/* ============================================================
   VCD GLOBAL STYLES — Red-Green-Gold Premium Theme v3.0
   主色: 红色 #e8192c  绿色 #00c853  金色 #ffd700
   点缀: 琥珀黄 #ffb300  霓虹紫 #a855f7
   背景: 深红绿调, 避免纯黑/大面积白
   字体: 端庄大气科技风
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;600;700;900&family=Noto+Serif+SC:wght@400;500;600;700;900&family=Space+Grotesk:wght@400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  /* ── 主色调 ── */
  --red: #e8192c;
  --red-light: #ff4d5e;
  --red-soft: rgba(232,25,44,0.15);
  --red-dark: #8b0015;
  --red-deep: #3d0008;

  --green: #00c853;
  --green-light: #69f0ae;
  --green-soft: rgba(0,200,83,0.15);
  --green-dark: #00853a;
  --green-deep: #002218;

  /* ── 金色系 ── */
  --gold: #ffd700;
  --gold-light: #ffe57a;
  --gold-dark: #b8960c;
  --gold-soft: rgba(255,215,0,0.12);

  /* ── 点缀色 ── */
  --amber: #ffb300;           /* 琥珀黄 - 温暖点缀 */
  --amber-soft: rgba(255,179,0,0.12);
  --purple: #a855f7;          /* 霓虹紫 - 科技点缀 */
  --purple-soft: rgba(168,85,247,0.12);
  --purple-glow: rgba(168,85,247,0.25);

  /* ── 渐变组合 ── */
  --grad-rg: linear-gradient(135deg, #e8192c 0%, #00c853 100%);
  --grad-gr: linear-gradient(135deg, #00c853 0%, #e8192c 100%);
  --grad-gold: linear-gradient(135deg, #ffd700 0%, #ff8c00 100%);
  --grad-rg-gold: linear-gradient(135deg, #e8192c 0%, #00c853 55%, #ffd700 100%);
  --grad-rp: linear-gradient(135deg, #e8192c 0%, #a855f7 50%, #00c853 100%);
  --grad-sunset: linear-gradient(135deg, #ff4d5e 0%, #ffb300 40%, #ffd700 70%, #69f0ae 100%);
  --grad-aurora: linear-gradient(135deg, #e8192c 0%, #a855f7 30%, #00c853 60%, #69f0ae 80%, #ffd700 100%);
  --grad-warm: linear-gradient(180deg, rgba(232,25,44,0.08) 0%, rgba(255,179,0,0.05) 50%, rgba(0,200,83,0.06) 100%);

  /* ── 毛玻璃 ── */
  --glass-bg: rgba(255,255,255,0.05);
  --glass-border: rgba(255,255,255,0.10);
  --glass-shadow: 0 8px 40px rgba(0,0,0,0.4);

  /* ── 文字颜色（避免纯白） ── */
  --text-main: #ececec;
  --text-sub: #9aa5b2;
  --text-bright: #fff8f0;
  --text-gold: #ffe680;

  /* ── 字体系统：端庄大气 + 科技感 ── */
  --font: 'Noto Sans SC', 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-display: 'Space Grotesk', 'Noto Sans SC', 'Inter', sans-serif;
  --font-serif: 'Noto Serif SC', 'Noto Sans SC', serif;

  /* ── 圆角 ── */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  /* ── 背景基调（深红绿色调，非纯黑） ── */
  --bg-base: #0c0908;
  --bg-warm: #0e0606;
  --bg-cool: #060e09;
}

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

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

body {
  font-family: var(--font);
  font-weight: 400;
  color: var(--text-main);
  background: var(--bg-base);
  overflow-x: hidden;
  line-height: 1.65;
  letter-spacing: 0.3px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'kern' 1;
}

