/* ==========================================================================
   suanzhangjiqi.com — 算账机器人（全自动开群算账工具站）
   霓虹游戏风：近黑底 + 品红/青/紫霓虹渐变，28 开奖·预测·街机氛围
   单文件 CSS，无框架，中文 UTF-8（正文/SEO 结构未动，仅换皮）
   ========================================================================== */

/* ---------- 字体：Inter 自托管可变字体（单文件 woff2，复用原文件） ---------- */
@font-face {
  font-family: 'Inter';
  src: url('fonts/inter-var.woff2') format('woff2-variations');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

/* ---------- 设计变量（霓虹色板 / 间距 / 圆角 / 辉光） ---------- */
:root {
  /* 底色：近黑蓝紫 */
  --bg-0: #0a0a12;          /* 页面最底层 */
  --bg-1: #0e0e1c;          /* 区块底色 */
  --bg-2: #15152a;          /* 卡片底色（深色玻璃） */
  --bg-3: #1e1e3a;          /* 卡片悬浮/加深 */

  /* 霓虹主副色：品红 + 青 为主，紫做渐变过渡，橙仅提示/警示 */
  --pink: #ff2d95;
  --pink-soft: rgba(255, 45, 149, 0.12);
  --cyan: #00e5ff;
  --cyan-soft: rgba(0, 229, 255, 0.10);
  --violet: #a855f7;
  --violet-soft: rgba(168, 85, 247, 0.12);
  --orange: #ff9f1c;
  --orange-soft: rgba(255, 159, 28, 0.10);

  /* 描边 */
  --line: rgba(168, 85, 247, 0.18);          /* 紫描边 */
  --line-strong: rgba(0, 229, 255, 0.38);    /* 青霓虹描边 */
  --line-pink: rgba(255, 45, 149, 0.38);

  /* 文字 */
  --text-1: #f5f2ff;
  --text-2: #b6b2d6;
  --text-3: #7c77a3;

  /* 渐变 */
  --grad-main: linear-gradient(96deg, var(--cyan) 0%, var(--violet) 55%, var(--pink) 100%);
  --grad-cta: linear-gradient(96deg, var(--pink) 0%, var(--violet) 100%);
  --grad-soft: linear-gradient(160deg, rgba(0, 229, 255, 0.10), rgba(255, 45, 149, 0.06));

  /* 辉光 */
  --glow-cyan: 0 0 16px rgba(0, 229, 255, 0.45), 0 0 40px rgba(0, 229, 255, 0.18);
  --glow-pink: 0 0 16px rgba(255, 45, 149, 0.45), 0 0 40px rgba(255, 45, 149, 0.18);
  --glow-violet: 0 0 16px rgba(168, 85, 247, 0.45), 0 0 40px rgba(168, 85, 247, 0.18);
  --shadow: 0 16px 44px rgba(0, 0, 0, 0.55);

  /* 字号 */
  --fs-hero: clamp(34px, 5.2vw, 58px);
  --fs-h2: clamp(24px, 3vw, 34px);
  --fs-h3: 20px;
  --fs-body: 16px;
  --fs-small: 14px;

  --radius: 14px;
  --radius-sm: 8px;
  --font-mono: 'Inter', ui-monospace, 'Cascadia Mono', 'JetBrains Mono', Consolas, monospace;
}

/* ---------- Reset / 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', system-ui, sans-serif;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--text-1);
  background:
    radial-gradient(1000px 560px at 88% -8%, rgba(255, 45, 149, 0.14), transparent 62%),
    radial-gradient(900px 520px at -8% 24%, rgba(0, 229, 255, 0.11), transparent 58%),
    radial-gradient(760px 480px at 60% 108%, rgba(168, 85, 247, 0.10), transparent 60%),
    var(--bg-0);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--cyan); text-decoration: none; }
a:hover { color: #7ff0ff; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }

::selection { background: rgba(255, 45, 149, 0.40); color: #fff; }

/* 滚动条（霓虹） */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-0); }
::-webkit-scrollbar-thumb { background: linear-gradient(180deg, #3a2a6b, #232350); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: linear-gradient(180deg, var(--violet), var(--pink)); }

/* 可见焦点（无障碍） */
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
  box-shadow: var(--glow-cyan);
}

/* ---------- 全局霓虹背景氛围层（纯 CSS，无图片；星空点阵 + 扫描线） ---------- */
.bg-fx { position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; }

.bg-starfield {
  position: absolute; inset: 0; display: block;
  background-image:
    radial-gradient(1.4px 1.4px at 8% 14%, rgba(0, 229, 255, 0.65), transparent 100%),
    radial-gradient(1.1px 1.1px at 22% 62%, rgba(255, 45, 149, 0.55), transparent 100%),
    radial-gradient(1.6px 1.6px at 37% 28%, rgba(168, 85, 247, 0.60), transparent 100%),
    radial-gradient(1.0px 1.0px at 51% 74%, rgba(0, 229, 255, 0.50), transparent 100%),
    radial-gradient(1.3px 1.3px at 66% 12%, rgba(255, 45, 149, 0.50), transparent 100%),
    radial-gradient(1.1px 1.1px at 78% 48%, rgba(168, 85, 247, 0.55), transparent 100%),
    radial-gradient(1.5px 1.5px at 90% 82%, rgba(0, 229, 255, 0.50), transparent 100%),
    radial-gradient(1.0px 1.0px at 14% 88%, rgba(168, 85, 247, 0.45), transparent 100%);
  background-size: 620px 620px, 540px 540px, 700px 700px, 480px 480px, 660px 660px, 580px 580px, 520px 520px, 600px 600px;
  background-repeat: repeat;
  animation: starDrift 120s linear infinite;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 30%, #000 20%, transparent 85%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 30%, #000 20%, transparent 85%);
}
@keyframes starDrift {
  from { background-position: 0 0, 0 0, 0 0, 0 0, 0 0, 0 0, 0 0, 0 0; }
  to { background-position: 620px 420px, 540px 360px, 700px 460px, 480px 320px, 660px 430px, 580px 380px, 520px 340px, 600px 400px; }
}

