/* ================================================================
   福利姬 - 原创主题样式
   品牌色：#FF6B9D (糖心粉) | #FFB347 (蜜糖橙) | #A78BFA (紫罗兰)
   深色：#1A1A2E | 字体：PingFang SC / 微软雅黑
   ================================================================ */

/* ── 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", "微软雅黑", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #333;
  background: #fff;
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: color .3s; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; outline: none; background: none; font-family: inherit; }

/* ── CSS Variables ────────────────────────────────────────────── */
:root {
  --pink:    #FF6B9D;
  --orange:  #FFB347;
  --purple:  #A78BFA;
  --dark:    #1A1A2E;
  --dark2:   #16213E;
  --dark3:   #0F3460;
  --light:   #F8F9FA;
  --text:    #333333;
  --text2:   #666666;
  --text3:   #999999;
  --white:   #ffffff;
  --border:  #e8e8e8;
  --success: #10B981;
  --warn:    #F59E0B;
  --radius:  12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow:  0 2px 8px rgba(0,0,0,.08);
  --shadow-md: 0 8px 24px rgba(0,0,0,.12);
  --shadow-lg: 0 16px 48px rgba(0,0,0,.16);
  --transition: .3s ease;
  --gradient: linear-gradient(135deg, var(--pink), var(--orange));
  --gradient2: linear-gradient(135deg, var(--purple), var(--pink));
  --gradient-dark: linear-gradient(135deg, var(--dark), var(--dark2));
}

/* ── Typography ───────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--dark); }
h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }
h4 { font-size: 1.1rem; }
p  { color: var(--text2); line-height: 1.8; }

/* ── Layout ───────────────────────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section    { padding: 72px 0; }
.section-sm { padding: 48px 0; }
.section-lg { padding: 96px 0; }
.section-title {
  text-align: center;
  margin-bottom: 48px;
}
.section-title h2 {
  position: relative;
  display: inline-block;
  padding-bottom: 12px;
  margin-bottom: 12px;
}
.section-title h2::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 60px; height: 3px;
  background: var(--gradient);
  border-radius: 2px;
}
.section-title p { font-size: 1rem; color: var(--text2); }
.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; }
.gap-8  { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.text-center { text-align: center; }
.text-gradient {
  background: var(--gradient);
  -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: .95rem;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(255,107,157,.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,107,157,.5);
  color: var(--white);
}
.btn-outline {
  border: 2px solid var(--pink);
  color: var(--pink);
  background: transparent;
}
.btn-outline:hover {
  background: var(--pink);
  color: var(--white);
  transform: translateY(-2px);
}
.btn-dark {
  background: var(--dark);
  color: var(--white);
}
.btn-dark:hover {
  background: var(--dark2);
  transform: translateY(-2px);
  color: var(--white);
}
.btn-sm { padding: 8px 18px; font-size: .85rem; }
.btn-lg { padding: 16px 40px; font-size: 1.05rem; }

/* ── Tags / Badges ────────────────────────────────────────────── */
.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 50px;
  font-size: .75rem;
  font-weight: 600;
  background: rgba(255,107,157,.12);
  color: var(--pink);
}
.tag-orange { background: rgba(255,179,71,.15); color: var(--orange); }
.tag-purple { background: rgba(167,139,250,.15); color: var(--purple); }
.tag-green  { background: rgba(16,185,129,.12); color: var(--success); }
.badge-hot  { background: var(--gradient); color: #fff; font-size: .7rem; padding: 2px 8px; border-radius: 50px; }
.badge-new  { background: var(--success); color: #fff; font-size: .7rem; padding: 2px 8px; border-radius: 50px; }

/* ── Header / Navbar ──────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,.06);
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
}
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.nav-logo img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: cover;
}
.nav-logo-text {
  font-size: 1.2rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}
.nav-menu a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-weight: 500;
  color: var(--text);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-menu a:hover,
.nav-menu a.active {
  color: var(--pink);
  background: rgba(255,107,157,.08);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.nav-search-wrap {
  position: relative;
}
.nav-search {
  width: 200px;
  padding: 8px 36px 8px 14px;
  border: 1.5px solid var(--border);
  border-radius: 50px;
  font-size: .88rem;
  font-family: inherit;
  outline: none;
  transition: var(--transition);
  background: var(--light);
}
.nav-search:focus {
  border-color: var(--pink);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(255,107,157,.12);
}
.nav-search-btn {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text3);
  font-size: 1rem;
  transition: color .3s;
}
.nav-search-btn:hover { color: var(--pink); }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  cursor: pointer;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── Search Bar (below nav) ───────────────────────────────────── */
.search-bar-section {
  background: linear-gradient(135deg, #fff0f5, #fff8f0);
  border-bottom: 1px solid rgba(255,107,157,.1);
  padding: 14px 0;
}
.search-bar-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 700px;
  margin: 0 auto;
}
.search-bar-input {
  flex: 1;
  padding: 12px 20px;
  border: 2px solid rgba(255,107,157,.3);
  border-radius: 50px;
  font-size: .95rem;
  font-family: inherit;
  outline: none;
  background: #fff;
  transition: var(--transition);
}
.search-bar-input:focus {
  border-color: var(--pink);
  box-shadow: 0 0 0 4px rgba(255,107,157,.1);
}
.search-bar-btn {
  padding: 12px 28px;
  background: var(--gradient);
  color: #fff;
  border-radius: 50px;
  font-size: .95rem;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}
.search-bar-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255,107,157,.4);
}
.search-hot-tags {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  max-width: 700px;
  margin: 8px auto 0;
  font-size: .82rem;
  color: var(--text3);
}
.search-hot-tags a {
  color: var(--pink);
  background: rgba(255,107,157,.08);
  padding: 2px 10px;
  border-radius: 50px;
  font-size: .8rem;
  transition: var(--transition);
}
.search-hot-tags a:hover {
  background: var(--pink);
  color: #fff;
}

