/* 蘑菇视频 - 侘寂禅意美学主题样式 */
:root {
  --color-bg: #f5f2ed;
  --color-surface: #ede9e2;
  --color-border: #d4cfc6;
  --color-text: #2c2a26;
  --color-muted: #7a7670;
  --color-accent: #5c7a6e;
  --color-brown: #7a5c3a;
  --color-ink: #1a1814;
  --font-main: 'Noto Serif SC', 'Source Han Serif CN', 'STSong', serif;
  --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --radius: 2px;
  --shadow: 0 2px 16px rgba(44,42,38,0.07);
  --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

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

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-main);
  line-height: 1.8;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-main);
  font-weight: 400;
  letter-spacing: 0.08em;
  line-height: 1.4;
  color: var(--color-ink);
}
h1 { font-size: clamp(1.8rem, 4vw, 3rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }
p { margin-bottom: 1em; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent); }

/* ===== HEADER & NAV ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245,242,237,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  padding: 0 2rem;
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.site-logo {
  font-size: 1.3rem;
  letter-spacing: 0.15em;
  font-weight: 500;
  color: var(--color-ink);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.site-logo span { color: var(--color-accent); }
.site-nav { display: flex; gap: 2rem; list-style: none; }
.site-nav a {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  padding: 0.25rem 0;
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}
.site-nav a:hover, .site-nav a.active {
  color: var(--color-ink);
  border-bottom-color: var(--color-accent);
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 1px;
  background: var(--color-ink);
  transition: var(--transition);
}

/* ===== SEARCH BAR ===== */
.search-bar-wrap {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0.6rem 2rem;
}
.search-bar-inner {
  max-width: 680px;
  margin: 0 auto;
  position: relative;
}
.search-bar-inner input {
  width: 100%;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 0.5rem 3rem 0.5rem 1.2rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition);
}
.search-bar-inner input:focus { border-color: var(--color-accent); }
.search-bar-inner input::placeholder { color: var(--color-muted); }
.search-btn {
  position: absolute;
  right: 0.8rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-muted);
  font-size: 1rem;
  transition: color var(--transition);
}
.search-btn:hover { color: var(--color-accent); }

/* ===== BANNER ===== */
.hero-banner {
  position: relative;
  height: 90vh;
  min-height: 520px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-banner img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.88) saturate(0.7);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(245,242,237,0.15) 0%, rgba(245,242,237,0.55) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2rem;
  max-width: 700px;
}
.hero-brand {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  letter-spacing: 0.25em;
  color: var(--color-ink);
  margin-bottom: 1rem;
  text-shadow: 0 2px 12px rgba(245,242,237,0.6);
}
.hero-slogan {
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  color: var(--color-muted);
  letter-spacing: 0.12em;
  margin-bottom: 2.5rem;
}
.hero-btns { display: flex; gap: 1.2rem; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 0.7rem 2.2rem;
  border: 1px solid var(--color-ink);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  color: var(--color-ink);
  background: rgba(245,242,237,0.7);
  backdrop-filter: blur(4px);
  cursor: pointer;
  transition: all var(--transition);
  border-radius: var(--radius);
}
.btn:hover {
  background: var(--color-ink);
  color: var(--color-bg);
}
.btn-accent {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}
.btn-accent:hover { background: var(--color-brown); border-color: var(--color-brown); }

/* ===== SECTION COMMON ===== */
.section {
  padding: 5rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}
.section-full {
  padding: 5rem 2rem;
  background: var(--color-surface);
}
.section-full .section-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.section-title {
  text-align: center;
  margin-bottom: 0.5rem;
  letter-spacing: 0.15em;
}
.section-subtitle {
  text-align: center;
  color: var(--color-muted);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  margin-bottom: 3rem;
}
.divider {
  width: 40px;
  height: 1px;
  background: var(--color-accent);
  margin: 1rem auto 2rem;
}

