/* ============================================
   OPC 门户页面 - 样式
   ============================================ */

:root {
  --primary: #6366f1;
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  --primary-50: #eef2ff;
  --primary-100: #e0e7ff;

  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;

  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;

  --bg: #ffffff;
  --text: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border: #e2e8f0;

  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.05);
  --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.05);
  --shadow-xl: 0 25px 50px -12px rgba(0,0,0,0.15);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--gray-50); }
::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--gray-400); }

/* ---------- 容器 ---------- */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================
   导航栏
   ============================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: all 0.3s ease;
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(12px);
}

.nav.scrolled {
  padding: 10px 0;
  background: rgba(255,255,255,0.95);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--gray-900);
}

.nav-logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--primary) 0%, #8b5cf6 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 18px;
  box-shadow: 0 4px 12px rgba(99,102,241,0.3);
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--gray-600);
  transition: color 0.2s;
  position: relative;
}

.nav-link:hover { color: var(--primary); }

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--primary);
  border-radius: 1px;
  transition: width 0.2s;
}

.nav-link:hover::after { width: 100%; }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--gray-700);
}

.nav-toggle svg { width: 24px; height: 24px; }

/* ============================================
   按钮
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  transition: all 0.2s;
  white-space: nowrap;
  border: 1.5px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-dark); box-shadow: 0 6px 20px rgba(99,102,241,0.35); transform: translateY(-1px); }

.btn-secondary {
  background: #fff;
  color: var(--gray-700);
  border-color: var(--border);
}
.btn-secondary:hover { background: var(--gray-50); border-color: var(--gray-300); }

.btn-ghost {
  color: var(--gray-600);
  padding: 8px 14px;
}
.btn-ghost:hover { background: var(--gray-100); color: var(--primary); }

.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-block { width: 100%; }

/* ============================================
   Hero
   ============================================ */
.hero {
  position: relative;
  padding: 140px 0 80px;
  overflow: hidden;
  background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99,102,241,0.12), transparent),
    radial-gradient(ellipse 60% 50% at 80% 50%, rgba(139,92,246,0.08), transparent),
    radial-gradient(ellipse 60% 50% at 20% 80%, rgba(236,72,153,0.06), transparent);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: var(--primary-50);
  border: 1px solid var(--primary-100);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  color: var(--primary-dark);
  margin-bottom: 24px;
}

.hero-title {
  font-size: 56px;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--gray-900);
  margin-bottom: 20px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, #8b5cf6 50%, #ec4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding: 24px 40px;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}

.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.hero-stat-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--gray-900);
  letter-spacing: -0.02em;
}

.hero-stat-label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

.hero-stat-divider {
  width: 1px;
  height: 32px;
  background: var(--border);
}

/* ============================================
   Section 通用
   ============================================ */
.section {
  padding: 80px 0;
}

.section-gray { background: var(--gray-50); }

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--primary-50);
  color: var(--primary);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 12px;
}

.section-title {
  font-size: 36px;
  font-weight: 800;
  color: var(--gray-900);
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
}

/* ============================================
   服务卡片
   ============================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid var(--border);
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.service-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), #8b5cf6);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}

.service-card:hover::before { transform: scaleX(1); }

.service-card-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 24px;
}

.service-card-icon.purple { background: var(--primary-100); color: var(--primary); }
.service-card-icon.blue { background: #dbeafe; color: var(--info); }
.service-card-icon.green { background: #d1fae5; color: var(--success); }
.service-card-icon.amber { background: #fef3c7; color: var(--warning); }
.service-card-icon.pink { background: #fce7f3; color: #ec4899; }
.service-card-icon.teal { background: #ccfbf1; color: #14b8a6; }

.service-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 6px;
}

.service-card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.5;
}

.service-card-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.service-card-price-val {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
}

.service-card-price-unit {
  font-size: 13px;
  color: var(--text-muted);
}

/* ============================================
   作品案例
   ============================================ */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.portfolio-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all 0.3s;
  cursor: pointer;
}

