/* ==================== 首页 · 深色主题 ==================== */

/* ===== 深色主题变量 ===== */
:root {
  --bg-color: #050a07;
  --primary-blue: #34d399;
  --primary-blue-dim: rgba(52, 211, 153, 0.12);
  --primary-blue-mid: rgba(52, 211, 153, 0.25);
  --text-main: #ecfdf3;
  --text-dim: #aabbb0;
  --text-muted: #7ca894;
  --grid-color: rgba(255, 255, 255, 0.02);
  --surface-glass: rgba(12, 20, 14, 0.5);
  --surface-glass-strong: rgba(16, 26, 18, 0.7);
  --surface-raised: rgba(14, 22, 16, 0.75);
  --border-subtle: rgba(255, 255, 255, 0.04);
  --border-mid: rgba(255, 255, 255, 0.07);
  --border-glow: rgba(52, 211, 153, 0.25);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

/* ===== 全局动效关键帧 ===== */
@media (prefers-reduced-motion: no-preference) {
  @keyframes heroWordIn {
    from { opacity: 0; transform: translateY(40px); filter: blur(8px); }
    to   { opacity: 1; transform: translateY(0);   filter: blur(0); }
  }
  @keyframes nodePulse {
    0%,100% { transform: scale(1);   opacity: 0.6; }
    50%     { transform: scale(1.5);  opacity: 1;   }
  }
  @keyframes lineDash {
    to { stroke-dashoffset: -24; }
  }
  @keyframes shimmerSweep {
    from { left: -60%; }
    to   { left: 120%; }
  }
  @keyframes gradientFlow {
    0%,100% { background-position: 0% 50%; }
    50%     { background-position: 100% 50%; }
  }
  @keyframes borderGlowPulse {
    0%,100% { box-shadow: 0 0 8px var(--primary-blue-mid); }
    50%     { box-shadow: 0 0 24px var(--primary-blue-mid), 0 0 48px var(--primary-blue-dim); }
  }
  @keyframes floatBob {
    0%,100% { transform: translateY(0); }
    50%     { transform: translateY(-10px); }
  }
  @keyframes scaleIn {
    from { opacity: 0; transform: scale(0.88); }
    to   { opacity: 1; transform: scale(1); }
  }
  @keyframes slideUpIn {
    from { opacity: 0; transform: translateY(48px); }
    to   { opacity: 1; transform: translateY(0); }
  }
  @keyframes slideRightIn {
    from { opacity: 0; transform: translateX(-32px); }
    to   { opacity: 1; transform: translateX(0); }
  }
  @keyframes fadeBlurIn {
    from { opacity: 0; filter: blur(12px); }
    to   { opacity: 1; filter: blur(0); }
  }
  @keyframes sectionGlowPulse {
    0%,100% { opacity: 0.4; }
    50%     { opacity: 0.75; }
  }
}

/* reduced-motion 降级 */
@media (prefers-reduced-motion: reduce) {
  .fade-in,
  .feature-tile,
  .use-case-card,
  .step-flow__item,
  .region-card,
  .product-card { animation: none !important; opacity: 1 !important; transform: none !important; }
}

/* ===== Stagger 交错入场（配合 JS 的 --i 自定义属性）===== */
@media (prefers-reduced-motion: no-preference) {
  .fade-in.visible .feature-tile,
  .feature-tiles.visible .feature-tile {
    opacity: 0; animation: scaleIn 0.65s cubic-bezier(0.16,1,0.3,1) forwards;
    animation-delay: calc(var(--i, 0) * 0.1s);
  }
  .fade-in.visible .use-case-card,
  .use-cases-grid.visible .use-case-card {
    opacity: 0; animation: slideUpIn 0.6s cubic-bezier(0.16,1,0.3,1) forwards;
    animation-delay: calc(var(--i, 0) * 0.08s);
  }
  .fade-in.visible .step-flow__item,
  .step-flow.visible .step-flow__item {
    opacity: 0; animation: slideUpIn 0.55s cubic-bezier(0.16,1,0.3,1) forwards;
    animation-delay: calc(var(--i, 0) * 0.12s);
  }
  .fade-in.visible .region-card,
  .region-board.visible .region-card {
    opacity: 0; animation: slideRightIn 0.5s cubic-bezier(0.16,1,0.3,1) forwards;
    animation-delay: calc(var(--i, 0) * 0.1s);
  }
  .fade-in.visible .hero-metrics > div {
    opacity: 0; animation: slideUpIn 0.5s ease forwards;
    animation-delay: calc(var(--i, 0) * 0.15s);
  }
}

/* ===== CSS 浮动粒子层 ===== */
body::before {
  content: ''; position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    radial-gradient(1px 1px at 15% 25%, rgba(52,211,153,0.5), transparent),
    radial-gradient(1px 1px at 45% 15%, rgba(52,211,153,0.4), transparent),
    radial-gradient(1px 1px at 75% 60%, rgba(52,211,153,0.35), transparent),
    radial-gradient(1px 1px at 25% 70%, rgba(52,211,153,0.4), transparent),
    radial-gradient(1px 1px at 60% 35%, rgba(52,211,153,0.3), transparent),
    radial-gradient(1px 1px at 85% 80%, rgba(52,211,153,0.35), transparent),
    radial-gradient(1px 1px at 10% 50%, rgba(52,211,153,0.3), transparent),
    radial-gradient(1px 1px at 50% 85%, rgba(52,211,153,0.4), transparent);
  background-size: 200px 200px;
  animation: floatBob 12s ease-in-out infinite alternate;
}

body {
  background-color: var(--bg-color);
  background-image: none;
  color: var(--text-main);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* 导航样式已移至 resources/css/nav-v2.css（全站共享），此处保留 index 专属覆盖 */

