9), transparent); }
.ticker-track {
  display: flex;
  gap: var(--sp-6);
  animation: ticker-scroll 30s linear infinite;
  will-change: transform;
}
.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-xs);
  font-family: var(--font-mono);
  color: rgba(255,255,255,0.75);
  white-space: nowrap;
}
.ticker-item .arrow-up { color: #34d399; }
.ticker-item .arrow-dn { color: #fb7185; }
.ticker-item .label { color: rgba(255,255,255,0.45); }
@keyframes ticker-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Hero chart container */
.hero-chart {
  height: 240px;
  margin-top: var(--sp-2);
}

/* ---------- 数字墙 ---------- */
.stats-strip {
  position: relative;
  margin-top: -80px;
  z-index: 5;
}
.stats-strip-inner {
  background: var(--c-white);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-xl);
  padding: var(--sp-8) var(--sp-6);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-6);
  position: relative;
  overflow: hidden;
}
.stats-strip-inner::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  background: var(--grad-primary);
}
.stat-cell {
  text-align: center;
  padding: var(--sp-4) var(--sp-2);
  border-right: 1px solid var(--c-border);
}
.stat-cell:last-child { border-right: 0; }
.stat-value {
  font-size: var(--fs-5xl);
  font-weight: 800;
  font-family: var(--font-mono);
  line-height: 1;
  letter-spacing: -0.03em;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--sp-2);
}
.stat-value .unit {
  font-size: var(--fs-xl);
  -webkit-text-fill-color: var(--c-accent-500);
  background: none;
  margin-left: 2px;
}
.stat-label { font-size: var(--fs-sm); color: var(--c-text-secondary); }
.stat-sub { font-size: var(--fs-xs); color: var(--c-text-tertiary); margin-top: 4px; }

@media (max-width: 768px) {
  .stats-strip-inner {
    grid-template-columns: repeat(2, 1fr);
    padding: var(--sp-5) var(--sp-2);
  }
  .stat-cell:nth-child(2) { border-right: 0; }
  .stat-cell:nth-child(1), .stat-cell:nth-child(2) { border-bottom: 1px solid var(--c-border); padding-bottom: var(--sp-6); }
  .stat-cell:nth-child(3), .stat-cell:nth-child(4) { padding-top: var(--sp-6); }
  .stat-value { font-size: var(--fs-3xl); }
}

/* ---------- 进度环卡片 (5 大核心优势) ---------- */
.metric-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--sp-5);
}
.metric-card {
  background: linear-gradient(180deg, #ffffff 0%, #fafbfd 100%);
  border: 1px solid var(--c-border);
  border-radius: var(--r-xl);
  padding: var(--sp-7) var(--sp-5) var(--sp-6);
  text-align: center;
  transition: transform .4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow .4s, border-color .3s;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.metric-card::before {
  content: "";
  position: absolute;
  top: -40%; left: -40%;
  width: 180%; height: 100%;
  background: radial-gradient(ellipse at center, rgba(37,99,235,0.05) 0%, transparent 60%);
  opacity: 0;
  transition: opacity .5s;
  pointer-events: none;
  z-index: -1;
}
.metric-card:hover {
  border-color: rgba(37,99,235,0.25);
  box-shadow: 0 24px 48px -16px rgba(37,99,235,0.18), 0 0 0 1px rgba(37,99,235,0.12);
  transform: translateY(-8px);
}
.metric-card:hover::before { opacity: 1; }
.metric-card::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-slow);
}
.metric-card:hover::after { transform: scaleX(1); }
.metric-card[data-trend="up"]::before { background: radial-gradient(ellipse at center, rgba(16,185,129,0.06) 0%, transparent 60%); }
.metric-card .ring { transition: transform .6s cubic-bezier(0.16,1,0.3,1); }
.metric-card:hover .ring { transform: scale(1.06) rotate(-6deg); }

