/* ============================================================
 * 杀戮尖塔2 MOD 分享站 — 暗色奇幻风格 v2
 * 深蓝黑底 + 金色点缀 + 精致层次
 * ============================================================ */
:root {
  --bg-deep: #080a16;
  --bg-mid: #0d1126;
  --bg-card: #121735;
  --bg-card-hover: #181e44;
  --line: #232c52;
  --line-glow: #3a4680;
  --gold: #8b7cf7;          /* 主强调色：紫罗兰 */
  --gold-bright: #b8a9ff;   /* 亮紫 */
  --gold-soft: #a99bff;     /* 柔和紫 */
  --gold-dim: #5b4fc0;      /* 深紫 */
  --ice: #7ec8ff;           /* 冰蓝点缀 */
  --purple: #8b7cf7;
  --text: #e8e6f5;
  --text-dim: #a0a3c0;
  --text-faint: #6a6e90;
  --red: #ff6b8a;
  --blue: #5b9dff;
  --green: #43d0a8;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 8px 28px rgba(0, 0, 0, 0.5);
  --shadow-gold: 0 4px 20px rgba(139, 124, 247, 0.2);
  --font: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Segoe UI", sans-serif;
}

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

html { scroll-behavior: smooth; }

::selection { background: rgba(139, 124, 247, 0.35); color: #fff; }

/* ===== 星空背景层 ===== */
.starry-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.stars {
  position: absolute;
  inset: -2px;
  background-repeat: repeat;
}

/* 小星：密集蓝紫星点 */
.stars-sm {
  background-image:
    radial-gradient(1.5px 1.5px at 20px 30px, rgba(190, 180, 255, 0.8), transparent 60%),
    radial-gradient(1.5px 1.5px at 70px 130px, rgba(160, 200, 255, 0.65), transparent 60%),
    radial-gradient(1.5px 1.5px at 150px 60px, rgba(190, 180, 255, 0.7), transparent 60%),
    radial-gradient(1.5px 1.5px at 200px 190px, rgba(160, 200, 255, 0.6), transparent 60%),
    radial-gradient(1.5px 1.5px at 310px 120px, rgba(190, 180, 255, 0.75), transparent 60%),
    radial-gradient(1.5px 1.5px at 360px 240px, rgba(255, 255, 255, 0.55), transparent 60%),
    radial-gradient(1.5px 1.5px at 470px 40px, rgba(190, 180, 255, 0.7), transparent 60%),
    radial-gradient(1.5px 1.5px at 120px 280px, rgba(160, 200, 255, 0.55), transparent 60%),
    radial-gradient(1.5px 1.5px at 430px 200px, rgba(255, 255, 255, 0.6), transparent 60%),
    radial-gradient(1.5px 1.5px at 280px 300px, rgba(190, 180, 255, 0.65), transparent 60%);
  background-size: 520px 320px;
  animation: twinkle 3.5s ease-in-out infinite;
}

/* 中星：明显可见 */
.stars-md {
  background-image:
    radial-gradient(2px 2px at 60px 90px, rgba(200, 190, 255, 0.95), transparent 65%),
    radial-gradient(2px 2px at 180px 200px, rgba(180, 215, 255, 0.75), transparent 65%),
    radial-gradient(2px 2px at 290px 50px, rgba(200, 190, 255, 0.9), transparent 65%),
    radial-gradient(2px 2px at 380px 180px, rgba(180, 215, 255, 0.7), transparent 65%),
    radial-gradient(2px 2px at 460px 300px, rgba(200, 190, 255, 0.85), transparent 65%),
    radial-gradient(2px 2px at 520px 120px, rgba(255, 255, 255, 0.65), transparent 65%);
  background-size: 560px 380px;
  animation: twinkle 4.5s ease-in-out infinite reverse;
}

