.design-style-blockchain_application_development_professional_single_page_q20{
  --bg: oklch(0.15 0.03 48);
  --surface: oklch(0.21 0.045 48);
  --primary: oklch(0.72 0.14 48);
  --secondary: oklch(0.62 0.14 0);
  --accent: oklch(0.78 0.16 243);
  --accent-2: oklch(0.90 0.12 243);
  --text: oklch(0.94 0.02 48);
  --muted: oklch(0.62 0.03 48);
  --line: oklch(0.32 0.03 48);
  --line-soft: oklch(0.27 0.025 48);
  --container:1140px;--container-lg:1400px;--container-xl:1680px;--gutter:clamp(14px,2.2vw,30px);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;
  --sp-3h:10px;--sp-4h:20px;--sp-5h:28px;
  --r-sm:14px;--r-md:20px;--r-lg:28px;--r-pill:999px;
  --sh-1:0 1px 0 rgba(255,255,255,.05) inset,0 2px 8px rgba(0,0,0,.35);
  --sh-2:0 1px 0 rgba(255,255,255,.06) inset,0 12px 30px rgba(0,0,0,.45);
  --sh-3:0 1px 0 rgba(255,255,255,.08) inset,0 26px 64px rgba(0,0,0,.55);
  --fs-xs:clamp(.72rem,.7rem + .1vw,.78rem);
  --fs-sm:clamp(.82rem,.8rem + .15vw,.9rem);
  --fs-md:clamp(.95rem,.9rem + .25vw,1.06rem);
  --fs-lg:clamp(1.15rem,1.05rem + .5vw,1.4rem);
  --fs-xl:clamp(1.5rem,1.3rem + 1vw,2rem);
  --fs-2xl:clamp(1.9rem,1.5rem + 2vw,2.9rem);
  --fs-3xl:clamp(2.4rem,1.8rem + 3vw,3.6rem);
  --lh-tight:1.12;--lh-snug:1.32;--lh-body:1.62;
  --ease:cubic-bezier(.4,0,.2,1);--ease-out:cubic-bezier(.16,1,.3,1);
  --t-fast:.15s;--t-base:.25s;--t-slow:.45s;
  --mono:"SFMono-Regular","JetBrains Mono","Cascadia Code",ui-monospace,Menlo,Consolas,"Liberation Mono",monospace;
  background:var(--bg);
  color:var(--text);
  font-family:var(--mono);
  line-height:var(--lh-body);
  font-size:var(--fs-md);
  overflow-x:hidden;
  overflow-wrap:break-word;
  word-break:break-word;
  position:relative;
  background-image:radial-gradient(680px 420px at 12% -6%, oklch(0.72 0.14 48 / .10), transparent 62%),radial-gradient(560px 380px at 96% 8%, oklch(0.78 0.16 243 / .07), transparent 60%);
}
.design-style-blockchain_application_development_professional_single_page_q20 *,
.design-style-blockchain_application_development_professional_single_page_q20 *::before,
.design-style-blockchain_application_development_professional_single_page_q20 *::after{box-sizing:border-box;min-width:0;}
.design-style-blockchain_application_development_professional_single_page_q20 img{max-width:100%;height:auto;display:block;}
.design-style-blockchain_application_development_professional_single_page_q20 a{color:inherit;text-decoration:none;}
.design-style-blockchain_application_development_professional_single_page_q20 :focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:var(--r-sm);}

/* ---- 容器 ---- */
.design-style-blockchain_application_development_professional_single_page_q20 .bc-wrap{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--gutter);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-wrap--wide{max-width:var(--container-lg);}

/* ---- 顶部提示条 ---- */
.design-style-blockchain_application_development_professional_single_page_q20 .bc-notice{position:relative;z-index:60;background:oklch(0.13 0.028 48);border-bottom:1px solid var(--line);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-notice__in{display:flex;align-items:center;gap:var(--sp-3);padding:var(--sp-2) var(--gutter);max-width:var(--container-xl);margin-inline:auto;font-size:var(--fs-xs);letter-spacing:.06em;color:var(--muted);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-notice__dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px oklch(0.78 0.16 243 / .16);flex:none;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-notice__txt{color:var(--text);font-weight:600;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-notice__tag{margin-left:auto;color:var(--primary);border:1px solid var(--line);border-radius:var(--r-pill);padding:2px var(--sp-3);white-space:nowrap;}

