.design-style-smart_network_blockchain_development_platform_3ld{
  --container:1120px;--container-lg:1360px;--container-xl:1600px;
  --gutter:clamp(14px,2vw,28px);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:22px;--sp-6:30px;--sp-7:42px;--sp-8:56px;
  --r-sm:2px;--r-md:4px;--r-lg:6px;--r-pill:999px;
  --sh-1:0 1px 0 oklch(0.94 0.02 206 / .05) inset,0 2px 8px oklch(0.15 0.03 206 / .38);
  --sh-2:0 1px 0 oklch(0.94 0.02 206 / .06) inset,0 10px 26px oklch(0.15 0.03 206 / .46);
  --sh-3:0 1px 0 oklch(0.94 0.02 206 / .08) inset,0 22px 54px oklch(0.15 0.03 206 / .56);
  --fs-xs:clamp(.71rem,.69rem + .1vw,.77rem);
  --fs-sm:clamp(.81rem,.79rem + .15vw,.88rem);
  --fs-md:clamp(.94rem,.89rem + .24vw,1.04rem);
  --fs-lg:clamp(1.12rem,1.02rem + .48vw,1.36rem);
  --fs-xl:clamp(1.44rem,1.26rem + .95vw,1.92rem);
  --fs-2xl:clamp(1.82rem,1.44rem + 1.9vw,2.72rem);
  --fs-3xl:clamp(2.3rem,1.74rem + 2.85vw,3.42rem);
  --lh-tight:1.1;--lh-snug:1.3;--lh-body:1.6;
  --ease:cubic-bezier(.4,0,.2,1);--ease-out:cubic-bezier(.16,1,.3,1);
  --t-fast:.15s;--t-base:.25s;--t-slow:.45s;
  --bg:oklch(0.15 0.03 206);
  --surface:oklch(0.21 0.045 206);
  --primary:oklch(0.72 0.12 206);
  --secondary:oklch(0.62 0.12 238);
  --accent:oklch(0.78 0.14 46);
  --accent-2:oklch(0.90 0.1 46);
  --text:oklch(0.94 0.02 206);
  --muted:oklch(0.64 0.028 206);
  --line:oklch(0.32 0.03 206);
  --line-soft:oklch(0.27 0.025 206);
  box-sizing:border-box;
  display:block;
  position:relative;
  background-color:var(--bg);
  background-image:
    linear-gradient(oklch(0.72 0.12 206 / .05) 1px,transparent 1px),
    linear-gradient(90deg,oklch(0.72 0.12 206 / .05) 1px,transparent 1px),
    radial-gradient(120% 70% at 12% -10%,oklch(0.72 0.12 206 / .10),transparent 60%),
    radial-gradient(90% 60% at 100% 0%,oklch(0.78 0.14 46 / .06),transparent 62%);
  background-size:64px 64px,64px 64px,100% 100%,100% 100%;
  color:var(--text);
  font-family:"Helvetica Neue","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:var(--fs-md);
  line-height:var(--lh-body);
  letter-spacing:-.012em;
  overflow-wrap:break-word;
  word-break:break-word;
  overflow-x:clip;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
.design-style-smart_network_blockchain_development_platform_3ld *,
.design-style-smart_network_blockchain_development_platform_3ld *::before,
.design-style-smart_network_blockchain_development_platform_3ld *::after{box-sizing:border-box;min-width:0;}
.design-style-smart_network_blockchain_development_platform_3ld img,
.design-style-smart_network_blockchain_development_platform_3ld svg{max-width:100%;height:auto;display:block;}
.design-style-smart_network_blockchain_development_platform_3ld h1,
.design-style-smart_network_blockchain_development_platform_3ld h2,
.design-style-smart_network_blockchain_development_platform_3ld h3,
.design-style-smart_network_blockchain_development_platform_3ld h4,
.design-style-smart_network_blockchain_development_platform_3ld p,
.design-style-smart_network_blockchain_development_platform_3ld ul,
.design-style-smart_network_blockchain_development_platform_3ld li{margin:0;padding:0;list-style:none;overflow-wrap:break-word;}