.bg-scanlines {
  position: absolute; inset: 0; display: block;
  background: repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.030) 0 1px, transparent 1px 4px);
  opacity: 0.55;
  mix-blend-mode: overlay;
}

/* ---------- 布局工具 ---------- */
.container { width: min(1180px, 92%); margin-inline: auto; }

.section { padding: clamp(56px, 8vw, 96px) 0; }
.section-tight { padding: clamp(40px, 6vw, 64px) 0; }

.section-head { max-width: 720px; margin-bottom: 42px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head .kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; letter-spacing: 2px; color: var(--cyan);
  text-transform: uppercase; font-weight: 700;
  margin-bottom: 14px;
  text-shadow: 0 0 10px rgba(0, 229, 255, 0.55);
}
.section-head .kicker::before {
  content: ""; width: 26px; height: 2px;
  background: var(--grad-main); border-radius: 2px;
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.6);
}
.section-head.center .kicker::after {
  content: ""; width: 26px; height: 2px;
  background: var(--grad-main); border-radius: 2px;
  box-shadow: 0 0 10px rgba(255, 45, 149, 0.6);
}
.section-head h2 { font-size: var(--fs-h2); line-height: 1.3; font-weight: 800; letter-spacing: -0.5px; }
.section-head h2 .grad { background: var(--grad-main); -webkit-background-clip: text; background-clip: text; color: transparent; filter: drop-shadow(0 0 12px rgba(168, 85, 247, 0.45)); }
.section-head p { color: var(--text-2); margin-top: 12px; }

/* ---------- 霓虹文字工具 ---------- */
.grad {
  background: var(--grad-main);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 14px rgba(0, 229, 255, 0.35));
}
.neon {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--cyan);
  text-shadow: 0 0 8px rgba(0, 229, 255, 0.85), 0 0 22px rgba(0, 229, 255, 0.45), 0 0 44px rgba(0, 229, 255, 0.22);
}
.neon.pink { color: var(--pink); text-shadow: 0 0 8px rgba(255, 45, 149, 0.85), 0 0 22px rgba(255, 45, 149, 0.45); }
.neon.violet { color: var(--violet); text-shadow: 0 0 8px rgba(168, 85, 247, 0.85), 0 0 22px rgba(168, 85, 247, 0.45); }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* ---------- 按钮（霓虹辉光） ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 26px; border-radius: 10px;
  font-size: 15px; font-weight: 700; line-height: 1.4;
  border: 1px solid transparent;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease, filter .18s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px) scale(.99); }

.btn-primary {
  background: var(--grad-cta); color: #fff !important;
  border-color: rgba(255, 45, 149, 0.55);
  box-shadow: 0 0 20px rgba(255, 45, 149, 0.38), 0 8px 28px rgba(168, 85, 247, 0.30), inset 0 0 14px rgba(255, 255, 255, 0.10);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 34px rgba(255, 45, 149, 0.62), 0 0 64px rgba(168, 85, 247, 0.35), 0 12px 34px rgba(168, 85, 247, 0.35);
  color: #fff !important;
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-1);
  border-color: var(--line-strong);
  box-shadow: inset 0 0 12px rgba(0, 229, 255, 0.06);
}
.btn-ghost:hover {
  border-color: var(--cyan); color: var(--cyan);
  transform: translateY(-2px);
  box-shadow: var(--glow-cyan), inset 0 0 16px rgba(0, 229, 255, 0.10);
}

.btn-lg { padding: 15px 36px; font-size: 16px; border-radius: 12px; }
.btn-sm { padding: 8px 16px; font-size: 13px; border-radius: 8px; }

/* Telegram CTA 专属（青色霓虹化） */
.btn-tg {
  background: linear-gradient(96deg, #0fb8ff, #00e5ff);
  color: #041018 !important;
  box-shadow: 0 0 18px rgba(0, 229, 255, 0.42), 0 8px 24px rgba(0, 200, 255, 0.30);
}
.btn-tg:hover { transform: translateY(-2px); box-shadow: 0 0 30px rgba(0, 229, 255, 0.65), 0 12px 32px rgba(0, 200, 255, 0.4); color: #041018 !important; }

.btn svg { flex: none; }

/* ---------- 角标徽章（霓虹描边） ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 11px; border-radius: 999px;
  font-size: 12px; font-weight: 700; letter-spacing: .5px;
  border: 1px solid var(--line-pink);
  color: var(--pink);
  background: var(--pink-soft);
  box-shadow: 0 0 12px rgba(255, 45, 149, 0.16), inset 0 0 10px rgba(255, 45, 149, 0.06);
  text-shadow: 0 0 8px rgba(255, 45, 149, 0.55);
}
.badge.green {
  color: var(--cyan); border-color: rgba(0, 229, 255, 0.5);
  background: var(--cyan-soft);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.18), inset 0 0 10px rgba(0, 229, 255, 0.06);
  text-shadow: 0 0 8px rgba(0, 229, 255, 0.6);
}
.badge.lime {
  color: var(--orange); border-color: rgba(255, 159, 28, 0.5);
  background: var(--orange-soft);
  box-shadow: 0 0 12px rgba(255, 159, 28, 0.16), inset 0 0 10px rgba(255, 159, 28, 0.06);
  text-shadow: 0 0 8px rgba(255, 159, 28, 0.55);
}
.badge .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; box-shadow: 0 0 10px currentColor; }