/* ---- 导航（顶栏 + 斜切色带） ---- */
.design-style-blockchain_application_development_professional_single_page_q20 .bc-nav{position:sticky;top:0;z-index:50;background:oklch(0.16 0.03 48 / .88);-webkit-backdrop-filter:blur(12px) saturate(1.1);
backdrop-filter:blur(12px) saturate(1.1);border-bottom:1px solid var(--line);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-nav__in{display:flex;align-items:center;gap:var(--sp-5);padding:var(--sp-2) var(--gutter);max-width:var(--container-xl);margin-inline:auto;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-brand{display:flex;align-items:center;gap:var(--sp-3);font-weight:700;letter-spacing:.02em;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-brand__mark{width:32px;height:32px;border-radius:var(--r-sm);background:linear-gradient(135deg,var(--primary),var(--secondary));display:grid;place-items:center;color:oklch(0.16 0.03 48);font-size:var(--fs-sm);box-shadow:var(--sh-1);flex:none;transition:transform var(--t-base) var(--ease-out);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-brand:hover .bc-brand__mark{transform:rotate(-6deg) scale(1.04);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-brand__txt{display:flex;flex-direction:column;line-height:1.15;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-brand__txt b{font-size:var(--fs-sm);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-brand__txt span{font-size:var(--fs-xs);color:var(--muted);letter-spacing:.14em;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-nav__links{display:flex;gap:var(--sp-1);margin-left:auto;flex-wrap:wrap;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-nav__links a{font-size:var(--fs-xs);letter-spacing:.08em;color:var(--muted);padding:var(--sp-2) var(--sp-3);border-radius:var(--r-pill);transition:color var(--t-base) var(--ease),background var(--t-base) var(--ease);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-nav__links a:hover{color:var(--text);background:oklch(0.72 0.14 48 / .12);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-nav__cta{flex:none;font-size:var(--fs-xs);padding:var(--sp-2) var(--sp-4);border-radius:var(--r-pill);border:1px solid var(--accent);color:var(--accent-2);transition:background var(--t-base) var(--ease),color var(--t-base) var(--ease),transform var(--t-base) var(--ease-out),box-shadow var(--t-base) var(--ease);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-nav__cta:hover{background:oklch(0.78 0.16 243 / .16);transform:translateY(-1px);box-shadow:0 4px 14px oklch(0.78 0.16 243 / .18);}

/* ---- 斜切色带（创意签名） ---- */
.design-style-blockchain_application_development_professional_single_page_q20 .bc-slice{position:relative;overflow:hidden;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-slice::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:52px;background:var(--bg);clip-path:polygon(0 62%,100% 12%,100% 100%,0 100%);pointer-events:none;}