.ring {
  width: 120px; height: 120px;
  margin: 0 auto var(--sp-4);
  position: relative;
}
.ring svg { transform: rotate(-90deg); width: 100%; height: 100%; }
.ring-track { fill: none; stroke: var(--c-gray-100); stroke-width: 8; }
.ring-prog {
  fill: none;
  stroke-width: 8;
  stroke-linecap: round;
  stroke: url(#gradPrimary);
  transition: stroke-dashoffset 1.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.ring-prog.accent { stroke: url(#gradAccent); }
.ring-prog.cool { stroke: url(#gradCool); }
.ring-prog.success { stroke: url(#gradSuccess); }
.ring-center {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  font-size: var(--fs-2xl);
  font-weight: 800;
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
}
.ring-center .pct { font-size: var(--fs-md); color: var(--c-text-secondary); margin-left: 2px; }
.metric-title { font-size: var(--fs-md); font-weight: 700; margin-bottom: var(--sp-2); }
.metric-desc { font-size: var(--fs-sm); color: var(--c-text-secondary); line-height: var(--lh-relaxed); }

@media (max-width: 1024px) { .metric-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .metric-grid { grid-template-columns: 1fr; } }

/* ---------- 产品矩阵 (8 版本) ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-5);
}
.product-card {
  background: linear-gradient(180deg, #ffffff 0%, #fafbfd 100%);
  border: 1px solid var(--c-border);
  border-radius: var(--r-xl);
  padding: var(--sp-6);
  transition: transform .4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow .4s, border-color .3s;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}
.product-card:hover {
  border-color: rgba(37,99,235,0.28);
  box-shadow: 0 28px 56px -18px rgba(15,37,71,0.16), 0 0 0 1px rgba(37,99,235,0.06);
  transform: translateY(-10px);
}
.product-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--grad-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .55s cubic-bezier(0.16, 1, 0.3, 1);
}
.product-card:hover::before { transform: scaleX(1); }
.product-card::after {
  content: "";
  position: absolute;
  top: -80px; right: -80px;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37,99,235,0.10) 0%, transparent 70%);
  opacity: 0;
  transition: opacity .5s;
  pointer-events: none;
  z-index: -1;
}
.product-card:hover::after { opacity: 1; }
.product-card[data-color="b3"]::before { background: linear-gradient(90deg, #3b82f6, #06b6d4); }
.product-card[data-color="e3"]::before { background: linear-gradient(90deg, #06b6d4, #10b981); }
.product-card[data-color="m3"]::before { background: linear-gradient(90deg, #10b981, #fbbf24); }
.product-card[data-color="n3"]::before { background: linear-gradient(90deg, #fbbf24, #f59e0b); }
.product-card[data-color="s3"]::before { background: linear-gradient(90deg, #f59e0b, #ef4444); }
.product-card[data-color="j3"]::before { background: linear-gradient(90deg, #ef4444, #ec4899); }
.product-card[data-color="h3"]::before { background: linear-gradient(90deg, #ec4899, #8b5cf6); }
.product-card[data-color="c3"]::before { background: linear-gradient(90deg, #8b5cf6, #2563eb); }
.product-card[data-color="b3"]::after { background: radial-gradient(circle, rgba(59,130,246,0.14) 0%, transparent 70%); }
.product-card[data-color="e3"]::after { background: radial-gradient(circle, rgba(6,182,212,0.14) 0%, transparent 70%); }
.product-card[data-color="m3"]::after { background: radial-gradient(circle, rgba(139,92,246,0.14) 0%, transparent 70%); }
.product-card[data-color="n3"]::after { background: radial-gradient(circle, rgba(245,158,11,0.14) 0%, transparent 70%); }
.product-card[data-color="s3"]::after { background: radial-gradient(circle, rgba(236,72,153,0.14) 0%, transparent 70%); }
.product-card[data-color="j3"]::after { background: radial-gradient(circle, rgba(239,68,68,0.14) 0%, transparent 70%); }
.product-card[data-color="h3"]::after { background: radial-gradient(circle, rgba(168,85,247,0.14) 0%, transparent 70%); }
.product-card[data-color="c3"]::after { background: radial-gradient(circle, rgba(124,58,237,0.14) 0%, transparent 70%); }
.product-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.product-version {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
}
.product-tag {
  font-family: var(--font-mono);
  font-size: var(--fs-xl);
  font-weight: 800;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}
.product-name { font-size: var(--fs-md); font-weight: 700; }
.product-icon {
  width: 48px; height: 48px;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, var(--c-primary-50), #ffffff);
  border: 1px solid var(--c-primary-100);
  color: var(--c-primary-500);
  display: grid; place-items: center;
  transition: all .45s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  box-shadow: 0 2px 6px rgba(37,99,235,0.06);
}
.product-icon svg { width: 24px; height: 24px; }
.product-card:hover .product-icon {
  background: var(--grad-primary);
  border-color: transparent;
  color: var(--c-white);
  transform: rotate(8deg) scale(1.15);
  box-shadow: 0 12px 24px -8px rgba(37,99,235,0.45);
}

