/* 主页背景：暗夜星空 + 星河 + 海里跃鱼化鲲 */
html, body { background: transparent !important; }
.landing-body { background: transparent !important; }

/* ======================== 深空星空背景 ======================== */
.ocean-bg {
  position: fixed; inset: 0; z-index: -1; overflow: hidden;
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%,  rgba(90, 60, 160, 0.22), transparent 65%),
    radial-gradient(ellipse 40% 35% at 85% 18%, rgba(150, 80, 200, 0.18), transparent 60%),
    radial-gradient(ellipse 50% 40% at 12% 22%, rgba(40, 120, 200, 0.14), transparent 60%),
    linear-gradient(180deg,
      #05030f 0%,
      #0a0820 25%,
      #070a24 55%,
      #040618 82%,
      #02020a 100%);
}

/* 横跨天际的银河光带 */
.ocean-bg::before {
  content: '';
  position: absolute;
  top: 5%; left: -30%; right: -30%;
  height: 380px;
  background:
    linear-gradient(90deg,
      transparent 0%,
      rgba(180, 120, 240, 0.06) 12%,
      rgba(120, 80, 220, 0.18) 28%,
      rgba(180, 140, 255, 0.28) 42%,
      rgba(100, 200, 240, 0.18) 55%,
      rgba(180, 120, 240, 0.12) 68%,
      transparent 100%);
  filter: blur(50px);
  border-radius: 50%;
  transform: rotate(-6deg);
  animation: nebulaDrift 18s linear infinite;
  pointer-events: none;
}
@keyframes nebulaDrift {
  0%   { transform: translateX(-6%) rotate(-6deg); opacity: 0.9; }
  50%  { opacity: 1; }
  100% { transform: translateX(6%) rotate(-6deg); opacity: 0.9; }
}

/* 第二层星云呼吸 */
.ocean-bg::after {
  content: '';
  position: absolute; top: -20%; left: 30%; right: -10%; height: 50%;
  background: radial-gradient(ellipse at center, rgba(160, 100, 230, 0.12), transparent 70%);
  filter: blur(60px);
  animation: nebulaBreath 10s ease-in-out infinite;
  pointer-events: none;
}
@keyframes nebulaBreath {
  0%, 100% { opacity: 0.7; transform: translateX(0); }
  50%      { opacity: 1;   transform: translateX(-2%); }
}

/* ---------- 星空粒子层（220 颗，JS 生成，4 档大小亮度） ---------- */
.stars { position: absolute; inset: 0; pointer-events: none; }
.stars i {
  position: absolute; border-radius: 50%;
  animation: twinkle var(--tw, 3s) ease-in-out infinite;
  animation-delay: var(--td, 0s);
}
.stars i.big {
  box-shadow: 0 0 6px 1px rgba(255,255,255,0.8), 0 0 18px 3px rgba(180,210,255,0.4);
}
.stars i.mid {
  box-shadow: 0 0 4px 0.5px rgba(220,230,255,0.7), 0 0 10px 2px rgba(160,180,230,0.3);
}
.stars i.hot {
  box-shadow: 0 0 8px 1px rgba(255,220,160,0.8), 0 0 20px 4px rgba(255,180,100,0.35);
}
@keyframes twinkle {
  0%, 100% { opacity: 0.3; transform: scale(0.85); }
  50%      { opacity: 1;   transform: scale(1.25); }
}