/* ---------- 头部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10, 10, 18, 0.80);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.site-header.scrolled { box-shadow: 0 10px 34px rgba(0, 0, 0, 0.5), 0 0 22px rgba(168, 85, 247, 0.08); }

.header-inner {
  display: flex; align-items: center; gap: 24px;
  height: 68px;
}

.logo { display: flex; align-items: center; gap: 10px; flex: none; }
.logo-mark {
  width: 36px; height: 36px; border-radius: 9px;
  display: grid; place-items: center;
  background: var(--grad-cta);
  color: #fff;
  box-shadow: 0 0 18px rgba(255, 45, 149, 0.5), 0 0 40px rgba(168, 85, 247, 0.25);
}
.logo-text { line-height: 1.15; }
.logo-text b { display: block; font-size: 17px; font-weight: 800; color: var(--text-1); letter-spacing: 1px; }
.logo-text span { font-size: 11px; color: var(--text-3); letter-spacing: 1.5px; }

.main-nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.main-nav a {
  padding: 9px 13px; border-radius: 8px;
  color: var(--text-2); font-size: 14.5px; font-weight: 500;
  transition: color .15s, background .15s, text-shadow .15s;
}
.main-nav a:hover { color: var(--cyan); background: var(--cyan-soft); text-shadow: 0 0 10px rgba(0, 229, 255, 0.5); }
.main-nav a.active {
  color: var(--cyan); background: var(--cyan-soft);
  text-shadow: 0 0 10px rgba(0, 229, 255, 0.6);
  box-shadow: inset 0 -2px 0 var(--cyan), 0 0 14px rgba(0, 229, 255, 0.12);
}

.header-cta { display: flex; align-items: center; gap: 10px; margin-left: 6px; }

/* 移动端菜单按钮 */
.nav-toggle {
  display: none; width: 42px; height: 42px;
  border: 1px solid var(--line-strong); border-radius: 9px;
  background: transparent; place-items: center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  display: block; width: 20px; height: 2px; border-radius: 2px;
  background: var(--cyan); position: relative; transition: transform .25s, opacity .25s;
}
.nav-toggle span::before { content: ""; position: absolute; top: -6px; }
.nav-toggle span::after { content: ""; position: absolute; top: 6px; }
.nav-toggle.open span { background: transparent; }
.nav-toggle.open span::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle.open span::after { transform: translateY(-6px) rotate(-45deg); }

/* ---------- Hero（首页） ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: clamp(70px, 10vw, 130px) 0 clamp(56px, 8vw, 96px);
}
.hero-grid-bg {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 45, 149, 0.045) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 20%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 20%, #000 30%, transparent 75%);
}
.hero-orb {
  position: absolute; border-radius: 50%; filter: blur(90px); opacity: .5; pointer-events: none;
  animation: orbFloat 9s ease-in-out infinite alternate;
}
.hero-orb.cyan { width: 480px; height: 480px; background: rgba(0, 229, 255, 0.28); top: -180px; right: -120px; }
.hero-orb.green { width: 420px; height: 420px; background: rgba(255, 45, 149, 0.24); bottom: -160px; left: -140px; animation-delay: -4s; }
@keyframes orbFloat {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(-40px, 30px, 0) scale(1.12); }
}

.hero-inner { position: relative; display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: center; }

.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 22px; }

.hero h1 {
  font-size: var(--fs-hero); line-height: 1.18; font-weight: 800; letter-spacing: -1px;
  text-shadow: 0 0 30px rgba(0, 229, 255, 0.14);
}
.hero h1 .grad { background: var(--grad-main); -webkit-background-clip: text; background-clip: text; color: transparent; filter: drop-shadow(0 0 16px rgba(255, 45, 149, 0.40)); }
.hero h1 .mono-num { font-family: var(--font-mono); }

.hero-sub { margin: 20px 0 30px; color: var(--text-2); max-width: 560px; font-size: 17px; }

.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }

.hero-stats {
  display: flex; flex-wrap: wrap; gap: 26px; margin-top: 40px;
  padding-top: 26px; border-top: 1px solid var(--line);
}
.hero-stat .num {
  font-family: var(--font-mono); font-size: 26px; font-weight: 700;
  font-variant-numeric: tabular-nums;
  background: var(--grad-main); -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 12px rgba(0, 229, 255, 0.45));
}
.hero-stat .lbl { font-size: 13px; color: var(--text-3); }

