/* =============================================
   香蕉视频 - 主样式表
   自然治愈 · 生活方式美学
   ============================================= */

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --cream:    #faf6f0;
  --sand:     #f0e8d8;
  --warm-gray:#e8e0d4;
  --khaki:    #c8b89a;
  --sage:     #8a9e8a;
  --sage-lt:  #c4d4c4;
  --brown:    #7a5c3a;
  --text:     #3a3028;
  --text-lt:  #6b5e50;
  --white:    #ffffff;
  --radius:   12px;
  --shadow:   0 4px 24px rgba(90,60,30,.08);
  --transition: .35s cubic-bezier(.4,0,.2,1);
}

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

body {
  font-family: "PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background: var(--cream);
  color: var(--text);
  line-height: 1.8;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

/* ---- Typography ---- */
h1,h2,h3,h4,h5,h6 { font-weight: 600; line-height: 1.4; color: var(--text); }
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); }
p  { color: var(--text-lt); font-size: 1rem; }

/* ---- Layout ---- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section    { padding: 80px 0; }
.section-sm { padding: 48px 0; }

/* ---- Header & Nav ---- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(250,246,240,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--warm-gray);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: 0 2px 16px rgba(90,60,30,.10); }

.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px; gap: 16px;
}

.logo {
  font-size: 1.4rem; font-weight: 700; color: var(--brown);
  letter-spacing: .02em; white-space: nowrap;
}
.logo span { color: var(--sage); }

.main-nav { display: flex; gap: 4px; }
.main-nav a {
  padding: 6px 14px; border-radius: 20px;
  font-size: .92rem; color: var(--text-lt);
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
}
.main-nav a:hover, .main-nav a.active {
  background: var(--sand); color: var(--brown);
}

/* ---- Search Bar ---- */
.search-wrap {
  display: flex; align-items: center; gap: 8px;
  background: var(--sand); border-radius: 24px;
  padding: 6px 14px; min-width: 180px;
}
.search-wrap input {
  border: none; background: transparent; outline: none;
  font-size: .88rem; color: var(--text); width: 100%;
  font-family: inherit;
}
.search-wrap input::placeholder { color: var(--khaki); }
.search-wrap button {
  background: none; border: none; cursor: pointer;
  color: var(--khaki); font-size: 1rem; padding: 0;
  transition: color var(--transition);
}
.search-wrap button:hover { color: var(--brown); }

/* Mobile menu toggle */
.menu-toggle {
  display: none; background: none; border: none;
  cursor: pointer; padding: 4px; color: var(--text);
}
.menu-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--text); margin: 5px 0;
  transition: all var(--transition);
  border-radius: 2px;
}

/* ---- Hero Section ---- */
.hero {
  position: relative; overflow: hidden;
  min-height: 90vh; display: flex; align-items: center;
}
.hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  filter: brightness(.82);
  transform: scale(1.04);
  animation: heroZoom 12s ease-in-out infinite alternate;
}
@keyframes heroZoom {
  from { transform: scale(1.04); }
  to   { transform: scale(1.00); }
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg,rgba(250,246,240,.55) 0%,rgba(122,92,58,.15) 100%);
}
.hero-content {
  position: relative; z-index: 2;
  max-width: 680px; padding: 60px 0;
  animation: fadeUp .9s ease both;
}
.hero-tag {
  display: inline-block; background: rgba(255,255,255,.7);
  color: var(--brown); font-size: .8rem; padding: 4px 14px;
  border-radius: 20px; margin-bottom: 20px; letter-spacing: .06em;
}
.hero-content h1 { color: var(--text); margin-bottom: 16px; }
.hero-content p  { font-size: 1.1rem; color: var(--text-lt); margin-bottom: 32px; max-width: 520px; }
.btn-group { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-primary {
  display: inline-block; padding: 14px 32px;
  background: var(--brown); color: var(--white);
  border-radius: 28px; font-size: .95rem; font-weight: 500;
  transition: background var(--transition), transform var(--transition);
}
.btn-primary:hover { background: #5a3a1a; transform: translateY(-2px); }
.btn-outline {
  display: inline-block; padding: 13px 32px;
  border: 1.5px solid var(--brown); color: var(--brown);
  border-radius: 28px; font-size: .95rem; font-weight: 500;
  transition: all var(--transition);
}
.btn-outline:hover { background: var(--brown); color: var(--white); }

/* ---- Section Titles ---- */
.section-title { text-align: center; margin-bottom: 48px; }
.section-title h2 { margin-bottom: 12px; }
.section-title p  { max-width: 560px; margin: 0 auto; font-size: 1rem; }
.title-line {
  width: 48px; height: 3px; background: var(--sage);
  border-radius: 2px; margin: 12px auto 0;
}