/* ---------- 海面 ---------- */
.sea-surface {
  position: absolute; left: 0; right: 0; bottom: 0; height: 38%; overflow: hidden;
  background:
    linear-gradient(180deg,
      rgba(0,0,0,0) 0%,
      rgba(20,10,50,0.45) 30%,
      rgba(8,5,25,0.85) 70%,
      rgba(2,1,10,1) 100%);
}
.sea-surface::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(20% 12% at 20% 0%, rgba(200,210,255,0.25), transparent 60%),
    radial-gradient(15% 10% at 65% 0%, rgba(180,140,255,0.2), transparent 60%),
    radial-gradient(18% 10% at 88% 0%, rgba(255,200,140,0.18), transparent 60%);
  filter: blur(12px); opacity: 0.7;
  animation: reflectionShimmer 6s ease-in-out infinite;
}
@keyframes reflectionShimmer {
  0%, 100% { opacity: 0.5; transform: translateY(0) scaleY(1); }
  50%      { opacity: 0.85; transform: translateY(-2px) scaleY(1.02); }
}
.wave { position: absolute; left: -10%; right: -10%; bottom: 0; height: 140px; border-radius: 50% / 70%; opacity: 0.6; }
.wave-1 {
  bottom: 55%; height: 90px;
  background: radial-gradient(120% 100% at 50% 0%, rgba(140,170,230,0.10), transparent 65%);
  animation: waveX 18s linear infinite, waveY 7s ease-in-out infinite;
}
.wave-2 {
  bottom: 25%; height: 120px;
  background: radial-gradient(140% 100% at 50% 0%, rgba(100,130,200,0.16), transparent 60%);
  animation: waveX2 24s linear infinite, waveY 9s ease-in-out infinite; opacity: 0.8;
}
.wave-3 {
  bottom: 0%; height: 100px;
  background: radial-gradient(100% 100% at 50% 0%, rgba(10,8,30,0.92), rgba(2,1,10,1));
  animation: waveX3 13s linear infinite;
}
.wave-4 { display: none; }
@keyframes waveX  { 0% { transform: translateX(-8%); } 100% { transform: translateX(8%); } }
@keyframes waveX2 { 0% { transform: translateX(10%); } 100% { transform: translateX(-10%); } }
@keyframes waveX3 { 0% { transform: translateX(-15%); } 100% { transform: translateX(15%); } }
@keyframes waveY  { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }

/* ---------- 鲲容器 ---------- */
.leaper {
  position: absolute; left: 50%; top: 52%;
  width: min(1200px, 92vw); height: 320px;
  transform: translate(-50%, -50%);
  pointer-events: none; z-index: 5;
}

/* Canvas 鲲容器：绝对填满 leaper */
.leaper .kun-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: 2;
  /* 让 canvas 有发光 */
  filter:
    drop-shadow(0 0 30px rgba(140, 200, 255, 0.5))
    drop-shadow(0 0 60px rgba(180, 140, 255, 0.25));
}

/* 鲲图像（已废弃，用 canvas 取代） */
.kun-img { display: none; }
.kun-glide { display: none; }

/* 鲲的旋转光环（固定尺寸，居中背景装饰） */
.kun-ring {
  position: absolute; left: 50%; top: 50%;
  width: 420px; height: 420px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid rgba(160, 200, 255, 0.15);
  pointer-events: none; z-index: 1;
  animation: ringSpin 16s linear infinite;
}
.kun-ring::before {
  content: ''; position: absolute; inset: -6%;
  border-radius: 50%;
  border: 1px dashed rgba(200, 160, 255, 0.18);
  animation: ringSpin 22s linear infinite reverse;
}
@keyframes ringSpin {
  0%   { transform: translate(-50%, -50%) rotate(0deg); }
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* 鲲周围的光点（固定尺寸散布） */
.kun-particles {
  position: absolute; left: 50%; top: 50%;
  width: 480px; height: 480px;
  transform: translate(-50%, -50%);
}
.kun-particles i {
  position: absolute;
  left: calc(50% + var(--px, 30%));
  top:  calc(50% + var(--py, -20%));
  width: 3px; height: 3px;
  background: #e8f4ff;
  border-radius: 50%;
  box-shadow: 0 0 6px 1px rgba(180,220,255,0.9), 0 0 14px 2px rgba(200,160,255,0.4);
  animation: particleTwinkle var(--pd, 2.5s) ease-in-out infinite;
  animation-delay: var(--dd, 0s);
}
@keyframes particleTwinkle {
  0%, 100% { opacity: 0.2; transform: scale(0.6); }
  50%      { opacity: 1;   transform: scale(1.4); }
}

/* 鲲运动由 canvas JS 控制（从右向左水平游动），不再使用 CSS 跃出关键帧 */

/* ---------- 气泡（鲲吐的星光） ---------- */
.bubbles { position: absolute; inset: 0; pointer-events: none; }
.bubbles span {
  position: absolute; bottom: 38%; left: var(--x);
  width: var(--s); height: var(--s); border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.75), rgba(180,220,255,0.4) 40%, rgba(160,120,230,0.15) 70%, transparent 100%);
  box-shadow: 0 0 6px rgba(180,220,255,0.5);
  animation: bubbleRise var(--d) ease-in-out infinite;
  animation-delay: calc(var(--d) * -0.7);
}
@keyframes bubbleRise {
  0%   { transform: translateY(0) translateX(0); opacity: 0; }
  10%  { opacity: 0.9; }
  50%  { transform: translateY(-50vh) translateX(calc(var(--s) * -5)); }
  90%  { opacity: 0.4; }
  100% { transform: translateY(-95vh) translateX(calc(var(--s) * 6)); opacity: 0; }
}

