/* OPENCLAW 官网 - 科技感风格，参考 FastGrow */

:root {
  --bg-dark: #0a0b0f;
  --bg-card: #12141a;
  --bg-elevated: #1a1d26;
  --text: #e8eaef;
  --text-muted: #8b8f9a;
  --accent: #00d4aa;
  --accent-dim: #00a884;
  --accent-glow: rgba(0, 212, 170, 0.25);
  --border: rgba(255, 255, 255, 0.08);
  --radius: 12px;
  --radius-lg: 20px;
  --font-sans: "DM Sans", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "JetBrains Mono", monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg-dark);
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  background: rgba(10, 11, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-img {
  width: 48px;
  height: 48px;
  object-fit: contain;
  border-radius: 0;
}

.logo-text {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

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

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav a:hover {
  color: var(--accent);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-dark);
}

.btn-primary:hover {
  background: var(--accent-dim);
  box-shadow: 0 0 24px var(--accent-glow);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
}

.btn-hero {
  padding: 18px 56px;
  font-size: 1.15rem;
  font-weight: 700;
  border-radius: 50px;
  letter-spacing: 0.03em;
  box-shadow: 0 0 32px rgba(0, 200, 150, 0.35);
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-hero:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 48px rgba(0, 200, 150, 0.5);
}

/* Hero */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black, transparent 70%);
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
}

.orb-1 {
  width: 400px;
  height: 400px;
  background: var(--accent);
  top: -120px;
  right: -80px;
}

.orb-2 {
  width: 300px;
  height: 300px;
  background: #3b82f6;
  bottom: 10%;
  left: -60px;
  opacity: 0.25;
}

.hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 16px;
}

.hero-title {
  margin: 0 0 24px;
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.hero-title .line {
  display: block;
}

.hero-title .accent {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.85em;
}

.hero-desc {
  max-width: 640px;
  margin: 0 auto 32px;
  font-size: 1.125rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.hero-desc strong {
  color: var(--accent);
  font-weight: 600;
}

.hero-highlight-line {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.01em;
}

.hero-actions {
  display: flex;
  justify-content: center;
  margin-top: 8px;
}

/* ── 核心优势区块 ── */
.features-section {
  background: var(--bg-dark);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  border-color: rgba(0, 212, 170, 0.3);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.feature-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.feature-icon {
  font-size: 1.75rem;
  line-height: 1;
}

.feature-card-header h3 {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 700;
}

.feature-desc {
  margin: 0 0 14px;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.feature-list li {
  font-size: 0.875rem;
  color: var(--text-muted);
  padding-left: 18px;
  position: relative;
  line-height: 1.5;
}

.feature-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
  font-size: 0.8rem;
}

.feature-example {
  margin-top: 4px;
  padding: 14px 16px;
  background: rgba(0, 212, 170, 0.05);
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
}

.example-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.feature-example p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
}

.hero-feature-bar {
  display: inline-flex;
  align-items: center;
  gap: 0;
  margin-top: 36px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

.feature-bar-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
  transition: background 0.2s, color 0.2s;
}

.feature-bar-item:hover {
  background: rgba(0, 212, 170, 0.06);
  color: var(--text);
}

.feature-bar-icon {
  font-size: 1.1rem;
  line-height: 1;
}

.feature-bar-divider {
  width: 1px;
  height: 28px;
  background: var(--border);
  flex-shrink: 0;
}

/* Sections */
.section {
  padding: 80px 0;
}

.section-dark {
  background: var(--bg-card);
}

.section-title {
  margin: 0 0 8px;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  text-align: center;
}

.section-label {
  display: inline-block;
  margin-right: 8px;
}

.section-icon {
  display: inline-block;
  width: 34px;
  height: 34px;
  object-fit: contain;
  vertical-align: middle;
  margin-right: 8px;
  margin-bottom: 4px;
}

.section-desc {
  text-align: center;
  color: var(--text-muted);
  margin: 0 0 48px;
  font-size: 1.0625rem;
}

/* 痛点网格 */
.pain-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.pain-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.pain-card:hover {
  border-color: rgba(0, 212, 170, 0.3);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.pain-icon {
  font-size: 1.75rem;
  display: block;
  margin-bottom: 12px;
}