/* ---------- 顶部提示条 ---------- */
.design-style-smart_network_blockchain_development_platform_3ld .sn-note{
  position:relative;z-index:30;
  display:flex;align-items:center;justify-content:center;gap:var(--sp-2);
  padding:calc(var(--sp-2) - 1px) var(--gutter);
  background:linear-gradient(90deg,oklch(0.205 0.042 206),oklch(0.185 0.036 206) 55%,oklch(0.205 0.042 206));
  border-bottom:1px solid var(--line);
  font-size:var(--fs-xs);letter-spacing:.055em;color:var(--muted);
  text-align:center;line-height:1.45;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-note span{min-width:0;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-note b{color:var(--accent-2);font-weight:800;letter-spacing:.02em;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-note i{
  width:7px;height:7px;border-radius:var(--r-pill);background:var(--accent);
  box-shadow:0 0 0 3px oklch(0.78 0.14 46 / .15);flex:none;
  animation:sn-pulse 3.4s var(--ease) infinite;
}

/* ---------- 布局壳 ---------- */
.design-style-smart_network_blockchain_development_platform_3ld .sn-shell{
  width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gutter);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-rule{
  height:1px;background:var(--line-soft);border:0;margin:0;
}

/* ---------- 顶栏导航 ---------- */
.design-style-smart_network_blockchain_development_platform_3ld .sn-top{
  position:sticky;top:0;z-index:20;
  background:oklch(0.15 0.03 206 / .82);
  -webkit-backdrop-filter:blur(10px) saturate(140%);
  backdrop-filter:blur(10px) saturate(140%);
  border-bottom:1px solid var(--line);
  box-shadow:0 6px 20px oklch(0.15 0.03 206 / .28);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-top .sn-shell{
  display:flex;align-items:center;gap:var(--sp-5);min-height:54px;flex-wrap:wrap;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-brand{
  display:inline-flex;align-items:center;gap:var(--sp-3);text-decoration:none;color:var(--text);
  min-width:0;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-brand span{
  font-size:var(--fs-lg);font-weight:900;letter-spacing:-.045em;line-height:1;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-glyph{
  width:26px;height:26px;flex:none;border:1px solid var(--line);border-radius:var(--r-md);
  background:linear-gradient(140deg,oklch(0.72 0.12 206 / .28),oklch(0.78 0.14 46 / .18));
  display:grid;place-items:center;box-shadow:var(--sh-1);
  transition:border-color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-brand:hover .sn-glyph{
  border-color:var(--primary);transform:scale(1.04);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-glyph svg{width:15px;height:15px;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-nav{
  display:flex;align-items:center;gap:var(--sp-1);flex-wrap:wrap;margin-left:auto;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-nav a{
  display:inline-flex;align-items:center;min-height:32px;
  padding:0 var(--sp-3);border-radius:var(--r-sm);
  color:var(--muted);text-decoration:none;font-size:var(--fs-sm);font-weight:700;
  transition:color var(--t-fast) var(--ease),background-color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-nav a:hover,
.design-style-smart_network_blockchain_development_platform_3ld .sn-nav a:focus-visible{
  color:var(--text);background:oklch(0.72 0.12 206 / .12);transform:translateY(-1px);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-cta-mini{
  display:inline-flex;align-items:center;gap:var(--sp-2);min-height:32px;
  padding:0 var(--sp-4);border-radius:var(--r-sm);
  background:var(--accent);color:oklch(0.18 0.03 46);font-weight:900;font-size:var(--fs-sm);
  text-decoration:none;letter-spacing:-.01em;
  transition:transform var(--t-fast) var(--ease),box-shadow var(--t-base) var(--ease),background-color var(--t-fast) var(--ease);
  box-shadow:var(--sh-1);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-cta-mini:hover{
  transform:translateY(-1px) scale(1.02);background:var(--accent-2);box-shadow:var(--sh-2);
}

