/* ==============================================================================
   style.css - 岩松 U 盘数智定制与选型中台 (Cyber-Gold 曜石黑金高科技亮丽风格)
   遵循: ADR-0310 商务亮底科技风 / tea_先勇 黑金微光 / 纯原生 CSS3
   ============================================================================== */

:root {
  --bg-dark: #0B0F19;
  --bg-card: rgba(18, 24, 38, 0.85);
  --bg-card-hover: rgba(28, 36, 56, 0.95);
  --border-color: rgba(217, 119, 6, 0.25);
  --border-glow: rgba(245, 158, 11, 0.45);
  
  --gold-primary: #F59E0B;
  --gold-light: #FDE68A;
  --gold-dark: #B45309;
  
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --text-dark: #0F172A;
  
  --cyan-accent: #06B6D4;
  --green-accent: #10B981;
  --purple-accent: #8B5CF6;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  
  --shadow-gold: 0 8px 32px rgba(245, 158, 11, 0.15);
  --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.45);
}

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

body {
  font-family: 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

/* --- 1. 顶部科技悬浮导航 --- */
.cyber-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 0;
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  font-size: 28px;
  background: linear-gradient(135deg, var(--gold-light), var(--gold-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-text .main-title {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.5px;
  background: linear-gradient(90deg, #FFFFFF, var(--gold-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-text .sub-title {
  font-family: 'Outfit', sans-serif;
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 1.2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.25s ease;
}

.nav-links a:hover {
  color: var(--gold-primary);
}

.nav-btn {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 1px solid transparent;
}

.draft-btn {
  background: rgba(30, 41, 59, 0.8);
  color: var(--text-main);
  border-color: rgba(148, 163, 184, 0.3);
}

.draft-btn:hover {
  background: rgba(51, 65, 85, 0.9);
  border-color: var(--cyan-accent);
  color: var(--cyan-accent);
}

.order-btn {
  background: rgba(15, 23, 42, 0.8);
  color: var(--text-main);
  border-color: rgba(99, 102, 241, 0.4);
}

.order-btn:hover {
  border-color: #818CF8;
  color: #818CF8;
}

.vip-btn {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(217, 119, 6, 0.3));
  border: 1px solid var(--gold-primary);
  color: var(--gold-light);
}

.vip-btn:hover {
  background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
  color: var(--text-dark);
  box-shadow: 0 0 15px rgba(245, 158, 11, 0.4);
}

/* --- 2. Hero 区域 --- */
.hero-section {
  position: relative;
  padding: 70px 24px 50px;
  text-align: center;
  overflow: hidden;
}

.hero-bg-glow {
  position: absolute;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 400px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.18) 0%, rgba(11, 15, 25, 0) 70%);
  pointer-events: none;
}

.hero-content {
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid var(--border-glow);
  border-radius: 30px;
  font-size: 13px;
  font-weight: 700;
  color: var(--gold-light);
  margin-bottom: 20px;
}

.hero-title {
  font-size: 40px;
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 18px;
}

.gold-gradient {
  background: linear-gradient(90deg, #FDE68A, #F59E0B, #D97706);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 40px;
}

.btn-primary {
  padding: 12px 28px;
  background: linear-gradient(135deg, #F59E0B, #D97706);
  color: #0F172A;
  font-weight: 800;
  font-size: 15px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(245, 158, 11, 0.45);
}

.btn-secondary {
  padding: 12px 28px;
  background: rgba(30, 41, 59, 0.7);
  color: var(--text-main);
  font-weight: 700;
  font-size: 15px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  border: 1px solid rgba(148, 163, 184, 0.3);
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background: rgba(51, 65, 85, 0.8);
  border-color: var(--gold-primary);
  color: var(--gold-light);
}

.hero-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 30px;
  background: rgba(18, 24, 38, 0.6);
  border: 1px solid rgba(217, 119, 6, 0.2);
  border-radius: var(--radius-md);
  padding: 16px 30px;
  max-width: 850px;
  margin: 0 auto;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-num {
  font-family: 'Outfit', sans-serif;
  font-size: 24px;
  font-weight: 900;
  color: var(--gold-light);
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
}

.stat-divider {
  width: 1px;
  height: 25px;
  background: rgba(148, 163, 184, 0.2);
}

