/* ══════════════════════════════════════════�?   YS Tools �?Style System
      ══════════════════════════════════════════�?*/

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

:root {
  --canvas: #07080a;
  --surface: #0d0d0d;
  --surface-elevated: #101111;
  --surface-card: #121212;
  --hairline: #242728;
  --hairline-strong: rgba(255,255,255,0.16);
  --ink: #f4f4f6;
  --body: #cdcdcd;
  --mute: #9c9c9d;
  --ash: #6a6b6c;
  --stone: #434345;
  --primary: #ffffff;
  --primary-pressed: #e8e8e8;
  --on-primary: #000000;
  --accent-blue: #57c1ff;
  --accent-green: #59d499;
  --accent-yellow: #ffc533;
  --accent-red: #ff6161;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--canvas);
  color: var(--body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "calt", "kern", "liga", "ss03";
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

/* ── Layout ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-d1 { transition-delay: 0.08s; }
.reveal-d2 { transition-delay: 0.16s; }
.reveal-d3 { transition-delay: 0.24s; }
.reveal-d4 { transition-delay: 0.32s; }
.reveal-d5 { transition-delay: 0.40s; }
.reveal-d6 { transition-delay: 0.48s; }

/* ══════════════════════════════════════════�?   Nav
   ══════════════════════════════════════════�?*/
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: 56px;
  background: rgba(7,8,10,0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--hairline);
  transition: background 0.3s;
}
nav.scrolled { background: rgba(7,8,10,0.95); }
.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  height: 100%; display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-size: 18px; font-weight: 600; color: var(--ink); letter-spacing: -0.3px;
  display: flex; align-items: center; gap: 10px;
}
.nav-logo-img { height: 28px; width: 28px; border-radius: 5px; }
.nav-links { display: flex; gap: 28px; list-style: none; font-size: 14px; font-weight: 500; color: var(--body); align-items: center; }
.nav-links a, .nav-dropdown-trigger { transition: color 0.15s; cursor: pointer; }
.nav-links a:hover, .nav-dropdown-trigger:hover { color: var(--ink); }
/* Dropdown */
.nav-dropdown { position: relative; }
.nav-dropdown::before {
  content: ''; position: absolute; top: 100%; left: 0; right: 0; height: 16px;
}
.nav-dropdown-trigger { display: flex; align-items: center; gap: 4px; user-select: none; }
.nav-dropdown-trigger svg { transition: transform 0.2s; }
.nav-dropdown:hover .nav-dropdown-trigger svg { transform: rotate(180deg); }
.nav-dropdown-menu {
  position: absolute; top: calc(100% + 12px); left: 50%; transform: translateX(-50%) translateY(-4px);
  background: var(--surface); border: 1px solid var(--hairline); border-radius: 10px;
  padding: 6px; min-width: 180px; opacity: 0; pointer-events: none;
  transition: opacity 0.15s, transform 0.15s;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}
.nav-dropdown:hover .nav-dropdown-menu { opacity: 1; pointer-events: auto; transform: translateX(-50%) translateY(0); }
.nav-dropdown-item {
  display: flex; align-items: center; gap: 10px; padding: 8px 12px;
  border-radius: 6px; text-decoration: none; color: var(--body);
  transition: background 0.12s, color 0.12s; font-size: 13px; white-space: nowrap;
}
.nav-dropdown-item:hover { background: var(--surface-elevated); color: var(--ink); }
.nav-dropdown-item img { width: 20px; height: 20px; border-radius: 5px; }
.nav-dropdown-item .nav-item-vip { font-size: 10px; color: var(--accent-yellow); margin-left: 4px; }
.nav-cta {
  background: var(--primary); color: var(--on-primary); border: none;
  padding: 7px 16px; border-radius: 8px; font-size: 13px; font-weight: 500;
  cursor: pointer; transition: background 0.15s, transform 0.15s;
  font-family: inherit;
}
.nav-cta:hover { background: var(--primary-pressed); transform: scale(1.02); }
.nav-social {
  display: flex; gap: 12px; align-items: center;
}
.nav-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  color: var(--mute); transition: color 0.15s, background 0.15s;
  position: relative;
}
.nav-icon:hover { color: var(--ink); background: var(--surface-elevated); }
.nav-icon svg, .nav-icon img { width: 26px; height: 26px; opacity: 0.7; }
.nav-icon:hover svg, .nav-icon:hover img { opacity: 1; }