/* Hero 右侧：终端快照卡片（霓虹外壳） */
.hero-console { position: relative; }
.console-card {
  background: linear-gradient(180deg, #121226, #0b0b18);
  border: 1px solid var(--line-strong);
  border-radius: 16px; overflow: hidden;
  box-shadow: var(--shadow), 0 0 46px rgba(0, 229, 255, 0.14), 0 0 90px rgba(255, 45, 149, 0.08);
  animation: consoleIn .7s cubic-bezier(.2,.8,.2,1) both, consoleFloat 6.5s ease-in-out 1s infinite alternate;
}
@keyframes consoleIn { from { opacity: 0; transform: translateY(26px) scale(.98); } to { opacity: 1; transform: none; } }
@keyframes consoleFloat { from { transform: translateY(0); } to { transform: translateY(-10px); } }
.console-bar {
  display: flex; align-items: center; gap: 7px; padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(255, 45, 149, 0.07), rgba(0, 229, 255, 0.07));
}
.console-bar i { width: 11px; height: 11px; border-radius: 50%; box-shadow: 0 0 8px currentColor; }
.console-bar i:nth-child(1) { background: #ff2d95; color: #ff2d95; }
.console-bar i:nth-child(2) { background: #ff9f1c; color: #ff9f1c; }
.console-bar i:nth-child(3) { background: #00e5ff; color: #00e5ff; }
.console-bar span { margin-left: 8px; font-size: 12px; color: var(--text-3); font-family: var(--font-mono); }
.console-body { padding: 18px; font-family: var(--font-mono); font-size: 13px; line-height: 2; }
.console-line { display: flex; gap: 10px; }
.console-line .t { color: var(--text-3); flex: none; width: 86px; }
.console-line .v { color: var(--text-1); }
.console-line .v.ok { color: var(--cyan); text-shadow: 0 0 10px rgba(0, 229, 255, 0.55); }
.console-line .v.warn { color: var(--orange); text-shadow: 0 0 10px rgba(255, 159, 28, 0.55); }
.console-line .v.cyan { color: var(--pink); text-shadow: 0 0 10px rgba(255, 45, 149, 0.55); }
.console-line .bar { color: var(--text-3); }
.console-cursor::after { content: "▊"; color: var(--cyan); text-shadow: 0 0 10px rgba(0, 229, 255, 0.9); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.console-tag {
  position: absolute; top: -14px; left: 26px;
  background: var(--bg-3); border: 1px solid var(--line-strong);
  border-radius: 999px; padding: 5px 14px;
  font-size: 12px; color: var(--cyan); font-weight: 700;
  box-shadow: var(--shadow), 0 0 16px rgba(0, 229, 255, 0.25);
  text-shadow: 0 0 8px rgba(0, 229, 255, 0.6);
}

/* ---------- 产品矩阵卡片（深色玻璃 + 霓虹 hover 辉光） ---------- */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.product-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.product-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }

.product-card {
  position: relative; display: flex; flex-direction: column;
  background: linear-gradient(165deg, rgba(23, 23, 44, 0.78), rgba(12, 12, 26, 0.92));
  border: 1px solid rgba(168, 85, 247, 0.22); border-radius: var(--radius);
  padding: 24px 22px; overflow: hidden;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
  transform: perspective(900px) translateZ(0);
}
.product-card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: var(--grad-main); opacity: 0; transition: opacity .25s;
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.5);
}
.product-card:hover {
  transform: perspective(900px) translateY(-6px) rotateX(2.5deg);
  border-color: rgba(0, 229, 255, 0.55);
  box-shadow: 0 0 26px rgba(0, 229, 255, 0.20), 0 0 56px rgba(255, 45, 149, 0.14), 0 20px 44px rgba(0, 0, 0, 0.5);
}
.product-card:hover::before { opacity: 1; }

.product-card .pc-top { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 16px; }
.product-card .pc-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--grad-soft); border: 1px solid var(--line-strong);
  color: var(--cyan);
  box-shadow: 0 0 14px rgba(0, 229, 255, 0.18);
}
.product-card .pc-ver {
  font-family: var(--font-mono); font-size: 12px; color: var(--cyan);
  background: rgba(0, 229, 255, 0.06); border: 1px solid rgba(0, 229, 255, 0.3);
  border-radius: 6px; padding: 2px 8px;
  text-shadow: 0 0 8px rgba(0, 229, 255, 0.5);
}
.product-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.product-card h3 a { color: var(--text-1); }
.product-card h3 a:hover { color: var(--cyan); text-shadow: 0 0 12px rgba(0, 229, 255, 0.6); }
.product-card p { color: var(--text-2); font-size: 14.5px; flex: 1; }
.product-card .pc-badges { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 16px; }
.product-card .pc-link { margin-top: 18px; font-size: 14px; font-weight: 700; display: inline-flex; align-items: center; gap: 6px; color: var(--pink); text-shadow: 0 0 10px rgba(255, 45, 149, 0.35); }
.product-card .pc-link svg { transition: transform .18s; }
.product-card:hover .pc-link svg { transform: translateX(4px); }

/* ---------- 卖点（核心优势） ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-item {
  background: linear-gradient(165deg, rgba(23, 23, 44, 0.70), rgba(12, 12, 26, 0.88));
  border: 1px solid rgba(168, 85, 247, 0.18); border-radius: var(--radius);
  padding: 26px 24px; transition: border-color .2s, transform .2s, box-shadow .2s;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.feature-item:hover {
  border-color: rgba(255, 45, 149, 0.45); transform: translateY(-3px);
  box-shadow: 0 0 24px rgba(255, 45, 149, 0.16);
}
.feature-item .fi-icon {
  width: 44px; height: 44px; border-radius: 11px; margin-bottom: 16px;
  display: grid; place-items: center;
  background: var(--grad-soft); border: 1px solid rgba(0, 229, 255, 0.35); color: var(--cyan);
  box-shadow: 0 0 14px rgba(0, 229, 255, 0.16);
}
.feature-item h3 { font-size: 17px; margin-bottom: 8px; }
.feature-item p { font-size: 14px; color: var(--text-2); }

/* ---------- 平台支持 ---------- */
.platform-strip { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.platform-chip {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 11px 20px; border-radius: 999px;
  background: linear-gradient(160deg, rgba(23, 23, 44, 0.8), rgba(13, 13, 28, 0.9));
  border: 1px solid rgba(168, 85, 247, 0.22);
  color: var(--text-2); font-size: 14.5px; font-weight: 600;
  transition: border-color .2s, color .2s, transform .2s, box-shadow .2s;
}
.platform-chip:hover {
  border-color: var(--cyan); color: var(--cyan); transform: translateY(-2px);
  box-shadow: var(--glow-cyan);
}
.platform-chip svg { color: var(--cyan); }