/* ---- Hero：网格拼图全景式 ---- */
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero{padding:var(--sp-7) 0 var(--sp-8);position:relative;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);grid-template-rows:auto auto;gap:var(--sp-3h);align-items:stretch;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__lead{grid-column:1;grid-row:1/3;display:flex;flex-direction:column;gap:var(--sp-5);padding:var(--sp-5h);border:1px solid var(--line);border-radius:var(--r-lg);background:linear-gradient(160deg,oklch(0.21 0.045 48),oklch(0.18 0.035 48));box-shadow:var(--sh-2);position:relative;overflow:hidden;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__lead::before{content:"";position:absolute;width:320px;height:320px;right:-120px;top:-140px;border-radius:46% 54% 62% 38%/48% 40% 60% 52%;background:radial-gradient(circle at 40% 40%,oklch(0.72 0.14 48 / .22),transparent 68%);filter:blur(6px);pointer-events:none;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-kicker{display:inline-flex;align-items:center;gap:var(--sp-2);font-size:var(--fs-xs);letter-spacing:.16em;color:var(--accent-2);text-transform:uppercase;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-kicker::before{content:"//";color:var(--primary);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero h1{margin:0;font-size:var(--fs-3xl);line-height:var(--lh-tight);letter-spacing:-.015em;font-weight:700;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero h1 em{font-style:normal;color:var(--primary);display:inline-block;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero h1 mark{background:none;color:var(--accent-2);position:relative;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero h1 mark::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:1px;background:var(--accent);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__desc{color:var(--muted);font-size:var(--fs-sm);max-width:46ch;margin:0;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__actions{display:flex;flex-wrap:wrap;gap:var(--sp-3);margin-top:auto;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-btn{display:inline-flex;align-items:center;gap:var(--sp-2);padding:var(--sp-3) var(--sp-5);border-radius:var(--r-pill);font-size:var(--fs-xs);letter-spacing:.08em;min-height:44px;transition:transform var(--t-base) var(--ease-out),box-shadow var(--t-base) var(--ease),background var(--t-base) var(--ease),border-color var(--t-base) var(--ease),color var(--t-base) var(--ease);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-btn--primary{background:var(--primary);color:oklch(0.16 0.03 48);font-weight:700;box-shadow:var(--sh-1);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-btn--primary:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-btn--primary:active{transform:translateY(0);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-btn--ghost{border:1px solid var(--line);color:var(--text);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-btn--ghost:hover{border-color:var(--accent);color:var(--accent-2);transform:translateY(-2px);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__fig{grid-column:2;grid-row:1;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2);aspect-ratio:16/10;position:relative;transition:box-shadow var(--t-slow) var(--ease),border-color var(--t-base) var(--ease);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__fig:hover{box-shadow:var(--sh-3);border-color:oklch(0.32 0.03 48 / 1.4);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__fig img{width:100%;height:100%;object-fit:cover;filter:saturate(.94) contrast(1.02);transition:transform var(--t-slow) var(--ease-out);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__fig:hover img{transform:scale(1.035);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__fig figcaption{position:absolute;left:0;right:0;bottom:0;padding:var(--sp-3) var(--sp-4);font-size:var(--fs-xs);color:var(--text);background:linear-gradient(to top,oklch(0.15 0.03 48 / .9),transparent);letter-spacing:.04em;overflow-wrap:break-word;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__stats{grid-column:2;grid-row:2;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--sp-2);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-mini{padding:var(--sp-4);border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:var(--sp-1);transition:transform var(--t-base) var(--ease-out),border-color var(--t-base) var(--ease),box-shadow var(--t-base) var(--ease);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-mini:hover{transform:translateY(-3px);border-color:var(--primary);box-shadow:var(--sh-2);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-mini b{font-size:var(--fs-lg);color:var(--accent-2);line-height:1.1;letter-spacing:-.01em;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-mini span{font-size:var(--fs-xs);color:var(--muted);line-height:1.4;}

/* ---- 通用区块 ---- */
.design-style-blockchain_application_development_professional_single_page_q20 .bc-sec{padding:var(--sp-6) 0;border-top:1px solid var(--line-soft);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-sec__head{display:flex;align-items:flex-end;gap:var(--sp-5h);flex-wrap:wrap;margin-bottom:var(--sp-5);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-sec__head h2{margin:0;font-size:var(--fs-xl);line-height:var(--lh-snug);letter-spacing:-.015em;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-sec__head p{margin:0;color:var(--muted);font-size:var(--fs-sm);max-width:52ch;overflow-wrap:break-word;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-sec__idx{margin-left:auto;font-size:var(--fs-xs);color:var(--primary);letter-spacing:.2em;border-left:1px solid var(--line);padding-left:var(--sp-4);white-space:nowrap;}