/* ===== VIDEO CARDS ===== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}
.video-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
  position: relative;
}
.video-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(44,42,38,0.13);
}
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-surface);
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition), filter var(--transition);
}
.video-card:hover .video-thumb img {
  transform: scale(1.04);
  filter: brightness(0.85) saturate(0.8);
}
.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
  background: rgba(26,24,20,0.25);
}
.video-card:hover .video-play-btn { opacity: 1; }
.play-icon {
  width: 56px;
  height: 56px;
  background: rgba(245,242,237,0.92);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
  transition: transform var(--transition);
}
.video-card:hover .play-icon { transform: scale(1.1); }
.play-icon::after {
  content: '';
  width: 0;
  height: 0;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-left: 18px solid var(--color-ink);
  margin-left: 4px;
}
/* Light/shadow breathing texture on hover */
.video-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 40%, rgba(255,255,255,0.18) 0%, transparent 60%),
              url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}
.video-card:hover .video-thumb::after { opacity: 1; }

.video-info { padding: 1rem 1.2rem 1.2rem; }
.video-title {
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  line-height: 1.5;
  color: var(--color-ink);
}
.video-meta {
  display: flex;
  gap: 1rem;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--color-muted);
}
.video-meta span { display: flex; align-items: center; gap: 0.3rem; }

/* ===== STORY SECTION ===== */
.story-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.story-text h2 { margin-bottom: 1rem; }
.story-text p { color: var(--color-muted); line-height: 2; }
.story-img {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: var(--radius);
}
.story-img img { width: 100%; height: 100%; object-fit: cover; }
.story-img::before {
  content: '';
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(92,122,110,0.3);
  z-index: 1;
  pointer-events: none;
}

/* ===== GALLERY ===== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
.gallery-item {
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: var(--radius);
  cursor: pointer;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition), filter var(--transition);
  filter: saturate(0.7);
}
.gallery-item:hover img { transform: scale(1.06); filter: saturate(1); }

/* ===== AI MODULE ===== */
.ai-module {
  background: linear-gradient(135deg, var(--color-surface) 0%, #e8e3d8 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 3rem;
  text-align: center;
}
.ai-module h2 { margin-bottom: 1rem; }
.ai-module p { color: var(--color-muted); max-width: 560px; margin: 0 auto 2rem; }
.ai-tags { display: flex; flex-wrap: wrap; gap: 0.6rem; justify-content: center; margin-bottom: 2rem; }
.ai-tag {
  background: rgba(92,122,110,0.12);
  border: 1px solid rgba(92,122,110,0.25);
  color: var(--color-accent);
  padding: 0.3rem 0.9rem;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  border-radius: 20px;
  letter-spacing: 0.05em;
}

/* ===== CREATORS ===== */
.creators-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 2rem;
}
.creator-card { text-align: center; }
.creator-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 1rem;
  border: 2px solid var(--color-border);
}
.creator-avatar img { width: 100%; height: 100%; object-fit: cover; filter: saturate(0.6); }
.creator-name { font-size: 1rem; letter-spacing: 0.1em; margin-bottom: 0.3rem; }
.creator-role { font-family: var(--font-sans); font-size: 0.82rem; color: var(--color-muted); }

/* ===== REVIEWS ===== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}
.review-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  position: relative;
}
.review-card::before {
  content: '\201C';
  position: absolute;
  top: 0.8rem;
  left: 1.2rem;
  font-size: 3rem;
  color: var(--color-border);
  font-family: Georgia, serif;
  line-height: 1;
}
.review-text {
  font-size: 0.92rem;
  color: var(--color-muted);
  line-height: 1.9;
  padding-top: 1.5rem;
  margin-bottom: 1rem;
}
.review-user {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--color-accent);
  letter-spacing: 0.08em;
}
.stars { color: #c9a84c; font-size: 0.8rem; margin-bottom: 0.3rem; }

/* ===== FAQ ===== */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 1.2rem 0;
}
.faq-question {
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  user-select: none;
}
.faq-question::after {
  content: '+';
  font-size: 1.2rem;
  color: var(--color-muted);
  flex-shrink: 0;
  transition: transform var(--transition);
}
.faq-item.open .faq-question::after { transform: rotate(45deg); }
.faq-answer {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  color: var(--color-muted);
  line-height: 1.8;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}
.faq-item.open .faq-answer { max-height: 200px; padding-top: 0.8rem; }

