/* =====================================================================
   关于页 · 个人叙述版式
   —— 编辑式长页：左编号栏 + 右正文/媒体，区块之间用细线分隔
   ===================================================================== */

/* ---------- 首屏：左文 + 右竖版雪照 ---------- */
.ab-hero {
  display: grid;
  grid-template-columns: 1.18fr 0.82fr;
  gap: clamp(28px, 4.6vw, 68px);
  align-items: center;
  padding-top: calc(var(--nav-h) + clamp(36px, 6vh, 76px));
  padding-bottom: clamp(44px, 6vw, 84px);
}

.ab-hero__copy { display: flex; flex-direction: column; align-items: flex-start; gap: clamp(16px, 2vw, 26px); }

.ab-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6.2vw, 5rem);
  line-height: 0.98;
  letter-spacing: -0.045em;
  text-wrap: balance;
}
.ab-hero__title .ab-l,
.ab-big .ab-l { display: block; }
.ab-hero__title em {
  font-style: normal;
  color: var(--accent);
}

.ab-hero__lead {
  color: var(--text-2);
  font-size: clamp(0.95rem, 1.05vw, 1.06rem);
  line-height: 1.78;
  max-width: 36ch;
}

.ab-hero__cta { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 0.4rem; }

.ab-hero__media { margin: 0; }
.ab-hero__media img {
  width: 100%;
  height: clamp(340px, 62vh, 600px);
  object-fit: cover;
  object-position: 50% 42%;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  display: block;
}
.ab-hero__media figcaption {
  margin-top: 0.75rem;
  font-family: var(--font-display);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-3);
}

/* ---------- 区块骨架 ---------- */
.ab-sec {
  border-top: 1px solid var(--line-soft);
  padding-block: clamp(52px, 7.5vw, 104px);
}

.ab-sec__head {
  display: grid;
  grid-template-columns: clamp(56px, 7vw, 108px) 1fr;
  gap: clamp(16px, 2.4vw, 40px);
  align-items: start;
  margin-bottom: clamp(26px, 3.6vw, 48px);
}

.ab-sec__idx {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--accent);
  padding-top: 0.55em;
}

.ab-sec__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.4vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.038em;
  text-wrap: balance;
}

/* 区块里的大陈述句 */
.ab-big {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.9vw, 3.35rem);
  line-height: 1.16;
  letter-spacing: -0.038em;
  text-wrap: balance;
}
.ab-big--gold { color: var(--accent); }

/* ---------- 正文 + 图片的两栏 ---------- */
.ab-split {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(26px, 4.6vw, 68px);
  align-items: start;
}

/* 两栏里的照片统一限高，避免竖版原图把整个区块撑长 */
.ab-split .ab-photo img {
  width: 100%;
  height: clamp(320px, 50vh, 500px);
  object-fit: cover;
  object-position: 50% 32%;
}

.ab-copy { color: var(--text-2); font-size: clamp(0.95rem, 1.05vw, 1.05rem); line-height: 1.8; }
.ab-copy p + p { margin-top: 1.1em; }
.ab-copy strong { color: var(--text); font-weight: 500; }
.ab-copy--wide { max-width: 62ch; margin-left: calc(clamp(56px, 7vw, 108px) + clamp(16px, 2.4vw, 40px)); }

/* 三条事实 */
.ab-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(16px, 2.4vw, 34px); margin-top: clamp(26px, 3vw, 42px); }
.ab-facts .fact { border-top: 1px solid var(--line-soft); padding-top: 0.9rem; }

/* ---------- 媒体 ---------- */
.ab-photo { margin: 0; }
.ab-photo img {
  width: 100%;
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  object-fit: cover;
}
.ab-photo figcaption,
.ab-cap {
  margin-top: 0.8rem;
  color: var(--text-3);
  font-size: 0.82rem;
  line-height: 1.6;
  max-width: 62ch;
}

/* 视频容器 */
.ab-v {
  position: relative;
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-elev);
  border: 1px solid var(--line);
}
.ab-v video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.ab-v--169 { aspect-ratio: 16 / 9; }
.ab-v--wide { aspect-ratio: 2.44 / 1; }   /* 金山素材自带宽银幕，不裁不压 */
.ab-v--34  { aspect-ratio: 3 / 4; }

