/* ============================================================
   帧速大师官网主题 zsd - 深色电竞 SaaS 风格
   以 zhensudashi/html04 官网为模板重构
   ============================================================ */
:root {
  --bg:        #0a0e17;
  --bg-2:      #0d1322;
  --bg-3:      #101a2e;
  --card:      #121b2d;
  --card-2:    #16213a;
  --card-3:    #1b2a4a;
  --line:      rgba(255,255,255,0.08);
  --line-2:    rgba(255,255,255,0.16);
  --txt:       #eaf0fb;
  --txt-2:     #aab4c9;
  --txt-3:     #6f7b93;
  --cyan:      #22d3ee;
  --blue:      #3b82f6;
  --violet:    #8b5cf6;
  --pink:      #ff4d6d;
  --orange:    #ffb020;
  --green:     #34d399;
  --grad:      linear-gradient(120deg, #22d3ee 0%, #3b82f6 55%, #8b5cf6 100%);
  --grad-hot:  linear-gradient(120deg, #22d3ee 0%, #ff4d6d 100%);
  --radius:    16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow:    0 24px 60px -24px rgba(0,0,0,0.6);
  --shadow-2:  0 12px 40px -12px rgba(34,211,238,0.18);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--txt-2);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img, svg { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
::selection { background: rgba(34,211,238,0.3); color: #fff; }

/* ---- 背景 ---- */
.bg-fx {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}
.bg-fx::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60% 50% at 80% -10%, rgba(34,211,238,0.12), transparent 60%),
    radial-gradient(50% 45% at 10% 20%, rgba(59,130,246,0.10), transparent 60%),
    radial-gradient(55% 55% at 50% 110%, rgba(139,92,246,0.10), transparent 60%);
}
.bg-fx::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 75%);
          mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 75%);
}

/* ---- 通用容器 / 区块 ---- */
.container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; position: relative; }
.section-head { text-align: center; max-width: 780px; margin: 0 auto 60px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--cyan);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 7px 16px;
  border: 1px solid rgba(34,211,238,0.3);
  border-radius: 999px;
  background: rgba(34,211,238,0.06);
  margin-bottom: 20px;
}
.eyebrow::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
}
.section-title {
  font-size: clamp(28px, 4.5vw, 46px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--txt);
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.section-sub { font-size: 16px; color: var(--txt-3); line-height: 1.8; }

/* ---- 动画 ---- */
.reveal { opacity: 0; transform: translateY(32px); transition: opacity .8s cubic-bezier(.16,1,.3,1), transform .8s cubic-bezier(.16,1,.3,1); }
.reveal.visible { opacity: 1; transform: none; }
.d1 { transition-delay: .08s; }
.d2 { transition-delay: .16s; }
.d3 { transition-delay: .24s; }
.d4 { transition-delay: .32s; }

/* ============================================================
   按钮
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 15px 30px;
  font-size: 16px;
  font-weight: 700;
  border-radius: 14px;
  transition: all .25s;
}
.btn-primary { color: #04121a; background: var(--grad); box-shadow: 0 14px 34px -12px rgba(34,211,238,0.65); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 20px 44px -12px rgba(34,211,238,0.8); }
.btn-ghost { color: var(--txt); border: 1px solid var(--line-2); background: rgba(255,255,255,0.02); }
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); background: rgba(34,211,238,0.06); }

/* ============================================================
   顶部导航
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  transition: all .35s ease;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.nav.scrolled {
  background: rgba(10,14,23,0.82);
  -webkit-backdrop-filter: blur(18px);
          backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
  padding: 12px 0;
}
.logo { display: inline-flex; align-items: center; gap: 12px; }
.logo-img { height: 40px; width: auto; }
.logo-badge {
  width: 40px; height: 40px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--grad);
  box-shadow: 0 8px 24px -8px rgba(34,211,238,0.5);
  color: #061018;
  font-weight: 900;
  font-size: 19px;
}
.logo-text { line-height: 1.1; }
.logo-name { font-size: 20px; font-weight: 800; color: var(--txt); letter-spacing: .02em; }
.logo-slogan { font-size: 11px; color: var(--txt-3); letter-spacing: .22em; text-transform: uppercase; margin-top: 3px; }
.nav-menu { display: flex; align-items: center; gap: 2px; }
.nav-menu a {
  padding: 9px 15px;
  font-size: 15px;
  color: var(--txt-2);
  border-radius: 10px;
  transition: all .2s;
  white-space: nowrap;
}
.nav-menu a:hover { color: var(--txt); background: rgba(255,255,255,0.06); }
.nav-menu .nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  font-size: 15px;
  font-weight: 700;
  color: #04121a;
  background: var(--grad);
  border-radius: 12px;
  box-shadow: 0 10px 26px -10px rgba(34,211,238,0.6);
  transition: all .25s;
  margin-left: 10px;
}
.nav-menu .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 14px 34px -10px rgba(34,211,238,0.75); }
.nav-burger { display: none; width: 42px; height: 42px; position: relative; background: rgba(255,255,255,0.04); border: 1px solid var(--line-2); border-radius: 10px; }
.nav-burger span {
  position: absolute;
  left: 10px; right: 10px;
  height: 2px;
  border-radius: 2px;
  background: var(--txt);
  transition: all .3s;
}
.nav-burger span:nth-child(1) { top: 14px; }
.nav-burger span:nth-child(2) { top: 20px; }
.nav-burger span:nth-child(3) { top: 26px; }
.nav-burger.open span:nth-child(1) { transform: rotate(45deg); top: 20px; }
.nav-burger.open span:nth-child(2) { opacity: 0; }
.nav-burger.open span:nth-child(3) { transform: rotate(-45deg); top: 20px; }