.product-card[data-color="b3"] .product-tag { background: linear-gradient(135deg, #3b82f6, #06b6d4); -webkit-background-clip: text; background-clip: text; }
.product-card[data-color="e3"] .product-tag { background: linear-gradient(135deg, #06b6d4, #10b981); -webkit-background-clip: text; background-clip: text; }
.product-card[data-color="m3"] .product-tag { background: linear-gradient(135deg, #10b981, #fbbf24); -webkit-background-clip: text; background-clip: text; }
.product-card[data-color="n3"] .product-tag { background: linear-gradient(135deg, #fbbf24, #f59e0b); -webkit-background-clip: text; background-clip: text; }
.product-card[data-color="s3"] .product-tag { background: linear-gradient(135deg, #f59e0b, #ef4444); -webkit-background-clip: text; background-clip: text; }
.product-card[data-color="j3"] .product-tag { background: linear-gradient(135deg, #ef4444, #ec4899); -webkit-background-clip: text; background-clip: text; }
.product-card[data-color="h3"] .product-tag { background: linear-gradient(135deg, #ec4899, #8b5cf6); -webkit-background-clip: text; background-clip: text; }
.product-card[data-color="c3"] .product-tag { background: linear-gradient(135deg, #8b5cf6, #2563eb); -webkit-background-clip: text; background-clip: text; }

.product-desc {
  font-size: var(--fs-sm);
  color: var(--c-text-secondary);
  line-height: var(--lh-relaxed);
  flex: 1;
}
.product-features {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-top: auto;
}
.product-features .chip {
  font-size: var(--fs-xs);
  padding: 4px 10px;
  border-radius: var(--r-full);
  background: var(--c-bg-soft);
  color: var(--c-text-secondary);
  border: 1px solid var(--c-border);
  transition: all .25s;
}
.product-card:hover .product-features .chip {
  background: #fff;
  border-color: rgba(37,99,235,0.20);
  color: var(--c-text-primary);
}
.product-link {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  color: var(--c-primary-500);
  font-size: var(--fs-sm);
  font-weight: 600;
  margin-top: var(--sp-2);
  position: relative;
  padding: 6px 0;
}
.product-link::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0;
  width: 0;
  height: 1.5px;
  background: var(--c-primary-500);
  transition: width .35s cubic-bezier(0.16, 1, 0.3, 1);
}
.product-card:hover .product-link::after { width: 100%; }
.product-link .arrow { transition: transform var(--t-base); }
.product-card:hover .product-link .arrow { transform: translateX(6px); }

@media (max-width: 1024px) { .product-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px)  { .product-grid { grid-template-columns: 1fr; } }

