/* ===================================================
   四虎视频 - 主样式文件
   Brand: 四虎视频 | Domain: y87oa7.cn
   =================================================== */

/* ---- CSS变量 ---- */
:root {
  --primary: #e8315a;
  --primary-dark: #c01f45;
  --primary-light: #ff6b8a;
  --secondary: #ff9eb5;
  --accent: #ffcc44;
  --bg-dark: #0f0f14;
  --bg-card: #1a1a24;
  --bg-card2: #22222e;
  --text-main: #f0f0f5;
  --text-muted: #9090a8;
  --text-light: #c8c8d8;
  --border: #2e2e40;
  --gradient-main: linear-gradient(135deg, #e8315a 0%, #ff6b8a 50%, #ffcc44 100%);
  --gradient-card: linear-gradient(180deg, rgba(232,49,90,0.08) 0%, rgba(15,15,20,0) 100%);
  --shadow-card: 0 4px 24px rgba(232,49,90,0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --transition: 0.28s cubic-bezier(0.4,0,0.2,1);
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: "PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ---- Typography ---- */
h1,h2,h3,h4,h5,h6 { font-weight: 700; line-height: 1.3; }
h1 { font-size: clamp(1.8rem, 4vw, 3rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2.2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.5rem); }
h4 { font-size: 1.1rem; }
p { color: var(--text-light); }

/* ---- Layout ---- */
.container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }
.section { padding: 70px 0; }
.section-sm { padding: 40px 0; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-gap { display: flex; gap: 16px; align-items: center; }

/* ---- Section Header ---- */
.section-header { text-align: center; margin-bottom: 50px; }
.section-header h2 { margin-bottom: 12px; }
.section-header p { color: var(--text-muted); max-width: 560px; margin: 0 auto; }
.section-tag {
  display: inline-block;
  background: rgba(232,49,90,0.15);
  color: var(--primary-light);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
  border: 1px solid rgba(232,49,90,0.25);
}

/* ---- Gradient Text ---- */
.grad-text {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient-main);
  color: #fff;
  box-shadow: 0 4px 20px rgba(232,49,90,0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(232,49,90,0.45); }
.btn-outline {
  border: 1.5px solid var(--primary);
  color: var(--primary-light);
  background: transparent;
}
.btn-outline:hover { background: rgba(232,49,90,0.1); }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }
.btn-ghost { color: var(--text-muted); padding: 8px 16px; border-radius: var(--radius-sm); }
.btn-ghost:hover { background: var(--bg-card2); color: var(--text-main); }

/* ---- Header / Navbar ---- */
#site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(15,15,20,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.site-logo img.logo-img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  object-fit: cover;
}
.site-logo .logo-text {
  font-size: 1.25rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  color: var(--text-light);
  transition: var(--transition);
  white-space: nowrap;
}
.main-nav a:hover, .main-nav a.active {
  color: var(--primary-light);
  background: rgba(232,49,90,0.1);
}
.header-actions { display: flex; align-items: center; gap: 10px; }
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---- Search Bar ---- */
.search-bar-wrap {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}
.search-bar-inner {
  display: flex;
  align-items: center;
  max-width: 680px;
  margin: 0 auto;
  background: var(--bg-card2);
  border: 1.5px solid var(--border);
  border-radius: 50px;
  padding: 0 6px 0 20px;
  transition: var(--transition);
}
.search-bar-inner:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(232,49,90,0.12); }
.search-bar-inner input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text-main);
  font-size: 0.95rem;
  padding: 10px 0;
  font-family: inherit;
}
.search-bar-inner input::placeholder { color: var(--text-muted); }
.search-bar-inner button {
  background: var(--gradient-main);
  color: #fff;
  border-radius: 50px;
  padding: 8px 20px;
  font-size: 0.88rem;
  font-weight: 600;
  transition: var(--transition);
}
.search-bar-inner button:hover { opacity: 0.88; }

/* ---- Hero Section ---- */
.hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.38);
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(15,15,20,0.95) 0%, rgba(15,15,20,0.5) 60%, transparent 100%);
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 620px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(232,49,90,0.18);
  border: 1px solid rgba(232,49,90,0.35);
  color: var(--primary-light);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 20px;
}
.hero-badge::before { content: "●"; font-size: 0.6rem; animation: pulse 1.5s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.3} }
.hero h1 { margin-bottom: 18px; }
.hero p { font-size: 1.05rem; color: var(--text-light); margin-bottom: 32px; max-width: 500px; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.hero-stat-num {
  font-size: 1.6rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-stat-label { font-size: 0.82rem; color: var(--text-muted); }

