@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@500;700;900&family=Share+Tech+Mono&family=ZCOOL+QingKe+HuangYou&display=swap');
  /* ============ 基础变量 ============ */
  :root {
    --bg: #060609;
    --bg2: #0c0c14;
    --fg: #e8e8f0;
    --dim: #8a8a9e;
    --acc: #00ffc8;      /* 荧光青 */
    --acc2: #7b5cff;     /* 电光紫 */
    --acc3: #ff3d81;     /* 霓虹粉 */
    --mono: 'Share Tech Mono', 'JetBrains Mono', 'Cascadia Code', Consolas, monospace;
    --sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --disp: 'Orbitron', 'ZCOOL QingKe HuangYou', 'PingFang SC', sans-serif;
    --disp-cn: 'ZCOOL QingKe HuangYou', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    background: var(--bg);
    color: var(--fg);
    font-family: var(--sans);
    overflow-x: hidden;
    cursor: none;
  }
  ::selection { background: var(--acc); color: #000; }

  /* ============ 自定义光标 ============ */
  #cursor {
    position: fixed; top: 0; left: 0; z-index: 9999;
    width: 12px; height: 12px; border-radius: 50%;
    background: var(--acc);
    pointer-events: none;
    mix-blend-mode: difference;
    transition: width .25s cubic-bezier(.2,.9,.3,1.4), height .25s cubic-bezier(.2,.9,.3,1.4);
    transform: translate(-50%,-50%);
  }
  #cursor.hover { width: 48px; height: 48px; background: #fff; }
  #cursor-ring {
    position: fixed; top: 0; left: 0; z-index: 9998;
    width: 36px; height: 36px; border-radius: 50%;
    border: 1px solid rgba(0,255,200,.5);
    pointer-events: none;
    transform: translate(-50%,-50%);
  }

  /* ============ 3D 流体画布 ============ */
  #fluid-canvas {
    position: fixed; inset: 0; z-index: 0;
    width: 100vw; height: 100vh;
  }

  /* ============ 噪点叠加 ============ */
  body::after {
    content: ''; position: fixed; inset: 0; z-index: 2;
    pointer-events: none; opacity: .05;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  }

  main { position: relative; z-index: 3; }

  /* ============ 导航 ============ */
  nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    display: flex; justify-content: space-between; align-items: center;
    padding: 22px 48px;
    backdrop-filter: blur(12px);
    background: linear-gradient(to bottom, rgba(6,6,9,.7), transparent);
  }
  .logo { display: flex; align-items: center; gap: 11px; }
  .logo-mark { width: 34px; height: 34px; flex: none; color: var(--acc);
    filter: drop-shadow(0 0 8px rgba(0,255,200,.45)); }
  .logo-mark .trace path { stroke-dasharray: 130; stroke-dashoffset: 130;
    animation: logoDraw 1.5s cubic-bezier(.16,1,.3,1) forwards; }
  .logo-mark .trace path:nth-child(2) { animation-delay: .22s; }
  .logo-mark .trace path:nth-child(3) { animation-delay: .44s; }
  .logo-mark .pad circle { opacity: 0; animation: logoPad .4s ease forwards; }
  .logo-mark .pad circle:nth-child(1) { animation-delay: 1.0s; }
  .logo-mark .pad circle:nth-child(2) { animation-delay: 1.2s; }
  .logo-mark .pad circle:nth-child(3) { animation-delay: 1.4s; }
  @keyframes logoDraw { to { stroke-dashoffset: 0; } }
  @keyframes logoPad { to { opacity: 1; transform: scale(1); } }
  .logo:hover .logo-mark { animation: spinPulse 1.2s cubic-bezier(.5,0,.3,1); }
  @keyframes spinPulse { 50% { transform: rotate(8deg) scale(1.08); } }
  .logo-text { font-family: 'Orbitron', var(--mono); font-weight: 900;
    letter-spacing: 3px; font-size: 18px; animation: flicker 6s linear infinite; }
  .logo-text b { color: var(--acc); text-shadow: 0 0 12px var(--acc); }
  @keyframes flicker {
    0%, 91%, 94%, 97%, 100% { opacity: 1; }
    92%, 95% { opacity: .35; }
    93%, 96% { opacity: .8; }
  }
  .nav-links { display: flex; gap: 36px; }
  .nav-links a {
    color: var(--dim); text-decoration: none; font-family: var(--mono);
    font-size: 13px; letter-spacing: 1px; position: relative;
    transition: color .3s;
  }
  .nav-links a::before {
    content: '>'; position: absolute; left: -14px; opacity: 0;
    color: var(--acc); transition: opacity .3s, transform .3s;
    transform: translateX(-6px);
  }
  .nav-links a:hover { color: var(--fg); }
  .nav-links a:hover::before { opacity: 1; transform: translateX(0); }

