/* ========================================
   🏊 灵池免费原型 — 科技蓝白风格 v2
   ======================================== */

/* === Reset & Variables === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --blue-50: #eff6ff;
  --blue-100: #dbeafe;
  --blue-200: #bfdbfe;
  --blue-300: #93c5fd;
  --blue-400: #60a5fa;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --blue-800: #1e40af;
  --blue-900: #1e3a8a;
  --cyan-400: #22d3ee;
  --cyan-500: #06b6d4;

  --bg-body: #f0f5ff;
  --bg-card: rgba(255,255,255,0.78);
  --bg-card-hover: rgba(255,255,255,0.92);
  --glass-border: rgba(255,255,255,0.5);
  --glass-shadow: 0 8px 32px rgba(31, 38, 135, 0.08);
  --glass-shadow-hover: 0 12px 40px rgba(31, 38, 135, 0.15);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --success: #10b981;
  --error: #ef4444;

  --radius: 16px;
  --radius-sm: 10px;

  /* 炫彩渐变 */
  --gradient-blue: linear-gradient(135deg, #2563eb, #06b6d4);
  --gradient-cyan: linear-gradient(135deg, #06b6d4, #2dd4bf);
  --gradient-purple: linear-gradient(135deg, #6366f1, #8b5cf6);
  --gradient-btn: linear-gradient(135deg, #2563eb, #3b82f6, #06b6d4);
  --gradient-btn-hover: linear-gradient(135deg, #1d4ed8, #2563eb, #0ea5e9);
  --gradient-glow: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --gradient-shimmer: linear-gradient(
    90deg, transparent 0%, rgba(255,255,255,0.25) 50%, transparent 100%
  );
}

html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: linear-gradient(160deg, #e8f0fe 0%, #dce8f8 50%, #f0f5ff 100%);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
}

a { color: var(--blue-600); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--blue-700); }

/* === Header (玻璃态) === */
.header {
  background: rgba(255,255,255,0.72);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.3);
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 1px 12px rgba(31, 38, 135, 0.06);
}
.header-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 28px; height: 64px;
}
.logo {
  font-size: 22px; font-weight: 800;
  background: var(--gradient-btn); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}
.nav { display: flex; align-items: center; gap: 2px; }
.nav-link {
  padding: 8px 18px; border-radius: var(--radius-sm);
  color: var(--text-secondary); font-size: 14px; font-weight: 500;
  transition: all 0.25s;
}
.nav-link:hover { color: var(--blue-600); background: rgba(37,99,235,0.08); }
.nav-link.active { color: var(--blue-600); background: rgba(37,99,235,0.1); font-weight: 600; }
.nav-register {
  background: var(--gradient-btn); color: #fff !important;
  box-shadow: 0 4px 14px rgba(37,99,235,0.3);
  position: relative; overflow: hidden;
}
.nav-register::after {
  content: ''; position: absolute; top: 0; left: -100%;
  width: 100%; height: 100%;
  background: var(--gradient-shimmer);
  animation: shimmer 3s infinite;
}
.nav-register:hover {
  box-shadow: 0 6px 20px rgba(37,99,235,0.4);
  transform: translateY(-1px);
}

@keyframes shimmer {
  0% { left: -100%; }
  100% { left: 200%; }
}

/* === 炫彩按钮 === */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 24px; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 600; cursor: pointer; border: none;
  transition: all 0.3s; position: relative; overflow: hidden;
  letter-spacing: 0.3px;
}
.btn-lg { padding: 14px 32px; font-size: 16px; border-radius: 12px; }
.btn-block { width: 100%; justify-content: center; }

.btn-primary {
  background: var(--gradient-btn);
  background-size: 200% auto;
  color: #fff;
  box-shadow: 0 4px 14px rgba(37,99,235,0.3);
}
.btn-primary:hover {
  background-position: right center;
  box-shadow: 0 8px 28px rgba(37,99,235,0.4);
  transform: translateY(-2px);
}

.btn-success {
  background: linear-gradient(135deg, #059669, #10b981, #34d399);
  background-size: 200% auto;
  color: #fff;
  box-shadow: 0 4px 14px rgba(16,185,129,0.3);
}
.btn-success:hover {
  background-position: right center;
  box-shadow: 0 8px 28px rgba(16,185,129,0.4);
  transform: translateY(-2px);
}