/* 破水涟漪 */
.ripple {
  position: absolute; left: 50%; top: 68%;
  width: 60px; height: 60px; border-radius: 50%;
  border: 1.5px solid rgba(180,220,255,0.65);
  box-shadow: 0 0 14px rgba(140,200,255,0.4) inset;
  transform: translate(-50%, -50%) scale(0); pointer-events: none;
}
.ripple-1 { animation: ripplePulse 26s ease-out infinite; }
.ripple-2 { animation: ripplePulse 26s ease-out infinite; animation-delay: 0.5s; border-color: rgba(200,160,255,0.5); }
.ripple-3 { animation: ripplePulse 26s ease-out infinite; animation-delay: 1s; border-color: rgba(140,160,230,0.35); }
@keyframes ripplePulse {
  0%, 20%  { transform: translate(-50%, -50%) scale(0);   opacity: 0; }
  22%      { transform: translate(-50%, -50%) scale(0.4); opacity: 0.95; }
  50%      { transform: translate(-50%, -50%) scale(6);   opacity: 0; }
  100%     { transform: translate(-50%, -50%) scale(6);   opacity: 0; }
}

/* ======================================================= */
/* ============ 板块毛玻璃半透明 + Hero + Sections ========== */
/* ======================================================= */

.nav {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(22px) saturate(1.3);
  -webkit-backdrop-filter: blur(22px) saturate(1.3);
  background: rgba(5, 10, 20, 0.35);
  border-bottom: 1px solid rgba(180, 220, 240, 0.12);
}
.nav-inner { height: 66px; display: flex; align-items: center; gap: 28px; }
.nav-links { display: flex; gap: 24px; margin-left: 14px; }
.nav-links a { font-size: 13.5px; color: var(--text-dim); transition: color 0.16s; }
.nav-links a:hover { color: #fff; }
.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.nav-user { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--text-dim); }

.hero { padding: 108px 0 64px; position: relative; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 64px; align-items: center; position: relative; z-index: 1; }
.hero-badge {
  background: rgba(124, 92, 255, 0.08);
  border: 1px solid rgba(126, 200, 227, 0.22);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.06);
}
.hero-badge .pill { background: linear-gradient(120deg, #7c5cff, #22d3ee); color: #fff; font-size: 10.5px; font-weight: 700; padding: 2px 8px; border-radius: 999px; letter-spacing: 0.5px; }
.hero h1 { font-size: 64px; line-height: 1.1; letter-spacing: -2px; font-weight: 800; }
.hero h1 .gradient-text {
  display: inline-block;
  background: linear-gradient(115deg, #7ee8ff 0%, #a78bfa 45%, #f0d080 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  filter: drop-shadow(0 0 24px rgba(140, 160, 255, 0.35));
}
.hero-sub { margin-top: 24px; font-size: 16px; color: var(--text-dim); max-width: 520px; line-height: 1.9; }
.hero-actions { margin-top: 36px; display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.hero-meta { margin-top: 30px; display: flex; gap: 28px; flex-wrap: wrap; }
.hero-meta div { font-size: 12.5px; color: var(--text-mute); display: flex; align-items: center; gap: 7px; }
.hero-meta svg { color: #7ee8ff; width: 15px; height: 15px; }