  /* ============ Hero ============ */
  .hero {
    min-height: 100vh;
    display: flex; flex-direction: column; justify-content: center;
    padding: 0 48px; position: relative;
  }
  .hero-tag {
    font-family: var(--mono); color: var(--acc); font-size: 14px;
    letter-spacing: 4px; margin-bottom: 24px;
    opacity: 0; animation: rise 1.2s cubic-bezier(.16,1,.3,1) .2s forwards;
  }
  .hero h1 {
    font-family: var(--disp-cn);
    font-size: clamp(48px, 9vw, 130px);
    line-height: 1.02; font-weight: 400; letter-spacing: 2px;
    max-width: 1100px;
  }
  /* 第一行：镂空描边字 */
  .hero h1 .hollow {
    color: transparent;
    -webkit-text-stroke: 2px rgba(232,232,240,.85);
    text-stroke: 2px rgba(232,232,240,.85);
  }
  /* RGB 故障毛刺 */
  .glitch { position: relative; display: inline-block; }
  .glitch::before, .glitch::after {
    content: attr(data-text);
    position: absolute; left: 0; top: 0; width: 100%;
    background: inherit; -webkit-background-clip: text; background-clip: text;
    overflow: hidden; pointer-events: none;
  }
  .glitch::before {
    color: var(--acc3); background: none; -webkit-text-fill-color: var(--acc3);
    z-index: -1; animation: glitchA 3.2s steps(1) infinite;
  }
  .glitch::after {
    color: var(--acc); background: none; -webkit-text-fill-color: var(--acc);
    z-index: -2; animation: glitchB 2.7s steps(1) infinite;
  }
  @keyframes glitchA {
    0%, 86%, 100% { clip-path: inset(0 0 100% 0); transform: none; opacity: 0; }
    87% { clip-path: inset(12% 0 58% 0); transform: translate(-7px, 2px); opacity: .9; }
    89% { clip-path: inset(62% 0 8% 0);  transform: translate(6px, -2px); opacity: .9; }
    91% { clip-path: inset(35% 0 40% 0); transform: translate(-4px, 0);   opacity: .9; }
    93% { clip-path: inset(0 0 100% 0);  transform: none; opacity: 0; }
  }
  @keyframes glitchB {
    0%, 78%, 100% { clip-path: inset(100% 0 0 0); transform: none; opacity: 0; }
    79% { clip-path: inset(70% 0 6% 0);  transform: translate(8px, -3px); opacity: .85; }
    82% { clip-path: inset(8% 0 75% 0);  transform: translate(-6px, 3px); opacity: .85; }
    85% { clip-path: inset(45% 0 30% 0); transform: translate(5px, 1px);  opacity: .85; }
    88% { clip-path: inset(100% 0 0 0);  transform: none; opacity: 0; }
  }
  .hero h1 .line { display: block; overflow: hidden; }
  .hero h1 .line span {
    display: inline-block; transform: translateY(110%);
    animation: rise 1.4s cubic-bezier(.16,1,.3,1) forwards;
  }
  .hero h1 .line:nth-child(1) span { animation-delay: .35s; }
  .hero h1 .line:nth-child(2) span { animation-delay: .5s; }
  .hero h1 .grad {
    background: linear-gradient(120deg, var(--acc), var(--acc2) 55%, var(--acc3));
    -webkit-background-clip: text; background-clip: text; color: transparent;
  }
  .hero p {
    margin-top: 32px; max-width: 520px; color: var(--dim);
    font-size: 17px; line-height: 1.8;
    opacity: 0; animation: rise 1.2s cubic-bezier(.16,1,.3,1) .8s forwards;
  }
  .hero-meta {
    position: absolute; bottom: 42px; left: 48px; right: 48px;
    display: flex; justify-content: space-between; align-items: center;
    font-family: var(--mono); font-size: 12px; color: var(--dim);
    opacity: 0; animation: rise 1s ease 1.2s forwards;
  }
  .scroll-hint { display: flex; align-items: center; gap: 10px; }
  .scroll-hint .bar {
    width: 1px; height: 40px; background: var(--dim); position: relative; overflow: hidden;
  }
  .scroll-hint .bar::after {
    content: ''; position: absolute; inset: 0; background: var(--acc);
    animation: scrollbar 2s cubic-bezier(.7,0,.3,1) infinite;
  }
  @keyframes scrollbar { 0% { transform: translateY(-100%);} 60%,100% { transform: translateY(100%);} }
  @keyframes rise { from { opacity: 0; transform: translateY(60px);} to { opacity: 1; transform: translateY(0);} }

