/* =========================================================
   全站统一样式 — 极简 × 高端 · 白底 + 薄荷绿
   ========================================================= */

:root {
  /* ———— 颜色 ———— */
  --bg:            #ffffff;
  --bg-soft:       #fafbfa;
  --bg-alt:        #f4f7f5;
  --bg-dark:       #0c100e;
  --text:          #0f1411;
  --text-strong:   #050807;
  --text-muted:    #5b6560;
  --text-light:    #8e9892;
  --border:        #ebefec;
  --border-soft:   #f2f5f3;
  --border-strong: #d9ddda;
  --accent:        #00c48c;
  --accent-2:      #00d9a0;
  --accent-dark:   #009b6e;
  --accent-soft:   #e6faf2;
  --accent-glow:   rgba(0, 196, 140, 0.28);

  /* ———— 圆角 ———— */
  --r-sm:          8px;
  --r-md:          12px;
  --r-lg:          18px;
  --r-xl:          24px;
  --r-2xl:         32px;

  /* ———— 阴影系统（分层） ———— */
  --shadow-xs:  0 1px 2px rgba(10, 30, 20, 0.04);
  --shadow-sm:  0 2px 6px rgba(10, 30, 20, 0.05), 0 1px 2px rgba(10, 30, 20, 0.03);
  --shadow-md:  0 8px 24px -4px rgba(10, 30, 20, 0.08), 0 2px 6px rgba(10, 30, 20, 0.04);
  --shadow-lg:  0 20px 48px -12px rgba(10, 30, 20, 0.12), 0 4px 12px rgba(10, 30, 20, 0.04);
  --shadow-xl:  0 32px 80px -16px rgba(10, 30, 20, 0.18), 0 8px 20px rgba(10, 30, 20, 0.05);
  --shadow-accent: 0 20px 48px -16px var(--accent-glow);

  /* ———— 布局 ———— */
  --container:     1280px;
  --nav-h:         72px;
  --edge:          40px;      /* 视口两侧留白（导航 / 页脚到屏幕边缘） */

  /* ———— 字体（全部系统字体，无外部依赖） ———— */
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue",
                  "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
                  "Noto Sans CJK SC", sans-serif;
  --font:         -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue",
                  "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
                  "Noto Sans CJK SC", sans-serif;
  --mono:         "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;

  /* ———— 缓动 ———— */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-variant-numeric: lining-nums;
}

/* 关键数字用等宽数字，避免切换语言或动画时跳动 */
.stat-value,
.price-num,
.price-currency,
.price-period,
.hero-meta-item,
.download-meta,
.legal-meta {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
}

/* 打开 / 刷新时整页淡入，避免内容闪入 */
@keyframes page-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}
body { animation: page-in 0.4s var(--ease-out) both; }

/* 全站薄噪点纹理（消除屏幕塑料感） */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 50;
  pointer-events: none;
  opacity: 0.028;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  1 0 0 0 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* 自定义滚动条（Chrome / Edge / Safari） */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 999px;
  border: 2px solid var(--bg);
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover { background: var(--accent); background-clip: padding-box; border-color: var(--bg); }
/* Firefox */
html { scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }

/* 跳过链接（skip to main） */
.skip-link {
  position: absolute;
  top: -999px;
  left: 0;
  background: var(--text-strong);
  color: #fff;
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
  font-size: 14px;
  font-weight: 500;
  z-index: 999;
}
.skip-link:focus {
  top: 0;
  color: #fff;
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* 聚焦环：只对键盘用户显示，且样式精致 */
*:focus { outline: none; }
*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}
.btn:focus-visible,
.nav-link:focus-visible,
.brand:focus-visible {
  outline-offset: 3px;
  border-radius: 10px;
}
input:focus-visible,
textarea:focus-visible {
  outline: none;
  /* 保留原有的边框 + 光晕效果（已经有 :focus 样式） */
}

a { color: inherit; text-decoration: none; transition: color 0.2s var(--ease-out); }
a:hover { color: var(--accent); }
button { font-family: inherit; cursor: pointer; border: none; background: transparent; color: inherit; }
img, svg { display: block; max-width: 100%; }
::selection { background: var(--accent-soft); color: var(--accent-dark); }