/* QQ popup */
.qq-popup {
  position: absolute; top: calc(100% + 8px); right: 0;
  background: var(--surface); border: 1px solid var(--hairline);
  border-radius: 12px; padding: 20px; width: max-content;
  opacity: 0; pointer-events: none;
  transform: translateY(-8px);
  transition: opacity 0.2s, transform 0.2s;
  z-index: 200;
}
.qq-popup.show { opacity: 1; pointer-events: auto; transform: translateY(0); }
.qq-popup-title { font-size: 13px; font-weight: 500; color: var(--ink); margin-bottom: 12px; }
.qq-popup-number {
  font-size: 16px; font-weight: 600; color: var(--accent-blue);
  cursor: pointer; padding: 8px 12px; border-radius: 8px;
  background: rgba(87,193,255,0.08); text-align: center;
  transition: background 0.15s; font-variant-numeric: tabular-nums;
  letter-spacing: 1px;
}
.qq-popup-number:hover { background: rgba(87,193,255,0.15); }
.qq-popup-tip { font-size: 11px; color: var(--ash); margin-top: 8px; text-align: center; }
.qq-popup-copied {
  font-size: 11px; color: var(--accent-green); margin-top: 6px;
  text-align: center; opacity: 0; transition: opacity 0.2s;
}
.qq-popup-copied.show { opacity: 1; }

/* ══════════════════════════════════════════�?   Hero
   ══════════════════════════════════════════�?*/
.hero {
  position: relative; height: 100vh;
  display: flex; align-items: center; justify-content: center;
  text-align: center; overflow: hidden; padding: 80px 24px 60px;
}

/* Gradient light streaks */
.hero-gradient-bg {
  position: absolute; inset: -100px -250px; pointer-events: none;
  background:
    radial-gradient(ellipse 500px 280px at 25% 55%, rgba(220,40,60,0.35) 0%, transparent 70%),
    radial-gradient(ellipse 450px 220px at 70% 45%, rgba(20,120,220,0.3) 0%, transparent 70%),
    radial-gradient(ellipse 350px 180px at 48% 65%, rgba(0,200,180,0.15) 0%, transparent 70%);
  filter: blur(50px);
  animation: gradient-shift 8s ease-in-out infinite alternate;
}
@keyframes gradient-shift {
  0% { transform: translateX(-25px) scale(1); }
  100% { transform: translateX(25px) scale(1.06); }
}

/* Scattered icon cards */
.hero-showcase {
  position: absolute; inset: 0; pointer-events: none;
  opacity: 1;
  overflow: hidden;
}
.hero-icon-card {
  position: absolute;
  border-radius: 18px; overflow: hidden;
  background: rgba(18,18,18,0.5);
  border: 1px solid rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  pointer-events: none;
}
.hero-icon-card img {
  width: 100%; height: 100%; object-fit: cover;
}

/* Depth layers �?far (blurry, small) to near (clear, bigger) */
.hero-icon-card.far-3 { width: 36px; height: 36px; border-radius: 8px; opacity: 0.15; filter: blur(3px); }
.hero-icon-card.far-2 { width: 44px; height: 44px; border-radius: 10px; opacity: 0.25; filter: blur(2px); }
.hero-icon-card.far-1 { width: 54px; height: 54px; border-radius: 12px; opacity: 0.4; filter: blur(1px); }
.hero-icon-card.mid   { width: 64px; height: 64px; border-radius: 14px; opacity: 0.6; filter: blur(0px); }
.hero-icon-card.near  { width: 76px; height: 76px; border-radius: 16px; opacity: 0.8; filter: blur(0px); border-color: rgba(255,255,255,0.08); }
.hero-icon-card.front { width: 90px; height: 90px; border-radius: 18px; opacity: 1; filter: blur(0px); border-color: rgba(255,255,255,0.12); box-shadow: 0 0 20px rgba(87,193,255,0.1); }

/* Glow */
.hero-glow {
  position: absolute; top: 40%; left: 50%; width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(87,193,255,0.07) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  animation: glow-pulse 6s ease-in-out infinite;
  pointer-events: none;
}
@keyframes glow-pulse {
  0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.12); }
}