/* ===== PARTNERS ===== */
.partners-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  justify-content: center;
  margin-bottom: 3rem;
}
.partner-logo {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem 2rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-muted);
  letter-spacing: 0.08em;
  min-width: 120px;
  text-align: center;
}

/* ===== CONTACT ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2rem;
}
.contact-block h3 { margin-bottom: 1rem; font-size: 1rem; letter-spacing: 0.1em; }
.contact-block p {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  color: var(--color-muted);
  line-height: 1.9;
}
.qr-placeholder {
  width: 100px;
  height: 100px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--color-muted);
  text-align: center;
  margin-top: 0.8rem;
}

/* ===== INNER PAGE HERO ===== */
.page-hero {
  padding: 4rem 2rem 3rem;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
}
.page-hero h1 { margin-bottom: 0.5rem; }
.page-hero p {
  color: var(--color-muted);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  max-width: 560px;
  margin: 0 auto;
}
.breadcrumb {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}
.breadcrumb a { color: var(--color-accent); }
.breadcrumb span { margin: 0 0.4rem; }

/* ===== ARTICLE CARDS ===== */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
}
.article-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition);
}
.article-card:hover { transform: translateY(-3px); }
.article-thumb {
  aspect-ratio: 16/9;
  overflow: hidden;
}
.article-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.7);
  transition: transform var(--transition), filter var(--transition);
}
.article-card:hover .article-thumb img { transform: scale(1.04); filter: saturate(0.9); }
.article-body { padding: 1.2rem; }
.article-tag {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}
.article-title { font-size: 1rem; margin-bottom: 0.5rem; line-height: 1.5; }
.article-excerpt {
  font-family: var(--font-sans);
  font-size: 0.84rem;
  color: var(--color-muted);
  line-height: 1.7;
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--color-ink);
  color: rgba(245,242,237,0.7);
  padding: 3rem 2rem 1.5rem;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(245,242,237,0.1);
  margin-bottom: 1.5rem;
}
.footer-brand-name {
  font-size: 1.4rem;
  letter-spacing: 0.2em;
  color: rgba(245,242,237,0.9);
  margin-bottom: 0.8rem;
}
.footer-desc {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  line-height: 1.9;
  color: rgba(245,242,237,0.5);
}
.footer-col h4 {
  font-size: 0.88rem;
  letter-spacing: 0.12em;
  color: rgba(245,242,237,0.8);
  margin-bottom: 1rem;
  font-weight: 400;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 0.5rem; }
.footer-col ul a {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: rgba(245,242,237,0.45);
  transition: color var(--transition);
}
.footer-col ul a:hover { color: rgba(245,242,237,0.85); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.8rem;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: rgba(245,242,237,0.35);
}
.footer-social { display: flex; gap: 1rem; }
.footer-social a {
  color: rgba(245,242,237,0.4);
  font-size: 0.82rem;
  transition: color var(--transition);
}
.footer-social a:hover { color: rgba(245,242,237,0.8); }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .story-wrap { grid-template-columns: 1fr; gap: 2rem; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 768px) {
  .site-nav { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: rgba(245,242,237,0.98); padding: 1rem 2rem; border-bottom: 1px solid var(--color-border); gap: 0.8rem; }
  .site-nav.open { display: flex; }
  .nav-toggle { display: flex; }
  .hero-banner { height: 70vh; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 1.5rem; }
  .section { padding: 3rem 1.2rem; }
}
@media (max-width: 480px) {
  .video-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .creators-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== LAZY LOAD ===== */
img[loading="lazy"] { opacity: 0; transition: opacity 0.5s ease; }
img.loaded { opacity: 1; }

/* ===== INNER PAGE SPECIFIC ===== */
.wabi-intro { max-width: 760px; margin: 0 auto 3rem; text-align: center; }
.wabi-intro p { color: var(--color-muted); line-height: 2.1; font-size: 0.95rem; }
.zen-quote {
  border-left: 2px solid var(--color-accent);
  padding: 1rem 1.5rem;
  margin: 2rem 0;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  background: rgba(92,122,110,0.05);
}