.pain-card h3 {
  margin: 0 0 10px;
  font-size: 1.125rem;
  font-weight: 600;
}

.pain-card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 解决方案 - 五层 */
.solution-layers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.layer-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: border-color 0.2s;
}

.layer-card:hover {
  border-color: var(--accent);
}

.layer-name {
  display: block;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 4px;
}

.layer-desc {
  display: block;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.layer-card p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.solution-foot {
  text-align: center;
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 560px;
  margin: 0 auto;
}

.solution-foot strong {
  color: var(--accent);
}

/* 应用场景 - Tabs */
.scenario-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 32px;
}

.tab-btn {
  padding: 12px 20px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.tab-btn:hover {
  color: var(--text);
  border-color: rgba(255,255,255,0.15);
}

.tab-btn.active {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(0, 212, 170, 0.08);
}

.scenario-panels {
  position: relative;
  min-height: 220px;
}

.scenario-panel {
  display: none;
  animation: fadeIn 0.3s ease;
}

.scenario-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.scenario-panel h3 {
  margin: 0 0 16px;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
}

.scenario-list {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.8;
}

.scenario-list li {
  margin-bottom: 8px;
}

/* 应用场景 - 居中卡片式 */
.scenario-card {
  max-width: 900px;
  margin: 0 auto;
  padding: 32px 28px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.scenario-card:hover {
  border-color: rgba(0, 212, 170, 0.2);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}

.scenario-flow {
  margin: 0 0 28px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.02em;
}

.scenario-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  text-align: center;
}

.scenario-item-card {
  padding: 20px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--text-muted);
  transition: border-color 0.2s, color 0.2s;
}

.scenario-item-card:hover {
  border-color: rgba(0, 212, 170, 0.25);
  color: var(--text);
}

.scenario-item-card strong {
  display: block;
  color: var(--text);
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 0.9375rem;
}

.scenario-item-card br + br {
  display: none;
}

@media (max-width: 640px) {
  .scenario-cards-grid {
    grid-template-columns: 1fr;
  }

  .scenario-card {
    padding: 24px 20px;
  }
}

.skill-highlight {
  margin-top: 48px;
  padding: 24px;
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.skill-title {
  margin: 0 0 16px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill-tags span {
  padding: 8px 14px;
  font-size: 0.875rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-muted);
}

/* 成功案例 */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

@media (max-width: 768px) {
  .cases-grid {
    grid-template-columns: 1fr;
  }
}

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color 0.2s;
}

.case-card:hover {
  border-color: rgba(0, 212, 170, 0.25);
}

.case-result {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 14px;
  letter-spacing: 0.01em;
}

.case-card blockquote {
  margin: 0 0 16px;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
  font-style: normal;
}

.case-card footer {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.case-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  margin-bottom: 16px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(0, 212, 170, 0.08);
  border: 1px solid rgba(0, 212, 170, 0.2);
  border-radius: 100px;
}

/* CTA */
.cta-section {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--bg-card) 0%, var(--bg-dark) 100%);
}

.cta-inner {
  text-align: center;
}

.cta-title {
  margin: 0 0 12px;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
}

.cta-desc {
  margin: 0 0 32px;
  color: var(--text-muted);
  font-size: 1.0625rem;
}

/* Footer */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1rem;
}

.footer-copy {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .nav {
    display: none;
  }

  .section {
    padding: 56px 0;
  }

  .hero {
    min-height: auto;
    padding: 100px 0 60px;
  }

  .pain-grid {
    grid-template-columns: 1fr;
  }

  .solution-layers {
    grid-template-columns: 1fr;
  }
}

/* ── 弹窗 ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
}

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

.modal-box {
  position: relative;
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px 32px;
  transform: translateY(16px);
  transition: transform 0.25s;
}

.modal-overlay.active .modal-box {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: color 0.2s, background 0.2s;
}

.modal-close:hover {
  color: var(--text);
  background: var(--bg-elevated);
}

.modal-title {
  margin: 0 0 6px;
  font-size: 1.375rem;
  font-weight: 700;
}

.modal-desc {
  margin: 0 0 24px;
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