.hero-content { position: relative; z-index: 2; padding-bottom: 60px; }
.hero-badge {
  display: inline-block; font-size: 12px; font-weight: 500; color: var(--accent-blue);
  background: rgba(87,193,255,0.08); border: 1px solid rgba(87,193,255,0.15);
  padding: 5px 14px; border-radius: 999px; margin-bottom: 28px;
  letter-spacing: 0.5px;
  animation: badge-in 0.7s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}
@keyframes badge-in {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero h1 {
  font-size: 60px; font-weight: 700; color: var(--ink); line-height: 1.08;
  letter-spacing: -1.5px; margin-bottom: 20px;
  animation: hero-text-in 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.35s both;
}
@keyframes hero-text-in {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero p {
  font-size: 17px; color: var(--mute); max-width: 480px; margin: 0 auto 36px; line-height: 1.7;
  animation: hero-text-in 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.5s both;
}
.hero-btns {
  display: flex; gap: 12px; justify-content: center;
  animation: hero-text-in 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.65s both;
}
.btn-p {
  background: var(--primary); color: var(--on-primary); border: none;
  padding: 11px 24px; border-radius: 8px; font-size: 14px; font-weight: 500;
  cursor: pointer; transition: background 0.15s, transform 0.15s, box-shadow 0.15s;
  font-family: inherit;
}
.btn-p:hover { background: var(--primary-pressed); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(255,255,255,0.06); }
.btn-s {
  background: rgba(255,255,255,0.06); color: var(--ink);
  padding: 11px 24px; border-radius: 8px; font-size: 14px; font-weight: 500;
  cursor: pointer; transition: background 0.15s, transform 0.15s;
  font-family: inherit; position: relative; z-index: 0;
  border: 2px solid transparent;
  background-image:
    linear-gradient(var(--canvas), var(--canvas)),
    conic-gradient(from var(--glow-angle, 0deg), transparent 60%, rgba(87,193,255,0.6) 78%, transparent 92%);
  background-origin: border-box;
  background-clip: padding-box, border-box;
  animation: glow-spin 3s linear infinite;
}
.btn-s:hover { background-color: rgba(255,255,255,0.08); transform: translateY(-1px); }
@property --glow-angle { syntax: '<angle>'; initial-value: 0deg; inherits: false; }
@keyframes glow-spin { to { --glow-angle: 360deg; } }
.btn-accent {
  background: var(--accent-blue); color: #fff; border: none;
  padding: 11px 24px; border-radius: 8px; font-size: 14px; font-weight: 500;
  cursor: pointer; transition: background 0.15s, transform 0.15s, box-shadow 0.15s;
  font-family: inherit;
}
.btn-accent:hover { background: #4ab8f0; transform: translateY(-1px); box-shadow: 0 8px 24px rgba(87,193,255,0.2); }

/* ══════════════════════════════════════════�?   Products Section
   ══════════════════════════════════════════�?*/
.section { min-height: 100vh; display: flex; align-items: center; padding: 80px 0; }
.section > .container { width: 100%; }
.section-label {
  font-size: 12px; font-weight: 500; color: var(--accent-blue);
  text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 10px;
}
.section-title {
  font-size: 36px; font-weight: 700; color: var(--ink); line-height: 1.1;
  letter-spacing: -0.6px; margin-bottom: 12px;
}
.section-desc { font-size: 15px; color: var(--mute); max-width: 560px; margin-bottom: 40px; line-height: 1.7; }

/* Filter tabs */
.filter-bar { display: flex; gap: 6px; margin-bottom: 28px; flex-wrap: wrap; }
.filter-btn {
  background: transparent; color: var(--mute); border: 1px solid var(--hairline);
  padding: 5px 14px; border-radius: 999px; font-size: 13px; font-weight: 500;
  cursor: pointer; transition: all 0.2s; font-family: inherit;
}
.filter-btn:hover { color: var(--ink); border-color: var(--ash); }
.filter-btn.active { background: var(--primary); color: var(--on-primary); border-color: var(--primary); }

