/**
 * ZHITONG 官网核心视觉样式表
 * 纯原生 CSS，零外部 CDN 依赖，深度优化手机与桌面视口
 */

:root {
  --bg-main: #0a0e17;
  --bg-card: rgba(18, 24, 38, 0.75);
  --bg-card-hover: rgba(26, 35, 55, 0.85);
  --bg-input: rgba(13, 19, 33, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(99, 102, 241, 0.5);
  --border-active: #6366f1;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-primary: #6366f1;
  --accent-secondary: #3b82f6;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #3b82f6 50%, #06b6d4 100%);
  --accent-glow: rgba(99, 102, 241, 0.25);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.15);
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.15);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.15);
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

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

html, body {
  width: 100%;
  min-height: 100%;
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(99, 102, 241, 0.15) 0%, transparent 60%),
    radial-gradient(circle at 100% 30%, rgba(6, 182, 212, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 0% 70%, rgba(139, 92, 246, 0.08) 0%, transparent 50%);
  background-attachment: fixed;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* 链接与排版 */
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover {
  color: #a5b4fc;
}

/* 容器定义 */
.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 导航栏 */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(10, 14, 23, 0.8);
  border-bottom: 1px solid var(--border-subtle);
  transition: all 0.3s ease;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px var(--accent-glow);
}

.brand-icon svg {
  width: 20px;
  height: 20px;
  fill: #ffffff;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-links a {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  font-weight: 500;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* 按钮通用系统 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 18px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  text-align: center;
  white-space: normal;
  word-break: break-word;
  max-width: 100%;
  box-sizing: border-box;
  user-select: none;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8125rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.0625rem;
  border-radius: var(--radius-lg);
}

.btn-primary {
  background: var(--accent-gradient);
  color: #ffffff;
  box-shadow: 0 4px 18px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(99, 102, 241, 0.4);
  color: #ffffff;
}

.btn-primary:active {
  transform: translateY(1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--border-subtle);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-outline {
  background: transparent;
  border-color: var(--border-subtle);
  color: var(--text-secondary);
}

.btn-outline:hover {
  border-color: var(--text-primary);
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.03);
}

.btn-danger {
  background: var(--danger-bg);
  border-color: rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}

.btn-danger:hover {
  background: rgba(239, 68, 68, 0.25);
  border-color: var(--danger);
  color: #ffffff;
}

.btn-disabled, .btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
  transform: none !important;
  box-shadow: none !important;
}

.btn-block {
  width: 100%;
}

/* 语言切换按钮 */
.lang-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  padding: 6px 12px;
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.lang-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

/* Hero Section */
.hero {
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-full);
  color: #a5b4fc;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  background: linear-gradient(180deg, #ffffff 30%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 760px;
  margin: 0 auto 36px;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.hero-note {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* 拟物化终端/工作台预览卡片 */
.preview-container {
  margin: 60px auto 0;
  max-width: 980px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #0f141f;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.7);
  overflow: hidden;
  text-align: left;
}

.mac-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: rgba(22, 29, 44, 0.95);
  border-bottom: 1px solid var(--border-subtle);
}

.mac-dots {
  display: flex;
  align-items: center;
  gap: 8px;
}

.mac-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.mac-dot.red { background: #ff5f56; }
.mac-dot.yellow { background: #ffbd2e; }
.mac-dot.green { background: #27c93f; }

.mac-title {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.mac-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--success);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}

.preview-body {
  padding: 24px;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
  min-height: 380px;
  background: #0a0d14;
  font-family: var(--font-mono);
}

.preview-terminals {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.terminal-pane {
  background: rgba(18, 24, 38, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px;
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 8px;
  margin-bottom: 10px;
  font-size: 0.75rem;
  color: #818cf8;
}

.terminal-line {
  font-size: 0.8125rem;
  line-height: 1.5;
  color: #cbd5e1;
}

.terminal-line.cmd {
  color: #38bdf8;
}

.terminal-line.success {
  color: #4ade80;
}

.preview-sidebar {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.preview-card {
  background: rgba(18, 24, 38, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
}