  /* ============ 区块通用 ============ */
  section { padding: 140px 48px; max-width: 1400px; margin: 0 auto; }
  .sec-head { display: flex; align-items: baseline; gap: 24px; margin-bottom: 64px; }
  .sec-head .num { font-family: 'Orbitron', var(--mono); color: var(--acc); font-size: 14px; }
  .sec-head h2 {
    font-family: var(--disp-cn);
    font-size: clamp(32px, 5vw, 64px); font-weight: 400; letter-spacing: 3px;
    color: transparent;
    -webkit-text-stroke: 1.5px rgba(232,232,240,.7);
    background: linear-gradient(120deg, var(--acc), var(--acc2) 60%, var(--acc3));
    -webkit-background-clip: text; background-clip: text;
    background-size: 0% 100%; background-repeat: no-repeat;
    transition: background-size .9s cubic-bezier(.16,1,.3,1), -webkit-text-stroke-color .6s;
  }
  .sec-head:hover h2, .sec-head.lit h2 {
    background-size: 100% 100%;
    -webkit-text-stroke-color: transparent;
  }
  .sec-head .rule { flex: 1; height: 1px; background: linear-gradient(90deg, var(--acc2), transparent); }

  /* ============ 产品网格（非对称） ============ */
  .grid {
    display: grid; gap: 28px;
    grid-template-columns: repeat(6, 1fr);
  }
  .card {
    grid-column: span 2;
    background: linear-gradient(160deg, rgba(255,255,255,.04), rgba(255,255,255,.01));
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 18px; padding: 32px;
    position: relative; overflow: hidden;
    transition: border-color .4s, transform .1s linear;
    opacity: 0; transform: translateY(80px) rotate(1.5deg);
  }
  .card.big { grid-column: span 3; }
  .card.wide { grid-column: span 4; }
  .card.in { animation: cardIn 1.1s cubic-bezier(.16,1,.3,1) forwards; }
  @keyframes cardIn { to { opacity: 1; transform: translateY(0) rotate(0);} }
  .card::before {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(600px circle at var(--mx,50%) var(--my,50%),
                rgba(0,255,200,.10), transparent 40%);
    opacity: 0; transition: opacity .4s; pointer-events: none;
  }
  .card:hover::before { opacity: 1; }
  .card:hover { border-color: rgba(0,255,200,.35); }
  .card .icon { font-size: 40px; margin-bottom: 20px; display: block;
    filter: drop-shadow(0 0 14px rgba(0,255,200,.4)); }
  .card h3 { font-family: var(--disp-cn); font-size: 24px; font-weight: 400;
    letter-spacing: 1.5px; margin-bottom: 6px; transition: text-shadow .4s; }
  .card:hover h3 { text-shadow: 0 0 18px rgba(0,255,200,.55); }
  .card .chip {
    display: inline-block; font-family: var(--mono); font-size: 11px;
    color: var(--acc2); border: 1px solid rgba(123,92,255,.4);
    padding: 3px 10px; border-radius: 99px; margin-bottom: 16px;
  }
  .card p { color: var(--dim); font-size: 14px; line-height: 1.7; }
  .card .meta {
    margin-top: 22px; display: flex; justify-content: space-between;
    font-family: var(--mono); font-size: 12px; color: var(--dim);
  }
  .card .meta .stat { color: var(--acc); }
  .card .wiki-link {
    margin-top: 18px; display: inline-flex; align-items: center; gap: 8px;
    color: var(--fg); font-family: var(--mono); font-size: 13px;
    text-decoration: none; border-bottom: 1px dashed rgba(0,255,200,.4);
    padding-bottom: 2px; cursor: none;
  }
  .card .wiki-link:hover { color: var(--acc); }