/* Product grid */
.product-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
  perspective: 800px;
}
.product-card {
  background: var(--surface); border: 1px solid var(--hairline); border-radius: 12px;
  padding: 24px; cursor: pointer; position: relative; overflow: hidden;
  transition: transform 0.2s ease-out, box-shadow 0.2s, border-color 0.2s;
  display: block;
  transform-style: preserve-3d;
  will-change: transform;
}
.product-card::before {
  content: ''; position: absolute; inset: 0; border-radius: 12px;
  background: linear-gradient(135deg, rgba(255,255,255,0.02) 0%, transparent 60%);
  opacity: 0; transition: opacity 0.3s;
}
.product-card:hover::before { opacity: 1; }
.product-card:hover {
  border-color: var(--hairline-strong);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.35);
}
.product-card.vip-card {
  background:
    repeating-linear-gradient(0deg, transparent, transparent 3px, rgba(255,255,255,0.012) 3px, rgba(255,255,255,0.012) 4px),
    linear-gradient(180deg, #0e0e0e 0%, var(--surface-card) 100%);
  border-color: rgba(255,197,51,0.08);
}
.product-card.vip-card::after {
  content: ''; position: absolute; bottom: 0; left: 12px; right: 12px; height: 1px;
  background: linear-gradient(90deg, transparent 15%, rgba(255,197,51,0.5) 50%, transparent 85%);
  background-size: 200% 100%;
  animation: gold-line-sway 5s ease-in-out infinite alternate;
}
@keyframes gold-line-sway {
  0% { background-position: 0% 0; }
  100% { background-position: 100% 0; }
}
.product-card.filter-hide {
  opacity: 0; transform: scale(0.92); pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
}
.product-card.filter-hidden { display: none; }

.product-icon {
  width: 64px; height: 64px; border-radius: 14px;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden; background: var(--surface-elevated); flex-shrink: 0;
}
.product-icon img { width: 100%; height: 100%; object-fit: cover; }
.product-card:hover .product-icon { transform: scale(1.08) rotate(-2deg); }
.product-card h3 { font-size: 16px; font-weight: 600; color: var(--ink); margin-bottom: 6px; }

/* Platform badge */
.product-top { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 14px; }
.platform-badge {
  position: absolute; top: 16px; right: 16px;
  display: flex; gap: 4px;
}
.platform-icon {
  width: 26px; height: 26px; border-radius: 6px;
  background: var(--surface-elevated); border: 1px solid var(--hairline);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.platform-icon.win { color: #00a4ef; }
.platform-icon.mac { color: #ffffff; }
.platform-icon svg { width: 14px; height: 14px; fill: currentColor; flex-shrink: 0; }
.product-card .desc { font-size: 13px; color: var(--mute); line-height: 1.55; margin-bottom: 14px; min-height: 40px; }
.product-meta { display: flex; align-items: center; justify-content: space-between; }
.product-more {
  font-size: 12px;
  color: var(--ash);
  transition: color 0.2s;
}
.product-card:hover .product-more {
  color: var(--accent-blue);
}
.badge {
  font-size: 11px; font-weight: 500; padding: 2px 8px; border-radius: 4px; letter-spacing: 0.2px;
}
.badge-free { background: rgba(89,212,153,0.1); color: var(--accent-green); }
.badge-vip { background: rgba(255,197,51,0.1); color: var(--accent-yellow); }
.badge-trial { background: rgba(87,193,255,0.1); color: var(--accent-blue); }
.badge-ver { background: var(--surface-elevated); color: var(--ash); }

/* ══════════════════════════════════════════�?   Overlay (Product Detail)
   ══════════════════════════════════════════�?*/
.overlay {
  position: fixed; inset: 0; z-index: 200;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s;
}
.overlay.open { opacity: 1; pointer-events: auto; }
.overlay-bg {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.overlay-panel {
  position: relative; z-index: 1;
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: 16px;
  width: 90%; max-width: 680px; max-height: 85vh;
  overflow-y: auto;
  padding: 32px;
  transform: translateY(24px) scale(0.97);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
.overlay.open .overlay-panel {
  transform: translateY(0) scale(1);
}
.overlay-close {
  position: absolute; top: 16px; right: 16px;
  background: var(--surface-elevated); border: 1px solid var(--hairline);
  color: var(--mute); width: 32px; height: 32px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: 16px; transition: color 0.15s, border-color 0.15s;
}
.overlay-close:hover { color: var(--ink); border-color: var(--ash); }

/* Overlay header */
.ov-header { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.ov-icon { width: 64px; height: 64px; border-radius: 14px; overflow: hidden; background: var(--surface-elevated); flex-shrink: 0; }
.ov-icon img { width: 100%; height: 100%; object-fit: cover; }
.ov-info h2 { font-size: 22px; font-weight: 600; color: var(--ink); letter-spacing: -0.3px; }
.ov-badges { display: flex; gap: 6px; margin-top: 6px; }
.ov-desc { font-size: 15px; color: var(--body); line-height: 1.65; margin-bottom: 24px; }

