/* ============================================================
   pages.css — 各页面特殊样式
   ============================================================ */

/* ========== Page Loader ========== */
.page-loader {
  position:fixed;
  inset:0;
  z-index:99999;
  pointer-events:none;
}
/* Curtain halves */
.loader-curtain {
  position:absolute;
  top:0; bottom:0;
  width:50%;
  background:#002140;
  transition:transform .6s cubic-bezier(.7,0,.3,1);
}
.loader-curtain-l { left:0; }
.loader-curtain-r { right:0; }
.page-loader.is-done .loader-curtain-l { transform:translateX(-100%); }
.page-loader.is-done .loader-curtain-r { transform:translateX(100%); }

/* Center content */
.loader-center {
  position:absolute;
  top:50%; left:50%;
  transform:translate(-50%,-50%);
  display:flex;
  flex-direction:column;
  align-items:center;
  z-index:1;
  transition:all .5s cubic-bezier(.7,0,.3,1);
}
.page-loader.is-done .loader-center {
  opacity:0;
  transform:translate(-50%,-50%) scale(.95);
}
.loader-logo {
  width:80px; height:80px;
  animation:loader-pulse 1.2s ease-in-out infinite;
}
@keyframes loader-pulse {
  0%,100% { transform:scale(1); opacity:1; }
  50%     { transform:scale(1.08); opacity:.85; }
}
.loader-title {
  margin-top:var(--space-md);
  font-family:var(--font-mono);
  font-size:1.4rem;
  font-weight:700;
  color:var(--c-primary);
}
.loader-sub {
  margin-top:var(--space-xs);
  font-size:var(--fs-sm);
  color:var(--c-text-muted);
  animation:loader-blink 1.6s step-end infinite;
}
@keyframes loader-blink {
  0%,100% { opacity:1; }
  50%     { opacity:0; }
}

/* Floating blocks background */
.loader-blocks {
  position:absolute;
  inset:0;
  pointer-events:none;
  overflow:hidden;
}
.loader-block {
  position:absolute;
  border-radius:2px;
  opacity:.15;
  animation:loader-float 3s ease-in-out infinite;
}
@keyframes loader-float {
  0%,100% { transform:translateY(0) rotate(0deg); }
  50%     { transform:translateY(-20px) rotate(5deg); }
}

/* ========== 首页 Hero ========== */
.hero-index {
  position:relative;
  min-height:85vh;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  overflow:hidden;
  background:linear-gradient(135deg,var(--c-bg) 0%,color-mix(in srgb,var(--c-primary) 30%,var(--c-bg)) 50%,color-mix(in srgb,var(--c-accent-4) 25%,var(--c-bg)) 100%);
  background-image:var(--pixel-grid);
}
/* 背景画廊：左右滑动切换背景图（slide 的 src 留空时显示渐变兜底） */
.hero-gallery {
  position:absolute;
  inset:0;
  overflow:hidden;
  z-index:0;
  opacity:0;
  transform:scale(1.08);
  transition:opacity .8s ease, transform .8s cubic-bezier(.7,0,.3,1);
}
.hero-index.is-loaded .hero-gallery { opacity:1; transform:scale(1); }
.hero-gallery-track {
  display:flex;
  height:100%;
  transition:transform .6s cubic-bezier(.7,0,.3,1);
}
.hero-slide {
  flex:0 0 100%;
  height:100%;
}
.hero-slide img {
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
  display:block;
  pointer-events:none;
}
/* 控制：左右箭头 */
.hero-gallery-arrow {
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  z-index:2;
  width:44px;
  height:44px;
  border:1px solid rgba(255,255,255,.25);
  border-radius:var(--radius);
  background:rgba(15,19,32,.45);
  color:#fff;
  font-size:1.5rem;
  line-height:1;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  opacity:0;
  transition:opacity .25s,background .2s,border-color .2s;
}
.hero-index:hover .hero-gallery-arrow,
.hero-gallery-arrow:focus-visible { opacity:1; }
.hero-gallery-arrow:hover { background:rgba(15,19,32,.72); border-color:rgba(255,255,255,.5); }
.hero-gallery-prev { left:var(--space-lg); }
.hero-gallery-next { right:var(--space-lg); }
/* 控制：指示点 */
.hero-gallery-dots {
  position:absolute;
  bottom:var(--space-lg);
  left:50%;
  transform:translateX(-50%);
  z-index:2;
  display:flex;
  gap:var(--space-sm);
}
.hero-gallery-dot {
  width:8px;
  height:8px;
  border-radius:50%;
  padding:0;
  border:none;
  background:rgba(255,255,255,.4);
  cursor:pointer;
  transition:background .2s,transform .2s;
}
.hero-gallery-dot.is-active {
  background:var(--c-primary);
  transform:scale(1.35);
}
@media (hover: none) {
  .hero-gallery-arrow { opacity:.85; }
}
/* 背景图片上的渐变遮罩，确保文字可读 */
.hero-index::after {
  content:'';
  position:absolute;
  inset:0;
  background:radial-gradient(ellipse at 50% 30%,color-mix(in srgb,var(--c-primary) 15%,transparent) 0%,transparent 70%);
  pointer-events:none;
  z-index:0;
}
.hero-index-content {
  position:relative;
  z-index:1;
  padding:var(--space-2xl) var(--space-xl);
  width:100%;
  max-width:none;
}
/* Dark backdrop — animated via pseudo-element */
.hero-index-content::before {
  content:'';
  position:absolute;
  inset:0;
  z-index:-1;
  background:rgba(15,19,32,.55);
  border-top:1px solid rgba(255,255,255,.15);
  border-bottom:1px solid rgba(255,255,255,.15);
  transition:background .4s,border-color .4s;
  transform:scaleY(0);
  transform-origin:center;
}
.hero-index-content.is-revealed::before {
  transform:scaleY(1);
  transition:transform .55s cubic-bezier(.7,0,.3,1),background .4s,border-color .4s;
}