/* ---- 弧形/环形排布特性卡（4 个） ---- */
.design-style-blockchain_application_development_professional_single_page_q20 .bc-arc{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--sp-3);align-items:start;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-arc .bc-card{border:1px solid var(--line);border-radius:var(--r-lg);background:linear-gradient(180deg,var(--surface),oklch(0.185 0.035 48));box-shadow:var(--sh-1);padding:var(--sp-4h);transition:transform var(--t-slow) var(--ease-out),box-shadow var(--t-slow) var(--ease),border-color var(--t-base) var(--ease);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-arc .bc-card:nth-child(1){transform:translateY(22px);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-arc .bc-card:nth-child(2){transform:translateY(8px);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-arc .bc-card:nth-child(3){transform:translateY(0);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-arc .bc-card:nth-child(4){transform:translateY(15px);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-arc .bc-card:hover{transform:translateY(-6px);box-shadow:var(--sh-3);border-color:var(--accent);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-card__ico{width:38px;height:38px;border-radius:var(--r-md);display:grid;place-items:center;font-size:var(--fs-md);background:oklch(0.78 0.16 243 / .14);color:var(--accent-2);border:1px solid oklch(0.78 0.16 243 / .3);margin-bottom:var(--sp-3h);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-card h3{margin:0 0 var(--sp-2);font-size:var(--fs-md);line-height:var(--lh-snug);letter-spacing:-.01em;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-card p{margin:0;color:var(--muted);font-size:var(--fs-sm);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-card ul{margin:var(--sp-3) 0 0;padding:0;list-style:none;display:flex;flex-direction:column;gap:var(--sp-2);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-card li{font-size:var(--fs-xs);color:var(--text);display:flex;gap:var(--sp-2);line-height:1.5;overflow-wrap:break-word;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-card li::before{content:"›";color:var(--primary);flex:none;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-arc__note{margin-top:var(--sp-5);font-size:var(--fs-xs);color:var(--muted);border-top:1px dashed var(--line);padding-top:var(--sp-3h);overflow-wrap:break-word;}

/* ---- FAQ（纯 CSS details） ---- */
.design-style-blockchain_application_development_professional_single_page_q20 .bc-faq{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--sp-3);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-faq details{border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);box-shadow:var(--sh-1);overflow:hidden;transition:border-color var(--t-base) var(--ease),box-shadow var(--t-base) var(--ease);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-faq details[open]{border-color:var(--primary);box-shadow:var(--sh-2);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-faq summary{cursor:pointer;list-style:none;padding:var(--sp-4);font-size:var(--fs-sm);display:flex;gap:var(--sp-3);align-items:flex-start;transition:background var(--t-base) var(--ease),color var(--t-base) var(--ease);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-faq summary::-webkit-details-marker{display:none;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-faq summary:hover{background:oklch(0.72 0.14 48 / .07);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-faq summary::before{content:"?";flex:none;width:22px;height:22px;border-radius:var(--r-sm);display:grid;place-items:center;font-size:var(--fs-xs);background:oklch(0.78 0.16 243 / .16);color:var(--accent-2);transition:background var(--t-base) var(--ease),transform var(--t-base) var(--ease-out);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-faq details[open] summary::before{background:oklch(0.78 0.16 243 / .28);transform:scale(1.06);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-faq .bc-faq__a{margin:0;padding:var(--sp-3h) var(--sp-4) var(--sp-4) calc(var(--sp-4) + 34px);font-size:var(--fs-xs);color:var(--muted);border-top:1px solid var(--line-soft);overflow-wrap:break-word;}