/* 大星：带光晕的亮星 */
.stars-lg {
  background-image:
    radial-gradient(2.5px 2.5px at 120px 40px, rgba(205, 195, 255, 1), transparent 70%),
    radial-gradient(2.5px 2.5px at 250px 240px, rgba(220, 240, 255, 0.95), transparent 70%),
    radial-gradient(3px 3px at 410px 130px, rgba(205, 195, 255, 1), transparent 72%),
    radial-gradient(2.5px 2.5px at 500px 260px, rgba(195, 215, 255, 0.95), transparent 70%),
    radial-gradient(3px 3px at 60px 220px, rgba(225, 240, 255, 0.9), transparent 72%);
  background-size: 620px 360px;
  animation: twinkle 6s ease-in-out infinite;
}

@keyframes twinkle {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

/* 光晕：蓝紫氛围光 */
.bg-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.55;
}

.bg-glow-1 {
  width: 520px;
  height: 520px;
  top: -140px;
  right: -100px;
  background: radial-gradient(circle, rgba(139, 124, 247, 0.22), transparent 70%);
}

.bg-glow-2 {
  width: 460px;
  height: 460px;
  bottom: -120px;
  left: -80px;
  background: radial-gradient(circle, rgba(90, 120, 255, 0.18), transparent 70%);
}

.bg-glow-3 {
  width: 340px;
  height: 340px;
  top: 40%;
  left: 55%;
  background: radial-gradient(circle, rgba(126, 200, 255, 0.14), transparent 70%);
}

/* 移动端弱化光晕，减少渲染负担 */
@media (prefers-reduced-motion: reduce) {
  .stars { animation: none !important; }
  .logo-icon { animation: none !important; }
}

/* 自定义滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #2c3552, #1e2740);
  border-radius: 6px;
  border: 2px solid var(--bg-deep);
}
::-webkit-scrollbar-thumb:hover { background: linear-gradient(180deg, #3a4568, #2c3552); }

body {
  font-family: var(--font);
  /* 星空层(.starry-bg)负责星光与光晕，这里只保留深色底 */
  background: linear-gradient(175deg, #0b0e18 0%, #070a12 50%, #05070d 100%);
  background-color: #05070d;
  background-attachment: fixed;
  color: var(--text);
  min-height: 100vh;
  line-height: 1.65;
}

/* ===== 页头 ===== */
.site-header {
  border-bottom: 1px solid rgba(53, 64, 107, 0.5);
  background: linear-gradient(180deg, rgba(18, 24, 44, 0.92), rgba(10, 13, 22, 0.85));
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

.header-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.logo { display: flex; align-items: center; gap: 14px; }

.logo-icon {
  font-size: 36px;
  filter: drop-shadow(0 0 12px rgba(139, 124, 247, 0.55));
  animation: logoFloat 3.5s ease-in-out infinite;
}

@keyframes logoFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

.logo-text h1 {
  font-size: 24px;
  letter-spacing: 3px;
  font-weight: 800;
  background: linear-gradient(135deg, #fff 20%, var(--gold-soft) 55%, var(--gold) 80%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 30px rgba(139, 124, 247, 0.15);
}

.logo-text h1 .en {
  background: linear-gradient(135deg, var(--gold-soft), var(--gold-bright));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-style: italic;
}

.subtitle {
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 2px;
  margin-top: 2px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-block;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.18s ease;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-ghost {
  color: var(--gold-soft);
  border-color: var(--line-glow);
  background: rgba(139, 124, 247, 0.07);
}

.btn-ghost:hover {
  background: rgba(139, 124, 247, 0.18);
  border-color: var(--gold);
  box-shadow: var(--shadow-gold);
}

/* ===== 容器与工具栏 ===== */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 30px 24px 50px;
}

.toolbar {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 30px;
}

.search-box {
  position: relative;
}

.search-box::before {
  content: "🔍";
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  opacity: 0.6;
  pointer-events: none;
}