/* Hero mock */
.mock {
  position: relative;
  background: rgba(8, 15, 28, 0.45);
  border: 1px solid rgba(180, 220, 240, 0.18);
  border-radius: 22px;
  padding: 16px;
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(180, 220, 240, 0.08);
}
.mock-top { display: flex; align-items: center; gap: 8px; padding: 2px 4px 12px; }
.mock-dots { display: flex; gap: 5px; }
.mock-dots i { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,0.16); }
.mock-dots i:first-child { background: #ff5f57; }
.mock-dots i:nth-child(2) { background: #febc2e; }
.mock-dots i:nth-child(3) { background: #28c840; }
.mock-tab { margin-left: 8px; font-size: 11px; color: var(--text-mute); }
.mock-live { margin-left: auto; display: flex; align-items: center; gap: 5px; font-size: 10.5px; color: #6ee7b7; }
.mock-live i { width: 6px; height: 6px; border-radius: 50%; background: #34d399; box-shadow: 0 0 0 4px rgba(52, 211, 153, 0.15); }
.mock-stage {
  position: relative; aspect-ratio: 16 / 10; border-radius: 14px; overflow: hidden;
  background:
    radial-gradient(120% 90% at 20% 10%, rgba(124, 92, 255, 0.5), transparent 60%),
    radial-gradient(100% 90% at 85% 80%, rgba(34, 211, 238, 0.36), transparent 55%),
    linear-gradient(150deg, #1c1f35, #0b0d17);
  border: 1px solid rgba(255, 255, 255, 0.06);
  display: grid; place-items: center;
}
.mock-stage .grid-lines {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(circle at center, #000 20%, transparent 75%);
}
.mock-caption { position: relative; z-index: 2; text-align: center; padding: 0 26px; }
.mock-caption .line-tag { font-size: 10px; letter-spacing: 2px; color: rgba(255,255,255,0.55); text-transform: uppercase; }
.mock-caption h3 { font-size: 26px; font-weight: 750; margin-top: 8px; letter-spacing: -0.6px; }
.mock-caption p { font-size: 11.5px; color: rgba(255,255,255,0.6); margin-top: 8px; }
.mock-scan {
  position: absolute; left: 0; right: 0; height: 1px; top: 30%;
  background: linear-gradient(90deg, transparent, rgba(34,211,238,0.85), transparent);
  box-shadow: 0 0 18px rgba(34,211,238,0.7);
  animation: scan 4.5s ease-in-out infinite;
}
@keyframes scan { 0%, 100% { top: 18%; opacity: 0.2; } 50% { top: 82%; opacity: 0.85; } }
.mock-badge {
  position: absolute; left: 12px; top: 12px; z-index: 3;
  display: flex; align-items: center; gap: 6px;
  padding: 4px 9px; border-radius: 7px; font-size: 10px;
  background: rgba(8,10,18,0.6); border: 1px solid rgba(255,255,255,0.12); color: rgba(255,255,255,0.75);
  backdrop-filter: blur(8px);
}
.mock-float {
  position: absolute; right: 24px; bottom: 46px; z-index: 4;
  background: rgba(12,14,24,0.92); border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px; padding: 10px 13px; font-size: 11px; color: var(--text-dim);
  box-shadow: 0 16px 40px rgba(0,0,0,0.55);
}
.mock-float strong { color: #fff; font-size: 12.5px; display: block; }
.mock-float .bar { width: 132px; height: 4px; border-radius: 4px; background: rgba(255,255,255,0.1); margin-top: 7px; overflow: hidden; }
.mock-float .bar i { display: block; height: 100%; width: 68%; background: var(--gradient); border-radius: 4px; }
.mock-timeline { margin-top: 12px; padding: 12px; border-radius: 12px; background: rgba(255,255,255,0.03); border: 1px solid var(--line); }
.mock-tl-head { display: flex; align-items: center; justify-content: space-between; font-size: 10.5px; color: var(--text-mute); margin-bottom: 8px; }
.mock-tl-head b { color: var(--text-dim); font-weight: 600; }
.mock-clips { display: flex; gap: 5px; height: 40px; }
.mock-clip { border-radius: 6px; position: relative; overflow: hidden; border: 1px solid rgba(255,255,255,0.1); }
.mock-clip::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(255,255,255,0.16), transparent 55%); }
.mock-clip span { position: absolute; left: 5px; bottom: 3px; font-size: 8.5px; color: rgba(255,255,255,0.8); z-index: 2; }
.clip-a { flex: 1.3; background: linear-gradient(135deg, #4c1d95, #7c3aed); }
.clip-b { flex: 1; background: linear-gradient(135deg, #0e7490, #22d3ee); }
.clip-c { flex: 0.8; background: linear-gradient(135deg, #9d174d, #f472b6); }
.clip-d { flex: 1.1; background: linear-gradient(135deg, #92400e, #fbbf24); }
.mock-wave { display: flex; align-items: flex-end; gap: 2px; height: 18px; margin-top: 9px; opacity: 0.7; }
.mock-wave i { flex: 1; background: linear-gradient(180deg, #22d3ee, rgba(124,92,255,0.5)); border-radius: 1px; }

