/* ============================================
   标大师AI编标工具 - AI 智能投标编标平台
   设计风格：简约大气 · 专业稳重
   ============================================ */

/* ===== Reset & Variables ===== */
:root {
  --color-primary: #103C7A;
  --color-primary-dark: #0A2A57;
  --color-primary-light: #2A6BC4;
  --color-accent: #2E7BE0;
  --color-accent-soft: #5A9BF0;
  --color-teal: #00B39F;
  --color-warm: #F5A623;
  --color-bg: #FFFFFF;
  --color-bg-soft: #F4F8FD;
  --color-bg-card: #FFFFFF;
  --color-text: #16283D;
  --color-text-medium: #566A80;
  --color-text-light: #8A9BB0;
  --color-border: #E1E8F0;
  --color-border-light: #EDF2F8;
  --shadow-sm: 0 2px 8px rgba(16, 60, 122, 0.06);
  --shadow-md: 0 4px 20px rgba(16, 60, 122, 0.08);
  --shadow-lg: 0 12px 40px rgba(16, 60, 122, 0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --max-width: 1200px;
  --header-height: 72px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }

/* ===== Layout ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }
.bg-soft { background: var(--color-bg-soft); }
.text-center { text-align: center; }

/* ===== Typography ===== */
.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--color-text-medium);
  max-width: 660px;
  margin: 0 auto 56px;
  line-height: 1.8;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header .section-subtitle { margin-bottom: 0; }

.eyebrow {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 12px;
}

/* ===== Header / Navigation ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  z-index: 1000;
  transition: var(--transition);
}

.site-header.scrolled { box-shadow: var(--shadow-sm); }

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}

.logo-mark {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: -1px;
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-text .name {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-text);
  white-space: nowrap;
}

.logo-text .en {
  font-size: 0.6875rem;
  color: var(--color-text-light);
  letter-spacing: 0.5px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-menu a {
  position: relative;
  padding: 8px 18px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-medium);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-menu a:hover {
  color: var(--color-primary);
  background: var(--color-bg-soft);
}

.nav-menu a.active {
  color: var(--color-primary);
  font-weight: 600;
}

.nav-menu a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
}

.nav-cta {
  margin-left: 12px;
  padding: 10px 24px;
  background: var(--color-primary);
  color: white !important;
  border-radius: var(--radius-sm);
  font-weight: 600 !important;
  font-size: 0.875rem !important;
  transition: var(--transition);
}

.nav-cta:hover {
  background: var(--color-primary-dark) !important;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 36px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary { background: var(--color-primary); color: white; }
.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-accent { background: var(--color-accent); color: white; }
.btn-accent:hover {
  background: #1E68CC;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-border);
}
.btn-outline:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-soft);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.14);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.35);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.24); }

.btn-lg { padding: 16px 40px; font-size: 1rem; }
.btn-sm { padding: 10px 22px; font-size: 0.875rem; }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 660px;
  display: flex;
  align-items: center;
  padding: 128px 0 88px;
  background: linear-gradient(160deg, #F4F8FD 0%, #E7F0FA 50%, #DAE8F8 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(46, 123, 224, 0.14) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -150px; left: -150px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(0, 179, 159, 0.09) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 60px;
  align-items: center;
}

/* 单栏 Hero 收紧高度与内边距 */
.hero-solo {
  min-height: 0;
  padding: 132px 0 84px;
}

/* 单栏居中 Hero（右侧数据卡片已移除） */
.hero-content-solo {
  grid-template-columns: 1fr;
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  gap: 0;
}

.hero-content-solo .hero-badge { margin-bottom: 24px; }

.hero-content-solo .hero-desc {
  margin-left: auto;
  margin-right: auto;
  max-width: 620px;
}

.hero-content-solo .hero-actions { justify-content: center; }

.hero-content-solo .hero-points { justify-content: center; }

/* 防止网格子项被内容最小宽度撑破（移动端关键） */
.hero-content > *,
.product-hero > *,
.rights-grid > *,
.quote-layout > *,
.features-grid > *,
.security-grid > * {
  min-width: 0;
}

