/* ============================================================
   帧速大师 · FRAME MASTER · SEO ARTICLE EDITION
   与主站 index.html 同源的全息电竞控制台美学 · 长文阅读适配
   ============================================================ */
:root {
  --bg:       #030305;
  --panel:    rgba(12, 12, 20, 0.64);
  --panel-2:  rgba(24, 24, 36, 0.52);
  --hair:     rgba(255,255,255,0.08);
  --hair-soft:rgba(255,255,255,0.05);
  --hair-strong:rgba(255,255,255,0.18);
  --text:     #f4f4f9;
  --text-mid: #b9b9c9;
  --text-dim: #757589;
  --text-faint:#404055;
  --cyan:     #00f0ff;
  --magenta:  #ff2d7b;
  --amber:    #ffb84d;
  --violet:   #8b5cf6;
  --mint:     #00ffa3;
  --holo:     linear-gradient(115deg,#00f0ff 0%,#8b5cf6 32%,#ff2d7b 68%,#ffb84d 100%);
  --r:        18px;
  --r-lg:     28px;
  --r-pill:   999px;
  --shadow:   0 32px 90px -28px rgba(0,0,0,0.92);
  --fd: 'Chakra Petch', 'Noto Sans SC', sans-serif;
  --fb: 'Sora', 'Noto Sans SC', sans-serif;
  --fm: 'JetBrains Mono', monospace;
  --fc: 'Noto Sans SC', sans-serif;
}
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--fb);
  background: var(--bg);
  color: var(--text-mid);
  overflow-x: hidden;
  line-height: 1.7;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-weight: 400;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
img, svg { display: block; max-width: 100%; }
ul { list-style: none; }
::selection { background: rgba(139,92,246,0.45); color: #fff; }

/* ===== 背景层 ===== */
.holo-bg { position: fixed; inset: 0; z-index: -3; overflow: hidden; background: var(--bg); }
.holo-blob { position: absolute; border-radius: 50%; filter: blur(150px); mix-blend-mode: screen; opacity: 0.22; }
.holo-blob.b1 { width: 56vw; height: 56vw; background: radial-gradient(circle,#00f0ff 0%,transparent 65%); top:-14vw; left:-10vw; animation: float1 26s ease-in-out infinite; }
.holo-blob.b2 { width: 50vw; height: 50vw; background: radial-gradient(circle,#ff2d7b 0%,transparent 65%); top:34vh; right:-14vw; animation: float2 32s ease-in-out infinite; }
.holo-blob.b3 { width: 64vw; height: 64vw; background: radial-gradient(circle,#8b5cf6 0%,transparent 65%); bottom:-24vw; left:18vw; animation: float3 38s ease-in-out infinite; }
@keyframes float1 { 0%,100%{transform:translate(0,0) scale(1)} 50%{transform:translate(6vw,4vh) scale(1.1)} }
@keyframes float2 { 0%,100%{transform:translate(0,0) scale(1)} 50%{transform:translate(-5vw,-3vh) scale(.95)} }
@keyframes float3 { 0%,100%{transform:translate(0,0) scale(1)} 50%{transform:translate(-3vw,-5vh) scale(1.08)} }
.quantum-grid {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background-image:
    linear-gradient(rgba(0,240,255,0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,240,255,0.028) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, black 24%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 24%, transparent 78%);
}
.noise { position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.035; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E"); }
.vignette { position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 45%, rgba(0,0,0,0.8) 100%); }

.holo-text {
  background: var(--holo); background-size: 240% 240%;
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  animation: holo-shift 9s ease-in-out infinite;
  filter: drop-shadow(0 0 18px rgba(139,92,246,0.35));
}
@keyframes holo-shift { 0%,100%{background-position:0 50%} 50%{background-position:100% 50%} }