/* ---------- 使用流程（步骤） ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.step-card {
  position: relative; background: linear-gradient(165deg, rgba(23, 23, 44, 0.70), rgba(12, 12, 26, 0.88));
  border: 1px solid rgba(168, 85, 247, 0.18);
  border-radius: var(--radius); padding: 26px 22px 22px;
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.step-card:hover { border-color: rgba(0, 229, 255, 0.45); transform: translateY(-3px); box-shadow: var(--glow-cyan); }
.step-card::before {
  counter-increment: step; content: "0" counter(step);
  font-family: var(--font-mono); font-size: 15px; font-weight: 700;
  color: var(--cyan); background: var(--cyan-soft);
  border: 1px solid rgba(0, 229, 255, 0.4);
  border-radius: 8px; padding: 2px 10px; display: inline-block; margin-bottom: 16px;
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.2);
  text-shadow: 0 0 8px rgba(0, 229, 255, 0.6);
}
.step-card h3 { font-size: 16.5px; margin-bottom: 7px; }
.step-card p { font-size: 14px; color: var(--text-2); }

/* ---------- 适用场景 ---------- */
.scene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.scene-card {
  display: flex; gap: 14px; align-items: flex-start;
  background: linear-gradient(165deg, rgba(23, 23, 44, 0.70), rgba(12, 12, 26, 0.88));
  border: 1px solid rgba(168, 85, 247, 0.18);
  border-radius: var(--radius); padding: 20px;
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.scene-card:hover { border-color: rgba(255, 45, 149, 0.45); transform: translateY(-3px); box-shadow: 0 0 22px rgba(255, 45, 149, 0.15); }
.scene-card svg { flex: none; color: var(--pink); margin-top: 3px; filter: drop-shadow(0 0 8px rgba(255, 45, 149, 0.5)); }
.scene-card h3 { font-size: 15.5px; margin-bottom: 4px; }
.scene-card p { font-size: 13.5px; color: var(--text-2); }

/* ---------- 快照卡片（首页产品快照） ---------- */
.snap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.snap-card {
  background: linear-gradient(165deg, rgba(23, 23, 44, 0.70), rgba(12, 12, 26, 0.88));
  border: 1px solid rgba(168, 85, 247, 0.18); border-radius: var(--radius);
  padding: 22px; transition: transform .2s, border-color .2s, box-shadow .2s;
}
.snap-card:hover { transform: translateY(-4px); border-color: rgba(0, 229, 255, 0.5); box-shadow: var(--glow-cyan); }
.snap-card .snap-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.snap-card h3 { font-size: 16px; }
.snap-card ul { display: grid; gap: 8px; margin-top: 12px; }
.snap-card li { display: flex; gap: 8px; align-items: flex-start; font-size: 13.5px; color: var(--text-2); }
.snap-card li svg { flex: none; color: var(--cyan); margin-top: 5px; filter: drop-shadow(0 0 6px rgba(0, 229, 255, 0.6)); }

/* ---------- 对比表格 ---------- */
.compare-table {
  width: 100%; border-collapse: collapse; font-size: 14.5px;
  background: linear-gradient(165deg, rgba(23, 23, 44, 0.80), rgba(12, 12, 26, 0.92));
  border-radius: var(--radius); overflow: hidden;
  border: 1px solid rgba(168, 85, 247, 0.18);
}
.compare-table th, .compare-table td { padding: 15px 18px; text-align: left; border-bottom: 1px solid var(--line); }
.compare-table thead th {
  background: linear-gradient(96deg, rgba(255, 45, 149, 0.16), rgba(168, 85, 247, 0.16));
  color: var(--text-1); font-weight: 700; font-size: 14px;
  text-shadow: 0 0 10px rgba(168, 85, 247, 0.4);
}
.compare-table tbody tr:last-child td { border-bottom: none; }
.compare-table td:first-child { color: var(--text-2); font-weight: 600; white-space: nowrap; }
.compare-table .yes { color: var(--cyan); font-weight: 700; text-shadow: 0 0 10px rgba(0, 229, 255, 0.5); }
.compare-table .no { color: var(--text-3); }

/* ---------- 功能明细（产品页） ---------- */
.func-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.func-card {
  background: linear-gradient(165deg, rgba(23, 23, 44, 0.70), rgba(12, 12, 26, 0.88));
  border: 1px solid rgba(168, 85, 247, 0.18); border-radius: var(--radius);
  padding: 24px; transition: border-color .2s, transform .2s, box-shadow .2s;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.func-card:hover { border-color: rgba(0, 229, 255, 0.5); transform: translateY(-3px); box-shadow: var(--glow-cyan); }
.func-card .fc-icon {
  width: 42px; height: 42px; border-radius: 10px; margin-bottom: 14px;
  display: grid; place-items: center;
  background: var(--grad-soft); border: 1px solid rgba(255, 45, 149, 0.35); color: var(--pink);
  box-shadow: 0 0 14px rgba(255, 45, 149, 0.16);
}
.func-card h3 { font-size: 16.5px; margin-bottom: 7px; }
.func-card p { font-size: 14px; color: var(--text-2); }

/* ---------- CTA 横幅 ---------- */
.cta-banner {
  position: relative; overflow: hidden;
  background:
    radial-gradient(560px 260px at 85% 0%, rgba(255, 45, 149, 0.16), transparent 65%),
    radial-gradient(560px 260px at 10% 100%, rgba(0, 229, 255, 0.13), transparent 65%),
    linear-gradient(165deg, rgba(23, 23, 44, 0.9), rgba(12, 12, 26, 0.95));
  border: 1px solid rgba(168, 85, 247, 0.35);
  border-radius: 20px; padding: clamp(34px, 5vw, 58px);
  text-align: center;
  box-shadow: 0 0 44px rgba(168, 85, 247, 0.14), var(--shadow);
}
.cta-banner::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 45, 149, 0.04) 1px, transparent 1px);
  background-size: 36px 36px; pointer-events: none;
}
.cta-banner h2 { font-size: var(--fs-h2); font-weight: 800; letter-spacing: -0.5px; position: relative; }
.cta-banner p { color: var(--text-2); margin: 14px auto 28px; max-width: 560px; position: relative; }
.cta-banner .cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; position: relative; }