/* ---- Video Cards ---- */
.video-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-4px);
  border-color: rgba(232,49,90,0.4);
  box-shadow: var(--shadow-card);
}
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--bg-card2);
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.06); }
.play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.3);
  opacity: 0;
  transition: var(--transition);
}
.video-card:hover .play-btn { opacity: 1; }
.play-icon {
  width: 52px;
  height: 52px;
  background: rgba(232,49,90,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  box-shadow: 0 4px 20px rgba(232,49,90,0.5);
  transform: scale(0.85);
  transition: var(--transition);
}
.video-card:hover .play-icon { transform: scale(1); }
.play-icon svg { width: 20px; height: 20px; fill: #fff; margin-left: 3px; }
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
}
.video-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: 0.04em;
}
.video-info { padding: 14px; }
.video-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.video-stats { display: flex; gap: 12px; }
.video-stats span { display: flex; align-items: center; gap: 4px; }

/* ---- Portrait Cards (竖版视频卡片) ---- */
.portrait-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
}
.portrait-card:hover {
  transform: translateY(-4px);
  border-color: rgba(232,49,90,0.4);
  box-shadow: var(--shadow-card);
}
.portrait-thumb {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
}
.portrait-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.portrait-card:hover .portrait-thumb img { transform: scale(1.06); }
.portrait-card:hover .play-btn { opacity: 1; }
.portrait-info { padding: 12px; }
.portrait-title { font-size: 0.88rem; font-weight: 600; margin-bottom: 6px; }
.portrait-meta { font-size: 0.78rem; color: var(--text-muted); display: flex; gap: 10px; }

/* ---- Category Tabs ---- */
.cat-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 32px; }
.cat-tab {
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.88rem;
  font-weight: 600;
  border: 1.5px solid var(--border);
  color: var(--text-muted);
  transition: var(--transition);
  cursor: pointer;
  background: var(--bg-card);
}
.cat-tab:hover, .cat-tab.active {
  border-color: var(--primary);
  color: var(--primary-light);
  background: rgba(232,49,90,0.1);
}

/* ---- Feature Cards ---- */
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-main);
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover { border-color: rgba(232,49,90,0.3); box-shadow: var(--shadow-card); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 52px;
  height: 52px;
  background: rgba(232,49,90,0.12);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}
.feature-card h3 { margin-bottom: 10px; }
.feature-card p { font-size: 0.9rem; }

/* ---- Expert Cards ---- */
.expert-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  text-align: center;
}
.expert-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); border-color: rgba(232,49,90,0.3); }
.expert-avatar {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  object-position: top;
}
.expert-info { padding: 20px; }
.expert-name { font-size: 1.05rem; font-weight: 700; margin-bottom: 4px; }
.expert-role { font-size: 0.82rem; color: var(--primary-light); margin-bottom: 10px; }
.expert-desc { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 14px; }
.expert-awards { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin-bottom: 14px; }
.award-tag {
  font-size: 0.72rem;
  background: rgba(255,204,68,0.12);
  color: var(--accent);
  border: 1px solid rgba(255,204,68,0.25);
  padding: 2px 8px;
  border-radius: 4px;
}
.expert-btns { display: flex; gap: 8px; justify-content: center; }

/* ---- Review Cards ---- */
.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}
.review-card:hover { border-color: rgba(232,49,90,0.25); }
.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--bg-card2);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary-light);
}
.review-user-name { font-weight: 700; font-size: 0.95rem; }
.review-date { font-size: 0.78rem; color: var(--text-muted); }
.review-stars { color: var(--accent); font-size: 0.9rem; margin-bottom: 10px; }
.review-text { font-size: 0.9rem; color: var(--text-light); line-height: 1.7; }
.review-tag { font-size: 0.75rem; color: var(--primary-light); margin-top: 10px; }

/* ---- FAQ ---- */
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.open { border-color: rgba(232,49,90,0.3); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
  gap: 12px;
}
.faq-question:hover { color: var(--primary-light); }
.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(232,49,90,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
  color: var(--primary-light);
  transition: var(--transition);
}
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 22px;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.8;
}
.faq-item.open .faq-answer { max-height: 300px; padding: 0 22px 18px; }

/* ---- Partner Logos ---- */
.partner-grid { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; align-items: center; }
.partner-logo {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 28px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-muted);
  transition: var(--transition);
  white-space: nowrap;
}
.partner-logo:hover { border-color: var(--primary); color: var(--primary-light); }