.hero-text .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(16, 60, 122, 0.08);
  color: var(--color-primary);
  border-radius: 100px;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-badge .dot {
  width: 8px; height: 8px;
  background: var(--color-teal);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero-title {
  font-size: 3.125rem;
  font-weight: 800;
  line-height: 1.22;
  color: var(--color-text);
  margin-bottom: 24px;
  letter-spacing: -1.5px;
}

.hero-title .highlight {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.0625rem;
  color: var(--color-text-medium);
  line-height: 1.85;
  margin-bottom: 32px;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
}

.hero-points span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  color: var(--color-text-medium);
}

.hero-points span::before {
  content: '✓';
  color: var(--color-teal);
  font-weight: 700;
  font-size: 0.8125rem;
}
/* ===== Feature Grid ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  transition: var(--transition);
}

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

.feature-card .icon-box {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.icon-bg-blue { background: rgba(16, 60, 122, 0.1); }
.icon-bg-cyan { background: rgba(46, 123, 224, 0.1); }
.icon-bg-amber { background: rgba(245, 166, 35, 0.12); }
.icon-bg-green { background: rgba(0, 179, 159, 0.12); }
.icon-bg-purple { background: rgba(139, 92, 246, 0.1); }
.icon-bg-rose { background: rgba(229, 103, 60, 0.1); }

.feature-card h3 {
  font-size: 1.1875rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-text);
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--color-text-medium);
  line-height: 1.7;
  margin-bottom: 14px;
}

.feature-card .feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--color-text-medium);
  padding: 3px 0;
}

.feature-card .feature-list li::before {
  content: '·';
  color: var(--color-accent);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.4;
}

/* ===== Stats ===== */
.stats-section {
  background: var(--color-primary);
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60' viewBox='0 0 60 60'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.stats-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item .stat-number {
  font-size: 2.75rem;
  font-weight: 800;
  color: white;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-item .stat-number .unit {
  font-size: 1.25rem;
  font-weight: 600;
  margin-left: 4px;
  opacity: 0.85;
}

.stat-item .stat-label {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.72);
}

/* ===== Product Preview ===== */
.product-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.product-hero .product-info h2 {
  font-size: 1.875rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.product-hero .product-info p {
  font-size: 1rem;
  color: var(--color-text-medium);
  line-height: 1.9;
  margin-bottom: 24px;
}

.product-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.product-tag {
  padding: 6px 16px;
  background: rgba(16, 60, 122, 0.08);
  color: var(--color-primary);
  border-radius: 100px;
  font-size: 0.8125rem;
  font-weight: 600;
}

.product-mockup {
  background: linear-gradient(160deg, #F0F6FD 0%, #DCE8F6 100%);
  border-radius: var(--radius-lg);
  padding: 36px;
  position: relative;
  min-height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mockup-window {
  width: 100%;
  max-width: 420px;
  background: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.mockup-window .window-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border-light);
  background: var(--color-bg-soft);
}

.window-bar .dot-r { width: 10px; height: 10px; border-radius: 50%; background: #FF5F57; }
.window-bar .dot-y { width: 10px; height: 10px; border-radius: 50%; background: #FFBD2E; }
.window-bar .dot-g { width: 10px; height: 10px; border-radius: 50%; background: #28C840; }

.window-bar .window-title {
  margin-left: 10px;
  font-size: 0.75rem;
  color: var(--color-text-light);
}

.mockup-window .window-body { padding: 22px; }

.typing-line {
  height: 10px;
  background: var(--color-border);
  border-radius: 4px;
  margin-bottom: 10px;
}
.typing-line.short { width: 60%; }
.typing-line.medium { width: 80%; }
.typing-line.long { width: 100%; }
.typing-line.accent {
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  animation: typing 2s ease-in-out infinite;
}

@keyframes typing {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* ===== Workflow ===== */
.workflow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  position: relative;
}

