/**
 * 广州韫智科技有限公司 — 公司官网样式
 * Design tokens aligned with LawRedact (tuomin/website/design-tokens/tokens.css)
 */

:root {
  --lr-primary: #633992;
  --lr-primary-hover: #4f2b79;
  --lr-primary-active: #422364;
  --lr-primary-light: #f5f2ff;
  --lr-primary-wash: #f9f7ff;
  --lr-on-primary: #ffffff;
  --lr-secondary: #f5f2ff;
  --lr-secondary-fg: #5e3a8c;
  --lr-secondary-border: #e2dbfa;
  --lr-accent-fg: #5e3a8c;
  --lr-header-bg: #512e81;
  --lr-ring: #c4b8e8;

  --lr-bg: #fafafa;
  --lr-surface: #ffffff;
  --lr-surface-alt: #f5f4f8;
  --lr-muted: #f3f4f6;

  --lr-border: #e5e7eb;
  --lr-border-light: #e5e3ec;
  --lr-border-hover: #c4b8e8;
  --lr-border-accent: #e2dbfa;

  --lr-text: #2e253a;
  --lr-text-secondary: #3d3349;
  --lr-text-muted: #4b5563;
  --lr-text-disabled: #9ca3af;

  --lr-success: #10b981;
  --lr-success-light: #dcfce7;
  --lr-success-text: #15803d;

  --lr-shadow-card: 0 1px 3px rgba(94, 58, 140, 0.08);
  --lr-shadow-dropdown: 0 8px 24px rgba(94, 58, 140, 0.12);
  --lr-shadow-hero: 0 25px 50px -12px rgba(81, 46, 129, 0.25);

  --lr-font-sans: "PingFang SC", "Microsoft YaHei UI", "Inter", "Segoe UI", system-ui, sans-serif;
  --lr-font-mono: "JetBrains Mono", "Consolas", monospace;

  --lr-max-width: 1280px;
  --lr-nav-height: 64px;
  --lr-radius-sm: 8px;
  --lr-radius-md: 12px;
  --lr-radius-lg: 16px;
  --lr-radius-full: 9999px;

  --lr-gradient-hero: linear-gradient(160deg, #3d2563 0%, #512e81 35%, #633992 65%, #7a4eb5 100%);
}

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

html {
  scroll-behavior: smooth;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--lr-primary);
  text-decoration: none;
}

a:hover {
  color: var(--lr-primary-hover);
}

h1, h2, h3, h4 {
  margin: 0 0 0.5em;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--lr-text);
  font-weight: 650;
}

p {
  margin: 0 0 1em;
  color: var(--lr-text-muted);
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--lr-max-width);
  margin: 0 auto;
  padding: 0 24px;
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 24px;
  border-radius: var(--lr-radius-sm);
  font-weight: 600;
  font-size: 15px;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s, border-color 0.2s, color 0.2s;
  text-decoration: none;
  border: none;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--lr-primary);
  color: var(--lr-on-primary);
}

.btn-primary:hover {
  background: var(--lr-primary-hover);
  color: var(--lr-on-primary);
}

.btn-secondary {
  background: var(--lr-secondary);
  color: var(--lr-secondary-fg);
  border: 1px solid var(--lr-secondary-border);
}

.btn-secondary:hover {
  background: #ebe4ff;
  color: var(--lr-secondary-fg);
}

.btn-ghost-light {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.22);
  color: #fff;
}

.btn-white {
  background: #fff;
  color: var(--lr-primary);
}

.btn-white:hover {
  background: var(--lr-primary-light);
  color: var(--lr-primary-hover);
}

.btn-lg {
  height: 48px;
  padding: 0 28px;
  font-size: 16px;
}

.btn-sm {
  height: 36px;
  padding: 0 16px;
  font-size: 14px;
  border-radius: var(--lr-radius-full);
}

/* ── Badge ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  background: var(--lr-primary-light);
  color: var(--lr-accent-fg);
  border: 1px solid var(--lr-secondary-border);
  border-radius: var(--lr-radius-full);
  font-size: 13px;
  font-weight: 500;
}

.badge-dot::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lr-primary);
}

/* ── Cards ── */
.card {
  background: var(--lr-surface);
  border: 1px solid var(--lr-border-light);
  border-radius: var(--lr-radius-lg);
  box-shadow: var(--lr-shadow-card);
  padding: 28px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.card:hover {
  border-color: var(--lr-border-hover);
  box-shadow: var(--lr-shadow-dropdown);
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--lr-radius-md);
  background: var(--lr-primary-light);
  color: var(--lr-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  flex-shrink: 0;
}

.card-icon svg {
  width: 22px;
  height: 22px;
}

.card h3 {
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.card p {
  margin: 0;
  font-size: 15px;
}

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--lr-nav-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--lr-border-light);
}

.site-header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--lr-text);
  text-decoration: none;
  min-width: 0;
}