.preview-card-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.quota-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 0.8125rem;
}

.quota-bar {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  margin-top: 4px;
  overflow: hidden;
}

.quota-progress {
  height: 100%;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
}

/* 核心功能板块 */
.section {
  padding: 90px 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 54px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--text-secondary);
}

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

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(99, 102, 241, 0.3);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px -10px rgba(0, 0, 0, 0.5);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  stroke: #818cf8;
}

.feature-title {
  font-size: 1.1875rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.feature-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 价格卡片体系 */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.3s ease;
}

.pricing-card.popular {
  border-color: rgba(99, 102, 241, 0.6);
  background: rgba(22, 28, 48, 0.9);
  box-shadow: 0 10px 40px -10px rgba(99, 102, 241, 0.3);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-gradient);
  color: #ffffff;
  padding: 4px 14px;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.plan-name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.plan-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
  min-height: 40px;
  margin-bottom: 20px;
}

.plan-price-box {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 20px;
}

.plan-price {
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.plan-period {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
  flex-grow: 1;
}

.plan-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.plan-feature-item svg {
  width: 18px;
  height: 18px;
  stroke: var(--success);
  flex-shrink: 0;
  margin-top: 2px;
}

.plan-action {
  margin-top: auto;
}

/* FAQ 常见问题 */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.2s ease;
}

.faq-question {
  padding: 20px 24px;
  font-size: 1.0625rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

.faq-question:hover {
  color: #a5b4fc;
}

.faq-icon {
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
  stroke: var(--text-muted);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  stroke: var(--accent-primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
  padding: 0 24px;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding-bottom: 20px;
  transition: max-height 0.3s ease-in-out;
}

/* 页脚 */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 40px;
  margin-top: 60px;
  background: rgba(10, 14, 23, 0.95);
}

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

.footer-brand-desc {
  margin-top: 14px;
  font-size: 0.875rem;
  color: var(--text-muted);
  max-width: 320px;
}

.footer-links-col h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer-links-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links-col a {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* 认证表单卡片 (login.html) */
.auth-wrapper {
  min-height: calc(100vh - 70px - 140px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}

.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.auth-header {
  text-align: center;
  margin-bottom: 28px;
}

.auth-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.auth-subtitle {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

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

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.input-with-button {
  display: flex;
  gap: 8px;
}

.input-control {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9375rem;
  font-family: inherit;
  transition: all 0.2s ease;
  outline: none;
}

.input-control:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.input-control::placeholder {
  color: var(--text-muted);
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 24px 0;
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.auth-divider::before, .auth-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border-subtle);
}

.social-auth-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.auth-terms-notice {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 20px;
  line-height: 1.5;
}

.auth-terms-notice a {
  color: #a5b4fc;
  text-decoration: underline;
}

/* 用户中心 (account.html) */
.account-layout {
  padding: 40px 0 80px;
}

.account-header {
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.account-header-info h1 {
  font-size: 1.875rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.account-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  min-width: 0;
  max-width: 100%;
}

.account-grid > * {
  min-width: 0;
  max-width: 100%;
}

.panel-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
}

.btn-group-responsive {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.panel-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 16px;
}

.panel-card-title {
  font-size: 1.1875rem;
  font-weight: 600;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.stat-item {
  background: rgba(13, 19, 33, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
}

.stat-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.stat-value {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-value.highlight {
  color: #818cf8;
}

/* 本地面板直连卡片突出样式 */
.local-panel-hero-card {
  background: linear-gradient(135deg, rgba(30, 41, 69, 0.9) 0%, rgba(17, 24, 39, 0.9) 100%);
  border: 1px solid rgba(99, 102, 241, 0.4);
  box-shadow: 0 10px 30px -10px rgba(99, 102, 241, 0.2);
}

.local-panel-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.local-panel-text {
  max-width: 600px;
}