/* ═══════════════════════════════════════════════════════════════
   星光点点背景层 — 全局闪烁星光效果
   ═══════════════════════════════════════════════════════════════ */
.stars-layer {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}
.stars-layer::before,
.stars-layer::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.5px 1.5px at 10% 20%, rgba(255,255,255,0.7) 0%, transparent 100%),
    radial-gradient(1px 1px at 25% 45%, rgba(255,215,0,0.6) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 40% 10%, rgba(105,240,174,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 55% 65%, rgba(255,77,94,0.6) 0%, transparent 100%),
    radial-gradient(2px 2px at 70% 30%, rgba(168,85,247,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 82% 78%, rgba(255,215,0,0.5) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 92% 15%, rgba(0,200,83,0.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 15% 85%, rgba(255,179,0,0.5) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 35% 55%, rgba(255,255,255,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 62% 88%, rgba(255,77,94,0.5) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 78% 42%, rgba(105,240,174,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 5% 50%, rgba(168,85,247,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 48% 35%, rgba(255,215,0,0.5) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 88% 60%, rgba(0,200,83,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 22% 72%, rgba(255,255,255,0.3) 0%, transparent 100%);
}
.stars-layer::before { animation: starsTwinkleA 6s ease-in-out infinite alternate; }
.stars-layer::after {
  background-image:
    radial-gradient(1px 1px at 8% 35%, rgba(255,179,0,0.5) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 18% 68%, rgba(168,85,247,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 33% 18%, rgba(255,77,94,0.5) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 47% 75%, rgba(255,215,0,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 58% 5%, rgba(105,240,174,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 67% 52%, rgba(255,255,255,0.4) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 75% 88%, rgba(0,200,83,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 85% 25%, rgba(255,179,0,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 95% 55%, rgba(168,85,247,0.3) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 12% 95%, rgba(255,77,94,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 28% 40%, rgba(255,215,0,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 52% 62%, rgba(105,240,174,0.4) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 72% 12%, rgba(255,255,255,0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 95% 8%, rgba(0,200,83,0.4) 0%, transparent 100%);
  animation: starsTwinkleB 8s ease-in-out infinite alternate-reverse;
}
@keyframes starsTwinkleA {
  0%   { opacity: 0.5; }
  50%  { opacity: 0.9; }
  100% { opacity: 0.6; }
}
@keyframes starsTwinkleB {
  0%   { opacity: 0.4; }
  50%  { opacity: 0.8; }
  100% { opacity: 0.5; }
}

/* ── Premium Mesh Gradient Background ── */
.mesh-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 120% 110% at 0% 0%, #18060a 0%, #0c0908 35%, #060e09 70%, #08100a 100%);
  contain: strict;
}
.mesh-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 8% 15%, rgba(232,25,44,0.28) 0%, transparent 58%),
    radial-gradient(ellipse 60% 50% at 92% 80%, rgba(0,200,83,0.22) 0%,  transparent 58%),
    radial-gradient(ellipse 45% 40% at 50% 50%, rgba(0,200,83,0.10) 0%, transparent 65%),
    radial-gradient(ellipse 50% 45% at 85% 10%, rgba(232,25,44,0.16) 0%, transparent 58%),
    radial-gradient(ellipse 38% 32% at 20% 85%, rgba(255,215,0,0.07) 0%, transparent 62%),
    radial-gradient(ellipse 40% 35% at 70% 45%, rgba(168,85,247,0.06) 0%, transparent 62%),
    radial-gradient(ellipse 30% 28% at 45% 85%, rgba(255,179,0,0.05) 0%, transparent 65%);
  animation: meshShift 18s ease-in-out infinite alternate;
}
.mesh-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 60px,
      rgba(255,255,255,0.01) 60px,
      rgba(255,255,255,0.01) 61px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 60px,
      rgba(255,255,255,0.01) 60px,
      rgba(255,255,255,0.01) 61px
    );
  pointer-events: none;
}
@keyframes meshShift {
  0%   { transform: scale(1) rotate(0deg) translate(0,0); }
  33%  { transform: scale(1.06) rotate(2.5deg) translate(-18px,8px); }
  66%  { transform: scale(1.03) rotate(-1.5deg) translate(12px,-6px); }
  100% { transform: scale(1.05) rotate(0.8deg) translate(-4px,12px); }
}

