:root {
  --bg: #160c11;
  --card: rgba(29, 17, 23, 0.86);
  --line: rgba(255, 255, 255, 0.12);
  --text: #fff4ee;
  --muted: #d6beb4;
  --accent: #ffb38e;
  --accent-strong: #ffe7db;
  --warning: #ffd7a1;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
  --radius: 24px;
  --radius-small: 16px;
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Avenir Next", "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 166, 124, 0.2), transparent 32%),
    radial-gradient(circle at top right, rgba(255, 217, 168, 0.16), transparent 30%),
    linear-gradient(155deg, #13080d 0%, #1c0f16 46%, #22121a 100%);
}

a {
  color: inherit;
}

button {
  font: inherit;
}

h1,
h2,
h3,
p {
  margin: 0;
}

.shell {
  width: min(var(--max-width), calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 64px;
}

.page-stack {
  display: grid;
  gap: 22px;
}

.hero,
.section,
.footer,
.noscript-card {
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 44px;
  border-radius: 32px;
  background:
    linear-gradient(135deg, rgba(255, 179, 142, 0.16), rgba(255, 179, 142, 0.02) 40%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02)),
    var(--card);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -80px -80px auto;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 179, 142, 0.26) 0%, rgba(255, 179, 142, 0) 70%);
  pointer-events: none;
}

.hero-head {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  color: var(--accent-strong);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 700;
}

.lang-switcher {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 180px;
}

.lang-label {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
}

.lang-select {
  appearance: none;
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.lang-select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.lang-select option {
  color: #160c11;
}

h1 {
  margin-top: 18px;
  font-size: clamp(2.4rem, 4vw, 4.4rem);
  line-height: 0.96;
  letter-spacing: -0.04em;
  max-width: 12ch;
}

.lead {
  position: relative;
  z-index: 1;
  margin-top: 22px;
  max-width: 820px;
  font-size: 1.08rem;
  line-height: 1.8;
  color: var(--muted);
}

.hero-meta {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.meta-chip {
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--accent-strong);
  font-size: 0.95rem;
}

.section {
  padding: 30px;
  border-radius: var(--radius);
}

.section h2 {
  font-size: 1.65rem;
  letter-spacing: -0.03em;
}

.section-intro {
  margin-top: 12px;
  color: var(--muted);
  line-height: 1.8;
}

.grid {
  display: grid;
  gap: 18px;
  margin-top: 22px;
}

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

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

.card,
.faq-item {
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-small);
  background: rgba(255, 255, 255, 0.03);
}

.card h3,
.faq-item h3 {
  font-size: 1.08rem;
  line-height: 1.4;
}

.card p,
.faq-item p {
  margin-top: 10px;
  color: var(--muted);
  line-height: 1.75;
}

.list {
  margin: 18px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.list li + li {
  margin-top: 8px;
}

.notice {
  margin-top: 18px;
  padding: 18px 20px;
  border-radius: var(--radius-small);
  border: 1px solid rgba(255, 215, 161, 0.22);
  background: rgba(255, 215, 161, 0.08);
  color: var(--warning);
  line-height: 1.8;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.primary-link,
.secondary-link {
  display: inline-block;
  padding: 12px 16px;
  border-radius: 14px;
  font-weight: 700;
  text-decoration: none;
}

.primary-link {
  background: var(--accent);
  color: #32150b;
}

.secondary-link {
  background: rgba(255, 255, 255, 0.06);
  color: var(--accent-strong);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.primary-link:hover,
.primary-link:focus-visible,
.secondary-link:hover,
.secondary-link:focus-visible {
  transform: translateY(-1px);
  transition: transform 150ms ease;
}

.footer {
  padding: 24px 28px;
  border-radius: var(--radius);
  color: var(--muted);
  line-height: 1.8;
}

.footer a {
  color: var(--accent-strong);
  text-decoration: none;
}

.footer a:hover,
.footer a:focus-visible {
  text-decoration: underline;
}

.timestamp {
  margin-top: 12px;
  font-size: 0.92rem;
  color: rgba(255, 244, 238, 0.66);
}

@media (max-width: 900px) {
  .grid.two,
  .grid.three {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 30px 24px;
  }

  .section {
    padding: 24px 20px;
  }

  .footer {
    padding: 22px 20px;
  }

  .lang-switcher {
    width: 100%;
    min-width: 0;
  }
}