/* ── Hero Section ─────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 580px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--dark);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/hero-bg.jpg');
  background-size: cover;
  background-position: center;
  opacity: .35;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,26,46,.85) 0%, rgba(26,26,46,.5) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  padding: 80px 0;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,107,157,.2);
  border: 1px solid rgba(255,107,157,.4);
  color: #FFB3CC;
  padding: 6px 16px;
  border-radius: 50px;
  font-size: .82rem;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: .5px;
}
.hero-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  color: #fff;
  line-height: 1.2;
  margin-bottom: 16px;
}
.hero-title .brand { color: var(--pink); }
.hero-title .highlight {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  color: rgba(255,255,255,.75);
  font-size: 1.05rem;
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.hero-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}
.hero-stat {
  text-align: center;
}
.hero-stat .num {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--pink);
  line-height: 1;
}
.hero-stat .label {
  font-size: .8rem;
  color: rgba(255,255,255,.6);
  margin-top: 4px;
}
.hero-float {
  position: absolute;
  right: 5%;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 280px;
}
.hero-float-card {
  background: rgba(255,255,255,.1);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  animation: floatUp 3s ease-in-out infinite;
}
.hero-float-card:nth-child(2) { animation-delay: 1s; }
.hero-float-card:nth-child(3) { animation-delay: 2s; }
.hero-float-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.hero-float-info .title { color: #fff; font-size: .88rem; font-weight: 600; }
.hero-float-info .sub   { color: rgba(255,255,255,.6); font-size: .75rem; }
@keyframes floatUp {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-6px); }
}

/* ── Video Cards ──────────────────────────────────────────────── */
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.video-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #111;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.05); }
.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,.3);
  opacity: 0;
  transition: opacity .3s;
}
.video-card:hover .video-play-btn { opacity: 1; }
.play-icon {
  width: 56px;
  height: 56px;
  background: rgba(255,255,255,.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(.8);
  transition: transform .3s;
}
.video-card:hover .play-icon { transform: scale(1); }
.play-icon::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent var(--pink);
  margin-left: 4px;
}
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,.7);
  color: #fff;
  font-size: .72rem;
  padding: 2px 7px;
  border-radius: 4px;
}
.video-info {
  padding: 14px;
}
.video-title {
  font-size: .92rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 8px;
  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: .78rem;
  color: var(--text3);
}
.video-stats {
  display: flex;
  gap: 12px;
}
.video-stats span { display: flex; align-items: center; gap: 4px; }
.video-category {
  position: absolute;
  top: 8px;
  left: 8px;
}

/* ── Category Tabs ────────────────────────────────────────────── */
.cat-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.cat-tab {
  padding: 8px 18px;
  border-radius: 50px;
  font-size: .88rem;
  font-weight: 500;
  color: var(--text2);
  background: var(--light);
  border: 1.5px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
}
.cat-tab:hover,
.cat-tab.active {
  background: var(--gradient);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(255,107,157,.3);
}

/* ── Feature Cards ────────────────────────────────────────────── */
.feature-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(255,107,157,.2);
}
.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}
.feature-icon.purple { background: var(--gradient2); }
.feature-icon.orange { background: linear-gradient(135deg, var(--orange), #FF6B6B); }
.feature-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.feature-card p  { font-size: .88rem; color: var(--text2); }