/* ============================================================
   首屏 Hero
   ============================================================ */
.hero {
  position: relative;
  padding: 168px 0 88px;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--cyan);
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(34,211,238,0.08);
  border: 1px solid rgba(34,211,238,0.25);
  margin-bottom: 26px;
}
.hero-badge .pulse {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 0 rgba(52,211,153,0.6);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(52,211,153,0.5); }
  70% { box-shadow: 0 0 0 9px rgba(52,211,153,0); }
  100% { box-shadow: 0 0 0 0 rgba(52,211,153,0); }
}
.hero-title {
  font-size: clamp(34px, 5vw, 60px);
  font-weight: 900;
  line-height: 1.12;
  color: var(--txt);
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.hero-sub {
  font-size: 17px;
  line-height: 1.9;
  color: var(--txt-2);
  max-width: 560px;
  margin-bottom: 36px;
}
.hero-sub b { color: var(--txt); font-weight: 700; }
.hero-cta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 42px; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 12px; }
.trust-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: var(--txt-3);
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,0.02);
}
.trust-chip svg { width: 15px; height: 15px; stroke: var(--green); fill: none; stroke-width: 2.2; }

/* Hero 右侧面板 */
.hero-panel { position: relative; }
.hero-panel-glow {
  position: absolute;
  inset: -8%;
  background: var(--grad);
  opacity: 0.18;
  filter: blur(70px);
  border-radius: 40px;
  z-index: 0;
}
.panel {
  position: relative;
  z-index: 1;
  background: linear-gradient(160deg, rgba(22,33,58,0.92), rgba(13,19,34,0.95));
  border: 1px solid var(--line-2);
  border-radius: var(--radius-xl);
  padding: 30px;
  box-shadow: var(--shadow), 0 0 0 1px rgba(255,255,255,0.03) inset;
  -webkit-backdrop-filter: blur(8px);
          backdrop-filter: blur(8px);
}
.panel-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 22px;
}
.panel-title { font-size: 14px; font-weight: 700; color: var(--txt); display: flex; align-items: center; gap: 10px; }
.panel-title::before { content: ''; width: 8px; height: 8px; border-radius: 3px; background: var(--grad); }
.panel-live {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  font-weight: 600;
  color: var(--green);
  letter-spacing: .08em;
}
.panel-live::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--green); animation: pulse 2s infinite; }

.fps-rows { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 22px; }
.fps-card {
  position: relative;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 16px;
}
.fps-card .label { font-size: 12px; color: var(--txt-3); margin-bottom: 6px; }
.fps-card .label small { display: block; margin-top: 2px; font-size: 11px; }
.fps-card .value { font-size: 34px; font-weight: 800; line-height: 1; }
.fps-card .fps-unit { font-size: 14px; color: var(--txt-3); font-weight: 600; }
.fps-before .value { color: var(--txt-2); }
.fps-after .value { color: var(--cyan); }
.fps-after { border-color: rgba(34,211,238,0.35); background: rgba(34,211,238,0.06); }
.fps-up {
  position: absolute;
  top: 12px; right: 12px;
  font-size: 12px;
  font-weight: 700;
  color: var(--green);
  background: rgba(52,211,153,0.12);
  border: 1px solid rgba(52,211,153,0.35);
  padding: 3px 9px;
  border-radius: 999px;
}
.bar-chart { display: flex; align-items: flex-end; gap: 8px; height: 120px; margin: 6px 0 8px; }
.bar { flex: 1; border-radius: 8px 8px 4px 4px; position: relative; background: linear-gradient(180deg, var(--cyan), rgba(34,211,238,0.25)); }
.bar.dim { background: linear-gradient(180deg, #2b3a5c, #1b2a4a); opacity: .85; }
.bar .bar-inner {
  position: absolute;
  inset: auto 0 0 0;
  border-radius: 8px 8px 4px 4px;
  background: linear-gradient(180deg, var(--cyan), rgba(34,211,238,0.3));
  animation: grow 1.4s cubic-bezier(.16,1,.3,1) both;
}
.bar.dim .bar-inner { background: linear-gradient(180deg, #3a4f7a, #23334f); animation-delay: .1s; }
@keyframes grow { from { height: 0; } }
.bar-dots { display: flex; justify-content: space-between; font-size: 11px; color: var(--txt-3); }
.bar-dots b { color: var(--cyan); font-weight: 700; }

.panel-foot {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.foot-item { text-align: center; }
.foot-item .v { font-size: 20px; font-weight: 800; color: var(--txt); }
.foot-item .v em { font-style: normal; font-size: 12px; color: var(--cyan); margin-left: 2px; }
.foot-item .k { font-size: 11px; color: var(--txt-3); margin-top: 2px; }

.hero-float {
  position: absolute;
  z-index: 2;
  background: var(--card-2);
  border: 1px solid var(--line-2);
  border-radius: 14px;
  padding: 10px 16px;
  font-size: 13px;
  color: var(--txt-2);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: floaty 5s ease-in-out infinite;
}
.hero-float .ico { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 9px; background: rgba(52,211,153,0.14); color: var(--green); font-weight: 800; }
.hero-float b { display: block; color: var(--txt); font-size: 14px; }
.hero-float.f1 { top: 8%; left: -6%; }
.hero-float.f2 { bottom: 12%; right: -4%; animation-delay: 1.2s; }
.hero-float.f2 .ico { background: rgba(34,211,238,0.14); color: var(--cyan); }
@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

/* ============================================================
   跑马灯
   ============================================================ */
.marquee {
  margin-top: 72px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,0.015);
  overflow: hidden;
  padding: 16px 0;
  white-space: nowrap;
  position: relative;
}
.marquee-track { display: inline-flex; animation: marquee 36s linear infinite; }
.marquee-item {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  font-weight: 600;
  color: var(--txt-3);
  padding: 0 34px;
}
.marquee-item::before { content: '◆'; font-size: 9px; color: var(--cyan); }
.marquee-item.hot { color: var(--txt-2); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ============================================================
   数据条
   ============================================================ */
.stats {
  background: linear-gradient(150deg, var(--bg-3), var(--bg-2));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 54px 0;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; text-align: center; }
.stat .num {
  font-size: clamp(34px, 4.5vw, 52px);
  font-weight: 900;
  line-height: 1;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}
.stat .num sup { font-size: .45em; font-weight: 800; vertical-align: super; margin-left: 2px; }
.stat .lab { font-size: 14px; color: var(--txt-3); }
.stat .lab b { color: var(--txt); font-weight: 700; }

