:root {
  --bg: #0f1020;
  --bg-soft: #171934;
  --card: rgba(255, 248, 240, 0.08);
  --card-strong: rgba(255, 248, 240, 0.12);
  --line: rgba(255, 255, 255, 0.12);
  --text: #f7f2e9;
  --muted: #b8b2cc;
  --accent: #ff8e6f;
  --accent-2: #8f7dff;
  --accent-3: #ffcf63;
  --accent-4: #63d9d1;
  --shadow: 0 18px 45px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 0%, rgba(143, 125, 255, 0.3), transparent 32%),
    radial-gradient(circle at 85% 10%, rgba(255, 142, 111, 0.22), transparent 28%),
    linear-gradient(180deg, #101126 0%, #11142b 32%, #0c0d18 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: 0.55;
}

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

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

.wrap {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(8, 10, 22, 0.66);
  border-bottom: 1px solid var(--line);
}

.nav-wrap,
.footer-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-logo {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-copy strong {
  font-size: 1.05rem;
  letter-spacing: 0.5px;
}

.brand-copy small,
.eyebrow,
.site-footer p,
.section-head p,
.hero-points,
.stat-card span,
.review-card span,
.tip-card,
.phone-badge,
.phone-title,
.phone-screen p,
.phone-screen span,
.faq-panel p,
.check-list,
.disclaimer,
.lead {
  color: var(--muted);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.site-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: 0.25s ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.06);
}

.nav-cta,
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #ffb37c 100%);
  color: #1b1020 !important;
  font-weight: 700;
  box-shadow: 0 12px 30px rgba(255, 142, 111, 0.24);
}

.nav-cta,
.btn-primary.download-cta {
  background: linear-gradient(135deg, #a8f4d0 0%, #49dbad 100%);
  color: #073729 !important;
  border-color: #bdfbe0;
  box-shadow: 0 12px 30px rgba(73, 219, 173, 0.28);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 14px;
}

.hero,
.page-hero {
  position: relative;
  padding: 48px 0 26px;
}

.hero-grid,
.page-hero-grid,
.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.88fr);
  gap: 24px;
  align-items: center;
}

.hero-copy,
.page-hero-card,
.quote-card,
.article-card,
.card,
.preview-card,
.review-card,
.entry-card,
.step-card,
.tip-card,
.essay-card {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.05));
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 34px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.76rem;
}

.hero h1,
.page-hero h1,
.section-head h2,
.article-card h2 {
  margin: 14px 0 10px;
  line-height: 1.06;
}

.hero h1,
.page-hero h1 {
  font-size: clamp(2.15rem, 4vw, 4.6rem);
  max-width: 11ch;
}

.lead {
  font-size: 1.04rem;
  line-height: 1.85;
  max-width: 62ch;
}

.hero-actions,
.footer-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin: 24px 0 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.06);
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover,
.entry-card:hover,
.preview-card:hover,
.review-card:hover,
.step-card:hover {
  transform: translateY(-2px);
}

.btn-ghost {
  color: var(--text);
}

.hero-points {
  list-style: none;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding: 0;
  margin: 0;
}

.hero-points li {
  padding: 9px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
}

.hero-panel {
  display: grid;
  gap: 16px;
}

.phone-frame {
  padding: 16px;
  border-radius: 34px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.05)),
    linear-gradient(180deg, rgba(21, 22, 44, 0.96), rgba(12, 15, 29, 0.96));
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow);
}

.phone-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 6px 14px;
}

.phone-dots {
  width: 46px;
  height: 12px;
  border-radius: 999px;
  background: linear-gradient(90deg, #ff8e6f, #8f7dff, #63d9d1);
}

.phone-screen {
  display: grid;
  gap: 12px;
  padding: 18px;
  border-radius: 24px;
  min-height: 420px;
  background:
    radial-gradient(circle at 30% 10%, rgba(255, 207, 99, 0.25), transparent 32%),
    linear-gradient(180deg, #181a33 0%, #11152b 100%);
}

.mini-stat,
.mini-card {
  border-radius: 18px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.06);
}

.mini-card strong,
.mini-stat strong {
  display: block;
  margin-top: 4px;
}

.accent-a {
  background: linear-gradient(135deg, rgba(255, 142, 111, 0.28), rgba(255, 255, 255, 0.05));
}

.accent-b {
  background: linear-gradient(135deg, rgba(143, 125, 255, 0.28), rgba(255, 255, 255, 0.05));
}

