/* SeeMe 静态站点样式 —— 配色与视觉参考 seeme-mobile */

:root {
  --primary: #7c6bc4;
  --primary-dark: #6658a8;
  --primary-light: #b8abe8;
  --primary-container: #ede8ff;
  --secondary: #a8c8e8;
  --secondary-container: #eaf4fb;
  --tertiary: #9490a0;
  --tertiary-container: #f0edf5;
  --background: #f8fbff;
  --surface: #ffffff;
  --surface-soft: #f7f5ff;
  --on-surface: #3d3a50;
  --on-surface-muted: #6e6a80;
  --on-primary: #ffffff;
  --error: #c83e5c;
  --success: #66c7a8;
  --gradient-start: #c4b5e8;
  --gradient-mid: #d6eaf8;
  --gradient-end: #ffffff;
  --shadow-xs: 0 2px 8px rgba(60, 58, 80, 0.06);
  --shadow-sm: 0 4px 16px rgba(60, 58, 80, 0.08);
  --shadow-md: 0 12px 32px rgba(60, 58, 80, 0.12);
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --radius-full: 999px;
  --max-width: 1160px;
  --header-height: 72px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--on-surface);
  background: var(--background);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

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

.section {
  padding: 80px 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin: 0 0 12px;
  color: var(--on-surface);
}

.section-subtitle {
  font-size: 1.05rem;
  text-align: center;
  color: var(--on-surface-muted);
  margin: 0 0 48px;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid rgba(124, 107, 196, 0.08);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
}

.logo-img {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  object-fit: cover;
  flex-shrink: 0;
}

.nav {
  display: flex;
  gap: 6px;
}

.nav-link {
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--on-surface-muted);
  transition: all 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
  background: var(--primary-container);
}

.mobile-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.mobile-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: var(--on-surface);
  border-radius: 2px;
}

/* Hero */
.hero {
  position: relative;
  padding: 110px 0 100px;
  background: linear-gradient(180deg, var(--gradient-start) 0%, var(--gradient-mid) 45%, var(--gradient-end) 100%);
  overflow: hidden;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: var(--radius-full);
  filter: blur(80px);
  opacity: 0.5;
  pointer-events: none;
}

.hero::before {
  width: 420px;
  height: 420px;
  background: var(--primary-light);
  top: -120px;
  right: -80px;
}

.hero::after {
  width: 360px;
  height: 360px;
  background: var(--secondary);
  bottom: -100px;
  left: -100px;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(124, 107, 196, 0.12);
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 24px;
  backdrop-filter: blur(6px);
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 20px;
  color: var(--on-surface);
}

.hero-title span {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--on-surface-muted);
  margin: 0 0 32px;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--on-primary);
  box-shadow: 0 8px 24px rgba(124, 107, 196, 0.35);
}

.btn-primary:hover {
  box-shadow: 0 12px 32px rgba(124, 107, 196, 0.42);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.85);
  color: var(--primary);
  border: 1px solid rgba(124, 107, 196, 0.18);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover {
  background: #ffffff;
  box-shadow: var(--shadow-sm);
}

.btn-large {
  padding: 16px 36px;
  font-size: 1.05rem;
}

.hero-visual {
  position: relative;
  display: grid;
  place-items: center;
}

.hero-frame {
  width: 480px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow-md), 0 0 0 10px rgba(255, 255, 255, 0.5);
  position: relative;
}

.hero-frame img {
  width: 100%;
  height: auto;
  display: block;
}

.hero-frame-tag {
  position: absolute;
  left: 18px;
  bottom: 18px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-full);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* Showcase */
.showcase-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  margin-bottom: 72px;
}

.showcase-item:last-child {
  margin-bottom: 0;
}

.showcase-item.reverse .showcase-media {
  order: 2;
}

.showcase-media img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.showcase-tag {
  display: inline-block;
  padding: 6px 14px;
  background: var(--primary-container);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.showcase-body h3 {
  font-size: 1.6rem;
  font-weight: 700;
  margin: 0 0 14px;
  color: var(--on-surface);
}

.showcase-body p {
  font-size: 1rem;
  color: var(--on-surface-muted);
  margin: 0;
}

.showcase-points {
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
  display: grid;
  gap: 12px;
}

.showcase-points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--on-surface-muted);
}

.showcase-points li::before {
  content: "✓";
  color: var(--success);
  font-weight: 700;
  flex-shrink: 0;
}

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

.feature-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  cursor: pointer;
  aspect-ratio: 16 / 10;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.feature-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.feature-card:hover img {
  transform: scale(1.05);
}

.feature-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(61, 58, 80, 0.05) 0%, rgba(61, 58, 80, 0.55) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 22px;
  color: #fff;
}

.feature-card-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin: 0 0 4px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.feature-card-desc {
  font-size: 0.92rem;
  margin: 0;
  opacity: 0.92;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

/* Highlights */
.highlights {
  background: var(--surface-soft);
}

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

.highlight-item {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-xs);
  border: 1px solid rgba(124, 107, 196, 0.08);
}

.highlight-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary-container), var(--secondary-container));
  display: grid;
  place-items: center;
  color: var(--primary);
  font-size: 1.5rem;
  margin-bottom: 18px;
}

.highlight-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 8px;
}

.highlight-text {
  font-size: 0.95rem;
  color: var(--on-surface-muted);
  margin: 0;
}

/* Social / Download / Contact shared */
.page-hero {
  padding: 80px 0 70px;
  background: linear-gradient(180deg, var(--gradient-start) 0%, var(--gradient-mid) 55%, var(--gradient-end) 100%);
  text-align: center;
}

