/* ===== 真实产出页（/showcase.html）=====
   只在本页引用，不动 style.css，避免为 2 个页面给 406 页升缓存版本。
   类名统一 sc- 前缀，避免和站内既有规则冲突。 */

.sc-hero {
  padding: 64px 0 40px;
  background: linear-gradient(180deg, #f0fdfa 0%, #ffffff 100%);
}

.sc-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: #0d9488;
  background: #ccfbf1;
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.sc-hero h1 {
  font-size: clamp(28px, 3.6vw, 44px);
  line-height: 1.22;
  margin: 0 0 16px;
  color: #0b0f1a;
  text-wrap: balance;
  line-break: strict;
}

.sc-lead {
  font-size: 17px;
  line-height: 1.7;
  color: #475569;
  max-width: 720px;
  margin: 0 0 20px;
}

.sc-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  font-size: 14px;
  color: #64748b;
  border-top: 1px solid #e2e8f0;
  padding-top: 18px;
  max-width: 720px;
}

.sc-facts b { color: #0b0f1a; }

/* ---- 案例块 ---- */
.sc-cases { padding: 20px 0 72px; }

.sc-case {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  gap: 40px;
  align-items: center;
  padding: 44px 0;
  border-bottom: 1px solid #e2e8f0;
}

.sc-case:last-child { border-bottom: 0; }

/* 交替左右，避免一路看下来视觉疲劳 */
.sc-case:nth-child(even) .sc-media { order: 2; }

.sc-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  color: #0d9488;
  margin-bottom: 10px;
  font-variant-numeric: tabular-nums;
}

.sc-case h2 {
  font-size: clamp(20px, 2.1vw, 27px);
  line-height: 1.3;
  margin: 0 0 14px;
  color: #0b0f1a;
  text-wrap: balance;
  line-break: strict;
}

.sc-io {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px 14px;
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.6;
}

.sc-io dt {
  color: #94a3b8;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .04em;
  padding-top: 2px;
  white-space: nowrap;
}

.sc-io dd { margin: 0; color: #334155; }

.sc-note {
  font-size: 13px;
  line-height: 1.65;
  color: #64748b;
  background: #f8fafc;
  border-left: 3px solid #cbd5e1;
  padding: 10px 14px;
  border-radius: 0 6px 6px 0;
  margin: 0;
}

/* ---- 媒体区 ---- */
.sc-media {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  min-width: 0;
}

/* 缩略一行在上、视频在下。
   ★ 不要做成左右并排：媒体列只有约 600px，190px 再切三份，每张 60px，
     塔和马的细节全糊掉，等于没展示。 */
.sc-media__col {
  display: grid;
  gap: 12px;
  width: 100%;
  max-width: 520px;
  justify-items: center;
}

.sc-media img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 28px rgba(11, 15, 26, .12);
}

/* before / after */
.sc-ba {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  width: 100%;
}

.sc-ba figure {
  margin: 0;
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 28px rgba(11, 15, 26, .12);
  background: #e2e8f0;
}

.sc-ba img {
  width: 100%;
  height: auto;
  border-radius: 0;
  box-shadow: none;
  aspect-ratio: 9 / 16;
  object-fit: cover;
}

.sc-ba figcaption {
  position: absolute;
  left: 10px;
  top: 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  padding: 4px 9px;
  border-radius: 999px;
  background: rgba(11, 15, 26, .72);
  color: #fff;
  backdrop-filter: blur(4px);
}

.sc-ba figcaption.is-after { background: rgba(13, 148, 136, .92); }

/* 视频 */
.sc-video {
  position: relative;
  display: block;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 28px rgba(11, 15, 26, .14);
  background: #0b0f1a;
  max-width: 100%;
  line-height: 0;
}

