/* 糖心Vlog 主样式表 */
:root {
  --primary: #ff4e7a;
  --primary-light: #ff8fab;
  --primary-dark: #d63060;
  --secondary: #ff9a3c;
  --accent: #a855f7;
  --bg: #fff8f9;
  --bg2: #fff0f3;
  --text: #1a1a2e;
  --text-muted: #6b7280;
  --white: #ffffff;
  --border: #ffe0e8;
  --shadow: 0 4px 24px rgba(255,78,122,0.10);
  --radius: 16px;
  --radius-sm: 8px;
  --transition: all 0.3s cubic-bezier(.4,0,.2,1);
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'WenQuanYi Micro Hei', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }

img { max-width: 100%; height: auto; display: block; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ===== 顶部公告栏 ===== */
.top-bar {
  background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
  color: var(--white);
  text-align: center;
  padding: 8px 20px;
  font-size: 13px;
  letter-spacing: 0.5px;
}
.top-bar a { color: var(--white); text-decoration: underline; }

/* ===== 头部导航 ===== */
.site-header {
  background: var(--white);
  box-shadow: 0 2px 16px rgba(255,78,122,0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  max-width: 1200px;
  margin: 0 auto;
  gap: 20px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  white-space: nowrap;
}
.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 20px;
}
.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  transition: var(--transition);
}
.site-nav a:hover, .site-nav a.active {
  background: var(--bg2);
  color: var(--primary);
}
.nav-btn {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: var(--white) !important;
  border-radius: 20px !important;
  padding: 8px 20px !important;
}
.nav-btn:hover { opacity: 0.9; transform: translateY(-1px); }

/* ===== 搜索框 ===== */
.search-bar {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 12px 20px;
}
.search-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 10px;
}
.search-form {
  display: flex;
  align-items: center;
  background: var(--white);
  border: 2px solid var(--border);
  border-radius: 24px;
  padding: 6px 16px;
  flex: 1;
  max-width: 600px;
  transition: var(--transition);
}
.search-form:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255,78,122,0.1);
}
.search-form input {
  border: none;
  outline: none;
  background: transparent;
  font-size: 14px;
  flex: 1;
  color: var(--text);
  font-family: inherit;
}
.search-form button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--primary);
  font-size: 16px;
  padding: 0 4px;
  display: flex;
  align-items: center;
}
.search-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.search-tag {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 4px 12px;
  font-size: 12px;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}
.search-tag:hover { border-color: var(--primary); color: var(--primary); }

/* ===== 面包屑 ===== */
.breadcrumb {
  padding: 10px 0;
  font-size: 13px;
  color: var(--text-muted);
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { margin: 0 6px; }

/* ===== Hero 主视觉 ===== */
.hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero-banner.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.35;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
  width: 100%;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,78,122,0.2);
  border: 1px solid rgba(255,78,122,0.4);
  color: #ff8fab;
  border-radius: 20px;
  padding: 6px 16px;
  font-size: 13px;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 16px;
}
.hero h1 .highlight {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 16px;
  color: rgba(255,255,255,0.75);
  max-width: 560px;
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: var(--white);
  border: none;
  border-radius: 28px;
  padding: 14px 32px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,78,122,0.4); color: var(--white); }
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.5);
  border-radius: 28px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.btn-outline:hover { border-color: var(--white); background: rgba(255,255,255,0.1); color: var(--white); }
.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.hero-stat { text-align: left; }
.hero-stat .num {
  font-size: 28px;
  font-weight: 900;
  color: var(--white);
  line-height: 1;
}
.hero-stat .num span { color: var(--primary-light); }
.hero-stat .label { font-size: 13px; color: rgba(255,255,255,0.6); margin-top: 4px; }

/* ===== 通用 Section ===== */
.section { padding: 72px 0; }
.section-alt { background: var(--bg2); }
.section-header { text-align: center; margin-bottom: 48px; }
.section-tag {
  display: inline-block;
  background: linear-gradient(135deg, rgba(255,78,122,0.1) 0%, rgba(255,154,60,0.1) 100%);
  color: var(--primary);
  border: 1px solid rgba(255,78,122,0.2);
  border-radius: 20px;
  padding: 4px 16px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.3;
}
.section-desc {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ===== 视频卡片网格 ===== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.video-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover { transform: translateY(-6px); box-shadow: 0 12px 40px rgba(255,78,122,0.18); }
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #1a1a2e;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.05); }
.play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}
.video-card:hover .play-overlay { opacity: 1; }
.play-btn {
  width: 60px;
  height: 60px;
  background: rgba(255,78,122,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.8);
  transition: var(--transition);
}
.video-card:hover .play-btn { transform: scale(1); }
.play-btn svg { width: 24px; height: 24px; fill: white; margin-left: 4px; }
.video-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--primary);
  color: white;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 10px;
}
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.7);
  color: white;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 6px;
}
.video-info { padding: 16px; }
.video-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  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;
  gap: 12px;
  font-size: 12px;
  color: var(--text-muted);
}
.video-meta span { display: flex; align-items: center; gap: 4px; }

/* ===== 品牌故事 ===== */
.brand-story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.brand-story-img {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.brand-story-img img { width: 100%; height: 400px; object-fit: cover; }
.brand-story-text h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.3;
}
.brand-story-text p {
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.9;
}
.brand-features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 28px; }
.brand-feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: var(--bg2);
  border-radius: var(--radius-sm);
}
.feature-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.feature-text h4 { font-size: 14px; font-weight: 700; margin-bottom: 4px; }
.feature-text p { font-size: 12px; color: var(--text-muted); line-height: 1.5; }