.accent-c {
  background: linear-gradient(135deg, rgba(99, 217, 209, 0.24), rgba(255, 255, 255, 0.05));
}

.hero-signal {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-signal span {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
}

.strip {
  padding: 8px 0 18px;
}

.strip-grid,
.feature-grid,
.preview-grid,
.review-grid,
.tips-grid,
.entry-grid,
.steps-grid,
.feature-essay-grid {
  display: grid;
  gap: 16px;
}

.strip-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stat-card {
  padding: 20px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.06);
}

.stat-card strong {
  display: block;
  font-size: 2rem;
  color: var(--text);
}

.section {
  padding: 26px 0;
}

.section-alt {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.05));
  border-block: 1px solid rgba(255, 255, 255, 0.06);
}

.section-head {
  margin-bottom: 18px;
}

.section-head h2,
.article-card h2 {
  font-size: clamp(1.5rem, 2.2vw, 2.4rem);
}

.feature-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.feature-card {
  padding: 22px;
}

.feature-card h3,
.essay-card h3 {
  margin-top: 0;
}

.preview-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.preview-card {
  overflow: hidden;
}

.preview-card img {
  width: 100%;
  aspect-ratio: 5 / 6;
  object-fit: cover;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03));
}

.preview-card figcaption {
  padding: 14px 16px 16px;
  color: var(--muted);
}

.entry-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.entry-card {
  padding: 22px;
  display: grid;
  gap: 8px;
}

.entry-card:last-child:nth-child(odd) {
  grid-column: 1 / -1;
}

.quote-card {
  padding: 24px;
}

.quote-card blockquote {
  margin: 14px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--accent);
  color: var(--text);
}

.review-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.review-card {
  padding: 24px;
}

.review-card p {
  margin-top: 0;
  line-height: 1.8;
}

.review-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.review-meta time {
  color: var(--muted);
  font-size: 0.85rem;
}

.faq-teaser .teaser-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(143, 125, 255, 0.17), rgba(255, 142, 111, 0.16));
}

.site-footer {
  padding: 28px 0 34px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.disclaimer {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding-top: 12px;
  font-size: 0.92rem;
}

.card {
  padding: 22px;
}

.page-hero-card ul,
.check-list {
  list-style: none;
  padding: 0;
  margin: 14px 0 18px;
}

.check-list li {
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.step-card {
  padding: 20px;
}

.steps-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 16px;
  background: rgba(255, 142, 111, 0.16);
  color: var(--accent-3);
  font-weight: 700;
}

.article-card {
  padding: 26px;
}

.article-card p {
  line-height: 1.9;
  color: var(--muted);
}

.tips-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.tip-card {
  padding: 18px 16px;
  line-height: 1.7;
}

.feature-essay-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.essay-card {
  padding: 22px;
}

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

.faq-item {
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.05);
}

.faq-item button {
  width: 100%;
  padding: 18px 20px;
  background: transparent;
  border: 0;
  color: var(--text);
  text-align: left;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
}

.faq-panel {
  display: none;
  padding: 0 20px 18px;
}

.faq-item.is-open .faq-panel {
  display: block;
}

.page-hero {
  padding-bottom: 12px;
}

.page-hero-card {
  padding: 24px;
}

@media (max-width: 1024px) {
  .hero-grid,
  .page-hero-grid,
  .split-layout {
    grid-template-columns: 1fr;
  }

  .feature-grid,
  .review-grid,
  .tips-grid,
  .steps-grid,
  .strip-grid,
  .feature-essay-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .wrap {
    width: min(1180px, calc(100% - 22px));
  }

  .nav-wrap {
    flex-wrap: wrap;
  }

  .menu-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .site-nav {
    display: none;
    width: 100%;
    padding: 10px 0 6px;
  }

  .site-nav.is-open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav a {
    width: 100%;
  }

  .hero,
  .page-hero {
    padding-top: 28px;
  }

  .hero-copy {
    padding: 24px;
  }

  .hero h1,
  .page-hero h1 {
    max-width: none;
    font-size: clamp(2rem, 10vw, 3rem);
  }

  .feature-grid,
  .review-grid,
  .tips-grid,
  .steps-grid,
  .strip-grid,
  .preview-grid,
  .entry-grid,
  .feature-essay-grid {
    grid-template-columns: 1fr;
  }

  .faq-teaser .teaser-box,
  .footer-grid {
    flex-direction: column;
    align-items: flex-start;
  }

  .phone-screen {
    min-height: 320px;
  }
}