/* ---------- FAQ 手风琴 ---------- */
.faq-list { max-width: 860px; margin-inline: auto; display: grid; gap: 12px; }
.faq-item {
  background: linear-gradient(165deg, rgba(23, 23, 44, 0.72), rgba(12, 12, 26, 0.9));
  border: 1px solid rgba(168, 85, 247, 0.20);
  border-radius: var(--radius); overflow: hidden;
  transition: border-color .2s, box-shadow .2s;
}
.faq-item.open {
  border-color: rgba(255, 45, 149, 0.5);
  box-shadow: 0 0 22px rgba(255, 45, 149, 0.14);
}
.faq-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 18px 22px; background: transparent; border: none;
  color: var(--text-1); font-size: 16px; font-weight: 600; text-align: left;
}
.faq-q .faq-icon {
  flex: none; width: 26px; height: 26px; border-radius: 7px;
  display: grid; place-items: center;
  border: 1px solid var(--line-strong); color: var(--cyan);
  transition: transform .25s, background .25s, color .25s, box-shadow .25s;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--grad-cta); color: #fff; border-color: var(--pink);
  box-shadow: 0 0 14px rgba(255, 45, 149, 0.5);
}
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-a-inner { padding: 0 22px 20px; color: var(--text-2); font-size: 14.5px; }

/* ---------- 页脚 ---------- */
.site-footer {
  border-top: 1px solid rgba(168, 85, 247, 0.22);
  background: linear-gradient(180deg, rgba(14, 14, 28, 0.75), rgba(8, 8, 16, 0.92));
  margin-top: 40px;
  box-shadow: 0 -20px 60px rgba(168, 85, 247, 0.05);
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 34px; padding: 52px 0 36px; }
.footer-col h4 {
  font-size: 14px; letter-spacing: 1.5px; color: var(--text-1); margin-bottom: 16px;
  padding-left: 10px; border-left: 2px solid var(--pink);
  box-shadow: -2px 0 10px rgba(255, 45, 149, 0.25);
}
.footer-col ul { display: grid; gap: 9px; }
.footer-col a { color: var(--text-3); font-size: 14px; transition: color .15s, text-shadow .15s; }
.footer-col a:hover { color: var(--cyan); text-shadow: 0 0 10px rgba(0, 229, 255, 0.5); }
.footer-about p { color: var(--text-3); font-size: 13.5px; margin-top: 14px; max-width: 300px; }
.footer-bottom {
  display: flex; flex-wrap: wrap; gap: 10px 28px; align-items: center; justify-content: space-between;
  padding: 18px 0; border-top: 1px solid rgba(168, 85, 247, 0.16);
  color: var(--text-3); font-size: 13px;
}

/* ---------- 子页 Hero ---------- */
.page-hero {
  position: relative; overflow: hidden;
  padding: clamp(46px, 7vw, 76px) 0 clamp(30px, 4vw, 44px);
  border-bottom: 1px solid rgba(168, 85, 247, 0.18);
  background:
    radial-gradient(600px 300px at 90% 0%, rgba(255, 45, 149, 0.10), transparent 65%),
    radial-gradient(600px 300px at 5% 100%, rgba(0, 229, 255, 0.09), transparent 65%);
}
.page-hero .hero-grid-bg { opacity: .7; }
.page-hero h1 {
  font-size: clamp(28px, 4vw, 44px); font-weight: 800; letter-spacing: -0.5px; line-height: 1.25; position: relative;
  text-shadow: 0 0 26px rgba(0, 229, 255, 0.12);
}
.page-hero h1 .grad { background: var(--grad-main); -webkit-background-clip: text; background-clip: text; color: transparent; filter: drop-shadow(0 0 14px rgba(255, 45, 149, 0.38)); }
.page-hero p { color: var(--text-2); margin-top: 14px; max-width: 720px; position: relative; }
.page-hero .hero-tags { margin-top: 20px; position: relative; margin-bottom: 0; }

/* 面包屑 */
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: 13px; color: var(--text-3); padding: 16px 0 0; }
.breadcrumb a { color: var(--text-3); }
.breadcrumb a:hover { color: var(--cyan); text-shadow: 0 0 8px rgba(0, 229, 255, 0.5); }
.breadcrumb svg { color: var(--text-3); }
.breadcrumb .cur { color: var(--cyan); }

