:root {
  --banana-yellow: #FFD54F;
  --banana-light: #FFF3C4;
  --soft-blue: #E3F2FD;
  --gray-dark: #333333;
  --gray-mid: #666666;
  --gray-light: #F5F5F5;
  --white: #FFFFFF;
  --border-black: #1A1A1A;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-pill: 50px;
  --shadow-soft: 0 8px 24px rgba(0,0,0,0.06);
  --shadow-hover: 0 16px 40px rgba(0,0,0,0.1);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--gray-dark);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }

/* Nav */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--border-black);
}
.nav-inner {
  max-width: 1200px; margin: 0 auto;
  padding: 0 20px;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 800; font-size: 1.15rem; color: var(--border-black);
}
.brand img { height: 32px; width: auto; }
.nav-links {
  display: flex; gap: 24px; list-style: none;
  font-size: 0.92rem; font-weight: 600; color: var(--gray-mid);
}
.nav-links a:hover { color: var(--border-black); }
.nav-toggle {
  display: none; background: none; border: 2px solid var(--border-black);
  border-radius: 8px; padding: 6px 10px; font-weight: 700; cursor: pointer;
  font-size: 0.9rem;
}

/* Hero */
.hero {
  position: relative;
  padding: 60px 20px 80px;
  background: linear-gradient(135deg, var(--banana-light) 0%, var(--white) 45%, var(--soft-blue) 100%);
  overflow: hidden;
}
.hero-shapes {
  position: absolute; inset: 0; pointer-events: none; opacity: 0.4;
}
.hero-shapes::before {
  content: ''; position: absolute; width: 300px; height: 300px;
  border-radius: 50%; background: var(--banana-yellow);
  top: -100px; right: -80px; opacity: 0.3;
}
.hero-shapes::after {
  content: ''; position: absolute; width: 200px; height: 200px;
  background: var(--soft-blue); border-radius: var(--radius-lg);
  bottom: -60px; left: -60px; transform: rotate(25deg);
}
.hero-inner {
  max-width: 1200px; margin: 0 auto; position: relative;
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center;
}
.hero-text h1 {
  font-size: 2.6rem; font-weight: 900; line-height: 1.2;
  color: var(--border-black); margin-bottom: 20px;
}
.hero-text .lead {
  font-size: 1.05rem; color: var(--gray-mid); margin-bottom: 28px;
  max-width: 480px;
}
.hero-badges {
  display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 32px;
}
.hero-badges span {
  background: var(--white); border: 2px solid var(--border-black);
  border-radius: var(--radius-pill); padding: 8px 16px;
  font-size: 0.85rem; font-weight: 700;
}
.download-group {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
}
.btn-main {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--banana-yellow); color: var(--border-black);
  font-weight: 800; font-size: 1rem;
  padding: 14px 32px; border-radius: var(--radius-pill);
  border: 2px solid var(--border-black);
  box-shadow: 4px 4px 0 var(--border-black);
  transition: transform 0.15s, box-shadow 0.15s;
  cursor: pointer;
}
.btn-main:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--border-black);
}
.btn-outline {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--white); color: var(--border-black);
  font-weight: 700; font-size: 0.95rem;
  padding: 14px 26px; border-radius: var(--radius-pill);
  border: 2px solid var(--border-black);
  transition: background 0.2s;
  cursor: pointer;
}
.btn-outline:hover { background: var(--banana-light); }
.hero-visual {
  position: relative;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px;
}
.hero-visual .mag-card {
  border-radius: var(--radius-md); overflow: hidden;
  box-shadow: var(--shadow-soft); border: 2px solid var(--border-black);
  background: var(--white);
}
.hero-visual .mag-card img { width: 100%; height: 200px; object-fit: cover; }

/* Section base */
section { padding: 70px 20px; }
.section-inner { max-width: 1200px; margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header h2 {
  font-size: 2rem; font-weight: 900; color: var(--border-black);
  margin-bottom: 12px;
}
.section-header p { color: var(--gray-mid); font-size: 1rem; }

/* Masonry 夏日书单 */
.masonry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  align-items: start;
}
.polaroid {
  background: var(--white); padding: 10px 10px 18px;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  border: 2px solid #eee;
  transform: rotate(var(--rot, 0deg));
  transition: transform 0.25s, box-shadow 0.25s;
  cursor: pointer;
}
.polaroid:hover {
  transform: translateY(-8px) rotate(0deg);
  box-shadow: var(--shadow-hover);
}
.polaroid img {
  width: 100%; border-radius: 10px; object-fit: cover;
}
.polaroid:nth-child(1) img { height: 220px; }
.polaroid:nth-child(2) img { height: 160px; }
.polaroid:nth-child(3) img { height: 250px; }
.polaroid:nth-child(4) img { height: 180px; }
.polaroid:nth-child(5) img { height: 200px; }
.polaroid:nth-child(6) img { height: 240px; }
.polaroid:nth-child(7) img { height: 170px; }
.polaroid:nth-child(8) img { height: 210px; }
.polaroid .caption {
  margin-top: 10px; font-size: 0.85rem; font-weight: 700; text-align: center;
  color: var(--gray-dark);
}
.polaroid .tag {
  display: inline-block; margin-top: 6px; font-size: 0.72rem;
  background: var(--banana-light); padding: 2px 10px; border-radius: 20px;
  color: var(--border-black);
}

