/* ============================================
   基础排版与全局
   ============================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    radial-gradient(ellipse at 20% -10%, rgba(201, 164, 92, .10), transparent 55%),
    radial-gradient(ellipse at 85% 110%, rgba(62, 74, 90, .07), transparent 50%);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-title);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: .06em;
}

p { text-align: justify; }

a {
  color: var(--indigo);
  text-decoration: none;
  transition: color .25s var(--ease);
}
a:hover { color: var(--cinnabar); }

img { max-width: 100%; }

::selection {
  background: var(--cinnabar);
  color: var(--paper);
}

/* 滚动条（本地浏览器，克制的古风调） */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--paper-deep); }
::-webkit-scrollbar-thumb {
  background: var(--ink-faint);
  border-radius: 5px;
  border: 2px solid var(--paper-deep);
}

/* 版心 */
.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

/* 区块通用 */
.section { padding: var(--gap-xl) 0; }
.section + .section { border-top: 1px solid var(--paper-line); }

.section-head {
  text-align: center;
  margin-bottom: var(--gap-xl);
}
.section-head .kicker {
  display: inline-block;
  font-size: .8rem;
  letter-spacing: .35em;
  color: var(--gold);
  margin-bottom: .6rem;
  padding-left: .35em; /* 抵消 letter-spacing 视觉偏移 */
}
.section-head h2 {
  font-size: 1.9rem;
  color: var(--ink);
  position: relative;
  display: inline-block;
}
.section-head h2::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -.7rem;
  transform: translateX(-50%);
  width: 3.2rem;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cinnabar), transparent);
}
.section-head .sub {
  margin-top: 1.4rem;
  color: var(--ink-soft);
  font-size: .95rem;
  max-width: 560px;
  margin-inline: auto;
}

/* 分隔装饰线 */
.divider-ornament {
  display: flex;
  align-items: center;
  gap: .8rem;
  justify-content: center;
  color: var(--gold);
  font-size: .85rem;
  margin: var(--gap-lg) 0;
  letter-spacing: .3em;
}
.divider-ornament::before,
.divider-ornament::after {
  content: "";
  height: 1px;
  width: 120px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}