/* ============================================================
   痛点
   ============================================================ */
.pains-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.pain-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  position: relative;
  overflow: hidden;
  transition: all .35s;
}
.pain-card:hover { transform: translateY(-5px); border-color: rgba(255,77,109,0.4); box-shadow: var(--shadow); }
.pain-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--pink), transparent);
  opacity: 0;
  transition: opacity .3s;
}
.pain-card:hover::after { opacity: 1; }
.pain-num { font-size: 13px; font-weight: 800; color: var(--pink); letter-spacing: .12em; margin-bottom: 14px; }
.pain-title { font-size: 19px; font-weight: 700; color: var(--txt); margin-bottom: 10px; }
.pain-desc { font-size: 14px; color: var(--txt-3); line-height: 1.8; }

/* ============================================================
   基础能力
   ============================================================ */
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.cap-card {
  background: linear-gradient(160deg, var(--card-2), var(--card));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  position: relative;
  overflow: hidden;
  transition: all .35s;
}
.cap-card:hover { transform: translateY(-6px); border-color: rgba(34,211,238,0.4); box-shadow: var(--shadow), var(--shadow-2); }
.cap-card .ico {
  width: 52px; height: 52px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: rgba(34,211,238,0.1);
  border: 1px solid rgba(34,211,238,0.28);
  margin-bottom: 20px;
  color: var(--cyan);
}
.cap-card .ico svg { width: 26px; height: 26px; stroke: currentColor; fill: none; stroke-width: 1.7; }
.cap-card:nth-child(2) .ico { background: rgba(59,130,246,0.1); border-color: rgba(59,130,246,0.3); color: var(--blue); }
.cap-card:nth-child(3) .ico { background: rgba(139,92,246,0.1); border-color: rgba(139,92,246,0.3); color: var(--violet); }
.cap-card:nth-child(4) .ico { background: rgba(52,211,153,0.1); border-color: rgba(52,211,153,0.3); color: var(--green); }
.cap-card:nth-child(5) .ico { background: rgba(255,176,32,0.1); border-color: rgba(255,176,32,0.3); color: var(--orange); }
.cap-card:nth-child(6) .ico { background: rgba(139,92,246,0.1); border-color: rgba(139,92,246,0.3); color: var(--violet); }
.cap-title { font-size: 19px; font-weight: 700; color: var(--txt); margin-bottom: 10px; }
.cap-desc { font-size: 14px; color: var(--txt-3); line-height: 1.8; }
.cap-points { margin-top: 16px; padding-top: 16px; border-top: 1px dashed var(--line); display: flex; flex-direction: column; gap: 8px; }
.cap-points li { display: flex; align-items: flex-start; gap: 9px; font-size: 13.5px; color: var(--txt-2); }
.cap-points li::before { content: '✓'; font-weight: 800; color: var(--cyan); flex-shrink: 0; }

/* ============================================================
   九大功能模块
   ============================================================ */
.modules { background: linear-gradient(180deg, transparent, var(--bg-2), transparent); }
.module-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.module-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px 26px;
  display: flex;
  gap: 18px;
  transition: all .35s;
}
.module-card:hover {
  transform: translateY(-5px);
  border-color: rgba(34,211,238,0.4);
  box-shadow: var(--shadow), var(--shadow-2);
}
.module-idx {
  flex-shrink: 0;
  width: 46px; height: 46px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  font-size: 18px;
  font-weight: 900;
  color: #06101c;
  background: var(--grad);
  box-shadow: 0 8px 20px -8px rgba(34,211,238,0.5);
}
.module-card:nth-child(3n+2) .module-idx { background: linear-gradient(120deg, #3b82f6, #8b5cf6); }
.module-card:nth-child(3n+3) .module-idx { background: linear-gradient(120deg, #ff4d6d, #ff8a5c); }
.module-title { font-size: 17.5px; font-weight: 700; color: var(--txt); margin-bottom: 8px; }
.module-desc { font-size: 13.8px; color: var(--txt-3); line-height: 1.8; }
.module-desc b { color: var(--txt-2); font-weight: 600; }

/* ============================================================
   游戏适配
   ============================================================ */
.games-band {
  background: linear-gradient(150deg, var(--bg-3), var(--bg-2));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.game-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.game-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px 24px;
  position: relative;
  overflow: hidden;
  transition: all .35s;
}
.game-card::before {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 120px; height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34,211,238,0.15), transparent 70%);
  opacity: 0;
  transition: opacity .35s;
}
.game-card:hover { transform: translateY(-5px); border-color: rgba(34,211,238,0.4); box-shadow: var(--shadow); }
.game-card:hover::before { opacity: 1; }
.game-flag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  color: var(--cyan);
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(34,211,238,0.08);
  border: 1px solid rgba(34,211,238,0.25);
  margin-bottom: 16px;
}
.game-name { font-size: 19px; font-weight: 800; color: var(--txt); margin-bottom: 10px; }
.game-desc { font-size: 13.5px; color: var(--txt-3); line-height: 1.75; }
.game-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
.game-tags span {
  font-size: 12px;
  color: var(--txt-2);
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
}
.game-more {
  margin-top: 44px;
  text-align: center;
  font-size: 15px;
  color: var(--txt-3);
}
.game-more b { color: var(--txt); }
.game-more-link { color: var(--cyan); font-weight: 700; }

/* ============================================================
   运维方案
   ============================================================ */
.ops-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.ops-card {
  background: linear-gradient(160deg, var(--card-2), var(--card));
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  position: relative;
  overflow: hidden;
}
.ops-card.wide { grid-column: 1 / -1; }
.ops-card .ops-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .1em;
  color: var(--violet);
  padding: 6px 13px;
  border-radius: 999px;
  background: rgba(139,92,246,0.1);
  border: 1px solid rgba(139,92,246,0.3);
  margin-bottom: 18px;
}
.ops-card:nth-child(2) .ops-tag { color: var(--green); background: rgba(52,211,153,0.1); border-color: rgba(52,211,153,0.3); }
.ops-title { font-size: 23px; font-weight: 800; color: var(--txt); margin-bottom: 12px; }
.ops-desc { font-size: 14.5px; color: var(--txt-3); line-height: 1.85; margin-bottom: 20px; }
.ops-list { display: flex; flex-direction: column; gap: 12px; }
.ops-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  color: var(--txt-2);
  line-height: 1.7;
}
.ops-list b { color: var(--txt); }
.ops-list .dot {
  flex-shrink: 0;
  width: 22px; height: 22px;
  margin-top: 2px;
  display: grid;
  place-items: center;
  border-radius: 7px;
  background: rgba(139,92,246,0.12);
  color: var(--violet);
  font-size: 12px;
  font-weight: 800;
}
.ops-card:nth-child(2) .ops-list .dot { background: rgba(52,211,153,0.12); color: var(--green); }
.ops-list-row { flex-direction: row; flex-wrap: wrap; gap: 14px; }
.ops-list-row li { flex: 1; min-width: 240px; }
.ops-note {
  margin-top: 18px;
  padding: 14px 18px;
  border-radius: 12px;
  background: rgba(255,176,32,0.07);
  border: 1px solid rgba(255,176,32,0.25);
  font-size: 13.5px;
  color: var(--txt-2);
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.ops-note b { color: var(--orange); }
.ops-note svg { width: 18px; height: 18px; stroke: var(--orange); fill: none; stroke-width: 2; flex-shrink: 0; margin-top: 3px; }