/* Sections */
.section { padding: 104px 0; position: relative; scroll-margin-top: 66px; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 60px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 14px;
  font-size: 11px; font-weight: 600; letter-spacing: 3px; text-transform: uppercase;
  color: #9db8e8; margin-bottom: 18px;
}
.eyebrow::before, .eyebrow::after {
  content: ''; width: 34px; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(157, 184, 232, 0.55));
}
.eyebrow::after { background: linear-gradient(90deg, rgba(157, 184, 232, 0.55), transparent); }
.section-head h2 { font-size: 42px; letter-spacing: -1.2px; font-weight: 750; line-height: 1.22; }
.section-head p { margin-top: 16px; color: var(--text-dim); font-size: 14.5px; line-height: 1.85; }

.metrics {
  border-top: 1px solid rgba(180, 220, 240, 0.12);
  border-bottom: 1px solid rgba(180, 220, 240, 0.12);
  background: rgba(5, 10, 20, 0.25);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); padding: 36px 0; }
.metric { text-align: center; border-right: 1px solid var(--line); }
.metric:last-child { border-right: none; }
.metric strong {
  font-size: 30px; font-weight: 750; letter-spacing: -0.6px; display: block;
  background: linear-gradient(120deg, #eaf4ff, #9db8e8);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.metric span { font-size: 12px; color: var(--text-mute); display: block; margin-top: 6px; }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature {
  position: relative; overflow: hidden;
  padding: 32px 28px; border-radius: 18px;
  background: rgba(10, 18, 32, 0.40);
  border: 1px solid rgba(180, 220, 240, 0.12);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
  transition: border-color 0.25s, transform 0.25s, background 0.25s, box-shadow 0.25s;
}
.feature::before {
  content: ''; position: absolute; top: 0; left: 12%; right: 12%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(126, 232, 255, 0.5), transparent);
  opacity: 0; transition: opacity 0.25s;
}
.feature:hover {
  border-color: rgba(126, 200, 227, 0.4); transform: translateY(-5px);
  background: rgba(12, 22, 40, 0.55);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08), 0 24px 48px rgba(0,0,0,0.35), 0 0 40px rgba(124, 92, 255, 0.08);
}
.feature:hover::before { opacity: 1; }
.feature-ico {
  width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center;
  background: linear-gradient(140deg, rgba(124,92,255,0.22), rgba(34,211,238,0.12));
  border: 1px solid rgba(124, 92, 255, 0.28); color: #c4b5fd; margin-bottom: 20px;
  box-shadow: 0 0 20px rgba(124, 92, 255, 0.15), inset 0 1px 0 rgba(255,255,255,0.1);
}
.feature-ico svg { width: 22px; height: 22px; }
.feature h3 { font-size: 16.5px; font-weight: 650; letter-spacing: -0.2px; }
.feature p { margin-top: 10px; font-size: 13px; color: var(--text-mute); line-height: 1.85; }
.feature .tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 18px; }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.step {
  position: relative; padding: 30px 24px; border-radius: 18px;
  background: rgba(10, 18, 32, 0.40);
  border: 1px solid rgba(180, 220, 240, 0.12);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
  transition: border-color 0.25s, transform 0.25s, background 0.25s, box-shadow 0.25s;
}
.step:hover {
  border-color: rgba(126, 200, 227, 0.4); transform: translateY(-5px);
  background: rgba(12, 22, 40, 0.55);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08), 0 24px 48px rgba(0,0,0,0.35);
}
.step::before { counter-increment: step; content: '0' counter(step); font-size: 11px; font-weight: 700; color: #7ee8ff; letter-spacing: 2px; }
.step h3 { margin-top: 14px; font-size: 15.5px; font-weight: 650; }
.step p { margin-top: 8px; font-size: 12.5px; color: var(--text-mute); line-height: 1.8; }
.step-num {
  position: absolute; right: 18px; top: 12px; font-size: 44px; font-weight: 800; line-height: 1;
  background: linear-gradient(160deg, rgba(126, 232, 255, 0.16), rgba(167, 139, 250, 0.05));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