/* Video embed */
.ov-video {
  width: 100%; border-radius: 10px; overflow: hidden;
  background: var(--surface-elevated); margin-bottom: 24px;
  position: relative; padding-bottom: 56.25%; height: 0;
}
.ov-video iframe {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  border: none; border-radius: 10px;
}
.ov-video-placeholder {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 8px; color: var(--ash); font-size: 14px;
}
.ov-video-placeholder img {
  width: 80px; height: 80px; border-radius: 16px; opacity: 0.4;
}

/* Features grid */
.ov-features-title { font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 12px; }
.ov-features {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 24px;
}
.ov-feat {
  background: var(--surface-elevated); border: 1px solid var(--hairline);
  border-radius: 8px; padding: 12px 14px; font-size: 13px; color: var(--body);
}

/* Overlay CTA */
.ov-cta { display: flex; gap: 10px; }
.ov-cta .btn-p, .ov-cta .btn-s { font-size: 13px; padding: 9px 18px; }

/* ══════════════════════════════════════════�?   Showcase �?Full-Screen Sections
   ══════════════════════════════════════════�?*/
.showcase-full {
  min-height: 100vh; display: flex; align-items: center;
  padding: 80px 0; position: relative; overflow: hidden;
}
.showcase-full::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 50% at 70% 50%, rgba(87,193,255,0.04) 0%, transparent 100%);
  pointer-events: none;
}
.showcase-full--alt::before {
  background: radial-gradient(ellipse 60% 50% at 30% 50%, rgba(255,197,51,0.03) 0%, transparent 100%);
}
.showcase-full-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 48px;
  display: grid; grid-template-columns: 1fr 2fr; gap: 48px;
  align-items: center; width: 100%;
}
.showcase-full--alt .showcase-full-inner { direction: rtl; }
.showcase-full--alt .showcase-full-inner > * { direction: ltr; }

.showcase-full-text { position: relative; z-index: 2; }
.showcase-full-icon { width: 64px; height: 64px; border-radius: 16px; margin-bottom: 24px; }
.showcase-full-name {
  font-size: 40px; font-weight: 700; color: var(--accent-blue);
  letter-spacing: -0.8px; margin-bottom: 12px; line-height: 1.1;
}
.showcase-full-name--vip { color: var(--accent-yellow); }
.showcase-full-vip {
  font-size: 13px; font-weight: 600; color: var(--accent-yellow);
  background: rgba(255,197,51,0.1); padding: 3px 10px; border-radius: 4px;
  vertical-align: middle; margin-left: 8px; letter-spacing: 0.3px;
}
.showcase-full-desc {
  font-size: 17px; color: var(--body); line-height: 1.7; margin-bottom: 28px;
  max-width: 340px;
}
.showcase-full-list {
  list-style: none; margin: 0 0 32px; padding: 0;
  display: flex; flex-direction: column; gap: 14px;
}
.showcase-full-list li {
  font-size: 15px; color: var(--mute); line-height: 1.5;
  padding-left: 20px; position: relative;
}
.showcase-full-list li::before {
  content: ''; position: absolute; left: 0; top: 7px;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-blue); opacity: 0.6;
}
.showcase-full--alt .showcase-full-list li::before { background: var(--accent-yellow); }
.showcase-full-actions { display: flex; gap: 12px; }

/* Video */
.showcase-full-video { position: relative; z-index: 2; }
.showcase-full-frame {
  border-radius: 16px; overflow: hidden;
  background: linear-gradient(145deg, rgba(255,255,255,0.03) 0%, rgba(255,255,255,0.01) 100%);
  border: 1px solid rgba(255,255,255,0.06);
  aspect-ratio: 16 / 10;
  display: flex; align-items: center; justify-content: center;
  position: relative;
  box-shadow: 0 0 80px rgba(87,193,255,0.05);
}
.showcase-full--alt .showcase-full-frame {
  box-shadow: 0 0 80px rgba(255,197,51,0.04);
}
.showcase-full-frame iframe {
  width: 100%; height: 100%; border: none; position: absolute; inset: 0;
}
.showcase-video-placeholder {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 14px; color: var(--ash);
}
.showcase-video-placeholder img { width: 64px; height: 64px; border-radius: 14px; opacity: 0.15; }
.showcase-video-placeholder span { font-size: 13px; opacity: 0.5; }