/* 部署步骤 */
.deploy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.deploy-step { position: relative; padding: 30px 26px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); transition: all .35s; }
.deploy-step:hover { border-color: rgba(34,211,238,0.4); box-shadow: var(--shadow); }
.deploy-num {
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  font-size: 20px;
  font-weight: 900;
  color: var(--cyan);
  background: rgba(34,211,238,0.08);
  border: 1px solid rgba(34,211,238,0.3);
  margin-bottom: 18px;
}
.deploy-title { font-size: 18px; font-weight: 700; color: var(--txt); margin-bottom: 8px; }
.deploy-desc { font-size: 14px; color: var(--txt-3); line-height: 1.8; }
.deploy-step code {
  display: inline-block;
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 13px;
  color: var(--cyan);
  background: rgba(34,211,238,0.07);
  border: 1px solid rgba(34,211,238,0.2);
  padding: 2px 8px;
  border-radius: 6px;
  margin: 0 2px;
}
.deploy-arrow {
  position: absolute;
  top: 50%;
  right: -22px;
  transform: translateY(-50%);
  z-index: 2;
  width: 36px; height: 36px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--bg-3);
  border: 1px solid var(--line-2);
  color: var(--cyan);
  font-size: 16px;
  box-shadow: var(--shadow);
}

/* ============================================================
   安全承诺
   ============================================================ */
.safe-band {
  background: linear-gradient(150deg, var(--bg-3), var(--bg-2));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.safe-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.safe-card {
  text-align: center;
  padding: 36px 26px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: all .35s;
}
.safe-card:hover { transform: translateY(-5px); border-color: rgba(52,211,153,0.4); box-shadow: var(--shadow); }
.safe-ico {
  width: 60px; height: 60px;
  margin: 0 auto 20px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: rgba(52,211,153,0.1);
  border: 1px solid rgba(52,211,153,0.3);
  color: var(--green);
}
.safe-ico svg { width: 30px; height: 30px; stroke: currentColor; fill: none; stroke-width: 1.7; }
.safe-title { font-size: 18px; font-weight: 700; color: var(--txt); margin-bottom: 10px; }
.safe-desc { font-size: 14px; color: var(--txt-3); line-height: 1.8; }

/* ============================================================
   CTA
   ============================================================ */
.cta-section { position: relative; padding: 110px 0; overflow: hidden; }
.cta-glow {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(45% 60% at 50% 0%, rgba(34,211,238,0.14), transparent 60%),
    radial-gradient(40% 50% at 85% 100%, rgba(139,92,246,0.12), transparent 60%);
}
.cta-box {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  background: linear-gradient(160deg, var(--card-2), var(--bg-2));
  border: 1px solid var(--line-2);
  border-radius: var(--radius-xl);
  padding: 72px 48px;
  box-shadow: var(--shadow), 0 0 0 1px rgba(255,255,255,0.03) inset;
}
.cta-box::before {
  content: '';
  position: absolute;
  top: -1px; left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: var(--grad);
  border-radius: 2px;
}
.cta-title { font-size: clamp(28px, 4vw, 44px); font-weight: 900; color: var(--txt); line-height: 1.2; margin-bottom: 18px; letter-spacing: -0.02em; }
.cta-sub { font-size: 16px; color: var(--txt-3); line-height: 1.85; max-width: 620px; margin: 0 auto 34px; }
.cta-sub b { color: var(--txt); }
.cta-contacts { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; margin-bottom: 34px; }
.contact-chip {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 26px;
  background: var(--card);
  border: 1px solid var(--line-2);
  border-radius: 14px;
  transition: all .25s;
}
.contact-chip:hover { border-color: var(--cyan); box-shadow: var(--shadow-2); }
.contact-chip .k { font-size: 13px; color: var(--txt-3); }
.contact-chip .v { font-size: 19px; font-weight: 800; color: var(--txt); letter-spacing: .05em; }
.cta-note { font-size: 13px; color: var(--txt-3); }

/* ============================================================
   FAQ
   ============================================================ */
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color .3s;
}
.faq-item.open { border-color: rgba(34,211,238,0.4); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 24px;
  text-align: left;
  font-size: 16px;
  font-weight: 700;
  color: var(--txt);
}
.faq-q .plus {
  flex-shrink: 0;
  width: 26px; height: 26px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: rgba(34,211,238,0.1);
  color: var(--cyan);
  font-size: 18px;
  transition: transform .3s;
}
.faq-item.open .plus { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s cubic-bezier(.16,1,.3,1);
}
.faq-a p { padding: 0 24px 22px; font-size: 14.5px; color: var(--txt-3); line-height: 1.85; }
.faq-a b { color: var(--cyan); }

/* ============================================================
   博客区
   ============================================================ */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.blog-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all .35s;
  display: flex;
  flex-direction: column;
}
.blog-card:hover { transform: translateY(-5px); border-color: rgba(34,211,238,0.4); box-shadow: var(--shadow); }
.blog-thumb { overflow: hidden; display: block; }
.blog-thumb img { width: 100%; height: 180px; object-fit: cover; transition: transform .4s; }
.blog-card:hover .blog-thumb img { transform: scale(1.05); }
.blog-body { padding: 22px 22px 24px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.blog-meta { display: flex; align-items: center; gap: 10px; font-size: 12px; color: var(--txt-3); }
.blog-cat { color: var(--cyan); font-weight: 600; }
.blog-body h3 { font-size: 16px; line-height: 1.5; }
.blog-body h3 a { color: var(--txt); }
.blog-body h3 a:hover { color: var(--cyan); }
.blog-excerpt { color: var(--txt-3); font-size: 13px; flex: 1; }
.blog-more { font-size: 13px; font-weight: 600; color: var(--cyan); }
.blog-more-wrap { display: flex; justify-content: center; margin-top: 44px; }
.blog-more-wrap .btn { padding: 12px 30px; }