  /* ============ Wiki 终端区 ============ */
  .wiki-shell {
    background: var(--bg2);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 16px; overflow: hidden;
    box-shadow: 0 40px 120px rgba(123,92,255,.15);
    opacity: 0; transform: translateY(80px);
  }
  .wiki-shell.in { animation: cardIn 1.2s cubic-bezier(.16,1,.3,1) forwards; }
  .wiki-bar {
    display: flex; align-items: center; gap: 8px;
    padding: 14px 20px; background: rgba(255,255,255,.04);
    border-bottom: 1px solid rgba(255,255,255,.07);
    font-family: var(--mono); font-size: 12px; color: var(--dim);
  }
  .wiki-bar .dot { width: 11px; height: 11px; border-radius: 50%; }
  .wiki-bar .dot:nth-child(1){ background:#ff5f57; } .wiki-bar .dot:nth-child(2){ background:#febc2e; } .wiki-bar .dot:nth-child(3){ background:#28c840; }
  .wiki-bar .title { margin-left: 14px; }
  .wiki-body { display: grid; grid-template-columns: 240px 1fr; min-height: 420px; }
  .wiki-side {
    border-right: 1px solid rgba(255,255,255,.07); padding: 24px 0;
    font-family: var(--mono); font-size: 13px;
  }
  .wiki-side button {
    display: block; width: 100%; text-align: left;
    background: none; border: none; color: var(--dim);
    padding: 11px 24px; font: inherit; cursor: none;
    border-left: 2px solid transparent;
    transition: all .25s;
  }
  .wiki-side button:hover { color: var(--fg); background: rgba(255,255,255,.03); }
  .wiki-side button.active {
    color: var(--acc); border-left-color: var(--acc);
    background: linear-gradient(90deg, rgba(0,255,200,.08), transparent);
  }
  .wiki-content { padding: 36px 44px; font-size: 15px; line-height: 1.9; }
  .wiki-content h4 { font-family: var(--disp-cn); font-size: 26px; font-weight: 400;
    letter-spacing: 1.5px; margin-bottom: 8px; }
  .wiki-content .path { font-family: var(--mono); font-size: 12px; color: var(--acc2); margin-bottom: 24px; }
  .wiki-content p { color: var(--dim); margin-bottom: 16px; }
  .wiki-content code {
    font-family: var(--mono); font-size: 13px;
    background: rgba(0,255,200,.08); color: var(--acc);
    padding: 2px 8px; border-radius: 6px;
  }
  .wiki-content pre {
    background: #050508; border: 1px solid rgba(255,255,255,.08);
    border-radius: 10px; padding: 18px 22px; overflow-x: auto;
    font-family: var(--mono); font-size: 13px; line-height: 1.7;
    color: #b8ffe9; margin-top: 8px;
  }
  .wiki-pane { display: none; }
  .wiki-pane.show { display: block; animation: fadeSlide .5s cubic-bezier(.16,1,.3,1); }
  @keyframes fadeSlide { from { opacity: 0; transform: translateX(24px);} to { opacity: 1; transform: translateX(0);} }

  /* ============ 跑马灯 ============ */
  .marquee {
    overflow: hidden; padding: 60px 0; border-top: 1px solid rgba(255,255,255,.06);
    border-bottom: 1px solid rgba(255,255,255,.06);
  }
  .marquee-track {
    display: flex; gap: 64px; width: max-content;
    animation: scrollX 28s linear infinite;
    font-family: 'Orbitron', var(--mono); font-size: 30px; font-weight: 700;
    color: transparent; -webkit-text-stroke: 1px rgba(255,255,255,.18);
    white-space: nowrap;
  }
  .marquee-track em { font-style: normal; color: var(--acc); opacity: .5; }
  @keyframes scrollX { to { transform: translateX(-50%); } }