/* ── Glassmorphism Cards ── */
.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-radius: var(--radius-md);
  box-shadow: var(--glass-shadow);
}
.glass-red {
  background: rgba(232,25,44,0.06);
  border: 1px solid rgba(232,25,44,0.18);
}
.glass-green {
  background: rgba(0,200,83,0.06);
  border: 1px solid rgba(0,200,83,0.18);
}
.glass-purple {
  background: rgba(168,85,247,0.05);
  border: 1px solid rgba(168,85,247,0.15);
}

/* ── Glow Borders ── */
.glow-red  { box-shadow: 0 0 20px rgba(232,25,44,0.35),  inset 0 0 20px rgba(232,25,44,0.04); }
.glow-green{ box-shadow: 0 0 20px rgba(0,200,83,0.35),   inset 0 0 20px rgba(0,200,83,0.04); }
.glow-gold { box-shadow: 0 0 20px rgba(255,215,0,0.3),  inset 0 0 20px rgba(255,215,0,0.04); }
.glow-purple{box-shadow: 0 0 20px rgba(168,85,247,0.3), inset 0 0 20px rgba(168,85,247,0.04); }

/* ── NAVBAR ── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 52px;
  height: 74px;
  background: rgba(12,9,8,0.82);
  backdrop-filter: blur(24px) saturate(200%);
  -webkit-backdrop-filter: blur(24px) saturate(200%);
  border-bottom: 1px solid rgba(232,25,44,0.12);
  transition: background 0.4s, border-color 0.4s, height 0.3s;
}
.navbar.scrolled {
  background: rgba(12,9,8,0.94);
  border-bottom-color: rgba(232,25,44,0.22);
  height: 66px;
}
/* 顶部渐变光线 */
.navbar::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1.5px;
  background: linear-gradient(90deg, transparent 0%, var(--red) 20%, var(--amber) 45%, var(--purple) 55%, var(--green) 80%, transparent 100%);
  opacity: 0.7;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  position: relative;
  z-index: 1;
}
/* ── Logo 圆形图标容器 ── */
.nav-logo-icon {
  position: relative;
  flex-shrink: 0;
}
.nav-logo-icon::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: conic-gradient(
    from var(--logo-angle, 0deg),
    var(--red) 0%,
    var(--amber) 20%,
    transparent 35%,
    var(--green) 50%,
    var(--purple) 70%,
    transparent 85%,
    var(--red) 100%
  );
  animation: logoRingSpin 4s linear infinite;
  opacity: 0.6;
  z-index: -1;
}
@keyframes logoRingSpin {
  to { --logo-angle: 360deg; }
}
@property --logo-angle {
  syntax: '<angle>';
  initial-value: 0deg;
  inherits: false;
}
.nav-logo-icon::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.15), transparent 60%);
  z-index: 2;
  pointer-events: none;
}
.nav-logo-img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  position: relative;
  z-index: 1;
  transition: transform 0.4s cubic-bezier(.34,1.56,.64,1);
  filter: drop-shadow(0 0 12px rgba(232,25,44,0.4));
}
.nav-logo:hover .nav-logo-img {
  transform: scale(1.12) rotate(8deg);
  filter: drop-shadow(0 0 22px rgba(232,25,44,0.65)) drop-shadow(0 0 40px rgba(0,200,83,0.25)) drop-shadow(0 0 15px rgba(168,85,247,0.2));
}