/* ============================================================
   页脚
   ============================================================ */
.footer {
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  padding: 70px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 44px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 26px;
}
.footer-about .logo { margin-bottom: 14px; }
.footer-about p { font-size: 14px; color: var(--txt-3); line-height: 1.8; margin-top: 16px; max-width: 320px; }
.footer-col h4 { font-size: 15px; font-weight: 700; color: var(--txt); margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 11px; }
.footer-col ul a { font-size: 14px; color: var(--txt-3); transition: color .2s; }
.footer-col ul a:hover { color: var(--cyan); }
.footer-contact li { display: flex; align-items: center; gap: 9px; font-size: 14px; color: var(--txt-3); margin-bottom: 12px; }
.footer-contact svg { width: 16px; height: 16px; stroke: var(--cyan); fill: none; stroke-width: 1.8; flex-shrink: 0; }
.footer-contact b { color: var(--txt); font-weight: 700; letter-spacing: .03em; }
.footer-nav { border-top: 1px solid var(--line); padding: 20px 0; }
.footer-menu { display: flex; flex-wrap: wrap; gap: 8px 28px; justify-content: center; }
.footer-menu a { color: var(--txt-3); font-size: 13px; }
.footer-menu a:hover { color: var(--cyan); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12.5px;
  color: var(--txt-3);
}
.footer-bottom .links { display: flex; gap: 20px; }
.footer-bottom a:hover { color: var(--cyan); }

/* ============================================================
   页面横幅（列表 / 文章 / 独立页 / 标签 / 404）
   ============================================================ */
.page-banner {
  position: relative;
  padding: 150px 0 64px;
  overflow: hidden;
  background:
    radial-gradient(700px 400px at 85% -10%, rgba(34,211,238,0.12), transparent 60%),
    radial-gradient(600px 380px at 8% 10%, rgba(139,92,246,0.10), transparent 60%);
}
.page-banner-glow {
  position: absolute;
  top: -180px; left: 50%;
  transform: translateX(-50%);
  width: 820px; height: 420px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(34,211,238,0.13), transparent);
  filter: blur(28px);
  pointer-events: none;
}
.page-banner-inner { position: relative; text-align: center; }
.page-banner .eyebrow { margin-bottom: 18px; }
.page-banner-title {
  font-size: clamp(28px, 4.5vw, 46px);
  font-weight: 900;
  line-height: 1.2;
  color: var(--txt);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.page-banner-sub { font-size: 15px; color: var(--txt-3); line-height: 1.8; max-width: 640px; margin: 0 auto; }
.page-banner-sub b { color: var(--cyan); font-weight: 700; }
.page-banner-meta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 22px;
  margin-top: 22px;
  font-size: 13px;
  color: var(--txt-3);
}
.page-banner-meta .meta-item { display: inline-flex; align-items: center; gap: 7px; }
.page-banner-meta .meta-item svg { stroke: var(--cyan); }
.hashtag { color: var(--cyan); }

/* 文章页横幅 */
.page-banner-article .crumbs {
  justify-content: center;
  margin-bottom: 20px;
  font-size: 13px;
}
.page-banner-article .page-banner-title {
  font-size: clamp(26px, 4vw, 42px);
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}

/* 404 横幅 */
.page-banner-error { padding-top: 130px; }
.page-banner-error .error-code { font-size: 96px; font-weight: 900; line-height: 1; margin-bottom: 6px; }
.page-banner-error .code-glitch {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  letter-spacing: 4px;
  text-shadow: 0 0 60px rgba(34,211,238,0.3);
}
.error-search { max-width: 480px; margin: -8px auto 90px; padding: 0 24px; text-align: center; }
.error-search p { color: var(--txt-3); font-size: 14px; margin-bottom: 12px; }

/* ============================================================
   CMS 页面双栏布局（详情 / 列表 / 页面）
   ============================================================ */
.page-wrap { padding: 56px 0 80px; min-height: 60vh; }
.content-main { width: calc(100% - 330px); max-width: 100%; }
.content-side { width: 300px; flex: none; }
.page-wrap .container { display: flex; gap: 30px; align-items: flex-start; }

/* ---------- 面包屑 ---------- */
.crumbs { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 13px; color: var(--txt-3); margin-bottom: 18px; }
.crumbs a { color: var(--txt-3); }
.crumbs a:hover { color: var(--cyan); }
.crumbs .sep { color: rgba(139,155,180,0.5); }
.crumbs .current { color: var(--txt-2); }