/* ===== 导航 ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 22px clamp(20px,5vw,64px);
  display: flex; align-items: center; justify-content: space-between;
  transition: padding .35s cubic-bezier(.4,0,.2,1), background .35s, border-color .35s;
}
.nav.scrolled {
  padding: 14px clamp(20px,5vw,64px);
  background: rgba(3,3,5,0.72);
  backdrop-filter: blur(30px) saturate(160%);
  -webkit-backdrop-filter: blur(30px) saturate(160%);
  border-bottom: 1px solid var(--hair-soft);
}
.logo { display: flex; align-items: center; gap: 12px; font-family: var(--fd); font-weight: 600; font-size: 18px; letter-spacing: 0.04em; color: var(--text); }
.logo-mark {
  width: 34px; height: 34px; border-radius: 10px;
  background: var(--holo); background-size: 240% 240%;
  animation: holo-shift 7s ease-in-out infinite;
  position: relative; display: grid; place-items: center;
  box-shadow: 0 0 24px rgba(139,92,246,0.45);
}
.logo-mark::after { content: ''; width: 11px; height: 11px; background: #000; border-radius: 2px; transform: rotate(45deg); }
.logo-tag { font-family: var(--fm); font-size: 9px; color: var(--text-dim); letter-spacing: 0.26em; font-weight: 400; display: block; margin-top: 2px; }
.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-menu a { padding: 9px 15px; font-size: 13px; font-weight: 500; color: var(--text-mid); letter-spacing: .02em; border-radius: var(--r-pill); transition: color .25s, background .25s; }
.nav-menu a:hover { color: var(--text); background: rgba(255,255,255,0.07); }
.nav-cta {
  margin-left: 12px; padding: 11px 24px;
  font-family: var(--fd); font-weight: 700; font-size: 12px; letter-spacing: .06em;
  color: #000; background: var(--holo); background-size: 240% 240%;
  border-radius: var(--r-pill); animation: holo-shift 7s ease-in-out infinite;
  transition: all .3s;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 10px 36px rgba(139,92,246,0.5); }
.burger { display: none; width: 38px; height: 38px; position: relative; cursor: pointer; }
.burger span { position: absolute; left: 8px; right: 8px; height: 1.5px; background: var(--text); transition: all .3s; }
.burger span:nth-child(1){ top:13px} .burger span:nth-child(2){ top:19px} .burger span:nth-child(3){ top:25px}
.burger.open span:nth-child(1){transform:rotate(45deg);top:19px}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:rotate(-45deg);top:19px}

.wrap { width:100%; max-width:1280px; margin:0 auto; padding: 0 clamp(20px,5vw,64px); }

/* ===== 文章头 ===== */
.article-hero { padding: clamp(130px,18vh,190px) 0 0; position: relative; }
.crumbs { display: flex; align-items: center; gap: 10px; font-family: var(--fm); font-size: 11px; color: var(--text-dim); letter-spacing: .14em; margin-bottom: 26px; flex-wrap: wrap; }
.crumbs a { transition: color .2s; }
.crumbs a:hover { color: var(--text); }
.crumbs .sep { color: var(--text-faint); }
.crumbs .cur { color: var(--text-mid); }
.article-head { max-width: 900px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--fm); font-size: 11px; color: var(--text-dim);
  letter-spacing: .24em; text-transform: uppercase;
  padding: 7px 14px; border: 1px solid var(--hair);
  border-radius: var(--r-pill); background: var(--panel);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  margin-bottom: 24px;
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 10px var(--mint); animation: pulse 2.2s infinite; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.35;transform:scale(.8)} }
.article-h1 {
  font-family: var(--fd); font-weight: 700;
  font-size: clamp(30px,4.6vw,54px); line-height: 1.14;
  letter-spacing: -0.02em; color: var(--text); margin-bottom: 26px;
}
.article-meta { display: flex; flex-wrap: wrap; gap: 12px 26px; padding-bottom: 34px; border-bottom: 1px solid var(--hair-soft); margin-bottom: 0; }
.article-meta .meta-item { display: flex; align-items: center; gap: 9px; font-family: var(--fm); font-size: 11px; color: var(--text-dim); letter-spacing: .12em; }
.article-meta .meta-item::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--holo); }
.article-meta .meta-item .kw { color: var(--cyan); }
.article-meta .meta-item .hl { color: var(--mint); }