/* ── AI Section ───────────────────────────────────────────────── */
.ai-section { background: var(--dark); }
.ai-section .section-title h2 { color: #fff; }
.ai-section .section-title p  { color: rgba(255,255,255,.6); }
.ai-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: var(--transition);
}
.ai-card:hover {
  background: rgba(255,107,157,.1);
  border-color: rgba(255,107,157,.3);
  transform: translateY(-4px);
}
.ai-card h3 { color: #fff; margin-bottom: 8px; }
.ai-card p  { color: rgba(255,255,255,.6); font-size: .88rem; }
.ai-badge {
  display: inline-block;
  background: var(--gradient);
  color: #fff;
  font-size: .7rem;
  padding: 2px 10px;
  border-radius: 50px;
  margin-bottom: 12px;
  font-weight: 700;
  letter-spacing: .5px;
}

/* ── Community Section ────────────────────────────────────────── */
.community-section { background: linear-gradient(135deg, #fff0f5, #f8f0ff); }
.community-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: var(--transition);
}
.community-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.community-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.community-card h4 { font-size: 1rem; margin-bottom: 6px; }
.community-card p  { font-size: .85rem; color: var(--text2); }

/* ── Expert Cards ─────────────────────────────────────────────── */
.expert-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-align: center;
}
.expert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.expert-avatar {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  max-height: 200px;
}
.expert-info { padding: 20px 16px; }
.expert-name { font-size: 1.05rem; font-weight: 700; margin-bottom: 4px; }
.expert-title { font-size: .82rem; color: var(--pink); font-weight: 600; margin-bottom: 8px; }
.expert-desc  { font-size: .82rem; color: var(--text2); margin-bottom: 12px; }
.expert-awards { display: flex; flex-wrap: wrap; gap: 4px; justify-content: center; margin-bottom: 12px; }
.expert-social { display: flex; gap: 8px; justify-content: center; }
.expert-social a {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--light);
  display: flex; align-items: center; justify-content: center;
  font-size: .75rem;
  color: var(--text2);
  transition: var(--transition);
}
.expert-social a:hover { background: var(--pink); color: #fff; }
.expert-actions { display: flex; gap: 8px; justify-content: center; margin-top: 12px; }

/* ── Reviews ──────────────────────────────────────────────────── */
.reviews-section { background: var(--light); }
.review-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.review-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.review-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.review-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
}
.review-name { font-weight: 600; font-size: .92rem; }
.review-date { font-size: .75rem; color: var(--text3); }
.review-stars { color: var(--orange); font-size: .85rem; margin-bottom: 8px; }
.review-text  { font-size: .88rem; color: var(--text2); line-height: 1.7; }
.review-tag   { margin-top: 10px; }

/* ── FAQ ──────────────────────────────────────────────────────── */
.faq-section { background: #fff; }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.open { border-color: rgba(255,107,157,.3); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  font-size: .95rem;
  font-weight: 600;
  color: var(--dark);
  background: #fff;
  text-align: left;
  gap: 12px;
  cursor: pointer;
  transition: var(--transition);
}
.faq-q:hover { background: rgba(255,107,157,.04); }
.faq-item.open .faq-q { color: var(--pink); }
.faq-arrow {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--light);
  display: flex; align-items: center; justify-content: center;
  font-size: .7rem;
  color: var(--text2);
  flex-shrink: 0;
  transition: transform .3s;
}
.faq-item.open .faq-arrow { transform: rotate(180deg); background: var(--pink); color: #fff; }
.faq-a {
  display: none;
  padding: 0 20px 18px;
  font-size: .88rem;
  color: var(--text2);
  line-height: 1.8;
}
.faq-item.open .faq-a { display: block; }

/* ── Partners ─────────────────────────────────────────────────── */
.partners-section { background: var(--light); }
.partner-logo {
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  font-size: .9rem;
  font-weight: 700;
  color: var(--text2);
  transition: var(--transition);
  min-height: 60px;
}
.partner-logo:hover { color: var(--pink); transform: translateY(-2px); box-shadow: var(--shadow-md); }

/* ── Contact Section ──────────────────────────────────────────── */
.contact-section { background: var(--dark); }
.contact-section .section-title h2 { color: #fff; }
.contact-section .section-title p  { color: rgba(255,255,255,.6); }
.contact-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius);
  padding: 28px 24px;
}
.contact-card h3 { color: #fff; margin-bottom: 16px; }
.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
  font-size: .88rem;
}
.contact-item:last-child { border-bottom: none; }
.contact-item .icon { font-size: 1.1rem; width: 20px; text-align: center; }
.contact-item .label { color: rgba(255,255,255,.5); width: 60px; flex-shrink: 0; }
.contact-item .value { color: rgba(255,255,255,.85); }
.qr-wrap {
  text-align: center;
  padding: 16px;
}
.qr-wrap img {
  width: 140px;
  height: 140px;
  border-radius: var(--radius-sm);
  margin: 0 auto 8px;
  border: 3px solid rgba(255,255,255,.1);
}
.qr-wrap .qr-label { color: rgba(255,255,255,.6); font-size: .8rem; }

