/* GW云洞机场导航 — gw-yd.lol
   紫罗兰 + 霓虹青，游戏/娱乐调性 */

:root {
  --bg: #1A1033;
  --bg-soft: #251747;
  --bg-softer: #2E1D57;
  --bg-alt: #130B26;
  --border: rgba(167, 139, 250, 0.28);
  --border-soft: rgba(237, 233, 254, 0.12);
  --text: #EDE9FE;
  --text-dim: #B4A8D6;
  --accent: #A78BFA;
  --accent-light: #C4B5FD;
  --radius: 16px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }

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

/* ---------- Nav ---------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(26, 16, 51, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 8px; font-size: 20px; font-weight: 800; }
.brand svg { width: 26px; height: 26px; }
.brand-cn { color: var(--text); }
.brand-en { color: var(--accent-light); font-weight: 600; font-size: 14px; }

.nav-links { display: flex; gap: 30px; align-items: center; }
.nav-links a { color: var(--text-dim); font-size: 15px; transition: color .2s; }
.nav-links a:hover { color: var(--accent-light); }

.nav-actions { display: flex; align-items: center; gap: 12px; }
.mobile-menu { display: none; }

.btn {
  display: inline-block;
  padding: 11px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .15s, box-shadow .15s, background .15s;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--accent); color: #1B1033; box-shadow: 0 8px 20px rgba(167, 139, 250, 0.28); }
.btn-primary:hover { background: var(--accent-light); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border-soft); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-light); }
.btn-block { display: block; width: 100%; text-align: center; }

.burger { display: none; width: 26px; height: 20px; position: relative; cursor: pointer; }
.burger span { position: absolute; left: 0; width: 100%; height: 2px; background: var(--text); border-radius: 2px; }
.burger span:nth-child(1) { top: 0; }
.burger span:nth-child(2) { top: 9px; }
.burger span:nth-child(3) { top: 18px; }
#nav-toggle { display: none; }

/* ---------- Hero ---------- */
.hero { padding: 84px 0 60px; }
.hero-inner { text-align: center; max-width: 780px; margin: 0 auto; }
.promo-tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(167, 139, 250, 0.14);
  border: 1px solid var(--border);
  color: var(--accent-light);
  font-size: 13px; font-weight: 700;
  padding: 7px 18px; border-radius: 999px; margin-bottom: 22px;
}
.hero h1 { font-size: 38px; line-height: 1.42; margin: 0 0 20px; color: var(--text); }
.hero h1 span { color: var(--accent-light); }
.hero p.sub { font-size: 16.5px; color: var(--text-dim); margin: 0 0 34px; }
.hero-ctas { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-ctas .btn { padding: 14px 30px; font-size: 15px; }

/* ---------- Section shared ---------- */
section { padding: 64px 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 44px; }
.section-head h2 { font-size: 27px; margin: 0 0 12px; }
.section-head p { color: var(--text-dim); margin: 0; font-size: 15px; }
.eyebrow { display: inline-block; font-size: 13px; color: var(--accent-light); letter-spacing: 1.5px; margin-bottom: 10px; font-weight: 700; }

/* ---------- Advantages ---------- */
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.adv-card { background: var(--bg-soft); border: 1px solid var(--border-soft); border-radius: var(--radius); padding: 30px 26px; }
.adv-card .icon {
  width: 46px; height: 46px; border-radius: 50%;
  background: rgba(167, 139, 250, 0.16);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px; color: var(--accent-light);
}
.adv-card h3 { font-size: 17px; margin: 0 0 8px; }
.adv-card p { font-size: 14px; color: var(--text-dim); margin: 0; }

.stream-row {
  margin-top: 22px; background: var(--bg-soft); border: 1px solid var(--border-soft);
  border-radius: var(--radius); padding: 24px 26px;
  display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between;
}
.stream-row .label { font-size: 14px; color: var(--text-dim); font-weight: 600; }
.pill-list { display: flex; gap: 10px; flex-wrap: wrap; }
.pill { font-size: 13px; background: rgba(237,233,254,0.06); border: 1px solid var(--border-soft); padding: 6px 15px; border-radius: 999px; color: var(--text); }

/* ---------- Pricing ---------- */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.price-card {
  background: var(--bg-soft); border: 1px solid var(--border-soft); border-radius: var(--radius);
  padding: 28px 24px; display: flex; flex-direction: column; position: relative;
}
.price-card.recommend { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.price-card .badge {
  position: absolute; top: -13px; right: 22px; background: var(--accent); color: #1B1033;
  font-size: 12px; font-weight: 800; padding: 5px 14px; border-radius: 999px;
}
.price-card h3 { font-size: 18px; margin: 0 0 4px; }
.price-card .cap { font-size: 13px; color: var(--text-dim); margin-bottom: 16px; }
.price-table { width: 100%; border-collapse: collapse; margin-bottom: 20px; }
.price-table td { padding: 7px 0; font-size: 13.5px; border-bottom: 1px dashed var(--border-soft); }
.price-table td.period { color: var(--text-dim); }
.price-table td.price { text-align: right; }
.price-table .now { color: var(--accent-light); font-weight: 800; }
.price-table .old { color: var(--text-dim); text-decoration: line-through; font-size: 12px; margin-left: 6px; }
.price-card .foot { margin-top: auto; }
.price-note { font-size: 12px; color: var(--text-dim); margin-top: 6px; text-align: center; }