/* ===== 场景推荐 ===== */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.scene-card {
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  aspect-ratio: 4/3;
  cursor: pointer;
  box-shadow: var(--shadow);
}
.scene-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.scene-card:hover img { transform: scale(1.06); }
.scene-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
}
.scene-overlay h3 { color: white; font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.scene-overlay p { color: rgba(255,255,255,0.8); font-size: 13px; }

/* ===== 用户评价 ===== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.review-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.review-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(255,78,122,0.15); }
.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.review-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border);
}
.review-user h4 { font-size: 15px; font-weight: 700; margin-bottom: 2px; }
.review-user span { font-size: 12px; color: var(--text-muted); }
.stars { color: #fbbf24; font-size: 14px; margin-bottom: 10px; }
.review-text { font-size: 14px; color: var(--text-muted); line-height: 1.8; }
.review-tag {
  display: inline-block;
  margin-top: 12px;
  background: var(--bg2);
  color: var(--primary);
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 10px;
  font-weight: 600;
}

/* ===== 达人推荐 ===== */
.influencer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.influencer-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.influencer-card:hover { transform: translateY(-4px); }
.influencer-img { aspect-ratio: 3/2; overflow: hidden; }
.influencer-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.influencer-card:hover .influencer-img img { transform: scale(1.05); }
.influencer-info { padding: 20px; }
.influencer-info h3 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.influencer-info p { font-size: 13px; color: var(--text-muted); line-height: 1.7; }
.influencer-stats { display: flex; gap: 16px; margin-top: 12px; }
.influencer-stats span { font-size: 12px; color: var(--text-muted); }
.influencer-stats strong { color: var(--primary); }

/* ===== 购买指南 ===== */
.guide-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.guide-steps::before {
  content: '';
  position: absolute;
  top: 36px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
  z-index: 0;
}
.guide-step {
  text-align: center;
  position: relative;
  z-index: 1;
}
.step-num {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 900;
  color: white;
  margin: 0 auto 16px;
  box-shadow: 0 4px 16px rgba(255,78,122,0.35);
}
.guide-step h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.guide-step p { font-size: 13px; color: var(--text-muted); line-height: 1.7; }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--white);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--primary-light); }
.faq-question {
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  user-select: none;
}
.faq-question::after {
  content: '+';
  font-size: 22px;
  color: var(--primary);
  font-weight: 300;
  transition: var(--transition);
  flex-shrink: 0;
}
.faq-item.open .faq-question::after { content: '−'; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
}
.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 24px 18px;
}
.faq-answer p { font-size: 14px; color: var(--text-muted); line-height: 1.8; }

/* ===== 联系我们 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.contact-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.contact-card:hover { transform: translateY(-4px); border-color: var(--primary-light); }
.contact-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin: 0 auto 16px;
}
.contact-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.contact-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.contact-card a { color: var(--primary); font-weight: 600; }

/* ===== 页脚 ===== */
.site-footer {
  background: #1a1a2e;
  color: rgba(255,255,255,0.7);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .logo { color: var(--white); margin-bottom: 16px; }
.footer-brand p { font-size: 13px; line-height: 1.8; max-width: 280px; }
.footer-col h4 {
  color: var(--white);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 13px; color: rgba(255,255,255,0.6); transition: var(--transition); }
.footer-col ul li a:hover { color: var(--primary-light); }
.footer-bottom {
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
}
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--primary-light); }
.footer-domain {
  color: var(--primary-light);
  font-weight: 600;
}

/* ===== 内页通用 ===== */
.page-hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  padding: 60px 0;
  text-align: center;
}
.page-hero h1 { font-size: 2.2rem; font-weight: 800; margin-bottom: 12px; }
.page-hero p { font-size: 16px; opacity: 0.9; }
.page-content { padding: 60px 0; }
.content-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}
.content-card h2 { font-size: 1.4rem; font-weight: 700; margin-bottom: 16px; color: var(--text); }
.content-card p { color: var(--text-muted); line-height: 1.9; margin-bottom: 12px; }
.content-card ul { padding-left: 20px; color: var(--text-muted); }
.content-card ul li { margin-bottom: 8px; line-height: 1.8; }

/* ===== 响应式 ===== */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

@media (max-width: 1024px) {
  .brand-story-grid { grid-template-columns: 1fr; gap: 32px; }
  .guide-steps { grid-template-columns: repeat(2, 1fr); }
  .guide-steps::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .hamburger { display: flex; }
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 16px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    gap: 4px;
  }
  .site-nav.open { display: flex; }
  .site-nav a { width: 100%; }
  .header-inner { position: relative; }
  .scene-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { min-height: 420px; }
  .hero h1 { font-size: 1.8rem; }
  .hero-stats { gap: 20px; }
  .guide-steps { grid-template-columns: 1fr 1fr; }
  .search-tags { display: none; }
}

@media (max-width: 480px) {
  .scene-grid { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: 1fr; }
  .guide-steps { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .btn-primary, .btn-outline { width: 100%; justify-content: center; }
}

/* ===== 动画 ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in { animation: fadeInUp 0.6s ease forwards; }

/* ===== 滚动条 ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--primary-light); border-radius: 3px; }