/* index.html 的 home-page 已由 nav-v2.css 的通用规则覆盖，无需额外声明 */


/* ===== Three.js 背景层 ===== */
#canvas-container {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none;
}
.background-overlay {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background-image:
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: 80px 80px; z-index: 1; pointer-events: none;
}

/* ===== 导航 & 内容层级 ===== */
main, #site-footer { position: relative; z-index: 10; }
main.page-main { z-index: 10; background: transparent; padding-top: 0; min-height: 0; }

/* ===== 通用工具类 ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.fade-in { opacity: 0; transform: translateY(40px) scale(0.97); transition: opacity 0.55s cubic-bezier(0.22,1,0.36,1), transform 0.65s cubic-bezier(0.34,1.35,0.64,1); }
.fade-in.visible { opacity: 1; transform: translateY(0) scale(1); }
a { text-decoration: none; color: inherit; transition: color 0.3s; }
a:hover { color: var(--primary-blue); }

/* ===== Hero V2 ===== */
.hero-v2 {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  padding: 120px 0 80px; overflow: hidden;
}
/* 背景光斑 */
.hero-v2::before {
  content: ''; position: absolute; width: 680px; height: 680px;
  top: -15%; right: -10%;
  background: radial-gradient(circle, rgba(52,211,153,0.14) 0%, transparent 60%);
  border-radius: 50%; pointer-events: none; z-index: 0;
  animation: floatBob 8s ease-in-out infinite, sectionGlowPulse 6s ease-in-out infinite;
}
.hero-v2::after {
  content: ''; position: absolute; width: 400px; height: 400px;
  bottom: 5%; left: -8%;
  background: radial-gradient(circle, rgba(52,211,153,0.08) 0%, transparent 55%);
  border-radius: 50%; pointer-events: none; z-index: 0;
  animation: floatBob 10s ease-in-out infinite 1s;
}
.hero-v2__inner { display: grid; grid-template-columns: 1fr; gap: 48px; align-items: center; position: relative; z-index: 1; }
@media (min-width: 1024px) { .hero-v2__inner { grid-template-columns: 1.1fr 0.9fr; } }

/* 标题逐词动画 */
.hero-v2__title {
  font-family: "Cormorant Garamond", "Noto Serif SC", serif;
  font-size: clamp(42px, 5.5vw, 76px); line-height: 1.3; font-style: italic; font-weight: 400; padding-top: 0.05em;
  margin-bottom: 24px; letter-spacing: -0.02em;
}
.hero-v2__title .hw {
  display: inline-block;
  animation: heroWordIn 0.9s cubic-bezier(0.16,1,0.3,1) both;
}
.hero-v2__title .hw:nth-child(1) { animation-delay: 0.1s; }
.hero-v2__title .hw:nth-child(2) { animation-delay: 0.2s; }
.hero-v2__title .hw:nth-child(3) { animation-delay: 0.3s; }
.hero-v2__title .hw:nth-child(4) { animation-delay: 0.4s; }
.hero-v2__title .hw:nth-child(5) { animation-delay: 0.5s; }
.hero-v2__title .hw:nth-child(6) { animation-delay: 0.6s; }
.hero-v2__title-line2 {
  color: var(--primary-blue); text-shadow: 0 0 30px rgba(52,211,153,0.35); display: inline-block;
  background: linear-gradient(135deg, var(--primary-blue), #6ee7b7, var(--primary-blue));
  background-size: 200% auto; -webkit-background-clip: text; background-clip: text;
  color: transparent; -webkit-text-fill-color: transparent;
  animation: gradientFlow 4s ease-in-out infinite;
}
.hero-v2__sub {
  color: var(--text-dim); font-size: clamp(16px, 1.3vw, 19px); line-height: 1.7;
  max-width: 520px; margin-bottom: 28px;
}
.hero-proof-row {
  display: flex; flex-wrap: wrap; gap: 10px 18px; margin-bottom: 36px;
  font-family: "JetBrains Mono", monospace; font-size: 12px; color: var(--text-dim);
  letter-spacing: 0.04em;
}
.hero-proof-row span {
  padding: 6px 14px; border-radius: 999px; border: 1px solid var(--border-mid);
  background: rgba(255,255,255,0.03); white-space: nowrap; transition: all 0.35s ease;
}
.hero-proof-row span:hover {
  border-color: var(--border-glow); background: var(--primary-blue-dim); color: #fff;
}
.hero-v2__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 48px; }