.portfolio-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--gray-300);
}

.portfolio-card-banner {
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  position: relative;
}

.portfolio-card-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.1));
}

.portfolio-card-body {
  padding: 20px;
}

.portfolio-card-tag {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 8px;
}

.portfolio-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 4px;
}

.portfolio-card-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 12px;
}

.portfolio-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}

.portfolio-card-client {
  display: flex;
  align-items: center;
  gap: 6px;
}

.portfolio-card-avatar {
  width: 24px; height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
}

/* ============================================
   表单
   ============================================ */
.form-group { margin-bottom: 16px; }

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.form-label .required { color: var(--danger); }

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 15px;
  color: var(--text);
  background: #fff;
  transition: all 0.2s;
  outline: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-50);
}

.form-input.error, .form-select.error { border-color: var(--danger); }

.form-textarea { resize: vertical; min-height: 100px; }

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ---------- 下单表单 ---------- */
.order-form-wrapper {
  max-width: 640px;
  margin: 0 auto;
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

.form-footer { margin-top: 8px; }

.form-tip {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 12px;
}

/* ---------- 订单查询 ---------- */
.track-wrapper {
  max-width: 640px;
  margin: 0 auto;
}

.track-form { margin-bottom: 24px; }

.track-inputs {
  display: flex;
  gap: 12px;
}

.track-inputs .form-input { flex: 1; }
.track-inputs .btn { flex-shrink: 0; }

.track-result {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
}

.track-result-empty {
  text-align: center;
  padding: 40px 24px;
  color: var(--text-muted);
  font-size: 14px;
}

.track-result-card {
  padding: 24px;
}

.track-result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.track-result-id {
  font-size: 20px;
  font-weight: 800;
  color: var(--gray-900);
}

.track-result-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.track-result-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.track-result-label { font-size: 12px; color: var(--text-muted); font-weight: 500; }
.track-result-value { font-size: 15px; color: var(--gray-900); font-weight: 500; }

.track-progress {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.track-progress-bar {
  display: flex;
  justify-content: space-between;
  position: relative;
  margin-bottom: 8px;
}

.track-progress-bar::before {
  content: '';
  position: absolute;
  top: 12px; left: 12px; right: 12px;
  height: 2px;
  background: var(--gray-200);
}

.track-progress-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  position: relative;
  z-index: 1;
}

.track-progress-dot {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--gray-200);
  color: var(--gray-400);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  border: 3px solid #fff;
  transition: all 0.3s;
}

.track-progress-step.active .track-progress-dot {
  background: var(--primary);
  color: #fff;
}

.track-progress-step.done .track-progress-dot {
  background: var(--success);
  color: #fff;
}

.track-progress-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

.track-progress-step.active .track-progress-label { color: var(--primary); font-weight: 600; }
.track-progress-step.done .track-progress-label { color: var(--success); }

/* ============================================
   关于
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  align-items: start;
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 32px;
}

.about-feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.about-feature-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--success);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.about-feature-icon svg { width: 20px; height: 20px; }

.about-feature h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 4px;
}

.about-feature p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.about-card {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.about-card-glow {
  position: absolute;
  top: -60px; left: 50%;
  transform: translateX(-50%);
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(99,102,241,0.1), transparent);
  border-radius: 50%;
}

.about-card-content { position: relative; z-index: 1; }

.about-avatar {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  margin: 0 auto 16px;
  box-shadow: 0 8px 24px rgba(239,68,68,0.2);
}

.about-card h3 {
  font-size: 22px;
  font-weight: 800;
  color: var(--gray-900);
}

.about-role {
  font-size: 14px;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 12px;
}

.about-bio {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 24px;
}

.tag {
  padding: 4px 12px;
  background: var(--gray-100);
  border-radius: 16px;
  font-size: 12px;
  font-weight: 500;
  color: var(--gray-600);
}