/* ---- Video Cards ---- */
.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: transform var(--transition), box-shadow var(--transition);
}
.video-card:hover { transform: translateY(-6px); box-shadow: 0 12px 40px rgba(90,60,30,.14); }

.video-thumb {
  position: relative; overflow: hidden;
  aspect-ratio: 16/9; cursor: pointer;
}
.video-thumb img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .5s 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);
  transition: background var(--transition);
  opacity: 0;
}
.video-card:hover .play-btn { opacity: 1; background: rgba(0,0,0,.28); }
.play-icon {
  width: 56px; height: 56px; border-radius: 50%;
  background: rgba(255,255,255,.9);
  display: flex; align-items: center; justify-content: center;
  transform: scale(.8); transition: transform var(--transition);
}
.video-card:hover .play-icon { transform: scale(1); }
.play-icon::after {
  content: ''; display: block;
  border-left: 20px solid var(--brown);
  border-top: 12px solid transparent;
  border-bottom: 12px solid transparent;
  margin-left: 4px;
}

.video-meta { padding: 16px; }
.video-meta h3 { font-size: 1rem; margin-bottom: 6px; }
.video-meta p  { font-size: .85rem; color: var(--text-lt); margin-bottom: 10px; }
.video-stats {
  display: flex; gap: 16px; font-size: .8rem; color: var(--khaki);
}
.video-stats span { display: flex; align-items: center; gap: 4px; }

/* ---- Daily / Lifestyle Grid ---- */
.daily-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px; align-items: center;
}
.daily-grid.reverse { direction: rtl; }
.daily-grid.reverse > * { direction: ltr; }
.daily-img { border-radius: var(--radius); overflow: hidden; }
.daily-img img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.daily-text { padding: 16px 0; }
.daily-text .tag {
  display: inline-block; background: var(--sage-lt);
  color: var(--sage); font-size: .78rem; padding: 3px 12px;
  border-radius: 12px; margin-bottom: 12px;
}
.daily-text h3 { margin-bottom: 12px; }
.daily-text p  { margin-bottom: 16px; }

/* ---- Philosophy / Concept ---- */
.philosophy-bg {
  background: var(--sand);
  border-radius: 24px; padding: 64px 48px;
  position: relative; overflow: hidden;
}
.philosophy-bg::before {
  content: ''; position: absolute; top: -60px; right: -60px;
  width: 240px; height: 240px; border-radius: 50%;
  background: rgba(138,158,138,.12);
}
.philosophy-cards {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 24px;
  margin-top: 40px;
}
.phil-card {
  background: var(--white); border-radius: var(--radius);
  padding: 28px 24px; text-align: center;
  box-shadow: var(--shadow);
  transition: transform var(--transition);
}
.phil-card:hover { transform: translateY(-4px); }
.phil-icon { font-size: 2rem; margin-bottom: 12px; }
.phil-card h4 { margin-bottom: 8px; }

/* ---- Products / Good Things ---- */
.goods-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}
.good-card {
  background: var(--white); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow);
  transition: transform var(--transition);
}
.good-card:hover { transform: translateY(-5px); }
.good-card img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.good-info { padding: 20px; }
.good-info h3 { font-size: 1.05rem; margin-bottom: 8px; }
.good-info p  { font-size: .88rem; margin-bottom: 12px; }
.good-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.good-tag {
  font-size: .75rem; background: var(--sand);
  color: var(--text-lt); padding: 3px 10px; border-radius: 10px;
}

/* ---- Companion Steps ---- */
.steps-grid {
  display: grid; grid-template-columns: repeat(4,1fr); gap: 20px;
}
.step-card {
  background: var(--white); border-radius: var(--radius);
  padding: 28px 20px; text-align: center;
  box-shadow: var(--shadow); position: relative;
}
.step-num {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--sage-lt); color: var(--sage);
  font-weight: 700; font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
}
.step-card h4 { margin-bottom: 8px; }

/* ---- Notes / Articles ---- */
.notes-grid {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 24px;
}
.note-card {
  background: var(--white); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow);
  transition: transform var(--transition);
}
.note-card:hover { transform: translateY(-5px); }
.note-card img { width: 100%; aspect-ratio: 3/2; object-fit: cover; }
.note-body { padding: 20px; }
.note-cat {
  font-size: .75rem; color: var(--sage); font-weight: 600;
  letter-spacing: .06em; margin-bottom: 8px;
}
.note-body h3 { font-size: 1rem; margin-bottom: 8px; }
.note-body p  { font-size: .85rem; }
.note-date { font-size: .78rem; color: var(--khaki); margin-top: 12px; }