.workflow::before {
  content: '';
  position: absolute;
  top: 34px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-teal));
  opacity: 0.25;
}

.workflow-step {
  position: relative;
  text-align: center;
  padding: 0 6px;
}

.workflow-step .step-num {
  width: 68px; height: 68px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: white;
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  position: relative;
  z-index: 1;
  transition: var(--transition);
}

.workflow-step:hover .step-num {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.workflow-step .step-index {
  position: absolute;
  top: -4px; right: -4px;
  width: 24px; height: 24px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid white;
}

.workflow-step h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.workflow-step p {
  font-size: 0.8125rem;
  color: var(--color-text-medium);
  line-height: 1.6;
}

/* ===== Security Grid ===== */
.security-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.security-item {
  background: white;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 26px 24px;
  transition: var(--transition);
}

.security-item:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
}

.security-item .si-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(16, 60, 122, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 14px;
}

.security-item h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.security-item p {
  font-size: 0.875rem;
  color: var(--color-text-medium);
  line-height: 1.65;
}

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  padding: 144px 0 72px;
  background: linear-gradient(160deg, #F4F8FD 0%, #E7F0FA 100%);
  text-align: center;
  overflow: hidden;
}

.page-banner::before {
  content: '';
  position: absolute;
  top: -160px; right: -120px;
  width: 480px; height: 480px;
  background: radial-gradient(circle, rgba(46, 123, 224, 0.12) 0%, transparent 70%);
  border-radius: 50%;
}

.page-banner h1 {
  position: relative;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.page-banner .banner-sub {
  position: relative;
  font-size: 1.0625rem;
  color: var(--color-text-medium);
  max-width: 620px;
  margin: 0 auto 20px;
  line-height: 1.8;
}

.page-banner .breadcrumb {
  position: relative;
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.page-banner .breadcrumb a:hover { color: var(--color-primary); }
.page-banner .breadcrumb .sep { margin: 0 8px; }

/* 授权代理商身份标识 */
.agent-badge {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 18px;
  padding: 7px 18px;
  background: rgba(0, 179, 159, 0.1);
  border: 1px solid rgba(0, 179, 159, 0.28);
  color: #00796B;
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 700;
}

/* ===== Compare Table ===== */
.table-hint {
  display: none;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-bottom: 12px;
}

.table-scroll {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  background: white;
}

table.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 780px;
}

table.compare-table th,
table.compare-table td {
  padding: 15px 18px;
  text-align: center;
  font-size: 0.875rem;
  border-bottom: 1px solid var(--color-border-light);
}

table.compare-table thead th {
  background: var(--color-bg-soft);
  font-weight: 700;
  color: var(--color-text);
  font-size: 0.9375rem;
  white-space: nowrap;
}

table.compare-table thead th:first-child { text-align: left; }

table.compare-table tbody td:first-child {
  text-align: left;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
}

table.compare-table tbody td { color: var(--color-text-medium); }

table.compare-table tbody tr:last-child td { border-bottom: none; }
table.compare-table tbody tr:hover td { background: #FAFCFE; }

table.compare-table .yes { color: var(--color-teal); font-weight: 700; }
table.compare-table .no { color: var(--color-text-light); }

table.compare-table .group-row td {
  background: rgba(16, 60, 122, 0.04);
  font-weight: 700;
  color: var(--color-primary);
  font-size: 0.8125rem;
  letter-spacing: 0.5px;
  text-align: left;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: white;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover { border-color: var(--color-primary-light); }

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  user-select: none;
}

.faq-question .faq-mark {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--color-bg-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: var(--transition);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer p {
  padding: 0 24px 22px;
  font-size: 0.9375rem;
  color: var(--color-text-medium);
  line-height: 1.85;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  text-align: center;
  padding: 96px 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(46, 123, 224, 0.22) 0%, transparent 70%);
}

