:root {
  --bg: #0E1116;
  --panel: #171C24;
  --panel-2: #1D242E;
  --line: #2A323E;
  --amber: #E8B84B;
  --teal: #4C9E8F;
  --text: #E8EAED;
  --text-2: #8A93A3;
  --red: #D85A30;
  --mono: "Space Mono", "Courier New", monospace;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  min-height: 100vh;
  background-image:
    linear-gradient(rgba(232,184,75,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232,184,75,0.035) 1px, transparent 1px);
  background-size: 42px 42px;
}

/* ===== topbar ===== */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(14,17,22,0.92);
  backdrop-filter: blur(6px);
  z-index: 10;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-icon {
  font-size: 24px;
  color: var(--amber);
  border: 2px solid var(--amber);
  padding: 8px;
  border-radius: 0;
  transform: rotate(-4deg);
}
.brand-text h1 {
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 2px;
}
.brand-sub {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-2);
  letter-spacing: 3px;
}
.topbar::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -5px;
  height: 5px;
  background: repeating-linear-gradient(
    -45deg,
    var(--amber) 0 10px,
    #151007 10px 20px
  );
  opacity: 0.85;
}
.topbar-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-2);
}
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--amber);
  animation: pulse 1.6s infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* ===== hero / upload ===== */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  padding: 64px 40px 40px;
  max-width: 1180px;
  margin: 0 auto;
}
.hero-left { padding-top: 12px; }
.hero-kicker {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--teal);
  letter-spacing: 3px;
  margin-bottom: 18px;
}
.hero-left h2 {
  font-family: var(--mono);
  font-size: 46px;
  line-height: 1.15;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 1px;
}
.hero-left h2::after {
  content: "";
  display: block;
  width: 90px;
  height: 4px;
  background: var(--amber);
  margin-top: 22px;
}
.hero-desc {
  margin-top: 24px;
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.9;
}
.hero-install { margin-top: 26px; }
.install-link {
  display: flex; align-items: center; gap: 14px;
  background: var(--panel); border: 1px solid var(--line);
  border-left: 4px solid var(--teal);
  padding: 14px 18px; text-decoration: none; transition: all 0.15s;
  max-width: 420px;
}
.install-link:hover { border-color: var(--teal); transform: translateY(-1px); background: var(--panel-2); }
.install-link > i:first-child {
  font-size: 20px; color: var(--teal); width: 30px; text-align: center;
}
.install-link-text { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.install-link-text b {
  font-family: var(--mono); font-size: 15px; color: var(--text); letter-spacing: 1px;
}
.install-link-text small {
  color: var(--text-2); font-size: 12px; margin-top: 4px; line-height: 1.5;
}
.install-arrow { color: var(--text-2); font-size: 14px; transition: all 0.15s; }
.install-link:hover .install-arrow { color: var(--amber); transform: translateX(3px); }

.upload-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 4px solid var(--amber);
  padding: 26px 26px 20px;
  position: relative;
  transform: rotate(0.4deg);
}
.upload-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(232,184,75,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232,184,75,0.05) 1px, transparent 1px);
  background-size: 22px 22px;
  pointer-events: none;
}
.panel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--amber);
  margin-bottom: 20px;
}
form { position: relative; }
.field { display: block; margin-bottom: 14px; }
.field-label {
  display: block;
  font-size: 12px;
  color: var(--text-2);
  margin-bottom: 6px;
  letter-spacing: 1px;
}
.field-label .req { color: var(--red); margin-left: 2px; }
input[type="text"], select {
  border-radius: 0;
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 10px 12px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}
input[type="text"]:focus, select:focus { border-color: var(--teal); }
.field-row { display: flex; gap: 12px; }
.field-row .field { flex: 1; }