/* ── Share Section ────────────────────────────────────────────── */
.share-bar {
  background: rgba(255,255,255,.04);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.share-bar .label { color: rgba(255,255,255,.6); font-size: .88rem; white-space: nowrap; }
.share-btns { display: flex; gap: 10px; flex-wrap: wrap; }
.share-btn {
  padding: 8px 16px;
  border-radius: 50px;
  font-size: .82rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
  cursor: pointer;
}
.share-btn:hover { transform: translateY(-2px); }
.share-wechat  { background: #07C160; color: #fff; }
.share-weibo   { background: #E6162D; color: #fff; }
.share-douyin  { background: #000; color: #fff; border: 1px solid #333; }
.share-bilibili{ background: #00A1D6; color: #fff; }

/* ── How To Join ──────────────────────────────────────────────── */
.howto-section { background: linear-gradient(135deg, #fff0f5, #f0f0ff); }
.howto-step {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px dashed rgba(255,107,157,.2);
}
.howto-step:last-child { border-bottom: none; }
.step-num {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  font-size: 1.1rem;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.step-content h4 { font-size: 1rem; margin-bottom: 4px; }
.step-content p  { font-size: .88rem; color: var(--text2); }

/* ── Footer ───────────────────────────────────────────────────── */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,.7);
  padding: 56px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand .logo-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-brand img { width: 40px; height: 40px; border-radius: 10px; }
.footer-brand .logo-text {
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
}
.footer-brand p { font-size: .85rem; line-height: 1.8; margin-bottom: 16px; }
.footer-social { display: flex; gap: 8px; }
.footer-social a {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: rgba(255,255,255,.08);
  display: flex; align-items: center; justify-content: center;
  font-size: .8rem;
  transition: var(--transition);
}
.footer-social a:hover { background: var(--pink); color: #fff; }
.footer-col h4 {
  color: #fff;
  font-size: .95rem;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid rgba(255,107,157,.3);
  display: inline-block;
}
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a {
  font-size: .85rem;
  color: rgba(255,255,255,.6);
  transition: var(--transition);
}
.footer-col ul li a:hover { color: var(--pink); padding-left: 4px; }
.footer-bottom {
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: .82rem;
  color: rgba(255,255,255,.4);
}
.footer-bottom a { color: rgba(255,255,255,.5); }
.footer-bottom a:hover { color: var(--pink); }
.update-time { color: rgba(255,255,255,.4); font-size: .78rem; }

/* ── Inner Page Hero ──────────────────────────────────────────── */
.page-hero {
  background: var(--dark);
  padding: 56px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(255,107,157,.15) 0%, transparent 70%);
}
.page-hero h1 { color: #fff; position: relative; }
.page-hero p  { color: rgba(255,255,255,.6); margin-top: 8px; position: relative; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .82rem;
  color: rgba(255,255,255,.5);
  justify-content: center;
  margin-bottom: 16px;
  position: relative;
}
.breadcrumb a { color: rgba(255,255,255,.6); }
.breadcrumb a:hover { color: var(--pink); }
.breadcrumb .sep { color: rgba(255,255,255,.3); }

/* ── Toast ────────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--dark);
  color: #fff;
  padding: 12px 24px;
  border-radius: 50px;
  font-size: .88rem;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transition: all .3s;
  z-index: 9999;
  pointer-events: none;
  white-space: nowrap;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── Mobile Menu ──────────────────────────────────────────────── */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 999;
}
.mobile-menu.open { display: block; }
.mobile-menu-inner {
  position: absolute;
  top: 0; left: 0;
  width: 280px;
  height: 100%;
  background: #fff;
  padding: 24px;
  overflow-y: auto;
  transform: translateX(-100%);
  transition: transform .3s;
}
.mobile-menu.open .mobile-menu-inner { transform: translateX(0); }
.mobile-menu-inner a {
  display: block;
  padding: 14px 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--dark);
  border-bottom: 1px solid var(--border);
}
.mobile-menu-inner a:hover { color: var(--pink); }

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-float { display: none; }
}
@media (max-width: 768px) {
  .section { padding: 48px 0; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .video-grid { grid-template-columns: 1fr; }
  .nav-menu { display: none; }
  .nav-search-wrap { display: none; }
  .hamburger { display: flex; }
  .hero { min-height: 480px; }
  .hero-content { padding: 60px 0; }
  .hero-stats { gap: 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .search-bar-inner { flex-direction: column; }
  .search-bar-input { width: 100%; }
}
@media (max-width: 480px) {
  .grid-4 { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .btn-lg { padding: 14px 28px; font-size: .95rem; }
}

/* ── Utility ──────────────────────────────────────────────────── */
.mt-8  { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.hidden { display: none !important; }
.show   { display: block !important; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ── Lazy Load ────────────────────────────────────────────────── */
img[data-src] { opacity: 0; transition: opacity .4s; }
img.loaded    { opacity: 1; }

/* ── Scroll Animation ─────────────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}