/* 糖心vlog官网 - 全局样式 */

:root {

  --primary-start: #ffb800;

  --primary-end: #d6008d;

  --accent-red: #ff3b30;

  --bg-dark: #0a0a0a;

  --bg-card: #161616;

  --bg-card-hover: #1e1e1e;

  --text-primary: #ffffff;

  --text-secondary: #b0b0b0;

  --text-muted: #777777;

  --border-color: #2a2a2a;

  --gradient: linear-gradient(135deg, var(--primary-start), var(--primary-end));

  --shadow: 0 4px 24px rgba(214, 0, 141, 0.15);

  --radius: 12px;

  --header-h: 64px;

  --max-w: 1200px;

}



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



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



body {

  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;

  background: var(--bg-dark);

  color: var(--text-primary);

  line-height: 1.7;

  min-height: 100vh;

}



a { color: var(--primary-start); text-decoration: none; transition: color 0.2s; }

a:hover { color: var(--primary-end); }



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



.container { max-width: var(--max-w); margin: 0 auto; padding: 0 20px; }



/* Header */

.site-header {

  position: sticky;

  top: 0;

  z-index: 1000;

  background: rgba(10, 10, 10, 0.95);

  backdrop-filter: blur(12px);

  border-bottom: 1px solid var(--border-color);

  height: var(--header-h);

}



.header-inner {

  display: flex;

  align-items: center;

  justify-content: space-between;

  height: var(--header-h);

  max-width: var(--max-w);

  margin: 0 auto;

  padding: 0 20px;

}



.logo-link {

  display: flex;

  align-items: center;

  gap: 10px;

  color: var(--text-primary);

  font-weight: 700;

  font-size: 1.2rem;

}



.logo-link:hover { color: var(--text-primary); }

.logo-link img { width: 40px; height: 40px; border-radius: 10px; }



.nav-desktop { display: flex; gap: 28px; list-style: none; }

.nav-desktop a {

  color: var(--text-secondary);

  font-size: 0.95rem;

  font-weight: 500;

  position: relative;

  padding: 4px 0;

}

.nav-desktop a:hover,

.nav-desktop a.active { color: var(--text-primary); }

.nav-desktop a.active::after {

  content: "";

  position: absolute;

  bottom: -2px;

  left: 0;

  right: 0;

  height: 2px;

  background: var(--gradient);

  border-radius: 2px;

}



.btn-download {

  display: inline-flex;

  align-items: center;

  gap: 6px;

  padding: 8px 20px;

  background: var(--gradient);

  color: #fff;

  border-radius: 24px;

  font-size: 0.9rem;

  font-weight: 600;

  border: none;

  cursor: pointer;

  transition: opacity 0.2s, transform 0.2s;

}

.btn-download:hover { opacity: 0.9; color: #fff; transform: translateY(-1px); }



.menu-toggle {

  display: none;

  background: none;

  border: none;

  color: var(--text-primary);

  font-size: 1.5rem;

  cursor: pointer;

  padding: 4px;

}



.nav-mobile {

  display: none;

  position: fixed;

  top: var(--header-h);

  left: 0;

  right: 0;

  background: rgba(10, 10, 10, 0.98);

  border-bottom: 1px solid var(--border-color);

  padding: 16px 20px;

  z-index: 999;

}

.nav-mobile.open { display: block; }

.nav-mobile ul { list-style: none; }

.nav-mobile li { border-bottom: 1px solid var(--border-color); }

.nav-mobile a {

  display: block;

  padding: 14px 0;

  color: var(--text-secondary);

  font-size: 1rem;

}

.nav-mobile a:hover { color: var(--primary-start); }



/* Hero */

.hero {

  padding: 60px 0 40px;

  background: radial-gradient(ellipse at 30% 0%, rgba(255, 184, 0, 0.08) 0%, transparent 60%),

              radial-gradient(ellipse at 70% 0%, rgba(214, 0, 141, 0.08) 0%, transparent 60%);

}



.hero-grid {

  display: grid;

  grid-template-columns: 1fr 1fr;

  gap: 40px;

  align-items: center;

}



.hero h1 {

  font-size: 2.2rem;

  line-height: 1.3;

  margin-bottom: 16px;

  background: var(--gradient);

  -webkit-background-clip: text;

  -webkit-text-fill-color: transparent;

  background-clip: text;

}



.hero-desc {

  color: var(--text-secondary);

  font-size: 1.05rem;

  margin-bottom: 24px;

}



.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }



.btn-primary {

  padding: 12px 28px;

  background: var(--gradient);

  color: #fff;

  border-radius: 28px;

  font-weight: 600;

  font-size: 1rem;

  border: none;

  cursor: pointer;

  transition: transform 0.2s, box-shadow 0.2s;

}

.btn-primary:hover { color: #fff; transform: translateY(-2px); box-shadow: var(--shadow); }



.btn-outline {

  padding: 12px 28px;

  border: 2px solid var(--primary-start);

  color: var(--primary-start);

  border-radius: 28px;

  font-weight: 600;

  font-size: 1rem;

  background: transparent;

  cursor: pointer;

  transition: background 0.2s;

