/* ============================================================
   TEMPLATE 11 — Plasma Core
   黑紫品红等离子辉光,AI 算力/模型评测氛围。
   字体:Chakra Petch(display)+ Manrope(body)。
   适用:AI 模型 / 算力 / 推理服务 niche。
   ============================================================ */

:root {
  --bg: #060309;
  --panel: #0e0916;
  --panel-2: #140d20;
  --line: #2a1f3d;
  --line-bright: #453361;
  --ink: #f2ecfa;
  --muted: #b1a3c9;
  --faint: #847696;
  --violet: #a855f7;
  --violet-dim: #7c3aed;
  --magenta: #ec4899;
  --grad: linear-gradient(100deg, #a855f7, #ec4899);
  --font-head: "Chakra Petch", "Segoe UI", sans-serif;
  --font-body: "Manrope", -apple-system, "Segoe UI", sans-serif;
  --font-mono: "Chakra Petch", monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-padding-top: 80px; }
body { font-family: var(--font-body); background: var(--bg); color: var(--ink); line-height: 1.68; font-size: 16.5px; -webkit-font-smoothing: antialiased; }
a { color: var(--violet); text-decoration: none; }
a:hover { color: var(--magenta); }
h1, h2, h3 { font-family: var(--font-head); font-weight: 600; line-height: 1.18; letter-spacing: 0.01em; text-wrap: balance; }
h1 { font-size: clamp(2rem, 4.6vw, 3.3rem); text-transform: uppercase; }
h2 { font-size: 1.55rem; text-transform: uppercase; }
.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 780px; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- 顶栏 ---------- */
.topbar { border-bottom: 1px solid var(--line); background: rgba(6, 3, 9, 0.9); backdrop-filter: blur(10px); }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; padding: 15px 0; }
.brand { font-family: var(--font-head); font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink); }
.brand b { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.topnav { display: flex; gap: 22px; font-family: var(--font-mono); font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.1em; }
.topnav a { color: var(--muted); }
.topnav a:hover { color: var(--magenta); }
@media (max-width: 720px) { .topnav { display: none; } }

/* ---------- Hero:等离子辉光 ---------- */
.hero { padding: 64px 0 52px; position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; filter: blur(90px); pointer-events: none; }
.hero::before { width: 480px; height: 480px; background: rgba(124, 58, 237, 0.22); top: -180px; left: -100px; }
.hero::after { width: 420px; height: 420px; background: rgba(236, 72, 153, 0.13); bottom: -200px; right: -80px; }
.hero .container { position: relative; z-index: 1; }
.core-tag { display: inline-block; font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--magenta); border: 1px solid var(--line-bright); padding: 5px 14px; border-radius: 4px; margin-bottom: 20px; }
.hero .lede { color: var(--muted); max-width: 62ch; font-size: 1.08rem; margin-top: 14px; }
.hero-meta { margin-top: 22px; font-family: var(--font-mono); font-size: 0.78rem; color: var(--faint); display: flex; gap: 22px; flex-wrap: wrap; }
.hero-meta b { color: var(--violet); font-weight: 600; }

/* ---------- 排名单元 ---------- */
.cores { padding: 34px 0 44px; display: grid; gap: 16px; }
.plasma-cell {
  display: grid; grid-template-columns: 86px 1fr 200px;
  border: 1px solid var(--line); border-radius: 12px; background: var(--panel);
  position: relative; overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}
.plasma-cell::before { content: ""; position: absolute; inset: 0; border-radius: 12px; padding: 1px;
  background: linear-gradient(120deg, rgba(168,85,247,0.5), transparent 35%, transparent 65%, rgba(236,72,153,0.35));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0; transition: opacity 0.3s ease; pointer-events: none; }
.plasma-cell:hover { transform: translateY(-2px); box-shadow: 0 20px 50px -22px rgba(168, 85, 247, 0.4); }
.plasma-cell:hover::before { opacity: 1; }
@media (max-width: 860px) { .plasma-cell { grid-template-columns: 64px 1fr; } .plasma-cell .c-power { grid-column: 2; border-left: 0; border-top: 1px solid var(--line); } }
.c-index { display: grid; place-items: center; border-right: 1px solid var(--line); background: var(--panel-2);
  font-family: var(--font-head); font-size: 1.7rem; font-weight: 700; color: var(--violet); }
.c-body { padding: 22px 26px; }
.c-body h3 { font-size: 1.3rem; margin-bottom: 7px; }
.c-body h3 .charge { font-size: 0.64rem; letter-spacing: 0.14em; text-transform: uppercase; color: #fff; background: var(--grad); padding: 3px 10px; border-radius: 4px; margin-left: 10px; vertical-align: 2px; }
.c-body p { color: var(--muted); font-size: 0.95rem; }
.c-power { border-left: 1px solid var(--line); padding: 20px; display: flex; flex-direction: column; gap: 8px; justify-content: center; font-family: var(--font-mono); }
.pw { display: flex; justify-content: space-between; font-size: 0.76rem; color: var(--muted); }
.pw b { color: var(--ink); font-weight: 500; }
.c-score { font-family: var(--font-head); font-size: 1.9rem; font-weight: 700; text-align: right; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; line-height: 1.15; }
.c-score small { display: block; font-size: 0.64rem; color: var(--faint); letter-spacing: 0.14em; text-transform: uppercase; -webkit-text-fill-color: var(--faint); }
.c-score { position: relative; display: inline-block; margin-bottom: 10px; margin-left: auto; }
.c-score::after { content: ""; position: absolute; left: 0; right: 0; bottom: -4px; height: 2px; background: var(--grad);
  transform: scaleX(0); transition: transform 0.7s cubic-bezier(0.22,1,0.36,1) 0.35s; }
.in .c-score::after { transform: scaleX(1); }