/* ---------- 文章卡片 ---------- */
.post-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden; margin-bottom: 24px;
}
.post-card-row {
  display: flex; gap: 0; padding: 0;
  transition: all .35s;
  position: relative;
}
.post-card-row:hover { border-color: rgba(34,211,238,0.4); box-shadow: var(--shadow), var(--shadow-2); transform: translateY(-3px); }
.post-card-row .card-cover { width: 280px; flex: none; overflow: hidden; position: relative; }
.post-card-row .card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.post-card-row:hover .card-cover img { transform: scale(1.06); }
.post-card-row .card-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 60%, rgba(18,27,45,0.6));
  pointer-events: none;
}
.card-cover-arrow {
  position: absolute;
  top: 50%; right: 18px;
  transform: translateY(-50%);
  z-index: 2;
  width: 40px; height: 40px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--grad);
  color: #04121a;
  font-weight: 900;
  opacity: 0;
  transition: all .35s;
}
.post-card-row:hover .card-cover-arrow { opacity: 1; right: 22px; }
.post-card-row .card-body { padding: 26px 28px; flex: 1; display: flex; flex-direction: column; }
.card-meta { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; font-size: 13px; color: var(--txt-3); margin-bottom: 12px; }
.card-meta .chip {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--cyan);
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(34,211,238,0.08);
  border: 1px solid rgba(34,211,238,0.25);
  transition: all .2s;
}
.card-meta .chip:hover { background: rgba(34,211,238,0.16); border-color: rgba(34,211,238,0.5); }
.meta-time, .meta-views { display: inline-flex; align-items: center; gap: 6px; }
.meta-time svg, .meta-views svg { flex: none; stroke: var(--txt-3); }
.card-title { font-size: 20px; font-weight: 700; margin-bottom: 10px; line-height: 1.5; }
.card-title a { color: var(--txt); }
.card-title a:hover { color: var(--cyan); }
.card-excerpt { color: var(--txt-3); font-size: 14px; flex: 1; }
.card-readmore {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--cyan);
  transition: gap .25s;
}
.card-readmore svg { flex: none; }
.card-readmore:hover { gap: 12px; }
.post-cover img { width: 100%; max-height: 440px; object-fit: cover; }
.meta-item { display: inline-flex; align-items: center; gap: 6px; }
.meta-item svg { flex: none; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.meta-cat { color: var(--cyan); }
.meta-cat:hover { color: #67e8f9; }

/* ---------- 文章正文排版 ---------- */
.post-body { padding: 4px 28px 28px; font-size: 15px; color: var(--txt-2); }
.post-body h2, .post-body h3, .post-body h4 {
  color: var(--txt); margin: 28px 0 14px; line-height: 1.45; font-weight: 700; scroll-margin-top: 90px;
}
.post-body h2 { font-size: 23px; padding-left: 14px; border-left: 4px solid var(--cyan); }
.post-body h3 { font-size: 19px; }
.post-body h4 { font-size: 16px; }
.post-body p { margin-bottom: 16px; }
.post-body a { color: var(--cyan); text-decoration: underline; text-underline-offset: 3px; }
.post-body ul, .post-body ol { margin: 0 0 16px 4px; padding-left: 22px; }
.post-body ul { list-style: disc; }
.post-body ol { list-style: decimal; }
.post-body li { margin-bottom: 6px; }
.post-body blockquote {
  margin: 20px 0; padding: 14px 20px; border-left: 4px solid var(--cyan);
  background: rgba(34,211,238,0.07); border-radius: 0 10px 10px 0; color: var(--txt-2);
}
.post-body img { border-radius: 10px; margin: 18px auto; }
.post-body img.aligncenter { display: block; margin-left: auto; margin-right: auto; }
.post-body img.alignleft { float: left; margin-right: 18px; }
.post-body img.alignright { float: right; margin-left: 18px; }
.post-body code {
  background: rgba(148,163,184,0.14); color: #7dd3fc; padding: 2px 7px;
  border-radius: 6px; font-size: 13px; font-family: Consolas, Monaco, monospace;
}
.post-body pre {
  background: #0b1120; border: 1px solid var(--line); border-radius: 10px;
  padding: 18px; overflow-x: auto; margin: 18px 0;
}
.post-body pre code { background: none; color: var(--txt-2); padding: 0; font-size: 13px; }
.post-body table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 14px; }
.post-body th, .post-body td { border: 1px solid var(--line); padding: 10px 14px; text-align: left; }
.post-body th { background: rgba(148,163,184,0.1); color: var(--txt); }
.post-body tr:nth-child(even) { background: rgba(148,163,184,0.04); }
.post-body hr { border: none; border-top: 1px solid var(--line); margin: 26px 0; }

/* ---------- 标签 / 上一篇下一篇 / 相关 ---------- */
.post-tags { display: flex; flex-wrap: wrap; gap: 10px; padding: 4px 28px 24px; border-top: 1px solid var(--line); margin: 0 0 4px; padding-top: 24px; }
.tag {
  display: inline-block; padding: 5px 13px; border-radius: 999px; font-size: 12px;
  color: var(--txt-2); background: rgba(148,163,184,0.1); border: 1px solid var(--line);
  transition: all .2s;
}
.tag:hover { color: var(--cyan); border-color: rgba(34,211,238,0.4); background: rgba(34,211,238,0.08); }
.post-nav {
  display: flex; justify-content: space-between; gap: 16px;
  border-top: 1px solid var(--line); margin: 0 28px; padding: 22px 0;
}
.nav-prev, .nav-next { display: flex; flex-direction: column; gap: 4px; max-width: 46%; }
.nav-next { align-items: flex-end; text-align: right; }
.nav-label { font-size: 12px; color: var(--txt-3); }
.post-nav a { color: var(--txt-2); font-size: 14px; transition: color .2s; }
.post-nav a:hover { color: var(--cyan); }
.post-related { padding: 0 28px 28px; }
.related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 14px; }
.related-card {
  display: flex;
  gap: 14px;
  background: var(--card-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  transition: all .25s;
  align-items: center;
}
.related-card:hover { border-color: rgba(34,211,238,0.4); transform: translateY(-2px); box-shadow: var(--shadow-2); }
.related-thumb { width: 84px; height: 60px; flex: none; overflow: hidden; border-radius: 8px; }
.related-thumb img { width: 100%; height: 100%; object-fit: cover; }
.related-body { flex: 1; display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.related-title { font-size: 14px; color: var(--txt-2); line-height: 1.5; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.related-card:hover .related-title { color: var(--cyan); }
.related-card time { font-size: 12px; color: var(--txt-3); }

/* ---------- 标签云页 ---------- */
.tag-cloud-page { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; padding: 30px 20px; }
.tag-cloud-page .tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 14px;
  border-radius: 999px;
  transition: all .25s;
}
.tag-cloud-page .tag em {
  font-style: normal;
  font-size: 11px;
  color: var(--cyan);
  background: rgba(34,211,238,0.1);
  padding: 2px 8px;
  border-radius: 999px;
}
.tag-cloud-page .tag-scale-3 { font-size: 18px; padding: 13px 26px; background: rgba(34,211,238,0.1); border-color: rgba(34,211,238,0.35); }
.tag-cloud-page .tag-scale-2 { font-size: 15px; padding: 11px 22px; }
.tag-cloud-page .tag-scale-1 { font-size: 13px; padding: 9px 18px; color: var(--txt-3); }

