/* LiteSugar 官方网站样式 */

:root {
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --teal: #62c7b2;
  --bg: #f0f7ff;
  --bg-gradient: linear-gradient(165deg, #e8f4fd 0%, #f6faf9 45%, #eef6ff 100%);
  --card: rgba(255, 255, 255, 0.72);
  --card-border: rgba(255, 255, 255, 0.85);
  --text: #1e3a5f;
  --text-secondary: #6b7280;
  --shadow: 0 8px 32px rgba(30, 58, 95, 0.08);
  --radius: 16px;
  --max-width: 960px;
  --max-width-wide: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg-gradient);
  min-height: 100vh;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
}

.container {
  width: min(100% - 32px, var(--max-width));
  margin: 0 auto;
}

/* 顶栏 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(255, 255, 255, 0.65);
  border-bottom: 1px solid rgba(255, 255, 255, 0.8);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  flex-shrink: 0;
  overflow: hidden;
  display: block;
}

.brand-icon-lg {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  margin: 0 auto 16px;
}

.brand-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: inherit;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.92rem;
  text-decoration: none;
}

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

.lang-switch {
  display: flex;
  gap: 6px;
  font-size: 0.82rem;
}

.lang-switch a {
  padding: 4px 8px;
  border-radius: 8px;
  color: var(--text-secondary);
  text-decoration: none;
}

.lang-switch a.active {
  background: rgba(59, 130, 246, 0.12);
  color: var(--primary);
  font-weight: 600;
}

/* 玻璃卡片 */
.glass-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Hero */
.hero {
  padding: 56px 0 40px;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(59, 130, 246, 0.1);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 2.75rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.hero p.lead {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 28px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.35);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.9);
  color: var(--text);
  border: 1px solid rgba(59, 130, 246, 0.2);
}

/* 功能区块 */
.section {
  padding: 24px 0 48px;
}

.section-title {
  text-align: center;
  font-size: 1.5rem;
  margin-bottom: 28px;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.feature-card {
  padding: 22px;
}

.feature-card .icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(59, 130, 246, 0.1);
  display: grid;
  place-items: center;
  font-size: 22px;
  margin-bottom: 14px;
}

.feature-card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.pro-banner {
  margin-top: 32px;
  padding: 28px;
  text-align: center;
}

.pro-banner h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.pro-banner p {
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 16px;
  font-size: 0.95rem;
}

.pro-tags {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(16, 185, 129, 0.12);
  color: #059669;
  font-size: 0.82rem;
  font-weight: 600;
}

/* Hero 双栏 + 主截图 */
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}

@media (min-width: 860px) {
  .hero-grid {
    grid-template-columns: 1fr minmax(220px, 280px);
  }

  .hero-grid .hero-copy {
    text-align: left;
  }

  .hero-grid .hero-actions {
    justify-content: flex-start;
  }

  .hero-grid .hero-copy .lead {
    max-width: none;
  }
}

.hero-grid .hero-copy .lead {
  margin-left: 0;
  margin-right: 0;
}

.hero-copy {
  text-align: center;
}

.hero-phone {
  justify-self: center;
  width: min(100%, 260px);
}

.hero-phone img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 28px;
  box-shadow: 0 20px 50px rgba(30, 58, 95, 0.18);
  border: 3px solid rgba(255, 255, 255, 0.9);
}

/* 应用截图横向滚动 */
.screenshots-section {
  padding: 8px 0 40px;
}

.screenshots-section .container-wide {
  width: min(100% - 32px, var(--max-width-wide));
  margin: 0 auto;
}

.screenshots-scroll {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 8px 4px 20px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.screenshots-scroll::-webkit-scrollbar {
  height: 6px;
}

.screenshots-scroll::-webkit-scrollbar-thumb {
  background: rgba(59, 130, 246, 0.25);
  border-radius: 999px;
}

.screenshot-card {
  flex: 0 0 auto;
  width: min(220px, 42vw);
  scroll-snap-align: start;
  text-align: center;
}

.screenshot-card img {
  width: 100%;
  height: auto;
  border-radius: 22px;
  box-shadow: var(--shadow);
  border: 2px solid rgba(255, 255, 255, 0.85);
  display: block;
}

.screenshot-card figcaption {
  margin-top: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.page-main {
  padding: 40px 0 64px;
}

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

.page-header h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  margin-bottom: 10px;
}

.page-meta {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.legal-content {
  padding: 32px;
}

.legal-content h2 {
  font-size: 1.15rem;
  margin: 28px 0 10px;
  color: var(--text);
}

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

.legal-content p,
.legal-content li {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 10px;
}

.legal-content ul {
  padding-left: 1.25rem;
  margin-bottom: 12px;
}

.legal-content strong {
  color: var(--text);
}

.disclaimer-box {
  margin-top: 28px;
  padding: 18px;
  border-radius: 12px;
  background: rgba(245, 158, 11, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.disclaimer-box p {
  margin-bottom: 6px;
}

/* 语言选择首页 */
.lang-hub {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 16px;
}

.lang-hub-card {
  padding: 40px 32px;
  text-align: center;
  max-width: 420px;
  width: 100%;
}

.lang-hub-card h1 {
  font-size: 1.75rem;
  margin-bottom: 8px;
}

.lang-hub-card p {
  color: var(--text-secondary);
  margin-bottom: 28px;
}

.lang-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.lang-options a {
  display: block;
  padding: 14px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(59, 130, 246, 0.15);
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}

.lang-options a:hover {
  border-color: var(--primary);
  color: var(--primary);
  text-decoration: none;
}

/* 页脚 */
.site-footer {
  padding: 32px 0 40px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.site-footer .footer-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.site-footer a {
  color: var(--text-secondary);
}

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

@media (max-width: 640px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .legal-content {
    padding: 22px 18px;
  }
}