/* ═══════════════════════════════════
   BALLYOYO 官网 — 共用样式
   COARSE Gallery 编辑式设计语言
   ═══════════════════════════════════ */

:root {
  --cream: #F3EFE7;
  --ink: #1D1D1B;
  --soft: #77736C;
  --mist: #6F789C;
  --gold: #D8B965;
  --line: #D9D1C4;
  --milk: #FAF7F0;
  --img-bg: #E5DED2;
  --max-w: 1440px;
  --body-w: 620px;
}

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

html {
  scroll-behavior: smooth;
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--cream);
  line-height: 1.7;
  min-height: 100vh;
}

::selection { background: rgba(111,120,156,0.18); color: var(--ink); }

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; border: none; background: none; }

/* Layout utilities */
.shell {
  width: min(100% - 2rem, var(--max-w));
  margin-inline: auto;
}

.body-copy { max-width: var(--body-w); }

.section-pad {
  padding-block: clamp(5rem, 10vw, 10rem);
}

.rule { border-top: 1px solid var(--line); }

/* Header */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 1.25rem 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
  mix-blend-mode: difference; color: #fff;
  transition: all 0.3s;
}

.site-header.scrolled {
  mix-blend-mode: normal; color: var(--ink);
  background: rgba(243,239,231,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.site-header.page-header {
  mix-blend-mode: normal;
  color: var(--ink);
  background: var(--cream);
  border-bottom: 1px solid var(--line);
}

.site-logo {
  font-size: 1.05rem; font-weight: 700;
  letter-spacing: 0.22em; text-transform: uppercase;
}

.nav-toggle {
  width: 2.5rem; height: 2.5rem;
  display: flex; align-items: center; justify-content: center;
  color: inherit;
}

.nav-toggle span {
  display: block; width: 1.25rem; height: 1.5px;
  background: currentColor; position: relative;
  transition: background 0.2s;
}

.nav-toggle span::before, .nav-toggle span::after {
  content: ''; position: absolute;
  width: 100%; height: 100%;
  background: currentColor;
  transition: transform 0.3s;
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after  { top: 6px; }

.nav-toggle.open span { background: transparent; }
.nav-toggle.open span::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle.open span::after  { transform: translateY(-6px) rotate(-45deg); }

.nav-overlay {
  position: fixed; inset: 0; z-index: 99;
  background: var(--cream);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.35s ease;
}

.nav-overlay.open { opacity: 1; pointer-events: auto; }

.nav-list {
  list-style: none; text-align: center;
  display: flex; flex-direction: column; gap: 2rem;
}

.nav-list a {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 500; letter-spacing: 0.04em;
  color: var(--ink); transition: color 0.25s;
  display: block; padding: 0.25rem 0;
}

.nav-list a:hover { color: var(--mist); }
.nav-list a.active { color: var(--mist); }

.nav-sub {
  display: block; font-size: 0.8rem; font-weight: 400;
  color: var(--soft); letter-spacing: 0.08em; margin-top: 0.25rem;
}

/* Page Hero (sub-pages) */
.page-hero {
  padding: 8rem 1.5rem clamp(3rem, 6vw, 5rem);
  border-bottom: 1px solid var(--line);
}

.page-hero .eyebrow {
  font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--soft); margin-bottom: 1rem;
}

.page-hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 600; letter-spacing: -0.03em;
  line-height: 1.08; margin-bottom: 1.25rem;
  max-width: 800px;
}

.page-hero .desc {
  font-size: 1.1rem; color: var(--soft);
  line-height: 1.8; max-width: var(--body-w);
}

/* Section title */
.section-eyebrow {
  font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--soft); margin-bottom: 0.5rem;
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600; letter-spacing: -0.02em;
  margin-bottom: 1rem; line-height: 1.25;
}

/* Editorial text */
.editorial-text {
  font-size: 1.05rem; color: var(--soft);
  line-height: 1.8;
}

/* Links */
.editorial-link {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: rgba(29,29,27,0.22);
  text-underline-offset: 0.35em;
  transition: color 0.24s, text-decoration-color 0.24s;
}
.editorial-link:hover {
  color: var(--mist);
  text-decoration-color: var(--mist);
}

/* Media frame */
.media-frame {
  position: relative; overflow: hidden;
  background: var(--img-bg);
}
.media-frame img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.42s ease;
}
.media-frame:hover img { transform: scale(1.018); }

/* Tags */
.tag {
  display: inline-block;
  font-size: 0.7rem; padding: 0.25rem 0.7rem;
  border: 1px solid var(--line);
  color: var(--soft); letter-spacing: 0.04em;
  margin: 0.15rem;
}

/* Buttons */
.btn-outline {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.8rem 1.6rem;
  border: 1.5px solid var(--ink);
  font-size: 0.82rem; font-weight: 600;
  letter-spacing: 0.1em; color: var(--ink);
  transition: all 0.3s ease;
}
.btn-outline:hover { background: var(--ink); color: var(--cream); }

/* Card grid */
.card-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

.card {
  display: block;
  transition: opacity 0.3s;
}
.card:hover { opacity: 0.85; }

.card-img {
  position: relative; overflow: hidden;
  background: var(--milk);
  aspect-ratio: 4 / 5;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.25rem;
}
.card-img img {
  width: 80%; height: 80%;
  object-fit: contain; padding: 1.5rem;
  transition: transform 0.5s ease;
}
.card:hover .card-img img { transform: scale(1.04); }