.page-hero .section-title {
  margin-bottom: 12px;
}

.page-hero .section-subtitle {
  margin-bottom: 0;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.info-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(124, 107, 196, 0.08);
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.info-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.info-card h3 {
  font-size: 1.25rem;
  margin: 0 0 10px;
}

.info-card p {
  font-size: 0.95rem;
  color: var(--on-surface-muted);
  margin: 0 0 20px;
}

.qr-placeholder,
.qr-image {
  width: 180px;
  height: 180px;
  margin: 0 auto 16px;
  border-radius: var(--radius-md);
  display: block;
}

.qr-placeholder {
  background: var(--tertiary-container);
  border: 2px dashed rgba(124, 107, 196, 0.25);
  display: grid;
  place-items: center;
  color: var(--tertiary);
  font-size: 0.9rem;
}

.qr-image {
  object-fit: cover;
}

.account-id {
  display: inline-block;
  padding: 8px 16px;
  background: var(--primary-container);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
}

/* Download buttons */
.download-options {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
}

.store-badge,
.store-btn {
  width: 200px;
  height: 72px;
  box-sizing: border-box;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  overflow: hidden;
  border-radius: var(--radius-md);
  transition: transform 0.15s ease, box-shadow 0.2s ease;
}

.store-badge img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: fill;
}

.store-badge:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.store-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 24px;
  border-radius: var(--radius-md);
  background: var(--on-surface);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: default;
}

.store-btn-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.store-btn.mini-program {
  background: linear-gradient(135deg, #07c160, #05a350);
}

.store-btn.app-store {
  background: linear-gradient(135deg, #0d96f6, #0a7bc9);
}

.store-btn.android {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

.store-btn.disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* Contact */
.contact-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  box-shadow: var(--shadow-xs);
  border: 1px solid rgba(124, 107, 196, 0.08);
}

.contact-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  background: var(--primary-container);
  color: var(--primary);
  display: grid;
  place-items: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.contact-body h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--tertiary);
  margin: 0 0 4px;
}

.contact-body p {
  font-size: 1.1rem;
  margin: 0;
  color: var(--on-surface);
}

.contact-body a {
  color: var(--primary);
}

/* Policy pages */
.policy-content {
  max-width: 800px;
  margin: 0 auto;
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  box-shadow: var(--shadow-sm);
}

.policy-content h1 {
  font-size: 1.8rem;
  text-align: center;
  margin: 0 0 8px;
}

.policy-content .effective-date {
  text-align: center;
  color: var(--on-surface-muted);
  font-size: 0.9rem;
  margin-bottom: 36px;
}

.policy-content h2 {
  font-size: 1.15rem;
  margin: 28px 0 12px;
  color: var(--primary-dark);
}

.policy-content h3 {
  font-size: 1rem;
  margin: 20px 0 10px;
  color: var(--on-surface);
}

.policy-content p {
  font-size: 0.95rem;
  color: var(--on-surface-muted);
  margin: 0 0 14px;
}

.policy-content ul,
.policy-content ol {
  margin: 0 0 16px 24px;
  padding: 0;
  font-size: 0.95rem;
  color: var(--on-surface-muted);
}

.policy-content ul {
  list-style: disc;
}

.policy-content li {
  margin: 6px 0;
}

.policy-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 0.85rem;
  color: var(--on-surface-muted);
}

.policy-content th,
.policy-content td {
  border: 1px solid rgba(124, 107, 196, 0.15);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

.policy-content th {
  background: var(--surface-soft);
  color: var(--on-surface);
  font-weight: 600;
}

.policy-content .important {
  color: var(--on-surface);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: var(--primary-light);
}

.policy-content a {
  color: var(--primary);
  text-decoration: underline;
  word-break: break-all;
}

.policy-content .agreement-meta,
.policy-content .agreement-footer-meta {
  text-align: center;
  color: var(--on-surface-muted);
  font-size: 0.9rem;
}

.policy-content .agreement-meta p,
.policy-content .agreement-footer-meta p {
  margin: 0;
}

.policy-content .no-indent {
  text-indent: 0;
}

/* Footer */
.footer {
  background: var(--surface);
  border-top: 1px solid rgba(124, 107, 196, 0.08);
  padding: 56px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand {
  max-width: 280px;
}

.footer-brand .logo {
  margin-bottom: 14px;
}

.footer-brand p {
  font-size: 0.92rem;
  color: var(--on-surface-muted);
  margin: 0;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0 0 16px;
  color: var(--on-surface);
}

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

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  font-size: 0.92rem;
  color: var(--on-surface-muted);
  transition: color 0.2s ease;
}

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

.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding-top: 28px;
  border-top: 1px solid rgba(124, 107, 196, 0.08);
  font-size: 0.85rem;
  color: var(--tertiary);
  text-align: center;
}

.footer-bottom a {
  color: var(--tertiary);
}

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

.footer-bottom .filing-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 6px 10px;
}

.footer-bottom .filing-links span {
  color: var(--tertiary);
}

/* Responsive */
@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }

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

  .hero-visual {
    order: -1;
  }

  .hero-frame {
    width: 100%;
    max-width: 520px;
  }

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

  .showcase-item,
  .showcase-item.reverse {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .showcase-item.reverse .showcase-media {
    order: 0;
  }

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

@media (max-width: 720px) {
  .header {
    --header-height: 64px;
  }

  .nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(14px);
    padding: 16px 24px;
    gap: 4px;
    border-bottom: 1px solid rgba(124, 107, 196, 0.08);
    box-shadow: var(--shadow-sm);
  }

  .nav.open {
    display: flex;
  }

  .nav-link {
    padding: 12px 16px;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero {
    padding: 70px 0 60px;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .section {
    padding: 56px 0;
  }

  .section-title {
    font-size: 1.6rem;
  }

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .policy-content {
    padding: 32px 24px;
  }
}