/* ---------- 功能模块网格 (24 模块) ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--sp-3);
}
.feature-tile {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: var(--sp-5) var(--sp-4);
  text-align: center;
  transition: all var(--t-base);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-2);
  cursor: pointer;
}
.feature-tile:hover {
  border-color: var(--c-primary-300);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.feature-tile-icon {
  width: 48px; height: 48px;
  border-radius: var(--r-md);
  background: var(--c-primary-50);
  color: var(--c-primary-500);
  display: grid; place-items: center;
  margin-bottom: var(--sp-1);
  transition: all var(--t-base);
}
.feature-tile-icon svg { width: 24px; height: 24px; }
.feature-tile:hover .feature-tile-icon {
  background: var(--grad-primary);
  color: var(--c-white);
  transform: scale(1.1) rotate(-6deg);
}
.feature-tile-title {
  font-size: var(--fs-sm);
  font-weight: 600;
}
.feature-tile-count {
  font-size: var(--fs-xs);
  color: var(--c-text-tertiary);
  font-family: var(--font-mono);
}

@media (max-width: 1024px) { .feature-grid { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 640px)  { .feature-grid { grid-template-columns: repeat(3, 1fr); } }

/* ---------- 亮点 (大特性区块) ---------- */
.highlight-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-16);
  align-items: center;
  padding: var(--sp-16) 0;
}
.highlight-block.reverse { direction: rtl; }
.highlight-block.reverse > * { direction: ltr; }

.highlight-num {
  font-size: var(--fs-xl);
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--c-primary-500);
  letter-spacing: 0.05em;
}
.highlight-eyebrow {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  padding: 4px 12px;
  border-radius: var(--r-full);
  background: var(--c-accent-500);
  color: var(--c-white);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: var(--sp-4);
}
.highlight-title {
  font-size: var(--fs-3xl);
  line-height: var(--lh-tight);
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-4);
}
.highlight-desc {
  font-size: var(--fs-md);
  color: var(--c-text-secondary);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--sp-6);
}
.highlight-list { display: flex; flex-direction: column; gap: var(--sp-3); }
.highlight-list li {
  display: flex; align-items: flex-start; gap: var(--sp-3);
  font-size: var(--fs-base);
}
.highlight-list li::before {
  content: "";
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--c-primary-100);
  flex-shrink: 0; margin-top: 2px;
  background-image: linear-gradient(135deg, transparent 45%, var(--c-primary-500) 45%, var(--c-primary-500) 55%, transparent 55%),
                    linear-gradient(225deg, transparent 45%, var(--c-primary-500) 45%, var(--c-primary-500) 55%, transparent 55%);
  background-position: 4px 9px, 9px 6px;
  background-size: 8px 2px, 6px 2px;
  background-repeat: no-repeat;
}

/* 亮点视觉区 */
.highlight-visual {
  position: relative;
  border-radius: var(--r-xl);
  padding: var(--sp-6);
  background: var(--grad-hero);
  min-height: 420px;
  display: grid; place-items: center;
  overflow: hidden;
}
.highlight-visual::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 32px 32px;
}
.highlight-chart {
  position: relative;
  width: 100%;
  height: 380px;
}

@media (max-width: 1024px) {
  .highlight-block, .highlight-block.reverse { direction: ltr; grid-template-columns: 1fr; gap: var(--sp-10); }
}

/* ---------- 扩展能力 (7 张卡) ---------- */
.ability-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5);
}
.ability-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  position: relative;
  overflow: hidden;
  transition: all var(--t-base);
}
.ability-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: var(--c-primary-300); }
.ability-card::before {
  content: "";
  position: absolute;
  top: -40px; right: -40px;
  width: 120px; height: 120px;
  border-radius: 50%;
  background: var(--grad-primary);
  opacity: 0.06;
  transition: all var(--t-slow);
}
.ability-card:hover::before { transform: scale(1.5); opacity: 0.1; }
.ability-icon {
  width: 56px; height: 56px;
  border-radius: var(--r-md);
  background: var(--c-primary-50);
  color: var(--c-primary-500);
  display: grid; place-items: center;
  margin-bottom: var(--sp-4);
}
.ability-icon svg { width: 28px; height: 28px; }
.ability-title { font-size: var(--fs-lg); font-weight: 700; margin-bottom: var(--sp-2); }
.ability-desc { font-size: var(--fs-sm); color: var(--c-text-secondary); line-height: var(--lh-relaxed); margin-bottom: var(--sp-4); }
.ability-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.ability-tags span {
  font-size: var(--fs-xs);
  padding: 4px 10px;
  border-radius: var(--r-full);
  background: var(--c-bg-soft);
  color: var(--c-text-secondary);
}