/* --- 3. 2.5D 实时刻字打样 Studio --- */
.studio-section {
  padding: 60px 24px;
  max-width: 1400px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 35px;
}

.sec-badge {
  font-family: 'Outfit', sans-serif;
  font-size: 12px;
  font-weight: 800;
  color: var(--gold-primary);
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.sec-title {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 10px;
}

.sec-desc {
  font-size: 14px;
  color: var(--text-muted);
}

.studio-container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
}

.studio-canvas-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
}

.canvas-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.canvas-badge {
  padding: 4px 10px;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid var(--border-glow);
  border-radius: 4px;
  font-size: 12px;
  font-weight: 700;
  color: var(--gold-light);
}

.canvas-prod-title {
  font-size: 16px;
  font-weight: 700;
  color: #FFFFFF;
}

.reset-view-btn {
  padding: 4px 10px;
  background: rgba(30, 41, 59, 0.8);
  color: var(--text-muted);
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
}

.canvas-viewport {
  position: relative;
  background: #0F172A;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
}

#engraveCanvas {
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 800;
  display: block;
  cursor: grab;
}

#engraveCanvas:active {
  cursor: grabbing;
}

.canvas-tips {
  padding: 6px;
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
}

/* 底部 8 款产品条 */
.product-strip-wrap {
  margin-top: 14px;
}

.strip-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.strip-items {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 6px;
}

.strip-card {
  flex: 0 0 95px;
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: var(--radius-sm);
  padding: 6px;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s ease;
}

.strip-card.active {
  border-color: var(--gold-primary);
  background: rgba(245, 158, 11, 0.12);
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.3);
}

.strip-card img {
  width: 100%;
  height: 55px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 4px;
}

.strip-card-name {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 右侧控制面板 */
.studio-control-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  box-shadow: var(--shadow-card);
}

.panel-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.group-title {
  font-size: 15px;
  font-weight: 800;
  color: var(--gold-light);
  border-bottom: 1px solid rgba(217, 119, 6, 0.2);
  padding-bottom: 6px;
}

.form-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-item label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

.form-row {
  display: flex;
  gap: 12px;
}

.flex-1 { flex: 1; }

textarea, select, input[type="text"], input[type="number"] {
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: var(--radius-sm);
  color: #FFFFFF;
  padding: 8px 12px;
  font-size: 13px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.25s ease;
}

textarea:focus, select:focus, input:focus {
  border-color: var(--gold-primary);
}

.color-chips {
  display: flex;
  gap: 10px;
}

.color-chip {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px;
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s ease;
}

.color-chip.active {
  border-color: var(--gold-primary);
  background: rgba(245, 158, 11, 0.15);
  color: var(--gold-light);
}

.chip-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.chip-dot.silver { background: #E2E8F0; }
.chip-dot.gold { background: #F59E0B; }
.chip-dot.dark { background: #0F172A; border: 1px solid #475569; }

.upload-box {
  background: rgba(15, 23, 42, 0.6);
  border: 1px dashed rgba(245, 158, 11, 0.4);
  border-radius: var(--radius-sm);
  padding: 12px;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s ease;
}

.upload-box:hover {
  background: rgba(245, 158, 11, 0.05);
  border-color: var(--gold-primary);
}

.upload-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
}

.upload-preview {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.upload-preview img {
  height: 35px;
  object-fit: contain;
}

.clear-logo-btn {
  font-size: 11px;
  color: #EF4444;
  cursor: pointer;
}

/* 容量胶囊网格 */
.capacity-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.cap-capsule {
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: var(--radius-sm);
  padding: 6px 4px;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s ease;
}

.cap-capsule.active {
  border-color: var(--gold-primary);
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(217, 119, 6, 0.3));
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.25);
}

.cap-size {
  font-family: 'Outfit', sans-serif;
  font-size: 14px;
  font-weight: 800;
  color: #FFFFFF;
}

.cap-price {
  font-size: 11px;
  color: var(--gold-light);
}

/* 数量步进器 */
.qty-stepper {
  display: flex;
  gap: 6px;
}

.qty-stepper button {
  padding: 6px 12px;
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: var(--radius-sm);
  color: #FFFFFF;
  font-weight: 700;
  cursor: pointer;
}