/* ---- Contact Section ---- */
.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}
.contact-item { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 20px; }
.contact-icon {
  width: 44px;
  height: 44px;
  background: rgba(232,49,90,0.12);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.contact-label { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 2px; }
.contact-value { font-weight: 600; font-size: 0.95rem; }
.qr-grid { display: flex; gap: 20px; flex-wrap: wrap; }
.qr-item { text-align: center; }
.qr-box {
  width: 110px;
  height: 110px;
  background: #fff;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
  overflow: hidden;
}
.qr-box img { width: 100%; height: 100%; object-fit: cover; }
.qr-label { font-size: 0.78rem; color: var(--text-muted); }

/* ---- Share Bar ---- */
.share-bar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 600;
  border: 1.5px solid var(--border);
  color: var(--text-muted);
  transition: var(--transition);
  cursor: pointer;
  background: var(--bg-card);
}
.share-btn:hover { border-color: var(--primary); color: var(--primary-light); }

/* ---- Footer ---- */
#site-footer {
  background: #0a0a0f;
  border-top: 1px solid var(--border);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand .logo-text { font-size: 1.4rem; font-weight: 800; }
.footer-brand p { font-size: 0.88rem; color: var(--text-muted); margin: 14px 0 20px; line-height: 1.8; }
.footer-col h4 { font-size: 0.95rem; margin-bottom: 16px; color: var(--text-main); }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 0.88rem; color: var(--text-muted); transition: var(--transition); }
.footer-col ul li a:hover { color: var(--primary-light); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { font-size: 0.82rem; color: var(--text-muted); }
.footer-bottom a { color: var(--text-muted); transition: var(--transition); }
.footer-bottom a:hover { color: var(--primary-light); }
.footer-social { display: flex; gap: 10px; }
.social-icon {
  width: 36px;
  height: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: var(--transition);
}
.social-icon:hover { border-color: var(--primary); color: var(--primary-light); background: rgba(232,49,90,0.1); }

/* ---- Breadcrumb ---- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 14px 0;
}
.breadcrumb a { color: var(--text-muted); transition: var(--transition); }
.breadcrumb a:hover { color: var(--primary-light); }
.breadcrumb span { color: var(--text-light); }
.breadcrumb .sep { color: var(--border); }

/* ---- Stat Counter ---- */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition);
}
.stat-card:hover { border-color: rgba(232,49,90,0.3); }
.stat-num {
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
}
.stat-label { font-size: 0.85rem; color: var(--text-muted); }

/* ---- How-to Steps ---- */
.step-list { counter-reset: step; }
.step-item {
  display: flex;
  gap: 20px;
  margin-bottom: 28px;
  align-items: flex-start;
}
.step-num {
  counter-increment: step;
  width: 44px;
  height: 44px;
  background: var(--gradient-main);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}
.step-content h4 { margin-bottom: 6px; }
.step-content p { font-size: 0.88rem; }

/* ---- Tag Cloud ---- */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 0.8rem;
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: var(--bg-card);
  transition: var(--transition);
  cursor: pointer;
}
.tag:hover { border-color: var(--primary); color: var(--primary-light); background: rgba(232,49,90,0.08); }

/* ---- Notification Bar ---- */
.notif-bar {
  background: linear-gradient(90deg, var(--primary-dark), var(--primary));
  color: #fff;
  text-align: center;
  padding: 9px 20px;
  font-size: 0.85rem;
  font-weight: 500;
}
.notif-bar a { color: #fff; text-decoration: underline; }

/* ---- Mobile Menu ---- */
.mobile-nav {
  display: none;
  flex-direction: column;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 12px 0;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 12px 20px;
  font-size: 0.95rem;
  color: var(--text-light);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a:hover { color: var(--primary-light); background: rgba(232,49,90,0.06); }

/* ---- Lazy Load ---- */
img[data-src] { opacity: 0; transition: opacity 0.4s ease; }
img.loaded { opacity: 1; }

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* ---- Animations ---- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeInUp 0.6s ease both; }
.fade-in-d1 { animation-delay: 0.1s; }
.fade-in-d2 { animation-delay: 0.2s; }
.fade-in-d3 { animation-delay: 0.3s; }

/* ---- Responsive ---- */
@media (max-width: 1100px) {
  .grid-4 { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .main-nav { display: none; }
  .menu-toggle { display: flex; }
  .hero { min-height: 420px; }
  .hero-stats { gap: 20px; }
}
@media (max-width: 600px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 48px 0; }
  .hero { min-height: 360px; }
  .hero-stats { flex-wrap: wrap; gap: 16px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .container { padding: 0 14px; }
}