.about-contact {
  padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.about-contact-item {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  font-size: 14px;
  color: var(--text-secondary);
}

.about-contact-item svg { color: var(--primary); }

/* ============================================
   页脚
   ============================================ */
.footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding: 56px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .nav-logo { color: #fff; margin-bottom: 12px; }

.footer-desc {
  font-size: 14px;
  line-height: 1.6;
  max-width: 300px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--gray-400);
  margin-bottom: 10px;
  transition: color 0.2s;
}

.footer-col a:hover { color: var(--primary-light); }

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  font-size: 13px;
  color: var(--gray-500);
}

/* ============================================
   Badge
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
}

.badge-success { background: #d1fae5; color: #065f46; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-info { background: #dbeafe; color: #1e40af; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-gray { background: var(--gray-100); color: var(--gray-600); }

.badge-dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* ============================================
   Toast
   ============================================ */
#toast-root {
  position: fixed;
  top: 80px; right: 24px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-lg);
  border-left: 3px solid var(--gray-400);
  min-width: 300px;
  max-width: 420px;
  animation: toastSlide 0.3s ease;
}

@keyframes toastSlide {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }
.toast.info { border-left-color: var(--info); }

.toast-icon { width: 20px; height: 20px; flex-shrink: 0; }
.toast.success .toast-icon { color: var(--success); }
.toast.error .toast-icon { color: var(--danger); }
.toast.warning .toast-icon { color: var(--warning); }
.toast.info .toast-icon { color: var(--info); }

.toast-message { font-size: 14px; color: var(--gray-700); flex: 1; }

/* ============================================
   骨架屏 / 加载
   ============================================ */
.loading-cards {
  display: contents;
}

.skeleton-card {
  background: var(--gray-100);
  border-radius: var(--radius-lg);
  height: 200px;
  position: relative;
  overflow: hidden;
}

.skeleton-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.6), transparent);
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ---------- 成功结果 ---------- */
.success-result {
  text-align: center;
  padding: 32px 24px;
}

.success-icon {
  width: 64px; height: 64px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--success);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.success-icon svg { width: 32px; height: 32px; }

.success-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 8px;
}

.success-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.success-order-id {
  display: inline-block;
  padding: 8px 20px;
  background: var(--primary-50);
  border: 1px dashed var(--primary);
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
}

/* ============================================
   响应式
   ============================================ */
@media (max-width: 900px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 42px; }
  .section-title { font-size: 28px; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-actions .btn-ghost { display: none; }

  .hero { padding: 120px 0 60px; }
  .hero-title { font-size: 36px; }
  .hero-desc { font-size: 16px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .hero-stats { flex-wrap: wrap; gap: 16px; padding: 20px; }
  .hero-stat-divider { display: none; }

  .section { padding: 56px 0; }
  .section-title { font-size: 24px; }

  .services-grid { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }

  .form-row-2 { grid-template-columns: 1fr; }
  .order-form-wrapper { padding: 24px; }

  .track-inputs { flex-direction: column; }
  .track-result-grid { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; }
  .hero-stat-num { font-size: 24px; }
}

/* ============================================
   页面过渡 & 加载
   ============================================ */
#app { min-height: 60vh; }

.page-enter {
  animation: pageEnter 0.3s ease;
}

@keyframes pageEnter {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
}

.spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================
   面包屑 & 返回
   ============================================ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.breadcrumb a { color: var(--text-secondary); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb-sep { color: var(--gray-300); }
.breadcrumb-current { color: var(--gray-700); font-weight: 500; }

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  transition: color 0.2s;
}

.back-btn:hover { color: var(--primary); }
.back-btn svg { width: 18px; height: 18px; }

/* ============================================
   服务详情页
   ============================================ */
.detail-hero {
  background: linear-gradient(135deg, var(--primary-50) 0%, #fff 100%);
  padding: 48px 0;
  border-bottom: 1px solid var(--border);
}

.detail-hero-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: center;
}

.detail-hero-icon {
  width: 64px; height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin-bottom: 16px;
}