.btn-secondary {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(8px);
  color: var(--text-secondary);
  border: 1px solid var(--glass-border);
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.9);
  border-color: var(--blue-300);
  color: var(--blue-600);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid rgba(37,99,235,0.2);
  color: var(--blue-600);
}
.btn-outline:hover {
  background: var(--gradient-btn);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(37,99,235,0.3);
  transform: translateY(-2px);
}

/* 按钮炫光效果 */
.btn::after {
  content: ''; position: absolute; top: 0; left: -100%;
  width: 100%; height: 100%;
  background: var(--gradient-shimmer);
  animation: shimmer 3s infinite;
  pointer-events: none;
}

.flex-1 { flex: 1; }

/* === Gallery Section === */
.gallery-section {
  max-width: 1200px; margin: 0 auto; padding: 40px 28px;
  position: relative; z-index: 1;
}
.gallery-toolbar {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px; margin-bottom: 24px;
}
.filter-group { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-tag {
  padding: 7px 18px; border-radius: 20px; font-size: 13px; font-weight: 500;
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(8px);
  color: var(--text-secondary);
  border: 1px solid rgba(255,255,255,0.4);
  transition: all 0.25s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.filter-tag:hover {
  background: rgba(255,255,255,0.9);
  border-color: var(--blue-300);
  color: var(--blue-600);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37,99,235,0.12);
}
.filter-tag.active {
  background: var(--gradient-btn);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(37,99,235,0.3);
}
.cat-count {
  display: inline-block; margin-left: 6px;
  font-size: 11px; font-weight: 600;
  background: rgba(255,255,255,0.25); padding: 0 7px;
  border-radius: 10px; line-height: 18px;
}
.filter-tag.active .cat-count {
  background: rgba(255,255,255,0.2);
}
.sort-group {
  display: flex; gap: 4px;
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-sm);
  padding: 4px;
  border: 1px solid rgba(255,255,255,0.3);
}
.sort-btn {
  padding: 6px 16px; border-radius: 8px; font-size: 13px; font-weight: 500;
  color: var(--text-muted); transition: all 0.2s; cursor: pointer;
}
.sort-btn.active {
  background: var(--gradient-btn); color: #fff;
  box-shadow: 0 2px 8px rgba(37,99,235,0.2);
}
.sort-btn:hover:not(.active) { color: var(--blue-600); }

/* === Search === */
.search-bar {
  display: flex; gap: 10px; margin-bottom: 32px;
}
.search-input {
  flex: 1; padding: 13px 20px; border-radius: 12px;
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.4);
  color: var(--text-primary); font-size: 14px; outline: none;
  transition: all 0.25s; box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.search-input:focus {
  border-color: var(--blue-400);
  background: rgba(255,255,255,0.9);
  box-shadow: 0 0 0 4px rgba(37,99,235,0.1), 0 4px 16px rgba(37,99,235,0.1);
}
.search-input::placeholder { color: var(--text-muted); }
.search-btn {
  padding: 13px 28px; border-radius: 12px;
  background: var(--gradient-btn);
  background-size: 200% auto;
  color: #fff; border: none; cursor: pointer;
  font-size: 14px; font-weight: 600; transition: all 0.3s;
  box-shadow: 0 4px 14px rgba(37,99,235,0.3);
}
.search-btn:hover {
  background-position: right center;
  box-shadow: 0 8px 28px rgba(37,99,235,0.4);
  transform: translateY(-2px);
}