.search-box input {
  width: 100%;
  padding: 13px 18px 13px 44px;
  font-size: 15px;
  color: var(--text);
  background: rgba(20, 26, 46, 0.8);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.search-box input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(139, 124, 247, 0.14), 0 0 24px rgba(139, 124, 247, 0.06);
  background: rgba(20, 26, 46, 0.95);
}

.search-box input::placeholder { color: var(--text-faint); }

.filters { display: flex; flex-wrap: wrap; gap: 8px; }

.chip {
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 13px;
  color: var(--text-dim);
  background: rgba(20, 26, 46, 0.7);
  border: 1px solid var(--line);
  cursor: pointer;
  transition: all 0.18s ease;
  font-weight: 500;
}

.chip:hover {
  color: var(--text);
  border-color: var(--line-glow);
  transform: translateY(-1px);
}

.chip.active {
  color: #16100a;
  background: linear-gradient(135deg, var(--gold-soft), var(--gold));
  border-color: transparent;
  font-weight: 800;
  box-shadow: 0 3px 14px rgba(139, 124, 247, 0.3);
}

.sort-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-dim);
}

.sort-row select {
  padding: 7px 12px;
  color: var(--text);
  background: rgba(20, 26, 46, 0.8);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 13px;
  outline: none;
  cursor: pointer;
  transition: border-color 0.2s;
}

.sort-row select:focus { border-color: var(--gold); }

.count { margin-left: auto; font-weight: 600; color: var(--text-dim); }
.count b { color: var(--gold-soft); }

/* ===== MOD 卡片网格 ===== */
.mod-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}

.mod-card {
  background: linear-gradient(160deg, rgba(26, 33, 58, 0.9), rgba(16, 21, 39, 0.95));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
  position: relative;
  overflow: hidden;
}

/* 顶部金色描边光效 */
.mod-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0;
  transition: opacity 0.25s;
}

/* 角落光晕 */
.mod-card::after {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 140px;
  height: 140px;
  background: radial-gradient(circle, rgba(123, 92, 214, 0.12), transparent 70%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.mod-card:hover {
  transform: translateY(-4px);
  border-color: rgba(139, 124, 247, 0.4);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.55), var(--shadow-gold);
}

.mod-card:hover::before { opacity: 1; }
.mod-card:hover::after { opacity: 1; }

.mod-card.clickable { cursor: pointer; }

.mod-card.clickable .mod-title {
  color: var(--gold-soft);
  transition: color 0.18s ease;
}

.mod-card.clickable:hover .mod-title { text-decoration: none; color: var(--gold-bright); }

.mod-card.clickable .mod-title::after {
  content: " ›";
  opacity: 0;
  transition: opacity 0.18s ease;
}

.mod-card.clickable:hover .mod-title::after { opacity: 1; }

/* 封面图 */
.mod-cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  margin-bottom: 2px;
  position: relative;
}

.mod-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 70%, rgba(0, 0, 0, 0.25));
  pointer-events: none;
}

.mod-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}

.mod-card:hover .mod-cover img { transform: scale(1.06); }

.mod-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.mod-title { font-size: 17px; font-weight: 800; letter-spacing: 0.5px; line-height: 1.35; }

.mod-title .en-name {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: var(--text-dim);
  margin-top: 3px;
  letter-spacing: 0.3px;
}

.badge {
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 11px;
  border-radius: 999px;
  white-space: nowrap;
  letter-spacing: 0.5px;
}

.badge-cat {
  color: var(--gold-soft);
  background: rgba(139, 124, 247, 0.1);
  border: 1px solid rgba(139, 124, 247, 0.35);
}

.badge-new {
  color: #fff;
  background: linear-gradient(135deg, #e05555, #c93a3a);
  box-shadow: 0 2px 8px rgba(224, 85, 85, 0.35);
}

.mod-desc {
  font-size: 14px;
  color: var(--text-dim);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 4.2em;
  line-height: 1.6;
}

.mod-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 12px;
  color: var(--text-dim);
}