/* ———— 标题排版 ———— */
h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-strong);
}
h1 { font-size: clamp(40px, 6vw, 68px); line-height: 1.05; letter-spacing: -0.035em; font-weight: 800; }
h2 { font-size: clamp(30px, 3.6vw, 44px); line-height: 1.15; letter-spacing: -0.025em; }
h3 { font-size: 20px; line-height: 1.35; letter-spacing: -0.01em; font-weight: 600; }
h4 { font-size: 15px; line-height: 1.4; font-weight: 600; }
p  { margin: 0; color: var(--text-muted); }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--edge);
}

.section { padding: 120px 0; position: relative; }
.section--soft { background: var(--bg-soft); }
.section--alt  { background: var(--bg-alt); }
.section--dark {
  background: var(--bg-dark);
  color: #fff;
}
.section--dark h2, .section--dark h3 { color: #fff; }
.section--dark p { color: rgba(255,255,255,0.65); }

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 72px;
}
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-dark);
  margin-bottom: 18px;
}
/* 编号前缀（Web3 代码感）：[ 01 ] 配 mono 字体 */
.section-eyebrow[data-num]::before {
  content: "[ " attr(data-num) " ]";
  color: var(--text-light);
  font-family: var(--mono);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  font-size: 11.5px;
}
.section-head h2 { margin-bottom: 14px; }
.section-head p { font-size: 17px; max-width: 560px; margin: 0 auto; }

/* ———— 渐变文字 ———— */
.text-gradient {
  background: linear-gradient(135deg, var(--accent) 0%, #00a0c4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ———— 图标 ———— */
.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  flex-shrink: 0;
  position: relative;
  transition: transform 0.4s var(--ease-out);
}
.icon::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--accent-soft), transparent);
  opacity: 0;
  transition: opacity 0.3s var(--ease-out);
}
.icon svg { width: 24px; height: 24px; position: relative; z-index: 1; }

/* ———— 按钮 ———— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  font-family: inherit;
  transition: all 0.25s var(--ease-out);
  cursor: pointer;
  border: 1px solid transparent;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  letter-spacing: -0.005em;
}
.btn--primary {
  background: var(--text-strong);
  color: #fff;
  box-shadow: 0 1px 2px rgba(0,0,0,0.08), inset 0 1px 0 rgba(255,255,255,0.08);
}
.btn--primary:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 12px 28px -8px var(--accent-glow), 0 2px 4px rgba(0,0,0,0.06);
}
.btn--primary::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.18) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.6s var(--ease-out);
}
.btn--primary:hover::after { transform: translateX(100%); }

/* 按压反馈：所有按钮 —— 下沉 + 阴影收拢（物理感） */
.btn:active {
  transform: translateY(1px) scale(0.985);
  transition-duration: 80ms;
}
.btn--primary:active {
  box-shadow: 0 2px 8px -4px var(--accent-glow), inset 0 1px 2px rgba(0,0,0,0.15);
}
.btn--outline:active {
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.08);
}
.btn--outline {
  background: transparent;
  color: var(--text-strong);
  border-color: var(--border-strong);
}
.btn--outline:hover {
  border-color: var(--text-strong);
  color: var(--text-strong);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.btn--ghost { background: var(--bg-alt); color: var(--text-strong); }
.btn--ghost:hover { background: var(--accent-soft); color: var(--accent-dark); }
.btn--sm { padding: 8px 16px; font-size: 14px; }
.btn--lg { padding: 15px 30px; font-size: 16px; }
.btn--block { width: 100%; }
.btn-arrow {
  transition: transform 0.25s var(--ease-out);
}
.btn:hover .btn-arrow { transform: translateX(3px); }

