/* 爪爪出片 官网 — 共享样式 */
:root {
  --bg: #faf9f7;
  --bg-elevated: #ffffff;
  --text: #0f172a;
  --text-muted: #64748b;
  --text-soft: #94a3b8;
  --accent: #e85d4c;
  --accent-dark: #c94a3b;
  --accent-soft: #fff0ed;
  --border: #e8e6e3;
  --footer-bg: #1a1f2e;
  --footer-text: #cbd5e1;
  --radius: 16px;
  --shadow: 0 12px 40px rgba(15, 23, 42, 0.08);
  --max: 1080px;
  --legal-max: 720px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

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

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

/* —— 顶栏 —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 249, 247, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-header__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.02em;
}

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

.brand__icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent) 0%, #f4a261 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  line-height: 1;
  box-shadow: 0 4px 12px rgba(232, 93, 76, 0.35);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--text);
}

/* —— 首页 Hero —— */
.hero {
  padding: 72px 24px 88px;
  text-align: center;
  background: radial-gradient(ellipse 80% 60% at 50% -10%, var(--accent-soft), transparent);
}

.hero__inner {
  max-width: var(--max);
  margin: 0 auto;
}

.hero__badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.hero__tagline {
  margin: 0 auto 32px;
  max-width: 520px;
  font-size: clamp(17px, 2.5vw, 20px);
  color: var(--text-muted);
  line-height: 1.7;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--text);
  color: #fff !important;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  box-shadow: var(--shadow);
}

.hero__cta:hover {
  background: #334155;
  color: #fff !important;
}

.hero__note {
  margin-top: 20px;
  font-size: 13px;
  color: var(--text-soft);
}

/* —— 功能区块 —— */
.section {
  padding: 64px 24px;
}

.section__inner {
  max-width: var(--max);
  margin: 0 auto;
}

.section__title {
  text-align: center;
  margin: 0 0 12px;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.section__subtitle {
  text-align: center;
  margin: 0 auto 48px;
  max-width: 480px;
  color: var(--text-muted);
  font-size: 16px;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
  transition: transform 0.25s, box-shadow 0.25s;
}

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

.feature-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
}

.feature-card h3 {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
}

.feature-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.65;
}

/* —— 简介条 —— */
.about-strip {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about-strip__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 56px 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

@media (max-width: 768px) {
  .about-strip__inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

.about-strip h2 {
  margin: 0 0 16px;
  font-size: 26px;
  font-weight: 700;
}

.about-strip p {
  margin: 0 0 12px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.75;
}

.about-strip__visual {
  aspect-ratio: 4/3;
  border-radius: var(--radius);
  background: linear-gradient(145deg, #fff5f3 0%, #fde8e4 50%, #f8fafc 100%);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 64px;
  opacity: 0.9;
}

/* —— 法律文档页 —— */
.legal-page {
  padding: 48px 24px 80px;
}

.legal-page__inner {
  max-width: var(--legal-max);
  margin: 0 auto;
}

.legal-page h1 {
  margin: 0 0 8px;
  font-size: 28px;
  font-weight: 800;
}

.legal-page .meta {
  color: var(--text-soft);
  font-size: 14px;
  margin: 0 0 24px;
}

.legal-notice {
  background: #e8f5ef;
  border-radius: var(--radius);
  padding: 16px 20px;
  color: #166534;
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 28px;
}

.legal-page h2 {
  font-size: 18px;
  font-weight: 700;
  margin: 32px 0 12px;
  color: #1e293b;
}

.legal-page h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 20px 0 8px;
  color: #334155;
}

.legal-page p {
  margin: 10px 0;
  color: #334155;
  font-size: 15px;
  line-height: 1.75;
}

.legal-page ul {
  margin: 10px 0;
  padding-left: 22px;
  color: #334155;
}

.legal-page li {
  margin: 8px 0;
  font-size: 15px;
  line-height: 1.7;
}

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

.legal-page .legal-footer-note {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 14px;
}

/* —— 页脚 —— */
.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: 48px 24px 32px;
  margin-top: auto;
}

.site-footer a {
  color: #e2e8f0;
}

.site-footer a:hover {
  color: #fff;
}

.site-footer__inner {
  max-width: var(--max);
  margin: 0 auto;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

@media (max-width: 768px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .site-nav {
    display: none;
  }
}

.site-footer__brand {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

.site-footer__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--footer-text);
  margin: 0;
}

.site-footer h4 {
  margin: 0 0 14px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #94a3b8;
}

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

.site-footer li {
  margin: 8px 0;
  font-size: 14px;
}

.site-footer__beian {
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
  line-height: 1.9;
  color: #94a3b8;
}

.site-footer__beian a {
  color: #94a3b8;
}

.site-footer__beian a:hover {
  color: #e2e8f0;
}

.site-footer__copy {
  margin-top: 16px;
  font-size: 12px;
  color: #64748b;
}