.detail-hero-title {
  font-size: 32px;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.detail-hero-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

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

.detail-feature-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-600);
}

.detail-price-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  text-align: center;
}

.detail-price-label { font-size: 14px; color: var(--text-muted); margin-bottom: 8px; }

.detail-price-val {
  font-size: 40px;
  font-weight: 900;
  color: var(--primary);
  letter-spacing: -0.03em;
}

.detail-price-unit { font-size: 14px; color: var(--text-muted); }

.detail-price-features {
  margin: 24px 0;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.detail-price-feature {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--gray-600);
}

.detail-price-feature svg { width: 16px; height: 16px; color: var(--success); flex-shrink: 0; }

/* ============================================
   案例详情页
   ============================================ */
.case-banner {
  height: 240px;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 72px;
  margin-bottom: 32px;
  position: relative;
  overflow: hidden;
}

.case-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.15));
}

.case-info-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}

.case-info-main h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 12px;
}

.case-info-main p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.case-info-side {
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.case-info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.case-info-label { font-size: 12px; color: var(--text-muted); font-weight: 500; }
.case-info-value { font-size: 15px; color: var(--gray-900); font-weight: 600; }

/* ============================================
   工作流程时间线
   ============================================ */
.process-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 640px;
  margin: 0 auto;
}

.process-step {
  display: flex;
  gap: 20px;
  position: relative;
  padding-bottom: 32px;
}

.process-step:last-child { padding-bottom: 0; }

.process-step:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 23px; top: 48px;
  width: 2px; height: calc(100% - 48px);
  background: linear-gradient(180deg, var(--primary-100), var(--border));
}

.process-step-num {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #8b5cf6);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(99,102,241,0.3);
  z-index: 1;
}

.process-step-content h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 4px;
  padding-top: 4px;
}

.process-step-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ============================================
   FAQ 手风琴
   ============================================ */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s;
}

.faq-item:hover { border-color: var(--gray-300); }
.faq-item.open { border-color: var(--primary); }

.faq-question {
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--gray-900);
  transition: background 0.2s;
}

.faq-question:hover { background: var(--gray-50); }

.faq-toggle {
  width: 24px; height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: transform 0.2s;
  flex-shrink: 0;
}

.faq-item.open .faq-toggle { transform: rotate(45deg); color: var(--primary); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 24px;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 24px 18px;
}

.faq-answer p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   多步表单
   ============================================ */
.step-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: 32px;
}

.step-dot {
  display: flex;
  align-items: center;
  gap: 8px;
}

.step-dot-circle {
  width: 32px; height: 32px;
  border-radius: 50%;
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-muted);
  transition: all 0.3s;
}

.step-dot.active .step-dot-circle {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
}

.step-dot.done .step-dot-circle {
  border-color: var(--success);
  background: var(--success);
  color: #fff;
}

.step-dot-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}

.step-dot.active .step-dot-label { color: var(--primary); font-weight: 600; }

.step-line {
  width: 48px; height: 2px;
  background: var(--border);
  margin: 0 8px;
  transition: background 0.3s;
}

.step-line.done { background: var(--success); }

/* 服务选择卡片 */
.service-pick-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.service-pick {
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}

.service-pick:hover { border-color: var(--primary-light); background: var(--primary-50); }

.service-pick.selected {
  border-color: var(--primary);
  background: var(--primary-50);
}

.service-pick.selected::after {
  content: '✓';
  position: absolute;
  top: 12px; right: 12px;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
}

.service-pick-icon { font-size: 28px; margin-bottom: 8px; }
.service-pick-name { font-size: 16px; font-weight: 700; color: var(--gray-900); margin-bottom: 4px; }
.service-pick-price { font-size: 14px; color: var(--primary); font-weight: 600; }
.service-pick-desc { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

.step-actions {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 24px;
}

/* 相关项目 */
.related-section {
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 24px;
}

