/* ============================================================
 * scenes.css —— 「现场」· 下载与场景视频秀
 * ============================================================ */

@import url('./base.css');

/* —— Hero —— */
.sc-hero {
  position: relative;
  min-height: 60vh;
  padding: 180px 0 var(--s-7);
  overflow: hidden;
}
.sc-hero__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--s-7);
  align-items: end;
}
.sc-hero__title {
  font-family: var(--font-serif-cn);
  font-size: var(--fs-h1);
  font-weight: 600;
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  color: #F0F2FF;
  margin-top: var(--s-5);
  margin-bottom: var(--s-5);
  text-shadow: 0 0 30px rgba(123, 226, 214, 0.08);
}
.sc-hero__title em {
  font-style: normal;
  color: var(--cyan);
  font-family: var(--font-serif-en);
  font-weight: 400;
  text-shadow: 0 0 24px var(--cyan-glow);
}
.sc-hero__sub {
  font-family: var(--font-serif-en);
  font-size: var(--fs-h6);
  font-style: italic;
  color: var(--gray-4);
}
.sc-hero__telemetry {
  display: flex;
  gap: var(--s-7);
  flex-direction: column;
  font-family: var(--font-mono);
  font-size: var(--fs-mini);
  letter-spacing: var(--ls-mono);
  color: var(--gray-4);
  text-transform: uppercase;
}
.sc-hero__telemetry-row {
  display: flex; align-items: baseline; gap: 12px;
  border-bottom: 1px solid var(--line-hair);
  padding-bottom: 8px;
}
.sc-hero__telemetry-row .v {
  margin-left: auto;
  font-family: var(--font-serif-en);
  font-size: var(--fs-h5);
  letter-spacing: -0.02em;
  color: var(--cyan);
  text-transform: none;
  font-style: normal;
}

/* ============================================================
 * 下载条
 * ============================================================ */
.sc-downloads {
  border-top: 1px solid var(--line-fine);
  border-bottom: 1px solid var(--line-fine);
  background: rgba(10, 14, 38, 0.6);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  padding: var(--s-6) 0;
  margin-bottom: var(--s-9);
}
.sc-downloads__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--s-5);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--ls-mono);
  color: var(--gray-3);
  text-transform: uppercase;
}
.sc-downloads__head h2 {
  font-family: var(--font-serif-cn);
  font-size: var(--fs-h5);
  font-weight: 500;
  color: #F0F2FF;
  letter-spacing: var(--ls-tight);
  text-transform: none;
}
.sc-downloads__grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  background: var(--line-fine);
  border: 1px solid var(--line-fine);
  overflow: visible;
}
.sc-dl {
  background: rgba(17, 22, 58, 0.5);
  padding: var(--s-5);
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
  cursor: pointer;
  transition: background var(--t-base) var(--ease-jt);
  position: relative;
  overflow: hidden;
}
.sc-dl::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 100%, var(--cyan-soft), transparent 60%);
  opacity: 0;
  transition: opacity var(--t-base) var(--ease-jt);
  pointer-events: none;
}
.sc-dl:hover { background: rgba(35, 42, 101, 0.7); }
.sc-dl:hover::after { opacity: 1; }
.sc-dl:hover .sc-dl__name { color: var(--cyan); }
.sc-dl:hover .sc-dl__icon { color: var(--cyan); transform: translateY(-2px); }

.sc-dl__icon {
  width: 32px; height: 32px;
  color: var(--gray-4);
  transition: color var(--t-base) var(--ease-jt), transform var(--t-base) var(--ease-jt);
  position: relative;
}
.sc-dl__name {
  font-family: var(--font-sans-cn);
  font-size: 14px;
  font-weight: 500;
  color: #F0F2FF;
  margin-top: var(--s-2);
  position: relative;
  transition: color var(--t-base) var(--ease-jt);
}
.sc-dl__sub {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--ls-mono);
  color: var(--gray-4);
  text-transform: uppercase;
  position: relative;
}
.sc-dl__cta {
  margin-top: var(--s-3);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--ls-mono);
  color: var(--cyan);
  text-transform: uppercase;
  display: inline-flex;
  gap: 4px;
  align-items: center;
  position: relative;
}
.sc-dl__cta::after {
  content: '→';
  transition: transform var(--t-base) var(--ease-jt);
}
.sc-dl:hover .sc-dl__cta::after { transform: translateX(4px); }