.qty-stepper input {
  flex: 1;
  text-align: center;
  font-family: 'Outfit', sans-serif;
  font-size: 15px;
  font-weight: 800;
}

/* 算价结果卡片 */
.pricing-summary-card {
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-sm);
  padding: 14px;
  box-shadow: var(--shadow-gold);
}

.summary-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.summary-label {
  font-size: 13px;
  font-weight: 700;
  color: #FFFFFF;
}

.tier-badge {
  padding: 3px 8px;
  background: rgba(16, 185, 129, 0.2);
  border: 1px solid var(--green-accent);
  border-radius: 4px;
  font-size: 11px;
  font-weight: 800;
  color: var(--green-accent);
}

.price-row {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.total-highlight {
  font-size: 16px;
  font-weight: 800;
  color: #FFFFFF;
  border-top: 1px dashed rgba(148, 163, 184, 0.2);
  padding-top: 6px;
  margin-top: 6px;
}

.final-total {
  font-family: 'Outfit', sans-serif;
  font-size: 22px;
  color: var(--gold-light);
}

.save-tip {
  font-size: 11px;
  color: var(--gold-light);
  margin-top: 6px;
}

.action-btn-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.btn-save-draft {
  padding: 10px;
  background: rgba(30, 41, 59, 0.9);
  color: var(--cyan-accent);
  border: 1px solid var(--cyan-accent);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-save-draft:hover {
  background: rgba(6, 182, 212, 0.2);
}

.btn-download-sample {
  padding: 10px;
  background: rgba(30, 41, 59, 0.9);
  color: #FFFFFF;
  border: 1px solid rgba(148, 163, 184, 0.4);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-download-sample:hover {
  border-color: var(--gold-primary);
  color: var(--gold-light);
}

.btn-generate-quote {
  padding: 12px;
  background: linear-gradient(135deg, #F59E0B, #D97706);
  color: #0F172A;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
  transition: all 0.3s ease;
}

.btn-generate-quote:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.45);
}

/* --- 4. 01~08 产品矩阵卡片 --- */
.matrix-section, .pricing-section, .compliance-section {
  padding: 60px 24px;
  max-width: 1400px;
  margin: 0 auto;
}

.matrix-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.matrix-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.3s ease;
}

.matrix-card:hover {
  transform: translateY(-4px);
  border-color: var(--gold-primary);
  box-shadow: 0 10px 30px rgba(245, 158, 11, 0.15);
}

.card-tag {
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 3px 8px;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid var(--border-glow);
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  color: var(--gold-light);
}

.card-img-wrap {
  width: 100%;
  height: 160px;
  background: #0F172A;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 14px;
}

.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.matrix-card:hover .card-img-wrap img {
  transform: scale(1.05);
}

.card-num {
  font-family: 'Outfit', sans-serif;
  font-size: 12px;
  font-weight: 800;
  color: var(--gold-primary);
  margin-bottom: 4px;
}

.card-title {
  font-size: 15px;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.card-features {
  list-style: none;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 16px;
  flex: 1;
}

.card-btn {
  width: 100%;
  padding: 8px;
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--gold-light);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s ease;
}

.card-btn:hover {
  background: var(--gold-primary);
  color: var(--text-dark);
}

/* --- 5. 官方阶梯报价表格 --- */
.table-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow-x: auto;
}

.cyber-table {
  width: 100%;
  border-collapse: collapse;
  text-align: center;
  font-size: 14px;
}

.cyber-table th {
  background: rgba(15, 23, 42, 0.95);
  color: var(--gold-light);
  padding: 14px;
  font-weight: 800;
  border-bottom: 1px solid var(--border-glow);
}

.cyber-table td {
  padding: 12px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.1);
  color: var(--text-main);
}

.cyber-table tr:hover td {
  background: rgba(245, 158, 11, 0.05);
}

.gold-text {
  color: var(--gold-primary);
}

/* --- 6. 品质风控 --- */
.compliance-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.comp-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
}

.comp-icon {
  font-size: 32px;
  margin-bottom: 10px;
}

.comp-title {
  font-size: 16px;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 8px;
}