/* ★ 宽度约束优先：先用 max-height 限高会让 16:9 的片子按高度反推宽度，
   390px 视口下直接撑出 930px（实测溢出 496px）。改成锁定宽度、高度自适应。 */
.sc-video--wide { width: 100%; }
.sc-video--tall { width: min(320px, 100%); justify-self: center; }

.sc-video video {
  display: block;
  border-radius: 0;
  box-shadow: none;
  width: 100%;
  height: auto;
}

.sc-video__play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 0;
  background: rgba(11, 15, 26, .28);
  cursor: pointer;
  transition: opacity .2s;
}

.sc-video__play::before {
  content: "";
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 14px 0 14px 24px;
  border-color: transparent transparent transparent #fff;
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, .4));
  margin-left: 6px;
}

.sc-video__play:hover { background: rgba(11, 15, 26, .4); }
.sc-video__play[hidden] { display: none; }

/* 三个视角缩略 + 视频 */
.sc-views {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  width: 100%;
  align-content: start;
}

.sc-views img {
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 4px 14px rgba(11, 15, 26, .12);
}

.sc-views__label {
  grid-column: 1 / -1;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .05em;
  color: #94a3b8;
  text-align: center;
}

/* 音频 */
.sc-audio {
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.sc-audio__art {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 16px;
  background:
    radial-gradient(circle at 30% 25%, rgba(13, 148, 136, .55), transparent 55%),
    radial-gradient(circle at 72% 78%, rgba(168, 85, 247, .42), transparent 58%),
    #0b0f1a;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  text-align: center;
  padding: 24px;
  box-shadow: 0 8px 28px rgba(11, 15, 26, .2);
}

.sc-audio__art strong {
  font-size: 18px;
  line-height: 1.4;
  margin-bottom: 6px;
}

.sc-audio__art span { font-size: 12.5px; opacity: .72; }

.sc-audio audio { width: 100%; }

/* 课件 */
.sc-slides {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sc-slides__strip {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 8px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

/* 一次露出两张，第三张被裁一半 —— 这是「可以横向滑」的视觉暗示；
   只露一张（78%）读者会以为就这一页，不会再往右划。 */
.sc-slides__strip img {
  flex: 0 0 56%;
  width: 56%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 10px;
  scroll-snap-align: start;
  box-shadow: 0 6px 20px rgba(11, 15, 26, .12);
}

.sc-dl {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  font-size: 14px;
  font-weight: 700;
  color: #0d9488;
  text-decoration: none;
  border: 1.5px solid #99f6e4;
  background: #f0fdfa;
  padding: 9px 16px;
  border-radius: 10px;
}

.sc-dl:hover { background: #ccfbf1; }

/* ---- 底部 CTA ---- */
.sc-cta {
  padding: 56px 0 72px;
  background: #f8fafc;
  border-top: 1px solid #e2e8f0;
  text-align: center;
}

.sc-cta h2 {
  font-size: clamp(22px, 2.4vw, 30px);
  margin: 0 0 12px;
  color: #0b0f1a;
  text-wrap: balance;
}

.sc-cta p {
  color: #475569;
  margin: 0 auto 24px;
  max-width: 560px;
  line-height: 1.7;
}

.sc-cta__btns {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---- 响应式 ---- */
@media (max-width: 900px) {
  .sc-case {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 34px 0;
  }

  /* 单列时媒体一律在上，顺序靠 CSS 控制，不依赖 DOM 顺序 */
  .sc-case:nth-child(even) .sc-media,
  .sc-case .sc-media { order: -1; }

  .sc-media { min-height: 0; }

  .sc-media__col { max-width: 100%; gap: 10px; }

  .sc-ba img { aspect-ratio: 9 / 16; }
}

@media (max-width: 560px) {
  .sc-video--tall { width: min(280px, 100%); }
  .sc-slides__strip img { flex-basis: 88%; width: 88%; }
  .sc-io { grid-template-columns: 1fr; gap: 4px; }
  .sc-io dt { padding-top: 6px; }
}