/* ---------- Hero 上图下文沉浸式 ---------- */
.design-style-smart_network_blockchain_development_platform_3ld .sn-hero{padding:var(--sp-6) 0 var(--sp-7);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-hero-grid{
  display:grid;grid-template-columns:minmax(0,1fr);gap:var(--sp-5);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-hero-figure{
  position:relative;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-3);background:var(--surface);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-hero-figure img{
  width:100%;aspect-ratio:16/6;object-fit:cover;
  filter:saturate(.88) contrast(1.05) brightness(.92);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-hero-figure::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(180deg,oklch(0.15 0.03 206 / .12) 0%,oklch(0.15 0.03 206 / .78) 100%),
    repeating-linear-gradient(90deg,oklch(0.94 0.02 206 / .07) 0 1px,transparent 1px 72px);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-hero-tag{
  position:absolute;left:var(--sp-4);bottom:var(--sp-4);z-index:2;
  max-width:calc(100% - var(--sp-4) * 2);
  display:inline-flex;align-items:center;gap:var(--sp-2);
  padding:var(--sp-2) var(--sp-3);border-radius:var(--r-sm);
  background:oklch(0.15 0.03 206 / .72);border:1px solid var(--line);
-webkit-backdrop-filter:blur(8px);
backdrop-filter:blur(8px);
  font-size:var(--fs-xs);color:var(--text);letter-spacing:.04em;line-height:1.35;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-hero-tag em{
  font-style:normal;color:var(--accent-2);font-weight:800;flex:none;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-eyebrow{
  display:inline-flex;align-items:center;gap:var(--sp-2);
  font-size:var(--fs-xs);letter-spacing:.18em;text-transform:uppercase;
  color:var(--primary);font-weight:800;margin-bottom:var(--sp-3);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-eyebrow::before{
  content:"";width:22px;height:1px;background:var(--accent);flex:none;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-h1{
  font-size:var(--fs-3xl);line-height:var(--lh-tight);letter-spacing:-.055em;font-weight:900;
  max-width:22ch;text-wrap:balance;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-h1 mark{
  background:none;color:var(--accent-2);
  text-decoration:underline;text-decoration-color:var(--accent);
  text-decoration-thickness:3px;text-underline-offset:6px;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-lede{
  margin-top:var(--sp-4);color:var(--muted);font-size:var(--fs-md);max-width:62ch;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-hero-cta{
  display:flex;flex-wrap:wrap;gap:var(--sp-3);margin-top:var(--sp-5);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:var(--sp-2);min-height:42px;
  padding:0 var(--sp-5);border-radius:var(--r-sm);
  font-size:var(--fs-sm);font-weight:900;letter-spacing:-.01em;text-decoration:none;
  border:1px solid var(--line);color:var(--text);
  background:var(--surface);box-shadow:var(--sh-1);
  transition:transform var(--t-fast) var(--ease),box-shadow var(--t-base) var(--ease),border-color var(--t-fast) var(--ease),background-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-btn:hover{
  transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--primary);
  background:oklch(0.235 0.048 206);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-btn:active{transform:translateY(0) scale(.99);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-btn--primary{
  background:var(--primary);color:oklch(0.16 0.03 206);border-color:oklch(0.78 0.1 206);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-btn--primary:hover{
  background:var(--accent-2);border-color:var(--accent-2);color:oklch(0.18 0.03 46);
}

.design-style-smart_network_blockchain_development_platform_3ld .sn-metrics{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--sp-3);
  margin-top:var(--sp-5);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-metric{
  padding:var(--sp-3) var(--sp-4);border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--surface);box-shadow:var(--sh-1);
  transition:border-color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease),box-shadow var(--t-base) var(--ease);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-metric:hover{
  border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--sh-2);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-metric b{
  display:block;font-size:var(--fs-xl);font-weight:900;letter-spacing:-.05em;line-height:1.1;color:var(--accent-2);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-metric span{font-size:var(--fs-xs);color:var(--muted);}

/* ---------- 主选项卡（纯 CSS details 模拟） ---------- */
.design-style-smart_network_blockchain_development_platform_3ld .sn-tabs{
  margin-top:var(--sp-6);border:1px solid var(--line);border-radius:var(--r-lg);
  background:linear-gradient(180deg,var(--surface),oklch(0.185 0.04 206));
  box-shadow:var(--sh-2);overflow:hidden;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-tabbar{
  display:flex;flex-wrap:wrap;gap:var(--sp-1);
  padding:var(--sp-2);border-bottom:1px solid var(--line);
  background:oklch(0.18 0.035 206);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-tabbar a{
  display:inline-flex;align-items:center;gap:var(--sp-2);min-height:34px;
  padding:0 var(--sp-4);border-radius:var(--r-sm);
  font-size:var(--fs-sm);font-weight:800;color:var(--muted);text-decoration:none;
  border:1px solid transparent;
  transition:color var(--t-fast) var(--ease),background-color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-tabbar a:hover,
.design-style-smart_network_blockchain_development_platform_3ld .sn-tabbar a:focus-visible{
  color:var(--text);background:oklch(0.72 0.12 206 / .12);border-color:var(--line);transform:translateY(-1px);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-tabbar a i{
  font-style:normal;font-size:var(--fs-xs);color:var(--accent);font-weight:900;
}