/* ———— 导航栏 ———— */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease-out), background 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}
.site-nav--scrolled {
  background: rgba(255, 255, 255, 0.86);
  border-bottom-color: var(--border);
  box-shadow: 0 1px 0 rgba(0,0,0,0.02), 0 4px 20px -8px rgba(10,30,20,0.05);
}
.nav-inner {
  width: 100%;
  padding: 0 var(--edge);
  height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-inner .brand { margin-right: auto; }   /* Logo 贴左，其余全部靠右 */
.nav-links { gap: 6px; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  font-family: var(--font-display);
  color: var(--text-strong);
  letter-spacing: -0.015em;
}
.brand:hover { color: var(--text-strong); }
.brand-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.03em;
  box-shadow: 0 4px 10px -2px var(--accent-glow), inset 0 1px 0 rgba(255,255,255,0.2);
}
.nav-links {
  display: flex;
  gap: 2px;
  align-items: center;
}
.nav-link {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text-muted);
  transition: all 0.2s var(--ease-out);
  position: relative;
}
.nav-link:hover { color: var(--text-strong); }
.nav-link--active { color: var(--text-strong); }
.nav-link--active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.lang-toggle {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  border: 1px solid var(--border);
  background: #fff;
  transition: all 0.2s var(--ease-out);
}
.lang-toggle:hover {
  color: var(--accent-dark);
  border-color: var(--accent);
  background: var(--accent-soft);
}
.nav-burger {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  color: var(--text-strong);
}
.nav-burger svg { width: 22px; height: 22px; }
.nav-mobile { display: none; }

/* ========================================================
   HERO — 左右分栏，动态背景
   ======================================================== */
.hero {
  position: relative;
  padding: 96px 0 120px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
/* 网格底纹 */
.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(15, 20, 17, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 20, 17, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 20%, transparent 80%);
}
/* 光晕 */
.hero-bg::after {
  content: "";
  position: absolute;
  top: -10%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 700px;
  background:
    radial-gradient(circle at 30% 40%, var(--accent-glow) 0%, transparent 45%),
    radial-gradient(circle at 70% 60%, rgba(0, 180, 220, 0.18) 0%, transparent 45%);
  filter: blur(60px);
  opacity: 0.7;
}
.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-text { max-width: 620px; }
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px 6px 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-strong);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  margin-bottom: 28px;
  box-shadow: var(--shadow-xs);
}
/* Web3 风：实时脉冲绿点（系统运行中的信号） */
.hero-tag-dot {
  position: relative;
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(0, 196, 140, 0.55);
  animation: live-pulse 2.2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}
@keyframes live-pulse {
  0%   { box-shadow: 0 0 0 0    rgba(0, 196, 140, 0.55); }
  70%  { box-shadow: 0 0 0 8px  rgba(0, 196, 140, 0); }
  100% { box-shadow: 0 0 0 0    rgba(0, 196, 140, 0); }
}
@media (prefers-reduced-motion: reduce) {
  .hero-tag-dot { animation: none; }
}
.hero-text h1 { margin-bottom: 24px; }
.hero-subtitle {
  font-size: 19px;
  color: var(--text-muted);
  margin-bottom: 40px;
  line-height: 1.6;
  max-width: 540px;
}
.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.hero-meta {
  display: flex;
  gap: 28px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: var(--text-muted);
}
.hero-meta-item svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
  flex-shrink: 0;
}

/* ———— Hero 右侧：全球节点世界地图 ———— */
.hero-visual {
  position: relative;
  aspect-ratio: 2 / 1;
  max-width: 580px;
  width: 100%;
  margin-left: auto;
  color: var(--border-strong);   /* 陆地圆点颜色继承自 currentColor */
}
.hero-visual svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.wm-land circle { opacity: 0.85; }

.wm-markers > g {
  transform-box: fill-box;
  transform-origin: center;
}
.wm-marker-dot {
  animation: marker-pulse 2.6s var(--ease-in-out) var(--delay, 0s) infinite;
  transform-box: fill-box;
  transform-origin: center;
}
.wm-marker-ring {
  animation: marker-ring 2.6s var(--ease-in-out) var(--delay, 0s) infinite;
  transform-box: fill-box;
  transform-origin: center;
}
.wm-marker-glow {
  animation: marker-glow 3.6s var(--ease-in-out) var(--delay, 0s) infinite;
  transform-box: fill-box;
  transform-origin: center;
}