.file-drop {
  border-radius: 0;
  border: 1px dashed var(--line);
  background: var(--panel-2);
  padding: 18px 12px;
  text-align: center;
  color: var(--text-2);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}
.file-drop:hover, .file-drop.dragover {
  border-color: var(--amber);
  color: var(--text);
}
.file-drop-icon { display: block; font-size: 22px; color: var(--amber); margin-bottom: 8px; }
.file-drop.has-file { border-color: var(--teal); color: var(--teal); }
.img-drop { padding: 12px 10px; }
.img-drop .file-drop-icon { font-size: 18px; margin-bottom: 4px; }
textarea {
  border-radius: 0;
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 10px 12px;
  font-size: 14px;
  font-family: var(--sans);
  outline: none;
  resize: vertical;
  transition: border-color 0.2s;
}
textarea:focus { border-color: var(--teal); }
.img-preview {
  margin-top: 8px;
  max-width: 100%;
  max-height: 140px;
  border: 1px solid var(--line);
  display: block;
}
.mod-preset {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}
.mod-chip {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text-2);
  font-size: 11.5px;
  padding: 4px 9px;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}
.mod-chip:hover { border-color: var(--teal); color: var(--text); }
.mod-chip.active {
  background: rgba(76,158,143,0.15);
  border-color: var(--teal);
  color: var(--teal);
}
.tag-auto-tip {
  font-size: 12px;
  color: var(--text-2);
  margin: 4px 0 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.tag-auto-tip i { color: var(--amber); }

.btn-submit {
  border-radius: 0;
  width: 100%;
  margin-top: 6px;
  background: var(--amber);
  color: #151007;
  border: none;
  padding: 13px;
  font-size: 15px;
  font-weight: 700;
  font-family: var(--mono);
  letter-spacing: 2px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: transform 0.12s, background 0.2s;
}
.btn-submit:hover { background: #f5c85e; transform: translateY(-1px); }
.btn-submit:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }
.form-tip {
  margin-top: 12px;
  font-size: 13px;
  min-height: 18px;
}
.form-tip.ok { color: var(--teal); }
.form-tip.err { color: var(--red); }

/* ===== library ===== */
.library {
  max-width: 1180px;
  margin: 10px auto 0;
  padding: 0 40px 60px;
}
.library-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid var(--line);
  padding-bottom: 14px;
  margin-bottom: 26px;
}
.library-head h3 {
  font-family: var(--mono);
  font-size: 18px;
  letter-spacing: 2px;
  color: var(--text);
}
.library-head h3 i { color: var(--teal); margin-right: 8px; }
.library-count { font-family: var(--mono); font-size: 13px; color: var(--text-2); }