/* 筛选标签 */
.filter-tabs {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.filter-tab {
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  background: #fff;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.2s;
}

.filter-tab:hover { border-color: var(--primary-light); color: var(--primary); }
.filter-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* 搜索框 */
.search-box {
  position: relative;
  max-width: 400px;
  margin: 0 auto 32px;
}

.search-box input {
  width: 100%;
  padding: 12px 16px 12px 44px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  outline: none;
  transition: all 0.2s;
}

.search-box input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-50); }

.search-box svg {
  position: absolute;
  left: 14px; top: 50%;
  transform: translateY(-50%);
  width: 20px; height: 20px;
  color: var(--text-muted);
}

/* CTA 区域 */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, #8b5cf6 100%);
  border-radius: var(--radius-xl);
  padding: 48px;
  text-align: center;
  color: #fff;
  margin-top: 64px;
}

.cta-section h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 12px;
}

.cta-section p {
  font-size: 16px;
  opacity: 0.9;
  margin-bottom: 24px;
}

.cta-section .btn-primary {
  background: #fff;
  color: var(--primary);
}

.cta-section .btn-primary:hover { background: var(--gray-50); box-shadow: 0 6px 20px rgba(0,0,0,0.15); }

.cta-section .btn-secondary {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.4);
}

.cta-section .btn-secondary:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.6); }

/* 空状态 */
.empty-state {
  text-align: center;
  padding: 64px 24px;
  color: var(--text-muted);
}

.empty-state-icon { font-size: 48px; margin-bottom: 16px; opacity: 0.5; }
.empty-state-title { font-size: 18px; font-weight: 600; color: var(--text-secondary); margin-bottom: 4px; }
.empty-state-desc { font-size: 14px; }

/* 响应式补充 */
@media (max-width: 768px) {
  .detail-hero-grid { grid-template-columns: 1fr; }
  .case-info-grid { grid-template-columns: 1fr; }
  .service-pick-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .cta-section { padding: 32px 24px; }
  .cta-section h2 { font-size: 22px; }
  .step-dot-label { display: none; }
  .step-line { width: 24px; }
}

/* ============================================
   接单方入驻 / 接单公司 / 订单大厅 样式
   ============================================ */

/* 表单卡片 */
.form-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

/* 接单公司卡片 */
.provider-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all .2s;
}
.provider-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* 步骤指示器（入驻申请用） */
.step-indicator {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
}
.step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  position: relative;
}
.step-item:not(:last-child)::after {
  content: '';
  width: 60px;
  height: 2px;
  background: var(--border);
  margin: 0 12px;
  position: absolute;
  top: 16px;
  left: 100%;
}
.step-item.done:not(:last-child)::after { background: var(--success); }
.step-circle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  background: var(--gray-50);
  color: var(--text-muted);
  border: 2px solid var(--border);
  transition: all .2s;
  z-index: 1;
}
.step-circle svg { width: 16px; height: 16px; }
.step-item.active .step-circle {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.step-item.done .step-circle {
  background: var(--success);
  color: #fff;
  border-color: var(--success);
}
.step-label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
}
.step-item.active .step-label { color: var(--primary); font-weight: 600; }
.step-item.done .step-label { color: var(--text-secondary); }

/* 上传区域 */
.upload-zone {
  flex: 1;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: all .2s;
}
.upload-zone:hover {
  border-color: var(--primary);
  background: var(--primary-50);
}
.upload-zone.uploaded {
  border-color: var(--success);
  background: var(--green-50);
}

/* 步骤操作按钮 */
.step-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

/* 保证金提示 */
.deposit-notice {
  background: var(--amber-50);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 20px;
  border: 1px solid var(--amber-border);
}

/* 认证标识 */
.verify-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

/* 响应式补充 */
@media (max-width: 768px) {
  .form-card { padding: 20px; }
  .step-indicator { gap: 0; }
  .step-item:not(:last-child)::after { width: 20px; margin: 0 4px; }
  .step-label { display: none; }
}