/* ===== 正文 ===== */
.article-body { max-width: 820px; margin: 0 auto; padding: clamp(40px,6vw,72px) 0 clamp(60px,8vw,100px); }
.article-body p {
  font-family: var(--fc); font-size: 16.5px; line-height: 2.05;
  color: #c6c6d6; margin-bottom: 28px; font-weight: 400;
  text-align: justify;
}
.article-body p:first-of-type {
  font-size: 18.5px; color: var(--text);
  border-left: 2px solid; border-image: var(--holo) 1;
  padding-left: 22px;
}
.article-body strong { color: var(--text); font-weight: 600; }
.article-body strong.hl { color: var(--cyan); }
.article-end {
  margin-top: 40px; padding: 22px 26px;
  background: var(--panel); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-radius: var(--r); font-size: 13px; color: var(--text-dim); font-family: var(--fc);
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
}
.article-end::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 10px var(--mint); }
.article-end a { color: var(--mint); border-bottom: 1px solid rgba(0,255,163,.35); }

/* ===== 相关阅读 ===== */
.related { border-top: 1px solid var(--hair-soft); padding: clamp(60px,8vw,90px) 0; background: rgba(3,3,5,.5); }
.rel-head { display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 20px; margin-bottom: 40px; }
.rel-title { font-family: var(--fd); font-weight: 700; font-size: clamp(26px,3.4vw,40px); color: var(--text); letter-spacing: -0.01em; }
.rel-title .em { font-weight: 700; }
.rel-more { font-family: var(--fm); font-size: 11px; color: var(--text-dim); letter-spacing: .16em; text-transform: uppercase; display: inline-flex; align-items: center; gap: 8px; transition: color .2s; }
.rel-more:hover { color: var(--text); }
.rel-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.rel-card {
  border: 1px solid var(--hair); border-radius: var(--r);
  background: var(--panel); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  padding: 20px 18px; position: relative; overflow: hidden; transition: all .35s;
  display: flex; flex-direction: column; gap: 10px; min-height: 128px;
}
.rel-card::before { content: ''; position: absolute; inset: 0; background: linear-gradient(160deg, rgba(139,92,246,.14) 0%, rgba(255,45,123,.1) 100%); opacity: 0; transition: opacity .3s; }
.rel-card:hover { transform: translateY(-5px); border-color: var(--hair-strong); }
.rel-card:hover::before { opacity: 1; }
.rel-card .num { font-family: var(--fm); font-size: 10px; color: var(--text-dim); letter-spacing: .2em; position: relative; }
.rel-card .kw { font-family: var(--fd); font-weight: 600; font-size: 15px; color: var(--text); line-height: 1.35; position: relative; }
.rel-card .go { font-family: var(--fm); font-size: 10px; color: var(--mint); letter-spacing: .14em; margin-top: auto; position: relative; opacity: 0; transform: translateX(-4px); transition: all .25s; }
.rel-card:hover .go { opacity: 1; transform: translateX(0); }

/* ===== CTA ===== */
.cta { padding: clamp(30px,5vw,70px) 0 clamp(60px,8vw,110px); }
.cta-box {
  position: relative; padding: clamp(44px,6vw,72px) clamp(24px,4vw,56px);
  border-radius: var(--r-lg); background: var(--panel);
  backdrop-filter: blur(28px); -webkit-backdrop-filter: blur(28px);
  border: 1px solid var(--hair); overflow: hidden; text-align: center;
  box-shadow: 0 56px 140px -34px rgba(0,0,0,.95);
}
.cta-box::before { content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 320px; height: 2px; background: var(--holo); background-size: 240% 240%; animation: holo-shift 7s ease-in-out infinite; box-shadow: 0 0 24px rgba(139,92,246,.6); }
.cta-box::after { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at center top, rgba(139,92,246,.14), transparent 58%); pointer-events: none; }
.cta-h { font-family: var(--fd); font-weight: 700; font-size: clamp(26px,4vw,42px); color: var(--text); margin-bottom: 14px; letter-spacing: -0.02em; position: relative; }
.cta-p { font-size: 15px; color: var(--text-dim); max-width: 560px; margin: 0 auto 30px; line-height: 1.8; position: relative; font-family: var(--fc); }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; position: relative; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 28px; font-family: var(--fd); font-weight: 700; font-size: 13px; letter-spacing: .05em;
  border-radius: var(--r-pill); transition: all .25s cubic-bezier(.4,0,.2,1); position: relative; overflow: hidden;
}
.btn-fill { color: #000; background: var(--holo); background-size: 240% 240%; animation: holo-shift 7s ease-in-out infinite; }
.btn-fill:hover { transform: translateY(-3px); box-shadow: 0 14px 48px rgba(139,92,246,.55); }
.btn-ghost { color: var(--text); border: 1px solid var(--hair-strong); background: var(--panel); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.btn-ghost:hover { border-color: rgba(255,255,255,.45); background: rgba(255,255,255,.08); }
.btn .ar { transition: transform .25s; }
.btn:hover .ar { transform: translateX(4px); }