/* Timeline 新番速递 */
.timeline {
  position: relative; max-width: 800px; margin: 0 auto;
  padding-left: 40px; border-left: 3px solid var(--banana-yellow);
}
.tl-item {
  position: relative; margin-bottom: 32px;
  display: flex; gap: 20px; align-items: flex-start;
}
.tl-item::before {
  content: ''; position: absolute; left: -49px; top: 6px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--banana-yellow); border: 3px solid var(--white);
  box-shadow: 0 0 0 3px var(--banana-yellow);
}
.tl-date {
  min-width: 72px; font-weight: 800; font-size: 0.85rem;
  color: var(--border-black);
}
.tl-card {
  flex: 1; display: flex; gap: 16px;
  background: var(--white); border: 2px solid var(--border-black);
  border-radius: var(--radius-md); padding: 14px;
  box-shadow: var(--shadow-soft);
}
.tl-card img {
  width: 90px; height: 120px; object-fit: cover;
  border-radius: 10px; flex-shrink: 0;
}
.tl-info h3 { font-size: 1.05rem; margin-bottom: 6px; }
.tl-info p { font-size: 0.88rem; color: var(--gray-mid); margin-bottom: 8px; }
.tl-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.tl-tags span {
  font-size: 0.72rem; background: var(--soft-blue); padding: 3px 10px;
  border-radius: 20px; color: var(--gray-dark);
}

/* Full-bleed 高清图库 */
.gallery-section { padding: 0; background: var(--gray-light); }
.gallery-scroll {
  display: flex; gap: 16px; overflow-x: auto; padding: 40px 20px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.gallery-scroll::-webkit-scrollbar { height: 8px; }
.gallery-scroll::-webkit-scrollbar-thumb { background: var(--banana-yellow); border-radius: 10px; }
.gallery-item {
  flex: 0 0 auto; width: 300px; height: 400px;
  scroll-snap-align: center; border-radius: var(--radius-lg);
  overflow: hidden; border: 2px solid var(--border-black);
  box-shadow: var(--shadow-soft); background: var(--white);
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; }
.gallery-caption {
  text-align: center; color: var(--gray-mid); font-size: 0.9rem;
  padding-bottom: 30px;
}

/* Split dashboard */
.split-section { background: linear-gradient(180deg, var(--white), var(--banana-light)); }
.split-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 30px;
}
.split-panel {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 30px; box-shadow: var(--shadow-soft);
  border: 2px solid var(--border-black);
}
.split-panel h3 { font-size: 1.3rem; margin-bottom: 14px; }
.split-panel p { font-size: 0.92rem; color: var(--gray-mid); margin-bottom: 18px; }
.ui-wireframe {
  background: var(--gray-light); border-radius: var(--radius-md);
  padding: 20px; min-height: 220px;
  display: flex; flex-direction: column; gap: 10px;
}
.ui-line { height: 12px; border-radius: 6px; background: #ddd; }
.ui-line.w60 { width: 60%; }
.ui-line.w80 { width: 80%; }
.ui-line.w40 { width: 40%; }
.ui-block { height: 60px; border-radius: 10px; background: var(--banana-light); }
.sync-visual {
  display: flex; align-items: center; justify-content: center; gap: 20px;
  min-height: 220px; flex-direction: column;
}
.sync-node {
  width: 70px; height: 70px; border-radius: 14px;
  background: var(--soft-blue); border: 2px solid var(--border-black);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 0.8rem;
}
.sync-line {
  width: 3px; height: 40px;
  background: repeating-linear-gradient(180deg, var(--banana-yellow), var(--banana-yellow) 6px, transparent 6px, transparent 12px);
}
.sync-text { font-size: 0.85rem; color: var(--gray-mid); text-align: center; }