/* ── 文字区域：Vocal Clone Dub 嵌入式设计 ── */
.nav-logo-text {
  display: flex;
  align-items: baseline;
  gap: 4px;
  line-height: 1;
  padding-top: 1px;
}
.logo-word {
  font-family: var(--font-display);
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  font-weight: 400;
  letter-spacing: 0.6px;
  transition: all 0.35s ease;
  position: relative;
}
.logo-word b {
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 1px;
  margin-right: 1px;
  background: var(--grad-aurora);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-size: 300% auto;
  animation: vcdShimmer 5s ease infinite;
  display: inline-block;
  vertical-align: baseline;
  line-height: 1;
  text-transform: uppercase;
  filter: drop-shadow(0 0 8px rgba(232,25,44,0.3));
  transition: filter 0.3s ease;
}
@keyframes vcdShimmer {
  0%, 100% { background-position: 0% center; }
  50%      { background-position: 230% center; }
}

/* ── 单词交错入场动画 ── */
.logo-word:nth-child(1) { animation: wordIn 0.6s 0.05s both cubic-bezier(.22,1,.36,1); }
.logo-word:nth-child(2) { animation: wordIn 0.6s 0.18s both cubic-bezier(.22,1,.36,1); }
.logo-word:nth-child(3) { animation: wordIn 0.6s 0.31s both cubic-bezier(.22,1,.36,1); }
@keyframes wordIn {
  from { opacity: 0; transform: translateY(-10px); filter: blur(4px); }
  to   { opacity: 1; transform: translateY(0);   filter: blur(0); }
}

.logo-word:hover { color: rgba(255,255,255,0.7); transform: translateY(-1px); }
.logo-word:hover b {
  filter: drop-shadow(0 0 16px rgba(232,25,44,0.6)) drop-shadow(0 0 30px rgba(0,200,83,0.25)) drop-shadow(0 0 12px rgba(168,85,247,0.2));
}
.nav-logo:hover .nav-logo-icon::before { opacity: 1; animation-duration: 1.5s; }

.nav-links {
  display: flex;
  gap: 8px;
  list-style: none;
  align-items: center;
}
.nav-links a {
  text-decoration: none;
  color: rgba(255,255,255,0.6);
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0.8px;
  padding: 6px 14px;
  border-radius: 8px;
  position: relative;
  transition: color 0.3s, background 0.3s;
}
.nav-links a:hover,
.nav-links a.active { color: #fff; background: rgba(255,255,255,0.05); }
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 50%;
  transform: translateX(-50%);
  width: 20px; height: 2px;
  background: var(--grad-rp);
  border-radius: 2px;
}

.nav-cta {
  background: var(--grad-rg) !important;
  color: #fff !important;
  padding: 8px 22px !important;
  border-radius: var(--radius-xl) !important;
  font-weight: 700 !important;
  font-size: 13px !important;
  letter-spacing: 0.5px !important;
  box-shadow: 0 4px 20px rgba(232,25,44,0.35), 0 0 12px rgba(0,200,83,0.15);
  transition: transform 0.3s, box-shadow 0.3s !important;
}
.nav-cta:hover {
  transform: translateY(-2px) scale(1.03) !important;
  box-shadow: 0 8px 28px rgba(232,25,44,0.55), 0 4px 16px rgba(0,200,83,0.25) !important;
  background: rgba(255,255,255,0.06) !important;
}
.nav-cta.active::after { display: none !important; }

/* 汉堡菜单 */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  transition: background 0.3s;
}
.nav-hamburger:hover { background: rgba(255,255,255,0.08); }
.nav-hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: transform 0.35s, opacity 0.35s, width 0.35s;
  transform-origin: center;
}
.nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; width: 0; }
.nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* 移动端菜单抽屉 */
.nav-mobile-menu {
  display: none;
  position: fixed;
  top: 74px; left: 0; right: 0;
  background: rgba(12,9,8,0.97);
  backdrop-filter: blur(30px);
  border-bottom: 1px solid rgba(232,25,44,0.15);
  padding: 16px 24px 24px;
  z-index: 999;
  transform: translateY(-8px);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-mobile-menu.open {
  display: block;
  transform: translateY(0);
  opacity: 1;
}
.nav-mobile-menu ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.nav-mobile-menu a {
  display: block;
  padding: 12px 16px;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  border-radius: 10px;
  transition: background 0.3s, color 0.3s;
  letter-spacing: 0.5px;
}
.nav-mobile-menu a:hover,
.nav-mobile-menu a.active {
  background: rgba(232,25,44,0.08);
  color: #fff;
}
.nav-mobile-cta {
  display: block;
  margin-top: 12px;
  padding: 13px 20px;
  background: var(--grad-rg);
  color: #fff !important;
  border-radius: var(--radius-xl);
  text-align: center;
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 4px 20px rgba(232,25,44,0.35);
}