.search-bar {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 26px;
}
.search-input-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 0 14px;
  max-width: 480px;
  transition: border-color 0.2s;
}
.search-input-wrap:focus-within { border-color: var(--teal); }
.search-input-wrap i { color: var(--text-2); font-size: 14px; }
.search-input-wrap input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 14px;
  padding: 11px 0;
  font-family: var(--sans);
}
.search-input-wrap input::placeholder { color: var(--text-2); }
.search-clear {
  background: transparent;
  border: none;
  color: var(--text-2);
  cursor: pointer;
  font-size: 13px;
  padding: 4px;
}
.search-clear:hover { color: var(--red); }
.tag-filter { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.tag-filter .tag-chip {
  font-family: var(--mono);
  font-size: 12px;
  padding: 4px 12px;
  border: 1px solid var(--line);
  color: var(--text-2);
  background: var(--panel);
  cursor: pointer;
  transition: all 0.15s;
}
.tag-filter .tag-chip:hover { border-color: var(--teal); color: var(--text); }
.tag-filter .tag-chip.active {
  border-color: var(--amber);
  color: var(--amber);
  background: rgba(232,184,75,0.08);
}
.tag-filter .tag-filter-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-2);
  letter-spacing: 2px;
}
/* 建筑物筛选：图标按钮（无图标时为文字 chip） */
.tag-filter .entity-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 4px;
  font-family: var(--mono);
  font-size: 11px;
  border: 1px solid var(--line);
  color: var(--text-2);
  background: var(--panel);
  cursor: pointer;
  transition: all 0.15s;
  overflow: hidden;
}
.tag-filter .entity-chip .entity-icon {
  width: 100%;
  height: 100%;
  object-fit: contain;
  image-rendering: pixelated;
}
.tag-filter .entity-chip:hover { border-color: var(--teal); color: var(--text); }
.tag-filter .entity-chip.active {
  border-color: var(--amber);
  color: var(--amber);
  background: rgba(232,184,75,0.08);
  box-shadow: 0 0 0 1px var(--amber);
}
.search-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.sort-bar {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--panel);
  border: 1px solid var(--line);
}
.sort-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--text-2);
  padding: 0 12px;
  border-right: 1px solid var(--line);
}
.sort-btn {
  background: transparent;
  border: none;
  border-right: 1px solid var(--line);
  color: var(--text-2);
  font-family: var(--mono);
  font-size: 12px;
  padding: 11px 14px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s;
}
.sort-btn:last-child { border-right: none; }
.sort-btn i { font-size: 11px; }
.sort-btn:hover { color: var(--text); background: var(--panel-2); }
.sort-btn.active {
  color: #151007;
  background: var(--amber);
  font-weight: 700;
}
.game-filter {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--panel);
  border: 1px solid var(--line);
  align-self: flex-start;
}
.game-btn {
  background: transparent;
  border: none;
  border-right: 1px solid var(--line);
  color: var(--text-2);
  font-size: 13px;
  padding: 9px 14px;
  cursor: pointer;
  transition: all 0.15s;
}
.game-btn:last-child { border-right: none; }
.game-btn:hover { color: var(--text); background: var(--panel-2); }
.game-btn.active {
  color: #0B1513;
  background: var(--teal);
  font-weight: 700;
}

.bp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.bp-card {
  background: var(--panel);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: border-color 0.2s, transform 0.15s;
}
.bp-card:hover { border-color: var(--amber); transform: translateY(-2px); }
.bp-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--panel-2);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.bp-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.bp-img .img-ph {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-2);
  letter-spacing: 2px;
}
.bp-body { padding: 16px 18px 14px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.bp-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.tag {
  border-radius: 0;
  font-family: var(--mono);
  font-size: 11px;
  padding: 3px 8px;
  letter-spacing: 1px;
  border: 1px solid var(--teal);
  color: var(--teal);
}
.bp-title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text);
  word-break: break-word;
}
.bp-meta {
  font-size: 12px;
  color: var(--text-2);
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: baseline;
}
.bp-meta .author { color: var(--amber); font-weight: 700; }
.bp-meta i { margin-right: 4px; }
.bp-mods {
  font-size: 12px;
  color: var(--text-2);
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-wrap: wrap;
}
.bp-mods .mods-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--amber);
  border: 1px solid var(--amber);
  padding: 1px 6px;
  flex-shrink: 0;
}
.bp-desc {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.bp-stats {
  display: flex;
  gap: 8px 12px;
  flex-wrap: wrap;
}
.stat-item {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-2);
}
.stat-icon {
  width: 20px;
  height: 20px;
  /* Factorio 2.0 图标是 120x64 宽幅格式，object-fit: cover 按比例居中裁剪，避免压扁变形 */
  object-fit: cover;
  object-position: center;
  image-rendering: pixelated;
  border: 1px solid var(--line);
  background: var(--panel-2);
}
.stat-count { color: var(--amber); font-weight: 700; }
.stat-text { color: var(--text-2); }
.bp-foot {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--line);
  padding: 12px 18px 14px;
  background: var(--panel-2);
}
.bp-size { font-family: var(--mono); font-size: 12px; color: var(--text-2); }
.btn-copy {
  border-radius: 0;
  background: var(--amber);
  color: #151007;
  border: none;
  padding: 8px 18px;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background 0.2s, transform 0.12s;
}
.btn-copy:hover { background: #f5c85e; transform: translateY(-1px); }
.btn-copy.copied {
  border-radius: 0; background: var(--teal); color: #0B1513; }
.btn-copy:disabled { opacity: 0.6; cursor: wait; }
.empty-tip {
  text-align: left;
  color: var(--text-2);
  font-size: 14px;
  padding: 40px 0;
  border: 1px dashed var(--line);
  padding-left: 20px;
}

.pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 30px;
  flex-wrap: wrap;
}
.pager-info {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-2);
  margin-right: 10px;
  letter-spacing: 1px;
}
.page-btn {
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--text-2);
  font-family: var(--mono);
  font-size: 12px;
  min-width: 34px;
  padding: 7px 10px;
  cursor: pointer;
  transition: all 0.15s;
}
.page-btn:hover:not(:disabled) { border-color: var(--amber); color: var(--text); }
.page-btn.active {
  background: var(--amber);
  color: #151007;
  border-color: var(--amber);
  font-weight: 700;
}
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.page-ellipsis { color: var(--text-2); padding: 0 2px; }

/* ===== lightbox 大图 ===== */
.lightbox[hidden] { display: none !important; }
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px;
}
.lightbox-mask {
  position: absolute;
  inset: 0;
  background: rgba(10,12,16,0.92);
}
.lightbox-panel {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--amber);
  max-width: 900px;
  width: 100%;
  max-height: 92vh;
  overflow-y: auto;
  animation: lbIn 0.18s ease-out;
}
@keyframes lbIn {
  from { opacity: 0; transform: scale(0.97); }
  to { opacity: 1; transform: scale(1); }
}
.lb-close {
  position: sticky;
  top: 0;
  float: right;
  margin: 10px;
  width: 34px;
  height: 34px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text-2);
  font-size: 15px;
  cursor: pointer;
  z-index: 2;
  transition: all 0.15s;
}
.lb-close:hover { color: var(--red); border-color: var(--red); }
.lb-img {
  width: 100%;
  min-height: 220px;
  background: #0A0D11;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.lb-img img {
  width: 100%;
  display: block;
}
.lb-noph {
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 3px;
  color: var(--text-2);
  padding: 60px 0;
}
.lb-info {
  padding: 22px 26px 26px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.lb-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  word-break: break-word;
}
.lb-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-2);
}
.lb-meta .author { color: var(--amber); font-weight: 700; }
.lb-meta i { margin-right: 4px; }
.lb-mods { font-size: 13px; color: var(--text-2); display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.lb-mods .mods-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--amber);
  border: 1px solid var(--amber);
  padding: 1px 6px;
}
.lb-desc {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: break-word;
}
.lb-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.lb-tags .tag {
  font-family: var(--mono);
  font-size: 11px;
  padding: 3px 8px;
  border: 1px solid var(--teal);
  color: var(--teal);
}
/* 大图模式：全部建筑统计（多列网格） */
.lb-stats-title {
  margin-top: 12px;
  font-size: 13px;
  color: var(--text-2);
  font-weight: bold;
}
.lb-stats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 6px 10px;
  margin-top: 8px;
  padding: 10px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  max-height: 260px;
  overflow-y: auto;
}
.lb-copy {
  margin-top: 4px;
  align-self: flex-start;
  background: var(--amber);
  color: #151007;
  border: none;
  padding: 10px 22px;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background 0.2s;
}
.lb-copy:hover { background: #f5c85e; }
.lb-copy.copied { background: var(--teal); color: #0B1513; }

/* ===== footer ===== */
.foot {
  border-top: 1px solid var(--line);
  padding: 22px 40px;
  display: flex;
  justify-content: space-between;
  color: var(--text-2);
  font-size: 13px;
}
.foot-mono { font-family: var(--mono); font-size: 12px; letter-spacing: 2px; }

/* ===== responsive ===== */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding: 40px 20px 30px; gap: 30px; }
  .hero-left h2 { font-size: 34px; }
  .bp-grid { grid-template-columns: 1fr; }
  .bp-card:first-child { grid-column: span 1; }
  .topbar { padding: 16px 20px; }
  .library { padding: 0 20px 40px; }
  .foot { padding: 18px 20px; flex-direction: column; gap: 8px; }
}