/* ---------- 列表页标题区 ---------- */
.archive-header { margin-bottom: 28px; }
.archive-title { font-size: 30px; font-weight: 800; color: var(--txt); margin-bottom: 8px; line-height: 1.3; }
.archive-count { color: var(--txt-3); font-size: 13px; margin-bottom: 6px; }
.archive-desc { color: var(--txt-3); font-size: 14px; }
.archive-list { display: flex; flex-direction: column; gap: 20px; }
.card-title { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.card-title a { color: var(--txt); }
.card-title a:hover { color: var(--cyan); }
.card-meta { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: 13px; color: var(--txt-3); margin-bottom: 10px; }
.card-meta .meta-cat { color: var(--cyan); }
.card-excerpt { color: var(--txt-3); font-size: 14px; }

/* ---------- 分页 ---------- */
.archive-pagination { display: flex; align-items: center; justify-content: center; gap: 14px; margin-top: 34px; }
.page-btn {
  padding: 9px 20px; border-radius: 10px; font-size: 14px;
  border: 1px solid var(--line); color: var(--txt-2); background: var(--card);
  transition: all .2s;
}
.page-btn:hover { color: var(--txt); border-color: rgba(34,211,238,0.5); }
.page-btn.disabled { opacity: 0.4; pointer-events: none; }
.page-info { color: var(--txt-3); font-size: 14px; }

/* ---------- 空状态 ---------- */
.archive-empty { text-align: center; padding: 60px 20px; color: var(--txt-3); }
.empty-icon { font-size: 44px; margin-bottom: 12px; }
.archive-empty p { margin-bottom: 6px; }
.empty-hint a { color: var(--cyan); }

/* ---------- 侧边栏 ---------- */
.widget {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px; margin-bottom: 20px;
}
.widget-title {
  font-size: 15px; font-weight: 700; color: var(--txt); margin-bottom: 16px;
  padding-bottom: 10px; border-bottom: 1px solid var(--line); position: relative;
}
.widget-title::after { content: ""; position: absolute; bottom: -1px; left: 0; width: 42px; height: 2px; background: var(--grad); }
.widget-list { display: flex; flex-direction: column; gap: 14px; }

/* 最新文章（带缩略图） */
.widget-post { display: flex; gap: 12px; align-items: flex-start; }
.widget-thumb { width: 64px; height: 48px; flex: none; overflow: hidden; border-radius: 8px; border: 1px solid var(--line); }
.widget-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.widget-post:hover .widget-thumb img { transform: scale(1.1); }
.widget-post-body { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 3px; }
.widget-post-title {
  font-size: 13.5px;
  color: var(--txt-2);
  line-height: 1.5;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.widget-post:hover .widget-post-title, .widget-rank:hover .widget-post-title { color: var(--cyan); }
.widget-date, .widget-views { display: block; font-size: 12px; color: var(--txt-3); }

/* 热门文章（带排名） */
.widget-rank {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 4px 10px;
  align-items: center;
}
.rank-num {
  grid-row: 1 / 3;
  width: 26px; height: 26px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 800;
  color: var(--txt-2);
  background: rgba(148,163,184,0.12);
  border: 1px solid var(--line);
}
.rank-num.rank-1 { color: #04121a; background: var(--grad); border-color: transparent; box-shadow: 0 6px 16px -6px rgba(34,211,238,0.6); }
.rank-num.rank-2 { color: var(--cyan); background: rgba(34,211,238,0.12); border-color: rgba(34,211,238,0.35); }
.rank-num.rank-3 { color: var(--violet); background: rgba(139,92,246,0.12); border-color: rgba(139,92,246,0.35); }
.widget-rank .widget-post-title { -webkit-line-clamp: 1; }
.widget-views { color: var(--cyan); }

/* TOC 目录 */
.widget-toc .toc-list { display: flex; flex-direction: column; gap: 8px; max-height: 420px; overflow-y: auto; }
.widget-toc .toc-list a {
  display: block;
  color: var(--txt-2);
  font-size: 13.5px;
  line-height: 1.5;
  padding: 4px 0 4px 14px;
  border-left: 2px solid var(--line);
  transition: all .2s;
}
.widget-toc .toc-list a:hover { color: var(--cyan); border-left-color: var(--cyan); padding-left: 18px; }
.widget-toc .toc-level-2 a { font-weight: 600; color: var(--txt); }
.widget-toc .toc-level-3 a { padding-left: 26px; }
.widget-cat-list, .widget-archive-list { display: flex; flex-direction: column; gap: 10px; }
.widget-cat-list li, .widget-archive-list li {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 14px; padding-bottom: 8px; border-bottom: 1px dashed var(--line);
}
.widget-cat-list li:last-child, .widget-archive-list li:last-child { border-bottom: none; padding-bottom: 0; }
.widget-cat-list a, .widget-archive-list a { color: var(--txt-2); }
.widget-cat-list a:hover, .widget-archive-list a:hover { color: var(--cyan); }
.cat-count, .archive-count { font-size: 12px; color: var(--txt-3); }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------- 搜索框 ---------- */
.search-form { display: flex; align-items: center; background: var(--bg-2); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; transition: border-color .2s; }
.search-form:focus-within { border-color: rgba(34,211,238,0.5); }
.search-form input { flex: 1; background: none; border: none; outline: none; color: var(--txt); font-size: 14px; padding: 11px 14px; font-family: inherit; }
.search-form button { background: none; border: none; color: var(--txt-3); padding: 0 14px; display: flex; }
.search-form button:hover { color: var(--cyan); }
.search-form svg { fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.widget-search { background: none; border: none; padding: 0; }
.widget-search .search-form { background: var(--card); }

/* ============================================================
   评论
   ============================================================ */
.comment-feedback { padding: 13px 16px; border-radius: 10px; margin-bottom: 18px; font-size: 14px; display: flex; justify-content: space-between; align-items: center; }
.feedback-success { background: rgba(52,211,153,0.1); border: 1px solid rgba(52,211,153,0.4); color: var(--green); }
.feedback-error { background: rgba(255,77,109,0.1); border: 1px solid rgba(255,77,109,0.4); color: var(--pink); }
.feedback-pending, .feedback-spam { background: rgba(251,191,36,0.1); border: 1px solid rgba(251,191,36,0.4); color: var(--orange); }
.feedback-close { background: none; border: none; color: inherit; font-size: 18px; opacity: 0.7; }
.feedback-close:hover { opacity: 1; }