@keyframes marker-pulse {
  0%, 100% { transform: scale(1);   opacity: 1; }
  50%      { transform: scale(1.35); opacity: 0.75; }
}
@keyframes marker-ring {
  0%   { transform: scale(0.7); opacity: 0.6; }
  70%  { transform: scale(2.2); opacity: 0; }
  100% { transform: scale(2.2); opacity: 0; }
}
@keyframes marker-glow {
  0%, 100% { opacity: 0.9; transform: scale(1); }
  50%      { opacity: 0.4; transform: scale(1.25); }
}

@media (prefers-reduced-motion: reduce) {
  .wm-marker-dot, .wm-marker-ring, .wm-marker-glow { animation: none; }
}

/* ———— 页面级 Hero（非首页） ———— */
.page-hero {
  position: relative;
  padding: 88px 0 72px;
  text-align: center;
  overflow: hidden;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 60% at 50% 0%, var(--accent-soft) 0%, transparent 60%),
    linear-gradient(to right, rgba(15, 20, 17, 0.03) 1px, transparent 1px) 0 0 / 48px 48px,
    linear-gradient(to bottom, rgba(15, 20, 17, 0.03) 1px, transparent 1px) 0 0 / 48px 48px;
  mask-image: linear-gradient(to bottom, #000 60%, transparent);
  -webkit-mask-image: linear-gradient(to bottom, #000 60%, transparent);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { font-size: clamp(34px, 4.2vw, 52px); margin-bottom: 16px; }
.page-hero p { max-width: 640px; margin: 0 auto; font-size: 18px; }

/* ========================================================
   卡片鼠标跟随光晕（Linear / Vercel 风格）
   通过 JS 更新 --mx --my，CSS 的 radial-gradient 跟着跑
   ======================================================== */
.feature-card,
.price-card,
.docs-card,
.value-card {
  --mx: 50%;
  --my: 50%;
}
.feature-card::after,
.price-card::after,
.docs-card::after,
.value-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(
    500px circle at var(--mx) var(--my),
    rgba(0, 196, 140, 0.09),
    transparent 45%
  );
  transition: opacity 0.35s var(--ease-out);
  z-index: 0;
}
.feature-card:hover::after,
.price-card:hover::after,
.docs-card:hover::after,
.value-card:hover::after { opacity: 1; }
/* 确保卡片内容在光晕上层 */
.feature-card > *,
.price-card > *,
.docs-card > *,
.value-card > * { position: relative; z-index: 1; }

/* ========================================================
   功能卡片
   ======================================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card {
  position: relative;
  padding: 36px 32px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  transition: all 0.35s var(--ease-out);
  overflow: hidden;
}
.feature-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--accent) 0%, transparent 40%);
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.3s var(--ease-out);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.feature-card:hover::before { opacity: 1; }
.feature-card:hover .icon { transform: scale(1.06) rotate(-3deg); }
.feature-card .icon { margin-bottom: 24px; }
.feature-card h3 { margin-bottom: 10px; color: var(--text-strong); }
.feature-card p { font-size: 14.5px; line-height: 1.7; }

/* ========================================================
   数据统计（含计数动画）
   ======================================================== */
.stats-wrap {
  padding: 72px 56px;
  background: var(--text-strong);
  color: #fff;
  border-radius: var(--r-2xl);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}
.stats-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(0, 196, 140, 0.2) 0%, transparent 45%),
    radial-gradient(circle at 80% 70%, rgba(0, 180, 220, 0.12) 0%, transparent 40%);
  pointer-events: none;
}
.stats-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
/* 深色区噪点纹理：给统计卡片一点"纸感" */
.stats-wrap {
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.035 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  background-blend-mode: overlay;
}
.stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat { text-align: center; position: relative; }
.stat + .stat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20%;
  bottom: 20%;
  width: 1px;
  background: rgba(255,255,255,0.08);
}
.stat-value {
  font-family: var(--mono);            /* Web3 感：等宽数字 */
  font-size: clamp(34px, 3.8vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin-bottom: 10px;
  background: linear-gradient(135deg, #fff 0%, #e6faf2 60%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat-label {
  font-size: 13.5px;
  color: rgba(255,255,255,0.65);
  letter-spacing: 0.01em;
}

/* ========================================================
   CTA 横幅
   ======================================================== */
.cta-banner {
  position: relative;
  text-align: center;
  padding: 96px 48px;
  background: linear-gradient(135deg, var(--accent) 0%, #00b5c4 100%);
  border-radius: var(--r-2xl);
  color: #fff;
  overflow: hidden;
  box-shadow: 0 28px 64px -20px var(--accent-glow);
}
.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 15% 20%, rgba(255,255,255,0.15) 0%, transparent 35%),
    radial-gradient(circle at 85% 80%, rgba(255,255,255,0.12) 0%, transparent 40%);
}
.cta-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse at center, #000 10%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 10%, transparent 70%);
}
.cta-banner > * { position: relative; z-index: 1; }
.cta-banner h2 { color: #fff; margin-bottom: 14px; }
.cta-banner p { color: rgba(255,255,255,0.9); margin: 0 auto 32px; max-width: 520px; font-size: 17px; }
.cta-banner .btn--primary {
  background: #fff;
  color: var(--accent-dark);
}
.cta-banner .btn--primary:hover {
  background: #fff;
  color: var(--accent-dark);
  box-shadow: 0 14px 32px -8px rgba(0,0,0,0.2);
}

/* ========================================================
   定价卡片
   ======================================================== */
/* 月付/年付切换开关 */
.billing-toggle-wrap {
  text-align: center;
  margin-bottom: 48px;
}
.billing-toggle {
  display: inline-flex;
  padding: 4px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 999px;
}
.billing-toggle button {
  padding: 9px 22px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: color 0.2s var(--ease-out), background 0.2s var(--ease-out), box-shadow 0.25s var(--ease-out);
}
.billing-toggle button:hover { color: var(--text-strong); }
.billing-toggle button.is-active {
  color: var(--text-strong);
  background: var(--bg);
  box-shadow: var(--shadow-sm);
}
.save-badge {
  padding: 2px 9px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--accent-dark);
  background: var(--accent-soft);
  border-radius: 999px;
}

/* 年付总额小字（仅年付模式显示） */
.price-annual-total {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: -20px;
  margin-bottom: 28px;
}

/* 两种价格的显示/隐藏 */
.pricing-grid[data-billing="monthly"] .price-amount--annual,
.pricing-grid[data-billing="monthly"] .price-annual-total { display: none; }
.pricing-grid[data-billing="annual"] .price-amount--monthly { display: none; }

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: stretch;
}
.price-card {
  position: relative;
  padding: 40px 36px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  display: flex;
  flex-direction: column;
  transition: all 0.35s var(--ease-out);
}
.price-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-lg);
}
.price-card--featured {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg) 100%), var(--text-strong);
  border: none;
  color: #fff;
  position: relative;
  z-index: 1;
}
.price-card--featured::before {
  content: "";
  position: absolute;
  inset: -1px;
  z-index: -1;
  border-radius: var(--r-xl);
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-dark) 100%);
  padding: 2px;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
}
.price-card--featured:hover {
  box-shadow: 0 24px 48px -12px var(--accent-glow), var(--shadow-lg);
}
.price-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 16px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: #fff;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  border-radius: 999px;
  box-shadow: 0 4px 12px -2px var(--accent-glow);
  text-transform: uppercase;
}
.price-card h3 { font-size: 22px; margin-bottom: 8px; color: var(--text-strong); }
.price-desc { font-size: 14px; color: var(--text-muted); margin-bottom: 32px; }
.price-amount {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 32px;
}
.price-currency { font-family: var(--mono); font-size: 22px; color: var(--text-muted); font-weight: 500; }
.price-num {
  font-family: var(--mono);            /* Web3 感：等宽价格 */
  font-size: 52px;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--text-strong);
}
.price-period { font-size: 14px; color: var(--text-muted); margin-left: 4px; }
.price-features {
  list-style: none;
  padding: 0;
  margin: 0 0 36px;
  flex: 1;
}
.price-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 0;
  font-size: 14.5px;
  color: var(--text);
  border-bottom: 1px dashed var(--border-soft);
}
.price-features li:last-child { border-bottom: none; }
.price-features svg {
  width: 18px;
  height: 18px;
  color: var(--accent);
  flex-shrink: 0;
}