/* 播放提示（自动播放被拒 / 低动态偏好时出现） */
.ab-v__play {
  position: absolute; inset: 0; z-index: 2;
  display: grid; place-items: center;
  background: rgba(10, 10, 12, 0.34);
  border: 0; cursor: pointer;
  backdrop-filter: blur(2px);
}
.ab-v__play[hidden] { display: none; }
.ab-v__play span {
  width: 64px; height: 64px; border-radius: 50%;
  display: grid; place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: rgba(10, 10, 12, 0.42);
  transition: background .3s var(--ease), border-color .3s var(--ease);
}
.ab-v__play:hover span { background: rgba(200, 164, 92, 0.28); border-color: var(--accent); }
.ab-v__play svg { width: 20px; height: 20px; fill: #fff; margin-left: 3px; }

/* 声音开关沿用详情页的 .detail__sound 外观，只调位置 */
.ab-v .detail__sound { right: 14px; bottom: 14px; width: 38px; height: 38px; }

/* ---------- 雪的区块：宽视频 + 竖版视频/照片双列 ---------- */
.ab-duo {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: clamp(20px, 3vw, 44px);
  margin-top: clamp(14px, 2vw, 26px);
  align-items: stretch;
}
.ab-duo__note {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: clamp(14px, 1.8vw, 24px);
  padding-block: clamp(8px, 1.4vw, 20px);
}
.ab-duo__lead {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 1.85vw, 1.6rem);
  line-height: 1.5;
  letter-spacing: -0.022em;
  color: var(--text);
  max-width: 18em;
  text-wrap: balance;
}
.ab-duo__note .ab-cap { margin-top: 0; max-width: 22em; }

/* ---------- 金山区块：金色点缀 ---------- */
.ab-gold .ab-sec__idx { color: var(--accent-hi); }
.ab-bless {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.2vw, 1.9rem);
  letter-spacing: 0.02em;
  color: var(--text);
  margin-top: 0.9rem;
}
.ab-gold__grid { margin-top: clamp(18px, 2.4vw, 32px); }
.ab-gold .ab-photo--gold { width: 100%; margin-top: clamp(14px, 2vw, 26px); }
/* 原图是 4:3，主体压在画面下三分之一；裁成 16:9 并下移取景，山脊才在正中 */
.ab-gold .ab-photo--gold img { height: auto; aspect-ratio: 2.33 / 1; object-position: 50% 82%; }

/* ---------- 结尾 ---------- */
.ab-outro { text-align: left; }
.ab-outro__line {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  line-height: 1.24;
  letter-spacing: -0.03em;
  max-width: 26em;
  text-wrap: balance;
}
.ab-outro .btn { margin-top: clamp(20px, 2.6vw, 34px); }

/* ---------- 联系 ---------- */
.ab-contact__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2.4vw, 28px);
}
.ab-contact__item {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: clamp(20px, 2.6vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elev);
  text-decoration: none;
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}
a.ab-contact__item:hover,
button.ab-contact__item:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
/* 邮箱 / 微信是 <button data-copy>，需要把组件自身的 padding 补回来
   （全局的 button[data-copy] 重置会把 padding 清零） */
button.ab-contact__item {
  padding: clamp(20px, 2.6vw, 30px);
  width: 100%;
  text-align: left;
  font: inherit;
  color: inherit;
}
.ab-contact__k {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-3);
}
.ab-contact__v {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 1.6vw, 1.4rem);
  letter-spacing: -0.02em;
  color: var(--text);
  word-break: break-all;
}
.ab-contact__note {
  margin-top: 1.4rem;
  color: var(--text-3);
  font-size: 0.82rem;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1000px) {
  .ab-hero { grid-template-columns: 1fr; align-items: start; }
  .ab-hero__media img { aspect-ratio: 4 / 3; }
  .ab-hero__media { order: -1; }
  .ab-split { grid-template-columns: 1fr; }
  .ab-copy--wide { margin-left: 0; }
  .ab-gold__grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .ab-sec__head { grid-template-columns: 1fr; gap: 0.5rem; }
  .ab-sec__idx { padding-top: 0; }
  .ab-facts { grid-template-columns: 1fr; gap: 1rem; }
  .ab-duo { grid-template-columns: 1fr; }
  .ab-contact__grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .ab-v__play span { transition: none; }
}