/* ===== Footer ===== */
.foot { border-top: 1px solid var(--hair-soft); padding: 72px 0 32px; background: rgba(3,3,5,.6); }
.foot-grid { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 52px; }
.foot-brand .logo { margin-bottom: 20px; }
.foot-desc { font-size: 13px; color: var(--text-dim); line-height: 1.8; max-width: 340px; margin-bottom: 22px; font-weight: 400; }
.foot-social { display: flex; gap: 10px; }
.foot-social a { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid var(--hair); border-radius: 10px; background: var(--panel); transition: all .2s; }
.foot-social a:hover { border-color: var(--hair-strong); background: rgba(255,255,255,.06); transform: translateY(-2px); }
.foot-social svg { width: 16px; height: 16px; stroke: var(--text-mid); fill: none; stroke-width: 1.5; transition: stroke .2s; }
.foot-social a:hover svg { stroke: var(--text); }
.foot-col h6 { font-family: var(--fd); font-weight: 600; font-size: 12px; color: var(--text); letter-spacing: .15em; text-transform: uppercase; margin-bottom: 18px; }
.foot-col ul li { margin-bottom: 10px; }
.foot-col ul li a { font-size: 13px; color: var(--text-dim); transition: color .2s; }
.foot-col ul li a:hover { color: var(--text); }
.foot-bottom { padding-top: 26px; border-top: 1px solid var(--hair-soft); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; font-family: var(--fm); font-size: 11px; color: var(--text-faint); }
.foot-bottom .icp { display: flex; gap: 16px; flex-wrap: wrap; }

/* 滚动显示 */
.r { opacity: 0; transform: translateY(30px); transition: opacity .9s cubic-bezier(.16,1,.3,1), transform .9s cubic-bezier(.16,1,.3,1); }
.r.in { opacity: 1; transform: translateY(0); }
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}

/* 响应式 */
@media (max-width: 1080px) {
  .rel-grid { grid-template-columns: repeat(3, 1fr); }
  .foot-grid { grid-template-columns: 1fr 1fr 1fr; gap: 38px; }
}
@media (max-width: 768px) {
  .nav { padding: 16px 20px; }
  .nav.scrolled { padding: 12px 20px; }
  .nav-menu { position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; align-items: stretch; background: rgba(3,3,5,.96); backdrop-filter: blur(28px); -webkit-backdrop-filter: blur(28px); padding: 20px; gap: 4px; border-bottom: 1px solid var(--hair); transform: translateY(-150%); transition: transform .4s cubic-bezier(.4,0,.2,1); }
  .nav-menu.open { transform: translateY(0); }
  .nav-menu a { padding: 12px 16px; font-size: 14px; }
  .nav-cta { margin-left: 0; margin-top: 8px; width: 100%; }
  .burger { display: block; }
  .article-h1 { font-size: clamp(26px, 8vw, 40px); }
  .article-body p { font-size: 15.5px; line-height: 1.95; }
  .article-body p:first-of-type { font-size: 16.5px; }
  .rel-grid { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .cta-actions { flex-direction: column; align-items: stretch; }
  .rel-head { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 480px) {
  .rel-grid { grid-template-columns: 1fr 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration:.01ms !important; transition-duration:.01ms !important; }
}