/* FAQ Capsule */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  background: var(--white); border: 2px solid var(--border-black);
  border-radius: var(--radius-pill); overflow: hidden;
  transition: border-radius 0.3s;
}
.faq-item.open { border-radius: var(--radius-lg); }
.faq-q {
  width: 100%; text-align: left; background: none; border: none;
  padding: 18px 28px; font-size: 1rem; font-weight: 700;
  color: var(--gray-dark); cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
}
.faq-q::after {
  content: '+'; font-size: 1.4rem; font-weight: 400;
  transition: transform 0.3s;
}
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a {
  max-height: 0; overflow: hidden; transition: max-height 0.35s ease;
  padding: 0 28px;
}
.faq-item.open .faq-a { max-height: 300px; }
.faq-a p { padding-bottom: 20px; font-size: 0.92rem; color: var(--gray-mid); }

/* Steps */
.steps-section { background: var(--soft-blue); }
.steps-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
  margin-bottom: 40px;
}
.step-card {
  background: var(--white); border-radius: var(--radius-md);
  padding: 26px 22px; border: 2px solid var(--border-black);
  box-shadow: var(--shadow-soft);
}
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--banana-yellow); font-weight: 900;
  margin-bottom: 14px;
}
.step-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.step-card p { font-size: 0.88rem; color: var(--gray-mid); }
.final-download {
  text-align: center; background: var(--white);
  border-radius: var(--radius-lg); padding: 40px 20px;
  border: 2px solid var(--border-black);
}
.final-download h2 { font-size: 1.7rem; margin-bottom: 10px; }
.final-download p { color: var(--gray-mid); margin-bottom: 24px; }
.final-btns {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 14px;
}

/* Footer */
.site-footer {
  background: var(--border-black); color: #ccc;
  padding: 50px 20px 30px;
}
.footer-inner {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px;
}
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer-brand img { height: 32px; }
.footer-brand span { font-weight: 800; color: var(--white); font-size: 1.05rem; }
.footer-inner p { font-size: 0.88rem; line-height: 1.8; }
.footer-links h4 { color: var(--white); margin-bottom: 12px; font-size: 0.95rem; }
.footer-links ul { list-style: none; display: flex; flex-direction: column; gap: 8px; font-size: 0.85rem; }
.footer-links a:hover { color: var(--banana-yellow); }
.footer-bottom {
  max-width: 1200px; margin: 30px auto 0; padding-top: 20px;
  border-top: 1px solid #333; text-align: center; font-size: 0.78rem;
  color: #888;
}
.footer-bottom time { color: #666; }

/* Copy modal */
.copy-modal {
  display: none; position: fixed; inset: 0; z-index: 999;
  background: rgba(0,0,0,0.5);
  align-items: center; justify-content: center;
  padding: 20px;
}
.copy-modal.active { display: flex; }
.copy-box {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 28px; max-width: 400px; width: 100%;
  border: 3px solid var(--border-black);
}
.copy-box p { font-size: 0.95rem; margin-bottom: 16px; font-weight: 600; }
.copy-url {
  background: var(--gray-light); border-radius: 10px;
  padding: 12px; font-size: 0.82rem; word-break: break-all;
  margin-bottom: 16px; color: var(--gray-mid);
}
.copy-btn {
  width: 100%; background: var(--banana-yellow);
  border: 2px solid var(--border-black); border-radius: var(--radius-pill);
  padding: 12px; font-weight: 800; font-size: 1rem; cursor: pointer;
  margin-bottom: 10px;
}
.copy-close {
  width: 100%; background: none; border: 2px solid #ccc;
  border-radius: var(--radius-pill); padding: 10px;
  font-weight: 600; cursor: pointer; color: var(--gray-mid);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .masonry-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-links.active {
    display: flex; flex-direction: column; position: absolute;
    top: 64px; left: 0; right: 0; background: var(--white);
    padding: 20px; border-bottom: 2px solid var(--border-black);
    gap: 16px; font-size: 1rem;
  }
}
@media (max-width: 768px) {
  .hero { padding: 40px 16px 60px; }
  .hero-text h1 { font-size: 1.9rem; }
  .hero-text .lead { font-size: 0.95rem; }
  section { padding: 48px 16px; }
  .section-header h2 { font-size: 1.5rem; }
  .masonry-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .polaroid:nth-child(1) img,
  .polaroid:nth-child(2) img,
  .polaroid:nth-child(3) img,
  .polaroid:nth-child(4) img,
  .polaroid:nth-child(5) img,
  .polaroid:nth-child(6) img,
  .polaroid:nth-child(7) img,
  .polaroid:nth-child(8) img { height: 150px; }
  .timeline { padding-left: 28px; }
  .tl-item::before { left: -37px; }
  .tl-card { flex-direction: column; }
  .tl-card img { width: 100%; height: 160px; }
  .gallery-item { width: 240px; height: 320px; }
  .split-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 24px; }
  .btn-main, .btn-outline { width: 100%; justify-content: center; }
  .download-group { flex-direction: column; }
}