/* 主按钮 — Neumorphic 暗色（From Uiverse.io by shah1345）*/
.hero-v2__btn-primary,
.hero-v2__btn-secondary {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  position: relative; overflow: hidden; z-index: 1; cursor: pointer;
  padding: 0.85em 2em; font-size: 16px; font-weight: 700; border-radius: 0.5em;
  color: #d0d0d0; background: #1e1e1e;
  border: 1px solid #2a2a2a;
  box-shadow: 6px 6px 12px #0f0f0f, -6px -6px 12px #2d2d2d;
  transition: all 0.2s ease-in; text-decoration: none;
}
.hero-v2__btn-primary:active,
.hero-v2__btn-secondary:active {
  color: #999;
  box-shadow: inset 4px 4px 12px #0f0f0f, inset -4px -4px 12px #2d2d2d;
}
.hero-v2__btn-primary::before,
.hero-v2__btn-secondary::before {
  content: ""; position: absolute; left: 50%;
  transform: translateX(-50%) scaleY(1) scaleX(1.25);
  top: 100%; width: 140%; height: 180%;
  background-color: rgba(0, 144, 135, 0.08);
  border-radius: 50%; display: block;
  transition: all 0.5s 0.1s cubic-bezier(0.55,0,0.1,1);
  z-index: -1;
}
.hero-v2__btn-primary::after,
.hero-v2__btn-secondary::after {
  content: ""; position: absolute; left: 55%;
  transform: translateX(-50%) scaleY(1) scaleX(1.45);
  top: 180%; width: 160%; height: 190%;
  background-color: #009087; border-radius: 50%; display: block;
  transition: all 0.5s 0.1s cubic-bezier(0.55,0,0.1,1);
  z-index: -1;
}
.hero-v2__btn-primary:hover,
.hero-v2__btn-secondary:hover {
  color: #ffffff; border-color: #009087;
}
.hero-v2__btn-primary:hover::before,
.hero-v2__btn-secondary:hover::before {
  top: -35%; background-color: #009087;
  transform: translateX(-50%) scaleY(1.3) scaleX(0.8);
}
.hero-v2__btn-primary:hover::after,
.hero-v2__btn-secondary:hover::after {
  top: -45%; background-color: #009087;
  transform: translateX(-50%) scaleY(1.3) scaleX(0.8);
}
.hero-v2__btn-primary .hbtn-inner {
  position: relative; z-index: 1; display: inline-flex; gap: 2px;
}
.hero-v2__btn-secondary > * { position: relative; z-index: 1; }

/* Hero 指标 — 发光下划线 */
.hero-metrics { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; max-width: 460px; }
.hero-metrics > div {
  position: relative; padding-bottom: 14px;
}
.hero-metrics > div::after {
  content: ''; position: absolute; bottom: 0; left: 0; width: 32px; height: 2px;
  border-radius: 999px; background: var(--primary-blue);
  box-shadow: 0 0 10px rgba(52,211,153,0.5);
}
.hero-metrics dt {
  font-family: "JetBrains Mono", monospace; font-size: 15px; color: var(--primary-blue);
  font-weight: 700; margin-bottom: 2px;
}
.hero-metrics dd { font-size: 13px; color: var(--text-dim); margin: 0; }

/* Hero 视觉 — 网络拓扑节点 */
.hero-v2__visual { display: flex; align-items: center; justify-content: center; position: relative; }
.hero-viz-nodes {
  width: 100%; max-width: 420px; aspect-ratio: 4/3; position: relative;
}
.hero-viz-node {
  position: absolute; width: 12px; height: 12px; border-radius: 50%;
  background: var(--primary-blue); box-shadow: 0 0 16px rgba(52,211,153,0.6);
  animation: nodePulse 3s ease-in-out infinite;
}
.hero-viz-node:nth-child(1) { top: 10%; left: 50%; animation-delay: 0s; }
.hero-viz-node:nth-child(2) { top: 45%; left: 18%; animation-delay: 0.6s; width: 9px; height: 9px; }
.hero-viz-node:nth-child(3) { top: 45%; right: 18%; animation-delay: 1.2s; width: 9px; height: 9px; }
.hero-viz-node:nth-child(4) { bottom: 12%; left: 50%; animation-delay: 1.8s; width: 8px; height: 8px; }
.hero-viz-node:nth-child(5) { top: 28%; left: 32%; animation-delay: 0.3s; width: 6px; height: 6px; }
.hero-viz-node:nth-child(6) { top: 28%; right: 32%; animation-delay: 0.9s; width: 6px; height: 6px; }
.hero-viz-line {
  position: absolute; height: 1px; background: linear-gradient(90deg, transparent, rgba(52,211,153,0.25), transparent);
  transform-origin: left center; pointer-events: none;
}
.hero-viz-line:nth-child(7)  { top: 14%; left: 50%; width: 23%; transform: rotate(35deg); }
.hero-viz-line:nth-child(8)  { top: 14%; left: 27%; width: 23%; transform: rotate(-35deg); }
.hero-viz-line:nth-child(9)  { top: 52%; left: 21%; width: 47%; transform: rotate(12deg); }
.hero-viz-line:nth-child(10) { top: 52%; left: 32%; width: 47%; transform: rotate(-12deg); }
.hero-viz-line:nth-child(11) { top: 52%; left: 50%; width: 28%; transform: rotate(75deg); }
.hero-viz-line:nth-child(12) { top: 52%; left: 22%; width: 28%; transform: rotate(-75deg); }
@media (max-width: 1023px) { .hero-v2__visual { display: none; } }

/* ===== Section 通用 ===== */
.home-section-white {
  padding: clamp(60px, 8vw, 100px) 0; position: relative; z-index: 2;
}
.home-section-blue {
  padding: clamp(60px, 8vw, 100px) 0; position: relative; z-index: 2;
  background: linear-gradient(180deg, rgba(52,211,153,0.03) 0%, transparent 40%, transparent 60%, rgba(52,211,153,0.03) 100%);
  border-top: 1px solid rgba(52,211,153,0.06); border-bottom: 1px solid rgba(52,211,153,0.06);
}