  /* ============ 页脚 ============ */
  footer {
    padding: 80px 48px 48px; text-align: center;
    font-family: var(--mono); font-size: 13px; color: var(--dim);
  }
  footer .big {
    font-size: clamp(40px, 7vw, 96px); font-weight: 900; color: var(--fg);
    letter-spacing: 1px; margin-bottom: 24px; font-family: 'Orbitron', var(--sans);
    text-transform: uppercase;
  }
  footer .big span {
    color: var(--acc);
    text-shadow: 0 0 24px rgba(0,255,200,.6), 0 0 80px rgba(0,255,200,.3);
    animation: flicker 7s linear infinite;
  }

  @media (max-width: 900px) {
    .card, .card.big, .card.wide { grid-column: span 6; }
    .wiki-body { grid-template-columns: 1fr; }
    .wiki-side { display: flex; overflow-x: auto; border-right: none; border-bottom: 1px solid rgba(255,255,255,.07); }
    body { cursor: auto; }
    #cursor, #cursor-ring { display: none; }
    nav { padding: 18px 24px; } .hero, section { padding-left: 24px; padding-right: 24px; }
  }
/* ============ 产品详情页 ============ */
.breadcrumb { font-family: var(--mono); font-size: 13px; color: var(--dim); margin-bottom: 32px; }
.breadcrumb a { color: var(--acc); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }

.product-top { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; margin-bottom: 72px; }
.product-media {
  position: relative; border: 1px solid rgba(255,255,255,.1); border-radius: 18px;
  background: radial-gradient(circle at 50% 40%, rgba(0,255,200,.06), transparent 70%);
  padding: 24px; aspect-ratio: 1/1; display: flex; align-items: center; justify-content: center;
  opacity: 0; transform: translateY(40px); animation: cardIn 1s cubic-bezier(.16,1,.3,1) .1s forwards;
}
.product-media img { width: 100%; height: 100%; object-fit: contain; border-radius: 10px; }
.product-media .ph { text-align: center; color: var(--dim); font-family: var(--mono); font-size: 13px; line-height: 2.1; }
.product-media .ph .big { font-size: 40px; display:block; margin-bottom: 10px; filter: drop-shadow(0 0 14px rgba(0,255,200,.4)); }
.product-media .corner { position: absolute; width: 22px; height: 22px; border: 2px solid var(--acc); opacity: .55; }
.corner.tl{top:14px;left:14px;border-right:0;border-bottom:0} .corner.tr{top:14px;right:14px;border-left:0;border-bottom:0}
.corner.bl{bottom:14px;left:14px;border-right:0;border-top:0} .corner.br{bottom:14px;right:14px;border-left:0;border-top:0}

.product-info h1 { font-family: var(--disp-cn); font-size: clamp(30px,4vw,50px); font-weight:400; letter-spacing:2px; margin: 14px 0 10px; }
.product-info .sub { color: var(--dim); font-size: 16px; line-height:1.85; }
.product-info .quick { display:grid; grid-template-columns: repeat(2,1fr); gap:14px; margin-top: 28px; }
.quick .q { border:1px solid rgba(255,255,255,.08); border-radius:12px; padding:14px 16px; background: rgba(255,255,255,.02); }
.quick .q .k { font-family:var(--mono); font-size:11px; color:var(--dim); letter-spacing:1px; }
.quick .q .v { font-family:var(--disp); font-size:17px; color:var(--acc); margin-top:5px; }

.product-body { display:grid; grid-template-columns: 1.25fr 1fr; gap:52px; align-items:start; }

.spec-table { width:100%; border-collapse:collapse; font-size:14px; }
.spec-table td { padding:13px 0; border-bottom:1px solid rgba(255,255,255,.06); color:var(--fg); vertical-align:top; }
.spec-table td:first-child { color:var(--dim); width:36%; font-family:var(--mono); font-size:13px; }