/* ── Section Common ── */
.section { padding: 110px 0 90px; }
.container { max-width: 1220px; margin: 0 auto; padding: 0 44px; }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 600;
  margin-bottom: 14px;
  font-family: var(--font-display);
}
.section-label::before,
.section-label::after {
  content: '';
  display: block;
  width: 24px; height: 1px;
  background: linear-gradient(90deg, var(--amber), var(--gold));
  opacity: 0.7;
}

.section-title {
  text-align: center;
  margin-bottom: 14px;
}
.section-title h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.8vw, 50px);
  font-weight: 800;
  background: var(--grad-aurora);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 1px;
  line-height: 1.15;
}
.section-subtitle {
  text-align: center;
  color: var(--text-sub);
  font-size: 15px;
  margin-bottom: 64px;
  letter-spacing: 0.3px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

/* ── Gradient Text ── */
.grad-text  { background: var(--grad-rg);   -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.grad-gold  { background: var(--grad-gold);  -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.grad-aurora{ background: var(--grad-aurora);-webkit-background-clip: text; -webkit-text-fill-color: transparent; }

/* ── Glow Buttons ── */
.btn-glow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  border-radius: var(--radius-xl);
  font-size: 14.5px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
  transition: transform 0.35s cubic-bezier(.34,1.56,.64,1), box-shadow 0.35s;
  text-decoration: none;
  letter-spacing: 0.3px;
  font-family: var(--font);
}
.btn-glow::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 60%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.18), transparent);
  transition: left 0.5s ease;
  pointer-events: none;
}
.btn-glow:hover::before { left: 160%; }

.btn-glow-primary {
  background: var(--grad-rg);
  color: #fff;
  box-shadow: 0 6px 28px rgba(232,25,44,0.4), 0 2px 8px rgba(0,200,83,0.18), 0 0 15px rgba(168,85,247,0.1);
}
.btn-glow-primary:hover {
  transform: translateY(-3px) scale(1.04);
  box-shadow: 0 12px 40px rgba(232,25,44,0.55), 0 4px 16px rgba(0,200,83,0.3), 0 0 25px rgba(168,85,247,0.15);
}
.btn-glow-outline {
  background: transparent;
  color: var(--text-bright);
  border: 1.5px solid rgba(0,200,83,0.4);
  box-shadow: 0 0 18px rgba(0,200,83,0.15), inset 0 0 18px rgba(0,200,83,0.02);
}
.btn-glow-outline:hover {
  background: rgba(0,200,83,0.08);
  transform: translateY(-3px);
  border-color: var(--green);
  box-shadow: 0 8px 30px rgba(0,200,83,0.3);
}
.btn-glow-gold {
  background: var(--grad-gold);
  color: #1a0a00;
  box-shadow: 0 6px 28px rgba(255,215,0,0.35);
}
.btn-glow-gold:hover {
  transform: translateY(-3px) scale(1.04);
  box-shadow: 0 12px 40px rgba(255,215,0,0.5);
}

/* ── Floating particles overlay ── */
#particles-canvas {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.75;
}

/* ── Divider line ── */
.divider {
  width: 80px; height: 3px;
  background: var(--grad-aurora);
  border-radius: 3px;
  margin: 0 auto 40px;
}