/* ===== Pricing Panel ===== */
.pricing-panel {
  background: var(--surface-glass); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle); border-radius: 24px; padding: clamp(28px,4vw,44px);
  max-width: 880px; margin: 0 auto; transition: border-color 0.4s ease, box-shadow 0.4s ease;
}
.pricing-panel:hover { border-color: var(--border-glow); box-shadow: 0 0 48px rgba(52,211,153,0.06); }

.panel-header { display: flex; align-items: center; gap: 14px; margin-bottom: 28px; }
.panel-header__icon {
  width: 40px; height: 40px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
  background: rgba(52,211,153,0.1); color: var(--primary-blue); border: 1px solid var(--border-glow);
}
.panel-title { font-size: 22px; font-weight: 700; letter-spacing: -0.02em; }

/* 计费周期标签 */
.billing-tabs { display: flex; gap: 8px; margin-bottom: 28px; flex-wrap: wrap; }
.billing-tab {
  padding: 10px 22px; border-radius: 999px; border: 1px solid var(--border-mid);
  background: transparent; color: var(--text-dim); font-size: 14px; font-weight: 600;
  cursor: pointer; transition: all 0.3s; font-family: inherit;
}
.billing-tab:hover { border-color: rgba(255,255,255,0.25); color: #fff; }
.billing-tab.active {
  background: rgba(52,211,153,0.15); border-color: var(--primary-blue); color: var(--primary-blue);
  box-shadow: 0 0 16px rgba(52,211,153,0.15);
}

/* 产品卡片 */
.product-cards-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }
@media (max-width: 600px) { .product-cards-grid { grid-template-columns: 1fr; } }
.product-card {
  position: relative; background: rgba(20,20,25,0.5); border: 1px solid var(--border-subtle);
  border-radius: 18px; padding: 24px; cursor: pointer; transition: all 0.35s ease;
  text-align: left; color: var(--text-main); font-family: inherit; width: 100%; overflow: hidden;
}
/* 顶部选中指示线 */
.product-card::before {
  content: ''; position: absolute; top: 0; left: 20px; right: 20px; height: 2px;
  border-radius: 0 0 4px 4px;
  background: linear-gradient(90deg, transparent, var(--primary-blue), transparent);
  opacity: 0; transition: opacity 0.35s ease;
}
.product-card.is-active::before { opacity: 1; }
.product-card:hover { border-color: rgba(52,211,153,0.2); transform: translateY(-4px); }
.product-card.is-active {
  border-color: var(--border-glow); background: rgba(52,211,153,0.08);
  box-shadow: 0 0 24px rgba(52,211,153,0.1), inset 0 1px 0 rgba(52,211,153,0.05);
  animation: borderGlowPulse 3s ease-in-out infinite;
}
/* 扫光 */
.product-card__shine {
  position: absolute; top: 0; left: -60%; width: 50%; height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255,255,255,0.04), transparent);
  transform: skewX(-15deg); pointer-events: none;
}
.product-card:hover .product-card__shine { animation: shimmerSweep 0.7s ease forwards; }
.product-card__top { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.product-card__name { font-size: 18px; font-weight: 700; }
.product-card__badge {
  font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em;
  padding: 3px 10px; border-radius: 999px; background: rgba(255,255,255,0.06); color: var(--text-dim);
}
.product-card__badge--pro {
  background: rgba(52,211,153,0.15); color: var(--primary-blue); border: 1px solid var(--border-glow);
}
.product-card__spec { font-size: 13px; color: var(--text-dim); display: block; margin-bottom: 16px; }
.product-card__price { display: flex; align-items: baseline; gap: 2px; }
.product-card__currency { font-size: 18px; font-weight: 700; color: var(--primary-blue); }
.product-card__amount {
  font-size: clamp(28px, 3.5vw, 40px); font-weight: 800; letter-spacing: -0.04em; line-height: 1;
  background: linear-gradient(135deg, #fff, var(--primary-blue));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  transition: all 0.3s ease;
}
.product-card__period { font-size: 14px; color: var(--text-dim); font-weight: 500; }