/* ---- 动态/资讯 ---- */
.design-style-blockchain_application_development_professional_single_page_q20 .bc-news{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:var(--sp-3h);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-news__main{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--surface);box-shadow:var(--sh-2);display:flex;flex-direction:column;transition:border-color var(--t-base) var(--ease);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-news__main:hover{border-color:oklch(0.32 0.03 48 / 1.3);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-news__main figure{margin:0;aspect-ratio:16/9;overflow:hidden;position:relative;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-news__main figure img{width:100%;height:100%;object-fit:cover;transition:transform var(--t-slow) var(--ease-out);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-news__main:hover figure img{transform:scale(1.03);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-news__main .bc-news__body{padding:var(--sp-4) var(--sp-4h) var(--sp-4h);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-chip{display:inline-block;font-size:var(--fs-xs);letter-spacing:.08em;color:var(--primary);border:1px solid var(--line);border-radius:var(--r-pill);padding:2px var(--sp-3);margin-bottom:var(--sp-3);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-news__main h3{margin:0 0 var(--sp-2);font-size:var(--fs-lg);line-height:var(--lh-snug);letter-spacing:-.01em;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-news__main p{margin:0;color:var(--muted);font-size:var(--fs-sm);overflow-wrap:break-word;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-news__list{display:flex;flex-direction:column;gap:var(--sp-3);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-newsitem{display:grid;grid-template-columns:72px minmax(0,1fr);gap:var(--sp-3);align-items:center;padding:var(--sp-3);border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);box-shadow:var(--sh-1);transition:transform var(--t-base) var(--ease-out),border-color var(--t-base) var(--ease),box-shadow var(--t-base) var(--ease);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-newsitem:hover{transform:translateX(4px);border-color:var(--primary);box-shadow:var(--sh-2);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-newsitem img{width:72px;height:56px;object-fit:cover;border-radius:var(--r-sm);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-newsitem b{display:block;font-size:var(--fs-sm);line-height:1.4;overflow-wrap:break-word;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-newsitem span{font-size:var(--fs-xs);color:var(--muted);overflow-wrap:break-word;}

/* ---- 解决方案对比（表格） ---- */
.design-style-blockchain_application_development_professional_single_page_q20 .bc-tablewrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);box-shadow:var(--sh-1);}
.design-style-blockchain_application_development_professional_single_page_q20 table{width:100%;border-collapse:collapse;min-width:640px;}
.design-style-blockchain_application_development_professional_single_page_q20 th,
.design-style-blockchain_application_development_professional_single_page_q20 td{text-align:left;padding:var(--sp-3) var(--sp-4);font-size:var(--fs-sm);border-bottom:1px solid var(--line-soft);vertical-align:top;}
.design-style-blockchain_application_development_professional_single_page_q20 tbody tr:last-child th,
.design-style-blockchain_application_development_professional_single_page_q20 tbody tr:last-child td{border-bottom:none;}
.design-style-blockchain_application_development_professional_single_page_q20 thead th{font-size:var(--fs-xs);letter-spacing:.1em;color:var(--accent-2);background:oklch(0.24 0.05 48);position:sticky;top:0;}
.design-style-blockchain_application_development_professional_single_page_q20 tbody tr:hover{background:oklch(0.72 0.14 48 / .06);}
.design-style-blockchain_application_development_professional_single_page_q20 td b{color:var(--primary);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-badge{display:inline-block;font-size:var(--fs-xs);border-radius:var(--r-pill);padding:1px var(--sp-2);border:1px solid var(--line);color:var(--muted);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-badge--hot{color:var(--accent-2);border-color:oklch(0.78 0.16 243 / .45);background:oklch(0.78 0.16 243 / .1);}

/* ---- 关键数据条 ---- */
.design-style-blockchain_application_development_professional_single_page_q20 .bc-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--sp-3);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-metric{border:1px solid var(--line);border-radius:var(--r-md);padding:var(--sp-4);background:linear-gradient(170deg,oklch(0.22 0.045 48),oklch(0.18 0.035 48));box-shadow:var(--sh-1);position:relative;overflow:hidden;transition:transform var(--t-base) var(--ease-out),box-shadow var(--t-base) var(--ease),border-color var(--t-base) var(--ease);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-metric:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:oklch(0.32 0.03 48 / 1.3);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-metric::after{content:"";position:absolute;right:-30px;bottom:-36px;width:96px;height:96px;border-radius:44% 56% 58% 42%/52% 46% 54% 48%;background:radial-gradient(circle,oklch(0.72 0.14 48 / .2),transparent 70%);pointer-events:none;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-metric b{display:block;font-size:var(--fs-xl);line-height:1.05;color:var(--accent-2);letter-spacing:-.02em;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-metric span{font-size:var(--fs-xs);color:var(--muted);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-metric i{display:block;margin-top:var(--sp-2);height:2px;background:linear-gradient(90deg,var(--primary),transparent);border-radius:var(--r-pill);}