/* ── Tag chip ── */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  padding: 4px 12px;
  border-radius: 20px;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.chip-red   { background: rgba(232,25,44,0.10); border: 1px solid rgba(232,25,44,0.25); color: var(--red-light); }
.chip-green { background: rgba(0,200,83,0.10);  border: 1px solid rgba(0,200,83,0.25);  color: var(--green-light); }
.chip-gold  { background: rgba(255,215,0,0.10); border: 1px solid rgba(255,215,0,0.25); color: var(--gold-light); }
.chip-purple{ background: rgba(168,85,247,0.10);border: 1px solid rgba(168,85,247,0.25);color: #c99bff; }

/* ═══════════════════════════════════════════════════════════════
   国徽图标样式
   ═══════════════════════════════════════════════════════════════ */
.guohui-icon {
  width: 16px;
  height: 16px;
  vertical-align: middle;
  margin: 0 3px 0 2px;
  border-radius: 2px;
  object-fit: contain;
  filter: brightness(0.9) contrast(1.1);
  transition: filter 0.3s ease;
}
.footer-beian a:hover .guohui-icon {
  filter: brightness(1.1) contrast(1.2);
}

/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */
footer {
  background: linear-gradient(180deg,
    rgba(18,6,6,0.92) 0%,
    rgba(10,5,5,0.96) 50%,
    rgba(8,3,3,0.98) 100%
  );
  border-top: 1px solid rgba(232,25,44,0.15);
  padding: 64px 0 28px;
  position: relative;
  overflow: hidden;
}
footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--red) 20%, var(--amber) 40%, var(--gold) 50%, var(--purple) 60%, var(--green) 80%, transparent);
  opacity: 0.6;
}
footer::after {
  content: '';
  position: absolute;
  bottom: 0; left: -20%; right: -20%;
  height: 350px;
  background: radial-gradient(ellipse at 50% 100%, rgba(232,25,44,0.06) 0%, rgba(168,85,247,0.03) 40%, transparent 70%);
  pointer-events: none;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  margin-bottom: 48px;
  position: relative;
  z-index: 1;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.footer-logo img {
  width: 68px;
  border-radius: 50%;
  border: 2px solid transparent;
  background: linear-gradient(var(--bg-base),var(--bg-base)) padding-box, var(--grad-aurora) border-box;
  box-shadow: 0 0 20px rgba(232,25,44,0.35), 0 0 10px rgba(168,85,247,0.15);
}
.footer-brand-name {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  background: var(--grad-aurora);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 2px;
}
.footer-brand-desc {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
  line-height: 1.7;
  max-width: 200px;
}

.footer-links-grid {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 32px;
}
.footer-col h4 {
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
  font-weight: 700;
  font-family: var(--font-display);
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col a {
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  text-decoration: none;
  transition: color 0.3s;
  display: flex;
  align-items: center;
  gap: 6px;
}
.footer-col a:hover { color: var(--green-light); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  position: relative;
  z-index: 1;
}
.footer-beian {
  font-size: 12px;
  color: rgba(255,255,255,0.28);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-beian a {
  color: rgba(255,255,255,0.35);
  text-decoration: none;
  transition: color 0.3s;
}
.footer-beian a:hover { color: var(--green-light); }
.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.45);
  font-size: 16px;
  text-decoration: none;
  transition: all 0.3s;
}
.footer-social a:hover {
  background: var(--green-soft);
  border-color: rgba(0,200,83,0.3);
  color: var(--green-light);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0,200,83,0.25);
}
.footer-social a.tiktok:hover {
  background: rgba(168,85,247,0.1);
  border-color: rgba(168,85,247,0.3);
  color: #c99bff;
  box-shadow: 0 6px 20px rgba(168,85,247,0.2);
}