}

.btn-outline:hover { background: rgba(255, 184, 0, 0.1); color: var(--primary-start); }



.hero-image {

  border-radius: var(--radius);

  overflow: hidden;

  box-shadow: var(--shadow);

  border: 1px solid var(--border-color);

}



/* Section */

.section { padding: 50px 0; }

.section-title {

  font-size: 1.6rem;

  margin-bottom: 8px;

  text-align: center;

}

.section-subtitle {

  color: var(--text-secondary);

  text-align: center;

  margin-bottom: 36px;

  font-size: 0.95rem;

}

.section-title span {

  background: var(--gradient);

  -webkit-background-clip: text;

  -webkit-text-fill-color: transparent;

  background-clip: text;

}



/* Feature Grid */

.feature-grid {

  display: grid;

  grid-template-columns: repeat(3, 1fr);

  gap: 20px;

}



.feature-card {

  background: var(--bg-card);

  border: 1px solid var(--border-color);

  border-radius: var(--radius);

  padding: 28px 24px;

  transition: transform 0.2s, border-color 0.2s;

}

.feature-card:hover {

  transform: translateY(-4px);

  border-color: rgba(214, 0, 141, 0.3);

}

.feature-card h3 {

  font-size: 1.1rem;

  margin-bottom: 10px;

  color: var(--primary-start);

}

.feature-card p { color: var(--text-secondary); font-size: 0.92rem; }



/* Category Grid */

.category-grid {

  display: grid;

  grid-template-columns: repeat(4, 1fr);

  gap: 16px;

}



.category-card {

  position: relative;

  border-radius: var(--radius);

  overflow: hidden;

  border: 1px solid var(--border-color);

  aspect-ratio: 9/16;

  max-height: 320px;

}

.category-card img {

  width: 100%;

  height: 100%;

  object-fit: cover;

  transition: transform 0.3s;

}

.category-card:hover img { transform: scale(1.05); }

.category-overlay {

  position: absolute;

  bottom: 0;

  left: 0;

  right: 0;

  padding: 16px 12px 12px;

  background: linear-gradient(transparent, rgba(0,0,0,0.85));

}

.category-overlay h3 { font-size: 0.95rem; }

.category-overlay p { font-size: 0.8rem; color: var(--text-secondary); margin-top: 4px; }



/* Showcase */

.showcase-grid {

  display: grid;

  grid-template-columns: repeat(2, 1fr);

  gap: 24px;

}



.showcase-item {

  display: flex;

  gap: 20px;

  background: var(--bg-card);

  border: 1px solid var(--border-color);

  border-radius: var(--radius);

  overflow: hidden;

  transition: border-color 0.2s;

}

.showcase-item:hover { border-color: rgba(255, 184, 0, 0.3); }

.showcase-item img {

  width: 200px;

  min-height: 160px;

  object-fit: cover;

  flex-shrink: 0;

}

.showcase-body { padding: 20px; flex: 1; }

.showcase-body h3 { font-size: 1.05rem; margin-bottom: 8px; }

.showcase-body p { color: var(--text-secondary); font-size: 0.9rem; }



/* Content Article */

.content-article {

  background: var(--bg-card);

  border: 1px solid var(--border-color);

  border-radius: var(--radius);

  padding: 40px;

  margin: 20px 0;

}

.content-article h2 {

  font-size: 1.4rem;

  margin: 32px 0 16px;

  color: var(--primary-start);

  padding-bottom: 8px;

  border-bottom: 1px solid var(--border-color);

}

.content-article h2:first-child { margin-top: 0; }

.content-article h3 {

  font-size: 1.15rem;

  margin: 24px 0 12px;

  color: var(--text-primary);

}

.content-article p {

  color: var(--text-secondary);

  margin-bottom: 16px;

  text-align: justify;

}

.content-article ul, .content-article ol {

  color: var(--text-secondary);

  margin: 0 0 16px 24px;

}

.content-article li { margin-bottom: 8px; }



/* FAQ */

.faq-list { max-width: 800px; margin: 0 auto; }

.faq-item {

  background: var(--bg-card);

  border: 1px solid var(--border-color);

  border-radius: var(--radius);

  margin-bottom: 12px;

  overflow: hidden;

}

.faq-q {

  padding: 18px 24px;

  font-weight: 600;

  cursor: pointer;

  display: flex;

  justify-content: space-between;

  align-items: center;

  transition: background 0.2s;

}

.faq-q:hover { background: var(--bg-card-hover); }

.faq-q::after { content: "+"; font-size: 1.2rem; color: var(--primary-start); }

.faq-item.open .faq-q::after { content: "−"; }

.faq-a {

  display: none;

  padding: 0 24px 18px;

  color: var(--text-secondary);

  font-size: 0.92rem;

}

.faq-item.open .faq-a { display: block; }



/* Page Header */

.page-header {

  padding: 48px 0 32px;

  text-align: center;

  background: radial-gradient(ellipse at center, rgba(214, 0, 141, 0.06) 0%, transparent 70%);