.local-panel-text h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.local-panel-text p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* 设备表格响应式处理 */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.device-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}

.device-table th {
  padding: 12px 16px;
  background: rgba(13, 19, 33, 0.6);
  color: var(--text-muted);
  font-weight: 600;
  border-bottom: 1px solid var(--border-subtle);
}

.device-table td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
}

.device-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
}

.badge-success {
  background: var(--success-bg);
  color: #34d399;
}

.badge-muted {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
}

/* 模态对话框 */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-box {
  width: 100%;
  max-width: 460px;
  background: #111827;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
  transform: scale(0.95);
  transition: transform 0.2s ease;
}

.modal-overlay.active .modal-box {
  transform: scale(1);
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.modal-body {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}

.modal-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}

/* Toast 浮动提示 */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 380px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background: #1e293b;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  font-size: 0.875rem;
  color: var(--text-primary);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: toastIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--danger); }
.toast.info { border-left: 4px solid var(--accent-primary); }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(12px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* 法律条款与落地页 */
.legal-page {
  padding: 60px 0 100px;
}

.legal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 820px;
  margin: 0 auto;
}

.legal-header {
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 20px;
  margin-bottom: 30px;
}

.legal-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.legal-content {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  min-height: 120px;
}

.legal-pending {
  padding: 30px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-md);
  text-align: center;
  color: var(--text-muted);
  font-size: 1.125rem;
}

/* 支付落地状态页 */
.status-page-card {
  max-width: 540px;
  margin: 60px auto;
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 48px 36px;
  box-shadow: var(--shadow-card);
}

.status-icon-wrap {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.status-icon-wrap.success {
  background: var(--success-bg);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-icon-wrap.success svg {
  width: 36px;
  height: 36px;
  stroke: var(--success);
}

.status-icon-wrap.cancel {
  background: var(--warning-bg);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.status-icon-wrap.cancel svg {
  width: 36px;
  height: 36px;
  stroke: var(--warning);
}

.status-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.status-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 28px;
  line-height: 1.6;
}

.entitlement-box {
  background: rgba(13, 19, 33, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 28px;
  text-align: left;
}

/* 媒体查询：适配手机宽度（390px 无横向滚动） */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .preview-body {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.25rem;
  }
  .hero-subtitle {
    font-size: 1.0625rem;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .panel-card {
    padding: 20px 16px;
  }
  .btn-group-responsive {
    flex-direction: column;
    gap: 10px;
  }
  .btn-group-responsive .btn {
    width: 100%;
  }
  .local-panel-content {
    flex-direction: column;
    align-items: stretch;
  }
  .local-panel-content > div:last-child,
  .local-panel-content .btn {
    width: 100%;
  }

  /* 设备表在窄屏转为卡片式排列，彻底消除横向溢出 */
  .table-responsive {
    overflow: visible;
    width: 100%;
    max-width: 100%;
  }
  .device-table,
  .device-table tbody {
    display: block;
    width: 100%;
    max-width: 100%;
  }
  .device-table thead {
    display: none; /* 隐藏传统多列表头 */
  }
  .device-table tr {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    background: rgba(13, 19, 33, 0.6);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 14px;
    margin-bottom: 12px;
  }
  .device-table td {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 4px 0;
    border: none;
    word-break: break-word;
  }
  .device-table td::before {
    content: attr(data-label);
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
    flex-shrink: 0;
    margin-right: 12px;
  }
  .device-table td:last-child {
    justify-content: stretch;
    margin-top: 6px;
    padding-top: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
  }
  .device-table td:last-child::before {
    display: none;
  }
  .device-table td:last-child .btn {
    width: 100%;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
  .nav-links {
    display: none; /* 移动端隐藏主导航链接，保留操作按钮 */
  }
  .container {
    padding: 0 16px;
  }
  .toast-container {
    left: 16px;
    right: 16px;
    bottom: 16px;
    max-width: calc(100% - 32px);
  }
}