/* ── Page Hero (内页) ── */
.page-hero {
  padding: 140px 0 70px;
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse 100% 80% at 50% 0%, rgba(232,25,44,0.12) 0%, rgba(168,85,247,0.05) 50%, transparent 70%);
}
.page-breadcrumb {
  font-size: 12px;
  color: rgba(255,255,255,0.38);
  letter-spacing: 1.5px;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.page-hero-content h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 60px);
  font-weight: 800;
  background: linear-gradient(135deg, var(--text-bright) 0%, rgba(255,240,220,0.8) 50%, rgba(255,215,170,0.6) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.15;
  margin-bottom: 16px;
}
.page-hero-content p {
  font-size: 17px;
  color: rgba(255,255,255,0.5);
  max-width: 520px;
  line-height: 1.7;
}
.hero-wave {
  position: absolute;
  bottom: -1px; left: 0; right: 0;
}
.hero-wave svg { display: block; }

/* ── Scroll-reveal animations ── */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.75s cubic-bezier(.22,1,.36,1), transform 0.75s cubic-bezier(.22,1,.36,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

.reveal-left {
  opacity: 0;
  transform: translateX(-48px);
  transition: opacity 0.75s cubic-bezier(.22,1,.36,1), transform 0.75s cubic-bezier(.22,1,.36,1);
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }

.reveal-right {
  opacity: 0;
  transform: translateX(48px);
  transition: opacity 0.75s cubic-bezier(.22,1,.36,1), transform 0.75s cubic-bezier(.22,1,.36,1);
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

.reveal-scale {
  opacity: 0;
  transform: scale(0.88);
  transition: opacity 0.75s cubic-bezier(.22,1,.36,1), transform 0.75s cubic-bezier(.22,1,.36,1);
}
.reveal-scale.visible { opacity: 1; transform: scale(1); }

/* ── Shimmer/loading animation ── */
@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}
.shimmer-text {
  background: linear-gradient(90deg, var(--red) 0%, var(--amber) 20%, var(--gold) 35%, var(--green) 50%, var(--gold) 65%, var(--purple) 80%, var(--red) 100%);
  background-size: 250% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 5s linear infinite;
}

/* ── Floating orbs ── */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  animation: orbFloat 10s ease-in-out infinite alternate;
}
.orb-red   { background: var(--red);     opacity: 0.15; }
.orb-green { background: var(--green);   opacity: 0.12; }
.orb-gold  { background: var(--gold);    opacity: 0.08; }
.orb-purple{ background: var(--purple);  opacity: 0.08; }
@keyframes orbFloat {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(30px, -20px) scale(1.1); }
  100% { transform: translate(-15px, 25px) scale(0.95); }
}

/* ── CTA Section (shared) ── */
.cta-section { padding: 90px 0; }
.cta-box {
  text-align: center;
  padding: 72px 48px;
  border-color: rgba(232,25,44,0.15) !important;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl) !important;
  background: linear-gradient(135deg, rgba(232,25,44,0.05) 0%, rgba(168,85,247,0.03) 50%, rgba(0,200,83,0.05) 100%) !important;
}
.cta-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 50%, rgba(232,25,44,0.06) 0%, rgba(168,85,247,0.03) 50%, transparent 70%);
  pointer-events: none;
}
.cta-box::after {
  content: '';
  position: absolute;
  top: -1px; left: 10%; right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--red), var(--amber), var(--gold), var(--purple), var(--green), transparent);
  opacity: 0.65;
}
.cta-box h2 {
  font-family: var(--font-display);
  font-size: clamp(22px, 3.5vw, 42px);
  font-weight: 800;
  background: var(--grad-aurora);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 14px;
  position: relative;
}
.cta-box p {
  color: var(--text-sub);
  font-size: 16px;
  position: relative;
  line-height: 1.7;
}

/* ═══════════════════════════════════════════════════════════════
   流光边框动效 — 可应用于任意卡片
   ═══════════════════════════════════════════════════════════════ */
@keyframes borderFlow {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.flow-border {
  position: relative;
  overflow: hidden;
}
.flow-border::before {
  content: '';
  position: absolute;
  inset: 0;
  padding: 1.5px;
  border-radius: inherit;
  background: var(--grad-aurora);
  background-size: 300% 300%;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: borderFlow 4s ease infinite;
  opacity: 0.5;
  transition: opacity 0.3s;
}
.flow-border:hover::before { opacity: 0.9; }