.flow-pack-row { margin-top: 22px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.flow-pack {
  background: var(--bg-soft); border: 1px solid var(--border-soft); border-radius: var(--radius);
  padding: 22px 24px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
}
.flow-pack .name { font-weight: 700; }
.flow-pack .desc { font-size: 13px; color: var(--text-dim); }

/* ---------- Why choose ---------- */
.why-block { margin-bottom: 28px; }
.why-card { background: var(--bg-soft); border: 1px solid var(--border-soft); border-radius: var(--radius); padding: 34px; }
.why-card h3 { font-size: 20px; margin: 0 0 10px; text-align: center; }
.why-card > p.intro { color: var(--text-dim); font-size: 14.5px; margin: 0 0 30px; text-align: center; }

/* step flow */
.step-flow { display: flex; gap: 20px; position: relative; }
.step-flow::before {
  content: "";
  position: absolute;
  top: 24px; left: 12%; right: 12%;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--border) 0 8px, transparent 8px 16px);
  z-index: 0;
}
.step { flex: 1; text-align: center; position: relative; z-index: 1; }
.step .num {
  width: 48px; height: 48px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #1B1033; font-weight: 800; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
}
.step h4 { font-size: 15.5px; margin: 0 0 8px; }
.step p { font-size: 13.5px; color: var(--text-dim); margin: 0; padding: 0 6px; }

/* do / dont */
.dodont-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.dodont-col { border-radius: 12px; padding: 22px 24px; }
.dodont-col.do { background: rgba(167, 139, 250, 0.12); border: 1px solid var(--border); }
.dodont-col.dont { background: rgba(237, 233, 254, 0.04); border: 1px solid var(--border-soft); }
.dodont-col .dd-title { font-size: 14.5px; font-weight: 700; margin-bottom: 14px; }
.dodont-col.do .dd-title { color: var(--accent-light); }
.dodont-col.dont .dd-title { color: var(--text-dim); }
.dodont-col ul li { display: flex; gap: 10px; align-items: flex-start; font-size: 13.5px; margin-bottom: 12px; }
.dodont-col ul li:last-child { margin-bottom: 0; }
.dodont-col.do ul li .mark { color: var(--accent-light); font-weight: 800; }
.dodont-col.dont ul li .mark { color: var(--text-dim); font-weight: 800; }
.dodont-col.dont ul li { color: var(--text-dim); }

/* ---------- Bottom CTA ---------- */
.cta-band {
  background: linear-gradient(135deg, rgba(167,139,250,0.16), rgba(167,139,250,0.03));
  border: 1px solid var(--border); border-radius: 22px; padding: 48px 32px; text-align: center;
}
.cta-band h2 { font-size: 25px; margin: 0 0 12px; }
.cta-band p { color: var(--text-dim); margin: 0 0 26px; }

/* ---------- Testimonials ---------- */
.marquee-wrap {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track { display: flex; gap: 18px; width: max-content; animation: scroll-left 45s linear infinite; }
.marquee-track:hover { animation-play-state: paused; }
@keyframes scroll-left { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.review-card { width: 300px; flex: 0 0 auto; background: var(--bg-soft); border: 1px solid var(--border-soft); border-radius: var(--radius); padding: 22px; }
.review-card .stars { color: var(--accent-light); font-size: 14px; margin-bottom: 10px; letter-spacing: 2px; }
.review-card p { font-size: 14px; color: var(--text); margin: 0 0 14px; }
.review-card .who { font-size: 12.5px; color: var(--text-dim); }
.review-disclaimer { text-align: center; font-size: 12px; color: var(--text-dim); margin-top: 14px; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 780px; margin: 0 auto; }
.faq-item { background: var(--bg-soft); border: 1px solid var(--border-soft); border-radius: 12px; padding: 6px 22px; margin-bottom: 12px; }
.faq-item summary { cursor: pointer; padding: 17px 0; font-weight: 700; font-size: 15px; list-style: none; position: relative; padding-right: 30px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 0; top: 15px; font-size: 20px; color: var(--accent-light); transition: transform .2s; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { color: var(--text-dim); font-size: 14px; margin: 0 0 18px; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--border); padding: 52px 0 30px; background: var(--bg-alt); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; margin-bottom: 32px; }
.footer-col h4 { font-size: 14px; margin: 0 0 14px; color: var(--text); }
.footer-col a, .footer-col p { font-size: 13.5px; color: var(--text-dim); }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a:hover { color: var(--accent-light); }
.footer-seo { font-size: 13px; color: var(--text-dim); border-top: 1px solid var(--border-soft); padding-top: 24px; margin-bottom: 24px; line-height: 1.9; }
.friend-links { display: flex; flex-wrap: wrap; gap: 10px 18px; border-top: 1px solid var(--border-soft); padding-top: 22px; margin-bottom: 18px; }
.friend-links span.label { color: var(--text-dim); font-size: 12.5px; margin-right: 6px; }
.friend-links a { font-size: 13px; color: var(--text-dim); }
.friend-links a:hover { color: var(--accent-light); }
.copyright { font-size: 12.5px; color: var(--text-dim); text-align: center; }