/* 特性列表 */
.pricing-features-list {
  list-style: none; margin: 0 0 22px; padding: 16px 18px; display: grid;
  grid-template-columns: repeat(2, 1fr); gap: 10px 14px;
  border-radius: 16px; background: rgba(255,255,255,0.02); border: 1px dashed rgba(255,255,255,0.06);
}
@media (max-width: 600px) { .pricing-features-list { grid-template-columns: 1fr; } }
.pricing-features-list li {
  font-size: 13px; color: var(--text-dim); display: flex; align-items: center; gap: 8px;
  padding: 6px 0;
}
.pricing-features-list li::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--primary-blue);
  box-shadow: 0 0 6px var(--primary-blue); flex-shrink: 0;
}
.pricing-assurance {
  display: flex; flex-wrap: wrap; gap: 8px 18px; margin-bottom: 28px;
  font-size: 12px; color: var(--text-muted);
}
.pricing-cta-btn {
  display: inline-flex; align-items: center; justify-content: center; width: 100%;
  position: relative; overflow: hidden; z-index: 1; cursor: pointer;
  padding: 1em 2em; font-size: 16px; font-weight: 700; border-radius: 0.5em;
  color: #d0d0d0; background: #1e1e1e;
  border: 1px solid #2a2a2a;
  box-shadow: 6px 6px 12px #0f0f0f, -6px -6px 12px #2d2d2d;
  transition: all 0.2s ease-in;
}
.pricing-cta-btn::before {
  content: ""; position: absolute; left: 50%;
  transform: translateX(-50%) scaleY(1) scaleX(1.25);
  top: 100%; width: 140%; height: 180%;
  background-color: rgba(0, 144, 135, 0.08);
  border-radius: 50%; display: block;
  transition: all 0.5s 0.1s cubic-bezier(0.55,0,0.1,1);
  z-index: -1;
}
.pricing-cta-btn::after {
  content: ""; position: absolute; left: 55%;
  transform: translateX(-50%) scaleY(1) scaleX(1.45);
  top: 180%; width: 160%; height: 190%;
  background-color: #009087; border-radius: 50%; display: block;
  transition: all 0.5s 0.1s cubic-bezier(0.55,0,0.1,1);
  z-index: -1;
}
.pricing-cta-btn:hover { color: #ffffff; border-color: #009087; }
.pricing-cta-btn:hover::before { top: -35%; background-color: #009087; transform: translateX(-50%) scaleY(1.3) scaleX(0.8); }
.pricing-cta-btn:hover::after { top: -45%; background-color: #009087; transform: translateX(-50%) scaleY(1.3) scaleX(0.8); }
.pricing-cta-btn:active { color: #999; box-shadow: inset 4px 4px 12px #0f0f0f, inset -4px -4px 12px #2d2d2d; }

/* ===== Global Footprint ===== */
.global-footprint-box {
  background: var(--surface-glass); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle); border-radius: 24px; overflow: hidden;
}
.global-footprint {
  display: grid; grid-template-columns: 1fr; gap: 0;
}
@media (min-width: 860px) { .global-footprint { grid-template-columns: 1fr 1fr; } }
.global-footprint__copy { padding: clamp(28px,4vw,44px); }
.global-footprint__copy h2 {
  font-family: "Cormorant Garamond", "Noto Serif SC", serif;
  font-size: clamp(28px,3.5vw,42px); font-style: italic; font-weight: 400;
  line-height: 1.15; margin: 12px 0 16px;
}
.global-footprint__copy p { color: var(--text-dim); font-size: 15px; line-height: 1.7; margin-bottom: 18px; }
.global-footprint__notes {
  display: flex; flex-wrap: wrap; gap: 8px 14px;
}
.global-footprint__notes span {
  font-size: 12px; color: var(--text-muted); padding: 5px 12px; border-radius: 999px;
  border: 1px solid var(--border-subtle); background: rgba(255,255,255,0.02);
}

.region-board {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: clamp(16px, 3vw, 28px);
  align-content: start;
}
@media (min-width: 560px) {
  .region-board { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 560px) and (max-width: 999px) {
  .region-board:has(> .region-card:nth-child(5):last-child) > .region-card:nth-child(5) {
    grid-column: 1 / -1;
    justify-self: center;
    width: min(100%, 420px);
  }
}
@media (min-width: 1000px) {
  .region-board {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
  .region-board > .region-card {
    grid-column: span 2;
  }
  .region-board:has(> .region-card:nth-child(5):last-child) > .region-card:nth-child(4) {
    grid-column: 2 / span 2;
  }
  .region-board:has(> .region-card:nth-child(5):last-child) > .region-card:nth-child(5) {
    grid-column: 4 / span 2;
  }
}
.region-card {
  padding: 18px 18px 22px 20px;
  background: rgba(10, 14, 12, 0.72);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  overflow: hidden;
  transition: transform 0.35s cubic-bezier(0.165, 0.84, 0.44, 1), border-color 0.35s ease, box-shadow 0.35s ease, background 0.35s ease;
}
.region-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 3px;
  border-radius: 0 2px 2px 0;
  background: linear-gradient(180deg, var(--primary-blue), #6ee7b7);
  opacity: 0;
  transform: scaleY(0.65);
  transform-origin: center;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.region-card::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(120% 85% at 0% 45%, rgba(52, 211, 153, 0.14), transparent 58%);
  opacity: 0;
  transition: opacity 0.35s ease;
}
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .region-card:hover {
    transform: translateY(-3px);
    border-color: rgba(52, 211, 153, 0.28);
    box-shadow:
      0 12px 32px rgba(0, 0, 0, 0.32),
      0 0 0 1px rgba(52, 211, 153, 0.1),
      0 0 28px rgba(52, 211, 153, 0.1);
    background: rgba(14, 22, 18, 0.9);
  }
  .region-card:hover::before {
    opacity: 1;
    transform: scaleY(1);
  }
  .region-card:hover::after {
    opacity: 1;
  }
  .region-card:hover .region-card__flag {
    filter: brightness(1.2);
  }
}
@media (hover: hover) and (prefers-reduced-motion: reduce) {
  .region-card:hover {
    border-color: rgba(52, 211, 153, 0.28);
    box-shadow: 0 0 0 1px rgba(52, 211, 153, 0.12), 0 8px 24px rgba(0, 0, 0, 0.28);
    background: rgba(14, 22, 18, 0.9);
  }
  .region-card:hover::before { opacity: 1; transform: scaleY(1); }
  .region-card:hover::after { opacity: 1; }
}
.region-card__head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}
.region-card__flag {
  font-family: "JetBrains Mono", monospace;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1.1;
  background: linear-gradient(135deg, var(--primary-blue), #6ee7b7);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  transition: filter 0.3s ease;
}
.region-card strong {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.35;
}
.region-card p {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.55;
  margin: 0;
  flex: 1 1 auto;
  min-height: 0;
}