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

.form-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
}

.required {
  color: var(--accent);
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: 10px 14px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--text);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.2s;
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(139, 143, 154, 0.6);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent);
}

.form-group select {
  appearance: none;
  -webkit-appearance: none;
  color-scheme: dark;
  background-color: #1e2128;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238b8f9a' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  cursor: pointer;
  width: 100%;
}

.form-group select option {
  background-color: #1e2128;
  color: var(--text);
}

.form-msg {
  font-size: 0.9rem;
  padding: 0;
  border-radius: var(--radius);
  min-height: 0;
}

.form-msg.success {
  color: var(--accent);
}

.form-msg.error {
  color: #f87171;
}

.form-submit {
  width: 100%;
  margin-top: 4px;
}

.form-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ===== 1分钟看懂模块 ===== */
.quick-understand {
  background: var(--bg);
}

.qu-icp {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 40px 0 56px;
}

.qu-icp-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  transition: border-color 0.2s;
}

.qu-icp-card:hover {
  border-color: var(--accent);
}

.qu-icp-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 12px;
}

.qu-icp-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

.qu-subtitle {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
  text-align: center;
  margin: 0 0 10px;
}

.qu-subtitle-note {
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin: 0 0 28px;
}

.qu-workflows {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 56px;
}

.qu-wf-desc strong {
  color: var(--accent);
  font-weight: 600;
}

.qu-wf-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.qu-wf-tags span {
  font-size: 0.75rem;
  color: var(--text-muted);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 3px 10px;
}

.qu-workflow-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 28px 24px;
}

.qu-wf-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  background: rgba(0, 200, 150, 0.12);
  border: 1px solid rgba(0, 200, 150, 0.3);
  border-radius: 20px;
  padding: 3px 12px;
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}

.qu-workflow-card h4 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 16px;
}

.qu-wf-flow {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.qu-wf-flow span {
  font-size: 0.8rem;
  color: var(--text-muted);
  background: rgba(255,255,255,0.06);
  border-radius: 6px;
  padding: 4px 10px;
}

.qu-wf-flow .arrow {
  background: none;
  padding: 0;
  color: var(--accent);
  font-size: 0.9rem;
}

.qu-wf-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

/* Time-to-Value */
.qu-ttv {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: 48px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
}

.qu-ttv-step {
  text-align: center;
  flex: 1;
}

.qu-ttv-num {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 8px;
}

.qu-ttv-step p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}

.qu-ttv-highlight .qu-ttv-num {
  color: var(--accent);
}

.qu-ttv-highlight p {
  color: var(--text);
}

.qu-ttv-arrow {
  font-size: 1.4rem;
  color: var(--border);
  padding: 0 8px;
  flex-shrink: 0;
}

/* CTA */
.qu-cta {
  text-align: center;
}

.qu-cta-note {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin: 12px 0 0;
}

@media (max-width: 768px) {
  .qu-icp {
    grid-template-columns: repeat(2, 1fr);
  }
  .qu-workflows {
    grid-template-columns: 1fr;
  }
  .qu-ttv {
    flex-wrap: wrap;
    gap: 16px;
  }
  .qu-ttv-arrow {
    display: none;
  }
  .qu-ttv-step {
    flex: 0 0 45%;
  }
}

/* 提交成功视图 */
.modal-success {
  display: none;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 8px 0 4px;
  gap: 12px;
}

.success-icon {
  font-size: 3rem;
  line-height: 1;
}

.success-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin: 0;
}

.success-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  margin: 0;
}

.success-guide {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0;
}

.success-guide strong {
  color: var(--accent);
}

.success-qr {
  background: #fff;
  border-radius: 16px;
  padding: 16px;
  display: inline-block;
  margin: 4px 0;
}

.success-qr img {
  width: 200px;
  height: 200px;
  display: block;
  border-radius: 8px;
}

.success-tip {
  font-size: 0.85rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 10px 16px;
  margin: 0;
  line-height: 1.6;
}

@media (max-width: 480px) {
  .modal-box {
    padding: 28px 20px 24px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}