/* QR 弹出 */
.sc-dl--qr {
  position: relative;
  overflow: visible;
  z-index: 2;
}
.sc-dl--qr:hover { z-index: 5; }
.sc-dl__qr {
  position: absolute;
  bottom: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  width: 160px; height: 160px;
  background: var(--mist);
  padding: 12px;
  border: 1px solid var(--cyan);
  box-shadow: 0 16px 60px rgba(0, 0, 0, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: all var(--t-base) var(--ease-jt);
  z-index: var(--z-raised);
}
.sc-dl--qr:hover .sc-dl__qr,
.sc-dl--qr.is-qr-open .sc-dl__qr,
.sc-dl--qr:focus-within .sc-dl__qr {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.sc-dl__qr svg,
.sc-dl__qr img {
  width: 100%;
  height: 100%;
}
.sc-dl__qr img { object-fit: contain; }
.sc-dl__qr::after {
  content: '微信扫码';
  position: absolute;
  bottom: -22px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--ls-mono);
  color: var(--cyan);
  text-transform: uppercase;
  white-space: nowrap;
}

/* ============================================================
 * 场景列表
 * ============================================================ */
.sc-list {
  padding-bottom: var(--s-10);
}
.sc-list__intro {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: var(--s-7);
  margin-bottom: var(--s-9);
  align-items: end;
}
.sc-list__title {
  font-family: var(--font-serif-cn);
  font-size: var(--fs-h2);
  font-weight: 500;
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  color: #F0F2FF;
  margin-bottom: var(--s-3);
}
.sc-list__sub {
  font-family: var(--font-serif-en);
  font-size: var(--fs-h6);
  font-style: italic;
  color: var(--gray-4);
  line-height: var(--lh-snug);
}
.sc-list__nav {
  display: flex;
  gap: var(--s-4);
  flex-wrap: wrap;
  justify-content: flex-end;
  align-self: end;
}
.sc-list__nav-item {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--ls-mono);
  color: var(--gray-4);
  text-transform: uppercase;
  padding: 6px 0;
  transition: color var(--t-quick) var(--ease-jt);
  position: relative;
}
.sc-list__nav-item:hover { color: var(--cyan); }
.sc-list__nav-item .num { color: var(--gray-3); margin-right: 4px; }

/* —— 单个场景 —— */
.scene-card {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: var(--s-8);
  padding: var(--s-8) 0;
  border-top: 1px solid var(--line-fine);
  align-items: start;
  position: relative;
}
.scene-card:nth-child(2n) {
  grid-template-columns: 7fr 5fr;
}
.scene-card:nth-child(2n) .scene-card__copy {
  order: 2;
}
.scene-card:nth-child(2n) .scene-card__media {
  order: 1;
}

.scene-card__copy {
  position: sticky;
  top: 100px;
}
.scene-card__num {
  font-family: var(--font-serif-en);
  font-size: var(--fs-h2);
  font-weight: 300;
  font-style: italic;
  color: var(--cyan);
  letter-spacing: -0.02em;
  margin-bottom: var(--s-2);
  line-height: 1;
}
.scene-card__cat {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--ls-mono);
  color: var(--gray-3);
  text-transform: uppercase;
  margin-bottom: var(--s-4);
}
.scene-card__title {
  font-family: var(--font-serif-cn);
  font-size: var(--fs-h3);
  font-weight: 500;
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  color: #F0F2FF;
  margin-bottom: var(--s-4);
}
.scene-card__body {
  font-size: var(--fs-body);
  line-height: var(--lh-loose);
  color: var(--gray-5);
  margin-bottom: var(--s-6);
}
.scene-card__metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-5);
  margin-bottom: var(--s-6);
}
.scene-metric {
  border-top: 1px solid var(--cyan);
  padding-top: var(--s-3);
  position: relative;
}
.scene-metric::before {
  content: '';
  position: absolute;
  top: -1px; left: 0; right: 0;
  height: 1px;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan-glow);
}
.scene-metric__value {
  font-family: var(--font-serif-en);
  font-size: var(--fs-h3);
  font-weight: 300;
  letter-spacing: -0.03em;
  color: #F0F2FF;
  line-height: 1;
}
.scene-metric__value .unit {
  font-size: 0.5em;
  color: var(--cyan);
  margin-left: 2px;
}
.scene-metric__label {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--ls-mono);
  color: var(--gray-4);
  text-transform: uppercase;
  margin-top: var(--s-2);
}
.scene-card__chips {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.scene-card__chip {
  padding: 4px 10px;
  border: 1px solid var(--line-mid);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--ls-mono);
  color: var(--gray-5);
  text-transform: uppercase;
}