/* ══════════════════════════════════════════�?   CTA Section
   ══════════════════════════════════════════�?*/
.cta-section {
  text-align: center; padding: 80px 24px;
  border-top: 1px solid var(--hairline);
  position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; top: 50%; left: 50%;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(87,193,255,0.05) 0%, transparent 70%);
  transform: translate(-50%, -50%);
}
.cta-section h2 {
  font-size: 32px; font-weight: 700; color: var(--ink); margin-bottom: 10px;
  letter-spacing: -0.5px; position: relative;
}
.cta-section p { font-size: 15px; color: var(--mute); margin-bottom: 28px; position: relative; }
.cta-btns { display: flex; gap: 12px; justify-content: center; position: relative; }
.cta-qq {
  display: inline-flex; align-items: center; gap: 12px;
  background: var(--surface); border: 1px solid var(--hairline); border-radius: 10px;
  padding: 10px 20px; position: relative; cursor: pointer;
  transition: border-color 0.2s, transform 0.2s;
}
.cta-qq:hover { border-color: var(--accent-blue); transform: translateY(-2px); }
.cta-qq-icon { width: 28px; height: 28px; border-radius: 6px; overflow: hidden; flex-shrink: 0; }
.cta-qq-icon img { width: 100%; height: 100%; object-fit: cover; opacity: 0.8; }
.cta-qq-info { display: flex; align-items: center; gap: 8px; }
.cta-qq-label { font-size: 12px; color: var(--mute); font-weight: 500; }
.cta-qq-number { font-size: 16px; font-weight: 700; color: var(--ink); letter-spacing: 1px; font-variant-numeric: tabular-nums; }
.cta-qq-tip { font-size: 12px; color: var(--ash); }
.cta-qq-copied {
  position: absolute; top: -8px; right: -8px;
  background: var(--accent-green); color: #fff; font-size: 11px; font-weight: 600;
  padding: 3px 8px; border-radius: 6px; opacity: 0; pointer-events: none;
  transition: opacity 0.2s;
}
.cta-qq-copied.show { opacity: 1; }
.cta-partner { margin-top: 16px; position: relative; }
.cta-partner a {
  font-size: 14px; color: var(--body); text-decoration: none; transition: color 0.2s;
}
.cta-partner a:hover { color: var(--accent-blue); }
.cta-partner a strong { color: var(--accent-blue); font-weight: 600; }

/* ══════════════════════════════════════════�?   Footer
   ══════════════════════════════════════════�?*/
footer { padding: 56px 48px 40px; border-top: 1px solid var(--hairline); }
.footer-inner {
  max-width: 1200px; margin: 0 auto; display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px;
}
.footer-brand p { font-size: 13px; color: var(--mute); margin-top: 10px; max-width: 260px; line-height: 1.6; }
.footer-col h4 { font-size: 12px; font-weight: 600; color: var(--ink); margin-bottom: 14px; text-transform: uppercase; letter-spacing: 0.8px; }
.footer-col a {
  display: block; font-size: 13px; color: var(--mute); padding: 3px 0;
  transition: color 0.15s;
}
.footer-col a:hover { color: var(--ink); }
.footer-bottom {
  max-width: 1200px; margin: 28px auto 0; padding-top: 20px; border-top: 1px solid var(--hairline);
  font-size: 12px; color: var(--stone); display: flex; justify-content: space-between;
}

/* ══════════════════════════════════════════�?   Responsive
   ══════════════════════════════════════════�?*/
@media (max-width: 900px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .showcase-full { min-height: auto; padding: 60px 0; }
  .showcase-full-inner { grid-template-columns: 1fr; gap: 32px; padding: 0 24px; }
  .showcase-full--alt .showcase-full-inner { direction: ltr; }
  .showcase-full-name { font-size: 30px; }
}
@media (max-width: 640px) {
  .hero h1 { font-size: 36px; letter-spacing: -0.5px; }
  .hero { height: 100vh; padding: 80px 20px 40px; }
  .product-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .section-title { font-size: 28px; }
  .overlay-panel { padding: 24px; width: 95%; }
  .ov-features { grid-template-columns: repeat(2, 1fr); }
  .hero-icon { width: 56px !important; height: 56px !important; }
}