/* ===== Features V2 ===== */
.features-v2__eyebrow {
  font-family: "JetBrains Mono", monospace; font-size: 11px; color: var(--primary-blue);
  letter-spacing: 0.12em; text-transform: uppercase; display: inline-block; margin-bottom: 14px;
}
.features-v2__title {
  font-family: "Cormorant Garamond", "Noto Serif SC", serif;
  font-size: clamp(30px, 4vw, 48px); font-style: italic; font-weight: 400;
  line-height: 1.15; margin-bottom: 18px;
}
.features-v2__lead { color: var(--text-dim); font-size: 16px; line-height: 1.7; max-width: 600px; margin-left: auto; margin-right: auto; }
.features-v2__head { margin-bottom: 56px; text-align: center; }
.features-v2__eyebrow--alt { color: var(--text-dim); margin-bottom: 8px; }
.hl-blue {
  color: var(--primary-blue);
  text-shadow: 0 0 20px rgba(52,211,153,0.2);
  padding: 0.04em 0.18em;
  background: rgba(52,211,153,0.07);
  border: 1px solid rgba(52,211,153,0.18);
  border-radius: 6px;
  box-shadow: none;
}

/* 特性卡片网格 */
.feature-tiles { display: grid; grid-template-columns: repeat(2,1fr); gap: 16px; margin-bottom: 64px; }
@media (max-width: 700px) { .feature-tiles { grid-template-columns: 1fr; } }
.feature-tile {
  background: var(--surface-glass); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle); border-radius: 20px; padding: 28px; overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.165,0.84,0.44,1), border-color 0.4s ease, box-shadow 0.4s ease;
}
.feature-tile:hover {
  transform: translateY(-6px); border-color: var(--border-glow);
  background: var(--surface-glass-strong); box-shadow: 0 12px 40px rgba(52,211,153,0.08);
}
.feature-tile__icon {
  width: 48px; height: 48px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(145deg, rgba(52,211,153,0.2), rgba(52,211,153,0.06));
  color: var(--primary-blue); margin-bottom: 18px;
  border: 1px solid rgba(52,211,153,0.2); transition: transform 0.5s ease, box-shadow 0.5s ease;
}
.feature-tile:hover .feature-tile__icon {
  transform: rotate(360deg) scale(1.08);
  box-shadow: 0 0 24px rgba(52,211,153,0.25);
}
.feature-tile__icon svg { width: 22px; height: 22px; }
.feature-tile__title { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.feature-tile__desc { font-size: 14px; color: var(--text-dim); line-height: 1.6; margin-bottom: 14px; }
.feature-tile__badge {
  font-family: "JetBrains Mono", monospace; font-size: 10px; letter-spacing: 0.06em;
  color: var(--primary-blue); padding: 4px 10px; border-radius: 999px;
  background: rgba(52,211,153,0.08); border: 1px solid rgba(52,211,153,0.2);
}