/* ---- 实用指导清单 ---- */
.design-style-blockchain_application_development_professional_single_page_q20 .bc-guide{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--sp-3);counter-reset:g;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-step{counter-increment:g;display:grid;grid-template-columns:42px minmax(0,1fr);gap:var(--sp-3);padding:var(--sp-4);border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);box-shadow:var(--sh-1);transition:transform var(--t-base) var(--ease-out),border-color var(--t-base) var(--ease),box-shadow var(--t-base) var(--ease);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-step:hover{transform:translateY(-3px);border-color:var(--accent);box-shadow:var(--sh-2);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-step::before{content:counter(g,decimal-leading-zero);font-size:var(--fs-sm);color:var(--primary);border:1px solid var(--line);border-radius:var(--r-sm);height:42px;display:grid;place-items:center;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-step h3{margin:0 0 var(--sp-1);font-size:var(--fs-sm);letter-spacing:-.005em;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-step p{margin:0;font-size:var(--fs-xs);color:var(--muted);overflow-wrap:break-word;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-step code{color:var(--accent-2);background:oklch(0.78 0.16 243 / .1);padding:0 4px;border-radius:6px;}

/* ---- 内嵌色带 CTA ---- */
.design-style-blockchain_application_development_professional_single_page_q20 .bc-cta{margin:var(--sp-6) 0;position:relative;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-cta__band{border:1px solid var(--line);border-radius:var(--r-lg);background:linear-gradient(120deg,oklch(0.24 0.055 48),oklch(0.19 0.04 48));box-shadow:var(--sh-2);padding:var(--sp-5h);display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);gap:var(--sp-5);align-items:center;position:relative;overflow:hidden;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-cta__band::before{content:"";position:absolute;inset:0;background:linear-gradient(105deg,transparent 46%,oklch(0.72 0.14 48 / .14) 46%,oklch(0.72 0.14 48 / .14) 62%,transparent 62%);pointer-events:none;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-cta h2{margin:0 0 var(--sp-2);font-size:var(--fs-xl);line-height:var(--lh-snug);letter-spacing:-.015em;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-cta p{margin:0;color:var(--muted);font-size:var(--fs-sm);overflow-wrap:break-word;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-cta__act{display:flex;flex-direction:column;gap:var(--sp-3);align-items:flex-start;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-cta__fig{margin:0;border-radius:var(--r-md);overflow:hidden;aspect-ratio:16/10;border:1px solid var(--line);width:100%;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-cta__fig img{width:100%;height:100%;object-fit:cover;transition:transform var(--t-slow) var(--ease-out);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-cta__fig:hover img{transform:scale(1.04);}

/* ---- 页脚 ---- */
.design-style-blockchain_application_development_professional_single_page_q20 .bc-foot{border-top:1px solid var(--line);padding:var(--sp-6) 0;background:oklch(0.135 0.028 48);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-foot__grid{display:grid;grid-template-columns:minmax(0,1.3fr) repeat(3,minmax(0,1fr));gap:var(--sp-5);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-foot h4{margin:0 0 var(--sp-3);font-size:var(--fs-xs);letter-spacing:.14em;color:var(--accent-2);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-foot ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:var(--sp-2);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-foot a{font-size:var(--fs-xs);color:var(--muted);transition:color var(--t-base) var(--ease);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-foot a:hover{color:var(--primary);}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-foot p{margin:0;font-size:var(--fs-xs);color:var(--muted);max-width:42ch;overflow-wrap:break-word;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-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);}