.dl-card { border:1px solid rgba(255,255,255,.1); border-radius:14px; padding:22px; margin-bottom:18px; transition:border-color .3s; }
.dl-card:hover { border-color: rgba(0,255,200,.35); }
.dl-card .dl-head { display:flex; align-items:center; gap:12px; margin-bottom:10px; }
.dl-card .dl-icon { font-size:24px; }
.dl-card h4 { font-family:var(--disp-cn); font-size:18px; font-weight:400; letter-spacing:1px; }
.dl-card p { color:var(--dim); font-size:13px; line-height:1.7; margin-bottom:14px; }
.dl-btn { display:inline-flex; align-items:center; gap:8px; font-family:var(--mono); font-size:13px;
  padding:9px 18px; border-radius:99px; text-decoration:none; transition:all .25s; }
.dl-btn.ready { background:var(--acc); color:#000; }
.dl-btn.ready:hover { box-shadow:0 0 20px rgba(0,255,200,.5); transform:translateY(-2px); }
.dl-btn.soon { border:1px dashed rgba(255,255,255,.25); color:var(--dim); }

.feat-list { list-style:none; }
.feat-list li { padding:11px 0 11px 26px; position:relative; color:var(--dim); font-size:14px; line-height:1.7; border-bottom:1px solid rgba(255,255,255,.05); }
.feat-list li::before { content:'\25B8'; position:absolute; left:4px; color:var(--acc); }
.feat-list li b { color:var(--fg); font-weight:500; }

.sub-head { font-family:var(--disp-cn); font-size:23px; font-weight:400; letter-spacing:2px; margin:0 0 20px; display:flex; align-items:center; gap:14px; }
.sub-head::after { content:''; flex:1; height:1px; background:linear-gradient(90deg,var(--acc2),transparent); }
.block { margin-bottom:58px; }