.tpl-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.tpl-card { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: var(--panel); cursor: pointer; transition: transform 0.2s, border-color 0.2s; }
.tpl-card:hover { transform: translateY(-4px); border-color: rgba(124, 92, 255, 0.45); }
.tpl-cover { aspect-ratio: 4 / 3; position: relative; display: grid; place-items: center; overflow: hidden; }
.tpl-cover::after { content: ''; position: absolute; inset: 0; background: radial-gradient(80% 70% at 70% 20%, rgba(255,255,255,0.22), transparent 60%); }
.tpl-cover .tpl-ratio { position: absolute; left: 10px; top: 10px; z-index: 2; font-size: 10px; background: rgba(0,0,0,0.4); border: 1px solid rgba(255,255,255,0.2); padding: 2px 7px; border-radius: 5px; backdrop-filter: blur(6px); }
.tpl-cover .tpl-play { position: relative; z-index: 2; width: 42px; height: 42px; border-radius: 50%; background: rgba(0,0,0,0.35); border: 1px solid rgba(255,255,255,0.45); display: grid; place-items: center; backdrop-filter: blur(6px); }
.tpl-cover .tpl-play svg { margin-left: 2px; }
.tpl-cover .tpl-cat { position: absolute; right: 10px; bottom: 10px; z-index: 2; font-size: 10px; color: rgba(255,255,255,0.85); }
.tpl-info { padding: 13px 14px 15px; }
.tpl-info h4 { font-size: 13.5px; font-weight: 600; }
.tpl-info p { font-size: 11.5px; color: var(--text-mute); margin-top: 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tpl-meta { display: flex; align-items: center; gap: 8px; margin-top: 10px; font-size: 11px; color: var(--text-mute); }

.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
.price-card {
  padding: 34px 30px; border-radius: 20px;
  border: 1px solid rgba(180, 220, 240, 0.12);
  background: rgba(8, 15, 28, 0.42);
  position: relative; display: flex; flex-direction: column;
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}
.price-card:hover {
  transform: translateY(-5px);
  border-color: rgba(126, 200, 227, 0.35);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08), 0 24px 48px rgba(0,0,0,0.35);
}
.price-card.featured {
  border-color: rgba(126, 200, 227, 0.5);
  background: linear-gradient(170deg, rgba(126, 200, 227, 0.14), rgba(8, 15, 28, 0.55) 55%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08), 0 24px 60px rgba(126, 200, 227, 0.12), 0 0 60px rgba(124, 92, 255, 0.08);
}
.price-badge {
  position: absolute; right: 20px; top: -12px;
  background: linear-gradient(120deg, #7c5cff, #22d3ee); color: #fff;
  font-size: 10.5px; font-weight: 700; padding: 5px 12px; border-radius: 999px;
  letter-spacing: 0.5px; box-shadow: 0 6px 18px rgba(124, 92, 255, 0.4);
}
.price-card h3 { font-size: 16px; font-weight: 650; }
.price-amount { margin-top: 18px; display: flex; align-items: baseline; gap: 6px; }
.price-amount strong {
  font-size: 44px; font-weight: 800; letter-spacing: -1.5px;
  background: linear-gradient(120deg, #ffffff, #b9ccf0);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.price-amount span { font-size: 12px; color: var(--text-mute); }
.price-credits { margin-top: 8px; font-size: 12.5px; color: #7ee8ff; }
.price-list { margin: 22px 0 26px; display: grid; gap: 11px; }
.price-list li { font-size: 12.5px; color: var(--text-dim); display: flex; gap: 8px; align-items: flex-start; }
.price-list svg { width: 14px; height: 14px; color: var(--green); flex: none; margin-top: 3px; }
.price-card .btn { margin-top: auto; }

.faq { max-width: 780px; margin: 0 auto; display: grid; gap: 10px; }
.faq details {
  background: rgba(8, 15, 28, 0.42);
  border: 1px solid rgba(180, 220, 240, 0.14);
  border-radius: 12px; padding: 16px 18px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.faq summary { cursor: pointer; font-size: 13.5px; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; color: var(--text-mute); font-size: 18px; line-height: 1; }
.faq details[open] summary::after { content: '−'; }
.faq p { margin-top: 10px; font-size: 12.5px; color: var(--text-mute); line-height: 1.8; }

.cta-band {
  border-radius: 26px; padding: 72px 48px; text-align: center; position: relative; overflow: hidden;
  background:
    radial-gradient(70% 120% at 50% 0%, rgba(124, 92, 255, 0.16), transparent 60%),
    rgba(10, 20, 40, 0.45);
  border: 1px solid rgba(126, 200, 227, 0.28);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.07), 0 40px 80px rgba(0,0,0,0.3);
}
.cta-band::before {
  content: ''; position: absolute; width: 460px; height: 460px; border-radius: 50%;
  background: rgba(124, 92, 255, 0.22); filter: blur(70px);
  top: -240px; left: 50%; transform: translateX(-50%);
}
.cta-band::after {
  content: ''; position: absolute; top: 0; left: 20%; right: 20%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(126, 232, 255, 0.6), transparent);
}
.cta-band h2 {
  position: relative; font-size: 40px; letter-spacing: -1px; font-weight: 750;
  background: linear-gradient(120deg, #ffffff 30%, #b9ccf0);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.cta-band p { position: relative; margin-top: 14px; color: var(--text-dim); font-size: 14.5px; }
.cta-band .btn { position: relative; margin-top: 30px; }