.cta-section .container { position: relative; z-index: 1; }

.cta-section h2 {
  font-size: 2.25rem;
  font-weight: 700;
  color: white;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.cta-section p {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 36px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-section .btn-white { background: white; color: var(--color-primary); }
.cta-section .btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* ===== Footer ===== */
.site-footer {
  background: #0E1A2B;
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text .name { color: white; }
.footer-brand .logo-text .en { color: rgba(255, 255, 255, 0.5); }

.footer-brand .footer-desc {
  font-size: 0.875rem;
  line-height: 1.8;
  margin-bottom: 20px;
  max-width: 340px;
}

.footer-social { display: flex; gap: 12px; }

.footer-social a {
  width: 40px; height: 40px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  transition: var(--transition);
}

.footer-social a:hover { background: var(--color-primary); transform: translateY(-2px); }

.footer-col h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: white;
  margin-bottom: 20px;
}

.footer-col ul li { margin-bottom: 12px; }

.footer-col ul li a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
}

.footer-col ul li a:hover { color: var(--color-accent-soft); }

.footer-qr {
  padding: 28px 0 0;
}

.footer-qr .qr-block { width: auto; }

.footer-bottom {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.42);
  flex-wrap: wrap;
}

.footer-bottom a { color: rgba(255, 255, 255, 0.55); }
.footer-bottom a:hover { color: var(--color-accent-soft); }

/* ===== Quote / Contact Form ===== */
.quote-layout {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 44px;
  align-items: start;
}

.contact-info-card {
  background: linear-gradient(160deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-lg);
  padding: 44px;
  color: white;
  position: relative;
  overflow: hidden;
}

.contact-info-card::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(46, 123, 224, 0.28) 0%, transparent 70%);
  border-radius: 50%;
}

.contact-info-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  position: relative;
}

.contact-info-card .ci-subtitle {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.72);
  margin-bottom: 32px;
  position: relative;
  line-height: 1.8;
}

.contact-info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 26px;
  position: relative;
}

.contact-info-item .ci-icon {
  width: 44px; height: 44px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-info-item .ci-text .label {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 2px;
}

.contact-info-item .ci-text .value {
  font-size: 0.9375rem;
  font-weight: 600;
  word-break: break-all;
}

.ci-note {
  position: relative;
  margin-top: 6px;
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.82);
}

.contact-form-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 44px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border-light);
}

.contact-form-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.contact-form-card .form-subtitle {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  margin-bottom: 28px;
}

.form-group { margin-bottom: 18px; }

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.form-group label .required {
  color: #E5673C;
  margin-left: 2px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 0.9375rem;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  background: white;
  box-shadow: 0 0 0 3px rgba(16, 60, 122, 0.08);
}

.form-group textarea { resize: vertical; min-height: 108px; }

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

.form-success {
  display: none;
  text-align: center;
  padding: 48px 24px;
}

.form-success.show { display: block; }

.form-success .success-icon {
  width: 64px; height: 64px;
  background: rgba(0, 179, 159, 0.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 20px;
  color: var(--color-teal);
}

.form-success h4 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.form-success p {
  font-size: 0.9375rem;
  color: var(--color-text-medium);
  line-height: 1.8;
}

/* ===== 代理商价格表 ===== */
.price-notice {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  max-width: 900px;
  margin: 0 auto 32px;
  padding: 16px 20px;
  background: rgba(245, 166, 35, 0.08);
  border: 1px solid rgba(245, 166, 35, 0.25);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  line-height: 1.7;
  color: #8A5B08;
}

.price-notice .pn-icon { font-size: 1.125rem; line-height: 1.4; flex-shrink: 0; }

.price-notice b { color: #6E4806; }

.price-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 10px;
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.price-card .pc-head {
  padding: 20px 22px 16px;
  border-bottom: 1px solid var(--color-border-light);
}

.price-card .pc-head h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.price-card .pc-head h3 .pc-tag {
  padding: 3px 10px;
  background: rgba(16, 60, 122, 0.08);
  color: var(--color-primary);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
}