/* ---------- 正文 / 文章 ---------- */
.prose { max-width: 780px; margin-inline: auto; color: var(--text-2); font-size: 15.5px; }
.prose h2 {
  color: var(--text-1); font-size: 24px; margin: 40px 0 16px; font-weight: 800; letter-spacing: -0.3px;
  text-shadow: 0 0 18px rgba(0, 229, 255, 0.14);
}
.prose h3 { color: var(--text-1); font-size: 18.5px; margin: 30px 0 12px; font-weight: 700; }
.prose p { margin: 14px 0; }
.prose ul, .prose ol { margin: 14px 0; padding-left: 4px; display: grid; gap: 9px; }
.prose ul li { padding-left: 24px; position: relative; }
.prose ul li::before {
  content: ""; position: absolute; left: 4px; top: 10px; width: 7px; height: 7px; border-radius: 2px;
  background: var(--grad-main); box-shadow: 0 0 8px rgba(0, 229, 255, 0.6);
}
.prose ol { counter-reset: ol; }
.prose ol li { padding-left: 26px; position: relative; counter-increment: ol; }
.prose ol li::before { content: counter(ol) "."; position: absolute; left: 0; font-family: var(--font-mono); color: var(--cyan); font-weight: 700; text-shadow: 0 0 8px rgba(0, 229, 255, 0.5); }
.prose strong { color: var(--text-1); font-weight: 700; }
.prose a { border-bottom: 1px dashed var(--cyan); text-shadow: 0 0 8px rgba(0, 229, 255, 0.3); }
.prose blockquote {
  border-left: 3px solid var(--pink);
  background: linear-gradient(90deg, rgba(255, 45, 149, 0.08), rgba(168, 85, 247, 0.04));
  padding: 14px 18px; border-radius: 0 10px 10px 0; margin: 20px 0;
  color: var(--text-2);
  box-shadow: inset 0 0 22px rgba(255, 45, 149, 0.05);
}
.prose table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; }
.prose th, .prose td { border: 1px solid rgba(168, 85, 247, 0.20); padding: 11px 14px; text-align: left; }
.prose th { background: linear-gradient(96deg, rgba(255, 45, 149, 0.12), rgba(168, 85, 247, 0.12)); color: var(--text-1); }

/* 文章头部 */
.article-head { text-align: center; max-width: 780px; margin: 0 auto 34px; }
.article-head .meta { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; color: var(--text-3); font-size: 13px; margin-top: 16px; }
.article-head .meta span { display: inline-flex; align-items: center; gap: 6px; }

/* 相关阅读 */
.related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.related-card {
  background: linear-gradient(165deg, rgba(23, 23, 44, 0.70), rgba(12, 12, 26, 0.88));
  border: 1px solid rgba(168, 85, 247, 0.18); border-radius: var(--radius); padding: 20px;
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.related-card:hover { border-color: rgba(0, 229, 255, 0.5); transform: translateY(-3px); box-shadow: var(--glow-cyan); }
.related-card h3 { font-size: 15.5px; margin-bottom: 6px; }
.related-card h3 a { color: var(--text-1); }
.related-card p { font-size: 13.5px; color: var(--text-3); }

/* ---------- 资讯列表 ---------- */
.news-list { display: grid; gap: 18px; max-width: 900px; margin-inline: auto; }
.news-card {
  display: flex; gap: 22px; align-items: center;
  background: linear-gradient(165deg, rgba(23, 23, 44, 0.72), rgba(12, 12, 26, 0.9));
  border: 1px solid rgba(168, 85, 247, 0.20); border-radius: var(--radius);
  padding: 24px; transition: border-color .2s, transform .2s, box-shadow .2s;
}
.news-card:hover { border-color: rgba(0, 229, 255, 0.5); transform: translateY(-3px); box-shadow: var(--glow-cyan); }
.news-card .nc-date {
  flex: none; width: 74px; text-align: center;
  border: 1px solid rgba(0, 229, 255, 0.4); border-radius: 12px;
  background: linear-gradient(160deg, rgba(0, 229, 255, 0.10), rgba(255, 45, 149, 0.06));
  padding: 10px 6px;
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.12);
}
.news-card .nc-date b { display: block; font-family: var(--font-mono); font-size: 22px; color: var(--cyan); text-shadow: 0 0 10px rgba(0, 229, 255, 0.6); }
.news-card .nc-date span { font-size: 12px; color: var(--text-3); }
.news-card h3 { font-size: 17.5px; margin-bottom: 6px; }
.news-card h3 a { color: var(--text-1); }
.news-card h3 a:hover { color: var(--cyan); text-shadow: 0 0 10px rgba(0, 229, 255, 0.5); }
.news-card p { font-size: 14px; color: var(--text-2); }
.news-card .nc-tags { display: flex; gap: 8px; margin-top: 10px; }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.contact-card {
  text-align: center;
  background: linear-gradient(165deg, rgba(23, 23, 44, 0.72), rgba(12, 12, 26, 0.9));
  border: 1px solid rgba(168, 85, 247, 0.20);
  border-radius: var(--radius); padding: 34px 24px;
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.contact-card:hover { border-color: rgba(255, 45, 149, 0.5); transform: translateY(-4px); box-shadow: 0 0 26px rgba(255, 45, 149, 0.18); }
.contact-card .cc-icon {
  width: 56px; height: 56px; margin: 0 auto 18px; border-radius: 14px;
  display: grid; place-items: center;
  background: var(--grad-soft); border: 1px solid rgba(0, 229, 255, 0.4); color: var(--cyan);
  box-shadow: 0 0 18px rgba(0, 229, 255, 0.2);
}
.contact-card h3 { font-size: 17px; margin-bottom: 8px; }
.contact-card p { font-size: 14px; color: var(--text-2); margin-bottom: 16px; }