.comment-list { margin-bottom: 26px; display: flex; flex-direction: column; gap: 16px; }
.comment-item { display: flex; gap: 14px; }
.comment-avatar {
  width: 40px; height: 40px; border-radius: 12px; flex: none;
  display: flex; align-items: center; justify-content: center;
  background: var(--grad); color: #fff; font-weight: 700; font-size: 15px;
  box-shadow: 0 8px 20px -8px rgba(34,211,238,0.5);
}
.avatar-sm { width: 32px; height: 32px; font-size: 12px; border-radius: 9px; }
.comment-body { flex: 1; }
.comment-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; font-size: 13px; flex-wrap: wrap; }
.comment-author { color: var(--txt); font-weight: 600; }
.comment-date { color: var(--txt-3); font-size: 12px; }
.comment-reply {
  color: var(--cyan);
  font-size: 12px;
  padding: 3px 12px;
  border-radius: 999px;
  border: 1px solid rgba(34,211,238,0.25);
  transition: all .2s;
}
.comment-reply:hover { background: rgba(34,211,238,0.1); }
.comment-content { color: var(--txt-2); font-size: 14px; background: var(--card-2); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; line-height: 1.8; }
.comment-children { margin-top: 14px; display: flex; flex-direction: column; gap: 14px; padding-left: 24px; border-left: 2px solid rgba(34,211,238,0.15); }
.no-comments {
  color: var(--txt-3);
  font-size: 14px;
  margin-bottom: 22px;
  padding: 20px;
  text-align: center;
  border: 1px dashed var(--line);
  border-radius: 12px;
}

/* ---------- 评论表单 ---------- */
.post-comments { padding: 0 28px 28px; }
.post-comments .widget-title { margin-top: 28px; }
.comment-form { display: flex; flex-direction: column; gap: 14px; }
.form-row { display: flex; gap: 12px; }
.form-row input, .comment-form textarea {
  width: 100%; background: var(--bg-2); border: 1px solid var(--line); border-radius: 12px;
  color: var(--txt); font-size: 14px; padding: 12px 16px; font-family: inherit; outline: none; transition: all .2s;
}
.form-row input:focus, .comment-form textarea:focus { border-color: rgba(34,211,238,0.5); box-shadow: 0 0 0 3px rgba(34,211,238,0.08); }
.comment-form textarea { resize: vertical; min-height: 110px; }
.form-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.form-hint { font-size: 12px; color: var(--txt-3); }

/* ============================================================
   404 页面
   ============================================================ */
.error-page { padding: 150px 0 100px; text-align: center; min-height: 60vh; }
.error-code { font-size: 110px; font-weight: 800; line-height: 1; margin-bottom: 20px; }
.code-glitch {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent; letter-spacing: 4px;
  text-shadow: 0 0 60px rgba(34,211,238,0.3);
}
.error-title { font-size: 28px; color: var(--txt); margin-bottom: 12px; }
.error-desc { color: var(--txt-3); margin-bottom: 28px; }
.error-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }
.error-search { max-width: 420px; margin: 0 auto; }
.error-search p { color: var(--txt-3); font-size: 14px; margin-bottom: 10px; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; gap: 56px; }
  .hero-sub { max-width: none; }
  .hero-float.f1 { left: 2%; top: -2%; }
  .hero-float.f2 { right: 2%; }
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .module-grid { grid-template-columns: repeat(2, 1fr); }
  .game-grid { grid-template-columns: repeat(2, 1fr); }
  .pains-grid { grid-template-columns: repeat(2, 1fr); }
  .safe-grid { grid-template-columns: repeat(2, 1fr); }
  .ops-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .page-wrap .container { flex-direction: column; }
  .content-main { width: 100%; }
  .content-side { width: 100%; }
  .nav-menu {
    position: fixed;
    top: 70px; left: 12px; right: 12px;
    flex-direction: column;
    align-items: stretch;
    background: rgba(13,19,34,0.97);
    -webkit-backdrop-filter: blur(20px);
            backdrop-filter: blur(20px);
    border: 1px solid var(--line-2);
    border-radius: 18px;
    padding: 16px;
    gap: 4px;
    opacity: 0;
    transform: translateY(-16px);
    pointer-events: none;
    transition: all .35s cubic-bezier(.16,1,.3,1);
    box-shadow: var(--shadow);
  }
  .nav-menu.open { opacity: 1; transform: none; pointer-events: auto; }
  .nav-menu a { padding: 13px 16px; font-size: 16px; }
  .nav-menu .nav-cta { margin: 8px 0 0; justify-content: center; }
  .nav-burger { display: block; }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }
  .hero { padding: 132px 0 60px; }
  .page-banner { padding: 120px 0 48px; }
  .page-banner-title { font-size: 28px; }
  .page-banner-article .crumbs { font-size: 12px; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .btn { width: 100%; }
  .cap-grid, .module-grid, .game-grid, .pains-grid, .safe-grid, .blog-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .deploy-grid { grid-template-columns: 1fr; }
  .deploy-arrow { display: none; }
  .cta-box { padding: 48px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .fps-rows { grid-template-columns: 1fr; }
  .form-row { flex-direction: column; }
  .post-card-row { flex-direction: column; }
  .post-card-row .card-cover { width: 100%; height: 200px; }
  .post-card-row .card-cover::after { background: linear-gradient(0deg, rgba(18,27,45,0.55), transparent 55%); }
  .card-cover-arrow { top: auto; bottom: 16px; right: 16px; transform: none; }
  .post-title { font-size: 22px; }
  .post-body { padding: 0 18px 20px; }
  .post-header { padding: 20px 18px 14px; }
  .post-nav { margin: 0 18px; }
  .post-related, .post-tags { padding-left: 18px; padding-right: 18px; }
  .post-comments { padding: 0 18px 20px; }
  .page-wrap { padding: 40px 0 50px; }
  .related-grid { grid-template-columns: 1fr; }
}

@media (max-width: 420px) {
  .stats-grid { grid-template-columns: 1fr; }
  .game-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}