/* === 原型卡片（玻璃态） === */
.proto-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.proto-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  display: block;
  box-shadow: var(--glass-shadow);
}
.proto-card:hover {
  transform: translateY(-8px);
  background: var(--bg-card-hover);
  box-shadow: var(--glass-shadow-hover);
  border-color: rgba(59, 130, 246, 0.25);
}
.card-preview {
  aspect-ratio: 16/10; overflow: hidden; position: relative;
  background: linear-gradient(135deg, #e8f0fe, #d0dce8);
}
.card-preview img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.4s;
}
.proto-card:hover .card-preview img { transform: scale(1.05); }
.card-preview-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 52px;
}
.card-category {
  position: absolute; top: 10px; left: 10px;
  padding: 5px 14px; border-radius: 20px; font-size: 11px; font-weight: 600;
  color: #fff; backdrop-filter: blur(8px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.card-category[data-cat="1"]  { background: rgba(59,130,246,0.88); }  /* 后台管理-蓝 */
.card-category[data-cat="2"]  { background: rgba(139,92,246,0.88); }  /* 移动应用-紫 */
.card-category[data-cat="3"]  { background: rgba(6,182,212,0.88); }  /* 数据看板-青 */
.card-category[data-cat="4"]  { background: rgba(16,185,129,0.88); } /* 官网展示-绿 */
.card-category[data-cat="5"]  { background: rgba(245,158,11,0.88); } /* 电商零售-橙 */
.card-category[data-cat="6"]  { background: rgba(236,72,153,0.88); } /* 社交社区-粉 */
.card-category[data-cat="7"]  { background: rgba(99,102,241,0.88); } /* 效率工具-靛 */
.card-category[data-cat="8"]  { background: rgba(107,114,128,0.88); } /* 其他-灰 */
.card-category[data-cat="9"]  { background: rgba(20,184,166,0.88); } /* 教育学习-青绿 */
.card-category[data-cat="10"] { background: rgba(239,68,68,0.88); }  /* 医疗健康-红 */
.card-category[data-cat="11"] { background: rgba(217,119,6,0.88); }  /* 金融财务-琥珀 */
.card-body { padding: 20px; }
.card-title {
  font-size: 15px; font-weight: 600; margin-bottom: 6px;
  color: var(--text-primary);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.card-desc {
  font-size: 13px; color: var(--text-muted); margin-bottom: 12px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.card-meta {
  display: flex; gap: 18px; font-size: 12px; color: var(--text-muted);
}

/* === Pagination === */
.pagination {
  display: flex; justify-content: center; align-items: center; gap: 12px;
  margin-top: 48px;
}
.page-btn {
  padding: 10px 22px; border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.4);
  color: var(--text-secondary); font-size: 14px; font-weight: 500;
  transition: all 0.25s; box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.page-btn:hover {
  background: rgba(255,255,255,0.9);
  border-color: var(--blue-300);
  color: var(--blue-600);
  transform: translateY(-1px);
}
.page-info { color: var(--text-muted); font-size: 14px; }

/* === Auth Pages (玻璃态) === */
.auth-page {
  display: flex; justify-content: center; align-items: center;
  min-height: 80vh; padding: 24px;
}
.auth-card {
  width: 100%; max-width: 420px;
  background: rgba(255,255,255,0.78);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius);
  padding: 40px;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}
.auth-header { text-align: center; margin-bottom: 28px; }
.auth-icon { font-size: 44px; display: block; margin-bottom: 10px; }
.auth-header h2 { font-size: 22px; background: var(--gradient-btn); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 4px; background-clip: text; }
.auth-header p { color: var(--text-secondary); font-size: 14px; }
.auth-form { display: flex; flex-direction: column; gap: 18px; }
.auth-footer { text-align: center; margin-top: 20px; color: var(--text-muted); font-size: 14px; }
.auth-footer a { font-weight: 600; }

/* === Form === */
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 13px; color: var(--text-secondary); font-weight: 600; }
.form-input {
  padding: 12px 16px; border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.4);
  color: var(--text-primary); font-size: 14px; outline: none; width: 100%;
  transition: all 0.25s;
}
.form-input:focus {
  border-color: var(--blue-400);
  background: rgba(255,255,255,0.9);
  box-shadow: 0 0 0 4px rgba(37,99,235,0.1);
}
textarea.form-input { resize: vertical; min-height: 80px; font-family: inherit; }
select.form-input { cursor: pointer; }
.form-row { display: flex; gap: 12px; }
.form-row .form-group { flex: 1; }