/* ---------- 通用区块 ---------- */
.design-style-smart_network_blockchain_development_platform_3ld .sn-sec{padding:var(--sp-7) 0;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-sec--tight{padding:var(--sp-6) 0;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:var(--sp-5);
  flex-wrap:wrap;margin-bottom:var(--sp-5);
  border-bottom:1px solid var(--line);padding-bottom:var(--sp-3);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-sec-head > *{min-width:0;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-h2{
  font-size:var(--fs-2xl);font-weight:900;letter-spacing:-.05em;line-height:var(--lh-snug);text-wrap:balance;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-h3{
  font-size:var(--fs-lg);font-weight:900;letter-spacing:-.035em;line-height:var(--lh-snug);text-wrap:balance;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-sub{color:var(--muted);font-size:var(--fs-sm);max-width:56ch;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-kicker{
  font-size:var(--fs-xs);letter-spacing:.16em;text-transform:uppercase;color:var(--primary);font-weight:800;
  display:block;margin-bottom:var(--sp-2);
}

/* ---------- 合作伙伴墙 ---------- */
.design-style-smart_network_blockchain_development_platform_3ld .sn-partners{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--sp-2);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-partner{
  display:flex;align-items:center;gap:var(--sp-3);min-width:0;
  padding:var(--sp-3);border:1px solid var(--line-soft);border-radius:var(--r-md);
  background:oklch(0.19 0.038 206);
  transition:border-color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease),box-shadow var(--t-base) var(--ease);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-partner:hover{
  border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--sh-1);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-partner > div{min-width:0;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-partner b{
  display:block;font-size:var(--fs-sm);font-weight:900;letter-spacing:-.02em;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-partner span{font-size:var(--fs-xs);color:var(--muted);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-partner svg{width:22px;height:22px;flex:none;color:var(--primary);}

/* ---------- 图文混排特写 ---------- */
.design-style-smart_network_blockchain_development_platform_3ld .sn-feature{
  display:grid;grid-template-columns:minmax(0,1fr);gap:var(--sp-5);align-items:start;
  padding:var(--sp-4);border:1px solid var(--line);border-radius:var(--r-lg);
  background:var(--surface);box-shadow:var(--sh-1);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-feature > div{min-width:0;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-feature-media{
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;background:var(--bg);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-feature-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  filter:saturate(.9) brightness(.95);
  transition:transform var(--t-slow) var(--ease-out);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-feature:hover .sn-feature-media img{transform:scale(1.03);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-feature-list{margin-top:var(--sp-4);display:grid;gap:var(--sp-2);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-feature-list li{
  display:grid;grid-template-columns:auto minmax(0,1fr);gap:var(--sp-3);align-items:start;
  padding:var(--sp-3);border:1px solid var(--line-soft);border-radius:var(--r-md);
  background:oklch(0.185 0.038 206);font-size:var(--fs-sm);color:var(--muted);
  transition:border-color var(--t-fast) var(--ease),background-color var(--t-fast) var(--ease);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-feature-list li:hover{
  border-color:var(--line);background:oklch(0.2 0.04 206);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-feature-list li > span:last-child{min-width:0;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-feature-list li b{color:var(--text);font-weight:800;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-idx{
  width:24px;height:24px;flex:none;border-radius:var(--r-sm);display:grid;place-items:center;
  background:oklch(0.72 0.12 206 / .16);border:1px solid var(--line);
  color:var(--accent-2);font-size:var(--fs-xs);font-weight:900;
}