}

.page-header h1 { font-size: 2rem; margin-bottom: 8px; }

.page-header p { color: var(--text-secondary); }



.breadcrumb {

  display: flex;

  gap: 8px;

  justify-content: center;

  font-size: 0.85rem;

  color: var(--text-muted);

  margin-top: 12px;

}

.breadcrumb a { color: var(--text-secondary); }

.breadcrumb span { color: var(--text-muted); }



/* Legal Page */

.legal-content {

  max-width: 860px;

  margin: 0 auto;

  padding: 40px 20px 60px;

}

.legal-content h2 {

  font-size: 1.25rem;

  margin: 28px 0 12px;

  color: var(--primary-start);

}

.legal-content p, .legal-content li {

  color: var(--text-secondary);

  margin-bottom: 12px;

  font-size: 0.95rem;

}

.legal-content ul, .legal-content ol { margin: 0 0 16px 24px; }

.legal-content .update-date {

  color: var(--text-muted);

  font-size: 0.85rem;

  margin-bottom: 24px;

}



/* Error Pages */

.error-page {

  min-height: calc(100vh - var(--header-h) - 200px);

  display: flex;

  align-items: center;

  justify-content: center;

  text-align: center;

  padding: 60px 20px;

}

.error-code {

  font-size: 6rem;

  font-weight: 800;

  background: var(--gradient);

  -webkit-background-clip: text;

  -webkit-text-fill-color: transparent;

  background-clip: text;

  line-height: 1;

}

.error-page h1 { font-size: 1.5rem; margin: 16px 0 8px; }

.error-page p { color: var(--text-secondary); margin-bottom: 24px; }



/* Footer */

.site-footer {

  background: #060606;

  border-top: 1px solid var(--border-color);

  padding: 48px 0 24px;

  margin-top: 40px;

}



.footer-grid {

  display: grid;

  grid-template-columns: 2fr 1fr 1fr 1fr;

  gap: 32px;

  margin-bottom: 32px;

}



.footer-brand img { width: 48px; border-radius: 10px; margin-bottom: 12px; }

.footer-brand p { color: var(--text-muted); font-size: 0.85rem; line-height: 1.6; }



.footer-col h4 {

  font-size: 0.95rem;

  margin-bottom: 16px;

  color: var(--text-primary);

}

.footer-col ul { list-style: none; }

.footer-col li { margin-bottom: 10px; }

.footer-col a { color: var(--text-muted); font-size: 0.88rem; }

.footer-col a:hover { color: var(--primary-start); }



.footer-bottom {

  border-top: 1px solid var(--border-color);

  padding-top: 20px;

  display: flex;

  justify-content: space-between;

  align-items: center;

  flex-wrap: wrap;

  gap: 12px;

}

.footer-bottom p { color: var(--text-muted); font-size: 0.82rem; }

.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }

.footer-links a { color: var(--text-muted); font-size: 0.82rem; }



/* Internal Links Bar */

.internal-links {

  display: flex;

  flex-wrap: wrap;

  gap: 10px;

  justify-content: center;

  padding: 24px 0;

}

.internal-links a {

  padding: 6px 16px;

  background: var(--bg-card);

  border: 1px solid var(--border-color);

  border-radius: 20px;

  color: var(--text-secondary);

  font-size: 0.85rem;

  transition: border-color 0.2s, color 0.2s;

}

.internal-links a:hover {

  border-color: var(--primary-start);

  color: var(--primary-start);

}



/* Responsive */

@media (max-width: 1024px) {

  .feature-grid { grid-template-columns: repeat(2, 1fr); }

  .category-grid { grid-template-columns: repeat(3, 1fr); }

  .footer-grid { grid-template-columns: repeat(2, 1fr); }

}



@media (max-width: 768px) {

  .nav-desktop, .header-inner .btn-download { display: none; }

  .menu-toggle { display: block; }



  .hero { padding: 36px 0 24px; }

  .hero-grid { grid-template-columns: 1fr; gap: 24px; }

  .hero h1 { font-size: 1.6rem; }

  .hero-image { max-width: 280px; margin: 0 auto; }



  .feature-grid { grid-template-columns: 1fr; }

  .category-grid { grid-template-columns: repeat(2, 1fr); }

  .showcase-grid { grid-template-columns: 1fr; }

  .showcase-item { flex-direction: column; }

  .showcase-item img { width: 100%; min-height: auto; aspect-ratio: 16/9; }



  .content-article { padding: 24px 18px; }

  .footer-grid { grid-template-columns: 1fr; }

  .footer-bottom { flex-direction: column; text-align: center; }



  .section { padding: 36px 0; }

  .section-title { font-size: 1.3rem; }

}



@media (max-width: 480px) {

  .category-grid { grid-template-columns: 1fr 1fr; gap: 10px; }

  .category-card { max-height: 220px; }

  .hero-actions { flex-direction: column; }

  .btn-primary, .btn-outline { text-align: center; justify-content: center; }

}