.price-card .pc-head p {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-top: 6px;
}

table.price-table {
  width: 100%;
  border-collapse: collapse;
}

table.price-table thead th {
  padding: 15px 20px;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-text-medium);
  text-align: center;
  background: var(--color-bg-soft);
  white-space: nowrap;
}

table.price-table thead th:first-child {
  text-align: left;
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}

table.price-table thead th small {
  display: block;
  font-size: 0.6875rem;
  font-weight: 600;
  opacity: 0.82;
  margin-top: 2px;
}

table.price-table tbody td {
  padding: 18px 20px;
  text-align: center;
  border-top: 1px solid var(--color-border-light);
  font-size: 0.9375rem;
  color: var(--color-text-medium);
  vertical-align: middle;
}

table.price-table tbody td:first-child { text-align: left; }

.pkg-name {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-text);
}

.pkg-desc {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-top: 3px;
}

.price-old {
  color: var(--color-text-light);
  text-decoration: line-through;
  text-decoration-color: rgba(138, 155, 176, 0.65);
}

.price-promo {
  font-size: 1.125rem;
  font-weight: 800;
  color: #E5673C;
}

.price-agent {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-primary);
}

.price-promo .cur,
.price-agent .cur {
  font-size: 0.8125rem;
  font-weight: 700;
  margin-right: 1px;
}

.price-unit {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-light);
  margin-top: 2px;
}

/* 代理专享价列高亮 */
table.price-table thead th.col-agent {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: #fff;
}

table.price-table tbody td.col-agent {
  background: rgba(16, 60, 122, 0.045);
  border-left: 1px solid rgba(16, 60, 122, 0.1);
  border-right: 1px solid rgba(16, 60, 122, 0.1);
}

table.price-table tbody tr:last-child td.col-agent {
  border-bottom: 1px solid rgba(16, 60, 122, 0.1);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

table.price-table tbody tr.row-split td {
  border-top: 2px solid var(--color-border);
}

.pc-foot {
  padding: 16px 22px 14px;
  border-top: 1px solid var(--color-border-light);
  font-size: 0.8125rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* 价格表下方注册入口 */
.price-cta {
  text-align: center;
  margin-top: 36px;
  padding: 32px 24px;
  background: linear-gradient(160deg, #F0F6FD 0%, #E2EDFA 100%);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
}

.price-cta .price-cta-note {
  display: block;
  margin-top: 14px;
  font-size: 0.875rem;
  color: var(--color-text-medium);
}

/* ===== 会员权益卡 ===== */
.rights-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.rights-grid > * { min-width: 0; }

.rights-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  transition: var(--transition);
}

.rights-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
}

.rights-card .rc-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.rights-card .rc-icon {
  width: 46px;
  height: 46px;
  border-radius: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  flex-shrink: 0;
}

.rights-card h3 {
  font-size: 1.1875rem;
  font-weight: 700;
}

.rights-card .rc-sub {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-bottom: 18px;
}

.rights-card ul li {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: 0.875rem;
  color: var(--color-text-medium);
  padding: 5px 0;
  line-height: 1.65;
}

.rights-card ul li::before {
  content: '✓';
  color: var(--color-teal);
  font-weight: 700;
  font-size: 0.8125rem;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ===== 二维码区块 ===== */
.qr-block {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.qr-block:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.qr-block img {
  width: 96px;
  height: 96px;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
  padding: 4px;
  flex-shrink: 0;
}

.qr-block .qr-meta { min-width: 0; }

.qr-block .qr-title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
}

.qr-block .qr-tip {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
}

.footer-contact-list li {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 10px;
  line-height: 1.6;
  word-break: break-all;
}

.footer-contact-list li a { color: rgba(255, 255, 255, 0.75); }
.footer-contact-list li a:hover { color: var(--color-accent-soft); }

.footer-contact-list li .fc-k {
  display: block;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.38);
  margin-bottom: 1px;
}

/* ===== 二维码放大预览 ===== */
.qr-lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 24px;
  background: rgba(9, 18, 32, 0.82);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.qr-lightbox.show { display: flex; }