/* ---- 动效：交错延迟入场（纯 CSS，默认可见终态） ---- */
@keyframes bcRise{from{opacity:.001;transform:translateY(16px);}to{opacity:1;transform:translateY(0);}}
@keyframes bcFade{from{opacity:.001;}to{opacity:1;}}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__lead{animation:bcRise .6s var(--ease-out) both;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__fig{animation:bcRise .6s var(--ease-out) .08s both;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__stats .bc-mini:nth-child(1){animation:bcRise .55s var(--ease-out) .16s both;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__stats .bc-mini:nth-child(2){animation:bcRise .55s var(--ease-out) .22s both;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__stats .bc-mini:nth-child(3){animation:bcRise .55s var(--ease-out) .28s both;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-arc .bc-card{animation:bcFade .6s var(--ease-out) both;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-arc .bc-card:nth-child(1){animation-delay:.05s;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-arc .bc-card:nth-child(2){animation-delay:.12s;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-arc .bc-card:nth-child(3){animation-delay:.19s;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-arc .bc-card:nth-child(4){animation-delay:.26s;}

/* ---- scroll-snap 整屏分段吸附（自然融入） ---- */
.design-style-blockchain_application_development_professional_single_page_q20 .bc-snap{scroll-snap-type:y proximity;}
.design-style-blockchain_application_development_professional_single_page_q20 .bc-snap > *{scroll-snap-align:start;}

/* ---- 响应式 ---- */
@media (min-width:1600px){
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-wrap{max-width:var(--container-lg);}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-wrap--wide{max-width:var(--container-xl);}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-arc{grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--sp-4);}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-metrics{grid-template-columns:repeat(4,minmax(0,1fr));}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-faq{grid-template-columns:repeat(2,minmax(0,1fr));}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-guide{grid-template-columns:repeat(3,minmax(0,1fr));}
}
@media (max-width:1024px){
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-hero{padding:var(--sp-6) 0;}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__grid{grid-template-columns:minmax(0,1fr);}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__lead{grid-column:1;grid-row:auto;}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__fig{grid-column:1;grid-row:auto;}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__stats{grid-column:1;grid-row:auto;}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-arc{grid-template-columns:repeat(2,minmax(0,1fr));}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-arc .bc-card:nth-child(n){transform:none;}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-news{grid-template-columns:minmax(0,1fr);}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-cta__band{grid-template-columns:minmax(0,1fr);}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-foot__grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:640px){
  .design-style-blockchain_application_development_professional_single_page_q20{--fs-3xl:clamp(1.9rem,1.5rem + 5vw,2.4rem);}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-nav__links{display:none;}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-nav__cta{margin-left:auto;}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--sp-2);}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-arc{grid-template-columns:minmax(0,1fr);}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-faq{grid-template-columns:minmax(0,1fr);}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-guide{grid-template-columns:minmax(0,1fr);}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-metrics{grid-template-columns:repeat(2,minmax(0,1fr));}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-sec{padding:var(--sp-5) 0;}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-sec__idx{display:none;}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-cta__band{padding:var(--sp-5);}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-foot__grid{grid-template-columns:minmax(0,1fr);}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-brand__txt span{display:none;}
}
@media (max-width:380px){
  .design-style-blockchain_application_development_professional_single_page_q20{--gutter:12px;}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-notice__tag{display:none;}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__stats{grid-template-columns:minmax(0,1fr);}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-metrics{grid-template-columns:minmax(0,1fr);}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-hero__lead{padding:var(--sp-4);}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-newsitem{grid-template-columns:56px minmax(0,1fr);}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-newsitem img{width:56px;height:48px;}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-sec__head{gap:var(--sp-3);}
}
@media (prefers-reduced-motion:reduce){
  .design-style-blockchain_application_development_professional_single_page_q20 *,
  .design-style-blockchain_application_development_professional_single_page_q20 *::before,
  .design-style-blockchain_application_development_professional_single_page_q20 *::after{animation:none !important;transition:none !important;}
  .design-style-blockchain_application_development_professional_single_page_q20 .bc-snap{scroll-snap-type:none;}
}