.hero-index-content:hover::before {
  background:rgba(15,19,32,.62);
  border-color:rgba(255,255,255,.28);
}
[data-theme="dark"] .hero-index-content::before {
  background:rgba(10,14,24,.58);
  border-color:rgba(255,255,255,.12);
}
[data-theme="dark"] .hero-index-content:hover::before {
  background:rgba(10,14,24,.68);
  border-color:rgba(255,255,255,.22);
}

/* Hero title image */
.hero-title-img {
  display:block;
  max-width:640px;
  width:100%;
  height:auto;
  margin:0 auto var(--space-sm);
  filter:drop-shadow(0 2px 8px rgba(0,0,0,.35));
}

/* Server badge — subtle accent pill */
.hero-badge {
  display:inline-flex;
  align-items:center;
  gap:var(--space-sm);
  padding:.35rem 1rem;
  font-size:var(--fs-sm);
  font-weight:700;
  color:#fff;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.2);
  border-radius:999px;
  margin-bottom:var(--space-xl);
  transition:background .2s,border-color .2s;
}
.hero-badge:hover {
  background:rgba(255,255,255,.18);
  border-color:rgba(255,255,255,.35);
}

/* Chinese title */
.hero-title-cn {
  display:block;
  font-size:clamp(1.6rem,4vw,2.6rem);
  font-weight:700;
  color:#fff;
  line-height:1.3;
  text-shadow:0 1px 8px rgba(0,0,0,.3);
}

/* Description */
.hero-desc {
  max-width:600px;
  margin:var(--space-lg) auto 0;
  font-size:var(--fs-lg);
  color:rgba(255,255,255,.82);
  text-shadow:0 1px 6px rgba(0,0,0,.25);
}

/* CTA button row */
.hero-cta {
  margin-top:var(--space-xl);
  display:flex;
  gap:var(--space-md);
  justify-content:center;
  flex-wrap:wrap;
}

/* Floating decorations — colored pixel blocks */
.hero-float {
  position:absolute;
  width:40px; height:40px;
  border-radius:var(--radius);
  opacity:.18;
  pointer-events:none;
  animation:heroFloat 6s ease-in-out infinite;
}
.hero-float-1 { top:15%; left:10%; animation-delay:0s;   background:var(--c-gold); }
.hero-float-2 { top:25%; right:12%; animation-delay:2s; background:var(--c-primary); width:32px; height:32px; }
.hero-float-3 { bottom:20%; left:20%; animation-delay:4s; background:var(--c-accent-4); width:48px; height:48px; }

@keyframes heroFloat {
  0%,100% { transform:translateY(0) rotate(0deg); }
  33%     { transform:translateY(-16px) rotate(5deg); }
  66%     { transform:translateY(8px) rotate(-3deg); }
}

@media (max-width:768px) {
  .hero-index { min-height:70vh; }
  .hero-float { display:none; }
}

[data-theme="dark"] .hero-index {
  background:linear-gradient(135deg,var(--c-bg) 0%,color-mix(in srgb,var(--c-primary) 40%,var(--c-bg)) 50%,color-mix(in srgb,var(--c-accent-4) 35%,var(--c-bg)) 100%);
}

/* ========== About page ========== */
.about-intro .panel { height:100%; }

/* Org tree spacing */
.org-section { padding:var(--space-xl) 0; }

/* ========== Events page ========== */
.events-list { display:flex; flex-direction:column; gap:var(--space-md); }

/* ========== Gallery page ========== */
/* (Most gallery styles are in components.css) */

/* ========== 404 page ========== */
.page-404 {
  min-height:70vh;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:var(--space-3xl);
  position:relative;
  overflow:hidden;
}
.page-404 .code-404 {
  font-size:8rem;
  font-weight:800;
  font-family:var(--font-mono);
  color:var(--c-primary);
  line-height:1;
  position:relative;
  z-index:1;
}
.page-404 h2,
.page-404 p,
.page-404 > div:last-of-type { position:relative; z-index:1; }

/* Random floating pixel blocks */
.d404-block {
  position:absolute;
  border-radius:2px;
  opacity:0;
  z-index:0;
  animation: d404-float linear infinite alternate;
  pointer-events:none;
}
.d404-block:nth-child(odd) { animation-name:d404-float-up; }
.d404-block:nth-child(even) { animation-name:d404-float-down; }

@keyframes d404-float-up {
  0%   { opacity:0; transform:translateY(0) rotate(0deg); }
  20%  { opacity:.7; }
  80%  { opacity:.6; }
  100% { opacity:0; transform:translateY(-40px) rotate(15deg); }
}
@keyframes d404-float-down {
  0%   { opacity:0; transform:translateY(0) rotate(0deg); }
  20%  { opacity:.7; }
  80%  { opacity:.6; }
  100% { opacity:0; transform:translateY(30px) rotate(-10deg); }
}

@media (prefers-reduced-motion:reduce) {
  .d404-block { animation:none; opacity:.3; }
}

#serverSection { scroll-margin-top:80px; }

/* ========== Responsive page tweaks ========== */
@media (max-width:480px) {
  .hero-title-cn { font-size:clamp(1.2rem,5vw,1.6rem); }
  .page-404 .code-404 { font-size:5rem; }
}