/* === File Upload === */
.file-upload-area { position: relative; }
.file-upload-area input[type="file"] { display: none; }
.file-label {
  display: flex; align-items: center; gap: 10px;
  padding: 32px;
  border: 2px dashed rgba(37,99,235,0.25);
  border-radius: var(--radius-sm); cursor: pointer;
  justify-content: center; transition: all 0.25s;
  background: rgba(37,99,235,0.04);
}
.file-label:hover {
  border-color: var(--blue-400);
  background: rgba(37,99,235,0.08);
  box-shadow: 0 4px 16px rgba(37,99,235,0.08);
}
.file-icon { font-size: 32px; }
.file-text { color: var(--text-secondary); font-size: 14px; font-weight: 500; }

/* === Alert === */
.alert {
  padding: 14px 18px; border-radius: var(--radius-sm); margin-bottom: 16px;
  font-size: 14px; font-weight: 500;
}
.alert-error {
  background: rgba(239,68,68,0.1);
  color: #dc2626;
  border: 1px solid rgba(239,68,68,0.15);
  backdrop-filter: blur(8px);
}
.alert-success {
  background: rgba(16,185,129,0.1);
  color: #059669;
  border: 1px solid rgba(16,185,129,0.15);
  backdrop-filter: blur(8px);
}
.alert-success a { color: #059669; text-decoration: underline; font-weight: 600; }

/* === Empty State === */
.empty-state { text-align: center; padding: 80px 20px; }
.empty-icon { font-size: 56px; margin-bottom: 16px; }
.empty-state h3 { font-size: 20px; margin-bottom: 8px; }
.empty-state p { color: var(--text-secondary); margin-bottom: 24px; }

/* === Detail Page === */
.detail-page { max-width: 1100px; margin: 0 auto; padding: 40px 28px; position: relative; z-index: 1; }
.detail-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.detail-preview {
  border-radius: var(--radius); overflow: hidden;
  background: linear-gradient(135deg, #e8f0fe, #d0dce8);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}
.detail-img { width: 100%; display: block; }
.detail-img-placeholder {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 80px 20px; font-size: 72px;
}
.detail-img-placeholder p { margin-top: 12px; font-size: 16px; color: var(--text-muted); }
.detail-info { display: flex; flex-direction: column; gap: 16px; }
.detail-meta-top { display: flex; gap: 12px; align-items: center; }
.detail-category {
  padding: 5px 16px; border-radius: 20px; font-size: 13px; font-weight: 600;
  backdrop-filter: blur(8px);
}
.detail-category[data-cat="1"]  { background: rgba(59,130,246,0.12); color: #2563eb; }
.detail-category[data-cat="2"]  { background: rgba(139,92,246,0.12); color: #7c3aed; }
.detail-category[data-cat="3"]  { background: rgba(6,182,212,0.12); color: #0891b2; }
.detail-category[data-cat="4"]  { background: rgba(16,185,129,0.12); color: #059669; }
.detail-category[data-cat="5"]  { background: rgba(245,158,11,0.12); color: #d97706; }
.detail-category[data-cat="6"]  { background: rgba(236,72,153,0.12); color: #db2777; }
.detail-category[data-cat="7"]  { background: rgba(99,102,241,0.12); color: #6366f1; }
.detail-category[data-cat="8"]  { background: rgba(107,114,128,0.12); color: #6b7280; }
.detail-category[data-cat="9"]  { background: rgba(20,184,166,0.12); color: #0d9488; }
.detail-category[data-cat="10"] { background: rgba(239,68,68,0.12); color: #dc2626; }
.detail-category[data-cat="11"] { background: rgba(217,119,6,0.12); color: #b45309; }
.detail-date { font-size: 13px; color: var(--text-muted); }
.detail-title { font-size: 28px; line-height: 1.3; background: var(--gradient-btn); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.detail-stats-bar {
  display: flex; gap: 24px; font-size: 14px; color: var(--text-secondary);
  padding: 14px 18px;
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
}
.detail-stats-bar strong { color: var(--blue-600); }
.detail-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  padding: 4px 14px; border-radius: 20px; font-size: 12px; font-weight: 500;
  background: rgba(37,99,235,0.06);
  color: var(--blue-600);
  border: 1px solid rgba(37,99,235,0.15);
}
.detail-desc {
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(8px);
  padding: 18px; border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  border-left: 3px solid var(--blue-500);
}
.detail-desc h3 { font-size: 14px; margin-bottom: 8px; color: var(--blue-600); }
.detail-desc p { font-size: 14px; color: var(--text-secondary); line-height: 1.8; }
.detail-actions { display: flex; gap: 10px; margin-top: 8px; }