.footer {
  border-top: 1px solid rgba(180, 220, 240, 0.12);
  padding: 34px 0; margin-top: 20px;
  background: rgba(2, 6, 13, 0.55);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer-links { display: flex; gap: 20px; font-size: 12.5px; color: var(--text-mute); }
.footer-links a:hover { color: var(--text); }
.footer-copy { font-size: 12px; color: var(--text-mute); }
.demo-tip { margin-top: 12px; font-size: 11.5px; color: var(--text-mute); text-align: center; }
.demo-tip a { color: var(--brand-2); cursor: pointer; }

/* ============ 高端化细节：按钮扫光 / mock 悬浮 / logo 光效 ============ */
.landing-body .btn-primary {
  position: relative; overflow: hidden;
  background: linear-gradient(120deg, #7c5cff 0%, #5b7cff 55%, #22d3ee 130%);
  box-shadow: 0 8px 24px rgba(124, 92, 255, 0.35), inset 0 1px 0 rgba(255,255,255,0.25);
  transition: box-shadow 0.25s, transform 0.25s;
}
.landing-body .btn-primary::after {
  content: ''; position: absolute; top: 0; bottom: 0; width: 40%;
  left: -60%; transform: skewX(-20deg);
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.35), transparent);
  animation: btnSheen 4.5s ease-in-out infinite;
}
@keyframes btnSheen {
  0%, 60% { left: -60%; }
  100%    { left: 130%; }
}
.landing-body .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(124, 92, 255, 0.5), inset 0 1px 0 rgba(255,255,255,0.3);
}
.landing-body .btn-outline {
  border-color: rgba(180, 220, 240, 0.25);
  backdrop-filter: blur(8px);
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}
.landing-body .btn-outline:hover {
  border-color: rgba(126, 232, 255, 0.55);
  background: rgba(126, 232, 255, 0.06);
  transform: translateY(-2px);
}

/* mock 窗口轻微悬浮 */
.mock { animation: riseIn 1s cubic-bezier(0.22, 1, 0.36, 1) both, mockFloat 7s ease-in-out 1.2s infinite; }
@keyframes mockFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}

/* nav logo 光晕 */
.nav .logo-mark {
  box-shadow: 0 0 18px rgba(124, 92, 255, 0.55), inset 0 1px 0 rgba(255,255,255,0.3);
}
.nav .logo > span:last-of-type { letter-spacing: 0.5px; }
.nav-links a { position: relative; padding: 4px 0; }
.nav-links a::after {
  content: ''; position: absolute; left: 0; right: 100%; bottom: -2px; height: 1px;
  background: linear-gradient(90deg, #7ee8ff, #a78bfa);
  transition: right 0.25s;
}
.nav-links a:hover::after { right: 0; }

/* 首屏进入动画（mock 的进入+悬浮动画在上方已合并定义，此处仅左列文字） */
.hero-grid > div:first-child { animation: riseIn 1s cubic-bezier(0.22, 1, 0.36, 1) 0.1s both; }
@keyframes riseIn { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero h1 { font-size: 42px; }
  .features, .tpl-grid, .steps { grid-template-columns: repeat(2, 1fr); }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); gap: 18px 0; }
  .metric:nth-child(2) { border-right: none; }
  .price-grid { grid-template-columns: 1fr; max-width: 460px; margin: 0 auto; }
  .nav-links { display: none; }
}
@media (max-width: 640px) {
  .hero { padding: 46px 0 30px; }
  .hero h1 { font-size: 33px; letter-spacing: -0.8px; }
  .features, .tpl-grid, .steps { grid-template-columns: 1fr; }
  .section { padding: 52px 0; }
  .section-head h2 { font-size: 26px; }
  .cta-band { padding: 30px 20px; }
  .cta-band h2 { font-size: 23px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .hero-meta { gap: 14px; }
  .leaper { width: 280px; height: 180px; }
}