/* ============================================================
   about.css — 关于我们：公司介绍
   墨黑描金玻璃卡，与整站风格统一
   ============================================================ */

.about {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  place-items: center;
  overflow: hidden;
  scroll-snap-align: start;
  padding: 120px 20px 90px;
  text-align: center;
  /* 墨色底 + 微弱暖光 */
  background:
    radial-gradient(90% 60% at 50% 40%, rgba(180, 140, 70, .06) 0%, transparent 70%),
    radial-gradient(120% 90% at 50% 28%, #1b150c 0%, #0d0b08 72%);
}

/* 描金装饰线（顶部） */
.about::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(320px, 60vw);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-500), transparent);
  z-index: 2;
}

/* ---------- 主体卡片 ---------- */
.about__card {
  position: relative;
  z-index: 2;
  width: min(820px, 94vw);
  padding: clamp(34px, 5vw, 56px) clamp(24px, 5vw, 60px);
  text-align: center;
  background: var(--glass-bg);
  backdrop-filter: blur(14px);
  border: 1px solid var(--glass-line);
  border-radius: 22px;
  box-shadow: var(--shadow-lift), inset 0 1px 0 rgba(255, 255, 255, .06);
}
/* 描金双线边角（与 contact__card 一致） */
.about__card::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(200, 164, 92, .26);
  border-radius: 15px;
  pointer-events: none;
}

/* ---------- 印章标题 ---------- */
.about__seal {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 15px;
  letter-spacing: 8px;
  color: var(--ink-900);
  background: var(--grad-gold);
  padding: 6px 18px;
  border-radius: 6px;
  margin-bottom: 18px;
  box-shadow: var(--glow-gold);
}

.about__title {
  font-family: var(--font-serif);
  font-size: clamp(28px, 5vw, 44px);
  letter-spacing: 6px;
  background: linear-gradient(180deg, #fbf2d4, #c8a45c);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 10px;
}

/* ---------- 公司全称 ---------- */
.about__company {
  font-family: var(--font-serif);
  font-size: clamp(17px, 2.2vw, 22px);
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--gold-400);
  margin-bottom: 28px;
}

/* ---------- 基本信息行 ---------- */
.about__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 32px;
  margin-bottom: 36px;
  font-size: 14px;
  color: var(--paper-soft);
  letter-spacing: 1px;
}
.about__meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
}
.about__meta-label {
  color: var(--gold-400);
  font-weight: 600;
}
.about__meta-value {
  color: var(--paper);
}

/* ---------- 经营范围 ---------- */
.about__scope {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  text-align: left;
  margin-top: 10px;
}

.about__scope-box {
  padding: 24px clamp(16px, 3vw, 28px);
  border-radius: 14px;
  border: 1px solid var(--glass-line);
  background: rgba(13, 11, 8, .35);
  transition: border-color .35s, box-shadow .35s;
}
.about__scope-box:hover {
  border-color: var(--gold-400);
  box-shadow: var(--glow-gold);
}

.about__scope-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.about__scope-icon {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  flex-shrink: 0;
}
.about__scope-icon--permit {
  background: rgba(200, 164, 92, .18);
  color: var(--gold-400);
}
.about__scope-icon--general {
  background: rgba(200, 164, 92, .12);
  color: var(--gold-300);
}
.about__scope-icon svg {
  width: 20px;
  height: 20px;
}

.about__scope-title {
  font-family: var(--font-serif);
  font-size: 18px;
  letter-spacing: 3px;
  color: var(--gold-400);
}

.about__scope-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.about__scope-list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--paper-soft);
  letter-spacing: .5px;
}
.about__scope-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold-600);
}

/* ---------- 分割线 ---------- */
.about__divider {
  width: min(200px, 40vw);
  height: 1px;
  margin: 20px auto 28px;
  background: linear-gradient(90deg, transparent, var(--glass-line), transparent);
}