/* ---------- 聊天室模拟窗口 ---------- */
.chat-window {
  background: linear-gradient(180deg, #131326, #0a0a18);
  border: 1px solid rgba(0, 229, 255, 0.35); border-radius: 16px; overflow: hidden;
  box-shadow: var(--shadow), 0 0 40px rgba(0, 229, 255, 0.10);
}
.chat-head {
  display: flex; align-items: center; gap: 10px; padding: 13px 16px;
  border-bottom: 1px solid rgba(168, 85, 247, 0.20);
  background: linear-gradient(90deg, rgba(255, 45, 149, 0.08), rgba(0, 229, 255, 0.07));
}
.chat-head .avatar {
  width: 30px; height: 30px; border-radius: 8px;
  background: var(--grad-cta); display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 14px;
  box-shadow: 0 0 12px rgba(255, 45, 149, 0.45);
}
.chat-head b { font-size: 14px; }
.chat-head span { font-size: 12px; color: var(--cyan); display: inline-flex; align-items: center; gap: 5px; text-shadow: 0 0 8px rgba(0, 229, 255, 0.5); }
.chat-body { padding: 18px 16px; display: grid; gap: 12px; min-height: 300px; }
.chat-msg { display: flex; gap: 10px; align-items: flex-start; animation: msgIn .4s ease both; }
.chat-msg .cm-avatar { width: 30px; height: 30px; flex: none; border-radius: 8px; display: grid; place-items: center; font-size: 13px; font-weight: 700; color: #fff; }
.chat-msg .cm-bubble { background: rgba(30, 30, 58, 0.85); border: 1px solid rgba(168, 85, 247, 0.25); border-radius: 4px 12px 12px 12px; padding: 9px 13px; font-size: 13.5px; max-width: 82%; }
.chat-msg .cm-bubble b { color: var(--text-1); }
.chat-msg .cm-bubble .sys { color: var(--cyan); text-shadow: 0 0 8px rgba(0, 229, 255, 0.5); }
.chat-msg .cm-bubble .calc { color: var(--pink); font-family: var(--font-mono); text-shadow: 0 0 8px rgba(255, 45, 149, 0.5); }
.chat-msg.right { flex-direction: row-reverse; }
.chat-msg.right .cm-bubble {
  border-radius: 12px 4px 12px 12px;
  background: rgba(0, 229, 255, 0.08); border-color: rgba(0, 229, 255, 0.35);
  box-shadow: 0 0 14px rgba(0, 229, 255, 0.08);
}
@keyframes msgIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.chat-msg:nth-child(2) { animation-delay: .5s; }
.chat-msg:nth-child(3) { animation-delay: 1.1s; }
.chat-msg:nth-child(4) { animation-delay: 1.6s; }
.chat-msg:nth-child(5) { animation-delay: 2.1s; }
.chat-msg:nth-child(6) { animation-delay: 2.6s; }
.chat-foot { display: flex; gap: 10px; padding: 12px 16px; border-top: 1px solid rgba(168, 85, 247, 0.20); }
.chat-foot .cf-in {
  flex: 1; height: 36px; border-radius: 8px;
  border: 1px solid rgba(168, 85, 247, 0.30); background: rgba(255, 255, 255, 0.03);
  box-shadow: inset 0 0 12px rgba(0, 0, 0, 0.4);
}
.chat-foot .cf-btn {
  width: 64px; border-radius: 8px;
  background: var(--grad-cta); border: none; color: #fff; font-weight: 700;
  box-shadow: 0 0 14px rgba(255, 45, 149, 0.35);
}

/* ---------- 终端的动画数字（保留类） ---------- */
.tick { display: inline-block; font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* ---------- 滚动显现 ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 返回顶部 ---------- */
.to-top {
  position: fixed; right: 22px; bottom: 22px; z-index: 90;
  width: 44px; height: 44px; border-radius: 12px;
  border: 1px solid rgba(0, 229, 255, 0.45);
  background: rgba(21, 21, 42, 0.92);
  color: var(--cyan);
  display: grid; place-items: center;
  opacity: 0; pointer-events: none; transform: translateY(10px);
  transition: opacity .25s, transform .25s, box-shadow .25s, background .25s;
}
.to-top.show { opacity: 1; pointer-events: auto; transform: none; }
.to-top:hover { background: var(--grad-cta); color: #fff; box-shadow: 0 0 20px rgba(255, 45, 149, 0.5); }

/* ---------- 提示条 ---------- */
.notice {
  display: flex; gap: 12px; align-items: flex-start;
  background: linear-gradient(90deg, rgba(255, 159, 28, 0.08), rgba(255, 45, 149, 0.05));
  border: 1px solid rgba(255, 159, 28, 0.35);
  border-radius: 12px; padding: 14px 18px;
  color: var(--text-2); font-size: 14px;
  box-shadow: 0 0 18px rgba(255, 159, 28, 0.10);
}
.notice svg { flex: none; color: var(--orange); margin-top: 4px; filter: drop-shadow(0 0 8px rgba(255, 159, 28, 0.6)); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
  .feature-grid, .func-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .scene-grid, .snap-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .hero-console { max-width: 560px; }
  .contact-grid { grid-template-columns: 1fr; max-width: 420px; margin-inline: auto; }
}

@media (max-width: 768px) {
  .main-nav {
    position: fixed; inset: 68px 0 auto 0; z-index: 99;
    flex-direction: column; align-items: stretch; gap: 2px;
    background: rgba(10, 10, 20, 0.97);
    border-bottom: 1px solid rgba(168, 85, 247, 0.30);
    padding: 14px 5vw 20px;
    transform: translateY(-110%); transition: transform .28s ease;
  }
  .main-nav.open { transform: none; box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5), 0 0 30px rgba(168, 85, 247, 0.12); }
  .main-nav a { padding: 13px 14px; font-size: 16px; border-radius: 10px; }
  .nav-toggle { display: grid; }
  .header-cta .btn-sm { display: none; }
  .product-grid, .product-grid.cols-3, .product-grid.cols-2 { grid-template-columns: 1fr; }
  .feature-grid, .func-grid, .steps, .scene-grid, .snap-grid, .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .news-card { flex-direction: column; align-items: flex-start; }
  .news-card .nc-date { display: flex; align-items: center; gap: 8px; width: auto; padding: 6px 14px; }
  .compare-table { font-size: 13px; }
  .compare-table th, .compare-table td { padding: 11px 12px; }
  .hero-cta .btn { width: 100%; }
  .bg-scanlines { opacity: .35; }
}

@media (max-width: 420px) {
  .logo-text span { display: none; }
  .product-card .pc-top { flex-wrap: wrap; gap: 8px; }
}

/* ---------- 打印/减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}