/* ── Responsive Utilities ── */
@media (max-width: 1024px) {
  .container { padding: 0 32px; }
  .section { padding: 90px 0 70px; }
}

@media (max-width: 768px) {
  .navbar { padding: 0 20px; height: 66px; }
  .navbar.scrolled { height: 60px; }
  .nav-links { display: none !important; }
  .nav-hamburger { display: flex; }
  .nav-mobile-menu { top: 66px; }
  .container { padding: 0 20px; }
  .section { padding: 70px 0 52px; }
  .footer-inner { grid-template-columns: 1fr; gap: 36px; }
  .footer-links-grid { grid-template-columns: repeat(2,1fr); }
  .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
}

@media (max-width: 480px) {
  .section { padding: 56px 0 40px; }
  .footer-links-grid { grid-template-columns: 1fr; }
  .cta-box { padding: 48px 24px; }
  /* 移动端：缩小 Logo 文字，隐藏小写部分只保留 VCD */
  .logo-word { font-size: 0; letter-spacing: 0; }
  .logo-word b {
    font-size: 18px;
    margin-right: 2px;
    filter: drop-shadow(0 0 6px rgba(232,25,44,0.35));
  }
  .nav-logo-icon::before { inset: -3px; opacity: 0.35; }
  .nav-logo-img { width: 38px; height: 38px; }
  .guohui-icon { width: 14px; height: 14px; }
}

/* ── 超小屏（iPhone SE 等 <375px） ── */
@media (max-width: 375px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: clamp(28px, 11vw, 42px); }
  .section-title h2 { font-size: clamp(22px, 7vw, 36px); }
  .btn-glow { padding: 12px 24px; font-size: 13px; }
}

/* ── 文字溢出安全防护 ── */
.section-title h2,
.hero-title,
.vm-card h3,
.svc-card h3,
.client-label,
.cinfo-val {
  overflow-wrap: break-word;
  word-wrap: break-word;
  hyphens: auto;
}

/* ── 打印样式 ── */
@media print {
  body {
    background: #fff !important;
    color: #000 !important;
    font-size: 12pt;
    line-height: 1.5;
  }
  .mesh-bg, .stars-layer, #particles-canvas,
  .navbar, .nav-hamburger, .nav-mobile-menu,
  .hero-bg-rings, .hero-logo-float, .hero-float-tags,
  .orb, .mouse-glow, .qr-sparkle,
  .stars-dust { display: none !important; }

  * { animation: none !important; transition: none !important;
       box-shadow: none !important; filter: none !important;
       backdrop-filter: none !important; text-shadow: none !important; }

  body { overflow: visible !important; }
  .section { padding: 20px 0 !important; }
  .page-hero { padding-top: 20px !important; min-height: auto !important; }
  .hero-section { min-height: auto !important; padding-top: 0 !important; }

  a { color: #000 !important; text-decoration: underline; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 9pt; color: #666; }

  footer { border-top: 2pt solid #000; background: #f5f5f5 !important; }

  .glass { background: #f8f8f8 !important; border: 1pt solid #ddd !important; }
  .qr-img-wrap { box-shadow: none !important; border: 1pt solid #ccc !important; }
  img { max-width: 100% !important; page-break-inside: avoid; }
  h1, h2, h3 { page-break-after: avoid; break-after: avoid; }
}

/* ═══════════════════════════════════════════════════════════════
   Performance & Accessibility
   ═══════════════════════════════════════════════════════════════ */
/* GPU 加速层 */
.glass,
.svc-card, .why-card, .stat-card,
.video-card, .cta-box,
.navbar {
  transform: translateZ(0);
  backface-visibility: hidden;
}
/* prefers-reduced-motion：禁用所有动画 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  #particles-canvas, .stars-layer { display: none; }
}
/* 图片优化 */
img { image-rendering: -webkit-optimize-contrast; }
video { image-rendering: auto; }