/* —— 视频卡 —— */
.scene-card__media {
  position: relative;
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, rgba(43,27,110,0.5), rgba(11,14,38,0.4));
  border: 1px solid var(--line-fine);
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--t-base) var(--ease-jt);
}
.scene-card__media:hover { border-color: var(--cyan); box-shadow: 0 0 32px rgba(123, 226, 214, 0.18); }
.scene-card__media video,
.scene-card__media img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.scene-card__media-poster {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(123, 226, 214, 0.18), transparent 60%),
              linear-gradient(135deg, rgba(43,27,110,0.7), rgba(35,42,101,0.5));
}
.scene-card__media-poster::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, transparent 0, transparent 31px, rgba(255,255,255,0.04) 31px, rgba(255,255,255,0.04) 32px),
    repeating-linear-gradient(0deg, transparent 0, transparent 31px, rgba(255,255,255,0.04) 31px, rgba(255,255,255,0.04) 32px);
}
.scene-card__media-play {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 88px; height: 88px;
  border: 1px solid var(--cyan);
  background: rgba(11, 14, 38, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan);
  transition: transform var(--t-base) var(--ease-jt), box-shadow var(--t-base) var(--ease-jt);
}
.scene-card__media:hover .scene-card__media-play {
  transform: translate(-50%, -50%) scale(1.06);
  box-shadow: 0 0 24px var(--cyan-glow);
}
.scene-card__media-meta {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  display: flex;
  justify-content: space-between;
  padding: var(--s-4) var(--s-5);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--ls-mono);
  color: var(--gray-4);
  text-transform: uppercase;
  background: linear-gradient(180deg, transparent, rgba(8, 7, 31, 0.7));
}
.scene-card__media-time { color: var(--cyan); }

/* —— 响应式 —— */
@media (max-width: 1100px) {
  .sc-hero__inner { grid-template-columns: 1fr; gap: var(--s-5); }
  .sc-hero__telemetry { flex-direction: row; flex-wrap: wrap; }
  .sc-downloads__grid { grid-template-columns: repeat(3, 1fr); }
  .scene-card, .scene-card:nth-child(2n) { grid-template-columns: 1fr; }
  .scene-card__copy { position: static; }
  .scene-card:nth-child(2n) .scene-card__copy { order: 1; }
  .scene-card:nth-child(2n) .scene-card__media { order: 2; }
  .sc-list__intro { grid-template-columns: 1fr; }
  .sc-list__nav { justify-content: flex-start; }
}
@media (max-width: 640px) {
  .sc-hero { padding: 100px 0 var(--s-6); min-height: auto; }
  .sc-hero__title { font-size: clamp(34px, 9vw, 48px); }
  .sc-downloads { padding: var(--s-5) 0; margin-bottom: var(--s-7); }
  .sc-downloads__grid { grid-template-columns: repeat(2, 1fr); }
  .sc-downloads__head { flex-direction: column; align-items: flex-start; gap: var(--s-2); }
  .sc-dl { padding: var(--s-4); }
  .sc-list__title { font-size: clamp(28px, 7vw, 44px); }
  .scene-card { padding: var(--s-6) 0; gap: var(--s-5); }
  .scene-card__num { font-size: var(--fs-h3); }
  .scene-card__title { font-size: clamp(26px, 6vw, 36px); }
  .scene-card__metrics { grid-template-columns: 1fr 1fr; gap: var(--s-3); }
  .scene-metric__value { font-size: var(--fs-h4); }
}