/* ========================================================
   文档页卡片
   ======================================================== */
.docs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.docs-card {
  padding: 36px 36px 32px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: inherit;
  transition: all 0.35s var(--ease-out);
  position: relative;
  overflow: hidden;
}
.docs-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-lg);
  color: inherit;
}
.docs-card:hover .icon { transform: scale(1.05) rotate(-3deg); }
.docs-card .icon { margin-bottom: 16px; }
.docs-card h3 { color: var(--text-strong); }
.docs-card p { font-size: 14.5px; line-height: 1.7; margin-bottom: 14px; flex: 1; }
.docs-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--accent-dark);
  transition: gap 0.25s var(--ease-out);
}
.docs-card:hover .docs-link { gap: 10px; }

/* 锚点跳转时避免被粘性导航挡住 */
[id] { scroll-margin-top: calc(var(--nav-h) + 16px); }

@media (max-width: 900px) {
  .docs-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .docs-grid { grid-template-columns: 1fr; }
}

/* ========================================================
   下载卡片
   ======================================================== */
.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.download-card {
  padding: 36px 32px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  text-align: center;
  transition: all 0.35s var(--ease-out);
  display: flex;
  flex-direction: column;
}
.download-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-lg);
}
.download-card:hover .icon { transform: scale(1.08); }

/* 推荐卡（基于 UA 检测到的用户平台） */
.download-card--primary {
  border-color: var(--accent);
  box-shadow: 0 20px 48px -16px var(--accent-glow);
}
.download-card--primary .icon {
  background: var(--accent-soft);
  color: var(--accent-dark);
}
.download-badge {
  display: none;
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--accent-dark);
  background: var(--accent-soft);
  border-radius: 999px;
}
.download-card { position: relative; }
.download-card--primary .download-badge { display: inline-block; }

/* 即将上线标签（docs 页） */
.badge-soon {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 9px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text-muted);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 999px;
  vertical-align: 2px;
}
.download-card .icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  background: var(--bg-alt);
  color: var(--text-strong);
  border-radius: 16px;
}
.download-card .icon svg { width: 32px; height: 32px; }
.download-card h3 { margin-bottom: 6px; color: var(--text-strong); }
.download-card p { font-size: 14px; margin-bottom: 24px; }
.download-meta {
  display: flex;
  justify-content: center;
  gap: 20px;
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 28px;
  padding-top: 20px;
  border-top: 1px dashed var(--border);
}
.download-meta span span { color: var(--text-muted); margin-right: 3px; }

.install-guide {
  margin-top: 72px;
  padding: 48px;
  background: linear-gradient(135deg, var(--bg-soft) 0%, var(--bg) 100%);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.install-guide::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-soft) 0%, transparent 60%);
  filter: blur(40px);
  opacity: 0.5;
  pointer-events: none;
}
.install-guide > * { position: relative; z-index: 1; }
.install-guide h3 { margin-bottom: 12px; color: var(--text-strong); font-size: 22px; }
.install-guide p { max-width: 580px; margin: 0 auto; font-size: 15.5px; }

/* ========================================================
   About
   ======================================================== */
.about-story {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}
.about-story h2 { margin-bottom: 28px; }
.about-story p { font-size: 17px; line-height: 1.8; margin-bottom: 22px; color: var(--text); }
.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.value-card {
  padding: 40px 36px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  transition: all 0.35s var(--ease-out);
  position: relative;
  overflow: hidden;
}
.value-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 0;
  background: linear-gradient(180deg, var(--accent), var(--accent-dark));
  transition: height 0.4s var(--ease-out);
}
.value-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.value-card:hover::before { height: 100%; }
.value-card h3 { margin-bottom: 10px; color: var(--text-strong); font-size: 22px; }
.value-card p { font-size: 15px; line-height: 1.7; }