.brand:hover {
  color: var(--lr-text);
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand-name {
  font-size: 15px;
  font-weight: 650;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.brand-sub {
  font-size: 11px;
  color: var(--lr-text-muted);
  line-height: 1.2;
  margin-top: 2px;
}

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

.nav a {
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--lr-text-secondary);
  border-radius: var(--lr-radius-sm);
  transition: background 0.15s, color 0.15s;
}

.nav a:hover,
.nav a.active {
  color: var(--lr-primary);
  background: var(--lr-primary-light);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--lr-border);
  border-radius: var(--lr-radius-sm);
  background: var(--lr-surface);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--lr-text);
  position: relative;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--lr-text);
}

.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }

.mobile-nav {
  display: none;
  position: absolute;
  top: var(--lr-nav-height);
  left: 0;
  right: 0;
  background: var(--lr-surface);
  border-bottom: 1px solid var(--lr-border-light);
  padding: 12px 16px 20px;
  box-shadow: var(--lr-shadow-dropdown);
}

.mobile-nav.open {
  display: block;
}

.mobile-nav a {
  display: block;
  padding: 12px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--lr-text-secondary);
  border-radius: var(--lr-radius-sm);
}

.mobile-nav a:hover,
.mobile-nav a.active {
  color: var(--lr-primary);
  background: var(--lr-primary-light);
}

.mobile-nav .btn {
  width: 100%;
  margin-top: 8px;
}

@media (max-width: 960px) {
  .nav,
  .header-actions {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .brand-name {
    font-size: 14px;
  }
}

/* ── Hero (home) ── */
.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: var(--lr-gradient-hero);
  padding: 88px 0 96px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 0v60M0 30h60' stroke='%23fff' stroke-width='1'/%3E%3C/svg%3E");
  opacity: 0.06;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--lr-radius-full);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 20px;
}

.hero h1 {
  color: #fff;
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.03em;
}

.hero-lead {
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.88);
  max-width: 36em;
  margin-bottom: 28px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
}

.hero-trust li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
}

.hero-trust li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #c4b8e8;
  flex-shrink: 0;
}

.hero-visual {
  position: relative;
}

.hero-visual img {
  border-radius: var(--lr-radius-lg);
  box-shadow: var(--lr-shadow-hero);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

@media (max-width: 900px) {
  .hero {
    padding: 64px 0 72px;
  }

  .hero .container {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .hero-visual {
    order: 2;
  }
}

/* ── Page hero (inner) ── */
.page-hero {
  background: var(--lr-primary-wash);
  border-bottom: 1px solid var(--lr-border-accent);
  padding: 56px 0 52px;
  text-align: center;
}

.page-hero .badge {
  margin-bottom: 16px;
}

.page-hero h1 {
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  margin-bottom: 12px;
}

.page-hero p {
  max-width: 40em;
  margin: 0 auto;
  font-size: 1.0625rem;
}

/* ── Sections ── */
.section {
  padding: 72px 0;
}

.section-wash {
  background: var(--lr-primary-wash);
}

.section-alt {
  background: var(--lr-surface-alt);
}

.section-header {
  text-align: center;
  max-width: 40em;
  margin: 0 auto 48px;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--lr-primary);
  margin-bottom: 12px;
}

.section-eyebrow::before,
.section-eyebrow::after {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--lr-secondary-border);
}

.section-header h2 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  margin-bottom: 12px;
}

.section-header p {
  margin: 0;
  font-size: 1rem;
}

@media (max-width: 768px) {
  .section {
    padding: 52px 0;
  }

  .section-header {
    margin-bottom: 32px;
  }
}

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

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

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

@media (max-width: 900px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ── Product highlight ── */
.product-spotlight {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.product-spotlight img {
  border-radius: var(--lr-radius-lg);
  border: 1px solid var(--lr-border-light);
  box-shadow: var(--lr-shadow-dropdown);
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 20px 0 28px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--lr-text-secondary);
}

.feature-list li svg {
  width: 20px;
  height: 20px;
  color: var(--lr-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

@media (max-width: 800px) {
  .product-spotlight {
    grid-template-columns: 1fr;
  }
}

/* ── Audience / persona ── */
.persona {
  text-align: center;
  padding: 28px 20px;
}

.persona .card-icon {
  margin-left: auto;
  margin-right: auto;
}

/* ── Trust bar ── */
.trust-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 28px;
}

.trust-bar li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--lr-text-secondary);
}

.trust-bar li::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lr-primary);
}

/* ── Compare table ── */
.compare {
  overflow-x: auto;
  border-radius: var(--lr-radius-lg);
  border: 1px solid var(--lr-border-light);
  background: var(--lr-surface);
  box-shadow: var(--lr-shadow-card);
}

.compare table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}

.compare th,
.compare td {
  padding: 14px 18px;
  text-align: left;
  font-size: 14px;
  border-bottom: 1px solid var(--lr-border-light);
}

.compare th {
  background: var(--lr-primary-wash);
  font-weight: 600;
  color: var(--lr-text);
}