@media (max-width: 1024px) { .ability-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px)  { .ability-grid { grid-template-columns: 1fr; } }

/* ---------- 行业方案 (12 行业) ---------- */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--sp-4);
}
.industry-tile {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: var(--sp-5) var(--sp-3);
  text-align: center;
  transition: all var(--t-base);
  cursor: pointer;
}
.industry-tile:hover {
  border-color: var(--c-accent-500);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.industry-icon {
  width: 56px; height: 56px;
  margin: 0 auto var(--sp-3);
  border-radius: var(--r-md);
  background: linear-gradient(135deg, var(--c-bg-soft), var(--c-bg-muted));
  color: var(--c-primary-500);
  display: grid; place-items: center;
  transition: all var(--t-base);
}
.industry-icon svg { width: 32px; height: 32px; }
.industry-tile:hover .industry-icon { background: var(--grad-warm); color: var(--c-white); }
.industry-name { font-size: var(--fs-sm); font-weight: 600; }
.industry-count { font-size: var(--fs-xs); color: var(--c-text-tertiary); margin-top: 2px; font-family: var(--font-mono); }

@media (max-width: 1024px) { .industry-grid { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 640px)  { .industry-grid { grid-template-columns: repeat(3, 1fr); } }

/* ---------- 服务亮点 (4 大卡) ---------- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-5);
}
.service-card {
  position: relative;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--sp-8) var(--sp-6);
  text-align: center;
  transition: all var(--t-base);
  overflow: hidden;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-xl); border-color: transparent; }
.service-card::before {
  content: "";
  position: absolute; inset: 0;
  background: var(--grad-primary);
  opacity: 0;
  transition: opacity var(--t-base);
  z-index: 0;
}
.service-card:hover::before { opacity: 1; }
.service-card > * { position: relative; z-index: 1; }
.service-card:hover .service-icon { background: rgba(255,255,255,0.15); color: var(--c-white); }
.service-card:hover .service-title { color: var(--c-white); }
.service-card:hover .service-desc { color: rgba(255,255,255,0.85); }
.service-card:hover .service-num { color: rgba(255,255,255,0.4); }

.service-num {
  position: absolute;
  top: var(--sp-4); right: var(--sp-5);
  font-size: var(--fs-2xl);
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--c-gray-200);
  letter-spacing: -0.02em;
  z-index: 0;
}
.service-icon {
  width: 64px; height: 64px;
  margin: 0 auto var(--sp-4);
  border-radius: 50%;
  background: var(--c-primary-50);
  color: var(--c-primary-500);
  display: grid; place-items: center;
  transition: all var(--t-base);
}
.service-icon svg { width: 32px; height: 32px; }
.service-title { font-size: var(--fs-lg); font-weight: 700; margin-bottom: var(--sp-2); transition: color var(--t-base); }
.service-desc { font-size: var(--fs-sm); color: var(--c-text-secondary); line-height: var(--lh-relaxed); transition: color var(--t-base); }

@media (max-width: 1024px) { .service-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px)  { .service-grid { grid-template-columns: 1fr; } }

/* ---------- 客户评价 (3 张卡) ---------- */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}
.testimonial-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--sp-8) var(--sp-6);
  position: relative;
  transition: all var(--t-base);
}
.testimonial-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.testimonial-quote {
  font-family: Georgia, serif;
  font-size: 80px;
  line-height: 1;
  color: var(--c-primary-100);
  position: absolute;
  top: var(--sp-4); right: var(--sp-5);
}
.testimonial-stars {
  display: flex; gap: 2px;
  margin-bottom: var(--sp-4);
  color: var(--c-accent-500);
}
.testimonial-text {
  font-size: var(--fs-base);
  color: var(--c-text-primary);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--sp-6);
}
.testimonial-user {
  display: flex; align-items: center; gap: var(--sp-3);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--c-border);
}
.testimonial-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--grad-cool);
  display: grid; place-items: center;
  color: var(--c-white); font-weight: 700;
}
.testimonial-user .meta strong { display: block; font-size: var(--fs-sm); }
.testimonial-user .meta span { font-size: var(--fs-xs); color: var(--c-text-tertiary); }