/* ========================================================
   Contact
   ======================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 64px;
}
.contact-card {
  padding: 40px 36px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  text-align: center;
  color: inherit;
  transition: all 0.35s var(--ease-out);
  position: relative;
  overflow: hidden;
}
.contact-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-dark));
  transition: width 0.4s var(--ease-out), left 0.4s var(--ease-out);
}
.contact-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  color: inherit;
  border-color: var(--border-strong);
}
.contact-card:hover::before { width: 100%; left: 0; }
.contact-card .icon { margin: 0 auto 20px; width: 56px; height: 56px; }
.contact-card .icon svg { width: 28px; height: 28px; }
.contact-card h3 { margin-bottom: 6px; color: var(--text-strong); }
.contact-card p { font-size: 14px; margin-bottom: 16px; }
.contact-link {
  font-family: var(--mono);
  font-size: 14.5px;
  color: var(--accent-dark);
  font-weight: 500;
}

/* ========================================================
   404 页
   ======================================================== */
.notfound {
  position: relative;
  min-height: calc(100vh - var(--nav-h));
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px;
  overflow: hidden;
}
.notfound::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 35%, var(--accent-soft) 0%, transparent 65%),
    linear-gradient(to right, rgba(15, 20, 17, 0.03) 1px, transparent 1px) 0 0 / 56px 56px,
    linear-gradient(to bottom, rgba(15, 20, 17, 0.03) 1px, transparent 1px) 0 0 / 56px 56px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 20%, transparent 85%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 20%, transparent 85%);
  pointer-events: none;
}
.notfound-inner { position: relative; z-index: 1; max-width: 600px; }
.notfound-code {
  font-family: var(--font-display);
  font-size: clamp(100px, 18vw, 180px);
  font-weight: 800;
  letter-spacing: -0.06em;
  line-height: 0.95;
  background: linear-gradient(135deg, var(--accent) 0%, #00b5c4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 24px;
}
.notfound h1 {
  font-size: clamp(28px, 4vw, 40px);
  margin-bottom: 14px;
}
.notfound p {
  font-size: 17px;
  margin-bottom: 36px;
  color: var(--text-muted);
}

/* ========================================================
   法律文档页（隐私 / 条款）
   ======================================================== */
.legal-doc {
  max-width: 780px;
  margin: 0 auto;
}
.legal-meta {
  display: inline-block;
  padding: 6px 14px;
  font-size: 13px;
  color: var(--text-muted);
  background: var(--bg-alt);
  border-radius: 999px;
  margin-bottom: 40px;
}
.legal-doc section { margin-bottom: 40px; }
.legal-doc h2 {
  font-size: 22px;
  margin-bottom: 14px;
  color: var(--text-strong);
  letter-spacing: -0.01em;
}
.legal-doc p {
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text);
}
.legal-doc p + p { margin-top: 14px; }   /* 段落之间留白 */

/* 未启用时整段隐藏（由 JS 控制） */
[data-if-crisp][hidden] { display: none; }
.legal-doc .legal-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding: 11px 20px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text-strong);
  transition: all 0.25s var(--ease-out);
}
.legal-doc .legal-cta:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.legal-doc .legal-cta:hover .btn-arrow { transform: translateX(3px); }
.legal-doc .legal-cta .btn-arrow { transition: transform 0.25s var(--ease-out); }

/* ========================================================
   FAQ
   ======================================================== */
.faq-grid {
  max-width: 800px;
  margin: 0 auto;
  display: grid;
  gap: 12px;
}
.faq-item {
  padding: 26px 28px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  transition: all 0.25s var(--ease-out);
}
.faq-item:hover { border-color: var(--border-strong); box-shadow: var(--shadow-sm); }
.faq-item h4 { font-size: 16.5px; margin-bottom: 8px; color: var(--text-strong); }
.faq-item p { font-size: 14.5px; line-height: 1.7; }

/* ========================================================
   页脚
   ======================================================== */
.site-footer {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  padding: 80px 0 32px;
  margin-top: 120px;
}
.footer-inner {
  width: 100%;
  padding: 0 var(--edge);
  display: grid;
  grid-template-columns: 1.4fr 2fr;
  gap: 72px;
}
.footer-brand .brand { margin-bottom: 16px; }
.footer-tagline { font-size: 14.5px; color: var(--text-muted); max-width: 320px; line-height: 1.65; }
.footer-cols {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px;
}
.footer-col h4 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-light);
  margin-bottom: 16px;
  font-weight: 600;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 10px; }
.footer-col a {
  position: relative;
  display: inline-block;
  font-size: 14.5px;
  color: var(--text-muted);
  transition: color 0.2s var(--ease-out);
}
.footer-col a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 1px;
  background: var(--accent-dark);
  transition: width 0.25s var(--ease-out);
}
.footer-col a:hover { color: var(--accent-dark); }
.footer-col a:hover::after { width: 100%; }
.footer-bottom {
  width: 100%;
  margin: 64px 0 0;
  padding: 28px var(--edge) 0;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-light);
  text-align: center;
}

/* ========================================================
   滚动入场动画
   ======================================================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }
.reveal[data-delay="4"] { transition-delay: 0.32s; }
.reveal[data-delay="5"] { transition-delay: 0.4s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ========================================================
   响应式
   ======================================================== */
@media (max-width: 1020px) {
  .hero { padding: 72px 0 96px; }
  .hero-inner { grid-template-columns: 1fr; gap: 48px; text-align: center; }
  .hero-text { max-width: 640px; margin: 0 auto; }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .hero-ctas { justify-content: center; }
  .hero-meta { justify-content: center; }
  .hero-visual { max-width: 520px; margin: 0 auto; }
}

@media (max-width: 900px) {
  .section { padding: 88px 0; }
  .section-head { margin-bottom: 56px; }
  .features-grid,
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 48px 24px; }
  .stats-wrap { padding: 56px 40px; }
  .stat + .stat::before { display: none; }
  .footer-inner { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 900px) {
  :root { --edge: 28px; }
}

/* 手机窄屏：地图拉高到 1.7:1，SVG 用 slice 填满容器 → 节点不再缩成小米粒 */
@media (max-width: 420px) {
  .hero-visual { aspect-ratio: 17 / 10; max-width: 100%; }
}

@media (max-width: 640px) {
  :root { --edge: 20px; }
  .section { padding: 72px 0; }
  .hero { padding: 48px 0 72px; }
  .hero-visual { max-width: 440px; }
  .hero-subtitle { font-size: 17px; }
  .nav-inner { gap: 16px; }
  .nav-links,
  .nav-actions .btn { display: none; }
  .nav-burger { display: inline-flex; align-items: center; justify-content: center; }
  .nav-mobile {
    display: none;
    padding: 8px 20px 20px;
    flex-direction: column;
    gap: 2px;
    border-top: 1px solid var(--border);
    background: rgba(255,255,255,0.96);
  }
  .nav-mobile--open { display: flex; }
  .nav-mobile a {
    padding: 14px 10px;
    font-size: 15.5px;
    font-weight: 500;
    color: var(--text);
    border-radius: 10px;
    transition: background 0.2s var(--ease-out);
  }
  .nav-mobile a:hover { background: var(--bg-alt); }
  .features-grid,
  .pricing-grid,
  .download-grid,
  .values-grid,
  .contact-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); padding: 0; }
  .stats-wrap { padding: 44px 28px; }
  .stat-value { font-size: 32px; }
  .footer-cols { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .cta-banner { padding: 64px 24px; }
  .install-guide { padding: 36px 24px; }
  .price-card { padding: 32px 28px; }
  .page-hero { padding: 64px 0 56px; }
}