.qr-lightbox img {
  width: auto;
  max-width: 340px;
  max-height: 70vh;
  border-radius: var(--radius-md);
  background: #fff;
  padding: 10px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.qr-lightbox .qr-lb-tip {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.82);
}

.qr-lightbox .qr-lb-close {
  position: absolute;
  top: 20px;
  right: 24px;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
  transition: var(--transition);
}

.qr-lightbox .qr-lb-close:hover { background: rgba(255, 255, 255, 0.28); }

/* ===== Animations ===== */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible { opacity: 1; transform: translateY(0); }

.fade-in-up:nth-child(1) { transition-delay: 0.05s; }
.fade-in-up:nth-child(2) { transition-delay: 0.12s; }
.fade-in-up:nth-child(3) { transition-delay: 0.19s; }
.fade-in-up:nth-child(4) { transition-delay: 0.26s; }
.fade-in-up:nth-child(5) { transition-delay: 0.33s; }
.fade-in-up:nth-child(6) { transition-delay: 0.4s; }

/* ===== Responsive ===== */

/* 769–1100px：Logo 用全称「标大师AI编标工具」后加长，此区间收紧导航项与 Logo，
   避免贴边或挤压（实测 769px 处原本 gap 仅 0px，无余量） */
@media (min-width: 769px) and (max-width: 1100px) {
  .nav-menu a { padding: 8px 10px; font-size: 0.875rem; }
  .nav-cta { padding: 9px 16px; font-size: 0.8125rem !important; margin-left: 8px; }
  .logo-text .name { font-size: 0.875rem; }
  .logo-text .en { font-size: 0.625rem; }
}

@media (max-width: 1080px) {
  .workflow { grid-template-columns: repeat(3, 1fr); gap: 32px 20px; }
  .workflow::before { display: none; }
}

/* 代理商价格表：窄屏降低内边距，避免撑破 */
@media (max-width: 900px) {
  table.price-table thead th { padding: 13px 12px; font-size: 0.8125rem; }
  table.price-table tbody td { padding: 15px 12px; }
  .price-card .pc-head { padding: 18px 16px 14px; }
  .price-card .pc-foot { padding: 14px 16px 12px; }
}

/* 窄屏下价格表保持可读最小宽度，交由外层容器横向滚动 */
@media (max-width: 768px) {
  table.price-table { min-width: 588px; }
}

@media (max-width: 968px) {
  .hero-content,
  .product-hero,
  .quote-layout,
  .rights-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .features-grid,
  .security-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }

  .hero-title { font-size: 2.375rem; }
  .section-title, .cta-section h2 { font-size: 1.75rem; }
  .page-banner h1 { font-size: 2rem; }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0; right: 0;
    flex-direction: column;
    background: white;
    padding: 16px;
    box-shadow: var(--shadow-lg);
    border-bottom: 1px solid var(--color-border);
  }

  .nav-menu.open { display: flex; }
  .nav-menu a { width: 100%; padding: 12px 16px; }
  .nav-cta { margin: 8px 0 0; text-align: center; }
  .nav-toggle { display: flex; }

  .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .nav-toggle.active span:nth-child(2) { opacity: 0; }
  .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(7px, -7px); }

  .section { padding: 64px 0; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .features-grid,
  .security-grid,
  .rights-grid,
  .workflow { grid-template-columns: 1fr; }
  .workflow-step { text-align: left; display: flex; gap: 16px; align-items: flex-start; }
  .workflow-step .step-num { margin: 0; flex-shrink: 0; width: 56px; height: 56px; font-size: 1.25rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .hero-title { font-size: 2rem; letter-spacing: -0.5px; }
  .hero { padding: 108px 0 64px; }
  .page-banner { padding: 116px 0 48px; }
  .cta-section { padding: 64px 0; }
  .rights-card { padding: 26px 20px; }
  .contact-info-card, .contact-form-card { padding: 28px 22px; }
  .form-row { grid-template-columns: 1fr; }
}