@media(max-width:900px){ .product-top,.product-body{grid-template-columns:1fr; gap:32px} }
/* ============ 注释图亮色展示框 ============ */
.annot-frame { background:#eef2f7; border:1px solid rgba(0,255,200,.3); border-radius:16px;
  padding:16px; box-shadow:0 0 50px rgba(0,255,200,.10); margin-top:4px; }
.annot-frame img { width:100%; display:block; border-radius:8px; }
.annot-frame .ph { text-align:center; color:#667; font-family:var(--mono); padding:60px 0; }
/* ============ 产品页代码块/双屏对比 ============ */
.block > p { color:var(--dim); font-size:14px; line-height:1.8; margin-bottom:12px; }
.block pre { background:#050508; border:1px solid rgba(255,255,255,.08); border-radius:10px;
  padding:16px 18px; font-family:var(--mono); font-size:13px; line-height:1.8; color:#b8ffe9; overflow-x:auto; margin:10px 0; }
.block :not(pre) > code { font-family:var(--mono); font-size:13px; background:rgba(0,255,200,.08);
  color:var(--acc); padding:2px 7px; border-radius:5px; }
.panel-cmp { display:grid; grid-template-columns:1fr 1fr; gap:12px; margin:14px 0; }
.panel-cmp .pc { border:1px solid rgba(255,255,255,.08); border-radius:12px; padding:14px; background:rgba(255,255,255,.02); }
.panel-cmp .pc .t { font-family:var(--disp-cn); font-size:17px; color:var(--acc); margin-bottom:6px; }
.panel-cmp .pc .d { font-family:var(--mono); font-size:12px; color:var(--dim); line-height:1.7; }
.dl-card .sz { font-family:var(--mono); font-size:11px; color:var(--dim); margin-left:8px; }
/* ============ 主页产品卡（整卡可点 + 产品图） ============ */
.card { text-decoration: none; color: inherit; display: block; }
.product-card { display: grid; grid-template-columns: 300px 1fr; gap: 40px; align-items: center; }
.pc-img { position: relative; aspect-ratio: 1/1; display: flex; align-items: center; justify-content: center;
  background: radial-gradient(circle at 50% 45%, rgba(0,255,200,.12), transparent 70%); border-radius: 16px; }
.pc-img img { width: 94%; height: 94%; object-fit: contain;
  filter: drop-shadow(0 10px 34px rgba(0,0,0,.55)); transition: transform .55s cubic-bezier(.16,1,.3,1); }
.card:hover .pc-img img { transform: scale(1.06) rotate(-4deg); }
.pc-body .wiki-link { display: inline-block; margin-top: 18px; }
@media (max-width: 760px){ .product-card { grid-template-columns: 1fr; gap: 20px; } }
/* ============ 下载分组 ============ */
.dl-group { margin-bottom: 24px; }
.dl-group-title { font-family: var(--mono); font-size: 12px; letter-spacing: 1px; color: var(--acc);
  padding-bottom: 10px; margin-bottom: 14px; border-bottom: 1px solid rgba(0,255,200,.18); }
/* ============ 下载列表框（紧凑，省宽度） ============ */
.dl-box { border: 1px solid rgba(255,255,255,.1); border-radius: 14px; overflow: hidden;
  background: linear-gradient(160deg, rgba(255,255,255,.035), rgba(255,255,255,.01)); margin-top: 4px; }
.dl-box-title { font-family: var(--mono); font-size: 11px; letter-spacing: 1px; color: var(--acc);
  padding: 13px 16px 7px; background: rgba(0,255,200,.04); }
.dl-row { display: flex; align-items: center; gap: 11px; padding: 11px 16px; text-decoration: none;
  color: var(--fg); transition: background .2s; border-top: 1px solid rgba(255,255,255,.045); }
.dl-row-ic { font-size: 17px; flex: none; }
.dl-row-name { flex: 1; font-size: 13.5px; }
.dl-row-sz { font-family: var(--mono); font-size: 11px; color: var(--dim); }
.dl-row-go { color: var(--acc); font-family: var(--mono); font-size: 14px; flex: none; transition: transform .2s; }
.dl-row:hover { background: rgba(0,255,200,.08); }
.dl-row:hover .dl-row-go { transform: translateY(2px); }
/* ============ 固件功能演示 ============ */
.fw-stage { display:grid; grid-template-columns:300px 1fr; gap:36px; align-items:center; margin:10px 0 24px; }
.fw-screen { position:relative; aspect-ratio:1/1; }
.fw-screen::before { content:''; position:absolute; inset:-6%; border-radius:50%;
  background:radial-gradient(circle,rgba(0,255,200,.12),transparent 70%); }
.fw-img { position:absolute; inset:0; width:100%; height:100%; object-fit:contain; border-radius:50%;
  opacity:0; transform:scale(.94); transition:opacity .5s cubic-bezier(.16,1,.3,1), transform .5s cubic-bezier(.16,1,.3,1); }
.fw-img.active { opacity:1; transform:scale(1); }
.fw-info { position:relative; min-height:150px; }
.fw-pane { position:absolute; inset:0; opacity:0; transform:translateY(12px); transition:.5s cubic-bezier(.16,1,.3,1); pointer-events:none; }
.fw-pane.active { opacity:1; transform:none; pointer-events:auto; position:relative; }
.fw-pane h3 { font-family:var(--disp-cn); font-size:22px; font-weight:400; letter-spacing:1px; margin-bottom:10px; }
.fw-pane p { color:var(--dim); font-size:14px; line-height:1.85; }
.fw-tabs { display:flex; gap:12px; justify-content:center; flex-wrap:wrap; }
.fw-tab { font-family:var(--mono); font-size:13px; padding:10px 20px; border-radius:99px;
  border:1px solid rgba(255,255,255,.12); background:rgba(255,255,255,.02); color:var(--dim);
  transition:.25s; display:inline-flex; align-items:center; gap:8px; }
.fw-tab.active { border-color:var(--c); color:var(--c);
  box-shadow:0 0 18px color-mix(in srgb, var(--c) 32%, transparent);
  background:color-mix(in srgb, var(--c) 9%, transparent); }
.fw-hint { text-align:center; font-family:var(--mono); font-size:12px; color:var(--dim); margin-top:16px; }
@media(max-width:760px){ .fw-stage{grid-template-columns:1fr; gap:18px} }