/* ---------- 大图叠层特性卡（4 个） ---------- */
.design-style-smart_network_blockchain_development_platform_3ld .sn-cards{
  display:grid;grid-template-columns:minmax(0,1fr);gap:var(--sp-4);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-card{
  position:relative;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  background:var(--surface);box-shadow:var(--sh-2);
  transition:transform var(--t-base) var(--ease),box-shadow var(--t-base) var(--ease),border-color var(--t-base) var(--ease);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-card:hover{
  transform:translateY(-3px) scale(1.008);box-shadow:var(--sh-3);border-color:var(--primary);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-card-media{position:relative;background:var(--bg);overflow:hidden;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-card-media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;filter:saturate(.88) brightness(.9);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 30%,oklch(0.15 0.03 206 / .88) 100%);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-card-no{
  position:absolute;top:var(--sp-3);left:var(--sp-3);z-index:2;
  font-size:var(--fs-xs);font-weight:900;letter-spacing:.1em;
  padding:2px var(--sp-2);border-radius:var(--r-sm);
  background:oklch(0.15 0.03 206 / .74);border:1px solid var(--line);color:var(--accent-2);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-card-body{
  position:relative;margin-top:calc(-1 * var(--sp-6));z-index:2;
  padding:0 var(--sp-4) var(--sp-4);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-card-body h3{font-size:var(--fs-lg);font-weight:900;letter-spacing:-.035em;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-card-body p{color:var(--muted);font-size:var(--fs-sm);margin-top:var(--sp-2);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-chips{display:flex;flex-wrap:wrap;gap:var(--sp-2);margin-top:var(--sp-3);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-chip{
  font-size:var(--fs-xs);font-weight:800;color:var(--primary);
  padding:2px var(--sp-2);border:1px solid var(--line);border-radius:var(--r-pill);
  background:oklch(0.72 0.12 206 / .10);
}

/* ---------- 服务/价格档位 ---------- */
.design-style-smart_network_blockchain_development_platform_3ld .sn-plans{
  display:grid;grid-template-columns:minmax(0,1fr);gap:var(--sp-4);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-plan{
  display:flex;flex-direction:column;gap:var(--sp-3);min-width:0;
  padding:var(--sp-4);border:1px solid var(--line);border-radius:var(--r-lg);
  background:linear-gradient(180deg,oklch(0.215 0.045 206),oklch(0.185 0.04 206));
  box-shadow:var(--sh-1);
  transition:transform var(--t-base) var(--ease),box-shadow var(--t-base) var(--ease),border-color var(--t-base) var(--ease);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-plan:hover{
  transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--primary);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-plan--hot{border-color:var(--accent);box-shadow:var(--sh-2);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-plan--hot:hover{border-color:var(--accent-2);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-plan h3{font-size:var(--fs-md);font-weight:900;letter-spacing:-.03em;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-price{
  font-size:var(--fs-2xl);font-weight:900;letter-spacing:-.06em;line-height:1;
  color:var(--accent-2);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-price small{font-size:var(--fs-xs);color:var(--muted);font-weight:700;letter-spacing:0;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-plan ul{display:grid;gap:var(--sp-2);font-size:var(--fs-sm);color:var(--muted);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-plan ul li{display:grid;grid-template-columns:auto minmax(0,1fr);gap:var(--sp-2);align-items:start;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-plan ul li::before{
  content:"›";color:var(--primary);font-weight:900;line-height:1.4;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-plan .sn-btn{margin-top:auto;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-badge{
  align-self:flex-start;font-size:var(--fs-xs);font-weight:900;letter-spacing:.08em;
  padding:2px var(--sp-2);border-radius:var(--r-sm);
  background:oklch(0.78 0.14 46 / .16);color:var(--accent-2);border:1px solid oklch(0.78 0.14 46 / .4);
}

/* ---------- 关键数据条 ---------- */
.design-style-smart_network_blockchain_development_platform_3ld .sn-stats{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--sp-3);
  padding:var(--sp-4);border:1px solid var(--line);border-radius:var(--r-lg);
  background:oklch(0.19 0.04 206);box-shadow:var(--sh-1);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-stat{padding:var(--sp-3);border-left:2px solid var(--line);min-width:0;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-stat b{
  display:block;font-size:var(--fs-xl);font-weight:900;letter-spacing:-.05em;line-height:1.1;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-stat b em{font-style:normal;color:var(--accent);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-stat span{font-size:var(--fs-xs);color:var(--muted);display:block;margin-top:var(--sp-1);}