.card-name {
  font-size: 1.5rem; font-weight: 600;
  letter-spacing: -0.02em; margin-bottom: 0.3rem;
}

.card-sub {
  font-size: 0.8rem; color: var(--soft);
  letter-spacing: 0.04em; margin-bottom: 0.75rem;
}

.card-intro {
  font-size: 0.9rem; color: var(--soft);
  line-height: 1.6;
}

/* List items (entrances, links) */
.item-list { list-style: none; display: flex; flex-direction: column; }

.item-row {
  display: grid; gap: 1.5rem; padding: 2rem 0;
  border-top: 1px solid var(--line);
  align-items: center;
  transition: opacity 0.3s ease;
}
.item-row:last-child { border-bottom: 1px solid var(--line); }
.item-row:hover { opacity: 0.7; }

@media (min-width: 768px) {
  .item-row {
    grid-template-columns: 0.1fr 0.55fr 0.35fr;
    gap: 2rem; padding: 2.5rem 0;
  }
}

.item-num {
  font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.2em; color: var(--soft);
}

.item-label {
  font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--soft); margin-bottom: 0.5rem;
}

.item-title {
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 600; letter-spacing: -0.03em;
  line-height: 1.2; margin-bottom: 0.5rem;
}

.item-desc {
  font-size: 0.9rem; color: var(--soft);
  line-height: 1.7;
}

.item-thumb {
  position: relative; overflow: hidden;
  background: var(--img-bg);
  aspect-ratio: 4 / 3;
}
.item-thumb img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.4s ease;
}
.item-row:hover .item-thumb img { transform: scale(1.03); }

/* Resident detail */
.resident-detail {
  padding: 0 1.5rem clamp(5rem, 10vw, 8rem);
}

.resident-detail-grid {
  display: grid; gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

@media (min-width: 768px) {
  .resident-detail-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.detail-img {
  position: relative; overflow: hidden;
  background: var(--milk);
  aspect-ratio: 4 / 5;
  display: flex; align-items: center; justify-content: center;
}

.detail-img img {
  width: 85%; height: 85%;
  object-fit: contain; padding: 2rem;
}

.detail-info h2 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 600; letter-spacing: -0.03em;
  line-height: 1.1; margin-bottom: 0.5rem;
}

.detail-sub {
  font-size: 0.9rem; color: var(--soft);
  letter-spacing: 0.05em; margin-bottom: 1.5rem;
}

.detail-tags {
  display: flex; flex-wrap: wrap; gap: 0.4rem;
  margin-bottom: 1.5rem;
}

.detail-story {
  font-size: 1.05rem; line-height: 1.85;
  color: var(--soft); margin-bottom: 1.5rem;
}

.detail-motto {
  font-size: 1.15rem; font-weight: 500;
  color: var(--mist); font-style: italic;
  border-left: 2px solid var(--line);
  padding-left: 1rem; margin: 1.5rem 0;
}

.detail-meta {
  font-size: 0.8rem; color: var(--soft);
  border-top: 1px solid var(--line);
  padding-top: 1.5rem; margin-top: 1.5rem;
}

.detail-meta dt {
  font-weight: 600; color: var(--ink);
  margin-bottom: 0.2rem;
}

.detail-meta dd {
  margin-bottom: 1rem;
}

.detail-meta dd:last-child { margin-bottom: 0; }

/* Map page */
.map-hotspot {
  position: absolute;
  width: 2rem; height: 2rem;
  transform: translate(-50%, -50%);
}

.map-hotspot::before {
  content: '';
  display: block;
  width: 0.75rem; height: 0.75rem;
  background: var(--gold);
  border-radius: 50%;
  margin: 0.6rem auto 0;
  box-shadow: 0 0 0 6px rgba(216,185,101,0.18);
  transition: transform 0.3s;
}

.map-hotspot:hover::before {
  transform: scale(1.4);
}

.map-tooltip {
  position: absolute;
  bottom: calc(100% + 0.6rem);
  left: 50%;
  transform: translateX(-50%);
  background: var(--cream);
  border: 1px solid var(--line);
  padding: 0.5rem 0.8rem;
  font-size: 0.72rem; font-weight: 600;
  white-space: nowrap;
  opacity: 0; pointer-events: none;
  transition: opacity 0.25s;
}

.map-hotspot:hover .map-tooltip {
  opacity: 1;
}

/* Placeholder */
.placeholder-box {
  background: var(--milk);
  border: 1px dashed var(--line);
  display: flex; align-items: center; justify-content: center;
  padding: 3rem;
  text-align: center;
  color: var(--soft);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
}

/* Footer */
.site-footer {
  padding: 2rem 1.5rem 3rem;
  border-top: 1px solid var(--line);
  display: flex; flex-direction: column;
  gap: 1.5rem; align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .site-footer {
    flex-direction: row; justify-content: space-between;
    text-align: left;
  }
}

.footer-brand {
  font-size: 0.85rem; font-weight: 700;
  letter-spacing: 0.2em; text-transform: uppercase;
}

.footer-links {
  display: flex; gap: 2rem;
  font-size: 0.8rem; color: var(--soft);
}

.footer-links a { transition: color 0.2s; }
.footer-links a:hover { color: var(--ink); }

.footer-note {
  font-size: 0.75rem; color: var(--soft);
  margin-top: 0.25rem;
}

/* Scroll reveal */
.reveal {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* Back link */
.back-link {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--soft); margin-bottom: 2rem;
  transition: color 0.25s;
}
.back-link:hover { color: var(--ink); }
.back-link::before { content: '←'; font-size: 0.85rem; }