.mod-meta span {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  padding: 3px 9px;
  border-radius: 6px;
}

.tags { display: flex; flex-wrap: wrap; gap: 6px; }

.tag {
  font-size: 11px;
  color: var(--blue);
  border: 1px dashed rgba(74, 140, 247, 0.45);
  padding: 1px 8px;
  border-radius: 6px;
  background: rgba(74, 140, 247, 0.05);
}

/* ===== 下载按钮区 ===== */
.download-area {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px dashed var(--line);
  padding-top: 14px;
}

.dl-row { display: flex; gap: 8px; align-items: center; }

.dl-btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.18s ease;
  border: 1px solid transparent;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.dl-btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.12), transparent 50%);
  pointer-events: none;
}

.dl-btn.quark {
  background: linear-gradient(135deg, #3d8bf5, #1e5fc4);
}

.dl-btn.quark:hover {
  filter: brightness(1.15);
  box-shadow: 0 5px 18px rgba(47, 128, 237, 0.4);
  transform: translateY(-1px);
}

.dl-btn.baidu {
  background: linear-gradient(135deg, #1a6df0, #0a4bb4);
}

.dl-btn.baidu:hover {
  filter: brightness(1.15);
  box-shadow: 0 5px 18px rgba(15, 99, 224, 0.4);
  transform: translateY(-1px);
}

.dl-btn.steam {
  background: linear-gradient(135deg, #223447, #16222f);
  border: 1px solid rgba(102, 192, 244, 0.35);
}

.dl-btn.steam:hover {
  filter: brightness(1.3);
  box-shadow: 0 5px 18px rgba(102, 192, 244, 0.3);
  transform: translateY(-1px);
}

.dl-btn.disabled {
  background: #222a40;
  color: #5f6880;
  cursor: not-allowed;
  pointer-events: none;
}

.copy-btn {
  flex-shrink: 0;
  padding: 9px 13px;
  font-size: 12px;
  color: var(--text-dim);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.18s ease;
}

.copy-btn:hover {
  color: var(--gold-soft);
  border-color: var(--gold);
  background: rgba(139, 124, 247, 0.08);
}

.extract-code {
  font-size: 12px;
  color: var(--text-dim);
  text-align: right;
}

.extract-code b {
  color: var(--gold-soft);
  margin-left: 4px;
  font-weight: 800;
  letter-spacing: 1px;
}

/* ===== 空状态 / Toast / 页脚 ===== */
.empty {
  text-align: center;
  padding: 70px 0;
  color: var(--text-dim);
  font-size: 15px;
}

.empty p:first-child { font-size: 42px; margin-bottom: 14px; }

.hidden { display: none !important; }

.toast {
  position: fixed;
  left: 50%;
  bottom: 40px;
  transform: translateX(-50%) translateY(20px);
  background: rgba(28, 36, 60, 0.95);
  backdrop-filter: blur(8px);
  color: var(--text);
  border: 1px solid var(--line-glow);
  padding: 11px 24px;
  border-radius: 999px;
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: all 0.25s ease;
  z-index: 100;
  box-shadow: var(--shadow);
}

.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.site-footer {
  margin-top: 50px;
  padding-top: 24px;
  border-top: 1px solid rgba(35, 44, 71, 0.6);
  text-align: center;
  font-size: 12px;
  color: var(--text-faint);
  line-height: 2;
}

.site-footer p:last-child { color: #4a5266; }

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .container { padding: 22px 16px 40px; }
  .header-inner { padding: 13px 16px; }
}

@media (max-width: 640px) {
  .mod-grid { grid-template-columns: 1fr; gap: 16px; }
  .logo-text h1 { font-size: 19px; letter-spacing: 2px; }
  .logo-icon { font-size: 30px; }
  .dl-row { flex-direction: column; }
  .dl-row .dl-btn { width: 100%; }
  .toolbar { gap: 12px; margin-bottom: 22px; }
}