@media (max-width: 1024px) { .testimonial-grid { grid-template-columns: 1fr; } }

/* ---------- CTA 大横幅 ---------- */
.cta-banner {
  background: var(--grad-hero);
  color: var(--c-text-inverse);
  border-radius: var(--r-2xl);
  padding: var(--sp-16) var(--sp-12);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.cta-title {
  font-size: var(--fs-4xl);
  margin-bottom: var(--sp-4);
  letter-spacing: -0.02em;
  position: relative;
}
.cta-sub {
  font-size: var(--fs-lg);
  color: rgba(255,255,255,0.8);
  margin-bottom: var(--sp-8);
  position: relative;
}
.cta-actions {
  display: flex; gap: var(--sp-4); justify-content: center;
  flex-wrap: wrap; position: relative;
}

/* ---------- 数据可视化 Section ---------- */
.dashviz {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-6);
  margin-top: var(--sp-12);
}
.dashviz-panel {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
}
.dashviz-head {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: var(--sp-5);
}
.dashviz-title { font-size: var(--fs-md); font-weight: 700; }
.dashviz-meta { font-size: var(--fs-xs); color: var(--c-text-tertiary); font-family: var(--font-mono); }
.dashviz-chart { height: 280px; }

@media (max-width: 768px) { .dashviz { grid-template-columns: 1fr; } }

/* ---------- 视频卡 ---------- */
.video-card {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--c-gray-900);
  cursor: pointer;
  group: video;
}
.video-poster {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}
.video-card:hover .video-poster { transform: scale(1.05); }
.video-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(10,22,40,0.85) 100%);
  display: flex; flex-direction: column;
  justify-content: flex-end;
  padding: var(--sp-6);
  color: var(--c-white);
}
.video-play {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 64px; height: 64px;
  border-radius: 50%;
  background: rgba(255,255,255,0.18);
  backdrop-filter: blur(12px);
  border: 2px solid rgba(255,255,255,0.4);
  display: grid; place-items: center;
  transition: all var(--t-base);
}
.video-card:hover .video-play {
  background: var(--c-accent-500);
  border-color: var(--c-accent-500);
  transform: translate(-50%, -50%) scale(1.1);
}
.video-play svg { width: 24px; height: 24px; color: var(--c-white); margin-left: 4px; }
.video-title { font-size: var(--fs-md); font-weight: 700; margin-bottom: 4px; }
.video-meta { font-size: var(--fs-xs); color: rgba(255,255,255,0.7); font-family: var(--font-mono); }

/* ---------- Page Header (子页面顶部 banner) ---------- */
.page-hero {
  position: relative;
  background: var(--grad-hero);
  color: var(--c-text-inverse);
  padding: 200px 0 var(--sp-20);
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
}
.page-hero-inner { position: relative; text-align: center; max-width: 880px; margin: 0 auto; padding: 0 var(--sp-6); }
.page-hero h1 {
  font-size: clamp(36px, 5vw, 64px);
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-4);
}
.page-hero p { font-size: var(--fs-lg); color: rgba(255,255,255,0.75); line-height: var(--lh-relaxed); }

/* 子页面下半 stats overlay */
.page-hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-6);
  margin-top: var(--sp-12);
  padding-top: var(--sp-10);
  border-top: 1px solid rgba(255,255,255,0.12);
}
.page-hero-stats .v { font-size: var(--fs-3xl); font-weight: 800; font-family: var(--font-mono); background: var(--grad-warm); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.page-hero-stats .l { font-size: var(--fs-sm); color: rgba(255,255,255,0.7); margin-top: 4px; }
@media (max-width: 640px) { .page-hero-stats { grid-template-columns: repeat(2, 1fr); } }