/* === Profile Page === */
.profile-page { max-width: 1100px; margin: 0 auto; padding: 40px 28px; position: relative; z-index: 1; }
.profile-header {
  display: flex; align-items: center; gap: 20px; margin-bottom: 32px;
  padding: 28px;
  background: rgba(255,255,255,0.78);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}
.profile-avatar {
  width: 72px; height: 72px; border-radius: 50%;
  background: var(--gradient-btn);
  background-size: 200% auto;
  display: flex; align-items: center; justify-content: center;
  font-size: 30px; font-weight: 700; color: #fff;
  box-shadow: 0 4px 14px rgba(37,99,235,0.3);
}
.profile-header h2 { font-size: 22px; color: var(--text-primary); }
.profile-header p { color: var(--text-secondary); font-size: 14px; }
.profile-tabs {
  display: flex; gap: 4px; margin-bottom: 24px;
  border-bottom: 1px solid rgba(255,255,255,0.3);
}
.tab {
  padding: 10px 22px; font-size: 14px; font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  transition: all 0.2s; margin-bottom: -1px;
}
.tab.active { color: var(--blue-600); border-bottom-color: var(--blue-600); }
.tab:hover:not(.active) { color: var(--blue-600); }
.profile-content .proto-card { position: relative; }
.btn-delete {
  position: absolute; top: 10px; right: 10px;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  color: var(--text-muted); cursor: pointer;
  width: 34px; height: 34px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; opacity: 0; transition: opacity 0.25s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.proto-card:hover .btn-delete { opacity: 1; }
.btn-delete:hover { background: #fef2f2; color: var(--error); border-color: var(--error); }

/* === Upload Page === */
.upload-page {
  display: flex; justify-content: center; padding: 40px 28px;
  position: relative; z-index: 1;
}
.upload-card {
  width: 100%; max-width: 600px;
  background: rgba(255,255,255,0.78);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius);
  padding: 40px;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

/* === 上传模式切换 === */
.upload-mode-switch {
  display: flex; gap: 8px; margin-bottom: 24px;
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-sm);
  padding: 4px;
  border: 1px solid rgba(255,255,255,0.3);
}
.mode-btn {
  flex: 1; padding: 10px 16px; border: none; border-radius: 8px;
  font-size: 13px; font-weight: 600; cursor: pointer;
  background: transparent; color: var(--text-secondary);
  transition: all 0.25s;
}
.mode-btn.active {
  background: var(--gradient-btn); color: #fff;
  box-shadow: 0 2px 8px rgba(37,99,235,0.2);
}
.mode-btn:hover:not(.active) { color: var(--blue-600); }
.desc-hint { font-weight: 400; color: var(--text-muted); font-size: 12px; }

/* === 文件夹文件列表 === */
.folder-files {
  margin-top: 10px;
  background: rgba(37,99,235,0.04);
  border: 1px solid rgba(37,99,235,0.1);
  border-radius: var(--radius-sm);
  padding: 12px;
  max-height: 200px; overflow-y: auto;
}
.folder-files-header {
  font-size: 12px; font-weight: 600; color: var(--text-secondary);
  margin-bottom: 8px;
}
.folder-files-list { display: flex; flex-direction: column; gap: 4px; }
.folder-file-item {
  font-size: 12px; color: var(--text-muted);
  padding: 3px 6px; border-radius: 4px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.folder-file-item.more {
  color: var(--blue-500); font-weight: 500;
  text-align: center; padding: 6px;
}
.folder-file-item:hover {
  background: rgba(37,99,235,0.06);
  color: var(--text-secondary);
}