/* 三步流程 — Uiverse.io hover 展开风格 */
.step-flow-wrap__head { margin-bottom: 32px; }
.step-flow-wrap__head h3 {
  font-family: "Cormorant Garamond", "Noto Serif SC", serif;
  font-size: clamp(24px,3vw,36px); font-style: italic; font-weight: 400;
}
.step-flow {
  list-style: none; display: flex; gap: 6px; height: 280px; padding: 0;
}
.step-flow__item {
  flex: 1; overflow: hidden; cursor: pointer; border-radius: 12px;
  background: rgba(12,20,14,0.3); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border: 1px solid transparent;
  display: flex; justify-content: center; align-items: center;
  transition: flex 0.5s ease, border-color 0.5s ease, box-shadow 0.5s ease, background 0.5s ease;
}
.step-flow__item:hover {
  flex: 5;
  background: rgba(12,20,14,0.55);
  border-color: #34d399;
  box-shadow: 0 0 28px rgba(52,211,153,0.12);
}
.step-flow__inner {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 1em; text-align: center;
  transition: gap 0.5s ease;
}
.step-flow__item:hover .step-flow__inner {
  gap: 10px;
}
.step-flow__num {
  font-family: "JetBrains Mono", monospace; font-size: 44px; font-weight: 700;
  color: var(--primary-blue); letter-spacing: 0.05em;
  transition: font-size 0.5s ease, color 0.5s ease;
}
.step-flow__item:hover .step-flow__num {
  font-size: 30px; color: #34d399;
}
.step-flow__icon {
  width: 42px; height: 42px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  background: rgba(52,211,153,0.1); color: var(--primary-blue);
  border: 1px solid rgba(52,211,153,0.3); transition: all 0.5s ease;
}
.step-flow__item:hover .step-flow__icon {
  width: 32px; height: 32px; color: #34d399; border-color: #34d399;
  box-shadow: 0 0 16px rgba(52,211,153,0.25);
}
.step-flow__icon svg { width: 20px; height: 20px; transition: width 0.5s ease, height 0.5s ease; }
.step-flow__item:hover .step-flow__icon svg { width: 16px; height: 16px; }
.step-flow__title {
  font-size: 15px; font-weight: 600; color: #e0e0e0; text-transform: uppercase;
  letter-spacing: 0.08em; white-space: nowrap;
  opacity: 0; transform: scale(0.8); transition: opacity 0.35s ease 0.15s, transform 0.35s ease 0.15s, color 0.5s ease;
}
.step-flow__item:hover .step-flow__title {
  opacity: 1; transform: scale(1); color: #34d399;
}
.step-flow__desc {
  font-size: 12px; color: #888; line-height: 1.55; max-width: 20em;
  opacity: 0; transform: scale(0.8); transition: opacity 0.35s ease 0.25s, transform 0.35s ease 0.25s, color 0.5s ease;
}
.step-flow__item:hover .step-flow__desc {
  opacity: 1; transform: scale(1); color: #aaa;
}
@media (max-width: 768px) {
  /* 三步卡片：与移动端设计稿一致 — 首行「序号左 + 图标右」，标题/说明左对齐分行；中间步高亮 */
  .step-flow {
    flex-direction: column;
    height: auto;
    gap: 0;
  }
  .step-flow__item {
    flex: unset;
    min-height: 0;
    align-items: stretch;
    justify-content: flex-start;
    border: none;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
  }
  .step-flow__item:hover {
    flex: unset;
    background: transparent;
    box-shadow: none;
  }
  /* 卡片间：青色虚线分隔 */
  .step-flow__item:first-child {
    border-bottom: 1px dotted rgba(52, 211, 153, 0.28);
    padding-bottom: 18px;
    margin-bottom: 10px;
  }
  .step-flow__item:nth-child(2) {
    border: 1px solid rgba(52, 211, 153, 0.48);
    border-radius: 14px;
    background: rgba(12, 20, 14, 0.52);
    margin: 10px 0;
    padding: 6px 0;
    box-shadow: 0 0 0 1px rgba(52, 211, 153, 0.06);
  }
  .step-flow__item:nth-child(2):hover {
    background: rgba(12, 20, 14, 0.58);
    border-color: rgba(52, 211, 153, 0.55);
  }
  .step-flow__item:nth-child(3) {
    border-top: 1px dotted rgba(52, 211, 153, 0.28);
    padding-top: 20px;
    margin-top: 10px;
  }
  .step-flow__inner {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto auto;
    column-gap: 12px;
    row-gap: 12px;
    align-items: center;
    padding: 18px 20px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    text-align: left;
  }
  .step-flow__num {
    grid-column: 1;
    grid-row: 1;
    justify-self: start;
    align-self: center;
    font-size: clamp(28px, 8vw, 38px);
    line-height: 1;
    font-weight: 700;
  }
  .step-flow__item:hover .step-flow__num {
    font-size: clamp(28px, 8vw, 38px);
    color: var(--primary-blue);
  }
  .step-flow__icon {
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
    align-self: center;
    width: 44px;
    height: 44px;
  }
  .step-flow__item:hover .step-flow__icon {
    width: 44px;
    height: 44px;
    color: var(--primary-blue);
    border-color: rgba(52, 211, 153, 0.45);
    box-shadow: none;
  }
  .step-flow__item:hover .step-flow__icon svg {
    width: 20px;
    height: 20px;
  }
  .step-flow__title {
    grid-column: 1 / -1;
    grid-row: 2;
    min-width: 0;
    white-space: normal;
    word-break: break-word;
    text-align: left;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.04em;
    line-height: 1.4;
    text-transform: none;
    margin: 0;
    opacity: 1;
    transform: none;
    color: #f1f5f9;
  }
  /* 第二步：标题与边框同为强调色 */
  .step-flow__item:nth-child(2) .step-flow__title {
    color: #34d399;
  }
  .step-flow__item:hover .step-flow__title {
    opacity: 1;
    transform: none;
    color: #f1f5f9;
  }
  .step-flow__item:nth-child(2):hover .step-flow__title {
    color: #34d399;
  }
  .step-flow__desc {
    grid-column: 1 / -1;
    grid-row: 3;
    min-width: 0;
    max-width: none;
    width: 100%;
    text-align: left;
    font-size: 13px;
    line-height: 1.6;
    opacity: 1;
    transform: none;
    color: var(--text-dim);
  }
  .step-flow__item:hover .step-flow__desc {
    opacity: 1;
    transform: none;
    color: var(--text-dim);
  }
}

/* ===== Use Cases ===== */
.use-cases-section { padding: 0; }
.section-label { display: flex; align-items: center; gap: 14px; margin-bottom: 36px; }
.section-label__icon {
  width: 40px; height: 40px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
  background: rgba(52,211,153,0.1); color: var(--primary-blue); border: 1px solid var(--border-glow);
}
.section-label h2 { font-size: 22px; font-weight: 700; }
.use-cases-grid {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin-bottom: 28px;
}
@media (max-width: 860px) { .use-cases-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 550px) { .use-cases-grid { grid-template-columns: 1fr; } }
.use-case-card {
  position: relative; background: var(--surface-glass); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle); border-radius: 18px; padding: 24px; overflow: hidden;
  transition: transform 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}
/* 扫光 */
.use-case-card::after {
  content: ''; position: absolute; top: 0; left: -60%; width: 50%; height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255,255,255,0.03), transparent);
  transform: skewX(-15deg); pointer-events: none; transition: left 0s;
}
.use-case-card:hover::after { animation: shimmerSweep 0.7s ease forwards; }
.use-case-card:hover { transform: translateY(-4px); border-color: var(--border-glow); box-shadow: 0 8px 32px rgba(52,211,153,0.06); }
.use-case-card__icon {
  width: 38px; height: 38px; border-radius: 10px; display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px; border: 1px solid;
}
.uc-icon--blue { background: rgba(52,211,153,0.1); color: var(--primary-blue); border-color: rgba(52,211,153,0.25); }
.uc-icon--green { background: rgba(74,222,128,0.1); color: #4ade80; border-color: rgba(74,222,128,0.25); }
.uc-icon--purple { background: rgba(167,139,250,0.1); color: #a78bfa; border-color: rgba(167,139,250,0.25); }
.uc-icon--orange { background: rgba(251,146,60,0.1); color: #fb923c; border-color: rgba(251,146,60,0.25); }
.uc-icon--teal { background: rgba(45,212,191,0.1); color: #2dd4bf; border-color: rgba(45,212,191,0.25); }
.uc-icon--slate { background: rgba(148,163,184,0.1); color: #94a3b8; border-color: rgba(148,163,184,0.25); }
.use-case-card strong { display: block; font-size: 15px; font-weight: 600; margin-bottom: 6px; }
.use-case-card p { font-size: 13px; color: var(--text-dim); line-height: 1.6; }
.use-cases-foot { font-size: 14px; color: var(--text-muted); text-align: center; }