/* ---------- Simple content pages ---------- */
.page-hero { padding: 54px 0 20px; }
.page-hero h1 { font-size: 30px; margin: 0 0 10px; }
.breadcrumb { font-size: 13px; color: var(--text-dim); margin-bottom: 16px; }
.breadcrumb a { color: var(--accent-light); }
.content-block { background: var(--bg-soft); border: 1px solid var(--border-soft); border-radius: var(--radius); padding: 36px; margin: 24px 0; }
.content-block h2 { font-size: 20px; margin: 28px 0 12px; }
.content-block h2:first-child { margin-top: 0; }
.content-block p, .content-block li { color: var(--text-dim); font-size: 14.5px; }
.content-block ul { padding-left: 20px; list-style: disc; margin: 10px 0; }
.content-block ul li { margin-bottom: 8px; }
.sitemap-list a { color: var(--accent-light); font-size: 15px; font-weight: 700; }
.sitemap-list li { margin-bottom: 14px; }
.sitemap-list p { margin: 4px 0 0; font-size: 13px; color: var(--text-dim); }

/* ---------- Articles ---------- */
.article-container { max-width: 820px; margin: 0 auto; padding: 110px 24px 60px; }
.article-meta { color: var(--accent-light); font-weight: 600; margin-bottom: 1rem; display: block; font-size: 13.5px; }
.article-title { font-size: 2.2rem; color: var(--text); margin-bottom: 2rem; line-height: 1.35; }
.article-body { font-size: 1.05rem; line-height: 1.9; color: var(--text-dim); }
.article-body h2 { font-size: 1.5rem; color: var(--text); margin: 2.4rem 0 1.2rem; padding-bottom: .5rem; border-bottom: 1px solid var(--border-soft); }
.article-body h3 { font-size: 1.2rem; color: var(--text); margin: 1.8rem 0 .8rem; }
.article-body p { margin-bottom: 1.3rem; }
.article-body ul { margin-bottom: 1.3rem; padding-left: 1.4rem; list-style: disc; }
.article-body li { margin-bottom: .5rem; }
.article-body a { color: var(--accent-light); text-decoration: underline; }
.insight-list { max-width: 820px; margin: 0 auto; display: grid; gap: 16px; }
.insight-card { background: var(--bg-soft); border: 1px solid var(--border-soft); border-radius: var(--radius); padding: 24px 28px; }
.insight-card .meta { font-size: 12.5px; color: var(--accent-light); margin-bottom: 6px; }
.insight-card h3 { margin: 0 0 8px; font-size: 18px; }
.insight-card h3 a { color: var(--text); }
.insight-card h3 a:hover { color: var(--accent-light); }
.insight-card p { color: var(--text-dim); font-size: 14px; margin: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .adv-grid, .pricing-grid { grid-template-columns: 1fr; }
  .dodont-grid { grid-template-columns: 1fr; }
  .flow-pack-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .step-flow { flex-direction: column; gap: 26px; }
  .step-flow::before { display: none; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-actions .btn-ghost { display: none; }
  .burger { display: block; }
  .hero h1 { font-size: 28px; }
  .hero p.sub { font-size: 15px; }
  section { padding: 46px 0; }
  .why-card { padding: 24px; }

  #nav-toggle:checked ~ .mobile-menu { max-height: 400px; padding: 10px 24px 20px; }
  .mobile-menu {
    display: flex; max-height: 0; overflow: hidden; transition: max-height .25s ease;
    flex-direction: column; gap: 14px; padding: 0 24px; background: var(--bg);
  }
  .mobile-menu a { font-size: 15px; color: var(--text-dim); padding: 4px 0; }
  .mobile-menu .btn { width: 100%; text-align: center; }
}

@media (max-width: 520px) {
  .hero h1 { font-size: 24px; }
}

.content-block ol.step-list { padding-left: 0; list-style: none; counter-reset: step; margin: 10px 0 20px; }
.content-block ol.step-list li { position: relative; padding-left: 34px; margin-bottom: 10px; counter-increment: step; }
.content-block ol.step-list li::before { content: counter(step); position: absolute; left: 0; top: 0; width: 22px; height: 22px; border-radius: 50%; background: var(--accent); color: #1B1033; font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center; }