/* === AI 分析状态 === */
.ai-status {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px; border-radius: var(--radius-sm);
  margin-bottom: 16px; font-size: 13px; font-weight: 500;
  backdrop-filter: blur(8px); transition: all 0.3s;
}
.ai-status.loading {
  background: rgba(37,99,235,0.08);
  border: 1px solid rgba(37,99,235,0.15);
  color: var(--blue-600);
}
.ai-status.success {
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.15);
  color: #059669;
}
.ai-status.info {
  background: rgba(96,165,250,0.08);
  border: 1px solid rgba(96,165,250,0.15);
  color: var(--blue-600);
}
.ai-status.error {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.15);
  color: #dc2626;
}
.ai-status-icon { font-size: 20px; flex-shrink: 0; }
.ai-status-text { flex: 1; }
.ai-spinner {
  width: 16px; height: 16px;
  border: 2px solid rgba(37,99,235,0.2);
  border-top-color: var(--blue-500);
  border-radius: 50%;
  animation: ai-spin 0.7s linear infinite;
  flex-shrink: 0;
}
@keyframes ai-spin {
  to { transform: rotate(360deg); }
}

/* === Footer === */
.footer {
  border-top: 1px solid rgba(255,255,255,0.3);
  margin-top: 80px; padding: 28px 24px;
  background: rgba(255,255,255,0.5);
  backdrop-filter: blur(12px);
  position: relative; z-index: 1;
}
.footer-inner {
  max-width: 1200px; margin: 0 auto;
  text-align: center; color: var(--text-muted); font-size: 13px;
}

/* === Responsive === */
@media (max-width: 768px) {
  .detail-layout { grid-template-columns: 1fr; }
  .gallery-section { padding: 24px 16px; }
  .gallery-toolbar { flex-direction: column; align-items: stretch; }
  .form-row { flex-direction: column; gap: 16px; }
  .detail-actions { flex-direction: column; }
  .proto-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
  .auth-card { padding: 24px; }
  .upload-card { padding: 24px; }
  .header-inner { padding: 0 16px; }
  .detail-page, .profile-page { padding: 24px 16px; }
}

/* ===== 价格标签 ===== */
.card-price {
  font-weight: 700;
  font-size: 14px;
}

.detail-price-tag {
  font-weight: 700;
  font-size: 16px;
}

.buy-btn {
  background: linear-gradient(135deg, #f59e0b, #d97706) !important;
} /* 付费原型购买按钮橙色 */

/* 免费 = 蓝色 */
.free-text { color: var(--blue-600) !important; }

/* 金额 = 橙色 */
.price-amount { color: #f59e0b; }

/* ===== 积分系统 ===== */
.coins-display {
  background: linear-gradient(135deg, #f59e0b, #d97706) !important;
  color: #fff !important;
  border-radius: 20px !important;
  padding: 4px 14px !important;
  font-weight: 600;
  font-size: 13px;
}

.coins-badge {
  display: inline-block;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #fff;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
}
.coins-badge.earnings { background: linear-gradient(135deg, #059669, #047857); }

.coins-balance-card {
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  color: #fff;
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  margin-bottom: 24px;
}
.coins-balance-card.earnings-card { background: linear-gradient(135deg, #34d399, #059669); }
.coins-amount { font-size: 48px; font-weight: 800; }
.coins-label { font-size: 14px; opacity: 0.9; margin-top: 4px; }
.earnings-sub { font-size: 13px; opacity: 0.7; margin-top: 4px; }

.coins-tx-list { margin-top: 16px; }
.coins-tx-list h3 { font-size: 16px; margin-bottom: 12px; color: var(--text-primary); }
.tx-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px; background: rgba(255,255,255,0.6);
  border-radius: 10px; margin-bottom: 6px;
  font-size: 14px;
}
.tx-reason { flex: 1; color: var(--text-primary); }
.tx-amount { font-weight: 700; font-size: 15px; min-width: 50px; text-align: right; }
.tx-amount.earn { color: #059669; }
.tx-amount.spend { color: #dc2626; }
.tx-balance { color: var(--text-muted); font-size: 12px; min-width: 60px; }
.tx-time { color: var(--text-muted); font-size: 12px; }

.profile-coins { display: flex; gap: 8px; margin-top: 8px; }

.price-input-group { display: flex; align-items: center; gap: 8px; }
.price-input-group .form-input { flex: 1; }
.price-unit { font-size: 13px; color: var(--text-muted); white-space: nowrap; }