/* ---------- 应用场景（scroll-snap 分段吸附） ---------- */
.design-style-smart_network_blockchain_development_platform_3ld .sn-scenes{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(min(78%,320px),1fr);
  gap:var(--sp-4);overflow-x:auto;overscroll-behavior-x:contain;
  scroll-snap-type:x mandatory;padding-bottom:var(--sp-3);
  scrollbar-width:thin;scrollbar-color:var(--line) transparent;
  -webkit-overflow-scrolling:touch;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-scenes::-webkit-scrollbar{height:6px;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-scenes::-webkit-scrollbar-thumb{background:var(--line);border-radius:var(--r-pill);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-scene{
  scroll-snap-align:start;display:flex;flex-direction:column;min-width:0;
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  background:var(--surface);box-shadow:var(--sh-1);
  transition:border-color var(--t-base) var(--ease),box-shadow var(--t-base) var(--ease);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-scene:hover{border-color:var(--primary);box-shadow:var(--sh-2);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-scene img{
  width:100%;aspect-ratio:16/10;object-fit:cover;filter:saturate(.86) brightness(.92);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-scene div{padding:var(--sp-4);min-width:0;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-scene h3{font-size:var(--fs-md);font-weight:900;letter-spacing:-.03em;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-scene p{font-size:var(--fs-sm);color:var(--muted);margin-top:var(--sp-2);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-scene code{
  display:inline-block;margin-top:var(--sp-3);font-size:var(--fs-xs);
  padding:2px var(--sp-2);border-radius:var(--r-sm);
  background:oklch(0.15 0.03 206);border:1px solid var(--line);color:var(--accent-2);
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  overflow-wrap:anywhere;
}

/* ---------- 实用指导清单（details 手风琴，纯 CSS） ---------- */
.design-style-smart_network_blockchain_development_platform_3ld .sn-guide{
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--surface);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-guide details{border-bottom:1px solid var(--line-soft);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-guide details:last-child{border-bottom:0;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-guide summary{
  cursor:pointer;list-style:none;display:grid;grid-template-columns:auto minmax(0,1fr) auto;
  gap:var(--sp-3);align-items:center;padding:var(--sp-3) var(--sp-4);
  font-size:var(--fs-sm);font-weight:900;letter-spacing:-.02em;
  transition:background-color var(--t-fast) var(--ease);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-guide summary:hover,
.design-style-smart_network_blockchain_development_platform_3ld .sn-guide summary:focus-visible{background:oklch(0.72 0.12 206 / .09);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-guide summary::-webkit-details-marker{display:none;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-guide summary > span:nth-child(2){min-width:0;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-guide summary .sn-num{
  width:26px;height:26px;border-radius:var(--r-sm);display:grid;place-items:center;
  background:oklch(0.72 0.12 206 / .14);border:1px solid var(--line);
  color:var(--accent-2);font-size:var(--fs-xs);font-weight:900;flex:none;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-guide summary .sn-plus{
  color:var(--muted);font-weight:900;flex:none;
  transition:transform var(--t-base) var(--ease),color var(--t-fast) var(--ease);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-guide details[open] summary .sn-plus{transform:rotate(45deg);color:var(--accent);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-guide .sn-body{padding:0 var(--sp-4) var(--sp-4) calc(var(--sp-4) + 26px + var(--sp-3));min-width:0;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-guide .sn-body p{font-size:var(--fs-sm);color:var(--muted);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-guide .sn-body ul{display:grid;gap:var(--sp-2);margin-top:var(--sp-3);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-guide .sn-body li{
  font-size:var(--fs-sm);color:var(--muted);
  display:grid;grid-template-columns:auto minmax(0,1fr);gap:var(--sp-2);align-items:start;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-guide .sn-body li::before{content:"—";color:var(--primary);font-weight:900;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-guide .sn-body b{color:var(--text);font-weight:800;}