.comp-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --- 7. Footer --- */
.cyber-footer {
  border-top: 1px solid var(--border-color);
  background: rgba(11, 15, 25, 0.95);
  padding: 40px 24px 20px;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.footer-brand .brand-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--gold-light);
  margin-bottom: 6px;
}

.footer-brand .brand-desc {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-info {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.8;
  text-align: right;
}

.footer-info a {
  color: var(--gold-primary);
  text-decoration: none;
}

.footer-copyright {
  text-align: center;
  font-size: 11px;
  color: #64748B;
  border-top: 1px solid rgba(148, 163, 184, 0.1);
  padding-top: 16px;
}

/* --- 8. Modals (报价单 / 登录认证 / 草稿箱 / 订单) --- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-card {
  background: #FFFFFF;
  color: var(--text-dark);
  border-radius: var(--radius-md);
  max-width: 850px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  overflow: hidden;
}

.modal-small {
  max-width: 480px;
}

.modal-header {
  background: #0F172A;
  color: #FFFFFF;
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 16px;
  font-weight: 800;
}

.modal-close {
  background: none;
  border: none;
  color: #94A3B8;
  font-size: 20px;
  cursor: pointer;
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
}

.sheet-top {
  text-align: center;
  border-bottom: 2px solid #0F172A;
  padding-bottom: 12px;
  margin-bottom: 16px;
}

.sheet-title {
  font-size: 20px;
  font-weight: 900;
  color: #0F172A;
}

.sheet-meta {
  display: flex;
  justify-content: center;
  gap: 20px;
  font-size: 12px;
  color: #475569;
  margin-top: 6px;
}

.sheet-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 20px;
  align-items: center;
}

.sheet-preview {
  text-align: center;
}

.preview-tag {
  font-size: 11px;
  font-weight: 700;
  color: #475569;
  margin-bottom: 6px;
}

.sheet-preview img {
  width: 100%;
  border-radius: 8px;
  border: 1px solid #E2E8F0;
  box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

.sheet-table {
  width: 100%;
  font-size: 13px;
  border-collapse: collapse;
}

.sheet-table td {
  padding: 8px;
  border-bottom: 1px solid #E2E8F0;
}

.sheet-total {
  font-size: 18px;
  color: #B45309;
}

.sheet-stamp-wrap {
  display: flex;
  justify-content: flex-end;
  margin-top: 10px;
}

.stamp-circle {
  width: 110px;
  height: 110px;
  border: 2px dashed #DC2626;
  border-radius: 50%;
  color: #DC2626;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 800;
  transform: rotate(-12deg);
  opacity: 0.85;
}

.modal-footer {
  background: #F8FAFC;
  border-top: 1px solid #E2E8F0;
  padding: 14px 20px;
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

.btn-cancel {
  padding: 8px 16px;
  background: #E2E8F0;
  color: #475569;
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 700;
  cursor: pointer;
}

.btn-submit-order {
  padding: 8px 20px;
  background: #0F172A;
  color: #FDE68A;
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 800;
  cursor: pointer;
}

/* 登录认证与草稿箱 */
.auth-box {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.full-width {
  width: 100%;
}

.auth-demo-hint {
  font-size: 11px;
  color: #64748B;
  background: #F1F5F9;
  padding: 8px;
  border-radius: 6px;
}

.drafts-list, .orders-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.draft-item, .order-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border: 1px solid #E2E8F0;
  border-radius: 8px;
  background: #F8FAFC;
  transition: all 0.2s ease;
}

.draft-item:hover, .order-item:hover {
  border-color: #0F172A;
  background: #FFFFFF;
}

.draft-info, .order-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.draft-title, .order-title {
  font-size: 14px;
  font-weight: 800;
  color: #0F172A;
}

.draft-meta, .order-meta {
  font-size: 12px;
  color: #64748B;
}

.btn-load-draft {
  padding: 6px 12px;
  background: #0F172A;
  color: #FFFFFF;
  border: none;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

/* 响应式 */
@media (max-width: 1024px) {
  .studio-container { grid-template-columns: 1fr; }
  .matrix-grid, .compliance-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { flex-wrap: wrap; }
}

@media (max-width: 640px) {
  .matrix-grid, .compliance-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}