/* ---- Reviews / Community ---- */
.reviews-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px,1fr)); gap: 24px;
}
.review-card {
  background: var(--white); border-radius: var(--radius);
  padding: 28px 24px; box-shadow: var(--shadow);
  position: relative;
}
.review-card::before {
  content: '"'; font-size: 4rem; color: var(--sage-lt);
  position: absolute; top: 8px; left: 20px;
  line-height: 1; font-family: Georgia,serif;
}
.review-text { font-size: .92rem; color: var(--text-lt); margin-bottom: 16px; padding-top: 24px; }
.reviewer { display: flex; align-items: center; gap: 12px; }
.reviewer-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--sage-lt); display: flex; align-items: center;
  justify-content: center; font-size: 1.1rem; color: var(--sage);
  flex-shrink: 0;
}
.reviewer-info small { font-size: .78rem; color: var(--khaki); }

/* ---- FAQ ---- */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--warm-gray); overflow: hidden;
}
.faq-q {
  width: 100%; text-align: left; background: none; border: none;
  padding: 20px 0; font-size: 1rem; font-weight: 600;
  color: var(--text); cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  font-family: inherit;
  transition: color var(--transition);
}
.faq-q:hover { color: var(--brown); }
.faq-q .arrow {
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--sand); display: flex; align-items: center;
  justify-content: center; flex-shrink: 0;
  transition: transform var(--transition), background var(--transition);
  font-size: .7rem;
}
.faq-item.open .faq-q .arrow { transform: rotate(180deg); background: var(--sage-lt); }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height .4s ease, padding .4s ease;
  font-size: .92rem; color: var(--text-lt);
}
.faq-item.open .faq-a { max-height: 300px; padding-bottom: 20px; }

/* ---- Contact ---- */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}
.contact-img img { width: 100%; border-radius: var(--radius); }
.contact-info h2 { margin-bottom: 16px; }
.contact-info p  { margin-bottom: 24px; }
.contact-items { display: flex; flex-direction: column; gap: 16px; }
.contact-item { display: flex; gap: 12px; align-items: flex-start; }
.contact-icon {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--sage-lt); display: flex; align-items: center;
  justify-content: center; font-size: 1.1rem; flex-shrink: 0;
}
.contact-item h4 { font-size: .9rem; margin-bottom: 2px; }
.contact-item p  { font-size: .85rem; margin: 0; }

/* ---- Footer ---- */
.site-footer {
  background: var(--text); color: rgba(255,255,255,.7);
  padding: 48px 0 24px;
}
.footer-top {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px;
  padding-bottom: 32px; border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-brand .logo-ft {
  font-size: 1.3rem; font-weight: 700; color: var(--white);
  margin-bottom: 12px;
}
.footer-brand p { font-size: .85rem; max-width: 260px; }
.footer-col h4 { color: var(--white); font-size: .9rem; margin-bottom: 14px; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: .85rem; transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--white); }
.footer-bottom {
  padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px; font-size: .82rem;
}
.footer-bottom a { transition: color var(--transition); }
.footer-bottom a:hover { color: var(--white); }

/* ---- Animations ---- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp .7s ease both; }
.fade-up-2 { animation: fadeUp .7s .15s ease both; }
.fade-up-3 { animation: fadeUp .7s .3s ease both; }

/* Intersection Observer reveal */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ---- Banner strips ---- */
.page-banner {
  background: var(--sand); padding: 64px 0 48px;
  text-align: center;
}
.page-banner h1 { margin-bottom: 12px; }
.breadcrumb {
  display: flex; justify-content: center; gap: 8px;
  font-size: .85rem; color: var(--khaki);
}
.breadcrumb a:hover { color: var(--brown); }

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .philosophy-cards { grid-template-columns: repeat(2,1fr); }
  .steps-grid       { grid-template-columns: repeat(2,1fr); }
  .footer-top       { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .main-nav { display: none; flex-direction: column; position: absolute;
    top: 64px; left: 0; right: 0; background: var(--cream);
    padding: 16px 24px; border-bottom: 1px solid var(--warm-gray);
    box-shadow: 0 8px 24px rgba(90,60,30,.08); }
  .main-nav.open { display: flex; }
  .menu-toggle { display: block; }
  .search-wrap { min-width: 120px; }
  .daily-grid  { grid-template-columns: 1fr; }
  .daily-grid.reverse { direction: ltr; }
  .contact-grid { grid-template-columns: 1fr; }
  .notes-grid   { grid-template-columns: 1fr 1fr; }
  .philosophy-cards { grid-template-columns: 1fr; }
  .steps-grid   { grid-template-columns: 1fr 1fr; }
  .footer-top   { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero { min-height: 80vh; }
  .notes-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: 1fr; }
  .goods-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .philosophy-bg { padding: 40px 24px; }
}