/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .hero-v2 { padding: 100px 0 60px; min-height: auto; }
  .hero-v2__title { font-size: clamp(34px, 8vw, 54px); }
}
@media (max-width: 768px) {
  .hero-v2 { padding: 90px 0 48px; }
  .hero-metrics { grid-template-columns: repeat(3,1fr); gap: 12px; }
  .hero-metrics dt { font-size: 12px; }
  .hero-metrics dd { font-size: 11px; }
  /* 计费周期：窄屏两列网格，避免四个胶囊挤成一行难以点选 */
  .billing-tabs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    width: 100%;
    margin-bottom: 22px;
  }
  .billing-tab {
    padding: 10px 12px;
    font-size: 13px;
    text-align: center;
    border-radius: 12px;
  }
}

/* ===== 页脚 · 深色半透卡片风格 ===== */
footer.site-footer {
  border-top: 1px solid rgba(52, 211, 153, 0.08) !important;
  background: transparent !important;
  box-shadow: none !important;
  color: #94a3b8 !important;
  margin-top: 80px !important;
}

/* 隐藏原网格与光斑（卡片自身已提供层次） */
.site-footer__mesh { display: none !important; }
.site-footer__orbs { display: none !important; }

/* 每列变为玻璃卡片 */
.footer-grid.site-footer__grid {
  gap: 20px !important;
  margin-bottom: 32px !important;
}
.footer-col {
  background: var(--surface-glass) !important;
  backdrop-filter: blur(20px) !important;
  -webkit-backdrop-filter: blur(20px) !important;
  border: 1px solid var(--border-subtle) !important;
  border-radius: 20px !important;
  padding: 28px !important;
  transition: border-color 0.4s ease, transform 0.4s ease !important;
}
.footer-col:hover {
  border-color: var(--border-glow) !important;
  transform: translateY(-4px) !important;
}

/* Logo */
a.footer-logo.site-footer__logo { color: #f8fafc !important; }
.site-footer__logo-icon {
  background: linear-gradient(145deg, rgba(52, 211, 153, 0.35), rgba(52, 211, 153, 0.15)) !important;
  border-color: rgba(52, 211, 153, 0.2) !important;
  box-shadow: 0 8px 28px rgba(52, 211, 153, 0.18), inset 0 1px 0 rgba(255, 255, 255, 0.15) !important;
}

/* 描述文字 */
.footer-tagline.site-footer__tagline { color: #94a3b8 !important; }
.site-footer__email { color: var(--ink-light) !important; }
.site-footer__email:hover { color: var(--primary-blue) !important; }

/* CTA 芯片 */
.site-footer__cta-chip {
  color: #e0e7ff !important;
  border-color: rgba(52, 211, 153, 0.35) !important;
  background: rgba(52, 211, 153, 0.1) !important;
}
.site-footer__cta-chip:hover {
  background: rgba(52, 211, 153, 0.18) !important;
  border-color: rgba(52, 211, 153, 0.55) !important;
  box-shadow: 0 10px 28px rgba(52, 211, 153, 0.15) !important;
  color: #fff !important;
}

/* 列标题 */
.footer-col h5 { color: #cbd5e1 !important; }
.footer-col h5::before {
  background: linear-gradient(90deg, var(--primary-blue), rgba(52, 211, 153, 0.5), transparent) !important;
  box-shadow: 0 0 16px rgba(52, 211, 153, 0.25) !important;
}

/* 链接 */
.footer-col:not(.footer-col--brand) ul li { color: #94a3b8 !important; }
.footer-col ul li a:hover { color: var(--primary-blue) !important; }

/* 底栏 — 独立玻璃条 */
.footer-bottom.site-footer__bottom {
  border-top: none !important;
  padding: 20px 24px !important;
  background: var(--surface-glass) !important;
  backdrop-filter: blur(20px) !important;
  -webkit-backdrop-filter: blur(20px) !important;
  border: 1px solid var(--border-subtle) !important;
  border-radius: 16px !important;
}
.site-footer__copyright { color: var(--ink-semi) !important; }
.site-footer__byline { color: #475569 !important; }

/* 响应式 */
@media (max-width: 768px) {
  .footer-col { padding: 22px !important; }
  .footer-bottom.site-footer__bottom { flex-direction: column !important; gap: 8px !important; text-align: center !important; }
}