/* ---------- 表格 ---------- */
.compare-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; margin: 24px 0; font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.compare-table th, .compare-table td { border: 1px solid var(--line); padding: 10px 14px; text-align: left; background: var(--panel); }
.compare-table th { background: var(--panel-2); color: var(--violet); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; }
.compare-table td:first-child { color: var(--muted); }
@media (max-width: 640px) { .compare-table { display: block; overflow-x: auto; } .compare-table tbody { display: table; width: 100%; min-width: 480px; } }

/* ---------- 正文 ---------- */
.prose { padding: 46px 0 64px; }
.prose h2 { margin: 38px 0 14px; }
.prose p { margin-bottom: 16px; color: #d8cdea; }
.flux-note { border: 1px solid var(--line-bright); border-radius: 10px; padding: 18px 22px; margin: 26px 0; background: linear-gradient(160deg, rgba(124,58,237,0.1), transparent 60%); }
.flux-note .f-label { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--magenta); margin-bottom: 8px; }

/* ---------- 页脚 ---------- */
.footer { border-top: 1px solid var(--line); margin-top: 48px; font-size: 0.86rem; }
.footer-inner { padding: 32px 0; display: grid; gap: 12px; color: var(--muted); }
.related-note { font-family: var(--font-mono); font-size: 0.74rem; color: var(--faint); border-top: 1px solid var(--line); padding-top: 12px; }

/* ---- 微交互/无障碍/动效 ---- */
:focus-visible { outline: 2px solid var(--violet); outline-offset: 3px; }
::selection { background: rgba(168, 85, 247, 0.3); }
a { text-underline-offset: 3px; }
.back-top { position: fixed; right: 18px; bottom: 18px; z-index: 30; width: 42px; height: 42px; border-radius: 8px;
  display: grid; place-items: center; background: var(--grad); color: #fff; font-size: 1.05rem;
  opacity: 0; pointer-events: none; transition: opacity 0.25s ease; }
.skip-link { position: absolute; left: -9999px; top: 8px; z-index: 100; background: var(--ink); color: var(--bg); padding: 10px 18px; font-weight: 600; }
.skip-link:focus { left: 8px; }
[data-animate] { opacity: 0; transform: translateY(14px); transition: opacity 0.65s cubic-bezier(0.22,1,0.36,1), transform 0.65s cubic-bezier(0.22,1,0.36,1); transition-delay: inherit; will-change: opacity, transform; }
[data-animate].in { opacity: 1; transform: none; }
.c-score a, .pw a::after { }
.topbar.scrolled { box-shadow: 0 10px 40px -14px rgba(124, 58, 237, 0.3); }
.topbar { transition: box-shadow 0.25s ease; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  [data-animate] { opacity: 1; transform: none; transition: none; }
}

/* R1 typography features */
body { font-feature-settings: "kern" 1, "liga" 1, "calt" 1; -webkit-tap-highlight-color: transparent; }

/* R2 editorial measure */
.prose p { text-wrap: pretty; orphans: 3; widows: 3; }
.prose { hyphens: auto; }

/* R5 hover inner response */
.plasma-cell:hover .c-index { color: var(--magenta); transition: color 0.3s ease; } .c-index { transition: color 0.3s ease; }

/* R6 prose link underline grow */
.prose p a {
  background: linear-gradient(currentColor, currentColor) bottom left / 0% 1px no-repeat;
  transition: background-size 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  padding-bottom: 2px;
}
.prose p a:hover { background-size: 100% 1px; }

/* R7 themed scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #a855f755; border-radius: 5px; border: 2px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: #a855f7; border: 2px solid transparent; background-clip: content-box; }

/* R8 touch feedback */
.plasma-cell:active { transform: scale(0.995); }

/* R9 back-top smooth elevator */
.back-top { transform: translateY(10px); transition: opacity 0.25s ease, transform 0.3s cubic-bezier(0.22, 1, 0.36, 1); }
.back-top[style*="opacity: 1"], .back-top:hover { transform: translateY(0); }
.back-top:active { transform: translateY(2px); }

/* R1 hero core decoration */
.hero::before, .hero::after { /* 已有辉光球 */ }
.hero .grad-ring {
  position: absolute; right: 6%; top: 50%; transform: translateY(-50%);
  width: 300px; height: 300px; border-radius: 50%; pointer-events: none;
  border: 1px solid rgba(168, 85, 247, 0.3);
}

/* R2 metric label alignment */
.pw span { min-width: 88px; }

/* R3 footer two-column */
@media (min-width: 860px) {
  .footer-inner { grid-template-columns: 1fr auto; align-items: start; }
  .footer-inner > div:first-child { order: 1; }
  .related-note { order: 2; max-width: 56ch; border-top: 0; padding-top: 0; text-align: right; }
}

/* R4 current page nav state */
.topnav a[aria-current='page'] { color: var(--magenta); }