.compare th.highlight {
  background: var(--lr-primary);
  color: #fff;
}

.compare td.highlight {
  background: rgba(99, 57, 146, 0.04);
  font-weight: 500;
  color: var(--lr-primary);
}

.compare tr:last-child td {
  border-bottom: none;
}

/* ── Info list / entity ── */
.entity-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
}

.entity-chip {
  padding: 10px 14px;
  text-align: center;
  font-size: 13px;
  font-weight: 500;
  color: var(--lr-secondary-fg);
  background: var(--lr-primary-light);
  border: 1px solid var(--lr-secondary-border);
  border-radius: var(--lr-radius-sm);
}

/* ── Contact cards ── */
.contact-card a {
  font-weight: 600;
  word-break: break-all;
}

.contact-meta {
  font-size: 14px;
  color: var(--lr-text-muted);
  margin-top: 4px;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--lr-surface);
  border-radius: var(--lr-radius-lg);
  overflow: hidden;
  border: 1px solid var(--lr-border-light);
  box-shadow: var(--lr-shadow-card);
}

.info-table th,
.info-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--lr-border-light);
  font-size: 15px;
}

.info-table th {
  width: 140px;
  background: var(--lr-primary-wash);
  color: var(--lr-text-secondary);
  font-weight: 600;
  white-space: nowrap;
}

.info-table tr:last-child th,
.info-table tr:last-child td {
  border-bottom: none;
}

@media (max-width: 600px) {
  .info-table th,
  .info-table td {
    display: block;
    width: 100%;
  }

  .info-table th {
    padding-bottom: 4px;
    border-bottom: none;
  }

  .info-table td {
    padding-top: 4px;
  }
}

/* ── Legal prose ── */
.prose {
  max-width: 720px;
  margin: 0 auto;
  background: var(--lr-surface);
  border: 1px solid var(--lr-border-light);
  border-radius: var(--lr-radius-lg);
  padding: 40px 36px;
  box-shadow: var(--lr-shadow-card);
}

.prose h2 {
  font-size: 1.25rem;
  margin-top: 1.75em;
  margin-bottom: 0.6em;
}

.prose h2:first-child {
  margin-top: 0;
}

.prose p,
.prose li {
  font-size: 15px;
  color: var(--lr-text-muted);
  line-height: 1.75;
}

.prose ul {
  list-style: disc;
  padding-left: 1.25em;
  margin-bottom: 1em;
}

.prose li {
  margin-bottom: 0.4em;
}

.prose .updated {
  font-size: 13px;
  color: var(--lr-text-disabled);
  margin-bottom: 1.5em;
}

@media (max-width: 600px) {
  .prose {
    padding: 28px 20px;
  }
}

/* ── CTA band ── */
.cta-band {
  position: relative;
  background: var(--lr-primary-wash);
  padding: 64px 0;
  text-align: center;
  overflow: hidden;
}

.cta-band::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #512e81, #633992, #7c4db8);
}

.cta-band h2 {
  font-size: clamp(1.4rem, 2.5vw, 1.85rem);
  margin-bottom: 12px;
}

.cta-band p {
  max-width: 32em;
  margin: 0 auto 24px;
}

.cta-band .actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

/* ── Footer ── */
.site-footer {
  background: var(--lr-primary-wash);
  border-top: 1px solid var(--lr-border-accent);
  padding: 56px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 40px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  color: var(--lr-text);
  font-weight: 650;
  font-size: 15px;
}

.footer-brand img {
  width: 32px;
  height: 32px;
  border-radius: 7px;
}

.footer-desc {
  font-size: 14px;
  color: var(--lr-text-muted);
  line-height: 1.65;
  max-width: 28em;
  margin-bottom: 16px;
}

.footer-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.footer-trust li {
  font-size: 12px;
  color: var(--lr-text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-trust li::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--lr-primary);
}

.footer-col h4 {
  font-size: 13px;
  font-weight: 650;
  margin-bottom: 14px;
  color: var(--lr-text);
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--lr-text-muted);
  padding: 4px 0;
}

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

.footer-col p {
  font-size: 14px;
  margin: 0 0 8px;
  line-height: 1.55;
}

.footer-bottom {
  border-top: 1px solid var(--lr-border-accent);
  padding-top: 20px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: var(--lr-text-muted);
}

.footer-bottom a {
  color: var(--lr-text-muted);
}

.footer-bottom a:hover {
  color: var(--lr-primary);
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
  }
}

/* ── Media split (office / figure + copy) ── */
.media-split {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}

.media-split-visual {
  margin: 0;
  border-radius: var(--lr-radius-lg);
  overflow: hidden;
  border: 1px solid var(--lr-border-light);
  box-shadow: var(--lr-shadow-dropdown);
  background: var(--lr-surface-alt);
}

.media-split-visual img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  display: block;
}

.media-split-body h3 {
  font-size: 1.25rem;
  margin: 14px 0 12px;
}

.media-split-body > p {
  margin-bottom: 8px;
}

.media-split-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

@media (max-width: 800px) {
  .media-split {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

/* ── Reveal animation ── */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ── Utilities ── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }