:root {
  --paper: #f7f4ef;
  --ink: #1f2937;
  --copper: #c2410c;
  --copper-dark: #9a3412;
  --sage: #0f766e;
  --indigo: #1e3a8a;
  --sun: #f59e0b;
  --card: #ffffff;
  --line: #e7e2d8;
  --muted: #6b7280;
  --shadow: 0 20px 45px rgba(17, 24, 39, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.wrap {
  width: min(1200px, 92%);
  margin: 0 auto;
}

.wp10-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 244, 239, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.wp10-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 18px;
}

.wp10-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.wp10-brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  color: var(--copper);
  font-weight: 800;
}

.wp10-brand-text span {
  display: block;
  font-size: 14px;
  color: var(--muted);
  font-weight: 500;
}

.wp10-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.wp10-link {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--muted);
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.wp10-link.active,
.wp10-link:hover {
  color: var(--copper-dark);
  background: #fff;
  border-color: var(--line);
}

.wp10-cta {
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--copper);
  color: #fff;
  border: none;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.wp10-cta:hover {
  transform: translateY(-1px);
}

.wp10-burger {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 6px;
}

.wp10-mobile {
  display: none;
  flex-direction: column;
  gap: 10px;
  padding: 12px 0 18px;
}

.wp10-mobile.show {
  display: flex;
}

.hero {
  padding: 80px 0 60px;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border-radius: 999px;
  padding: 6px 14px;
  border: 1px solid var(--line);
  color: var(--copper);
  font-size: 13px;
}

.hero h1 {
  font-size: clamp(32px, 4vw, 52px);
  margin: 16px 0;
  line-height: 1.2;
}

.hero p {
  color: var(--muted);
  font-size: 16px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.btn {
  border-radius: 12px;
  padding: 12px 20px;
  border: none;
  cursor: pointer;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-copper {
  background: var(--copper);
  color: #fff;
  box-shadow: 0 18px 36px rgba(194, 65, 12, 0.25);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
}

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

.hero-panel {
  background: #fff;
  border-radius: 24px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 24px;
}

.hero-panel-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.hero-panel-title {
  font-weight: 700;
}

.hero-panel-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.panel-card {
  background: var(--paper);
  border-radius: 16px;
  padding: 14px;
  border: 1px solid var(--line);
}

.panel-card h4 {
  margin: 0 0 6px;
  font-size: 14px;
  color: var(--muted);
}

.panel-card strong {
  font-size: 18px;
}

.stats-strip {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.stat-item {
  background: #fff;
  border-radius: 16px;
  padding: 16px;
  border: 1px solid var(--line);
}

.stat-item span {
  color: var(--muted);
  font-size: 13px;
}

.stat-item strong {
  display: block;
  font-size: 22px;
  margin-bottom: 6px;
}

.section {
  padding: 70px 0;
}

.section.alt {
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 36px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--copper);
  background: #fff;
  width: fit-content;
  font-size: 13px;
}

.section-head h2 {
  font-size: clamp(26px, 3vw, 38px);
  margin: 0;
}

.section-head p {
  margin: 0;
  color: var(--muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.feature-card {
  background: #fff;
  border-radius: 20px;
  border: 1px solid var(--line);
  padding: 18px;
  box-shadow: var(--shadow);
}

.feature-card h3 {
  margin: 12px 0 8px;
}

.feature-card p {
  color: var(--muted);
  margin: 0;
  font-size: 14px;
}

.feature-deep {
  margin-top: 40px;
  display: grid;
  gap: 24px;
}

.deep-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  align-items: center;
  background: #fff;
  border-radius: 24px;
  border: 1px solid var(--line);
  padding: 24px;
}

.deep-row h4 {
  margin: 0 0 8px;
  font-size: 20px;
}

.deep-row ul {
  padding-left: 18px;
  margin: 12px 0 0;
  color: var(--muted);
}

.deep-panel {
  background: var(--paper);
  border-radius: 18px;
  padding: 18px;
  border: 1px solid var(--line);
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.platform-card {
  background: #fff;
  border-radius: 22px;
  border: 1px solid var(--line);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.platform-card h3 {
  margin: 0;
}

.platform-meta {
  font-size: 13px;
  color: var(--muted);
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.review-card {
  background: #fff;
  border-radius: 18px;
  border: 1px solid var(--line);
  padding: 18px;
}

.review-stars {
  display: flex;
  gap: 4px;
  margin-bottom: 10px;
}

.review-card p {
  color: var(--muted);
  margin: 0 0 14px;
}

.review-user {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}

.avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--copper), var(--sun));
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.security-card {
  background: #fff;
  border-radius: 18px;
  border: 1px solid var(--line);
  padding: 18px;
}

.compare-table {
  margin-top: 28px;
  overflow-x: auto;
}

.compare-table table {
  width: 100%;
  border-collapse: collapse;
  min-width: 680px;
}

.compare-table th,
.compare-table td {
  border: 1px solid var(--line);
  padding: 12px;
  text-align: left;
  font-size: 14px;
}

.compare-table th {
  background: var(--paper);
}

.version-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.version-card {
  background: #fff;
  border-radius: 22px;
  border: 1px solid var(--line);
  padding: 22px;
}

.version-card.featured {
  border: 2px solid var(--copper);
  box-shadow: 0 20px 40px rgba(194, 65, 12, 0.18);
}

.version-card ul {
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}

.faq-q {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 14px 16px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-a {
  padding: 0 16px 16px;
  color: var(--muted);
  display: none;
}

.faq-item.open .faq-a {
  display: block;
}

.download-hero {
  padding: 70px 0 50px;
}

.dl-main {
  background: #fff;
  border-radius: 26px;
  border: 1px solid var(--line);
  padding: 28px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 18px;
}

.dl-info {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  align-items: center;
}

.dl-badge {
  background: var(--paper);
  border-radius: 999px;
  padding: 6px 14px;
  color: var(--copper);
  border: 1px solid var(--line);
  font-size: 13px;
}

.dl-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.step-card {
  background: #fff;
  border-radius: 18px;
  border: 1px solid var(--line);
  padding: 16px;
}

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

.req-table th,
.req-table td {
  border: 1px solid var(--line);
  padding: 10px;
  text-align: left;
  font-size: 14px;
}

.log-list {
  display: grid;
  gap: 16px;
}

.log-item {
  background: #fff;
  border-radius: 18px;
  border: 1px solid var(--line);
  padding: 16px;
}

.safe-banner {
  background: #fff;
  border-radius: 20px;
  border: 1px solid var(--line);
  padding: 20px;
  display: grid;
  gap: 12px;
}

.footer {
  padding: 30px 0 40px;
  border-top: 1px solid var(--line);
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@media (max-width: 920px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .wp10-links {
    display: none;
  }

  .wp10-burger {
    display: inline-flex;
  }
}

@media (max-width: 640px) {
  .hero {
    padding: 60px 0 40px;
  }

  .section {
    padding: 56px 0;
  }
}