/* ---------- 客户评价 ---------- */
.design-style-smart_network_blockchain_development_platform_3ld .sn-quotes{display:grid;grid-template-columns:minmax(0,1fr);gap:var(--sp-4);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-quote{
  padding:var(--sp-4);border:1px solid var(--line);border-radius:var(--r-lg);
  background:oklch(0.19 0.04 206);box-shadow:var(--sh-1);
  display:flex;flex-direction:column;gap:var(--sp-3);min-width:0;
  transition:transform var(--t-fast) var(--ease),box-shadow var(--t-base) var(--ease),border-color var(--t-base) var(--ease);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-quote:hover{
  transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-quote blockquote{font-size:var(--fs-sm);color:var(--text);line-height:var(--lh-body);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-quote footer{
  display:flex;align-items:center;gap:var(--sp-3);border-top:1px solid var(--line-soft);padding-top:var(--sp-3);
  margin-top:auto;min-width:0;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-quote footer > div{min-width:0;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-avatar{
  width:32px;height:32px;flex:none;border-radius:var(--r-sm);display:grid;place-items:center;
  background:linear-gradient(140deg,oklch(0.72 0.12 206 / .3),oklch(0.78 0.14 46 / .2));
  border:1px solid var(--line);font-size:var(--fs-xs);font-weight:900;color:var(--text);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-quote footer b{display:block;font-size:var(--fs-sm);font-weight:900;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-quote footer span{display:block;font-size:var(--fs-xs);color:var(--muted);}

/* ---------- CTA 内嵌色带 ---------- */
.design-style-smart_network_blockchain_development_platform_3ld .sn-cta{
  position:relative;overflow:hidden;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(90deg,oklch(0.21 0.05 206),oklch(0.18 0.04 206));
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-cta::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--accent);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-cta-in{
  display:grid;grid-template-columns:minmax(0,1fr);gap:var(--sp-4);align-items:center;
  padding:var(--sp-6) 0;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-cta-in > *{min-width:0;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-cta p{color:var(--muted);font-size:var(--fs-sm);margin-top:var(--sp-2);max-width:60ch;}

/* ---------- 页脚 ---------- */
.design-style-smart_network_blockchain_development_platform_3ld .sn-foot{
  padding:var(--sp-6) 0 var(--sp-5);border-top:1px solid var(--line);
  background:oklch(0.135 0.028 206);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-foot-grid{
  display:grid;grid-template-columns:minmax(0,1fr);gap:var(--sp-5);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-foot-grid > div{min-width:0;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-foot h4{
  font-size:var(--fs-xs);letter-spacing:.16em;text-transform:uppercase;color:var(--primary);font-weight:900;
  margin-bottom:var(--sp-3);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-foot ul{display:grid;gap:var(--sp-2);}
.design-style-smart_network_blockchain_development_platform_3ld .sn-foot a{
  color:var(--muted);text-decoration:none;font-size:var(--fs-sm);
  transition:color var(--t-fast) var(--ease);
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-foot a:hover,
.design-style-smart_network_blockchain_development_platform_3ld .sn-foot a:focus-visible{color:var(--text);text-decoration:underline;text-underline-offset:3px;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-foot p{color:var(--muted);font-size:var(--fs-sm);max-width:46ch;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-foot-bar{
  margin-top:var(--sp-5);padding-top:var(--sp-4);border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:var(--sp-3);justify-content:space-between;
  font-size:var(--fs-xs);color:var(--muted);
}

/* ---------- 焦点态 ---------- */
.design-style-smart_network_blockchain_development_platform_3ld a:focus-visible,
.design-style-smart_network_blockchain_development_platform_3ld summary:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;border-radius:var(--r-sm);
}

/* ---------- 入场动效（纯 CSS，加载即播放，终态即静态） ---------- */
@keyframes sn-pop{
  0%{opacity:.001;transform:translateY(14px) scale(.965);}
  60%{opacity:1;}
  100%{opacity:1;transform:translateY(0) scale(1);}
}
@keyframes sn-pulse{
  0%,100%{box-shadow:0 0 0 3px oklch(0.78 0.14 46 / .15);}
  50%{box-shadow:0 0 0 5px oklch(0.78 0.14 46 / .08);}
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-anim{
  animation:sn-pop .62s var(--ease-out) both;
}
.design-style-smart_network_blockchain_development_platform_3ld .sn-d1{animation-delay:.06s;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-d2{animation-delay:.12s;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-d3{animation-delay:.18s;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-d4{animation-delay:.24s;}
.design-style-smart_network_blockchain_development_platform_3ld .sn-d5{animation-delay:.30s;}

/* ---------- 响应式 ---------- */
@media (min-width:640px){
  .design-style-smart_network_blockchain_development_platform_3ld .sn-metrics{grid-template-columns:repeat(4,minmax(0,1fr));}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-partners{grid-template-columns:repeat(3,minmax(0,1fr));}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-cards{grid-template-columns:repeat(2,minmax(0,1fr));}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-plans{grid-template-columns:repeat(3,minmax(0,1fr));}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-stats{grid-template-columns:repeat(4,minmax(0,1fr));}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-quotes{grid-template-columns:repeat(2,minmax(0,1fr));}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-cta-in{grid-template-columns:minmax(0,1fr) auto;}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (min-width:1024px){
  .design-style-smart_network_blockchain_development_platform_3ld .sn-shell{max-width:var(--container-lg);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-hero-grid{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);align-items:center;gap:var(--sp-6);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-hero-figure img{aspect-ratio:4/3;}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-feature{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:var(--sp-6);padding:var(--sp-5);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-cards{grid-template-columns:repeat(2,minmax(0,1fr));}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-foot-grid{grid-template-columns:repeat(4,minmax(0,1fr));}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-scenes{grid-auto-columns:minmax(0,1fr);overflow:visible;padding-bottom:0;}
}
@media (min-width:1600px){
  .design-style-smart_network_blockchain_development_platform_3ld .sn-shell{max-width:var(--container-xl);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-sec{padding:var(--sp-8) 0;}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-cards{grid-template-columns:repeat(4,minmax(0,1fr));}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-partners{grid-template-columns:repeat(6,minmax(0,1fr));}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-quotes{grid-template-columns:repeat(3,minmax(0,1fr));}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-stats{grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--sp-4);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-h1{font-size:clamp(3.2rem,2.3rem + 2.3vw,4.2rem);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-hero-grid{gap:var(--sp-7);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-feature{gap:var(--sp-7);padding:var(--sp-6);}
}
@media (max-width:1024px){
  .design-style-smart_network_blockchain_development_platform_3ld .sn-nav{width:100%;margin-left:0;justify-content:flex-start;}
}
@media (max-width:640px){
  .design-style-smart_network_blockchain_development_platform_3ld{--gutter:14px;}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-top .sn-shell{gap:var(--sp-3);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-cards{grid-template-columns:minmax(0,1fr);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-plans{grid-template-columns:minmax(0,1fr);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-quotes{grid-template-columns:minmax(0,1fr);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-partners{grid-template-columns:repeat(2,minmax(0,1fr));}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-guide .sn-body{padding-left:var(--sp-4);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-hero-tag{left:var(--sp-3);bottom:var(--sp-3);max-width:calc(100% - var(--sp-3) * 2);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-card-body{margin-top:calc(-1 * var(--sp-5));}
}
@media (max-width:380px){
  .design-style-smart_network_blockchain_development_platform_3ld{font-size:var(--fs-sm);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-shell{padding:0 var(--sp-3);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-note{font-size:calc(var(--fs-xs) - .01rem);letter-spacing:.03em;}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-top .sn-shell{gap:var(--sp-2);min-height:48px;}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-nav{gap:0;}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-nav a{padding:0 var(--sp-2);min-height:30px;font-size:var(--fs-xs);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-cta-mini{min-height:30px;padding:0 var(--sp-3);font-size:var(--fs-xs);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-metrics,
  .design-style-smart_network_blockchain_development_platform_3ld .sn-partners,
  .design-style-smart_network_blockchain_development_platform_3ld .sn-stats{grid-template-columns:minmax(0,1fr);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-sec,
  .design-style-smart_network_blockchain_development_platform_3ld .sn-sec--tight{padding:var(--sp-5) 0;}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-hero{padding:var(--sp-4) 0 var(--sp-5);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-tabbar a{padding:0 var(--sp-3);font-size:var(--fs-xs);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-btn{min-height:40px;padding:0 var(--sp-4);flex:1 1 auto;}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-scenes{grid-auto-columns:minmax(min(86%,260px),1fr);}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-guide summary{padding:var(--sp-3);}
}
@media (prefers-reduced-motion:reduce){
  .design-style-smart_network_blockchain_development_platform_3ld .sn-anim{animation:none;}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-note i{animation:none;}
  .design-style-smart_network_blockchain_development_platform_3ld *{transition-duration:.001ms !important;}
  .design-style-smart_network_blockchain_development_platform_3ld .sn-scenes{scroll-snap-type:none;}
}